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 1.9 2017/09/08 14:01:13 christos Exp $"); 25 #endif 26 27 #ifdef HAVE_CONFIG_H 28 #include "config.h" 29 #endif 30 31 #include <netdissect-stdinc.h> 32 33 #include <stdio.h> 34 35 #include "netdissect.h" 36 #include "extract.h" 37 #include "addrtoname.h" 38 #include "af.h" 39 #include "oui.h" 40 41 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) 42 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) 43 44 /* 45 * TLV type codes 46 */ 47 #define LLDP_END_TLV 0 48 #define LLDP_CHASSIS_ID_TLV 1 49 #define LLDP_PORT_ID_TLV 2 50 #define LLDP_TTL_TLV 3 51 #define LLDP_PORT_DESCR_TLV 4 52 #define LLDP_SYSTEM_NAME_TLV 5 53 #define LLDP_SYSTEM_DESCR_TLV 6 54 #define LLDP_SYSTEM_CAP_TLV 7 55 #define LLDP_MGMT_ADDR_TLV 8 56 #define LLDP_PRIVATE_TLV 127 57 58 static const struct tok lldp_tlv_values[] = { 59 { LLDP_END_TLV, "End" }, 60 { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, 61 { LLDP_PORT_ID_TLV, "Port ID" }, 62 { LLDP_TTL_TLV, "Time to Live" }, 63 { LLDP_PORT_DESCR_TLV, "Port Description" }, 64 { LLDP_SYSTEM_NAME_TLV, "System Name" }, 65 { LLDP_SYSTEM_DESCR_TLV, "System Description" }, 66 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, 67 { LLDP_MGMT_ADDR_TLV, "Management Address" }, 68 { LLDP_PRIVATE_TLV, "Organization specific" }, 69 { 0, NULL} 70 }; 71 72 /* 73 * Chassis ID subtypes 74 */ 75 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 76 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 77 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 78 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 79 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 80 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 81 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 82 83 static const struct tok lldp_chassis_subtype_values[] = { 84 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, 85 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, 86 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, 87 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, 88 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, 89 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, 90 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, 91 { 0, NULL} 92 }; 93 94 /* 95 * Port ID subtypes 96 */ 97 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 98 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 99 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 100 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 101 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 102 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 103 #define LLDP_PORT_LOCAL_SUBTYPE 7 104 105 static const struct tok lldp_port_subtype_values[] = { 106 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, 107 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, 108 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, 109 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, 110 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, 111 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, 112 { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, 113 { 0, NULL} 114 }; 115 116 /* 117 * System Capabilities 118 */ 119 #define LLDP_CAP_OTHER (1 << 0) 120 #define LLDP_CAP_REPEATER (1 << 1) 121 #define LLDP_CAP_BRIDGE (1 << 2) 122 #define LLDP_CAP_WLAN_AP (1 << 3) 123 #define LLDP_CAP_ROUTER (1 << 4) 124 #define LLDP_CAP_PHONE (1 << 5) 125 #define LLDP_CAP_DOCSIS (1 << 6) 126 #define LLDP_CAP_STATION_ONLY (1 << 7) 127 128 static const struct tok lldp_cap_values[] = { 129 { LLDP_CAP_OTHER, "Other"}, 130 { LLDP_CAP_REPEATER, "Repeater"}, 131 { LLDP_CAP_BRIDGE, "Bridge"}, 132 { LLDP_CAP_WLAN_AP, "WLAN AP"}, 133 { LLDP_CAP_ROUTER, "Router"}, 134 { LLDP_CAP_PHONE, "Telephone"}, 135 { LLDP_CAP_DOCSIS, "Docsis"}, 136 { LLDP_CAP_STATION_ONLY, "Station Only"}, 137 { 0, NULL} 138 }; 139 140 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 141 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 142 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 143 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 144 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8 145 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9 146 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10 147 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11 148 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12 149 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13 150 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14 151 152 static const struct tok lldp_8021_subtype_values[] = { 153 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, 154 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, 155 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, 156 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, 157 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"}, 158 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"}, 159 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"}, 160 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"}, 161 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"}, 162 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"}, 163 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"}, 164 { 0, NULL} 165 }; 166 167 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1) 168 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2) 169 170 static const struct tok lldp_8021_port_protocol_id_values[] = { 171 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"}, 172 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"}, 173 { 0, NULL} 174 }; 175 176 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1 177 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2 178 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3 179 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4 180 181 static const struct tok lldp_8023_subtype_values[] = { 182 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"}, 183 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"}, 184 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"}, 185 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"}, 186 { 0, NULL} 187 }; 188 189 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1 190 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2 191 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3 192 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4 193 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5 194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6 195 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7 196 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8 197 