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 #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 { 0, NULL}, 594 }; 595 596 #define NO_OF_BITS 8 597 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6 598 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25 599 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25 600 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6 601 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5 602 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9 603 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8 604 605 #define LLDP_IANA_SUBTYPE_MUDURL 1 606 607 static const struct tok lldp_iana_subtype_values[] = { 608 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" }, 609 { 0, NULL } 610 }; 611 612 613 static void 614 print_ets_priority_assignment_table(netdissect_options *ndo, 615 const u_char *ptr) 616 { 617 ND_PRINT((ndo, "\n\t Priority Assignment Table")); 618 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 619 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 620 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4, 621 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f)); 622 } 623 624 static void 625 print_tc_bandwidth_table(netdissect_options *ndo, 626 const u_char *ptr) 627 { 628 ND_PRINT((ndo, "\n\t TC Bandwidth Table")); 629 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7")); 630 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 631 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 632 } 633 634 static void 635 print_tsa_assignment_table(netdissect_options *ndo, 636 const u_char *ptr) 637 { 638 ND_PRINT((ndo, "\n\t TSA Assignment Table")); 639 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7")); 640 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 641 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 642 } 643 644 /* 645 * Print IEEE 802.1 private extensions. (802.1AB annex E) 646 */ 647 static int 648 lldp_private_8021_print(netdissect_options *ndo, 649 const u_char *tptr, u_int tlv_len) 650 { 651 int subtype, hexdump = FALSE; 652 u_int sublen; 653 u_int tval; 654 u_int i; 655 656 if (tlv_len < 4) { 657 return hexdump; 658 } 659 subtype = *(tptr+3); 660 661 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 662 tok2str(lldp_8021_subtype_values, "unknown", subtype), 663 subtype)); 664 665 switch (subtype) { 666 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 667 if (tlv_len < 6) { 668 return hexdump; 669 } 670 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u", 671 EXTRACT_16BITS(tptr + 4))); 672 break; 673 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 674 if (tlv_len < 7) { 675 return hexdump; 676 } 677 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 678 EXTRACT_16BITS(tptr+5), 679 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)), 680 *(tptr + 4))); 681 break; 682 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 683 if (tlv_len < 6) { 684 return hexdump; 685 } 686 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4))); 687 if (tlv_len < 7) { 688 return hexdump; 689 } 690 sublen = *(tptr+6); 691 if (tlv_len < 7+sublen) { 692 return hexdump; 693 } 694 ND_PRINT((ndo, "\n\t vlan name: ")); 695 safeputs(ndo, tptr + 7, sublen); 696 break; 697 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 698 if (tlv_len < 5) { 699 return hexdump; 700 } 701 sublen = *(tptr+4); 702 if (tlv_len < 5+sublen) { 703 return hexdump; 704 } 705 ND_PRINT((ndo, "\n\t protocol identity: ")); 706 safeputs(ndo, tptr + 5, sublen); 707 break; 708 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 709 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 710 return hexdump; 711 } 712 tval=*(tptr+4); 713 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator")); 714 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 715 ND_PRINT((ndo, "\n\t Value : ")); 716 for(i=0;i<NO_OF_BITS;i++) 717 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 718 tval=*(tptr+5); 719 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator")); 720 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 721 ND_PRINT((ndo, "\n\t Value : ")); 722 for(i=0;i<NO_OF_BITS;i++) 723 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 724 break; 725 726 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 727 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 728 return