X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fipv4%2Fnetfilter%2Fipt_MASQUERADE.c;h=f389f60cb105856f690faefd235a852e699c66ae;hb=cbf77c1bd9c79d1742976862d0b2bebaff1ea14d;hp=f54150356cee40fe0871abeba15e03dacc555050;hpb=d3c5ee6d545b5372fd525ebe16988a5b6efeceb0;p=safe%2Fjmp%2Flinux-2.6

diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index f541503..f389f60 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -25,18 +25,15 @@
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
-MODULE_DESCRIPTION("iptables MASQUERADE target module");
+MODULE_DESCRIPTION("Xtables: automatic-address SNAT");
 
 /* Lock protects masq region inside conntrack */
 static DEFINE_RWLOCK(masq_lock);
 
 /* FIXME: Multiple targets. --RR */
-static bool
-masquerade_tg_check(const char *tablename, const void *e,
-                    const struct xt_target *target, void *targinfo,
-                    unsigned int hook_mask)
+static bool masquerade_tg_check(const struct xt_tgchk_param *par)
 {
-	const struct nf_nat_multi_range_compat *mr = targinfo;
+	const struct nf_nat_multi_range_compat *mr = par->targinfo;
 
 	if (mr->range[0].flags & IP_NAT_RANGE_MAP_IPS) {
 		pr_debug("masquerade_check: bad MAP_IPS.\n");
@@ -50,9 +47,7 @@ masquerade_tg_check(const char *tablename, const void *e,
 }
 
 static unsigned int
-masquerade_tg(struct sk_buff *skb, const struct net_device *in,
-              const struct net_device *out, unsigned int hooknum,
-              const struct xt_target *target, const void *targinfo)
+masquerade_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
 	struct nf_conn *ct;
 	struct nf_conn_nat *nat;
@@ -62,7 +57,7 @@ masquerade_tg(struct sk_buff *skb, const struct net_device *in,
 	const struct rtable *rt;
 	__be32 newsrc;
 
-	NF_CT_ASSERT(hooknum == NF_INET_POST_ROUTING);
+	NF_CT_ASSERT(par->hooknum == NF_INET_POST_ROUTING);
 
 	ct = nf_ct_get(skb, &ctinfo);
 	nat = nfct_nat(ct);
@@ -76,16 +71,16 @@ masquerade_tg(struct sk_buff *skb, const struct net_device *in,
 	if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip == 0)
 		return NF_ACCEPT;
 
-	mr = targinfo;
-	rt = (struct rtable *)skb->dst;
-	newsrc = inet_select_addr(out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
+	mr = par->targinfo;
+	rt = skb->rtable;
+	newsrc = inet_select_addr(par->out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
 	if (!newsrc) {
-		printk("MASQUERADE: %s ate my IP address\n", out->name);
+		printk("MASQUERADE: %s ate my IP address\n", par->out->name);
 		return NF_DROP;
 	}
 
 	write_lock_bh(&masq_lock);
-	nat->masq_index = out->ifindex;
+	nat->masq_index = par->out->ifindex;
 	write_unlock_bh(&masq_lock);
 
 	/* Transfer from original range. */
@@ -95,7 +90,7 @@ masquerade_tg(struct sk_buff *skb, const struct net_device *in,
 		  mr->range[0].min, mr->range[0].max });
 
 	/* Hand modified range to generic setup. */
-	return nf_nat_setup_info(ct, &newrange, hooknum);
+	return nf_nat_setup_info(ct, &newrange, IP_NAT_MANIP_SRC);
 }
 
 static int
@@ -119,9 +114,7 @@ static int masq_device_event(struct notifier_block *this,
 			     void *ptr)
 {
 	const struct net_device *dev = ptr;
-
-	if (dev->nd_net != &init_net)
-		return NOTIFY_DONE;
+	struct net *net = dev_net(dev);
 
 	if (event == NETDEV_DOWN) {
 		/* Device was downed.  Search entire table for
@@ -129,7 +122,8 @@ static int masq_device_event(struct notifier_block *this,
 		   and forget them. */
 		NF_CT_ASSERT(dev->ifindex != 0);
 
-		nf_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
+		nf_ct_iterate_cleanup(net, device_cmp,
+				      (void *)(long)dev->ifindex);
 	}
 
 	return NOTIFY_DONE;
@@ -139,18 +133,8 @@ static int masq_inet_event(struct notifier_block *this,
 			   unsigned long event,
 			   void *ptr)
 {
-	const struct net_device *dev = ((struct in_ifaddr *)ptr)->ifa_dev->dev;
-
-	if (event == NETDEV_DOWN) {
-		/* IP address was deleted.  Search entire table for
-		   conntracks which were associated with that device,
-		   and forget them. */
-		NF_CT_ASSERT(dev->ifindex != 0);
-
-		nf_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
-	}
-
-	return NOTIFY_DONE;
+	struct net_device *dev = ((struct in_ifaddr *)ptr)->ifa_dev->dev;
+	return masq_device_event(this, event, dev);
 }
 
 static struct notifier_block masq_dev_notifier = {
@@ -163,7 +147,7 @@ static struct notifier_block masq_inet_notifier = {
 
 static struct xt_target masquerade_tg_reg __read_mostly = {
 	.name		= "MASQUERADE",
-	.family		= AF_INET,
+	.family		= NFPROTO_IPV4,
 	.target		= masquerade_tg,
 	.targetsize	= sizeof(struct nf_nat_multi_range_compat),
 	.table		= "nat",