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@gredler.at) 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 1.11 2024/09/02 16:15:31 christos Exp $"); 25 #endif 26 27 #include <config.h> 28 29 #include "netdissect-stdinc.h" 30 31 #include <stdio.h> 32 33 #include "netdissect.h" 34 #include "extract.h" 35 #include "addrtoname.h" 36 #include "af.h" 37 #include "oui.h" 38 39 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) 40 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) 41 42 /* 43 * TLV type codes 44 */ 45 #define LLDP_END_TLV 0 46 #define LLDP_CHASSIS_ID_TLV 1 47 #define LLDP_PORT_ID_TLV 2 48 #define LLDP_TTL_TLV 3 49 #define LLDP_PORT_DESCR_TLV 4 50 #define LLDP_SYSTEM_NAME_TLV 5 51 #define LLDP_SYSTEM_DESCR_TLV 6 52 #define LLDP_SYSTEM_CAP_TLV 7 53 #define LLDP_MGMT_ADDR_TLV 8 54 #define LLDP_PRIVATE_TLV 127 55 56 static const struct tok lldp_tlv_values[] = { 57 { LLDP_END_TLV, "End" }, 58 { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, 59 { LLDP_PORT_ID_TLV, "Port ID" }, 60 { LLDP_TTL_TLV, "Time to Live" }, 61 { LLDP_PORT_DESCR_TLV, "Port Description" }, 62 { LLDP_SYSTEM_NAME_TLV, "System Name" }, 63 { LLDP_SYSTEM_DESCR_TLV, "System Description" }, 64 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, 65 { LLDP_MGMT_ADDR_TLV, "Management Address" }, 66 { LLDP_PRIVATE_TLV, "Organization specific" }, 67 { 0, NULL} 68 }; 69 70 /* 71 * Chassis ID subtypes 72 */ 73 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 74 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 75 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 76 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 77 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 78 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 79 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 80 81 static const struct tok lldp_chassis_subtype_values[] = { 82 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, 83 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, 84 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, 85 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, 86 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, 87 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, 88 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, 89 { 0, NULL} 90 }; 91 92 /* 93 * Port ID subtypes 94 */ 95 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 96 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 97 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 98 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 99 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 100 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 101 #define LLDP_PORT_LOCAL_SUBTYPE 7 102 103 static const struct tok lldp_port_subtype_values[] = { 104 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, 105 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, 106 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, 107 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, 108 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, 109 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, 110 { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, 111 { 0, NULL} 112 }; 113 114 /* 115 * System Capabilities 116 */ 117 #define LLDP_CAP_OTHER (1 << 0) 118 #define LLDP_CAP_REPEATER (1 << 1) 119 #define LLDP_CAP_BRIDGE (1 << 2) 120 #define LLDP_CAP_WLAN_AP (1 << 3) 121 #define LLDP_CAP_ROUTER (1 << 4) 122 #define LLDP_CAP_PHONE (1 << 5) 123 #define LLDP_CAP_DOCSIS (1 << 6) 124 #define LLDP_CAP_STATION_ONLY (1 << 7) 125 126 static const struct tok lldp_cap_values[] = { 127 { LLDP_CAP_OTHER, "Other"}, 128 { LLDP_CAP_REPEATER, "Repeater"}, 129 { LLDP_CAP_BRIDGE, "Bridge"}, 130 { LLDP_CAP_WLAN_AP, "WLAN AP"}, 131 { LLDP_CAP_ROUTER, "Router"}, 132 { LLDP_CAP_PHONE, "Telephone"}, 133 { LLDP_CAP_DOCSIS, "Docsis"}, 134 { LLDP_CAP_STATION_ONLY, "Station Only"}, 135 { 0, NULL} 136 }; 137 138 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 139 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 140 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 141 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 142 #define LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR 7 143 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8 144 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9 145 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10 146 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11 