1 /* 2 * Copyright (c) 1998-2007 The TCPDUMP project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that: (1) source code 6 * distributions retain the above copyright notice and this paragraph 7 * in its entirety, and (2) distributions including binary code include 8 * the above copyright notice and this paragraph in its entirety in 9 * the documentation or other materials provided with the distribution. 10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND 11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 * FOR A PARTICULAR PURPOSE. 14 * 15 * Original code by Hannes Gredler (hannes@gredler.at) 16 * IEEE and TIA extensions by Carles Kishimoto <carles.kishimoto@gmail.com> 17 * DCBX extensions by Kaladhar Musunuru <kaladharm@sourceforge.net> 18 */ 19 20 /* \summary: IEEE 802.1ab Link Layer Discovery Protocol (LLDP) printer */ 21 22 #include <config.h> 23 24 #include "netdissect-stdinc.h" 25 26 #include <stdio.h> 27 28 #include "netdissect.h" 29 #include "extract.h" 30 #include "addrtoname.h" 31 #include "af.h" 32 #include "oui.h" 33 34 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9) 35 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff) 36 37 /* 38 * TLV type codes 39 */ 40 #define LLDP_END_TLV 0 41 #define LLDP_CHASSIS_ID_TLV 1 42 #define LLDP_PORT_ID_TLV 2 43 #define LLDP_TTL_TLV 3 44 #define LLDP_PORT_DESCR_TLV 4 45 #define LLDP_SYSTEM_NAME_TLV 5 46 #define LLDP_SYSTEM_DESCR_TLV 6 47 #define LLDP_SYSTEM_CAP_TLV 7 48 #define LLDP_MGMT_ADDR_TLV 8 49 #define LLDP_PRIVATE_TLV 127 50 51 static const struct tok lldp_tlv_values[] = { 52 { LLDP_END_TLV, "End" }, 53 { LLDP_CHASSIS_ID_TLV, "Chassis ID" }, 54 { LLDP_PORT_ID_TLV, "Port ID" }, 55 { LLDP_TTL_TLV, "Time to Live" }, 56 { LLDP_PORT_DESCR_TLV, "Port Description" }, 57 { LLDP_SYSTEM_NAME_TLV, "System Name" }, 58 { LLDP_SYSTEM_DESCR_TLV, "System Description" }, 59 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" }, 60 { LLDP_MGMT_ADDR_TLV, "Management Address" }, 61 { LLDP_PRIVATE_TLV, "Organization specific" }, 62 { 0, NULL} 63 }; 64 65 /* 66 * Chassis ID subtypes 67 */ 68 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1 69 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2 70 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3 71 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4 72 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5 73 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6 74 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7 75 76 static const struct tok lldp_chassis_subtype_values[] = { 77 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"}, 78 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"}, 79 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"}, 80 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"}, 81 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"}, 82 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"}, 83 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"}, 84 { 0, NULL} 85 }; 86 87 /* 88 * Port ID subtypes 89 */ 90 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1 91 #define LLDP_PORT_PORT_COMP_SUBTYPE 2 92 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3 93 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4 94 #define LLDP_PORT_INTF_NAME_SUBTYPE 5 95 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6 96 #define LLDP_PORT_LOCAL_SUBTYPE 7 97 98 static const struct tok lldp_port_subtype_values[] = { 99 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"}, 100 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"}, 101 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"}, 102 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"}, 103 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"}, 104 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"}, 105 { LLDP_PORT_LOCAL_SUBTYPE, "Local"}, 106 { 0, NULL} 107 }; 108 109 /* 110 * System Capabilities 111 */ 112 #define LLDP_CAP_OTHER (1 << 0) 113 #define LLDP_CAP_REPEATER (1 << 1) 114 #define LLDP_CAP_BRIDGE (1 << 2) 115 #define LLDP_CAP_WLAN_AP (1 << 3) 116 #define LLDP_CAP_ROUTER (1 << 4) 117 #define LLDP_CAP_PHONE (1 << 5) 118 #define LLDP_CAP_DOCSIS (1 << 6) 119 #define LLDP_CAP_STATION_ONLY (1 << 7) 120 121 static const struct tok lldp_cap_values[] = { 122 { LLDP_CAP_OTHER, "Other"}, 123 { LLDP_CAP_REPEATER, "Repeater"}, 124 { LLDP_CAP_BRIDGE, "Bridge"}, 125 { LLDP_CAP_WLAN_AP, "WLAN AP"}, 126 { LLDP_CAP_ROUTER, "Router"}, 127 { LLDP_CAP_PHONE, "Telephone"}, 128 { LLDP_CAP_DOCSIS, "Docsis"}, 