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 * support for the IEEE Link Discovery Protocol as per 802.1AB 16 * 17 * Original code by Hannes Gredler (hannes@juniper.net) 18 * IEEE and TIA extensions by Carles Kishimoto <carles.kishimoto@gmail.com> 19 * DCBX extensions by Kaladhar Musunuru <kaladharm@sourceforge.net> 20 */ 21 22 #include <sys/cdefs.h> 23 #ifndef lint 24 __RCSID("$NetBSD: print-lldp.c,v 1.6 2015/03/31 21:59:35 christos Exp $"); 25 #endif 26 27 #define NETDISSECT_REWORKED 28 #ifdef HAVE_CONFIG_H 29 #include "config.h" 30 #endif 31 32 #include <tcpdump-stdinc.h> 33 34 #include <stdio.h> 35 36 #include "interface.h" 37 #include "extract.h" 38 #include "addrtoname.h" 39 #include "af.h" 40 #include "oui.h" 41 42 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) 43 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) 44 45 /* 46 * TLV type codes 47 */ 48 #define LLDP_END_TLV 0 49 #define LLDP_CHASSIS_ID_TLV 1 50 #define LLDP_PORT_ID_TLV 2 51 #define LLDP_TTL_TLV 3 52 #define LLDP_PORT_DESCR_TLV 4 53 #define LLDP_SYSTEM_NAME_TLV 5 54 #define LLDP_SYSTEM_DESCR_TLV 6 55 #define LLDP_SYSTEM_CAP_TLV 7 56 #define LLDP_MGMT_ADDR_TLV 8 57 #define LLDP_PRIVATE_TLV 127 58 59 static const struct tok lldp_tlv_values[] = { 60 { LLDP_END_TLV, "End" }, 61 { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, 62 { LLDP_PORT_ID_TLV, "Port ID" }, 63 { LLDP_TTL_TLV, "Time to Live" }, 64 { LLDP_PORT_DESCR_TLV, "Port Description" }, 65 { LLDP_SYSTEM_NAME_TLV, "System Name" }, 66 { LLDP_SYSTEM_DESCR_TLV, "System Description" }, 67 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, 68 { LLDP_MGMT_ADDR_TLV, "Management Address" }, 69 { LLDP_PRIVATE_TLV, "Organization specific" }, 70 { 0, NULL} 71 }; 72 73 /* 74 * Chassis ID subtypes 75 */ 76 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 77 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 78 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 79 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 80 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 81 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 82 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 83 84 static const struct tok lldp_chassis_subtype_values[] = { 85 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, 86 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, 87 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, 88 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, 89 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, 90 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, 91 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, 92 { 0, NULL} 93 }; 94 95 /* 96 * Port ID subtypes 97 */ 98 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 99 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 100 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 101 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 102 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 103 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 104 #define LLDP_PORT_LOCAL_SUBTYPE 7 105 106 static const struct tok lldp_port_subtype_values[] = { 107 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, 108 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, 109 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, 110 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, 111 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, 112 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, 113 { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, 114 { 0, NULL} 115 }; 116 117 /* 118 * System Capabilities 119 */ 120 #define LLDP_CAP_OTHER (1 << 0) 121 #define LLDP_CAP_REPEATER (1 << 1) 122 #define LLDP_CAP_BRIDGE (1 << 2) 123 #define LLDP_CAP_WLAN_AP (1 << 3) 124 #define LLDP_CAP_ROUTER (1 << 4) 125 #define LLDP_CAP_PHONE (1 << 5) 126 #define LLDP_CAP_DOCSIS (1 << 6) 127 #define LLDP_CAP_STATION_ONLY (1 << 7) 128 129 static const struct tok lldp_cap_values[] = { 130 { LLDP_CAP_OTHER, "Other"}, 131 { LLDP_CAP_REPEATER, "Repeater"}, 132 { LLDP_CAP_BRIDGE, "Bridge"}, 133 { LLDP_CAP_WLAN_AP, "WLAN AP"}, 134 { LLDP_CAP_ROUTER, "Router"}, 135 { LLDP_CAP_PHONE, "Telephone"}, 136 { LLDP_CAP_DOCSIS, "Docsis"}, 137 { LLDP_CAP_STATION_ONLY, "Station Only"}, 138 { 0, NULL} 139 }; 140 141 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 142 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 143 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 144 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 145 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8 146 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9 147 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10 148 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11 149 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12 150 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13 151 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14 152 153 static const struct tok lldp_8021_subtype_values[] = { 154 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, 155 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, 156 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, 157 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, 158 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"}, 159 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"}, 160 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"}, 161 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"}, 162 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"}, 163 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"}, 164 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"}, 165 { 0, NULL} 166 }; 167 168 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1) 169 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2) 170 171 static const struct tok lldp_8021_port_protocol_id_values[] = { 172 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"}, 173 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"}, 174 { 0, NULL} 175 }; 176 177 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1 178 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2 179 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3 180 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4 181 182 static const struct tok lldp_8023_subtype_values[] = { 183 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"}, 184 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"}, 185 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"}, 186 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"}, 187 { 0, NULL} 188 }; 189 190 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1 