1 /*
2 * Copyright (c) 1998-2007 The TCPDUMP project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that: (1) source code
6 * distributions retain the above copyright notice and this paragraph
7 * in its entirety, and (2) distributions including binary code include
8 * the above copyright notice and this paragraph in its entirety in
9 * the documentation or other materials provided with the distribution.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 * FOR A PARTICULAR PURPOSE.
14 *
15 * Original code by Hannes Gredler (hannes@gredler.at)
16 * IEEE and TIA extensions by Carles Kishimoto <carles.kishimoto@gmail.com>
17 * DCBX extensions by Kaladhar Musunuru <kaladharm@sourceforge.net>
18 */
19
20 /* \summary: IEEE 802.1ab Link Layer Discovery Protocol (LLDP) printer */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include "netdissect-stdinc.h"
27
28 #include <stdio.h>
29
30 #include "netdissect.h"
31 #include "extract.h"
32 #include "addrtoname.h"
33 #include "af.h"
34 #include "oui.h"
35
36 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9)
37 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff)
38
39 /*
40 * TLV type codes
41 */
42 #define LLDP_END_TLV 0
43 #define LLDP_CHASSIS_ID_TLV 1
44 #define LLDP_PORT_ID_TLV 2
45 #define LLDP_TTL_TLV 3
46 #define LLDP_PORT_DESCR_TLV 4
47 #define LLDP_SYSTEM_NAME_TLV 5
48 #define LLDP_SYSTEM_DESCR_TLV 6
49 #define LLDP_SYSTEM_CAP_TLV 7
50 #define LLDP_MGMT_ADDR_TLV 8
51 #define LLDP_PRIVATE_TLV 127
52
53 static const struct tok lldp_tlv_values[] = {
54 { LLDP_END_TLV, "End" },
55 { LLDP_CHASSIS_ID_TLV, "Chassis ID" },
56 { LLDP_PORT_ID_TLV, "Port ID" },
57 { LLDP_TTL_TLV, "Time to Live" },
58 { LLDP_PORT_DESCR_TLV, "Port Description" },
59 { LLDP_SYSTEM_NAME_TLV, "System Name" },
60 { LLDP_SYSTEM_DESCR_TLV, "System Description" },
61 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" },
62 { LLDP_MGMT_ADDR_TLV, "Management Address" },
63 { LLDP_PRIVATE_TLV, "Organization specific" },
64 { 0, NULL}
65 };
66
67 /*
68 * Chassis ID subtypes
69 */
70 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1
71 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2
72 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3
73 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4
74 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5
75 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6
76 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7
77
78 static const struct tok lldp_chassis_subtype_values[] = {
79 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"},
80 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"},
81 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"},
82 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"},
83 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"},
84 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"},
85 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"},
86 { 0, NULL}
87 };
88
89 /*
90 * Port ID subtypes
91 */
92 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1
93 #define LLDP_PORT_PORT_COMP_SUBTYPE 2
94 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3
95 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4
96 #define LLDP_PORT_INTF_NAME_SUBTYPE 5
97 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6
98 #define LLDP_PORT_LOCAL_SUBTYPE 7
99
100 static const struct tok lldp_port_subtype_values[] = {
101 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"},
102 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"},
103 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"},
104 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"},
105 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"},
106 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"},
107 { LLDP_PORT_LOCAL_SUBTYPE, "Local"},
108 { 0, NULL}
109 };
110
111 /*
112 * System Capabilities
113 */
114 #define LLDP_CAP_OTHER (1 << 0)
115 #define LLDP_CAP_REPEATER (1 << 1)
116 #define LLDP_CAP_BRIDGE (1 << 2)
117 #define LLDP_CAP_WLAN_AP (1 << 3)
118 #define LLDP_CAP_ROUTER (1 << 4)
119 #define LLDP_CAP_PHONE (1 << 5)
120 #define LLDP_CAP_DOCSIS (1 << 6)
121 #define LLDP_CAP_STATION_ONLY (1 << 7)
122
123 static const struct tok lldp_cap_values[] = {
124 { LLDP_CAP_OTHER, "Other"},
125 { LLDP_CAP_REPEATER, "Repeater"},
126 { LLDP_CAP_BRIDGE, "Bridge"},
127 { LLDP_CAP_WLAN_AP, "WLAN AP"},
128 { LLDP_CAP_ROUTER, "Router"},
129 { LLDP_CAP_PHONE, "Telephone"},
130 { LLDP_CAP_DOCSIS, "Docsis"},
131 { LLDP_CAP_STATION_ONLY, "Station Only"},
132 { 0, NULL}
133 };
134
135 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1
136 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2
137 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3
138 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4
139 #define LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR 7
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_LINKAGGR, "Link aggregation"},
154 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"},
155 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"},
156 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"},
157 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"},
158 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"},
159 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"},
160 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"},
161 { 0, NULL}
162 };
163
164 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1)
165 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2)
166
167 static const struct tok lldp_8021_port_protocol_id_values[] = {
168 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"},
169 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"},
170 { 0, NULL}
171 };
172
173 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1
174 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2
175 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3
176 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4
177
178 static const struct tok lldp_8023_subtype_values[] = {
179 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"},
180 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"},
181 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"},
182 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"},
183 { 0, NULL}
184 };
185
186 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1
187 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2
188 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3
189 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4
190 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5
191 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6
192 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7
193 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8
194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9
195 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10
196 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11
197
198 static const struct tok lldp_tia_subtype_values[] = {
199 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" },
200 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" },
201 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" },
202 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" },
203 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" },
204 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" },
205 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" },
206 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" },
207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" },
208 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" },
209 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" },
210 { 0, NULL}
211 };
212
213 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1
214 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2
215
216 static const struct tok lldp_tia_location_altitude_type_values[] = {
217 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"},
218 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"},
219 { 0, NULL}
220 };
221
222 /* ANSI/TIA-1057 - Annex B */
223 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1
224 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2
225 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3
226 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4
227 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5
228 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6
229
230 static const struct tok lldp_tia_location_lci_catype_values[] = {
231 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"},
232 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"},
233 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"},
234 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"},
235 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"},
236 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"},
237 { 0, NULL}
238 };
239
240 static const struct tok lldp_tia_location_lci_what_values[] = {
241 { 0, "location of DHCP server"},
242 { 1, "location of the network element believed to be closest to the client"},
243 { 2, "location of the client"},
244 { 0, NULL}
245 };
246
247 /*
248 * From RFC 3636 - dot3MauType
249 */
250 #define LLDP_MAU_TYPE_UNKNOWN 0
251 #define LLDP_MAU_TYPE_AUI 1
252 #define LLDP_MAU_TYPE_10BASE_5 2
253 #define LLDP_MAU_TYPE_FOIRL 3
254 #define LLDP_MAU_TYPE_10BASE_2 4
255 #define LLDP_MAU_TYPE_10BASE_T 5
256 #define LLDP_MAU_TYPE_10BASE_FP 6
257 #define LLDP_MAU_TYPE_10BASE_FB 7
258 #define LLDP_MAU_TYPE_10BASE_FL 8
259 #define LLDP_MAU_TYPE_10BROAD36 9
260 #define LLDP_MAU_TYPE_10BASE_T_HD 10
261 #define LLDP_MAU_TYPE_10BASE_T_FD 11
262 #define LLDP_MAU_TYPE_10BASE_FL_HD 12
263 #define LLDP_MAU_TYPE_10BASE_FL_FD 13
264 #define LLDP_MAU_TYPE_100BASE_T4 14
265 #define LLDP_MAU_TYPE_100BASE_TX_HD 15
266 #define LLDP_MAU_TYPE_100BASE_TX_FD 16
267 #define LLDP_MAU_TYPE_100BASE_FX_HD 17
268 #define LLDP_MAU_TYPE_100BASE_FX_FD 18
269 #define LLDP_MAU_TYPE_100BASE_T2_HD 19
270 #define LLDP_MAU_TYPE_100BASE_T2_FD 20
271 #define LLDP_MAU_TYPE_1000BASE_X_HD 21
272 #define LLDP_MAU_TYPE_1000BASE_X_FD 22
273 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23
274 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24
275 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25
276 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26
277 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27
278 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28
279 #define LLDP_MAU_TYPE_1000BASE_T_HD 29
280 #define LLDP_MAU_TYPE_1000BASE_T_FD 30
281 #define LLDP_MAU_TYPE_10GBASE_X 31
282 #define LLDP_MAU_TYPE_10GBASE_LX4 32
283 #define LLDP_MAU_TYPE_10GBASE_R 33
284 #define LLDP_MAU_TYPE_10GBASE_ER 34
285 #define LLDP_MAU_TYPE_10GBASE_LR 35
286 #define LLDP_MAU_TYPE_10GBASE_SR 36
287 #define LLDP_MAU_TYPE_10GBASE_W 37
288 #define LLDP_MAU_TYPE_10GBASE_EW 38
289 #define LLDP_MAU_TYPE_10GBASE_LW 39
290 #define LLDP_MAU_TYPE_10GBASE_SW 40
291
292 static const struct tok lldp_mau_types_values[] = {
293 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"},
294 { LLDP_MAU_TYPE_AUI, "AUI"},
295 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"},
296 { LLDP_MAU_TYPE_FOIRL, "FOIRL"},
297 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"},
298 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"},
