1 /* 2 * Copyright (c) 1998-2007 The TCPDUMP project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that: (1) source code 6 * distributions retain the above copyright notice and this paragraph 7 * in its entirety, and (2) distributions including binary code include 8 * the above copyright notice and this paragraph in its entirety in 9 * the documentation or other materials provided with the distribution. 10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND 11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 * FOR A PARTICULAR PURPOSE. 14 * 15 * support for the IEEE Link Discovery Protocol as per 802.1AB 16 * 17 * Original code by Hannes Gredler (hannes@juniper.net) 18 * IEEE and TIA extensions by Carles Kishimoto <carles.kishimoto@gmail.com> 19 * DCBX extensions by Kaladhar Musunuru <kaladharm@sourceforge.net> 20 */ 21 22 #define NETDISSECT_REWORKED 23 #ifdef HAVE_CONFIG_H 24 #include "config.h" 25 #endif 26 27 #include <tcpdump-stdinc.h> 28 29 #include <stdio.h> 30 31 #include "interface.h" 32 #include "extract.h" 33 #include "addrtoname.h" 34 #include "af.h" 35 #include "oui.h" 36 37 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) 38 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) 39 40 /* 41 * TLV type codes 42 */ 43 #define LLDP_END_TLV 0 44 #define LLDP_CHASSIS_ID_TLV 1 45 #define LLDP_PORT_ID_TLV 2 46 #define LLDP_TTL_TLV 3 47 #define LLDP_PORT_DESCR_TLV 4 48 #define LLDP_SYSTEM_NAME_TLV 5 49 #define LLDP_SYSTEM_DESCR_TLV 6 50 #define LLDP_SYSTEM_CAP_TLV 7 51 #define LLDP_MGMT_ADDR_TLV 8 52 #define LLDP_PRIVATE_TLV 127 53 54 static const struct tok lldp_tlv_values[] = { 55 { LLDP_END_TLV, "End" }, 56 { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, 57 { LLDP_PORT_ID_TLV, "Port ID" }, 58 { LLDP_TTL_TLV, "Time to Live" }, 59 { LLDP_PORT_DESCR_TLV, "Port Description" }, 60 { LLDP_SYSTEM_NAME_TLV, "System Name" }, 61 { LLDP_SYSTEM_DESCR_TLV, "System Description" }, 62 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, 63 { LLDP_MGMT_ADDR_TLV, "Management Address" }, 64 { LLDP_PRIVATE_TLV, "Organization specific" }, 65 { 0, NULL} 66 }; 67 68 /* 69 * Chassis ID subtypes 70 */ 71 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 72 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 73 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 74 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 75 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 76 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 77 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 78 79 static const struct tok lldp_chassis_subtype_values[] = { 80 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, 81 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, 82 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, 83 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, 84 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, 85 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, 86 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, 87 { 0, NULL} 88 }; 89 90 /* 91 * Port ID subtypes 92 */ 93 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 94 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 95 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 96 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 97 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 98 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 99 #define LLDP_PORT_LOCAL_SUBTYPE 7 100 101 static const struct tok lldp_port_subtype_values[] = { 102 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, 103 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, 104 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, 105 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, 106 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, 107 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, 108 { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, 109 { 0, NULL} 110 }; 111 112 /* 113 * System Capabilities 114 */ 115 #define LLDP_CAP_OTHER (1 << 0) 116 #define LLDP_CAP_REPEATER (1 << 1) 117 #define LLDP_CAP_BRIDGE (1 << 2) 118 #define LLDP_CAP_WLAN_AP (1 << 3) 119 #define LLDP_CAP_ROUTER (1 << 4) 120 #define LLDP_CAP_PHONE (1 << 5) 121 #define LLDP_CAP_DOCSIS (1 << 6) 122 #define LLDP_CAP_STATION_ONLY (1 << 7) 123 124 static const struct tok lldp_cap_values[] = { 125 { LLDP_CAP_OTHER, "Other"}, 126 { LLDP_CAP_REPEATER, "Repeater"}, 127 { LLDP_CAP_BRIDGE, "Bridge"}, 128 { LLDP_CAP_WLAN_AP, "WLAN AP"}, 129 { LLDP_CAP_ROUTER, "Router"}, 130 { LLDP_CAP_PHONE, "Telephone"}, 131 { LLDP_CAP_DOCSIS, "Docsis"}, 132 { LLDP_CAP_STATION_ONLY, "Station Only"}, 133 { 0, NULL} 134 }; 135 136 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 137 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 138 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 139 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 140 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8 141 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9 142 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10 143 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11 144 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12 145 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13 146 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14 147 148 static const struct tok lldp_8021_subtype_values[] = { 149 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, 150 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, 151 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, 152 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, 153 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"}, 154 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"}, 155 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"}, 156 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"}, 157 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"}, 158 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"}, 159 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"}, 160 { 0, NULL} 161 }; 162 163 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1) 164 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2) 165 166 static const struct tok lldp_8021_port_protocol_id_values[] = { 167 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"}, 168 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"}, 169 { 0, NULL} 170 }; 171 172 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1 173 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2 174 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3 175 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4 