191 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2 192 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3 193 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4 194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5 195 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6 196 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7 197 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8 198 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9 199 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10 200 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11 201 202 static const struct tok lldp_tia_subtype_values[] = { 203 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" }, 204 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" }, 205 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" }, 206 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" }, 207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" }, 208 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" }, 209 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" }, 210 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" }, 211 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" }, 212 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" }, 213 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" }, 214 { 0, NULL} 215 }; 216 217 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1 218 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2 219 220 static const struct tok lldp_tia_location_altitude_type_values[] = { 221 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"}, 222 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"}, 223 { 0, NULL} 224 }; 225 226 /* ANSI/TIA-1057 - Annex B */ 227 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1 228 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2 229 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3 230 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4 231 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5 232 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6 233 234 static const struct tok lldp_tia_location_lci_catype_values[] = { 235 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"}, 236 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"}, 237 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"}, 238 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"}, 239 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"}, 240 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"}, 241 { 0, NULL} 242 }; 243 244 static const struct tok lldp_tia_location_lci_what_values[] = { 245 { 0, "location of DHCP server"}, 246 { 1, "location of the network element believed to be closest to the client"}, 247 { 2, "location of the client"}, 248 { 0, NULL} 249 }; 250 251 /* 252 * From RFC 3636 - dot3MauType 253 */ 254 #define LLDP_MAU_TYPE_UNKNOWN 0 255 #define LLDP_MAU_TYPE_AUI 1 256 #define LLDP_MAU_TYPE_10BASE_5 2 257 #define LLDP_MAU_TYPE_FOIRL 3 258 #define LLDP_MAU_TYPE_10BASE_2 4 259 #define LLDP_MAU_TYPE_10BASE_T 5 260 #define LLDP_MAU_TYPE_10BASE_FP 6 261 #define LLDP_MAU_TYPE_10BASE_FB 7 262 #define LLDP_MAU_TYPE_10BASE_FL 8 263 #define LLDP_MAU_TYPE_10BROAD36 9 264 #define LLDP_MAU_TYPE_10BASE_T_HD 10 265 #define LLDP_MAU_TYPE_10BASE_T_FD 11 266 #define LLDP_MAU_TYPE_10BASE_FL_HD 12 267 #define LLDP_MAU_TYPE_10BASE_FL_FD 13 268 #define LLDP_MAU_TYPE_100BASE_T4 14 269 #define LLDP_MAU_TYPE_100BASE_TX_HD 15 270 #define LLDP_MAU_TYPE_100BASE_TX_FD 16 271 #define LLDP_MAU_TYPE_100BASE_FX_HD 17 272 #define LLDP_MAU_TYPE_100BASE_FX_FD 18 273 #define LLDP_MAU_TYPE_100BASE_T2_HD 19 274 #define LLDP_MAU_TYPE_100BASE_T2_FD 20 275 #define LLDP_MAU_TYPE_1000BASE_X_HD 21 276 #define LLDP_MAU_TYPE_1000BASE_X_FD 22 277 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23 278 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24 279 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25 280 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26 281 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27 282 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28 283 #define LLDP_MAU_TYPE_1000BASE_T_HD 29 284 #define LLDP_MAU_TYPE_1000BASE_T_FD 30 285 #define LLDP_MAU_TYPE_10GBASE_X 31 286 #define LLDP_MAU_TYPE_10GBASE_LX4 32 287 #define LLDP_MAU_TYPE_10GBASE_R 33 288 #define LLDP_MAU_TYPE_10GBASE_ER 34 289 #define LLDP_MAU_TYPE_10GBASE_LR 35 290 #define LLDP_MAU_TYPE_10GBASE_SR 36 291 #define LLDP_MAU_TYPE_10GBASE_W 37 292 #define LLDP_MAU_TYPE_10GBASE_EW 38 293 #define LLDP_MAU_TYPE_10GBASE_LW 39 294 #define LLDP_MAU_TYPE_10GBASE_SW 40 295 296 static const struct tok lldp_mau_types_values[] = { 297 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"}, 298 { LLDP_MAU_TYPE_AUI, "AUI"}, 299 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"}, 300 { LLDP_MAU_TYPE_FOIRL, "FOIRL"}, 301 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"}, 302 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"}, 303 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"}, 304 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"}, 305 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"}, 306 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"}, 307 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"}, 308 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"}, 309 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"}, 310 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"}, 311 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"}, 312 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"}, 313 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"}, 314 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"}, 315 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"}, 316 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"}, 317 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"}, 318 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"}, 319 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"}, 320 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"}, 321 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"}, 322 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"}, 323 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"}, 324 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"}, 325 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"}, 326 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"}, 327 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"}, 328 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"}, 329 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"}, 