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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/net
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/net')
-rw-r--r--include/net/act_api.h116
-rw-r--r--include/net/addrconf.h240
-rw-r--r--include/net/af_unix.h78
-rw-r--r--include/net/ah.h35
-rw-r--r--include/net/arp.h32
-rw-r--r--include/net/atmclip.h62
-rw-r--r--include/net/ax25.h385
-rw-r--r--include/net/bluetooth/bluetooth.h181
-rw-r--r--include/net/bluetooth/hci.h755
-rw-r--r--include/net/bluetooth/hci_core.h626
-rw-r--r--include/net/bluetooth/l2cap.h238
-rw-r--r--include/net/bluetooth/rfcomm.h353
-rw-r--r--include/net/bluetooth/sco.h79
-rw-r--r--include/net/checksum.h87
-rw-r--r--include/net/compat.h39
-rw-r--r--include/net/datalink.h18
-rw-r--r--include/net/dn.h236
-rw-r--r--include/net/dn_dev.h194
-rw-r--r--include/net/dn_fib.h204
-rw-r--r--include/net/dn_neigh.h28
-rw-r--r--include/net/dn_nsp.h209
-rw-r--r--include/net/dn_route.h112
-rw-r--r--include/net/dsfield.h54
-rw-r--r--include/net/dst.h279
-rw-r--r--include/net/esp.h59
-rw-r--r--include/net/flow.h95
-rw-r--r--include/net/gen_stats.h49
-rw-r--r--include/net/icmp.h60
-rw-r--r--include/net/if_inet6.h285
-rw-r--r--include/net/inet_common.h44
-rw-r--r--include/net/inet_ecn.h108
-rw-r--r--include/net/inetpeer.h66
-rw-r--r--include/net/ip.h353
-rw-r--r--include/net/ip6_checksum.h94
-rw-r--r--include/net/ip6_fib.h185
-rw-r--r--include/net/ip6_route.h141
-rw-r--r--include/net/ip6_tunnel.h40
-rw-r--r--include/net/ip_fib.h284
-rw-r--r--include/net/ip_mp_alg.h99
-rw-r--r--include/net/ip_vs.h999
-rw-r--r--include/net/ipcomp.h11
-rw-r--r--include/net/ipconfig.h27
-rw-r--r--include/net/ipip.h51
-rw-r--r--include/net/ipv6.h472
-rw-r--r--include/net/ipx.h161
-rw-r--r--include/net/irda/af_irda.h87
-rw-r--r--include/net/irda/crc.h29
-rw-r--r--include/net/irda/discovery.h100
-rw-r--r--include/net/irda/ircomm_core.h108
-rw-r--r--include/net/irda/ircomm_event.h85
-rw-r--r--include/net/irda/ircomm_lmp.h38
-rw-r--r--include/net/irda/ircomm_param.h149
-rw-r--r--include/net/irda/ircomm_ttp.h39
-rw-r--r--include/net/irda/ircomm_tty.h139
-rw-r--r--include/net/irda/ircomm_tty_attach.h94
-rw-r--r--include/net/irda/irda.h117
-rw-r--r--include/net/irda/irda_device.h301
-rw-r--r--include/net/irda/iriap.h108
-rw-r--r--include/net/irda/iriap_event.h85
-rw-r--r--include/net/irda/irias_object.h108
-rw-r--r--include/net/irda/irlan_client.h42
-rw-r--r--include/net/irda/irlan_common.h222
-rw-r--r--include/net/irda/irlan_eth.h33
-rw-r--r--include/net/irda/irlan_event.h81
-rw-r--r--include/net/irda/irlan_filter.h33
-rw-r--r--include/net/irda/irlan_provider.h52
-rw-r--r--include/net/irda/irlap.h290
-rw-r--r--include/net/irda/irlap_event.h131
-rw-r--r--include/net/irda/irlap_frame.h142
-rw-r--r--include/net/irda/irlmp.h295
-rw-r--r--include/net/irda/irlmp_event.h98
-rw-r--r--include/net/irda/irlmp_frame.h63
-rw-r--r--include/net/irda/irmod.h109
-rw-r--r--include/net/irda/irqueue.h96
-rw-r--r--include/net/irda/irttp.h210
-rw-r--r--include/net/irda/parameters.h102
-rw-r--r--include/net/irda/qos.h104
-rw-r--r--include/net/irda/timer.h104
-rw-r--r--include/net/irda/wrapper.h58
-rw-r--r--include/net/iw_handler.h540
-rw-r--r--include/net/lapb.h152
-rw-r--r--include/net/llc.h99
-rw-r--r--include/net/llc_c_ac.h202
-rw-r--r--include/net/llc_c_ev.h269
-rw-r--r--include/net/llc_c_st.h48
-rw-r--r--include/net/llc_conn.h119
-rw-r--r--include/net/llc_if.h101
-rw-r--r--include/net/llc_pdu.h436
-rw-r--r--include/net/llc_s_ac.h39
-rw-r--r--include/net/llc_s_ev.h67
-rw-r--r--include/net/llc_s_st.h32
-rw-r--r--include/net/llc_sap.h29
-rw-r--r--include/net/ndisc.h135
-rw-r--r--include/net/neighbour.h370
-rw-r--r--include/net/netrom.h242
-rw-r--r--include/net/p8022.h10
-rw-r--r--include/net/pkt_act.h275
-rw-r--r--include/net/pkt_cls.h366
-rw-r--r--include/net/pkt_sched.h249
-rw-r--r--include/net/protocol.h99
-rw-r--r--include/net/psnap.h7
-rw-r--r--include/net/raw.h42
-rw-r--r--include/net/rawv6.h27
-rw-r--r--include/net/rose.h235
-rw-r--r--include/net/route.h205
-rw-r--r--include/net/sch_generic.h175
-rw-r--r--include/net/scm.h71
-rw-r--r--include/net/sctp/command.h211
-rw-r--r--include/net/sctp/constants.h432
-rw-r--r--include/net/sctp/sctp.h620
-rw-r--r--include/net/sctp/sm.h442
-rw-r--r--include/net/sctp/structs.h1752
-rw-r--r--include/net/sctp/tsnmap.h207
-rw-r--r--include/net/sctp/ulpevent.h162
-rw-r--r--include/net/sctp/ulpqueue.h92
-rw-r--r--include/net/sctp/user.h589
-rw-r--r--include/net/slhc_vj.h188
-rw-r--r--include/net/snmp.h145
-rw-r--r--include/net/sock.h1297
-rw-r--r--include/net/syncppp.h105
-rw-r--r--include/net/tc_act/tc_gact.h17
-rw-r--r--include/net/tc_act/tc_ipt.h16
-rw-r--r--include/net/tc_act/tc_mirred.h15
-rw-r--r--include/net/tc_act/tc_pedit.h14
-rw-r--r--include/net/tcp.h2022
-rw-r--r--include/net/tcp_ecn.h126
-rw-r--r--include/net/transp_v6.h53
-rw-r--r--include/net/udp.h99
-rw-r--r--include/net/x25.h273
-rw-r--r--include/net/x25device.h17
-rw-r--r--include/net/xfrm.h905
131 files changed, 26615 insertions, 0 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h
new file mode 100644
index 000000000000..ed00a995f576
--- /dev/null
+++ b/include/net/act_api.h
@@ -0,0 +1,116 @@
1#ifndef __NET_ACT_API_H
2#define __NET_ACT_API_H
3
4/*
5 * Public police action API for classifiers/qdiscs
6 */
7
8#include <net/sch_generic.h>
9#include <net/pkt_sched.h>
10
11#define tca_gen(name) \
12struct tcf_##name *next; \
13 u32 index; \
14 int refcnt; \
15 int bindcnt; \
16 u32 capab; \
17 int action; \
18 struct tcf_t tm; \
19 struct gnet_stats_basic bstats; \
20 struct gnet_stats_queue qstats; \
21 struct gnet_stats_rate_est rate_est; \
22 spinlock_t *stats_lock; \
23 spinlock_t lock
24
25struct tcf_police
26{
27 tca_gen(police);
28 int result;
29 u32 ewma_rate;
30 u32 burst;
31 u32 mtu;
32 u32 toks;
33 u32 ptoks;
34 psched_time_t t_c;
35 struct qdisc_rate_table *R_tab;
36 struct qdisc_rate_table *P_tab;
37};
38
39#ifdef CONFIG_NET_CLS_ACT
40
41#define ACT_P_CREATED 1
42#define ACT_P_DELETED 1
43
44struct tcf_act_hdr
45{
46 tca_gen(act_hdr);
47};
48
49struct tc_action
50{
51 void *priv;
52 struct tc_action_ops *ops;
53 __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
54 __u32 order;
55 struct tc_action *next;
56};
57
58#define TCA_CAP_NONE 0
59struct tc_action_ops
60{
61 struct tc_action_ops *next;
62 char kind[IFNAMSIZ];
63 __u32 type; /* TBD to match kind */
64 __u32 capab; /* capabilities includes 4 bit version */
65 struct module *owner;
66 int (*act)(struct sk_buff **, struct tc_action *);
67 int (*get_stats)(struct sk_buff *, struct tc_action *);
68 int (*dump)(struct sk_buff *, struct tc_action *,int , int);
69 int (*cleanup)(struct tc_action *, int bind);
70 int (*lookup)(struct tc_action *, u32 );
71 int (*init)(struct rtattr *,struct rtattr *,struct tc_action *, int , int );
72 int (*walk)(struct sk_buff *, struct netlink_callback *, int , struct tc_action *);
73};
74
75extern int tcf_register_action(struct tc_action_ops *a);
76extern int tcf_unregister_action(struct tc_action_ops *a);
77extern void tcf_action_destroy(struct tc_action *a, int bind);
78extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res);
79extern struct tc_action *tcf_action_init(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err);
80extern struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err);
81extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);
82extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
83extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
84extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int);
85#endif /* CONFIG_NET_CLS_ACT */
86
87extern int tcf_police(struct sk_buff *skb, struct tcf_police *p);
88extern void tcf_police_destroy(struct tcf_police *p);
89extern struct tcf_police * tcf_police_locate(struct rtattr *rta, struct rtattr *est);
90extern int tcf_police_dump(struct sk_buff *skb, struct tcf_police *p);
91extern int tcf_police_dump_stats(struct sk_buff *skb, struct tcf_police *p);
92
93static inline int
94tcf_police_release(struct tcf_police *p, int bind)
95{
96 int ret = 0;
97#ifdef CONFIG_NET_CLS_ACT
98 if (p) {
99 if (bind) {
100 p->bindcnt--;
101 }
102 p->refcnt--;
103 if (p->refcnt <= 0 && !p->bindcnt) {
104 tcf_police_destroy(p);
105 ret = 1;
106 }
107 }
108#else
109 if (p && --p->refcnt == 0)
110 tcf_police_destroy(p);
111
112#endif /* CONFIG_NET_CLS_ACT */
113 return ret;
114}
115
116#endif
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
new file mode 100644
index 000000000000..7af9a13cb9be
--- /dev/null
+++ b/include/net/addrconf.h
@@ -0,0 +1,240 @@
1#ifndef _ADDRCONF_H
2#define _ADDRCONF_H
3
4#define RETRANS_TIMER HZ
5
6#define MAX_RTR_SOLICITATIONS 3
7#define RTR_SOLICITATION_INTERVAL (4*HZ)
8
9#define MIN_VALID_LIFETIME (2*3600) /* 2 hours */
10
11#define TEMP_VALID_LIFETIME (7*86400)
12#define TEMP_PREFERRED_LIFETIME (86400)
13#define REGEN_MAX_RETRY (5)
14#define MAX_DESYNC_FACTOR (600)
15
16#define ADDR_CHECK_FREQUENCY (120*HZ)
17
18#define IPV6_MAX_ADDRESSES 16
19
20struct prefix_info {
21 __u8 type;
22 __u8 length;
23 __u8 prefix_len;
24
25#if defined(__BIG_ENDIAN_BITFIELD)
26 __u8 onlink : 1,
27 autoconf : 1,
28 reserved : 6;
29#elif defined(__LITTLE_ENDIAN_BITFIELD)
30 __u8 reserved : 6,
31 autoconf : 1,
32 onlink : 1;
33#else
34#error "Please fix <asm/byteorder.h>"
35#endif
36 __u32 valid;
37 __u32 prefered;
38 __u32 reserved2;
39
40 struct in6_addr prefix;
41};
42
43
44#ifdef __KERNEL__
45
46#include <linux/in6.h>
47#include <linux/netdevice.h>
48#include <net/if_inet6.h>
49
50#define IN6_ADDR_HSIZE 16
51
52extern int addrconf_init(void);
53extern void addrconf_cleanup(void);
54
55extern int addrconf_add_ifaddr(void __user *arg);
56extern int addrconf_del_ifaddr(void __user *arg);
57extern int addrconf_set_dstaddr(void __user *arg);
58
59extern int ipv6_chk_addr(struct in6_addr *addr,
60 struct net_device *dev,
61 int strict);
62extern struct inet6_ifaddr * ipv6_get_ifaddr(struct in6_addr *addr,
63 struct net_device *dev,
64 int strict);
65extern int ipv6_get_saddr(struct dst_entry *dst,
66 struct in6_addr *daddr,
67 struct in6_addr *saddr);
68extern int ipv6_dev_get_saddr(struct net_device *dev,
69 struct in6_addr *daddr,
70 struct in6_addr *saddr);
71extern int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *);
72extern int ipv6_rcv_saddr_equal(const struct sock *sk,
73 const struct sock *sk2);
74extern void addrconf_join_solict(struct net_device *dev,
75 struct in6_addr *addr);
76extern void addrconf_leave_solict(struct inet6_dev *idev,
77 struct in6_addr *addr);
78
79/*
80 * multicast prototypes (mcast.c)
81 */
82extern int ipv6_sock_mc_join(struct sock *sk, int ifindex,
83 struct in6_addr *addr);
84extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
85 struct in6_addr *addr);
86extern void ipv6_sock_mc_close(struct sock *sk);
87extern int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
88 struct in6_addr *src_addr);
89
90extern int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr);
91extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, struct in6_addr *addr);
92extern int ipv6_dev_mc_dec(struct net_device *dev, struct in6_addr *addr);
93extern void ipv6_mc_up(struct inet6_dev *idev);
94extern void ipv6_mc_down(struct inet6_dev *idev);
95extern void ipv6_mc_init_dev(struct inet6_dev *idev);
96extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
97extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
98
99extern int ipv6_chk_mcast_addr(struct net_device *dev, struct in6_addr *group,
100 struct in6_addr *src_addr);
101extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr);
102
103extern void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len);
104
105extern int ipv6_get_hoplimit(struct net_device *dev);
106
107/*
108 * anycast prototypes (anycast.c)
109 */
110extern int ipv6_sock_ac_join(struct sock *sk,int ifindex,struct in6_addr *addr);
111extern int ipv6_sock_ac_drop(struct sock *sk,int ifindex,struct in6_addr *addr);
112extern void ipv6_sock_ac_close(struct sock *sk);
113extern int inet6_ac_check(struct sock *sk, struct in6_addr *addr, int ifindex);
114
115extern int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr);
116extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr);
117extern int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr);
118
119
120/* Device notifier */
121extern int register_inet6addr_notifier(struct notifier_block *nb);
122extern int unregister_inet6addr_notifier(struct notifier_block *nb);
123
124static inline struct inet6_dev *
125__in6_dev_get(struct net_device *dev)
126{
127 return (struct inet6_dev *)dev->ip6_ptr;
128}
129
130extern rwlock_t addrconf_lock;
131
132static inline struct inet6_dev *
133in6_dev_get(struct net_device *dev)
134{
135 struct inet6_dev *idev = NULL;
136 read_lock(&addrconf_lock);
137 idev = dev->ip6_ptr;
138 if (idev)
139 atomic_inc(&idev->refcnt);
140 read_unlock(&addrconf_lock);
141 return idev;
142}
143
144extern void in6_dev_finish_destroy(struct inet6_dev *idev);
145
146static inline void
147in6_dev_put(struct inet6_dev *idev)
148{
149 if (atomic_dec_and_test(&idev->refcnt))
150 in6_dev_finish_destroy(idev);
151}
152
153#define __in6_dev_put(idev) atomic_dec(&(idev)->refcnt)
154#define in6_dev_hold(idev) atomic_inc(&(idev)->refcnt)
155
156
157extern void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
158
159static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
160{
161 if (atomic_dec_and_test(&ifp->refcnt))
162 inet6_ifa_finish_destroy(ifp);
163}
164
165#define __in6_ifa_put(ifp) atomic_dec(&(ifp)->refcnt)
166#define in6_ifa_hold(ifp) atomic_inc(&(ifp)->refcnt)
167
168
169extern void addrconf_forwarding_on(void);
170/*
171 * Hash function taken from net_alias.c
172 */
173
174static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr)
175{
176 __u32 word;
177
178 /*
179 * We perform the hash function over the last 64 bits of the address
180 * This will include the IEEE address token on links that support it.
181 */
182
183 word = addr->s6_addr32[2] ^ addr->s6_addr32[3];
184 word ^= (word >> 16);
185 word ^= (word >> 8);
186
187 return ((word ^ (word >> 4)) & 0x0f);
188}
189
190/*
191 * compute link-local solicited-node multicast address
192 */
193
194static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
195 struct in6_addr *solicited)
196{
197 ipv6_addr_set(solicited,
198 __constant_htonl(0xFF020000), 0,
199 __constant_htonl(0x1),
200 __constant_htonl(0xFF000000) | addr->s6_addr32[3]);
201}
202
203
204static inline void ipv6_addr_all_nodes(struct in6_addr *addr)
205{
206 ipv6_addr_set(addr,
207 __constant_htonl(0xFF020000), 0, 0,
208 __constant_htonl(0x1));
209}
210
211static inline void ipv6_addr_all_routers(struct in6_addr *addr)
212{
213 ipv6_addr_set(addr,
214 __constant_htonl(0xFF020000), 0, 0,
215 __constant_htonl(0x2));
216}
217
218static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
219{
220 return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000);
221}
222
223static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
224{
225 return (addr->s6_addr32[0] == htonl(0xff020000) &&
226 addr->s6_addr32[1] == 0 &&
227 addr->s6_addr32[2] == 0 &&
228 addr->s6_addr32[3] == htonl(0x00000001));
229}
230
231static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
232{
233 return (addr->s6_addr32[0] == htonl(0xff020000) &&
234 addr->s6_addr32[1] == 0 &&
235 addr->s6_addr32[2] == 0 &&
236 addr->s6_addr32[3] == htonl(0x00000002));
237}
238
239#endif
240#endif
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
new file mode 100644
index 000000000000..b60b3846b9d1
--- /dev/null
+++ b/include/net/af_unix.h
@@ -0,0 +1,78 @@
1#ifndef __LINUX_NET_AFUNIX_H
2#define __LINUX_NET_AFUNIX_H
3extern void unix_inflight(struct file *fp);
4extern void unix_notinflight(struct file *fp);
5extern void unix_gc(void);
6
7#define UNIX_HASH_SIZE 256
8
9extern struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
10extern rwlock_t unix_table_lock;
11
12extern atomic_t unix_tot_inflight;
13
14static inline struct sock *first_unix_socket(int *i)
15{
16 for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
17 if (!hlist_empty(&unix_socket_table[*i]))
18 return __sk_head(&unix_socket_table[*i]);
19 }
20 return NULL;
21}
22
23static inline struct sock *next_unix_socket(int *i, struct sock *s)
24{
25 struct sock *next = sk_next(s);
26 /* More in this chain? */
27 if (next)
28 return next;
29 /* Look for next non-empty chain. */
30 for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
31 if (!hlist_empty(&unix_socket_table[*i]))
32 return __sk_head(&unix_socket_table[*i]);
33 }
34 return NULL;
35}
36
37#define forall_unix_sockets(i, s) \
38 for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
39
40struct unix_address {
41 atomic_t refcnt;
42 int len;
43 unsigned hash;
44 struct sockaddr_un name[0];
45};
46
47struct unix_skb_parms {
48 struct ucred creds; /* Skb credentials */
49 struct scm_fp_list *fp; /* Passed files */
50};
51
52#define UNIXCB(skb) (*(struct unix_skb_parms*)&((skb)->cb))
53#define UNIXCREDS(skb) (&UNIXCB((skb)).creds)
54
55#define unix_state_rlock(s) read_lock(&unix_sk(s)->lock)
56#define unix_state_runlock(s) read_unlock(&unix_sk(s)->lock)
57#define unix_state_wlock(s) write_lock(&unix_sk(s)->lock)
58#define unix_state_wunlock(s) write_unlock(&unix_sk(s)->lock)
59
60#ifdef __KERNEL__
61/* The AF_UNIX socket */
62struct unix_sock {
63 /* WARNING: sk has to be the first member */
64 struct sock sk;
65 struct unix_address *addr;
66 struct dentry *dentry;
67 struct vfsmount *mnt;
68 struct semaphore readsem;
69 struct sock *peer;
70 struct sock *other;
71 struct sock *gc_tree;
72 atomic_t inflight;
73 rwlock_t lock;
74 wait_queue_head_t peer_wait;
75};
76#define unix_sk(__sk) ((struct unix_sock *)__sk)
77#endif
78#endif
diff --git a/include/net/ah.h b/include/net/ah.h
new file mode 100644
index 000000000000..ceff00afae09
--- /dev/null
+++ b/include/net/ah.h
@@ -0,0 +1,35 @@
1#ifndef _NET_AH_H
2#define _NET_AH_H
3
4#include <net/xfrm.h>
5
6/* This is the maximum truncated ICV length that we know of. */
7#define MAX_AH_AUTH_LEN 12
8
9struct ah_data
10{
11 u8 *key;
12 int key_len;
13 u8 *work_icv;
14 int icv_full_len;
15 int icv_trunc_len;
16
17 void (*icv)(struct ah_data*,
18 struct sk_buff *skb, u8 *icv);
19
20 struct crypto_tfm *tfm;
21};
22
23static inline void
24ah_hmac_digest(struct ah_data *ahp, struct sk_buff *skb, u8 *auth_data)
25{
26 struct crypto_tfm *tfm = ahp->tfm;
27
28 memset(auth_data, 0, ahp->icv_trunc_len);
29 crypto_hmac_init(tfm, ahp->key, &ahp->key_len);
30 skb_icv_walk(skb, tfm, 0, skb->len, crypto_hmac_update);
31 crypto_hmac_final(tfm, ahp->key, &ahp->key_len, ahp->work_icv);
32 memcpy(auth_data, ahp->work_icv, ahp->icv_trunc_len);
33}
34
35#endif
diff --git a/include/net/arp.h b/include/net/arp.h
new file mode 100644
index 000000000000..a1f09fad6a52
--- /dev/null
+++ b/include/net/arp.h
@@ -0,0 +1,32 @@
1/* linux/net/inet/arp.h */
2#ifndef _ARP_H
3#define _ARP_H
4
5#include <linux/if_arp.h>
6#include <net/neighbour.h>
7
8#define HAVE_ARP_CREATE
9
10extern struct neigh_table arp_tbl;
11
12extern void arp_init(void);
13extern int arp_rcv(struct sk_buff *skb, struct net_device *dev,
14 struct packet_type *pt);
15extern int arp_find(unsigned char *haddr, struct sk_buff *skb);
16extern int arp_ioctl(unsigned int cmd, void __user *arg);
17extern void arp_send(int type, int ptype, u32 dest_ip,
18 struct net_device *dev, u32 src_ip,
19 unsigned char *dest_hw, unsigned char *src_hw, unsigned char *th);
20extern int arp_bind_neighbour(struct dst_entry *dst);
21extern int arp_mc_map(u32 addr, u8 *haddr, struct net_device *dev, int dir);
22extern void arp_ifdown(struct net_device *dev);
23
24extern struct sk_buff *arp_create(int type, int ptype, u32 dest_ip,
25 struct net_device *dev, u32 src_ip,
26 unsigned char *dest_hw, unsigned char *src_hw,
27 unsigned char *target_hw);
28extern void arp_xmit(struct sk_buff *skb);
29
30extern struct neigh_ops arp_broken_ops;
31
32#endif /* _ARP_H */
diff --git a/include/net/atmclip.h b/include/net/atmclip.h
new file mode 100644
index 000000000000..47048b1d179a
--- /dev/null
+++ b/include/net/atmclip.h
@@ -0,0 +1,62 @@
1/* net/atm/atmarp.h - RFC1577 ATM ARP */
2
3/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
4
5
6#ifndef _ATMCLIP_H
7#define _ATMCLIP_H
8
9#include <linux/netdevice.h>
10#include <linux/skbuff.h>
11#include <linux/atm.h>
12#include <linux/atmdev.h>
13#include <linux/atmarp.h>
14#include <linux/spinlock.h>
15#include <net/neighbour.h>
16
17
18#define CLIP_VCC(vcc) ((struct clip_vcc *) ((vcc)->user_back))
19#define NEIGH2ENTRY(neigh) ((struct atmarp_entry *) (neigh)->primary_key)
20
21
22struct clip_vcc {
23 struct atm_vcc *vcc; /* VCC descriptor */
24 struct atmarp_entry *entry; /* ATMARP table entry, NULL if IP addr.
25 isn't known yet */
26 int xoff; /* 1 if send buffer is full */
27 unsigned char encap; /* 0: NULL, 1: LLC/SNAP */
28 unsigned long last_use; /* last send or receive operation */
29 unsigned long idle_timeout; /* keep open idle for so many jiffies*/
30 void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
31 /* keep old push fn for chaining */
32 void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb);
33 /* keep old pop fn for chaining */
34 struct clip_vcc *next; /* next VCC */
35};
36
37
38struct atmarp_entry {
39 u32 ip; /* IP address */
40 struct clip_vcc *vccs; /* active VCCs; NULL if resolution is
41 pending */
42 unsigned long expires; /* entry expiration time */
43 struct neighbour *neigh; /* neighbour back-pointer */
44};
45
46
47#define PRIV(dev) ((struct clip_priv *) netdev_priv(dev))
48
49
50struct clip_priv {
51 int number; /* for convenience ... */
52 spinlock_t xoff_lock; /* ensures that pop is atomic (SMP) */
53 struct net_device_stats stats;
54 struct net_device *next; /* next CLIP interface */
55};
56
57
58#ifdef __KERNEL__
59extern struct neigh_table *clip_tbl_hook;
60#endif
61
62#endif
diff --git a/include/net/ax25.h b/include/net/ax25.h
new file mode 100644
index 000000000000..fb95ecb6fe03
--- /dev/null
+++ b/include/net/ax25.h
@@ -0,0 +1,385 @@
1/*
2 * Declarations of AX.25 type objects.
3 *
4 * Alan Cox (GW4PTS) 10/11/93
5 */
6#ifndef _AX25_H
7#define _AX25_H
8
9#include <linux/config.h>
10#include <linux/ax25.h>
11#include <linux/spinlock.h>
12#include <linux/timer.h>
13#include <linux/list.h>
14#include <asm/atomic.h>
15
16#define AX25_T1CLAMPLO 1
17#define AX25_T1CLAMPHI (30 * HZ)
18
19#define AX25_BPQ_HEADER_LEN 16
20#define AX25_KISS_HEADER_LEN 1
21
22#define AX25_HEADER_LEN 17
23#define AX25_ADDR_LEN 7
24#define AX25_DIGI_HEADER_LEN (AX25_MAX_DIGIS * AX25_ADDR_LEN)
25#define AX25_MAX_HEADER_LEN (AX25_HEADER_LEN + AX25_DIGI_HEADER_LEN)
26
27/* AX.25 Protocol IDs */
28#define AX25_P_ROSE 0x01
29#define AX25_P_IP 0xCC
30#define AX25_P_ARP 0xCD
31#define AX25_P_TEXT 0xF0
32#define AX25_P_NETROM 0xCF
33#define AX25_P_SEGMENT 0x08
34
35/* AX.25 Segment control values */
36#define AX25_SEG_REM 0x7F
37#define AX25_SEG_FIRST 0x80
38
39#define AX25_CBIT 0x80 /* Command/Response bit */
40#define AX25_EBIT 0x01 /* HDLC Address Extension bit */
41#define AX25_HBIT 0x80 /* Has been repeated bit */
42
43#define AX25_SSSID_SPARE 0x60 /* Unused bits in SSID for standard AX.25 */
44#define AX25_ESSID_SPARE 0x20 /* Unused bits in SSID for extended AX.25 */
45#define AX25_DAMA_FLAG 0x20 /* Well, it is *NOT* unused! (dl1bke 951121 */
46
47#define AX25_COND_ACK_PENDING 0x01
48#define AX25_COND_REJECT 0x02
49#define AX25_COND_PEER_RX_BUSY 0x04
50#define AX25_COND_OWN_RX_BUSY 0x08
51#define AX25_COND_DAMA_MODE 0x10
52
53#ifndef _LINUX_NETDEVICE_H
54#include <linux/netdevice.h>
55#endif
56
57/* Upper sub-layer (LAPB) definitions */
58
59/* Control field templates */
60#define AX25_I 0x00 /* Information frames */
61#define AX25_S 0x01 /* Supervisory frames */
62#define AX25_RR 0x01 /* Receiver ready */
63#define AX25_RNR 0x05 /* Receiver not ready */
64#define AX25_REJ 0x09 /* Reject */
65#define AX25_U 0x03 /* Unnumbered frames */
66#define AX25_SABM 0x2f /* Set Asynchronous Balanced Mode */
67#define AX25_SABME 0x6f /* Set Asynchronous Balanced Mode Extended */
68#define AX25_DISC 0x43 /* Disconnect */
69#define AX25_DM 0x0f /* Disconnected mode */
70#define AX25_UA 0x63 /* Unnumbered acknowledge */
71#define AX25_FRMR 0x87 /* Frame reject */
72#define AX25_UI 0x03 /* Unnumbered information */
73#define AX25_XID 0xaf /* Exchange information */
74#define AX25_TEST 0xe3 /* Test */
75
76#define AX25_PF 0x10 /* Poll/final bit for standard AX.25 */
77#define AX25_EPF 0x01 /* Poll/final bit for extended AX.25 */
78
79#define AX25_ILLEGAL 0x100 /* Impossible to be a real frame type */
80
81#define AX25_POLLOFF 0
82#define AX25_POLLON 1
83
84/* AX25 L2 C-bit */
85#define AX25_COMMAND 1
86#define AX25_RESPONSE 2
87
88/* Define Link State constants. */
89
90enum {
91 AX25_STATE_0,
92 AX25_STATE_1,
93 AX25_STATE_2,
94 AX25_STATE_3,
95 AX25_STATE_4
96};
97
98#define AX25_MODULUS 8 /* Standard AX.25 modulus */
99#define AX25_EMODULUS 128 /* Extended AX.25 modulus */
100
101enum {
102 AX25_PROTO_STD_SIMPLEX,
103 AX25_PROTO_STD_DUPLEX,
104 AX25_PROTO_DAMA_SLAVE,
105 AX25_PROTO_DAMA_MASTER
106};
107
108enum {
109 AX25_VALUES_IPDEFMODE, /* 0=DG 1=VC */
110 AX25_VALUES_AXDEFMODE, /* 0=Normal 1=Extended Seq Nos */
111 AX25_VALUES_BACKOFF, /* 0=None 1=Linear 2=Exponential */
112 AX25_VALUES_CONMODE, /* Allow connected modes - 0=No 1=no "PID text" 2=all PIDs */
113 AX25_VALUES_WINDOW, /* Default window size for standard AX.25 */
114 AX25_VALUES_EWINDOW, /* Default window size for extended AX.25 */
115 AX25_VALUES_T1, /* Default T1 timeout value */
116 AX25_VALUES_T2, /* Default T2 timeout value */
117 AX25_VALUES_T3, /* Default T3 timeout value */
118 AX25_VALUES_IDLE, /* Connected mode idle timer */
119 AX25_VALUES_N2, /* Default N2 value */
120 AX25_VALUES_PACLEN, /* AX.25 MTU */
121 AX25_VALUES_PROTOCOL, /* Std AX.25, DAMA Slave, DAMA Master */
122 AX25_VALUES_DS_TIMEOUT, /* DAMA Slave timeout */
123 AX25_MAX_VALUES /* THIS MUST REMAIN THE LAST ENTRY OF THIS LIST */
124};
125
126#define AX25_DEF_IPDEFMODE 0 /* Datagram */
127#define AX25_DEF_AXDEFMODE 0 /* Normal */
128#define AX25_DEF_BACKOFF 1 /* Linear backoff */
129#define AX25_DEF_CONMODE 2 /* Connected mode allowed */
130#define AX25_DEF_WINDOW 2 /* Window=2 */
131#define AX25_DEF_EWINDOW 32 /* Module-128 Window=32 */
132#define AX25_DEF_T1 (10 * HZ) /* T1=10s */
133#define AX25_DEF_T2 (3 * HZ) /* T2=3s */
134#define AX25_DEF_T3 (300 * HZ) /* T3=300s */
135#define AX25_DEF_N2 10 /* N2=10 */
136#define AX25_DEF_IDLE (0 * 60 * HZ) /* Idle=None */
137#define AX25_DEF_PACLEN 256 /* Paclen=256 */
138#define AX25_DEF_PROTOCOL AX25_PROTO_STD_SIMPLEX /* Standard AX.25 */
139#define AX25_DEF_DS_TIMEOUT (3 * 60 * HZ) /* DAMA timeout 3 minutes */
140
141typedef struct ax25_uid_assoc {
142 struct ax25_uid_assoc *next;
143 uid_t uid;
144 ax25_address call;
145} ax25_uid_assoc;
146
147typedef struct {
148 ax25_address calls[AX25_MAX_DIGIS];
149 unsigned char repeated[AX25_MAX_DIGIS];
150 unsigned char ndigi;
151 char lastrepeat;
152} ax25_digi;
153
154typedef struct ax25_route {
155 struct ax25_route *next;
156 atomic_t ref;
157 ax25_address callsign;
158 struct net_device *dev;
159 ax25_digi *digipeat;
160 char ip_mode;
161 struct timer_list timer;
162} ax25_route;
163
164typedef struct {
165 char slave; /* slave_mode? */
166 struct timer_list slave_timer; /* timeout timer */
167 unsigned short slave_timeout; /* when? */
168} ax25_dama_info;
169
170struct ctl_table;
171
172typedef struct ax25_dev {
173 struct ax25_dev *next;
174 struct net_device *dev;
175 struct net_device *forward;
176 struct ctl_table *systable;
177 int values[AX25_MAX_VALUES];
178#if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER)
179 ax25_dama_info dama;
180#endif
181} ax25_dev;
182
183typedef struct ax25_cb {
184 struct hlist_node ax25_node;
185 ax25_address source_addr, dest_addr;
186 ax25_digi *digipeat;
187 ax25_dev *ax25_dev;
188 unsigned char iamdigi;
189 unsigned char state, modulus, pidincl;
190 unsigned short vs, vr, va;
191 unsigned char condition, backoff;
192 unsigned char n2, n2count;
193 struct timer_list t1timer, t2timer, t3timer, idletimer;
194 unsigned long t1, t2, t3, idle, rtt;
195 unsigned short paclen, fragno, fraglen;
196 struct sk_buff_head write_queue;
197 struct sk_buff_head reseq_queue;
198 struct sk_buff_head ack_queue;
199 struct sk_buff_head frag_queue;
200 unsigned char window;
201 struct timer_list timer, dtimer;
202 struct sock *sk; /* Backlink to socket */
203 atomic_t refcount;
204} ax25_cb;
205
206#define ax25_sk(__sk) ((ax25_cb *)(__sk)->sk_protinfo)
207
208#define ax25_for_each(__ax25, node, list) \
209 hlist_for_each_entry(__ax25, node, list, ax25_node)
210
211#define ax25_cb_hold(__ax25) \
212 atomic_inc(&((__ax25)->refcount))
213
214static __inline__ void ax25_cb_put(ax25_cb *ax25)
215{
216 if (atomic_dec_and_test(&ax25->refcount)) {
217 if (ax25->digipeat)
218 kfree(ax25->digipeat);
219 kfree(ax25);
220 }
221}
222
223/* af_ax25.c */
224extern struct hlist_head ax25_list;
225extern spinlock_t ax25_list_lock;
226extern void ax25_cb_add(ax25_cb *);
227struct sock *ax25_find_listener(ax25_address *, int, struct net_device *, int);
228struct sock *ax25_get_socket(ax25_address *, ax25_address *, int);
229extern ax25_cb *ax25_find_cb(ax25_address *, ax25_address *, ax25_digi *, struct net_device *);
230extern void ax25_send_to_raw(ax25_address *, struct sk_buff *, int);
231extern void ax25_destroy_socket(ax25_cb *);
232extern ax25_cb *ax25_create_cb(void);
233extern void ax25_fillin_cb(ax25_cb *, ax25_dev *);
234extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
235
236/* ax25_addr.c */
237extern ax25_address null_ax25_address;
238extern char *ax2asc(ax25_address *);
239extern ax25_address *asc2ax(char *);
240extern int ax25cmp(ax25_address *, ax25_address *);
241extern int ax25digicmp(ax25_digi *, ax25_digi *);
242extern unsigned char *ax25_addr_parse(unsigned char *, int, ax25_address *, ax25_address *, ax25_digi *, int *, int *);
243extern int ax25_addr_build(unsigned char *, ax25_address *, ax25_address *, ax25_digi *, int, int);
244extern int ax25_addr_size(ax25_digi *);
245extern void ax25_digi_invert(ax25_digi *, ax25_digi *);
246
247/* ax25_dev.c */
248extern ax25_dev *ax25_dev_list;
249extern spinlock_t ax25_dev_lock;
250
251static inline ax25_dev *ax25_dev_ax25dev(struct net_device *dev)
252{
253 return dev->ax25_ptr;
254}
255
256extern ax25_dev *ax25_addr_ax25dev(ax25_address *);
257extern void ax25_dev_device_up(struct net_device *);
258extern void ax25_dev_device_down(struct net_device *);
259extern int ax25_fwd_ioctl(unsigned int, struct ax25_fwd_struct *);
260extern struct net_device *ax25_fwd_dev(struct net_device *);
261extern void ax25_dev_free(void);
262
263/* ax25_ds_in.c */
264extern int ax25_ds_frame_in(ax25_cb *, struct sk_buff *, int);
265
266/* ax25_ds_subr.c */
267extern void ax25_ds_nr_error_recovery(ax25_cb *);
268extern void ax25_ds_enquiry_response(ax25_cb *);
269extern void ax25_ds_establish_data_link(ax25_cb *);
270extern void ax25_dev_dama_off(ax25_dev *);
271extern void ax25_dama_on(ax25_cb *);
272extern void ax25_dama_off(ax25_cb *);
273
274/* ax25_ds_timer.c */
275extern void ax25_ds_set_timer(ax25_dev *);
276extern void ax25_ds_del_timer(ax25_dev *);
277extern void ax25_ds_timer(ax25_cb *);
278extern void ax25_ds_t1_timeout(ax25_cb *);
279extern void ax25_ds_heartbeat_expiry(ax25_cb *);
280extern void ax25_ds_t3timer_expiry(ax25_cb *);
281extern void ax25_ds_idletimer_expiry(ax25_cb *);
282
283/* ax25_iface.c */
284extern int ax25_protocol_register(unsigned int, int (*)(struct sk_buff *, ax25_cb *));
285extern void ax25_protocol_release(unsigned int);
286extern int ax25_linkfail_register(void (*)(ax25_cb *, int));
287extern void ax25_linkfail_release(void (*)(ax25_cb *, int));
288extern int ax25_listen_register(ax25_address *, struct net_device *);
289extern void ax25_listen_release(ax25_address *, struct net_device *);
290extern int (*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *);
291extern int ax25_listen_mine(ax25_address *, struct net_device *);
292extern void ax25_link_failed(ax25_cb *, int);
293extern int ax25_protocol_is_registered(unsigned int);
294
295/* ax25_in.c */
296extern int ax25_rx_iframe(ax25_cb *, struct sk_buff *);
297extern int ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *);
298
299/* ax25_ip.c */
300extern int ax25_encapsulate(struct sk_buff *, struct net_device *, unsigned short, void *, void *, unsigned int);
301extern int ax25_rebuild_header(struct sk_buff *);
302
303/* ax25_out.c */
304extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, ax25_digi *, struct net_device *);
305extern void ax25_output(ax25_cb *, int, struct sk_buff *);
306extern void ax25_kick(ax25_cb *);
307extern void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int);
308extern void ax25_queue_xmit(struct sk_buff *);
309extern int ax25_check_iframes_acked(ax25_cb *, unsigned short);
310
311/* ax25_route.c */
312extern void ax25_rt_device_down(struct net_device *);
313extern int ax25_rt_ioctl(unsigned int, void __user *);
314extern struct file_operations ax25_route_fops;
315extern int ax25_rt_autobind(ax25_cb *, ax25_address *);
316extern ax25_route *ax25_rt_find_route(ax25_route *, ax25_address *,
317 struct net_device *);
318extern struct sk_buff *ax25_rt_build_path(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *);
319extern void ax25_rt_free(void);
320
321static inline void ax25_put_route(ax25_route *ax25_rt)
322{
323 atomic_dec(&ax25_rt->ref);
324}
325
326/* ax25_std_in.c */
327extern int ax25_std_frame_in(ax25_cb *, struct sk_buff *, int);
328
329/* ax25_std_subr.c */
330extern void ax25_std_nr_error_recovery(ax25_cb *);
331extern void ax25_std_establish_data_link(ax25_cb *);
332extern void ax25_std_transmit_enquiry(ax25_cb *);
333extern void ax25_std_enquiry_response(ax25_cb *);
334extern void ax25_std_timeout_response(ax25_cb *);
335
336/* ax25_std_timer.c */
337extern void ax25_std_heartbeat_expiry(ax25_cb *);
338extern void ax25_std_t1timer_expiry(ax25_cb *);
339extern void ax25_std_t2timer_expiry(ax25_cb *);
340extern void ax25_std_t3timer_expiry(ax25_cb *);
341extern void ax25_std_idletimer_expiry(ax25_cb *);
342
343/* ax25_subr.c */
344extern void ax25_clear_queues(ax25_cb *);
345extern void ax25_frames_acked(ax25_cb *, unsigned short);
346extern void ax25_requeue_frames(ax25_cb *);
347extern int ax25_validate_nr(ax25_cb *, unsigned short);
348extern int ax25_decode(ax25_cb *, struct sk_buff *, int *, int *, int *);
349extern void ax25_send_control(ax25_cb *, int, int, int);
350extern void ax25_return_dm(struct net_device *, ax25_address *, ax25_address *, ax25_digi *);
351extern void ax25_calculate_t1(ax25_cb *);
352extern void ax25_calculate_rtt(ax25_cb *);
353extern void ax25_disconnect(ax25_cb *, int);
354
355/* ax25_timer.c */
356extern void ax25_start_heartbeat(ax25_cb *);
357extern void ax25_start_t1timer(ax25_cb *);
358extern void ax25_start_t2timer(ax25_cb *);
359extern void ax25_start_t3timer(ax25_cb *);
360extern void ax25_start_idletimer(ax25_cb *);
361extern void ax25_stop_heartbeat(ax25_cb *);
362extern void ax25_stop_t1timer(ax25_cb *);
363extern void ax25_stop_t2timer(ax25_cb *);
364extern void ax25_stop_t3timer(ax25_cb *);
365extern void ax25_stop_idletimer(ax25_cb *);
366extern int ax25_t1timer_running(ax25_cb *);
367extern unsigned long ax25_display_timer(struct timer_list *);
368
369/* ax25_uid.c */
370extern int ax25_uid_policy;
371extern ax25_address *ax25_findbyuid(uid_t);
372extern int ax25_uid_ioctl(int, struct sockaddr_ax25 *);
373extern struct file_operations ax25_uid_fops;
374extern void ax25_uid_free(void);
375
376/* sysctl_net_ax25.c */
377#ifdef CONFIG_SYSCTL
378extern void ax25_register_sysctl(void);
379extern void ax25_unregister_sysctl(void);
380#else
381static inline void ax25_register_sysctl(void) {};
382static inline void ax25_unregister_sysctl(void) {};
383#endif /* CONFIG_SYSCTL */
384
385#endif
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
new file mode 100644
index 000000000000..42a84c53678b
--- /dev/null
+++ b/include/net/bluetooth/bluetooth.h
@@ -0,0 +1,181 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __BLUETOOTH_H
26#define __BLUETOOTH_H
27
28#include <asm/types.h>
29#include <asm/byteorder.h>
30#include <linux/list.h>
31#include <linux/poll.h>
32#include <net/sock.h>
33
34#ifndef AF_BLUETOOTH
35#define AF_BLUETOOTH 31
36#define PF_BLUETOOTH AF_BLUETOOTH
37#endif
38
39/* Reserv for core and drivers use */
40#define BT_SKB_RESERVE 8
41
42#define BTPROTO_L2CAP 0
43#define BTPROTO_HCI 1
44#define BTPROTO_SCO 2
45#define BTPROTO_RFCOMM 3
46#define BTPROTO_BNEP 4
47#define BTPROTO_CMTP 5
48#define BTPROTO_HIDP 6
49#define BTPROTO_AVDTP 7
50
51#define SOL_HCI 0
52#define SOL_L2CAP 6
53#define SOL_SCO 17
54#define SOL_RFCOMM 18
55
56#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
57#define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __FUNCTION__ , ## arg)
58#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __FUNCTION__ , ## arg)
59
60#ifdef HCI_DATA_DUMP
61#define BT_DMP(buf, len) bt_dump(__FUNCTION__, buf, len)
62#else
63#define BT_DMP(D...)
64#endif
65
66extern struct proc_dir_entry *proc_bt;
67
68/* Connection and socket states */
69enum {
70 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
71 BT_OPEN,
72 BT_BOUND,
73 BT_LISTEN,
74 BT_CONNECT,
75 BT_CONNECT2,
76 BT_CONFIG,
77 BT_DISCONN,
78 BT_CLOSED
79};
80
81/* Endianness conversions */
82#define htobs(a) __cpu_to_le16(a)
83#define htobl(a) __cpu_to_le32(a)
84#define btohs(a) __le16_to_cpu(a)
85#define btohl(a) __le32_to_cpu(a)
86
87/* BD Address */
88typedef struct {
89 __u8 b[6];
90} __attribute__((packed)) bdaddr_t;
91
92#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
93#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
94
95/* Copy, swap, convert BD Address */
96static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
97{
98 return memcmp(ba1, ba2, sizeof(bdaddr_t));
99}
100static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
101{
102 memcpy(dst, src, sizeof(bdaddr_t));
103}
104
105void baswap(bdaddr_t *dst, bdaddr_t *src);
106char *batostr(bdaddr_t *ba);
107bdaddr_t *strtoba(char *str);
108
109/* Common socket structures and functions */
110
111#define bt_sk(__sk) ((struct bt_sock *) __sk)
112
113struct bt_sock {
114 struct sock sk;
115 bdaddr_t src;
116 bdaddr_t dst;
117 struct list_head accept_q;
118 struct sock *parent;
119};
120
121struct bt_sock_list {
122 struct hlist_head head;
123 rwlock_t lock;
124};
125
126int bt_sock_register(int proto, struct net_proto_family *ops);
127int bt_sock_unregister(int proto);
128void bt_sock_link(struct bt_sock_list *l, struct sock *s);
129void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
130int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags);
131uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
132int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
133
134void bt_accept_enqueue(struct sock *parent, struct sock *sk);
135void bt_accept_unlink(struct sock *sk);
136struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
137
138/* Skb helpers */
139struct bt_skb_cb {
140 int incoming;
141};
142#define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb))
143
144static inline struct sk_buff *bt_skb_alloc(unsigned int len, int how)
145{
146 struct sk_buff *skb;
147
148 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
149 skb_reserve(skb, BT_SKB_RESERVE);
150 bt_cb(skb)->incoming = 0;
151 }
152 return skb;
153}
154
155static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len,
156 int nb, int *err)
157{
158 struct sk_buff *skb;
159
160 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
161 skb_reserve(skb, BT_SKB_RESERVE);
162 bt_cb(skb)->incoming = 0;
163 }
164
165 return skb;
166}
167
168static inline int skb_frags_no(struct sk_buff *skb)
169{
170 register struct sk_buff *frag = skb_shinfo(skb)->frag_list;
171 register int n = 1;
172
173 for (; frag; frag=frag->next, n++);
174 return n;
175}
176
177void bt_dump(char *pref, __u8 *buf, int count);
178
179int bt_err(__u16 code);
180
181#endif /* __BLUETOOTH_H */
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
new file mode 100644
index 000000000000..6f0706f4af68
--- /dev/null
+++ b/include/net/bluetooth/hci.h
@@ -0,0 +1,755 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __HCI_H
26#define __HCI_H
27
28#define HCI_MAX_ACL_SIZE 1024
29#define HCI_MAX_SCO_SIZE 255
30#define HCI_MAX_EVENT_SIZE 260
31#define HCI_MAX_FRAME_SIZE (HCI_MAX_ACL_SIZE + 4)
32
33/* HCI dev events */
34#define HCI_DEV_REG 1
35#define HCI_DEV_UNREG 2
36#define HCI_DEV_UP 3
37#define HCI_DEV_DOWN 4
38#define HCI_DEV_SUSPEND 5
39#define HCI_DEV_RESUME 6
40
41/* HCI notify events */
42#define HCI_NOTIFY_CONN_ADD 1
43#define HCI_NOTIFY_CONN_DEL 2
44#define HCI_NOTIFY_VOICE_SETTING 3
45
46/* HCI device types */
47#define HCI_VHCI 0
48#define HCI_USB 1
49#define HCI_PCCARD 2
50#define HCI_UART 3
51#define HCI_RS232 4
52#define HCI_PCI 5
53
54/* HCI device quirks */
55enum {
56 HCI_QUIRK_RESET_ON_INIT,
57 HCI_QUIRK_RAW_DEVICE
58};
59
60/* HCI device flags */
61enum {
62 HCI_UP,
63 HCI_INIT,
64 HCI_RUNNING,
65
66 HCI_PSCAN,
67 HCI_ISCAN,
68 HCI_AUTH,
69 HCI_ENCRYPT,
70 HCI_INQUIRY,
71
72 HCI_RAW,
73
74 HCI_SECMGR
75};
76
77/* HCI ioctl defines */
78#define HCIDEVUP _IOW('H', 201, int)
79#define HCIDEVDOWN _IOW('H', 202, int)
80#define HCIDEVRESET _IOW('H', 203, int)
81#define HCIDEVRESTAT _IOW('H', 204, int)
82
83#define HCIGETDEVLIST _IOR('H', 210, int)
84#define HCIGETDEVINFO _IOR('H', 211, int)
85#define HCIGETCONNLIST _IOR('H', 212, int)
86#define HCIGETCONNINFO _IOR('H', 213, int)
87
88#define HCISETRAW _IOW('H', 220, int)
89#define HCISETSCAN _IOW('H', 221, int)
90#define HCISETAUTH _IOW('H', 222, int)
91#define HCISETENCRYPT _IOW('H', 223, int)
92#define HCISETPTYPE _IOW('H', 224, int)
93#define HCISETLINKPOL _IOW('H', 225, int)
94#define HCISETLINKMODE _IOW('H', 226, int)
95#define HCISETACLMTU _IOW('H', 227, int)
96#define HCISETSCOMTU _IOW('H', 228, int)
97
98#define HCISETSECMGR _IOW('H', 230, int)
99
100#define HCIINQUIRY _IOR('H', 240, int)
101
102/* HCI timeouts */
103#define HCI_CONN_TIMEOUT (HZ * 40)
104#define HCI_DISCONN_TIMEOUT (HZ * 2)
105#define HCI_CONN_IDLE_TIMEOUT (HZ * 60)
106
107/* HCI Packet types */
108#define HCI_COMMAND_PKT 0x01
109#define HCI_ACLDATA_PKT 0x02
110#define HCI_SCODATA_PKT 0x03
111#define HCI_EVENT_PKT 0x04
112#define HCI_VENDOR_PKT 0xff
113
114/* HCI Packet types */
115#define HCI_DM1 0x0008
116#define HCI_DM3 0x0400
117#define HCI_DM5 0x4000
118#define HCI_DH1 0x0010
119#define HCI_DH3 0x0800
120#define HCI_DH5 0x8000
121
122#define HCI_HV1 0x0020
123#define HCI_HV2 0x0040
124#define HCI_HV3 0x0080
125
126#define SCO_PTYPE_MASK (HCI_HV1 | HCI_HV2 | HCI_HV3)
127#define ACL_PTYPE_MASK (~SCO_PTYPE_MASK)
128
129/* ACL flags */
130#define ACL_CONT 0x01
131#define ACL_START 0x02
132#define ACL_ACTIVE_BCAST 0x04
133#define ACL_PICO_BCAST 0x08
134
135/* Baseband links */
136#define SCO_LINK 0x00
137#define ACL_LINK 0x01
138
139/* LMP features */
140#define LMP_3SLOT 0x01
141#define LMP_5SLOT 0x02
142#define LMP_ENCRYPT 0x04
143#define LMP_SOFFSET 0x08
144#define LMP_TACCURACY 0x10
145#define LMP_RSWITCH 0x20
146#define LMP_HOLD 0x40
147#define LMP_SNIF 0x80
148
149#define LMP_PARK 0x01
150#define LMP_RSSI 0x02
151#define LMP_QUALITY 0x04
152#define LMP_SCO 0x08
153#define LMP_HV2 0x10
154#define LMP_HV3 0x20
155#define LMP_ULAW 0x40
156#define LMP_ALAW 0x80
157
158#define LMP_CVSD 0x01
159#define LMP_PSCHEME 0x02
160#define LMP_PCONTROL 0x04
161
162/* Link policies */
163#define HCI_LP_RSWITCH 0x0001
164#define HCI_LP_HOLD 0x0002
165#define HCI_LP_SNIFF 0x0004
166#define HCI_LP_PARK 0x0008
167
168/* Link mode */
169#define HCI_LM_ACCEPT 0x8000
170#define HCI_LM_MASTER 0x0001
171#define HCI_LM_AUTH 0x0002
172#define HCI_LM_ENCRYPT 0x0004
173#define HCI_LM_TRUSTED 0x0008
174#define HCI_LM_RELIABLE 0x0010
175#define HCI_LM_SECURE 0x0020
176
177/* ----- HCI Commands ---- */
178/* OGF & OCF values */
179
180/* Informational Parameters */
181#define OGF_INFO_PARAM 0x04
182
183#define OCF_READ_LOCAL_VERSION 0x0001
184struct hci_rp_read_loc_version {
185 __u8 status;
186 __u8 hci_ver;
187 __u16 hci_rev;
188 __u8 lmp_ver;
189 __u16 manufacturer;
190 __u16 lmp_subver;
191} __attribute__ ((packed));
192
193#define OCF_READ_LOCAL_FEATURES 0x0003
194struct hci_rp_read_loc_features {
195 __u8 status;
196 __u8 features[8];
197} __attribute__ ((packed));
198
199#define OCF_READ_BUFFER_SIZE 0x0005
200struct hci_rp_read_buffer_size {
201 __u8 status;
202 __u16 acl_mtu;
203 __u8 sco_mtu;
204 __u16 acl_max_pkt;
205 __u16 sco_max_pkt;
206} __attribute__ ((packed));
207
208#define OCF_READ_BD_ADDR 0x0009
209struct hci_rp_read_bd_addr {
210 __u8 status;
211 bdaddr_t bdaddr;
212} __attribute__ ((packed));
213
214/* Host Controller and Baseband */
215#define OGF_HOST_CTL 0x03
216#define OCF_RESET 0x0003
217#define OCF_READ_AUTH_ENABLE 0x001F
218#define OCF_WRITE_AUTH_ENABLE 0x0020
219 #define AUTH_DISABLED 0x00
220 #define AUTH_ENABLED 0x01
221
222#define OCF_READ_ENCRYPT_MODE 0x0021
223#define OCF_WRITE_ENCRYPT_MODE 0x0022
224 #define ENCRYPT_DISABLED 0x00
225 #define ENCRYPT_P2P 0x01
226 #define ENCRYPT_BOTH 0x02
227
228#define OCF_WRITE_CA_TIMEOUT 0x0016
229#define OCF_WRITE_PG_TIMEOUT 0x0018
230
231#define OCF_WRITE_SCAN_ENABLE 0x001A
232 #define SCAN_DISABLED 0x00
233 #define SCAN_INQUIRY 0x01
234 #define SCAN_PAGE 0x02
235
236#define OCF_SET_EVENT_FLT 0x0005
237struct hci_cp_set_event_flt {
238 __u8 flt_type;
239 __u8 cond_type;
240 __u8 condition[0];
241} __attribute__ ((packed));
242
243/* Filter types */
244#define HCI_FLT_CLEAR_ALL 0x00
245#define HCI_FLT_INQ_RESULT 0x01
246#define HCI_FLT_CONN_SETUP 0x02
247
248/* CONN_SETUP Condition types */
249#define HCI_CONN_SETUP_ALLOW_ALL 0x00
250#define HCI_CONN_SETUP_ALLOW_CLASS 0x01
251#define HCI_CONN_SETUP_ALLOW_BDADDR 0x02
252
253/* CONN_SETUP Conditions */
254#define HCI_CONN_SETUP_AUTO_OFF 0x01
255#define HCI_CONN_SETUP_AUTO_ON 0x02
256
257#define OCF_READ_CLASS_OF_DEV 0x0023
258struct hci_rp_read_dev_class {
259 __u8 status;
260 __u8 dev_class[3];
261} __attribute__ ((packed));
262
263#define OCF_WRITE_CLASS_OF_DEV 0x0024
264struct hci_cp_write_dev_class {
265 __u8 dev_class[3];
266} __attribute__ ((packed));
267
268#define OCF_READ_VOICE_SETTING 0x0025
269struct hci_rp_read_voice_setting {
270 __u8 status;
271 __u16 voice_setting;
272} __attribute__ ((packed));
273
274#define OCF_WRITE_VOICE_SETTING 0x0026
275struct hci_cp_write_voice_setting {
276 __u16 voice_setting;
277} __attribute__ ((packed));
278
279#define OCF_HOST_BUFFER_SIZE 0x0033
280struct hci_cp_host_buffer_size {
281 __u16 acl_mtu;
282 __u8 sco_mtu;
283 __u16 acl_max_pkt;
284 __u16 sco_max_pkt;
285} __attribute__ ((packed));
286
287/* Link Control */
288#define OGF_LINK_CTL 0x01
289#define OCF_CREATE_CONN 0x0005
290struct hci_cp_create_conn {
291 bdaddr_t bdaddr;
292 __u16 pkt_type;
293 __u8 pscan_rep_mode;
294 __u8 pscan_mode;
295 __u16 clock_offset;
296 __u8 role_switch;
297} __attribute__ ((packed));
298
299#define OCF_ACCEPT_CONN_REQ 0x0009
300struct hci_cp_accept_conn_req {
301 bdaddr_t bdaddr;
302 __u8 role;
303} __attribute__ ((packed));
304
305#define OCF_REJECT_CONN_REQ 0x000a
306struct hci_cp_reject_conn_req {
307 bdaddr_t bdaddr;
308 __u8 reason;
309} __attribute__ ((packed));
310
311#define OCF_DISCONNECT 0x0006
312struct hci_cp_disconnect {
313 __u16 handle;
314 __u8 reason;
315} __attribute__ ((packed));
316
317#define OCF_ADD_SCO 0x0007
318struct hci_cp_add_sco {
319 __u16 handle;
320 __u16 pkt_type;
321} __attribute__ ((packed));
322
323#define OCF_INQUIRY 0x0001
324struct hci_cp_inquiry {
325 __u8 lap[3];
326 __u8 length;
327 __u8 num_rsp;
328} __attribute__ ((packed));
329
330#define OCF_INQUIRY_CANCEL 0x0002
331
332#define OCF_LINK_KEY_REPLY 0x000B
333struct hci_cp_link_key_reply {
334 bdaddr_t bdaddr;
335 __u8 link_key[16];
336} __attribute__ ((packed));
337
338#define OCF_LINK_KEY_NEG_REPLY 0x000C
339struct hci_cp_link_key_neg_reply {
340 bdaddr_t bdaddr;
341} __attribute__ ((packed));
342
343#define OCF_PIN_CODE_REPLY 0x000D
344struct hci_cp_pin_code_reply {
345 bdaddr_t bdaddr;
346 __u8 pin_len;
347 __u8 pin_code[16];
348} __attribute__ ((packed));
349
350#define OCF_PIN_CODE_NEG_REPLY 0x000E
351struct hci_cp_pin_code_neg_reply {
352 bdaddr_t bdaddr;
353} __attribute__ ((packed));
354
355#define OCF_CHANGE_CONN_PTYPE 0x000F
356struct hci_cp_change_conn_ptype {
357 __u16 handle;
358 __u16 pkt_type;
359} __attribute__ ((packed));
360
361#define OCF_AUTH_REQUESTED 0x0011
362struct hci_cp_auth_requested {
363 __u16 handle;
364} __attribute__ ((packed));
365
366#define OCF_SET_CONN_ENCRYPT 0x0013
367struct hci_cp_set_conn_encrypt {
368 __u16 handle;
369 __u8 encrypt;
370} __attribute__ ((packed));
371
372#define OCF_CHANGE_CONN_LINK_KEY 0x0015
373struct hci_cp_change_conn_link_key {
374 __u16 handle;
375} __attribute__ ((packed));
376
377#define OCF_READ_REMOTE_FEATURES 0x001B
378struct hci_cp_read_rmt_features {
379 __u16 handle;
380} __attribute__ ((packed));
381
382#define OCF_READ_REMOTE_VERSION 0x001D
383struct hci_cp_read_rmt_version {
384 __u16 handle;
385} __attribute__ ((packed));
386
387/* Link Policy */
388#define OGF_LINK_POLICY 0x02
389#define OCF_ROLE_DISCOVERY 0x0009
390struct hci_cp_role_discovery {
391 __u16 handle;
392} __attribute__ ((packed));
393struct hci_rp_role_discovery {
394 __u8 status;
395 __u16 handle;
396 __u8 role;
397} __attribute__ ((packed));
398
399#define OCF_READ_LINK_POLICY 0x000C
400struct hci_cp_read_link_policy {
401 __u16 handle;
402} __attribute__ ((packed));
403struct hci_rp_read_link_policy {
404 __u8 status;
405 __u16 handle;
406 __u16 policy;
407} __attribute__ ((packed));
408
409#define OCF_SWITCH_ROLE 0x000B
410struct hci_cp_switch_role {
411 bdaddr_t bdaddr;
412 __u8 role;
413} __attribute__ ((packed));
414
415#define OCF_WRITE_LINK_POLICY 0x000D
416struct hci_cp_write_link_policy {
417 __u16 handle;
418 __u16 policy;
419} __attribute__ ((packed));
420struct hci_rp_write_link_policy {
421 __u8 status;
422 __u16 handle;
423} __attribute__ ((packed));
424
425/* Status params */
426#define OGF_STATUS_PARAM 0x05
427
428/* Testing commands */
429#define OGF_TESTING_CMD 0x3E
430
431/* Vendor specific commands */
432#define OGF_VENDOR_CMD 0x3F
433
434/* ---- HCI Events ---- */
435#define HCI_EV_INQUIRY_COMPLETE 0x01
436
437#define HCI_EV_INQUIRY_RESULT 0x02
438struct inquiry_info {
439 bdaddr_t bdaddr;
440 __u8 pscan_rep_mode;
441 __u8 pscan_period_mode;
442 __u8 pscan_mode;
443 __u8 dev_class[3];
444 __u16 clock_offset;
445} __attribute__ ((packed));
446
447#define HCI_EV_INQUIRY_RESULT_WITH_RSSI 0x22
448struct inquiry_info_with_rssi {
449 bdaddr_t bdaddr;
450 __u8 pscan_rep_mode;
451 __u8 pscan_period_mode;
452 __u8 dev_class[3];
453 __u16 clock_offset;
454 __s8 rssi;
455} __attribute__ ((packed));
456
457#define HCI_EV_CONN_COMPLETE 0x03
458struct hci_ev_conn_complete {
459 __u8 status;
460 __u16 handle;
461 bdaddr_t bdaddr;
462 __u8 link_type;
463 __u8 encr_mode;
464} __attribute__ ((packed));
465
466#define HCI_EV_CONN_REQUEST 0x04
467struct hci_ev_conn_request {
468 bdaddr_t bdaddr;
469 __u8 dev_class[3];
470 __u8 link_type;
471} __attribute__ ((packed));
472
473#define HCI_EV_DISCONN_COMPLETE 0x05
474struct hci_ev_disconn_complete {
475 __u8 status;
476 __u16 handle;
477 __u8 reason;
478} __attribute__ ((packed));
479
480#define HCI_EV_AUTH_COMPLETE 0x06
481struct hci_ev_auth_complete {
482 __u8 status;
483 __u16 handle;
484} __attribute__ ((packed));
485
486#define HCI_EV_ENCRYPT_CHANGE 0x08
487struct hci_ev_encrypt_change {
488 __u8 status;
489 __u16 handle;
490 __u8 encrypt;
491} __attribute__ ((packed));
492
493#define HCI_EV_CHANGE_CONN_LINK_KEY_COMPLETE 0x09
494struct hci_ev_change_conn_link_key_complete {
495 __u8 status;
496 __u16 handle;
497} __attribute__ ((packed));
498
499#define HCI_EV_QOS_SETUP_COMPLETE 0x0D
500struct hci_qos {
501 __u8 service_type;
502 __u32 token_rate;
503 __u32 peak_bandwidth;
504 __u32 latency;
505 __u32 delay_variation;
506} __attribute__ ((packed));
507struct hci_ev_qos_setup_complete {
508 __u8 status;
509 __u16 handle;
510 struct hci_qos qos;
511} __attribute__ ((packed));
512
513#define HCI_EV_CMD_COMPLETE 0x0E
514struct hci_ev_cmd_complete {
515 __u8 ncmd;
516 __u16 opcode;
517} __attribute__ ((packed));
518
519#define HCI_EV_CMD_STATUS 0x0F
520struct hci_ev_cmd_status {
521 __u8 status;
522 __u8 ncmd;
523 __u16 opcode;
524} __attribute__ ((packed));
525
526#define HCI_EV_NUM_COMP_PKTS 0x13
527struct hci_ev_num_comp_pkts {
528 __u8 num_hndl;
529 /* variable length part */
530} __attribute__ ((packed));
531
532#define HCI_EV_ROLE_CHANGE 0x12
533struct hci_ev_role_change {
534 __u8 status;
535 bdaddr_t bdaddr;
536 __u8 role;
537} __attribute__ ((packed));
538
539#define HCI_EV_MODE_CHANGE 0x14
540struct hci_ev_mode_change {
541 __u8 status;
542 __u16 handle;
543 __u8 mode;
544 __u16 interval;
545} __attribute__ ((packed));
546
547#define HCI_EV_PIN_CODE_REQ 0x16
548struct hci_ev_pin_code_req {
549 bdaddr_t bdaddr;
550} __attribute__ ((packed));
551
552#define HCI_EV_LINK_KEY_REQ 0x17
553struct hci_ev_link_key_req {
554 bdaddr_t bdaddr;
555} __attribute__ ((packed));
556
557#define HCI_EV_LINK_KEY_NOTIFY 0x18
558struct hci_ev_link_key_notify {
559 bdaddr_t bdaddr;
560 __u8 link_key[16];
561 __u8 key_type;
562} __attribute__ ((packed));
563
564#define HCI_EV_RMT_FEATURES 0x0B
565struct hci_ev_rmt_features {
566 __u8 status;
567 __u16 handle;
568 __u8 features[8];
569} __attribute__ ((packed));
570
571#define HCI_EV_RMT_VERSION 0x0C
572struct hci_ev_rmt_version {
573 __u8 status;
574 __u16 handle;
575 __u8 lmp_ver;
576 __u16 manufacturer;
577 __u16 lmp_subver;
578} __attribute__ ((packed));
579
580#define HCI_EV_CLOCK_OFFSET 0x01C
581struct hci_ev_clock_offset {
582 __u8 status;
583 __u16 handle;
584 __u16 clock_offset;
585} __attribute__ ((packed));
586
587/* Internal events generated by Bluetooth stack */
588#define HCI_EV_STACK_INTERNAL 0xFD
589struct hci_ev_stack_internal {
590 __u16 type;
591 __u8 data[0];
592} __attribute__ ((packed));
593
594#define HCI_EV_SI_DEVICE 0x01
595struct hci_ev_si_device {
596 __u16 event;
597 __u16 dev_id;
598} __attribute__ ((packed));
599
600#define HCI_EV_SI_SECURITY 0x02
601struct hci_ev_si_security {
602 __u16 event;
603 __u16 proto;
604 __u16 subproto;
605 __u8 incoming;
606} __attribute__ ((packed));
607
608/* ---- HCI Packet structures ---- */
609#define HCI_COMMAND_HDR_SIZE 3
610#define HCI_EVENT_HDR_SIZE 2
611#define HCI_ACL_HDR_SIZE 4
612#define HCI_SCO_HDR_SIZE 3
613
614struct hci_command_hdr {
615 __u16 opcode; /* OCF & OGF */
616 __u8 plen;
617} __attribute__ ((packed));
618
619struct hci_event_hdr {
620 __u8 evt;
621 __u8 plen;
622} __attribute__ ((packed));
623
624struct hci_acl_hdr {
625 __u16 handle; /* Handle & Flags(PB, BC) */
626 __u16 dlen;
627} __attribute__ ((packed));
628
629struct hci_sco_hdr {
630 __u16 handle;
631 __u8 dlen;
632} __attribute__ ((packed));
633
634/* Command opcode pack/unpack */
635#define hci_opcode_pack(ogf, ocf) (__u16)((ocf & 0x03ff)|(ogf << 10))
636#define hci_opcode_ogf(op) (op >> 10)
637#define hci_opcode_ocf(op) (op & 0x03ff)
638
639/* ACL handle and flags pack/unpack */
640#define hci_handle_pack(h, f) (__u16)((h & 0x0fff)|(f << 12))
641#define hci_handle(h) (h & 0x0fff)
642#define hci_flags(h) (h >> 12)
643
644/* ---- HCI Sockets ---- */
645
646/* Socket options */
647#define HCI_DATA_DIR 1
648#define HCI_FILTER 2
649#define HCI_TIME_STAMP 3
650
651/* CMSG flags */
652#define HCI_CMSG_DIR 0x0001
653#define HCI_CMSG_TSTAMP 0x0002
654
655struct sockaddr_hci {
656 sa_family_t hci_family;
657 unsigned short hci_dev;
658};
659#define HCI_DEV_NONE 0xffff
660
661struct hci_filter {
662 unsigned long type_mask;
663 unsigned long event_mask[2];
664 __u16 opcode;
665};
666
667struct hci_ufilter {
668 __u32 type_mask;
669 __u32 event_mask[2];
670 __u16 opcode;
671};
672
673#define HCI_FLT_TYPE_BITS 31
674#define HCI_FLT_EVENT_BITS 63
675#define HCI_FLT_OGF_BITS 63
676#define HCI_FLT_OCF_BITS 127
677
678/* ---- HCI Ioctl requests structures ---- */
679struct hci_dev_stats {
680 __u32 err_rx;
681 __u32 err_tx;
682 __u32 cmd_tx;
683 __u32 evt_rx;
684 __u32 acl_tx;
685 __u32 acl_rx;
686 __u32 sco_tx;
687 __u32 sco_rx;
688 __u32 byte_rx;
689 __u32 byte_tx;
690};
691
692struct hci_dev_info {
693 __u16 dev_id;
694 char name[8];
695
696 bdaddr_t bdaddr;
697
698 __u32 flags;
699 __u8 type;
700
701 __u8 features[8];
702
703 __u32 pkt_type;
704 __u32 link_policy;
705 __u32 link_mode;
706
707 __u16 acl_mtu;
708 __u16 acl_pkts;
709 __u16 sco_mtu;
710 __u16 sco_pkts;
711
712 struct hci_dev_stats stat;
713};
714
715struct hci_conn_info {
716 __u16 handle;
717 bdaddr_t bdaddr;
718 __u8 type;
719 __u8 out;
720 __u16 state;
721 __u32 link_mode;
722};
723
724struct hci_dev_req {
725 __u16 dev_id;
726 __u32 dev_opt;
727};
728
729struct hci_dev_list_req {
730 __u16 dev_num;
731 struct hci_dev_req dev_req[0]; /* hci_dev_req structures */
732};
733
734struct hci_conn_list_req {
735 __u16 dev_id;
736 __u16 conn_num;
737 struct hci_conn_info conn_info[0];
738};
739
740struct hci_conn_info_req {
741 bdaddr_t bdaddr;
742 __u8 type;
743 struct hci_conn_info conn_info[0];
744};
745
746struct hci_inquiry_req {
747 __u16 dev_id;
748 __u16 flags;
749 __u8 lap[3];
750 __u8 length;
751 __u8 num_rsp;
752};
753#define IREQ_CACHE_FLUSH 0x0001
754
755#endif /* __HCI_H */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
new file mode 100644
index 000000000000..6d63a47c731b
--- /dev/null
+++ b/include/net/bluetooth/hci_core.h
@@ -0,0 +1,626 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __HCI_CORE_H
26#define __HCI_CORE_H
27
28#include <linux/proc_fs.h>
29#include <net/bluetooth/hci.h>
30
31/* HCI upper protocols */
32#define HCI_PROTO_L2CAP 0
33#define HCI_PROTO_SCO 1
34
35#define HCI_INIT_TIMEOUT (HZ * 10)
36
37extern struct proc_dir_entry *proc_bt_hci;
38
39/* HCI Core structures */
40
41struct inquiry_data {
42 bdaddr_t bdaddr;
43 __u8 pscan_rep_mode;
44 __u8 pscan_period_mode;
45 __u8 pscan_mode;
46 __u8 dev_class[3];
47 __u16 clock_offset;
48 __s8 rssi;
49};
50
51struct inquiry_entry {
52 struct inquiry_entry *next;
53 __u32 timestamp;
54 struct inquiry_data data;
55};
56
57struct inquiry_cache {
58 spinlock_t lock;
59 __u32 timestamp;
60 struct inquiry_entry *list;
61};
62
63struct hci_conn_hash {
64 struct list_head list;
65 spinlock_t lock;
66 unsigned int acl_num;
67 unsigned int sco_num;
68};
69
70struct hci_dev {
71 struct list_head list;
72 spinlock_t lock;
73 atomic_t refcnt;
74
75 char name[8];
76 unsigned long flags;
77 __u16 id;
78 __u8 type;
79 bdaddr_t bdaddr;
80 __u8 features[8];
81 __u16 voice_setting;
82
83 __u16 pkt_type;
84 __u16 link_policy;
85 __u16 link_mode;
86
87 unsigned long quirks;
88
89 atomic_t cmd_cnt;
90 unsigned int acl_cnt;
91 unsigned int sco_cnt;
92
93 unsigned int acl_mtu;
94 unsigned int sco_mtu;
95 unsigned int acl_pkts;
96 unsigned int sco_pkts;
97
98 unsigned long cmd_last_tx;
99 unsigned long acl_last_tx;
100 unsigned long sco_last_tx;
101
102 struct tasklet_struct cmd_task;
103 struct tasklet_struct rx_task;
104 struct tasklet_struct tx_task;
105
106 struct sk_buff_head rx_q;
107 struct sk_buff_head raw_q;
108 struct sk_buff_head cmd_q;
109
110 struct sk_buff *sent_cmd;
111
112 struct semaphore req_lock;
113 wait_queue_head_t req_wait_q;
114 __u32 req_status;
115 __u32 req_result;
116
117 struct inquiry_cache inq_cache;
118 struct hci_conn_hash conn_hash;
119
120 struct hci_dev_stats stat;
121
122 struct sk_buff_head driver_init;
123
124 void *driver_data;
125 void *core_data;
126
127 atomic_t promisc;
128
129#ifdef CONFIG_PROC_FS
130 struct proc_dir_entry *proc;
131#endif
132
133 struct class_device class_dev;
134
135 struct module *owner;
136
137 int (*open)(struct hci_dev *hdev);
138 int (*close)(struct hci_dev *hdev);
139 int (*flush)(struct hci_dev *hdev);
140 int (*send)(struct sk_buff *skb);
141 void (*destruct)(struct hci_dev *hdev);
142 void (*notify)(struct hci_dev *hdev, unsigned int evt);
143 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
144};
145
146struct hci_conn {
147 struct list_head list;
148
149 atomic_t refcnt;
150 spinlock_t lock;
151
152 bdaddr_t dst;
153 __u16 handle;
154 __u16 state;
155 __u8 type;
156 __u8 out;
157 __u8 dev_class[3];
158 __u32 link_mode;
159 unsigned long pend;
160
161 unsigned int sent;
162
163 struct sk_buff_head data_q;
164
165 struct timer_list timer;
166
167 struct hci_dev *hdev;
168 void *l2cap_data;
169 void *sco_data;
170 void *priv;
171
172 struct hci_conn *link;
173};
174
175extern struct hci_proto *hci_proto[];
176extern struct list_head hci_dev_list;
177extern struct list_head hci_cb_list;
178extern rwlock_t hci_dev_list_lock;
179extern rwlock_t hci_cb_list_lock;
180
181/* ----- Inquiry cache ----- */
182#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds
183#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds
184
185#define inquiry_cache_lock(c) spin_lock(&c->lock)
186#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
187#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
188#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
189
190static inline void inquiry_cache_init(struct hci_dev *hdev)
191{
192 struct inquiry_cache *c = &hdev->inq_cache;
193 spin_lock_init(&c->lock);
194 c->list = NULL;
195}
196
197static inline int inquiry_cache_empty(struct hci_dev *hdev)
198{
199 struct inquiry_cache *c = &hdev->inq_cache;
200 return (c->list == NULL);
201}
202
203static inline long inquiry_cache_age(struct hci_dev *hdev)
204{
205 struct inquiry_cache *c = &hdev->inq_cache;
206 return jiffies - c->timestamp;
207}
208
209static inline long inquiry_entry_age(struct inquiry_entry *e)
210{
211 return jiffies - e->timestamp;
212}
213
214struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
215void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
216
217/* ----- HCI Connections ----- */
218enum {
219 HCI_CONN_AUTH_PEND,
220 HCI_CONN_ENCRYPT_PEND,
221 HCI_CONN_RSWITCH_PEND
222};
223
224static inline void hci_conn_hash_init(struct hci_dev *hdev)
225{
226 struct hci_conn_hash *h = &hdev->conn_hash;
227 INIT_LIST_HEAD(&h->list);
228 spin_lock_init(&h->lock);
229 h->acl_num = 0;
230 h->sco_num = 0;
231}
232
233static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
234{
235 struct hci_conn_hash *h = &hdev->conn_hash;
236 list_add(&c->list, &h->list);
237 if (c->type == ACL_LINK)
238 h->acl_num++;
239 else
240 h->sco_num++;
241}
242
243static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
244{
245 struct hci_conn_hash *h = &hdev->conn_hash;
246 list_del(&c->list);
247 if (c->type == ACL_LINK)
248 h->acl_num--;
249 else
250 h->sco_num--;
251}
252
253static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
254 __u16 handle)
255{
256 struct hci_conn_hash *h = &hdev->conn_hash;
257 struct list_head *p;
258 struct hci_conn *c;
259
260 list_for_each(p, &h->list) {
261 c = list_entry(p, struct hci_conn, list);
262 if (c->handle == handle)
263 return c;
264 }
265 return NULL;
266}
267
268static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
269 __u8 type, bdaddr_t *ba)
270{
271 struct hci_conn_hash *h = &hdev->conn_hash;
272 struct list_head *p;
273 struct hci_conn *c;
274
275 list_for_each(p, &h->list) {
276 c = list_entry(p, struct hci_conn, list);
277 if (c->type == type && !bacmp(&c->dst, ba))
278 return c;
279 }
280 return NULL;
281}
282
283void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
284void hci_add_sco(struct hci_conn *conn, __u16 handle);
285
286struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
287int hci_conn_del(struct hci_conn *conn);
288void hci_conn_hash_flush(struct hci_dev *hdev);
289
290struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *src);
291int hci_conn_auth(struct hci_conn *conn);
292int hci_conn_encrypt(struct hci_conn *conn);
293int hci_conn_change_link_key(struct hci_conn *conn);
294int hci_conn_switch_role(struct hci_conn *conn, uint8_t role);
295
296static inline void hci_conn_set_timer(struct hci_conn *conn, unsigned long timeout)
297{
298 mod_timer(&conn->timer, jiffies + timeout);
299}
300
301static inline void hci_conn_del_timer(struct hci_conn *conn)
302{
303 del_timer(&conn->timer);
304}
305
306static inline void hci_conn_hold(struct hci_conn *conn)
307{
308 atomic_inc(&conn->refcnt);
309 hci_conn_del_timer(conn);
310}
311
312static inline void hci_conn_put(struct hci_conn *conn)
313{
314 if (atomic_dec_and_test(&conn->refcnt)) {
315 if (conn->type == ACL_LINK) {
316 unsigned long timeo = (conn->out) ?
317 HCI_DISCONN_TIMEOUT : HCI_DISCONN_TIMEOUT * 2;
318 hci_conn_set_timer(conn, timeo);
319 } else
320 hci_conn_set_timer(conn, HZ / 100);
321 }
322}
323
324/* ----- HCI tasks ----- */
325static inline void hci_sched_cmd(struct hci_dev *hdev)
326{
327 tasklet_schedule(&hdev->cmd_task);
328}
329
330static inline void hci_sched_rx(struct hci_dev *hdev)
331{
332 tasklet_schedule(&hdev->rx_task);
333}
334
335static inline void hci_sched_tx(struct hci_dev *hdev)
336{
337 tasklet_schedule(&hdev->tx_task);
338}
339
340/* ----- HCI Devices ----- */
341static inline void __hci_dev_put(struct hci_dev *d)
342{
343 if (atomic_dec_and_test(&d->refcnt))
344 d->destruct(d);
345}
346
347static inline void hci_dev_put(struct hci_dev *d)
348{
349 __hci_dev_put(d);
350 module_put(d->owner);
351}
352
353static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
354{
355 atomic_inc(&d->refcnt);
356 return d;
357}
358
359static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
360{
361 if (try_module_get(d->owner))
362 return __hci_dev_hold(d);
363 return NULL;
364}
365
366#define hci_dev_lock(d) spin_lock(&d->lock)
367#define hci_dev_unlock(d) spin_unlock(&d->lock)
368#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
369#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
370
371struct hci_dev *hci_dev_get(int index);
372struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
373
374struct hci_dev *hci_alloc_dev(void);
375void hci_free_dev(struct hci_dev *hdev);
376int hci_register_dev(struct hci_dev *hdev);
377int hci_unregister_dev(struct hci_dev *hdev);
378int hci_suspend_dev(struct hci_dev *hdev);
379int hci_resume_dev(struct hci_dev *hdev);
380int hci_dev_open(__u16 dev);
381int hci_dev_close(__u16 dev);
382int hci_dev_reset(__u16 dev);
383int hci_dev_reset_stat(__u16 dev);
384int hci_dev_cmd(unsigned int cmd, void __user *arg);
385int hci_get_dev_list(void __user *arg);
386int hci_get_dev_info(void __user *arg);
387int hci_get_conn_list(void __user *arg);
388int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
389int hci_inquiry(void __user *arg);
390
391void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
392
393/* Receive frame from HCI drivers */
394static inline int hci_recv_frame(struct sk_buff *skb)
395{
396 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
397 if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
398 && !test_bit(HCI_INIT, &hdev->flags))) {
399 kfree_skb(skb);
400 return -ENXIO;
401 }
402
403 /* Incomming skb */
404 bt_cb(skb)->incoming = 1;
405
406 /* Time stamp */
407 do_gettimeofday(&skb->stamp);
408
409 /* Queue frame for rx task */
410 skb_queue_tail(&hdev->rx_q, skb);
411 hci_sched_rx(hdev);
412 return 0;
413}
414
415int hci_register_sysfs(struct hci_dev *hdev);
416void hci_unregister_sysfs(struct hci_dev *hdev);
417
418#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->class_dev.dev = (pdev))
419
420/* ----- LMP capabilities ----- */
421#define lmp_rswitch_capable(dev) (dev->features[0] & LMP_RSWITCH)
422#define lmp_encrypt_capable(dev) (dev->features[0] & LMP_ENCRYPT)
423
424/* ----- HCI protocols ----- */
425struct hci_proto {
426 char *name;
427 unsigned int id;
428 unsigned long flags;
429
430 void *priv;
431
432 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
433 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
434 int (*disconn_ind) (struct hci_conn *conn, __u8 reason);
435 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
436 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
437 int (*auth_cfm) (struct hci_conn *conn, __u8 status);
438 int (*encrypt_cfm) (struct hci_conn *conn, __u8 status);
439};
440
441static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
442{
443 register struct hci_proto *hp;
444 int mask = 0;
445
446 hp = hci_proto[HCI_PROTO_L2CAP];
447 if (hp && hp->connect_ind)
448 mask |= hp->connect_ind(hdev, bdaddr, type);
449
450 hp = hci_proto[HCI_PROTO_SCO];
451 if (hp && hp->connect_ind)
452 mask |= hp->connect_ind(hdev, bdaddr, type);
453
454 return mask;
455}
456
457static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
458{
459 register struct hci_proto *hp;
460
461 hp = hci_proto[HCI_PROTO_L2CAP];
462 if (hp && hp->connect_cfm)
463 hp->connect_cfm(conn, status);
464
465 hp = hci_proto[HCI_PROTO_SCO];
466 if (hp && hp->connect_cfm)
467 hp->connect_cfm(conn, status);
468}
469
470static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
471{
472 register struct hci_proto *hp;
473
474 hp = hci_proto[HCI_PROTO_L2CAP];
475 if (hp && hp->disconn_ind)
476 hp->disconn_ind(conn, reason);
477
478 hp = hci_proto[HCI_PROTO_SCO];
479 if (hp && hp->disconn_ind)
480 hp->disconn_ind(conn, reason);
481}
482
483static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
484{
485 register struct hci_proto *hp;
486
487 hp = hci_proto[HCI_PROTO_L2CAP];
488 if (hp && hp->auth_cfm)
489 hp->auth_cfm(conn, status);
490
491 hp = hci_proto[HCI_PROTO_SCO];
492 if (hp && hp->auth_cfm)
493 hp->auth_cfm(conn, status);
494}
495
496static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status)
497{
498 register struct hci_proto *hp;
499
500 hp = hci_proto[HCI_PROTO_L2CAP];
501 if (hp && hp->encrypt_cfm)
502 hp->encrypt_cfm(conn, status);
503
504 hp = hci_proto[HCI_PROTO_SCO];
505 if (hp && hp->encrypt_cfm)
506 hp->encrypt_cfm(conn, status);
507}
508
509int hci_register_proto(struct hci_proto *hproto);
510int hci_unregister_proto(struct hci_proto *hproto);
511
512/* ----- HCI callbacks ----- */
513struct hci_cb {
514 struct list_head list;
515
516 char *name;
517
518 void (*auth_cfm) (struct hci_conn *conn, __u8 status);
519 void (*encrypt_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
520 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
521 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
522};
523
524static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
525{
526 struct list_head *p;
527
528 hci_proto_auth_cfm(conn, status);
529
530 read_lock_bh(&hci_cb_list_lock);
531 list_for_each(p, &hci_cb_list) {
532 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
533 if (cb->auth_cfm)
534 cb->auth_cfm(conn, status);
535 }
536 read_unlock_bh(&hci_cb_list_lock);
537}
538
539static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
540{
541 struct list_head *p;
542
543 hci_proto_encrypt_cfm(conn, status);
544
545 read_lock_bh(&hci_cb_list_lock);
546 list_for_each(p, &hci_cb_list) {
547 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
548 if (cb->encrypt_cfm)
549 cb->encrypt_cfm(conn, status, encrypt);
550 }
551 read_unlock_bh(&hci_cb_list_lock);
552}
553
554static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
555{
556 struct list_head *p;
557
558 read_lock_bh(&hci_cb_list_lock);
559 list_for_each(p, &hci_cb_list) {
560 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
561 if (cb->key_change_cfm)
562 cb->key_change_cfm(conn, status);
563 }
564 read_unlock_bh(&hci_cb_list_lock);
565}
566
567static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
568{
569 struct list_head *p;
570
571 read_lock_bh(&hci_cb_list_lock);
572 list_for_each(p, &hci_cb_list) {
573 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
574 if (cb->role_switch_cfm)
575 cb->role_switch_cfm(conn, status, role);
576 }
577 read_unlock_bh(&hci_cb_list_lock);
578}
579
580int hci_register_cb(struct hci_cb *hcb);
581int hci_unregister_cb(struct hci_cb *hcb);
582
583int hci_register_notifier(struct notifier_block *nb);
584int hci_unregister_notifier(struct notifier_block *nb);
585
586int hci_send_cmd(struct hci_dev *hdev, __u16 ogf, __u16 ocf, __u32 plen, void *param);
587int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
588int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
589
590void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 ogf, __u16 ocf);
591
592void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
593
594/* ----- HCI Sockets ----- */
595void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
596
597/* HCI info for socket */
598#define hci_pi(sk) ((struct hci_pinfo *) sk)
599
600struct hci_pinfo {
601 struct bt_sock bt;
602 struct hci_dev *hdev;
603 struct hci_filter filter;
604 __u32 cmsg_mask;
605};
606
607/* HCI security filter */
608#define HCI_SFLT_MAX_OGF 5
609
610struct hci_sec_filter {
611 __u32 type_mask;
612 __u32 event_mask[2];
613 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
614};
615
616/* ----- HCI requests ----- */
617#define HCI_REQ_DONE 0
618#define HCI_REQ_PEND 1
619#define HCI_REQ_CANCELED 2
620
621#define hci_req_lock(d) down(&d->req_lock)
622#define hci_req_unlock(d) up(&d->req_lock)
623
624void hci_req_complete(struct hci_dev *hdev, int result);
625
626#endif /* __HCI_CORE_H */
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
new file mode 100644
index 000000000000..8242a0ee1f58
--- /dev/null
+++ b/include/net/bluetooth/l2cap.h
@@ -0,0 +1,238 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __L2CAP_H
26#define __L2CAP_H
27
28/* L2CAP defaults */
29#define L2CAP_DEFAULT_MTU 672
30#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF
31
32#define L2CAP_CONN_TIMEOUT (HZ * 40)
33
34/* L2CAP socket address */
35struct sockaddr_l2 {
36 sa_family_t l2_family;
37 unsigned short l2_psm;
38 bdaddr_t l2_bdaddr;
39};
40
41/* L2CAP socket options */
42#define L2CAP_OPTIONS 0x01
43struct l2cap_options {
44 __u16 omtu;
45 __u16 imtu;
46 __u16 flush_to;
47 __u8 mode;
48};
49
50#define L2CAP_CONNINFO 0x02
51struct l2cap_conninfo {
52 __u16 hci_handle;
53 __u8 dev_class[3];
54};
55
56#define L2CAP_LM 0x03
57#define L2CAP_LM_MASTER 0x0001
58#define L2CAP_LM_AUTH 0x0002
59#define L2CAP_LM_ENCRYPT 0x0004
60#define L2CAP_LM_TRUSTED 0x0008
61#define L2CAP_LM_RELIABLE 0x0010
62#define L2CAP_LM_SECURE 0x0020
63
64/* L2CAP command codes */
65#define L2CAP_COMMAND_REJ 0x01
66#define L2CAP_CONN_REQ 0x02
67#define L2CAP_CONN_RSP 0x03
68#define L2CAP_CONF_REQ 0x04
69#define L2CAP_CONF_RSP 0x05
70#define L2CAP_DISCONN_REQ 0x06
71#define L2CAP_DISCONN_RSP 0x07
72#define L2CAP_ECHO_REQ 0x08
73#define L2CAP_ECHO_RSP 0x09
74#define L2CAP_INFO_REQ 0x0a
75#define L2CAP_INFO_RSP 0x0b
76
77/* L2CAP structures */
78struct l2cap_hdr {
79 __u16 len;
80 __u16 cid;
81} __attribute__ ((packed));
82#define L2CAP_HDR_SIZE 4
83
84struct l2cap_cmd_hdr {
85 __u8 code;
86 __u8 ident;
87 __u16 len;
88} __attribute__ ((packed));
89#define L2CAP_CMD_HDR_SIZE 4
90
91struct l2cap_cmd_rej {
92 __u16 reason;
93} __attribute__ ((packed));
94
95struct l2cap_conn_req {
96 __u16 psm;
97 __u16 scid;
98} __attribute__ ((packed));
99
100struct l2cap_conn_rsp {
101 __u16 dcid;
102 __u16 scid;
103 __u16 result;
104 __u16 status;
105} __attribute__ ((packed));
106
107/* connect result */
108#define L2CAP_CR_SUCCESS 0x0000
109#define L2CAP_CR_PEND 0x0001
110#define L2CAP_CR_BAD_PSM 0x0002
111#define L2CAP_CR_SEC_BLOCK 0x0003
112#define L2CAP_CR_NO_MEM 0x0004
113
114/* connect status */
115#define L2CAP_CS_NO_INFO 0x0000
116#define L2CAP_CS_AUTHEN_PEND 0x0001
117#define L2CAP_CS_AUTHOR_PEND 0x0002
118
119struct l2cap_conf_req {
120 __u16 dcid;
121 __u16 flags;
122 __u8 data[0];
123} __attribute__ ((packed));
124
125struct l2cap_conf_rsp {
126 __u16 scid;
127 __u16 flags;
128 __u16 result;
129 __u8 data[0];
130} __attribute__ ((packed));
131
132#define L2CAP_CONF_SUCCESS 0x00
133#define L2CAP_CONF_UNACCEPT 0x01
134
135struct l2cap_conf_opt {
136 __u8 type;
137 __u8 len;
138 __u8 val[0];
139} __attribute__ ((packed));
140#define L2CAP_CONF_OPT_SIZE 2
141
142#define L2CAP_CONF_MTU 0x01
143#define L2CAP_CONF_FLUSH_TO 0x02
144#define L2CAP_CONF_QOS 0x03
145#define L2CAP_CONF_RFC 0x04
146
147#define L2CAP_CONF_MAX_SIZE 22
148
149struct l2cap_disconn_req {
150 __u16 dcid;
151 __u16 scid;
152} __attribute__ ((packed));
153
154struct l2cap_disconn_rsp {
155 __u16 dcid;
156 __u16 scid;
157} __attribute__ ((packed));
158
159struct l2cap_info_req {
160 __u16 type;
161 __u8 data[0];
162} __attribute__ ((packed));
163
164struct l2cap_info_rsp {
165 __u16 type;
166 __u16 result;
167 __u8 data[0];
168} __attribute__ ((packed));
169
170/* info type */
171#define L2CAP_IT_CL_MTU 0x0001
172#define L2CAP_IT_FEAT_MASK 0x0002
173
174/* info result */
175#define L2CAP_IR_SUCCESS 0x0000
176#define L2CAP_IR_NOTSUPP 0x0001
177
178/* ----- L2CAP connections ----- */
179struct l2cap_chan_list {
180 struct sock *head;
181 rwlock_t lock;
182 long num;
183};
184
185struct l2cap_conn {
186 struct hci_conn *hcon;
187
188 bdaddr_t *dst;
189 bdaddr_t *src;
190
191 unsigned int mtu;
192
193 spinlock_t lock;
194
195 struct sk_buff *rx_skb;
196 __u32 rx_len;
197 __u8 rx_ident;
198 __u8 tx_ident;
199
200 struct l2cap_chan_list chan_list;
201};
202
203/* ----- L2CAP channel and socket info ----- */
204#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
205
206struct l2cap_pinfo {
207 struct bt_sock bt;
208 __u16 psm;
209 __u16 dcid;
210 __u16 scid;
211
212 __u16 imtu;
213 __u16 omtu;
214 __u16 flush_to;
215
216 __u32 link_mode;
217
218 __u8 conf_state;
219 __u8 conf_retry;
220 __u16 conf_mtu;
221
222 __u8 ident;
223
224 __u16 sport;
225
226 struct l2cap_conn *conn;
227 struct sock *next_c;
228 struct sock *prev_c;
229};
230
231#define L2CAP_CONF_REQ_SENT 0x01
232#define L2CAP_CONF_INPUT_DONE 0x02
233#define L2CAP_CONF_OUTPUT_DONE 0x04
234#define L2CAP_CONF_MAX_RETRIES 2
235
236void l2cap_load(void);
237
238#endif /* __L2CAP_H */
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
new file mode 100644
index 000000000000..13669bad00b3
--- /dev/null
+++ b/include/net/bluetooth/rfcomm.h
@@ -0,0 +1,353 @@
1/*
2 RFCOMM implementation for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
4 Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License version 2 as
8 published by the Free Software Foundation;
9
10 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
11 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
12 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
13 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
14 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
15 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18
19 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
20 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
21 SOFTWARE IS DISCLAIMED.
22*/
23
24#ifndef __RFCOMM_H
25#define __RFCOMM_H
26
27#define RFCOMM_PSM 3
28
29#define RFCOMM_CONN_TIMEOUT (HZ * 30)
30#define RFCOMM_DISC_TIMEOUT (HZ * 20)
31#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
32
33#define RFCOMM_DEFAULT_MTU 127
34#define RFCOMM_DEFAULT_CREDITS 7
35
36#define RFCOMM_MAX_L2CAP_MTU 1024
37#define RFCOMM_MAX_CREDITS 40
38
39#define RFCOMM_SKB_HEAD_RESERVE 8
40#define RFCOMM_SKB_TAIL_RESERVE 2
41#define RFCOMM_SKB_RESERVE (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)
42
43#define RFCOMM_SABM 0x2f
44#define RFCOMM_DISC 0x43
45#define RFCOMM_UA 0x63
46#define RFCOMM_DM 0x0f
47#define RFCOMM_UIH 0xef
48
49#define RFCOMM_TEST 0x08
50#define RFCOMM_FCON 0x28
51#define RFCOMM_FCOFF 0x18
52#define RFCOMM_MSC 0x38
53#define RFCOMM_RPN 0x24
54#define RFCOMM_RLS 0x14
55#define RFCOMM_PN 0x20
56#define RFCOMM_NSC 0x04
57
58#define RFCOMM_V24_FC 0x02
59#define RFCOMM_V24_RTC 0x04
60#define RFCOMM_V24_RTR 0x08
61#define RFCOMM_V24_IC 0x40
62#define RFCOMM_V24_DV 0x80
63
64#define RFCOMM_RPN_BR_2400 0x0
65#define RFCOMM_RPN_BR_4800 0x1
66#define RFCOMM_RPN_BR_7200 0x2
67#define RFCOMM_RPN_BR_9600 0x3
68#define RFCOMM_RPN_BR_19200 0x4
69#define RFCOMM_RPN_BR_38400 0x5
70#define RFCOMM_RPN_BR_57600 0x6
71#define RFCOMM_RPN_BR_115200 0x7
72#define RFCOMM_RPN_BR_230400 0x8
73
74#define RFCOMM_RPN_DATA_5 0x0
75#define RFCOMM_RPN_DATA_6 0x1
76#define RFCOMM_RPN_DATA_7 0x2
77#define RFCOMM_RPN_DATA_8 0x3
78
79#define RFCOMM_RPN_STOP_1 0
80#define RFCOMM_RPN_STOP_15 1
81
82#define RFCOMM_RPN_PARITY_NONE 0x0
83#define RFCOMM_RPN_PARITY_ODD 0x4
84#define RFCOMM_RPN_PARITY_EVEN 0x5
85#define RFCOMM_RPN_PARITY_MARK 0x6
86#define RFCOMM_RPN_PARITY_SPACE 0x7
87
88#define RFCOMM_RPN_FLOW_NONE 0x00
89
90#define RFCOMM_RPN_XON_CHAR 0x11
91#define RFCOMM_RPN_XOFF_CHAR 0x13
92
93#define RFCOMM_RPN_PM_BITRATE 0x0001
94#define RFCOMM_RPN_PM_DATA 0x0002
95#define RFCOMM_RPN_PM_STOP 0x0004
96#define RFCOMM_RPN_PM_PARITY 0x0008
97#define RFCOMM_RPN_PM_PARITY_TYPE 0x0010
98#define RFCOMM_RPN_PM_XON 0x0020
99#define RFCOMM_RPN_PM_XOFF 0x0040
100#define RFCOMM_RPN_PM_FLOW 0x3F00
101
102#define RFCOMM_RPN_PM_ALL 0x3F7F
103
104struct rfcomm_hdr {
105 u8 addr;
106 u8 ctrl;
107 u8 len; // Actual size can be 2 bytes
108} __attribute__ ((packed));
109
110struct rfcomm_cmd {
111 u8 addr;
112 u8 ctrl;
113 u8 len;
114 u8 fcs;
115} __attribute__ ((packed));
116
117struct rfcomm_mcc {
118 u8 type;
119 u8 len;
120} __attribute__ ((packed));
121
122struct rfcomm_pn {
123 u8 dlci;
124 u8 flow_ctrl;
125 u8 priority;
126 u8 ack_timer;
127 u16 mtu;
128 u8 max_retrans;
129 u8 credits;
130} __attribute__ ((packed));
131
132struct rfcomm_rpn {
133 u8 dlci;
134 u8 bit_rate;
135 u8 line_settings;
136 u8 flow_ctrl;
137 u8 xon_char;
138 u8 xoff_char;
139 u16 param_mask;
140} __attribute__ ((packed));
141
142struct rfcomm_rls {
143 u8 dlci;
144 u8 status;
145} __attribute__ ((packed));
146
147struct rfcomm_msc {
148 u8 dlci;
149 u8 v24_sig;
150} __attribute__ ((packed));
151
152/* ---- Core structures, flags etc ---- */
153
154struct rfcomm_session {
155 struct list_head list;
156 struct socket *sock;
157 unsigned long state;
158 unsigned long flags;
159 atomic_t refcnt;
160 int initiator;
161
162 /* Default DLC parameters */
163 int cfc;
164 uint mtu;
165
166 struct list_head dlcs;
167};
168
169struct rfcomm_dlc {
170 struct list_head list;
171 struct rfcomm_session *session;
172 struct sk_buff_head tx_queue;
173 struct timer_list timer;
174
175 spinlock_t lock;
176 unsigned long state;
177 unsigned long flags;
178 atomic_t refcnt;
179 u8 dlci;
180 u8 addr;
181 u8 priority;
182 u8 v24_sig;
183 u8 mscex;
184
185 u32 link_mode;
186
187 uint mtu;
188 uint cfc;
189 uint rx_credits;
190 uint tx_credits;
191
192 void *owner;
193
194 void (*data_ready)(struct rfcomm_dlc *d, struct sk_buff *skb);
195 void (*state_change)(struct rfcomm_dlc *d, int err);
196 void (*modem_status)(struct rfcomm_dlc *d, u8 v24_sig);
197};
198
199/* DLC and session flags */
200#define RFCOMM_RX_THROTTLED 0
201#define RFCOMM_TX_THROTTLED 1
202#define RFCOMM_TIMED_OUT 2
203#define RFCOMM_MSC_PENDING 3
204#define RFCOMM_AUTH_PENDING 4
205#define RFCOMM_AUTH_ACCEPT 5
206#define RFCOMM_AUTH_REJECT 6
207
208/* Scheduling flags and events */
209#define RFCOMM_SCHED_STATE 0
210#define RFCOMM_SCHED_RX 1
211#define RFCOMM_SCHED_TX 2
212#define RFCOMM_SCHED_TIMEO 3
213#define RFCOMM_SCHED_AUTH 4
214#define RFCOMM_SCHED_WAKEUP 31
215
216/* MSC exchange flags */
217#define RFCOMM_MSCEX_TX 1
218#define RFCOMM_MSCEX_RX 2
219#define RFCOMM_MSCEX_OK (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
220
221/* CFC states */
222#define RFCOMM_CFC_UNKNOWN -1
223#define RFCOMM_CFC_DISABLED 0
224#define RFCOMM_CFC_ENABLED RFCOMM_MAX_CREDITS
225
226/* ---- RFCOMM DLCs (channels) ---- */
227struct rfcomm_dlc *rfcomm_dlc_alloc(int prio);
228void rfcomm_dlc_free(struct rfcomm_dlc *d);
229int rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 channel);
230int rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
231int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
232int rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
233int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
234
235#define rfcomm_dlc_lock(d) spin_lock(&d->lock)
236#define rfcomm_dlc_unlock(d) spin_unlock(&d->lock)
237
238static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
239{
240 atomic_inc(&d->refcnt);
241}
242
243static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
244{
245 if (atomic_dec_and_test(&d->refcnt))
246 rfcomm_dlc_free(d);
247}
248
249extern void FASTCALL(__rfcomm_dlc_throttle(struct rfcomm_dlc *d));
250extern void FASTCALL(__rfcomm_dlc_unthrottle(struct rfcomm_dlc *d));
251
252static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
253{
254 if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
255 __rfcomm_dlc_throttle(d);
256}
257
258static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
259{
260 if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
261 __rfcomm_dlc_unthrottle(d);
262}
263
264/* ---- RFCOMM sessions ---- */
265void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst);
266
267static inline void rfcomm_session_hold(struct rfcomm_session *s)
268{
269 atomic_inc(&s->refcnt);
270}
271
272/* ---- RFCOMM chechsum ---- */
273extern u8 rfcomm_crc_table[];
274
275/* ---- RFCOMM sockets ---- */
276struct sockaddr_rc {
277 sa_family_t rc_family;
278 bdaddr_t rc_bdaddr;
279 u8 rc_channel;
280};
281
282#define RFCOMM_CONNINFO 0x02
283struct rfcomm_conninfo {
284 __u16 hci_handle;
285 __u8 dev_class[3];
286};
287
288#define RFCOMM_LM 0x03
289#define RFCOMM_LM_MASTER 0x0001
290#define RFCOMM_LM_AUTH 0x0002
291#define RFCOMM_LM_ENCRYPT 0x0004
292#define RFCOMM_LM_TRUSTED 0x0008
293#define RFCOMM_LM_RELIABLE 0x0010
294#define RFCOMM_LM_SECURE 0x0020
295
296#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
297
298struct rfcomm_pinfo {
299 struct bt_sock bt;
300 struct rfcomm_dlc *dlc;
301 u8 channel;
302 u32 link_mode;
303};
304
305int rfcomm_init_sockets(void);
306void rfcomm_cleanup_sockets(void);
307
308int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc **d);
309
310/* ---- RFCOMM TTY ---- */
311#define RFCOMM_MAX_DEV 256
312
313#define RFCOMMCREATEDEV _IOW('R', 200, int)
314#define RFCOMMRELEASEDEV _IOW('R', 201, int)
315#define RFCOMMGETDEVLIST _IOR('R', 210, int)
316#define RFCOMMGETDEVINFO _IOR('R', 211, int)
317#define RFCOMMSTEALDLC _IOW('R', 220, int)
318
319#define RFCOMM_REUSE_DLC 0
320#define RFCOMM_RELEASE_ONHUP 1
321#define RFCOMM_HANGUP_NOW 2
322#define RFCOMM_TTY_ATTACHED 3
323
324struct rfcomm_dev_req {
325 s16 dev_id;
326 u32 flags;
327 bdaddr_t src;
328 bdaddr_t dst;
329 u8 channel;
330
331};
332
333struct rfcomm_dev_info {
334 s16 id;
335 u32 flags;
336 u16 state;
337 bdaddr_t src;
338 bdaddr_t dst;
339 u8 channel;
340};
341
342struct rfcomm_dev_list_req {
343 u16 dev_num;
344 struct rfcomm_dev_info dev_info[0];
345};
346
347int rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
348int rfcomm_init_ttys(void);
349void rfcomm_cleanup_ttys(void);
350
351extern struct proc_dir_entry *proc_bt_rfcomm;
352
353#endif /* __RFCOMM_H */
diff --git a/include/net/bluetooth/sco.h b/include/net/bluetooth/sco.h
new file mode 100644
index 000000000000..e28a2a771471
--- /dev/null
+++ b/include/net/bluetooth/sco.h
@@ -0,0 +1,79 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __SCO_H
26#define __SCO_H
27
28/* SCO defaults */
29#define SCO_DEFAULT_MTU 500
30#define SCO_DEFAULT_FLUSH_TO 0xFFFF
31
32#define SCO_CONN_TIMEOUT (HZ * 40)
33#define SCO_DISCONN_TIMEOUT (HZ * 2)
34#define SCO_CONN_IDLE_TIMEOUT (HZ * 60)
35
36/* SCO socket address */
37struct sockaddr_sco {
38 sa_family_t sco_family;
39 bdaddr_t sco_bdaddr;
40};
41
42/* SCO socket options */
43#define SCO_OPTIONS 0x01
44struct sco_options {
45 __u16 mtu;
46};
47
48#define SCO_CONNINFO 0x02
49struct sco_conninfo {
50 __u16 hci_handle;
51 __u8 dev_class[3];
52};
53
54/* ---- SCO connections ---- */
55struct sco_conn {
56 struct hci_conn *hcon;
57
58 bdaddr_t *dst;
59 bdaddr_t *src;
60
61 spinlock_t lock;
62 struct sock *sk;
63
64 unsigned int mtu;
65};
66
67#define sco_conn_lock(c) spin_lock(&c->lock);
68#define sco_conn_unlock(c) spin_unlock(&c->lock);
69
70/* ----- SCO socket info ----- */
71#define sco_pi(sk) ((struct sco_pinfo *) sk)
72
73struct sco_pinfo {
74 struct bt_sock bt;
75 __u32 flags;
76 struct sco_conn *conn;
77};
78
79#endif /* __SCO_H */
diff --git a/include/net/checksum.h b/include/net/checksum.h
new file mode 100644
index 000000000000..e3ea7cc2c728
--- /dev/null
+++ b/include/net/checksum.h
@@ -0,0 +1,87 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Checksumming functions for IP, TCP, UDP and so on
7 *
8 * Authors: Jorge Cwik, <jorge@laser.satlink.net>
9 * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
10 * Borrows very liberally from tcp.c and ip.c, see those
11 * files for more names.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18
19#ifndef _CHECKSUM_H
20#define _CHECKSUM_H
21
22#include <linux/errno.h>
23#include <asm/types.h>
24#include <asm/byteorder.h>
25#include <asm/uaccess.h>
26#include <asm/checksum.h>
27
28#ifndef _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
29static inline
30unsigned int csum_and_copy_from_user (const unsigned char __user *src, unsigned char *dst,
31 int len, int sum, int *err_ptr)
32{
33 if (access_ok(VERIFY_READ, src, len))
34 return csum_partial_copy_from_user(src, dst, len, sum, err_ptr);
35
36 if (len)
37 *err_ptr = -EFAULT;
38
39 return sum;
40}
41#endif
42
43#ifndef HAVE_CSUM_COPY_USER
44static __inline__ unsigned int csum_and_copy_to_user
45(const unsigned char *src, unsigned char __user *dst, int len, unsigned int sum, int *err_ptr)
46{
47 sum = csum_partial(src, len, sum);
48
49 if (access_ok(VERIFY_WRITE, dst, len)) {
50 if (copy_to_user(dst, src, len) == 0)
51 return sum;
52 }
53 if (len)
54 *err_ptr = -EFAULT;
55
56 return -1; /* invalid checksum */
57}
58#endif
59
60static inline unsigned int csum_add(unsigned int csum, unsigned int addend)
61{
62 csum += addend;
63 return csum + (csum < addend);
64}
65
66static inline unsigned int csum_sub(unsigned int csum, unsigned int addend)
67{
68 return csum_add(csum, ~addend);
69}
70
71static inline unsigned int
72csum_block_add(unsigned int csum, unsigned int csum2, int offset)
73{
74 if (offset&1)
75 csum2 = ((csum2&0xFF00FF)<<8)+((csum2>>8)&0xFF00FF);
76 return csum_add(csum, csum2);
77}
78
79static inline unsigned int
80csum_block_sub(unsigned int csum, unsigned int csum2, int offset)
81{
82 if (offset&1)
83 csum2 = ((csum2&0xFF00FF)<<8)+((csum2>>8)&0xFF00FF);
84 return csum_sub(csum, csum2);
85}
86
87#endif
diff --git a/include/net/compat.h b/include/net/compat.h
new file mode 100644
index 000000000000..9983fd857804
--- /dev/null
+++ b/include/net/compat.h
@@ -0,0 +1,39 @@
1#ifndef NET_COMPAT_H
2#define NET_COMPAT_H
3
4#include <linux/config.h>
5
6#if defined(CONFIG_COMPAT)
7
8#include <linux/compat.h>
9
10struct compat_msghdr {
11 compat_uptr_t msg_name; /* void * */
12 compat_int_t msg_namelen;
13 compat_uptr_t msg_iov; /* struct compat_iovec * */
14 compat_size_t msg_iovlen;
15 compat_uptr_t msg_control; /* void * */
16 compat_size_t msg_controllen;
17 compat_uint_t msg_flags;
18};
19
20struct compat_cmsghdr {
21 compat_size_t cmsg_len;
22 compat_int_t cmsg_level;
23 compat_int_t cmsg_type;
24};
25
26#else /* defined(CONFIG_COMPAT) */
27#define compat_msghdr msghdr /* to avoid compiler warnings */
28#endif /* defined(CONFIG_COMPAT) */
29
30extern int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *);
31extern int verify_compat_iovec(struct msghdr *, struct iovec *, char *, int);
32extern asmlinkage long compat_sys_sendmsg(int,struct compat_msghdr __user *,unsigned);
33extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned);
34extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
35extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);
36extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, unsigned char *,
37 int);
38
39#endif /* NET_COMPAT_H */
diff --git a/include/net/datalink.h b/include/net/datalink.h
new file mode 100644
index 000000000000..5797ba3d2eb5
--- /dev/null
+++ b/include/net/datalink.h
@@ -0,0 +1,18 @@
1#ifndef _NET_INET_DATALINK_H_
2#define _NET_INET_DATALINK_H_
3
4struct datalink_proto {
5 unsigned char type[8];
6
7 struct llc_sap *sap;
8
9 unsigned short header_length;
10
11 int (*rcvfunc)(struct sk_buff *, struct net_device *,
12 struct packet_type *);
13 int (*request)(struct datalink_proto *, struct sk_buff *,
14 unsigned char *);
15 struct list_head node;
16};
17
18#endif
diff --git a/include/net/dn.h b/include/net/dn.h
new file mode 100644
index 000000000000..5551c46db397
--- /dev/null
+++ b/include/net/dn.h
@@ -0,0 +1,236 @@
1#ifndef _NET_DN_H
2#define _NET_DN_H
3
4#include <linux/dn.h>
5#include <net/sock.h>
6#include <asm/byteorder.h>
7
8typedef unsigned short dn_address;
9
10#define dn_ntohs(x) le16_to_cpu((unsigned short)(x))
11#define dn_htons(x) cpu_to_le16((unsigned short)(x))
12
13struct dn_scp /* Session Control Port */
14{
15 unsigned char state;
16#define DN_O 1 /* Open */
17#define DN_CR 2 /* Connect Receive */
18#define DN_DR 3 /* Disconnect Reject */
19#define DN_DRC 4 /* Discon. Rej. Complete*/
20#define DN_CC 5 /* Connect Confirm */
21#define DN_CI 6 /* Connect Initiate */
22#define DN_NR 7 /* No resources */
23#define DN_NC 8 /* No communication */
24#define DN_CD 9 /* Connect Delivery */
25#define DN_RJ 10 /* Rejected */
26#define DN_RUN 11 /* Running */
27#define DN_DI 12 /* Disconnect Initiate */
28#define DN_DIC 13 /* Disconnect Complete */
29#define DN_DN 14 /* Disconnect Notificat */
30#define DN_CL 15 /* Closed */
31#define DN_CN 16 /* Closed Notification */
32
33 unsigned short addrloc;
34 unsigned short addrrem;
35 unsigned short numdat;
36 unsigned short numoth;
37 unsigned short numoth_rcv;
38 unsigned short numdat_rcv;
39 unsigned short ackxmt_dat;
40 unsigned short ackxmt_oth;
41 unsigned short ackrcv_dat;
42 unsigned short ackrcv_oth;
43 unsigned char flowrem_sw;
44 unsigned char flowloc_sw;
45#define DN_SEND 2
46#define DN_DONTSEND 1
47#define DN_NOCHANGE 0
48 unsigned short flowrem_dat;
49 unsigned short flowrem_oth;
50 unsigned short flowloc_dat;
51 unsigned short flowloc_oth;
52 unsigned char services_rem;
53 unsigned char services_loc;
54 unsigned char info_rem;
55 unsigned char info_loc;
56
57 unsigned short segsize_rem;
58 unsigned short segsize_loc;
59
60 unsigned char nonagle;
61 unsigned char multi_ireq;
62 unsigned char accept_mode;
63 unsigned long seg_total; /* Running total of current segment */
64
65 struct optdata_dn conndata_in;
66 struct optdata_dn conndata_out;
67 struct optdata_dn discdata_in;
68 struct optdata_dn discdata_out;
69 struct accessdata_dn accessdata;
70
71 struct sockaddr_dn addr; /* Local address */
72 struct sockaddr_dn peer; /* Remote address */
73
74 /*
75 * In this case the RTT estimation is not specified in the
76 * docs, nor is any back off algorithm. Here we follow well
77 * known tcp algorithms with a few small variations.
78 *
79 * snd_window: Max number of packets we send before we wait for
80 * an ack to come back. This will become part of a
81 * more complicated scheme when we support flow
82 * control.
83 *
84 * nsp_srtt: Round-Trip-Time (x8) in jiffies. This is a rolling
85 * average.
86 * nsp_rttvar: Round-Trip-Time-Varience (x4) in jiffies. This is the
87 * varience of the smoothed average (but calculated in
88 * a simpler way than for normal statistical varience
89 * calculations).
90 *
91 * nsp_rxtshift: Backoff counter. Value is zero normally, each time
92 * a packet is lost is increases by one until an ack
93 * is received. Its used to index an array of backoff
94 * multipliers.
95 */
96#define NSP_MIN_WINDOW 1
97#define NSP_MAX_WINDOW (0x07fe)
98 unsigned long max_window;
99 unsigned long snd_window;
100#define NSP_INITIAL_SRTT (HZ)
101 unsigned long nsp_srtt;
102#define NSP_INITIAL_RTTVAR (HZ*3)
103 unsigned long nsp_rttvar;
104#define NSP_MAXRXTSHIFT 12
105 unsigned long nsp_rxtshift;
106
107 /*
108 * Output queues, one for data, one for otherdata/linkservice
109 */
110 struct sk_buff_head data_xmit_queue;
111 struct sk_buff_head other_xmit_queue;
112
113 /*
114 * Input queue for other data
115 */
116 struct sk_buff_head other_receive_queue;
117 int other_report;
118
119 /*
120 * Stuff to do with the slow timer
121 */
122 unsigned long stamp; /* time of last transmit */
123 unsigned long persist;
124 int (*persist_fxn)(struct sock *sk);
125 unsigned long keepalive;
126 void (*keepalive_fxn)(struct sock *sk);
127
128 /*
129 * This stuff is for the fast timer for delayed acks
130 */
131 struct timer_list delack_timer;
132 int delack_pending;
133 void (*delack_fxn)(struct sock *sk);
134
135};
136
137static inline struct dn_scp *DN_SK(struct sock *sk)
138{
139 return (struct dn_scp *)(sk + 1);
140}
141
142/*
143 * src,dst : Source and Destination DECnet addresses
144 * hops : Number of hops through the network
145 * dst_port, src_port : NSP port numbers
146 * services, info : Useful data extracted from conninit messages
147 * rt_flags : Routing flags byte
148 * nsp_flags : NSP layer flags byte
149 * segsize : Size of segment
150 * segnum : Number, for data, otherdata and linkservice
151 * xmit_count : Number of times we've transmitted this skb
152 * stamp : Time stamp of most recent transmission, used in RTT calculations
153 * iif: Input interface number
154 *
155 * As a general policy, this structure keeps all addresses in network
156 * byte order, and all else in host byte order. Thus dst, src, dst_port
157 * and src_port are in network order. All else is in host order.
