/* msg_dcd.c * WiMax MAC Management DCD Message decoder * * Copyright (c) 2007 by Intel Corporation. * * Author: Lu Pan * * $Id$ * * Wireshark - Network traffic analyzer * By Gerald Combs * 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 /* #define DEBUG */ #include "moduleinfo.h" #include #include #include #include "wimax_tlv.h" #include "wimax_mac.h" extern gint proto_wimax; /* Delete the following variable as soon as possible */ extern gboolean include_cor2_changes; /* forward reference */ void proto_register_mac_mgmt_msg_dcd(void); void dissect_mac_mgmt_msg_dcd_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); gint proto_mac_mgmt_msg_dcd_decoder = -1; static gint ett_mac_mgmt_msg_dcd_decoder = -1; /* Setup protocol subtree array */ static gint *ett[] = { &ett_mac_mgmt_msg_dcd_decoder, }; /* fix fields */ static gint hf_dcd_message_type = -1; static gint hf_dcd_downlink_channel_id = -1; static gint hf_dcd_config_change_count = -1; static gint hf_dcd_dl_burst_profile_rsv = -1; static gint hf_dcd_dl_burst_profile_diuc = -1; static gint hf_dcd_bs_eirp = -1; static gint hf_dcd_frame_duration = -1; static gint hf_dcd_phy_type = -1; static gint hf_dcd_power_adjustment = -1; static gint hf_dcd_channel_nr = -1; static gint hf_dcd_ttg = -1; static gint hf_dcd_rtg = -1; #ifdef WIMAX_16D_2004 static gint hf_dcd_rss = -1; #endif static gint hf_dcd_channel_switch_frame_nr = -1; static gint hf_dcd_frequency = -1; static gint hf_dcd_bs_id = -1; static gint hf_dcd_frame_duration_code = -1; static gint hf_dcd_frame_nr = -1; #ifdef WIMAX_16D_2004 static gint hf_dcd_size_cqich_id = -1; #endif static gint hf_dcd_h_arq_ack_delay = -1; static gint hf_dcd_mac_version = -1; static gint hf_dcd_restart_count = -1; static gint hf_dl_burst_reserved = -1; static gint hf_dl_burst_diuc = -1; static gint hf_dcd_burst_freq = -1; static gint hf_dcd_burst_fec = -1; static gint hf_dcd_burst_diuc_exit_threshold = -1; static gint hf_dcd_burst_diuc_entry_threshold = -1; static gint hf_dcd_burst_tcs = -1; static gint hf_dcd_tlv_t_19_permutation_type_for_broadcast_regions_in_harq_zone = -1; static gint hf_dcd_tlv_t_20_maximum_retransmission = -1; static gint hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter = -1; static gint hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter_physical_cinr_measurements = -1; static gint hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter_rssi_measurements = -1; static gint hf_dcd_tlv_t_22_dl_amc_allocated_physical_bands_bitmap = -1; static gint hf_dcd_tlv_t_34_dl_region_definition = -1; static gint hf_dcd_tlv_t_34_dl_region_definition_num_region = -1; static gint hf_dcd_tlv_t_34_dl_region_definition_reserved = -1; static gint hf_dcd_tlv_t_34_dl_region_definition_symbol_offset = -1; static gint hf_dcd_eirxp = -1; static gint hf_dcd_tlv_t_34_dl_region_definition_subchannel_offset = -1; static gint hf_dcd_tlv_t_34_dl_region_definition_num_symbols = -1; static gint hf_dcd_tlv_t_34_dl_region_definition_num_subchannels = -1; static gint hf_dcd_tlv_t_50_ho_type_support = -1; static gint hf_dcd_tlv_t_50_ho_type_support_ho = -1; static gint hf_dcd_tlv_t_50_ho_type_support_mdho = -1; static gint hf_dcd_tlv_t_50_ho_type_support_fbss_ho = -1; static gint hf_dcd_tlv_t_50_ho_type_support_reserved = -1; static gint hf_dcd_tlv_t_31_h_add_threshold = -1; static gint hf_dcd_tlv_t_45_paging_interval_length = -1; static gint hf_dcd_tlv_t_32_h_delete_threshold = -1; static gint hf_dcd_tlv_t_33_asr = -1; static gint hf_dcd_tlv_t_33_asr_m = -1; static gint hf_dcd_tlv_t_33_asr_l = -1; static gint hf_dcd_tlv_t_35_paging_group_id = -1; static gint hf_dcd_tlv_t_36_tusc1_permutation_active_subchannels_bitmap = -1; static gint hf_dcd_tlv_t_37_tusc2_permutation_active_subchannels_bitmap = -1; static gint hf_dcd_tlv_t_51_hysteresis_margin = -1; static gint hf_dcd_tlv_t_52_time_to_trigger_duration = -1; static gint hf_dcd_tlv_t_60_noise_interference = -1; static gint hf_dcd_tlv_t_153_downlink_burst_profile_for_mutiple_fec_types = -1; static gint hf_dcd_tlv_t_541_type_function_action = -1; static gint hf_dcd_tlv_t_541_type = -1; static gint hf_dcd_tlv_t_541_function = -1; static gint hf_dcd_tlv_t_541_action = -1; static gint hf_dcd_tlv_t_542_trigger_value = -1; static gint hf_dcd_tlv_t_543_trigger_averaging_duration = -1; static gint hf_dcd_unknown_type = -1; static gint hf_dcd_invalid_tlv = -1; /* DCD DIUC messages (table 143) */ static const value_string diuc_msgs[] = { {0, "Downlink Burst Profile 1"}, {1, "Downlink Burst Profile 2"}, {2, "Downlink Burst Profile 3"}, {3, "Downlink Burst Profile 4"}, {4, "Downlink Burst Profile 