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9 198 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10 199 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11 200 201 static const struct tok lldp_tia_subtype_values[] = { 202 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" }, 203 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" }, 204 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" }, 205 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" }, 206 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" }, 207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" }, 208 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" }, 209 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" }, 210 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" }, 211 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" }, 212 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" }, 213 { 0, NULL} 214 }; 215 216 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1 217 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2 218 219 static const struct tok lldp_tia_location_altitude_type_values[] = { 220 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"}, 221 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"}, 222 { 0, NULL} 223 }; 224 225 /* ANSI/TIA-1057 - Annex B */ 226 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1 227 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2 228 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3 229 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4 230 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5 231 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6 232 233 static const struct tok lldp_tia_location_lci_catype_values[] = { 234 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"}, 235 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"}, 236 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"}, 237 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"}, 238 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"}, 239 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"}, 240 { 0, NULL} 241 }; 242 243 static const struct tok lldp_tia_location_lci_what_values[] = { 244 { 0, "location of DHCP server"}, 245 { 1, "location of the network element believed to be closest to the client"}, 246 { 2, "location of the client"}, 247 { 0, NULL} 248 }; 249 250 /* 251 * From RFC 3636 - dot3MauType 252 */ 253 #define LLDP_MAU_TYPE_UNKNOWN 0 254 #define LLDP_MAU_TYPE_AUI 1 255 #define LLDP_MAU_TYPE_10BASE_5 2 256 #define LLDP_MAU_TYPE_FOIRL 3 257 #define LLDP_MAU_TYPE_10BASE_2 4 258 #define LLDP_MAU_TYPE_10BASE_T 5 259 #define LLDP_MAU_TYPE_10BASE_FP 6 260 #define LLDP_MAU_TYPE_10BASE_FB 7 261 #define LLDP_MAU_TYPE_10BASE_FL 8 262 #define LLDP_MAU_TYPE_10BROAD36 9 263 #define LLDP_MAU_TYPE_10BASE_T_HD 10 264 #define LLDP_MAU_TYPE_10BASE_T_FD 11 265 #define LLDP_MAU_TYPE_10BASE_FL_HD 12 266 #define LLDP_MAU_TYPE_10BASE_FL_FD 13 267 #define LLDP_MAU_TYPE_100BASE_T4 14 268 #define LLDP_MAU_TYPE_100BASE_TX_HD 15 269 #define LLDP_MAU_TYPE_100BASE_TX_FD 16 270 #define LLDP_MAU_TYPE_100BASE_FX_HD 17 271 #define LLDP_MAU_TYPE_100BASE_FX_FD 18 272 #define LLDP_MAU_TYPE_100BASE_T2_HD 19 273 #define LLDP_MAU_TYPE_100BASE_T2_FD 20 274 #define LLDP_MAU_TYPE_1000BASE_X_HD 21 275 #define LLDP_MAU_TYPE_1000BASE_X_FD 22 276 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23 277 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24 278 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25 279 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26 280 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27 281 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28 282 #define LLDP_MAU_TYPE_1000BASE_T_HD 29 283 #define LLDP_MAU_TYPE_1000BASE_T_FD 30 284 #define LLDP_MAU_TYPE_10GBASE_X 31 285 #define LLDP_MAU_TYPE_10GBASE_LX4 32 286 #define LLDP_MAU_TYPE_10GBASE_R 33 287 #define LLDP_MAU_TYPE_10GBASE_ER 34 288 #define LLDP_MAU_TYPE_10GBASE_LR 35 289 #define LLDP_MAU_TYPE_10GBASE_SR 36 290 #define LLDP_MAU_TYPE_10GBASE_W 37 291 #define LLDP_MAU_TYPE_10GBASE_EW 38 292 #define LLDP_MAU_TYPE_10GBASE_LW 39 293 #define LLDP_MAU_TYPE_10GBASE_SW 40 294 295 static const struct tok lldp_mau_types_values[] = { 296 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"}, 297 { LLDP_MAU_TYPE_AUI, "AUI"}, 298 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"}, 299 { LLDP_MAU_TYPE_FOIRL, "FOIRL"}, 300 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"}, 301 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"}, 302 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"}, 303 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"}, 304 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"}, 305 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"}, 306 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"}, 307 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"}, 308 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"}, 309 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"}, 310 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"}, 311 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"}, 312 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"}, 313 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"}, 314 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"}, 315 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"}, 316 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"}, 317 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"}, 318 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"}, 319 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"}, 320 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"}, 321 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"}, 322 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"}, 323 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"}, 324 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"}, 325 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"}, 326 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"}, 327 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"}, 328 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"}, 329 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"}, 330 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"}, 331 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"}, 332 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"}, 333 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"}, 334 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"}, 335 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"}, 336 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"}, 337 { 0, NULL} 338 }; 339 