/*
 * Copyright (C) 2006 Lennert Buytenhek
 * Use and distribution permitted according to the terms of the LGPL.
 */

#ifndef __TCP_SNAT_H
#define __TCP_SNAT_H

#include <libiptc/libiptc.h>
#include </usr/include/linux/netfilter_ipv4/ip_conntrack_tuple.h>
#include </usr/include/linux/netfilter_ipv4/ip_nat.h>

/*
 * iptables -t nat -A POSTROUTING -s $orig_src_ip -d $dst_ip -p tcp -m tcp
 *     --sport $src_port --dport $dst_port -j SNAT --to-source $new_src_ip
 */
struct tcp_snat_request
{
	u_int32_t		dst_ip;
	u_int16_t		dst_port;
	u_int32_t		orig_src_ip;
	u_int16_t		src_port;
	u_int32_t		new_src_ip;
};

int insert_snat_rule(struct tcp_snat_request *tsr);


#endif