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 extern 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
15 extern int nf_nat_icmp_reply_translation(struct nf_conn *ct,
16 enum ip_conntrack_info ctinfo,
17 unsigned int hooknum,
18 struct sk_buff *skb);
19
nf_nat_initialized(struct nf_conn * ct,enum nf_nat_manip_type manip)20 static inline int nf_nat_initialized(struct nf_conn *ct,
21 enum nf_nat_manip_type manip)
22 {
23 if (manip == NF_NAT_MANIP_SRC)
24 return ct->status & IPS_SRC_NAT_DONE;
25 else
26 return ct->status & IPS_DST_NAT_DONE;
27 }
28
29 struct nlattr;
30
31 extern int
32 (*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
33 enum nf_nat_manip_type manip,
34 const struct nlattr *attr);
35
36 #endif /* _NF_NAT_CORE_H */
37