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#ifdef CONFIG_NETFILTER
  14extern int ip6_route_me_harder(struct sk_buff *skb);
  15extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
  16                                    unsigned int dataoff, u_int8_t protocol);
  17
  18extern int ipv6_netfilter_init(void);
  19extern 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 */
  25struct 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
  30extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops;
  31static 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 */
  37static inline int ipv6_netfilter_init(void) { return 0; }
  38static inline void ipv6_netfilter_fini(void) { return; }
  39#endif /* CONFIG_NETFILTER */
  40
  41#endif /*__LINUX_IP6_NETFILTER_H*/
  42