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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 };
594
595 #define NO_OF_BITS 8
596 #define LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH 6
597 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH 25
598 #define LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH 25
599 #define LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH 6
600 #define LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH 5
601 #define LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH 9
602 #define LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH 8
603
604 #define LLDP_IANA_SUBTYPE_MUDURL 1
605
606 static const struct tok lldp_iana_subtype_values[] = {
607 { LLDP_IANA_SUBTYPE_MUDURL, "MUD-URL" },
608 { 0, NULL }
609 };
610
611
612 static void
613 print_ets_priority_assignment_table(netdissect_options *ndo,
614 const u_char *ptr)
615 {
616 ND_PRINT((ndo, "\n\t Priority Assignment Table"));
617 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
618 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
619 ptr[0]>>4,ptr[0]&0x0f,ptr[1]>>4,ptr[1]&0x0f,ptr[2]>>4,
620 ptr[2] & 0x0f, ptr[3] >> 4, ptr[3] & 0x0f));
621 }
622
623 static void
624 print_tc_bandwidth_table(netdissect_options *ndo,
625 const u_char *ptr)
626 {
627 ND_PRINT((ndo, "\n\t TC Bandwidth Table"));
628 ND_PRINT((ndo, "\n\t TC%% : 0 1 2 3 4 5 6 7"));
629 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
630 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7]));
631 }
632
633 static void
634 print_tsa_assignment_table(netdissect_options *ndo,
635 const u_char *ptr)
636 {
637 ND_PRINT((ndo, "\n\t TSA Assignment Table"));
638 ND_PRINT((ndo, "\n\t Traffic Class: 0 1 2 3 4 5 6 7"));
639 ND_PRINT((ndo, "\n\t Value : %-3d %-3d %-3d %-3d %-3d %-3d %-3d %-3d",
640 ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7]));
641 }
642
643 /*
644 * Print IEEE 802.1 private extensions. (802.1AB annex E)
645 */
646 static int
647 lldp_private_8021_print(netdissect_options *ndo,
648 const u_char *tptr, u_int tlv_len)
649 {
650 int subtype, hexdump = FALSE;
651 u_int sublen;
652 u_int tval;
653 uint8_t i;
654
655 if (tlv_len < 4) {
656 return hexdump;
657 }
658 subtype = *(tptr+3);
659
660 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
661 tok2str(lldp_8021_subtype_values, "unknown", subtype),
662 subtype));
663
664 switch (subtype) {
665 case LLDP_PRIVATE_8021_SUBTYPE_PORT_VLAN_ID:
666 if (tlv_len < 6) {
667 return hexdump;
668 }
669 ND_PRINT((ndo, "\n\t port vlan id (PVID): %u",
670 EXTRACT_16BITS(tptr + 4)));
671 break;
672 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_VLAN_ID:
673 if (tlv_len < 7) {
674 return hexdump;
675 }
676 ND_PRINT((ndo, "\n\t port and protocol vlan id (PPVID): %u, flags [%s] (0x%02x)",
677 EXTRACT_16BITS(tptr+5),
678 bittok2str(lldp_8021_port_protocol_id_values, "none", *(tptr+4)),
679 *(tptr + 4)));
680 break;
681 case LLDP_PRIVATE_8021_SUBTYPE_VLAN_NAME:
682 if (tlv_len < 6) {
683 return hexdump;
684 }
685 ND_PRINT((ndo, "\n\t vlan id (VID): %u", EXTRACT_16BITS(tptr + 4)));
686 if (tlv_len < 7) {
687 return hexdump;
688 }
689 sublen = *(tptr+6);
690 if (tlv_len < 7+sublen) {
691 return hexdump;
692 }
693 ND_PRINT((ndo, "\n\t vlan name: "));
694 safeputs(ndo, tptr + 7, sublen);
695 break;
696 case LLDP_PRIVATE_8021_SUBTYPE_PROTOCOL_IDENTITY:
697 if (tlv_len < 5) {
698 return hexdump;
699 }
700 sublen = *(tptr+4);
701 if (tlv_len < 5+sublen) {
702 return hexdump;
703 }
704 ND_PRINT((ndo, "\n\t protocol identity: "));
705 safeputs(ndo, tptr + 5, sublen);
706 break;
707 case LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION:
708 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CONGESTION_NOTIFICATION_LENGTH){
709 return hexdump;
710 }
