LXR linux/include/net/netfilter/nf_nat

   1#ifndef _NF_NAT_CORE_H
   2#define _NF_NAT_CORE_H
   3#include <linux/list.h>
   4#include <net/netfilter/nf_conntrack.h>
   5#include <net/netfilter/nf_nat.h>
   6
   7/* This header used to share core functionality between the standalone
   8   NAT module, and the compatibility layer's use of NAT for masquerading. */
   9
  10extern unsigned int nf_nat_packet(struct nf_conn *ct,
  11                                  enum ip_conntrack_info ctinfo,
  12                                  unsigned int hooknum,
  13                                  struct sk_buff *skb);
  14
  15extern int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family);
  16
  17static inline int nf_nat_initialized(struct nf_conn *ct,
  18                                     enum nf_nat_manip_type manip)
  19{
  20        if (manip == NF_NAT_MANIP_SRC)
  21                return ct->status & IPS_SRC_NAT_DONE;
  22        else
  23                return ct->status & IPS_DST_NAT_DONE;
  24}
  25
  26struct nlattr;
  27
  28extern int
  29(*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
  30                                  enum nf_nat_manip_type manip,
  31                                  const struct nlattr *attr);
  32
  33#endif /* _NF_NAT_CORE_H */
  34