176 177 static const struct tok lldp_8023_subtype_values[] = { 178 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"}, 179 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"}, 180 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"}, 181 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"}, 182 { 0, NULL} 183 }; 184 185 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1 186 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2 187 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3 188 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4 189 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5 190 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6 191 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7 192 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8 193 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9 194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10 195 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11 196 197 static const struct tok lldp_tia_subtype_values[] = { 198 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" }, 199 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" }, 200 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" }, 201 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" }, 202 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" }, 203 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" }, 204 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" }, 205 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" }, 206 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" }, 207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" }, 208 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" }, 209 { 0, NULL} 210 }; 211 212 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1 213 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2 214 215 static const struct tok lldp_tia_location_altitude_type_values[] = { 216 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"}, 217 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"}, 218 { 0, NULL} 219 }; 220 221 /* ANSI/TIA-1057 - Annex B */ 222 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1 223 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2 224 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3 225 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4 226 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5 227 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6 228 229 static const struct tok lldp_tia_location_lci_catype_values[] = { 230 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"}, 231 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"}, 232 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"}, 233 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"}, 234 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"}, 235 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"}, 236 { 0, NULL} 237 }; 238 239 static const struct tok lldp_tia_location_lci_what_values[] = { 240 { 0, "location of DHCP server"}, 241 { 1, "location of the network element believed to be closest to the client"}, 242 { 2, "location of the client"}, 243 { 0, NULL} 244 }; 245 246 /* 247 * From RFC 3636 - dot3MauType 248 */ 249 #define LLDP_MAU_TYPE_UNKNOWN 0 250 #define LLDP_MAU_TYPE_AUI 1 251 #define LLDP_MAU_TYPE_10BASE_5 2 252 #define LLDP_MAU_TYPE_FOIRL 3 253 #define LLDP_MAU_TYPE_10BASE_2 4 254 #define LLDP_MAU_TYPE_10BASE_T 5 255 #define LLDP_MAU_TYPE_10BASE_FP 6 256 #define LLDP_MAU_TYPE_10BASE_FB 7 257 #define LLDP_MAU_TYPE_10BASE_FL 8 258 #define LLDP_MAU_TYPE_10BROAD36 9 259 #define LLDP_MAU_TYPE_10BASE_T_HD 10 260 #define LLDP_MAU_TYPE_10BASE_T_FD 11 261 #define LLDP_MAU_TYPE_10BASE_FL_HD 12 262 #define LLDP_MAU_TYPE_10BASE_FL_FD 13 263 #define LLDP_MAU_TYPE_100BASE_T4 14 264 #define LLDP_MAU_TYPE_100BASE_TX_HD 15 265 #define LLDP_MAU_TYPE_100BASE_TX_FD 16 266 #define LLDP_MAU_TYPE_100BASE_FX_HD 17 267 #define LLDP_MAU_TYPE_100BASE_FX_FD 18 268 #define LLDP_MAU_TYPE_100BASE_T2_HD 19 269 #define LLDP_MAU_TYPE_100BASE_T2_FD 20 270 #define LLDP_MAU_TYPE_1000BASE_X_HD 21 271 #define LLDP_MAU_TYPE_1000BASE_X_FD 22 272 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23 273 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24 274 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25 275 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26 276 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27 277 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28 278 #define LLDP_MAU_TYPE_1000BASE_T_HD 29 279 #define LLDP_MAU_TYPE_1000BASE_T_FD 30 280 #define LLDP_MAU_TYPE_10GBASE_X 31 281 #define LLDP_MAU_TYPE_10GBASE_LX4 32 282 #define LLDP_MAU_TYPE_10GBASE_R 33 283 #define LLDP_MAU_TYPE_10GBASE_ER 34 284 #define LLDP_MAU_TYPE_10GBASE_LR 35 285 #define LLDP_MAU_TYPE_10GBASE_SR 36 286 #define LLDP_MAU_TYPE_10GBASE_W 37 287 #define LLDP_MAU_TYPE_10GBASE_EW 38 288 #define LLDP_MAU_TYPE_10GBASE_LW 39 289 #define LLDP_MAU_TYPE_10GBASE_SW 40 290 291 static const struct tok lldp_mau_types_values[] = { 292 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"}, 293 { LLDP_MAU_TYPE_AUI, "AUI"}, 294 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"}, 295 { LLDP_MAU_TYPE_FOIRL, "FOIRL"}, 296 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"}, 297 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"}, 298 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"}, 299 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"}, 300 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"}, 301 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"}, 302 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"}, 303 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"}, 304 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"}, 305 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"}, 306 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"}, 307 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"}, 308 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"}, 309 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"}, 310 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"}, 311 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"}, 312 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"}, 313 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"}, 314 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"}, 315 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"}, 316 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"}, 317 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"}, 318 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"}, 