147 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12 148 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13 149 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14 150 151 static const struct tok lldp_8021_subtype_values[] = { 152 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, 153 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, 154 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, 155 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, 156 { LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR, "Link aggregation"}, 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_CAPABILITY (1 << 0) 549 #define LLDP_AGGREGATION_STATUS (1 << 1) 550 551 static const struct tok lldp_aggregation_values[] = { 552 { LLDP_AGGREGATION_CAPABILITY, "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 Station"}, 597 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"}, 598 { 0, NULL}, 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 #define LLDP_IANA_SUBTYPE_MUDURL 1 611 612 static const struct tok lldp_iana_subtype_values[] = { 613 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" }, 614 { 0, NULL } 615 }; 616 617 618 static void 619 print_ets_priority_assignment_table(netdissect_options *ndo, 620 const u_char *ptr) 621 { 622 ND_PRINT("\n\t Priority Assignment Table"); 623 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 624 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 625 GET_U_1(ptr) >> 4, GET_U_1(ptr) & 0x0f, 626 GET_U_1(ptr + 1) >> 4, GET_U_1(ptr + 1) & 0x0f, 627 GET_U_1(ptr + 2) >> 4, GET_U_1(ptr + 2) & 0x0f, 628 GET_U_1(ptr + 3) >> 4, GET_U_1(ptr + 3) & 0x0f); 629 } 630 631 static void 632 print_tc_bandwidth_table(netdissect_options *ndo, 633 const u_char *ptr) 634 { 635 ND_PRINT("\n\t TC Bandwidth Table"); 636 ND_PRINT("\n\t TC%% : 0 1 2 3 4 5 6 7"); 637 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 638 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2), 639 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5), 640 GET_U_1(ptr + 6), GET_U_1(ptr + 7)); 641 } 642 643 static void 644 print_tsa_assignment_table(netdissect_options *ndo, 645 const u_char *ptr) 646 { 647 ND_PRINT("\n\t TSA Assignment Table"); 648 ND_PRINT("\n\t Traffic Class: 0 1 2 3 4 5 6 7"); 649 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 650 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2), 651 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5), 652 GET_U_1(ptr + 6), GET_U_1(ptr + 7)); 653 } 654 655 /* 656 * Print IEEE 802.1 private extensions. (802.1AB annex E) 657 */ 658 static int 659 lldp_private_8021_print(netdissect_options *ndo, 660 const u_char *tptr, u_int tlv_len) 661 { 662 int hexdump = FALSE; 663 u_int subtype; 664 u_int sublen; 665 u_int tval; 666 u_int i; 667 668 if (tlv_len < 4) { 669 return hexdump; 670 } 671 subtype = GET_U_1(tptr + 3); 672 673 ND_PRINT("\n\t %s Subtype (%u)", 674 tok2str(lldp_8021_subtype_values, "unknown", subtype), 675 subtype); 676 677 switch (subtype) { 678 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 679 if (tlv_len < 6) { 680 return hexdump; 681 } 682 ND_PRINT("\n\t port vlan id (PVID): %u", 683 GET_BE_U_2(tptr + 4)); 684 break; 685 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 686 if (tlv_len < 7) { 687 return hexdump; 688 } 689 ND_PRINT("\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 690 GET_BE_U_2(tptr + 5), 691 bittok2str(lldp_8021_port_protocol_id_values, "none", GET_U_1(tptr + 4)), 692 GET_U_1(tptr + 4)); 693 break; 694 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 695 if (tlv_len < 6) { 696 return hexdump; 697 } 698 ND_PRINT("\n\t vlan id (VID): %u", GET_BE_U_2(tptr + 4)); 699 if (tlv_len < 7) { 700 return hexdump; 701 } 702 sublen = GET_U_1(tptr + 6); 703 if (tlv_len < 7+sublen) { 704 return hexdump; 705 } 706 ND_PRINT("\n\t vlan name: "); 707 nd_printjnp(ndo, tptr + 7, sublen); 708 break; 709 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 710 if (tlv_len < 5) { 711 return hexdump; 712 } 713 sublen = GET_U_1(tptr + 4); 714 if (tlv_len < 5+sublen) { 715 return hexdump; 716 } 717 ND_PRINT("\n\t protocol identity: "); 718 nd_printjnp(ndo, tptr + 5, sublen); 719 break; 720 721 case LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR: 722 if (tlv_len < 9) { 723 return hexdump; 724 } 725 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u", 726 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))), 727 GET_BE_U_4(tptr + 5)); 728 break; 729 