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CONTRIBUTION: mention the nd_ types.
[tcpdump] / print-radius.c
1 /*
2 * Copyright (C) 2000 Alfredo Andres Omella. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 * 3. The names of the authors may not be used to endorse or promote
15 * products derived from this software without specific prior
16 * written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 */
22
23 /* \summary: Radius protocol printer */
24
25 /*
26 * Radius printer routines as specified on:
27 *
28 * RFC 2865:
29 * "Remote Authentication Dial In User Service (RADIUS)"
30 *
31 * RFC 2866:
32 * "RADIUS Accounting"
33 *
34 * RFC 2867:
35 * "RADIUS Accounting Modifications for Tunnel Protocol Support"
36 *
37 * RFC 2868:
38 * "RADIUS Attributes for Tunnel Protocol Support"
39 *
40 * RFC 2869:
41 * "RADIUS Extensions"
42 *
43 * RFC 3162:
44 * "RADIUS and IPv6"
45 *
46 * RFC 3580:
47 * "IEEE 802.1X Remote Authentication Dial In User Service (RADIUS)"
48 * "Usage Guidelines"
49 *
50 * RFC 4072:
51 * "Diameter Extensible Authentication Protocol (EAP) Application"
52 *
53 * RFC 4675:
54 * "RADIUS Attributes for Virtual LAN and Priority Support"
55 *
56 * RFC 4818:
57 * "RADIUS Delegated-IPv6-Prefix Attribute"
58 *
59 * RFC 4849:
60 * "RADIUS Filter Rule Attribute"
61 *
62 * RFC 5090:
63 * "RADIUS Extension for Digest Authentication"
64 *
65 * RFC 5176:
66 * "Dynamic Authorization Extensions to RADIUS"
67 *
68 * RFC 5447:
69 * "Diameter Mobile IPv6"
70 *
71 * RFC 5580:
72 * "Carrying Location Objects in RADIUS and Diameter"
73 *
74 * RFC 6572:
75 * "RADIUS Support for Proxy Mobile IPv6"
76 *
77 * RFC 7155:
78 * "Diameter Network Access Server Application"
79 *
80 * Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15
81 *
82 * TODO: Among other things to print ok MacIntosh and Vendor values
83 */
84
85 #ifdef HAVE_CONFIG_H
86 #include <config.h>
87 #endif
88
89 #include "netdissect-stdinc.h"
90
91 #include <string.h>
92
93 #include "netdissect-ctype.h"
94
95 #include "netdissect.h"
96 #include "addrtoname.h"
97 #include "extract.h"
98 #include "oui.h"
99 #include "ntp.h"
100
101
102 #define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) )
103
104 #define PRINT_HEX(bytes_len, ptr_data) \
105 while(bytes_len) \
106 { \
107 ND_PRINT("%02X", GET_U_1(ptr_data)); \
108 ptr_data++; \
109 bytes_len--; \
110 }
111
112
113 /* Radius packet codes */
114 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-27 */
115 #define RADCMD_ACCESS_REQ 1 /* Access-Request */
116 #define RADCMD_ACCESS_ACC 2 /* Access-Accept */
117 #define RADCMD_ACCESS_REJ 3 /* Access-Reject */
118 #define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */
119 #define RADCMD_ACCOUN_RES 5 /* Accounting-Response */
120 #define RADCMD_ACCESS_CHA 11 /* Access-Challenge */
121 #define RADCMD_STATUS_SER 12 /* Status-Server */
122 #define RADCMD_STATUS_CLI 13 /* Status-Client */
123 #define RADCMD_DISCON_REQ 40 /* Disconnect-Request */
124 #define RADCMD_DISCON_ACK 41 /* Disconnect-ACK */
125 #define RADCMD_DISCON_NAK 42 /* Disconnect-NAK */
126 #define RADCMD_COA_REQ 43 /* CoA-Request */
127 #define RADCMD_COA_ACK 44 /* CoA-ACK */
128 #define RADCMD_COA_NAK 45 /* CoA-NAK */
129 #define RADCMD_RESERVED 255 /* Reserved */
130
131 static const struct tok radius_command_values[] = {
132 { RADCMD_ACCESS_REQ, "Access-Request" },
133 { RADCMD_ACCESS_ACC, "Access-Accept" },
134 { RADCMD_ACCESS_REJ, "Access-Reject" },
135 { RADCMD_ACCOUN_REQ, "Accounting-Request" },
136 { RADCMD_ACCOUN_RES, "Accounting-Response" },
137 { RADCMD_ACCESS_CHA, "Access-Challenge" },
138 { RADCMD_STATUS_SER, "Status-Server" },
139 { RADCMD_STATUS_CLI, "Status-Client" },