299 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"},
300 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"},
301 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"},
302 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"},
303 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"},
304 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"},
305 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"},
306 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"},
307 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"},
308 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"},
309 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"},
310 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"},
311 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"},
312 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"},
313 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"},
314 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"},
315 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"},
316 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"},
317 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"},
318 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"},
319 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"},
320 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"},
321 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"},
322 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"},
323 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"},
324 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"},
325 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"},
326 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"},
327 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"},
328 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"},
329 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"},
330 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"},
331 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"},
332 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"},
333 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"},
334 { 0, NULL}
335 };
336
337 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0)
338 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1)
339
340 static const struct tok lldp_8023_autonegotiation_values[] = {
341 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"},
342 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"},
343 { 0, NULL}
344 };
345
346 #define LLDP_TIA_CAPABILITY_MED (1 << 0)
347 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1)
348 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2)
349 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3)
350 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4)
351 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5)
352
353 static const struct tok lldp_tia_capabilities_values[] = {
354 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"},
355 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"},
356 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"},
357 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"},
358 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"},
359 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"},
360 { 0, NULL}
361 };
362
363 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1
364 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2
365 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3
366 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4
367
368 static const struct tok lldp_tia_device_type_values[] = {
369 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"},
370 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"},
371 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"},
372 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"},
373 { 0, NULL}
374 };
375
376 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1
377 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2
378 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3
379 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4
380 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5
381 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6
382 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7
383 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8
384
385 static const struct tok lldp_tia_application_type_values[] = {
386 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"},
387 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"},
388 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"},
389 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"},
390 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"},
391 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"},
392 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"},
393 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"},
394 { 0, NULL}
395 };
396
397 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5)
398 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6)
399 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7)
400
401 static const struct tok lldp_tia_network_policy_bits_values[] = {
402 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"},
403 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"},
404 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"},
405 { 0, NULL}
406 };
407
408 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1)
409 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6)
410 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f)
411
412 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1
413 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2
414 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3
415
416 static const struct tok lldp_tia_location_data_format_values[] = {
417 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"},
418 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"},
419 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"},
420 { 0, NULL}
421 };
422
423 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1
424 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2
425 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3
426
427 static const struct tok lldp_tia_location_datum_type_values[] = {
428 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"},
429 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"},
430 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"},
431 { 0, NULL}
432 };
433
434 #define LLDP_TIA_POWER_SOURCE_PSE 1
435 #define LLDP_TIA_POWER_SOURCE_LOCAL 2
436 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3
437
438 static const struct tok lldp_tia_power_source_values[] = {
439 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"},
440 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"},
441 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"},
442 { 0, NULL}
443 };
444
445 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1
446 #define LLDP_TIA_POWER_PRIORITY_HIGH 2
447 #define LLDP_TIA_POWER_PRIORITY_LOW 3
448
449 static const struct tok lldp_tia_power_priority_values[] = {
450 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"},
451 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"},
452 { LLDP_TIA_POWER_PRIORITY_LOW, "low"},
453 { 0, NULL}
454 };
455
456 #define LLDP_TIA_POWER_VAL_MAX 1024
457
458 static const struct tok lldp_tia_inventory_values[] = {
459 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" },
460 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" },
461 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" },
462 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" },
463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" },
464 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" },
465 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" },
466 { 0, NULL}
467 };
468
469 /*
470 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits
471 */
472 #define LLDP_MAU_PMD_OTHER (1 << 15)
473 #define LLDP_MAU_PMD_10BASE_T (1 << 14)
474 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13)
475 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12)
476 #define LLDP_MAU_PMD_100BASE_TX (1 << 11)
477 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10)
478 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9)
479 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8)
480 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7)
481 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6)
482 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5)
483 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4)
484 #define LLDP_MAU_PMD_1000BASE_X (1 << 3)
485 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2)
486 #define LLDP_MAU_PMD_1000BASE_T (1 << 1)
487 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0)
488
489 static const struct tok lldp_pmd_capability_values[] = {
490 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"},
491 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"},
492 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"},
493 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"},
494 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"},
495 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"},
496 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"},
497 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"},
498 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"},
499 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"},
500 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"},
501 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"},
502 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"},
503 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"},
504 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"},
505 { 0, NULL}
506 };
507
508 #define LLDP_MDI_PORT_CLASS (1 << 0)
509 #define LLDP_MDI_POWER_SUPPORT (1 << 1)
510 #define LLDP_MDI_POWER_STATE (1 << 2)
511 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3)
512
513 static const struct tok lldp_mdi_values[] = {
514 { LLDP_MDI_PORT_CLASS, "PSE"},
515 { LLDP_MDI_POWER_SUPPORT, "supported"},
516 { LLDP_MDI_POWER_STATE, "enabled"},
517 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"},
518 { 0, NULL}
519 };
520
521 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1
522 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2
523
524 static const struct tok lldp_mdi_power_pairs_values[] = {
525 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"},
526 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"},
527 { 0, NULL}
528 };
529
530 #define LLDP_MDI_POWER_CLASS0 1
531 #define LLDP_MDI_POWER_CLASS1 2
532 #define LLDP_MDI_POWER_CLASS2 3
533 #define LLDP_MDI_POWER_CLASS3 4
534 #define LLDP_MDI_POWER_CLASS4 5
535
536 static const struct tok lldp_mdi_power_class_values[] = {
537 { LLDP_MDI_POWER_CLASS0, "class0"},
538 { LLDP_MDI_POWER_CLASS1, "class1"},
539 { LLDP_MDI_POWER_CLASS2, "class2"},
540 { LLDP_MDI_POWER_CLASS3, "class3"},
541 { LLDP_MDI_POWER_CLASS4, "class4"},
542 { 0, NULL}
543 };
544
545 #define LLDP_AGGREGATION_CAPABILITY (1 << 0)
546 #define LLDP_AGGREGATION_STATUS (1 << 1)
547
548 static const struct tok lldp_aggregation_values[] = {
549 { LLDP_AGGREGATION_CAPABILITY, "supported"},
550 { LLDP_AGGREGATION_STATUS, "enabled"},
551 { 0, NULL}
552 };
553
554 /*
555 * DCBX protocol subtypes.