158 *
159 */
160#define DN_SKB_CB(skb) ((struct dn_skb_cb *)(skb)->cb)
161struct dn_skb_cb {
162 unsigned short dst;
163 unsigned short src;
164 unsigned short hops;
165 unsigned short dst_port;
166 unsigned short src_port;
167 unsigned char services;
168 unsigned char info;
169 unsigned char rt_flags;
170 unsigned char nsp_flags;
171 unsigned short segsize;
172 unsigned short segnum;
173 unsigned short xmit_count;
174 unsigned long stamp;
175 int iif;
176};
177
178static inline dn_address dn_eth2dn(unsigned char *ethaddr)
179{
180 return ethaddr[4] | (ethaddr[5] << 8);
181}
182
183static inline dn_address dn_saddr2dn(struct sockaddr_dn *saddr)
184{
185 return *(dn_address *)saddr->sdn_nodeaddr;
186}
187
188static inline void dn_dn2eth(unsigned char *ethaddr, dn_address addr)
189{
190 ethaddr[0] = 0xAA;
191 ethaddr[1] = 0x00;
192 ethaddr[2] = 0x04;
193 ethaddr[3] = 0x00;
194 ethaddr[4] = (unsigned char)(addr & 0xff);
195 ethaddr[5] = (unsigned char)(addr >> 8);
196}
197
198static inline void dn_sk_ports_copy(struct flowi *fl, struct dn_scp *scp)
199{
200 fl->uli_u.dnports.sport = scp->addrloc;
201 fl->uli_u.dnports.dport = scp->addrrem;
202 fl->uli_u.dnports.objnum = scp->addr.sdn_objnum;
203 if (fl->uli_u.dnports.objnum == 0) {
204 fl->uli_u.dnports.objnamel = scp->addr.sdn_objnamel;
205 memcpy(fl->uli_u.dnports.objname, scp->addr.sdn_objname, 16);
206 }
207}
208
209extern unsigned dn_mss_from_pmtu(struct net_device *dev, int mtu);
210
211#define DN_MENUVER_ACC 0x01
212#define DN_MENUVER_USR 0x02
213#define DN_MENUVER_PRX 0x04
214#define DN_MENUVER_UIC 0x08
215
216extern struct sock *dn_sklist_find_listener(struct sockaddr_dn *addr);
217extern struct sock *dn_find_by_skb(struct sk_buff *skb);
218#define DN_ASCBUF_LEN 9
219extern char *dn_addr2asc(dn_address, char *);
220extern int dn_destroy_timer(struct sock *sk);
221
222extern int dn_sockaddr2username(struct sockaddr_dn *addr, unsigned char *buf, unsigned char type);
223extern int dn_username2sockaddr(unsigned char *data, int len, struct sockaddr_dn *addr, unsigned char *type);
224
225extern void dn_start_slow_timer(struct sock *sk);
226extern void dn_stop_slow_timer(struct sock *sk);
227
228extern dn_address decnet_address;
229extern int decnet_debug_level;
230extern int decnet_time_wait;
231extern int decnet_dn_count;
232extern int decnet_di_count;
233extern int decnet_dr_count;
234extern int decnet_no_fc_max_cwnd;
235
236#endif /* _NET_DN_H */
diff --git a/include/net/dn_dev.h b/include/net/dn_dev.h
new file mode 100644
index 000000000000..86e8e86e624a
--- /dev/null
+++ b/include/net/dn_dev.h
@@ -0,0 +1,194 @@
1#ifndef _NET_DN_DEV_H
2#define _NET_DN_DEV_H
3
4
5struct dn_dev;
6
7struct dn_ifaddr {
8 struct dn_ifaddr *ifa_next;
9 struct dn_dev *ifa_dev;
10 dn_address ifa_local;
11 dn_address ifa_address;
12 unsigned char ifa_flags;
13 unsigned char ifa_scope;
14 char ifa_label[IFNAMSIZ];
15};
16
17#define DN_DEV_S_RU 0 /* Run - working normally */
18#define DN_DEV_S_CR 1 /* Circuit Rejected */
19#define DN_DEV_S_DS 2 /* Data Link Start */
20#define DN_DEV_S_RI 3 /* Routing Layer Initialize */
21#define DN_DEV_S_RV 4 /* Routing Layer Verify */
22#define DN_DEV_S_RC 5 /* Routing Layer Complete */
23#define DN_DEV_S_OF 6 /* Off */
24#define DN_DEV_S_HA 7 /* Halt */
25
26
27/*
28 * The dn_dev_parms structure contains the set of parameters
29 * for each device (hence inclusion in the dn_dev structure)
30 * and an array is used to store the default types of supported
31 * device (in dn_dev.c).
32 *
33 * The type field matches the ARPHRD_ constants and is used in
34 * searching the list for supported devices when new devices
35 * come up.
36 *
37 * The mode field is used to find out if a device is broadcast,
38 * multipoint, or pointopoint. Please note that DECnet thinks
39 * different ways about devices to the rest of the kernel
40 * so the normal IFF_xxx flags are invalid here. For devices
41 * which can be any combination of the previously mentioned
42 * attributes, you can set this on a per device basis by
43 * installing an up() routine.
44 *
45 * The device state field, defines the initial state in which the
46 * device will come up. In the dn_dev structure, it is the actual
47 * state.
48 *
49 * Things have changed here. I've killed timer1 since it's a user space
50 * issue for a user space routing deamon to sort out. The kernel does
51 * not need to be bothered with it.
52 *
53 * Timers:
54 * t2 - Rate limit timer, min time between routing and hello messages
55 * t3 - Hello timer, send hello messages when it expires
56 *
57 * Callbacks:
58 * up() - Called to initialize device, return value can veto use of
59 * device with DECnet.
60 * down() - Called to turn device off when it goes down
61 * timer3() - Called once for each ifaddr when timer 3 goes off
62 *
63 * sysctl - Hook for sysctl things
64 *
65 */
66struct dn_dev_parms {
67 int type; /* ARPHRD_xxx */
68 int mode; /* Broadcast, Unicast, Mulitpoint */
69#define DN_DEV_BCAST 1
70#define DN_DEV_UCAST 2
71#define DN_DEV_MPOINT 4
72 int state; /* Initial state */
73 int forwarding; /* 0=EndNode, 1=L1Router, 2=L2Router */
74 unsigned long t2; /* Default value of t2 */
75 unsigned long t3; /* Default value of t3 */
76 int priority; /* Priority to be a router */
77 char *name; /* Name for sysctl */
78 int ctl_name; /* Index for sysctl */
79 int (*up)(struct net_device *);
80 void (*down)(struct net_device *);
81 void (*timer3)(struct net_device *, struct dn_ifaddr *ifa);
82 void *sysctl;
83};
84
85
86struct dn_dev {
87 struct dn_ifaddr *ifa_list;
88 struct net_device *dev;
89 struct dn_dev_parms parms;
90 char use_long;
91 struct timer_list timer;
92 unsigned long t3;
93 struct neigh_parms *neigh_parms;
94 unsigned char addr[ETH_ALEN];
95 struct neighbour *router; /* Default router on circuit */
96 struct neighbour *peer; /* Peer on pointopoint links */
97 unsigned long uptime; /* Time device went up in jiffies */
98};
99
100struct dn_short_packet
101{
102 unsigned char msgflg __attribute__((packed));
103 unsigned short dstnode __attribute__((packed));
104 unsigned short srcnode __attribute__((packed));
105 unsigned char forward __attribute__((packed));
106};
107
108struct dn_long_packet
109{
110 unsigned char msgflg __attribute__((packed));
111 unsigned char d_area __attribute__((packed));
112 unsigned char d_subarea __attribute__((packed));
113 unsigned char d_id[6] __attribute__((packed));
114 unsigned char s_area __attribute__((packed));
115 unsigned char s_subarea __attribute__((packed));
116 unsigned char s_id[6] __attribute__((packed));
117 unsigned char nl2 __attribute__((packed));
118 unsigned char visit_ct __attribute__((packed));
119 unsigned char s_class __attribute__((packed));
120 unsigned char pt __attribute__((packed));
121};
122
123/*------------------------- DRP - Routing messages ---------------------*/
124
125struct endnode_hello_message
126{
127 unsigned char msgflg __attribute__((packed));
128 unsigned char tiver[3] __attribute__((packed));
129 unsigned char id[6] __attribute__((packed));
130 unsigned char iinfo __attribute__((packed));
131 unsigned short blksize __attribute__((packed));
132 unsigned char area __attribute__((packed));
133 unsigned char seed[8] __attribute__((packed));
134 unsigned char neighbor[6] __attribute__((packed));
135 unsigned short timer __attribute__((packed));
136 unsigned char mpd __attribute__((packed));
137 unsigned char datalen __attribute__((packed));
138 unsigned char data[2] __attribute__((packed));
139};
140
141struct rtnode_hello_message
142{
143 unsigned char msgflg __attribute__((packed));
144 unsigned char tiver[3] __attribute__((packed));
145 unsigned char id[6] __attribute__((packed));
146 unsigned char iinfo __attribute__((packed));
147 unsigned short blksize __attribute__((packed));
148 unsigned char priority __attribute__((packed));
149 unsigned char area __attribute__((packed));
150 unsigned short timer __attribute__((packed));
151 unsigned char mpd __attribute__((packed));
152};
153
154
155extern void dn_dev_init(void);
156extern void dn_dev_cleanup(void);
157
158extern int dn_dev_ioctl(unsigned int cmd, void __user *arg);
159
160extern void dn_dev_devices_off(void);
161extern void dn_dev_devices_on(void);
162
163extern void dn_dev_init_pkt(struct sk_buff *skb);
164extern void dn_dev_veri_pkt(struct sk_buff *skb);
165extern void dn_dev_hello(struct sk_buff *skb);
166
167extern void dn_dev_up(struct net_device *);
168extern void dn_dev_down(struct net_device *);
169
170extern int dn_dev_set_default(struct net_device *dev, int force);
171extern struct net_device *dn_dev_get_default(void);
172extern int dn_dev_bind_default(dn_address *addr);
173
174extern int register_dnaddr_notifier(struct notifier_block *nb);
175extern int unregister_dnaddr_notifier(struct notifier_block *nb);
176
177static inline int dn_dev_islocal(struct net_device *dev, dn_address addr)
178{
179 struct dn_dev *dn_db = dev->dn_ptr;
180 struct dn_ifaddr *ifa;
181
182 if (dn_db == NULL) {
183 printk(KERN_DEBUG "dn_dev_islocal: Called for non DECnet device\n");
184 return 0;
185 }
186
187 for(ifa = dn_db->ifa_list; ifa; ifa = ifa->ifa_next)
188 if ((addr ^ ifa->ifa_local) == 0)
189 return 1;
190
191 return 0;
192}
193
194#endif /* _NET_DN_DEV_H */
diff --git a/include/net/dn_fib.h b/include/net/dn_fib.h
new file mode 100644
index 000000000000..cd3c96d9601b
--- /dev/null
+++ b/include/net/dn_fib.h
@@ -0,0 +1,204 @@
1#ifndef _NET_DN_FIB_H
2#define _NET_DN_FIB_H
3
4/* WARNING: The ordering of these elements must match ordering
5 * of RTA_* rtnetlink attribute numbers.
6 */
7struct dn_kern_rta
8{
9 void *rta_dst;
10 void *rta_src;
11 int *rta_iif;
12 int *rta_oif;
13 void *rta_gw;
14 u32 *rta_priority;
15 void *rta_prefsrc;
16 struct rtattr *rta_mx;
17 struct rtattr *rta_mp;
18 unsigned char *rta_protoinfo;
19 u32 *rta_flow;
20 struct rta_cacheinfo *rta_ci;
21 struct rta_session *rta_sess;
22};
23
24struct dn_fib_res {
25 struct dn_fib_rule *r;
26 struct dn_fib_info *fi;
27 unsigned char prefixlen;
28 unsigned char nh_sel;
29 unsigned char type;
30 unsigned char scope;
31};
32
33struct dn_fib_nh {
34 struct net_device *nh_dev;
35 unsigned nh_flags;
36 unsigned char nh_scope;
37 int nh_weight;
38 int nh_power;
39 int nh_oif;
40 u32 nh_gw;
41};
42
43struct dn_fib_info {
44 struct dn_fib_info *fib_next;
45 struct dn_fib_info *fib_prev;
46 int fib_treeref;
47 atomic_t fib_clntref;
48 int fib_dead;
49 unsigned fib_flags;
50 int fib_protocol;
51 dn_address fib_prefsrc;
52 __u32 fib_priority;
53 __u32 fib_metrics[RTAX_MAX];
54#define dn_fib_mtu fib_metrics[RTAX_MTU-1]
55#define dn_fib_window fib_metrics[RTAX_WINDOW-1]
56#define dn_fib_rtt fib_metrics[RTAX_RTT-1]
57#define dn_fib_advmss fib_metrics[RTAX_ADVMSS-1]
58 int fib_nhs;
59 int fib_power;
60 struct dn_fib_nh fib_nh[0];
61#define dn_fib_dev fib_nh[0].nh_dev
62};
63
64
65#define DN_FIB_RES_RESET(res) ((res).nh_sel = 0)
66#define DN_FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
67
68#define DN_FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __dn_fib_res_prefsrc(&res))
69#define DN_FIB_RES_GW(res) (DN_FIB_RES_NH(res).nh_gw)
70#define DN_FIB_RES_DEV(res) (DN_FIB_RES_NH(res).nh_dev)
71#define DN_FIB_RES_OIF(res) (DN_FIB_RES_NH(res).nh_oif)
72
73typedef struct {
74 u16 datum;
75} dn_fib_key_t;
76
77typedef struct {
78 u16 datum;
79} dn_fib_hash_t;
80
81typedef struct {
82 u16 datum;
83} dn_fib_idx_t;
84
85struct dn_fib_node {
86 struct dn_fib_node *fn_next;
87 struct dn_fib_info *fn_info;
88#define DN_FIB_INFO(f) ((f)->fn_info)
89 dn_fib_key_t fn_key;
90 u8 fn_type;
91 u8 fn_scope;
92 u8 fn_state;
93};
94
95
96struct dn_fib_table {
97 int n;
98
99 int (*insert)(struct dn_fib_table *t, struct rtmsg *r,
100 struct dn_kern_rta *rta, struct nlmsghdr *n,
101 struct netlink_skb_parms *req);
102 int (*delete)(struct dn_fib_table *t, struct rtmsg *r,
103 struct dn_kern_rta *rta, struct nlmsghdr *n,
104 struct netlink_skb_parms *req);
105 int (*lookup)(struct dn_fib_table *t, const struct flowi *fl,
106 struct dn_fib_res *res);
107 int (*flush)(struct dn_fib_table *t);
108 int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb);
109
110 unsigned char data[0];
111};
112
113#ifdef CONFIG_DECNET_ROUTER
114/*
115 * dn_fib.c
116 */
117extern void dn_fib_init(void);
118extern void dn_fib_cleanup(void);
119
120extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd,
121 unsigned long arg);
122extern struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r,
123 struct dn_kern_rta *rta,
124 const struct nlmsghdr *nlh, int *errp);
125extern int dn_fib_semantic_match(int type, struct dn_fib_info *fi,
126 const struct flowi *fl,
127 struct dn_fib_res *res);
128extern void dn_fib_release_info(struct dn_fib_info *fi);
129extern u16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type);
130extern void dn_fib_flush(void);
131extern void dn_fib_select_multipath(const struct flowi *fl,
132 struct dn_fib_res *res);
133extern int dn_fib_sync_down(dn_address local, struct net_device *dev,
134 int force);
135extern int dn_fib_sync_up(struct net_device *dev);
136
137/*
138 * dn_tables.c
139 */
140extern struct dn_fib_table *dn_fib_get_table(int n, int creat);
141extern struct dn_fib_table *dn_fib_empty_table(void);
142extern void dn_fib_table_init(void);
143extern void dn_fib_table_cleanup(void);
144
145/*
146 * dn_rules.c
147 */
148extern void dn_fib_rules_init(void);
149extern void dn_fib_rules_cleanup(void);
150extern void dn_fib_rule_put(struct dn_fib_rule *);
151extern __u16 dn_fib_rules_policy(__u16 saddr, struct dn_fib_res *res, unsigned *flags);
152extern unsigned dnet_addr_type(__u16 addr);
153extern int dn_fib_lookup(const struct flowi *fl, struct dn_fib_res *res);
154
155/*
156 * rtnetlink interface
157 */
158extern int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
159extern int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
160extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
161
162extern int dn_fib_rtm_delrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
163extern int dn_fib_rtm_newrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
164extern int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb);
165
166extern void dn_fib_free_info(struct dn_fib_info *fi);
167
168static inline void dn_fib_info_put(struct dn_fib_info *fi)
169{
170 if (atomic_dec_and_test(&fi->fib_clntref))
171 dn_fib_free_info(fi);
172}
173
174static inline void dn_fib_res_put(struct dn_fib_res *res)
175{
176 if (res->fi)
177 dn_fib_info_put(res->fi);
178 if (res->r)
179 dn_fib_rule_put(res->r);
180}
181
182extern struct dn_fib_table *dn_fib_tables[];
183
184#else /* Endnode */
185
186#define dn_fib_init() do { } while(0)
187#define dn_fib_cleanup() do { } while(0)
188
189#define dn_fib_lookup(fl, res) (-ESRCH)
190#define dn_fib_info_put(fi) do { } while(0)
191#define dn_fib_select_multipath(fl, res) do { } while(0)
192#define dn_fib_rules_policy(saddr,res,flags) (0)
193#define dn_fib_res_put(res) do { } while(0)
194
195#endif /* CONFIG_DECNET_ROUTER */
196
197static inline u16 dnet_make_mask(int n)
198{
199 if (n)
200 return htons(~((1<<(16-n))-1));
201 return 0;
202}
203
204#endif /* _NET_DN_FIB_H */
diff --git a/include/net/dn_neigh.h b/include/net/dn_neigh.h
new file mode 100644
index 000000000000..4b1eb038d637
--- /dev/null
+++ b/include/net/dn_neigh.h
@@ -0,0 +1,28 @@
1#ifndef _NET_DN_NEIGH_H
2#define _NET_DN_NEIGH_H
3
4/*
5 * The position of the first two fields of
6 * this structure are critical - SJW
7 */
8struct dn_neigh {
9 struct neighbour n;
10 dn_address addr;
11 unsigned long flags;
12#define DN_NDFLAG_R1 0x0001 /* Router L1 */
13#define DN_NDFLAG_R2 0x0002 /* Router L2 */
14#define DN_NDFLAG_P3 0x0004 /* Phase III Node */
15 unsigned long blksize;
16 unsigned char priority;
17};
18
19extern void dn_neigh_init(void);
20extern void dn_neigh_cleanup(void);
21extern int dn_neigh_router_hello(struct sk_buff *skb);
22extern int dn_neigh_endnode_hello(struct sk_buff *skb);
23extern void dn_neigh_pointopoint_hello(struct sk_buff *skb);
24extern int dn_neigh_elist(struct net_device *dev, unsigned char *ptr, int n);
25
26extern struct neigh_table dn_neigh_table;
27
28#endif /* _NET_DN_NEIGH_H */
diff --git a/include/net/dn_nsp.h b/include/net/dn_nsp.h
new file mode 100644
index 000000000000..6bbeafa73e8b
--- /dev/null
+++ b/include/net/dn_nsp.h
@@ -0,0 +1,209 @@
1#ifndef _NET_DN_NSP_H
2#define _NET_DN_NSP_H
3/******************************************************************************
4 (c) 1995-1998 E.M. Serrat emserrat@geocities.com
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15*******************************************************************************/
16/* dn_nsp.c functions prototyping */
17
18extern void dn_nsp_send_data_ack(struct sock *sk);
19extern void dn_nsp_send_oth_ack(struct sock *sk);
20extern void dn_nsp_delayed_ack(struct sock *sk);
21extern void dn_send_conn_ack(struct sock *sk);
22extern void dn_send_conn_conf(struct sock *sk, int gfp);
23extern void dn_nsp_send_disc(struct sock *sk, unsigned char type,
24 unsigned short reason, int gfp);
25extern void dn_nsp_return_disc(struct sk_buff *skb, unsigned char type,
26 unsigned short reason);
27extern void dn_nsp_send_link(struct sock *sk, unsigned char lsflags, char fcval);
28extern void dn_nsp_send_conninit(struct sock *sk, unsigned char flags);
29
30extern void dn_nsp_output(struct sock *sk);
31extern int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff_head *q, unsigned short acknum);
32extern void dn_nsp_queue_xmit(struct sock *sk, struct sk_buff *skb, int gfp, int oob);
33extern unsigned long dn_nsp_persist(struct sock *sk);
34extern int dn_nsp_xmit_timeout(struct sock *sk);
35
36extern int dn_nsp_rx(struct sk_buff *);
37extern int dn_nsp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
38
39extern struct sk_buff *dn_alloc_skb(struct sock *sk, int size, int pri);
40extern struct sk_buff *dn_alloc_send_skb(struct sock *sk, size_t *size, int noblock, long timeo, int *err);
41
42#define NSP_REASON_OK 0 /* No error */
43#define NSP_REASON_NR 1 /* No resources */
44#define NSP_REASON_UN 2 /* Unrecognised node name */
45#define NSP_REASON_SD 3 /* Node shutting down */
46#define NSP_REASON_ID 4 /* Invalid destination end user */
47#define NSP_REASON_ER 5 /* End user lacks resources */
48#define NSP_REASON_OB 6 /* Object too busy */
49#define NSP_REASON_US 7 /* Unspecified error */
50#define NSP_REASON_TP 8 /* Third-Party abort */
51#define NSP_REASON_EA 9 /* End user has aborted the link */
52#define NSP_REASON_IF 10 /* Invalid node name format */
53#define NSP_REASON_LS 11 /* Local node shutdown */
54#define NSP_REASON_LL 32 /* Node lacks logical-link resources */
55#define NSP_REASON_LE 33 /* End user lacks logical-link resources */
56#define NSP_REASON_UR 34 /* Unacceptable RQSTRID or PASSWORD field */
57#define NSP_REASON_UA 36 /* Unacceptable ACCOUNT field */
58#define NSP_REASON_TM 38 /* End user timed out logical link */
59#define NSP_REASON_NU 39 /* Node unreachable */
60#define NSP_REASON_NL 41 /* No-link message */
61#define NSP_REASON_DC 42 /* Disconnect confirm */
62#define NSP_REASON_IO 43 /* Image data field overflow */
63
64#define NSP_DISCINIT 0x38
65#define NSP_DISCCONF 0x48
66
67/*------------------------- NSP - messages ------------------------------*/
68/* Data Messages */
69/*---------------*/
70
71/* Data Messages (data segment/interrupt/link service) */
72
73struct nsp_data_seg_msg
74{
75 unsigned char msgflg __attribute__((packed));
76 unsigned short dstaddr __attribute__((packed));
77 unsigned short srcaddr __attribute__((packed));
78};
79
80struct nsp_data_opt_msg
81{
82 unsigned short acknum __attribute__((packed));
83 unsigned short segnum __attribute__((packed));
84 unsigned short lsflgs __attribute__((packed));
85};
86
87struct nsp_data_opt_msg1
88{
89 unsigned short acknum __attribute__((packed));
90 unsigned short segnum __attribute__((packed));
91};
92
93
94/* Acknowledgment Message (data/other data) */
95struct nsp_data_ack_msg
96{
97 unsigned char msgflg __attribute__((packed));
98 unsigned short dstaddr __attribute__((packed));
99 unsigned short srcaddr __attribute__((packed));
100 unsigned short acknum __attribute__((packed));
101};
102
103/* Connect Acknowledgment Message */
104struct nsp_conn_ack_msg
105{
106 unsigned char msgflg __attribute__((packed));
107 unsigned short dstaddr __attribute__((packed));
108};
109
110
111/* Connect Initiate/Retransmit Initiate/Connect Confirm */
112struct nsp_conn_init_msg
113{
114 unsigned char msgflg __attribute__((packed));
115#define NSP_CI 0x18 /* Connect Initiate */
116#define NSP_RCI 0x68 /* Retrans. Conn Init */
117 unsigned short dstaddr __attribute__((packed));
118 unsigned short srcaddr __attribute__((packed));
119 unsigned char services __attribute__((packed));
120#define NSP_FC_NONE 0x00 /* Flow Control None */
121#define NSP_FC_SRC 0x04 /* Seg Req. Count */
122#define NSP_FC_SCMC 0x08 /* Sess. Control Mess */
123#define NSP_FC_MASK 0x0c /* FC type mask */
124 unsigned char info __attribute__((packed));
125 unsigned short segsize __attribute__((packed));
126};
127
128/* Disconnect Initiate/Disconnect Confirm */
129struct nsp_disconn_init_msg
130{
131 unsigned char msgflg __attribute__((packed));
132 unsigned short dstaddr __attribute__((packed));
133 unsigned short srcaddr __attribute__((packed));
134 unsigned short reason __attribute__((packed));
135};
136
137
138
139struct srcobj_fmt
140{
141 char format __attribute__((packed));
142 unsigned char task __attribute__((packed));
143 unsigned short grpcode __attribute__((packed));
144 unsigned short usrcode __attribute__((packed));
145 char dlen __attribute__((packed));
146};
147
148/*
149 * A collection of functions for manipulating the sequence
150 * numbers used in NSP. Similar in operation to the functions
151 * of the same name in TCP.
152 */
153static __inline__ int dn_before(unsigned short seq1, unsigned short seq2)
154{
155 seq1 &= 0x0fff;
156 seq2 &= 0x0fff;
157
158 return (int)((seq1 - seq2) & 0x0fff) > 2048;
159}
160
161
162static __inline__ int dn_after(unsigned short seq1, unsigned short seq2)
163{
164 seq1 &= 0x0fff;
165 seq2 &= 0x0fff;
166
167 return (int)((seq2 - seq1) & 0x0fff) > 2048;
168}
169
170static __inline__ int dn_equal(unsigned short seq1, unsigned short seq2)
171{
172 return ((seq1 ^ seq2) & 0x0fff) == 0;
173}
174
175static __inline__ int dn_before_or_equal(unsigned short seq1, unsigned short seq2)
176{
177 return (dn_before(seq1, seq2) || dn_equal(seq1, seq2));
178}
179
180static __inline__ void seq_add(unsigned short *seq, unsigned short off)
181{
182 (*seq) += off;
183 (*seq) &= 0x0fff;
184}
185
186static __inline__ int seq_next(unsigned short seq1, unsigned short seq2)
187{
188 return dn_equal(seq1 + 1, seq2);
189}
190
191/*
192 * Can we delay the ack ?
193 */
194static __inline__ int sendack(unsigned short seq)
195{
196 return (int)((seq & 0x1000) ? 0 : 1);
197}
198
199/*
200 * Is socket congested ?
201 */
202static __inline__ int dn_congested(struct sock *sk)
203{
204 return atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1);
205}
206
207#define DN_MAX_NSP_DATA_HEADER (11)
208
209#endif /* _NET_DN_NSP_H */
diff --git a/include/net/dn_route.h b/include/net/dn_route.h
new file mode 100644
index 000000000000..d084721db198
--- /dev/null
+++ b/include/net/dn_route.h
@@ -0,0 +1,112 @@
1#ifndef _NET_DN_ROUTE_H
2#define _NET_DN_ROUTE_H
3
4/******************************************************************************
5 (c) 1995-1998 E.M. Serrat emserrat@geocities.com
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16*******************************************************************************/
17
18extern struct sk_buff *dn_alloc_skb(struct sock *sk, int size, int pri);
19extern int dn_route_output_sock(struct dst_entry **pprt, struct flowi *, struct sock *sk, int flags);
20extern int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb);
21extern int dn_cache_getroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
22extern void dn_rt_cache_flush(int delay);
23
24/* Masks for flags field */
25#define DN_RT_F_PID 0x07 /* Mask for packet type */
26#define DN_RT_F_PF 0x80 /* Padding Follows */
27#define DN_RT_F_VER 0x40 /* Version =0 discard packet if ==1 */
28#define DN_RT_F_IE 0x20 /* Intra Ethernet, Reserved in short pkt */
29#define DN_RT_F_RTS 0x10 /* Packet is being returned to sender */
30#define DN_RT_F_RQR 0x08 /* Return packet to sender upon non-delivery */
31
32/* Mask for types of routing packets */
33#define DN_RT_PKT_MSK 0x06
34/* Types of routing packets */
35#define DN_RT_PKT_SHORT 0x02 /* Short routing packet */
36#define DN_RT_PKT_LONG 0x06 /* Long routing packet */
37
38/* Mask for control/routing selection */
39#define DN_RT_PKT_CNTL 0x01 /* Set to 1 if a control packet */
40/* Types of control packets */
41#define DN_RT_CNTL_MSK 0x0f /* Mask for control packets */
42#define DN_RT_PKT_INIT 0x01 /* Initialisation packet */
43#define DN_RT_PKT_VERI 0x03 /* Verification Message */
44#define DN_RT_PKT_HELO 0x05 /* Hello and Test Message */
45#define DN_RT_PKT_L1RT 0x07 /* Level 1 Routing Message */
46#define DN_RT_PKT_L2RT 0x09 /* Level 2 Routing Message */
47#define DN_RT_PKT_ERTH 0x0b /* Ethernet Router Hello */
48#define DN_RT_PKT_EEDH 0x0d /* Ethernet EndNode Hello */
49
50/* Values for info field in hello message */
51#define DN_RT_INFO_TYPE 0x03 /* Type mask */
52#define DN_RT_INFO_L1RT 0x02 /* L1 Router */
53#define DN_RT_INFO_L2RT 0x01 /* L2 Router */
54#define DN_RT_INFO_ENDN 0x03 /* EndNode */
55#define DN_RT_INFO_VERI 0x04 /* Verification Reqd. */
56#define DN_RT_INFO_RJCT 0x08 /* Reject Flag, Reserved */
57#define DN_RT_INFO_VFLD 0x10 /* Verification Failed, Reserved */
58#define DN_RT_INFO_NOML 0x20 /* No Multicast traffic accepted */
59#define DN_RT_INFO_BLKR 0x40 /* Blocking Requested */
60
61/*
62 * The fl structure is what we used to look up the route.
63 * The rt_saddr & rt_daddr entries are the same as key.saddr & key.daddr
64 * except for local input routes, where the rt_saddr = fl.fld_dst and
65 * rt_daddr = fl.fld_src to allow the route to be used for returning
66 * packets to the originating host.
67 */
68struct dn_route {
69 union {
70 struct dst_entry dst;
71 struct dn_route *rt_next;
72 } u;
73
74 __u16 rt_saddr;
75 __u16 rt_daddr;
76 __u16 rt_gateway;
77 __u16 rt_local_src; /* Source used for forwarding packets */
78 __u16 rt_src_map;
79 __u16 rt_dst_map;
80
81 unsigned rt_flags;
82 unsigned rt_type;
83
84 struct flowi fl;
85};
86
87extern void dn_route_init(void);
88extern void dn_route_cleanup(void);
89
90#include <net/sock.h>
91#include <linux/if_arp.h>
92
93static inline void dn_rt_send(struct sk_buff *skb)
94{
95 dev_queue_xmit(skb);
96}
97
98static inline void dn_rt_finish_output(struct sk_buff *skb, char *dst, char *src)
99{
100 struct net_device *dev = skb->dev;
101
102 if ((dev->type != ARPHRD_ETHER) && (dev->type != ARPHRD_LOOPBACK))
103 dst = NULL;
104
105 if (!dev->hard_header || (dev->hard_header(skb, dev, ETH_P_DNA_RT,
106 dst, src, skb->len) >= 0))
107 dn_rt_send(skb);
108 else
109 kfree_skb(skb);
110}
111
112#endif /* _NET_DN_ROUTE_H */
diff --git a/include/net/dsfield.h b/include/net/dsfield.h
new file mode 100644
index 000000000000..a79c9e075f7f
--- /dev/null
+++ b/include/net/dsfield.h
@@ -0,0 +1,54 @@
1/* include/net/dsfield.h - Manipulation of the Differentiated Services field */
2
3/* Written 1998-2000 by Werner Almesberger, EPFL ICA */
4
5
6#ifndef __NET_DSFIELD_H
7#define __NET_DSFIELD_H
8
9#include <linux/types.h>
10#include <linux/ip.h>
11#include <linux/ipv6.h>
12#include <asm/byteorder.h>
13
14
15static inline __u8 ipv4_get_dsfield(struct iphdr *iph)
16{
17 return iph->tos;
18}
19
20
21static inline __u8 ipv6_get_dsfield(struct ipv6hdr *ipv6h)
22{
23 return ntohs(*(__u16 *) ipv6h) >> 4;
24}
25
26
27static inline void ipv4_change_dsfield(struct iphdr *iph,__u8 mask,
28 __u8 value)
29{
30 __u32 check = ntohs(iph->check);
31 __u8 dsfield;
32
33 dsfield = (iph->tos & mask) | value;
34 check += iph->tos;
35 if ((check+1) >> 16) check = (check+1) & 0xffff;
36 check -= dsfield;
37 check += check >> 16; /* adjust carry */
38 iph->check = htons(check);
39 iph->tos = dsfield;
40}
41
42
43static inline void ipv6_change_dsfield(struct ipv6hdr *ipv6h,__u8 mask,
44 __u8 value)
45{
46 __u16 tmp;
47
48 tmp = ntohs(*(__u16 *) ipv6h);
49 tmp = (tmp & ((mask << 4) | 0xf00f)) | (value << 4);
50 *(__u16 *) ipv6h = htons(tmp);
51}
52
53
54#endif
diff --git a/include/net/dst.h b/include/net/dst.h
new file mode 100644
index 000000000000..50adc9136530
--- /dev/null
+++ b/include/net/dst.h
@@ -0,0 +1,279 @@
1/*
2 * net/dst.h Protocol independent destination cache definitions.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 */
7
8#ifndef _NET_DST_H
9#define _NET_DST_H
10
11#include <linux/config.h>
12#include <linux/rtnetlink.h>
13#include <linux/rcupdate.h>
14#include <linux/jiffies.h>
15#include <net/neighbour.h>
16#include <asm/processor.h>
17
18/*
19 * 0 - no debugging messages
20 * 1 - rare events and bugs (default)
21 * 2 - trace mode.
22 */
23#define RT_CACHE_DEBUG 0
24
25#define DST_GC_MIN (HZ/10)
26#define DST_GC_INC (HZ/2)
27#define DST_GC_MAX (120*HZ)
28
29/* Each dst_entry has reference count and sits in some parent list(s).
30 * When it is removed from parent list, it is "freed" (dst_free).
31 * After this it enters dead state (dst->obsolete > 0) and if its refcnt
32 * is zero, it can be destroyed immediately, otherwise it is added
33 * to gc list and garbage collector periodically checks the refcnt.
34 */
35
36struct sk_buff;
37
38struct dst_entry
39{
40 struct dst_entry *next;
41 atomic_t __refcnt; /* client references */
42 int __use;
43 struct dst_entry *child;
44 struct net_device *dev;
45 int obsolete;
46 int flags;
47#define DST_HOST 1
48#define DST_NOXFRM 2
49#define DST_NOPOLICY 4
50#define DST_NOHASH 8
51#define DST_BALANCED 0x10
52 unsigned long lastuse;
53 unsigned long expires;
54
55 unsigned short header_len; /* more space at head required */
56 unsigned short trailer_len; /* space to reserve at tail */
57
58 u32 metrics[RTAX_MAX];
59 struct dst_entry *path;
60
61 unsigned long rate_last; /* rate limiting for ICMP */
62 unsigned long rate_tokens;
63
64 int error;
65
66 struct neighbour *neighbour;
67 struct hh_cache *hh;
68 struct xfrm_state *xfrm;
69
70 int (*input)(struct sk_buff*);
71 int (*output)(struct sk_buff*);
72
73#ifdef CONFIG_NET_CLS_ROUTE
74 __u32 tclassid;
75#endif
76
77 struct dst_ops *ops;
78 struct rcu_head rcu_head;
79
80 char info[0];
81};
82
83
84struct dst_ops
85{
86 unsigned short family;
87 unsigned short protocol;
88 unsigned gc_thresh;
89
90 int (*gc)(void);
91 struct dst_entry * (*check)(struct dst_entry *, __u32 cookie);
92 void (*destroy)(struct dst_entry *);
93 void (*ifdown)(struct dst_entry *,
94 struct net_device *dev, int how);
95 struct dst_entry * (*negative_advice)(struct dst_entry *);
96 void (*link_failure)(struct sk_buff *);
97 void (*update_pmtu)(struct dst_entry *dst, u32 mtu);
98 int (*get_mss)(struct dst_entry *dst, u32 mtu);
99 int entry_size;
100
101 atomic_t entries;
102 kmem_cache_t *kmem_cachep;
103};
104
105#ifdef __KERNEL__
106
107static inline u32
108dst_metric(const struct dst_entry *dst, int metric)
109{
110 return dst->metrics[metric-1];
111}
112
113static inline u32 dst_mtu(const struct dst_entry *dst)
114{
115 u32 mtu = dst_metric(dst, RTAX_MTU);
116 /*
117 * Alexey put it here, so ask him about it :)
118 */
119 barrier();
120 return mtu;
121}
122
123static inline u32
124dst_allfrag(const struct dst_entry *dst)
125{
126 int ret = dst_metric(dst, RTAX_FEATURES) & RTAX_FEATURE_ALLFRAG;
127 /* Yes, _exactly_. This is paranoia. */
128 barrier();
129 return ret;
130}
131
132static inline int
133dst_metric_locked(struct dst_entry *dst, int metric)
134{
135 return dst_metric(dst, RTAX_LOCK) & (1<<metric);
136}
137
138static inline void dst_hold(struct dst_entry * dst)
139{
140 atomic_inc(&dst->__refcnt);
141}
142
143static inline
144struct dst_entry * dst_clone(struct dst_entry * dst)
145{
146 if (dst)
147 atomic_inc(&dst->__refcnt);
148 return dst;
149}
150
151static inline
152void dst_release(struct dst_entry * dst)
153{
154 if (dst) {
155 WARN_ON(atomic_read(&dst->__refcnt) < 1);
156 smp_mb__before_atomic_dec();
157 atomic_dec(&dst->__refcnt);
158 }
159}
160
161/* Children define the path of the packet through the
162 * Linux networking. Thus, destinations are stackable.
163 */
164
165static inline struct dst_entry *dst_pop(struct dst_entry *dst)
166{
167 struct dst_entry *child = dst_clone(dst->child);
168
169 dst_release(dst);
170 return child;
171}
172
173extern void * dst_alloc(struct dst_ops * ops);
174extern void __dst_free(struct dst_entry * dst);
175extern struct dst_entry *dst_destroy(struct dst_entry * dst);
176
177static inline void dst_free(struct dst_entry * dst)
178{
179 if (dst->obsolete > 1)
180 return;
181 if (!atomic_read(&dst->__refcnt)) {
182 dst = dst_destroy(dst);
183 if (!dst)
184 return;
185 }
186 __dst_free(dst);
187}
188
189static inline void dst_rcu_free(struct rcu_head *head)
190{
191 struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head);
192 dst_free(dst);
193}
194
195static inline void dst_confirm(struct dst_entry *dst)
196{
197 if (dst)
198 neigh_confirm(dst->neighbour);
199}
200
201static inline void dst_negative_advice(struct dst_entry **dst_p)
202{
203 struct dst_entry * dst = *dst_p;
204 if (dst && dst->ops->negative_advice)
205 *dst_p = dst->ops->negative_advice(dst);
206}
207
208static inline void dst_link_failure(struct sk_buff *skb)
209{
210 struct dst_entry * dst = skb->dst;
211 if (dst && dst->ops && dst->ops->link_failure)
212 dst->ops->link_failure(skb);
213}
214
215static inline void dst_set_expires(struct dst_entry *dst, int timeout)
216{
217 unsigned long expires = jiffies + timeout;
218
219 if (expires == 0)
220 expires = 1;
221
222 if (dst->expires == 0 || time_before(expires, dst->expires))
223 dst->expires = expires;
224}
225
226/* Output packet to network from transport. */
227static inline int dst_output(struct sk_buff *skb)
228{
229 int err;
230
231 for (;;) {
232 err = skb->dst->output(skb);
233
234 if (likely(err == 0))
235 return err;
236 if (unlikely(err != NET_XMIT_BYPASS))
237 return err;
238 }
239}
240
241/* Input packet from network to transport. */
242static inline int dst_input(struct sk_buff *skb)
243{
244 int err;
245
246 for (;;) {
247 err = skb->dst->input(skb);
248
249 if (likely(err == 0))
250 return err;
251 /* Oh, Jamal... Seems, I will not forgive you this mess. :-) */
252 if (unlikely(err != NET_XMIT_BYPASS))
253 return err;
254 }
255}
256
257static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie)
258{
259 if (dst->obsolete)
260 dst = dst->ops->check(dst, cookie);
261 return dst;
262}
263
264extern void dst_init(void);
265
266struct flowi;
267#ifndef CONFIG_XFRM
268static inline int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
269 struct sock *sk, int flags)
270{
271 return 0;
272}
273#else
274extern int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
275 struct sock *sk, int flags);
276#endif
277#endif
278
279#endif /* _NET_DST_H */
diff --git a/include/net/esp.h b/include/net/esp.h
new file mode 100644
index 000000000000..90cd94fad7d9
--- /dev/null
+++ b/include/net/esp.h
@@ -0,0 +1,59 @@
1#ifndef _NET_ESP_H
2#define _NET_ESP_H
3
4#include <net/xfrm.h>
5#include <asm/scatterlist.h>
6
7#define ESP_NUM_FAST_SG 4
8
9struct esp_data
10{
11 struct scatterlist sgbuf[ESP_NUM_FAST_SG];
12
13 /* Confidentiality */
14 struct {
15 u8 *key; /* Key */
16 int key_len; /* Key length */
17 u8 *ivec; /* ivec buffer */
18 /* ivlen is offset from enc_data, where encrypted data start.
19 * It is logically different of crypto_tfm_alg_ivsize(tfm).
20 * We assume that it is either zero (no ivec), or
21 * >= crypto_tfm_alg_ivsize(tfm). */
22 int ivlen;
23 int padlen; /* 0..255 */
24 struct crypto_tfm *tfm; /* crypto handle */
25 } conf;
26
27 /* Integrity. It is active when icv_full_len != 0 */
28 struct {
29 u8 *key; /* Key */
30 int key_len; /* Length of the key */
31 u8 *work_icv;
32 int icv_full_len;
33 int icv_trunc_len;
34 void (*icv)(struct esp_data*,
35 struct sk_buff *skb,
36 int offset, int len, u8 *icv);
37 struct crypto_tfm *tfm;
38 } auth;
39};
40
41extern int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len);
42extern int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer);
43extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
44
45static inline void
46esp_hmac_digest(struct esp_data *esp, struct sk_buff *skb, int offset,
47 int len, u8 *auth_data)
48{
49 struct crypto_tfm *tfm = esp->auth.tfm;
50 char *icv = esp->auth.work_icv;
51
52 memset(auth_data, 0, esp->auth.icv_trunc_len);
53 crypto_hmac_init(tfm, esp->auth.key, &esp->auth.key_len);
54 skb_icv_walk(skb, tfm, offset, len, crypto_hmac_update);
55 crypto_hmac_final(tfm, esp->auth.key, &esp->auth.key_len, icv);
56 memcpy(auth_data, icv, esp->auth.icv_trunc_len);
57}
58
59#endif
diff --git a/include/net/flow.h b/include/net/flow.h
new file mode 100644
index 000000000000..9a5c94b1a0ec
--- /dev/null
+++ b/include/net/flow.h
@@ -0,0 +1,95 @@
1/*
2 *
3 * Generic internet FLOW.
4 *
5 */
6
7#ifndef _NET_FLOW_H
8#define _NET_FLOW_H
9
10#include <linux/in6.h>
11#include <asm/atomic.h>
12
13struct flowi {
14 int oif;
15 int iif;
16
17 union {
18 struct {
19 __u32 daddr;
20 __u32 saddr;
21 __u32 fwmark;
22 __u8 tos;
23 __u8 scope;
24 } ip4_u;
25
26 struct {
27 struct in6_addr daddr;
28 struct in6_addr saddr;
29 __u32 flowlabel;
30 } ip6_u;
31
32 struct {
33 __u16 daddr;
34 __u16 saddr;
35 __u32 fwmark;
36 __u8 scope;
37 } dn_u;
38 } nl_u;
39#define fld_dst nl_u.dn_u.daddr
40#define fld_src nl_u.dn_u.saddr
41#define fld_fwmark nl_u.dn_u.fwmark
42#define fld_scope nl_u.dn_u.scope
43#define fl6_dst nl_u.ip6_u.daddr
44#define fl6_src nl_u.ip6_u.saddr
45#define fl6_flowlabel nl_u.ip6_u.flowlabel
46#define fl4_dst nl_u.ip4_u.daddr
47#define fl4_src nl_u.ip4_u.saddr
48#define fl4_fwmark nl_u.ip4_u.fwmark
49#define fl4_tos nl_u.ip4_u.tos
50#define fl4_scope nl_u.ip4_u.scope
51
52 __u8 proto;
53 __u8 flags;
54#define FLOWI_FLAG_MULTIPATHOLDROUTE 0x01
55 union {
56 struct {
57 __u16 sport;
58 __u16 dport;
59 } ports;
60
61 struct {
62 __u8 type;
63 __u8 code;
64 } icmpt;
65
66 struct {
67 __u16 sport;
68 __u16 dport;
69 __u8 objnum;
70 __u8 objnamel; /* Not 16 bits since max val is 16 */
71 __u8 objname[16]; /* Not zero terminated */
72 } dnports;
73
74 __u32 spi;
75 } uli_u;
76#define fl_ip_sport uli_u.ports.sport
77#define fl_ip_dport uli_u.ports.dport
78#define fl_icmp_type uli_u.icmpt.type
79#define fl_icmp_code uli_u.icmpt.code
80#define fl_ipsec_spi uli_u.spi
81} __attribute__((__aligned__(BITS_PER_LONG/8)));
82
83#define FLOW_DIR_IN 0
84#define FLOW_DIR_OUT 1
85#define FLOW_DIR_FWD 2
86
87typedef void (*flow_resolve_t)(struct flowi *key, u16 family, u8 dir,
88 void **objp, atomic_t **obj_refp);
89
90extern void *flow_cache_lookup(struct flowi *key, u16 family, u8 dir,
91 flow_resolve_t resolver);
92extern void flow_cache_flush(void);
93extern atomic_t flow_cache_genid;
94
95#endif
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
new file mode 100644
index 000000000000..0b95cf031d6e
--- /dev/null
+++ b/include/net/gen_stats.h
@@ -0,0 +1,49 @@
1#ifndef __NET_GEN_STATS_H
2#define __NET_GEN_STATS_H
3
4#include <linux/gen_stats.h>
5#include <linux/socket.h>
6#include <linux/rtnetlink.h>
7#include <linux/pkt_sched.h>
8
9struct gnet_dump
10{
11 spinlock_t * lock;
12 struct sk_buff * skb;
13 struct rtattr * tail;
14
15 /* Backward compatability */
16 int compat_tc_stats;
17 int compat_xstats;
18 void * xstats;
19 int xstats_len;
20 struct tc_stats tc_stats;
21};
22
23extern int gnet_stats_start_copy(struct sk_buff *skb, int type,
24 spinlock_t *lock, struct gnet_dump *d);
25
26extern int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
27 int tc_stats_type,int xstats_type,
28 spinlock_t *lock, struct gnet_dump *d);
29
30extern int gnet_stats_copy_basic(struct gnet_dump *d,
31 struct gnet_stats_basic *b);
32extern int gnet_stats_copy_rate_est(struct gnet_dump *d,
33 struct gnet_stats_rate_est *r);
34extern int gnet_stats_copy_queue(struct gnet_dump *d,
35 struct gnet_stats_queue *q);
36extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
37
38extern int gnet_stats_finish_copy(struct gnet_dump *d);
39
40extern int gen_new_estimator(struct gnet_stats_basic *bstats,
41 struct gnet_stats_rate_est *rate_est,
42 spinlock_t *stats_lock, struct rtattr *opt);
43extern void gen_kill_estimator(struct gnet_stats_basic *bstats,
44 struct gnet_stats_rate_est *rate_est);
45extern int gen_replace_estimator(struct gnet_stats_basic *bstats,
46 struct gnet_stats_rate_est *rate_est,
47 spinlock_t *stats_lock, struct rtattr *opt);
48
49#endif
diff --git a/include/net/icmp.h b/include/net/icmp.h
new file mode 100644
index 000000000000..3fc192478aa2
--- /dev/null
+++ b/include/net/icmp.h
@@ -0,0 +1,60 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the ICMP module.
7 *
8 * Version: @(#)icmp.h 1.0.4 05/13/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18#ifndef _ICMP_H
19#define _ICMP_H
20
21#include <linux/config.h>
22#include <linux/icmp.h>
23#include <linux/skbuff.h>
24
25#include <net/sock.h>
26#include <net/protocol.h>
27#include <net/snmp.h>
28#include <linux/ip.h>
29
30struct icmp_err {
31 int errno;
32 unsigned fatal:1;
33};
34
35extern struct icmp_err icmp_err_convert[];
36DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics);
37#define ICMP_INC_STATS(field) SNMP_INC_STATS(icmp_statistics, field)
38#define ICMP_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmp_statistics, field)
39#define ICMP_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmp_statistics, field)
40
41extern void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info);
42extern int icmp_rcv(struct sk_buff *skb);
43extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg);
44extern void icmp_init(struct net_proto_family *ops);
45
46/* Move into dst.h ? */
47extern int xrlim_allow(struct dst_entry *dst, int timeout);
48
49struct raw_sock {
50 /* inet_sock has to be the first member */
51 struct inet_sock inet;
52 struct icmp_filter filter;
53};
54
55static inline struct raw_sock *raw_sk(const struct sock *sk)
56{
57 return (struct raw_sock *)sk;
58}
59
60#endif /* _ICMP_H */
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
new file mode 100644
index 000000000000..e97a9accb71d
--- /dev/null
+++ b/include/net/if_inet6.h
@@ -0,0 +1,285 @@
1/*
2 * inet6 interface/address list definitions
3 * Linux INET6 implementation
4 *
5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt>
7 *
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14
15#ifndef _NET_IF_INET6_H
16#define _NET_IF_INET6_H
17
18#include <net/snmp.h>
19#include <linux/ipv6.h>
20
21/* inet6_dev.if_flags */
22
23#define IF_RA_OTHERCONF 0x80
24#define IF_RA_MANAGED 0x40
25#define IF_RA_RCVD 0x20
26#define IF_RS_SENT 0x10
27
28/* prefix flags */
29#define IF_PREFIX_ONLINK 0x01
30#define IF_PREFIX_AUTOCONF 0x02
31
32#ifdef __KERNEL__
33
34struct inet6_ifaddr
35{
36 struct in6_addr addr;
37 __u32 prefix_len;
38
39 __u32 valid_lft;
40 __u32 prefered_lft;
41 unsigned long cstamp; /* created timestamp */
42 unsigned long tstamp; /* updated timestamp */
43 atomic_t refcnt;
44 spinlock_t lock;
45
46 __u8 probes;
47 __u8 flags;
48
49 __u16 scope;
50
51 struct timer_list timer;
52
53 struct inet6_dev *idev;
54 struct rt6_info *rt;
55
56 struct inet6_ifaddr *lst_next; /* next addr in addr_lst */
57 struct inet6_ifaddr *if_next; /* next addr in inet6_dev */
58
59#ifdef CONFIG_IPV6_PRIVACY
60 struct inet6_ifaddr *tmp_next; /* next addr in tempaddr_lst */
61 struct inet6_ifaddr *ifpub;
62 int regen_count;
63#endif
64
65 int dead;
66};
67
68struct ip6_sf_socklist
69{
70 unsigned int sl_max;
71 unsigned int sl_count;
72 struct in6_addr sl_addr[0];
73};
74
75#define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \
76 (count) * sizeof(struct in6_addr))
77
78#define IP6_SFBLOCK 10 /* allocate this many at once */
79
80struct ipv6_mc_socklist
81{
82 struct in6_addr addr;
83 int ifindex;
84 struct ipv6_mc_socklist *next;
85 unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */
86 struct ip6_sf_socklist *sflist;
87};
88
89struct ip6_sf_list
90{
91 struct ip6_sf_list *sf_next;
92 struct in6_addr sf_addr;
93 unsigned long sf_count[2]; /* include/exclude counts */
94 unsigned char sf_gsresp; /* include in g & s response? */
95 unsigned char sf_oldin; /* change state */
96 unsigned char sf_crcount; /* retrans. left to send */
97};
98
99#define MAF_TIMER_RUNNING 0x01
100#define MAF_LAST_REPORTER 0x02
101#define MAF_LOADED 0x04
102#define MAF_NOREPORT 0x08
103#define MAF_GSQUERY 0x10
104
105struct ifmcaddr6
106{
107 struct in6_addr mca_addr;
108 struct inet6_dev *idev;
109 struct ifmcaddr6 *next;
110 struct ip6_sf_list *mca_sources;
111 struct ip6_sf_list *mca_tomb;
112 unsigned int mca_sfmode;
113 unsigned long mca_sfcount[2];
114 struct timer_list mca_timer;
115 unsigned mca_flags;
116 int mca_users;
117 atomic_t mca_refcnt;
118 spinlock_t mca_lock;
119 unsigned char mca_crcount;
120 unsigned long mca_cstamp;
121 unsigned long mca_tstamp;
122};
123
124/* Anycast stuff */
125
126struct ipv6_ac_socklist
127{
128 struct in6_addr acl_addr;
129 int acl_ifindex;
130 struct ipv6_ac_socklist *acl_next;
131};
132
133struct ifacaddr6
134{
135 struct in6_addr aca_addr;
136 struct inet6_dev *aca_idev;
137 struct rt6_info *aca_rt;
138 struct ifacaddr6 *aca_next;
139 int aca_users;
140 atomic_t aca_refcnt;
141 spinlock_t aca_lock;
142 unsigned long aca_cstamp;
143 unsigned long aca_tstamp;
144};
145
146#define IFA_HOST IPV6_ADDR_LOOPBACK
147#define IFA_LINK IPV6_ADDR_LINKLOCAL
148#define IFA_SITE IPV6_ADDR_SITELOCAL
149#define IFA_GLOBAL 0x0000U
150
151struct ipv6_devstat {
152 struct proc_dir_entry *proc_dir_entry;
153 DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6);
154};
155
156struct inet6_dev
157{
158 struct net_device *dev;
159
160 struct inet6_ifaddr *addr_list;
161
162 struct ifmcaddr6 *mc_list;
163 struct ifmcaddr6 *mc_tomb;
164 rwlock_t mc_lock;
165 unsigned long mc_v1_seen;
166 unsigned long mc_maxdelay;
167 unsigned char mc_qrv;
168 unsigned char mc_gq_running;
169 unsigned char mc_ifc_count;
170 struct timer_list mc_gq_timer; /* general query timer */
171 struct timer_list mc_ifc_timer; /* interface change timer */
172
173 struct ifacaddr6 *ac_list;
174 rwlock_t lock;
175 atomic_t refcnt;
176 __u32 if_flags;
177 int dead;
178
179#ifdef CONFIG_IPV6_PRIVACY
180 u8 rndid[8];
181 u8 entropy[8];
182 struct timer_list regen_timer;
183 struct inet6_ifaddr *tempaddr_list;
184 __u8 work_eui64[8];
185 __u8 work_digest[16];
186#endif
187
188 struct neigh_parms *nd_parms;
189 struct inet6_dev *next;
190 struct ipv6_devconf cnf;
191 struct ipv6_devstat stats;
192 unsigned long tstamp; /* ipv6InterfaceTable update timestamp */
193};
194
195extern struct ipv6_devconf ipv6_devconf;
196
197static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf)
198{
199 /*
200 * +-------+-------+-------+-------+-------+-------+
201 * | 33 | 33 | DST13 | DST14 | DST15 | DST16 |
202 * +-------+-------+-------+-------+-------+-------+
203 */
204
205 buf[0]= 0x33;
206 buf[1]= 0x33;
207
208 memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
209}
210
211static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf)
212{
213 /* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */
214
215 if (((addr->s6_addr[0] == 0xFF) &&
216 ((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) &&
217 (addr->s6_addr16[1] == 0) &&
218 (addr->s6_addr32[1] == 0) &&
219 (addr->s6_addr32[2] == 0) &&
220 (addr->s6_addr16[6] == 0) &&
221 (addr->s6_addr[15] == 1)) ||
222 ((addr->s6_addr[0] == 0xFF) &&
223 (addr->s6_addr[1] == 0x02) &&
224 (addr->s6_addr16[1] == 0) &&
225 (addr->s6_addr32[1] == 0) &&
226 (addr->s6_addr16[4] == 0) &&
227 (addr->s6_addr[10] == 0) &&
228 (addr->s6_addr[11] == 1) &&
229 (addr->s6_addr[12] == 0xff)))
230 {
231 buf[0]=0xC0;
232 buf[1]=0x00;
233 buf[2]=0x01;
234 buf[3]=0x00;
235 buf[4]=0x00;
236 buf[5]=0x00;
237 /* All routers FF0x::2 */
238 } else if ((addr->s6_addr[0] ==0xff) &&
239 ((addr->s6_addr[1] & 0xF0) == 0) &&
240 (addr->s6_addr16[1] == 0) &&
241 (addr->s6_addr32[1] == 0) &&
242 (addr->s6_addr32[2] == 0) &&
243 (addr->s6_addr16[6] == 0) &&
244 (addr->s6_addr[15] == 2))
245 {
246 buf[0]=0xC0;
247 buf[1]=0x00;
248 buf[2]=0x02;
249 buf[3]=0x00;
250 buf[4]=0x00;
251 buf[5]=0x00;
252 } else {
253 unsigned char i ;
254
255 i = addr->s6_addr[15] & 7 ;
256 buf[0]=0xC0;
257 buf[1]=0x00;
258 buf[2]=0x00;
259 buf[3]=0x01 << i ;
260 buf[4]=0x00;
261 buf[5]=0x00;
262 }
263}
264
265static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
266{
267 buf[0] = 0x00;
268}
269
270static inline void ipv6_ib_mc_map(struct in6_addr *addr, char *buf)
271{
272 buf[0] = 0; /* Reserved */
273 buf[1] = 0xff; /* Multicast QPN */
274 buf[2] = 0xff;
275 buf[3] = 0xff;
276 buf[4] = 0xff;
277 buf[5] = 0x12; /* link local scope */
278 buf[6] = 0x60; /* IPv6 signature */
279 buf[7] = 0x1b;
280 buf[8] = 0; /* P_Key */
281 buf[9] = 0;
282 memcpy(buf + 10, addr->s6_addr + 6, 10);
283}
284#endif
285#endif
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
new file mode 100644
index 000000000000..fbc1f4d140d8
--- /dev/null
+++ b/include/net/inet_common.h
@@ -0,0 +1,44 @@
1#ifndef _INET_COMMON_H
2#define _INET_COMMON_H
3
4extern struct proto_ops inet_stream_ops;
5extern struct proto_ops inet_dgram_ops;
6
7/*
8 * INET4 prototypes used by INET6
9 */
10
11extern void inet_remove_sock(struct sock *sk1);
12extern void inet_put_sock(unsigned short num,
13 struct sock *sk);
14extern int inet_release(struct socket *sock);
15extern int inet_stream_connect(struct socket *sock,
16 struct sockaddr * uaddr,
17 int addr_len, int flags);
18extern int inet_dgram_connect(struct socket *sock,
19 struct sockaddr * uaddr,
20 int addr_len, int flags);
21extern int inet_accept(struct socket *sock,
22 struct socket *newsock, int flags);
23extern int inet_sendmsg(struct kiocb *iocb,
24 struct socket *sock,
25 struct msghdr *msg,
26 size_t size);
27extern int inet_shutdown(struct socket *sock, int how);
28extern unsigned int inet_poll(struct file * file, struct socket *sock, struct poll_table_struct *wait);
29extern int inet_listen(struct socket *sock, int backlog);
30
31extern void inet_sock_destruct(struct sock *sk);
32extern atomic_t inet_sock_nr;
33
34extern int inet_bind(struct socket *sock,
35 struct sockaddr *uaddr, int addr_len);
36extern int inet_getname(struct socket *sock,
37 struct sockaddr *uaddr,
38 int *uaddr_len, int peer);
39extern int inet_ioctl(struct socket *sock,
40 unsigned int cmd, unsigned long arg);
41
42#endif
43
44
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
new file mode 100644
index 000000000000..f87845e2e965
--- /dev/null
+++ b/include/net/inet_ecn.h
@@ -0,0 +1,108 @@
1#ifndef _INET_ECN_H_
2#define _INET_ECN_H_
3
4#include <linux/ip.h>
5#include <net/dsfield.h>
6
7enum {
8 INET_ECN_NOT_ECT = 0,
9 INET_ECN_ECT_1 = 1,
10 INET_ECN_ECT_0 = 2,
11 INET_ECN_CE = 3,
12 INET_ECN_MASK = 3,
13};
14
15static inline int INET_ECN_is_ce(__u8 dsfield)
16{
17 return (dsfield & INET_ECN_MASK) == INET_ECN_CE;
18}
19
20static inline int INET_ECN_is_not_ect(__u8 dsfield)
21{
22 return (dsfield & INET_ECN_MASK) == INET_ECN_NOT_ECT;
23}
24
25static inline int INET_ECN_is_capable(__u8 dsfield)
26{
27 return (dsfield & INET_ECN_ECT_0);
28}
29
30static inline __u8 INET_ECN_encapsulate(__u8 outer, __u8 inner)
31{
32 outer &= ~INET_ECN_MASK;
33 outer |= !INET_ECN_is_ce(inner) ? (inner & INET_ECN_MASK) :
34 INET_ECN_ECT_0;
35 return outer;
36}
37
38#define INET_ECN_xmit(sk) do { inet_sk(sk)->tos |= INET_ECN_ECT_0; } while (0)
39#define INET_ECN_dontxmit(sk) \
40 do { inet_sk(sk)->tos &= ~INET_ECN_MASK; } while (0)
41
42#define IP6_ECN_flow_init(label) do { \
43 (label) &= ~htonl(INET_ECN_MASK << 20); \
44 } while (0)
45
46#define IP6_ECN_flow_xmit(sk, label) do { \
47 if (INET_ECN_is_capable(inet_sk(sk)->tos)) \
48 (label) |= __constant_htons(INET_ECN_ECT_0 << 4); \
49 } while (0)
50
51static inline void IP_ECN_set_ce(struct iphdr *iph)
52{
53 u32 check = iph->check;
54 u32 ecn = (iph->tos + 1) & INET_ECN_MASK;
55
56 /*
57 * After the last operation we have (in binary):
58 * INET_ECN_NOT_ECT => 01
59 * INET_ECN_ECT_1 => 10
60 * INET_ECN_ECT_0 => 11
61 * INET_ECN_CE => 00
62 */
63 if (!(ecn & 2))
64 return;
65
66 /*
67 * The following gives us:
68 * INET_ECN_ECT_1 => check += htons(0xFFFD)
69 * INET_ECN_ECT_0 => check += htons(0xFFFE)
70 */
71 check += htons(0xFFFB) + htons(ecn);
72
73 iph->check = check + (check>=0xFFFF);
74 iph->tos |= INET_ECN_CE;
75}
76
77static inline void IP_ECN_clear(struct iphdr *iph)
78{
79 iph->tos &= ~INET_ECN_MASK;
80}
81
82static inline void ipv4_copy_dscp(struct iphdr *outer, struct iphdr *inner)
83{
84 u32 dscp = ipv4_get_dsfield(outer) & ~INET_ECN_MASK;
85 ipv4_change_dsfield(inner, INET_ECN_MASK, dscp);
86}
87
88struct ipv6hdr;
89
90static inline void IP6_ECN_set_ce(struct ipv6hdr *iph)
91{
92 if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph)))
93 return;
94 *(u32*)iph |= htonl(INET_ECN_CE << 20);
95}
96
97static inline void IP6_ECN_clear(struct ipv6hdr *iph)
98{
99 *(u32*)iph &= ~htonl(INET_ECN_MASK << 20);
100}
101
102static inline void ipv6_copy_dscp(struct ipv6hdr *outer, struct ipv6hdr *inner)
103{
104 u32 dscp = ipv6_get_dsfield(outer) & ~INET_ECN_MASK;
105 ipv6_change_dsfield(inner, INET_ECN_MASK, dscp);
106}
107
108#endif
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
new file mode 100644
index 000000000000..7fda471002b6
--- /dev/null
+++ b/include/net/inetpeer.h
@@ -0,0 +1,66 @@
1/*
2 * INETPEER - A storage for permanent information about peers
3 *
4 * Version: $Id: inetpeer.h,v 1.2 2002/01/12 07:54:56 davem Exp $
5 *
6 * Authors: Andrey V. Savochkin <saw@msu.ru>
7 */
8
9#ifndef _NET_INETPEER_H
10#define _NET_INETPEER_H
11
12#include <linux/types.h>
13#include <linux/init.h>
14#include <linux/jiffies.h>
15#include <linux/spinlock.h>
16#include <asm/atomic.h>
17
18struct inet_peer
19{
20 struct inet_peer *avl_left, *avl_right;
21 struct inet_peer *unused_next, **unused_prevp;
22 unsigned long dtime; /* the time of last use of not
23 * referenced entries */
24 atomic_t refcnt;
25 __u32 v4daddr; /* peer's address */
26 __u16 avl_height;
27 __u16 ip_id_count; /* IP ID for the next packet */
28 __u32 tcp_ts;
29 unsigned long tcp_ts_stamp;
30};
31
32void inet_initpeers(void) __init;
33
34/* can be called with or without local BH being disabled */
35struct inet_peer *inet_getpeer(__u32 daddr, int create);
36
37extern spinlock_t inet_peer_unused_lock;
38extern struct inet_peer **inet_peer_unused_tailp;
39/* can be called from BH context or outside */
40static inline void inet_putpeer(struct inet_peer *p)
41{
42 spin_lock_bh(&inet_peer_unused_lock);
43 if (atomic_dec_and_test(&p->refcnt)) {
44 p->unused_prevp = inet_peer_unused_tailp;
45 p->unused_next = NULL;
46 *inet_peer_unused_tailp = p;
47 inet_peer_unused_tailp = &p->unused_next;
48 p->dtime = jiffies;
49 }
50 spin_unlock_bh(&inet_peer_unused_lock);
51}
52
53extern spinlock_t inet_peer_idlock;
54/* can be called with or without local BH being disabled */
55static inline __u16 inet_getid(struct inet_peer *p, int more)
56{
57 __u16 id;
58
59 spin_lock_bh(&inet_peer_idlock);
60 id = p->ip_id_count;
61 p->ip_id_count += 1 + more;
62 spin_unlock_bh(&inet_peer_idlock);
63 return id;
64}
65
66#endif /* _NET_INETPEER_H */
diff --git a/include/net/ip.h b/include/net/ip.h
new file mode 100644
index 000000000000..b4db1375da2c
--- /dev/null
+++ b/include/net/ip.h
@@ -0,0 +1,353 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the IP module.
7 *
8 * Version: @(#)ip.h 1.0.2 05/07/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * Alan Cox, <gw4pts@gw4pts.ampr.org>
13 *
14 * Changes:
15 * Mike McLagan : Routing by source
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version
20 * 2 of the License, or (at your option) any later version.
21 */
22#ifndef _IP_H
23#define _IP_H
24
25#include <linux/config.h>
26#include <linux/types.h>
27#include <linux/socket.h>
28#include <linux/ip.h>
29#include <linux/in.h>
30#include <linux/netdevice.h>
31#include <linux/inetdevice.h>
32#include <linux/in_route.h>
33#include <net/route.h>
34#include <net/arp.h>
35#include <net/snmp.h>
36
37struct sock;
38
39struct inet_skb_parm
40{
41 struct ip_options opt; /* Compiled IP options */
42 unsigned char flags;
43
44#define IPSKB_MASQUERADED 1
45#define IPSKB_TRANSLATED 2
46#define IPSKB_FORWARDED 4
47#define IPSKB_XFRM_TUNNEL_SIZE 8
48};
49
50struct ipcm_cookie
51{
52 u32 addr;
53 int oif;
54 struct ip_options *opt;
55};
56
57#define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb))
58
59struct ip_ra_chain
60{
61 struct ip_ra_chain *next;
62 struct sock *sk;
63 void (*destructor)(struct sock *);
64};
65
66extern struct ip_ra_chain *ip_ra_chain;
67extern rwlock_t ip_ra_lock;
68
69/* IP flags. */
70#define IP_CE 0x8000 /* Flag: "Congestion" */
71#define IP_DF 0x4000 /* Flag: "Don't Fragment" */
72#define IP_MF 0x2000 /* Flag: "More Fragments" */
73#define IP_OFFSET 0x1FFF /* "Fragment Offset" part */
74
75#define IP_FRAG_TIME (30 * HZ) /* fragment lifetime */
76
77extern void ip_mc_dropsocket(struct sock *);
78extern void ip_mc_dropdevice(struct net_device *dev);
79extern int igmp_mc_proc_init(void);
80
81/*
82 * Functions provided by ip.c
83 */
84
85extern int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
86 u32 saddr, u32 daddr,
87 struct ip_options *opt);
88extern int ip_rcv(struct sk_buff *skb, struct net_device *dev,
89 struct packet_type *pt);
90extern int ip_local_deliver(struct sk_buff *skb);
91extern int ip_mr_input(struct sk_buff *skb);
92extern int ip_output(struct sk_buff *skb);
93extern int ip_mc_output(struct sk_buff *skb);
94extern int ip_fragment(struct sk_buff *skb, int (*out)(struct sk_buff*));
95extern int ip_do_nat(struct sk_buff *skb);
96extern void ip_send_check(struct iphdr *ip);
97extern int ip_queue_xmit(struct sk_buff *skb, int ipfragok);
98extern void ip_init(void);
99extern int ip_append_data(struct sock *sk,
100 int getfrag(void *from, char *to, int offset, int len,
101 int odd, struct sk_buff *skb),
102 void *from, int len, int protolen,
103 struct ipcm_cookie *ipc,
104 struct rtable *rt,
105 unsigned int flags);
106extern int ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb);
107extern ssize_t ip_append_page(struct sock *sk, struct page *page,
108 int offset, size_t size, int flags);
109extern int ip_push_pending_frames(struct sock *sk);
110extern void ip_flush_pending_frames(struct sock *sk);
111
112/* datagram.c */
113extern int ip4_datagram_connect(struct sock *sk,
114 struct sockaddr *uaddr, int addr_len);
115
116/*
117 * Map a multicast IP onto multicast MAC for type Token Ring.
118 * This conforms to RFC1469 Option 2 Multicasting i.e.
119 * using a functional address to transmit / receive
120 * multicast packets.
121 */
122
123static inline void ip_tr_mc_map(u32 addr, char *buf)
124{
125 buf[0]=0xC0;
126 buf[1]=0x00;
127 buf[2]=0x00;
128 buf[3]=0x04;
129 buf[4]=0x00;
130 buf[5]=0x00;
131}
132
133struct ip_reply_arg {
134 struct kvec iov[1];
135 u32 csum;
136 int csumoffset; /* u16 offset of csum in iov[0].iov_base */
137 /* -1 if not needed */
138};
139
140void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *arg,
141 unsigned int len);
142
143extern int ip_finish_output(struct sk_buff *skb);
144
145struct ipv4_config
146{
147 int log_martians;
148 int autoconfig;
149 int no_pmtu_disc;
150};
151
152extern struct ipv4_config ipv4_config;
153DECLARE_SNMP_STAT(struct ipstats_mib, ip_statistics);
154#define IP_INC_STATS(field) SNMP_INC_STATS(ip_statistics, field)
155#define IP_INC_STATS_BH(field) SNMP_INC_STATS_BH(ip_statistics, field)
156#define IP_INC_STATS_USER(field) SNMP_INC_STATS_USER(ip_statistics, field)
157DECLARE_SNMP_STAT(struct linux_mib, net_statistics);
158#define NET_INC_STATS(field) SNMP_INC_STATS(net_statistics, field)
159#define NET_INC_STATS_BH(field) SNMP_INC_STATS_BH(net_statistics, field)
160#define NET_INC_STATS_USER(field) SNMP_INC_STATS_USER(net_statistics, field)
161#define NET_ADD_STATS_BH(field, adnd) SNMP_ADD_STATS_BH(net_statistics, field, adnd)
162#define NET_ADD_STATS_USER(field, adnd) SNMP_ADD_STATS_USER(net_statistics, field, adnd)
163
164extern int sysctl_local_port_range[2];
165extern int sysctl_ip_default_ttl;
166
167#ifdef CONFIG_INET
168/* The function in 2.2 was invalid, producing wrong result for
169 * check=0xFEFF. It was noticed by Arthur Skawina _year_ ago. --ANK(000625) */
170static inline
171int ip_decrease_ttl(struct iphdr *iph)
172{
173 u32 check = iph->check;
174 check += htons(0x0100);
175 iph->check = check + (check>=0xFFFF);
176 return --iph->ttl;
177}
178
179static inline
180int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)
181{
182 return (inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO ||
183 (inet_sk(sk)->pmtudisc == IP_PMTUDISC_WANT &&
184 !(dst_metric(dst, RTAX_LOCK)&(1<<RTAX_MTU))));
185}
186
187extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more);
188
189static inline void ip_select_ident(struct iphdr *iph, struct dst_entry *dst, struct sock *sk)
190{
191 if (iph->frag_off & htons(IP_DF)) {
192 /* This is only to work around buggy Windows95/2000
193 * VJ compression implementations. If the ID field
194 * does not change, they drop every other packet in
195 * a TCP stream using header compression.
196 */
197 iph->id = (sk && inet_sk(sk)->daddr) ?
198 htons(inet_sk(sk)->id++) : 0;
199 } else
200 __ip_select_ident(iph, dst, 0);
201}
202
203static inline void ip_select_ident_more(struct iphdr *iph, struct dst_entry *dst, struct sock *sk, int more)
204{
205 if (iph->frag_off & htons(IP_DF)) {
206 if (sk && inet_sk(sk)->daddr) {
207 iph->id = htons(inet_sk(sk)->id);
208 inet_sk(sk)->id += 1 + more;
209 } else
210 iph->id = 0;
211 } else
212 __ip_select_ident(iph, dst, more);
213}
214
215/*
216 * Map a multicast IP onto multicast MAC for type ethernet.
217 */
218
219static inline void ip_eth_mc_map(u32 addr, char *buf)
220{
221 addr=ntohl(addr);
222 buf[0]=0x01;
223 buf[1]=0x00;
224 buf[2]=0x5e;
225 buf[5]=addr&0xFF;
226 addr>>=8;
227 buf[4]=addr&0xFF;
228 addr>>=8;
229 buf[3]=addr&0x7F;
230}
231
232/*
233 * Map a multicast IP onto multicast MAC for type IP-over-InfiniBand.
234 * Leave P_Key as 0 to be filled in by driver.
235 */
236
237static inline void ip_ib_mc_map(u32 addr, char *buf)
238{
239 buf[0] = 0; /* Reserved */
240 buf[1] = 0xff; /* Multicast QPN */
241 buf[2] = 0xff;
242 buf[3] = 0xff;
243 addr = ntohl(addr);
244 buf[4] = 0xff;
245 buf[5] = 0x12; /* link local scope */
246 buf[6] = 0x40; /* IPv4 signature */
247 buf[7] = 0x1b;
248 buf[8] = 0; /* P_Key */
249 buf[9] = 0;
250 buf[10] = 0;
251 buf[11] = 0;
252 buf[12] = 0;
253 buf[13] = 0;
254 buf[14] = 0;
255 buf[15] = 0;
256 buf[19] = addr & 0xff;
257 addr >>= 8;
258 buf[18] = addr & 0xff;
259 addr >>= 8;
260 buf[17] = addr & 0xff;
261 addr >>= 8;
262 buf[16] = addr & 0x0f;
263}
264
265#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
266#include <linux/ipv6.h>
267#endif
268
269static __inline__ void inet_reset_saddr(struct sock *sk)
270{
271 inet_sk(sk)->rcv_saddr = inet_sk(sk)->saddr = 0;
272#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
273 if (sk->sk_family == PF_INET6) {
274 struct ipv6_pinfo *np = inet6_sk(sk);
275
276 memset(&np->saddr, 0, sizeof(np->saddr));
277 memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr));
278 }
279#endif
280}
281
282#endif
283
284extern int ip_call_ra_chain(struct sk_buff *skb);
285
286/*
287 * Functions provided by ip_fragment.o
288 */
289
290enum ip_defrag_users
291{
292 IP_DEFRAG_LOCAL_DELIVER,
293 IP_DEFRAG_CALL_RA_CHAIN,
294 IP_DEFRAG_CONNTRACK_IN,
295 IP_DEFRAG_CONNTRACK_OUT,
296 IP_DEFRAG_NAT_OUT,
297 IP_DEFRAG_VS_IN,
298 IP_DEFRAG_VS_OUT,
299 IP_DEFRAG_VS_FWD
300};
301
302struct sk_buff *ip_defrag(struct sk_buff *skb, u32 user);
303extern int ip_frag_nqueues;
304extern atomic_t ip_frag_mem;
305
306/*
307 * Functions provided by ip_forward.c
308 */
309
310extern int ip_forward(struct sk_buff *skb);
311extern int ip_net_unreachable(struct sk_buff *skb);
312
313/*
314 * Functions provided by ip_options.c
315 */
316
317extern void ip_options_build(struct sk_buff *skb, struct ip_options *opt, u32 daddr, struct rtable *rt, int is_frag);
318extern int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb);
319extern void ip_options_fragment(struct sk_buff *skb);
320extern int ip_options_compile(struct ip_options *opt, struct sk_buff *skb);
321extern int ip_options_get(struct ip_options **optp, unsigned char *data, int optlen, int user);
322extern void ip_options_undo(struct ip_options * opt);
323extern void ip_forward_options(struct sk_buff *skb);
324extern int ip_options_rcv_srr(struct sk_buff *skb);
325
326/*
327 * Functions provided by ip_sockglue.c
328 */
329
330extern void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb);
331extern int ip_cmsg_send(struct msghdr *msg, struct ipcm_cookie *ipc);
332extern int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen);
333extern int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen);
334extern int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *));
335
336extern int ip_recv_error(struct sock *sk, struct msghdr *msg, int len);
337extern void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
338 u16 port, u32 info, u8 *payload);
339extern void ip_local_error(struct sock *sk, int err, u32 daddr, u16 dport,
340 u32 info);
341
342/* sysctl helpers - any sysctl which holds a value that ends up being
343 * fed into the routing cache should use these handlers.
344 */
345int ipv4_doint_and_flush(ctl_table *ctl, int write,
346 struct file* filp, void __user *buffer,
347 size_t *lenp, loff_t *ppos);
348int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen,
349 void __user *oldval, size_t __user *oldlenp,
350 void __user *newval, size_t newlen,
351 void **context);
352
353#endif /* _IP_H */
diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h
new file mode 100644
index 000000000000..3dfc885bdf25
--- /dev/null
+++ b/include/net/ip6_checksum.h
@@ -0,0 +1,94 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Checksumming functions for IPv6
7 *
8 * Authors: Jorge Cwik, <jorge@laser.satlink.net>
9 * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
10 * Borrows very liberally from tcp.c and ip.c, see those
11 * files for more names.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18
19/*
20 * Fixes:
21 *
22 * Ralf Baechle : generic ipv6 checksum
23 * <ralf@waldorf-gmbh.de>
24 */
25
26#ifndef _CHECKSUM_IPV6_H
27#define _CHECKSUM_IPV6_H
28
29#include <asm/types.h>
30#include <asm/byteorder.h>
31#include <net/ip.h>
32#include <asm/checksum.h>
33#include <linux/in6.h>
34
35#ifndef _HAVE_ARCH_IPV6_CSUM
36
37static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr,
38 struct in6_addr *daddr,
39 __u16 len,
40 unsigned short proto,
41 unsigned int csum)
42{
43
44 int carry;
45 __u32 ulen;
46 __u32 uproto;
47
48 csum += saddr->s6_addr32[0];
49 carry = (csum < saddr->s6_addr32[0]);
50 csum += carry;
51
52 csum += saddr->s6_addr32[1];
53 carry = (csum < saddr->s6_addr32[1]);
54 csum += carry;
55
56 csum += saddr->s6_addr32[2];
57 carry = (csum < saddr->s6_addr32[2]);
58 csum += carry;
59
60 csum += saddr->s6_addr32[3];
61 carry = (csum < saddr->s6_addr32[3]);
62 csum += carry;
63
64 csum += daddr->s6_addr32[0];
65 carry = (csum < daddr->s6_addr32[0]);
66 csum += carry;
67
68 csum += daddr->s6_addr32[1];
69 carry = (csum < daddr->s6_addr32[1]);
70 csum += carry;
71
72 csum += daddr->s6_addr32[2];
73 carry = (csum < daddr->s6_addr32[2]);
74 csum += carry;
75
76 csum += daddr->s6_addr32[3];
77 carry = (csum < daddr->s6_addr32[3]);
78 csum += carry;
79
80 ulen = htonl((__u32) len);
81 csum += ulen;
82 carry = (csum < ulen);
83 csum += carry;
84
85 uproto = htonl(proto);
86 csum += uproto;
87 carry = (csum < uproto);
88 csum += carry;
89
90 return csum_fold(csum);
91}
92
93#endif
94#endif
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
new file mode 100644
index 000000000000..319904518194
--- /dev/null
+++ b/include/net/ip6_fib.h
@@ -0,0 +1,185 @@
1/*
2 * Linux INET6 implementation
3 *
4 * Authors:
5 * Pedro Roque <roque@di.fc.ul.pt>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12
13#ifndef _IP6_FIB_H
14#define _IP6_FIB_H
15
16#ifdef __KERNEL__
17
18#include <linux/ipv6_route.h>
19
20#include <net/dst.h>
21#include <net/flow.h>
22#include <linux/rtnetlink.h>
23#include <linux/spinlock.h>
24
25struct rt6_info;
26
27struct fib6_node
28{
29 struct fib6_node *parent;
30 struct fib6_node *left;
31 struct fib6_node *right;
32
33 struct fib6_node *subtree;
34
35 struct rt6_info *leaf;
36
37 __u16 fn_bit; /* bit key */
38 __u16 fn_flags;
39 __u32 fn_sernum;
40};
41
42
43/*
44 * routing information
45 *
46 */
47
48struct rt6key
49{
50 struct in6_addr addr;
51 int plen;
52};
53
54struct rt6_info
55{
56 union {
57 struct dst_entry dst;
58 struct rt6_info *next;
59 } u;
60
61 struct inet6_dev *rt6i_idev;
62
63#define rt6i_dev u.dst.dev
64#define rt6i_nexthop u.dst.neighbour
65#define rt6i_expires u.dst.expires
66
67 struct fib6_node *rt6i_node;
68
69 struct in6_addr rt6i_gateway;
70
71 u32 rt6i_flags;
72 u32 rt6i_metric;
73 atomic_t rt6i_ref;
74
75 struct rt6key rt6i_dst;
76 struct rt6key rt6i_src;
77
78 u8 rt6i_protocol;
79};
80
81struct fib6_walker_t
82{
83 struct fib6_walker_t *prev, *next;
84 struct fib6_node *root, *node;
85 struct rt6_info *leaf;
86 unsigned char state;
87 unsigned char prune;
88 int (*func)(struct fib6_walker_t *);
89 void *args;
90};
91
92extern struct fib6_walker_t fib6_walker_list;
93extern rwlock_t fib6_walker_lock;
94
95static inline void fib6_walker_link(struct fib6_walker_t *w)
96{
97 write_lock_bh(&fib6_walker_lock);
98 w->next = fib6_walker_list.next;
99 w->prev = &fib6_walker_list;
100 w->next->prev = w;
101 w->prev->next = w;
102 write_unlock_bh(&fib6_walker_lock);
103}
104
105static inline void fib6_walker_unlink(struct fib6_walker_t *w)
106{
107 write_lock_bh(&fib6_walker_lock);
108 w->next->prev = w->prev;
109 w->prev->next = w->next;
110 w->prev = w->next = w;
111 write_unlock_bh(&fib6_walker_lock);
112}
113
114struct rt6_statistics {
115 __u32 fib_nodes;
116 __u32 fib_route_nodes;
117 __u32 fib_rt_alloc; /* permanent routes */
118 __u32 fib_rt_entries; /* rt entries in table */
119 __u32 fib_rt_cache; /* cache routes */
120 __u32 fib_discarded_routes;
121};
122
123#define RTN_TL_ROOT 0x0001
124#define RTN_ROOT 0x0002 /* tree root node */
125#define RTN_RTINFO 0x0004 /* node with valid routing info */
126
127/*
128 * priority levels (or metrics)
129 *
130 */
131
132#define RTPRI_FIREWALL 8 /* Firewall control information */
133#define RTPRI_FLOW 16 /* Flow based forwarding rules */
134#define RTPRI_KERN_CTL 32 /* Kernel control routes */
135
136#define RTPRI_USER_MIN 256 /* Mimimum user priority */
137#define RTPRI_USER_MAX 1024 /* Maximum user priority */
138
139#define RTPRI_KERN_DFLT 4096 /* Kernel default routes */
140
141#define MAX_FLOW_BACKTRACE 32
142
143
144typedef void (*f_pnode)(struct fib6_node *fn, void *);
145
146extern struct fib6_node ip6_routing_table;
147
148/*
149 * exported functions
150 */
151
152extern struct fib6_node *fib6_lookup(struct fib6_node *root,
153 struct in6_addr *daddr,
154 struct in6_addr *saddr);
155
156struct fib6_node *fib6_locate(struct fib6_node *root,
157 struct in6_addr *daddr, int dst_len,
158 struct in6_addr *saddr, int src_len);
159
160extern void fib6_clean_tree(struct fib6_node *root,
161 int (*func)(struct rt6_info *, void *arg),
162 int prune, void *arg);
163
164extern int fib6_walk(struct fib6_walker_t *w);
165extern int fib6_walk_continue(struct fib6_walker_t *w);
166
167extern int fib6_add(struct fib6_node *root,
168 struct rt6_info *rt,
169 struct nlmsghdr *nlh,
170 void *rtattr);
171
172extern int fib6_del(struct rt6_info *rt,
173 struct nlmsghdr *nlh,
174 void *rtattr);
175
176extern void inet6_rt_notify(int event, struct rt6_info *rt,
177 struct nlmsghdr *nlh);
178
179extern void fib6_run_gc(unsigned long dummy);
180
181extern void fib6_gc_cleanup(void);
182
183extern void fib6_init(void);
184#endif
185#endif
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
new file mode 100644
index 000000000000..d5d1dd10cdb8
--- /dev/null
+++ b/include/net/ip6_route.h
@@ -0,0 +1,141 @@
1#ifndef _NET_IP6_ROUTE_H
2#define _NET_IP6_ROUTE_H
3
4#define IP6_RT_PRIO_FW 16
5#define IP6_RT_PRIO_USER 1024
6#define IP6_RT_PRIO_ADDRCONF 256
7#define IP6_RT_PRIO_KERN 512
8#define IP6_RT_FLOW_MASK 0x00ff
9
10#ifdef __KERNEL__
11
12#include <net/flow.h>
13#include <net/ip6_fib.h>
14#include <net/sock.h>
15#include <linux/tcp.h>
16#include <linux/ip.h>
17#include <linux/ipv6.h>
18
19struct pol_chain {
20 int type;
21 int priority;
22 struct fib6_node *rules;
23 struct pol_chain *next;
24};
25
26extern struct rt6_info ip6_null_entry;
27
28extern int ip6_rt_gc_interval;
29
30extern void ip6_route_input(struct sk_buff *skb);
31
32extern struct dst_entry * ip6_route_output(struct sock *sk,
33 struct flowi *fl);
34
35extern int ip6_route_me_harder(struct sk_buff *skb);
36
37extern void ip6_route_init(void);
38extern void ip6_route_cleanup(void);
39
40extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg);
41
42extern int ip6_route_add(struct in6_rtmsg *rtmsg,
43 struct nlmsghdr *,
44 void *rtattr);
45extern int ip6_ins_rt(struct rt6_info *,
46 struct nlmsghdr *,
47 void *rtattr);
48extern int ip6_del_rt(struct rt6_info *,
49 struct nlmsghdr *,
50 void *rtattr);
51
52extern int ip6_rt_addr_add(struct in6_addr *addr,
53 struct net_device *dev,
54 int anycast);
55
56extern int ip6_rt_addr_del(struct in6_addr *addr,
57 struct net_device *dev);
58
59extern void rt6_sndmsg(int type, struct in6_addr *dst,
60 struct in6_addr *src,
61 struct in6_addr *gw,
62 struct net_device *dev,
63 int dstlen, int srclen,
64 int metric, __u32 flags);
65
66extern struct rt6_info *rt6_lookup(struct in6_addr *daddr,
67 struct in6_addr *saddr,
68 int oif, int flags);
69
70extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
71 struct neighbour *neigh,
72 struct in6_addr *addr,
73 int (*output)(struct sk_buff *));
74extern int ndisc_dst_gc(int *more);
75extern void fib6_force_start_gc(void);
76
77extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
78 const struct in6_addr *addr,
79 int anycast);
80
81/*
82 * support functions for ND
83 *
84 */
85extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr,
86 struct net_device *dev);
87extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr,
88 struct net_device *dev);
89
90extern void rt6_purge_dflt_routers(void);
91
92extern void rt6_reset_dflt_pointer(struct rt6_info *rt);
93
94extern void rt6_redirect(struct in6_addr *dest,
95 struct in6_addr *saddr,
96 struct neighbour *neigh,
97 u8 *lladdr,
98 int on_link);
99
100extern void rt6_pmtu_discovery(struct in6_addr *daddr,
101 struct in6_addr *saddr,
102 struct net_device *dev,
103 u32 pmtu);
104
105struct nlmsghdr;
106struct netlink_callback;
107extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
108extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
109extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
110extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
111
112extern void rt6_ifdown(struct net_device *dev);
113extern void rt6_mtu_change(struct net_device *dev, unsigned mtu);
114
115extern rwlock_t rt6_lock;
116
117/*
118 * Store a destination cache entry in a socket
119 */
120static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
121 struct in6_addr *daddr)
122{
123 struct ipv6_pinfo *np = inet6_sk(sk);
124 struct rt6_info *rt = (struct rt6_info *) dst;
125
126 write_lock(&sk->sk_dst_lock);
127 __sk_dst_set(sk, dst);
128 np->daddr_cache = daddr;
129 np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
130 write_unlock(&sk->sk_dst_lock);
131}
132
133static inline int ipv6_unicast_destination(struct sk_buff *skb)
134{
135 struct rt6_info *rt = (struct rt6_info *) skb->dst;
136
137 return rt->rt6i_flags & RTF_LOCAL;
138}
139
140#endif
141#endif
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
new file mode 100644
index 000000000000..29c9da707c7a
--- /dev/null
+++ b/include/net/ip6_tunnel.h
@@ -0,0 +1,40 @@
1/*
2 * $Id$
3 */
4
5#ifndef _NET_IP6_TUNNEL_H
6#define _NET_IP6_TUNNEL_H
7
8#include <linux/ipv6.h>
9#include <linux/netdevice.h>
10#include <linux/ip6_tunnel.h>
11
12/* capable of sending packets */
13#define IP6_TNL_F_CAP_XMIT 0x10000
14/* capable of receiving packets */
15#define IP6_TNL_F_CAP_RCV 0x20000
16
17#define IP6_TNL_MAX 128
18
19/* IPv6 tunnel */
20
21struct ip6_tnl {
22 struct ip6_tnl *next; /* next tunnel in list */
23 struct net_device *dev; /* virtual device associated with tunnel */
24 struct net_device_stats stat; /* statistics for tunnel device */
25 int recursion; /* depth of hard_start_xmit recursion */
26 struct ip6_tnl_parm parms; /* tunnel configuration paramters */
27 struct flowi fl; /* flowi template for xmit */
28 struct dst_entry *dst_cache; /* cached dst */
29 u32 dst_cookie;
30};
31
32/* Tunnel encapsulation limit destination sub-option */
33
34struct ipv6_tlv_tnl_enc_lim {
35 __u8 type; /* type-code for option */
36 __u8 length; /* option length */
37 __u8 encap_limit; /* tunnel encapsulation limit */
38} __attribute__ ((packed));
39
40#endif
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
new file mode 100644
index 000000000000..e5a5f6b62f88
--- /dev/null
+++ b/include/net/ip_fib.h
@@ -0,0 +1,284 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the Forwarding Information Base.
7 *
8 * Authors: A.N.Kuznetsov, <kuznet@ms2.inr.ac.ru>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 */
15
16#ifndef _NET_IP_FIB_H
17#define _NET_IP_FIB_H
18
19#include <linux/config.h>
20#include <net/flow.h>
21#include <linux/seq_file.h>
22
23/* WARNING: The ordering of these elements must match ordering
24 * of RTA_* rtnetlink attribute numbers.
25 */
26struct kern_rta {
27 void *rta_dst;
28 void *rta_src;
29 int *rta_iif;
30 int *rta_oif;
31 void *rta_gw;
32 u32 *rta_priority;
33 void *rta_prefsrc;
34 struct rtattr *rta_mx;
35 struct rtattr *rta_mp;
36 unsigned char *rta_protoinfo;
37 u32 *rta_flow;
38 struct rta_cacheinfo *rta_ci;
39 struct rta_session *rta_sess;
40 u32 *rta_mp_alg;
41};
42
43struct fib_info;
44
45struct fib_nh {
46 struct net_device *nh_dev;
47 struct hlist_node nh_hash;
48 struct fib_info *nh_parent;
49 unsigned nh_flags;
50 unsigned char nh_scope;
51#ifdef CONFIG_IP_ROUTE_MULTIPATH
52 int nh_weight;
53 int nh_power;
54#endif
55#ifdef CONFIG_NET_CLS_ROUTE
56 __u32 nh_tclassid;
57#endif
58 int nh_oif;
59 u32 nh_gw;
60};
61
62/*
63 * This structure contains data shared by many of routes.
64 */
65
66struct fib_info {
67 struct hlist_node fib_hash;
68 struct hlist_node fib_lhash;
69 int fib_treeref;
70 atomic_t fib_clntref;
71 int fib_dead;
72 unsigned fib_flags;
73 int fib_protocol;
74 u32 fib_prefsrc;
75 u32 fib_priority;
76 u32 fib_metrics[RTAX_MAX];
77#define fib_mtu fib_metrics[RTAX_MTU-1]
78#define fib_window fib_metrics[RTAX_WINDOW-1]
79#define fib_rtt fib_metrics[RTAX_RTT-1]
80#define fib_advmss fib_metrics[RTAX_ADVMSS-1]
81 int fib_nhs;
82#ifdef CONFIG_IP_ROUTE_MULTIPATH
83 int fib_power;
84#endif
85#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
86 u32 fib_mp_alg;
87#endif
88 struct fib_nh fib_nh[0];
89#define fib_dev fib_nh[0].nh_dev
90};
91
92
93#ifdef CONFIG_IP_MULTIPLE_TABLES
94struct fib_rule;
95#endif
96
97struct fib_result {
98 unsigned char prefixlen;
99 unsigned char nh_sel;
100 unsigned char type;
101 unsigned char scope;
102#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
103 __u32 network;
104 __u32 netmask;
105#endif
106 struct fib_info *fi;
107#ifdef CONFIG_IP_MULTIPLE_TABLES
108 struct fib_rule *r;
109#endif
110};
111
112
113#ifdef CONFIG_IP_ROUTE_MULTIPATH
114
115#define FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
116#define FIB_RES_RESET(res) ((res).nh_sel = 0)
117
118#else /* CONFIG_IP_ROUTE_MULTIPATH */
119
120#define FIB_RES_NH(res) ((res).fi->fib_nh[0])
121#define FIB_RES_RESET(res)
122
123#endif /* CONFIG_IP_ROUTE_MULTIPATH */
124
125#define FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __fib_res_prefsrc(&res))
126#define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw)
127#define FIB_RES_DEV(res) (FIB_RES_NH(res).nh_dev)
128#define FIB_RES_OIF(res) (FIB_RES_NH(res).nh_oif)
129
130#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
131#define FIB_RES_NETWORK(res) ((res).network)
132#define FIB_RES_NETMASK(res) ((res).netmask)
133#else /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */
134#define FIB_RES_NETWORK(res) (0)
135#define FIB_RES_NETMASK(res) (0)
136#endif /* CONFIG_IP_ROUTE_MULTIPATH_WRANDOM */
137
138struct fib_table {
139 unsigned char tb_id;
140 unsigned tb_stamp;
141 int (*tb_lookup)(struct fib_table *tb, const struct flowi *flp, struct fib_result *res);
142 int (*tb_insert)(struct fib_table *table, struct rtmsg *r,
143 struct kern_rta *rta, struct nlmsghdr *n,
144 struct netlink_skb_parms *req);
145 int (*tb_delete)(struct fib_table *table, struct rtmsg *r,
146 struct kern_rta *rta, struct nlmsghdr *n,
147 struct netlink_skb_parms *req);
148 int (*tb_dump)(struct fib_table *table, struct sk_buff *skb,
149 struct netlink_callback *cb);
150 int (*tb_flush)(struct fib_table *table);
151 void (*tb_select_default)(struct fib_table *table,
152 const struct flowi *flp, struct fib_result *res);
153
154 unsigned char tb_data[0];
155};
156
157#ifndef CONFIG_IP_MULTIPLE_TABLES
158
159extern struct fib_table *ip_fib_local_table;
160extern struct fib_table *ip_fib_main_table;
161
162static inline struct fib_table *fib_get_table(int id)
163{
164 if (id != RT_TABLE_LOCAL)
165 return ip_fib_main_table;
166 return ip_fib_local_table;
167}
168
169static inline struct fib_table *fib_new_table(int id)
170{
171 return fib_get_table(id);
172}
173
174static inline int fib_lookup(const struct flowi *flp, struct fib_result *res)
175{
176 if (ip_fib_local_table->tb_lookup(ip_fib_local_table, flp, res) &&
177 ip_fib_main_table->tb_lookup(ip_fib_main_table, flp, res))
178 return -ENETUNREACH;
179 return 0;
180}
181
182static inline void fib_select_default(const struct flowi *flp, struct fib_result *res)
183{
184 if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
185 ip_fib_main_table->tb_select_default(ip_fib_main_table, flp, res);
186}
187
188#else /* CONFIG_IP_MULTIPLE_TABLES */
189#define ip_fib_local_table (fib_tables[RT_TABLE_LOCAL])
190#define ip_fib_main_table (fib_tables[RT_TABLE_MAIN])
191
192extern struct fib_table * fib_tables[RT_TABLE_MAX+1];
193extern int fib_lookup(const struct flowi *flp, struct fib_result *res);
194extern struct fib_table *__fib_new_table(int id);
195extern void fib_rule_put(struct fib_rule *r);
196
197static inline struct fib_table *fib_get_table(int id)
198{
199 if (id == 0)
200 id = RT_TABLE_MAIN;
201
202 return fib_tables[id];
203}
204
205static inline struct fib_table *fib_new_table(int id)
206{
207 if (id == 0)
208 id = RT_TABLE_MAIN;
209
210 return fib_tables[id] ? : __fib_new_table(id);
211}
212
213extern void fib_select_default(const struct flowi *flp, struct fib_result *res);
214
215#endif /* CONFIG_IP_MULTIPLE_TABLES */
216
217/* Exported by fib_frontend.c */
218extern void ip_fib_init(void);
219extern int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
220extern int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
221extern int inet_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
222extern int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
223extern int fib_validate_source(u32 src, u32 dst, u8 tos, int oif,
224 struct net_device *dev, u32 *spec_dst, u32 *itag);
225extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res);
226
227/* Exported by fib_semantics.c */
228extern int ip_fib_check_default(u32 gw, struct net_device *dev);
229extern int fib_sync_down(u32 local, struct net_device *dev, int force);
230extern int fib_sync_up(struct net_device *dev);
231extern int fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm,
232 struct kern_rta *rta, struct rtentry *r);
233extern u32 __fib_res_prefsrc(struct fib_result *res);
234
235/* Exported by fib_hash.c */
236extern struct fib_table *fib_hash_init(int id);
237
238#ifdef CONFIG_IP_MULTIPLE_TABLES
239/* Exported by fib_rules.c */
240
241extern int inet_rtm_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
242extern int inet_rtm_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
243extern int inet_dump_rules(struct sk_buff *skb, struct netlink_callback *cb);
244#ifdef CONFIG_NET_CLS_ROUTE
245extern u32 fib_rules_tclass(struct fib_result *res);
246#endif
247extern void fib_rules_init(void);
248#endif
249
250static inline void fib_combine_itag(u32 *itag, struct fib_result *res)
251{
252#ifdef CONFIG_NET_CLS_ROUTE
253#ifdef CONFIG_IP_MULTIPLE_TABLES
254 u32 rtag;
255#endif
256 *itag = FIB_RES_NH(*res).nh_tclassid<<16;
257#ifdef CONFIG_IP_MULTIPLE_TABLES
258 rtag = fib_rules_tclass(res);
259 if (*itag == 0)
260 *itag = (rtag<<16);
261 *itag |= (rtag>>16);
262#endif
263#endif
264}
265
266extern void free_fib_info(struct fib_info *fi);
267
268static inline void fib_info_put(struct fib_info *fi)
269{
270 if (atomic_dec_and_test(&fi->fib_clntref))
271 free_fib_info(fi);
272}
273
274static inline void fib_res_put(struct fib_result *res)
275{
276 if (res->fi)
277 fib_info_put(res->fi);
278#ifdef CONFIG_IP_MULTIPLE_TABLES
279 if (res->r)
280 fib_rule_put(res->r);
281#endif
282}
283
284#endif /* _NET_FIB_H */
diff --git a/include/net/ip_mp_alg.h b/include/net/ip_mp_alg.h
new file mode 100644
index 000000000000..77225735cbd4
--- /dev/null
+++ b/include/net/ip_mp_alg.h
@@ -0,0 +1,99 @@
1/* ip_mp_alg.h: IPV4 multipath algorithm support.
2 *
3 * Copyright (C) 2004, 2005 Einar Lueck <elueck@de.ibm.com>
4 * Copyright (C) 2005 David S. Miller <davem@davemloft.net>
5 */
6
7#ifndef _NET_IP_MP_ALG_H
8#define _NET_IP_MP_ALG_H
9
10#include <linux/config.h>
11#include <linux/ip_mp_alg.h>
12#include <net/flow.h>
13#include <net/route.h>
14
15struct fib_nh;
16
17struct ip_mp_alg_ops {
18 void (*mp_alg_select_route)(const struct flowi *flp,
19 struct rtable *rth, struct rtable **rp);
20 void (*mp_alg_flush)(void);
21 void (*mp_alg_set_nhinfo)(__u32 network, __u32 netmask,
22 unsigned char prefixlen,
23 const struct fib_nh *nh);
24 void (*mp_alg_remove)(struct rtable *rth);
25};
26
27extern int multipath_alg_register(struct ip_mp_alg_ops *, enum ip_mp_alg);
28extern void multipath_alg_unregister(struct ip_mp_alg_ops *, enum ip_mp_alg);
29
30extern struct ip_mp_alg_ops *ip_mp_alg_table[];
31
32static inline int multipath_select_route(const struct flowi *flp,
33 struct rtable *rth,
34 struct rtable **rp)
35{
36#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
37 struct ip_mp_alg_ops *ops = ip_mp_alg_table[rth->rt_multipath_alg];
38
39 /* mp_alg_select_route _MUST_ be implemented */
40 if (ops && (rth->u.dst.flags & DST_BALANCED)) {
41 ops->mp_alg_select_route(flp, rth, rp);
42 return 1;
43 }
44#endif
45 return 0;
46}
47
48static inline void multipath_flush(void)
49{
50#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
51 int i;
52
53 for (i = IP_MP_ALG_NONE; i <= IP_MP_ALG_MAX; i++) {
54 struct ip_mp_alg_ops *ops = ip_mp_alg_table[i];
55
56 if (ops && ops->mp_alg_flush)
57 ops->mp_alg_flush();
58 }
59#endif
60}
61
62static inline void multipath_set_nhinfo(struct rtable *rth,
63 __u32 network, __u32 netmask,
64 unsigned char prefixlen,
65 const struct fib_nh *nh)
66{
67#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
68 struct ip_mp_alg_ops *ops = ip_mp_alg_table[rth->rt_multipath_alg];
69
70 if (ops && ops->mp_alg_set_nhinfo)
71 ops->mp_alg_set_nhinfo(network, netmask, prefixlen, nh);
72#endif
73}
74
75static inline void multipath_remove(struct rtable *rth)
76{
77#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
78 struct ip_mp_alg_ops *ops = ip_mp_alg_table[rth->rt_multipath_alg];
79
80 if (ops && ops->mp_alg_remove &&
81 (rth->u.dst.flags & DST_BALANCED))
82 ops->mp_alg_remove(rth);
83#endif
84}
85
86static inline int multipath_comparekeys(const struct flowi *flp1,
87 const struct flowi *flp2)
88{
89 return flp1->fl4_dst == flp2->fl4_dst &&
90 flp1->fl4_src == flp2->fl4_src &&
91 flp1->oif == flp2->oif &&
92#ifdef CONFIG_IP_ROUTE_FWMARK
93 flp1->fl4_fwmark == flp2->fl4_fwmark &&
94#endif
95 !((flp1->fl4_tos ^ flp2->fl4_tos) &
96 (IPTOS_RT_MASK | RTO_ONLINK));
97}
98
99#endif /* _NET_IP_MP_ALG_H */
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
new file mode 100644
index 000000000000..52da5d26617a
--- /dev/null
+++ b/include/net/ip_vs.h
@@ -0,0 +1,999 @@
1/*
2 * IP Virtual Server
3 * data structure and functionality definitions
4 */
5
6#ifndef _IP_VS_H
7#define _IP_VS_H
8
9#include <asm/types.h> /* For __uXX types */
10
11#define IP_VS_VERSION_CODE 0x010201
12#define NVERSION(version) \
13 (version >> 16) & 0xFF, \
14 (version >> 8) & 0xFF, \
15 version & 0xFF
16
17/*
18 * Virtual Service Flags
19 */
20#define IP_VS_SVC_F_PERSISTENT 0x0001 /* persistent port */
21#define IP_VS_SVC_F_HASHED 0x0002 /* hashed entry */
22
23/*
24 * Destination Server Flags
25 */
26#define IP_VS_DEST_F_AVAILABLE 0x0001 /* server is available */
27#define IP_VS_DEST_F_OVERLOAD 0x0002 /* server is overloaded */
28
29/*
30 * IPVS sync daemon states
31 */
32#define IP_VS_STATE_NONE 0x0000 /* daemon is stopped */
33#define IP_VS_STATE_MASTER 0x0001 /* started as master */
34#define IP_VS_STATE_BACKUP 0x0002 /* started as backup */
35
36/*
37 * IPVS socket options
38 */
39#define IP_VS_BASE_CTL (64+1024+64) /* base */
40
41#define IP_VS_SO_SET_NONE IP_VS_BASE_CTL /* just peek */
42#define IP_VS_SO_SET_INSERT (IP_VS_BASE_CTL+1)
43#define IP_VS_SO_SET_ADD (IP_VS_BASE_CTL+2)
44#define IP_VS_SO_SET_EDIT (IP_VS_BASE_CTL+3)
45#define IP_VS_SO_SET_DEL (IP_VS_BASE_CTL+4)
46#define IP_VS_SO_SET_FLUSH (IP_VS_BASE_CTL+5)
47#define IP_VS_SO_SET_LIST (IP_VS_BASE_CTL+6)
48#define IP_VS_SO_SET_ADDDEST (IP_VS_BASE_CTL+7)
49#define IP_VS_SO_SET_DELDEST (IP_VS_BASE_CTL+8)
50#define IP_VS_SO_SET_EDITDEST (IP_VS_BASE_CTL+9)
51#define IP_VS_SO_SET_TIMEOUT (IP_VS_BASE_CTL+10)
52#define IP_VS_SO_SET_STARTDAEMON (IP_VS_BASE_CTL+11)
53#define IP_VS_SO_SET_STOPDAEMON (IP_VS_BASE_CTL+12)
54#define IP_VS_SO_SET_RESTORE (IP_VS_BASE_CTL+13)
55#define IP_VS_SO_SET_SAVE (IP_VS_BASE_CTL+14)
56#define IP_VS_SO_SET_ZERO (IP_VS_BASE_CTL+15)
57#define IP_VS_SO_SET_MAX IP_VS_SO_SET_ZERO
58
59#define IP_VS_SO_GET_VERSION IP_VS_BASE_CTL
60#define IP_VS_SO_GET_INFO (IP_VS_BASE_CTL+1)
61#define IP_VS_SO_GET_SERVICES (IP_VS_BASE_CTL+2)
62#define IP_VS_SO_GET_SERVICE (IP_VS_BASE_CTL+3)
63#define IP_VS_SO_GET_DESTS (IP_VS_BASE_CTL+4)
64#define IP_VS_SO_GET_DEST (IP_VS_BASE_CTL+5) /* not used now */
65#define IP_VS_SO_GET_TIMEOUT (IP_VS_BASE_CTL+6)
66#define IP_VS_SO_GET_DAEMON (IP_VS_BASE_CTL+7)
67#define IP_VS_SO_GET_MAX IP_VS_SO_GET_DAEMON
68
69
70/*
71 * IPVS Connection Flags
72 */
73#define IP_VS_CONN_F_FWD_MASK 0x0007 /* mask for the fwd methods */
74#define IP_VS_CONN_F_MASQ 0x0000 /* masquerading/NAT */
75#define IP_VS_CONN_F_LOCALNODE 0x0001 /* local node */
76#define IP_VS_CONN_F_TUNNEL 0x0002 /* tunneling */
77#define IP_VS_CONN_F_DROUTE 0x0003 /* direct routing */
78#define IP_VS_CONN_F_BYPASS 0x0004 /* cache bypass */
79#define IP_VS_CONN_F_SYNC 0x0020 /* entry created by sync */
80#define IP_VS_CONN_F_HASHED 0x0040 /* hashed entry */
81#define IP_VS_CONN_F_NOOUTPUT 0x0080 /* no output packets */
82#define IP_VS_CONN_F_INACTIVE 0x0100 /* not established */
83#define IP_VS_CONN_F_OUT_SEQ 0x0200 /* must do output seq adjust */
84#define IP_VS_CONN_F_IN_SEQ 0x0400 /* must do input seq adjust */
85#define IP_VS_CONN_F_SEQ_MASK 0x0600 /* in/out sequence mask */
86#define IP_VS_CONN_F_NO_CPORT 0x0800 /* no client port set yet */
87
88/* Move it to better place one day, for now keep it unique */
89#define NFC_IPVS_PROPERTY 0x10000
90
91#define IP_VS_SCHEDNAME_MAXLEN 16
92#define IP_VS_IFNAME_MAXLEN 16
93
94
95/*
96 * The struct ip_vs_service_user and struct ip_vs_dest_user are
97 * used to set IPVS rules through setsockopt.
98 */
99struct ip_vs_service_user {
100 /* virtual service addresses */
101 u_int16_t protocol;
102 u_int32_t addr; /* virtual ip address */
103 u_int16_t port;
104 u_int32_t fwmark; /* firwall mark of service */
105
106 /* virtual service options */
107 char sched_name[IP_VS_SCHEDNAME_MAXLEN];
108 unsigned flags; /* virtual service flags */
109 unsigned timeout; /* persistent timeout in sec */
110 u_int32_t netmask; /* persistent netmask */
111};
112
113
114struct ip_vs_dest_user {
115 /* destination server address */
116 u_int32_t addr;
117 u_int16_t port;
118
119 /* real server options */
120 unsigned conn_flags; /* connection flags */
121 int weight; /* destination weight */
122
123 /* thresholds for active connections */
124 u_int32_t u_threshold; /* upper threshold */
125 u_int32_t l_threshold; /* lower threshold */
126};
127
128
129/*
130 * IPVS statistics object (for user space)
131 */
132struct ip_vs_stats_user
133{
134 __u32 conns; /* connections scheduled */
135 __u32 inpkts; /* incoming packets */
136 __u32 outpkts; /* outgoing packets */
137 __u64 inbytes; /* incoming bytes */
138 __u64 outbytes; /* outgoing bytes */
139
140 __u32 cps; /* current connection rate */
141 __u32 inpps; /* current in packet rate */
142 __u32 outpps; /* current out packet rate */
143 __u32 inbps; /* current in byte rate */
144 __u32 outbps; /* current out byte rate */
145};
146
147
148/* The argument to IP_VS_SO_GET_INFO */
149struct ip_vs_getinfo {
150 /* version number */
151 unsigned int version;
152
153 /* size of connection hash table */
154 unsigned int size;
155
156 /* number of virtual services */
157 unsigned int num_services;
158};
159
160
161/* The argument to IP_VS_SO_GET_SERVICE */
162struct ip_vs_service_entry {
163 /* which service: user fills in these */
164 u_int16_t protocol;
165 u_int32_t addr; /* virtual address */
166 u_int16_t port;
167 u_int32_t fwmark; /* firwall mark of service */
168
169 /* service options */
170 char sched_name[IP_VS_SCHEDNAME_MAXLEN];
171 unsigned flags; /* virtual service flags */
172 unsigned timeout; /* persistent timeout */
173 u_int32_t netmask; /* persistent netmask */
174
175 /* number of real servers */
176 unsigned int num_dests;
177
178 /* statistics */
179 struct ip_vs_stats_user stats;
180};
181
182
183struct ip_vs_dest_entry {
184 u_int32_t addr; /* destination address */
185 u_int16_t port;
186 unsigned conn_flags; /* connection flags */
187 int weight; /* destination weight */
188
189 u_int32_t u_threshold; /* upper threshold */
190 u_int32_t l_threshold; /* lower threshold */
191
192 u_int32_t activeconns; /* active connections */
193 u_int32_t inactconns; /* inactive connections */
194 u_int32_t persistconns; /* persistent connections */
195
196 /* statistics */
197 struct ip_vs_stats_user stats;
198};
199
200
201/* The argument to IP_VS_SO_GET_DESTS */
202struct ip_vs_get_dests {
203 /* which service: user fills in these */
204 u_int16_t protocol;
205 u_int32_t addr; /* virtual address */
206 u_int16_t port;
207 u_int32_t fwmark; /* firwall mark of service */
208
209 /* number of real servers */
210 unsigned int num_dests;
211
212 /* the real servers */
213 struct ip_vs_dest_entry entrytable[0];
214};
215
216
217/* The argument to IP_VS_SO_GET_SERVICES */
218struct ip_vs_get_services {
219 /* number of virtual services */
220 unsigned int num_services;
221
222 /* service table */
223 struct ip_vs_service_entry entrytable[0];
224};
225
226
227/* The argument to IP_VS_SO_GET_TIMEOUT */
228struct ip_vs_timeout_user {
229 int tcp_timeout;
230 int tcp_fin_timeout;
231 int udp_timeout;
232};
233
234
235/* The argument to IP_VS_SO_GET_DAEMON */
236struct ip_vs_daemon_user {
237 /* sync daemon state (master/backup) */
238 int state;
239
240 /* multicast interface name */
241 char mcast_ifn[IP_VS_IFNAME_MAXLEN];
242
243 /* SyncID we belong to */
244 int syncid;
245};
246
247
248#ifdef __KERNEL__
249
250#include <linux/config.h>
251#include <linux/list.h> /* for struct list_head */
252#include <linux/spinlock.h> /* for struct rwlock_t */
253#include <linux/skbuff.h> /* for struct sk_buff */
254#include <linux/ip.h> /* for struct iphdr */
255#include <asm/atomic.h> /* for struct atomic_t */
256#include <linux/netdevice.h> /* for struct neighbour */
257#include <net/dst.h> /* for struct dst_entry */
258#include <net/tcp.h>
259#include <net/udp.h>
260#include <linux/compiler.h>
261
262
263#ifdef CONFIG_IP_VS_DEBUG
264extern int ip_vs_get_debug_level(void);
265#define IP_VS_DBG(level, msg...) \
266 do { \
267 if (level <= ip_vs_get_debug_level()) \
268 printk(KERN_DEBUG "IPVS: " msg); \
269 } while (0)
270#define IP_VS_DBG_RL(msg...) \
271 do { \
272 if (net_ratelimit()) \
273 printk(KERN_DEBUG "IPVS: " msg); \
274 } while (0)
275#define IP_VS_DBG_PKT(level, pp, skb, ofs, msg) \
276 do { \
277 if (level <= ip_vs_get_debug_level()) \
278 pp->debug_packet(pp, skb, ofs, msg); \
279 } while (0)
280#define IP_VS_DBG_RL_PKT(level, pp, skb, ofs, msg) \
281 do { \
282 if (level <= ip_vs_get_debug_level() && \
283 net_ratelimit()) \
284 pp->debug_packet(pp, skb, ofs, msg); \
285 } while (0)
286#else /* NO DEBUGGING at ALL */
287#define IP_VS_DBG(level, msg...) do {} while (0)
288#define IP_VS_DBG_RL(msg...) do {} while (0)
289#define IP_VS_DBG_PKT(level, pp, skb, ofs, msg) do {} while (0)
290#define IP_VS_DBG_RL_PKT(level, pp, skb, ofs, msg) do {} while (0)
291#endif
292
293#define IP_VS_BUG() BUG()
294#define IP_VS_ERR(msg...) printk(KERN_ERR "IPVS: " msg)
295#define IP_VS_INFO(msg...) printk(KERN_INFO "IPVS: " msg)
296#define IP_VS_WARNING(msg...) \
297 printk(KERN_WARNING "IPVS: " msg)
298#define IP_VS_ERR_RL(msg...) \
299 do { \
300 if (net_ratelimit()) \
301 printk(KERN_ERR "IPVS: " msg); \
302 } while (0)
303
304#ifdef CONFIG_IP_VS_DEBUG
305#define EnterFunction(level) \
306 do { \
307 if (level <= ip_vs_get_debug_level()) \
308 printk(KERN_DEBUG "Enter: %s, %s line %i\n", \
309 __FUNCTION__, __FILE__, __LINE__); \
310 } while (0)
311#define LeaveFunction(level) \
312 do { \
313 if (level <= ip_vs_get_debug_level()) \
314 printk(KERN_DEBUG "Leave: %s, %s line %i\n", \
315 __FUNCTION__, __FILE__, __LINE__); \
316 } while (0)
317#else
318#define EnterFunction(level) do {} while (0)
319#define LeaveFunction(level) do {} while (0)
320#endif
321
322#define IP_VS_WAIT_WHILE(expr) while (expr) { cpu_relax(); }
323
324
325/*
326 * The port number of FTP service (in network order).
327 */
328#define FTPPORT __constant_htons(21)
329#define FTPDATA __constant_htons(20)
330
331/*
332 * IPVS sysctl variables under the /proc/sys/net/ipv4/vs/
333 */
334#define NET_IPV4_VS 21
335
336enum {
337 NET_IPV4_VS_DEBUG_LEVEL=1,
338 NET_IPV4_VS_AMEMTHRESH=2,
339 NET_IPV4_VS_AMDROPRATE=3,
340 NET_IPV4_VS_DROP_ENTRY=4,
341 NET_IPV4_VS_DROP_PACKET=5,
342 NET_IPV4_VS_SECURE_TCP=6,
343 NET_IPV4_VS_TO_ES=7,
344 NET_IPV4_VS_TO_SS=8,
345 NET_IPV4_VS_TO_SR=9,
346 NET_IPV4_VS_TO_FW=10,
347 NET_IPV4_VS_TO_TW=11,
348 NET_IPV4_VS_TO_CL=12,
349 NET_IPV4_VS_TO_CW=13,
350 NET_IPV4_VS_TO_LA=14,
351 NET_IPV4_VS_TO_LI=15,
352 NET_IPV4_VS_TO_SA=16,
353 NET_IPV4_VS_TO_UDP=17,
354 NET_IPV4_VS_TO_ICMP=18,
355 NET_IPV4_VS_LBLC_EXPIRE=19,
356 NET_IPV4_VS_LBLCR_EXPIRE=20,
357 NET_IPV4_VS_CACHE_BYPASS=22,
358 NET_IPV4_VS_EXPIRE_NODEST_CONN=23,
359 NET_IPV4_VS_SYNC_THRESHOLD=24,
360 NET_IPV4_VS_NAT_ICMP_SEND=25,
361 NET_IPV4_VS_EXPIRE_QUIESCENT_TEMPLATE=26,
362 NET_IPV4_VS_LAST
363};
364
365/*
366 * TCP State Values
367 */
368enum {
369 IP_VS_TCP_S_NONE = 0,
370 IP_VS_TCP_S_ESTABLISHED,
371 IP_VS_TCP_S_SYN_SENT,
372 IP_VS_TCP_S_SYN_RECV,
373 IP_VS_TCP_S_FIN_WAIT,
374 IP_VS_TCP_S_TIME_WAIT,
375 IP_VS_TCP_S_CLOSE,
376 IP_VS_TCP_S_CLOSE_WAIT,
377 IP_VS_TCP_S_LAST_ACK,
378 IP_VS_TCP_S_LISTEN,
379 IP_VS_TCP_S_SYNACK,
380 IP_VS_TCP_S_LAST
381};
382
383/*
384 * UDP State Values
385 */
386enum {
387 IP_VS_UDP_S_NORMAL,
388 IP_VS_UDP_S_LAST,
389};
390
391/*
392 * ICMP State Values
393 */
394enum {
395 IP_VS_ICMP_S_NORMAL,
396 IP_VS_ICMP_S_LAST,
397};
398
399/*
400 * Delta sequence info structure
401 * Each ip_vs_conn has 2 (output AND input seq. changes).
