diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/inetdevice.h |
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/linux/inetdevice.h')
-rw-r--r-- | include/linux/inetdevice.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h new file mode 100644 index 000000000000..6fafb27877a7 --- /dev/null +++ b/include/linux/inetdevice.h | |||
@@ -0,0 +1,190 @@ | |||
1 | #ifndef _LINUX_INETDEVICE_H | ||
2 | #define _LINUX_INETDEVICE_H | ||
3 | |||
4 | #ifdef __KERNEL__ | ||
5 | |||
6 | #include <linux/if.h> | ||
7 | #include <linux/netdevice.h> | ||
8 | #include <linux/rcupdate.h> | ||
9 | #include <linux/timer.h> | ||
10 | |||
11 | struct ipv4_devconf | ||
12 | { | ||
13 | int accept_redirects; | ||
14 | int send_redirects; | ||
15 | int secure_redirects; | ||
16 | int shared_media; | ||
17 | int accept_source_route; | ||
18 | int rp_filter; | ||
19 | int proxy_arp; | ||
20 | int bootp_relay; | ||
21 | int log_martians; | ||
22 | int forwarding; | ||
23 | int mc_forwarding; | ||
24 | int tag; | ||
25 | int arp_filter; | ||
26 | int arp_announce; | ||
27 | int arp_ignore; | ||
28 | int medium_id; | ||
29 | int no_xfrm; | ||
30 | int no_policy; | ||
31 | int force_igmp_version; | ||
32 | void *sysctl; | ||
33 | }; | ||
34 | |||
35 | extern struct ipv4_devconf ipv4_devconf; | ||
36 | |||
37 | struct in_device | ||
38 | { | ||
39 | struct net_device *dev; | ||
40 | atomic_t refcnt; | ||
41 | int dead; | ||
42 | struct in_ifaddr *ifa_list; /* IP ifaddr chain */ | ||
43 | rwlock_t mc_list_lock; | ||
44 | struct ip_mc_list *mc_list; /* IP multicast filter chain */ | ||
45 | spinlock_t mc_tomb_lock; | ||
46 | struct ip_mc_list *mc_tomb; | ||
47 | unsigned long mr_v1_seen; | ||
48 | unsigned long mr_v2_seen; | ||
49 | unsigned long mr_maxdelay; | ||
50 | unsigned char mr_qrv; | ||
51 | unsigned char mr_gq_running; | ||
52 | unsigned char mr_ifc_count; | ||
53 | struct timer_list mr_gq_timer; /* general query timer */ | ||
54 | struct timer_list mr_ifc_timer; /* interface change timer */ | ||
55 | |||
56 | struct neigh_parms *arp_parms; | ||
57 | struct ipv4_devconf cnf; | ||
58 | struct rcu_head rcu_head; | ||
59 | }; | ||
60 | |||
61 | #define IN_DEV_FORWARD(in_dev) ((in_dev)->cnf.forwarding) | ||
62 | #define IN_DEV_MFORWARD(in_dev) (ipv4_devconf.mc_forwarding && (in_dev)->cnf.mc_forwarding) | ||
63 | #define IN_DEV_RPFILTER(in_dev) (ipv4_devconf.rp_filter && (in_dev)->cnf.rp_filter) | ||
64 | #define IN_DEV_SOURCE_ROUTE(in_dev) (ipv4_devconf.accept_source_route && (in_dev)->cnf.accept_source_route) | ||
65 | #define IN_DEV_BOOTP_RELAY(in_dev) (ipv4_devconf.bootp_relay && (in_dev)->cnf.bootp_relay) | ||
66 | |||
67 | #define IN_DEV_LOG_MARTIANS(in_dev) (ipv4_devconf.log_martians || (in_dev)->cnf.log_martians) | ||
68 | #define IN_DEV_PROXY_ARP(in_dev) (ipv4_devconf.proxy_arp || (in_dev)->cnf.proxy_arp) | ||
69 | #define IN_DEV_SHARED_MEDIA(in_dev) (ipv4_devconf.shared_media || (in_dev)->cnf.shared_media) | ||
70 | #define IN_DEV_TX_REDIRECTS(in_dev) (ipv4_devconf.send_redirects || (in_dev)->cnf.send_redirects) | ||
71 | #define IN_DEV_SEC_REDIRECTS(in_dev) (ipv4_devconf.secure_redirects || (in_dev)->cnf.secure_redirects) | ||
72 | #define IN_DEV_IDTAG(in_dev) ((in_dev)->cnf.tag) | ||
73 | #define IN_DEV_MEDIUM_ID(in_dev) ((in_dev)->cnf.medium_id) | ||
74 | |||
75 | #define IN_DEV_RX_REDIRECTS(in_dev) \ | ||
76 | ((IN_DEV_FORWARD(in_dev) && \ | ||
77 | (ipv4_devconf.accept_redirects && (in_dev)->cnf.accept_redirects)) \ | ||
78 | || (!IN_DEV_FORWARD(in_dev) && \ | ||
79 | (ipv4_devconf.accept_redirects || (in_dev)->cnf.accept_redirects))) | ||
80 | |||
81 | #define IN_DEV_ARPFILTER(in_dev) (ipv4_devconf.arp_filter || (in_dev)->cnf.arp_filter) | ||
82 | #define IN_DEV_ARP_ANNOUNCE(in_dev) (max(ipv4_devconf.arp_announce, (in_dev)->cnf.arp_announce)) | ||
