1 /* 2 * Copyright (c) 1998-2007 The TCPDUMP project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that: (1) source code 6 * distributions retain the above copyright notice and this paragraph 7 * in its entirety, and (2) distributions including binary code include 8 * the above copyright notice and this paragraph in its entirety in 9 * the documentation or other materials provided with the distribution. 10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND 11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 * FOR A PARTICULAR PURPOSE. 14 * 15 * Original code by Hannes Gredler (hannes@juniper.net) 16 * IEEE and TIA extensions by Carles Kishimoto <carles.kishimoto@gmail.com> 17 * DCBX extensions by Kaladhar Musunuru <kaladharm@sourceforge.net> 18 */ 19 20 /* \summary: IEEE 802.1ab Link Layer Discovery Protocol (LLDP) printer */ 21 22 #include <sys/cdefs.h> 23 #ifndef lint 24 __RCSID("$NetBSD: print-lldp.c,v 1.8 2017/02/05 04:05:05 spz Exp $"); 25 #endif 26 27 #ifdef HAVE_CONFIG_H 28 #include "config.h" 29 #endif 30 31 #include <netdissect-stdinc.h> 32 33 #include <stdio.h> 34 35 #include "netdissect.h" 36 #include "extract.h" 37 #include "addrtoname.h" 38 #include "af.h" 39 #include "oui.h" 40 41 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) 42 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) 43 44 /* 45 * TLV type codes 46 */ 47 #define LLDP_END_TLV 0 48 #define LLDP_CHASSIS_ID_TLV 1 49 #define LLDP_PORT_ID_TLV 2 50 #define LLDP_TTL_TLV 3 51 #define LLDP_PORT_DESCR_TLV 4 52 #define LLDP_SYSTEM_NAME_TLV 5 53 #define LLDP_SYSTEM_DESCR_TLV 6 54 #define LLDP_SYSTEM_CAP_TLV 7 55 #define LLDP_MGMT_ADDR_TLV 8 56 #define LLDP_PRIVATE_TLV 127 57 58 static const struct tok lldp_tlv_values[] = { 59 { LLDP_END_TLV, "End" }, 60 { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, 61 { LLDP_PORT_ID_TLV, "Port ID" }, 62 { LLDP_TTL_TLV, "Time to Live" }, 63 { LLDP_PORT_DESCR_TLV, "Port Description" }, 64 { LLDP_SYSTEM_NAME_TLV, "System Name" }, 65 { LLDP_SYSTEM_DESCR_TLV, "System Description" }, 66 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, 67 { LLDP_MGMT_ADDR_TLV, "Management Address" }, 68 { LLDP_PRIVATE_TLV, "Organization specific" }, 69 { 0, NULL} 70 }; 71 72 /* 73 * Chassis ID subtypes 74 */ 75 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 76 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 77 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 78 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 79 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 80 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 81 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 82 83 static const struct tok lldp_chassis_subtype_values[] = { 84 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, 85 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, 86 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, 87 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, 88 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, 89 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, 90 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, 91 { 0, NULL} 92 }; 93 94 /* 95 * Port ID subtypes 96 */ 97 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 98 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 99 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 100 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 101 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 102 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 103 #define LLDP_PORT_LOCAL_SUBTYPE 7 104 105 static const struct tok lldp_port_subtype_values[] = { 106 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, 107 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, 108 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, 109 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, 110 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, 111 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, 112 { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, 113 { 0, NULL} 114 }; 115 116 /* 117 * System Capabilities 118 */ 119 #define LLDP_CAP_OTHER (1 << 0) 120 #define LLDP_CAP_REPEATER (1 << 1) 121 #define LLDP_CAP_BRIDGE (1 << 2) 122 #define LLDP_CAP_WLAN_AP (1 << 3) 123 #define LLDP_CAP_ROUTER (1 << 4) 124 #define LLDP_CAP_PHONE (1 << 5) 125 #define LLDP_CAP_DOCSIS (1 << 6) 126 #define LLDP_CAP_STATION_ONLY (1 << 7) 127 128 static const struct tok lldp_cap_values[] = { 129 { LLDP_CAP_OTHER, "Other"}, 130 { LLDP_CAP_REPEATER, "Repeater"}, 131 { LLDP_CAP_BRIDGE, "Bridge"}, 132 { LLDP_CAP_WLAN_AP, "WLAN AP"}, 133 { LLDP_CAP_ROUTER, "Router"}, 134 { LLDP_CAP_PHONE, "Telephone"}, 135 { LLDP_CAP_DOCSIS, "Docsis"}, 136 { LLDP_CAP_STATION_ONLY, "Station Only"}, 137 { 0, NULL} 138 }; 139 140 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 141 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 142 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 143 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 144 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8 145 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9 146 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10 147 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11 148 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12 149 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13 150 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14 151 152 static const struct tok lldp_8021_subtype_values[] = { 153 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, 154 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, 155 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, 156 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, 157 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"}, 158 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"}, 159 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"}, 160 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"}, 161 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"}, 162 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"}, 163 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"}, 164 { 0, NULL} 165 }; 166 167 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1) 168 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2) 169 170 static const struct tok lldp_8021_port_protocol_id_values[] = { 171 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"}, 172 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"}, 173 { 0, NULL} 174 }; 175 176 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1 177 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2 178 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3 179 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4 180 181 static const struct tok lldp_8023_subtype_values[] = { 182 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"}, 183 