556 */
557 #define LLDP_DCBX_SUBTYPE_1 1
558 #define LLDP_DCBX_SUBTYPE_2 2
559
560 static const struct tok lldp_dcbx_subtype_values[] = {
561 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" },
562 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" },
563 { 0, NULL}
564 };
565
566 #define LLDP_DCBX_CONTROL_TLV 1
567 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2
568 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3
569 #define LLDP_DCBX_APPLICATION_TLV 4
570
571 /*
572 * Interface numbering subtypes.
573 */
574 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2
575 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3
576
577 static const struct tok lldp_intf_numb_subtype_values[] = {
578 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" },
579 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" },
580 { 0, NULL}
581 };
582
583 #define LLDP_INTF_NUM_LEN 5
584
585 #define LLDP_EVB_MODE_NOT_SUPPORTED 0
586 #define LLDP_EVB_MODE_EVB_BRIDGE 1
587 #define LLDP_EVB_MODE_EVB_STATION 2
588 #define LLDP_EVB_MODE_RESERVED 3
589
590 static const struct tok lldp_evb_mode_values[]={
591 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"},
592 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"},
593 { LLDP_EVB_MODE_EVB_STATION, "EVB Station"},
594 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"},
595 { 0, NULL},
596 };
597
598 #define NO_OF_BITS 8
599 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6
600 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25
601 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25
602 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6
603 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5
604 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9
605 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8
606
607 #define LLDP_IANA_SUBTYPE_MUDURL 1
608
609 static const struct tok lldp_iana_subtype_values[] = {
610 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" },
611 { 0, NULL }
612 };
613
614
615 static void
print_ets_priority_assignment_table(netdissect_options * ndo,const u_char * ptr)616 print_ets_priority_assignment_table(netdissect_options *ndo,
617 const u_char *ptr)
618 {
619 ND_PRINT("\n\t Priority Assignment Table");
620 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
621 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
622 GET_U_1(ptr) >> 4, GET_U_1(ptr) & 0x0f,
623 GET_U_1(ptr + 1) >> 4, GET_U_1(ptr + 1) & 0x0f,
624 GET_U_1(ptr + 2) >> 4, GET_U_1(ptr + 2) & 0x0f,
625 GET_U_1(ptr + 3) >> 4, GET_U_1(ptr + 3) & 0x0f);
626 }
627
628 static void
print_tc_bandwidth_table(netdissect_options * ndo,const u_char * ptr)629 print_tc_bandwidth_table(netdissect_options *ndo,
630 const u_char *ptr)
631 {
632 ND_PRINT("\n\t TC Bandwidth Table");
633 ND_PRINT("\n\t TC%% : 0 1 2 3 4 5 6 7");
634 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
635 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2),
636 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5),
637 GET_U_1(ptr + 6), GET_U_1(ptr + 7));
638 }
639
640 static void
print_tsa_assignment_table(netdissect_options * ndo,const u_char * ptr)641 print_tsa_assignment_table(netdissect_options *ndo,
642 const u_char *ptr)
643 {
644 ND_PRINT("\n\t TSA Assignment Table");
645 ND_PRINT("\n\t Traffic Class: 0 1 2 3 4 5 6 7");
646 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
647 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2),
648 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5),
649 GET_U_1(ptr + 6), GET_U_1(ptr + 7));
650 }
651
652 /*
653 * Print IEEE 802.1 private extensions. (802.1AB annex E)
654 */
655 static int
lldp_private_8021_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)656 lldp_private_8021_print(netdissect_options *ndo,
657 const u_char *tptr, u_int tlv_len)
658 {
659 int hexdump = FALSE;
660 u_int subtype;
661 u_int sublen;
662 u_int tval;
663 u_int i;
664
665 if (tlv_len < 4) {
666 return hexdump;
667 }
668 subtype = GET_U_1(tptr + 3);
669
670 ND_PRINT("\n\t %s Subtype (%u)",
671 tok2str(lldp_8021_subtype_values, "unknown", subtype),
672 subtype);
673
674 switch (subtype) {
675 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID:
676 if (tlv_len < 6) {
677 return hexdump;
678 }
679 ND_PRINT("\n\t port vlan id (PVID): %u",
680 GET_BE_U_2(tptr + 4));
681 break;
682 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID:
683 if (tlv_len < 7) {
684 return hexdump;
685 }
686 ND_PRINT("\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)",
687 GET_BE_U_2(tptr + 5),
688 bittok2str(lldp_8021_port_protocol_id_values, "none", GET_U_1(tptr + 4)),
689 GET_U_1(tptr + 4));
690 break;
691 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME:
692 if (tlv_len < 6) {
693 return hexdump;
694 }
695 ND_PRINT("\n\t vlan id (VID): %u", GET_BE_U_2(tptr + 4));
696 if (tlv_len < 7) {
697 return hexdump;
698 }
699 sublen = GET_U_1(tptr + 6);
700 if (tlv_len < 7+sublen) {
701 return hexdump;
702 }
703 ND_PRINT("\n\t vlan name: ");
704 nd_printjnp(ndo, tptr + 7, sublen);
705 break;
706 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY:
707 if (tlv_len < 5) {
708 return hexdump;
709 }
710 sublen = GET_U_1(tptr + 4);
711 if (tlv_len < 5+sublen) {
712 return hexdump;
713 }
714 ND_PRINT("\n\t protocol identity: ");
715 nd_printjnp(ndo, tptr + 5, sublen);
716 break;
717
718 case LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR:
719 if (tlv_len < 9) {
720 return hexdump;
721 }
722 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u",
723 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))),
724 GET_BE_U_4(tptr + 5));
725 break;
726
727 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION:
728 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){
729 return hexdump;
730 }
731 tval=GET_U_1(tptr + 4);
732 ND_PRINT("\n\t Pre-Priority CNPV Indicator");
733 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
734 ND_PRINT("\n\t Value : ");
735 for(i=0;i<NO_OF_BITS;i++)
736 ND_PRINT("%-2d ", (tval >> i) & 0x01);
737 tval=GET_U_1(tptr + 5);
738 ND_PRINT("\n\t Pre-Priority Ready Indicator");
739 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