319 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"}, 320 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"}, 321 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"}, 322 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"}, 323 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"}, 324 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"}, 325 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"}, 326 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"}, 327 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"}, 328 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"}, 329 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"}, 330 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"}, 331 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"}, 332 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"}, 333 { 0, NULL} 334 }; 335 336 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0) 337 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1) 338 339 static const struct tok lldp_8023_autonegotiation_values[] = { 340 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"}, 341 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"}, 342 { 0, NULL} 343 }; 344 345 #define LLDP_TIA_CAPABILITY_MED (1 << 0) 346 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1) 347 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2) 348 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3) 349 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4) 350 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5) 351 352 static const struct tok lldp_tia_capabilities_values[] = { 353 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"}, 354 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"}, 355 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"}, 356 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"}, 357 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"}, 358 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"}, 359 { 0, NULL} 360 }; 361 362 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1 363 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2 364 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3 365 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4 366 367 static const struct tok lldp_tia_device_type_values[] = { 368 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"}, 369 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"}, 370 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"}, 371 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"}, 372 { 0, NULL} 373 }; 374 375 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1 376 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2 377 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3 378 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4 379 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5 380 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6 381 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7 382 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8 383 384 static const struct tok lldp_tia_application_type_values[] = { 385 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"}, 386 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"}, 387 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"}, 388 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"}, 389 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"}, 390 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"}, 391 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"}, 392 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"}, 393 { 0, NULL} 394 }; 395 396 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5) 397 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6) 398 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7) 399 400 static const struct tok lldp_tia_network_policy_bits_values[] = { 401 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"}, 402 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"}, 403 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"}, 404 { 0, NULL} 405 }; 406 407 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1) 408 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6) 409 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f) 410 411 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1 412 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2 413 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3 414 415 static const struct tok lldp_tia_location_data_format_values[] = { 416 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"}, 417 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"}, 418 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"}, 419 { 0, NULL} 420 }; 421 422 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1 423 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2 424 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3 425 426 static const struct tok lldp_tia_location_datum_type_values[] = { 427 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"}, 428 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"}, 429 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"}, 430 { 0, NULL} 431 }; 432 433 #define LLDP_TIA_POWER_SOURCE_PSE 1 434 #define LLDP_TIA_POWER_SOURCE_LOCAL 2 435 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3 436 437 static const struct tok lldp_tia_power_source_values[] = { 438 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"}, 439 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"}, 440 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"}, 441 { 0, NULL} 442 }; 443 444 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1 445 #define LLDP_TIA_POWER_PRIORITY_HIGH 2 446 #define LLDP_TIA_POWER_PRIORITY_LOW 3 447 448 static const struct tok lldp_tia_power_priority_values[] = { 449 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"}, 450 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"}, 451 { LLDP_TIA_POWER_PRIORITY_LOW, "low"}, 452 { 0, NULL} 453 }; 454 455 #define LLDP_TIA_POWER_VAL_MAX 1024 456 457 static const struct tok lldp_tia_inventory_values[] = { 458 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" }, 459 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" }, 460 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" }, 461 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" }, 462 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" }, 463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" }, 464 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" }, 465 { 0, NULL} 466 }; 467 468 /* 469 