include/linux/netfilter_ipv4/ip_nat_core.h

   1 #ifndef _IP_NAT_CORE_H
   2 #define _IP_NAT_CORE_H
   3 #include <linux/list.h>
   4 #include <linux/netfilter_ipv4/ip_conntrack.h>
   5
   6 /* This header used to share core functionality between the standalone
   7    NAT module, and the compatibility layer's use of NAT for masquerading. */
   8 extern int ip_nat_init(void);
   9 extern void ip_nat_cleanup(void);
  10
  11 extern unsigned int do_bindings(struct ip_conntrack *ct,
  12                                 enum ip_conntrack_info conntrackinfo,
  13                                 struct ip_nat_info *info,
  14                                 unsigned int hooknum,
  15                                 struct sk_buff **pskb);
  16
  17 extern struct list_head protos;
  18
  19 extern int icmp_reply_translation(struct sk_buff **pskb,
  20                                   struct ip_conntrack *conntrack,
  21                                   unsigned int hooknum,
  22                                   int dir);
  23
  24 extern void replace_in_hashes(struct ip_conntrack *conntrack,
  25                               struct ip_nat_info *info);
  26 extern void place_in_hashes(struct ip_conntrack *conntrack,
  27                             struct ip_nat_info *info);
  28
  29 /* Built-in protocols. */
  30 extern struct ip_nat_protocol ip_nat_protocol_tcp;
  31 extern struct ip_nat_protocol ip_nat_protocol_udp;
  32 extern struct ip_nat_protocol ip_nat_protocol_icmp;
  33 #endif /* _IP_NAT_CORE_H */