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"}, 184 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"}, 185 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"}, 186 { 0, NULL} 187 }; 188 189 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1 190 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2 191 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3 192 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4 193 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5 194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6 195 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7 196 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8 197 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9 198 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10 199 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11 200 201 static const struct tok lldp_tia_subtype_values[] = { 202 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" }, 203 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" }, 204 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" }, 205 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" }, 206 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" }, 207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" }, 208 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" }, 209 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" }, 210 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" }, 211 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" }, 212 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" }, 213 { 0, NULL} 214 }; 215 216 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1 217 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2 218 219 static const struct tok lldp_tia_location_altitude_type_values[] = { 220 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"}, 221 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"}, 222 { 0, NULL} 223 }; 224 225 /* ANSI/TIA-1057 - Annex B */ 226 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1 227 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2 228 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3 229 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4 230 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5 231 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6 232 233 static const struct tok lldp_tia_location_lci_catype_values[] = { 234 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"}, 235 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"}, 236 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"}, 237 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"}, 238 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"}, 239 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"}, 240 { 0, NULL} 241 }; 242 243 static const struct tok lldp_tia_location_lci_what_values[] = { 244 { 0, "location of DHCP server"}, 245 { 1, "location of the network element believed to be closest to the client"}, 246 { 2, "location of the client"}, 247 { 0, NULL} 248 }; 249 250 /* 251 * From RFC 3636 - dot3MauType 252 */ 253 #define LLDP_MAU_TYPE_UNKNOWN 0 254 #define LLDP_MAU_TYPE_AUI 1 255 #define LLDP_MAU_TYPE_10BASE_5 2 256 #define LLDP_MAU_TYPE_FOIRL 3 257 #define LLDP_MAU_TYPE_10BASE_2 4 258 #define LLDP_MAU_TYPE_10BASE_T 5 259 #define LLDP_MAU_TYPE_10BASE_FP 6 260 #define LLDP_MAU_TYPE_10BASE_FB 7 261 #define LLDP_MAU_TYPE_10BASE_FL 8 262 #define LLDP_MAU_TYPE_10BROAD36 9 263 #define LLDP_MAU_TYPE_10BASE_T_HD 10 264 #define LLDP_MAU_TYPE_10BASE_T_FD 11 265 #define LLDP_MAU_TYPE_10BASE_FL_HD 12 266 #define LLDP_MAU_TYPE_10BASE_FL_FD 13 267 #define LLDP_MAU_TYPE_100BASE_T4 14 268 #define LLDP_MAU_TYPE_100BASE_TX_HD 15 269 #define LLDP_MAU_TYPE_100BASE_TX_FD 16 270 #define LLDP_MAU_TYPE_100BASE_FX_HD 17 271 #define LLDP_MAU_TYPE_100BASE_FX_FD 18 272 #define LLDP_MAU_TYPE_100BASE_T2_HD 19 273 #define LLDP_MAU_TYPE_100BASE_T2_FD 20 274 #define LLDP_MAU_TYPE_1000BASE_X_HD 21 275 #define LLDP_MAU_TYPE_1000BASE_X_FD 22 276 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23 277 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24 278 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25 279 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26 280 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27 281 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28 282 #define LLDP_MAU_TYPE_1000BASE_T_HD 29 283 #define LLDP_MAU_TYPE_1000BASE_T_FD 30 284 #define LLDP_MAU_TYPE_10GBASE_X 31 285 #define LLDP_MAU_TYPE_10GBASE_LX4 32 286 #define LLDP_MAU_TYPE_10GBASE_R 33 287 #define LLDP_MAU_TYPE_10GBASE_ER 34 288 #define LLDP_MAU_TYPE_10GBASE_LR 35 289 #define LLDP_MAU_TYPE_10GBASE_SR 36 290 #define LLDP_MAU_TYPE_10GBASE_W 37 291 #define LLDP_MAU_TYPE_10GBASE_EW 38 292 #define LLDP_MAU_TYPE_10GBASE_LW 39 293 #define LLDP_MAU_TYPE_10GBASE_SW 40 294 295 static const struct tok lldp_mau_types_values[] = { 296 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"}, 297 { LLDP_MAU_TYPE_AUI, "AUI"}, 298 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"}, 299 { LLDP_MAU_TYPE_FOIRL, "FOIRL"}, 300 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"}, 301 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"}, 302 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"}, 303 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"}, 304 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"}, 305 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"}, 306 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"}, 307 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"}, 308 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"}, 309 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"}, 310 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"}, 311 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"}, 312 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"}, 313 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"}, 314 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"}, 315 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"}, 316 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"}, 317 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"}, 318 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"}, 319 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"}, 320 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"}, 321 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"}, 322 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"}, 323 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"}, 324 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"}, 325 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"}, 326 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"}, 327 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"}, 328 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"}, 329 