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits 470 */ 471 #define LLDP_MAU_PMD_OTHER (1 << 15) 472 #define LLDP_MAU_PMD_10BASE_T (1 << 14) 473 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13) 474 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12) 475 #define LLDP_MAU_PMD_100BASE_TX (1 << 11) 476 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10) 477 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9) 478 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8) 479 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7) 480 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6) 481 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5) 482 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4) 483 #define LLDP_MAU_PMD_1000BASE_X (1 << 3) 484 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2) 485 #define LLDP_MAU_PMD_1000BASE_T (1 << 1) 486 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0) 487 488 static const struct tok lldp_pmd_capability_values[] = { 489 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"}, 490 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"}, 491 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"}, 492 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"}, 493 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"}, 494 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"}, 495 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"}, 496 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"}, 497 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"}, 498 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"}, 499 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"}, 500 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"}, 501 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"}, 502 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"}, 503 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"}, 504 { 0, NULL} 505 }; 506 507 #define LLDP_MDI_PORT_CLASS (1 << 0) 508 #define LLDP_MDI_POWER_SUPPORT (1 << 1) 509 #define LLDP_MDI_POWER_STATE (1 << 2) 510 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3) 511 512 static const struct tok lldp_mdi_values[] = { 513 { LLDP_MDI_PORT_CLASS, "PSE"}, 514 { LLDP_MDI_POWER_SUPPORT, "supported"}, 515 { LLDP_MDI_POWER_STATE, "enabled"}, 516 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"}, 517 { 0, NULL} 518 }; 519 520 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1 521 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2 522 523 static const struct tok lldp_mdi_power_pairs_values[] = { 524 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"}, 525 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"}, 526 { 0, NULL} 527 }; 528 529 #define LLDP_MDI_POWER_CLASS0 1 530 #define LLDP_MDI_POWER_CLASS1 2 531 #define LLDP_MDI_POWER_CLASS2 3 532 #define LLDP_MDI_POWER_CLASS3 4 533 #define LLDP_MDI_POWER_CLASS4 5 534 535 static const struct tok lldp_mdi_power_class_values[] = { 536 { LLDP_MDI_POWER_CLASS0, "class0"}, 537 { LLDP_MDI_POWER_CLASS1, "class1"}, 538 { LLDP_MDI_POWER_CLASS2, "class2"}, 539 { LLDP_MDI_POWER_CLASS3, "class3"}, 540 { LLDP_MDI_POWER_CLASS4, "class4"}, 541 { 0, NULL} 542 }; 543 544 #define LLDP_AGGREGATION_CAPABILTIY (1 << 0) 545 #define LLDP_AGGREGATION_STATUS (1 << 1) 546 547 static const struct tok lldp_aggregation_values[] = { 548 { LLDP_AGGREGATION_CAPABILTIY, "supported"}, 549 { LLDP_AGGREGATION_STATUS, "enabled"}, 550 { 0, NULL} 551 }; 552 553 /* 554 * DCBX protocol subtypes. 555 */ 556 #define LLDP_DCBX_SUBTYPE_1 1 557 #define LLDP_DCBX_SUBTYPE_2 2 558 559 static const struct tok lldp_dcbx_subtype_values[] = { 560 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" }, 561 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" }, 562 { 0, NULL} 563 }; 564 565 #define LLDP_DCBX_CONTROL_TLV 1 566 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2 567 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3 568 #define LLDP_DCBX_APPLICATION_TLV 4 569 570 /* 571 * Interface numbering subtypes. 572 */ 573 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2 574 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3 575 576 static const struct tok lldp_intf_numb_subtype_values[] = { 577 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" }, 578 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" }, 579 { 0, NULL} 580 }; 581 582 #define LLDP_INTF_NUM_LEN 5 583 584 #define LLDP_EVB_MODE_NOT_SUPPORTED 0 585 #define LLDP_EVB_MODE_EVB_BRIDGE 1 586 #define LLDP_EVB_MODE_EVB_STATION 2 587 #define LLDP_EVB_MODE_RESERVED 3 588 589 static const struct tok lldp_evb_mode_values[]={ 590 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"}, 591 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"}, 592 { LLDP_EVB_MODE_EVB_STATION, "EVB Staion"}, 593 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"}, 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 static void 606 print_ets_priority_assignment_table(netdissect_options *ndo, 607 const u_char *ptr) 608 { 609 ND_PRINT((ndo, "\n\t Priority Assignment Table")); 610 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 611 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 612 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4, 613 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f)); 614 } 615 616 static void 617 print_tc_bandwidth_table(netdissect_options *ndo, 618 const u_char *ptr) 619 { 620 ND_PRINT((ndo, "\n\t TC Bandwidth Table")); 621 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7")); 622 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 623 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 624 } 625 626 static void 627 print_tsa_assignment_table(netdissect_options *ndo, 628 const u_char *ptr) 629 { 630 ND_PRINT((ndo, "\n\t TSA Assignment Table")); 631 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7")); 632 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 633 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7])); 634 } 635 636 /* 637 * Print IEEE 802.1 private extensions. (802.1AB annex E) 638 */ 639 static int 640 lldp_private_8021_print(netdissect_options *ndo, 641 const u_char *tptr, u_int tlv_len) 642 { 643 int subtype, hexdump = FALSE; 644 u_int sublen; 645 u_int tval; 646 uint8_t i; 647 648 if (tlv_len < 4) { 649 return hexdump; 650 } 651 subtype = *(tptr+3); 652 653 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 654 tok2str(lldp_8021_subtype_values, "unknown", subtype), 655 subtype)); 656 657 switch (subtype) { 658 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 659 if (tlv_len < 6) { 660 return hexdump; 661 } 662 