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 #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
  10 unsigned int nf_nat_packet(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
  11                            unsigned int hooknum, struct sk_buff *skb);
  12
  13 int nf_xfrm_me_harder(struct net *net, struct sk_buff *skb, unsigned int family);
  14
  15 static inline int nf_nat_initialized(struct nf_conn *ct,
  16                                      enum nf_nat_manip_type manip)
  17 {
  18         if (manip == NF_NAT_MANIP_SRC)
  19                 return ct->status & IPS_SRC_NAT_DONE;
  20         else
  21                 return ct->status & IPS_DST_NAT_DONE;
  22 }
  23
  24 struct nlattr;
  25
  26 extern int
  27 (*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
  28                                   enum nf_nat_manip_type manip,
  29                                   const struct nlattr *attr);
  30
  31 #endif /* _NF_NAT_CORE_H */