5"}, {5, "Downlink Burst Profile 6"}, {6, "Downlink Burst Profile 7"}, {7, "Downlink Burst Profile 8"}, {8, "Downlink Burst Profile 9"}, {9, "Downlink Burst Profile 10"}, {10, "Downlink Burst Profile 11"}, {11, "Downlink Burst Profile 12"}, {12, "Downlink Burst Profile 13"}, {13, "Reserved"}, {14, "Gap"}, {15, "End of DL-MAP"}, {0, NULL} }; static const value_string vals_dcd_type[] = { {0, "CINR metric"}, {1, "RSSI metric"}, {2, "RTD metric"}, {3, "Reserved"}, {0, NULL} }; static const value_string vals_dcd_function[] = { {0, "Reserved"}, {1, "Metric of neighbor BS is greater than absolute value"}, {2, "Metric of neighbor BS is less than absolute value"}, {3, "Metric of neighbor BS is greater than serving BS metric by relative value"}, {4, "Metric of neighbor BS is less than serving BS metric by relative value"}, {5, "Metric of serving BS greater than absolute value"}, {6, "Metric of serving BS less than absolute value"}, {7, "Reserved"}, {0, NULL} }; static const value_string vals_dcd_action[] = { {0, "Reserved"}, {1, "Respond on trigger with MOB_SCN-REP after the end of each scanning interval"}, {2, "Respond on trigger with MOB_MSH-REQ"}, {3, "On trigger, MS starts neighbor BS scanning process by sending MOB_SCN-REQ"}, {4, "Reserved"}, {0, NULL} }; static const value_string vals_dcd_power_adjustmnt[] = { {0, "Preserve Peak Power"}, {1, "Preserve Mean Power"}, {0, NULL} }; static const true_false_string tfs_dcd_power_adjustment = { "Preserve Mean Power", "Preserve Peak Power" }; static const value_string vals_reg_rsp_status[] = { {0, "OK"}, {1, "Message authentication failure"}, {0, NULL} }; static const value_string vals_dcd_burst_tcs[] = { {0, "TCS disabled"}, {1, "TCS enabled"}, {0, NULL} }; static const true_false_string tfs_dcd_burst_tcs = { "TCS enabled", "TCS disabled" }; static const value_string vals_dcd_frame_duration[] = { {0, "2.5"}, {1, "4"}, {2, "5"}, {3, "8"}, {4, "10"}, {5, "12.5"}, {6, "20"}, {0, NULL} }; #ifdef WIMAX_16D_2004 static const value_string vals_dcd_size_of_cqich_id[] = { {0, "Reserved"}, {1, "3 bits"}, {2, "4 bits"}, {3, "5 bits"}, {4, "6 bits"}, {5, "7 bits"}, {6, "8 bits"}, {7, "9 bits"}, {0, NULL} }; #endif static const value_string vals_dcd_mac_version[] = { {1, "Conformance with IEEE Std 802.16-2001"}, {2, "Conformance with IEEE Std 802.16c-2002 and its predecessors"}, {3, "Conformance with IEEE Std 802.16a-2003 and its predecessors"}, {4, "Conformance with IEEE Std 802.16-2004"}, {5, "Conformance with IEEE Std 802.16-2004 and IEEE Std 802.16e-2005"}, {6, "reserved"}, {0, NULL} }; /* table 363 */ static const value_string vals_dcd_burst_fec_ofdma[] = { {0, "QPSK (CC) 1/2"}, {1, "QPSK (CC) 3/4"}, {2, "16-QAM (CC) 1/2"}, {3, "16-QAM (CC) 3/4"}, {4, "64-QAM (CC) 1/2"}, {5, "64-QAM (CC) 2/3"}, {6, "64-QAM (CC) 3/4"}, {7, "QPSK (BTC) 1/2"}, {8, "QPSK (BTC) 3/4 or 2/3"}, {9, "16-QAM (BTC) 3/5"}, {10, "16-QAM (BTC) 4/5"}, {11, "64-QAM (BTC) 2/3 or 5/8"}, {12, "64-QAM (BTC) 5/6 or 4/5"}, {13, "QPSK (CTC) 1/2"}, {14, "Reserved"}, {15, "QPSK (CTC) 3/4"}, {16, "16-QAM (CTC) 1/2"}, {17, "16-QAM (CTC) 3/4"}, {18, "64-QAM (CTC) 1/2"}, {19, "64-QAM (CTC) 2/3"}, {20, "64-QAM (CTC) 3/4"}, {21, "64-QAM (CTC) 5/6"}, {22, "QPSK (ZT CC) 1/2"}, {23, "QPSK (ZT CC) 3/4"}, {24, "16-QAM (ZT CC) 1/2"}, {25, "16-QAM (ZT CC) 3/4"}, {26, "64-QAM (ZT CC) 1/2"}, {27, "64-QAM (ZT CC) 2/3"}, {28, "64-QAM (ZT CC) 3/4"}, {29, "QPSK (LDPC) 1/2"}, {30, "QPSK (LDPC) 2/3 A code"}, {31, "16-QAM (LDPC) 3/4 A code"}, {32, "16-QAM (LDPC) 1/2"}, {33, "16-QAM (LDPC) 2/3 A code"}, {34, "16-QAM (LDPC) 3/4 A code"}, {35, "64-QAM (LDPC) 1/2"}, {36, "64-QAM (LDPC) 2/3 A code"}, {37, "64-QAM (LDPC) 3/4 A code"}, {38, "QPSK (LDPC) 2/3 B code"}, {39, "QPSK (LDPC) 3/4 B code"}, {40, "16-QAM (LDPC) 2/3 B code"}, {41, "16-QAM (LDPC) 3/4 B code"}, {42, "64-QAM (LDPC) 2/3 B code"}, {43, "64-QAM (LDPC) 3/4 B code"}, {44, "QPSK (CC with optional interleaver) 1/2"}, {45, "QPSK (CC with optional interleaver) 3/4"}, {46, "16-QAM (CC with optional interleaver) 1/2"}, {47, "16-QAM (CC optional interleaver) 3/4"}, {48, "64-QAM (CC with optional interleaver) 2/3"}, {49, "64-QAM (CC with optional interleaver) 3/4"}, {50, "QPSK (LDPC) 5/6"}, {51, "16-QAM (LDPC) 5/6"}, {52, "64-QAM (LDPC) 5/6"}, {0, NULL} }; static const value_string vals_dcd_permutation_type[] = { {0, "PUSC"}, {1, "FUSC"}, {2, "optional FUSC"}, {3, "AMC"}, {0, NULL} }; static const value_string tfs_support[] = { {0, "not supported"}, {1, "supported"}, {0, NULL} }; /* DCD display */ static hf_register_info hf[] = { { &hf_dcd_message_type, { "MAC Management Message