/* packet-lltd.c * Routines for LLTD dissection * Copyright 2012, Michael Mann * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include void proto_register_lltd(void); void proto_reg_handoff_lltd(void); static dissector_handle_t lltd_handle; static int proto_lltd; static int hf_lltd_version; static int hf_lltd_type_of_service; static int hf_lltd_reserved; static int hf_lltd_discovery_func; static int hf_lltd_discovery_real_dest_addr; static int hf_lltd_discovery_real_src_addr; static int hf_lltd_discovery_xid; static int hf_lltd_discovery_seq_num; static int hf_lltd_discover_gen_num; static int hf_lltd_discover_num_stations; static int hf_lltd_discover_station; static int hf_lltd_hello_gen_num; static int hf_lltd_hello_current_address; static int hf_lltd_hello_apparent_address; static int hf_lltd_tlv_type; static int hf_lltd_tlv_length; static int hf_lltd_host_id; static int hf_lltd_char_p; static int hf_lltd_char_x; static int hf_lltd_char_f; static int hf_lltd_char_m; static int hf_lltd_char_l; static int hf_lltd_char_reserved; static int hf_lltd_physical_medium; static int hf_lltd_wireless_mode; static int hf_lltd_bssid; static int hf_lltd_ssid; static int hf_lltd_ipv4_address; static int hf_lltd_ipv6_address; static int hf_lltd_max_operation_rate; static int hf_lltd_performance_count_freq; static int hf_lltd_link_speed; static int hf_lltd_rssi; static int hf_lltd_machine_name; static int hf_lltd_support_info; static int hf_lltd_device_uuid; static int hf_lltd_qos_char_e; static int hf_lltd_qos_char_q; static int hf_lltd_qos_char_p; static int hf_lltd_qos_char_reserved; static int hf_lltd_80211_physical_medium; static int hf_lltd_sees_list_working_set; static int hf_lltd_repeater_ap_lineage; static int hf_lltd_emit_num_descs; static int hf_lltd_emit_type; static int hf_lltd_emit_pause; static int hf_lltd_emit_src_addr; static int hf_lltd_emit_dest_addr; static int hf_lltd_queryresp_more_descs; static int hf_lltd_queryresp_memory_descs; static int hf_lltd_queryresp_num_descs; static int hf_lltd_queryresp_type; static int hf_lltd_queryresp_real_src_addr; static int hf_lltd_queryresp_ethernet_src_addr; static int hf_lltd_queryresp_ethernet_dest_addr; static int hf_lltd_flat_crc_bytes; static int hf_lltd_flat_crc_packets; static int hf_lltd_query_large_tlv_type; static int hf_lltd_query_large_tlv_offset; static int hf_lltd_querylargeresp_more_descs; static int hf_lltd_querylargeresp_memory_descs; static int hf_lltd_querylargeresp_num_descs; static int hf_lltd_querylargeresp_data; static int hf_lltd_qos_diag_func; static int hf_lltd_qos_real_dest_addr; static int hf_lltd_qos_real_src_addr; static int hf_lltd_qos_seq_num; static int hf_lltd_qos_initialize_interrupt_mod; static int hf_lltd_qos_ready_sink_link_speed; static int hf_lltd_qos_ready_perf_count_freq; static int hf_lltd_qos_probe_controller_transmit_timestamp; static int hf_lltd_qos_probe_sink_receive_timestamp; static int hf_lltd_qos_probe_sink_transmit_timestamp; static int hf_lltd_qos_probe_test_type; static int hf_lltd_qos_probe_packet_id; static int hf_lltd_qos_probe_t; static int hf_lltd_qos_probe_8021p_value; static int hf_lltd_qos_probe_payload; static int hf_lltd_qos_error_value; static int hf_lltd_qos_count_snapshot_history; static int hf_lltd_qos_query_resp_r; static int hf_lltd_qos_query_resp_e; static int hf_lltd_qos_query_resp_num_events; static int hf_lltd_qos_query_resp_controller_timestamp; static int hf_lltd_qos_query_resp_sink_timestamp; static int hf_lltd_qos_query_resp_packet_id; static int hf_lltd_qos_query_resp_reserved; static int hf_lltd_qos_counter_result_subsec_span; static int hf_lltd_qos_counter_result_byte_scale; static int hf_lltd_qos_counter_result_packet_scale; static int hf_lltd_qos_counter_result_history_size; static int hf_lltd_qos_snapshot_bytes_recv; static int hf_lltd_qos_snapshot_packets_recv; static int hf_lltd_qos_snapshot_bytes_sent; static int hf_lltd_qos_snapshot_packets_sent; static int ett_lltd; static int ett_base_header; static int ett_discover_stations; static int ett_tlv; static int ett_tlv_item; static int ett_characteristics; static int ett_qos_characteristics; static int ett_repeater_ap_lineage; static int ett_emitee_descs; static int ett_emitee_descs_item; static int ett_recvee_descs; static int ett_recvee_descs_item; static int ett_qos_event_descs; static int ett_qos_event_item; static int ett_qos_snapshot_list; static int ett_qos_snapshot_item; static expert_field ei_lltd_tlv_length_invalid; static expert_field ei_lltd_too_many_paths; static expert_field ei_lltd_type_of_service; static expert_field ei_lltd_char_reserved; static expert_field ei_lltd_qos_seq_num; static expert_field ei_lltd_discovery_func; static expert_field ei_lltd_tlv_type; static expert_field ei_lltd_qos_diag_func; #define LLTD_CHARACTERISTIC_P_MASK 0x80000000 #define LLTD_CHARACTERISTIC_X_MASK 0x40000000 #define LLTD_CHARACTERISTIC_F_MASK 0x20000000 #define LLTD_CHARACTERISTIC_M_MASK 0x10000000 #define LLTD_CHARACTERISTIC_L_MASK 0x08000000 #define LLTD_CHARACTERISTIC_RESERVE_MASK 0x07FFFFFF #define LLTD_QOS_CHARACTERISTIC_E_MASK 0x80000000 #define LLTD_QOS_CHARACTERISTIC_Q_MASK 0x40000000 #define LLTD_QOS_CHARACTERISTIC_P_MASK 