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Linux/include/linux/netfilter_ipv6.h

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  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;
 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 */
 39 static inline int ipv6_netfilter_init(void) { return 0; }
 40 static inline void ipv6_netfilter_fini(void) { return; }
 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 

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