340 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0) 341 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1) 342 343 static const struct tok lldp_8023_autonegotiation_values[] = { 344 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"}, 345 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"}, 346 { 0, NULL} 347 }; 348 349 #define LLDP_TIA_CAPABILITY_MED (1 << 0) 350 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1) 351 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2) 352 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3) 353 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4) 354 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5) 355 356 static const struct tok lldp_tia_capabilities_values[] = { 357 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"}, 358 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"}, 359 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"}, 360 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"}, 361 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"}, 362 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"}, 363 { 0, NULL} 364 }; 365 366 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1 367 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2 368 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3 369 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4 370 371 static const struct tok lldp_tia_device_type_values[] = { 372 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"}, 373 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"}, 374 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"}, 375 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"}, 376 { 0, NULL} 377 }; 378 379 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1 380 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2 381 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3 382 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4 383 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5 384 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6 385 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7 386 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8 387 388 static const struct tok lldp_tia_application_type_values[] = { 389 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"}, 390 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"}, 391 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"}, 392 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"}, 393 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"}, 394 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"}, 395 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"}, 396 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"}, 397 { 0, NULL} 398 }; 399 400 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5) 401 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6) 402 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7) 403 404 static const struct tok lldp_tia_network_policy_bits_values[] = { 405 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"}, 406 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"}, 407 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"}, 408 { 0, NULL} 409 }; 410 411 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1) 412 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6) 413 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f) 414 415 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1 416 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2 417 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3 418 419 static const struct tok lldp_tia_location_data_format_values[] = { 420 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"}, 421 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"}, 422 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"}, 423 { 0, NULL} 424 }; 425 426 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1 427 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2 428 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3 429 430 static const struct tok lldp_tia_location_datum_type_values[] = { 431 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"}, 432 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"}, 433 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"}, 434 { 0, NULL} 435 }; 436 437 #define LLDP_TIA_POWER_SOURCE_PSE 1 438 #define LLDP_TIA_POWER_SOURCE_LOCAL 2 439 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3 440 441 static const struct tok lldp_tia_power_source_values[] = { 442 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"}, 443 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"}, 444 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"}, 445 { 0, NULL} 446 }; 447 448 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1 449 #define LLDP_TIA_POWER_PRIORITY_HIGH 2 450 #define LLDP_TIA_POWER_PRIORITY_LOW 3 451 452 static const struct tok lldp_tia_power_priority_values[] = { 453 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"}, 454 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"}, 455 { LLDP_TIA_POWER_PRIORITY_LOW, "low"}, 456 { 0, NULL} 457 }; 458 459 #define LLDP_TIA_POWER_VAL_MAX 1024 460 461 static const struct tok lldp_tia_inventory_values[] = { 462 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" }, 463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" }, 464 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" }, 465 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" }, 466 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" }, 467 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" }, 468 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" }, 469 { 0, NULL} 470 }; 471 472 /* 473 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits 474 */ 475 #define LLDP_MAU_PMD_OTHER (1 << 15) 476 #define LLDP_MAU_PMD_10BASE_T (1 << 14) 477 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13) 478 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12) 479 #define LLDP_MAU_PMD_100BASE_TX (1 << 11) 480 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10) 481 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9) 482 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8) 483 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7) 484 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6) 485 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5) 486 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4) 487 #define LLDP_MAU_PMD_1000BASE_X (1 << 3) 488 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2) 489 #define LLDP_MAU_PMD_1000BASE_T (1 << 1) 490 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0) 491 492 static const struct tok