372 lines
12 KiB
C
372 lines
12 KiB
C
/* msg_aas_beam.c
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* WiMax MAC Management AAS-BEAM-SELECT/REQ/RSP Messages decoders
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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
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#define OFDM /* disable it if not supporting OFDM */
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/* Include files */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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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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extern gint proto_mac_mgmt_msg_aas_fbck_decoder;
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#define AAS_BEAM_SELECT_AAS_BEAM_INDEX_MASK 0xFC
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#define AAS_BEAM_SELECT_RESERVED_MASK 0x03
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#define AAS_BEAM_FEEDBACK_REQUEST_NUMBER_MASK 0xE0
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#define AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK 0x18
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#define AAS_BEAM_RESOLUTION_PARAMETER_MASK 0x07
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#define AAS_BEAM_BEAM_BIT_MASK_MASK 0xF0
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#define AAS_BEAM_RESERVED_MASK 0x0F
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/* forward reference */
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void proto_register_mac_mgmt_msg_aas_beam(void);
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void dissect_mac_mgmt_msg_aas_beam_select_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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#ifdef OFDM
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static void dissect_mac_mgmt_msg_aas_beam_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_mac_mgmt_msg_aas_beam_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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#endif
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static gint proto_mac_mgmt_msg_aas_beam_decoder = -1;
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static gint ett_mac_mgmt_msg_aas_beam_select_decoder = -1;
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static gint ett_mac_mgmt_msg_aas_beam_req_decoder = -1;
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static gint ett_mac_mgmt_msg_aas_beam_rsp_decoder = -1;
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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_aas_beam_select_decoder,
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&ett_mac_mgmt_msg_aas_beam_req_decoder,
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&ett_mac_mgmt_msg_aas_beam_rsp_decoder,
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};
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#ifdef OFDM
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static const value_string vals_report_types[] =
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{
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{0, "BEAM_REP_IE"},
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{0, NULL}
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};
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static const value_string vals_resolution_parameter[] =
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{
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{0, "report every 4th subcarrier"},
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{1, "report every 8th subcarrier"},
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{2, "report every 16th subcarrier"},
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{3, "report every 32nd subcarrier"},
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{4, "report every 64th subcarrier"},
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{0, NULL}
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};
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#endif
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/* fix fields */
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static gint hf_aas_beam_message_type = -1;
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static gint hf_aas_beam_unknown_type = -1;
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static gint hf_aas_beam_select_index = -1;
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static gint hf_aas_beam_select_reserved = -1;
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#ifdef OFDM
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static gint hf_aas_beam_frame_number = -1;
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static gint hf_aas_beam_feedback_request_number = -1;
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static gint hf_aas_beam_measurement_report_type = -1;
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static gint hf_aas_beam_resolution_parameter = -1;
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static gint hf_aas_beam_beam_bit_mask = -1;
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static int hf_aas_beam_freq_value_re = -1;
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static int hf_aas_beam_freq_value_im = -1;
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static int hf_aas_beam_rssi_value = -1;
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static int hf_aas_beam_cinr_value = -1;
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#endif
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/* AAS-BEAM display */
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static hf_register_info hf_aas_beam[] =
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{
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{
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&hf_aas_beam_message_type,
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{
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"MAC Management Message Type", "wmx.macmgtmsgtype.aas_beam",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_aas_beam_select_index,
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{
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"AAS Beam Index", "wmx.aas_beam.aas_beam_index",
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FT_UINT8, BASE_DEC, NULL, AAS_BEAM_SELECT_AAS_BEAM_INDEX_MASK, "", HFILL
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}
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},
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{
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&hf_aas_beam_beam_bit_mask,
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{
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"Beam Bit Mask", "wmx.aas_beam.beam_bit_mask",
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FT_UINT8, BASE_HEX, NULL, AAS_BEAM_BEAM_BIT_MASK_MASK, "", HFILL
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}
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},
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#ifdef OFDM
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{
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&hf_aas_beam_cinr_value,
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{
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"CINR Mean Value", "wmx.aas_beam.cinr_mean_value",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_aas_beam_feedback_request_number,
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{
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"Feedback Request Number", "wmx.aas_beam.feedback_request_number",
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FT_UINT8, BASE_DEC, NULL, AAS_BEAM_FEEDBACK_REQUEST_NUMBER_MASK, "", HFILL
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}
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},
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{
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&hf_aas_beam_frame_number,
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{
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"Frame Number", "wmx.aas_beam.frame_number",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_aas_beam_freq_value_im,
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{
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"Frequency Value (imaginary part)", "wmx.aas_beam.freq_value_im",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_aas_beam_freq_value_re,
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{
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"Frequency Value (real part)", "wmx.aas_beam.freq_value_re",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_aas_beam_measurement_report_type,
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{
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"Measurement Report Type", "wmx.aas_beam.measurement_report_type",
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FT_UINT8, BASE_DEC, VALS(vals_report_types), AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK, "", HFILL
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}
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},
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{
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&hf_aas_beam_select_reserved,
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{
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"Reserved", "wmx.aas_beam.reserved",
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FT_UINT8, BASE_HEX, NULL, AAS_BEAM_SELECT_RESERVED_MASK, "", HFILL
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}
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},
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{
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&hf_aas_beam_resolution_parameter,
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{
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"Resolution Parameter", "wmx.aas_beam.resolution_parameter",
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FT_UINT8, BASE_DEC, VALS(vals_resolution_parameter), AAS_BEAM_RESOLUTION_PARAMETER_MASK, "", HFILL
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}
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},
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{
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&hf_aas_beam_rssi_value,
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{
