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Remove many (762) now redundant ND_TCHECK_n() calls
[tcpdump] / print-juniper.c
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
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 l2info.pictype = DLT_JUNIPER_GGSN;
488 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
489 ndo->ndo_ll_hdr_len += l2info.header_len;
490 return;
491 }
492
493 p+=l2info.header_len;
494 gh = (struct juniper_ggsn_header *)&l2info.cookie;
495
496 ND_TCHECK_SIZE(gh);
497 proto = GET_U_1(gh->proto);
498 if (ndo->ndo_eflag) {
499 ND_PRINT("proto %s (%u), vlan %u: ",
500 tok2str(juniper_protocol_values,"Unknown",proto),
501 proto,
502 GET_BE_U_2(gh->vlan_id));
503 }
504
505 switch (proto) {
506 case JUNIPER_PROTO_IPV4:
507 ip_print(ndo, p, l2info.length);
508 break;
509 case JUNIPER_PROTO_IPV6:
510 ip6_print(ndo, p, l2info.length);
511 break;
512 default:
513 if (!ndo->ndo_eflag)
514 ND_PRINT("unknown GGSN proto (%u)", proto);
515 }
516
517 ndo->ndo_ll_hdr_len += l2info.header_len;
518 return;
519
520 trunc:
521 nd_print_trunc(ndo);
522 ndo->ndo_ll_hdr_len += l2info.header_len;
523 }
524 #endif
525
526 #ifdef DLT_JUNIPER_ES
527 void
528 juniper_es_if_print(netdissect_options *ndo,
529 const struct pcap_pkthdr *h, const u_char *p)
530 {
531 struct juniper_l2info_t l2info;
532 struct juniper_ipsec_header {
533 nd_uint16_t sa_index;
534 nd_uint8_t ttl;
535 nd_uint8_t type;
536 nd_uint32_t spi;
537 nd_ipv4 src_ip;
538 nd_ipv4 dst_ip;
539 };
540 u_int rewrite_len,es_type_bundle;
541 const struct juniper_ipsec_header *ih;
542
543 ndo->ndo_protocol = "juniper_es";
544 l2info.pictype = DLT_JUNIPER_ES;
545 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
546 ndo->ndo_ll_hdr_len += l2info.header_len;
547 return;
548 }
549
550 p+=l2info.header_len;
551 ih = (const struct juniper_ipsec_header *)p;
552
553 ND_TCHECK_SIZE(ih);
554 switch (GET_U_1(ih->type)) {
555 case JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE:
556 case JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE:
557 rewrite_len = 0;
558 es_type_bundle = 1;
559 break;
560 case JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE:
561 case JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE:
562 case JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE:
563 rewrite_len = 16;
564 es_type_bundle = 0;
565 break;
566 default:
567 ND_PRINT("ES Invalid type %u, length %u",
568 GET_U_1(ih->type),
569 l2info.length);
570 ndo->ndo_ll_hdr_len += l2info.header_len;
571 return;
572 }
573
574 l2info.length-=rewrite_len;
575 p+=rewrite_len;
576
577 if (ndo->ndo_eflag) {
578 if (!es_type_bundle) {
579 ND_PRINT("ES SA, index %u, ttl %u type %s (%u), spi %u, Tunnel %s > %s, length %u\n",
580 GET_BE_U_2(ih->sa_index),
581 GET_U_1(ih->ttl),
582 tok2str(juniper_ipsec_type_values,"Unknown",GET_U_1(ih->type)),
583 GET_U_1(ih->type),
584 GET_BE_U_4(ih->spi),
585 GET_IPADDR_STRING(ih->src_ip),
586 GET_IPADDR_STRING(ih->dst_ip),
587 l2info.length);
588 } else {
589 ND_PRINT("ES SA, index %u, ttl %u type %s (%u), length %u\n",
590 GET_BE_U_2(ih->sa_index),
591 GET_U_1(ih->ttl),
592 tok2str(juniper_ipsec_type_values,"Unknown",GET_U_1(ih->type)),
593 GET_U_1(ih->type),
594 l2info.length);
595 }
596 }
597
598 ip_print(ndo, p, l2info.length);
599 ndo->ndo_ll_hdr_len += l2info.header_len;
600 return;
601
602 trunc:
603 nd_print_trunc(ndo);
604 ndo->ndo_ll_hdr_len += l2info.header_len;
605 }
606 #endif
607
608 #ifdef DLT_JUNIPER_MONITOR
609 void
610 juniper_monitor_if_print(netdissect_options *ndo,
611 const struct pcap_pkthdr *h, const u_char *p)
612 {
613 struct juniper_l2info_t l2info;
614 struct juniper_monitor_header {
615 nd_uint8_t pkt_type;
616 nd_byte padding;
617 nd_uint16_t iif;
618 nd_uint32_t service_id;
619 };
620 const struct juniper_monitor_header *mh;
621
622 ndo->ndo_protocol = "juniper_monitor";
623 l2info.pictype = DLT_JUNIPER_MONITOR;
