[deliverable/linux.git] / include / net / netfilter / nf_nat_core.h

#ifndef _NF_NAT_CORE_H
#define _NF_NAT_CORE_H
#include <linux/list.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_nat.h>

/* This header used to share core functionality between the standalone
   NAT module, and the compatibility layer's use of NAT for masquerading. */

extern unsigned int nf_nat_packet(struct nf_conn *ct,
				  enum ip_conntrack_info ctinfo,
				  unsigned int hooknum,
				  struct sk_buff *skb);

extern int nf_nat_icmp_reply_translation(struct nf_conn *ct,
					 enum ip_conntrack_info ctinfo,
					 unsigned int hooknum,
					 struct sk_buff *skb);

static inline int nf_nat_initialized(struct nf_conn *ct,
				     enum nf_nat_manip_type manip)
{
	if (manip == IP_NAT_MANIP_SRC)
		return ct->status & IPS_SRC_NAT_DONE;
	else
		return ct->status & IPS_DST_NAT_DONE;
}

struct nlattr;

extern int
(*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
				  enum nf_nat_manip_type manip,
				  const struct nlattr *attr);

#endif /* _NF_NAT_CORE_H */
Commit	Line	Data
5b1158e9 JK	1	#ifndef _NF_NAT_CORE_H
	2	#define _NF_NAT_CORE_H
	3	#include <linux/list.h>
	4	#include <net/netfilter/nf_conntrack.h>
4ba88779	5	#include <net/netfilter/nf_nat.h>
5b1158e9 JK	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,
3db05fea	13	struct sk_buff *skb);
5b1158e9 JK	14
	15	extern int nf_nat_icmp_reply_translation(struct nf_conn *ct,
	16	enum ip_conntrack_info ctinfo,
	17	unsigned int hooknum,
3db05fea	18	struct sk_buff *skb);
5b1158e9 JK	19
	20	static inline int nf_nat_initialized(struct nf_conn *ct,
	21	enum nf_nat_manip_type manip)
	22	{
	23	if (manip == IP_NAT_MANIP_SRC)
a7c2f4d7	24	return ct->status & IPS_SRC_NAT_DONE;
5b1158e9	25	else
a7c2f4d7	26	return ct->status & IPS_DST_NAT_DONE;
5b1158e9	27	}
e6a7d3c0 PNA	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,
39938324	34	const struct nlattr *attr);
e6a7d3c0	35
5b1158e9	36	#endif /* _NF_NAT_CORE_H */