lldp_pmd_capability_values[] = { 493 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"}, 494 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"}, 495 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"}, 496 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"}, 497 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"}, 498 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"}, 499 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"}, 500 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"}, 501 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"}, 502 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"}, 503 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"}, 504 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"}, 505 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"}, 506 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"}, 507 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"}, 508 { 0, NULL} 509 }; 510 511 #define LLDP_MDI_PORT_CLASS (1 << 0) 512 #define LLDP_MDI_POWER_SUPPORT (1 << 1) 513 #define LLDP_MDI_POWER_STATE (1 << 2) 514 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3) 515 516 static const struct tok lldp_mdi_values[] = { 517 { LLDP_MDI_PORT_CLASS, "PSE"}, 518 { LLDP_MDI_POWER_SUPPORT, "supported"}, 519 { LLDP_MDI_POWER_STATE, "enabled"}, 520 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"}, 521 { 0, NULL} 522 }; 523 524 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1 525 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2 526 527 static const struct tok lldp_mdi_power_pairs_values[] = { 528 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"}, 529 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"}, 530 { 0, NULL} 531 }; 532 533 #define LLDP_MDI_POWER_CLASS0 1 534 #define LLDP_MDI_POWER_CLASS1 2 535 #define LLDP_MDI_POWER_CLASS2 3 536 #define LLDP_MDI_POWER_CLASS3 4 537 #define LLDP_MDI_POWER_CLASS4 5 538 539 static const struct tok lldp_mdi_power_class_values[] = { 540 { LLDP_MDI_POWER_CLASS0, "class0"}, 541 { LLDP_MDI_POWER_CLASS1, "class1"}, 542 { LLDP_MDI_POWER_CLASS2, "class2"}, 543 { LLDP_MDI_POWER_CLASS3, "class3"}, 544 { LLDP_MDI_POWER_CLASS4, "class4"}, 545 { 0, NULL} 546 }; 547 548 #define LLDP_AGGREGATION_CAPABILTIY (1 << 0) 549 #define LLDP_AGGREGATION_STATUS (1 << 1) 550 551 static const struct tok lldp_aggregation_values[] = { 552 { LLDP_AGGREGATION_CAPABILTIY, "supported"}, 553 { LLDP_AGGREGATION_STATUS, "enabled"}, 554 { 0, NULL} 555 }; 556 557 /* 558 * DCBX protocol subtypes. 559 */ 560 #define LLDP_DCBX_SUBTYPE_1 1 561 #define LLDP_DCBX_SUBTYPE_2 2 562 563 static const struct tok lldp_dcbx_subtype_values[] = { 564 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" }, 565 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" }, 566 { 0, NULL} 567 }; 568 569 #define LLDP_DCBX_CONTROL_TLV 1 570 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2 571 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3 572 #define LLDP_DCBX_APPLICATION_TLV 4 573 574 /* 575 * Interface numbering subtypes. 576 */ 577 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2 578 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3 579 580 static const struct tok lldp_intf_numb_subtype_values[] = { 581 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" }, 582 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" }, 583 { 0, NULL} 584 }; 585 586 #define LLDP_INTF_NUM_LEN 5 587 588 #define LLDP_EVB_MODE_NOT_SUPPORTED 0 589 #define LLDP_EVB_MODE_EVB_BRIDGE 1 590 #define LLDP_EVB_MODE_EVB_STATION 2 591 #define LLDP_EVB_MODE_RESERVED 3 592 593 static const struct tok lldp_evb_mode_values[]={ 594 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"}, 595 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"}, 596 { LLDP_EVB_MODE_EVB_STATION, "EVB Staion"}, 597 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"}, 598 { 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((ndo, "\n\t Priority Assignment Table")); 623 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 624 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 625 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4, 626 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f)); 627 } 628 629 static void 630 print_tc_bandwidth_table(netdissect_options *ndo, 631 const u_char *ptr) 632 { 633 ND_PRINT((ndo, "\n\t TC Bandwidth Table")); 634 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7")); 635 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 636 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 637 } 638 639 static void 640 print_tsa_assignment_table(netdissect_options *ndo, 641 const u_char *ptr) 642 { 643 ND_PRINT((ndo, "\n\t TSA Assignment Table")); 644 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7")); 645 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 646 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 647 } 648 649 /* 650 * Print IEEE 802.1 private extensions. (802.1AB annex E) 651 */ 652 static int 653 lldp_private_8021_print(netdissect_options *ndo, 654 const u_char *tptr, u_int tlv_len) 655 { 656 int subtype, hexdump = FALSE; 657 u_int sublen; 658 u_int tval; 659 u_int i; 660 661 if (tlv_len < 4) { 662 return hexdump; 663 } 664 subtype = *(tptr+3); 665 666 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 667 tok2str(lldp_8021_subtype_values, "unknown", subtype), 668 subtype)); 669 670 switch (subtype) { 671 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 672 if (tlv_len < 6) { 673 return hexdump; 674 } 675 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u", 676 EXTRACT_16BITS(tptr + 4))); 677 break; 678 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 679 if (tlv_len < 7) { 680 return hexdump; 681 } 682 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 683 EXTRACT_16BITS(tptr+5), 684 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)), 685 *(tptr + 4))); 686 break; 687 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 688 if (tlv_len < 6) { 689 return hexdump; 690 } 691 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4))); 692 if (tlv_len < 7) { 693 return hexdump; 694 } 695 sublen = *(tptr+6); 696 if (tlv_len < 7+sublen) { 697 return hexdump; 698 } 699 ND_PRINT((ndo, "\n\t vlan name: ")); 700 safeputs(ndo, tptr + 7, sublen); 701 break; 702 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 703 if (tlv_len < 5) { 704 return hexdump; 705 } 706 sublen = *(tptr+4); 707 if (tlv_len < 5+sublen) { 708 return hexdump; 709 } 710 ND_PRINT((ndo, "\n\t protocol identity: ")); 711 safeputs(ndo, tptr + 5, sublen); 712 break; 713 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 714 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 715 