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/*
* Copyright (C) 2009-2010 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 DOUBANGO.
*
*/
/**@file tnet_stun.h
* @brief Session Traversal Utilities for NAT (STUN) implementation as per RFC 5389 and RFC 3489(Obsolete).
*
* @author Mamadou Diop <diopmamadou(at)doubango.org>
*
* @date Created: Sat Nov 8 16:54:58 2009 mdiop
*/
#ifndef TNET_STUN_H
#define TNET_STUN_H
#include "tinynet_config.h"
#include "stun/tnet_stun_message.h"
#include "tnet_types.h"
#include "tnet_socket.h"
#include "tsk_object.h"
TNET_BEGIN_DECLS
/**@ingroup tnet_stun_group
*/
typedef uint64_t tnet_stun_binding_id_t;
/**@ingroup tnet_stun_group
* @def TNET_STUN_INVALID_BINDING_ID
* STUN2 invalid binding id.
**/
/**@ingroup tnet_stun_group
* @def TNET_STUN_IS_VALID_BINDING_ID
* Checks the validity of the STUN @a id.
**/
#define TNET_STUN_INVALID_BINDING_ID 0
#define TNET_STUN_IS_VALID_BINDING_ID(id) (id != TNET_STUN_INVALID_BINDING_ID)
/**@ingroup tnet_stun_group
* Default port for both TCP and UDP protos as per RFC 5389 subclause 9.
**/
#define TNET_STUN_TCP_UDP_DEFAULT_PORT 3478
/**@ingroup tnet_stun_group
* Default port for TLS protocol as per RFC 5389 subclause 9.
**/
#define TNET_STUN_TLS_DEFAULT_PORT 5349
/**@ingroup tnet_stun_group
* STUN2 magic cookie value in network byte order as per RFC 5389 subclause 6.
**/
#define TNET_STUN_MAGIC_COOKIE 0x2112A442
/**@ingroup tnet_stun_group
* STUN2 header size as per RFC 5389 subclause 6.
**/
#define TNET_STUN_HEADER_SIZE 20
/**@ingroup tnet_stun_group
* STUN2 binding context.
**/
typedef struct tnet_stun_binding_s
{
TSK_DECLARE_OBJECT;
//! A unique id to identify this binding.
tnet_stun_binding_id_t id;
//! The username to authenticate to the STUN server.
char* username;
//! The password to authenticate to the STUN server.
char* password;
//! The realm.
char* realm;
//! The nonce.
char* nonce;
//! The client name.
char* software;
//! Local file descriptor for which to get server reflexive address.
tnet_fd_t localFD;
//! The type of the bound socket.
tnet_socket_type_t socket_type;
//! The address of the STUN server.
struct sockaddr_storage server;
//! Server reflexive address of the local socket(STUN1 as per RFC 3489).
tnet_stun_attribute_mapped_addr_t *maddr;
//! XORed server reflexive address (STUN2 as per RFC 5389).
tnet_stun_attribute_xmapped_addr_t *xmaddr;
}tnet_stun_binding_t;
TINYNET_GEXTERN const tsk_object_def_t *tnet_stun_binding_def_t;
/**@ingroup tnet_stun_group
* List of @ref tnet_stun_binding_t elements.
**/
typedef tsk_list_t tnet_stun_bindings_L_t;
//#if defined(__SYMBIAN32__) || ANDROID /* Forward declaration */
struct tnet_nat_context_s;
//#endif
int tnet_stun_send_reliably(const tnet_stun_message_t* message);
tnet_stun_response_t* tnet_stun_send_unreliably(tnet_fd_t localFD, uint16_t RTO, uint16_t Rc, const tnet_stun_message_t* message, struct sockaddr* server);
TINYNET_API tnet_stun_binding_id_t tnet_stun_bind(const struct tnet_nat_context_s* nat_context, tnet_fd_t localFD);
int tnet_stun_transacid_cmp(const tnet_stun_transacid_t id1, const tnet_stun_transacid_t id2);
TNET_END_DECLS
#endif /* TNET_STUN_H */
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