711 tval=*(tptr+4);
712 ND_PRINT((ndo, "\n\t Pre-Priority CNPV Indicator"));
713 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
714 ND_PRINT((ndo, "\n\t Value : "));
715 for(i=0;i<NO_OF_BITS;i++)
716 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01));
717 tval=*(tptr+5);
718 ND_PRINT((ndo, "\n\t Pre-Priority Ready Indicator"));
719 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
720 ND_PRINT((ndo, "\n\t Value : "));
721 for(i=0;i<NO_OF_BITS;i++)
722 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01));
723 break;
724
725 case LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION:
726 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_CONFIGURATION_LENGTH) {
727 return hexdump;
728 }
729 tval=*(tptr+4);
730 ND_PRINT((ndo, "\n\t Willing:%d, CBS:%d, RES:%d, Max TCs:%d",
731 tval >> 7, (tval >> 6) & 0x02, (tval >> 3) & 0x07, tval & 0x07));
732
733 /*Print Priority Assignment Table*/
734 print_ets_priority_assignment_table(ndo, tptr + 5);
735
736 /*Print TC Bandwidth Table*/
737 print_tc_bandwidth_table(ndo, tptr + 9);
738
739 /* Print TSA Assignment Table */
740 print_tsa_assignment_table(ndo, tptr + 17);
741
742 break;
743
744 case LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION:
745 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_ETS_RECOMMENDATION_LENGTH) {
746 return hexdump;
747 }
748 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4)));
749 /*Print Priority Assignment Table */
750 print_ets_priority_assignment_table(ndo, tptr + 5);
751 /*Print TC Bandwidth Table */
752 print_tc_bandwidth_table(ndo, tptr + 9);
753 /* Print TSA Assignment Table */
754 print_tsa_assignment_table(ndo, tptr + 17);
755 break;
756
757 case LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION:
758 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_PFC_CONFIGURATION_LENGTH) {
759 return hexdump;
760 }
761 tval=*(tptr+4);
762 ND_PRINT((ndo, "\n\t Willing: %d, MBC: %d, RES: %d, PFC cap:%d ",
763 tval >> 7, (tval >> 6) & 0x01, (tval >> 4) & 0x03, (tval & 0x0f)));
764 ND_PRINT((ndo, "\n\t PFC Enable"));
765 tval=*(tptr+5);
766 ND_PRINT((ndo, "\n\t Priority : 0 1 2 3 4 5 6 7"));
767 ND_PRINT((ndo, "\n\t Value : "));
768 for(i=0;i<NO_OF_BITS;i++)
769 ND_PRINT((ndo, "%-2d ", (tval >> i) & 0x01));
770 break;
771
772 case LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY:
773 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH) {
774 return hexdump;
775 }
776 ND_PRINT((ndo, "\n\t RES: %d", *(tptr + 4)));
777 if(tlv_len<=LLDP_PRIVATE_8021_SUBTYPE_APPLICATION_PRIORITY_MIN_LENGTH){
778 return hexdump;
779 }
780 /* Length of Application Priority Table */
781 sublen=tlv_len-5;
782 if(sublen%3!=0){
783 return hexdump;
784 }
785 i=0;
786 ND_PRINT((ndo, "\n\t Application Priority Table"));
787 while(i<sublen) {
788 tval=*(tptr+i+5);
789 ND_PRINT((ndo, "\n\t Priority: %d, RES: %d, Sel: %d",
790 tval >> 5, (tval >> 3) & 0x03, (tval & 0x07)));
791 ND_PRINT((ndo, "Protocol ID: %d", EXTRACT_16BITS(tptr + i + 5)));
792 i=i+3;
793 }
794 break;
795 case LLDP_PRIVATE_8021_SUBTYPE_EVB:
796 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_EVB_LENGTH){
797 return hexdump;
798 }
799 ND_PRINT((ndo, "\n\t EVB Bridge Status"));
800 tval=*(tptr+4);
801 ND_PRINT((ndo, "\n\t RES: %d, BGID: %d, RRCAP: %d, RRCTR: %d",
802 tval >> 3, (tval >> 2) & 0x01, (tval >> 1) & 0x01, tval & 0x01));
803 ND_PRINT((ndo, "\n\t EVB Station Status"));
804 tval=*(tptr+5);
805 ND_PRINT((ndo, "\n\t RES: %d, SGID: %d, RRREQ: %d,RRSTAT: %d",
806 tval >> 4, (tval >> 3) & 0x01, (tval >> 2) & 0x01, tval & 0x03));
807 tval=*(tptr+6);
808 ND_PRINT((ndo, "\n\t R: %d, RTE: %d, ",tval >> 5, tval & 0x1f));
809 tval=*(tptr+7);
810 ND_PRINT((ndo, "EVB Mode: %s [%d]",
811 tok2str(lldp_evb_mode_values, "unknown", tval >> 6), tval >> 6));