0x20000000 #define LLTD_QOS_CHARACTERISTIC_RESERVE_MASK 0x1FFFFFFF #define LLTD_QUERY_RESP_M_MASK 0x8000 #define LLTD_QUERY_RESP_E_MASK 0x4000 #define LLTD_QUERY_RESP_NUM_DESCS_MASK 0x3FFF static const value_string lltd_tos_vals[] = { { 0, "Topology discovery" }, { 1, "Quick discovery" }, { 2, "QoS Diagnostics" }, { 0, NULL } }; static const value_string lltd_discovery_vals[] = { { 0x00, "Discover" }, { 0x01, "Hello" }, { 0x02, "Emit" }, { 0x03, "Train" }, { 0x04, "Probe" }, { 0x05, "Ack" }, { 0x06, "Query" }, { 0x07, "QueryResp" }, { 0x08, "Reset" }, { 0x09, "Charge" }, { 0x0A, "Flat" }, { 0x0B, "QueryLargeTlv" }, { 0x0C, "QueryLargeTlvResp" }, { 0, NULL } }; static const value_string lltd_qos_diag_vals[] = { { 0x00, "QosInitializeSink" }, { 0x01, "QosReady" }, { 0x02, "QosProbe" }, { 0x03, "QosQuery" }, { 0x04, "QosQueryResp" }, { 0x05, "QosReset" }, { 0x06, "QosError" }, { 0x07, "QosAck" }, { 0x08, "QosCounterSnapshot" }, { 0x09, "QosCounterResult" }, { 0x0A, "QosCounterLease" }, { 0, NULL } }; static const value_string lltd_tlv_type_vals[] = { { 0x00, "End of Property List" }, { 0x01, "Host ID" }, { 0x02, "Characteristics" }, { 0x03, "Physical Medium" }, { 0x04, "Wireless Mode" }, { 0x05, "802.11 BSSID" }, { 0x06, "802.11 SSID" }, { 0x07, "IPv4 Address" }, { 0x08, "IPv6 Address" }, { 0x09, "802.11 Maximum Operation Rate" }, { 0x0A, "Performance Counter Frequency" }, { 0x0C, "Link Speed" }, { 0x0D, "802.11 RSSI" }, { 0x0E, "Icon Image" }, { 0x0F, "Machine Name" }, { 0x10, "Support Information" }, { 0x11, "Friendly Name" }, { 0x12, "Device UUID" }, { 0x13, "Hardware ID" }, { 0x14, "QoS Characteristics" }, { 0x15, "802.11 Physical Medium" }, { 0x16, "AP Association Table" }, { 0x18, "Detailed Icon Image" }, { 0x19, "Sees-List Working Set" }, { 0x1A, "Component Table" }, { 0x1B, "Repeater AP Lineage" }, { 0x1C, "Repeater AP Table" }, { 0, NULL } }; static const value_string lltd_wireless_mode_vals[] = { { 0x00, "802.11 IBSS or ad-hoc mode" }, { 0x01, "802.11 infrastructure mode" }, { 0, NULL } }; static const value_string lltd_80211_physical_medium_vals[] = { { 0x00, "Unknown" }, { 0x01, "FHSS 2.4 GHz" }, { 0x02, "DSSS 2.4 GHz" }, { 0x03, "IR Baseband" }, { 0x04, "OFDM 5 GHz" }, { 0x05, "HRDSSS" }, { 0x06, "ERP" }, { 0, NULL } }; static const value_string lltd_emit_type_vals[] = { { 0x00, "Train" }, { 0x01, "Probe" }, { 0, NULL } }; static const value_string lltd_queryresp_type_vals[] = { { 0x00, "Probe" }, { 0x01, "ARP" }, { 0, NULL } }; static const value_string lltd_query_large_tlv_type_vals[] = { { 0x0E, "Icon Image" }, { 0x11, "Friendly Name" }, { 0x13, "Hardware ID" }, { 0x16, "AP Association Table" }, { 0x18, "Detailed Icon Image" }, { 0x1A, "Component Table" }, { 0x1C, "Repeater AP Table" }, { 0, NULL } }; static const value_string lltd_interrupt_mod_vals[] = { { 0x00, "Disable interrupt moderation" }, { 0x01, "Enable interrupt moderation" }, { 0xFF, "Use existing interrupt moderation setting" }, { 0, NULL } }; static const value_string lltd_qos_probe_test_type_vals[] = { { 0x00, "Timed Probe" }, { 0x01, "Probegap originating from the controller" }, { 0x02, "Probegap originating from the sink" }, { 0, NULL } }; static const value_string lltd_qos_error_vals[] = { { 0x00, "Insufficient Resources" }, { 0x01, "Busy. Try again later" }, { 0x02, "Interrupt moderation not available" }, { 0, NULL } }; static const true_false_string tfs_full_half_duplex = { "Full Duplex", "Half Duplex" }; static int dissect_lltd_tlv(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint32_t offset, bool* end) { uint8_t type, length = 0; proto_item *tlv_item, *type_item; proto_tree *tlv_tree, *type_tree; uint32_t i, temp32; type = tvb_get_uint8(tvb, offset); if (type == 0) { /* End of Property type doesn't have length */ tlv_tree = proto_tree_add_subtree(tree, tvb, offset, 1, ett_tlv_item, &tlv_item, "TLV Item (End of Property List)"); *end = true; } else { length = tvb_get_uint8(tvb, offset+1); tlv_tree = proto_tree_add_subtree_format(tree, tvb, offset, length+2, ett_tlv_item, &tlv_item, "TLV Item (%s)", val_to_str(type, lltd_tlv_type_vals, "Unknown (0x%02x)")); *end = false; } proto_tree_add_item(tlv_tree, hf_lltd_tlv_type, tvb, offset, 1, ENC_NA); if (type != 0) proto_tree_add_item(tlv_tree, hf_lltd_tlv_length, tvb, offset+1, 1, ENC_NA); if ((type != 0) && (length > tvb_reported_length_remaining(tvb, offset+2))) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "TLV Length field too big"); *end = true; return 2; } switch(type) { case 0x00: /* End of Property List */ /* No data, no length field */ return 1; case 0x01: /* Host ID */ if (length != 6) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Host ID length"); } proto_tree_add_item(tlv_tree, hf_lltd_host_id, tvb, offset+2, 6, ENC_NA); break; case 0x02: /* Characteristics */ if (length != 4) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Characteristics length"); } else { type_tree = proto_tree_add_subtree(tree, tvb, offset+2, 4, ett_characteristics, &type_item, "Characteristics"); proto_tree_add_item(type_tree, hf_lltd_char_p, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_char_x, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_char_f, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_char_m, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_char_l, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_char_reserved, tvb, offset+2, 