129 { LLDP_CAP_STATION_ONLY, "Station Only"}, 130 { 0, NULL} 131 }; 132 133 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1 134 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2 135 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3 136 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4 137 #define LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR 7 138 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8 139 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9 140 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10 141 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11 142 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12 143 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13 144 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14 145 146 static const struct tok lldp_8021_subtype_values[] = { 147 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"}, 148 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"}, 149 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"}, 150 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"}, 151 { LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR, "Link aggregation"}, 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_CAPABILITY (1 << 0) 544 #define LLDP_AGGREGATION_STATUS (1 << 1) 545 546 static const struct tok lldp_aggregation_values[] = { 547 { LLDP_AGGREGATION_CAPABILITY, "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 Station"}, 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("\n\t Priority Assignment Table"); 618 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 619 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 620 GET_U_1(ptr) >> 4, GET_U_1(ptr) & 0x0f, 621 GET_U_1(ptr + 1) >> 4, GET_U_1(ptr + 1) & 0x0f, 622 GET_U_1(ptr + 2) >> 4, GET_U_1(ptr + 2) & 0x0f, 623 GET_U_1(ptr + 3) >> 4, GET_U_1(ptr + 3) & 0x0f); 624 } 625 626 static void 627 print_tc_bandwidth_table(netdissect_options *ndo, 628 const u_char *ptr) 629 { 630 ND_PRINT("\n\t TC Bandwidth Table"); 631 ND_PRINT("\n\t TC%% : 0 1 2 3 4 5 6 7"); 632 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 633 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2), 634 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5), 635 GET_U_1(ptr + 6), GET_U_1(ptr + 7)); 636 } 637 638 static void 639 print_tsa_assignment_table(netdissect_options *ndo, 640 const u_char *ptr) 641 { 642 ND_PRINT("\n\t TSA Assignment Table"); 643 ND_PRINT("\n\t Traffic Class: 0 1 2 3 4 5 6 7"); 644 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d", 645 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2), 646 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5), 647 GET_U_1(ptr + 6), GET_U_1(ptr + 7)); 648 } 649 650 /* 651 * Print IEEE 802.1 private extensions. (802.1AB annex E) 652 */ 653 static int 654 lldp_private_8021_print(netdissect_options *ndo, 655 const u_char *tptr, u_int tlv_len) 656 { 657 int hexdump = FALSE; 658 u_int subtype; 659 u_int sublen; 660 u_int tval; 661 u_int i; 662 663 if (tlv_len < 4) { 664 return hexdump; 665 } 666 subtype = GET_U_1(tptr + 3); 667 668 ND_PRINT("\n\t %s Subtype (%u)", 669 tok2str(lldp_8021_subtype_values, "unknown", subtype), 670 subtype); 671 672 switch (subtype) { 673 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID: 674 if (tlv_len < 6) { 675 return hexdump; 676 } 677 ND_PRINT("\n\t port vlan id (PVID): %u", 678 GET_BE_U_2(tptr + 4)); 679 break; 680 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID: 681 if (tlv_len < 7) { 682 return hexdump; 683 } 684 ND_PRINT("\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)", 685 GET_BE_U_2(tptr + 5), 686 bittok2str(lldp_8021_port_protocol_id_values, "none", GET_U_1(tptr + 4)), 687 GET_U_1(tptr + 4)); 688 break; 689 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME: 690 if (tlv_len < 6) { 691 return hexdump; 692 } 693 ND_PRINT("\n\t vlan id (VID): %u", GET_BE_U_2(tptr + 4)); 694 if (tlv_len < 7) { 695 return hexdump; 696 } 697 sublen = GET_U_1(tptr + 6); 698 if (tlv_len < 7+sublen) { 699 return hexdump; 700 } 701 ND_PRINT("\n\t vlan name: "); 702 nd_printjnp(ndo, tptr + 7, sublen); 703 break; 704 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY: 705 if (tlv_len < 5) { 706 return hexdump; 707 } 708 sublen = GET_U_1(tptr + 4); 709 if (tlv_len < 5+sublen) { 710 return hexdump; 711 } 712 ND_PRINT("\n\t protocol identity: "); 713 nd_printjnp(ndo, tptr + 5, sublen); 714 break; 715 716 case LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR: 717 if (tlv_len < 9) { 718 return hexdump; 719 } 720 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u", 721 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))), 722 GET_BE_U_4(tptr + 5)); 723 break; 724 725 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION: 726 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){ 727 return hexdump; 728 } 729 tval=GET_U_1(tptr + 4); 730 ND_PRINT("\n\t Pre-Priority CNPV Indicator"); 731 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 732 ND_PRINT("\n\t Value : "); 733 for(i=0;i<NO_OF_BITS;i++) 734 ND_PRINT("%-2d ", (tval >> i) & 0x01); 735 tval=GET_U_1(tptr + 5); 736 ND_PRINT("\n\t Pre-Priority Ready Indicator"); 737 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 738 ND_PRINT("\n\t Value : "); 739 for(i=0;i<NO_OF_BITS;i++) 740 ND_PRINT("%-2d ", (tval >> i) & 0x01); 741 break; 742 743 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION: 744 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) { 745 return hexdump; 746 } 747 tval=GET_U_1(tptr + 4); 748 ND_PRINT("\n\t Willing:%u, CBS:%u, RES:%u, Max TCs:%u", 749 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07); 750 751 /*Print Priority Assignment Table*/ 752 print_ets_priority_assignment_table(ndo, tptr + 5); 753 754 /*Print TC Bandwidth Table*/ 755 print_tc_bandwidth_table(ndo, tptr + 9); 756 757 /* Print TSA Assignment Table */ 758 print_tsa_assignment_table(ndo, tptr + 17); 759 760 break; 761 762 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION: 763 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) { 764 return hexdump; 765 } 766 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4)); 767 /*Print Priority Assignment Table */ 768 print_ets_priority_assignment_table(ndo, tptr + 5); 769 /*Print TC Bandwidth Table */ 770 print_tc_bandwidth_table(ndo, tptr + 9); 771 /* Print TSA Assignment Table */ 772 print_tsa_assignment_table(ndo, tptr + 17); 773 break; 774 775 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION: 776 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) { 777 return hexdump; 778 } 779 tval=GET_U_1(tptr + 4); 780 ND_PRINT("\n\t Willing: %u, MBC: %u, RES: %u, PFC cap:%u ", 781 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f)); 782 ND_PRINT("\n\t PFC Enable"); 783 tval=GET_U_1(tptr + 5); 784 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7"); 785 ND_PRINT("\n\t Value : "); 786 for(i=0;i<NO_OF_BITS;i++) 787 ND_PRINT("%-2d ", (tval >> i) & 0x01); 788 break; 789 790 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY: 791 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) { 792 return hexdump; 793 } 794 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4)); 795 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){ 796 return hexdump; 797 } 798 /* Length of Application Priority Table */ 799 sublen=tlv_len-5; 800 if(sublen%3!=0){ 801 return hexdump; 802 } 803 i=0; 804 ND_PRINT("\n\t Application Priority Table"); 805 while(i<sublen) { 806 tval=GET_U_1(tptr + i + 5); 807 ND_PRINT("\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u", 808 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07), 809 GET_BE_U_2(tptr + i + 6)); 810 i=i+3; 811 } 812 break; 813 case LLDP_PRIVATE_8021_SUBTYPE_EVB: 814 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){ 815 return hexdump; 816 } 817 ND_PRINT("\n\t EVB Bridge Status"); 818 tval=GET_U_1(tptr + 4); 819 ND_PRINT("\n\t RES: %u, BGID: %u, RRCAP: %u, RRCTR: %u", 820 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01); 821 ND_PRINT("\n\t EVB Station Status"); 822 tval=GET_U_1(tptr + 5); 823 ND_PRINT("\n\t RES: %u, SGID: %u, RRREQ: %u,RRSTAT: %u", 824 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03); 825 tval=GET_U_1(tptr + 6); 826 ND_PRINT("\n\t R: %u, RTE: %u, ",tval >> 5, tval & 0x1f); 827 tval=GET_U_1(tptr + 7); 828 ND_PRINT("EVB Mode: %s [%u]", 829 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6); 830 ND_PRINT("\n\t ROL: %u, RWD: %u, ", (tval >> 5) & 0x01, tval & 0x1f); 831 tval=GET_U_1(tptr + 8); 832 ND_PRINT("RES: %u, ROL: %u, RKA: %u", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f); 833 break; 834 835 case LLDP_PRIVATE_8021_SUBTYPE_CDCP: 836 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){ 837 return hexdump; 838 } 839 tval=GET_U_1(tptr + 4); 840 ND_PRINT("\n\t Role: %u, RES: %u, Scomp: %u ", 841 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01); 842 ND_PRINT("ChnCap: %u", GET_BE_U_2(tptr + 6) & 0x0fff); 843 sublen=tlv_len-8; 844 if(sublen%3!