---

yaml --- r: 78550 b: refs/heads/master c: 051578c h: refs/heads/master v: v3
git-mirror · Jan 28, 2008 · 3e2d920 · 3e2d920
1 parent 895ef24
commit 3e2d920
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Showing 3 changed files with 12 additions and 7 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1e796fda00f06bac584f0e4ad8750ab9430d79d3
+refs/heads/master: 051578ccbcdad3b24b621dfb652194e36759e8d5
diff --git a/trunk/include/linux/netfilter.h b/trunk/include/linux/netfilter.h
@@ -256,11 +256,16 @@ extern void (*ip_nat_decode_session)(struct sk_buff *, struct flowi *);
 static inline void
 nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, int family)
 {
-#if defined(CONFIG_IP_NF_NAT_NEEDED) || defined(CONFIG_NF_NAT_NEEDED)
+#ifdef CONFIG_NF_NAT_NEEDED
 	void (*decodefn)(struct sk_buff *, struct flowi *);
 
-	if (family == AF_INET && (decodefn = ip_nat_decode_session) != NULL)
-		decodefn(skb, fl);
+	if (family == AF_INET) {
+		rcu_read_lock();
+		decodefn = rcu_dereference(ip_nat_decode_session);
+		if (decodefn)
+			decodefn(skb, fl);
+		rcu_read_unlock();
+	}
 #endif
 }
 

diff --git a/trunk/net/ipv4/netfilter/nf_nat_standalone.c b/trunk/net/ipv4/netfilter/nf_nat_standalone.c
@@ -332,7 +332,7 @@ static int __init nf_nat_standalone_init(void)
 
 #ifdef CONFIG_XFRM
 	BUG_ON(ip_nat_decode_session != NULL);
-	ip_nat_decode_session = nat_decode_session;
+	rcu_assign_pointer(ip_nat_decode_session, nat_decode_session);
 #endif
 	ret = nf_nat_rule_init();
 	if (ret < 0) {
@@ -350,7 +350,7 @@ static int __init nf_nat_standalone_init(void)
 	nf_nat_rule_cleanup();
  cleanup_decode_session:
 #ifdef CONFIG_XFRM
-	ip_nat_decode_session = NULL;
+	rcu_assign_pointer(ip_nat_decode_session, NULL);
 	synchronize_net();
 #endif
 	return ret;
@@ -361,7 +361,7 @@ static void __exit nf_nat_standalone_fini(void)
 	nf_unregister_hooks(nf_nat_ops, ARRAY_SIZE(nf_nat_ops));
 	nf_nat_rule_cleanup();
 #ifdef CONFIG_XFRM
-	ip_nat_decode_session = NULL;
+	rcu_assign_pointer(ip_nat_decode_session, NULL);
 	synchronize_net();
 #endif
 	/* Conntrack caches are unregistered in nf_conntrack_cleanup */