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 <sys/cdefs.h>
23 #ifndef lint
24 __RCSID("$NetBSD: print-lldp.c,v 1.11 2024/09/02 16:15:31 christos Exp $");
25 #endif
26
27 #include <config.h>
28
29 #include "netdissect-stdinc.h"
30
31 #include <stdio.h>
32
33 #include "netdissect.h"
34 #include "extract.h"
35 #include "addrtoname.h"
36 #include "af.h"
37 #include "oui.h"
38
39 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9)
40 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff)
41
42 /*
43 * TLV type codes
44 */
45 #define LLDP_END_TLV 0
46 #define LLDP_CHASSIS_ID_TLV 1
47 #define LLDP_PORT_ID_TLV 2
48 #define LLDP_TTL_TLV 3
49 #define LLDP_PORT_DESCR_TLV 4
50 #define LLDP_SYSTEM_NAME_TLV 5
51 #define LLDP_SYSTEM_DESCR_TLV 6
52 #define LLDP_SYSTEM_CAP_TLV 7
53 #define LLDP_MGMT_ADDR_TLV 8
54 #define LLDP_PRIVATE_TLV 127
55
56 static const struct tok lldp_tlv_values[] = {
57 { LLDP_END_TLV, "End" },
58 { LLDP_CHASSIS_ID_TLV, "Chassis ID" },
59 { LLDP_PORT_ID_TLV, "Port ID" },
60 { LLDP_TTL_TLV, "Time to Live" },
61 { LLDP_PORT_DESCR_TLV, "Port Description" },
62 { LLDP_SYSTEM_NAME_TLV, "System Name" },
63 { LLDP_SYSTEM_DESCR_TLV, "System Description" },
64 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" },
65 { LLDP_MGMT_ADDR_TLV, "Management Address" },
66 { LLDP_PRIVATE_TLV, "Organization specific" },
67 { 0, NULL}
68 };
69
70 /*
71 * Chassis ID subtypes
72 */
73 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1
74 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2
75 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3
76 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4
77 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5
78 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6
79 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7
80
81 static const struct tok lldp_chassis_subtype_values[] = {
82 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"},
83 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"},
84 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"},
85 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"},
86 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"},
87 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"},
88 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"},
89 { 0, NULL}
90 };
91
92 /*
93 * Port ID subtypes
94 */
95 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1
96 #define LLDP_PORT_PORT_COMP_SUBTYPE 2
97 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3
98 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4
99 #define LLDP_PORT_INTF_NAME_SUBTYPE 5
100 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6
101 #define LLDP_PORT_LOCAL_SUBTYPE 7
102
103 static const struct tok lldp_port_subtype_values[] = {
104 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"},
105 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"},
106 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"},
107 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"},
108 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"},
109 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"},
110 { LLDP_PORT_LOCAL_SUBTYPE, "Local"},
111 { 0, NULL}
112 };
113
114 /*
115 * System Capabilities
116 */
117 #define LLDP_CAP_OTHER (1 << 0)
118 #define LLDP_CAP_REPEATER (1 << 1)
119 #define LLDP_CAP_BRIDGE (1 << 2)
120 #define LLDP_CAP_WLAN_AP (1 << 3)
121 #define LLDP_CAP_ROUTER (1 << 4)
122 #define LLDP_CAP_PHONE (1 << 5)
123 #define LLDP_CAP_DOCSIS (1 << 6)
124 #define LLDP_CAP_STATION_ONLY (1 << 7)
125
126 static const struct tok lldp_cap_values[] = {
127 { LLDP_CAP_OTHER, "Other"},
128 { LLDP_CAP_REPEATER, "Repeater"},
129 { LLDP_CAP_BRIDGE, "Bridge"},
130 { LLDP_CAP_WLAN_AP, "WLAN AP"},
131 { LLDP_CAP_ROUTER, "Router"},
132 { LLDP_CAP_PHONE, "Telephone"},
133 { LLDP_CAP_DOCSIS, "Docsis"},
134 { LLDP_CAP_STATION_ONLY, "Station Only"},
135 { 0, NULL}
136 };
137
138 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1
139 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2
140 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3
141 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4
142 #define LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR 7
143 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8
144 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9
145 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10
146 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11
147 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12
148 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13
149 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14
150
151 static const struct tok lldp_8021_subtype_values[] = {
152 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"},
153 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"},
154 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"},
155 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"},
156 { LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR, "Link aggregation"},
157 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"},
158 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"},
159 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"},
160 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"},
161 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"},
162 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"},
163 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"},
164 { 0, NULL}
165 };
166
167 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1)
168 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2)
169
170 static const struct tok lldp_8021_port_protocol_id_values[] = {
171 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"},
172 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"},
173 { 0, NULL}
174 };
175
176 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1
177 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2
178 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3
179 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4
180
181 static const struct tok lldp_8023_subtype_values[] = {
182 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"},
183 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"},
184 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"},
185 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"},
186 { 0, NULL}
187 };
188
189 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1
190 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2
191 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3
192 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4
193 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5
194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6
195 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7
196 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8
197 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9
198 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10
199 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11
200
201 static const struct tok lldp_tia_subtype_values[] = {
202 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" },
203 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" },
204 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" },
205 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" },
206 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" },
207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" },
208 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" },
209 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" },
210 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" },
211 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" },
212 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" },
213 { 0, NULL}
214 };
215
216 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1
217 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2
218
219 static const struct tok lldp_tia_location_altitude_type_values[] = {
220 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"},
221 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"},
222 { 0, NULL}
223 };
224
225 /* ANSI/TIA-1057 - Annex B */
226 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1
227 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2
228 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3
229 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4
230 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5
231 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6
232
233 static const struct tok lldp_tia_location_lci_catype_values[] = {
234 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"},
235 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"},
236 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"},
237 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"},
238 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"},
239 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"},
240 { 0, NULL}
241 };
242
243 static const struct tok lldp_tia_location_lci_what_values[] = {
244 { 0, "location of DHCP server"},
245 { 1, "location of the network element believed to be closest to the client"},
246 { 2, "location of the client"},
247 { 0, NULL}
248 };
249
250 /*
251 * From RFC 3636 - dot3MauType
252 */
253 #define LLDP_MAU_TYPE_UNKNOWN 0
254 #define LLDP_MAU_TYPE_AUI 1
255 #define LLDP_MAU_TYPE_10BASE_5 2
256 #define LLDP_MAU_TYPE_FOIRL 3
257 #define LLDP_MAU_TYPE_10BASE_2 4
258 #define LLDP_MAU_TYPE_10BASE_T 5
259 #define LLDP_MAU_TYPE_10BASE_FP 6
260 #define LLDP_MAU_TYPE_10BASE_FB 7
261 #define LLDP_MAU_TYPE_10BASE_FL 8
262 #define LLDP_MAU_TYPE_10BROAD36 9
263 #define LLDP_MAU_TYPE_10BASE_T_HD 10
264 #define LLDP_MAU_TYPE_10BASE_T_FD 11
265 #define LLDP_MAU_TYPE_10BASE_FL_HD 12
266 #define LLDP_MAU_TYPE_10BASE_FL_FD 13
267 #define LLDP_MAU_TYPE_100BASE_T4 14
268 #define LLDP_MAU_TYPE_100BASE_TX_HD 15
269 #define LLDP_MAU_TYPE_100BASE_TX_FD 16
270 #define LLDP_MAU_TYPE_100BASE_FX_HD 17
271 #define LLDP_MAU_TYPE_100BASE_FX_FD 18
272 #define LLDP_MAU_TYPE_100BASE_T2_HD 19
273 #define LLDP_MAU_TYPE_100BASE_T2_FD 20
274 #define LLDP_MAU_TYPE_1000BASE_X_HD 21
275 #define LLDP_MAU_TYPE_1000BASE_X_FD 22
276 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23
277 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24
278 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25
279 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26
280 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27
281 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28
282 #define LLDP_MAU_TYPE_1000BASE_T_HD 29
283 #define LLDP_MAU_TYPE_1000BASE_T_FD 30
284 #define LLDP_MAU_TYPE_10GBASE_X 31
285 #define LLDP_MAU_TYPE_10GBASE_LX4 32
286 #define LLDP_MAU_TYPE_10GBASE_R 33
287 #define LLDP_MAU_TYPE_10GBASE_ER 34
288 #define LLDP_MAU_TYPE_10GBASE_LR 35
289 #define LLDP_MAU_TYPE_10GBASE_SR 36
290 #define LLDP_MAU_TYPE_10GBASE_W 37
291 #define LLDP_MAU_TYPE_10GBASE_EW 38
292 #define LLDP_MAU_TYPE_10GBASE_LW 39
293 #define LLDP_MAU_TYPE_10GBASE_SW 40
294
295 static const struct tok lldp_mau_types_values[] = {
296 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"},
297 { LLDP_MAU_TYPE_AUI, "AUI"},
298 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"},
299 { LLDP_MAU_TYPE_FOIRL, "FOIRL"},
300 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"},
301 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"},