=0) { 845 return hexdump; 846 } 847 i=0; 848 while(i<sublen) { 849 tval=GET_BE_U_3(tptr + i + 8); 850 ND_PRINT("\n\t SCID: %u, SVID: %u", 851 tval >> 12, tval & 0x000fff); 852 i=i+3; 853 } 854 break; 855 856 default: 857 hexdump = TRUE; 858 break; 859 } 860 861 return hexdump; 862 } 863 864 /* 865 * Print IEEE 802.3 private extensions. (802.3bc) 866 */ 867 static int 868 lldp_private_8023_print(netdissect_options *ndo, 869 const u_char *tptr, u_int tlv_len) 870 { 871 int hexdump = FALSE; 872 u_int subtype; 873 874 if (tlv_len < 4) { 875 return hexdump; 876 } 877 subtype = GET_U_1(tptr + 3); 878 879 ND_PRINT("\n\t %s Subtype (%u)", 880 tok2str(lldp_8023_subtype_values, "unknown", subtype), 881 subtype); 882 883 switch (subtype) { 884 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY: 885 if (tlv_len < 9) { 886 return hexdump; 887 } 888 ND_PRINT("\n\t autonegotiation [%s] (0x%02x)", 889 bittok2str(lldp_8023_autonegotiation_values, "none", GET_U_1(tptr + 4)), 890 GET_U_1(tptr + 4)); 891 ND_PRINT("\n\t PMD autoneg capability [%s] (0x%04x)", 892 bittok2str(lldp_pmd_capability_values,"unknown", GET_BE_U_2(tptr + 5)), 893 GET_BE_U_2(tptr + 5)); 894 ND_PRINT("\n\t MAU type %s (0x%04x)", 895 tok2str(lldp_mau_types_values, "unknown", GET_BE_U_2(tptr + 7)), 896 GET_BE_U_2(tptr + 7)); 897 break; 898 899 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER: 900 if (tlv_len < 7) { 901 return hexdump; 902 } 903 ND_PRINT("\n\t MDI power support [%s], power pair %s, power class %s", 904 bittok2str(lldp_mdi_values, "none", GET_U_1((tptr + 4))), 905 tok2str(lldp_mdi_power_pairs_values, "unknown", GET_U_1((tptr + 5))), 906 tok2str(lldp_mdi_power_class_values, "unknown", GET_U_1((tptr + 6)))); 907 break; 908 909 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR: 910 if (tlv_len < 9) { 911 return hexdump; 912 } 913 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u", 914 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))), 915 GET_BE_U_4(tptr + 5)); 916 break; 917 918 case LLDP_PRIVATE_8023_SUBTYPE_MTU: 919 if (tlv_len < 6) { 920 return hexdump; 921 } 922 ND_PRINT("\n\t MTU size %u", GET_BE_U_2(tptr + 4)); 923 break; 924 925 default: 926 hexdump = TRUE; 927 break; 928 } 929 930 return hexdump; 931 } 932 933 /* 934 * Extract 34bits of latitude/longitude coordinates. 935 */ 936 static uint64_t 937 lldp_extract_latlon(netdissect_options *ndo, const u_char *tptr) 938 { 939 uint64_t latlon; 940 941 latlon = GET_U_1(tptr) & 0x3; 942 latlon = (latlon << 32) | GET_BE_U_4(tptr + 1); 943 944 return latlon; 945 } 946 947 /* objects defined in IANA subtype 00 00 5e 948 * (right now there is only one) 949 */ 950 951 952 static int 953 lldp_private_iana_print(netdissect_options *ndo, 954 const u_char *tptr, u_int tlv_len) 955 { 956 int hexdump = FALSE; 957 u_int subtype; 958 959 if (tlv_len < 8) { 960 return hexdump; 961 } 962 subtype = GET_U_1(tptr + 3); 963 964 ND_PRINT("\n\t %s Subtype (%u)", 965 tok2str(lldp_iana_subtype_values, "unknown", subtype), 966 subtype); 967 968 switch (subtype) { 969 case LLDP_IANA_SUBTYPE_MUDURL: 970 ND_PRINT("\n\t MUD-URL="); 971 (void)nd_printn(ndo, tptr+4, tlv_len-4, NULL); 972 break; 973 default: 974 hexdump=TRUE; 975 } 976 977 return hexdump; 978 } 979 980 981 982 /* 983 * Print private TIA extensions. 984 */ 985 static int 986 lldp_private_tia_print(netdissect_options *ndo, 987 const u_char *tptr, u_int tlv_len) 988 { 989 int hexdump = FALSE; 990 u_int subtype; 991 uint8_t location_format; 992 uint16_t power_val; 993 u_int lci_len; 994 uint8_t ca_type, ca_len; 995 996 if (tlv_len < 4) { 997 return hexdump; 998 } 999 subtype = GET_U_1(tptr + 3); 1000 1001 ND_PRINT("\n\t %s Subtype (%u)", 1002 tok2str(lldp_tia_subtype_values, "unknown", subtype), 1003 subtype); 1004 1005 switch (subtype) { 1006 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES: 1007 if (tlv_len < 7) { 1008 return hexdump; 1009 } 1010 ND_PRINT("\n\t Media capabilities [%s] (0x%04x)", 1011 bittok2str(lldp_tia_capabilities_values, "none", 1012 GET_BE_U_2(tptr + 4)), GET_BE_U_2(tptr + 4)); 1013 ND_PRINT("\n\t Device type [%s] (0x%02x)", 1014 tok2str(lldp_tia_device_type_values, "unknown", GET_U_1(tptr + 6)), 1015 GET_U_1(tptr + 6)); 1016 break; 1017 1018 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY: 1019 if (tlv_len < 8) { 1020 return hexdump; 1021 } 1022 ND_PRINT("\n\t Application type [%s] (0x%02x)", 1023 tok2str(lldp_tia_application_type_values, "none", GET_U_1(tptr + 4)), 1024 GET_U_1(tptr + 4)); 1025 ND_PRINT(", Flags [%s]", bittok2str( 1026 