Type", "wmx.macmgtmsgtype.dcd", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_33_asr, { "ASR (Anchor Switch Report) Slot Length (M) and Switching Period (L)", "wmx.dcd.asr", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_33_asr_l, { "ASR Switching Period (L)", "wmx.dcd.asr.l", FT_UINT8, BASE_DEC, NULL, 0x0f, "", HFILL } }, { &hf_dcd_tlv_t_33_asr_m, { "ASR Slot Length (M)", "wmx.dcd.asr.m", FT_UINT8, BASE_DEC, NULL, 0xf0, "", HFILL } }, { &hf_dcd_bs_eirp, { "BS EIRP", "wmx.dcd.bs_eirp", FT_INT16, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_bs_id, { "Base Station ID", "wmx.dcd.bs_id", FT_ETHER, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_restart_count, { "BS Restart Count", "wmx.dcd.bs_restart_count", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dl_burst_diuc, { "DIUC", "wmx.dcd.burst.diuc", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL } }, { &hf_dcd_burst_diuc_entry_threshold, { "DIUC Minimum Entry Threshold (in 0.25 dB units)", "wmx.dcd.burst.diuc_entry_threshold", FT_FLOAT, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_burst_diuc_exit_threshold, { "DIUC Mandatory Exit Threshold (in 0.25 dB units)", "wmx.dcd.burst.diuc_exit_threshold", FT_FLOAT, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_burst_fec, { "FEC Code Type", "wmx.dcd.burst.fec", FT_UINT8, BASE_DEC, VALS(vals_dcd_burst_fec_ofdma), 0x00, "", HFILL } }, { &hf_dcd_burst_freq, { "Frequency", "wmx.dcd.burst.freq", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dl_burst_reserved, { "Reserved", "wmx.dcd.burst.reserved", FT_UINT8, BASE_HEX, NULL, 0xF0, "", HFILL } }, { &hf_dcd_burst_tcs, { "TCS", "wmx.dcd.burst.tcs", FT_UINT8, BASE_DEC, VALS(vals_dcd_burst_tcs), 0x00, "", HFILL } }, { &hf_dcd_channel_nr, { "Channel Nr", "wmx.dcd.channel_nr", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_config_change_count, { "Configuration Change Count", "wmx.dcd.config_change_count", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter_physical_cinr_measurements, { "Default Averaging Parameter for Physical CINR Measurements (in multiples of 1/16)", "wmx.dcd.default_physical_cinr_meas_averaging_parameter", FT_UINT8, BASE_HEX, NULL, 0xf0, "", HFILL } }, { &hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter, { "Default RSSI and CINR Averaging Parameter", "wmx.dcd.default_rssi_and_cinr_averaging_parameter", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter_rssi_measurements, { "Default Averaging Parameter for RSSI Measurements (in multiples of 1/16)", "wmx.dcd.default_rssi_meas_averaging_parameter", FT_UINT8, BASE_HEX, NULL, 0x0f, "", HFILL } }, { &hf_dcd_tlv_t_22_dl_amc_allocated_physical_bands_bitmap, { "DL AMC Allocated Physical Bands Bitmap", "wmx.dcd.dl_amc_allocated_phy_bands_bitmap", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_dcd_dl_burst_profile_diuc, { "DIUC", "wmx.dcd.dl_burst_profile_diuc", FT_UINT8, BASE_DEC, VALS(diuc_msgs), 0x0F, "", HFILL } }, { &hf_dcd_dl_burst_profile_rsv, { "Reserved", "wmx.dcd.dl_burst_profile_rsv", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL } }, { &hf_dcd_downlink_channel_id, { "Reserved", "wmx.dcd.dl_channel_id", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_153_downlink_burst_profile_for_mutiple_fec_types, { "Downlink Burst Profile for Multiple FEC Types","wimax.dcd.dl_burst_profile_multiple_fec_types", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition, { "DL Region Definition", "wmx.dcd.dl_region_definition", FT_BYTES, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition_num_region, { "Number of Regions", "wmx.dcd.dl_region_definition.num_region", FT_UINT8, BASE_DEC, NULL, 0xFC, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition_num_subchannels, { "Number of Subchannels", "wmx.dcd.dl_region_definition.num_subchannels", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition_num_symbols, { "Number of OFDMA Symbols", "wmx.dcd.dl_region_definition.num_symbols", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition_reserved, { "Reserved", "wmx.dcd.dl_region_definition.reserved", FT_UINT8, BASE_DEC, NULL, 0x03, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition_subchannel_offset, { "Subchannel Offset", "wmx.dcd.dl_region_definition.subchannel_offset", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_34_dl_region_definition_symbol_offset, { "OFDMA Symbol Offset", "wmx.dcd.dl_region_definition.symbol_offset", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, #ifndef WIMAX_16D_2004 { &hf_dcd_eirxp, { "EIRXP (IR, max)", "wmx.dcd.eirxp", FT_INT16, BASE_DEC, NULL, 0x00, "", HFILL } }, #endif { &hf_dcd_frame_duration, { "Frame