/* UCD dissector */ static void dissect_mac_mgmt_msg_ucd_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { guint offset = 0; guint tvb_len, length; gint tlv_type, tlv_len, tlv_offset, tlv_value_offset; tlv_info_t tlv_info; gchar* proto_str; { /* we are being asked for details */ proto_item *ucd_item; proto_tree *ucd_tree; guint ucd_ranging_backoff_start; guint ucd_ranging_backoff_end; guint ucd_request_backoff_start; guint ucd_request_backoff_end; tvb_len = tvb_reported_length(tvb); /* display MAC payload type UCD */ ucd_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_ucd_decoder, tvb, offset, -1, "Uplink Channel Descriptor (UCD)"); ucd_tree = proto_item_add_subtree(ucd_item, ett_mac_mgmt_msg_ucd_decoder); /* Decode and display the Uplink Channel Descriptor (UCD) */ /* display the Configuration Change Count */ proto_tree_add_item(ucd_tree, hf_ucd_config_change_count, tvb, offset, 1, ENC_NA); offset++; /* get the ranging backoff start */ ucd_ranging_backoff_start = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(ucd_tree, hf_ucd_ranging_backoff_start, tvb, offset, 1, (1 << ucd_ranging_backoff_start), "2^%u = %u", ucd_ranging_backoff_start, (1 << ucd_ranging_backoff_start)); offset++; /* get the ranging backoff end */ ucd_ranging_backoff_end = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(ucd_tree, hf_ucd_ranging_backoff_end, tvb, offset, 1, (1 << ucd_ranging_backoff_end), "2^%u = %u", ucd_ranging_backoff_end, (1 << ucd_ranging_backoff_end)); offset++; /* get the request backoff start */ ucd_request_backoff_start = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(ucd_tree, hf_ucd_request_backoff_start, tvb, offset, 1, (1 << ucd_request_backoff_start), "2^%u = %u", ucd_request_backoff_start, (1 << ucd_request_backoff_start)); offset++; /* get the request backoff end */ ucd_request_backoff_end = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(ucd_tree, hf_ucd_request_backoff_end, tvb, offset, 1, (1 << ucd_request_backoff_end), "2^%u = %u", ucd_request_backoff_end, (1 << ucd_request_backoff_end)); offset++; 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 */ col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "UCD TLV error"); proto_tree_add_item(ucd_tree,hf_ucd_invalid_tlv, tvb, offset, (tvb_len - offset), ENC_NA); break; } /* get the TLV value offset */ tlv_value_offset = get_tlv_value_offset(&tlv_info); #ifdef DEBUG /* for debug only */ proto_tree_add_protocol_format(ucd_tree, proto_mac_mgmt_msg_ucd_decoder, tvb, offset, (tlv_len + tlv_value_offset), "UCD 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 UCD TLV Encoded information */ if (include_cor2_changes) { switch (tlv_type) { case UCD_TLV_T_203_UL_PUSC_SUBCHANNEL_ROTATION: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_203_ul_pusc_subchannel_rotation, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_205_RELATIVE_POWER_OFFSET_UL_HARQ_BURST: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_205_relative_power_offset_ul_harq_burst, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_206_RELATIVE_POWER_OFFSET_UL_BURST_CONTAINING_MAC_MGMT_MSG: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_206_relative_power_offset_ul_burst_containing_mac_mgmt_msg, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_207_UL_INITIAL_TRANSMIT_TIMING: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_207_ul_initial_transmit_timing, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_210_FAST_FEEDBACK_REGION: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_210_fast_feedback_region, tvb, offset-tlv_value_offset, ENC_NA); break; } case UCD_TLV_T_211_HARQ_ACK_REGION: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_211_harq_ack_region, tvb, offset-tlv_value_offset, ENC_NA); break; } case UCD_TLV_T_212_RANGING_REGION: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_212_ranging_region, tvb, offset-tlv_value_offset, ENC_NA); break; } case UCD_TLV_T_213_SOUNDING_REGION: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_213_sounding_region, tvb, offset-tlv_value_offset, ENC_NA); break; } } } switch (tlv_type) { proto_tree *tlv_tree; proto_item *tlv_item1; guint ul_burst_uiuc; guint utemp; case UCD_UPLINK_BURST_PROFILE: { /* get the UIUC */ ul_burst_uiuc = tvb_get_guint8(tvb, offset) & 0x0F; /* add TLV subtree */ proto_str = wmem_strdup_printf(wmem_packet_scope(), "Uplink Burst Profile (UIUC = %u)", ul_burst_uiuc); tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_ucd_decoder, ucd_tree, proto_mac_mgmt_msg_ucd_decoder, tvb, offset-tlv_value_offset, tlv_len, proto_str); proto_tree_add_item(tlv_tree, hf_ucd_ul_burst_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_ul_burst_uiuc, tvb, offset, 1, ENC_BIG_ENDIAN); 