812 ND_PRINT((ndo, "\n\t ROL: %d, RWD: %d, ", (tval >> 5) & 0x01, tval & 0x1f));
813 tval=*(tptr+8);
814 ND_PRINT((ndo, "RES: %d, ROL: %d, RKA: %d", tval >> 6, (tval >> 5) & 0x01, tval & 0x1f));
815 break;
816
817 case LLDP_PRIVATE_8021_SUBTYPE_CDCP:
818 if(tlv_len<LLDP_PRIVATE_8021_SUBTYPE_CDCP_MIN_LENGTH){
819 return hexdump;
820 }
821 tval=*(tptr+4);
822 ND_PRINT((ndo, "\n\t Role: %d, RES: %d, Scomp: %d ",
823 tval >> 7, (tval >> 4) & 0x07, (tval >> 3) & 0x01));
824 ND_PRINT((ndo, "ChnCap: %d", EXTRACT_16BITS(tptr + 6) & 0x0fff));
825 sublen=tlv_len-8;
826 if(sublen%3!=0) {
827 return hexdump;
828 }
829 i=0;
830 while(i<sublen) {
831 tval=EXTRACT_24BITS(tptr+i+8);
832 ND_PRINT((ndo, "\n\t SCID: %d, SVID: %d",
833 tval >> 12, tval & 0x000fff));
834 i=i+3;
835 }
836 break;
837
838 default:
839 hexdump = TRUE;
840 break;
841 }
842
843 return hexdump;
844 }
845
846 /*
847 * Print IEEE 802.3 private extensions. (802.3bc)
848 */
849 static int
850 lldp_private_8023_print(netdissect_options *ndo,
851 const u_char *tptr, u_int tlv_len)
852 {
853 int subtype, hexdump = FALSE;
854
855 if (tlv_len < 4) {
856 return hexdump;
857 }
858 subtype = *(tptr+3);
859
860 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
861 tok2str(lldp_8023_subtype_values, "unknown", subtype),
862 subtype));
863
864 switch (subtype) {
865 case LLDP_PRIVATE_8023_SUBTYPE_MACPHY:
866 if (tlv_len < 9) {
867 return hexdump;
868 }
869 ND_PRINT((ndo, "\n\t autonegotiation [%s] (0x%02x)",
870 bittok2str(lldp_8023_autonegotiation_values, "none", *(tptr+4)),
871 *(tptr + 4)));
872 ND_PRINT((ndo, "\n\t PMD autoneg capability [%s] (0x%04x)",
873 bittok2str(lldp_pmd_capability_values,"unknown", EXTRACT_16BITS(tptr+5)),
874 EXTRACT_16BITS(tptr + 5)));
875 ND_PRINT((ndo, "\n\t MAU type %s (0x%04x)",
876 tok2str(lldp_mau_types_values, "unknown", EXTRACT_16BITS(tptr+7)),
877 EXTRACT_16BITS(tptr + 7)));
878 break;
879
880 case LLDP_PRIVATE_8023_SUBTYPE_MDIPOWER:
881 if (tlv_len < 7) {
882 return hexdump;
883 }
884 ND_PRINT((ndo, "\n\t MDI power support [%s], power pair %s, power class %s",
885 bittok2str(lldp_mdi_values, "none", *(tptr+4)),
886 tok2str(lldp_mdi_power_pairs_values, "unknown", *(tptr+5)),
887 tok2str(lldp_mdi_power_class_values, "unknown", *(tptr + 6))));
888 break;
889
890 case LLDP_PRIVATE_8023_SUBTYPE_LINKAGGR:
891 if (tlv_len < 9) {
892 return hexdump;
893 }
894 ND_PRINT((ndo, "\n\t aggregation status [%s], aggregation port ID %u",
895 bittok2str(lldp_aggregation_values, "none", *(tptr+4)),
896 EXTRACT_32BITS(tptr + 5)));
897 break;
898
899 case LLDP_PRIVATE_8023_SUBTYPE_MTU:
900 ND_PRINT((ndo, "\n\t MTU size %u", EXTRACT_16BITS(tptr + 4)));
901 break;
902
903 default:
904 hexdump = TRUE;
905 break;
906 }
907
908 return hexdump;
909 }
910
911 /*
912 * Extract 34bits of latitude/longitude coordinates.
913 */
914 static uint64_t
915 lldp_extract_latlon(const u_char *tptr)
916 {
917 uint64_t latlon;
918
919 latlon = *tptr & 0x3;
920 latlon = (latlon << 32) | EXTRACT_32BITS(tptr+1);
921
922 return latlon;
923 }
924
925 /* objects defined in IANA subtype 00 00 5e
926 * (right now there is only one)
927 */
928
929
930 static int
931 lldp_private_iana_print(netdissect_options *ndo,
932 const u_char *tptr, u_int tlv_len)
933 {
934 int subtype, hexdump = FALSE;
935
936 if (tlv_len < 8) {
937 return hexdump;
938 }
939 subtype = *(tptr+3);
940
941 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
942 tok2str(lldp_iana_subtype_values, "unknown", subtype),
943 subtype));
944
945 switch (subtype) {
946 case LLDP_IANA_SUBTYPE_MUDURL:
947 ND_PRINT((ndo, "\n\t MUD-URL="));
948 (void)fn_printn(ndo, tptr+4, tlv_len-4, NULL);
949 break;
950 default:
951 hexdump=TRUE;
952 }
953
954 return hexdump;
955 }
956
957
958
959 /*
960 * Print private TIA extensions.