4, ENC_BIG_ENDIAN); if (tvb_get_ntohl(tvb, offset+2) & LLTD_CHARACTERISTIC_RESERVE_MASK) expert_add_info(pinfo, type_item, &ei_lltd_char_reserved); } break; case 0x03: /* Physical Medium */ if (length != 4) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Physical Medium length"); } proto_tree_add_item(tlv_tree, hf_lltd_physical_medium, tvb, offset+2, 4, ENC_BIG_ENDIAN); break; case 0x04: /* Wireless Mode */ if (length != 1) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Wireless Mode length"); } proto_tree_add_item(tlv_tree, hf_lltd_wireless_mode, tvb, offset+2, 1, ENC_BIG_ENDIAN); break; case 0x05: /* 802.11 BSSID */ if (length != 6) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid BSSID length"); } proto_tree_add_item(tlv_tree, hf_lltd_bssid, tvb, offset+2, 6, ENC_NA); break; case 0x06: /* 802.11 SSID */ if (length > 32) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "SSID length too large"); } proto_tree_add_item(tlv_tree, hf_lltd_ssid, tvb, offset+2, length, ENC_NA|ENC_ASCII); break; case 0x07: /* IPv4 Address */ if (length != 4) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid IPv4 Address length"); } proto_tree_add_item(tlv_tree, hf_lltd_ipv4_address, tvb, offset+2, 4, ENC_BIG_ENDIAN); break; case 0x08: /* IPv6 Address */ if (length != 16) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid IPv6 Address length"); } proto_tree_add_item(tlv_tree, hf_lltd_ipv6_address, tvb, offset+2, 16, ENC_NA); break; case 0x09: /* 802.11 Maximum Operation Rate */ if (length != 2) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Maximum Operation Rate length"); } proto_tree_add_item(tlv_tree, hf_lltd_max_operation_rate, tvb, offset+2, 2, ENC_BIG_ENDIAN); break; case 0x0A: /* Performance Counter Frequency */ if (length != 8) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Performance Counter Frequency length"); } proto_tree_add_item(tlv_tree, hf_lltd_performance_count_freq, tvb, offset+2, 8, ENC_BIG_ENDIAN); break; case 0x0C: /* Link Speed */ if (length != 4) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Link Speed length"); } proto_tree_add_item(tlv_tree, hf_lltd_link_speed, tvb, offset+2, 4, ENC_BIG_ENDIAN); break; case 0x0D: /* 802.11 RSSI */ if (length != 4) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid RSSI length"); } proto_tree_add_item(tlv_tree, hf_lltd_rssi, tvb, offset+2, 4, ENC_BIG_ENDIAN); break; case 0x0F: /* Machine Name */ if (length > 32) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Machine Name length too large"); } proto_tree_add_item(tlv_tree, hf_lltd_machine_name, tvb, offset+2, length, ENC_LITTLE_ENDIAN|ENC_UCS_2); break; case 0x10: /* Support Information */ if (length > 64) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Support Information length too large"); } proto_tree_add_item(tlv_tree, hf_lltd_support_info, tvb, offset+2, length, ENC_LITTLE_ENDIAN|ENC_UCS_2); break; case 0x11: /* Friendly Name */ if (length != 0) expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Friendly Name length"); break; case 0x12: /* Device UUID */ if (length != 22) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Device UUID length"); } proto_tree_add_item(tlv_tree, hf_lltd_device_uuid, tvb, offset+2, 22, ENC_NA); break; case 0x13: /* Hardware ID */ if (length != 0) expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Hardware ID length"); break; case 0x14: /* QoS Characteristics */ if (length != 4) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "QoS Characteristics length"); } else { type_tree = proto_tree_add_subtree(tlv_tree, tvb, offset+2, 4, ett_qos_characteristics, &type_item, "QoS Characteristics"); proto_tree_add_item(type_tree, hf_lltd_qos_char_e, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_qos_char_q, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_qos_char_p, tvb, offset+2, 4, ENC_BIG_ENDIAN); proto_tree_add_item(type_tree, hf_lltd_qos_char_reserved, tvb, offset+2, 4, ENC_BIG_ENDIAN); temp32 = tvb_get_ntohl(tvb, offset+2); if (temp32 & LLTD_QOS_CHARACTERISTIC_RESERVE_MASK) expert_add_info(pinfo, type_item, &ei_lltd_char_reserved); } break; case 0x15: /* 802.11 Physical Medium */ if (length != 1) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid 802.11 Physical Medium length"); } proto_tree_add_item(tlv_tree, hf_lltd_80211_physical_medium, tvb, offset+2, 1, ENC_BIG_ENDIAN); break; case 0x19: /* Sees-List Working Set */ if (length != 2) { expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid Sees-List Working Set length"); } proto_tree_add_item(tlv_tree, hf_lltd_sees_list_working_set, tvb, offset+2, 2, ENC_BIG_ENDIAN); break; case 0x1B: /* Repeater AP Lineage */ type_tree = proto_tree_add_subtree(tree, tvb, offset+2, length, ett_repeater_ap_lineage, NULL, "Repeater AP Lineage"); for (i = 0; i < length; i += 6) proto_tree_add_item(type_tree, hf_lltd_repeater_ap_lineage, tvb, offset+2+i, 6, ENC_NA); if (length > 36) expert_add_info(pinfo, tlv_item, &ei_lltd_too_many_paths); break; case 0x0E: /* Icon Image */ case 0x16: /* AP Association