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/* 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);
unsigned int
nf_nat_inet_fn(void *priv, struct sk_buff *skb,
const struct nf_hook_state *state);
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 */
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