624 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
625 ndo->ndo_ll_hdr_len += l2info.header_len;
626 return;
627 }
628
629 p+=l2info.header_len;
630 mh = (const struct juniper_monitor_header *)p;
631
632 ND_TCHECK_SIZE(mh);
633 if (ndo->ndo_eflag)
634 ND_PRINT("service-id %u, iif %u, pkt-type %u: ",
635 GET_BE_U_4(mh->service_id),
636 GET_BE_U_2(mh->iif),
637 GET_U_1(mh->pkt_type));
638
639 /* no proto field - lets guess by first byte of IP header*/
640 ip_heuristic_guess (ndo, p, l2info.length);
641
642 ndo->ndo_ll_hdr_len += l2info.header_len;
643 return;
644
645 trunc:
646 nd_print_trunc(ndo);
647 ndo->ndo_ll_hdr_len += l2info.header_len;
648 }
649 #endif
650
651 #ifdef DLT_JUNIPER_SERVICES
652 void
653 juniper_services_if_print(netdissect_options *ndo,
654 const struct pcap_pkthdr *h, const u_char *p)
655 {
656 struct juniper_l2info_t l2info;
657 struct juniper_services_header {
658 nd_uint8_t svc_id;
659 nd_uint8_t flags_len;
660 nd_uint16_t svc_set_id;
661 nd_byte pad;
662 nd_uint24_t dir_iif;
663 };
664 const struct juniper_services_header *sh;
665
666 ndo->ndo_protocol = "juniper_services";
667 l2info.pictype = DLT_JUNIPER_SERVICES;
668 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
669 ndo->ndo_ll_hdr_len += l2info.header_len;
670 return;
671 }
672
673 p+=l2info.header_len;
674 sh = (const struct juniper_services_header *)p;
675
676 ND_TCHECK_SIZE(sh);
677 if (ndo->ndo_eflag)
678 ND_PRINT("service-id %u flags 0x%02x service-set-id 0x%04x iif %u: ",
679 GET_U_1(sh->svc_id),
680 GET_U_1(sh->flags_len),
681 GET_BE_U_2(sh->svc_set_id),
682 GET_BE_U_3(sh->dir_iif));
683
684 /* no proto field - lets guess by first byte of IP header*/
685 ip_heuristic_guess (ndo, p, l2info.length);
686
687 ndo->ndo_ll_hdr_len += l2info.header_len;
688 return;
689
690 trunc:
691 nd_print_trunc(ndo);
692 ndo->ndo_ll_hdr_len += l2info.header_len;
693 }
694 #endif
695
696 #ifdef DLT_JUNIPER_PPPOE
697 void
698 juniper_pppoe_if_print(netdissect_options *ndo,
699 const struct pcap_pkthdr *h, const u_char *p)
700 {
701 struct juniper_l2info_t l2info;
702
703 ndo->ndo_protocol = "juniper_pppoe";
704 l2info.pictype = DLT_JUNIPER_PPPOE;
705 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
706 ndo->ndo_ll_hdr_len += l2info.header_len;
707 return;
708 }
709
710 p+=l2info.header_len;
711 /* this DLT contains nothing but raw ethernet frames */
712 ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
713 ndo->ndo_ll_hdr_len += l2info.header_len;
714 }
715 #endif
716
717 #ifdef DLT_JUNIPER_ETHER
718 void
719 juniper_ether_if_print(netdissect_options *ndo,
720 const struct pcap_pkthdr *h, const u_char *p)
721 {
722 struct juniper_l2info_t l2info;
723
724 ndo->ndo_protocol = "juniper_ether";
725 l2info.pictype = DLT_JUNIPER_ETHER;
726 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
727 ndo->ndo_ll_hdr_len += l2info.header_len;
728 return;
729 }
730
731 p+=l2info.header_len;
732 /* this DLT contains nothing but raw Ethernet frames */
733 ndo->ndo_ll_hdr_len +=
734 l2info.header_len +
735 ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
736 }
737 #endif
738
739 #ifdef DLT_JUNIPER_PPP
740 void
741 juniper_ppp_if_print(netdissect_options *ndo,
742 const struct pcap_pkthdr *h, const u_char *p)
743 {
744 struct juniper_l2info_t l2info;
745
746 ndo->ndo_protocol = "juniper_ppp";
747 l2info.pictype = DLT_JUNIPER_PPP;
748 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
749 ndo->ndo_ll_hdr_len += l2info.header_len;
750 return;
751 }
752
753 p+=l2info.header_len;
754 /* this DLT contains nothing but raw ppp frames */
755 ppp_print(ndo, p, l2info.length);
756 ndo->ndo_ll_hdr_len += l2info.header_len;
757 }
758 #endif
759
760 #ifdef DLT_JUNIPER_FRELAY
761 void
762 juniper_frelay_if_print(netdissect_options *ndo,
763 const struct pcap_pkthdr *h, const u_char *p)
764 {
765 struct juniper_l2info_t l2info;
766