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); if(tlv_type == -1) { /* invalid tlv info */ col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "UL Burst Profile error"); proto_tree_add_item(tlv_tree, hf_ucd_invalid_tlv, tvb, offset, (tlv_len - offset - tlv_offset), ENC_NA); break; } /* get the TLV length */ length = get_tlv_length(&tlv_info); switch (tlv_type) { proto_item *tlv_item2; case UCD_BURST_FEC: { add_tlv_subtree(&tlv_info, tlv_tree, hf_ucd_burst_fec, tvb, (offset+tlv_offset), ENC_BIG_ENDIAN); break; } case UCD_BURST_RANGING_DATA_RATIO: { tlv_item2 = add_tlv_subtree(&tlv_info, tlv_tree, hf_ucd_burst_ranging_data_ratio, tvb, (offset+tlv_offset), ENC_BIG_ENDIAN); proto_item_append_text(tlv_item2, " dB"); break; } #if 0 /* for OFDM */ case UCD_BURST_POWER_BOOST: { tlv_item2 = add_tlv_subtree(&tlv_info, tlv_tree, hf_ucd_burst_power_boost, tvb, (offset+tlv_offset), ENC_BIG_ENDIAN); proto_item_append_text(tlv_item2, " dB"); break; } case UCD_BURST_TCS_ENABLE: { add_tlv_subtree(&tlv_info, tlv_tree, hf_ucd_burst_tcs_enable, tvb, (offset+tlv_offset), 1, ENC_BIG_ENDIAN); break; } #endif default: /* ??? */ break; } tlv_offset += (length+get_tlv_value_offset(&tlv_info)); } break; } case UCD_RESERVATION_TIMEOUT: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_res_timeout, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_BW_REQ_SIZE: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_bw_req_size, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " PS"); break; } case UCD_RANGING_REQ_SIZE: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_ranging_req_size, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " PS"); break; } case UCD_FREQUENCY: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_freq, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " kHz"); break; } case UCD_TLV_T_7_HO_RANGING_START: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_ho_ranging_start, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_ho_ranging_start, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_TLV_T_8_RANGING_HO_END: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_ho_ranging_end, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_ho_ranging_end, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_TLV_T_158_OPTIONAL_PERMUTATION_UL_ALLOCATED_SUBCHANNELS_BITMAP: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_158_optional_permutation_ul_allocated_subchannels_bitmap, tvb, offset-tlv_value_offset, ENC_NA); break; } case UCD_TLV_T_159_BAND_AMC_ALLOCATION_THRESHHOLD: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_159_band_amc_allocation_threshold, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " dB"); break; } case UCD_TLV_T_160_BAND_AMC_RELEASE_THRESHOLD: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_160_band_amc_release_threshold, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " dB"); break; } case UCD_TLV_T_161_BAND_AMC_ALLOCATION_TIMER: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_161_band_amc_allocation_timer, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames"); break; } case UCD_TLV_T_162_BAND_AMC_RELEASE_TIMER: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_161_band_amc_allocation_timer, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames"); break; } case UCD_TLV_T_163_BAND_STATUS_REPORT_MAX_PERIOD: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_163_band_status_report_max_period, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames"); break; } case UCD_TLV_T_164_BAND_AMC_RETRY_TIMER: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_164_band_amc_retry_timer, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames"); break; } case UCD_TLV_T_170_SAFETY_CHANNEL_RETRY_TIMER: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_170_safety_channel_retry_timer, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames"); break; } case UCD_TLV_T_171_HARQ_ACK_DELAY_FOR_DL_BURST: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_171_harq_ack_delay_dl_burst, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames offset"); break; } case UCD_TLV_T_172_CQICH_BAND_AMC_TRANSITION_DELAY: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_172_cqich_band_amc_transition_delay, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item1, " frames"); break; } case UCD_TLV_T_174_MAXIMUM_RETRANSMISSION: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_174_maximum_retransmission, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_176_SIZE_OF_CQICH_ID_FIELD: { utemp = tvb_get_guint8(tvb, offset); cqich_id_size = 0; /* Default is 0 */ if (utemp && utemp < 8) { /* Set for CQICH_Alloc_IE */ cqich_id_size = utemp + 2; } add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_176_size_of_cqich_id_field, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_177_NORMALIZED_CN_OVERRIDE_2: { /* add TLV subtree */ tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_177_normalized_cn_override2, tvb, offset-tlv_value_offset, ENC_NA|ENC_ASCII); tlv_tree = proto_item_add_subtree(tlv_item1, ett_mac_mgmt_msg_ucd_decoder); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_177_normalized_cn_override2_first_line, tvb, offset + 2, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_177_normalized_cn_override2_list, tvb, offset + 3, 7, ENC_ASCII|ENC_NA); break; } case UCD_TLV_T_186_UPPER_BOUND__AAS_PREAMBLE: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_186_upper_bound_aas_preamble, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_187_LOWER_BOUND_AAS_PREAMBLE: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_187_lower_bound_aas_preamble, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_188_ALLOW_AAS_BEAM_SELECT_MESSAGE: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_188_allow_aas_beam_select_message, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_189_USE_CQICH_INDICATION_FLAG: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_189_use_cqich_indication_flag, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_190_MS_SPECIFIC_UP_POWER_OFFSET_ADJUSTMENT_STEP: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_190_ms_specific_up_power_addjustment_step, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_191_MS_SPECIFIC_DOWN_POWER_OFSET_ADJUSTMENT_STEP: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_191_ms_specific_down_power_addjustment_step, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_192_MIN_LEVEL_POWER_OFFSET_ADJUSTMENT: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_192_min_level_power_offset_adjustment, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_193_MAX_LEVEL_POWER_OFFSETR_ADJUSTMENT: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_193_max_level_power_offset_adjustment, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_194_HANDOVER_RANGING_CODES: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_194_handover_ranging_codes, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_195_INITIAL_RANGING_INTERVAL: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_195_initial_ranging_interval, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_196_TX_POWER_REPORT: { tlv_item1 = add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_196_tx_power_report, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); tlv_tree = proto_item_add_subtree(tlv_item1, ett_mac_mgmt_msg_ucd_decoder); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_196_tx_power_report_threshold, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_196_tx_power_report_interval, tvb , offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_196_tx_power_report_a_p_avg, tvb, (offset + 1), 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_196_tx_power_report_threshold_icqch, tvb, (offset + 1), 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_196_tx_power_report_interval_icqch, tvb, (offset + 2), 1, ENC_BIG_ENDIAN); proto_tree_add_item(tlv_tree, hf_ucd_tlv_t_196_tx_power_report_a_p_avg_icqch, tvb, (offset + 2), 1, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_197_NORMALIZED_CN_FOR_CHANNEL_SOUNDING: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_195_initial_ranging_interval, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_TLV_T_198_INTIAL_RANGING_BACKOFF_START: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_initial_range_backoff_start, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_initial_range_backoff_start, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_TLV_T_199_INITIAL_RANGING_BACKOFF_END: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_initial_range_backoff_end, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_initial_range_backoff_end, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_TLV_T_200_BANDWIDTH_REQUESET_BACKOFF_START: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_bandwidth_backoff_start, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_bandwidth_backoff_start, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_TLV_T_201_BANDWIDTH_REQUEST_BACKOFF_END: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_bandwidth_backoff_end, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_bandwidth_backoff_end, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_TLV_T_202_UPLINK_BURST_PROFILE_FOR_MULTIPLE_FEC_TYPES: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_202_uplink_burst_profile_for_multiple_fec_types, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_INITIAL_RANGING_CODES: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_150_initial_ranging_codes, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_PERIODIC_RANGING_CODES: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_151_periodic_ranging_codes, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_BANDWIDTH_REQUEST_CODES: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_152_bandwidth_request_codes, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_PERIODIC_RANGING_BACKOFF_START: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_periodic_ranging_backoff_start, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_periodic_ranging_backoff_start, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_PERIODIC_RANGING_BACKOFF_END: { tlv_tree = add_tlv_subtree_no_item(&tlv_info, ucd_tree, hf_ucd_periodic_ranging_backoff_end, tvb, offset-tlv_value_offset); utemp = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format_value(tlv_tree, hf_ucd_periodic_ranging_backoff_end, tvb, offset, tvb_len, utemp, "2^%u = %u", utemp, (1 << utemp)); break; } case UCD_START_OF_RANGING_CODES_GROUP: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_155_start_of_ranging_codes_group, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_PERMUTATION_BASE: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_tlv_t_156_permutation_base, tvb, offset-tlv_value_offset, ENC_BIG_ENDIAN); break; } case UCD_UL_ALLOCATED_SUBCHANNELS_BITMAP: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_ul_allocated_subchannles_bitmap, tvb, offset-tlv_value_offset, ENC_NA); break; } case UCD_TLV_T_203_UL_PUSC_SUBCHANNEL_ROTATION: case UCD_TLV_T_205_RELATIVE_POWER_OFFSET_UL_HARQ_BURST: case UCD_TLV_T_206_RELATIVE_POWER_OFFSET_UL_BURST_CONTAINING_MAC_MGMT_MSG: case UCD_TLV_T_207_UL_INITIAL_TRANSMIT_TIMING: case UCD_TLV_T_210_FAST_FEEDBACK_REGION: case UCD_TLV_T_211_HARQ_ACK_REGION: case UCD_TLV_T_212_RANGING_REGION: case UCD_TLV_T_213_SOUNDING_REGION: { /* Unknown TLV type if cor2 not enabled. */ if (!include_cor2_changes) { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_invalid_tlv, tvb, offset-tlv_value_offset, ENC_NA); } break; } default: { add_tlv_subtree(&tlv_info, ucd_tree, hf_ucd_invalid_tlv, tvb, offset-tlv_value_offset, ENC_NA); } } /* end of switch(tlv_type) */ offset += tlv_len; } /* end of TLV process while loop */ } }
/* Decode RNG-RSP messages. */ static void dissect_mac_mgmt_msg_rng_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { proto_item *ranging_status_item = NULL; proto_item *dl_freq_override_item = NULL; proto_item *ss_mac_address_item = NULL; proto_item *frame_number_item = NULL; proto_item *opportunity_number_item = NULL; guint offset = 0; guint tlv_offset; guint tvb_len; proto_item *rng_rsp_item, *sub_item; proto_item *tlv_item = NULL; proto_tree *rng_rsp_tree; proto_tree *sub_tree = NULL; tlv_info_t tlv_info; gint tlv_type; guint tlv_len; guint this_offset = 0; tlv_info_t sub_tlv_info; gint sub_tlv_type; gint sub_tlv_len; guint sub_tlv_offset; float timing_adjust; float power_level_adjust; { /* we are being asked for details */ /* Get the tvb reported length */ tvb_len = tvb_reported_length(tvb); /* display MAC payload type RNG-RSP */ rng_rsp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tvb_len, "MAC Management Message, RNG-RSP"); /* add MAC RNG-RSP subtree */ rng_rsp_tree = proto_item_add_subtree(rng_rsp_item, ett_mac_mgmt_msg_rng_rsp_decoder); proto_tree_add_item(rng_rsp_tree, hf_rng_req_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; while(offset < tvb_len) { /* Get the TLV data. */ 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 */ col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "RNG-RSP TLV error"); proto_tree_add_item(rng_rsp_tree, hf_rng_invalid_tlv, tvb, offset, (tvb_len - offset), ENC_NA); break; } /* get the offset to the TLV data */ tlv_offset = offset + get_tlv_value_offset(&tlv_info); switch (tlv_type) { case RNG_RSP_TIMING_ADJUST: { sub_tree = add_tlv_subtree_no_item(&tlv_info, rng_rsp_tree, hf_rng_rsp_timing_adjust, tvb, offset); timing_adjust = (float)(tvb_get_ntohl(tvb, tlv_offset) / 4.0); tlv_item = proto_tree_add_float_format_value(sub_tree, hf_rng_rsp_timing_adjust, tvb, tlv_offset, 4, timing_adjust, " %.2f modulation symbols", timing_adjust); if ((timing_adjust < -2) || (timing_adjust > 2)) proto_item_append_text(tlv_item, " (during periodic ranging shall not exceed +- 2)"); break; } case RNG_RSP_POWER_LEVEL_ADJUST: { sub_tree = add_tlv_subtree_no_item(&tlv_info, rng_rsp_tree, hf_rng_rsp_power_level_adjust, tvb, offset); power_level_adjust = (float)(tvb_get_guint8(tvb, tlv_offset) / 4.0); proto_tree_add_float_format_value(sub_tree, hf_rng_rsp_power_level_adjust, tvb, tlv_offset, 1, power_level_adjust, " %.2f dB", power_level_adjust); break; } case RNG_RSP_OFFSET_FREQ_ADJUST: { tlv_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_offset_freq_adjust, tvb, offset, ENC_BIG_ENDIAN); proto_item_append_text(tlv_item, " Hz"); break; } case RNG_RSP_RANGING_STATUS: ranging_status_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ranging_status, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_DL_FREQ_OVERRIDE: { dl_freq_override_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_dl_freq_override, tvb, offset, ENC_BIG_ENDIAN); proto_item_append_text(dl_freq_override_item, " kHz"); break; } case RNG_RSP_UL_CHANNEL_ID_OVERRIDE: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ul_chan_id_override, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_DL_OPERATIONAL_BURST_PROFILE: sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_dl_operational_burst_profile, tvb, offset, ENC_BIG_ENDIAN); sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree); proto_tree_add_item(sub_tree, hf_rng_rsp_dl_operational_burst_profile_diuc, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_dl_operational_burst_profile_ccc, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); break; case RNG_RSP_SS_MAC_ADDRESS: if (tlv_len == 6) { add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ss_mac_address, tvb, offset, ENC_NA); } else { add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_invalid_tlv, tvb, offset, ENC_NA); } break; case RNG_RSP_BASIC_CID: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_basic_cid, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_PRIMARY_MGMT_CID: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_primary_mgmt_cid, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_AAS_BROADCAST_PERMISSION: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_broadcast, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_FRAME_NUMBER: frame_number_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_frame_number, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_OPPORTUNITY_NUMBER: opportunity_number_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_opportunity_number, tvb, offset, ENC_BIG_ENDIAN); if (tvb_get_ntohl(tvb, tlv_offset) == 0) proto_item_append_text(opportunity_number_item, " (may not be 0!)"); break; case RNG_RSP_SERVICE_LEVEL_PREDICTION: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_service_level_prediction, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_RESOURCE_RETAIN_FLAG: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_resource_retain_flag, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_HO_PROCESS_OPTIMIZATION: sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ho_process_optimization, tvb, offset, ENC_BIG_ENDIAN); sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_0, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_1_2, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_3, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_4, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_5, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_6, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_7, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_8, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_9, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_10, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_11, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_12, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_13, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_14, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_15, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); break; case RNG_RSP_SBC_RSP_ENCODINGS: sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "SBC-RSP Encodings"); call_dissector(sbc_rsp_handle, tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree); break; case RNG_RSP_REG_RSP_ENCODINGS: sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "REG-RSP Encodings"); call_dissector(reg_rsp_handle, tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree); break; /* Implemented message encoding 33 (Table 367 in IEEE 802.16e-2007) */ case RNG_RSP_DL_OP_BURST_PROFILE_OFDMA: sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_dl_op_burst_profile_ofdma, tvb, offset, ENC_BIG_ENDIAN); sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree); proto_tree_add_item(sub_tree, hf_rng_rsp_least_robust_diuc, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_repetition_coding_indication, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_config_change_count_of_dcd, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); break; case RNG_RSP_HO_ID: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ho_id, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_LOCATION_UPDATE_RESPONSE: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_location_update_response, tvb, offset, ENC_BIG_ENDIAN); break; case