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authorIngo Molnar <mingo@elte.hu>2009-03-27 23:21:18 -0400
committerIngo Molnar <mingo@elte.hu>2009-03-27 23:26:01 -0400
commit82268da1b130f763d22d04f7d016bbf6fc8815c2 (patch)
tree9803f361556d10708313e980428e63a18162e667 /net
parent6e15cf04860074ad032e88c306bea656bbdd0f22 (diff)
parent5d80f8e5a9dc9c9a94d4aeaa567e219a808b8a4a (diff)
Merge branch 'linus' into percpu-cpumask-x86-for-linus-2
Conflicts: arch/sparc/kernel/time_64.c drivers/gpu/drm/drm_proc.c Manual merge to resolve build warning due to phys_addr_t type change on x86: drivers/gpu/drm/drm_info.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net')
-rw-r--r--net/appletalk/ddp.c6
-rw-r--r--net/ax25/af_ax25.c12
-rw-r--r--net/core/dev.c9
-rw-r--r--net/ipv4/netfilter/arp_tables.c18
-rw-r--r--net/ipv4/netfilter/ip_tables.c27
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c6
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c63
-rw-r--r--net/ipv4/netfilter/nf_conntrack_proto_icmp.c6
-rw-r--r--net/ipv4/netfilter/nf_nat_core.c2
-rw-r--r--net/ipv6/ip6_input.c4
-rw-r--r--net/ipv6/netfilter/ip6_tables.c27
-rw-r--r--net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c6
-rw-r--r--net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c6
-rw-r--r--net/mac80211/agg-rx.c8
-rw-r--r--net/mac80211/agg-tx.c232
-rw-r--r--net/mac80211/cfg.c245
-rw-r--r--net/mac80211/debugfs.c24
-rw-r--r--net/mac80211/ibss.c3
-rw-r--r--net/mac80211/ieee80211_i.h78
-rw-r--r--net/mac80211/iface.c14
-rw-r--r--net/mac80211/main.c25
-rw-r--r--net/mac80211/mlme.c259
-rw-r--r--net/mac80211/pm.c78
-rw-r--r--net/mac80211/rate.c6
-rw-r--r--net/mac80211/rate.h4
-rw-r--r--net/mac80211/rx.c29
-rw-r--r--net/mac80211/scan.c77
-rw-r--r--net/mac80211/sta_info.c17
-rw-r--r--net/mac80211/sta_info.h7
-rw-r--r--net/mac80211/tx.c579
-rw-r--r--net/mac80211/util.c126
-rw-r--r--net/mac80211/wep.c21
-rw-r--r--net/mac80211/wext.c33
-rw-r--r--net/mac80211/wpa.c28
-rw-r--r--net/netfilter/Kconfig2
-rw-r--r--net/netfilter/nf_conntrack_core.c129
-rw-r--r--net/netfilter/nf_conntrack_expect.c2
-rw-r--r--net/netfilter/nf_conntrack_helper.c8
-rw-r--r--net/netfilter/nf_conntrack_netlink.c94
-rw-r--r--net/netfilter/nf_conntrack_proto.c16
-rw-r--r--net/netfilter/nf_conntrack_proto_dccp.c9
-rw-r--r--net/netfilter/nf_conntrack_proto_gre.c1
-rw-r--r--net/netfilter/nf_conntrack_proto_sctp.c10
-rw-r--r--net/netfilter/nf_conntrack_proto_tcp.c15
-rw-r--r--net/netfilter/nf_conntrack_proto_udp.c2
-rw-r--r--net/netfilter/nf_conntrack_proto_udplite.c1
-rw-r--r--net/netfilter/nf_conntrack_standalone.c57
-rw-r--r--net/netfilter/xt_connlimit.c6
-rw-r--r--net/netfilter/xt_physdev.c21
-rw-r--r--net/netrom/af_netrom.c17
-rw-r--r--net/rose/af_rose.c4
-rw-r--r--net/socket.c2
-rw-r--r--net/sunrpc/rpc_pipe.c2
-rw-r--r--net/wireless/Kconfig50
-rw-r--r--net/wireless/Makefile3
-rw-r--r--net/wireless/core.c30
-rw-r--r--net/wireless/core.h5
-rw-r--r--net/wireless/mlme.c46
-rw-r--r--net/wireless/nl80211.c824
-rw-r--r--net/wireless/nl80211.h38
-rw-r--r--net/wireless/reg.c65
-rw-r--r--net/wireless/scan.c27
-rw-r--r--net/wireless/wext-compat.c11
-rw-r--r--net/x25/af_x25.c6
-rw-r--r--net/xfrm/xfrm_state.c2
65 files changed, 2248 insertions, 1342 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 3e0671df3a3f..d6a9243641af 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1571,14 +1571,10 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
1571 usat->sat_family != AF_APPLETALK) 1571 usat->sat_family != AF_APPLETALK)
1572 return -EINVAL; 1572 return -EINVAL;
1573 1573
1574 /* netatalk doesn't implement this check */ 1574 /* netatalk didn't implement this check */
1575 if (usat->sat_addr.s_node == ATADDR_BCAST && 1575 if (usat->sat_addr.s_node == ATADDR_BCAST &&
1576 !sock_flag(sk, SOCK_BROADCAST)) { 1576 !sock_flag(sk, SOCK_BROADCAST)) {
1577 printk(KERN_INFO "SO_BROADCAST: Fix your netatalk as "
1578 "it will break before 2.2\n");
1579#if 0
1580 return -EPERM; 1577 return -EPERM;
1581#endif
1582 } 1578 }
1583 } else { 1579 } else {
1584 if (sk->sk_state != TCP_ESTABLISHED) 1580 if (sk->sk_state != TCP_ESTABLISHED)
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 7da5ebb84e97..fd9d06f291dc 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1435,11 +1435,6 @@ static int ax25_sendmsg(struct kiocb *iocb, struct socket *sock,
1435 size_t size; 1435 size_t size;
1436 int lv, err, addr_len = msg->msg_namelen; 1436 int lv, err, addr_len = msg->msg_namelen;
1437 1437
1438 /* AX.25 empty data frame has no meaning : don't send */
1439 if (len == 0) {
1440 return (0);
1441 }
1442
1443 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT)) 1438 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT))
1444 return -EINVAL; 1439 return -EINVAL;
1445 1440
@@ -1639,13 +1634,6 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock,
1639 skb_reset_transport_header(skb); 1634 skb_reset_transport_header(skb);
1640 copied = skb->len; 1635 copied = skb->len;
1641 1636
1642 /* AX.25 empty data frame has no meaning : ignore it */
1643 if (copied == 0) {
1644 err = copied;
1645 skb_free_datagram(sk, skb);
1646 goto out;
1647 }
1648
1649 if (copied > size) { 1637 if (copied > size) {
1650 copied = size; 1638 copied = size;
1651 msg->msg_flags |= MSG_TRUNC; 1639 msg->msg_flags |= MSG_TRUNC;
diff --git a/net/core/dev.c b/net/core/dev.c
index 052dd478d3e1..63ec4bf89b29 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2627,18 +2627,15 @@ static int process_backlog(struct napi_struct *napi, int quota)
2627 local_irq_disable(); 2627 local_irq_disable();
2628 skb = __skb_dequeue(&queue->input_pkt_queue); 2628 skb = __skb_dequeue(&queue->input_pkt_queue);
2629 if (!skb) { 2629 if (!skb) {
2630 __napi_complete(napi);
2630 local_irq_enable(); 2631 local_irq_enable();
2631 napi_complete(napi); 2632 break;
2632 goto out;
2633 } 2633 }
2634 local_irq_enable(); 2634 local_irq_enable();
2635 2635
2636 napi_gro_receive(napi, skb); 2636 netif_receive_skb(skb);
2637 } while (++work < quota && jiffies == start_time); 2637 } while (++work < quota && jiffies == start_time);
2638 2638
2639 napi_gro_flush(napi);
2640
2641out:
2642 return work; 2639 return work;
2643} 2640}
2644 2641
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 84b9c179df51..35c5f6a5cb7c 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -81,19 +81,7 @@ static inline int arp_devaddr_compare(const struct arpt_devaddr_info *ap,
81static unsigned long ifname_compare(const char *_a, const char *_b, const char *_mask) 81static unsigned long ifname_compare(const char *_a, const char *_b, const char *_mask)
82{ 82{
83#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 83#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
84 const unsigned long *a = (const unsigned long *)_a; 84 unsigned long ret = ifname_compare_aligned(_a, _b, _mask);
85 const unsigned long *b = (const unsigned long *)_b;
86 const unsigned long *mask = (const unsigned long *)_mask;
87 unsigned long ret;
88
89 ret = (a[0] ^ b[0]) & mask[0];
90 if (IFNAMSIZ > sizeof(unsigned long))
91 ret |= (a[1] ^ b[1]) & mask[1];
92 if (IFNAMSIZ > 2 * sizeof(unsigned long))
93 ret |= (a[2] ^ b[2]) & mask[2];
94 if (IFNAMSIZ > 3 * sizeof(unsigned long))
95 ret |= (a[3] ^ b[3]) & mask[3];
96 BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
97#else 85#else
98 unsigned long ret = 0; 86 unsigned long ret = 0;
99 const u16 *a = (const u16 *)_a; 87 const u16 *a = (const u16 *)_a;
@@ -404,7 +392,9 @@ static int mark_source_chains(struct xt_table_info *newinfo,
404 && unconditional(&e->arp)) || visited) { 392 && unconditional(&e->arp)) || visited) {
405 unsigned int oldpos, size; 393 unsigned int oldpos, size;
406 394
407 if (t->verdict < -NF_MAX_VERDICT - 1) { 395 if ((strcmp(t->target.u.user.name,
396 ARPT_STANDARD_TARGET) == 0) &&
397 t->verdict < -NF_MAX_VERDICT - 1) {
408 duprintf("mark_source_chains: bad " 398 duprintf("mark_source_chains: bad "
409 "negative verdict (%i)\n", 399 "negative verdict (%i)\n",
410 t->verdict); 400 t->verdict);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index e5294aec967d..82ee7c9049ff 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -74,25 +74,6 @@ do { \
74 74
75 Hence the start of any table is given by get_table() below. */ 75 Hence the start of any table is given by get_table() below. */
76 76
77static unsigned long ifname_compare(const char *_a, const char *_b,
78 const unsigned char *_mask)
79{
80 const unsigned long *a = (const unsigned long *)_a;
81 const unsigned long *b = (const unsigned long *)_b;
82 const unsigned long *mask = (const unsigned long *)_mask;
83 unsigned long ret;
84
85 ret = (a[0] ^ b[0]) & mask[0];
86 if (IFNAMSIZ > sizeof(unsigned long))
87 ret |= (a[1] ^ b[1]) & mask[1];
88 if (IFNAMSIZ > 2 * sizeof(unsigned long))
89 ret |= (a[2] ^ b[2]) & mask[2];
90 if (IFNAMSIZ > 3 * sizeof(unsigned long))
91 ret |= (a[3] ^ b[3]) & mask[3];
92 BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
93 return ret;
94}
95
96/* Returns whether matches rule or not. */ 77/* Returns whether matches rule or not. */
97/* Performance critical - called for every packet */ 78/* Performance critical - called for every packet */
98static inline bool 79static inline bool
@@ -121,7 +102,7 @@ ip_packet_match(const struct iphdr *ip,
121 return false; 102 return false;
122 } 103 }
123 104
124 ret = ifname_compare(indev, ipinfo->iniface, ipinfo->iniface_mask); 105 ret = ifname_compare_aligned(indev, ipinfo->iniface, ipinfo->iniface_mask);
125 106
126 if (FWINV(ret != 0, IPT_INV_VIA_IN)) { 107 if (FWINV(ret != 0, IPT_INV_VIA_IN)) {
127 dprintf("VIA in mismatch (%s vs %s).%s\n", 108 dprintf("VIA in mismatch (%s vs %s).%s\n",
@@ -130,7 +111,7 @@ ip_packet_match(const struct iphdr *ip,
130 return false; 111 return false;
131 } 112 }
132 113
133 ret = ifname_compare(outdev, ipinfo->outiface, ipinfo->outiface_mask); 114 ret = ifname_compare_aligned(outdev, ipinfo->outiface, ipinfo->outiface_mask);
134 115
135 if (FWINV(ret != 0, IPT_INV_VIA_OUT)) { 116 if (FWINV(ret != 0, IPT_INV_VIA_OUT)) {
136 dprintf("VIA out mismatch (%s vs %s).%s\n", 117 dprintf("VIA out mismatch (%s vs %s).%s\n",
@@ -507,7 +488,9 @@ mark_source_chains(struct xt_table_info *newinfo,
507 && unconditional(&e->ip)) || visited) { 488 && unconditional(&e->ip)) || visited) {
508 unsigned int oldpos, size; 489 unsigned int oldpos, size;
509 490
510 if (t->verdict < -NF_MAX_VERDICT - 1) { 491 if ((strcmp(t->target.u.user.name,
492 IPT_STANDARD_TARGET) == 0) &&
493 t->verdict < -NF_MAX_VERDICT - 1) {
511 duprintf("mark_source_chains: bad " 494 duprintf("mark_source_chains: bad "
512 "negative verdict (%i)\n", 495 "negative verdict (%i)\n",
513 t->verdict); 496 t->verdict);
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 8b681f24e271..7d2ead7228ac 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -328,6 +328,11 @@ static int ipv4_nlattr_to_tuple(struct nlattr *tb[],
328 328
329 return 0; 329 return 0;
330} 330}
331
332static int ipv4_nlattr_tuple_size(void)
333{
334 return nla_policy_len(ipv4_nla_policy, CTA_IP_MAX + 1);
335}
331#endif 336#endif
332 337
333static struct nf_sockopt_ops so_getorigdst = { 338static struct nf_sockopt_ops so_getorigdst = {
@@ -347,6 +352,7 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4 __read_mostly = {
347 .get_l4proto = ipv4_get_l4proto, 352 .get_l4proto = ipv4_get_l4proto,
348#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 353#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
349 .tuple_to_nlattr = ipv4_tuple_to_nlattr, 354 .tuple_to_nlattr = ipv4_tuple_to_nlattr,
355 .nlattr_tuple_size = ipv4_nlattr_tuple_size,
350 .nlattr_to_tuple = ipv4_nlattr_to_tuple, 356 .nlattr_to_tuple = ipv4_nlattr_to_tuple,
351 .nla_policy = ipv4_nla_policy, 357 .nla_policy = ipv4_nla_policy,
352#endif 358#endif
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
index 6ba5c557690c..8668a3defda6 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
@@ -25,40 +25,42 @@ struct ct_iter_state {
25 unsigned int bucket; 25 unsigned int bucket;
26}; 26};
27 27
28static struct hlist_node *ct_get_first(struct seq_file *seq) 28static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
29{ 29{
30 struct net *net = seq_file_net(seq); 30 struct net *net = seq_file_net(seq);
31 struct ct_iter_state *st = seq->private; 31 struct ct_iter_state *st = seq->private;
32 struct hlist_node *n; 32 struct hlist_nulls_node *n;
33 33
34 for (st->bucket = 0; 34 for (st->bucket = 0;
35 st->bucket < nf_conntrack_htable_size; 35 st->bucket < nf_conntrack_htable_size;
36 st->bucket++) { 36 st->bucket++) {
37 n = rcu_dereference(net->ct.hash[st->bucket].first); 37 n = rcu_dereference(net->ct.hash[st->bucket].first);
38 if (n) 38 if (!is_a_nulls(n))
39 return n; 39 return n;
40 } 40 }
41 return NULL; 41 return NULL;
42} 42}
43 43
44static struct hlist_node *ct_get_next(struct seq_file *seq, 44static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
45 struct hlist_node *head) 45 struct hlist_nulls_node *head)
46{ 46{
47 struct net *net = seq_file_net(seq); 47 struct net *net = seq_file_net(seq);
48 struct ct_iter_state *st = seq->private; 48 struct ct_iter_state *st = seq->private;
49 49
50 head = rcu_dereference(head->next); 50 head = rcu_dereference(head->next);
51 while (head == NULL) { 51 while (is_a_nulls(head)) {
52 if (++st->bucket >= nf_conntrack_htable_size) 52 if (likely(get_nulls_value(head) == st->bucket)) {
53 return NULL; 53 if (++st->bucket >= nf_conntrack_htable_size)
54 return NULL;
55 }
54 head = rcu_dereference(net->ct.hash[st->bucket].first); 56 head = rcu_dereference(net->ct.hash[st->bucket].first);
55 } 57 }
56 return head; 58 return head;
57} 59}
58 60
59static struct hlist_node *ct_get_idx(struct seq_file *seq, loff_t pos) 61static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
60{ 62{
61 struct hlist_node *head = ct_get_first(seq); 63 struct hlist_nulls_node *head = ct_get_first(seq);
62 64
63 if (head) 65 if (head)
64 while (pos && (head = ct_get_next(seq, head))) 66 while (pos && (head = ct_get_next(seq, head)))
@@ -87,69 +89,76 @@ static void ct_seq_stop(struct seq_file *s, void *v)
87 89
88static int ct_seq_show(struct seq_file *s, void *v) 90static int ct_seq_show(struct seq_file *s, void *v)
89{ 91{
90 const struct nf_conntrack_tuple_hash *hash = v; 92 struct nf_conntrack_tuple_hash *hash = v;
91 const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash); 93 struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
92 const struct nf_conntrack_l3proto *l3proto; 94 const struct nf_conntrack_l3proto *l3proto;
93 const struct nf_conntrack_l4proto *l4proto; 95 const struct nf_conntrack_l4proto *l4proto;
96 int ret = 0;
94 97
95 NF_CT_ASSERT(ct); 98 NF_CT_ASSERT(ct);
99 if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
100 return 0;
101
96 102
97 /* we only want to print DIR_ORIGINAL */ 103 /* we only want to print DIR_ORIGINAL */
98 if (NF_CT_DIRECTION(hash)) 104 if (NF_CT_DIRECTION(hash))
99 return 0; 105 goto release;
100 if (nf_ct_l3num(ct) != AF_INET) 106 if (nf_ct_l3num(ct) != AF_INET)
101 return 0; 107 goto release;
102 108
103 l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct)); 109 l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
104 NF_CT_ASSERT(l3proto); 110 NF_CT_ASSERT(l3proto);
105 l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct)); 111 l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
106 NF_CT_ASSERT(l4proto); 112 NF_CT_ASSERT(l4proto);
107 113
114 ret = -ENOSPC;
108 if (seq_printf(s, "%-8s %u %ld ", 115 if (seq_printf(s, "%-8s %u %ld ",
109 l4proto->name, nf_ct_protonum(ct), 116 l4proto->name, nf_ct_protonum(ct),
110 timer_pending(&ct->timeout) 117 timer_pending(&ct->timeout)
111 ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0) 118 ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
112 return -ENOSPC; 119 goto release;
113 120
114 if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct)) 121 if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct))
115 return -ENOSPC; 122 goto release;
116 123
117 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, 124 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
118 l3proto, l4proto)) 125 l3proto, l4proto))
119 return -ENOSPC; 126 goto release;
120 127
121 if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL)) 128 if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
122 return -ENOSPC; 129 goto release;
123 130
124 if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status))) 131 if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
125 if (seq_printf(s, "[UNREPLIED] ")) 132 if (seq_printf(s, "[UNREPLIED] "))
126 return -ENOSPC; 133 goto release;
127 134
128 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, 135 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
129 l3proto, l4proto)) 136 l3proto, l4proto))
130 return -ENOSPC; 137 goto release;
131 138
132 if (seq_print_acct(s, ct, IP_CT_DIR_REPLY)) 139 if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
133 return -ENOSPC; 140 goto release;
134 141
135 if (test_bit(IPS_ASSURED_BIT, &ct->status)) 142 if (test_bit(IPS_ASSURED_BIT, &ct->status))
136 if (seq_printf(s, "[ASSURED] ")) 143 if (seq_printf(s, "[ASSURED] "))
137 return -ENOSPC; 144 goto release;
138 145
139#ifdef CONFIG_NF_CONNTRACK_MARK 146#ifdef CONFIG_NF_CONNTRACK_MARK
140 if (seq_printf(s, "mark=%u ", ct->mark)) 147 if (seq_printf(s, "mark=%u ", ct->mark))
141 return -ENOSPC; 148 goto release;
142#endif 149#endif
143 150
144#ifdef CONFIG_NF_CONNTRACK_SECMARK 151#ifdef CONFIG_NF_CONNTRACK_SECMARK
145 if (seq_printf(s, "secmark=%u ", ct->secmark)) 152 if (seq_printf(s, "secmark=%u ", ct->secmark))
146 return -ENOSPC; 153 goto release;
147#endif 154#endif
148 155
149 if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use))) 156 if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
150 return -ENOSPC; 157 goto release;
151 158 ret = 0;
152 return 0; 159release:
160 nf_ct_put(ct);
161 return ret;
153} 162}
154 163
155static const struct seq_operations ct_seq_ops = { 164static const struct seq_operations ct_seq_ops = {
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 2a8bee26f43d..23b2c2ee869a 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -262,6 +262,11 @@ static int icmp_nlattr_to_tuple(struct nlattr *tb[],
262 262
263 return 0; 263 return 0;
264} 264}
265
266static int icmp_nlattr_tuple_size(void)
267{
268 return nla_policy_len(icmp_nla_policy, CTA_PROTO_MAX + 1);
269}
265#endif 270#endif
266 271
267#ifdef CONFIG_SYSCTL 272#ifdef CONFIG_SYSCTL
@@ -309,6 +314,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
309 .me = NULL, 314 .me = NULL,
310#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 315#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
311 .tuple_to_nlattr = icmp_tuple_to_nlattr, 316 .tuple_to_nlattr = icmp_tuple_to_nlattr,
317 .nlattr_tuple_size = icmp_nlattr_tuple_size,
312 .nlattr_to_tuple = icmp_nlattr_to_tuple, 318 .nlattr_to_tuple = icmp_nlattr_to_tuple,
313 .nla_policy = icmp_nla_policy, 319 .nla_policy = icmp_nla_policy,
314#endif 320#endif
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index a65cf692359f..fe65187810f0 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -679,7 +679,7 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
679static int __net_init nf_nat_net_init(struct net *net) 679static int __net_init nf_nat_net_init(struct net *net)
680{ 680{
681 net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size, 681 net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size,
682 &net->ipv4.nat_vmalloced); 682 &net->ipv4.nat_vmalloced, 0);
683 if (!net->ipv4.nat_bysource) 683 if (!net->ipv4.nat_bysource)
684 return -ENOMEM; 684 return -ENOMEM;
685 return 0; 685 return 0;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index f171e8dbac91..8f04bd9da274 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -75,8 +75,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
75 if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL || 75 if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL ||
76 !idev || unlikely(idev->cnf.disable_ipv6)) { 76 !idev || unlikely(idev->cnf.disable_ipv6)) {
77 IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDISCARDS); 77 IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDISCARDS);
78 rcu_read_unlock(); 78 goto drop;
79 goto out;
80 } 79 }
81 80
82 memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm)); 81 memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm));
@@ -147,7 +146,6 @@ err:
147drop: 146drop:
148 rcu_read_unlock(); 147 rcu_read_unlock();
149 kfree_skb(skb); 148 kfree_skb(skb);
150out:
151 return 0; 149 return 0;
152} 150}
153 151
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 34af7bb8df5f..e89cfa3a8f25 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -89,25 +89,6 @@ ip6t_ext_hdr(u8 nexthdr)
89 (nexthdr == IPPROTO_DSTOPTS) ); 89 (nexthdr == IPPROTO_DSTOPTS) );
90} 90}
91 91
92static unsigned long ifname_compare(const char *_a, const char *_b,
93 const unsigned char *_mask)
94{
95 const unsigned long *a = (const unsigned long *)_a;
96 const unsigned long *b = (const unsigned long *)_b;
97 const unsigned long *mask = (const unsigned long *)_mask;
98 unsigned long ret;
99
100 ret = (a[0] ^ b[0]) & mask[0];
101 if (IFNAMSIZ > sizeof(unsigned long))
102 ret |= (a[1] ^ b[1]) & mask[1];
103 if (IFNAMSIZ > 2 * sizeof(unsigned long))
104 ret |= (a[2] ^ b[2]) & mask[2];
105 if (IFNAMSIZ > 3 * sizeof(unsigned long))
106 ret |= (a[3] ^ b[3]) & mask[3];
107 BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
108 return ret;
109}
110
111/* Returns whether matches rule or not. */ 92/* Returns whether matches rule or not. */
112/* Performance critical - called for every packet */ 93/* Performance critical - called for every packet */
113static inline bool 94static inline bool
@@ -138,7 +119,7 @@ ip6_packet_match(const struct sk_buff *skb,
138 return false; 119 return false;
139 } 120 }
140 121
141 ret = ifname_compare(indev, ip6info->iniface, ip6info->iniface_mask); 122 ret = ifname_compare_aligned(indev, ip6info->iniface, ip6info->iniface_mask);
142 123
143 if (FWINV(ret != 0, IP6T_INV_VIA_IN)) { 124 if (FWINV(ret != 0, IP6T_INV_VIA_IN)) {
144 dprintf("VIA in mismatch (%s vs %s).%s\n", 125 dprintf("VIA in mismatch (%s vs %s).%s\n",
@@ -147,7 +128,7 @@ ip6_packet_match(const struct sk_buff *skb,
147 return false; 128 return false;
148 } 129 }
149 130
150 ret = ifname_compare(outdev, ip6info->outiface, ip6info->outiface_mask); 131 ret = ifname_compare_aligned(outdev, ip6info->outiface, ip6info->outiface_mask);
151 132
152 if (FWINV(ret != 0, IP6T_INV_VIA_OUT)) { 133 if (FWINV(ret != 0, IP6T_INV_VIA_OUT)) {
153 dprintf("VIA out mismatch (%s vs %s).%s\n", 134 dprintf("VIA out mismatch (%s vs %s).%s\n",
@@ -536,7 +517,9 @@ mark_source_chains(struct xt_table_info *newinfo,
536 && unconditional(&e->ipv6)) || visited) { 517 && unconditional(&e->ipv6)) || visited) {
537 unsigned int oldpos, size; 518 unsigned int oldpos, size;
538 519
539 if (t->verdict < -NF_MAX_VERDICT - 1) { 520 if ((strcmp(t->target.u.user.name,
521 IP6T_STANDARD_TARGET) == 0) &&
522 t->verdict < -NF_MAX_VERDICT - 1) {
540 duprintf("mark_source_chains: bad " 523 duprintf("mark_source_chains: bad "
541 "negative verdict (%i)\n", 524 "negative verdict (%i)\n",
542 t->verdict); 525 t->verdict);
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index e6852f617217..2a15c2d66c69 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -342,6 +342,11 @@ static int ipv6_nlattr_to_tuple(struct nlattr *tb[],
342 342
343 return 0; 343 return 0;
344} 344}
345
346static int ipv6_nlattr_tuple_size(void)
347{
348 return nla_policy_len(ipv6_nla_policy, CTA_IP_MAX + 1);
349}
345#endif 350#endif
346 351
347struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = { 352struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = {
@@ -353,6 +358,7 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = {
353 .get_l4proto = ipv6_get_l4proto, 358 .get_l4proto = ipv6_get_l4proto,
354#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 359#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
355 .tuple_to_nlattr = ipv6_tuple_to_nlattr, 360 .tuple_to_nlattr = ipv6_tuple_to_nlattr,
361 .nlattr_tuple_size = ipv6_nlattr_tuple_size,
356 .nlattr_to_tuple = ipv6_nlattr_to_tuple, 362 .nlattr_to_tuple = ipv6_nlattr_to_tuple,
357 .nla_policy = ipv6_nla_policy, 363 .nla_policy = ipv6_nla_policy,
358#endif 364#endif
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 41b8a956e1be..9903227bf37c 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -269,6 +269,11 @@ static int icmpv6_nlattr_to_tuple(struct nlattr *tb[],
269 269
270 return 0; 270 return 0;
271} 271}
272
273static int icmpv6_nlattr_tuple_size(void)
274{
275 return nla_policy_len(icmpv6_nla_policy, CTA_PROTO_MAX + 1);
276}
272#endif 277#endif
273 278
274#ifdef CONFIG_SYSCTL 279#ifdef CONFIG_SYSCTL
@@ -300,6 +305,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
300 .error = icmpv6_error, 305 .error = icmpv6_error,
301#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 306#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
302 .tuple_to_nlattr = icmpv6_tuple_to_nlattr, 307 .tuple_to_nlattr = icmpv6_tuple_to_nlattr,
308 .nlattr_tuple_size = icmpv6_nlattr_tuple_size,
303 .nlattr_to_tuple = icmpv6_nlattr_to_tuple, 309 .nlattr_to_tuple = icmpv6_nlattr_to_tuple,
304 .nla_policy = icmpv6_nla_policy, 310 .nla_policy = icmpv6_nla_policy,
305#endif 311#endif
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index a95affc94629..07656d830bc4 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -197,6 +197,14 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
197 197
198 status = WLAN_STATUS_REQUEST_DECLINED; 198 status = WLAN_STATUS_REQUEST_DECLINED;
199 199
200 if (test_sta_flags(sta, WLAN_STA_SUSPEND)) {
201#ifdef CONFIG_MAC80211_HT_DEBUG
202 printk(KERN_DEBUG "Suspend in progress. "
203 "Denying ADDBA request\n");
204#endif
205 goto end_no_lock;
206 }
207
200 /* sanity check for incoming parameters: 208 /* sanity check for incoming parameters:
201 * check if configuration can support the BA policy 209 * check if configuration can support the BA policy
202 * and if buffer size does not exceeds max value */ 210 * and if buffer size does not exceeds max value */
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 1df116d4d6e7..947aaaad35d2 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -131,24 +131,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
131 131
132 state = &sta->ampdu_mlme.tid_state_tx[tid]; 132 state = &sta->ampdu_mlme.tid_state_tx[tid];
133 133
134 if (local->hw.ampdu_queues) {
135 if (initiator) {
136 /*
137 * Stop the AC queue to avoid issues where we send
138 * unaggregated frames already before the delba.
139 */
140 ieee80211_stop_queue_by_reason(&local->hw,
141 local->hw.queues + sta->tid_to_tx_q[tid],
142 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
143 }
144
145 /*
146 * Pretend the driver woke the queue, just in case
147 * it disabled it before the session was stopped.
148 */
149 ieee80211_wake_queue(
150 &local->hw, local->hw.queues + sta->tid_to_tx_q[tid]);
151 }
152 *state = HT_AGG_STATE_REQ_STOP_BA_MSK | 134 *state = HT_AGG_STATE_REQ_STOP_BA_MSK |
153 (initiator << HT_AGG_STATE_INITIATOR_SHIFT); 135 (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
154 136
@@ -158,6 +140,10 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
158 /* HW shall not deny going back to legacy */ 140 /* HW shall not deny going back to legacy */
159 if (WARN_ON(ret)) { 141 if (WARN_ON(ret)) {
160 *state = HT_AGG_STATE_OPERATIONAL; 142 *state = HT_AGG_STATE_OPERATIONAL;
143 /*
144 * We may have pending packets get stuck in this case...
145 * Not bothering with a workaround for now.
146 */
161 } 147 }
162 148
163 return ret; 149 return ret;
@@ -212,7 +198,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
212 struct sta_info *sta; 198 struct sta_info *sta;
213 struct ieee80211_sub_if_data *sdata; 199 struct ieee80211_sub_if_data *sdata;
214 u8 *state; 200 u8 *state;
215 int i, qn = -1, ret = 0; 201 int ret = 0;
216 u16 start_seq_num; 202 u16 start_seq_num;
217 203
218 if (WARN_ON(!local->ops->ampdu_action)) 204 if (WARN_ON(!local->ops->ampdu_action))
@@ -226,13 +212,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
226 ra, tid); 212 ra, tid);
227#endif /* CONFIG_MAC80211_HT_DEBUG */ 213#endif /* CONFIG_MAC80211_HT_DEBUG */
228 214
229 if (hw->ampdu_queues && ieee80211_ac_from_tid(tid) == 0) {
230#ifdef CONFIG_MAC80211_HT_DEBUG
231 printk(KERN_DEBUG "rejecting on voice AC\n");
232#endif
233 return -EINVAL;
234 }
235
236 rcu_read_lock(); 215 rcu_read_lock();
237 216
238 sta = sta_info_get(local, ra); 217 sta = sta_info_get(local, ra);
@@ -257,7 +236,17 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
257 goto unlock; 236 goto unlock;
258 } 237 }
259 238
239 if (test_sta_flags(sta, WLAN_STA_SUSPEND)) {
240#ifdef CONFIG_MAC80211_HT_DEBUG
241 printk(KERN_DEBUG "Suspend in progress. "
242 "Denying BA session request\n");
243#endif
244 ret = -EINVAL;
245 goto unlock;
246 }
247
260 spin_lock_bh(&sta->lock); 248 spin_lock_bh(&sta->lock);
249 spin_lock(&local->ampdu_lock);
261 250
262 sdata = sta->sdata; 251 sdata = sta->sdata;
263 252
@@ -278,41 +267,16 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
278 goto err_unlock_sta; 267 goto err_unlock_sta;
279 } 268 }
280 269
281 if (hw->ampdu_queues) { 270 /*
282 spin_lock(&local->queue_stop_reason_lock); 271 * While we're asking the driver about the aggregation,
283 /* reserve a new queue for this session */ 272 * stop the AC queue so that we don't have to worry
284 for (i = 0; i < local->hw.ampdu_queues; i++) { 273 * about frames that came in while we were doing that,
285 if (local->ampdu_ac_queue[i] < 0) { 274 * which would require us to put them to the AC pending
286 qn = i; 275 * afterwards which just makes the code more complex.
287 local->ampdu_ac_queue[qn] = 276 */
288 ieee80211_ac_from_tid(tid); 277 ieee80211_stop_queue_by_reason(
289 break; 278 &local->hw, ieee80211_ac_from_tid(tid),
290 } 279 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
291 }
292 spin_unlock(&local->queue_stop_reason_lock);
293
294 if (qn < 0) {
295#ifdef CONFIG_MAC80211_HT_DEBUG
296 printk(KERN_DEBUG "BA request denied - "
297 "queue unavailable for tid %d\n", tid);
298#endif /* CONFIG_MAC80211_HT_DEBUG */
299 ret = -ENOSPC;
300 goto err_unlock_sta;
301 }
302
303 /*
304 * If we successfully allocate the session, we can't have
305 * anything going on on the queue this TID maps into, so
306 * stop it for now. This is a "virtual" stop using the same
307 * mechanism that drivers will use.
308 *
309 * XXX: queue up frames for this session in the sta_info
310 * struct instead to avoid hitting all other STAs.
311 */
312 ieee80211_stop_queue_by_reason(
313 &local->hw, hw->queues + qn,
314 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
315 }
316 280
317 /* prepare A-MPDU MLME for Tx aggregation */ 281 /* prepare A-MPDU MLME for Tx aggregation */
318 sta->ampdu_mlme.tid_tx[tid] = 282 sta->ampdu_mlme.tid_tx[tid] =
@@ -324,9 +288,11 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
324 tid); 288 tid);
325#endif 289#endif
326 ret = -ENOMEM; 290 ret = -ENOMEM;
327 goto err_return_queue; 291 goto err_wake_queue;
328 } 292 }
329 293
294 skb_queue_head_init(&sta->ampdu_mlme.tid_tx[tid]->pending);
295
330 /* Tx timer */ 296 /* Tx timer */
331 sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function = 297 sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
332 sta_addba_resp_timer_expired; 298 sta_addba_resp_timer_expired;
@@ -351,8 +317,13 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
351 *state = HT_AGG_STATE_IDLE; 317 *state = HT_AGG_STATE_IDLE;
352 goto err_free; 318 goto err_free;
353 } 319 }
354 sta->tid_to_tx_q[tid] = qn;
355 320
321 /* Driver vetoed or OKed, but we can take packets again now */
322 ieee80211_wake_queue_by_reason(
323 &local->hw, ieee80211_ac_from_tid(tid),
324 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
325
326 spin_unlock(&local->ampdu_lock);
356 spin_unlock_bh(&sta->lock); 327 spin_unlock_bh(&sta->lock);
357 328
358 /* send an addBA request */ 329 /* send an addBA request */
@@ -377,17 +348,12 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
377 err_free: 348 err_free:
378 kfree(sta->ampdu_mlme.tid_tx[tid]); 349 kfree(sta->ampdu_mlme.tid_tx[tid]);
379 sta->ampdu_mlme.tid_tx[tid] = NULL; 350 sta->ampdu_mlme.tid_tx[tid] = NULL;
380 err_return_queue: 351 err_wake_queue:
381 if (qn >= 0) { 352 ieee80211_wake_queue_by_reason(
382 /* We failed, so start queue again right away. */ 353 &local->hw, ieee80211_ac_from_tid(tid),
383 ieee80211_wake_queue_by_reason(hw, hw->queues + qn, 354 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
384 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
385 /* give queue back to pool */
386 spin_lock(&local->queue_stop_reason_lock);
387 local->ampdu_ac_queue[qn] = -1;
388 spin_unlock(&local->queue_stop_reason_lock);
389 }
390 err_unlock_sta: 355 err_unlock_sta:
356 spin_unlock(&local->ampdu_lock);
391 spin_unlock_bh(&sta->lock); 357 spin_unlock_bh(&sta->lock);
392 unlock: 358 unlock:
393 rcu_read_unlock(); 359 rcu_read_unlock();
@@ -395,6 +361,67 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
395} 361}
396EXPORT_SYMBOL(ieee80211_start_tx_ba_session); 362EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
397 363
364/*
365 * splice packets from the STA's pending to the local pending,
366 * requires a call to ieee80211_agg_splice_finish and holding
367 * local->ampdu_lock across both calls.
