1 /* NetBSD: print-juniper.c,v 1.2 2007/07/24 11:53:45 drochner Exp */
2
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 */
17
18 /* \summary: DLT_JUNIPER_* printers */
19
20 #ifndef lint
21 #else
22 __RCSID("NetBSD: print-juniper.c,v 1.3 2007/07/25 06:31:32 dogcow Exp ");
23 #endif
24
25 #ifdef HAVE_CONFIG_H
26 #include <config.h>
27 #endif
28
29 #include "netdissect-stdinc.h"
30
31 #include <string.h>
32
33 #include "netdissect.h"
34 #include "addrtoname.h"
35 #include "extract.h"
36 #include "ppp.h"
37 #include "llc.h"
38 #include "nlpid.h"
39 #include "ethertype.h"
40 #include "atm.h"
41
42 /*
43 * If none of the Juniper DLT_s are defined, there's nothing to do.
44 */
45 #if defined(DLT_JUNIPER_GGSN) || defined(DLT_JUNIPER_ES) || \
46 defined(DLT_JUNIPER_MONITOR) || defined(DLT_JUNIPER_SERVICES) || \
47 defined(DLT_JUNIPER_PPPOE) || defined(DLT_JUNIPER_ETHER) || \
48 defined(DLT_JUNIPER_PPP) || defined(DLT_JUNIPER_FRELAY) || \
49 defined(DLT_JUNIPER_CHDLC) || defined(DLT_JUNIPER_PPPOE_ATM) || \
50 defined(DLT_JUNIPER_MLPPP) || defined(DLT_JUNIPER_MFR) || \
51 defined(DLT_JUNIPER_MLFR) || defined(DLT_JUNIPER_ATM1) || \
52 defined(DLT_JUNIPER_ATM2)
53 #define JUNIPER_BPF_OUT 0 /* Outgoing packet */
54 #define JUNIPER_BPF_IN 1 /* Incoming packet */
55 #define JUNIPER_BPF_PKT_IN 0x1 /* Incoming packet */
56 #define JUNIPER_BPF_NO_L2 0x2 /* L2 header stripped */
57 #define JUNIPER_BPF_IIF 0x4 /* IIF is valid */
58 #define JUNIPER_BPF_FILTER 0x40 /* BPF filtering is supported */
59 #define JUNIPER_BPF_EXT 0x80 /* extensions present */
60 #define JUNIPER_MGC_NUMBER 0x4d4743 /* = "MGC" */
61
62 #define JUNIPER_LSQ_COOKIE_RE (1 << 3)
63 #define JUNIPER_LSQ_COOKIE_DIR (1 << 2)
64 #define JUNIPER_LSQ_L3_PROTO_SHIFT 4
65 #define JUNIPER_LSQ_L3_PROTO_MASK (0x17 << JUNIPER_LSQ_L3_PROTO_SHIFT)
66 #define JUNIPER_LSQ_L3_PROTO_IPV4 (0 << JUNIPER_LSQ_L3_PROTO_SHIFT)
67 #define JUNIPER_LSQ_L3_PROTO_IPV6 (1 << JUNIPER_LSQ_L3_PROTO_SHIFT)
68 #define JUNIPER_LSQ_L3_PROTO_MPLS (2 << JUNIPER_LSQ_L3_PROTO_SHIFT)
69 #define JUNIPER_LSQ_L3_PROTO_ISO (3 << JUNIPER_LSQ_L3_PROTO_SHIFT)
70 #define AS_PIC_COOKIE_LEN 8
71
72 #define JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE 1
73 #define JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE 2
74 #define JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE 3
75 #define JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE 4
76 #define JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE 5
77
78 #ifdef DLT_JUNIPER_ES
79 static const struct tok juniper_ipsec_type_values[] = {
80 { JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE, "ESP ENCR-AUTH" },
81 { JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE, "ESP ENCR-AH AUTH" },
82 { JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE, "ESP AUTH" },
83 { JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE, "AH AUTH" },
84 { JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE, "ESP ENCR" },
85 { 0, NULL}
86 };
87 #endif
88
89 static const struct tok juniper_direction_values[] = {
90 { JUNIPER_BPF_IN, "In"},
91 { JUNIPER_BPF_OUT, "Out"},
92 { 0, NULL}
93 };
94
95 /* codepoints for encoding extensions to a .pcap file */
96 enum {
97 JUNIPER_EXT_TLV_IFD_IDX = 1,
98 JUNIPER_EXT_TLV_IFD_NAME = 2,
99 JUNIPER_EXT_TLV_IFD_MEDIATYPE = 3,
100 JUNIPER_EXT_TLV_IFL_IDX = 4,
101 JUNIPER_EXT_TLV_IFL_UNIT = 5,
102 JUNIPER_EXT_TLV_IFL_ENCAPS = 6,
103 JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE = 7,
104 JUNIPER_EXT_TLV_TTP_IFL_ENCAPS = 8
105 };
106
107 /* 1 byte type and 1-byte length */
108 #define JUNIPER_EXT_TLV_OVERHEAD 2U
109
110 static const struct tok jnx_ext_tlv_values[] = {
111 { JUNIPER_EXT_TLV_IFD_IDX, "Device Interface Index" },
112 { JUNIPER_EXT_TLV_IFD_NAME,"Device Interface Name" },
113 { JUNIPER_EXT_TLV_IFD_MEDIATYPE, "Device Media Type" },
114 { JUNIPER_EXT_TLV_IFL_IDX, "Logical Interface Index" },
115 { JUNIPER_EXT_TLV_IFL_UNIT,"Logical Unit Number" },
116 { JUNIPER_EXT_TLV_IFL_ENCAPS, "Logical Interface Encapsulation" },
117 { JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE, "TTP derived Device Media Type" },
118 { JUNIPER_EXT_TLV_TTP_IFL_ENCAPS, "TTP derived Logical Interface Encapsulation" },
119 { 0, NULL }
120 };
121
122 static const struct tok jnx_flag_values[] = {
123 { JUNIPER_BPF_EXT, "Ext" },
124 { JUNIPER_BPF_FILTER, "Filter" },
125 { JUNIPER_BPF_IIF, "IIF" },
126 { JUNIPER_BPF_NO_L2, "no-L2" },
127 { JUNIPER_BPF_PKT_IN, "In" },
128 { 0, NULL }
129 };
130
131 #define JUNIPER_IFML_ETHER 1
132 #define JUNIPER_IFML_FDDI 2
133 #define JUNIPER_IFML_TOKENRING 3
134 #define JUNIPER_IFML_PPP 4
135 #define JUNIPER_IFML_FRAMERELAY 5
136 #define JUNIPER_IFML_CISCOHDLC 6
137 #define JUNIPER_IFML_SMDSDXI 7
138 #define JUNIPER_IFML_ATMPVC 8
139 #define JUNIPER_IFML_PPP_CCC 9
140 #define JUNIPER_IFML_FRAMERELAY_CCC 10
141 #define JUNIPER_IFML_IPIP 11
142 #define JUNIPER_IFML_GRE 12
143 #define JUNIPER_IFML_PIM 13
144 #define JUNIPER_IFML_PIMD 14
145 #define JUNIPER_IFML_CISCOHDLC_CCC 15
146 #define JUNIPER_IFML_VLAN_CCC 16
147 #define JUNIPER_IFML_MLPPP 17
148 #define JUNIPER_IFML_MLFR 18
149 #define JUNIPER_IFML_ML 19
150 #define JUNIPER_IFML_LSI 20
151 #define JUNIPER_IFML_DFE 21
152 #define JUNIPER_IFML_ATM_CELLRELAY_CCC 22
153 #define JUNIPER_IFML_CRYPTO 23
154 #define JUNIPER_IFML_GGSN 24
155 #define JUNIPER_IFML_LSI_PPP 25
156 #define JUNIPER_IFML_LSI_CISCOHDLC 26
157 #define JUNIPER_IFML_PPP_TCC 27
158 #define JUNIPER_IFML_FRAMERELAY_TCC 28
159 #define JUNIPER_IFML_CISCOHDLC_TCC 29
160 #define JUNIPER_IFML_ETHERNET_CCC 30
161 #define JUNIPER_IFML_VT 31
162 #define JUNIPER_IFML_EXTENDED_VLAN_CCC 32
163 #define JUNIPER_IFML_ETHER_OVER_ATM 33
164 #define JUNIPER_IFML_MONITOR 34
165 #define JUNIPER_IFML_ETHERNET_TCC 35
166 #define JUNIPER_IFML_VLAN_TCC 36
167 #define JUNIPER_IFML_EXTENDED_VLAN_TCC 37
168 #define JUNIPER_IFML_CONTROLLER 38
169 #define JUNIPER_IFML_MFR 39
170 #define JUNIPER_IFML_LS 40
171 #define JUNIPER_IFML_ETHERNET_VPLS 41
172 #define JUNIPER_IFML_ETHERNET_VLAN_VPLS 42
173 #define JUNIPER_IFML_ETHERNET_EXTENDED_VLAN_VPLS 43
174 #define JUNIPER_IFML_LT 44
175 #define JUNIPER_IFML_SERVICES 45
176 #define JUNIPER_IFML_ETHER_VPLS_OVER_ATM 46
177 #define JUNIPER_IFML_FR_PORT_CCC 47
178 #define JUNIPER_IFML_FRAMERELAY_EXT_CCC 48
