--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libpurple/stun.h Sun Apr 15 03:43:17 2007 +0000 @@ -0,0 +1,87 @@ +/** + * @file stun.h STUN API + * @ingroup core + * + * purple + * + * Purple is the legal property of its developers, whose names are too numerous + * to list here. Please refer to the COPYRIGHT file distributed with this + * source distribution. + * + * 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 _PURPLE_STUN_H_ +#define _PURPLE_STUN_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +/**************************************************************************/ +/** @name STUN API */ +/**************************************************************************/ +/*@{*/ + +typedef struct _PurpleStunNatDiscovery PurpleStunNatDiscovery; + +typedef enum { + PURPLE_STUN_STATUS_UNDISCOVERED = -1, + PURPLE_STUN_STATUS_UNKNOWN, /* no STUN server reachable */ + PURPLE_STUN_STATUS_DISCOVERING, + PURPLE_STUN_STATUS_DISCOVERED +} PurpleStunStatus; + +typedef enum { + PURPLE_STUN_NAT_TYPE_PUBLIC_IP, + PURPLE_STUN_NAT_TYPE_UNKNOWN_NAT, + PURPLE_STUN_NAT_TYPE_FULL_CONE, + PURPLE_STUN_NAT_TYPE_RESTRICTED_CONE, + PURPLE_STUN_NAT_TYPE_PORT_RESTRICTED_CONE, + PURPLE_STUN_NAT_TYPE_SYMMETRIC +} PurpleStunNatType; + +struct _PurpleStunNatDiscovery { + PurpleStunStatus status; + PurpleStunNatType type; + char publicip[16]; + char *servername; + time_t lookup_time; +}; + +typedef void (*StunCallback) (PurpleStunNatDiscovery *); + +/** + * Starts a NAT discovery. It returns a PurpleStunNatDiscovery if the discovery + * is already done. Otherwise the callback is called when the discovery is over + * and NULL is returned. + * + * @param cb The callback to call when the STUN discovery is finished if the + * discovery would block. If the discovery is done, this is NOT + * called. + * + * @return a PurpleStunNatDiscovery which includes the public IP and the type + * of NAT or NULL is discovery would block + */ +PurpleStunNatDiscovery *purple_stun_discover(StunCallback cb); + +void purple_stun_init(void); + +/*@}*/ + +#ifdef __cplusplus +} +#endif + +#endif /* _PURPLE_STUN_H_ */