368 */
369static void ieee80211_agg_splice_packets(struct ieee80211_local *local,
370 struct sta_info *sta, u16 tid)
371{
372 unsigned long flags;
373 u16 queue = ieee80211_ac_from_tid(tid);
374
375 ieee80211_stop_queue_by_reason(
376 &local->hw, queue,
377 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
378
379 if (!skb_queue_empty(&sta->ampdu_mlme.tid_tx[tid]->pending)) {
380 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
381 /* mark queue as pending, it is stopped already */
382 __set_bit(IEEE80211_QUEUE_STOP_REASON_PENDING,
383 &local->queue_stop_reasons[queue]);
384 /* copy over remaining packets */
385 skb_queue_splice_tail_init(
386 &sta->ampdu_mlme.tid_tx[tid]->pending,
387 &local->pending[queue]);
388 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
389 }
390}
391
392static void ieee80211_agg_splice_finish(struct ieee80211_local *local,
393 struct sta_info *sta, u16 tid)
394{
395 u16 queue = ieee80211_ac_from_tid(tid);
396
397 ieee80211_wake_queue_by_reason(
398 &local->hw, queue,
399 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
400}
401
402/* caller must hold sta->lock */
403static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
404 struct sta_info *sta, u16 tid)
405{
406#ifdef CONFIG_MAC80211_HT_DEBUG
407 printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
408#endif
409
410 spin_lock(&local->ampdu_lock);
411 ieee80211_agg_splice_packets(local, sta, tid);
412 /*
413 * NB: we rely on sta->lock being taken in the TX
414 * processing here when adding to the pending queue,
415 * otherwise we could only change the state of the
416 * session to OPERATIONAL _here_.
417 */
418 ieee80211_agg_splice_finish(local, sta, tid);
419 spin_unlock(&local->ampdu_lock);
420
421 local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_OPERATIONAL,
422 &sta->sta, tid, NULL);
423}
424
398void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid) 425void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
399{ 426{
400 struct ieee80211_local *local = hw_to_local(hw); 427 struct ieee80211_local *local = hw_to_local(hw);
@@ -437,20 +464,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
437 464
438 *state |= HT_ADDBA_DRV_READY_MSK; 465 *state |= HT_ADDBA_DRV_READY_MSK;
439 466
440 if (*state == HT_AGG_STATE_OPERATIONAL) { 467 if (*state == HT_AGG_STATE_OPERATIONAL)
441#ifdef CONFIG_MAC80211_HT_DEBUG 468 ieee80211_agg_tx_operational(local, sta, tid);
442 printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
443#endif
444 if (hw->ampdu_queues) {
445 /*
446 * Wake up this queue, we stopped it earlier,
447 * this will in turn wake the entire AC.
448 */
449 ieee80211_wake_queue_by_reason(hw,
450 hw->queues + sta->tid_to_tx_q[tid],
451 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
452 }
453 }
454 469
455 out: 470 out:
456 spin_unlock_bh(&sta->lock); 471 spin_unlock_bh(&sta->lock);
@@ -584,22 +599,19 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
584 WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE); 599 WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
585 600
586 spin_lock_bh(&sta->lock); 601 spin_lock_bh(&sta->lock);
602 spin_lock(&local->ampdu_lock);
587 603
588 if (*state & HT_AGG_STATE_INITIATOR_MSK && 604 ieee80211_agg_splice_packets(local, sta, tid);
589 hw->ampdu_queues) {
590 /*
591 * Wake up this queue, we stopped it earlier,
592 * this will in turn wake the entire AC.
593 */
594 ieee80211_wake_queue_by_reason(hw,
595 hw->queues + sta->tid_to_tx_q[tid],
596 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
597 }
598 605
599 *state = HT_AGG_STATE_IDLE; 606 *state = HT_AGG_STATE_IDLE;
607 /* from now on packets are no longer put onto sta->pending */
600 sta->ampdu_mlme.addba_req_num[tid] = 0; 608 sta->ampdu_mlme.addba_req_num[tid] = 0;
601 kfree(sta->ampdu_mlme.tid_tx[tid]); 609 kfree(sta->ampdu_mlme.tid_tx[tid]);
602 sta->ampdu_mlme.tid_tx[tid] = NULL; 610 sta->ampdu_mlme.tid_tx[tid] = NULL;
611
612 ieee80211_agg_splice_finish(local, sta, tid);
613
614 spin_unlock(&local->ampdu_lock);
603 spin_unlock_bh(&sta->lock); 615 spin_unlock_bh(&sta->lock);
604 616
605 rcu_read_unlock(); 617 rcu_read_unlock();
@@ -637,9 +649,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
637 struct ieee80211_mgmt *mgmt, 649 struct ieee80211_mgmt *mgmt,
638 size_t len) 650 size_t len)
639{ 651{
640 struct ieee80211_hw *hw = &local->hw; 652 u16 capab, tid;
641 u16 capab;
642 u16 tid, start_seq_num;
643 u8 *state; 653 u8 *state;
644 654
645 capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); 655 capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
@@ -673,26 +683,10 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
673 683
674 *state |= HT_ADDBA_RECEIVED_MSK; 684 *state |= HT_ADDBA_RECEIVED_MSK;
675 685
676 if (hw->ampdu_queues && *state != curstate && 686 if (*state != curstate && *state == HT_AGG_STATE_OPERATIONAL)
677 *state == HT_AGG_STATE_OPERATIONAL) { 687 ieee80211_agg_tx_operational(local, sta, tid);
678 /*
679 * Wake up this queue, we stopped it earlier,
680 * this will in turn wake the entire AC.
681 */
682 ieee80211_wake_queue_by_reason(hw,
683 hw->queues + sta->tid_to_tx_q[tid],
684 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
685 }
686 sta->ampdu_mlme.addba_req_num[tid] = 0;
687 688
688 if (local->ops->ampdu_action) { 689 sta->ampdu_mlme.addba_req_num[tid] = 0;
689 (void)local->ops->ampdu_action(hw,
690 IEEE80211_AMPDU_TX_RESUME,
691 &sta->sta, tid, &start_seq_num);
692 }
693#ifdef CONFIG_MAC80211_HT_DEBUG
694 printk(KERN_DEBUG "Resuming TX aggregation for tid %d\n", tid);
695#endif /* CONFIG_MAC80211_HT_DEBUG */
696 } else { 690 } else {
697 sta->ampdu_mlme.addba_req_num[tid]++; 691 sta->ampdu_mlme.addba_req_num[tid]++;
698 ___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR); 692 ___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 58693e52d458..e677b751d468 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -540,9 +540,6 @@ static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
540 540
541 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 541 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
542 542
543 if (sdata->vif.type != NL80211_IFTYPE_AP)
544 return -EINVAL;
545
546 old = sdata->u.ap.beacon; 543 old = sdata->u.ap.beacon;
547 544
548 if (old) 545 if (old)
@@ -559,9 +556,6 @@ static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
559 556
560 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 557 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
561 558
562 if (sdata->vif.type != NL80211_IFTYPE_AP)
563 return -EINVAL;
564
565 old = sdata->u.ap.beacon; 559 old = sdata->u.ap.beacon;
566 560
567 if (!old) 561 if (!old)
@@ -577,9 +571,6 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
577 571
578 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 572 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
579 573
580 if (sdata->vif.type != NL80211_IFTYPE_AP)
581 return -EINVAL;
582
583 old = sdata->u.ap.beacon; 574 old = sdata->u.ap.beacon;
584 575
585 if (!old) 576 if (!old)
@@ -728,10 +719,6 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
728 int err; 719 int err;
729 int layer2_update; 720 int layer2_update;
730 721
731 /* Prevent a race with changing the rate control algorithm */
732 if (!netif_running(dev))
733 return -ENETDOWN;
734
735 if (params->vlan) { 722 if (params->vlan) {
736 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 723 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
737 724
@@ -860,14 +847,8 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
860 struct sta_info *sta; 847 struct sta_info *sta;
861 int err; 848 int err;
862 849
863 if (!netif_running(dev))
864 return -ENETDOWN;
865
866 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 850 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
867 851
868 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
869 return -ENOTSUPP;
870
871 rcu_read_lock(); 852 rcu_read_lock();
872 sta = sta_info_get(local, next_hop); 853 sta = sta_info_get(local, next_hop);
873 if (!sta) { 854 if (!sta) {
@@ -913,14 +894,8 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
913 struct mesh_path *mpath; 894 struct mesh_path *mpath;
914 struct sta_info *sta; 895 struct sta_info *sta;
915 896
916 if (!netif_running(dev))
917 return -ENETDOWN;
918
919 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 897 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
920 898
921 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
922 return -ENOTSUPP;
923
924 rcu_read_lock(); 899 rcu_read_lock();
925 900
926 sta = sta_info_get(local, next_hop); 901 sta = sta_info_get(local, next_hop);
@@ -989,9 +964,6 @@ static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
989 964
990 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 965 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
991 966
992 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
993 return -ENOTSUPP;
994
995 rcu_read_lock(); 967 rcu_read_lock();
996 mpath = mesh_path_lookup(dst, sdata); 968 mpath = mesh_path_lookup(dst, sdata);
997 if (!mpath) { 969 if (!mpath) {
@@ -1013,9 +985,6 @@ static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1013 985
1014 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 986 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1015 987
1016 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1017 return -ENOTSUPP;
1018
1019 rcu_read_lock(); 988 rcu_read_lock();
1020 mpath = mesh_path_lookup_by_idx(idx, sdata); 989 mpath = mesh_path_lookup_by_idx(idx, sdata);
1021 if (!mpath) { 990 if (!mpath) {
@@ -1035,8 +1004,6 @@ static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1035 struct ieee80211_sub_if_data *sdata; 1004 struct ieee80211_sub_if_data *sdata;
1036 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1005 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1037 1006
1038 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1039 return -ENOTSUPP;
1040 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1007 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1041 return 0; 1008 return 0;
1042} 1009}
@@ -1054,9 +1021,6 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1054 struct ieee80211_sub_if_data *sdata; 1021 struct ieee80211_sub_if_data *sdata;
1055 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1022 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1056 1023
1057 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1058 return -ENOTSUPP;
1059
1060 /* Set the config options which we are interested in setting */ 1024 /* Set the config options which we are interested in setting */
1061 conf = &(sdata->u.mesh.mshcfg); 1025 conf = &(sdata->u.mesh.mshcfg);
1062 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1026 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
@@ -1104,9 +1068,6 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
1104 1068
1105 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1069 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1106 1070
1107 if (sdata->vif.type != NL80211_IFTYPE_AP)
1108 return -EINVAL;
1109
1110 if (params->use_cts_prot >= 0) { 1071 if (params->use_cts_prot >= 0) {
1111 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 1072 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1112 changed |= BSS_CHANGED_ERP_CTS_PROT; 1073 changed |= BSS_CHANGED_ERP_CTS_PROT;
@@ -1181,91 +1142,6 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
1181 return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); 1142 return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1182} 1143}
1183 1144
1184static int set_mgmt_extra_ie_sta(struct ieee80211_sub_if_data *sdata,
1185 u8 subtype, u8 *ies, size_t ies_len)
1186{
1187 struct ieee80211_local *local = sdata->local;
1188 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
1189
1190 switch (subtype) {
1191 case IEEE80211_STYPE_PROBE_REQ >> 4:
1192 if (local->ops->hw_scan)
1193 break;
1194 kfree(ifmgd->ie_probereq);
1195 ifmgd->ie_probereq = ies;
1196 ifmgd->ie_probereq_len = ies_len;
1197 return 0;
1198 case IEEE80211_STYPE_PROBE_RESP >> 4:
1199 kfree(ifmgd->ie_proberesp);
1200 ifmgd->ie_proberesp = ies;
1201 ifmgd->ie_proberesp_len = ies_len;
1202 return 0;
1203 case IEEE80211_STYPE_AUTH >> 4:
1204 kfree(ifmgd->ie_auth);
1205 ifmgd->ie_auth = ies;
1206 ifmgd->ie_auth_len = ies_len;
1207 return 0;
1208 case IEEE80211_STYPE_ASSOC_REQ >> 4:
1209 kfree(ifmgd->ie_assocreq);
1210 ifmgd->ie_assocreq = ies;
1211 ifmgd->ie_assocreq_len = ies_len;
1212 return 0;
1213 case IEEE80211_STYPE_REASSOC_REQ >> 4:
1214 kfree(ifmgd->ie_reassocreq);
1215 ifmgd->ie_reassocreq = ies;
1216 ifmgd->ie_reassocreq_len = ies_len;
1217 return 0;
1218 case IEEE80211_STYPE_DEAUTH >> 4:
1219 kfree(ifmgd->ie_deauth);
1220 ifmgd->ie_deauth = ies;
1221 ifmgd->ie_deauth_len = ies_len;
1222 return 0;
1223 case IEEE80211_STYPE_DISASSOC >> 4:
1224 kfree(ifmgd->ie_disassoc);
1225 ifmgd->ie_disassoc = ies;
1226 ifmgd->ie_disassoc_len = ies_len;
1227 return 0;
1228 }
1229
1230 return -EOPNOTSUPP;
1231}
1232
1233static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
1234 struct net_device *dev,
1235 struct mgmt_extra_ie_params *params)
1236{
1237 struct ieee80211_sub_if_data *sdata;
1238 u8 *ies;
1239 size_t ies_len;
1240 int ret = -EOPNOTSUPP;
1241
1242 if (params->ies) {
1243 ies = kmemdup(params->ies, params->ies_len, GFP_KERNEL);
1244 if (ies == NULL)
1245 return -ENOMEM;
1246 ies_len = params->ies_len;
1247 } else {
1248 ies = NULL;
1249 ies_len = 0;
1250 }
1251
1252 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1253
1254 switch (sdata->vif.type) {
1255 case NL80211_IFTYPE_STATION:
1256 ret = set_mgmt_extra_ie_sta(sdata, params->subtype,
1257 ies, ies_len);
1258 break;
1259 default:
1260 ret = -EOPNOTSUPP;
1261 break;
1262 }
1263
1264 if (ret)
1265 kfree(ies);
1266 return ret;
1267}
1268
1269#ifdef CONFIG_PM 1145#ifdef CONFIG_PM
1270static int ieee80211_suspend(struct wiphy *wiphy) 1146static int ieee80211_suspend(struct wiphy *wiphy)
1271{ 1147{
@@ -1287,9 +1163,6 @@ static int ieee80211_scan(struct wiphy *wiphy,
1287{ 1163{
1288 struct ieee80211_sub_if_data *sdata; 1164 struct ieee80211_sub_if_data *sdata;
1289 1165
1290 if (!netif_running(dev))
1291 return -ENETDOWN;
1292
1293 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1166 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1294 1167
1295 if (sdata->vif.type != NL80211_IFTYPE_STATION && 1168 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
@@ -1300,6 +1173,119 @@ static int ieee80211_scan(struct wiphy *wiphy,
1300 return ieee80211_request_scan(sdata, req); 1173 return ieee80211_request_scan(sdata, req);
1301} 1174}
1302 1175
1176static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1177 struct cfg80211_auth_request *req)
1178{
1179 struct ieee80211_sub_if_data *sdata;
1180
1181 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1182
1183 switch (req->auth_type) {
1184 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1185 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_OPEN;
1186 break;
1187 case NL80211_AUTHTYPE_SHARED_KEY:
1188 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_SHARED_KEY;
1189 break;
1190 case NL80211_AUTHTYPE_FT:
1191 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_FT;
1192 break;
1193 case NL80211_AUTHTYPE_NETWORK_EAP:
1194 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_LEAP;
1195 break;
1196 default:
1197 return -EOPNOTSUPP;
1198 }
1199
1200 memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN);
1201 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
1202 sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
1203
1204 /* TODO: req->chan */
1205 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
1206
1207 if (req->ssid) {
1208 sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
1209 memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
1210 sdata->u.mgd.ssid_len = req->ssid_len;
1211 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
1212 }
1213
1214 kfree(sdata->u.mgd.sme_auth_ie);
1215 sdata->u.mgd.sme_auth_ie = NULL;
1216 sdata->u.mgd.sme_auth_ie_len = 0;
1217 if (req->ie) {
1218 sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL);
1219 if (sdata->u.mgd.sme_auth_ie == NULL)
1220 return -ENOMEM;
1221 memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len);
1222 sdata->u.mgd.sme_auth_ie_len = req->ie_len;
1223 }
1224
1225 sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
1226 sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE;
1227 ieee80211_sta_req_auth(sdata);
1228 return 0;
1229}
1230
1231static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1232 struct cfg80211_assoc_request *req)
1233{
1234 struct ieee80211_sub_if_data *sdata;
1235 int ret;
1236
1237 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1238
1239 if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 ||
1240 !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED))
1241 return -ENOLINK; /* not authenticated */
1242
1243 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
1244 sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
1245
1246 /* TODO: req->chan */
1247 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
1248
1249 if (req->ssid) {
1250 sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
1251 memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
1252 sdata->u.mgd.ssid_len = req->ssid_len;
1253 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
1254 } else
1255 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
1256
1257 ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
1258 if (ret)
1259 return ret;
1260
1261 sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
1262 sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;
1263 ieee80211_sta_req_auth(sdata);
1264 return 0;
1265}
1266
1267static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1268 struct cfg80211_deauth_request *req)
1269{
1270 struct ieee80211_sub_if_data *sdata;
1271
1272 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1273
1274 /* TODO: req->ie */
1275 return ieee80211_sta_deauthenticate(sdata, req->reason_code);
1276}
1277
1278static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1279 struct cfg80211_disassoc_request *req)
1280{
1281 struct ieee80211_sub_if_data *sdata;
1282
1283 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1284
1285 /* TODO: req->ie */
1286 return ieee80211_sta_disassociate(sdata, req->reason_code);
1287}
1288
1303struct cfg80211_ops mac80211_config_ops = { 1289struct cfg80211_ops mac80211_config_ops = {
1304 .add_virtual_intf = ieee80211_add_iface, 1290 .add_virtual_intf = ieee80211_add_iface,
1305 .del_virtual_intf = ieee80211_del_iface, 1291 .del_virtual_intf = ieee80211_del_iface,
@@ -1329,8 +1315,11 @@ struct cfg80211_ops mac80211_config_ops = {
1329 .change_bss = ieee80211_change_bss, 1315 .change_bss = ieee80211_change_bss,
1330 .set_txq_params = ieee80211_set_txq_params, 1316 .set_txq_params = ieee80211_set_txq_params,
1331 .set_channel = ieee80211_set_channel, 1317 .set_channel = ieee80211_set_channel,
1332 .set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
1333 .suspend = ieee80211_suspend, 1318 .suspend = ieee80211_suspend,
1334 .resume = ieee80211_resume, 1319 .resume = ieee80211_resume,
1335 .scan = ieee80211_scan, 1320 .scan = ieee80211_scan,
1321 .auth = ieee80211_auth,
1322 .assoc = ieee80211_assoc,
1323 .deauth = ieee80211_deauth,
1324 .disassoc = ieee80211_disassoc,
1336}; 1325};
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index e37f557de3f3..210b9b6fecd2 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -40,6 +40,10 @@ static const struct file_operations name## _ops = { \
40 local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \ 40 local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \
41 local, &name## _ops); 41 local, &name## _ops);
42 42
43#define DEBUGFS_ADD_MODE(name, mode) \
44 local->debugfs.name = debugfs_create_file(#name, mode, phyd, \
45 local, &name## _ops);
46
43#define DEBUGFS_DEL(name) \ 47#define DEBUGFS_DEL(name) \
44 debugfs_remove(local->debugfs.name); \ 48 debugfs_remove(local->debugfs.name); \
45 local->debugfs.name = NULL; 49 local->debugfs.name = NULL;
@@ -113,6 +117,24 @@ static const struct file_operations tsf_ops = {
113 .open = mac80211_open_file_generic 117 .open = mac80211_open_file_generic
114}; 118};
115 119
120static ssize_t reset_write(struct file *file, const char __user *user_buf,
121 size_t count, loff_t *ppos)
122{
123 struct ieee80211_local *local = file->private_data;
124
125 rtnl_lock();
126 __ieee80211_suspend(&local->hw);
127 __ieee80211_resume(&local->hw);
128 rtnl_unlock();
129
130 return count;
131}
132
133static const struct file_operations reset_ops = {
134 .write = reset_write,
135 .open = mac80211_open_file_generic,
136};
137
116/* statistics stuff */ 138/* statistics stuff */
117 139
118#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ 140#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
@@ -254,6 +276,7 @@ void debugfs_hw_add(struct ieee80211_local *local)
254 DEBUGFS_ADD(total_ps_buffered); 276 DEBUGFS_ADD(total_ps_buffered);
255 DEBUGFS_ADD(wep_iv); 277 DEBUGFS_ADD(wep_iv);
256 DEBUGFS_ADD(tsf); 278 DEBUGFS_ADD(tsf);
279 DEBUGFS_ADD_MODE(reset, 0200);
257 280
258 statsd = debugfs_create_dir("statistics", phyd); 281 statsd = debugfs_create_dir("statistics", phyd);
259 local->debugfs.statistics = statsd; 282 local->debugfs.statistics = statsd;
@@ -308,6 +331,7 @@ void debugfs_hw_del(struct ieee80211_local *local)
308 DEBUGFS_DEL(total_ps_buffered); 331 DEBUGFS_DEL(total_ps_buffered);
309 DEBUGFS_DEL(wep_iv); 332 DEBUGFS_DEL(wep_iv);
310 DEBUGFS_DEL(tsf); 333 DEBUGFS_DEL(tsf);
334 DEBUGFS_DEL(reset);
311 335
312 DEBUGFS_STATS_DEL(transmitted_fragment_count); 336 DEBUGFS_STATS_DEL(transmitted_fragment_count);
313 DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); 337 DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index f4becc12904e..3201e1f96365 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -812,8 +812,9 @@ int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata)
812 812
813 ifibss->ibss_join_req = jiffies; 813 ifibss->ibss_join_req = jiffies;
814 ifibss->state = IEEE80211_IBSS_MLME_SEARCH; 814 ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
815 set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
815 816
816 return ieee80211_sta_find_ibss(sdata); 817 return 0;
817} 818}
818 819
819int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) 820int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index fbb91f1aebb2..e6ed78cb16b3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -149,11 +149,6 @@ struct ieee80211_tx_data {
149 149
150 struct ieee80211_channel *channel; 150 struct ieee80211_channel *channel;
151 151
152 /* Extra fragments (in addition to the first fragment
153 * in skb) */
154 struct sk_buff **extra_frag;
155 int num_extra_frag;
156
157 u16 ethertype; 152 u16 ethertype;
158 unsigned int flags; 153 unsigned int flags;
159}; 154};
@@ -189,12 +184,6 @@ struct ieee80211_rx_data {
189 u16 tkip_iv16; 184 u16 tkip_iv16;
190}; 185};
191 186
192struct ieee80211_tx_stored_packet {
193 struct sk_buff *skb;
194 struct sk_buff **extra_frag;
195 int num_extra_frag;
196};
197
198struct beacon_data { 187struct beacon_data {
199 u8 *head, *tail; 188 u8 *head, *tail;
200 int head_len, tail_len; 189 int head_len, tail_len;
@@ -247,8 +236,9 @@ struct mesh_preq_queue {
247#define IEEE80211_STA_ASSOCIATED BIT(4) 236#define IEEE80211_STA_ASSOCIATED BIT(4)
248#define IEEE80211_STA_PROBEREQ_POLL BIT(5) 237#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
249#define IEEE80211_STA_CREATE_IBSS BIT(6) 238#define IEEE80211_STA_CREATE_IBSS BIT(6)
250#define IEEE80211_STA_MIXED_CELL BIT(7) 239/* hole at 7, please re-use */
251#define IEEE80211_STA_WMM_ENABLED BIT(8) 240#define IEEE80211_STA_WMM_ENABLED BIT(8)
241/* hole at 9, please re-use */
252#define IEEE80211_STA_AUTO_SSID_SEL BIT(10) 242#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
253#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11) 243#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
254#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12) 244#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
@@ -256,6 +246,7 @@ struct mesh_preq_queue {
256#define IEEE80211_STA_TKIP_WEP_USED BIT(14) 246#define IEEE80211_STA_TKIP_WEP_USED BIT(14)
257#define IEEE80211_STA_CSA_RECEIVED BIT(15) 247#define IEEE80211_STA_CSA_RECEIVED BIT(15)
258#define IEEE80211_STA_MFP_ENABLED BIT(16) 248#define IEEE80211_STA_MFP_ENABLED BIT(16)
249#define IEEE80211_STA_EXT_SME BIT(17)
259/* flags for MLME request */ 250/* flags for MLME request */
260#define IEEE80211_STA_REQ_SCAN 0 251#define IEEE80211_STA_REQ_SCAN 0
261#define IEEE80211_STA_REQ_DIRECT_PROBE 1 252#define IEEE80211_STA_REQ_DIRECT_PROBE 1
@@ -266,12 +257,14 @@ struct mesh_preq_queue {
266#define IEEE80211_AUTH_ALG_OPEN BIT(0) 257#define IEEE80211_AUTH_ALG_OPEN BIT(0)
267#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) 258#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
268#define IEEE80211_AUTH_ALG_LEAP BIT(2) 259#define IEEE80211_AUTH_ALG_LEAP BIT(2)
260#define IEEE80211_AUTH_ALG_FT BIT(3)
269 261
270struct ieee80211_if_managed { 262struct ieee80211_if_managed {
271 struct timer_list timer; 263 struct timer_list timer;
272 struct timer_list chswitch_timer; 264 struct timer_list chswitch_timer;
273 struct work_struct work; 265 struct work_struct work;
274 struct work_struct chswitch_work; 266 struct work_struct chswitch_work;
267 struct work_struct beacon_loss_work;
275 268
276 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 269 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
277 270
@@ -305,6 +298,7 @@ struct ieee80211_if_managed {
305 unsigned long request; 298 unsigned long request;
306 299
307 unsigned long last_probe; 300 unsigned long last_probe;
301 unsigned long last_beacon;
308 302
309 unsigned int flags; 303 unsigned int flags;
310 304
@@ -321,20 +315,8 @@ struct ieee80211_if_managed {
321 int wmm_last_param_set; 315 int wmm_last_param_set;
322 316
323 /* Extra IE data for management frames */ 317 /* Extra IE data for management frames */
324 u8 *ie_probereq; 318 u8 *sme_auth_ie;
325 size_t ie_probereq_len; 319 size_t sme_auth_ie_len;
326 u8 *ie_proberesp;
327 size_t ie_proberesp_len;
328 u8 *ie_auth;
329 size_t ie_auth_len;
330 u8 *ie_assocreq;
331 size_t ie_assocreq_len;
332 u8 *ie_reassocreq;
333 size_t ie_reassocreq_len;
334 u8 *ie_deauth;
335 size_t ie_deauth_len;
336 u8 *ie_disassoc;
337 size_t ie_disassoc_len;
338}; 320};
339 321
340enum ieee80211_ibss_flags { 322enum ieee80211_ibss_flags {
@@ -421,7 +403,6 @@ struct ieee80211_if_mesh {
421 * 403 *
422 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 404 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
423 * @IEEE80211_SDATA_PROMISC: interface is promisc 405 * @IEEE80211_SDATA_PROMISC: interface is promisc
424 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
425 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode 406 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
426 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 407 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
427 * associated stations and deliver multicast frames both 408 * associated stations and deliver multicast frames both
@@ -430,9 +411,8 @@ struct ieee80211_if_mesh {
430enum ieee80211_sub_if_data_flags { 411enum ieee80211_sub_if_data_flags {
431 IEEE80211_SDATA_ALLMULTI = BIT(0), 412 IEEE80211_SDATA_ALLMULTI = BIT(0),
432 IEEE80211_SDATA_PROMISC = BIT(1), 413 IEEE80211_SDATA_PROMISC = BIT(1),
433 IEEE80211_SDATA_USERSPACE_MLME = BIT(2), 414 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
434 IEEE80211_SDATA_OPERATING_GMODE = BIT(3), 415 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
435 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(4),
436}; 416};
437 417
438struct ieee80211_sub_if_data { 418struct ieee80211_sub_if_data {
@@ -598,6 +578,8 @@ enum queue_stop_reason {
598 IEEE80211_QUEUE_STOP_REASON_PS, 578 IEEE80211_QUEUE_STOP_REASON_PS,
599 IEEE80211_QUEUE_STOP_REASON_CSA, 579 IEEE80211_QUEUE_STOP_REASON_CSA,
600 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 580 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
581 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
582 IEEE80211_QUEUE_STOP_REASON_PENDING,
601}; 583};
602 584
603struct ieee80211_master_priv { 585struct ieee80211_master_priv {
@@ -612,12 +594,7 @@ struct ieee80211_local {
612 594
613 const struct ieee80211_ops *ops; 595 const struct ieee80211_ops *ops;
614 596
615 /* AC queue corresponding to each AMPDU queue */ 597 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
616 s8 ampdu_ac_queue[IEEE80211_MAX_AMPDU_QUEUES];
617 unsigned int amdpu_ac_stop_refcnt[IEEE80211_MAX_AMPDU_QUEUES];
618
619 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES +
620 IEEE80211_MAX_AMPDU_QUEUES];
621 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 598 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
622 spinlock_t queue_stop_reason_lock; 599 spinlock_t queue_stop_reason_lock;
623 600
@@ -654,11 +631,17 @@ struct ieee80211_local {
654 struct sta_info *sta_hash[STA_HASH_SIZE]; 631 struct sta_info *sta_hash[STA_HASH_SIZE];
655 struct timer_list sta_cleanup; 632 struct timer_list sta_cleanup;
656 633
657 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)]; 634 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
658 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
659 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
660 struct tasklet_struct tx_pending_tasklet; 635 struct tasklet_struct tx_pending_tasklet;
661 636
637 /*
638 * This lock is used to prevent concurrent A-MPDU
639 * session start/stop processing, this thus also
640 * synchronises the ->ampdu_action() callback to
641 * drivers and limits it to one at a time.
642 */
643 spinlock_t ampdu_lock;
644
662 /* number of interfaces with corresponding IFF_ flags */ 645 /* number of interfaces with corresponding IFF_ flags */
663 atomic_t iff_allmultis, iff_promiscs; 646 atomic_t iff_allmultis, iff_promiscs;
664 647
@@ -774,6 +757,7 @@ struct ieee80211_local {
774 struct dentry *total_ps_buffered; 757 struct dentry *total_ps_buffered;
775 struct dentry *wep_iv; 758 struct dentry *wep_iv;
776 struct dentry *tsf; 759 struct dentry *tsf;
760 struct dentry *reset;
777 struct dentry *statistics; 761 struct dentry *statistics;
778 struct local_debugfsdentries_statsdentries { 762 struct local_debugfsdentries_statsdentries {
779 struct dentry *transmitted_fragment_count; 763 struct dentry *transmitted_fragment_count;
@@ -969,7 +953,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
969 struct sk_buff *skb, 953 struct sk_buff *skb,
970 struct ieee80211_rx_status *rx_status); 954 struct ieee80211_rx_status *rx_status);
971int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, 955int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
972 char *ie, size_t len); 956 const char *ie, size_t len);
973 957
974void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 958void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
975void ieee80211_scan_failed(struct ieee80211_local *local); 959void ieee80211_scan_failed(struct ieee80211_local *local);
@@ -1053,8 +1037,19 @@ void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
1053 u8 pwr_constr_elem_len); 1037 u8 pwr_constr_elem_len);
1054 1038
1055/* Suspend/resume */ 1039/* Suspend/resume */
1040#ifdef CONFIG_PM
1056int __ieee80211_suspend(struct ieee80211_hw *hw); 1041int __ieee80211_suspend(struct ieee80211_hw *hw);
1057int __ieee80211_resume(struct ieee80211_hw *hw); 1042int __ieee80211_resume(struct ieee80211_hw *hw);
1043#else
1044static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1045{
1046 return 0;
1047}
1048static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1049{
1050 return 0;
1051}
1052#endif
1058 1053
1059/* utility functions/constants */ 1054/* utility functions/constants */
1060extern void *mac80211_wiphy_privid; /* for wiphy privid */ 1055extern void *mac80211_wiphy_privid; /* for wiphy privid */
@@ -1081,6 +1076,9 @@ void ieee80211_dynamic_ps_timer(unsigned long data);
1081void ieee80211_send_nullfunc(struct ieee80211_local *local, 1076void ieee80211_send_nullfunc(struct ieee80211_local *local,
1082 struct ieee80211_sub_if_data *sdata, 1077 struct ieee80211_sub_if_data *sdata,
1083 int powersave); 1078 int powersave);
1079void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1080 struct ieee80211_hdr *hdr);
1081void ieee80211_beacon_loss_work(struct work_struct *work);
1084 1082
1085void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 1083void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1086 enum queue_stop_reason reason); 1084 enum queue_stop_reason reason);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index f9f27b9cadbe..91e8e1bacaaa 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -261,8 +261,7 @@ static int ieee80211_open(struct net_device *dev)
261 ieee80211_bss_info_change_notify(sdata, changed); 261 ieee80211_bss_info_change_notify(sdata, changed);
262 ieee80211_enable_keys(sdata); 262 ieee80211_enable_keys(sdata);
263 263
264 if (sdata->vif.type == NL80211_IFTYPE_STATION && 264 if (sdata->vif.type == NL80211_IFTYPE_STATION)
265 !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
266 netif_carrier_off(dev); 265 netif_carrier_off(dev);
267 else 266 else
268 netif_carrier_on(dev); 267 netif_carrier_on(dev);
@@ -478,6 +477,9 @@ static int ieee80211_stop(struct net_device *dev)
478 */ 477 */
479 cancel_work_sync(&sdata->u.mgd.work); 478 cancel_work_sync(&sdata->u.mgd.work);
480 cancel_work_sync(&sdata->u.mgd.chswitch_work); 479 cancel_work_sync(&sdata->u.mgd.chswitch_work);
480
481 cancel_work_sync(&sdata->u.mgd.beacon_loss_work);
482
481 /* 483 /*
482 * When we get here, the interface is marked down. 484 * When we get here, the interface is marked down.