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"}, 330 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"}, 331 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"}, 332 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"}, 333 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"}, 334 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"}, 335 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"}, 336 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"}, 337 { 0, NULL} 338 }; 339 340 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0) 341 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1) 342 343 static const struct tok lldp_8023_autonegotiation_values[] = { 344 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"}, 345 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"}, 346 { 0, NULL} 347 }; 348 349 #define LLDP_TIA_CAPABILITY_MED (1 << 0) 350 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1) 351 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2) 352 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3) 353 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4) 354 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5) 355 356 static const struct tok lldp_tia_capabilities_values[] = { 357 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"}, 358 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"}, 359 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"}, 360 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"}, 361 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"}, 362 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"}, 363 { 0, NULL} 364 }; 365 366 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1 367 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2 368 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3 369 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4 370 371 static const struct tok lldp_tia_device_type_values[] = { 372 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"}, 373 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"}, 374 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"}, 375 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"}, 376 { 0, NULL} 377 }; 378 379 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1 380 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2 381 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3 382 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4 383 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5 384 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6 385 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7 386 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8 387 388 static const struct tok lldp_tia_application_type_values[] = { 389 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"}, 390 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"}, 391 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"}, 392 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"}, 393 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"}, 394 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"}, 395 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"}, 396 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"}, 397 { 0, NULL} 398 }; 399 400 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5) 401 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6) 402 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7) 403 404 static const struct tok lldp_tia_network_policy_bits_values[] = { 405 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"}, 406 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"}, 407 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"}, 408 { 0, NULL} 409 }; 410 411 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1) 412 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6) 413 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f) 414 415 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1 416 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2 417 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3 418 419 static const struct tok lldp_tia_location_data_format_values[] = { 420 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"}, 421 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"}, 422 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"}, 423 { 0, NULL} 424 }; 425 426 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1 427 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2 428 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3 429 430 static const struct tok lldp_tia_location_datum_type_values[] = { 431 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"}, 432 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"}, 433 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"}, 434 { 0, NULL} 435 }; 436 437 #define LLDP_TIA_POWER_SOURCE_PSE 1 438 #define LLDP_TIA_POWER_SOURCE_LOCAL 2 439 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3 440 441 static const struct tok lldp_tia_power_source_values[] = { 442 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"}, 443 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"}, 444 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"}, 445 { 0, NULL} 446 }; 447 448 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1 449 #define LLDP_TIA_POWER_PRIORITY_HIGH 2 450 #define LLDP_TIA_POWER_PRIORITY_LOW 3 451 452 static const struct tok lldp_tia_power_priority_values[] = { 453 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"}, 454 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"}, 455 { LLDP_TIA_POWER_PRIORITY_LOW, "low"}, 456 { 0, NULL} 457 }; 458 459 #define LLDP_TIA_POWER_VAL_MAX 1024 460 461 static const struct tok lldp_tia_inventory_values[] = { 462 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" }, 463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" }, 464 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" }, 465 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" }, 466 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" }, 467 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" }, 468 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" }, 469 { 0, NULL} 470 }; 471 472 /* 473 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits 474 */ 475 #define LLDP_MAU_PMD_OTHER (1 << 15) 476 #define LLDP_MAU_PMD_10BASE_T (1 << 14) 477 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13) 478 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12) 479 #define LLDP_MAU_PMD_100BASE_TX (1 << 11) 480 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10) 481 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9) 482 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8) 483 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7) 484 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6) 485 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5) 486 