140 { RADCMD_DISCON_REQ, "Disconnect-Request" },
141 { RADCMD_DISCON_ACK, "Disconnect-ACK" },
142 { RADCMD_DISCON_NAK, "Disconnect-NAK" },
143 { RADCMD_COA_REQ, "CoA-Request" },
144 { RADCMD_COA_ACK, "CoA-ACK" },
145 { RADCMD_COA_NAK, "CoA-NAK" },
146 { RADCMD_RESERVED, "Reserved" },
147 { 0, NULL}
148 };
149
150 /********************************/
151 /* Begin Radius Attribute types */
152 /********************************/
153 #define SERV_TYPE 6
154 #define FRM_IPADDR 8
155 #define LOG_IPHOST 14
156 #define LOG_SERVICE 15
157 #define FRM_IPX 23
158 #define SESSION_TIMEOUT 27
159 #define IDLE_TIMEOUT 28
160 #define FRM_ATALK_LINK 37
161 #define FRM_ATALK_NETWORK 38
162
163 #define ACCT_DELAY 41
164 #define ACCT_SESSION_TIME 46
165
166 #define EGRESS_VLAN_ID 56
167 #define EGRESS_VLAN_NAME 58
168
169 #define TUNNEL_TYPE 64
170 #define TUNNEL_MEDIUM 65
171 #define TUNNEL_CLIENT_END 66
172 #define TUNNEL_SERVER_END 67
173 #define TUNNEL_PASS 69
174
175 #define ARAP_PASS 70
176 #define ARAP_FEATURES 71
177
178 #define EAP_MESSAGE 79
179
180 #define TUNNEL_PRIV_GROUP 81
181 #define TUNNEL_ASSIGN_ID 82
182 #define TUNNEL_PREFERENCE 83
183
184 #define ARAP_CHALLENGE_RESP 84
185 #define ACCT_INT_INTERVAL 85
186
187 #define TUNNEL_CLIENT_AUTH 90
188 #define TUNNEL_SERVER_AUTH 91
189
190 #define ERROR_CAUSE 101
191 /********************************/
192 /* End Radius Attribute types */
193 /********************************/
194
195 #define RFC4675_TAGGED 0x31
196 #define RFC4675_UNTAGGED 0x32
197
198 static const struct tok rfc4675_tagged[] = {
199 { RFC4675_TAGGED, "Tagged" },
200 { RFC4675_UNTAGGED, "Untagged" },
201 { 0, NULL}
202 };
203
204
205 static void print_attr_string(netdissect_options *, const u_char *, u_int, u_short );
206 static void print_attr_num(netdissect_options *, const u_char *, u_int, u_short );
207 static void print_vendor_attr(netdissect_options *, const u_char *, u_int, u_short );
208 static void print_attr_address(netdissect_options *, const u_char *, u_int, u_short);
209 static void print_attr_address6(netdissect_options *, const u_char *, u_int, u_short);
210 static void print_attr_netmask6(netdissect_options *, const u_char *, u_int, u_short);
211 static void print_attr_mip6_home_link_prefix(netdissect_options *, const u_char *, u_int, u_short);
212 static void print_attr_operator_name(netdissect_options *, const u_char *, u_int, u_short);
213 static void print_attr_location_information(netdissect_options *, const u_char *, u_int, u_short);
214 static void print_attr_location_data(netdissect_options *, const u_char *, u_int, u_short);
215 static void print_basic_location_policy_rules(netdissect_options *, const u_char *, u_int, u_short);
216 static void print_attr_time(netdissect_options *, const u_char *, u_int, u_short);
217 static void print_attr_vector64(netdissect_options *, const u_char *, u_int, u_short);
218 static void print_attr_strange(netdissect_options *, const u_char *, u_int, u_short);
219
220
221 struct radius_hdr { nd_uint8_t code; /* Radius packet code */
222 nd_uint8_t id; /* Radius packet id */
223 nd_uint16_t len; /* Radius total length */
224 nd_byte auth[16]; /* Authenticator */
225 };
226
227 #define MIN_RADIUS_LEN 20
228
229 struct radius_attr { nd_uint8_t type; /* Attribute type */
230 nd_uint8_t len; /* Attribute length */
231 };
232
233
234 /* Service-Type Attribute standard values */
235 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-4 */
236 static const char *serv_type[]={ NULL,
237 "Login",
238 "Framed",
239 "Callback Login",
240 "Callback Framed",
241 "Outbound",
242 "Administrative",
243 "NAS Prompt",
244 "Authenticate Only",
245 "Callback NAS Prompt",