740 ND_PRINT("\n\t Value : ");
741 for(i=0;i<NO_OF_BITS;i++)
742 ND_PRINT("%-2d ", (tval >> i) & 0x01);
743 break;
744
745 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION:
746 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) {
747 return hexdump;
748 }
749 tval=GET_U_1(tptr + 4);
750 ND_PRINT("\n\t Willing:%u, CBS:%u, RES:%u, Max TCs:%u",
751 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07);
752
753 /*Print Priority Assignment Table*/
754 print_ets_priority_assignment_table(ndo, tptr + 5);
755
756 /*Print TC Bandwidth Table*/
757 print_tc_bandwidth_table(ndo, tptr + 9);
758
759 /* Print TSA Assignment Table */
760 print_tsa_assignment_table(ndo, tptr + 17);
761
762 break;
763
764 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION:
765 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) {
766 return hexdump;
767 }
768 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4));
769 /*Print Priority Assignment Table */
770 print_ets_priority_assignment_table(ndo, tptr + 5);
771 /*Print TC Bandwidth Table */
772 print_tc_bandwidth_table(ndo, tptr + 9);
773 /* Print TSA Assignment Table */
774 print_tsa_assignment_table(ndo, tptr + 17);
775 break;
776
777 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION:
778 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) {
779 return hexdump;
780 }
781 tval=GET_U_1(tptr + 4);
782 ND_PRINT("\n\t Willing: %u, MBC: %u, RES: %u, PFC cap:%u ",
783 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f));
784 ND_PRINT("\n\t PFC Enable");
785 tval=GET_U_1(tptr + 5);
786 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
787 ND_PRINT("\n\t Value : ");
788 for(i=0;i<NO_OF_BITS;i++)
789 ND_PRINT("%-2d ", (tval >> i) & 0x01);
790 break;
791
792 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY:
793 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) {
794 return hexdump;
795 }
796 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4));
797 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){
798 return hexdump;
799 }
800 /* Length of Application Priority Table */
801 sublen=tlv_len-5;
802 if(sublen%3!=0){
803 return hexdump;
804 }
805 i=0;
806 ND_PRINT("\n\t Application Priority Table");
807 while(i<sublen) {
808 tval=GET_U_1(tptr + i + 5);
809 ND_PRINT("\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u",
810 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07),
811 GET_BE_U_2(tptr + i + 6));
812 i=i+3;
813 }
814 break;
815 case LLDP_PRIVATE_8021_SUBTYPE_EVB:
816 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){
817 return hexdump;
818 }
819 ND_PRINT("\n\t EVB Bridge Status");
820 tval=GET_U_1(tptr + 4);
821 ND_PRINT("\n\t RES: %u, BGID: %u, RRCAP: %u, RRCTR: %u",
822 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01);
823 ND_PRINT("\n\t EVB Station Status");
824 tval=GET_U_1(tptr + 5);
825 ND_PRINT("\n\t RES: %u, SGID: %u, RRREQ: %u,RRSTAT: %u",
826 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03);
827 tval=GET_U_1(tptr + 6);
828 ND_PRINT("\n\t R: %u, RTE: %u, ",tval >> 5, tval & 0x1f);
829 tval=GET_U_1(tptr + 7);
830 ND_PRINT("EVB Mode: %s [%u]",
831 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6);
832 ND_PRINT("\n\t ROL: %u, RWD: %u, ", (tval >> 5) & 0x01, tval & 0x1f);
833 tval=GET_U_1(tptr + 8);
834 ND_PRINT("RES: %u, ROL: %u, RKA: %u", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f);
835 break;
836
837 case LLDP_PRIVATE_8021_SUBTYPE_CDCP:
838 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){
839 return hexdump;
840 }
841 tval=GET_U_1(tptr + 4);
842 ND_PRINT("\n\t Role: %u, RES: %u, Scomp: %u ",
843 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01);
844 ND_PRINT("ChnCap: %u", GET_BE_U_2(tptr + 6) & 0x0fff);
845 sublen=tlv_len-8;
846 if(sublen%3!=0) {
847 return hexdump;
848 }
849 i=0;
850 while(i<sublen) {
851 tval=GET_BE_U_3(tptr + i + 8);
852 ND_PRINT("\n\t SCID: %u, SVID: %u",
853 tval >> 12, tval & 0x000fff);
854 i=i+3;
855 }
856 break;
857
858 default:
859 hexdump = TRUE;
860 break;
861 }
862
863 return hexdump;
864 }
865
866 /*
867 * Print IEEE 802.3 private extensions. (802.3bc)
868 */
869 static int
lldp_private_8023_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)870 lldp_private_8023_print(netdissect_options *ndo,
871 const u_char *tptr, u_int tlv_len)
872 {
873 int hexdump = FALSE;
874 u_int subtype;
875
876 if (tlv_len < 4) {
877 return hexdump;
878 }
879 subtype = GET_U_1(tptr + 3);
880
881 ND_PRINT("\n\t %s Subtype (%u)",
882 tok2str(lldp_8023_subtype_values, "unknown", subtype),
883 subtype);
884
885 switch (subtype) {
886 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY:
887 if (tlv_len < 9) {
888 return hexdump;
889 }
890 ND_PRINT("\n\t autonegotiation [%s] (0x%02x)",
891 bittok2str(lldp_8023_autonegotiation_values, "none", GET_U_1(tptr + 4)),
892 GET_U_1(tptr + 4));
893 ND_PRINT("\n\t PMD autoneg capability [%s] (0x%04x)",
894 bittok2str(lldp_pmd_capability_values,"unknown", GET_BE_U_2(tptr + 5)),
895 GET_BE_U_2(tptr + 5));
896 ND_PRINT("\n\t MAU type %s (0x%04x)",
897 tok2str(lldp_mau_types_values, "unknown", GET_BE_U_2(tptr + 7)),
898 GET_BE_U_2(tptr + 7));
899 break;
900
901 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER:
902 if (tlv_len < 7) {
903 return hexdump;
904 }
905 ND_PRINT("\n\t MDI power support [%s], power pair %s, power class %s",
906 bittok2str(lldp_mdi_values, "none", GET_U_1((tptr + 4))),
907 tok2str(lldp_mdi_power_pairs_values, "unknown", GET_U_1((tptr + 5))),
908 tok2str(lldp_mdi_power_class_values, "unknown", GET_U_1((tptr + 6))));
909 break;
910
911 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR:
912 if (tlv_len < 9) {
913 return hexdump;
914 }
915 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u",
916 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))),
917 GET_BE_U_4(tptr + 5));
918 break;
919
920 case LLDP_PRIVATE_8023_SUBTYPE_MTU:
921 if (tlv_len < 6) {
922 return hexdump;
923 }
924 ND_PRINT("\n\t MTU size %u", GET_BE_U_2(tptr + 4));
925 break;
926
927 default:
928 hexdump = TRUE;
929 break;
930 }
931
932 return hexdump;
933 }
934
935 /*
936 * Extract 34bits of latitude/longitude coordinates.