767 ndo->ndo_protocol = "juniper_frelay";
768 l2info.pictype = DLT_JUNIPER_FRELAY;
769 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
770 ndo->ndo_ll_hdr_len += l2info.header_len;
771 return;
772 }
773
774 p+=l2info.header_len;
775 /* this DLT contains nothing but raw frame-relay frames */
776 fr_print(ndo, p, l2info.length);
777 ndo->ndo_ll_hdr_len += l2info.header_len;
778 }
779 #endif
780
781 #ifdef DLT_JUNIPER_CHDLC
782 void
783 juniper_chdlc_if_print(netdissect_options *ndo,
784 const struct pcap_pkthdr *h, const u_char *p)
785 {
786 struct juniper_l2info_t l2info;
787
788 ndo->ndo_protocol = "juniper_chdlc";
789 l2info.pictype = DLT_JUNIPER_CHDLC;
790 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
791 ndo->ndo_ll_hdr_len += l2info.header_len;
792 return;
793 }
794
795 p+=l2info.header_len;
796 /* this DLT contains nothing but raw c-hdlc frames */
797 chdlc_print(ndo, p, l2info.length);
798 ndo->ndo_ll_hdr_len += l2info.header_len;
799 }
800 #endif
801
802 #ifdef DLT_JUNIPER_PPPOE_ATM
803 void
804 juniper_pppoe_atm_if_print(netdissect_options *ndo,
805 const struct pcap_pkthdr *h, const u_char *p)
806 {
807 struct juniper_l2info_t l2info;
808 uint16_t extracted_ethertype;
809
810 ndo->ndo_protocol = "juniper_pppoe_atm";
811 l2info.pictype = DLT_JUNIPER_PPPOE_ATM;
812 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
813 ndo->ndo_ll_hdr_len += l2info.header_len;
814 return;
815 }
816
817 p+=l2info.header_len;
818
819 extracted_ethertype = GET_BE_U_2(p);
820 /* this DLT contains nothing but raw PPPoE frames,
821 * prepended with a type field*/
822 if (ethertype_print(ndo, extracted_ethertype,
823 p+ETHERTYPE_LEN,
824 l2info.length-ETHERTYPE_LEN,
825 l2info.caplen-ETHERTYPE_LEN,
826 NULL, NULL) == 0)
827 /* ether_type not known, probably it wasn't one */
828 ND_PRINT("unknown ethertype 0x%04x", extracted_ethertype);
829
830 ndo->ndo_ll_hdr_len += l2info.header_len;
831 }
832 #endif
833
834 #ifdef DLT_JUNIPER_MLPPP
835 void
836 juniper_mlppp_if_print(netdissect_options *ndo,
837 const struct pcap_pkthdr *h, const u_char *p)
838 {
839 struct juniper_l2info_t l2info;
840
841 ndo->ndo_protocol = "juniper_mlppp";
842 l2info.pictype = DLT_JUNIPER_MLPPP;
843 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
844 ndo->ndo_ll_hdr_len += l2info.header_len;
845 return;
846 }
847
848 /* suppress Bundle-ID if frame was captured on a child-link
849 * best indicator if the cookie looks like a proto */
850 if (ndo->ndo_eflag &&
851 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
852 EXTRACT_BE_U_2(&l2info.cookie) != PPP_OSI &&
853 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
854 EXTRACT_BE_U_2(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL))
855 ND_PRINT("Bundle-ID %u: ", l2info.bundle);
856
857 p+=l2info.header_len;
858
859 /* first try the LSQ protos */
860 switch(l2info.proto) {
861 case JUNIPER_LSQ_L3_PROTO_IPV4:
862 /* IP traffic going to the RE would not have a cookie
863 * -> this must be incoming IS-IS over PPP
864 */
865 if (l2info.cookie[4] == (JUNIPER_LSQ_COOKIE_RE|JUNIPER_LSQ_COOKIE_DIR))
866 ppp_print(ndo, p, l2info.length);
867 else
868 ip_print(ndo, p, l2info.length);
869 ndo->ndo_ll_hdr_len += l2info.header_len;
870 return;
871 case JUNIPER_LSQ_L3_PROTO_IPV6:
872 ip6_print(ndo, p,l2info.length);
873 ndo->ndo_ll_hdr_len += l2info.header_len;
874 return;
875 case JUNIPER_LSQ_L3_PROTO_MPLS:
876 mpls_print(ndo, p, l2info.length);
877 ndo->ndo_ll_hdr_len += l2info.header_len;
878 return;
879 case JUNIPER_LSQ_L3_PROTO_ISO:
880 isoclns_print(ndo, p, l2info.length);
881 ndo->ndo_ll_hdr_len += l2info.header_len;
882 return;
883 default:
884 break;
885 }
886
887 /* zero length cookie ? */
888 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
889 switch (EXTRACT_BE_U_2(&l2info.cookie)) {
890 case PPP_OSI:
891 ppp_print(ndo, p - 2, l2info.length + 2);
892 break;