483 * Call synchronize_rcu() to wait for the RX path 485 * Call synchronize_rcu() to wait for the RX path
@@ -653,13 +655,7 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
653 kfree(sdata->u.mgd.extra_ie); 655 kfree(sdata->u.mgd.extra_ie);
654 kfree(sdata->u.mgd.assocreq_ies); 656 kfree(sdata->u.mgd.assocreq_ies);
655 kfree(sdata->u.mgd.assocresp_ies); 657 kfree(sdata->u.mgd.assocresp_ies);
656 kfree(sdata->u.mgd.ie_probereq); 658 kfree(sdata->u.mgd.sme_auth_ie);
657 kfree(sdata->u.mgd.ie_proberesp);
658 kfree(sdata->u.mgd.ie_auth);
659 kfree(sdata->u.mgd.ie_assocreq);
660 kfree(sdata->u.mgd.ie_reassocreq);
661 kfree(sdata->u.mgd.ie_deauth);
662 kfree(sdata->u.mgd.ie_disassoc);
663 break; 659 break;
664 case NL80211_IFTYPE_WDS: 660 case NL80211_IFTYPE_WDS:
665 case NL80211_IFTYPE_AP_VLAN: 661 case NL80211_IFTYPE_AP_VLAN:
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index f38db4d37e5d..a6f1d8a869bc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -161,12 +161,6 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
161 if (WARN_ON(!netif_running(sdata->dev))) 161 if (WARN_ON(!netif_running(sdata->dev)))
162 return 0; 162 return 0;
163 163
164 if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
165 return -EINVAL;
166
167 if (!local->ops->config_interface)
168 return 0;
169
170 memset(&conf, 0, sizeof(conf)); 164 memset(&conf, 0, sizeof(conf));
171 165
172 if (sdata->vif.type == NL80211_IFTYPE_STATION) 166 if (sdata->vif.type == NL80211_IFTYPE_STATION)
@@ -183,6 +177,9 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
183 return -EINVAL; 177 return -EINVAL;
184 } 178 }
185 179
180 if (!local->ops->config_interface)
181 return 0;
182
186 switch (sdata->vif.type) { 183 switch (sdata->vif.type) {
187 case NL80211_IFTYPE_AP: 184 case NL80211_IFTYPE_AP:
188 case NL80211_IFTYPE_ADHOC: 185 case NL80211_IFTYPE_ADHOC:
@@ -224,9 +221,6 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
224 } 221 }
225 } 222 }
226 223
227 if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
228 return -EINVAL;
229
230 conf.changed = changed; 224 conf.changed = changed;
231 225
232 return local->ops->config_interface(local_to_hw(local), 226 return local->ops->config_interface(local_to_hw(local),
@@ -780,13 +774,10 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
780 setup_timer(&local->dynamic_ps_timer, 774 setup_timer(&local->dynamic_ps_timer,
781 ieee80211_dynamic_ps_timer, (unsigned long) local); 775 ieee80211_dynamic_ps_timer, (unsigned long) local);
782 776
783 for (i = 0; i < IEEE80211_MAX_AMPDU_QUEUES; i++)
784 local->ampdu_ac_queue[i] = -1;
785 /* using an s8 won't work with more than that */
786 BUILD_BUG_ON(IEEE80211_MAX_AMPDU_QUEUES > 127);
787
788 sta_info_init(local); 777 sta_info_init(local);
789 778
779 for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
780 skb_queue_head_init(&local->pending[i]);
790 tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, 781 tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
791 (unsigned long)local); 782 (unsigned long)local);
792 tasklet_disable(&local->tx_pending_tasklet); 783 tasklet_disable(&local->tx_pending_tasklet);
@@ -799,6 +790,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
799 skb_queue_head_init(&local->skb_queue); 790 skb_queue_head_init(&local->skb_queue);
800 skb_queue_head_init(&local->skb_queue_unreliable); 791 skb_queue_head_init(&local->skb_queue_unreliable);
801 792
793 spin_lock_init(&local->ampdu_lock);
794
802 return local_to_hw(local); 795 return local_to_hw(local);
803} 796}
804EXPORT_SYMBOL(ieee80211_alloc_hw); 797EXPORT_SYMBOL(ieee80211_alloc_hw);
@@ -876,10 +869,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
876 */ 869 */
877 if (hw->queues > IEEE80211_MAX_QUEUES) 870 if (hw->queues > IEEE80211_MAX_QUEUES)
878 hw->queues = IEEE80211_MAX_QUEUES; 871 hw->queues = IEEE80211_MAX_QUEUES;
879 if (hw->ampdu_queues > IEEE80211_MAX_AMPDU_QUEUES)
880 hw->ampdu_queues = IEEE80211_MAX_AMPDU_QUEUES;
881 if (hw->queues < 4)
882 hw->ampdu_queues = 0;
883 872
884 mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv), 873 mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
885 "wmaster%d", ieee80211_master_setup, 874 "wmaster%d", ieee80211_master_setup,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 841b8450b3de..7ecda9d59d8a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -30,7 +30,7 @@
30#define IEEE80211_ASSOC_TIMEOUT (HZ / 5) 30#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
31#define IEEE80211_ASSOC_MAX_TRIES 3 31#define IEEE80211_ASSOC_MAX_TRIES 3
32#define IEEE80211_MONITORING_INTERVAL (2 * HZ) 32#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
33#define IEEE80211_PROBE_INTERVAL (60 * HZ) 33#define IEEE80211_PROBE_IDLE_TIME (60 * HZ)
34#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ) 34#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
35 35
36/* utils */ 36/* utils */
@@ -82,38 +82,23 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
82 82
83/* frame sending functions */ 83/* frame sending functions */
84 84
85static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
86{
87 if (ies)
88 memcpy(skb_put(skb, ies_len), ies, ies_len);
89}
90
91static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) 85static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
92{ 86{
93 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 87 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
94 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_local *local = sdata->local;
95 struct sk_buff *skb; 89 struct sk_buff *skb;
96 struct ieee80211_mgmt *mgmt; 90 struct ieee80211_mgmt *mgmt;
97 u8 *pos, *ies, *ht_ie, *e_ies; 91 u8 *pos, *ies, *ht_ie;
98 int i, len, count, rates_len, supp_rates_len; 92 int i, len, count, rates_len, supp_rates_len;
99 u16 capab; 93 u16 capab;
100 struct ieee80211_bss *bss; 94 struct ieee80211_bss *bss;
101 int wmm = 0; 95 int wmm = 0;
102 struct ieee80211_supported_band *sband; 96 struct ieee80211_supported_band *sband;
103 u32 rates = 0; 97 u32 rates = 0;
104 size_t e_ies_len;
105
106 if (ifmgd->flags & IEEE80211_IBSS_PREV_BSSID_SET) {
107 e_ies = sdata->u.mgd.ie_reassocreq;
108 e_ies_len = sdata->u.mgd.ie_reassocreq_len;
109 } else {
110 e_ies = sdata->u.mgd.ie_assocreq;
111 e_ies_len = sdata->u.mgd.ie_assocreq_len;
112 }
113 98
114 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 99 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
115 sizeof(*mgmt) + 200 + ifmgd->extra_ie_len + 100 sizeof(*mgmt) + 200 + ifmgd->extra_ie_len +
116 ifmgd->ssid_len + e_ies_len); 101 ifmgd->ssid_len);
117 if (!skb) { 102 if (!skb) {
118 printk(KERN_DEBUG "%s: failed to allocate buffer for assoc " 103 printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
119 "frame\n", sdata->dev->name); 104 "frame\n", sdata->dev->name);
@@ -304,8 +289,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
304 memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs)); 289 memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
305 } 290 }
306 291
307 add_extra_ies(skb, e_ies, e_ies_len);
308
309 kfree(ifmgd->assocreq_ies); 292 kfree(ifmgd->assocreq_ies);
310 ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies; 293 ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies;
311 ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL); 294 ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL);
@@ -323,19 +306,8 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
323 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 306 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
324 struct sk_buff *skb; 307 struct sk_buff *skb;
325 struct ieee80211_mgmt *mgmt; 308 struct ieee80211_mgmt *mgmt;
326 u8 *ies;
327 size_t ies_len;
328
329 if (stype == IEEE80211_STYPE_DEAUTH) {
330 ies = sdata->u.mgd.ie_deauth;
331 ies_len = sdata->u.mgd.ie_deauth_len;
332 } else {
333 ies = sdata->u.mgd.ie_disassoc;
334 ies_len = sdata->u.mgd.ie_disassoc_len;
335 }
336 309
337 skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 310 skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
338 ies_len);
339 if (!skb) { 311 if (!skb) {
340 printk(KERN_DEBUG "%s: failed to allocate buffer for " 312 printk(KERN_DEBUG "%s: failed to allocate buffer for "
341 "deauth/disassoc frame\n", sdata->dev->name); 313 "deauth/disassoc frame\n", sdata->dev->name);
@@ -353,8 +325,6 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
353 /* u.deauth.reason_code == u.disassoc.reason_code */ 325 /* u.deauth.reason_code == u.disassoc.reason_code */
354 mgmt->u.deauth.reason_code = cpu_to_le16(reason); 326 mgmt->u.deauth.reason_code = cpu_to_le16(reason);
355 327
356 add_extra_ies(skb, ies, ies_len);
357
358 ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED); 328 ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
359} 329}
360 330
@@ -640,6 +610,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
640 bss_info_changed |= ieee80211_handle_bss_capability(sdata, 610 bss_info_changed |= ieee80211_handle_bss_capability(sdata,
641 bss->cbss.capability, bss->has_erp_value, bss->erp_value); 611 bss->cbss.capability, bss->has_erp_value, bss->erp_value);
642 612
613 cfg80211_hold_bss(&bss->cbss);
614
643 ieee80211_rx_bss_put(local, bss); 615 ieee80211_rx_bss_put(local, bss);
644 } 616 }
645 617
@@ -682,6 +654,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
682static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata) 654static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
683{ 655{
684 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 656 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
657 struct ieee80211_local *local = sdata->local;
685 658
686 ifmgd->direct_probe_tries++; 659 ifmgd->direct_probe_tries++;
687 if (ifmgd->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) { 660 if (ifmgd->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
@@ -697,6 +670,13 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
697 ieee80211_rx_bss_remove(sdata, ifmgd->bssid, 670 ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
698 sdata->local->hw.conf.channel->center_freq, 671 sdata->local->hw.conf.channel->center_freq,
699 ifmgd->ssid, ifmgd->ssid_len); 672 ifmgd->ssid, ifmgd->ssid_len);
673
674 /*
675 * We might have a pending scan which had no chance to run yet
676 * due to state == IEEE80211_STA_MLME_DIRECT_PROBE.
677 * Hence, queue the STAs work again
678 */
679 queue_work(local->hw.workqueue, &ifmgd->work);
700 return; 680 return;
701 } 681 }
702 682
@@ -721,6 +701,9 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
721static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata) 701static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
722{ 702{
723 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 703 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
704 struct ieee80211_local *local = sdata->local;
705 u8 *ies;
706 size_t ies_len;
724 707
725 ifmgd->auth_tries++; 708 ifmgd->auth_tries++;
726 if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) { 709 if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
@@ -732,6 +715,13 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
732 ieee80211_rx_bss_remove(sdata, ifmgd->bssid, 715 ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
733 sdata->local->hw.conf.channel->center_freq, 716 sdata->local->hw.conf.channel->center_freq,
734 ifmgd->ssid, ifmgd->ssid_len); 717 ifmgd->ssid, ifmgd->ssid_len);
718
719 /*
720 * We might have a pending scan which had no chance to run yet
721 * due to state == IEEE80211_STA_MLME_AUTHENTICATE.
722 * Hence, queue the STAs work again
723 */
724 queue_work(local->hw.workqueue, &ifmgd->work);
735 return; 725 return;
736 } 726 }
737 727
@@ -739,7 +729,14 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
739 printk(KERN_DEBUG "%s: authenticate with AP %pM\n", 729 printk(KERN_DEBUG "%s: authenticate with AP %pM\n",
740 sdata->dev->name, ifmgd->bssid); 730 sdata->dev->name, ifmgd->bssid);
741 731
742 ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, NULL, 0, 732 if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
733 ies = ifmgd->sme_auth_ie;
734 ies_len = ifmgd->sme_auth_ie_len;
735 } else {
736 ies = NULL;
737 ies_len = 0;
738 }
739 ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ies, ies_len,
743 ifmgd->bssid, 0); 740 ifmgd->bssid, 0);
744 ifmgd->auth_transaction = 2; 741 ifmgd->auth_transaction = 2;
745 742
@@ -756,6 +753,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
756{ 753{
757 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 754 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
758 struct ieee80211_local *local = sdata->local; 755 struct ieee80211_local *local = sdata->local;
756 struct ieee80211_conf *conf = &local_to_hw(local)->conf;
757 struct ieee80211_bss *bss;
759 struct sta_info *sta; 758 struct sta_info *sta;
760 u32 changed = 0, config_changed = 0; 759 u32 changed = 0, config_changed = 0;
761 760
@@ -779,6 +778,15 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
779 778
780 ieee80211_sta_tear_down_BA_sessions(sta); 779 ieee80211_sta_tear_down_BA_sessions(sta);
781 780
781 bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
782 conf->channel->center_freq,
783 ifmgd->ssid, ifmgd->ssid_len);
784
785 if (bss) {
786 cfg80211_unhold_bss(&bss->cbss);
787 ieee80211_rx_bss_put(local, bss);
788 }
789
782 if (self_disconnected) { 790 if (self_disconnected) {
783 if (deauth) 791 if (deauth)
784 ieee80211_send_deauth_disassoc(sdata, 792 ieee80211_send_deauth_disassoc(sdata,
@@ -854,7 +862,7 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
854 int wep_privacy; 862 int wep_privacy;
855 int privacy_invoked; 863 int privacy_invoked;
856 864
857 if (!ifmgd || (ifmgd->flags & IEEE80211_STA_MIXED_CELL)) 865 if (!ifmgd || (ifmgd->flags & IEEE80211_STA_EXT_SME))
858 return 0; 866 return 0;
859 867
860 bss = ieee80211_rx_bss_get(local, ifmgd->bssid, 868 bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
@@ -878,6 +886,7 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
878static void ieee80211_associate(struct ieee80211_sub_if_data *sdata) 886static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
879{ 887{
880 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 888 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
889 struct ieee80211_local *local = sdata->local;
881 890
882 ifmgd->assoc_tries++; 891 ifmgd->assoc_tries++;
883 if (ifmgd->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) { 892 if (ifmgd->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
@@ -889,6 +898,12 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
889 ieee80211_rx_bss_remove(sdata, ifmgd->bssid, 898 ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
890 sdata->local->hw.conf.channel->center_freq, 899 sdata->local->hw.conf.channel->center_freq,
891 ifmgd->ssid, ifmgd->ssid_len); 900 ifmgd->ssid, ifmgd->ssid_len);
901 /*
902 * We might have a pending scan which had no chance to run yet
903 * due to state == IEEE80211_STA_MLME_ASSOCIATE.
904 * Hence, queue the STAs work again
905 */
906 queue_work(local->hw.workqueue, &ifmgd->work);
892 return; 907 return;
893 } 908 }
894 909
@@ -907,13 +922,55 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
907 mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT); 922 mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
908} 923}
909 924
925void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
926 struct ieee80211_hdr *hdr)
927{
928 /*
929 * We can postpone the mgd.timer whenever receiving unicast frames
930 * from AP because we know that the connection is working both ways
931 * at that time. But multicast frames (and hence also beacons) must
932 * be ignored here, because we need to trigger the timer during
933 * data idle periods for sending the periodical probe request to
934 * the AP.
935 */
936 if (!is_multicast_ether_addr(hdr->addr1))
937 mod_timer(&sdata->u.mgd.timer,
938 jiffies + IEEE80211_MONITORING_INTERVAL);
939}
940
941void ieee80211_beacon_loss_work(struct work_struct *work)
942{
943 struct ieee80211_sub_if_data *sdata =
944 container_of(work, struct ieee80211_sub_if_data,
945 u.mgd.beacon_loss_work);
946 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
947
948 printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
949 "- sending probe request\n", sdata->dev->name,
950 sdata->u.mgd.bssid);
951
952 ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
953 ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
954 ifmgd->ssid_len, NULL, 0);
955
956 mod_timer(&ifmgd->timer, jiffies + IEEE80211_MONITORING_INTERVAL);
957}
958
959void ieee80211_beacon_loss(struct ieee80211_vif *vif)
960{
961 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
962
963 queue_work(sdata->local->hw.workqueue,
964 &sdata->u.mgd.beacon_loss_work);
965}
966EXPORT_SYMBOL(ieee80211_beacon_loss);
910 967
911static void ieee80211_associated(struct ieee80211_sub_if_data *sdata) 968static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
912{ 969{
913 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 970 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
914 struct ieee80211_local *local = sdata->local; 971 struct ieee80211_local *local = sdata->local;
915 struct sta_info *sta; 972 struct sta_info *sta;
916 int disassoc; 973 bool disassoc = false;
917 974
918 /* TODO: start monitoring current AP signal quality and number of 975 /* TODO: start monitoring current AP signal quality and number of
919 * missed beacons. Scan other channels every now and then and search 976 * missed beacons. Scan other channels every now and then and search
@@ -928,36 +985,45 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
928 if (!sta) { 985 if (!sta) {
929 printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n", 986 printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
930 sdata->dev->name, ifmgd->bssid); 987 sdata->dev->name, ifmgd->bssid);
931 disassoc = 1; 988 disassoc = true;
932 } else { 989 goto unlock;
933 disassoc = 0;
934 if (time_after(jiffies,
935 sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
936 if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
937 printk(KERN_DEBUG "%s: No ProbeResp from "
938 "current AP %pM - assume out of "
939 "range\n",
940 sdata->dev->name, ifmgd->bssid);
941 disassoc = 1;
942 } else
943 ieee80211_send_probe_req(sdata, ifmgd->bssid,
944 ifmgd->ssid,
945 ifmgd->ssid_len,
946 NULL, 0);
947 ifmgd->flags ^= IEEE80211_STA_PROBEREQ_POLL;
948 } else {
949 ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
950 if (time_after(jiffies, ifmgd->last_probe +
951 IEEE80211_PROBE_INTERVAL)) {
952 ifmgd->last_probe = jiffies;
953 ieee80211_send_probe_req(sdata, ifmgd->bssid,
954 ifmgd->ssid,
955 ifmgd->ssid_len,
956 NULL, 0);
957 }
958 }
959 } 990 }
960 991
992 if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
993 time_after(jiffies, sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
994 printk(KERN_DEBUG "%s: no probe response from AP %pM "
995 "- disassociating\n",
996 sdata->dev->name, ifmgd->bssid);
997 disassoc = true;
998 ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
999 goto unlock;
1000 }
1001
1002 /*
1003 * Beacon filtering is only enabled with power save and then the
1004 * stack should not check for beacon loss.
1005 */
1006 if (!((local->hw.flags & IEEE80211_HW_BEACON_FILTER) &&
1007 (local->hw.conf.flags & IEEE80211_CONF_PS)) &&
1008 time_after(jiffies,
1009 ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) {
1010 printk(KERN_DEBUG "%s: beacon loss from AP %pM "
1011 "- sending probe request\n",
1012 sdata->dev->name, ifmgd->bssid);
1013 ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
1014 ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
1015 ifmgd->ssid_len, NULL, 0);
1016 goto unlock;
1017
1018 }
1019
1020 if (time_after(jiffies, sta->last_rx + IEEE80211_PROBE_IDLE_TIME)) {
1021 ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
1022 ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
1023 ifmgd->ssid_len, NULL, 0);
1024 }
1025
1026 unlock:
961 rcu_read_unlock(); 1027 rcu_read_unlock();
962 1028
963 if (disassoc) 1029 if (disassoc)
@@ -975,7 +1041,11 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
975 1041
976 printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name); 1042 printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
977 ifmgd->flags |= IEEE80211_STA_AUTHENTICATED; 1043 ifmgd->flags |= IEEE80211_STA_AUTHENTICATED;
978 ieee80211_associate(sdata); 1044 if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
1045 /* Wait for SME to request association */
1046 ifmgd->state = IEEE80211_STA_MLME_DISABLED;
1047 } else
1048 ieee80211_associate(sdata);
979} 1049}
980 1050
981 1051
@@ -1061,12 +1131,15 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
1061 switch (ifmgd->auth_alg) { 1131 switch (ifmgd->auth_alg) {
1062 case WLAN_AUTH_OPEN: 1132 case WLAN_AUTH_OPEN:
1063 case WLAN_AUTH_LEAP: 1133 case WLAN_AUTH_LEAP:
1134 case WLAN_AUTH_FT:
1064 ieee80211_auth_completed(sdata); 1135 ieee80211_auth_completed(sdata);
1136 cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
1065 break; 1137 break;
1066 case WLAN_AUTH_SHARED_KEY: 1138 case WLAN_AUTH_SHARED_KEY:
1067 if (ifmgd->auth_transaction == 4) 1139 if (ifmgd->auth_transaction == 4) {
1068 ieee80211_auth_completed(sdata); 1140 ieee80211_auth_completed(sdata);
1069 else 1141 cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
1142 } else
1070 ieee80211_auth_challenge(sdata, mgmt, len); 1143 ieee80211_auth_challenge(sdata, mgmt, len);
1071 break; 1144 break;
1072 } 1145 }
@@ -1092,9 +1165,10 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
1092 printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n", 1165 printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n",
1093 sdata->dev->name, reason_code); 1166 sdata->dev->name, reason_code);
1094 1167
1095 if (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE || 1168 if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
1096 ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE || 1169 (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
1097 ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) { 1170 ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
1171 ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) {
1098 ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE; 1172 ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
1099 mod_timer(&ifmgd->timer, jiffies + 1173 mod_timer(&ifmgd->timer, jiffies +
1100 IEEE80211_RETRY_AUTH_INTERVAL); 1174 IEEE80211_RETRY_AUTH_INTERVAL);
@@ -1102,6 +1176,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
1102 1176
1103 ieee80211_set_disassoc(sdata, true, false, 0); 1177 ieee80211_set_disassoc(sdata, true, false, 0);
1104 ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED; 1178 ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
1179 cfg80211_send_rx_deauth(sdata->dev, (u8 *) mgmt, len);
1105} 1180}
1106 1181
1107 1182
@@ -1124,13 +1199,15 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
1124 printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n", 1199 printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n",
1125 sdata->dev->name, reason_code); 1200 sdata->dev->name, reason_code);
1126 1201
1127 if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) { 1202 if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
1203 ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
1128 ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE; 1204 ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
1129 mod_timer(&ifmgd->timer, jiffies + 1205 mod_timer(&ifmgd->timer, jiffies +
1130 IEEE80211_RETRY_AUTH_INTERVAL); 1206 IEEE80211_RETRY_AUTH_INTERVAL);
1131 } 1207 }
1132 1208
1133 ieee80211_set_disassoc(sdata, false, false, reason_code); 1209 ieee80211_set_disassoc(sdata, false, false, reason_code);
1210 cfg80211_send_rx_disassoc(sdata->dev, (u8 *) mgmt, len);
1134} 1211}
1135 1212
1136 1213
@@ -1346,7 +1423,14 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
1346 bss_conf->assoc_capability = capab_info; 1423 bss_conf->assoc_capability = capab_info;
1347 ieee80211_set_associated(sdata, changed); 1424 ieee80211_set_associated(sdata, changed);
1348 1425
1426 /*
1427 * initialise the time of last beacon to be the association time,
1428 * otherwise beacon loss check will trigger immediately
1429 */
1430 ifmgd->last_beacon = jiffies;
1431
1349 ieee80211_associated(sdata); 1432 ieee80211_associated(sdata);
1433 cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
1350} 1434}
1351 1435
1352 1436
@@ -1393,9 +1477,12 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
1393 size_t len, 1477 size_t len,
1394 struct ieee80211_rx_status *rx_status) 1478 struct ieee80211_rx_status *rx_status)
1395{ 1479{
1480 struct ieee80211_if_managed *ifmgd;
1396 size_t baselen; 1481 size_t baselen;
1397 struct ieee802_11_elems elems; 1482 struct ieee802_11_elems elems;
1398 1483
1484 ifmgd = &sdata->u.mgd;
1485
1399 if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN)) 1486 if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
1400 return; /* ignore ProbeResp to foreign address */ 1487 return; /* ignore ProbeResp to foreign address */
1401 1488
@@ -1410,11 +1497,14 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
1410 1497
1411 /* direct probe may be part of the association flow */ 1498 /* direct probe may be part of the association flow */
1412 if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE, 1499 if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
1413 &sdata->u.mgd.request)) { 1500 &ifmgd->request)) {
1414 printk(KERN_DEBUG "%s direct probe responded\n", 1501 printk(KERN_DEBUG "%s direct probe responded\n",
1415 sdata->dev->name); 1502 sdata->dev->name);
1416 ieee80211_authenticate(sdata); 1503 ieee80211_authenticate(sdata);
1417 } 1504 }
1505
1506 if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
1507 ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
1418} 1508}
1419 1509
1420static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, 1510static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
@@ -1636,6 +1726,8 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
1636 ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY; 1726 ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY;
1637 else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP) 1727 else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
1638 ifmgd->auth_alg = WLAN_AUTH_LEAP; 1728 ifmgd->auth_alg = WLAN_AUTH_LEAP;
1729 else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_FT)
1730 ifmgd->auth_alg = WLAN_AUTH_FT;
1639 else 1731 else
1640 ifmgd->auth_alg = WLAN_AUTH_OPEN; 1732 ifmgd->auth_alg = WLAN_AUTH_OPEN;
1641 ifmgd->auth_transaction = -1; 1733 ifmgd->auth_transaction = -1;
@@ -1659,7 +1751,8 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
1659 u16 capa_val = WLAN_CAPABILITY_ESS; 1751 u16 capa_val = WLAN_CAPABILITY_ESS;
1660 struct ieee80211_channel *chan = local->oper_channel; 1752 struct ieee80211_channel *chan = local->oper_channel;
1661 1753
1662 if (ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL | 1754 if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
1755 ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
1663 IEEE80211_STA_AUTO_BSSID_SEL | 1756 IEEE80211_STA_AUTO_BSSID_SEL |
1664 IEEE80211_STA_AUTO_CHANNEL_SEL)) { 1757 IEEE80211_STA_AUTO_CHANNEL_SEL)) {
1665 capa_mask |= WLAN_CAPABILITY_PRIVACY; 1758 capa_mask |= WLAN_CAPABILITY_PRIVACY;
@@ -1822,6 +1915,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
1822 ifmgd = &sdata->u.mgd; 1915 ifmgd = &sdata->u.mgd;
1823 INIT_WORK(&ifmgd->work, ieee80211_sta_work); 1916 INIT_WORK(&ifmgd->work, ieee80211_sta_work);
1824 INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work); 1917 INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
1918 INIT_WORK(&ifmgd->beacon_loss_work, ieee80211_beacon_loss_work);
1825 setup_timer(&ifmgd->timer, ieee80211_sta_timer, 1919 setup_timer(&ifmgd->timer, ieee80211_sta_timer,
1826 (unsigned long) sdata); 1920 (unsigned long) sdata);
1827 setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer, 1921 setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
@@ -1834,7 +1928,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
1834 ifmgd->flags |= IEEE80211_STA_CREATE_IBSS | 1928 ifmgd->flags |= IEEE80211_STA_CREATE_IBSS |
1835 IEEE80211_STA_AUTO_BSSID_SEL | 1929 IEEE80211_STA_AUTO_BSSID_SEL |
1836 IEEE80211_STA_AUTO_CHANNEL_SEL; 1930 IEEE80211_STA_AUTO_CHANNEL_SEL;
1837 if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4) 1931 if (sdata->local->hw.queues >= 4)
1838 ifmgd->flags |= IEEE80211_STA_WMM_ENABLED; 1932 ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
1839} 1933}
1840 1934
@@ -1856,7 +1950,11 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
1856 ieee80211_set_disassoc(sdata, true, true, 1950 ieee80211_set_disassoc(sdata, true, true,
1857 WLAN_REASON_DEAUTH_LEAVING); 1951 WLAN_REASON_DEAUTH_LEAVING);
1858 1952
1859 set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request); 1953 if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) ||
1954 ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
1955 set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
1956 else if (ifmgd->flags & IEEE80211_STA_EXT_SME)
1957 set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
1860 queue_work(local->hw.workqueue, &ifmgd->work); 1958 queue_work(local->hw.workqueue, &ifmgd->work);
1861 } 1959 }
1862} 1960}
@@ -1865,8 +1963,6 @@ int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata)
1865{ 1963{
1866 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 1964 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
1867 1965
1868 ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
1869
1870 if (ifmgd->ssid_len) 1966 if (ifmgd->ssid_len)
1871 ifmgd->flags |= IEEE80211_STA_SSID_SET; 1967 ifmgd->flags |= IEEE80211_STA_SSID_SET;
1872 else 1968 else
@@ -1885,6 +1981,10 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size
1885 ifmgd = &sdata->u.mgd; 1981 ifmgd = &sdata->u.mgd;
1886 1982
1887 if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) { 1983 if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) {
1984 /*
1985 * Do not use reassociation if SSID is changed (different ESS).
1986 */
1987 ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
1888 memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid)); 1988 memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid));
1889 memcpy(ifmgd->ssid, ssid, len); 1989 memcpy(ifmgd->ssid, ssid, len);
1890 ifmgd->ssid_len = len; 1990 ifmgd->ssid_len = len;
@@ -1923,7 +2023,8 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
1923 return ieee80211_sta_commit(sdata); 2023 return ieee80211_sta_commit(sdata);
1924} 2024}
1925 2025
1926int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len) 2026int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
2027 const char *ie, size_t len)
1927{ 2028{
1928 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 2029 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
1929 2030
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 44525f517077..027302326498 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -10,6 +10,10 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
10 struct ieee80211_sub_if_data *sdata; 10 struct ieee80211_sub_if_data *sdata;
11 struct ieee80211_if_init_conf conf; 11 struct ieee80211_if_init_conf conf;
12 struct sta_info *sta; 12 struct sta_info *sta;
13 unsigned long flags;
14
15 ieee80211_stop_queues_by_reason(hw,
16 IEEE80211_QUEUE_STOP_REASON_SUSPEND);
13 17
14 flush_workqueue(local->hw.workqueue); 18 flush_workqueue(local->hw.workqueue);
15 19
@@ -17,10 +21,23 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
17 list_for_each_entry(sdata, &local->interfaces, list) 21 list_for_each_entry(sdata, &local->interfaces, list)
18 ieee80211_disable_keys(sdata); 22 ieee80211_disable_keys(sdata);
19 23
20 /* remove STAs */ 24 /* Tear down aggregation sessions */
21 list_for_each_entry(sta, &local->sta_list, list) { 25
26 rcu_read_lock();
27
28 if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
29 list_for_each_entry_rcu(sta, &local->sta_list, list) {
30 set_sta_flags(sta, WLAN_STA_SUSPEND);
31 ieee80211_sta_tear_down_BA_sessions(sta);
32 }
33 }
22 34
23 if (local->ops->sta_notify) { 35 rcu_read_unlock();
36
37 /* remove STAs */
38 if (local->ops->sta_notify) {
39 spin_lock_irqsave(&local->sta_lock, flags);
40 list_for_each_entry(sta, &local->sta_list, list) {
24 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) 41 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
25 sdata = container_of(sdata->bss, 42 sdata = container_of(sdata->bss,
26 struct ieee80211_sub_if_data, 43 struct ieee80211_sub_if_data,
@@ -29,11 +46,11 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
29 local->ops->sta_notify(hw, &sdata->vif, 46 local->ops->sta_notify(hw, &sdata->vif,
30 STA_NOTIFY_REMOVE, &sta->sta); 47 STA_NOTIFY_REMOVE, &sta->sta);
31 } 48 }
49 spin_unlock_irqrestore(&local->sta_lock, flags);
32 } 50 }
33 51
34 /* remove all interfaces */ 52 /* remove all interfaces */
35 list_for_each_entry(sdata, &local->interfaces, list) { 53 list_for_each_entry(sdata, &local->interfaces, list) {
36
37 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 54 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
38 sdata->vif.type != NL80211_IFTYPE_MONITOR && 55 sdata->vif.type != NL80211_IFTYPE_MONITOR &&
39 netif_running(sdata->dev)) { 56 netif_running(sdata->dev)) {
@@ -61,6 +78,7 @@ int __ieee80211_resume(struct ieee80211_hw *hw)
61 struct ieee80211_sub_if_data *sdata; 78 struct ieee80211_sub_if_data *sdata;
62 struct ieee80211_if_init_conf conf; 79 struct ieee80211_if_init_conf conf;
63 struct sta_info *sta; 80 struct sta_info *sta;
81 unsigned long flags;
64 int res; 82 int res;
65 83
66 /* restart hardware */ 84 /* restart hardware */
@@ -72,7 +90,6 @@ int __ieee80211_resume(struct ieee80211_hw *hw)
72 90
73 /* add interfaces */ 91 /* add interfaces */
74 list_for_each_entry(sdata, &local->interfaces, list) { 92 list_for_each_entry(sdata, &local->interfaces, list) {
75
76 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 93 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
77 sdata->vif.type != NL80211_IFTYPE_MONITOR && 94 sdata->vif.type != NL80211_IFTYPE_MONITOR &&
78 netif_running(sdata->dev)) { 95 netif_running(sdata->dev)) {
@@ -84,9 +101,9 @@ int __ieee80211_resume(struct ieee80211_hw *hw)
84 } 101 }
85 102
86 /* add STAs back */ 103 /* add STAs back */
87 list_for_each_entry(sta, &local->sta_list, list) { 104 if (local->ops->sta_notify) {
88 105 spin_lock_irqsave(&local->sta_lock, flags);
89 if (local->ops->sta_notify) { 106 list_for_each_entry(sta, &local->sta_list, list) {
90 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) 107 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
91 sdata = container_of(sdata->bss, 108 sdata = container_of(sdata->bss,
92 struct ieee80211_sub_if_data, 109 struct ieee80211_sub_if_data,
@@ -95,8 +112,21 @@ int __ieee80211_resume(struct ieee80211_hw *hw)
95 local->ops->sta_notify(hw, &sdata->vif, 112 local->ops->sta_notify(hw, &sdata->vif,
96 STA_NOTIFY_ADD, &sta->sta); 113 STA_NOTIFY_ADD, &sta->sta);
97 } 114 }
115 spin_unlock_irqrestore(&local->sta_lock, flags);
98 } 116 }
99 117
118 /* Clear Suspend state so that ADDBA requests can be processed */
119
120 rcu_read_lock();
121
122 if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
123 list_for_each_entry_rcu(sta, &local->sta_list, list) {
124 clear_sta_flags(sta, WLAN_STA_SUSPEND);
125 }
126 }
127
128 rcu_read_unlock();
129
100 /* add back keys */ 130 /* add back keys */
101 list_for_each_entry(sdata, &local->interfaces, list) 131 list_for_each_entry(sdata, &local->interfaces, list)
102 if (netif_running(sdata->dev)) 132 if (netif_running(sdata->dev))
@@ -113,5 +143,37 @@ int __ieee80211_resume(struct ieee80211_hw *hw)
113 ieee80211_configure_filter(local); 143 ieee80211_configure_filter(local);
114 netif_addr_unlock_bh(local->mdev); 144 netif_addr_unlock_bh(local->mdev);
115 145
146 /* Finally also reconfigure all the BSS information */
147 list_for_each_entry(sdata, &local->interfaces, list) {
148 u32 changed = ~0;
149 if (!netif_running(sdata->dev))
150 continue;
151 switch (sdata->vif.type) {
152 case NL80211_IFTYPE_STATION:
153 /* disable beacon change bits */
154 changed &= ~IEEE80211_IFCC_BEACON;
155 /* fall through */
156 case NL80211_IFTYPE_ADHOC:
157 case NL80211_IFTYPE_AP:
158 case NL80211_IFTYPE_MESH_POINT:
159 WARN_ON(ieee80211_if_config(sdata, changed));
160 ieee80211_bss_info_change_notify(sdata, ~0);
161 break;
162 case NL80211_IFTYPE_WDS:
163 break;
164 case NL80211_IFTYPE_AP_VLAN:
165 case NL80211_IFTYPE_MONITOR:
166 /* ignore virtual */
167 break;
168 case NL80211_IFTYPE_UNSPECIFIED:
169 case __NL80211_IFTYPE_AFTER_LAST:
170 WARN_ON(1);
171 break;
172 }
173 }
174
175 ieee80211_wake_queues_by_reason(hw,
176 IEEE80211_QUEUE_STOP_REASON_SUSPEND);
177
116 return 0; 178 return 0;
117} 179}
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 3fa7ab285066..4641f00a1e5c 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -219,10 +219,12 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
219 info->control.rates[i].count = 1; 219 info->control.rates[i].count = 1;
220 } 220 }
221 221
222 if (sta && sdata->force_unicast_rateidx > -1) 222 if (sta && sdata->force_unicast_rateidx > -1) {
223 info->control.rates[0].idx = sdata->force_unicast_rateidx; 223 info->control.rates[0].idx = sdata->force_unicast_rateidx;
224 else 224 } else {
225 ref->ops->get_rate(ref->priv, ista, priv_sta, txrc); 225 ref->ops->get_rate(ref->priv, ista, priv_sta, txrc);
226 info->flags |= IEEE80211_TX_INTFL_RCALGO;
227 }
226 228
227 /* 229 /*
228 * try to enforce the maximum rate the user wanted 230 * try to enforce the maximum rate the user wanted
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index b9164c9a9563..2ab5ad9e71ce 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -44,8 +44,10 @@ static inline void rate_control_tx_status(struct ieee80211_local *local,
44 struct rate_control_ref *ref = local->rate_ctrl; 44 struct rate_control_ref *ref = local->rate_ctrl;
45 struct ieee80211_sta *ista = &sta->sta; 45 struct ieee80211_sta *ista = &sta->sta;
46 void *priv_sta = sta->rate_ctrl_priv; 46 void *priv_sta = sta->rate_ctrl_priv;
47 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
47 48
48 ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb); 49 if (likely(info->flags & IEEE80211_TX_INTFL_RCALGO))
50 ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
49} 51}
50 52
51 53
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 66f7ecf51b92..64ebe664effc 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -142,6 +142,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
142 /* IEEE80211_RADIOTAP_FLAGS */ 142 /* IEEE80211_RADIOTAP_FLAGS */
143 if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) 143 if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
144 *pos |= IEEE80211_RADIOTAP_F_FCS; 144 *pos |= IEEE80211_RADIOTAP_F_FCS;
145 if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
146 *pos |= IEEE80211_RADIOTAP_F_BADFCS;
145 if (status->flag & RX_FLAG_SHORTPRE) 147 if (status->flag & RX_FLAG_SHORTPRE)
146 *pos |= IEEE80211_RADIOTAP_F_SHORTPRE; 148 *pos |= IEEE80211_RADIOTAP_F_SHORTPRE;
147 pos++; 149 pos++;
@@ -204,9 +206,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
204 /* ensure 2 byte alignment for the 2 byte field as required */ 206 /* ensure 2 byte alignment for the 2 byte field as required */
205 if ((pos - (unsigned char *)rthdr) & 1) 207 if ((pos - (unsigned char *)rthdr) & 1)
206 pos++; 208 pos++;
207 /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */ 209 if (status->flag & RX_FLAG_FAILED_PLCP_CRC)
208 if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) 210 *(__le16 *)pos |= cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADPLCP);
209 *(__le16 *)pos |= cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
210 pos += 2; 211 pos += 2;
211} 212}
212 213
@@ -849,12 +850,19 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
849 * Mesh beacons will update last_rx when if they are found to 850 * Mesh beacons will update last_rx when if they are found to
850 * match the current local configuration when processed. 851 * match the current local configuration when processed.
851 */ 852 */
852 sta->last_rx = jiffies; 853 if (rx->sdata->vif.type == NL80211_IFTYPE_STATION &&
854 ieee80211_is_beacon(hdr->frame_control)) {
855 rx->sdata->u.mgd.last_beacon = jiffies;
856 } else
857 sta->last_rx = jiffies;
853 } 858 }
854 859
855 if (!(rx->flags & IEEE80211_RX_RA_MATCH)) 860 if (!(rx->flags & IEEE80211_RX_RA_MATCH))
856 return RX_CONTINUE; 861 return RX_CONTINUE;
857 862
863 if (rx->sdata->vif.type == NL80211_IFTYPE_STATION)
864 ieee80211_sta_rx_notify(rx->sdata, hdr);
865
858 sta->rx_fragments++; 866 sta->rx_fragments++;
859 sta->rx_bytes += rx->skb->len; 867 sta->rx_bytes += rx->skb->len;
860 sta->last_signal = rx->status->signal; 868 sta->last_signal = rx->status->signal;
@@ -1876,18 +1884,13 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
1876 if (ieee80211_vif_is_mesh(&sdata->vif)) 1884 if (ieee80211_vif_is_mesh(&sdata->vif))
1877 return ieee80211_mesh_rx_mgmt(sdata, rx->skb, rx->status); 1885 return ieee80211_mesh_rx_mgmt(sdata, rx->skb, rx->status);
1878 1886
1879 if (sdata->vif.type != NL80211_IFTYPE_STATION && 1887 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
1880 sdata->vif.type != NL80211_IFTYPE_ADHOC) 1888 return ieee80211_ibss_rx_mgmt(sdata, rx->skb, rx->status);
1881 return RX_DROP_MONITOR;
1882
1883 1889
1884 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 1890 if (sdata->vif.type == NL80211_IFTYPE_STATION)
1885 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
1886 return RX_DROP_MONITOR;
1887 return ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status); 1891 return ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
1888 }
1889 1892
1890 return ieee80211_ibss_rx_mgmt(sdata, rx->skb, rx->status); 1893 return RX_DROP_MONITOR;
1891} 1894}
1892 1895
1893static void ieee80211_rx_michael_mic_report(struct net_device *dev, 1896static void ieee80211_rx_michael_mic_report(struct net_device *dev,
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 5030a3c87509..3bf9839f5916 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -214,6 +214,66 @@ void ieee80211_scan_failed(struct ieee80211_local *local)
214 local->scan_req = NULL; 214 local->scan_req = NULL;
215} 215}
216 216
217/*
218 * inform AP that we will go to sleep so that it will buffer the frames
219 * while we scan
220 */
221static void ieee80211_scan_ps_enable(struct ieee80211_sub_if_data *sdata)
222{
223 struct ieee80211_local *local = sdata->local;
224 bool ps = false;
225
226 /* FIXME: what to do when local->pspolling is true? */
227
228 del_timer_sync(&local->dynamic_ps_timer);
229 cancel_work_sync(&local->dynamic_ps_enable_work);
230
231 if (local->hw.conf.flags & IEEE80211_CONF_PS) {
232 ps = true;
233 local->hw.conf.flags &= ~IEEE80211_CONF_PS;
234 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
235 }
236
237 if (!ps || !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK))
238 /*
239 * If power save was enabled, no need to send a nullfunc
240 * frame because AP knows that we are sleeping. But if the
241 * hardware is creating the nullfunc frame for power save
242 * status (ie. IEEE80211_HW_PS_NULLFUNC_STACK is not
243 * enabled) and power save was enabled, the firmware just
244 * sent a null frame with power save disabled. So we need
245 * to send a new nullfunc frame to inform the AP that we
246 * are again sleeping.