330 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"}, 331 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"}, 332 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"}, 333 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"}, 334 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"}, 335 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"}, 336 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"}, 337 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"}, 338 { 0, NULL} 339 }; 340 341 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0) 342 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1) 343 344 static const struct tok lldp_8023_autonegotiation_values[] = { 345 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"}, 346 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"}, 347 { 0, NULL} 348 }; 349 350 #define LLDP_TIA_CAPABILITY_MED (1 << 0) 351 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1) 352 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2) 353 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3) 354 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4) 355 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5) 356 357 static const struct tok lldp_tia_capabilities_values[] = { 358 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"}, 359 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"}, 360 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"}, 361 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"}, 362 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"}, 363 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"}, 364 { 0, NULL} 365 }; 366 367 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1 368 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2 369 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3 370 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4 371 372 static const struct tok lldp_tia_device_type_values[] = { 373 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"}, 374 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"}, 375 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"}, 376 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"}, 377 { 0, NULL} 378 }; 379 380 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1 381 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2 382 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3 383 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4 384 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5 385 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6 386 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7 387 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8 388 389 static const struct tok lldp_tia_application_type_values[] = { 390 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"}, 391 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"}, 392 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"}, 393 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"}, 394 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"}, 395 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"}, 396 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"}, 397 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"}, 398 { 0, NULL} 399 }; 400 401 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5) 402 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6) 403 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7) 404 405 static const struct tok lldp_tia_network_policy_bits_values[] = { 406 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"}, 407 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"}, 408 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"}, 409 { 0, NULL} 410 }; 411 412 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1) 413 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6) 414 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f) 415 416 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1 417 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2 418 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3 419 420 static const struct tok lldp_tia_location_data_format_values[] = { 421 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"}, 422 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"}, 423 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"}, 424 { 0, NULL} 425 }; 426 427 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1 428 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2 429 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3 430 431 static const struct tok lldp_tia_location_datum_type_values[] = { 432 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"}, 433 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"}, 434 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"}, 435 { 0, NULL} 436 }; 437 438 #define LLDP_TIA_POWER_SOURCE_PSE 1 439 #define LLDP_TIA_POWER_SOURCE_LOCAL 2 440 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3 441 442 static const struct tok lldp_tia_power_source_values[] = { 443 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"}, 444 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"}, 445 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"}, 446 { 0, NULL} 447 }; 448 449 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1 450 #define LLDP_TIA_POWER_PRIORITY_HIGH 2 451 #define LLDP_TIA_POWER_PRIORITY_LOW 3 452 453 static const struct tok lldp_tia_power_priority_values[] = { 454 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"}, 455 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"}, 456 { LLDP_TIA_POWER_PRIORITY_LOW, "low"}, 457 { 0, NULL} 458 }; 459 460 #define LLDP_TIA_POWER_VAL_MAX 1024 461 462 static const struct tok lldp_tia_inventory_values[] = { 463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" }, 464 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" }, 465 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" }, 466 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" }, 467 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" }, 468 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" }, 469 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" }, 470 { 0, NULL} 471 }; 472 473 /* 474 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits 475 */ 476 #define LLDP_MAU_PMD_OTHER (1 << 15) 477 #define LLDP_MAU_PMD_10BASE_T (1 << 14) 478 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13) 479 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12) 480 #define LLDP_MAU_PMD_100BASE_TX (1 << 11) 481 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10) 482 