893 case (PPP_ADDRESS << 8 | PPP_CONTROL): /* fall through */
894 default:
895 ppp_print(ndo, p, l2info.length);
896 break;
897 }
898
899 ndo->ndo_ll_hdr_len += l2info.header_len;
900 }
901 #endif
902
903
904 #ifdef DLT_JUNIPER_MFR
905 void
906 juniper_mfr_if_print(netdissect_options *ndo,
907 const struct pcap_pkthdr *h, const u_char *p)
908 {
909 struct juniper_l2info_t l2info;
910
911 ndo->ndo_protocol = "juniper_mfr";
912 memset(&l2info, 0, sizeof(l2info));
913 l2info.pictype = DLT_JUNIPER_MFR;
914 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
915 ndo->ndo_ll_hdr_len += l2info.header_len;
916 return;
917 }
918
919 p+=l2info.header_len;
920
921 /* child-link ? */
922 if (l2info.cookie_len == 0) {
923 mfr_print(ndo, p, l2info.length);
924 ndo->ndo_ll_hdr_len += l2info.header_len;
925 return;
926 }
927
928 /* first try the LSQ protos */
929 if (l2info.cookie_len == AS_PIC_COOKIE_LEN) {
930 switch(l2info.proto) {
931 case JUNIPER_LSQ_L3_PROTO_IPV4:
932 ip_print(ndo, p, l2info.length);
933 ndo->ndo_ll_hdr_len += l2info.header_len;
934 return;
935 case JUNIPER_LSQ_L3_PROTO_IPV6:
936 ip6_print(ndo, p,l2info.length);
937 ndo->ndo_ll_hdr_len += l2info.header_len;
938 return;
939 case JUNIPER_LSQ_L3_PROTO_MPLS:
940 mpls_print(ndo, p, l2info.length);
941 ndo->ndo_ll_hdr_len += l2info.header_len;
942 return;
943 case JUNIPER_LSQ_L3_PROTO_ISO:
944 isoclns_print(ndo, p, l2info.length);
945 ndo->ndo_ll_hdr_len += l2info.header_len;
946 return;
947 default:
948 break;
949 }
950 ndo->ndo_ll_hdr_len += l2info.header_len;
951 return;
952 }
953
954 /* suppress Bundle-ID if frame was captured on a child-link */
955 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
956 if (ndo->ndo_eflag && EXTRACT_BE_U_4(l2info.cookie) != 1)
957 ND_PRINT("Bundle-ID %u, ", l2info.bundle);
958 switch (l2info.proto) {
959 case (LLCSAP_ISONS<<8 | LLCSAP_ISONS):
960 isoclns_print(ndo, p + 1, l2info.length - 1);
961 break;
962 case (LLC_UI<<8 | NLPID_Q933):
963 case (LLC_UI<<8 | NLPID_IP):
964 case (LLC_UI<<8 | NLPID_IP6):
965 /* pass IP{4,6} to the OSI layer for proper link-layer printing */
966 isoclns_print(ndo, p - 1, l2info.length + 1);
967 break;
968 default:
969 ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length);
970 }
971
972 ndo->ndo_ll_hdr_len += l2info.header_len;
973 }
974 #endif
975
976 #ifdef DLT_JUNIPER_MLFR
977 void
978 juniper_mlfr_if_print(netdissect_options *ndo,
979 const struct pcap_pkthdr *h, const u_char *p)
980 {
981 struct juniper_l2info_t l2info;
982
983 ndo->ndo_protocol = "juniper_mlfr";
984 l2info.pictype = DLT_JUNIPER_MLFR;
985 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
986 ndo->ndo_ll_hdr_len += l2info.header_len;
987 return;
988 }
989
990 p+=l2info.header_len;
991
992 /* suppress Bundle-ID if frame was captured on a child-link */
993 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
994 if (ndo->ndo_eflag && EXTRACT_BE_U_4(l2info.cookie) != 1)
995 ND_PRINT("Bundle-ID %u, ", l2info.bundle);
996 switch (l2info.proto) {
997 case (LLC_UI):
998 case (LLC_UI<<8):
999 isoclns_print(ndo, p, l2info.length);
1000 break;
1001 case (LLC_UI<<8 | NLPID_Q933):
1002 case (LLC_UI<<8 | NLPID_IP):
1003 case (LLC_UI<<8 | NLPID_IP6):
1004 /* pass IP{4,6} to the OSI layer for proper link-layer printing */
1005 isoclns_print(ndo, p - 1, l2info.length + 1);
1006 break;
1007 default:
1008 ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length);
1009 }
1010
1011 ndo->ndo_ll_hdr_len += l2info.header_len;
1012 }
1013 #endif
1014
1015 /*
1016 * ATM1 PIC cookie format
1017 *
1018 * +-----+-------------------------+-------------------------------+
1019 * |fmtid| vc index | channel ID |
1020 * +-----+-------------------------+-------------------------------+
1021 */
1022
1023 #ifdef DLT_JUNIPER_ATM1
1024 void
1025 juniper_atm1_if_print(netdissect_options *ndo,
1026 const struct pcap_pkthdr *h, const u_char *p)
1027 {
1028 int llc_hdrlen;