RNG_RSP_PAGING_INFORMATION: sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_paging_information, tvb, offset, ENC_NA); sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree); proto_tree_add_item(sub_tree, hf_rng_rsp_paging_cycle, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_paging_offset, tvb, tlv_offset+2, 1, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_paging_group_id, tvb, tlv_offset+3, 2, ENC_BIG_ENDIAN); break; case RNG_RSP_POWER_SAVING_CLASS_PARAMETERS: sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Power Saving Class Parameters"); dissect_power_saving_class(sub_tree, tlv_type, tvb, tlv_len, pinfo, tlv_offset); break; case RNG_RSP_SA_CHALLENGE_TUPLE: /* Display SA Challenge Tuple header */ sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "SA Challenge Tuple"); /* add subtree */ /* Use a local copy of tlv_offset */ this_offset = tlv_offset; while(this_offset < tlv_len) { /* Get the sub TLV data. */ init_tlv_info(&sub_tlv_info, tvb, this_offset); /* get the sub TLV type */ sub_tlv_type = get_tlv_type(&sub_tlv_info); /* get the TLV length */ sub_tlv_len = get_tlv_length(&sub_tlv_info); if(tlv_type == -1 || sub_tlv_len > MAX_TLV_LEN || sub_tlv_len < 1) { /* invalid tlv info */ col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "RNG-RSP TLV error"); proto_tree_add_item(rng_rsp_tree, hf_rng_invalid_tlv, tvb, tlv_offset, (tvb_len - offset), ENC_NA); break; } /* get the offset to the sub TLV data */ sub_tlv_offset = this_offset + get_tlv_value_offset(&sub_tlv_info); switch (sub_tlv_type) { case RNG_RSP_SA_CHALLENGE_BS_RANDOM: add_tlv_subtree(&sub_tlv_info, sub_tree, hf_rng_rsp_bs_random, tvb, this_offset, ENC_NA); break; case RNG_RSP_SA_CHALLENGE_AKID: add_tlv_subtree(&sub_tlv_info, sub_tree, hf_rng_rsp_akid, tvb, this_offset, ENC_NA); break; default: add_tlv_subtree(&sub_tlv_info, sub_tree, hf_tlv_type, tvb, this_offset, ENC_NA); break; } this_offset = sub_tlv_len + sub_tlv_offset; } break; case DSx_UPLINK_FLOW: /* display Uplink Service Flow Encodings info */ /* add subtree */ sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_rng_rsp_decoder, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Uplink QOS Parameters"); /* decode and display the DL Service Flow Encodings */ wimax_service_flow_encodings_decoder(tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree); break; case DSx_DOWNLINK_FLOW: /* display Downlink Service Flow Encodings info */ /* add subtree */ sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_rng_rsp_decoder, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Downlink QOS Parameters"); /* decode and display the DL Service Flow Encodings */ wimax_service_flow_encodings_decoder(tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree); break; case RNG_RSP_RANGING_CODE_ATTRIBUTES: /* case SHORT_HMAC_TUPLE: */ sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ranging_subchan, tvb, offset, ENC_BIG_ENDIAN); sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree); proto_tree_add_item(sub_tree, hf_rng_rsp_time_symbol_reference, tvb, tlv_offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_subchannel_reference, tvb, tlv_offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_ranging_code_index, tvb, tlv_offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(sub_tree, hf_rng_rsp_frame_number2, tvb, tlv_offset, 4, ENC_BIG_ENDIAN); break; case SHORT_HMAC_TUPLE_COR2: if (include_cor2_changes) { sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Short HMAC Tuple"); wimax_short_hmac_tuple_decoder(sub_tree, tvb, tlv_offset, tvb_len - offset); } else { /* Unknown TLV type */ add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_tlv_type, tvb, offset, ENC_NA); } break; default: add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_tlv_type, tvb, offset, ENC_NA); break; } offset = tlv_len + tlv_offset; } /* end of TLV process while loop */ if (ranging_status_item && dl_freq_override_item) proto_item_append_text(ranging_status_item, " (shall be set to 2 because Downlink Frequency Override is present)"); if (ss_mac_address_item && frame_number_item) { proto_item_append_text(frame_number_item, " (mutually exclusive with SS MAC Address!)"); proto_item_append_text(ss_mac_address_item, " (mutually exclusive with Frame Number!)"); } if (ss_mac_address_item && opportunity_number_item) { proto_item_append_text(opportunity_number_item, " (mutually exclusive with SS MAC Address!)"); proto_item_append_text(ss_mac_address_item, " (mutually exclusive with Initial Ranging Opportunity Number!)"); } if (!ranging_status_item) proto_item_append_text(rng_rsp_tree, " (Ranging status is missing!)"); } }