83 | #define IN_DEV_ARP_IGNORE(in_dev) (max(ipv4_devconf.arp_ignore, (in_dev)->cnf.arp_ignore)) | ||
84 | |||
85 | struct in_ifaddr | ||
86 | { | ||
87 | struct in_ifaddr *ifa_next; | ||
88 | struct in_device *ifa_dev; | ||
89 | struct rcu_head rcu_head; | ||
90 | u32 ifa_local; | ||
91 | u32 ifa_address; | ||
92 | u32 ifa_mask; | ||
93 | u32 ifa_broadcast; | ||
94 | u32 ifa_anycast; | ||
95 | unsigned char ifa_scope; | ||
96 | unsigned char ifa_flags; | ||
97 | unsigned char ifa_prefixlen; | ||
98 | char ifa_label[IFNAMSIZ]; | ||
99 | }; | ||
100 | |||
101 | extern int register_inetaddr_notifier(struct notifier_block *nb); | ||
102 | extern int unregister_inetaddr_notifier(struct notifier_block *nb); | ||
103 | |||
104 | extern struct net_device *ip_dev_find(u32 addr); | ||
105 | extern int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b); | ||
106 | extern int devinet_ioctl(unsigned int cmd, void __user *); | ||
107 | extern void devinet_init(void); | ||
108 | extern struct in_device *inetdev_init(struct net_device *dev); | ||
109 | extern struct in_device *inetdev_by_index(int); | ||
110 | extern u32 inet_select_addr(const struct net_device *dev, u32 dst, int scope); | ||
111 | extern u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scope); | ||
112 | extern struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, u32 prefix, u32 mask); | ||
113 | extern void inet_forward_change(void); | ||
114 | |||
115 | static __inline__ int inet_ifa_match(u32 addr, struct in_ifaddr *ifa) | ||
116 | { | ||
117 | return !((addr^ifa->ifa_address)&ifa->ifa_mask); | ||
118 | } | ||
119 | |||
120 | /* | ||
121 | * Check if a mask is acceptable. | ||
122 | */ | ||
123 | |||
124 | static __inline__ int bad_mask(u32 mask, u32 addr) | ||
125 | { | ||
126 | if (addr & (mask = ~mask)) | ||
127 | return 1; | ||
128 | mask = ntohl(mask); | ||
129 | if (mask & (mask+1)) | ||
130 | return 1; | ||
131 | return 0; | ||
132 | } | ||
133 | |||
134 | #define for_primary_ifa(in_dev) { struct in_ifaddr *ifa; \ | ||
135 | for (ifa = (in_dev)->ifa_list; ifa && !(ifa->ifa_flags&IFA_F_SECONDARY); ifa = ifa->ifa_next) | ||
136 | |||
137 | #define for_ifa(in_dev) { struct in_ifaddr *ifa; \ | ||
138 | for (ifa = (in_dev)->ifa_list; ifa; ifa = ifa->ifa_next) | ||
139 | |||
140 | |||
141 | #define endfor_ifa(in_dev) } | ||
142 | |||
143 | static __inline__ struct in_device * | ||
144 | in_dev_get(const struct net_device *dev) | ||
145 | { | ||
146 | struct in_device *in_dev; | ||
147 | |||
148 | rcu_read_lock(); | ||
149 | in_dev = dev->ip_ptr; | ||
150 | if (in_dev) | ||
151 | atomic_inc(&in_dev->refcnt); | ||
152 | rcu_read_unlock(); | ||
153 | return in_dev; | ||
154 | } | ||
155 | |||
156 | static __inline__ struct in_device * | ||
157 | __in_dev_get(const struct net_device *dev) | ||
158 | { | ||
159 | return (struct in_device*)dev->ip_ptr; | ||
160 | } | ||
161 | |||
162 | extern void in_dev_finish_destroy(struct in_device *idev); | ||
163 | |||
164 | static inline void in_dev_put(struct in_device *idev) | ||
165 | { | ||
166 | if (atomic_dec_and_test(&idev->refcnt)) | ||
167 | in_dev_finish_destroy(idev); | ||
168 | } | ||
169 | |||
170 | #define __in_dev_put(idev) atomic_dec(&(idev)->refcnt) | ||
171 | #define in_dev_hold(idev) atomic_inc(&(idev)->refcnt) | ||
172 | |||
173 | #endif /* __KERNEL__ */ | ||
174 | |||
175 | static __inline__ __u32 inet_make_mask(int logmask) | ||
176 | { | ||
177 | if (logmask) | ||
178 | return htonl(~((1<<(32-logmask))-1)); | ||
179 | return 0; | ||
180 | } | ||
181 | |||
182 | static __inline__ int inet_mask_len(__u32 mask) | ||
183 | { | ||
184 | if (!(mask = ntohl(mask))) | ||
185 | return 0; | ||
186 | return 32 - ffz(~mask); | ||
187 | } | ||
188 | |||
189 | |||
190 | #endif /* _LINUX_INETDEVICE_H */ | ||