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9) 483 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8) 484 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7) 485 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6) 486 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5) 487 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4) 488 #define LLDP_MAU_PMD_1000BASE_X (1 << 3) 489 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2) 490 #define LLDP_MAU_PMD_1000BASE_T (1 << 1) 491 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0) 492 493 static const struct tok lldp_pmd_capability_values[] = { 494 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"}, 495 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"}, 496 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"}, 497 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"}, 498 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"}, 499 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"}, 500 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"}, 501 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"}, 502 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"}, 503 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"}, 504 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"}, 505 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"}, 506 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"}, 507 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"}, 508 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"}, 509 { 0, NULL} 510 }; 511 512 #define LLDP_MDI_PORT_CLASS (1 << 0) 513 #define LLDP_MDI_POWER_SUPPORT (1 << 1) 514 #define LLDP_MDI_POWER_STATE (1 << 2) 515 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3) 516 517 static const struct tok lldp_mdi_values[] = { 518 { LLDP_MDI_PORT_CLASS, "PSE"}, 519 { LLDP_MDI_POWER_SUPPORT, "supported"}, 520 { LLDP_MDI_POWER_STATE, "enabled"}, 521 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"}, 522 { 0, NULL} 523 }; 524 525 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1 526 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2 527 528 static const struct tok lldp_mdi_power_pairs_values[] = { 529 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"}, 530 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"}, 531 { 0, NULL} 532 }; 533 534 #define LLDP_MDI_POWER_CLASS0 1 535 #define LLDP_MDI_POWER_CLASS1 2 536 #define LLDP_MDI_POWER_CLASS2 3 537 #define LLDP_MDI_POWER_CLASS3 4 538 #define LLDP_MDI_POWER_CLASS4 5 539 540 static const struct tok lldp_mdi_power_class_values[] = { 541 { LLDP_MDI_POWER_CLASS0, "class0"}, 542 { LLDP_MDI_POWER_CLASS1, "class1"}, 543 { LLDP_MDI_POWER_CLASS2, "class2"}, 544 { LLDP_MDI_POWER_CLASS3, "class3"}, 545 { LLDP_MDI_POWER_CLASS4, "class4"}, 546 { 0, NULL} 547 }; 548 549 #define LLDP_AGGREGATION_CAPABILTIY (1 << 0) 550 #define LLDP_AGGREGATION_STATUS (1 << 1) 551 552 static const struct tok lldp_aggregation_values[] = { 553 { LLDP_AGGREGATION_CAPABILTIY, "supported"}, 554 { LLDP_AGGREGATION_STATUS, "enabled"}, 555 { 0, NULL} 556 }; 557 558 /* 559 * DCBX protocol subtypes. 560 */ 561 #define LLDP_DCBX_SUBTYPE_1 1 562 #define LLDP_DCBX_SUBTYPE_2 2 563 564 static const struct tok lldp_dcbx_subtype_values[] = { 565 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" }, 566 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" }, 567 { 0, NULL} 568 }; 569 570 #define LLDP_DCBX_CONTROL_TLV 1 571 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2 572 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3 573 #define LLDP_DCBX_APPLICATION_TLV 4 574 575 /* 576 * Interface numbering subtypes. 577 */ 578 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2 579 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3 580 581 static const struct tok lldp_intf_numb_subtype_values[] = { 582 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" }, 583 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" }, 584 { 0, NULL} 585 }; 586 587 #define LLDP_INTF_NUM_LEN 5 588 589 #define LLDP_EVB_MODE_NOT_SUPPORTED 0 590 #define LLDP_EVB_MODE_EVB_BRIDGE 1 591 #define LLDP_EVB_MODE_EVB_STATION 2 592 #define LLDP_EVB_MODE_RESERVED 3 593 594 static const struct tok lldp_evb_mode_values[]={ 595 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"}, 596 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"}, 597 { LLDP_EVB_MODE_EVB_STATION, "EVB Staion"}, 598 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"}, 599 }; 600 601 #define NO_OF_BITS 8 602 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6 603 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25 604 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25 605 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6 606 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5 607 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9 608 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8 609 610 static void 611 print_ets_priority_assignment_table(netdissect_options *ndo, 612 const u_char *ptr) 613 { 614 ND_PRINT((ndo, "\n\t Priority Assignment Table")); 615 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 616 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 617 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4, 618 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f)); 619 } 620 621 static void 622 print_tc_bandwidth_table(netdissect_options *ndo, 623 const u_char *ptr) 624 { 625 ND_PRINT((ndo, "\n\t TC Bandwidth Table")); 626 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7")); 627 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 628 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 629 } 630 631 static void 632 print_tsa_assignment_table(netdissect_options *ndo, 633 const u_char *ptr) 634 { 635 ND_PRINT((ndo, "\n\t TSA Assignment Table")); 636 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7")); 637 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 638 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 639 } 640 641 /* 642 * Print IEEE 802.1 private extensions. (802.1AB annex E) 643 */ 644 static int 645 lldp_private_8021_print(netdissect_options *ndo, 646 const u_char *tptr, u_int tlv_len) 647 { 648 int subtype, hexdump = FALSE; 649 u_int sublen; 650 u_int tval; 651 uint8_t i; 652 653 if (tlv_len < 4) { 654 return hexdump; 655 } 656 subtype = *(tptr+3); 657 658 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 659 tok2str(lldp_8021_subtype_values, "unknown", subtype), 660 subtype)); 661 662 switch (subtype) { 663 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 664 if (tlv_len < 6) { 665 return hexdump; 666 } 