402 * Only used in the VS/NAT.
403 */
404struct ip_vs_seq {
405 __u32 init_seq; /* Add delta from this seq */
406 __u32 delta; /* Delta in sequence numbers */
407 __u32 previous_delta; /* Delta in sequence numbers
408 before last resized pkt */
409};
410
411
412/*
413 * IPVS statistics object
414 */
415struct ip_vs_stats
416{
417 __u32 conns; /* connections scheduled */
418 __u32 inpkts; /* incoming packets */
419 __u32 outpkts; /* outgoing packets */
420 __u64 inbytes; /* incoming bytes */
421 __u64 outbytes; /* outgoing bytes */
422
423 __u32 cps; /* current connection rate */
424 __u32 inpps; /* current in packet rate */
425 __u32 outpps; /* current out packet rate */
426 __u32 inbps; /* current in byte rate */
427 __u32 outbps; /* current out byte rate */
428
429 spinlock_t lock; /* spin lock */
430};
431
432struct ip_vs_conn;
433struct ip_vs_app;
434
435struct ip_vs_protocol {
436 struct ip_vs_protocol *next;
437 char *name;
438 __u16 protocol;
439 int dont_defrag;
440 atomic_t appcnt; /* counter of proto app incs */
441 int *timeout_table; /* protocol timeout table */
442
443 void (*init)(struct ip_vs_protocol *pp);
444
445 void (*exit)(struct ip_vs_protocol *pp);
446
447 int (*conn_schedule)(struct sk_buff *skb,
448 struct ip_vs_protocol *pp,
449 int *verdict, struct ip_vs_conn **cpp);
450
451 struct ip_vs_conn *
452 (*conn_in_get)(const struct sk_buff *skb,
453 struct ip_vs_protocol *pp,
454 const struct iphdr *iph,
455 unsigned int proto_off,
456 int inverse);
457
458 struct ip_vs_conn *
459 (*conn_out_get)(const struct sk_buff *skb,
460 struct ip_vs_protocol *pp,
461 const struct iphdr *iph,
462 unsigned int proto_off,
463 int inverse);
464
465 int (*snat_handler)(struct sk_buff **pskb,
466 struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
467
468 int (*dnat_handler)(struct sk_buff **pskb,
469 struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
470
471 int (*csum_check)(struct sk_buff *skb, struct ip_vs_protocol *pp);
472
473 const char *(*state_name)(int state);
474
475 int (*state_transition)(struct ip_vs_conn *cp, int direction,
476 const struct sk_buff *skb,
477 struct ip_vs_protocol *pp);
478
479 int (*register_app)(struct ip_vs_app *inc);
480
481 void (*unregister_app)(struct ip_vs_app *inc);
482
483 int (*app_conn_bind)(struct ip_vs_conn *cp);
484
485 void (*debug_packet)(struct ip_vs_protocol *pp,
486 const struct sk_buff *skb,
487 int offset,
488 const char *msg);
489
490 void (*timeout_change)(struct ip_vs_protocol *pp, int flags);
491
492 int (*set_state_timeout)(struct ip_vs_protocol *pp, char *sname, int to);
493};
494
495extern struct ip_vs_protocol * ip_vs_proto_get(unsigned short proto);
496
497/*
498 * IP_VS structure allocated for each dynamically scheduled connection
499 */
500struct ip_vs_conn {
501 struct list_head c_list; /* hashed list heads */
502
503 /* Protocol, addresses and port numbers */
504 __u32 caddr; /* client address */
505 __u32 vaddr; /* virtual address */
506 __u32 daddr; /* destination address */
507 __u16 cport;
508 __u16 vport;
509 __u16 dport;
510 __u16 protocol; /* Which protocol (TCP/UDP) */
511
512 /* counter and timer */
513 atomic_t refcnt; /* reference count */
514 struct timer_list timer; /* Expiration timer */
515 volatile unsigned long timeout; /* timeout */
516
517 /* Flags and state transition */
518 spinlock_t lock; /* lock for state transition */
519 volatile __u16 flags; /* status flags */
520 volatile __u16 state; /* state info */
521
522 /* Control members */
523 struct ip_vs_conn *control; /* Master control connection */
524 atomic_t n_control; /* Number of controlled ones */
525 struct ip_vs_dest *dest; /* real server */
526 atomic_t in_pkts; /* incoming packet counter */
527
528 /* packet transmitter for different forwarding methods. If it
529 mangles the packet, it must return NF_DROP or better NF_STOLEN,
530 otherwise this must be changed to a sk_buff **.
531 */
532 int (*packet_xmit)(struct sk_buff *skb, struct ip_vs_conn *cp,
533 struct ip_vs_protocol *pp);
534
535 /* Note: we can group the following members into a structure,
536 in order to save more space, and the following members are
537 only used in VS/NAT anyway */
538 struct ip_vs_app *app; /* bound ip_vs_app object */
539 void *app_data; /* Application private data */
540 struct ip_vs_seq in_seq; /* incoming seq. struct */
541 struct ip_vs_seq out_seq; /* outgoing seq. struct */
542};
543
544
545/*
546 * The information about the virtual service offered to the net
547 * and the forwarding entries
548 */
549struct ip_vs_service {
550 struct list_head s_list; /* for normal service table */
551 struct list_head f_list; /* for fwmark-based service table */
552 atomic_t refcnt; /* reference counter */
553 atomic_t usecnt; /* use counter */
554
555 __u16 protocol; /* which protocol (TCP/UDP) */
556 __u32 addr; /* IP address for virtual service */
557 __u16 port; /* port number for the service */
558 __u32 fwmark; /* firewall mark of the service */
559 unsigned flags; /* service status flags */
560 unsigned timeout; /* persistent timeout in ticks */
561 __u32 netmask; /* grouping granularity */
562
563 struct list_head destinations; /* real server d-linked list */
564 __u32 num_dests; /* number of servers */
565 struct ip_vs_stats stats; /* statistics for the service */
566 struct ip_vs_app *inc; /* bind conns to this app inc */
567
568 /* for scheduling */
569 struct ip_vs_scheduler *scheduler; /* bound scheduler object */
570 rwlock_t sched_lock; /* lock sched_data */
571 void *sched_data; /* scheduler application data */
572};
573
574
575/*
576 * The real server destination forwarding entry
577 * with ip address, port number, and so on.
578 */
579struct ip_vs_dest {
580 struct list_head n_list; /* for the dests in the service */
581 struct list_head d_list; /* for table with all the dests */
582
583 __u32 addr; /* IP address of the server */
584 __u16 port; /* port number of the server */
585 volatile unsigned flags; /* dest status flags */
586 atomic_t conn_flags; /* flags to copy to conn */
587 atomic_t weight; /* server weight */
588
589 atomic_t refcnt; /* reference counter */
590 struct ip_vs_stats stats; /* statistics */
591
592 /* connection counters and thresholds */
593 atomic_t activeconns; /* active connections */
594 atomic_t inactconns; /* inactive connections */
595 atomic_t persistconns; /* persistent connections */
596 __u32 u_threshold; /* upper threshold */
597 __u32 l_threshold; /* lower threshold */
598
599 /* for destination cache */
600 spinlock_t dst_lock; /* lock of dst_cache */
601 struct dst_entry *dst_cache; /* destination cache entry */
602 u32 dst_rtos; /* RT_TOS(tos) for dst */
603
604 /* for virtual service */
605 struct ip_vs_service *svc; /* service it belongs to */
606 __u16 protocol; /* which protocol (TCP/UDP) */
607 __u32 vaddr; /* virtual IP address */
608 __u16 vport; /* virtual port number */
609 __u32 vfwmark; /* firewall mark of service */
610};
611
612
613/*
614 * The scheduler object
615 */
616struct ip_vs_scheduler {
617 struct list_head n_list; /* d-linked list head */
618 char *name; /* scheduler name */
619 atomic_t refcnt; /* reference counter */
620 struct module *module; /* THIS_MODULE/NULL */
621
622 /* scheduler initializing service */
623 int (*init_service)(struct ip_vs_service *svc);
624 /* scheduling service finish */
625 int (*done_service)(struct ip_vs_service *svc);
626 /* scheduler updating service */
627 int (*update_service)(struct ip_vs_service *svc);
628
629 /* selecting a server from the given service */
630 struct ip_vs_dest* (*schedule)(struct ip_vs_service *svc,
631 const struct sk_buff *skb);
632};
633
634
635/*
636 * The application module object (a.k.a. app incarnation)
637 */
638struct ip_vs_app
639{
640 struct list_head a_list; /* member in app list */
641 int type; /* IP_VS_APP_TYPE_xxx */
642 char *name; /* application module name */
643 __u16 protocol;
644 struct module *module; /* THIS_MODULE/NULL */
645 struct list_head incs_list; /* list of incarnations */
646
647 /* members for application incarnations */
648 struct list_head p_list; /* member in proto app list */
649 struct ip_vs_app *app; /* its real application */
650 __u16 port; /* port number in net order */
651 atomic_t usecnt; /* usage counter */
652
653 /* output hook: return false if can't linearize. diff set for TCP. */
654 int (*pkt_out)(struct ip_vs_app *, struct ip_vs_conn *,
655 struct sk_buff **, int *diff);
656
657 /* input hook: return false if can't linearize. diff set for TCP. */
658 int (*pkt_in)(struct ip_vs_app *, struct ip_vs_conn *,
659 struct sk_buff **, int *diff);
660
661 /* ip_vs_app initializer */
662 int (*init_conn)(struct ip_vs_app *, struct ip_vs_conn *);
663
664 /* ip_vs_app finish */
665 int (*done_conn)(struct ip_vs_app *, struct ip_vs_conn *);
666
667
668 /* not used now */
669 int (*bind_conn)(struct ip_vs_app *, struct ip_vs_conn *,
670 struct ip_vs_protocol *);
671
672 void (*unbind_conn)(struct ip_vs_app *, struct ip_vs_conn *);
673
674 int * timeout_table;
675 int * timeouts;
676 int timeouts_size;
677
678 int (*conn_schedule)(struct sk_buff *skb, struct ip_vs_app *app,
679 int *verdict, struct ip_vs_conn **cpp);
680
681 struct ip_vs_conn *
682 (*conn_in_get)(const struct sk_buff *skb, struct ip_vs_app *app,
683 const struct iphdr *iph, unsigned int proto_off,
684 int inverse);
685
686 struct ip_vs_conn *
687 (*conn_out_get)(const struct sk_buff *skb, struct ip_vs_app *app,
688 const struct iphdr *iph, unsigned int proto_off,
689 int inverse);
690
691 int (*state_transition)(struct ip_vs_conn *cp, int direction,
692 const struct sk_buff *skb,
693 struct ip_vs_app *app);
694
695 void (*timeout_change)(struct ip_vs_app *app, int flags);
696};
697
698
699/*
700 * IPVS core functions
701 * (from ip_vs_core.c)
702 */
703extern const char *ip_vs_proto_name(unsigned proto);
704extern void ip_vs_init_hash_table(struct list_head *table, int rows);
705#define IP_VS_INIT_HASH_TABLE(t) ip_vs_init_hash_table(t, sizeof(t)/sizeof(t[0]))
706
707#define IP_VS_APP_TYPE_UNSPEC 0
708#define IP_VS_APP_TYPE_FTP 1
709
710/*
711 * ip_vs_conn handling functions
712 * (from ip_vs_conn.c)
713 */
714
715/*
716 * IPVS connection entry hash table
717 */
718#ifndef CONFIG_IP_VS_TAB_BITS
719#define CONFIG_IP_VS_TAB_BITS 12
720#endif
721/* make sure that IP_VS_CONN_TAB_BITS is located in [8, 20] */
722#if CONFIG_IP_VS_TAB_BITS < 8
723#define IP_VS_CONN_TAB_BITS 8
724#endif
725#if CONFIG_IP_VS_TAB_BITS > 20
726#define IP_VS_CONN_TAB_BITS 20
727#endif
728#if 8 <= CONFIG_IP_VS_TAB_BITS && CONFIG_IP_VS_TAB_BITS <= 20
729#define IP_VS_CONN_TAB_BITS CONFIG_IP_VS_TAB_BITS
730#endif
731#define IP_VS_CONN_TAB_SIZE (1 << IP_VS_CONN_TAB_BITS)
732#define IP_VS_CONN_TAB_MASK (IP_VS_CONN_TAB_SIZE - 1)
733
734enum {
735 IP_VS_DIR_INPUT = 0,
736 IP_VS_DIR_OUTPUT,
737 IP_VS_DIR_INPUT_ONLY,
738 IP_VS_DIR_LAST,
739};
740
741extern struct ip_vs_conn *ip_vs_conn_in_get
742(int protocol, __u32 s_addr, __u16 s_port, __u32 d_addr, __u16 d_port);
743extern struct ip_vs_conn *ip_vs_conn_out_get
744(int protocol, __u32 s_addr, __u16 s_port, __u32 d_addr, __u16 d_port);
745
746/* put back the conn without restarting its timer */
747static inline void __ip_vs_conn_put(struct ip_vs_conn *cp)
748{
749 atomic_dec(&cp->refcnt);
750}
751extern void ip_vs_conn_put(struct ip_vs_conn *cp);
752extern void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __u16 cport);
753
754extern struct ip_vs_conn *
755ip_vs_conn_new(int proto, __u32 caddr, __u16 cport, __u32 vaddr, __u16 vport,
756 __u32 daddr, __u16 dport, unsigned flags,
757 struct ip_vs_dest *dest);
758extern void ip_vs_conn_expire_now(struct ip_vs_conn *cp);
759
760extern const char * ip_vs_state_name(__u16 proto, int state);
761
762extern void ip_vs_tcp_conn_listen(struct ip_vs_conn *cp);
763extern int ip_vs_check_template(struct ip_vs_conn *ct);
764extern void ip_vs_secure_tcp_set(int on);
765extern void ip_vs_random_dropentry(void);
766extern int ip_vs_conn_init(void);
767extern void ip_vs_conn_cleanup(void);
768
769static inline void ip_vs_control_del(struct ip_vs_conn *cp)
770{
771 struct ip_vs_conn *ctl_cp = cp->control;
772 if (!ctl_cp) {
773 IP_VS_ERR("request control DEL for uncontrolled: "
774 "%d.%d.%d.%d:%d to %d.%d.%d.%d:%d\n",
775 NIPQUAD(cp->caddr),ntohs(cp->cport),
776 NIPQUAD(cp->vaddr),ntohs(cp->vport));
777 return;
778 }
779
780 IP_VS_DBG(7, "DELeting control for: "
781 "cp.dst=%d.%d.%d.%d:%d ctl_cp.dst=%d.%d.%d.%d:%d\n",
782 NIPQUAD(cp->caddr),ntohs(cp->cport),
783 NIPQUAD(ctl_cp->caddr),ntohs(ctl_cp->cport));
784
785 cp->control = NULL;
786 if (atomic_read(&ctl_cp->n_control) == 0) {
787 IP_VS_ERR("BUG control DEL with n=0 : "
788 "%d.%d.%d.%d:%d to %d.%d.%d.%d:%d\n",
789 NIPQUAD(cp->caddr),ntohs(cp->cport),
790 NIPQUAD(cp->vaddr),ntohs(cp->vport));
791 return;
792 }
793 atomic_dec(&ctl_cp->n_control);
794}
795
796static inline void
797ip_vs_control_add(struct ip_vs_conn *cp, struct ip_vs_conn *ctl_cp)
798{
799 if (cp->control) {
800 IP_VS_ERR("request control ADD for already controlled: "
801 "%d.%d.%d.%d:%d to %d.%d.%d.%d:%d\n",
802 NIPQUAD(cp->caddr),ntohs(cp->cport),
803 NIPQUAD(cp->vaddr),ntohs(cp->vport));
804 ip_vs_control_del(cp);
805 }
806
807 IP_VS_DBG(7, "ADDing control for: "
808 "cp.dst=%d.%d.%d.%d:%d ctl_cp.dst=%d.%d.%d.%d:%d\n",
809 NIPQUAD(cp->caddr),ntohs(cp->cport),
810 NIPQUAD(ctl_cp->caddr),ntohs(ctl_cp->cport));
811
812 cp->control = ctl_cp;
813 atomic_inc(&ctl_cp->n_control);
814}
815
816
817/*
818 * IPVS application functions
819 * (from ip_vs_app.c)
820 */
821#define IP_VS_APP_MAX_PORTS 8
822extern int register_ip_vs_app(struct ip_vs_app *app);
823extern void unregister_ip_vs_app(struct ip_vs_app *app);
824extern int ip_vs_bind_app(struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
825extern void ip_vs_unbind_app(struct ip_vs_conn *cp);
826extern int
827register_ip_vs_app_inc(struct ip_vs_app *app, __u16 proto, __u16 port);
828extern int ip_vs_app_inc_get(struct ip_vs_app *inc);
829extern void ip_vs_app_inc_put(struct ip_vs_app *inc);
830
831extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff **pskb);
832extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff **pskb);
833extern int ip_vs_skb_replace(struct sk_buff *skb, int pri,
834 char *o_buf, int o_len, char *n_buf, int n_len);
835extern int ip_vs_app_init(void);
836extern void ip_vs_app_cleanup(void);
837
838
839/*
840 * IPVS protocol functions (from ip_vs_proto.c)
841 */
842extern int ip_vs_protocol_init(void);
843extern void ip_vs_protocol_cleanup(void);
844extern void ip_vs_protocol_timeout_change(int flags);
845extern int *ip_vs_create_timeout_table(int *table, int size);
846extern int
847ip_vs_set_state_timeout(int *table, int num, char **names, char *name, int to);
848extern void
849ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
850 int offset, const char *msg);
851
852extern struct ip_vs_protocol ip_vs_protocol_tcp;
853extern struct ip_vs_protocol ip_vs_protocol_udp;
854extern struct ip_vs_protocol ip_vs_protocol_icmp;
855extern struct ip_vs_protocol ip_vs_protocol_esp;
856extern struct ip_vs_protocol ip_vs_protocol_ah;
857
858
859/*
860 * Registering/unregistering scheduler functions
861 * (from ip_vs_sched.c)
862 */
863extern int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
864extern int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
865extern int ip_vs_bind_scheduler(struct ip_vs_service *svc,
866 struct ip_vs_scheduler *scheduler);
867extern int ip_vs_unbind_scheduler(struct ip_vs_service *svc);
868extern struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name);
869extern void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler);
870extern struct ip_vs_conn *
871ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb);
872extern int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
873 struct ip_vs_protocol *pp);
874
875
876/*
877 * IPVS control data and functions (from ip_vs_ctl.c)
878 */
879extern int sysctl_ip_vs_cache_bypass;
880extern int sysctl_ip_vs_expire_nodest_conn;
881extern int sysctl_ip_vs_expire_quiescent_template;
882extern int sysctl_ip_vs_sync_threshold[2];
883extern int sysctl_ip_vs_nat_icmp_send;
884extern struct ip_vs_stats ip_vs_stats;
885
886extern struct ip_vs_service *
887ip_vs_service_get(__u32 fwmark, __u16 protocol, __u32 vaddr, __u16 vport);
888
889static inline void ip_vs_service_put(struct ip_vs_service *svc)
890{
891 atomic_dec(&svc->usecnt);
892}
893
894extern struct ip_vs_dest *
895ip_vs_lookup_real_service(__u16 protocol, __u32 daddr, __u16 dport);
896extern int ip_vs_use_count_inc(void);
897extern void ip_vs_use_count_dec(void);
898extern int ip_vs_control_init(void);
899extern void ip_vs_control_cleanup(void);
900
901
902/*
903 * IPVS sync daemon data and function prototypes
904 * (from ip_vs_sync.c)
905 */
906extern volatile int ip_vs_sync_state;
907extern volatile int ip_vs_master_syncid;
908extern volatile int ip_vs_backup_syncid;
909extern char ip_vs_master_mcast_ifn[IP_VS_IFNAME_MAXLEN];
910extern char ip_vs_backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
911extern int start_sync_thread(int state, char *mcast_ifn, __u8 syncid);
912extern int stop_sync_thread(int state);
913extern void ip_vs_sync_conn(struct ip_vs_conn *cp);
914
915
916/*
917 * IPVS rate estimator prototypes (from ip_vs_est.c)
918 */
919extern int ip_vs_new_estimator(struct ip_vs_stats *stats);
920extern void ip_vs_kill_estimator(struct ip_vs_stats *stats);
921extern void ip_vs_zero_estimator(struct ip_vs_stats *stats);
922
923/*
924 * Various IPVS packet transmitters (from ip_vs_xmit.c)
925 */
926extern int ip_vs_null_xmit
927(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
928extern int ip_vs_bypass_xmit
929(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
930extern int ip_vs_nat_xmit
931(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
932extern int ip_vs_tunnel_xmit
933(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
934extern int ip_vs_dr_xmit
935(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
936extern int ip_vs_icmp_xmit
937(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp, int offset);
938extern void ip_vs_dst_reset(struct ip_vs_dest *dest);
939
940
941/*
942 * This is a simple mechanism to ignore packets when
943 * we are loaded. Just set ip_vs_drop_rate to 'n' and
944 * we start to drop 1/rate of the packets
945 */
946extern int ip_vs_drop_rate;
947extern int ip_vs_drop_counter;
948
949static __inline__ int ip_vs_todrop(void)
950{
951 if (!ip_vs_drop_rate) return 0;
952 if (--ip_vs_drop_counter > 0) return 0;
953 ip_vs_drop_counter = ip_vs_drop_rate;
954 return 1;
955}
956
957/*
958 * ip_vs_fwd_tag returns the forwarding tag of the connection
959 */
960#define IP_VS_FWD_METHOD(cp) (cp->flags & IP_VS_CONN_F_FWD_MASK)
961
962extern __inline__ char ip_vs_fwd_tag(struct ip_vs_conn *cp)
963{
964 char fwd;
965
966 switch (IP_VS_FWD_METHOD(cp)) {
967 case IP_VS_CONN_F_MASQ:
968 fwd = 'M'; break;
969 case IP_VS_CONN_F_LOCALNODE:
970 fwd = 'L'; break;
971 case IP_VS_CONN_F_TUNNEL:
972 fwd = 'T'; break;
973 case IP_VS_CONN_F_DROUTE:
974 fwd = 'R'; break;
975 case IP_VS_CONN_F_BYPASS:
976 fwd = 'B'; break;
977 default:
978 fwd = '?'; break;
979 }
980 return fwd;
981}
982
983extern int ip_vs_make_skb_writable(struct sk_buff **pskb, int len);
984extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
985 struct ip_vs_conn *cp, int dir);
986
987extern u16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
988
989static inline u16 ip_vs_check_diff(u32 old, u32 new, u16 oldsum)
990{
991 u32 diff[2] = { old, new };
992
993 return csum_fold(csum_partial((char *) diff, sizeof(diff),
994 oldsum ^ 0xFFFF));
995}
996
997#endif /* __KERNEL__ */
998
999#endif /* _IP_VS_H */
diff --git a/include/net/ipcomp.h b/include/net/ipcomp.h
new file mode 100644
index 000000000000..e651a57ecdd5
--- /dev/null
+++ b/include/net/ipcomp.h
@@ -0,0 +1,11 @@
1#ifndef _NET_IPCOMP_H
2#define _NET_IPCOMP_H
3
4#define IPCOMP_SCRATCH_SIZE 65400
5
6struct ipcomp_data {
7 u16 threshold;
8 struct crypto_tfm **tfms;
9};
10
11#endif
diff --git a/include/net/ipconfig.h b/include/net/ipconfig.h
new file mode 100644
index 000000000000..2a1fe996fbc6
--- /dev/null
+++ b/include/net/ipconfig.h
@@ -0,0 +1,27 @@
1/*
2 * $Id: ipconfig.h,v 1.4 2001/04/30 04:51:46 davem Exp $
3 *
4 * Copyright (C) 1997 Martin Mares
5 *
6 * Automatic IP Layer Configuration
7 */
8
9/* The following are initdata: */
10
11extern int ic_proto_enabled; /* Protocols enabled (see IC_xxx) */
12extern int ic_set_manually; /* IPconfig parameters set manually */
13
14extern u32 ic_myaddr; /* My IP address */
15extern u32 ic_gateway; /* Gateway IP address */
16
17extern u32 ic_servaddr; /* Boot server IP address */
18
19extern u32 root_server_addr; /* Address of NFS server */
20extern u8 root_server_path[]; /* Path to mount as root */
21
22
23/* bits in ic_proto_{enabled,used} */
24#define IC_PROTO 0xFF /* Protocols mask: */
25#define IC_BOOTP 0x01 /* BOOTP (or DHCP, see below) */
26#define IC_RARP 0x02 /* RARP */
27#define IC_USE_DHCP 0x100 /* If on, use DHCP instead of BOOTP */
diff --git a/include/net/ipip.h b/include/net/ipip.h
new file mode 100644
index 000000000000..f490c3cbe377
--- /dev/null
+++ b/include/net/ipip.h
@@ -0,0 +1,51 @@
1#ifndef __NET_IPIP_H
2#define __NET_IPIP_H 1
3
4#include <linux/if_tunnel.h>
5
6/* Keep error state on tunnel for 30 sec */
7#define IPTUNNEL_ERR_TIMEO (30*HZ)
8
9struct ip_tunnel
10{
11 struct ip_tunnel *next;
12 struct net_device *dev;
13 struct net_device_stats stat;
14
15 int recursion; /* Depth of hard_start_xmit recursion */
16 int err_count; /* Number of arrived ICMP errors */
17 unsigned long err_time; /* Time when the last ICMP error arrived */
18
19 /* These four fields used only by GRE */
20 __u32 i_seqno; /* The last seen seqno */
21 __u32 o_seqno; /* The last output seqno */
22 int hlen; /* Precalculated GRE header length */
23 int mlink;
24
25 struct ip_tunnel_parm parms;
26};
27
28#define IPTUNNEL_XMIT() do { \
29 int err; \
30 int pkt_len = skb->len; \
31 \
32 skb->ip_summed = CHECKSUM_NONE; \
33 iph->tot_len = htons(skb->len); \
34 ip_select_ident(iph, &rt->u.dst, NULL); \
35 ip_send_check(iph); \
36 \
37 err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, dst_output);\
38 if (err == NET_XMIT_SUCCESS || err == NET_XMIT_CN) { \
39 stats->tx_bytes += pkt_len; \
40 stats->tx_packets++; \
41 } else { \
42 stats->tx_errors++; \
43 stats->tx_aborted_errors++; \
44 } \
45} while (0)
46
47
48extern int sit_init(void);
49extern void sit_cleanup(void);
50
51#endif
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
new file mode 100644
index 000000000000..87c45cbfbaf6
--- /dev/null
+++ b/include/net/ipv6.h
@@ -0,0 +1,472 @@
1/*
2 * Linux INET6 implementation
3 *
4 * Authors:
5 * Pedro Roque <roque@di.fc.ul.pt>
6 *
7 * $Id: ipv6.h,v 1.1 2002/05/20 15:13:07 jgrimm Exp $
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14
15#ifndef _NET_IPV6_H
16#define _NET_IPV6_H
17
18#include <linux/ipv6.h>
19#include <linux/hardirq.h>
20#include <net/ndisc.h>
21#include <net/flow.h>
22#include <net/snmp.h>
23
24#define SIN6_LEN_RFC2133 24
25
26#define IPV6_MAXPLEN 65535
27
28/*
29 * NextHeader field of IPv6 header
30 */
31
32#define NEXTHDR_HOP 0 /* Hop-by-hop option header. */
33#define NEXTHDR_TCP 6 /* TCP segment. */
34#define NEXTHDR_UDP 17 /* UDP message. */
35#define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */
36#define NEXTHDR_ROUTING 43 /* Routing header. */
37#define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */
38#define NEXTHDR_ESP 50 /* Encapsulating security payload. */
39#define NEXTHDR_AUTH 51 /* Authentication header. */
40#define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
41#define NEXTHDR_NONE 59 /* No next header */
42#define NEXTHDR_DEST 60 /* Destination options header. */
43
44#define NEXTHDR_MAX 255
45
46
47
48#define IPV6_DEFAULT_HOPLIMIT 64
49#define IPV6_DEFAULT_MCASTHOPS 1
50
51/*
52 * Addr type
53 *
54 * type - unicast | multicast
55 * scope - local | site | global
56 * v4 - compat
57 * v4mapped
58 * any
59 * loopback
60 */
61
62#define IPV6_ADDR_ANY 0x0000U
63
64#define IPV6_ADDR_UNICAST 0x0001U
65#define IPV6_ADDR_MULTICAST 0x0002U
66
67#define IPV6_ADDR_LOOPBACK 0x0010U
68#define IPV6_ADDR_LINKLOCAL 0x0020U
69#define IPV6_ADDR_SITELOCAL 0x0040U
70
71#define IPV6_ADDR_COMPATv4 0x0080U
72
73#define IPV6_ADDR_SCOPE_MASK 0x00f0U
74
75#define IPV6_ADDR_MAPPED 0x1000U
76#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
77
78/*
79 * Addr scopes
80 */
81#ifdef __KERNEL__
82#define IPV6_ADDR_MC_SCOPE(a) \
83 ((a)->s6_addr[1] & 0x0f) /* nonstandard */
84#define __IPV6_ADDR_SCOPE_INVALID -1
85#endif
86#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
87#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
88#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
89#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08
90#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
91
92/*
93 * fragmentation header
94 */
95
96struct frag_hdr {
97 unsigned char nexthdr;
98 unsigned char reserved;
99 unsigned short frag_off;
100 __u32 identification;
101};
102
103#define IP6_MF 0x0001
104
105#ifdef __KERNEL__
106
107#include <net/sock.h>
108
109/* sysctls */
110extern int sysctl_ipv6_bindv6only;
111extern int sysctl_mld_max_msf;
112
113/* MIBs */
114DECLARE_SNMP_STAT(struct ipstats_mib, ipv6_statistics);
115#define IP6_INC_STATS(field) SNMP_INC_STATS(ipv6_statistics, field)
116#define IP6_INC_STATS_BH(field) SNMP_INC_STATS_BH(ipv6_statistics, field)
117#define IP6_INC_STATS_USER(field) SNMP_INC_STATS_USER(ipv6_statistics, field)
118DECLARE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics);
119#define ICMP6_INC_STATS(idev, field) ({ \
120 struct inet6_dev *_idev = (idev); \
121 if (likely(_idev != NULL)) \
122 SNMP_INC_STATS(idev->stats.icmpv6, field); \
123 SNMP_INC_STATS(icmpv6_statistics, field); \
124})
125#define ICMP6_INC_STATS_BH(idev, field) ({ \
126 struct inet6_dev *_idev = (idev); \
127 if (likely(_idev != NULL)) \
128 SNMP_INC_STATS_BH((_idev)->stats.icmpv6, field); \
129 SNMP_INC_STATS_BH(icmpv6_statistics, field); \
130})
131#define ICMP6_INC_STATS_USER(idev, field) ({ \
132 struct inet6_dev *_idev = (idev); \
133 if (likely(_idev != NULL)) \
134 SNMP_INC_STATS_USER(_idev->stats.icmpv6, field); \
135 SNMP_INC_STATS_USER(icmpv6_statistics, field); \
136})
137#define ICMP6_INC_STATS_OFFSET_BH(idev, field, offset) ({ \
138 struct inet6_dev *_idev = idev; \
139 __typeof__(offset) _offset = (offset); \
140 if (likely(_idev != NULL)) \
141 SNMP_INC_STATS_OFFSET_BH(_idev->stats.icmpv6, field, _offset); \
142 SNMP_INC_STATS_OFFSET_BH(icmpv6_statistics, field, _offset); \
143})
144DECLARE_SNMP_STAT(struct udp_mib, udp_stats_in6);
145#define UDP6_INC_STATS(field) SNMP_INC_STATS(udp_stats_in6, field)
146#define UDP6_INC_STATS_BH(field) SNMP_INC_STATS_BH(udp_stats_in6, field)
147#define UDP6_INC_STATS_USER(field) SNMP_INC_STATS_USER(udp_stats_in6, field)
148extern atomic_t inet6_sock_nr;
149
150int snmp6_register_dev(struct inet6_dev *idev);
151int snmp6_unregister_dev(struct inet6_dev *idev);
152int snmp6_alloc_dev(struct inet6_dev *idev);
153int snmp6_free_dev(struct inet6_dev *idev);
154int snmp6_mib_init(void *ptr[2], size_t mibsize, size_t mibalign);
155void snmp6_mib_free(void *ptr[2]);
156
157struct ip6_ra_chain
158{
159 struct ip6_ra_chain *next;
160 struct sock *sk;
161 int sel;
162 void (*destructor)(struct sock *);
163};
164
165extern struct ip6_ra_chain *ip6_ra_chain;
166extern rwlock_t ip6_ra_lock;
167
168/*
169 This structure is prepared by protocol, when parsing
170 ancillary data and passed to IPv6.
171 */
172
173struct ipv6_txoptions
174{
175 /* Length of this structure */
176 int tot_len;
177
178 /* length of extension headers */
179
180 __u16 opt_flen; /* after fragment hdr */
181 __u16 opt_nflen; /* before fragment hdr */
182
183 struct ipv6_opt_hdr *hopopt;
184 struct ipv6_opt_hdr *dst0opt;
185 struct ipv6_rt_hdr *srcrt; /* Routing Header */
186 struct ipv6_opt_hdr *auth;
187 struct ipv6_opt_hdr *dst1opt;
188
189 /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */
190};
191
192struct ip6_flowlabel
193{
194 struct ip6_flowlabel *next;
195 u32 label;
196 struct in6_addr dst;
197 struct ipv6_txoptions *opt;
198 atomic_t users;
199 unsigned long linger;
200 u8 share;
201 u32 owner;
202 unsigned long lastuse;
203 unsigned long expires;
204};
205
206#define IPV6_FLOWINFO_MASK __constant_htonl(0x0FFFFFFF)
207#define IPV6_FLOWLABEL_MASK __constant_htonl(0x000FFFFF)
208
209struct ipv6_fl_socklist
210{
211 struct ipv6_fl_socklist *next;
212 struct ip6_flowlabel *fl;
213};
214
215extern struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, u32 label);
216extern struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
217 struct ip6_flowlabel * fl,
218 struct ipv6_txoptions * fopt);
219extern void fl6_free_socklist(struct sock *sk);
220extern int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
221extern void ip6_flowlabel_init(void);
222extern void ip6_flowlabel_cleanup(void);
223
224static inline void fl6_sock_release(struct ip6_flowlabel *fl)
225{
226 if (fl)
227 atomic_dec(&fl->users);
228}
229
230extern int ip6_ra_control(struct sock *sk, int sel,
231 void (*destructor)(struct sock *));
232
233
234extern int ipv6_parse_hopopts(struct sk_buff *skb, int);
235
236extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
237
238extern int ip6_frag_nqueues;
239extern atomic_t ip6_frag_mem;
240
241#define IPV6_FRAG_TIMEOUT (60*HZ) /* 60 seconds */
242
243/*
244 * Function prototype for build_xmit
245 */
246
247typedef int (*inet_getfrag_t) (const void *data,
248 struct in6_addr *addr,
249 char *,
250 unsigned int, unsigned int);
251
252
253extern int ipv6_addr_type(const struct in6_addr *addr);
254
255static inline int ipv6_addr_scope(const struct in6_addr *addr)
256{
257 return ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK;
258}
259
260static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2)
261{
262 return memcmp((const void *) a1, (const void *) a2, sizeof(struct in6_addr));
263}
264
265static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
266{
267 memcpy((void *) a1, (const void *) a2, sizeof(struct in6_addr));
268}
269
270static inline void ipv6_addr_prefix(struct in6_addr *pfx,
271 const struct in6_addr *addr,
272 int plen)
273{
274 /* caller must guarantee 0 <= plen <= 128 */
275 int o = plen >> 3,
276 b = plen & 0x7;
277
278 memcpy(pfx->s6_addr, addr, o);
279 if (b != 0) {
280 pfx->s6_addr[o] = addr->s6_addr[o] & (0xff00 >> b);
281 o++;
282 }
283 if (o < 16)
284 memset(pfx->s6_addr + o, 0, 16 - o);
285}
286
287#ifndef __HAVE_ARCH_ADDR_SET
288static inline void ipv6_addr_set(struct in6_addr *addr,
289 __u32 w1, __u32 w2,
290 __u32 w3, __u32 w4)
291{
292 addr->s6_addr32[0] = w1;
293 addr->s6_addr32[1] = w2;
294 addr->s6_addr32[2] = w3;
295 addr->s6_addr32[3] = w4;
296}
297#endif
298
299static inline int ipv6_addr_equal(const struct in6_addr *a1,
300 const struct in6_addr *a2)
301{
302 return (a1->s6_addr32[0] == a2->s6_addr32[0] &&
303 a1->s6_addr32[1] == a2->s6_addr32[1] &&
304 a1->s6_addr32[2] == a2->s6_addr32[2] &&
305 a1->s6_addr32[3] == a2->s6_addr32[3]);
306}
307
308static inline int __ipv6_prefix_equal(const u32 *a1, const u32 *a2,
309 unsigned int prefixlen)
310{
311 unsigned pdw, pbi;
312
313 /* check complete u32 in prefix */
314 pdw = prefixlen >> 5;
315 if (pdw && memcmp(a1, a2, pdw << 2))
316 return 0;
317
318 /* check incomplete u32 in prefix */
319 pbi = prefixlen & 0x1f;
320 if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi))))
321 return 0;
322
323 return 1;
324}
325
326static inline int ipv6_prefix_equal(const struct in6_addr *a1,
327 const struct in6_addr *a2,
328 unsigned int prefixlen)
329{
330 return __ipv6_prefix_equal(a1->s6_addr32, a2->s6_addr32,
331 prefixlen);
332}
333
334static inline int ipv6_addr_any(const struct in6_addr *a)
335{
336 return ((a->s6_addr32[0] | a->s6_addr32[1] |
337 a->s6_addr32[2] | a->s6_addr32[3] ) == 0);
338}
339
340/*
341 * Prototypes exported by ipv6
342 */
343
344/*
345 * rcv function (called from netdevice level)
346 */
347
348extern int ipv6_rcv(struct sk_buff *skb,
349 struct net_device *dev,
350 struct packet_type *pt);
351
352/*
353 * upper-layer output functions
354 */
355extern int ip6_xmit(struct sock *sk,
356 struct sk_buff *skb,
357 struct flowi *fl,
358 struct ipv6_txoptions *opt,
359 int ipfragok);
360
361extern int ip6_nd_hdr(struct sock *sk,
362 struct sk_buff *skb,
363 struct net_device *dev,
364 struct in6_addr *saddr,
365 struct in6_addr *daddr,
366 int proto, int len);
367
368extern int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
369
370extern int ip6_append_data(struct sock *sk,
371 int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb),
372 void *from,
373 int length,
374 int transhdrlen,
375 int hlimit,
376 struct ipv6_txoptions *opt,
377 struct flowi *fl,
378 struct rt6_info *rt,
379 unsigned int flags);
380
381extern int ip6_push_pending_frames(struct sock *sk);
382
383extern void ip6_flush_pending_frames(struct sock *sk);
384
385extern int ip6_dst_lookup(struct sock *sk,
386 struct dst_entry **dst,
387 struct flowi *fl);
388
389/*
390 * skb processing functions
391 */
392
393extern int ip6_output(struct sk_buff *skb);
394extern int ip6_forward(struct sk_buff *skb);
395extern int ip6_input(struct sk_buff *skb);
396extern int ip6_mc_input(struct sk_buff *skb);
397
398/*
399 * Extension header (options) processing
400 */
401
402extern u8 * ipv6_build_nfrag_opts(struct sk_buff *skb,
403 u8 *prev_hdr,
404 struct ipv6_txoptions *opt,
405 struct in6_addr *daddr,
406 u32 jumbolen);
407extern u8 * ipv6_build_frag_opts(struct sk_buff *skb,
408 u8 *prev_hdr,
409 struct ipv6_txoptions *opt);
410extern void ipv6_push_nfrag_opts(struct sk_buff *skb,
411 struct ipv6_txoptions *opt,
412 u8 *proto,
413 struct in6_addr **daddr_p);
414extern void ipv6_push_frag_opts(struct sk_buff *skb,
415 struct ipv6_txoptions *opt,
416 u8 *proto);
417
418extern int ipv6_skip_exthdr(const struct sk_buff *, int start,
419 u8 *nexthdrp, int len);
420
421extern int ipv6_ext_hdr(u8 nexthdr);
422
423extern struct ipv6_txoptions * ipv6_invert_rthdr(struct sock *sk,
424 struct ipv6_rt_hdr *hdr);
425
426
427/*
428 * socket options (ipv6_sockglue.c)
429 */
430
431extern int ipv6_setsockopt(struct sock *sk, int level,
432 int optname,
433 char __user *optval,
434 int optlen);
435extern int ipv6_getsockopt(struct sock *sk, int level,
436 int optname,
437 char __user *optval,
438 int __user *optlen);
439
440extern void ipv6_packet_init(void);
441
442extern void ipv6_packet_cleanup(void);
443
444extern int ip6_datagram_connect(struct sock *sk,
445 struct sockaddr *addr, int addr_len);
446
447extern int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
448extern void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, u16 port,
449 u32 info, u8 *payload);
450extern void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info);
451
452extern int inet6_release(struct socket *sock);
453extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr,
454 int addr_len);
455extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
456 int *uaddr_len, int peer);
457extern int inet6_ioctl(struct socket *sock, unsigned int cmd,
458 unsigned long arg);
459
460/*
461 * reassembly.c
462 */
463extern int sysctl_ip6frag_high_thresh;
464extern int sysctl_ip6frag_low_thresh;
465extern int sysctl_ip6frag_time;
466extern int sysctl_ip6frag_secret_interval;
467
468#endif /* __KERNEL__ */
469#endif /* _NET_IPV6_H */
470
471
472
diff --git a/include/net/ipx.h b/include/net/ipx.h
new file mode 100644
index 000000000000..5c0cf33826c5
--- /dev/null
+++ b/include/net/ipx.h
@@ -0,0 +1,161 @@
1#ifndef _NET_INET_IPX_H_
2#define _NET_INET_IPX_H_
3/*
4 * The following information is in its entirety obtained from:
5 *
6 * Novell 'IPX Router Specification' Version 1.10
7 * Part No. 107-000029-001
8 *
9 * Which is available from ftp.novell.com
10 */
11
12#include <linux/netdevice.h>
13#include <net/datalink.h>
14#include <linux/ipx.h>
15#include <linux/list.h>
16
17struct ipx_address {
18 __u32 net;
19 __u8 node[IPX_NODE_LEN];
20 __u16 sock;
21};
22
23#define ipx_broadcast_node "\377\377\377\377\377\377"
24#define ipx_this_node "\0\0\0\0\0\0"
25
26#define IPX_MAX_PPROP_HOPS 8
27
28struct ipxhdr {
29 __u16 ipx_checksum __attribute__ ((packed));
30#define IPX_NO_CHECKSUM 0xFFFF
31 __u16 ipx_pktsize __attribute__ ((packed));
32 __u8 ipx_tctrl;
33 __u8 ipx_type;
34#define IPX_TYPE_UNKNOWN 0x00
35#define IPX_TYPE_RIP 0x01 /* may also be 0 */
36#define IPX_TYPE_SAP 0x04 /* may also be 0 */
37#define IPX_TYPE_SPX 0x05 /* SPX protocol */
38#define IPX_TYPE_NCP 0x11 /* $lots for docs on this (SPIT) */
39#define IPX_TYPE_PPROP 0x14 /* complicated flood fill brdcast */
40 struct ipx_address ipx_dest __attribute__ ((packed));
41 struct ipx_address ipx_source __attribute__ ((packed));
42};
43
44static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb)
45{
46 return (struct ipxhdr *)skb->h.raw;
47}
48
49struct ipx_interface {
50 /* IPX address */
51 __u32 if_netnum;
52 unsigned char if_node[IPX_NODE_LEN];
53 atomic_t refcnt;
54
55 /* physical device info */
56 struct net_device *if_dev;
57 struct datalink_proto *if_dlink;
58 unsigned short if_dlink_type;
59
60 /* socket support */
61 unsigned short if_sknum;
62 struct hlist_head if_sklist;
63 spinlock_t if_sklist_lock;
64
65 /* administrative overhead */
66 int if_ipx_offset;
67 unsigned char if_internal;
68 unsigned char if_primary;
69
70 struct list_head node; /* node in ipx_interfaces list */
71};
72
73struct ipx_route {
74 __u32 ir_net;
75 struct ipx_interface *ir_intrfc;
76 unsigned char ir_routed;
77 unsigned char ir_router_node[IPX_NODE_LEN];
78 struct list_head node; /* node in ipx_routes list */
79 atomic_t refcnt;
80};
81
82#ifdef __KERNEL__
83struct ipx_cb {
84 u8 ipx_tctrl;
85 u32 ipx_dest_net;
86 u32 ipx_source_net;
87 struct {
88 u32 netnum;
89 int index;
90 } last_hop;
91};
92
93#include <net/sock.h>
94
95struct ipx_sock {
96 /* struct sock has to be the first member of ipx_sock */
97 struct sock sk;
98 struct ipx_address dest_addr;
99 struct ipx_interface *intrfc;
100 unsigned short port;
101#ifdef CONFIG_IPX_INTERN
102 unsigned char node[IPX_NODE_LEN];
103#endif
104 unsigned short type;
105 /*
106 * To handle special ncp connection-handling sockets for mars_nwe,
107 * the connection number must be stored in the socket.
108 */
109 unsigned short ipx_ncp_conn;
110};
111
112static inline struct ipx_sock *ipx_sk(struct sock *sk)
113{
114 return (struct ipx_sock *)sk;
115}
116
117#define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0]))
118#endif
119
120#define IPX_MIN_EPHEMERAL_SOCKET 0x4000
121#define IPX_MAX_EPHEMERAL_SOCKET 0x7fff
122
123extern struct list_head ipx_routes;
124extern rwlock_t ipx_routes_lock;
125
126extern struct list_head ipx_interfaces;
127extern struct ipx_interface *ipx_interfaces_head(void);
128extern spinlock_t ipx_interfaces_lock;
129
130extern struct ipx_interface *ipx_primary_net;
131
132extern int ipx_proc_init(void);
133extern void ipx_proc_exit(void);
134
135extern const char *ipx_frame_name(unsigned short);
136extern const char *ipx_device_name(struct ipx_interface *intrfc);
137
138static __inline__ void ipxitf_hold(struct ipx_interface *intrfc)
139{
140 atomic_inc(&intrfc->refcnt);
141}
142
143extern void ipxitf_down(struct ipx_interface *intrfc);
144
145static __inline__ void ipxitf_put(struct ipx_interface *intrfc)
146{
147 if (atomic_dec_and_test(&intrfc->refcnt))
148 ipxitf_down(intrfc);
149}
150
151static __inline__ void ipxrtr_hold(struct ipx_route *rt)
152{
153 atomic_inc(&rt->refcnt);
154}
155
156static __inline__ void ipxrtr_put(struct ipx_route *rt)
157{
158 if (atomic_dec_and_test(&rt->refcnt))
159 kfree(rt);
160}
161#endif /* _NET_INET_IPX_H_ */
diff --git a/include/net/irda/af_irda.h b/include/net/irda/af_irda.h
new file mode 100644
index 000000000000..7a209f61c482
--- /dev/null
+++ b/include/net/irda/af_irda.h
@@ -0,0 +1,87 @@
1/*********************************************************************
2 *
3 * Filename: af_irda.h
4 * Version: 1.0
5 * Description: IrDA sockets declarations
6 * Status: Stable
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Dec 9 21:13:12 1997
9 * Modified at: Fri Jan 28 13:16:32 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
23 *
24 ********************************************************************/
25
26#ifndef AF_IRDA_H
27#define AF_IRDA_H
28
29#include <linux/irda.h>
30#include <net/irda/irda.h>
31#include <net/irda/iriap.h> /* struct iriap_cb */
32#include <net/irda/irias_object.h> /* struct ias_value */
33#include <net/irda/irlmp.h> /* struct lsap_cb */
34#include <net/irda/irttp.h> /* struct tsap_cb */
35#include <net/irda/discovery.h> /* struct discovery_t */
36#include <net/sock.h>
37
38/* IrDA Socket */
39struct irda_sock {
40 /* struct sock has to be the first member of irda_sock */
41 struct sock sk;
42 __u32 saddr; /* my local address */
43 __u32 daddr; /* peer address */
44
45 struct lsap_cb *lsap; /* LSAP used by Ultra */
46 __u8 pid; /* Protocol IP (PID) used by Ultra */
47
48 struct tsap_cb *tsap; /* TSAP used by this connection */
49 __u8 dtsap_sel; /* remote TSAP address */
50 __u8 stsap_sel; /* local TSAP address */
51
52 __u32 max_sdu_size_rx;
53 __u32 max_sdu_size_tx;
54 __u32 max_data_size;
55 __u8 max_header_size;
56 struct qos_info qos_tx;
57
58 __u16_host_order mask; /* Hint bits mask */
59 __u16_host_order hints; /* Hint bits */
60
61 void *ckey; /* IrLMP client handle */
62 void *skey; /* IrLMP service handle */
63
64 struct ias_object *ias_obj; /* Our service name + lsap in IAS */
65 struct iriap_cb *iriap; /* Used to query remote IAS */
66 struct ias_value *ias_result; /* Result of remote IAS query */
67
68 hashbin_t *cachelog; /* Result of discovery query */
69 __u32 cachedaddr; /* Result of selective discovery query */
70
71 int nslots; /* Number of slots to use for discovery */
72
73 int errno; /* status of the IAS query */
74
75 wait_queue_head_t query_wait; /* Wait for the answer to a query */
76 struct timer_list watchdog; /* Timeout for discovery */
77
78 LOCAL_FLOW tx_flow;
79 LOCAL_FLOW rx_flow;
80};
81
82static inline struct irda_sock *irda_sk(struct sock *sk)
83{
84 return (struct irda_sock *)sk;
85}
86
87#endif /* AF_IRDA_H */
diff --git a/include/net/irda/crc.h b/include/net/irda/crc.h
new file mode 100644
index 000000000000..f202296df9bb
--- /dev/null
+++ b/include/net/irda/crc.h
@@ -0,0 +1,29 @@
1/*********************************************************************
2 *
3 * Filename: crc.h
4 * Version:
5 * Description: CRC routines
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Aug 4 20:40:53 1997
9 * Modified at: Sun May 2 20:25:23 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 ********************************************************************/
13
14#ifndef IRDA_CRC_H
15#define IRDA_CRC_H
16
17#include <linux/types.h>
18#include <linux/crc-ccitt.h>
19
20#define INIT_FCS 0xffff /* Initial FCS value */
21#define GOOD_FCS 0xf0b8 /* Good final FCS value */
22
23/* Recompute the FCS with one more character appended. */
24#define irda_fcs(fcs, c) crc_ccitt_byte(fcs, c)
25
26/* Recompute the FCS with len bytes appended. */
27#define irda_calc_crc16(fcs, buf, len) crc_ccitt(fcs, buf, len)
28
29#endif
diff --git a/include/net/irda/discovery.h b/include/net/irda/discovery.h
new file mode 100644
index 000000000000..eb0f9de47294
--- /dev/null
+++ b/include/net/irda/discovery.h
@@ -0,0 +1,100 @@
1/*********************************************************************
2 *
3 * Filename: discovery.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Apr 6 16:53:53 1999
9 * Modified at: Tue Oct 5 10:05:10 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 * MA 02111-1307 USA
29 *
30 ********************************************************************/
31
32#ifndef DISCOVERY_H
33#define DISCOVERY_H
34
35#include <asm/param.h>
36
37#include <net/irda/irda.h>
38#include <net/irda/irqueue.h> /* irda_queue_t */
39#include <net/irda/irlap_event.h> /* LAP_REASON */
40
41#define DISCOVERY_EXPIRE_TIMEOUT (2*sysctl_discovery_timeout*HZ)
42#define DISCOVERY_DEFAULT_SLOTS 0
43
44/*
45 * This type is used by the protocols that transmit 16 bits words in
46 * little endian format. A little endian machine stores MSB of word in
47 * byte[1] and LSB in byte[0]. A big endian machine stores MSB in byte[0]
48 * and LSB in byte[1].
49 *
50 * This structure is used in the code for things that are endian neutral
51 * but that fit in a word so that we can manipulate them efficiently.
52 * By endian neutral, I mean things that are really an array of bytes,
53 * and always used as such, for example the hint bits. Jean II
54 */
55typedef union {
56 __u16 word;
57 __u8 byte[2];
58} __u16_host_order;
59
60/* Same purpose, different application */
61#define u16ho(array) (* ((__u16 *) array))
62
63/* Types of discovery */
64typedef enum {
65 DISCOVERY_LOG, /* What's in our discovery log */
66 DISCOVERY_ACTIVE, /* Doing our own discovery on the medium */
67 DISCOVERY_PASSIVE, /* Peer doing discovery on the medium */
68 EXPIRY_TIMEOUT, /* Entry expired due to timeout */
69} DISCOVERY_MODE;
70
71#define NICKNAME_MAX_LEN 21
72
73/* Basic discovery information about a peer */
74typedef struct irda_device_info discinfo_t; /* linux/irda.h */
75
76/*
77 * The DISCOVERY structure is used for both discovery requests and responses
78 */
79typedef struct discovery_t {
80 irda_queue_t q; /* Must be first! */
81
82 discinfo_t data; /* Basic discovery information */
83 int name_len; /* Lenght of nickname */
84
85 LAP_REASON condition; /* More info about the discovery */
86 int gen_addr_bit; /* Need to generate a new device
87 * address? */
88 int nslots; /* Number of slots to use when
89 * discovering */
90 unsigned long timestamp; /* Last time discovered */
91 unsigned long firststamp; /* First time discovered */
92} discovery_t;
93
94void irlmp_add_discovery(hashbin_t *cachelog, discovery_t *discovery);
95void irlmp_add_discovery_log(hashbin_t *cachelog, hashbin_t *log);
96void irlmp_expire_discoveries(hashbin_t *log, __u32 saddr, int force);
97struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn,
98 __u16 mask, int old_entries);
99
100#endif
diff --git a/include/net/irda/ircomm_core.h b/include/net/irda/ircomm_core.h
new file mode 100644
index 000000000000..69b610acd2df
--- /dev/null
+++ b/include/net/irda/ircomm_core.h
@@ -0,0 +1,108 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_core.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Wed Jun 9 08:58:43 1999
9 * Modified at: Mon Dec 13 11:52:29 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_CORE_H
32#define IRCOMM_CORE_H
33
34#include <net/irda/irda.h>
35#include <net/irda/irqueue.h>
36#include <net/irda/ircomm_event.h>
37
38#define IRCOMM_MAGIC 0x98347298
39#define IRCOMM_HEADER_SIZE 1
40
41struct ircomm_cb; /* Forward decl. */
42
43/*
44 * A small call-table, so we don't have to check the service-type whenever
45 * we want to do something
46 */
47typedef struct {
48 int (*data_request)(struct ircomm_cb *, struct sk_buff *, int clen);
49 int (*connect_request)(struct ircomm_cb *, struct sk_buff *,
50 struct ircomm_info *);
51 int (*connect_response)(struct ircomm_cb *, struct sk_buff *);
52 int (*disconnect_request)(struct ircomm_cb *, struct sk_buff *,
53 struct ircomm_info *);
54} call_t;
55
56struct ircomm_cb {
57 irda_queue_t queue;
58 magic_t magic;
59
60 notify_t notify;
61 call_t issue;
62
63 int state;
64 int line; /* Which TTY line we are using */
65
66 struct tsap_cb *tsap;
67 struct lsap_cb *lsap;
68
69 __u8 dlsap_sel; /* Destination LSAP/TSAP selector */
70 __u8 slsap_sel; /* Source LSAP/TSAP selector */
71
72 __u32 saddr; /* Source device address (link we are using) */
73 __u32 daddr; /* Destination device address */
74
75 int max_header_size; /* Header space we must reserve for each frame */
76 int max_data_size; /* The amount of data we can fill in each frame */
77
78 LOCAL_FLOW flow_status; /* Used by ircomm_lmp */
79 int pkt_count; /* Number of frames we have sent to IrLAP */
80
81 __u8 service_type;
82};
83
84extern hashbin_t *ircomm;
85
86struct ircomm_cb *ircomm_open(notify_t *notify, __u8 service_type, int line);
87int ircomm_close(struct ircomm_cb *self);
88
89int ircomm_data_request(struct ircomm_cb *self, struct sk_buff *skb);
90void ircomm_data_indication(struct ircomm_cb *self, struct sk_buff *skb);
91void ircomm_process_data(struct ircomm_cb *self, struct sk_buff *skb);
92int ircomm_control_request(struct ircomm_cb *self, struct sk_buff *skb);
93int ircomm_connect_request(struct ircomm_cb *self, __u8 dlsap_sel,
94 __u32 saddr, __u32 daddr, struct sk_buff *skb,
95 __u8 service_type);
96void ircomm_connect_indication(struct ircomm_cb *self, struct sk_buff *skb,
97 struct ircomm_info *info);
98void ircomm_connect_confirm(struct ircomm_cb *self, struct sk_buff *skb,
99 struct ircomm_info *info);
100int ircomm_connect_response(struct ircomm_cb *self, struct sk_buff *userdata);
101int ircomm_disconnect_request(struct ircomm_cb *self, struct sk_buff *userdata);
102void ircomm_disconnect_indication(struct ircomm_cb *self, struct sk_buff *skb,
103 struct ircomm_info *info);
104void ircomm_flow_request(struct ircomm_cb *self, LOCAL_FLOW flow);
105
106#define ircomm_is_connected(self) (self->state == IRCOMM_CONN)
107
108#endif
diff --git a/include/net/irda/ircomm_event.h b/include/net/irda/ircomm_event.h
new file mode 100644
index 000000000000..c290447872d1
--- /dev/null
+++ b/include/net/irda/ircomm_event.h
@@ -0,0 +1,85 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_event.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Jun 6 23:51:13 1999
9 * Modified at: Thu Jun 10 08:36:25 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_EVENT_H
32#define IRCOMM_EVENT_H
33
34#include <net/irda/irmod.h>
35
36typedef enum {
37 IRCOMM_IDLE,
38 IRCOMM_WAITI,
39 IRCOMM_WAITR,
40 IRCOMM_CONN,
41} IRCOMM_STATE;
42
43/* IrCOMM Events */
44typedef enum {
45 IRCOMM_CONNECT_REQUEST,
46 IRCOMM_CONNECT_RESPONSE,
47 IRCOMM_TTP_CONNECT_INDICATION,
48 IRCOMM_LMP_CONNECT_INDICATION,
49 IRCOMM_TTP_CONNECT_CONFIRM,
50 IRCOMM_LMP_CONNECT_CONFIRM,
51
52 IRCOMM_LMP_DISCONNECT_INDICATION,
53 IRCOMM_TTP_DISCONNECT_INDICATION,
54 IRCOMM_DISCONNECT_REQUEST,
55
56 IRCOMM_TTP_DATA_INDICATION,
57 IRCOMM_LMP_DATA_INDICATION,
58 IRCOMM_DATA_REQUEST,
59 IRCOMM_CONTROL_REQUEST,
60 IRCOMM_CONTROL_INDICATION,
61} IRCOMM_EVENT;
62
63/*
64 * Used for passing information through the state-machine
65 */
66struct ircomm_info {
67 __u32 saddr; /* Source device address */
68 __u32 daddr; /* Destination device address */
69 __u8 dlsap_sel;
70 LM_REASON reason; /* Reason for disconnect */
71 __u32 max_data_size;
72 __u32 max_header_size;
73
74 struct qos_info *qos;
75};
76
77extern char *ircomm_state[];
78
79struct ircomm_cb; /* Forward decl. */
80
81int ircomm_do_event(struct ircomm_cb *self, IRCOMM_EVENT event,
82 struct sk_buff *skb, struct ircomm_info *info);
83void ircomm_next_state(struct ircomm_cb *self, IRCOMM_STATE state);
84
85#endif
diff --git a/include/net/irda/ircomm_lmp.h b/include/net/irda/ircomm_lmp.h
new file mode 100644
index 000000000000..ae02106be590
--- /dev/null
+++ b/include/net/irda/ircomm_lmp.h
@@ -0,0 +1,38 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_lmp.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Wed Jun 9 10:06:07 1999
9 * Modified at: Fri Aug 13 07:32:32 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_LMP_H
32#define IRCOMM_LMP_H
33
34#include <net/irda/ircomm_core.h>
35
36int ircomm_open_lsap(struct ircomm_cb *self);
37
38#endif
diff --git a/include/net/irda/ircomm_param.h b/include/net/irda/ircomm_param.h
new file mode 100644
index 000000000000..e6678800c41f
--- /dev/null
+++ b/include/net/irda/ircomm_param.h
@@ -0,0 +1,149 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_param.h
4 * Version: 1.0
5 * Description: Parameter handling for the IrCOMM protocol
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Jun 7 08:47:28 1999
9 * Modified at: Wed Aug 25 13:46:33 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_PARAMS_H
32#define IRCOMM_PARAMS_H
33
34#include <net/irda/parameters.h>
35
36/* Parameters common to all service types */
37#define IRCOMM_SERVICE_TYPE 0x00
38#define IRCOMM_PORT_TYPE 0x01 /* Only used in LM-IAS */
39#define IRCOMM_PORT_NAME 0x02 /* Only used in LM-IAS */
40
41/* Parameters for both 3 wire and 9 wire */
42#define IRCOMM_DATA_RATE 0x10
43#define IRCOMM_DATA_FORMAT 0x11
44#define IRCOMM_FLOW_CONTROL 0x12
45#define IRCOMM_XON_XOFF 0x13
46#define IRCOMM_ENQ_ACK 0x14
47#define IRCOMM_LINE_STATUS 0x15
48#define IRCOMM_BREAK 0x16
49
50/* Parameters for 9 wire */
51#define IRCOMM_DTE 0x20
52#define IRCOMM_DCE 0x21
53#define IRCOMM_POLL 0x22
54
55/* Service type (details) */
56#define IRCOMM_3_WIRE_RAW 0x01
57#define IRCOMM_3_WIRE 0x02
58#define IRCOMM_9_WIRE 0x04
59#define IRCOMM_CENTRONICS 0x08
60
61/* Port type (details) */
62#define IRCOMM_SERIAL 0x00
63#define IRCOMM_PARALLEL 0x01
64
65/* Data format (details) */
66#define IRCOMM_WSIZE_5 0x00
67#define IRCOMM_WSIZE_6 0x01
68#define IRCOMM_WSIZE_7 0x02
69#define IRCOMM_WSIZE_8 0x03
70
71#define IRCOMM_1_STOP_BIT 0x00
72#define IRCOMM_2_STOP_BIT 0x04 /* 1.5 if char len 5 */
73
74#define IRCOMM_PARITY_DISABLE 0x00
75#define IRCOMM_PARITY_ENABLE 0x08
76
77#define IRCOMM_PARITY_ODD 0x00
78#define IRCOMM_PARITY_EVEN 0x10
79#define IRCOMM_PARITY_MARK 0x20
80#define IRCOMM_PARITY_SPACE 0x30
81
82/* Flow control */
83#define IRCOMM_XON_XOFF_IN 0x01
84#define IRCOMM_XON_XOFF_OUT 0x02
85#define IRCOMM_RTS_CTS_IN 0x04
86#define IRCOMM_RTS_CTS_OUT 0x08
87#define IRCOMM_DSR_DTR_IN 0x10
88#define IRCOMM_DSR_DTR_OUT 0x20
89#define IRCOMM_ENQ_ACK_IN 0x40
90#define IRCOMM_ENQ_ACK_OUT 0x80
91
92/* Line status */
93#define IRCOMM_OVERRUN_ERROR 0x02
94#define IRCOMM_PARITY_ERROR 0x04
95#define IRCOMM_FRAMING_ERROR 0x08
96
97/* DTE (Data terminal equipment) line settings */
98#define IRCOMM_DELTA_DTR 0x01
99#define IRCOMM_DELTA_RTS 0x02
100#define IRCOMM_DTR 0x04
101#define IRCOMM_RTS 0x08
102
103/* DCE (Data communications equipment) line settings */
104#define IRCOMM_DELTA_CTS 0x01 /* Clear to send has changed */
105#define IRCOMM_DELTA_DSR 0x02 /* Data set ready has changed */
106#define IRCOMM_DELTA_RI 0x04 /* Ring indicator has changed */
107#define IRCOMM_DELTA_CD 0x08 /* Carrier detect has changed */
108#define IRCOMM_CTS 0x10 /* Clear to send is high */
109#define IRCOMM_DSR 0x20 /* Data set ready is high */
110#define IRCOMM_RI 0x40 /* Ring indicator is high */
111#define IRCOMM_CD 0x80 /* Carrier detect is high */
112#define IRCOMM_DCE_DELTA_ANY 0x0f
113
114/*
115 * Parameter state
116 */
117struct ircomm_params {
118 /* General control params */
119 __u8 service_type;
120 __u8 port_type;
121 char port_name[32];
122
123 /* Control params for 3- and 9-wire service type */
124 __u32 data_rate; /* Data rate in bps */
125 __u8 data_format;
126 __u8 flow_control;
127 char xonxoff[2];
128 char enqack[2];
129 __u8 line_status;
130 __u8 _break;
131
132 __u8 null_modem;
133
134 /* Control params for 9-wire service type */
135 __u8 dte;
136 __u8 dce;
137 __u8 poll;
138
139 /* Control params for Centronics service type */
140};
141
142struct ircomm_tty_cb; /* Forward decl. */
143
144int ircomm_param_request(struct ircomm_tty_cb *self, __u8 pi, int flush);
145
146extern pi_param_info_t ircomm_param_info;
147
148#endif /* IRCOMM_PARAMS_H */
149
diff --git a/include/net/irda/ircomm_ttp.h b/include/net/irda/ircomm_ttp.h
new file mode 100644
index 000000000000..403081ed725c
--- /dev/null
+++ b/include/net/irda/ircomm_ttp.h
@@ -0,0 +1,39 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_ttp.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Wed Jun 9 10:06:07 1999
9 * Modified at: Fri Aug 13 07:32:22 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_TTP_H
32#define IRCOMM_TTP_H
33
34#include <net/irda/ircomm_core.h>
35
36int ircomm_open_tsap(struct ircomm_cb *self);
37
38#endif
39
diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
new file mode 100644
index 000000000000..87699cb4ef8c
--- /dev/null
+++ b/include/net/irda/ircomm_tty.h
@@ -0,0 +1,139 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_tty.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Jun 6 23:24:22 1999
9 * Modified at: Fri Jan 28 13:16:57 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_TTY_H
32#define IRCOMM_TTY_H
33
34#include <linux/serial.h>
35#include <linux/termios.h>
36#include <linux/timer.h>
37#include <linux/tty.h> /* struct tty_struct */
38
39#include <net/irda/irias_object.h>
40#include <net/irda/ircomm_core.h>
41#include <net/irda/ircomm_param.h>
42
43#define IRCOMM_TTY_PORTS 32
44#define IRCOMM_TTY_MAGIC 0x3432
45#define IRCOMM_TTY_MAJOR 161
46#define IRCOMM_TTY_MINOR 0
47
48/* This is used as an initial value to max_header_size before the proper
49 * value is filled in (5 for ttp, 4 for lmp). This allow us to detect
50 * the state of the underlying connection. - Jean II */
51#define IRCOMM_TTY_HDR_UNINITIALISED 16
52/* Same for payload size. See qos.c for the smallest max data size */
53#define IRCOMM_TTY_DATA_UNINITIALISED (64 - IRCOMM_TTY_HDR_UNINITIALISED)
54
55/* Those are really defined in include/linux/serial.h - Jean II */
56#define ASYNC_B_INITIALIZED 31 /* Serial port was initialized */
57#define ASYNC_B_NORMAL_ACTIVE 29 /* Normal device is active */
58#define ASYNC_B_CLOSING 27 /* Serial port is closing */
59
60/*
61 * IrCOMM TTY driver state
62 */
63struct ircomm_tty_cb {
64 irda_queue_t queue; /* Must be first */
65 magic_t magic;
66
67 int state; /* Connect state */
68
69 struct tty_struct *tty;
70 struct ircomm_cb *ircomm; /* IrCOMM layer instance */
71
72 struct sk_buff *tx_skb; /* Transmit buffer */
73 struct sk_buff *ctrl_skb; /* Control data buffer */
74
75 /* Parameters */
76 struct ircomm_params settings;
77
78 __u8 service_type; /* The service that we support */
79 int client; /* True if we are a client */
80 LOCAL_FLOW flow; /* IrTTP flow status */
81
82 int line;
83 unsigned long flags;
84
85 __u8 dlsap_sel;
86 __u8 slsap_sel;
87
88 __u32 saddr;
89 __u32 daddr;
90
91 __u32 max_data_size; /* Max data we can transmit in one packet */
92 __u32 max_header_size; /* The amount of header space we must reserve */
93 __u32 tx_data_size; /* Max data size of current tx_skb */
94
95 struct iriap_cb *iriap; /* Instance used for querying remote IAS */
96 struct ias_object* obj;
97 void *skey;
98 void *ckey;
99
100 wait_queue_head_t open_wait;
101 wait_queue_head_t close_wait;
102 struct timer_list watchdog_timer;
103 struct work_struct tqueue;
104
105 unsigned short close_delay;
106 unsigned short closing_wait; /* time to wait before closing */
107
108 int open_count;
109 int blocked_open; /* # of blocked opens */
110
111 /* Protect concurent access to :
112 * o self->open_count
113 * o self->ctrl_skb
114 * o self->tx_skb
115 * Maybe other things may gain to be protected as well...
116 * Jean II */
117 spinlock_t spinlock;
118};
119
120void ircomm_tty_start(struct tty_struct *tty);
121void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);
122
123extern int ircomm_tty_tiocmget(struct tty_struct *tty, struct file *file);
124extern int ircomm_tty_tiocmset(struct tty_struct *tty, struct file *file,
125 unsigned int set, unsigned int clear);
126extern int ircomm_tty_ioctl(struct tty_struct *tty, struct file *file,
127 unsigned int cmd, unsigned long arg);
128extern void ircomm_tty_set_termios(struct tty_struct *tty,
129 struct termios *old_termios);
130extern hashbin_t *ircomm_tty;
131
132#endif
133
134
135
136
137
138
139
diff --git a/include/net/irda/ircomm_tty_attach.h b/include/net/irda/ircomm_tty_attach.h
new file mode 100644
index 000000000000..f91a5695aa44
--- /dev/null
+++ b/include/net/irda/ircomm_tty_attach.h
@@ -0,0 +1,94 @@
1/*********************************************************************
2 *
3 * Filename: ircomm_tty_attach.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Wed Jun 9 15:55:18 1999
9 * Modified at: Fri Dec 10 21:04:55 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRCOMM_TTY_ATTACH_H
32#define IRCOMM_TTY_ATTACH_H
33
34#include <net/irda/ircomm_tty.h>
35
36typedef enum {
37 IRCOMM_TTY_IDLE,
38 IRCOMM_TTY_SEARCH,
39 IRCOMM_TTY_QUERY_PARAMETERS,
40 IRCOMM_TTY_QUERY_LSAP_SEL,
41 IRCOMM_TTY_SETUP,
42 IRCOMM_TTY_READY,
43} IRCOMM_TTY_STATE;
44
45/* IrCOMM TTY Events */
46typedef enum {
47 IRCOMM_TTY_ATTACH_CABLE,
48 IRCOMM_TTY_DETACH_CABLE,
49 IRCOMM_TTY_DATA_REQUEST,
50 IRCOMM_TTY_DATA_INDICATION,
51 IRCOMM_TTY_DISCOVERY_REQUEST,
52 IRCOMM_TTY_DISCOVERY_INDICATION,
53 IRCOMM_TTY_CONNECT_CONFIRM,
54 IRCOMM_TTY_CONNECT_INDICATION,
55 IRCOMM_TTY_DISCONNECT_REQUEST,
56 IRCOMM_TTY_DISCONNECT_INDICATION,
57 IRCOMM_TTY_WD_TIMER_EXPIRED,
58 IRCOMM_TTY_GOT_PARAMETERS,
59 IRCOMM_TTY_GOT_LSAPSEL,
60} IRCOMM_TTY_EVENT;
61
62/* Used for passing information through the state-machine */
63struct ircomm_tty_info {
64 __u32 saddr; /* Source device address */
65 __u32 daddr; /* Destination device address */
66 __u8 dlsap_sel;
67};
68
69extern char *ircomm_state[];
70extern char *ircomm_tty_state[];
71
72int ircomm_tty_do_event(struct ircomm_tty_cb *self, IRCOMM_TTY_EVENT event,
73 struct sk_buff *skb, struct ircomm_tty_info *info);
74
75
76int ircomm_tty_attach_cable(struct ircomm_tty_cb *self);
77void ircomm_tty_detach_cable(struct ircomm_tty_cb *self);
78void ircomm_tty_connect_confirm(void *instance, void *sap,
79 struct qos_info *qos,
80 __u32 max_sdu_size,
81 __u8 max_header_size,
82 struct sk_buff *skb);
83void ircomm_tty_disconnect_indication(void *instance, void *sap,
84 LM_REASON reason,
85 struct sk_buff *skb);
86void ircomm_tty_connect_indication(void *instance, void *sap,
87 struct qos_info *qos,
88 __u32 max_sdu_size,
89 __u8 max_header_size,
90 struct sk_buff *skb);
91int ircomm_tty_send_initial_parameters(struct ircomm_tty_cb *self);
92void ircomm_tty_link_established(struct ircomm_tty_cb *self);
93
94#endif /* IRCOMM_TTY_ATTACH_H */
diff --git a/include/net/irda/irda.h b/include/net/irda/irda.h
new file mode 100644
index 000000000000..05a840837fe7
--- /dev/null
+++ b/include/net/irda/irda.h
@@ -0,0 +1,117 @@
1/*********************************************************************
2 *
3 * Filename: irda.h
4 * Version: 1.0
5 * Description: IrDA common include file for kernel internal use
6 * Status: Stable
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Dec 9 21:13:12 1997
9 * Modified at: Fri Jan 28 13:16:32 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
23 *
24 ********************************************************************/
25
26#ifndef NET_IRDA_H
27#define NET_IRDA_H
28
29#include <linux/config.h>
30#include <linux/skbuff.h> /* struct sk_buff */
31#include <linux/kernel.h>
32#include <linux/if.h> /* sa_family_t in <linux/irda.h> */
33#include <linux/irda.h>
34
35typedef __u32 magic_t;
36
37#ifndef TRUE
38#define TRUE 1
39#endif
40
41#ifndef FALSE
42#define FALSE 0
43#endif
44
45/* Hack to do small backoff when setting media busy in IrLAP */
46#ifndef SMALL
47#define SMALL 5
48#endif
49
50#ifndef IRDA_MIN /* Lets not mix this MIN with other header files */
51#define IRDA_MIN(a, b) (((a) < (b)) ? (a) : (b))
52#endif
53
54#ifndef IRDA_ALIGN
55# define IRDA_ALIGN __attribute__((aligned))
56#endif
57#ifndef IRDA_PACK
58# define IRDA_PACK __attribute__((packed))
59#endif
60
61
62#ifdef CONFIG_IRDA_DEBUG
63
64extern unsigned int irda_debug;
65
66/* use 0 for production, 1 for verification, >2 for debug */
67#define IRDA_DEBUG_LEVEL 0
68
69#define IRDA_DEBUG(n, args...) \
70do { if (irda_debug >= (n)) \
71 printk(KERN_DEBUG args); \
72} while (0)
73#define IRDA_ASSERT(expr, func) \
74do { if(!(expr)) { \
75 printk( "Assertion failed! %s:%s:%d %s\n", \
76 __FILE__,__FUNCTION__,__LINE__,(#expr) ); \
77 func } } while (0)
78#define IRDA_ASSERT_LABEL(label) label
79#else
80#define IRDA_DEBUG(n, args...) do { } while (0)
81#define IRDA_ASSERT(expr, func) do { (void)(expr); } while (0)
82#define IRDA_ASSERT_LABEL(label)
83#endif /* CONFIG_IRDA_DEBUG */
84
85#define IRDA_WARNING(args...) printk(KERN_WARNING args)
86#define IRDA_MESSAGE(args...) printk(KERN_INFO args)
87#define IRDA_ERROR(args...) printk(KERN_ERR args)
88
89/*
90 * Magic numbers used by Linux-IrDA. Random numbers which must be unique to
91 * give the best protection
92 */
93
94#define IRTTY_MAGIC 0x2357
95#define LAP_MAGIC 0x1357
96#define LMP_MAGIC 0x4321
97#define LMP_LSAP_MAGIC 0x69333
98#define LMP_LAP_MAGIC 0x3432
99#define IRDA_DEVICE_MAGIC 0x63454
100#define IAS_MAGIC 0x007
101#define TTP_MAGIC 0x241169
102#define TTP_TSAP_MAGIC 0x4345
103#define IROBEX_MAGIC 0x341324
104#define HB_MAGIC 0x64534
105#define IRLAN_MAGIC 0x754
106#define IAS_OBJECT_MAGIC 0x34234
107#define IAS_ATTRIB_MAGIC 0x45232
108#define IRDA_TASK_MAGIC 0x38423
109
110#define IAS_DEVICE_ID 0x0000 /* Defined by IrDA, IrLMP section 4.1 (page 68) */
111#define IAS_PNP_ID 0xd342
112#define IAS_OBEX_ID 0x34323
113#define IAS_IRLAN_ID 0x34234
114#define IAS_IRCOMM_ID 0x2343
115#define IAS_IRLPT_ID 0x9876
116
117#endif /* NET_IRDA_H */
diff --git a/include/net/irda/irda_device.h b/include/net/irda/irda_device.h
new file mode 100644
index 000000000000..3b216f186f18
--- /dev/null
+++ b/include/net/irda/irda_device.h
@@ -0,0 +1,301 @@
1/*********************************************************************
2 *
3 * Filename: irda_device.h
4 * Version: 0.9
5 * Description: Contains various declarations used by the drivers
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Apr 14 12:41:42 1998
9 * Modified at: Mon Mar 20 09:08:57 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>,
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * MA 02111-1307 USA
30 *
31 ********************************************************************/
32
33/*
34 * This header contains all the IrDA definitions a driver really
35 * needs, and therefore the driver should not need to include
36 * any other IrDA headers - Jean II
37 */
38
39#ifndef IRDA_DEVICE_H
40#define IRDA_DEVICE_H
41
42#include <linux/config.h>
43#include <linux/tty.h>
44#include <linux/netdevice.h>
45#include <linux/spinlock.h>
46#include <linux/skbuff.h> /* struct sk_buff */
47#include <linux/irda.h>
48#include <linux/types.h>
49
50#include <net/pkt_sched.h>
51#include <net/irda/irda.h>
52#include <net/irda/qos.h> /* struct qos_info */
53#include <net/irda/irqueue.h> /* irda_queue_t */
54
55/* A few forward declarations (to make compiler happy) */
56struct irlap_cb;
57
58/* Some non-standard interface flags (should not conflict with any in if.h) */
59#define IFF_SIR 0x0001 /* Supports SIR speeds */
60#define IFF_MIR 0x0002 /* Supports MIR speeds */
61#define IFF_FIR 0x0004 /* Supports FIR speeds */
62#define IFF_VFIR 0x0008 /* Supports VFIR speeds */
63#define IFF_PIO 0x0010 /* Supports PIO transfer of data */
64#define IFF_DMA 0x0020 /* Supports DMA transfer of data */
65#define IFF_SHM 0x0040 /* Supports shared memory data transfers */
66#define IFF_DONGLE 0x0080 /* Interface has a dongle attached */
67#define IFF_AIR 0x0100 /* Supports Advanced IR (AIR) standards */
68
69#define IO_XMIT 0x01
70#define IO_RECV 0x02
71
72typedef enum {
73 IRDA_IRLAP, /* IrDA mode, and deliver to IrLAP */
74 IRDA_RAW, /* IrDA mode */
75 SHARP_ASK,
76 TV_REMOTE, /* Also known as Consumer Electronics IR */
77} INFRARED_MODE;
78
79typedef enum {
80 IRDA_TASK_INIT, /* All tasks are initialized with this state */
81 IRDA_TASK_DONE, /* Signals that the task is finished */
82 IRDA_TASK_WAIT,
83 IRDA_TASK_WAIT1,
84 IRDA_TASK_WAIT2,
85 IRDA_TASK_WAIT3,
86 IRDA_TASK_CHILD_INIT, /* Initializing child task */
87 IRDA_TASK_CHILD_WAIT, /* Waiting for child task to finish */
88 IRDA_TASK_CHILD_DONE /* Child task is finished */
89} IRDA_TASK_STATE;
90
91struct irda_task;
92typedef int (*IRDA_TASK_CALLBACK) (struct irda_task *task);
93
94struct irda_task {
95 irda_queue_t q;
96 magic_t magic;
97
98 IRDA_TASK_STATE state;
99 IRDA_TASK_CALLBACK function;
100 IRDA_TASK_CALLBACK finished;
101
102 struct irda_task *parent;
103 struct timer_list timer;
104
105 void *instance; /* Instance being called */
106 void *param; /* Parameter to be used by instance */
107};
108
109/* Dongle info */
110struct dongle_reg;
111typedef struct {
112 struct dongle_reg *issue; /* Registration info */
113 struct net_device *dev; /* Device we are attached to */
114 struct irda_task *speed_task; /* Task handling speed change */
115 struct irda_task *reset_task; /* Task handling reset */
116 __u32 speed; /* Current speed */
117
118 /* Callbacks to the IrDA device driver */
119 int (*set_mode)(struct net_device *, int mode);
120 int (*read)(struct net_device *dev, __u8 *buf, int len);
121 int (*write)(struct net_device *dev, __u8 *buf, int len);
122 int (*set_dtr_rts)(struct net_device *dev, int dtr, int rts);
123} dongle_t;
124
125/* Dongle registration info */
126struct dongle_reg {
127 irda_queue_t q; /* Must be first */
128 IRDA_DONGLE type;
129
130 void (*open)(dongle_t *dongle, struct qos_info *qos);
131 void (*close)(dongle_t *dongle);
132 int (*reset)(struct irda_task *task);
133 int (*change_speed)(struct irda_task *task);
134 struct module *owner;
135};
136
137/*
138 * Per-packet information we need to hide inside sk_buff
139 * (must not exceed 48 bytes, check with struct sk_buff)
140 */
141struct irda_skb_cb {
142 magic_t magic; /* Be sure that we can trust the information */
143 __u32 next_speed; /* The Speed to be set *after* this frame */
144 __u16 mtt; /* Minimum turn around time */
145 __u16 xbofs; /* Number of xbofs required, used by SIR mode */
146 __u16 next_xbofs; /* Number of xbofs required *after* this frame */
147 void *context; /* May be used by drivers */
148 void (*destructor)(struct sk_buff *skb); /* Used for flow control */
149 __u16 xbofs_delay; /* Number of xbofs used for generating the mtt */
150 __u8 line; /* Used by IrCOMM in IrLPT mode */
151};
152
153/* Chip specific info */
154typedef struct {
155 int cfg_base; /* Config register IO base */
156 int sir_base; /* SIR IO base */
157 int fir_base; /* FIR IO base */
158 int mem_base; /* Shared memory base */
159 int sir_ext; /* Length of SIR iobase */
160 int fir_ext; /* Length of FIR iobase */
161 int irq, irq2; /* Interrupts used */
162 int dma, dma2; /* DMA channel(s) used */
163 int fifo_size; /* FIFO size */
164 int irqflags; /* interrupt flags (ie, SA_SHIRQ|SA_INTERRUPT) */
165 int direction; /* Link direction, used by some FIR drivers */
166 int enabled; /* Powered on? */
167 int suspended; /* Suspended by APM */
168 __u32 speed; /* Currently used speed */
169 __u32 new_speed; /* Speed we must change to when Tx is finished */
170 int dongle_id; /* Dongle or transceiver currently used */
171} chipio_t;
172
173/* IO buffer specific info (inspired by struct sk_buff) */
174typedef struct {
175 int state; /* Receiving state (transmit state not used) */
176 int in_frame; /* True if receiving frame */
177
178 __u8 *head; /* start of buffer */
179 __u8 *data; /* start of data in buffer */
180
181 int len; /* current length of data */
182 int truesize; /* total allocated size of buffer */
183 __u16 fcs;
184
185 struct sk_buff *skb; /* ZeroCopy Rx in async_unwrap_char() */
186} iobuff_t;
187
188/* Maximum SIR frame (skb) that we expect to receive *unwrapped*.
189 * Max LAP MTU (I field) is 2048 bytes max (IrLAP 1.1, chapt 6.6.5, p40).
190 * Max LAP header is 2 bytes (for now).
191 * Max CRC is 2 bytes at SIR, 4 bytes at FIR.
192 * Need 1 byte for skb_reserve() to align IP header for IrLAN.
193 * Add a few extra bytes just to be safe (buffer is power of two anyway)
194 * Jean II */
195#define IRDA_SKB_MAX_MTU 2064
196/* Maximum SIR frame that we expect to send, wrapped (i.e. with XBOFS
197 * and escaped characters on top of above). */
198#define IRDA_SIR_MAX_FRAME 4269
199
200/* The SIR unwrapper async_unwrap_char() will use a Rx-copy-break mechanism
201 * when using the optional ZeroCopy Rx, where only small frames are memcpy
202 * to a smaller skb to save memory. This is the threshold under which copy
203 * will happen (and over which it won't happen).
204 * Some FIR drivers may use this #define as well...
205 * This is the same value as various Ethernet drivers. - Jean II */
206#define IRDA_RX_COPY_THRESHOLD 256
207
208/* Function prototypes */
209int irda_device_init(void);
210void irda_device_cleanup(void);
211
212/* IrLAP entry points used by the drivers.
213 * We declare them here to avoid the driver pulling a whole bunch stack
214 * headers they don't really need - Jean II */
215struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
216 const char *hw_name);
217void irlap_close(struct irlap_cb *self);
218
219/* Interface to be uses by IrLAP */
220void irda_device_set_media_busy(struct net_device *dev, int status);
221int irda_device_is_media_busy(struct net_device *dev);
222int irda_device_is_receiving(struct net_device *dev);
223
224/* Interface for internal use */
225static inline int irda_device_txqueue_empty(const struct net_device *dev)
226{
227 return (skb_queue_len(&dev->qdisc->q) == 0);
228}
229int irda_device_set_raw_mode(struct net_device* self, int status);
230struct net_device *alloc_irdadev(int sizeof_priv);
231
232/* Dongle interface */
233void irda_device_unregister_dongle(struct dongle_reg *dongle);
234int irda_device_register_dongle(struct dongle_reg *dongle);
235dongle_t *irda_device_dongle_init(struct net_device *dev, int type);
236int irda_device_dongle_cleanup(dongle_t *dongle);
237
238#ifdef CONFIG_ISA
239void irda_setup_dma(int channel, dma_addr_t buffer, int count, int mode);
240#endif
241
242void irda_task_delete(struct irda_task *task);
243struct irda_task *irda_task_execute(void *instance,
244 IRDA_TASK_CALLBACK function,
245 IRDA_TASK_CALLBACK finished,
246 struct irda_task *parent, void *param);
247void irda_task_next_state(struct irda_task *task, IRDA_TASK_STATE state);
248
249/*
250 * Function irda_get_mtt (skb)
251 *
252 * Utility function for getting the minimum turnaround time out of
253 * the skb, where it has been hidden in the cb field.
254 */
255static inline __u16 irda_get_mtt(const struct sk_buff *skb)
256{
257 const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
258 return (cb->magic == LAP_MAGIC) ? cb->mtt : 10000;
259}
260
261/*
262 * Function irda_get_next_speed (skb)
263 *
264 * Extract the speed that should be set *after* this frame from the skb
265 *
266 * Note : return -1 for user space frames
267 */
268static inline __u32 irda_get_next_speed(const struct sk_buff *skb)
269{
270 const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
271 return (cb->magic == LAP_MAGIC) ? cb->next_speed : -1;
272}
273
274/*
275 * Function irda_get_next_xbofs (skb)
276 *
277 * Extract the xbofs that should be set for this frame from the skb
278 *
279 * Note : default to 10 for user space frames
280 */
281static inline __u16 irda_get_xbofs(const struct sk_buff *skb)
282{
283 const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
284 return (cb->magic == LAP_MAGIC) ? cb->xbofs : 10;
285}
286
287/*
288 * Function irda_get_next_xbofs (skb)
289 *
290 * Extract the xbofs that should be set *after* this frame from the skb
291 *
292 * Note : return -1 for user space frames
293 */
294static inline __u16 irda_get_next_xbofs(const struct sk_buff *skb)
295{
296 const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
297 return (cb->magic == LAP_MAGIC) ? cb->next_xbofs : -1;
298}
299#endif /* IRDA_DEVICE_H */
300
301
diff --git a/include/net/irda/iriap.h b/include/net/irda/iriap.h
new file mode 100644
index 000000000000..2007c5a0a43f
--- /dev/null
+++ b/include/net/irda/iriap.h
@@ -0,0 +1,108 @@
1/*********************************************************************
2 *
3 * Filename: iriap.h
4 * Version: 0.5
5 * Description: Information Access Protocol (IAP)
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Thu Aug 21 00:02:07 1997
9 * Modified at: Sat Dec 25 16:42:09 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
23 *
24 ********************************************************************/
25
26#ifndef IRIAP_H
27#define IRIAP_H
28
29#include <linux/types.h>
30#include <linux/skbuff.h>
31
32#include <net/irda/iriap_event.h>
33#include <net/irda/irias_object.h>
34#include <net/irda/irqueue.h> /* irda_queue_t */
35#include <net/irda/timer.h> /* struct timer_list */
36
37#define IAP_LST 0x80
38#define IAP_ACK 0x40
39
40#define IAS_SERVER 0
41#define IAS_CLIENT 1
42
43/* IrIAP Op-codes */
44#define GET_INFO_BASE 0x01
45#define GET_OBJECTS 0x02
46#define GET_VALUE 0x03
47#define GET_VALUE_BY_CLASS 0x04
48#define GET_OBJECT_INFO 0x05
49#define GET_ATTRIB_NAMES 0x06
50
51#define IAS_SUCCESS 0
52#define IAS_CLASS_UNKNOWN 1
53#define IAS_ATTRIB_UNKNOWN 2
54#define IAS_DISCONNECT 10
55
56typedef void (*CONFIRM_CALLBACK)(int result, __u16 obj_id,
57 struct ias_value *value, void *priv);
58
59struct iriap_cb {
60 irda_queue_t q; /* Must be first */
61 magic_t magic; /* Magic cookie */
62
63 int mode; /* Client or server */
64
65 __u32 saddr;
66 __u32 daddr;
67 __u8 operation;
68
69 struct sk_buff *request_skb;
70 struct lsap_cb *lsap;
71 __u8 slsap_sel;
72
73 /* Client states */
74 IRIAP_STATE client_state;
75 IRIAP_STATE call_state;
76
77 /* Server states */
78 IRIAP_STATE server_state;
79 IRIAP_STATE r_connect_state;
80
81 CONFIRM_CALLBACK confirm;
82 void *priv; /* Used to identify client */
83
84 __u8 max_header_size;
85 __u32 max_data_size;
86
87 struct timer_list watchdog_timer;
88};
89
90int iriap_init(void);
91void iriap_cleanup(void);
92
93struct iriap_cb *iriap_open(__u8 slsap_sel, int mode, void *priv,
94 CONFIRM_CALLBACK callback);
95void iriap_close(struct iriap_cb *self);
96
97int iriap_getvaluebyclass_request(struct iriap_cb *self,
98 __u32 saddr, __u32 daddr,
99 char *name, char *attr);
100void iriap_connect_request(struct iriap_cb *self);
101void iriap_send_ack( struct iriap_cb *self);
102void iriap_call_indication(struct iriap_cb *self, struct sk_buff *skb);
103
104void iriap_register_server(void);
105
106#endif
107
108
diff --git a/include/net/irda/iriap_event.h b/include/net/irda/iriap_event.h
new file mode 100644
index 000000000000..4ca3d2071b03
--- /dev/null
+++ b/include/net/irda/iriap_event.h
@@ -0,0 +1,85 @@
1/*********************************************************************
2 *
3 * Filename: iriap_event.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Aug 4 20:40:53 1997
9 * Modified at: Sun Oct 31 22:02:54 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef IRIAP_FSM_H
26#define IRIAP_FSM_H
27
28/* Forward because of circular include dependecies */
29struct iriap_cb;
30
31/* IrIAP states */
32typedef enum {
33 /* Client */
34 S_DISCONNECT,
35 S_CONNECTING,
36 S_CALL,
37
38 /* S-Call */
39 S_MAKE_CALL,
40 S_CALLING,
41 S_OUTSTANDING,
42 S_REPLYING,
43 S_WAIT_FOR_CALL,
44 S_WAIT_ACTIVE,
45
46 /* Server */
47 R_DISCONNECT,
48 R_CALL,
49
50 /* R-Connect */
51 R_WAITING,
52 R_WAIT_ACTIVE,
53 R_RECEIVING,
54 R_EXECUTE,
55 R_RETURNING,
56} IRIAP_STATE;
57
58typedef enum {
59 IAP_CALL_REQUEST,
60 IAP_CALL_REQUEST_GVBC,
61 IAP_CALL_RESPONSE,
62 IAP_RECV_F_LST,
63 IAP_LM_DISCONNECT_INDICATION,
64 IAP_LM_CONNECT_INDICATION,
65 IAP_LM_CONNECT_CONFIRM,
66} IRIAP_EVENT;
67
68void iriap_next_client_state (struct iriap_cb *self, IRIAP_STATE state);
69void iriap_next_call_state (struct iriap_cb *self, IRIAP_STATE state);
70void iriap_next_server_state (struct iriap_cb *self, IRIAP_STATE state);
71void iriap_next_r_connect_state(struct iriap_cb *self, IRIAP_STATE state);
72
73
74void iriap_do_client_event(struct iriap_cb *self, IRIAP_EVENT event,
75 struct sk_buff *skb);
76void iriap_do_call_event (struct iriap_cb *self, IRIAP_EVENT event,
77 struct sk_buff *skb);
78
79void iriap_do_server_event (struct iriap_cb *self, IRIAP_EVENT event,
80 struct sk_buff *skb);
81void iriap_do_r_connect_event(struct iriap_cb *self, IRIAP_EVENT event,
82 struct sk_buff *skb);
83
84#endif /* IRIAP_FSM_H */
85
diff --git a/include/net/irda/irias_object.h b/include/net/irda/irias_object.h
new file mode 100644
index 000000000000..c41196b87955
--- /dev/null
+++ b/include/net/irda/irias_object.h
@@ -0,0 +1,108 @@
1/*********************************************************************
2 *
3 * Filename: irias_object.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Thu Oct 1 22:49:50 1998
9 * Modified at: Wed Dec 15 11:20:57 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef LM_IAS_OBJECT_H
26#define LM_IAS_OBJECT_H
27
28#include <net/irda/irda.h>
29#include <net/irda/irqueue.h>
30
31/* LM-IAS Attribute types */
32#define IAS_MISSING 0
33#define IAS_INTEGER 1
34#define IAS_OCT_SEQ 2
35#define IAS_STRING 3
36
37/* Object ownership of attributes (user or kernel) */
38#define IAS_KERNEL_ATTR 0
39#define IAS_USER_ATTR 1
40
41/*
42 * LM-IAS Object
43 */
44struct ias_object {
45 irda_queue_t q; /* Must be first! */
46 magic_t magic;
47
48 char *name;
49 int id;
50 hashbin_t *attribs;
51};
52
53/*
54 * Values used by LM-IAS attributes
55 */
56struct ias_value {
57 __u8 type; /* Value description */
58 __u8 owner; /* Managed from user/kernel space */
59 int charset; /* Only used by string type */
60 int len;
61
62 /* Value */
63 union {
64 int integer;
65 char *string;
66 __u8 *oct_seq;
67 } t;
68};
69
70/*
71 * Attributes used by LM-IAS objects
72 */
73struct ias_attrib {
74 irda_queue_t q; /* Must be first! */
75 int magic;
76
77 char *name; /* Attribute name */
78 struct ias_value *value; /* Attribute value */
79};
80
81struct ias_object *irias_new_object(char *name, int id);
82void irias_insert_object(struct ias_object *obj);
83int irias_delete_object(struct ias_object *obj);
84int irias_delete_attrib(struct ias_object *obj, struct ias_attrib *attrib,
85 int cleanobject);
86void __irias_delete_object(struct ias_object *obj);
87
88void irias_add_integer_attrib(struct ias_object *obj, char *name, int value,
89 int user);
90void irias_add_string_attrib(struct ias_object *obj, char *name, char *value,
91 int user);
92void irias_add_octseq_attrib(struct ias_object *obj, char *name, __u8 *octets,
93 int len, int user);
94int irias_object_change_attribute(char *obj_name, char *attrib_name,
95 struct ias_value *new_value);
96struct ias_object *irias_find_object(char *name);
97struct ias_attrib *irias_find_attrib(struct ias_object *obj, char *name);
98
99struct ias_value *irias_new_string_value(char *string);
100struct ias_value *irias_new_integer_value(int integer);
101struct ias_value *irias_new_octseq_value(__u8 *octseq , int len);
102struct ias_value *irias_new_missing_value(void);
103void irias_delete_value(struct ias_value *value);
104
105extern struct ias_value irias_missing;
106extern hashbin_t *irias_objects;
107
108#endif
diff --git a/include/net/irda/irlan_client.h b/include/net/irda/irlan_client.h
new file mode 100644
index 000000000000..736dabe211e3
--- /dev/null
+++ b/include/net/irda/irlan_client.h
@@ -0,0 +1,42 @@
1/*********************************************************************
2 *
3 * Filename: irlan_client.h
4 * Version: 0.3
5 * Description: IrDA LAN access layer
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Aug 31 20:14:37 1997
9 * Modified at: Thu Apr 22 14:13:34 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef IRLAN_CLIENT_H
26#define IRLAN_CLIENT_H
27
28#include <linux/kernel.h>
29#include <linux/types.h>
30#include <linux/skbuff.h>
31#include <linux/netdevice.h>
32
33#include <net/irda/irias_object.h>
34#include <net/irda/irlan_event.h>
35
36void irlan_client_discovery_indication(discinfo_t *, DISCOVERY_MODE, void *);
37void irlan_client_wakeup(struct irlan_cb *self, __u32 saddr, __u32 daddr);
38
39void irlan_client_parse_response(struct irlan_cb *self, struct sk_buff *skb);
40void irlan_client_get_value_confirm(int result, __u16 obj_id,
41 struct ias_value *value, void *priv);
42#endif
diff --git a/include/net/irda/irlan_common.h b/include/net/irda/irlan_common.h
new file mode 100644
index 000000000000..1c73bdbc3eb3
--- /dev/null
+++ b/include/net/irda/irlan_common.h
@@ -0,0 +1,222 @@
1/*********************************************************************
2 *
3 * Filename: irlan_common.h
4 * Version: 0.8
5 * Description: IrDA LAN access layer
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Aug 31 20:14:37 1997
9 * Modified at: Sun Oct 31 19:41:24 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
23 *
24 ********************************************************************/
25
26#ifndef IRLAN_H
27#define IRLAN_H
28
29#include <asm/param.h> /* for HZ */
30
31#include <linux/kernel.h>
32#include <linux/types.h>
33#include <linux/skbuff.h>
34#include <linux/netdevice.h>
35
36#include <net/irda/irttp.h>
37
38#define IRLAN_MTU 1518
39#define IRLAN_TIMEOUT 10*HZ /* 10 seconds */
40
41/* Command packet types */
42#define CMD_GET_PROVIDER_INFO 0
43#define CMD_GET_MEDIA_CHAR 1
44#define CMD_OPEN_DATA_CHANNEL 2
45#define CMD_CLOSE_DATA_CHAN 3
46#define CMD_RECONNECT_DATA_CHAN 4
47#define CMD_FILTER_OPERATION 5
48
49/* Some responses */
50#define RSP_SUCCESS 0
51#define RSP_INSUFFICIENT_RESOURCES 1
52#define RSP_INVALID_COMMAND_FORMAT 2
53#define RSP_COMMAND_NOT_SUPPORTED 3
54#define RSP_PARAM_NOT_SUPPORTED 4
55#define RSP_VALUE_NOT_SUPPORTED 5
56#define RSP_NOT_OPEN 6
57#define RSP_AUTHENTICATION_REQUIRED 7
58#define RSP_INVALID_PASSWORD 8
59#define RSP_PROTOCOL_ERROR 9
60#define RSP_ASYNCHRONOUS_ERROR 255
61
62/* Media types */
63#define MEDIA_802_3 1
64#define MEDIA_802_5 2
65
66/* Filter parameters */
67#define DATA_CHAN 1
68#define FILTER_TYPE 2
69#define FILTER_MODE 3
70
71/* Filter types */
72#define IRLAN_DIRECTED 0x01
73#define IRLAN_FUNCTIONAL 0x02
74#define IRLAN_GROUP 0x04
75#define IRLAN_MAC_FRAME 0x08
76#define IRLAN_MULTICAST 0x10
77#define IRLAN_BROADCAST 0x20
78#define IRLAN_IPX_SOCKET 0x40
79
80/* Filter modes */
81#define ALL 1
82#define FILTER 2
83#define NONE 3
84
85/* Filter operations */
86#define GET 1
87#define CLEAR 2
88#define ADD 3
89#define REMOVE 4
90#define DYNAMIC 5
91
92/* Access types */
93#define ACCESS_DIRECT 1
94#define ACCESS_PEER 2
95#define ACCESS_HOSTED 3
96
97#define IRLAN_BYTE 0
98#define IRLAN_SHORT 1
99#define IRLAN_ARRAY 2
100
101#define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER+LAP_MAX_HEADER)
102
103/*
104 * IrLAN client
105 */
106struct irlan_client_cb {
107 int state;
108
109 int open_retries;
110
111 struct tsap_cb *tsap_ctrl;
112 __u32 max_sdu_size;
113 __u8 max_header_size;
114
115 int access_type; /* Access type of provider */
116 __u8 reconnect_key[255];
117 __u8 key_len;
118
119 __u16 recv_arb_val;
120 __u16 max_frame;
121 int filter_type;
122
123 int unicast_open;
124 int broadcast_open;
125
126 int tx_busy;
127 struct sk_buff_head txq; /* Transmit control queue */
128
129 struct iriap_cb *iriap;
130
131 struct timer_list kick_timer;
132};
133
134/*
135 * IrLAN provider
136 */
137struct irlan_provider_cb {
138 int state;
139
140 struct tsap_cb *tsap_ctrl;
141 __u32 max_sdu_size;
142 __u8 max_header_size;
143
144 /*
145 * Store some values here which are used by the provider to parse
146 * the filter operations
147 */
148 int data_chan;
149 int filter_type;
150 int filter_mode;
151 int filter_operation;
152 int filter_entry;
153 int access_type; /* Access type */
154 __u16 send_arb_val;
155
156 __u8 mac_address[6]; /* Generated MAC address for peer device */
157};
158
159/*
160 * IrLAN control block
161 */
162struct irlan_cb {
163 int magic;
164 struct list_head dev_list;
165 struct net_device *dev; /* Ethernet device structure*/
166 struct net_device_stats stats;
167
168 __u32 saddr; /* Source device address */
169 __u32 daddr; /* Destination device address */
170 int disconnect_reason; /* Why we got disconnected */
171
172 int media; /* Media type */
173 __u8 version[2]; /* IrLAN version */
174
175 struct tsap_cb *tsap_data; /* Data TSAP */
176
177 int use_udata; /* Use Unit Data transfers */
178
179 __u8 stsap_sel_data; /* Source data TSAP selector */
180 __u8 dtsap_sel_data; /* Destination data TSAP selector */
181 __u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */
182
183 struct irlan_client_cb client; /* Client specific fields */
184 struct irlan_provider_cb provider; /* Provider specific fields */
185
186 __u32 max_sdu_size;
187 __u8 max_header_size;
188
189 wait_queue_head_t open_wait;
190 struct timer_list watchdog_timer;
191};
192
193void irlan_close(struct irlan_cb *self);
194void irlan_close_tsaps(struct irlan_cb *self);
195
196int irlan_register_netdev(struct irlan_cb *self);
197void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel);
198void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout);
199
200void irlan_open_data_tsap(struct irlan_cb *self);
201
202int irlan_run_ctrl_tx_queue(struct irlan_cb *self);
203
204struct irlan_cb *irlan_get_any(void);
205void irlan_get_provider_info(struct irlan_cb *self);
206void irlan_get_media_char(struct irlan_cb *self);
207void irlan_open_data_channel(struct irlan_cb *self);
208void irlan_close_data_channel(struct irlan_cb *self);
209void irlan_set_multicast_filter(struct irlan_cb *self, int status);
210void irlan_set_broadcast_filter(struct irlan_cb *self, int status);
211
212int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value);
213int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value);
214int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value);
215int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value,
216 __u16 value_len);
217
218int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len);
219
220#endif
221
222
diff --git a/include/net/irda/irlan_eth.h b/include/net/irda/irlan_eth.h
new file mode 100644
index 000000000000..9a9b3619d305
--- /dev/null
+++ b/include/net/irda/irlan_eth.h
@@ -0,0 +1,33 @@
1/*********************************************************************
2 *
3 * Filename: irlan_eth.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Thu Oct 15 08:36:58 1998
9 * Modified at: Fri May 14 23:29:00 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef IRLAN_ETH_H
26#define IRLAN_ETH_H
27
28struct net_device *alloc_irlandev(const char *name);
29int irlan_eth_receive(void *instance, void *sap, struct sk_buff *skb);
30
31void irlan_eth_flow_indication( void *instance, void *sap, LOCAL_FLOW flow);
32void irlan_eth_send_gratuitous_arp(struct net_device *dev);
33#endif
diff --git a/include/net/irda/irlan_event.h b/include/net/irda/irlan_event.h
new file mode 100644
index 000000000000..b9baac9eb8b6
--- /dev/null
+++ b/include/net/irda/irlan_event.h
@@ -0,0 +1,81 @@
1/*********************************************************************
2 *
3 * Filename: irlan_event.h
4 * Version:
5 * Description: LAN access
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Aug 31 20:14:37 1997
9 * Modified at: Tue Feb 2 09:45:17 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef IRLAN_EVENT_H
26#define IRLAN_EVENT_H
27
28#include <linux/kernel.h>
29#include <linux/skbuff.h>
30
31#include <net/irda/irlan_common.h>
32
33typedef enum {
34 IRLAN_IDLE,
35 IRLAN_QUERY,
36 IRLAN_CONN,
37 IRLAN_INFO,
38 IRLAN_MEDIA,
39 IRLAN_OPEN,
40 IRLAN_WAIT,
41 IRLAN_ARB,
42 IRLAN_DATA,
43 IRLAN_CLOSE,
44 IRLAN_SYNC
45} IRLAN_STATE;
46
47typedef enum {
48 IRLAN_DISCOVERY_INDICATION,
49 IRLAN_IAS_PROVIDER_AVAIL,
50 IRLAN_IAS_PROVIDER_NOT_AVAIL,
51 IRLAN_LAP_DISCONNECT,
52 IRLAN_LMP_DISCONNECT,
53 IRLAN_CONNECT_COMPLETE,
54 IRLAN_DATA_INDICATION,
55 IRLAN_DATA_CONNECT_INDICATION,
56 IRLAN_RETRY_CONNECT,
57
58 IRLAN_CONNECT_INDICATION,
59 IRLAN_GET_INFO_CMD,
60 IRLAN_GET_MEDIA_CMD,
61 IRLAN_OPEN_DATA_CMD,
62 IRLAN_FILTER_CONFIG_CMD,
63
64 IRLAN_CHECK_CON_ARB,
65 IRLAN_PROVIDER_SIGNAL,
66
67 IRLAN_WATCHDOG_TIMEOUT,
68} IRLAN_EVENT;
69
70extern char *irlan_state[];
71
72void irlan_do_client_event(struct irlan_cb *self, IRLAN_EVENT event,
73 struct sk_buff *skb);
74
75void irlan_do_provider_event(struct irlan_cb *self, IRLAN_EVENT event,
76 struct sk_buff *skb);
77
78void irlan_next_client_state(struct irlan_cb *self, IRLAN_STATE state);
79void irlan_next_provider_state(struct irlan_cb *self, IRLAN_STATE state);
80
81#endif
diff --git a/include/net/irda/irlan_filter.h b/include/net/irda/irlan_filter.h
new file mode 100644
index 000000000000..3afeb6c94ea4
--- /dev/null
+++ b/include/net/irda/irlan_filter.h
@@ -0,0 +1,33 @@
1/*********************************************************************
2 *
3 * Filename: irlan_filter.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Fri Jan 29 15:24:08 1999
9 * Modified at: Sun Feb 7 23:35:31 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef IRLAN_FILTER_H
26#define IRLAN_FILTER_H
27
28void irlan_check_command_param(struct irlan_cb *self, char *param,
29 char *value);
30void irlan_filter_request(struct irlan_cb *self, struct sk_buff *skb);
31int irlan_print_filter(struct seq_file *seq, int filter_type);
32
33#endif /* IRLAN_FILTER_H */
diff --git a/include/net/irda/irlan_provider.h b/include/net/irda/irlan_provider.h
new file mode 100644
index 000000000000..ca51d5b7c999
--- /dev/null
+++ b/include/net/irda/irlan_provider.h
@@ -0,0 +1,52 @@
1/*********************************************************************
2 *
3 * Filename: irlan_provider.h
4 * Version: 0.1
5 * Description: IrDA LAN access layer
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Aug 31 20:14:37 1997
9 * Modified at: Sun May 9 12:26:11 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * Neither Dag Brattli nor University of Tromsø admit liability nor
20 * provide warranty for any of this software. This material is
21 * provided "AS-IS" and at no charge.
22 *
23 ********************************************************************/
24
25#ifndef IRLAN_SERVER_H
26#define IRLAN_SERVER_H
27
28#include <linux/kernel.h>
29#include <linux/types.h>
30#include <linux/skbuff.h>
31#include <linux/netdevice.h>
32
33#include <net/irda/irlan_common.h>
34
35void irlan_provider_ctrl_disconnect_indication(void *instance, void *sap,
36 LM_REASON reason,
37 struct sk_buff *skb);
38
39
40void irlan_provider_connect_response(struct irlan_cb *, struct tsap_cb *);
41
42int irlan_parse_open_data_cmd(struct irlan_cb *self, struct sk_buff *skb);
43int irlan_provider_parse_command(struct irlan_cb *self, int cmd,
44 struct sk_buff *skb);
45
46void irlan_provider_send_reply(struct irlan_cb *self, int command,
47 int ret_code);
48int irlan_provider_open_ctrl_tsap(struct irlan_cb *self);
49
50#endif
51
52
diff --git a/include/net/irda/irlap.h b/include/net/irda/irlap.h
new file mode 100644
index 000000000000..f55e86e75030
--- /dev/null
+++ b/include/net/irda/irlap.h
@@ -0,0 +1,290 @@
1/*********************************************************************
2 *
3 * Filename: irlap.h
4 * Version: 0.8
5 * Description: An IrDA LAP driver for Linux
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Aug 4 20:40:53 1997
9 * Modified at: Fri Dec 10 13:21:17 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
24 *
25 ********************************************************************/
26
27#ifndef IRLAP_H
28#define IRLAP_H
29
30#include <linux/config.h>
31#include <linux/types.h>
32#include <linux/skbuff.h>
33#include <linux/netdevice.h>
34#include <linux/timer.h>
35
36#include <net/irda/irqueue.h> /* irda_queue_t */
37#include <net/irda/qos.h> /* struct qos_info */
38#include <net/irda/discovery.h> /* discovery_t */
39#include <net/irda/irlap_event.h> /* IRLAP_STATE, ... */
40#include <net/irda/irmod.h> /* struct notify_t */
41
42#define CONFIG_IRDA_DYNAMIC_WINDOW 1
43
44#define LAP_RELIABLE 1
45#define LAP_UNRELIABLE 0
46
47#define LAP_ADDR_HEADER 1 /* IrLAP Address Header */
48#define LAP_CTRL_HEADER 1 /* IrLAP Control Header */
49
50/* May be different when we get VFIR */
51#define LAP_MAX_HEADER (LAP_ADDR_HEADER + LAP_CTRL_HEADER)
52
53#define BROADCAST 0xffffffff /* Broadcast device address */
54#define CBROADCAST 0xfe /* Connection broadcast address */
55#define XID_FORMAT 0x01 /* Discovery XID format */
56
57/* Nobody seems to use this constant. */
58#define LAP_WINDOW_SIZE 8
59/* We keep the LAP queue very small to minimise the amount of buffering.
60 * this improve latency and reduce resource consumption.
61 * This work only because we have synchronous refilling of IrLAP through
62 * the flow control mechanism (via scheduler and IrTTP).
63 * 2 buffers is the minimum we can work with, one that we send while polling
64 * IrTTP, and another to know that we should not send the pf bit.
65 * Jean II */
66#define LAP_HIGH_THRESHOLD 2
67/* Some rare non TTP clients don't implement flow control, and
68 * so don't comply with the above limit (and neither with this one).
69 * For IAP and management, it doesn't matter, because they never transmit much.
70 *.For IrLPT, this should be fixed.
71 * - Jean II */
72#define LAP_MAX_QUEUE 10
73/* Please note that all IrDA management frames (LMP/TTP conn req/disc and
74 * IAS queries) fall in the second category and are sent to LAP even if TTP
75 * is stopped. This means that those frames will wait only a maximum of
76 * two (2) data frames before beeing sent on the "wire", which speed up
77 * new socket setup when the link is saturated.
78 * Same story for two sockets competing for the medium : if one saturates
79 * the LAP, when the other want to transmit it only has to wait for
80 * maximum three (3) packets (2 + one scheduling), which improve performance
81 * of delay sensitive applications.
82 * Jean II */
83
84#define NR_EXPECTED 1
85#define NR_UNEXPECTED 0
86#define NR_INVALID -1
87
88#define NS_EXPECTED 1
89#define NS_UNEXPECTED 0
90#define NS_INVALID -1
91
92/*
93 * Meta information passed within the IrLAP state machine
94 */
95struct irlap_info {
96 __u8 caddr; /* Connection address */
97 __u8 control; /* Frame type */
98 __u8 cmd;
99
100 __u32 saddr;
101 __u32 daddr;
102
103 int pf; /* Poll/final bit set */
104
105 __u8 nr; /* Sequence number of next frame expected */
106 __u8 ns; /* Sequence number of frame sent */
107
108 int S; /* Number of slots */
109 int slot; /* Random chosen slot */
110 int s; /* Current slot */
111
112 discovery_t *discovery; /* Discovery information */
113};
114
115/* Main structure of IrLAP */
116struct irlap_cb {
117 irda_queue_t q; /* Must be first */
118 magic_t magic;
119
120 /* Device we are attached to */
121 struct net_device *netdev;
122 char hw_name[2*IFNAMSIZ + 1];
123
124 /* Connection state */
125 volatile IRLAP_STATE state; /* Current state */
126
127 /* Timers used by IrLAP */
128 struct timer_list query_timer;
129 struct timer_list slot_timer;
130 struct timer_list discovery_timer;
131 struct timer_list final_timer;
132 struct timer_list poll_timer;
133 struct timer_list wd_timer;
134 struct timer_list backoff_timer;
135
136 /* Media busy stuff */
137 struct timer_list media_busy_timer;
138 int media_busy;
139
140 /* Timeouts which will be different with different turn time */
141 int slot_timeout;
142 int poll_timeout;
143 int final_timeout;
144 int wd_timeout;
145
146 struct sk_buff_head txq; /* Frames to be transmitted */
147 struct sk_buff_head txq_ultra;
148
149 __u8 caddr; /* Connection address */
150 __u32 saddr; /* Source device address */
151 __u32 daddr; /* Destination device address */
152
153 int retry_count; /* Times tried to establish connection */
154 int add_wait; /* True if we are waiting for frame */
155
156 __u8 connect_pending;
157 __u8 disconnect_pending;
158
159 /* To send a faster RR if tx queue empty */
160#ifdef CONFIG_IRDA_FAST_RR
161 int fast_RR_timeout;
162 int fast_RR;
163#endif /* CONFIG_IRDA_FAST_RR */
164
165 int N1; /* N1 * F-timer = Negitiated link disconnect warning threshold */
166 int N2; /* N2 * F-timer = Negitiated link disconnect time */
167 int N3; /* Connection retry count */
168
169 int local_busy;
170 int remote_busy;
171 int xmitflag;
172
173 __u8 vs; /* Next frame to be sent */
174 __u8 vr; /* Next frame to be received */
175 __u8 va; /* Last frame acked */
176 int window; /* Nr of I-frames allowed to send */
177 int window_size; /* Current negotiated window size */
178
179#ifdef CONFIG_IRDA_DYNAMIC_WINDOW
180 __u32 line_capacity; /* Number of bytes allowed to send */
181 __u32 bytes_left; /* Number of bytes still allowed to transmit */
182#endif /* CONFIG_IRDA_DYNAMIC_WINDOW */
183
184 struct sk_buff_head wx_list;
185
186 __u8 ack_required;
187
188 /* XID parameters */
189 __u8 S; /* Number of slots */
190 __u8 slot; /* Random chosen slot */
191 __u8 s; /* Current slot */
192 int frame_sent; /* Have we sent reply? */
193
194 hashbin_t *discovery_log;
195 discovery_t *discovery_cmd;
196
197 __u32 speed; /* Link speed */
198
199 struct qos_info qos_tx; /* QoS requested by peer */
200 struct qos_info qos_rx; /* QoS requested by self */
201 struct qos_info *qos_dev; /* QoS supported by device */
202
203 notify_t notify; /* Callbacks to IrLMP */
204
205 int mtt_required; /* Minumum turnaround time required */
206 int xbofs_delay; /* Nr of XBOF's used to MTT */
207 int bofs_count; /* Negotiated extra BOFs */
208 int next_bofs; /* Negotiated extra BOFs after next frame */
209};
210
211/*
212 * Function prototypes
213 */
214int irlap_init(void);
215void irlap_cleanup(void);
216
217struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
218 const char *hw_name);
219void irlap_close(struct irlap_cb *self);
220
221void irlap_connect_request(struct irlap_cb *self, __u32 daddr,
222 struct qos_info *qos, int sniff);
223void irlap_connect_response(struct irlap_cb *self, struct sk_buff *skb);
224void irlap_connect_indication(struct irlap_cb *self, struct sk_buff *skb);
225void irlap_connect_confirm(struct irlap_cb *, struct sk_buff *skb);
226
227void irlap_data_indication(struct irlap_cb *, struct sk_buff *, int unreliable);
228void irlap_data_request(struct irlap_cb *, struct sk_buff *, int unreliable);
229
230#ifdef CONFIG_IRDA_ULTRA
231void irlap_unitdata_request(struct irlap_cb *, struct sk_buff *);
232void irlap_unitdata_indication(struct irlap_cb *, struct sk_buff *);
233#endif /* CONFIG_IRDA_ULTRA */
234
235void irlap_disconnect_request(struct irlap_cb *);
236void irlap_disconnect_indication(struct irlap_cb *, LAP_REASON reason);
237
238void irlap_status_indication(struct irlap_cb *, int quality_of_link);
239
240void irlap_test_request(__u8 *info, int len);
241
242void irlap_discovery_request(struct irlap_cb *, discovery_t *discovery);
243void irlap_discovery_confirm(struct irlap_cb *, hashbin_t *discovery_log);
244void irlap_discovery_indication(struct irlap_cb *, discovery_t *discovery);
245
246void irlap_reset_indication(struct irlap_cb *self);
247void irlap_reset_confirm(void);
248
249void irlap_update_nr_received(struct irlap_cb *, int nr);
250int irlap_validate_nr_received(struct irlap_cb *, int nr);
251int irlap_validate_ns_received(struct irlap_cb *, int ns);
252
253int irlap_generate_rand_time_slot(int S, int s);
254void irlap_initiate_connection_state(struct irlap_cb *);
255void irlap_flush_all_queues(struct irlap_cb *);
256void irlap_wait_min_turn_around(struct irlap_cb *, struct qos_info *);
257
258void irlap_apply_default_connection_parameters(struct irlap_cb *self);
259void irlap_apply_connection_parameters(struct irlap_cb *self, int now);
260
261#define IRLAP_GET_HEADER_SIZE(self) (LAP_MAX_HEADER)
262#define IRLAP_GET_TX_QUEUE_LEN(self) skb_queue_len(&self->txq)
263
264/* Return TRUE if the node is in primary mode (i.e. master)
265 * - Jean II */
266static inline int irlap_is_primary(struct irlap_cb *self)
267{
268 int ret;
269 switch(self->state) {
270 case LAP_XMIT_P:
271 case LAP_NRM_P:
272 ret = 1;
273 break;
274 case LAP_XMIT_S:
275 case LAP_NRM_S:
276 ret = 0;
277 break;
278 default:
279 ret = -1;
280 }
281 return(ret);
282}
283
284/* Clear a pending IrLAP disconnect. - Jean II */
285static inline void irlap_clear_disconnect(struct irlap_cb *self)
286{
287 self->disconnect_pending = FALSE;
288}
289
290#endif
diff --git a/include/net/irda/irlap_event.h b/include/net/irda/irlap_event.h
new file mode 100644
index 000000000000..2ae2e119ef4b
--- /dev/null
+++ b/include/net/irda/irlap_event.h
@@ -0,0 +1,131 @@
1/*********************************************************************
2 *
3 *
4 * Filename: irlap_event.h
5 * Version: 0.1
6 * Description:
7 * Status: Experimental.