246 /* ^ [0, 9] ^ */
247 "Call Check",
248 "Callback Administrative",
249 "Voice",
250 "Fax",
251 "Modem Relay",
252 "IAPP-Register",
253 "IAPP-AP-Check",
254 "Authorize Only",
255 "Framed-Management",
256 "Additional-Authorization",
257 /* ^ [10, 19] ^ */
258 };
259
260 /* Framed-Protocol Attribute standard values */
261 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-5 */
262 static const char *frm_proto[]={ NULL,
263 "PPP",
264 "SLIP",
265 "ARAP",
266 "Gandalf proprietary",
267 "Xylogics IPX/SLIP",
268 "X.75 Synchronous",
269 "GPRS PDP Context",
270 };
271
272 /* Framed-Routing Attribute standard values */
273 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-6 */
274 static const char *frm_routing[]={ "None",
275 "Send",
276 "Listen",
277 "Send&Listen",
278 };
279
280 /* Framed-Compression Attribute standard values */
281 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-7 */
282 static const char *frm_comp[]={ "None",
283 "VJ TCP/IP",
284 "IPX",
285 "Stac-LZS",
286 };
287
288 /* Login-Service Attribute standard values */
289 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-8 */
290 static const char *login_serv[]={ "Telnet",
291 "Rlogin",
292 "TCP Clear",
293 "PortMaster(proprietary)",
294 "LAT",
295 "X.25-PAD",
296 "X.25-T3POS",
297 "Unassigned",
298 "TCP Clear Quiet",
299 };
300
301
302 /* Termination-Action Attribute standard values */
303 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-9 */
304 static const char *term_action[]={ "Default",
305 "RADIUS-Request",
306 };
307
308 /* Ingress-Filters Attribute standard values */
309 static const char *ingress_filters[]={ NULL,
310 "Enabled",
311 "Disabled",
312 };
313
314 /* NAS-Port-Type Attribute standard values */
315 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-13 */
316 static const char *nas_port_type[]={ "Async",
317 "Sync",
318 "ISDN Sync",
319 "ISDN Async V.120",
320 "ISDN Async V.110",
321 "Virtual",
322 "PIAFS",
323 "HDLC Clear Channel",
324 "X.25",
325 "X.75",
326 /* ^ [0, 9] ^ */
327 "G.3 Fax",
328 "SDSL",
329 "ADSL-CAP",
330 "ADSL-DMT",
331 "ISDN-DSL",
332 "Ethernet",
333 "xDSL",
334 "Cable",
335 "Wireless - Other",
336 "Wireless - IEEE 802.11",
337 /* ^ [10, 19] ^ */
338 "Token-Ring",
339 "FDDI",
340 "Wireless - CDMA200",
341 "Wireless - UMTS",
342 "Wireless - 1X-EV",
343 "IAPP",
344 "FTTP",
345 "Wireless - IEEE 802.16",
346 "Wireless - IEEE 802.20",
347 "Wireless - IEEE 802.22",
348 /* ^ [20, 29] ^ */
349 "PPPoA",
350 "PPPoEoA",
351 "PPPoEoE",
352 "PPPoEoVLAN",
353 "PPPoEoQinQ",
354 "xPON",
355 "Wireless - XGP",
356 "WiMAX Pre-Release 8 IWK Function",
357 "WIMAX-WIFI-IWK",
358 "WIMAX-SFF",
359 /* ^ [30, 39] ^ */
360 "WIMAX-HA-LMA",
361 "WIMAX-DHCP",
362 "WIMAX-LBS",
363 "WIMAX-WVS",
364 };
365
366 /* Acct-Status-Type Accounting Attribute standard values */
367 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-10 */
368 static const char *acct_status[]={ NULL,
369 "Start",
370 "Stop",
371 "Interim-Update",
372 "Unassigned",
373 "Unassigned",
374 "Unassigned",
375 "Accounting-On",
376 "Accounting-Off",
377 "Tunnel-Start",
378 /* ^ [0, 9] ^ */
379 "Tunnel-Stop",
380 "Tunnel-Reject",
381 "Tunnel-Link-Start",
382 "Tunnel-Link-Stop",
383 "Tunnel-Link-Reject",
384 "Failed",
385 };
386
387 /* Acct-Authentic Accounting Attribute standard values */
388 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-11 */
389 static const char *acct_auth[]={ NULL,
390 "RADIUS",
391 "Local",
392 "Remote",
393 "Diameter",
394 };
395
396 /* Acct-Terminate-Cause Accounting Attribute standard values */
397 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-12 */
398 static const char *acct_term[]={ NULL,
399 "User Request",