hexdump; 729 } 730 tval=*(tptr+4); 731 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d", 732 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07)); 733 734 /*Print Priority Assignment Table*/ 735 print_ets_priority_assignment_table(ndo, tptr + 5); 736 737 /*Print TC Bandwidth Table*/ 738 print_tc_bandwidth_table(ndo, tptr + 9); 739 740 /* Print TSA Assignment Table */ 741 print_tsa_assignment_table(ndo, tptr + 17); 742 743 break; 744 745 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 746 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 747 return hexdump; 748 } 749 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 750 /*Print Priority Assignment Table */ 751 print_ets_priority_assignment_table(ndo, tptr + 5); 752 /*Print TC Bandwidth Table */ 753 print_tc_bandwidth_table(ndo, tptr + 9); 754 /* Print TSA Assignment Table */ 755 print_tsa_assignment_table(ndo, tptr + 17); 756 break; 757 758 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 759 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 760 return hexdump; 761 } 762 tval=*(tptr+4); 763 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ", 764 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f))); 765 ND_PRINT((ndo, "\n\t PFC Enable")); 766 tval=*(tptr+5); 767 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 768 ND_PRINT((ndo, "\n\t Value : ")); 769 for(i=0;i<NO_OF_BITS;i++) 770 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 771 break; 772 773 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 774 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 775 return hexdump; 776 } 777 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 778 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 779 return hexdump; 780 } 781 /* Length of Application Priority Table */ 782 sublen=tlv_len-5; 783 if(sublen%3!=0){ 784 return hexdump; 785 } 786 i=0; 787 ND_PRINT((ndo, "\n\t Application Priority Table")); 788 while(i<sublen) { 789 tval=*(tptr+i+5); 790 ND_PRINT((ndo, "\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u", 791 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07), 792 EXTRACT_16BITS(tptr + i + 5))); 793 i=i+3; 794 } 795 break; 796 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 797 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 798 return hexdump; 799 } 800 ND_PRINT((ndo, "\n\t EVB Bridge Status")); 801 tval=*(tptr+4); 802 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d", 803 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01)); 804 ND_PRINT((ndo, "\n\t EVB Station Status")); 805 tval=*(tptr+5); 806 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d", 807 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03)); 808 tval=*(tptr+6); 809 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f)); 810 tval=*(tptr+7); 811 ND_PRINT((ndo, "EVB Mode: %s [%d]", 812 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6)); 813 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f)); 814 tval=*(tptr+8); 815 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f)); 816 break; 817 818 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 819 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 820 return hexdump; 821 } 822 tval=*(tptr+4); 823 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ", 824 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01)); 825 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff)); 826 sublen=tlv_len-8; 827 if(sublen%3!=0) { 828 return hexdump; 829 } 830 i=0; 831 while(i<sublen) { 832 tval=EXTRACT_24BITS(tptr+i+8); 833 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d", 834 tval >> 12, tval & 0x000fff)); 835 i=i+3; 836 } 837 break; 838 839 default: 840 hexdump = TRUE; 841 break; 842 } 843 844 return hexdump; 845 } 846 847 /* 848 * Print IEEE 802.3 private extensions. (802.3bc) 849 */ 850 static int 851 lldp_private_8023_print(netdissect_options *ndo, 852 const u_char *tptr, u_int tlv_len) 853 { 854 int subtype, hexdump = FALSE; 855 856 if (tlv_len < 4) { 857 return hexdump; 858 } 859 subtype = *(tptr+3); 860 861 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 862 tok2str(lldp_8023_subtype_values, "unknown", subtype), 863 subtype)); 864 865 switch (subtype) { 866 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 867 if (tlv_len < 9) { 868 return hexdump; 869 } 870 