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/*
* Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
* Copyright (c) 2012 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
#include <linux/netfilter/nf_tables.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_nat.h>
#include <net/netfilter/nf_tables.h>
#include <net/netfilter/nf_tables_ipv6.h>
#include <net/ipv6.h>
static unsigned int nft_nat_do_chain(void *priv,
struct sk_buff *skb,
const struct nf_hook_state *state)
{
struct nft_pktinfo pkt;
nft_set_pktinfo(&pkt, skb, state);
nft_set_pktinfo_ipv6(&pkt, skb);
return nft_do_chain(&pkt, priv);
}
static int nft_nat_ipv6_reg(struct net *net, const struct nf_hook_ops *ops)
{
return nf_nat_ipv6_register_fn(net, ops);
}
static void nft_nat_ipv6_unreg(struct net *net, const struct nf_hook_ops *ops)
{
nf_nat_ipv6_unregister_fn(net, ops);
}
static const struct nft_chain_type nft_chain_nat_ipv6 = {
.name = "nat",
.type = NFT_CHAIN_T_NAT,
.family = NFPROTO_IPV6,
.owner = THIS_MODULE,
.hook_mask = (1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_POST_ROUTING) |
(1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_LOCAL_IN),
.hooks = {
[NF_INET_PRE_ROUTING] = nft_nat_do_chain,
[NF_INET_POST_ROUTING] = nft_nat_do_chain,
[NF_INET_LOCAL_OUT] = nft_nat_do_chain,
[NF_INET_LOCAL_IN] = nft_nat_do_chain,
},
.ops_register = nft_nat_ipv6_reg,
.ops_unregister = nft_nat_ipv6_unreg,
};
static int __init nft_chain_nat_ipv6_init(void)
{
nft_register_chain_type(&nft_chain_nat_ipv6);
return 0;
}
static void __exit nft_chain_nat_ipv6_exit(void)
{
nft_unregister_chain_type(&nft_chain_nat_ipv6);
}
module_init(nft_chain_nat_ipv6_init);
module_exit(nft_chain_nat_ipv6_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
MODULE_ALIAS_NFT_CHAIN(AF_INET6, "nat");
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