8 * Author: Dag Brattli <dagb@cs.uit.no>
9 * Created at: Sat Aug 16 00:59:29 1997
10 * Modified at: Tue Dec 21 11:20:30 1999
11 * Modified by: Dag Brattli <dagb@cs.uit.no>
12 *
13 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
14 * All Rights Reserved.
15 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 * MA 02111-1307 USA
31 *
32 ********************************************************************/
33
34#ifndef IRLAP_EVENT_H
35#define IRLAP_EVENT_H
36
37#include <net/irda/irda.h>
38
39/* A few forward declarations (to make compiler happy) */
40struct irlap_cb;
41struct irlap_info;
42
43/* IrLAP States */
44typedef enum {
45 LAP_NDM, /* Normal disconnected mode */
46 LAP_QUERY,
47 LAP_REPLY,
48 LAP_CONN, /* Connect indication */
49 LAP_SETUP, /* Setting up connection */
50 LAP_OFFLINE, /* A really boring state */
51 LAP_XMIT_P,
52 LAP_PCLOSE,
53 LAP_NRM_P, /* Normal response mode as primary */
54 LAP_RESET_WAIT,
55 LAP_RESET,
56 LAP_NRM_S, /* Normal response mode as secondary */
57 LAP_XMIT_S,
58 LAP_SCLOSE,
59 LAP_RESET_CHECK,
60} IRLAP_STATE;
61
62/* IrLAP Events */
63typedef enum {
64 /* Services events */
65 DISCOVERY_REQUEST,
66 CONNECT_REQUEST,
67 CONNECT_RESPONSE,
68 DISCONNECT_REQUEST,
69 DATA_REQUEST,
70 RESET_REQUEST,
71 RESET_RESPONSE,
72
73 /* Send events */
74 SEND_I_CMD,
75 SEND_UI_FRAME,
76
77 /* Receive events */
78 RECV_DISCOVERY_XID_CMD,
79 RECV_DISCOVERY_XID_RSP,
80 RECV_SNRM_CMD,
81 RECV_TEST_CMD,
82 RECV_TEST_RSP,
83 RECV_UA_RSP,
84 RECV_DM_RSP,
85 RECV_RD_RSP,
86 RECV_I_CMD,
87 RECV_I_RSP,
88 RECV_UI_FRAME,
89 RECV_FRMR_RSP,
90 RECV_RR_CMD,
91 RECV_RR_RSP,
92 RECV_RNR_CMD,
93 RECV_RNR_RSP,
94 RECV_REJ_CMD,
95 RECV_REJ_RSP,
96 RECV_SREJ_CMD,
97 RECV_SREJ_RSP,
98 RECV_DISC_CMD,
99
100 /* Timer events */
101 SLOT_TIMER_EXPIRED,
102 QUERY_TIMER_EXPIRED,
103 FINAL_TIMER_EXPIRED,
104 POLL_TIMER_EXPIRED,
105 DISCOVERY_TIMER_EXPIRED,
106 WD_TIMER_EXPIRED,
107 BACKOFF_TIMER_EXPIRED,
108 MEDIA_BUSY_TIMER_EXPIRED,
109} IRLAP_EVENT;
110
111/*
112 * Disconnect reason code
113 */
114typedef enum { /* FIXME check the two first reason codes */
115 LAP_DISC_INDICATION=1, /* Received a disconnect request from peer */
116 LAP_NO_RESPONSE, /* To many retransmits without response */
117 LAP_RESET_INDICATION, /* To many retransmits, or invalid nr/ns */
118 LAP_FOUND_NONE, /* No devices were discovered */
119 LAP_MEDIA_BUSY,
120 LAP_PRIMARY_CONFLICT,
121} LAP_REASON;
122
123extern const char *irlap_state[];
124
125void irlap_do_event(struct irlap_cb *self, IRLAP_EVENT event,
126 struct sk_buff *skb, struct irlap_info *info);
127void irlap_print_event(IRLAP_EVENT event);
128
129extern int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb);
130
131#endif
diff --git a/include/net/irda/irlap_frame.h b/include/net/irda/irlap_frame.h
new file mode 100644
index 000000000000..3452ae257c84
--- /dev/null
+++ b/include/net/irda/irlap_frame.h
@@ -0,0 +1,142 @@
1/*********************************************************************
2 *
3 * Filename: irlap_frame.h
4 * Version: 0.9
5 * Description: IrLAP frame declarations
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Aug 19 10:27:26 1997
9 * Modified at: Sat Dec 25 21:07:26 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * MA 02111-1307 USA
30 *
31 ********************************************************************/
32
33#ifndef IRLAP_FRAME_H
34#define IRLAP_FRAME_H
35
36#include <linux/skbuff.h>
37
38#include <net/irda/irda.h>
39
40/* A few forward declarations (to make compiler happy) */
41struct irlap_cb;
42struct discovery_t;
43
44/* Frame types and templates */
45#define INVALID 0xff
46
47/* Unnumbered (U) commands */
48#define SNRM_CMD 0x83 /* Set Normal Response Mode */
49#define DISC_CMD 0x43 /* Disconnect */
50#define XID_CMD 0x2f /* Exchange Station Identification */
51#define TEST_CMD 0xe3 /* Test */
52
53/* Unnumbered responses */
54#define RNRM_RSP 0x83 /* Request Normal Response Mode */
55#define UA_RSP 0x63 /* Unnumbered Acknowledgement */
56#define FRMR_RSP 0x87 /* Frame Reject */
57#define DM_RSP 0x0f /* Disconnect Mode */
58#define RD_RSP 0x43 /* Request Disconnection */
59#define XID_RSP 0xaf /* Exchange Station Identification */
60#define TEST_RSP 0xe3 /* Test frame */
61
62/* Supervisory (S) */
63#define RR 0x01 /* Receive Ready */
64#define REJ 0x09 /* Reject */
65#define RNR 0x05 /* Receive Not Ready */
66#define SREJ 0x0d /* Selective Reject */
67
68/* Information (I) */
69#define I_FRAME 0x00 /* Information Format */
70#define UI_FRAME 0x03 /* Unnumbered Information */
71
72#define CMD_FRAME 0x01
73#define RSP_FRAME 0x00
74
75#define PF_BIT 0x10 /* Poll/final bit */
76
77struct xid_frame {
78 __u8 caddr; /* Connection address */
79 __u8 control;
80 __u8 ident; /* Should always be XID_FORMAT */
81 __u32 saddr; /* Source device address */
82 __u32 daddr; /* Destination device address */
83 __u8 flags; /* Discovery flags */
84 __u8 slotnr;
85 __u8 version;
86} IRDA_PACK;
87
88struct test_frame {
89 __u8 caddr; /* Connection address */
90 __u8 control;
91 __u32 saddr; /* Source device address */
92 __u32 daddr; /* Destination device address */
93} IRDA_PACK;
94
95struct ua_frame {
96 __u8 caddr;
97 __u8 control;
98
99 __u32 saddr; /* Source device address */
100 __u32 daddr; /* Dest device address */
101} IRDA_PACK;
102
103struct i_frame {
104 __u8 caddr;
105 __u8 control;
106} IRDA_PACK;
107
108struct snrm_frame {
109 __u8 caddr;
110 __u8 control;
111 __u32 saddr;
112 __u32 daddr;
113 __u8 ncaddr;
114} IRDA_PACK;
115
116void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb);
117void irlap_send_discovery_xid_frame(struct irlap_cb *, int S, __u8 s,
118 __u8 command,
119 struct discovery_t *discovery);
120void irlap_send_snrm_frame(struct irlap_cb *, struct qos_info *);
121void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr,
122 struct sk_buff *cmd);
123void irlap_send_ua_response_frame(struct irlap_cb *, struct qos_info *);
124void irlap_send_dm_frame(struct irlap_cb *self);
125void irlap_send_rd_frame(struct irlap_cb *self);
126void irlap_send_disc_frame(struct irlap_cb *self);
127void irlap_send_rr_frame(struct irlap_cb *self, int command);
128
129void irlap_send_data_primary(struct irlap_cb *, struct sk_buff *);
130void irlap_send_data_primary_poll(struct irlap_cb *, struct sk_buff *);
131void irlap_send_data_secondary(struct irlap_cb *, struct sk_buff *);
132void irlap_send_data_secondary_final(struct irlap_cb *, struct sk_buff *);
133void irlap_resend_rejected_frames(struct irlap_cb *, int command);
134void irlap_resend_rejected_frame(struct irlap_cb *self, int command);
135
136void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb,
137 __u8 caddr, int command);
138
139extern int irlap_insert_qos_negotiation_params(struct irlap_cb *self,
140 struct sk_buff *skb);
141
142#endif
diff --git a/include/net/irda/irlmp.h b/include/net/irda/irlmp.h
new file mode 100644
index 000000000000..86aefb1fda5e
--- /dev/null
+++ b/include/net/irda/irlmp.h
@@ -0,0 +1,295 @@
1/*********************************************************************
2 *
3 * Filename: irlmp.h
4 * Version: 0.9
5 * Description: IrDA Link Management Protocol (LMP) layer
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Aug 17 20:54:32 1997
9 * Modified at: Fri Dec 10 13:23:01 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
24 *
25 ********************************************************************/
26
27#ifndef IRLMP_H
28#define IRLMP_H
29
30#include <asm/param.h> /* for HZ */
31
32#include <linux/config.h>
33#include <linux/types.h>
34
35#include <net/irda/irda.h>
36#include <net/irda/qos.h>
37#include <net/irda/irlap.h> /* LAP_MAX_HEADER, ... */
38#include <net/irda/irlmp_event.h>
39#include <net/irda/irqueue.h>
40#include <net/irda/discovery.h>
41
42/* LSAP-SEL's */
43#define LSAP_MASK 0x7f
44#define LSAP_IAS 0x00
45#define LSAP_ANY 0xff
46#define LSAP_MAX 0x6f /* 0x70-0x7f are reserved */
47#define LSAP_CONNLESS 0x70 /* Connectionless LSAP, mostly used for Ultra */
48
49#define DEV_ADDR_ANY 0xffffffff
50
51#define LMP_HEADER 2 /* Dest LSAP + Source LSAP */
52#define LMP_CONTROL_HEADER 4
53#define LMP_PID_HEADER 1 /* Used by Ultra */
54#define LMP_MAX_HEADER (LMP_CONTROL_HEADER+LAP_MAX_HEADER)
55
56#define LM_MAX_CONNECTIONS 10
57
58#define LM_IDLE_TIMEOUT 2*HZ /* 2 seconds for now */
59
60typedef enum {
61 S_PNP = 0,
62 S_PDA,
63 S_COMPUTER,
64 S_PRINTER,
65 S_MODEM,
66 S_FAX,
67 S_LAN,
68 S_TELEPHONY,
69 S_COMM,
70 S_OBEX,
71 S_ANY,
72 S_END,
73} SERVICE;
74
75/* For selective discovery */
76typedef void (*DISCOVERY_CALLBACK1) (discinfo_t *, DISCOVERY_MODE, void *);
77/* For expiry (the same) */
78typedef void (*DISCOVERY_CALLBACK2) (discinfo_t *, DISCOVERY_MODE, void *);
79
80typedef struct {
81 irda_queue_t queue; /* Must be first */
82
83 __u16_host_order hints; /* Hint bits */
84} irlmp_service_t;
85
86typedef struct {
87 irda_queue_t queue; /* Must be first */
88
89 __u16_host_order hint_mask;
90
91 DISCOVERY_CALLBACK1 disco_callback; /* Selective discovery */
92 DISCOVERY_CALLBACK2 expir_callback; /* Selective expiration */
93 void *priv; /* Used to identify client */
94} irlmp_client_t;
95
96/*
97 * Information about each logical LSAP connection
98 */
99struct lsap_cb {
100 irda_queue_t queue; /* Must be first */
101 magic_t magic;
102
103 unsigned long connected; /* set_bit used on this */
104 int persistent;
105
106 __u8 slsap_sel; /* Source (this) LSAP address */
107 __u8 dlsap_sel; /* Destination LSAP address (if connected) */
108#ifdef CONFIG_IRDA_ULTRA
109 __u8 pid; /* Used by connectionless LSAP */
110#endif /* CONFIG_IRDA_ULTRA */
111 struct sk_buff *conn_skb; /* Store skb here while connecting */
112
113 struct timer_list watchdog_timer;
114
115 IRLMP_STATE lsap_state; /* Connection state */
116 notify_t notify; /* Indication/Confirm entry points */
117 struct qos_info qos; /* QoS for this connection */
118
119 struct lap_cb *lap; /* Pointer to LAP connection structure */
120};
121
122/*
123 * Used for caching the last slsap->dlsap->handle mapping
124 *
125 * We don't need to keep/match the remote address in the cache because
126 * we are associated with a specific LAP (which implies it).
127 * Jean II
128 */
129typedef struct {
130 int valid;
131
132 __u8 slsap_sel;
133 __u8 dlsap_sel;
134 struct lsap_cb *lsap;
135} CACHE_ENTRY;
136
137/*
138 * Information about each registred IrLAP layer
139 */
140struct lap_cb {
141 irda_queue_t queue; /* Must be first */
142 magic_t magic;
143
144 int reason; /* LAP disconnect reason */
145
146 IRLMP_STATE lap_state;
147
148 struct irlap_cb *irlap; /* Instance of IrLAP layer */
149 hashbin_t *lsaps; /* LSAP associated with this link */
150 struct lsap_cb *flow_next; /* Next lsap to be polled for Tx */
151
152 __u8 caddr; /* Connection address */
153 __u32 saddr; /* Source device address */
154 __u32 daddr; /* Destination device address */
155
156 struct qos_info *qos; /* LAP QoS for this session */
157 struct timer_list idle_timer;
158
159#ifdef CONFIG_IRDA_CACHE_LAST_LSAP
160 /* The lsap cache was moved from struct irlmp_cb to here because
161 * it must be associated with the specific LAP. Also, this
162 * improves performance. - Jean II */
163 CACHE_ENTRY cache; /* Caching last slsap->dlsap->handle mapping */
164#endif
165};
166
167/*
168 * Main structure for IrLMP
169 */
170struct irlmp_cb {
171 magic_t magic;
172
173 __u8 conflict_flag;
174
175 discovery_t discovery_cmd; /* Discovery command to use by IrLAP */
176 discovery_t discovery_rsp; /* Discovery response to use by IrLAP */
177
178 /* Last lsap picked automatically by irlmp_find_free_slsap() */
179 int last_lsap_sel;
180
181 struct timer_list discovery_timer;
182
183 hashbin_t *links; /* IrLAP connection table */
184 hashbin_t *unconnected_lsaps;
185 hashbin_t *clients;
186 hashbin_t *services;
187
188 hashbin_t *cachelog; /* Current discovery log */
189
190 int running;
191
192 __u16_host_order hints; /* Hint bits */
193};
194
195/* Prototype declarations */
196int irlmp_init(void);
197void irlmp_cleanup(void);
198struct lsap_cb *irlmp_open_lsap(__u8 slsap, notify_t *notify, __u8 pid);
199void irlmp_close_lsap( struct lsap_cb *self);
200
201__u16 irlmp_service_to_hint(int service);
202void *irlmp_register_service(__u16 hints);
203int irlmp_unregister_service(void *handle);
204void *irlmp_register_client(__u16 hint_mask, DISCOVERY_CALLBACK1 disco_clb,
205 DISCOVERY_CALLBACK2 expir_clb, void *priv);
206int irlmp_unregister_client(void *handle);
207int irlmp_update_client(void *handle, __u16 hint_mask,
208 DISCOVERY_CALLBACK1 disco_clb,
209 DISCOVERY_CALLBACK2 expir_clb, void *priv);
210
211void irlmp_register_link(struct irlap_cb *, __u32 saddr, notify_t *);
212void irlmp_unregister_link(__u32 saddr);
213
214int irlmp_connect_request(struct lsap_cb *, __u8 dlsap_sel,
215 __u32 saddr, __u32 daddr,
216 struct qos_info *, struct sk_buff *);
217void irlmp_connect_indication(struct lsap_cb *self, struct sk_buff *skb);
218int irlmp_connect_response(struct lsap_cb *, struct sk_buff *);
219void irlmp_connect_confirm(struct lsap_cb *, struct sk_buff *);
220struct lsap_cb *irlmp_dup(struct lsap_cb *self, void *instance);
221
222void irlmp_disconnect_indication(struct lsap_cb *self, LM_REASON reason,
223 struct sk_buff *userdata);
224int irlmp_disconnect_request(struct lsap_cb *, struct sk_buff *userdata);
225
226void irlmp_discovery_confirm(hashbin_t *discovery_log, DISCOVERY_MODE mode);
227void irlmp_discovery_request(int nslots);
228discinfo_t *irlmp_get_discoveries(int *pn, __u16 mask, int nslots);
229void irlmp_do_expiry(void);
230void irlmp_do_discovery(int nslots);
231discovery_t *irlmp_get_discovery_response(void);
232void irlmp_discovery_expiry(discinfo_t *expiry, int number);
233
234int irlmp_data_request(struct lsap_cb *, struct sk_buff *);
235void irlmp_data_indication(struct lsap_cb *, struct sk_buff *);
236
237int irlmp_udata_request(struct lsap_cb *, struct sk_buff *);
238void irlmp_udata_indication(struct lsap_cb *, struct sk_buff *);
239
240#ifdef CONFIG_IRDA_ULTRA
241int irlmp_connless_data_request(struct lsap_cb *, struct sk_buff *, __u8);
242void irlmp_connless_data_indication(struct lsap_cb *, struct sk_buff *);
243#endif /* CONFIG_IRDA_ULTRA */
244
245void irlmp_status_indication(struct lap_cb *, LINK_STATUS link, LOCK_STATUS lock);
246void irlmp_flow_indication(struct lap_cb *self, LOCAL_FLOW flow);
247
248LM_REASON irlmp_convert_lap_reason(LAP_REASON);
249
250static inline __u32 irlmp_get_saddr(const struct lsap_cb *self)
251{
252 return (self && self->lap) ? self->lap->saddr : 0;
253}
254
255static inline __u32 irlmp_get_daddr(const struct lsap_cb *self)
256{
257 return (self && self->lap) ? self->lap->daddr : 0;
258}
259
260extern const char *irlmp_reasons[];
261extern int sysctl_discovery_timeout;
262extern int sysctl_discovery_slots;
263extern int sysctl_discovery;
264extern int sysctl_lap_keepalive_time; /* in ms, default is LM_IDLE_TIMEOUT */
265extern struct irlmp_cb *irlmp;
266
267/* Check if LAP queue is full.
268 * Used by IrTTP for low control, see comments in irlap.h - Jean II */
269static inline int irlmp_lap_tx_queue_full(struct lsap_cb *self)
270{
271 if (self == NULL)
272 return 0;
273 if (self->lap == NULL)
274 return 0;
275 if (self->lap->irlap == NULL)
276 return 0;
277
278 return(IRLAP_GET_TX_QUEUE_LEN(self->lap->irlap) >= LAP_HIGH_THRESHOLD);
279}
280
281/* After doing a irlmp_dup(), this get one of the two socket back into
282 * a state where it's waiting incomming connections.
283 * Note : this can be used *only* if the socket is not yet connected
284 * (i.e. NO irlmp_connect_response() done on this socket).
285 * - Jean II */
286static inline void irlmp_listen(struct lsap_cb *self)
287{
288 self->dlsap_sel = LSAP_ANY;
289 self->lap = NULL;
290 self->lsap_state = LSAP_DISCONNECTED;
291 /* Started when we received the LM_CONNECT_INDICATION */
292 del_timer(&self->watchdog_timer);
293}
294
295#endif
diff --git a/include/net/irda/irlmp_event.h b/include/net/irda/irlmp_event.h
new file mode 100644
index 000000000000..03c6f81a502a
--- /dev/null
+++ b/include/net/irda/irlmp_event.h
@@ -0,0 +1,98 @@
1/*********************************************************************
2 *
3 * Filename: irlmp_event.h
4 * Version: 0.1
5 * Description: IrDA-LMP event handling
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Aug 4 20:40:53 1997
9 * Modified at: Thu Jul 8 12:18:54 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997, 1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
24 *
25 ********************************************************************/
26
27#ifndef IRLMP_EVENT_H
28#define IRLMP_EVENT_H
29
30/* A few forward declarations (to make compiler happy) */
31struct irlmp_cb;
32struct lsap_cb;
33struct lap_cb;
34struct discovery_t;
35
36/* LAP states */
37typedef enum {
38 /* IrLAP connection control states */
39 LAP_STANDBY, /* No LAP connection */
40 LAP_U_CONNECT, /* Starting LAP connection */
41 LAP_ACTIVE, /* LAP connection is active */
42} IRLMP_STATE;
43
44/* LSAP connection control states */
45typedef enum {
46 LSAP_DISCONNECTED, /* No LSAP connection */
47 LSAP_CONNECT, /* Connect indication from peer */
48 LSAP_CONNECT_PEND, /* Connect request from service user */
49 LSAP_DATA_TRANSFER_READY, /* LSAP connection established */
50 LSAP_SETUP, /* Trying to set up LSAP connection */
51 LSAP_SETUP_PEND, /* Request to start LAP connection */
52} LSAP_STATE;
53
54typedef enum {
55 /* LSAP events */
56 LM_CONNECT_REQUEST,
57 LM_CONNECT_CONFIRM,
58 LM_CONNECT_RESPONSE,
59 LM_CONNECT_INDICATION,
60
61 LM_DISCONNECT_INDICATION,
62 LM_DISCONNECT_REQUEST,
63
64 LM_DATA_REQUEST,
65 LM_UDATA_REQUEST,
66 LM_DATA_INDICATION,
67 LM_UDATA_INDICATION,
68
69 LM_WATCHDOG_TIMEOUT,
70
71 /* IrLAP events */
72 LM_LAP_CONNECT_REQUEST,
73 LM_LAP_CONNECT_INDICATION,
74 LM_LAP_CONNECT_CONFIRM,
75 LM_LAP_DISCONNECT_INDICATION,
76 LM_LAP_DISCONNECT_REQUEST,
77 LM_LAP_DISCOVERY_REQUEST,
78 LM_LAP_DISCOVERY_CONFIRM,
79 LM_LAP_IDLE_TIMEOUT,
80} IRLMP_EVENT;
81
82extern const char *irlmp_state[];
83extern const char *irlsap_state[];
84
85void irlmp_watchdog_timer_expired(void *data);
86void irlmp_discovery_timer_expired(void *data);
87void irlmp_idle_timer_expired(void *data);
88
89void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event,
90 struct sk_buff *skb);
91int irlmp_do_lsap_event(struct lsap_cb *self, IRLMP_EVENT event,
92 struct sk_buff *skb);
93
94#endif /* IRLMP_EVENT_H */
95
96
97
98
diff --git a/include/net/irda/irlmp_frame.h b/include/net/irda/irlmp_frame.h
new file mode 100644
index 000000000000..eb3ad158c023
--- /dev/null
+++ b/include/net/irda/irlmp_frame.h
@@ -0,0 +1,63 @@
1/*********************************************************************
2 *
3 * Filename: irlmp_frame.h
4 * Version: 0.9
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Aug 19 02:09:59 1997
9 * Modified at: Fri Dec 10 13:21:53 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997, 1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
23 *
24 ********************************************************************/
25
26#ifndef IRMLP_FRAME_H
27#define IRMLP_FRAME_H
28
29#include <linux/config.h>
30#include <linux/skbuff.h>
31
32#include <net/irda/discovery.h>
33
34/* IrLMP frame opcodes */
35#define CONNECT_CMD 0x01
36#define CONNECT_CNF 0x81
37#define DISCONNECT 0x02
38#define ACCESSMODE_CMD 0x03
39#define ACCESSMODE_CNF 0x83
40
41#define CONTROL_BIT 0x80
42
43void irlmp_send_data_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap,
44 int expedited, struct sk_buff *skb);
45void irlmp_send_lcf_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap,
46 __u8 opcode, struct sk_buff *skb);
47void irlmp_link_data_indication(struct lap_cb *, struct sk_buff *,
48 int unreliable);
49#ifdef CONFIG_IRDA_ULTRA
50void irlmp_link_unitdata_indication(struct lap_cb *, struct sk_buff *);
51#endif /* CONFIG_IRDA_ULTRA */
52
53void irlmp_link_connect_indication(struct lap_cb *, __u32 saddr, __u32 daddr,
54 struct qos_info *qos, struct sk_buff *skb);
55void irlmp_link_connect_request(__u32 daddr);
56void irlmp_link_connect_confirm(struct lap_cb *self, struct qos_info *qos,
57 struct sk_buff *skb);
58void irlmp_link_disconnect_indication(struct lap_cb *, struct irlap_cb *,
59 LAP_REASON reason, struct sk_buff *);
60void irlmp_link_discovery_confirm(struct lap_cb *self, hashbin_t *log);
61void irlmp_link_discovery_indication(struct lap_cb *, discovery_t *discovery);
62
63#endif
diff --git a/include/net/irda/irmod.h b/include/net/irda/irmod.h
new file mode 100644
index 000000000000..72b446c1e22c
--- /dev/null
+++ b/include/net/irda/irmod.h
@@ -0,0 +1,109 @@
1/*********************************************************************
2 *
3 * Filename: irmod.h
4 * Version: 0.3
5 * Description: IrDA module and utilities functions
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Dec 15 13:58:52 1997
9 * Modified at: Fri Jan 28 13:15:24 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charg.
23 *
24 ********************************************************************/
25
26#ifndef IRMOD_H
27#define IRMOD_H
28
29/* Misc status information */
30typedef enum {
31 STATUS_OK,
32 STATUS_ABORTED,
33 STATUS_NO_ACTIVITY,
34 STATUS_NOISY,
35 STATUS_REMOTE,
36} LINK_STATUS;
37
38typedef enum {
39 LOCK_NO_CHANGE,
40 LOCK_LOCKED,
41 LOCK_UNLOCKED,
42} LOCK_STATUS;
43
44typedef enum { FLOW_STOP, FLOW_START } LOCAL_FLOW;
45
46/*
47 * IrLMP disconnect reasons. The order is very important, since they
48 * correspond to disconnect reasons sent in IrLMP disconnect frames, so
49 * please do not touch :-)
50 */
51typedef enum {
52 LM_USER_REQUEST = 1, /* User request */
53 LM_LAP_DISCONNECT, /* Unexpected IrLAP disconnect */
54 LM_CONNECT_FAILURE, /* Failed to establish IrLAP connection */
55 LM_LAP_RESET, /* IrLAP reset */
56 LM_INIT_DISCONNECT, /* Link Management initiated disconnect */
57 LM_LSAP_NOTCONN, /* Data delivered on unconnected LSAP */
58 LM_NON_RESP_CLIENT, /* Non responsive LM-MUX client */
59 LM_NO_AVAIL_CLIENT, /* No available LM-MUX client */
60 LM_CONN_HALF_OPEN, /* Connection is half open */
61 LM_BAD_SOURCE_ADDR, /* Illegal source address (i.e 0x00) */
62} LM_REASON;
63#define LM_UNKNOWN 0xff /* Unspecified disconnect reason */
64
65/* A few forward declarations (to make compiler happy) */
66struct qos_info; /* in <net/irda/qos.h> */
67
68/*
69 * Notify structure used between transport and link management layers
70 */
71typedef struct {
72 int (*data_indication)(void *priv, void *sap, struct sk_buff *skb);
73 int (*udata_indication)(void *priv, void *sap, struct sk_buff *skb);
74 void (*connect_confirm)(void *instance, void *sap,
75 struct qos_info *qos, __u32 max_sdu_size,
76 __u8 max_header_size, struct sk_buff *skb);
77 void (*connect_indication)(void *instance, void *sap,
78 struct qos_info *qos, __u32 max_sdu_size,
79 __u8 max_header_size, struct sk_buff *skb);
80 void (*disconnect_indication)(void *instance, void *sap,
81 LM_REASON reason, struct sk_buff *);
82 void (*flow_indication)(void *instance, void *sap, LOCAL_FLOW flow);
83 void (*status_indication)(void *instance,
84 LINK_STATUS link, LOCK_STATUS lock);
85 void *instance; /* Layer instance pointer */
86 char name[16]; /* Name of layer */
87} notify_t;
88
89#define NOTIFY_MAX_NAME 16
90
91/* Zero the notify structure */
92void irda_notify_init(notify_t *notify);
93
94/* Locking wrapper - Note the inverted logic on irda_lock().
95 * Those function basically return false if the lock is already in the
96 * position you want to set it. - Jean II */
97#define irda_lock(lock) (! test_and_set_bit(0, (void *) (lock)))
98#define irda_unlock(lock) (test_and_clear_bit(0, (void *) (lock)))
99
100#endif /* IRMOD_H */
101
102
103
104
105
106
107
108
109
diff --git a/include/net/irda/irqueue.h b/include/net/irda/irqueue.h
new file mode 100644
index 000000000000..335b0ace9665
--- /dev/null
+++ b/include/net/irda/irqueue.h
@@ -0,0 +1,96 @@
1/*********************************************************************
2 *
3 * Filename: irqueue.h
4 * Version: 0.3
5 * Description: General queue implementation
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Jun 9 13:26:50 1998
9 * Modified at: Thu Oct 7 13:25:16 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (C) 1998-1999, Aage Kvalnes <aage@cs.uit.no>
13 * Copyright (c) 1998, Dag Brattli
14 * All Rights Reserved.
15 *
16 * This code is taken from the Vortex Operating System written by Aage
17 * Kvalnes and has been ported to Linux and Linux/IR by Dag Brattli
18 *
19 * This program is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU General Public License as
21 * published by the Free Software Foundation; either version 2 of
22 * the License, or (at your option) any later version.
23 *
24 * Neither Dag Brattli nor University of Tromsø admit liability nor
25 * provide warranty for any of this software. This material is
26 * provided "AS-IS" and at no charge.
27 *
28 ********************************************************************/
29
30#include <linux/types.h>
31#include <linux/spinlock.h>
32
33#ifndef IRDA_QUEUE_H
34#define IRDA_QUEUE_H
35
36#define NAME_SIZE 32
37
38/*
39 * Hash types (some flags can be xored)
40 * See comments in irqueue.c for which one to use...
41 */
42#define HB_NOLOCK 0 /* No concurent access prevention */
43#define HB_LOCK 1 /* Prevent concurent write with global lock */
44
45/*
46 * Hash defines
47 */
48#define HASHBIN_SIZE 8
49#define HASHBIN_MASK 0x7
50
51#ifndef IRDA_ALIGN
52#define IRDA_ALIGN __attribute__((aligned))
53#endif
54
55#define Q_NULL { NULL, NULL, "", 0 }
56
57typedef void (*FREE_FUNC)(void *arg);
58
59struct irda_queue {
60 struct irda_queue *q_next;
61 struct irda_queue *q_prev;
62
63 char q_name[NAME_SIZE];
64 long q_hash; /* Must be able to cast a (void *) */
65};
66typedef struct irda_queue irda_queue_t;
67
68typedef struct hashbin_t {
69 __u32 magic;
70 int hb_type;
71 int hb_size;
72 spinlock_t hb_spinlock; /* HB_LOCK - Can be used by the user */
73
74 irda_queue_t* hb_queue[HASHBIN_SIZE] IRDA_ALIGN;
75
76 irda_queue_t* hb_current;
77} hashbin_t;
78
79hashbin_t *hashbin_new(int type);
80int hashbin_delete(hashbin_t* hashbin, FREE_FUNC func);
81int hashbin_clear(hashbin_t* hashbin, FREE_FUNC free_func);
82void hashbin_insert(hashbin_t* hashbin, irda_queue_t* entry, long hashv,
83 const char* name);
84void* hashbin_remove(hashbin_t* hashbin, long hashv, const char* name);
85void* hashbin_remove_first(hashbin_t *hashbin);
86void* hashbin_remove_this( hashbin_t* hashbin, irda_queue_t* entry);
87void* hashbin_find(hashbin_t* hashbin, long hashv, const char* name);
88void* hashbin_lock_find(hashbin_t* hashbin, long hashv, const char* name);
89void* hashbin_find_next(hashbin_t* hashbin, long hashv, const char* name,
90 void ** pnext);
91irda_queue_t *hashbin_get_first(hashbin_t *hashbin);
92irda_queue_t *hashbin_get_next(hashbin_t *hashbin);
93
94#define HASHBIN_GET_SIZE(hashbin) hashbin->hb_size
95
96#endif
diff --git a/include/net/irda/irttp.h b/include/net/irda/irttp.h
new file mode 100644
index 000000000000..a899e5837be8
--- /dev/null
+++ b/include/net/irda/irttp.h
@@ -0,0 +1,210 @@
1/*********************************************************************
2 *
3 * Filename: irttp.h
4 * Version: 1.0
5 * Description: Tiny Transport Protocol (TTP) definitions
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun Aug 31 20:14:31 1997
9 * Modified at: Sun Dec 12 13:09:07 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
24 *
25 ********************************************************************/
26
27#ifndef IRTTP_H
28#define IRTTP_H
29
30#include <linux/types.h>
31#include <linux/skbuff.h>
32#include <linux/spinlock.h>
33
34#include <net/irda/irda.h>
35#include <net/irda/irlmp.h> /* struct lsap_cb */
36#include <net/irda/qos.h> /* struct qos_info */
37#include <net/irda/irqueue.h>
38
39#define TTP_MAX_CONNECTIONS LM_MAX_CONNECTIONS
40#define TTP_HEADER 1
41#define TTP_MAX_HEADER (TTP_HEADER + LMP_MAX_HEADER)
42#define TTP_SAR_HEADER 5
43#define TTP_PARAMETERS 0x80
44#define TTP_MORE 0x80
45
46/* Transmission queue sizes */
47/* Worst case scenario, two window of data - Jean II */
48#define TTP_TX_MAX_QUEUE 14
49/* We need to keep at least 5 frames to make sure that we can refill
50 * appropriately the LAP layer. LAP keeps only two buffers, and we need
51 * to have 7 to make a full window - Jean II */
52#define TTP_TX_LOW_THRESHOLD 5
53/* Most clients are synchronous with respect to flow control, so we can
54 * keep a low number of Tx buffers in TTP - Jean II */
55#define TTP_TX_HIGH_THRESHOLD 7
56
57/* Receive queue sizes */
58/* Minimum of credit that the peer should hold.
59 * If the peer has less credits than 9 frames, we will explicitely send
60 * him some credits (through irttp_give_credit() and a specific frame).
61 * Note that when we give credits it's likely that it won't be sent in
62 * this LAP window, but in the next one. So, we make sure that the peer
63 * has something to send while waiting for credits (one LAP window == 7
64 * + 1 frames while he process the credits). - Jean II */
65#define TTP_RX_MIN_CREDIT 8
66/* This is the default maximum number of credits held by the peer, so the
67 * default maximum number of frames he can send us before needing flow
68 * control answer from us (this may be negociated differently at TSAP setup).
69 * We want to minimise the number of times we have to explicitely send some
70 * credit to the peer, hoping we can piggyback it on the return data. In
71 * particular, it doesn't make sense for us to send credit more than once
72 * per LAP window.
73 * Moreover, giving credits has some latency, so we need strictly more than
74 * a LAP window, otherwise we may already have credits in our Tx queue.
75 * But on the other hand, we don't want to keep too many Rx buffer here
76 * before starting to flow control the other end, so make it exactly one
77 * LAP window + 1 + MIN_CREDITS. - Jean II */
78#define TTP_RX_DEFAULT_CREDIT 16
79/* Maximum number of credits we can allow the peer to have, and therefore
80 * maximum Rx queue size.
81 * Note that we try to deliver packets to the higher layer every time we
82 * receive something, so in normal mode the Rx queue will never contains
83 * more than one or two packets. - Jean II */
84#define TTP_RX_MAX_CREDIT 21
85
86/* What clients should use when calling ttp_open_tsap() */
87#define DEFAULT_INITIAL_CREDIT TTP_RX_DEFAULT_CREDIT
88
89/* Some priorities for disconnect requests */
90#define P_NORMAL 0
91#define P_HIGH 1
92
93#define TTP_SAR_DISABLE 0
94#define TTP_SAR_UNBOUND 0xffffffff
95
96/* Parameters */
97#define TTP_MAX_SDU_SIZE 0x01
98
99/*
100 * This structure contains all data assosiated with one instance of a TTP
101 * connection.
102 */
103struct tsap_cb {
104 irda_queue_t q; /* Must be first */
105 magic_t magic; /* Just in case */
106
107 __u8 stsap_sel; /* Source TSAP */
108 __u8 dtsap_sel; /* Destination TSAP */
109
110 struct lsap_cb *lsap; /* Corresponding LSAP to this TSAP */
111
112 __u8 connected; /* TSAP connected */
113
114 __u8 initial_credit; /* Initial credit to give peer */
115
116 int avail_credit; /* Available credit to return to peer */
117 int remote_credit; /* Credit held by peer TTP entity */
118 int send_credit; /* Credit held by local TTP entity */
119
120 struct sk_buff_head tx_queue; /* Frames to be transmitted */
121 struct sk_buff_head rx_queue; /* Received frames */
122 struct sk_buff_head rx_fragments;
123 int tx_queue_lock;
124 int rx_queue_lock;
125 spinlock_t lock;
126
127 notify_t notify; /* Callbacks to client layer */
128
129 struct net_device_stats stats;
130 struct timer_list todo_timer;
131
132 __u32 max_seg_size; /* Max data that fit into an IrLAP frame */
133 __u8 max_header_size;
134
135 int rx_sdu_busy; /* RxSdu.busy */
136 __u32 rx_sdu_size; /* Current size of a partially received frame */
137 __u32 rx_max_sdu_size; /* Max receive user data size */
138
139 int tx_sdu_busy; /* TxSdu.busy */
140 __u32 tx_max_sdu_size; /* Max transmit user data size */
141
142 int close_pend; /* Close, but disconnect_pend */
143 unsigned long disconnect_pend; /* Disconnect, but still data to send */
144 struct sk_buff *disconnect_skb;
145};
146
147struct irttp_cb {
148 magic_t magic;
149 hashbin_t *tsaps;
150};
151
152int irttp_init(void);
153void irttp_cleanup(void);
154
155struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify);
156int irttp_close_tsap(struct tsap_cb *self);
157
158int irttp_data_request(struct tsap_cb *self, struct sk_buff *skb);
159int irttp_udata_request(struct tsap_cb *self, struct sk_buff *skb);
160
161int irttp_connect_request(struct tsap_cb *self, __u8 dtsap_sel,
162 __u32 saddr, __u32 daddr,
163 struct qos_info *qos, __u32 max_sdu_size,
164 struct sk_buff *userdata);
165int irttp_connect_response(struct tsap_cb *self, __u32 max_sdu_size,
166 struct sk_buff *userdata);
167int irttp_disconnect_request(struct tsap_cb *self, struct sk_buff *skb,
168 int priority);
169void irttp_flow_request(struct tsap_cb *self, LOCAL_FLOW flow);
170struct tsap_cb *irttp_dup(struct tsap_cb *self, void *instance);
171
172static __inline __u32 irttp_get_saddr(struct tsap_cb *self)
173{
174 return irlmp_get_saddr(self->lsap);
175}
176
177static __inline __u32 irttp_get_daddr(struct tsap_cb *self)
178{
179 return irlmp_get_daddr(self->lsap);
180}
181
182static __inline __u32 irttp_get_max_seg_size(struct tsap_cb *self)
183{
184 return self->max_seg_size;
185}
186
187/* After doing a irttp_dup(), this get one of the two socket back into
188 * a state where it's waiting incomming connections.
189 * Note : this can be used *only* if the socket is not yet connected
190 * (i.e. NO irttp_connect_response() done on this socket).
191 * - Jean II */
192static inline void irttp_listen(struct tsap_cb *self)
193{
194 irlmp_listen(self->lsap);
195 self->dtsap_sel = LSAP_ANY;
196}
197
198/* Return TRUE if the node is in primary mode (i.e. master)
199 * - Jean II */
200static inline int irttp_is_primary(struct tsap_cb *self)
201{
202 if ((self == NULL) ||
203 (self->lsap == NULL) ||
204 (self->lsap->lap == NULL) ||
205 (self->lsap->lap->irlap == NULL))
206 return -2;
207 return(irlap_is_primary(self->lsap->lap->irlap));
208}
209
210#endif /* IRTTP_H */
diff --git a/include/net/irda/parameters.h b/include/net/irda/parameters.h
new file mode 100644
index 000000000000..3a605d37ddbf
--- /dev/null
+++ b/include/net/irda/parameters.h
@@ -0,0 +1,102 @@
1/*********************************************************************
2 *
3 * Filename: parameters.h
4 * Version: 1.0
5 * Description: A more general way to handle (pi,pl,pv) parameters
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Jun 7 08:47:28 1999
9 * Modified at: Sun Jan 30 14:05:14 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 * Michel Dänzer <daenzer@debian.org>, 10/2001
30 * - simplify irda_pv_t to avoid endianness issues
31 *
32 ********************************************************************/
33
34#ifndef IRDA_PARAMS_H
35#define IRDA_PARAMS_H
36
37/*
38 * The currently supported types. Beware not to change the sequence since
39 * it a good reason why the sized integers has a value equal to their size
40 */
41typedef enum {
42 PV_INTEGER, /* Integer of any (pl) length */
43 PV_INT_8_BITS, /* Integer of 8 bits in length */
44 PV_INT_16_BITS, /* Integer of 16 bits in length */
45 PV_STRING, /* \0 terminated string */
46 PV_INT_32_BITS, /* Integer of 32 bits in length */
47 PV_OCT_SEQ, /* Octet sequence */
48 PV_NO_VALUE /* Does not contain any value (pl=0) */
49} PV_TYPE;
50
51/* Bit 7 of type field */
52#define PV_BIG_ENDIAN 0x80
53#define PV_LITTLE_ENDIAN 0x00
54#define PV_MASK 0x7f /* To mask away endian bit */
55
56#define PV_PUT 0
57#define PV_GET 1
58
59typedef union {
60 char *c;
61 __u32 i;
62 __u32 *ip;
63} irda_pv_t;
64
65typedef struct {
66 __u8 pi;
67 __u8 pl;
68 irda_pv_t pv;
69} irda_param_t;
70
71typedef int (*PI_HANDLER)(void *self, irda_param_t *param, int get);
72typedef int (*PV_HANDLER)(void *self, __u8 *buf, int len, __u8 pi,
73 PV_TYPE type, PI_HANDLER func);
74
75typedef struct {
76 PI_HANDLER func; /* Handler for this parameter identifier */
77 PV_TYPE type; /* Data type for this parameter */
78} pi_minor_info_t;
79
80typedef struct {
81 pi_minor_info_t *pi_minor_call_table;
82 int len;
83} pi_major_info_t;
84
85typedef struct {
86 pi_major_info_t *tables;
87 int len;
88 __u8 pi_mask;
89 int pi_major_offset;
90} pi_param_info_t;
91
92int irda_param_pack(__u8 *buf, char *fmt, ...);
93
94int irda_param_insert(void *self, __u8 pi, __u8 *buf, int len,
95 pi_param_info_t *info);
96int irda_param_extract_all(void *self, __u8 *buf, int len,
97 pi_param_info_t *info);
98
99#define irda_param_insert_byte(buf,pi,pv) irda_param_pack(buf,"bbb",pi,1,pv)
100
101#endif /* IRDA_PARAMS_H */
102
diff --git a/include/net/irda/qos.h b/include/net/irda/qos.h
new file mode 100644
index 000000000000..9ae3d6bc2423
--- /dev/null
+++ b/include/net/irda/qos.h
@@ -0,0 +1,104 @@
1/*********************************************************************
2 *
3 * Filename: qos.h
4 * Version: 1.0
5 * Description: Quality of Service definitions
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Fri Sep 19 23:21:09 1997
9 * Modified at: Thu Dec 2 13:51:54 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#ifndef IRDA_QOS_H
32#define IRDA_QOS_H
33
34#include <linux/config.h>
35#include <linux/skbuff.h>
36
37#include <net/irda/parameters.h>
38
39#define PI_BAUD_RATE 0x01
40#define PI_MAX_TURN_TIME 0x82
41#define PI_DATA_SIZE 0x83
42#define PI_WINDOW_SIZE 0x84
43#define PI_ADD_BOFS 0x85
44#define PI_MIN_TURN_TIME 0x86
45#define PI_LINK_DISC 0x08
46
47#define IR_115200_MAX 0x3f
48
49/* Baud rates (first byte) */
50#define IR_2400 0x01
51#define IR_9600 0x02
52#define IR_19200 0x04
53#define IR_38400 0x08
54#define IR_57600 0x10
55#define IR_115200 0x20
56#define IR_576000 0x40
57#define IR_1152000 0x80
58
59/* Baud rates (second byte) */
60#define IR_4000000 0x01
61#define IR_16000000 0x02
62
63/* Quality of Service information */
64typedef struct {
65 __u32 value;
66 __u16 bits; /* LSB is first byte, MSB is second byte */
67} qos_value_t;
68
69struct qos_info {
70 magic_t magic;
71
72 qos_value_t baud_rate; /* IR_11520O | ... */
73 qos_value_t max_turn_time;
74 qos_value_t data_size;
75 qos_value_t window_size;
76 qos_value_t additional_bofs;
77 qos_value_t min_turn_time;
78 qos_value_t link_disc_time;
79
80 qos_value_t power;
81};
82
83extern int sysctl_max_baud_rate;
84extern int sysctl_max_inactive_time;
85
86void irda_init_max_qos_capabilies(struct qos_info *qos);
87void irda_qos_compute_intersection(struct qos_info *, struct qos_info *);
88
89__u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time);
90
91void irda_qos_bits_to_value(struct qos_info *qos);
92
93/* So simple, how could we not inline those two ?
94 * Note : one byte is 10 bits if you include start and stop bits
95 * Jean II */
96#define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \
97 speed * min_turn_time / 10000000 \
98)
99#define irlap_xbofs_in_usec(speed, xbofs) ( \
100 xbofs * 10000000 / speed \
101)
102
103#endif
104
diff --git a/include/net/irda/timer.h b/include/net/irda/timer.h
new file mode 100644
index 000000000000..2c5d8864ab77
--- /dev/null
+++ b/include/net/irda/timer.h
@@ -0,0 +1,104 @@
1/*********************************************************************
2 *
3 * Filename: timer.h
4 * Version:
5 * Description:
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sat Aug 16 00:59:29 1997
9 * Modified at: Thu Oct 7 12:25:24 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997, 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
24 *
25 ********************************************************************/
26
27#ifndef TIMER_H
28#define TIMER_H
29
30#include <linux/timer.h>
31
32#include <asm/param.h> /* for HZ */
33
34#include <net/irda/irda.h>
35
36/* A few forward declarations (to make compiler happy) */
37struct irlmp_cb;
38struct irlap_cb;
39struct lsap_cb;
40struct lap_cb;
41
42/*
43 * Timeout definitions, some defined in IrLAP 6.13.5 - p. 92
44 */
45#define POLL_TIMEOUT (450*HZ/1000) /* Must never exceed 500 ms */
46#define FINAL_TIMEOUT (500*HZ/1000) /* Must never exceed 500 ms */
47
48/*
49 * Normally twice of p-timer. Note 3, IrLAP 6.3.11.2 - p. 60 suggests
50 * at least twice duration of the P-timer.
51 */
52#define WD_TIMEOUT (POLL_TIMEOUT*2)
53
54#define MEDIABUSY_TIMEOUT (500*HZ/1000) /* 500 msec */
55#define SMALLBUSY_TIMEOUT (100*HZ/1000) /* 100 msec - IrLAP 6.13.4 */
56
57/*
58 * Slot timer must never exceed 85 ms, and must always be at least 25 ms,
59 * suggested to 75-85 msec by IrDA lite. This doesn't work with a lot of
60 * devices, and other stackes uses a lot more, so it's best we do it as well
61 * (Note : this is the default value and sysctl overides it - Jean II)
62 */
63#define SLOT_TIMEOUT (90*HZ/1000)
64
65/*
66 * The latest discovery frame (XID) is longer due to the extra discovery
67 * information (hints, device name...). This is its extra length.
68 * We use that when setting the query timeout. Jean II
69 */
70#define XIDEXTRA_TIMEOUT (34*HZ/1000) /* 34 msec */
71
72#define WATCHDOG_TIMEOUT (20*HZ) /* 20 sec */
73
74typedef void (*TIMER_CALLBACK)(void *);
75
76static inline void irda_start_timer(struct timer_list *ptimer, int timeout,
77 void* data, TIMER_CALLBACK callback)
78{
79 ptimer->function = (void (*)(unsigned long)) callback;
80 ptimer->data = (unsigned long) data;
81
82 /* Set new value for timer (update or add timer).
83 * We use mod_timer() because it's more efficient and also
84 * safer with respect to race conditions - Jean II */
85 mod_timer(ptimer, jiffies + timeout);
86}
87
88
89void irlap_start_slot_timer(struct irlap_cb *self, int timeout);
90void irlap_start_query_timer(struct irlap_cb *self, int S, int s);
91void irlap_start_final_timer(struct irlap_cb *self, int timeout);
92void irlap_start_wd_timer(struct irlap_cb *self, int timeout);
93void irlap_start_backoff_timer(struct irlap_cb *self, int timeout);
94
95void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout);
96void irlap_stop_mbusy_timer(struct irlap_cb *);
97
98void irlmp_start_watchdog_timer(struct lsap_cb *, int timeout);
99void irlmp_start_discovery_timer(struct irlmp_cb *, int timeout);
100void irlmp_start_idle_timer(struct lap_cb *, int timeout);
101void irlmp_stop_idle_timer(struct lap_cb *self);
102
103#endif
104
diff --git a/include/net/irda/wrapper.h b/include/net/irda/wrapper.h
new file mode 100644
index 000000000000..98768b3f9e31
--- /dev/null
+++ b/include/net/irda/wrapper.h
@@ -0,0 +1,58 @@
1/*********************************************************************
2 *
3 * Filename: wrapper.h
4 * Version: 1.2
5 * Description: IrDA SIR async wrapper layer
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Aug 4 20:40:53 1997
9 * Modified at: Tue Jan 11 12:37:29 2000
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
23 *
24 ********************************************************************/
25
26#ifndef WRAPPER_H
27#define WRAPPER_H
28
29#include <linux/types.h>
30#include <linux/skbuff.h>
31#include <linux/netdevice.h>
32
33#include <net/irda/irda_device.h> /* iobuff_t */
34
35#define BOF 0xc0 /* Beginning of frame */
36#define XBOF 0xff
37#define EOF 0xc1 /* End of frame */
38#define CE 0x7d /* Control escape */
39
40#define STA BOF /* Start flag */
41#define STO EOF /* End flag */
42
43#define IRDA_TRANS 0x20 /* Asynchronous transparency modifier */
44
45/* States for receving a frame in async mode */
46enum {
47 OUTSIDE_FRAME,
48 BEGIN_FRAME,
49 LINK_ESCAPE,
50 INSIDE_FRAME
51};
52
53/* Proto definitions */
54int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize);
55void async_unwrap_char(struct net_device *dev, struct net_device_stats *stats,
56 iobuff_t *buf, __u8 byte);
57
58#endif
diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
new file mode 100644
index 000000000000..44edd48f1234
--- /dev/null
+++ b/include/net/iw_handler.h
@@ -0,0 +1,540 @@
1/*
2 * This file define the new driver API for Wireless Extensions
3 *
4 * Version : 6 21.6.04
5 *
6 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
7 * Copyright (c) 2001-2004 Jean Tourrilhes, All Rights Reserved.
8 */
9
10#ifndef _IW_HANDLER_H
11#define _IW_HANDLER_H
12
13/************************** DOCUMENTATION **************************/
14/*
15 * Initial driver API (1996 -> onward) :
16 * -----------------------------------
17 * The initial API just sends the IOCTL request received from user space
18 * to the driver (via the driver ioctl handler). The driver has to
19 * handle all the rest...
20 *
21 * The initial API also defines a specific handler in struct net_device
22 * to handle wireless statistics.
23 *
24 * The initial APIs served us well and has proven a reasonably good design.
25 * However, there is a few shortcommings :
26 * o No events, everything is a request to the driver.
27 * o Large ioctl function in driver with gigantic switch statement
28 * (i.e. spaghetti code).
29 * o Driver has to mess up with copy_to/from_user, and in many cases
30 * does it unproperly. Common mistakes are :
31 * * buffer overflows (no checks or off by one checks)
32 * * call copy_to/from_user with irq disabled
33 * o The user space interface is tied to ioctl because of the use
34 * copy_to/from_user.
35 *
36 * New driver API (2002 -> onward) :
37 * -------------------------------
38 * The new driver API is just a bunch of standard functions (handlers),
39 * each handling a specific Wireless Extension. The driver just export
40 * the list of handler it supports, and those will be called apropriately.
41 *
42 * I tried to keep the main advantage of the previous API (simplicity,
43 * efficiency and light weight), and also I provide a good dose of backward
44 * compatibility (most structures are the same, driver can use both API
45 * simultaneously, ...).
46 * Hopefully, I've also addressed the shortcomming of the initial API.
47 *
48 * The advantage of the new API are :
49 * o Handling of Extensions in driver broken in small contained functions
50 * o Tighter checks of ioctl before calling the driver
51 * o Flexible commit strategy (at least, the start of it)
52 * o Backward compatibility (can be mixed with old API)
53 * o Driver doesn't have to worry about memory and user-space issues
54 * The last point is important for the following reasons :
55 * o You are now able to call the new driver API from any API you
56 * want (including from within other parts of the kernel).
57 * o Common mistakes are avoided (buffer overflow, user space copy
58 * with irq disabled and so on).
59 *
60 * The Drawback of the new API are :
61 * o bloat (especially kernel)
62 * o need to migrate existing drivers to new API
63 * My initial testing shows that the new API adds around 3kB to the kernel
64 * and save between 0 and 5kB from a typical driver.
65 * Also, as all structures and data types are unchanged, the migration is
66 * quite straightforward (but tedious).
67 *
68 * ---
69 *
70 * The new driver API is defined below in this file. User space should
71 * not be aware of what's happening down there...
72 *
73 * A new kernel wrapper is in charge of validating the IOCTLs and calling
74 * the appropriate driver handler. This is implemented in :
75 * # net/core/wireless.c
76 *
77 * The driver export the list of handlers in :
78 * # include/linux/netdevice.h (one place)
79 *
80 * The new driver API is available for WIRELESS_EXT >= 13.
81 * Good luck with migration to the new API ;-)
82 */
83
84/* ---------------------- THE IMPLEMENTATION ---------------------- */
85/*
86 * Some of the choice I've made are pretty controversials. Defining an
87 * API is very much weighting compromises. This goes into some of the
88 * details and the thinking behind the implementation.
89 *
90 * Implementation goals :
91 * --------------------
92 * The implementation goals were as follow :
93 * o Obvious : you should not need a PhD to understand what's happening,
94 * the benefit is easier maintainance.
95 * o Flexible : it should accommodate a wide variety of driver
96 * implementations and be as flexible as the old API.
97 * o Lean : it should be efficient memory wise to minimise the impact
98 * on kernel footprint.
99 * o Transparent to user space : the large number of user space
100 * applications that use Wireless Extensions should not need
101 * any modifications.
102 *
103 * Array of functions versus Struct of functions
104 * ---------------------------------------------
105 * 1) Having an array of functions allow the kernel code to access the
106 * handler in a single lookup, which is much more efficient (think hash
107 * table here).
108 * 2) The only drawback is that driver writer may put their handler in
109 * the wrong slot. This is trivial to test (I set the frequency, the
110 * bitrate changes). Once the handler is in the proper slot, it will be
111 * there forever, because the array is only extended at the end.
112 * 3) Backward/forward compatibility : adding new handler just require
113 * extending the array, so you can put newer driver in older kernel
114 * without having to patch the kernel code (and vice versa).
115 *
116 * All handler are of the same generic type
117 * ----------------------------------------
118 * That's a feature !!!
119 * 1) Having a generic handler allow to have generic code, which is more
120 * efficient. If each of the handler was individually typed I would need
121 * to add a big switch in the kernel (== more bloat). This solution is
122 * more scalable, adding new Wireless Extensions doesn't add new code.
123 * 2) You can use the same handler in different slots of the array. For
124 * hardware, it may be more efficient or logical to handle multiple
125 * Wireless Extensions with a single function, and the API allow you to
126 * do that. (An example would be a single record on the card to control
127 * both bitrate and frequency, the handler would read the old record,
128 * modify it according to info->cmd and rewrite it).
129 *
130 * Functions prototype uses union iwreq_data
131 * -----------------------------------------
132 * Some would have prefered functions defined this way :
133 * static int mydriver_ioctl_setrate(struct net_device *dev,
134 * long rate, int auto)
135 * 1) The kernel code doesn't "validate" the content of iwreq_data, and
136 * can't do it (different hardware may have different notion of what a
137 * valid frequency is), so we don't pretend that we do it.
138 * 2) The above form is not extendable. If I want to add a flag (for
139 * example to distinguish setting max rate and basic rate), I would
140 * break the prototype. Using iwreq_data is more flexible.
141 * 3) Also, the above form is not generic (see above).
142 * 4) I don't expect driver developper using the wrong field of the
143 * union (Doh !), so static typechecking doesn't add much value.
144 * 5) Lastly, you can skip the union by doing :
145 * static int mydriver_ioctl_setrate(struct net_device *dev,
146 * struct iw_request_info *info,
147 * struct iw_param *rrq,
148 * char *extra)
149 * And then adding the handler in the array like this :
150 * (iw_handler) mydriver_ioctl_setrate, // SIOCSIWRATE
151 *
152 * Using functions and not a registry
153 * ----------------------------------
154 * Another implementation option would have been for every instance to
155 * define a registry (a struct containing all the Wireless Extensions)
156 * and only have a function to commit the registry to the hardware.
157 * 1) This approach can be emulated by the current code, but not
158 * vice versa.
159 * 2) Some drivers don't keep any configuration in the driver, for them
160 * adding such a registry would be a significant bloat.
161 * 3) The code to translate from Wireless Extension to native format is
162 * needed anyway, so it would not reduce significantely the amount of code.
163 * 4) The current approach only selectively translate Wireless Extensions
164 * to native format and only selectively set, whereas the registry approach
165 * would require to translate all WE and set all parameters for any single
166 * change.
167 * 5) For many Wireless Extensions, the GET operation return the current
168 * dynamic value, not the value that was set.
169 *
170 * This header is <net/iw_handler.h>
171 * ---------------------------------
172 * 1) This header is kernel space only and should not be exported to
173 * user space. Headers in "include/linux/" are exported, headers in
174 * "include/net/" are not.
175 *
176 * Mixed 32/64 bit issues
177 * ----------------------
178 * The Wireless Extensions are designed to be 64 bit clean, by using only
179 * datatypes with explicit storage size.
180 * There are some issues related to kernel and user space using different
181 * memory model, and in particular 64bit kernel with 32bit user space.
182 * The problem is related to struct iw_point, that contains a pointer
183 * that *may* need to be translated.
184 * This is quite messy. The new API doesn't solve this problem (it can't),
185 * but is a step in the right direction :
186 * 1) Meta data about each ioctl is easily available, so we know what type
187 * of translation is needed.
188 * 2) The move of data between kernel and user space is only done in a single
189 * place in the kernel, so adding specific hooks in there is possible.
190 * 3) In the long term, it allows to move away from using ioctl as the
191 * user space API.
192 *
193 * So many comments and so few code
194 * --------------------------------
195 * That's a feature. Comments won't bloat the resulting kernel binary.
196 */
197
198/***************************** INCLUDES *****************************/
199
200#include <linux/wireless.h> /* IOCTL user space API */
201#include <linux/if_ether.h>
202
203/***************************** VERSION *****************************/
204/*
205 * This constant is used to know which version of the driver API is
206 * available. Hopefully, this will be pretty stable and no changes
207 * will be needed...
208 * I just plan to increment with each new version.
209 */
210#define IW_HANDLER_VERSION 6
211
212/*
213 * Changes :
214 *
215 * V2 to V3
216 * --------
217 * - Move event definition in <linux/wireless.h>
218 * - Add Wireless Event support :
219 * o wireless_send_event() prototype
220 * o iwe_stream_add_event/point() inline functions
221 * V3 to V4
222 * --------
223 * - Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes
224 *
225 * V4 to V5
226 * --------
227 * - Add new spy support : struct iw_spy_data & prototypes
228 *
229 * V5 to V6
230 * --------
231 * - Change the way we get to spy_data method for added safety
232 * - Remove spy #ifdef, they are always on -> cleaner code
233 * - Add IW_DESCR_FLAG_NOMAX flag for very large requests
234 * - Start migrating get_wireless_stats to struct iw_handler_def
235 */
236
237/**************************** CONSTANTS ****************************/
238
239/* Enhanced spy support available */
240#define IW_WIRELESS_SPY
241#define IW_WIRELESS_THRSPY
242
243/* Special error message for the driver to indicate that we
244 * should do a commit after return from the iw_handler */
245#define EIWCOMMIT EINPROGRESS
246
247/* Flags available in struct iw_request_info */
248#define IW_REQUEST_FLAG_NONE 0x0000 /* No flag so far */
249
250/* Type of headers we know about (basically union iwreq_data) */
251#define IW_HEADER_TYPE_NULL 0 /* Not available */
252#define IW_HEADER_TYPE_CHAR 2 /* char [IFNAMSIZ] */
253#define IW_HEADER_TYPE_UINT 4 /* __u32 */
254#define IW_HEADER_TYPE_FREQ 5 /* struct iw_freq */
255#define IW_HEADER_TYPE_ADDR 6 /* struct sockaddr */
256#define IW_HEADER_TYPE_POINT 8 /* struct iw_point */
257#define IW_HEADER_TYPE_PARAM 9 /* struct iw_param */
258#define IW_HEADER_TYPE_QUAL 10 /* struct iw_quality */
259
260/* Handling flags */
261/* Most are not implemented. I just use them as a reminder of some
262 * cool features we might need one day ;-) */
263#define IW_DESCR_FLAG_NONE 0x0000 /* Obvious */
264/* Wrapper level flags */
265#define IW_DESCR_FLAG_DUMP 0x0001 /* Not part of the dump command */
266#define IW_DESCR_FLAG_EVENT 0x0002 /* Generate an event on SET */
267#define IW_DESCR_FLAG_RESTRICT 0x0004 /* GET : request is ROOT only */
268 /* SET : Omit payload from generated iwevent */
269#define IW_DESCR_FLAG_NOMAX 0x0008 /* GET : no limit on request size */
270/* Driver level flags */
271#define IW_DESCR_FLAG_WAIT 0x0100 /* Wait for driver event */
272
273/****************************** TYPES ******************************/
274
275/* ----------------------- WIRELESS HANDLER ----------------------- */
276/*
277 * A wireless handler is just a standard function, that looks like the
278 * ioctl handler.
279 * We also define there how a handler list look like... As the Wireless
280 * Extension space is quite dense, we use a simple array, which is faster
281 * (that's the perfect hash table ;-).
282 */
283
284/*
285 * Meta data about the request passed to the iw_handler.
286 * Most handlers can safely ignore what's in there.
287 * The 'cmd' field might come handy if you want to use the same handler
288 * for multiple command...
289 * This struct is also my long term insurance. I can add new fields here
290 * without breaking the prototype of iw_handler...
291 */
292struct iw_request_info
293{
294 __u16 cmd; /* Wireless Extension command */
295 __u16 flags; /* More to come ;-) */
296};
297
298struct net_device;
299
300/*
301 * This is how a function handling a Wireless Extension should look
302 * like (both get and set, standard and private).
303 */
304typedef int (*iw_handler)(struct net_device *dev, struct iw_request_info *info,
305 union iwreq_data *wrqu, char *extra);
306
307/*
308 * This define all the handler that the driver export.
309 * As you need only one per driver type, please use a static const
310 * shared by all driver instances... Same for the members...
311 * This will be linked from net_device in <linux/netdevice.h>
312 */
313struct iw_handler_def
314{
315 /* Number of handlers defined (more precisely, index of the
316 * last defined handler + 1) */
317 __u16 num_standard;
318 __u16 num_private;
319 /* Number of private arg description */
320 __u16 num_private_args;
321
322 /* Array of handlers for standard ioctls
323 * We will call dev->wireless_handlers->standard[ioctl - SIOCSIWNAME]
324 */
325 const iw_handler * standard;
326
327 /* Array of handlers for private ioctls
328 * Will call dev->wireless_handlers->private[ioctl - SIOCIWFIRSTPRIV]
329 */
330 const iw_handler * private;
331
332 /* Arguments of private handler. This one is just a list, so you
333 * can put it in any order you want and should not leave holes...
334 * We will automatically export that to user space... */
335 const struct iw_priv_args * private_args;
336
337 /* This field will be *removed* in the next version of WE */
338 long spy_offset; /* DO NOT USE */
339
340 /* New location of get_wireless_stats, to de-bloat struct net_device.
341 * The old pointer in struct net_device will be gradually phased
342 * out, and drivers are encouraged to use this one... */
343 struct iw_statistics* (*get_wireless_stats)(struct net_device *dev);
344};
345
346/* ---------------------- IOCTL DESCRIPTION ---------------------- */
347/*
348 * One of the main goal of the new interface is to deal entirely with
349 * user space/kernel space memory move.
350 * For that, we need to know :
351 * o if iwreq is a pointer or contain the full data
352 * o what is the size of the data to copy
353 *
354 * For private IOCTLs, we use the same rules as used by iwpriv and
355 * defined in struct iw_priv_args.
356 *
357 * For standard IOCTLs, things are quite different and we need to
358 * use the stuctures below. Actually, this struct is also more
359 * efficient, but that's another story...
360 */
361
362/*
363 * Describe how a standard IOCTL looks like.
364 */
365struct iw_ioctl_description
366{
367 __u8 header_type; /* NULL, iw_point or other */
368 __u8 token_type; /* Future */
369 __u16 token_size; /* Granularity of payload */
370 __u16 min_tokens; /* Min acceptable token number */
371 __u16 max_tokens; /* Max acceptable token number */
372 __u32 flags; /* Special handling of the request */
373};
374
375/* Need to think of short header translation table. Later. */
376
377/* --------------------- ENHANCED SPY SUPPORT --------------------- */
378/*
379 * In the old days, the driver was handling spy support all by itself.
380 * Now, the driver can delegate this task to Wireless Extensions.
381 * It needs to include this struct in its private part and use the
382 * standard spy iw_handler.
383 */
384
385/*
386 * Instance specific spy data, i.e. addresses spied and quality for them.
387 */
388struct iw_spy_data
389{
390 /* --- Standard spy support --- */
391 int spy_number;
392 u_char spy_address[IW_MAX_SPY][ETH_ALEN];
393 struct iw_quality spy_stat[IW_MAX_SPY];
394 /* --- Enhanced spy support (event) */
395 struct iw_quality spy_thr_low; /* Low threshold */
396 struct iw_quality spy_thr_high; /* High threshold */
397 u_char spy_thr_under[IW_MAX_SPY];
398};
399
400/* --------------------- DEVICE WIRELESS DATA --------------------- */
401/*
402 * This is all the wireless data specific to a device instance that
403 * is managed by the core of Wireless Extensions.
404 * We only keep pointer to those structures, so that a driver is free
405 * to share them between instances.
406 * This structure should be initialised before registering the device.
407 * Access to this data follow the same rules as any other struct net_device
408 * data (i.e. valid as long as struct net_device exist, same locking rules).
409 */
410struct iw_public_data {
411 /* Driver enhanced spy support */
412 struct iw_spy_data * spy_data;
413};
414
415/**************************** PROTOTYPES ****************************/
416/*
417 * Functions part of the Wireless Extensions (defined in net/core/wireless.c).
418 * Those may be called only within the kernel.
419 */
420
421/* First : function strictly used inside the kernel */
422
423/* Handle /proc/net/wireless, called in net/code/dev.c */
424extern int dev_get_wireless_info(char * buffer, char **start, off_t offset,
425 int length);
426
427/* Handle IOCTLs, called in net/code/dev.c */
428extern int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd);
429
430/* Second : functions that may be called by driver modules */
431
432/* Send a single event to user space */
433extern void wireless_send_event(struct net_device * dev,
434 unsigned int cmd,
435 union iwreq_data * wrqu,
436 char * extra);
437
438/* We may need a function to send a stream of events to user space.
439 * More on that later... */
440
441/* Standard handler for SIOCSIWSPY */
442extern int iw_handler_set_spy(struct net_device * dev,
443 struct iw_request_info * info,
444 union iwreq_data * wrqu,
445 char * extra);
446/* Standard handler for SIOCGIWSPY */
447extern int iw_handler_get_spy(struct net_device * dev,
448 struct iw_request_info * info,
449 union iwreq_data * wrqu,
450 char * extra);
451/* Standard handler for SIOCSIWTHRSPY */
452extern int iw_handler_set_thrspy(struct net_device * dev,
453 struct iw_request_info *info,
454 union iwreq_data * wrqu,
455 char * extra);
456/* Standard handler for SIOCGIWTHRSPY */
457extern int iw_handler_get_thrspy(struct net_device * dev,
458 struct iw_request_info *info,
459 union iwreq_data * wrqu,
460 char * extra);
461/* Driver call to update spy records */
462extern void wireless_spy_update(struct net_device * dev,
463 unsigned char * address,
464 struct iw_quality * wstats);
465
466/************************* INLINE FUNTIONS *************************/
467/*
468 * Function that are so simple that it's more efficient inlining them
469 */
470
471/*------------------------------------------------------------------*/
472/*
473 * Wrapper to add an Wireless Event to a stream of events.
474 */
475static inline char *
476iwe_stream_add_event(char * stream, /* Stream of events */
477 char * ends, /* End of stream */
478 struct iw_event *iwe, /* Payload */
479 int event_len) /* Real size of payload */
480{
481 /* Check if it's possible */
482 if((stream + event_len) < ends) {
483 iwe->len = event_len;
484 memcpy(stream, (char *) iwe, event_len);
485 stream += event_len;
486 }
487 return stream;
488}
489
490/*------------------------------------------------------------------*/
491/*
492 * Wrapper to add an short Wireless Event containing a pointer to a
493 * stream of events.
494 */
495static inline char *
496iwe_stream_add_point(char * stream, /* Stream of events */
497 char * ends, /* End of stream */
498 struct iw_event *iwe, /* Payload */
499 char * extra)
500{
501 int event_len = IW_EV_POINT_LEN + iwe->u.data.length;
502 /* Check if it's possible */
503 if((stream + event_len) < ends) {
504 iwe->len = event_len;
505 memcpy(stream, (char *) iwe, IW_EV_POINT_LEN);
506 memcpy(stream + IW_EV_POINT_LEN, extra, iwe->u.data.length);
507 stream += event_len;
508 }
509 return stream;
510}
511
512/*------------------------------------------------------------------*/
513/*
514 * Wrapper to add a value to a Wireless Event in a stream of events.
515 * Be careful, this one is tricky to use properly :
516 * At the first run, you need to have (value = event + IW_EV_LCP_LEN).
517 */
518static inline char *
519iwe_stream_add_value(char * event, /* Event in the stream */
520 char * value, /* Value in event */
521 char * ends, /* End of stream */
522 struct iw_event *iwe, /* Payload */
523 int event_len) /* Real size of payload */
524{
525 /* Don't duplicate LCP */
526 event_len -= IW_EV_LCP_LEN;
527
528 /* Check if it's possible */
529 if((value + event_len) < ends) {
530 /* Add new value */
531 memcpy(value, (char *) iwe + IW_EV_LCP_LEN, event_len);
532 value += event_len;
533 /* Patch LCP */
534 iwe->len = value - event;
535 memcpy(event, (char *) iwe, IW_EV_LCP_LEN);
536 }
537 return value;
538}
539
540#endif /* _IW_HANDLER_H */
diff --git a/include/net/lapb.h b/include/net/lapb.h
new file mode 100644
index 000000000000..96cb5ddaa9f1
--- /dev/null
+++ b/include/net/lapb.h
@@ -0,0 +1,152 @@
1#ifndef _LAPB_H
2#define _LAPB_H
3#include <linux/lapb.h>
4
5#define LAPB_HEADER_LEN 20 /* LAPB over Ethernet + a bit more */
6
7#define LAPB_ACK_PENDING_CONDITION 0x01
8#define LAPB_REJECT_CONDITION 0x02
9#define LAPB_PEER_RX_BUSY_CONDITION 0x04
10
11/* Control field templates */
12#define LAPB_I 0x00 /* Information frames */
13#define LAPB_S 0x01 /* Supervisory frames */
14#define LAPB_U 0x03 /* Unnumbered frames */
15
16#define LAPB_RR 0x01 /* Receiver ready */
17#define LAPB_RNR 0x05 /* Receiver not ready */
18#define LAPB_REJ 0x09 /* Reject */
19
20#define LAPB_SABM 0x2F /* Set Asynchronous Balanced Mode */
21#define LAPB_SABME 0x6F /* Set Asynchronous Balanced Mode Extended */
22#define LAPB_DISC 0x43 /* Disconnect */
23#define LAPB_DM 0x0F /* Disconnected mode */
24#define LAPB_UA 0x63 /* Unnumbered acknowledge */
25#define LAPB_FRMR 0x87 /* Frame reject */
26
27#define LAPB_ILLEGAL 0x100 /* Impossible to be a real frame type */
28
29#define LAPB_SPF 0x10 /* Poll/final bit for standard LAPB */
30#define LAPB_EPF 0x01 /* Poll/final bit for extended LAPB */
31
32#define LAPB_FRMR_W 0x01 /* Control field invalid */
33#define LAPB_FRMR_X 0x02 /* I field invalid */
34#define LAPB_FRMR_Y 0x04 /* I field too long */
35#define LAPB_FRMR_Z 0x08 /* Invalid N(R) */
36
37#define LAPB_POLLOFF 0
38#define LAPB_POLLON 1
39
40/* LAPB C-bit */
41#define LAPB_COMMAND 1
42#define LAPB_RESPONSE 2
43
44#define LAPB_ADDR_A 0x03
45#define LAPB_ADDR_B 0x01
46#define LAPB_ADDR_C 0x0F
47#define LAPB_ADDR_D 0x07
48
49/* Define Link State constants. */
50enum {
51 LAPB_STATE_0, /* Disconnected State */
52 LAPB_STATE_1, /* Awaiting Connection State */
53 LAPB_STATE_2, /* Awaiting Disconnection State */
54 LAPB_STATE_3, /* Data Transfer State */
55 LAPB_STATE_4 /* Frame Reject State */
56};
57
58#define LAPB_DEFAULT_MODE (LAPB_STANDARD | LAPB_SLP | LAPB_DTE)
59#define LAPB_DEFAULT_WINDOW 7 /* Window=7 */
60#define LAPB_DEFAULT_T1 (5 * HZ) /* T1=5s */
61#define LAPB_DEFAULT_T2 (1 * HZ) /* T2=1s */
62#define LAPB_DEFAULT_N2 20 /* N2=20 */
63
64#define LAPB_SMODULUS 8
65#define LAPB_EMODULUS 128
66
67/*
68 * Information about the current frame.
69 */
70struct lapb_frame {
71 unsigned short type; /* Parsed type */
72 unsigned short nr, ns; /* N(R), N(S) */
73 unsigned char cr; /* Command/Response */
74 unsigned char pf; /* Poll/Final */
75 unsigned char control[2]; /* Original control data*/
76};
77
78/*
79 * The per LAPB connection control structure.
80 */
81struct lapb_cb {
82 struct list_head node;
83 struct net_device *dev;
84
85 /* Link status fields */
86 unsigned int mode;
87 unsigned char state;
88 unsigned short vs, vr, va;
89 unsigned char condition;
90 unsigned short n2, n2count;
91 unsigned short t1, t2;
92 struct timer_list t1timer, t2timer;
93
94 /* Internal control information */
95 struct sk_buff_head write_queue;
96 struct sk_buff_head ack_queue;
97 unsigned char window;
98 struct lapb_register_struct callbacks;
99
100 /* FRMR control information */
101 struct lapb_frame frmr_data;
102 unsigned char frmr_type;
103
104 atomic_t refcnt;
105};
106
107/* lapb_iface.c */
108extern void lapb_connect_confirmation(struct lapb_cb *lapb, int);
109extern void lapb_connect_indication(struct lapb_cb *lapb, int);
110extern void lapb_disconnect_confirmation(struct lapb_cb *lapb, int);
111extern void lapb_disconnect_indication(struct lapb_cb *lapb, int);
112extern int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *);
113extern int lapb_data_transmit(struct lapb_cb *lapb, struct sk_buff *);
114
115/* lapb_in.c */
116extern void lapb_data_input(struct lapb_cb *lapb, struct sk_buff *);
117
118/* lapb_out.c */
119extern void lapb_kick(struct lapb_cb *lapb);
120extern void lapb_transmit_buffer(struct lapb_cb *lapb, struct sk_buff *, int);
121extern void lapb_establish_data_link(struct lapb_cb *lapb);
122extern void lapb_enquiry_response(struct lapb_cb *lapb);
123extern void lapb_timeout_response(struct lapb_cb *lapb);
124extern void lapb_check_iframes_acked(struct lapb_cb *lapb, unsigned short);
125extern void lapb_check_need_response(struct lapb_cb *lapb, int, int);
126
127/* lapb_subr.c */
128extern void lapb_clear_queues(struct lapb_cb *lapb);
129extern void lapb_frames_acked(struct lapb_cb *lapb, unsigned short);
130extern void lapb_requeue_frames(struct lapb_cb *lapb);
131extern int lapb_validate_nr(struct lapb_cb *lapb, unsigned short);
132extern int lapb_decode(struct lapb_cb *lapb, struct sk_buff *, struct lapb_frame *);
133extern void lapb_send_control(struct lapb_cb *lapb, int, int, int);
134extern void lapb_transmit_frmr(struct lapb_cb *lapb);
135
136/* lapb_timer.c */
137extern void lapb_start_t1timer(struct lapb_cb *lapb);
138extern void lapb_start_t2timer(struct lapb_cb *lapb);
139extern void lapb_stop_t1timer(struct lapb_cb *lapb);
140extern void lapb_stop_t2timer(struct lapb_cb *lapb);
141extern int lapb_t1timer_running(struct lapb_cb *lapb);
142
143/*
144 * Debug levels.
145 * 0 = Off
146 * 1 = State Changes
147 * 2 = Packets I/O and State Changes
148 * 3 = Hex dumps, Packets I/O and State Changes.
149 */
150#define LAPB_DEBUG 0
151
152#endif
diff --git a/include/net/llc.h b/include/net/llc.h
new file mode 100644
index 000000000000..c9aed2a8b4e2
--- /dev/null
+++ b/include/net/llc.h
@@ -0,0 +1,99 @@
1#ifndef LLC_H
2#define LLC_H
3/*
4 * Copyright (c) 1997 by Procom Technology, Inc.
5 * 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14
15#include <linux/if.h>
16#include <linux/if_ether.h>
17#include <linux/list.h>
18#include <linux/spinlock.h>
19
20struct net_device;
21struct packet_type;
22struct sk_buff;
23
24struct llc_addr {
25 unsigned char lsap;
26 unsigned char mac[IFHWADDRLEN];
27};
28
29#define LLC_SAP_STATE_INACTIVE 1
30#define LLC_SAP_STATE_ACTIVE 2
31
32/**
33 * struct llc_sap - Defines the SAP component
34 *
35 * @station - station this sap belongs to
36 * @state - sap state
37 * @p_bit - only lowest-order bit used
38 * @f_bit - only lowest-order bit used
39 * @laddr - SAP value in this 'lsap'
40 * @node - entry in station sap_list
41 * @sk_list - LLC sockets this one manages
42 */
43struct llc_sap {
44 unsigned char state;
45 unsigned char p_bit;
46 unsigned char f_bit;
47 int (*rcv_func)(struct sk_buff *skb,
48 struct net_device *dev,
49 struct packet_type *pt);
50 struct llc_addr laddr;
51 struct list_head node;
52 struct {
53 rwlock_t lock;
54 struct hlist_head list;
55 } sk_list;
56};
57
58#define LLC_DEST_INVALID 0 /* Invalid LLC PDU type */
59#define LLC_DEST_SAP 1 /* Type 1 goes here */
60#define LLC_DEST_CONN 2 /* Type 2 goes here */
61
62extern struct list_head llc_sap_list;
63extern rwlock_t llc_sap_list_lock;
64extern unsigned char llc_station_mac_sa[ETH_ALEN];
65
66extern int llc_rcv(struct sk_buff *skb, struct net_device *dev,
67 struct packet_type *pt);
68
69extern int llc_mac_hdr_init(struct sk_buff *skb,
70 unsigned char *sa, unsigned char *da);
71
72extern void llc_add_pack(int type, void (*handler)(struct llc_sap *sap,
73 struct sk_buff *skb));
74extern void llc_remove_pack(int type);
75
76extern void llc_set_station_handler(void (*handler)(struct sk_buff *skb));
77
78extern struct llc_sap *llc_sap_open(unsigned char lsap,
79 int (*rcv)(struct sk_buff *skb,
80 struct net_device *dev,
81 struct packet_type *pt));
82extern void llc_sap_close(struct llc_sap *sap);
83
84extern struct llc_sap *llc_sap_find(unsigned char sap_value);
85
86extern int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
87 unsigned char *dmac, unsigned char dsap);
88
89extern int llc_station_init(void);
90extern void llc_station_exit(void);
91
92#ifdef CONFIG_PROC_FS
93extern int llc_proc_init(void);
94extern void llc_proc_exit(void);
95#else
96#define llc_proc_init() (0)
97#define llc_proc_exit() do { } while(0)
98#endif /* CONFIG_PROC_FS */
99#endif /* LLC_H */
diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
new file mode 100644
index 000000000000..df83f69d2de4
--- /dev/null
+++ b/include/net/llc_c_ac.h
@@ -0,0 +1,202 @@
1#ifndef LLC_C_AC_H
2#define LLC_C_AC_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14/* Connection component state transition actions */
15/*
16 * Connection state transition actions
17 * (Fb = F bit; Pb = P bit; Xb = X bit)
18 */
19#define LLC_CONN_AC_CLR_REMOTE_BUSY 1
20#define LLC_CONN_AC_CONN_IND 2
21#define LLC_CONN_AC_CONN_CONFIRM 3
22#define LLC_CONN_AC_DATA_IND 4
23#define LLC_CONN_AC_DISC_IND 5
24#define LLC_CONN_AC_RESET_IND 6
25#define LLC_CONN_AC_RESET_CONFIRM 7
26#define LLC_CONN_AC_REPORT_STATUS 8
27#define LLC_CONN_AC_CLR_REMOTE_BUSY_IF_Fb_EQ_1 9
28#define LLC_CONN_AC_STOP_REJ_TMR_IF_DATA_FLAG_EQ_2 10
29#define LLC_CONN_AC_SEND_DISC_CMD_Pb_SET_X 11
30#define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_Pb 12
31#define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_1 13
32#define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_F_FLAG 14
33#define LLC_CONN_AC_SEND_FRMR_RSP_Fb_SET_X 15
34#define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_0 16
35#define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_Pb 17
36#define LLC_CONN_AC_SEND_I_CMD_Pb_SET_1 18
37#define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1 19
38#define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1_OR_SEND_RR 20
39#define LLC_CONN_AC_SEND_I_XXX_Xb_SET_0 21
40#define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0 22
41#define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0_OR_SEND_RR 23
42#define LLC_CONN_AC_RESEND_I_RSP_Fb_SET_1 24
43#define LLC_CONN_AC_SEND_REJ_CMD_Pb_SET_1 25
44#define LLC_CONN_AC_SEND_REJ_RSP_Fb_SET_1 26
45#define LLC_CONN_AC_SEND_REJ_XXX_Xb_SET_0 27
46#define LLC_CONN_AC_SEND_RNR_CMD_Pb_SET_1 28
47#define LLC_CONN_AC_SEND_RNR_RSP_Fb_SET_1 29
48#define LLC_CONN_AC_SEND_RNR_XXX_Xb_SET_0 30
49#define LLC_CONN_AC_SET_REMOTE_BUSY 31
50#define LLC_CONN_AC_OPTIONAL_SEND_RNR_XXX_Xb_SET_0 32
51#define LLC_CONN_AC_SEND_RR_CMD_Pb_SET_1 33
52#define LLC_CONN_AC_SEND_ACK_CMD_Pb_SET_1 34
53#define LLC_CONN_AC_SEND_RR_RSP_Fb_SET_1 35
54#define LLC_CONN_AC_SEND_ACK_RSP_Fb_SET_1 36
55#define LLC_CONN_AC_SEND_RR_XXX_Xb_SET_0 37
56#define LLC_CONN_AC_SEND_ACK_XXX_Xb_SET_0 38
57#define LLC_CONN_AC_SEND_SABME_CMD_Pb_SET_X 39
58#define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_Pb 40
59#define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_F_FLAG 41
60#define LLC_CONN_AC_S_FLAG_SET_0 42
61#define LLC_CONN_AC_S_FLAG_SET_1 43
62#define LLC_CONN_AC_START_P_TMR 44
63#define LLC_CONN_AC_START_ACK_TMR 45
64#define LLC_CONN_AC_START_REJ_TMR 46
65#define LLC_CONN_AC_START_ACK_TMR_IF_NOT_RUNNING 47
66#define LLC_CONN_AC_STOP_ACK_TMR 48
67#define LLC_CONN_AC_STOP_P_TMR 49
68#define LLC_CONN_AC_STOP_REJ_TMR 50
69#define LLC_CONN_AC_STOP_ALL_TMRS 51
70#define LLC_CONN_AC_STOP_OTHER_TMRS 52
71#define LLC_CONN_AC_UPDATE_Nr_RECEIVED 53
72#define LLC_CONN_AC_UPDATE_P_FLAG 54
73#define LLC_CONN_AC_DATA_FLAG_SET_2 55
74#define LLC_CONN_AC_DATA_FLAG_SET_0 56
75#define LLC_CONN_AC_DATA_FLAG_SET_1 57
76#define LLC_CONN_AC_DATA_FLAG_SET_1_IF_DATA_FLAG_EQ_0 58
77#define LLC_CONN_AC_P_FLAG_SET_0 59
78#define LLC_CONN_AC_P_FLAG_SET_P 60
79#define LLC_CONN_AC_REMOTE_BUSY_SET_0 61
80#define LLC_CONN_AC_RETRY_CNT_SET_0 62
81#define LLC_CONN_AC_RETRY_CNT_INC_BY_1 63
82#define LLC_CONN_AC_Vr_SET_0 64
83#define LLC_CONN_AC_Vr_INC_BY_1 65
84#define LLC_CONN_AC_Vs_SET_0 66
85#define LLC_CONN_AC_Vs_SET_Nr 67
86#define LLC_CONN_AC_F_FLAG_SET_P 68
87#define LLC_CONN_AC_STOP_SENDACK_TMR 70
88#define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING 71
89
90typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
91
92extern int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
93extern int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
94extern int llc_conn_ac_conn_confirm(struct sock* sk, struct sk_buff *skb);
95extern int llc_conn_ac_data_ind(struct sock* sk, struct sk_buff *skb);
96extern int llc_conn_ac_disc_ind(struct sock* sk, struct sk_buff *skb);
97extern int llc_conn_ac_rst_ind(struct sock* sk, struct sk_buff *skb);
98extern int llc_conn_ac_rst_confirm(struct sock* sk, struct sk_buff *skb);
99extern int llc_conn_ac_clear_remote_busy_if_f_eq_1(struct sock* sk,
100 struct sk_buff *skb);
101extern int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock* sk,
102 struct sk_buff *skb);
103extern int llc_conn_ac_send_disc_cmd_p_set_x(struct sock* sk,
104 struct sk_buff *skb);
105extern int llc_conn_ac_send_dm_rsp_f_set_p(struct sock* sk,
106 struct sk_buff *skb);
107extern int llc_conn_ac_send_dm_rsp_f_set_1(struct sock* sk,
108 struct sk_buff *skb);
109extern int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock* sk,
110 struct sk_buff *skb);
111extern int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock* sk,
112 struct sk_buff *skb);
113extern int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock* sk,
114 struct sk_buff *skb);
115extern int llc_conn_ac_send_i_cmd_p_set_1(struct sock* sk, struct sk_buff *skb);
116extern int llc_conn_ac_send_i_xxx_x_set_0(struct sock* sk, struct sk_buff *skb);
117extern int llc_conn_ac_resend_i_xxx_x_set_0(struct sock* sk,
118 struct sk_buff *skb);
119extern int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock* sk,
120 struct sk_buff *skb);
121extern int llc_conn_ac_resend_i_rsp_f_set_1(struct sock* sk,
122 struct sk_buff *skb);
123extern int llc_conn_ac_send_rej_cmd_p_set_1(struct sock* sk,
124 struct sk_buff *skb);
125extern int llc_conn_ac_send_rej_rsp_f_set_1(struct sock* sk,
126 struct sk_buff *skb);
127extern int llc_conn_ac_send_rej_xxx_x_set_0(struct sock* sk,
128 struct sk_buff *skb);
129extern int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock* sk,
130 struct sk_buff *skb);
131extern int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock* sk,
132 struct sk_buff *skb);
133extern int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock* sk,
134 struct sk_buff *skb);
135extern int llc_conn_ac_set_remote_busy(struct sock* sk, struct sk_buff *skb);
136extern int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock* sk,
137 struct sk_buff *skb);
138extern int llc_conn_ac_send_rr_cmd_p_set_1(struct sock* sk,
139 struct sk_buff *skb);
140extern int llc_conn_ac_send_rr_rsp_f_set_1(struct sock* sk,
141 struct sk_buff *skb);
142extern int llc_conn_ac_send_ack_rsp_f_set_1(struct sock* sk,
143 struct sk_buff *skb);
144extern int llc_conn_ac_send_rr_xxx_x_set_0(struct sock* sk,
145 struct sk_buff *skb);
146extern int llc_conn_ac_send_ack_xxx_x_set_0(struct sock* sk,
147 struct sk_buff *skb);
148extern int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock* sk,
149 struct sk_buff *skb);
150extern int llc_conn_ac_send_ua_rsp_f_set_p(struct sock* sk,
151 struct sk_buff *skb);
152extern int llc_conn_ac_set_s_flag_0(struct sock* sk, struct sk_buff *skb);
153extern int llc_conn_ac_set_s_flag_1(struct sock* sk, struct sk_buff *skb);
154extern int llc_conn_ac_start_p_timer(struct sock* sk, struct sk_buff *skb);
155extern int llc_conn_ac_start_ack_timer(struct sock* sk, struct sk_buff *skb);
156extern int llc_conn_ac_start_rej_timer(struct sock* sk, struct sk_buff *skb);
157extern int llc_conn_ac_start_ack_tmr_if_not_running(struct sock* sk,
158 struct sk_buff *skb);
159extern int llc_conn_ac_stop_ack_timer(struct sock* sk, struct sk_buff *skb);
160extern int llc_conn_ac_stop_p_timer(struct sock* sk, struct sk_buff *skb);
161extern int llc_conn_ac_stop_rej_timer(struct sock* sk, struct sk_buff *skb);
162extern int llc_conn_ac_stop_all_timers(struct sock* sk, struct sk_buff *skb);
163extern int llc_conn_ac_stop_other_timers(struct sock* sk, struct sk_buff *skb);
164extern int llc_conn_ac_upd_nr_received(struct sock* sk, struct sk_buff *skb);
165extern int llc_conn_ac_inc_tx_win_size(struct sock* sk, struct sk_buff *skb);
166extern int llc_conn_ac_dec_tx_win_size(struct sock* sk, struct sk_buff *skb);
167extern int llc_conn_ac_upd_p_flag(struct sock* sk, struct sk_buff *skb);
168extern int llc_conn_ac_set_data_flag_2(struct sock* sk, struct sk_buff *skb);
169extern int llc_conn_ac_set_data_flag_0(struct sock* sk, struct sk_buff *skb);
170extern int llc_conn_ac_set_data_flag_1(struct sock* sk, struct sk_buff *skb);
171extern int llc_conn_ac_set_data_flag_1_if_data_flag_eq_0(struct sock* sk,
172 struct sk_buff *skb);
173extern int llc_conn_ac_set_p_flag_0(struct sock* sk, struct sk_buff *skb);
174extern int llc_conn_ac_set_remote_busy_0(struct sock* sk, struct sk_buff *skb);
175extern int llc_conn_ac_set_retry_cnt_0(struct sock* sk, struct sk_buff *skb);
176extern int llc_conn_ac_set_cause_flag_0(struct sock* sk, struct sk_buff *skb);
177extern int llc_conn_ac_set_cause_flag_1(struct sock* sk, struct sk_buff *skb);
178extern int llc_conn_ac_inc_retry_cnt_by_1(struct sock* sk, struct sk_buff *skb);
179extern int llc_conn_ac_set_vr_0(struct sock* sk, struct sk_buff *skb);
180extern int llc_conn_ac_inc_vr_by_1(struct sock* sk, struct sk_buff *skb);
181extern int llc_conn_ac_set_vs_0(struct sock* sk, struct sk_buff *skb);
182extern int llc_conn_ac_set_vs_nr(struct sock* sk, struct sk_buff *skb);
183extern int llc_conn_ac_rst_vs(struct sock* sk, struct sk_buff *skb);
184extern int llc_conn_ac_upd_vs(struct sock* sk, struct sk_buff *skb);
185extern int llc_conn_disc(struct sock* sk, struct sk_buff *skb);
186extern int llc_conn_reset(struct sock* sk, struct sk_buff *skb);
187extern int llc_conn_ac_disc_confirm(struct sock* sk, struct sk_buff *skb);
188extern u8 llc_circular_between(u8 a, u8 b, u8 c);
189extern int llc_conn_ac_send_ack_if_needed(struct sock* sk, struct sk_buff *skb);
190extern int llc_conn_ac_adjust_npta_by_rr(struct sock* sk, struct sk_buff *skb);
191extern int llc_conn_ac_adjust_npta_by_rnr(struct sock* sk, struct sk_buff *skb);
192extern int llc_conn_ac_rst_sendack_flag(struct sock* sk, struct sk_buff *skb);
193extern int llc_conn_ac_send_i_rsp_as_ack(struct sock* sk, struct sk_buff *skb);
194extern int llc_conn_ac_send_i_as_ack(struct sock* sk, struct sk_buff *skb);
195
196extern void llc_conn_busy_tmr_cb(unsigned long timeout_data);
197extern void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data);
198extern void llc_conn_ack_tmr_cb(unsigned long timeout_data);
199extern void llc_conn_rej_tmr_cb(unsigned long timeout_data);
200
201extern void llc_conn_set_p_flag(struct sock *sk, u8 value);
202#endif /* LLC_C_AC_H */
diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
new file mode 100644
index 000000000000..23a409381fa9
--- /dev/null
+++ b/include/net/llc_c_ev.h
@@ -0,0 +1,269 @@
1#ifndef LLC_C_EV_H
2#define LLC_C_EV_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14
15#include <net/sock.h>
16
17/* Connection component state transition event qualifiers */
18/* Types of events (possible values in 'ev->type') */
19#define LLC_CONN_EV_TYPE_SIMPLE 1
20#define LLC_CONN_EV_TYPE_CONDITION 2
21#define LLC_CONN_EV_TYPE_PRIM 3
22#define LLC_CONN_EV_TYPE_PDU 4 /* command/response PDU */
23#define LLC_CONN_EV_TYPE_ACK_TMR 5
24#define LLC_CONN_EV_TYPE_P_TMR 6
25#define LLC_CONN_EV_TYPE_REJ_TMR 7
26#define LLC_CONN_EV_TYPE_BUSY_TMR 8
27#define LLC_CONN_EV_TYPE_RPT_STATUS 9
28#define LLC_CONN_EV_TYPE_SENDACK_TMR 10
29
30#define NBR_CONN_EV 5
31/* Connection events which cause state transitions when fully qualified */
32
33#define LLC_CONN_EV_CONN_REQ 1
34#define LLC_CONN_EV_CONN_RESP 2
35#define LLC_CONN_EV_DATA_REQ 3
36#define LLC_CONN_EV_DISC_REQ 4
37#define LLC_CONN_EV_RESET_REQ 5
38#define LLC_CONN_EV_RESET_RESP 6
39#define LLC_CONN_EV_LOCAL_BUSY_DETECTED 7
40#define LLC_CONN_EV_LOCAL_BUSY_CLEARED 8
41#define LLC_CONN_EV_RX_BAD_PDU 9
42#define LLC_CONN_EV_RX_DISC_CMD_Pbit_SET_X 10
43#define LLC_CONN_EV_RX_DM_RSP_Fbit_SET_X 11
44#define LLC_CONN_EV_RX_FRMR_RSP_Fbit_SET_X 12
45#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X 13
46#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_UNEXPD_Ns 14
47#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_INVAL_Ns 15
48#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X 16
49#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_UNEXPD_Ns 17
50#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_INVAL_Ns 18
51#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_X 19
52#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_X 20
53#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_X 21
54#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_X 22
55#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_X 23
56#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_X 24
57#define LLC_CONN_EV_RX_SABME_CMD_Pbit_SET_X 25
58#define LLC_CONN_EV_RX_UA_RSP_Fbit_SET_X 26
59#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_X 27
60#define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_X 28
61#define LLC_CONN_EV_RX_XXX_YYY 29
62#define LLC_CONN_EV_RX_ZZZ_CMD_Pbit_SET_X_INVAL_Nr 30
63#define LLC_CONN_EV_RX_ZZZ_RSP_Fbit_SET_X_INVAL_Nr 31
64#define LLC_CONN_EV_P_TMR_EXP 32
65#define LLC_CONN_EV_ACK_TMR_EXP 33
66#define LLC_CONN_EV_REJ_TMR_EXP 34
67#define LLC_CONN_EV_BUSY_TMR_EXP 35
68#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_1 36
69#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_0 37
70#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns 38
71#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns 39
72#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1_UNEXPD_Ns 40
73#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1_UNEXPD_Ns 41
74#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0 42
75#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0 43
76#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1 44
77#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_0 45
78#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_0 46
79#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_1 47
80#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_1 48
81#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_0 49
82#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_0 50
83#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_1 51
84#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_1 52
85#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_0 53
86#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_0 54
87#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_1 55
88#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1 56
89#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_1 57
90#define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_1 58
91#define LLC_CONN_EV_TX_BUFF_FULL 59
92
93#define LLC_CONN_EV_INIT_P_F_CYCLE 100
94/*
95 * Connection event qualifiers; for some events a certain combination of
96 * these qualifiers must be TRUE before event recognized valid for state;
97 * these constants act as indexes into the Event Qualifier function
98 * table
99 */
100#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_1 1
101#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_0 2
102#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_2 3
103#define LLC_CONN_EV_QFY_P_FLAG_EQ_1 4
104#define LLC_CONN_EV_QFY_P_FLAG_EQ_0 5
105#define LLC_CONN_EV_QFY_P_FLAG_EQ_Fbit 6
106#define LLC_CONN_EV_QFY_REMOTE_BUSY_EQ_0 7
107#define LLC_CONN_EV_QFY_RETRY_CNT_LT_N2 8
108#define LLC_CONN_EV_QFY_RETRY_CNT_GTE_N2 9
109#define LLC_CONN_EV_QFY_S_FLAG_EQ_1 10
110#define LLC_CONN_EV_QFY_S_FLAG_EQ_0 11
111#define LLC_CONN_EV_QFY_INIT_P_F_CYCLE 12
112
113struct llc_conn_state_ev {
114 u8 type;
115 u8 prim;
116 u8 prim_type;
117 u8 reason;
118 u8 status;
119 u8 ind_prim;
120 u8 cfm_prim;
121};
122
123static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
124{
125 return (struct llc_conn_state_ev *)skb->cb;
126}
127
128typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
129typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
130
131extern int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
132extern int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
133extern int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb);
134extern int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb);
135extern int llc_conn_ev_local_busy_detected(struct sock *sk,
136 struct sk_buff *skb);
137extern int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb);
138extern int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb);
139extern int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk,
140 struct sk_buff *skb);
141extern int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk,
142 struct sk_buff *skb);
143extern int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk,
144 struct sk_buff *skb);
145extern int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
146 struct sk_buff *skb);
147extern int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk,
148 struct sk_buff *skb);
149extern int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
150 struct sk_buff *skb);
151extern int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
152 struct sk_buff *skb);
153extern int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk,
154 struct sk_buff *skb);
155extern int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk,
156 struct sk_buff *skb);
157extern int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk,
158 struct sk_buff *skb);
159extern int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk,
160 struct sk_buff *skb);
161extern int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk,
162 struct sk_buff *skb);
163extern int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk,
164 struct sk_buff *skb);
165extern int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk,
166 struct sk_buff *skb);
167extern int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb);
168extern int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb);
169extern int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb);
170extern int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb);
171extern int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb);
172/* NOT_USED functions and their variations */
173extern int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk,
174 struct sk_buff *skb);
175extern int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk,
176 struct sk_buff *skb);
177extern int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
178 struct sk_buff *skb);
179extern int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
180 struct sk_buff *skb);
181extern int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk,
182 struct sk_buff *skb);
183extern int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk,
184 struct sk_buff *skb);
185extern int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
186 struct sk_buff *skb);
187extern int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
188 struct sk_buff *skb);
189extern int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk,
190 struct sk_buff *skb);
191extern int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk,
192 struct sk_buff *skb);
193extern int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk,
194 struct sk_buff *skb);
195extern int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk,
196 struct sk_buff *skb);
197extern int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk,
198 struct sk_buff *skb);
199extern int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk,
200 struct sk_buff *skb);
201extern int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk,
202 struct sk_buff *skb);
203extern int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk,
204 struct sk_buff *skb);
205extern int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk,
206 struct sk_buff *skb);
207extern int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk,
208 struct sk_buff *skb);
209extern int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk,
210 struct sk_buff *skb);
211extern int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk,
212 struct sk_buff *skb);
213extern int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk,
214 struct sk_buff *skb);
215extern int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk,
216 struct sk_buff *skb);
217extern int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb);
218extern int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb);
219extern int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb);
220
221/* Available connection action qualifiers */
222extern int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk,
223 struct sk_buff *skb);
224extern int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk,
225 struct sk_buff *skb);
226extern int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk,
227 struct sk_buff *skb);
228extern int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb);
229extern int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk,
230 struct sk_buff *skb);
231extern int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk,
232 struct sk_buff *skb);
233extern int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb);
234extern int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb);
235extern int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk,
236 struct sk_buff *skb);
237extern int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk,
238 struct sk_buff *skb);
239extern int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk,
240 struct sk_buff *skb);
241extern int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk,
242 struct sk_buff *skb);
243extern int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb);
244extern int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb);
245extern int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk,
246 struct sk_buff *skb);
247extern int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk,
248 struct sk_buff *skb);
249extern int llc_conn_ev_qlfy_set_status_conn(struct sock *sk,
250 struct sk_buff *skb);
251extern int llc_conn_ev_qlfy_set_status_disc(struct sock *sk,
252 struct sk_buff *skb);
253extern int llc_conn_ev_qlfy_set_status_failed(struct sock *sk,
254 struct sk_buff *skb);
255extern int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk,
256 struct sk_buff *skb);
257extern int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk,
258 struct sk_buff *skb);
259extern int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk,
260 struct sk_buff *skb);
261extern int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk,
262 struct sk_buff *skb);
263
264static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb)
265{
266 return atomic_read(&sk->sk_rmem_alloc) + skb->truesize <
267 (unsigned)sk->sk_rcvbuf;
268}
269#endif /* LLC_C_EV_H */
diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
new file mode 100644
index 000000000000..0e79cfba4b3b
--- /dev/null
+++ b/include/net/llc_c_st.h
@@ -0,0 +1,48 @@
1#ifndef LLC_C_ST_H
2#define LLC_C_ST_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14/* Connection component state management */
15/* connection states */
16#define LLC_CONN_OUT_OF_SVC 0 /* prior to allocation */
17
18#define LLC_CONN_STATE_ADM 1 /* disc, initial state */
19#define LLC_CONN_STATE_SETUP 2 /* disconnected state */
20#define LLC_CONN_STATE_NORMAL 3 /* connected state */
21#define LLC_CONN_STATE_BUSY 4 /* connected state */
22#define LLC_CONN_STATE_REJ 5 /* connected state */
23#define LLC_CONN_STATE_AWAIT 6 /* connected state */
24#define LLC_CONN_STATE_AWAIT_BUSY 7 /* connected state */
25#define LLC_CONN_STATE_AWAIT_REJ 8 /* connected state */
26#define LLC_CONN_STATE_D_CONN 9 /* disconnected state */
27#define LLC_CONN_STATE_RESET 10 /* disconnected state */
28#define LLC_CONN_STATE_ERROR 11 /* disconnected state */
29#define LLC_CONN_STATE_TEMP 12 /* disconnected state */
30
31#define NBR_CONN_STATES 12 /* size of state table */
32#define NO_STATE_CHANGE 100
33
34/* Connection state table structure */
35struct llc_conn_state_trans {
36 llc_conn_ev_t ev;
37 u8 next_state;
38 llc_conn_ev_qfyr_t *ev_qualifiers;
39 llc_conn_action_t *ev_actions;
40};
41
42struct llc_conn_state {
43 u8 current_state;
44 struct llc_conn_state_trans **transitions;
45};
46
47extern struct llc_conn_state llc_conn_state_table[];
48#endif /* LLC_C_ST_H */
diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h
new file mode 100644
index 000000000000..8ad3bc2c23d7
--- /dev/null
+++ b/include/net/llc_conn.h
@@ -0,0 +1,119 @@
1#ifndef LLC_CONN_H
2#define LLC_CONN_H
3/*
4 * Copyright (c) 1997 by Procom Technology, Inc.
5 * 2001, 2002 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14#include <linux/timer.h>
15#include <net/llc_if.h>
16#include <net/sock.h>
17#include <linux/llc.h>
18
19#define LLC_EVENT 1
20#define LLC_PACKET 2
21
22#define LLC_P_TIME 2
23#define LLC_ACK_TIME 1
24#define LLC_REJ_TIME 3
25#define LLC_BUSY_TIME 3
26
27struct llc_timer {
28 struct timer_list timer;
29 u16 expire; /* timer expire time */
30};
31
32struct llc_sock {
33 /* struct sock must be the first member of llc_sock */
34 struct sock sk;
35 struct sockaddr_llc addr; /* address sock is bound to */
36 u8 state; /* state of connection */
37 struct llc_sap *sap; /* pointer to parent SAP */
38 struct llc_addr laddr; /* lsap/mac pair */
39 struct llc_addr daddr; /* dsap/mac pair */
40 struct net_device *dev; /* device to send to remote */
41 u8 retry_count; /* number of retries */
42 u8 ack_must_be_send;
43 u8 first_pdu_Ns;
44 u8 npta;
45 struct llc_timer ack_timer;
46 struct llc_timer pf_cycle_timer;
47 struct llc_timer rej_sent_timer;
48 struct llc_timer busy_state_timer; /* ind busy clr at remote LLC */
49 u8 vS; /* seq# next in-seq I-PDU tx'd*/
50 u8 vR; /* seq# next in-seq I-PDU rx'd*/
51 u32 n2; /* max nbr re-tx's for timeout*/
52 u32 n1; /* max nbr octets in I PDU */
53 u8 k; /* tx window size; max = 127 */
54 u8 rw; /* rx window size; max = 127 */
55 u8 p_flag; /* state flags */
56 u8 f_flag;
57 u8 s_flag;
58 u8 data_flag;
59 u8 remote_busy_flag;
60 u8 cause_flag;
61 struct sk_buff_head pdu_unack_q; /* PUDs sent/waiting ack */
62 u16 link; /* network layer link number */
63 u8 X; /* a temporary variable */
64 u8 ack_pf; /* this flag indicates what is
65 the P-bit of acknowledge */
66 u8 failed_data_req; /* recognize that already exist a
67 failed llc_data_req_handler
68 (tx_buffer_full or unacceptable
69 state */
70 u8 dec_step;
71 u8 inc_cntr;
72 u8 dec_cntr;
73 u8 connect_step;
74 u8 last_nr; /* NR of last pdu received */
75 u32 rx_pdu_hdr; /* used for saving header of last pdu
76 received and caused sending FRMR.
77 Used for resending FRMR */
78};
79
80static inline struct llc_sock *llc_sk(const struct sock *sk)
81{
82 return (struct llc_sock *)sk;
83}
84
85static __inline__ void llc_set_backlog_type(struct sk_buff *skb, char type)
86{
87 skb->cb[sizeof(skb->cb) - 1] = type;
88}
89
90static __inline__ char llc_backlog_type(struct sk_buff *skb)
91{
92 return skb->cb[sizeof(skb->cb) - 1];
93}
94
95extern struct sock *llc_sk_alloc(int family, int priority, struct proto *prot);
96extern void llc_sk_free(struct sock *sk);
97
98extern void llc_sk_reset(struct sock *sk);
99
100/* Access to a connection */
101extern int llc_conn_state_process(struct sock *sk, struct sk_buff *skb);
102extern void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb);
103extern void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb);
104extern void llc_conn_resend_i_pdu_as_cmd(struct sock *sk, u8 nr,
105 u8 first_p_bit);
106extern void llc_conn_resend_i_pdu_as_rsp(struct sock *sk, u8 nr,
107 u8 first_f_bit);
108extern int llc_conn_remove_acked_pdus(struct sock *conn, u8 nr,
109 u16 *how_many_unacked);
110extern struct sock *llc_lookup_established(struct llc_sap *sap,
111 struct llc_addr *daddr,
112 struct llc_addr *laddr);
113extern void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk);
114extern void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk);
115
116extern u8 llc_data_accept_state(u8 state);
117extern void llc_build_offset_table(void);
118extern int llc_release_sockets(struct llc_sap *sap);
119#endif /* LLC_CONN_H */
diff --git a/include/net/llc_if.h b/include/net/llc_if.h
new file mode 100644
index 000000000000..090eaa0d71f9
--- /dev/null
+++ b/include/net/llc_if.h
@@ -0,0 +1,101 @@
1#ifndef LLC_IF_H
2#define LLC_IF_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14/* Defines LLC interface to network layer */
15/* Available primitives */
16#include <linux/if.h>
17#include <linux/if_arp.h>
18#include <linux/llc.h>
19#include <net/llc.h>
20
21#define LLC_DATAUNIT_PRIM 1
22#define LLC_CONN_PRIM 2
23#define LLC_DATA_PRIM 3
24#define LLC_DISC_PRIM 4
25#define LLC_RESET_PRIM 5
26#define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */
27#define LLC_DISABLE_PRIM 7
28#define LLC_XID_PRIM 8
29#define LLC_TEST_PRIM 9
30#define LLC_SAP_ACTIVATION 10
31#define LLC_SAP_DEACTIVATION 11
32
33#define LLC_NBR_PRIMITIVES 11
34
35#define LLC_IND 1
36#define LLC_CONFIRM 2
37
38/* Primitive type */
39#define LLC_PRIM_TYPE_REQ 1
40#define LLC_PRIM_TYPE_IND 2
41#define LLC_PRIM_TYPE_RESP 3
42#define LLC_PRIM_TYPE_CONFIRM 4
43
44/* Reset reasons, remote entity or local LLC */
45#define LLC_RESET_REASON_REMOTE 1
46#define LLC_RESET_REASON_LOCAL 2
47
48/* Disconnect reasons */
49#define LLC_DISC_REASON_RX_DM_RSP_PDU 0
50#define LLC_DISC_REASON_RX_DISC_CMD_PDU 1
51#define LLC_DISC_REASON_ACK_TMR_EXP 2
52
53/* Confirm reasons */
54#define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */
55#define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */
56#define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */
57#define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */
58#define LLC_STATUS_RECEIVED 4 /* data conn */
59#define LLC_STATUS_REMOTE_BUSY 5 /* data conn */
60#define LLC_STATUS_REFUSE 6 /* data conn */
61#define LLC_STATUS_CONFLICT 7 /* disconnect conn */
62#define LLC_STATUS_RESET_DONE 8 /* */
63
64extern u8 llc_mac_null_var[IFHWADDRLEN];
65
66/**
67 * llc_mac_null - determines if a address is a null mac address
68 * @mac: Mac address to test if null.
69 *
70 * Determines if a given address is a null mac address. Returns 0 if the
71 * address is not a null mac, 1 if the address is a null mac.
72 */
73static __inline__ int llc_mac_null(u8 *mac)
74{
75 return !memcmp(mac, llc_mac_null_var, IFHWADDRLEN);
76}
77
78static __inline__ int llc_addrany(struct llc_addr *addr)
79{
80 return llc_mac_null(addr->mac) && !addr->lsap;
81}
82
83/**
84 * llc_mac_match - determines if two mac addresses are the same
85 * @mac1: First mac address to compare.
86 * @mac2: Second mac address to compare.
87 *
88 * Determines if two given mac address are the same. Returns 0 if there
89 * is not a complete match up to len, 1 if a complete match up to len is
90 * found.