247 */
248 ieee80211_send_nullfunc(local, sdata, 1);
249}
250
251/* inform AP that we are awake again, unless power save is enabled */
252static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata)
253{
254 struct ieee80211_local *local = sdata->local;
255
256 if (!local->powersave)
257 ieee80211_send_nullfunc(local, sdata, 0);
258 else {
259 /*
260 * In !IEEE80211_HW_PS_NULLFUNC_STACK case the hardware
261 * will send a nullfunc frame with the powersave bit set
262 * even though the AP already knows that we are sleeping.
263 * This could be avoided by sending a null frame with power
264 * save bit disabled before enabling the power save, but
265 * this doesn't gain anything.
266 *
267 * When IEEE80211_HW_PS_NULLFUNC_STACK is enabled, no need
268 * to send a nullfunc frame because AP already knows that
269 * we are sleeping, let's just enable power save mode in
270 * hardware.
271 */
272 local->hw.conf.flags |= IEEE80211_CONF_PS;
273 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
274 }
275}
276
217void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) 277void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
218{ 278{
219 struct ieee80211_local *local = hw_to_local(hw); 279 struct ieee80211_local *local = hw_to_local(hw);
@@ -268,7 +328,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
268 /* Tell AP we're back */ 328 /* Tell AP we're back */
269 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 329 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
270 if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) { 330 if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
271 ieee80211_send_nullfunc(local, sdata, 0); 331 ieee80211_scan_ps_disable(sdata);
272 netif_tx_wake_all_queues(sdata->dev); 332 netif_tx_wake_all_queues(sdata->dev);
273 } 333 }
274 } else 334 } else
@@ -409,6 +469,19 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
409 return 0; 469 return 0;
410 } 470 }
411 471
472 /*
473 * Hardware/driver doesn't support hw_scan, so use software
474 * scanning instead. First send a nullfunc frame with power save
475 * bit on so that AP will buffer the frames for us while we are not
476 * listening, then send probe requests to each channel and wait for
477 * the responses. After all channels are scanned, tune back to the
478 * original channel and send a nullfunc frame with power save bit
479 * off to trigger the AP to send us all the buffered frames.
480 *
481 * Note that while local->sw_scanning is true everything else but
482 * nullfunc frames and probe requests will be dropped in
483 * ieee80211_tx_h_check_assoc().
484 */
412 local->sw_scanning = true; 485 local->sw_scanning = true;
413 if (local->ops->sw_scan_start) 486 if (local->ops->sw_scan_start)
414 local->ops->sw_scan_start(local_to_hw(local)); 487 local->ops->sw_scan_start(local_to_hw(local));
@@ -428,7 +501,7 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
428 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 501 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
429 if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) { 502 if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
430 netif_tx_stop_all_queues(sdata->dev); 503 netif_tx_stop_all_queues(sdata->dev);
431 ieee80211_send_nullfunc(local, sdata, 1); 504 ieee80211_scan_ps_enable(sdata);
432 } 505 }
433 } else 506 } else
434 netif_tx_stop_all_queues(sdata->dev); 507 netif_tx_stop_all_queues(sdata->dev);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 4ba3c540fcf3..c5f14e6bbde2 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -203,17 +203,6 @@ void sta_info_destroy(struct sta_info *sta)
203 if (tid_rx) 203 if (tid_rx)
204 tid_rx->shutdown = true; 204 tid_rx->shutdown = true;
205 205
206 /*
207 * The stop callback cannot find this station any more, but
208 * it didn't complete its work -- start the queue if necessary
209 */
210 if (sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_INITIATOR_MSK &&
211 sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_REQ_STOP_BA_MSK &&
212 local->hw.ampdu_queues)
213 ieee80211_wake_queue_by_reason(&local->hw,
214 local->hw.queues + sta->tid_to_tx_q[i],
215 IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
216
217 spin_unlock_bh(&sta->lock); 206 spin_unlock_bh(&sta->lock);
218 207
219 /* 208 /*
@@ -239,6 +228,11 @@ void sta_info_destroy(struct sta_info *sta)
239 tid_tx = sta->ampdu_mlme.tid_tx[i]; 228 tid_tx = sta->ampdu_mlme.tid_tx[i];
240 if (tid_tx) { 229 if (tid_tx) {
241 del_timer_sync(&tid_tx->addba_resp_timer); 230 del_timer_sync(&tid_tx->addba_resp_timer);
231 /*
232 * STA removed while aggregation session being
233 * started? Bit odd, but purge frames anyway.
234 */
235 skb_queue_purge(&tid_tx->pending);
242 kfree(tid_tx); 236 kfree(tid_tx);
243 } 237 }
244 } 238 }
@@ -287,7 +281,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
287 * enable session_timer's data differentiation. refer to 281 * enable session_timer's data differentiation. refer to
288 * sta_rx_agg_session_timer_expired for useage */ 282 * sta_rx_agg_session_timer_expired for useage */
289 sta->timer_to_tid[i] = i; 283 sta->timer_to_tid[i] = i;
290 sta->tid_to_tx_q[i] = -1;
291 /* rx */ 284 /* rx */
292 sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE; 285 sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
293 sta->ampdu_mlme.tid_rx[i] = NULL; 286 sta->ampdu_mlme.tid_rx[i] = NULL;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 1f45573c580c..5534d489f506 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -35,6 +35,8 @@
35 * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next 35 * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
36 * frame to this station is transmitted. 36 * frame to this station is transmitted.
37 * @WLAN_STA_MFP: Management frame protection is used with this STA. 37 * @WLAN_STA_MFP: Management frame protection is used with this STA.
38 * @WLAN_STA_SUSPEND: Set/cleared during a suspend/resume cycle.
39 * Used to deny ADDBA requests (both TX and RX).
38 */ 40 */
39enum ieee80211_sta_info_flags { 41enum ieee80211_sta_info_flags {
40 WLAN_STA_AUTH = 1<<0, 42 WLAN_STA_AUTH = 1<<0,
@@ -48,6 +50,7 @@ enum ieee80211_sta_info_flags {
48 WLAN_STA_PSPOLL = 1<<8, 50 WLAN_STA_PSPOLL = 1<<8,
49 WLAN_STA_CLEAR_PS_FILT = 1<<9, 51 WLAN_STA_CLEAR_PS_FILT = 1<<9,
50 WLAN_STA_MFP = 1<<10, 52 WLAN_STA_MFP = 1<<10,
53 WLAN_STA_SUSPEND = 1<<11
51}; 54};
52 55
53#define STA_TID_NUM 16 56#define STA_TID_NUM 16
@@ -70,11 +73,13 @@ enum ieee80211_sta_info_flags {
70 * struct tid_ampdu_tx - TID aggregation information (Tx). 73 * struct tid_ampdu_tx - TID aggregation information (Tx).
71 * 74 *
72 * @addba_resp_timer: timer for peer's response to addba request 75 * @addba_resp_timer: timer for peer's response to addba request
76 * @pending: pending frames queue -- use sta's spinlock to protect
73 * @ssn: Starting Sequence Number expected to be aggregated. 77 * @ssn: Starting Sequence Number expected to be aggregated.
74 * @dialog_token: dialog token for aggregation session 78 * @dialog_token: dialog token for aggregation session
75 */ 79 */
76struct tid_ampdu_tx { 80struct tid_ampdu_tx {
77 struct timer_list addba_resp_timer; 81 struct timer_list addba_resp_timer;
82 struct sk_buff_head pending;
78 u16 ssn; 83 u16 ssn;
79 u8 dialog_token; 84 u8 dialog_token;
80}; 85};
@@ -201,7 +206,6 @@ struct sta_ampdu_mlme {
201 * @tid_seq: per-TID sequence numbers for sending to this STA 206 * @tid_seq: per-TID sequence numbers for sending to this STA
202 * @ampdu_mlme: A-MPDU state machine state 207 * @ampdu_mlme: A-MPDU state machine state
203 * @timer_to_tid: identity mapping to ID timers 208 * @timer_to_tid: identity mapping to ID timers
204 * @tid_to_tx_q: map tid to tx queue (invalid == negative values)
205 * @llid: Local link ID 209 * @llid: Local link ID
206 * @plid: Peer link ID 210 * @plid: Peer link ID
207 * @reason: Cancel reason on PLINK_HOLDING state 211 * @reason: Cancel reason on PLINK_HOLDING state
@@ -276,7 +280,6 @@ struct sta_info {
276 */ 280 */
277 struct sta_ampdu_mlme ampdu_mlme; 281 struct sta_ampdu_mlme ampdu_mlme;
278 u8 timer_to_tid[STA_TID_NUM]; 282 u8 timer_to_tid[STA_TID_NUM];
279 s8 tid_to_tx_q[STA_TID_NUM];
280 283
281#ifdef CONFIG_MAC80211_MESH 284#ifdef CONFIG_MAC80211_MESH
282 /* 285 /*
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 457238a2f3fc..3fb04a86444d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -34,8 +34,7 @@
34 34
35#define IEEE80211_TX_OK 0 35#define IEEE80211_TX_OK 0
36#define IEEE80211_TX_AGAIN 1 36#define IEEE80211_TX_AGAIN 1
37#define IEEE80211_TX_FRAG_AGAIN 2 37#define IEEE80211_TX_PENDING 2
38#define IEEE80211_TX_PENDING 3
39 38
40/* misc utils */ 39/* misc utils */
41 40
@@ -193,7 +192,19 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
193 return TX_CONTINUE; 192 return TX_CONTINUE;
194 193
195 if (unlikely(tx->local->sw_scanning) && 194 if (unlikely(tx->local->sw_scanning) &&
196 !ieee80211_is_probe_req(hdr->frame_control)) 195 !ieee80211_is_probe_req(hdr->frame_control) &&
196 !ieee80211_is_nullfunc(hdr->frame_control))
197 /*
198 * When software scanning only nullfunc frames (to notify
199 * the sleep state to the AP) and probe requests (for the
200 * active scan) are allowed, all other frames should not be
201 * sent and we should not get here, but if we do
202 * nonetheless, drop them to avoid sending them
203 * off-channel. See the link below and
204 * ieee80211_start_scan() for more.
205 *
206 * http://article.gmane.org/gmane.linux.kernel.wireless.general/30089
207 */
197 return TX_DROP; 208 return TX_DROP;
198 209
199 if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 210 if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
@@ -690,17 +701,62 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
690 return TX_CONTINUE; 701 return TX_CONTINUE;
691} 702}
692 703
704static int ieee80211_fragment(struct ieee80211_local *local,
705 struct sk_buff *skb, int hdrlen,
706 int frag_threshold)
707{
708 struct sk_buff *tail = skb, *tmp;
709 int per_fragm = frag_threshold - hdrlen - FCS_LEN;
710 int pos = hdrlen + per_fragm;
711 int rem = skb->len - hdrlen - per_fragm;
712
713 if (WARN_ON(rem < 0))
714 return -EINVAL;
715
716 while (rem) {
717 int fraglen = per_fragm;
718
719 if (fraglen > rem)
720 fraglen = rem;
721 rem -= fraglen;
722 tmp = dev_alloc_skb(local->tx_headroom +
723 frag_threshold +
724 IEEE80211_ENCRYPT_HEADROOM +
725 IEEE80211_ENCRYPT_TAILROOM);
726 if (!tmp)
727 return -ENOMEM;
728 tail->next = tmp;
729 tail = tmp;
730 skb_reserve(tmp, local->tx_headroom +
731 IEEE80211_ENCRYPT_HEADROOM);
732 /* copy control information */
733 memcpy(tmp->cb, skb->cb, sizeof(tmp->cb));
734 skb_copy_queue_mapping(tmp, skb);
735 tmp->priority = skb->priority;
736 tmp->do_not_encrypt = skb->do_not_encrypt;
737 tmp->dev = skb->dev;
738 tmp->iif = skb->iif;
739
740 /* copy header and data */
741 memcpy(skb_put(tmp, hdrlen), skb->data, hdrlen);
742 memcpy(skb_put(tmp, fraglen), skb->data + pos, fraglen);
743
744 pos += fraglen;
745 }
746
747 skb->len = hdrlen + per_fragm;
748 return 0;
749}
750
693static ieee80211_tx_result debug_noinline 751static ieee80211_tx_result debug_noinline
694ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) 752ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
695{ 753{
696 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); 754 struct sk_buff *skb = tx->skb;
697 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; 755 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
698 size_t hdrlen, per_fragm, num_fragm, payload_len, left; 756 struct ieee80211_hdr *hdr = (void *)skb->data;
699 struct sk_buff **frags, *first, *frag;
700 int i;
701 u16 seq;
702 u8 *pos;
703 int frag_threshold = tx->local->fragmentation_threshold; 757 int frag_threshold = tx->local->fragmentation_threshold;
758 int hdrlen;
759 int fragnum;
704 760
705 if (!(tx->flags & IEEE80211_TX_FRAGMENTED)) 761 if (!(tx->flags & IEEE80211_TX_FRAGMENTED))
706 return TX_CONTINUE; 762 return TX_CONTINUE;
@@ -713,58 +769,35 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
713 if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU)) 769 if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU))
714 return TX_DROP; 770 return TX_DROP;
715 771
716 first = tx->skb;
717
718 hdrlen = ieee80211_hdrlen(hdr->frame_control); 772 hdrlen = ieee80211_hdrlen(hdr->frame_control);
719 payload_len = first->len - hdrlen;
720 per_fragm = frag_threshold - hdrlen - FCS_LEN;
721 num_fragm = DIV_ROUND_UP(payload_len, per_fragm);
722
723 frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
724 if (!frags)
725 goto fail;
726
727 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
728 seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ;
729 pos = first->data + hdrlen + per_fragm;
730 left = payload_len - per_fragm;
731 for (i = 0; i < num_fragm - 1; i++) {
732 struct ieee80211_hdr *fhdr;
733 size_t copylen;
734
735 if (left <= 0)
736 goto fail;
737 773
738 /* reserve enough extra head and tail room for possible 774 /* internal error, why is TX_FRAGMENTED set? */
739 * encryption */ 775 if (WARN_ON(skb->len <= frag_threshold))
740 frag = frags[i] = 776 return TX_DROP;
741 dev_alloc_skb(tx->local->tx_headroom +
742 frag_threshold +
743 IEEE80211_ENCRYPT_HEADROOM +
744 IEEE80211_ENCRYPT_TAILROOM);
745 if (!frag)
746 goto fail;
747
748 /* Make sure that all fragments use the same priority so
749 * that they end up using the same TX queue */
750 frag->priority = first->priority;
751 777
752 skb_reserve(frag, tx->local->tx_headroom + 778 /*
753 IEEE80211_ENCRYPT_HEADROOM); 779 * Now fragment the frame. This will allocate all the fragments and
780 * chain them (using skb as the first fragment) to skb->next.
781 * During transmission, we will remove the successfully transmitted
782 * fragments from this list. When the low-level driver rejects one
783 * of the fragments then we will simply pretend to accept the skb
784 * but store it away as pending.
785 */
786 if (ieee80211_fragment(tx->local, skb, hdrlen, frag_threshold))
787 return TX_DROP;
754 788
755 /* copy TX information */ 789 /* update duration/seq/flags of fragments */
756 info = IEEE80211_SKB_CB(frag); 790 fragnum = 0;
757 memcpy(info, first->cb, sizeof(frag->cb)); 791 do {
792 int next_len;
793 const __le16 morefrags = cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
758 794
759 /* copy/fill in 802.11 header */ 795 hdr = (void *)skb->data;
760 fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen); 796 info = IEEE80211_SKB_CB(skb);
761 memcpy(fhdr, first->data, hdrlen);
762 fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
763 797
764 if (i == num_fragm - 2) { 798 if (skb->next) {
765 /* clear MOREFRAGS bit for the last fragment */ 799 hdr->frame_control |= morefrags;
766 fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); 800 next_len = skb->next->len;
767 } else {
768 /* 801 /*
769 * No multi-rate retries for fragmented frames, that 802 * No multi-rate retries for fragmented frames, that
770 * would completely throw off the NAV at other STAs. 803 * would completely throw off the NAV at other STAs.
@@ -775,37 +808,16 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
775 info->control.rates[4].idx = -1; 808 info->control.rates[4].idx = -1;
776 BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5); 809 BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5);
777 info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; 810 info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
811 } else {
812 hdr->frame_control &= ~morefrags;
813 next_len = 0;
778 } 814 }
779 815 hdr->duration_id = ieee80211_duration(tx, 0, next_len);
780 /* copy data */ 816 hdr->seq_ctrl |= cpu_to_le16(fragnum & IEEE80211_SCTL_FRAG);
781 copylen = left > per_fragm ? per_fragm : left; 817 fragnum++;
782 memcpy(skb_put(frag, copylen), pos, copylen); 818 } while ((skb = skb->next));
783
784 skb_copy_queue_mapping(frag, first);
785
786 frag->do_not_encrypt = first->do_not_encrypt;
787 frag->dev = first->dev;
788 frag->iif = first->iif;
789
790 pos += copylen;
791 left -= copylen;
792 }
793 skb_trim(first, hdrlen + per_fragm);
794
795 tx->num_extra_frag = num_fragm - 1;
796 tx->extra_frag = frags;
797 819
798 return TX_CONTINUE; 820 return TX_CONTINUE;
799
800 fail:
801 if (frags) {
802 for (i = 0; i < num_fragm - 1; i++)
803 if (frags[i])
804 dev_kfree_skb(frags[i]);
805 kfree(frags);
806 }
807 I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
808 return TX_DROP;
809} 821}
810 822
811static ieee80211_tx_result debug_noinline 823static ieee80211_tx_result debug_noinline
@@ -833,27 +845,19 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
833static ieee80211_tx_result debug_noinline 845static ieee80211_tx_result debug_noinline
834ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx) 846ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)
835{ 847{
836 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; 848 struct sk_buff *skb = tx->skb;
837 int next_len, i; 849 struct ieee80211_hdr *hdr;
838 int group_addr = is_multicast_ether_addr(hdr->addr1); 850 int next_len;
839 851 bool group_addr;
840 if (!(tx->flags & IEEE80211_TX_FRAGMENTED)) {
841 hdr->duration_id = ieee80211_duration(tx, group_addr, 0);
842 return TX_CONTINUE;
843 }
844 852
845 hdr->duration_id = ieee80211_duration(tx, group_addr, 853 do {
846 tx->extra_frag[0]->len); 854 hdr = (void *) skb->data;
855 next_len = skb->next ? skb->next->len : 0;
856 group_addr = is_multicast_ether_addr(hdr->addr1);
847 857
848 for (i = 0; i < tx->num_extra_frag; i++) { 858 hdr->duration_id =
849 if (i + 1 < tx->num_extra_frag) 859 ieee80211_duration(tx, group_addr, next_len);
850 next_len = tx->extra_frag[i + 1]->len; 860 } while ((skb = skb->next));
851 else
852 next_len = 0;
853
854 hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data;
855 hdr->duration_id = ieee80211_duration(tx, 0, next_len);
856 }
857 861
858 return TX_CONTINUE; 862 return TX_CONTINUE;
859} 863}
@@ -861,19 +865,16 @@ ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)
861static ieee80211_tx_result debug_noinline 865static ieee80211_tx_result debug_noinline
862ieee80211_tx_h_stats(struct ieee80211_tx_data *tx) 866ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
863{ 867{
864 int i; 868 struct sk_buff *skb = tx->skb;
865 869
866 if (!tx->sta) 870 if (!tx->sta)
867 return TX_CONTINUE; 871 return TX_CONTINUE;
868 872
869 tx->sta->tx_packets++; 873 tx->sta->tx_packets++;
870 tx->sta->tx_fragments++; 874 do {
871 tx->sta->tx_bytes += tx->skb->len; 875 tx->sta->tx_fragments++;
872 if (tx->extra_frag) { 876 tx->sta->tx_bytes += skb->len;
873 tx->sta->tx_fragments += tx->num_extra_frag; 877 } while ((skb = skb->next));
874 for (i = 0; i < tx->num_extra_frag; i++)
875 tx->sta->tx_bytes += tx->extra_frag[i]->len;
876 }
877 878
878 return TX_CONTINUE; 879 return TX_CONTINUE;
879} 880}
@@ -983,9 +984,9 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
983 struct ieee80211_hdr *hdr; 984 struct ieee80211_hdr *hdr;
984 struct ieee80211_sub_if_data *sdata; 985 struct ieee80211_sub_if_data *sdata;
985 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 986 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
986
987 int hdrlen, tid; 987 int hdrlen, tid;
988 u8 *qc, *state; 988 u8 *qc, *state;
989 bool queued = false;
989 990
990 memset(tx, 0, sizeof(*tx)); 991 memset(tx, 0, sizeof(*tx));
991 tx->skb = skb; 992 tx->skb = skb;
@@ -1012,25 +1013,53 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
1012 */ 1013 */
1013 } 1014 }
1014 1015
1016 /*
1017 * If this flag is set to true anywhere, and we get here,
1018 * we are doing the needed processing, so remove the flag
1019 * now.
1020 */
1021 info->flags &= ~IEEE80211_TX_INTFL_NEED_TXPROCESSING;
1022
1015 hdr = (struct ieee80211_hdr *) skb->data; 1023 hdr = (struct ieee80211_hdr *) skb->data;
1016 1024
1017 tx->sta = sta_info_get(local, hdr->addr1); 1025 tx->sta = sta_info_get(local, hdr->addr1);
1018 1026
1019 if (tx->sta && ieee80211_is_data_qos(hdr->frame_control)) { 1027 if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
1028 (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)) {
1020 unsigned long flags; 1029 unsigned long flags;
1030 struct tid_ampdu_tx *tid_tx;
1031
1021 qc = ieee80211_get_qos_ctl(hdr); 1032 qc = ieee80211_get_qos_ctl(hdr);
1022 tid = *qc & IEEE80211_QOS_CTL_TID_MASK; 1033 tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
1023 1034
1024 spin_lock_irqsave(&tx->sta->lock, flags); 1035 spin_lock_irqsave(&tx->sta->lock, flags);
1036 /*
1037 * XXX: This spinlock could be fairly expensive, but see the
1038 * comment in agg-tx.c:ieee80211_agg_tx_operational().
1039 * One way to solve this would be to do something RCU-like
1040 * for managing the tid_tx struct and using atomic bitops
1041 * for the actual state -- by introducing an actual
1042 * 'operational' bit that would be possible. It would
1043 * require changing ieee80211_agg_tx_operational() to
1044 * set that bit, and changing the way tid_tx is managed
1045 * everywhere, including races between that bit and
1046 * tid_tx going away (tid_tx being added can be easily
1047 * committed to memory before the 'operational' bit).
1048 */
1049 tid_tx = tx->sta->ampdu_mlme.tid_tx[tid];
1025 state = &tx->sta->ampdu_mlme.tid_state_tx[tid]; 1050 state = &tx->sta->ampdu_mlme.tid_state_tx[tid];
1026 if (*state == HT_AGG_STATE_OPERATIONAL) { 1051 if (*state == HT_AGG_STATE_OPERATIONAL) {
1027 info->flags |= IEEE80211_TX_CTL_AMPDU; 1052 info->flags |= IEEE80211_TX_CTL_AMPDU;
1028 if (local->hw.ampdu_queues) 1053 } else if (*state != HT_AGG_STATE_IDLE) {
1029 skb_set_queue_mapping( 1054 /* in progress */
1030 skb, tx->local->hw.queues + 1055 queued = true;
1031 tx->sta->tid_to_tx_q[tid]); 1056 info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
1057 __skb_queue_tail(&tid_tx->pending, skb);
1032 } 1058 }
1033 spin_unlock_irqrestore(&tx->sta->lock, flags); 1059 spin_unlock_irqrestore(&tx->sta->lock, flags);
1060
1061 if (unlikely(queued))
1062 return TX_QUEUED;
1034 } 1063 }
1035 1064
1036 if (is_multicast_ether_addr(hdr->addr1)) { 1065 if (is_multicast_ether_addr(hdr->addr1)) {
@@ -1081,51 +1110,55 @@ static int ieee80211_tx_prepare(struct ieee80211_local *local,
1081 } 1110 }
1082 if (unlikely(!dev)) 1111 if (unlikely(!dev))
1083 return -ENODEV; 1112 return -ENODEV;
1084 /* initialises tx with control */ 1113 /*
1114 * initialises tx with control
1115 *
1116 * return value is safe to ignore here because this function
1117 * can only be invoked for multicast frames
1118 *
1119 * XXX: clean up
1120 */
1085 __ieee80211_tx_prepare(tx, skb, dev); 1121 __ieee80211_tx_prepare(tx, skb, dev);
1086 dev_put(dev); 1122 dev_put(dev);
1087 return 0; 1123 return 0;
1088} 1124}
1089 1125
1090static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, 1126static int __ieee80211_tx(struct ieee80211_local *local,
1091 struct ieee80211_tx_data *tx) 1127 struct sk_buff **skbp,
1128 struct sta_info *sta)
1092{ 1129{
1130 struct sk_buff *skb = *skbp, *next;
1093 struct ieee80211_tx_info *info; 1131 struct ieee80211_tx_info *info;
1094 int ret, i; 1132 int ret, len;
1133 bool fragm = false;
1095 1134
1096 if (skb) { 1135 local->mdev->trans_start = jiffies;
1136
1137 while (skb) {
1097 if (ieee80211_queue_stopped(&local->hw, 1138 if (ieee80211_queue_stopped(&local->hw,
1098 skb_get_queue_mapping(skb))) 1139 skb_get_queue_mapping(skb)))
1099 return IEEE80211_TX_PENDING; 1140 return IEEE80211_TX_PENDING;
1100 1141
1101 ret = local->ops->tx(local_to_hw(local), skb); 1142 info = IEEE80211_SKB_CB(skb);
1102 if (ret) 1143
1103 return IEEE80211_TX_AGAIN; 1144 if (fragm)
1104 local->mdev->trans_start = jiffies;
1105 ieee80211_led_tx(local, 1);
1106 }
1107 if (tx->extra_frag) {
1108 for (i = 0; i < tx->num_extra_frag; i++) {
1109 if (!tx->extra_frag[i])
1110 continue;
1111 info = IEEE80211_SKB_CB(tx->extra_frag[i]);
1112 info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT | 1145 info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
1113 IEEE80211_TX_CTL_FIRST_FRAGMENT); 1146 IEEE80211_TX_CTL_FIRST_FRAGMENT);
1114 if (ieee80211_queue_stopped(&local->hw, 1147
1115 skb_get_queue_mapping(tx->extra_frag[i]))) 1148 next = skb->next;
1116 return IEEE80211_TX_FRAG_AGAIN; 1149 len = skb->len;
1117 1150 ret = local->ops->tx(local_to_hw(local), skb);
1118 ret = local->ops->tx(local_to_hw(local), 1151 if (WARN_ON(ret != NETDEV_TX_OK && skb->len != len)) {
1119 tx->extra_frag[i]); 1152 dev_kfree_skb(skb);
1120 if (ret) 1153 ret = NETDEV_TX_OK;
1121 return IEEE80211_TX_FRAG_AGAIN;
1122 local->mdev->trans_start = jiffies;
1123 ieee80211_led_tx(local, 1);
1124 tx->extra_frag[i] = NULL;
1125 } 1154 }
1126 kfree(tx->extra_frag); 1155 if (ret != NETDEV_TX_OK)
1127 tx->extra_frag = NULL; 1156 return IEEE80211_TX_AGAIN;
1157 *skbp = skb = next;
1158 ieee80211_led_tx(local, 1);
1159 fragm = true;
1128 } 1160 }
1161
1129 return IEEE80211_TX_OK; 1162 return IEEE80211_TX_OK;
1130} 1163}
1131 1164
@@ -1137,7 +1170,6 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
1137{ 1170{
1138 struct sk_buff *skb = tx->skb; 1171 struct sk_buff *skb = tx->skb;
1139 ieee80211_tx_result res = TX_DROP; 1172 ieee80211_tx_result res = TX_DROP;
1140 int i;
1141 1173
1142#define CALL_TXH(txh) \ 1174#define CALL_TXH(txh) \
1143 res = txh(tx); \ 1175 res = txh(tx); \
@@ -1161,11 +1193,13 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
1161 txh_done: 1193 txh_done:
1162 if (unlikely(res == TX_DROP)) { 1194 if (unlikely(res == TX_DROP)) {
1163 I802_DEBUG_INC(tx->local->tx_handlers_drop); 1195 I802_DEBUG_INC(tx->local->tx_handlers_drop);
1164 dev_kfree_skb(skb); 1196 while (skb) {
1165 for (i = 0; i < tx->num_extra_frag; i++) 1197 struct sk_buff *next;
1166 if (tx->extra_frag[i]) 1198
1167 dev_kfree_skb(tx->extra_frag[i]); 1199 next = skb->next;
1168 kfree(tx->extra_frag); 1200 dev_kfree_skb(skb);
1201 skb = next;
1202 }
1169 return -1; 1203 return -1;
1170 } else if (unlikely(res == TX_QUEUED)) { 1204 } else if (unlikely(res == TX_QUEUED)) {
1171 I802_DEBUG_INC(tx->local->tx_handlers_queued); 1205 I802_DEBUG_INC(tx->local->tx_handlers_queued);
@@ -1175,23 +1209,26 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
1175 return 0; 1209 return 0;
1176} 1210}
1177 1211
1178static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb) 1212static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
1213 bool txpending)
1179{ 1214{
1180 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1215 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1181 struct sta_info *sta; 1216 struct sta_info *sta;
1182 struct ieee80211_tx_data tx; 1217 struct ieee80211_tx_data tx;
1183 ieee80211_tx_result res_prepare; 1218 ieee80211_tx_result res_prepare;
1184 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1219 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1185 int ret, i; 1220 struct sk_buff *next;
1221 unsigned long flags;
1222 int ret, retries;
1186 u16 queue; 1223 u16 queue;
1187 1224
1188 queue = skb_get_queue_mapping(skb); 1225 queue = skb_get_queue_mapping(skb);
1189 1226
1190 WARN_ON(test_bit(queue, local->queues_pending)); 1227 WARN_ON(!txpending && !skb_queue_empty(&local->pending[queue]));
1191 1228
1192 if (unlikely(skb->len < 10)) { 1229 if (unlikely(skb->len < 10)) {
1193 dev_kfree_skb(skb); 1230 dev_kfree_skb(skb);
1194 return 0; 1231 return;
1195 } 1232 }
1196 1233
1197 rcu_read_lock(); 1234 rcu_read_lock();
@@ -1199,10 +1236,13 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
1199 /* initialises tx */ 1236 /* initialises tx */
1200 res_prepare = __ieee80211_tx_prepare(&tx, skb, dev); 1237 res_prepare = __ieee80211_tx_prepare(&tx, skb, dev);
1201 1238
1202 if (res_prepare == TX_DROP) { 1239 if (unlikely(res_prepare == TX_DROP)) {
1203 dev_kfree_skb(skb); 1240 dev_kfree_skb(skb);
1204 rcu_read_unlock(); 1241 rcu_read_unlock();
1205 return 0; 1242 return;
1243 } else if (unlikely(res_prepare == TX_QUEUED)) {
1244 rcu_read_unlock();
1245 return;
1206 } 1246 }
1207 1247
1208 sta = tx.sta; 1248 sta = tx.sta;
@@ -1212,59 +1252,71 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
1212 if (invoke_tx_handlers(&tx)) 1252 if (invoke_tx_handlers(&tx))
1213 goto out; 1253 goto out;
1214 1254
1215retry: 1255 retries = 0;
1216 ret = __ieee80211_tx(local, skb, &tx); 1256 retry:
1217 if (ret) { 1257 ret = __ieee80211_tx(local, &tx.skb, tx.sta);
1218 struct ieee80211_tx_stored_packet *store; 1258 switch (ret) {
1219 1259 case IEEE80211_TX_OK:
1260 break;
1261 case IEEE80211_TX_AGAIN:
1220 /* 1262 /*
1221 * Since there are no fragmented frames on A-MPDU 1263 * Since there are no fragmented frames on A-MPDU
1222 * queues, there's no reason for a driver to reject 1264 * queues, there's no reason for a driver to reject
1223 * a frame there, warn and drop it. 1265 * a frame there, warn and drop it.
1224 */ 1266 */
1225 if (ret != IEEE80211_TX_PENDING) 1267 if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU))
1226 if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU)) 1268 goto drop;
1227 goto drop; 1269 /* fall through */
1270 case IEEE80211_TX_PENDING:
1271 skb = tx.skb;
1272
1273 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
1274
1275 if (__netif_subqueue_stopped(local->mdev, queue)) {
1276 do {
1277 next = skb->next;
1278 skb->next = NULL;
1279 if (unlikely(txpending))
1280 skb_queue_head(&local->pending[queue],
1281 skb);
1282 else
1283 skb_queue_tail(&local->pending[queue],
1284 skb);
1285 } while ((skb = next));
1228 1286
1229 store = &local->pending_packet[queue]; 1287 /*
1288 * Make sure nobody will enable the queue on us
1289 * (without going through the tasklet) nor disable the
1290 * netdev queue underneath the pending handling code.
1291 */
1292 __set_bit(IEEE80211_QUEUE_STOP_REASON_PENDING,
1293 &local->queue_stop_reasons[queue]);
1230 1294
1231 if (ret == IEEE80211_TX_FRAG_AGAIN) 1295 spin_unlock_irqrestore(&local->queue_stop_reason_lock,
1232 skb = NULL; 1296 flags);
1297 } else {
1298 spin_unlock_irqrestore(&local->queue_stop_reason_lock,
1299 flags);
1233 1300
1234 set_bit(queue, local->queues_pending); 1301 retries++;
1235 smp_mb(); 1302 if (WARN(retries > 10, "tx refused but queue active"))
1236 /* 1303 goto drop;
1237 * When the driver gets out of buffers during sending of
1238 * fragments and calls ieee80211_stop_queue, the netif
1239 * subqueue is stopped. There is, however, a small window
1240 * in which the PENDING bit is not yet set. If a buffer
1241 * gets available in that window (i.e. driver calls
1242 * ieee80211_wake_queue), we would end up with ieee80211_tx
1243 * called with the PENDING bit still set. Prevent this by
1244 * continuing transmitting here when that situation is
1245 * possible to have happened.