961 */
962 static int
963 lldp_private_tia_print(netdissect_options *ndo,
964 const u_char *tptr, u_int tlv_len)
965 {
966 int subtype, hexdump = FALSE;
967 uint8_t location_format;
968 uint16_t power_val;
969 u_int lci_len;
970 uint8_t ca_type, ca_len;
971
972 if (tlv_len < 4) {
973 return hexdump;
974 }
975 subtype = *(tptr+3);
976
977 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
978 tok2str(lldp_tia_subtype_values, "unknown", subtype),
979 subtype));
980
981 switch (subtype) {
982 case LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES:
983 if (tlv_len < 7) {
984 return hexdump;
985 }
986 ND_PRINT((ndo, "\n\t Media capabilities [%s] (0x%04x)",
987 bittok2str(lldp_tia_capabilities_values, "none",
988 EXTRACT_16BITS(tptr + 4)), EXTRACT_16BITS(tptr + 4)));
989 ND_PRINT((ndo, "\n\t Device type [%s] (0x%02x)",
990 tok2str(lldp_tia_device_type_values, "unknown", *(tptr+6)),
991 *(tptr + 6)));
992 break;
993
994 case LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY:
995 if (tlv_len < 8) {
996 return hexdump;
997 }
998 ND_PRINT((ndo, "\n\t Application type [%s] (0x%02x)",
999 tok2str(lldp_tia_application_type_values, "none", *(tptr+4)),
1000 *(tptr + 4)));
1001 ND_PRINT((ndo, ", Flags [%s]", bittok2str(
1002 lldp_tia_network_policy_bits_values, "none", *(tptr + 5))));
1003 ND_PRINT((ndo, "\n\t Vlan id %u",
1004 LLDP_EXTRACT_NETWORK_POLICY_VLAN(EXTRACT_16BITS(tptr + 5))));
1005 ND_PRINT((ndo, ", L2 priority %u",
1006 LLDP_EXTRACT_NETWORK_POLICY_L2_PRIORITY(EXTRACT_16BITS(tptr + 6))));
1007 ND_PRINT((ndo, ", DSCP value %u",
1008 LLDP_EXTRACT_NETWORK_POLICY_DSCP(EXTRACT_16BITS(tptr + 6))));
1009 break;
1010
1011 case LLDP_PRIVATE_TIA_SUBTYPE_LOCAL_ID:
1012 if (tlv_len < 5) {
1013 return hexdump;
1014 }
1015 location_format = *(tptr+4);
1016 ND_PRINT((ndo, "\n\t Location data format %s (0x%02x)",
1017 tok2str(lldp_tia_location_data_format_values, "unknown", location_format),
1018 location_format));
1019
1020 switch (location_format) {
1021 case LLDP_TIA_LOCATION_DATA_FORMAT_COORDINATE_BASED:
1022 if (tlv_len < 21) {
1023 return hexdump;
1024 }
1025 ND_PRINT((ndo, "\n\t Latitude resolution %u, latitude value %" PRIu64,
1026 (*(tptr + 5) >> 2), lldp_extract_latlon(tptr + 5)));
1027 ND_PRINT((ndo, "\n\t Longitude resolution %u, longitude value %" PRIu64,
1028 (*(tptr + 10) >> 2), lldp_extract_latlon(tptr + 10)));
1029 ND_PRINT((ndo, "\n\t Altitude type %s (%u)",
1030 tok2str(lldp_tia_location_altitude_type_values, "unknown",(*(tptr+15)>>4)),
1031 (*(tptr + 15) >> 4)));
1032 ND_PRINT((ndo, "\n\t Altitude resolution %u, altitude value 0x%x",
1033 (EXTRACT_16BITS(tptr+15)>>6)&0x3f,
1034 ((EXTRACT_32BITS(tptr + 16) & 0x3fffffff))));
1035 ND_PRINT((ndo, "\n\t Datum %s (0x%02x)",
1036 tok2str(lldp_tia_location_datum_type_values, "unknown", *(tptr+20)),
1037 *(tptr + 20)));
1038 break;
1039
1040 case LLDP_TIA_LOCATION_DATA_FORMAT_CIVIC_ADDRESS:
1041 if (tlv_len < 6) {
1042 return hexdump;
1043 }
1044 lci_len = *(tptr+5);
1045 if (lci_len < 3) {
1046 return hexdump;
1047 }
1048 if (tlv_len < 7+lci_len) {
1049 return hexdump;
1050 }
1051 ND_PRINT((ndo, "\n\t LCI length %u, LCI what %s (0x%02x), Country-code ",
1052 lci_len,
1053 tok2str(lldp_tia_location_lci_what_values, "unknown", *(tptr+6)),
1054 *(tptr + 6)));
1055
1056 /* Country code */
1057 safeputs(ndo, tptr + 7, 2);
1058
1059 lci_len = lci_len-3;
1060 tptr = tptr + 9;
1061
1062 /* Decode each civic address element */
1063 while (lci_len > 0) {
1064 if (lci_len < 2) {
1065 return hexdump;
1066 }
1067 ca_type = *(tptr);
1068 ca_len = *(tptr+1);
1069
1070 tptr += 2;
1071 lci_len -= 2;
1072
1073 ND_PRINT((ndo, "\n\t CA type \'%s\' (%u), length %u: ",
1074 tok2str(lldp_tia_location_lci_catype_values, "unknown", ca_type),
1075 ca_type, ca_len));
1076
1077 /* basic sanity check */
1078 if ( ca_type == 0 || ca_len == 0) {
1079 return hexdump;
1080 }
1081 if (lci_len < ca_len) {
1082 return hexdump;
1083 }
1084
1085 safeputs(ndo, tptr, ca_len);
1086 tptr += ca_len;
1087 lci_len -= ca_len;
1088 }
1089 break;
1090
1091 case LLDP_TIA_LOCATION_DATA_FORMAT_ECS_ELIN:
1092 ND_PRINT((ndo, "\n\t ECS ELIN id "));
1093 safeputs(ndo, tptr + 5, tlv_len - 5);