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)", 871 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)), 872 *(tptr + 4))); 873 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)", 874 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)), 875 EXTRACT_16BITS(tptr + 5))); 876 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)", 877 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)), 878 EXTRACT_16BITS(tptr + 7))); 879 break; 880 881 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 882 if (tlv_len < 7) { 883 return hexdump; 884 } 885 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s", 886 bittok2str(lldp_mdi_values, "none", *(tptr+4)), 887 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)), 888 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6)))); 889 break; 890 891 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 892 if (tlv_len < 9) { 893 return hexdump; 894 } 895 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u", 896 bittok2str(lldp_aggregation_values, "none", *(tptr+4)), 897 EXTRACT_32BITS(tptr + 5))); 898 break; 899 900 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 901 if (tlv_len < 6) { 902 return hexdump; 903 } 904 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4))); 905 break; 906 907 default: 908 hexdump = TRUE; 909 break; 910 } 911 912 return hexdump; 913 } 914 915 /* 916 * Extract 34bits of latitude/longitude coordinates. 917 */ 918 static uint64_t 919 lldp_extract_latlon(const u_char *tptr) 920 { 921 uint64_t latlon; 922 923 latlon = *tptr & 0x3; 924 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1); 925 926 return latlon; 927 } 928 929 /* objects defined in IANA subtype 00 00 5e 930 * (right now there is only one) 931 */ 932 933 934 static int 935 lldp_private_iana_print(netdissect_options *ndo, 936 const u_char *tptr, u_int tlv_len) 937 { 938 int subtype, hexdump = FALSE; 939 940 if (tlv_len < 8) { 941 return hexdump; 942 } 943 subtype = *(tptr+3); 944 945 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 946 tok2str(lldp_iana_subtype_values, "unknown", subtype), 947 subtype)); 948 949 switch (subtype) { 950 case LLDP_IANA_SUBTYPE_MUDURL: 951 ND_PRINT((ndo, "\n\t MUD-URL=")); 952 (void)fn_printn(ndo, tptr+4, tlv_len-4, NULL); 953 break; 954 default: 955 hexdump=TRUE; 956 } 957 958 return hexdump; 959 } 960 961 962 963 /* 964 * Print private TIA extensions. 965 */ 966 static int 967 lldp_private_tia_print(netdissect_options *ndo, 968 const u_char *tptr, u_int tlv_len) 969 { 970 int subtype, hexdump = FALSE; 971 uint8_t location_format; 972 uint16_t power_val; 973 u_int lci_len; 974 uint8_t ca_type, ca_len; 975 976 if (tlv_len < 4) { 977 return hexdump; 978 } 979 subtype = *(tptr+3); 980 981 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 982 tok2str(lldp_tia_subtype_values, "unknown", subtype), 983 subtype)); 984 985 switch (subtype) { 986 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 987 if (tlv_len < 7) { 988 return hexdump; 989 } 990 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)", 991 bittok2str(lldp_tia_capabilities_values, "none", 992 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4))); 993 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)", 994 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)), 995 *(tptr + 6))); 996 break; 997 998 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 999 if (tlv_len < 8) { 1000 return hexdump; 1001 } 1002 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)", 1003 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)), 1004 *(tptr + 4))); 1005 ND_PRINT((ndo, ", Flags [%s]", bittok2str( 1006 lldp_tia_network_policy_bits_values, "none", *(tptr + 5)))); 1007 ND_PRINT((ndo, "\n\t Vlan id %u", 1008 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5)))); 1009 ND_PRINT((ndo, ", L2 priority %u", 1010 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6)))); 1011 ND_PRINT((ndo, ", DSCP value %u", 1012 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6)))); 1013 break; 1014 1015 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 1016 if (tlv_len < 5) { 1017 return hexdump; 1018 } 1019 location_format = *(tptr+4); 1020 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)", 1021 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 1022 location_format)); 1023 1024 switch (location_format) { 1025 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 