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Linux/include/net/netfilter/nf_nat_core.h

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  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 */
 32 

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