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Diffstat (limited to 'net/netfilter/nf_conntrack_ecache.c')
-rw-r--r--net/netfilter/nf_conntrack_ecache.c37
1 files changed, 18 insertions, 19 deletions
diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
index 6b368be937c..b62c4148b92 100644
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -27,22 +27,17 @@
27 27
28static DEFINE_MUTEX(nf_ct_ecache_mutex); 28static DEFINE_MUTEX(nf_ct_ecache_mutex);
29 29
30struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb __read_mostly;
31EXPORT_SYMBOL_GPL(nf_conntrack_event_cb);
32
33struct nf_exp_event_notifier __rcu *nf_expect_event_cb __read_mostly;
34EXPORT_SYMBOL_GPL(nf_expect_event_cb);
35
36/* deliver cached events and clear cache entry - must be called with locally 30/* deliver cached events and clear cache entry - must be called with locally
37 * disabled softirqs */ 31 * disabled softirqs */
38void nf_ct_deliver_cached_events(struct nf_conn *ct) 32void nf_ct_deliver_cached_events(struct nf_conn *ct)
39{ 33{
34 struct net *net = nf_ct_net(ct);
40 unsigned long events; 35 unsigned long events;
41 struct nf_ct_event_notifier *notify; 36 struct nf_ct_event_notifier *notify;
42 struct nf_conntrack_ecache *e; 37 struct nf_conntrack_ecache *e;
43 38
44 rcu_read_lock(); 39 rcu_read_lock();
45 notify = rcu_dereference(nf_conntrack_event_cb); 40 notify = rcu_dereference(net->ct.nf_conntrack_event_cb);
46 if (notify == NULL) 41 if (notify == NULL)
47 goto out_unlock; 42 goto out_unlock;
48 43
@@ -83,19 +78,20 @@ out_unlock:
83} 78}
84EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events); 79EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events);
85 80
86int nf_conntrack_register_notifier(struct nf_ct_event_notifier *new) 81int nf_conntrack_register_notifier(struct net *net,
82 struct nf_ct_event_notifier *new)
87{ 83{
88 int ret = 0; 84 int ret = 0;
89 struct nf_ct_event_notifier *notify; 85 struct nf_ct_event_notifier *notify;
90 86
91 mutex_lock(&nf_ct_ecache_mutex); 87 mutex_lock(&nf_ct_ecache_mutex);
92 notify = rcu_dereference_protected(nf_conntrack_event_cb, 88 notify = rcu_dereference_protected(net->ct.nf_conntrack_event_cb,
93 lockdep_is_held(&nf_ct_ecache_mutex)); 89 lockdep_is_held(&nf_ct_ecache_mutex));
94 if (notify != NULL) { 90 if (notify != NULL) {
95 ret = -EBUSY; 91 ret = -EBUSY;
96 goto out_unlock; 92 goto out_unlock;
97 } 93 }
98 RCU_INIT_POINTER(nf_conntrack_event_cb, new); 94 RCU_INIT_POINTER(net->ct.nf_conntrack_event_cb, new);
99 mutex_unlock(&nf_ct_ecache_mutex); 95 mutex_unlock(&nf_ct_ecache_mutex);
100 return ret; 96 return ret;
101 97
@@ -105,32 +101,34 @@ out_unlock:
105} 101}
106EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier); 102EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier);
107 103
108void nf_conntrack_unregister_notifier(struct nf_ct_event_notifier *new) 104void nf_conntrack_unregister_notifier(struct net *net,
105 struct nf_ct_event_notifier *new)
109{ 106{
110 struct nf_ct_event_notifier *notify; 107 struct nf_ct_event_notifier *notify;
111 108
112 mutex_lock(&nf_ct_ecache_mutex); 109 mutex_lock(&nf_ct_ecache_mutex);
113 notify = rcu_dereference_protected(nf_conntrack_event_cb, 110 notify = rcu_dereference_protected(net->ct.nf_conntrack_event_cb,
114 lockdep_is_held(&nf_ct_ecache_mutex)); 111 lockdep_is_held(&nf_ct_ecache_mutex));
115 BUG_ON(notify != new); 112 BUG_ON(notify != new);
116 RCU_INIT_POINTER(nf_conntrack_event_cb, NULL); 113 RCU_INIT_POINTER(net->ct.nf_conntrack_event_cb, NULL);
117 mutex_unlock(&nf_ct_ecache_mutex); 114 mutex_unlock(&nf_ct_ecache_mutex);
118} 115}
119EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier); 116EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier);
120 117
121int nf_ct_expect_register_notifier(struct nf_exp_event_notifier *new) 118int nf_ct_expect_register_notifier(struct net *net,
119 struct nf_exp_event_notifier *new)
122{ 120{
123 int ret = 0; 121 int ret = 0;
124 struct nf_exp_event_notifier *notify; 122 struct nf_exp_event_notifier *notify;
125 123
126 mutex_lock(&nf_ct_ecache_mutex); 124 mutex_lock(&nf_ct_ecache_mutex);
127 notify = rcu_dereference_protected(nf_expect_event_cb, 125 notify = rcu_dereference_protected(net->ct.nf_expect_event_cb,
128 lockdep_is_held(&nf_ct_ecache_mutex)); 126 lockdep_is_held(&nf_ct_ecache_mutex));
129 if (notify != NULL) { 127 if (notify != NULL) {
130 ret = -EBUSY; 128 ret = -EBUSY;
131 goto out_unlock; 129 goto out_unlock;
132 } 130 }
133 RCU_INIT_POINTER(nf_expect_event_cb, new); 131 RCU_INIT_POINTER(net->ct.nf_expect_event_cb, new);
134 mutex_unlock(&nf_ct_ecache_mutex); 132 mutex_unlock(&nf_ct_ecache_mutex);
135 return ret; 133 return ret;
136 134
@@ -140,15 +138,16 @@ out_unlock:
140} 138}
141EXPORT_SYMBOL_GPL(nf_ct_expect_register_notifier); 139EXPORT_SYMBOL_GPL(nf_ct_expect_register_notifier);
142 140
143void nf_ct_expect_unregister_notifier(struct nf_exp_event_notifier *new) 141void nf_ct_expect_unregister_notifier(struct net *net,
142 struct nf_exp_event_notifier *new)
144{ 143{
145 struct nf_exp_event_notifier *notify; 144 struct nf_exp_event_notifier *notify;
146 145
147 mutex_lock(&nf_ct_ecache_mutex); 146 mutex_lock(&nf_ct_ecache_mutex);
148 notify = rcu_dereference_protected(nf_expect_event_cb, 147 notify = rcu_dereference_protected(net->ct.nf_expect_event_cb,
149 lockdep_is_held(&nf_ct_ecache_mutex)); 148 lockdep_is_held(&nf_ct_ecache_mutex));
150 BUG_ON(notify != new); 149 BUG_ON(notify != new);
151 RCU_INIT_POINTER(nf_expect_event_cb, NULL); 150 RCU_INIT_POINTER(net->ct.nf_expect_event_cb, NULL);
152 mutex_unlock(&nf_ct_ecache_mutex); 151 mutex_unlock(&nf_ct_ecache_mutex);
153} 152}
154EXPORT_SYMBOL_GPL(nf_ct_expect_unregister_notifier); 153EXPORT_SYMBOL_GPL(nf_ct_expect_unregister_notifier);