Table */ case 0x18: /* Detailed Icon Image */ case 0x1A: /* Component Table */ case 0x1C: /* Repeater AP Table */ if (length != 0) expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_length_invalid, "Invalid length"); break; default: expert_add_info_format(pinfo, tlv_item, &ei_lltd_tlv_type, "Invalid TLV Type 0x%02x", type); break; } return length+2; } static void dissect_lltd_discovery(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset) { proto_item *header_item, *func_item; proto_tree *header_tree, *func_tree, *func_subtree; uint8_t func; uint16_t temp16; bool end_tlv = false; int loop_offset, start_offset; func = tvb_get_uint8(tvb, offset); proto_tree_add_item(tree, hf_lltd_discovery_func, tvb, offset, 1, ENC_NA); col_add_str(pinfo->cinfo, COL_INFO, val_to_str(func, lltd_discovery_vals, "Unknown (0x%02x)")); offset++; /* Demultiplex header */ header_tree = proto_tree_add_subtree(tree, tvb, offset, 14, ett_base_header, &header_item, "Base header"); proto_tree_add_item(header_tree, hf_lltd_discovery_real_dest_addr, tvb, offset, 6, ENC_NA); proto_tree_add_item(header_tree, hf_lltd_discovery_real_src_addr, tvb, offset+6, 6, ENC_NA); if (func == 0) proto_tree_add_item(header_tree, hf_lltd_discovery_xid, tvb, offset+12, 2, ENC_BIG_ENDIAN); else proto_tree_add_item(header_tree, hf_lltd_discovery_seq_num, tvb, offset+12, 2, ENC_BIG_ENDIAN); switch(func) { case 0x00: /* Discover */ proto_tree_add_item(tree, hf_lltd_discover_gen_num, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_discover_num_stations, tvb, offset+16, 2, ENC_BIG_ENDIAN); temp16 = tvb_get_ntohs(tvb, offset+16); if (temp16 > 0) { func_tree = proto_tree_add_subtree(tree, tvb, offset+18, temp16*6, ett_discover_stations, NULL, "Stations"); for (loop_offset = 0; loop_offset < temp16*6; loop_offset += 6) proto_tree_add_item(func_tree, hf_lltd_discover_station, tvb, offset+18+loop_offset, 6, ENC_NA); } break; case 0x01: /* Hello */ proto_tree_add_item(tree, hf_lltd_hello_gen_num, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_hello_current_address, tvb, offset+16, 6, ENC_NA); proto_tree_add_item(tree, hf_lltd_hello_apparent_address, tvb, offset+22, 6, ENC_NA); func_tree = proto_tree_add_subtree(tree, tvb, offset+28, 0, ett_tlv, &func_item, "TLVs"); start_offset = loop_offset = offset+28; while ((end_tlv == false) && (tvb_reported_length_remaining(tvb, loop_offset) >= 1)) { loop_offset += dissect_lltd_tlv(tvb, pinfo, func_tree, loop_offset, &end_tlv); } proto_item_set_len(func_item, loop_offset-start_offset); break; case 0x02: /* Emit */ proto_tree_add_item(tree, hf_lltd_emit_num_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); temp16 = tvb_get_ntohs(tvb, offset+14); if (temp16 > 0) { func_tree = proto_tree_add_subtree(tree, tvb, offset+16, temp16*14, ett_emitee_descs, NULL, "EmiteeDescs"); for (loop_offset = 0; loop_offset < temp16*14; loop_offset += 14) { func_subtree = proto_tree_add_subtree(func_tree, tvb, offset+16+loop_offset, 14, ett_emitee_descs_item, NULL, "EmiteeDescs Item"); proto_tree_add_item(func_subtree, hf_lltd_emit_type, tvb, offset+16+loop_offset, 1, ENC_NA); proto_tree_add_item(func_subtree, hf_lltd_emit_pause, tvb, offset+16+loop_offset+1, 1, ENC_NA); proto_tree_add_item(func_subtree, hf_lltd_emit_src_addr, tvb, offset+16+loop_offset+2, 6, ENC_NA); proto_tree_add_item(func_subtree, hf_lltd_emit_dest_addr, tvb, offset+16+loop_offset+8, 6, ENC_NA); } } break; case 0x07: /* QueryResp */ proto_tree_add_item(tree, hf_lltd_queryresp_more_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_queryresp_memory_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_queryresp_num_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); temp16 = tvb_get_ntohs(tvb, offset+14) & LLTD_QUERY_RESP_NUM_DESCS_MASK; if (temp16 > 0) { func_tree = proto_tree_add_subtree(tree, tvb, offset+16, temp16*20, ett_recvee_descs, NULL, "RecveeDescs"); for (loop_offset = 0; loop_offset < temp16*14; loop_offset += 20) { func_subtree = proto_tree_add_subtree(func_tree, tvb, offset+16+loop_offset, 20, ett_recvee_descs_item, NULL, "RecveeDescs Item"); proto_tree_add_item(func_subtree, hf_lltd_queryresp_type, tvb, offset+16+loop_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_queryresp_real_src_addr, tvb, offset+16+loop_offset+2, 6, ENC_NA); proto_tree_add_item(func_subtree, hf_lltd_queryresp_ethernet_src_addr, tvb, offset+16+loop_offset+8, 6, ENC_NA); proto_tree_add_item(func_subtree, hf_lltd_queryresp_ethernet_dest_addr, tvb, offset+16+loop_offset+14, 6, ENC_NA); } } break; case 0x0A: /* Flat */ proto_tree_add_item(tree, hf_lltd_flat_crc_bytes, tvb, offset+14, 4, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_flat_crc_packets, tvb, offset+18, 1, ENC_BIG_ENDIAN); break; case 0x0B: /* QueryLargeTlv */ proto_tree_add_item(tree, hf_lltd_query_large_tlv_type, tvb, offset+14, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_query_large_tlv_offset, tvb, offset+15, 3, ENC_BIG_ENDIAN); break; case 0x0C: /* QueryLargeTlvResp */ proto_tree_add_item(tree, hf_lltd_querylargeresp_more_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_querylargeresp_memory_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_querylargeresp_num_descs, tvb, offset+14, 