/* * Copyright (c) 1998-2007 The TCPDUMP project * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code * distributions retain the above copyright notice and this paragraph * in its entirety, and (2) distributions including binary code include * the above copyright notice and this paragraph in its entirety in * the documentation or other materials provided with the distribution. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. * * support for the IEEE Link Discovery Protocol as per 802.1ab * * Original code by Hannes Gredler (hannes@juniper.net) * IEEE and TIA extensions by Carles Kishimoto */ #ifndef lint static const char rcsid[] _U_ = "@(#) $Header: /tcpdump/master/tcpdump/print-lldp.c,v 1.7.2.3 2008-03-20 09:33:52 hannes Exp $"; #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include "interface.h" #include "extract.h" #include "addrtoname.h" #include "af.h" #include "oui.h" #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) /* * TLV type codes */ #define LLDP_END_TLV 0 #define LLDP_CHASSIS_ID_TLV 1 #define LLDP_PORT_ID_TLV 2 #define LLDP_TTL_TLV 3 #define LLDP_PORT_DESCR_TLV 4 #define LLDP_SYSTEM_NAME_TLV 5 #define LLDP_SYSTEM_DESCR_TLV 6 #define LLDP_SYSTEM_CAP_TLV 7 #define LLDP_MGMT_ADDR_TLV 8 #define LLDP_PRIVATE_TLV 127 static const struct tok lldp_tlv_values[] = { { LLDP_END_TLV, "End" }, { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, { LLDP_PORT_ID_TLV, "Port ID" }, { LLDP_TTL_TLV, "Time to Live" }, { LLDP_PORT_DESCR_TLV, "Port Description" }, { LLDP_SYSTEM_NAME_TLV, "System Name" }, { LLDP_SYSTEM_DESCR_TLV, "System Description" }, { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, { LLDP_MGMT_ADDR_TLV, "Management Address" }, { LLDP_PRIVATE_TLV, "Organization specific" }, { 0, NULL} }; /* * Chassis ID subtypes */ #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 static const struct tok lldp_chassis_subtype_values[] = { { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, { 0, NULL} }; /* * Port ID subtypes */ #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 #define LLDP_PORT_LOCAL_SUBTYPE 7 static const struct tok lldp_port_subtype_values[] = { { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, { 0, NULL} }; /* * System Capabilities */ #define LLDP_CAP_OTHER (1 << 0) #define LLDP_CAP_REPEATER (1 << 1) #define LLDP_CAP_BRIDGE (1 << 2) #define LLDP_CAP_WLAN_AP (1 << 3) #define LLDP_CAP_ROUTER (1 << 4) #define LLDP_CAP_PHONE (1 << 5) #define LLDP_CAP_DOCSIS (1 << 6) #define LLDP_CAP_STATION_ONLY (1 << 7) static const struct tok lldp_cap_values[] = { { LLDP_CAP_OTHER, "Other"}, { LLDP_CAP_REPEATER, "Repeater"}, { LLDP_CAP_BRIDGE, "Bridge"}, { LLDP_CAP_WLAN_AP, "WLAN AP"}, { LLDP_CAP_ROUTER, "Router"}, { LLDP_CAP_PHONE, "Telephone"}, { LLDP_CAP_DOCSIS, "Docsis"}, { LLDP_CAP_STATION_ONLY, "Station Only"}, { 0, NULL} }; #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 static const struct tok lldp_8021_subtype_values[] = { { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, { 0, NULL} }; #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1) #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2) static const struct tok lldp_8021_port_protocol_id_values[] = { { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"}, { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"}, { 0, NULL} }; #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4 static const struct tok lldp_8023_subtype_values[] = { { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"}, { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"}, { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"}, { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"}, { 0, NULL} }; #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11 static const struct tok lldp_tia_subtype_values[] = { { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" }, { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" }, { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" }, { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" }, { 0, NULL} }; #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2 static const struct tok lldp_tia_location_altitude_type_values[] = { { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"}, { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"}, { 0, NULL} }; /* ANSI/TIA-1057 - Annex B */ #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6 static const struct tok lldp_tia_location_lci_catype_values[] = { { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"}, { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"}, { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"}, { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"}, { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"}, { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"}, { 