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4) 487 #define LLDP_MAU_PMD_1000BASE_X (1 << 3) 488 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2) 489 #define LLDP_MAU_PMD_1000BASE_T (1 << 1) 490 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0) 491 492 static const struct tok lldp_pmd_capability_values[] = { 493 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"}, 494 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"}, 495 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"}, 496 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"}, 497 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"}, 498 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"}, 499 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"}, 500 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"}, 501 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"}, 502 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"}, 503 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"}, 504 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"}, 505 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"}, 506 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"}, 507 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"}, 508 { 0, NULL} 509 }; 510 511 #define LLDP_MDI_PORT_CLASS (1 << 0) 512 #define LLDP_MDI_POWER_SUPPORT (1 << 1) 513 #define LLDP_MDI_POWER_STATE (1 << 2) 514 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3) 515 516 static const struct tok lldp_mdi_values[] = { 517 { LLDP_MDI_PORT_CLASS, "PSE"}, 518 { LLDP_MDI_POWER_SUPPORT, "supported"}, 519 { LLDP_MDI_POWER_STATE, "enabled"}, 520 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"}, 521 { 0, NULL} 522 }; 523 524 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1 525 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2 526 527 static const struct tok lldp_mdi_power_pairs_values[] = { 528 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"}, 529 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"}, 530 { 0, NULL} 531 }; 532 533 #define LLDP_MDI_POWER_CLASS0 1 534 #define LLDP_MDI_POWER_CLASS1 2 535 #define LLDP_MDI_POWER_CLASS2 3 536 #define LLDP_MDI_POWER_CLASS3 4 537 #define LLDP_MDI_POWER_CLASS4 5 538 539 static const struct tok lldp_mdi_power_class_values[] = { 540 { LLDP_MDI_POWER_CLASS0, "class0"}, 541 { LLDP_MDI_POWER_CLASS1, "class1"}, 542 { LLDP_MDI_POWER_CLASS2, "class2"}, 543 { LLDP_MDI_POWER_CLASS3, "class3"}, 544 { LLDP_MDI_POWER_CLASS4, "class4"}, 545 { 0, NULL} 546 }; 547 548 #define LLDP_AGGREGATION_CAPABILTIY (1 << 0) 549 #define LLDP_AGGREGATION_STATUS (1 << 1) 550 551 static const struct tok lldp_aggregation_values[] = { 552 { LLDP_AGGREGATION_CAPABILTIY, "supported"}, 553 { LLDP_AGGREGATION_STATUS, "enabled"}, 554 { 0, NULL} 555 }; 556 557 /* 558 * DCBX protocol subtypes. 559 */ 560 #define LLDP_DCBX_SUBTYPE_1 1 561 #define LLDP_DCBX_SUBTYPE_2 2 562 563 static const struct tok lldp_dcbx_subtype_values[] = { 564 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" }, 565 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" }, 566 { 0, NULL} 567 }; 568 569 #define LLDP_DCBX_CONTROL_TLV 1 570 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2 571 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3 572 #define LLDP_DCBX_APPLICATION_TLV 4 573 574 /* 575 * Interface numbering subtypes. 576 */ 577 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2 578 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3 579 580 static const struct tok lldp_intf_numb_subtype_values[] = { 581 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" }, 582 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" }, 583 { 0, NULL} 584 }; 585 586 #define LLDP_INTF_NUM_LEN 5 587 588 #define LLDP_EVB_MODE_NOT_SUPPORTED 0 589 #define LLDP_EVB_MODE_EVB_BRIDGE 1 590 #define LLDP_EVB_MODE_EVB_STATION 2 591 #define LLDP_EVB_MODE_RESERVED 3 592 593 static const struct tok lldp_evb_mode_values[]={ 594 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"}, 595 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"}, 596 { LLDP_EVB_MODE_EVB_STATION, "EVB Staion"}, 597 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"}, 598 }; 599 600 #define NO_OF_BITS 8 601 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6 602 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25 603 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25 604 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6 605 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5 606 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9 607 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8 608 609 #define LLDP_IANA_SUBTYPE_MUDURL 1 610 611 static const struct tok lldp_iana_subtype_values[] = { 612 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" }, 613 { 0, NULL } 614 }; 615 616 617 static void 618 print_ets_priority_assignment_table(netdissect_options *ndo, 619 const u_char *ptr) 620 { 621 ND_PRINT((ndo, "\n\t Priority Assignment Table")); 622 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 623 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 624 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4, 625 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f)); 626 } 627 628 static void 629 print_tc_bandwidth_table(netdissect_options *ndo, 630 const u_char *ptr) 631 { 632 ND_PRINT((ndo, "\n\t TC Bandwidth Table")); 633 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7")); 634 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 635 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 636 } 637 638 static void 639 print_tsa_assignment_table(netdissect_options *ndo, 640 const u_char *ptr) 641 { 642 ND_PRINT((ndo, "\n\t TSA Assignment Table")); 643 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7")); 644 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 645 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 646 } 647 648 /* 649 * Print IEEE 802.1 private extensions. (802.1AB annex E) 650 */ 651 static int 652 lldp_private_8021_print(netdissect_options *ndo, 653 const u_char *tptr, u_int tlv_len) 654 { 655 int subtype, hexdump = FALSE; 656 u_int sublen; 657 u_int tval; 658 uint8_t i; 659 660 if (tlv_len < 4) { 661 return hexdump; 662 } 663 subtype = *(tptr+3); 664 665 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 666 tok2str(lldp_8021_subtype_values, "unknown", subtype), 667 subtype)); 668 669 switch (subtype) { 670 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 671 if (tlv_len < 6) { 672 return hexdump; 673 } 674 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u", 675 EXTRACT_16BITS(tptr + 4))); 676 break; 677 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 678 if (tlv_len < 7) { 679 return hexdump; 680 } 681 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 682 EXTRACT_16BITS(tptr+5), 683 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)), 684 *(tptr + 4))); 685 break; 686 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 687 if (tlv_len < 6) { 688 return hexdump; 689 } 690 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4))); 691 if (tlv_len < 7) { 692 return hexdump; 693 } 694 sublen = *(tptr+6); 695 if (tlv_len < 7+sublen) { 696 return hexdump; 697 } 698 ND_PRINT((ndo, "\n\t vlan name: ")); 699 safeputs(ndo, tptr + 7, sublen); 700 break; 701 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 702 if (tlv_len < 5) { 703 return hexdump; 704 } 705 sublen = *(tptr+4); 706 if (tlv_len < 5+sublen) { 707 return hexdump; 708 } 709 ND_PRINT((ndo, "\n\t protocol identity: ")); 710 safeputs(ndo, tptr + 5, sublen); 711 break; 712 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 713 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 714 return hexdump; 715 } 716 tval=*(tptr+4); 717 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator")); 718 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 719 ND_PRINT((ndo, "\n\t Value : ")); 720 for(i=0;i<NO_OF_BITS;i++) 721 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 722 tval=*(tptr+5); 723 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator")); 724 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 725 ND_PRINT((ndo, "\n\t Value : ")); 726 for(i=0;i<NO_OF_BITS;i++) 727 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 728 break; 729 730 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 731 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 732 return hexdump; 733 } 734 tval=*(tptr+4); 735 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d", 736 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07)); 737 738 /*Print Priority Assignment Table*/ 739 print_ets_priority_assignment_table(ndo, tptr + 5); 740 741 /*Print TC Bandwidth Table*/ 742 print_tc_bandwidth_table(ndo, tptr + 9); 743 744 /* Print TSA Assignment Table */ 745 print_tsa_assignment_table(ndo, tptr + 17); 746 747 break; 748 749 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 750 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 751 return hexdump; 752 } 753 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 754 /*Print Priority Assignment Table */ 755 print_ets_priority_assignment_table(ndo, tptr + 5); 756 /*Print TC Bandwidth Table */ 757 print_tc_bandwidth_table(ndo, tptr + 9); 758 /* Print TSA Assignment Table */ 759 print_tsa_assignment_table(ndo, tptr + 17); 760 break; 761 762 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 763 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 764 return hexdump; 765 } 766 tval=*(tptr+4); 767 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ", 768 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f))); 769 ND_PRINT((ndo, "\n\t PFC Enable")); 770 tval=*(tptr+5); 771 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 772 ND_PRINT((ndo, "\n\t Value : ")); 773 for(i=0;i<NO_OF_BITS;i++) 774 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 775 break; 776 777 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 778 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 779 return hexdump; 780 } 781 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 782 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 783 return hexdump; 784 } 785 /* Length of Application Priority Table */ 786 sublen=tlv_len-5; 787 if(sublen%3!=0){ 788 return hexdump; 789 } 790 i=0; 791 ND_PRINT((ndo, "\n\t Application Priority Table")); 792 while(i<sublen) { 793 tval=*(tptr+i+5); 794 ND_PRINT((ndo, "\n\t Priority: %d, RES: %d, Sel: %d", 795 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07))); 796 ND_PRINT((ndo, "Protocol ID: %d", EXTRACT_16BITS(tptr + i + 5))); 797 i=i+3; 798 } 799 break; 800 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 801 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 802 return hexdump; 803 } 804 ND_PRINT((ndo, "\n\t EVB Bridge Status")); 805 tval=*(tptr+4); 806 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d", 807 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01)); 808 ND_PRINT((ndo, "\n\t EVB Station Status")); 809 tval=*(tptr+5); 810 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d", 811 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03)); 812 tval=*(tptr+6); 813 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f)); 814 tval=*(tptr+7); 815 ND_PRINT((ndo, "EVB Mode: %s [%d]", 816 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6)); 817 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f)); 818 tval=*(tptr+8); 819 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f)); 820 break; 821 822 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 823 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 824 return hexdump; 825 } 826 tval=*(tptr+4); 827 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ", 828 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01)); 829 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff)); 830 sublen=tlv_len-8; 831 if(sublen%3!=0) { 832 return hexdump; 833 } 834 i=0; 835 while(i<sublen) { 836 tval=EXTRACT_24BITS(tptr+i+8); 837 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d", 838 tval >> 12, tval & 0x000fff)); 839 i=i+3; 840 } 841 break; 842 843 default: 844 hexdump = TRUE; 845 break; 846 } 847 848 return hexdump; 849 } 850 851 /* 852 * Print IEEE 802.3 private extensions. (802.3bc) 853 */ 854 static int 855 lldp_private_8023_print(netdissect_options *ndo, 856 const u_char *tptr, u_int tlv_len) 857 { 858 int subtype, hexdump = FALSE; 859 860 if (tlv_len < 4) { 861 return hexdump; 862 } 863 subtype = *(tptr+3); 864 865 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 866 tok2str(lldp_8023_subtype_values, "unknown", subtype), 867 subtype)); 868 869 switch (subtype) { 870 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 871 if (tlv_len < 9) { 872 return hexdump; 873 } 874 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)", 875 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)), 876 *(tptr + 4))); 877 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)", 878 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)), 879 EXTRACT_16BITS(tptr + 5))); 880 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)", 881 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)), 882 EXTRACT_16BITS(tptr + 7))); 883 break; 884 885 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 886 if (tlv_len < 7) { 887 return hexdump; 888 } 889 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s", 890 bittok2str(lldp_mdi_values, "none", *(tptr+4)), 891 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)), 892 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6)))); 893 break; 894 895 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 896 if (tlv_len < 9) { 897 return hexdump; 898 } 899 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u", 900 bittok2str(lldp_aggregation_values, "none", *(tptr+4)), 901 EXTRACT_32BITS(tptr + 5))); 902 break; 903 904 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 905 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4))); 906 break; 907 908 default: 909 hexdump = TRUE; 910 break; 911 } 912 913 return hexdump; 914 } 915 916 /* 917 * Extract 34bits of latitude/longitude coordinates. 