lldp_tia_network_policy_bits_values, "none", GET_U_1((tptr + 5)))); 1027 ND_PRINT("\n\t Vlan id %u", 1028 LLDP_EXTRACT_NETWORK_POLICY_VLAN(GET_BE_U_2(tptr + 5))); 1029 ND_PRINT(", L2 priority %u", 1030 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(GET_BE_U_2(tptr + 6))); 1031 ND_PRINT(", DSCP value %u", 1032 LLDP_EXTRACT_NETWORK_POLICY_DSCP(GET_BE_U_2(tptr + 6))); 1033 break; 1034 1035 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID: 1036 if (tlv_len < 5) { 1037 return hexdump; 1038 } 1039 location_format = GET_U_1(tptr + 4); 1040 ND_PRINT("\n\t Location data format %s (0x%02x)", 1041 tok2str(lldp_tia_location_data_format_values, "unknown", location_format), 1042 location_format); 1043 1044 switch (location_format) { 1045 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED: 1046 if (tlv_len < 21) { 1047 return hexdump; 1048 } 1049 ND_PRINT("\n\t Latitude resolution %u, latitude value %" PRIu64, 1050 (GET_U_1(tptr + 5) >> 2), 1051 lldp_extract_latlon(ndo, tptr + 5)); 1052 ND_PRINT("\n\t Longitude resolution %u, longitude value %" PRIu64, 1053 (GET_U_1(tptr + 10) >> 2), 1054 lldp_extract_latlon(ndo, tptr + 10)); 1055 ND_PRINT("\n\t Altitude type %s (%u)", 1056 tok2str(lldp_tia_location_altitude_type_values, "unknown",GET_U_1(tptr + 15) >> 4), 1057 (GET_U_1(tptr + 15) >> 4)); 1058 ND_PRINT("\n\t Altitude resolution %u, altitude value 0x%x", 1059 (GET_BE_U_2(tptr + 15)>>6)&0x3f, 1060 (GET_BE_U_4(tptr + 16) & 0x3fffffff)); 1061 ND_PRINT("\n\t Datum %s (0x%02x)", 1062 tok2str(lldp_tia_location_datum_type_values, "unknown", GET_U_1(tptr + 20)), 1063 GET_U_1(tptr + 20)); 1064 break; 1065 1066 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS: 1067 if (tlv_len < 6) { 1068 return hexdump; 1069 } 1070 lci_len = GET_U_1(tptr + 5); 1071 if (lci_len < 3) { 1072 return hexdump; 1073 } 1074 if (tlv_len < 7+lci_len) { 1075 return hexdump; 1076 } 1077 ND_PRINT("\n\t LCI length %u, LCI what %s (0x%02x), Country-code ", 1078 lci_len, 1079 tok2str(lldp_tia_location_lci_what_values, "unknown", GET_U_1(tptr + 6)), 1080 GET_U_1(tptr + 6)); 1081 1082 /* Country code */ 1083 nd_printjnp(ndo, tptr + 7, 2); 1084 1085 lci_len = lci_len-3; 1086 tptr = tptr + 9; 1087 1088 /* Decode each civic address element */ 1089 while (lci_len > 0) { 1090 if (lci_len < 2) { 1091 return hexdump; 1092 } 1093 ca_type = GET_U_1(tptr); 1094 ca_len = GET_U_1(tptr + 1); 1095 1096 tptr += 2; 1097 lci_len -= 2; 1098 1099 ND_PRINT("\n\t CA type '%s' (%u), length %u: ", 1100 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type), 1101 ca_type, ca_len); 1102 1103 /* basic sanity check */ 1104 if ( ca_type == 0 || ca_len == 0) { 1105 return hexdump; 1106 } 1107 if (lci_len < ca_len) { 1108 return hexdump; 1109 } 1110 1111 nd_printjnp(ndo, tptr, ca_len); 1112 tptr += ca_len; 1113 lci_len -= ca_len; 1114 } 1115 break; 1116 1117 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN: 1118 ND_PRINT("\n\t ECS ELIN id "); 1119 nd_printjnp(ndo, tptr + 5, tlv_len - 5); 1120 break; 1121 1122 default: 1123 ND_PRINT("\n\t Location ID "); 1124 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5); 1125 } 1126 break; 1127 1128 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI: 1129 if (tlv_len < 7) { 1130 return hexdump; 1131 } 1132 ND_PRINT("\n\t Power type [%s]", 1133 (GET_U_1(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device"); 1134 ND_PRINT(", Power source [%s]", 1135 tok2str(lldp_tia_power_source_values, "none", (GET_U_1((tptr + 4)) & 0x30) >> 4)); 1136 ND_PRINT("\n\t Power priority [%s] (0x%02x)", 1137 tok2str(lldp_tia_power_priority_values, "none", GET_U_1(tptr + 4) & 0x0f), 1138 GET_U_1(tptr + 4) & 0x0f); 1139 power_val = GET_BE_U_2(tptr + 5); 1140 if (power_val < LLDP_TIA_POWER_VAL_MAX) { 1141 ND_PRINT(", Power %.1f Watts", ((float)power_val) / 10); 1142 } else { 1143 ND_PRINT(", Power %u (Reserved)", power_val); 1144 } 1145 break; 1146 1147 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV: 1148 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV: 1149 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV: 1150 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER: 1151 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME: 1152 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME: 1153 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID: 1154 ND_PRINT("\n\t %s ", 1155 tok2str(lldp_tia_inventory_values, "unknown", subtype)); 1156 nd_printjnp(ndo, tptr + 4, tlv_len - 4); 1157 break; 1158 1159 default: 1160 hexdump = TRUE; 1161 break; 1162 } 1163 1164 return hexdump; 1165 } 1166 1167 /* 1168 * Print DCBX Protocol fields (V 1.01). 