1094 break;
1095
1096 default:
1097 ND_PRINT((ndo, "\n\t Location ID "));
1098 print_unknown_data(ndo, tptr + 5, "\n\t ", tlv_len - 5);
1099 }
1100 break;
1101
1102 case LLDP_PRIVATE_TIA_SUBTYPE_EXTENDED_POWER_MDI:
1103 if (tlv_len < 7) {
1104 return hexdump;
1105 }
1106 ND_PRINT((ndo, "\n\t Power type [%s]",
1107 (*(tptr + 4) & 0xC0 >> 6) ? "PD device" : "PSE device"));
1108 ND_PRINT((ndo, ", Power source [%s]",
1109 tok2str(lldp_tia_power_source_values, "none", (*(tptr + 4) & 0x30) >> 4)));
1110 ND_PRINT((ndo, "\n\t Power priority [%s] (0x%02x)",
1111 tok2str(lldp_tia_power_priority_values, "none", *(tptr+4)&0x0f),
1112 *(tptr + 4) & 0x0f));
1113 power_val = EXTRACT_16BITS(tptr+5);
1114 if (power_val < LLDP_TIA_POWER_VAL_MAX) {
1115 ND_PRINT((ndo, ", Power %.1f Watts", ((float)power_val) / 10));
1116 } else {
1117 ND_PRINT((ndo, ", Power %u (Reserved)", power_val));
1118 }
1119 break;
1120
1121 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_HARDWARE_REV:
1122 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_FIRMWARE_REV:
1123 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SOFTWARE_REV:
1124 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_SERIAL_NUMBER:
1125 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MANUFACTURER_NAME:
1126 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_MODEL_NAME:
1127 case LLDP_PRIVATE_TIA_SUBTYPE_INVENTORY_ASSET_ID:
1128 ND_PRINT((ndo, "\n\t %s ",
1129 tok2str(lldp_tia_inventory_values, "unknown", subtype)));
1130 safeputs(ndo, tptr + 4, tlv_len - 4);
1131 break;
1132
1133 default:
1134 hexdump = TRUE;
1135 break;
1136 }
1137
1138 return hexdump;
1139 }
1140
1141 /*
1142 * Print DCBX Protocol fields (V 1.01).
1143 */
1144 static int
1145 lldp_private_dcbx_print(netdissect_options *ndo,
1146 const u_char *pptr, u_int len)
1147 {
1148 int subtype, hexdump = FALSE;
1149 uint8_t tval;
1150 uint16_t tlv;
1151 uint32_t i, pgval, uval;
1152 u_int tlen, tlv_type, tlv_len;
1153 const u_char *tptr, *mptr;
1154
1155 if (len < 4) {
1156 return hexdump;
1157 }
1158 subtype = *(pptr+3);
1159
1160 ND_PRINT((ndo, "\n\t %s Subtype (%u)",
1161 tok2str(lldp_dcbx_subtype_values, "unknown", subtype),
1162 subtype));
1163
1164 /* by passing old version */
1165 if (subtype == LLDP_DCBX_SUBTYPE_1)
1166 return TRUE;
1167
1168 tptr = pptr + 4;
1169 tlen = len - 4;
1170
1171 while (tlen >= sizeof(tlv)) {
1172
1173 ND_TCHECK2(*tptr, sizeof(tlv));
1174
1175 tlv = EXTRACT_16BITS(tptr);
1176
1177 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1178 tlv_len = LLDP_EXTRACT_LEN(tlv);
1179 hexdump = FALSE;
1180
1181 tlen -= sizeof(tlv);
1182 tptr += sizeof(tlv);
1183
1184 /* loop check */
1185 if (!tlv_type || !tlv_len) {
1186 break;
1187 }
1188
1189 ND_TCHECK2(*tptr, tlv_len);
1190 if (tlen < tlv_len) {
1191 goto trunc;
1192 }
1193
1194 /* decode every tlv */
1195 switch (tlv_type) {
1196 case LLDP_DCBX_CONTROL_TLV:
1197 if (tlv_len < 10) {
1198 goto trunc;
1199 }
1200 ND_PRINT((ndo, "\n\t Control - Protocol Control (type 0x%x, length %d)",
1201 LLDP_DCBX_CONTROL_TLV, tlv_len));
1202 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1203 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1204 ND_PRINT((ndo, "\n\t Sequence Number: %d", EXTRACT_32BITS(tptr + 2)));
1205 ND_PRINT((ndo, "\n\t Acknowledgement Number: %d",
1206 EXTRACT_32BITS(tptr + 6)));
1207 break;
1208 case LLDP_DCBX_PRIORITY_GROUPS_TLV:
1209 if (tlv_len < 17) {
1210 goto trunc;
1211 }
1212 ND_PRINT((ndo, "\n\t Feature - Priority Group (type 0x%x, length %d)",
1213 LLDP_DCBX_PRIORITY_GROUPS_TLV, tlv_len));
1214 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1215 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1216 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2)));
1217 tval = *(tptr+2);
1218 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d",
1219 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1220 (tval & 0x20) ? 1 : 0));
1221 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3)));
1222 ND_PRINT((ndo, "\n\t Priority Allocation"));
1223
1224 /*
1225 * Array of 8 4-bit priority group ID values; we fetch all
1226 * 32 bits and extract each nibble.