937 */
938 static uint64_t
lldp_extract_latlon(netdissect_options * ndo,const u_char * tptr)939 lldp_extract_latlon(netdissect_options *ndo, const u_char *tptr)
940 {
941 uint64_t latlon;
942
943 latlon = GET_U_1(tptr) & 0x3;
944 latlon = (latlon << 32) | GET_BE_U_4(tptr + 1);
945
946 return latlon;
947 }
948
949 /* objects defined in IANA subtype 00 00 5e
950 * (right now there is only one)
951 */
952
953
954 static int
lldp_private_iana_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)955 lldp_private_iana_print(netdissect_options *ndo,
956 const u_char *tptr, u_int tlv_len)
957 {
958 int hexdump = FALSE;
959 u_int subtype;
960
961 if (tlv_len < 8) {
962 return hexdump;
963 }
964 subtype = GET_U_1(tptr + 3);
965
966 ND_PRINT("\n\t %s Subtype (%u)",
967 tok2str(lldp_iana_subtype_values, "unknown", subtype),
968 subtype);
969
970 switch (subtype) {
971 case LLDP_IANA_SUBTYPE_MUDURL:
972 ND_PRINT("\n\t MUD-URL=");
973 (void)nd_printn(ndo, tptr+4, tlv_len-4, NULL);
974 break;
975 default:
976 hexdump=TRUE;
977 }
978
979 return hexdump;
980 }
981
982
983
984 /*
985 * Print private TIA extensions.
986 */
987 static int
lldp_private_tia_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)988 lldp_private_tia_print(netdissect_options *ndo,
989 const u_char *tptr, u_int tlv_len)
990 {
991 int hexdump = FALSE;
992 u_int subtype;
993 uint8_t location_format;
994 uint16_t power_val;
995 u_int lci_len;
996 uint8_t ca_type, ca_len;
997
998 if (tlv_len < 4) {
999 return hexdump;
1000 }
1001 subtype = GET_U_1(tptr + 3);
1002
1003 ND_PRINT("\n\t %s Subtype (%u)",
1004 tok2str(lldp_tia_subtype_values, "unknown", subtype),
1005 subtype);
1006
1007 switch (subtype) {
1008 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES:
1009 if (tlv_len < 7) {
1010 return hexdump;
1011 }
1012 ND_PRINT("\n\t Media capabilities [%s] (0x%04x)",
1013 bittok2str(lldp_tia_capabilities_values, "none",
1014 GET_BE_U_2(tptr + 4)), GET_BE_U_2(tptr + 4));
1015 ND_PRINT("\n\t Device type [%s] (0x%02x)",
1016 tok2str(lldp_tia_device_type_values, "unknown", GET_U_1(tptr + 6)),
1017 GET_U_1(tptr + 6));
1018 break;
1019
1020 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY:
1021 if (tlv_len < 8) {
1022 return hexdump;
1023 }
1024 ND_PRINT("\n\t Application type [%s] (0x%02x)",
1025 tok2str(lldp_tia_application_type_values, "none", GET_U_1(tptr + 4)),
1026 GET_U_1(tptr + 4));
1027 ND_PRINT(", Flags [%s]", bittok2str(
1028 lldp_tia_network_policy_bits_values, "none", GET_U_1((tptr + 5))));
1029 ND_PRINT("\n\t Vlan id %u",
1030 LLDP_EXTRACT_NETWORK_POLICY_VLAN(GET_BE_U_2(tptr + 5)));
1031 ND_PRINT(", L2 priority %u",
1032 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(GET_BE_U_2(tptr + 6)));
1033 ND_PRINT(", DSCP value %u",
1034 LLDP_EXTRACT_NETWORK_POLICY_DSCP(GET_BE_U_2(tptr + 6)));
1035 break;
1036
1037 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID:
1038 if (tlv_len < 5) {
1039 return hexdump;
1040 }
1041 location_format = GET_U_1(tptr + 4);
1042 ND_PRINT("\n\t Location data format %s (0x%02x)",
1043 tok2str(lldp_tia_location_data_format_values, "unknown", location_format),
1044 location_format);
1045
1046 switch (location_format) {
1047 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED:
1048 if (tlv_len < 21) {
1049 return hexdump;
1050 }
1051 ND_PRINT("\n\t Latitude resolution %u, latitude value %" PRIu64,
1052 (GET_U_1(tptr + 5) >> 2),
1053 lldp_extract_latlon(ndo, tptr + 5));
1054 ND_PRINT("\n\t Longitude resolution %u, longitude value %" PRIu64,
1055 (GET_U_1(tptr + 10) >> 2),
1056 lldp_extract_latlon(ndo, tptr + 10));
1057 ND_PRINT("\n\t Altitude type %s (%u)",
1058 tok2str(lldp_tia_location_altitude_type_values, "unknown",GET_U_1(tptr + 15) >> 4),
1059 (GET_U_1(tptr + 15) >> 4));
1060 ND_PRINT("\n\t Altitude resolution %u, altitude value 0x%x",
1061 (GET_BE_U_2(tptr + 15)>>6)&0x3f,
1062 (GET_BE_U_4(tptr + 16) & 0x3fffffff));
1063 ND_PRINT("\n\t Datum %s (0x%02x)",
1064 tok2str(lldp_tia_location_datum_type_values, "unknown", GET_U_1(tptr + 20)),
1065 GET_U_1(tptr + 20));
1066 break;
1067
1068 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS:
1069 if (tlv_len < 6) {
1070 return hexdump;
1071 }
1072 lci_len = GET_U_1(tptr + 5);
1073 if (lci_len < 3) {
1074 return hexdump;
1075 }
1076 if (tlv_len < 7+lci_len) {
1077 return hexdump;
1078 }
1079 ND_PRINT("\n\t LCI length %u, LCI what %s (0x%02x), Country-code ",
1080 lci_len,
1081 tok2str(lldp_tia_location_lci_what_values, "unknown", GET_U_1(tptr + 6)),
1082 GET_U_1(tptr + 6));
1083
1084 /* Country code */
1085 nd_printjnp(ndo, tptr + 7, 2);
1086
1087 lci_len = lci_len-3;
1088 tptr = tptr + 9;
1089
1090 /* Decode each civic address element */
1091 while (lci_len > 0) {
1092 if (lci_len < 2) {
1093 return hexdump;
1094 }
1095 ca_type = GET_U_1(tptr);