400 "Lost Carrier",
401 "Lost Service",
402 "Idle Timeout",
403 "Session Timeout",
404 "Admin Reset",
405 "Admin Reboot",
406 "Port Error",
407 "NAS Error",
408 /* ^ [0, 9] ^ */
409 "NAS Request",
410 "NAS Reboot",
411 "Port Unneeded",
412 "Port Preempted",
413 "Port Suspended",
414 "Service Unavailable",
415 "Callback",
416 "User Error",
417 "Host Request",
418 "Supplicant Restart",
419 /* ^ [10, 19] ^ */
420 "Reauthentication Failure",
421 "Port Reinitialized",
422 "Port Administratively Disabled",
423 "Lost Power",
424 };
425
426 /* Tunnel-Type Attribute standard values */
427 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-14 */
428 static const char *tunnel_type[]={ NULL,
429 "PPTP",
430 "L2F",
431 "L2TP",
432 "ATMP",
433 "VTP",
434 "AH",
435 "IP-IP",
436 "MIN-IP-IP",
437 "ESP",
438 /* ^ [0, 9] ^ */
439 "GRE",
440 "DVS",
441 "IP-in-IP Tunneling",
442 "VLAN",
443 };
444
445 /* Tunnel-Medium-Type Attribute standard values */
446 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-15 */
447 static const char *tunnel_medium[]={ NULL,
448 "IPv4",
449 "IPv6",
450 "NSAP",
451 "HDLC",
452 "BBN 1822",
453 "802",
454 "E.163",
455 "E.164",
456 "F.69",
457 /* ^ [0, 9] ^ */
458 "X.121",
459 "IPX",
460 "Appletalk",
461 "Decnet IV",
462 "Banyan Vines",
463 "E.164 with NSAP subaddress",
464 };
465
466 /* ARAP-Zone-Access Attribute standard values */
467 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-16 */
468 static const char *arap_zone[]={ NULL,
469 "Only access to dfl zone",
470 "Use zone filter inc.",
471 "Not used",
472 "Use zone filter exc.",
473 };
474
475 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-17 */
476 static const char *prompt[]={ "No Echo",
477 "Echo",
478 };
479
480 /* Error-Cause standard values */
481 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-18 */
482 #define ERROR_CAUSE_RESIDUAL_CONTEXT_REMOVED 201
483 #define ERROR_CAUSE_INVALID_EAP_PACKET 202
484 #define ERROR_CAUSE_UNSUPPORTED_ATTRIBUTE 401
485 #define ERROR_CAUSE_MISSING_ATTRIBUTE 402
486 #define ERROR_CAUSE_NAS_IDENTIFICATION_MISMATCH 403
487 #define ERROR_CAUSE_INVALID_REQUEST 404
488 #define ERROR_CAUSE_UNSUPPORTED_SERVICE 405
489 #define ERROR_CAUSE_UNSUPPORTED_EXTENSION 406
490 #define ERROR_CAUSE_INVALID_ATTRIBUTE_VALUE 407
491 #define ERROR_CAUSE_ADMINISTRATIVELY_PROHIBITED 501
492 #define ERROR_CAUSE_PROXY_REQUEST_NOT_ROUTABLE 502
493 #define ERROR_CAUSE_SESSION_CONTEXT_NOT_FOUND 503
494 #define ERROR_CAUSE_SESSION_CONTEXT_NOT_REMOVABLE 504
495 #define ERROR_CAUSE_PROXY_PROCESSING_ERROR 505
496 #define ERROR_CAUSE_RESOURCES_UNAVAILABLE 506
497 #define ERROR_CAUSE_REQUEST_INITIATED 507
498 #define ERROR_CAUSE_MULTIPLE_SESSION_SELECTION_UNSUPPORTED 508
499 #define ERROR_CAUSE_LOCATION_INFO_REQUIRED 509
500 static const struct tok errorcausetype[] = {
501 { ERROR_CAUSE_RESIDUAL_CONTEXT_REMOVED, "Residual Session Context Removed" },
502 { ERROR_CAUSE_INVALID_EAP_PACKET, "Invalid EAP Packet (Ignored)" },
503 { ERROR_CAUSE_UNSUPPORTED_ATTRIBUTE, "Unsupported Attribute" },
504 { ERROR_CAUSE_MISSING_ATTRIBUTE, "Missing Attribute" },
505 { ERROR_CAUSE_NAS_IDENTIFICATION_MISMATCH, "NAS Identification Mismatch" },
506 { ERROR_CAUSE_INVALID_REQUEST, "Invalid Request" },
507 { ERROR_CAUSE_UNSUPPORTED_SERVICE, "Unsupported Service" },
508 { ERROR_CAUSE_UNSUPPORTED_EXTENSION, "Unsupported Extension" },
509 { ERROR_CAUSE_INVALID_ATTRIBUTE_VALUE, "Invalid Attribute Value" },
510 { ERROR_CAUSE_ADMINISTRATIVELY_PROHIBITED, "Administratively Prohibited" },
511 { ERROR_CAUSE_PROXY_REQUEST_NOT_ROUTABLE, "Request Not Routable (Proxy)" },
512 { ERROR_CAUSE_SESSION_CONTEXT_NOT_FOUND, "Session Context Not Found" },