730 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 731 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 732 return hexdump; 733 } 734 tval=GET_U_1(tptr + 4); 735 ND_PRINT("\n\t Pre-Priority CNPV Indicator"); 736 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 737 ND_PRINT("\n\t Value : "); 738 for(i=0;i<NO_OF_BITS;i++) 739 ND_PRINT("%-2d ", (tval >> i) & 0x01); 740 tval=GET_U_1(tptr + 5); 741 ND_PRINT("\n\t Pre-Priority Ready Indicator"); 742 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 743 ND_PRINT("\n\t Value : "); 744 for(i=0;i<NO_OF_BITS;i++) 745 ND_PRINT("%-2d ", (tval >> i) & 0x01); 746 break; 747 748 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 749 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 750 return hexdump; 751 } 752 tval=GET_U_1(tptr + 4); 753 ND_PRINT("\n\t Willing:%u, CBS:%u, RES:%u, Max TCs:%u", 754 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07); 755 756 /*Print Priority Assignment Table*/ 757 print_ets_priority_assignment_table(ndo, tptr + 5); 758 759 /*Print TC Bandwidth Table*/ 760 print_tc_bandwidth_table(ndo, tptr + 9); 761 762 /* Print TSA Assignment Table */ 763 print_tsa_assignment_table(ndo, tptr + 17); 764 765 break; 766 767 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 768 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 769 return hexdump; 770 } 771 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4)); 772 /*Print Priority Assignment Table */ 773 print_ets_priority_assignment_table(ndo, tptr + 5); 774 /*Print TC Bandwidth Table */ 775 print_tc_bandwidth_table(ndo, tptr + 9); 776 /* Print TSA Assignment Table */ 777 print_tsa_assignment_table(ndo, tptr + 17); 778 break; 779 780 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 781 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 782 return hexdump; 783 } 784 tval=GET_U_1(tptr + 4); 785 ND_PRINT("\n\t Willing: %u, MBC: %u, RES: %u, PFC cap:%u ", 786 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f)); 787 ND_PRINT("\n\t PFC Enable"); 788 tval=GET_U_1(tptr + 5); 789 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 790 ND_PRINT("\n\t Value : "); 791 for(i=0;i<NO_OF_BITS;i++) 792 ND_PRINT("%-2d ", (tval >> i) & 0x01); 793 break; 794 795 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 796 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 797 return hexdump; 798 } 799 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4)); 800 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 801 return hexdump; 802 } 803 /* Length of Application Priority Table */ 804 sublen=tlv_len-5; 805 if(sublen%3!=0){ 806 return hexdump; 807 } 808 i=0; 809 ND_PRINT("\n\t Application Priority Table"); 810 while(i<sublen) { 811 tval=GET_U_1(tptr + i + 5); 812 ND_PRINT("\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u", 813 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07), 814 GET_BE_U_2(tptr + i + 6)); 815 i=i+3; 816 } 817 break; 818 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 819 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 820 return hexdump; 821 } 822 ND_PRINT("\n\t EVB Bridge Status"); 823 tval=GET_U_1(tptr + 4); 824 ND_PRINT("\n\t RES: %u, BGID: %u, RRCAP: %u, RRCTR: %u", 825 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01); 826 ND_PRINT("\n\t EVB Station Status"); 827 tval=GET_U_1(tptr + 5); 828 ND_PRINT("\n\t RES: %u, SGID: %u, RRREQ: %u,RRSTAT: %u", 829 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03); 830 tval=GET_U_1(tptr + 6); 831 ND_PRINT("\n\t R: %u, RTE: %u, ",tval >> 5, tval & 0x1f); 832 tval=GET_U_1(tptr + 7); 833 ND_PRINT("EVB Mode: %s [%u]", 834 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6); 835 ND_PRINT("\n\t ROL: %u, RWD: %u, ", (tval >> 5) & 0x01, tval & 0x1f); 836 tval=GET_U_1(tptr + 8); 837 ND_PRINT("RES: %u, ROL: %u, RKA: %u", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f); 838 break; 839 840 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 841 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 842 return hexdump; 843 } 844 tval=GET_U_1(tptr + 4); 845 ND_PRINT("\n\t Role: %u, RES: %u, Scomp: %u ", 846 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01); 847 ND_PRINT("ChnCap: %u", GET_BE_U_2(tptr + 6) & 0x0fff); 848 sublen=tlv_len-8; 849 if(sublen%3!