1227 */
1228 pgval = EXTRACT_32BITS(tptr+4);
1229 for (i = 0; i <= 7; i++) {
1230 ND_PRINT((ndo, "\n\t PgId_%d: %d",
1231 i, (pgval >> (28 - 4 * i)) & 0xF));
1232 }
1233 ND_PRINT((ndo, "\n\t Priority Group Allocation"));
1234 for (i = 0; i <= 7; i++)
1235 ND_PRINT((ndo, "\n\t Pg percentage[%d]: %d", i, *(tptr + 8 + i)));
1236 ND_PRINT((ndo, "\n\t NumTCsSupported: %d", *(tptr + 8 + 8)));
1237 break;
1238 case LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV:
1239 if (tlv_len < 6) {
1240 goto trunc;
1241 }
1242 ND_PRINT((ndo, "\n\t Feature - Priority Flow Control"));
1243 ND_PRINT((ndo, " (type 0x%x, length %d)",
1244 LLDP_DCBX_PRIORITY_FLOW_CONTROL_TLV, tlv_len));
1245 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1246 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1247 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2)));
1248 tval = *(tptr+2);
1249 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d",
1250 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1251 (tval & 0x20) ? 1 : 0));
1252 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3)));
1253 tval = *(tptr+4);
1254 ND_PRINT((ndo, "\n\t PFC Config (0x%02X)", *(tptr + 4)));
1255 for (i = 0; i <= 7; i++)
1256 ND_PRINT((ndo, "\n\t Priority Bit %d: %s",
1257 i, (tval & (1 << i)) ? "Enabled" : "Disabled"));
1258 ND_PRINT((ndo, "\n\t NumTCPFCSupported: %d", *(tptr + 5)));
1259 break;
1260 case LLDP_DCBX_APPLICATION_TLV:
1261 if (tlv_len < 4) {
1262 goto trunc;
1263 }
1264 ND_PRINT((ndo, "\n\t Feature - Application (type 0x%x, length %d)",
1265 LLDP_DCBX_APPLICATION_TLV, tlv_len));
1266 ND_PRINT((ndo, "\n\t Oper_Version: %d", *tptr));
1267 ND_PRINT((ndo, "\n\t Max_Version: %d", *(tptr + 1)));
1268 ND_PRINT((ndo, "\n\t Info block(0x%02X): ", *(tptr + 2)));
1269 tval = *(tptr+2);
1270 ND_PRINT((ndo, "Enable bit: %d, Willing bit: %d, Error Bit: %d",
1271 (tval & 0x80) ? 1 : 0, (tval & 0x40) ? 1 : 0,
1272 (tval & 0x20) ? 1 : 0));
1273 ND_PRINT((ndo, "\n\t SubType: %d", *(tptr + 3)));
1274 tval = tlv_len - 4;
1275 mptr = tptr + 4;
1276 while (tval >= 6) {
1277 ND_PRINT((ndo, "\n\t Application Value"));
1278 ND_PRINT((ndo, "\n\t Application Protocol ID: 0x%04x",
1279 EXTRACT_16BITS(mptr)));
1280 uval = EXTRACT_24BITS(mptr+2);
1281 ND_PRINT((ndo, "\n\t SF (0x%x) Application Protocol ID is %s",
1282 (uval >> 22),
1283 (uval >> 22) ? "Socket Number" : "L2 EtherType"));
1284 ND_PRINT((ndo, "\n\t OUI: 0x%06x", uval & 0x3fffff));
1285 ND_PRINT((ndo, "\n\t User Priority Map: 0x%02x", *(mptr + 5)));
1286 tval = tval - 6;
1287 mptr = mptr + 6;
1288 }
1289 break;
1290 default:
1291 hexdump = TRUE;
1292 break;
1293 }
1294
1295 /* do we also want to see a hex dump ? */
1296 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1297 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1298 }
1299
1300 tlen -= tlv_len;
1301 tptr += tlv_len;
1302 }
1303
1304 trunc:
1305 return hexdump;
1306 }
1307
1308 static char *
1309 lldp_network_addr_print(netdissect_options *ndo, const u_char *tptr, u_int len)
1310 {
1311 uint8_t af;
1312 static char buf[BUFSIZE];
1313 const char * (*pfunc)(netdissect_options *, const u_char *);
1314
1315 if (len < 1)
1316 return NULL;
1317 len--;
1318 af = *tptr;
1319 switch (af) {
1320 case AFNUM_INET:
1321 if (len < 4)
1322 return NULL;
1323 /* This cannot be assigned to ipaddr_string(), which is a macro. */
1324 pfunc = getname;
1325 break;
1326 case AFNUM_INET6:
1327 if (len < 16)
1328 return NULL;
1329 /* This cannot be assigned to ip6addr_string(), which is a macro. */
1330 pfunc = getname6;
1331 break;
1332 case AFNUM_802:
1333 if (len < 6)
1334 return NULL;
1335 pfunc = etheraddr_string;
1336 break;
1337 default:
1338 pfunc = NULL;
1339 break;
1340 }
1341
1342 if (!pfunc) {
1343 snprintf(buf, sizeof(buf), "AFI %s (%u), no AF printer !",
1344 tok2str(af_values, "Unknown", af), af);
1345 } else {
1346 snprintf(buf, sizeof(buf), "AFI %s (%u): %s",
1347 tok2str(af_values, "Unknown", af), af, (*pfunc)(ndo, tptr+1));
1348 }
1349
1350 return buf;
1351 }
1352
1353 static int
1354 lldp_mgmt_addr_tlv_print(netdissect_options *ndo,
1355 const u_char *pptr, u_int len)
1356 {
1357 uint8_t mgmt_addr_len, intf_num_subtype, oid_len;
1358 const u_char *tptr;
1359 u_int tlen;
1360 char *mgmt_addr;
1361
1362 tlen = len;
1363 tptr = pptr;
1364
1365 if (tlen < 1) {
1366 return 0;
1367 }
1368 mgmt_addr_len = *tptr++;
1369 tlen--;
1370
1371 if (tlen < mgmt_addr_len) {
1372 return 0;
1373 }
1374
1375 mgmt_addr = lldp_network_addr_print(ndo, tptr, mgmt_addr_len);
1376 if (mgmt_addr == NULL) {
1377 return 0;
1378 }
1379 ND_PRINT((ndo, "\n\t Management Address length %u, %s",
1380 mgmt_addr_len, mgmt_addr));
1381 tptr += mgmt_addr_len;
1382 tlen -= mgmt_addr_len;
1383
1384 if (tlen < LLDP_INTF_NUM_LEN) {
1385 return 0;
1386 }
1387
1388 intf_num_subtype = *tptr;
1389 ND_PRINT((ndo, "\n\t %s Interface Numbering (%u): %u",
1390 tok2str(lldp_intf_numb_subtype_values, "Unknown", intf_num_subtype),
1391 intf_num_subtype,
1392 EXTRACT_32BITS(tptr + 1)));
1393
1394 tptr += LLDP_INTF_NUM_LEN;
1395 tlen -= LLDP_INTF_NUM_LEN;
1396
1397 /*
1398 * The OID is optional.