0, NULL} }; static const struct tok lldp_tia_location_lci_what_values[] = { { 0, "location of DHCP server"}, { 1, "location of the network element believed to be closest to the client"}, { 2, "location of the client"}, { 0, NULL} }; /* * From RFC 3636 - dot3MauType */ #define LLDP_MAU_TYPE_UNKNOWN 0 #define LLDP_MAU_TYPE_AUI 1 #define LLDP_MAU_TYPE_10BASE_5 2 #define LLDP_MAU_TYPE_FOIRL 3 #define LLDP_MAU_TYPE_10BASE_2 4 #define LLDP_MAU_TYPE_10BASE_T 5 #define LLDP_MAU_TYPE_10BASE_FP 6 #define LLDP_MAU_TYPE_10BASE_FB 7 #define LLDP_MAU_TYPE_10BASE_FL 8 #define LLDP_MAU_TYPE_10BROAD36 9 #define LLDP_MAU_TYPE_10BASE_T_HD 10 #define LLDP_MAU_TYPE_10BASE_T_FD 11 #define LLDP_MAU_TYPE_10BASE_FL_HD 12 #define LLDP_MAU_TYPE_10BASE_FL_FD 13 #define LLDP_MAU_TYPE_100BASE_T4 14 #define LLDP_MAU_TYPE_100BASE_TX_HD 15 #define LLDP_MAU_TYPE_100BASE_TX_FD 16 #define LLDP_MAU_TYPE_100BASE_FX_HD 17 #define LLDP_MAU_TYPE_100BASE_FX_FD 18 #define LLDP_MAU_TYPE_100BASE_T2_HD 19 #define LLDP_MAU_TYPE_100BASE_T2_FD 20 #define LLDP_MAU_TYPE_1000BASE_X_HD 21 #define LLDP_MAU_TYPE_1000BASE_X_FD 22 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28 #define LLDP_MAU_TYPE_1000BASE_T_HD 29 #define LLDP_MAU_TYPE_1000BASE_T_FD 30 #define LLDP_MAU_TYPE_10GBASE_X 31 #define LLDP_MAU_TYPE_10GBASE_LX4 32 #define LLDP_MAU_TYPE_10GBASE_R 33 #define LLDP_MAU_TYPE_10GBASE_ER 34 #define LLDP_MAU_TYPE_10GBASE_LR 35 #define LLDP_MAU_TYPE_10GBASE_SR 36 #define LLDP_MAU_TYPE_10GBASE_W 37 #define LLDP_MAU_TYPE_10GBASE_EW 38 #define LLDP_MAU_TYPE_10GBASE_LW 39 #define LLDP_MAU_TYPE_10GBASE_SW 40 static const struct tok lldp_mau_types_values[] = { { LLDP_MAU_TYPE_UNKNOWN, "Unknown"}, { LLDP_MAU_TYPE_AUI, "AUI"}, { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"}, { LLDP_MAU_TYPE_FOIRL, "FOIRL"}, { LLDP_MAU_TYPE_10BASE_2, "10BASE2"}, { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"}, { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"}, { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"}, { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"}, { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"}, { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"}, { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"}, { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"}, { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"}, { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"}, { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"}, { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"}, { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"}, { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"}, { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"}, { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"}, { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"}, { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"}, { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"}, { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"}, { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"}, { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"}, { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"}, { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"}, { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"}, { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"}, { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"}, { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"}, { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"}, { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"}, { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"}, { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"}, { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"}, { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"}, { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"}, { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"}, { 0, NULL} }; #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0) #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1) static const struct tok lldp_8023_autonegotiation_values[] = { { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"}, { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"}, { 0, NULL} }; #define LLDP_TIA_CAPABILITY_MED (1 << 0) #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1) #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2) #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3) #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4) #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5) static