1246 */
1247 if (!__netif_subqueue_stopped(local->mdev, queue)) {
1248 clear_bit(queue, local->queues_pending);
1249 goto retry; 1304 goto retry;
1250 } 1305 }
1251 store->skb = skb;
1252 store->extra_frag = tx.extra_frag;
1253 store->num_extra_frag = tx.num_extra_frag;
1254 } 1306 }
1255 out: 1307 out:
1256 rcu_read_unlock(); 1308 rcu_read_unlock();
1257 return 0; 1309 return;
1258 1310
1259 drop: 1311 drop:
1260 if (skb)
1261 dev_kfree_skb(skb);
1262 for (i = 0; i < tx.num_extra_frag; i++)
1263 if (tx.extra_frag[i])
1264 dev_kfree_skb(tx.extra_frag[i]);
1265 kfree(tx.extra_frag);
1266 rcu_read_unlock(); 1312 rcu_read_unlock();
1267 return 0; 1313
1314 skb = tx.skb;
1315 while (skb) {
1316 next = skb->next;
1317 dev_kfree_skb(skb);
1318 skb = next;
1319 }
1268} 1320}
1269 1321
1270/* device xmit handlers */ 1322/* device xmit handlers */
@@ -1323,7 +1375,6 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
1323 FOUND_SDATA, 1375 FOUND_SDATA,
1324 UNKNOWN_ADDRESS, 1376 UNKNOWN_ADDRESS,
1325 } monitor_iface = NOT_MONITOR; 1377 } monitor_iface = NOT_MONITOR;
1326 int ret;
1327 1378
1328 if (skb->iif) 1379 if (skb->iif)
1329 odev = dev_get_by_index(&init_net, skb->iif); 1380 odev = dev_get_by_index(&init_net, skb->iif);
@@ -1337,7 +1388,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
1337 "originating device\n", dev->name); 1388 "originating device\n", dev->name);
1338#endif 1389#endif
1339 dev_kfree_skb(skb); 1390 dev_kfree_skb(skb);
1340 return 0; 1391 return NETDEV_TX_OK;
1341 } 1392 }
1342 1393
1343 if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) && 1394 if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
@@ -1366,7 +1417,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
1366 else 1417 else
1367 if (mesh_nexthop_lookup(skb, osdata)) { 1418 if (mesh_nexthop_lookup(skb, osdata)) {
1368 dev_put(odev); 1419 dev_put(odev);
1369 return 0; 1420 return NETDEV_TX_OK;
1370 } 1421 }
1371 if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0) 1422 if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
1372 IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh, 1423 IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
@@ -1428,7 +1479,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
1428 if (ieee80211_skb_resize(osdata->local, skb, headroom, may_encrypt)) { 1479 if (ieee80211_skb_resize(osdata->local, skb, headroom, may_encrypt)) {
1429 dev_kfree_skb(skb); 1480 dev_kfree_skb(skb);
1430 dev_put(odev); 1481 dev_put(odev);
1431 return 0; 1482 return NETDEV_TX_OK;
1432 } 1483 }
1433 1484
1434 if (osdata->vif.type == NL80211_IFTYPE_AP_VLAN) 1485 if (osdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -1437,10 +1488,11 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
1437 u.ap); 1488 u.ap);
1438 if (likely(monitor_iface != UNKNOWN_ADDRESS)) 1489 if (likely(monitor_iface != UNKNOWN_ADDRESS))
1439 info->control.vif = &osdata->vif; 1490 info->control.vif = &osdata->vif;
1440 ret = ieee80211_tx(odev, skb); 1491
1492 ieee80211_tx(odev, skb, false);
1441 dev_put(odev); 1493 dev_put(odev);
1442 1494
1443 return ret; 1495 return NETDEV_TX_OK;
1444} 1496}
1445 1497
1446int ieee80211_monitor_start_xmit(struct sk_buff *skb, 1498int ieee80211_monitor_start_xmit(struct sk_buff *skb,
@@ -1666,8 +1718,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
1666 } 1718 }
1667 1719
1668 /* receiver and we are QoS enabled, use a QoS type frame */ 1720 /* receiver and we are QoS enabled, use a QoS type frame */
1669 if (sta_flags & WLAN_STA_WME && 1721 if ((sta_flags & WLAN_STA_WME) && local->hw.queues >= 4) {
1670 ieee80211_num_regular_queues(&local->hw) >= 4) {
1671 fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA); 1722 fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
1672 hdrlen += 2; 1723 hdrlen += 2;
1673 } 1724 }
@@ -1799,19 +1850,58 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
1799 */ 1850 */
1800void ieee80211_clear_tx_pending(struct ieee80211_local *local) 1851void ieee80211_clear_tx_pending(struct ieee80211_local *local)
1801{ 1852{
1802 int i, j; 1853 int i;
1803 struct ieee80211_tx_stored_packet *store;
1804 1854
1805 for (i = 0; i < ieee80211_num_regular_queues(&local->hw); i++) { 1855 for (i = 0; i < local->hw.queues; i++)
1806 if (!test_bit(i, local->queues_pending)) 1856 skb_queue_purge(&local->pending[i]);
1807 continue; 1857}
1808 store = &local->pending_packet[i]; 1858
1809 kfree_skb(store->skb); 1859static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
1810 for (j = 0; j < store->num_extra_frag; j++) 1860 struct sk_buff *skb)
1811 kfree_skb(store->extra_frag[j]); 1861{
1812 kfree(store->extra_frag); 1862 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1813 clear_bit(i, local->queues_pending); 1863 struct ieee80211_sub_if_data *sdata;
1864 struct sta_info *sta;
1865 struct ieee80211_hdr *hdr;
1866 struct net_device *dev;
1867 int ret;
1868 bool result = true;
1869
1870 /* does interface still exist? */
1871 dev = dev_get_by_index(&init_net, skb->iif);
1872 if (!dev) {
1873 dev_kfree_skb(skb);
1874 return true;
1814 } 1875 }
1876
1877 /* validate info->control.vif against skb->iif */
1878 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1879 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
1880 sdata = container_of(sdata->bss,
1881 struct ieee80211_sub_if_data,
1882 u.ap);
1883
1884 if (unlikely(info->control.vif && info->control.vif != &sdata->vif)) {
1885 dev_kfree_skb(skb);
1886 result = true;
1887 goto out;
1888 }
1889
1890 if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) {
1891 ieee80211_tx(dev, skb, true);
1892 } else {
1893 hdr = (struct ieee80211_hdr *)skb->data;
1894 sta = sta_info_get(local, hdr->addr1);
1895
1896 ret = __ieee80211_tx(local, &skb, sta);
1897 if (ret != IEEE80211_TX_OK)
1898 result = false;
1899 }
1900
1901 out:
1902 dev_put(dev);
1903
1904 return result;
1815} 1905}
1816 1906
1817/* 1907/*
@@ -1822,40 +1912,53 @@ void ieee80211_tx_pending(unsigned long data)
1822{ 1912{
1823 struct ieee80211_local *local = (struct ieee80211_local *)data; 1913 struct ieee80211_local *local = (struct ieee80211_local *)data;
1824 struct net_device *dev = local->mdev; 1914 struct net_device *dev = local->mdev;
1825 struct ieee80211_tx_stored_packet *store; 1915 unsigned long flags;
1826 struct ieee80211_tx_data tx; 1916 int i;
1827 int i, ret; 1917 bool next;
1828 1918
1919 rcu_read_lock();
1829 netif_tx_lock_bh(dev); 1920 netif_tx_lock_bh(dev);
1830 for (i = 0; i < ieee80211_num_regular_queues(&local->hw); i++) {
1831 /* Check that this queue is ok */
1832 if (__netif_subqueue_stopped(local->mdev, i) &&
1833 !test_bit(i, local->queues_pending_run))
1834 continue;
1835 1921
1836 if (!test_bit(i, local->queues_pending)) { 1922 for (i = 0; i < local->hw.queues; i++) {
1837 clear_bit(i, local->queues_pending_run); 1923 /*
1838 ieee80211_wake_queue(&local->hw, i); 1924 * If queue is stopped by something other than due to pending
1925 * frames, or we have no pending frames, proceed to next queue.
1926 */
1927 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
1928 next = false;
1929 if (local->queue_stop_reasons[i] !=
1930 BIT(IEEE80211_QUEUE_STOP_REASON_PENDING) ||
1931 skb_queue_empty(&local->pending[i]))
1932 next = true;
1933 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
1934
1935 if (next)
1839 continue; 1936 continue;
1840 }
1841 1937
1842 clear_bit(i, local->queues_pending_run); 1938 /*
1939 * start the queue now to allow processing our packets,
1940 * we're under the tx lock here anyway so nothing will
1941 * happen as a result of this
1942 */
1843 netif_start_subqueue(local->mdev, i); 1943 netif_start_subqueue(local->mdev, i);
1844 1944
1845 store = &local->pending_packet[i]; 1945 while (!skb_queue_empty(&local->pending[i])) {
1846 tx.extra_frag = store->extra_frag; 1946 struct sk_buff *skb = skb_dequeue(&local->pending[i]);
1847 tx.num_extra_frag = store->num_extra_frag; 1947
1848 tx.flags = 0; 1948 if (!ieee80211_tx_pending_skb(local, skb)) {
1849 ret = __ieee80211_tx(local, store->skb, &tx); 1949 skb_queue_head(&local->pending[i], skb);
1850 if (ret) { 1950 break;
1851 if (ret == IEEE80211_TX_FRAG_AGAIN) 1951 }
1852 store->skb = NULL;
1853 } else {
1854 clear_bit(i, local->queues_pending);
1855 ieee80211_wake_queue(&local->hw, i);
1856 } 1952 }
1953
1954 /* Start regular packet processing again. */
1955 if (skb_queue_empty(&local->pending[i]))
1956 ieee80211_wake_queue_by_reason(&local->hw, i,
1957 IEEE80211_QUEUE_STOP_REASON_PENDING);
1857 } 1958 }
1959
1858 netif_tx_unlock_bh(dev); 1960 netif_tx_unlock_bh(dev);
1961 rcu_read_unlock();
1859} 1962}
1860 1963
1861/* functions for drivers to get certain frames */ 1964/* functions for drivers to get certain frames */
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e0431a1d218b..fdf432f14554 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -166,18 +166,13 @@ int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
166 166
167void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) 167void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
168{ 168{
169 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; 169 struct sk_buff *skb = tx->skb;
170 170 struct ieee80211_hdr *hdr;
171 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 171
172 if (tx->extra_frag) { 172 do {
173 struct ieee80211_hdr *fhdr; 173 hdr = (struct ieee80211_hdr *) skb->data;
174 int i; 174 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
175 for (i = 0; i < tx->num_extra_frag; i++) { 175 } while ((skb = skb->next));
176 fhdr = (struct ieee80211_hdr *)
177 tx->extra_frag[i]->data;
178 fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
179 }
180 }
181} 176}
182 177
183int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, 178int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
@@ -344,42 +339,21 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
344{ 339{
345 struct ieee80211_local *local = hw_to_local(hw); 340 struct ieee80211_local *local = hw_to_local(hw);
346 341
347 if (queue >= hw->queues) { 342 if (WARN_ON(queue >= hw->queues))
348 if (local->ampdu_ac_queue[queue - hw->queues] < 0) 343 return;
349 return;
350
351 /*
352 * for virtual aggregation queues, we need to refcount the
353 * internal mac80211 disable (multiple times!), keep track of
354 * driver disable _and_ make sure the regular queue is
355 * actually enabled.
356 */
357 if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
358 local->amdpu_ac_stop_refcnt[queue - hw->queues]--;
359 else
360 __clear_bit(reason, &local->queue_stop_reasons[queue]);
361
362 if (local->queue_stop_reasons[queue] ||
363 local->amdpu_ac_stop_refcnt[queue - hw->queues])
364 return;
365
366 /* now go on to treat the corresponding regular queue */
367 queue = local->ampdu_ac_queue[queue - hw->queues];
368 reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
369 }
370 344
371 __clear_bit(reason, &local->queue_stop_reasons[queue]); 345 __clear_bit(reason, &local->queue_stop_reasons[queue]);
372 346
347 if (!skb_queue_empty(&local->pending[queue]) &&
348 local->queue_stop_reasons[queue] ==
349 BIT(IEEE80211_QUEUE_STOP_REASON_PENDING))
350 tasklet_schedule(&local->tx_pending_tasklet);
351
373 if (local->queue_stop_reasons[queue] != 0) 352 if (local->queue_stop_reasons[queue] != 0)
374 /* someone still has this queue stopped */ 353 /* someone still has this queue stopped */
375 return; 354 return;
376 355
377 if (test_bit(queue, local->queues_pending)) { 356 netif_wake_subqueue(local->mdev, queue);
378 set_bit(queue, local->queues_pending_run);
379 tasklet_schedule(&local->tx_pending_tasklet);
380 } else {
381 netif_wake_subqueue(local->mdev, queue);
382 }
383} 357}
384 358
385void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 359void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
@@ -405,29 +379,18 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
405{ 379{
406 struct ieee80211_local *local = hw_to_local(hw); 380 struct ieee80211_local *local = hw_to_local(hw);
407 381
408 if (queue >= hw->queues) { 382 if (WARN_ON(queue >= hw->queues))
409 if (local->ampdu_ac_queue[queue - hw->queues] < 0) 383 return;
410 return;
411
412 /*
413 * for virtual aggregation queues, we need to refcount the
414 * internal mac80211 disable (multiple times!), keep track of
415 * driver disable _and_ make sure the regular queue is
416 * actually enabled.
417 */
418 if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
419 local->amdpu_ac_stop_refcnt[queue - hw->queues]++;
420 else
421 __set_bit(reason, &local->queue_stop_reasons[queue]);
422 384
423 /* now go on to treat the corresponding regular queue */ 385 /*
424 queue = local->ampdu_ac_queue[queue - hw->queues]; 386 * Only stop if it was previously running, this is necessary
425 reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION; 387 * for correct pending packets handling because there we may
426 } 388 * start (but not wake) the queue and rely on that.
389 */
390 if (!local->queue_stop_reasons[queue])
391 netif_stop_subqueue(local->mdev, queue);
427 392
428 __set_bit(reason, &local->queue_stop_reasons[queue]); 393 __set_bit(reason, &local->queue_stop_reasons[queue]);
429
430 netif_stop_subqueue(local->mdev, queue);
431} 394}
432 395
433void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 396void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
@@ -473,15 +436,9 @@ EXPORT_SYMBOL(ieee80211_stop_queues);
473int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) 436int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
474{ 437{
475 struct ieee80211_local *local = hw_to_local(hw); 438 struct ieee80211_local *local = hw_to_local(hw);
476 unsigned long flags;
477 439
478 if (queue >= hw->queues) { 440 if (WARN_ON(queue >= hw->queues))
479 spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 441 return true;
480 queue = local->ampdu_ac_queue[queue - hw->queues];
481 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
482 if (queue < 0)
483 return true;
484 }
485 442
486 return __netif_subqueue_stopped(local->mdev, queue); 443 return __netif_subqueue_stopped(local->mdev, queue);
487} 444}
@@ -496,7 +453,7 @@ void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
496 453
497 spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 454 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
498 455
499 for (i = 0; i < hw->queues + hw->ampdu_queues; i++) 456 for (i = 0; i < hw->queues; i++)
500 __ieee80211_wake_queue(hw, i, reason); 457 __ieee80211_wake_queue(hw, i, reason);
501 458
502 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 459 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
@@ -846,16 +803,9 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
846 struct ieee80211_local *local = sdata->local; 803 struct ieee80211_local *local = sdata->local;
847 struct sk_buff *skb; 804 struct sk_buff *skb;
848 struct ieee80211_mgmt *mgmt; 805 struct ieee80211_mgmt *mgmt;
849 const u8 *ie_auth = NULL;
850 int ie_auth_len = 0;
851
852 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
853 ie_auth_len = sdata->u.mgd.ie_auth_len;
854 ie_auth = sdata->u.mgd.ie_auth;
855 }
856 806
857 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 807 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
858 sizeof(*mgmt) + 6 + extra_len + ie_auth_len); 808 sizeof(*mgmt) + 6 + extra_len);
859 if (!skb) { 809 if (!skb) {
860 printk(KERN_DEBUG "%s: failed to allocate buffer for auth " 810 printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
861 "frame\n", sdata->dev->name); 811 "frame\n", sdata->dev->name);
@@ -877,8 +827,6 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
877 mgmt->u.auth.status_code = cpu_to_le16(0); 827 mgmt->u.auth.status_code = cpu_to_le16(0);
878 if (extra) 828 if (extra)
879 memcpy(skb_put(skb, extra_len), extra, extra_len); 829 memcpy(skb_put(skb, extra_len), extra, extra_len);
880 if (ie_auth)
881 memcpy(skb_put(skb, ie_auth_len), ie_auth, ie_auth_len);
882 830
883 ieee80211_tx_skb(sdata, skb, encrypt); 831 ieee80211_tx_skb(sdata, skb, encrypt);
884} 832}
@@ -891,20 +839,11 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
891 struct ieee80211_supported_band *sband; 839 struct ieee80211_supported_band *sband;
892 struct sk_buff *skb; 840 struct sk_buff *skb;
893 struct ieee80211_mgmt *mgmt; 841 struct ieee80211_mgmt *mgmt;
894 u8 *pos, *supp_rates, *esupp_rates = NULL, *extra_preq_ie = NULL; 842 u8 *pos, *supp_rates, *esupp_rates = NULL;
895 int i, extra_preq_ie_len = 0; 843 int i;
896
897 switch (sdata->vif.type) {
898 case NL80211_IFTYPE_STATION:
899 extra_preq_ie_len = sdata->u.mgd.ie_probereq_len;
900 extra_preq_ie = sdata->u.mgd.ie_probereq;
901 break;
902 default:
903 break;
904 }
905 844
906 skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 + 845 skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
907 ie_len + extra_preq_ie_len); 846 ie_len);
908 if (!skb) { 847 if (!skb) {
909 printk(KERN_DEBUG "%s: failed to allocate buffer for probe " 848 printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
910 "request\n", sdata->dev->name); 849 "request\n", sdata->dev->name);
@@ -953,9 +892,6 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
953 892
954 if (ie) 893 if (ie)
955 memcpy(skb_put(skb, ie_len), ie, ie_len); 894 memcpy(skb_put(skb, ie_len), ie, ie_len);
956 if (extra_preq_ie)
957 memcpy(skb_put(skb, extra_preq_ie_len), extra_preq_ie,
958 extra_preq_ie_len);
959 895
960 ieee80211_tx_skb(sdata, skb, 0); 896 ieee80211_tx_skb(sdata, skb, 0);
961} 897}
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 7043ddc75498..ef73105b3061 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -329,24 +329,17 @@ static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
329ieee80211_tx_result 329ieee80211_tx_result
330ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx) 330ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx)
331{ 331{
332 int i; 332 struct sk_buff *skb;
333 333
334 ieee80211_tx_set_protected(tx); 334 ieee80211_tx_set_protected(tx);
335 335
336 if (wep_encrypt_skb(tx, tx->skb) < 0) { 336 skb = tx->skb;
337 I802_DEBUG_INC(tx->local->tx_handlers_drop_wep); 337 do {
338 return TX_DROP; 338 if (wep_encrypt_skb(tx, skb) < 0) {
339 } 339 I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
340 340 return TX_DROP;
341 if (tx->extra_frag) {
342 for (i = 0; i < tx->num_extra_frag; i++) {
343 if (wep_encrypt_skb(tx, tx->extra_frag[i])) {
344 I802_DEBUG_INC(tx->local->
345 tx_handlers_drop_wep);
346 return TX_DROP;
347 }
348 } 341 }
349 } 342 } while ((skb = skb->next));
350 343
351 return TX_CONTINUE; 344 return TX_CONTINUE;
352} 345}
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 935c63ed3dfa..deb4ecec122a 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -129,14 +129,12 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
129 129
130 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 130 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
131 131
132 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
133 return -EOPNOTSUPP;
134
135 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 132 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
136 int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length); 133 int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
137 if (ret) 134 if (ret)
138 return ret; 135 return ret;
139 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; 136 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
137 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
140 ieee80211_sta_req_auth(sdata); 138 ieee80211_sta_req_auth(sdata);
141 return 0; 139 return 0;
142 } 140 }
@@ -207,14 +205,6 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
207 205
208 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 206 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
209 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 207 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
210 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
211 if (len > IEEE80211_MAX_SSID_LEN)
212 return -EINVAL;
213 memcpy(sdata->u.mgd.ssid, ssid, len);
214 sdata->u.mgd.ssid_len = len;
215 return 0;
216 }
217
218 if (data->flags) 208 if (data->flags)
219 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; 209 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
220 else 210 else
@@ -224,6 +214,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
224 if (ret) 214 if (ret)
225 return ret; 215 return ret;
226 216
217 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
227 ieee80211_sta_req_auth(sdata); 218 ieee80211_sta_req_auth(sdata);
228 return 0; 219 return 0;
229 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 220 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
@@ -272,11 +263,7 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
272 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 263 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
273 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 264 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
274 int ret; 265 int ret;
275 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) { 266
276 memcpy(sdata->u.mgd.bssid, (u8 *) &ap_addr->sa_data,
277 ETH_ALEN);
278 return 0;
279 }
280 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) 267 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
281 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL | 268 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
282 IEEE80211_STA_AUTO_CHANNEL_SEL; 269 IEEE80211_STA_AUTO_CHANNEL_SEL;
@@ -287,6 +274,7 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
287 ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data); 274 ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
288 if (ret) 275 if (ret)
289 return ret; 276 return ret;
277 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
290 ieee80211_sta_req_auth(sdata); 278 ieee80211_sta_req_auth(sdata);
291 return 0; 279 return 0;
292 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { 280 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
@@ -630,7 +618,7 @@ static int ieee80211_ioctl_siwencode(struct net_device *dev,
630 struct ieee80211_sub_if_data *sdata; 618 struct ieee80211_sub_if_data *sdata;
631 int idx, i, alg = ALG_WEP; 619 int idx, i, alg = ALG_WEP;
632 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 620 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
633 int remove = 0; 621 int remove = 0, ret;
634 622
635 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 623 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
636 624
@@ -656,11 +644,20 @@ static int ieee80211_ioctl_siwencode(struct net_device *dev,
656 return 0; 644 return 0;
657 } 645 }
658 646
659 return ieee80211_set_encryption( 647 ret = ieee80211_set_encryption(
660 sdata, bcaddr, 648 sdata, bcaddr,
661 idx, alg, remove, 649 idx, alg, remove,
662 !sdata->default_key, 650 !sdata->default_key,
663 keybuf, erq->length); 651 keybuf, erq->length);
652
653 if (!ret) {
654 if (remove)
655 sdata->u.mgd.flags &= ~IEEE80211_STA_TKIP_WEP_USED;
656 else
657 sdata->u.mgd.flags |= IEEE80211_STA_TKIP_WEP_USED;
658 }
659
660 return ret;
664} 661}
665 662
666 663
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 9101b48ec2ae..4f8bfea278f2 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -196,19 +196,13 @@ ieee80211_tx_result
196ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx) 196ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx)
197{ 197{
198 struct sk_buff *skb = tx->skb; 198 struct sk_buff *skb = tx->skb;
199 int i;
200 199
201 ieee80211_tx_set_protected(tx); 200 ieee80211_tx_set_protected(tx);
202 201
203 if (tkip_encrypt_skb(tx, skb) < 0) 202 do {
204 return TX_DROP; 203 if (tkip_encrypt_skb(tx, skb) < 0)
205 204 return TX_DROP;
206 if (tx->extra_frag) { 205 } while ((skb = skb->next));
207 for (i = 0; i < tx->num_extra_frag; i++) {
208 if (tkip_encrypt_skb(tx, tx->extra_frag[i]))
209 return TX_DROP;
210 }
211 }
212 206
213 return TX_CONTINUE; 207 return TX_CONTINUE;
214} 208}
@@ -428,19 +422,13 @@ ieee80211_tx_result
428ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx) 422ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx)
429{ 423{
430 struct sk_buff *skb = tx->skb; 424 struct sk_buff *skb = tx->skb;
431 int i;
432 425
433 ieee80211_tx_set_protected(tx); 426 ieee80211_tx_set_protected(tx);
434 427
435 if (ccmp_encrypt_skb(tx, skb) < 0) 428 do {
436 return TX_DROP; 429 if (ccmp_encrypt_skb(tx, skb) < 0)
437 430 return TX_DROP;
438 if (tx->extra_frag) { 431 } while ((skb = skb->next));
439 for (i = 0; i < tx->num_extra_frag; i++) {
440 if (ccmp_encrypt_skb(tx, tx->extra_frag[i]))
441 return TX_DROP;
442 }
443 }
444 432
445 return TX_CONTINUE; 433 return TX_CONTINUE;
446} 434}
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 2562d05dbaf5..2c967e4f706c 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -374,7 +374,7 @@ config NETFILTER_XT_TARGET_HL
374 374
375config NETFILTER_XT_TARGET_LED 375config NETFILTER_XT_TARGET_LED
376 tristate '"LED" target support' 376 tristate '"LED" target support'
377 depends on LEDS_CLASS 377 depends on LEDS_CLASS && LED_TRIGGERS
378 depends on NETFILTER_ADVANCED 378 depends on NETFILTER_ADVANCED
379 help 379 help
380 This option adds a `LED' target, which allows you to blink LEDs in 380 This option adds a `LED' target, which allows you to blink LEDs in
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index dfb447b584da..8020db6274b8 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -29,6 +29,7 @@
29#include <linux/netdevice.h> 29#include <linux/netdevice.h>
30#include <linux/socket.h> 30#include <linux/socket.h>
31#include <linux/mm.h> 31#include <linux/mm.h>
32#include <linux/rculist_nulls.h>
32 33
33#include <net/netfilter/nf_conntrack.h> 34#include <net/netfilter/nf_conntrack.h>
34#include <net/netfilter/nf_conntrack_l3proto.h> 35#include <net/netfilter/nf_conntrack_l3proto.h>
@@ -163,8 +164,8 @@ static void
163clean_from_lists(struct nf_conn *ct) 164clean_from_lists(struct nf_conn *ct)
164{ 165{
165 pr_debug("clean_from_lists(%p)\n", ct); 166 pr_debug("clean_from_lists(%p)\n", ct);
166 hlist_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode); 167 hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
167 hlist_del_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnode); 168 hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode);
168 169
169 /* Destroy all pending expectations */ 170 /* Destroy all pending expectations */
170 nf_ct_remove_expectations(ct); 171 nf_ct_remove_expectations(ct);
@@ -204,8 +205,8 @@ destroy_conntrack(struct nf_conntrack *nfct)
204 205
205 /* We overload first tuple to link into unconfirmed list. */ 206 /* We overload first tuple to link into unconfirmed list. */
206 if (!nf_ct_is_confirmed(ct)) { 207 if (!nf_ct_is_confirmed(ct)) {
207 BUG_ON(hlist_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode)); 208 BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
208 hlist_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode); 209 hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
209 } 210 }
210 211
211 NF_CT_STAT_INC(net, delete); 212 NF_CT_STAT_INC(net, delete);
@@ -242,18 +243,26 @@ static void death_by_timeout(unsigned long ul_conntrack)
242 nf_ct_put(ct); 243 nf_ct_put(ct);
243} 244}
244 245
246/*
247 * Warning :
248 * - Caller must take a reference on returned object
249 * and recheck nf_ct_tuple_equal(tuple, &h->tuple)
250 * OR
251 * - Caller must lock nf_conntrack_lock before calling this function
252 */
245struct nf_conntrack_tuple_hash * 253struct nf_conntrack_tuple_hash *
246__nf_conntrack_find(struct net *net, const struct nf_conntrack_tuple *tuple) 254__nf_conntrack_find(struct net *net, const struct nf_conntrack_tuple *tuple)
247{ 255{
248 struct nf_conntrack_tuple_hash *h; 256 struct nf_conntrack_tuple_hash *h;
249 struct hlist_node *n; 257 struct hlist_nulls_node *n;
250 unsigned int hash = hash_conntrack(tuple); 258 unsigned int hash = hash_conntrack(tuple);
251 259
252 /* Disable BHs the entire time since we normally need to disable them 260 /* Disable BHs the entire time since we normally need to disable them
253 * at least once for the stats anyway. 261 * at least once for the stats anyway.
254 */ 262 */
255 local_bh_disable(); 263 local_bh_disable();
256 hlist_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnode) { 264begin:
265 hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnnode) {
257 if (nf_ct_tuple_equal(tuple, &h->tuple)) { 266 if (nf_ct_tuple_equal(tuple, &h->tuple)) {
258 NF_CT_STAT_INC(net, found); 267 NF_CT_STAT_INC(net, found);
259 local_bh_enable(); 268 local_bh_enable();
@@ -261,6 +270,13 @@ __nf_conntrack_find(struct net *net, const struct nf_conntrack_tuple *tuple)
261 } 270 }
262 NF_CT_STAT_INC(net, searched); 271 NF_CT_STAT_INC(net, searched);
263 } 272 }
273 /*
274 * if the nulls value we got at the end of this lookup is
275 * not the expected one, we must restart lookup.
276 * We probably met an item that was moved to another chain.
277 */
278 if (get_nulls_value(n) != hash)
279 goto begin;
264 local_bh_enable(); 280 local_bh_enable();
265 281
266 return NULL; 282 return NULL;
@@ -275,11 +291,18 @@ nf_conntrack_find_get(struct net *net, const struct nf_conntrack_tuple *tuple)
275 struct nf_conn *ct; 291 struct nf_conn *ct;
276 292
277 rcu_read_lock(); 293 rcu_read_lock();
294begin:
278 h = __nf_conntrack_find(net, tuple); 295 h = __nf_conntrack_find(net, tuple);
279 if (h) { 296 if (h) {
280 ct = nf_ct_tuplehash_to_ctrack(h); 297 ct = nf_ct_tuplehash_to_ctrack(h);
281 if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use))) 298 if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
282 h = NULL; 299 h = NULL;
300 else {
301 if (unlikely(!nf_ct_tuple_equal(tuple, &h->tuple))) {
302 nf_ct_put(ct);
303 goto begin;
304 }
305 }
283 } 306 }
284 rcu_read_unlock(); 307 rcu_read_unlock();
285 308
@@ -293,9 +316,9 @@ static void __nf_conntrack_hash_insert(struct nf_conn *ct,
293{ 316{
294 struct net *net = nf_ct_net(ct); 317 struct net *net = nf_ct_net(ct);
295 318
296 hlist_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode, 319 hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
297 &net->ct.hash[hash]); 320 &net->ct.hash[hash]);
298 hlist_add_head_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnode, 321 hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode,
299 &net->ct.hash[repl_hash]); 322 &net->ct.hash[repl_hash]);
300} 323}
301 324
@@ -318,7 +341,7 @@ __nf_conntrack_confirm(struct sk_buff *skb)
318 struct nf_conntrack_tuple_hash *h; 341 struct nf_conntrack_tuple_hash *h;
319 struct nf_conn *ct; 342 struct nf_conn *ct;
320 struct nf_conn_help *help; 343 struct nf_conn_help *help;
321 struct hlist_node *n; 344 struct hlist_nulls_node *n;
322 enum ip_conntrack_info ctinfo; 345 enum ip_conntrack_info ctinfo;
323 struct net *net; 346 struct net *net;
324 347
@@ -350,17 +373,17 @@ __nf_conntrack_confirm(struct sk_buff *skb)
350 /* See if there's one in the list already, including reverse: 373 /* See if there's one in the list already, including reverse:
351 NAT could have grabbed it without realizing, since we're 374 NAT could have grabbed it without realizing, since we're
352 not in the hash. If there is, we lost race. */ 375 not in the hash. If there is, we lost race. */
353 hlist_for_each_entry(h, n, &net->ct.hash[hash], hnode) 376 hlist_nulls_for_each_entry(h, n, &net->ct.hash[hash], hnnode)
354 if (nf_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, 377 if (nf_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
355 &h->tuple)) 378 &h->tuple))
356 goto out; 379 goto out;
357 hlist_for_each_entry(h, n, &net->ct.hash[repl_hash], hnode) 380 hlist_nulls_for_each_entry(h, n, &net->ct.hash[repl_hash], hnnode)
358 if (nf_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_REPLY].tuple, 381 if (nf_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_REPLY].tuple,
359 &h->tuple)) 382 &h->tuple))
360 goto out; 383 goto out;
361 384
362 /* Remove from unconfirmed list */ 385 /* Remove from unconfirmed list */
363 hlist_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode); 386 hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
364 387
365 __nf_conntrack_hash_insert(ct, hash, repl_hash); 388 __nf_conntrack_hash_insert(ct, hash, repl_hash);
366 /* Timer relative to confirmation time, not original 389 /* Timer relative to confirmation time, not original
@@ -399,14 +422,14 @@ nf_conntrack_tuple_taken(const struct nf_conntrack_tuple *tuple,
399{ 422{
400 struct net *net = nf_ct_net(ignored_conntrack); 423 struct net *net = nf_ct_net(ignored_conntrack);
401 struct nf_conntrack_tuple_hash *h; 424 struct nf_conntrack_tuple_hash *h;
402 struct hlist_node *n; 425 struct hlist_nulls_node *n;
403 unsigned int hash = hash_conntrack(tuple); 426 unsigned int hash = hash_conntrack(tuple);
404 427
405 /* Disable BHs the entire time since we need to disable them at 428 /* Disable BHs the entire time since we need to disable them at
406 * least once for the stats anyway. 429 * least once for the stats anyway.