return hexdump; 716 } 717 tval=*(tptr+4); 718 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator")); 719 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 720 ND_PRINT((ndo, "\n\t Value : ")); 721 for(i=0;i<NO_OF_BITS;i++) 722 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 723 tval=*(tptr+5); 724 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator")); 725 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 726 ND_PRINT((ndo, "\n\t Value : ")); 727 for(i=0;i<NO_OF_BITS;i++) 728 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 729 break; 730 731 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 732 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 733 return hexdump; 734 } 735 tval=*(tptr+4); 736 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d", 737 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07)); 738 739 /*Print Priority Assignment Table*/ 740 print_ets_priority_assignment_table(ndo, tptr + 5); 741 742 /*Print TC Bandwidth Table*/ 743 print_tc_bandwidth_table(ndo, tptr + 9); 744 745 /* Print TSA Assignment Table */ 746 print_tsa_assignment_table(ndo, tptr + 17); 747 748 break; 749 750 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 751 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 752 return hexdump; 753 } 754 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 755 /*Print Priority Assignment Table */ 756 print_ets_priority_assignment_table(ndo, tptr + 5); 757 /*Print TC Bandwidth Table */ 758 print_tc_bandwidth_table(ndo, tptr + 9); 759 /* Print TSA Assignment Table */ 760 print_tsa_assignment_table(ndo, tptr + 17); 761 break; 762 763 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 764 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 765 return hexdump; 766 } 767 tval=*(tptr+4); 768 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ", 769 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f))); 770 ND_PRINT((ndo, "\n\t PFC Enable")); 771 tval=*(tptr+5); 772 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 773 ND_PRINT((ndo, "\n\t Value : ")); 774 for(i=0;i<NO_OF_BITS;i++) 775 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 776 break; 777 778 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 779 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 780 return hexdump; 781 } 782 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 783 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 784 return hexdump; 785 } 786 /* Length of Application Priority Table */ 787 sublen=tlv_len-5; 788 if(sublen%3!=0){ 789 return hexdump; 790 } 791 i=0; 792 ND_PRINT((ndo, "\n\t Application Priority Table")); 793 while(i<sublen) { 794 tval=*(tptr+i+5); 795 ND_PRINT((ndo, "\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u", 796 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07), 797 EXTRACT_16BITS(tptr + i + 5))); 798 i=i+3; 799 } 800 break; 801 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 802 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 803 return hexdump; 804 } 805 ND_PRINT((ndo, "\n\t EVB Bridge Status")); 806 tval=*(tptr+4); 807 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d", 808 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01)); 809 ND_PRINT((ndo, "\n\t EVB Station Status")); 810 tval=*(tptr+5); 811 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d", 812 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03)); 813 tval=*(tptr+6); 814 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f)); 815 tval=*(tptr+7); 816 ND_PRINT((ndo, "EVB Mode: %s [%d]", 817 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6)); 818 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f)); 819 tval=*(tptr+8); 820 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f)); 821 break; 822 823 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 824 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 825 return hexdump; 826 } 827 tval=*(tptr+4); 828 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ", 829 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01)); 830 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff)); 831 sublen=tlv_len-8; 832 if(sublen%3!=0) { 833 return hexdump; 834 } 835 i=0; 836 while(i<sublen) { 837 tval=EXTRACT_24BITS(tptr+i+8); 838 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d", 839 tval >> 12, tval & 0x000fff)); 840 i=i+3; 841 } 842 break; 843 844 default: 845 hexdump = TRUE; 846 break; 847 } 848 849 return hexdump; 850 } 851 852 /* 853 * Print IEEE 802.3 private extensions. (802.3bc) 854 */ 855 static int 856 lldp_private_8023_print(netdissect_options *ndo, 857 const u_char *tptr, u_int tlv_len) 858 { 859 int subtype, hexdump = FALSE; 860 861 if (tlv_len < 4) { 862 return hexdump; 863 } 864 subtype = *(tptr+3); 865 866 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 867 tok2str(lldp_8023_subtype_values, "unknown", subtype), 868 subtype)); 869 870 switch (subtype) { 871 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 872 if (tlv_len < 9) { 873 return hexdump; 874 } 875 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)", 876 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)), 877 *(tptr + 4))); 878 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)", 879 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)), 880 EXTRACT_16BITS(tptr + 5))); 881 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)", 882 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)), 883 EXTRACT_16BITS(tptr + 7))); 884 break; 885 886 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 887 if (tlv_len < 7) { 888 return hexdump; 889 } 890 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s", 891 bittok2str(lldp_mdi_values, "none", *(tptr+4)), 892 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)), 893 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6)))); 894 break; 895 896 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 897 if (tlv_len < 9) { 898 return hexdump; 899 } 900 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u", 901 bittok2str(lldp_aggregation_values, "none", *(tptr+4)), 902 EXTRACT_32BITS(tptr + 5))); 903 break; 904 905 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 906 if (tlv_len < 6) { 907 return hexdump; 908 } 909 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4))); 910 break; 911 912 default: 913 hexdump = TRUE; 914 break; 915 } 916 917 return hexdump; 918 } 919 920 /* 921 * Extract 34bits of latitude/longitude coordinates. 