include/net/netfilter/nf_nat_core.h

   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
   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
   9 extern unsigned int nf_nat_packet(struct nf_conn *ct,
  10                                   enum ip_conntrack_info ctinfo,
  11                                   unsigned int hooknum,
  12                                   struct sk_buff **pskb);
  13
  14 extern int nf_nat_icmp_reply_translation(struct nf_conn *ct,
  15                                          enum ip_conntrack_info ctinfo,
  16                                          unsigned int hooknum,
  17                                          struct sk_buff **pskb);
  18
  19 static inline int nf_nat_initialized(struct nf_conn *ct,
  20                                      enum nf_nat_manip_type manip)
  21 {
  22         if (manip == IP_NAT_MANIP_SRC)
  23                 return test_bit(IPS_SRC_NAT_DONE_BIT, &ct->status);
  24         else
  25                 return test_bit(IPS_DST_NAT_DONE_BIT, &ct->status);
  26 }
  27 #endif /* _NF_NAT_CORE_H */