407 */ 430 */
408 rcu_read_lock_bh(); 431 rcu_read_lock_bh();
409 hlist_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnode) { 432 hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnnode) {
410 if (nf_ct_tuplehash_to_ctrack(h) != ignored_conntrack && 433 if (nf_ct_tuplehash_to_ctrack(h) != ignored_conntrack &&
411 nf_ct_tuple_equal(tuple, &h->tuple)) { 434 nf_ct_tuple_equal(tuple, &h->tuple)) {
412 NF_CT_STAT_INC(net, found); 435 NF_CT_STAT_INC(net, found);
@@ -430,14 +453,14 @@ static noinline int early_drop(struct net *net, unsigned int hash)
430 /* Use oldest entry, which is roughly LRU */ 453 /* Use oldest entry, which is roughly LRU */
431 struct nf_conntrack_tuple_hash *h; 454 struct nf_conntrack_tuple_hash *h;
432 struct nf_conn *ct = NULL, *tmp; 455 struct nf_conn *ct = NULL, *tmp;
433 struct hlist_node *n; 456 struct hlist_nulls_node *n;
434 unsigned int i, cnt = 0; 457 unsigned int i, cnt = 0;
435 int dropped = 0; 458 int dropped = 0;
436 459
437 rcu_read_lock(); 460 rcu_read_lock();
438 for (i = 0; i < nf_conntrack_htable_size; i++) { 461 for (i = 0; i < nf_conntrack_htable_size; i++) {
439 hlist_for_each_entry_rcu(h, n, &net->ct.hash[hash], 462 hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash],
440 hnode) { 463 hnnode) {
441 tmp = nf_ct_tuplehash_to_ctrack(h); 464 tmp = nf_ct_tuplehash_to_ctrack(h);
442 if (!test_bit(IPS_ASSURED_BIT, &tmp->status)) 465 if (!test_bit(IPS_ASSURED_BIT, &tmp->status))
443 ct = tmp; 466 ct = tmp;
@@ -508,27 +531,19 @@ struct nf_conn *nf_conntrack_alloc(struct net *net,
508#ifdef CONFIG_NET_NS 531#ifdef CONFIG_NET_NS
509 ct->ct_net = net; 532 ct->ct_net = net;
510#endif 533#endif
511 INIT_RCU_HEAD(&ct->rcu);
512 534
513 return ct; 535 return ct;
514} 536}
515EXPORT_SYMBOL_GPL(nf_conntrack_alloc); 537EXPORT_SYMBOL_GPL(nf_conntrack_alloc);
516 538
517static void nf_conntrack_free_rcu(struct rcu_head *head)
518{
519 struct nf_conn *ct = container_of(head, struct nf_conn, rcu);
520
521 nf_ct_ext_free(ct);
522 kmem_cache_free(nf_conntrack_cachep, ct);
523}
524
525void nf_conntrack_free(struct nf_conn *ct) 539void nf_conntrack_free(struct nf_conn *ct)
526{ 540{
527 struct net *net = nf_ct_net(ct); 541 struct net *net = nf_ct_net(ct);
528 542
529 nf_ct_ext_destroy(ct); 543 nf_ct_ext_destroy(ct);
530 atomic_dec(&net->ct.count); 544 atomic_dec(&net->ct.count);
531 call_rcu(&ct->rcu, nf_conntrack_free_rcu); 545 nf_ct_ext_free(ct);
546 kmem_cache_free(nf_conntrack_cachep, ct);
532} 547}
533EXPORT_SYMBOL_GPL(nf_conntrack_free); 548EXPORT_SYMBOL_GPL(nf_conntrack_free);
534 549
@@ -594,7 +609,7 @@ init_conntrack(struct net *net,
594 } 609 }
595 610
596 /* Overload tuple linked list to put us in unconfirmed list. */ 611 /* Overload tuple linked list to put us in unconfirmed list. */
597 hlist_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode, 612 hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
598 &net->ct.unconfirmed); 613 &net->ct.unconfirmed);
599 614
600 spin_unlock_bh(&nf_conntrack_lock); 615 spin_unlock_bh(&nf_conntrack_lock);
@@ -906,6 +921,12 @@ int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
906 return 0; 921 return 0;
907} 922}
908EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_to_tuple); 923EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_to_tuple);
924
925int nf_ct_port_nlattr_tuple_size(void)
926{
927 return nla_policy_len(nf_ct_port_nla_policy, CTA_PROTO_MAX + 1);
928}
929EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_tuple_size);
909#endif 930#endif
910 931
911/* Used by ipt_REJECT and ip6t_REJECT. */ 932/* Used by ipt_REJECT and ip6t_REJECT. */
@@ -934,17 +955,17 @@ get_next_corpse(struct net *net, int (*iter)(struct nf_conn *i, void *data),
934{ 955{
935 struct nf_conntrack_tuple_hash *h; 956 struct nf_conntrack_tuple_hash *h;
936 struct nf_conn *ct; 957 struct nf_conn *ct;
937 struct hlist_node *n; 958 struct hlist_nulls_node *n;
938 959
939 spin_lock_bh(&nf_conntrack_lock); 960 spin_lock_bh(&nf_conntrack_lock);
940 for (; *bucket < nf_conntrack_htable_size; (*bucket)++) { 961 for (; *bucket < nf_conntrack_htable_size; (*bucket)++) {
941 hlist_for_each_entry(h, n, &net->ct.hash[*bucket], hnode) { 962 hlist_nulls_for_each_entry(h, n, &net->ct.hash[*bucket], hnnode) {
942 ct = nf_ct_tuplehash_to_ctrack(h); 963 ct = nf_ct_tuplehash_to_ctrack(h);
943 if (iter(ct, data)) 964 if (iter(ct, data))
944 goto found; 965 goto found;
945 } 966 }
946 } 967 }
947 hlist_for_each_entry(h, n, &net->ct.unconfirmed, hnode) { 968 hlist_nulls_for_each_entry(h, n, &net->ct.unconfirmed, hnnode) {
948 ct = nf_ct_tuplehash_to_ctrack(h); 969 ct = nf_ct_tuplehash_to_ctrack(h);
949 if (iter(ct, data)) 970 if (iter(ct, data))
950 set_bit(IPS_DYING_BIT, &ct->status); 971 set_bit(IPS_DYING_BIT, &ct->status);
@@ -992,7 +1013,7 @@ static int kill_all(struct nf_conn *i, void *data)
992 return 1; 1013 return 1;
993} 1014}
994 1015
995void nf_ct_free_hashtable(struct hlist_head *hash, int vmalloced, unsigned int size) 1016void nf_ct_free_hashtable(void *hash, int vmalloced, unsigned int size)
996{ 1017{
997 if (vmalloced) 1018 if (vmalloced)
998 vfree(hash); 1019 vfree(hash);
@@ -1060,26 +1081,28 @@ void nf_conntrack_cleanup(struct net *net)
1060 } 1081 }
1061} 1082}
1062 1083
1063struct hlist_head *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced) 1084void *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced, int nulls)
1064{ 1085{
1065 struct hlist_head *hash; 1086 struct hlist_nulls_head *hash;
1066 unsigned int size, i; 1087 unsigned int nr_slots, i;
1088 size_t sz;
1067 1089
1068 *vmalloced = 0; 1090 *vmalloced = 0;
1069 1091
1070 size = *sizep = roundup(*sizep, PAGE_SIZE / sizeof(struct hlist_head)); 1092 BUILD_BUG_ON(sizeof(struct hlist_nulls_head) != sizeof(struct hlist_head));
1071 hash = (void*)__get_free_pages(GFP_KERNEL|__GFP_NOWARN, 1093 nr_slots = *sizep = roundup(*sizep, PAGE_SIZE / sizeof(struct hlist_nulls_head));
1072 get_order(sizeof(struct hlist_head) 1094 sz = nr_slots * sizeof(struct hlist_nulls_head);
1073 * size)); 1095 hash = (void *)__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO,
1096 get_order(sz));
1074 if (!hash) { 1097 if (!hash) {
1075 *vmalloced = 1; 1098 *vmalloced = 1;
1076 printk(KERN_WARNING "nf_conntrack: falling back to vmalloc.\n"); 1099 printk(KERN_WARNING "nf_conntrack: falling back to vmalloc.\n");
1077 hash = vmalloc(sizeof(struct hlist_head) * size); 1100 hash = __vmalloc(sz, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
1078 } 1101 }
1079 1102
1080 if (hash) 1103 if (hash && nulls)
1081 for (i = 0; i < size; i++) 1104 for (i = 0; i < nr_slots; i++)
1082 INIT_HLIST_HEAD(&hash[i]); 1105 INIT_HLIST_NULLS_HEAD(&hash[i], i);
1083 1106
1084 return hash; 1107 return hash;
1085} 1108}
@@ -1090,7 +1113,7 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
1090 int i, bucket, vmalloced, old_vmalloced; 1113 int i, bucket, vmalloced, old_vmalloced;
1091 unsigned int hashsize, old_size; 1114 unsigned int hashsize, old_size;
1092 int rnd; 1115 int rnd;
1093 struct hlist_head *hash, *old_hash; 1116 struct hlist_nulls_head *hash, *old_hash;
1094 struct nf_conntrack_tuple_hash *h; 1117 struct nf_conntrack_tuple_hash *h;
1095 1118
1096 /* On boot, we can set this without any fancy locking. */ 1119 /* On boot, we can set this without any fancy locking. */
@@ -1101,7 +1124,7 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
1101 if (!hashsize) 1124 if (!hashsize)
1102 return -EINVAL; 1125 return -EINVAL;
1103 1126
1104 hash = nf_ct_alloc_hashtable(&hashsize, &vmalloced); 1127 hash = nf_ct_alloc_hashtable(&hashsize, &vmalloced, 1);
1105 if (!hash) 1128 if (!hash)
1106 return -ENOMEM; 1129 return -ENOMEM;
1107 1130
@@ -1116,12 +1139,12 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
1116 */ 1139 */
1117 spin_lock_bh(&nf_conntrack_lock); 1140 spin_lock_bh(&nf_conntrack_lock);
1118 for (i = 0; i < nf_conntrack_htable_size; i++) { 1141 for (i = 0; i < nf_conntrack_htable_size; i++) {
1119 while (!hlist_empty(&init_net.ct.hash[i])) { 1142 while (!hlist_nulls_empty(&init_net.ct.hash[i])) {
1120 h = hlist_entry(init_net.ct.hash[i].first, 1143 h = hlist_nulls_entry(init_net.ct.hash[i].first,
1121 struct nf_conntrack_tuple_hash, hnode); 1144 struct nf_conntrack_tuple_hash, hnnode);
1122 hlist_del_rcu(&h->hnode); 1145 hlist_nulls_del_rcu(&h->hnnode);
1123 bucket = __hash_conntrack(&h->tuple, hashsize, rnd); 1146 bucket = __hash_conntrack(&h->tuple, hashsize, rnd);
1124 hlist_add_head(&h->hnode, &hash[bucket]); 1147 hlist_nulls_add_head_rcu(&h->hnnode, &hash[bucket]);
1125 } 1148 }
1126 } 1149 }
1127 old_size = nf_conntrack_htable_size; 1150 old_size = nf_conntrack_htable_size;
@@ -1172,7 +1195,7 @@ static int nf_conntrack_init_init_net(void)
1172 1195
1173 nf_conntrack_cachep = kmem_cache_create("nf_conntrack", 1196 nf_conntrack_cachep = kmem_cache_create("nf_conntrack",
1174 sizeof(struct nf_conn), 1197 sizeof(struct nf_conn),
1175 0, 0, NULL); 1198 0, SLAB_DESTROY_BY_RCU, NULL);
1176 if (!nf_conntrack_cachep) { 1199 if (!nf_conntrack_cachep) {
1177 printk(KERN_ERR "Unable to create nf_conn slab cache\n"); 1200 printk(KERN_ERR "Unable to create nf_conn slab cache\n");
1178 ret = -ENOMEM; 1201 ret = -ENOMEM;
@@ -1202,7 +1225,7 @@ static int nf_conntrack_init_net(struct net *net)
1202 int ret; 1225 int ret;
1203 1226
1204 atomic_set(&net->ct.count, 0); 1227 atomic_set(&net->ct.count, 0);
1205 INIT_HLIST_HEAD(&net->ct.unconfirmed); 1228 INIT_HLIST_NULLS_HEAD(&net->ct.unconfirmed, 0);
1206 net->ct.stat = alloc_percpu(struct ip_conntrack_stat); 1229 net->ct.stat = alloc_percpu(struct ip_conntrack_stat);
1207 if (!net->ct.stat) { 1230 if (!net->ct.stat) {
1208 ret = -ENOMEM; 1231 ret = -ENOMEM;
@@ -1212,7 +1235,7 @@ static int nf_conntrack_init_net(struct net *net)
1212 if (ret < 0) 1235 if (ret < 0)
1213 goto err_ecache; 1236 goto err_ecache;
1214 net->ct.hash = nf_ct_alloc_hashtable(&nf_conntrack_htable_size, 1237 net->ct.hash = nf_ct_alloc_hashtable(&nf_conntrack_htable_size,
1215 &net->ct.hash_vmalloc); 1238 &net->ct.hash_vmalloc, 1);
1216 if (!net->ct.hash) { 1239 if (!net->ct.hash) {
1217 ret = -ENOMEM; 1240 ret = -ENOMEM;
1218 printk(KERN_ERR "Unable to create nf_conntrack_hash\n"); 1241 printk(KERN_ERR "Unable to create nf_conntrack_hash\n");
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index 357ba39d4c8d..3940f996a2e4 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -604,7 +604,7 @@ int nf_conntrack_expect_init(struct net *net)
604 604
605 net->ct.expect_count = 0; 605 net->ct.expect_count = 0;
606 net->ct.expect_hash = nf_ct_alloc_hashtable(&nf_ct_expect_hsize, 606 net->ct.expect_hash = nf_ct_alloc_hashtable(&nf_ct_expect_hsize,
607 &net->ct.expect_vmalloc); 607 &net->ct.expect_vmalloc, 0);
608 if (net->ct.expect_hash == NULL) 608 if (net->ct.expect_hash == NULL)
609 goto err1; 609 goto err1;
610 610
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index a51bdac9f3a0..30b8e9009f99 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -142,6 +142,7 @@ int nf_conntrack_helper_register(struct nf_conntrack_helper *me)
142 142
143 BUG_ON(me->expect_policy == NULL); 143 BUG_ON(me->expect_policy == NULL);
144 BUG_ON(me->expect_class_max >= NF_CT_MAX_EXPECT_CLASSES); 144 BUG_ON(me->expect_class_max >= NF_CT_MAX_EXPECT_CLASSES);
145 BUG_ON(strlen(me->name) > NF_CT_HELPER_NAME_LEN - 1);
145 146
146 mutex_lock(&nf_ct_helper_mutex); 147 mutex_lock(&nf_ct_helper_mutex);
147 hlist_add_head_rcu(&me->hnode, &nf_ct_helper_hash[h]); 148 hlist_add_head_rcu(&me->hnode, &nf_ct_helper_hash[h]);
@@ -158,6 +159,7 @@ static void __nf_conntrack_helper_unregister(struct nf_conntrack_helper *me,
158 struct nf_conntrack_tuple_hash *h; 159 struct nf_conntrack_tuple_hash *h;
159 struct nf_conntrack_expect *exp; 160 struct nf_conntrack_expect *exp;
160 const struct hlist_node *n, *next; 161 const struct hlist_node *n, *next;
162 const struct hlist_nulls_node *nn;
161 unsigned int i; 163 unsigned int i;
162 164
163 /* Get rid of expectations */ 165 /* Get rid of expectations */
@@ -174,10 +176,10 @@ static void __nf_conntrack_helper_unregister(struct nf_conntrack_helper *me,
174 } 176 }
175 177
176 /* Get rid of expecteds, set helpers to NULL. */ 178 /* Get rid of expecteds, set helpers to NULL. */
177 hlist_for_each_entry(h, n, &net->ct.unconfirmed, hnode) 179 hlist_for_each_entry(h, nn, &net->ct.unconfirmed, hnnode)
178 unhelp(h, me); 180 unhelp(h, me);
179 for (i = 0; i < nf_conntrack_htable_size; i++) { 181 for (i = 0; i < nf_conntrack_htable_size; i++) {
180 hlist_for_each_entry(h, n, &net->ct.hash[i], hnode) 182 hlist_nulls_for_each_entry(h, nn, &net->ct.hash[i], hnnode)
181 unhelp(h, me); 183 unhelp(h, me);
182 } 184 }
183} 185}
@@ -217,7 +219,7 @@ int nf_conntrack_helper_init(void)
217 219
218 nf_ct_helper_hsize = 1; /* gets rounded up to use one page */ 220 nf_ct_helper_hsize = 1; /* gets rounded up to use one page */
219 nf_ct_helper_hash = nf_ct_alloc_hashtable(&nf_ct_helper_hsize, 221 nf_ct_helper_hash = nf_ct_alloc_hashtable(&nf_ct_helper_hsize,
220 &nf_ct_helper_vmalloc); 222 &nf_ct_helper_vmalloc, 0);
221 if (!nf_ct_helper_hash) 223 if (!nf_ct_helper_hash)
222 return -ENOMEM; 224 return -ENOMEM;
223 225
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 7a16bd462f82..c6439c77953c 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -19,6 +19,7 @@
19#include <linux/module.h> 19#include <linux/module.h>
20#include <linux/kernel.h> 20#include <linux/kernel.h>
21#include <linux/rculist.h> 21#include <linux/rculist.h>
22#include <linux/rculist_nulls.h>
22#include <linux/types.h> 23#include <linux/types.h>
23#include <linux/timer.h> 24#include <linux/timer.h>
24#include <linux/skbuff.h> 25#include <linux/skbuff.h>
@@ -404,6 +405,78 @@ nla_put_failure:
404} 405}
405 406
406#ifdef CONFIG_NF_CONNTRACK_EVENTS 407#ifdef CONFIG_NF_CONNTRACK_EVENTS
408/*
409 * The general structure of a ctnetlink event is
410 *
411 * CTA_TUPLE_ORIG
412 * <l3/l4-proto-attributes>
413 * CTA_TUPLE_REPLY
414 * <l3/l4-proto-attributes>
415 * CTA_ID
416 * ...
417 * CTA_PROTOINFO
418 * <l4-proto-attributes>
419 * CTA_TUPLE_MASTER
420 * <l3/l4-proto-attributes>
421 *
422 * Therefore the formular is
423 *
424 * size = sizeof(headers) + sizeof(generic_nlas) + 3 * sizeof(tuple_nlas)
425 * + sizeof(protoinfo_nlas)
426 */
427static struct sk_buff *
428ctnetlink_alloc_skb(const struct nf_conntrack_tuple *tuple, gfp_t gfp)
429{
430 struct nf_conntrack_l3proto *l3proto;
431 struct nf_conntrack_l4proto *l4proto;
432 int len;
433
434#define NLA_TYPE_SIZE(type) nla_total_size(sizeof(type))
435
436 /* proto independant part */
437 len = NLMSG_SPACE(sizeof(struct nfgenmsg))
438 + 3 * nla_total_size(0) /* CTA_TUPLE_ORIG|REPL|MASTER */
439 + 3 * nla_total_size(0) /* CTA_TUPLE_IP */
440 + 3 * nla_total_size(0) /* CTA_TUPLE_PROTO */
441 + 3 * NLA_TYPE_SIZE(u_int8_t) /* CTA_PROTO_NUM */
442 + NLA_TYPE_SIZE(u_int32_t) /* CTA_ID */
443 + NLA_TYPE_SIZE(u_int32_t) /* CTA_STATUS */
444#ifdef CONFIG_NF_CT_ACCT
445 + 2 * nla_total_size(0) /* CTA_COUNTERS_ORIG|REPL */
446 + 2 * NLA_TYPE_SIZE(uint64_t) /* CTA_COUNTERS_PACKETS */
447 + 2 * NLA_TYPE_SIZE(uint64_t) /* CTA_COUNTERS_BYTES */
448#endif
449 + NLA_TYPE_SIZE(u_int32_t) /* CTA_TIMEOUT */
450 + nla_total_size(0) /* CTA_PROTOINFO */
451 + nla_total_size(0) /* CTA_HELP */
452 + nla_total_size(NF_CT_HELPER_NAME_LEN) /* CTA_HELP_NAME */
453#ifdef CONFIG_NF_CONNTRACK_SECMARK
454 + NLA_TYPE_SIZE(u_int32_t) /* CTA_SECMARK */
455#endif
456#ifdef CONFIG_NF_NAT_NEEDED
457 + 2 * nla_total_size(0) /* CTA_NAT_SEQ_ADJ_ORIG|REPL */
458 + 2 * NLA_TYPE_SIZE(u_int32_t) /* CTA_NAT_SEQ_CORRECTION_POS */
459 + 2 * NLA_TYPE_SIZE(u_int32_t) /* CTA_NAT_SEQ_CORRECTION_BEFORE */
460 + 2 * NLA_TYPE_SIZE(u_int32_t) /* CTA_NAT_SEQ_CORRECTION_AFTER */
461#endif
462#ifdef CONFIG_NF_CONNTRACK_MARK
463 + NLA_TYPE_SIZE(u_int32_t) /* CTA_MARK */
464#endif
465 ;
466
467#undef NLA_TYPE_SIZE
468
469 rcu_read_lock();
470 l3proto = __nf_ct_l3proto_find(tuple->src.l3num);
471 len += l3proto->nla_size;
472
473 l4proto = __nf_ct_l4proto_find(tuple->src.l3num, tuple->dst.protonum);
474 len += l4proto->nla_size;
475 rcu_read_unlock();
476
477 return alloc_skb(len, gfp);
478}
479
407static int ctnetlink_conntrack_event(struct notifier_block *this, 480static int ctnetlink_conntrack_event(struct notifier_block *this,
408 unsigned long events, void *ptr) 481 unsigned long events, void *ptr)
409{ 482{
@@ -437,7 +510,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
437 if (!item->report && !nfnetlink_has_listeners(group)) 510 if (!item->report && !nfnetlink_has_listeners(group))
438 return NOTIFY_DONE; 511 return NOTIFY_DONE;
439 512
440 skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC); 513 skb = ctnetlink_alloc_skb(tuple(ct, IP_CT_DIR_ORIGINAL), GFP_ATOMIC);
441 if (!skb) 514 if (!skb)
442 return NOTIFY_DONE; 515 return NOTIFY_DONE;
443 516
@@ -536,7 +609,7 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
536{ 609{
537 struct nf_conn *ct, *last; 610 struct nf_conn *ct, *last;
538 struct nf_conntrack_tuple_hash *h; 611 struct nf_conntrack_tuple_hash *h;
539 struct hlist_node *n; 612 struct hlist_nulls_node *n;
540 struct nfgenmsg *nfmsg = NLMSG_DATA(cb->nlh); 613 struct nfgenmsg *nfmsg = NLMSG_DATA(cb->nlh);
541 u_int8_t l3proto = nfmsg->nfgen_family; 614 u_int8_t l3proto = nfmsg->nfgen_family;
542 615
@@ -544,27 +617,27 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
544 last = (struct nf_conn *)cb->args[1]; 617 last = (struct nf_conn *)cb->args[1];
545 for (; cb->args[0] < nf_conntrack_htable_size; cb->args[0]++) { 618 for (; cb->args[0] < nf_conntrack_htable_size; cb->args[0]++) {
546restart: 619restart:
547 hlist_for_each_entry_rcu(h, n, &init_net.ct.hash[cb->args[0]], 620 hlist_nulls_for_each_entry_rcu(h, n, &init_net.ct.hash[cb->args[0]],
548 hnode) { 621 hnnode) {
549 if (NF_CT_DIRECTION(h) != IP_CT_DIR_ORIGINAL) 622 if (NF_CT_DIRECTION(h) != IP_CT_DIR_ORIGINAL)
550 continue; 623 continue;
551 ct = nf_ct_tuplehash_to_ctrack(h); 624 ct = nf_ct_tuplehash_to_ctrack(h);
625 if (!atomic_inc_not_zero(&ct->ct_general.use))
626 continue;
552 /* Dump entries of a given L3 protocol number. 627 /* Dump entries of a given L3 protocol number.
553 * If it is not specified, ie. l3proto == 0, 628 * If it is not specified, ie. l3proto == 0,
554 * then dump everything. */ 629 * then dump everything. */
555 if (l3proto && nf_ct_l3num(ct) != l3proto) 630 if (l3proto && nf_ct_l3num(ct) != l3proto)
556 continue; 631 goto releasect;
557 if (cb->args[1]) { 632 if (cb->args[1]) {
558 if (ct != last) 633 if (ct != last)
559 continue; 634 goto releasect;
560 cb->args[1] = 0; 635 cb->args[1] = 0;
561 } 636 }
562 if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid, 637 if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
563 cb->nlh->nlmsg_seq, 638 cb->nlh->nlmsg_seq,
564 IPCTNL_MSG_CT_NEW, 639 IPCTNL_MSG_CT_NEW,
565 1, ct) < 0) { 640 1, ct) < 0) {
566 if (!atomic_inc_not_zero(&ct->ct_general.use))
567 continue;
568 cb->args[1] = (unsigned long)ct; 641 cb->args[1] = (unsigned long)ct;
569 goto out; 642 goto out;
570 } 643 }
@@ -577,6 +650,8 @@ restart:
577 if (acct) 650 if (acct)
578 memset(acct, 0, sizeof(struct nf_conn_counter[IP_CT_DIR_MAX])); 651 memset(acct, 0, sizeof(struct nf_conn_counter[IP_CT_DIR_MAX]));
579 } 652 }
653releasect:
654 nf_ct_put(ct);
580 } 655 }
581 if (cb->args[1]) { 656 if (cb->args[1]) {
582 cb->args[1] = 0; 657 cb->args[1] = 0;
@@ -1242,13 +1317,12 @@ ctnetlink_create_conntrack(struct nlattr *cda[],
1242 if (err < 0) 1317 if (err < 0)
1243 goto err2; 1318 goto err2;
1244 1319
1245 master_h = __nf_conntrack_find(&init_net, &master); 1320 master_h = nf_conntrack_find_get(&init_net, &master);
1246 if (master_h == NULL) { 1321 if (master_h == NULL) {
1247 err = -ENOENT; 1322 err = -ENOENT;
1248 goto err2; 1323 goto err2;
1249 } 1324 }
1250 master_ct = nf_ct_tuplehash_to_ctrack(master_h); 1325 master_ct = nf_ct_tuplehash_to_ctrack(master_h);
1251 nf_conntrack_get(&master_ct->ct_general);
1252 __set_bit(IPS_EXPECTED_BIT, &ct->status); 1326 __set_bit(IPS_EXPECTED_BIT, &ct->status);
1253 ct->master = master_ct; 1327 ct->master = master_ct;
1254 } 1328 }
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 9a62b4efa0e1..1a4568bf7ea5 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -167,6 +167,9 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
167 if (proto->l3proto >= AF_MAX) 167 if (proto->l3proto >= AF_MAX)
168 return -EBUSY; 168 return -EBUSY;
169 169
170 if (proto->tuple_to_nlattr && !proto->nlattr_tuple_size)
171 return -EINVAL;
172
170 mutex_lock(&nf_ct_proto_mutex); 173 mutex_lock(&nf_ct_proto_mutex);
171 if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_l3proto_generic) { 174 if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_l3proto_generic) {
172 ret = -EBUSY; 175 ret = -EBUSY;
@@ -177,6 +180,9 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
177 if (ret < 0) 180 if (ret < 0)
178 goto out_unlock; 181 goto out_unlock;
179 182
183 if (proto->nlattr_tuple_size)
184 proto->nla_size = 3 * proto->nlattr_tuple_size();
185
180 rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], proto); 186 rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], proto);
181 187
182out_unlock: 188out_unlock:
@@ -263,6 +269,10 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
263 if (l4proto->l3proto >= PF_MAX) 269 if (l4proto->l3proto >= PF_MAX)
264 return -EBUSY; 270 return -EBUSY;
265 271
272 if ((l4proto->to_nlattr && !l4proto->nlattr_size)
273 || (l4proto->tuple_to_nlattr && !l4proto->nlattr_tuple_size))
274 return -EINVAL;
275
266 mutex_lock(&nf_ct_proto_mutex); 276 mutex_lock(&nf_ct_proto_mutex);
267 if (!nf_ct_protos[l4proto->l3proto]) { 277 if (!nf_ct_protos[l4proto->l3proto]) {
268 /* l3proto may be loaded latter. */ 278 /* l3proto may be loaded latter. */
@@ -290,6 +300,12 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
290 if (ret < 0) 300 if (ret < 0)
291 goto out_unlock; 301 goto out_unlock;
292 302
303 l4proto->nla_size = 0;
304 if (l4proto->nlattr_size)
305 l4proto->nla_size += l4proto->nlattr_size();
306 if (l4proto->nlattr_tuple_size)
307 l4proto->nla_size += 3 * l4proto->nlattr_tuple_size();
308
293 rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto], 309 rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto],
294 l4proto); 310 l4proto);
295 311
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index d3d5a7fd73ce..50dac8dbe7d8 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -669,6 +669,12 @@ static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct)
669 write_unlock_bh(&dccp_lock); 669 write_unlock_bh(&dccp_lock);
670 return 0; 670 return 0;
671} 671}
672
673static int dccp_nlattr_size(void)
674{
675 return nla_total_size(0) /* CTA_PROTOINFO_DCCP */
676 + nla_policy_len(dccp_nla_policy, CTA_PROTOINFO_DCCP_MAX + 1);
677}
672#endif 678#endif
673 679
674#ifdef CONFIG_SYSCTL 680#ifdef CONFIG_SYSCTL
@@ -749,8 +755,10 @@ static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = {
749 .print_conntrack = dccp_print_conntrack, 755 .print_conntrack = dccp_print_conntrack,
750#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 756#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
751 .to_nlattr = dccp_to_nlattr, 757 .to_nlattr = dccp_to_nlattr,
758 .nlattr_size = dccp_nlattr_size,
752 .from_nlattr = nlattr_to_dccp, 759 .from_nlattr = nlattr_to_dccp,
753 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 760 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
761 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
754 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 762 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
755 .nla_policy = nf_ct_port_nla_policy, 763 .nla_policy = nf_ct_port_nla_policy,
756#endif 764#endif
@@ -771,6 +779,7 @@ static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = {
771 .to_nlattr = dccp_to_nlattr, 779 .to_nlattr = dccp_to_nlattr,
772 .from_nlattr = nlattr_to_dccp, 780 .from_nlattr = nlattr_to_dccp,
773 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 781 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
782 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
774 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 783 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
775 .nla_policy = nf_ct_port_nla_policy, 784 .nla_policy = nf_ct_port_nla_policy,
776#endif 785#endif
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 1b279f9d6bf3..117b80112fcb 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -293,6 +293,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = {
293 .me = THIS_MODULE, 293 .me = THIS_MODULE,
294#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 294#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
295 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 295 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
296 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
296 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 297 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
297 .nla_policy = nf_ct_port_nla_policy, 298 .nla_policy = nf_ct_port_nla_policy,
298#endif 299#endif
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 74e037901199..101b4ad9e817 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -537,6 +537,12 @@ static int nlattr_to_sctp(struct nlattr *cda[], struct nf_conn *ct)
537 537
538 return 0; 538 return 0;
539} 539}
540
541static int sctp_nlattr_size(void)
542{
543 return nla_total_size(0) /* CTA_PROTOINFO_SCTP */
544 + nla_policy_len(sctp_nla_policy, CTA_PROTOINFO_SCTP_MAX + 1);
545}
540#endif 546#endif
541 547
542#ifdef CONFIG_SYSCTL 548#ifdef CONFIG_SYSCTL
@@ -668,8 +674,10 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
668 .me = THIS_MODULE, 674 .me = THIS_MODULE,
669#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 675#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
670 .to_nlattr = sctp_to_nlattr, 676 .to_nlattr = sctp_to_nlattr,
677 .nlattr_size = sctp_nlattr_size,
671 .from_nlattr = nlattr_to_sctp, 678 .from_nlattr = nlattr_to_sctp,
672 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 679 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
680 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
673 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 681 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
674 .nla_policy = nf_ct_port_nla_policy, 682 .nla_policy = nf_ct_port_nla_policy,
675#endif 683#endif
@@ -696,8 +704,10 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
696 .me = THIS_MODULE, 704 .me = THIS_MODULE,
697#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 705#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
698 .to_nlattr = sctp_to_nlattr, 706 .to_nlattr = sctp_to_nlattr,
707 .nlattr_size = sctp_nlattr_size,
699 .from_nlattr = nlattr_to_sctp, 708 .from_nlattr = nlattr_to_sctp,
700 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 709 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
710 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
701 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 711 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
702 .nla_policy = nf_ct_port_nla_policy, 712 .nla_policy = nf_ct_port_nla_policy,
703#endif 713#endif
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 0aeb8b09a1f7..b5ccf2b4b2e7 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -1184,6 +1184,17 @@ static int nlattr_to_tcp(struct nlattr *cda[], struct nf_conn *ct)
1184 1184
1185 return 0; 1185 return 0;
1186} 1186}
1187
1188static int tcp_nlattr_size(void)
1189{
1190 return nla_total_size(0) /* CTA_PROTOINFO_TCP */
1191 + nla_policy_len(tcp_nla_policy, CTA_PROTOINFO_TCP_MAX + 1);
1192}
1193
1194static int tcp_nlattr_tuple_size(void)
1195{
1196 return nla_policy_len(nf_ct_port_nla_policy, CTA_PROTO_MAX + 1);
1197}
1187#endif 1198#endif
1188 1199
1189#ifdef CONFIG_SYSCTL 1200#ifdef CONFIG_SYSCTL
@@ -1399,9 +1410,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
1399 .error = tcp_error, 1410 .error = tcp_error,
1400#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 1411#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
1401 .to_nlattr = tcp_to_nlattr, 1412 .to_nlattr = tcp_to_nlattr,
1413 .nlattr_size = tcp_nlattr_size,
1402 .from_nlattr = nlattr_to_tcp, 1414 .from_nlattr = nlattr_to_tcp,
1403 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 1415 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
1404 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 1416 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
1417 .nlattr_tuple_size = tcp_nlattr_tuple_size,
1405 .nla_policy = nf_ct_port_nla_policy, 1418 .nla_policy = nf_ct_port_nla_policy,
1406#endif 1419#endif
1407#ifdef CONFIG_SYSCTL 1420#ifdef CONFIG_SYSCTL
@@ -1429,9 +1442,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly =
1429 .error = tcp_error, 1442 .error = tcp_error,
1430#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 1443#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
1431 .to_nlattr = tcp_to_nlattr, 1444 .to_nlattr = tcp_to_nlattr,
1445 .nlattr_size = tcp_nlattr_size,
1432 .from_nlattr = nlattr_to_tcp, 1446 .from_nlattr = nlattr_to_tcp,
1433 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 1447 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
1434 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 1448 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
1449 .nlattr_tuple_size = tcp_nlattr_tuple_size,
1435 .nla_policy = nf_ct_port_nla_policy, 1450 .nla_policy = nf_ct_port_nla_policy,
1436#endif 1451#endif
1437#ifdef CONFIG_SYSCTL 1452#ifdef CONFIG_SYSCTL
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index d4021179e24e..70809d117b91 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -195,6 +195,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
195#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 195#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
196 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 196 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
197 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 197 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
198 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
198 .nla_policy = nf_ct_port_nla_policy, 199 .nla_policy = nf_ct_port_nla_policy,
199#endif 200#endif
200#ifdef CONFIG_SYSCTL 201#ifdef CONFIG_SYSCTL
@@ -222,6 +223,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly =
222#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 223#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
223 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 224 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
224 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 225 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
226 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
225 .nla_policy = nf_ct_port_nla_policy, 227 .nla_policy = nf_ct_port_nla_policy,
226#endif 228#endif
227#ifdef CONFIG_SYSCTL 229#ifdef CONFIG_SYSCTL
diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c
index 4579d8de13b1..4614696c1b88 100644
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -180,6 +180,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly =
180 .error = udplite_error, 180 .error = udplite_error,
181#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) 181#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
182 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, 182 .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
183 .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
183 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, 184 .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
184 .nla_policy = nf_ct_port_nla_policy, 185 .nla_policy = nf_ct_port_nla_policy,
185#endif 186#endif
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 4da54b0b9233..193515381970 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -44,40 +44,42 @@ struct ct_iter_state {
44 unsigned int bucket; 44 unsigned int bucket;
45}; 45};
46 46
47static struct hlist_node *ct_get_first(struct seq_file *seq) 47static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
48{ 48{
49 struct net *net = seq_file_net(seq); 49 struct net *net = seq_file_net(seq);
50 struct ct_iter_state *st = seq->private; 50 struct ct_iter_state *st = seq->private;
51 struct hlist_node *n; 51 struct hlist_nulls_node *n;
52 52
53 for (st->bucket = 0; 53 for (st->bucket = 0;
54 st->bucket < nf_conntrack_htable_size; 54 st->bucket < nf_conntrack_htable_size;
55 st->bucket++) { 55 st->bucket++) {
56 n = rcu_dereference(net->ct.hash[st->bucket].first); 56 n = rcu_dereference(net->ct.hash[st->bucket].first);
57 if (n) 57 if (!is_a_nulls(n))
58 return n; 58 return n;
59 } 59 }
60 return NULL; 60 return NULL;
61} 61}
62 62
63static struct hlist_node *ct_get_next(struct seq_file *seq, 63static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
64 struct hlist_node *head) 64 struct hlist_nulls_node *head)
65{ 65{
66 struct net *net = seq_file_net(seq); 66 struct net *net = seq_file_net(seq);
67 struct ct_iter_state *st = seq->private; 67 struct ct_iter_state *st = seq->private;
68 68
69 head = rcu_dereference(head->next); 69 head = rcu_dereference(head->next);
70 while (head == NULL) { 70 while (is_a_nulls(head)) {
71 if (++st->bucket >= nf_conntrack_htable_size) 71 if (likely(get_nulls_value(head) == st->bucket)) {
72 return NULL; 72 if (++st->bucket >= nf_conntrack_htable_size)
73 return NULL;
74 }
73 head = rcu_dereference(net->ct.hash[st->bucket].first); 75 head = rcu_dereference(net->ct.hash[st->bucket].first);
74 } 76 }
75 return head; 77 return head;
76} 78}
77 79
78static struct hlist_node *ct_get_idx(struct seq_file *seq, loff_t pos) 80static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
79{ 81{
80 struct hlist_node *head = ct_get_first(seq); 82 struct hlist_nulls_node *head = ct_get_first(seq);
81 83
82 if (head) 84 if (head)
83 while (pos && (head = ct_get_next(seq, head))) 85 while (pos && (head = ct_get_next(seq, head)))
@@ -107,67 +109,74 @@ static void ct_seq_stop(struct seq_file *s, void *v)
107/* return 0 on success, 1 in case of error */ 109/* return 0 on success, 1 in case of error */
108static int ct_seq_show(struct seq_file *s, void *v) 110static int ct_seq_show(struct seq_file *s, void *v)
109{ 111{
110 const struct nf_conntrack_tuple_hash *hash = v; 112 struct nf_conntrack_tuple_hash *hash = v;
111 const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash); 113 struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
112 const struct nf_conntrack_l3proto *l3proto; 114 const struct nf_conntrack_l3proto *l3proto;
113 const struct nf_conntrack_l4proto *l4proto; 115 const struct nf_conntrack_l4proto *l4proto;
116 int ret = 0;
114 117
115 NF_CT_ASSERT(ct); 118 NF_CT_ASSERT(ct);
119 if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
120 return 0;
116 121
117 /* we only want to print DIR_ORIGINAL */ 122 /* we only want to print DIR_ORIGINAL */
118 if (NF_CT_DIRECTION(hash)) 123 if (NF_CT_DIRECTION(hash))
119 return 0; 124 goto release;
120 125
121 l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct)); 126 l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
122 NF_CT_ASSERT(l3proto); 127 NF_CT_ASSERT(l3proto);
123 l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct)); 128 l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
124 NF_CT_ASSERT(l4proto); 129 NF_CT_ASSERT(l4proto);
125 130
131 ret = -ENOSPC;
126 if (seq_printf(s, "%-8s %u %-8s %u %ld ", 132 if (seq_printf(s, "%-8s %u %-8s %u %ld ",
127 l3proto->name, nf_ct_l3num(ct), 133 l3proto->name, nf_ct_l3num(ct),
128 l4proto->name, nf_ct_protonum(ct), 134 l4proto->name, nf_ct_protonum(ct),
129 timer_pending(&ct->timeout) 135 timer_pending(&ct->timeout)
130 ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0) 136 ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
131 return -ENOSPC; 137 goto release;
132 138
133 if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct)) 139 if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct))
134 return -ENOSPC; 140 goto release;
135 141
136 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, 142 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
137 l3proto, l4proto)) 143 l3proto, l4proto))
138 return -ENOSPC; 144 goto release;
139 145
140 if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL)) 146 if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
141 return -ENOSPC; 147 goto release;
142 148
143 if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status))) 149 if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
144 if (seq_printf(s, "[UNREPLIED] ")) 150 if (seq_printf(s, "[UNREPLIED] "))
145 return -ENOSPC; 151 goto release;
146 152
147 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, 153 if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
148 l3proto, l4proto)) 154 l3proto, l4proto))
149 return -ENOSPC; 155 goto release;
150 156
151 if (seq_print_acct(s, ct, IP_CT_DIR_REPLY)) 157 if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
152 return -ENOSPC; 158 goto release;
153 159
154 if (test_bit(IPS_ASSURED_BIT, &ct->status)) 160 if (test_bit(IPS_ASSURED_BIT, &ct->status))
155 if (seq_printf(s, "[ASSURED] ")) 161 if (seq_printf(s, "[ASSURED] "))
156 return -ENOSPC; 162 goto release;
157 163
158#if defined(CONFIG_NF_CONNTRACK_MARK) 164#if defined(CONFIG_NF_CONNTRACK_MARK)
159 if (seq_printf(s, "mark=%u ", ct->mark)) 165 if (seq_printf(s, "mark=%u ", ct->mark))
160 return -ENOSPC; 166 goto release;
161#endif 167#endif
162 168
163#ifdef CONFIG_NF_CONNTRACK_SECMARK 169#ifdef CONFIG_NF_CONNTRACK_SECMARK
164 if (seq_printf(s, "secmark=%u ", ct->secmark)) 170 if (seq_printf(s, "secmark=%u ", ct->secmark))
165 return -ENOSPC; 171 goto release;
166#endif 172#endif
167 173
168 if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use))) 174 if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
169 return -ENOSPC; 175 goto release;
170 176
177 ret = 0;
178release:
179 nf_ct_put(ct);
171 return 0; 180 return 0;
172} 181}
173 182
diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c
index 7f404cc64c83..680980954395 100644
--- a/net/netfilter/xt_connlimit.c
+++ b/net/netfilter/xt_connlimit.c
@@ -108,7 +108,7 @@ static int count_them(struct xt_connlimit_data *data,
108 const struct nf_conntrack_tuple_hash *found; 108 const struct nf_conntrack_tuple_hash *found;
109 struct xt_connlimit_conn *conn; 109 struct xt_connlimit_conn *conn;
110 struct xt_connlimit_conn *tmp; 110 struct xt_connlimit_conn *tmp;
111 const struct nf_conn *found_ct; 111 struct nf_conn *found_ct;
112 struct list_head *hash; 112 struct list_head *hash;
113 bool addit = true; 113 bool addit = true;
114 int matches = 0; 114 int matches = 0;
@@ -123,7 +123,7 @@ static int count_them(struct xt_connlimit_data *data,
123 123
124 /* check the saved connections */ 124 /* check the saved connections */
125 list_for_each_entry_safe(conn, tmp, hash, list) { 125 list_for_each_entry_safe(conn, tmp, hash, list) {
126 found = __nf_conntrack_find(&init_net, &conn->tuple); 126 found = nf_conntrack_find_get(&init_net, &conn->tuple);
127 found_ct = NULL; 127 found_ct = NULL;
128 128
129 if (found != NULL) 129 if (found != NULL)
@@ -151,6 +151,7 @@ static int count_them(struct xt_connlimit_data *data,
151 * we do not care about connections which are 151 * we do not care about connections which are
152 * closed already -> ditch it 152 * closed already -> ditch it
153 */ 153 */
154 nf_ct_put(found_ct);
154 list_del(&conn->list); 155 list_del(&conn->list);
155 kfree(conn); 156 kfree(conn);
156 continue; 157 continue;
@@ -160,6 +161,7 @@ static int count_them(struct xt_connlimit_data *data,
160 match->family)) 161 match->family))
161 /* same source network -> be counted! */ 162 /* same source network -> be counted! */
162 ++matches; 163 ++matches;
164 nf_ct_put(found_ct);
163 } 165 }
164 166
165 rcu_read_unlock(); 167 rcu_read_unlock();
diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c
index 44a234ef4439..8d28ca5848bc 100644
--- a/net/netfilter/xt_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -20,23 +20,6 @@ MODULE_DESCRIPTION("Xtables: Bridge physical device match");
20MODULE_ALIAS("ipt_physdev"); 20MODULE_ALIAS("ipt_physdev");
21MODULE_ALIAS("ip6t_physdev"); 21MODULE_ALIAS("ip6t_physdev");
22 22
23static unsigned long ifname_compare(const char *_a, const char *_b, const char *_mask)
24{
25 const unsigned long *a = (const unsigned long *)_a;
26 const unsigned long *b = (const unsigned long *)_b;
27 const unsigned long *mask = (const unsigned long *)_mask;
28 unsigned long ret;
29
30 ret = (a[0] ^ b[0]) & mask[0];
31 if (IFNAMSIZ > sizeof(unsigned long))
32 ret |= (a[1] ^ b[1]) & mask[1];
33 if (IFNAMSIZ > 2 * sizeof(unsigned long))
34 ret |= (a[2] ^ b[2]) & mask[2];
35 if (IFNAMSIZ > 3 * sizeof(unsigned long))
36 ret |= (a[3] ^ b[3]) & mask[3];
37 BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
38 return ret;
39}
40 23
41static bool 24static bool
42physdev_mt(const struct sk_buff *skb, const struct xt_match_param *par) 25physdev_mt(const struct sk_buff *skb, const struct xt_match_param *par)
@@ -85,7 +68,7 @@ physdev_mt(const struct sk_buff *skb, const struct xt_match_param *par)
85 if (!(info->bitmask & XT_PHYSDEV_OP_IN)) 68 if (!(info->bitmask & XT_PHYSDEV_OP_IN))
86 goto match_outdev; 69 goto match_outdev;
87 indev = nf_bridge->physindev ? nf_bridge->physindev->name : nulldevname; 70 indev = nf_bridge->physindev ? nf_bridge->physindev->name : nulldevname;
88 ret = ifname_compare(indev, info->physindev, info->in_mask); 71 ret = ifname_compare_aligned(indev, info->physindev, info->in_mask);
89 72
90 if (!ret ^ !(info->invert & XT_PHYSDEV_OP_IN)) 73 if (!ret ^ !(info->invert & XT_PHYSDEV_OP_IN))
91 return false; 74 return false;
@@ -95,7 +78,7 @@ match_outdev:
95 return true; 78 return true;
96 outdev = nf_bridge->physoutdev ? 79 outdev = nf_bridge->physoutdev ?