1096 ca_len = GET_U_1(tptr + 1);
1097
1098 tptr += 2;
1099 lci_len -= 2;
1100
1101 ND_PRINT("\n\t CA type \'%s\' (%u), length %u: ",
1102 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type),
1103 ca_type, ca_len);
1104
1105 /* basic sanity check */
1106 if ( ca_type == 0 || ca_len == 0) {
1107 return hexdump;
1108 }
1109 if (lci_len < ca_len) {
1110 return hexdump;
1111 }
1112
1113 nd_printjnp(ndo, tptr, ca_len);
1114 tptr += ca_len;
1115 lci_len -= ca_len;
1116 }
1117 break;
1118
1119 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN:
1120 ND_PRINT("\n\t ECS ELIN id ");
1121 nd_printjnp(ndo, tptr + 5, tlv_len - 5);
1122 break;
1123
1124 default:
1125 ND_PRINT("\n\t Location ID ");
1126 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5);
1127 }
1128 break;
1129
1130 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI:
1131 if (tlv_len < 7) {
1132 return hexdump;
1133 }
1134 ND_PRINT("\n\t Power type [%s]",
1135 (GET_U_1(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device");
1136 ND_PRINT(", Power source [%s]",
1137 tok2str(lldp_tia_power_source_values, "none", (GET_U_1((tptr + 4)) & 0x30) >> 4));
1138 ND_PRINT("\n\t Power priority [%s] (0x%02x)",
1139 tok2str(lldp_tia_power_priority_values, "none", GET_U_1(tptr + 4) & 0x0f),
1140 GET_U_1(tptr + 4) & 0x0f);
1141 power_val = GET_BE_U_2(tptr + 5);
1142 if (power_val < LLDP_TIA_POWER_VAL_MAX) {
1143 ND_PRINT(", Power %.1f Watts", ((float)power_val) / 10);
1144 } else {
1145 ND_PRINT(", Power %u (Reserved)", power_val);
1146 }
1147 break;
1148
1149 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV:
1150 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV:
1151 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV:
1152 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER:
1153 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME:
1154 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME:
1155 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID:
1156 ND_PRINT("\n\t %s ",
1157 tok2str(lldp_tia_inventory_values, "unknown", subtype));
1158 nd_printjnp(ndo, tptr + 4, tlv_len - 4);
1159 break;
1160
1161 default:
1162 hexdump = TRUE;
1163 break;
1164 }
1165
1166 return hexdump;
1167 }
1168
1169 /*
1170 * Print DCBX Protocol fields (V 1.01).
1171 */
1172 static int
lldp_private_dcbx_print(netdissect_options * ndo,const u_char * pptr,u_int len)1173 lldp_private_dcbx_print(netdissect_options *ndo,
1174 const u_char *pptr, u_int len)
1175 {
1176 int hexdump = FALSE;
1177 u_int subtype;
1178 uint16_t tval;
1179 uint16_t tlv;
1180 uint32_t i, pgval, uval;
1181 u_int tlen, tlv_type;
1182 uint16_t tlv_len;
1183 const u_char *tptr, *mptr;
1184
1185 if (len < 4) {
1186 return hexdump;
1187 }
1188 subtype = GET_U_1(pptr + 3);
1189
1190 ND_PRINT("\n\t %s Subtype (%u)",
1191 tok2str(lldp_dcbx_subtype_values, "unknown", subtype),
1192 subtype);
1193
1194 /* by passing old version */
1195 if (subtype == LLDP_DCBX_SUBTYPE_1)
1196 return TRUE;
1197
1198 tptr = pptr + 4;
1199 tlen = len - 4;
1200
1201 while (tlen >= sizeof(tlv)) {
1202
1203 ND_TCHECK_LEN(tptr, sizeof(tlv));
1204
1205 tlv = GET_BE_U_2(tptr);
1206
1207 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1208 tlv_len = LLDP_EXTRACT_LEN(tlv);
1209 hexdump = FALSE;
1210
1211 tlen -= sizeof(tlv);
1212 tptr += sizeof(tlv);
1213
1214 /* loop check */
1215 if (!tlv_type || !tlv_len) {
1216 break;
1217 }
1218
1219 ND_TCHECK_LEN(tptr, tlv_len);
1220 if (tlen < tlv_len) {
1221 goto trunc;
1222 }
1223
1224 /* decode every tlv */
1225 switch (tlv_type) {
1226 case LLDP_DCBX_CONTROL_TLV:
1227 if (tlv_len < 10) {
1228 goto trunc;
1229 }
1230 ND_PRINT("\n\t Control - Protocol Control (type 0x%x, length %u)",
1231 LLDP_DCBX_CONTROL_TLV, tlv_len);
1232 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1233 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1234 ND_PRINT("\n\t Sequence Number: %u", GET_BE_U_4(tptr + 2));
1235 ND_PRINT("\n\t Acknowledgement Number: %u",
1236 GET_BE_U_4(tptr + 6));
1237 break;
1238 case LLDP_DCBX_PRIORITY_GROUPS_TLV:
1239 if (tlv_len < 17) {
1240 goto trunc;
1241 }
1242 ND_PRINT("\n\t Feature - Priority Group (type 0x%x, length %u)",
1243 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len);
1244 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1245 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1246 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2));
1247 tval = GET_U_1(tptr + 2);
1248 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u",
1249 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1250 (tval & 0x20) ? 1 : 0);
1251 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3));
1252 ND_PRINT("\n\t Priority Allocation");
1253
1254 /*
1255 * Array of 8 4-bit priority group ID values; we fetch all
1256 * 32 bits and extract each nibble.