1169 */ 1170 static int 1171 lldp_private_dcbx_print(netdissect_options *ndo, 1172 const u_char *pptr, u_int len) 1173 { 1174 int hexdump = FALSE; 1175 u_int subtype; 1176 uint16_t tval; 1177 uint16_t tlv; 1178 uint32_t i, pgval, uval; 1179 u_int tlen, tlv_type; 1180 uint16_t tlv_len; 1181 const u_char *tptr, *mptr; 1182 1183 if (len < 4) { 1184 return hexdump; 1185 } 1186 subtype = GET_U_1(pptr + 3); 1187 1188 ND_PRINT("\n\t %s Subtype (%u)", 1189 tok2str(lldp_dcbx_subtype_values, "unknown", subtype), 1190 subtype); 1191 1192 /* by passing old version */ 1193 if (subtype == LLDP_DCBX_SUBTYPE_1) 1194 return TRUE; 1195 1196 tptr = pptr + 4; 1197 tlen = len - 4; 1198 1199 while (tlen >= sizeof(tlv)) { 1200 1201 ND_TCHECK_LEN(tptr, sizeof(tlv)); 1202 1203 tlv = GET_BE_U_2(tptr); 1204 1205 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1206 tlv_len = LLDP_EXTRACT_LEN(tlv); 1207 hexdump = FALSE; 1208 1209 tlen -= sizeof(tlv); 1210 tptr += sizeof(tlv); 1211 1212 /* loop check */ 1213 if (!tlv_type || !tlv_len) { 1214 break; 1215 } 1216 1217 ND_TCHECK_LEN(tptr, tlv_len); 1218 if (tlen < tlv_len) { 1219 goto trunc; 1220 } 1221 1222 /* decode every tlv */ 1223 switch (tlv_type) { 1224 case LLDP_DCBX_CONTROL_TLV: 1225 if (tlv_len < 10) { 1226 goto trunc; 1227 } 1228 ND_PRINT("\n\t Control - Protocol Control (type 0x%x, length %u)", 1229 LLDP_DCBX_CONTROL_TLV, tlv_len); 1230 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1231 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1232 ND_PRINT("\n\t Sequence Number: %u", GET_BE_U_4(tptr + 2)); 1233 ND_PRINT("\n\t Acknowledgement Number: %u", 1234 GET_BE_U_4(tptr + 6)); 1235 break; 1236 case LLDP_DCBX_PRIORITY_GROUPS_TLV: 1237 if (tlv_len < 17) { 1238 goto trunc; 1239 } 1240 ND_PRINT("\n\t Feature - Priority Group (type 0x%x, length %u)", 1241 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len); 1242 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1243 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1244 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2)); 1245 tval = GET_U_1(tptr + 2); 1246 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u", 1247 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1248 (tval & 0x20) ? 1 : 0); 1249 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3)); 1250 ND_PRINT("\n\t Priority Allocation"); 1251 1252 /* 1253 * Array of 8 4-bit priority group ID values; we fetch all 1254 * 32 bits and extract each nibble. 1255 */ 1256 pgval = GET_BE_U_4(tptr + 4); 1257 for (i = 0; i <= 7; i++) { 1258 ND_PRINT("\n\t PgId_%u: %u", 1259 i, (pgval >> (28 - 4 * i)) & 0xF); 1260 } 1261 ND_PRINT("\n\t Priority Group Allocation"); 1262 for (i = 0; i <= 7; i++) 1263 ND_PRINT("\n\t Pg percentage[%u]: %u", i, 1264 GET_U_1(tptr + 8 + i)); 1265 ND_PRINT("\n\t NumTCsSupported: %u", GET_U_1(tptr + 8 + 8)); 1266 break; 1267 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV: 1268 if (tlv_len < 6) { 1269 goto trunc; 1270 } 1271 ND_PRINT("\n\t Feature - Priority Flow Control"); 1272 ND_PRINT(" (type 0x%x, length %u)", 1273 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len); 1274 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1275 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1276 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2)); 1277 tval = GET_U_1(tptr + 2); 1278 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u", 1279 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1280 (tval & 0x20) ? 1 : 0); 1281 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3)); 1282 tval = GET_U_1(tptr + 4); 1283 ND_PRINT("\n\t PFC Config (0x%02X)", GET_U_1(tptr + 4)); 1284 for (i = 0; i <= 7; i++) 1285 ND_PRINT("\n\t Priority Bit %u: %s", 1286 i, (tval & (1 << i)) ? "Enabled" : "Disabled"); 1287 ND_PRINT("\n\t NumTCPFCSupported: %u", GET_U_1(tptr + 5)); 1288 break; 1289 case LLDP_DCBX_APPLICATION_TLV: 1290 if (tlv_len < 4) { 1291 goto trunc; 1292 } 1293 ND_PRINT("\n\t Feature - Application (type 0x%x, length %u)", 1294 LLDP_DCBX_APPLICATION_TLV, tlv_len); 1295 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr)); 1296 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1)); 1297 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2)); 1298 tval = GET_U_1(tptr + 2); 1299 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u", 1300 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0, 1301 (tval & 0x20) ? 