=0) { 850 return hexdump; 851 } 852 i=0; 853 while(i<sublen) { 854 tval=GET_BE_U_3(tptr + i + 8); 855 ND_PRINT("\n\t SCID: %u, SVID: %u", 856 tval >> 12, tval & 0x000fff); 857 i=i+3; 858 } 859 break; 860 861 default: 862 hexdump = TRUE; 863 break; 864 } 865 866 return hexdump; 867 } 868 869 /* 870 * Print IEEE 802.3 private extensions. (802.3bc) 871 */ 872 static int 873 lldp_private_8023_print(netdissect_options *ndo, 874 const u_char *tptr, u_int tlv_len) 875 { 876 int hexdump = FALSE; 877 u_int subtype; 878 879 if (tlv_len < 4) { 880 return hexdump; 881 } 882 subtype = GET_U_1(tptr + 3); 883 884 ND_PRINT("\n\t %s Subtype (%u)", 885 tok2str(lldp_8023_subtype_values, "unknown", subtype), 886 subtype); 887 888 switch (subtype) { 889 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 890 if (tlv_len < 9) { 891 return hexdump; 892 } 893 ND_PRINT("\n\t autonegotiation [%s] (0x%02x)", 894 bittok2str(lldp_8023_autonegotiation_values, "none", GET_U_1(tptr + 4)), 895 GET_U_1(tptr + 4)); 896 ND_PRINT("\n\t PMD autoneg capability [%s] (0x%04x)", 897 bittok2str(lldp_pmd_capability_values,"unknown", GET_BE_U_2(tptr + 5)), 898 GET_BE_U_2(tptr + 5)); 899 ND_PRINT("\n\t MAU type %s (0x%04x)", 900 tok2str(lldp_mau_types_values, "unknown", GET_BE_U_2(tptr + 7)), 901 GET_BE_U_2(tptr + 7)); 902 break; 903 904 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 905 if (tlv_len < 7) { 906 return hexdump; 907 } 908 ND_PRINT("\n\t MDI power support [%s], power pair %s, power class %s", 909 bittok2str(lldp_mdi_values, "none", GET_U_1((tptr + 4))), 910 tok2str(lldp_mdi_power_pairs_values, "unknown", GET_U_1((tptr + 5))), 911 tok2str(lldp_mdi_power_class_values, "unknown", GET_U_1((tptr + 6)))); 912 break; 913 914 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 915 if (tlv_len < 9) { 916 return hexdump; 917 } 918 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u", 919 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))), 920 GET_BE_U_4(tptr + 5)); 921 break; 922 923 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 924 if (tlv_len < 6) { 925 return hexdump; 926 } 927 ND_PRINT("\n\t MTU size %u", GET_BE_U_2(tptr + 4)); 928 break; 929 930 default: 931 hexdump = TRUE; 932 break; 933 } 934 935 return hexdump; 936 } 937 938 /* 939 * Extract 34bits of latitude/longitude coordinates. 940 */ 941 static uint64_t 942 lldp_extract_latlon(netdissect_options *ndo, const u_char *tptr) 943 { 944 uint64_t latlon; 945 946 latlon = GET_U_1(tptr) & 0x3; 947 latlon = (latlon << 32) | GET_BE_U_4(tptr + 1); 948 949 return latlon; 950 } 951 952 /* objects defined in IANA subtype 00 00 5e 953 * (right now there is only one) 954 */ 955 956 957 static int 958 lldp_private_iana_print(netdissect_options *ndo, 959 const u_char *tptr, u_int tlv_len) 960 { 961 int hexdump = FALSE; 962 u_int subtype; 963 964 if (tlv_len < 8) { 965 return hexdump; 966 } 967 subtype = GET_U_1(tptr + 3); 968 969 ND_PRINT("\n\t %s Subtype (%u)", 970 tok2str(lldp_iana_subtype_values, "unknown", subtype), 971 subtype); 972 973 switch (subtype) { 974 case LLDP_IANA_SUBTYPE_MUDURL: 975 ND_PRINT("\n\t MUD-URL="); 976 (void)nd_printn(ndo, tptr+4, tlv_len-4, NULL); 977 break; 978 default: 979 hexdump=TRUE; 980 } 981 982 return hexdump; 983 } 984 985 986 987 /* 988 * Print private TIA extensions. 989 */ 990 static int 991 lldp_private_tia_print(netdissect_options *ndo, 992 const u_char *tptr, u_int tlv_len) 993 { 994 int hexdump = FALSE; 995 u_int subtype; 996 uint8_t location_format; 997 uint16_t power_val; 998 u_int lci_len; 999 uint8_t ca_type, ca_len; 1000 1001 if (tlv_len < 4) { 1002 return hexdump; 1003 } 1004 subtype = GET_U_1(tptr + 3); 1005 1006 ND_PRINT("\n\t %s Subtype (%u)", 1007 tok2str(lldp_tia_subtype_values, "unknown", subtype), 1008 subtype); 1009 1010 switch (subtype) { 1011 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 1012 if (tlv_len < 7) { 1013 return hexdump; 1014 } 1015 ND_PRINT("\n\t Media capabilities [%s] (0x%04x)", 1016 bittok2str(lldp_tia_capabilities_values, "none", 1017 GET_BE_U_2(tptr + 4)), GET_BE_U_2(tptr + 4)); 1018 ND_PRINT("\n\t Device type [%s] (0x%02x)", 1019 tok2str(lldp_tia_device_type_values, "unknown", GET_U_1(tptr + 6)), 1020 GET_U_1(tptr + 6)); 1021 break; 1022 1023 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 1024 if (tlv_len < 8) { 1025 return hexdump; 1026 } 1027 ND_PRINT("\n\t Application type [%s] (0x%02x)", 1028 tok2str(lldp_tia_application_type_values, "none", GET_U_1(tptr + 4)), 1029 GET_U_1(tptr + 4)); 1030 ND_PRINT(", Flags [%s]", bittok2str( 1031 lldp_tia_network_policy_bits_values, "none", GET_U_1((tptr + 5)))); 1032 ND_PRINT("\n\t Vlan id %u", 1033 LLDP_EXTRACT_NETWORK_POLICY_VLAN(GET_BE_U_2(tptr + 5))); 1034 ND_PRINT(", L2 priority %u", 1035 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(GET_BE_U_2(tptr + 6))); 1036 ND_PRINT(", DSCP value %u", 1037 LLDP_EXTRACT_NETWORK_POLICY_DSCP(GET_BE_U_2(tptr + 6))); 1038 break; 1039 1040 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 1041 if (tlv_len < 5) { 1042 return hexdump; 1043 } 1044 location_format = GET_U_1(tptr + 4); 1045 ND_PRINT("\n\t Location data format %s (0x%02x)", 1046 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 1047 location_format); 1048 1049 switch (location_format) { 1050 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 1051 if (tlv_len < 21) { 1052 return hexdump; 1053 } 1054 ND_PRINT("\n\t Latitude resolution %u, latitude value %" PRIu64, 1055 (GET_U_1(tptr + 5) >> 2), 1056 lldp_extract_latlon(ndo, tptr + 5)); 1057 ND_PRINT("\n\t Longitude resolution %u, longitude value %" PRIu64, 1058 (GET_U_1(tptr + 10) >> 2), 1059 lldp_extract_latlon(ndo, tptr + 10)); 1060 ND_PRINT("\n\t Altitude type %s (%u)", 1061 tok2str(lldp_tia_location_altitude_type_values, "unknown",GET_U_1(tptr + 15) >> 4), 1062 (GET_U_1(tptr + 15) >> 4)); 1063 ND_PRINT("\n\t Altitude resolution %u, altitude value 0x%x", 1064 (GET_BE_U_2(tptr + 15)>>6)&0x3f, 1065 (GET_BE_U_4(tptr + 16) & 0x3fffffff)); 1066 ND_PRINT("\n\t Datum %s (0x%02x)", 1067 tok2str(lldp_tia_location_datum_type_values, "unknown", GET_U_1(tptr + 20)), 1068 GET_U_1(tptr + 20)); 1069 break; 1070 1071 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1072 if (tlv_len < 6) { 1073 return hexdump; 1074 } 1075 lci_len = GET_U_1(tptr + 5); 1076 if (lci_len < 3) { 1077 return hexdump; 1078 } 1079 if (tlv_len < 7+lci_len) { 1080 return hexdump; 1081 } 1082 ND_PRINT("\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1083 lci_len, 1084 tok2str(lldp_tia_location_lci_what_values, "unknown", GET_U_1(tptr + 6)), 1085 GET_U_1(tptr + 6)); 1086 1087 /* Country code */ 1088 nd_printjnp(ndo, tptr + 7, 2); 1089 1090 lci_len = lci_len-3; 1091 tptr = tptr + 9; 1092 1093 /* Decode each civic address element */ 1094 while (lci_len > 0) { 1095 if (lci_len < 2) { 1096 return hexdump; 1097 } 1098 ca_type = GET_U_1(tptr); 1099 ca_len = GET_U_1(tptr + 1); 1100 1101 tptr += 2; 1102 lci_len -= 2; 1103 1104 ND_PRINT("\n\t CA type '%s' (%u), length %u: ", 1105 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1106 ca_type, ca_len); 1107 1108 /* basic sanity check */ 1109 if ( ca_type == 0 || ca_len == 0) { 1110 return hexdump; 1111 } 1112 if (lci_len < ca_len) { 1113 return hexdump; 1114 } 1115 1116 nd_printjnp(ndo, tptr, ca_len); 1117 tptr += ca_len; 1118 lci_len -= ca_len; 1119 } 1120 break; 1121 1122 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1123 ND_PRINT("\n\t ECS ELIN id "); 1124 nd_printjnp(ndo, tptr + 5, tlv_len - 5); 1125 break; 1126 1127 default: 1128 ND_PRINT("\n\t Location ID "); 1129 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1130 } 1131 break; 1132 1133 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1134 if (tlv_len < 7) { 1135 return hexdump; 1136 } 1137 ND_PRINT("\n\t Power type [%s]", 1138 (GET_U_1(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device"); 1139 ND_PRINT(", Power source [%s]", 1140 tok2str(lldp_tia_power_source_values, "none", (GET_U_1((tptr + 4)) & 0x30) >> 4)); 1141 ND_PRINT("\n\t Power priority [%s] (0x%02x)", 1142 tok2str(lldp_tia_power_priority_values, "none", GET_U_1(tptr + 4) & 0x0f), 1143 GET_U_1(tptr + 4) & 0x0f); 1144 power_val = GET_BE_U_2(tptr + 5); 1145 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1146 ND_PRINT(", Power %.1f Watts", ((float)power_val) / 10); 1147 } else { 1148 ND_PRINT(", Power %u (Reserved)", power_val); 1149 } 1150 break; 1151 1152 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1153 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1154 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1155 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1156 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1157 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1158 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1159 ND_PRINT("\n\t %s ", 1160 tok2str(lldp_tia_inventory_values, "unknown", subtype)); 1161 nd_printjnp(ndo, tptr + 4, tlv_len - 4); 1162 break; 1163 1164 default: 1165 hexdump = TRUE; 1166 break; 1167 } 1168 1169 return hexdump; 1170 } 1171 1172 /* 1173 * Print DCBX Protocol fields (V 1.01). 