2, ENC_BIG_ENDIAN); temp16 = tvb_get_ntohs(tvb, offset+14) & LLTD_QUERY_RESP_NUM_DESCS_MASK; if (temp16 > 0) proto_tree_add_item(tree, hf_lltd_querylargeresp_data, tvb, offset+16, temp16, ENC_NA); break; case 0x03: /* Train */ case 0x04: /* Probe */ case 0x05: /* Ack */ case 0x06: /* Query */ case 0x08: /* Reset */ case 0x09: /* Charge */ /* No data */ break; default: expert_add_info_format(pinfo, header_item, &ei_lltd_discovery_func, "Invalid function 0x%02x", func); break; } } static void dissect_lltd_qos(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset) { proto_item *header_item; proto_tree *header_tree, *func_tree, *func_subtree; uint8_t func; uint16_t seq_num, temp16; int loop_offset; func = tvb_get_uint8(tvb, offset); proto_tree_add_item(tree, hf_lltd_qos_diag_func, tvb, offset, 1, ENC_NA); col_add_str(pinfo->cinfo, COL_INFO, val_to_str(func, lltd_qos_diag_vals, "Unknown (0x%02x)")); offset++; header_tree = proto_tree_add_subtree(tree, tvb, offset, 14, ett_base_header, &header_item, "Base header"); proto_tree_add_item(header_tree, hf_lltd_qos_real_dest_addr, tvb, offset, 6, ENC_NA); proto_tree_add_item(header_tree, hf_lltd_qos_real_src_addr, tvb, offset+6, 6, ENC_NA); proto_tree_add_item(header_tree, hf_lltd_qos_seq_num, tvb, offset+12, 2, ENC_BIG_ENDIAN); seq_num = tvb_get_ntohs(tvb, offset+12); switch(func) { case 0x00: /* QosInitializeSink */ proto_tree_add_item(tree, hf_lltd_qos_initialize_interrupt_mod, tvb, offset+14, 1, ENC_BIG_ENDIAN); break; case 0x01: /* QosReady */ proto_tree_add_item(tree, hf_lltd_qos_ready_sink_link_speed, tvb, offset+14, 4, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_ready_perf_count_freq, tvb, offset+18, 8, ENC_BIG_ENDIAN); break; case 0x02: /* QosProbe */ proto_tree_add_item(tree, hf_lltd_qos_probe_controller_transmit_timestamp, tvb, offset+14, 8, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_sink_receive_timestamp, tvb, offset+22, 8, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_sink_transmit_timestamp, tvb, offset+30, 8, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_test_type, tvb, offset+38, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_packet_id, tvb, offset+39, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_t, tvb, offset+40, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_8021p_value, tvb, offset+40, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_probe_payload, tvb, offset+41, 5, ENC_NA); break; case 0x03: /* QosQuery */ case 0x07: /* QosAck */ if (seq_num == 0) expert_add_info(pinfo, header_item, &ei_lltd_qos_seq_num); /* No Data */ break; case 0x04: /* QosQueryResp */ proto_tree_add_item(tree, hf_lltd_qos_query_resp_r, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_query_resp_e, tvb, offset+14, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_query_resp_num_events, tvb, offset+14, 2, ENC_BIG_ENDIAN); temp16 = tvb_get_ntohs(tvb, offset+14) & LLTD_QUERY_RESP_NUM_DESCS_MASK; if (temp16 > 0) { func_tree = proto_tree_add_subtree(tree, tvb, offset+16, temp16*18, ett_qos_event_descs, NULL, "QosEventDesc"); for (loop_offset = 0; loop_offset < temp16*18; loop_offset += 18) { func_subtree = proto_tree_add_subtree(func_tree, tvb, offset+16+loop_offset, 18, ett_qos_event_item, NULL, "Qos Event"); proto_tree_add_item(func_subtree, hf_lltd_qos_query_resp_controller_timestamp, tvb, offset+16+loop_offset, 8, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_qos_query_resp_sink_timestamp, tvb, offset+16+loop_offset+8, 8, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_qos_query_resp_packet_id, tvb, offset+16+loop_offset+16, 1, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_qos_query_resp_reserved, tvb, offset+16+loop_offset+17, 1, ENC_BIG_ENDIAN); } } break; case 0x05: /* QosReset */ /* No Data */ break; case 0x06: /* QosError */ proto_tree_add_item(tree, hf_lltd_qos_error_value, tvb, offset+14, 2, ENC_BIG_ENDIAN); break; case 0x08: /* QosCounterSnapshot */ if (seq_num == 0) expert_add_info(pinfo, header_item, &ei_lltd_qos_seq_num); proto_tree_add_item(tree, hf_lltd_qos_count_snapshot_history, tvb, offset+14, 1, ENC_BIG_ENDIAN); break; case 0x09: /* QosCounterResult */ proto_tree_add_item(tree, hf_lltd_qos_counter_result_subsec_span, tvb, offset+14, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_counter_result_byte_scale, tvb, offset+15, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_counter_result_packet_scale, tvb, offset+16, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_lltd_qos_counter_result_history_size, tvb, offset+17, 1, ENC_BIG_ENDIAN); temp16 = tvb_get_uint8(tvb, offset+17); if (temp16 > 0) { func_tree = proto_tree_add_subtree(tree, tvb, offset+18, temp16*4, ett_qos_snapshot_list, NULL, "Snapshot List"); for (loop_offset = 0; loop_offset < temp16*4; loop_offset += 4) { func_subtree = proto_tree_add_subtree(func_tree, tvb, offset+18+loop_offset, 4, ett_qos_snapshot_item, NULL, "Snapshot"); proto_tree_add_item(func_subtree, hf_lltd_qos_snapshot_bytes_recv, tvb, offset+16+loop_offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_qos_snapshot_packets_recv, tvb, offset+16+loop_offset+2, 2, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_qos_snapshot_bytes_sent, tvb, offset+16+loop_offset+4, 