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