1 files changed, 34 insertions, 15 deletions

diff --git a/net/netfilter/xt_conntrack.c b/net/netfilter/xt_conntrack.c
index ffdebc95eb95..145489a4c3f2 100644
--- a/net/netfilter/xt_conntrack.c
+++ b/net/netfilter/xt_conntrack.c
@@ -32,6 +32,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -118,6 +119,7 @@ static int
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
+      const struct xt_match *match,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
@@ -201,38 +203,55 @@ match(const struct sk_buff *skb,
 
 #endif /* CONFIG_NF_IP_CONNTRACK */
 
-static int check(const char *tablename,
-		 const void *ip,
-		 void *matchinfo,
-		 unsigned int matchsize,
-		 unsigned int hook_mask)
+static int
+checkentry(const char *tablename,
+	   const void *ip,
+	   const struct xt_match *match,
+	   void *matchinfo,
+	   unsigned int matchsize,
+	   unsigned int hook_mask)
 {
-	if (matchsize != XT_ALIGN(sizeof(struct xt_conntrack_info)))
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+	if (nf_ct_l3proto_try_module_get(match->family) < 0) {
+		printk(KERN_WARNING "can't load nf_conntrack support for "
+				    "proto=%d\n", match->family);
 		return 0;
-
+	}
+#endif
 	return 1;
 }
 
+static void
+destroy(const struct xt_match *match, void *matchinfo, unsigned int matchsize)
+{
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+	nf_ct_l3proto_module_put(match->family);
+#endif
+}
+
 static struct xt_match conntrack_match = {
 	.name		= "conntrack",
-	.match		= &match,
-	.checkentry	= &check,
+	.match		= match,
+	.checkentry	= checkentry,
+	.destroy	= destroy,
+	.matchsize	= sizeof(struct xt_conntrack_info),
+	.family		= AF_INET,
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init xt_conntrack_init(void)
 {
 	int ret;
 	need_conntrack();
-	ret = xt_register_match(AF_INET, &conntrack_match);
+	ret = xt_register_match(&conntrack_match);
 
 	return ret;
 }
 
-static void __exit fini(void)
+static void __exit xt_conntrack_fini(void)
 {
-	xt_unregister_match(AF_INET, &conntrack_match);
+	xt_unregister_match(&conntrack_match);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(xt_conntrack_init);
+module_exit(xt_conntrack_fini);