179 #define JUNIPER_IFML_FRAMERELAY_EXT_TCC 49
180 #define JUNIPER_IFML_FRAMERELAY_FLEX 50
181 #define JUNIPER_IFML_GGSNI 51
182 #define JUNIPER_IFML_ETHERNET_FLEX 52
183 #define JUNIPER_IFML_COLLECTOR 53
184 #define JUNIPER_IFML_AGGREGATOR 54
185 #define JUNIPER_IFML_LAPD 55
186 #define JUNIPER_IFML_PPPOE 56
187 #define JUNIPER_IFML_PPP_SUBORDINATE 57
188 #define JUNIPER_IFML_CISCOHDLC_SUBORDINATE 58
189 #define JUNIPER_IFML_DFC 59
190 #define JUNIPER_IFML_PICPEER 60
191
192 static const struct tok juniper_ifmt_values[] = {
193 { JUNIPER_IFML_ETHER, "Ethernet" },
194 { JUNIPER_IFML_FDDI, "FDDI" },
195 { JUNIPER_IFML_TOKENRING, "Token-Ring" },
196 { JUNIPER_IFML_PPP, "PPP" },
197 { JUNIPER_IFML_PPP_SUBORDINATE, "PPP-Subordinate" },
198 { JUNIPER_IFML_FRAMERELAY, "Frame-Relay" },
199 { JUNIPER_IFML_CISCOHDLC, "Cisco-HDLC" },
200 { JUNIPER_IFML_SMDSDXI, "SMDS-DXI" },
201 { JUNIPER_IFML_ATMPVC, "ATM-PVC" },
202 { JUNIPER_IFML_PPP_CCC, "PPP-CCC" },
203 { JUNIPER_IFML_FRAMERELAY_CCC, "Frame-Relay-CCC" },
204 { JUNIPER_IFML_FRAMERELAY_EXT_CCC, "Extended FR-CCC" },
205 { JUNIPER_IFML_IPIP, "IP-over-IP" },
206 { JUNIPER_IFML_GRE, "GRE" },
207 { JUNIPER_IFML_PIM, "PIM-Encapsulator" },
208 { JUNIPER_IFML_PIMD, "PIM-Decapsulator" },
209 { JUNIPER_IFML_CISCOHDLC_CCC, "Cisco-HDLC-CCC" },
210 { JUNIPER_IFML_VLAN_CCC, "VLAN-CCC" },
211 { JUNIPER_IFML_EXTENDED_VLAN_CCC, "Extended-VLAN-CCC" },
212 { JUNIPER_IFML_MLPPP, "Multilink-PPP" },
213 { JUNIPER_IFML_MLFR, "Multilink-FR" },
214 { JUNIPER_IFML_MFR, "Multilink-FR-UNI-NNI" },
215 { JUNIPER_IFML_ML, "Multilink" },
216 { JUNIPER_IFML_LS, "LinkService" },
217 { JUNIPER_IFML_LSI, "LSI" },
218 { JUNIPER_IFML_ATM_CELLRELAY_CCC, "ATM-CCC-Cell-Relay" },
219 { JUNIPER_IFML_CRYPTO, "IPSEC-over-IP" },
220 { JUNIPER_IFML_GGSN, "GGSN" },
221 { JUNIPER_IFML_PPP_TCC, "PPP-TCC" },
222 { JUNIPER_IFML_FRAMERELAY_TCC, "Frame-Relay-TCC" },
223 { JUNIPER_IFML_FRAMERELAY_EXT_TCC, "Extended FR-TCC" },
224 { JUNIPER_IFML_CISCOHDLC_TCC, "Cisco-HDLC-TCC" },
225 { JUNIPER_IFML_ETHERNET_CCC, "Ethernet-CCC" },
226 { JUNIPER_IFML_VT, "VPN-Loopback-tunnel" },
227 { JUNIPER_IFML_ETHER_OVER_ATM, "Ethernet-over-ATM" },
228 { JUNIPER_IFML_ETHER_VPLS_OVER_ATM, "Ethernet-VPLS-over-ATM" },
229 { JUNIPER_IFML_MONITOR, "Monitor" },
230 { JUNIPER_IFML_ETHERNET_TCC, "Ethernet-TCC" },
231 { JUNIPER_IFML_VLAN_TCC, "VLAN-TCC" },
232 { JUNIPER_IFML_EXTENDED_VLAN_TCC, "Extended-VLAN-TCC" },
233 { JUNIPER_IFML_CONTROLLER, "Controller" },
234 { JUNIPER_IFML_ETHERNET_VPLS, "VPLS" },
235 { JUNIPER_IFML_ETHERNET_VLAN_VPLS, "VLAN-VPLS" },
236 { JUNIPER_IFML_ETHERNET_EXTENDED_VLAN_VPLS, "Extended-VLAN-VPLS" },
237 { JUNIPER_IFML_LT, "Logical-tunnel" },
238 { JUNIPER_IFML_SERVICES, "General-Services" },
239 { JUNIPER_IFML_PPPOE, "PPPoE" },
240 { JUNIPER_IFML_ETHERNET_FLEX, "Flexible-Ethernet-Services" },
241 { JUNIPER_IFML_FRAMERELAY_FLEX, "Flexible-FrameRelay" },
242 { JUNIPER_IFML_COLLECTOR, "Flow-collection" },
243 { JUNIPER_IFML_PICPEER, "PIC Peer" },
244 { JUNIPER_IFML_DFC, "Dynamic-Flow-Capture" },
245 {0, NULL}
246 };
247
248 #define JUNIPER_IFLE_ATM_SNAP 2
249 #define JUNIPER_IFLE_ATM_NLPID 3
250 #define JUNIPER_IFLE_ATM_VCMUX 4
251 #define JUNIPER_IFLE_ATM_LLC 5
252 #define JUNIPER_IFLE_ATM_PPP_VCMUX 6
253 #define JUNIPER_IFLE_ATM_PPP_LLC 7
254 #define JUNIPER_IFLE_ATM_PPP_FUNI 8
255 #define JUNIPER_IFLE_ATM_CCC 9
256 #define JUNIPER_IFLE_FR_NLPID 10
257 #define JUNIPER_IFLE_FR_SNAP 11
258 #define JUNIPER_IFLE_FR_PPP 12
259 #define JUNIPER_IFLE_FR_CCC 13
260 #define JUNIPER_IFLE_ENET2 14
261 #define JUNIPER_IFLE_IEEE8023_SNAP 15
262 #define JUNIPER_IFLE_IEEE8023_LLC 16
263 #define JUNIPER_IFLE_PPP 17
264 #define JUNIPER_IFLE_CISCOHDLC 18
265 #define JUNIPER_IFLE_PPP_CCC 19
266 #define JUNIPER_IFLE_IPIP_NULL 20
267 #define JUNIPER_IFLE_PIM_NULL 21
268 #define JUNIPER_IFLE_GRE_NULL 22
269 #define JUNIPER_IFLE_GRE_PPP 23
270 #define JUNIPER_IFLE_PIMD_DECAPS 24
271 #define JUNIPER_IFLE_CISCOHDLC_CCC 25
272 #define JUNIPER_IFLE_ATM_CISCO_NLPID 26
273 #define JUNIPER_IFLE_VLAN_CCC 27
274 #define JUNIPER_IFLE_MLPPP 28
275 #define JUNIPER_IFLE_MLFR 29
276 #define JUNIPER_IFLE_LSI_NULL 30
277 #define JUNIPER_IFLE_AGGREGATE_UNUSED 31
278 #define JUNIPER_IFLE_ATM_CELLRELAY_CCC 32
279 #define JUNIPER_IFLE_CRYPTO 33
280 #define JUNIPER_IFLE_GGSN 34
281 #define JUNIPER_IFLE_ATM_TCC 35
282 #define JUNIPER_IFLE_FR_TCC 36
283 #define JUNIPER_IFLE_PPP_TCC 37
284 #define JUNIPER_IFLE_CISCOHDLC_TCC 38
285 #define JUNIPER_IFLE_ETHERNET_CCC 39
286 #define JUNIPER_IFLE_VT 40
287 #define JUNIPER_IFLE_ATM_EOA_LLC 41
288 #define JUNIPER_IFLE_EXTENDED_VLAN_CCC 42
289 #define JUNIPER_IFLE_ATM_SNAP_TCC 43
290 #define JUNIPER_IFLE_MONITOR 44
291 #define JUNIPER_IFLE_ETHERNET_TCC 45
292 #define JUNIPER_IFLE_VLAN_TCC 46
293 #define JUNIPER_IFLE_EXTENDED_VLAN_TCC 47
294 #define JUNIPER_IFLE_MFR 48
295 #define JUNIPER_IFLE_ETHERNET_VPLS 49
296 #define JUNIPER_IFLE_ETHERNET_VLAN_VPLS 50
297 #define JUNIPER_IFLE_ETHERNET_EXTENDED_VLAN_VPLS 51
298 #define JUNIPER_IFLE_SERVICES 52
299 #define JUNIPER_IFLE_ATM_ETHER_VPLS_ATM_LLC 53
300 #define JUNIPER_IFLE_FR_PORT_CCC 54
301 #define JUNIPER_IFLE_ATM_MLPPP_LLC 55
302 #define JUNIPER_IFLE_ATM_EOA_CCC 56
303 #define JUNIPER_IFLE_LT_VLAN 57
304 #define JUNIPER_IFLE_COLLECTOR 58
305 #define JUNIPER_IFLE_AGGREGATOR 59
306 #define JUNIPER_IFLE_LAPD 60
307 #define JUNIPER_IFLE_ATM_PPPOE_LLC 61
308 #define JUNIPER_IFLE_ETHERNET_PPPOE 62
309 #define JUNIPER_IFLE_PPPOE 63
310 #define JUNIPER_IFLE_PPP_SUBORDINATE 64
311 #define JUNIPER_IFLE_CISCOHDLC_SUBORDINATE 65
312 #define JUNIPER_IFLE_DFC 66
313 #define JUNIPER_IFLE_PICPEER 67
314
315 static const struct tok juniper_ifle_values[] = {
316 { JUNIPER_IFLE_AGGREGATOR, "Aggregator" },
317 { JUNIPER_IFLE_ATM_CCC, "CCC over ATM" },
318 { JUNIPER_IFLE_ATM_CELLRELAY_CCC, "ATM CCC Cell Relay" },
319 { JUNIPER_IFLE_ATM_CISCO_NLPID, "CISCO compatible NLPID" },
320 { JUNIPER_IFLE_ATM_EOA_CCC, "Ethernet over ATM CCC" },
321 { JUNIPER_IFLE_ATM_EOA_LLC, "Ethernet over ATM LLC" },
322 { JUNIPER_IFLE_ATM_ETHER_VPLS_ATM_LLC, "Ethernet VPLS over ATM LLC" },
323 { JUNIPER_IFLE_ATM_LLC, "ATM LLC" },
324 { JUNIPER_IFLE_ATM_MLPPP_LLC, "MLPPP over ATM LLC" },
325 { JUNIPER_IFLE_ATM_NLPID, "ATM NLPID" },
326 { JUNIPER_IFLE_ATM_PPPOE_LLC, "PPPoE over ATM LLC" },
327 { JUNIPER_IFLE_ATM_PPP_FUNI, "PPP over FUNI" },
