115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/* msg_dsx_rvd.c
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* WiMax MAC Management DSX-RVD Message decoder
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*
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* Copyright (c) 2007 by Intel Corporation.
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*
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* Author: Lu Pan <lu.pan@intel.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1999 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Include files */
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#include "config.h"
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#include <glib.h>
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#include <epan/packet.h>
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#include "wimax_mac.h"
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static gint proto_mac_mgmt_msg_dsx_rvd_decoder = -1;
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static gint ett_mac_mgmt_msg_dsx_rvd_decoder = -1;
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/* fix fields */
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static gint hf_dsx_rvd_message_type = -1;
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static gint hf_dsx_rvd_transaction_id = -1;
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static gint hf_dsx_rvd_confirmation_code = -1;
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/* Decode DSX-RVD messages. */
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void dissect_mac_mgmt_msg_dsx_rvd_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
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{
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guint offset = 0;
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guint tvb_len, payload_type;
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proto_item *dsx_rvd_item = NULL;
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proto_tree *dsx_rvd_tree = NULL;
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if(tree)
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{ /* we are being asked for details */
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/* get the message type */
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payload_type = tvb_get_guint8(tvb, offset);
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/* ensure the message type is DSX-RVD */
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if(payload_type != MAC_MGMT_MSG_DSX_RVD)
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return;
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/* Get the tvb reported length */
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tvb_len = tvb_reported_length(tvb);
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/* display MAC message type */
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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);
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/* add MAC DSx subtree */
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dsx_rvd_tree = proto_item_add_subtree(dsx_rvd_item, ett_mac_mgmt_msg_dsx_rvd_decoder);
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/* display the Message Type */
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proto_tree_add_item(dsx_rvd_tree, hf_dsx_rvd_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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/* move to next field */
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offset++;
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/* display the Transaction ID */
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proto_tree_add_item(dsx_rvd_tree, hf_dsx_rvd_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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/* move to next field */
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offset += 2;
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/* display the Confirmation Code */
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proto_tree_add_item(dsx_rvd_tree, hf_dsx_rvd_confirmation_code, tvb, offset, 1, ENC_BIG_ENDIAN);
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}
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}
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/* Register Wimax Mac Payload Protocol and Dissector */
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void proto_register_mac_mgmt_msg_dsx_rvd(void)
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{
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/* DSX_RVD display */
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static hf_register_info hf_dsx_rvd[] =
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{
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{
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&hf_dsx_rvd_message_type,
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{"MAC Management Message Type", "wmx.macmgtmsgtype.dsx_rvd", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}
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},
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{
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&hf_dsx_rvd_confirmation_code,
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{ "Confirmation code", "wmx.dsx_rvd.confirmation_code", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
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},
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{
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&hf_dsx_rvd_transaction_id,
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{ "Transaction ID", "wmx.dsx_rvd.transaction_id", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
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}
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};
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/* Setup protocol subtree array */
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static gint *ett[] =
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{
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&ett_mac_mgmt_msg_dsx_rvd_decoder,
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};
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proto_mac_mgmt_msg_dsx_rvd_decoder = proto_register_protocol (
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"WiMax DSX-RVD Message", /* name */
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"WiMax DSX-RVD (dsx)", /* short name */
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"wmx.dsx" /* abbrev */
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);
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proto_register_field_array(proto_mac_mgmt_msg_dsx_rvd_decoder, hf_dsx_rvd, array_length(hf_dsx_rvd));
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proto_register_subtree_array(ett, array_length(ett));
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}
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