1/* IPv6-specific defines for netfilter.
2 * (C)1998 Rusty Russell -- This code is GPL.
3 * (C)1999 David Jeffery
4 *   this header was blatantly ripped from netfilter_ipv4.h
5 *   it's amazing what adding a bunch of 6s can do =8^)
6 */
7#ifndef __LINUX_IP6_NETFILTER_H
8#define __LINUX_IP6_NETFILTER_H
9
10#include <uapi/linux/netfilter_ipv6.h>
11
12/*
13 * Hook functions for ipv6 to allow xt_* modules to be built-in even
14 * if IPv6 is a module.
15 */
16struct nf_ipv6_ops {
17	int (*chk_addr)(struct net *net, const struct in6_addr *addr,
18			const struct net_device *dev, int strict);
19	void (*route_input)(struct sk_buff *skb);
20	int (*fragment)(struct net *net, struct sock *sk, struct sk_buff *skb,
21			int (*output)(struct net *, struct sock *, struct sk_buff *));
22};
23
24#ifdef CONFIG_NETFILTER
25int ip6_route_me_harder(struct net *net, struct sk_buff *skb);
26__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
27			unsigned int dataoff, u_int8_t protocol);
28
29int ipv6_netfilter_init(void);
30void ipv6_netfilter_fini(void);
31
32extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops;
33static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void)
34{
35	return rcu_dereference(nf_ipv6_ops);
36}
37
38#else /* CONFIG_NETFILTER */
39static inline int ipv6_netfilter_init(void) { return 0; }
40static inline void ipv6_netfilter_fini(void) { return; }
41static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void) { return NULL; }
42#endif /* CONFIG_NETFILTER */
43
44#endif /*__LINUX_IP6_NETFILTER_H*/
45