922 */ 923 static uint64_t 924 lldp_extract_latlon(const u_char *tptr) 925 { 926 uint64_t latlon; 927 928 latlon = *tptr & 0x3; 929 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1); 930 931 return latlon; 932 } 933 934 /* objects defined in IANA subtype 00 00 5e 935 * (right now there is only one) 936 */ 937 938 939 static int 940 lldp_private_iana_print(netdissect_options *ndo, 941 const u_char *tptr, u_int tlv_len) 942 { 943 int subtype, hexdump = FALSE; 944 945 if (tlv_len < 8) { 946 return hexdump; 947 } 948 subtype = *(tptr+3); 949 950 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 951 tok2str(lldp_iana_subtype_values, "unknown", subtype), 952 subtype)); 953 954 switch (subtype) { 955 case LLDP_IANA_SUBTYPE_MUDURL: 956 ND_PRINT((ndo, "\n\t MUD-URL=")); 957 (void)fn_printn(ndo, tptr+4, tlv_len-4, NULL); 958 break; 959 default: 960 hexdump=TRUE; 961 } 962 963 return hexdump; 964 } 965 966 967 968 /* 969 * Print private TIA extensions. 970 */ 971 static int 972 lldp_private_tia_print(netdissect_options *ndo, 973 const u_char *tptr, u_int tlv_len) 974 { 975 int subtype, hexdump = FALSE; 976 uint8_t location_format; 977 uint16_t power_val; 978 u_int lci_len; 979 uint8_t ca_type, ca_len; 980 981 if (tlv_len < 4) { 982 return hexdump; 983 } 984 subtype = *(tptr+3); 985 986 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 987 tok2str(lldp_tia_subtype_values, "unknown", subtype), 988 subtype)); 989 990 switch (subtype) { 991 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 992 if (tlv_len < 7) { 993 return hexdump; 994 } 995 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)", 996 bittok2str(lldp_tia_capabilities_values, "none", 997 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4))); 998 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)", 999 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)), 1000 *(tptr + 6))); 1001 break; 1002 1003 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 1004 if (tlv_len < 8) { 1005 return hexdump; 1006 } 1007 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)", 1008 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)), 1009 *(tptr + 4))); 1010 ND_PRINT((ndo, ", Flags [%s]", bittok2str( 1011 lldp_tia_network_policy_bits_values, "none", *(tptr + 5)))); 1012 ND_PRINT((ndo, "\n\t Vlan id %u", 1013 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5)))); 1014 ND_PRINT((ndo, ", L2 priority %u", 1015 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6)))); 1016 ND_PRINT((ndo, ", DSCP value %u", 1017 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6)))); 1018 break; 1019 1020 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 1021 if (tlv_len < 5) { 1022 return hexdump; 1023 } 1024 location_format = *(tptr+4); 1025 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)", 1026 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 1027 location_format)); 1028 1029 switch (location_format) { 1030 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 1031 if (tlv_len < 21) { 1032 return hexdump; 1033 } 1034 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64, 1035 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5))); 1036 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64, 1037 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10))); 1038 ND_PRINT((ndo, "\n\t Altitude type %s (%u)", 1039 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)), 1040 (*(tptr + 15) >> 4))); 1041 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x", 1042 (EXTRACT_16BITS(tptr+15)>>6)&0x3f, 1043 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff)))); 1044 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)", 1045 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)), 1046 *(tptr + 20))); 1047 break; 1048 1049 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1050 if (tlv_len < 6) { 1051 return hexdump; 1052 } 1053 lci_len = *(tptr+5); 1054 if (lci_len < 3) { 1055 return hexdump; 1056 } 1057 if (tlv_len < 7+lci_len) { 1058 return hexdump; 1059 } 1060 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1061 lci_len, 1062 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)), 1063 *(tptr + 6))); 1064 1065 /* Country code */ 1066 safeputs(ndo, tptr + 7, 2); 1067 1068 lci_len = lci_len-3; 1069 tptr = tptr + 9; 1070 1071 /* Decode each civic address element */ 1072 while (lci_len > 0) { 1073 if (lci_len < 2) { 1074 return hexdump; 1075 } 1076 ca_type = *(tptr); 1077 ca_len = *(tptr+1); 1078 1079 tptr += 2; 1080 lci_len -= 2; 1081 1082 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ", 1083 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1084 ca_type, ca_len)); 1085 1086 /* basic sanity check */ 1087 if ( ca_type == 0 || ca_len == 0) { 1088 return hexdump; 1089 } 1090 if (lci_len < ca_len) { 1091 return hexdump; 1092 } 1093 1094 safeputs(ndo, tptr, ca_len); 1095 tptr += ca_len; 1096 lci_len -= ca_len; 1097 } 1098 break; 1099 1100 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1101 ND_PRINT((ndo, "\n\t ECS ELIN id ")); 1102 safeputs(ndo, tptr + 5, tlv_len - 5); 1103 break; 1104 1105 default: 1106 ND_PRINT((ndo, "\n\t Location ID ")); 1107 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1108 } 1109 break; 1110 1111 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1112 if (tlv_len < 7) { 1113 return hexdump; 1114 } 1115 ND_PRINT((ndo, "\n\t Power type [%s]", 1116 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device")); 1117 ND_PRINT((ndo, ", Power source [%s]", 1118 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4))); 1119 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)", 1120 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f), 1121 *(tptr + 4) & 0x0f)); 1122 power_val = EXTRACT_16BITS(tptr+5); 1123 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1124 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10)); 1125 } else { 1126 ND_PRINT((ndo, ", Power %u (Reserved)", power_val)); 1127 } 1128 break; 1129 1130 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1131 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1132 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1133 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1134 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1135 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1136 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1137 ND_PRINT((ndo, "\n\t %s ", 1138 tok2str(lldp_tia_inventory_values, "unknown", subtype))); 1139 safeputs(ndo, tptr + 4, tlv_len - 4); 1140 break; 1141 1142 default: 1143 hexdump = TRUE; 1144 break; 1145 } 1146 1147 return hexdump; 1148 } 1149 1150 /* 1151 * Print DCBX Protocol fields (V 1.01). 