2, ENC_BIG_ENDIAN); proto_tree_add_item(func_subtree, hf_lltd_qos_snapshot_packets_sent, tvb, offset+16+loop_offset+6, 2, ENC_BIG_ENDIAN); } } break; case 0x0A: /* QosCounterLease */ /* No Data */ break; default: expert_add_info_format(pinfo, header_item, &ei_lltd_qos_diag_func, "Invalid function 0x%02x", func); break; } } static int dissect_lltd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *ti; proto_tree *lltd_tree; uint8_t tos; col_set_str(pinfo->cinfo, COL_PROTOCOL, "LLTD"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_lltd, tvb, 0, -1, ENC_NA); lltd_tree = proto_item_add_subtree(ti, ett_lltd); proto_tree_add_item(lltd_tree, hf_lltd_version, tvb, 0, 1, ENC_NA); proto_tree_add_item(lltd_tree, hf_lltd_type_of_service, tvb, 1, 1, ENC_NA); tos = tvb_get_uint8(tvb, 1); proto_tree_add_item(lltd_tree, hf_lltd_reserved, tvb, 2, 1, ENC_NA); switch(tos) { case 0: /* Topology discovery */ case 1: /* Quick discovery */ dissect_lltd_discovery(tvb, pinfo, lltd_tree, 3); break; case 2: /* QoS Diagnostics */ dissect_lltd_qos(tvb, pinfo, lltd_tree, 3); break; default: expert_add_info_format(pinfo, ti, &ei_lltd_type_of_service, "Invalid Type of Service value 0x%02x", tos); break; } return tvb_captured_length(tvb); } void proto_register_lltd(void) { static hf_register_info hf[] = { { &hf_lltd_version, {"Version", "lltd.version", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_type_of_service, {"Type of Service", "lltd.tos", FT_UINT8, BASE_HEX, VALS(lltd_tos_vals), 0, NULL, HFILL }}, { &hf_lltd_reserved, {"Reserved", "lltd.reserved", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_discovery_func, {"Discovery function", "lltd.discovery", FT_UINT8, BASE_HEX, VALS(lltd_discovery_vals), 0, NULL, HFILL }}, { &hf_lltd_discovery_real_dest_addr, { "Real Destination Address", "lltd.discovery.real_dest_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_discovery_real_src_addr, { "Real Source Address", "lltd.discovery.real_src_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_discovery_xid, {"XID", "lltd.discovery.xid", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_discovery_seq_num, {"Sequence Number", "lltd.discovery.seq_num", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_discover_gen_num, {"Generation Number", "lltd.discover.gen_num", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_discover_num_stations, {"Number of Stations", "lltd.discover.num_stations", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_discover_station, { "Station", "lltd.discover.station", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_hello_gen_num, {"Generation Number", "lltd.hello.gen_num", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_hello_current_address, { "Current Mapper Address", "lltd.hello.current_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_hello_apparent_address, { "Current Apparent Address", "lltd.hello.apparent_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_tlv_type, {"Type", "lltd.tlv.type", FT_UINT8, BASE_HEX, VALS(lltd_tlv_type_vals), 0, NULL, HFILL }}, { &hf_lltd_tlv_length, {"Length", "lltd.tlv.length", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_host_id, { "Host ID", "lltd.host_id", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_char_p, {"Public NAT", "lltd.characteristic.public_nat", FT_BOOLEAN, 32, NULL, LLTD_CHARACTERISTIC_P_MASK, NULL, HFILL }}, { &hf_lltd_char_x, {"Private NAT", "lltd.characteristic.private_nat", FT_BOOLEAN, 32, NULL, LLTD_CHARACTERISTIC_X_MASK, NULL, HFILL }}, { &hf_lltd_char_f, {"Duplex", "lltd.characteristic.duplex", FT_BOOLEAN, 32, TFS(&tfs_full_half_duplex), LLTD_CHARACTERISTIC_F_MASK, NULL, HFILL }}, { &hf_lltd_char_m, {"Management Web Page", "lltd.characteristic.web_page", FT_BOOLEAN, 32, TFS(&tfs_present_absent), LLTD_CHARACTERISTIC_M_MASK, NULL, HFILL }}, { &hf_lltd_char_l, {"Looping Outbound Packets", "lltd.characteristic.loop", FT_BOOLEAN, 32, NULL, LLTD_CHARACTERISTIC_L_MASK, NULL, HFILL }}, { &hf_lltd_char_reserved, {"Reserved", "lltd.characteristic.reserved", FT_UINT32, BASE_HEX, NULL, LLTD_CHARACTERISTIC_RESERVE_MASK, NULL, HFILL }}, { &hf_lltd_physical_medium, {"Physical Medium", "lltd.physical_medium", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_wireless_mode, {"Wireless Mode", "lltd.wireless_mode", FT_UINT8, BASE_HEX, VALS(lltd_wireless_mode_vals), 0, NULL, HFILL }}, { &hf_lltd_bssid, { "BSSID", "lltd.bssid", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_ssid, { "SSID", "lltd.ssid", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_ipv4_address, { "IPv4 Address", "lltd.ipv4_address", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_ipv6_address, { "IPv6 Address", "lltd.