1 : 0); 1302 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3)); 1303 tval = tlv_len - 4; 1304 mptr = tptr + 4; 1305 while (tval >= 6) { 1306 ND_PRINT("\n\t Application Value"); 1307 ND_PRINT("\n\t Application Protocol ID: 0x%04x", 1308 GET_BE_U_2(mptr)); 1309 uval = GET_BE_U_3(mptr + 2); 1310 ND_PRINT("\n\t SF (0x%x) Application Protocol ID is %s", 1311 (uval >> 22), 1312 (uval >> 22) ? "Socket Number" : "L2 EtherType"); 1313 ND_PRINT("\n\t OUI: 0x%06x", uval & 0x3fffff); 1314 ND_PRINT("\n\t User Priority Map: 0x%02x", 1315 GET_U_1(mptr + 5)); 1316 tval = tval - 6; 1317 mptr = mptr + 6; 1318 } 1319 break; 1320 default: 1321 hexdump = TRUE; 1322 break; 1323 } 1324 1325 /* do we also want to see a hex dump ? */ 1326 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1327 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1328 } 1329 1330 tlen -= tlv_len; 1331 tptr += tlv_len; 1332 } 1333 1334 trunc: 1335 return hexdump; 1336 } 1337 1338 static char * 1339 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len) 1340 { 1341 uint8_t af; 1342 static char buf[BUFSIZE]; 1343 const char * (*pfunc)(netdissect_options *, const u_char *); 1344 1345 if (len < 1) 1346 return NULL; 1347 len--; 1348 af = GET_U_1(tptr); 1349 switch (af) { 1350 case AFNUM_INET: 1351 if (len < sizeof(nd_ipv4)) 1352 return NULL; 1353 pfunc = ipaddr_string; 1354 break; 1355 case AFNUM_INET6: 1356 if (len < sizeof(nd_ipv6)) 1357 return NULL; 1358 pfunc = ip6addr_string; 1359 break; 1360 case AFNUM_802: 1361 if (len < MAC_ADDR_LEN) 1362 return NULL; 1363 pfunc = etheraddr_string; 1364 break; 1365 default: 1366 pfunc = NULL; 1367 break; 1368 } 1369 1370 if (!pfunc) { 1371 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !", 1372 tok2str(af_values, "Unknown", af), af); 1373 } else { 1374 snprintf(buf, sizeof(buf), "AFI %s (%u): %s", 1375 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1)); 1376 } 1377 1378 return buf; 1379 } 1380 1381 static int 1382 lldp_mgmt_addr_tlv_print(netdissect_options *ndo, 1383 const u_char *pptr, u_int len) 1384 { 1385 uint8_t mgmt_addr_len, intf_num_subtype, oid_len; 1386 const u_char *tptr; 1387 u_int tlen; 1388 char *mgmt_addr; 1389 1390 tlen = len; 1391 tptr = pptr; 1392 1393 if (tlen < 1) { 1394 return 0; 1395 } 1396 mgmt_addr_len = GET_U_1(tptr); 1397 tptr++; 1398 tlen--; 1399 1400 if (tlen < mgmt_addr_len) { 1401 return 0; 1402 } 1403 1404 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len); 1405 if (mgmt_addr == NULL) { 1406 return 0; 1407 } 1408 ND_PRINT("\n\t Management Address length %u, %s", 1409 mgmt_addr_len, mgmt_addr); 1410 tptr += mgmt_addr_len; 1411 tlen -= mgmt_addr_len; 1412 1413 if (tlen < LLDP_INTF_NUM_LEN) { 1414 return 0; 1415 } 1416 1417 intf_num_subtype = GET_U_1(tptr); 1418 ND_PRINT("\n\t %s Interface Numbering (%u): %u", 1419 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype), 1420 intf_num_subtype, 1421 GET_BE_U_4(tptr + 1)); 1422 1423 tptr += LLDP_INTF_NUM_LEN; 1424 tlen -= LLDP_INTF_NUM_LEN; 1425 1426 /* 1427 * The OID is optional. 1428 */ 1429 if (tlen) { 1430 oid_len = GET_U_1(tptr); 1431 1432 if (tlen < 1U + oid_len) { 1433 return 0; 1434 } 1435 if (oid_len) { 1436 ND_PRINT("\n\t OID length %u", oid_len); 1437 nd_printjnp(ndo, tptr + 1, oid_len); 1438 } 1439 } 1440 1441 return 1; 1442 } 1443 1444 void 1445 lldp_print(netdissect_options *ndo, 1446 const u_char *pptr, u_int len) 1447 { 1448 uint8_t subtype; 1449 uint16_t tlv, cap, ena_cap; 1450 u_int oui, tlen, hexdump, tlv_type, tlv_len; 1451 const u_char *tptr; 1452 char *network_addr; 1453 1454 ndo->ndo_protocol = "lldp"; 1455 tptr = pptr; 1456 tlen = len; 1457 1458 ND_PRINT("LLDP, length %u", len); 1459 1460 while (tlen >= sizeof(tlv)) { 1461 1462 ND_TCHECK_LEN(tptr, sizeof(tlv)); 1463 1464 tlv = GET_BE_U_2(tptr); 1465 1466 tlv_type = LLDP_EXTRACT_TYPE(tlv); 1467 tlv_len = LLDP_EXTRACT_LEN(tlv); 1468 hexdump = FALSE; 1469 1470 tlen -= sizeof(tlv); 1471 tptr += sizeof(tlv); 1472 1473 if (ndo->ndo_vflag) { 1474 ND_PRINT("\n\t%s TLV (%u), length %u", 1475 tok2str(lldp_tlv_values, "Unknown", tlv_type), 1476 tlv_type, tlv_len); 1477 } 1478 1479 /* infinite loop check */ 1480 if (!tlv_type || !tlv_len) { 1481 break; 1482 } 1483 1484 ND_TCHECK_LEN(tptr, tlv_len); 1485 if (tlen < tlv_len) { 1486 goto trunc; 1487 } 1488 1489 switch (tlv_type) { 1490 1491 case LLDP_CHASSIS_ID_TLV: 1492 if (ndo->ndo_vflag) { 1493 if (tlv_len < 2) { 1494 goto trunc; 1495 } 1496 subtype = GET_U_1(tptr); 1497 ND_PRINT("\n\t Subtype %s (%u): ", 1498 tok2str(lldp_chassis_subtype_values, "Unknown", subtype), 