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u", 663 EXTRACT_16BITS(tptr + 4))); 664 break; 665 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 666 if (tlv_len < 7) { 667 return hexdump; 668 } 669 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 670 EXTRACT_16BITS(tptr+5), 671 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)), 672 *(tptr + 4))); 673 break; 674 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 675 if (tlv_len < 6) { 676 return hexdump; 677 } 678 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4))); 679 if (tlv_len < 7) { 680 return hexdump; 681 } 682 sublen = *(tptr+6); 683 if (tlv_len < 7+sublen) { 684 return hexdump; 685 } 686 ND_PRINT((ndo, "\n\t vlan name: ")); 687 safeputs(ndo, tptr + 7, sublen); 688 break; 689 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 690 if (tlv_len < 5) { 691 return hexdump; 692 } 693 sublen = *(tptr+4); 694 if (tlv_len < 5+sublen) { 695 return hexdump; 696 } 697 ND_PRINT((ndo, "\n\t protocol identity: ")); 698 safeputs(ndo, tptr + 5, sublen); 699 break; 700 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 701 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 702 return hexdump; 703 } 704 tval=*(tptr+4); 705 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator")); 706 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 707 ND_PRINT((ndo, "\n\t Value : ")); 708 for(i=0;i<NO_OF_BITS;i++) 709 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 710 tval=*(tptr+5); 711 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator")); 712 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 713 ND_PRINT((ndo, "\n\t Value : ")); 714 for(i=0;i<NO_OF_BITS;i++) 715 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 716 break; 717 718 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 719 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 720 return hexdump; 721 } 722 tval=*(tptr+4); 723 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d", 724 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07)); 725 726 /*Print Priority Assignment Table*/ 727 print_ets_priority_assignment_table(ndo, tptr + 5); 728 729 /*Print TC Bandwidth Table*/ 730 print_tc_bandwidth_table(ndo, tptr + 9); 731 732 /* Print TSA Assignment Table */ 733 print_tsa_assignment_table(ndo, tptr + 17); 734 735 break; 736 737 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 738 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 739 return hexdump; 740 } 741 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 742 /*Print Priority Assignment Table */ 743 print_ets_priority_assignment_table(ndo, tptr + 5); 744 /*Print TC Bandwidth Table */ 745 print_tc_bandwidth_table(ndo, tptr + 9); 746 /* Print TSA Assignment Table */ 747 print_tsa_assignment_table(ndo, tptr + 17); 748 break; 749 750 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 751 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 752 return hexdump; 753 } 754 tval=*(tptr+4); 755 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ", 756 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f))); 757 ND_PRINT((ndo, "\n\t PFC Enable")); 758 tval=*(tptr+5); 759 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7")); 760 ND_PRINT((ndo, "\n\t Value : ")); 761 for(i=0;i<NO_OF_BITS;i++) 762 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01)); 763 break; 764 765 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 766 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 767 return hexdump; 768 } 769 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4))); 770 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 771 return hexdump; 772 } 773 /* Length of Application Priority Table */ 774 sublen=tlv_len-5; 775 if(sublen%3!=0){ 776 return hexdump; 777 } 778 i=0; 779 ND_PRINT((ndo, "\n\t Application Priority Table")); 780 while(i<sublen) { 781 tval=*(tptr+i+5); 782 ND_PRINT((ndo, "\n\t Priority: %d, RES: %d, Sel: %d", 783 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07))); 784 ND_PRINT((ndo, "Protocol ID: %d", EXTRACT_16BITS(tptr + i + 5))); 785 i=i+3; 786 } 787 break; 788 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 789 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 790 return hexdump; 791 } 792 ND_PRINT((ndo, "\n\t EVB Bridge Status")); 793 tval=*(tptr+4); 794 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d", 795 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01)); 796 ND_PRINT((ndo, "\n\t EVB Station Status")); 797 tval=*(tptr+5); 798 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d", 799 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03)); 800 tval=*(tptr+6); 801 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f)); 802 tval=*(tptr+7); 803 ND_PRINT((ndo, "EVB Mode: %s [%d]", 804 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6)); 805 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f)); 806 tval=*(tptr+8); 807 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f)); 808 break; 809 810 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 811 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 812 return hexdump; 813 } 814 tval=*(tptr+4); 815 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ", 816 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01)); 817 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff)); 818 sublen=tlv_len-8; 819 if(sublen%3!=0) { 820 return hexdump; 821 } 822 i=0; 823 while(i<sublen) { 824 tval=EXTRACT_24BITS(tptr+i+8); 825 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d", 826 tval >> 12, tval & 0x000fff)); 827 i=i+3; 828 } 829 break; 830 831 default: 832 hexdump = TRUE; 833 break; 834 } 835 836 return hexdump; 837 } 838 839 /* 840 * Print IEEE 802.3 private extensions. (802.3bc) 841 */ 842 static int 843 lldp_private_8023_print(netdissect_options *ndo, 844 const u_char *tptr, u_int tlv_len) 845 { 846 int subtype, hexdump = FALSE; 847 848 if (tlv_len < 4) { 849 return hexdump; 850 } 851 subtype = *(tptr+3); 852 853 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 854 tok2str(lldp_8023_subtype_values, "unknown", subtype), 855 subtype)); 856 857 switch (subtype) { 858 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 859 if (tlv_len < 9) { 860 return hexdump; 861 } 862 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)", 863 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)), 864 *(tptr + 4))); 865 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)", 866 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)), 867 EXTRACT_16BITS(tptr + 5))); 868 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)", 869 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)), 870 EXTRACT_16BITS(tptr + 7))); 871 break; 872 873 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 874 if (tlv_len < 7) { 875 return hexdump; 876 } 877 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s", 878 bittok2str(lldp_mdi_values, "none", *(tptr+4)), 879 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)), 880 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6)))); 881 break; 882 883 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 884 if (tlv_len < 9) { 885 return hexdump; 886 } 887 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u", 888 bittok2str(lldp_aggregation_values, "none", *(tptr+4)), 889 EXTRACT_32BITS(tptr + 5))); 890 break; 891 892 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 893 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4))); 894 break; 895 896 default: 897 hexdump = TRUE; 898 break; 899 } 900 901 return hexdump; 902 } 903 904 /* 905 * Extract 34bits of latitude/longitude coordinates. 