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_max_operation_rate, {"Maximum Operational Rate (.5 Mbps)", "lltd.max_operation_rate", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_performance_count_freq, {"Performance Counter Frequency", "lltd.performance_count_freq", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_link_speed, {"Link Speed (100 bps)", "lltd.link_speed", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_rssi, {"RSSI", "lltd.rssi", FT_INT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_machine_name, { "Machine Name", "lltd.machine_name", FT_STRING /*FT_UCS2_LE */, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_support_info, { "Support Information", "lltd.support_info", FT_STRING /*FT_UCS2_LE */, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_device_uuid, { "Device UUID", "lltd.device_uuid", FT_GUID, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_char_e, {"Layer 2 Forwarding", "lltd.qos_characteristic.layer2_forwarding", FT_BOOLEAN, 32, NULL, LLTD_QOS_CHARACTERISTIC_E_MASK, NULL, HFILL }}, { &hf_lltd_qos_char_q, {"802.1q VLAN", "lltd.qos_characteristic.vlan", FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), LLTD_QOS_CHARACTERISTIC_Q_MASK, NULL, HFILL }}, { &hf_lltd_qos_char_p, {"802.1q Priority Tagging", "lltd.qos_characteristic.tagging", FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), LLTD_QOS_CHARACTERISTIC_P_MASK, NULL, HFILL }}, { &hf_lltd_qos_char_reserved, {"Reserved", "lltd.qos_characteristic.reserved", FT_UINT32, BASE_HEX, NULL, LLTD_QOS_CHARACTERISTIC_RESERVE_MASK, NULL, HFILL }}, { &hf_lltd_80211_physical_medium, {"802.11 Physical Medium", "lltd.80211_physical_medium", FT_UINT8, BASE_HEX, VALS(lltd_80211_physical_medium_vals), 0, NULL, HFILL }}, { &hf_lltd_sees_list_working_set, {"Sees-List Working Set", "lltd.sees_list_working_set", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_repeater_ap_lineage, { "Address Path to Root", "lltd.address_path_to_root", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_emit_num_descs, {"Number of EmiteeDescs", "lltd.emit.num_descs", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_emit_type, {"Type", "lltd.emit.type", FT_UINT8, BASE_HEX, VALS(lltd_emit_type_vals), 0, NULL, HFILL }}, { &hf_lltd_emit_pause, {"Pause (ms)", "lltd.emit.pause", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_emit_src_addr, { "Source Address", "lltd.emit.src_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_emit_dest_addr, { "Destination Address", "lltd.emit.dest_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_queryresp_more_descs, {"More RecveeDescs", "lltd.queryresp.more", FT_BOOLEAN, 16, NULL, LLTD_QUERY_RESP_M_MASK, NULL, HFILL }}, { &hf_lltd_queryresp_memory_descs, {"No memory left", "lltd.queryresp.memory", FT_BOOLEAN, 16, NULL, LLTD_QUERY_RESP_E_MASK, NULL, HFILL }}, { &hf_lltd_queryresp_num_descs, {"Number of RecveeDescs", "lltd.queryresp.num_descs", FT_UINT16, BASE_DEC, NULL, LLTD_QUERY_RESP_NUM_DESCS_MASK, NULL, HFILL }}, { &hf_lltd_queryresp_type, {"Type", "lltd.queryresp.type", FT_UINT16, BASE_HEX, VALS(lltd_queryresp_type_vals), 0, NULL, HFILL }}, { &hf_lltd_queryresp_real_src_addr, { "Real Source Address", "lltd.queryresp.real_src_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_queryresp_ethernet_src_addr, { "Ethernet Source Address", "lltd.queryresp.ethernet_src_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_queryresp_ethernet_dest_addr, { "Ethernet Destination Address", "lltd.queryresp.ethernet_dest_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_flat_crc_bytes, {"Current Transmit Credit (bytes)", "lltd.flat.crc_bytes", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_flat_crc_packets, {"Current Transmit Credit (packets)", "lltd.flat.crc_packets", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_query_large_tlv_type, {"Type", "lltd.query_large_tlv.type", FT_UINT8, BASE_HEX, VALS(lltd_query_large_tlv_type_vals), 0, NULL, HFILL }}, { &hf_lltd_query_large_tlv_offset, {"Offset", "lltd.query_large_tlv.offset", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_querylargeresp_more_descs, {"More RecveeDescs", "lltd.querylargeresp.more", FT_BOOLEAN, 16, NULL, LLTD_QUERY_RESP_M_MASK, NULL, HFILL }}, { &hf_lltd_querylargeresp_memory_descs, {"No memory left", "lltd.querylargeresp.memory", FT_BOOLEAN, 16, NULL, LLTD_QUERY_RESP_E_MASK, NULL, HFILL }}, { &hf_lltd_querylargeresp_num_descs, {"Number of RecveeDescs", "lltd.querylargeresp.num_descs", FT_UINT16, BASE_DEC, NULL, LLTD_QUERY_RESP_NUM_DESCS_MASK, NULL, HFILL }}, { &hf_lltd_querylargeresp_data, { "Data", "lltd.querylargeresp.data", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_diag_func, {"QoS Diagnostics function", "lltd.qos_diag", FT_UINT8, BASE_HEX, VALS(lltd_qos_diag_vals), 0, NULL, HFILL }}, { &hf_lltd_qos_real_dest_addr, { "Real Destination Address", "lltd.qos.real_dest_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_real_src_addr, { "Real Source Address", "lltd.qos.real_src_addr", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_seq_num, {"Sequence Number", "lltd.qos.seq_num", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_initialize_interrupt_mod, {"Interrupt Mod", "lltd.qos_initialize.interrupt_mod", FT_UINT8, BASE_HEX, VALS(lltd_interrupt_mod_vals), 0, NULL, HFILL }}, { &hf_lltd_qos_ready_sink_link_speed, {"Sink Link Speed (100 bps)", "lltd.qos_ready.sink_link_speed", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_ready_perf_count_freq, {"Performance Counter Frequency", "lltd.qos_ready.performance_count_freq", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_probe_controller_transmit_timestamp, {"Controller Transmit