513 { ERROR_CAUSE_SESSION_CONTEXT_NOT_REMOVABLE, "Session Context Not Removable" },
514 { ERROR_CAUSE_PROXY_PROCESSING_ERROR, "Other Proxy Processing Error" },
515 { ERROR_CAUSE_RESOURCES_UNAVAILABLE, "Resources Unavailable" },
516 { ERROR_CAUSE_REQUEST_INITIATED, "Request Initiated" },
517 { ERROR_CAUSE_MULTIPLE_SESSION_SELECTION_UNSUPPORTED, "Multiple Session Selection Unsupported" },
518 { ERROR_CAUSE_LOCATION_INFO_REQUIRED, "Location Info Required" },
519 { 0, NULL }
520 };
521
522 /* MIP6-Feature-Vector standard values */
523 /* https://www.iana.org/assignments/aaa-parameters/aaa-parameters.xhtml */
524 #define MIP6_INTEGRATED 0x0000000000000001
525 #define LOCAL_HOME_AGENT_ASSIGNMENT 0x0000000000000002
526 #define PMIP6_SUPPORTED 0x0000010000000000
527 #define IP4_HOA_SUPPORTED 0x0000020000000000
528 #define LOCAL_MAG_ROUTING_SUPPORTED 0x0000040000000000
529 #define ASSIGN_LOCAL_IP 0x0000080000000000
530 #define MIP4_SUPPORTED 0x0000100000000000
531 #define OPTIMIZED_IDLE_MODE_MOBILITY 0x0000200000000000
532 #define GTPv2_SUPPORTED 0x0000400000000000
533 #define IP4_TRANSPORT_SUPPORTED 0x0000800000000000
534 #define IP4_HOA_ONLY_SUPPORTED 0x0001000000000000
535 #define INTER_MAG_ROUTING_SUPPORTED 0x0002000000000000
536 static const struct mip6_feature_vector {
537 uint64_t v;
538 const char *s;
539 } mip6_feature_vector[] = {
540 { MIP6_INTEGRATED, "MIP6_INTEGRATED" },
541 { LOCAL_HOME_AGENT_ASSIGNMENT, "LOCAL_HOME_AGENT_ASSIGNMENT" },
542 { PMIP6_SUPPORTED, "PMIP6_SUPPORTED" },
543 { IP4_HOA_SUPPORTED, "IP4_HOA_SUPPORTED" },
544 { LOCAL_MAG_ROUTING_SUPPORTED, "LOCAL_MAG_ROUTING_SUPPORTED" },
545 { ASSIGN_LOCAL_IP, "ASSIGN_LOCAL_IP" },
546 { MIP4_SUPPORTED, "MIP4_SUPPORTED" },
547 { OPTIMIZED_IDLE_MODE_MOBILITY, "OPTIMIZED_IDLE_MODE_MOBILITY" },
548 { GTPv2_SUPPORTED, "GTPv2_SUPPORTED" },
549 { IP4_TRANSPORT_SUPPORTED, "IP4_TRANSPORT_SUPPORTED" },
550 { IP4_HOA_ONLY_SUPPORTED, "IP4_HOA_ONLY_SUPPORTED" },
551 { INTER_MAG_ROUTING_SUPPORTED, "INTER_MAG_ROUTING_SUPPORTED" },
552 };
553
554 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-19 */
555 #define OPERATOR_NAME_TADIG 0x30
556 #define OPERATOR_NAME_REALM 0x31
557 #define OPERATOR_NAME_E212 0x32
558 #define OPERATOR_NAME_ICC 0x33
559 static const struct tok operator_name_vector[] = {
560 { OPERATOR_NAME_TADIG, "TADIG" },
561 { OPERATOR_NAME_REALM, "REALM" },
562 { OPERATOR_NAME_E212, "E212" },
563 { OPERATOR_NAME_ICC, "ICC" },
564 { 0, NULL }
565 };
566
567 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-20 */
568 #define LOCATION_INFORMATION_CODE_CIVIC 0
569 #define LOCATION_INFORMATION_CODE_GEOSPATIAL 1
570 static const struct tok location_information_code_vector[] = {
571 { LOCATION_INFORMATION_CODE_CIVIC , "Civic" },
572 { LOCATION_INFORMATION_CODE_GEOSPATIAL, "Geospatial" },
573 { 0, NULL }
574 };
575
576 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-21 */
577 #define LOCATION_INFORMATION_ENTITY_USER 0
578 #define LOCATION_INFORMATION_ENTITY_RADIUS 1
579 static const struct tok location_information_entity_vector[] = {
580 { LOCATION_INFORMATION_ENTITY_USER, "User" },
581 { LOCATION_INFORMATION_ENTITY_RADIUS, "RADIUS" },
582 { 0, NULL }
583 };
584
585 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-22 */
586 static const struct tok blpr_bm[] = {
587 { 0x0001, "MBZ-15" },
588 { 0x0002, "MBZ-14" },
589 { 0x0004, "MBZ-13" },
590 { 0x0008, "MBZ-12" },
591 { 0x0010, "MBZ-11" },
592 { 0x0020, "MBZ-10" },
593 { 0x0040, "MBZ-9" },
594 { 0x0080, "MBZ-8" },
595 { 0x0100, "MBZ-7" },
596 { 0x0200, "MBZ-6" },
597 { 0x0400, "MBZ-5" },
598 { 0x0800, "MBZ-4" },
599 { 0x1000, "MBZ-3" },
600 { 0x2000, "MBZ-2" },
601 { 0x4000, "MBZ-1" },
602 { 0x8000, "Retransmission Allowed" },