1499 subtype); 1500 1501 switch (subtype) { 1502 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE: 1503 if (tlv_len < 1+6) { 1504 goto trunc; 1505 } 1506 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1)); 1507 break; 1508 1509 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */ 1510 case LLDP_CHASSIS_LOCAL_SUBTYPE: 1511 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE: 1512 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE: 1513 case LLDP_CHASSIS_PORT_COMP_SUBTYPE: 1514 nd_printjnp(ndo, tptr + 1, tlv_len - 1); 1515 break; 1516 1517 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE: 1518 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1519 if (network_addr == NULL) { 1520 goto trunc; 1521 } 1522 ND_PRINT("%s", network_addr); 1523 break; 1524 1525 default: 1526 hexdump = TRUE; 1527 break; 1528 } 1529 } 1530 break; 1531 1532 case LLDP_PORT_ID_TLV: 1533 if (ndo->ndo_vflag) { 1534 if (tlv_len < 2) { 1535 goto trunc; 1536 } 1537 subtype = GET_U_1(tptr); 1538 ND_PRINT("\n\t Subtype %s (%u): ", 1539 tok2str(lldp_port_subtype_values, "Unknown", subtype), 1540 subtype); 1541 1542 switch (subtype) { 1543 case LLDP_PORT_MAC_ADDR_SUBTYPE: 1544 if (tlv_len < 1+6) { 1545 goto trunc; 1546 } 1547 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1)); 1548 break; 1549 1550 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */ 1551 case LLDP_PORT_LOCAL_SUBTYPE: 1552 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE: 1553 case LLDP_PORT_INTF_ALIAS_SUBTYPE: 1554 case LLDP_PORT_PORT_COMP_SUBTYPE: 1555 nd_printjnp(ndo, tptr + 1, tlv_len - 1); 1556 break; 1557 1558 case LLDP_PORT_NETWORK_ADDR_SUBTYPE: 1559 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1); 1560 if (network_addr == NULL) { 1561 goto trunc; 1562 } 1563 ND_PRINT("%s", network_addr); 1564 break; 1565 1566 default: 1567 hexdump = TRUE; 1568 break; 1569 } 1570 } 1571 break; 1572 1573 case LLDP_TTL_TLV: 1574 if (ndo->ndo_vflag) { 1575 if (tlv_len < 2) { 1576 goto trunc; 1577 } 1578 ND_PRINT(": TTL %us", GET_BE_U_2(tptr)); 1579 } 1580 break; 1581 1582 case LLDP_PORT_DESCR_TLV: 1583 if (ndo->ndo_vflag) { 1584 ND_PRINT(": "); 1585 nd_printjnp(ndo, tptr, tlv_len); 1586 } 1587 break; 1588 1589 case LLDP_SYSTEM_NAME_TLV: 1590 /* 1591 * The system name is also print in non-verbose mode 1592 * similar to the CDP printer. 1593 */ 1594 ND_PRINT(": "); 1595 nd_printjnp(ndo, tptr, tlv_len); 1596 break; 1597 1598 case LLDP_SYSTEM_DESCR_TLV: 1599 if (ndo->ndo_vflag) { 1600 ND_PRINT("\n\t "); 1601 nd_printjnp(ndo, tptr, tlv_len); 1602 } 1603 break; 1604 1605 case LLDP_SYSTEM_CAP_TLV: 1606 if (ndo->ndo_vflag) { 1607 /* 1608 * XXX - IEEE Std 802.1AB-2009 says the first octet 1609 * if a chassis ID subtype, with the system 1610 * capabilities and enabled capabilities following 1611 * it. 1612 */ 1613 if (tlv_len < 4) { 1614 goto trunc; 1615 } 1616 cap = GET_BE_U_2(tptr); 1617 ena_cap = GET_BE_U_2(tptr + 2); 1618 ND_PRINT("\n\t System Capabilities [%s] (0x%04x)", 1619 bittok2str(lldp_cap_values, "none", cap), cap); 1620 ND_PRINT("\n\t Enabled Capabilities [%s] (0x%04x)", 1621 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap); 1622 } 1623 break; 1624 1625 case LLDP_MGMT_ADDR_TLV: 1626 if (ndo->ndo_vflag) { 1627 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) { 1628 goto trunc; 1629 } 1630 } 1631 break; 1632 1633 case LLDP_PRIVATE_TLV: 1634 if (ndo->ndo_vflag) { 1635 if (tlv_len < 3) { 1636 goto trunc; 1637 } 1638 oui = GET_BE_U_3(tptr); 1639 ND_PRINT(": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui); 1640 1641 switch (oui) { 1642 case OUI_IEEE_8021_PRIVATE: 1643 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len); 1644 break; 1645 case OUI_IEEE_8023_PRIVATE: 1646 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len); 1647 break; 1648 case OUI_IANA: 1649 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len); 1650 break; 1651 case OUI_TIA: 1652 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len); 1653 break; 1654 case OUI_DCBX: 1655 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len); 1656 break; 1657 default: 1658 hexdump = TRUE; 1659 break; 1660 } 1661 } 1662 break; 1663 1664 default: 1665 hexdump = TRUE; 1666 break; 1667 } 1668 1669 /* do we also want to see a hex dump ? */ 1670 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) { 1671 print_unknown_data(ndo, tptr, "\n\t ", tlv_len); 1672 } 1673 1674 tlen -= tlv_len; 1675 tptr += tlv_len; 1676 } 1677 return; 1678 trunc: 1679 nd_print_trunc(ndo); 1680 } 1681