1152 */ 1153 static int 1154 lldp_private_dcbx_print(netdissect_options *ndo, 1155 const u_char *pptr, u_int len) 1156 { 1157 int subtype, hexdump = FALSE; 1158 uint8_t tval; 1159 uint16_t tlv; 1160 uint32_t i, pgval, uval; 1161 u_int tlen, tlv_type, tlv_len; 1162 const u_char *tptr, *mptr; 1163 1164 if (len < 4) { 1165 return hexdump; 1166 } 1167 subtype = *(pptr+3); 1168 1169 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 1170 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1171 subtype)); 1172 1173 /* by passing old version */ 1174 if (subtype == LLDP_DCBX_SUBTYPE_1) 1175 return TRUE; 1176 1177 tptr = pptr + 4; 1178 tlen = len - 4; 1179 1180 while (tlen >= sizeof(tlv)) { 1181 1182 ND_TCHECK2(*tptr, sizeof(tlv)); 1183 1184 tlv = EXTRACT_16BITS(tptr); 1185 1186 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1187 tlv_len = LLDP_EXTRACT_LEN(tlv); 1188 hexdump = FALSE; 1189 1190 tlen -= sizeof(tlv); 1191 tptr += sizeof(tlv); 1192 1193 /* loop check */ 1194 if (!tlv_type || !tlv_len) { 1195 break; 1196 } 1197 1198 ND_TCHECK2(*tptr, tlv_len); 1199 if (tlen < tlv_len) { 1200 goto trunc; 1201 } 1202 1203 /* decode every tlv */ 1204 switch (tlv_type) { 1205 case LLDP_DCBX_CONTROL_TLV: 1206 if (tlv_len < 10) { 1207 goto trunc; 1208 } 1209 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)", 1210 LLDP_DCBX_CONTROL_TLV, tlv_len)); 1211 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1212 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1213 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2))); 1214 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d", 1215 EXTRACT_32BITS(tptr + 6))); 1216 break; 1217 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1218 if (tlv_len < 17) { 1219 goto trunc; 1220 } 1221 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)", 1222 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len)); 1223 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1224 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1225 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1226 tval = *(tptr+2); 1227 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1228 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1229 (tval & 0x20) ? 1 : 0)); 1230 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1231 ND_PRINT((ndo, "\n\t Priority Allocation")); 1232 1233 /* 1234 * Array of 8 4-bit priority group ID values; we fetch all 1235 * 32 bits and extract each nibble. 1236 */ 1237 pgval = EXTRACT_32BITS(tptr+4); 1238 for (i = 0; i <= 7; i++) { 1239 ND_PRINT((ndo, "\n\t PgId_%d: %d", 1240 i, (pgval >> (28 - 4 * i)) & 0xF)); 1241 } 1242 ND_PRINT((ndo, "\n\t Priority Group Allocation")); 1243 for (i = 0; i <= 7; i++) 1244 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i))); 1245 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8))); 1246 break; 1247 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1248 if (tlv_len < 6) { 1249 goto trunc; 1250 } 1251 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control")); 1252 ND_PRINT((ndo, " (type 0x%x, length %d)", 1253 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len)); 1254 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1255 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1256 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1257 tval = *(tptr+2); 1258 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1259 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1260 (tval & 0x20) ? 1 : 0)); 1261 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1262 tval = *(tptr+4); 1263 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4))); 1264 for (i = 0; i <= 7; i++) 1265 ND_PRINT((ndo, "\n\t Priority Bit %d: %s", 1266 i, (tval & (1 << i)) ? "Enabled" : "Disabled")); 1267 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5))); 1268 break; 1269 case LLDP_DCBX_APPLICATION_TLV: 1270 if (tlv_len < 4) { 1271 goto trunc; 1272 } 1273 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)", 1274 LLDP_DCBX_APPLICATION_TLV, tlv_len)); 1275 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1276 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1277 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1278 tval = *(tptr+2); 1279 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1280 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1281 (tval & 0x20) ? 1 : 0)); 1282 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1283 tval = tlv_len - 4; 1284 mptr = tptr + 4; 1285 while (tval >= 6) { 1286 ND_PRINT((ndo, "\n\t Application Value")); 1287 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x", 1288 EXTRACT_16BITS(mptr))); 1289 uval = EXTRACT_24BITS(mptr+2); 1290 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s", 1291 (uval >> 22), 1292 (uval >> 22) ? "Socket Number" : "L2 EtherType")); 1293 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff)); 1294 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5))); 1295 tval = tval - 6; 1296 mptr = mptr + 6; 1297 } 1298 break; 1299 default: 1300 hexdump = TRUE; 1301 break; 1302 } 1303 1304 /* do we also want to see a hex dump ? */ 1305 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1306 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1307 } 1308 1309 tlen -= tlv_len; 1310 tptr += tlv_len; 1311 } 1312 1313 trunc: 1314 return hexdump; 1315 } 1316 1317 static char * 1318 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1319 { 1320 uint8_t af; 1321 static char buf[BUFSIZE]; 1322 const char * (*pfunc)(netdissect_options *, const u_char *); 1323 1324 if (len < 1) 1325 return NULL; 1326 len--; 1327 af = *tptr; 1328 switch (af) { 1329 case AFNUM_INET: 1330 if (len < 4) 1331 return NULL; 1332 /* This cannot be assigned to ipaddr_string(), which is a macro. */ 1333 pfunc = getname; 1334 break; 1335 case AFNUM_INET6: 1336 if (len < 16) 1337 return NULL; 1338 /* This cannot be assigned to ip6addr_string(), which is a macro. */ 1339 pfunc = getname6; 1340 break; 1341 case AFNUM_802: 1342 if (len < 6) 1343 return NULL; 1344 pfunc = etheraddr_string; 1345 break; 1346 default: 1347 pfunc = NULL; 1348 break; 1349 } 1350 1351 if (!pfunc) { 1352 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1353 tok2str(af_values, "Unknown", af), af); 1354 } else { 1355 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1356 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1357 } 1358 1359 return buf; 1360 } 1361 1362 static int 1363 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1364 const u_char *pptr, u_int len) 1365 { 1366 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1367 const u_char *tptr; 1368 u_int tlen; 1369 char *mgmt_addr; 1370 1371 tlen = len; 1372 tptr = pptr; 1373 1374 if (tlen < 1) { 1375 return 0; 1376 } 1377 mgmt_addr_len = *tptr++; 1378 tlen--; 1379 1380 if (tlen < mgmt_addr_len) { 1381 return 0; 1382 } 1383 1384 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1385 if (mgmt_addr == NULL) { 1386 return 0; 1387 } 1388 ND_PRINT((ndo, "\n\t Management Address length %u, %s", 1389 mgmt_addr_len, mgmt_addr)); 1390 tptr += mgmt_addr_len; 1391 tlen -= mgmt_addr_len; 1392 1393 if (tlen < LLDP_INTF_NUM_LEN) { 1394 return 0; 1395 } 1396 1397 intf_num_subtype = *tptr; 1398 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u", 1399 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1400 intf_num_subtype, 1401 EXTRACT_32BITS(tptr + 1))); 1402 1403 tptr += LLDP_INTF_NUM_LEN; 1404 tlen -= LLDP_INTF_NUM_LEN; 1405 1406 /* 1407 * The OID is optional. 