Duration", "wmx.dcd.frame_duration", FT_UINT32, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_frame_duration_code, { "Frame Duration Code", "wmx.dcd.frame_duration_code", FT_UINT8, BASE_HEX, VALS(vals_dcd_frame_duration), 0x00, "", HFILL } }, { &hf_dcd_frame_nr, { "Frame Number", "wmx.dcd.frame_nr", FT_UINT24, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_frequency, { "Downlink Center Frequency", "wmx.dcd.frequency", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_31_h_add_threshold, { "H_add Threshold", "wmx.dcd.h_add_threshold", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, #ifdef WIMAX_16D_2004 { &hf_dcd_h_arq_ack_delay, { "H-ARQ ACK Delay for DL Burst", "wmx.dcd.h_arq_ack_delay_dl_burst", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } }, #else { &hf_dcd_h_arq_ack_delay, { "H-ARQ ACK Delay for UL Burst", "wmx.dcd.h_arq_ack_delay_ul_burst", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } }, #endif { &hf_dcd_tlv_t_32_h_delete_threshold, { "H_delete Threshold", "wmx.dcd.h_delete_threshold", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_50_ho_type_support, { "HO Type Support", "wmx.dcd.ho_type_support", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_50_ho_type_support_fbss_ho, { "FBSS HO", "wmx.dcd.ho_type_support.fbss_ho", FT_UINT8, BASE_HEX, VALS(tfs_support), 0x20, "", HFILL } }, { &hf_dcd_tlv_t_50_ho_type_support_ho, { "HO", "wmx.dcd.ho_type_support.ho", FT_UINT8, BASE_HEX, VALS(tfs_support), 0x80, "", HFILL } }, { &hf_dcd_tlv_t_50_ho_type_support_mdho, { "MDHO", "wmx.dcd.ho_type_support.mdho", FT_UINT8, BASE_HEX, VALS(tfs_support), 0x40, "", HFILL } }, { &hf_dcd_tlv_t_50_ho_type_support_reserved, { "Reserved", "wmx.dcd.ho_type_support.reserved", FT_UINT8, BASE_HEX, NULL, 0x1f, "", HFILL } }, { &hf_dcd_tlv_t_51_hysteresis_margin, { "Hysteresis Margin", "wmx.dcd.hysteresis_margin", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_invalid_tlv, { "Invalid TLV", "wmx.dcd.invalid_tlv", FT_BYTES, BASE_HEX, NULL, 0, "", HFILL } }, { &hf_dcd_mac_version, { "MAC Version", "wmx.dcd.mac_version", FT_UINT8, BASE_DEC, VALS(vals_dcd_mac_version), 0x00, "", HFILL } }, { &hf_dcd_tlv_t_20_maximum_retransmission, { "Maximum Retransmission", "wmx.dcd.maximum_retransmission", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_60_noise_interference, { "Noise and Interference", "wmx.dcd.noise_interference", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_35_paging_group_id, { "Paging Group ID", "wmx.dcd.paging_group_id", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_36_tusc1_permutation_active_subchannels_bitmap, { "TUSC1 permutation active subchannels bitmap", "wmx.dcd.tusc1", FT_UINT16, BASE_HEX, NULL, 0xFF80, "", HFILL } }, { &hf_dcd_tlv_t_37_tusc2_permutation_active_subchannels_bitmap, { "TUSC2 permutation active subchannels bitmap", "wmx.dcd.tusc2", FT_UINT16, BASE_HEX, NULL, 0xFFF8, "", HFILL } }, { &hf_dcd_tlv_t_45_paging_interval_length, { "Paging Interval Length", "wmx.dcd.paging_interval_length", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_19_permutation_type_for_broadcast_regions_in_harq_zone, { "Permutation Type for Broadcast Region in HARQ Zone", "wmx.dcd.permutation_type_broadcast_region_in_harq_zone", FT_UINT8, BASE_DEC, VALS(vals_dcd_permutation_type), 0x00, "", HFILL } }, { &hf_dcd_phy_type, { "PHY Type", "wmx.dcd.phy_type", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_power_adjustment, { "Power Adjustment Rule", "wmx.dcd.power_adjustment", FT_UINT8, BASE_HEX, VALS(vals_dcd_power_adjustmnt), 0x00, "", HFILL } }, #ifdef WIMAX_16D_2004 { &hf_dcd_rss, { "RSS (IR, max)", "wmx.dcd.rss", FT_INT16, BASE_DEC, NULL, 0x00, "", HFILL } }, #endif { &hf_dcd_rtg, { "RTG", "wmx.dcd.rtg", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL } }, #ifdef WIMAX_16D_2004 { &hf_dcd_size_cqich_id, { "Size of CQICH-ID Field", "wmx.dcd.size_cqich_id", FT_UINT8, BASE_DEC, VALS(vals_dcd_size_of_cqich_id), 0x00, "", HFILL } }, #endif { &hf_dcd_channel_switch_frame_nr, { "Channel Switch Frame Number", "wmx.dcd.switch_frame", FT_UINT24, BASE_DEC, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_52_time_to_trigger_duration, { "Time to Trigger Duration", "wmx.dcd.time_trigger_duration", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_543_trigger_averaging_duration, { "Trigger Averaging Duration", "wmx.dcd.trigger_averaging_duration", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_542_trigger_value, { "Trigger Value", "wmx.dcd.trigger_value", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_dcd_ttg, { "TTG", "wmx.dcd.ttg", FT_UINT16, BASE_HEX, NULL, 0x00, "", HFILL } }, { &hf_dcd_tlv_t_541_type_function_action, { "Type/Function/Action", "wmx.dcd.type_function_action", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_dcd_tlv_t_541_action, { "Action", "wmx.dcd.type_function_action.action", FT_UINT8, BASE_HEX, VALS(vals_dcd_action), 0x7, "", HFILL } }, { &hf_dcd_tlv_t_541_function, { "Function", "wmx.dcd.type_function_action.function", FT_UINT8, BASE_HEX, VALS(vals_dcd_function), 0x38, "", HFILL } }, { &hf_dcd_tlv_t_541_type, { "Type", "wmx.dcd.type_function_action.type", FT_UINT8, BASE_HEX, VALS(vals_dcd_type), 0xC0, "", HFILL } }, { &hf_dcd_unknown_type, { "Unknown DCD Type", "wmx.dcd.unknown_tlv_value", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL } } }; /* Register Wimax Mac Payload Protocol and Dissector */ void proto_register_mac_mgmt_msg_dcd(void) { if (proto_mac_mgmt_msg_dcd_decoder == -1) { proto_mac_mgmt_msg_dcd_decoder = proto_register_protocol ( "WiMax DCD/UCD Messages", /* name */ "WiMax DCD/UCD (cd)", /* short name */ "wmx.cd" /* abbrev */ ); proto_register_field_array(proto_mac_mgmt_msg_dcd_decoder, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } } /* WiMax MAC Management DCD message (table 15) dissector */ void dissect_mac_mgmt_msg_dcd_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { guint offset = 0; guint tvb_len, payload_type, length; guint configChangeCount; gint tlv_type, tlv_len, tlv_offset, tlv_value_offset; guint dl_burst_diuc, dl_num_regions; proto_item *dcd_item = NULL; proto_tree *dcd_tree = NULL; proto_item *tlv_item = NULL; proto_tree *tlv_tree = NULL; proto_tree *sub_tree = NULL; tlv_info_t tlv_info; /* Ensure the right payload type */ payload_type = tvb_get_guint8(tvb, offset); if(payload_type != MAC_MGMT_MSG_DCD) { return; } if(tree) { /* we are being asked for details */ /* Get the tvb reported length */ tvb_len = tvb_reported_length(tvb); /* display MAC payload type DCD */ dcd_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tvb_len, "Downlink Channel Descriptor (DCD) (%u bytes)", tvb_len); /* add MAC DCD subtree */ dcd_tree = proto_item_add_subtree(dcd_item, ett_mac_mgmt_msg_dcd_decoder); /* Decode and display the Downlink Channel Descriptor (DCD) */ /* display the Message Type */ proto_tree_add_item(dcd_tree, hf_dcd_message_type, tvb, offset, 1, FALSE); /* set the offset for the Downlink Channel ID */ offset++; /* display the Downlink Channel ID */ proto_tree_add_item(dcd_tree, hf_dcd_downlink_channel_id, tvb, offset, 1, FALSE); /* set the offset for the Configuration Change Count */ offset++; /* get the Configuration Change Count */ configChangeCount = tvb_get_guint8(tvb, offset); /* display the Configuration Change Count */ proto_tree_add_item(dcd_tree, hf_dcd_config_change_count, tvb, offset, 1, FALSE); /* set the offset for the TLV Encoded info */ offset++; /* process the DCD TLV Encoded information (table 358) */ while(offset < tvb_len) { /* get the TLV information */ init_tlv_info(&tlv_info, tvb, offset); /* get the TLV type */ tlv_type = get_tlv_type(&tlv_info); /* get the TLV length */ tlv_len = get_tlv_length(&tlv_info); if(tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1) { /* invalid tlv info */ if(pinfo->cinfo) { col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "DCD TLV error"); } proto_tree_add_item(dcd_tree, hf_dcd_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE); break; } /* get the TLV value offset */ tlv_value_offset = get_tlv_value_offset(&tlv_info); #ifdef DEBUG /* for debug only */ tlv_item = proto_tree_add_protocol_format(dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, (tlv_len + tlv_value_offset), "DCD Type: %u (%u bytes, offset=%u, tvb_len=%u)", tlv_type, tlv_len, offset, tvb_len); #endif /* update the offset */ offset += tlv_value_offset; /* process DCD TLVs */ switch (tlv_type) { case DCD_DOWNLINK_BURST_PROFILE: { /* Downlink Burst Profile TLV (table 363)*/ /* get the DIUC */ dl_burst_diuc = (tvb_get_guint8(tvb, offset) & 0x0F); /* display TLV info */ /* add TLV subtree */ tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "Downlink_Burst_Profile (DIUC=%u) (%u bytes)", (dl_burst_diuc+1), tlv_len); /* detail display */ proto_tree_add_item(tlv_tree, hf_dcd_dl_burst_profile_rsv, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_dl_burst_profile_diuc, tvb, offset, 1, FALSE); /* process subTLVs */ for (tlv_offset = 1; tlv_offset < tlv_len; ) { /* get the TLV information */ init_tlv_info(&tlv_info, tvb, (offset+tlv_offset)); /* get the TLV type */ tlv_type = get_tlv_type(&tlv_info); /* get the TLV length */ length = get_tlv_length(&tlv_info); if(tlv_type == -1 || length > MAX_TLV_LEN || length < 