1174 */ 1175 static int 1176 lldp_private_dcbx_print(netdissect_options *ndo, 1177 const u_char *pptr, u_int len) 1178 { 1179 int hexdump = FALSE; 1180 u_int subtype; 1181 uint16_t tval; 1182 uint16_t tlv; 1183 uint32_t i, pgval, uval; 1184 u_int tlen, tlv_type; 1185 uint16_t tlv_len; 1186 const u_char *tptr, *mptr; 1187 1188 if (len < 4) { 1189 return hexdump; 1190 } 1191 subtype = GET_U_1(pptr + 3); 1192 1193 ND_PRINT("\n\t %s Subtype (%u)", 1194 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1195 subtype); 1196 1197 /* by passing old version */ 1198 if (subtype == LLDP_DCBX_SUBTYPE_1) 1199 return TRUE; 1200 1201 tptr = pptr + 4; 1202 tlen = len - 4; 1203 1204 while (tlen >= sizeof(tlv)) { 1205 1206 ND_TCHECK_LEN(tptr, sizeof(tlv)); 1207 1208 tlv = GET_BE_U_2(tptr); 1209 1210 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1211 tlv_len = LLDP_EXTRACT_LEN(tlv); 1212 hexdump = FALSE; 1213 1214 tlen -= sizeof(tlv); 1215 tptr += sizeof(tlv); 1216 1217 /* loop check */ 1218 if (!tlv_type || !tlv_len) { 1219 break; 1220 } 1221 1222 ND_TCHECK_LEN(tptr, tlv_len); 1223 if (tlen < tlv_len) { 1224 goto trunc; 1225 } 1226 1227 /* decode every tlv */ 1228 switch (tlv_type) { 1229 case LLDP_DCBX_CONTROL_TLV: 1230 if (tlv_len < 10) { 1231 goto trunc; 1232 } 1233 ND_PRINT("\n\t Control - Protocol Control (type 0x%x, length %u)", 1234 LLDP_DCBX_CONTROL_TLV, tlv_len); 1235 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1236 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1237 ND_PRINT("\n\t Sequence Number: %u", GET_BE_U_4(tptr + 2)); 1238 ND_PRINT("\n\t Acknowledgement Number: %u", 1239 GET_BE_U_4(tptr + 6)); 1240 break; 1241 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1242 if (tlv_len < 17) { 1243 goto trunc; 1244 } 1245 ND_PRINT("\n\t Feature - Priority Group (type 0x%x, length %u)", 1246 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len); 1247 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1248 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1249 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2)); 1250 tval = GET_U_1(tptr + 2); 1251 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u", 1252 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1253 (tval & 0x20) ? 1 : 0); 1254 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3)); 1255 ND_PRINT("\n\t Priority Allocation"); 1256 1257 /* 1258 * Array of 8 4-bit priority group ID values; we fetch all 1259 * 32 bits and extract each nibble. 1260 */ 1261 pgval = GET_BE_U_4(tptr + 4); 1262 for (i = 0; i <= 7; i++) { 1263 ND_PRINT("\n\t PgId_%u: %u", 1264 i, (pgval >> (28 - 4 * i)) & 0xF); 1265 } 1266 ND_PRINT("\n\t Priority Group Allocation"); 1267 for (i = 0; i <= 7; i++) 1268 ND_PRINT("\n\t Pg percentage[%u]: %u", i, 1269 GET_U_1(tptr + 8 + i)); 1270 ND_PRINT("\n\t NumTCsSupported: %u", GET_U_1(tptr + 8 + 8)); 1271 break; 1272 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1273 if (tlv_len < 6) { 1274 goto trunc; 1275 } 1276 ND_PRINT("\n\t Feature - Priority Flow Control"); 1277 ND_PRINT(" (type 0x%x, length %u)", 1278 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len); 1279 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1280 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1281 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2)); 1282 tval = GET_U_1(tptr + 2); 1283 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u", 1284 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1285 (tval & 0x20) ? 1 : 0); 1286 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3)); 1287 tval = GET_U_1(tptr + 4); 1288 ND_PRINT("\n\t PFC Config (0x%02X)", GET_U_1(tptr + 4)); 1289 for (i = 0; i <= 7; i++) 1290 ND_PRINT("\n\t Priority Bit %u: %s", 1291 i, (tval & (1 << i)) ? "Enabled" : "Disabled"); 1292 ND_PRINT("\n\t NumTCPFCSupported: %u", GET_U_1(tptr + 5)); 1293 break; 1294 case LLDP_DCBX_APPLICATION_TLV: 1295 if (tlv_len < 4) { 1296 goto trunc; 1297 } 1298 ND_PRINT("\n\t Feature - Application (type 0x%x, length %u)", 1299 LLDP_DCBX_APPLICATION_TLV, tlv_len); 1300 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1301 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1302 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2)); 1303 tval = GET_U_1(tptr + 2); 1304 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u", 1305 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1306 (tval & 0x20) ? 