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/* msg_dsx_rvd.c
* WiMax MAC Management DSX-RVD Message decoder
*
* Copyright (c) 2007 by Intel Corporation.
*
* Author: Lu Pan <lu.pan@intel.com>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* 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.
*/
/* Include files */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gmodule.h>
#include <epan/packet.h>
#include "wimax_mac.h"
/* forward reference */
void dissect_mac_mgmt_msg_dsx_rvd_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static gint proto_mac_mgmt_msg_dsx_rvd_decoder = -1;
static gint ett_mac_mgmt_msg_dsx_rvd_decoder = -1;
/* Setup protocol subtree array */
static gint *ett[] =
{
&ett_mac_mgmt_msg_dsx_rvd_decoder,
};
/* fix fields */
static gint hf_dsx_rvd_message_type = -1;
static gint hf_dsx_rvd_transaction_id = -1;
static gint hf_dsx_rvd_confirmation_code = -1;
/* DSX_RVD display */
static hf_register_info hf_dsx_rvd[] =
{
{
&hf_dsx_rvd_message_type,
{"MAC Management Message Type", "wimax.macmgtmsgtype.dsx_rvd", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}
},
{
&hf_dsx_rvd_confirmation_code,
{ "Confirmation code", "wimax.dsx_rvd.confirmation_code", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}
},
{
&hf_dsx_rvd_transaction_id,
{ "Transaction ID", "wimax.dsx_rvd.transaction_id", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}
}
};
/* Register Wimax Mac Payload Protocol and Dissector */
void proto_register_mac_mgmt_msg_dsx_rvd(void)
{
if (proto_mac_mgmt_msg_dsx_rvd_decoder == -1)
{
proto_mac_mgmt_msg_dsx_rvd_decoder = proto_register_protocol (
"WiMax DSX-RVD Message", /* name */
"WiMax DSX-RVD (dsx)", /* short name */
"dsx" /* abbrev */
);
proto_register_field_array(proto_mac_mgmt_msg_dsx_rvd_decoder, hf_dsx_rvd, array_length(hf_dsx_rvd));
proto_register_subtree_array(ett, array_length(ett));
}
}
/* Decode DSX-RVD messages. */
void dissect_mac_mgmt_msg_dsx_rvd_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint offset = 0;
guint tvb_len, payload_type;
proto_item *dsx_rvd_item = NULL;
proto_tree *dsx_rvd_tree = NULL;
if(tree)
{ /* we are being asked for details */
/* get the message type */
payload_type = tvb_get_guint8(tvb, offset);
/* ensure the message type is DSX-RVD */
if(payload_type != MAC_MGMT_MSG_DSX_RVD)
return;
/* Get the tvb length */
tvb_len = tvb_length(tvb);
/* display MAC message type */
dsx_rvd_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsx_rvd_decoder, tvb, offset, tvb_len, "DSx Received (DSX-RVD) (%u bytes)", tvb_len);
/* add MAC DSx subtree */
dsx_rvd_tree = proto_item_add_subtree(dsx_rvd_item, ett_mac_mgmt_msg_dsx_rvd_decoder);
/* display the Message Type */
proto_tree_add_item(dsx_rvd_tree, hf_dsx_rvd_message_type, tvb, offset, 1, FALSE);
/* move to next field */
offset++;
/* display the Transaction ID */
proto_tree_add_item(dsx_rvd_tree, hf_dsx_rvd_transaction_id, tvb, offset, 2, FALSE);
/* move to next field */
offset += 2;
/* display the Confirmation Code */
proto_tree_add_item(dsx_rvd_tree, hf_dsx_rvd_confirmation_code, tvb, offset, 1, FALSE);
}
}
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