328 { JUNIPER_IFLE_ATM_PPP_LLC, "PPP over ATM LLC" },
329 { JUNIPER_IFLE_ATM_PPP_VCMUX, "PPP over ATM VCMUX" },
330 { JUNIPER_IFLE_ATM_SNAP, "ATM SNAP" },
331 { JUNIPER_IFLE_ATM_SNAP_TCC, "ATM SNAP TCC" },
332 { JUNIPER_IFLE_ATM_TCC, "ATM VCMUX TCC" },
333 { JUNIPER_IFLE_ATM_VCMUX, "ATM VCMUX" },
334 { JUNIPER_IFLE_CISCOHDLC, "C-HDLC" },
335 { JUNIPER_IFLE_CISCOHDLC_CCC, "C-HDLC CCC" },
336 { JUNIPER_IFLE_CISCOHDLC_SUBORDINATE, "C-HDLC via dialer" },
337 { JUNIPER_IFLE_CISCOHDLC_TCC, "C-HDLC TCC" },
338 { JUNIPER_IFLE_COLLECTOR, "Collector" },
339 { JUNIPER_IFLE_CRYPTO, "Crypto" },
340 { JUNIPER_IFLE_ENET2, "Ethernet" },
341 { JUNIPER_IFLE_ETHERNET_CCC, "Ethernet CCC" },
342 { JUNIPER_IFLE_ETHERNET_EXTENDED_VLAN_VPLS, "Extended VLAN VPLS" },
343 { JUNIPER_IFLE_ETHERNET_PPPOE, "PPPoE over Ethernet" },
344 { JUNIPER_IFLE_ETHERNET_TCC, "Ethernet TCC" },
345 { JUNIPER_IFLE_ETHERNET_VLAN_VPLS, "VLAN VPLS" },
346 { JUNIPER_IFLE_ETHERNET_VPLS, "VPLS" },
347 { JUNIPER_IFLE_EXTENDED_VLAN_CCC, "Extended VLAN CCC" },
348 { JUNIPER_IFLE_EXTENDED_VLAN_TCC, "Extended VLAN TCC" },
349 { JUNIPER_IFLE_FR_CCC, "FR CCC" },
350 { JUNIPER_IFLE_FR_NLPID, "FR NLPID" },
351 { JUNIPER_IFLE_FR_PORT_CCC, "FR CCC" },
352 { JUNIPER_IFLE_FR_PPP, "FR PPP" },
353 { JUNIPER_IFLE_FR_SNAP, "FR SNAP" },
354 { JUNIPER_IFLE_FR_TCC, "FR TCC" },
355 { JUNIPER_IFLE_GGSN, "GGSN" },
356 { JUNIPER_IFLE_GRE_NULL, "GRE NULL" },
357 { JUNIPER_IFLE_GRE_PPP, "PPP over GRE" },
358 { JUNIPER_IFLE_IPIP_NULL, "IPIP" },
359 { JUNIPER_IFLE_LAPD, "LAPD" },
360 { JUNIPER_IFLE_LSI_NULL, "LSI Null" },
361 { JUNIPER_IFLE_LT_VLAN, "LT VLAN" },
362 { JUNIPER_IFLE_MFR, "MFR" },
363 { JUNIPER_IFLE_MLFR, "MLFR" },
364 { JUNIPER_IFLE_MLPPP, "MLPPP" },
365 { JUNIPER_IFLE_MONITOR, "Monitor" },
366 { JUNIPER_IFLE_PIMD_DECAPS, "PIMd" },
367 { JUNIPER_IFLE_PIM_NULL, "PIM Null" },
368 { JUNIPER_IFLE_PPP, "PPP" },
369 { JUNIPER_IFLE_PPPOE, "PPPoE" },
370 { JUNIPER_IFLE_PPP_CCC, "PPP CCC" },
371 { JUNIPER_IFLE_PPP_SUBORDINATE, "" },
372 { JUNIPER_IFLE_PPP_TCC, "PPP TCC" },
373 { JUNIPER_IFLE_SERVICES, "General Services" },
374 { JUNIPER_IFLE_VLAN_CCC, "VLAN CCC" },
375 { JUNIPER_IFLE_VLAN_TCC, "VLAN TCC" },
376 { JUNIPER_IFLE_VT, "VT" },
377 {0, NULL}
378 };
379
380 struct juniper_cookie_table_t {
381 uint32_t pictype; /* pic type */
382 uint8_t cookie_len; /* cookie len */
383 const char *s; /* pic name */
384 };
385
386 static const struct juniper_cookie_table_t juniper_cookie_table[] = {
387 #ifdef DLT_JUNIPER_ATM1
388 { DLT_JUNIPER_ATM1, 4, "ATM1"},
389 #endif
390 #ifdef DLT_JUNIPER_ATM2
391 { DLT_JUNIPER_ATM2, 8, "ATM2"},
392 #endif
393 #ifdef DLT_JUNIPER_MLPPP
394 { DLT_JUNIPER_MLPPP, 2, "MLPPP"},
395 #endif
396 #ifdef DLT_JUNIPER_MLFR
397 { DLT_JUNIPER_MLFR, 2, "MLFR"},
398 #endif
399 #ifdef DLT_JUNIPER_MFR
400 { DLT_JUNIPER_MFR, 4, "MFR"},
401 #endif
402 #ifdef DLT_JUNIPER_PPPOE
403 { DLT_JUNIPER_PPPOE, 0, "PPPoE"},
404 #endif
405 #ifdef DLT_JUNIPER_PPPOE_ATM
406 { DLT_JUNIPER_PPPOE_ATM, 0, "PPPoE ATM"},
407 #endif
408 #ifdef DLT_JUNIPER_GGSN
409 { DLT_JUNIPER_GGSN, 8, "GGSN"},
410 #endif
411 #ifdef DLT_JUNIPER_MONITOR
412 { DLT_JUNIPER_MONITOR, 8, "MONITOR"},
413 #endif
414 #ifdef DLT_JUNIPER_SERVICES
415 { DLT_JUNIPER_SERVICES, 8, "AS"},
416 #endif
417 #ifdef DLT_JUNIPER_ES
418 { DLT_JUNIPER_ES, 0, "ES"},
419 #endif
420 { 0, 0, NULL }
421 };
422
423 struct juniper_l2info_t {
424 uint32_t length;
425 uint32_t caplen;
426 uint32_t pictype;
427 uint8_t direction;
428 u_int header_len;
429 uint8_t cookie_len;
430 uint8_t cookie_type;
431 uint8_t cookie[8];
432 u_int bundle;
433 uint16_t proto;
434 uint8_t flags;
435 };
436
437 #define LS_COOKIE_ID 0x54
438 #define AS_COOKIE_ID 0x47
439 #define LS_MLFR_COOKIE_LEN 4
440 #define ML_MLFR_COOKIE_LEN 2
441 #define LS_MFR_COOKIE_LEN 6
442 #define ATM1_COOKIE_LEN 4
443 #define ATM2_COOKIE_LEN 8
444
445 #define ATM2_PKT_TYPE_MASK 0x70
446 #define ATM2_GAP_COUNT_MASK 0x3F
447
448 #define JUNIPER_PROTO_NULL 1
449 #define JUNIPER_PROTO_IPV4 2
450 #define JUNIPER_PROTO_IPV6 6
451
452 #define MFR_BE_MASK 0xc0
453
454 #ifdef DLT_JUNIPER_GGSN
455 static const struct tok juniper_protocol_values[] = {
456 { JUNIPER_PROTO_NULL, "Null" },
457 { JUNIPER_PROTO_IPV4, "IPv4" },
458 { JUNIPER_PROTO_IPV6, "IPv6" },
459 { 0, NULL}
460 };
461 #endif
462
463 static int ip_heuristic_guess(netdissect_options *, const u_char *, u_int);
464 #ifdef DLT_JUNIPER_ATM2
465 static int juniper_ppp_heuristic_guess(netdissect_options *, const u_char *, u_int);
466 #endif
467 static int juniper_parse_header(netdissect_options *, const u_char *, const struct pcap_pkthdr *, struct juniper_l2info_t *);
468
469 #ifdef DLT_JUNIPER_GGSN
470 void
juniper_ggsn_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)471 juniper_ggsn_if_print(netdissect_options *ndo,
472 const struct pcap_pkthdr *h, const u_char *p)
473 {
474 struct juniper_l2info_t l2info;
475 struct juniper_ggsn_header {
476 nd_uint8_t svc_id;
477 nd_uint8_t flags_len;
478 nd_uint8_t proto;
479 nd_uint8_t flags;
480 nd_uint16_t vlan_id;
481 nd_byte res[2];
482 };
483 const struct juniper_ggsn_header *gh;
484 uint8_t proto;
485
486 ndo->ndo_protocol = "juniper_ggsn";
487 memset(&l2info, 0, sizeof(l2info));
488 l2info.pictype = DLT_JUNIPER_GGSN;
489 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
490 ndo->ndo_ll_hdr_len += l2info.header_len;
491 return;
492 }
493
494 p+=l2info.header_len;
495 gh = (struct juniper_ggsn_header *)&l2info.cookie;
496
497 ND_TCHECK_SIZE(gh);
498 proto = GET_U_1(gh->proto);
499 if (ndo->ndo_eflag) {
500 ND_PRINT("proto %s (%u), vlan %u: ",
501 tok2str(juniper_protocol_values,"Unknown",proto),
502 proto,
503 GET_BE_U_2(gh->vlan_id));
504 }
505
506 switch (proto) {
507 case JUNIPER_PROTO_IPV4:
508 ip_print(ndo, p, l2info.length);
509 break;
510 case JUNIPER_PROTO_IPV6:
511 ip6_print(ndo, p, l2info.length);
512 break;
513 default:
514 if (!ndo->ndo_eflag)
515 ND_PRINT("unknown GGSN proto (%u)", proto);
516 }
517
518 ndo->ndo_ll_hdr_len += l2info.header_len;
519 return;
520
521 trunc:
522 nd_print_trunc(ndo);
523 ndo->ndo_ll_hdr_len += l2info.header_len;
524 }
525 #endif
526
527 #ifdef DLT_JUNIPER_ES
528 void
juniper_es_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)529 juniper_es_if_print(netdissect_options *ndo,
530 const struct pcap_pkthdr *h, const u_char *p)