1026 if (tlv_len < 21) { 1027 return hexdump; 1028 } 1029 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64, 1030 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5))); 1031 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64, 1032 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10))); 1033 ND_PRINT((ndo, "\n\t Altitude type %s (%u)", 1034 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)), 1035 (*(tptr + 15) >> 4))); 1036 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x", 1037 (EXTRACT_16BITS(tptr+15)>>6)&0x3f, 1038 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff)))); 1039 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)", 1040 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)), 1041 *(tptr + 20))); 1042 break; 1043 1044 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1045 if (tlv_len < 6) { 1046 return hexdump; 1047 } 1048 lci_len = *(tptr+5); 1049 if (lci_len < 3) { 1050 return hexdump; 1051 } 1052 if (tlv_len < 7+lci_len) { 1053 return hexdump; 1054 } 1055 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1056 lci_len, 1057 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)), 1058 *(tptr + 6))); 1059 1060 /* Country code */ 1061 safeputs(ndo, tptr + 7, 2); 1062 1063 lci_len = lci_len-3; 1064 tptr = tptr + 9; 1065 1066 /* Decode each civic address element */ 1067 while (lci_len > 0) { 1068 if (lci_len < 2) { 1069 return hexdump; 1070 } 1071 ca_type = *(tptr); 1072 ca_len = *(tptr+1); 1073 1074 tptr += 2; 1075 lci_len -= 2; 1076 1077 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ", 1078 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1079 ca_type, ca_len)); 1080 1081 /* basic sanity check */ 1082 if ( ca_type == 0 || ca_len == 0) { 1083 return hexdump; 1084 } 1085 if (lci_len < ca_len) { 1086 return hexdump; 1087 } 1088 1089 safeputs(ndo, tptr, ca_len); 1090 tptr += ca_len; 1091 lci_len -= ca_len; 1092 } 1093 break; 1094 1095 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1096 ND_PRINT((ndo, "\n\t ECS ELIN id ")); 1097 safeputs(ndo, tptr + 5, tlv_len - 5); 1098 break; 1099 1100 default: 1101 ND_PRINT((ndo, "\n\t Location ID ")); 1102 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1103 } 1104 break; 1105 1106 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1107 if (tlv_len < 7) { 1108 return hexdump; 1109 } 1110 ND_PRINT((ndo, "\n\t Power type [%s]", 1111 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device")); 1112 ND_PRINT((ndo, ", Power source [%s]", 1113 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4))); 1114 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)", 1115 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f), 1116 *(tptr + 4) & 0x0f)); 1117 power_val = EXTRACT_16BITS(tptr+5); 1118 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1119 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10)); 1120 } else { 1121 ND_PRINT((ndo, ", Power %u (Reserved)", power_val)); 1122 } 1123 break; 1124 1125 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1126 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1127 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1128 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1129 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1130 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1131 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1132 ND_PRINT((ndo, "\n\t %s ", 1133 tok2str(lldp_tia_inventory_values, "unknown", subtype))); 1134 safeputs(ndo, tptr + 4, tlv_len - 4); 1135 break; 1136 1137 default: 1138 hexdump = TRUE; 1139 break; 1140 } 1141 1142 return hexdump; 1143 } 1144 1145 /* 1146 * Print DCBX Protocol fields (V 1.01). 1147 */ 1148 static int 1149 lldp_private_dcbx_print(netdissect_options *ndo, 1150 const u_char *pptr, u_int len) 1151 { 1152 int subtype, hexdump = FALSE; 1153 uint8_t tval; 1154 uint16_t tlv; 1155 uint32_t i, pgval, uval; 1156 u_int tlen, tlv_type, tlv_len; 1157 const u_char *tptr, *mptr; 1158 1159 if (len < 4) { 1160 return hexdump; 1161 } 1162 subtype = *(pptr+3); 1163 1164 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 1165 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1166 subtype)); 1167 1168 /* by passing old version */ 1169 if (subtype == LLDP_DCBX_SUBTYPE_1) 1170 return TRUE; 1171 1172 tptr = pptr + 4; 1173 tlen = len - 4; 1174 