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include/linux/netfilter_ipv6.h 1.43 KB
81f7e3824   Eric Lee   Initial Release, ...
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  /* IPv6-specific defines for netfilter. 
   * (C)1998 Rusty Russell -- This code is GPL.
   * (C)1999 David Jeffery
   *   this header was blatantly ripped from netfilter_ipv4.h 
   *   it's amazing what adding a bunch of 6s can do =8^)
   */
  #ifndef __LINUX_IP6_NETFILTER_H
  #define __LINUX_IP6_NETFILTER_H
  
  #include <uapi/linux/netfilter_ipv6.h>
  
  /*
   * Hook functions for ipv6 to allow xt_* modules to be built-in even
   * if IPv6 is a module.
   */
  struct nf_ipv6_ops {
  	int (*chk_addr)(struct net *net, const struct in6_addr *addr,
  			const struct net_device *dev, int strict);
  	void (*route_input)(struct sk_buff *skb);
  	int (*fragment)(struct net *net, struct sock *sk, struct sk_buff *skb,
  			int (*output)(struct net *, struct sock *, struct sk_buff *));
  };
  
  #ifdef CONFIG_NETFILTER
  int ip6_route_me_harder(struct net *net, struct sk_buff *skb);
  __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
  			unsigned int dataoff, u_int8_t protocol);
  
  int ipv6_netfilter_init(void);
  void ipv6_netfilter_fini(void);
  
  extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops;
  static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void)
  {
  	return rcu_dereference(nf_ipv6_ops);
  }
  
  #else /* CONFIG_NETFILTER */
  static inline int ipv6_netfilter_init(void) { return 0; }
  static inline void ipv6_netfilter_fini(void) { return; }
  static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void) { return NULL; }
  #endif /* CONFIG_NETFILTER */
  
  #endif /*__LINUX_IP6_NETFILTER_H*/