91 */
92static __inline__ int llc_mac_match(u8 *mac1, u8 *mac2)
93{
94 return !memcmp(mac1, mac2, IFHWADDRLEN);
95}
96
97extern int llc_establish_connection(struct sock *sk, u8 *lmac,
98 u8 *dmac, u8 dsap);
99extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
100extern int llc_send_disc(struct sock *sk);
101#endif /* LLC_IF_H */
diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h
new file mode 100644
index 000000000000..f45c37d89cf7
--- /dev/null
+++ b/include/net/llc_pdu.h
@@ -0,0 +1,436 @@
1#ifndef LLC_PDU_H
2#define LLC_PDU_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14
15#include <linux/if_ether.h>
16#include <linux/if_tr.h>
17
18/* Lengths of frame formats */
19#define LLC_PDU_LEN_I 4 /* header and 2 control bytes */
20#define LLC_PDU_LEN_S 4
21#define LLC_PDU_LEN_U 3 /* header and 1 control byte */
22/* Known SAP addresses */
23#define LLC_GLOBAL_SAP 0xFF
24#define LLC_NULL_SAP 0x00 /* not network-layer visible */
25#define LLC_MGMT_INDIV 0x02 /* station LLC mgmt indiv addr */
26#define LLC_MGMT_GRP 0x03 /* station LLC mgmt group addr */
27#define LLC_RDE_SAP 0xA6 /* route ... */
28
29/* SAP field bit masks */
30#define LLC_ISO_RESERVED_SAP 0x02
31#define LLC_SAP_GROUP_DSAP 0x01
32#define LLC_SAP_RESP_SSAP 0x01
33
34/* Group/individual DSAP indicator is DSAP field */
35#define LLC_PDU_GROUP_DSAP_MASK 0x01
36#define LLC_PDU_IS_GROUP_DSAP(pdu) \
37 ((pdu->dsap & LLC_PDU_GROUP_DSAP_MASK) ? 0 : 1)
38#define LLC_PDU_IS_INDIV_DSAP(pdu) \
39 (!(pdu->dsap & LLC_PDU_GROUP_DSAP_MASK) ? 0 : 1)
40
41/* Command/response PDU indicator in SSAP field */
42#define LLC_PDU_CMD_RSP_MASK 0x01
43#define LLC_PDU_CMD 0
44#define LLC_PDU_RSP 1
45#define LLC_PDU_IS_CMD(pdu) ((pdu->ssap & LLC_PDU_RSP) ? 0 : 1)
46#define LLC_PDU_IS_RSP(pdu) ((pdu->ssap & LLC_PDU_RSP) ? 1 : 0)
47
48/* Get PDU type from 2 lowest-order bits of control field first byte */
49#define LLC_PDU_TYPE_I_MASK 0x01 /* 16-bit control field */
50#define LLC_PDU_TYPE_S_MASK 0x03
51#define LLC_PDU_TYPE_U_MASK 0x03 /* 8-bit control field */
52#define LLC_PDU_TYPE_MASK 0x03
53
54#define LLC_PDU_TYPE_I 0 /* first bit */
55#define LLC_PDU_TYPE_S 1 /* first two bits */
56#define LLC_PDU_TYPE_U 3 /* first two bits */
57
58#define LLC_PDU_TYPE_IS_I(pdu) \
59 ((!(pdu->ctrl_1 & LLC_PDU_TYPE_I_MASK)) ? 1 : 0)
60
61#define LLC_PDU_TYPE_IS_U(pdu) \
62 (((pdu->ctrl_1 & LLC_PDU_TYPE_U_MASK) == LLC_PDU_TYPE_U) ? 1 : 0)
63
64#define LLC_PDU_TYPE_IS_S(pdu) \
65 (((pdu->ctrl_1 & LLC_PDU_TYPE_S_MASK) == LLC_PDU_TYPE_S) ? 1 : 0)
66
67/* U-format PDU control field masks */
68#define LLC_U_PF_BIT_MASK 0x10 /* P/F bit mask */
69#define LLC_U_PF_IS_1(pdu) ((pdu->ctrl_1 & LLC_U_PF_BIT_MASK) ? 1 : 0)
70#define LLC_U_PF_IS_0(pdu) ((!(pdu->ctrl_1 & LLC_U_PF_BIT_MASK)) ? 1 : 0)
71
72#define LLC_U_PDU_CMD_MASK 0xEC /* cmd/rsp mask */
73#define LLC_U_PDU_CMD(pdu) (pdu->ctrl_1 & LLC_U_PDU_CMD_MASK)
74#define LLC_U_PDU_RSP(pdu) (pdu->ctrl_1 & LLC_U_PDU_CMD_MASK)
75
76#define LLC_1_PDU_CMD_UI 0x00 /* Type 1 cmds/rsps */
77#define LLC_1_PDU_CMD_XID 0xAC
78#define LLC_1_PDU_CMD_TEST 0xE0
79
80#define LLC_2_PDU_CMD_SABME 0x6C /* Type 2 cmds/rsps */
81#define LLC_2_PDU_CMD_DISC 0x40
82#define LLC_2_PDU_RSP_UA 0x60
83#define LLC_2_PDU_RSP_DM 0x0C
84#define LLC_2_PDU_RSP_FRMR 0x84
85
86/* Type 1 operations */
87
88/* XID information field bit masks */
89
90/* LLC format identifier (byte 1) */
91#define LLC_XID_FMT_ID 0x81 /* first byte must be this */
92
93/* LLC types/classes identifier (byte 2) */
94#define LLC_XID_CLASS_ZEROS_MASK 0xE0 /* these must be zeros */
95#define LLC_XID_CLASS_MASK 0x1F /* AND with byte to get below */
96
97#define LLC_XID_NULL_CLASS_1 0x01 /* if NULL LSAP...use these */
98#define LLC_XID_NULL_CLASS_2 0x03
99#define LLC_XID_NULL_CLASS_3 0x05
100#define LLC_XID_NULL_CLASS_4 0x07
101
102#define LLC_XID_NNULL_TYPE_1 0x01 /* if non-NULL LSAP...use these */
103#define LLC_XID_NNULL_TYPE_2 0x02
104#define LLC_XID_NNULL_TYPE_3 0x04
105#define LLC_XID_NNULL_TYPE_1_2 0x03
106#define LLC_XID_NNULL_TYPE_1_3 0x05
107#define LLC_XID_NNULL_TYPE_2_3 0x06
108#define LLC_XID_NNULL_ALL 0x07
109
110/* Sender Receive Window (byte 3) */
111#define LLC_XID_RW_MASK 0xFE /* AND with value to get below */
112
113#define LLC_XID_MIN_RW 0x02 /* lowest-order bit always zero */
114
115/* Type 2 operations */
116
117#define LLC_2_SEQ_NBR_MODULO ((u8) 128)
118
119/* I-PDU masks ('ctrl' is I-PDU control word) */
120#define LLC_I_GET_NS(pdu) (u8)((pdu->ctrl_1 & 0xFE) >> 1)
121#define LLC_I_GET_NR(pdu) (u8)((pdu->ctrl_2 & 0xFE) >> 1)
122
123#define LLC_I_PF_BIT_MASK 0x01
124
125#define LLC_I_PF_IS_0(pdu) ((!(pdu->ctrl_2 & LLC_I_PF_BIT_MASK)) ? 1 : 0)
126#define LLC_I_PF_IS_1(pdu) ((pdu->ctrl_2 & LLC_I_PF_BIT_MASK) ? 1 : 0)
127
128/* S-PDU supervisory commands and responses */
129
130#define LLC_S_PDU_CMD_MASK 0x0C
131#define LLC_S_PDU_CMD(pdu) (pdu->ctrl_1 & LLC_S_PDU_CMD_MASK)
132#define LLC_S_PDU_RSP(pdu) (pdu->ctrl_1 & LLC_S_PDU_CMD_MASK)
133
134#define LLC_2_PDU_CMD_RR 0x00 /* rx ready cmd */
135#define LLC_2_PDU_RSP_RR 0x00 /* rx ready rsp */
136#define LLC_2_PDU_CMD_REJ 0x08 /* reject PDU cmd */
137#define LLC_2_PDU_RSP_REJ 0x08 /* reject PDU rsp */
138#define LLC_2_PDU_CMD_RNR 0x04 /* rx not ready cmd */
139#define LLC_2_PDU_RSP_RNR 0x04 /* rx not ready rsp */
140
141#define LLC_S_PF_BIT_MASK 0x01
142#define LLC_S_PF_IS_0(pdu) ((!(pdu->ctrl_2 & LLC_S_PF_BIT_MASK)) ? 1 : 0)
143#define LLC_S_PF_IS_1(pdu) ((pdu->ctrl_2 & LLC_S_PF_BIT_MASK) ? 1 : 0)
144
145#define PDU_SUPV_GET_Nr(pdu) ((pdu->ctrl_2 & 0xFE) >> 1)
146#define PDU_GET_NEXT_Vr(sn) (++sn & ~LLC_2_SEQ_NBR_MODULO)
147
148/* FRMR information field macros */
149
150#define FRMR_INFO_LENGTH 5 /* 5 bytes of information */
151
152/*
153 * info is pointer to FRMR info field structure; 'rej_ctrl' is byte pointer
154 * (if U-PDU) or word pointer to rejected PDU control field
155 */
156#define FRMR_INFO_SET_REJ_CNTRL(info,rej_ctrl) \
157 info->rej_pdu_ctrl = ((*((u8 *) rej_ctrl) & \
158 LLC_PDU_TYPE_U) != LLC_PDU_TYPE_U ? \
159 (u16)*((u16 *) rej_ctrl) : \
160 (((u16) *((u8 *) rej_ctrl)) & 0x00FF))
161
162/*
163 * Info is pointer to FRMR info field structure; 'vs' is a byte containing
164 * send state variable value in low-order 7 bits (insure the lowest-order
165 * bit remains zero (0))
166 */
167#define FRMR_INFO_SET_Vs(info,vs) (info->curr_ssv = (((u8) vs) << 1))
168#define FRMR_INFO_SET_Vr(info,vr) (info->curr_rsv = (((u8) vr) << 1))
169
170/*
171 * Info is pointer to FRMR info field structure; 'cr' is a byte containing
172 * the C/R bit value in the low-order bit
173 */
174#define FRMR_INFO_SET_C_R_BIT(info, cr) (info->curr_rsv |= (((u8) cr) & 0x01))
175
176/*
177 * In the remaining five macros, 'info' is pointer to FRMR info field
178 * structure; 'ind' is a byte containing the bit value to set in the
179 * lowest-order bit)
180 */
181#define FRMR_INFO_SET_INVALID_PDU_CTRL_IND(info, ind) \
182 (info->ind_bits = ((info->ind_bits & 0xFE) | (((u8) ind) & 0x01)))
183
184#define FRMR_INFO_SET_INVALID_PDU_INFO_IND(info, ind) \
185 (info->ind_bits = ( (info->ind_bits & 0xFD) | (((u8) ind) & 0x02)))
186
187#define FRMR_INFO_SET_PDU_INFO_2LONG_IND(info, ind) \
188 (info->ind_bits = ( (info->ind_bits & 0xFB) | (((u8) ind) & 0x04)))
189
190#define FRMR_INFO_SET_PDU_INVALID_Nr_IND(info, ind) \
191 (info->ind_bits = ( (info->ind_bits & 0xF7) | (((u8) ind) & 0x08)))
192
193#define FRMR_INFO_SET_PDU_INVALID_Ns_IND(info, ind) \
194 (info->ind_bits = ( (info->ind_bits & 0xEF) | (((u8) ind) & 0x10)))
195
196/* Sequence-numbered PDU format (4 bytes in length) */
197struct llc_pdu_sn {
198 u8 dsap;
199 u8 ssap;
200 u8 ctrl_1;
201 u8 ctrl_2;
202};
203
204static inline struct llc_pdu_sn *llc_pdu_sn_hdr(struct sk_buff *skb)
205{
206 return (struct llc_pdu_sn *)skb->nh.raw;
207}
208
209/* Un-numbered PDU format (3 bytes in length) */
210struct llc_pdu_un {
211 u8 dsap;
212 u8 ssap;
213 u8 ctrl_1;
214};
215
216static inline struct llc_pdu_un *llc_pdu_un_hdr(struct sk_buff *skb)
217{
218 return (struct llc_pdu_un *)skb->nh.raw;
219}
220
221static inline void *llc_set_pdu_hdr(struct sk_buff *skb, void *ptr)
222{
223 return skb->nh.raw = ptr;
224}
225
226/**
227 * llc_pdu_header_init - initializes pdu header
228 * @skb: input skb that header must be set into it.
229 * @type: type of PDU (U, I or S).
230 * @ssap: source sap.
231 * @dsap: destination sap.
232 * @cr: command/response bit (0 or 1).
233 *
234 * This function sets DSAP, SSAP and command/Response bit in LLC header.
235 */
236static inline void llc_pdu_header_init(struct sk_buff *skb, u8 type,
237 u8 ssap, u8 dsap, u8 cr)
238{
239 const int hlen = type == LLC_PDU_TYPE_U ? 3 : 4;
240 struct llc_pdu_un *pdu = llc_set_pdu_hdr(skb, skb_push(skb, hlen));
241 pdu->dsap = dsap;
242 pdu->ssap = ssap;
243 pdu->ssap |= cr;
244}
245
246/**
247 * llc_pdu_decode_sa - extracs source address (MAC) of input frame
248 * @skb: input skb that source address must be extracted from it.
249 * @sa: pointer to source address (6 byte array).
250 *
251 * This function extracts source address(MAC) of input frame.
252 */
253static inline void llc_pdu_decode_sa(struct sk_buff *skb, u8 *sa)
254{
255 if (skb->protocol == ntohs(ETH_P_802_2))
256 memcpy(sa, eth_hdr(skb)->h_source, ETH_ALEN);
257 else if (skb->protocol == ntohs(ETH_P_TR_802_2))
258 memcpy(sa, tr_hdr(skb)->saddr, ETH_ALEN);
259}
260
261/**
262 * llc_pdu_decode_da - extracts dest address of input frame
263 * @skb: input skb that destination address must be extracted from it
264 * @sa: pointer to destination address (6 byte array).
265 *
266 * This function extracts destination address(MAC) of input frame.
267 */
268static inline void llc_pdu_decode_da(struct sk_buff *skb, u8 *da)
269{
270 if (skb->protocol == ntohs(ETH_P_802_2))
271 memcpy(da, eth_hdr(skb)->h_dest, ETH_ALEN);
272 else if (skb->protocol == ntohs(ETH_P_TR_802_2))
273 memcpy(da, tr_hdr(skb)->daddr, ETH_ALEN);
274}
275
276/**
277 * llc_pdu_decode_ssap - extracts source SAP of input frame
278 * @skb: input skb that source SAP must be extracted from it.
279 * @ssap: source SAP (output argument).
280 *
281 * This function extracts source SAP of input frame. Right bit of SSAP is
282 * command/response bit.
283 */
284static inline void llc_pdu_decode_ssap(struct sk_buff *skb, u8 *ssap)
285{
286 *ssap = llc_pdu_un_hdr(skb)->ssap & 0xFE;
287}
288
289/**
290 * llc_pdu_decode_dsap - extracts dest SAP of input frame
291 * @skb: input skb that destination SAP must be extracted from it.
292 * @dsap: destination SAP (output argument).
293 *
294 * This function extracts destination SAP of input frame. right bit of
295 * DSAP designates individual/group SAP.
296 */
297static inline void llc_pdu_decode_dsap(struct sk_buff *skb, u8 *dsap)
298{
299 *dsap = llc_pdu_un_hdr(skb)->dsap & 0xFE;
300}
301
302/**
303 * llc_pdu_init_as_ui_cmd - sets LLC header as UI PDU
304 * @skb: input skb that header must be set into it.
305 *
306 * This function sets third byte of LLC header as a UI PDU.
307 */
308static inline void llc_pdu_init_as_ui_cmd(struct sk_buff *skb)
309{
310 struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
311
312 pdu->ctrl_1 = LLC_PDU_TYPE_U;
313 pdu->ctrl_1 |= LLC_1_PDU_CMD_UI;
314}
315
316/**
317 * llc_pdu_init_as_test_cmd - sets PDU as TEST
318 * @skb - Address of the skb to build
319 *
320 * Sets a PDU as TEST
321 */
322static inline void llc_pdu_init_as_test_cmd(struct sk_buff *skb)
323{
324 struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
325
326 pdu->ctrl_1 = LLC_PDU_TYPE_U;
327 pdu->ctrl_1 |= LLC_1_PDU_CMD_TEST;
328 pdu->ctrl_1 |= LLC_U_PF_BIT_MASK;
329}
330
331/**
332 * llc_pdu_init_as_test_rsp - build TEST response PDU
333 * @skb: Address of the skb to build
334 * @ev_skb: The received TEST command PDU frame
335 *
336 * Builds a pdu frame as a TEST response.
337 */
338static inline void llc_pdu_init_as_test_rsp(struct sk_buff *skb,
339 struct sk_buff *ev_skb)
340{
341 struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
342
343 pdu->ctrl_1 = LLC_PDU_TYPE_U;
344 pdu->ctrl_1 |= LLC_1_PDU_CMD_TEST;
345 pdu->ctrl_1 |= LLC_U_PF_BIT_MASK;
346 if (ev_skb->protocol == ntohs(ETH_P_802_2)) {
347 struct llc_pdu_un *ev_pdu = llc_pdu_un_hdr(ev_skb);
348 int dsize;
349
350 dsize = ntohs(eth_hdr(ev_skb)->h_proto) - 3;
351 memcpy(((u8 *)pdu) + 3, ((u8 *)ev_pdu) + 3, dsize);
352 skb_put(skb, dsize);
353 }
354}
355
356/* LLC Type 1 XID command/response information fields format */
357struct llc_xid_info {
358 u8 fmt_id; /* always 0x18 for LLC */
359 u8 type; /* different if NULL/non-NULL LSAP */
360 u8 rw; /* sender receive window */
361};
362
363/**
364 * llc_pdu_init_as_xid_cmd - sets bytes 3, 4 & 5 of LLC header as XID
365 * @skb: input skb that header must be set into it.
366 *
367 * This function sets third,fourth,fifth and sixth bytes of LLC header as
368 * a XID PDU.
369 */
370static inline void llc_pdu_init_as_xid_cmd(struct sk_buff *skb,
371 u8 svcs_supported, u8 rx_window)
372{
373 struct llc_xid_info *xid_info;
374 struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
375
376 pdu->ctrl_1 = LLC_PDU_TYPE_U;
377 pdu->ctrl_1 |= LLC_1_PDU_CMD_XID;
378 pdu->ctrl_1 |= LLC_U_PF_BIT_MASK;
379 xid_info = (struct llc_xid_info *)(((u8 *)&pdu->ctrl_1) + 1);
380 xid_info->fmt_id = LLC_XID_FMT_ID; /* 0x81 */
381 xid_info->type = svcs_supported;
382 xid_info->rw = rx_window << 1; /* size of receive window */
383 skb_put(skb, 3);
384}
385
386/**
387 * llc_pdu_init_as_xid_rsp - builds XID response PDU
388 * @skb: Address of the skb to build
389 * @svcs_supported: The class of the LLC (I or II)
390 * @rx_window: The size of the receive window of the LLC
391 *
392 * Builds a pdu frame as an XID response.
393 */
394static inline void llc_pdu_init_as_xid_rsp(struct sk_buff *skb,
395 u8 svcs_supported, u8 rx_window)
396{
397 struct llc_xid_info *xid_info;
398 struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
399
400 pdu->ctrl_1 = LLC_PDU_TYPE_U;
401 pdu->ctrl_1 |= LLC_1_PDU_CMD_XID;
402 pdu->ctrl_1 |= LLC_U_PF_BIT_MASK;
403
404 xid_info = (struct llc_xid_info *)(((u8 *)&pdu->ctrl_1) + 1);
405 xid_info->fmt_id = LLC_XID_FMT_ID;
406 xid_info->type = svcs_supported;
407 xid_info->rw = rx_window << 1;
408 skb_put(skb, 3);
409}
410
411/* LLC Type 2 FRMR response information field format */
412struct llc_frmr_info {
413 u16 rej_pdu_ctrl; /* bits 1-8 if U-PDU */
414 u8 curr_ssv; /* current send state variable val */
415 u8 curr_rsv; /* current receive state variable */
416 u8 ind_bits; /* indicator bits set with macro */
417};
418
419extern void llc_pdu_set_cmd_rsp(struct sk_buff *skb, u8 type);
420extern void llc_pdu_set_pf_bit(struct sk_buff *skb, u8 bit_value);
421extern void llc_pdu_decode_pf_bit(struct sk_buff *skb, u8 *pf_bit);
422extern void llc_pdu_init_as_disc_cmd(struct sk_buff *skb, u8 p_bit);
423extern void llc_pdu_init_as_i_cmd(struct sk_buff *skb, u8 p_bit, u8 ns, u8 nr);
424extern void llc_pdu_init_as_rej_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
425extern void llc_pdu_init_as_rnr_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
426extern void llc_pdu_init_as_rr_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
427extern void llc_pdu_init_as_sabme_cmd(struct sk_buff *skb, u8 p_bit);
428extern void llc_pdu_init_as_dm_rsp(struct sk_buff *skb, u8 f_bit);
429extern void llc_pdu_init_as_frmr_rsp(struct sk_buff *skb,
430 struct llc_pdu_sn *prev_pdu,
431 u8 f_bit, u8 vs, u8 vr, u8 vzyxw);
432extern void llc_pdu_init_as_rr_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
433extern void llc_pdu_init_as_rej_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
434extern void llc_pdu_init_as_rnr_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
435extern void llc_pdu_init_as_ua_rsp(struct sk_buff *skb, u8 f_bit);
436#endif /* LLC_PDU_H */
diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
new file mode 100644
index 000000000000..37a3bbd02394
--- /dev/null
+++ b/include/net/llc_s_ac.h
@@ -0,0 +1,39 @@
1#ifndef LLC_S_AC_H
2#define LLC_S_AC_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14/* SAP component actions */
15#define SAP_ACT_UNITDATA_IND 1
16#define SAP_ACT_SEND_UI 2
17#define SAP_ACT_SEND_XID_C 3
18#define SAP_ACT_SEND_XID_R 4
19#define SAP_ACT_SEND_TEST_C 5
20#define SAP_ACT_SEND_TEST_R 6
21#define SAP_ACT_REPORT_STATUS 7
22#define SAP_ACT_XID_IND 8
23#define SAP_ACT_TEST_IND 9
24
25/* All action functions must look like this */
26typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
27
28extern int llc_sap_action_unitdata_ind(struct llc_sap *sap,
29 struct sk_buff *skb);
30extern int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
31extern int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb);
32extern int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb);
33extern int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb);
34extern int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb);
35extern int llc_sap_action_report_status(struct llc_sap *sap,
36 struct sk_buff *skb);
37extern int llc_sap_action_xid_ind(struct llc_sap *sap, struct sk_buff *skb);
38extern int llc_sap_action_test_ind(struct llc_sap *sap, struct sk_buff *skb);
39#endif /* LLC_S_AC_H */
diff --git a/include/net/llc_s_ev.h b/include/net/llc_s_ev.h
new file mode 100644
index 000000000000..e3acb9329e4a
--- /dev/null
+++ b/include/net/llc_s_ev.h
@@ -0,0 +1,67 @@
1#ifndef LLC_S_EV_H
2#define LLC_S_EV_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14
15#include <linux/skbuff.h>
16
17/* Defines SAP component events */
18/* Types of events (possible values in 'ev->type') */
19#define LLC_SAP_EV_TYPE_SIMPLE 1
20#define LLC_SAP_EV_TYPE_CONDITION 2
21#define LLC_SAP_EV_TYPE_PRIM 3
22#define LLC_SAP_EV_TYPE_PDU 4 /* command/response PDU */
23#define LLC_SAP_EV_TYPE_ACK_TMR 5
24#define LLC_SAP_EV_TYPE_RPT_STATUS 6
25
26#define LLC_SAP_EV_ACTIVATION_REQ 1
27#define LLC_SAP_EV_RX_UI 2
28#define LLC_SAP_EV_UNITDATA_REQ 3
29#define LLC_SAP_EV_XID_REQ 4
30#define LLC_SAP_EV_RX_XID_C 5
31#define LLC_SAP_EV_RX_XID_R 6
32#define LLC_SAP_EV_TEST_REQ 7
33#define LLC_SAP_EV_RX_TEST_C 8
34#define LLC_SAP_EV_RX_TEST_R 9
35#define LLC_SAP_EV_DEACTIVATION_REQ 10
36
37struct llc_sap_state_ev {
38 u8 prim;
39 u8 prim_type;
40 u8 type;
41 u8 reason;
42 u8 ind_cfm_flag;
43 struct llc_addr saddr;
44 struct llc_addr daddr;
45};
46
47static __inline__ struct llc_sap_state_ev *llc_sap_ev(struct sk_buff *skb)
48{
49 return (struct llc_sap_state_ev *)skb->cb;
50}
51
52struct llc_sap;
53
54typedef int (*llc_sap_ev_t)(struct llc_sap *sap, struct sk_buff *skb);
55
56extern int llc_sap_ev_activation_req(struct llc_sap *sap, struct sk_buff *skb);
57extern int llc_sap_ev_rx_ui(struct llc_sap *sap, struct sk_buff *skb);
58extern int llc_sap_ev_unitdata_req(struct llc_sap *sap, struct sk_buff *skb);
59extern int llc_sap_ev_xid_req(struct llc_sap *sap, struct sk_buff *skb);
60extern int llc_sap_ev_rx_xid_c(struct llc_sap *sap, struct sk_buff *skb);
61extern int llc_sap_ev_rx_xid_r(struct llc_sap *sap, struct sk_buff *skb);
62extern int llc_sap_ev_test_req(struct llc_sap *sap, struct sk_buff *skb);
63extern int llc_sap_ev_rx_test_c(struct llc_sap *sap, struct sk_buff *skb);
64extern int llc_sap_ev_rx_test_r(struct llc_sap *sap, struct sk_buff *skb);
65extern int llc_sap_ev_deactivation_req(struct llc_sap *sap,
66 struct sk_buff *skb);
67#endif /* LLC_S_EV_H */
diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
new file mode 100644
index 000000000000..567c681f1f3e
--- /dev/null
+++ b/include/net/llc_s_st.h
@@ -0,0 +1,32 @@
1#ifndef LLC_S_ST_H
2#define LLC_S_ST_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14
15#define LLC_NR_SAP_STATES 2 /* size of state table */
16
17/* structures and types */
18/* SAP state table structure */
19struct llc_sap_state_trans {
20 llc_sap_ev_t ev;
21 u8 next_state;
22 llc_sap_action_t *ev_actions;
23};
24
25struct llc_sap_state {
26 u8 curr_state;
27 struct llc_sap_state_trans **transitions;
28};
29
30/* only access to SAP state table */
31extern struct llc_sap_state llc_sap_state_table[LLC_NR_SAP_STATES];
32#endif /* LLC_S_ST_H */
diff --git a/include/net/llc_sap.h b/include/net/llc_sap.h
new file mode 100644
index 000000000000..353baaa627f3
--- /dev/null
+++ b/include/net/llc_sap.h
@@ -0,0 +1,29 @@
1#ifndef LLC_SAP_H
2#define LLC_SAP_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14struct llc_sap;
15struct sk_buff;
16
17extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb);
18extern void llc_save_primitive(struct sk_buff* skb, unsigned char prim);
19extern struct sk_buff *llc_alloc_frame(void);
20
21extern void llc_build_and_send_test_pkt(struct llc_sap *sap,
22 struct sk_buff *skb,
23 unsigned char *dmac,
24 unsigned char dsap);
25extern void llc_build_and_send_xid_pkt(struct llc_sap *sap,
26 struct sk_buff *skb,
27 unsigned char *dmac,
28 unsigned char dsap);
29#endif /* LLC_SAP_H */
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
new file mode 100644
index 000000000000..f85d6e4b7442
--- /dev/null
+++ b/include/net/ndisc.h
@@ -0,0 +1,135 @@
1#ifndef _NDISC_H
2#define _NDISC_H
3
4/*
5 * ICMP codes for neighbour discovery messages
6 */
7
8#define NDISC_ROUTER_SOLICITATION 133
9#define NDISC_ROUTER_ADVERTISEMENT 134
10#define NDISC_NEIGHBOUR_SOLICITATION 135
11#define NDISC_NEIGHBOUR_ADVERTISEMENT 136
12#define NDISC_REDIRECT 137
13
14/*
15 * ndisc options
16 */
17
18enum {
19 __ND_OPT_PREFIX_INFO_END = 0,
20 ND_OPT_SOURCE_LL_ADDR = 1, /* RFC2461 */
21 ND_OPT_TARGET_LL_ADDR = 2, /* RFC2461 */
22 ND_OPT_PREFIX_INFO = 3, /* RFC2461 */
23 ND_OPT_REDIRECT_HDR = 4, /* RFC2461 */
24 ND_OPT_MTU = 5, /* RFC2461 */
25 __ND_OPT_MAX
26};
27
28#define MAX_RTR_SOLICITATION_DELAY HZ
29
30#define ND_REACHABLE_TIME (30*HZ)
31#define ND_RETRANS_TIMER HZ
32
33#define ND_MIN_RANDOM_FACTOR (1/2)
34#define ND_MAX_RANDOM_FACTOR (3/2)
35
36#ifdef __KERNEL__
37
38#include <linux/skbuff.h>
39#include <linux/netdevice.h>
40#include <linux/icmpv6.h>
41#include <net/neighbour.h>
42#include <asm/atomic.h>
43
44extern struct neigh_table nd_tbl;
45
46struct nd_msg {
47 struct icmp6hdr icmph;
48 struct in6_addr target;
49 __u8 opt[0];
50};
51
52struct rs_msg {
53 struct icmp6hdr icmph;
54 __u8 opt[0];
55};
56
57struct ra_msg {
58 struct icmp6hdr icmph;
59 __u32 reachable_time;
60 __u32 retrans_timer;
61};
62
63struct nd_opt_hdr {
64 __u8 nd_opt_type;
65 __u8 nd_opt_len;
66} __attribute__((__packed__));
67
68
69extern int ndisc_init(struct net_proto_family *ops);
70
71extern void ndisc_cleanup(void);
72
73extern int ndisc_rcv(struct sk_buff *skb);
74
75extern void ndisc_send_ns(struct net_device *dev,
76 struct neighbour *neigh,
77 struct in6_addr *solicit,
78 struct in6_addr *daddr,
79 struct in6_addr *saddr);
80
81extern void ndisc_send_rs(struct net_device *dev,
82 struct in6_addr *saddr,
83 struct in6_addr *daddr);
84
85extern void ndisc_forwarding_on(void);
86extern void ndisc_forwarding_off(void);
87
88extern void ndisc_send_redirect(struct sk_buff *skb,
89 struct neighbour *neigh,
90 struct in6_addr *target);
91
92extern int ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir);
93
94
95struct rt6_info * dflt_rt_lookup(void);
96
97/*
98 * IGMP
99 */
100extern int igmp6_init(struct net_proto_family *ops);
101
102extern void igmp6_cleanup(void);
103
104extern int igmp6_event_query(struct sk_buff *skb);
105
106extern int igmp6_event_report(struct sk_buff *skb);
107
108extern void igmp6_cleanup(void);
109
110#ifdef CONFIG_SYSCTL
111extern int ndisc_ifinfo_sysctl_change(ctl_table *ctl,
112 int write,
113 struct file * filp,
114 void __user *buffer,
115 size_t *lenp,
116 loff_t *ppos);
117#endif
118
119extern void inet6_ifinfo_notify(int event,
120 struct inet6_dev *idev);
121
122static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, struct in6_addr *addr)
123{
124
125 if (dev)
126 return __neigh_lookup(&nd_tbl, addr, dev, 1);
127
128 return NULL;
129}
130
131
132#endif /* __KERNEL__ */
133
134
135#endif
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
new file mode 100644
index 000000000000..4f33bbc21e7f
--- /dev/null
+++ b/include/net/neighbour.h
@@ -0,0 +1,370 @@
1#ifndef _NET_NEIGHBOUR_H
2#define _NET_NEIGHBOUR_H
3
4/*
5 * Generic neighbour manipulation
6 *
7 * Authors:
8 * Pedro Roque <roque@di.fc.ul.pt>
9 * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
10 *
11 * Changes:
12 *
13 * Harald Welte: <laforge@gnumonks.org>
14 * - Add neighbour cache statistics like rtstat
15 */
16
17/* The following flags & states are exported to user space,
18 so that they should be moved to include/linux/ directory.
19 */
20
21/*
22 * Neighbor Cache Entry Flags
23 */
24
25#define NTF_PROXY 0x08 /* == ATF_PUBL */
26#define NTF_ROUTER 0x80
27
28/*
29 * Neighbor Cache Entry States.
30 */
31
32#define NUD_INCOMPLETE 0x01
33#define NUD_REACHABLE 0x02
34#define NUD_STALE 0x04
35#define NUD_DELAY 0x08
36#define NUD_PROBE 0x10
37#define NUD_FAILED 0x20
38
39/* Dummy states */
40#define NUD_NOARP 0x40
41#define NUD_PERMANENT 0x80
42#define NUD_NONE 0x00
43
44/* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
45 and make no address resolution or NUD.
46 NUD_PERMANENT is also cannot be deleted by garbage collectors.
47 */
48
49#ifdef __KERNEL__
50
51#include <asm/atomic.h>
52#include <linux/skbuff.h>
53#include <linux/netdevice.h>
54#include <linux/rcupdate.h>
55#include <linux/seq_file.h>
56
57#include <linux/err.h>
58#include <linux/sysctl.h>
59
60#define NUD_IN_TIMER (NUD_INCOMPLETE|NUD_REACHABLE|NUD_DELAY|NUD_PROBE)
61#define NUD_VALID (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE|NUD_PROBE|NUD_STALE|NUD_DELAY)
62#define NUD_CONNECTED (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE)
63
64struct neighbour;
65
66struct neigh_parms
67{
68 struct neigh_parms *next;
69 int (*neigh_setup)(struct neighbour *);
70 struct neigh_table *tbl;
71 int entries;
72 void *priv;
73
74 void *sysctl_table;
75
76 int dead;
77 atomic_t refcnt;
78 struct rcu_head rcu_head;
79
80 int base_reachable_time;
81 int retrans_time;
82 int gc_staletime;
83 int reachable_time;
84 int delay_probe_time;
85
86 int queue_len;
87 int ucast_probes;
88 int app_probes;
89 int mcast_probes;
90 int anycast_delay;
91 int proxy_delay;
92 int proxy_qlen;
93 int locktime;
94};
95
96struct neigh_statistics
97{
98 unsigned long allocs; /* number of allocated neighs */
99 unsigned long destroys; /* number of destroyed neighs */
100 unsigned long hash_grows; /* number of hash resizes */
101
102 unsigned long res_failed; /* nomber of failed resolutions */
103
104 unsigned long lookups; /* number of lookups */
105 unsigned long hits; /* number of hits (among lookups) */
106
107 unsigned long rcv_probes_mcast; /* number of received mcast ipv6 */
108 unsigned long rcv_probes_ucast; /* number of received ucast ipv6 */
109
110 unsigned long periodic_gc_runs; /* number of periodic GC runs */
111 unsigned long forced_gc_runs; /* number of forced GC runs */
112};
113
114#define NEIGH_CACHE_STAT_INC(tbl, field) \
115 do { \
116 preempt_disable(); \
117 (per_cpu_ptr((tbl)->stats, smp_processor_id())->field)++; \
118 preempt_enable(); \
119 } while (0)
120
121struct neighbour
122{
123 struct neighbour *next;
124 struct neigh_table *tbl;
125 struct neigh_parms *parms;
126 struct net_device *dev;
127 unsigned long used;
128 unsigned long confirmed;
129 unsigned long updated;
130 __u8 flags;
131 __u8 nud_state;
132 __u8 type;
133 __u8 dead;
134 atomic_t probes;
135 rwlock_t lock;
136 unsigned char ha[(MAX_ADDR_LEN+sizeof(unsigned long)-1)&~(sizeof(unsigned long)-1)];
137 struct hh_cache *hh;
138 atomic_t refcnt;
139 int (*output)(struct sk_buff *skb);
140 struct sk_buff_head arp_queue;
141 struct timer_list timer;
142 struct neigh_ops *ops;
143 u8 primary_key[0];
144};
145
146struct neigh_ops
147{
148 int family;
149 void (*destructor)(struct neighbour *);
150 void (*solicit)(struct neighbour *, struct sk_buff*);
151 void (*error_report)(struct neighbour *, struct sk_buff*);
152 int (*output)(struct sk_buff*);
153 int (*connected_output)(struct sk_buff*);
154 int (*hh_output)(struct sk_buff*);
155 int (*queue_xmit)(struct sk_buff*);
156};
157
158struct pneigh_entry
159{
160 struct pneigh_entry *next;
161 struct net_device *dev;
162 u8 key[0];
163};
164
165/*
166 * neighbour table manipulation
167 */
168
169
170struct neigh_table
171{
172 struct neigh_table *next;
173 int family;
174 int entry_size;
175 int key_len;
176 __u32 (*hash)(const void *pkey, const struct net_device *);
177 int (*constructor)(struct neighbour *);
178 int (*pconstructor)(struct pneigh_entry *);
179 void (*pdestructor)(struct pneigh_entry *);
180 void (*proxy_redo)(struct sk_buff *skb);
181 char *id;
182 struct neigh_parms parms;
183 /* HACK. gc_* shoul follow parms without a gap! */
184 int gc_interval;
185 int gc_thresh1;
186 int gc_thresh2;
187 int gc_thresh3;
188 unsigned long last_flush;
189 struct timer_list gc_timer;
190 struct timer_list proxy_timer;
191 struct sk_buff_head proxy_queue;
192 atomic_t entries;
193 rwlock_t lock;
194 unsigned long last_rand;
195 struct neigh_parms *parms_list;
196 kmem_cache_t *kmem_cachep;
197 struct neigh_statistics *stats;
198 struct neighbour **hash_buckets;
199 unsigned int hash_mask;
200 __u32 hash_rnd;
201 unsigned int hash_chain_gc;
202 struct pneigh_entry **phash_buckets;
203#ifdef CONFIG_PROC_FS
204 struct proc_dir_entry *pde;
205#endif
206};
207
208/* flags for neigh_update() */
209#define NEIGH_UPDATE_F_OVERRIDE 0x00000001
210#define NEIGH_UPDATE_F_WEAK_OVERRIDE 0x00000002
211#define NEIGH_UPDATE_F_OVERRIDE_ISROUTER 0x00000004
212#define NEIGH_UPDATE_F_ISROUTER 0x40000000
213#define NEIGH_UPDATE_F_ADMIN 0x80000000
214
215extern void neigh_table_init(struct neigh_table *tbl);
216extern int neigh_table_clear(struct neigh_table *tbl);
217extern struct neighbour * neigh_lookup(struct neigh_table *tbl,
218 const void *pkey,
219 struct net_device *dev);
220extern struct neighbour * neigh_lookup_nodev(struct neigh_table *tbl,
221 const void *pkey);
222extern struct neighbour * neigh_create(struct neigh_table *tbl,
223 const void *pkey,
224 struct net_device *dev);
225extern void neigh_destroy(struct neighbour *neigh);
226extern int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb);
227extern int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
228 u32 flags);
229extern void neigh_changeaddr(struct neigh_table *tbl, struct net_device *dev);
230extern int neigh_ifdown(struct neigh_table *tbl, struct net_device *dev);
231extern int neigh_resolve_output(struct sk_buff *skb);
232extern int neigh_connected_output(struct sk_buff *skb);
233extern int neigh_compat_output(struct sk_buff *skb);
234extern struct neighbour *neigh_event_ns(struct neigh_table *tbl,
235 u8 *lladdr, void *saddr,
236 struct net_device *dev);
237
238extern struct neigh_parms *neigh_parms_alloc(struct net_device *dev, struct neigh_table *tbl);
239extern void neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms);
240extern void neigh_parms_destroy(struct neigh_parms *parms);
241extern unsigned long neigh_rand_reach_time(unsigned long base);
242
243extern void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
244 struct sk_buff *skb);
245extern struct pneigh_entry *pneigh_lookup(struct neigh_table *tbl, const void *key, struct net_device *dev, int creat);
246extern int pneigh_delete(struct neigh_table *tbl, const void *key, struct net_device *dev);
247
248struct netlink_callback;
249struct nlmsghdr;
250extern int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb);
251extern int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
252extern int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
253extern void neigh_app_ns(struct neighbour *n);
254
255extern void neigh_for_each(struct neigh_table *tbl, void (*cb)(struct neighbour *, void *), void *cookie);
256extern void __neigh_for_each_release(struct neigh_table *tbl, int (*cb)(struct neighbour *));
257extern void pneigh_for_each(struct neigh_table *tbl, void (*cb)(struct pneigh_entry *));
258
259struct neigh_seq_state {
260 struct neigh_table *tbl;
261 void *(*neigh_sub_iter)(struct neigh_seq_state *state,
262 struct neighbour *n, loff_t *pos);
263 unsigned int bucket;
264 unsigned int flags;
265#define NEIGH_SEQ_NEIGH_ONLY 0x00000001
266#define NEIGH_SEQ_IS_PNEIGH 0x00000002
267#define NEIGH_SEQ_SKIP_NOARP 0x00000004
268};
269extern void *neigh_seq_start(struct seq_file *, loff_t *, struct neigh_table *, unsigned int);
270extern void *neigh_seq_next(struct seq_file *, void *, loff_t *);
271extern void neigh_seq_stop(struct seq_file *, void *);
272
273extern int neigh_sysctl_register(struct net_device *dev,
274 struct neigh_parms *p,
275 int p_id, int pdev_id,
276 char *p_name,
277 proc_handler *proc_handler,
278 ctl_handler *strategy);
279extern void neigh_sysctl_unregister(struct neigh_parms *p);
280
281static inline void __neigh_parms_put(struct neigh_parms *parms)
282{
283 atomic_dec(&parms->refcnt);
284}
285
286static inline void neigh_parms_put(struct neigh_parms *parms)
287{
288 if (atomic_dec_and_test(&parms->refcnt))
289 neigh_parms_destroy(parms);
290}
291
292static inline struct neigh_parms *neigh_parms_clone(struct neigh_parms *parms)
293{
294 atomic_inc(&parms->refcnt);
295 return parms;
296}
297
298/*
299 * Neighbour references
300 */
301
302static inline void neigh_release(struct neighbour *neigh)
303{
304 if (atomic_dec_and_test(&neigh->refcnt))
305 neigh_destroy(neigh);
306}
307
308static inline struct neighbour * neigh_clone(struct neighbour *neigh)
309{
310 if (neigh)
311 atomic_inc(&neigh->refcnt);
312 return neigh;
313}
314
315#define neigh_hold(n) atomic_inc(&(n)->refcnt)
316
317static inline void neigh_confirm(struct neighbour *neigh)
318{
319 if (neigh)
320 neigh->confirmed = jiffies;
321}
322
323static inline int neigh_is_connected(struct neighbour *neigh)
324{
325 return neigh->nud_state&NUD_CONNECTED;
326}
327
328static inline int neigh_is_valid(struct neighbour *neigh)
329{
330 return neigh->nud_state&NUD_VALID;
331}
332
333static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
334{
335 neigh->used = jiffies;
336 if (!(neigh->nud_state&(NUD_CONNECTED|NUD_DELAY|NUD_PROBE)))
337 return __neigh_event_send(neigh, skb);
338 return 0;
339}
340
341static inline struct neighbour *
342__neigh_lookup(struct neigh_table *tbl, const void *pkey, struct net_device *dev, int creat)
343{
344 struct neighbour *n = neigh_lookup(tbl, pkey, dev);
345
346 if (n || !creat)
347 return n;
348
349 n = neigh_create(tbl, pkey, dev);
350 return IS_ERR(n) ? NULL : n;
351}
352
353static inline struct neighbour *
354__neigh_lookup_errno(struct neigh_table *tbl, const void *pkey,
355 struct net_device *dev)
356{
357 struct neighbour *n = neigh_lookup(tbl, pkey, dev);
358
359 if (n)
360 return n;
361
362 return neigh_create(tbl, pkey, dev);
363}
364
365#define LOCALLY_ENQUEUED -2
366
367#endif
368#endif
369
370
diff --git a/include/net/netrom.h b/include/net/netrom.h
new file mode 100644
index 000000000000..45f2c7616d8b
--- /dev/null
+++ b/include/net/netrom.h
@@ -0,0 +1,242 @@
1/*
2 * Declarations of NET/ROM type objects.
3 *
4 * Jonathan Naylor G4KLX 9/4/95
5 */
6
7#ifndef _NETROM_H
8#define _NETROM_H
9#include <linux/netrom.h>
10#include <linux/list.h>
11#include <net/sock.h>
12
13#define NR_NETWORK_LEN 15
14#define NR_TRANSPORT_LEN 5
15
16#define NR_PROTO_IP 0x0C
17
18#define NR_PROTOEXT 0x00
19#define NR_CONNREQ 0x01
20#define NR_CONNACK 0x02
21#define NR_DISCREQ 0x03
22#define NR_DISCACK 0x04
23#define NR_INFO 0x05
24#define NR_INFOACK 0x06
25
26#define NR_CHOKE_FLAG 0x80
27#define NR_NAK_FLAG 0x40
28#define NR_MORE_FLAG 0x20
29
30/* Define Link State constants. */
31enum {
32 NR_STATE_0,
33 NR_STATE_1,
34 NR_STATE_2,
35 NR_STATE_3
36};
37
38#define NR_COND_ACK_PENDING 0x01
39#define NR_COND_REJECT 0x02
40#define NR_COND_PEER_RX_BUSY 0x04
41#define NR_COND_OWN_RX_BUSY 0x08
42
43#define NR_DEFAULT_T1 (120 * HZ) /* Outstanding frames - 120 seconds */
44#define NR_DEFAULT_T2 (5 * HZ) /* Response delay - 5 seconds */
45#define NR_DEFAULT_N2 3 /* Number of Retries - 3 */
46#define NR_DEFAULT_T4 (180 * HZ) /* Busy Delay - 180 seconds */
47#define NR_DEFAULT_IDLE (0 * 60 * HZ) /* No Activity Timeout - none */
48#define NR_DEFAULT_WINDOW 4 /* Default Window Size - 4 */
49#define NR_DEFAULT_OBS 6 /* Default Obsolescence Count - 6 */
50#define NR_DEFAULT_QUAL 10 /* Default Neighbour Quality - 10 */
51#define NR_DEFAULT_TTL 16 /* Default Time To Live - 16 */
52#define NR_DEFAULT_ROUTING 1 /* Is routing enabled ? */
53#define NR_DEFAULT_FAILS 2 /* Link fails until route fails */
54
55#define NR_MODULUS 256
56#define NR_MAX_WINDOW_SIZE 127 /* Maximum Window Allowable - 127 */
57#define NR_MAX_PACKET_SIZE 236 /* Maximum Packet Length - 236 */
58
59struct nr_sock {
60 struct sock sock;
61 ax25_address user_addr, source_addr, dest_addr;
62 struct net_device *device;
63 unsigned char my_index, my_id;
64 unsigned char your_index, your_id;
65 unsigned char state, condition, bpqext, window;
66 unsigned short vs, vr, va, vl;
67 unsigned char n2, n2count;
68 unsigned long t1, t2, t4, idle;
69 unsigned short fraglen;
70 struct timer_list t1timer;
71 struct timer_list t2timer;
72 struct timer_list t4timer;
73 struct timer_list idletimer;
74 struct sk_buff_head ack_queue;
75 struct sk_buff_head reseq_queue;
76 struct sk_buff_head frag_queue;
77};
78
79#define nr_sk(sk) ((struct nr_sock *)(sk))
80
81struct nr_neigh {
82 struct hlist_node neigh_node;
83 ax25_address callsign;
84 ax25_digi *digipeat;
85 ax25_cb *ax25;
86 struct net_device *dev;
87 unsigned char quality;
88 unsigned char locked;
89 unsigned short count;
90 unsigned int number;
91 unsigned char failed;
92 atomic_t refcount;
93};
94
95struct nr_route {
96 unsigned char quality;
97 unsigned char obs_count;
98 struct nr_neigh *neighbour;
99};
100
101struct nr_node {
102 struct hlist_node node_node;
103 ax25_address callsign;
104 char mnemonic[7];
105 unsigned char which;
106 unsigned char count;
107 struct nr_route routes[3];
108 atomic_t refcount;
109 spinlock_t node_lock;
110};
111
112/*********************************************************************
113 * nr_node & nr_neigh lists, refcounting and locking
114 *********************************************************************/
115
116#define nr_node_hold(__nr_node) \
117 atomic_inc(&((__nr_node)->refcount))
118
119static __inline__ void nr_node_put(struct nr_node *nr_node)
120{
121 if (atomic_dec_and_test(&nr_node->refcount)) {
122 kfree(nr_node);
123 }
124}
125
126#define nr_neigh_hold(__nr_neigh) \
127 atomic_inc(&((__nr_neigh)->refcount))
128
129static __inline__ void nr_neigh_put(struct nr_neigh *nr_neigh)
130{
131 if (atomic_dec_and_test(&nr_neigh->refcount)) {
132 if (nr_neigh->digipeat != NULL)
133 kfree(nr_neigh->digipeat);
134 kfree(nr_neigh);
135 }
136}
137
138/* nr_node_lock and nr_node_unlock also hold/put the node's refcounter.
139 */
140static __inline__ void nr_node_lock(struct nr_node *nr_node)
141{
142 nr_node_hold(nr_node);
143 spin_lock_bh(&nr_node->node_lock);
144}
145
146static __inline__ void nr_node_unlock(struct nr_node *nr_node)
147{
148 spin_unlock_bh(&nr_node->node_lock);
149 nr_node_put(nr_node);
150}
151
152#define nr_neigh_for_each(__nr_neigh, node, list) \
153 hlist_for_each_entry(__nr_neigh, node, list, neigh_node)
154
155#define nr_neigh_for_each_safe(__nr_neigh, node, node2, list) \
156 hlist_for_each_entry_safe(__nr_neigh, node, node2, list, neigh_node)
157
158#define nr_node_for_each(__nr_node, node, list) \
159 hlist_for_each_entry(__nr_node, node, list, node_node)
160
161#define nr_node_for_each_safe(__nr_node, node, node2, list) \
162 hlist_for_each_entry_safe(__nr_node, node, node2, list, node_node)
163
164
165/*********************************************************************/
166
167/* af_netrom.c */
168extern int sysctl_netrom_default_path_quality;
169extern int sysctl_netrom_obsolescence_count_initialiser;
170extern int sysctl_netrom_network_ttl_initialiser;
171extern int sysctl_netrom_transport_timeout;
172extern int sysctl_netrom_transport_maximum_tries;
173extern int sysctl_netrom_transport_acknowledge_delay;
174extern int sysctl_netrom_transport_busy_delay;
175extern int sysctl_netrom_transport_requested_window_size;
176extern int sysctl_netrom_transport_no_activity_timeout;
177extern int sysctl_netrom_routing_control;
178extern int sysctl_netrom_link_fails_count;
179extern int nr_rx_frame(struct sk_buff *, struct net_device *);
180extern void nr_destroy_socket(struct sock *);
181
182/* nr_dev.c */
183extern int nr_rx_ip(struct sk_buff *, struct net_device *);
184extern void nr_setup(struct net_device *);
185
186/* nr_in.c */
187extern int nr_process_rx_frame(struct sock *, struct sk_buff *);
188
189/* nr_loopback.c */
190extern void nr_loopback_init(void);
191extern void nr_loopback_clear(void);
192extern int nr_loopback_queue(struct sk_buff *);
193
194/* nr_out.c */
195extern void nr_output(struct sock *, struct sk_buff *);
196extern void nr_send_nak_frame(struct sock *);
197extern void nr_kick(struct sock *);
198extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
199extern void nr_establish_data_link(struct sock *);
200extern void nr_enquiry_response(struct sock *);
201extern void nr_check_iframes_acked(struct sock *, unsigned short);
202
203/* nr_route.c */
204extern void nr_rt_device_down(struct net_device *);
205extern struct net_device *nr_dev_first(void);
206extern struct net_device *nr_dev_get(ax25_address *);
207extern int nr_rt_ioctl(unsigned int, void __user *);
208extern void nr_link_failed(ax25_cb *, int);
209extern int nr_route_frame(struct sk_buff *, ax25_cb *);
210extern struct file_operations nr_nodes_fops;
211extern struct file_operations nr_neigh_fops;
212extern void nr_rt_free(void);
213
214/* nr_subr.c */
215extern void nr_clear_queues(struct sock *);
216extern void nr_frames_acked(struct sock *, unsigned short);
217extern void nr_requeue_frames(struct sock *);
218extern int nr_validate_nr(struct sock *, unsigned short);
219extern int nr_in_rx_window(struct sock *, unsigned short);
220extern void nr_write_internal(struct sock *, int);
221extern void nr_transmit_refusal(struct sk_buff *, int);
222extern void nr_disconnect(struct sock *, int);
223
224/* nr_timer.c */
225extern void nr_init_timers(struct sock *sk);
226extern void nr_start_heartbeat(struct sock *);
227extern void nr_start_t1timer(struct sock *);
228extern void nr_start_t2timer(struct sock *);
229extern void nr_start_t4timer(struct sock *);
230extern void nr_start_idletimer(struct sock *);
231extern void nr_stop_heartbeat(struct sock *);
232extern void nr_stop_t1timer(struct sock *);
233extern void nr_stop_t2timer(struct sock *);
234extern void nr_stop_t4timer(struct sock *);
235extern void nr_stop_idletimer(struct sock *);
236extern int nr_t1timer_running(struct sock *);
237
238/* sysctl_net_netrom.c */
239extern void nr_register_sysctl(void);
240extern void nr_unregister_sysctl(void);
241
242#endif
diff --git a/include/net/p8022.h b/include/net/p8022.h
new file mode 100644
index 000000000000..3c99a86c3581
--- /dev/null
+++ b/include/net/p8022.h
@@ -0,0 +1,10 @@
1#ifndef _NET_P8022_H
2#define _NET_P8022_H
3extern struct datalink_proto *
4 register_8022_client(unsigned char type,
5 int (*func)(struct sk_buff *skb,
6 struct net_device *dev,
7 struct packet_type *pt));
8extern void unregister_8022_client(struct datalink_proto *proto);
9
10#endif
diff --git a/include/net/pkt_act.h b/include/net/pkt_act.h
new file mode 100644
index 000000000000..bd08964b72c0
--- /dev/null
+++ b/include/net/pkt_act.h
@@ -0,0 +1,275 @@
1#ifndef __NET_PKT_ACT_H
2#define __NET_PKT_ACT_H
3
4#include <asm/uaccess.h>
5#include <asm/system.h>
6#include <linux/bitops.h>
7#include <linux/config.h>
8#include <linux/types.h>
9#include <linux/kernel.h>
10#include <linux/sched.h>
11#include <linux/string.h>
12#include <linux/mm.h>
13#include <linux/socket.h>
14#include <linux/sockios.h>
15#include <linux/in.h>
16#include <linux/errno.h>
17#include <linux/interrupt.h>
18#include <linux/netdevice.h>
19#include <linux/skbuff.h>
20#include <linux/rtnetlink.h>
21#include <linux/module.h>
22#include <linux/init.h>
23#include <linux/proc_fs.h>
24#include <net/sock.h>
25#include <net/pkt_sched.h>
26
27#define tca_st(val) (struct tcf_##val *)
28#define PRIV(a,name) ( tca_st(name) (a)->priv)
29
30#if 0 /* control */
31#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
32#else
33#define DPRINTK(format,args...)
34#endif
35
36#if 0 /* data */
37#define D2PRINTK(format,args...) printk(KERN_DEBUG format,##args)
38#else
39#define D2PRINTK(format,args...)
40#endif
41
42static __inline__ unsigned
43tcf_hash(u32 index)
44{
45 return index & MY_TAB_MASK;
46}
47
48/* probably move this from being inline
49 * and put into act_generic
50*/
51static inline void
52tcf_hash_destroy(struct tcf_st *p)
53{
54 unsigned h = tcf_hash(p->index);
55 struct tcf_st **p1p;
56
57 for (p1p = &tcf_ht[h]; *p1p; p1p = &(*p1p)->next) {
58 if (*p1p == p) {
59 write_lock_bh(&tcf_t_lock);
60 *p1p = p->next;
61 write_unlock_bh(&tcf_t_lock);
62#ifdef CONFIG_NET_ESTIMATOR
63 gen_kill_estimator(&p->bstats, &p->rate_est);
64#endif
65 kfree(p);
66 return;
67 }
68 }
69 BUG_TRAP(0);
70}
71
72static inline int
73tcf_hash_release(struct tcf_st *p, int bind )
74{
75 int ret = 0;
76 if (p) {
77 if (bind) {
78 p->bindcnt--;
79 }
80 p->refcnt--;
81 if(p->bindcnt <=0 && p->refcnt <= 0) {
82 tcf_hash_destroy(p);
83 ret = 1;
84 }
85 }
86 return ret;
87}
88
89static __inline__ int
90tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb,
91 struct tc_action *a)
92{
93 struct tcf_st *p;
94 int err =0, index = -1,i= 0, s_i = 0, n_i = 0;
95 struct rtattr *r ;
96
97 read_lock(&tcf_t_lock);
98
99 s_i = cb->args[0];
100
101 for (i = 0; i < MY_TAB_SIZE; i++) {
102 p = tcf_ht[tcf_hash(i)];
103
104 for (; p; p = p->next) {
105 index++;
106 if (index < s_i)
107 continue;
108 a->priv = p;
109 a->order = n_i;
110 r = (struct rtattr*) skb->tail;
111 RTA_PUT(skb, a->order, 0, NULL);
112 err = tcf_action_dump_1(skb, a, 0, 0);
113 if (0 > err) {
114 index--;
115 skb_trim(skb, (u8*)r - skb->data);
116 goto done;
117 }
118 r->rta_len = skb->tail - (u8*)r;
119 n_i++;
120 if (n_i >= TCA_ACT_MAX_PRIO) {
121 goto done;
122 }
123 }
124 }
125done:
126 read_unlock(&tcf_t_lock);
127 if (n_i)
128 cb->args[0] += n_i;
129 return n_i;
130
131rtattr_failure:
132 skb_trim(skb, (u8*)r - skb->data);
133 goto done;
134}
135
136static __inline__ int
137tcf_del_walker(struct sk_buff *skb, struct tc_action *a)
138{
139 struct tcf_st *p, *s_p;
140 struct rtattr *r ;
141 int i= 0, n_i = 0;
142
143 r = (struct rtattr*) skb->tail;
144 RTA_PUT(skb, a->order, 0, NULL);
145 RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);
146 for (i = 0; i < MY_TAB_SIZE; i++) {
147 p = tcf_ht[tcf_hash(i)];
148
149 while (p != NULL) {
150 s_p = p->next;
151 if (ACT_P_DELETED == tcf_hash_release(p, 0)) {
152 module_put(a->ops->owner);
153 }
154 n_i++;
155 p = s_p;
156 }
157 }
158 RTA_PUT(skb, TCA_FCNT, 4, &n_i);
159 r->rta_len = skb->tail - (u8*)r;
160
161 return n_i;
162rtattr_failure:
163 skb_trim(skb, (u8*)r - skb->data);
164 return -EINVAL;
165}
166
167static __inline__ int
168tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, int type,
169 struct tc_action *a)
170{
171 if (type == RTM_DELACTION) {
172 return tcf_del_walker(skb,a);
173 } else if (type == RTM_GETACTION) {
174 return tcf_dump_walker(skb,cb,a);
175 } else {
176 printk("tcf_generic_walker: unknown action %d\n",type);
177 return -EINVAL;
178 }
179}
180
181static __inline__ struct tcf_st *
182tcf_hash_lookup(u32 index)
183{
184 struct tcf_st *p;
185
186 read_lock(&tcf_t_lock);
187 for (p = tcf_ht[tcf_hash(index)]; p; p = p->next) {
188 if (p->index == index)
189 break;
190 }
191 read_unlock(&tcf_t_lock);
192 return p;
193}
194
195static __inline__ u32
196tcf_hash_new_index(void)
197{
198 do {
199 if (++idx_gen == 0)
200 idx_gen = 1;
201 } while (tcf_hash_lookup(idx_gen));
202
203 return idx_gen;
204}
205
206
207static inline int
208tcf_hash_search(struct tc_action *a, u32 index)
209{
210 struct tcf_st *p = tcf_hash_lookup(index);
211
212 if (p != NULL) {
213 a->priv = p;
214 return 1;
215 }
216 return 0;
217}
218
219#ifdef CONFIG_NET_ACT_INIT
220static inline struct tcf_st *
221tcf_hash_check(u32 index, struct tc_action *a, int ovr, int bind)
222{
223 struct tcf_st *p = NULL;
224 if (index && (p = tcf_hash_lookup(index)) != NULL) {
225 if (bind) {
226 p->bindcnt++;
227 p->refcnt++;
228 }
229 a->priv = p;
230 }
231 return p;
232}
233
234static inline struct tcf_st *
235tcf_hash_create(u32 index, struct rtattr *est, struct tc_action *a, int size, int ovr, int bind)
236{
237 struct tcf_st *p = NULL;
238
239 p = kmalloc(size, GFP_KERNEL);
240 if (p == NULL)
241 return p;
242
243 memset(p, 0, size);
244 p->refcnt = 1;
245
246 if (bind) {
247 p->bindcnt = 1;
248 }
249
250 spin_lock_init(&p->lock);
251 p->stats_lock = &p->lock;
252 p->index = index ? : tcf_hash_new_index();
253 p->tm.install = jiffies;
254 p->tm.lastuse = jiffies;
255#ifdef CONFIG_NET_ESTIMATOR
256 if (est)
257 gen_new_estimator(&p->bstats, &p->rate_est, p->stats_lock, est);
258#endif
259 a->priv = (void *) p;
260 return p;
261}
262
263static inline void tcf_hash_insert(struct tcf_st *p)
264{
265 unsigned h = tcf_hash(p->index);
266
267 write_lock_bh(&tcf_t_lock);
268 p->next = tcf_ht[h];
269 tcf_ht[h] = p;
270 write_unlock_bh(&tcf_t_lock);
271}
272
273#endif
274
275#endif
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
new file mode 100644
index 000000000000..4abda6aec05a
--- /dev/null
+++ b/include/net/pkt_cls.h
@@ -0,0 +1,366 @@
1#ifndef __NET_PKT_CLS_H
2#define __NET_PKT_CLS_H
3
4#include <linux/pkt_cls.h>
5#include <net/sch_generic.h>
6#include <net/act_api.h>
7
8/* Basic packet classifier frontend definitions. */
9
10struct tcf_walker
11{
12 int stop;
13 int skip;
14 int count;
15 int (*fn)(struct tcf_proto *, unsigned long node, struct tcf_walker *);
16};
17
18extern int register_tcf_proto_ops(struct tcf_proto_ops *ops);
19extern int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
20
21static inline unsigned long
22__cls_set_class(unsigned long *clp, unsigned long cl)
23{
24 unsigned long old_cl;
25
26 old_cl = *clp;
27 *clp = cl;
28 return old_cl;
29}
30
31static inline unsigned long
32cls_set_class(struct tcf_proto *tp, unsigned long *clp,
33 unsigned long cl)
34{
35 unsigned long old_cl;
36
37 tcf_tree_lock(tp);
38 old_cl = __cls_set_class(clp, cl);
39 tcf_tree_unlock(tp);
40
41 return old_cl;
42}
43
44static inline void
45tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base)
46{
47 unsigned long cl;
48
49 cl = tp->q->ops->cl_ops->bind_tcf(tp->q, base, r->classid);
50 cl = cls_set_class(tp, &r->class, cl);
51 if (cl)
52 tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
53}
54
55static inline void
56tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r)
57{
58 unsigned long cl;
59
60 if ((cl = __cls_set_class(&r->class, 0)) != 0)
61 tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
62}
63
64struct tcf_exts
65{
66#ifdef CONFIG_NET_CLS_ACT
67 struct tc_action *action;
68#elif defined CONFIG_NET_CLS_POLICE
69 struct tcf_police *police;
70#endif
71};
72
73/* Map to export classifier specific extension TLV types to the
74 * generic extensions API. Unsupported extensions must be set to 0.
75 */
76struct tcf_ext_map
77{
78 int action;
79 int police;
80};
81
82/**
83 * tcf_exts_is_predicative - check if a predicative extension is present
84 * @exts: tc filter extensions handle
85 *
86 * Returns 1 if a predicative extension is present, i.e. an extension which
87 * might cause further actions and thus overrule the regular tcf_result.
88 */
89static inline int
90tcf_exts_is_predicative(struct tcf_exts *exts)
91{
92#ifdef CONFIG_NET_CLS_ACT
93 return !!exts->action;
94#elif defined CONFIG_NET_CLS_POLICE
95 return !!exts->police;
96#else
97 return 0;
98#endif
99}
100
101/**
102 * tcf_exts_is_available - check if at least one extension is present
103 * @exts: tc filter extensions handle
104 *
105 * Returns 1 if at least one extension is present.
106 */
107static inline int
108tcf_exts_is_available(struct tcf_exts *exts)
109{
110 /* All non-predicative extensions must be added here. */
111 return tcf_exts_is_predicative(exts);
112}
113
114/**
115 * tcf_exts_exec - execute tc filter extensions
116 * @skb: socket buffer
117 * @exts: tc filter extensions handle
118 * @res: desired result
119 *
120 * Executes all configured extensions. Returns 0 on a normal execution,
121 * a negative number if the filter must be considered unmatched or
122 * a positive action code (TC_ACT_*) which must be returned to the
123 * underlying layer.
124 */
125static inline int
126tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
127 struct tcf_result *res)
128{
129#ifdef CONFIG_NET_CLS_ACT
130 if (exts->action)
131 return tcf_action_exec(skb, exts->action, res);
132#elif defined CONFIG_NET_CLS_POLICE
133 if (exts->police)
134 return tcf_police(skb, exts->police);
135#endif
136
137 return 0;
138}
139
140extern int tcf_exts_validate(struct tcf_proto *tp, struct rtattr **tb,
141 struct rtattr *rate_tlv, struct tcf_exts *exts,
142 struct tcf_ext_map *map);
143extern void tcf_exts_destroy(struct tcf_proto *tp, struct tcf_exts *exts);
144extern void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst,
145 struct tcf_exts *src);
146extern int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts,
147 struct tcf_ext_map *map);
148extern int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts,
149 struct tcf_ext_map *map);
150
151/**
152 * struct tcf_pkt_info - packet information
153 */
154struct tcf_pkt_info
155{
156 unsigned char * ptr;
157 int nexthdr;
158};
159
160#ifdef CONFIG_NET_EMATCH
161
162struct tcf_ematch_ops;
163
164/**
165 * struct tcf_ematch - extended match (ematch)
166 *
167 * @matchid: identifier to allow userspace to reidentify a match
168 * @flags: flags specifying attributes and the relation to other matches
169 * @ops: the operations lookup table of the corresponding ematch module
170 * @datalen: length of the ematch specific configuration data
171 * @data: ematch specific data
172 */
173struct tcf_ematch
174{
175 struct tcf_ematch_ops * ops;
176 unsigned long data;
177 unsigned int datalen;
178 u16 matchid;
179 u16 flags;
180};
181
182static inline int tcf_em_is_container(struct tcf_ematch *em)
183{
184 return !em->ops;
185}
186
187static inline int tcf_em_is_simple(struct tcf_ematch *em)
188{
189 return em->flags & TCF_EM_SIMPLE;
190}
191
192static inline int tcf_em_is_inverted(struct tcf_ematch *em)
193{
194 return em->flags & TCF_EM_INVERT;
195}
196
197static inline int tcf_em_last_match(struct tcf_ematch *em)
198{
199 return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END;
200}
201
202static inline int tcf_em_early_end(struct tcf_ematch *em, int result)
203{
204 if (tcf_em_last_match(em))
205 return 1;
206
207 if (result == 0 && em->flags & TCF_EM_REL_AND)
208 return 1;
209
210 if (result != 0 && em->flags & TCF_EM_REL_OR)
211 return 1;
212
213 return 0;
214}
215
216/**
217 * struct tcf_ematch_tree - ematch tree handle
218 *
219 * @hdr: ematch tree header supplied by userspace
220 * @matches: array of ematches
221 */
222struct tcf_ematch_tree
223{
224 struct tcf_ematch_tree_hdr hdr;
225 struct tcf_ematch * matches;
226
227};
228
229/**
230 * struct tcf_ematch_ops - ematch module operations
231 *
232 * @kind: identifier (kind) of this ematch module
233 * @datalen: length of expected configuration data (optional)
234 * @change: called during validation (optional)
235 * @match: called during ematch tree evaluation, must return 1/0
236 * @destroy: called during destroyage (optional)
237 * @dump: called during dumping process (optional)
238 * @owner: owner, must be set to THIS_MODULE
239 * @link: link to previous/next ematch module (internal use)
240 */
241struct tcf_ematch_ops
242{
243 int kind;
244 int datalen;
245 int (*change)(struct tcf_proto *, void *,
246 int, struct tcf_ematch *);
247 int (*match)(struct sk_buff *, struct tcf_ematch *,
248 struct tcf_pkt_info *);
249 void (*destroy)(struct tcf_proto *,
250 struct tcf_ematch *);
251 int (*dump)(struct sk_buff *, struct tcf_ematch *);
252 struct module *owner;
253 struct list_head link;
254};
255
256extern int tcf_em_register(struct tcf_ematch_ops *);
257extern int tcf_em_unregister(struct tcf_ematch_ops *);
258extern int tcf_em_tree_validate(struct tcf_proto *, struct rtattr *,
259 struct tcf_ematch_tree *);
260extern void tcf_em_tree_destroy(struct tcf_proto *, struct tcf_ematch_tree *);
261extern int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int);
262extern int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *,
263 struct tcf_pkt_info *);
264
265/**
266 * tcf_em_tree_change - replace ematch tree of a running classifier
267 *
268 * @tp: classifier kind handle
269 * @dst: destination ematch tree variable
270 * @src: source ematch tree (temporary tree from tcf_em_tree_validate)
271 *
272 * This functions replaces the ematch tree in @dst with the ematch
273 * tree in @src. The classifier in charge of the ematch tree may be
274 * running.
275 */
276static inline void tcf_em_tree_change(struct tcf_proto *tp,
277 struct tcf_ematch_tree *dst,
278 struct tcf_ematch_tree *src)
279{
280 tcf_tree_lock(tp);
281 memcpy(dst, src, sizeof(*dst));
282 tcf_tree_unlock(tp);
283}
284
285/**
286 * tcf_em_tree_match - evaulate an ematch tree
287 *
288 * @skb: socket buffer of the packet in question
289 * @tree: ematch tree to be used for evaluation
290 * @info: packet information examined by classifier
291 *
292 * This function matches @skb against the ematch tree in @tree by going
293 * through all ematches respecting their logic relations returning
294 * as soon as the result is obvious.
295 *
296 * Returns 1 if the ematch tree as-one matches, no ematches are configured
297 * or ematch is not enabled in the kernel, otherwise 0 is returned.
298 */
299static inline int tcf_em_tree_match(struct sk_buff *skb,
300 struct tcf_ematch_tree *tree,
301 struct tcf_pkt_info *info)
302{
303 if (tree->hdr.nmatches)
304 return __tcf_em_tree_match(skb, tree, info);
305 else
306 return 1;
307}
308
309#else /* CONFIG_NET_EMATCH */
310
311struct tcf_ematch_tree
312{
313};
314
315#define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0)
316#define tcf_em_tree_destroy(tp, t) do { (void)(t); } while(0)
317#define tcf_em_tree_dump(skb, t, tlv) (0)
318#define tcf_em_tree_change(tp, dst, src) do { } while(0)
319#define tcf_em_tree_match(skb, t, info) ((void)(info), 1)
320
321#endif /* CONFIG_NET_EMATCH */
322
323static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer)
324{
325 switch (layer) {
326 case TCF_LAYER_LINK:
327 return skb->data;
328 case TCF_LAYER_NETWORK:
329 return skb->nh.raw;
330 case TCF_LAYER_TRANSPORT:
331 return skb->h.raw;
332 }
333
334 return NULL;
335}
336
337static inline int tcf_valid_offset(struct sk_buff *skb, unsigned char *ptr,
338 int len)
339{
340 return unlikely((ptr + len) < skb->tail && ptr > skb->head);
341}
342
343#ifdef CONFIG_NET_CLS_IND
344static inline int
345tcf_change_indev(struct tcf_proto *tp, char *indev, struct rtattr *indev_tlv)
346{
347 if (rtattr_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ)
348 return -EINVAL;
349 return 0;
350}
351
352static inline int
353tcf_match_indev(struct sk_buff *skb, char *indev)
354{
355 if (0 != indev[0]) {
356 if (NULL == skb->input_dev)
357 return 0;
358 else if (0 != strcmp(indev, skb->input_dev->name))
359 return 0;
360 }
361
362 return 1;
363}
364#endif /* CONFIG_NET_CLS_IND */
365
366#endif
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
new file mode 100644
index 000000000000..87496e3aa330
--- /dev/null
+++ b/include/net/pkt_sched.h
@@ -0,0 +1,249 @@
1#ifndef __NET_PKT_SCHED_H
2#define __NET_PKT_SCHED_H
3
4#include <net/sch_generic.h>
5
6struct qdisc_walker
7{
8 int stop;
9 int skip;
10 int count;
11 int (*fn)(struct Qdisc *, unsigned long cl, struct qdisc_walker *);
12};
13
14extern rwlock_t qdisc_tree_lock;
15
16#define QDISC_ALIGN 32
17#define QDISC_ALIGN_CONST (QDISC_ALIGN - 1)
18
19static inline void *qdisc_priv(struct Qdisc *q)
20{
21 return (char *)q + ((sizeof(struct Qdisc) + QDISC_ALIGN_CONST)
22 & ~QDISC_ALIGN_CONST);
23}
24
25/*
26 Timer resolution MUST BE < 10% of min_schedulable_packet_size/bandwidth
27
28 Normal IP packet size ~ 512byte, hence:
29
30 0.5Kbyte/1Mbyte/sec = 0.5msec, so that we need 50usec timer for
31 10Mbit ethernet.
32
33 10msec resolution -> <50Kbit/sec.
34
35 The result: [34]86 is not good choice for QoS router :-(
36
37 The things are not so bad, because we may use artifical
38 clock evaluated by integration of network data flow
39 in the most critical places.
40
41 Note: we do not use fastgettimeofday.
42 The reason is that, when it is not the same thing as
43 gettimeofday, it returns invalid timestamp, which is
44 not updated, when net_bh is active.
45 */
46
47/* General note about internal clock.
48
49 Any clock source returns time intervals, measured in units
50 close to 1usec. With source CONFIG_NET_SCH_CLK_GETTIMEOFDAY it is precisely
51 microseconds, otherwise something close but different chosen to minimize
52 arithmetic cost. Ratio usec/internal untis in form nominator/denominator
53 may be read from /proc/net/psched.
54 */
55
56
57#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
58
59typedef struct timeval psched_time_t;
60typedef long psched_tdiff_t;
61
62#define PSCHED_GET_TIME(stamp) do_gettimeofday(&(stamp))
63#define PSCHED_US2JIFFIE(usecs) (((usecs)+(1000000/HZ-1))/(1000000/HZ))
64#define PSCHED_JIFFIE2US(delay) ((delay)*(1000000/HZ))
65
66#else /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
67
68typedef u64 psched_time_t;
69typedef long psched_tdiff_t;
70
71#ifdef CONFIG_NET_SCH_CLK_JIFFIES
72
73#if HZ < 96
74#define PSCHED_JSCALE 14
75#elif HZ >= 96 && HZ < 192
76#define PSCHED_JSCALE 13
77#elif HZ >= 192 && HZ < 384
78#define PSCHED_JSCALE 12
79#elif HZ >= 384 && HZ < 768
80#define PSCHED_JSCALE 11
81#elif HZ >= 768
82#define PSCHED_JSCALE 10
83#endif
84
85#define PSCHED_GET_TIME(stamp) ((stamp) = (get_jiffies_64()<<PSCHED_JSCALE))
86#define PSCHED_US2JIFFIE(delay) (((delay)+(1<<PSCHED_JSCALE)-1)>>PSCHED_JSCALE)
87#define PSCHED_JIFFIE2US(delay) ((delay)<<PSCHED_JSCALE)
88
89#endif /* CONFIG_NET_SCH_CLK_JIFFIES */
90#ifdef CONFIG_NET_SCH_CLK_CPU
91#include <asm/timex.h>
92
93extern psched_tdiff_t psched_clock_per_hz;
94extern int psched_clock_scale;
95extern psched_time_t psched_time_base;
96extern cycles_t psched_time_mark;
97
98#define PSCHED_GET_TIME(stamp) \
99do { \
100 cycles_t cur = get_cycles(); \
101 if (sizeof(cycles_t) == sizeof(u32)) { \
102 if (cur <= psched_time_mark) \
103 psched_time_base += 0x100000000ULL; \
104 psched_time_mark = cur; \
105 (stamp) = (psched_time_base + cur)>>psched_clock_scale; \
106 } else { \
107 (stamp) = cur>>psched_clock_scale; \
108 } \
109} while (0)
110#define PSCHED_US2JIFFIE(delay) (((delay)+psched_clock_per_hz-1)/psched_clock_per_hz)
111#define PSCHED_JIFFIE2US(delay) ((delay)*psched_clock_per_hz)
112
113#endif /* CONFIG_NET_SCH_CLK_CPU */
114
115#endif /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
116
117#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
118#define PSCHED_TDIFF(tv1, tv2) \
119({ \
120 int __delta_sec = (tv1).tv_sec - (tv2).tv_sec; \
121 int __delta = (tv1).tv_usec - (tv2).tv_usec; \
122 if (__delta_sec) { \
123 switch (__delta_sec) { \
124 default: \
125 __delta = 0; \
126 case 2: \
127 __delta += 1000000; \
128 case 1: \
129 __delta += 1000000; \
130 } \
131 } \
132 __delta; \
133})
134
135static inline int
136psched_tod_diff(int delta_sec, int bound)
137{
138 int delta;
139
140 if (bound <= 1000000 || delta_sec > (0x7FFFFFFF/1000000)-1)
141 return bound;
142 delta = delta_sec * 1000000;
143 if (delta > bound)
144 delta = bound;
145 return delta;
146}
147
148#define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
149({ \
150 int __delta_sec = (tv1).tv_sec - (tv2).tv_sec; \
151 int __delta = (tv1).tv_usec - (tv2).tv_usec; \
152 switch (__delta_sec) { \
153 default: \
154 __delta = psched_tod_diff(__delta_sec, bound); break; \
155 case 2: \
156 __delta += 1000000; \
157 case 1: \
158 __delta += 1000000; \
159 case 0: ; \
160 } \
161 __delta; \
162})
163
164#define PSCHED_TLESS(tv1, tv2) (((tv1).tv_usec < (tv2).tv_usec && \
165 (tv1).tv_sec <= (tv2).tv_sec) || \
166 (tv1).tv_sec < (tv2).tv_sec)
167
168#define PSCHED_TADD2(tv, delta, tv_res) \
169({ \
170 int __delta = (tv).tv_usec + (delta); \
171 (tv_res).tv_sec = (tv).tv_sec; \
172 if (__delta > 1000000) { (tv_res).tv_sec++; __delta -= 1000000; } \
173 (tv_res).tv_usec = __delta; \
174})
175
176#define PSCHED_TADD(tv, delta) \
177({ \
178 (tv).tv_usec += (delta); \
179 if ((tv).tv_usec > 1000000) { (tv).tv_sec++; \
180 (tv).tv_usec -= 1000000; } \
181})
182
183/* Set/check that time is in the "past perfect";
184 it depends on concrete representation of system time
185 */
186
187#define PSCHED_SET_PASTPERFECT(t) ((t).tv_sec = 0)
188#define PSCHED_IS_PASTPERFECT(t) ((t).tv_sec == 0)
189
190#define PSCHED_AUDIT_TDIFF(t) ({ if ((t) > 2000000) (t) = 2000000; })
191
192#else /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
193
194#define PSCHED_TDIFF(tv1, tv2) (long)((tv1) - (tv2))
195#define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
196 min_t(long long, (tv1) - (tv2), bound)
197
198
199#define PSCHED_TLESS(tv1, tv2) ((tv1) < (tv2))
200#define PSCHED_TADD2(tv, delta, tv_res) ((tv_res) = (tv) + (delta))
201#define PSCHED_TADD(tv, delta) ((tv) += (delta))
202#define PSCHED_SET_PASTPERFECT(t) ((t) = 0)
203#define PSCHED_IS_PASTPERFECT(t) ((t) == 0)
204#define PSCHED_AUDIT_TDIFF(t)
205
206#endif /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
207
208extern struct Qdisc noop_qdisc;
209extern struct Qdisc_ops noop_qdisc_ops;
210extern struct Qdisc_ops pfifo_qdisc_ops;
211extern struct Qdisc_ops bfifo_qdisc_ops;
212
213extern int register_qdisc(struct Qdisc_ops *qops);
214extern int unregister_qdisc(struct Qdisc_ops *qops);
215extern struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle);
216extern struct Qdisc *qdisc_lookup_class(struct net_device *dev, u32 handle);
217extern void dev_init_scheduler(struct net_device *dev);
218extern void dev_shutdown(struct net_device *dev);
219extern void dev_activate(struct net_device *dev);
220extern void dev_deactivate(struct net_device *dev);
221extern void qdisc_reset(struct Qdisc *qdisc);
222extern void qdisc_destroy(struct Qdisc *qdisc);
223extern struct Qdisc * qdisc_create_dflt(struct net_device *dev,
224 struct Qdisc_ops *ops);
225extern struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
226 struct rtattr *tab);
227extern void qdisc_put_rtab(struct qdisc_rate_table *tab);
228
229extern int qdisc_restart(struct net_device *dev);
230
231static inline void qdisc_run(struct net_device *dev)
232{
233 while (!netif_queue_stopped(dev) && qdisc_restart(dev) < 0)
234 /* NOTHING */;
235}
236
237extern int tc_classify(struct sk_buff *skb, struct tcf_proto *tp,
238 struct tcf_result *res);
239
240/* Calculate maximal size of packet seen by hard_start_xmit
241 routine of this device.
242 */
243static inline unsigned psched_mtu(struct net_device *dev)
244{
245 unsigned mtu = dev->mtu;
246 return dev->hard_header ? mtu + dev->hard_header_len : mtu;
247}
248
249#endif
diff --git a/include/net/protocol.h b/include/net/protocol.h
new file mode 100644
index 000000000000..357691f6a45f
--- /dev/null
+++ b/include/net/protocol.h
@@ -0,0 +1,99 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the protocol dispatcher.
7 *
8 * Version: @(#)protocol.h 1.0.2 05/07/93
9 *
10 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version
15 * 2 of the License, or (at your option) any later version.
16 *
17 * Changes:
18 * Alan Cox : Added a name field and a frag handler
19 * field for later.
20 * Alan Cox : Cleaned up, and sorted types.
21 * Pedro Roque : inet6 protocols
22 */
23
24#ifndef _PROTOCOL_H
25#define _PROTOCOL_H
26
27#include <linux/config.h>
28#include <linux/in6.h>
29#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
30#include <linux/ipv6.h>
31#endif
32
33#define MAX_INET_PROTOS 256 /* Must be a power of 2 */
34
35
36/* This is used to register protocols. */
37struct net_protocol {
38 int (*handler)(struct sk_buff *skb);
39 void (*err_handler)(struct sk_buff *skb, u32 info);
40 int no_policy;
41};
42
43#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
44struct inet6_protocol
45{
46 int (*handler)(struct sk_buff **skb, unsigned int *nhoffp);
47
48 void (*err_handler)(struct sk_buff *skb,
49 struct inet6_skb_parm *opt,
50 int type, int code, int offset,
51 __u32 info);
52 unsigned int flags; /* INET6_PROTO_xxx */
53};
54
55#define INET6_PROTO_NOPOLICY 0x1
56#define INET6_PROTO_FINAL 0x2
57#endif
58
59/* This is used to register socket interfaces for IP protocols. */
60struct inet_protosw {
61 struct list_head list;
62
63 /* These two fields form the lookup key. */
64 unsigned short type; /* This is the 2nd argument to socket(2). */
65 int protocol; /* This is the L4 protocol number. */
66
67 struct proto *prot;
68 struct proto_ops *ops;
69
70 int capability; /* Which (if any) capability do
71 * we need to use this socket
72 * interface?
73 */
74 char no_check; /* checksum on rcv/xmit/none? */
75 unsigned char flags; /* See INET_PROTOSW_* below. */
76};
77#define INET_PROTOSW_REUSE 0x01 /* Are ports automatically reusable? */
78#define INET_PROTOSW_PERMANENT 0x02 /* Permanent protocols are unremovable. */
79
80extern struct net_protocol *inet_protocol_base;
81extern struct net_protocol *inet_protos[MAX_INET_PROTOS];
82
83#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
84extern struct inet6_protocol *inet6_protos[MAX_INET_PROTOS];
85#endif
86
87extern int inet_add_protocol(struct net_protocol *prot, unsigned char num);
88extern int inet_del_protocol(struct net_protocol *prot, unsigned char num);
89extern void inet_register_protosw(struct inet_protosw *p);
90extern void inet_unregister_protosw(struct inet_protosw *p);
91
92#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
93extern int inet6_add_protocol(struct inet6_protocol *prot, unsigned char num);
94extern int inet6_del_protocol(struct inet6_protocol *prot, unsigned char num);
95extern void inet6_register_protosw(struct inet_protosw *p);
96extern void inet6_unregister_protosw(struct inet_protosw *p);
97#endif
98
99#endif /* _PROTOCOL_H */
diff --git a/include/net/psnap.h b/include/net/psnap.h
new file mode 100644
index 000000000000..9c94e8f98b36
--- /dev/null
+++ b/include/net/psnap.h
@@ -0,0 +1,7 @@
1#ifndef _NET_PSNAP_H
2#define _NET_PSNAP_H
3
4extern struct datalink_proto *register_snap_client(unsigned char *desc, int (*rcvfunc)(struct sk_buff *, struct net_device *, struct packet_type *));
5extern void unregister_snap_client(struct datalink_proto *proto);
6
7#endif
diff --git a/include/net/raw.h b/include/net/raw.h
new file mode 100644
index 000000000000..1c411c45587a
--- /dev/null
+++ b/include/net/raw.h
@@ -0,0 +1,42 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the RAW-IP module.
7 *
8 * Version: @(#)raw.h 1.0.2 05/07/93
9 *
10 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version
15 * 2 of the License, or (at your option) any later version.
16 */
17#ifndef _RAW_H
18#define _RAW_H
19
20
21extern struct proto raw_prot;
22
23
24extern void raw_err(struct sock *, struct sk_buff *, u32 info);
25extern int raw_rcv(struct sock *, struct sk_buff *);
26
27/* Note: v4 ICMP wants to get at this stuff, if you change the
28 * hashing mechanism, make sure you update icmp.c as well.
29 */
30#define RAWV4_HTABLE_SIZE MAX_INET_PROTOS
31extern struct hlist_head raw_v4_htable[RAWV4_HTABLE_SIZE];
32
33extern rwlock_t raw_v4_lock;
34
35
36extern struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
37 unsigned long raddr, unsigned long laddr,
38 int dif);
39
40extern void raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash);
41
42#endif /* _RAW_H */
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
new file mode 100644
index 000000000000..23fd9a6a221a
--- /dev/null
+++ b/include/net/rawv6.h
@@ -0,0 +1,27 @@
1#ifndef _NET_RAWV6_H
2#define _NET_RAWV6_H
3
4#ifdef __KERNEL__
5
6#define RAWV6_HTABLE_SIZE MAX_INET_PROTOS
7extern struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
8extern rwlock_t raw_v6_lock;
9
10extern void ipv6_raw_deliver(struct sk_buff *skb, int nexthdr);
11
12extern struct sock *__raw_v6_lookup(struct sock *sk, unsigned short num,
13 struct in6_addr *loc_addr, struct in6_addr *rmt_addr);
14
15extern int rawv6_rcv(struct sock *sk,
16 struct sk_buff *skb);
17
18
19extern void rawv6_err(struct sock *sk,
20 struct sk_buff *skb,
21 struct inet6_skb_parm *opt,
22 int type, int code,
23 int offset, u32 info);
24
25#endif
26
27#endif
diff --git a/include/net/rose.h b/include/net/rose.h
new file mode 100644
index 000000000000..3249b979605a
--- /dev/null
+++ b/include/net/rose.h
@@ -0,0 +1,235 @@
1/*
2 * Declarations of Rose type objects.
3 *
4 * Jonathan Naylor G4KLX 25/8/96
5 */
6
7#ifndef _ROSE_H
8#define _ROSE_H
9
10#include <linux/rose.h>
11#include <net/sock.h>
12
13#define ROSE_ADDR_LEN 5
14
15#define ROSE_MIN_LEN 3
16
17#define ROSE_GFI 0x10
18#define ROSE_Q_BIT 0x80
19#define ROSE_D_BIT 0x40
20#define ROSE_M_BIT 0x10
21
22#define ROSE_CALL_REQUEST 0x0B
23#define ROSE_CALL_ACCEPTED 0x0F
24#define ROSE_CLEAR_REQUEST 0x13
25#define ROSE_CLEAR_CONFIRMATION 0x17
26#define ROSE_DATA 0x00
27#define ROSE_INTERRUPT 0x23
28#define ROSE_INTERRUPT_CONFIRMATION 0x27
29#define ROSE_RR 0x01
30#define ROSE_RNR 0x05
31#define ROSE_REJ 0x09
32#define ROSE_RESET_REQUEST 0x1B
33#define ROSE_RESET_CONFIRMATION 0x1F
34#define ROSE_REGISTRATION_REQUEST 0xF3
35#define ROSE_REGISTRATION_CONFIRMATION 0xF7
36#define ROSE_RESTART_REQUEST 0xFB
37#define ROSE_RESTART_CONFIRMATION 0xFF
38#define ROSE_DIAGNOSTIC 0xF1
39#define ROSE_ILLEGAL 0xFD
40
41/* Define Link State constants. */
42
43enum {
44 ROSE_STATE_0, /* Ready */
45 ROSE_STATE_1, /* Awaiting Call Accepted */
46 ROSE_STATE_2, /* Awaiting Clear Confirmation */
47 ROSE_STATE_3, /* Data Transfer */
48 ROSE_STATE_4, /* Awaiting Reset Confirmation */
49 ROSE_STATE_5 /* Deferred Call Acceptance */
50};
51
52#define ROSE_DEFAULT_T0 (180 * HZ) /* Default T10 T20 value */
53#define ROSE_DEFAULT_T1 (200 * HZ) /* Default T11 T21 value */
54#define ROSE_DEFAULT_T2 (180 * HZ) /* Default T12 T22 value */
55#define ROSE_DEFAULT_T3 (180 * HZ) /* Default T13 T23 value */
56#define ROSE_DEFAULT_HB (5 * HZ) /* Default Holdback value */
57#define ROSE_DEFAULT_IDLE (0 * 60 * HZ) /* No Activity Timeout - none */
58#define ROSE_DEFAULT_ROUTING 1 /* Default routing flag */
59#define ROSE_DEFAULT_FAIL_TIMEOUT (120 * HZ) /* Time until link considered usable */
60#define ROSE_DEFAULT_MAXVC 50 /* Maximum number of VCs per neighbour */
61#define ROSE_DEFAULT_WINDOW_SIZE 7 /* Default window size */
62
63#define ROSE_MODULUS 8
64#define ROSE_MAX_PACKET_SIZE 251 /* Maximum packet size */
65
66#define ROSE_COND_ACK_PENDING 0x01
67#define ROSE_COND_PEER_RX_BUSY 0x02
68#define ROSE_COND_OWN_RX_BUSY 0x04
69
70#define FAC_NATIONAL 0x00
71#define FAC_CCITT 0x0F
72
73#define FAC_NATIONAL_RAND 0x7F
74#define FAC_NATIONAL_FLAGS 0x3F
75#define FAC_NATIONAL_DEST_DIGI 0xE9
76#define FAC_NATIONAL_SRC_DIGI 0xEB
77#define FAC_NATIONAL_FAIL_CALL 0xED
78#define FAC_NATIONAL_FAIL_ADD 0xEE
79#define FAC_NATIONAL_DIGIS 0xEF
80
81#define FAC_CCITT_DEST_NSAP 0xC9
82#define FAC_CCITT_SRC_NSAP 0xCB
83
84struct rose_neigh {
85 struct rose_neigh *next;
86 ax25_address callsign;
87 ax25_digi *digipeat;
88 ax25_cb *ax25;
89 struct net_device *dev;
90 unsigned short count;
91 unsigned short use;
92 unsigned int number;
93 char restarted;
94 char dce_mode;
95 char loopback;
96 struct sk_buff_head queue;
97 struct timer_list t0timer;
98 struct timer_list ftimer;
99};
100
101struct rose_node {
102 struct rose_node *next;
103 rose_address address;
104 unsigned short mask;
105 unsigned char count;
106 char loopback;
107 struct rose_neigh *neighbour[3];
108};
109
110struct rose_route {
111 struct rose_route *next;
112 unsigned int lci1, lci2;
113 rose_address src_addr, dest_addr;
114 ax25_address src_call, dest_call;
115 struct rose_neigh *neigh1, *neigh2;
116 unsigned int rand;
117};
118
119struct rose_sock {
120 struct sock sock;
121 rose_address source_addr, dest_addr;
122 ax25_address source_call, dest_call;
123 unsigned char source_ndigis, dest_ndigis;
124 ax25_address source_digis[ROSE_MAX_DIGIS];
125 ax25_address dest_digis[ROSE_MAX_DIGIS];
126 struct rose_neigh *neighbour;
127 struct net_device *device;
128 unsigned int lci, rand;
129 unsigned char state, condition, qbitincl, defer;
130 unsigned char cause, diagnostic;
131 unsigned short vs, vr, va, vl;
132 unsigned long t1, t2, t3, hb, idle;
133#ifdef M_BIT
134 unsigned short fraglen;
135 struct sk_buff_head frag_queue;
136#endif
137 struct sk_buff_head ack_queue;
138 struct rose_facilities_struct facilities;
139 struct timer_list timer;
140 struct timer_list idletimer;
141};
142
143#define rose_sk(sk) ((struct rose_sock *)(sk))
144
145/* af_rose.c */
146extern ax25_address rose_callsign;
147extern int sysctl_rose_restart_request_timeout;
148extern int sysctl_rose_call_request_timeout;
149extern int sysctl_rose_reset_request_timeout;
150extern int sysctl_rose_clear_request_timeout;
151extern int sysctl_rose_no_activity_timeout;
152extern int sysctl_rose_ack_hold_back_timeout;
153extern int sysctl_rose_routing_control;
154extern int sysctl_rose_link_fail_timeout;
155extern int sysctl_rose_maximum_vcs;
156extern int sysctl_rose_window_size;
157extern int rosecmp(rose_address *, rose_address *);
158extern int rosecmpm(rose_address *, rose_address *, unsigned short);
159extern const char *rose2asc(const rose_address *);
160extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
161extern void rose_kill_by_neigh(struct rose_neigh *);
162extern unsigned int rose_new_lci(struct rose_neigh *);
163extern int rose_rx_call_request(struct sk_buff *, struct net_device *, struct rose_neigh *, unsigned int);
164extern void rose_destroy_socket(struct sock *);
165
166/* rose_dev.c */
167extern void rose_setup(struct net_device *);
168
169/* rose_in.c */
170extern int rose_process_rx_frame(struct sock *, struct sk_buff *);
171
172/* rose_link.c */
173extern void rose_start_ftimer(struct rose_neigh *);
174extern void rose_stop_ftimer(struct rose_neigh *);
175extern void rose_stop_t0timer(struct rose_neigh *);
176extern int rose_ftimer_running(struct rose_neigh *);
177extern void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short);
178extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char, unsigned char);
179extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
180
181/* rose_loopback.c */
182extern void rose_loopback_init(void);
183extern void rose_loopback_clear(void);
184extern int rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
185
186/* rose_out.c */
187extern void rose_kick(struct sock *);
188extern void rose_enquiry_response(struct sock *);
189
190/* rose_route.c */
191extern struct rose_neigh *rose_loopback_neigh;
192extern struct file_operations rose_neigh_fops;
193extern struct file_operations rose_nodes_fops;
194extern struct file_operations rose_routes_fops;
195
196extern int rose_add_loopback_neigh(void);
197extern int rose_add_loopback_node(rose_address *);
198extern void rose_del_loopback_node(rose_address *);
199extern void rose_rt_device_down(struct net_device *);
200extern void rose_link_device_down(struct net_device *);
201extern struct net_device *rose_dev_first(void);
202extern struct net_device *rose_dev_get(rose_address *);
203extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
204extern struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, unsigned char *);
205extern int rose_rt_ioctl(unsigned int, void __user *);
206extern void rose_link_failed(ax25_cb *, int);
207extern int rose_route_frame(struct sk_buff *, ax25_cb *);
208extern void rose_rt_free(void);
209
210/* rose_subr.c */
211extern void rose_clear_queues(struct sock *);
212extern void rose_frames_acked(struct sock *, unsigned short);
213extern void rose_requeue_frames(struct sock *);
214extern int rose_validate_nr(struct sock *, unsigned short);
215extern void rose_write_internal(struct sock *, int);
216extern int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
217extern int rose_parse_facilities(unsigned char *, struct rose_facilities_struct *);
218extern void rose_disconnect(struct sock *, int, int, int);
219
220/* rose_timer.c */
221extern void rose_start_heartbeat(struct sock *);
222extern void rose_start_t1timer(struct sock *);
223extern void rose_start_t2timer(struct sock *);
224extern void rose_start_t3timer(struct sock *);
225extern void rose_start_hbtimer(struct sock *);
226extern void rose_start_idletimer(struct sock *);
227extern void rose_stop_heartbeat(struct sock *);
228extern void rose_stop_timer(struct sock *);
229extern void rose_stop_idletimer(struct sock *);
230
231/* sysctl_net_rose.c */
232extern void rose_register_sysctl(void);
233extern void rose_unregister_sysctl(void);
234
235#endif
diff --git a/include/net/route.h b/include/net/route.h
new file mode 100644
index 000000000000..22da7579d5de
--- /dev/null
+++ b/include/net/route.h
@@ -0,0 +1,205 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the IP router.
7 *
8 * Version: @(#)route.h 1.0.4 05/27/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * Fixes:
13 * Alan Cox : Reformatted. Added ip_rt_local()
14 * Alan Cox : Support for TCP parameters.
15 * Alexey Kuznetsov: Major changes for new routing code.
16 * Mike McLagan : Routing by source
17 * Robert Olsson : Added rt_cache statistics
18 *
19 * This program is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU General Public License
21 * as published by the Free Software Foundation; either version
22 * 2 of the License, or (at your option) any later version.
23 */
24#ifndef _ROUTE_H
25#define _ROUTE_H
26
27#include <linux/config.h>
28#include <net/dst.h>
29#include <net/inetpeer.h>
30#include <net/flow.h>
31#include <linux/in_route.h>
32#include <linux/rtnetlink.h>
33#include <linux/route.h>
34#include <linux/ip.h>
35#include <linux/cache.h>
36
37#ifndef __KERNEL__
38#warning This file is not supposed to be used outside of kernel.
39#endif
40
41#define RTO_ONLINK 0x01
42
43#define RTO_CONN 0
44/* RTO_CONN is not used (being alias for 0), but preserved not to break
45 * some modules referring to it. */
46
47#define RT_CONN_FLAGS(sk) (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE))
48
49struct fib_nh;
50struct inet_peer;
51struct rtable
52{
53 union
54 {
55 struct dst_entry dst;
56 struct rtable *rt_next;
57 } u;
58
59 struct in_device *idev;
60
61 unsigned rt_flags;
62 __u16 rt_type;
63 __u16 rt_multipath_alg;
64
65 __u32 rt_dst; /* Path destination */
66 __u32 rt_src; /* Path source */
67 int rt_iif;
68
69 /* Info on neighbour */
70 __u32 rt_gateway;
71
72 /* Cache lookup keys */
73 struct flowi fl;
74
75 /* Miscellaneous cached information */
76 __u32 rt_spec_dst; /* RFC1122 specific destination */
77 struct inet_peer *peer; /* long-living peer info */
78};
79
80struct ip_rt_acct
81{
82 __u32 o_bytes;
83 __u32 o_packets;
84 __u32 i_bytes;
85 __u32 i_packets;
86};
87
88struct rt_cache_stat
89{
90 unsigned int in_hit;
91 unsigned int in_slow_tot;
92 unsigned int in_slow_mc;
93 unsigned int in_no_route;
94 unsigned int in_brd;
95 unsigned int in_martian_dst;
96 unsigned int in_martian_src;
97 unsigned int out_hit;
98 unsigned int out_slow_tot;
99 unsigned int out_slow_mc;
100 unsigned int gc_total;
101 unsigned int gc_ignored;
102 unsigned int gc_goal_miss;
103 unsigned int gc_dst_overflow;
104 unsigned int in_hlist_search;
105 unsigned int out_hlist_search;
106};
107
108extern struct rt_cache_stat *rt_cache_stat;
109#define RT_CACHE_STAT_INC(field) \
110 (per_cpu_ptr(rt_cache_stat, _smp_processor_id())->field++)
111
112extern struct ip_rt_acct *ip_rt_acct;
113
114struct in_device;
115extern int ip_rt_init(void);
116extern void ip_rt_redirect(u32 old_gw, u32 dst, u32 new_gw,
117 u32 src, u8 tos, struct net_device *dev);
118extern void ip_rt_advice(struct rtable **rp, int advice);
119extern void rt_cache_flush(int how);
120extern int __ip_route_output_key(struct rtable **, const struct flowi *flp);
121extern int ip_route_output_key(struct rtable **, struct flowi *flp);
122extern int ip_route_output_flow(struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);
123extern int ip_route_input(struct sk_buff*, u32 dst, u32 src, u8 tos, struct net_device *devin);
124extern unsigned short ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mtu);
125extern void ip_rt_send_redirect(struct sk_buff *skb);
126
127extern unsigned inet_addr_type(u32 addr);
128extern void ip_rt_multicast_event(struct in_device *);
129extern int ip_rt_ioctl(unsigned int cmd, void __user *arg);
130extern void ip_rt_get_source(u8 *src, struct rtable *rt);
131extern int ip_rt_dump(struct sk_buff *skb, struct netlink_callback *cb);
132
133static inline void ip_rt_put(struct rtable * rt)
134{
135 if (rt)
136 dst_release(&rt->u.dst);
137}
138
139#define IPTOS_RT_MASK (IPTOS_TOS_MASK & ~3)
140
141extern __u8 ip_tos2prio[16];
142
143static inline char rt_tos2priority(u8 tos)
144{
145 return ip_tos2prio[IPTOS_TOS(tos)>>1];
146}
147
148static inline int ip_route_connect(struct rtable **rp, u32 dst,
149 u32 src, u32 tos, int oif, u8 protocol,
150 u16 sport, u16 dport, struct sock *sk)
151{
152 struct flowi fl = { .oif = oif,
153 .nl_u = { .ip4_u = { .daddr = dst,
154 .saddr = src,
155 .tos = tos } },
156 .proto = protocol,
157 .uli_u = { .ports =
158 { .sport = sport,
159 .dport = dport } } };
160
161 int err;
162 if (!dst || !src) {
163 err = __ip_route_output_key(rp, &fl);
164 if (err)
165 return err;
166 fl.fl4_dst = (*rp)->rt_dst;
167 fl.fl4_src = (*rp)->rt_src;
168 ip_rt_put(*rp);
169 *rp = NULL;
170 }
171 return ip_route_output_flow(rp, &fl, sk, 0);
172}
173
174static inline int ip_route_newports(struct rtable **rp, u16 sport, u16 dport,
175 struct sock *sk)
176{
177 if (sport != (*rp)->fl.fl_ip_sport ||
178 dport != (*rp)->fl.fl_ip_dport) {
179 struct flowi fl;
180
181 memcpy(&fl, &(*rp)->fl, sizeof(fl));
182 fl.fl_ip_sport = sport;
183 fl.fl_ip_dport = dport;
184#if defined(CONFIG_IP_ROUTE_MULTIPATH_CACHED)
185 fl.flags |= FLOWI_FLAG_MULTIPATHOLDROUTE;
186#endif
187 ip_rt_put(*rp);
188 *rp = NULL;
189 return ip_route_output_flow(rp, &fl, sk, 0);
190 }
191 return 0;
192}
193
194extern void rt_bind_peer(struct rtable *rt, int create);
195
196static inline struct inet_peer *rt_get_peer(struct rtable *rt)
197{
198 if (rt->peer)
199 return rt->peer;
200
201 rt_bind_peer(rt, 0);
202 return rt->peer;
203}
204
205#endif /* _ROUTE_H */
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
new file mode 100644
index 000000000000..c57504b3b518
--- /dev/null
+++ b/include/net/sch_generic.h
@@ -0,0 +1,175 @@
1#ifndef __NET_SCHED_GENERIC_H
2#define __NET_SCHED_GENERIC_H
3
4#include <linux/config.h>
5#include <linux/netdevice.h>
6#include <linux/types.h>
7#include <linux/rcupdate.h>
8#include <linux/module.h>
9#include <linux/rtnetlink.h>
10#include <linux/pkt_sched.h>
11#include <linux/pkt_cls.h>
12#include <net/gen_stats.h>
13
14struct Qdisc_ops;
15struct qdisc_walker;
16struct tcf_walker;
17struct module;
18
19struct qdisc_rate_table
20{
21 struct tc_ratespec rate;
22 u32 data[256];
23 struct qdisc_rate_table *next;
24 int refcnt;
25};
26
27struct Qdisc
28{
29 int (*enqueue)(struct sk_buff *skb, struct Qdisc *dev);
30 struct sk_buff * (*dequeue)(struct Qdisc *dev);
31 unsigned flags;
32#define TCQ_F_BUILTIN 1
33#define TCQ_F_THROTTLED 2
34#define TCQ_F_INGRESS 4
35 int padded;
36 struct Qdisc_ops *ops;
37 u32 handle;
38 u32 parent;
39 atomic_t refcnt;
40 struct sk_buff_head q;
41 struct net_device *dev;
42 struct list_head list;
43
44 struct gnet_stats_basic bstats;
45 struct gnet_stats_queue qstats;
46 struct gnet_stats_rate_est rate_est;
47 spinlock_t *stats_lock;
48 struct rcu_head q_rcu;
49 int (*reshape_fail)(struct sk_buff *skb,
50 struct Qdisc *q);
51
52 /* This field is deprecated, but it is still used by CBQ
53 * and it will live until better solution will be invented.
54 */
55 struct Qdisc *__parent;
56};
57
58struct Qdisc_class_ops
59{
60 /* Child qdisc manipulation */
61 int (*graft)(struct Qdisc *, unsigned long cl,
62 struct Qdisc *, struct Qdisc **);
63 struct Qdisc * (*leaf)(struct Qdisc *, unsigned long cl);
64
65 /* Class manipulation routines */
66 unsigned long (*get)(struct Qdisc *, u32 classid);
67 void (*put)(struct Qdisc *, unsigned long);
68 int (*change)(struct Qdisc *, u32, u32,
69 struct rtattr **, unsigned long *);
70 int (*delete)(struct Qdisc *, unsigned long);
71 void (*walk)(struct Qdisc *, struct qdisc_walker * arg);
72
73 /* Filter manipulation */
74 struct tcf_proto ** (*tcf_chain)(struct Qdisc *, unsigned long);
75 unsigned long (*bind_tcf)(struct Qdisc *, unsigned long,
76 u32 classid);
77 void (*unbind_tcf)(struct Qdisc *, unsigned long);
78
79 /* rtnetlink specific */
80 int (*dump)(struct Qdisc *, unsigned long,
81 struct sk_buff *skb, struct tcmsg*);
82 int (*dump_stats)(struct Qdisc *, unsigned long,
83 struct gnet_dump *);
84};
85
86struct Qdisc_ops
87{
88 struct Qdisc_ops *next;
89 struct Qdisc_class_ops *cl_ops;
90 char id[IFNAMSIZ];
91 int priv_size;
92
93 int (*enqueue)(struct sk_buff *, struct Qdisc *);
94 struct sk_buff * (*dequeue)(struct Qdisc *);
95 int (*requeue)(struct sk_buff *, struct Qdisc *);
96 unsigned int (*drop)(struct Qdisc *);
97
98 int (*init)(struct Qdisc *, struct rtattr *arg);
99 void (*reset)(struct Qdisc *);
100 void (*destroy)(struct Qdisc *);
101 int (*change)(struct Qdisc *, struct rtattr *arg);
102
103 int (*dump)(struct Qdisc *, struct sk_buff *);
104 int (*dump_stats)(struct Qdisc *, struct gnet_dump *);
105
106 struct module *owner;
107};
108
109
110struct tcf_result
111{
112 unsigned long class;
113 u32 classid;
114};
115
116struct tcf_proto_ops
117{
118 struct tcf_proto_ops *next;
119 char kind[IFNAMSIZ];
120
121 int (*classify)(struct sk_buff*, struct tcf_proto*,
122 struct tcf_result *);
123 int (*init)(struct tcf_proto*);
124 void (*destroy)(struct tcf_proto*);
125
126 unsigned long (*get)(struct tcf_proto*, u32 handle);
127 void (*put)(struct tcf_proto*, unsigned long);
128 int (*change)(struct tcf_proto*, unsigned long,
129 u32 handle, struct rtattr **,
130 unsigned long *);
131 int (*delete)(struct tcf_proto*, unsigned long);
132 void (*walk)(struct tcf_proto*, struct tcf_walker *arg);
133
134 /* rtnetlink specific */
135 int (*dump)(struct tcf_proto*, unsigned long,
136 struct sk_buff *skb, struct tcmsg*);
137
138 struct module *owner;
139};
140
141struct tcf_proto
142{
143 /* Fast access part */
144 struct tcf_proto *next;
145 void *root;
146 int (*classify)(struct sk_buff*, struct tcf_proto*,
147 struct tcf_result *);
148 u32 protocol;
149
150 /* All the rest */
151 u32 prio;
152 u32 classid;
153 struct Qdisc *q;
154 void *data;
155 struct tcf_proto_ops *ops;
156};
157
158
159extern void qdisc_lock_tree(struct net_device *dev);
160extern void qdisc_unlock_tree(struct net_device *dev);
161
162#define sch_tree_lock(q) qdisc_lock_tree((q)->dev)
163#define sch_tree_unlock(q) qdisc_unlock_tree((q)->dev)
164#define tcf_tree_lock(tp) qdisc_lock_tree((tp)->q->dev)
165#define tcf_tree_unlock(tp) qdisc_unlock_tree((tp)->q->dev)
166
167static inline void
168tcf_destroy(struct tcf_proto *tp)
169{
170 tp->ops->destroy(tp);
171 module_put(tp->ops->owner);
172 kfree(tp);
173}
174
175#endif
diff --git a/include/net/scm.h b/include/net/scm.h
new file mode 100644
index 000000000000..c3fa3d5ab606
--- /dev/null
+++ b/include/net/scm.h
@@ -0,0 +1,71 @@
1#ifndef __LINUX_NET_SCM_H
2#define __LINUX_NET_SCM_H
3
4#include <linux/limits.h>
5#include <linux/net.h>
6
7/* Well, we should have at least one descriptor open
8 * to accept passed FDs 8)
9 */
10#define SCM_MAX_FD (OPEN_MAX-1)
11
12struct scm_fp_list
13{
14 int count;
15 struct file *fp[SCM_MAX_FD];
16};
17
18struct scm_cookie
19{
20 struct ucred creds; /* Skb credentials */
21 struct scm_fp_list *fp; /* Passed files */
22 unsigned long seq; /* Connection seqno */
23};
24
25extern void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm);
26extern void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm);
27extern int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm);
28extern void __scm_destroy(struct scm_cookie *scm);
29extern struct scm_fp_list * scm_fp_dup(struct scm_fp_list *fpl);
30
31static __inline__ void scm_destroy(struct scm_cookie *scm)
32{
33 if (scm && scm->fp)
34 __scm_destroy(scm);
35}
36
37static __inline__ int scm_send(struct socket *sock, struct msghdr *msg,
38 struct scm_cookie *scm)
39{
40 memset(scm, 0, sizeof(*scm));
41 scm->creds.uid = current->uid;
42 scm->creds.gid = current->gid;
43 scm->creds.pid = current->tgid;
44 if (msg->msg_controllen <= 0)
45 return 0;
46 return __scm_send(sock, msg, scm);
47}
48
49static __inline__ void scm_recv(struct socket *sock, struct msghdr *msg,
50 struct scm_cookie *scm, int flags)
51{
52 if (!msg->msg_control)
53 {
54 if (test_bit(SOCK_PASSCRED, &sock->flags) || scm->fp)
55 msg->msg_flags |= MSG_CTRUNC;
56 scm_destroy(scm);
57 return;
58 }
59
60 if (test_bit(SOCK_PASSCRED, &sock->flags))
61 put_cmsg(msg, SOL_SOCKET, SCM_CREDENTIALS, sizeof(scm->creds), &scm->creds);
62
63 if (!scm->fp)
64 return;
65
66 scm_detach_fds(msg, scm);
67}
68
69
70#endif /* __LINUX_NET_SCM_H */
71
diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h
new file mode 100644
index 000000000000..ebc5282e6d58
--- /dev/null
+++ b/include/net/sctp/command.h
@@ -0,0 +1,211 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (C) 1999-2001 Cisco, Motorola
4 *
5 * This file is part of the SCTP kernel reference Implementation
6 *
7 * These are the definitions needed for the command object.
8 *
9 * The SCTP reference implementation is free software;
10 * you can redistribute it and/or modify it under the terms of
11 * the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * the SCTP reference implementation is distributed in the hope that it
16 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
17 * ************************
18 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 * See the GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with GNU CC; see the file COPYING. If not, write to
23 * the Free Software Foundation, 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
25 *
26 * Please send any bug reports or fixes you make to one of the
27 * following email addresses:
28 *
29 * La Monte H.P. Yarroll <piggy@acm.org>
30 * Karl Knutson <karl@athena.chicago.il.us>
31 * Ardelle Fan <ardelle.fan@intel.com>
32 * Sridhar Samudrala <sri@us.ibm.com>
33 *
34 * Any bugs reported given to us we will try to fix... any fixes shared will
35 * be incorporated into the next SCTP release.
36 */
37
38
39#ifndef __net_sctp_command_h__
40#define __net_sctp_command_h__
41
42#include <net/sctp/constants.h>
43#include <net/sctp/structs.h>
44
45
46typedef enum {
47 SCTP_CMD_NOP = 0, /* Do nothing. */
48 SCTP_CMD_NEW_ASOC, /* Register a new association. */
49 SCTP_CMD_DELETE_TCB, /* Delete the current association. */
50 SCTP_CMD_NEW_STATE, /* Enter a new state. */
51 SCTP_CMD_REPORT_TSN, /* Record the arrival of a TSN. */
52 SCTP_CMD_GEN_SACK, /* Send a Selective ACK (maybe). */
53 SCTP_CMD_PROCESS_SACK, /* Process an inbound SACK. */
54 SCTP_CMD_GEN_INIT_ACK, /* Generate an INIT ACK chunk. */
55 SCTP_CMD_PEER_INIT, /* Process a INIT from the peer. */
56 SCTP_CMD_GEN_COOKIE_ECHO, /* Generate a COOKIE ECHO chunk. */
57 SCTP_CMD_CHUNK_ULP, /* Send a chunk to the sockets layer. */
58 SCTP_CMD_EVENT_ULP, /* Send a notification to the sockets layer. */
59 SCTP_CMD_REPLY, /* Send a chunk to our peer. */
60 SCTP_CMD_SEND_PKT, /* Send a full packet to our peer. */
61 SCTP_CMD_RETRAN, /* Mark a transport for retransmission. */
62 SCTP_CMD_ECN_CE, /* Do delayed CE processing. */
63 SCTP_CMD_ECN_ECNE, /* Do delayed ECNE processing. */
64 SCTP_CMD_ECN_CWR, /* Do delayed CWR processing. */
65 SCTP_CMD_TIMER_START, /* Start a timer. */
66 SCTP_CMD_TIMER_RESTART, /* Restart a timer. */
67 SCTP_CMD_TIMER_STOP, /* Stop a timer. */
68 SCTP_CMD_COUNTER_RESET, /* Reset a counter. */
69 SCTP_CMD_COUNTER_INC, /* Increment a counter. */
70 SCTP_CMD_INIT_RESTART, /* High level, do init timer work. */
71 SCTP_CMD_INIT_FAILED, /* High level, do init failure work. */
72 SCTP_CMD_REPORT_DUP, /* Report a duplicate TSN. */
73 SCTP_CMD_STRIKE, /* Mark a strike against a transport. */
74 SCTP_CMD_TRANSMIT, /* Transmit the outqueue. */
75 SCTP_CMD_HB_TIMERS_START, /* Start the heartbeat timers. */
76 SCTP_CMD_HB_TIMER_UPDATE, /* Update a heartbeat timers. */
77 SCTP_CMD_HB_TIMERS_STOP, /* Stop the heartbeat timers. */
78 SCTP_CMD_TRANSPORT_RESET, /* Reset the status of a transport. */
79 SCTP_CMD_TRANSPORT_ON, /* Mark the transport as active. */
80 SCTP_CMD_REPORT_ERROR, /* Pass this error back out of the sm. */
81 SCTP_CMD_REPORT_BAD_TAG, /* Verification tags didn't match. */
82 SCTP_CMD_PROCESS_CTSN, /* Sideeffect from shutdown. */
83 SCTP_CMD_ASSOC_FAILED, /* Handle association failure. */
84 SCTP_CMD_DISCARD_PACKET, /* Discard the whole packet. */
85 SCTP_CMD_GEN_SHUTDOWN, /* Generate a SHUTDOWN chunk. */
86 SCTP_CMD_UPDATE_ASSOC, /* Update association information. */
87 SCTP_CMD_PURGE_OUTQUEUE, /* Purge all data waiting to be sent. */
88 SCTP_CMD_SETUP_T2, /* Hi-level, setup T2-shutdown parms. */
89 SCTP_CMD_RTO_PENDING, /* Set transport's rto_pending. */
90 SCTP_CMD_PART_DELIVER, /* Partial data delivery considerations. */
91 SCTP_CMD_RENEGE, /* Renege data on an association. */
92 SCTP_CMD_SETUP_T4, /* ADDIP, setup T4 RTO timer parms. */
93 SCTP_CMD_PROCESS_OPERR, /* Process an ERROR chunk. */
94 SCTP_CMD_REPORT_FWDTSN, /* Report new cumulative TSN Ack. */
95 SCTP_CMD_PROCESS_FWDTSN, /* Skips were reported, so process further. */
96 SCTP_CMD_CLEAR_INIT_TAG, /* Clears association peer's inittag. */
97 SCTP_CMD_DEL_NON_PRIMARY, /* Removes non-primary peer transports. */
98 SCTP_CMD_T3_RTX_TIMERS_STOP, /* Stops T3-rtx pending timers */
99 SCTP_CMD_FORCE_PRIM_RETRAN, /* Forces retrans. over primary path. */
100 SCTP_CMD_LAST
101} sctp_verb_t;
102
103#define SCTP_CMD_MAX (SCTP_CMD_LAST - 1)
104#define SCTP_CMD_NUM_VERBS (SCTP_CMD_MAX + 1)
105
106/* How many commands can you put in an sctp_cmd_seq_t?
107 * This is a rather arbitrary number, ideally derived from a careful
108 * analysis of the state functions, but in reality just taken from
109 * thin air in the hopes othat we don't trigger a kernel panic.
110 */
111#define SCTP_MAX_NUM_COMMANDS 14
112
113typedef union {
114 __s32 i32;
115 __u32 u32;
116 __u16 u16;
117 __u8 u8;
118 int error;
119 sctp_state_t state;
120 sctp_event_timeout_t to;
121 sctp_counter_t counter;
122 void *ptr;
123 struct sctp_chunk *chunk;
124 struct sctp_association *asoc;
125 struct sctp_transport *transport;
126 struct sctp_bind_addr *bp;
127 sctp_init_chunk_t *init;
128 struct sctp_ulpevent *ulpevent;
129 struct sctp_packet *packet;
130 sctp_sackhdr_t *sackh;
131} sctp_arg_t;
132
133/* We are simulating ML type constructors here.
134 *
135 * SCTP_ARG_CONSTRUCTOR(NAME, TYPE, ELT) builds a function called
136 * SCTP_NAME() which takes an argument of type TYPE and returns an
137 * sctp_arg_t. It does this by inserting the sole argument into the
138 * ELT union element of a local sctp_arg_t.
139 *
140 * E.g., SCTP_ARG_CONSTRUCTOR(I32, __s32, i32) builds SCTP_I32(arg),
141 * which takes an __s32 and returns a sctp_arg_t containing the
142 * __s32. So, after foo = SCTP_I32(arg), foo.i32 == arg.
143 */
144static inline sctp_arg_t SCTP_NULL(void)
145{
146 sctp_arg_t retval; retval.ptr = NULL; return retval;
147}
148static inline sctp_arg_t SCTP_NOFORCE(void)
149{
150 sctp_arg_t retval; retval.i32 = 0; return retval;
151}
152static inline sctp_arg_t SCTP_FORCE(void)
153{
154 sctp_arg_t retval; retval.i32 = 1; return retval;
155}
156
157#define SCTP_ARG_CONSTRUCTOR(name, type, elt) \
158static inline sctp_arg_t \
159SCTP_## name (type arg) \
160{ sctp_arg_t retval; retval.elt = arg; return retval; }
161
162SCTP_ARG_CONSTRUCTOR(I32, __s32, i32)
163SCTP_ARG_CONSTRUCTOR(U32, __u32, u32)
164SCTP_ARG_CONSTRUCTOR(U16, __u16, u16)
165SCTP_ARG_CONSTRUCTOR(U8, __u8, u8)
166SCTP_ARG_CONSTRUCTOR(ERROR, int, error)
167SCTP_ARG_CONSTRUCTOR(STATE, sctp_state_t, state)
168SCTP_ARG_CONSTRUCTOR(COUNTER, sctp_counter_t, counter)
169SCTP_ARG_CONSTRUCTOR(TO, sctp_event_timeout_t, to)
170SCTP_ARG_CONSTRUCTOR(PTR, void *, ptr)
171SCTP_ARG_CONSTRUCTOR(CHUNK, struct sctp_chunk *, chunk)
172SCTP_ARG_CONSTRUCTOR(ASOC, struct sctp_association *, asoc)
173SCTP_ARG_CONSTRUCTOR(TRANSPORT, struct sctp_transport *, transport)
174SCTP_ARG_CONSTRUCTOR(BA, struct sctp_bind_addr *, bp)
175SCTP_ARG_CONSTRUCTOR(PEER_INIT, sctp_init_chunk_t *, init)
176SCTP_ARG_CONSTRUCTOR(ULPEVENT, struct sctp_ulpevent *, ulpevent)
177SCTP_ARG_CONSTRUCTOR(PACKET, struct sctp_packet *, packet)
178SCTP_ARG_CONSTRUCTOR(SACKH, sctp_sackhdr_t *, sackh)
179
180typedef struct {
181 sctp_arg_t obj;
182 sctp_verb_t verb;
183} sctp_cmd_t;
184
185typedef struct {
186 sctp_cmd_t cmds[SCTP_MAX_NUM_COMMANDS];
187 __u8 next_free_slot;
188 __u8 next_cmd;
189} sctp_cmd_seq_t;
190
191
192/* Initialize a block of memory as a command sequence.
193 * Return 0 if the initialization fails.
194 */
195int sctp_init_cmd_seq(sctp_cmd_seq_t *seq);
196
197/* Add a command to an sctp_cmd_seq_t.
198 * Return 0 if the command sequence is full.
199 *
200 * Use the SCTP_* constructors defined by SCTP_ARG_CONSTRUCTOR() above
201 * to wrap data which goes in the obj argument.
202 */
203int sctp_add_cmd(sctp_cmd_seq_t *seq, sctp_verb_t verb, sctp_arg_t obj);
204
205/* Return the next command structure in an sctp_cmd_seq.
206 * Return NULL at the end of the sequence.