667 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u", 668 EXTRACT_16BITS(tptr + 4))); 669 break; 670 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 671 if (tlv_len < 7) { 672 return hexdump; 673 } 674 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 675 EXTRACT_16BITS(tptr+5), 676 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)), 677 *(tptr + 4))); 678 break; 679 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 680 if (tlv_len < 6) { 681 return hexdump; 682 } 683 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4))); 684 if (tlv_len < 7) { 685 return hexdump; 686 } 687 sublen = *(tptr+6); 688 if (tlv_len < 7+sublen) { 689 return hexdump; 690 } 691 ND_PRINT((ndo, "\n\t vlan name: ")); 692 safeputs(ndo, tptr + 7, sublen); 693 break; 694 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 695 if (tlv_len < 5) { 696 return hexdump; 697 } 698 sublen = *(tptr+4); 699 if (tlv_len < 5+sublen) { 700 return hexdump; 701 } 702 ND_PRINT((ndo, "\n\t protocol identity: ")); 703 safeputs(ndo, tptr + 5, sublen); 704 break; 705 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 706 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 707 return hexdump; 708 } 709 tval=*(tptr+4); 710 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator")); 711 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 712 ND_PRINT((ndo, "\n\t Value : ")); 713 for(i=0;i<NO_OF_BITS;i++) 714 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 715 tval=*(tptr+5); 716 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator")); 717 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 718 ND_PRINT((ndo, "\n\t Value : ")); 719 for(i=0;i<NO_OF_BITS;i++) 720 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 721 break; 722 723 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 724 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 725 return hexdump; 726 } 727 tval=*(tptr+4); 728 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d", 729 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07)); 730 731 /*Print Priority Assignment Table*/ 732 print_ets_priority_assignment_table(ndo, tptr + 5); 733 734 /*Print TC Bandwidth Table*/ 735 print_tc_bandwidth_table(ndo, tptr + 9); 736 737 /* Print TSA Assignment Table */ 738 print_tsa_assignment_table(ndo, tptr + 17); 739 740 break; 741 742 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 743 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 744 return hexdump; 745 } 746 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 747 /*Print Priority Assignment Table */ 748 print_ets_priority_assignment_table(ndo, tptr + 5); 749 /*Print TC Bandwidth Table */ 750 print_tc_bandwidth_table(ndo, tptr + 9); 751 /* Print TSA Assignment Table */ 752 print_tsa_assignment_table(ndo, tptr + 17); 753 break; 754 755 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 756 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 757 return hexdump; 758 } 759 tval=*(tptr+4); 760 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ", 761 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f))); 762 ND_PRINT((ndo, "\n\t PFC Enable")); 763 tval=*(tptr+5); 764 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 765 ND_PRINT((ndo, "\n\t Value : ")); 766 for(i=0;i<NO_OF_BITS;i++) 767 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 768 break; 769 770 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 771 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 772 return hexdump; 773 } 774 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 775 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 776 return hexdump; 777 } 778 /* Length of Application Priority Table */ 779 sublen=tlv_len-5; 780 if(sublen%3!=0){ 781 return hexdump; 782 } 783 i=0; 784 ND_PRINT((ndo, "\n\t Application Priority Table")); 785 while(i<sublen) { 786 tval=*(tptr+i+5); 787 ND_PRINT((ndo, "\n\t Priority: %d, RES: %d, Sel: %d", 788 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07))); 789 ND_PRINT((ndo, "Protocol ID: %d", EXTRACT_16BITS(tptr + i + 5))); 790 i=i+3; 791 } 792 break; 793 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 794 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 795 return hexdump; 796 } 797 ND_PRINT((ndo, "\n\t EVB Bridge Status")); 798 tval=*(tptr+4); 799 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d", 800 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01)); 801 ND_PRINT((ndo, "\n\t EVB Station Status")); 802 tval=*(tptr+5); 803 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d", 804 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03)); 805 tval=*(tptr+6); 806 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f)); 807 tval=*(tptr+7); 808 ND_PRINT((ndo, "EVB Mode: %s [%d]", 809 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6)); 810 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f)); 811 tval=*(tptr+8); 812 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f)); 813 break; 814 815 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 816 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 817 return hexdump; 818 } 819 tval=*(tptr+4); 820 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ", 821 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01)); 822 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff)); 823 sublen=tlv_len-8; 824 if(sublen%3!=0) { 825 return hexdump; 826 } 827 i=0; 828 while(i<sublen) { 829 tval=EXTRACT_24BITS(tptr+i+8); 830 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d", 831 tval >> 12, tval & 0x000fff)); 832 i=i+3; 833 } 834 break; 835 836 default: 837 hexdump = TRUE; 838 break; 839 } 840 841 return hexdump; 842 } 843 844 /* 845 * Print IEEE 802.3 private extensions. (802.3bc) 846 */ 847 static int 848 lldp_private_8023_print(netdissect_options *ndo, 849 const u_char *tptr, u_int tlv_len) 850 { 851 int subtype, hexdump = FALSE; 852 853 if (tlv_len < 4) { 854 return hexdump; 855 } 856 subtype = *(tptr+3); 857 858 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 859 tok2str(lldp_8023_subtype_values, "unknown", subtype), 860 subtype)); 861 862 switch (subtype) { 863 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 864 if (tlv_len < 9) { 865 return hexdump; 866 } 867 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)", 868 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)), 869 *(tptr + 4))); 870 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)", 871 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)), 872 EXTRACT_16BITS(tptr + 5))); 873 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)", 874 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)), 875 EXTRACT_16BITS(tptr + 7))); 876 break; 877 878 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 879 if (tlv_len < 7) { 880 return hexdump; 881 } 882 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s", 883 bittok2str(lldp_mdi_values, "none", *(tptr+4)), 884 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)), 885 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6)))); 886 break; 887 888 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 889 if (tlv_len < 9) { 890 return hexdump; 891 } 892 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u", 893 bittok2str(lldp_aggregation_values, "none", *(tptr+4)), 894 EXTRACT_32BITS(tptr + 5))); 895 break; 896 897 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 898 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4))); 899 break; 900 901 default: 902 hexdump = TRUE; 903 break; 904 } 905 906 return hexdump; 907 } 908 909 /* 910 * Extract 34bits of latitude/longitude coordinates. 