1) { /* invalid tlv info */ if(pinfo->cinfo) { col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "DL Burst Profile TLV error"); } proto_tree_add_item(tlv_tree, hf_dcd_invalid_tlv, tvb, offset, (tlv_len - offset - tlv_offset), FALSE); break; } /* update the offset */ tlv_offset += get_tlv_value_offset(&tlv_info); switch (tlv_type) { case DCD_BURST_FREQUENCY: { sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_freq, tvb, (offset+tlv_offset), 1, FALSE); tlv_item = proto_tree_add_item(sub_tree, hf_dcd_burst_freq, tvb, (offset+tlv_offset), 1, FALSE); proto_item_append_text(tlv_item, " kHz"); break; } case DCD_BURST_FEC_CODE_TYPE: { sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_fec, tvb, (offset+tlv_offset), 1, FALSE); proto_tree_add_item(sub_tree, hf_dcd_burst_fec, tvb, (offset+tlv_offset), 1, FALSE); break; } case DCD_BURST_DIUC_EXIT_THRESHOLD: { sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_diuc_exit_threshold, tvb, (offset+tlv_offset), length, FALSE); tlv_item = proto_tree_add_item(sub_tree, hf_dcd_burst_diuc_exit_threshold, tvb, (offset+tlv_offset), length, FALSE); break; } case DCD_BURST_DIUC_ENTRY_THRESHOLD: { sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_diuc_entry_threshold, tvb, (offset+tlv_offset), length, FALSE); tlv_item = proto_tree_add_item(sub_tree, hf_dcd_burst_diuc_entry_threshold, tvb, (offset+tlv_offset), length, FALSE); break; } case DCD_BURST_TCS_ENABLE: { sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_tcs, tvb, (offset+tlv_offset), length, FALSE); proto_tree_add_item(sub_tree, hf_dcd_burst_tcs, tvb, (offset+tlv_offset), 1, FALSE); break; } default: /* ??? */ break; } tlv_offset += length; } break; } case DCD_BS_EIRP: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_bs_eirp, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_bs_eirp, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " dBm"); break; } case DCD_FRAME_DURATION: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_frame_duration, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_frame_duration, tvb, offset, tlv_len, FALSE); break; } case DCD_PHY_TYPE: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_phy_type, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_phy_type, tvb, offset, tlv_len, FALSE); break; } case DCD_POWER_ADJUSTMENT: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_power_adjustment, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_power_adjustment, tvb, offset, 1, FALSE); break; } case DCD_CHANNEL_NR: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_channel_nr, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_channel_nr, tvb, offset, tlv_len, FALSE); break; } case DCD_TTG: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_ttg, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_ttg, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " PS"); break; } case DCD_RTG: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_rtg, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_rtg, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " PS"); break; } #ifdef WIMAX_16D_2004 case DCD_RSS: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_rss, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_rss, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " dBm"); break; } #else case DCD_EIRXP: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_eirxp, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_eirxp, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " dBm"); break; } #endif case DCD_CHANNEL_SWITCH_FRAME_NR: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_channel_switch_frame_nr, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_channel_switch_frame_nr, tvb, offset, tlv_len, FALSE); break; } case DCD_FREQUENCY: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_frequency, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_frequency, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " kHz"); break; } case DCD_BS_ID: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_bs_id, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_bs_id, tvb, offset, tlv_len, FALSE); break; } case DCD_FRAME_DURATION_CODE: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_frame_duration_code, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_frame_duration_code, tvb, offset, tlv_len, FALSE); break; } case DCD_FRAME_NR: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_frame_nr, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_frame_nr, tvb, offset, tlv_len, FALSE); break; } #ifdef WIMAX_16D_2004 case