1399 */
1400 if (tlen) {
1401 oid_len = *tptr;
1402
1403 if (tlen < oid_len) {
1404 return 0;
1405 }
1406 if (oid_len) {
1407 ND_PRINT((ndo, "\n\t OID length %u", oid_len));
1408 safeputs(ndo, tptr + 1, oid_len);
1409 }
1410 }
1411
1412 return 1;
1413 }
1414
1415 void
1416 lldp_print(netdissect_options *ndo,
1417 register const u_char *pptr, register u_int len)
1418 {
1419 uint8_t subtype;
1420 uint16_t tlv, cap, ena_cap;
1421 u_int oui, tlen, hexdump, tlv_type, tlv_len;
1422 const u_char *tptr;
1423 char *network_addr;
1424
1425 tptr = pptr;
1426 tlen = len;
1427
1428 ND_PRINT((ndo, "LLDP, length %u", len));
1429
1430 while (tlen >= sizeof(tlv)) {
1431
1432 ND_TCHECK2(*tptr, sizeof(tlv));
1433
1434 tlv = EXTRACT_16BITS(tptr);
1435
1436 tlv_type = LLDP_EXTRACT_TYPE(tlv);
1437 tlv_len = LLDP_EXTRACT_LEN(tlv);
1438 hexdump = FALSE;
1439
1440 tlen -= sizeof(tlv);
1441 tptr += sizeof(tlv);
1442
1443 if (ndo->ndo_vflag) {
1444 ND_PRINT((ndo, "\n\t%s TLV (%u), length %u",
1445 tok2str(lldp_tlv_values, "Unknown", tlv_type),
1446 tlv_type, tlv_len));
1447 }
1448
1449 /* infinite loop check */
1450 if (!tlv_type || !tlv_len) {
1451 break;
1452 }
1453
1454 ND_TCHECK2(*tptr, tlv_len);
1455 if (tlen < tlv_len) {
1456 goto trunc;
1457 }
1458
1459 switch (tlv_type) {
1460
1461 case LLDP_CHASSIS_ID_TLV:
1462 if (ndo->ndo_vflag) {
1463 if (tlv_len < 2) {
1464 goto trunc;
1465 }
1466 subtype = *tptr;
1467 ND_PRINT((ndo, "\n\t Subtype %s (%u): ",
1468 tok2str(lldp_chassis_subtype_values, "Unknown", subtype),
1469 subtype));
1470
1471 switch (subtype) {
1472 case LLDP_CHASSIS_MAC_ADDR_SUBTYPE:
1473 if (tlv_len < 1+6) {
1474 goto trunc;
1475 }
1476 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1)));
1477 break;
1478
1479 case LLDP_CHASSIS_INTF_NAME_SUBTYPE: /* fall through */
1480 case LLDP_CHASSIS_LOCAL_SUBTYPE:
1481 case LLDP_CHASSIS_CHASSIS_COMP_SUBTYPE:
1482 case LLDP_CHASSIS_INTF_ALIAS_SUBTYPE:
1483 case LLDP_CHASSIS_PORT_COMP_SUBTYPE:
1484 safeputs(ndo, tptr + 1, tlv_len - 1);
1485 break;
1486
1487 case LLDP_CHASSIS_NETWORK_ADDR_SUBTYPE:
1488 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1489 if (network_addr == NULL) {
1490 goto trunc;
1491 }
1492 ND_PRINT((ndo, "%s", network_addr));
1493 break;
1494
1495 default:
1496 hexdump = TRUE;
1497 break;
1498 }
1499 }
1500 break;
1501
1502 case LLDP_PORT_ID_TLV:
1503 if (ndo->ndo_vflag) {
1504 if (tlv_len < 2) {
1505 goto trunc;
1506 }
1507 subtype = *tptr;
1508 ND_PRINT((ndo, "\n\t Subtype %s (%u): ",
1509 tok2str(lldp_port_subtype_values, "Unknown", subtype),
1510 subtype));
1511
1512 switch (subtype) {
1513 case LLDP_PORT_MAC_ADDR_SUBTYPE:
1514 if (tlv_len < 1+6) {
1515 goto trunc;
1516 }
1517 ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr + 1)));
1518 break;
1519
1520 case LLDP_PORT_INTF_NAME_SUBTYPE: /* fall through */
1521 case LLDP_PORT_LOCAL_SUBTYPE:
1522 case LLDP_PORT_AGENT_CIRC_ID_SUBTYPE:
1523 case LLDP_PORT_INTF_ALIAS_SUBTYPE:
1524 case LLDP_PORT_PORT_COMP_SUBTYPE:
1525 safeputs(ndo, tptr + 1, tlv_len - 1);
1526 break;
1527