911 */ 912 static uint64_t 913 lldp_extract_latlon(const u_char *tptr) 914 { 915 uint64_t latlon; 916 917 latlon = *tptr & 0x3; 918 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1); 919 920 return latlon; 921 } 922 923 /* 924 * Print private TIA extensions. 925 */ 926 static int 927 lldp_private_tia_print(netdissect_options *ndo, 928 const u_char *tptr, u_int tlv_len) 929 { 930 int subtype, hexdump = FALSE; 931 uint8_t location_format; 932 uint16_t power_val; 933 u_int lci_len; 934 uint8_t ca_type, ca_len; 935 936 if (tlv_len < 4) { 937 return hexdump; 938 } 939 subtype = *(tptr+3); 940 941 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 942 tok2str(lldp_tia_subtype_values, "unknown", subtype), 943 subtype)); 944 945 switch (subtype) { 946 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 947 if (tlv_len < 7) { 948 return hexdump; 949 } 950 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)", 951 bittok2str(lldp_tia_capabilities_values, "none", 952 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4))); 953 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)", 954 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)), 955 *(tptr + 6))); 956 break; 957 958 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 959 if (tlv_len < 8) { 960 return hexdump; 961 } 962 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)", 963 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)), 964 *(tptr + 4))); 965 ND_PRINT((ndo, ", Flags [%s]", bittok2str( 966 lldp_tia_network_policy_bits_values, "none", *(tptr + 5)))); 967 ND_PRINT((ndo, "\n\t Vlan id %u", 968 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5)))); 969 ND_PRINT((ndo, ", L2 priority %u", 970 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6)))); 971 ND_PRINT((ndo, ", DSCP value %u", 972 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6)))); 973 break; 974 975 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 976 if (tlv_len < 5) { 977 return hexdump; 978 } 979 location_format = *(tptr+4); 980 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)", 981 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 982 location_format)); 983 984 switch (location_format) { 985 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 986 if (tlv_len < 21) { 987 return hexdump; 988 } 989 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64, 990 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5))); 991 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64, 992 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10))); 993 ND_PRINT((ndo, "\n\t Altitude type %s (%u)", 994 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)), 995 (*(tptr + 15) >> 4))); 996 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x", 997 (EXTRACT_16BITS(tptr+15)>>6)&0x3f, 998 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff)))); 999 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)", 1000 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)), 1001 *(tptr + 20))); 1002 break; 1003 1004 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1005 if (tlv_len < 6) { 1006 return hexdump; 1007 } 1008 lci_len = *(tptr+5); 1009 if (lci_len < 3) { 1010 return hexdump; 1011 } 1012 if (tlv_len < 7+lci_len) { 1013 return hexdump; 1014 } 1015 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1016 lci_len, 1017 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)), 1018 *(tptr + 6))); 1019 1020 /* Country code */ 1021 safeputs(ndo, tptr + 7, 2); 1022 1023 lci_len = lci_len-3; 1024 tptr = tptr + 9; 1025 1026 /* Decode each civic address element */ 1027 while (lci_len > 0) { 1028 if (lci_len < 2) { 1029 return hexdump; 1030 } 1031 ca_type = *(tptr); 1032 ca_len = *(tptr+1); 1033 1034 tptr += 2; 1035 lci_len -= 2; 1036 1037 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ", 1038 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1039 ca_type, ca_len)); 1040 1041 /* basic sanity check */ 1042 if ( ca_type == 0 || ca_len == 0) { 1043 return hexdump; 1044 } 1045 if (lci_len < ca_len) { 1046 return hexdump; 1047 } 1048 1049 safeputs(ndo, tptr, ca_len); 1050 tptr += ca_len; 1051 lci_len -= ca_len; 1052 } 1053 break; 1054 1055 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1056 ND_PRINT((ndo, "\n\t ECS ELIN id ")); 1057 safeputs(ndo, tptr + 5, tlv_len - 5); 1058 break; 1059 1060 default: 1061 ND_PRINT((ndo, "\n\t Location ID ")); 1062 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1063 } 1064 break; 1065 1066 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1067 if (tlv_len < 7) { 1068 return hexdump; 1069 } 1070 ND_PRINT((ndo, "\n\t Power type [%s]", 1071 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device")); 1072 ND_PRINT((ndo, ", Power source [%s]", 1073 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4))); 1074 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)", 1075 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f), 1076 *(tptr + 4) & 0x0f)); 1077 power_val = EXTRACT_16BITS(tptr+5); 1078 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1079 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10)); 1080 } else { 1081 ND_PRINT((ndo, ", Power %u (Reserved)", power_val)); 1082 } 1083 break; 1084 1085 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1086 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1087 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1088 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1089 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1090 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1091 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1092 ND_PRINT((ndo, "\n\t %s ", 1093 tok2str(lldp_tia_inventory_values, "unknown", subtype))); 1094 safeputs(ndo, tptr + 4, tlv_len - 4); 1095 break; 1096 1097 default: 1098 hexdump = TRUE; 1099 break; 1100 } 1101 1102 return hexdump; 1103 } 1104 1105 /* 1106 * Print DCBX Protocol fields (V 1.01). 