1408 */ 1409 if (tlen) { 1410 oid_len = *tptr; 1411 1412 if (tlen < 1U + oid_len) { 1413 return 0; 1414 } 1415 if (oid_len) { 1416 ND_PRINT((ndo, "\n\t OID length %u", oid_len)); 1417 safeputs(ndo, tptr + 1, oid_len); 1418 } 1419 } 1420 1421 return 1; 1422 } 1423 1424 void 1425 lldp_print(netdissect_options *ndo, 1426 register const u_char *pptr, register u_int len) 1427 { 1428 uint8_t subtype; 1429 uint16_t tlv, cap, ena_cap; 1430 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1431 const u_char *tptr; 1432 char *network_addr; 1433 1434 tptr = pptr; 1435 tlen = len; 1436 1437 ND_PRINT((ndo, "LLDP, length %u", len)); 1438 1439 while (tlen >= sizeof(tlv)) { 1440 1441 ND_TCHECK2(*tptr, sizeof(tlv)); 1442 1443 tlv = EXTRACT_16BITS(tptr); 1444 1445 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1446 tlv_len = LLDP_EXTRACT_LEN(tlv); 1447 hexdump = FALSE; 1448 1449 tlen -= sizeof(tlv); 1450 tptr += sizeof(tlv); 1451 1452 if (ndo->ndo_vflag) { 1453 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u", 1454 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1455 tlv_type, tlv_len)); 1456 } 1457 1458 /* infinite loop check */ 1459 if (!tlv_type || !tlv_len) { 1460 break; 1461 } 1462 1463 ND_TCHECK2(*tptr, tlv_len); 1464 if (tlen < tlv_len) { 1465 goto trunc; 1466 } 1467 1468 switch (tlv_type) { 1469 1470 case LLDP_CHASSIS_ID_TLV: 1471 if (ndo->ndo_vflag) { 1472 if (tlv_len < 2) { 1473 goto trunc; 1474 } 1475 subtype = *tptr; 1476 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1477 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1478 subtype)); 1479 1480 switch (subtype) { 1481 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1482 if (tlv_len < 1+6) { 1483 goto trunc; 1484 } 1485 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1486 break; 1487 1488 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1489 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1490 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1491 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1492 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1493 safeputs(ndo, tptr + 1, tlv_len - 1); 1494 break; 1495 1496 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1497 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1498 if (network_addr == NULL) { 1499 goto trunc; 1500 } 1501 ND_PRINT((ndo, "%s", network_addr)); 1502 break; 1503 1504 default: 1505 hexdump = TRUE; 1506 break; 1507 } 1508 } 1509 break; 1510 1511 case LLDP_PORT_ID_TLV: 1512 if (ndo->ndo_vflag) { 1513 if (tlv_len < 2) { 1514 goto trunc; 1515 } 1516 subtype = *tptr; 1517 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1518 tok2str(lldp_port_subtype_values, "Unknown", subtype), 1519 subtype)); 1520 1521 switch (subtype) { 1522 case LLDP_PORT_MAC_ADDR_SUBTYPE: 1523 if (tlv_len < 1+6) { 1524 goto trunc; 1525 } 1526 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1527 break; 1528 1529 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1530 case LLDP_PORT_LOCAL_SUBTYPE: 1531 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1532 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1533 case LLDP_PORT_PORT_COMP_SUBTYPE: 1534 safeputs(ndo, tptr + 1, tlv_len - 1); 1535 break; 1536 1537 case LLDP_PORT_NETWORK_ADDR_SUBTYPE: 1538 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1539 if (network_addr == NULL) { 1540 goto trunc; 1541 } 1542 ND_PRINT((ndo, "%s", network_addr)); 1543 break; 1544 1545 default: 1546 hexdump = TRUE; 1547 break; 1548 } 1549 } 1550 break; 1551 1552 case LLDP_TTL_TLV: 1553 if (ndo->ndo_vflag) { 1554 if (tlv_len < 2) { 1555 goto trunc; 1556 } 1557 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr))); 1558 } 1559 break; 1560 1561 case LLDP_PORT_DESCR_TLV: 1562 if (ndo->ndo_vflag) { 1563 ND_PRINT((ndo, ": ")); 1564 safeputs(ndo, tptr, tlv_len); 1565 } 1566 break; 1567 1568 case LLDP_SYSTEM_NAME_TLV: 1569 /* 1570 * The system name is also print in non-verbose mode 1571 * similar to the CDP printer. 1572 */ 1573 ND_PRINT((ndo, ": ")); 1574 safeputs(ndo, tptr, tlv_len); 1575 break; 1576 1577 case LLDP_SYSTEM_DESCR_TLV: 1578 if (ndo->ndo_vflag) { 1579 ND_PRINT((ndo, "\n\t ")); 1580 safeputs(ndo, tptr, tlv_len); 1581 } 1582 break; 1583 1584 case LLDP_SYSTEM_CAP_TLV: 1585 if (ndo->ndo_vflag) { 1586 /* 1587 * XXX - IEEE Std 802.1AB-2009 says the first octet 1588 * if a chassis ID subtype, with the system 1589 * capabilities and enabled capabilities following 1590 * it. 1591 */ 1592 if (tlv_len < 4) { 1593 goto trunc; 1594 } 1595 cap = EXTRACT_16BITS(tptr); 1596 ena_cap = EXTRACT_16BITS(tptr+2); 1597 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)", 1598 bittok2str(lldp_cap_values, "none", cap), cap)); 1599 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)", 1600 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap)); 1601 } 1602 break; 1603 1604 case LLDP_MGMT_ADDR_TLV: 1605 if (ndo->ndo_vflag) { 1606 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1607 goto trunc; 1608 } 1609 } 1610 break; 1611 1612 case LLDP_PRIVATE_TLV: 1613 if (ndo->ndo_vflag) { 1614 if (tlv_len < 3) { 1615 goto trunc; 1616 } 1617 oui = EXTRACT_24BITS(tptr); 1618 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui)); 1619 1620 switch (oui) { 1621 case OUI_IEEE_8021_PRIVATE: 1622 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1623 break; 1624 case OUI_IEEE_8023_PRIVATE: 1625 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1626 break; 1627 case OUI_IANA: 1628 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len); 1629 break; 1630 case OUI_TIA: 1631 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1632 break; 1633 case OUI_DCBX: 1634 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1635 break; 1636 default: 1637 hexdump = TRUE; 1638 break; 1639 } 1640 } 1641 break; 1642 1643 default: 1644 hexdump = TRUE; 1645 break; 1646 } 1647 1648 /* do we also want to see a hex dump ? */ 1649 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1650 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1651 } 1652 1653 tlen -= tlv_len; 1654 tptr += tlv_len; 1655 } 1656 return; 1657 trunc: 1658 ND_PRINT((ndo, "\n\t[|LLDP]")); 1659 } 1660 1661 /* 1662 * Local Variables: 1663 * c-style: whitesmith 1664 * c-basic-offset: 4 1665 * End: 1666 */ 1667