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"RSSI Mean Value", "wmx.aas_beam.rssi_mean_value",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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#endif
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{
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&hf_aas_beam_unknown_type,
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{
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"Unknown TLV type", "wmx.aas_beam.unknown_type",
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FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL
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}
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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_aas_beam(void)
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{
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if (proto_mac_mgmt_msg_aas_beam_decoder == -1)
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{
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proto_mac_mgmt_msg_aas_beam_decoder = proto_mac_mgmt_msg_aas_fbck_decoder;
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proto_register_field_array(proto_mac_mgmt_msg_aas_beam_decoder, hf_aas_beam, array_length(hf_aas_beam));
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proto_register_subtree_array(ett, array_length(ett));
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}
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register_dissector("mac_mgmt_msg_aas_beam_select_handler", dissect_mac_mgmt_msg_aas_beam_select_decoder, -1);
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#ifdef OFDM
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register_dissector("mac_mgmt_msg_aas_beam_req_handler", dissect_mac_mgmt_msg_aas_beam_req_decoder, -1);
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register_dissector("mac_mgmt_msg_aas_beam_rsp_handler", dissect_mac_mgmt_msg_aas_beam_rsp_decoder, -1);
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#endif
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}
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void dissect_mac_mgmt_msg_aas_beam_select_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 *aas_beam_item = NULL;
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proto_tree *aas_beam_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 AAS-BEAM-SELECT */
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if(payload_type != MAC_MGMT_MSG_AAS_BEAM_SELECT)
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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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aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, tvb_len, "AAS Beam Select (AAS-BEAM-SELECT) (%u bytes)", tvb_len);
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/* add subtree */
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aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_select_decoder);
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/* Display the AAS-BEAM-SELECT message type */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_message_type, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* Decode and display the AAS-BEAM-SELECT message body */
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/* display the AAS Beam Index */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_index, tvb, offset, 1, FALSE);
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/* display the reserved fields */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, FALSE);
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}
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}
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#ifdef OFDM
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static void dissect_mac_mgmt_msg_aas_beam_req_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 *aas_beam_item = NULL;
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proto_tree *aas_beam_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 AAS-BEAM-REQ */
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if(payload_type != MAC_MGMT_MSG_AAS_BEAM_REQ)
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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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aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, tvb_len, "AAS Beam Request (AAS-BEAM-REQ) (%u bytes)", tvb_len);
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/* add subtree */
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aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_req_decoder);
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/* Display the AAS-BEAM-REQ message type */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_message_type, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* Decode and display the AAS-BEAM-REQ message body */
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/* display the Frame Number */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_frame_number, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* display the Feedback Request Number */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_feedback_request_number, tvb, offset, 1, FALSE);
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/* display the Measurement Report Type */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_measurement_report_type, tvb, offset, 1, FALSE);
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/* display the Resolution Parameter */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_resolution_parameter, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* display the Beam Bit mask */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_beam_bit_mask, tvb, offset, 1, FALSE);
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/* display the reserved fields */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, FALSE);
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}
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}
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static void dissect_mac_mgmt_msg_aas_beam_rsp_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, report_type;
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guint number_of_frequencies, index;
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proto_item *aas_beam_item = NULL;
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proto_tree *aas_beam_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 AAS-BEAM-RSP */
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if(payload_type != MAC_MGMT_MSG_AAS_BEAM_RSP)
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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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aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, tvb_len, "AAS Beam Response (AAS-BEAM-RSP) (%u bytes)", tvb_len);
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/* add subtree */
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aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_req_decoder);
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/* Display the AAS-BEAM-RSP message type */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_message_type, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* Decode and display the AAS-BEAM-RSP message body */
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/* display the Frame Number */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_frame_number, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* get the Measurement Report Type */
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report_type = tvb_get_guint8(tvb, offset);
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/* display the Feedback Request Number */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_feedback_request_number, tvb, offset, 1, FALSE);
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/* display the Measurement Report Type */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_measurement_report_type, tvb, offset, 1, FALSE);
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/* display the Resolution Parameter */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_resolution_parameter, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* display the Beam Bit mask */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_beam_bit_mask, tvb, offset, 1, FALSE);
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/* display the reserved fields */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* check the Measurement Report Type */
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if((report_type & AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK) == 0)
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{
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/* calculate the total number of frequencies */
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number_of_frequencies = (tvb_len - offset) / 2 - 1;
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/* display the frequency */
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for(index = 0; index < number_of_frequencies; index++)
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{ /* display the Frequency Value (real part) */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_freq_value_re, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* display the Frequency Value (imaginary part) */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_freq_value_im, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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}
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}
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/* display the RSSI Mean Value */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_rssi_value, tvb, offset, 1, FALSE);
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/* move to next field */
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offset++;
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/* display the CINR Mean Value */
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proto_tree_add_item(aas_beam_tree, hf_aas_beam_cinr_value, tvb, offset, 1, FALSE);
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}
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}
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#endif
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