97 nf_bridge->physoutdev->name : nulldevname; 80 nf_bridge->physoutdev->name : nulldevname;
98 ret = ifname_compare(outdev, info->physoutdev, info->out_mask); 81 ret = ifname_compare_aligned(outdev, info->physoutdev, info->out_mask);
99 82
100 return (!!ret ^ !(info->invert & XT_PHYSDEV_OP_OUT)); 83 return (!!ret ^ !(info->invert & XT_PHYSDEV_OP_OUT));
101} 84}
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 6d9c58ec56ac..4e705f87969f 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1037,10 +1037,6 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
1037 unsigned char *asmptr; 1037 unsigned char *asmptr;
1038 int size; 1038 int size;
1039 1039
1040 /* Netrom empty data frame has no meaning : don't send */
1041 if (len == 0)
1042 return 0;
1043
1044 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT)) 1040 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT))
1045 return -EINVAL; 1041 return -EINVAL;
1046 1042
@@ -1086,7 +1082,11 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
1086 1082
1087 SOCK_DEBUG(sk, "NET/ROM: sendto: Addresses built.\n"); 1083 SOCK_DEBUG(sk, "NET/ROM: sendto: Addresses built.\n");
1088 1084
1089 /* Build a packet */ 1085 /* Build a packet - the conventional user limit is 236 bytes. We can
1086 do ludicrously large NetROM frames but must not overflow */
1087 if (len > 65536)
1088 return -EMSGSIZE;
1089
1090 SOCK_DEBUG(sk, "NET/ROM: sendto: building packet.\n"); 1090 SOCK_DEBUG(sk, "NET/ROM: sendto: building packet.\n");
1091 size = len + NR_NETWORK_LEN + NR_TRANSPORT_LEN; 1091 size = len + NR_NETWORK_LEN + NR_TRANSPORT_LEN;
1092 1092
@@ -1171,11 +1171,6 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
1171 skb_reset_transport_header(skb); 1171 skb_reset_transport_header(skb);
1172 copied = skb->len; 1172 copied = skb->len;
1173 1173
1174 /* NetRom empty data frame has no meaning : ignore it */
1175 if (copied == 0) {
1176 goto out;
1177 }
1178
1179 if (copied > size) { 1174 if (copied > size) {
1180 copied = size; 1175 copied = size;
1181 msg->msg_flags |= MSG_TRUNC; 1176 msg->msg_flags |= MSG_TRUNC;
@@ -1191,7 +1186,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
1191 1186
1192 msg->msg_namelen = sizeof(*sax); 1187 msg->msg_namelen = sizeof(*sax);
1193 1188
1194out: skb_free_datagram(sk, skb); 1189 skb_free_datagram(sk, skb);
1195 1190
1196 release_sock(sk); 1191 release_sock(sk);
1197 return copied; 1192 return copied;
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 650139626581..0f36e8d59b29 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1124,6 +1124,10 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock,
1124 1124
1125 /* Build a packet */ 1125 /* Build a packet */
1126 SOCK_DEBUG(sk, "ROSE: sendto: building packet.\n"); 1126 SOCK_DEBUG(sk, "ROSE: sendto: building packet.\n");
1127 /* Sanity check the packet size */
1128 if (len > 65535)
1129 return -EMSGSIZE;
1130
1127 size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN; 1131 size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN;
1128 1132
1129 if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL) 1133 if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL)
diff --git a/net/socket.c b/net/socket.c
index af0205ff56f2..0b14b79c03af 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -328,7 +328,7 @@ static char *sockfs_dname(struct dentry *dentry, char *buffer, int buflen)
328 dentry->d_inode->i_ino); 328 dentry->d_inode->i_ino);
329} 329}
330 330
331static struct dentry_operations sockfs_dentry_operations = { 331static const struct dentry_operations sockfs_dentry_operations = {
332 .d_delete = sockfs_delete_dentry, 332 .d_delete = sockfs_delete_dentry,
333 .d_dname = sockfs_dname, 333 .d_dname = sockfs_dname,
334}; 334};
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 577385a4a5dc..9ced0628d69c 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -480,7 +480,7 @@ static int rpc_delete_dentry(struct dentry *dentry)
480 return 1; 480 return 1;
481} 481}
482 482
483static struct dentry_operations rpc_dentry_operations = { 483static const struct dentry_operations rpc_dentry_operations = {
484 .d_delete = rpc_delete_dentry, 484 .d_delete = rpc_delete_dentry,
485}; 485};
486 486
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index 092ae6faccca..3c3bc9e579ed 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -10,51 +10,19 @@ config CFG80211_REG_DEBUG
10 10
11 If unsure, say N. 11 If unsure, say N.
12 12
13config NL80211
14 bool "nl80211 new netlink interface support"
15 depends on CFG80211
16 default y
17 ---help---
18 This option turns on the new netlink interface
19 (nl80211) support in cfg80211.
20
21 If =n, drivers using mac80211 will be configured via
22 wireless extension support provided by that subsystem.
23
24 If unsure, say Y.
25
26config WIRELESS_OLD_REGULATORY 13config WIRELESS_OLD_REGULATORY
27 bool "Old wireless static regulatory definitions" 14 bool "Old wireless static regulatory definitions"
28 default y 15 default n
29 ---help--- 16 ---help---
30 This option enables the old static regulatory information 17 This option enables the old static regulatory information
31 and uses it within the new framework. This is available 18 and uses it within the new framework. This option is available
32 temporarily as an option to help prevent immediate issues 19 for historical reasons and it is advised to leave it off.
33 due to the switch to the new regulatory framework which 20
34 does require a new userspace application which has the 21 For details see:
35 database of regulatory information (CRDA) and another for 22
36 setting regulatory domains (iw). 23 http://wireless.kernel.org/en/developers/Regulatory
37 24
38 For more information see: 25 Say N and if you say Y, please tell us why. The default is N.
39
40 http://wireless.kernel.org/en/developers/Regulatory/CRDA
41 http://wireless.kernel.org/en/users/Documentation/iw
42
43 It is important to note though that if you *do* have CRDA present
44 and if this option is enabled CRDA *will* be called to update the
45 regulatory domain (for US and JP only). Support for letting the user
46 set the regulatory domain through iw is also supported. This option
47 mainly exists to leave around for a kernel release some old static
48 regulatory domains that were defined and to keep around the old
49 ieee80211_regdom module parameter. This is being phased out and you
50 should stop using them ASAP.
51
52 Note: You will need CRDA if you want 802.11d support
53
54 Say Y unless you have installed a new userspace application.
55 Also say Y if have one currently depending on the ieee80211_regdom
56 module parameter and cannot port it to use the new userspace
57 interfaces.
58 26
59config WIRELESS_EXT 27config WIRELESS_EXT
60 bool "Wireless extensions" 28 bool "Wireless extensions"
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index dad43c24f695..6d1e7b27b752 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -5,8 +5,7 @@ obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
5obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o 5obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
6obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o 6obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
7 7
8cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o 8cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o mlme.o
9cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o 9cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o
10cfg80211-$(CONFIG_NL80211) += nl80211.o
11 10
12ccflags-y += -D__CHECK_ENDIAN__ 11ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 17fe39049740..d1f556535f6d 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -87,7 +87,7 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
87} 87}
88 88
89/* requires cfg80211_mutex to be held! */ 89/* requires cfg80211_mutex to be held! */
90static struct cfg80211_registered_device * 90struct cfg80211_registered_device *
91__cfg80211_drv_from_info(struct genl_info *info) 91__cfg80211_drv_from_info(struct genl_info *info)
92{ 92{
93 int ifindex; 93 int ifindex;
@@ -176,13 +176,14 @@ void cfg80211_put_dev(struct cfg80211_registered_device *drv)
176 mutex_unlock(&drv->mtx); 176 mutex_unlock(&drv->mtx);
177} 177}
178 178
179/* requires cfg80211_mutex to be held */
179int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, 180int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
180 char *newname) 181 char *newname)
181{ 182{
182 struct cfg80211_registered_device *drv; 183 struct cfg80211_registered_device *drv;
183 int wiphy_idx, taken = -1, result, digits; 184 int wiphy_idx, taken = -1, result, digits;
184 185
185 mutex_lock(&cfg80211_mutex); 186 assert_cfg80211_lock();
186 187
187 /* prohibit calling the thing phy%d when %d is not its number */ 188 /* prohibit calling the thing phy%d when %d is not its number */
188 sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken); 189 sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
@@ -195,30 +196,23 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
195 * deny the name if it is phy<idx> where <idx> is printed 196 * deny the name if it is phy<idx> where <idx> is printed
196 * without leading zeroes. taken == strlen(newname) here 197 * without leading zeroes. taken == strlen(newname) here
197 */ 198 */
198 result = -EINVAL;
199 if (taken == strlen(PHY_NAME) + digits) 199 if (taken == strlen(PHY_NAME) + digits)
200 goto out_unlock; 200 return -EINVAL;
201 } 201 }
202 202
203 203
204 /* Ignore nop renames */ 204 /* Ignore nop renames */
205 result = 0;
206 if (strcmp(newname, dev_name(&rdev->wiphy.dev)) == 0) 205 if (strcmp(newname, dev_name(&rdev->wiphy.dev)) == 0)
207 goto out_unlock; 206 return 0;
208 207
209 /* Ensure another device does not already have this name. */ 208 /* Ensure another device does not already have this name. */
210 list_for_each_entry(drv, &cfg80211_drv_list, list) { 209 list_for_each_entry(drv, &cfg80211_drv_list, list)
211 result = -EINVAL;
212 if (strcmp(newname, dev_name(&drv->wiphy.dev)) == 0) 210 if (strcmp(newname, dev_name(&drv->wiphy.dev)) == 0)
213 goto out_unlock; 211 return -EINVAL;
214 }
215 212
216 /* this will only check for collisions in sysfs
217 * which is not even always compiled in.
218 */
219 result = device_rename(&rdev->wiphy.dev, newname); 213 result = device_rename(&rdev->wiphy.dev, newname);
220 if (result) 214 if (result)
221 goto out_unlock; 215 return result;
222 216
223 if (rdev->wiphy.debugfsdir && 217 if (rdev->wiphy.debugfsdir &&
224 !debugfs_rename(rdev->wiphy.debugfsdir->d_parent, 218 !debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
@@ -228,13 +222,9 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
228 printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n", 222 printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
229 newname); 223 newname);
230 224
231 result = 0; 225 nl80211_notify_dev_rename(rdev);
232out_unlock:
233 mutex_unlock(&cfg80211_mutex);
234 if (result == 0)
235 nl80211_notify_dev_rename(rdev);
236 226
237 return result; 227 return 0;
238} 228}
239 229
240/* exported functions */ 230/* exported functions */
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 6acd483a61f8..d43daa236ef9 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -90,6 +90,8 @@ struct cfg80211_internal_bss {
90 struct rb_node rbn; 90 struct rb_node rbn;
91 unsigned long ts; 91 unsigned long ts;
92 struct kref ref; 92 struct kref ref;
93 bool hold;
94
93 /* must be last because of priv member */ 95 /* must be last because of priv member */
94 struct cfg80211_bss pub; 96 struct cfg80211_bss pub;
95}; 97};
@@ -97,6 +99,9 @@ struct cfg80211_internal_bss {
97struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx); 99struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx);
98int get_wiphy_idx(struct wiphy *wiphy); 100int get_wiphy_idx(struct wiphy *wiphy);
99 101
102struct cfg80211_registered_device *
103__cfg80211_drv_from_info(struct genl_info *info);
104
100/* 105/*
101 * This function returns a pointer to the driver 106 * This function returns a pointer to the driver
102 * that the genl_info item that is passed refers to. 107 * that the genl_info item that is passed refers to.
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
new file mode 100644
index 000000000000..bec5721b6f99
--- /dev/null
+++ b/net/wireless/mlme.c
@@ -0,0 +1,46 @@
1/*
2 * cfg80211 MLME SAP interface
3 *
4 * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
5 */
6
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/netdevice.h>
10#include <linux/nl80211.h>
11#include <net/cfg80211.h>
12#include "core.h"
13#include "nl80211.h"
14
15void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
16{
17 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
18 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
19 nl80211_send_rx_auth(rdev, dev, buf, len);
20}
21EXPORT_SYMBOL(cfg80211_send_rx_auth);
22
23void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
24{
25 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
26 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
27 nl80211_send_rx_assoc(rdev, dev, buf, len);
28}
29EXPORT_SYMBOL(cfg80211_send_rx_assoc);
30
31void cfg80211_send_rx_deauth(struct net_device *dev, const u8 *buf, size_t len)
32{
33 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
34 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
35 nl80211_send_rx_deauth(rdev, dev, buf, len);
36}
37EXPORT_SYMBOL(cfg80211_send_rx_deauth);
38
39void cfg80211_send_rx_disassoc(struct net_device *dev, const u8 *buf,
40 size_t len)
41{
42 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
43 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
44 nl80211_send_rx_disassoc(rdev, dev, buf, len);
45}
46EXPORT_SYMBOL(cfg80211_send_rx_disassoc);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ab9d8f14e151..353e1a4ece83 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -111,6 +111,11 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
111 .len = IEEE80211_MAX_DATA_LEN }, 111 .len = IEEE80211_MAX_DATA_LEN },
112 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, 112 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
113 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, 113 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
114
115 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
116 .len = IEEE80211_MAX_SSID_LEN },
117 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
118 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
114}; 119};
115 120
116/* message building helper */ 121/* message building helper */
@@ -131,6 +136,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
131 struct nlattr *nl_freqs, *nl_freq; 136 struct nlattr *nl_freqs, *nl_freq;
132 struct nlattr *nl_rates, *nl_rate; 137 struct nlattr *nl_rates, *nl_rate;
133 struct nlattr *nl_modes; 138 struct nlattr *nl_modes;
139 struct nlattr *nl_cmds;
134 enum ieee80211_band band; 140 enum ieee80211_band band;
135 struct ieee80211_channel *chan; 141 struct ieee80211_channel *chan;
136 struct ieee80211_rate *rate; 142 struct ieee80211_rate *rate;
@@ -242,6 +248,35 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
242 } 248 }
243 nla_nest_end(msg, nl_bands); 249 nla_nest_end(msg, nl_bands);
244 250
251 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
252 if (!nl_cmds)
253 goto nla_put_failure;
254
255 i = 0;
256#define CMD(op, n) \
257 do { \
258 if (dev->ops->op) { \
259 i++; \
260 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
261 } \
262 } while (0)
263
264 CMD(add_virtual_intf, NEW_INTERFACE);
265 CMD(change_virtual_intf, SET_INTERFACE);
266 CMD(add_key, NEW_KEY);
267 CMD(add_beacon, NEW_BEACON);
268 CMD(add_station, NEW_STATION);
269 CMD(add_mpath, NEW_MPATH);
270 CMD(set_mesh_params, SET_MESH_PARAMS);
271 CMD(change_bss, SET_BSS);
272 CMD(auth, AUTHENTICATE);
273 CMD(assoc, ASSOCIATE);
274 CMD(deauth, DEAUTHENTICATE);
275 CMD(disassoc, DISASSOCIATE);
276
277#undef CMD
278 nla_nest_end(msg, nl_cmds);
279
245 return genlmsg_end(msg, hdr); 280 return genlmsg_end(msg, hdr);
246 281
247 nla_put_failure: 282 nla_put_failure:
@@ -331,16 +366,26 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
331 int result = 0, rem_txq_params = 0; 366 int result = 0, rem_txq_params = 0;
332 struct nlattr *nl_txq_params; 367 struct nlattr *nl_txq_params;
333 368
334 rdev = cfg80211_get_dev_from_info(info); 369 rtnl_lock();
335 if (IS_ERR(rdev)) 370
336 return PTR_ERR(rdev); 371 mutex_lock(&cfg80211_mutex);
337 372
338 if (info->attrs[NL80211_ATTR_WIPHY_NAME]) { 373 rdev = __cfg80211_drv_from_info(info);
374 if (IS_ERR(rdev)) {
375 result = PTR_ERR(rdev);
376 goto unlock;
377 }
378
379 mutex_lock(&rdev->mtx);
380
381 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
339 result = cfg80211_dev_rename( 382 result = cfg80211_dev_rename(
340 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); 383 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
341 if (result) 384
342 goto bad_res; 385 mutex_unlock(&cfg80211_mutex);
343 } 386
387 if (result)
388 goto bad_res;
344 389
345 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { 390 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
346 struct ieee80211_txq_params txq_params; 391 struct ieee80211_txq_params txq_params;
@@ -436,7 +481,9 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
436 481
437 482
438 bad_res: 483 bad_res:
439 cfg80211_put_dev(rdev); 484 mutex_unlock(&rdev->mtx);
485 unlock:
486 rtnl_unlock();
440 return result; 487 return result;
441} 488}
442 489
@@ -572,21 +619,31 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
572 enum nl80211_iftype type; 619 enum nl80211_iftype type;
573 struct net_device *dev; 620 struct net_device *dev;
574 u32 _flags, *flags = NULL; 621 u32 _flags, *flags = NULL;
622 bool change = false;
575 623
576 memset(&params, 0, sizeof(params)); 624 memset(&params, 0, sizeof(params));
577 625
626 rtnl_lock();
627
578 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 628 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
579 if (err) 629 if (err)
580 return err; 630 goto unlock_rtnl;
631
581 ifindex = dev->ifindex; 632 ifindex = dev->ifindex;
582 type = dev->ieee80211_ptr->iftype; 633 type = dev->ieee80211_ptr->iftype;
583 dev_put(dev); 634 dev_put(dev);
584 635
585 err = -EINVAL;
586 if (info->attrs[NL80211_ATTR_IFTYPE]) { 636 if (info->attrs[NL80211_ATTR_IFTYPE]) {
587 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); 637 enum nl80211_iftype ntype;
588 if (type > NL80211_IFTYPE_MAX) 638
639 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
640 if (type != ntype)
641 change = true;
642 type = ntype;
643 if (type > NL80211_IFTYPE_MAX) {
644 err = -EINVAL;
589 goto unlock; 645 goto unlock;
646 }
590 } 647 }
591 648
592 if (!drv->ops->change_virtual_intf || 649 if (!drv->ops->change_virtual_intf ||
@@ -602,6 +659,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
602 } 659 }
603 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); 660 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
604 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); 661 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
662 change = true;
605 } 663 }
606 664
607 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { 665 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
@@ -611,20 +669,26 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
611 } 669 }
612 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], 670 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
613 &_flags); 671 &_flags);
614 if (!err) 672 if (err)
615 flags = &_flags; 673 goto unlock;
674
675 flags = &_flags;
676 change = true;
616 } 677 }
617 rtnl_lock(); 678
618 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, 679 if (change)
619 type, flags, &params); 680 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
681 type, flags, &params);
682 else
683 err = 0;
620 684
621 dev = __dev_get_by_index(&init_net, ifindex); 685 dev = __dev_get_by_index(&init_net, ifindex);
622 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type)); 686 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
623 687
624 rtnl_unlock();
625
626 unlock: 688 unlock:
627 cfg80211_put_dev(drv); 689 cfg80211_put_dev(drv);
690 unlock_rtnl:
691 rtnl_unlock();
628 return err; 692 return err;
629} 693}
630 694
@@ -647,9 +711,13 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
647 return -EINVAL; 711 return -EINVAL;
648 } 712 }
649 713
714 rtnl_lock();
715
650 drv = cfg80211_get_dev_from_info(info); 716 drv = cfg80211_get_dev_from_info(info);
651 if (IS_ERR(drv)) 717 if (IS_ERR(drv)) {
652 return PTR_ERR(drv); 718 err = PTR_ERR(drv);
719 goto unlock_rtnl;
720 }
653 721
654 if (!drv->ops->add_virtual_intf || 722 if (!drv->ops->add_virtual_intf ||
655 !(drv->wiphy.interface_modes & (1 << type))) { 723 !(drv->wiphy.interface_modes & (1 << type))) {
@@ -663,18 +731,17 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
663 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); 731 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
664 } 732 }
665 733
666 rtnl_lock();
667 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? 734 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
668 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, 735 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
669 &flags); 736 &flags);
670 err = drv->ops->add_virtual_intf(&drv->wiphy, 737 err = drv->ops->add_virtual_intf(&drv->wiphy,
671 nla_data(info->attrs[NL80211_ATTR_IFNAME]), 738 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
672 type, err ? NULL : &flags, &params); 739 type, err ? NULL : &flags, &params);
673 rtnl_unlock();
674
675 740
676 unlock: 741 unlock:
677 cfg80211_put_dev(drv); 742 cfg80211_put_dev(drv);
743 unlock_rtnl:
744 rtnl_unlock();
678 return err; 745 return err;
679} 746}
680 747
@@ -684,9 +751,11 @@ static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
684 int ifindex, err; 751 int ifindex, err;
685 struct net_device *dev; 752 struct net_device *dev;
686 753
754 rtnl_lock();
755
687 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 756 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
688 if (err) 757 if (err)
689 return err; 758 goto unlock_rtnl;
690 ifindex = dev->ifindex; 759 ifindex = dev->ifindex;
691 dev_put(dev); 760 dev_put(dev);
692 761
@@ -695,12 +764,12 @@ static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
695 goto out; 764 goto out;
696 } 765 }
697 766
698 rtnl_lock();
699 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); 767 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
700 rtnl_unlock();
701 768
702 out: 769 out:
703 cfg80211_put_dev(drv); 770 cfg80211_put_dev(drv);
771 unlock_rtnl:
772 rtnl_unlock();
704 return err; 773 return err;
705} 774}
706 775
@@ -752,9 +821,11 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
752 if (info->attrs[NL80211_ATTR_MAC]) 821 if (info->attrs[NL80211_ATTR_MAC])
753 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); 822 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
754 823
824 rtnl_lock();
825
755 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 826 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
756 if (err) 827 if (err)
757 return err; 828 goto unlock_rtnl;
758 829
759 if (!drv->ops->get_key) { 830 if (!drv->ops->get_key) {
760 err = -EOPNOTSUPP; 831 err = -EOPNOTSUPP;
@@ -782,10 +853,8 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
782 if (mac_addr) 853 if (mac_addr)
783 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); 854 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
784 855
785 rtnl_lock();
786 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, 856 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
787 &cookie, get_key_callback); 857 &cookie, get_key_callback);
788 rtnl_unlock();
789 858
790 if (err) 859 if (err)
791 goto out; 860 goto out;
@@ -803,6 +872,9 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
803 out: 872 out:
804 cfg80211_put_dev(drv); 873 cfg80211_put_dev(drv);
805 dev_put(dev); 874 dev_put(dev);
875 unlock_rtnl:
876 rtnl_unlock();
877
806 return err; 878 return err;
807} 879}
808 880
@@ -831,9 +903,11 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
831 !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) 903 !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
832 return -EINVAL; 904 return -EINVAL;
833 905
906 rtnl_lock();
907
834 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 908 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
835 if (err) 909 if (err)
836 return err; 910 goto unlock_rtnl;
837 911
838 if (info->attrs[NL80211_ATTR_KEY_DEFAULT]) 912 if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
839 func = drv->ops->set_default_key; 913 func = drv->ops->set_default_key;
@@ -845,13 +919,15 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
845 goto out; 919 goto out;
846 } 920 }
847 921
848 rtnl_lock();
849 err = func(&drv->wiphy, dev, key_idx); 922 err = func(&drv->wiphy, dev, key_idx);
850 rtnl_unlock();
851 923
852 out: 924 out:
853 cfg80211_put_dev(drv); 925 cfg80211_put_dev(drv);
854 dev_put(dev); 926 dev_put(dev);
927
928 unlock_rtnl:
929 rtnl_unlock();
930
855 return err; 931 return err;
856} 932}
857 933
@@ -921,22 +997,25 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
921 return -EINVAL; 997 return -EINVAL;
922 } 998 }
923 999
1000 rtnl_lock();
1001
924 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1002 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
925 if (err) 1003 if (err)
926 return err; 1004 goto unlock_rtnl;
927 1005
928 if (!drv->ops->add_key) { 1006 if (!drv->ops->add_key) {
929 err = -EOPNOTSUPP; 1007 err = -EOPNOTSUPP;
930 goto out; 1008 goto out;
931 } 1009 }
932 1010
933 rtnl_lock();
934 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params); 1011 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params);
935 rtnl_unlock();
936 1012
937 out: 1013 out:
938 cfg80211_put_dev(drv); 1014 cfg80211_put_dev(drv);
939 dev_put(dev); 1015 dev_put(dev);
1016 unlock_rtnl:
1017 rtnl_unlock();
1018
940 return err; 1019 return err;
941} 1020}
942 1021
@@ -957,22 +1036,26 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
957 if (info->attrs[NL80211_ATTR_MAC]) 1036 if (info->attrs[NL80211_ATTR_MAC])
958 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); 1037 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
959 1038
1039 rtnl_lock();
1040
960 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1041 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
961 if (err) 1042 if (err)
962 return err; 1043 goto unlock_rtnl;
963 1044
964 if (!drv->ops->del_key) { 1045 if (!drv->ops->del_key) {
965 err = -EOPNOTSUPP; 1046 err = -EOPNOTSUPP;
966 goto out; 1047 goto out;
967 } 1048 }
968 1049
969 rtnl_lock();
970 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); 1050 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
971 rtnl_unlock();
972 1051
973 out: 1052 out:
974 cfg80211_put_dev(drv); 1053 cfg80211_put_dev(drv);
975 dev_put(dev); 1054 dev_put(dev);
1055
1056 unlock_rtnl:
1057 rtnl_unlock();
1058
976 return err; 1059 return err;
977} 1060}
978 1061
@@ -986,9 +1069,16 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
986 struct beacon_parameters params; 1069 struct beacon_parameters params;
987 int haveinfo = 0; 1070 int haveinfo = 0;
988 1071
1072 rtnl_lock();
1073
989 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1074 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
990 if (err) 1075 if (err)
991 return err; 1076 goto unlock_rtnl;
1077
1078 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1079 err = -EOPNOTSUPP;
1080 goto out;
1081 }
992 1082
993 switch (info->genlhdr->cmd) { 1083 switch (info->genlhdr->cmd) {
994 case NL80211_CMD_NEW_BEACON: 1084 case NL80211_CMD_NEW_BEACON:
@@ -1049,13 +1139,14 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1049 goto out; 1139 goto out;
1050 } 1140 }
1051 1141
1052 rtnl_lock();
1053 err = call(&drv->wiphy, dev, &params); 1142 err = call(&drv->wiphy, dev, &params);
1054 rtnl_unlock();
1055 1143
1056 out: 1144 out:
1057 cfg80211_put_dev(drv); 1145 cfg80211_put_dev(drv);
1058 dev_put(dev); 1146 dev_put(dev);
1147 unlock_rtnl:
1148 rtnl_unlock();
1149
1059 return err; 1150 return err;
1060} 1151}
1061 1152
@@ -1065,22 +1156,29 @@ static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1065 int err; 1156 int err;
1066 struct net_device *dev; 1157 struct net_device *dev;
1067 1158
1159 rtnl_lock();
1160
1068 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1161 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1069 if (err) 1162 if (err)
1070 return err; 1163 goto unlock_rtnl;
1071 1164
1072 if (!drv->ops->del_beacon) { 1165 if (!drv->ops->del_beacon) {
1073 err = -EOPNOTSUPP; 1166 err = -EOPNOTSUPP;
1074 goto out; 1167 goto out;
1075 } 1168 }
1076 1169
1077 rtnl_lock(); 1170 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1171 err = -EOPNOTSUPP;
1172 goto out;
1173 }
1078 err = drv->ops->del_beacon(&drv->wiphy, dev); 1174 err = drv->ops->del_beacon(&drv->wiphy, dev);
1079 rtnl_unlock();
1080 1175
1081 out: 1176 out:
1082 cfg80211_put_dev(drv); 1177 cfg80211_put_dev(drv);
1083 dev_put(dev); 1178 dev_put(dev);
1179 unlock_rtnl:
1180 rtnl_unlock();
1181
1084 return err; 1182 return err;
1085} 1183}
1086 1184
@@ -1246,30 +1344,32 @@ static int nl80211_dump_station(struct sk_buff *skb,
1246 return -EINVAL; 1344 return -EINVAL;
1247 } 1345 }
1248 1346
1249 netdev = dev_get_by_index(&init_net, ifidx); 1347 rtnl_lock();
1250 if (!netdev) 1348
1251 return -ENODEV; 1349 netdev = __dev_get_by_index(&init_net, ifidx);
1350 if (!netdev) {
1351 err = -ENODEV;
1352 goto out_rtnl;
1353 }
1252 1354
1253 dev = cfg80211_get_dev_from_ifindex(ifidx); 1355 dev = cfg80211_get_dev_from_ifindex(ifidx);
1254 if (IS_ERR(dev)) { 1356 if (IS_ERR(dev)) {
1255 err = PTR_ERR(dev); 1357 err = PTR_ERR(dev);
1256 goto out_put_netdev; 1358 goto out_rtnl;
1257 } 1359 }
1258 1360
1259 if (!dev->ops->dump_station) { 1361 if (!dev->ops->dump_station) {
1260 err = -ENOSYS; 1362 err = -EOPNOTSUPP;
1261 goto out_err; 1363 goto out_err;
1262 } 1364 }
1263 1365
1264 rtnl_lock();
1265
1266 while (1) { 1366 while (1) {
1267 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, 1367 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1268 mac_addr, &sinfo); 1368 mac_addr, &sinfo);
1269 if (err == -ENOENT) 1369 if (err == -ENOENT)
1270 break; 1370 break;
1271 if (err) 1371 if (err)
1272 goto out_err_rtnl; 1372 goto out_err;
1273 1373
1274 if (nl80211_send_station(skb, 1374 if (nl80211_send_station(skb,
1275 NETLINK_CB(cb->skb).pid, 1375 NETLINK_CB(cb->skb).pid,
@@ -1285,12 +1385,10 @@ static int nl80211_dump_station(struct sk_buff *skb,
1285 out: 1385 out:
1286 cb->args[1] = sta_idx; 1386 cb->args[1] = sta_idx;
1287 err = skb->len; 1387 err = skb->len;
1288 out_err_rtnl:
1289 rtnl_unlock();
1290 out_err: 1388 out_err:
1291 cfg80211_put_dev(dev); 1389 cfg80211_put_dev(dev);
1292 out_put_netdev: 1390 out_rtnl:
1293 dev_put(netdev); 1391 rtnl_unlock();
1294 1392
1295 return err; 1393 return err;
1296} 1394}
@@ -1311,19 +1409,18 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1311 1409
1312 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); 1410 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1313 1411
1412 rtnl_lock();
1413
1314 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1414 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1315 if (err) 1415 if (err)
1316 return err; 1416 goto out_rtnl;
1317 1417
1318 if (!drv->ops->get_station) { 1418 if (!drv->ops->get_station) {
1319 err = -EOPNOTSUPP; 1419 err = -EOPNOTSUPP;
1320 goto out; 1420 goto out;
1321 } 1421 }
1322 1422
1323 rtnl_lock();
1324 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); 1423 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
1325 rtnl_unlock();
1326
1327 if (err) 1424 if (err)
1328 goto out; 1425 goto out;
1329 1426
@@ -1340,10 +1437,12 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1340 1437
1341 out_free: 1438 out_free:
1342 nlmsg_free(msg); 1439 nlmsg_free(msg);
1343
1344 out: 1440 out:
1345 cfg80211_put_dev(drv); 1441 cfg80211_put_dev(drv);
1346 dev_put(dev); 1442 dev_put(dev);
1443 out_rtnl:
1444 rtnl_unlock();
1445
1347 return err; 1446 return err;
1348} 1447}
1349 1448
@@ -1411,9 +1510,11 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1411 params.plink_action = 1510 params.plink_action =
1412 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); 1511 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1413 1512
1513 rtnl_lock();
1514
1414 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1515 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1415 if (err) 1516 if (err)
1416 return err; 1517 goto out_rtnl;
1417 1518
1418 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan); 1519 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1419 if (err) 1520 if (err)
@@ -1424,15 +1525,16 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1424 goto out; 1525 goto out;
1425 } 1526 }
1426 1527
1427 rtnl_lock();
1428 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params); 1528 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
1429 rtnl_unlock();
1430 1529
1431 out: 1530 out:
1432 if (params.vlan) 1531 if (params.vlan)
1433 dev_put(params.vlan); 1532 dev_put(params.vlan);
1434 cfg80211_put_dev(drv); 1533 cfg80211_put_dev(drv);
1435 dev_put(dev); 1534 dev_put(dev);
1535 out_rtnl:
1536 rtnl_unlock();
1537
1436 return err; 1538 return err;
1437} 1539}
1438 1540
@@ -1474,9 +1576,11 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1474 &params.station_flags)) 1576 &params.station_flags))
1475 return -EINVAL; 1577 return -EINVAL;
1476 1578
1579 rtnl_lock();
1580
1477 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1581 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1478 if (err) 1582 if (err)
1479 return err; 1583 goto out_rtnl;
1480 1584
1481 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan); 1585 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1482 if (err) 1586 if (err)
@@ -1487,15 +1591,21 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1487 goto out; 1591 goto out;
1488 } 1592 }
1489 1593
1490 rtnl_lock(); 1594 if (!netif_running(dev)) {
1595 err = -ENETDOWN;
1596 goto out;
1597 }
1598
1491 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params); 1599 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
1492 rtnl_unlock();
1493 1600
1494 out: 1601 out:
1495 if (params.vlan) 1602 if (params.vlan)
1496 dev_put(params.vlan); 1603 dev_put(params.vlan);
1497 cfg80211_put_dev(drv); 1604 cfg80211_put_dev(drv);
1498 dev_put(dev); 1605 dev_put(dev);
1606 out_rtnl:
1607 rtnl_unlock();
1608
1499 return err; 1609 return err;
1500} 1610}
1501 1611
@@ -1509,22 +1619,25 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1509 if (info->attrs[NL80211_ATTR_MAC]) 1619 if (info->attrs[NL80211_ATTR_MAC])
1510 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); 1620 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1511 1621
1622 rtnl_lock();
1623
1512 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1624 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1513 if (err) 1625 if (err)
1514 return err; 1626 goto out_rtnl;
1515 1627
1516 if (!drv->ops->del_station) { 1628 if (!drv->ops->del_station) {
1517 err = -EOPNOTSUPP; 1629 err = -EOPNOTSUPP;
1518 goto out; 1630 goto out;
1519 } 1631 }
1520 1632
1521 rtnl_lock();
1522 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); 1633 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1523 rtnl_unlock();
1524 1634
1525 out: 1635 out:
1526 cfg80211_put_dev(drv); 1636 cfg80211_put_dev(drv);
1527 dev_put(dev); 1637 dev_put(dev);
1638 out_rtnl:
1639 rtnl_unlock();
1640
1528 return err; 1641 return err;
1529} 1642}
1530 1643
@@ -1605,22 +1718,29 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
1605 return -EINVAL; 1718 return -EINVAL;
1606 } 1719 }
1607 1720
1608 netdev = dev_get_by_index(&init_net, ifidx); 1721 rtnl_lock();
1609 if (!netdev) 1722
1610 return -ENODEV; 1723 netdev = __dev_get_by_index(&init_net, ifidx);
1724 if (!netdev) {
1725 err = -ENODEV;
1726 goto out_rtnl;
1727 }
1611 1728
1612 dev = cfg80211_get_dev_from_ifindex(ifidx); 1729 dev = cfg80211_get_dev_from_ifindex(ifidx);