531 {
532 struct juniper_l2info_t l2info;
533 struct juniper_ipsec_header {
534 nd_uint16_t sa_index;
535 nd_uint8_t ttl;
536 nd_uint8_t type;
537 nd_uint32_t spi;
538 nd_ipv4 src_ip;
539 nd_ipv4 dst_ip;
540 };
541 u_int rewrite_len,es_type_bundle;
542 const struct juniper_ipsec_header *ih;
543
544 ndo->ndo_protocol = "juniper_es";
545 memset(&l2info, 0, sizeof(l2info));
546 l2info.pictype = DLT_JUNIPER_ES;
547 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
548 ndo->ndo_ll_hdr_len += l2info.header_len;
549 return;
550 }
551
552 p+=l2info.header_len;
553 ih = (const struct juniper_ipsec_header *)p;
554
555 ND_TCHECK_SIZE(ih);
556 switch (GET_U_1(ih->type)) {
557 case JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE:
558 case JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE:
559 rewrite_len = 0;
560 es_type_bundle = 1;
561 break;
562 case JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE:
563 case JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE:
564 case JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE:
565 rewrite_len = 16;
566 es_type_bundle = 0;
567 break;
568 default:
569 ND_PRINT("ES Invalid type %u, length %u",
570 GET_U_1(ih->type),
571 l2info.length);
572 ndo->ndo_ll_hdr_len += l2info.header_len;
573 return;
574 }
575
576 l2info.length-=rewrite_len;
577 p+=rewrite_len;
578
579 if (ndo->ndo_eflag) {
580 if (!es_type_bundle) {
581 ND_PRINT("ES SA, index %u, ttl %u type %s (%u), spi %u, Tunnel %s > %s, length %u\n",
582 GET_BE_U_2(ih->sa_index),
583 GET_U_1(ih->ttl),
584 tok2str(juniper_ipsec_type_values,"Unknown",GET_U_1(ih->type)),
585 GET_U_1(ih->type),
586 GET_BE_U_4(ih->spi),
587 GET_IPADDR_STRING(ih->src_ip),
588 GET_IPADDR_STRING(ih->dst_ip),
589 l2info.length);
590 } else {
591 ND_PRINT("ES SA, index %u, ttl %u type %s (%u), length %u\n",
592 GET_BE_U_2(ih->sa_index),
593 GET_U_1(ih->ttl),
594 tok2str(juniper_ipsec_type_values,"Unknown",GET_U_1(ih->type)),
595 GET_U_1(ih->type),
596 l2info.length);
597 }
598 }
599
600 ip_print(ndo, p, l2info.length);
601 ndo->ndo_ll_hdr_len += l2info.header_len;
602 return;
603
604 trunc:
605 nd_print_trunc(ndo);
606 ndo->ndo_ll_hdr_len += l2info.header_len;
607 }
608 #endif
609
610 #ifdef DLT_JUNIPER_MONITOR
611 void
juniper_monitor_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)612 juniper_monitor_if_print(netdissect_options *ndo,
613 const struct pcap_pkthdr *h, const u_char *p)
614 {
615 struct juniper_l2info_t l2info;
616 struct juniper_monitor_header {
617 nd_uint8_t pkt_type;
618 nd_byte padding;
619 nd_uint16_t iif;
620 nd_uint32_t service_id;
621 };
622 const struct juniper_monitor_header *mh;
623
624 ndo->ndo_protocol = "juniper_monitor";
625 memset(&l2info, 0, sizeof(l2info));
626 l2info.pictype = DLT_JUNIPER_MONITOR;
627 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
628 ndo->ndo_ll_hdr_len += l2info.header_len;
629 return;
630 }
631
632 p+=l2info.header_len;
633 mh = (const struct juniper_monitor_header *)p;
634
635 ND_TCHECK_SIZE(mh);
636 if (ndo->ndo_eflag)
637 ND_PRINT("service-id %u, iif %u, pkt-type %u: ",
638 GET_BE_U_4(mh->service_id),
639 GET_BE_U_2(mh->iif),
640 GET_U_1(mh->pkt_type));
641
642 /* no proto field - lets guess by first byte of IP header*/
643 ip_heuristic_guess (ndo, p, l2info.length);
644
645 ndo->ndo_ll_hdr_len += l2info.header_len;
646 return;
647
648 trunc:
649 nd_print_trunc(ndo);
650 ndo->ndo_ll_hdr_len += l2info.header_len;
651 }
652 #endif
653
654 #ifdef DLT_JUNIPER_SERVICES
655 void
juniper_services_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)656 juniper_services_if_print(netdissect_options *ndo,
657 const struct pcap_pkthdr *h, const u_char *p)
658 {
659 struct juniper_l2info_t l2info;
660 struct juniper_services_header {
661 nd_uint8_t svc_id;
662 nd_uint8_t flags_len;
663 nd_uint16_t svc_set_id;
664 nd_byte pad;
665 nd_uint24_t dir_iif;
666 };
667 const struct juniper_services_header *sh;
668
669 ndo->ndo_protocol = "juniper_services";
670 memset(&l2info, 0, sizeof(l2info));
671 l2info.pictype = DLT_JUNIPER_SERVICES;
672 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
673 ndo->ndo_ll_hdr_len += l2info.header_len;
674 return;
675 }
676
677 p+=l2info.header_len;
678 sh = (const struct juniper_services_header *)p;
679
680 ND_TCHECK_SIZE(sh);
681 if (ndo->ndo_eflag)
682 ND_PRINT("service-id %u flags 0x%02x service-set-id 0x%04x iif %u: ",
683 GET_U_1(sh->svc_id),
684 GET_U_1(sh->flags_len),
685 GET_BE_U_2(sh->svc_set_id),
686 GET_BE_U_3(sh->dir_iif));
687
688 /* no proto field - lets guess by first byte of IP header*/
689 ip_heuristic_guess (ndo, p, l2info.length);
690
691 ndo->ndo_ll_hdr_len += l2info.header_len;
692 return;
693
694 trunc:
695 nd_print_trunc(ndo);
696 ndo->ndo_ll_hdr_len += l2info.header_len;
697 }
698 #endif
699
700 #ifdef DLT_JUNIPER_PPPOE
701 void
juniper_pppoe_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)702 juniper_pppoe_if_print(netdissect_options *ndo,
703 const struct pcap_pkthdr *h, const u_char *p)
704 {
705 struct juniper_l2info_t l2info;
706
707 ndo->ndo_protocol = "juniper_pppoe";
708 memset(&l2info, 0, sizeof(l2info));
709 l2info.pictype = DLT_JUNIPER_PPPOE;
710 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
711 ndo->ndo_ll_hdr_len += l2info.header_len;
712 return;
713 }
714
715 p+=l2info.header_len;
716 /* this DLT contains nothing but raw ethernet frames */
717 ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
718 ndo->ndo_ll_hdr_len += l2info.header_len;
719 }
720 #endif
721
722 #ifdef DLT_JUNIPER_ETHER
723 void
juniper_ether_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)724 juniper_ether_if_print(netdissect_options *ndo,
725 const struct pcap_pkthdr *h, const u_char *p)
726 {
727 struct juniper_l2info_t l2info;
728
729 ndo->ndo_protocol = "juniper_ether";
730 memset(&l2info, 0, sizeof(l2info));
731 l2info.pictype = DLT_JUNIPER_ETHER;
732 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
733 ndo->ndo_ll_hdr_len += l2info.header_len;
734 return;
735 }
736
737 p+=l2info.header_len;
738 /* this DLT contains nothing but raw Ethernet frames */
739 ndo->ndo_ll_hdr_len +=
740 l2info.header_len +
741 ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
742 }
743 #endif
744
745 #ifdef DLT_JUNIPER_PPP
746 void