1029
1030 struct juniper_l2info_t l2info;
1031
1032 ndo->ndo_protocol = "juniper_atm1";
1033 l2info.pictype = DLT_JUNIPER_ATM1;
1034 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
1035 ndo->ndo_ll_hdr_len += l2info.header_len;
1036 return;
1037 }
1038
1039 p+=l2info.header_len;
1040
1041 if (l2info.cookie[0] == 0x80) { /* OAM cell ? */
1042 oam_print(ndo, p, l2info.length, ATM_OAM_NOHEC);
1043 ndo->ndo_ll_hdr_len += l2info.header_len;
1044 return;
1045 }
1046
1047 if (GET_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */
1048 GET_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */
1049
1050 llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
1051 if (llc_hdrlen > 0) {
1052 ndo->ndo_ll_hdr_len += l2info.header_len;
1053 return;
1054 }
1055 }
1056
1057 if (GET_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */
1058 isoclns_print(ndo, p + 1, l2info.length - 1);
1059 /* FIXME check if frame was recognized */
1060 ndo->ndo_ll_hdr_len += l2info.header_len;
1061 return;
1062 }
1063
1064 if (ip_heuristic_guess(ndo, p, l2info.length) != 0) { /* last try - vcmux encaps ? */
1065 ndo->ndo_ll_hdr_len += l2info.header_len;
1066 return;
1067 }
1068
1069 ndo->ndo_ll_hdr_len += l2info.header_len;
1070 }
1071 #endif
1072
1073 /*
1074 * ATM2 PIC cookie format
1075 *
1076 * +-------------------------------+---------+---+-----+-----------+
1077 * | channel ID | reserv |AAL| CCRQ| gap cnt |
1078 * +-------------------------------+---------+---+-----+-----------+
1079 */
1080
1081 #ifdef DLT_JUNIPER_ATM2
1082 void
1083 juniper_atm2_if_print(netdissect_options *ndo,
1084 const struct pcap_pkthdr *h, const u_char *p)
1085 {
1086 int llc_hdrlen;
1087
1088 struct juniper_l2info_t l2info;
1089
1090 ndo->ndo_protocol = "juniper_atm2";
1091 l2info.pictype = DLT_JUNIPER_ATM2;
1092 if (juniper_parse_header(ndo, p, h, &l2info) == 0) {
1093 ndo->ndo_ll_hdr_len += l2info.header_len;
1094 return;
1095 }
1096
1097 p+=l2info.header_len;
1098
1099 if (l2info.cookie[7] & ATM2_PKT_TYPE_MASK) { /* OAM cell ? */
1100 oam_print(ndo, p, l2info.length, ATM_OAM_NOHEC);
1101 ndo->ndo_ll_hdr_len += l2info.header_len;
1102 return;
1103 }
1104
1105 if (GET_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */
1106 GET_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */
1107
1108 llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
1109 if (llc_hdrlen > 0) {
1110 ndo->ndo_ll_hdr_len += l2info.header_len;
1111 return;
1112 }
1113 }
1114
1115 if (l2info.direction != JUNIPER_BPF_PKT_IN && /* ether-over-1483 encaps ? */
1116 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1117 (EXTRACT_BE_U_4(l2info.cookie) & ATM2_GAP_COUNT_MASK)) {
1118 ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
1119 ndo->ndo_ll_hdr_len += l2info.header_len;
1120 return;
1121 }
1122
1123 if (GET_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */
1124 isoclns_print(ndo, p + 1, l2info.length - 1);
1125 /* FIXME check if frame was recognized */
1126 ndo->ndo_ll_hdr_len += l2info.header_len;
1127 return;
1128 }
1129
1130 if(juniper_ppp_heuristic_guess(ndo, p, l2info.length) != 0) { /* PPPoA vcmux encaps ? */
1131 ndo->ndo_ll_hdr_len += l2info.header_len;
1132 return;
1133 }
1134
1135 if (ip_heuristic_guess(ndo, p, l2info.length) != 0) { /* last try - vcmux encaps ? */
1136 ndo->ndo_ll_hdr_len += l2info.header_len;
1137 return;
1138 }
1139
1140 ndo->ndo_ll_hdr_len += l2info.header_len;
1141 }
1142
1143 /* try to guess, based on all PPP protos that are supported in
1144 * a juniper router if the payload data is encapsulated using PPP */
1145 static int
1146 juniper_ppp_heuristic_guess(netdissect_options *ndo,
1147 const u_char *p, u_int length)
1148 {
1149 switch(GET_BE_U_2(p)) {
1150 case PPP_IP :
1151 case PPP_OSI :
1152 case PPP_MPLS_UCAST :
1153 case PPP_MPLS_MCAST :
1154 case PPP_IPCP :
1155 case PPP_OSICP :
1156 case PPP_MPLSCP :
1157 case PPP_LCP :
