[mirror_ubuntu-zesty-kernel.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. */

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

int nf_xfrm_me_harder(struct net *net, struct sk_buff *skb, unsigned int family);

static inline int nf_nat_initialized(struct nf_conn *ct,
				     enum nf_nat_manip_type manip)
{
	if (manip == NF_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
4e77be46 JP	10	unsigned int nf_nat_packet(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
4e77be46 JP	11	unsigned int hooknum, struct sk_buff *skb);
5b1158e9	12
c7af6483	13	int nf_xfrm_me_harder(struct net net, struct sk_buff skb, unsigned int family);
5b1158e9 JK	14
	15	static inline int nf_nat_initialized(struct nf_conn *ct,
	16	enum nf_nat_manip_type manip)
	17	{
cbc9f2f4	18	if (manip == NF_NAT_MANIP_SRC)
a7c2f4d7	19	return ct->status & IPS_SRC_NAT_DONE;
5b1158e9	20	else
a7c2f4d7	21	return ct->status & IPS_DST_NAT_DONE;
5b1158e9	22	}
e6a7d3c0 PNA	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,
39938324	29	const struct nlattr *attr);
e6a7d3c0	30
5b1158e9	31	#endif /* _NF_NAT_CORE_H */