1 : 0); 1307 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3)); 1308 tval = tlv_len - 4; 1309 mptr = tptr + 4; 1310 while (tval >= 6) { 1311 ND_PRINT("\n\t Application Value"); 1312 ND_PRINT("\n\t Application Protocol ID: 0x%04x", 1313 GET_BE_U_2(mptr)); 1314 uval = GET_BE_U_3(mptr + 2); 1315 ND_PRINT("\n\t SF (0x%x) Application Protocol ID is %s", 1316 (uval >> 22), 1317 (uval >> 22) ? "Socket Number" : "L2 EtherType"); 1318 ND_PRINT("\n\t OUI: 0x%06x", uval & 0x3fffff); 1319 ND_PRINT("\n\t User Priority Map: 0x%02x", 1320 GET_U_1(mptr + 5)); 1321 tval = tval - 6; 1322 mptr = mptr + 6; 1323 } 1324 break; 1325 default: 1326 hexdump = TRUE; 1327 break; 1328 } 1329 1330 /* do we also want to see a hex dump ? */ 1331 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1332 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1333 } 1334 1335 tlen -= tlv_len; 1336 tptr += tlv_len; 1337 } 1338 1339 trunc: 1340 return hexdump; 1341 } 1342 1343 static char * 1344 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1345 { 1346 uint8_t af; 1347 static char buf[BUFSIZE]; 1348 const char * (*pfunc)(netdissect_options *, const u_char *); 1349 1350 if (len < 1) 1351 return NULL; 1352 len--; 1353 af = GET_U_1(tptr); 1354 switch (af) { 1355 case AFNUM_INET: 1356 if (len < sizeof(nd_ipv4)) 1357 return NULL; 1358 pfunc = ipaddr_string; 1359 break; 1360 case AFNUM_INET6: 1361 if (len < sizeof(nd_ipv6)) 1362 return NULL; 1363 pfunc = ip6addr_string; 1364 break; 1365 case AFNUM_802: 1366 if (len < MAC_ADDR_LEN) 1367 return NULL; 1368 pfunc = etheraddr_string; 1369 break; 1370 default: 1371 pfunc = NULL; 1372 break; 1373 } 1374 1375 if (!pfunc) { 1376 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1377 tok2str(af_values, "Unknown", af), af); 1378 } else { 1379 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1380 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1381 } 1382 1383 return buf; 1384 } 1385 1386 static int 1387 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1388 const u_char *pptr, u_int len) 1389 { 1390 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1391 const u_char *tptr; 1392 u_int tlen; 1393 char *mgmt_addr; 1394 1395 tlen = len; 1396 tptr = pptr; 1397 1398 if (tlen < 1) { 1399 return 0; 1400 } 1401 mgmt_addr_len = GET_U_1(tptr); 1402 tptr++; 1403 tlen--; 1404 1405 if (tlen < mgmt_addr_len) { 1406 return 0; 1407 } 1408 1409 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1410 if (mgmt_addr == NULL) { 1411 return 0; 1412 } 1413 ND_PRINT("\n\t Management Address length %u, %s", 1414 mgmt_addr_len, mgmt_addr); 1415 tptr += mgmt_addr_len; 1416 tlen -= mgmt_addr_len; 1417 1418 if (tlen < LLDP_INTF_NUM_LEN) { 1419 return 0; 1420 } 1421 1422 intf_num_subtype = GET_U_1(tptr); 1423 ND_PRINT("\n\t %s Interface Numbering (%u): %u", 1424 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1425 intf_num_subtype, 1426 GET_BE_U_4(tptr + 1)); 1427 1428 tptr += LLDP_INTF_NUM_LEN; 1429 tlen -= LLDP_INTF_NUM_LEN; 1430 1431 /* 1432 * The OID is optional. 1433 */ 1434 if (tlen) { 1435 oid_len = GET_U_1(tptr); 1436 1437 if (tlen < 1U + oid_len) { 1438 return 0; 1439 } 1440 if (oid_len) { 1441 ND_PRINT("\n\t OID length %u", oid_len); 1442 nd_printjnp(ndo, tptr + 1, oid_len); 1443 } 1444 } 1445 1446 return 1; 1447 } 1448 1449 void 1450 lldp_print(netdissect_options *ndo, 1451 const u_char *pptr, u_int len) 1452 { 1453 uint8_t subtype; 1454 uint16_t tlv, cap, ena_cap; 1455 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1456 const u_char *tptr; 1457 char *network_addr; 1458 1459 ndo->ndo_protocol = "lldp"; 1460 tptr = pptr; 1461 tlen = len; 1462 1463 ND_PRINT("LLDP, length %u", len); 1464 1465 while (tlen >= sizeof(tlv)) { 1466 1467 ND_TCHECK_LEN(tptr, sizeof(tlv)); 1468 1469 tlv = GET_BE_U_2(tptr); 1470 1471 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1472 tlv_len = LLDP_EXTRACT_LEN(tlv); 1473 hexdump = FALSE; 1474 1475 tlen -= sizeof(tlv); 1476 tptr += sizeof(tlv); 1477 1478 if (ndo->ndo_vflag) { 1479 ND_PRINT("\n\t%s TLV (%u), length %u", 1480 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1481 tlv_type, tlv_len); 1482 } 1483 1484 /* infinite loop check */ 1485 if (!tlv_type || !tlv_len) { 1486 break; 1487 } 1488 1489 ND_TCHECK_LEN(tptr, tlv_len); 1490 if (tlen < tlv_len) { 1491 goto trunc; 1492 } 1493 1494 switch (tlv_type) { 1495 1496 case LLDP_CHASSIS_ID_TLV: 1497 if (ndo->ndo_vflag) { 1498 if (tlv_len < 2) { 1499 goto trunc; 1500 } 1501 subtype = GET_U_1(tptr); 1502 ND_PRINT("\n\t Subtype %s (%u): ", 1503 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1504 subtype); 1505 1506 switch (subtype) { 1507 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1508 if (tlv_len < 1+6) { 1509 goto trunc; 1510 } 1511 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1)); 1512 break; 1513 1514 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1515 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1516 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1517 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1518 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1519 nd_printjnp(ndo, tptr + 1, tlv_len - 1); 1520 break; 1521 1522 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1523 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1524 if (network_addr == NULL) { 1525 goto trunc; 1526 } 1527 ND_PRINT("%s", network_addr); 1528 break; 1529 1530 default: 1531 hexdump = TRUE; 1532 break; 1533 } 1534 } 1535 break; 1536 1537 case LLDP_PORT_ID_TLV: 1538 if (ndo->ndo_vflag) { 1539 if (tlv_len < 2) { 1540 goto trunc; 1541 } 1542 subtype = GET_U_1(tptr); 1543 ND_PRINT("\n\t Subtype %s (%u): ", 1544 tok2str(lldp_port_subtype_values, "Unknown", subtype), 1545 subtype); 1546 1547 switch (subtype) { 1548 case LLDP_PORT_MAC_ADDR_SUBTYPE: 1549 if (tlv_len < 1+6) { 1550 goto trunc; 1551 } 1552 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1)); 1553 break; 1554 1555 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1556 case LLDP_PORT_LOCAL_SUBTYPE: 1557 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1558 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1559 case LLDP_PORT_PORT_COMP_SUBTYPE: 1560 nd_printjnp(ndo, tptr + 1, tlv_len - 1); 1561 break; 1562 1563 case LLDP_PORT_NETWORK_ADDR_SUBTYPE: 1564 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1565 if (network_addr == NULL) { 1566 goto trunc; 1567 } 1568 ND_PRINT("%s", network_addr); 1569 break; 1570 1571 default: 1572 hexdump = TRUE; 1573 break; 1574 } 1575 } 1576 break; 1577 1578 case LLDP_TTL_TLV: 1579 if (ndo->ndo_vflag) { 1580 if (tlv_len < 2) { 1581 goto trunc; 1582 } 1583 ND_PRINT(": TTL %us", GET_BE_U_2(tptr)); 1584 } 1585 break; 1586 1587 case LLDP_PORT_DESCR_TLV: 1588 if (ndo->ndo_vflag) { 1589 ND_PRINT(": "); 1590 nd_printjnp(ndo, tptr, tlv_len); 1591 } 1592 break; 1593 1594 case LLDP_SYSTEM_NAME_TLV: 1595 /* 1596 * The system name is also print in non-verbose mode 1597 * similar to the CDP printer. 1598 */ 1599 ND_PRINT(": "); 1600 nd_printjnp(ndo, tptr, tlv_len); 1601 break; 1602 1603 case LLDP_SYSTEM_DESCR_TLV: 1604 if (ndo->ndo_vflag) { 1605 ND_PRINT("\n\t "); 1606 nd_printjnp(ndo, tptr, tlv_len); 1607 } 1608 break; 1609 1610 case LLDP_SYSTEM_CAP_TLV: 1611 if (ndo->ndo_vflag) { 1612 /* 1613 * XXX - IEEE Std 802.1AB-2009 says the first octet 1614 * if a chassis ID subtype, with the system 1615 * capabilities and enabled capabilities following 1616 * it. 1617 */ 1618 if (tlv_len < 4) { 1619 goto trunc; 1620 } 1621 cap = GET_BE_U_2(tptr); 1622 ena_cap = GET_BE_U_2(tptr + 2); 1623 ND_PRINT("\n\t System Capabilities [%s] (0x%04x)", 1624 bittok2str(lldp_cap_values, "none", cap), cap); 1625 ND_PRINT("\n\t Enabled Capabilities [%s] (0x%04x)", 1626 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap); 1627 } 1628 break; 1629 1630 case LLDP_MGMT_ADDR_TLV: 1631 if (ndo->ndo_vflag) { 1632 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1633 goto trunc; 1634 } 1635 } 1636 break; 1637 1638 case LLDP_PRIVATE_TLV: 1639 if (ndo->ndo_vflag) { 1640 if (tlv_len < 3) { 1641 goto trunc; 1642 } 1643 oui = GET_BE_U_3(tptr); 1644 ND_PRINT(": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui); 1645 1646 switch (oui) { 1647 case OUI_IEEE_8021_PRIVATE: 1648 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1649 break; 1650 case OUI_IEEE_8023_PRIVATE: 1651 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1652 break; 1653 case OUI_IANA: 1654 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len); 1655 break; 1656 case OUI_TIA: 1657 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1658 break; 1659 case OUI_DCBX: 1660 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1661 break; 1662 default: 1663 hexdump = TRUE; 1664 break; 1665 } 1666 } 1667 break; 1668 1669 default: 1670 hexdump = TRUE; 1671 break; 1672 } 1673 1674 /* do we also want to see a hex dump ? */ 1675 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1676 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1677 } 1678 1679 tlen -= tlv_len; 1680 tptr += tlv_len; 1681 } 1682 return; 1683 trunc: 1684 nd_print_trunc(ndo); 1685 } 1686