906 */ 907 static uint64_t 908 lldp_extract_latlon(const u_char *tptr) 909 { 910 uint64_t latlon; 911 912 latlon = *tptr & 0x3; 913 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1); 914 915 return latlon; 916 } 917 918 /* 919 * Print private TIA extensions. 920 */ 921 static int 922 lldp_private_tia_print(netdissect_options *ndo, 923 const u_char *tptr, u_int tlv_len) 924 { 925 int subtype, hexdump = FALSE; 926 uint8_t location_format; 927 uint16_t power_val; 928 u_int lci_len; 929 uint8_t ca_type, ca_len; 930 931 if (tlv_len < 4) { 932 return hexdump; 933 } 934 subtype = *(tptr+3); 935 936 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 937 tok2str(lldp_tia_subtype_values, "unknown", subtype), 938 subtype)); 939 940 switch (subtype) { 941 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 942 if (tlv_len < 7) { 943 return hexdump; 944 } 945 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)", 946 bittok2str(lldp_tia_capabilities_values, "none", 947 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4))); 948 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)", 949 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)), 950 *(tptr + 6))); 951 break; 952 953 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 954 if (tlv_len < 8) { 955 return hexdump; 956 } 957 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)", 958 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)), 959 *(tptr + 4))); 960 ND_PRINT((ndo, ", Flags [%s]", bittok2str( 961 lldp_tia_network_policy_bits_values, "none", *(tptr + 5)))); 962 ND_PRINT((ndo, "\n\t Vlan id %u", 963 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5)))); 964 ND_PRINT((ndo, ", L2 priority %u", 965 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6)))); 966 ND_PRINT((ndo, ", DSCP value %u", 967 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6)))); 968 break; 969 970 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 971 if (tlv_len < 5) { 972 return hexdump; 973 } 974 location_format = *(tptr+4); 975 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)", 976 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 977 location_format)); 978 979 switch (location_format) { 980 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 981 if (tlv_len < 21) { 982 return hexdump; 983 } 984 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64, 985 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5))); 986 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64, 987 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10))); 988 ND_PRINT((ndo, "\n\t Altitude type %s (%u)", 989 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)), 990 (*(tptr + 15) >> 4))); 991 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x", 992 (EXTRACT_16BITS(tptr+15)>>6)&0x3f, 993 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff)))); 994 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)", 995 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)), 996 *(tptr + 20))); 997 break; 998 999 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1000 if (tlv_len < 6) { 1001 return hexdump; 1002 } 1003 lci_len = *(tptr+5); 1004 if (lci_len < 3) { 1005 return hexdump; 1006 } 1007 if (tlv_len < 7+lci_len) { 1008 return hexdump; 1009 } 1010 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1011 lci_len, 1012 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)), 1013 *(tptr + 6))); 1014 1015 /* Country code */ 1016 safeputs(ndo, tptr + 7, 2); 1017 1018 lci_len = lci_len-3; 1019 tptr = tptr + 9; 1020 1021 /* Decode each civic address element */ 1022 while (lci_len > 0) { 1023 if (lci_len < 2) { 1024 return hexdump; 1025 } 1026 ca_type = *(tptr); 1027 ca_len = *(tptr+1); 1028 1029 tptr += 2; 1030 lci_len -= 2; 1031 1032 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ", 1033 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1034 ca_type, ca_len)); 1035 1036 /* basic sanity check */ 1037 if ( ca_type == 0 || ca_len == 0) { 1038 return hexdump; 1039 } 1040 if (lci_len < ca_len) { 1041 return hexdump; 1042 } 1043 1044 safeputs(ndo, tptr, ca_len); 1045 tptr += ca_len; 1046 lci_len -= ca_len; 1047 } 1048 break; 1049 1050 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1051 ND_PRINT((ndo, "\n\t ECS ELIN id ")); 1052 safeputs(ndo, tptr + 5, tlv_len - 5); 1053 break; 1054 1055 default: 1056 ND_PRINT((ndo, "\n\t Location ID ")); 1057 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1058 } 1059 break; 1060 1061 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1062 if (tlv_len < 7) { 1063 return hexdump; 1064 } 1065 ND_PRINT((ndo, "\n\t Power type [%s]", 1066 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device")); 1067 ND_PRINT((ndo, ", Power source [%s]", 1068 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4))); 1069 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)", 1070 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f), 1071 *(tptr + 4) & 0x0f)); 1072 power_val = EXTRACT_16BITS(tptr+5); 1073 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1074 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10)); 1075 } else { 1076 ND_PRINT((ndo, ", Power %u (Reserved)", power_val)); 1077 } 1078 break; 1079 1080 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1081 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1082 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1083 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1084 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1085 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1086 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1087 ND_PRINT((ndo, "\n\t %s ", 1088 tok2str(lldp_tia_inventory_values, "unknown", subtype))); 1089 safeputs(ndo, tptr + 4, tlv_len - 4); 1090 break; 1091 1092 default: 1093 hexdump = TRUE; 1094 break; 1095 } 1096 1097 return hexdump; 1098 } 1099 1100 /* 1101 * Print DCBX Protocol fields (V 1.01). 