2 * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
3 * Copyright (c) 2012-2013 Pablo Neira Ayuso <pablo@netfilter.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Development of this code funded by Astaro AG (http://www.astaro.com/)
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/ipv6.h>
15 #include <linux/netfilter_ipv6.h>
16 #include <net/netfilter/nf_tables.h>
17 #include <net/netfilter/nf_tables_ipv6.h>
19 static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
21 const struct net_device *in,
22 const struct net_device *out,
23 int (*okfn)(struct sk_buff *))
25 struct nft_pktinfo pkt;
27 if (unlikely(skb->len < sizeof(struct ipv6hdr))) {
29 pr_info("nf_tables_ipv6: ignoring short SOCK_RAW "
33 if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
36 return nft_do_chain_pktinfo(&pkt, ops);
39 static struct nft_af_info nft_af_ipv6 __read_mostly = {
40 .family = NFPROTO_IPV6,
41 .nhooks = NF_INET_NUMHOOKS,
44 [NF_INET_LOCAL_OUT] = nft_ipv6_output,
49 nft_do_chain_ipv6(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 struct nft_pktinfo pkt;
57 /* malformed packet, drop it */
58 if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
61 return nft_do_chain_pktinfo(&pkt, ops);
64 static struct nf_chain_type filter_ipv6 = {
65 .family = NFPROTO_IPV6,
67 .type = NFT_CHAIN_T_DEFAULT,
68 .hook_mask = (1 << NF_INET_LOCAL_IN) |
69 (1 << NF_INET_LOCAL_OUT) |
70 (1 << NF_INET_FORWARD) |
71 (1 << NF_INET_PRE_ROUTING) |
72 (1 << NF_INET_POST_ROUTING),
74 [NF_INET_LOCAL_IN] = nft_do_chain_ipv6,
75 [NF_INET_LOCAL_OUT] = nft_ipv6_output,
76 [NF_INET_FORWARD] = nft_do_chain_ipv6,
77 [NF_INET_PRE_ROUTING] = nft_do_chain_ipv6,
78 [NF_INET_POST_ROUTING] = nft_do_chain_ipv6,
82 static int __init nf_tables_ipv6_init(void)
84 nft_register_chain_type(&filter_ipv6);
85 return nft_register_afinfo(&nft_af_ipv6);
87 static void __exit nf_tables_ipv6_exit(void)
89 nft_unregister_afinfo(&nft_af_ipv6);
90 nft_unregister_chain_type(&filter_ipv6);
93 module_init(nf_tables_ipv6_init);
94 module_exit(nf_tables_ipv6_exit);
96 MODULE_LICENSE("GPL");
97 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
98 MODULE_ALIAS_NFT_FAMILY(AF_INET6);