1613 if (IS_ERR(dev)) { 1730 if (IS_ERR(dev)) {
1614 err = PTR_ERR(dev); 1731 err = PTR_ERR(dev);
1615 goto out_put_netdev; 1732 goto out_rtnl;
1616 } 1733 }
1617 1734
1618 if (!dev->ops->dump_mpath) { 1735 if (!dev->ops->dump_mpath) {
1619 err = -ENOSYS; 1736 err = -EOPNOTSUPP;
1620 goto out_err; 1737 goto out_err;
1621 } 1738 }
1622 1739
1623 rtnl_lock(); 1740 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1741 err = -EOPNOTSUPP;
1742 goto out;
1743 }
1624 1744
1625 while (1) { 1745 while (1) {
1626 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, 1746 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
@@ -1628,7 +1748,7 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
1628 if (err == -ENOENT) 1748 if (err == -ENOENT)
1629 break; 1749 break;
1630 if (err) 1750 if (err)
1631 goto out_err_rtnl; 1751 goto out_err;
1632 1752
1633 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, 1753 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1634 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1754 cb->nlh->nlmsg_seq, NLM_F_MULTI,
@@ -1643,12 +1763,10 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
1643 out: 1763 out:
1644 cb->args[1] = path_idx; 1764 cb->args[1] = path_idx;
1645 err = skb->len; 1765 err = skb->len;
1646 out_err_rtnl:
1647 rtnl_unlock();
1648 out_err: 1766 out_err:
1649 cfg80211_put_dev(dev); 1767 cfg80211_put_dev(dev);
1650 out_put_netdev: 1768 out_rtnl:
1651 dev_put(netdev); 1769 rtnl_unlock();
1652 1770
1653 return err; 1771 return err;
1654} 1772}
@@ -1670,19 +1788,23 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1670 1788
1671 dst = nla_data(info->attrs[NL80211_ATTR_MAC]); 1789 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1672 1790
1791 rtnl_lock();
1792
1673 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1793 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1674 if (err) 1794 if (err)
1675 return err; 1795 goto out_rtnl;
1676 1796
1677 if (!drv->ops->get_mpath) { 1797 if (!drv->ops->get_mpath) {
1678 err = -EOPNOTSUPP; 1798 err = -EOPNOTSUPP;
1679 goto out; 1799 goto out;
1680 } 1800 }
1681 1801
1682 rtnl_lock(); 1802 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1683 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); 1803 err = -EOPNOTSUPP;
1684 rtnl_unlock(); 1804 goto out;
1805 }
1685 1806
1807 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1686 if (err) 1808 if (err)
1687 goto out; 1809 goto out;
1688 1810
@@ -1699,10 +1821,12 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1699 1821
1700 out_free: 1822 out_free:
1701 nlmsg_free(msg); 1823 nlmsg_free(msg);
1702
1703 out: 1824 out:
1704 cfg80211_put_dev(drv); 1825 cfg80211_put_dev(drv);
1705 dev_put(dev); 1826 dev_put(dev);
1827 out_rtnl:
1828 rtnl_unlock();
1829
1706 return err; 1830 return err;
1707} 1831}
1708 1832
@@ -1723,22 +1847,35 @@ static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1723 dst = nla_data(info->attrs[NL80211_ATTR_MAC]); 1847 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1724 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); 1848 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1725 1849
1850 rtnl_lock();
1851
1726 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1852 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1727 if (err) 1853 if (err)
1728 return err; 1854 goto out_rtnl;
1729 1855
1730 if (!drv->ops->change_mpath) { 1856 if (!drv->ops->change_mpath) {
1731 err = -EOPNOTSUPP; 1857 err = -EOPNOTSUPP;
1732 goto out; 1858 goto out;
1733 } 1859 }
1734 1860
1735 rtnl_lock(); 1861 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1862 err = -EOPNOTSUPP;
1863 goto out;
1864 }
1865
1866 if (!netif_running(dev)) {
1867 err = -ENETDOWN;
1868 goto out;
1869 }
1870
1736 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); 1871 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1737 rtnl_unlock();
1738 1872
1739 out: 1873 out:
1740 cfg80211_put_dev(drv); 1874 cfg80211_put_dev(drv);
1741 dev_put(dev); 1875 dev_put(dev);
1876 out_rtnl:
1877 rtnl_unlock();
1878
1742 return err; 1879 return err;
1743} 1880}
1744static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) 1881static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
@@ -1758,22 +1895,35 @@ static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1758 dst = nla_data(info->attrs[NL80211_ATTR_MAC]); 1895 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1759 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); 1896 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1760 1897
1898 rtnl_lock();
1899
1761 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1900 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1762 if (err) 1901 if (err)
1763 return err; 1902 goto out_rtnl;
1764 1903
1765 if (!drv->ops->add_mpath) { 1904 if (!drv->ops->add_mpath) {
1766 err = -EOPNOTSUPP; 1905 err = -EOPNOTSUPP;
1767 goto out; 1906 goto out;
1768 } 1907 }
1769 1908
1770 rtnl_lock(); 1909 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1910 err = -EOPNOTSUPP;
1911 goto out;
1912 }
1913
1914 if (!netif_running(dev)) {
1915 err = -ENETDOWN;
1916 goto out;
1917 }
1918
1771 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); 1919 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1772 rtnl_unlock();
1773 1920
1774 out: 1921 out:
1775 cfg80211_put_dev(drv); 1922 cfg80211_put_dev(drv);
1776 dev_put(dev); 1923 dev_put(dev);
1924 out_rtnl:
1925 rtnl_unlock();
1926
1777 return err; 1927 return err;
1778} 1928}
1779 1929
@@ -1787,22 +1937,25 @@ static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1787 if (info->attrs[NL80211_ATTR_MAC]) 1937 if (info->attrs[NL80211_ATTR_MAC])
1788 dst = nla_data(info->attrs[NL80211_ATTR_MAC]); 1938 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1789 1939
1940 rtnl_lock();
1941
1790 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1942 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1791 if (err) 1943 if (err)
1792 return err; 1944 goto out_rtnl;
1793 1945
1794 if (!drv->ops->del_mpath) { 1946 if (!drv->ops->del_mpath) {
1795 err = -EOPNOTSUPP; 1947 err = -EOPNOTSUPP;
1796 goto out; 1948 goto out;
1797 } 1949 }
1798 1950
1799 rtnl_lock();
1800 err = drv->ops->del_mpath(&drv->wiphy, dev, dst); 1951 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1801 rtnl_unlock();
1802 1952
1803 out: 1953 out:
1804 cfg80211_put_dev(drv); 1954 cfg80211_put_dev(drv);
1805 dev_put(dev); 1955 dev_put(dev);
1956 out_rtnl:
1957 rtnl_unlock();
1958
1806 return err; 1959 return err;
1807} 1960}
1808 1961
@@ -1835,22 +1988,30 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1835 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); 1988 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1836 } 1989 }
1837 1990
1991 rtnl_lock();
1992
1838 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 1993 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1839 if (err) 1994 if (err)
1840 return err; 1995 goto out_rtnl;
1841 1996
1842 if (!drv->ops->change_bss) { 1997 if (!drv->ops->change_bss) {
1843 err = -EOPNOTSUPP; 1998 err = -EOPNOTSUPP;
1844 goto out; 1999 goto out;
1845 } 2000 }
1846 2001
1847 rtnl_lock(); 2002 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2003 err = -EOPNOTSUPP;
2004 goto out;
2005 }
2006
1848 err = drv->ops->change_bss(&drv->wiphy, dev, &params); 2007 err = drv->ops->change_bss(&drv->wiphy, dev, &params);
1849 rtnl_unlock();
1850 2008
1851 out: 2009 out:
1852 cfg80211_put_dev(drv); 2010 cfg80211_put_dev(drv);
1853 dev_put(dev); 2011 dev_put(dev);
2012 out_rtnl:
2013 rtnl_unlock();
2014
1854 return err; 2015 return err;
1855} 2016}
1856 2017
@@ -1945,10 +2106,12 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
1945 struct nlattr *pinfoattr; 2106 struct nlattr *pinfoattr;
1946 struct sk_buff *msg; 2107 struct sk_buff *msg;
1947 2108
2109 rtnl_lock();
2110
1948 /* Look up our device */ 2111 /* Look up our device */
1949 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 2112 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1950 if (err) 2113 if (err)
1951 return err; 2114 goto out_rtnl;
1952 2115
1953 if (!drv->ops->get_mesh_params) { 2116 if (!drv->ops->get_mesh_params) {
1954 err = -EOPNOTSUPP; 2117 err = -EOPNOTSUPP;
@@ -1956,9 +2119,7 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
1956 } 2119 }
1957 2120
1958 /* Get the mesh params */ 2121 /* Get the mesh params */
1959 rtnl_lock();
1960 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params); 2122 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
1961 rtnl_unlock();
1962 if (err) 2123 if (err)
1963 goto out; 2124 goto out;
1964 2125
@@ -2007,13 +2168,16 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
2007 err = genlmsg_unicast(msg, info->snd_pid); 2168 err = genlmsg_unicast(msg, info->snd_pid);
2008 goto out; 2169 goto out;
2009 2170
2010nla_put_failure: 2171 nla_put_failure:
2011 genlmsg_cancel(msg, hdr); 2172 genlmsg_cancel(msg, hdr);
2012 err = -EMSGSIZE; 2173 err = -EMSGSIZE;
2013out: 2174 out:
2014 /* Cleanup */ 2175 /* Cleanup */
2015 cfg80211_put_dev(drv); 2176 cfg80211_put_dev(drv);
2016 dev_put(dev); 2177 dev_put(dev);
2178 out_rtnl:
2179 rtnl_unlock();
2180
2017 return err; 2181 return err;
2018} 2182}
2019 2183
@@ -2060,9 +2224,11 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2060 parent_attr, nl80211_meshconf_params_policy)) 2224 parent_attr, nl80211_meshconf_params_policy))
2061 return -EINVAL; 2225 return -EINVAL;
2062 2226
2227 rtnl_lock();
2228
2063 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 2229 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2064 if (err) 2230 if (err)
2065 return err; 2231 goto out_rtnl;
2066 2232
2067 if (!drv->ops->set_mesh_params) { 2233 if (!drv->ops->set_mesh_params) {
2068 err = -EOPNOTSUPP; 2234 err = -EOPNOTSUPP;
@@ -2109,14 +2275,15 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2109 nla_get_u16); 2275 nla_get_u16);
2110 2276
2111 /* Apply changes */ 2277 /* Apply changes */
2112 rtnl_lock();
2113 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask); 2278 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
2114 rtnl_unlock();
2115 2279
2116 out: 2280 out:
2117 /* cleanup */ 2281 /* cleanup */
2118 cfg80211_put_dev(drv); 2282 cfg80211_put_dev(drv);
2119 dev_put(dev); 2283 dev_put(dev);
2284 out_rtnl:
2285 rtnl_unlock();
2286
2120 return err; 2287 return err;
2121} 2288}
2122 2289
@@ -2262,43 +2429,6 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2262 return -EINVAL; 2429 return -EINVAL;
2263} 2430}
2264 2431
2265static int nl80211_set_mgmt_extra_ie(struct sk_buff *skb,
2266 struct genl_info *info)
2267{
2268 struct cfg80211_registered_device *drv;
2269 int err;
2270 struct net_device *dev;
2271 struct mgmt_extra_ie_params params;
2272
2273 memset(&params, 0, sizeof(params));
2274
2275 if (!info->attrs[NL80211_ATTR_MGMT_SUBTYPE])
2276 return -EINVAL;
2277 params.subtype = nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
2278 if (params.subtype > 15)
2279 return -EINVAL; /* FC Subtype field is 4 bits (0..15) */
2280
2281 if (info->attrs[NL80211_ATTR_IE]) {
2282 params.ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2283 params.ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2284 }
2285
2286 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2287 if (err)
2288 return err;
2289
2290 if (drv->ops->set_mgmt_extra_ie) {
2291 rtnl_lock();
2292 err = drv->ops->set_mgmt_extra_ie(&drv->wiphy, dev, &params);
2293 rtnl_unlock();
2294 } else
2295 err = -EOPNOTSUPP;
2296
2297 cfg80211_put_dev(drv);
2298 dev_put(dev);
2299 return err;
2300}
2301
2302static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) 2432static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2303{ 2433{
2304 struct cfg80211_registered_device *drv; 2434 struct cfg80211_registered_device *drv;
@@ -2312,9 +2442,11 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2312 enum ieee80211_band band; 2442 enum ieee80211_band band;
2313 size_t ie_len; 2443 size_t ie_len;
2314 2444
2445 rtnl_lock();
2446
2315 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); 2447 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2316 if (err) 2448 if (err)
2317 return err; 2449 goto out_rtnl;
2318 2450
2319 wiphy = &drv->wiphy; 2451 wiphy = &drv->wiphy;
2320 2452
@@ -2323,11 +2455,14 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2323 goto out; 2455 goto out;
2324 } 2456 }
2325 2457
2326 rtnl_lock(); 2458 if (!netif_running(dev)) {
2459 err = -ENETDOWN;
2460 goto out;
2461 }
2327 2462
2328 if (drv->scan_req) { 2463 if (drv->scan_req) {
2329 err = -EBUSY; 2464 err = -EBUSY;
2330 goto out_unlock; 2465 goto out;
2331 } 2466 }
2332 2467
2333 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { 2468 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
@@ -2335,7 +2470,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2335 n_channels++; 2470 n_channels++;
2336 if (!n_channels) { 2471 if (!n_channels) {
2337 err = -EINVAL; 2472 err = -EINVAL;
2338 goto out_unlock; 2473 goto out;
2339 } 2474 }
2340 } else { 2475 } else {
2341 for (band = 0; band < IEEE80211_NUM_BANDS; band++) 2476 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
@@ -2349,7 +2484,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2349 2484
2350 if (n_ssids > wiphy->max_scan_ssids) { 2485 if (n_ssids > wiphy->max_scan_ssids) {
2351 err = -EINVAL; 2486 err = -EINVAL;
2352 goto out_unlock; 2487 goto out;
2353 } 2488 }
2354 2489
2355 if (info->attrs[NL80211_ATTR_IE]) 2490 if (info->attrs[NL80211_ATTR_IE])
@@ -2363,7 +2498,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2363 + ie_len, GFP_KERNEL); 2498 + ie_len, GFP_KERNEL);
2364 if (!request) { 2499 if (!request) {
2365 err = -ENOMEM; 2500 err = -ENOMEM;
2366 goto out_unlock; 2501 goto out;
2367 } 2502 }
2368 2503
2369 request->channels = (void *)((char *)request + sizeof(*request)); 2504 request->channels = (void *)((char *)request + sizeof(*request));
@@ -2434,11 +2569,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2434 drv->scan_req = NULL; 2569 drv->scan_req = NULL;
2435 kfree(request); 2570 kfree(request);
2436 } 2571 }
2437 out_unlock:
2438 rtnl_unlock();
2439 out: 2572 out:
2440 cfg80211_put_dev(drv); 2573 cfg80211_put_dev(drv);
2441 dev_put(dev); 2574 dev_put(dev);
2575 out_rtnl:
2576 rtnl_unlock();
2577
2442 return err; 2578 return err;
2443} 2579}
2444 2580
@@ -2558,6 +2694,288 @@ static int nl80211_dump_scan(struct sk_buff *skb,
2558 return err; 2694 return err;
2559} 2695}
2560 2696
2697static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
2698{
2699 return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM ||
2700 auth_type == NL80211_AUTHTYPE_SHARED_KEY ||
2701 auth_type == NL80211_AUTHTYPE_FT ||
2702 auth_type == NL80211_AUTHTYPE_NETWORK_EAP;
2703}
2704
2705static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
2706{
2707 struct cfg80211_registered_device *drv;
2708 struct net_device *dev;
2709 struct cfg80211_auth_request req;
2710 struct wiphy *wiphy;
2711 int err;
2712
2713 rtnl_lock();
2714
2715 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2716 if (err)
2717 goto unlock_rtnl;
2718
2719 if (!drv->ops->auth) {
2720 err = -EOPNOTSUPP;
2721 goto out;
2722 }
2723
2724 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2725 err = -EOPNOTSUPP;
2726 goto out;
2727 }
2728
2729 if (!netif_running(dev)) {
2730 err = -ENETDOWN;
2731 goto out;
2732 }
2733
2734 if (!info->attrs[NL80211_ATTR_MAC]) {
2735 err = -EINVAL;
2736 goto out;
2737 }
2738
2739 wiphy = &drv->wiphy;
2740 memset(&req, 0, sizeof(req));
2741
2742 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2743
2744 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2745 req.chan = ieee80211_get_channel(
2746 wiphy,
2747 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
2748 if (!req.chan) {
2749 err = -EINVAL;
2750 goto out;
2751 }
2752 }
2753
2754 if (info->attrs[NL80211_ATTR_SSID]) {
2755 req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2756 req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
2757 }
2758
2759 if (info->attrs[NL80211_ATTR_IE]) {
2760 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
2761 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2762 }
2763
2764 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2765 req.auth_type =
2766 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
2767 if (!nl80211_valid_auth_type(req.auth_type)) {
2768 err = -EINVAL;
2769 goto out;
2770 }
2771 }
2772
2773 err = drv->ops->auth(&drv->wiphy, dev, &req);
2774
2775out:
2776 cfg80211_put_dev(drv);
2777 dev_put(dev);
2778unlock_rtnl:
2779 rtnl_unlock();
2780 return err;
2781}
2782
2783static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
2784{
2785 struct cfg80211_registered_device *drv;
2786 struct net_device *dev;
2787 struct cfg80211_assoc_request req;
2788 struct wiphy *wiphy;
2789 int err;
2790
2791 rtnl_lock();
2792
2793 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2794 if (err)
2795 goto unlock_rtnl;
2796
2797 if (!drv->ops->assoc) {
2798 err = -EOPNOTSUPP;
2799 goto out;
2800 }
2801
2802 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2803 err = -EOPNOTSUPP;
2804 goto out;
2805 }
2806
2807 if (!netif_running(dev)) {
2808 err = -ENETDOWN;
2809 goto out;
2810 }
2811
2812 if (!info->attrs[NL80211_ATTR_MAC] ||
2813 !info->attrs[NL80211_ATTR_SSID]) {
2814 err = -EINVAL;
2815 goto out;
2816 }
2817
2818 wiphy = &drv->wiphy;
2819 memset(&req, 0, sizeof(req));
2820
2821 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2822
2823 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2824 req.chan = ieee80211_get_channel(
2825 wiphy,
2826 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
2827 if (!req.chan) {
2828 err = -EINVAL;
2829 goto out;
2830 }
2831 }
2832
2833 req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2834 req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
2835
2836 if (info->attrs[NL80211_ATTR_IE]) {
2837 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
2838 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2839 }
2840
2841 err = drv->ops->assoc(&drv->wiphy, dev, &req);
2842
2843out:
2844 cfg80211_put_dev(drv);
2845 dev_put(dev);
2846unlock_rtnl:
2847 rtnl_unlock();
2848 return err;
2849}
2850
2851static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
2852{
2853 struct cfg80211_registered_device *drv;
2854 struct net_device *dev;
2855 struct cfg80211_deauth_request req;
2856 struct wiphy *wiphy;
2857 int err;
2858
2859 rtnl_lock();
2860
2861 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2862 if (err)
2863 goto unlock_rtnl;
2864
2865 if (!drv->ops->deauth) {
2866 err = -EOPNOTSUPP;
2867 goto out;
2868 }
2869
2870 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2871 err = -EOPNOTSUPP;
2872 goto out;
2873 }
2874
2875 if (!netif_running(dev)) {
2876 err = -ENETDOWN;
2877 goto out;
2878 }
2879
2880 if (!info->attrs[NL80211_ATTR_MAC]) {
2881 err = -EINVAL;
2882 goto out;
2883 }
2884
2885 wiphy = &drv->wiphy;
2886 memset(&req, 0, sizeof(req));
2887
2888 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2889
2890 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
2891 req.reason_code =
2892 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
2893 if (req.reason_code == 0) {
2894 /* Reason Code 0 is reserved */
2895 err = -EINVAL;
2896 goto out;
2897 }
2898 }
2899
2900 if (info->attrs[NL80211_ATTR_IE]) {
2901 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
2902 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2903 }
2904
2905 err = drv->ops->deauth(&drv->wiphy, dev, &req);
2906
2907out:
2908 cfg80211_put_dev(drv);
2909 dev_put(dev);
2910unlock_rtnl:
2911 rtnl_unlock();
2912 return err;
2913}
2914
2915static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
2916{
2917 struct cfg80211_registered_device *drv;
2918 struct net_device *dev;
2919 struct cfg80211_disassoc_request req;
2920 struct wiphy *wiphy;
2921 int err;
2922
2923 rtnl_lock();
2924
2925 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2926 if (err)
2927 goto unlock_rtnl;
2928
2929 if (!drv->ops->disassoc) {
2930 err = -EOPNOTSUPP;
2931 goto out;
2932 }
2933
2934 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2935 err = -EOPNOTSUPP;
2936 goto out;
2937 }
2938
2939 if (!netif_running(dev)) {
2940 err = -ENETDOWN;
2941 goto out;
2942 }
2943
2944 if (!info->attrs[NL80211_ATTR_MAC]) {
2945 err = -EINVAL;
2946 goto out;
2947 }
2948
2949 wiphy = &drv->wiphy;
2950 memset(&req, 0, sizeof(req));
2951
2952 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2953
2954 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
2955 req.reason_code =
2956 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
2957 if (req.reason_code == 0) {
2958 /* Reason Code 0 is reserved */
2959 err = -EINVAL;
2960 goto out;
2961 }
2962 }
2963
2964 if (info->attrs[NL80211_ATTR_IE]) {
2965 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
2966 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2967 }
2968
2969 err = drv->ops->disassoc(&drv->wiphy, dev, &req);
2970
2971out:
2972 cfg80211_put_dev(drv);
2973 dev_put(dev);
2974unlock_rtnl:
2975 rtnl_unlock();
2976 return err;
2977}
2978
2561static struct genl_ops nl80211_ops[] = { 2979static struct genl_ops nl80211_ops[] = {
2562 { 2980 {
2563 .cmd = NL80211_CMD_GET_WIPHY, 2981 .cmd = NL80211_CMD_GET_WIPHY,
@@ -2725,12 +3143,6 @@ static struct genl_ops nl80211_ops[] = {
2725 .flags = GENL_ADMIN_PERM, 3143 .flags = GENL_ADMIN_PERM,
2726 }, 3144 },
2727 { 3145 {
2728 .cmd = NL80211_CMD_SET_MGMT_EXTRA_IE,
2729 .doit = nl80211_set_mgmt_extra_ie,
2730 .policy = nl80211_policy,
2731 .flags = GENL_ADMIN_PERM,
2732 },
2733 {
2734 .cmd = NL80211_CMD_TRIGGER_SCAN, 3146 .cmd = NL80211_CMD_TRIGGER_SCAN,
2735 .doit = nl80211_trigger_scan, 3147 .doit = nl80211_trigger_scan,
2736 .policy = nl80211_policy, 3148 .policy = nl80211_policy,
@@ -2741,6 +3153,33 @@ static struct genl_ops nl80211_ops[] = {
2741 .policy = nl80211_policy, 3153 .policy = nl80211_policy,
2742 .dumpit = nl80211_dump_scan, 3154 .dumpit = nl80211_dump_scan,
2743 }, 3155 },
3156 {
3157 .cmd = NL80211_CMD_AUTHENTICATE,
3158 .doit = nl80211_authenticate,
3159 .policy = nl80211_policy,
3160 .flags = GENL_ADMIN_PERM,
3161 },
3162 {
3163 .cmd = NL80211_CMD_ASSOCIATE,
3164 .doit = nl80211_associate,
3165 .policy = nl80211_policy,
3166 .flags = GENL_ADMIN_PERM,
3167 },
3168 {
3169 .cmd = NL80211_CMD_DEAUTHENTICATE,
3170 .doit = nl80211_deauthenticate,
3171 .policy = nl80211_policy,
3172 .flags = GENL_ADMIN_PERM,
3173 },
3174 {
3175 .cmd = NL80211_CMD_DISASSOCIATE,
3176 .doit = nl80211_disassociate,
3177 .policy = nl80211_policy,
3178 .flags = GENL_ADMIN_PERM,
3179 },
3180};
3181static struct genl_multicast_group nl80211_mlme_mcgrp = {
3182 .name = "mlme",
2744}; 3183};
2745 3184
2746/* multicast groups */ 3185/* multicast groups */
@@ -2887,6 +3326,71 @@ nla_put_failure:
2887 nlmsg_free(msg); 3326 nlmsg_free(msg);
2888} 3327}
2889 3328
3329static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
3330 struct net_device *netdev,
3331 const u8 *buf, size_t len,
3332 enum nl80211_commands cmd)
3333{
3334 struct sk_buff *msg;
3335 void *hdr;
3336
3337 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
3338 if (!msg)
3339 return;
3340
3341 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
3342 if (!hdr) {
3343 nlmsg_free(msg);
3344 return;
3345 }
3346
3347 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3349 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
3350
3351 if (genlmsg_end(msg, hdr) < 0) {
3352 nlmsg_free(msg);
3353 return;
3354 }
3355
3356 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
3357 return;
3358
3359 nla_put_failure:
3360 genlmsg_cancel(msg, hdr);
3361 nlmsg_free(msg);
3362}
3363
3364void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
3365 struct net_device *netdev, const u8 *buf, size_t len)
3366{
3367 nl80211_send_mlme_event(rdev, netdev, buf, len,
3368 NL80211_CMD_AUTHENTICATE);
3369}
3370
3371void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
3372 struct net_device *netdev, const u8 *buf,
3373 size_t len)
3374{
3375 nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
3376}
3377
3378void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
3379 struct net_device *netdev, const u8 *buf,
3380 size_t len)
3381{
3382 nl80211_send_mlme_event(rdev, netdev, buf, len,
3383 NL80211_CMD_DEAUTHENTICATE);
3384}
3385
3386void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
3387 struct net_device *netdev, const u8 *buf,
3388 size_t len)
3389{
3390 nl80211_send_mlme_event(rdev, netdev, buf, len,
3391 NL80211_CMD_DISASSOCIATE);
3392}
3393
2890/* initialisation/exit functions */ 3394/* initialisation/exit functions */
2891 3395
2892int nl80211_init(void) 3396int nl80211_init(void)
@@ -2915,6 +3419,10 @@ int nl80211_init(void)
2915 if (err) 3419 if (err)
2916 goto err_out; 3420 goto err_out;
2917 3421
3422 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
3423 if (err)
3424 goto err_out;
3425
2918 return 0; 3426 return 0;
2919 err_out: 3427 err_out:
2920 genl_unregister_family(&nl80211_fam); 3428 genl_unregister_family(&nl80211_fam);
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index e65a3c38c52f..b77af4ab80be 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -3,7 +3,6 @@
3 3
4#include "core.h" 4#include "core.h"
5 5
6#ifdef CONFIG_NL80211
7extern int nl80211_init(void); 6extern int nl80211_init(void);
8extern void nl80211_exit(void); 7extern void nl80211_exit(void);
9extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev); 8extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
@@ -12,30 +11,17 @@ extern void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
12extern void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, 11extern void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
13 struct net_device *netdev); 12 struct net_device *netdev);
14extern void nl80211_send_reg_change_event(struct regulatory_request *request); 13extern void nl80211_send_reg_change_event(struct regulatory_request *request);
15#else 14extern void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
16static inline int nl80211_init(void) 15 struct net_device *netdev,
17{ 16 const u8 *buf, size_t len);
18 return 0; 17extern void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
19} 18 struct net_device *netdev,
20static inline void nl80211_exit(void) 19 const u8 *buf, size_t len);
21{ 20extern void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
22} 21 struct net_device *netdev,
23static inline void nl80211_notify_dev_rename( 22 const u8 *buf, size_t len);
24 struct cfg80211_registered_device *rdev) 23extern void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
25{ 24 struct net_device *netdev,
26} 25 const u8 *buf, size_t len);
27static inline void
28nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
29 struct net_device *netdev)
30{}
31static inline void nl80211_send_scan_aborted(
32 struct cfg80211_registered_device *rdev,
33 struct net_device *netdev)
34{}
35static inline void
36nl80211_send_reg_change_event(struct regulatory_request *request)
37{
38}
39#endif /* CONFIG_NL80211 */
40 26
41#endif /* __NET_WIRELESS_NL80211_H */ 27#endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index eb8b8ed16155..6327e1617acb 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -122,9 +122,14 @@ static const struct ieee80211_regdomain *cfg80211_world_regdom =
122 122
123#ifdef CONFIG_WIRELESS_OLD_REGULATORY 123#ifdef CONFIG_WIRELESS_OLD_REGULATORY
124static char *ieee80211_regdom = "US"; 124static char *ieee80211_regdom = "US";
125#else
126static char *ieee80211_regdom = "00";
127#endif
128
125module_param(ieee80211_regdom, charp, 0444); 129module_param(ieee80211_regdom, charp, 0444);
126MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code"); 130MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
127 131
132#ifdef CONFIG_WIRELESS_OLD_REGULATORY
128/* 133/*
129 * We assume 40 MHz bandwidth for the old regulatory work. 134 * We assume 40 MHz bandwidth for the old regulatory work.
130 * We make emphasis we are using the exact same frequencies 135 * We make emphasis we are using the exact same frequencies
@@ -1415,16 +1420,6 @@ new_request:
1415 return r; 1420 return r;
1416 } 1421 }
1417 1422
1418 /*
1419 * Note: When CONFIG_WIRELESS_OLD_REGULATORY is enabled
1420 * AND if CRDA is NOT present nothing will happen, if someone
1421 * wants to bother with 11d with OLD_REG you can add a timer.
1422 * If after x amount of time nothing happens you can call:
1423 *
1424 * return set_regdom(country_ie_regdomain);
1425 *
1426 * to intersect with the static rd
1427 */
1428 return call_crda(last_request->alpha2); 1423 return call_crda(last_request->alpha2);
1429} 1424}
1430 1425
@@ -1601,6 +1596,10 @@ static bool reg_same_country_ie_hint(struct wiphy *wiphy,
1601 1596
1602 assert_cfg80211_lock(); 1597 assert_cfg80211_lock();
1603 1598
1599 if (unlikely(last_request->initiator !=
1600 NL80211_REGDOM_SET_BY_COUNTRY_IE))
1601 return false;
1602
1604 request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx); 1603 request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
1605 1604
1606 if (!request_wiphy) 1605 if (!request_wiphy)
@@ -1663,7 +1662,9 @@ void regulatory_hint_11d(struct wiphy *wiphy,
1663 * we optimize an early check to exit out early if we don't have to 1662 * we optimize an early check to exit out early if we don't have to
1664 * do anything 1663 * do anything
1665 */ 1664 */
1666 if (likely(wiphy_idx_valid(last_request->wiphy_idx))) { 1665 if (likely(last_request->initiator ==
1666 NL80211_REGDOM_SET_BY_COUNTRY_IE &&
1667 wiphy_idx_valid(last_request->wiphy_idx))) {
1667 struct cfg80211_registered_device *drv_last_ie; 1668 struct cfg80211_registered_device *drv_last_ie;
1668 1669
1669 drv_last_ie = 1670 drv_last_ie =
@@ -2022,28 +2023,21 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
2022 */ 2023 */
2023 2024
2024 BUG_ON(!country_ie_regdomain); 2025 BUG_ON(!country_ie_regdomain);
2026 BUG_ON(rd == country_ie_regdomain);
2025 2027
2026 if (rd != country_ie_regdomain) { 2028 /*
2027 /* 2029 * Intersect what CRDA returned and our what we
2028 * Intersect what CRDA returned and our what we 2030 * had built from the Country IE received
2029 * had built from the Country IE received 2031 */
2030 */
2031 2032
2032 intersected_rd = regdom_intersect(rd, country_ie_regdomain); 2033 intersected_rd = regdom_intersect(rd, country_ie_regdomain);
2033 2034
2034 reg_country_ie_process_debug(rd, country_ie_regdomain, 2035 reg_country_ie_process_debug(rd,
2035 intersected_rd); 2036 country_ie_regdomain,
2037 intersected_rd);
2036 2038
2037 kfree(country_ie_regdomain); 2039 kfree(country_ie_regdomain);
2038 country_ie_regdomain = NULL; 2040 country_ie_regdomain = NULL;
2039 } else {
2040 /*
2041 * This would happen when CRDA was not present and
2042 * OLD_REGULATORY was enabled. We intersect our Country
2043 * IE rd and what was set on cfg80211 originally
2044 */
2045 intersected_rd = regdom_intersect(rd, cfg80211_regdomain);
2046 }
2047 2041
2048 if (!intersected_rd) 2042 if (!intersected_rd)
2049 return -EINVAL; 2043 return -EINVAL;
@@ -2135,15 +2129,18 @@ int regulatory_init(void)
2135 /* 2129 /*
2136 * The old code still requests for a new regdomain and if 2130 * The old code still requests for a new regdomain and if
2137 * you have CRDA you get it updated, otherwise you get 2131 * you have CRDA you get it updated, otherwise you get
2138 * stuck with the static values. We ignore "EU" code as 2132 * stuck with the static values. Since "EU" is not a valid
2139 * that is not a valid ISO / IEC 3166 alpha2 2133 * ISO / IEC 3166 alpha2 code we can't expect userpace to
2134 * give us a regulatory domain for it. We need last_request
2135 * iniitalized though so lets just send a request which we
2136 * know will be ignored... this crap will be removed once
2137 * OLD_REG dies.
2140 */ 2138 */
2141 if (ieee80211_regdom[0] != 'E' || ieee80211_regdom[1] != 'U') 2139 err = regulatory_hint_core(ieee80211_regdom);
2142 err = regulatory_hint_core(ieee80211_regdom);
2143#else 2140#else
2144 cfg80211_regdomain = cfg80211_world_regdom; 2141 cfg80211_regdomain = cfg80211_world_regdom;
2145 2142
2146 err = regulatory_hint_core("00"); 2143 err = regulatory_hint_core(ieee80211_regdom);
2147#endif 2144#endif
2148 if (err) { 2145 if (err) {
2149 if (err == -ENOMEM) 2146 if (err == -ENOMEM)
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 280dbcd02c15..2a00e362f5fe 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -80,7 +80,8 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
80 bool expired = false; 80 bool expired = false;
81 81
82 list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) { 82 list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
83 if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE)) 83 if (bss->hold ||
84 !time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
84 continue; 85 continue;
85 list_del(&bss->list); 86 list_del(&bss->list);
86 rb_erase(&bss->rbn, &dev->bss_tree); 87 rb_erase(&bss->rbn, &dev->bss_tree);
@@ -471,6 +472,30 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
471} 472}
472EXPORT_SYMBOL(cfg80211_unlink_bss); 473EXPORT_SYMBOL(cfg80211_unlink_bss);
473 474
475void cfg80211_hold_bss(struct cfg80211_bss *pub)
476{
477 struct cfg80211_internal_bss *bss;
478
479 if (!pub)
480 return;
481
482 bss = container_of(pub, struct cfg80211_internal_bss, pub);
483 bss->hold = true;
484}
485EXPORT_SYMBOL(cfg80211_hold_bss);
486
487void cfg80211_unhold_bss(struct cfg80211_bss *pub)
488{
489 struct cfg80211_internal_bss *bss;
490
491 if (!pub)
492 return;
493
494 bss = container_of(pub, struct cfg80211_internal_bss, pub);
495 bss->hold = false;
496}
497EXPORT_SYMBOL(cfg80211_unhold_bss);
498
474#ifdef CONFIG_WIRELESS_EXT 499#ifdef CONFIG_WIRELESS_EXT
475int cfg80211_wext_siwscan(struct net_device *dev, 500int cfg80211_wext_siwscan(struct net_device *dev,
476 struct iw_request_info *info, 501 struct iw_request_info *info,
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index b84a9b4fe96a..0fd1db6e95bb 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -66,6 +66,7 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
66 struct cfg80211_registered_device *rdev; 66 struct cfg80211_registered_device *rdev;
67 struct vif_params vifparams; 67 struct vif_params vifparams;
68 enum nl80211_iftype type; 68 enum nl80211_iftype type;
69 int ret;
69 70
70 if (!wdev) 71 if (!wdev)
71 return -EOPNOTSUPP; 72 return -EOPNOTSUPP;
@@ -96,10 +97,16 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
96 return -EINVAL; 97 return -EINVAL;
97 } 98 }
98 99
100 if (type == wdev->iftype)
101 return 0;
102
99 memset(&vifparams, 0, sizeof(vifparams)); 103 memset(&vifparams, 0, sizeof(vifparams));
100 104
101 return rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type, 105 ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
102 NULL, &vifparams); 106 NULL, &vifparams);
107 WARN_ON(!ret && wdev->iftype != type);
108
109 return ret;
103} 110}
104EXPORT_SYMBOL(cfg80211_wext_siwmode); 111EXPORT_SYMBOL(cfg80211_wext_siwmode);
105 112
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 9ca17b1ce52e..ed80af8ca5fb 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1035,6 +1035,12 @@ static int x25_sendmsg(struct kiocb *iocb, struct socket *sock,
1035 sx25.sx25_addr = x25->dest_addr; 1035 sx25.sx25_addr = x25->dest_addr;
1036 } 1036 }
1037 1037
1038 /* Sanity check the packet size */
1039 if (len > 65535) {
1040 rc = -EMSGSIZE;
1041 goto out;
1042 }
1043
1038 SOCK_DEBUG(sk, "x25_sendmsg: sendto: Addresses built.\n"); 1044 SOCK_DEBUG(sk, "x25_sendmsg: sendto: Addresses built.\n");
1039 1045
1040 /* Build a packet */ 1046 /* Build a packet */
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 62a5425cc6aa..82271720d970 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1615,7 +1615,7 @@ void xfrm_state_walk_done(struct xfrm_state_walk *walk)
1615 1615
1616 spin_lock_bh(&xfrm_state_lock); 1616 spin_lock_bh(&xfrm_state_lock);
1617 list_del(&walk->all); 1617 list_del(&walk->all);
1618 spin_lock_bh(&xfrm_state_lock); 1618 spin_unlock_bh(&xfrm_state_lock);
1619} 1619}
1620EXPORT_SYMBOL(xfrm_state_walk_done); 1620EXPORT_SYMBOL(xfrm_state_walk_done);
1621 1621
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 00:24:59 -0500