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 __sum16 (*checksum)(struct sk_buff *skb, unsigned int hook, 23 unsigned int dataoff, u_int8_t protocol); 24 __sum16 (*checksum_partial)(struct sk_buff *skb, unsigned int hook, 25 unsigned int dataoff, unsigned int len, 26 u_int8_t protocol); 27 }; 28 29 #ifdef CONFIG_NETFILTER 30 int ip6_route_me_harder(struct net *net, struct sk_buff *skb); 31 __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, 32 unsigned int dataoff, u_int8_t protocol); 33 34 int ipv6_netfilter_init(void); 35 void ipv6_netfilter_fini(void); 36 37 extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops; 38 static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void) 39 { 40 return rcu_dereference(nf_ipv6_ops); 41 } 42 43 #else /* CONFIG_NETFILTER */ 44 static inline int ipv6_netfilter_init(void) { return 0; } 45 static inline void ipv6_netfilter_fini(void) { return; } 46 static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void) { return NULL; } 47 #endif /* CONFIG_NETFILTER */ 48 49 #endif /*__LINUX_IP6_NETFILTER_H*/ 50