918 */ 919 static uint64_t 920 lldp_extract_latlon(const u_char *tptr) 921 { 922 uint64_t latlon; 923 924 latlon = *tptr & 0x3; 925 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1); 926 927 return latlon; 928 } 929 930 /* objects defined in IANA subtype 00 00 5e 931 * (right now there is only one) 932 */ 933 934 935 static int 936 lldp_private_iana_print(netdissect_options *ndo, 937 const u_char *tptr, u_int tlv_len) 938 { 939 int subtype, hexdump = FALSE; 940 941 if (tlv_len < 8) { 942 return hexdump; 943 } 944 subtype = *(tptr+3); 945 946 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 947 tok2str(lldp_iana_subtype_values, "unknown", subtype), 948 subtype)); 949 950 switch (subtype) { 951 case LLDP_IANA_SUBTYPE_MUDURL: 952 ND_PRINT((ndo, "\n\t MUD-URL=")); 953 (void)fn_printn(ndo, tptr+4, tlv_len-4, NULL); 954 break; 955 default: 956 hexdump=TRUE; 957 } 958 959 return hexdump; 960 } 961 962 963 964 /* 965 * Print private TIA extensions. 966 */ 967 static int 968 lldp_private_tia_print(netdissect_options *ndo, 969 const u_char *tptr, u_int tlv_len) 970 { 971 int subtype, hexdump = FALSE; 972 uint8_t location_format; 973 uint16_t power_val; 974 u_int lci_len; 975 uint8_t ca_type, ca_len; 976 977 if (tlv_len < 4) { 978 return hexdump; 979 } 980 subtype = *(tptr+3); 981 982 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 983 tok2str(lldp_tia_subtype_values, "unknown", subtype), 984 subtype)); 985 986 switch (subtype) { 987 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 988 if (tlv_len < 7) { 989 return hexdump; 990 } 991 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)", 992 bittok2str(lldp_tia_capabilities_values, "none", 993 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4))); 994 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)", 995 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)), 996 *(tptr + 6))); 997 break; 998 999 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 1000 if (tlv_len < 8) { 1001 return hexdump; 1002 } 1003 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)", 1004 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)), 1005 *(tptr + 4))); 1006 ND_PRINT((ndo, ", Flags [%s]", bittok2str( 1007 lldp_tia_network_policy_bits_values, "none", *(tptr + 5)))); 1008 ND_PRINT((ndo, "\n\t Vlan id %u", 1009 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5)))); 1010 ND_PRINT((ndo, ", L2 priority %u", 1011 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6)))); 1012 ND_PRINT((ndo, ", DSCP value %u", 1013 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6)))); 1014 break; 1015 1016 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 1017 if (tlv_len < 5) { 1018 return hexdump; 1019 } 1020 location_format = *(tptr+4); 1021 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)", 1022 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 1023 location_format)); 1024 1025 switch (location_format) { 1026 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 1027 if (tlv_len < 21) { 1028 return hexdump; 1029 } 1030 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64, 1031 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5))); 1032 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64, 1033 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10))); 1034 ND_PRINT((ndo, "\n\t Altitude type %s (%u)", 1035 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)), 1036 (*(tptr + 15) >> 4))); 1037 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x", 1038 (EXTRACT_16BITS(tptr+15)>>6)&0x3f, 1039 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff)))); 1040 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)", 1041 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)), 1042 *(tptr + 20))); 1043 break; 1044 1045 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1046 if (tlv_len < 6) { 1047 return hexdump; 1048 } 1049 lci_len = *(tptr+5); 1050 if (lci_len < 3) { 1051 return hexdump; 1052 } 1053 if (tlv_len < 7+lci_len) { 1054 return hexdump; 1055 } 1056 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1057 lci_len, 1058 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)), 1059 *(tptr + 6))); 1060 1061 /* Country code */ 1062 safeputs(ndo, tptr + 7, 2); 1063 1064 lci_len = lci_len-3; 1065 tptr = tptr + 9; 1066 1067 /* Decode each civic address element */ 1068 while (lci_len > 0) { 1069 if (lci_len < 2) { 1070 return hexdump; 1071 } 1072 ca_type = *(tptr); 1073 ca_len = *(tptr+1); 1074 1075 tptr += 2; 1076 lci_len -= 2; 1077 1078 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ", 1079 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1080 ca_type, ca_len)); 1081 1082 /* basic sanity check */ 1083 if ( ca_type == 0 || ca_len == 0) { 1084 return hexdump; 1085 } 1086 if (lci_len < ca_len) { 1087 return hexdump; 1088 } 1089 1090 safeputs(ndo, tptr, ca_len); 1091 tptr += ca_len; 1092 lci_len -= ca_len; 1093 } 1094 break; 1095 1096 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1097 ND_PRINT((ndo, "\n\t ECS ELIN id ")); 1098 safeputs(ndo, tptr + 5, tlv_len - 5); 1099 break; 1100 1101 default: 1102 ND_PRINT((ndo, "\n\t Location ID ")); 1103 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1104 } 1105 break; 1106 1107 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1108 if (tlv_len < 7) { 1109 return hexdump; 1110 } 1111 ND_PRINT((ndo, "\n\t Power type [%s]", 1112 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device")); 1113 ND_PRINT((ndo, ", Power source [%s]", 1114 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4))); 1115 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)", 1116 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f), 1117 *(tptr + 4) & 0x0f)); 1118 power_val = EXTRACT_16BITS(tptr+5); 1119 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1120 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10)); 1121 } else { 1122 ND_PRINT((ndo, ", Power %u (Reserved)", power_val)); 1123 } 1124 break; 1125 1126 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1127 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1128 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1129 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1130 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1131 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1132 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1133 ND_PRINT((ndo, "\n\t %s ", 1134 tok2str(lldp_tia_inventory_values, "unknown", subtype))); 1135 safeputs(ndo, tptr + 4, tlv_len - 4); 1136 break; 1137 1138 default: 1139 hexdump = TRUE; 1140 break; 1141 } 1142 1143 return hexdump; 1144 } 1145 1146 /* 1147 * Print DCBX Protocol fields (V 1.01). 