const struct tok lldp_tia_capabilities_values[] = { { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"}, { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"}, { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"}, { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"}, { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"}, { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"}, { 0, NULL} }; #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4 static const struct tok lldp_tia_device_type_values[] = { { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"}, { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"}, { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"}, { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"}, { 0, NULL} }; #define LLDP_TIA_APPLICATION_TYPE_VOICE 1 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8 static const struct tok lldp_tia_application_type_values[] = { { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"}, { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"}, { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"}, { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"}, { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"}, { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"}, { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"}, { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"}, { 0, NULL} }; #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 5) #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6) #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 7) static const struct tok lldp_tia_network_policy_bits_values[] = { { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"}, { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"}, { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"}, { 0, NULL} }; #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1) #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6) #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f) #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3 static const struct tok lldp_tia_location_data_format_values[] = { { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"}, { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"}, { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"}, { 0, NULL} }; #define LLDP_TIA_LOCATION_DATUM_WGS_84 1 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3 static const struct tok lldp_tia_location_datum_type_values[] = { { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"}, { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"}, { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"}, { 0, NULL} }; #define LLDP_TIA_POWER_SOURCE_PSE 1 #define LLDP_TIA_POWER_SOURCE_LOCAL 2 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3 static const struct tok lldp_tia_power_source_values[] = { { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"}, { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"}, { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"}, { 0, NULL} }; #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1 #define LLDP_TIA_POWER_PRIORITY_HIGH 2 #define LLDP_TIA_POWER_PRIORITY_LOW 3 static const struct tok lldp_tia_power_priority_values[] = { { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"}, { LLDP_TIA_POWER_PRIORITY_HIGH, "high"}, { LLDP_TIA_POWER_PRIORITY_LOW, "low"}, { 0, NULL} }; #define LLDP_TIA_POWER_VAL_MAX 1024 static const struct tok lldp_tia_inventory_values[] = { { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" }, { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" }, { 0, NULL} }; /* * From RFC 3636 - ifMauAutoNegCapAdvertisedBits */ #define LLDP_MAU_PMD_OTHER (1 << 15) #define LLDP_MAU_PMD_10BASE_T (1 << 14) #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13) #define LLDP_MAU_PMD_100BASE_T4 (1 << 12) #define LLDP_MAU_PMD_100BASE_TX (1 << 11) #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10) #define LLDP_MAU_PMD_100BASE_T2 (1 << 9) #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8) #define LLDP_MAU_PMD_FDXPAUSE (1 << 7) #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6) #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5) #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4) #define LLDP_MAU_PMD_1000BASE_X (1 << 3) #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2) #define LLDP_MAU_PMD_1000BASE_T (1 << 1) #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0) static const struct tok