1257 */
1258 pgval = GET_BE_U_4(tptr + 4);
1259 for (i = 0; i <= 7; i++) {
1260 ND_PRINT("\n\t PgId_%u: %u",
1261 i, (pgval >> (28 - 4 * i)) & 0xF);
1262 }
1263 ND_PRINT("\n\t Priority Group Allocation");
1264 for (i = 0; i <= 7; i++)
1265 ND_PRINT("\n\t Pg percentage[%u]: %u", i,
1266 GET_U_1(tptr + 8 + i));
1267 ND_PRINT("\n\t NumTCsSupported: %u", GET_U_1(tptr + 8 + 8));
1268 break;
1269 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV:
1270 if (tlv_len < 6) {
1271 goto trunc;
1272 }
1273 ND_PRINT("\n\t Feature - Priority Flow Control");
1274 ND_PRINT(" (type 0x%x, length %u)",
1275 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len);
1276 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1277 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1278 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2));
1279 tval = GET_U_1(tptr + 2);
1280 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u",
1281 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1282 (tval & 0x20) ? 1 : 0);
1283 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3));
1284 tval = GET_U_1(tptr + 4);
1285 ND_PRINT("\n\t PFC Config (0x%02X)", GET_U_1(tptr + 4));
1286 for (i = 0; i <= 7; i++)
1287 ND_PRINT("\n\t Priority Bit %u: %s",
1288 i, (tval & (1 << i)) ? "Enabled" : "Disabled");
1289 ND_PRINT("\n\t NumTCPFCSupported: %u", GET_U_1(tptr + 5));
1290 break;
1291 case LLDP_DCBX_APPLICATION_TLV:
1292 if (tlv_len < 4) {
1293 goto trunc;
1294 }
1295 ND_PRINT("\n\t Feature - Application (type 0x%x, length %u)",
1296 LLDP_DCBX_APPLICATION_TLV, tlv_len);
1297 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1298 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1299 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2));
1300 tval = GET_U_1(tptr + 2);
1301 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u",
1302 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1303 (tval & 0x20) ? 1 : 0);
1304 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3));
1305 tval = tlv_len - 4;
1306 mptr = tptr + 4;
1307 while (tval >= 6) {
1308 ND_PRINT("\n\t Application Value");
1309 ND_PRINT("\n\t Application Protocol ID: 0x%04x",
1310 GET_BE_U_2(mptr));
1311 uval = GET_BE_U_3(mptr + 2);
1312 ND_PRINT("\n\t SF (0x%x) Application Protocol ID is %s",
1313 (uval >> 22),
1314 (uval >> 22) ? "Socket Number" : "L2 EtherType");
1315 ND_PRINT("\n\t OUI: 0x%06x", uval & 0x3fffff);
1316 ND_PRINT("\n\t User Priority Map: 0x%02x",
1317 GET_U_1(mptr + 5));
1318 tval = tval - 6;
1319 mptr = mptr + 6;
1320 }
1321 break;
1322 default:
1323 hexdump = TRUE;
1324 break;
1325 }
1326
1327 /* do we also want to see a hex dump ? */
1328 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1329 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1330 }
1331
1332 tlen -= tlv_len;
1333 tptr += tlv_len;
1334 }
1335
1336 trunc:
1337 return hexdump;
1338 }
1339
1340 static char *
lldp_network_addr_print(netdissect_options * ndo,const u_char * tptr,u_int len)1341 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len)
1342 {
1343 uint8_t af;
1344 static char buf[BUFSIZE];
1345 const char * (*pfunc)(netdissect_options *, const u_char *);
1346
1347 if (len < 1)
1348 return NULL;
1349 len--;
1350 af = GET_U_1(tptr);
1351 switch (af) {
1352 case AFNUM_INET:
1353 if (len < sizeof(nd_ipv4))
1354 return NULL;
1355 pfunc = ipaddr_string;
1356 break;
1357 case AFNUM_INET6:
1358 if (len < sizeof(nd_ipv6))
1359 return NULL;
1360 pfunc = ip6addr_string;
1361 break;
1362 case AFNUM_802:
1363 if (len < MAC_ADDR_LEN)
1364 return NULL;
1365 pfunc = etheraddr_string;
1366 break;
1367 default:
1368 pfunc = NULL;
1369 break;
1370 }
1371
1372 if (!pfunc) {
1373 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !",
1374 tok2str(af_values, "Unknown", af), af);
1375 } else {
1376 snprintf(buf, sizeof(buf), "AFI %s (%u): %s",
1377 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1));
1378 }
1379
1380 return buf;
1381 }
1382
1383 static int
lldp_mgmt_addr_tlv_print(netdissect_options * ndo,const u_char * pptr,u_int len)1384 lldp_mgmt_addr_tlv_print(netdissect_options *ndo,
1385 const u_char *pptr, u_int len)
1386 {
1387 uint8_t mgmt_addr_len, intf_num_subtype, oid_len;
1388 const u_char *tptr;
1389 u_int tlen;
1390 char *mgmt_addr;
1391
1392 tlen = len;
1393 tptr = pptr;
1394
1395 if (tlen < 1) {
1396 return 0;
1397 }
1398 mgmt_addr_len = GET_U_1(tptr);
1399 tptr++;
1400 tlen--;
1401
1402 if (tlen < mgmt_addr_len) {
1403 return 0;
1404 }
1405
1406 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len);
1407 if (mgmt_addr == NULL) {
1408 return 0;
1409 }
1410 ND_PRINT("\n\t Management Address length %u, %s",
1411 mgmt_addr_len, mgmt_addr);
1412 tptr += mgmt_addr_len;
1413 tlen -= mgmt_addr_len;
1414
1415 if (tlen < LLDP_INTF_NUM_LEN) {
1416 return 0;
1417 }
1418
1419 intf_num_subtype = GET_U_1(tptr);
1420 ND_PRINT("\n\t %s Interface Numbering (%u): %u",
1421 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype),
1422 intf_num_subtype,
1423 GET_BE_U_4(tptr + 1));
1424
1425 tptr += LLDP_INTF_NUM_LEN;
1426 tlen -= LLDP_INTF_NUM_LEN;
1427
1428 /*
1429 * The OID is optional.