1148 */ 1149 static int 1150 lldp_private_dcbx_print(netdissect_options *ndo, 1151 const u_char *pptr, u_int len) 1152 { 1153 int subtype, hexdump = FALSE; 1154 uint8_t tval; 1155 uint16_t tlv; 1156 uint32_t i, pgval, uval; 1157 u_int tlen, tlv_type, tlv_len; 1158 const u_char *tptr, *mptr; 1159 1160 if (len < 4) { 1161 return hexdump; 1162 } 1163 subtype = *(pptr+3); 1164 1165 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 1166 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1167 subtype)); 1168 1169 /* by passing old version */ 1170 if (subtype == LLDP_DCBX_SUBTYPE_1) 1171 return TRUE; 1172 1173 tptr = pptr + 4; 1174 tlen = len - 4; 1175 1176 while (tlen >= sizeof(tlv)) { 1177 1178 ND_TCHECK2(*tptr, sizeof(tlv)); 1179 1180 tlv = EXTRACT_16BITS(tptr); 1181 1182 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1183 tlv_len = LLDP_EXTRACT_LEN(tlv); 1184 hexdump = FALSE; 1185 1186 tlen -= sizeof(tlv); 1187 tptr += sizeof(tlv); 1188 1189 /* loop check */ 1190 if (!tlv_type || !tlv_len) { 1191 break; 1192 } 1193 1194 ND_TCHECK2(*tptr, tlv_len); 1195 if (tlen < tlv_len) { 1196 goto trunc; 1197 } 1198 1199 /* decode every tlv */ 1200 switch (tlv_type) { 1201 case LLDP_DCBX_CONTROL_TLV: 1202 if (tlv_len < 10) { 1203 goto trunc; 1204 } 1205 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)", 1206 LLDP_DCBX_CONTROL_TLV, tlv_len)); 1207 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1208 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1209 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2))); 1210 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d", 1211 EXTRACT_32BITS(tptr + 6))); 1212 break; 1213 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1214 if (tlv_len < 17) { 1215 goto trunc; 1216 } 1217 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)", 1218 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len)); 1219 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1220 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1221 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1222 tval = *(tptr+2); 1223 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1224 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1225 (tval & 0x20) ? 1 : 0)); 1226 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1227 ND_PRINT((ndo, "\n\t Priority Allocation")); 1228 1229 /* 1230 * Array of 8 4-bit priority group ID values; we fetch all 1231 * 32 bits and extract each nibble. 1232 */ 1233 pgval = EXTRACT_32BITS(tptr+4); 1234 for (i = 0; i <= 7; i++) { 1235 ND_PRINT((ndo, "\n\t PgId_%d: %d", 1236 i, (pgval >> (28 - 4 * i)) & 0xF)); 1237 } 1238 ND_PRINT((ndo, "\n\t Priority Group Allocation")); 1239 for (i = 0; i <= 7; i++) 1240 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i))); 1241 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8))); 1242 break; 1243 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1244 if (tlv_len < 6) { 1245 goto trunc; 1246 } 1247 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control")); 1248 ND_PRINT((ndo, " (type 0x%x, length %d)", 1249 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len)); 1250 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1251 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1252 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1253 tval = *(tptr+2); 1254 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1255 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1256 (tval & 0x20) ? 1 : 0)); 1257 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1258 tval = *(tptr+4); 1259 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4))); 1260 for (i = 0; i <= 7; i++) 1261 ND_PRINT((ndo, "\n\t Priority Bit %d: %s", 1262 i, (tval & (1 << i)) ? "Enabled" : "Disabled")); 1263 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5))); 1264 break; 1265 case LLDP_DCBX_APPLICATION_TLV: 1266 if (tlv_len < 4) { 1267 goto trunc; 1268 } 1269 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)", 1270 LLDP_DCBX_APPLICATION_TLV, tlv_len)); 1271 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1272 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1273 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1274 tval = *(tptr+2); 1275 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1276 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1277 (tval & 0x20) ? 1 : 0)); 1278 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1279 tval = tlv_len - 4; 1280 mptr = tptr + 4; 1281 while (tval >= 6) { 1282 ND_PRINT((ndo, "\n\t Application Value")); 1283 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x", 1284 EXTRACT_16BITS(mptr))); 1285 uval = EXTRACT_24BITS(mptr+2); 1286 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s", 1287 (uval >> 22), 1288 (uval >> 22) ? "Socket Number" : "L2 EtherType")); 1289 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff)); 1290 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5))); 1291 tval = tval - 6; 1292 mptr = mptr + 6; 1293 } 1294 break; 1295 default: 1296 hexdump = TRUE; 1297 break; 1298 } 1299 1300 /* do we also want to see a hex dump ? */ 1301 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1302 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1303 } 1304 1305 tlen -= tlv_len; 1306 tptr += tlv_len; 1307 } 1308 1309 trunc: 1310 return hexdump; 1311 } 1312 1313 static char * 1314 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1315 { 1316 uint8_t af; 1317 static char buf[BUFSIZE]; 1318 const char * (*pfunc)(netdissect_options *, const u_char *); 1319 1320 if (len < 1) 1321 return NULL; 1322 len--; 1323 af = *tptr; 1324 switch (af) { 1325 case AFNUM_INET: 1326 if (len < 4) 1327 return NULL; 1328 /* This cannot be assigned to ipaddr_string(), which is a macro. */ 1329 pfunc = getname; 1330 break; 1331 case AFNUM_INET6: 1332 if (len < 16) 1333 return NULL; 1334 /* This cannot be assigned to ip6addr_string(), which is a macro. */ 1335 pfunc = getname6; 1336 break; 1337 case AFNUM_802: 1338 if (len < 6) 1339 return NULL; 1340 pfunc = etheraddr_string; 1341 break; 1342 default: 1343 pfunc = NULL; 1344 break; 1345 } 1346 1347 if (!pfunc) { 1348 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1349 tok2str(af_values, "Unknown", af), af); 1350 } else { 1351 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1352 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1353 } 1354 1355 return buf; 1356 } 1357 1358 static int 1359 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1360 const u_char *pptr, u_int len) 1361 { 1362 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1363 const u_char *tptr; 1364 u_int tlen; 1365 char *mgmt_addr; 1366 1367 tlen = len; 1368 tptr = pptr; 1369 1370 if (tlen < 1) { 1371 return 0; 1372 } 1373 mgmt_addr_len = *tptr++; 1374 tlen--; 1375 1376 if (tlen < mgmt_addr_len) { 1377 return 0; 1378 } 1379 1380 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1381 if (mgmt_addr == NULL) { 1382 return 0; 1383 } 1384 ND_PRINT((ndo, "\n\t Management Address length %u, %s", 1385 mgmt_addr_len, mgmt_addr)); 1386 tptr += mgmt_addr_len; 1387 tlen -= mgmt_addr_len; 1388 1389 if (tlen < LLDP_INTF_NUM_LEN) { 1390 return 0; 1391 } 1392 1393 intf_num_subtype = *tptr; 1394 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u", 1395 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1396 intf_num_subtype, 1397 EXTRACT_32BITS(tptr + 1))); 1398 1399 tptr += LLDP_INTF_NUM_LEN; 1400 tlen -= LLDP_INTF_NUM_LEN; 1401 1402 /* 1403 * The OID is optional. 