1158 case PPP_PAP :
1159 case PPP_CHAP :
1160 case PPP_ML :
1161 case PPP_IPV6 :
1162 case PPP_IPV6CP :
1163 ppp_print(ndo, p, length);
1164 break;
1165
1166 default:
1167 return 0; /* did not find a ppp header */
1168 break;
1169 }
1170 return 1; /* we printed a ppp packet */
1171 }
1172 #endif
1173
1174 static int
1175 ip_heuristic_guess(netdissect_options *ndo,
1176 const u_char *p, u_int length)
1177 {
1178 switch(GET_U_1(p)) {
1179 case 0x45:
1180 case 0x46:
1181 case 0x47:
1182 case 0x48:
1183 case 0x49:
1184 case 0x4a:
1185 case 0x4b:
1186 case 0x4c:
1187 case 0x4d:
1188 case 0x4e:
1189 case 0x4f:
1190 ip_print(ndo, p, length);
1191 break;
1192 case 0x60:
1193 case 0x61:
1194 case 0x62:
1195 case 0x63:
1196 case 0x64:
1197 case 0x65:
1198 case 0x66:
1199 case 0x67:
1200 case 0x68:
1201 case 0x69:
1202 case 0x6a:
1203 case 0x6b:
1204 case 0x6c:
1205 case 0x6d:
1206 case 0x6e:
1207 case 0x6f:
1208 ip6_print(ndo, p, length);
1209 break;
1210 default:
1211 return 0; /* did not find a ip header */
1212 break;
1213 }
1214 return 1; /* we printed an v4/v6 packet */
1215 }
1216
1217 static int
1218 juniper_read_tlv_value(netdissect_options *ndo,
1219 const u_char *p, u_int tlv_type, u_int tlv_len)
1220 {
1221 int tlv_value;
1222
1223 /* TLVs < 128 are little endian encoded */
1224 if (tlv_type < 128) {
1225 switch (tlv_len) {
1226 case 1:
1227 tlv_value = GET_U_1(p);
1228 break;
1229 case 2:
1230 tlv_value = GET_LE_U_2(p);
1231 break;
1232 case 3:
1233 tlv_value = GET_LE_U_3(p);
1234 break;
1235 case 4:
1236 tlv_value = GET_LE_U_4(p);
1237 break;
1238 default:
1239 tlv_value = -1;
1240 break;
1241 }
1242 } else {
1243 /* TLVs >= 128 are big endian encoded */
1244 switch (tlv_len) {
1245 case 1:
1246 tlv_value = GET_U_1(p);
1247 break;
1248 case 2:
1249 tlv_value = GET_BE_U_2(p);
1250 break;
1251 case 3:
1252 tlv_value = GET_BE_U_3(p);
1253 break;
1254 case 4:
1255 tlv_value = GET_BE_U_4(p);
1256 break;
1257 default:
1258 tlv_value = -1;
1259 break;
1260 }
1261 }
1262 return tlv_value;
1263 }
1264
1265 static int
1266 juniper_parse_header(netdissect_options *ndo,
1267 const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info)
1268 {
1269 const struct juniper_cookie_table_t *lp = juniper_cookie_table;
1270 u_int idx, jnx_ext_len, jnx_header_len = 0;
1271 uint8_t tlv_type,tlv_len;
1272 #ifdef DLT_JUNIPER_ATM2
1273 uint32_t control_word;
1274 #endif
1275 int tlv_value;
1276 const u_char *tptr;
1277
1278
1279 l2info->header_len = 0;
1280 l2info->cookie_len = 0;
1281 l2info->proto = 0;
1282
1283
1284 l2info->length = h->len;
1285 l2info->caplen = h->caplen;
1286 ND_TCHECK_4(p);
1287 l2info->flags = GET_U_1(p + 3);
1288 l2info->direction = GET_U_1(p + 3) & JUNIPER_BPF_PKT_IN;
1289
1290 if (GET_BE_U_3(p) != JUNIPER_MGC_NUMBER) { /* magic number found ? */
1291 ND_PRINT("no magic-number found!");
1292 return 0;
1293 }
1294
1295 if (ndo->ndo_eflag) /* print direction */
1296 ND_PRINT("%3s ", tok2str(juniper_direction_values, "---", l2info->direction));
1297
1298 /* magic number + flags */
1299 jnx_header_len = 4;
1300
1301 if (ndo->ndo_vflag > 1)
1302 ND_PRINT("\n\tJuniper PCAP Flags [%s]",
1303 bittok2str(jnx_flag_values, "none", l2info->flags));
1304
1305 /* extensions present ? - calculate how much bytes to skip */
1306 if ((l2info->flags & JUNIPER_BPF_EXT ) == JUNIPER_BPF_EXT ) {
1307
1308 tptr = p+jnx_header_len;
1309
1310 /* ok to read extension length ? */
1311 jnx_ext_len = GET_BE_U_2(tptr);
1312 jnx_header_len += 2;
1313 tptr +=2;
1314
1315 /* nail up the total length -
1316 * just in case something goes wrong
1317 * with TLV parsing */
1318 jnx_header_len += jnx_ext_len;
1319
1320 if (ndo->ndo_vflag > 1)
1321 ND_PRINT(", PCAP Extension(s) total length %u", jnx_ext_len);
1322
1323 ND_TCHECK_LEN(tptr, jnx_ext_len);
1324 while (jnx_ext_len > JUNIPER_EXT_TLV_OVERHEAD) {
1325 tlv_type = GET_U_1(tptr);
1326 tptr++;
