X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=net%2Fnetfilter%2Fxt_multiport.c;h=d06bb2dd39002171c5aa8f99f8500cd1f15b7eca;hb=fd048088306656824958e7783ffcee27e241b361;hp=e8ae10284acd7e49c74b7ab544412f6ac0cf94f9;hpb=22aadf8a07067644e101267ed5003043f2ad05bf;p=mv-sheeva.git

diff --git a/net/netfilter/xt_multiport.c b/net/netfilter/xt_multiport.c
index e8ae10284ac..d06bb2dd390 100644
--- a/net/netfilter/xt_multiport.c
+++ b/net/netfilter/xt_multiport.c
@@ -22,7 +22,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
-MODULE_DESCRIPTION("x_tables multiple port match module");
+MODULE_DESCRIPTION("Xtables: multiple port matching for TCP, UDP, UDP-Lite, SCTP and DCCP");
 MODULE_ALIAS("ipt_multiport");
 MODULE_ALIAS("ip6t_multiport");
 
@@ -34,8 +34,8 @@ MODULE_ALIAS("ip6t_multiport");
 
 /* Returns 1 if the port is matched by the test, 0 otherwise. */
 static inline bool
-ports_match(const u_int16_t *portlist, enum xt_multiport_flags flags,
-	    u_int8_t count, u_int16_t src, u_int16_t dst)
+ports_match_v0(const u_int16_t *portlist, enum xt_multiport_flags flags,
+	       u_int8_t count, u_int16_t src, u_int16_t dst)
 {
 	unsigned int i;
 	for (i = 0; i < count; i++) {
@@ -95,59 +95,46 @@ ports_match_v1(const struct xt_multiport_v1 *minfo,
 }
 
 static bool
-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,
-      bool *hotdrop)
+multiport_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	__be16 _ports[2], *pptr;
-	const struct xt_multiport *multiinfo = matchinfo;
+	const __be16 *pptr;
+	__be16 _ports[2];
+	const struct xt_multiport *multiinfo = par->matchinfo;
 
-	if (offset)
+	if (par->fragoff != 0)
 		return false;
 
-	pptr = skb_header_pointer(skb, protoff, sizeof(_ports), _ports);
+	pptr = skb_header_pointer(skb, par->thoff, sizeof(_ports), _ports);
 	if (pptr == NULL) {
 		/* We've been asked to examine this packet, and we
 		 * can't.  Hence, no choice but to drop.
 		 */
 		duprintf("xt_multiport: Dropping evil offset=0 tinygram.\n");
-		*hotdrop = true;
+		*par->hotdrop = true;
 		return false;
 	}
 
-	return ports_match(multiinfo->ports,
-			   multiinfo->flags, multiinfo->count,
-			   ntohs(pptr[0]), ntohs(pptr[1]));
+	return ports_match_v0(multiinfo->ports, multiinfo->flags,
+	       multiinfo->count, ntohs(pptr[0]), ntohs(pptr[1]));
 }
 
 static bool
-match_v1(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,
-	 bool *hotdrop)
+multiport_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	__be16 _ports[2], *pptr;
-	const struct xt_multiport_v1 *multiinfo = matchinfo;
+	const __be16 *pptr;
+	__be16 _ports[2];
+	const struct xt_multiport_v1 *multiinfo = par->matchinfo;
 
-	if (offset)
+	if (par->fragoff != 0)
 		return false;
 
-	pptr = skb_header_pointer(skb, protoff, sizeof(_ports), _ports);
+	pptr = skb_header_pointer(skb, par->thoff, sizeof(_ports), _ports);
 	if (pptr == NULL) {
 		/* We've been asked to examine this packet, and we
 		 * can't.  Hence, no choice but to drop.
 		 */
 		duprintf("xt_multiport: Dropping evil offset=0 tinygram.\n");
-		*hotdrop = true;
+		*par->hotdrop = true;
 		return false;
 	}
 
@@ -171,113 +158,91 @@ check(u_int16_t proto,
 		&& count <= XT_MULTI_PORTS;
 }
 
-/* Called when user tries to insert an entry of this type. */
-static bool
-checkentry(const char *tablename,
-	   const void *info,
-	   const struct xt_match *match,
-	   void *matchinfo,
-	   unsigned int hook_mask)
+static bool multiport_mt_check_v0(const struct xt_mtchk_param *par)
 {
-	const struct ipt_ip *ip = info;
-	const struct xt_multiport *multiinfo = matchinfo;
+	const struct ipt_ip *ip = par->entryinfo;
+	const struct xt_multiport *multiinfo = par->matchinfo;
 
 	return check(ip->proto, ip->invflags, multiinfo->flags,
 		     multiinfo->count);
 }
 
