nat_detect.h

/* 
 * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
 * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
 *
 * This program 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.
 *
 * This program 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 __PJNATH_NAT_DETECT_H__
#define __PJNATH_NAT_DETECT_H__
 
#include <pjnath/stun_session.h>
 
 
PJ_BEGIN_DECL
 
 
typedef enum pj_stun_nat_type
{
    PJ_STUN_NAT_TYPE_UNKNOWN,
 
    PJ_STUN_NAT_TYPE_ERR_UNKNOWN,
 
    PJ_STUN_NAT_TYPE_OPEN,
 
    PJ_STUN_NAT_TYPE_BLOCKED,
 
    PJ_STUN_NAT_TYPE_SYMMETRIC_UDP,
 
    PJ_STUN_NAT_TYPE_FULL_CONE,
 
    PJ_STUN_NAT_TYPE_SYMMETRIC,
 
    PJ_STUN_NAT_TYPE_RESTRICTED,
 
    PJ_STUN_NAT_TYPE_PORT_RESTRICTED
 
} pj_stun_nat_type;
 
 
typedef struct pj_stun_nat_detect_result
{
    pj_status_t          status;
 
    const char          *status_text;
 
    pj_stun_nat_type     nat_type;
 
    const char          *nat_type_name;
 
} pj_stun_nat_detect_result;
 
 
typedef void pj_stun_nat_detect_cb(void *user_data,
                                   const pj_stun_nat_detect_result *res);
 
 
PJ_DECL(const char*) pj_stun_get_nat_name(pj_stun_nat_type type);
 
 
PJ_DECL(pj_status_t) pj_stun_detect_nat_type(const pj_sockaddr_in *server,
                                             pj_stun_config *stun_cfg,
                                             void *user_data,
                                             pj_stun_nat_detect_cb *cb);
 
 
PJ_DECL(pj_status_t) pj_stun_detect_nat_type2(const pj_sockaddr *server,
                                              pj_stun_config *stun_cfg,
                                              void *user_data,
                                              pj_stun_nat_detect_cb *cb);
 
 
PJ_END_DECL
 
 
#endif  /* __PJNATH_NAT_DETECT_H__ */