include/linux/netfilter_ipv6.h

   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 #ifdef CONFIG_NETFILTER
  14 extern int ip6_route_me_harder(struct sk_buff *skb);
  15 extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
  16                                     unsigned int dataoff, u_int8_t protocol);
  17
  18 extern int ipv6_netfilter_init(void);
  19 extern void ipv6_netfilter_fini(void);
  20
  21 /*
  22  * Hook functions for ipv6 to allow xt_* modules to be built-in even
  23  * if IPv6 is a module.
  24  */
  25 struct nf_ipv6_ops {
  26         int (*chk_addr)(struct net *net, const struct in6_addr *addr,
  27                         const struct net_device *dev, int strict);
  28 };
  29
  30 extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops;
  31 static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void)
  32 {
  33         return rcu_dereference(nf_ipv6_ops);
  34 }
  35
  36 #else /* CONFIG_NETFILTER */
  37 static inline int ipv6_netfilter_init(void) { return 0; }
  38 static inline void ipv6_netfilter_fini(void) { return; }
  39 #endif /* CONFIG_NETFILTER */
  40
  41 #endif /*__LINUX_IP6_NETFILTER_H*/