nat_helper.h

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/*
 * $Id: nat_helper.h 566 2008-06-05 12:55:00Z vingarzan $
 *
 *
 * Copyright (C) 2005 Porta Software Ltd.
 *
 * This file is part of ser, a free SIP server.
 *
 * ser is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * For a license to use the ser software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    info@iptel.org
 *
 * ser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef P_CSCF_NAT_HELPER_H_
#define P_CSCF_NAT_HELPER_H_

#include "registrar_storage.h"

typedef struct {
    const char *cnetaddr;   
    uint32_t netaddr;       
    uint32_t mask;          
} network_t;

char * ser_memmem(const void *b1, const void *b2, size_t len1, size_t len2);
int is1918addr(str *saddr);

#define NAT_UAC_TEST_C_1918 0x01

#define NAT_UAC_TEST_RCVD   0x02

#define NAT_UAC_TEST_V_1918 0x04

#define NAT_UAC_TEST_S_1918 0x08

#define NAT_UAC_TEST_RPORT  0x10 
 
int nat_send_ping(r_contact *c);
int nat_uac_test(struct sip_msg * msg);
int nat_prepare_1918addr();
r_nat_dest* nat_msg_origin(struct sip_msg * msg);
int requires_nat(struct sip_msg * msg);


#endif

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