Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / net / ipv4 / netfilter / ipt_NETMAP.c

diff --git a/net/ipv4/netfilter/ipt_NETMAP.c b/net/ipv4/netfilter/ipt_NETMAP.c
index 06254b2..2fcf107 100644 (file)
--- a/net/ipv4/netfilter/ipt_NETMAP.c
+++ b/net/ipv4/netfilter/ipt_NETMAP.c
@@ -31,25 +31,14 @@ MODULE_DESCRIPTION("iptables 1:1 NAT mapping of IP networks target");
 
 static int
 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)
 {
        const struct ip_nat_multi_range_compat *mr = targinfo;
 
-       if (strcmp(tablename, "nat") != 0) {
-               DEBUGP(MODULENAME":check: bad table `%s'.\n", tablename);
-               return 0;
-       }
-       if (targinfosize != IPT_ALIGN(sizeof(*mr))) {
-               DEBUGP(MODULENAME":check: size %u.\n", targinfosize);
-               return 0;
-       }
-       if (hook_mask & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_POST_ROUTING))) {
-               DEBUGP(MODULENAME":check: bad hooks %x.\n", hook_mask);
-               return 0;
-       }
        if (!(mr->range[0].flags & IP_NAT_RANGE_MAP_IPS)) {
                DEBUGP(MODULENAME":check: bad MAP_IPS.\n");
                return 0;
@@ -66,6 +55,7 @@ target(struct sk_buff **pskb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
+       const struct xt_target *target,
        const void *targinfo,
        void *userinfo)
 {
@@ -76,12 +66,13 @@ target(struct sk_buff **pskb,
        struct ip_nat_range newrange;
 
        IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING
-                    || hooknum == NF_IP_POST_ROUTING);
+                    || hooknum == NF_IP_POST_ROUTING
+                    || hooknum == NF_IP_LOCAL_OUT);
        ct = ip_conntrack_get(*pskb, &ctinfo);
 
        netmask = ~(mr->range[0].min_ip ^ mr->range[0].max_ip);
 
-       if (hooknum == NF_IP_PRE_ROUTING)
+       if (hooknum == NF_IP_PRE_ROUTING || hooknum == NF_IP_LOCAL_OUT)
                new_ip = (*pskb)->nh.iph->daddr & ~netmask;
        else
                new_ip = (*pskb)->nh.iph->saddr & ~netmask;
@@ -99,19 +90,23 @@ target(struct sk_buff **pskb,
 static struct ipt_target target_module = { 
        .name           = MODULENAME,
        .target         = target, 
+       .targetsize     = sizeof(struct ip_nat_multi_range_compat),
+       .table          = "nat",
+       .hooks          = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_POST_ROUTING) |
+                         (1 << NF_IP_LOCAL_OUT),
        .checkentry     = check,
        .me             = THIS_MODULE 
 };
 
-static int __init init(void)
+static int __init ipt_netmap_init(void)
 {
        return ipt_register_target(&target_module);
 }
 
-static void __exit fini(void)
+static void __exit ipt_netmap_fini(void)
 {
        ipt_unregister_target(&target_module);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ipt_netmap_init);
+module_exit(ipt_netmap_fini);