1404 */ 1405 if (tlen) { 1406 oid_len = *tptr; 1407 1408 if (tlen < oid_len) { 1409 return 0; 1410 } 1411 if (oid_len) { 1412 ND_PRINT((ndo, "\n\t OID length %u", oid_len)); 1413 safeputs(ndo, tptr + 1, oid_len); 1414 } 1415 } 1416 1417 return 1; 1418 } 1419 1420 void 1421 lldp_print(netdissect_options *ndo, 1422 register const u_char *pptr, register u_int len) 1423 { 1424 uint8_t subtype; 1425 uint16_t tlv, cap, ena_cap; 1426 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1427 const u_char *tptr; 1428 char *network_addr; 1429 1430 tptr = pptr; 1431 tlen = len; 1432 1433 ND_PRINT((ndo, "LLDP, length %u", len)); 1434 1435 while (tlen >= sizeof(tlv)) { 1436 1437 ND_TCHECK2(*tptr, sizeof(tlv)); 1438 1439 tlv = EXTRACT_16BITS(tptr); 1440 1441 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1442 tlv_len = LLDP_EXTRACT_LEN(tlv); 1443 hexdump = FALSE; 1444 1445 tlen -= sizeof(tlv); 1446 tptr += sizeof(tlv); 1447 1448 if (ndo->ndo_vflag) { 1449 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u", 1450 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1451 tlv_type, tlv_len)); 1452 } 1453 1454 /* infinite loop check */ 1455 if (!tlv_type || !tlv_len) { 1456 break; 1457 } 1458 1459 ND_TCHECK2(*tptr, tlv_len); 1460 if (tlen < tlv_len) { 1461 goto trunc; 1462 } 1463 1464 switch (tlv_type) { 1465 1466 case LLDP_CHASSIS_ID_TLV: 1467 if (ndo->ndo_vflag) { 1468 if (tlv_len < 2) { 1469 goto trunc; 1470 } 1471 subtype = *tptr; 1472 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1473 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1474 subtype)); 1475 1476 switch (subtype) { 1477 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1478 if (tlv_len < 1+6) { 1479 goto trunc; 1480 } 1481 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1482 break; 1483 1484 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1485 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1486 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1487 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1488 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1489 safeputs(ndo, tptr + 1, tlv_len - 1); 1490 break; 1491 1492 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1493 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1494 if (network_addr == NULL) { 1495 goto trunc; 1496 } 1497 ND_PRINT((ndo, "%s", network_addr)); 1498 break; 1499 1500 default: 1501 hexdump = TRUE; 1502 break; 1503 } 1504 } 1505 break; 1506 1507 case LLDP_PORT_ID_TLV: 1508 if (ndo->ndo_vflag) { 1509 if (tlv_len < 2) { 1510 goto trunc; 1511 } 1512 subtype = *tptr; 1513 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1514 tok2str(lldp_port_subtype_values, "Unknown", subtype), 1515 subtype)); 1516 1517 switch (subtype) { 1518 case LLDP_PORT_MAC_ADDR_SUBTYPE: 1519 if (tlv_len < 1+6) { 1520 goto trunc; 1521 } 1522 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1523 break; 1524 1525 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1526 case LLDP_PORT_LOCAL_SUBTYPE: 1527 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1528 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1529 case LLDP_PORT_PORT_COMP_SUBTYPE: 1530 safeputs(ndo, tptr + 1, tlv_len - 1); 1531 break; 1532 1533 case LLDP_PORT_NETWORK_ADDR_SUBTYPE: 1534 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1535 if (network_addr == NULL) { 1536 goto trunc; 1537 } 1538 ND_PRINT((ndo, "%s", network_addr)); 1539 break; 1540 1541 default: 1542 hexdump = TRUE; 1543 break; 1544 } 1545 } 1546 break; 1547 1548 case LLDP_TTL_TLV: 1549 if (ndo->ndo_vflag) { 1550 if (tlv_len < 2) { 1551 goto trunc; 1552 } 1553 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr))); 1554 } 1555 break; 1556 1557 case LLDP_PORT_DESCR_TLV: 1558 if (ndo->ndo_vflag) { 1559 ND_PRINT((ndo, ": ")); 1560 safeputs(ndo, tptr, tlv_len); 1561 } 1562 break; 1563 1564 case LLDP_SYSTEM_NAME_TLV: 1565 /* 1566 * The system name is also print in non-verbose mode 1567 * similar to the CDP printer. 1568 */ 1569 ND_PRINT((ndo, ": ")); 1570 safeputs(ndo, tptr, tlv_len); 1571 break; 1572 1573 case LLDP_SYSTEM_DESCR_TLV: 1574 if (ndo->ndo_vflag) { 1575 ND_PRINT((ndo, "\n\t ")); 1576 safeputs(ndo, tptr, tlv_len); 1577 } 1578 break; 1579 1580 case LLDP_SYSTEM_CAP_TLV: 1581 if (ndo->ndo_vflag) { 1582 /* 1583 * XXX - IEEE Std 802.1AB-2009 says the first octet 1584 * if a chassis ID subtype, with the system 1585 * capabilities and enabled capabilities following 1586 * it. 1587 */ 1588 if (tlv_len < 4) { 1589 goto trunc; 1590 } 1591 cap = EXTRACT_16BITS(tptr); 1592 ena_cap = EXTRACT_16BITS(tptr+2); 1593 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)", 1594 bittok2str(lldp_cap_values, "none", cap), cap)); 1595 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)", 1596 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap)); 1597 } 1598 break; 1599 1600 case LLDP_MGMT_ADDR_TLV: 1601 if (ndo->ndo_vflag) { 1602 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1603 goto trunc; 1604 } 1605 } 1606 break; 1607 1608 case LLDP_PRIVATE_TLV: 1609 if (ndo->ndo_vflag) { 1610 if (tlv_len < 3) { 1611 goto trunc; 1612 } 1613 oui = EXTRACT_24BITS(tptr); 1614 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui)); 1615 1616 switch (oui) { 1617 case OUI_IEEE_8021_PRIVATE: 1618 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1619 break; 1620 case OUI_IEEE_8023_PRIVATE: 1621 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1622 break; 1623 case OUI_IANA: 1624 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len); 1625 break; 1626 case OUI_TIA: 1627 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1628 break; 1629 case OUI_DCBX: 1630 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1631 break; 1632 default: 1633 hexdump = TRUE; 1634 break; 1635 } 1636 } 1637 break; 1638 1639 default: 1640 hexdump = TRUE; 1641 break; 1642 } 1643 1644 /* do we also want to see a hex dump ? */ 1645 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1646 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1647 } 1648 1649 tlen -= tlv_len; 1650 tptr += tlv_len; 1651 } 1652 return; 1653 trunc: 1654 ND_PRINT((ndo, "\n\t[|LLDP]")); 1655 } 1656 1657 /* 1658 * Local Variables: 1659 * c-style: whitesmith 1660 * c-basic-offset: 4 1661 * End: 1662 */ 1663