MODULE_LICENSE("GPL");
MODULE_AUTHOR("Svenning Soerensen <svenning@post5.tele.dk>");
-MODULE_DESCRIPTION("iptables 1:1 NAT mapping of IP networks target");
+MODULE_DESCRIPTION("Xtables: 1:1 NAT mapping of IPv4 subnets");
static bool
-check(const char *tablename,
- const void *e,
- const struct xt_target *target,
- void *targinfo,
- unsigned int hook_mask)
+netmap_tg_check(const char *tablename, const void *e,
+ const struct xt_target *target, void *targinfo,
+ unsigned int hook_mask)
{
const struct nf_nat_multi_range_compat *mr = targinfo;
}
static unsigned int
-target(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)
+netmap_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)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
const struct nf_nat_multi_range_compat *mr = targinfo;
struct nf_nat_range newrange;
- NF_CT_ASSERT(hooknum == NF_IP_PRE_ROUTING
- || hooknum == NF_IP_POST_ROUTING
- || hooknum == NF_IP_LOCAL_OUT);
+ NF_CT_ASSERT(hooknum == NF_INET_PRE_ROUTING
+ || hooknum == NF_INET_POST_ROUTING
+ || hooknum == NF_INET_LOCAL_OUT);
ct = nf_ct_get(skb, &ctinfo);
netmask = ~(mr->range[0].min_ip ^ mr->range[0].max_ip);
- if (hooknum == NF_IP_PRE_ROUTING || hooknum == NF_IP_LOCAL_OUT)
+ if (hooknum == NF_INET_PRE_ROUTING || hooknum == NF_INET_LOCAL_OUT)
new_ip = ip_hdr(skb)->daddr & ~netmask;
else
new_ip = ip_hdr(skb)->saddr & ~netmask;
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, HOOK2MANIP(hooknum));
}
-static struct xt_target target_module __read_mostly = {
+static struct xt_target netmap_tg_reg __read_mostly = {
.name = "NETMAP",
.family = AF_INET,
- .target = target,
+ .target = netmap_tg,
.targetsize = sizeof(struct nf_nat_multi_range_compat),
.table = "nat",
- .hooks = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_POST_ROUTING) |
- (1 << NF_IP_LOCAL_OUT),
- .checkentry = check,
+ .hooks = (1 << NF_INET_PRE_ROUTING) |
+ (1 << NF_INET_POST_ROUTING) |
+ (1 << NF_INET_LOCAL_OUT),
+ .checkentry = netmap_tg_check,
.me = THIS_MODULE
};
-static int __init ipt_netmap_init(void)
+static int __init netmap_tg_init(void)
{
- return xt_register_target(&target_module);
+ return xt_register_target(&netmap_tg_reg);
}
-static void __exit ipt_netmap_fini(void)
+static void __exit netmap_tg_exit(void)
{
- xt_unregister_target(&target_module);
+ xt_unregister_target(&netmap_tg_reg);
}
-module_init(ipt_netmap_init);
-module_exit(ipt_netmap_fini);
+module_init(netmap_tg_init);
+module_exit(netmap_tg_exit);