X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fipv4%2Fnetfilter%2Fipt_SAME.c;h=3dcf29411337ccd6052cfcc70b10827d8fff73af;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=ca8d4032305624c69ef32d6f91177838c214c669;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/net/ipv4/netfilter/ipt_SAME.c b/net/ipv4/netfilter/ipt_SAME.c
index ca8d40323..3dcf29411 100644
--- a/net/ipv4/netfilter/ipt_SAME.c
+++ b/net/ipv4/netfilter/ipt_SAME.c
@@ -34,7 +34,11 @@
 #include <net/protocol.h>
 #include <net/checksum.h>
 #include <linux/netfilter_ipv4.h>
+#ifdef CONFIG_NF_NAT_NEEDED
+#include <net/netfilter/nf_nat_rule.h>
+#else
 #include <linux/netfilter_ipv4/ip_nat_rule.h>
+#endif
 #include <linux/netfilter_ipv4/ipt_SAME.h>
 
 MODULE_LICENSE("GPL");
@@ -49,9 +53,9 @@ MODULE_DESCRIPTION("iptables special SNAT module for consistent sourceip");
 
 static int
 same_check(const char *tablename,
-	      const struct ipt_entry *e,
+	      const void *e,
+	      const struct xt_target *target,
 	      void *targinfo,
-	      unsigned int targinfosize,
 	      unsigned int hook_mask)
 {
 	unsigned int count, countess, rangeip, index = 0;
@@ -59,18 +63,6 @@ same_check(const char *tablename,
 
 	mr->ipnum = 0;
 
-	if (strcmp(tablename, "nat") != 0) {
-		DEBUGP("same_check: bad table `%s'.\n", tablename);
-		return 0;
-	}
-	if (targinfosize != IPT_ALIGN(sizeof(*mr))) {
-		DEBUGP("same_check: size %u.\n", targinfosize);
-		return 0;
-	}
-	if (hook_mask & ~(1 << NF_IP_PRE_ROUTING | 1 << NF_IP_POST_ROUTING)) {
-		DEBUGP("same_check: bad hooks %x.\n", hook_mask);
-		return 0;
-	}
 	if (mr->rangesize < 1) {
 		DEBUGP("same_check: need at least one dest range.\n");
 		return 0;
@@ -127,8 +119,7 @@ same_check(const char *tablename,
 }
 
 static void 
-same_destroy(void *targinfo,
-		unsigned int targinfosize)
+same_destroy(const struct xt_target *target, void *targinfo)
 {
 	struct ipt_same_info *mr = targinfo;
 
@@ -143,14 +134,15 @@ same_target(struct sk_buff **pskb,
 		const struct net_device *in,
 		const struct net_device *out,
 		unsigned int hooknum,
-		const void *targinfo,
-		void *userinfo)
+		const struct xt_target *target,
+		const void *targinfo)
 {
 	struct ip_conntrack *ct;
 	enum ip_conntrack_info ctinfo;
-	u_int32_t tmpip, aindex, new_ip;
-	const struct ipt_same_info *mr = targinfo;
-	struct ip_nat_multi_range newrange;
+	u_int32_t tmpip, aindex;
+	__be32 new_ip;
+	const struct ipt_same_info *same = targinfo;
+	struct ip_nat_range newrange;
 	const struct ip_conntrack_tuple *t;
 
 	IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING ||
@@ -161,17 +153,23 @@ same_target(struct sk_buff **pskb,
 
 	/* Base new source on real src ip and optionally dst ip,
 	   giving some hope for consistency across reboots.
-	   Here we calculate the index in mr->iparray which
+	   Here we calculate the index in same->iparray which
 	   holds the ipaddress we should use */
 	
+#ifdef CONFIG_NF_NAT_NEEDED
+	tmpip = ntohl(t->src.u3.ip);
+
+	if (!(same->info & IPT_SAME_NODST))
+		tmpip += ntohl(t->dst.u3.ip);
+#else
 	tmpip = ntohl(t->src.ip);
 
-	if (!(mr->info & IPT_SAME_NODST))
+	if (!(same->info & IPT_SAME_NODST))
 		tmpip += ntohl(t->dst.ip);
-	
-	aindex = tmpip % mr->ipnum;
-		
-	new_ip = htonl(mr->iparray[aindex]);
+#endif
+	aindex = tmpip % same->ipnum;
+
+	new_ip = htonl(same->iparray[aindex]);
 
 	DEBUGP("ipt_SAME: src=%u.%u.%u.%u dst=%u.%u.%u.%u, "
 			"new src=%u.%u.%u.%u\n",
@@ -179,10 +177,10 @@ same_target(struct sk_buff **pskb,
 			NIPQUAD(new_ip));
 
 	/* Transfer from original range. */
-	newrange = ((struct ip_nat_multi_range)
-		{ 1, { { mr->range[0].flags | IP_NAT_RANGE_MAP_IPS,
-			 new_ip, new_ip,
-			 mr->range[0].min, mr->range[0].max } } });
+	newrange = ((struct ip_nat_range)
+		{ same->range[0].flags, new_ip, new_ip,
+		  /* FIXME: Use ports from correct range! */
+		  same->range[0].min, same->range[0].max });
 
 	/* Hand modified range to generic setup. */
 	return ip_nat_setup_info(ct, &newrange, hooknum);
@@ -191,21 +189,24 @@ same_target(struct sk_buff **pskb,
 static struct ipt_target same_reg = { 
 	.name		= "SAME",
 	.target		= same_target,
+	.targetsize	= sizeof(struct ipt_same_info),
+	.table		= "nat",
+	.hooks		= (1 << NF_IP_PRE_ROUTING | 1 << NF_IP_POST_ROUTING),
 	.checkentry	= same_check,
 	.destroy	= same_destroy,
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ipt_same_init(void)
 {
 	return ipt_register_target(&same_reg);
 }
 
-static void __exit fini(void)
+static void __exit ipt_same_fini(void)
 {
 	ipt_unregister_target(&same_reg);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ipt_same_init);
+module_exit(ipt_same_fini);