lldp_pmd_capability_values[] = { { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"}, { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"}, { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"}, { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"}, { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"}, { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"}, { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"}, { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"}, { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"}, { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"}, { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"}, { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"}, { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"}, { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"}, { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"}, { 0, NULL} }; #define LLDP_MDI_PORT_CLASS (1 << 0) #define LLDP_MDI_POWER_SUPPORT (1 << 1) #define LLDP_MDI_POWER_STATE (1 << 2) #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3) static const struct tok lldp_mdi_values[] = { { LLDP_MDI_PORT_CLASS, "PSE"}, { LLDP_MDI_POWER_SUPPORT, "supported"}, { LLDP_MDI_POWER_STATE, "enabled"}, { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"}, { 0, NULL} }; #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2 static const struct tok lldp_mdi_power_pairs_values[] = { { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"}, { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"}, { 0, NULL} }; #define LLDP_MDI_POWER_CLASS0 1 #define LLDP_MDI_POWER_CLASS1 2 #define LLDP_MDI_POWER_CLASS2 3 #define LLDP_MDI_POWER_CLASS3 4 #define LLDP_MDI_POWER_CLASS4 5 static const struct tok lldp_mdi_power_class_values[] = { { LLDP_MDI_POWER_CLASS0, "class0"}, { LLDP_MDI_POWER_CLASS1, "class1"}, { LLDP_MDI_POWER_CLASS2, "class2"}, { LLDP_MDI_POWER_CLASS3, "class3"}, { LLDP_MDI_POWER_CLASS4, "class4"}, { 0, NULL} }; #define LLDP_AGGREGATION_CAPABILTIY (1 << 0) #define LLDP_AGGREGATION_STATUS (1 << 1) static const struct tok lldp_aggregation_values[] = { { LLDP_AGGREGATION_CAPABILTIY, "supported"}, { LLDP_AGGREGATION_STATUS, "enabled"}, { 0, NULL} }; /* * Interface numbering subtypes. */ #define LLDP_INTF_NUMB_IFX_SUBTYPE 2 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3 static const struct tok lldp_intf_numb_subtype_values[] = { { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" }, { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" }, { 0, NULL} }; #define LLDP_INTF_NUM_LEN 5 /* * Print IEEE private extensions. (802.1 annex F) */ static int lldp_private_8021_print(const u_char *tptr) { int subtype, hexdump = FALSE; subtype = *(tptr+3); printf("\n\t %s Subtype (%u)", tok2str(lldp_8021_subtype_values, "unknown", subtype), subtype); switch (subtype) { case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: printf("\n\t port vlan id (PVID): %u", EXTRACT_16BITS(tptr+4)); break; case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: printf("\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", EXTRACT_16BITS(tptr+5), bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)), *(tptr+4)); break; case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: printf("\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr+4)); printf("\n\t vlan name: "); safeputs((const char *)tptr+7, *(tptr+6)); break; case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: printf("\n\t protocol identity: "); safeputs((const char *)tptr+5, *(tptr+4)); break; default: hexdump = TRUE; break; } return hexdump; } /* * Print IEEE private extensions. (802.3) */ static int lldp_private_8023_print(const u_char *tptr) { int subtype, hexdump = FALSE; subtype = *(tptr+3); printf("\n\t %s Subtype (%u)", tok2str(lldp_8023_subtype_values, "unknown", subtype), subtype); switch (subtype) { case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: printf("\n\t autonegotiation [%s] (0x%02x)", bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)), *(tptr+4)); printf("\n\t PMD autoneg capability [%s] (0x%04x)", bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)), EXTRACT_16BITS(tptr+5)); printf("\n\t MAU type %s (0x%04x)", tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)), EXTRACT_16BITS(tptr+7)); break; case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: printf("\n\t MDI power support [%s], power pair %s, power class %s", bittok2str(lldp_mdi_values, "none", *(tptr+4)), tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)), tok2str(lldp_mdi_power_class_values, "unknown", *(tptr+6))); break; case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: printf("\n\t aggregation status [%s], aggregation port ID %u", bittok2str(lldp_aggregation_values, "none", *(tptr+4)), EXTRACT_32BITS(tptr+5)); break; case LLDP_PRIVATE_8023_SUBTYPE_MTU: printf("\n\t MTU size %u", EXTRACT_16BITS(tptr+4)); break; default: hexdump = TRUE; break; } return hexdump; } /* * Extract 34bits of latitude/longitude coordinates. */ static u_int64_t lldp_extract_latlon(const u_char *tptr) { u_int64_t latlon; latlon = *tptr & 0x3; latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1); return latlon; } /* * Print private TIA extensions. */ static int lldp_private_tia_print(const u_char *tptr, u_int tlv_len) { int subtype, hexdump = FALSE; u_int8_t location_format; u_int16_t power_val; u_int8_t lci_len, ca_type, ca_len; subtype = *(tptr+3); printf("\n\t %s Subtype (%u)", tok2str(lldp_tia_subtype_values, "unknown", subtype), subtype); switch (subtype) { case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: printf("\n\t Media capabilities [%s] (0x%04x)", bittok2str(lldp_tia_capabilities_values, "none", EXTRACT_16BITS(tptr+4)), EXTRACT_16BITS(tptr+4)); printf("\n\t Device type [%s] (0x%02x)", tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)), *(tptr+6)); break; case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: printf("\n\t Application type [%s] (0x%02x)", tok2str(lldp_tia_application_type_values, "none", *(tptr+4)), *(tptr+4)); printf(", Flags [%s]", bittok2str( lldp_tia_network_policy_bits_values, "none", *(tptr+5))); printf("\n\t Vlan id %u", LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr+5))); printf(", L2 priority %u", LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr+6))); printf(", DSCP value %u", LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr+6))); break; case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: location_format = *(tptr+4); printf("\n\t Location data format %s (0x%02x)", tok2str(lldp_tia_location_data_format_values, "unknown", location_format), location_format); switch (location_format) { case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: printf("\n\t Latitude resolution %u, latitude value %" PRIu64, (*(tptr+5)>>2), lldp_extract_latlon(tptr+5)); printf("\n\t Longitude resolution %u, longitude value %" PRIu64, (*(tptr+10)>>2), lldp_extract_latlon(tptr+10)); printf("\n\t Altitude type %s (%u)", tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)), (*(tptr+15)>>4)); printf("\n\t Altitude resolution %u, altitude value 0x%x", (EXTRACT_16BITS(tptr+15)>>6)&0x3f, ((EXTRACT_32BITS(tptr+16)&0x3fffffff))); printf("\n\t Datum %s (0x%02x)", tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)), *(tptr+20)); break; case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: lci_len = *(tptr+5); printf("\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", lci_len, tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)), *(tptr+6)); /* Country code */ safeputs((const char *)(tptr+7), 2); lci_len = lci_len-3; tptr = tptr + 9; /* Decode each civic address element */ while (lci_len > 0) { ca_type = *(tptr); ca_len = *(tptr+1); tptr += 2; lci_len -= 2; printf("\n\t CA type \'%s\' (%u), length %u: ", tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), ca_type, ca_len); /* basic sanity check */ if ( ca_type == 0 || ca_len == 0) { return hexdump; } safeputs((const char *)tptr, ca_len); tptr += ca_len; lci_len -= ca_len; } break; case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: printf("\n\t ECS ELIN id "); safeputs((const char *)tptr+5, tlv_len-5); break; default: printf("\n\t Location ID "); print_unknown_data(tptr+5, "\n\t ", tlv_len-5); } break; case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: printf("\n\t Power type [%s]", (*(tptr+4)&0xC0>>6) ? "PD device" : "PSE device"); printf(", Power source [%s]", tok2str(lldp_tia_power_source_values, "none", (*(tptr+4)&0x30)>>4)); printf("\n\t Power priority [%s] (0x%02x)", tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f), *(tptr+4)&0x0f); power_val = EXTRACT_16BITS(tptr+5); if (power_val < LLDP_TIA_POWER_VAL_MAX) { printf(", Power %.1f Watts", ((float)power_val)/10); } else { printf(", Power %u (Reserved)", power_val); } break; case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: printf("\n\t %s ", tok2str(lldp_tia_inventory_values, "unknown", subtype)); safeputs((const char *)tptr+4, tlv_len-4); break; default: hexdump = TRUE; break; } return hexdump; } static char * lldp_network_addr_print(const u_char *tptr) { u_int8_t af; static char buf[BUFSIZE]; const char * (*pfunc)(const u_char *); af = *tptr; switch (af) { case AFNUM_INET: pfunc = getname; break; #ifdef INET6 case AFNUM_INET6: pfunc = getname6; break; #endif case AFNUM_802: pfunc = etheraddr_string; break; default: pfunc = NULL; break; } if (!pfunc) { snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", tok2str(af_values, "Unknown", af), af); } else { snprintf(buf, sizeof(buf), "AFI %s (%u): %s", tok2str(af_values, "Unknown", af), af, (*pfunc)(tptr+1)); } return buf; } static int lldp_mgmt_addr_tlv_print(const u_char *pptr, u_int len) { u_int8_t mgmt_addr_len, intf_num_subtype, oid_len; const u_char *tptr; u_int tlen; tlen = len; tptr = pptr; mgmt_addr_len = *tptr++; tlen--; if (tlen < mgmt_addr_len) { return 0; } printf("\n\t Management Address length %u, %s", mgmt_addr_len, lldp_network_addr_print(tptr)); tptr += mgmt_addr_len; tlen -= mgmt_addr_len; if (tlen < LLDP_INTF_NUM_LEN) { return 0; } intf_num_subtype = *tptr; printf("\n\t %s Interface Numbering (%u): %u", tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), intf_num_subtype, EXTRACT_32BITS(tptr+1)); tptr += LLDP_INTF_NUM_LEN; tlen -= LLDP_INTF_NUM_LEN; /* * The OID is optional. */ if (tlen) { oid_len = *tptr; if (oid_len) { printf("\n\t OID length %u", oid_len); safeputs((const char *)tptr+1, oid_len); } } return 1; } void lldp_print(register const u_char *pptr, register u_int len) { u_int8_t subtype; u_int16_t tlv, cap, ena_cap; u_int oui, tlen, hexdump, tlv_type, tlv_len; const u_char *tptr; tptr = pptr; tlen = len; if (vflag) { printf("LLDP, length %u", len); } while (tlen >= sizeof(tlv)) { TCHECK2(*tptr, sizeof(tlv)); tlv = EXTRACT_16BITS(tptr); tlv_type = LLDP_EXTRACT_TYPE(tlv); tlv_len = LLDP_EXTRACT_LEN(tlv); hexdump = FALSE; tlen -= sizeof(tlv); tptr += sizeof(tlv); if (vflag) { printf("\n\t%s TLV (%u), length %u", tok2str(lldp_tlv_values, "Unknown", tlv_type), tlv_type, tlv_len); } /* infinite loop check */ if (!tlv_type || !tlv_len) { break; } TCHECK2(*tptr, tlv_len); switch (tlv_type) { case LLDP_TTL_TLV: if (vflag) { printf(": TTL %us", EXTRACT_16BITS(tptr)); } break; case LLDP_SYSTEM_NAME_TLV: /* * The system name is also print in non-verbose mode * similar to the CDP printer. */ if (vflag) { printf(": "); safeputs((const char *)tptr, tlv_len); } else { printf("LLDP, name "); safeputs((const char *)tptr, tlv_len); printf(", length %u", len); } break; case LLDP_PORT_DESCR_TLV: if (vflag) { printf(": "); safeputs((const char *)tptr, tlv_len); } break; case LLDP_SYSTEM_DESCR_TLV: if (vflag) { printf("\n\t "); safeputs((const char *)tptr, tlv_len); } break; case LLDP_CHASSIS_ID_TLV: if (vflag) { subtype = *tptr; printf("\n\t Subtype %s (%u): ", tok2str(lldp_chassis_subtype_values, "Unknown", subtype), subtype); switch (subtype) { case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: printf("%s", etheraddr_string(tptr+1)); break; case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ case LLDP_CHASSIS_LOCAL_SUBTYPE: case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: case LLDP_CHASSIS_PORT_COMP_SUBTYPE: safeputs((const char *)tptr+1, tlv_len-1); break; case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: printf("%s", lldp_network_addr_print(tptr+1)); break; default: hexdump = TRUE; break; } } break; case LLDP_PORT_ID_TLV: if (vflag) { subtype = *tptr; printf("\n\t Subtype %s (%u): ", tok2str(lldp_port_subtype_values, "Unknown", subtype), subtype); switch (subtype) { case LLDP_PORT_MAC_ADDR_SUBTYPE: printf("%s", etheraddr_string(tptr+1)); break; case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */ case LLDP_PORT_LOCAL_SUBTYPE: case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: case LLDP_PORT_INTF_ALIAS_SUBTYPE: case LLDP_PORT_PORT_COMP_SUBTYPE: safeputs((const char *)tptr+1, tlv_len-1); break; case LLDP_PORT_NETWORK_ADDR_SUBTYPE: printf("%s", lldp_network_addr_print(tptr+1)); break; default: hexdump = TRUE; break; } } break; case LLDP_PRIVATE_TLV: if (vflag) { oui = EXTRACT_24BITS(tptr); printf(": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui); switch (oui) { case OUI_IEEE_8021_PRIVATE: hexdump = lldp_private_8021_print(tptr); break; case OUI_IEEE_8023_PRIVATE: hexdump = lldp_private_8023_print(tptr); break; case OUI_TIA: hexdump = lldp_private_tia_print(tptr, tlv_len); break; default: hexdump = TRUE; break; } } break; case LLDP_SYSTEM_CAP_TLV: if (vflag) { cap = EXTRACT_16BITS(tptr); ena_cap = EXTRACT_16BITS(tptr+2); printf("\n\t System Capabilities [%s] (0x%04x)", bittok2str(lldp_cap_values, "none", cap), cap); printf("\n\t Enabled Capabilities [%s] (0x%04x)", bittok2str(lldp_cap_values, "none", ena_cap), ena_cap); } break; case LLDP_MGMT_ADDR_TLV: if (vflag) { if (!lldp_mgmt_addr_tlv_print(tptr, tlen)) { goto trunc; } } break; default: hexdump = TRUE; break; } /* do we also want to see a hex dump ? */ if (vflag > 1 || (vflag && hexdump)) { print_unknown_data(tptr,"\n\t ", tlv_len); } tlen -= tlv_len; tptr += tlv_len; } return; trunc: printf("\n\t[|LLDP]"); } /* * Local Variables: * c-style: whitesmith * c-basic-offset: 4 * End: */