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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * 25-Jul-1998 Major changes to allow for ip chain table
4 *
5 * 3-Jan-2000 Named tables to allow packet selection for different uses.
6 */
7
8/*
9 * Format of an IP6 firewall descriptor
10 *
11 * src, dst, src_mask, dst_mask are always stored in network byte order.
12 * flags are stored in host byte order (of course).
13 * Port numbers are stored in HOST byte order.
14 */
15#ifndef _IP6_TABLES_H
16#define _IP6_TABLES_H
17
18#include <linux/if.h>
19#include <linux/in6.h>
20#include <linux/init.h>
21#include <linux/ipv6.h>
22#include <linux/skbuff.h>
23#include <uapi/linux/netfilter_ipv6/ip6_tables.h>
24
25extern void *ip6t_alloc_initial_table(const struct xt_table *);
26
27int ip6t_register_table(struct net *net, const struct xt_table *table,
28 const struct ip6t_replace *repl,
29 const struct nf_hook_ops *ops);
30void ip6t_unregister_table_pre_exit(struct net *net, const char *name);
31void ip6t_unregister_table_exit(struct net *net, const char *name);
32extern unsigned int ip6t_do_table(void *priv, struct sk_buff *skb,
33 const struct nf_hook_state *state);
34
35#ifdef CONFIG_NETFILTER_XTABLES_COMPAT
36#include <net/compat.h>
37
38struct compat_ip6t_entry {
39 struct ip6t_ip6 ipv6;
40 compat_uint_t nfcache;
41 __u16 target_offset;
42 __u16 next_offset;
43 compat_uint_t comefrom;
44 struct compat_xt_counters counters;
45 unsigned char elems[];
46};
47
48static inline struct xt_entry_target *
49compat_ip6t_get_target(struct compat_ip6t_entry *e)
50{
51 return (void *)e + e->target_offset;
52}
53
54#endif /* CONFIG_COMPAT */
55#endif /* _IP6_TABLES_H */
56

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source code of linux/include/linux/netfilter_ipv6/ip6_tables.h