1107 */ 1108 static int 1109 lldp_private_dcbx_print(netdissect_options *ndo, 1110 const u_char *pptr, u_int len) 1111 { 1112 int subtype, hexdump = FALSE; 1113 uint8_t tval; 1114 uint16_t tlv; 1115 uint32_t i, pgval, uval; 1116 u_int tlen, tlv_type, tlv_len; 1117 const u_char *tptr, *mptr; 1118 1119 if (len < 4) { 1120 return hexdump; 1121 } 1122 subtype = *(pptr+3); 1123 1124 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 1125 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1126 subtype)); 1127 1128 /* by passing old version */ 1129 if (subtype == LLDP_DCBX_SUBTYPE_1) 1130 return TRUE; 1131 1132 tptr = pptr + 4; 1133 tlen = len - 4; 1134 1135 while (tlen >= sizeof(tlv)) { 1136 1137 ND_TCHECK2(*tptr, sizeof(tlv)); 1138 1139 tlv = EXTRACT_16BITS(tptr); 1140 1141 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1142 tlv_len = LLDP_EXTRACT_LEN(tlv); 1143 hexdump = FALSE; 1144 1145 tlen -= sizeof(tlv); 1146 tptr += sizeof(tlv); 1147 1148 /* loop check */ 1149 if (!tlv_type || !tlv_len) { 1150 break; 1151 } 1152 1153 ND_TCHECK2(*tptr, tlv_len); 1154 if (tlen < tlv_len) { 1155 goto trunc; 1156 } 1157 1158 /* decode every tlv */ 1159 switch (tlv_type) { 1160 case LLDP_DCBX_CONTROL_TLV: 1161 if (tlv_len < 10) { 1162 goto trunc; 1163 } 1164 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)", 1165 LLDP_DCBX_CONTROL_TLV, tlv_len)); 1166 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1167 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1168 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2))); 1169 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d", 1170 EXTRACT_32BITS(tptr + 6))); 1171 break; 1172 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1173 if (tlv_len < 17) { 1174 goto trunc; 1175 } 1176 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)", 1177 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len)); 1178 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1179 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1180 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1181 tval = *(tptr+2); 1182 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1183 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1184 (tval & 0x20) ? 1 : 0)); 1185 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1186 ND_PRINT((ndo, "\n\t Priority Allocation")); 1187 1188 /* 1189 * Array of 8 4-bit priority group ID values; we fetch all 1190 * 32 bits and extract each nibble. 1191 */ 1192 pgval = EXTRACT_32BITS(tptr+4); 1193 for (i = 0; i <= 7; i++) { 1194 ND_PRINT((ndo, "\n\t PgId_%d: %d", 1195 i, (pgval >> (28 - 4 * i)) & 0xF)); 1196 } 1197 ND_PRINT((ndo, "\n\t Priority Group Allocation")); 1198 for (i = 0; i <= 7; i++) 1199 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i))); 1200 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8))); 1201 break; 1202 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1203 if (tlv_len < 6) { 1204 goto trunc; 1205 } 1206 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control")); 1207 ND_PRINT((ndo, " (type 0x%x, length %d)", 1208 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len)); 1209 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1210 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1211 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1212 tval = *(tptr+2); 1213 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1214 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1215 (tval & 0x20) ? 1 : 0)); 1216 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1217 tval = *(tptr+4); 1218 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4))); 1219 for (i = 0; i <= 7; i++) 1220 ND_PRINT((ndo, "\n\t Priority Bit %d: %s", 1221 i, (tval & (1 << i)) ? "Enabled" : "Disabled")); 1222 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5))); 1223 break; 1224 case LLDP_DCBX_APPLICATION_TLV: 1225 if (tlv_len < 4) { 1226 goto trunc; 1227 } 1228 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)", 1229 LLDP_DCBX_APPLICATION_TLV, tlv_len)); 1230 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1231 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1232 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1233 tval = *(tptr+2); 1234 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1235 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1236 (tval & 0x20) ? 1 : 0)); 1237 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1238 tval = tlv_len - 4; 1239 mptr = tptr + 4; 1240 while (tval >= 6) { 1241 ND_PRINT((ndo, "\n\t Application Value")); 1242 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x", 1243 EXTRACT_16BITS(mptr))); 1244 uval = EXTRACT_24BITS(mptr+2); 1245 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s", 1246 (uval >> 22), 1247 (uval >> 22) ? "Socket Number" : "L2 EtherType")); 1248 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff)); 1249 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5))); 1250 tval = tval - 6; 1251 mptr = mptr + 6; 1252 } 1253 break; 1254 default: 1255 hexdump = TRUE; 1256 break; 1257 } 1258 1259 /* do we also want to see a hex dump ? */ 1260 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1261 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1262 } 1263 1264 tlen -= tlv_len; 1265 tptr += tlv_len; 1266 } 1267 1268 trunc: 1269 return hexdump; 1270 } 1271 1272 static char * 1273 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1274 { 1275 uint8_t af; 1276 static char buf[BUFSIZE]; 1277 const char * (*pfunc)(netdissect_options *, const u_char *); 1278 1279 if (len < 1) 1280 return NULL; 1281 len--; 1282 af = *tptr; 1283 switch (af) { 1284 case AFNUM_INET: 1285 if (len < 4) 1286 return NULL; 1287 pfunc = getname; 1288 break; 1289 #ifdef INET6 1290 case AFNUM_INET6: 1291 if (len < 16) 1292 return NULL; 1293 pfunc = getname6; 1294 break; 1295 #endif 1296 case AFNUM_802: 1297 if (len < 6) 1298 return NULL; 1299 pfunc = etheraddr_string; 1300 break; 1301 default: 1302 pfunc = NULL; 1303 break; 1304 } 1305 1306 if (!pfunc) { 1307 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1308 tok2str(af_values, "Unknown", af), af); 1309 } else { 1310 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1311 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1312 } 1313 1314 return buf; 1315 } 1316 1317 static int 1318 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1319 const u_char *pptr, u_int len) 1320 { 1321 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1322 const u_char *tptr; 1323 u_int tlen; 1324 char *mgmt_addr; 1325 1326 tlen = len; 1327 tptr = pptr; 1328 1329 if (tlen < 1) { 1330 return 0; 1331 } 1332 mgmt_addr_len = *tptr++; 1333 tlen--; 1334 1335 if (tlen < mgmt_addr_len) { 1336 return 0; 1337 } 1338 1339 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1340 if (mgmt_addr == NULL) { 1341 return 0; 1342 } 1343 ND_PRINT((ndo, "\n\t Management Address length %u, %s", 1344 mgmt_addr_len, mgmt_addr)); 1345 tptr += mgmt_addr_len; 1346 tlen -= mgmt_addr_len; 1347 1348 if (tlen < LLDP_INTF_NUM_LEN) { 1349 return 0; 1350 } 1351 1352 intf_num_subtype = *tptr; 1353 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u", 1354 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1355 intf_num_subtype, 1356 EXTRACT_32BITS(tptr + 1))); 1357 1358 tptr += LLDP_INTF_NUM_LEN; 1359 tlen -= LLDP_INTF_NUM_LEN; 1360 1361 /* 1362 * The OID is optional. 