DCD_SIZE_CQICH_ID: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_size_cqich_id, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_size_cqich_id, tvb, offset, tlv_len, FALSE); break; } #endif case DCD_H_ARQ_ACK_DELAY: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_h_arq_ack_delay, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_h_arq_ack_delay, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " frame offset"); break; } case DCD_MAC_VERSION: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_mac_version, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_mac_version, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_19_PERMUTATION_TYPE_FOR_BROADCAST_REGION_IN_HARQ_ZONE: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_19_permutation_type_for_broadcast_regions_in_harq_zone, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_19_permutation_type_for_broadcast_regions_in_harq_zone, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_20_MAXIMUM_RETRANSMISSION: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_20_maximum_retransmission, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_20_maximum_retransmission, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_21_DEFAULT_RSSI_AND_CINR_AVERAGING_PARAMETER: { tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, 1, "Default RSSI and CINR averaging parameter (%u byte(s))", tlv_len); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter_physical_cinr_measurements, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_21_default_rssi_and_cinr_averaging_parameter_rssi_measurements, tvb, offset, 1, FALSE); break; } case DCD_TLV_T_22_DL_AMC_ALLOCATED_PHYSICAL_BANDS_BITMAP: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_22_dl_amc_allocated_physical_bands_bitmap, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_22_dl_amc_allocated_physical_bands_bitmap, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_34_DL_REGION_DEFINITION: { tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "DL region definition (%u byte(s))", tlv_len); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition, tvb, offset, tlv_len, FALSE); dl_num_regions = tvb_get_guint8(tvb, offset); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition_num_region, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition_reserved, tvb, offset, 1, FALSE); tlv_offset = offset; for(length = 0; length < dl_num_regions; length++) { proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition_symbol_offset, tvb, tlv_offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition_subchannel_offset, tvb, (tlv_offset+1), 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition_num_symbols, tvb, (tlv_offset+2), 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_34_dl_region_definition_num_subchannels, tvb, (tlv_offset+3), 1, FALSE); tlv_offset += 4; } break; } case DCD_TLV_T_50_HO_TYPE_SUPPORT: { tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "HO type support (%u byte(s))", tlv_len); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_50_ho_type_support, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_50_ho_type_support_ho, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_50_ho_type_support_mdho, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_50_ho_type_support_fbss_ho, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_50_ho_type_support_reserved, tvb, offset, 1, FALSE); break; } case DCD_TLV_T_31_H_ADD_THRESHOLD: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_31_h_add_threshold, tvb, offset, 1, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_31_h_add_threshold, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " dB"); break; } case DCD_TLV_T_32_H_DELETE_THRESHOLD: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_32_h_delete_threshold, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_32_h_delete_threshold, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " dB"); break; } case DCD_TLV_T_33_ASR: { tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "ASR Slot Length (M) and Switching Period (L) (%u byte(s))", tlv_len); proto_tree_add_item(dcd_tree, hf_dcd_tlv_t_33_asr, tvb, offset, 1, FALSE); tlv_item = proto_tree_add_item(dcd_tree, hf_dcd_tlv_t_33_asr_m, tvb, offset, 1, FALSE); proto_item_append_text(tlv_item, " frames"); tlv_item = proto_tree_add_item(dcd_tree, hf_dcd_tlv_t_33_asr_l, tvb, offset, 1, FALSE); proto_item_append_text(tlv_item, " frames"); break; } case DCD_TLV_T_35_PAGING_GROUP_ID: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_35_paging_group_id, tvb, offset, 1, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_35_paging_group_id, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_36_TUSC1_PERMUTATION_ACTIVE_SUBCHANNELS_BITMAP: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_36_tusc1_permutation_active_subchannels_bitmap, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_36_tusc1_permutation_active_subchannels_bitmap, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_37_TUSC2_PERMUTATION_ACTIVE_SUBCHANNELS_BITMAP: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_37_tusc2_permutation_active_subchannels_bitmap, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_37_tusc2_permutation_active_subchannels_bitmap, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_51_HYSTERSIS_MARGIN: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_51_hysteresis_margin, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_51_hysteresis_margin, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " dB"); break; } case DCD_TLV_T_52_TIME_TO_TRIGGER_DURATION: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_52_time_to_trigger_duration, tvb, offset, tlv_len, FALSE); tlv_item = proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_52_time_to_trigger_duration, tvb, offset, tlv_len, FALSE); proto_item_append_text(tlv_item, " ms"); break; } case DCD_TLV_T_54_TRIGGER: { /* Trigger TLV (table 358a & 358b) */ /* add TLV subtree */ tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "DCD Trigger (%u bytes)", tlv_len); for (tlv_offset = 0; tlv_offset < tlv_len; ) { /* get the TLV information */ init_tlv_info(&tlv_info, tvb, (offset + tlv_offset)); /* get the TLV type */ tlv_type = get_tlv_type(&tlv_info); /* get the TLV length */ length = get_tlv_length(&tlv_info); if(tlv_type == -1 || length > MAX_TLV_LEN || length < 1) { /* invalid tlv info */ if(pinfo->cinfo) { col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Trigger TLV error"); } proto_tree_add_item(tlv_tree, hf_dcd_invalid_tlv, tvb, offset, (tlv_len - offset - tlv_offset), FALSE); break; } /* update the offset */ tlv_offset += get_tlv_value_offset(&tlv_info); /* table 358a */ switch (tlv_type) { case DCD_TLV_T_541_TYPE_FUNCTION_ACTION: { /* table 358b */ sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, (offset + tlv_offset), length, "Trigger; Type/function/action description (%u byte(s))", tlv_len); proto_tree_add_item(sub_tree, hf_dcd_tlv_t_541_type, tvb, (offset + tlv_offset), 1, FALSE); proto_tree_add_item(sub_tree, hf_dcd_tlv_t_541_function, tvb, (offset + tlv_offset), 1, FALSE); proto_tree_add_item(sub_tree, hf_dcd_tlv_t_541_action, tvb, (offset + tlv_offset), 1, FALSE); } break; case DCD_TLV_T542_TRIGGER_VALUE: sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_tlv_t_542_trigger_value, tvb, (offset + tlv_offset), length, FALSE); proto_tree_add_item(sub_tree, hf_dcd_tlv_t_542_trigger_value, tvb, (offset + tlv_offset), length, FALSE); break; case DCD_TLV_T_543_TRIGGER_AVERAGING_DURATION: sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_tlv_t_543_trigger_averaging_duration, tvb, (offset + tlv_offset), length, FALSE); proto_tree_add_item(sub_tree, hf_dcd_tlv_t_543_trigger_averaging_duration, tvb, (offset + tlv_offset), length, FALSE); break; } tlv_offset += length; } break; } case DCD_TLV_T_60_NOISE_AND_INTERFERENCE: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_60_noise_interference, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_60_noise_interference, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_153_DOWNLINK_BURST_PROFILE_FOR_MULTIPLE_FEC_TYPES: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_153_downlink_burst_profile_for_mutiple_fec_types, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_153_downlink_burst_profile_for_mutiple_fec_types, tvb, offset, tlv_len, FALSE); break; } case DCD_RESTART_COUNT: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_restart_count, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_restart_count, tvb, offset, tlv_len, FALSE); break; } case DCD_TLV_T_45_PAGING_INTERVAL_LENGTH: { if (include_cor2_changes) { tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "Reserved (%u byte(s))", tlv_len); proto_tree_add_text(tlv_tree, tvb, offset, tlv_len, "Reserved"); } else { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_tlv_t_45_paging_interval_length, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_tlv_t_45_paging_interval_length, tvb, offset, tlv_len, FALSE); } break; } default: { tlv_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, hf_dcd_unknown_type, tvb, offset, tlv_len, FALSE); proto_tree_add_item(tlv_tree, hf_dcd_unknown_type, tvb, offset, tlv_len, FALSE); break; } } offset += tlv_len; } /* end of TLV process while loop */ } }