root/include/net/netfilter/nf_nat_core.h

INCLUDED FROM

DEFINITIONS

1. nf_nat_initialized

#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 test_bit(IPS_SRC_NAT_DONE_BIT, &ct->status);
        else
                return test_bit(IPS_DST_NAT_DONE_BIT, &ct->status);
}
#endif /* _NF_NAT_CORE_H */