juniper_ppp_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)747 juniper_ppp_if_print(netdissect_options *ndo,
748 const struct pcap_pkthdr *h, const u_char *p)
749 {
750 struct juniper_l2info_t l2info;
751
752 ndo->ndo_protocol = "juniper_ppp";
753 memset(&l2info, 0, sizeof(l2info));
754 l2info.pictype = DLT_JUNIPER_PPP;
755 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
756 ndo->ndo_ll_hdr_len += l2info.header_len;
757 return;
758 }
759
760 p+=l2info.header_len;
761 /* this DLT contains nothing but raw ppp frames */
762 ppp_print(ndo, p, l2info.length);
763 ndo->ndo_ll_hdr_len += l2info.header_len;
764 }
765 #endif
766
767 #ifdef DLT_JUNIPER_FRELAY
768 void
juniper_frelay_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)769 juniper_frelay_if_print(netdissect_options *ndo,
770 const struct pcap_pkthdr *h, const u_char *p)
771 {
772 struct juniper_l2info_t l2info;
773
774 ndo->ndo_protocol = "juniper_frelay";
775 memset(&l2info, 0, sizeof(l2info));
776 l2info.pictype = DLT_JUNIPER_FRELAY;
777 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
778 ndo->ndo_ll_hdr_len += l2info.header_len;
779 return;
780 }
781
782 p+=l2info.header_len;
783 /* this DLT contains nothing but raw frame-relay frames */
784 fr_print(ndo, p, l2info.length);
785 ndo->ndo_ll_hdr_len += l2info.header_len;
786 }
787 #endif
788
789 #ifdef DLT_JUNIPER_CHDLC
790 void
juniper_chdlc_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)791 juniper_chdlc_if_print(netdissect_options *ndo,
792 const struct pcap_pkthdr *h, const u_char *p)
793 {
794 struct juniper_l2info_t l2info;
795
796 ndo->ndo_protocol = "juniper_chdlc";
797 memset(&l2info, 0, sizeof(l2info));
798 l2info.pictype = DLT_JUNIPER_CHDLC;
799 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
800 ndo->ndo_ll_hdr_len += l2info.header_len;
801 return;
802 }
803
804 p+=l2info.header_len;
805 /* this DLT contains nothing but raw c-hdlc frames */
806 chdlc_print(ndo, p, l2info.length);
807 ndo->ndo_ll_hdr_len += l2info.header_len;
808 }
809 #endif
810
811 #ifdef DLT_JUNIPER_PPPOE_ATM
812 void
juniper_pppoe_atm_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)813 juniper_pppoe_atm_if_print(netdissect_options *ndo,
814 const struct pcap_pkthdr *h, const u_char *p)
815 {
816 struct juniper_l2info_t l2info;
817 uint16_t extracted_ethertype;
818
819 ndo->ndo_protocol = "juniper_pppoe_atm";
820 memset(&l2info, 0, sizeof(l2info));
821 l2info.pictype = DLT_JUNIPER_PPPOE_ATM;
822 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
823 ndo->ndo_ll_hdr_len += l2info.header_len;
824 return;
825 }
826
827 p+=l2info.header_len;
828
829 extracted_ethertype = GET_BE_U_2(p);
830 /* this DLT contains nothing but raw PPPoE frames,
831 * prepended with a type field*/
832 if (ethertype_print(ndo, extracted_ethertype,
833 p+ETHERTYPE_LEN,
834 l2info.length-ETHERTYPE_LEN,
835 l2info.caplen-ETHERTYPE_LEN,
836 NULL, NULL) == 0)
837 /* ether_type not known, probably it wasn't one */
838 ND_PRINT("unknown ethertype 0x%04x", extracted_ethertype);
839
840 ndo->ndo_ll_hdr_len += l2info.header_len;
841 }
842 #endif
843
844 #ifdef DLT_JUNIPER_MLPPP
845 void
juniper_mlppp_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)846 juniper_mlppp_if_print(netdissect_options *ndo,
847 const struct pcap_pkthdr *h, const u_char *p)
848 {
849 struct juniper_l2info_t l2info;
850
851 ndo->ndo_protocol = "juniper_mlppp";
852 memset(&l2info, 0, sizeof(l2info));
853 l2info.pictype = DLT_JUNIPER_MLPPP;
854 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
855 ndo->ndo_ll_hdr_len += l2info.header_len;
856 return;
857 }
858
859 /* suppress Bundle-ID if frame was captured on a child-link
860 * best indicator if the cookie looks like a proto */
861 if (ndo->ndo_eflag &&
862 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
863 EXTRACT_BE_U_2(&l2info.cookie) != PPP_OSI &&
864 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
865 EXTRACT_BE_U_2(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL))
866 ND_PRINT("Bundle-ID %u: ", l2info.bundle);
867
868 p+=l2info.header_len;
869
870 /* first try the LSQ protos */
871 switch(l2info.proto) {
872 case JUNIPER_LSQ_L3_PROTO_IPV4:
873 /* IP traffic going to the RE would not have a cookie
874 * -> this must be incoming IS-IS over PPP
875 */
876 if (l2info.cookie[4] == (JUNIPER_LSQ_COOKIE_RE|JUNIPER_LSQ_COOKIE_DIR))
877 ppp_print(ndo, p, l2info.length);
878 else
879 ip_print(ndo, p, l2info.length);
880 ndo->ndo_ll_hdr_len += l2info.header_len;
881 return;
882 case JUNIPER_LSQ_L3_PROTO_IPV6:
883 ip6_print(ndo, p,l2info.length);
884 ndo->ndo_ll_hdr_len += l2info.header_len;
885 return;
886 case JUNIPER_LSQ_L3_PROTO_MPLS:
887 mpls_print(ndo, p, l2info.length);
888 ndo->ndo_ll_hdr_len += l2info.header_len;
889 return;
890 case JUNIPER_LSQ_L3_PROTO_ISO:
891 isoclns_print(ndo, p, l2info.length);
892 ndo->ndo_ll_hdr_len += l2info.header_len;
893 return;
894 default:
895 break;
896 }
897
898 /* zero length cookie ? */
899 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
900 switch (EXTRACT_BE_U_2(&l2info.cookie)) {
901 case PPP_OSI:
902 ppp_print(ndo, p - 2, l2info.length + 2);
903 break;
904 case (PPP_ADDRESS << 8 | PPP_CONTROL): /* fall through */
905 default:
906 ppp_print(ndo, p, l2info.length);
907 break;
908 }
909
910 ndo->ndo_ll_hdr_len += l2info.header_len;
911 }
912 #endif
913
914
915 #ifdef DLT_JUNIPER_MFR
916 void
juniper_mfr_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)917 juniper_mfr_if_print(netdissect_options *ndo,
918 const struct pcap_pkthdr *h, const u_char *p)
919 {
920 struct juniper_l2info_t l2info;
921
922 ndo->ndo_protocol = "juniper_mfr";
923 memset(&l2info, 0, sizeof(l2info));
924 l2info.pictype = DLT_JUNIPER_MFR;
925 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
926 ndo->ndo_ll_hdr_len += l2info.header_len;
927 return;
928 }
929
930 p+=l2info.header_len;
931
932 /* child-link ? */
933 if (l2info.cookie_len == 0) {
934 mfr_print(ndo, p, l2info.length);
935 ndo->ndo_ll_hdr_len += l2info.header_len;
936 return;
937 }
938
939 /* first try the LSQ protos */
940 if (l2info.cookie_len == AS_PIC_COOKIE_LEN) {
941 switch(l2info.proto) {
942 case JUNIPER_LSQ_L3_PROTO_IPV4:
943 ip_print(ndo, p, l2info.length);
944 ndo->ndo_ll_hdr_len += l2info.header_len;
945 return;
946 case JUNIPER_LSQ_L3_PROTO_IPV6:
947 ip6_print(ndo, p,l2info.length);
948 ndo->ndo_ll_hdr_len += l2info.header_len;
