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 */
16 struct 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
25 int 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
29 int ipv6_netfilter_init(void);
30 void ipv6_netfilter_fini(void);
31
32 extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops;
nf_get_ipv6_ops(void)33 static 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 */
ipv6_netfilter_init(void)39 static inline int ipv6_netfilter_init(void) { return 0; }
ipv6_netfilter_fini(void)40 static inline void ipv6_netfilter_fini(void) { return; }
nf_get_ipv6_ops(void)41 static 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