-static bool
-checkentry_v1(const char *tablename,
-	      const void *info,
-	      const struct xt_match *match,
-	      void *matchinfo,
-	      unsigned int hook_mask)
+static bool multiport_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ipt_ip *ip = info;
-	const struct xt_multiport_v1 *multiinfo = matchinfo;
+	const struct ipt_ip *ip = par->entryinfo;
+	const struct xt_multiport_v1 *multiinfo = par->matchinfo;
 
 	return check(ip->proto, ip->invflags, multiinfo->flags,
 		     multiinfo->count);
 }
 
-static bool
-checkentry6(const char *tablename,
-	    const void *info,
-	    const struct xt_match *match,
-	    void *matchinfo,
-	    unsigned int hook_mask)
+static bool multiport_mt6_check_v0(const struct xt_mtchk_param *par)
 {
-	const struct ip6t_ip6 *ip = info;
-	const struct xt_multiport *multiinfo = matchinfo;
+	const struct ip6t_ip6 *ip = par->entryinfo;
+	const struct xt_multiport *multiinfo = par->matchinfo;
 
 	return check(ip->proto, ip->invflags, multiinfo->flags,
 		     multiinfo->count);
 }
 
-static bool
-checkentry6_v1(const char *tablename,
-	       const void *info,
-	       const struct xt_match *match,
-	       void *matchinfo,
-	       unsigned int hook_mask)
+static bool multiport_mt6_check(const struct xt_mtchk_param *par)
 {
-	const struct ip6t_ip6 *ip = info;
-	const struct xt_multiport_v1 *multiinfo = matchinfo;
+	const struct ip6t_ip6 *ip = par->entryinfo;
+	const struct xt_multiport_v1 *multiinfo = par->matchinfo;
 
 	return check(ip->proto, ip->invflags, multiinfo->flags,
 		     multiinfo->count);
 }
 
-static struct xt_match xt_multiport_match[] __read_mostly = {
+static struct xt_match multiport_mt_reg[] __read_mostly = {
 	{
 		.name		= "multiport",
-		.family		= AF_INET,
+		.family		= NFPROTO_IPV4,
 		.revision	= 0,
-		.checkentry	= checkentry,
-		.match		= match,
+		.checkentry	= multiport_mt_check_v0,
+		.match		= multiport_mt_v0,
 		.matchsize	= sizeof(struct xt_multiport),
 		.me		= THIS_MODULE,
 	},
 	{
 		.name		= "multiport",
-		.family		= AF_INET,
+		.family		= NFPROTO_IPV4,
 		.revision	= 1,
-		.checkentry	= checkentry_v1,
-		.match		= match_v1,
+		.checkentry	= multiport_mt_check,
+		.match		= multiport_mt,
 		.matchsize	= sizeof(struct xt_multiport_v1),
 		.me		= THIS_MODULE,
 	},
 	{
 		.name		= "multiport",
-		.family		= AF_INET6,
+		.family		= NFPROTO_IPV6,
 		.revision	= 0,
-		.checkentry	= checkentry6,
-		.match		= match,
+		.checkentry	= multiport_mt6_check_v0,
+		.match		= multiport_mt_v0,
 		.matchsize	= sizeof(struct xt_multiport),
 		.me		= THIS_MODULE,
 	},
 	{
 		.name		= "multiport",
-		.family		= AF_INET6,
+		.family		= NFPROTO_IPV6,
 		.revision	= 1,
-		.checkentry	= checkentry6_v1,
-		.match		= match_v1,
+		.checkentry	= multiport_mt6_check,
+		.match		= multiport_mt,
 		.matchsize	= sizeof(struct xt_multiport_v1),
 		.me		= THIS_MODULE,
 	},
 };
 
-static int __init xt_multiport_init(void)
+static int __init multiport_mt_init(void)
 {
-	return xt_register_matches(xt_multiport_match,
-				   ARRAY_SIZE(xt_multiport_match));
+	return xt_register_matches(multiport_mt_reg,
+	       ARRAY_SIZE(multiport_mt_reg));
 }
 
-static void __exit xt_multiport_fini(void)
+static void __exit multiport_mt_exit(void)
 {
-	xt_unregister_matches(xt_multiport_match,
-			      ARRAY_SIZE(xt_multiport_match));
+	xt_unregister_matches(multiport_mt_reg, ARRAY_SIZE(multiport_mt_reg));
 }
 
-module_init(xt_multiport_init);
-module_exit(xt_multiport_fini);
+module_init(multiport_mt_init);
+module_exit(multiport_mt_exit);