fedora core 6 1.2949 + vserver 2.2.0

[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 561efb1..9390e90 100644 (file)
--- a/net/ipv4/netfilter/ipt_NETMAP.c
+++ b/net/ipv4/netfilter/ipt_NETMAP.c
@@ -10,13 +10,16 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/config.h>
 #include <linux/ip.h>
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/netfilter.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
 
 #define MODULENAME "NETMAP"
 MODULE_LICENSE("GPL");
@@ -31,25 +34,13 @@ 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 *mr = targinfo;
+       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;
@@ -66,31 +57,32 @@ 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 new_ip, netmask;
-       const struct ip_nat_multi_range *mr = targinfo;
-       struct ip_nat_multi_range newrange;
+       __be32 new_ip, netmask;
+       const struct ip_nat_multi_range_compat *mr = targinfo;
+       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;
        new_ip |= mr->range[0].min_ip & netmask;
 
-       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)
+               { mr->range[0].flags | IP_NAT_RANGE_MAP_IPS,
+                 new_ip, new_ip,
+                 mr->range[0].min, mr->range[0].max });
 
        /* Hand modified range to generic setup. */
        return ip_nat_setup_info(ct, &newrange, hooknum);
@@ -99,19 +91,23 @@ 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);