603 { 0, NULL }
604 };
605
606 /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-2 */
607 static const struct attrtype {
608 const char *name; /* Attribute name */
609 const char **subtypes; /* Standard Values (if any) */
610 u_char siz_subtypes; /* Size of total standard values */
611 u_char first_subtype; /* First standard value is 0 or 1 */
612 void (*print_func)(netdissect_options *, const u_char *, u_int, u_short);
613 } attr_type[]=
614 {
615 { NULL, NULL, 0, 0, NULL },
616 { "User-Name", NULL, 0, 0, print_attr_string },
617 { "User-Password", NULL, 0, 0, NULL },
618 { "CHAP-Password", NULL, 0, 0, NULL },
619 { "NAS-IP-Address", NULL, 0, 0, print_attr_address },
620 { "NAS-Port", NULL, 0, 0, print_attr_num },
621 { "Service-Type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num },
622 { "Framed-Protocol", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num },
623 { "Framed-IP-Address", NULL, 0, 0, print_attr_address },
624 { "Framed-IP-Netmask", NULL, 0, 0, print_attr_address },
625 /* ^ [0, 9] ^ */
626 { "Framed-Routing", frm_routing, TAM_SIZE(frm_routing), 0, print_attr_num },
627 { "Filter-Id", NULL, 0, 0, print_attr_string },
628 { "Framed-MTU", NULL, 0, 0, print_attr_num },
629 { "Framed-Compression", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num },
630 { "Login-IP-Host", NULL, 0, 0, print_attr_address },
631 { "Login-Service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num },
632 { "Login-TCP-Port", NULL, 0, 0, print_attr_num },
633 { "Unassigned", NULL, 0, 0, NULL }, /*17*/
634 { "Reply-Message", NULL, 0, 0, print_attr_string },
635 { "Callback-Number", NULL, 0, 0, print_attr_string },
636 /* ^ [10, 19] ^ */
637 { "Callback-Id", NULL, 0, 0, print_attr_string },
638 { "Unassigned", NULL, 0, 0, NULL }, /*21*/
639 { "Framed-Route", NULL, 0, 0, print_attr_string },
640 { "Framed-IPX-Network", NULL, 0, 0, print_attr_num },
641 { "State", NULL, 0, 0, print_attr_string },
642 { "Class", NULL, 0, 0, print_attr_string },
643 { "Vendor-Specific", NULL, 0, 0, print_vendor_attr },
644 { "Session-Timeout", NULL, 0, 0, print_attr_num },
645 { "Idle-Timeout", NULL, 0, 0, print_attr_num },
646 { "Termination-Action", term_action, TAM_SIZE(term_action), 0, print_attr_num },
647 /* ^ [20, 29] ^ */
648 { "Called-Station-Id", NULL, 0, 0, print_attr_string },
649 { "Calling-Station-Id", NULL, 0, 0, print_attr_string },
650 { "NAS-Identifier", NULL, 0, 0, print_attr_string },
651 { "Proxy-State", NULL, 0, 0, print_attr_string },
652 { "Login-LAT-Service", NULL, 0, 0, print_attr_string },
653 { "Login-LAT-Node", NULL, 0, 0, print_attr_string },
654 { "Login-LAT-Group", NULL, 0, 0, print_attr_string },
655 { "Framed-AppleTalk-Link", NULL, 0, 0, print_attr_num },
656 { "Framed-AppleTalk-Network", NULL, 0, 0, print_attr_num },
657 { "Framed-AppleTalk-Zone", NULL, 0, 0, print_attr_string },
658 /* ^ [30, 39] ^ */
659 { "Acct-Status-Type", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num },
660 { "Acct-Delay-Time", NULL, 0, 0, print_attr_num },
661 { "Acct-Input-Octets", NULL, 0, 0, print_attr_num },
662 { "Acct-Output-Octets", NULL, 0, 0, print_attr_num },
663 { "Acct-Session-Id", NULL, 0, 0, print_attr_string },
664 { "Acct-Authentic", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num },
665 { "Acct-Session-Time", NULL, 0, 0, print_attr_num },
666 { "Acct-Input-Packets", NULL, 0, 0, print_attr_num },
667 { "Acct-Output-Packets", NULL, 0, 0, print_attr_num },
668 { "Acct-Terminate-Cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num },
669 /* ^ [40, 49] ^ */
670 { "Acct-Multi-Session-Id", NULL, 0, 0, print_attr_string },
671 { "Acct-Link-Count", NULL, 0, 0, print_attr_num },
