2 * Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
3 * Copyright (c) 2012 Intel Corporation
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/init.h>
13 #include <linux/list.h>
14 #include <linux/skbuff.h>
16 #include <linux/netfilter.h>
17 #include <linux/netfilter_ipv6.h>
18 #include <linux/netfilter/nf_tables.h>
19 #include <net/netfilter/nf_conntrack.h>
20 #include <net/netfilter/nf_nat.h>
21 #include <net/netfilter/nf_nat_core.h>
22 #include <net/netfilter/nf_tables.h>
23 #include <net/netfilter/nf_tables_ipv6.h>
24 #include <net/netfilter/nf_nat_l3proto.h>
27 static unsigned int nft_nat_do_chain(void *priv,
29 const struct nf_hook_state *state)
31 struct nft_pktinfo pkt;
33 nft_set_pktinfo(&pkt, skb, state);
34 nft_set_pktinfo_ipv6(&pkt, skb);
36 return nft_do_chain(&pkt, priv);
39 static int nft_nat_ipv6_reg(struct net *net, const struct nf_hook_ops *ops)
41 return nf_nat_l3proto_ipv6_register_fn(net, ops);
44 static void nft_nat_ipv6_unreg(struct net *net, const struct nf_hook_ops *ops)
46 nf_nat_l3proto_ipv6_unregister_fn(net, ops);
49 static const struct nft_chain_type nft_chain_nat_ipv6 = {
51 .type = NFT_CHAIN_T_NAT,
52 .family = NFPROTO_IPV6,
54 .hook_mask = (1 << NF_INET_PRE_ROUTING) |
55 (1 << NF_INET_POST_ROUTING) |
56 (1 << NF_INET_LOCAL_OUT) |
57 (1 << NF_INET_LOCAL_IN),
59 [NF_INET_PRE_ROUTING] = nft_nat_do_chain,
60 [NF_INET_POST_ROUTING] = nft_nat_do_chain,
61 [NF_INET_LOCAL_OUT] = nft_nat_do_chain,
62 [NF_INET_LOCAL_IN] = nft_nat_do_chain,
64 .ops_register = nft_nat_ipv6_reg,
65 .ops_unregister = nft_nat_ipv6_unreg,
68 static int __init nft_chain_nat_ipv6_init(void)
70 nft_register_chain_type(&nft_chain_nat_ipv6);
75 static void __exit nft_chain_nat_ipv6_exit(void)
77 nft_unregister_chain_type(&nft_chain_nat_ipv6);
80 module_init(nft_chain_nat_ipv6_init);
81 module_exit(nft_chain_nat_ipv6_exit);
83 MODULE_LICENSE("GPL");
84 MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
85 MODULE_ALIAS_NFT_CHAIN(AF_INET6, "nat");