1363 */ 1364 if (tlen) { 1365 oid_len = *tptr; 1366 1367 if (tlen < oid_len) { 1368 return 0; 1369 } 1370 if (oid_len) { 1371 ND_PRINT((ndo, "\n\t OID length %u", oid_len)); 1372 safeputs(ndo, tptr + 1, oid_len); 1373 } 1374 } 1375 1376 return 1; 1377 } 1378 1379 void 1380 lldp_print(netdissect_options *ndo, 1381 register const u_char *pptr, register u_int len) 1382 { 1383 uint8_t subtype; 1384 uint16_t tlv, cap, ena_cap; 1385 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1386 const u_char *tptr; 1387 char *network_addr; 1388 1389 tptr = pptr; 1390 tlen = len; 1391 1392 ND_PRINT((ndo, "LLDP, length %u", len)); 1393 1394 while (tlen >= sizeof(tlv)) { 1395 1396 ND_TCHECK2(*tptr, sizeof(tlv)); 1397 1398 tlv = EXTRACT_16BITS(tptr); 1399 1400 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1401 tlv_len = LLDP_EXTRACT_LEN(tlv); 1402 hexdump = FALSE; 1403 1404 tlen -= sizeof(tlv); 1405 tptr += sizeof(tlv); 1406 1407 if (ndo->ndo_vflag) { 1408 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u", 1409 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1410 tlv_type, tlv_len)); 1411 } 1412 1413 /* infinite loop check */ 1414 if (!tlv_type || !tlv_len) { 1415 break; 1416 } 1417 1418 ND_TCHECK2(*tptr, tlv_len); 1419 if (tlen < tlv_len) { 1420 goto trunc; 1421 } 1422 1423 switch (tlv_type) { 1424 1425 case LLDP_CHASSIS_ID_TLV: 1426 if (ndo->ndo_vflag) { 1427 if (tlv_len < 2) { 1428 goto trunc; 1429 } 1430 subtype = *tptr; 1431 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1432 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1433 subtype)); 1434 1435 switch (subtype) { 1436 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1437 if (tlv_len < 1+6) { 1438 goto trunc; 1439 } 1440 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1441 break; 1442 1443 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1444 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1445 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1446 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1447 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1448 safeputs(ndo, tptr + 1, tlv_len - 1); 1449 break; 1450 1451 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1452 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1453 if (network_addr == NULL) { 1454 goto trunc; 1455 } 1456 ND_PRINT((ndo, "%s", network_addr)); 1457 break; 1458 1459 default: 1460 hexdump = TRUE; 1461 break; 1462 } 1463 } 1464 break; 1465 1466 case LLDP_PORT_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_port_subtype_values, "Unknown", subtype), 1474 subtype)); 1475 1476 switch (subtype) { 1477 case LLDP_PORT_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_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1485 case LLDP_PORT_LOCAL_SUBTYPE: 1486 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1487 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1488 case LLDP_PORT_PORT_COMP_SUBTYPE: 1489 safeputs(ndo, tptr + 1, tlv_len - 1); 1490 break; 1491 1492 case LLDP_PORT_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_TTL_TLV: 1508 if (ndo->ndo_vflag) { 1509 if (tlv_len < 2) { 1510 goto trunc; 1511 } 1512 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr))); 1513 } 1514 break; 1515 1516 case LLDP_PORT_DESCR_TLV: 1517 if (ndo->ndo_vflag) { 1518 ND_PRINT((ndo, ": ")); 1519 safeputs(ndo, tptr, tlv_len); 1520 } 1521 break; 1522 1523 case LLDP_SYSTEM_NAME_TLV: 1524 /* 1525 * The system name is also print in non-verbose mode 1526 * similar to the CDP printer. 1527 */ 1528 ND_PRINT((ndo, ": ")); 1529 safeputs(ndo, tptr, tlv_len); 1530 break; 1531 1532 case LLDP_SYSTEM_DESCR_TLV: 1533 if (ndo->ndo_vflag) { 1534 ND_PRINT((ndo, "\n\t ")); 1535 safeputs(ndo, tptr, tlv_len); 1536 } 1537 break; 1538 1539 case LLDP_SYSTEM_CAP_TLV: 1540 if (ndo->ndo_vflag) { 1541 /* 1542 * XXX - IEEE Std 802.1AB-2009 says the first octet 1543 * if a chassis ID subtype, with the system 1544 * capabilities and enabled capabilities following 1545 * it. 1546 */ 1547 if (tlv_len < 4) { 1548 goto trunc; 1549 } 1550 cap = EXTRACT_16BITS(tptr); 1551 ena_cap = EXTRACT_16BITS(tptr+2); 1552 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)", 1553 bittok2str(lldp_cap_values, "none", cap), cap)); 1554 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)", 1555 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap)); 1556 } 1557 break; 1558 1559 case LLDP_MGMT_ADDR_TLV: 1560 if (ndo->ndo_vflag) { 1561 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1562 goto trunc; 1563 } 1564 } 1565 break; 1566 1567 case LLDP_PRIVATE_TLV: 1568 if (ndo->ndo_vflag) { 1569 if (tlv_len < 3) { 1570 goto trunc; 1571 } 1572 oui = EXTRACT_24BITS(tptr); 1573 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui)); 1574 1575 switch (oui) { 1576 case OUI_IEEE_8021_PRIVATE: 1577 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1578 break; 1579 case OUI_IEEE_8023_PRIVATE: 1580 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1581 break; 1582 case OUI_TIA: 1583 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1584 break; 1585 case OUI_DCBX: 1586 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1587 break; 1588 default: 1589 hexdump = TRUE; 1590 break; 1591 } 1592 } 1593 break; 1594 1595 default: 1596 hexdump = TRUE; 1597 break; 1598 } 1599 1600 /* do we also want to see a hex dump ? */ 1601 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1602 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1603 } 1604 1605 tlen -= tlv_len; 1606 tptr += tlv_len; 1607 } 1608 return; 1609 trunc: 1610 ND_PRINT((ndo, "\n\t[|LLDP]")); 1611 } 1612 1613 /* 1614 * Local Variables: 1615 * c-style: whitesmith 1616 * c-basic-offset: 4 1617 * End: 1618 */ 1619