207 */
208sctp_cmd_t *sctp_next_cmd(sctp_cmd_seq_t *seq);
209
210#endif /* __net_sctp_command_h__ */
211
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
new file mode 100644
index 000000000000..2b76c0f4babc
--- /dev/null
+++ b/include/net/sctp/constants.h
@@ -0,0 +1,432 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
8 *
9 * The SCTP reference implementation is free software;
10 * you can redistribute it and/or modify it under the terms of
11 * the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * The SCTP reference implementation is distributed in the hope that it
16 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
17 * ************************
18 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 * See the GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with GNU CC; see the file COPYING. If not, write to
23 * the Free Software Foundation, 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
25 *
26 * Please send any bug reports or fixes you make to the
27 * email address(es):
28 * lksctp developers <lksctp-developers@lists.sourceforge.net>
29 *
30 * Or submit a bug report through the following website:
31 * http://www.sf.net/projects/lksctp
32 *
33 * Written or modified by:
34 * La Monte H.P. Yarroll <piggy@acm.org>
35 * Karl Knutson <karl@athena.chicago.il.us>
36 * Randall Stewart <randall@stewart.chicago.il.us>
37 * Ken Morneau <kmorneau@cisco.com>
38 * Qiaobing Xie <qxie1@motorola.com>
39 * Xingang Guo <xingang.guo@intel.com>
40 * Sridhar Samudrala <samudrala@us.ibm.com>
41 * Daisy Chang <daisyc@us.ibm.com>
42 *
43 * Any bugs reported given to us we will try to fix... any fixes shared will
44 * be incorporated into the next SCTP release.
45 */
46
47#ifndef __sctp_constants_h__
48#define __sctp_constants_h__
49
50#include <linux/tcp.h> /* For TCP states used in sctp_sock_state_t */
51#include <linux/sctp.h>
52#include <linux/ipv6.h> /* For ipv6hdr. */
53#include <net/sctp/user.h>
54
55/* Value used for stream negotiation. */
56enum { SCTP_MAX_STREAM = 0xffff };
57enum { SCTP_DEFAULT_OUTSTREAMS = 10 };
58enum { SCTP_DEFAULT_INSTREAMS = SCTP_MAX_STREAM };
59
60/* Since CIDs are sparse, we need all four of the following
61 * symbols. CIDs are dense through SCTP_CID_BASE_MAX.
62 */
63#define SCTP_CID_BASE_MAX SCTP_CID_SHUTDOWN_COMPLETE
64#define SCTP_CID_MAX SCTP_CID_ASCONF_ACK
65
66#define SCTP_NUM_BASE_CHUNK_TYPES (SCTP_CID_BASE_MAX + 1)
67#define SCTP_NUM_CHUNK_TYPES (SCTP_NUM_BASE_CHUNKTYPES + 2)
68
69#define SCTP_NUM_ADDIP_CHUNK_TYPES 2
70
71#define SCTP_NUM_PRSCTP_CHUNK_TYPES 1
72
73/* These are the different flavours of event. */
74typedef enum {
75
76 SCTP_EVENT_T_CHUNK = 1,
77 SCTP_EVENT_T_TIMEOUT,
78 SCTP_EVENT_T_OTHER,
79 SCTP_EVENT_T_PRIMITIVE
80
81} sctp_event_t;
82
83#define SCTP_EVENT_T_MAX SCTP_EVENT_T_PRIMITIVE
84#define SCTP_EVENT_T_NUM (SCTP_EVENT_T_MAX + 1)
85
86/* As a convenience for the state machine, we append SCTP_EVENT_* and
87 * SCTP_ULP_* to the list of possible chunks.
88 */
89
90typedef enum {
91 SCTP_EVENT_TIMEOUT_NONE = 0,
92 SCTP_EVENT_TIMEOUT_T1_COOKIE,
93 SCTP_EVENT_TIMEOUT_T1_INIT,
94 SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
95 SCTP_EVENT_TIMEOUT_T3_RTX,
96 SCTP_EVENT_TIMEOUT_T4_RTO,
97 SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
98 SCTP_EVENT_TIMEOUT_HEARTBEAT,
99 SCTP_EVENT_TIMEOUT_SACK,
100 SCTP_EVENT_TIMEOUT_AUTOCLOSE,
101} sctp_event_timeout_t;
102
103#define SCTP_EVENT_TIMEOUT_MAX SCTP_EVENT_TIMEOUT_AUTOCLOSE
104#define SCTP_NUM_TIMEOUT_TYPES (SCTP_EVENT_TIMEOUT_MAX + 1)
105
106typedef enum {
107 SCTP_EVENT_NO_PENDING_TSN = 0,
108 SCTP_EVENT_ICMP_PROTO_UNREACH,
109} sctp_event_other_t;
110
111#define SCTP_EVENT_OTHER_MAX SCTP_EVENT_ICMP_PROTO_UNREACH
112#define SCTP_NUM_OTHER_TYPES (SCTP_EVENT_OTHER_MAX + 1)
113
114/* These are primitive requests from the ULP. */
115typedef enum {
116 SCTP_PRIMITIVE_ASSOCIATE = 0,
117 SCTP_PRIMITIVE_SHUTDOWN,
118 SCTP_PRIMITIVE_ABORT,
119 SCTP_PRIMITIVE_SEND,
120 SCTP_PRIMITIVE_REQUESTHEARTBEAT,
121 SCTP_PRIMITIVE_ASCONF,
122} sctp_event_primitive_t;
123
124#define SCTP_EVENT_PRIMITIVE_MAX SCTP_PRIMITIVE_ASCONF
125#define SCTP_NUM_PRIMITIVE_TYPES (SCTP_EVENT_PRIMITIVE_MAX + 1)
126
127/* We define here a utility type for manipulating subtypes.
128 * The subtype constructors all work like this:
129 *
130 * sctp_subtype_t foo = SCTP_ST_CHUNK(SCTP_CID_INIT);
131 */
132
133typedef union {
134 sctp_cid_t chunk;
135 sctp_event_timeout_t timeout;
136 sctp_event_other_t other;
137 sctp_event_primitive_t primitive;
138} sctp_subtype_t;
139
140#define SCTP_SUBTYPE_CONSTRUCTOR(_name, _type, _elt) \
141static inline sctp_subtype_t \
142SCTP_ST_## _name (_type _arg) \
143{ sctp_subtype_t _retval; _retval._elt = _arg; return _retval; }
144
145SCTP_SUBTYPE_CONSTRUCTOR(CHUNK, sctp_cid_t, chunk)
146SCTP_SUBTYPE_CONSTRUCTOR(TIMEOUT, sctp_event_timeout_t, timeout)
147SCTP_SUBTYPE_CONSTRUCTOR(OTHER, sctp_event_other_t, other)
148SCTP_SUBTYPE_CONSTRUCTOR(PRIMITIVE, sctp_event_primitive_t, primitive)
149
150
151#define sctp_chunk_is_control(a) (a->chunk_hdr->type != SCTP_CID_DATA)
152#define sctp_chunk_is_data(a) (a->chunk_hdr->type == SCTP_CID_DATA)
153
154/* Calculate the actual data size in a data chunk */
155#define SCTP_DATA_SNDSIZE(c) ((int)((unsigned long)(c->chunk_end)\
156 - (unsigned long)(c->chunk_hdr)\
157 - sizeof(sctp_data_chunk_t)))
158
159#define SCTP_MAX_ERROR_CAUSE SCTP_ERROR_NONEXIST_IP
160#define SCTP_NUM_ERROR_CAUSE 10
161
162/* Internal error codes */
163typedef enum {
164
165 SCTP_IERROR_NO_ERROR = 0,
166 SCTP_IERROR_BASE = 1000,
167 SCTP_IERROR_NO_COOKIE,
168 SCTP_IERROR_BAD_SIG,
169 SCTP_IERROR_STALE_COOKIE,
170 SCTP_IERROR_NOMEM,
171 SCTP_IERROR_MALFORMED,
172 SCTP_IERROR_BAD_TAG,
173 SCTP_IERROR_BIG_GAP,
174 SCTP_IERROR_DUP_TSN,
175 SCTP_IERROR_HIGH_TSN,
176 SCTP_IERROR_IGNORE_TSN,
177 SCTP_IERROR_NO_DATA,
178 SCTP_IERROR_BAD_STREAM,
179 SCTP_IERROR_BAD_PORTS,
180
181} sctp_ierror_t;
182
183
184
185/* SCTP state defines for internal state machine */
186typedef enum {
187
188 SCTP_STATE_EMPTY = 0,
189 SCTP_STATE_CLOSED = 1,
190 SCTP_STATE_COOKIE_WAIT = 2,
191 SCTP_STATE_COOKIE_ECHOED = 3,
192 SCTP_STATE_ESTABLISHED = 4,
193 SCTP_STATE_SHUTDOWN_PENDING = 5,
194 SCTP_STATE_SHUTDOWN_SENT = 6,
195 SCTP_STATE_SHUTDOWN_RECEIVED = 7,
196 SCTP_STATE_SHUTDOWN_ACK_SENT = 8,
197
198} sctp_state_t;
199
200#define SCTP_STATE_MAX SCTP_STATE_SHUTDOWN_ACK_SENT
201#define SCTP_STATE_NUM_STATES (SCTP_STATE_MAX + 1)
202
203/* These are values for sk->state.
204 * For a UDP-style SCTP socket, the states are defined as follows
205 * - A socket in SCTP_SS_CLOSED state indicates that it is not willing to
206 * accept new associations, but it can initiate the creation of new ones.
207 * - A socket in SCTP_SS_LISTENING state indicates that it is willing to
208 * accept new associations and can initiate the creation of new ones.
209 * - A socket in SCTP_SS_ESTABLISHED state indicates that it is a peeled off
210 * socket with one association.
211 * For a TCP-style SCTP socket, the states are defined as follows
212 * - A socket in SCTP_SS_CLOSED state indicates that it is not willing to
213 * accept new associations, but it can initiate the creation of new ones.
214 * - A socket in SCTP_SS_LISTENING state indicates that it is willing to
215 * accept new associations, but cannot initiate the creation of new ones.
216 * - A socket in SCTP_SS_ESTABLISHED state indicates that it has a single
217 * association.
218 */
219typedef enum {
220 SCTP_SS_CLOSED = TCP_CLOSE,
221 SCTP_SS_LISTENING = TCP_LISTEN,
222 SCTP_SS_ESTABLISHING = TCP_SYN_SENT,
223 SCTP_SS_ESTABLISHED = TCP_ESTABLISHED,
224 SCTP_SS_DISCONNECTING = TCP_CLOSING,
225} sctp_sock_state_t;
226
227/* These functions map various type to printable names. */
228const char *sctp_cname(const sctp_subtype_t); /* chunk types */
229const char *sctp_oname(const sctp_subtype_t); /* other events */
230const char *sctp_tname(const sctp_subtype_t); /* timeouts */
231const char *sctp_pname(const sctp_subtype_t); /* primitives */
232
233/* This is a table of printable names of sctp_state_t's. */
234extern const char *sctp_state_tbl[], *sctp_evttype_tbl[], *sctp_status_tbl[];
235
236/* Maximum chunk length considering padding requirements. */
237enum { SCTP_MAX_CHUNK_LEN = ((1<<16) - sizeof(__u32)) };
238
239/* Encourage Cookie-Echo bundling by pre-fragmenting chunks a little
240 * harder (until reaching ESTABLISHED state).
241 */
242enum { SCTP_ARBITRARY_COOKIE_ECHO_LEN = 200 };
243
244/* Guess at how big to make the TSN mapping array.
245 * We guarantee that we can handle at least this big a gap between the
246 * cumulative ACK and the highest TSN. In practice, we can often
247 * handle up to twice this value.
248 *
249 * NEVER make this more than 32767 (2^15-1). The Gap Ack Blocks in a
250 * SACK (see section 3.3.4) are only 16 bits, so 2*SCTP_TSN_MAP_SIZE
251 * must be less than 65535 (2^16 - 1), or we will have overflow
252 * problems creating SACK's.
253 */
254#define SCTP_TSN_MAP_SIZE 2048
255#define SCTP_TSN_MAX_GAP 65535
256
257/* We will not record more than this many duplicate TSNs between two
258 * SACKs. The minimum PMTU is 576. Remove all the headers and there
259 * is enough room for 131 duplicate reports. Round down to the
260 * nearest power of 2.
261 */
262enum { SCTP_MIN_PMTU = 576 };
263enum { SCTP_MAX_DUP_TSNS = 16 };
264enum { SCTP_MAX_GABS = 16 };
265
266typedef enum {
267 SCTP_COUNTER_INIT_ERROR,
268} sctp_counter_t;
269
270/* How many counters does an association need? */
271#define SCTP_NUMBER_COUNTERS 5
272
273/* Here we define the default timers. */
274
275/* cookie timer def = ? seconds */
276#define SCTP_DEFAULT_TIMEOUT_T1_COOKIE (3 * HZ)
277
278/* init timer def = 3 seconds */
279#define SCTP_DEFAULT_TIMEOUT_T1_INIT (3 * HZ)
280
281/* shutdown timer def = 300 ms */
282#define SCTP_DEFAULT_TIMEOUT_T2_SHUTDOWN ((300 * HZ) / 1000)
283
284/* 0 seconds + RTO */
285#define SCTP_DEFAULT_TIMEOUT_HEARTBEAT (10 * HZ)
286
287/* recv timer def = 200ms (in usec) */
288#define SCTP_DEFAULT_TIMEOUT_SACK ((200 * HZ) / 1000)
289#define SCTP_DEFAULT_TIMEOUT_SACK_MAX ((500 * HZ) / 1000) /* 500 ms */
290
291/* RTO.Initial - 3 seconds
292 * RTO.Min - 1 second
293 * RTO.Max - 60 seconds
294 * RTO.Alpha - 1/8
295 * RTO.Beta - 1/4
296 */
297#define SCTP_RTO_INITIAL (3 * HZ)
298#define SCTP_RTO_MIN (1 * HZ)
299#define SCTP_RTO_MAX (60 * HZ)
300
301#define SCTP_RTO_ALPHA 3 /* 1/8 when converted to right shifts. */
302#define SCTP_RTO_BETA 2 /* 1/4 when converted to right shifts. */
303
304/* Maximum number of new data packets that can be sent in a burst. */
305#define SCTP_MAX_BURST 4
306
307#define SCTP_CLOCK_GRANULARITY 1 /* 1 jiffy */
308
309#define SCTP_DEF_MAX_INIT 6
310#define SCTP_DEF_MAX_SEND 10
311
312#define SCTP_DEFAULT_COOKIE_LIFE_SEC 60 /* seconds */
313#define SCTP_DEFAULT_COOKIE_LIFE_USEC 0 /* microseconds */
314
315#define SCTP_DEFAULT_MINWINDOW 1500 /* default minimum rwnd size */
316#define SCTP_DEFAULT_MAXWINDOW 65535 /* default rwnd size */
317#define SCTP_DEFAULT_MAXSEGMENT 1500 /* MTU size, this is the limit
318 * to which we will raise the P-MTU.
319 */
320#define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */
321#define SCTP_HOW_MANY_SECRETS 2 /* How many secrets I keep */
322#define SCTP_HOW_LONG_COOKIE_LIVE 3600 /* How many seconds the current
323 * secret will live?
324 */
325#define SCTP_SECRET_SIZE 32 /* Number of octets in a 256 bits. */
326
327#define SCTP_SIGNATURE_SIZE 20 /* size of a SLA-1 signature */
328
329#define SCTP_COOKIE_MULTIPLE 32 /* Pad out our cookie to make our hash
330 * functions simpler to write.
331 */
332
333#if defined (CONFIG_SCTP_HMAC_MD5)
334#define SCTP_COOKIE_HMAC_ALG "md5"
335#elif defined (CONFIG_SCTP_HMAC_SHA1)
336#define SCTP_COOKIE_HMAC_ALG "sha1"
337#else
338#define SCTP_COOKIE_HMAC_ALG NULL
339#endif
340
341/* These return values describe the success or failure of a number of
342 * routines which form the lower interface to SCTP_outqueue.
343 */
344typedef enum {
345 SCTP_XMIT_OK,
346 SCTP_XMIT_PMTU_FULL,
347 SCTP_XMIT_RWND_FULL,
348 SCTP_XMIT_NAGLE_DELAY,
349} sctp_xmit_t;
350
351/* These are the commands for manipulating transports. */
352typedef enum {
353 SCTP_TRANSPORT_UP,
354 SCTP_TRANSPORT_DOWN,
355} sctp_transport_cmd_t;
356
357/* These are the address scopes defined mainly for IPv4 addresses
358 * based on draft of SCTP IPv4 scoping <draft-stewart-tsvwg-sctp-ipv4-00.txt>.
359 * These scopes are hopefully generic enough to be used on scoping both
360 * IPv4 and IPv6 addresses in SCTP.
361 * At this point, the IPv6 scopes will be mapped to these internal scopes
362 * as much as possible.
363 */
364typedef enum {
365 SCTP_SCOPE_GLOBAL, /* IPv4 global addresses */
366 SCTP_SCOPE_PRIVATE, /* IPv4 private addresses */
367 SCTP_SCOPE_LINK, /* IPv4 link local address */
368 SCTP_SCOPE_LOOPBACK, /* IPv4 loopback address */
369 SCTP_SCOPE_UNUSABLE, /* IPv4 unusable addresses */
370} sctp_scope_t;
371
372/* Based on IPv4 scoping <draft-stewart-tsvwg-sctp-ipv4-00.txt>,
373 * SCTP IPv4 unusable addresses: 0.0.0.0/8, 224.0.0.0/4, 198.18.0.0/24,
374 * 192.88.99.0/24.
375 * Also, RFC 8.4, non-unicast addresses are not considered valid SCTP
376 * addresses.
377 */
378#define IS_IPV4_UNUSABLE_ADDRESS(a) \
379 ((INADDR_BROADCAST == *a) || \
380 (MULTICAST(*a)) || \
381 (((unsigned char *)(a))[0] == 0) || \
382 ((((unsigned char *)(a))[0] == 198) && \
383 (((unsigned char *)(a))[1] == 18) && \
384 (((unsigned char *)(a))[2] == 0)) || \
385 ((((unsigned char *)(a))[0] == 192) && \
386 (((unsigned char *)(a))[1] == 88) && \
387 (((unsigned char *)(a))[2] == 99)))
388
389/* IPv4 Link-local addresses: 169.254.0.0/16. */
390#define IS_IPV4_LINK_ADDRESS(a) \
391 ((((unsigned char *)(a))[0] == 169) && \
392 (((unsigned char *)(a))[1] == 254))
393
394/* RFC 1918 "Address Allocation for Private Internets" defines the IPv4
395 * private address space as the following:
396 *
397 * 10.0.0.0 - 10.255.255.255 (10/8 prefix)
398 * 172.16.0.0.0 - 172.31.255.255 (172.16/12 prefix)
399 * 192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
400 */
401#define IS_IPV4_PRIVATE_ADDRESS(a) \
402 ((((unsigned char *)(a))[0] == 10) || \
403 ((((unsigned char *)(a))[0] == 172) && \
404 (((unsigned char *)(a))[1] >= 16) && \
405 (((unsigned char *)(a))[1] < 32)) || \
406 ((((unsigned char *)(a))[0] == 192) && \
407 (((unsigned char *)(a))[1] == 168)))
408
409/* Flags used for the bind address copy functions. */
410#define SCTP_ADDR6_ALLOWED 0x00000001 /* IPv6 address is allowed by
411 local sock family */
412#define SCTP_ADDR4_PEERSUPP 0x00000002 /* IPv4 address is supported by
413 peer */
414#define SCTP_ADDR6_PEERSUPP 0x00000004 /* IPv6 address is supported by
415 peer */
416
417/* Reasons to retransmit. */
418typedef enum {
419 SCTP_RTXR_T3_RTX,
420 SCTP_RTXR_FAST_RTX,
421 SCTP_RTXR_PMTUD,
422} sctp_retransmit_reason_t;
423
424/* Reasons to lower cwnd. */
425typedef enum {
426 SCTP_LOWER_CWND_T3_RTX,
427 SCTP_LOWER_CWND_FAST_RTX,
428 SCTP_LOWER_CWND_ECNE,
429 SCTP_LOWER_CWND_INACTIVE,
430} sctp_lower_cwnd_t;
431
432#endif /* __sctp_constants_h__ */
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
new file mode 100644
index 000000000000..960abfa48d68
--- /dev/null
+++ b/include/net/sctp/sctp.h
@@ -0,0 +1,620 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001-2003 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
8 *
9 * The base lksctp header.
10 *
11 * The SCTP reference implementation is free software;
12 * you can redistribute it and/or modify it under the terms of
13 * the GNU General Public License as published by
14 * the Free Software Foundation; either version 2, or (at your option)
15 * any later version.
16 *
17 * The SCTP reference implementation is distributed in the hope that it
18 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
19 * ************************
20 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21 * See the GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with GNU CC; see the file COPYING. If not, write to
25 * the Free Software Foundation, 59 Temple Place - Suite 330,
26 * Boston, MA 02111-1307, USA.
27 *
28 * Please send any bug reports or fixes you make to the
29 * email address(es):
30 * lksctp developers <lksctp-developers@lists.sourceforge.net>
31 *
32 * Or submit a bug report through the following website:
33 * http://www.sf.net/projects/lksctp
34 *
35 * Written or modified by:
36 * La Monte H.P. Yarroll <piggy@acm.org>
37 * Xingang Guo <xingang.guo@intel.com>
38 * Jon Grimm <jgrimm@us.ibm.com>
39 * Daisy Chang <daisyc@us.ibm.com>
40 * Sridhar Samudrala <sri@us.ibm.com>
41 * Ardelle Fan <ardelle.fan@intel.com>
42 * Ryan Layer <rmlayer@us.ibm.com>
43 * Kevin Gao <kevin.gao@intel.com>
44 *
45 * Any bugs reported given to us we will try to fix... any fixes shared will
46 * be incorporated into the next SCTP release.
47 */
48
49#ifndef __net_sctp_h__
50#define __net_sctp_h__
51
52/* Header Strategy.
53 * Start getting some control over the header file depencies:
54 * includes
55 * constants
56 * structs
57 * prototypes
58 * macros, externs, and inlines
59 *
60 * Move test_frame specific items out of the kernel headers
61 * and into the test frame headers. This is not perfect in any sense
62 * and will continue to evolve.
63 */
64
65
66#include <linux/config.h>
67
68#ifdef TEST_FRAME
69#undef CONFIG_PROC_FS
70#undef CONFIG_SCTP_DBG_OBJCNT
71#undef CONFIG_SYSCTL
72#endif /* TEST_FRAME */
73
74#include <linux/types.h>
75#include <linux/slab.h>
76#include <linux/in.h>
77#include <linux/tty.h>
78#include <linux/proc_fs.h>
79#include <linux/spinlock.h>
80#include <linux/jiffies.h>
81#include <linux/idr.h>
82
83#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
84#include <net/ipv6.h>
85#include <net/ip6_route.h>
86#endif
87
88#include <asm/uaccess.h>
89#include <asm/page.h>
90#include <net/sock.h>
91#include <net/snmp.h>
92#include <net/sctp/structs.h>
93#include <net/sctp/constants.h>
94
95
96/* Set SCTP_DEBUG flag via config if not already set. */
97#ifndef SCTP_DEBUG
98#ifdef CONFIG_SCTP_DBG_MSG
99#define SCTP_DEBUG 1
100#else
101#define SCTP_DEBUG 0
102#endif /* CONFIG_SCTP_DBG */
103#endif /* SCTP_DEBUG */
104
105#ifdef CONFIG_IP_SCTP_MODULE
106#define SCTP_PROTOSW_FLAG 0
107#else /* static! */
108#define SCTP_PROTOSW_FLAG INET_PROTOSW_PERMANENT
109#endif
110
111
112/* Certain internal static functions need to be exported when
113 * compiled into the test frame.
114 */
115#ifndef SCTP_STATIC
116#define SCTP_STATIC static
117#endif
118
119/*
120 * Function declarations.
121 */
122
123/*
124 * sctp/protocol.c
125 */
126extern struct sock *sctp_get_ctl_sock(void);
127extern int sctp_copy_local_addr_list(struct sctp_bind_addr *,
128 sctp_scope_t, int gfp, int flags);
129extern struct sctp_pf *sctp_get_pf_specific(sa_family_t family);
130extern int sctp_register_pf(struct sctp_pf *, sa_family_t);
131
132/*
133 * sctp/socket.c
134 */
135int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
136int sctp_inet_listen(struct socket *sock, int backlog);
137void sctp_write_space(struct sock *sk);
138unsigned int sctp_poll(struct file *file, struct socket *sock,
139 poll_table *wait);
140
141/*
142 * sctp/primitive.c
143 */
144int sctp_primitive_ASSOCIATE(struct sctp_association *, void *arg);
145int sctp_primitive_SHUTDOWN(struct sctp_association *, void *arg);
146int sctp_primitive_ABORT(struct sctp_association *, void *arg);
147int sctp_primitive_SEND(struct sctp_association *, void *arg);
148int sctp_primitive_REQUESTHEARTBEAT(struct sctp_association *, void *arg);
149int sctp_primitive_ASCONF(struct sctp_association *, void *arg);
150
151/*
152 * sctp/crc32c.c
153 */
154__u32 sctp_start_cksum(__u8 *ptr, __u16 count);
155__u32 sctp_update_cksum(__u8 *ptr, __u16 count, __u32 cksum);
156__u32 sctp_end_cksum(__u32 cksum);
157__u32 sctp_update_copy_cksum(__u8 *, __u8 *, __u16 count, __u32 cksum);
158
159/*
160 * sctp/input.c
161 */
162int sctp_rcv(struct sk_buff *skb);
163void sctp_v4_err(struct sk_buff *skb, u32 info);
164void sctp_hash_established(struct sctp_association *);
165void sctp_unhash_established(struct sctp_association *);
166void sctp_hash_endpoint(struct sctp_endpoint *);
167void sctp_unhash_endpoint(struct sctp_endpoint *);
168struct sock *sctp_err_lookup(int family, struct sk_buff *,
169 struct sctphdr *, struct sctp_endpoint **,
170 struct sctp_association **,
171 struct sctp_transport **);
172void sctp_err_finish(struct sock *, struct sctp_endpoint *,
173 struct sctp_association *);
174void sctp_icmp_frag_needed(struct sock *, struct sctp_association *,
175 struct sctp_transport *t, __u32 pmtu);
176void sctp_icmp_proto_unreachable(struct sock *sk,
177 struct sctp_endpoint *ep,
178 struct sctp_association *asoc,
179 struct sctp_transport *t);
180
181/*
182 * Section: Macros, externs, and inlines
183 */
184
185
186#ifdef TEST_FRAME
187#include <test_frame.h>
188#else
189
190/* spin lock wrappers. */
191#define sctp_spin_lock_irqsave(lock, flags) spin_lock_irqsave(lock, flags)
192#define sctp_spin_unlock_irqrestore(lock, flags) \
193 spin_unlock_irqrestore(lock, flags)
194#define sctp_local_bh_disable() local_bh_disable()
195#define sctp_local_bh_enable() local_bh_enable()
196#define sctp_spin_lock(lock) spin_lock(lock)
197#define sctp_spin_unlock(lock) spin_unlock(lock)
198#define sctp_write_lock(lock) write_lock(lock)
199#define sctp_write_unlock(lock) write_unlock(lock)
200#define sctp_read_lock(lock) read_lock(lock)
201#define sctp_read_unlock(lock) read_unlock(lock)
202
203/* sock lock wrappers. */
204#define sctp_lock_sock(sk) lock_sock(sk)
205#define sctp_release_sock(sk) release_sock(sk)
206#define sctp_bh_lock_sock(sk) bh_lock_sock(sk)
207#define sctp_bh_unlock_sock(sk) bh_unlock_sock(sk)
208#define SCTP_SOCK_SLEEP_PRE(sk) SOCK_SLEEP_PRE(sk)
209#define SCTP_SOCK_SLEEP_POST(sk) SOCK_SLEEP_POST(sk)
210
211/* SCTP SNMP MIB stats handlers */
212DECLARE_SNMP_STAT(struct sctp_mib, sctp_statistics);
213#define SCTP_INC_STATS(field) SNMP_INC_STATS(sctp_statistics, field)
214#define SCTP_INC_STATS_BH(field) SNMP_INC_STATS_BH(sctp_statistics, field)
215#define SCTP_INC_STATS_USER(field) SNMP_INC_STATS_USER(sctp_statistics, field)
216#define SCTP_DEC_STATS(field) SNMP_DEC_STATS(sctp_statistics, field)
217
218#endif /* !TEST_FRAME */
219
220
221/* Print debugging messages. */
222#if SCTP_DEBUG
223extern int sctp_debug_flag;
224#define SCTP_DEBUG_PRINTK(whatever...) \
225 ((void) (sctp_debug_flag && printk(KERN_DEBUG whatever)))
226#define SCTP_ENABLE_DEBUG { sctp_debug_flag = 1; }
227#define SCTP_DISABLE_DEBUG { sctp_debug_flag = 0; }
228
229#define SCTP_ASSERT(expr, str, func) \
230 if (!(expr)) { \
231 SCTP_DEBUG_PRINTK("Assertion Failed: %s(%s) at %s:%s:%d\n", \
232 str, (#expr), __FILE__, __FUNCTION__, __LINE__); \
233 func; \
234 }
235
236#else /* SCTP_DEBUG */
237
238#define SCTP_DEBUG_PRINTK(whatever...)
239#define SCTP_ENABLE_DEBUG
240#define SCTP_DISABLE_DEBUG
241#define SCTP_ASSERT(expr, str, func)
242
243#endif /* SCTP_DEBUG */
244
245
246/*
247 * Macros for keeping a global reference of object allocations.
248 */
249#ifdef CONFIG_SCTP_DBG_OBJCNT
250
251extern atomic_t sctp_dbg_objcnt_sock;
252extern atomic_t sctp_dbg_objcnt_ep;
253extern atomic_t sctp_dbg_objcnt_assoc;
254extern atomic_t sctp_dbg_objcnt_transport;
255extern atomic_t sctp_dbg_objcnt_chunk;
256extern atomic_t sctp_dbg_objcnt_bind_addr;
257extern atomic_t sctp_dbg_objcnt_bind_bucket;
258extern atomic_t sctp_dbg_objcnt_addr;
259extern atomic_t sctp_dbg_objcnt_ssnmap;
260extern atomic_t sctp_dbg_objcnt_datamsg;
261
262/* Macros to atomically increment/decrement objcnt counters. */
263#define SCTP_DBG_OBJCNT_INC(name) \
264atomic_inc(&sctp_dbg_objcnt_## name)
265#define SCTP_DBG_OBJCNT_DEC(name) \
266atomic_dec(&sctp_dbg_objcnt_## name)
267#define SCTP_DBG_OBJCNT(name) \
268atomic_t sctp_dbg_objcnt_## name = ATOMIC_INIT(0)
269
270/* Macro to help create new entries in in the global array of
271 * objcnt counters.
272 */
273#define SCTP_DBG_OBJCNT_ENTRY(name) \
274{.label= #name, .counter= &sctp_dbg_objcnt_## name}
275
276void sctp_dbg_objcnt_init(void);
277void sctp_dbg_objcnt_exit(void);
278
279#else
280
281#define SCTP_DBG_OBJCNT_INC(name)
282#define SCTP_DBG_OBJCNT_DEC(name)
283
284static inline void sctp_dbg_objcnt_init(void) { return; }
285static inline void sctp_dbg_objcnt_exit(void) { return; }
286
287#endif /* CONFIG_SCTP_DBG_OBJCOUNT */
288
289#if defined CONFIG_SYSCTL
290void sctp_sysctl_register(void);
291void sctp_sysctl_unregister(void);
292#else
293static inline void sctp_sysctl_register(void) { return; }
294static inline void sctp_sysctl_unregister(void) { return; }
295static inline int sctp_sysctl_jiffies_ms(ctl_table *table, int __user *name, int nlen,
296 void __user *oldval, size_t __user *oldlenp,
297 void __user *newval, size_t newlen, void **context) {
298 return -ENOSYS;
299}
300#endif
301
302/* Size of Supported Address Parameter for 'x' address types. */
303#define SCTP_SAT_LEN(x) (sizeof(struct sctp_paramhdr) + (x) * sizeof(__u16))
304
305#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
306
307int sctp_v6_init(void);
308void sctp_v6_exit(void);
309
310#else /* #ifdef defined(CONFIG_IPV6) */
311
312static inline int sctp_v6_init(void) { return 0; }
313static inline void sctp_v6_exit(void) { return; }
314
315#endif /* #if defined(CONFIG_IPV6) */
316
317/* Some wrappers, in case crypto not available. */
318#if defined (CONFIG_CRYPTO_HMAC)
319#define sctp_crypto_alloc_tfm crypto_alloc_tfm
320#define sctp_crypto_free_tfm crypto_free_tfm
321#define sctp_crypto_hmac crypto_hmac
322#else
323#define sctp_crypto_alloc_tfm(x...) NULL
324#define sctp_crypto_free_tfm(x...)
325#define sctp_crypto_hmac(x...)
326#endif
327
328
329/* Map an association to an assoc_id. */
330static inline sctp_assoc_t sctp_assoc2id(const struct sctp_association *asoc)
331{
332 return (asoc?asoc->assoc_id:0);
333}
334
335/* Look up the association by its id. */
336struct sctp_association *sctp_id2assoc(struct sock *sk, sctp_assoc_t id);
337
338
339/* A macro to walk a list of skbs. */
340#define sctp_skb_for_each(pos, head, tmp) \
341for (pos = (head)->next;\
342 tmp = (pos)->next, pos != ((struct sk_buff *)(head));\
343 pos = tmp)
344
345
346/* A helper to append an entire skb list (list) to another (head). */
347static inline void sctp_skb_list_tail(struct sk_buff_head *list,
348 struct sk_buff_head *head)
349{
350 unsigned long flags;
351
352 sctp_spin_lock_irqsave(&head->lock, flags);
353 sctp_spin_lock(&list->lock);
354
355 list_splice((struct list_head *)list, (struct list_head *)head->prev);
356
357 head->qlen += list->qlen;
358 list->qlen = 0;
359
360 sctp_spin_unlock(&list->lock);
361 sctp_spin_unlock_irqrestore(&head->lock, flags);
362}
363
364/**
365 * sctp_list_dequeue - remove from the head of the queue
366 * @list: list to dequeue from
367 *
368 * Remove the head of the list. The head item is
369 * returned or %NULL if the list is empty.
370 */
371
372static inline struct list_head *sctp_list_dequeue(struct list_head *list)
373{
374 struct list_head *result = NULL;
375
376 if (list->next != list) {
377 result = list->next;
378 list->next = result->next;
379 list->next->prev = list;
380 INIT_LIST_HEAD(result);
381 }
382 return result;
383}
384
385/* Tests if the list has one and only one entry. */
386static inline int sctp_list_single_entry(struct list_head *head)
387{
388 return ((head->next != head) && (head->next == head->prev));
389}
390
391/* Calculate the size (in bytes) occupied by the data of an iovec. */
392static inline size_t get_user_iov_size(struct iovec *iov, int iovlen)
393{
394 size_t retval = 0;
395
396 for (; iovlen > 0; --iovlen) {
397 retval += iov->iov_len;
398 iov++;
399 }
400
401 return retval;
402}
403
404/* Generate a random jitter in the range of -50% ~ +50% of input RTO. */
405static inline __s32 sctp_jitter(__u32 rto)
406{
407 static __u32 sctp_rand;
408 __s32 ret;
409
410 /* Avoid divide by zero. */
411 if (!rto)
412 rto = 1;
413
414 sctp_rand += jiffies;
415 sctp_rand ^= (sctp_rand << 12);
416 sctp_rand ^= (sctp_rand >> 20);
417
418 /* Choose random number from 0 to rto, then move to -50% ~ +50%
419 * of rto.
420 */
421 ret = sctp_rand % rto - (rto >> 1);
422 return ret;
423}
424
425/* Break down data chunks at this point. */
426static inline int sctp_frag_point(const struct sctp_sock *sp, int pmtu)
427{
428 int frag = pmtu;
429
430 frag -= sp->pf->af->net_header_len;
431 frag -= sizeof(struct sctphdr) + sizeof(struct sctp_data_chunk);
432
433 if (sp->user_frag)
434 frag = min_t(int, frag, sp->user_frag);
435
436 frag = min_t(int, frag, SCTP_MAX_CHUNK_LEN);
437
438 return frag;
439}
440
441/* Walk through a list of TLV parameters. Don't trust the
442 * individual parameter lengths and instead depend on
443 * the chunk length to indicate when to stop. Make sure
444 * there is room for a param header too.
445 */
446#define sctp_walk_params(pos, chunk, member)\
447_sctp_walk_params((pos), (chunk), WORD_ROUND(ntohs((chunk)->chunk_hdr.length)), member)
448
449#define _sctp_walk_params(pos, chunk, end, member)\
450for (pos.v = chunk->member;\
451 pos.v <= (void *)chunk + end - sizeof(sctp_paramhdr_t) &&\
452 pos.v <= (void *)chunk + end - WORD_ROUND(ntohs(pos.p->length)) &&\
453 ntohs(pos.p->length) >= sizeof(sctp_paramhdr_t);\
454 pos.v += WORD_ROUND(ntohs(pos.p->length)))
455
456#define sctp_walk_errors(err, chunk_hdr)\
457_sctp_walk_errors((err), (chunk_hdr), ntohs((chunk_hdr)->length))
458
459#define _sctp_walk_errors(err, chunk_hdr, end)\
460for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
461 sizeof(sctp_chunkhdr_t));\
462 (void *)err <= (void *)chunk_hdr + end - sizeof(sctp_errhdr_t) &&\
463 (void *)err <= (void *)chunk_hdr + end - WORD_ROUND(ntohs(err->length)) &&\
464 ntohs(err->length) >= sizeof(sctp_errhdr_t); \
465 err = (sctp_errhdr_t *)((void *)err + WORD_ROUND(ntohs(err->length))))
466
467#define sctp_walk_fwdtsn(pos, chunk)\
468_sctp_walk_fwdtsn((pos), (chunk), ntohs((chunk)->chunk_hdr->length) - sizeof(struct sctp_fwdtsn_chunk))
469
470#define _sctp_walk_fwdtsn(pos, chunk, end)\
471for (pos = chunk->subh.fwdtsn_hdr->skip;\
472 (void *)pos <= (void *)chunk->subh.fwdtsn_hdr->skip + end - sizeof(struct sctp_fwdtsn_skip);\
473 pos++)
474
475/* Round an int up to the next multiple of 4. */
476#define WORD_ROUND(s) (((s)+3)&~3)
477
478/* Make a new instance of type. */
479#define t_new(type, flags) (type *)kmalloc(sizeof(type), flags)
480
481/* Compare two timevals. */
482#define tv_lt(s, t) \
483 (s.tv_sec < t.tv_sec || (s.tv_sec == t.tv_sec && s.tv_usec < t.tv_usec))
484
485/* Add tv1 to tv2. */
486#define TIMEVAL_ADD(tv1, tv2) \
487({ \
488 suseconds_t usecs = (tv2).tv_usec + (tv1).tv_usec; \
489 time_t secs = (tv2).tv_sec + (tv1).tv_sec; \
490\
491 if (usecs >= 1000000) { \
492 usecs -= 1000000; \
493 secs++; \
494 } \
495 (tv2).tv_sec = secs; \
496 (tv2).tv_usec = usecs; \
497})
498
499/* External references. */
500
501extern struct proto sctp_prot;
502extern struct proto sctpv6_prot;
503extern struct proc_dir_entry *proc_net_sctp;
504void sctp_put_port(struct sock *sk);
505
506extern struct idr sctp_assocs_id;
507extern spinlock_t sctp_assocs_id_lock;
508
509/* Static inline functions. */
510
511/* Convert from an IP version number to an Address Family symbol. */
512static inline int ipver2af(__u8 ipver)
513{
514 switch (ipver) {
515 case 4:
516 return AF_INET;
517 case 6:
518 return AF_INET6;
519 default:
520 return 0;
521 };
522}
523
524/* Convert from an address parameter type to an address family. */
525static inline int param_type2af(__u16 type)
526{
527 switch (type) {
528 case SCTP_PARAM_IPV4_ADDRESS:
529 return AF_INET;
530 case SCTP_PARAM_IPV6_ADDRESS:
531 return AF_INET6;
532 default:
533 return 0;
534 };
535}
536
537/* Perform some sanity checks. */
538static inline int sctp_sanity_check(void)
539{
540 SCTP_ASSERT(sizeof(struct sctp_ulpevent) <=
541 sizeof(((struct sk_buff *)0)->cb),
542 "SCTP: ulpevent does not fit in skb!\n", return 0);
543
544 return 1;
545}
546
547/* Warning: The following hash functions assume a power of two 'size'. */
548/* This is the hash function for the SCTP port hash table. */
549static inline int sctp_phashfn(__u16 lport)
550{
551 return (lport & (sctp_port_hashsize - 1));
552}
553
554/* This is the hash function for the endpoint hash table. */
555static inline int sctp_ep_hashfn(__u16 lport)
556{
557 return (lport & (sctp_ep_hashsize - 1));
558}
559
560/* This is the hash function for the association hash table. */
561static inline int sctp_assoc_hashfn(__u16 lport, __u16 rport)
562{
563 int h = (lport << 16) + rport;
564 h ^= h>>8;
565 return (h & (sctp_assoc_hashsize - 1));
566}
567
568/* This is the hash function for the association hash table. This is
569 * not used yet, but could be used as a better hash function when
570 * we have a vtag.
571 */
572static inline int sctp_vtag_hashfn(__u16 lport, __u16 rport, __u32 vtag)
573{
574 int h = (lport << 16) + rport;
575 h ^= vtag;
576 return (h & (sctp_assoc_hashsize-1));
577}
578
579/* Is a socket of this style? */
580#define sctp_style(sk, style) __sctp_style((sk), (SCTP_SOCKET_##style))
581static inline int __sctp_style(const struct sock *sk, sctp_socket_type_t style)
582{
583 return sctp_sk(sk)->type == style;
584}
585
586/* Is the association in this state? */
587#define sctp_state(asoc, state) __sctp_state((asoc), (SCTP_STATE_##state))
588static inline int __sctp_state(const struct sctp_association *asoc,
589 sctp_state_t state)
590{
591 return asoc->state == state;
592}
593
594/* Is the socket in this state? */
595#define sctp_sstate(sk, state) __sctp_sstate((sk), (SCTP_SS_##state))
596static inline int __sctp_sstate(const struct sock *sk, sctp_sock_state_t state)
597{
598 return sk->sk_state == state;
599}
600
601/* Map v4-mapped v6 address back to v4 address */
602static inline void sctp_v6_map_v4(union sctp_addr *addr)
603{
604 addr->v4.sin_family = AF_INET;
605 addr->v4.sin_port = addr->v6.sin6_port;
606 addr->v4.sin_addr.s_addr = addr->v6.sin6_addr.s6_addr32[3];
607}
608
609/* Map v4 address to v4-mapped v6 address */
610static inline void sctp_v4_map_v6(union sctp_addr *addr)
611{
612 addr->v6.sin6_family = AF_INET6;
613 addr->v6.sin6_port = addr->v4.sin_port;
614 addr->v6.sin6_addr.s6_addr32[3] = addr->v4.sin_addr.s_addr;
615 addr->v6.sin6_addr.s6_addr32[0] = 0;
616 addr->v6.sin6_addr.s6_addr32[1] = 0;
617 addr->v6.sin6_addr.s6_addr32[2] = htonl(0x0000ffff);
618}
619
620#endif /* __net_sctp_h__ */
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
new file mode 100644
index 000000000000..5576db56324d
--- /dev/null
+++ b/include/net/sctp/sm.h
@@ -0,0 +1,442 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
8 *
9 * These are definitions needed by the state machine.
10 *
11 * The SCTP reference implementation is free software;
12 * you can redistribute it and/or modify it under the terms of
13 * the GNU General Public License as published by
14 * the Free Software Foundation; either version 2, or (at your option)
15 * any later version.
16 *
17 * The SCTP reference implementation is distributed in the hope that it
18 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
19 * ************************
20 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21 * See the GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with GNU CC; see the file COPYING. If not, write to
25 * the Free Software Foundation, 59 Temple Place - Suite 330,
26 * Boston, MA 02111-1307, USA.
27 *
28 * Please send any bug reports or fixes you make to the
29 * email addresses:
30 * lksctp developers <lksctp-developers@lists.sourceforge.net>
31 *
32 * Or submit a bug report through the following website:
33 * http://www.sf.net/projects/lksctp
34 *
35 * Written or modified by:
36 * La Monte H.P. Yarroll <piggy@acm.org>
37 * Karl Knutson <karl@athena.chicago.il.us>
38 * Xingang Guo <xingang.guo@intel.com>
39 * Jon Grimm <jgrimm@us.ibm.com>
40 * Dajiang Zhang <dajiang.zhang@nokia.com>
41 * Sridhar Samudrala <sri@us.ibm.com>
42 * Daisy Chang <daisyc@us.ibm.com>
43 * Ardelle Fan <ardelle.fan@intel.com>
44 * Kevin Gao <kevin.gao@intel.com>
45 *
46 * Any bugs reported given to us we will try to fix... any fixes shared will
47 * be incorporated into the next SCTP release.
48 */
49
50#include <linux/types.h>
51#include <linux/compiler.h>
52#include <linux/slab.h>
53#include <linux/in.h>
54#include <net/sctp/command.h>
55#include <net/sctp/sctp.h>
56
57#ifndef __sctp_sm_h__
58#define __sctp_sm_h__
59
60/*
61 * Possible values for the disposition are:
62 */
63typedef enum {
64 SCTP_DISPOSITION_DISCARD, /* No further processing. */
65 SCTP_DISPOSITION_CONSUME, /* Process return values normally. */
66 SCTP_DISPOSITION_NOMEM, /* We ran out of memory--recover. */
67 SCTP_DISPOSITION_DELETE_TCB, /* Close the association. */
68 SCTP_DISPOSITION_ABORT, /* Close the association NOW. */
69 SCTP_DISPOSITION_VIOLATION, /* The peer is misbehaving. */
70 SCTP_DISPOSITION_NOT_IMPL, /* This entry is not implemented. */
71 SCTP_DISPOSITION_ERROR, /* This is plain old user error. */
72 SCTP_DISPOSITION_BUG, /* This is a bug. */
73} sctp_disposition_t;
74
75typedef struct {
76 int name;
77 int action;
78} sctp_sm_command_t;
79
80typedef sctp_disposition_t (sctp_state_fn_t) (const struct sctp_endpoint *,
81 const struct sctp_association *,
82 const sctp_subtype_t type,
83 void *arg,
84 sctp_cmd_seq_t *);
85typedef void (sctp_timer_event_t) (unsigned long);
86typedef struct {
87 sctp_state_fn_t *fn;
88 const char *name;
89} sctp_sm_table_entry_t;
90
91/* A naming convention of "sctp_sf_xxx" applies to all the state functions
92 * currently in use.
93 */
94
95/* Prototypes for generic state functions. */
96sctp_state_fn_t sctp_sf_not_impl;
97sctp_state_fn_t sctp_sf_bug;
98
99/* Prototypes for gener timer state functions. */
100sctp_state_fn_t sctp_sf_timer_ignore;
101
102/* Prototypes for chunk state functions. */
103sctp_state_fn_t sctp_sf_do_9_1_abort;
104sctp_state_fn_t sctp_sf_cookie_wait_abort;
105sctp_state_fn_t sctp_sf_cookie_echoed_abort;
106sctp_state_fn_t sctp_sf_shutdown_pending_abort;
107sctp_state_fn_t sctp_sf_shutdown_sent_abort;
108sctp_state_fn_t sctp_sf_shutdown_ack_sent_abort;
109sctp_state_fn_t sctp_sf_do_5_1B_init;
110sctp_state_fn_t sctp_sf_do_5_1C_ack;
111sctp_state_fn_t sctp_sf_do_5_1D_ce;
112sctp_state_fn_t sctp_sf_do_5_1E_ca;
113sctp_state_fn_t sctp_sf_do_4_C;
114sctp_state_fn_t sctp_sf_eat_data_6_2;
115sctp_state_fn_t sctp_sf_eat_data_fast_4_4;
116sctp_state_fn_t sctp_sf_eat_sack_6_2;
117sctp_state_fn_t sctp_sf_tabort_8_4_8;
118sctp_state_fn_t sctp_sf_operr_notify;
119sctp_state_fn_t sctp_sf_t1_timer_expire;
120sctp_state_fn_t sctp_sf_t2_timer_expire;
121sctp_state_fn_t sctp_sf_t4_timer_expire;
122sctp_state_fn_t sctp_sf_t5_timer_expire;
123sctp_state_fn_t sctp_sf_sendbeat_8_3;
124sctp_state_fn_t sctp_sf_beat_8_3;
125sctp_state_fn_t sctp_sf_backbeat_8_3;
126sctp_state_fn_t sctp_sf_do_9_2_final;
127sctp_state_fn_t sctp_sf_do_9_2_shutdown;
128sctp_state_fn_t sctp_sf_do_ecn_cwr;
129sctp_state_fn_t sctp_sf_do_ecne;
130sctp_state_fn_t sctp_sf_ootb;
131sctp_state_fn_t sctp_sf_pdiscard;
132sctp_state_fn_t sctp_sf_violation;
133sctp_state_fn_t sctp_sf_violation_chunklen;
134sctp_state_fn_t sctp_sf_discard_chunk;
135sctp_state_fn_t sctp_sf_do_5_2_1_siminit;
136sctp_state_fn_t sctp_sf_do_5_2_2_dupinit;
137sctp_state_fn_t sctp_sf_do_5_2_4_dupcook;
138sctp_state_fn_t sctp_sf_unk_chunk;
139sctp_state_fn_t sctp_sf_do_8_5_1_E_sa;
140sctp_state_fn_t sctp_sf_cookie_echoed_err;
141sctp_state_fn_t sctp_sf_do_asconf;
142sctp_state_fn_t sctp_sf_do_asconf_ack;
143sctp_state_fn_t sctp_sf_do_9_2_reshutack;
144sctp_state_fn_t sctp_sf_eat_fwd_tsn;
145sctp_state_fn_t sctp_sf_eat_fwd_tsn_fast;
146
147/* Prototypes for primitive event state functions. */
148sctp_state_fn_t sctp_sf_do_prm_asoc;
149sctp_state_fn_t sctp_sf_do_prm_send;
150sctp_state_fn_t sctp_sf_do_9_2_prm_shutdown;
151sctp_state_fn_t sctp_sf_cookie_wait_prm_shutdown;
152sctp_state_fn_t sctp_sf_cookie_echoed_prm_shutdown;
153sctp_state_fn_t sctp_sf_do_9_1_prm_abort;
154sctp_state_fn_t sctp_sf_cookie_wait_prm_abort;
155sctp_state_fn_t sctp_sf_cookie_echoed_prm_abort;
156sctp_state_fn_t sctp_sf_shutdown_pending_prm_abort;
157sctp_state_fn_t sctp_sf_shutdown_sent_prm_abort;
158sctp_state_fn_t sctp_sf_shutdown_ack_sent_prm_abort;
159sctp_state_fn_t sctp_sf_error_closed;
160sctp_state_fn_t sctp_sf_error_shutdown;
161sctp_state_fn_t sctp_sf_ignore_primitive;
162sctp_state_fn_t sctp_sf_do_prm_requestheartbeat;
163sctp_state_fn_t sctp_sf_do_prm_asconf;
164
165/* Prototypes for other event state functions. */
166sctp_state_fn_t sctp_sf_do_9_2_start_shutdown;
167sctp_state_fn_t sctp_sf_do_9_2_shutdown_ack;
168sctp_state_fn_t sctp_sf_ignore_other;
169sctp_state_fn_t sctp_sf_cookie_wait_icmp_abort;
170
171/* Prototypes for timeout event state functions. */
172sctp_state_fn_t sctp_sf_do_6_3_3_rtx;
173sctp_state_fn_t sctp_sf_do_6_2_sack;
174sctp_state_fn_t sctp_sf_autoclose_timer_expire;
175
176/* Prototypes for utility support functions. */
177__u8 sctp_get_chunk_type(struct sctp_chunk *chunk);
178const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t,
179 sctp_state_t,
180 sctp_subtype_t);
181int sctp_chunk_iif(const struct sctp_chunk *);
182struct sctp_association *sctp_make_temp_asoc(const struct sctp_endpoint *,
183 struct sctp_chunk *,
184 int gfp);
185__u32 sctp_generate_verification_tag(void);
186void sctp_populate_tie_tags(__u8 *cookie, __u32 curTag, __u32 hisTag);
187
188/* Prototypes for chunk-building functions. */
189struct sctp_chunk *sctp_make_init(const struct sctp_association *,
190 const struct sctp_bind_addr *,
191 int gfp, int vparam_len);
192struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *,
193 const struct sctp_chunk *,
194 const int gfp,
195 const int unkparam_len);
196struct sctp_chunk *sctp_make_cookie_echo(const struct sctp_association *,
197 const struct sctp_chunk *);
198struct sctp_chunk *sctp_make_cookie_ack(const struct sctp_association *,
199 const struct sctp_chunk *);
200struct sctp_chunk *sctp_make_cwr(const struct sctp_association *,
201 const __u32 lowest_tsn,
202 const struct sctp_chunk *);
203struct sctp_chunk * sctp_make_datafrag_empty(struct sctp_association *,
204 const struct sctp_sndrcvinfo *sinfo,
205 int len, const __u8 flags,
206 __u16 ssn);
207struct sctp_chunk *sctp_make_ecne(const struct sctp_association *,
208 const __u32);
209struct sctp_chunk *sctp_make_sack(const struct sctp_association *);
210struct sctp_chunk *sctp_make_shutdown(const struct sctp_association *asoc,
211 const struct sctp_chunk *chunk);
212struct sctp_chunk *sctp_make_shutdown_ack(const struct sctp_association *asoc,
213 const struct sctp_chunk *);
214struct sctp_chunk *sctp_make_shutdown_complete(const struct sctp_association *,
215 const struct sctp_chunk *);
216void sctp_init_cause(struct sctp_chunk *, __u16 cause, const void *, size_t);
217struct sctp_chunk *sctp_make_abort(const struct sctp_association *,
218 const struct sctp_chunk *,
219 const size_t hint);
220struct sctp_chunk *sctp_make_abort_no_data(const struct sctp_association *,
221 const struct sctp_chunk *,
222 __u32 tsn);
223struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *,
224 const struct sctp_chunk *,
225 const struct msghdr *);
226struct sctp_chunk *sctp_make_abort_violation(const struct sctp_association *,
227 const struct sctp_chunk *,
228 const __u8 *,
229 const size_t );
230struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *,
231 const struct sctp_transport *,
232 const void *payload,
233 const size_t paylen);
234struct sctp_chunk *sctp_make_heartbeat_ack(const struct sctp_association *,
235 const struct sctp_chunk *,
236 const void *payload,
237 const size_t paylen);
238struct sctp_chunk *sctp_make_op_error(const struct sctp_association *,
239 const struct sctp_chunk *chunk,
240 __u16 cause_code,
241 const void *payload,
242 size_t paylen);
243
244struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *,
245 union sctp_addr *,
246 struct sockaddr *,
247 int, __u16);
248struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
249 union sctp_addr *addr);
250struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
251 struct sctp_chunk *asconf);
252int sctp_process_asconf_ack(struct sctp_association *asoc,
253 struct sctp_chunk *asconf_ack);
254struct sctp_chunk *sctp_make_fwdtsn(const struct sctp_association *asoc,
255 __u32 new_cum_tsn, size_t nstreams,
256 struct sctp_fwdtsn_skip *skiplist);
257
258void sctp_chunk_assign_tsn(struct sctp_chunk *);
259void sctp_chunk_assign_ssn(struct sctp_chunk *);
260
261void sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands, __u16 error);
262
263/* Prototypes for statetable processing. */
264
265int sctp_do_sm(sctp_event_t event_type, sctp_subtype_t subtype,
266 sctp_state_t state,
267 struct sctp_endpoint *,
268 struct sctp_association *asoc,
269 void *event_arg,
270 int gfp);
271
272/* 2nd level prototypes */
273void sctp_generate_t3_rtx_event(unsigned long peer);
274void sctp_generate_heartbeat_event(unsigned long peer);
275
276void sctp_ootb_pkt_free(struct sctp_packet *);
277
278struct sctp_association *sctp_unpack_cookie(const struct sctp_endpoint *,
279 const struct sctp_association *,
280 struct sctp_chunk *, int gfp, int *err,
281 struct sctp_chunk **err_chk_p);
282int sctp_addip_addr_config(struct sctp_association *, sctp_param_t,
283 struct sockaddr_storage*, int);
284
285/* 3rd level prototypes */
286__u32 sctp_generate_tag(const struct sctp_endpoint *);
287__u32 sctp_generate_tsn(const struct sctp_endpoint *);
288
289/* Extern declarations for major data structures. */
290extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
291
292
293/* Get the size of a DATA chunk payload. */
294static inline __u16 sctp_data_size(struct sctp_chunk *chunk)
295{
296 __u16 size;
297
298 size = ntohs(chunk->chunk_hdr->length);
299 size -= sizeof(sctp_data_chunk_t);
300
301 return size;
302}
303
304/* Compare two TSNs */
305
306/* RFC 1982 - Serial Number Arithmetic
307 *
308 * 2. Comparison
309 * Then, s1 is said to be equal to s2 if and only if i1 is equal to i2,
310 * in all other cases, s1 is not equal to s2.
311 *
312 * s1 is said to be less than s2 if, and only if, s1 is not equal to s2,
313 * and
314 *
315 * (i1 < i2 and i2 - i1 < 2^(SERIAL_BITS - 1)) or
316 * (i1 > i2 and i1 - i2 > 2^(SERIAL_BITS - 1))
317 *
318 * s1 is said to be greater than s2 if, and only if, s1 is not equal to
319 * s2, and
320 *
321 * (i1 < i2 and i2 - i1 > 2^(SERIAL_BITS - 1)) or
322 * (i1 > i2 and i1 - i2 < 2^(SERIAL_BITS - 1))
323 */
324
325/*
326 * RFC 2960
327 * 1.6 Serial Number Arithmetic
328 *
329 * Comparisons and arithmetic on TSNs in this document SHOULD use Serial
330 * Number Arithmetic as defined in [RFC1982] where SERIAL_BITS = 32.
331 */
332
333enum {
334 TSN_SIGN_BIT = (1<<31)
335};
336
337static inline int TSN_lt(__u32 s, __u32 t)
338{
339 return (((s) - (t)) & TSN_SIGN_BIT);
340}
341
342static inline int TSN_lte(__u32 s, __u32 t)
343{
344 return (((s) == (t)) || (((s) - (t)) & TSN_SIGN_BIT));
345}
346
347/* Compare two SSNs */
348
349/*
350 * RFC 2960
351 * 1.6 Serial Number Arithmetic
352 *
353 * Comparisons and arithmetic on Stream Sequence Numbers in this document
354 * SHOULD use Serial Number Arithmetic as defined in [RFC1982] where
355 * SERIAL_BITS = 16.
356 */
357enum {
358 SSN_SIGN_BIT = (1<<15)
359};
360
361static inline int SSN_lt(__u16 s, __u16 t)
362{
363 return (((s) - (t)) & SSN_SIGN_BIT);
364}
365
366static inline int SSN_lte(__u16 s, __u16 t)
367{
368 return (((s) == (t)) || (((s) - (t)) & SSN_SIGN_BIT));
369}
370
371/*
372 * ADDIP 3.1.1
373 * The valid range of Serial Number is from 0 to 4294967295 (2**32 - 1). Serial
374 * Numbers wrap back to 0 after reaching 4294967295.
375 */
376enum {
377 ADDIP_SERIAL_SIGN_BIT = (1<<31)
378};
379
380static inline int ADDIP_SERIAL_gte(__u16 s, __u16 t)
381{
382 return (((s) == (t)) || (((t) - (s)) & ADDIP_SERIAL_SIGN_BIT));
383}
384
385
386/* Run sctp_add_cmd() generating a BUG() if there is a failure. */
387static inline void sctp_add_cmd_sf(sctp_cmd_seq_t *seq, sctp_verb_t verb, sctp_arg_t obj)
388{
389 if (unlikely(!sctp_add_cmd(seq, verb, obj)))
390 BUG();
391}
392
393/* Check VTAG of the packet matches the sender's own tag. */
394static inline int
395sctp_vtag_verify(const struct sctp_chunk *chunk,
396 const struct sctp_association *asoc)
397{
398 /* RFC 2960 Sec 8.5 When receiving an SCTP packet, the endpoint
399 * MUST ensure that the value in the Verification Tag field of
400 * the received SCTP packet matches its own Tag. If the received
401 * Verification Tag value does not match the receiver's own
402 * tag value, the receiver shall silently discard the packet...
403 */
404 if (ntohl(chunk->sctp_hdr->vtag) == asoc->c.my_vtag)
405 return 1;
406
407 return 0;
408}
409
410/* Check VTAG of the packet matches the sender's own tag OR its peer's
411 * tag and the T bit is set in the Chunk Flags.
412 */
413static inline int
414sctp_vtag_verify_either(const struct sctp_chunk *chunk,
415 const struct sctp_association *asoc)
416{
417 /* RFC 2960 Section 8.5.1, sctpimpguide-06 Section 2.13.2
418 *
419 * B) The receiver of a ABORT shall accept the packet if the
420 * Verification Tag field of the packet matches its own tag OR it
421 * is set to its peer's tag and the T bit is set in the Chunk
422 * Flags. Otherwise, the receiver MUST silently discard the packet
423 * and take no further action.
424 *
425 * (C) The receiver of a SHUTDOWN COMPLETE shall accept the
426 * packet if the Verification Tag field of the packet
427 * matches its own tag OR it is set to its peer's tag and
428 * the T bit is set in the Chunk Flags. Otherwise, the
429 * receiver MUST silently discard the packet and take no
430 * further action....
431 *
432 */
433 if ((ntohl(chunk->sctp_hdr->vtag) == asoc->c.my_vtag) ||
434 (sctp_test_T_bit(chunk) && (ntohl(chunk->sctp_hdr->vtag)
435 == asoc->c.peer_vtag))) {
436 return 1;
437 }
438
439 return 0;
440}
441
442#endif /* __sctp_sm_h__ */
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
new file mode 100644
index 000000000000..7e64cf6bda1e
--- /dev/null
+++ b/include/net/sctp/structs.h
@@ -0,0 +1,1752 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
8 *
9 * The SCTP reference implementation is free software;
10 * you can redistribute it and/or modify it under the terms of
11 * the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * The SCTP reference implementation is distributed in the hope that it
16 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
17 * ************************
18 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 * See the GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with GNU CC; see the file COPYING. If not, write to
23 * the Free Software Foundation, 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
25 *
26 * Please send any bug reports or fixes you make to the
27 * email addresses:
28 * lksctp developers <lksctp-developers@lists.sourceforge.net>
29 *
30 * Or submit a bug report through the following website:
31 * http://www.sf.net/projects/lksctp
32 *
33 * Written or modified by:
34 * Randall Stewart <randall@sctp.chicago.il.us>
35 * Ken Morneau <kmorneau@cisco.com>
36 * Qiaobing Xie <qxie1@email.mot.com>
37 * La Monte H.P. Yarroll <piggy@acm.org>
38 * Karl Knutson <karl@athena.chicago.il.us>
39 * Jon Grimm <jgrimm@us.ibm.com>
40 * Xingang Guo <xingang.guo@intel.com>
41 * Hui Huang <hui.huang@nokia.com>
42 * Sridhar Samudrala <sri@us.ibm.com>
43 * Daisy Chang <daisyc@us.ibm.com>
44 * Dajiang Zhang <dajiang.zhang@nokia.com>
45 * Ardelle Fan <ardelle.fan@intel.com>
46 * Ryan Layer <rmlayer@us.ibm.com>
47 * Anup Pemmaiah <pemmaiah@cc.usu.edu>
48 * Kevin Gao <kevin.gao@intel.com>
49 *
50 * Any bugs reported given to us we will try to fix... any fixes shared will
51 * be incorporated into the next SCTP release.
52 */
53
54#ifndef __sctp_structs_h__
55#define __sctp_structs_h__
56
57#include <linux/time.h> /* We get struct timespec. */
58#include <linux/socket.h> /* linux/in.h needs this!! */
59#include <linux/in.h> /* We get struct sockaddr_in. */
60#include <linux/in6.h> /* We get struct in6_addr */
61#include <linux/ipv6.h>
62#include <asm/param.h> /* We get MAXHOSTNAMELEN. */
63#include <asm/atomic.h> /* This gets us atomic counters. */
64#include <linux/skbuff.h> /* We need sk_buff_head. */
65#include <linux/workqueue.h> /* We need tq_struct. */
66#include <linux/sctp.h> /* We need sctp* header structs. */
67
68/* A convenience structure for handling sockaddr structures.
69 * We should wean ourselves off this.
70 */
71union sctp_addr {
72 struct sockaddr_in v4;
73 struct sockaddr_in6 v6;
74 struct sockaddr sa;
75};
76
77/* Forward declarations for data structures. */
78struct sctp_globals;
79struct sctp_endpoint;
80struct sctp_association;
81struct sctp_transport;
82struct sctp_packet;
83struct sctp_chunk;
84struct sctp_inq;
85struct sctp_outq;
86struct sctp_bind_addr;
87struct sctp_ulpq;
88struct sctp_ep_common;
89struct sctp_ssnmap;
90
91
92#include <net/sctp/tsnmap.h>
93#include <net/sctp/ulpevent.h>
94#include <net/sctp/ulpqueue.h>
95
96/* Structures useful for managing bind/connect. */
97
98struct sctp_bind_bucket {
99 unsigned short port;
100 unsigned short fastreuse;
101 struct sctp_bind_bucket *next;
102 struct sctp_bind_bucket **pprev;
103 struct hlist_head owner;
104};
105
106struct sctp_bind_hashbucket {
107 spinlock_t lock;
108 struct sctp_bind_bucket *chain;
109};
110
111/* Used for hashing all associations. */
112struct sctp_hashbucket {
113 rwlock_t lock;
114 struct sctp_ep_common *chain;
115} __attribute__((__aligned__(8)));
116
117
118/* The SCTP globals structure. */
119extern struct sctp_globals {
120 /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values
121 *
122 * The following protocol parameters are RECOMMENDED:
123 *
124 * RTO.Initial - 3 seconds
125 * RTO.Min - 1 second
126 * RTO.Max - 60 seconds
127 * RTO.Alpha - 1/8 (3 when converted to right shifts.)
128 * RTO.Beta - 1/4 (2 when converted to right shifts.)
129 */
130 __u32 rto_initial;
131 __u32 rto_min;
132 __u32 rto_max;
133
134 /* Note: rto_alpha and rto_beta are really defined as inverse
135 * powers of two to facilitate integer operations.
136 */
137 int rto_alpha;
138 int rto_beta;
139
140 /* Max.Burst - 4 */
141 int max_burst;
142
143 /* Valid.Cookie.Life - 60 seconds */
144 int valid_cookie_life;
145
146 /* Whether Cookie Preservative is enabled(1) or not(0) */
147 int cookie_preserve_enable;
148
149 /* Association.Max.Retrans - 10 attempts
150 * Path.Max.Retrans - 5 attempts (per destination address)
151 * Max.Init.Retransmits - 8 attempts
152 */
153 int max_retrans_association;
154 int max_retrans_path;
155 int max_retrans_init;
156
157 /* HB.interval - 30 seconds */
158 int hb_interval;
159
160 /* The following variables are implementation specific. */
161
162 /* Default initialization values to be applied to new associations. */
163 __u16 max_instreams;
164 __u16 max_outstreams;
165
166 /* This is a list of groups of functions for each address
167 * family that we support.
168 */
169 struct list_head address_families;
170
171 /* This is the hash of all endpoints. */
172 int ep_hashsize;
173 struct sctp_hashbucket *ep_hashtable;
174
175 /* This is the hash of all associations. */
176 int assoc_hashsize;
177 struct sctp_hashbucket *assoc_hashtable;
178
179 /* This is the sctp port control hash. */
180 int port_hashsize;
181 int port_rover;
182 spinlock_t port_alloc_lock; /* Protects port_rover. */
183 struct sctp_bind_hashbucket *port_hashtable;
184
185 /* This is the global local address list.
186 * We actively maintain this complete list of interfaces on
187 * the system by catching routing events.
188 *
189 * It is a list of sctp_sockaddr_entry.
190 */
191 struct list_head local_addr_list;
192 spinlock_t local_addr_lock;
193
194 /* Flag to indicate if addip is enabled. */
195 int addip_enable;
196
197 /* Flag to indicate if PR-SCTP is enabled. */
198 int prsctp_enable;
199} sctp_globals;
200
201#define sctp_rto_initial (sctp_globals.rto_initial)
202#define sctp_rto_min (sctp_globals.rto_min)
203#define sctp_rto_max (sctp_globals.rto_max)
204#define sctp_rto_alpha (sctp_globals.rto_alpha)
205#define sctp_rto_beta (sctp_globals.rto_beta)
206#define sctp_max_burst (sctp_globals.max_burst)
207#define sctp_valid_cookie_life (sctp_globals.valid_cookie_life)
208#define sctp_cookie_preserve_enable (sctp_globals.cookie_preserve_enable)
209#define sctp_max_retrans_association (sctp_globals.max_retrans_association)
210#define sctp_max_retrans_path (sctp_globals.max_retrans_path)
211#define sctp_max_retrans_init (sctp_globals.max_retrans_init)
212#define sctp_hb_interval (sctp_globals.hb_interval)
213#define sctp_max_instreams (sctp_globals.max_instreams)
214#define sctp_max_outstreams (sctp_globals.max_outstreams)
215#define sctp_address_families (sctp_globals.address_families)
216#define sctp_ep_hashsize (sctp_globals.ep_hashsize)
217#define sctp_ep_hashtable (sctp_globals.ep_hashtable)
218#define sctp_assoc_hashsize (sctp_globals.assoc_hashsize)
219#define sctp_assoc_hashtable (sctp_globals.assoc_hashtable)
220#define sctp_port_hashsize (sctp_globals.port_hashsize)
221#define sctp_port_rover (sctp_globals.port_rover)
222#define sctp_port_alloc_lock (sctp_globals.port_alloc_lock)
223#define sctp_port_hashtable (sctp_globals.port_hashtable)
224#define sctp_local_addr_list (sctp_globals.local_addr_list)
225#define sctp_local_addr_lock (sctp_globals.local_addr_lock)
226#define sctp_addip_enable (sctp_globals.addip_enable)
227#define sctp_prsctp_enable (sctp_globals.prsctp_enable)
228
229/* SCTP Socket type: UDP or TCP style. */
230typedef enum {
231 SCTP_SOCKET_UDP = 0,
232 SCTP_SOCKET_UDP_HIGH_BANDWIDTH,
233 SCTP_SOCKET_TCP
234} sctp_socket_type_t;
235
236/* Per socket SCTP information. */
237struct sctp_sock {
238 /* inet_sock has to be the first member of sctp_sock */
239 struct inet_sock inet;
240 /* What kind of a socket is this? */
241 sctp_socket_type_t type;
242
243 /* PF_ family specific functions. */
244 struct sctp_pf *pf;
245
246 /* Access to HMAC transform. */
247 struct crypto_tfm *hmac;
248
249 /* What is our base endpointer? */
250 struct sctp_endpoint *ep;
251
252 struct sctp_bind_bucket *bind_hash;
253 /* Various Socket Options. */
254 __u16 default_stream;
255 __u32 default_ppid;
256 __u16 default_flags;
257 __u32 default_context;
258 __u32 default_timetolive;
259
260 struct sctp_initmsg initmsg;
261 struct sctp_rtoinfo rtoinfo;
262 struct sctp_paddrparams paddrparam;
263 struct sctp_event_subscribe subscribe;
264 struct sctp_assocparams assocparams;
265 int user_frag;
266 __u32 autoclose;
267 __u8 nodelay;
268 __u8 disable_fragments;
269 __u8 pd_mode;
270 __u8 v4mapped;
271 __u32 adaption_ind;
272
273 /* Receive to here while partial delivery is in effect. */
274 struct sk_buff_head pd_lobby;
275};
276
277static inline struct sctp_sock *sctp_sk(const struct sock *sk)
278{
279 return (struct sctp_sock *)sk;
280}
281
282static inline struct sock *sctp_opt2sk(const struct sctp_sock *sp)
283{
284 return (struct sock *)sp;
285}
286
287#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
288struct sctp6_sock {
289 struct sctp_sock sctp;
290 struct ipv6_pinfo inet6;
291};
292#endif /* CONFIG_IPV6 */
293
294
295/* This is our APPLICATION-SPECIFIC state cookie.
296 * THIS IS NOT DICTATED BY THE SPECIFICATION.
297 */
298/* These are the parts of an association which we send in the cookie.
299 * Most of these are straight out of:
300 * RFC2960 12.2 Parameters necessary per association (i.e. the TCB)
301 *
302 */
303
304struct sctp_cookie {
305
306 /* My : Tag expected in every inbound packet and sent
307 * Verification: in the INIT or INIT ACK chunk.
308 * Tag :
309 */
310 __u32 my_vtag;
311
312 /* Peer's : Tag expected in every outbound packet except
313 * Verification: in the INIT chunk.
314 * Tag :
315 */
316 __u32 peer_vtag;
317
318 /* The rest of these are not from the spec, but really need to
319 * be in the cookie.
320 */
321
322 /* My Tie Tag : Assist in discovering a restarting association. */
323 __u32 my_ttag;
324
325 /* Peer's Tie Tag: Assist in discovering a restarting association. */
326 __u32 peer_ttag;
327
328 /* When does this cookie expire? */
329 struct timeval expiration;
330
331 /* Number of inbound/outbound streams which are set
332 * and negotiated during the INIT process.
333 */
334 __u16 sinit_num_ostreams;
335 __u16 sinit_max_instreams;
336
337 /* This is the first sequence number I used. */
338 __u32 initial_tsn;
339
340 /* This holds the originating address of the INIT packet. */
341 union sctp_addr peer_addr;
342
343 /* IG Section 2.35.3
344 * Include the source port of the INIT-ACK
345 */
346 __u16 my_port;
347
348 __u8 prsctp_capable;
349
350 /* Padding for future use */
351 __u8 padding;
352
353 __u32 adaption_ind;
354
355
356 /* This is a shim for my peer's INIT packet, followed by
357 * a copy of the raw address list of the association.
358 * The length of the raw address list is saved in the
359 * raw_addr_list_len field, which will be used at the time when
360 * the association TCB is re-constructed from the cookie.
361 */
362 __u32 raw_addr_list_len;
363 struct sctp_init_chunk peer_init[0];
364};
365
366
367/* The format of our cookie that we send to our peer. */
368struct sctp_signed_cookie {
369 __u8 signature[SCTP_SECRET_SIZE];
370 struct sctp_cookie c;
371};
372
373/* This is another convenience type to allocate memory for address
374 * params for the maximum size and pass such structures around
375 * internally.
376 */
377union sctp_addr_param {
378 struct sctp_ipv4addr_param v4;
379 struct sctp_ipv6addr_param v6;
380};
381
382/* A convenience type to allow walking through the various
383 * parameters and avoid casting all over the place.
384 */
385union sctp_params {
386 void *v;
387 struct sctp_paramhdr *p;
388 struct sctp_cookie_preserve_param *life;
389 struct sctp_hostname_param *dns;
390 struct sctp_cookie_param *cookie;
391 struct sctp_supported_addrs_param *sat;
392 struct sctp_ipv4addr_param *v4;
393 struct sctp_ipv6addr_param *v6;
394 union sctp_addr_param *addr;
395 struct sctp_adaption_ind_param *aind;
396};
397
398/* RFC 2960. Section 3.3.5 Heartbeat.
399 * Heartbeat Information: variable length
400 * The Sender-specific Heartbeat Info field should normally include
401 * information about the sender's current time when this HEARTBEAT
402 * chunk is sent and the destination transport address to which this
403 * HEARTBEAT is sent (see Section 8.3).
404 */
405typedef struct sctp_sender_hb_info {
406 struct sctp_paramhdr param_hdr;
407 union sctp_addr daddr;
408 unsigned long sent_at;
409} __attribute__((packed)) sctp_sender_hb_info_t;
410
411/*
412 * RFC 2960 1.3.2 Sequenced Delivery within Streams
413 *
414 * The term "stream" is used in SCTP to refer to a sequence of user
415 * messages that are to be delivered to the upper-layer protocol in
416 * order with respect to other messages within the same stream. This is
417 * in contrast to its usage in TCP, where it refers to a sequence of
418 * bytes (in this document a byte is assumed to be eight bits).
419 * ...
420 *
421 * This is the structure we use to track both our outbound and inbound
422 * SSN, or Stream Sequence Numbers.
423 */
424
425struct sctp_stream {
426 __u16 *ssn;
427 unsigned int len;
428};
429
430struct sctp_ssnmap {
431 struct sctp_stream in;
432 struct sctp_stream out;
433 int malloced;
434};
435
436struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out, int gfp);
437void sctp_ssnmap_free(struct sctp_ssnmap *map);
438void sctp_ssnmap_clear(struct sctp_ssnmap *map);
439
440/* What is the current SSN number for this stream? */
441static inline __u16 sctp_ssn_peek(struct sctp_stream *stream, __u16 id)
442{
443 return stream->ssn[id];
444}
445
446/* Return the next SSN number for this stream. */
447static inline __u16 sctp_ssn_next(struct sctp_stream *stream, __u16 id)
448{
449 return stream->ssn[id]++;
450}
451
452/* Skip over this ssn and all below. */
453static inline void sctp_ssn_skip(struct sctp_stream *stream, __u16 id,
454 __u16 ssn)
455{
456 stream->ssn[id] = ssn+1;
457}
458
459/*
460 * Pointers to address related SCTP functions.
461 * (i.e. things that depend on the address family.)
462 */
463struct sctp_af {
464 int (*sctp_xmit) (struct sk_buff *skb,
465 struct sctp_transport *,
466 int ipfragok);
467 int (*setsockopt) (struct sock *sk,
468 int level,
469 int optname,
470 char __user *optval,
471 int optlen);
472 int (*getsockopt) (struct sock *sk,
473 int level,
474 int optname,
475 char __user *optval,
476 int __user *optlen);
477 struct dst_entry *(*get_dst) (struct sctp_association *asoc,
478 union sctp_addr *daddr,
479 union sctp_addr *saddr);
480 void (*get_saddr) (struct sctp_association *asoc,
481 struct dst_entry *dst,
482 union sctp_addr *daddr,
483 union sctp_addr *saddr);
484 void (*copy_addrlist) (struct list_head *,
485 struct net_device *);
486 void (*dst_saddr) (union sctp_addr *saddr,
487 struct dst_entry *dst,
488 unsigned short port);
489 int (*cmp_addr) (const union sctp_addr *addr1,
490 const union sctp_addr *addr2);
491 void (*addr_copy) (union sctp_addr *dst,
492 union sctp_addr *src);
493 void (*from_skb) (union sctp_addr *,
494 struct sk_buff *skb,
495 int saddr);
496 void (*from_sk) (union sctp_addr *,
497 struct sock *sk);
498 void (*to_sk_saddr) (union sctp_addr *,
499 struct sock *sk);
500 void (*to_sk_daddr) (union sctp_addr *,
501 struct sock *sk);
502 void (*from_addr_param) (union sctp_addr *,
503 union sctp_addr_param *,
504 __u16 port, int iif);
505 int (*to_addr_param) (const union sctp_addr *,
506 union sctp_addr_param *);
507 int (*addr_valid) (union sctp_addr *,
508 struct sctp_sock *);
509 sctp_scope_t (*scope) (union sctp_addr *);
510 void (*inaddr_any) (union sctp_addr *, unsigned short);
511 int (*is_any) (const union sctp_addr *);
512 int (*available) (union sctp_addr *,
513 struct sctp_sock *);
514 int (*skb_iif) (const struct sk_buff *sk);
515 int (*is_ce) (const struct sk_buff *sk);
516 void (*seq_dump_addr)(struct seq_file *seq,
517 union sctp_addr *addr);
518 __u16 net_header_len;
519 int sockaddr_len;
520 sa_family_t sa_family;
521 struct list_head list;
522};
523
524struct sctp_af *sctp_get_af_specific(sa_family_t);
525int sctp_register_af(struct sctp_af *);
526
527/* Protocol family functions. */
528struct sctp_pf {
529 void (*event_msgname)(struct sctp_ulpevent *, char *, int *);
530 void (*skb_msgname) (struct sk_buff *, char *, int *);
531 int (*af_supported) (sa_family_t, struct sctp_sock *);
532 int (*cmp_addr) (const union sctp_addr *,
533 const union sctp_addr *,
534 struct sctp_sock *);
535 int (*bind_verify) (struct sctp_sock *, union sctp_addr *);
536 int (*send_verify) (struct sctp_sock *, union sctp_addr *);
537 int (*supported_addrs)(const struct sctp_sock *, __u16 *);
538 struct sock *(*create_accept_sk) (struct sock *sk,
539 struct sctp_association *asoc);
540 void (*addr_v4map) (struct sctp_sock *, union sctp_addr *);
541 struct sctp_af *af;
542};
543
544
545/* Structure to track chunk fragments that have been acked, but peer
546 * fragments of the same message have not.
547 */
548struct sctp_datamsg {
549 /* Chunks waiting to be submitted to lower layer. */
550 struct list_head chunks;
551 /* Chunks that have been transmitted. */
552 struct list_head track;
553 /* Reference counting. */
554 atomic_t refcnt;
555 /* When is this message no longer interesting to the peer? */
556 unsigned long expires_at;
557 /* Did the messenge fail to send? */
558 int send_error;
559 char send_failed;
560 /* Control whether chunks from this message can be abandoned. */
561 char can_abandon;
562};
563
564struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *,
565 struct sctp_sndrcvinfo *,
566 struct msghdr *, int len);
567void sctp_datamsg_put(struct sctp_datamsg *);
568void sctp_datamsg_free(struct sctp_datamsg *);
569void sctp_datamsg_track(struct sctp_chunk *);
570void sctp_chunk_fail(struct sctp_chunk *, int error);
571int sctp_chunk_abandoned(struct sctp_chunk *);
572
573
574/* RFC2960 1.4 Key Terms
575 *
576 * o Chunk: A unit of information within an SCTP packet, consisting of
577 * a chunk header and chunk-specific content.
578 *
579 * As a matter of convenience, we remember the SCTP common header for
580 * each chunk as well as a few other header pointers...
581 */
582struct sctp_chunk {
583 /* These first three elements MUST PRECISELY match the first
584 * three elements of struct sk_buff. This allows us to reuse
585 * all the skb_* queue management functions.
586 */
587 struct sctp_chunk *next;
588 struct sctp_chunk *prev;
589 struct sk_buff_head *list;
590 atomic_t refcnt;
591
592 /* This is our link to the per-transport transmitted list. */
593 struct list_head transmitted_list;
594
595 /* This field is used by chunks that hold fragmented data.
596 * For the first fragment this is the list that holds the rest of
597 * fragments. For the remaining fragments, this is the link to the
598 * frag_list maintained in the first fragment.
599 */
600 struct list_head frag_list;
601
602 /* This points to the sk_buff containing the actual data. */
603 struct sk_buff *skb;
604
605 /* These are the SCTP headers by reverse order in a packet.
606 * Note that some of these may happen more than once. In that
607 * case, we point at the "current" one, whatever that means
608 * for that level of header.
609 */
610
611 /* We point this at the FIRST TLV parameter to chunk_hdr. */
612 union sctp_params param_hdr;
613 union {
614 __u8 *v;
615 struct sctp_datahdr *data_hdr;
616 struct sctp_inithdr *init_hdr;
617 struct sctp_sackhdr *sack_hdr;
618 struct sctp_heartbeathdr *hb_hdr;
619 struct sctp_sender_hb_info *hbs_hdr;
620 struct sctp_shutdownhdr *shutdown_hdr;
621 struct sctp_signed_cookie *cookie_hdr;
622 struct sctp_ecnehdr *ecne_hdr;
623 struct sctp_cwrhdr *ecn_cwr_hdr;
624 struct sctp_errhdr *err_hdr;
625 struct sctp_addiphdr *addip_hdr;
626 struct sctp_fwdtsn_hdr *fwdtsn_hdr;
627 } subh;
628
629 __u8 *chunk_end;
630
631 struct sctp_chunkhdr *chunk_hdr;
632 struct sctphdr *sctp_hdr;
633
634 /* This needs to be recoverable for SCTP_SEND_FAILED events. */
635 struct sctp_sndrcvinfo sinfo;
636
637 /* Which association does this belong to? */
638 struct sctp_association *asoc;
639
640 /* What endpoint received this chunk? */
641 struct sctp_ep_common *rcvr;
642
643 /* We fill this in if we are calculating RTT. */
644 unsigned long sent_at;
645
646 /* What is the origin IP address for this chunk? */
647 union sctp_addr source;
648 /* Destination address for this chunk. */
649 union sctp_addr dest;
650
651 /* For outbound message, track all fragments for SEND_FAILED. */
652 struct sctp_datamsg *msg;
653
654 /* For an inbound chunk, this tells us where it came from.
655 * For an outbound chunk, it tells us where we'd like it to
656 * go. It is NULL if we have no preference.
657 */
658 struct sctp_transport *transport;
659
660 __u8 rtt_in_progress; /* Is this chunk used for RTT calculation? */
661 __u8 resent; /* Has this chunk ever been retransmitted. */
662 __u8 has_tsn; /* Does this chunk have a TSN yet? */
663 __u8 has_ssn; /* Does this chunk have a SSN yet? */
664 __u8 singleton; /* Was this the only chunk in the packet? */
665 __u8 end_of_packet; /* Was this the last chunk in the packet? */
666 __u8 ecn_ce_done; /* Have we processed the ECN CE bit? */
667 __u8 pdiscard; /* Discard the whole packet now? */
668 __u8 tsn_gap_acked; /* Is this chunk acked by a GAP ACK? */
669 __u8 fast_retransmit; /* Is this chunk fast retransmitted? */
670 __u8 tsn_missing_report; /* Data chunk missing counter. */
671};
672
673void sctp_chunk_hold(struct sctp_chunk *);
674void sctp_chunk_put(struct sctp_chunk *);
675int sctp_user_addto_chunk(struct sctp_chunk *chunk, int off, int len,
676 struct iovec *data);
677void sctp_chunk_free(struct sctp_chunk *);
678void *sctp_addto_chunk(struct sctp_chunk *, int len, const void *data);
679struct sctp_chunk *sctp_chunkify(struct sk_buff *,
680 const struct sctp_association *,
681 struct sock *);
682void sctp_init_addrs(struct sctp_chunk *, union sctp_addr *,
683 union sctp_addr *);
684const union sctp_addr *sctp_source(const struct sctp_chunk *chunk);
685
686/* This is a structure for holding either an IPv6 or an IPv4 address. */
687/* sin_family -- AF_INET or AF_INET6
688 * sin_port -- ordinary port number
689 * sin_addr -- cast to either (struct in_addr) or (struct in6_addr)
690 */
691struct sctp_sockaddr_entry {
692 struct list_head list;
693 union sctp_addr a;
694};
695
696typedef struct sctp_chunk *(sctp_packet_phandler_t)(struct sctp_association *);
697
698/* This structure holds lists of chunks as we are assembling for
699 * transmission.
700 */
701struct sctp_packet {
702 /* These are the SCTP header values (host order) for the packet. */
703 __u16 source_port;
704 __u16 destination_port;
705 __u32 vtag;
706
707 /* This contains the payload chunks. */
708 struct sk_buff_head chunks;
709
710 /* This is the overhead of the sctp and ip headers. */
711 size_t overhead;
712 /* This is the total size of all chunks INCLUDING padding. */
713 size_t size;
714
715 /* The packet is destined for this transport address.
716 * The function we finally use to pass down to the next lower
717 * layer lives in the transport structure.
718 */
719 struct sctp_transport *transport;
720
721 /* This packet contains a COOKIE-ECHO chunk. */
722 char has_cookie_echo;
723
724 /* This packet containsa SACK chunk. */
725 char has_sack;
726
727 /* SCTP cannot fragment this packet. So let ip fragment it. */
728 char ipfragok;
729
730 int malloced;
731};
732
733struct sctp_packet *sctp_packet_init(struct sctp_packet *,
734 struct sctp_transport *,
735 __u16 sport, __u16 dport);
736struct sctp_packet *sctp_packet_config(struct sctp_packet *, __u32 vtag, int);
737sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *,
738 struct sctp_chunk *);
739sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *,
740 struct sctp_chunk *);
741int sctp_packet_transmit(struct sctp_packet *);
742void sctp_packet_free(struct sctp_packet *);
743
744static inline int sctp_packet_empty(struct sctp_packet *packet)
745{
746 return (packet->size == packet->overhead);
747}
748
749/* This represents a remote transport address.
750 * For local transport addresses, we just use union sctp_addr.
751 *
752 * RFC2960 Section 1.4 Key Terms
753 *
754 * o Transport address: A Transport Address is traditionally defined
755 * by Network Layer address, Transport Layer protocol and Transport
756 * Layer port number. In the case of SCTP running over IP, a
757 * transport address is defined by the combination of an IP address
758 * and an SCTP port number (where SCTP is the Transport protocol).
759 *
760 * RFC2960 Section 7.1 SCTP Differences from TCP Congestion control
761 *
762 * o The sender keeps a separate congestion control parameter set for
763 * each of the destination addresses it can send to (not each
764 * source-destination pair but for each destination). The parameters
765 * should decay if the address is not used for a long enough time
766 * period.
767 *
768 */
769struct sctp_transport {
770 /* A list of transports. */
771 struct list_head transports;
772
773 /* Reference counting. */
774 atomic_t refcnt;
775 int dead;
776
777 /* This is the peer's IP address and port. */
778 union sctp_addr ipaddr;
779
780 /* These are the functions we call to handle LLP stuff. */
781 struct sctp_af *af_specific;
782
783 /* Which association do we belong to? */
784 struct sctp_association *asoc;
785
786 /* RFC2960
787 *
788 * 12.3 Per Transport Address Data
789 *
790 * For each destination transport address in the peer's
791 * address list derived from the INIT or INIT ACK chunk, a
792 * number of data elements needs to be maintained including:
793 */
794 __u32 rtt; /* This is the most recent RTT. */
795
796 /* RTO : The current retransmission timeout value. */
797 __u32 rto;
798
799 /* RTTVAR : The current RTT variation. */
800 __u32 rttvar;
801
802 /* SRTT : The current smoothed round trip time. */
803 __u32 srtt;
804
805 /* RTO-Pending : A flag used to track if one of the DATA
806 * chunks sent to this address is currently being
807 * used to compute a RTT. If this flag is 0,
808 * the next DATA chunk sent to this destination
809 * should be used to compute a RTT and this flag
810 * should be set. Every time the RTT
811 * calculation completes (i.e. the DATA chunk
812 * is SACK'd) clear this flag.
813 */
814 int rto_pending;
815
816 /*
817 * These are the congestion stats.
818 */
819 /* cwnd : The current congestion window. */
820 __u32 cwnd; /* This is the actual cwnd. */
821
822 /* ssthresh : The current slow start threshold value. */
823 __u32 ssthresh;
824
825 /* partial : The tracking method for increase of cwnd when in
826 * bytes acked : congestion avoidance mode (see Section 6.2.2)
827 */
828 __u32 partial_bytes_acked;
829
830 /* Data that has been sent, but not acknowledged. */
831 __u32 flight_size;
832
833 /* PMTU : The current known path MTU. */
834 __u32 pmtu;
835
836 /* Destination */
837 struct dst_entry *dst;
838 /* Source address. */
839 union sctp_addr saddr;
840
841 /* When was the last time(in jiffies) that a data packet was sent on
842 * this transport? This is used to adjust the cwnd when the transport
843 * becomes inactive.
844 */
845 unsigned long last_time_used;
846
847 /* Heartbeat interval: The endpoint sends out a Heartbeat chunk to
848 * the destination address every heartbeat interval.
849 */
850 int hb_interval;
851
852 /* When was the last time (in jiffies) that we heard from this
853 * transport? We use this to pick new active and retran paths.
854 */
855 unsigned long last_time_heard;
856
857 /* Last time(in jiffies) when cwnd is reduced due to the congestion
858 * indication based on ECNE chunk.
859 */
860 unsigned long last_time_ecne_reduced;
861
862 /* active : The current active state of this destination,
863 * : i.e. DOWN, UP, etc.
864 */
865 int active;
866
867 /* hb_allowed : The current heartbeat state of this destination,
868 * : i.e. ALLOW-HB, NO-HEARTBEAT, etc.
869 */
870 int hb_allowed;
871
872 /* These are the error stats for this destination. */
873
874 /* Error count : The current error count for this destination. */
875 unsigned short error_count;
876
877 /* This is the max_retrans value for the transport and will
878 * be initialized to proto.max_retrans.path. This can be changed
879 * using SCTP_SET_PEER_ADDR_PARAMS socket option.
880 */
881 int max_retrans;
882
883 /* Per : A timer used by each destination.
884 * Destination :
885 * Timer :
886 *
887 * [Everywhere else in the text this is called T3-rtx. -ed]
888 */
889 struct timer_list T3_rtx_timer;
890
891 /* Heartbeat timer is per destination. */
892 struct timer_list hb_timer;
893
894 /* Since we're using per-destination retransmission timers
895 * (see above), we're also using per-destination "transmitted"
896 * queues. This probably ought to be a private struct
897 * accessible only within the outqueue, but it's not, yet.
898 */
899 struct list_head transmitted;
900
901 /* We build bundle-able packets for this transport here. */
902 struct sctp_packet packet;
903
904 /* This is the list of transports that have chunks to send. */
905 struct list_head send_ready;
906
907 int malloced; /* Is this structure kfree()able? */
908
909 /* State information saved for SFR_CACC algorithm. The key
910 * idea in SFR_CACC is to maintain state at the sender on a
911 * per-destination basis when a changeover happens.
912 * char changeover_active;
913 * char cycling_changeover;
914 * __u32 next_tsn_at_change;
915 * char cacc_saw_newack;
916 */
917 struct {
918 /* An unsigned integer, which stores the next TSN to be
919 * used by the sender, at the moment of changeover.
920 */
921 __u32 next_tsn_at_change;
922
923 /* A flag which indicates the occurrence of a changeover */
924 char changeover_active;
925
926 /* A flag which indicates whether the change of primary is
927 * the first switch to this destination address during an
928 * active switch.
929 */
930 char cycling_changeover;
931
932 /* A temporary flag, which is used during the processing of
933 * a SACK to estimate the causative TSN(s)'s group.
934 */
935 char cacc_saw_newack;
936 } cacc;
937};
938
939struct sctp_transport *sctp_transport_new(const union sctp_addr *, int);
940void sctp_transport_set_owner(struct sctp_transport *,
941 struct sctp_association *);
942void sctp_transport_route(struct sctp_transport *, union sctp_addr *,
943 struct sctp_sock *);
944void sctp_transport_pmtu(struct sctp_transport *);
945void sctp_transport_free(struct sctp_transport *);
946void sctp_transport_reset_timers(struct sctp_transport *);
947void sctp_transport_hold(struct sctp_transport *);
948void sctp_transport_put(struct sctp_transport *);
949void sctp_transport_update_rto(struct sctp_transport *, __u32);
950void sctp_transport_raise_cwnd(struct sctp_transport *, __u32, __u32);
951void sctp_transport_lower_cwnd(struct sctp_transport *, sctp_lower_cwnd_t);
952unsigned long sctp_transport_timeout(struct sctp_transport *);
953
954
955/* This is the structure we use to queue packets as they come into
956 * SCTP. We write packets to it and read chunks from it.
957 */
958struct sctp_inq {
959 /* This is actually a queue of sctp_chunk each
960 * containing a partially decoded packet.
961 */
962 struct sk_buff_head in;
963 /* This is the packet which is currently off the in queue and is
964 * being worked on through the inbound chunk processing.
965 */
966 struct sctp_chunk *in_progress;
967
968 /* This is the delayed task to finish delivering inbound
969 * messages.
970 */
971 struct work_struct immediate;
972
973 int malloced; /* Is this structure kfree()able? */
974};
975
976void sctp_inq_init(struct sctp_inq *);
977void sctp_inq_free(struct sctp_inq *);
978void sctp_inq_push(struct sctp_inq *, struct sctp_chunk *packet);
979struct sctp_chunk *sctp_inq_pop(struct sctp_inq *);
980void sctp_inq_set_th_handler(struct sctp_inq *, void (*)(void *), void *);
981
982/* This is the structure we use to hold outbound chunks. You push
983 * chunks in and they automatically pop out the other end as bundled
984 * packets (it calls (*output_handler)()).
985 *
986 * This structure covers sections 6.3, 6.4, 6.7, 6.8, 6.10, 7., 8.1,
987 * and 8.2 of the v13 draft.
988 *
989 * It handles retransmissions. The connection to the timeout portion
990 * of the state machine is through sctp_..._timeout() and timeout_handler.
991 *
992 * If you feed it SACKs, it will eat them.
993 *
994 * If you give it big chunks, it will fragment them.
995 *
996 * It assigns TSN's to data chunks. This happens at the last possible
997 * instant before transmission.
998 *
999 * When free()'d, it empties itself out via output_handler().
1000 */
1001struct sctp_outq {
1002 struct sctp_association *asoc;
1003
1004 /* Data pending that has never been transmitted. */
1005 struct sk_buff_head out;
1006
1007 unsigned out_qlen; /* Total length of queued data chunks. */
1008
1009 /* Error of send failed, may used in SCTP_SEND_FAILED event. */
1010 unsigned error;
1011
1012 /* These are control chunks we want to send. */
1013 struct sk_buff_head control;
1014
1015 /* These are chunks that have been sacked but are above the
1016 * CTSN, or cumulative tsn ack point.
1017 */
1018 struct list_head sacked;
1019
1020 /* Put chunks on this list to schedule them for
1021 * retransmission.
1022 */
1023 struct list_head retransmit;
1024
1025 /* Put chunks on this list to save them for FWD TSN processing as
1026 * they were abandoned.
1027 */
1028 struct list_head abandoned;
1029
1030 /* How many unackd bytes do we have in-flight? */
1031 __u32 outstanding_bytes;
1032
1033 /* Corked? */
1034 char cork;
1035
1036 /* Is this structure empty? */
1037 char empty;
1038
1039 /* Are we kfree()able? */
1040 char malloced;
1041};
1042
1043void sctp_outq_init(struct sctp_association *, struct sctp_outq *);
1044void sctp_outq_teardown(struct sctp_outq *);
1045void sctp_outq_free(struct sctp_outq*);
1046int sctp_outq_tail(struct sctp_outq *, struct sctp_chunk *chunk);
1047int sctp_outq_flush(struct sctp_outq *, int);
1048int sctp_outq_sack(struct sctp_outq *, struct sctp_sackhdr *);
1049int sctp_outq_is_empty(const struct sctp_outq *);
1050void sctp_outq_restart(struct sctp_outq *);
1051
1052void sctp_retransmit(struct sctp_outq *, struct sctp_transport *,
1053 sctp_retransmit_reason_t);
1054void sctp_retransmit_mark(struct sctp_outq *, struct sctp_transport *, __u8);
1055int sctp_outq_uncork(struct sctp_outq *);
1056/* Uncork and flush an outqueue. */
1057static inline void sctp_outq_cork(struct sctp_outq *q)
1058{
1059 q->cork = 1;
1060}
1061
1062/* These bind address data fields common between endpoints and associations */
1063struct sctp_bind_addr {
1064
1065 /* RFC 2960 12.1 Parameters necessary for the SCTP instance
1066 *
1067 * SCTP Port: The local SCTP port number the endpoint is
1068 * bound to.
1069 */
1070 __u16 port;
1071
1072 /* RFC 2960 12.1 Parameters necessary for the SCTP instance
1073 *
1074 * Address List: The list of IP addresses that this instance
1075 * has bound. This information is passed to one's
1076 * peer(s) in INIT and INIT ACK chunks.
1077 */
1078 struct list_head address_list;
1079
1080 int malloced; /* Are we kfree()able? */
1081};
1082
1083void sctp_bind_addr_init(struct sctp_bind_addr *, __u16 port);
1084void sctp_bind_addr_free(struct sctp_bind_addr *);
1085int sctp_bind_addr_copy(struct sctp_bind_addr *dest,
1086 const struct sctp_bind_addr *src,
1087 sctp_scope_t scope, int gfp,int flags);
1088int sctp_add_bind_addr(struct sctp_bind_addr *, union sctp_addr *,
1089 int gfp);
1090int sctp_del_bind_addr(struct sctp_bind_addr *, union sctp_addr *);
1091int sctp_bind_addr_match(struct sctp_bind_addr *, const union sctp_addr *,
1092 struct sctp_sock *);
1093union sctp_addr *sctp_find_unmatch_addr(struct sctp_bind_addr *bp,
1094 const union sctp_addr *addrs,
1095 int addrcnt,
1096 struct sctp_sock *opt);
1097union sctp_params sctp_bind_addrs_to_raw(const struct sctp_bind_addr *bp,
1098 int *addrs_len, int gfp);
1099int sctp_raw_to_bind_addrs(struct sctp_bind_addr *bp, __u8 *raw, int len,
1100 __u16 port, int gfp);
1101
1102sctp_scope_t sctp_scope(const union sctp_addr *);
1103int sctp_in_scope(const union sctp_addr *addr, const sctp_scope_t scope);
1104int sctp_is_any(const union sctp_addr *addr);
1105int sctp_addr_is_valid(const union sctp_addr *addr);
1106
1107
1108/* What type of endpoint? */
1109typedef enum {
1110 SCTP_EP_TYPE_SOCKET,
1111 SCTP_EP_TYPE_ASSOCIATION,
1112} sctp_endpoint_type_t;
1113
1114/*
1115 * A common base class to bridge the implmentation view of a
1116 * socket (usually listening) endpoint versus an association's
1117 * local endpoint.
1118 * This common structure is useful for several purposes:
1119 * 1) Common interface for lookup routines.
1120 * a) Subfunctions work for either endpoint or association
1121 * b) Single interface to lookup allows hiding the lookup lock rather
1122 * than acquiring it externally.
1123 * 2) Common interface for the inbound chunk handling/state machine.
1124 * 3) Common object handling routines for reference counting, etc.
1125 * 4) Disentangle association lookup from endpoint lookup, where we
1126 * do not have to find our endpoint to find our association.
1127 *
1128 */
1129
1130struct sctp_ep_common {
1131 /* Fields to help us manage our entries in the hash tables. */
1132 struct sctp_ep_common *next;
1133 struct sctp_ep_common **pprev;
1134 int hashent;
1135
1136 /* Runtime type information. What kind of endpoint is this? */
1137 sctp_endpoint_type_t type;
1138
1139 /* Some fields to help us manage this object.
1140 * refcnt - Reference count access to this object.
1141 * dead - Do not attempt to use this object.
1142 * malloced - Do we need to kfree this object?
1143 */
1144 atomic_t refcnt;
1145 char dead;
1146 char malloced;
1147
1148 /* What socket does this endpoint belong to? */
1149 struct sock *sk;
1150
1151 /* This is where we receive inbound chunks. */
1152 struct sctp_inq inqueue;
1153
1154 /* This substructure includes the defining parameters of the
1155 * endpoint:
1156 * bind_addr.port is our shared port number.
1157 * bind_addr.address_list is our set of local IP addresses.
1158 */
1159 struct sctp_bind_addr bind_addr;
1160
1161 /* Protection during address list comparisons. */
1162 rwlock_t addr_lock;
1163};
1164
1165
1166/* RFC Section 1.4 Key Terms
1167 *
1168 * o SCTP endpoint: The logical sender/receiver of SCTP packets. On a
1169 * multi-homed host, an SCTP endpoint is represented to its peers as a
1170 * combination of a set of eligible destination transport addresses to
1171 * which SCTP packets can be sent and a set of eligible source
1172 * transport addresses from which SCTP packets can be received.
1173 * All transport addresses used by an SCTP endpoint must use the
1174 * same port number, but can use multiple IP addresses. A transport
1175 * address used by an SCTP endpoint must not be used by another
1176 * SCTP endpoint. In other words, a transport address is unique
1177 * to an SCTP endpoint.
1178 *
1179 * From an implementation perspective, each socket has one of these.
1180 * A TCP-style socket will have exactly one association on one of
1181 * these. An UDP-style socket will have multiple associations hanging
1182 * off one of these.
1183 */
1184
1185struct sctp_endpoint {
1186 /* Common substructure for endpoint and association. */
1187 struct sctp_ep_common base;
1188
1189 /* Associations: A list of current associations and mappings
1190 * to the data consumers for each association. This
1191 * may be in the form of a hash table or other
1192 * implementation dependent structure. The data
1193 * consumers may be process identification
1194 * information such as file descriptors, named pipe
1195 * pointer, or table pointers dependent on how SCTP
1196 * is implemented.
1197 */
1198 /* This is really a list of struct sctp_association entries. */
1199 struct list_head asocs;
1200
1201 /* Secret Key: A secret key used by this endpoint to compute
1202 * the MAC. This SHOULD be a cryptographic quality
1203 * random number with a sufficient length.
1204 * Discussion in [RFC1750] can be helpful in
1205 * selection of the key.
1206 */
1207 __u8 secret_key[SCTP_HOW_MANY_SECRETS][SCTP_SECRET_SIZE];
1208 int current_key;
1209 int last_key;
1210 int key_changed_at;
1211
1212 /* Default timeouts. */
1213 int timeouts[SCTP_NUM_TIMEOUT_TYPES];
1214
1215 /* Various thresholds. */
1216
1217 /* Name for debugging output... */
1218 char *debug_name;
1219};
1220
1221/* Recover the outter endpoint structure. */
1222static inline struct sctp_endpoint *sctp_ep(struct sctp_ep_common *base)
1223{
1224 struct sctp_endpoint *ep;
1225
1226 ep = container_of(base, struct sctp_endpoint, base);
1227 return ep;
1228}
1229
1230/* These are function signatures for manipulating endpoints. */
1231struct sctp_endpoint *sctp_endpoint_new(struct sock *, int);
1232void sctp_endpoint_free(struct sctp_endpoint *);
1233void sctp_endpoint_put(struct sctp_endpoint *);
1234void sctp_endpoint_hold(struct sctp_endpoint *);
1235void sctp_endpoint_add_asoc(struct sctp_endpoint *, struct sctp_association *);
1236struct sctp_association *sctp_endpoint_lookup_assoc(
1237 const struct sctp_endpoint *ep,
1238 const union sctp_addr *paddr,
1239 struct sctp_transport **);
1240int sctp_endpoint_is_peeled_off(struct sctp_endpoint *,
1241 const union sctp_addr *);
1242struct sctp_endpoint *sctp_endpoint_is_match(struct sctp_endpoint *,
1243 const union sctp_addr *);
1244int sctp_has_association(const union sctp_addr *laddr,
1245 const union sctp_addr *paddr);
1246
1247int sctp_verify_init(const struct sctp_association *asoc, sctp_cid_t,
1248 sctp_init_chunk_t *peer_init, struct sctp_chunk *chunk,
1249 struct sctp_chunk **err_chunk);
1250int sctp_process_init(struct sctp_association *, sctp_cid_t cid,
1251 const union sctp_addr *peer,
1252 sctp_init_chunk_t *init, int gfp);
1253__u32 sctp_generate_tag(const struct sctp_endpoint *);
1254__u32 sctp_generate_tsn(const struct sctp_endpoint *);
1255
1256
1257/* RFC2960
1258 *
1259 * 12. Recommended Transmission Control Block (TCB) Parameters
1260 *
1261 * This section details a recommended set of parameters that should
1262 * be contained within the TCB for an implementation. This section is
1263 * for illustrative purposes and should not be deemed as requirements
1264 * on an implementation or as an exhaustive list of all parameters
1265 * inside an SCTP TCB. Each implementation may need its own additional
1266 * parameters for optimization.
1267 */
1268
1269
1270/* Here we have information about each individual association. */
1271struct sctp_association {
1272
1273 /* A base structure common to endpoint and association.
1274 * In this context, it represents the associations's view
1275 * of the local endpoint of the association.
1276 */
1277 struct sctp_ep_common base;
1278
1279 /* Associations on the same socket. */
1280 struct list_head asocs;
1281
1282 /* association id. */
1283 sctp_assoc_t assoc_id;
1284
1285 /* This is our parent endpoint. */
1286 struct sctp_endpoint *ep;
1287
1288 /* These are those association elements needed in the cookie. */
1289 struct sctp_cookie c;
1290
1291 /* This is all information about our peer. */
1292 struct {
1293 /* rwnd
1294 *
1295 * Peer Rwnd : Current calculated value of the peer's rwnd.
1296 */
1297 __u32 rwnd;
1298
1299 /* transport_addr_list
1300 *
1301 * Peer : A list of SCTP transport addresses that the
1302 * Transport : peer is bound to. This information is derived
1303 * Address : from the INIT or INIT ACK and is used to
1304 * List : associate an inbound packet with a given
1305 * : association. Normally this information is
1306 * : hashed or keyed for quick lookup and access
1307 * : of the TCB.
1308 *
1309 * It is a list of SCTP_transport's.
1310 */
1311 struct list_head transport_addr_list;
1312
1313 /* port
1314 * The transport layer port number.
1315 */
1316 __u16 port;
1317
1318 /* primary_path
1319 *
1320 * Primary : This is the current primary destination
1321 * Path : transport address of the peer endpoint. It
1322 * : may also specify a source transport address
1323 * : on this endpoint.
1324 *
1325 * All of these paths live on transport_addr_list.
1326 *
1327 * At the bakeoffs, we discovered that the intent of
1328 * primaryPath is that it only changes when the ULP
1329 * asks to have it changed. We add the activePath to
1330 * designate the connection we are currently using to
1331 * transmit new data and most control chunks.
1332 */
1333 struct sctp_transport *primary_path;
1334
1335 /* Cache the primary path address here, when we
1336 * need a an address for msg_name.
1337 */
1338 union sctp_addr primary_addr;
1339
1340 /* active_path
1341 * The path that we are currently using to
1342 * transmit new data and most control chunks.
1343 */
1344 struct sctp_transport *active_path;
1345
1346 /* retran_path
1347 *
1348 * RFC2960 6.4 Multi-homed SCTP Endpoints
1349 * ...
1350 * Furthermore, when its peer is multi-homed, an
1351 * endpoint SHOULD try to retransmit a chunk to an
1352 * active destination transport address that is
1353 * different from the last destination address to
1354 * which the DATA chunk was sent.
1355 */
1356 struct sctp_transport *retran_path;
1357
1358 /* Pointer to last transport I have sent on. */
1359 struct sctp_transport *last_sent_to;
1360
1361 /* This is the last transport I have received DATA on. */
1362 struct sctp_transport *last_data_from;
1363
1364 /*
1365 * Mapping An array of bits or bytes indicating which out of
1366 * Array order TSN's have been received (relative to the
1367 * Last Rcvd TSN). If no gaps exist, i.e. no out of
1368 * order packets have been received, this array
1369 * will be set to all zero. This structure may be
1370 * in the form of a circular buffer or bit array.
1371 *
1372 * Last Rcvd : This is the last TSN received in
1373 * TSN : sequence. This value is set initially by
1374 * : taking the peer's Initial TSN, received in
1375 * : the INIT or INIT ACK chunk, and subtracting
1376 * : one from it.
1377 *
1378 * Throughout most of the specification this is called the
1379 * "Cumulative TSN ACK Point". In this case, we
1380 * ignore the advice in 12.2 in favour of the term
1381 * used in the bulk of the text. This value is hidden
1382 * in tsn_map--we get it by calling sctp_tsnmap_get_ctsn().
1383 */
1384 struct sctp_tsnmap tsn_map;
1385 __u8 _map[sctp_tsnmap_storage_size(SCTP_TSN_MAP_SIZE)];
1386
1387 /* Ack State : This flag indicates if the next received
1388 * : packet is to be responded to with a
1389 * : SACK. This is initializedto 0. When a packet
1390 * : is received it is incremented. If this value
1391 * : reaches 2 or more, a SACK is sent and the
1392 * : value is reset to 0. Note: This is used only
1393 * : when no DATA chunks are received out of
1394 * : order. When DATA chunks are out of order,
1395 * : SACK's are not delayed (see Section 6).
1396 */
1397 __u8 sack_needed; /* Do we need to sack the peer? */
1398
1399 /* These are capabilities which our peer advertised. */
1400 __u8 ecn_capable; /* Can peer do ECN? */
1401 __u8 ipv4_address; /* Peer understands IPv4 addresses? */
1402 __u8 ipv6_address; /* Peer understands IPv6 addresses? */
1403 __u8 hostname_address;/* Peer understands DNS addresses? */
1404 __u8 asconf_capable; /* Does peer support ADDIP? */
1405 __u8 prsctp_capable; /* Can peer do PR-SCTP? */
1406
1407 __u32 adaption_ind; /* Adaption Code point. */
1408
1409 /* This mask is used to disable sending the ASCONF chunk
1410 * with specified parameter to peer.
1411 */
1412 __u16 addip_disabled_mask;
1413
1414 struct sctp_inithdr i;
1415 int cookie_len;
1416 void *cookie;
1417
1418 /* ADDIP Section 4.2 Upon reception of an ASCONF Chunk.
1419 * C1) ... "Peer-Serial-Number'. This value MUST be initialized to the
1420 * Initial TSN Value minus 1
1421 */
1422 __u32 addip_serial;
1423 } peer;
1424
1425 /* State : A state variable indicating what state the
1426 * : association is in, i.e. COOKIE-WAIT,
1427 * : COOKIE-ECHOED, ESTABLISHED, SHUTDOWN-PENDING,
1428 * : SHUTDOWN-SENT, SHUTDOWN-RECEIVED, SHUTDOWN-ACK-SENT.
1429 *
1430 * Note: No "CLOSED" state is illustrated since if a
1431 * association is "CLOSED" its TCB SHOULD be removed.
1432 *
1433 * In this implementation we DO have a CLOSED
1434 * state which is used during initiation and shutdown.
1435 *
1436 * State takes values from SCTP_STATE_*.
1437 */
1438 sctp_state_t state;
1439
1440 /* The cookie life I award for any cookie. */
1441 struct timeval cookie_life;
1442
1443 /* Overall : The overall association error count.
1444 * Error Count : [Clear this any time I get something.]
1445 */
1446 int overall_error_count;
1447
1448 /* These are the association's initial, max, and min RTO values.
1449 * These values will be initialized by system defaults, but can
1450 * be modified via the SCTP_RTOINFO socket option.
1451 */
1452 __u32 rto_initial;
1453 __u32 rto_max;
1454 __u32 rto_min;
1455
1456 /* Maximum number of new data packets that can be sent in a burst. */
1457 int max_burst;
1458
1459 /* This is the max_retrans value for the association. This value will
1460 * be initialized initialized from system defaults, but can be
1461 * modified by the SCTP_ASSOCINFO socket option.
1462 */
1463 int max_retrans;
1464
1465 /* Maximum number of times the endpoint will retransmit INIT */
1466 __u16 max_init_attempts;
1467
1468 /* How many times have we resent an INIT? */
1469 __u16 init_retries;
1470
1471 /* The largest timeout or RTO value to use in attempting an INIT */
1472 __u16 max_init_timeo;
1473
1474 int timeouts[SCTP_NUM_TIMEOUT_TYPES];
1475 struct timer_list timers[SCTP_NUM_TIMEOUT_TYPES];
1476
1477 /* Transport to which SHUTDOWN chunk was last sent. */
1478 struct sctp_transport *shutdown_last_sent_to;
1479
1480 /* Next TSN : The next TSN number to be assigned to a new
1481 * : DATA chunk. This is sent in the INIT or INIT
1482 * : ACK chunk to the peer and incremented each
1483 * : time a DATA chunk is assigned a TSN
1484 * : (normally just prior to transmit or during
1485 * : fragmentation).
1486 */
1487 __u32 next_tsn;
1488
1489 /*
1490 * Last Rcvd : This is the last TSN received in sequence. This value
1491 * TSN : is set initially by taking the peer's Initial TSN,
1492 * : received in the INIT or INIT ACK chunk, and
1493 * : subtracting one from it.
1494 *
1495 * Most of RFC 2960 refers to this as the Cumulative TSN Ack Point.
1496 */
1497
1498 __u32 ctsn_ack_point;
1499
1500 /* PR-SCTP Advanced.Peer.Ack.Point */
1501 __u32 adv_peer_ack_point;
1502
1503 /* Highest TSN that is acknowledged by incoming SACKs. */
1504 __u32 highest_sacked;
1505
1506 /* The number of unacknowledged data chunks. Reported through
1507 * the SCTP_STATUS sockopt.
1508 */
1509 __u16 unack_data;
1510
1511 /* This is the association's receive buffer space. This value is used
1512 * to set a_rwnd field in an INIT or a SACK chunk.
1513 */
1514 __u32 rwnd;
1515
1516 /* This is the last advertised value of rwnd over a SACK chunk. */
1517 __u32 a_rwnd;
1518
1519 /* Number of bytes by which the rwnd has slopped. The rwnd is allowed
1520 * to slop over a maximum of the association's frag_point.
1521 */
1522 __u32 rwnd_over;
1523
1524 /* This is the sndbuf size in use for the association.
1525 * This corresponds to the sndbuf size for the association,
1526 * as specified in the sk->sndbuf.
1527 */
1528 int sndbuf_used;
1529
1530 /* This is the wait queue head for send requests waiting on
1531 * the association sndbuf space.
1532 */
1533 wait_queue_head_t wait;
1534
1535 /* Association : The smallest PMTU discovered for all of the
1536 * PMTU : peer's transport addresses.
1537 */
1538 __u32 pmtu;
1539
1540 /* The message size at which SCTP fragmentation will occur. */
1541 __u32 frag_point;
1542
1543 /* Currently only one counter is used to count INIT errors. */
1544 int counters[SCTP_NUMBER_COUNTERS];
1545
1546 /* Default send parameters. */
1547 __u16 default_stream;
1548 __u16 default_flags;
1549 __u32 default_ppid;
1550 __u32 default_context;
1551 __u32 default_timetolive;
1552
1553 /* This tracks outbound ssn for a given stream. */
1554 struct sctp_ssnmap *ssnmap;
1555
1556 /* All outbound chunks go through this structure. */
1557 struct sctp_outq outqueue;
1558
1559 /* A smart pipe that will handle reordering and fragmentation,
1560 * as well as handle passing events up to the ULP.
1561 */
1562 struct sctp_ulpq ulpq;
1563
1564 /* Last TSN that caused an ECNE Chunk to be sent. */
1565 __u32 last_ecne_tsn;
1566
1567 /* Last TSN that caused a CWR Chunk to be sent. */
1568 __u32 last_cwr_tsn;
1569
1570 /* How many duplicated TSNs have we seen? */
1571 int numduptsns;
1572
1573 /* Number of seconds of idle time before an association is closed. */
1574 __u32 autoclose;
1575
1576 /* These are to support
1577 * "SCTP Extensions for Dynamic Reconfiguration of IP Addresses
1578 * and Enforcement of Flow and Message Limits"
1579 * <draft-ietf-tsvwg-addip-sctp-02.txt>
1580 * or "ADDIP" for short.
1581 */
1582
1583
1584
1585 /* ADDIP Section 4.1.1 Congestion Control of ASCONF Chunks
1586 *
1587 * R1) One and only one ASCONF Chunk MAY be in transit and
1588 * unacknowledged at any one time. If a sender, after sending
1589 * an ASCONF chunk, decides it needs to transfer another
1590 * ASCONF Chunk, it MUST wait until the ASCONF-ACK Chunk
1591 * returns from the previous ASCONF Chunk before sending a
1592 * subsequent ASCONF. Note this restriction binds each side,
1593 * so at any time two ASCONF may be in-transit on any given
1594 * association (one sent from each endpoint).
1595 *
1596 * [This is our one-and-only-one ASCONF in flight. If we do
1597 * not have an ASCONF in flight, this is NULL.]
1598 */
1599 struct sctp_chunk *addip_last_asconf;
1600
1601 /* ADDIP Section 4.2 Upon reception of an ASCONF Chunk.
1602 *
1603 * IMPLEMENTATION NOTE: As an optimization a receiver may wish
1604 * to save the last ASCONF-ACK for some predetermined period
1605 * of time and instead of re-processing the ASCONF (with the
1606 * same serial number) it may just re-transmit the
1607 * ASCONF-ACK. It may wish to use the arrival of a new serial
1608 * number to discard the previously saved ASCONF-ACK or any
1609 * other means it may choose to expire the saved ASCONF-ACK.