1175 while (tlen >= sizeof(tlv)) { 1176 1177 ND_TCHECK2(*tptr, sizeof(tlv)); 1178 1179 tlv = EXTRACT_16BITS(tptr); 1180 1181 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1182 tlv_len = LLDP_EXTRACT_LEN(tlv); 1183 hexdump = FALSE; 1184 1185 tlen -= sizeof(tlv); 1186 tptr += sizeof(tlv); 1187 1188 /* loop check */ 1189 if (!tlv_type || !tlv_len) { 1190 break; 1191 } 1192 1193 ND_TCHECK2(*tptr, tlv_len); 1194 if (tlen < tlv_len) { 1195 goto trunc; 1196 } 1197 1198 /* decode every tlv */ 1199 switch (tlv_type) { 1200 case LLDP_DCBX_CONTROL_TLV: 1201 if (tlv_len < 10) { 1202 goto trunc; 1203 } 1204 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)", 1205 LLDP_DCBX_CONTROL_TLV, tlv_len)); 1206 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1207 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1208 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2))); 1209 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d", 1210 EXTRACT_32BITS(tptr + 6))); 1211 break; 1212 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1213 if (tlv_len < 17) { 1214 goto trunc; 1215 } 1216 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)", 1217 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len)); 1218 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1219 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1220 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1221 tval = *(tptr+2); 1222 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1223 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1224 (tval & 0x20) ? 1 : 0)); 1225 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1226 ND_PRINT((ndo, "\n\t Priority Allocation")); 1227 1228 /* 1229 * Array of 8 4-bit priority group ID values; we fetch all 1230 * 32 bits and extract each nibble. 1231 */ 1232 pgval = EXTRACT_32BITS(tptr+4); 1233 for (i = 0; i <= 7; i++) { 1234 ND_PRINT((ndo, "\n\t PgId_%d: %d", 1235 i, (pgval >> (28 - 4 * i)) & 0xF)); 1236 } 1237 ND_PRINT((ndo, "\n\t Priority Group Allocation")); 1238 for (i = 0; i <= 7; i++) 1239 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i))); 1240 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8))); 1241 break; 1242 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1243 if (tlv_len < 6) { 1244 goto trunc; 1245 } 1246 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control")); 1247 ND_PRINT((ndo, " (type 0x%x, length %d)", 1248 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len)); 1249 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1250 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1251 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1252 tval = *(tptr+2); 1253 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1254 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1255 (tval & 0x20) ? 1 : 0)); 1256 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1257 tval = *(tptr+4); 1258 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4))); 1259 for (i = 0; i <= 7; i++) 1260 ND_PRINT((ndo, "\n\t Priority Bit %d: %s", 1261 i, (tval & (1 << i)) ? "Enabled" : "Disabled")); 1262 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5))); 1263 break; 1264 case LLDP_DCBX_APPLICATION_TLV: 1265 if (tlv_len < 4) { 1266 goto trunc; 1267 } 1268 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)", 1269 LLDP_DCBX_APPLICATION_TLV, tlv_len)); 1270 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1271 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1272 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1273 tval = *(tptr+2); 1274 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1275 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1276 (tval & 0x20) ? 1 : 0)); 1277 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1278 tval = tlv_len - 4; 1279 mptr = tptr + 4; 1280 while (tval >= 6) { 1281 ND_PRINT((ndo, "\n\t Application Value")); 1282 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x", 1283 EXTRACT_16BITS(mptr))); 1284 uval = EXTRACT_24BITS(mptr+2); 1285 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s", 1286 (uval >> 22), 1287 (uval >> 22) ? "Socket Number" : "L2 EtherType")); 1288 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff)); 1289 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5))); 1290 tval = tval - 6; 1291 mptr = mptr + 6; 1292 } 1293 break; 1294 default: 1295 hexdump = TRUE; 1296 break; 1297 } 1298 1299 /* do we also want to see a hex dump ? */ 1300 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1301 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1302 } 1303 1304 tlen -= tlv_len; 1305 tptr += tlv_len; 1306 } 1307 1308 trunc: 1309 return hexdump; 1310 } 1311 1312 static char * 1313 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1314 { 1315 uint8_t af; 1316 static char buf[BUFSIZE]; 1317 const char * (*pfunc)(netdissect_options *, const u_char *); 1318 1319 if (len < 1) 1320 return NULL; 1321 len--; 1322 af = *tptr; 1323 switch (af) { 1324 case AFNUM_INET: 1325 if (len < 4) 1326 return NULL; 1327 /* This cannot be assigned to ipaddr_string(), which is a macro. */ 1328 pfunc = getname; 1329 break; 1330 case AFNUM_INET6: 1331 if (len < 16) 1332 return NULL; 1333 /* This cannot be assigned to ip6addr_string(), which is a macro. */ 1334 pfunc = getname6; 1335 break; 1336 case AFNUM_802: 1337 if (len < 6) 1338 return NULL; 1339 pfunc = etheraddr_string; 1340 break; 1341 default: 1342 pfunc = NULL; 1343 break; 1344 } 1345 1346 if (!pfunc) { 1347 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1348 tok2str(af_values, "Unknown", af), af); 1349 } else { 1350 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1351 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1352 } 1353 1354 return buf; 1355 } 1356 1357 static int 1358 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1359 const u_char *pptr, u_int len) 1360 { 1361 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1362 const u_char *tptr; 1363 u_int tlen; 1364 char *mgmt_addr; 1365 1366 tlen = len; 1367 tptr = pptr; 1368 1369 if (tlen < 1) { 1370 return 0; 1371 } 1372 mgmt_addr_len = *tptr++; 1373 tlen--; 1374 1375 if (tlen < mgmt_addr_len) { 1376 return 0; 1377 } 1378 1379 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1380 if (mgmt_addr == NULL) { 1381 return 0; 1382 } 1383 ND_PRINT((ndo, "\n\t Management Address length %u, %s", 1384 mgmt_addr_len, mgmt_addr)); 1385 tptr += mgmt_addr_len; 1386 tlen -= mgmt_addr_len; 1387 1388 if (tlen < LLDP_INTF_NUM_LEN) { 1389 return 0; 1390 } 1391 1392 intf_num_subtype = *tptr; 1393 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u", 1394 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1395 intf_num_subtype, 1396 EXTRACT_32BITS(tptr + 1))); 1397 1398 tptr += LLDP_INTF_NUM_LEN; 1399 tlen -= LLDP_INTF_NUM_LEN; 1400 1401 /* 1402 * The OID is optional. 1403 */ 1404 if (tlen) { 1405 oid_len = *tptr; 1406 1407 if (tlen < 1U + oid_len) { 1408 return 0; 1409 } 1410 if (oid_len) { 1411 ND_PRINT((ndo, "\n\t OID length %u", oid_len)); 1412 safeputs(ndo, tptr + 1, oid_len); 1413 } 1414 } 1415 1416 return 1; 1417 } 1418 1419 void 1420 lldp_print(netdissect_options *ndo, 1421 register const u_char *pptr, register u_int len) 1422 { 1423 uint8_t subtype; 1424 uint16_t tlv, cap, ena_cap; 1425 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1426 const u_char *tptr; 1427 char *network_addr; 1428 1429 tptr = pptr; 1430 tlen = len; 1431 1432 ND_PRINT((ndo, "LLDP, length %u", len)); 1433 1434 while (tlen >= sizeof(tlv)) { 1435 1436 ND_TCHECK2(*tptr, sizeof(tlv)); 1437 1438 tlv = EXTRACT_16BITS(tptr); 1439 1440 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1441 tlv_len = LLDP_EXTRACT_LEN(tlv); 1442 hexdump = FALSE; 1443 1444 tlen -= sizeof(tlv); 1445 tptr += sizeof(tlv); 1446 1447 if (ndo->ndo_vflag) { 1448 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u", 1449 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1450 tlv_type, tlv_len)); 1451 } 1452 1453 /* infinite loop check */ 1454 if (!tlv_type || !tlv_len) { 1455 break; 1456 } 1457 1458 ND_TCHECK2(*tptr, tlv_len); 1459 if (tlen < tlv_len) { 1460 goto trunc; 1461 } 1462 1463 switch (tlv_type) { 1464 1465 case LLDP_CHASSIS_ID_TLV: 1466 if (ndo->ndo_vflag) { 1467 if (tlv_len < 2) { 1468 goto trunc; 1469 } 1470 subtype = *tptr; 1471 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1472 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1473 subtype)); 1474 1475 switch (subtype) { 1476 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1477 if (tlv_len < 1+6) { 1478 goto trunc; 1479 } 1480 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1481 break; 1482 1483 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1484 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1485 