| /* |
| * Copyright (c) 2012-2014 Patrick McHardy <kaber@trash.net> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/ip.h> |
| #include <linux/ipv6.h> |
| #include <linux/netfilter_ipv4.h> |
| #include <linux/netfilter_ipv6.h> |
| #include <net/netfilter/nf_tables.h> |
| #include <net/netfilter/nf_tables_ipv4.h> |
| #include <net/netfilter/nf_tables_ipv6.h> |
| #include <net/ip.h> |
| |
| static unsigned int nft_do_chain_inet(void *priv, struct sk_buff *skb, |
| const struct nf_hook_state *state) |
| { |
| struct nft_pktinfo pkt; |
| |
| nft_set_pktinfo(&pkt, skb, state); |
| |
| switch (state->pf) { |
| case NFPROTO_IPV4: |
| nft_set_pktinfo_ipv4(&pkt, skb); |
| break; |
| case NFPROTO_IPV6: |
| nft_set_pktinfo_ipv6(&pkt, skb); |
| break; |
| default: |
| break; |
| } |
| |
| return nft_do_chain(&pkt, priv); |
| } |
| |
| static const struct nf_chain_type filter_inet = { |
| .name = "filter", |
| .type = NFT_CHAIN_T_DEFAULT, |
| .family = NFPROTO_INET, |
| .owner = THIS_MODULE, |
| .hook_mask = (1 << NF_INET_LOCAL_IN) | |
| (1 << NF_INET_LOCAL_OUT) | |
| (1 << NF_INET_FORWARD) | |
| (1 << NF_INET_PRE_ROUTING) | |
| (1 << NF_INET_POST_ROUTING), |
| .hooks = { |
| [NF_INET_LOCAL_IN] = nft_do_chain_inet, |
| [NF_INET_LOCAL_OUT] = nft_do_chain_inet, |
| [NF_INET_FORWARD] = nft_do_chain_inet, |
| [NF_INET_PRE_ROUTING] = nft_do_chain_inet, |
| [NF_INET_POST_ROUTING] = nft_do_chain_inet, |
| }, |
| }; |
| |
| static int __init nf_tables_inet_init(void) |
| { |
| return nft_register_chain_type(&filter_inet); |
| } |
| |
| static void __exit nf_tables_inet_exit(void) |
| { |
| nft_unregister_chain_type(&filter_inet); |
| } |
| |
| module_init(nf_tables_inet_init); |
| module_exit(nf_tables_inet_exit); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); |
| MODULE_ALIAS_NFT_CHAIN(1, "filter"); |