949 return;
950 case JUNIPER_LSQ_L3_PROTO_MPLS:
951 mpls_print(ndo, p, l2info.length);
952 ndo->ndo_ll_hdr_len += l2info.header_len;
953 return;
954 case JUNIPER_LSQ_L3_PROTO_ISO:
955 isoclns_print(ndo, p, l2info.length);
956 ndo->ndo_ll_hdr_len += l2info.header_len;
957 return;
958 default:
959 break;
960 }
961 ndo->ndo_ll_hdr_len += l2info.header_len;
962 return;
963 }
964
965 /* suppress Bundle-ID if frame was captured on a child-link */
966 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
967 if (ndo->ndo_eflag && EXTRACT_BE_U_4(l2info.cookie) != 1)
968 ND_PRINT("Bundle-ID %u, ", l2info.bundle);
969 switch (l2info.proto) {
970 case (LLCSAP_ISONS<<8 | LLCSAP_ISONS):
971 isoclns_print(ndo, p + 1, l2info.length - 1);
972 break;
973 case (LLC_UI<<8 | NLPID_Q933):
974 case (LLC_UI<<8 | NLPID_IP):
975 case (LLC_UI<<8 | NLPID_IP6):
976 /* pass IP{4,6} to the OSI layer for proper link-layer printing */
977 isoclns_print(ndo, p - 1, l2info.length + 1);
978 break;
979 default:
980 ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length);
981 }
982
983 ndo->ndo_ll_hdr_len += l2info.header_len;
984 }
985 #endif
986
987 #ifdef DLT_JUNIPER_MLFR
988 void
juniper_mlfr_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)989 juniper_mlfr_if_print(netdissect_options *ndo,
990 const struct pcap_pkthdr *h, const u_char *p)
991 {
992 struct juniper_l2info_t l2info;
993
994 ndo->ndo_protocol = "juniper_mlfr";
995 memset(&l2info, 0, sizeof(l2info));
996 l2info.pictype = DLT_JUNIPER_MLFR;
997 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
998 ndo->ndo_ll_hdr_len += l2info.header_len;
999 return;
1000 }
1001
1002 p+=l2info.header_len;
1003
1004 /* suppress Bundle-ID if frame was captured on a child-link */
1005 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1006 if (ndo->ndo_eflag && EXTRACT_BE_U_4(l2info.cookie) != 1)
1007 ND_PRINT("Bundle-ID %u, ", l2info.bundle);
1008 switch (l2info.proto) {
1009 case (LLC_UI):
1010 case (LLC_UI<<8):
1011 isoclns_print(ndo, p, l2info.length);
1012 break;
1013 case (LLC_UI<<8 | NLPID_Q933):
1014 case (LLC_UI<<8 | NLPID_IP):
1015 case (LLC_UI<<8 | NLPID_IP6):
1016 /* pass IP{4,6} to the OSI layer for proper link-layer printing */
1017 isoclns_print(ndo, p - 1, l2info.length + 1);
1018 break;
1019 default:
1020 ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length);
1021 }
1022
1023 ndo->ndo_ll_hdr_len += l2info.header_len;
1024 }
1025 #endif
1026
1027 /*
1028 * ATM1 PIC cookie format
1029 *
1030 * +-----+-------------------------+-------------------------------+
1031 * |fmtid| vc index | channel ID |
1032 * +-----+-------------------------+-------------------------------+
1033 */
1034
1035 #ifdef DLT_JUNIPER_ATM1
1036 void
juniper_atm1_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)1037 juniper_atm1_if_print(netdissect_options *ndo,
1038 const struct pcap_pkthdr *h, const u_char *p)
1039 {
1040 int llc_hdrlen;
1041
1042 struct juniper_l2info_t l2info;
1043
1044 ndo->ndo_protocol = "juniper_atm1";
1045 memset(&l2info, 0, sizeof(l2info));
1046 l2info.pictype = DLT_JUNIPER_ATM1;
1047 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
1048 ndo->ndo_ll_hdr_len += l2info.header_len;
1049 return;
1050 }
1051
1052 p+=l2info.header_len;
1053
1054 if (l2info.cookie[0] == 0x80) { /* OAM cell ? */
1055 oam_print(ndo, p, l2info.length, ATM_OAM_NOHEC);
1056 ndo->ndo_ll_hdr_len += l2info.header_len;
1057 return;
1058 }
1059
1060 if (GET_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */
1061 GET_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */
1062
1063 llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
1064 if (llc_hdrlen > 0) {
1065 ndo->ndo_ll_hdr_len += l2info.header_len;
1066 return;
1067 }
1068 }
1069
1070 if (GET_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */
1071 isoclns_print(ndo, p + 1, l2info.length - 1);
1072 /* FIXME check if frame was recognized */
1073 ndo->ndo_ll_hdr_len += l2info.header_len;
1074 return;
1075 }
1076
1077 if (ip_heuristic_guess(ndo, p, l2info.length) != 0) { /* last try - vcmux encaps ? */
1078 ndo->ndo_ll_hdr_len += l2info.header_len;
1079 return;
1080 }
1081
1082 ndo->ndo_ll_hdr_len += l2info.header_len;
1083 }
1084 #endif
1085
1086 /*
1087 * ATM2 PIC cookie format
1088 *
1089 * +-------------------------------+---------+---+-----+-----------+
1090 * | channel ID | reserv |AAL| CCRQ| gap cnt |
1091 * +-------------------------------+---------+---+-----+-----------+
1092 */
1093
1094 #ifdef DLT_JUNIPER_ATM2
1095 void
juniper_atm2_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)1096 juniper_atm2_if_print(netdissect_options *ndo,
1097 const struct pcap_pkthdr *h, const u_char *p)
1098 {
1099 int llc_hdrlen;
1100
1101 struct juniper_l2info_t l2info;
1102
1103 ndo->ndo_protocol = "juniper_atm2";
1104 memset(&l2info, 0, sizeof(l2info));
1105 l2info.pictype = DLT_JUNIPER_ATM2;
1106 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
1107 ndo->ndo_ll_hdr_len += l2info.header_len;
1108 return;
1109 }
1110
1111 p+=l2info.header_len;
1112
1113 if (l2info.cookie[7] & ATM2_PKT_TYPE_MASK) { /* OAM cell ? */
1114 oam_print(ndo, p, l2info.length, ATM_OAM_NOHEC);
1115 ndo->ndo_ll_hdr_len += l2info.header_len;
1116 return;
1117 }
1118
1119 if (GET_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */
1120 GET_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */
1121
1122 llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
1123 if (llc_hdrlen > 0) {
1124 ndo->ndo_ll_hdr_len += l2info.header_len;
1125 return;
1126 }
1127 }
1128
1129 if (l2info.direction != JUNIPER_BPF_PKT_IN && /* ether-over-1483 encaps ? */
1130 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1131 (EXTRACT_BE_U_4(l2info.cookie) & ATM2_GAP_COUNT_MASK)) {
1132 ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
1133 ndo->ndo_ll_hdr_len += l2info.header_len;
1134 return;
1135 }
1136
1137 if (GET_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */
1138 isoclns_print(ndo, p + 1, l2info.length - 1);
1139 /* FIXME check if frame was recognized */
1140 ndo->ndo_ll_hdr_len += l2info.header_len;
1141 return;
1142 }
1143
1144 if(juniper_ppp_heuristic_guess(ndo, p, l2info.length) != 0) { /* PPPoA vcmux encaps ? */
1145 ndo->ndo_ll_hdr_len += l2info.header_len;
1146 return;
1147 }
1148
