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(const struct nf_hook_ops
*ops
,
29 const struct net_device
*in
,
30 const struct net_device
*out
,
33 struct nft_pktinfo pkt
;
35 nft_set_pktinfo_ipv6(&pkt
, ops
, skb
, in
, out
);
37 return nft_do_chain(&pkt
, ops
);
40 static unsigned int nft_nat_ipv6_fn(const struct nf_hook_ops
*ops
,
42 const struct net_device
*in
,
43 const struct net_device
*out
,
44 int (*okfn
)(struct sk_buff
*))
46 return nf_nat_ipv6_fn(ops
, skb
, in
, out
, nft_nat_do_chain
);
49 static unsigned int nft_nat_ipv6_in(const struct nf_hook_ops
*ops
,
51 const struct net_device
*in
,
52 const struct net_device
*out
,
53 int (*okfn
)(struct sk_buff
*))
55 return nf_nat_ipv6_in(ops
, skb
, in
, out
, nft_nat_do_chain
);
58 static unsigned int nft_nat_ipv6_out(const struct nf_hook_ops
*ops
,
60 const struct net_device
*in
,
61 const struct net_device
*out
,
62 int (*okfn
)(struct sk_buff
*))
64 return nf_nat_ipv6_out(ops
, skb
, in
, out
, nft_nat_do_chain
);
67 static unsigned int nft_nat_ipv6_local_fn(const struct nf_hook_ops
*ops
,
69 const struct net_device
*in
,
70 const struct net_device
*out
,
71 int (*okfn
)(struct sk_buff
*))
73 return nf_nat_ipv6_local_fn(ops
, skb
, in
, out
, nft_nat_do_chain
);
76 static const struct nf_chain_type nft_chain_nat_ipv6
= {
78 .type
= NFT_CHAIN_T_NAT
,
79 .family
= NFPROTO_IPV6
,
81 .hook_mask
= (1 << NF_INET_PRE_ROUTING
) |
82 (1 << NF_INET_POST_ROUTING
) |
83 (1 << NF_INET_LOCAL_OUT
) |
84 (1 << NF_INET_LOCAL_IN
),
86 [NF_INET_PRE_ROUTING
] = nft_nat_ipv6_in
,
87 [NF_INET_POST_ROUTING
] = nft_nat_ipv6_out
,
88 [NF_INET_LOCAL_OUT
] = nft_nat_ipv6_local_fn
,
89 [NF_INET_LOCAL_IN
] = nft_nat_ipv6_fn
,
93 static int __init
nft_chain_nat_ipv6_init(void)
97 err
= nft_register_chain_type(&nft_chain_nat_ipv6
);
104 static void __exit
nft_chain_nat_ipv6_exit(void)
106 nft_unregister_chain_type(&nft_chain_nat_ipv6
);
109 module_init(nft_chain_nat_ipv6_init
);
110 module_exit(nft_chain_nat_ipv6_exit
);
112 MODULE_LICENSE("GPL");
113 MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
114 MODULE_ALIAS_NFT_CHAIN(AF_INET6
, "nat");