302 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"},
303 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"},
304 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"},
305 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"},
306 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"},
307 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"},
308 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"},
309 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"},
310 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"},
311 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"},
312 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"},
313 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"},
314 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"},
315 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"},
316 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"},
317 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"},
318 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"},
319 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"},
320 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"},
321 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"},
322 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"},
323 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"},
324 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"},
325 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"},
326 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"},
327 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"},
328 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"},
329 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"},
330 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"},
331 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"},
332 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"},
333 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"},
334 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"},
335 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"},
336 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"},
337 { 0, NULL}
338 };
339
340 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0)
341 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1)
342
343 static const struct tok lldp_8023_autonegotiation_values[] = {
344 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"},
345 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"},
346 { 0, NULL}
347 };
348
349 #define LLDP_TIA_CAPABILITY_MED (1 << 0)
350 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1)
351 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2)
352 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3)
353 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4)
354 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5)
355
356 static const struct tok lldp_tia_capabilities_values[] = {
357 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"},
358 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"},
359 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"},
360 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"},
361 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"},
362 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"},
363 { 0, NULL}
364 };
365
366 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1
367 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2
368 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3
369 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4
370
371 static const struct tok lldp_tia_device_type_values[] = {
372 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"},
373 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"},
374 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"},
375 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"},
376 { 0, NULL}
377 };
378
379 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1
380 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2
381 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3
382 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4
383 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5
384 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6
385 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7
386 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8
387
388 static const struct tok lldp_tia_application_type_values[] = {
389 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"},
390 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"},
391 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"},
392 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"},
393 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"},
394 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"},
395 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"},
396 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"},
397 { 0, NULL}
398 };
399
400 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5)
401 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6)
402 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7)
403
404 static const struct tok lldp_tia_network_policy_bits_values[] = {
405 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"},
406 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"},
407 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"},
408 { 0, NULL}
409 };
410
411 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1)
412 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6)
413 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f)
414
415 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1
416 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2
417 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3
418
419 static const struct tok lldp_tia_location_data_format_values[] = {
420 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"},
421 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"},
422 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"},
423 { 0, NULL}
424 };
425
426 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1
427 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2
428 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3
429
430 static const struct tok lldp_tia_location_datum_type_values[] = {
431 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"},
432 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"},
433 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"},
434 { 0, NULL}
435 };
436
437 #define LLDP_TIA_POWER_SOURCE_PSE 1
438 #define LLDP_TIA_POWER_SOURCE_LOCAL 2
439 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3
440
441 static const struct tok lldp_tia_power_source_values[] = {
442 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"},
443 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"},
444 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"},
445 { 0, NULL}
446 };
447
448 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1
449 #define LLDP_TIA_POWER_PRIORITY_HIGH 2
450 #define LLDP_TIA_POWER_PRIORITY_LOW 3
451
452 static const struct tok lldp_tia_power_priority_values[] = {
453 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"},
454 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"},
455 { LLDP_TIA_POWER_PRIORITY_LOW, "low"},
456 { 0, NULL}
457 };
458
459 #define LLDP_TIA_POWER_VAL_MAX 1024
460
461 static const struct tok lldp_tia_inventory_values[] = {
462 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" },
463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" },
464 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" },
465 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" },
466 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" },
467 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" },
468 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" },
469 { 0, NULL}
470 };
471
472 /*
473 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits
474 */
475 #define LLDP_MAU_PMD_OTHER (1 << 15)
476 #define LLDP_MAU_PMD_10BASE_T (1 << 14)
477 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13)
478 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12)
479 #define LLDP_MAU_PMD_100BASE_TX (1 << 11)
480 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10)
481 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9)
482 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8)
483 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7)
484 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6)
485 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5)
486 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4)
487 #define LLDP_MAU_PMD_1000BASE_X (1 << 3)
488 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2)
489 #define LLDP_MAU_PMD_1000BASE_T (1 << 1)
490 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0)
491
492 static const struct tok lldp_pmd_capability_values[] = {
493 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"},
494 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"},
495 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"},
496 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"},
497 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"},
498 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"},
499 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"},
500 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"},
501 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"},
502 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"},
503 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"},
504 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"},
505 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"},
506 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"},
507 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"},
508 { 0, NULL}
509 };
510
511 #define LLDP_MDI_PORT_CLASS (1 << 0)
512 #define LLDP_MDI_POWER_SUPPORT (1 << 1)
513 #define LLDP_MDI_POWER_STATE (1 << 2)
514 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3)
515
516 static const struct tok lldp_mdi_values[] = {
517 { LLDP_MDI_PORT_CLASS, "PSE"},
518 { LLDP_MDI_POWER_SUPPORT, "supported"},
519 { LLDP_MDI_POWER_STATE, "enabled"},
520 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"},
521 { 0, NULL}
522 };
523
524 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1
525 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2
526
527 static const struct tok lldp_mdi_power_pairs_values[] = {
528 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"},
529 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"},
530 { 0, NULL}
531 };
532
533 #define LLDP_MDI_POWER_CLASS0 1
534 #define LLDP_MDI_POWER_CLASS1 2
535 #define LLDP_MDI_POWER_CLASS2 3
536 #define LLDP_MDI_POWER_CLASS3 4
537 #define LLDP_MDI_POWER_CLASS4 5
538
539 static const struct tok lldp_mdi_power_class_values[] = {
540 { LLDP_MDI_POWER_CLASS0, "class0"},
541 { LLDP_MDI_POWER_CLASS1, "class1"},
542 { LLDP_MDI_POWER_CLASS2, "class2"},
543 { LLDP_MDI_POWER_CLASS3, "class3"},
544 { LLDP_MDI_POWER_CLASS4, "class4"},
545 { 0, NULL}
546 };
547
548 #define LLDP_AGGREGATION_CAPABILITY (1 << 0)
549 #define LLDP_AGGREGATION_STATUS (1 << 1)
550
551 static const struct tok lldp_aggregation_values[] = {
552 { LLDP_AGGREGATION_CAPABILITY, "supported"},
553 { LLDP_AGGREGATION_STATUS, "enabled"},
554 { 0, NULL}
555 };
556
557 /*
558 * DCBX protocol subtypes.