1430 */
1431 if (tlen) {
1432 oid_len = GET_U_1(tptr);
1433
1434 if (tlen < 1U + oid_len) {
1435 return 0;
1436 }
1437 if (oid_len) {
1438 ND_PRINT("\n\t OID length %u", oid_len);
1439 nd_printjnp(ndo, tptr + 1, oid_len);
1440 }
1441 }
1442
1443 return 1;
1444 }
1445
1446 void
lldp_print(netdissect_options * ndo,const u_char * pptr,u_int len)1447 lldp_print(netdissect_options *ndo,
1448 const u_char *pptr, u_int len)
1449 {
1450 uint8_t subtype;
1451 uint16_t tlv, cap, ena_cap;
1452 u_int oui, tlen, hexdump, tlv_type, tlv_len;
1453 const u_char *tptr;
1454 char *network_addr;
1455
1456 ndo->ndo_protocol = "lldp";
1457 tptr = pptr;
1458 tlen = len;
1459
1460 ND_PRINT("LLDP, length %u", len);
1461
1462 while (tlen >= sizeof(tlv)) {
1463
1464 ND_TCHECK_LEN(tptr, sizeof(tlv));
1465
1466 tlv = GET_BE_U_2(tptr);
1467
1468 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1469 tlv_len = LLDP_EXTRACT_LEN(tlv);
1470 hexdump = FALSE;
1471
1472 tlen -= sizeof(tlv);
1473 tptr += sizeof(tlv);
1474
1475 if (ndo->ndo_vflag) {
1476 ND_PRINT("\n\t%s TLV (%u), length %u",
1477 tok2str(lldp_tlv_values, "Unknown", tlv_type),
1478 tlv_type, tlv_len);
1479 }
1480
1481 /* infinite loop check */
1482 if (!tlv_type || !tlv_len) {
1483 break;
1484 }
1485
1486 ND_TCHECK_LEN(tptr, tlv_len);
1487 if (tlen < tlv_len) {
1488 goto trunc;
1489 }
1490
1491 switch (tlv_type) {
1492
1493 case LLDP_CHASSIS_ID_TLV:
1494 if (ndo->ndo_vflag) {
1495 if (tlv_len < 2) {
1496 goto trunc;
1497 }
1498 subtype = GET_U_1(tptr);
1499 ND_PRINT("\n\t Subtype %s (%u): ",
1500 tok2str(lldp_chassis_subtype_values, "Unknown", subtype),
1501 subtype);
1502
1503 switch (subtype) {
1504 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE:
1505 if (tlv_len < 1+6) {
1506 goto trunc;
1507 }
1508 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1));
1509 break;
1510
1511 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */
1512 case LLDP_CHASSIS_LOCAL_SUBTYPE:
1513 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE:
1514 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE:
1515 case LLDP_CHASSIS_PORT_COMP_SUBTYPE:
1516 nd_printjnp(ndo, tptr + 1, tlv_len - 1);
1517 break;
1518
1519 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE:
1520 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1521 if (network_addr == NULL) {
1522 goto trunc;
1523 }
1524 ND_PRINT("%s", network_addr);
1525 break;
1526
1527 default:
1528 hexdump = TRUE;
1529 break;
1530 }
1531 }
1532 break;
1533
1534 case LLDP_PORT_ID_TLV:
1535 if (ndo->ndo_vflag) {
1536 if (tlv_len < 2) {
1537 goto trunc;
1538 }
1539 subtype = GET_U_1(tptr);
1540 ND_PRINT("\n\t Subtype %s (%u): ",
1541 tok2str(lldp_port_subtype_values, "Unknown", subtype),
1542 subtype);
1543
1544 switch (subtype) {
1545 case LLDP_PORT_MAC_ADDR_SUBTYPE:
1546 if (tlv_len < 1+6) {
1547 goto trunc;
1548 }
1549 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1));
1550 break;
1551
1552 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */
1553 case LLDP_PORT_LOCAL_SUBTYPE:
1554 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE:
1555 case LLDP_PORT_INTF_ALIAS_SUBTYPE:
1556 case LLDP_PORT_PORT_COMP_SUBTYPE:
1557 nd_printjnp(ndo, tptr + 1, tlv_len - 1);
1558 break;
1559
1560 case LLDP_PORT_NETWORK_ADDR_SUBTYPE:
1561 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1562 if (network_addr == NULL) {
1563 goto trunc;
1564 }
1565 ND_PRINT("%s", network_addr);
1566 break;
1567
1568 default:
1569 hexdump = TRUE;
1570 break;
1571 }
1572 }
1573 break;
1574
1575 case LLDP_TTL_TLV:
1576 if (ndo->ndo_vflag) {
1577 if (tlv_len < 2) {
1578 goto trunc;
1579 }
1580 ND_PRINT(": TTL %us", GET_BE_U_2(tptr));
1581 }
1582 break;
1583
1584 case LLDP_PORT_DESCR_TLV:
1585 if (ndo->ndo_vflag) {
1586 ND_PRINT(": ");
1587 nd_printjnp(ndo, tptr, tlv_len);
1588 }
1589 break;
1590
1591 case LLDP_SYSTEM_NAME_TLV:
1592 /*
1593 * The system name is also print in non-verbose mode
1594 * similar to the CDP printer.
1595 */
1596 ND_PRINT(": ");
1597 nd_printjnp(ndo, tptr, tlv_len);
1598 break;
1599
1600 case LLDP_SYSTEM_DESCR_TLV:
1601 if (ndo->ndo_vflag) {
1602 ND_PRINT("\n\t ");
1603 nd_printjnp(ndo, tptr, tlv_len);
1604 }
1605 break;
1606
1607 case LLDP_SYSTEM_CAP_TLV:
1608 if (ndo->ndo_vflag) {
1609 /*
1610 * XXX - IEEE Std 802.1AB-2009 says the first octet
1611 * if a chassis ID subtype, with the system
1612 * capabilities and enabled capabilities following
1613 * it.
1614 */
1615 if (tlv_len < 4) {
1616 goto trunc;
1617 }
1618 cap = GET_BE_U_2(tptr);
1619 ena_cap = GET_BE_U_2(tptr + 2);
1620 ND_PRINT("\n\t System Capabilities [%s] (0x%04x)",
1621 bittok2str(lldp_cap_values, "none", cap), cap);
1622 ND_PRINT("\n\t Enabled Capabilities [%s] (0x%04x)",
1623 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap);
1624 }
1625 break;
1626
1627 case LLDP_MGMT_ADDR_TLV:
1628 if (ndo->ndo_vflag) {
1629 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) {
1630 goto trunc;
1631 }
1632 }
1633 break;
1634
1635 case LLDP_PRIVATE_TLV:
1636 if (ndo->ndo_vflag) {
1637 if (tlv_len < 3) {
1638 goto trunc;
1639 }
1640 oui = GET_BE_U_3(tptr);
1641 ND_PRINT(": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui);
1642
1643 switch (oui) {
1644 case OUI_IEEE_8021_PRIVATE:
1645 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len);
1646 break;
1647 case OUI_IEEE_8023_PRIVATE:
1648 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len);
1649 break;
1650 case OUI_IANA:
1651 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len);
1652 break;
1653 case OUI_TIA:
1654 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len);
1655 break;
1656 case OUI_DCBX:
1657 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len);
1658 break;
1659 default:
1660 hexdump = TRUE;
1661 break;
1662 }
1663 }
1664 break;
1665
1666 default:
1667 hexdump = TRUE;
1668 break;
1669 }
1670
1671 /* do we also want to see a hex dump ? */
1672 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1673 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1674 }
1675
1676 tlen -= tlv_len;
1677 tptr += tlv_len;
1678 }
1679 return;
1680 trunc:
1681 nd_print_trunc(ndo);
1682 }
1683