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 nf_hook_state
*state
)
44 return nf_nat_ipv6_fn(ops
, skb
, state
->in
, state
->out
, nft_nat_do_chain
);
47 static unsigned int nft_nat_ipv6_in(const struct nf_hook_ops
*ops
,
49 const struct nf_hook_state
*state
)
51 return nf_nat_ipv6_in(ops
, skb
, state
->in
, state
->out
, nft_nat_do_chain
);
54 static unsigned int nft_nat_ipv6_out(const struct nf_hook_ops
*ops
,
56 const struct nf_hook_state
*state
)
58 return nf_nat_ipv6_out(ops
, skb
, state
->in
, state
->out
, nft_nat_do_chain
);
61 static unsigned int nft_nat_ipv6_local_fn(const struct nf_hook_ops
*ops
,
63 const struct nf_hook_state
*state
)
65 return nf_nat_ipv6_local_fn(ops
, skb
, state
->in
, state
->out
, nft_nat_do_chain
);
68 static const struct nf_chain_type nft_chain_nat_ipv6
= {
70 .type
= NFT_CHAIN_T_NAT
,
71 .family
= NFPROTO_IPV6
,
73 .hook_mask
= (1 << NF_INET_PRE_ROUTING
) |
74 (1 << NF_INET_POST_ROUTING
) |
75 (1 << NF_INET_LOCAL_OUT
) |
76 (1 << NF_INET_LOCAL_IN
),
78 [NF_INET_PRE_ROUTING
] = nft_nat_ipv6_in
,
79 [NF_INET_POST_ROUTING
] = nft_nat_ipv6_out
,
80 [NF_INET_LOCAL_OUT
] = nft_nat_ipv6_local_fn
,
81 [NF_INET_LOCAL_IN
] = nft_nat_ipv6_fn
,
85 static int __init
nft_chain_nat_ipv6_init(void)
89 err
= nft_register_chain_type(&nft_chain_nat_ipv6
);
96 static void __exit
nft_chain_nat_ipv6_exit(void)
98 nft_unregister_chain_type(&nft_chain_nat_ipv6
);
101 module_init(nft_chain_nat_ipv6_init
);
102 module_exit(nft_chain_nat_ipv6_exit
);
104 MODULE_LICENSE("GPL");
105 MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
106 MODULE_ALIAS_NFT_CHAIN(AF_INET6
, "nat");