672 { "Acct-Input-Gigawords", NULL, 0, 0, print_attr_num },
673 { "Acct-Output-Gigawords", NULL, 0, 0, print_attr_num },
674 { "Unassigned", NULL, 0, 0, NULL }, /*54*/
675 { "Event-Timestamp", NULL, 0, 0, print_attr_time },
676 { "Egress-VLANID", NULL, 0, 0, print_attr_num },
677 { "Ingress-Filters", ingress_filters, TAM_SIZE(ingress_filters)-1, 1, print_attr_num },
678 { "Egress-VLAN-Name", NULL, 0, 0, print_attr_string },
679 { "User-Priority-Table", NULL, 0, 0, NULL },
680 /* ^ [50, 59] ^ */
681 { "CHAP-Challenge", NULL, 0, 0, print_attr_string },
682 { "NAS-Port-Type", nas_port_type, TAM_SIZE(nas_port_type), 0, print_attr_num },
683 { "Port-Limit", NULL, 0, 0, print_attr_num },
684 { "Login-LAT-Port", NULL, 0, 0, print_attr_string }, /*63*/
685 { "Tunnel-Type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num },
686 { "Tunnel-Medium-Type", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1, print_attr_num },
687 { "Tunnel-Client-Endpoint", NULL, 0, 0, print_attr_string },
688 { "Tunnel-Server-Endpoint", NULL, 0, 0, print_attr_string },
689 { "Acct-Tunnel-Connection", NULL, 0, 0, print_attr_string },
690 { "Tunnel-Password", NULL, 0, 0, print_attr_string },
691 /* ^ [60, 69] ^ */
692 { "ARAP-Password", NULL, 0, 0, print_attr_strange },
693 { "ARAP-Features", NULL, 0, 0, print_attr_strange },
694 { "ARAP-Zone-Access", arap_zone, TAM_SIZE(arap_zone)-1, 1, print_attr_num }, /*72*/
695 { "ARAP-Security", NULL, 0, 0, print_attr_string },
696 { "ARAP-Security-Data", NULL, 0, 0, print_attr_string },
697 { "Password-Retry", NULL, 0, 0, print_attr_num },
698 { "Prompt", prompt, TAM_SIZE(prompt), 0, print_attr_num },
699 { "Connect-Info", NULL, 0, 0, print_attr_string },
700 { "Configuration-Token", NULL, 0, 0, print_attr_string },
701 { "EAP-Message", NULL, 0, 0, print_attr_string },
702 /* ^ [70, 79] ^ */
703 { "Message-Authenticator", NULL, 0, 0, print_attr_string }, /*80*/
704 { "Tunnel-Private-Group-ID", NULL, 0, 0, print_attr_string },
705 { "Tunnel-Assignment-ID", NULL, 0, 0, print_attr_string },
706 { "Tunnel-Preference", NULL, 0, 0, print_attr_num },
707 { "ARAP-Challenge-Response", NULL, 0, 0, print_attr_strange },
708 { "Acct-Interim-Interval", NULL, 0, 0, print_attr_num },
709 { "Acct-Tunnel-Packets-Lost", NULL, 0, 0, print_attr_num }, /*86*/
710 { "NAS-Port-Id", NULL, 0, 0, print_attr_string },
711 { "Framed-Pool", NULL, 0, 0, print_attr_string },
712 { "CUI", NULL, 0, 0, print_attr_string },
713 /* ^ [80, 89] ^ */
714 { "Tunnel-Client-Auth-ID", NULL, 0, 0, print_attr_string },
715 { "Tunnel-Server-Auth-ID", NULL, 0, 0, print_attr_string },
716 { "NAS-Filter-Rule", NULL, 0, 0, print_attr_string },
717 { "Unassigned", NULL, 0, 0, NULL }, /*93*/
718 { "Originating-Line-Info", NULL, 0, 0, NULL },
719 { "NAS-IPv6-Address", NULL, 0, 0, print_attr_address6 },
720 { "Framed-Interface-ID", NULL, 0, 0, NULL },
721 { "Framed-IPv6-Prefix", NULL, 0, 0, print_attr_netmask6 },
722 { "Login-IPv6-Host", NULL, 0, 0, print_attr_address6 },
723 { "Framed-IPv6-Route", NULL, 0, 0, print_attr_string },
724 /* ^ [90, 99] ^ */
725 { "Framed-IPv6-Pool", NULL, 0, 0, print_attr_string },
726 { "Error-Cause", NULL, 0, 0, print_attr_strange },
727 { "EAP-Key-Name", NULL, 0, 0, NULL },
728 { "Digest-Response", NULL, 0, 0, print_attr_string },
729 { "Digest-Realm", NULL, 0, 0, print_attr_string },
730 { "Digest-Nonce", NULL, 0, 0, print_attr_string },
731 { "Digest-Response-Auth", NULL, 0, 0, print_attr_string },
732 { "Digest-Nextnonce", NULL, 0, 0, print_attr_string },
733 { "Digest-Method", NULL, 0, 0, print_attr_string },
734 { "Digest-URI", NULL, 0, 0, print_attr_string },
735 /* ^ [100, 109] ^ */
736 { "Digest-Qop", NULL, 0, 0, print_attr_string },