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1486 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1487 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1488 safeputs(ndo, tptr + 1, tlv_len - 1); 1489 break; 1490 1491 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1492 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1493 if (network_addr == NULL) { 1494 goto trunc; 1495 } 1496 ND_PRINT((ndo, "%s", network_addr)); 1497 break; 1498 1499 default: 1500 hexdump = TRUE; 1501 break; 1502 } 1503 } 1504 break; 1505 1506 case LLDP_PORT_ID_TLV: 1507 if (ndo->ndo_vflag) { 1508 if (tlv_len < 2) { 1509 goto trunc; 1510 } 1511 subtype = *tptr; 1512 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1513 tok2str(lldp_port_subtype_values, "Unknown", subtype), 1514 subtype)); 1515 1516 switch (subtype) { 1517 case LLDP_PORT_MAC_ADDR_SUBTYPE: 1518 if (tlv_len < 1+6) { 1519 goto trunc; 1520 } 1521 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1522 break; 1523 1524 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1525 case LLDP_PORT_LOCAL_SUBTYPE: 1526 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1527 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1528 case LLDP_PORT_PORT_COMP_SUBTYPE: 1529 safeputs(ndo, tptr + 1, tlv_len - 1); 1530 break; 1531 1532 case LLDP_PORT_NETWORK_ADDR_SUBTYPE: 1533 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1534 if (network_addr == NULL) { 1535 goto trunc; 1536 } 1537 ND_PRINT((ndo, "%s", network_addr)); 1538 break; 1539 1540 default: 1541 hexdump = TRUE; 1542 break; 1543 } 1544 } 1545 break; 1546 1547 case LLDP_TTL_TLV: 1548 if (ndo->ndo_vflag) { 1549 if (tlv_len < 2) { 1550 goto trunc; 1551 } 1552 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr))); 1553 } 1554 break; 1555 1556 case LLDP_PORT_DESCR_TLV: 1557 if (ndo->ndo_vflag) { 1558 ND_PRINT((ndo, ": ")); 1559 safeputs(ndo, tptr, tlv_len); 1560 } 1561 break; 1562 1563 case LLDP_SYSTEM_NAME_TLV: 1564 /* 1565 * The system name is also print in non-verbose mode 1566 * similar to the CDP printer. 1567 */ 1568 ND_PRINT((ndo, ": ")); 1569 safeputs(ndo, tptr, tlv_len); 1570 break; 1571 1572 case LLDP_SYSTEM_DESCR_TLV: 1573 if (ndo->ndo_vflag) { 1574 ND_PRINT((ndo, "\n\t ")); 1575 safeputs(ndo, tptr, tlv_len); 1576 } 1577 break; 1578 1579 case LLDP_SYSTEM_CAP_TLV: 1580 if (ndo->ndo_vflag) { 1581 /* 1582 * XXX - IEEE Std 802.1AB-2009 says the first octet 1583 * if a chassis ID subtype, with the system 1584 * capabilities and enabled capabilities following 1585 * it. 1586 */ 1587 if (tlv_len < 4) { 1588 goto trunc; 1589 } 1590 cap = EXTRACT_16BITS(tptr); 1591 ena_cap = EXTRACT_16BITS(tptr+2); 1592 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)", 1593 bittok2str(lldp_cap_values, "none", cap), cap)); 1594 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)", 1595 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap)); 1596 } 1597 break; 1598 1599 case LLDP_MGMT_ADDR_TLV: 1600 if (ndo->ndo_vflag) { 1601 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1602 goto trunc; 1603 } 1604 } 1605 break; 1606 1607 case LLDP_PRIVATE_TLV: 1608 if (ndo->ndo_vflag) { 1609 if (tlv_len < 3) { 1610 goto trunc; 1611 } 1612 oui = EXTRACT_24BITS(tptr); 1613 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui)); 1614 1615 switch (oui) { 1616 case OUI_IEEE_8021_PRIVATE: 1617 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1618 break; 1619 case OUI_IEEE_8023_PRIVATE: 1620 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1621 break; 1622 case OUI_IANA: 1623 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len); 1624 break; 1625 case OUI_TIA: 1626 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1627 break; 1628 case OUI_DCBX: 1629 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1630 break; 1631 default: 1632 hexdump = TRUE; 1633 break; 1634 } 1635 } 1636 break; 1637 1638 default: 1639 hexdump = TRUE; 1640 break; 1641 } 1642 1643 /* do we also want to see a hex dump ? */ 1644 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1645 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1646 } 1647 1648 tlen -= tlv_len; 1649 tptr += tlv_len; 1650 } 1651 return; 1652 trunc: 1653 ND_PRINT((ndo, "\n\t[|LLDP]")); 1654 } 1655 1656 /* 1657 * Local Variables: 1658 * c-style: whitesmith 1659 * c-basic-offset: 4 1660 * End: 1661 */ 1662