1528 case LLDP_PORT_NETWORK_ADDR_SUBTYPE:
1529 network_addr = lldp_network_addr_print(ndo, tptr+1, tlv_len-1);
1530 if (network_addr == NULL) {
1531 goto trunc;
1532 }
1533 ND_PRINT((ndo, "%s", network_addr));
1534 break;
1535
1536 default:
1537 hexdump = TRUE;
1538 break;
1539 }
1540 }
1541 break;
1542
1543 case LLDP_TTL_TLV:
1544 if (ndo->ndo_vflag) {
1545 if (tlv_len < 2) {
1546 goto trunc;
1547 }
1548 ND_PRINT((ndo, ": TTL %us", EXTRACT_16BITS(tptr)));
1549 }
1550 break;
1551
1552 case LLDP_PORT_DESCR_TLV:
1553 if (ndo->ndo_vflag) {
1554 ND_PRINT((ndo, ": "));
1555 safeputs(ndo, tptr, tlv_len);
1556 }
1557 break;
1558
1559 case LLDP_SYSTEM_NAME_TLV:
1560 /*
1561 * The system name is also print in non-verbose mode
1562 * similar to the CDP printer.
1563 */
1564 ND_PRINT((ndo, ": "));
1565 safeputs(ndo, tptr, tlv_len);
1566 break;
1567
1568 case LLDP_SYSTEM_DESCR_TLV:
1569 if (ndo->ndo_vflag) {
1570 ND_PRINT((ndo, "\n\t "));
1571 safeputs(ndo, tptr, tlv_len);
1572 }
1573 break;
1574
1575 case LLDP_SYSTEM_CAP_TLV:
1576 if (ndo->ndo_vflag) {
1577 /*
1578 * XXX - IEEE Std 802.1AB-2009 says the first octet
1579 * if a chassis ID subtype, with the system
1580 * capabilities and enabled capabilities following
1581 * it.
1582 */
1583 if (tlv_len < 4) {
1584 goto trunc;
1585 }
1586 cap = EXTRACT_16BITS(tptr);
1587 ena_cap = EXTRACT_16BITS(tptr+2);
1588 ND_PRINT((ndo, "\n\t System Capabilities [%s] (0x%04x)",
1589 bittok2str(lldp_cap_values, "none", cap), cap));
1590 ND_PRINT((ndo, "\n\t Enabled Capabilities [%s] (0x%04x)",
1591 bittok2str(lldp_cap_values, "none", ena_cap), ena_cap));
1592 }
1593 break;
1594
1595 case LLDP_MGMT_ADDR_TLV:
1596 if (ndo->ndo_vflag) {
1597 if (!lldp_mgmt_addr_tlv_print(ndo, tptr, tlv_len)) {
1598 goto trunc;
1599 }
1600 }
1601 break;
1602
1603 case LLDP_PRIVATE_TLV:
1604 if (ndo->ndo_vflag) {
1605 if (tlv_len < 3) {
1606 goto trunc;
1607 }
1608 oui = EXTRACT_24BITS(tptr);
1609 ND_PRINT((ndo, ": OUI %s (0x%06x)", tok2str(oui_values, "Unknown", oui), oui));
1610
1611 switch (oui) {
1612 case OUI_IEEE_8021_PRIVATE:
1613 hexdump = lldp_private_8021_print(ndo, tptr, tlv_len);
1614 break;
1615 case OUI_IEEE_8023_PRIVATE:
1616 hexdump = lldp_private_8023_print(ndo, tptr, tlv_len);
1617 break;
1618 case OUI_IANA:
1619 hexdump = lldp_private_iana_print(ndo, tptr, tlv_len);
1620 break;
1621 case OUI_TIA:
1622 hexdump = lldp_private_tia_print(ndo, tptr, tlv_len);
1623 break;
1624 case OUI_DCBX:
1625 hexdump = lldp_private_dcbx_print(ndo, tptr, tlv_len);
1626 break;
1627 default:
1628 hexdump = TRUE;
1629 break;
1630 }
1631 }
1632 break;
1633
1634 default:
1635 hexdump = TRUE;
1636 break;
1637 }
1638
1639 /* do we also want to see a hex dump ? */
1640 if (ndo->ndo_vflag > 1 || (ndo->ndo_vflag && hexdump)) {
1641 print_unknown_data(ndo, tptr, "\n\t ", tlv_len);
1642 }
1643
1644 tlen -= tlv_len;
1645 tptr += tlv_len;
1646 }
1647 return;
1648 trunc:
1649 ND_PRINT((ndo, "\n\t[|LLDP]"));
1650 }
1651
1652 /*
1653 * Local Variables:
1654 * c-style: whitesmith
1655 * c-basic-offset: 4
1656 * End:
1657 */