1102 */ 1103 static int 1104 lldp_private_dcbx_print(netdissect_options *ndo, 1105 const u_char *pptr, u_int len) 1106 { 1107 int subtype, hexdump = FALSE; 1108 uint8_t tval; 1109 uint16_t tlv; 1110 uint32_t i, pgval, uval; 1111 u_int tlen, tlv_type, tlv_len; 1112 const u_char *tptr, *mptr; 1113 1114 if (len < 4) { 1115 return hexdump; 1116 } 1117 subtype = *(pptr+3); 1118 1119 ND_PRINT((ndo, "\n\t %s Subtype (%u)", 1120 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1121 subtype)); 1122 1123 /* by passing old version */ 1124 if (subtype == LLDP_DCBX_SUBTYPE_1) 1125 return TRUE; 1126 1127 tptr = pptr + 4; 1128 tlen = len - 4; 1129 1130 while (tlen >= sizeof(tlv)) { 1131 1132 ND_TCHECK2(*tptr, sizeof(tlv)); 1133 1134 tlv = EXTRACT_16BITS(tptr); 1135 1136 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1137 tlv_len = LLDP_EXTRACT_LEN(tlv); 1138 hexdump = FALSE; 1139 1140 tlen -= sizeof(tlv); 1141 tptr += sizeof(tlv); 1142 1143 /* loop check */ 1144 if (!tlv_type || !tlv_len) { 1145 break; 1146 } 1147 1148 ND_TCHECK2(*tptr, tlv_len); 1149 if (tlen < tlv_len) { 1150 goto trunc; 1151 } 1152 1153 /* decode every tlv */ 1154 switch (tlv_type) { 1155 case LLDP_DCBX_CONTROL_TLV: 1156 if (tlv_len < 10) { 1157 goto trunc; 1158 } 1159 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)", 1160 LLDP_DCBX_CONTROL_TLV, tlv_len)); 1161 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1162 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1163 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2))); 1164 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d", 1165 EXTRACT_32BITS(tptr + 6))); 1166 break; 1167 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1168 if (tlv_len < 17) { 1169 goto trunc; 1170 } 1171 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)", 1172 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len)); 1173 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1174 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1175 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1176 tval = *(tptr+2); 1177 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1178 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1179 (tval & 0x20) ? 1 : 0)); 1180 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1181 ND_PRINT((ndo, "\n\t Priority Allocation")); 1182 1183 /* 1184 * Array of 8 4-bit priority group ID values; we fetch all 1185 * 32 bits and extract each nibble. 1186 */ 1187 pgval = EXTRACT_32BITS(tptr+4); 1188 for (i = 0; i <= 7; i++) { 1189 ND_PRINT((ndo, "\n\t PgId_%d: %d", 1190 i, (pgval >> (28 - 4 * i)) & 0xF)); 1191 } 1192 ND_PRINT((ndo, "\n\t Priority Group Allocation")); 1193 for (i = 0; i <= 7; i++) 1194 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i))); 1195 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8))); 1196 break; 1197 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1198 if (tlv_len < 6) { 1199 goto trunc; 1200 } 1201 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control")); 1202 ND_PRINT((ndo, " (type 0x%x, length %d)", 1203 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len)); 1204 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1205 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1206 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1207 tval = *(tptr+2); 1208 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1209 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1210 (tval & 0x20) ? 1 : 0)); 1211 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1212 tval = *(tptr+4); 1213 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4))); 1214 for (i = 0; i <= 7; i++) 1215 ND_PRINT((ndo, "\n\t Priority Bit %d: %s", 1216 i, (tval & (1 << i)) ? "Enabled" : "Disabled")); 1217 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5))); 1218 break; 1219 case LLDP_DCBX_APPLICATION_TLV: 1220 if (tlv_len < 4) { 1221 goto trunc; 1222 } 1223 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)", 1224 LLDP_DCBX_APPLICATION_TLV, tlv_len)); 1225 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr)); 1226 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1))); 1227 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2))); 1228 tval = *(tptr+2); 1229 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d", 1230 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1231 (tval & 0x20) ? 1 : 0)); 1232 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3))); 1233 tval = tlv_len - 4; 1234 mptr = tptr + 4; 1235 while (tval >= 6) { 1236 ND_PRINT((ndo, "\n\t Application Value")); 1237 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x", 1238 EXTRACT_16BITS(mptr))); 1239 uval = EXTRACT_24BITS(mptr+2); 1240 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s", 1241 (uval >> 22), 1242 (uval >> 22) ? "Socket Number" : "L2 EtherType")); 1243 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff)); 1244 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5))); 1245 tval = tval - 6; 1246 mptr = mptr + 6; 1247 } 1248 break; 1249 default: 1250 hexdump = TRUE; 1251 break; 1252 } 1253 1254 /* do we also want to see a hex dump ? */ 1255 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1256 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1257 } 1258 1259 tlen -= tlv_len; 1260 tptr += tlv_len; 1261 } 1262 1263 trunc: 1264 return hexdump; 1265 } 1266 1267 static char * 1268 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1269 { 1270 uint8_t af; 1271 static char buf[BUFSIZE]; 1272 const char * (*pfunc)(netdissect_options *, const u_char *); 1273 1274 if (len < 1) 1275 return NULL; 1276 len--; 1277 af = *tptr; 1278 switch (af) { 1279 case AFNUM_INET: 1280 if (len < 4) 1281 return NULL; 1282 pfunc = getname; 1283 break; 1284 #ifdef INET6 1285 case AFNUM_INET6: 1286 if (len < 16) 1287 return NULL; 1288 pfunc = getname6; 1289 break; 1290 #endif 1291 case AFNUM_802: 1292 if (len < 6) 1293 return NULL; 1294 pfunc = etheraddr_string; 1295 break; 1296 default: 1297 pfunc = NULL; 1298 break; 1299 } 1300 1301 if (!pfunc) { 1302 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1303 tok2str(af_values, "Unknown", af), af); 1304 } else { 1305 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1306 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1307 } 1308 1309 return buf; 1310 } 1311 1312 static int 1313 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1314 const u_char *pptr, u_int len) 1315 { 1316 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1317 const u_char *tptr; 1318 u_int tlen; 1319 char *mgmt_addr; 1320 1321 tlen = len; 1322 tptr = pptr; 1323 1324 if (tlen < 1) { 1325 return 0; 1326 } 1327 mgmt_addr_len = *tptr++; 1328 tlen--; 1329 1330 if (tlen < mgmt_addr_len) { 1331 return 0; 1332 } 1333 1334 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1335 if (mgmt_addr == NULL) { 1336 return 0; 1337 } 1338 ND_PRINT((ndo, "\n\t Management Address length %u, %s", 1339 mgmt_addr_len, mgmt_addr)); 1340 tptr += mgmt_addr_len; 1341 tlen -= mgmt_addr_len; 1342 1343 if (tlen < LLDP_INTF_NUM_LEN) { 1344 return 0; 1345 } 1346 1347 intf_num_subtype = *tptr; 1348 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u", 1349 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1350 intf_num_subtype, 1351 EXTRACT_32BITS(tptr + 1))); 1352 1353 tptr += LLDP_INTF_NUM_LEN; 1354 tlen -= LLDP_INTF_NUM_LEN; 1355 1356 /* 1357 * The OID is optional. 