1327 tlv_len = GET_U_1(tptr);
1328 tptr++;
1329 tlv_value = 0;
1330
1331 /* sanity checks */
1332 if (tlv_type == 0 || tlv_len == 0)
1333 break;
1334 if (tlv_len+JUNIPER_EXT_TLV_OVERHEAD > jnx_ext_len)
1335 goto trunc;
1336
1337 if (ndo->ndo_vflag > 1)
1338 ND_PRINT("\n\t %s Extension TLV #%u, length %u, value ",
1339 tok2str(jnx_ext_tlv_values,"Unknown",tlv_type),
1340 tlv_type,
1341 tlv_len);
1342
1343 tlv_value = juniper_read_tlv_value(ndo, tptr, tlv_type, tlv_len);
1344 switch (tlv_type) {
1345 case JUNIPER_EXT_TLV_IFD_NAME:
1346 /* FIXME */
1347 break;
1348 case JUNIPER_EXT_TLV_IFD_MEDIATYPE:
1349 case JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE:
1350 if (tlv_value != -1) {
1351 if (ndo->ndo_vflag > 1)
1352 ND_PRINT("%s (%u)",
1353 tok2str(juniper_ifmt_values, "Unknown", tlv_value),
1354 tlv_value);
1355 }
1356 break;
1357 case JUNIPER_EXT_TLV_IFL_ENCAPS:
1358 case JUNIPER_EXT_TLV_TTP_IFL_ENCAPS:
1359 if (tlv_value != -1) {
1360 if (ndo->ndo_vflag > 1)
1361 ND_PRINT("%s (%u)",
1362 tok2str(juniper_ifle_values, "Unknown", tlv_value),
1363 tlv_value);
1364 }
1365 break;
1366 case JUNIPER_EXT_TLV_IFL_IDX: /* fall through */
1367 case JUNIPER_EXT_TLV_IFL_UNIT:
1368 case JUNIPER_EXT_TLV_IFD_IDX:
1369 default:
1370 if (tlv_value != -1) {
1371 if (ndo->ndo_vflag > 1)
1372 ND_PRINT("%u", tlv_value);
1373 }
1374 break;
1375 }
1376
1377 tptr+=tlv_len;
1378 jnx_ext_len -= tlv_len+JUNIPER_EXT_TLV_OVERHEAD;
1379 }
1380
1381 if (ndo->ndo_vflag > 1)
1382 ND_PRINT("\n\t-----original packet-----\n\t");
1383 }
1384
1385 if ((l2info->flags & JUNIPER_BPF_NO_L2 ) == JUNIPER_BPF_NO_L2 ) {
1386 if (ndo->ndo_eflag)
1387 ND_PRINT("no-L2-hdr, ");
1388
1389 /* there is no link-layer present -
1390 * perform the v4/v6 heuristics
1391 * to figure out what it is
1392 */
1393 ND_TCHECK_1(p + (jnx_header_len + 4));
1394 if (ip_heuristic_guess(ndo, p + jnx_header_len + 4,
1395 l2info->length - (jnx_header_len + 4)) == 0)
1396 ND_PRINT("no IP-hdr found!");
1397
1398 l2info->header_len=jnx_header_len+4;
1399 return 0; /* stop parsing the output further */
1400
1401 }
1402 l2info->header_len = jnx_header_len;
1403 p+=l2info->header_len;
1404 l2info->length -= l2info->header_len;
1405 l2info->caplen -= l2info->header_len;
1406
1407 /* search through the cookie table and copy values matching for our PIC type */
1408 ND_TCHECK_1(p);
1409 while (lp->s != NULL) {
1410 if (lp->pictype == l2info->pictype) {
1411
1412 l2info->cookie_len += lp->cookie_len;
1413
1414 switch (GET_U_1(p)) {
1415 case LS_COOKIE_ID:
1416 l2info->cookie_type = LS_COOKIE_ID;
1417 l2info->cookie_len += 2;
1418 break;
1419 case AS_COOKIE_ID:
1420 l2info->cookie_type = AS_COOKIE_ID;
1421 l2info->cookie_len = 8;
1422 break;
1423
1424 default:
1425 l2info->bundle = l2info->cookie[0];
1426 break;
1427 }
1428
1429
1430 #ifdef DLT_JUNIPER_MFR
1431 /* MFR child links don't carry cookies */
1432 if (l2info->pictype == DLT_JUNIPER_MFR &&
1433 (GET_U_1(p) & MFR_BE_MASK) == MFR_BE_MASK) {
1434 l2info->cookie_len = 0;
1435 }
1436 #endif
1437
1438 l2info->header_len += l2info->cookie_len;
1439 l2info->length -= l2info->cookie_len;
1440 l2info->caplen -= l2info->cookie_len;
1441
1442 if (ndo->ndo_eflag)
1443 ND_PRINT("%s-PIC, cookie-len %u",
1444 lp->s,
1445 l2info->cookie_len);
1446
1447 if (l2info->cookie_len > 8) {
1448 nd_print_invalid(ndo);
1449 return 0;
1450 }
1451
1452 if (l2info->cookie_len > 0) {
1453 ND_TCHECK_LEN(p, l2info->cookie_len);
1454 if (ndo->ndo_eflag)
1455 ND_PRINT(", cookie 0x");
1456 for (idx = 0; idx < l2info->cookie_len; idx++) {
1457 l2info->cookie[idx] = GET_U_1(p + idx); /* copy cookie data */
1458 if (ndo->ndo_eflag) ND_PRINT("%02x", GET_U_1(p + idx));
1459 }
1460 }
1461
1462 if (ndo->ndo_eflag) ND_PRINT(": "); /* print demarc b/w L2/L3*/
1463
1464
1465 l2info->proto = GET_BE_U_2(p + l2info->cookie_len);
1466 break;
1467 }
1468 ++lp;
1469 }
1470 p+=l2info->cookie_len;