1149 if (ip_heuristic_guess(ndo, p, l2info.length) != 0) { /* last try - vcmux encaps ? */
1150 ndo->ndo_ll_hdr_len += l2info.header_len;
1151 return;
1152 }
1153
1154 ndo->ndo_ll_hdr_len += l2info.header_len;
1155 }
1156
1157 /* try to guess, based on all PPP protos that are supported in
1158 * a juniper router if the payload data is encapsulated using PPP */
1159 static int
juniper_ppp_heuristic_guess(netdissect_options * ndo,const u_char * p,u_int length)1160 juniper_ppp_heuristic_guess(netdissect_options *ndo,
1161 const u_char *p, u_int length)
1162 {
1163 switch(GET_BE_U_2(p)) {
1164 case PPP_IP :
1165 case PPP_OSI :
1166 case PPP_MPLS_UCAST :
1167 case PPP_MPLS_MCAST :
1168 case PPP_IPCP :
1169 case PPP_OSICP :
1170 case PPP_MPLSCP :
1171 case PPP_LCP :
1172 case PPP_PAP :
1173 case PPP_CHAP :
1174 case PPP_ML :
1175 case PPP_IPV6 :
1176 case PPP_IPV6CP :
1177 ppp_print(ndo, p, length);
1178 break;
1179
1180 default:
1181 return 0; /* did not find a ppp header */
1182 break;
1183 }
1184 return 1; /* we printed a ppp packet */
1185 }
1186 #endif
1187
1188 static int
ip_heuristic_guess(netdissect_options * ndo,const u_char * p,u_int length)1189 ip_heuristic_guess(netdissect_options *ndo,
1190 const u_char *p, u_int length)
1191 {
1192 switch(GET_U_1(p)) {
1193 case 0x45:
1194 case 0x46:
1195 case 0x47:
1196 case 0x48:
1197 case 0x49:
1198 case 0x4a:
1199 case 0x4b:
1200 case 0x4c:
1201 case 0x4d:
1202 case 0x4e:
1203 case 0x4f:
1204 ip_print(ndo, p, length);
1205 break;
1206 case 0x60:
1207 case 0x61:
1208 case 0x62:
1209 case 0x63:
1210 case 0x64:
1211 case 0x65:
1212 case 0x66:
1213 case 0x67:
1214 case 0x68:
1215 case 0x69:
1216 case 0x6a:
1217 case 0x6b:
1218 case 0x6c:
1219 case 0x6d:
1220 case 0x6e:
1221 case 0x6f:
1222 ip6_print(ndo, p, length);
1223 break;
1224 default:
1225 return 0; /* did not find a ip header */
1226 break;
1227 }
1228 return 1; /* we printed an v4/v6 packet */
1229 }
1230
1231 static int
juniper_read_tlv_value(netdissect_options * ndo,const u_char * p,u_int tlv_type,u_int tlv_len)1232 juniper_read_tlv_value(netdissect_options *ndo,
1233 const u_char *p, u_int tlv_type, u_int tlv_len)
1234 {
1235 int tlv_value;
1236
1237 /* TLVs < 128 are little endian encoded */
1238 if (tlv_type < 128) {
1239 switch (tlv_len) {
1240 case 1:
1241 tlv_value = GET_U_1(p);
1242 break;
1243 case 2:
1244 tlv_value = GET_LE_U_2(p);
1245 break;
1246 case 3:
1247 tlv_value = GET_LE_U_3(p);
1248 break;
1249 case 4:
1250 tlv_value = GET_LE_U_4(p);
1251 break;
1252 default:
1253 tlv_value = -1;
1254 break;
1255 }
1256 } else {
1257 /* TLVs >= 128 are big endian encoded */
1258 switch (tlv_len) {
1259 case 1:
1260 tlv_value = GET_U_1(p);
1261 break;
1262 case 2:
1263 tlv_value = GET_BE_U_2(p);
1264 break;
1265 case 3:
1266 tlv_value = GET_BE_U_3(p);
1267 break;
1268 case 4:
1269 tlv_value = GET_BE_U_4(p);
1270 break;
1271 default:
1272 tlv_value = -1;
1273 break;
1274 }
1275 }
1276 return tlv_value;
1277 }
1278
1279 static int
juniper_parse_header(netdissect_options * ndo,const u_char * p,const struct pcap_pkthdr * h,struct juniper_l2info_t * l2info)1280 juniper_parse_header(netdissect_options *ndo,
1281 const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info)
1282 {
1283 const struct juniper_cookie_table_t *lp = juniper_cookie_table;
1284 u_int idx, jnx_ext_len, jnx_header_len = 0;
1285 uint8_t tlv_type,tlv_len;
1286 #ifdef DLT_JUNIPER_ATM2
1287 uint32_t control_word;
1288 #endif
1289 int tlv_value;
1290 const u_char *tptr;
1291
1292
1293 l2info->header_len = 0;
1294 l2info->cookie_len = 0;
1295 l2info->proto = 0;
1296
1297
1298 l2info->length = h->len;
1299 l2info->caplen = h->caplen;
1300 l2info->flags = GET_U_1(p + 3);
1301 l2info->direction = GET_U_1(p + 3) & JUNIPER_BPF_PKT_IN;
1302
1303 if (GET_BE_U_3(p) != JUNIPER_MGC_NUMBER) { /* magic number found ? */
1304 ND_PRINT("no magic-number found!");
1305 return 0;
1306 }
1307
1308 if (ndo->ndo_eflag) /* print direction */
1309 ND_PRINT("%3s ", tok2str(juniper_direction_values, "---", l2info->direction));
1310
1311 /* magic number + flags */
1312 jnx_header_len = 4;
1313
1314 if (ndo->ndo_vflag > 1)
1315 ND_PRINT("\n\tJuniper PCAP Flags [%s]",
1316 bittok2str(jnx_flag_values, "none", l2info->flags));
1317
1318 /* extensions present ? - calculate how much bytes to skip */
1319 if ((l2info->flags & JUNIPER_BPF_EXT ) == JUNIPER_BPF_EXT ) {
1320
1321 tptr = p+jnx_header_len;
1322
1323 /* ok to read extension length ? */
1324 jnx_ext_len = GET_BE_U_2(tptr);
1325 jnx_header_len += 2;
1326 tptr +=2;
1327
1328 /* nail up the total length -
1329 * just in case something goes wrong
1330 * with TLV parsing */
1331 jnx_header_len += jnx_ext_len;
1332
1333 if (ndo->ndo_vflag > 1)
1334 ND_PRINT(", PCAP Extension(s) total length %u", jnx_ext_len);
1335
1336 ND_TCHECK_LEN(tptr, jnx_ext_len);
1337 while (jnx_ext_len > JUNIPER_EXT_TLV_OVERHEAD) {
1338 tlv_type = GET_U_1(tptr);
1339 tptr++;
1340 tlv_len = GET_U_1(tptr);
1341 tptr++;
1342 tlv_value = 0;
1343
1344 /* sanity checks */
1345 if (tlv_type == 0 || tlv_len == 0)
1346 break;
1347 if (tlv_len+JUNIPER_EXT_TLV_OVERHEAD > jnx_ext_len)
1348 goto trunc;
1349
1350 if (ndo->ndo_vflag > 1)
1351 ND_PRINT("\n\t %s Extension TLV #%u, length %u, value ",
1352 tok2str(jnx_ext_tlv_values,"Unknown",tlv_type),
1353 tlv_type,
1354 tlv_len);
1355
1356 tlv_value = juniper_read_tlv_value(ndo, tptr, tlv_type, tlv_len);
1357 switch (tlv_type) {
1358 case JUNIPER_EXT_TLV_IFD_NAME:
1359 /* FIXME */
1360 break;
1361 case JUNIPER_EXT_TLV_IFD_MEDIATYPE:
1362 case JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE:
1363 if (tlv_value != -1) {
1364 if (ndo->ndo_vflag > 1)
1365 ND_PRINT("%s (%u)",
1366 tok2str(juniper_ifmt_values, "Unknown", tlv_value),
1367 tlv_value);
1368 }
1369 break;
1370 case JUNIPER_EXT_TLV_IFL_ENCAPS:
1371 case JUNIPER_EXT_TLV_TTP_IFL_ENCAPS:
1372 if (tlv_value != -1) {
1373 if (ndo->ndo_vflag > 1)
1374 ND_PRINT("%s (%u)",
1375 tok2str(juniper_ifle_values, "Unknown", tlv_value),
1376 tlv_value);
1377 }
1378 break;
1379 case JUNIPER_EXT_TLV_IFL_IDX: /* fall through */
1380 case JUNIPER_EXT_TLV_IFL_UNIT:
1381 case JUNIPER_EXT_TLV_IFD_IDX:
1382 default:
1383 if (tlv_value != -1) {
1384 if (ndo->ndo_vflag > 1)
1385 ND_PRINT("%u", tlv_value);
1386 }
1387 break;
1388 }
1389
1390 tptr+=tlv_len;
1391 jnx_ext_len -= tlv_len+JUNIPER_EXT_TLV_OVERHEAD;
