[mirror_ubuntu-bionic-kernel.git] / include / net / netfilter / nf_nat_core.h

/* SPDX-License-Identifier: GPL-2.0 */
#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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
5b1158e9 JK	2	#ifndef _NF_NAT_CORE_H
	3	#define _NF_NAT_CORE_H
	4	#include <linux/list.h>
	5	#include <net/netfilter/nf_conntrack.h>
4ba88779	6	#include <net/netfilter/nf_nat.h>
5b1158e9 JK	7
	8	/* This header used to share core functionality between the standalone
	9	NAT module, and the compatibility layer's use of NAT for masquerading. */
	10
4e77be46 JP	11	unsigned int nf_nat_packet(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
4e77be46 JP	12	unsigned int hooknum, struct sk_buff *skb);
5b1158e9	13
c7af6483	14	int nf_xfrm_me_harder(struct net net, struct sk_buff skb, unsigned int family);
5b1158e9 JK	15
	16	static inline int nf_nat_initialized(struct nf_conn *ct,
	17	enum nf_nat_manip_type manip)
	18	{
cbc9f2f4	19	if (manip == NF_NAT_MANIP_SRC)
a7c2f4d7	20	return ct->status & IPS_SRC_NAT_DONE;
5b1158e9	21	else
a7c2f4d7	22	return ct->status & IPS_DST_NAT_DONE;
5b1158e9	23	}
e6a7d3c0 PNA	24
	25	struct nlattr;
	26
	27	extern int
	28	(nfnetlink_parse_nat_setup_hook)(struct nf_conn ct,
	29	enum nf_nat_manip_type manip,
39938324	30	const struct nlattr *attr);
e6a7d3c0	31
5b1158e9	32	#endif /* _NF_NAT_CORE_H */