X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fnetfilter%2Fxt_connmark.c;h=a8f03057dbdedd8c4887b0585ab48e60d1bd5b03;hb=fede70b9862635ab1bed84ab3d765e9069616b02;hp=2bb987f7bdd9d6fbda1a91b6f6df244250cfc752;hpb=5d04bff096180f032de8b9b12153a8a1b4009b8d;p=safe%2Fjmp%2Flinux-2.6

diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c
index 2bb987f..a8f0305 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -35,6 +35,7 @@ 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,
@@ -52,56 +53,102 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *ip,
+	   const struct xt_match *match,
 	   void *matchinfo,
-	   unsigned int matchsize,
 	   unsigned int hook_mask)
 {
-	struct xt_connmark_info *cm = (struct xt_connmark_info *)matchinfo;
+	struct xt_connmark_info *cm = matchinfo;
 
 	if (cm->mark > 0xffffffff || cm->mask > 0xffffffff) {
 		printk(KERN_WARNING "connmark: only support 32bit mark\n");
 		return 0;
 	}
+#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 struct xt_match connmark_match = {
-	.name		= "connmark",
-	.match		= match,
-	.matchsize	= sizeof(struct xt_connmark_info),
-	.checkentry	= checkentry,
-	.me		= THIS_MODULE
-};
+static void
+destroy(const struct xt_match *match, void *matchinfo)
+{
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+	nf_ct_l3proto_module_put(match->family);
+#endif
+}
 
-static struct xt_match connmark6_match = {
-	.name		= "connmark",
-	.match		= match,
-	.matchsize	= sizeof(struct xt_connmark_info),
-	.checkentry	= checkentry,
-	.me		= THIS_MODULE
+#ifdef CONFIG_COMPAT
+struct compat_xt_connmark_info {
+	compat_ulong_t	mark, mask;
+	u_int8_t	invert;
+	u_int8_t	__pad1;
+	u_int16_t	__pad2;
 };
 
-static int __init init(void)
+static void compat_from_user(void *dst, void *src)
 {
-	int ret;
+	struct compat_xt_connmark_info *cm = src;
+	struct xt_connmark_info m = {
+		.mark	= cm->mark,
+		.mask	= cm->mask,
+		.invert	= cm->invert,
+	};
+	memcpy(dst, &m, sizeof(m));
+}
 
-	need_conntrack();
+static int compat_to_user(void __user *dst, void *src)
+{
+	struct xt_connmark_info *m = src;
+	struct compat_xt_connmark_info cm = {
+		.mark	= m->mark,
+		.mask	= m->mask,
+		.invert	= m->invert,
+	};
+	return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
+}
+#endif /* CONFIG_COMPAT */
 
-	ret = xt_register_match(AF_INET, &connmark_match);
-	if (ret)
-		return ret;
+static struct xt_match xt_connmark_match[] = {
+	{
+		.name		= "connmark",
+		.family		= AF_INET,
+		.checkentry	= checkentry,
+		.match		= match,
+		.destroy	= destroy,
+		.matchsize	= sizeof(struct xt_connmark_info),
+#ifdef CONFIG_COMPAT
+		.compatsize	= sizeof(struct compat_xt_connmark_info),
+		.compat_from_user = compat_from_user,
+		.compat_to_user	= compat_to_user,
+#endif
+		.me		= THIS_MODULE
+	},
+	{
+		.name		= "connmark",
+		.family		= AF_INET6,
+		.checkentry	= checkentry,
+		.match		= match,
+		.destroy	= destroy,
+		.matchsize	= sizeof(struct xt_connmark_info),
+		.me		= THIS_MODULE
+	},
+};
 
-	ret = xt_register_match(AF_INET6, &connmark6_match);
-	if (ret)
-		xt_unregister_match(AF_INET, &connmark_match);
-	return ret;
+static int __init xt_connmark_init(void)
+{
+	need_conntrack();
+	return xt_register_matches(xt_connmark_match,
+				   ARRAY_SIZE(xt_connmark_match));
 }
 
-static void __exit fini(void)
+static void __exit xt_connmark_fini(void)
 {
-	xt_unregister_match(AF_INET6, &connmark6_match);
-	xt_unregister_match(AF_INET, &connmark_match);
+	xt_unregister_matches(xt_connmark_match, ARRAY_SIZE(xt_connmark_match));
 }
 
-module_init(init);
-module_exit(fini);
+module_init(xt_connmark_init);
+module_exit(xt_connmark_fini);