559 */
560 #define LLDP_DCBX_SUBTYPE_1 1
561 #define LLDP_DCBX_SUBTYPE_2 2
562
563 static const struct tok lldp_dcbx_subtype_values[] = {
564 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" },
565 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" },
566 { 0, NULL}
567 };
568
569 #define LLDP_DCBX_CONTROL_TLV 1
570 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2
571 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3
572 #define LLDP_DCBX_APPLICATION_TLV 4
573
574 /*
575 * Interface numbering subtypes.
576 */
577 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2
578 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3
579
580 static const struct tok lldp_intf_numb_subtype_values[] = {
581 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" },
582 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" },
583 { 0, NULL}
584 };
585
586 #define LLDP_INTF_NUM_LEN 5
587
588 #define LLDP_EVB_MODE_NOT_SUPPORTED 0
589 #define LLDP_EVB_MODE_EVB_BRIDGE 1
590 #define LLDP_EVB_MODE_EVB_STATION 2
591 #define LLDP_EVB_MODE_RESERVED 3
592
593 static const struct tok lldp_evb_mode_values[]={
594 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"},
595 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"},
596 { LLDP_EVB_MODE_EVB_STATION, "EVB Station"},
597 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"},
598 { 0, NULL},
599 };
600
601 #define NO_OF_BITS 8
602 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6
603 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25
604 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25
605 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6
606 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5
607 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9
608 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8
609
610 #define LLDP_IANA_SUBTYPE_MUDURL 1
611
612 static const struct tok lldp_iana_subtype_values[] = {
613 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" },
614 { 0, NULL }
615 };
616
617
618 static void
print_ets_priority_assignment_table(netdissect_options * ndo,const u_char * ptr)619 print_ets_priority_assignment_table(netdissect_options *ndo,
620 const u_char *ptr)
621 {
622 ND_PRINT("\n\t Priority Assignment Table");
623 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
624 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
625 GET_U_1(ptr) >> 4, GET_U_1(ptr) & 0x0f,
626 GET_U_1(ptr + 1) >> 4, GET_U_1(ptr + 1) & 0x0f,
627 GET_U_1(ptr + 2) >> 4, GET_U_1(ptr + 2) & 0x0f,
628 GET_U_1(ptr + 3) >> 4, GET_U_1(ptr + 3) & 0x0f);
629 }
630
631 static void
print_tc_bandwidth_table(netdissect_options * ndo,const u_char * ptr)632 print_tc_bandwidth_table(netdissect_options *ndo,
633 const u_char *ptr)
634 {
635 ND_PRINT("\n\t TC Bandwidth Table");
636 ND_PRINT("\n\t TC%% : 0 1 2 3 4 5 6 7");
637 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
638 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2),
639 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5),
640 GET_U_1(ptr + 6), GET_U_1(ptr + 7));
641 }
642
643 static void
print_tsa_assignment_table(netdissect_options * ndo,const u_char * ptr)644 print_tsa_assignment_table(netdissect_options *ndo,
645 const u_char *ptr)
646 {
647 ND_PRINT("\n\t TSA Assignment Table");
648 ND_PRINT("\n\t Traffic Class: 0 1 2 3 4 5 6 7");
649 ND_PRINT("\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
650 GET_U_1(ptr), GET_U_1(ptr + 1), GET_U_1(ptr + 2),
651 GET_U_1(ptr + 3), GET_U_1(ptr + 4), GET_U_1(ptr + 5),
652 GET_U_1(ptr + 6), GET_U_1(ptr + 7));
653 }
654
655 /*
656 * Print IEEE 802.1 private extensions. (802.1AB annex E)
657 */
658 static int
lldp_private_8021_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)659 lldp_private_8021_print(netdissect_options *ndo,
660 const u_char *tptr, u_int tlv_len)
661 {
662 int hexdump = FALSE;
663 u_int subtype;
664 u_int sublen;
665 u_int tval;
666 u_int i;
667
668 if (tlv_len < 4) {
669 return hexdump;
670 }
671 subtype = GET_U_1(tptr + 3);
672
673 ND_PRINT("\n\t %s Subtype (%u)",
674 tok2str(lldp_8021_subtype_values, "unknown", subtype),
675 subtype);
676
677 switch (subtype) {
678 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID:
679 if (tlv_len < 6) {
680 return hexdump;
681 }
682 ND_PRINT("\n\t port vlan id (PVID): %u",
683 GET_BE_U_2(tptr + 4));
684 break;
685 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID:
686 if (tlv_len < 7) {
687 return hexdump;
688 }
689 ND_PRINT("\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)",
690 GET_BE_U_2(tptr + 5),
691 bittok2str(lldp_8021_port_protocol_id_values, "none", GET_U_1(tptr + 4)),
692 GET_U_1(tptr + 4));
693 break;
694 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME:
695 if (tlv_len < 6) {
696 return hexdump;
697 }
698 ND_PRINT("\n\t vlan id (VID): %u", GET_BE_U_2(tptr + 4));
699 if (tlv_len < 7) {
700 return hexdump;
701 }
702 sublen = GET_U_1(tptr + 6);
703 if (tlv_len < 7+sublen) {
704 return hexdump;
705 }
706 ND_PRINT("\n\t vlan name: ");
707 nd_printjnp(ndo, tptr + 7, sublen);
708 break;
709 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY:
710 if (tlv_len < 5) {
711 return hexdump;
712 }
713 sublen = GET_U_1(tptr + 4);
714 if (tlv_len < 5+sublen) {
715 return hexdump;
716 }
717 ND_PRINT("\n\t protocol identity: ");
718 nd_printjnp(ndo, tptr + 5, sublen);
719 break;
720
721 case LLDP_PRIVATE_8021_SUBTYPE_LINKAGGR:
722 if (tlv_len < 9) {
723 return hexdump;
724 }
725 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u",
726 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))),
727 GET_BE_U_4(tptr + 5));
728 break;
729
730 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION:
731 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){
732 return hexdump;
733 }
734 tval=GET_U_1(tptr + 4);
735 ND_PRINT("\n\t Pre-Priority CNPV Indicator");
736 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
737 ND_PRINT("\n\t Value : ");
738 for(i=0;i<NO_OF_BITS;i++)
739 ND_PRINT("%-2d ", (tval >> i) & 0x01);
740 tval=GET_U_1(tptr + 5);
741 ND_PRINT("\n\t Pre-Priority Ready Indicator");
742 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
743 ND_PRINT("\n\t Value : ");
744 for(i=0;i<NO_OF_BITS;i++)
745 ND_PRINT("%-2d ", (tval >> i) & 0x01);
746 break;
747
748 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION:
749 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) {
750 return hexdump;
751 }
752 tval=GET_U_1(tptr + 4);
753 ND_PRINT("\n\t Willing:%u, CBS:%u, RES:%u, Max TCs:%u",
754 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07);
755
756 /*Print Priority Assignment Table*/
757 print_ets_priority_assignment_table(ndo, tptr + 5);
758
759 /*Print TC Bandwidth Table*/
760 print_tc_bandwidth_table(ndo, tptr + 9);
761
762 /* Print TSA Assignment Table */
763 print_tsa_assignment_table(ndo, tptr + 17);
764
765 break;
766
767 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION:
768 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) {
769 return hexdump;
770 }
771 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4));
772 /*Print Priority Assignment Table */
773 print_ets_priority_assignment_table(ndo, tptr + 5);
774 /*Print TC Bandwidth Table */
775 print_tc_bandwidth_table(ndo, tptr + 9);
776 /* Print TSA Assignment Table */
777 print_tsa_assignment_table(ndo, tptr + 17);
778 break;
779
780 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION:
781 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) {
782 return hexdump;
783 }
784 tval=GET_U_1(tptr + 4);
785 ND_PRINT("\n\t Willing: %u, MBC: %u, RES: %u, PFC cap:%u ",
786 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f));
787 ND_PRINT("\n\t PFC Enable");
788 tval=GET_U_1(tptr + 5);
789 ND_PRINT("\n\t Priority : 0 1 2 3 4 5 6 7");
790 ND_PRINT("\n\t Value : ");
791 for(i=0;i<NO_OF_BITS;i++)
792 ND_PRINT("%-2d ", (tval >> i) & 0x01);
793 break;
794
795 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY:
796 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) {
797 return hexdump;
798 }
799 ND_PRINT("\n\t RES: %u", GET_U_1(tptr + 4));
800 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){
801 return hexdump;
802 }
803 /* Length of Application Priority Table */
804 sublen=tlv_len-5;
805 if(sublen%3!=0){
806 return hexdump;
807 }
808 i=0;
809 ND_PRINT("\n\t Application Priority Table");
810 while(i<sublen) {
811 tval=GET_U_1(tptr + i + 5);
812 ND_PRINT("\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u",
813 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07),
814 GET_BE_U_2(tptr + i + 6));
815 i=i+3;
816 }
817 break;
818 case LLDP_PRIVATE_8021_SUBTYPE_EVB:
819 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){
820 return hexdump;
821 }
822 ND_PRINT("\n\t EVB Bridge Status");
823 tval=GET_U_1(tptr + 4);
824 ND_PRINT("\n\t RES: %u, BGID: %u, RRCAP: %u, RRCTR: %u",
825 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01);
826 ND_PRINT("\n\t EVB Station Status");
827 tval=GET_U_1(tptr + 5);
828 ND_PRINT("\n\t RES: %u, SGID: %u, RRREQ: %u,RRSTAT: %u",
829 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03);
830 tval=GET_U_1(tptr + 6);
831 ND_PRINT("\n\t R: %u, RTE: %u, ",tval >> 5, tval & 0x1f);
832 tval=GET_U_1(tptr + 7);
833 ND_PRINT("EVB Mode: %s [%u]",
834 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6);
835 ND_PRINT("\n\t ROL: %u, RWD: %u, ", (tval >> 5) & 0x01, tval & 0x1f);
836 tval=GET_U_1(tptr + 8);
837 ND_PRINT("RES: %u, ROL: %u, RKA: %u", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f);
838 break;
839
840 case LLDP_PRIVATE_8021_SUBTYPE_CDCP:
841 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){
842 return hexdump;
843 }
844 tval=GET_U_1(tptr + 4);
845 ND_PRINT("\n\t Role: %u, RES: %u, Scomp: %u ",
846 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01);
847 ND_PRINT("ChnCap: %u", GET_BE_U_2(tptr + 6) & 0x0fff);
848 sublen=tlv_len-8;
849 if(sublen%3!=0) {
850 return hexdump;
851 }
852 i=0;
853 while(i<sublen) {
854 tval=GET_BE_U_3(tptr + i + 8);
855 ND_PRINT("\n\t SCID: %u, SVID: %u",
856 tval >> 12, tval & 0x000fff);
857 i=i+3;
858 }
859 break;
860
861 default:
862 hexdump = TRUE;
863 break;
864 }
865
866 return hexdump;
867 }
868
869 /*
870 * Print IEEE 802.3 private extensions. (802.3bc)
871 */
872 static int
lldp_private_8023_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)873 lldp_private_8023_print(netdissect_options *ndo,
874 const u_char *tptr, u_int tlv_len)
875 {
876 int hexdump = FALSE;
877 u_int subtype;
878
879 if (tlv_len < 4) {
880 return hexdump;
881 }
882 subtype = GET_U_1(tptr + 3);
883
884 ND_PRINT("\n\t %s Subtype (%u)",
885 tok2str(lldp_8023_subtype_values, "unknown", subtype),
886 subtype);
887
888 switch (subtype) {
889 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY:
890 if (tlv_len < 9) {
891 return hexdump;
892 }
893 ND_PRINT("\n\t autonegotiation [%s] (0x%02x)",
894 bittok2str(lldp_8023_autonegotiation_values, "none", GET_U_1(tptr + 4)),
895 GET_U_1(tptr + 4));
896 ND_PRINT("\n\t PMD autoneg capability [%s] (0x%04x)",
897 bittok2str(lldp_pmd_capability_values,"unknown", GET_BE_U_2(tptr + 5)),
898 GET_BE_U_2(tptr + 5));
899 ND_PRINT("\n\t MAU type %s (0x%04x)",
900 tok2str(lldp_mau_types_values, "unknown", GET_BE_U_2(tptr + 7)),
901 GET_BE_U_2(tptr + 7));
902 break;
903
904 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER:
905 if (tlv_len < 7) {
906 return hexdump;
907 }
908 ND_PRINT("\n\t MDI power support [%s], power pair %s, power class %s",
909 bittok2str(lldp_mdi_values, "none", GET_U_1((tptr + 4))),
910 tok2str(lldp_mdi_power_pairs_values, "unknown", GET_U_1((tptr + 5))),
911 tok2str(lldp_mdi_power_class_values, "unknown", GET_U_1((tptr + 6))));
912 break;
913
914 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR:
915 if (tlv_len < 9) {
916 return hexdump;
917 }
918 ND_PRINT("\n\t aggregation status [%s], aggregation port ID %u",
919 bittok2str(lldp_aggregation_values, "none", GET_U_1((tptr + 4))),
920 GET_BE_U_4(tptr + 5));
921 break;
922
923 case LLDP_PRIVATE_8023_SUBTYPE_MTU:
924 if (tlv_len < 6) {
925 return hexdump;
926 }
927 ND_PRINT("\n\t MTU size %u", GET_BE_U_2(tptr + 4));
928 break;
929
930 default:
931 hexdump = TRUE;
932 break;
933 }
934
935 return hexdump;
936 }
937
938 /*
939 * Extract 34bits of latitude/longitude coordinates.
940 */
941 static uint64_t
lldp_extract_latlon(netdissect_options * ndo,const u_char * tptr)942 lldp_extract_latlon(netdissect_options *ndo, const u_char *tptr)
943 {
944 uint64_t latlon;
945
946 latlon = GET_U_1(tptr) & 0x3;
947 latlon = (latlon << 32) | GET_BE_U_4(tptr + 1);
948
949 return latlon;
950 }
951
952 /* objects defined in IANA subtype 00 00 5e
953 * (right now there is only one)
954 */
955
956
957 static int
lldp_private_iana_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)958 lldp_private_iana_print(netdissect_options *ndo,
959 const u_char *tptr, u_int tlv_len)
960 {
961 int hexdump = FALSE;
962 u_int subtype;
963
964 if (tlv_len < 8) {
965 return hexdump;
966 }
967 subtype = GET_U_1(tptr + 3);
968
969 ND_PRINT("\n\t %s Subtype (%u)",
970 tok2str(lldp_iana_subtype_values, "unknown", subtype),
971 subtype);
972
973 switch (subtype) {
974 case LLDP_IANA_SUBTYPE_MUDURL:
975 ND_PRINT("\n\t MUD-URL=");
976 (void)nd_printn(ndo, tptr+4, tlv_len-4, NULL);
977 break;
978 default:
979 hexdump=TRUE;
980 }
981
982 return hexdump;
983 }
984
985
986
987 /*
988 * Print private TIA extensions.
989 */
990 static int
lldp_private_tia_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)991 lldp_private_tia_print(netdissect_options *ndo,
992 const u_char *tptr, u_int tlv_len)
993 {
994 int hexdump = FALSE;
995 u_int subtype;
996 uint8_t location_format;
997 uint16_t power_val;
998 u_int lci_len;
999 uint8_t ca_type, ca_len;
1000
1001 if (tlv_len < 4) {
1002 return hexdump;
1003 }
1004 subtype = GET_U_1(tptr + 3);
1005
1006 ND_PRINT("\n\t %s Subtype (%u)",
1007 tok2str(lldp_tia_subtype_values, "unknown", subtype),
1008 subtype);
1009
1010 switch (subtype) {
1011 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES:
1012 if (tlv_len < 7) {
1013 return hexdump;
1014 }
1015 ND_PRINT("\n\t Media capabilities [%s] (0x%04x)",
1016 bittok2str(lldp_tia_capabilities_values, "none",
1017 GET_BE_U_2(tptr + 4)), GET_BE_U_2(tptr + 4));
1018 ND_PRINT("\n\t Device type [%s] (0x%02x)",
1019 tok2str(lldp_tia_device_type_values, "unknown", GET_U_1(tptr + 6)),
1020 GET_U_1(tptr + 6));
1021 break;
1022
1023 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY:
1024 if (tlv_len < 8) {
1025 return hexdump;
1026 }
1027 ND_PRINT("\n\t Application type [%s] (0x%02x)",
1028 tok2str(lldp_tia_application_type_values, "none", GET_U_1(tptr + 4)),
1029 GET_U_1(tptr + 4));
1030 ND_PRINT(", Flags [%s]", bittok2str(
1031 lldp_tia_network_policy_bits_values, "none", GET_U_1((tptr + 5))));
1032 ND_PRINT("\n\t Vlan id %u",
1033 LLDP_EXTRACT_NETWORK_POLICY_VLAN(GET_BE_U_2(tptr + 5)));
1034 ND_PRINT(", L2 priority %u",
1035 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(GET_BE_U_2(tptr + 6)));
1036 ND_PRINT(", DSCP value %u",
1037 LLDP_EXTRACT_NETWORK_POLICY_DSCP(GET_BE_U_2(tptr + 6)));
1038 break;
1039
1040 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID:
1041 if (tlv_len < 5) {
1042 return hexdump;
1043 }
1044 location_format = GET_U_1(tptr + 4);
1045 ND_PRINT("\n\t Location data format %s (0x%02x)",
1046 tok2str(lldp_tia_location_data_format_values, "unknown", location_format),
1047 location_format);
1048
1049 switch (location_format) {
1050 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED:
1051 if (tlv_len < 21) {
1052 return hexdump;
1053 }
1054 ND_PRINT("\n\t Latitude resolution %u, latitude value %" PRIu64,
1055 (GET_U_1(tptr + 5) >> 2),
1056 lldp_extract_latlon(ndo, tptr + 5));
1057 ND_PRINT("\n\t Longitude resolution %u, longitude value %" PRIu64,
1058 (GET_U_1(tptr + 10) >> 2),
1059 lldp_extract_latlon(ndo, tptr + 10));
1060 ND_PRINT("\n\t Altitude type %s (%u)",
1061 tok2str(lldp_tia_location_altitude_type_values, "unknown",GET_U_1(tptr + 15) >> 4),
1062 (GET_U_1(tptr + 15) >> 4));
1063 ND_PRINT("\n\t Altitude resolution %u, altitude value 0x%x",
1064 (GET_BE_U_2(tptr + 15)>>6)&0x3f,
1065 (GET_BE_U_4(tptr + 16) & 0x3fffffff));
1066 ND_PRINT("\n\t Datum %s (0x%02x)",
1067 tok2str(lldp_tia_location_datum_type_values, "unknown", GET_U_1(tptr + 20)),
1068 GET_U_1(tptr + 20));
1069 break;
1070
1071 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS:
1072 if (tlv_len < 6) {
1073 return hexdump;
1074 }
1075 lci_len = GET_U_1(tptr + 5);
1076 if (lci_len < 3) {
1077 return hexdump;
1078 }
1079 if (tlv_len < 7+lci_len) {
1080 return hexdump;
1081 }
1082 ND_PRINT("\n\t LCI length %u, LCI what %s (0x%02x), Country-code ",
1083 lci_len,
1084 tok2str(lldp_tia_location_lci_what_values, "unknown", GET_U_1(tptr + 6)),
1085 GET_U_1(tptr + 6));
1086
1087 /* Country code */
1088 nd_printjnp(ndo, tptr + 7, 2);
1089
1090 lci_len = lci_len-3;
1091 tptr = tptr + 9;
1092
1093 /* Decode each civic address element */
1094 while (lci_len > 0) {
1095 if (lci_len < 2) {
1096 return hexdump;
1097 }
1098 ca_type = GET_U_1(tptr);
1099 ca_len = GET_U_1(tptr + 1);
1100
1101 tptr += 2;
1102 lci_len -= 2;
1103
1104 ND_PRINT("\n\t CA type '%s' (%u), length %u: ",
1105 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type),
1106 ca_type, ca_len);
1107
1108 /* basic sanity check */
1109 if ( ca_type == 0 || ca_len == 0) {
1110 return hexdump;
1111 }
1112 if (lci_len < ca_len) {
1113 return hexdump;
1114 }
1115
1116 nd_printjnp(ndo, tptr, ca_len);
1117 tptr += ca_len;
1118 lci_len -= ca_len;
1119 }
1120 break;
1121
1122 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN:
1123 ND_PRINT("\n\t ECS ELIN id ");
1124 nd_printjnp(ndo, tptr + 5, tlv_len - 5);
1125 break;
1126
1127 default:
1128 ND_PRINT("\n\t Location ID ");
1129 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5);
1130 }
1131 break;
1132
1133 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI:
1134 if (tlv_len < 7) {
1135 return hexdump;
1136 }
1137 ND_PRINT("\n\t Power type [%s]",
1138 (GET_U_1(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device");
1139 ND_PRINT(", Power source [%s]",
1140 tok2str(lldp_tia_power_source_values, "none", (GET_U_1((tptr + 4)) & 0x30) >> 4));
1141 ND_PRINT("\n\t Power priority [%s] (0x%02x)",
1142 tok2str(lldp_tia_power_priority_values, "none", GET_U_1(tptr + 4) & 0x0f),
1143 GET_U_1(tptr + 4) & 0x0f);
1144 power_val = GET_BE_U_2(tptr + 5);
1145 if (power_val < LLDP_TIA_POWER_VAL_MAX) {
1146 ND_PRINT(", Power %.1f Watts", ((float)power_val) / 10);
1147 } else {
1148 ND_PRINT(", Power %u (Reserved)", power_val);
1149 }
1150 break;
1151
1152 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV:
1153 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV:
1154 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV:
1155 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER:
1156 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME:
1157 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME:
1158 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID:
1159 ND_PRINT("\n\t %s ",
1160 tok2str(lldp_tia_inventory_values, "unknown", subtype));
1161 nd_printjnp(ndo, tptr + 4, tlv_len - 4);
1162 break;
1163
1164 default:
1165 hexdump = TRUE;
1166 break;
1167 }
1168
1169 return hexdump;
1170 }
1171
1172 /*
1173 * Print DCBX Protocol fields (V 1.01).
1174 */
1175 static int
lldp_private_dcbx_print(netdissect_options * ndo,const u_char * pptr,u_int len)1176 lldp_private_dcbx_print(netdissect_options *ndo,
1177 const u_char *pptr, u_int len)
1178 {
1179 int hexdump = FALSE;
1180 u_int subtype;
1181 uint16_t tval;
1182 uint16_t tlv;
1183 uint32_t i, pgval, uval;
1184 u_int tlen, tlv_type;
1185 uint16_t tlv_len;
1186 const u_char *tptr, *mptr;
1187
1188 if (len < 4) {
1189 return hexdump;
1190 }
1191 subtype = GET_U_1(pptr + 3);
1192
1193 ND_PRINT("\n\t %s Subtype (%u)",
1194 tok2str(lldp_dcbx_subtype_values, "unknown", subtype),
1195 subtype);
1196
1197 /* by passing old version */
1198 if (subtype == LLDP_DCBX_SUBTYPE_1)
1199 return TRUE;
1200
1201 tptr = pptr + 4;
1202 tlen = len - 4;
1203
1204 while (tlen >= sizeof(tlv)) {
1205
1206 ND_TCHECK_LEN(tptr, sizeof(tlv));
1207
1208 tlv = GET_BE_U_2(tptr);
1209
1210 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1211 tlv_len = LLDP_EXTRACT_LEN(tlv);
1212 hexdump = FALSE;
1213
1214 tlen -= sizeof(tlv);
1215 tptr += sizeof(tlv);
1216
1217 /* loop check */
1218 if (!tlv_type || !tlv_len) {
1219 break;
1220 }
1221
1222 ND_TCHECK_LEN(tptr, tlv_len);
1223 if (tlen < tlv_len) {
1224 goto trunc;
1225 }
1226
1227 /* decode every tlv */
1228 switch (tlv_type) {
1229 case LLDP_DCBX_CONTROL_TLV:
1230 if (tlv_len < 10) {
1231 goto trunc;
1232 }
1233 ND_PRINT("\n\t Control - Protocol Control (type 0x%x, length %u)",
1234 LLDP_DCBX_CONTROL_TLV, tlv_len);
1235 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1236 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1237 ND_PRINT("\n\t Sequence Number: %u", GET_BE_U_4(tptr + 2));
1238 ND_PRINT("\n\t Acknowledgement Number: %u",
1239 GET_BE_U_4(tptr + 6));
1240 break;
1241 case LLDP_DCBX_PRIORITY_GROUPS_TLV:
1242 if (tlv_len < 17) {
1243 goto trunc;
1244 }
1245 ND_PRINT("\n\t Feature - Priority Group (type 0x%x, length %u)",
1246 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len);
1247 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1248 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1249 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2));
1250 tval = GET_U_1(tptr + 2);
1251 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u",
1252 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1253 (tval & 0x20) ? 1 : 0);
1254 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3));
1255 ND_PRINT("\n\t Priority Allocation");
1256
1257 /*
1258 * Array of 8 4-bit priority group ID values; we fetch all
1259 * 32 bits and extract each nibble.
1260 */
1261 pgval = GET_BE_U_4(tptr + 4);
1262 for (i = 0; i <= 7; i++) {
1263 ND_PRINT("\n\t PgId_%u: %u",
1264 i, (pgval >> (28 - 4 * i)) & 0xF);
1265 }
1266 ND_PRINT("\n\t Priority Group Allocation");
1267 for (i = 0; i <= 7; i++)
1268 ND_PRINT("\n\t Pg percentage[%u]: %u", i,
1269 GET_U_1(tptr + 8 + i));
1270 ND_PRINT("\n\t NumTCsSupported: %u", GET_U_1(tptr + 8 + 8));
1271 break;
1272 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV:
1273 if (tlv_len < 6) {
1274 goto trunc;
1275 }
1276 ND_PRINT("\n\t Feature - Priority Flow Control");
1277 ND_PRINT(" (type 0x%x, length %u)",
1278 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len);
1279 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1280 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1281 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2));
1282 tval = GET_U_1(tptr + 2);
1283 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u",
1284 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1285 (tval & 0x20) ? 1 : 0);
1286 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3));
1287 tval = GET_U_1(tptr + 4);
1288 ND_PRINT("\n\t PFC Config (0x%02X)", GET_U_1(tptr + 4));
1289 for (i = 0; i <= 7; i++)
1290 ND_PRINT("\n\t Priority Bit %u: %s",
1291 i, (tval & (1 << i)) ? "Enabled" : "Disabled");
1292 ND_PRINT("\n\t NumTCPFCSupported: %u", GET_U_1(tptr + 5));
1293 break;
1294 case LLDP_DCBX_APPLICATION_TLV:
1295 if (tlv_len < 4) {
1296 goto trunc;
1297 }
1298 ND_PRINT("\n\t Feature - Application (type 0x%x, length %u)",
1299 LLDP_DCBX_APPLICATION_TLV, tlv_len);
1300 ND_PRINT("\n\t Oper_Version: %u", GET_U_1(tptr));
1301 ND_PRINT("\n\t Max_Version: %u", GET_U_1(tptr + 1));
1302 ND_PRINT("\n\t Info block(0x%02X): ", GET_U_1(tptr + 2));
1303 tval = GET_U_1(tptr + 2);
1304 ND_PRINT("Enable bit: %u, Willing bit: %u, Error Bit: %u",
1305 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1306 (tval & 0x20) ? 1 : 0);
1307 ND_PRINT("\n\t SubType: %u", GET_U_1(tptr + 3));
1308 tval = tlv_len - 4;
1309 mptr = tptr + 4;
1310 while (tval >= 6) {
1311 ND_PRINT("\n\t Application Value");
1312 ND_PRINT("\n\t Application Protocol ID: 0x%04x",
1313 GET_BE_U_2(mptr));
1314 uval = GET_BE_U_3(mptr + 2);
1315 ND_PRINT("\n\t SF (0x%x) Application Protocol ID is %s",
1316 (uval >> 22),
1317 (uval >> 22) ? "Socket Number" : "L2 EtherType");
1318 ND_PRINT("\n\t OUI: 0x%06x", uval & 0x3fffff);
1319 ND_PRINT("\n\t User Priority Map: 0x%02x",
1320 GET_U_1(mptr + 5));
1321 tval = tval - 6;
1322 mptr = mptr + 6;
1323 }
1324 break;
1325 default:
1326 hexdump = TRUE;
1327 break;
1328 }
1329
1330 /* do we also want to see a hex dump ? */
1331 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1332 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1333 }
1334
1335 tlen -= tlv_len;
1336 tptr += tlv_len;
1337 }
1338
1339 trunc:
1340 return hexdump;
1341 }
1342
1343 static char *
lldp_network_addr_print(netdissect_options * ndo,const u_char * tptr,u_int len)1344 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len)
1345 {
1346 uint8_t af;
1347 static char buf[BUFSIZE];
1348 const char * (*pfunc)(netdissect_options *, const u_char *);
1349
1350 if (len < 1)
1351 return NULL;
1352 len--;
1353 af = GET_U_1(tptr);
1354 switch (af) {
1355 case AFNUM_INET:
1356 if (len < sizeof(nd_ipv4))
1357 return NULL;
1358 pfunc = ipaddr_string;
1359 break;
1360 case AFNUM_INET6:
1361 if (len < sizeof(nd_ipv6))
1362 return NULL;
1363 pfunc = ip6addr_string;
1364 break;
1365 case AFNUM_802:
1366 if (len < MAC_ADDR_LEN)
1367 return NULL;
1368 pfunc = etheraddr_string;
1369 break;
1370 default:
1371 pfunc = NULL;
1372 break;
1373 }
1374
1375 if (!pfunc) {
1376 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !",
1377 tok2str(af_values, "Unknown", af), af);
1378 } else {
1379 snprintf(buf, sizeof(buf), "AFI %s (%u): %s",
1380 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1));
1381 }
1382
1383 return buf;
1384 }
1385
1386 static int
lldp_mgmt_addr_tlv_print(netdissect_options * ndo,const u_char * pptr,u_int len)1387 lldp_mgmt_addr_tlv_print(netdissect_options *ndo,
1388 const u_char *pptr, u_int len)
1389 {
1390 uint8_t mgmt_addr_len, intf_num_subtype, oid_len;
1391 const u_char *tptr;
1392 u_int tlen;
1393 char *mgmt_addr;
1394
1395 tlen = len;
1396 tptr = pptr;
1397
1398 if (tlen < 1) {
1399 return 0;
1400 }
1401 mgmt_addr_len = GET_U_1(tptr);
1402 tptr++;
1403 tlen--;
1404
1405 if (tlen < mgmt_addr_len) {
1406 return 0;
1407 }
1408
1409 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len);
1410 if (mgmt_addr == NULL) {
1411 return 0;
1412 }
1413 ND_PRINT("\n\t Management Address length %u, %s",
1414 mgmt_addr_len, mgmt_addr);
1415 tptr += mgmt_addr_len;
1416 tlen -= mgmt_addr_len;
1417
1418 if (tlen < LLDP_INTF_NUM_LEN) {
1419 return 0;
1420 }
1421
1422 intf_num_subtype = GET_U_1(tptr);
1423 ND_PRINT("\n\t %s Interface Numbering (%u): %u",
1424 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype),
1425 intf_num_subtype,
1426 GET_BE_U_4(tptr + 1));
1427
1428 tptr += LLDP_INTF_NUM_LEN;
1429 tlen -= LLDP_INTF_NUM_LEN;
1430
1431 /*
1432 * The OID is optional.
1433 */
1434 if (tlen) {
1435 oid_len = GET_U_1(tptr);
1436
1437 if (tlen < 1U + oid_len) {
1438 return 0;
1439 }
1440 if (oid_len) {
1441 ND_PRINT("\n\t OID length %u", oid_len);
1442 nd_printjnp(ndo, tptr + 1, oid_len);
1443 }
1444 }
1445
1446 return 1;
1447 }
1448
1449 void
lldp_print(netdissect_options * ndo,const u_char * pptr,u_int len)1450 lldp_print(netdissect_options *ndo,
1451 const u_char *pptr, u_int len)
1452 {
1453 uint8_t subtype;
1454 uint16_t tlv, cap, ena_cap;
1455 u_int oui, tlen, hexdump, tlv_type, tlv_len;
1456 const u_char *tptr;
1457 char *network_addr;
1458
1459 ndo->ndo_protocol = "lldp";
1460 tptr = pptr;
1461 tlen = len;
1462
1463 ND_PRINT("LLDP, length %u", len);
1464
1465 while (tlen >= sizeof(tlv)) {
1466
1467 ND_TCHECK_LEN(tptr, sizeof(tlv));
1468
1469 tlv = GET_BE_U_2(tptr);
1470
1471 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1472 tlv_len = LLDP_EXTRACT_LEN(tlv);
1473 hexdump = FALSE;
1474
1475 tlen -= sizeof(tlv);
1476 tptr += sizeof(tlv);
1477
1478 if (ndo->ndo_vflag) {
1479 ND_PRINT("\n\t%s TLV (%u), length %u",
1480 tok2str(lldp_tlv_values, "Unknown", tlv_type),
1481 tlv_type, tlv_len);
1482 }
1483
1484 /* infinite loop check */
1485 if (!tlv_type || !tlv_len) {
1486 break;
1487 }
1488
1489 ND_TCHECK_LEN(tptr, tlv_len);
1490 if (tlen < tlv_len) {
1491 goto trunc;
1492 }
1493
1494 switch (tlv_type) {
1495
1496 case LLDP_CHASSIS_ID_TLV:
1497 if (ndo->ndo_vflag) {
1498 if (tlv_len < 2) {
1499 goto trunc;
1500 }
1501 subtype = GET_U_1(tptr);
1502 ND_PRINT("\n\t Subtype %s (%u): ",
1503 tok2str(lldp_chassis_subtype_values, "Unknown", subtype),
1504 subtype);
1505
1506 switch (subtype) {
1507 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE:
1508 if (tlv_len < 1+6) {
1509 goto trunc;
1510 }
1511 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1));
1512 break;
1513
1514 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */
1515 case LLDP_CHASSIS_LOCAL_SUBTYPE:
1516 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE:
1517 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE:
1518 case LLDP_CHASSIS_PORT_COMP_SUBTYPE:
1519 nd_printjnp(ndo, tptr + 1, tlv_len - 1);
1520 break;
1521
1522 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE:
1523 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1524 if (network_addr == NULL) {
1525 goto trunc;
1526 }
1527 ND_PRINT("%s", network_addr);
1528 break;
1529
1530 default:
1531 hexdump = TRUE;
1532 break;
1533 }
1534 }
1535 break;
1536
1537 case LLDP_PORT_ID_TLV:
1538 if (ndo->ndo_vflag) {
1539 if (tlv_len < 2) {
1540 goto trunc;
1541 }
1542 subtype = GET_U_1(tptr);
1543 ND_PRINT("\n\t Subtype %s (%u): ",
1544 tok2str(lldp_port_subtype_values, "Unknown", subtype),
1545 subtype);
1546
1547 switch (subtype) {
1548 case LLDP_PORT_MAC_ADDR_SUBTYPE:
1549 if (tlv_len < 1+6) {
1550 goto trunc;
1551 }
1552 ND_PRINT("%s", GET_ETHERADDR_STRING(tptr + 1));
1553 break;
1554
1555 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */
1556 case LLDP_PORT_LOCAL_SUBTYPE:
1557 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE:
1558 case LLDP_PORT_INTF_ALIAS_SUBTYPE:
1559 case LLDP_PORT_PORT_COMP_SUBTYPE:
1560 nd_printjnp(ndo, tptr + 1, tlv_len - 1);
1561 break;
1562
1563 case LLDP_PORT_NETWORK_ADDR_SUBTYPE:
1564 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1565 if (network_addr == NULL) {
1566 goto trunc;
1567 }
1568 ND_PRINT("%s", network_addr);
1569 break;
1570
1571 default:
1572 hexdump = TRUE;
1573 break;
1574 }
1575 }
1576 break;
1577
1578 case LLDP_TTL_TLV:
1579 if (ndo->ndo_vflag) {
1580 if (tlv_len < 2) {
1581 goto trunc;
1582 }
1583 ND_PRINT(": TTL %us", GET_BE_U_2(tptr));
1584 }
1585 break;
1586
1587 case LLDP_PORT_DESCR_TLV:
1588 if (ndo->ndo_vflag) {
1589 ND_PRINT(": ");
1590 nd_printjnp(ndo, tptr, tlv_len);
1591 }
1592 break;
1593
1594 case LLDP_SYSTEM_NAME_TLV:
1595 /*
1596 * The system name is also print in non-verbose mode
1597 * similar to the CDP printer.
1598 */
1599 ND_PRINT(": ");
1600 nd_printjnp(ndo, tptr, tlv_len);
1601 break;
1602
1603 case LLDP_SYSTEM_DESCR_TLV:
1604 if (ndo->ndo_vflag) {
1605 ND_PRINT("\n\t ");
1606 nd_printjnp(ndo, tptr, tlv_len);
1607 }
1608 break;
1609
1610 case LLDP_SYSTEM_CAP_TLV:
1611 if (ndo->ndo_vflag) {
1612 /*
1613 * XXX - IEEE Std 802.1AB-2009 says the first octet
1614 * if a chassis ID subtype, with the system
1615 * capabilities and enabled capabilities following
1616 * it.
1617 */
1618 if (tlv_len < 4) {
1619 goto trunc;
1620 }
1621 cap = GET_BE_U_2(tptr);
1622 ena_cap = GET_BE_U_2(tptr + 2);
1623 ND_PRINT("\n\t System Capabilities [%s] (0x%04x)",
1624 bittok2str(lldp_cap_values, "none", cap), cap);
1625 ND_PRINT("\n\t Enabled Capabilities [%s] (0x%04x)",
1626 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap);
1627 }
1628 break;
1629
1630 case LLDP_MGMT_ADDR_TLV:
1631 if (ndo->ndo_vflag) {
1632 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) {
1633 goto trunc;
1634 }
1635 }
1636 break;
1637
1638 case LLDP_PRIVATE_TLV:
1639 if (ndo->ndo_vflag) {
1640 if (tlv_len < 3) {
1641 goto trunc;
1642 }
1643 oui = GET_BE_U_3(tptr);
1644 ND_PRINT(": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui);
1645
1646 switch (oui) {
1647 case OUI_IEEE_8021_PRIVATE:
1648 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len);
1649 break;
1650 case OUI_IEEE_8023_PRIVATE:
1651 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len);
1652 break;
1653 case OUI_IANA:
1654 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len);
1655 break;
1656 case OUI_TIA:
1657 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len);
1658 break;
1659 case OUI_DCBX:
1660 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len);
1661 break;
1662 default:
1663 hexdump = TRUE;
1664 break;
1665 }
1666 }
1667 break;
1668
1669 default:
1670 hexdump = TRUE;
1671 break;
1672 }
1673
1674 /* do we also want to see a hex dump ? */
1675 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1676 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1677 }
1678
1679 tlen -= tlv_len;
1680 tptr += tlv_len;
1681 }
1682 return;
1683 trunc:
1684 nd_print_trunc(ndo);
1685 }
1686