1471
1472 /* DLT_ specific parsing */
1473 switch(l2info->pictype) {
1474 #ifdef DLT_JUNIPER_MLPPP
1475 case DLT_JUNIPER_MLPPP:
1476 switch (l2info->cookie_type) {
1477 case LS_COOKIE_ID:
1478 l2info->bundle = l2info->cookie[1];
1479 break;
1480 case AS_COOKIE_ID:
1481 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1482 l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
1483 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
1484 break;
1485 default:
1486 l2info->bundle = l2info->cookie[0];
1487 break;
1488 }
1489 break;
1490 #endif
1491 #ifdef DLT_JUNIPER_MLFR
1492 case DLT_JUNIPER_MLFR:
1493 switch (l2info->cookie_type) {
1494 case LS_COOKIE_ID:
1495 l2info->bundle = l2info->cookie[1];
1496 l2info->proto = GET_BE_U_2(p);
1497 l2info->header_len += 2;
1498 l2info->length -= 2;
1499 l2info->caplen -= 2;
1500 break;
1501 case AS_COOKIE_ID:
1502 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1503 l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
1504 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
1505 break;
1506 default:
1507 l2info->bundle = l2info->cookie[0];
1508 l2info->header_len += 2;
1509 l2info->length -= 2;
1510 l2info->caplen -= 2;
1511 break;
1512 }
1513 break;
1514 #endif
1515 #ifdef DLT_JUNIPER_MFR
1516 case DLT_JUNIPER_MFR:
1517 switch (l2info->cookie_type) {
1518 case LS_COOKIE_ID:
1519 l2info->bundle = l2info->cookie[1];
1520 l2info->proto = GET_BE_U_2(p);
1521 l2info->header_len += 2;
1522 l2info->length -= 2;
1523 l2info->caplen -= 2;
1524 break;
1525 case AS_COOKIE_ID:
1526 /* use EXTRACT_, not GET_ (not packet buffer pointer) */
1527 l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
1528 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
1529 break;
1530 default:
1531 l2info->bundle = l2info->cookie[0];
1532 break;
1533 }
1534 break;
1535 #endif
1536 #ifdef DLT_JUNIPER_ATM2
1537 case DLT_JUNIPER_ATM2:
1538 ND_TCHECK_4(p);
1539 /* ATM cell relay control word present ? */
1540 if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK) {
1541 control_word = GET_BE_U_4(p);
1542 /* some control word heuristics */
1543 switch(control_word) {
1544 case 0: /* zero control word */
1545 case 0x08000000: /* < JUNOS 7.4 control-word */
1546 case 0x08380000: /* cntl word plus cell length (56) >= JUNOS 7.4*/
1547 l2info->header_len += 4;
1548 break;
1549 default:
1550 break;
1551 }
1552
1553 if (ndo->ndo_eflag)
1554 ND_PRINT("control-word 0x%08x ", control_word);
1555 }
1556 break;
1557 #endif
1558 #ifdef DLT_JUNIPER_GGSN
1559 case DLT_JUNIPER_GGSN:
1560 break;
1561 #endif
1562 #ifdef DLT_JUNIPER_ATM1
1563 case DLT_JUNIPER_ATM1:
1564 break;
1565 #endif
1566 #ifdef DLT_JUNIPER_PPP
1567 case DLT_JUNIPER_PPP:
1568 break;
1569 #endif
1570 #ifdef DLT_JUNIPER_CHDLC
1571 case DLT_JUNIPER_CHDLC:
1572 break;
1573 #endif
1574 #ifdef DLT_JUNIPER_ETHER
1575 case DLT_JUNIPER_ETHER:
1576 break;
1577 #endif
1578 #ifdef DLT_JUNIPER_FRELAY
1579 case DLT_JUNIPER_FRELAY:
1580 break;
1581 #endif
1582
1583 default:
1584 ND_PRINT("Unknown Juniper DLT_ type %u: ", l2info->pictype);
1585 break;
1586 }
1587
1588 if (ndo->ndo_eflag > 1)
1589 ND_PRINT("hlen %u, proto 0x%04x, ", l2info->header_len, l2info->proto);
1590
1591 return 1; /* everything went ok so far. continue parsing */
1592 trunc:
1593 nd_print_trunc(ndo);
1594 return 0;
1595 }
1596 #endif /* defined(DLT_JUNIPER_GGSN) || defined(DLT_JUNIPER_ES) || \
1597 defined(DLT_JUNIPER_MONITOR) || defined(DLT_JUNIPER_SERVICES) || \
1598 defined(DLT_JUNIPER_PPPOE) || defined(DLT_JUNIPER_ETHER) || \
1599 defined(DLT_JUNIPER_PPP) || defined(DLT_JUNIPER_FRELAY) || \
1600 defined(DLT_JUNIPER_CHDLC) || defined(DLT_JUNIPER_PPPOE_ATM) || \
1601 defined(DLT_JUNIPER_MLPPP) || defined(DLT_JUNIPER_MFR) || \
1602 defined(DLT_JUNIPER_MLFR) || defined(DLT_JUNIPER_ATM1) || \
1603 defined(DLT_JUNIPER_ATM2) */
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