1610 *
1611 * [This is our saved ASCONF-ACK. We invalidate it when a new
1612 * ASCONF serial number arrives.]
1613 */
1614 struct sctp_chunk *addip_last_asconf_ack;
1615
1616 /* These ASCONF chunks are waiting to be sent.
1617 *
1618 * These chunaks can't be pushed to outqueue until receiving
1619 * ASCONF_ACK for the previous ASCONF indicated by
1620 * addip_last_asconf, so as to guarantee that only one ASCONF
1621 * is in flight at any time.
1622 *
1623 * ADDIP Section 4.1.1 Congestion Control of ASCONF Chunks
1624 *
1625 * In defining the ASCONF Chunk transfer procedures, it is
1626 * essential that these transfers MUST NOT cause congestion
1627 * within the network. To achieve this, we place these
1628 * restrictions on the transfer of ASCONF Chunks:
1629 *
1630 * R1) One and only one ASCONF Chunk MAY be in transit and
1631 * unacknowledged at any one time. If a sender, after sending
1632 * an ASCONF chunk, decides it needs to transfer another
1633 * ASCONF Chunk, it MUST wait until the ASCONF-ACK Chunk
1634 * returns from the previous ASCONF Chunk before sending a
1635 * subsequent ASCONF. Note this restriction binds each side,
1636 * so at any time two ASCONF may be in-transit on any given
1637 * association (one sent from each endpoint).
1638 *
1639 *
1640 * [I really think this is EXACTLY the sort of intelligence
1641 * which already resides in sctp_outq. Please move this
1642 * queue and its supporting logic down there. --piggy]
1643 */
1644 struct sk_buff_head addip_chunks;
1645
1646 /* ADDIP Section 4.1 ASCONF Chunk Procedures
1647 *
1648 * A2) A serial number should be assigned to the Chunk. The
1649 * serial number SHOULD be a monotonically increasing
1650 * number. The serial number SHOULD be initialized at
1651 * the start of the association to the same value as the
1652 * Initial TSN and every time a new ASCONF chunk is created
1653 * it is incremented by one after assigning the serial number
1654 * to the newly created chunk.
1655 *
1656 * ADDIP
1657 * 3.1.1 Address/Stream Configuration Change Chunk (ASCONF)
1658 *
1659 * Serial Number : 32 bits (unsigned integer)
1660 *
1661 * This value represents a Serial Number for the ASCONF
1662 * Chunk. The valid range of Serial Number is from 0 to
1663 * 4294967295 (2^32 - 1). Serial Numbers wrap back to 0
1664 * after reaching 4294967295.
1665 */
1666 __u32 addip_serial;
1667
1668 /* Need to send an ECNE Chunk? */
1669 char need_ecne;
1670
1671 /* Is it a temporary association? */
1672 char temp;
1673};
1674
1675
1676/* An eyecatcher for determining if we are really looking at an
1677 * association data structure.
1678 */
1679enum {
1680 SCTP_ASSOC_EYECATCHER = 0xa550c123,
1681};
1682
1683/* Recover the outter association structure. */
1684static inline struct sctp_association *sctp_assoc(struct sctp_ep_common *base)
1685{
1686 struct sctp_association *asoc;
1687
1688 asoc = container_of(base, struct sctp_association, base);
1689 return asoc;
1690}
1691
1692/* These are function signatures for manipulating associations. */
1693
1694
1695struct sctp_association *
1696sctp_association_new(const struct sctp_endpoint *, const struct sock *,
1697 sctp_scope_t scope, int gfp);
1698void sctp_association_free(struct sctp_association *);
1699void sctp_association_put(struct sctp_association *);
1700void sctp_association_hold(struct sctp_association *);
1701
1702struct sctp_transport *sctp_assoc_choose_shutdown_transport(
1703 struct sctp_association *);
1704void sctp_assoc_update_retran_path(struct sctp_association *);
1705struct sctp_transport *sctp_assoc_lookup_paddr(const struct sctp_association *,
1706 const union sctp_addr *);
1707int sctp_assoc_lookup_laddr(struct sctp_association *asoc,
1708 const union sctp_addr *laddr);
1709struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *,
1710 const union sctp_addr *address,
1711 const int gfp);
1712void sctp_assoc_del_peer(struct sctp_association *asoc,
1713 const union sctp_addr *addr);
1714void sctp_assoc_control_transport(struct sctp_association *,
1715 struct sctp_transport *,
1716 sctp_transport_cmd_t, sctp_sn_error_t);
1717struct sctp_transport *sctp_assoc_lookup_tsn(struct sctp_association *, __u32);
1718struct sctp_transport *sctp_assoc_is_match(struct sctp_association *,
1719 const union sctp_addr *,
1720 const union sctp_addr *);
1721void sctp_assoc_migrate(struct sctp_association *, struct sock *);
1722void sctp_assoc_update(struct sctp_association *old,
1723 struct sctp_association *new);
1724
1725__u32 sctp_association_get_next_tsn(struct sctp_association *);
1726
1727void sctp_assoc_sync_pmtu(struct sctp_association *);
1728void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned);
1729void sctp_assoc_rwnd_decrease(struct sctp_association *, unsigned);
1730void sctp_assoc_set_primary(struct sctp_association *,
1731 struct sctp_transport *);
1732int sctp_assoc_set_bind_addr_from_ep(struct sctp_association *, int);
1733int sctp_assoc_set_bind_addr_from_cookie(struct sctp_association *,
1734 struct sctp_cookie*, int gfp);
1735
1736int sctp_cmp_addr_exact(const union sctp_addr *ss1,
1737 const union sctp_addr *ss2);
1738struct sctp_chunk *sctp_get_ecne_prepend(struct sctp_association *asoc);
1739
1740/* A convenience structure to parse out SCTP specific CMSGs. */
1741typedef struct sctp_cmsgs {
1742 struct sctp_initmsg *init;
1743 struct sctp_sndrcvinfo *info;
1744} sctp_cmsgs_t;
1745
1746/* Structure for tracking memory objects */
1747typedef struct {
1748 char *label;
1749 atomic_t *counter;
1750} sctp_dbg_objcnt_entry_t;
1751
1752#endif /* __sctp_structs_h__ */
diff --git a/include/net/sctp/tsnmap.h b/include/net/sctp/tsnmap.h
new file mode 100644
index 000000000000..021947da70ea
--- /dev/null
+++ b/include/net/sctp/tsnmap.h
@@ -0,0 +1,207 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
8 *
9 * These are the definitions needed for the tsnmap type. The tsnmap is used
10 * to track out of order TSNs received.
11 *
12 * The SCTP reference implementation is free software;
13 * you can redistribute it and/or modify it under the terms of
14 * the GNU General Public License as published by
15 * the Free Software Foundation; either version 2, or (at your option)
16 * any later version.
17 *
18 * The SCTP reference implementation is distributed in the hope that it
19 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
20 * ************************
21 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
22 * See the GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with GNU CC; see the file COPYING. If not, write to
26 * the Free Software Foundation, 59 Temple Place - Suite 330,
27 * Boston, MA 02111-1307, USA.
28 *
29 * Please send any bug reports or fixes you make to the
30 * email address(es):
31 * lksctp developers <lksctp-developers@lists.sourceforge.net>
32 *
33 * Or submit a bug report through the following website:
34 * http://www.sf.net/projects/lksctp
35 *
36 * Written or modified by:
37 * Jon Grimm <jgrimm@us.ibm.com>
38 * La Monte H.P. Yarroll <piggy@acm.org>
39 * Karl Knutson <karl@athena.chicago.il.us>
40 * Sridhar Samudrala <sri@us.ibm.com>
41 *
42 * Any bugs reported given to us we will try to fix... any fixes shared will
43 * be incorporated into the next SCTP release.
44 */
45#include <net/sctp/constants.h>
46
47#ifndef __sctp_tsnmap_h__
48#define __sctp_tsnmap_h__
49
50/* RFC 2960 12.2 Parameters necessary per association (i.e. the TCB)
51 * Mapping An array of bits or bytes indicating which out of
52 * Array order TSN's have been received (relative to the
53 * Last Rcvd TSN). If no gaps exist, i.e. no out of
54 * order packets have been received, this array
55 * will be set to all zero. This structure may be
56 * in the form of a circular buffer or bit array.
57 */
58struct sctp_tsnmap {
59 /* This array counts the number of chunks with each TSN.
60 * It points at one of the two buffers with which we will
61 * ping-pong between.
62 */
63 __u8 *tsn_map;
64
65 /* This marks the tsn which overflows the tsn_map, when the
66 * cumulative ack point reaches this point we know we can switch
67 * maps (tsn_map and overflow_map swap).
68 */
69 __u32 overflow_tsn;
70
71 /* This is the overflow array for tsn_map.
72 * It points at one of the other ping-pong buffers.
73 */
74 __u8 *overflow_map;
75
76 /* This is the TSN at tsn_map[0]. */
77 __u32 base_tsn;
78
79 /* Last Rcvd : This is the last TSN received in
80 * TSN : sequence. This value is set initially by
81 * : taking the peer's Initial TSN, received in
82 * : the INIT or INIT ACK chunk, and subtracting
83 * : one from it.
84 *
85 * Throughout most of the specification this is called the
86 * "Cumulative TSN ACK Point". In this case, we
87 * ignore the advice in 12.2 in favour of the term
88 * used in the bulk of the text.
89 */
90 __u32 cumulative_tsn_ack_point;
91
92 /* This is the minimum number of TSNs we can track. This corresponds
93 * to the size of tsn_map. Note: the overflow_map allows us to
94 * potentially track more than this quantity.
95 */
96 __u16 len;
97
98 /* This is the highest TSN we've marked. */
99 __u32 max_tsn_seen;
100
101 /* Data chunks pending receipt. used by SCTP_STATUS sockopt */
102 __u16 pending_data;
103
104 /* Record duplicate TSNs here. We clear this after
105 * every SACK. Store up to SCTP_MAX_DUP_TSNS worth of
106 * information.
107 */
108 __u32 dup_tsns[SCTP_MAX_DUP_TSNS];
109 __u16 num_dup_tsns;
110
111 /* Record gap ack block information here. */
112 struct sctp_gap_ack_block gabs[SCTP_MAX_GABS];
113
114 int malloced;
115
116 __u8 raw_map[0];
117};
118
119struct sctp_tsnmap_iter {
120 __u32 start;
121};
122
123/* This macro assists in creation of external storage for variable length
124 * internal buffers. We double allocate so the overflow map works.
125 */
126#define sctp_tsnmap_storage_size(count) (sizeof(__u8) * (count) * 2)
127
128/* Initialize a block of memory as a tsnmap. */
129struct sctp_tsnmap *sctp_tsnmap_init(struct sctp_tsnmap *, __u16 len,
130 __u32 initial_tsn);
131
132/* Test the tracking state of this TSN.
133 * Returns:
134 * 0 if the TSN has not yet been seen
135 * >0 if the TSN has been seen (duplicate)
136 * <0 if the TSN is invalid (too large to track)
137 */
138int sctp_tsnmap_check(const struct sctp_tsnmap *, __u32 tsn);
139
140/* Mark this TSN as seen. */
141void sctp_tsnmap_mark(struct sctp_tsnmap *, __u32 tsn);
142
143/* Mark this TSN and all lower as seen. */
144void sctp_tsnmap_skip(struct sctp_tsnmap *map, __u32 tsn);
145
146/* Retrieve the Cumulative TSN ACK Point. */
147static inline __u32 sctp_tsnmap_get_ctsn(const struct sctp_tsnmap *map)
148{
149 return map->cumulative_tsn_ack_point;
150}
151
152/* Retrieve the highest TSN we've seen. */
153static inline __u32 sctp_tsnmap_get_max_tsn_seen(const struct sctp_tsnmap *map)
154{
155 return map->max_tsn_seen;
156}
157
158/* How many duplicate TSNs are stored? */
159static inline __u16 sctp_tsnmap_num_dups(struct sctp_tsnmap *map)
160{
161 return map->num_dup_tsns;
162}
163
164/* Return pointer to duplicate tsn array as needed by SACK. */
165static inline __u32 *sctp_tsnmap_get_dups(struct sctp_tsnmap *map)
166{
167 map->num_dup_tsns = 0;
168 return map->dup_tsns;
169}
170
171/* How many gap ack blocks do we have recorded? */
172__u16 sctp_tsnmap_num_gabs(struct sctp_tsnmap *map);
173
174/* Refresh the count on pending data. */
175__u16 sctp_tsnmap_pending(struct sctp_tsnmap *map);
176
177/* Return pointer to gap ack blocks as needed by SACK. */
178static inline struct sctp_gap_ack_block *sctp_tsnmap_get_gabs(struct sctp_tsnmap *map)
179{
180 return map->gabs;
181}
182
183/* Is there a gap in the TSN map? */
184static inline int sctp_tsnmap_has_gap(const struct sctp_tsnmap *map)
185{
186 int has_gap;
187
188 has_gap = (map->cumulative_tsn_ack_point != map->max_tsn_seen);
189 return has_gap;
190}
191
192/* Mark a duplicate TSN. Note: limit the storage of duplicate TSN
193 * information.
194 */
195static inline void sctp_tsnmap_mark_dup(struct sctp_tsnmap *map, __u32 tsn)
196{
197 if (map->num_dup_tsns < SCTP_MAX_DUP_TSNS)
198 map->dup_tsns[map->num_dup_tsns++] = htonl(tsn);
199}
200
201/* Renege a TSN that was seen. */
202void sctp_tsnmap_renege(struct sctp_tsnmap *, __u32 tsn);
203
204/* Is there a gap in the TSN map? */
205int sctp_tsnmap_has_gap(const struct sctp_tsnmap *);
206
207#endif /* __sctp_tsnmap_h__ */
diff --git a/include/net/sctp/ulpevent.h b/include/net/sctp/ulpevent.h
new file mode 100644
index 000000000000..1019d83a580a
--- /dev/null
+++ b/include/net/sctp/ulpevent.h
@@ -0,0 +1,162 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 * Copyright (c) 2001 Nokia, Inc.
7 * Copyright (c) 2001 La Monte H.P. Yarroll
8 *
9 * These are the definitions needed for the sctp_ulpevent type. The
10 * sctp_ulpevent type is used to carry information from the state machine
11 * upwards to the ULP.
12 *
13 * This file is part of the SCTP kernel reference Implementation
14 *
15 * The SCTP reference implementation is free software;
16 * you can redistribute it and/or modify it under the terms of
17 * the GNU General Public License as published by
18 * the Free Software Foundation; either version 2, or (at your option)
19 * any later version.
20 *
21 * The SCTP reference implementation is distributed in the hope that it
22 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
23 * ************************
24 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
25 * See the GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with GNU CC; see the file COPYING. If not, write to
29 * the Free Software Foundation, 59 Temple Place - Suite 330,
30 * Boston, MA 02111-1307, USA.
31 *
32 * Please send any bug reports or fixes you make to the
33 * email address(es):
34 * lksctp developers <lksctp-developers@lists.sourceforge.net>
35 *
36 * Or submit a bug report through the following website:
37 * http://www.sf.net/projects/lksctp
38 *
39 * Written or modified by:
40 * Jon Grimm <jgrimm@us.ibm.com>
41 * La Monte H.P. Yarroll <piggy@acm.org>
42 * Karl Knutson <karl@athena.chicago.il.us>
43 * Sridhar Samudrala <sri@us.ibm.com>
44 *
45 * Any bugs reported given to us we will try to fix... any fixes shared will
46 * be incorporated into the next SCTP release.
47 */
48
49#ifndef __sctp_ulpevent_h__
50#define __sctp_ulpevent_h__
51
52/* A structure to carry information to the ULP (e.g. Sockets API) */
53/* Warning: This sits inside an skb.cb[] area. Be very careful of
54 * growing this structure as it is at the maximum limit now.
55 */
56struct sctp_ulpevent {
57 struct sctp_association *asoc;
58 __u16 stream;
59 __u16 ssn;
60 __u16 flags;
61 __u32 ppid;
62 __u32 tsn;
63 __u32 cumtsn;
64 int msg_flags;
65 int iif;
66};
67
68/* Retrieve the skb this event sits inside of. */
69static inline struct sk_buff *sctp_event2skb(struct sctp_ulpevent *ev)
70{
71 return container_of((void *)ev, struct sk_buff, cb);
72}
73
74/* Retrieve & cast the event sitting inside the skb. */
75static inline struct sctp_ulpevent *sctp_skb2event(struct sk_buff *skb)
76{
77 return (struct sctp_ulpevent *)skb->cb;
78}
79
80void sctp_ulpevent_free(struct sctp_ulpevent *);
81int sctp_ulpevent_is_notification(const struct sctp_ulpevent *);
82void sctp_queue_purge_ulpevents(struct sk_buff_head *list);
83
84struct sctp_ulpevent *sctp_ulpevent_make_assoc_change(
85 const struct sctp_association *asoc,
86 __u16 flags,
87 __u16 state,
88 __u16 error,
89 __u16 outbound,
90 __u16 inbound,
91 int gfp);
92
93struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change(
94 const struct sctp_association *asoc,
95 const struct sockaddr_storage *aaddr,
96 int flags,
97 int state,
98 int error,
99 int gfp);
100
101struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
102 const struct sctp_association *asoc,
103 struct sctp_chunk *chunk,
104 __u16 flags,
105 int gfp);
106struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
107 const struct sctp_association *asoc,
108 struct sctp_chunk *chunk,
109 __u16 flags,
110 __u32 error,
111 int gfp);
112
113struct sctp_ulpevent *sctp_ulpevent_make_shutdown_event(
114 const struct sctp_association *asoc,
115 __u16 flags,
116 int gfp);
117
118struct sctp_ulpevent *sctp_ulpevent_make_pdapi(
119 const struct sctp_association *asoc,
120 __u32 indication, int gfp);
121
122struct sctp_ulpevent *sctp_ulpevent_make_adaption_indication(
123 const struct sctp_association *asoc, int gfp);
124
125struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
126 struct sctp_chunk *chunk,
127 int gfp);
128
129void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event,
130 struct msghdr *);
131__u16 sctp_ulpevent_get_notification_type(const struct sctp_ulpevent *event);
132
133/* Is this event type enabled? */
134static inline int sctp_ulpevent_type_enabled(__u16 sn_type,
135 struct sctp_event_subscribe *mask)
136{
137 char *amask = (char *) mask;
138 return amask[sn_type - SCTP_SN_TYPE_BASE];
139}
140
141/* Given an event subscription, is this event enabled? */
142static inline int sctp_ulpevent_is_enabled(const struct sctp_ulpevent *event,
143 struct sctp_event_subscribe *mask)
144{
145 __u16 sn_type;
146 int enabled = 1;
147
148 if (sctp_ulpevent_is_notification(event)) {
149 sn_type = sctp_ulpevent_get_notification_type(event);
150 enabled = sctp_ulpevent_type_enabled(sn_type, mask);
151 }
152 return enabled;
153}
154
155#endif /* __sctp_ulpevent_h__ */
156
157
158
159
160
161
162
diff --git a/include/net/sctp/ulpqueue.h b/include/net/sctp/ulpqueue.h
new file mode 100644
index 000000000000..961736d29d21
--- /dev/null
+++ b/include/net/sctp/ulpqueue.h
@@ -0,0 +1,92 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 * Copyright (c) 2001 Nokia, Inc.
7 * Copyright (c) 2001 La Monte H.P. Yarroll
8 *
9 * These are the definitions needed for the sctp_ulpq type. The
10 * sctp_ulpq is the interface between the Upper Layer Protocol, or ULP,
11 * and the core SCTP state machine. This is the component which handles
12 * reassembly and ordering.
13 *
14 * The SCTP reference implementation is free software;
15 * you can redistribute it and/or modify it under the terms of
16 * the GNU General Public License as published by
17 * the Free Software Foundation; either version 2, or (at your option)
18 * any later version.
19 *
20 * the SCTP reference implementation is distributed in the hope that it
21 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
22 * ************************
23 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
24 * See the GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with GNU CC; see the file COPYING. If not, write to
28 * the Free Software Foundation, 59 Temple Place - Suite 330,
29 * Boston, MA 02111-1307, USA.
30 *
31 * Please send any bug reports or fixes you make to the
32 * email addresses:
33 * lksctp developers <lksctp-developers@lists.sourceforge.net>
34 *
35 * Or submit a bug report through the following website:
36 * http://www.sf.net/projects/lksctp
37 *
38 * Written or modified by:
39 * Jon Grimm <jgrimm@us.ibm.com>
40 * La Monte H.P. Yarroll <piggy@acm.org>
41 * Sridhar Samudrala <sri@us.ibm.com>
42 *
43 * Any bugs reported given to us we will try to fix... any fixes shared will
44 * be incorporated into the next SCTP release.
45 */
46
47#ifndef __sctp_ulpqueue_h__
48#define __sctp_ulpqueue_h__
49
50/* A structure to carry information to the ULP (e.g. Sockets API) */
51struct sctp_ulpq {
52 char malloced;
53 char pd_mode;
54 struct sctp_association *asoc;
55 struct sk_buff_head reasm;
56 struct sk_buff_head lobby;
57};
58
59/* Prototypes. */
60struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *,
61 struct sctp_association *);
62void sctp_ulpq_free(struct sctp_ulpq *);
63
64/* Add a new DATA chunk for processing. */
65int sctp_ulpq_tail_data(struct sctp_ulpq *, struct sctp_chunk *, int);
66
67/* Add a new event for propagation to the ULP. */
68int sctp_ulpq_tail_event(struct sctp_ulpq *, struct sctp_ulpevent *ev);
69
70/* Renege previously received chunks. */
71void sctp_ulpq_renege(struct sctp_ulpq *, struct sctp_chunk *, int);
72
73/* Perform partial delivery. */
74void sctp_ulpq_partial_delivery(struct sctp_ulpq *, struct sctp_chunk *, int);
75
76/* Abort the partial delivery. */
77void sctp_ulpq_abort_pd(struct sctp_ulpq *, int);
78
79/* Clear the partial data delivery condition on this socket. */
80int sctp_clear_pd(struct sock *sk);
81
82/* Skip over an SSN. */
83void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn);
84
85#endif /* __sctp_ulpqueue_h__ */
86
87
88
89
90
91
92
diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h
new file mode 100644
index 000000000000..2758e8ce4f25
--- /dev/null
+++ b/include/net/sctp/user.h
@@ -0,0 +1,589 @@
1/* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2002 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
8 *
9 * This header represents the structures and constants needed to support
10 * the SCTP Extension to the Sockets API.
11 *
12 * The SCTP reference implementation is free software;
13 * you can redistribute it and/or modify it under the terms of
14 * the GNU General Public License as published by
15 * the Free Software Foundation; either version 2, or (at your option)
16 * any later version.
17 *
18 * The SCTP reference implementation is distributed in the hope that it
19 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
20 * ************************
21 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
22 * See the GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with GNU CC; see the file COPYING. If not, write to
26 * the Free Software Foundation, 59 Temple Place - Suite 330,
27 * Boston, MA 02111-1307, USA.
28 *
29 * Please send any bug reports or fixes you make to the
30 * email address(es):
31 * lksctp developers <lksctp-developers@lists.sourceforge.net>
32 *
33 * Or submit a bug report through the following website:
34 * http://www.sf.net/projects/lksctp
35 *
36 * Written or modified by:
37 * La Monte H.P. Yarroll <piggy@acm.org>
38 * R. Stewart <randall@sctp.chicago.il.us>
39 * K. Morneau <kmorneau@cisco.com>
40 * Q. Xie <qxie1@email.mot.com>
41 * Karl Knutson <karl@athena.chicago.il.us>
42 * Jon Grimm <jgrimm@us.ibm.com>
43 * Daisy Chang <daisyc@us.ibm.com>
44 * Ryan Layer <rmlayer@us.ibm.com>
45 * Ardelle Fan <ardelle.fan@intel.com>
46 * Sridhar Samudrala <sri@us.ibm.com>
47 *
48 * Any bugs reported given to us we will try to fix... any fixes shared will
49 * be incorporated into the next SCTP release.
50 */
51
52#ifndef __net_sctp_user_h__
53#define __net_sctp_user_h__
54
55#include <linux/types.h>
56#include <linux/socket.h>
57
58typedef __s32 sctp_assoc_t;
59
60/* The following symbols come from the Sockets API Extensions for
61 * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>.
62 */
63enum sctp_optname {
64 SCTP_RTOINFO,
65#define SCTP_RTOINFO SCTP_RTOINFO
66 SCTP_ASSOCINFO,
67#define SCTP_ASSOCINFO SCTP_ASSOCINFO
68 SCTP_INITMSG,
69#define SCTP_INITMSG SCTP_INITMSG
70 SCTP_NODELAY, /* Get/set nodelay option. */
71#define SCTP_NODELAY SCTP_NODELAY
72 SCTP_AUTOCLOSE,
73#define SCTP_AUTOCLOSE SCTP_AUTOCLOSE
74 SCTP_SET_PEER_PRIMARY_ADDR,
75#define SCTP_SET_PEER_PRIMARY_ADDR SCTP_SET_PEER_PRIMARY_ADDR
76 SCTP_PRIMARY_ADDR,
77#define SCTP_PRIMARY_ADDR SCTP_PRIMARY_ADDR
78 SCTP_ADAPTION_LAYER,
79#define SCTP_ADAPTION_LAYER SCTP_ADAPTION_LAYER
80 SCTP_DISABLE_FRAGMENTS,
81#define SCTP_DISABLE_FRAGMENTS SCTP_DISABLE_FRAGMENTS
82 SCTP_PEER_ADDR_PARAMS,
83#define SCTP_PEER_ADDR_PARAMS SCTP_PEER_ADDR_PARAMS
84 SCTP_DEFAULT_SEND_PARAM,
85#define SCTP_DEFAULT_SEND_PARAM SCTP_DEFAULT_SEND_PARAM
86 SCTP_EVENTS,
87#define SCTP_EVENTS SCTP_EVENTS
88 SCTP_I_WANT_MAPPED_V4_ADDR, /* Turn on/off mapped v4 addresses */
89#define SCTP_I_WANT_MAPPED_V4_ADDR SCTP_I_WANT_MAPPED_V4_ADDR
90 SCTP_MAXSEG, /* Get/set maximum fragment. */
91#define SCTP_MAXSEG SCTP_MAXSEG
92 SCTP_STATUS,
93#define SCTP_STATUS SCTP_STATUS
94 SCTP_GET_PEER_ADDR_INFO,
95#define SCTP_GET_PEER_ADDR_INFO SCTP_GET_PEER_ADDR_INFO
96
97 /* Internal Socket Options. Some of the sctp library functions are
98 * implemented using these socket options.
99 */
100 SCTP_SOCKOPT_BINDX_ADD = 100,/* BINDX requests for adding addresses. */
101#define SCTP_SOCKOPT_BINDX_ADD SCTP_SOCKOPT_BINDX_ADD
102 SCTP_SOCKOPT_BINDX_REM, /* BINDX requests for removing addresses. */
103#define SCTP_SOCKOPT_BINDX_REM SCTP_SOCKOPT_BINDX_REM
104 SCTP_SOCKOPT_PEELOFF, /* peel off association. */
105#define SCTP_SOCKOPT_PEELOFF SCTP_SOCKOPT_PEELOFF
106 SCTP_GET_PEER_ADDRS_NUM, /* Get number of peer addresss. */
107#define SCTP_GET_PEER_ADDRS_NUM SCTP_GET_PEER_ADDRS_NUM
108 SCTP_GET_PEER_ADDRS, /* Get all peer addresss. */
109#define SCTP_GET_PEER_ADDRS SCTP_GET_PEER_ADDRS
110 SCTP_GET_LOCAL_ADDRS_NUM, /* Get number of local addresss. */
111#define SCTP_GET_LOCAL_ADDRS_NUM SCTP_GET_LOCAL_ADDRS_NUM
112 SCTP_GET_LOCAL_ADDRS, /* Get all local addresss. */
113#define SCTP_GET_LOCAL_ADDRS SCTP_GET_LOCAL_ADDRS
114};
115
116/*
117 * 5.2.1 SCTP Initiation Structure (SCTP_INIT)
118 *
119 * This cmsghdr structure provides information for initializing new
120 * SCTP associations with sendmsg(). The SCTP_INITMSG socket option
121 * uses this same data structure. This structure is not used for
122 * recvmsg().
123 *
124 * cmsg_level cmsg_type cmsg_data[]
125 * ------------ ------------ ----------------------
126 * IPPROTO_SCTP SCTP_INIT struct sctp_initmsg
127 *
128 */
129struct sctp_initmsg {
130 __u16 sinit_num_ostreams;
131 __u16 sinit_max_instreams;
132 __u16 sinit_max_attempts;
133 __u16 sinit_max_init_timeo;
134};
135
136/*
137 * 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV)
138 *
139 * This cmsghdr structure specifies SCTP options for sendmsg() and
140 * describes SCTP header information about a received message through
141 * recvmsg().
142 *
143 * cmsg_level cmsg_type cmsg_data[]
144 * ------------ ------------ ----------------------
145 * IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo
146 *
147 */
148struct sctp_sndrcvinfo {
149 __u16 sinfo_stream;
150 __u16 sinfo_ssn;
151 __u16 sinfo_flags;
152 __u32 sinfo_ppid;
153 __u32 sinfo_context;
154 __u32 sinfo_timetolive;
155 __u32 sinfo_tsn;
156 __u32 sinfo_cumtsn;
157 sctp_assoc_t sinfo_assoc_id;
158};
159
160/*
161 * sinfo_flags: 16 bits (unsigned integer)
162 *
163 * This field may contain any of the following flags and is composed of
164 * a bitwise OR of these values.
165 */
166
167enum sctp_sinfo_flags {
168 MSG_UNORDERED = 1, /* Send/receive message unordered. */
169 MSG_ADDR_OVER = 2, /* Override the primary destination. */
170 MSG_ABORT=4, /* Send an ABORT message to the peer. */
171 /* MSG_EOF is already defined per socket.h */
172};
173
174
175typedef union {
176 __u8 raw;
177 struct sctp_initmsg init;
178 struct sctp_sndrcvinfo sndrcv;
179} sctp_cmsg_data_t;
180
181/* These are cmsg_types. */
182typedef enum sctp_cmsg_type {
183 SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */
184 SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */
185} sctp_cmsg_t;
186
187
188/*
189 * 5.3.1.1 SCTP_ASSOC_CHANGE
190 *
191 * Communication notifications inform the ULP that an SCTP association
192 * has either begun or ended. The identifier for a new association is
193 * provided by this notificaion. The notification information has the
194 * following format:
195 *
196 */
197struct sctp_assoc_change {
198 __u16 sac_type;
199 __u16 sac_flags;
200 __u32 sac_length;
201 __u16 sac_state;
202 __u16 sac_error;
203 __u16 sac_outbound_streams;
204 __u16 sac_inbound_streams;
205 sctp_assoc_t sac_assoc_id;
206};
207
208/*
209 * sac_state: 32 bits (signed integer)
210 *
211 * This field holds one of a number of values that communicate the
212 * event that happened to the association. They include:
213 *
214 * Note: The following state names deviate from the API draft as
215 * the names clash too easily with other kernel symbols.
216 */
217enum sctp_sac_state {
218 SCTP_COMM_UP,
219 SCTP_COMM_LOST,
220 SCTP_RESTART,
221 SCTP_SHUTDOWN_COMP,
222 SCTP_CANT_STR_ASSOC,
223};
224
225/*
226 * 5.3.1.2 SCTP_PEER_ADDR_CHANGE
227 *
228 * When a destination address on a multi-homed peer encounters a change
229 * an interface details event is sent. The information has the
230 * following structure:
231 */
232struct sctp_paddr_change {
233 __u16 spc_type;
234 __u16 spc_flags;
235 __u32 spc_length;
236 struct sockaddr_storage spc_aaddr;
237 int spc_state;
238 int spc_error;
239 sctp_assoc_t spc_assoc_id;
240};
241
242/*
243 * spc_state: 32 bits (signed integer)
244 *
245 * This field holds one of a number of values that communicate the
246 * event that happened to the address. They include:
247 */
248enum sctp_spc_state {
249 SCTP_ADDR_AVAILABLE,
250 SCTP_ADDR_UNREACHABLE,
251 SCTP_ADDR_REMOVED,
252 SCTP_ADDR_ADDED,
253 SCTP_ADDR_MADE_PRIM,
254};
255
256
257/*
258 * 5.3.1.3 SCTP_REMOTE_ERROR
259 *
260 * A remote peer may send an Operational Error message to its peer.
261 * This message indicates a variety of error conditions on an
262 * association. The entire error TLV as it appears on the wire is
263 * included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP
264 * specification [SCTP] and any extensions for a list of possible
265 * error formats. SCTP error TLVs have the format:
266 */
267struct sctp_remote_error {
268 __u16 sre_type;
269 __u16 sre_flags;
270 __u32 sre_length;
271 __u16 sre_error;
272 sctp_assoc_t sre_assoc_id;
273 __u8 sre_data[0];
274};
275
276
277/*
278 * 5.3.1.4 SCTP_SEND_FAILED
279 *
280 * If SCTP cannot deliver a message it may return the message as a
281 * notification.
282 */
283struct sctp_send_failed {
284 __u16 ssf_type;
285 __u16 ssf_flags;
286 __u32 ssf_length;
287 __u32 ssf_error;
288 struct sctp_sndrcvinfo ssf_info;
289 sctp_assoc_t ssf_assoc_id;
290 __u8 ssf_data[0];
291};
292
293/*
294 * ssf_flags: 16 bits (unsigned integer)
295 *
296 * The flag value will take one of the following values
297 *
298 * SCTP_DATA_UNSENT - Indicates that the data was never put on
299 * the wire.
300 *
301 * SCTP_DATA_SENT - Indicates that the data was put on the wire.
302 * Note that this does not necessarily mean that the
303 * data was (or was not) successfully delivered.
304 */
305enum sctp_ssf_flags {
306 SCTP_DATA_UNSENT,
307 SCTP_DATA_SENT,
308};
309
310/*
311 * 5.3.1.5 SCTP_SHUTDOWN_EVENT
312 *
313 * When a peer sends a SHUTDOWN, SCTP delivers this notification to
314 * inform the application that it should cease sending data.
315 */
316struct sctp_shutdown_event {
317 __u16 sse_type;
318 __u16 sse_flags;
319 __u32 sse_length;
320 sctp_assoc_t sse_assoc_id;
321};
322
323/*
324 * 5.3.1.6 SCTP_ADAPTION_INDICATION
325 *
326 * When a peer sends a Adaption Layer Indication parameter , SCTP
327 * delivers this notification to inform the application
328 * that of the peers requested adaption layer.
329 */
330struct sctp_adaption_event {
331 __u16 sai_type;
332 __u16 sai_flags;
333 __u32 sai_length;
334 __u32 sai_adaption_ind;
335 sctp_assoc_t sai_assoc_id;
336};
337
338/*
339 * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT
340 *
341 * When a receiver is engaged in a partial delivery of a
342 * message this notification will be used to indicate
343 * various events.
344 */
345struct sctp_pdapi_event {
346 __u16 pdapi_type;
347 __u16 pdapi_flags;
348 __u32 pdapi_length;
349 __u32 pdapi_indication;
350 sctp_assoc_t pdapi_assoc_id;
351};
352
353enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, };
354
355/*
356 * Described in Section 7.3
357 * Ancillary Data and Notification Interest Options
358 */
359struct sctp_event_subscribe {
360 __u8 sctp_data_io_event;
361 __u8 sctp_association_event;
362 __u8 sctp_address_event;
363 __u8 sctp_send_failure_event;
364 __u8 sctp_peer_error_event;
365 __u8 sctp_shutdown_event;
366 __u8 sctp_partial_delivery_event;
367 __u8 sctp_adaption_layer_event;
368};
369
370/*
371 * 5.3.1 SCTP Notification Structure
372 *
373 * The notification structure is defined as the union of all
374 * notification types.
375 *
376 */
377union sctp_notification {
378 struct {
379 __u16 sn_type; /* Notification type. */
380 __u16 sn_flags;
381 __u32 sn_length;
382 } sn_header;
383 struct sctp_assoc_change sn_assoc_change;
384 struct sctp_paddr_change sn_paddr_change;
385 struct sctp_remote_error sn_remote_error;
386 struct sctp_send_failed sn_send_failed;
387 struct sctp_shutdown_event sn_shutdown_event;
388 struct sctp_adaption_event sn_adaption_event;
389 struct sctp_pdapi_event sn_pdapi_event;
390};
391
392/* Section 5.3.1
393 * All standard values for sn_type flags are greater than 2^15.
394 * Values from 2^15 and down are reserved.
395 */
396
397enum sctp_sn_type {
398 SCTP_SN_TYPE_BASE = (1<<15),
399 SCTP_ASSOC_CHANGE,
400 SCTP_PEER_ADDR_CHANGE,
401 SCTP_SEND_FAILED,
402 SCTP_REMOTE_ERROR,
403 SCTP_SHUTDOWN_EVENT,
404 SCTP_PARTIAL_DELIVERY_EVENT,
405 SCTP_ADAPTION_INDICATION,
406};
407
408/* Notification error codes used to fill up the error fields in some
409 * notifications.
410 * SCTP_PEER_ADDRESS_CHAGE : spc_error
411 * SCTP_ASSOC_CHANGE : sac_error
412 * These names should be potentially included in the draft 04 of the SCTP
413 * sockets API specification.
414 */
415typedef enum sctp_sn_error {
416 SCTP_FAILED_THRESHOLD,
417 SCTP_RECEIVED_SACK,
418 SCTP_HEARTBEAT_SUCCESS,
419 SCTP_RESPONSE_TO_USER_REQ,
420 SCTP_INTERNAL_ERROR,
421 SCTP_SHUTDOWN_GUARD_EXPIRES,
422 SCTP_PEER_FAULTY,
423} sctp_sn_error_t;
424
425/*
426 * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO)
427 *
428 * The protocol parameters used to initialize and bound retransmission
429 * timeout (RTO) are tunable. See [SCTP] for more information on how
430 * these parameters are used in RTO calculation.
431 */
432struct sctp_rtoinfo {
433 sctp_assoc_t srto_assoc_id;
434 __u32 srto_initial;
435 __u32 srto_max;
436 __u32 srto_min;
437};
438
439/*
440 * 7.1.2 Association Parameters (SCTP_ASSOCINFO)
441 *
442 * This option is used to both examine and set various association and
443 * endpoint parameters.
444 */
445struct sctp_assocparams {
446 sctp_assoc_t sasoc_assoc_id;
447 __u16 sasoc_asocmaxrxt;
448 __u16 sasoc_number_peer_destinations;
449 __u32 sasoc_peer_rwnd;
450 __u32 sasoc_local_rwnd;
451 __u32 sasoc_cookie_life;
452};
453
454/*
455 * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR)
456 *
457 * Requests that the peer mark the enclosed address as the association
458 * primary. The enclosed address must be one of the association's
459 * locally bound addresses. The following structure is used to make a
460 * set primary request:
461 */
462struct sctp_setpeerprim {
463 sctp_assoc_t sspp_assoc_id;
464 struct sockaddr_storage sspp_addr;
465};
466
467/*
468 * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR)
469 *
470 * Requests that the local SCTP stack use the enclosed peer address as
471 * the association primary. The enclosed address must be one of the
472 * association peer's addresses. The following structure is used to
473 * make a set peer primary request:
474 */
475struct sctp_prim {
476 sctp_assoc_t ssp_assoc_id;
477 struct sockaddr_storage ssp_addr;
478};
479
480/*
481 * 7.1.11 Set Adaption Layer Indicator (SCTP_ADAPTION_LAYER)
482 *
483 * Requests that the local endpoint set the specified Adaption Layer
484 * Indication parameter for all future INIT and INIT-ACK exchanges.
485 */
486struct sctp_setadaption {
487 __u32 ssb_adaption_ind;
488};
489
490/*
491 * 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS)
492 *
493 * Applications can enable or disable heartbeats for any peer address
494 * of an association, modify an address's heartbeat interval, force a
495 * heartbeat to be sent immediately, and adjust the address's maximum
496 * number of retransmissions sent before an address is considered
497 * unreachable. The following structure is used to access and modify an
498 * address's parameters:
499 */
500struct sctp_paddrparams {
501 sctp_assoc_t spp_assoc_id;
502 struct sockaddr_storage spp_address;
503 __u32 spp_hbinterval;
504 __u16 spp_pathmaxrxt;
505};
506
507/*
508 * 7.2.2 Peer Address Information
509 *
510 * Applications can retrieve information about a specific peer address
511 * of an association, including its reachability state, congestion
512 * window, and retransmission timer values. This information is
513 * read-only. The following structure is used to access this
514 * information:
515 */
516struct sctp_paddrinfo {
517 sctp_assoc_t spinfo_assoc_id;
518 struct sockaddr_storage spinfo_address;
519 __s32 spinfo_state;
520 __u32 spinfo_cwnd;
521 __u32 spinfo_srtt;
522 __u32 spinfo_rto;
523 __u32 spinfo_mtu;
524};
525
526/* Peer addresses's state. */
527enum sctp_spinfo_state {
528 SCTP_INACTIVE,
529 SCTP_ACTIVE,
530};
531
532/*
533 * 7.2.1 Association Status (SCTP_STATUS)
534 *
535 * Applications can retrieve current status information about an
536 * association, including association state, peer receiver window size,
537 * number of unacked data chunks, and number of data chunks pending
538 * receipt. This information is read-only. The following structure is
539 * used to access this information:
540 */
541struct sctp_status {
542 sctp_assoc_t sstat_assoc_id;
543 __s32 sstat_state;
544 __u32 sstat_rwnd;
545 __u16 sstat_unackdata;
546 __u16 sstat_penddata;
547 __u16 sstat_instrms;
548 __u16 sstat_outstrms;
549 __u32 sstat_fragmentation_point;
550 struct sctp_paddrinfo sstat_primary;
551};
552
553/*
554 * 8.3, 8.5 get all peer/local addresses in an association.
555 * This parameter struct is used by SCTP_GET_PEER_ADDRS and
556 * SCTP_GET_LOCAL_ADDRS socket options used internally to implement
557 * sctp_getpaddrs() and sctp_getladdrs() API.
558 */
559struct sctp_getaddrs {
560 sctp_assoc_t assoc_id;
561 int addr_num;
562 struct sockaddr __user *addrs;
563};
564
565/* These are bit fields for msghdr->msg_flags. See section 5.1. */
566/* On user space Linux, these live in <bits/socket.h> as an enum. */
567enum sctp_msg_flags {
568 MSG_NOTIFICATION = 0x8000,
569#define MSG_NOTIFICATION MSG_NOTIFICATION
570};
571
572/*
573 * 8.1 sctp_bindx()
574 *
575 * The flags parameter is formed from the bitwise OR of zero or more of the
576 * following currently defined flags:
577 */
578#define SCTP_BINDX_ADD_ADDR 0x01
579#define SCTP_BINDX_REM_ADDR 0x02
580
581/* This is the structure that is passed as an argument(optval) to
582 * getsockopt(SCTP_SOCKOPT_PEELOFF).
583 */
584typedef struct {
585 sctp_assoc_t associd;
586 int sd;
587} sctp_peeloff_arg_t;
588
589#endif /* __net_sctp_user_h__ */
diff --git a/include/net/slhc_vj.h b/include/net/slhc_vj.h
new file mode 100644
index 000000000000..0b2c2784f333
--- /dev/null
+++ b/include/net/slhc_vj.h
@@ -0,0 +1,188 @@
1#ifndef _SLHC_H
2#define _SLHC_H
3/*
4 * Definitions for tcp compression routines.
5 *
6 * $Header: slcompress.h,v 1.10 89/12/31 08:53:02 van Exp $
7 *
8 * Copyright (c) 1989 Regents of the University of California.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms are permitted
12 * provided that the above copyright notice and this paragraph are
13 * duplicated in all such forms and that any documentation,
14 * advertising materials, and other materials related to such
15 * distribution and use acknowledge that the software was developed
16 * by the University of California, Berkeley. The name of the
17 * University may not be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 *
23 * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989:
24 * - Initial distribution.
25 *
26 *
27 * modified for KA9Q Internet Software Package by
28 * Katie Stevens (dkstevens@ucdavis.edu)
29 * University of California, Davis
30 * Computing Services
31 * - 01-31-90 initial adaptation
32 *
33 * - Feb 1991 Bill_Simpson@um.cc.umich.edu
34 * variable number of conversation slots
35 * allow zero or one slots
36 * separate routines
37 * status display
38 */
39
40/*
41 * Compressed packet format:
42 *
43 * The first octet contains the packet type (top 3 bits), TCP
44 * 'push' bit, and flags that indicate which of the 4 TCP sequence
45 * numbers have changed (bottom 5 bits). The next octet is a
46 * conversation number that associates a saved IP/TCP header with
47 * the compressed packet. The next two octets are the TCP checksum
48 * from the original datagram. The next 0 to 15 octets are
49 * sequence number changes, one change per bit set in the header
50 * (there may be no changes and there are two special cases where
51 * the receiver implicitly knows what changed -- see below).
52 *
53 * There are 5 numbers which can change (they are always inserted
54 * in the following order): TCP urgent pointer, window,
55 * acknowledgment, sequence number and IP ID. (The urgent pointer
56 * is different from the others in that its value is sent, not the
57 * change in value.) Since typical use of SLIP links is biased
58 * toward small packets (see comments on MTU/MSS below), changes
59 * use a variable length coding with one octet for numbers in the
60 * range 1 - 255 and 3 octets (0, MSB, LSB) for numbers in the
61 * range 256 - 65535 or 0. (If the change in sequence number or
62 * ack is more than 65535, an uncompressed packet is sent.)
63 */
64
65/*
66 * Packet types (must not conflict with IP protocol version)
67 *
68 * The top nibble of the first octet is the packet type. There are
69 * three possible types: IP (not proto TCP or tcp with one of the
70 * control flags set); uncompressed TCP (a normal IP/TCP packet but
71 * with the 8-bit protocol field replaced by an 8-bit connection id --
72 * this type of packet syncs the sender & receiver); and compressed
73 * TCP (described above).
74 *
75 * LSB of 4-bit field is TCP "PUSH" bit (a worthless anachronism) and
76 * is logically part of the 4-bit "changes" field that follows. Top
77 * three bits are actual packet type. For backward compatibility
78 * and in the interest of conserving bits, numbers are chosen so the
79 * IP protocol version number (4) which normally appears in this nibble
80 * means "IP packet".
81 */
82
83
84#include <linux/ip.h>
85#include <linux/tcp.h>
86
87/* SLIP compression masks for len/vers byte */
88#define SL_TYPE_IP 0x40
89#define SL_TYPE_UNCOMPRESSED_TCP 0x70
90#define SL_TYPE_COMPRESSED_TCP 0x80
91#define SL_TYPE_ERROR 0x00
92
93/* Bits in first octet of compressed packet */
94#define NEW_C 0x40 /* flag bits for what changed in a packet */
95#define NEW_I 0x20
96#define NEW_S 0x08
97#define NEW_A 0x04
98#define NEW_W 0x02
99#define NEW_U 0x01
100
101/* reserved, special-case values of above */
102#define SPECIAL_I (NEW_S|NEW_W|NEW_U) /* echoed interactive traffic */
103#define SPECIAL_D (NEW_S|NEW_A|NEW_W|NEW_U) /* unidirectional data */
104#define SPECIALS_MASK (NEW_S|NEW_A|NEW_W|NEW_U)
105
106#define TCP_PUSH_BIT 0x10
107
108/*
109 * data type and sizes conversion assumptions:
110 *
111 * VJ code KA9Q style generic
112 * u_char byte_t unsigned char 8 bits
113 * u_short int16 unsigned short 16 bits
114 * u_int int16 unsigned short 16 bits
115 * u_long unsigned long unsigned long 32 bits
116 * int int32 long 32 bits
117 */
118
119typedef __u8 byte_t;
120typedef __u32 int32;
121
122/*
123 * "state" data for each active tcp conversation on the wire. This is
124 * basically a copy of the entire IP/TCP header from the last packet
125 * we saw from the conversation together with a small identifier
126 * the transmit & receive ends of the line use to locate saved header.
127 */
128struct cstate {
129 byte_t cs_this; /* connection id number (xmit) */
130 struct cstate *next; /* next in ring (xmit) */
131 struct iphdr cs_ip; /* ip/tcp hdr from most recent packet */
132 struct tcphdr cs_tcp;
133 unsigned char cs_ipopt[64];
134 unsigned char cs_tcpopt[64];
135 int cs_hsize;
136};
137#define NULLSLSTATE (struct cstate *)0
138
139/*
140 * all the state data for one serial line (we need one of these per line).
141 */
142struct slcompress {
143 struct cstate *tstate; /* transmit connection states (array)*/
144 struct cstate *rstate; /* receive connection states (array)*/
145
146 byte_t tslot_limit; /* highest transmit slot id (0-l)*/
147 byte_t rslot_limit; /* highest receive slot id (0-l)*/
148
149 byte_t xmit_oldest; /* oldest xmit in ring */
150 byte_t xmit_current; /* most recent xmit id */
151 byte_t recv_current; /* most recent rcvd id */
152
153 byte_t flags;
154#define SLF_TOSS 0x01 /* tossing rcvd frames until id received */
155
156 int32 sls_o_nontcp; /* outbound non-TCP packets */
157 int32 sls_o_tcp; /* outbound TCP packets */
158 int32 sls_o_uncompressed; /* outbound uncompressed packets */
159 int32 sls_o_compressed; /* outbound compressed packets */
160 int32 sls_o_searches; /* searches for connection state */
161 int32 sls_o_misses; /* times couldn't find conn. state */
162
163 int32 sls_i_uncompressed; /* inbound uncompressed packets */
164 int32 sls_i_compressed; /* inbound compressed packets */
165 int32 sls_i_error; /* inbound error packets */
166 int32 sls_i_tossed; /* inbound packets tossed because of error */
167
168 int32 sls_i_runt;
169 int32 sls_i_badcheck;
170};
171#define NULLSLCOMPR (struct slcompress *)0
172
173#define __ARGS(x) x
174
175/* In slhc.c: */
176struct slcompress *slhc_init __ARGS((int rslots, int tslots));
177void slhc_free __ARGS((struct slcompress *comp));
178
179int slhc_compress __ARGS((struct slcompress *comp, unsigned char *icp,
180 int isize, unsigned char *ocp, unsigned char **cpp,
181 int compress_cid));
182int slhc_uncompress __ARGS((struct slcompress *comp, unsigned char *icp,
183 int isize));
184int slhc_remember __ARGS((struct slcompress *comp, unsigned char *icp,
185 int isize));
186int slhc_toss __ARGS((struct slcompress *comp));
187
188#endif /* _SLHC_H */
diff --git a/include/net/snmp.h b/include/net/snmp.h
new file mode 100644
index 000000000000..a15ab256276e
--- /dev/null
+++ b/include/net/snmp.h
@@ -0,0 +1,145 @@
1/*
2 *
3 * SNMP MIB entries for the IP subsystem.
4 *
5 * Alan Cox <gw4pts@gw4pts.ampr.org>
6 *
7 * We don't chose to implement SNMP in the kernel (this would
8 * be silly as SNMP is a pain in the backside in places). We do
9 * however need to collect the MIB statistics and export them
10 * out of /proc (eventually)
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version
15 * 2 of the License, or (at your option) any later version.
16 *
17 * $Id: snmp.h,v 1.19 2001/06/14 13:40:46 davem Exp $
18 *
19 */
20
21#ifndef _SNMP_H
22#define _SNMP_H
23
24#include <linux/cache.h>
25#include <linux/snmp.h>
26
27/*
28 * Mibs are stored in array of unsigned long.
29 */
30/*
31 * struct snmp_mib{}
32 * - list of entries for particular API (such as /proc/net/snmp)
33 * - name of entries.
34 */
35struct snmp_mib {
36 char *name;
37 int entry;
38};
39
40#define SNMP_MIB_ITEM(_name,_entry) { \
41 .name = _name, \
42 .entry = _entry, \
43}
44
45#define SNMP_MIB_SENTINEL { \
46 .name = NULL, \
47 .entry = 0, \
48}
49
50/*
51 * We use all unsigned longs. Linux will soon be so reliable that even
52 * these will rapidly get too small 8-). Seriously consider the IpInReceives
53 * count on the 20Gb/s + networks people expect in a few years time!
54 */
55
56/*
57 * The rule for padding:
58 * Best is power of two because then the right structure can be found by a
59 * simple shift. The structure should be always cache line aligned.
60 * gcc needs n=alignto(cachelinesize, popcnt(sizeof(bla_mib))) shift/add
61 * instructions to emulate multiply in case it is not power-of-two.
62 * Currently n is always <=3 for all sizes so simple cache line alignment
63 * is enough.
64 *
65 * The best solution would be a global CPU local area , especially on 64
66 * and 128byte cacheline machine it makes a *lot* of sense -AK
67 */
68
69#define __SNMP_MIB_ALIGN__ ____cacheline_aligned
70
71/* IPstats */
72#define IPSTATS_MIB_MAX __IPSTATS_MIB_MAX
73struct ipstats_mib {
74 unsigned long mibs[IPSTATS_MIB_MAX];
75} __SNMP_MIB_ALIGN__;
76
77/* ICMP */
78#define ICMP_MIB_DUMMY __ICMP_MIB_MAX
79#define ICMP_MIB_MAX (__ICMP_MIB_MAX + 1)
80
81struct icmp_mib {
82 unsigned long mibs[ICMP_MIB_MAX];
83} __SNMP_MIB_ALIGN__;
84
85/* ICMP6 (IPv6-ICMP) */
86#define ICMP6_MIB_MAX __ICMP6_MIB_MAX
87struct icmpv6_mib {
88 unsigned long mibs[ICMP6_MIB_MAX];
89} __SNMP_MIB_ALIGN__;
90
91/* TCP */
92#define TCP_MIB_MAX __TCP_MIB_MAX
93struct tcp_mib {
94 unsigned long mibs[TCP_MIB_MAX];
95} __SNMP_MIB_ALIGN__;
96
97/* UDP */
98#define UDP_MIB_MAX __UDP_MIB_MAX
99struct udp_mib {
100 unsigned long mibs[UDP_MIB_MAX];
101} __SNMP_MIB_ALIGN__;
102
103/* SCTP */
104#define SCTP_MIB_MAX __SCTP_MIB_MAX
105struct sctp_mib {
106 unsigned long mibs[SCTP_MIB_MAX];
107} __SNMP_MIB_ALIGN__;
108
109/* Linux */
110#define LINUX_MIB_MAX __LINUX_MIB_MAX
111struct linux_mib {
112 unsigned long mibs[LINUX_MIB_MAX];
113};
114
115
116/*
117 * FIXME: On x86 and some other CPUs the split into user and softirq parts
118 * is not needed because addl $1,memory is atomic against interrupts (but
119 * atomic_inc would be overkill because of the lock cycles). Wants new
120 * nonlocked_atomic_inc() primitives -AK
121 */
122#define DEFINE_SNMP_STAT(type, name) \
123 __typeof__(type) *name[2]
124#define DECLARE_SNMP_STAT(type, name) \
125 extern __typeof__(type) *name[2]
126
127#define SNMP_STAT_BHPTR(name) (name[0])
128#define SNMP_STAT_USRPTR(name) (name[1])
129
130#define SNMP_INC_STATS_BH(mib, field) \
131 (per_cpu_ptr(mib[0], _smp_processor_id())->mibs[field]++)
132#define SNMP_INC_STATS_OFFSET_BH(mib, field, offset) \
133 (per_cpu_ptr(mib[0], _smp_processor_id())->mibs[field + (offset)]++)
134#define SNMP_INC_STATS_USER(mib, field) \
135 (per_cpu_ptr(mib[1], _smp_processor_id())->mibs[field]++)
136#define SNMP_INC_STATS(mib, field) \
137 (per_cpu_ptr(mib[!in_softirq()], _smp_processor_id())->mibs[field]++)
138#define SNMP_DEC_STATS(mib, field) \
139 (per_cpu_ptr(mib[!in_softirq()], _smp_processor_id())->mibs[field]--)
140#define SNMP_ADD_STATS_BH(mib, field, addend) \
141 (per_cpu_ptr(mib[0], _smp_processor_id())->mibs[field] += addend)
142#define SNMP_ADD_STATS_USER(mib, field, addend) \
143 (per_cpu_ptr(mib[1], _smp_processor_id())->mibs[field] += addend)
144
145#endif
diff --git a/include/net/sock.h b/include/net/sock.h
new file mode 100644
index 000000000000..be81cabd0da3
--- /dev/null
+++ b/include/net/sock.h
@@ -0,0 +1,1297 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the AF_INET socket handler.
7 *
8 * Version: @(#)sock.h 1.0.4 05/13/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * Corey Minyard <wf-rch!minyard@relay.EU.net>
13 * Florian La Roche <flla@stud.uni-sb.de>
14 *
15 * Fixes:
16 * Alan Cox : Volatiles in skbuff pointers. See
17 * skbuff comments. May be overdone,
18 * better to prove they can be removed
19 * than the reverse.
20 * Alan Cox : Added a zapped field for tcp to note
21 * a socket is reset and must stay shut up
22 * Alan Cox : New fields for options
23 * Pauline Middelink : identd support
24 * Alan Cox : Eliminate low level recv/recvfrom
25 * David S. Miller : New socket lookup architecture.
26 * Steve Whitehouse: Default routines for sock_ops
27 * Arnaldo C. Melo : removed net_pinfo, tp_pinfo and made
28 * protinfo be just a void pointer, as the
29 * protocol specific parts were moved to
30 * respective headers and ipv4/v6, etc now
31 * use private slabcaches for its socks
32 * Pedro Hortas : New flags field for socket options
33 *
34 *
35 * This program is free software; you can redistribute it and/or
36 * modify it under the terms of the GNU General Public License
37 * as published by the Free Software Foundation; either version
38 * 2 of the License, or (at your option) any later version.
39 */
40#ifndef _SOCK_H
41#define _SOCK_H
42
43#include <linux/config.h>
44#include <linux/list.h>
45#include <linux/timer.h>
46#include <linux/cache.h>
47#include <linux/module.h>
48#include <linux/netdevice.h>
49#include <linux/skbuff.h> /* struct sk_buff */
50#include <linux/security.h>
51
52#include <linux/filter.h>
53
54#include <asm/atomic.h>
55#include <net/dst.h>
56#include <net/checksum.h>
57
58/*
59 * This structure really needs to be cleaned up.
60 * Most of it is for TCP, and not used by any of
61 * the other protocols.
62 */
63
64/* Define this to get the SOCK_DBG debugging facility. */
65#define SOCK_DEBUGGING
66#ifdef SOCK_DEBUGGING
67#define SOCK_DEBUG(sk, msg...) do { if ((sk) && sock_flag((sk), SOCK_DBG)) \
68 printk(KERN_DEBUG msg); } while (0)
69#else
70#define SOCK_DEBUG(sk, msg...) do { } while (0)
71#endif
72
73/* This is the per-socket lock. The spinlock provides a synchronization
74 * between user contexts and software interrupt processing, whereas the
75 * mini-semaphore synchronizes multiple users amongst themselves.
76 */
77struct sock_iocb;
78typedef struct {
79 spinlock_t slock;
80 struct sock_iocb *owner;
81 wait_queue_head_t wq;
82} socket_lock_t;
83
84#define sock_lock_init(__sk) \
85do { spin_lock_init(&((__sk)->sk_lock.slock)); \
86 (__sk)->sk_lock.owner = NULL; \
87 init_waitqueue_head(&((__sk)->sk_lock.wq)); \
88} while(0)
89
90struct sock;
91
92/**
93 * struct sock_common - minimal network layer representation of sockets
94 * @skc_family - network address family
95 * @skc_state - Connection state
96 * @skc_reuse - %SO_REUSEADDR setting
97 * @skc_bound_dev_if - bound device index if != 0
98 * @skc_node - main hash linkage for various protocol lookup tables
99 * @skc_bind_node - bind hash linkage for various protocol lookup tables
100 * @skc_refcnt - reference count
101 *
102 * This is the minimal network layer representation of sockets, the header
103 * for struct sock and struct tcp_tw_bucket.
104 */
105struct sock_common {
106 unsigned short skc_family;
107 volatile unsigned char skc_state;
108 unsigned char skc_reuse;
109 int skc_bound_dev_if;
110 struct hlist_node skc_node;
111 struct hlist_node skc_bind_node;
112 atomic_t skc_refcnt;
113};
114
115/**
116 * struct sock - network layer representation of sockets
117 * @__sk_common - shared layout with tcp_tw_bucket
118 * @sk_shutdown - mask of %SEND_SHUTDOWN and/or %RCV_SHUTDOWN
119 * @sk_userlocks - %SO_SNDBUF and %SO_RCVBUF settings
120 * @sk_lock - synchronizer
121 * @sk_rcvbuf - size of receive buffer in bytes
122 * @sk_sleep - sock wait queue
123 * @sk_dst_cache - destination cache
124 * @sk_dst_lock - destination cache lock
125 * @sk_policy - flow policy
126 * @sk_rmem_alloc - receive queue bytes committed
127 * @sk_receive_queue - incoming packets
128 * @sk_wmem_alloc - transmit queue bytes committed
129 * @sk_write_queue - Packet sending queue
130 * @sk_omem_alloc - "o" is "option" or "other"
131 * @sk_wmem_queued - persistent queue size
132 * @sk_forward_alloc - space allocated forward
133 * @sk_allocation - allocation mode
134 * @sk_sndbuf - size of send buffer in bytes
135 * @sk_flags - %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, %SO_OOBINLINE settings
136 * @sk_no_check - %SO_NO_CHECK setting, wether or not checkup packets
137 * @sk_route_caps - route capabilities (e.g. %NETIF_F_TSO)
138 * @sk_lingertime - %SO_LINGER l_linger setting
139 * @sk_hashent - hash entry in several tables (e.g. tcp_ehash)
140 * @sk_backlog - always used with the per-socket spinlock held
141 * @sk_callback_lock - used with the callbacks in the end of this struct
142 * @sk_error_queue - rarely used
143 * @sk_prot - protocol handlers inside a network family
144 * @sk_err - last error
145 * @sk_err_soft - errors that don't cause failure but are the cause of a persistent failure not just 'timed out'
146 * @sk_ack_backlog - current listen backlog
147 * @sk_max_ack_backlog - listen backlog set in listen()
148 * @sk_priority - %SO_PRIORITY setting
149 * @sk_type - socket type (%SOCK_STREAM, etc)
150 * @sk_protocol - which protocol this socket belongs in this network family
151 * @sk_peercred - %SO_PEERCRED setting
152 * @sk_rcvlowat - %SO_RCVLOWAT setting
153 * @sk_rcvtimeo - %SO_RCVTIMEO setting
154 * @sk_sndtimeo - %SO_SNDTIMEO setting
155 * @sk_filter - socket filtering instructions
156 * @sk_protinfo - private area, net family specific, when not using slab
157 * @sk_timer - sock cleanup timer
158 * @sk_stamp - time stamp of last packet received
159 * @sk_socket - Identd and reporting IO signals
160 * @sk_user_data - RPC layer private data
161 * @sk_sndmsg_page - cached page for sendmsg
162 * @sk_sndmsg_off - cached offset for sendmsg
163 * @sk_send_head - front of stuff to transmit
164 * @sk_write_pending - a write to stream socket waits to start
165 * @sk_state_change - callback to indicate change in the state of the sock
166 * @sk_data_ready - callback to indicate there is data to be processed
167 * @sk_write_space - callback to indicate there is bf sending space available
168 * @sk_error_report - callback to indicate errors (e.g. %MSG_ERRQUEUE)
169 * @sk_backlog_rcv - callback to process the backlog
170 * @sk_destruct - called at sock freeing time, i.e. when all refcnt == 0
171 */
172struct sock {
173 /*
174 * Now struct tcp_tw_bucket also uses sock_common, so please just
175 * don't add nothing before this first member (__sk_common) --acme
176 */
177 struct sock_common __sk_common;
178#define sk_family __sk_common.skc_family
179#define sk_state __sk_common.skc_state
180#define sk_reuse __sk_common.skc_reuse
181#define sk_bound_dev_if __sk_common.skc_bound_dev_if
182#define sk_node __sk_common.skc_node
183#define sk_bind_node __sk_common.skc_bind_node
184#define sk_refcnt __sk_common.skc_refcnt
185 unsigned char sk_shutdown : 2,
186 sk_no_check : 2,
187 sk_userlocks : 4;
188 unsigned char sk_protocol;
189 unsigned short sk_type;
190 int sk_rcvbuf;
191 socket_lock_t sk_lock;
192 wait_queue_head_t *sk_sleep;
193 struct dst_entry *sk_dst_cache;
194 struct xfrm_policy *sk_policy[2];
195 rwlock_t sk_dst_lock;
196 atomic_t sk_rmem_alloc;
197 atomic_t sk_wmem_alloc;
198 atomic_t sk_omem_alloc;
199 struct sk_buff_head sk_receive_queue;
200 struct sk_buff_head sk_write_queue;
201 int sk_wmem_queued;
202 int sk_forward_alloc;
203 unsigned int sk_allocation;
204 int sk_sndbuf;
205 int sk_route_caps;
206 int sk_hashent;
207 unsigned long sk_flags;
208 unsigned long sk_lingertime;
209 /*
210 * The backlog queue is special, it is always used with
211 * the per-socket spinlock held and requires low latency
212 * access. Therefore we special case it's implementation.
213 */
214 struct {
215 struct sk_buff *head;
216 struct sk_buff *tail;
217 } sk_backlog;
218 struct sk_buff_head sk_error_queue;
219 struct proto *sk_prot;
220 rwlock_t sk_callback_lock;
221 int sk_err,
222 sk_err_soft;
223 unsigned short sk_ack_backlog;
224 unsigned short sk_max_ack_backlog;
225 __u32 sk_priority;
226 struct ucred sk_peercred;
227 int sk_rcvlowat;
228 long sk_rcvtimeo;
229 long sk_sndtimeo;
230 struct sk_filter *sk_filter;
231 void *sk_protinfo;
232 struct timer_list sk_timer;
233 struct timeval sk_stamp;
234 struct socket *sk_socket;
235 void *sk_user_data;
236 struct page *sk_sndmsg_page;
237 struct sk_buff *sk_send_head;
238 __u32 sk_sndmsg_off;
239 int sk_write_pending;
240 void *sk_security;
241 void (*sk_state_change)(struct sock *sk);
242 void (*sk_data_ready)(struct sock *sk, int bytes);
243 void (*sk_write_space)(struct sock *sk);
244 void (*sk_error_report)(struct sock *sk);
245 int (*sk_backlog_rcv)(struct sock *sk,
246 struct sk_buff *skb);
247 void (*sk_destruct)(struct sock *sk);
248};
249
250/*
251 * Hashed lists helper routines
252 */
253static inline struct sock *__sk_head(struct hlist_head *head)
254{
255 return hlist_entry(head->first, struct sock, sk_node);
256}
257
258static inline struct sock *sk_head(struct hlist_head *head)
259{
260 return hlist_empty(head) ? NULL : __sk_head(head);
261}
262
263static inline struct sock *sk_next(struct sock *sk)
264{
265 return sk->sk_node.next ?
266 hlist_entry(sk->sk_node.next, struct sock, sk_node) : NULL;
267}
268
269static inline int sk_unhashed(struct sock *sk)
270{
271 return hlist_unhashed(&sk->sk_node);
272}
273
274static inline int sk_hashed(struct sock *sk)
275{
276 return sk->sk_node.pprev != NULL;
277}
278
279static __inline__ void sk_node_init(struct hlist_node *node)
280{
281 node->pprev = NULL;
282}
283
284static __inline__ void __sk_del_node(struct sock *sk)
285{
286 __hlist_del(&sk->sk_node);
287}
288
289static __inline__ int __sk_del_node_init(struct sock *sk)
290{
291 if (sk_hashed(sk)) {
292 __sk_del_node(sk);
293 sk_node_init(&sk->sk_node);
294 return 1;
295 }
296 return 0;
297}
298
299/* Grab socket reference count. This operation is valid only
300 when sk is ALREADY grabbed f.e. it is found in hash table
301 or a list and the lookup is made under lock preventing hash table
302 modifications.
303 */
304
305static inline void sock_hold(struct sock *sk)
306{
307 atomic_inc(&sk->sk_refcnt);
308}
309
310/* Ungrab socket in the context, which assumes that socket refcnt
311 cannot hit zero, f.e. it is true in context of any socketcall.
312 */
313static inline void __sock_put(struct sock *sk)
314{
315 atomic_dec(&sk->sk_refcnt);
316}
317
318static __inline__ int sk_del_node_init(struct sock *sk)
319{
320 int rc = __sk_del_node_init(sk);
321
322 if (rc) {
323 /* paranoid for a while -acme */
324 WARN_ON(atomic_read(&sk->sk_refcnt) == 1);
325 __sock_put(sk);
326 }
327 return rc;
328}
329
330static __inline__ void __sk_add_node(struct sock *sk, struct hlist_head *list)
331{
332 hlist_add_head(&sk->sk_node, list);
333}
334
335static __inline__ void sk_add_node(struct sock *sk, struct hlist_head *list)
336{
337 sock_hold(sk);
338 __sk_add_node(sk, list);
339}
340
341static __inline__ void __sk_del_bind_node(struct sock *sk)
342{
343 __hlist_del(&sk->sk_bind_node);
344}
345
346static __inline__ void sk_add_bind_node(struct sock *sk,
347 struct hlist_head *list)
348{
349 hlist_add_head(&sk->sk_bind_node, list);
350}
351
352#define sk_for_each(__sk, node, list) \
353 hlist_for_each_entry(__sk, node, list, sk_node)
354#define sk_for_each_from(__sk, node) \
355 if (__sk && ({ node = &(__sk)->sk_node; 1; })) \
356 hlist_for_each_entry_from(__sk, node, sk_node)
357#define sk_for_each_continue(__sk, node) \
358 if (__sk && ({ node = &(__sk)->sk_node; 1; })) \
359 hlist_for_each_entry_continue(__sk, node, sk_node)
360#define sk_for_each_safe(__sk, node, tmp, list) \
361 hlist_for_each_entry_safe(__sk, node, tmp, list, sk_node)
362#define sk_for_each_bound(__sk, node, list) \
363 hlist_for_each_entry(__sk, node, list, sk_bind_node)
364
365/* Sock flags */
366enum sock_flags {
367 SOCK_DEAD,
368 SOCK_DONE,
369 SOCK_URGINLINE,
370 SOCK_KEEPOPEN,
371 SOCK_LINGER,
372 SOCK_DESTROY,
373 SOCK_BROADCAST,
374 SOCK_TIMESTAMP,
375 SOCK_ZAPPED,
376 SOCK_USE_WRITE_QUEUE, /* whether to call sk->sk_write_space in sock_wfree */
377 SOCK_DBG, /* %SO_DEBUG setting */
378 SOCK_RCVTSTAMP, /* %SO_TIMESTAMP setting */
379 SOCK_NO_LARGESEND, /* whether to sent large segments or not */
380 SOCK_LOCALROUTE, /* route locally only, %SO_DONTROUTE setting */
381 SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */
382};
383
384static inline void sock_set_flag(struct sock *sk, enum sock_flags flag)
385{
386 __set_bit(flag, &sk->sk_flags);
387}
388
389static inline void sock_reset_flag(struct sock *sk, enum sock_flags flag)
390{
391 __clear_bit(flag, &sk->sk_flags);
392}
393
394static inline int sock_flag(struct sock *sk, enum sock_flags flag)
395{
396 return test_bit(flag, &sk->sk_flags);
397}
398
399static inline void sk_acceptq_removed(struct sock *sk)
400{
401 sk->sk_ack_backlog--;
402}
403
404static inline void sk_acceptq_added(struct sock *sk)
405{
406 sk->sk_ack_backlog++;
407}
408
409static inline int sk_acceptq_is_full(struct sock *sk)
410{
411 return sk->sk_ack_backlog > sk->sk_max_ack_backlog;
412}
413
414/*
415 * Compute minimal free write space needed to queue new packets.
416 */
417static inline int sk_stream_min_wspace(struct sock *sk)
418{
419 return sk->sk_wmem_queued / 2;
420}
421
422static inline int sk_stream_wspace(struct sock *sk)
423{
424 return sk->sk_sndbuf - sk->sk_wmem_queued;
425}
426
427extern void sk_stream_write_space(struct sock *sk);
428
429static inline int sk_stream_memory_free(struct sock *sk)
430{
431 return sk->sk_wmem_queued < sk->sk_sndbuf;
432}
433
434extern void sk_stream_rfree(struct sk_buff *skb);
435
436static inline void sk_stream_set_owner_r(struct sk_buff *skb, struct sock *sk)
437{
438 skb->sk = sk;
439 skb->destructor = sk_stream_rfree;
440 atomic_add(skb->truesize, &sk->sk_rmem_alloc);
441 sk->sk_forward_alloc -= skb->truesize;
442}
443
444static inline void sk_stream_free_skb(struct sock *sk, struct sk_buff *skb)
445{
446 sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
447 sk->sk_wmem_queued -= skb->truesize;
448 sk->sk_forward_alloc += skb->truesize;
449 __kfree_skb(skb);
450}
451
452/* The per-socket spinlock must be held here. */
453#define sk_add_backlog(__sk, __skb) \
454do { if (!(__sk)->sk_backlog.tail) { \
455 (__sk)->sk_backlog.head = \
456 (__sk)->sk_backlog.tail = (__skb); \
457 } else { \
458 ((__sk)->sk_backlog.tail)->next = (__skb); \
459 (__sk)->sk_backlog.tail = (__skb); \
460 } \
461 (__skb)->next = NULL; \
462} while(0)
463
464#define sk_wait_event(__sk, __timeo, __condition) \
465({ int rc; \
466 release_sock(__sk); \
467 rc = __condition; \
468 if (!rc) { \
469 *(__timeo) = schedule_timeout(*(__timeo)); \
470 rc = __condition; \
471 } \
472 lock_sock(__sk); \
473 rc; \
474})
475
476extern int sk_stream_wait_connect(struct sock *sk, long *timeo_p);
477extern int sk_stream_wait_memory(struct sock *sk, long *timeo_p);
478extern void sk_stream_wait_close(struct sock *sk, long timeo_p);
479extern int sk_stream_error(struct sock *sk, int flags, int err);
480extern void sk_stream_kill_queues(struct sock *sk);
481
482extern int sk_wait_data(struct sock *sk, long *timeo);
483
484/* Networking protocol blocks we attach to sockets.
485 * socket layer -> transport layer interface
486 * transport -> network interface is defined by struct inet_proto
487 */
488struct proto {
489 void (*close)(struct sock *sk,
490 long timeout);
491 int (*connect)(struct sock *sk,
492 struct sockaddr *uaddr,
493 int addr_len);
494 int (*disconnect)(struct sock *sk, int flags);
495
496 struct sock * (*accept) (struct sock *sk, int flags, int *err);
497
498 int (*ioctl)(struct sock *sk, int cmd,
499 unsigned long arg);
500 int (*init)(struct sock *sk);
501 int (*destroy)(struct sock *sk);
502 void (*shutdown)(struct sock *sk, int how);
503 int (*setsockopt)(struct sock *sk, int level,
504 int optname, char __user *optval,
505 int optlen);
506 int (*getsockopt)(struct sock *sk, int level,
507 int optname, char __user *optval,
508 int __user *option);
509 int (*sendmsg)(struct kiocb *iocb, struct sock *sk,
510 struct msghdr *msg, size_t len);
511 int (*recvmsg)(struct kiocb *iocb, struct sock *sk,
512 struct msghdr *msg,
513 size_t len, int noblock, int flags,
514 int *addr_len);
515 int (*sendpage)(struct sock *sk, struct page *page,
516 int offset, size_t size, int flags);
517 int (*bind)(struct sock *sk,
518 struct sockaddr *uaddr, int addr_len);
519
520 int (*backlog_rcv) (struct sock *sk,
521 struct sk_buff *skb);
522
523 /* Keeping track of sk's, looking them up, and port selection methods. */
524 void (*hash)(struct sock *sk);
525 void (*unhash)(struct sock *sk);
526 int (*get_port)(struct sock *sk, unsigned short snum);
527
528 /* Memory pressure */
529 void (*enter_memory_pressure)(void);
530 atomic_t *memory_allocated; /* Current allocated memory. */
531 atomic_t *sockets_allocated; /* Current number of sockets. */
532 /*
533 * Pressure flag: try to collapse.
534 * Technical note: it is used by multiple contexts non atomically.
535 * All the sk_stream_mem_schedule() is of this nature: accounting
536 * is strict, actions are advisory and have some latency.
537 */
538 int *memory_pressure;
539 int *sysctl_mem;
540 int *sysctl_wmem;
541 int *sysctl_rmem;
542 int max_header;
543
544 kmem_cache_t *slab;
545 unsigned int obj_size;
546
547 struct module *owner;
548
549 char name[32];
550
551 struct list_head node;
552
553 struct {
554 int inuse;
555 u8 __pad[SMP_CACHE_BYTES - sizeof(int)];
556 } stats[NR_CPUS];
557};
558
559extern int proto_register(struct proto *prot, int alloc_slab);
560extern void proto_unregister(struct proto *prot);
561
562/* Called with local bh disabled */
563static __inline__ void sock_prot_inc_use(struct proto *prot)
564{
565 prot->stats[smp_processor_id()].inuse++;
566}
567
568static __inline__ void sock_prot_dec_use(struct proto *prot)
569{
570 prot->stats[smp_processor_id()].inuse--;
571}
572
573/* About 10 seconds */
574#define SOCK_DESTROY_TIME (10*HZ)
575
576/* Sockets 0-1023 can't be bound to unless you are superuser */
577#define PROT_SOCK 1024
578
579#define SHUTDOWN_MASK 3
580#define RCV_SHUTDOWN 1
581#define SEND_SHUTDOWN 2
582
583#define SOCK_SNDBUF_LOCK 1
584#define SOCK_RCVBUF_LOCK 2
585#define SOCK_BINDADDR_LOCK 4
586#define SOCK_BINDPORT_LOCK 8
587
588/* sock_iocb: used to kick off async processing of socket ios */
589struct sock_iocb {
590 struct list_head list;
591
592 int flags;
593 int size;
594 struct socket *sock;
595 struct sock *sk;
596 struct scm_cookie *scm;
597 struct msghdr *msg, async_msg;
598 struct iovec async_iov;
599 struct kiocb *kiocb;
600};
601
602static inline struct sock_iocb *kiocb_to_siocb(struct kiocb *iocb)
603{
604 return (struct sock_iocb *)iocb->private;
605}
606
607static inline struct kiocb *siocb_to_kiocb(struct sock_iocb *si)
608{
609 return si->kiocb;
610}
611
612struct socket_alloc {
613 struct socket socket;
614 struct inode vfs_inode;
615};
616
617static inline struct socket *SOCKET_I(struct inode *inode)
618{
619 return &container_of(inode, struct socket_alloc, vfs_inode)->socket;
620}
621
622static inline struct inode *SOCK_INODE(struct socket *socket)
623{
624 return &container_of(socket, struct socket_alloc, socket)->vfs_inode;
625}
626
627extern void __sk_stream_mem_reclaim(struct sock *sk);
628extern int sk_stream_mem_schedule(struct sock *sk, int size, int kind);
629
630#define SK_STREAM_MEM_QUANTUM ((int)PAGE_SIZE)
631
632static inline int sk_stream_pages(int amt)
633{
634 return (amt + SK_STREAM_MEM_QUANTUM - 1) / SK_STREAM_MEM_QUANTUM;
635}
636
637static inline void sk_stream_mem_reclaim(struct sock *sk)
638{
639 if (sk->sk_forward_alloc >= SK_STREAM_MEM_QUANTUM)
640 __sk_stream_mem_reclaim(sk);
641}
642
643static inline void sk_stream_writequeue_purge(struct sock *sk)
644{
645 struct sk_buff *skb;
646
647 while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL)
648 sk_stream_free_skb(sk, skb);
649 sk_stream_mem_reclaim(sk);
650}
651
652static inline int sk_stream_rmem_schedule(struct sock *sk, struct sk_buff *skb)
653{
654 return (int)skb->truesize <= sk->sk_forward_alloc ||
655 sk_stream_mem_schedule(sk, skb->truesize, 1);
656}
657
658/* Used by processes to "lock" a socket state, so that
659 * interrupts and bottom half handlers won't change it
660 * from under us. It essentially blocks any incoming
661 * packets, so that we won't get any new data or any
662 * packets that change the state of the socket.
663 *
664 * While locked, BH processing will add new packets to
665 * the backlog queue. This queue is processed by the
666 * owner of the socket lock right before it is released.
667 *
668 * Since ~2.3.5 it is also exclusive sleep lock serializing
669 * accesses from user process context.
670 */
671#define sock_owned_by_user(sk) ((sk)->sk_lock.owner)
672
673extern void FASTCALL(lock_sock(struct sock *sk));
674extern void FASTCALL(release_sock(struct sock *sk));
675
676/* BH context may only use the following locking interface. */
677#define bh_lock_sock(__sk) spin_lock(&((__sk)->sk_lock.slock))
678#define bh_unlock_sock(__sk) spin_unlock(&((__sk)->sk_lock.slock))
679
680extern struct sock *sk_alloc(int family, int priority,
681 struct proto *prot, int zero_it);
682extern void sk_free(struct sock *sk);
683
684extern struct sk_buff *sock_wmalloc(struct sock *sk,
685 unsigned long size, int force,
686 int priority);
687extern struct sk_buff *sock_rmalloc(struct sock *sk,
688 unsigned long size, int force,
689 int priority);
690extern void sock_wfree(struct sk_buff *skb);
691extern void sock_rfree(struct sk_buff *skb);
692
693extern int sock_setsockopt(struct socket *sock, int level,
694 int op, char __user *optval,
695 int optlen);
696
697extern int sock_getsockopt(struct socket *sock, int level,
698 int op, char __user *optval,
699 int __user *optlen);
700extern struct sk_buff *sock_alloc_send_skb(struct sock *sk,
701 unsigned long size,
702 int noblock,
703 int *errcode);
704extern void *sock_kmalloc(struct sock *sk, int size, int priority);
705extern void sock_kfree_s(struct sock *sk, void *mem, int size);
706extern void sk_send_sigurg(struct sock *sk);
707
708/*
709 * Functions to fill in entries in struct proto_ops when a protocol
710 * does not implement a particular function.
711 */
712extern int sock_no_bind(struct socket *,
713 struct sockaddr *, int);
714extern int sock_no_connect(struct socket *,
715 struct sockaddr *, int, int);
716extern int sock_no_socketpair(struct socket *,
717 struct socket *);
718extern int sock_no_accept(struct socket *,
719 struct socket *, int);
720extern int sock_no_getname(struct socket *,
721 struct sockaddr *, int *, int);
722extern unsigned int sock_no_poll(struct file *, struct socket *,
723 struct poll_table_struct *);
724extern int sock_no_ioctl(struct socket *, unsigned int,
725 unsigned long);
726extern int sock_no_listen(struct socket *, int);
727extern int sock_no_shutdown(struct socket *, int);
728extern int sock_no_getsockopt(struct socket *, int , int,
729 char __user *, int __user *);
730extern int sock_no_setsockopt(struct socket *, int, int,
731 char __user *, int);
732extern int sock_no_sendmsg(struct kiocb *, struct socket *,
733 struct msghdr *, size_t);
734extern int sock_no_recvmsg(struct kiocb *, struct socket *,
735 struct msghdr *, size_t, int);
736extern int sock_no_mmap(struct file *file,
737 struct socket *sock,
738 struct vm_area_struct *vma);
739extern ssize_t sock_no_sendpage(struct socket *sock,
740 struct page *page,
741 int offset, size_t size,
742 int flags);
743
744/*
745 * Functions to fill in entries in struct proto_ops when a protocol
746 * uses the inet style.
747 */
748extern int sock_common_getsockopt(struct socket *sock, int level, int optname,
749 char __user *optval, int __user *optlen);
750extern int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock,
751 struct msghdr *msg, size_t size, int flags);
752extern int sock_common_setsockopt(struct socket *sock, int level, int optname,
753 char __user *optval, int optlen);
754
755extern void sk_common_release(struct sock *sk);
756
757/*
758 * Default socket callbacks and setup code
759 */
760
761/* Initialise core socket variables */
762extern void sock_init_data(struct socket *sock, struct sock *sk);
763
764/**
765 * sk_filter - run a packet through a socket filter
766 * @sk: sock associated with &sk_buff
767 * @skb: buffer to filter
768 * @needlock: set to 1 if the sock is not locked by caller.
769 *
770 * Run the filter code and then cut skb->data to correct size returned by
771 * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller
772 * than pkt_len we keep whole skb->data. This is the socket level
773 * wrapper to sk_run_filter. It returns 0 if the packet should
774 * be accepted or -EPERM if the packet should be tossed.
775 *
776 */
777
778static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock)
779{
780 int err;
781
782 err = security_sock_rcv_skb(sk, skb);
783 if (err)
784 return err;
785
786 if (sk->sk_filter) {
787 struct sk_filter *filter;
788
789 if (needlock)
790 bh_lock_sock(sk);
791
792 filter = sk->sk_filter;
793 if (filter) {
794 int pkt_len = sk_run_filter(skb, filter->insns,
795 filter->len);
796 if (!pkt_len)
797 err = -EPERM;
798 else
799 skb_trim(skb, pkt_len);
800 }
801
802 if (needlock)
803 bh_unlock_sock(sk);
804 }
805 return err;
806}
807
808/**
809 * sk_filter_release: Release a socket filter
810 * @sk: socket
811 * @fp: filter to remove
812 *
813 * Remove a filter from a socket and release its resources.
814 */
815
816static inline void sk_filter_release(struct sock *sk, struct sk_filter *fp)
817{
818 unsigned int size = sk_filter_len(fp);
819
820 atomic_sub(size, &sk->sk_omem_alloc);
821
822 if (atomic_dec_and_test(&fp->refcnt))
823 kfree(fp);
824}
825
826static inline void sk_filter_charge(struct sock *sk, struct sk_filter *fp)
827{
828 atomic_inc(&fp->refcnt);
829 atomic_add(sk_filter_len(fp), &sk->sk_omem_alloc);
830}
831
832/*
833 * Socket reference counting postulates.
834 *
835 * * Each user of socket SHOULD hold a reference count.
836 * * Each access point to socket (an hash table bucket, reference from a list,
837 * running timer, skb in flight MUST hold a reference count.
838 * * When reference count hits 0, it means it will never increase back.
839 * * When reference count hits 0, it means that no references from
840 * outside exist to this socket and current process on current CPU
841 * is last user and may/should destroy this socket.
842 * * sk_free is called from any context: process, BH, IRQ. When
843 * it is called, socket has no references from outside -> sk_free
844 * may release descendant resources allocated by the socket, but
845 * to the time when it is called, socket is NOT referenced by any
846 * hash tables, lists etc.
847 * * Packets, delivered from outside (from network or from another process)
848 * and enqueued on receive/error queues SHOULD NOT grab reference count,
849 * when they sit in queue. Otherwise, packets will leak to hole, when
850 * socket is looked up by one cpu and unhasing is made by another CPU.
851 * It is true for udp/raw, netlink (leak to receive and error queues), tcp
852 * (leak to backlog). Packet socket does all the processing inside
853 * BR_NETPROTO_LOCK, so that it has not this race condition. UNIX sockets
854 * use separate SMP lock, so that they are prone too.
855 */
856
857/* Ungrab socket and destroy it, if it was the last reference. */
858static inline void sock_put(struct sock *sk)
859{
860 if (atomic_dec_and_test(&sk->sk_refcnt))
861 sk_free(sk);
862}
863
864/* Detach socket from process context.
865 * Announce socket dead, detach it from wait queue and inode.
866 * Note that parent inode held reference count on this struct sock,
867 * we do not release it in this function, because protocol
868 * probably wants some additional cleanups or even continuing
869 * to work with this socket (TCP).
870 */
871static inline void sock_orphan(struct sock *sk)
872{
873 write_lock_bh(&sk->sk_callback_lock);
874 sock_set_flag(sk, SOCK_DEAD);
875 sk->sk_socket = NULL;
876 sk->sk_sleep = NULL;
877 write_unlock_bh(&sk->sk_callback_lock);
878}
879
880static inline void sock_graft(struct sock *sk, struct socket *parent)
881{
882 write_lock_bh(&sk->sk_callback_lock);
883 sk->sk_sleep = &parent->wait;
884 parent->sk = sk;
885 sk->sk_socket = parent;
886 write_unlock_bh(&sk->sk_callback_lock);
887}
888
889extern int sock_i_uid(struct sock *sk);
890extern unsigned long sock_i_ino(struct sock *sk);
891
892static inline struct dst_entry *
893__sk_dst_get(struct sock *sk)
894{
895 return sk->sk_dst_cache;
896}
897
898static inline struct dst_entry *
899sk_dst_get(struct sock *sk)
900{
901 struct dst_entry *dst;
902
903 read_lock(&sk->sk_dst_lock);
904 dst = sk->sk_dst_cache;
905 if (dst)
906 dst_hold(dst);
907 read_unlock(&sk->sk_dst_lock);
908 return dst;
909}
910
911static inline void
912__sk_dst_set(struct sock *sk, struct dst_entry *dst)
913{
914 struct dst_entry *old_dst;
915
916 old_dst = sk->sk_dst_cache;
917 sk->sk_dst_cache = dst;
918 dst_release(old_dst);
919}
920
921static inline void
922sk_dst_set(struct sock *sk, struct dst_entry *dst)
923{
924 write_lock(&sk->sk_dst_lock);
925 __sk_dst_set(sk, dst);
926 write_unlock(&sk->sk_dst_lock);
927}
928
929static inline void
930__sk_dst_reset(struct sock *sk)
931{
932 struct dst_entry *old_dst;
933
934 old_dst = sk->sk_dst_cache;
935 sk->sk_dst_cache = NULL;
936 dst_release(old_dst);
937}
938
939static inline void
940sk_dst_reset(struct sock *sk)
941{
942 write_lock(&sk->sk_dst_lock);
943 __sk_dst_reset(sk);
944 write_unlock(&sk->sk_dst_lock);
945}
946
947static inline struct dst_entry *
948__sk_dst_check(struct sock *sk, u32 cookie)
949{
950 struct dst_entry *dst = sk->sk_dst_cache;
951
952 if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
953 sk->sk_dst_cache = NULL;
954 dst_release(dst);
955 return NULL;
956 }
957
958 return dst;
959}
960
961static inline struct dst_entry *
962sk_dst_check(struct sock *sk, u32 cookie)
963{
964 struct dst_entry *dst = sk_dst_get(sk);
965
966 if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
967 sk_dst_reset(sk);
968 dst_release(dst);
969 return NULL;
970 }
971
972 return dst;
973}
974
975static inline void sk_charge_skb(struct sock *sk, struct sk_buff *skb)
976{
977 sk->sk_wmem_queued += skb->truesize;
978 sk->sk_forward_alloc -= skb->truesize;
979}
980
981static inline int skb_copy_to_page(struct sock *sk, char __user *from,
982 struct sk_buff *skb, struct page *page,
983 int off, int copy)
984{
985 if (skb->ip_summed == CHECKSUM_NONE) {
986 int err = 0;
987 unsigned int csum = csum_and_copy_from_user(from,
988 page_address(page) + off,
989 copy, 0, &err);
990 if (err)
991 return err;
992 skb->csum = csum_block_add(skb->csum, csum, skb->len);
993 } else if (copy_from_user(page_address(page) + off, from, copy))
994 return -EFAULT;
995
996 skb->len += copy;
997 skb->data_len += copy;
998 skb->truesize += copy;
999 sk->sk_wmem_queued += copy;
1000 sk->sk_forward_alloc -= copy;
1001 return 0;
1002}
1003
1004/*
1005 * Queue a received datagram if it will fit. Stream and sequenced
1006 * protocols can't normally use this as they need to fit buffers in
1007 * and play with them.
1008 *
1009 * Inlined as it's very short and called for pretty much every
1010 * packet ever received.
1011 */
1012
1013static inline void skb_set_owner_w(struct sk_buff *skb, struct sock *sk)
1014{
1015 sock_hold(sk);
1016 skb->sk = sk;
1017 skb->destructor = sock_wfree;
1018 atomic_add(skb->truesize, &sk->sk_wmem_alloc);
1019}
1020
1021static inline void skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
1022{
1023 skb->sk = sk;
1024 skb->destructor = sock_rfree;
1025 atomic_add(skb->truesize, &sk->sk_rmem_alloc);
1026}
1027
1028extern void sk_reset_timer(struct sock *sk, struct timer_list* timer,
1029 unsigned long expires);
1030
1031extern void sk_stop_timer(struct sock *sk, struct timer_list* timer);
1032
1033static inline int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
1034{
1035 int err = 0;
1036 int skb_len;
1037
1038 /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
1039 number of warnings when compiling with -W --ANK
1040 */
1041 if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
1042 (unsigned)sk->sk_rcvbuf) {
1043 err = -ENOMEM;
1044 goto out;
1045 }
1046
1047 /* It would be deadlock, if sock_queue_rcv_skb is used
1048 with socket lock! We assume that users of this
1049 function are lock free.
1050 */
1051 err = sk_filter(sk, skb, 1);
1052 if (err)
1053 goto out;
1054
1055 skb->dev = NULL;
1056 skb_set_owner_r(skb, sk);
1057
1058 /* Cache the SKB length before we tack it onto the receive
1059 * queue. Once it is added it no longer belongs to us and
1060 * may be freed by other threads of control pulling packets
1061 * from the queue.
1062 */
1063 skb_len = skb->len;
1064
1065 skb_queue_tail(&sk->sk_receive_queue, skb);
1066
1067 if (!sock_flag(sk, SOCK_DEAD))
1068 sk->sk_data_ready(sk, skb_len);
1069out:
1070 return err;
1071}
1072
1073static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
1074{
1075 /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
1076 number of warnings when compiling with -W --ANK
1077 */
1078 if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
1079 (unsigned)sk->sk_rcvbuf)
1080 return -ENOMEM;
1081 skb_set_owner_r(skb, sk);
1082 skb_queue_tail(&sk->sk_error_queue, skb);
1083 if (!sock_flag(sk, SOCK_DEAD))
1084 sk->sk_data_ready(sk, skb->len);
1085 return 0;
1086}
1087
1088/*
1089 * Recover an error report and clear atomically
1090 */
1091
1092static inline int sock_error(struct sock *sk)
1093{
1094 int err = xchg(&sk->sk_err, 0);
1095 return -err;
1096}
1097
1098static inline unsigned long sock_wspace(struct sock *sk)
1099{
1100 int amt = 0;
1101
1102 if (!(sk->sk_shutdown & SEND_SHUTDOWN)) {
1103 amt = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
1104 if (amt < 0)
1105 amt = 0;
1106 }
1107 return amt;
1108}
1109
1110static inline void sk_wake_async(struct sock *sk, int how, int band)
1111{
1112 if (sk->sk_socket && sk->sk_socket->fasync_list)
1113 sock_wake_async(sk->sk_socket, how, band);
1114}
1115
1116#define SOCK_MIN_SNDBUF 2048
1117#define SOCK_MIN_RCVBUF 256
1118
1119static inline void sk_stream_moderate_sndbuf(struct sock *sk)
1120{
1121 if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK)) {
1122 sk->sk_sndbuf = min(sk->sk_sndbuf, sk->sk_wmem_queued / 2);
1123 sk->sk_sndbuf = max(sk->sk_sndbuf, SOCK_MIN_SNDBUF);
1124 }
1125}
1126
1127static inline struct sk_buff *sk_stream_alloc_pskb(struct sock *sk,
1128 int size, int mem, int gfp)
1129{
1130 struct sk_buff *skb = alloc_skb(size + sk->sk_prot->max_header, gfp);
1131
1132 if (skb) {
1133 skb->truesize += mem;
1134 if (sk->sk_forward_alloc >= (int)skb->truesize ||
1135 sk_stream_mem_schedule(sk, skb->truesize, 0)) {
1136 skb_reserve(skb, sk->sk_prot->max_header);
1137 return skb;
1138 }
1139 __kfree_skb(skb);
1140 } else {
1141 sk->sk_prot->enter_memory_pressure();
1142 sk_stream_moderate_sndbuf(sk);
1143 }
1144 return NULL;
1145}
1146
1147static inline struct sk_buff *sk_stream_alloc_skb(struct sock *sk,
1148 int size, int gfp)
1149{
1150 return sk_stream_alloc_pskb(sk, size, 0, gfp);
1151}
1152
1153static inline struct page *sk_stream_alloc_page(struct sock *sk)
1154{
1155 struct page *page = NULL;
1156
1157 if (sk->sk_forward_alloc >= (int)PAGE_SIZE ||
1158 sk_stream_mem_schedule(sk, PAGE_SIZE, 0))
1159 page = alloc_pages(sk->sk_allocation, 0);
1160 else {
1161 sk->sk_prot->enter_memory_pressure();
1162 sk_stream_moderate_sndbuf(sk);
1163 }
1164 return page;
1165}
1166
1167#define sk_stream_for_retrans_queue(skb, sk) \
1168 for (skb = (sk)->sk_write_queue.next; \
1169 (skb != (sk)->sk_send_head) && \
1170 (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
1171 skb = skb->next)
1172
1173/*
1174 * Default write policy as shown to user space via poll/select/SIGIO
1175 */
1176static inline int sock_writeable(const struct sock *sk)
1177{
1178 return atomic_read(&sk->sk_wmem_alloc) < (sk->sk_sndbuf / 2);
1179}
1180
1181static inline int gfp_any(void)
1182{
1183 return in_softirq() ? GFP_ATOMIC : GFP_KERNEL;
1184}
1185
1186static inline long sock_rcvtimeo(const struct sock *sk, int noblock)
1187{
1188 return noblock ? 0 : sk->sk_rcvtimeo;
1189}
1190
1191static inline long sock_sndtimeo(const struct sock *sk, int noblock)
1192{
1193 return noblock ? 0 : sk->sk_sndtimeo;
1194}
1195
1196static inline int sock_rcvlowat(const struct sock *sk, int waitall, int len)
1197{
1198 return (waitall ? len : min_t(int, sk->sk_rcvlowat, len)) ? : 1;
1199}
1200
1201/* Alas, with timeout socket operations are not restartable.
1202 * Compare this to poll().
1203 */
1204static inline int sock_intr_errno(long timeo)
1205{
1206 return timeo == MAX_SCHEDULE_TIMEOUT ? -ERESTARTSYS : -EINTR;
1207}
1208
1209static __inline__ void
1210sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
1211{
1212 struct timeval *stamp = &skb->stamp;
1213 if (sock_flag(sk, SOCK_RCVTSTAMP)) {
1214 /* Race occurred between timestamp enabling and packet
1215 receiving. Fill in the current time for now. */
1216 if (stamp->tv_sec == 0)
1217 do_gettimeofday(stamp);
1218 put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP, sizeof(struct timeval),
1219 stamp);
1220 } else
1221 sk->sk_stamp = *stamp;
1222}
1223
1224/**
1225 * sk_eat_skb - Release a skb if it is no longer needed
1226 * @sk - socket to eat this skb from
1227 * @skb - socket buffer to eat
1228 *
1229 * This routine must be called with interrupts disabled or with the socket
1230 * locked so that the sk_buff queue operation is ok.
1231*/
1232static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb)
1233{
1234 __skb_unlink(skb, &sk->sk_receive_queue);
1235 __kfree_skb(skb);
1236}
1237
1238extern void sock_enable_timestamp(struct sock *sk);
1239extern int sock_get_timestamp(struct sock *, struct timeval __user *);
1240
1241/*
1242 * Enable debug/info messages
1243 */
1244
1245#if 0
1246#define NETDEBUG(x) do { } while (0)
1247#define LIMIT_NETDEBUG(x) do {} while(0)
1248#else
1249#define NETDEBUG(x) do { x; } while (0)
1250#define LIMIT_NETDEBUG(x) do { if (net_ratelimit()) { x; } } while(0)
1251#endif
1252
1253/*
1254 * Macros for sleeping on a socket. Use them like this:
1255 *
1256 * SOCK_SLEEP_PRE(sk)
1257 * if (condition)
1258 * schedule();
1259 * SOCK_SLEEP_POST(sk)
1260 *
1261 * N.B. These are now obsolete and were, afaik, only ever used in DECnet
1262 * and when the last use of them in DECnet has gone, I'm intending to
1263 * remove them.
1264 */
1265
1266#define SOCK_SLEEP_PRE(sk) { struct task_struct *tsk = current; \
1267 DECLARE_WAITQUEUE(wait, tsk); \
1268 tsk->state = TASK_INTERRUPTIBLE; \
1269 add_wait_queue((sk)->sk_sleep, &wait); \
1270 release_sock(sk);
1271
1272#define SOCK_SLEEP_POST(sk) tsk->state = TASK_RUNNING; \
1273 remove_wait_queue((sk)->sk_sleep, &wait); \
1274 lock_sock(sk); \
1275 }
1276
1277static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
1278{
1279 if (valbool)
1280 sock_set_flag(sk, bit);
1281 else
1282 sock_reset_flag(sk, bit);
1283}
1284
1285extern __u32 sysctl_wmem_max;
1286extern __u32 sysctl_rmem_max;
1287
1288#ifdef CONFIG_NET
1289int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1290#else
1291static inline int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
1292{
1293 return -ENODEV;
1294}
1295#endif
1296
1297#endif /* _SOCK_H */
diff --git a/include/net/syncppp.h b/include/net/syncppp.h
new file mode 100644
index 000000000000..614cb6ba564e
--- /dev/null
+++ b/include/net/syncppp.h
@@ -0,0 +1,105 @@
1/*
2 * Defines for synchronous PPP/Cisco link level subroutines.
3 *
4 * Copyright (C) 1994 Cronyx Ltd.
5 * Author: Serge Vakulenko, <vak@zebub.msk.su>
6 *
7 * This software is distributed with NO WARRANTIES, not even the implied
8 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
9 *
10 * Authors grant any other persons or organizations permission to use
11 * or modify this software as long as this message is kept with the software,
12 * all derivative works or modified versions.
13 *
14 * Version 1.7, Wed Jun 7 22:12:02 MSD 1995
15 *
16 *
17 *
18 */
19
20#ifndef _SYNCPPP_H_
21#define _SYNCPPP_H_ 1
22
23#ifdef __KERNEL__
24struct slcp {
25 u16 state; /* state machine */
26 u32 magic; /* local magic number */
27 u_char echoid; /* id of last keepalive echo request */
28 u_char confid; /* id of last configuration request */
29};
30
31struct sipcp {
32 u16 state; /* state machine */
33 u_char confid; /* id of last configuration request */
34};
35
36struct sppp
37{
38 struct sppp * pp_next; /* next interface in keepalive list */
39 u32 pp_flags; /* use Cisco protocol instead of PPP */
40 u16 pp_alivecnt; /* keepalive packets counter */
41 u16 pp_loopcnt; /* loopback detection counter */
42 u32 pp_seq; /* local sequence number */
43 u32 pp_rseq; /* remote sequence number */
44 struct slcp lcp; /* LCP params */
45 struct sipcp ipcp; /* IPCP params */
46 u32 ibytes,obytes; /* Bytes in/out */
47 u32 ipkts,opkts; /* Packets in/out */
48 struct timer_list pp_timer;
49 struct net_device *pp_if;
50 char pp_link_state; /* Link status */
51 spinlock_t lock;
52};
53
54struct ppp_device
55{
56 struct net_device *dev; /* Network device pointer */
57 struct sppp sppp; /* Synchronous PPP */
58};
59
60static inline struct sppp *sppp_of(struct net_device *dev)
61{
62 struct ppp_device **ppp = dev->priv;
63 BUG_ON((*ppp)->dev != dev);
64 return &(*ppp)->sppp;
65}
66
67#define PP_KEEPALIVE 0x01 /* use keepalive protocol */
68#define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */
69#define PP_TIMO 0x04 /* cp_timeout routine active */
70#define PP_DEBUG 0x08
71
72#define PPP_MTU 1500 /* max. transmit unit */
73
74#define LCP_STATE_CLOSED 0 /* LCP state: closed (conf-req sent) */
75#define LCP_STATE_ACK_RCVD 1 /* LCP state: conf-ack received */
76#define LCP_STATE_ACK_SENT 2 /* LCP state: conf-ack sent */
77#define LCP_STATE_OPENED 3 /* LCP state: opened */
78
79#define IPCP_STATE_CLOSED 0 /* IPCP state: closed (conf-req sent) */
80#define IPCP_STATE_ACK_RCVD 1 /* IPCP state: conf-ack received */
81#define IPCP_STATE_ACK_SENT 2 /* IPCP state: conf-ack sent */
82#define IPCP_STATE_OPENED 3 /* IPCP state: opened */
83
84#define SPPP_LINK_DOWN 0 /* link down - no keepalive */
85#define SPPP_LINK_UP 1 /* link is up - keepalive ok */
86
87void sppp_attach (struct ppp_device *pd);
88void sppp_detach (struct net_device *dev);
89void sppp_input (struct net_device *dev, struct sk_buff *m);
90int sppp_do_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd);
91struct sk_buff *sppp_dequeue (struct net_device *dev);
92int sppp_isempty (struct net_device *dev);
93void sppp_flush (struct net_device *dev);
94int sppp_open (struct net_device *dev);
95int sppp_reopen (struct net_device *dev);
96int sppp_close (struct net_device *dev);
97#endif
98
99#define SPPPIOCCISCO (SIOCDEVPRIVATE)
100#define SPPPIOCPPP (SIOCDEVPRIVATE+1)
101#define SPPPIOCDEBUG (SIOCDEVPRIVATE+2)
102#define SPPPIOCSFLAGS (SIOCDEVPRIVATE+3)
103#define SPPPIOCGFLAGS (SIOCDEVPRIVATE+4)
104
105#endif /* _SYNCPPP_H_ */
diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
new file mode 100644
index 000000000000..59f0d9628ad1
--- /dev/null
+++ b/include/net/tc_act/tc_gact.h
@@ -0,0 +1,17 @@
1#ifndef __NET_TC_GACT_H
2#define __NET_TC_GACT_H
3
4#include <net/act_api.h>
5
6struct tcf_gact
7{
8 tca_gen(gact);
9#ifdef CONFIG_GACT_PROB
10 u16 ptype;
11 u16 pval;
12 int paction;
13#endif
14
15};
16
17#endif
diff --git a/include/net/tc_act/tc_ipt.h b/include/net/tc_act/tc_ipt.h
new file mode 100644
index 000000000000..02eccebd55ae
--- /dev/null
+++ b/include/net/tc_act/tc_ipt.h
@@ -0,0 +1,16 @@
1#ifndef __NET_TC_IPT_H
2#define __NET_TC_IPT_H
3
4#include <net/act_api.h>
5
6struct ipt_entry_target;
7
8struct tcf_ipt
9{
10 tca_gen(ipt);
11 u32 hook;
12 char *tname;
13 struct ipt_entry_target *t;
14};
15
16#endif
diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h
new file mode 100644
index 000000000000..b5c32f65c12c
--- /dev/null
+++ b/include/net/tc_act/tc_mirred.h
@@ -0,0 +1,15 @@
1#ifndef __NET_TC_MIR_H
2#define __NET_TC_MIR_H
3
4#include <net/act_api.h>
5
6struct tcf_mirred
7{
8 tca_gen(mirred);
9 int eaction;
10 int ifindex;
11 int ok_push;
12 struct net_device *dev;
13};
14
15#endif
diff --git a/include/net/tc_act/tc_pedit.h b/include/net/tc_act/tc_pedit.h
new file mode 100644
index 000000000000..eb21689d759d
--- /dev/null
+++ b/include/net/tc_act/tc_pedit.h
@@ -0,0 +1,14 @@
1#ifndef __NET_TC_PED_H
2#define __NET_TC_PED_H
3
4#include <net/act_api.h>
5
6struct tcf_pedit
7{
8 tca_gen(pedit);
9 unsigned char nkeys;
10 unsigned char flags;
11 struct tc_pedit_key *keys;
12};
13
14#endif
diff --git a/include/net/tcp.h b/include/net/tcp.h
new file mode 100644
index 000000000000..503810a70e21
--- /dev/null
+++ b/include/net/tcp.h
@@ -0,0 +1,2022 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the TCP module.
7 *
8 * Version: @(#)tcp.h 1.0.5 05/23/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18#ifndef _TCP_H
19#define _TCP_H
20
21#define TCP_DEBUG 1
22#define FASTRETRANS_DEBUG 1
23
24/* Cancel timers, when they are not required. */
25#undef TCP_CLEAR_TIMERS
26
27#include <linux/config.h>
28#include <linux/list.h>
29#include <linux/tcp.h>
30#include <linux/slab.h>
31#include <linux/cache.h>
32#include <linux/percpu.h>
33#include <net/checksum.h>
34#include <net/sock.h>
35#include <net/snmp.h>
36#include <net/ip.h>
37#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
38#include <linux/ipv6.h>
39#endif
40#include <linux/seq_file.h>
41
42/* This is for all connections with a full identity, no wildcards.
43 * New scheme, half the table is for TIME_WAIT, the other half is
44 * for the rest. I'll experiment with dynamic table growth later.
45 */
46struct tcp_ehash_bucket {
47 rwlock_t lock;
48 struct hlist_head chain;
49} __attribute__((__aligned__(8)));
50
51/* This is for listening sockets, thus all sockets which possess wildcards. */
52#define TCP_LHTABLE_SIZE 32 /* Yes, really, this is all you need. */
53
54/* There are a few simple rules, which allow for local port reuse by
55 * an application. In essence:
56 *
57 * 1) Sockets bound to different interfaces may share a local port.
58 * Failing that, goto test 2.
59 * 2) If all sockets have sk->sk_reuse set, and none of them are in
60 * TCP_LISTEN state, the port may be shared.
61 * Failing that, goto test 3.
62 * 3) If all sockets are bound to a specific inet_sk(sk)->rcv_saddr local
63 * address, and none of them are the same, the port may be
64 * shared.
65 * Failing this, the port cannot be shared.
66 *
67 * The interesting point, is test #2. This is what an FTP server does
68 * all day. To optimize this case we use a specific flag bit defined
69 * below. As we add sockets to a bind bucket list, we perform a
70 * check of: (newsk->sk_reuse && (newsk->sk_state != TCP_LISTEN))
71 * As long as all sockets added to a bind bucket pass this test,
72 * the flag bit will be set.
73 * The resulting situation is that tcp_v[46]_verify_bind() can just check
74 * for this flag bit, if it is set and the socket trying to bind has
75 * sk->sk_reuse set, we don't even have to walk the owners list at all,
76 * we return that it is ok to bind this socket to the requested local port.
77 *
78 * Sounds like a lot of work, but it is worth it. In a more naive
79 * implementation (ie. current FreeBSD etc.) the entire list of ports
80 * must be walked for each data port opened by an ftp server. Needless
81 * to say, this does not scale at all. With a couple thousand FTP
82 * users logged onto your box, isn't it nice to know that new data
83 * ports are created in O(1) time? I thought so. ;-) -DaveM
84 */
85struct tcp_bind_bucket {
86 unsigned short port;
87 signed short fastreuse;
88 struct hlist_node node;
89 struct hlist_head owners;
90};
91
92#define tb_for_each(tb, node, head) hlist_for_each_entry(tb, node, head, node)
93
94struct tcp_bind_hashbucket {
95 spinlock_t lock;
96 struct hlist_head chain;
97};
98
99static inline struct tcp_bind_bucket *__tb_head(struct tcp_bind_hashbucket *head)
100{
101 return hlist_entry(head->chain.first, struct tcp_bind_bucket, node);
102}
103
104static inline struct tcp_bind_bucket *tb_head(struct tcp_bind_hashbucket *head)
105{
106 return hlist_empty(&head->chain) ? NULL : __tb_head(head);
107}
108
109extern struct tcp_hashinfo {
110 /* This is for sockets with full identity only. Sockets here will
111 * always be without wildcards and will have the following invariant:
112 *
113 * TCP_ESTABLISHED <= sk->sk_state < TCP_CLOSE
114 *
115 * First half of the table is for sockets not in TIME_WAIT, second half
116 * is for TIME_WAIT sockets only.
117 */
118 struct tcp_ehash_bucket *__tcp_ehash;
119
120 /* Ok, let's try this, I give up, we do need a local binding
121 * TCP hash as well as the others for fast bind/connect.
122 */
123 struct tcp_bind_hashbucket *__tcp_bhash;
124
125 int __tcp_bhash_size;
126 int __tcp_ehash_size;
127
128 /* All sockets in TCP_LISTEN state will be in here. This is the only
129 * table where wildcard'd TCP sockets can exist. Hash function here
130 * is just local port number.
131 */
132 struct hlist_head __tcp_listening_hash[TCP_LHTABLE_SIZE];
133
134 /* All the above members are written once at bootup and
135 * never written again _or_ are predominantly read-access.
136 *
137 * Now align to a new cache line as all the following members
138 * are often dirty.
139 */
140 rwlock_t __tcp_lhash_lock ____cacheline_aligned;
141 atomic_t __tcp_lhash_users;
142 wait_queue_head_t __tcp_lhash_wait;
143 spinlock_t __tcp_portalloc_lock;
144} tcp_hashinfo;
145
146#define tcp_ehash (tcp_hashinfo.__tcp_ehash)
147#define tcp_bhash (tcp_hashinfo.__tcp_bhash)
148#define tcp_ehash_size (tcp_hashinfo.__tcp_ehash_size)
149#define tcp_bhash_size (tcp_hashinfo.__tcp_bhash_size)
150#define tcp_listening_hash (tcp_hashinfo.__tcp_listening_hash)
151#define tcp_lhash_lock (tcp_hashinfo.__tcp_lhash_lock)
152#define tcp_lhash_users (tcp_hashinfo.__tcp_lhash_users)
153#define tcp_lhash_wait (tcp_hashinfo.__tcp_lhash_wait)
154#define tcp_portalloc_lock (tcp_hashinfo.__tcp_portalloc_lock)
155
156extern kmem_cache_t *tcp_bucket_cachep;
157extern struct tcp_bind_bucket *tcp_bucket_create(struct tcp_bind_hashbucket *head,
158 unsigned short snum);
159extern void tcp_bucket_destroy(struct tcp_bind_bucket *tb);
160extern void tcp_bucket_unlock(struct sock *sk);
161extern int tcp_port_rover;
162
163/* These are AF independent. */
164static __inline__ int tcp_bhashfn(__u16 lport)
165{
166 return (lport & (tcp_bhash_size - 1));
167}
168
169extern void tcp_bind_hash(struct sock *sk, struct tcp_bind_bucket *tb,
170 unsigned short snum);
171
172#if (BITS_PER_LONG == 64)
173#define TCP_ADDRCMP_ALIGN_BYTES 8
174#else
175#define TCP_ADDRCMP_ALIGN_BYTES 4
176#endif
177
178/* This is a TIME_WAIT bucket. It works around the memory consumption
179 * problems of sockets in such a state on heavily loaded servers, but
180 * without violating the protocol specification.
181 */
182struct tcp_tw_bucket {
183 /*
184 * Now struct sock also uses sock_common, so please just
185 * don't add nothing before this first member (__tw_common) --acme
186 */
187 struct sock_common __tw_common;
188#define tw_family __tw_common.skc_family
189#define tw_state __tw_common.skc_state
190#define tw_reuse __tw_common.skc_reuse
191#define tw_bound_dev_if __tw_common.skc_bound_dev_if
192#define tw_node __tw_common.skc_node
193#define tw_bind_node __tw_common.skc_bind_node
194#define tw_refcnt __tw_common.skc_refcnt
195 volatile unsigned char tw_substate;
196 unsigned char tw_rcv_wscale;
197 __u16 tw_sport;
198 /* Socket demultiplex comparisons on incoming packets. */
199 /* these five are in inet_sock */
200 __u32 tw_daddr
201 __attribute__((aligned(TCP_ADDRCMP_ALIGN_BYTES)));
202 __u32 tw_rcv_saddr;
203 __u16 tw_dport;
204 __u16 tw_num;
205 /* And these are ours. */
206 int tw_hashent;
207 int tw_timeout;
208 __u32 tw_rcv_nxt;
209 __u32 tw_snd_nxt;
210 __u32 tw_rcv_wnd;
211 __u32 tw_ts_recent;
212 long tw_ts_recent_stamp;
213 unsigned long tw_ttd;
214 struct tcp_bind_bucket *tw_tb;
215 struct hlist_node tw_death_node;
216#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
217 struct in6_addr tw_v6_daddr;
218 struct in6_addr tw_v6_rcv_saddr;
219 int tw_v6_ipv6only;
220#endif
221};
222
223static __inline__ void tw_add_node(struct tcp_tw_bucket *tw,
224 struct hlist_head *list)
225{
226 hlist_add_head(&tw->tw_node, list);
227}
228
229static __inline__ void tw_add_bind_node(struct tcp_tw_bucket *tw,
230 struct hlist_head *list)
231{
232 hlist_add_head(&tw->tw_bind_node, list);
233}
234
235static inline int tw_dead_hashed(struct tcp_tw_bucket *tw)
236{
237 return tw->tw_death_node.pprev != NULL;
238}
239
240static __inline__ void tw_dead_node_init(struct tcp_tw_bucket *tw)
241{
242 tw->tw_death_node.pprev = NULL;
243}
244
245static __inline__ void __tw_del_dead_node(struct tcp_tw_bucket *tw)
246{
247 __hlist_del(&tw->tw_death_node);
248 tw_dead_node_init(tw);
249}
250
251static __inline__ int tw_del_dead_node(struct tcp_tw_bucket *tw)
252{
253 if (tw_dead_hashed(tw)) {
254 __tw_del_dead_node(tw);
255 return 1;
256 }
257 return 0;
258}
259
260#define tw_for_each(tw, node, head) \
261 hlist_for_each_entry(tw, node, head, tw_node)
262
263#define tw_for_each_inmate(tw, node, jail) \
264 hlist_for_each_entry(tw, node, jail, tw_death_node)
265
266#define tw_for_each_inmate_safe(tw, node, safe, jail) \
267 hlist_for_each_entry_safe(tw, node, safe, jail, tw_death_node)
268
269#define tcptw_sk(__sk) ((struct tcp_tw_bucket *)(__sk))
270
271static inline u32 tcp_v4_rcv_saddr(const struct sock *sk)
272{
273 return likely(sk->sk_state != TCP_TIME_WAIT) ?
274 inet_sk(sk)->rcv_saddr : tcptw_sk(sk)->tw_rcv_saddr;
275}
276
277#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
278static inline struct in6_addr *__tcp_v6_rcv_saddr(const struct sock *sk)
279{
280 return likely(sk->sk_state != TCP_TIME_WAIT) ?
281 &inet6_sk(sk)->rcv_saddr : &tcptw_sk(sk)->tw_v6_rcv_saddr;
282}
283
284static inline struct in6_addr *tcp_v6_rcv_saddr(const struct sock *sk)
285{
286 return sk->sk_family == AF_INET6 ? __tcp_v6_rcv_saddr(sk) : NULL;
287}
288
289#define tcptw_sk_ipv6only(__sk) (tcptw_sk(__sk)->tw_v6_ipv6only)
290
291static inline int tcp_v6_ipv6only(const struct sock *sk)
292{
293 return likely(sk->sk_state != TCP_TIME_WAIT) ?
