LXR linux/include/linux/netfilter

   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