1392 }
1393
1394 if (ndo->ndo_vflag > 1)
1395 ND_PRINT("\n\t-----original packet-----\n\t");
1396 }
1397
1398 if ((l2info->flags & JUNIPER_BPF_NO_L2 ) == JUNIPER_BPF_NO_L2 ) {
1399 if (ndo->ndo_eflag)
1400 ND_PRINT("no-L2-hdr, ");
1401
1402 /* there is no link-layer present -
1403 * perform the v4/v6 heuristics
1404 * to figure out what it is
1405 */
1406 ND_TCHECK_1(p + (jnx_header_len + 4));
1407 if (ip_heuristic_guess(ndo, p + jnx_header_len + 4,
1408 l2info->length - (jnx_header_len + 4)) == 0)
1409 ND_PRINT("no IP-hdr found!");
1410
1411 l2info->header_len=jnx_header_len+4;
1412 return 0; /* stop parsing the output further */
1413
1414 }
1415 l2info->header_len = jnx_header_len;
1416 p+=l2info->header_len;
1417 l2info->length -= l2info->header_len;
1418 l2info->caplen -= l2info->header_len;
1419
1420 /* search through the cookie table and copy values matching for our PIC type */
1421 ND_TCHECK_1(p);
1422 while (lp->s != NULL) {
1423 if (lp->pictype == l2info->pictype) {
1424
1425 l2info->cookie_len += lp->cookie_len;
1426
1427 switch (GET_U_1(p)) {
1428 case LS_COOKIE_ID:
1429 l2info->cookie_type = LS_COOKIE_ID;
1430 l2info->cookie_len += 2;
1431 break;
1432 case AS_COOKIE_ID:
1433 l2info->cookie_type = AS_COOKIE_ID;
1434 l2info->cookie_len = 8;
1435 break;
1436
1437 default:
1438 l2info->bundle = l2info->cookie[0];
1439 break;
1440 }
1441
1442
1443 #ifdef DLT_JUNIPER_MFR
1444 /* MFR child links don't carry cookies */
1445 if (l2info->pictype == DLT_JUNIPER_MFR &&
1446 (GET_U_1(p) & MFR_BE_MASK) == MFR_BE_MASK) {
1447 l2info->cookie_len = 0;
1448 }
1449 #endif
1450
1451 l2info->header_len += l2info->cookie_len;
1452 l2info->length -= l2info->cookie_len;
1453 l2info->caplen -= l2info->cookie_len;
1454
1455 if (ndo->ndo_eflag)
1456 ND_PRINT("%s-PIC, cookie-len %u",
1457 lp->s,
1458 l2info->cookie_len);
1459
1460 if (l2info->cookie_len > 8) {
1461 nd_print_invalid(ndo);
1462 return 0;
1463 }
1464
1465 if (l2info->cookie_len > 0) {
1466 ND_TCHECK_LEN(p, l2info->cookie_len);
1467 if (ndo->ndo_eflag)
1468 ND_PRINT(", cookie 0x");
1469 for (idx = 0; idx < l2info->cookie_len; idx++) {
1470 l2info->cookie[idx] = GET_U_1(p + idx); /* copy cookie data */
1471 if (ndo->ndo_eflag) ND_PRINT("%02x", GET_U_1(p + idx));
1472 }
1473 }
1474
1475 if (ndo->ndo_eflag) ND_PRINT(": "); /* print demarc b/w L2/L3*/
1476
1477
1478 l2info->proto = GET_BE_U_2(p + l2info->cookie_len);
1479 break;
1480 }
1481 ++lp;
1482 }
1483 p+=l2info->cookie_len;
1484
1485 /* DLT_ specific parsing */
1486 switch(l2info->pictype) {
1487 #ifdef DLT_JUNIPER_MLPPP
1488 case DLT_JUNIPER_MLPPP:
1489 switch (l2info->cookie_type) {
1490 case LS_COOKIE_ID:
1491 l2info->bundle = l2info->cookie[1];
1492 break;
1493 case AS_COOKIE_ID:
1494 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1495 l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
1496 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
1497 break;
1498 default:
1499 l2info->bundle = l2info->cookie[0];
1500 break;
1501 }
1502 break;
1503 #endif
1504 #ifdef DLT_JUNIPER_MLFR
1505 case DLT_JUNIPER_MLFR:
1506 switch (l2info->cookie_type) {
1507 case LS_COOKIE_ID:
1508 l2info->bundle = l2info->cookie[1];
1509 l2info->proto = GET_BE_U_2(p);
1510 l2info->header_len += 2;
1511 l2info->length -= 2;
1512 l2info->caplen -= 2;
1513 break;
1514 case AS_COOKIE_ID:
1515 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1516 l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
1517 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
1518 break;
1519 default:
1520 l2info->bundle = l2info->cookie[0];
1521 l2info->header_len += 2;
1522 l2info->length -= 2;
1523 l2info->caplen -= 2;
1524 break;
1525 }
1526 break;
1527 #endif
1528 #ifdef DLT_JUNIPER_MFR
1529 case DLT_JUNIPER_MFR:
1530 switch (l2info->cookie_type) {
1531 case LS_COOKIE_ID:
1532 l2info->bundle = l2info->cookie[1];
1533 l2info->proto = GET_BE_U_2(p);
1534 l2info->header_len += 2;
1535 l2info->length -= 2;
1536 l2info->caplen -= 2;
1537 break;
1538 case AS_COOKIE_ID:
1539 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1540 l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
1541 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
1542 break;
1543 default:
1544 l2info->bundle = l2info->cookie[0];
1545 break;
1546 }
1547 break;
1548 #endif
1549 #ifdef DLT_JUNIPER_ATM2
1550 case DLT_JUNIPER_ATM2:
1551 ND_TCHECK_4(p);
1552 /* ATM cell relay control word present ? */
1553 if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK) {
1554 control_word = GET_BE_U_4(p);
1555 /* some control word heuristics */
1556 switch(control_word) {
1557 case 0: /* zero control word */
1558 case 0x08000000: /* < JUNOS 7.4 control-word */
1559 case 0x08380000: /* cntl word plus cell length (56) >= JUNOS 7.4*/
1560 l2info->header_len += 4;
1561 break;
1562 default:
1563 break;
1564 }
1565
1566 if (ndo->ndo_eflag)
1567 ND_PRINT("control-word 0x%08x ", control_word);
1568 }
1569 break;
1570 #endif
1571 #ifdef DLT_JUNIPER_GGSN
1572 case DLT_JUNIPER_GGSN:
1573 break;
1574 #endif
1575 #ifdef DLT_JUNIPER_ATM1
1576 case DLT_JUNIPER_ATM1:
1577 break;
1578 #endif
1579 #ifdef DLT_JUNIPER_PPP
1580 case DLT_JUNIPER_PPP:
1581 break;
1582 #endif
1583 #ifdef DLT_JUNIPER_CHDLC
1584 case DLT_JUNIPER_CHDLC:
1585 break;
1586 #endif
1587 #ifdef DLT_JUNIPER_ETHER
1588 case DLT_JUNIPER_ETHER:
1589 break;
1590 #endif
1591 #ifdef DLT_JUNIPER_FRELAY
1592 case DLT_JUNIPER_FRELAY:
1593 break;
1594 #endif
1595
1596 default:
1597 ND_PRINT("Unknown Juniper DLT_ type %u: ", l2info->pictype);
1598 break;
1599 }
1600
1601 if (ndo->ndo_eflag)
1602 ND_PRINT("hlen %u, proto 0x%04x, ", l2info->header_len, l2info->proto);
1603
1604 return 1; /* everything went ok so far. continue parsing */
1605 trunc:
1606 nd_print_trunc(ndo);
1607 return 0;
1608 }
1609 #endif /* defined(DLT_JUNIPER_GGSN) || defined(DLT_JUNIPER_ES) || \
1610 defined(DLT_JUNIPER_MONITOR) || defined(DLT_JUNIPER_SERVICES) || \
1611 defined(DLT_JUNIPER_PPPOE) || defined(DLT_JUNIPER_ETHER) || \
1612 defined(DLT_JUNIPER_PPP) || defined(DLT_JUNIPER_FRELAY) || \
1613 defined(DLT_JUNIPER_CHDLC) || defined(DLT_JUNIPER_PPPOE_ATM) || \
1614 defined(DLT_JUNIPER_MLPPP) || defined(DLT_JUNIPER_MFR) || \
1615 defined(DLT_JUNIPER_MLFR) || defined(DLT_JUNIPER_ATM1) || \
1616 defined(DLT_JUNIPER_ATM2) */
1617