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diff --git a/tinyNET/src/turn/tnet_turn_message.h b/tinyNET/src/turn/tnet_turn_message.h
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+++ b/tinyNET/src/turn/tnet_turn_message.h
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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_turn_message.h
+ * @brief Traversal Using Relays around NAT (TURN) messages.
+ *
+ * @author Mamadou Diop <diopmamadou(at)doubango.org>
+ *
+ * @date Created: Sat Nov 8 16:54:58 2009 mdiop
+ */
+#ifndef TNET_TURN_MESSAGE_H
+#define TNET_TURN_MESSAGE_H
+
+#include "../tinynet_config.h"
+
+#include "tsk_buffer.h"
+
+TNET_BEGIN_DECLS
+
+/**@ingroup tnet_turn_group
+ * TURN channel data message as per draft-ietf-behave-turn-16 subclause 11.4.
+*/
+typedef struct tnet_turn_channel_data_s
+{
+	TSK_DECLARE_OBJECT;
+
+	/*	draft-ietf-behave-turn-16 11.4.  The ChannelData Message
+		0                   1                   2                   3
+		0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		|         Channel Number        |            Length             |
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		|                                                               |
+		/                       Application Data                        /
+		/                                                               /
+		|                                                               |
+		|                               +-------------------------------+
+		|                               |
+		+-------------------------------+
+	*/
+	uint16_t chanel_number;
+	uint16_t length;
+	void* data;
+}
+tnet_turn_channel_data_t;
+
+tsk_buffer_t* tnet_turn_channel_data_serialize(const tnet_turn_channel_data_t *message);
+
+tnet_turn_channel_data_t* tnet_turn_channel_data_create(uint16_t number, uint16_t length, const void* data);
+tnet_turn_channel_data_t* tnet_turn_channel_data_create_null();
+
+TINYNET_GEXTERN const tsk_object_def_t *tnet_turn_channel_data_def_t;
+
+TNET_END_DECLS
+
+#endif /* TNET_TURN_MESSAGE_H */