294 ipv6_only_sock(sk) : tcptw_sk_ipv6only(sk);
295}
296#else
297# define __tcp_v6_rcv_saddr(__sk) NULL
298# define tcp_v6_rcv_saddr(__sk) NULL
299# define tcptw_sk_ipv6only(__sk) 0
300# define tcp_v6_ipv6only(__sk) 0
301#endif
302
303extern kmem_cache_t *tcp_timewait_cachep;
304
305static inline void tcp_tw_put(struct tcp_tw_bucket *tw)
306{
307 if (atomic_dec_and_test(&tw->tw_refcnt)) {
308#ifdef INET_REFCNT_DEBUG
309 printk(KERN_DEBUG "tw_bucket %p released\n", tw);
310#endif
311 kmem_cache_free(tcp_timewait_cachep, tw);
312 }
313}
314
315extern atomic_t tcp_orphan_count;
316extern int tcp_tw_count;
317extern void tcp_time_wait(struct sock *sk, int state, int timeo);
318extern void tcp_tw_deschedule(struct tcp_tw_bucket *tw);
319
320
321/* Socket demux engine toys. */
322#ifdef __BIG_ENDIAN
323#define TCP_COMBINED_PORTS(__sport, __dport) \
324 (((__u32)(__sport)<<16) | (__u32)(__dport))
325#else /* __LITTLE_ENDIAN */
326#define TCP_COMBINED_PORTS(__sport, __dport) \
327 (((__u32)(__dport)<<16) | (__u32)(__sport))
328#endif
329
330#if (BITS_PER_LONG == 64)
331#ifdef __BIG_ENDIAN
332#define TCP_V4_ADDR_COOKIE(__name, __saddr, __daddr) \
333 __u64 __name = (((__u64)(__saddr))<<32)|((__u64)(__daddr));
334#else /* __LITTLE_ENDIAN */
335#define TCP_V4_ADDR_COOKIE(__name, __saddr, __daddr) \
336 __u64 __name = (((__u64)(__daddr))<<32)|((__u64)(__saddr));
337#endif /* __BIG_ENDIAN */
338#define TCP_IPV4_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif)\
339 (((*((__u64 *)&(inet_sk(__sk)->daddr)))== (__cookie)) && \
340 ((*((__u32 *)&(inet_sk(__sk)->dport)))== (__ports)) && \
341 (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
342#define TCP_IPV4_TW_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif)\
343 (((*((__u64 *)&(tcptw_sk(__sk)->tw_daddr))) == (__cookie)) && \
344 ((*((__u32 *)&(tcptw_sk(__sk)->tw_dport))) == (__ports)) && \
345 (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
346#else /* 32-bit arch */
347#define TCP_V4_ADDR_COOKIE(__name, __saddr, __daddr)
348#define TCP_IPV4_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif)\
349 ((inet_sk(__sk)->daddr == (__saddr)) && \
350 (inet_sk(__sk)->rcv_saddr == (__daddr)) && \
351 ((*((__u32 *)&(inet_sk(__sk)->dport)))== (__ports)) && \
352 (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
353#define TCP_IPV4_TW_MATCH(__sk, __cookie, __saddr, __daddr, __ports, __dif)\
354 ((tcptw_sk(__sk)->tw_daddr == (__saddr)) && \
355 (tcptw_sk(__sk)->tw_rcv_saddr == (__daddr)) && \
356 ((*((__u32 *)&(tcptw_sk(__sk)->tw_dport))) == (__ports)) && \
357 (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
358#endif /* 64-bit arch */
359
360#define TCP_IPV6_MATCH(__sk, __saddr, __daddr, __ports, __dif) \
361 (((*((__u32 *)&(inet_sk(__sk)->dport)))== (__ports)) && \
362 ((__sk)->sk_family == AF_INET6) && \
363 ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr)) && \
364 ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \
365 (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
366
367/* These can have wildcards, don't try too hard. */
368static __inline__ int tcp_lhashfn(unsigned short num)
369{
370 return num & (TCP_LHTABLE_SIZE - 1);
371}
372
373static __inline__ int tcp_sk_listen_hashfn(struct sock *sk)
374{
375 return tcp_lhashfn(inet_sk(sk)->num);
376}
377
378#define MAX_TCP_HEADER (128 + MAX_HEADER)
379
380/*
381 * Never offer a window over 32767 without using window scaling. Some
382 * poor stacks do signed 16bit maths!
383 */
384#define MAX_TCP_WINDOW 32767U
385
386/* Minimal accepted MSS. It is (60+60+8) - (20+20). */
387#define TCP_MIN_MSS 88U
388
389/* Minimal RCV_MSS. */
390#define TCP_MIN_RCVMSS 536U
391
392/* After receiving this amount of duplicate ACKs fast retransmit starts. */
393#define TCP_FASTRETRANS_THRESH 3
394
395/* Maximal reordering. */
396#define TCP_MAX_REORDERING 127
397
398/* Maximal number of ACKs sent quickly to accelerate slow-start. */
399#define TCP_MAX_QUICKACKS 16U
400
401/* urg_data states */
402#define TCP_URG_VALID 0x0100
403#define TCP_URG_NOTYET 0x0200
404#define TCP_URG_READ 0x0400
405
406#define TCP_RETR1 3 /*
407 * This is how many retries it does before it
408 * tries to figure out if the gateway is
409 * down. Minimal RFC value is 3; it corresponds
410 * to ~3sec-8min depending on RTO.
411 */
412
413#define TCP_RETR2 15 /*
414 * This should take at least
415 * 90 minutes to time out.
416 * RFC1122 says that the limit is 100 sec.
417 * 15 is ~13-30min depending on RTO.
418 */
419
420#define TCP_SYN_RETRIES 5 /* number of times to retry active opening a
421 * connection: ~180sec is RFC minumum */
422
423#define TCP_SYNACK_RETRIES 5 /* number of times to retry passive opening a
424 * connection: ~180sec is RFC minumum */
425
426
427#define TCP_ORPHAN_RETRIES 7 /* number of times to retry on an orphaned
428 * socket. 7 is ~50sec-16min.
429 */
430
431
432#define TCP_TIMEWAIT_LEN (60*HZ) /* how long to wait to destroy TIME-WAIT
433 * state, about 60 seconds */
434#define TCP_FIN_TIMEOUT TCP_TIMEWAIT_LEN
435 /* BSD style FIN_WAIT2 deadlock breaker.
436 * It used to be 3min, new value is 60sec,
437 * to combine FIN-WAIT-2 timeout with
438 * TIME-WAIT timer.
439 */
440
441#define TCP_DELACK_MAX ((unsigned)(HZ/5)) /* maximal time to delay before sending an ACK */
442#if HZ >= 100
443#define TCP_DELACK_MIN ((unsigned)(HZ/25)) /* minimal time to delay before sending an ACK */
444#define TCP_ATO_MIN ((unsigned)(HZ/25))
445#else
446#define TCP_DELACK_MIN 4U
447#define TCP_ATO_MIN 4U
448#endif
449#define TCP_RTO_MAX ((unsigned)(120*HZ))
450#define TCP_RTO_MIN ((unsigned)(HZ/5))
451#define TCP_TIMEOUT_INIT ((unsigned)(3*HZ)) /* RFC 1122 initial RTO value */
452
453#define TCP_RESOURCE_PROBE_INTERVAL ((unsigned)(HZ/2U)) /* Maximal interval between probes
454 * for local resources.
455 */
456
457#define TCP_KEEPALIVE_TIME (120*60*HZ) /* two hours */
458#define TCP_KEEPALIVE_PROBES 9 /* Max of 9 keepalive probes */
459#define TCP_KEEPALIVE_INTVL (75*HZ)
460
461#define MAX_TCP_KEEPIDLE 32767
462#define MAX_TCP_KEEPINTVL 32767
463#define MAX_TCP_KEEPCNT 127
464#define MAX_TCP_SYNCNT 127
465
466#define TCP_SYNQ_INTERVAL (HZ/5) /* Period of SYNACK timer */
467#define TCP_SYNQ_HSIZE 512 /* Size of SYNACK hash table */
468
469#define TCP_PAWS_24DAYS (60 * 60 * 24 * 24)
470#define TCP_PAWS_MSL 60 /* Per-host timestamps are invalidated
471 * after this time. It should be equal
472 * (or greater than) TCP_TIMEWAIT_LEN
473 * to provide reliability equal to one
474 * provided by timewait state.
475 */
476#define TCP_PAWS_WINDOW 1 /* Replay window for per-host
477 * timestamps. It must be less than
478 * minimal timewait lifetime.
479 */
480
481#define TCP_TW_RECYCLE_SLOTS_LOG 5
482#define TCP_TW_RECYCLE_SLOTS (1<<TCP_TW_RECYCLE_SLOTS_LOG)
483
484/* If time > 4sec, it is "slow" path, no recycling is required,
485 so that we select tick to get range about 4 seconds.
486 */
487
488#if HZ <= 16 || HZ > 4096
489# error Unsupported: HZ <= 16 or HZ > 4096
490#elif HZ <= 32
491# define TCP_TW_RECYCLE_TICK (5+2-TCP_TW_RECYCLE_SLOTS_LOG)
492#elif HZ <= 64
493# define TCP_TW_RECYCLE_TICK (6+2-TCP_TW_RECYCLE_SLOTS_LOG)
494#elif HZ <= 128
495# define TCP_TW_RECYCLE_TICK (7+2-TCP_TW_RECYCLE_SLOTS_LOG)
496#elif HZ <= 256
497# define TCP_TW_RECYCLE_TICK (8+2-TCP_TW_RECYCLE_SLOTS_LOG)
498#elif HZ <= 512
499# define TCP_TW_RECYCLE_TICK (9+2-TCP_TW_RECYCLE_SLOTS_LOG)
500#elif HZ <= 1024
501# define TCP_TW_RECYCLE_TICK (10+2-TCP_TW_RECYCLE_SLOTS_LOG)
502#elif HZ <= 2048
503# define TCP_TW_RECYCLE_TICK (11+2-TCP_TW_RECYCLE_SLOTS_LOG)
504#else
505# define TCP_TW_RECYCLE_TICK (12+2-TCP_TW_RECYCLE_SLOTS_LOG)
506#endif
507
508#define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation
509 * max_cwnd = snd_cwnd * beta
510 */
511#define BICTCP_MAX_INCREMENT 32 /*
512 * Limit on the amount of
513 * increment allowed during
514 * binary search.
515 */
516#define BICTCP_FUNC_OF_MIN_INCR 11 /*
517 * log(B/Smin)/log(B/(B-1))+1,
518 * Smin:min increment
519 * B:log factor
520 */
521#define BICTCP_B 4 /*
522 * In binary search,
523 * go to point (max+min)/N
524 */
525
526/*
527 * TCP option
528 */
529
530#define TCPOPT_NOP 1 /* Padding */
531#define TCPOPT_EOL 0 /* End of options */
532#define TCPOPT_MSS 2 /* Segment size negotiating */
533#define TCPOPT_WINDOW 3 /* Window scaling */
534#define TCPOPT_SACK_PERM 4 /* SACK Permitted */
535#define TCPOPT_SACK 5 /* SACK Block */
536#define TCPOPT_TIMESTAMP 8 /* Better RTT estimations/PAWS */
537
538/*
539 * TCP option lengths
540 */
541
542#define TCPOLEN_MSS 4
543#define TCPOLEN_WINDOW 3
544#define TCPOLEN_SACK_PERM 2
545#define TCPOLEN_TIMESTAMP 10
546
547/* But this is what stacks really send out. */
548#define TCPOLEN_TSTAMP_ALIGNED 12
549#define TCPOLEN_WSCALE_ALIGNED 4
550#define TCPOLEN_SACKPERM_ALIGNED 4
551#define TCPOLEN_SACK_BASE 2
552#define TCPOLEN_SACK_BASE_ALIGNED 4
553#define TCPOLEN_SACK_PERBLOCK 8
554
555#define TCP_TIME_RETRANS 1 /* Retransmit timer */
556#define TCP_TIME_DACK 2 /* Delayed ack timer */
557#define TCP_TIME_PROBE0 3 /* Zero window probe timer */
558#define TCP_TIME_KEEPOPEN 4 /* Keepalive timer */
559
560/* Flags in tp->nonagle */
561#define TCP_NAGLE_OFF 1 /* Nagle's algo is disabled */
562#define TCP_NAGLE_CORK 2 /* Socket is corked */
563#define TCP_NAGLE_PUSH 4 /* Cork is overriden for already queued data */
564
565/* sysctl variables for tcp */
566extern int sysctl_max_syn_backlog;
567extern int sysctl_tcp_timestamps;
568extern int sysctl_tcp_window_scaling;
569extern int sysctl_tcp_sack;
570extern int sysctl_tcp_fin_timeout;
571extern int sysctl_tcp_tw_recycle;
572extern int sysctl_tcp_keepalive_time;
573extern int sysctl_tcp_keepalive_probes;
574extern int sysctl_tcp_keepalive_intvl;
575extern int sysctl_tcp_syn_retries;
576extern int sysctl_tcp_synack_retries;
577extern int sysctl_tcp_retries1;
578extern int sysctl_tcp_retries2;
579extern int sysctl_tcp_orphan_retries;
580extern int sysctl_tcp_syncookies;
581extern int sysctl_tcp_retrans_collapse;
582extern int sysctl_tcp_stdurg;
583extern int sysctl_tcp_rfc1337;
584extern int sysctl_tcp_abort_on_overflow;
585extern int sysctl_tcp_max_orphans;
586extern int sysctl_tcp_max_tw_buckets;
587extern int sysctl_tcp_fack;
588extern int sysctl_tcp_reordering;
589extern int sysctl_tcp_ecn;
590extern int sysctl_tcp_dsack;
591extern int sysctl_tcp_mem[3];
592extern int sysctl_tcp_wmem[3];
593extern int sysctl_tcp_rmem[3];
594extern int sysctl_tcp_app_win;
595extern int sysctl_tcp_adv_win_scale;
596extern int sysctl_tcp_tw_reuse;
597extern int sysctl_tcp_frto;
598extern int sysctl_tcp_low_latency;
599extern int sysctl_tcp_westwood;
600extern int sysctl_tcp_vegas_cong_avoid;
601extern int sysctl_tcp_vegas_alpha;
602extern int sysctl_tcp_vegas_beta;
603extern int sysctl_tcp_vegas_gamma;
604extern int sysctl_tcp_nometrics_save;
605extern int sysctl_tcp_bic;
606extern int sysctl_tcp_bic_fast_convergence;
607extern int sysctl_tcp_bic_low_window;
608extern int sysctl_tcp_bic_beta;
609extern int sysctl_tcp_moderate_rcvbuf;
610extern int sysctl_tcp_tso_win_divisor;
611
612extern atomic_t tcp_memory_allocated;
613extern atomic_t tcp_sockets_allocated;
614extern int tcp_memory_pressure;
615
616struct open_request;
617
618struct or_calltable {
619 int family;
620 int (*rtx_syn_ack) (struct sock *sk, struct open_request *req, struct dst_entry*);
621 void (*send_ack) (struct sk_buff *skb, struct open_request *req);
622 void (*destructor) (struct open_request *req);
623 void (*send_reset) (struct sk_buff *skb);
624};
625
626struct tcp_v4_open_req {
627 __u32 loc_addr;
628 __u32 rmt_addr;
629 struct ip_options *opt;
630};
631
632#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
633struct tcp_v6_open_req {
634 struct in6_addr loc_addr;
635 struct in6_addr rmt_addr;
636 struct sk_buff *pktopts;
637 int iif;
638};
639#endif
640
641/* this structure is too big */
642struct open_request {
643 struct open_request *dl_next; /* Must be first member! */
644 __u32 rcv_isn;
645 __u32 snt_isn;
646 __u16 rmt_port;
647 __u16 mss;
648 __u8 retrans;
649 __u8 __pad;
650 __u16 snd_wscale : 4,
651 rcv_wscale : 4,
652 tstamp_ok : 1,
653 sack_ok : 1,
654 wscale_ok : 1,
655 ecn_ok : 1,
656 acked : 1;
657 /* The following two fields can be easily recomputed I think -AK */
658 __u32 window_clamp; /* window clamp at creation time */
659 __u32 rcv_wnd; /* rcv_wnd offered first time */
660 __u32 ts_recent;
661 unsigned long expires;
662 struct or_calltable *class;
663 struct sock *sk;
664 union {
665 struct tcp_v4_open_req v4_req;
666#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
667 struct tcp_v6_open_req v6_req;
668#endif
669 } af;
670};
671
672/* SLAB cache for open requests. */
673extern kmem_cache_t *tcp_openreq_cachep;
674
675#define tcp_openreq_alloc() kmem_cache_alloc(tcp_openreq_cachep, SLAB_ATOMIC)
676#define tcp_openreq_fastfree(req) kmem_cache_free(tcp_openreq_cachep, req)
677
678static inline void tcp_openreq_free(struct open_request *req)
679{
680 req->class->destructor(req);
681 tcp_openreq_fastfree(req);
682}
683
684#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
685#define TCP_INET_FAMILY(fam) ((fam) == AF_INET)
686#else
687#define TCP_INET_FAMILY(fam) 1
688#endif
689
690/*
691 * Pointers to address related TCP functions
692 * (i.e. things that depend on the address family)
693 */
694
695struct tcp_func {
696 int (*queue_xmit) (struct sk_buff *skb,
697 int ipfragok);
698
699 void (*send_check) (struct sock *sk,
700 struct tcphdr *th,
701 int len,
702 struct sk_buff *skb);
703
704 int (*rebuild_header) (struct sock *sk);
705
706 int (*conn_request) (struct sock *sk,
707 struct sk_buff *skb);
708
709 struct sock * (*syn_recv_sock) (struct sock *sk,
710 struct sk_buff *skb,
711 struct open_request *req,
712 struct dst_entry *dst);
713
714 int (*remember_stamp) (struct sock *sk);
715
716 __u16 net_header_len;
717
718 int (*setsockopt) (struct sock *sk,
719 int level,
720 int optname,
721 char __user *optval,
722 int optlen);
723
724 int (*getsockopt) (struct sock *sk,
725 int level,
726 int optname,
727 char __user *optval,
728 int __user *optlen);
729
730
731 void (*addr2sockaddr) (struct sock *sk,
732 struct sockaddr *);
733
734 int sockaddr_len;
735};
736
737/*
738 * The next routines deal with comparing 32 bit unsigned ints
739 * and worry about wraparound (automatic with unsigned arithmetic).
740 */
741
742static inline int before(__u32 seq1, __u32 seq2)
743{
744 return (__s32)(seq1-seq2) < 0;
745}
746
747static inline int after(__u32 seq1, __u32 seq2)
748{
749 return (__s32)(seq2-seq1) < 0;
750}
751
752
753/* is s2<=s1<=s3 ? */
754static inline int between(__u32 seq1, __u32 seq2, __u32 seq3)
755{
756 return seq3 - seq2 >= seq1 - seq2;
757}
758
759
760extern struct proto tcp_prot;
761
762DECLARE_SNMP_STAT(struct tcp_mib, tcp_statistics);
763#define TCP_INC_STATS(field) SNMP_INC_STATS(tcp_statistics, field)
764#define TCP_INC_STATS_BH(field) SNMP_INC_STATS_BH(tcp_statistics, field)
765#define TCP_INC_STATS_USER(field) SNMP_INC_STATS_USER(tcp_statistics, field)
766#define TCP_DEC_STATS(field) SNMP_DEC_STATS(tcp_statistics, field)
767#define TCP_ADD_STATS_BH(field, val) SNMP_ADD_STATS_BH(tcp_statistics, field, val)
768#define TCP_ADD_STATS_USER(field, val) SNMP_ADD_STATS_USER(tcp_statistics, field, val)
769
770extern void tcp_put_port(struct sock *sk);
771extern void tcp_inherit_port(struct sock *sk, struct sock *child);
772
773extern void tcp_v4_err(struct sk_buff *skb, u32);
774
775extern void tcp_shutdown (struct sock *sk, int how);
776
777extern int tcp_v4_rcv(struct sk_buff *skb);
778
779extern int tcp_v4_remember_stamp(struct sock *sk);
780
781extern int tcp_v4_tw_remember_stamp(struct tcp_tw_bucket *tw);
782
783extern int tcp_sendmsg(struct kiocb *iocb, struct sock *sk,
784 struct msghdr *msg, size_t size);
785extern ssize_t tcp_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags);
786
787extern int tcp_ioctl(struct sock *sk,
788 int cmd,
789 unsigned long arg);
790
791extern int tcp_rcv_state_process(struct sock *sk,
792 struct sk_buff *skb,
793 struct tcphdr *th,
794 unsigned len);
795
796extern int tcp_rcv_established(struct sock *sk,
797 struct sk_buff *skb,
798 struct tcphdr *th,
799 unsigned len);
800
801extern void tcp_rcv_space_adjust(struct sock *sk);
802
803enum tcp_ack_state_t
804{
805 TCP_ACK_SCHED = 1,
806 TCP_ACK_TIMER = 2,
807 TCP_ACK_PUSHED= 4
808};
809
810static inline void tcp_schedule_ack(struct tcp_sock *tp)
811{
812 tp->ack.pending |= TCP_ACK_SCHED;
813}
814
815static inline int tcp_ack_scheduled(struct tcp_sock *tp)
816{
817 return tp->ack.pending&TCP_ACK_SCHED;
818}
819
820static __inline__ void tcp_dec_quickack_mode(struct tcp_sock *tp)
821{
822 if (tp->ack.quick && --tp->ack.quick == 0) {
823 /* Leaving quickack mode we deflate ATO. */
824 tp->ack.ato = TCP_ATO_MIN;
825 }
826}
827
828extern void tcp_enter_quickack_mode(struct tcp_sock *tp);
829
830static __inline__ void tcp_delack_init(struct tcp_sock *tp)
831{
832 memset(&tp->ack, 0, sizeof(tp->ack));
833}
834
835static inline void tcp_clear_options(struct tcp_options_received *rx_opt)
836{
837 rx_opt->tstamp_ok = rx_opt->sack_ok = rx_opt->wscale_ok = rx_opt->snd_wscale = 0;
838}
839
840enum tcp_tw_status
841{
842 TCP_TW_SUCCESS = 0,
843 TCP_TW_RST = 1,
844 TCP_TW_ACK = 2,
845 TCP_TW_SYN = 3
846};
847
848
849extern enum tcp_tw_status tcp_timewait_state_process(struct tcp_tw_bucket *tw,
850 struct sk_buff *skb,
851 struct tcphdr *th,
852 unsigned len);
853
854extern struct sock * tcp_check_req(struct sock *sk,struct sk_buff *skb,
855 struct open_request *req,
856 struct open_request **prev);
857extern int tcp_child_process(struct sock *parent,
858 struct sock *child,
859 struct sk_buff *skb);
860extern void tcp_enter_frto(struct sock *sk);
861extern void tcp_enter_loss(struct sock *sk, int how);
862extern void tcp_clear_retrans(struct tcp_sock *tp);
863extern void tcp_update_metrics(struct sock *sk);
864
865extern void tcp_close(struct sock *sk,
866 long timeout);
867extern struct sock * tcp_accept(struct sock *sk, int flags, int *err);
868extern unsigned int tcp_poll(struct file * file, struct socket *sock, struct poll_table_struct *wait);
869
870extern int tcp_getsockopt(struct sock *sk, int level,
871 int optname,
872 char __user *optval,
873 int __user *optlen);
874extern int tcp_setsockopt(struct sock *sk, int level,
875 int optname, char __user *optval,
876 int optlen);
877extern void tcp_set_keepalive(struct sock *sk, int val);
878extern int tcp_recvmsg(struct kiocb *iocb, struct sock *sk,
879 struct msghdr *msg,
880 size_t len, int nonblock,
881 int flags, int *addr_len);
882
883extern int tcp_listen_start(struct sock *sk);
884
885extern void tcp_parse_options(struct sk_buff *skb,
886 struct tcp_options_received *opt_rx,
887 int estab);
888
889/*
890 * TCP v4 functions exported for the inet6 API
891 */
892
893extern int tcp_v4_rebuild_header(struct sock *sk);
894
895extern int tcp_v4_build_header(struct sock *sk,
896 struct sk_buff *skb);
897
898extern void tcp_v4_send_check(struct sock *sk,
899 struct tcphdr *th, int len,
900 struct sk_buff *skb);
901
902extern int tcp_v4_conn_request(struct sock *sk,
903 struct sk_buff *skb);
904
905extern struct sock * tcp_create_openreq_child(struct sock *sk,
906 struct open_request *req,
907 struct sk_buff *skb);
908
909extern struct sock * tcp_v4_syn_recv_sock(struct sock *sk,
910 struct sk_buff *skb,
911 struct open_request *req,
912 struct dst_entry *dst);
913
914extern int tcp_v4_do_rcv(struct sock *sk,
915 struct sk_buff *skb);
916
917extern int tcp_v4_connect(struct sock *sk,
918 struct sockaddr *uaddr,
919 int addr_len);
920
921extern int tcp_connect(struct sock *sk);
922
923extern struct sk_buff * tcp_make_synack(struct sock *sk,
924 struct dst_entry *dst,
925 struct open_request *req);
926
927extern int tcp_disconnect(struct sock *sk, int flags);
928
929extern void tcp_unhash(struct sock *sk);
930
931extern int tcp_v4_hash_connecting(struct sock *sk);
932
933
934/* From syncookies.c */
935extern struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
936 struct ip_options *opt);
937extern __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb,
938 __u16 *mss);
939
940/* tcp_output.c */
941
942extern int tcp_write_xmit(struct sock *, int nonagle);
943extern int tcp_retransmit_skb(struct sock *, struct sk_buff *);
944extern void tcp_xmit_retransmit_queue(struct sock *);
945extern void tcp_simple_retransmit(struct sock *);
946extern int tcp_trim_head(struct sock *, struct sk_buff *, u32);
947
948extern void tcp_send_probe0(struct sock *);
949extern void tcp_send_partial(struct sock *);
950extern int tcp_write_wakeup(struct sock *);
951extern void tcp_send_fin(struct sock *sk);
952extern void tcp_send_active_reset(struct sock *sk, int priority);
953extern int tcp_send_synack(struct sock *);
954extern void tcp_push_one(struct sock *, unsigned mss_now);
955extern void tcp_send_ack(struct sock *sk);
956extern void tcp_send_delayed_ack(struct sock *sk);
957
958/* tcp_timer.c */
959extern void tcp_init_xmit_timers(struct sock *);
960extern void tcp_clear_xmit_timers(struct sock *);
961
962extern void tcp_delete_keepalive_timer(struct sock *);
963extern void tcp_reset_keepalive_timer(struct sock *, unsigned long);
964extern unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu);
965extern unsigned int tcp_current_mss(struct sock *sk, int large);
966
967#ifdef TCP_DEBUG
968extern const char tcp_timer_bug_msg[];
969#endif
970
971/* tcp_diag.c */
972extern void tcp_get_info(struct sock *, struct tcp_info *);
973
974/* Read 'sendfile()'-style from a TCP socket */
975typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *,
976 unsigned int, size_t);
977extern int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
978 sk_read_actor_t recv_actor);
979
980static inline void tcp_clear_xmit_timer(struct sock *sk, int what)
981{
982 struct tcp_sock *tp = tcp_sk(sk);
983
984 switch (what) {
985 case TCP_TIME_RETRANS:
986 case TCP_TIME_PROBE0:
987 tp->pending = 0;
988
989#ifdef TCP_CLEAR_TIMERS
990 sk_stop_timer(sk, &tp->retransmit_timer);
991#endif
992 break;
993 case TCP_TIME_DACK:
994 tp->ack.blocked = 0;
995 tp->ack.pending = 0;
996
997#ifdef TCP_CLEAR_TIMERS
998 sk_stop_timer(sk, &tp->delack_timer);
999#endif
1000 break;
1001 default:
1002#ifdef TCP_DEBUG
1003 printk(tcp_timer_bug_msg);
1004#endif
1005 return;
1006 };
1007
1008}
1009
1010/*
1011 * Reset the retransmission timer
1012 */
1013static inline void tcp_reset_xmit_timer(struct sock *sk, int what, unsigned long when)
1014{
1015 struct tcp_sock *tp = tcp_sk(sk);
1016
1017 if (when > TCP_RTO_MAX) {
1018#ifdef TCP_DEBUG
1019 printk(KERN_DEBUG "reset_xmit_timer sk=%p %d when=0x%lx, caller=%p\n", sk, what, when, current_text_addr());
1020#endif
1021 when = TCP_RTO_MAX;
1022 }
1023
1024 switch (what) {
1025 case TCP_TIME_RETRANS:
1026 case TCP_TIME_PROBE0:
1027 tp->pending = what;
1028 tp->timeout = jiffies+when;
1029 sk_reset_timer(sk, &tp->retransmit_timer, tp->timeout);
1030 break;
1031
1032 case TCP_TIME_DACK:
1033 tp->ack.pending |= TCP_ACK_TIMER;
1034 tp->ack.timeout = jiffies+when;
1035 sk_reset_timer(sk, &tp->delack_timer, tp->ack.timeout);
1036 break;
1037
1038 default:
1039#ifdef TCP_DEBUG
1040 printk(tcp_timer_bug_msg);
1041#endif
1042 return;
1043 };
1044}
1045
1046/* Initialize RCV_MSS value.
1047 * RCV_MSS is an our guess about MSS used by the peer.
1048 * We haven't any direct information about the MSS.
1049 * It's better to underestimate the RCV_MSS rather than overestimate.
1050 * Overestimations make us ACKing less frequently than needed.
1051 * Underestimations are more easy to detect and fix by tcp_measure_rcv_mss().
1052 */
1053
1054static inline void tcp_initialize_rcv_mss(struct sock *sk)
1055{
1056 struct tcp_sock *tp = tcp_sk(sk);
1057 unsigned int hint = min(tp->advmss, tp->mss_cache_std);
1058
1059 hint = min(hint, tp->rcv_wnd/2);
1060 hint = min(hint, TCP_MIN_RCVMSS);
1061 hint = max(hint, TCP_MIN_MSS);
1062
1063 tp->ack.rcv_mss = hint;
1064}
1065
1066static __inline__ void __tcp_fast_path_on(struct tcp_sock *tp, u32 snd_wnd)
1067{
1068 tp->pred_flags = htonl((tp->tcp_header_len << 26) |
1069 ntohl(TCP_FLAG_ACK) |
1070 snd_wnd);
1071}
1072
1073static __inline__ void tcp_fast_path_on(struct tcp_sock *tp)
1074{
1075 __tcp_fast_path_on(tp, tp->snd_wnd >> tp->rx_opt.snd_wscale);
1076}
1077
1078static inline void tcp_fast_path_check(struct sock *sk, struct tcp_sock *tp)
1079{
1080 if (skb_queue_len(&tp->out_of_order_queue) == 0 &&
1081 tp->rcv_wnd &&
1082 atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf &&
1083 !tp->urg_data)
1084 tcp_fast_path_on(tp);
1085}
1086
1087/* Compute the actual receive window we are currently advertising.
1088 * Rcv_nxt can be after the window if our peer push more data
1089 * than the offered window.
1090 */
1091static __inline__ u32 tcp_receive_window(const struct tcp_sock *tp)
1092{
1093 s32 win = tp->rcv_wup + tp->rcv_wnd - tp->rcv_nxt;
1094
1095 if (win < 0)
1096 win = 0;
1097 return (u32) win;
1098}
1099
1100/* Choose a new window, without checks for shrinking, and without
1101 * scaling applied to the result. The caller does these things
1102 * if necessary. This is a "raw" window selection.
1103 */
1104extern u32 __tcp_select_window(struct sock *sk);
1105
1106/* TCP timestamps are only 32-bits, this causes a slight
1107 * complication on 64-bit systems since we store a snapshot
1108 * of jiffies in the buffer control blocks below. We decidely
1109 * only use of the low 32-bits of jiffies and hide the ugly
1110 * casts with the following macro.
1111 */
1112#define tcp_time_stamp ((__u32)(jiffies))
1113
1114/* This is what the send packet queueing engine uses to pass
1115 * TCP per-packet control information to the transmission
1116 * code. We also store the host-order sequence numbers in
1117 * here too. This is 36 bytes on 32-bit architectures,
1118 * 40 bytes on 64-bit machines, if this grows please adjust
1119 * skbuff.h:skbuff->cb[xxx] size appropriately.
1120 */
1121struct tcp_skb_cb {
1122 union {
1123 struct inet_skb_parm h4;
1124#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
1125 struct inet6_skb_parm h6;
1126#endif
1127 } header; /* For incoming frames */
1128 __u32 seq; /* Starting sequence number */
1129 __u32 end_seq; /* SEQ + FIN + SYN + datalen */
1130 __u32 when; /* used to compute rtt's */
1131 __u8 flags; /* TCP header flags. */
1132
1133 /* NOTE: These must match up to the flags byte in a
1134 * real TCP header.
1135 */
1136#define TCPCB_FLAG_FIN 0x01
1137#define TCPCB_FLAG_SYN 0x02
1138#define TCPCB_FLAG_RST 0x04
1139#define TCPCB_FLAG_PSH 0x08
1140#define TCPCB_FLAG_ACK 0x10
1141#define TCPCB_FLAG_URG 0x20
1142#define TCPCB_FLAG_ECE 0x40
1143#define TCPCB_FLAG_CWR 0x80
1144
1145 __u8 sacked; /* State flags for SACK/FACK. */
1146#define TCPCB_SACKED_ACKED 0x01 /* SKB ACK'd by a SACK block */
1147#define TCPCB_SACKED_RETRANS 0x02 /* SKB retransmitted */
1148#define TCPCB_LOST 0x04 /* SKB is lost */
1149#define TCPCB_TAGBITS 0x07 /* All tag bits */
1150
1151#define TCPCB_EVER_RETRANS 0x80 /* Ever retransmitted frame */
1152#define TCPCB_RETRANS (TCPCB_SACKED_RETRANS|TCPCB_EVER_RETRANS)
1153
1154#define TCPCB_URG 0x20 /* Urgent pointer advenced here */
1155
1156#define TCPCB_AT_TAIL (TCPCB_URG)
1157
1158 __u16 urg_ptr; /* Valid w/URG flags is set. */
1159 __u32 ack_seq; /* Sequence number ACK'd */
1160};
1161
1162#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
1163
1164#include <net/tcp_ecn.h>
1165
1166/* Due to TSO, an SKB can be composed of multiple actual
1167 * packets. To keep these tracked properly, we use this.
1168 */
1169static inline int tcp_skb_pcount(const struct sk_buff *skb)
1170{
1171 return skb_shinfo(skb)->tso_segs;
1172}
1173
1174/* This is valid iff tcp_skb_pcount() > 1. */
1175static inline int tcp_skb_mss(const struct sk_buff *skb)
1176{
1177 return skb_shinfo(skb)->tso_size;
1178}
1179
1180static inline void tcp_dec_pcount_approx(__u32 *count,
1181 const struct sk_buff *skb)
1182{
1183 if (*count) {
1184 *count -= tcp_skb_pcount(skb);
1185 if ((int)*count < 0)
1186 *count = 0;
1187 }
1188}
1189
1190static inline void tcp_packets_out_inc(struct sock *sk,
1191 struct tcp_sock *tp,
1192 const struct sk_buff *skb)
1193{
1194 int orig = tp->packets_out;
1195
1196 tp->packets_out += tcp_skb_pcount(skb);
1197 if (!orig)
1198 tcp_reset_xmit_timer(sk, TCP_TIME_RETRANS, tp->rto);
1199}
1200
1201static inline void tcp_packets_out_dec(struct tcp_sock *tp,
1202 const struct sk_buff *skb)
1203{
1204 tp->packets_out -= tcp_skb_pcount(skb);
1205}
1206
1207/* This determines how many packets are "in the network" to the best
1208 * of our knowledge. In many cases it is conservative, but where
1209 * detailed information is available from the receiver (via SACK
1210 * blocks etc.) we can make more aggressive calculations.
1211 *
1212 * Use this for decisions involving congestion control, use just
1213 * tp->packets_out to determine if the send queue is empty or not.
1214 *
1215 * Read this equation as:
1216 *
1217 * "Packets sent once on transmission queue" MINUS
1218 * "Packets left network, but not honestly ACKed yet" PLUS
1219 * "Packets fast retransmitted"
1220 */
1221static __inline__ unsigned int tcp_packets_in_flight(const struct tcp_sock *tp)
1222{
1223 return (tp->packets_out - tp->left_out + tp->retrans_out);
1224}
1225
1226/*
1227 * Which congestion algorithim is in use on the connection.
1228 */
1229#define tcp_is_vegas(__tp) ((__tp)->adv_cong == TCP_VEGAS)
1230#define tcp_is_westwood(__tp) ((__tp)->adv_cong == TCP_WESTWOOD)
1231#define tcp_is_bic(__tp) ((__tp)->adv_cong == TCP_BIC)
1232
1233/* Recalculate snd_ssthresh, we want to set it to:
1234 *
1235 * Reno:
1236 * one half the current congestion window, but no
1237 * less than two segments
1238 *
1239 * BIC:
1240 * behave like Reno until low_window is reached,
1241 * then increase congestion window slowly
1242 */
1243static inline __u32 tcp_recalc_ssthresh(struct tcp_sock *tp)
1244{
1245 if (tcp_is_bic(tp)) {
1246 if (sysctl_tcp_bic_fast_convergence &&
1247 tp->snd_cwnd < tp->bictcp.last_max_cwnd)
1248 tp->bictcp.last_max_cwnd = (tp->snd_cwnd *
1249 (BICTCP_BETA_SCALE
1250 + sysctl_tcp_bic_beta))
1251 / (2 * BICTCP_BETA_SCALE);
1252 else
1253 tp->bictcp.last_max_cwnd = tp->snd_cwnd;
1254
1255 if (tp->snd_cwnd > sysctl_tcp_bic_low_window)
1256 return max((tp->snd_cwnd * sysctl_tcp_bic_beta)
1257 / BICTCP_BETA_SCALE, 2U);
1258 }
1259
1260 return max(tp->snd_cwnd >> 1U, 2U);
1261}
1262
1263/* Stop taking Vegas samples for now. */
1264#define tcp_vegas_disable(__tp) ((__tp)->vegas.doing_vegas_now = 0)
1265
1266static inline void tcp_vegas_enable(struct tcp_sock *tp)
1267{
1268 /* There are several situations when we must "re-start" Vegas:
1269 *
1270 * o when a connection is established
1271 * o after an RTO
1272 * o after fast recovery
1273 * o when we send a packet and there is no outstanding
1274 * unacknowledged data (restarting an idle connection)
1275 *
1276 * In these circumstances we cannot do a Vegas calculation at the
1277 * end of the first RTT, because any calculation we do is using
1278 * stale info -- both the saved cwnd and congestion feedback are
1279 * stale.
1280 *
1281 * Instead we must wait until the completion of an RTT during
1282 * which we actually receive ACKs.
1283 */
1284
1285 /* Begin taking Vegas samples next time we send something. */
1286 tp->vegas.doing_vegas_now = 1;
1287
1288 /* Set the beginning of the next send window. */
1289 tp->vegas.beg_snd_nxt = tp->snd_nxt;
1290
1291 tp->vegas.cntRTT = 0;
1292 tp->vegas.minRTT = 0x7fffffff;
1293}
1294
1295/* Should we be taking Vegas samples right now? */
1296#define tcp_vegas_enabled(__tp) ((__tp)->vegas.doing_vegas_now)
1297
1298extern void tcp_ca_init(struct tcp_sock *tp);
1299
1300static inline void tcp_set_ca_state(struct tcp_sock *tp, u8 ca_state)
1301{
1302 if (tcp_is_vegas(tp)) {
1303 if (ca_state == TCP_CA_Open)
1304 tcp_vegas_enable(tp);
1305 else
1306 tcp_vegas_disable(tp);
1307 }
1308 tp->ca_state = ca_state;
1309}
1310
1311/* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd.
1312 * The exception is rate halving phase, when cwnd is decreasing towards
1313 * ssthresh.
1314 */
1315static inline __u32 tcp_current_ssthresh(struct tcp_sock *tp)
1316{
1317 if ((1<<tp->ca_state)&(TCPF_CA_CWR|TCPF_CA_Recovery))
1318 return tp->snd_ssthresh;
1319 else
1320 return max(tp->snd_ssthresh,
1321 ((tp->snd_cwnd >> 1) +
1322 (tp->snd_cwnd >> 2)));
1323}
1324
1325static inline void tcp_sync_left_out(struct tcp_sock *tp)
1326{
1327 if (tp->rx_opt.sack_ok &&
1328 (tp->sacked_out >= tp->packets_out - tp->lost_out))
1329 tp->sacked_out = tp->packets_out - tp->lost_out;
1330 tp->left_out = tp->sacked_out + tp->lost_out;
1331}
1332
1333extern void tcp_cwnd_application_limited(struct sock *sk);
1334
1335/* Congestion window validation. (RFC2861) */
1336
1337static inline void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp)
1338{
1339 __u32 packets_out = tp->packets_out;
1340
1341 if (packets_out >= tp->snd_cwnd) {
1342 /* Network is feed fully. */
1343 tp->snd_cwnd_used = 0;
1344 tp->snd_cwnd_stamp = tcp_time_stamp;
1345 } else {
1346 /* Network starves. */
1347 if (tp->packets_out > tp->snd_cwnd_used)
1348 tp->snd_cwnd_used = tp->packets_out;
1349
1350 if ((s32)(tcp_time_stamp - tp->snd_cwnd_stamp) >= tp->rto)
1351 tcp_cwnd_application_limited(sk);
1352 }
1353}
1354
1355/* Set slow start threshould and cwnd not falling to slow start */
1356static inline void __tcp_enter_cwr(struct tcp_sock *tp)
1357{
1358 tp->undo_marker = 0;
1359 tp->snd_ssthresh = tcp_recalc_ssthresh(tp);
1360 tp->snd_cwnd = min(tp->snd_cwnd,
1361 tcp_packets_in_flight(tp) + 1U);
1362 tp->snd_cwnd_cnt = 0;
1363 tp->high_seq = tp->snd_nxt;
1364 tp->snd_cwnd_stamp = tcp_time_stamp;
1365 TCP_ECN_queue_cwr(tp);
1366}
1367
1368static inline void tcp_enter_cwr(struct tcp_sock *tp)
1369{
1370 tp->prior_ssthresh = 0;
1371 if (tp->ca_state < TCP_CA_CWR) {
1372 __tcp_enter_cwr(tp);
1373 tcp_set_ca_state(tp, TCP_CA_CWR);
1374 }
1375}
1376
1377extern __u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst);
1378
1379/* Slow start with delack produces 3 packets of burst, so that
1380 * it is safe "de facto".
1381 */
1382static __inline__ __u32 tcp_max_burst(const struct tcp_sock *tp)
1383{
1384 return 3;
1385}
1386
1387static __inline__ int tcp_minshall_check(const struct tcp_sock *tp)
1388{
1389 return after(tp->snd_sml,tp->snd_una) &&
1390 !after(tp->snd_sml, tp->snd_nxt);
1391}
1392
1393static __inline__ void tcp_minshall_update(struct tcp_sock *tp, int mss,
1394 const struct sk_buff *skb)
1395{
1396 if (skb->len < mss)
1397 tp->snd_sml = TCP_SKB_CB(skb)->end_seq;
1398}
1399
1400/* Return 0, if packet can be sent now without violation Nagle's rules:
1401 1. It is full sized.
1402 2. Or it contains FIN.
1403 3. Or TCP_NODELAY was set.
1404 4. Or TCP_CORK is not set, and all sent packets are ACKed.
1405 With Minshall's modification: all sent small packets are ACKed.
1406 */
1407
1408static __inline__ int
1409tcp_nagle_check(const struct tcp_sock *tp, const struct sk_buff *skb,
1410 unsigned mss_now, int nonagle)
1411{
1412 return (skb->len < mss_now &&
1413 !(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN) &&
1414 ((nonagle&TCP_NAGLE_CORK) ||
1415 (!nonagle &&
1416 tp->packets_out &&
1417 tcp_minshall_check(tp))));
1418}
1419
1420extern void tcp_set_skb_tso_segs(struct sk_buff *, unsigned int);
1421
1422/* This checks if the data bearing packet SKB (usually sk->sk_send_head)
1423 * should be put on the wire right now.
1424 */
1425static __inline__ int tcp_snd_test(const struct tcp_sock *tp,
1426 struct sk_buff *skb,
1427 unsigned cur_mss, int nonagle)
1428{
1429 int pkts = tcp_skb_pcount(skb);
1430
1431 if (!pkts) {
1432 tcp_set_skb_tso_segs(skb, tp->mss_cache_std);
1433 pkts = tcp_skb_pcount(skb);
1434 }
1435
1436 /* RFC 1122 - section 4.2.3.4
1437 *
1438 * We must queue if
1439 *
1440 * a) The right edge of this frame exceeds the window
1441 * b) There are packets in flight and we have a small segment
1442 * [SWS avoidance and Nagle algorithm]
1443 * (part of SWS is done on packetization)
1444 * Minshall version sounds: there are no _small_
1445 * segments in flight. (tcp_nagle_check)
1446 * c) We have too many packets 'in flight'
1447 *
1448 * Don't use the nagle rule for urgent data (or
1449 * for the final FIN -DaveM).
1450 *
1451 * Also, Nagle rule does not apply to frames, which
1452 * sit in the middle of queue (they have no chances
1453 * to get new data) and if room at tail of skb is
1454 * not enough to save something seriously (<32 for now).
1455 */
1456
1457 /* Don't be strict about the congestion window for the
1458 * final FIN frame. -DaveM
1459 */
1460 return (((nonagle&TCP_NAGLE_PUSH) || tp->urg_mode
1461 || !tcp_nagle_check(tp, skb, cur_mss, nonagle)) &&
1462 (((tcp_packets_in_flight(tp) + (pkts-1)) < tp->snd_cwnd) ||
1463 (TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN)) &&
1464 !after(TCP_SKB_CB(skb)->end_seq, tp->snd_una + tp->snd_wnd));
1465}
1466
1467static __inline__ void tcp_check_probe_timer(struct sock *sk, struct tcp_sock *tp)
1468{
1469 if (!tp->packets_out && !tp->pending)
1470 tcp_reset_xmit_timer(sk, TCP_TIME_PROBE0, tp->rto);
1471}
1472
1473static __inline__ int tcp_skb_is_last(const struct sock *sk,
1474 const struct sk_buff *skb)
1475{
1476 return skb->next == (struct sk_buff *)&sk->sk_write_queue;
1477}
1478
1479/* Push out any pending frames which were held back due to
1480 * TCP_CORK or attempt at coalescing tiny packets.
1481 * The socket must be locked by the caller.
1482 */
1483static __inline__ void __tcp_push_pending_frames(struct sock *sk,
1484 struct tcp_sock *tp,
1485 unsigned cur_mss,
1486 int nonagle)
1487{
1488 struct sk_buff *skb = sk->sk_send_head;
1489
1490 if (skb) {
1491 if (!tcp_skb_is_last(sk, skb))
1492 nonagle = TCP_NAGLE_PUSH;
1493 if (!tcp_snd_test(tp, skb, cur_mss, nonagle) ||
1494 tcp_write_xmit(sk, nonagle))
1495 tcp_check_probe_timer(sk, tp);
1496 }
1497 tcp_cwnd_validate(sk, tp);
1498}
1499
1500static __inline__ void tcp_push_pending_frames(struct sock *sk,
1501 struct tcp_sock *tp)
1502{
1503 __tcp_push_pending_frames(sk, tp, tcp_current_mss(sk, 1), tp->nonagle);
1504}
1505
1506static __inline__ int tcp_may_send_now(struct sock *sk, struct tcp_sock *tp)
1507{
1508 struct sk_buff *skb = sk->sk_send_head;
1509
1510 return (skb &&
1511 tcp_snd_test(tp, skb, tcp_current_mss(sk, 1),
1512 tcp_skb_is_last(sk, skb) ? TCP_NAGLE_PUSH : tp->nonagle));
1513}
1514
1515static __inline__ void tcp_init_wl(struct tcp_sock *tp, u32 ack, u32 seq)
1516{
1517 tp->snd_wl1 = seq;
1518}
1519
1520static __inline__ void tcp_update_wl(struct tcp_sock *tp, u32 ack, u32 seq)
1521{
1522 tp->snd_wl1 = seq;
1523}
1524
1525extern void tcp_destroy_sock(struct sock *sk);
1526
1527
1528/*
1529 * Calculate(/check) TCP checksum
1530 */
1531static __inline__ u16 tcp_v4_check(struct tcphdr *th, int len,
1532 unsigned long saddr, unsigned long daddr,
1533 unsigned long base)
1534{
1535 return csum_tcpudp_magic(saddr,daddr,len,IPPROTO_TCP,base);
1536}
1537
1538static __inline__ int __tcp_checksum_complete(struct sk_buff *skb)
1539{
1540 return (unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
1541}
1542
1543static __inline__ int tcp_checksum_complete(struct sk_buff *skb)
1544{
1545 return skb->ip_summed != CHECKSUM_UNNECESSARY &&
1546 __tcp_checksum_complete(skb);
1547}
1548
1549/* Prequeue for VJ style copy to user, combined with checksumming. */
1550
1551static __inline__ void tcp_prequeue_init(struct tcp_sock *tp)
1552{
1553 tp->ucopy.task = NULL;
1554 tp->ucopy.len = 0;
1555 tp->ucopy.memory = 0;
1556 skb_queue_head_init(&tp->ucopy.prequeue);
1557}
1558
1559/* Packet is added to VJ-style prequeue for processing in process
1560 * context, if a reader task is waiting. Apparently, this exciting
1561 * idea (VJ's mail "Re: query about TCP header on tcp-ip" of 07 Sep 93)
1562 * failed somewhere. Latency? Burstiness? Well, at least now we will
1563 * see, why it failed. 8)8) --ANK
1564 *
1565 * NOTE: is this not too big to inline?
1566 */
1567static __inline__ int tcp_prequeue(struct sock *sk, struct sk_buff *skb)
1568{
1569 struct tcp_sock *tp = tcp_sk(sk);
1570
1571 if (!sysctl_tcp_low_latency && tp->ucopy.task) {
1572 __skb_queue_tail(&tp->ucopy.prequeue, skb);
1573 tp->ucopy.memory += skb->truesize;
1574 if (tp->ucopy.memory > sk->sk_rcvbuf) {
1575 struct sk_buff *skb1;
1576
1577 BUG_ON(sock_owned_by_user(sk));
1578
1579 while ((skb1 = __skb_dequeue(&tp->ucopy.prequeue)) != NULL) {
1580 sk->sk_backlog_rcv(sk, skb1);
1581 NET_INC_STATS_BH(LINUX_MIB_TCPPREQUEUEDROPPED);
1582 }
1583
1584 tp->ucopy.memory = 0;
1585 } else if (skb_queue_len(&tp->ucopy.prequeue) == 1) {
1586 wake_up_interruptible(sk->sk_sleep);
1587 if (!tcp_ack_scheduled(tp))
1588 tcp_reset_xmit_timer(sk, TCP_TIME_DACK, (3*TCP_RTO_MIN)/4);
1589 }
1590 return 1;
1591 }
1592 return 0;
1593}
1594
1595
1596#undef STATE_TRACE
1597
1598#ifdef STATE_TRACE
1599static const char *statename[]={
1600 "Unused","Established","Syn Sent","Syn Recv",
1601 "Fin Wait 1","Fin Wait 2","Time Wait", "Close",
1602 "Close Wait","Last ACK","Listen","Closing"
1603};
1604#endif
1605
1606static __inline__ void tcp_set_state(struct sock *sk, int state)
1607{
1608 int oldstate = sk->sk_state;
1609
1610 switch (state) {
1611 case TCP_ESTABLISHED:
1612 if (oldstate != TCP_ESTABLISHED)
1613 TCP_INC_STATS(TCP_MIB_CURRESTAB);
1614 break;
1615
1616 case TCP_CLOSE:
1617 if (oldstate == TCP_CLOSE_WAIT || oldstate == TCP_ESTABLISHED)
1618 TCP_INC_STATS(TCP_MIB_ESTABRESETS);
1619
1620 sk->sk_prot->unhash(sk);
1621 if (tcp_sk(sk)->bind_hash &&
1622 !(sk->sk_userlocks & SOCK_BINDPORT_LOCK))
1623 tcp_put_port(sk);
1624 /* fall through */
1625 default:
1626 if (oldstate==TCP_ESTABLISHED)
1627 TCP_DEC_STATS(TCP_MIB_CURRESTAB);
1628 }
1629
1630 /* Change state AFTER socket is unhashed to avoid closed
1631 * socket sitting in hash tables.
1632 */
1633 sk->sk_state = state;
1634
1635#ifdef STATE_TRACE
1636 SOCK_DEBUG(sk, "TCP sk=%p, State %s -> %s\n",sk, statename[oldstate],statename[state]);
1637#endif
1638}
1639
1640static __inline__ void tcp_done(struct sock *sk)
1641{
1642 tcp_set_state(sk, TCP_CLOSE);
1643 tcp_clear_xmit_timers(sk);
1644
1645 sk->sk_shutdown = SHUTDOWN_MASK;
1646
1647 if (!sock_flag(sk, SOCK_DEAD))
1648 sk->sk_state_change(sk);
1649 else
1650 tcp_destroy_sock(sk);
1651}
1652
1653static __inline__ void tcp_sack_reset(struct tcp_options_received *rx_opt)
1654{
1655 rx_opt->dsack = 0;
1656 rx_opt->eff_sacks = 0;
1657 rx_opt->num_sacks = 0;
1658}
1659
1660static __inline__ void tcp_build_and_update_options(__u32 *ptr, struct tcp_sock *tp, __u32 tstamp)
1661{
1662 if (tp->rx_opt.tstamp_ok) {
1663 *ptr++ = __constant_htonl((TCPOPT_NOP << 24) |
1664 (TCPOPT_NOP << 16) |
1665 (TCPOPT_TIMESTAMP << 8) |
1666 TCPOLEN_TIMESTAMP);
1667 *ptr++ = htonl(tstamp);
1668 *ptr++ = htonl(tp->rx_opt.ts_recent);
1669 }
1670 if (tp->rx_opt.eff_sacks) {
1671 struct tcp_sack_block *sp = tp->rx_opt.dsack ? tp->duplicate_sack : tp->selective_acks;
1672 int this_sack;
1673
1674 *ptr++ = __constant_htonl((TCPOPT_NOP << 24) |
1675 (TCPOPT_NOP << 16) |
1676 (TCPOPT_SACK << 8) |
1677 (TCPOLEN_SACK_BASE +
1678 (tp->rx_opt.eff_sacks * TCPOLEN_SACK_PERBLOCK)));
1679 for(this_sack = 0; this_sack < tp->rx_opt.eff_sacks; this_sack++) {
1680 *ptr++ = htonl(sp[this_sack].start_seq);
1681 *ptr++ = htonl(sp[this_sack].end_seq);
1682 }
1683 if (tp->rx_opt.dsack) {
1684 tp->rx_opt.dsack = 0;
1685 tp->rx_opt.eff_sacks--;
1686 }
1687 }
1688}
1689
1690/* Construct a tcp options header for a SYN or SYN_ACK packet.
1691 * If this is every changed make sure to change the definition of
1692 * MAX_SYN_SIZE to match the new maximum number of options that you
1693 * can generate.
1694 */
1695static inline void tcp_syn_build_options(__u32 *ptr, int mss, int ts, int sack,
1696 int offer_wscale, int wscale, __u32 tstamp, __u32 ts_recent)
1697{
1698 /* We always get an MSS option.
1699 * The option bytes which will be seen in normal data
1700 * packets should timestamps be used, must be in the MSS
1701 * advertised. But we subtract them from tp->mss_cache so
1702 * that calculations in tcp_sendmsg are simpler etc.
1703 * So account for this fact here if necessary. If we
1704 * don't do this correctly, as a receiver we won't
1705 * recognize data packets as being full sized when we
1706 * should, and thus we won't abide by the delayed ACK
1707 * rules correctly.
1708 * SACKs don't matter, we never delay an ACK when we
1709 * have any of those going out.
1710 */
1711 *ptr++ = htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | mss);
1712 if (ts) {
1713 if(sack)
1714 *ptr++ = __constant_htonl((TCPOPT_SACK_PERM << 24) | (TCPOLEN_SACK_PERM << 16) |
1715 (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP);
1716 else
1717 *ptr++ = __constant_htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
1718 (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP);
1719 *ptr++ = htonl(tstamp); /* TSVAL */
1720 *ptr++ = htonl(ts_recent); /* TSECR */
1721 } else if(sack)
1722 *ptr++ = __constant_htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
1723 (TCPOPT_SACK_PERM << 8) | TCPOLEN_SACK_PERM);
1724 if (offer_wscale)
1725 *ptr++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_WINDOW << 16) | (TCPOLEN_WINDOW << 8) | (wscale));
1726}
1727
1728/* Determine a window scaling and initial window to offer. */
1729extern void tcp_select_initial_window(int __space, __u32 mss,
1730 __u32 *rcv_wnd, __u32 *window_clamp,
1731 int wscale_ok, __u8 *rcv_wscale);
1732
1733static inline int tcp_win_from_space(int space)
1734{
1735 return sysctl_tcp_adv_win_scale<=0 ?
1736 (space>>(-sysctl_tcp_adv_win_scale)) :
1737 space - (space>>sysctl_tcp_adv_win_scale);
1738}
1739
1740/* Note: caller must be prepared to deal with negative returns */
1741static inline int tcp_space(const struct sock *sk)
1742{
1743 return tcp_win_from_space(sk->sk_rcvbuf -
1744 atomic_read(&sk->sk_rmem_alloc));
1745}
1746
1747static inline int tcp_full_space(const struct sock *sk)
1748{
1749 return tcp_win_from_space(sk->sk_rcvbuf);
1750}
1751
1752static inline void tcp_acceptq_queue(struct sock *sk, struct open_request *req,
1753 struct sock *child)
1754{
1755 struct tcp_sock *tp = tcp_sk(sk);
1756
1757 req->sk = child;
1758 sk_acceptq_added(sk);
1759
1760 if (!tp->accept_queue_tail) {
1761 tp->accept_queue = req;
1762 } else {
1763 tp->accept_queue_tail->dl_next = req;
1764 }
1765 tp->accept_queue_tail = req;
1766 req->dl_next = NULL;
1767}
1768
1769struct tcp_listen_opt
1770{
1771 u8 max_qlen_log; /* log_2 of maximal queued SYNs */
1772 int qlen;
1773 int qlen_young;
1774 int clock_hand;
1775 u32 hash_rnd;
1776 struct open_request *syn_table[TCP_SYNQ_HSIZE];
1777};
1778
1779static inline void
1780tcp_synq_removed(struct sock *sk, struct open_request *req)
1781{
1782 struct tcp_listen_opt *lopt = tcp_sk(sk)->listen_opt;
1783
1784 if (--lopt->qlen == 0)
1785 tcp_delete_keepalive_timer(sk);
1786 if (req->retrans == 0)
1787 lopt->qlen_young--;
1788}
1789
1790static inline void tcp_synq_added(struct sock *sk)
1791{
1792 struct tcp_listen_opt *lopt = tcp_sk(sk)->listen_opt;
1793
1794 if (lopt->qlen++ == 0)
1795 tcp_reset_keepalive_timer(sk, TCP_TIMEOUT_INIT);
1796 lopt->qlen_young++;
1797}
1798
1799static inline int tcp_synq_len(struct sock *sk)
1800{
1801 return tcp_sk(sk)->listen_opt->qlen;
1802}
1803
1804static inline int tcp_synq_young(struct sock *sk)
1805{
1806 return tcp_sk(sk)->listen_opt->qlen_young;
1807}
1808
1809static inline int tcp_synq_is_full(struct sock *sk)
1810{
1811 return tcp_synq_len(sk) >> tcp_sk(sk)->listen_opt->max_qlen_log;
1812}
1813
1814static inline void tcp_synq_unlink(struct tcp_sock *tp, struct open_request *req,
1815 struct open_request **prev)
1816{
1817 write_lock(&tp->syn_wait_lock);
1818 *prev = req->dl_next;
1819 write_unlock(&tp->syn_wait_lock);
1820}
1821
1822static inline void tcp_synq_drop(struct sock *sk, struct open_request *req,
1823 struct open_request **prev)
1824{
1825 tcp_synq_unlink(tcp_sk(sk), req, prev);
1826 tcp_synq_removed(sk, req);
1827 tcp_openreq_free(req);
1828}
1829
1830static __inline__ void tcp_openreq_init(struct open_request *req,
1831 struct tcp_options_received *rx_opt,
1832 struct sk_buff *skb)
1833{
1834 req->rcv_wnd = 0; /* So that tcp_send_synack() knows! */
1835 req->rcv_isn = TCP_SKB_CB(skb)->seq;
1836 req->mss = rx_opt->mss_clamp;
1837 req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0;
1838 req->tstamp_ok = rx_opt->tstamp_ok;
1839 req->sack_ok = rx_opt->sack_ok;
1840 req->snd_wscale = rx_opt->snd_wscale;
1841 req->wscale_ok = rx_opt->wscale_ok;
1842 req->acked = 0;
1843 req->ecn_ok = 0;
1844 req->rmt_port = skb->h.th->source;
1845}
1846
1847extern void tcp_enter_memory_pressure(void);
1848
1849extern void tcp_listen_wlock(void);
1850
1851/* - We may sleep inside this lock.
1852 * - If sleeping is not required (or called from BH),
1853 * use plain read_(un)lock(&tcp_lhash_lock).
1854 */
1855
1856static inline void tcp_listen_lock(void)
1857{
1858 /* read_lock synchronizes to candidates to writers */
1859 read_lock(&tcp_lhash_lock);
1860 atomic_inc(&tcp_lhash_users);
1861 read_unlock(&tcp_lhash_lock);
1862}
1863
1864static inline void tcp_listen_unlock(void)
1865{
1866 if (atomic_dec_and_test(&tcp_lhash_users))
1867 wake_up(&tcp_lhash_wait);
1868}
1869
1870static inline int keepalive_intvl_when(const struct tcp_sock *tp)
1871{
1872 return tp->keepalive_intvl ? : sysctl_tcp_keepalive_intvl;
1873}
1874
1875static inline int keepalive_time_when(const struct tcp_sock *tp)
1876{
1877 return tp->keepalive_time ? : sysctl_tcp_keepalive_time;
1878}
1879
1880static inline int tcp_fin_time(const struct tcp_sock *tp)
1881{
1882 int fin_timeout = tp->linger2 ? : sysctl_tcp_fin_timeout;
1883
1884 if (fin_timeout < (tp->rto<<2) - (tp->rto>>1))
1885 fin_timeout = (tp->rto<<2) - (tp->rto>>1);
1886
1887 return fin_timeout;
1888}
1889
1890static inline int tcp_paws_check(const struct tcp_options_received *rx_opt, int rst)
1891{
1892 if ((s32)(rx_opt->rcv_tsval - rx_opt->ts_recent) >= 0)
1893 return 0;
1894 if (xtime.tv_sec >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)
1895 return 0;
1896
1897 /* RST segments are not recommended to carry timestamp,
1898 and, if they do, it is recommended to ignore PAWS because
1899 "their cleanup function should take precedence over timestamps."
1900 Certainly, it is mistake. It is necessary to understand the reasons
1901 of this constraint to relax it: if peer reboots, clock may go
1902 out-of-sync and half-open connections will not be reset.
1903 Actually, the problem would be not existing if all
1904 the implementations followed draft about maintaining clock
1905 via reboots. Linux-2.2 DOES NOT!
1906
1907 However, we can relax time bounds for RST segments to MSL.
1908 */
1909 if (rst && xtime.tv_sec >= rx_opt->ts_recent_stamp + TCP_PAWS_MSL)
1910 return 0;
1911 return 1;
1912}
1913
1914static inline void tcp_v4_setup_caps(struct sock *sk, struct dst_entry *dst)
1915{
1916 sk->sk_route_caps = dst->dev->features;
1917 if (sk->sk_route_caps & NETIF_F_TSO) {
1918 if (sock_flag(sk, SOCK_NO_LARGESEND) || dst->header_len)
1919 sk->sk_route_caps &= ~NETIF_F_TSO;
1920 }
1921}
1922
1923#define TCP_CHECK_TIMER(sk) do { } while (0)
1924
1925static inline int tcp_use_frto(const struct sock *sk)
1926{
1927 const struct tcp_sock *tp = tcp_sk(sk);
1928
1929 /* F-RTO must be activated in sysctl and there must be some
1930 * unsent new data, and the advertised window should allow
1931 * sending it.
1932 */
1933 return (sysctl_tcp_frto && sk->sk_send_head &&
1934 !after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
1935 tp->snd_una + tp->snd_wnd));
1936}
1937
1938static inline void tcp_mib_init(void)
1939{
1940 /* See RFC 2012 */
1941 TCP_ADD_STATS_USER(TCP_MIB_RTOALGORITHM, 1);
1942 TCP_ADD_STATS_USER(TCP_MIB_RTOMIN, TCP_RTO_MIN*1000/HZ);
1943 TCP_ADD_STATS_USER(TCP_MIB_RTOMAX, TCP_RTO_MAX*1000/HZ);
1944 TCP_ADD_STATS_USER(TCP_MIB_MAXCONN, -1);
1945}
1946
1947/* /proc */
1948enum tcp_seq_states {
1949 TCP_SEQ_STATE_LISTENING,
1950 TCP_SEQ_STATE_OPENREQ,
1951 TCP_SEQ_STATE_ESTABLISHED,
1952 TCP_SEQ_STATE_TIME_WAIT,
1953};
1954
1955struct tcp_seq_afinfo {
1956 struct module *owner;
1957 char *name;
1958 sa_family_t family;
1959 int (*seq_show) (struct seq_file *m, void *v);
1960 struct file_operations *seq_fops;
1961};
1962
1963struct tcp_iter_state {
1964 sa_family_t family;
1965 enum tcp_seq_states state;
1966 struct sock *syn_wait_sk;
1967 int bucket, sbucket, num, uid;
1968 struct seq_operations seq_ops;
1969};
1970
1971extern int tcp_proc_register(struct tcp_seq_afinfo *afinfo);
1972extern void tcp_proc_unregister(struct tcp_seq_afinfo *afinfo);
1973
1974/* TCP Westwood functions and constants */
1975
1976#define TCP_WESTWOOD_INIT_RTT (20*HZ) /* maybe too conservative?! */
1977#define TCP_WESTWOOD_RTT_MIN (HZ/20) /* 50ms */
1978
1979static inline void tcp_westwood_update_rtt(struct tcp_sock *tp, __u32 rtt_seq)
1980{
1981 if (tcp_is_westwood(tp))
1982 tp->westwood.rtt = rtt_seq;
1983}
1984
1985static inline __u32 __tcp_westwood_bw_rttmin(const struct tcp_sock *tp)
1986{
1987 return max((tp->westwood.bw_est) * (tp->westwood.rtt_min) /
1988 (__u32) (tp->mss_cache_std),
1989 2U);
1990}
1991
1992static inline __u32 tcp_westwood_bw_rttmin(const struct tcp_sock *tp)
1993{
1994 return tcp_is_westwood(tp) ? __tcp_westwood_bw_rttmin(tp) : 0;
1995}
1996
1997static inline int tcp_westwood_ssthresh(struct tcp_sock *tp)
1998{
1999 __u32 ssthresh = 0;
2000
2001 if (tcp_is_westwood(tp)) {
2002 ssthresh = __tcp_westwood_bw_rttmin(tp);
2003 if (ssthresh)
2004 tp->snd_ssthresh = ssthresh;
2005 }
2006
2007 return (ssthresh != 0);
2008}
2009
2010static inline int tcp_westwood_cwnd(struct tcp_sock *tp)
2011{
2012 __u32 cwnd = 0;
2013
2014 if (tcp_is_westwood(tp)) {
2015 cwnd = __tcp_westwood_bw_rttmin(tp);
2016 if (cwnd)
2017 tp->snd_cwnd = cwnd;
2018 }
2019
2020 return (cwnd != 0);
2021}
2022#endif /* _TCP_H */
diff --git a/include/net/tcp_ecn.h b/include/net/tcp_ecn.h
new file mode 100644
index 000000000000..dc1456389a97
--- /dev/null
+++ b/include/net/tcp_ecn.h
@@ -0,0 +1,126 @@
1#ifndef _NET_TCP_ECN_H_
2#define _NET_TCP_ECN_H_ 1
3
4#include <net/inet_ecn.h>
5
6#define TCP_HP_BITS (~(TCP_RESERVED_BITS|TCP_FLAG_PSH))
7
8#define TCP_ECN_OK 1
9#define TCP_ECN_QUEUE_CWR 2
10#define TCP_ECN_DEMAND_CWR 4
11
12static inline void TCP_ECN_queue_cwr(struct tcp_sock *tp)
13{
14 if (tp->ecn_flags&TCP_ECN_OK)
15 tp->ecn_flags |= TCP_ECN_QUEUE_CWR;
16}
17
18
19/* Output functions */
20
21static inline void TCP_ECN_send_synack(struct tcp_sock *tp,
22 struct sk_buff *skb)
23{
24 TCP_SKB_CB(skb)->flags &= ~TCPCB_FLAG_CWR;
25 if (!(tp->ecn_flags&TCP_ECN_OK))
26 TCP_SKB_CB(skb)->flags &= ~TCPCB_FLAG_ECE;
27}
28
29static inline void TCP_ECN_send_syn(struct sock *sk, struct tcp_sock *tp,
30 struct sk_buff *skb)
31{
32 tp->ecn_flags = 0;
33 if (sysctl_tcp_ecn && !(sk->sk_route_caps & NETIF_F_TSO)) {
34 TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_ECE|TCPCB_FLAG_CWR;
35 tp->ecn_flags = TCP_ECN_OK;
36 sock_set_flag(sk, SOCK_NO_LARGESEND);
37 }
38}
39
40static __inline__ void
41TCP_ECN_make_synack(struct open_request *req, struct tcphdr *th)
42{
43 if (req->ecn_ok)
44 th->ece = 1;
45}
46
47static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp,
48 struct sk_buff *skb, int tcp_header_len)
49{
50 if (tp->ecn_flags & TCP_ECN_OK) {
51 /* Not-retransmitted data segment: set ECT and inject CWR. */
52 if (skb->len != tcp_header_len &&
53 !before(TCP_SKB_CB(skb)->seq, tp->snd_nxt)) {
54 INET_ECN_xmit(sk);
55 if (tp->ecn_flags&TCP_ECN_QUEUE_CWR) {
56 tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR;
57 skb->h.th->cwr = 1;
58 }
59 } else {
60 /* ACK or retransmitted segment: clear ECT|CE */
61 INET_ECN_dontxmit(sk);
62 }
63 if (tp->ecn_flags & TCP_ECN_DEMAND_CWR)
64 skb->h.th->ece = 1;
65 }
66}
67
68/* Input functions */
69
70static inline void TCP_ECN_accept_cwr(struct tcp_sock *tp, struct sk_buff *skb)
71{
72 if (skb->h.th->cwr)
73 tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
74}
75
76static inline void TCP_ECN_withdraw_cwr(struct tcp_sock *tp)
77{
78 tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
79}
80
81static inline void TCP_ECN_check_ce(struct tcp_sock *tp, struct sk_buff *skb)
82{
83 if (tp->ecn_flags&TCP_ECN_OK) {
84 if (INET_ECN_is_ce(TCP_SKB_CB(skb)->flags))
85 tp->ecn_flags |= TCP_ECN_DEMAND_CWR;
86 /* Funny extension: if ECT is not set on a segment,
87 * it is surely retransmit. It is not in ECN RFC,
88 * but Linux follows this rule. */
89 else if (INET_ECN_is_not_ect((TCP_SKB_CB(skb)->flags)))
90 tcp_enter_quickack_mode(tp);
91 }
92}
93
94static inline void TCP_ECN_rcv_synack(struct tcp_sock *tp, struct tcphdr *th)
95{
96 if ((tp->ecn_flags&TCP_ECN_OK) && (!th->ece || th->cwr))
97 tp->ecn_flags &= ~TCP_ECN_OK;
98}
99
100static inline void TCP_ECN_rcv_syn(struct tcp_sock *tp, struct tcphdr *th)
101{
102 if ((tp->ecn_flags&TCP_ECN_OK) && (!th->ece || !th->cwr))
103 tp->ecn_flags &= ~TCP_ECN_OK;
104}
105
106static inline int TCP_ECN_rcv_ecn_echo(struct tcp_sock *tp, struct tcphdr *th)
107{
108 if (th->ece && !th->syn && (tp->ecn_flags&TCP_ECN_OK))
109 return 1;
110 return 0;
111}
112
113static inline void TCP_ECN_openreq_child(struct tcp_sock *tp,
114 struct open_request *req)
115{
116 tp->ecn_flags = req->ecn_ok ? TCP_ECN_OK : 0;
117}
118
119static __inline__ void
120TCP_ECN_create_request(struct open_request *req, struct tcphdr *th)
121{
122 if (sysctl_tcp_ecn && th->ece && th->cwr)
123 req->ecn_ok = 1;
124}
125
126#endif
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
new file mode 100644
index 000000000000..8b075ab7a26c
--- /dev/null
+++ b/include/net/transp_v6.h
@@ -0,0 +1,53 @@
1#ifndef _TRANSP_V6_H
2#define _TRANSP_V6_H
3
4#include <net/checksum.h>
5
6/*
7 * IPv6 transport protocols
8 */
9
10#ifdef __KERNEL__
11
12extern struct proto rawv6_prot;
13extern struct proto udpv6_prot;
14extern struct proto tcpv6_prot;
15
16struct flowi;
17
18/* extention headers */
19extern void ipv6_rthdr_init(void);
20extern void ipv6_frag_init(void);
21extern void ipv6_nodata_init(void);
22extern void ipv6_destopt_init(void);
23
24/* transport protocols */
25extern void rawv6_init(void);
26extern void udpv6_init(void);
27extern void tcpv6_init(void);
28
29extern int udpv6_connect(struct sock *sk,
30 struct sockaddr *uaddr,
31 int addr_len);
32
33extern int datagram_recv_ctl(struct sock *sk,
34 struct msghdr *msg,
35 struct sk_buff *skb);
36
37extern int datagram_send_ctl(struct msghdr *msg,
38 struct flowi *fl,
39 struct ipv6_txoptions *opt,
40 int *hlimit);
41
42#define LOOPBACK4_IPV6 __constant_htonl(0x7f000006)
43
44/*
45 * address family specific functions
46 */
47extern struct tcp_func ipv4_specific;
48
49extern int inet6_destroy_sock(struct sock *sk);
50
51#endif
52
53#endif
diff --git a/include/net/udp.h b/include/net/udp.h
new file mode 100644
index 000000000000..c496d10101db
--- /dev/null
+++ b/include/net/udp.h
@@ -0,0 +1,99 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the UDP module.
7 *
8 * Version: @(#)udp.h 1.0.2 05/07/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 *
13 * Fixes:
14 * Alan Cox : Turned on udp checksums. I don't want to
15 * chase 'memory corruption' bugs that aren't!
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version
20 * 2 of the License, or (at your option) any later version.
21 */
22#ifndef _UDP_H
23#define _UDP_H
24
25#include <linux/udp.h>
26#include <linux/ip.h>
27#include <linux/list.h>
28#include <net/sock.h>
29#include <net/snmp.h>
30#include <linux/seq_file.h>
31
32#define UDP_HTABLE_SIZE 128
33
34/* udp.c: This needs to be shared by v4 and v6 because the lookup
35 * and hashing code needs to work with different AF's yet
36 * the port space is shared.
37 */
38extern struct hlist_head udp_hash[UDP_HTABLE_SIZE];
39extern rwlock_t udp_hash_lock;
40
41extern int udp_port_rover;
42
43static inline int udp_lport_inuse(u16 num)
44{
45 struct sock *sk;
46 struct hlist_node *node;
47
48 sk_for_each(sk, node, &udp_hash[num & (UDP_HTABLE_SIZE - 1)])
49 if (inet_sk(sk)->num == num)
50 return 1;
51 return 0;
52}
53
54/* Note: this must match 'valbool' in sock_setsockopt */
55#define UDP_CSUM_NOXMIT 1
56
57/* Used by SunRPC/xprt layer. */
58#define UDP_CSUM_NORCV 2
59
60/* Default, as per the RFC, is to always do csums. */
61#define UDP_CSUM_DEFAULT 0
62
63extern struct proto udp_prot;
64
65
66extern void udp_err(struct sk_buff *, u32);
67
68extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk,
69 struct msghdr *msg, size_t len);
70
71extern int udp_rcv(struct sk_buff *skb);
72extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
73extern int udp_disconnect(struct sock *sk, int flags);
74extern unsigned int udp_poll(struct file *file, struct socket *sock,
75 poll_table *wait);
76
77DECLARE_SNMP_STAT(struct udp_mib, udp_statistics);
78#define UDP_INC_STATS(field) SNMP_INC_STATS(udp_statistics, field)
79#define UDP_INC_STATS_BH(field) SNMP_INC_STATS_BH(udp_statistics, field)
80#define UDP_INC_STATS_USER(field) SNMP_INC_STATS_USER(udp_statistics, field)
81
82/* /proc */
83struct udp_seq_afinfo {
84 struct module *owner;
85 char *name;
86 sa_family_t family;
87 int (*seq_show) (struct seq_file *m, void *v);
88 struct file_operations *seq_fops;
89};
90
91struct udp_iter_state {
92 sa_family_t family;
93 int bucket;
94 struct seq_operations seq_ops;
95};
96
97extern int udp_proc_register(struct udp_seq_afinfo *afinfo);
98extern void udp_proc_unregister(struct udp_seq_afinfo *afinfo);
99#endif /* _UDP_H */
diff --git a/include/net/x25.h b/include/net/x25.h
new file mode 100644
index 000000000000..7a1ba5bbb868
--- /dev/null
+++ b/include/net/x25.h
@@ -0,0 +1,273 @@
1/*
2 * Declarations of X.25 Packet Layer type objects.
3 *
4 * History
5 * nov/17/96 Jonathan Naylor Initial version.
6 * mar/20/00 Daniela Squassoni Disabling/enabling of facilities
7 * negotiation.
8 */
9
10#ifndef _X25_H
11#define _X25_H
12#include <linux/x25.h>
13#include <net/sock.h>
14
15#define X25_ADDR_LEN 16
16
17#define X25_MAX_L2_LEN 18 /* 802.2 LLC */
18
19#define X25_STD_MIN_LEN 3
20#define X25_EXT_MIN_LEN 4
21
22#define X25_GFI_SEQ_MASK 0x30
23#define X25_GFI_STDSEQ 0x10
24#define X25_GFI_EXTSEQ 0x20
25
26#define X25_Q_BIT 0x80
27#define X25_D_BIT 0x40
28#define X25_STD_M_BIT 0x10
29#define X25_EXT_M_BIT 0x01
30
31#define X25_CALL_REQUEST 0x0B
32#define X25_CALL_ACCEPTED 0x0F
33#define X25_CLEAR_REQUEST 0x13
34#define X25_CLEAR_CONFIRMATION 0x17
35#define X25_DATA 0x00
36#define X25_INTERRUPT 0x23
37#define X25_INTERRUPT_CONFIRMATION 0x27
38#define X25_RR 0x01
39#define X25_RNR 0x05
40#define X25_REJ 0x09
41#define X25_RESET_REQUEST 0x1B
42#define X25_RESET_CONFIRMATION 0x1F
43#define X25_REGISTRATION_REQUEST 0xF3
44#define X25_REGISTRATION_CONFIRMATION 0xF7
45#define X25_RESTART_REQUEST 0xFB
46#define X25_RESTART_CONFIRMATION 0xFF
47#define X25_DIAGNOSTIC 0xF1
48#define X25_ILLEGAL 0xFD
49
50/* Define the various conditions that may exist */
51
52#define X25_COND_ACK_PENDING 0x01
53#define X25_COND_OWN_RX_BUSY 0x02
54#define X25_COND_PEER_RX_BUSY 0x04
55
56/* Define Link State constants. */
57enum {
58 X25_STATE_0, /* Ready */
59 X25_STATE_1, /* Awaiting Call Accepted */
60 X25_STATE_2, /* Awaiting Clear Confirmation */
61 X25_STATE_3, /* Data Transfer */
62 X25_STATE_4 /* Awaiting Reset Confirmation */
63};
64
65enum {
66 X25_LINK_STATE_0,
67 X25_LINK_STATE_1,
68 X25_LINK_STATE_2,
69 X25_LINK_STATE_3
70};
71
72#define X25_DEFAULT_T20 (180 * HZ) /* Default T20 value */
73#define X25_DEFAULT_T21 (200 * HZ) /* Default T21 value */
74#define X25_DEFAULT_T22 (180 * HZ) /* Default T22 value */
75#define X25_DEFAULT_T23 (180 * HZ) /* Default T23 value */
76#define X25_DEFAULT_T2 (3 * HZ) /* Default ack holdback value */
77
78#define X25_DEFAULT_WINDOW_SIZE 2 /* Default Window Size */
79#define X25_DEFAULT_PACKET_SIZE X25_PS128 /* Default Packet Size */
80#define X25_DEFAULT_THROUGHPUT 0x0A /* Deafult Throughput */
81#define X25_DEFAULT_REVERSE 0x00 /* Default Reverse Charging */
82
83#define X25_SMODULUS 8
84#define X25_EMODULUS 128
85
86/*
87 * X.25 Facilities constants.
88 */
89
90#define X25_FAC_CLASS_MASK 0xC0
91
92#define X25_FAC_CLASS_A 0x00
93#define X25_FAC_CLASS_B 0x40
94#define X25_FAC_CLASS_C 0x80
95#define X25_FAC_CLASS_D 0xC0
96
97#define X25_FAC_REVERSE 0x01
98#define X25_FAC_THROUGHPUT 0x02
99#define X25_FAC_PACKET_SIZE 0x42
100#define X25_FAC_WINDOW_SIZE 0x43
101
102#define X25_MAX_FAC_LEN 20 /* Plenty to spare */
103#define X25_MAX_CUD_LEN 128
104
105/**
106 * struct x25_route - x25 routing entry
107 * @node - entry in x25_list_lock
108 * @address - Start of address range
109 * @sigdigits - Number of sig digits
110 * @dev - More than one for MLP
111 * @refcnt - reference counter
112 */
113struct x25_route {
114 struct list_head node;
115 struct x25_address address;
116 unsigned int sigdigits;
117 struct net_device *dev;
118 atomic_t refcnt;
119};
120
121struct x25_neigh {
122 struct list_head node;
123 struct net_device *dev;
124 unsigned int state;
125 unsigned int extended;
126 struct sk_buff_head queue;
127 unsigned long t20;
128 struct timer_list t20timer;
129 unsigned long global_facil_mask;
130 atomic_t refcnt;
131};
132
133struct x25_sock {
134 struct sock sk;
135 struct x25_address source_addr, dest_addr;
136 struct x25_neigh *neighbour;
137 unsigned int lci;
138 unsigned char state, condition, qbitincl, intflag;
139 unsigned short vs, vr, va, vl;
140 unsigned long t2, t21, t22, t23;
141 unsigned short fraglen;
142 struct sk_buff_head ack_queue;
143 struct sk_buff_head fragment_queue;
144 struct sk_buff_head interrupt_in_queue;
145 struct sk_buff_head interrupt_out_queue;
146 struct timer_list timer;
147 struct x25_causediag causediag;
148 struct x25_facilities facilities;
149 struct x25_calluserdata calluserdata;
150 unsigned long vc_facil_mask; /* inc_call facilities mask */
151};
152
153static inline struct x25_sock *x25_sk(const struct sock *sk)
154{
155 return (struct x25_sock *)sk;
156}
157
158/* af_x25.c */
159extern int sysctl_x25_restart_request_timeout;
160extern int sysctl_x25_call_request_timeout;
161extern int sysctl_x25_reset_request_timeout;
162extern int sysctl_x25_clear_request_timeout;
163extern int sysctl_x25_ack_holdback_timeout;
164
165extern int x25_addr_ntoa(unsigned char *, struct x25_address *,
166 struct x25_address *);
167extern int x25_addr_aton(unsigned char *, struct x25_address *,
168 struct x25_address *);
169extern struct sock *x25_find_socket(unsigned int, struct x25_neigh *);
170extern void x25_destroy_socket(struct sock *);
171extern int x25_rx_call_request(struct sk_buff *, struct x25_neigh *, unsigned int);
172extern void x25_kill_by_neigh(struct x25_neigh *);
173
174/* x25_dev.c */
175extern void x25_send_frame(struct sk_buff *, struct x25_neigh *);
176extern int x25_lapb_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *);
177extern void x25_establish_link(struct x25_neigh *);
178extern void x25_terminate_link(struct x25_neigh *);
179
180/* x25_facilities.c */
181extern int x25_parse_facilities(struct sk_buff *, struct x25_facilities *, unsigned long *);
182extern int x25_create_facilities(unsigned char *, struct x25_facilities *, unsigned long);
183extern int x25_negotiate_facilities(struct sk_buff *, struct sock *, struct x25_facilities *);
184extern void x25_limit_facilities(struct x25_facilities *, struct x25_neigh *);
185
186/* x25_in.c */
187extern int x25_process_rx_frame(struct sock *, struct sk_buff *);
188extern int x25_backlog_rcv(struct sock *, struct sk_buff *);
189
190/* x25_link.c */
191extern void x25_link_control(struct sk_buff *, struct x25_neigh *, unsigned short);
192extern void x25_link_device_up(struct net_device *);
193extern void x25_link_device_down(struct net_device *);
194extern void x25_link_established(struct x25_neigh *);
195extern void x25_link_terminated(struct x25_neigh *);
196extern void x25_transmit_clear_request(struct x25_neigh *, unsigned int, unsigned char);
197extern void x25_transmit_link(struct sk_buff *, struct x25_neigh *);
198extern int x25_subscr_ioctl(unsigned int, void __user *);
199extern struct x25_neigh *x25_get_neigh(struct net_device *);
200extern void x25_link_free(void);
201
202/* x25_neigh.c */
203static __inline__ void x25_neigh_hold(struct x25_neigh *nb)
204{
205 atomic_inc(&nb->refcnt);
206}
207
208static __inline__ void x25_neigh_put(struct x25_neigh *nb)
209{
210 if (atomic_dec_and_test(&nb->refcnt))
211 kfree(nb);
212}
213
214/* x25_out.c */
215extern int x25_output(struct sock *, struct sk_buff *);
216extern void x25_kick(struct sock *);
217extern void x25_enquiry_response(struct sock *);
218
219/* x25_route.c */
220extern struct x25_route *x25_get_route(struct x25_address *addr);
221extern struct net_device *x25_dev_get(char *);
222extern void x25_route_device_down(struct net_device *dev);
223extern int x25_route_ioctl(unsigned int, void __user *);
224extern void x25_route_free(void);
225
226static __inline__ void x25_route_hold(struct x25_route *rt)
227{
228 atomic_inc(&rt->refcnt);
229}
230
231static __inline__ void x25_route_put(struct x25_route *rt)
232{
233 if (atomic_dec_and_test(&rt->refcnt))
234 kfree(rt);
235}
236
237/* x25_subr.c */
238extern void x25_clear_queues(struct sock *);
239extern void x25_frames_acked(struct sock *, unsigned short);
240extern void x25_requeue_frames(struct sock *);
241extern int x25_validate_nr(struct sock *, unsigned short);
242extern void x25_write_internal(struct sock *, int);
243extern int x25_decode(struct sock *, struct sk_buff *, int *, int *, int *, int *, int *);
244extern void x25_disconnect(struct sock *, int, unsigned char, unsigned char);
245extern int x25_check_calluserdata(struct x25_calluserdata *,struct x25_calluserdata *);
246
247/* x25_timer.c */
248extern void x25_start_heartbeat(struct sock *);
249extern void x25_start_t2timer(struct sock *);
250extern void x25_start_t21timer(struct sock *);
251extern void x25_start_t22timer(struct sock *);
252extern void x25_start_t23timer(struct sock *);
253extern void x25_stop_heartbeat(struct sock *);
254extern void x25_stop_timer(struct sock *);
255extern unsigned long x25_display_timer(struct sock *);
256extern void x25_check_rbuf(struct sock *);
257
258/* sysctl_net_x25.c */
259extern void x25_register_sysctl(void);
260extern void x25_unregister_sysctl(void);
261struct x25_skb_cb {
262 unsigned flags;
263};
264#define X25_SKB_CB(s) ((struct x25_skb_cb *) ((s)->cb))
265
266extern struct hlist_head x25_list;
267extern rwlock_t x25_list_lock;
268extern struct list_head x25_route_list;
269extern rwlock_t x25_route_list_lock;
270
271extern int x25_proc_init(void);
272extern void x25_proc_exit(void);
273#endif
diff --git a/include/net/x25device.h b/include/net/x25device.h
new file mode 100644
index 000000000000..cf36a20ea3c5
--- /dev/null
+++ b/include/net/x25device.h
@@ -0,0 +1,17 @@
1#ifndef _X25DEVICE_H
2#define _X25DEVICE_H
3
4#include <linux/if_ether.h>
5#include <linux/if_packet.h>
6#include <linux/skbuff.h>
7
8static inline unsigned short x25_type_trans(struct sk_buff *skb,
9 struct net_device *dev)
10{
11 skb->mac.raw = skb->data;
12 skb->input_dev = skb->dev = dev;
13 skb->pkt_type = PACKET_HOST;
14
15 return htons(ETH_P_X25);
16}
17#endif
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
new file mode 100644
index 000000000000..73e9a8ca3d3b
--- /dev/null
+++ b/include/net/xfrm.h
@@ -0,0 +1,905 @@
1#ifndef _NET_XFRM_H
2#define _NET_XFRM_H
3
4#include <linux/xfrm.h>
5#include <linux/spinlock.h>
6#include <linux/list.h>
7#include <linux/skbuff.h>
8#include <linux/netdevice.h>
9#include <linux/crypto.h>
10#include <linux/pfkeyv2.h>
11#include <linux/in6.h>
12
13#include <net/sock.h>
14#include <net/dst.h>
15#include <net/route.h>
16#include <net/ipv6.h>
17#include <net/ip6_fib.h>
18
19#define XFRM_ALIGN8(len) (((len) + 7) & ~7)
20
21extern struct semaphore xfrm_cfg_sem;
22
23/* Organization of SPD aka "XFRM rules"
24 ------------------------------------
25
26 Basic objects:
27 - policy rule, struct xfrm_policy (=SPD entry)
28 - bundle of transformations, struct dst_entry == struct xfrm_dst (=SA bundle)
29 - instance of a transformer, struct xfrm_state (=SA)
30 - template to clone xfrm_state, struct xfrm_tmpl
31
32 SPD is plain linear list of xfrm_policy rules, ordered by priority.
33 (To be compatible with existing pfkeyv2 implementations,
34 many rules with priority of 0x7fffffff are allowed to exist and
35 such rules are ordered in an unpredictable way, thanks to bsd folks.)
36
37 Lookup is plain linear search until the first match with selector.
38
39 If "action" is "block", then we prohibit the flow, otherwise:
40 if "xfrms_nr" is zero, the flow passes untransformed. Otherwise,
41 policy entry has list of up to XFRM_MAX_DEPTH transformations,
42 described by templates xfrm_tmpl. Each template is resolved
43 to a complete xfrm_state (see below) and we pack bundle of transformations
44 to a dst_entry returned to requestor.
45
46 dst -. xfrm .-> xfrm_state #1
47 |---. child .-> dst -. xfrm .-> xfrm_state #2
48 |---. child .-> dst -. xfrm .-> xfrm_state #3
49 |---. child .-> NULL
50
51 Bundles are cached at xrfm_policy struct (field ->bundles).
52
53
54 Resolution of xrfm_tmpl
55 -----------------------
56 Template contains:
57 1. ->mode Mode: transport or tunnel
58 2. ->id.proto Protocol: AH/ESP/IPCOMP
59 3. ->id.daddr Remote tunnel endpoint, ignored for transport mode.
60 Q: allow to resolve security gateway?
61 4. ->id.spi If not zero, static SPI.
62 5. ->saddr Local tunnel endpoint, ignored for transport mode.
63 6. ->algos List of allowed algos. Plain bitmask now.
64 Q: ealgos, aalgos, calgos. What a mess...
65 7. ->share Sharing mode.
66 Q: how to implement private sharing mode? To add struct sock* to
67 flow id?
68
69 Having this template we search through SAD searching for entries
70 with appropriate mode/proto/algo, permitted by selector.
71 If no appropriate entry found, it is requested from key manager.
72
73 PROBLEMS:
74 Q: How to find all the bundles referring to a physical path for
75 PMTU discovery? Seems, dst should contain list of all parents...
76 and enter to infinite locking hierarchy disaster.
77 No! It is easier, we will not search for them, let them find us.
78 We add genid to each dst plus pointer to genid of raw IP route,
79 pmtu disc will update pmtu on raw IP route and increase its genid.
80 dst_check() will see this for top level and trigger resyncing
81 metrics. Plus, it will be made via sk->sk_dst_cache. Solved.
82 */
83
84/* Full description of state of transformer. */
85struct xfrm_state
86{
87 /* Note: bydst is re-used during gc */
88 struct list_head bydst;
89 struct list_head byspi;
90
91 atomic_t refcnt;
92 spinlock_t lock;
93
94 struct xfrm_id id;
95 struct xfrm_selector sel;
96
97 /* Key manger bits */
98 struct {
99 u8 state;
100 u8 dying;
101 u32 seq;
102 } km;
103
104 /* Parameters of this state. */
105 struct {
106 u32 reqid;
107 u8 mode;
108 u8 replay_window;
109 u8 aalgo, ealgo, calgo;
110 u8 flags;
111 u16 family;
112 xfrm_address_t saddr;
113 int header_len;
114 int trailer_len;
115 } props;
116
117 struct xfrm_lifetime_cfg lft;
118
119 /* Data for transformer */
120 struct xfrm_algo *aalg;
121 struct xfrm_algo *ealg;
122 struct xfrm_algo *calg;
123
124 /* Data for encapsulator */
125 struct xfrm_encap_tmpl *encap;
126
127 /* IPComp needs an IPIP tunnel for handling uncompressed packets */
128 struct xfrm_state *tunnel;
129
130 /* If a tunnel, number of users + 1 */
131 atomic_t tunnel_users;
132
133 /* State for replay detection */
134 struct xfrm_replay_state replay;
135
136 /* Statistics */
137 struct xfrm_stats stats;
138
139 struct xfrm_lifetime_cur curlft;
140 struct timer_list timer;
141
142 /* Reference to data common to all the instances of this
143 * transformer. */
144 struct xfrm_type *type;
145
146 /* Private data of this transformer, format is opaque,
147 * interpreted by xfrm_type methods. */
148 void *data;
149};
150
151enum {
152 XFRM_STATE_VOID,
153 XFRM_STATE_ACQ,
154 XFRM_STATE_VALID,
155 XFRM_STATE_ERROR,
156 XFRM_STATE_EXPIRED,
157 XFRM_STATE_DEAD
158};
159
160struct xfrm_type;
161struct xfrm_dst;
162struct xfrm_policy_afinfo {
163 unsigned short family;
164 rwlock_t lock;
165 struct xfrm_type_map *type_map;
166 struct dst_ops *dst_ops;
167 void (*garbage_collect)(void);
168 int (*dst_lookup)(struct xfrm_dst **dst, struct flowi *fl);
169 struct dst_entry *(*find_bundle)(struct flowi *fl, struct xfrm_policy *policy);
170 int (*bundle_create)(struct xfrm_policy *policy,
171 struct xfrm_state **xfrm,
172 int nx,
173 struct flowi *fl,
174 struct dst_entry **dst_p);
175 void (*decode_session)(struct sk_buff *skb,
176 struct flowi *fl);
177};
178
179extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
180extern int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
181
182#define XFRM_ACQ_EXPIRES 30
183
184struct xfrm_tmpl;
185struct xfrm_state_afinfo {
186 unsigned short family;
187 rwlock_t lock;
188 struct list_head *state_bydst;
189 struct list_head *state_byspi;
190 void (*init_tempsel)(struct xfrm_state *x, struct flowi *fl,
191 struct xfrm_tmpl *tmpl,
192 xfrm_address_t *daddr, xfrm_address_t *saddr);
193 struct xfrm_state *(*state_lookup)(xfrm_address_t *daddr, u32 spi, u8 proto);
194 struct xfrm_state *(*find_acq)(u8 mode, u32 reqid, u8 proto,
195 xfrm_address_t *daddr, xfrm_address_t *saddr,
196 int create);
197};
198
199extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
200extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
201
202extern void xfrm_state_delete_tunnel(struct xfrm_state *x);
203
204struct xfrm_decap_state;
205struct xfrm_type
206{
207 char *description;
208 struct module *owner;
209 __u8 proto;
210
211 int (*init_state)(struct xfrm_state *x, void *args);
212 void (*destructor)(struct xfrm_state *);
213 int (*input)(struct xfrm_state *, struct xfrm_decap_state *, struct sk_buff *skb);
214 int (*post_input)(struct xfrm_state *, struct xfrm_decap_state *, struct sk_buff *skb);
215 int (*output)(struct xfrm_state *, struct sk_buff *pskb);
216 /* Estimate maximal size of result of transformation of a dgram */
217 u32 (*get_max_size)(struct xfrm_state *, int size);
218};
219
220struct xfrm_type_map {
221 rwlock_t lock;
222 struct xfrm_type *map[256];
223};
224
225extern int xfrm_register_type(struct xfrm_type *type, unsigned short family);
226extern int xfrm_unregister_type(struct xfrm_type *type, unsigned short family);
227extern struct xfrm_type *xfrm_get_type(u8 proto, unsigned short family);
228extern void xfrm_put_type(struct xfrm_type *type);
229
230struct xfrm_tmpl
231{
232/* id in template is interpreted as:
233 * daddr - destination of tunnel, may be zero for transport mode.
234 * spi - zero to acquire spi. Not zero if spi is static, then
235 * daddr must be fixed too.
236 * proto - AH/ESP/IPCOMP
237 */
238 struct xfrm_id id;
239
240/* Source address of tunnel. Ignored, if it is not a tunnel. */
241 xfrm_address_t saddr;
242
243 __u32 reqid;
244
245/* Mode: transport/tunnel */
246 __u8 mode;
247
248/* Sharing mode: unique, this session only, this user only etc. */
249 __u8 share;
250
251/* May skip this transfomration if no SA is found */
252 __u8 optional;
253
254/* Bit mask of algos allowed for acquisition */
255 __u32 aalgos;
256 __u32 ealgos;
257 __u32 calgos;
258};
259
260#define XFRM_MAX_DEPTH 4
261
262struct xfrm_policy
263{
264 struct xfrm_policy *next;
265 struct list_head list;
266
267 /* This lock only affects elements except for entry. */
268 rwlock_t lock;
269 atomic_t refcnt;
270 struct timer_list timer;
271
272 u32 priority;
273 u32 index;
274 struct xfrm_selector selector;
275 struct xfrm_lifetime_cfg lft;
276 struct xfrm_lifetime_cur curlft;
277 struct dst_entry *bundles;
278 __u16 family;
279 __u8 action;
280 __u8 flags;
281 __u8 dead;
282 __u8 xfrm_nr;
283 struct xfrm_tmpl xfrm_vec[XFRM_MAX_DEPTH];
284};
285
286#define XFRM_KM_TIMEOUT 30
287
288struct xfrm_mgr
289{
290 struct list_head list;
291 char *id;
292 int (*notify)(struct xfrm_state *x, int event);
293 int (*acquire)(struct xfrm_state *x, struct xfrm_tmpl *, struct xfrm_policy *xp, int dir);
294 struct xfrm_policy *(*compile_policy)(u16 family, int opt, u8 *data, int len, int *dir);
295 int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport);
296 int (*notify_policy)(struct xfrm_policy *x, int dir, int event);
297};
298
299extern int xfrm_register_km(struct xfrm_mgr *km);
300extern int xfrm_unregister_km(struct xfrm_mgr *km);
301
302
303extern struct xfrm_policy *xfrm_policy_list[XFRM_POLICY_MAX*2];
304
305static inline void xfrm_pol_hold(struct xfrm_policy *policy)
306{
307 if (likely(policy != NULL))
308 atomic_inc(&policy->refcnt);
309}
310
311extern void __xfrm_policy_destroy(struct xfrm_policy *policy);
312
313static inline void xfrm_pol_put(struct xfrm_policy *policy)
314{
315 if (atomic_dec_and_test(&policy->refcnt))
316 __xfrm_policy_destroy(policy);
317}
318
319#define XFRM_DST_HSIZE 1024
320
321static __inline__
322unsigned __xfrm4_dst_hash(xfrm_address_t *addr)
323{
324 unsigned h;
325 h = ntohl(addr->a4);
326 h = (h ^ (h>>16)) % XFRM_DST_HSIZE;
327 return h;
328}
329
330static __inline__
331unsigned __xfrm6_dst_hash(xfrm_address_t *addr)
332{
333 unsigned h;
334 h = ntohl(addr->a6[2]^addr->a6[3]);
335 h = (h ^ (h>>16)) % XFRM_DST_HSIZE;
336 return h;
337}
338
339static __inline__
340unsigned xfrm_dst_hash(xfrm_address_t *addr, unsigned short family)
341{
342 switch (family) {
343 case AF_INET:
344 return __xfrm4_dst_hash(addr);
345 case AF_INET6:
346 return __xfrm6_dst_hash(addr);
347 }
348 return 0;
349}
350
351static __inline__
352unsigned __xfrm4_spi_hash(xfrm_address_t *addr, u32 spi, u8 proto)
353{
354 unsigned h;
355 h = ntohl(addr->a4^spi^proto);
356 h = (h ^ (h>>10) ^ (h>>20)) % XFRM_DST_HSIZE;
357 return h;
358}
359
360static __inline__
361unsigned __xfrm6_spi_hash(xfrm_address_t *addr, u32 spi, u8 proto)
362{
363 unsigned h;
364 h = ntohl(addr->a6[2]^addr->a6[3]^spi^proto);
365 h = (h ^ (h>>10) ^ (h>>20)) % XFRM_DST_HSIZE;
366 return h;
367}
368
369static __inline__
370unsigned xfrm_spi_hash(xfrm_address_t *addr, u32 spi, u8 proto, unsigned short family)
371{
372 switch (family) {
373 case AF_INET:
374 return __xfrm4_spi_hash(addr, spi, proto);
375 case AF_INET6:
376 return __xfrm6_spi_hash(addr, spi, proto);
377 }
378 return 0; /*XXX*/
379}
380
381extern void __xfrm_state_destroy(struct xfrm_state *);
382
383static inline void xfrm_state_put(struct xfrm_state *x)
384{
385 if (atomic_dec_and_test(&x->refcnt))
386 __xfrm_state_destroy(x);
387}
388
389static inline void xfrm_state_hold(struct xfrm_state *x)
390{
391 atomic_inc(&x->refcnt);
392}
393
394static __inline__ int addr_match(void *token1, void *token2, int prefixlen)
395{
396 __u32 *a1 = token1;
397 __u32 *a2 = token2;
398 int pdw;
399 int pbi;
400
401 pdw = prefixlen >> 5; /* num of whole __u32 in prefix */
402 pbi = prefixlen & 0x1f; /* num of bits in incomplete u32 in prefix */
403
404 if (pdw)
405 if (memcmp(a1, a2, pdw << 2))
406 return 0;
407
408 if (pbi) {
409 __u32 mask;
410
411 mask = htonl((0xffffffff) << (32 - pbi));
412
413 if ((a1[pdw] ^ a2[pdw]) & mask)
414 return 0;
415 }
416
417 return 1;
418}
419
420static __inline__
421u16 xfrm_flowi_sport(struct flowi *fl)
422{
423 u16 port;
424 switch(fl->proto) {
425 case IPPROTO_TCP:
426 case IPPROTO_UDP:
427 case IPPROTO_SCTP:
428 port = fl->fl_ip_sport;
429 break;
430 case IPPROTO_ICMP:
431 case IPPROTO_ICMPV6:
432 port = htons(fl->fl_icmp_type);
433 break;
434 default:
435 port = 0; /*XXX*/
436 }
437 return port;
438}
439
440static __inline__
441u16 xfrm_flowi_dport(struct flowi *fl)
442{
443 u16 port;
444 switch(fl->proto) {
445 case IPPROTO_TCP:
446 case IPPROTO_UDP:
447 case IPPROTO_SCTP:
448 port = fl->fl_ip_dport;
449 break;
450 case IPPROTO_ICMP:
451 case IPPROTO_ICMPV6:
452 port = htons(fl->fl_icmp_code);
453 break;
454 default:
455 port = 0; /*XXX*/
456 }
457 return port;
458}
459
460static inline int
461__xfrm4_selector_match(struct xfrm_selector *sel, struct flowi *fl)
462{
463 return addr_match(&fl->fl4_dst, &sel->daddr, sel->prefixlen_d) &&
464 addr_match(&fl->fl4_src, &sel->saddr, sel->prefixlen_s) &&
465 !((xfrm_flowi_dport(fl) ^ sel->dport) & sel->dport_mask) &&
466 !((xfrm_flowi_sport(fl) ^ sel->sport) & sel->sport_mask) &&
467 (fl->proto == sel->proto || !sel->proto) &&
468 (fl->oif == sel->ifindex || !sel->ifindex);
469}
470
471static inline int
472__xfrm6_selector_match(struct xfrm_selector *sel, struct flowi *fl)
473{
474 return addr_match(&fl->fl6_dst, &sel->daddr, sel->prefixlen_d) &&
475 addr_match(&fl->fl6_src, &sel->saddr, sel->prefixlen_s) &&
476 !((xfrm_flowi_dport(fl) ^ sel->dport) & sel->dport_mask) &&
477 !((xfrm_flowi_sport(fl) ^ sel->sport) & sel->sport_mask) &&
478 (fl->proto == sel->proto || !sel->proto) &&
479 (fl->oif == sel->ifindex || !sel->ifindex);
480}
481
482static inline int
483xfrm_selector_match(struct xfrm_selector *sel, struct flowi *fl,
484 unsigned short family)
485{
486 switch (family) {
487 case AF_INET:
488 return __xfrm4_selector_match(sel, fl);
489 case AF_INET6:
490 return __xfrm6_selector_match(sel, fl);
491 }
492 return 0;
493}
494
495/* A struct encoding bundle of transformations to apply to some set of flow.
496 *
497 * dst->child points to the next element of bundle.
498 * dst->xfrm points to an instanse of transformer.
499 *
500 * Due to unfortunate limitations of current routing cache, which we
501 * have no time to fix, it mirrors struct rtable and bound to the same
502 * routing key, including saddr,daddr. However, we can have many of
503 * bundles differing by session id. All the bundles grow from a parent
504 * policy rule.
505 */
506struct xfrm_dst
507{
508 union {
509 struct xfrm_dst *next;
510 struct dst_entry dst;
511 struct rtable rt;
512 struct rt6_info rt6;
513 } u;
514 struct dst_entry *route;
515 u32 route_mtu_cached;
516 u32 child_mtu_cached;
517};
518
519/* Decapsulation state, used by the input to store data during
520 * decapsulation procedure, to be used later (during the policy
521 * check
522 */
523struct xfrm_decap_state {
524 char decap_data[20];
525 __u16 decap_type;
526};
527
528struct sec_decap_state {
529 struct xfrm_state *xvec;
530 struct xfrm_decap_state decap;
531};
532
533struct sec_path
534{
535 atomic_t refcnt;
536 int len;
537 struct sec_decap_state x[XFRM_MAX_DEPTH];
538};
539
540static inline struct sec_path *
541secpath_get(struct sec_path *sp)
542{
543 if (sp)
544 atomic_inc(&sp->refcnt);
545 return sp;
546}
547
548extern void __secpath_destroy(struct sec_path *sp);
549
550static inline void
551secpath_put(struct sec_path *sp)
552{
553 if (sp && atomic_dec_and_test(&sp->refcnt))
554 __secpath_destroy(sp);
555}
556
557extern struct sec_path *secpath_dup(struct sec_path *src);
558
559static inline void
560secpath_reset(struct sk_buff *skb)
561{
562#ifdef CONFIG_XFRM
563 secpath_put(skb->sp);
564 skb->sp = NULL;
565#endif
566}
567
568static inline int
569__xfrm4_state_addr_cmp(struct xfrm_tmpl *tmpl, struct xfrm_state *x)
570{
571 return (tmpl->saddr.a4 &&
572 tmpl->saddr.a4 != x->props.saddr.a4);
573}
574
575static inline int
576__xfrm6_state_addr_cmp(struct xfrm_tmpl *tmpl, struct xfrm_state *x)
577{
578 return (!ipv6_addr_any((struct in6_addr*)&tmpl->saddr) &&
579 ipv6_addr_cmp((struct in6_addr *)&tmpl->saddr, (struct in6_addr*)&x->props.saddr));
580}
581
582static inline int
583xfrm_state_addr_cmp(struct xfrm_tmpl *tmpl, struct xfrm_state *x, unsigned short family)
584{
585 switch (family) {
586 case AF_INET:
587 return __xfrm4_state_addr_cmp(tmpl, x);
588 case AF_INET6:
589 return __xfrm6_state_addr_cmp(tmpl, x);
590 }
591 return !0;
592}
593
594#ifdef CONFIG_XFRM
595
596extern int __xfrm_policy_check(struct sock *, int dir, struct sk_buff *skb, unsigned short family);
597
598static inline int xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, unsigned short family)
599{
600 if (sk && sk->sk_policy[XFRM_POLICY_IN])
601 return __xfrm_policy_check(sk, dir, skb, family);
602
603 return (!xfrm_policy_list[dir] && !skb->sp) ||
604 (skb->dst->flags & DST_NOPOLICY) ||
605 __xfrm_policy_check(sk, dir, skb, family);
606}
607
608static inline int xfrm4_policy_check(struct sock *sk, int dir, struct sk_buff *skb)
609{
610 return xfrm_policy_check(sk, dir, skb, AF_INET);
611}
612
613static inline int xfrm6_policy_check(struct sock *sk, int dir, struct sk_buff *skb)
614{
615 return xfrm_policy_check(sk, dir, skb, AF_INET6);
616}
617
618
619extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family);
620
621static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family)
622{
623 return !xfrm_policy_list[XFRM_POLICY_OUT] ||
624 (skb->dst->flags & DST_NOXFRM) ||
625 __xfrm_route_forward(skb, family);
626}
627
628static inline int xfrm4_route_forward(struct sk_buff *skb)
629{
630 return xfrm_route_forward(skb, AF_INET);
631}
632
633static inline int xfrm6_route_forward(struct sk_buff *skb)
634{
635 return xfrm_route_forward(skb, AF_INET6);
636}
637
638extern int __xfrm_sk_clone_policy(struct sock *sk);
639
640static inline int xfrm_sk_clone_policy(struct sock *sk)
641{
642 if (unlikely(sk->sk_policy[0] || sk->sk_policy[1]))
643 return __xfrm_sk_clone_policy(sk);
644 return 0;
645}
646
647extern void xfrm_policy_delete(struct xfrm_policy *pol, int dir);
648
649static inline void xfrm_sk_free_policy(struct sock *sk)
650{
651 if (unlikely(sk->sk_policy[0] != NULL)) {
652 xfrm_policy_delete(sk->sk_policy[0], XFRM_POLICY_MAX);
653 sk->sk_policy[0] = NULL;
654 }
655 if (unlikely(sk->sk_policy[1] != NULL)) {
656 xfrm_policy_delete(sk->sk_policy[1], XFRM_POLICY_MAX+1);
657 sk->sk_policy[1] = NULL;
658 }
659}
660
661#else
662
663static inline void xfrm_sk_free_policy(struct sock *sk) {}
664static inline int xfrm_sk_clone_policy(struct sock *sk) { return 0; }
665static inline int xfrm6_route_forward(struct sk_buff *skb) { return 1; }
666static inline int xfrm4_route_forward(struct sk_buff *skb) { return 1; }
667static inline int xfrm6_policy_check(struct sock *sk, int dir, struct sk_buff *skb)
668{
669 return 1;
670}
671static inline int xfrm4_policy_check(struct sock *sk, int dir, struct sk_buff *skb)
672{
673 return 1;
674}
675static inline int xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, unsigned short family)
676{
677 return 1;
678}
679#endif
680
681static __inline__
682xfrm_address_t *xfrm_flowi_daddr(struct flowi *fl, unsigned short family)
683{
684 switch (family){
685 case AF_INET:
686 return (xfrm_address_t *)&fl->fl4_dst;
687 case AF_INET6:
688 return (xfrm_address_t *)&fl->fl6_dst;
689 }
690 return NULL;
691}
692
693static __inline__
694xfrm_address_t *xfrm_flowi_saddr(struct flowi *fl, unsigned short family)
695{
696 switch (family){
697 case AF_INET:
698 return (xfrm_address_t *)&fl->fl4_src;
699 case AF_INET6:
700 return (xfrm_address_t *)&fl->fl6_src;
701 }
702 return NULL;
703}
704
705static __inline__ int
706__xfrm4_state_addr_check(struct xfrm_state *x,
707 xfrm_address_t *daddr, xfrm_address_t *saddr)
708{
709 if (daddr->a4 == x->id.daddr.a4 &&
710 (saddr->a4 == x->props.saddr.a4 || !saddr->a4 || !x->props.saddr.a4))
711 return 1;
712 return 0;
713}
714
715static __inline__ int
716__xfrm6_state_addr_check(struct xfrm_state *x,
717 xfrm_address_t *daddr, xfrm_address_t *saddr)
718{
719 if (!ipv6_addr_cmp((struct in6_addr *)daddr, (struct in6_addr *)&x->id.daddr) &&
720 (!ipv6_addr_cmp((struct in6_addr *)saddr, (struct in6_addr *)&x->props.saddr)||
721 ipv6_addr_any((struct in6_addr *)saddr) ||
722 ipv6_addr_any((struct in6_addr *)&x->props.saddr)))
723 return 1;
724 return 0;
725}
726
727static __inline__ int
728xfrm_state_addr_check(struct xfrm_state *x,
729 xfrm_address_t *daddr, xfrm_address_t *saddr,
730 unsigned short family)
731{
732 switch (family) {
733 case AF_INET:
734 return __xfrm4_state_addr_check(x, daddr, saddr);
735 case AF_INET6:
736 return __xfrm6_state_addr_check(x, daddr, saddr);
737 }
738 return 0;
739}
740
741static inline int xfrm_state_kern(struct xfrm_state *x)
742{
743 return atomic_read(&x->tunnel_users);
744}
745
746/*
747 * xfrm algorithm information
748 */
749struct xfrm_algo_auth_info {
750 u16 icv_truncbits;
751 u16 icv_fullbits;
752};
753
754struct xfrm_algo_encr_info {
755 u16 blockbits;
756 u16 defkeybits;
757};
758
759struct xfrm_algo_comp_info {
760 u16 threshold;
761};
762
763struct xfrm_algo_desc {
764 char *name;
765 u8 available:1;
766 union {
767 struct xfrm_algo_auth_info auth;
768 struct xfrm_algo_encr_info encr;
769 struct xfrm_algo_comp_info comp;
770 } uinfo;
771 struct sadb_alg desc;
772};
773
774/* XFRM tunnel handlers. */
775struct xfrm_tunnel {
776 int (*handler)(struct sk_buff *skb);
777 void (*err_handler)(struct sk_buff *skb, void *info);
778};
779
780struct xfrm6_tunnel {
781 int (*handler)(struct sk_buff **pskb, unsigned int *nhoffp);
782 void (*err_handler)(struct sk_buff *skb, struct inet6_skb_parm *opt,
783 int type, int code, int offset, __u32 info);
784};
785
786extern void xfrm_init(void);
787extern void xfrm4_init(void);
788extern void xfrm6_init(void);
789extern void xfrm6_fini(void);
790extern void xfrm_state_init(void);
791extern void xfrm4_state_init(void);
792extern void xfrm4_state_fini(void);
793extern void xfrm6_state_init(void);
794extern void xfrm6_state_fini(void);
795
796extern int xfrm_state_walk(u8 proto, int (*func)(struct xfrm_state *, int, void*), void *);
797extern struct xfrm_state *xfrm_state_alloc(void);
798extern struct xfrm_state *xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
799 struct flowi *fl, struct xfrm_tmpl *tmpl,
800 struct xfrm_policy *pol, int *err,
801 unsigned short family);
802extern int xfrm_state_check_expire(struct xfrm_state *x);
803extern void xfrm_state_insert(struct xfrm_state *x);
804extern int xfrm_state_add(struct xfrm_state *x);
805extern int xfrm_state_update(struct xfrm_state *x);
806extern struct xfrm_state *xfrm_state_lookup(xfrm_address_t *daddr, u32 spi, u8 proto, unsigned short family);
807extern struct xfrm_state *xfrm_find_acq_byseq(u32 seq);
808extern void xfrm_state_delete(struct xfrm_state *x);
809extern void xfrm_state_flush(u8 proto);
810extern int xfrm_replay_check(struct xfrm_state *x, u32 seq);
811extern void xfrm_replay_advance(struct xfrm_state *x, u32 seq);
812extern int xfrm_state_check(struct xfrm_state *x, struct sk_buff *skb);
813extern int xfrm_state_mtu(struct xfrm_state *x, int mtu);
814extern int xfrm4_rcv(struct sk_buff *skb);
815extern int xfrm4_output(struct sk_buff *skb);
816extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler);
817extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler);
818extern int xfrm6_rcv_spi(struct sk_buff **pskb, unsigned int *nhoffp, u32 spi);
819extern int xfrm6_rcv(struct sk_buff **pskb, unsigned int *nhoffp);
820extern int xfrm6_tunnel_register(struct xfrm6_tunnel *handler);
821extern int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler);
822extern u32 xfrm6_tunnel_alloc_spi(xfrm_address_t *saddr);
823extern void xfrm6_tunnel_free_spi(xfrm_address_t *saddr);
824extern u32 xfrm6_tunnel_spi_lookup(xfrm_address_t *saddr);
825extern int xfrm6_output(struct sk_buff *skb);
826
827#ifdef CONFIG_XFRM
828extern int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type);
829extern int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen);
830extern int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, unsigned short family);
831#else
832static inline int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen)
833{
834 return -ENOPROTOOPT;
835}
836
837static inline int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type)
838{
839 /* should not happen */
840 kfree_skb(skb);
841 return 0;
842}
843static inline int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, unsigned short family)
844{
845 return -EINVAL;
846}
847#endif
848
849struct xfrm_policy *xfrm_policy_alloc(int gfp);
850extern int xfrm_policy_walk(int (*func)(struct xfrm_policy *, int, int, void*), void *);
851int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl);
852struct xfrm_policy *xfrm_policy_bysel(int dir, struct xfrm_selector *sel,
853 int delete);
854struct xfrm_policy *xfrm_policy_byid(int dir, u32 id, int delete);
855void xfrm_policy_flush(void);
856u32 xfrm_get_acqseq(void);
857void xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi);
858struct xfrm_state * xfrm_find_acq(u8 mode, u32 reqid, u8 proto,
859 xfrm_address_t *daddr, xfrm_address_t *saddr,
860 int create, unsigned short family);
861extern void xfrm_policy_flush(void);
862extern int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol);
863extern int xfrm_flush_bundles(void);
864extern int xfrm_bundle_ok(struct xfrm_dst *xdst, struct flowi *fl, int family);
865extern void xfrm_init_pmtu(struct dst_entry *dst);
866
867extern wait_queue_head_t km_waitq;
868extern int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport);
869extern void km_policy_expired(struct xfrm_policy *pol, int dir, int hard);
870
871extern void xfrm_input_init(void);
872extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq);
873
874extern void xfrm_probe_algs(void);
875extern int xfrm_count_auth_supported(void);
876extern int xfrm_count_enc_supported(void);
877extern struct xfrm_algo_desc *xfrm_aalg_get_byidx(unsigned int idx);
878extern struct xfrm_algo_desc *xfrm_ealg_get_byidx(unsigned int idx);
879extern struct xfrm_algo_desc *xfrm_aalg_get_byid(int alg_id);
880extern struct xfrm_algo_desc *xfrm_ealg_get_byid(int alg_id);
881extern struct xfrm_algo_desc *xfrm_calg_get_byid(int alg_id);
882extern struct xfrm_algo_desc *xfrm_aalg_get_byname(char *name, int probe);
883extern struct xfrm_algo_desc *xfrm_ealg_get_byname(char *name, int probe);
884extern struct xfrm_algo_desc *xfrm_calg_get_byname(char *name, int probe);
885
886struct crypto_tfm;
887typedef void (icv_update_fn_t)(struct crypto_tfm *, struct scatterlist *, unsigned int);
888
889extern void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
890 int offset, int len, icv_update_fn_t icv_update);
891
892static inline int xfrm_addr_cmp(xfrm_address_t *a, xfrm_address_t *b,
893 int family)
894{
895 switch (family) {
896 default:
897 case AF_INET:
898 return a->a4 - b->a4;
899 case AF_INET6:
900 return ipv6_addr_cmp((struct in6_addr *)a,
901 (struct in6_addr *)b);
902 }
903}
904
905#endif /* _NET_XFRM_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-22 11:20:38 -0400