1358 */ 1359 if (tlen) { 1360 oid_len = *tptr; 1361 1362 if (tlen < oid_len) { 1363 return 0; 1364 } 1365 if (oid_len) { 1366 ND_PRINT((ndo, "\n\t OID length %u", oid_len)); 1367 safeputs(ndo, tptr + 1, oid_len); 1368 } 1369 } 1370 1371 return 1; 1372 } 1373 1374 void 1375 lldp_print(netdissect_options *ndo, 1376 register const u_char *pptr, register u_int len) 1377 { 1378 uint8_t subtype; 1379 uint16_t tlv, cap, ena_cap; 1380 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1381 const u_char *tptr; 1382 char *network_addr; 1383 1384 tptr = pptr; 1385 tlen = len; 1386 1387 ND_PRINT((ndo, "LLDP, length %u", len)); 1388 1389 while (tlen >= sizeof(tlv)) { 1390 1391 ND_TCHECK2(*tptr, sizeof(tlv)); 1392 1393 tlv = EXTRACT_16BITS(tptr); 1394 1395 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1396 tlv_len = LLDP_EXTRACT_LEN(tlv); 1397 hexdump = FALSE; 1398 1399 tlen -= sizeof(tlv); 1400 tptr += sizeof(tlv); 1401 1402 if (ndo->ndo_vflag) { 1403 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u", 1404 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1405 tlv_type, tlv_len)); 1406 } 1407 1408 /* infinite loop check */ 1409 if (!tlv_type || !tlv_len) { 1410 break; 1411 } 1412 1413 ND_TCHECK2(*tptr, tlv_len); 1414 if (tlen < tlv_len) { 1415 goto trunc; 1416 } 1417 1418 switch (tlv_type) { 1419 1420 case LLDP_CHASSIS_ID_TLV: 1421 if (ndo->ndo_vflag) { 1422 if (tlv_len < 2) { 1423 goto trunc; 1424 } 1425 subtype = *tptr; 1426 ND_PRINT((ndo, "\n\t Subtype %s (%u): ", 1427 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1428 subtype)); 1429 1430 switch (subtype) { 1431 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1432 if (tlv_len < 1+6) { 1433 goto trunc; 1434 } 1435 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1))); 1436 break; 1437 1438 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1439 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1440 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1441 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1442 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1443 safeputs(ndo, tptr + 1, tlv_len - 1); 1444 break; 1445 1446 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1447 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1448 if (network_addr == NULL) { 1449 goto trunc; 1450 } 1451 ND_PRINT((ndo, "%s", network_addr)); 1452 break; 1453 1454 default: 1455 hexdump = TRUE; 1456 break; 1457 } 1458 } 1459 break; 1460 1461 case LLDP_PORT_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_port_subtype_values, "Unknown", subtype), 1469 subtype)); 1470 1471 switch (subtype) { 1472 case LLDP_PORT_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_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1480 case LLDP_PORT_LOCAL_SUBTYPE: 1481 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1482 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1483 case LLDP_PORT_PORT_COMP_SUBTYPE: 1484 safeputs(ndo, tptr + 1, tlv_len - 1); 1485 break; 1486 1487 case LLDP_PORT_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_TTL_TLV: 1503 if (ndo->ndo_vflag) { 1504 if (tlv_len < 2) { 1505 goto trunc; 1506 } 1507 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr))); 1508 } 1509 break; 1510 1511 case LLDP_PORT_DESCR_TLV: 1512 if (ndo->ndo_vflag) { 1513 ND_PRINT((ndo, ": ")); 1514 safeputs(ndo, tptr, tlv_len); 1515 } 1516 break; 1517 1518 case LLDP_SYSTEM_NAME_TLV: 1519 /* 1520 * The system name is also print in non-verbose mode 1521 * similar to the CDP printer. 1522 */ 1523 ND_PRINT((ndo, ": ")); 1524 safeputs(ndo, tptr, tlv_len); 1525 break; 1526 1527 case LLDP_SYSTEM_DESCR_TLV: 1528 if (ndo->ndo_vflag) { 1529 ND_PRINT((ndo, "\n\t ")); 1530 safeputs(ndo, tptr, tlv_len); 1531 } 1532 break; 1533 1534 case LLDP_SYSTEM_CAP_TLV: 1535 if (ndo->ndo_vflag) { 1536 /* 1537 * XXX - IEEE Std 802.1AB-2009 says the first octet 1538 * if a chassis ID subtype, with the system 1539 * capabilities and enabled capabilities following 1540 * it. 1541 */ 1542 if (tlv_len < 4) { 1543 goto trunc; 1544 } 1545 cap = EXTRACT_16BITS(tptr); 1546 ena_cap = EXTRACT_16BITS(tptr+2); 1547 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)", 1548 bittok2str(lldp_cap_values, "none", cap), cap)); 1549 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)", 1550 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap)); 1551 } 1552 break; 1553 1554 case LLDP_MGMT_ADDR_TLV: 1555 if (ndo->ndo_vflag) { 1556 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1557 goto trunc; 1558 } 1559 } 1560 break; 1561 1562 case LLDP_PRIVATE_TLV: 1563 if (ndo->ndo_vflag) { 1564 if (tlv_len < 3) { 1565 goto trunc; 1566 } 1567 oui = EXTRACT_24BITS(tptr); 1568 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui)); 1569 1570 switch (oui) { 1571 case OUI_IEEE_8021_PRIVATE: 1572 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1573 break; 1574 case OUI_IEEE_8023_PRIVATE: 1575 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1576 break; 1577 case OUI_TIA: 1578 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1579 break; 1580 case OUI_DCBX: 1581 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1582 break; 1583 default: 1584 hexdump = TRUE; 1585 break; 1586 } 1587 } 1588 break; 1589 1590 default: 1591 hexdump = TRUE; 1592 break; 1593 } 1594 1595 /* do we also want to see a hex dump ? */ 1596 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1597 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1598 } 1599 1600 tlen -= tlv_len; 1601 tptr += tlv_len; 1602 } 1603 return; 1604 trunc: 1605 ND_PRINT((ndo, "\n\t[|LLDP]")); 1606 } 1607 1608 /* 1609 * Local Variables: 1610 * c-style: whitesmith 1611 * c-basic-offset: 4 1612 * End: 1613 */ 1614