Timestamp", "lltd.qos_probe.controller_transmit_timestamp", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_probe_sink_receive_timestamp, {"Sink Receive Timestamp", "lltd.qos_probe.sink_receive_timestamp", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_probe_sink_transmit_timestamp, {"Sink Transmit Timestamp", "lltd.qos_probe.sink_transmit_timestamp", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_probe_test_type, {"Test Type", "lltd.qos_probe.test_type", FT_UINT8, BASE_HEX, VALS(lltd_qos_probe_test_type_vals), 0, NULL, HFILL }}, { &hf_lltd_qos_probe_packet_id, {"Packet ID", "lltd.qos_probe.packet_id", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_probe_t, {"802.1p Tag", "lltd.qos_probe.tag", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x80, NULL, HFILL }}, { &hf_lltd_qos_probe_8021p_value, {"802.1p Value", "lltd.qos_probe.value", FT_UINT8, BASE_DEC, NULL, 0x7F, NULL, HFILL }}, { &hf_lltd_qos_probe_payload, {"Payload", "lltd.qos_probe.payload", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_error_value, {"Error Code", "lltd.qos_error", FT_UINT16, BASE_DEC, VALS(lltd_qos_error_vals), 0, NULL, HFILL }}, { &hf_lltd_qos_count_snapshot_history, {"History Size", "lltd.qos_count_snapshot.history", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_query_resp_r, {"Receipt", "lltd.qos_query_resp.receipt", FT_BOOLEAN, 16, NULL, LLTD_QUERY_RESP_M_MASK, NULL, HFILL }}, { &hf_lltd_qos_query_resp_e, {"No memory left", "lltd.qos_query_resp.memory", FT_BOOLEAN, 16, NULL, LLTD_QUERY_RESP_E_MASK, NULL, HFILL }}, { &hf_lltd_qos_query_resp_num_events, {"Number of Events", "lltd.qos_query_resp.num_events", FT_UINT16, BASE_DEC, NULL, LLTD_QUERY_RESP_NUM_DESCS_MASK, NULL, HFILL }}, { &hf_lltd_qos_query_resp_controller_timestamp, {"Controller Transmit Timestamp", "lltd.qos_query_resp.controller_timestamp", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_query_resp_sink_timestamp, {"Sink Receive Timestamp", "lltd.qos_query_resp.sink_timestamp", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_query_resp_packet_id, {"Packet ID", "lltd.qos_query_resp.packet_id", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_query_resp_reserved, {"Reserved", "lltd.qos_query_resp.reserved", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_counter_result_subsec_span, {"Subsecond Span (1/256th sec)", "lltd.qos_counter_result.subsec_span", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_counter_result_byte_scale, {"Byte Scale (kb)", "lltd.qos_counter_result.byte_scale", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_counter_result_packet_scale, {"Packet Scale", "lltd.qos_counter_result.packet_scale", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_counter_result_history_size, {"History Size", "lltd.qos_counter_result.history_size", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_snapshot_bytes_recv, {"Bytes Received", "lltd.qos_snapshot.bytes_recv", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_snapshot_packets_recv, {"Packets Received", "lltd.qos_snapshot.packets_recv", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_snapshot_bytes_sent, {"Bytes Sent", "lltd.qos_snapshot.bytes_sent", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_lltd_qos_snapshot_packets_sent, {"Packets Sent", "lltd.qos_snapshot.packets_sent", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }} }; static int *ett[] = { &ett_lltd, &ett_base_header, &ett_discover_stations, &ett_tlv, &ett_tlv_item, &ett_characteristics, &ett_qos_characteristics, &ett_repeater_ap_lineage, &ett_emitee_descs, &ett_emitee_descs_item, &ett_recvee_descs, &ett_recvee_descs_item, &ett_qos_event_descs, &ett_qos_event_item, &ett_qos_snapshot_list, &ett_qos_snapshot_item }; static ei_register_info ei[] = { { &ei_lltd_tlv_length_invalid, { "lltd.tlv.length.invalid", PI_MALFORMED, PI_ERROR, "Invalid length", EXPFILL }}, { &ei_lltd_char_reserved, { "lltd.characteristic.reserved.not_zero", PI_PROTOCOL, PI_WARN, "Non zero reserve bits", EXPFILL }}, { &ei_lltd_too_many_paths, { "lltd.too_many_paths", PI_PROTOCOL, PI_WARN, "Too many paths to root", EXPFILL }}, { &ei_lltd_tlv_type, { "lltd.tlv.type.invalid", PI_PROTOCOL, PI_WARN, "Invalid TLV Type 0x%02x", EXPFILL }}, { &ei_lltd_discovery_func, { "lltd.discovery.invalid", PI_PROTOCOL, PI_WARN, "Invalid function 0x%02x", EXPFILL }}, { &ei_lltd_qos_seq_num, { "lltd.qos.seq_num.cannot_be_zero", PI_PROTOCOL, PI_WARN, "Sequence number can not be 0", EXPFILL }}, { &ei_lltd_qos_diag_func, { "lltd.qos_diag.invalid", PI_PROTOCOL, PI_WARN, "Invalid function 0x%02x", EXPFILL }}, { &ei_lltd_type_of_service, { "lltd.tos.invalid", PI_PROTOCOL, PI_WARN, "Invalid Type of Service value 0x%02x", EXPFILL }}, }; expert_module_t* expert_lltd; proto_lltd = proto_register_protocol("Link Layer Topology Discovery", "LLTD", "lltd"); proto_register_field_array(proto_lltd, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_lltd = expert_register_protocol(proto_lltd); expert_register_field_array(expert_lltd, ei, array_length(ei)); lltd_handle = register_dissector("lltd", dissect_lltd, proto_lltd); } void proto_reg_handoff_lltd(void) { dissector_add_uint("ethertype", ETHERTYPE_LLTD, lltd_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */