1 /*
2 * Copyright (c) 1998-2007 The TCPDUMP project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that: (1) source code
6 * distributions retain the above copyright notice and this paragraph
7 * in its entirety, and (2) distributions including binary code include
8 * the above copyright notice and this paragraph in its entirety in
9 * the documentation or other materials provided with the distribution.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 * FOR A PARTICULAR PURPOSE.
14 *
15 * Original code by Hannes Gredler (hannes@gredler.at)
16 * IEEE and TIA extensions by Carles Kishimoto <carles.kishimoto@gmail.com>
17 * DCBX extensions by Kaladhar Musunuru <kaladharm@sourceforge.net>
18 */
19
20 /* \summary: IEEE 802.1ab Link Layer Discovery Protocol (LLDP) printer */
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include <netdissect-stdinc.h>
27
28 #include <stdio.h>
29
30 #include "netdissect.h"
31 #include "extract.h"
32 #include "addrtoname.h"
33 #include "af.h"
34 #include "oui.h"
35
36 #define LLDP_EXTRACT_TYPE(x) (((x)&0xfe00)>>9)
37 #define LLDP_EXTRACT_LEN(x) ((x)&0x01ff)
38
39 /*
40 * TLV type codes
41 */
42 #define LLDP_END_TLV 0
43 #define LLDP_CHASSIS_ID_TLV 1
44 #define LLDP_PORT_ID_TLV 2
45 #define LLDP_TTL_TLV 3
46 #define LLDP_PORT_DESCR_TLV 4
47 #define LLDP_SYSTEM_NAME_TLV 5
48 #define LLDP_SYSTEM_DESCR_TLV 6
49 #define LLDP_SYSTEM_CAP_TLV 7
50 #define LLDP_MGMT_ADDR_TLV 8
51 #define LLDP_PRIVATE_TLV 127
52
53 static const struct tok lldp_tlv_values[] = {
54 { LLDP_END_TLV, "End" },
55 { LLDP_CHASSIS_ID_TLV, "Chassis ID" },
56 { LLDP_PORT_ID_TLV, "Port ID" },
57 { LLDP_TTL_TLV, "Time to Live" },
58 { LLDP_PORT_DESCR_TLV, "Port Description" },
59 { LLDP_SYSTEM_NAME_TLV, "System Name" },
60 { LLDP_SYSTEM_DESCR_TLV, "System Description" },
61 { LLDP_SYSTEM_CAP_TLV, "System Capabilities" },
62 { LLDP_MGMT_ADDR_TLV, "Management Address" },
63 { LLDP_PRIVATE_TLV, "Organization specific" },
64 { 0, NULL}
65 };
66
67 /*
68 * Chassis ID subtypes
69 */
70 #define LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE 1
71 #define LLDP_CHASSIS_INTF_ALIAS_SUBTYPE 2
72 #define LLDP_CHASSIS_PORT_COMP_SUBTYPE 3
73 #define LLDP_CHASSIS_MAC_ADDR_SUBTYPE 4
74 #define LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE 5
75 #define LLDP_CHASSIS_INTF_NAME_SUBTYPE 6
76 #define LLDP_CHASSIS_LOCAL_SUBTYPE 7
77
78 static const struct tok lldp_chassis_subtype_values[] = {
79 { LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE, "Chassis component"},
80 { LLDP_CHASSIS_INTF_ALIAS_SUBTYPE, "Interface alias"},
81 { LLDP_CHASSIS_PORT_COMP_SUBTYPE, "Port component"},
82 { LLDP_CHASSIS_MAC_ADDR_SUBTYPE, "MAC address"},
83 { LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE, "Network address"},
84 { LLDP_CHASSIS_INTF_NAME_SUBTYPE, "Interface name"},
85 { LLDP_CHASSIS_LOCAL_SUBTYPE, "Local"},
86 { 0, NULL}
87 };
88
89 /*
90 * Port ID subtypes
91 */
92 #define LLDP_PORT_INTF_ALIAS_SUBTYPE 1
93 #define LLDP_PORT_PORT_COMP_SUBTYPE 2
94 #define LLDP_PORT_MAC_ADDR_SUBTYPE 3
95 #define LLDP_PORT_NETWORK_ADDR_SUBTYPE 4
96 #define LLDP_PORT_INTF_NAME_SUBTYPE 5
97 #define LLDP_PORT_AGENT_CIRC_ID_SUBTYPE 6
98 #define LLDP_PORT_LOCAL_SUBTYPE 7
99
100 static const struct tok lldp_port_subtype_values[] = {
101 { LLDP_PORT_INTF_ALIAS_SUBTYPE, "Interface alias"},
102 { LLDP_PORT_PORT_COMP_SUBTYPE, "Port component"},
103 { LLDP_PORT_MAC_ADDR_SUBTYPE, "MAC address"},
104 { LLDP_PORT_NETWORK_ADDR_SUBTYPE, "Network Address"},
105 { LLDP_PORT_INTF_NAME_SUBTYPE, "Interface Name"},
106 { LLDP_PORT_AGENT_CIRC_ID_SUBTYPE, "Agent circuit ID"},
107 { LLDP_PORT_LOCAL_SUBTYPE, "Local"},
108 { 0, NULL}
109 };
110
111 /*
112 * System Capabilities
113 */
114 #define LLDP_CAP_OTHER (1 << 0)
115 #define LLDP_CAP_REPEATER (1 << 1)
116 #define LLDP_CAP_BRIDGE (1 << 2)
117 #define LLDP_CAP_WLAN_AP (1 << 3)
118 #define LLDP_CAP_ROUTER (1 << 4)
119 #define LLDP_CAP_PHONE (1 << 5)
120 #define LLDP_CAP_DOCSIS (1 << 6)
121 #define LLDP_CAP_STATION_ONLY (1 << 7)
122
123 static const struct tok lldp_cap_values[] = {
124 { LLDP_CAP_OTHER, "Other"},
125 { LLDP_CAP_REPEATER, "Repeater"},
126 { LLDP_CAP_BRIDGE, "Bridge"},
127 { LLDP_CAP_WLAN_AP, "WLAN AP"},
128 { LLDP_CAP_ROUTER, "Router"},
129 { LLDP_CAP_PHONE, "Telephone"},
130 { LLDP_CAP_DOCSIS, "Docsis"},
131 { LLDP_CAP_STATION_ONLY, "Station Only"},
132 { 0, NULL}
133 };
134
135 #define LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID 1
136 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID 2
137 #define LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME 3
138 #define LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY 4
139 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION 8
140 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION 9
141 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION 10
142 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION 11
143 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY 12
144 #define LLDP_PRIVATE_8021_SUBTYPE_EVB 13
145 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP 14
146
147 static const struct tok lldp_8021_subtype_values[] = {
148 { LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID, "Port VLAN Id"},
149 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID, "Port and Protocol VLAN ID"},
150 { LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME, "VLAN name"},
151 { LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY, "Protocol Identity"},
152 { LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION, "Congestion Notification"},
153 { LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION, "ETS Configuration"},
154 { LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION, "ETS Recommendation"},
155 { LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION, "Priority Flow Control Configuration"},
156 { LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY, "Application Priority"},
157 { LLDP_PRIVATE_8021_SUBTYPE_EVB, "EVB"},
158 { LLDP_PRIVATE_8021_SUBTYPE_CDCP,"CDCP"},
159 { 0, NULL}
160 };
161
162 #define LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT (1 << 1)
163 #define LLDP_8021_PORT_PROTOCOL_VLAN_STATUS (1 << 2)
164
165 static const struct tok lldp_8021_port_protocol_id_values[] = {
166 { LLDP_8021_PORT_PROTOCOL_VLAN_SUPPORT, "supported"},
167 { LLDP_8021_PORT_PROTOCOL_VLAN_STATUS, "enabled"},
168 { 0, NULL}
169 };
170
171 #define LLDP_PRIVATE_8023_SUBTYPE_MACPHY 1
172 #define LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER 2
173 #define LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR 3
174 #define LLDP_PRIVATE_8023_SUBTYPE_MTU 4
175
176 static const struct tok lldp_8023_subtype_values[] = {
177 { LLDP_PRIVATE_8023_SUBTYPE_MACPHY, "MAC/PHY configuration/status"},
178 { LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER, "Power via MDI"},
179 { LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR, "Link aggregation"},
180 { LLDP_PRIVATE_8023_SUBTYPE_MTU, "Max frame size"},
181 { 0, NULL}
182 };
183
184 #define LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES 1
185 #define LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY 2
186 #define LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID 3
187 #define LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI 4
188 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV 5
189 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV 6
190 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV 7
191 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER 8
192 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME 9
193 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME 10
194 #define LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID 11
195
196 static const struct tok lldp_tia_subtype_values[] = {
197 { LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES, "LLDP-MED Capabilities" },
198 { LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY, "Network policy" },
199 { LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID, "Location identification" },
200 { LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI, "Extended power-via-MDI" },
201 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Inventory - hardware revision" },
202 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Inventory - firmware revision" },
203 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Inventory - software revision" },
204 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Inventory - serial number" },
205 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Inventory - manufacturer name" },
206 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Inventory - model name" },
207 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Inventory - asset ID" },
208 { 0, NULL}
209 };
210
211 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS 1
212 #define LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS 2
213
214 static const struct tok lldp_tia_location_altitude_type_values[] = {
215 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_METERS, "meters"},
216 { LLDP_PRIVATE_TIA_LOCATION_ALTITUDE_FLOORS, "floors"},
217 { 0, NULL}
218 };
219
220 /* ANSI/TIA-1057 - Annex B */
221 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1 1
222 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2 2
223 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3 3
224 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4 4
225 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5 5
226 #define LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6 6
227
228 static const struct tok lldp_tia_location_lci_catype_values[] = {
229 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A1, "national subdivisions (state,canton,region,province,prefecture)"},
230 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A2, "county, parish, gun, district"},
231 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A3, "city, township, shi"},
232 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A4, "city division, borough, city district, ward chou"},
233 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A5, "neighborhood, block"},
234 { LLDP_PRIVATE_TIA_LOCATION_LCI_CATYPE_A6, "street"},
235 { 0, NULL}
236 };
237
238 static const struct tok lldp_tia_location_lci_what_values[] = {
239 { 0, "location of DHCP server"},
240 { 1, "location of the network element believed to be closest to the client"},
241 { 2, "location of the client"},
242 { 0, NULL}
243 };
244
245 /*
246 * From RFC 3636 - dot3MauType
247 */
248 #define LLDP_MAU_TYPE_UNKNOWN 0
249 #define LLDP_MAU_TYPE_AUI 1
250 #define LLDP_MAU_TYPE_10BASE_5 2
251 #define LLDP_MAU_TYPE_FOIRL 3
252 #define LLDP_MAU_TYPE_10BASE_2 4
253 #define LLDP_MAU_TYPE_10BASE_T 5
254 #define LLDP_MAU_TYPE_10BASE_FP 6
255 #define LLDP_MAU_TYPE_10BASE_FB 7
256 #define LLDP_MAU_TYPE_10BASE_FL 8
257 #define LLDP_MAU_TYPE_10BROAD36 9
258 #define LLDP_MAU_TYPE_10BASE_T_HD 10
259 #define LLDP_MAU_TYPE_10BASE_T_FD 11
260 #define LLDP_MAU_TYPE_10BASE_FL_HD 12
261 #define LLDP_MAU_TYPE_10BASE_FL_FD 13
262 #define LLDP_MAU_TYPE_100BASE_T4 14
263 #define LLDP_MAU_TYPE_100BASE_TX_HD 15
264 #define LLDP_MAU_TYPE_100BASE_TX_FD 16
265 #define LLDP_MAU_TYPE_100BASE_FX_HD 17
266 #define LLDP_MAU_TYPE_100BASE_FX_FD 18
267 #define LLDP_MAU_TYPE_100BASE_T2_HD 19
268 #define LLDP_MAU_TYPE_100BASE_T2_FD 20
269 #define LLDP_MAU_TYPE_1000BASE_X_HD 21
270 #define LLDP_MAU_TYPE_1000BASE_X_FD 22
271 #define LLDP_MAU_TYPE_1000BASE_LX_HD 23
272 #define LLDP_MAU_TYPE_1000BASE_LX_FD 24
273 #define LLDP_MAU_TYPE_1000BASE_SX_HD 25
274 #define LLDP_MAU_TYPE_1000BASE_SX_FD 26
275 #define LLDP_MAU_TYPE_1000BASE_CX_HD 27
276 #define LLDP_MAU_TYPE_1000BASE_CX_FD 28
277 #define LLDP_MAU_TYPE_1000BASE_T_HD 29
278 #define LLDP_MAU_TYPE_1000BASE_T_FD 30
279 #define LLDP_MAU_TYPE_10GBASE_X 31
280 #define LLDP_MAU_TYPE_10GBASE_LX4 32
281 #define LLDP_MAU_TYPE_10GBASE_R 33
282 #define LLDP_MAU_TYPE_10GBASE_ER 34
283 #define LLDP_MAU_TYPE_10GBASE_LR 35
284 #define LLDP_MAU_TYPE_10GBASE_SR 36
285 #define LLDP_MAU_TYPE_10GBASE_W 37
286 #define LLDP_MAU_TYPE_10GBASE_EW 38
287 #define LLDP_MAU_TYPE_10GBASE_LW 39
288 #define LLDP_MAU_TYPE_10GBASE_SW 40
289
290 static const struct tok lldp_mau_types_values[] = {
291 { LLDP_MAU_TYPE_UNKNOWN, "Unknown"},
292 { LLDP_MAU_TYPE_AUI, "AUI"},
293 { LLDP_MAU_TYPE_10BASE_5, "10BASE_5"},
294 { LLDP_MAU_TYPE_FOIRL, "FOIRL"},
295 { LLDP_MAU_TYPE_10BASE_2, "10BASE2"},
296 { LLDP_MAU_TYPE_10BASE_T, "10BASET duplex mode unknown"},
297 { LLDP_MAU_TYPE_10BASE_FP, "10BASEFP"},
298 { LLDP_MAU_TYPE_10BASE_FB, "10BASEFB"},
299 { LLDP_MAU_TYPE_10BASE_FL, "10BASEFL duplex mode unknown"},
300 { LLDP_MAU_TYPE_10BROAD36, "10BROAD36"},
301 { LLDP_MAU_TYPE_10BASE_T_HD, "10BASET hdx"},
302 { LLDP_MAU_TYPE_10BASE_T_FD, "10BASET fdx"},
303 { LLDP_MAU_TYPE_10BASE_FL_HD, "10BASEFL hdx"},
304 { LLDP_MAU_TYPE_10BASE_FL_FD, "10BASEFL fdx"},
305 { LLDP_MAU_TYPE_100BASE_T4, "100BASET4"},
306 { LLDP_MAU_TYPE_100BASE_TX_HD, "100BASETX hdx"},
307 { LLDP_MAU_TYPE_100BASE_TX_FD, "100BASETX fdx"},
308 { LLDP_MAU_TYPE_100BASE_FX_HD, "100BASEFX hdx"},
309 { LLDP_MAU_TYPE_100BASE_FX_FD, "100BASEFX fdx"},
310 { LLDP_MAU_TYPE_100BASE_T2_HD, "100BASET2 hdx"},
311 { LLDP_MAU_TYPE_100BASE_T2_FD, "100BASET2 fdx"},
312 { LLDP_MAU_TYPE_1000BASE_X_HD, "1000BASEX hdx"},
313 { LLDP_MAU_TYPE_1000BASE_X_FD, "1000BASEX fdx"},
314 { LLDP_MAU_TYPE_1000BASE_LX_HD, "1000BASELX hdx"},
315 { LLDP_MAU_TYPE_1000BASE_LX_FD, "1000BASELX fdx"},
316 { LLDP_MAU_TYPE_1000BASE_SX_HD, "1000BASESX hdx"},
317 { LLDP_MAU_TYPE_1000BASE_SX_FD, "1000BASESX fdx"},
318 { LLDP_MAU_TYPE_1000BASE_CX_HD, "1000BASECX hdx"},
319 { LLDP_MAU_TYPE_1000BASE_CX_FD, "1000BASECX fdx"},
320 { LLDP_MAU_TYPE_1000BASE_T_HD, "1000BASET hdx"},
321 { LLDP_MAU_TYPE_1000BASE_T_FD, "1000BASET fdx"},
322 { LLDP_MAU_TYPE_10GBASE_X, "10GBASEX"},
323 { LLDP_MAU_TYPE_10GBASE_LX4, "10GBASELX4"},
324 { LLDP_MAU_TYPE_10GBASE_R, "10GBASER"},
325 { LLDP_MAU_TYPE_10GBASE_ER, "10GBASEER"},
326 { LLDP_MAU_TYPE_10GBASE_LR, "10GBASELR"},
327 { LLDP_MAU_TYPE_10GBASE_SR, "10GBASESR"},
328 { LLDP_MAU_TYPE_10GBASE_W, "10GBASEW"},
329 { LLDP_MAU_TYPE_10GBASE_EW, "10GBASEEW"},
330 { LLDP_MAU_TYPE_10GBASE_LW, "10GBASELW"},
331 { LLDP_MAU_TYPE_10GBASE_SW, "10GBASESW"},
332 { 0, NULL}
333 };
334
335 #define LLDP_8023_AUTONEGOTIATION_SUPPORT (1 << 0)
336 #define LLDP_8023_AUTONEGOTIATION_STATUS (1 << 1)
337
338 static const struct tok lldp_8023_autonegotiation_values[] = {
339 { LLDP_8023_AUTONEGOTIATION_SUPPORT, "supported"},
340 { LLDP_8023_AUTONEGOTIATION_STATUS, "enabled"},
341 { 0, NULL}
342 };
343
344 #define LLDP_TIA_CAPABILITY_MED (1 << 0)
345 #define LLDP_TIA_CAPABILITY_NETWORK_POLICY (1 << 1)
346 #define LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION (1 << 2)
347 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE (1 << 3)
348 #define LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD (1 << 4)
349 #define LLDP_TIA_CAPABILITY_INVENTORY (1 << 5)
350
351 static const struct tok lldp_tia_capabilities_values[] = {
352 { LLDP_TIA_CAPABILITY_MED, "LLDP-MED capabilities"},
353 { LLDP_TIA_CAPABILITY_NETWORK_POLICY, "network policy"},
354 { LLDP_TIA_CAPABILITY_LOCATION_IDENTIFICATION, "location identification"},
355 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PSE, "extended power via MDI-PSE"},
356 { LLDP_TIA_CAPABILITY_EXTENDED_POWER_MDI_PD, "extended power via MDI-PD"},
357 { LLDP_TIA_CAPABILITY_INVENTORY, "Inventory"},
358 { 0, NULL}
359 };
360
361 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1 1
362 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2 2
363 #define LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3 3
364 #define LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY 4
365
366 static const struct tok lldp_tia_device_type_values[] = {
367 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_1, "endpoint class 1"},
368 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_2, "endpoint class 2"},
369 { LLDP_TIA_DEVICE_TYPE_ENDPOINT_CLASS_3, "endpoint class 3"},
370 { LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY, "network connectivity"},
371 { 0, NULL}
372 };
373
374 #define LLDP_TIA_APPLICATION_TYPE_VOICE 1
375 #define LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING 2
376 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE 3
377 #define LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING 4
378 #define LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE 5
379 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING 6
380 #define LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO 7
381 #define LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING 8
382
383 static const struct tok lldp_tia_application_type_values[] = {
384 { LLDP_TIA_APPLICATION_TYPE_VOICE, "voice"},
385 { LLDP_TIA_APPLICATION_TYPE_VOICE_SIGNALING, "voice signaling"},
386 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE, "guest voice"},
387 { LLDP_TIA_APPLICATION_TYPE_GUEST_VOICE_SIGNALING, "guest voice signaling"},
388 { LLDP_TIA_APPLICATION_TYPE_SOFTPHONE_VOICE, "softphone voice"},
389 { LLDP_TIA_APPLICATION_TYPE_VIDEO_CONFERENCING, "video conferencing"},
390 { LLDP_TIA_APPLICATION_TYPE_STREAMING_VIDEO, "streaming video"},
391 { LLDP_TIA_APPLICATION_TYPE_VIDEO_SIGNALING, "video signaling"},
392 { 0, NULL}
393 };
394
395 #define LLDP_TIA_NETWORK_POLICY_X_BIT (1 << 5)
396 #define LLDP_TIA_NETWORK_POLICY_T_BIT (1 << 6)
397 #define LLDP_TIA_NETWORK_POLICY_U_BIT (1 << 7)
398
399 static const struct tok lldp_tia_network_policy_bits_values[] = {
400 { LLDP_TIA_NETWORK_POLICY_U_BIT, "Unknown"},
401 { LLDP_TIA_NETWORK_POLICY_T_BIT, "Tagged"},
402 { LLDP_TIA_NETWORK_POLICY_X_BIT, "reserved"},
403 { 0, NULL}
404 };
405
406 #define LLDP_EXTRACT_NETWORK_POLICY_VLAN(x) (((x)&0x1ffe)>>1)
407 #define LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(x) (((x)&0x01ff)>>6)
408 #define LLDP_EXTRACT_NETWORK_POLICY_DSCP(x) ((x)&0x003f)
409
410 #define LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED 1
411 #define LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS 2
412 #define LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN 3
413
414 static const struct tok lldp_tia_location_data_format_values[] = {
415 { LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED, "coordinate-based LCI"},
416 { LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS, "civic address LCI"},
417 { LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN, "ECS ELIN"},
418 { 0, NULL}
419 };
420
421 #define LLDP_TIA_LOCATION_DATUM_WGS_84 1
422 #define LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88 2
423 #define LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW 3
424
425 static const struct tok lldp_tia_location_datum_type_values[] = {
426 { LLDP_TIA_LOCATION_DATUM_WGS_84, "World Geodesic System 1984"},
427 { LLDP_TIA_LOCATION_DATUM_NAD_83_NAVD_88, "North American Datum 1983 (NAVD88)"},
428 { LLDP_TIA_LOCATION_DATUM_NAD_83_MLLW, "North American Datum 1983 (MLLW)"},
429 { 0, NULL}
430 };
431
432 #define LLDP_TIA_POWER_SOURCE_PSE 1
433 #define LLDP_TIA_POWER_SOURCE_LOCAL 2
434 #define LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL 3
435
436 static const struct tok lldp_tia_power_source_values[] = {
437 { LLDP_TIA_POWER_SOURCE_PSE, "PSE - primary power source"},
438 { LLDP_TIA_POWER_SOURCE_LOCAL, "local - backup power source"},
439 { LLDP_TIA_POWER_SOURCE_PSE_AND_LOCAL, "PSE+local - reserved"},
440 { 0, NULL}
441 };
442
443 #define LLDP_TIA_POWER_PRIORITY_CRITICAL 1
444 #define LLDP_TIA_POWER_PRIORITY_HIGH 2
445 #define LLDP_TIA_POWER_PRIORITY_LOW 3
446
447 static const struct tok lldp_tia_power_priority_values[] = {
448 { LLDP_TIA_POWER_PRIORITY_CRITICAL, "critical"},
449 { LLDP_TIA_POWER_PRIORITY_HIGH, "high"},
450 { LLDP_TIA_POWER_PRIORITY_LOW, "low"},
451 { 0, NULL}
452 };
453
454 #define LLDP_TIA_POWER_VAL_MAX 1024
455
456 static const struct tok lldp_tia_inventory_values[] = {
457 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV, "Hardware revision" },
458 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV, "Firmware revision" },
459 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV, "Software revision" },
460 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER, "Serial number" },
461 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME, "Manufacturer name" },
462 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME, "Model name" },
463 { LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID, "Asset ID" },
464 { 0, NULL}
465 };
466
467 /*
468 * From RFC 3636 - ifMauAutoNegCapAdvertisedBits
469 */
470 #define LLDP_MAU_PMD_OTHER (1 << 15)
471 #define LLDP_MAU_PMD_10BASE_T (1 << 14)
472 #define LLDP_MAU_PMD_10BASE_T_FD (1 << 13)
473 #define LLDP_MAU_PMD_100BASE_T4 (1 << 12)
474 #define LLDP_MAU_PMD_100BASE_TX (1 << 11)
475 #define LLDP_MAU_PMD_100BASE_TX_FD (1 << 10)
476 #define LLDP_MAU_PMD_100BASE_T2 (1 << 9)
477 #define LLDP_MAU_PMD_100BASE_T2_FD (1 << 8)
478 #define LLDP_MAU_PMD_FDXPAUSE (1 << 7)
479 #define LLDP_MAU_PMD_FDXAPAUSE (1 << 6)
480 #define LLDP_MAU_PMD_FDXSPAUSE (1 << 5)
481 #define LLDP_MAU_PMD_FDXBPAUSE (1 << 4)
482 #define LLDP_MAU_PMD_1000BASE_X (1 << 3)
483 #define LLDP_MAU_PMD_1000BASE_X_FD (1 << 2)
484 #define LLDP_MAU_PMD_1000BASE_T (1 << 1)
485 #define LLDP_MAU_PMD_1000BASE_T_FD (1 << 0)
486
487 static const struct tok lldp_pmd_capability_values[] = {
488 { LLDP_MAU_PMD_10BASE_T, "10BASE-T hdx"},
489 { LLDP_MAU_PMD_10BASE_T_FD, "10BASE-T fdx"},
490 { LLDP_MAU_PMD_100BASE_T4, "100BASE-T4"},
491 { LLDP_MAU_PMD_100BASE_TX, "100BASE-TX hdx"},
492 { LLDP_MAU_PMD_100BASE_TX_FD, "100BASE-TX fdx"},
493 { LLDP_MAU_PMD_100BASE_T2, "100BASE-T2 hdx"},
494 { LLDP_MAU_PMD_100BASE_T2_FD, "100BASE-T2 fdx"},
495 { LLDP_MAU_PMD_FDXPAUSE, "Pause for fdx links"},
496 { LLDP_MAU_PMD_FDXAPAUSE, "Asym PAUSE for fdx"},
497 { LLDP_MAU_PMD_FDXSPAUSE, "Sym PAUSE for fdx"},
498 { LLDP_MAU_PMD_FDXBPAUSE, "Asym and Sym PAUSE for fdx"},
499 { LLDP_MAU_PMD_1000BASE_X, "1000BASE-{X LX SX CX} hdx"},
500 { LLDP_MAU_PMD_1000BASE_X_FD, "1000BASE-{X LX SX CX} fdx"},
501 { LLDP_MAU_PMD_1000BASE_T, "1000BASE-T hdx"},
502 { LLDP_MAU_PMD_1000BASE_T_FD, "1000BASE-T fdx"},
503 { 0, NULL}
504 };
505
506 #define LLDP_MDI_PORT_CLASS (1 << 0)
507 #define LLDP_MDI_POWER_SUPPORT (1 << 1)
508 #define LLDP_MDI_POWER_STATE (1 << 2)
509 #define LLDP_MDI_PAIR_CONTROL_ABILITY (1 << 3)
510
511 static const struct tok lldp_mdi_values[] = {
512 { LLDP_MDI_PORT_CLASS, "PSE"},
513 { LLDP_MDI_POWER_SUPPORT, "supported"},
514 { LLDP_MDI_POWER_STATE, "enabled"},
515 { LLDP_MDI_PAIR_CONTROL_ABILITY, "can be controlled"},
516 { 0, NULL}
517 };
518
519 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL 1
520 #define LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE 2
521
522 static const struct tok lldp_mdi_power_pairs_values[] = {
523 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SIGNAL, "signal"},
524 { LLDP_MDI_PSE_PORT_POWER_PAIRS_SPARE, "spare"},
525 { 0, NULL}
526 };
527
528 #define LLDP_MDI_POWER_CLASS0 1
529 #define LLDP_MDI_POWER_CLASS1 2
530 #define LLDP_MDI_POWER_CLASS2 3
531 #define LLDP_MDI_POWER_CLASS3 4
532 #define LLDP_MDI_POWER_CLASS4 5
533
534 static const struct tok lldp_mdi_power_class_values[] = {
535 { LLDP_MDI_POWER_CLASS0, "class0"},
536 { LLDP_MDI_POWER_CLASS1, "class1"},
537 { LLDP_MDI_POWER_CLASS2, "class2"},
538 { LLDP_MDI_POWER_CLASS3, "class3"},
539 { LLDP_MDI_POWER_CLASS4, "class4"},
540 { 0, NULL}
541 };
542
543 #define LLDP_AGGREGATION_CAPABILTIY (1 << 0)
544 #define LLDP_AGGREGATION_STATUS (1 << 1)
545
546 static const struct tok lldp_aggregation_values[] = {
547 { LLDP_AGGREGATION_CAPABILTIY, "supported"},
548 { LLDP_AGGREGATION_STATUS, "enabled"},
549 { 0, NULL}
550 };
551
552 /*
553 * DCBX protocol subtypes.
554 */
555 #define LLDP_DCBX_SUBTYPE_1 1
556 #define LLDP_DCBX_SUBTYPE_2 2
557
558 static const struct tok lldp_dcbx_subtype_values[] = {
559 { LLDP_DCBX_SUBTYPE_1, "DCB Capability Exchange Protocol Rev 1" },
560 { LLDP_DCBX_SUBTYPE_2, "DCB Capability Exchange Protocol Rev 1.01" },
561 { 0, NULL}
562 };
563
564 #define LLDP_DCBX_CONTROL_TLV 1
565 #define LLDP_DCBX_PRIORITY_GROUPS_TLV 2
566 #define LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV 3
567 #define LLDP_DCBX_APPLICATION_TLV 4
568
569 /*
570 * Interface numbering subtypes.
571 */
572 #define LLDP_INTF_NUMB_IFX_SUBTYPE 2
573 #define LLDP_INTF_NUMB_SYSPORT_SUBTYPE 3
574
575 static const struct tok lldp_intf_numb_subtype_values[] = {
576 { LLDP_INTF_NUMB_IFX_SUBTYPE, "Interface Index" },
577 { LLDP_INTF_NUMB_SYSPORT_SUBTYPE, "System Port Number" },
578 { 0, NULL}
579 };
580
581 #define LLDP_INTF_NUM_LEN 5
582
583 #define LLDP_EVB_MODE_NOT_SUPPORTED 0
584 #define LLDP_EVB_MODE_EVB_BRIDGE 1
585 #define LLDP_EVB_MODE_EVB_STATION 2
586 #define LLDP_EVB_MODE_RESERVED 3
587
588 static const struct tok lldp_evb_mode_values[]={
589 { LLDP_EVB_MODE_NOT_SUPPORTED, "Not Supported"},
590 { LLDP_EVB_MODE_EVB_BRIDGE, "EVB Bridge"},
591 { LLDP_EVB_MODE_EVB_STATION, "EVB Staion"},
592 { LLDP_EVB_MODE_RESERVED, "Reserved for future Standardization"},
593 { 0, NULL},
594 };
595
596 #define NO_OF_BITS 8
597 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6
598 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25
599 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25
600 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6
601 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5
602 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9
603 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8
604
605 #define LLDP_IANA_SUBTYPE_MUDURL 1
606
607 static const struct tok lldp_iana_subtype_values[] = {
608 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" },
609 { 0, NULL }
610 };
611
612
613 static void
print_ets_priority_assignment_table(netdissect_options * ndo,const u_char * ptr)614 print_ets_priority_assignment_table(netdissect_options *ndo,
615 const u_char *ptr)
616 {
617 ND_PRINT((ndo, "\n\t Priority Assignment Table"));
618 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
619 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
620 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4,
621 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f));
622 }
623
624 static void
print_tc_bandwidth_table(netdissect_options * ndo,const u_char * ptr)625 print_tc_bandwidth_table(netdissect_options *ndo,
626 const u_char *ptr)
627 {
628 ND_PRINT((ndo, "\n\t TC Bandwidth Table"));
629 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7"));
630 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
631 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7]));
632 }
633
634 static void
print_tsa_assignment_table(netdissect_options * ndo,const u_char * ptr)635 print_tsa_assignment_table(netdissect_options *ndo,
636 const u_char *ptr)
637 {
638 ND_PRINT((ndo, "\n\t TSA Assignment Table"));
639 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7"));
640 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
641 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7]));
642 }
643
644 /*
645 * Print IEEE 802.1 private extensions. (802.1AB annex E)
646 */
647 static int
lldp_private_8021_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)648 lldp_private_8021_print(netdissect_options *ndo,
649 const u_char *tptr, u_int tlv_len)
650 {
651 int subtype, hexdump = FALSE;
652 u_int sublen;
653 u_int tval;
654 u_int i;
655
656 if (tlv_len < 4) {
657 return hexdump;
658 }
659 subtype = *(tptr+3);
660
661 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
662 tok2str(lldp_8021_subtype_values, "unknown", subtype),
663 subtype));
664
665 switch (subtype) {
666 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID:
667 if (tlv_len < 6) {
668 return hexdump;
669 }
670 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u",
671 EXTRACT_16BITS(tptr + 4)));
672 break;
673 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID:
674 if (tlv_len < 7) {
675 return hexdump;
676 }
677 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)",
678 EXTRACT_16BITS(tptr+5),
679 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)),
680 *(tptr + 4)));
681 break;
682 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME:
683 if (tlv_len < 6) {
684 return hexdump;
685 }
686 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4)));
687 if (tlv_len < 7) {
688 return hexdump;
689 }
690 sublen = *(tptr+6);
691 if (tlv_len < 7+sublen) {
692 return hexdump;
693 }
694 ND_PRINT((ndo, "\n\t vlan name: "));
695 safeputs(ndo, tptr + 7, sublen);
696 break;
697 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY:
698 if (tlv_len < 5) {
699 return hexdump;
700 }
701 sublen = *(tptr+4);
702 if (tlv_len < 5+sublen) {
703 return hexdump;
704 }
705 ND_PRINT((ndo, "\n\t protocol identity: "));
706 safeputs(ndo, tptr + 5, sublen);
707 break;
708 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION:
709 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){
710 return hexdump;
711 }
712 tval=*(tptr+4);
713 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator"));
714 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
715 ND_PRINT((ndo, "\n\t Value : "));
716 for(i=0;i<NO_OF_BITS;i++)
717 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01));
718 tval=*(tptr+5);
719 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator"));
720 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
721 ND_PRINT((ndo, "\n\t Value : "));
722 for(i=0;i<NO_OF_BITS;i++)
723 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01));
724 break;
725
726 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION:
727 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) {
728 return hexdump;
729 }
730 tval=*(tptr+4);
731 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d",
732 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07));
733
734 /*Print Priority Assignment Table*/
735 print_ets_priority_assignment_table(ndo, tptr + 5);
736
737 /*Print TC Bandwidth Table*/
738 print_tc_bandwidth_table(ndo, tptr + 9);
739
740 /* Print TSA Assignment Table */
741 print_tsa_assignment_table(ndo, tptr + 17);
742
743 break;
744
745 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION:
746 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) {
747 return hexdump;
748 }
749 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4)));
750 /*Print Priority Assignment Table */
751 print_ets_priority_assignment_table(ndo, tptr + 5);
752 /*Print TC Bandwidth Table */
753 print_tc_bandwidth_table(ndo, tptr + 9);
754 /* Print TSA Assignment Table */
755 print_tsa_assignment_table(ndo, tptr + 17);
756 break;
757
758 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION:
759 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) {
760 return hexdump;
761 }
762 tval=*(tptr+4);
763 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ",
764 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f)));
765 ND_PRINT((ndo, "\n\t PFC Enable"));
766 tval=*(tptr+5);
767 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
768 ND_PRINT((ndo, "\n\t Value : "));
769 for(i=0;i<NO_OF_BITS;i++)
770 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01));
771 break;
772
773 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY:
774 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) {
775 return hexdump;
776 }
777 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4)));
778 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){
779 return hexdump;
780 }
781 /* Length of Application Priority Table */
782 sublen=tlv_len-5;
783 if(sublen%3!=0){
784 return hexdump;
785 }
786 i=0;
787 ND_PRINT((ndo, "\n\t Application Priority Table"));
788 while(i<sublen) {
789 tval=*(tptr+i+5);
790 ND_PRINT((ndo, "\n\t Priority: %u, RES: %u, Sel: %u, Protocol ID: %u",
791 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07),
792 EXTRACT_16BITS(tptr + i + 5)));
793 i=i+3;
794 }
795 break;
796 case LLDP_PRIVATE_8021_SUBTYPE_EVB:
797 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){
798 return hexdump;
799 }
800 ND_PRINT((ndo, "\n\t EVB Bridge Status"));
801 tval=*(tptr+4);
802 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d",
803 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01));
804 ND_PRINT((ndo, "\n\t EVB Station Status"));
805 tval=*(tptr+5);
806 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d",
807 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03));
808 tval=*(tptr+6);
809 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f));
810 tval=*(tptr+7);
811 ND_PRINT((ndo, "EVB Mode: %s [%d]",
812 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6));
813 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f));
814 tval=*(tptr+8);
815 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f));
816 break;
817
818 case LLDP_PRIVATE_8021_SUBTYPE_CDCP:
819 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){
820 return hexdump;
821 }
822 tval=*(tptr+4);
823 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ",
824 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01));
825 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff));
826 sublen=tlv_len-8;
827 if(sublen%3!=0) {
828 return hexdump;
829 }
830 i=0;
831 while(i<sublen) {
832 tval=EXTRACT_24BITS(tptr+i+8);
833 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d",
834 tval >> 12, tval & 0x000fff));
835 i=i+3;
836 }
837 break;
838
839 default:
840 hexdump = TRUE;
841 break;
842 }
843
844 return hexdump;
845 }
846
847 /*
848 * Print IEEE 802.3 private extensions. (802.3bc)
849 */
850 static int
lldp_private_8023_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)851 lldp_private_8023_print(netdissect_options *ndo,
852 const u_char *tptr, u_int tlv_len)
853 {
854 int subtype, hexdump = FALSE;
855
856 if (tlv_len < 4) {
857 return hexdump;
858 }
859 subtype = *(tptr+3);
860
861 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
862 tok2str(lldp_8023_subtype_values, "unknown", subtype),
863 subtype));
864
865 switch (subtype) {
866 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY:
867 if (tlv_len < 9) {
868 return hexdump;
869 }
870 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)",
871 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)),
872 *(tptr + 4)));
873 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)",
874 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)),
875 EXTRACT_16BITS(tptr + 5)));
876 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)",
877 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)),
878 EXTRACT_16BITS(tptr + 7)));
879 break;
880
881 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER:
882 if (tlv_len < 7) {
883 return hexdump;
884 }
885 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s",
886 bittok2str(lldp_mdi_values, "none", *(tptr+4)),
887 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)),
888 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6))));
889 break;
890
891 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR:
892 if (tlv_len < 9) {
893 return hexdump;
894 }
895 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u",
896 bittok2str(lldp_aggregation_values, "none", *(tptr+4)),
897 EXTRACT_32BITS(tptr + 5)));
898 break;
899
900 case LLDP_PRIVATE_8023_SUBTYPE_MTU:
901 if (tlv_len < 6) {
902 return hexdump;
903 }
904 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4)));
905 break;
906
907 default:
908 hexdump = TRUE;
909 break;
910 }
911
912 return hexdump;
913 }
914
915 /*
916 * Extract 34bits of latitude/longitude coordinates.
917 */
918 static uint64_t
lldp_extract_latlon(const u_char * tptr)919 lldp_extract_latlon(const u_char *tptr)
920 {
921 uint64_t latlon;
922
923 latlon = *tptr & 0x3;
924 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1);
925
926 return latlon;
927 }
928
929 /* objects defined in IANA subtype 00 00 5e
930 * (right now there is only one)
931 */
932
933
934 static int
lldp_private_iana_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)935 lldp_private_iana_print(netdissect_options *ndo,
936 const u_char *tptr, u_int tlv_len)
937 {
938 int subtype, hexdump = FALSE;
939
940 if (tlv_len < 8) {
941 return hexdump;
942 }
943 subtype = *(tptr+3);
944
945 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
946 tok2str(lldp_iana_subtype_values, "unknown", subtype),
947 subtype));
948
949 switch (subtype) {
950 case LLDP_IANA_SUBTYPE_MUDURL:
951 ND_PRINT((ndo, "\n\t MUD-URL="));
952 (void)fn_printn(ndo, tptr+4, tlv_len-4, NULL);
953 break;
954 default:
955 hexdump=TRUE;
956 }
957
958 return hexdump;
959 }
960
961
962
963 /*
964 * Print private TIA extensions.
965 */
966 static int
lldp_private_tia_print(netdissect_options * ndo,const u_char * tptr,u_int tlv_len)967 lldp_private_tia_print(netdissect_options *ndo,
968 const u_char *tptr, u_int tlv_len)
969 {
970 int subtype, hexdump = FALSE;
971 uint8_t location_format;
972 uint16_t power_val;
973 u_int lci_len;
974 uint8_t ca_type, ca_len;
975
976 if (tlv_len < 4) {
977 return hexdump;
978 }
979 subtype = *(tptr+3);
980
981 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
982 tok2str(lldp_tia_subtype_values, "unknown", subtype),
983 subtype));
984
985 switch (subtype) {
986 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES:
987 if (tlv_len < 7) {
988 return hexdump;
989 }
990 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)",
991 bittok2str(lldp_tia_capabilities_values, "none",
992 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4)));
993 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)",
994 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)),
995 *(tptr + 6)));
996 break;
997
998 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY:
999 if (tlv_len < 8) {
1000 return hexdump;
1001 }
1002 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)",
1003 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)),
1004 *(tptr + 4)));
1005 ND_PRINT((ndo, ", Flags [%s]", bittok2str(
1006 lldp_tia_network_policy_bits_values, "none", *(tptr + 5))));
1007 ND_PRINT((ndo, "\n\t Vlan id %u",
1008 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5))));
1009 ND_PRINT((ndo, ", L2 priority %u",
1010 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6))));
1011 ND_PRINT((ndo, ", DSCP value %u",
1012 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6))));
1013 break;
1014
1015 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID:
1016 if (tlv_len < 5) {
1017 return hexdump;
1018 }
1019 location_format = *(tptr+4);
1020 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)",
1021 tok2str(lldp_tia_location_data_format_values, "unknown", location_format),
1022 location_format));
1023
1024 switch (location_format) {
1025 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED:
1026 if (tlv_len < 21) {
1027 return hexdump;
1028 }
1029 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64,
1030 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5)));
1031 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64,
1032 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10)));
1033 ND_PRINT((ndo, "\n\t Altitude type %s (%u)",
1034 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)),
1035 (*(tptr + 15) >> 4)));
1036 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x",
1037 (EXTRACT_16BITS(tptr+15)>>6)&0x3f,
1038 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff))));
1039 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)",
1040 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)),
1041 *(tptr + 20)));
1042 break;
1043
1044 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS:
1045 if (tlv_len < 6) {
1046 return hexdump;
1047 }
1048 lci_len = *(tptr+5);
1049 if (lci_len < 3) {
1050 return hexdump;
1051 }
1052 if (tlv_len < 7+lci_len) {
1053 return hexdump;
1054 }
1055 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ",
1056 lci_len,
1057 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)),
1058 *(tptr + 6)));
1059
1060 /* Country code */
1061 safeputs(ndo, tptr + 7, 2);
1062
1063 lci_len = lci_len-3;
1064 tptr = tptr + 9;
1065
1066 /* Decode each civic address element */
1067 while (lci_len > 0) {
1068 if (lci_len < 2) {
1069 return hexdump;
1070 }
1071 ca_type = *(tptr);
1072 ca_len = *(tptr+1);
1073
1074 tptr += 2;
1075 lci_len -= 2;
1076
1077 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ",
1078 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type),
1079 ca_type, ca_len));
1080
1081 /* basic sanity check */
1082 if ( ca_type == 0 || ca_len == 0) {
1083 return hexdump;
1084 }
1085 if (lci_len < ca_len) {
1086 return hexdump;
1087 }
1088
1089 safeputs(ndo, tptr, ca_len);
1090 tptr += ca_len;
1091 lci_len -= ca_len;
1092 }
1093 break;
1094
1095 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN:
1096 ND_PRINT((ndo, "\n\t ECS ELIN id "));
1097 safeputs(ndo, tptr + 5, tlv_len - 5);
1098 break;
1099
1100 default:
1101 ND_PRINT((ndo, "\n\t Location ID "));
1102 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5);
1103 }
1104 break;
1105
1106 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI:
1107 if (tlv_len < 7) {
1108 return hexdump;
1109 }
1110 ND_PRINT((ndo, "\n\t Power type [%s]",
1111 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device"));
1112 ND_PRINT((ndo, ", Power source [%s]",
1113 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4)));
1114 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)",
1115 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f),
1116 *(tptr + 4) & 0x0f));
1117 power_val = EXTRACT_16BITS(tptr+5);
1118 if (power_val < LLDP_TIA_POWER_VAL_MAX) {
1119 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10));
1120 } else {
1121 ND_PRINT((ndo, ", Power %u (Reserved)", power_val));
1122 }
1123 break;
1124
1125 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV:
1126 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV:
1127 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV:
1128 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER:
1129 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME:
1130 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME:
1131 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID:
1132 ND_PRINT((ndo, "\n\t %s ",
1133 tok2str(lldp_tia_inventory_values, "unknown", subtype)));
1134 safeputs(ndo, tptr + 4, tlv_len - 4);
1135 break;
1136
1137 default:
1138 hexdump = TRUE;
1139 break;
1140 }
1141
1142 return hexdump;
1143 }
1144
1145 /*
1146 * Print DCBX Protocol fields (V 1.01).
1147 */
1148 static int
lldp_private_dcbx_print(netdissect_options * ndo,const u_char * pptr,u_int len)1149 lldp_private_dcbx_print(netdissect_options *ndo,
1150 const u_char *pptr, u_int len)
1151 {
1152 int subtype, hexdump = FALSE;
1153 uint8_t tval;
1154 uint16_t tlv;
1155 uint32_t i, pgval, uval;
1156 u_int tlen, tlv_type, tlv_len;
1157 const u_char *tptr, *mptr;
1158
1159 if (len < 4) {
1160 return hexdump;
1161 }
1162 subtype = *(pptr+3);
1163
1164 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
1165 tok2str(lldp_dcbx_subtype_values, "unknown", subtype),
1166 subtype));
1167
1168 /* by passing old version */
1169 if (subtype == LLDP_DCBX_SUBTYPE_1)
1170 return TRUE;
1171
1172 tptr = pptr + 4;
1173 tlen = len - 4;
1174
1175 while (tlen >= sizeof(tlv)) {
1176
1177 ND_TCHECK2(*tptr, sizeof(tlv));
1178
1179 tlv = EXTRACT_16BITS(tptr);
1180
1181 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1182 tlv_len = LLDP_EXTRACT_LEN(tlv);
1183 hexdump = FALSE;
1184
1185 tlen -= sizeof(tlv);
1186 tptr += sizeof(tlv);
1187
1188 /* loop check */
1189 if (!tlv_type || !tlv_len) {
1190 break;
1191 }
1192
1193 ND_TCHECK2(*tptr, tlv_len);
1194 if (tlen < tlv_len) {
1195 goto trunc;
1196 }
1197
1198 /* decode every tlv */
1199 switch (tlv_type) {
1200 case LLDP_DCBX_CONTROL_TLV:
1201 if (tlv_len < 10) {
1202 goto trunc;
1203 }
1204 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)",
1205 LLDP_DCBX_CONTROL_TLV, tlv_len));
1206 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1207 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1208 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2)));
1209 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d",
1210 EXTRACT_32BITS(tptr + 6)));
1211 break;
1212 case LLDP_DCBX_PRIORITY_GROUPS_TLV:
1213 if (tlv_len < 17) {
1214 goto trunc;
1215 }
1216 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)",
1217 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len));
1218 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1219 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1220 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2)));
1221 tval = *(tptr+2);
1222 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d",
1223 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1224 (tval & 0x20) ? 1 : 0));
1225 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3)));
1226 ND_PRINT((ndo, "\n\t Priority Allocation"));
1227
1228 /*
1229 * Array of 8 4-bit priority group ID values; we fetch all
1230 * 32 bits and extract each nibble.
1231 */
1232 pgval = EXTRACT_32BITS(tptr+4);
1233 for (i = 0; i <= 7; i++) {
1234 ND_PRINT((ndo, "\n\t PgId_%d: %d",
1235 i, (pgval >> (28 - 4 * i)) & 0xF));
1236 }
1237 ND_PRINT((ndo, "\n\t Priority Group Allocation"));
1238 for (i = 0; i <= 7; i++)
1239 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i)));
1240 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8)));
1241 break;
1242 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV:
1243 if (tlv_len < 6) {
1244 goto trunc;
1245 }
1246 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control"));
1247 ND_PRINT((ndo, " (type 0x%x, length %d)",
1248 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len));
1249 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1250 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1251 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2)));
1252 tval = *(tptr+2);
1253 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d",
1254 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1255 (tval & 0x20) ? 1 : 0));
1256 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3)));
1257 tval = *(tptr+4);
1258 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4)));
1259 for (i = 0; i <= 7; i++)
1260 ND_PRINT((ndo, "\n\t Priority Bit %d: %s",
1261 i, (tval & (1 << i)) ? "Enabled" : "Disabled"));
1262 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5)));
1263 break;
1264 case LLDP_DCBX_APPLICATION_TLV:
1265 if (tlv_len < 4) {
1266 goto trunc;
1267 }
1268 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)",
1269 LLDP_DCBX_APPLICATION_TLV, tlv_len));
1270 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1271 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1272 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2)));
1273 tval = *(tptr+2);
1274 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d",
1275 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1276 (tval & 0x20) ? 1 : 0));
1277 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3)));
1278 tval = tlv_len - 4;
1279 mptr = tptr + 4;
1280 while (tval >= 6) {
1281 ND_PRINT((ndo, "\n\t Application Value"));
1282 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x",
1283 EXTRACT_16BITS(mptr)));
1284 uval = EXTRACT_24BITS(mptr+2);
1285 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s",
1286 (uval >> 22),
1287 (uval >> 22) ? "Socket Number" : "L2 EtherType"));
1288 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff));
1289 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5)));
1290 tval = tval - 6;
1291 mptr = mptr + 6;
1292 }
1293 break;
1294 default:
1295 hexdump = TRUE;
1296 break;
1297 }
1298
1299 /* do we also want to see a hex dump ? */
1300 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1301 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1302 }
1303
1304 tlen -= tlv_len;
1305 tptr += tlv_len;
1306 }
1307
1308 trunc:
1309 return hexdump;
1310 }
1311
1312 static char *
lldp_network_addr_print(netdissect_options * ndo,const u_char * tptr,u_int len)1313 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len)
1314 {
1315 uint8_t af;
1316 static char buf[BUFSIZE];
1317 const char * (*pfunc)(netdissect_options *, const u_char *);
1318
1319 if (len < 1)
1320 return NULL;
1321 len--;
1322 af = *tptr;
1323 switch (af) {
1324 case AFNUM_INET:
1325 if (len < 4)
1326 return NULL;
1327 /* This cannot be assigned to ipaddr_string(), which is a macro. */
1328 pfunc = getname;
1329 break;
1330 case AFNUM_INET6:
1331 if (len < 16)
1332 return NULL;
1333 /* This cannot be assigned to ip6addr_string(), which is a macro. */
1334 pfunc = getname6;
1335 break;
1336 case AFNUM_802:
1337 if (len < 6)
1338 return NULL;
1339 pfunc = etheraddr_string;
1340 break;
1341 default:
1342 pfunc = NULL;
1343 break;
1344 }
1345
1346 if (!pfunc) {
1347 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !",
1348 tok2str(af_values, "Unknown", af), af);
1349 } else {
1350 snprintf(buf, sizeof(buf), "AFI %s (%u): %s",
1351 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1));
1352 }
1353
1354 return buf;
1355 }
1356
1357 static int
lldp_mgmt_addr_tlv_print(netdissect_options * ndo,const u_char * pptr,u_int len)1358 lldp_mgmt_addr_tlv_print(netdissect_options *ndo,
1359 const u_char *pptr, u_int len)
1360 {
1361 uint8_t mgmt_addr_len, intf_num_subtype, oid_len;
1362 const u_char *tptr;
1363 u_int tlen;
1364 char *mgmt_addr;
1365
1366 tlen = len;
1367 tptr = pptr;
1368
1369 if (tlen < 1) {
1370 return 0;
1371 }
1372 mgmt_addr_len = *tptr++;
1373 tlen--;
1374
1375 if (tlen < mgmt_addr_len) {
1376 return 0;
1377 }
1378
1379 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len);
1380 if (mgmt_addr == NULL) {
1381 return 0;
1382 }
1383 ND_PRINT((ndo, "\n\t Management Address length %u, %s",
1384 mgmt_addr_len, mgmt_addr));
1385 tptr += mgmt_addr_len;
1386 tlen -= mgmt_addr_len;
1387
1388 if (tlen < LLDP_INTF_NUM_LEN) {
1389 return 0;
1390 }
1391
1392 intf_num_subtype = *tptr;
1393 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u",
1394 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype),
1395 intf_num_subtype,
1396 EXTRACT_32BITS(tptr + 1)));
1397
1398 tptr += LLDP_INTF_NUM_LEN;
1399 tlen -= LLDP_INTF_NUM_LEN;
1400
1401 /*
1402 * The OID is optional.
1403 */
1404 if (tlen) {
1405 oid_len = *tptr;
1406
1407 if (tlen < 1U + oid_len) {
1408 return 0;
1409 }
1410 if (oid_len) {
1411 ND_PRINT((ndo, "\n\t OID length %u", oid_len));
1412 safeputs(ndo, tptr + 1, oid_len);
1413 }
1414 }
1415
1416 return 1;
1417 }
1418
1419 void
lldp_print(netdissect_options * ndo,register const u_char * pptr,register u_int len)1420 lldp_print(netdissect_options *ndo,
1421 register const u_char *pptr, register u_int len)
1422 {
1423 uint8_t subtype;
1424 uint16_t tlv, cap, ena_cap;
1425 u_int oui, tlen, hexdump, tlv_type, tlv_len;
1426 const u_char *tptr;
1427 char *network_addr;
1428
1429 tptr = pptr;
1430 tlen = len;
1431
1432 ND_PRINT((ndo, "LLDP, length %u", len));
1433
1434 while (tlen >= sizeof(tlv)) {
1435
1436 ND_TCHECK2(*tptr, sizeof(tlv));
1437
1438 tlv = EXTRACT_16BITS(tptr);
1439
1440 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1441 tlv_len = LLDP_EXTRACT_LEN(tlv);
1442 hexdump = FALSE;
1443
1444 tlen -= sizeof(tlv);
1445 tptr += sizeof(tlv);
1446
1447 if (ndo->ndo_vflag) {
1448 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u",
1449 tok2str(lldp_tlv_values, "Unknown", tlv_type),
1450 tlv_type, tlv_len));
1451 }
1452
1453 /* infinite loop check */
1454 if (!tlv_type || !tlv_len) {
1455 break;
1456 }
1457
1458 ND_TCHECK2(*tptr, tlv_len);
1459 if (tlen < tlv_len) {
1460 goto trunc;
1461 }
1462
1463 switch (tlv_type) {
1464
1465 case LLDP_CHASSIS_ID_TLV:
1466 if (ndo->ndo_vflag) {
1467 if (tlv_len < 2) {
1468 goto trunc;
1469 }
1470 subtype = *tptr;
1471 ND_PRINT((ndo, "\n\t Subtype %s (%u): ",
1472 tok2str(lldp_chassis_subtype_values, "Unknown", subtype),
1473 subtype));
1474
1475 switch (subtype) {
1476 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE:
1477 if (tlv_len < 1+6) {
1478 goto trunc;
1479 }
1480 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1)));
1481 break;
1482
1483 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */
1484 case LLDP_CHASSIS_LOCAL_SUBTYPE:
1485 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE:
1486 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE:
1487 case LLDP_CHASSIS_PORT_COMP_SUBTYPE:
1488 safeputs(ndo, tptr + 1, tlv_len - 1);
1489 break;
1490
1491 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE:
1492 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1493 if (network_addr == NULL) {
1494 goto trunc;
1495 }
1496 ND_PRINT((ndo, "%s", network_addr));
1497 break;
1498
1499 default:
1500 hexdump = TRUE;
1501 break;
1502 }
1503 }
1504 break;
1505
1506 case LLDP_PORT_ID_TLV:
1507 if (ndo->ndo_vflag) {
1508 if (tlv_len < 2) {
1509 goto trunc;
1510 }
1511 subtype = *tptr;
1512 ND_PRINT((ndo, "\n\t Subtype %s (%u): ",
1513 tok2str(lldp_port_subtype_values, "Unknown", subtype),
1514 subtype));
1515
1516 switch (subtype) {
1517 case LLDP_PORT_MAC_ADDR_SUBTYPE:
1518 if (tlv_len < 1+6) {
1519 goto trunc;
1520 }
1521 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1)));
1522 break;
1523
1524 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */
1525 case LLDP_PORT_LOCAL_SUBTYPE:
1526 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE:
1527 case LLDP_PORT_INTF_ALIAS_SUBTYPE:
1528 case LLDP_PORT_PORT_COMP_SUBTYPE:
1529 safeputs(ndo, tptr + 1, tlv_len - 1);
1530 break;
1531
1532 case LLDP_PORT_NETWORK_ADDR_SUBTYPE:
1533 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1534 if (network_addr == NULL) {
1535 goto trunc;
1536 }
1537 ND_PRINT((ndo, "%s", network_addr));
1538 break;
1539
1540 default:
1541 hexdump = TRUE;
1542 break;
1543 }
1544 }
1545 break;
1546
1547 case LLDP_TTL_TLV:
1548 if (ndo->ndo_vflag) {
1549 if (tlv_len < 2) {
1550 goto trunc;
1551 }
1552 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr)));
1553 }
1554 break;
1555
1556 case LLDP_PORT_DESCR_TLV:
1557 if (ndo->ndo_vflag) {
1558 ND_PRINT((ndo, ": "));
1559 safeputs(ndo, tptr, tlv_len);
1560 }
1561 break;
1562
1563 case LLDP_SYSTEM_NAME_TLV:
1564 /*
1565 * The system name is also print in non-verbose mode
1566 * similar to the CDP printer.
1567 */
1568 ND_PRINT((ndo, ": "));
1569 safeputs(ndo, tptr, tlv_len);
1570 break;
1571
1572 case LLDP_SYSTEM_DESCR_TLV:
1573 if (ndo->ndo_vflag) {
1574 ND_PRINT((ndo, "\n\t "));
1575 safeputs(ndo, tptr, tlv_len);
1576 }
1577 break;
1578
1579 case LLDP_SYSTEM_CAP_TLV:
1580 if (ndo->ndo_vflag) {
1581 /*
1582 * XXX - IEEE Std 802.1AB-2009 says the first octet
1583 * if a chassis ID subtype, with the system
1584 * capabilities and enabled capabilities following
1585 * it.
1586 */
1587 if (tlv_len < 4) {
1588 goto trunc;
1589 }
1590 cap = EXTRACT_16BITS(tptr);
1591 ena_cap = EXTRACT_16BITS(tptr+2);
1592 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)",
1593 bittok2str(lldp_cap_values, "none", cap), cap));
1594 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)",
1595 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap));
1596 }
1597 break;
1598
1599 case LLDP_MGMT_ADDR_TLV:
1600 if (ndo->ndo_vflag) {
1601 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) {
1602 goto trunc;
1603 }
1604 }
1605 break;
1606
1607 case LLDP_PRIVATE_TLV:
1608 if (ndo->ndo_vflag) {
1609 if (tlv_len < 3) {
1610 goto trunc;
1611 }
1612 oui = EXTRACT_24BITS(tptr);
1613 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui));
1614
1615 switch (oui) {
1616 case OUI_IEEE_8021_PRIVATE:
1617 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len);
1618 break;
1619 case OUI_IEEE_8023_PRIVATE:
1620 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len);
1621 break;
1622 case OUI_IANA:
1623 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len);
1624 break;
1625 case OUI_TIA:
1626 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len);
1627 break;
1628 case OUI_DCBX:
1629 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len);
1630 break;
1631 default:
1632 hexdump = TRUE;
1633 break;
1634 }
1635 }
1636 break;
1637
1638 default:
1639 hexdump = TRUE;
1640 break;
1641 }
1642
1643 /* do we also want to see a hex dump ? */
1644 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1645 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1646 }
1647
1648 tlen -= tlv_len;
1649 tptr += tlv_len;
1650 }
1651 return;
1652 trunc:
1653 ND_PRINT((ndo, "\n\t[|LLDP]"));
1654 }
1655
1656 /*
1657 * Local Variables:
1658 * c-style: whitesmith
1659 * c-basic-offset: 4
1660 * End:
1661 */
1662