737 { "Digest-Algorithm", NULL, 0, 0, print_attr_string },
738 { "Digest-Entity-Body-Hash", NULL, 0, 0, print_attr_string },
739 { "Digest-CNonce", NULL, 0, 0, print_attr_string },
740 { "Digest-Nonce-Count", NULL, 0, 0, print_attr_string },
741 { "Digest-Username", NULL, 0, 0, print_attr_string },
742 { "Digest-Opaque", NULL, 0, 0, print_attr_string },
743 { "Digest-Auth-Param", NULL, 0, 0, print_attr_string },
744 { "Digest-AKA-Auts", NULL, 0, 0, print_attr_string },
745 { "Digest-Domain", NULL, 0, 0, print_attr_string },
746 /* ^ [110, 119] ^ */
747 { "Digest-Stale", NULL, 0, 0, print_attr_string },
748 { "Digest-HA1", NULL, 0, 0, print_attr_string },
749 { "SIP-AOR", NULL, 0, 0, print_attr_string },
750 { "Delegated-IPv6-Prefix", NULL, 0, 0, print_attr_netmask6 },
751 { "MIP6-Feature-Vector", NULL, 0, 0, print_attr_vector64 },
752 { "MIP6-Home-Link-Prefix", NULL, 0, 0, print_attr_mip6_home_link_prefix },
753 { "Operator-Name", NULL, 0, 0, print_attr_operator_name },
754 { "Location-Information", NULL, 0, 0, print_attr_location_information },
755 { "Location-Data", NULL, 0, 0, print_attr_location_data },
756 { "Basic-Location-Policy-Rules", NULL, 0, 0, print_basic_location_policy_rules }
757 /* ^ [120, 129] ^ */
758 };
759
760
761 /*****************************/
762 /* Print an attribute string */
763 /* value pointed by 'data' */
764 /* and 'length' size. */
765 /*****************************/
766 /* Returns nothing. */
767 /*****************************/
768 static void
769 print_attr_string(netdissect_options *ndo,
770 const u_char *data, u_int length, u_short attr_code)
771 {
772 u_int i;
773
774 ND_TCHECK_LEN(data, length);
775
776 switch(attr_code) {
777 case TUNNEL_PASS:
778 if (length < 3)
779 goto trunc;
780 if (GET_U_1(data) && (GET_U_1(data) <= 0x1F))
781 ND_PRINT("Tag[%u] ", GET_U_1(data));
782 else
783 ND_PRINT("Tag[Unused] ");
784 data++;
785 length--;
786 ND_PRINT("Salt %u ", GET_BE_U_2(data));
787 data+=2;
788 length-=2;
789 break;
790 case TUNNEL_CLIENT_END:
791 case TUNNEL_SERVER_END:
792 case TUNNEL_PRIV_GROUP:
793 case TUNNEL_ASSIGN_ID:
794 case TUNNEL_CLIENT_AUTH:
795 case TUNNEL_SERVER_AUTH:
796 if (GET_U_1(data) <= 0x1F) {
797 if (length < 1)
798 goto trunc;
799 if (GET_U_1(data))
800 ND_PRINT("Tag[%u] ", GET_U_1(data));
801 else
802 ND_PRINT("Tag[Unused] ");
803 data++;
804 length--;
805 }
806 break;
807 case EGRESS_VLAN_NAME:
808 if (length < 1)
809 goto trunc;
810 ND_PRINT("%s (0x%02x) ",
811 tok2str(rfc4675_tagged,"Unknown tag",GET_U_1(data)),
812 GET_U_1(data));
813 data++;
814 length--;
815 break;
816 case EAP_MESSAGE:
817 if (length < 1)
818 goto trunc;
819 eap_print(ndo, data, length);
820 return;
821 }
822
823 for (i=0; i < length && GET_U_1(data); i++, data++)
824 ND_PRINT("%c", ND_ASCII_ISPRINT(GET_U_1(data)) ? GET_U_1(data) : '.');
825
826 return;
827
828 trunc:
829 nd_print_trunc(ndo);
830 }
831
832 /*
833 * print vendor specific attributes
834 */
835 static void
836 print_vendor_attr(netdissect_options *ndo,
837 const u_char *data, u_int length, u_short attr_code _U_)
838 {
839 u_int idx;
840 u_int vendor_id;
841 u_int vendor_type;
842 u_int vendor_length;
843
844 if (length < 4)
845 goto trunc;
846 vendor_id = GET_BE_U_4(data);
847 data+=4;
848 length-=4;
849
850 ND_PRINT("Vendor: %s (%u)",
851 tok2str(smi_values,"Unknown",vendor_id),
852 vendor_id);
853
854 while (length >= 2) {
855 vendor_type = GET_U_1(data);
856 vendor_length = GET_U_1(data + 1);
857
858 if (vendor_length < 2) {
859 ND_PRINT("\n\t Vendor Attribute: %u, Length: %u (bogus, must be >= 2)",
860 vendor_type,
861 vendor_length);
862 return;
863 }
864 if (vendor_length > length) {
865 ND_PRINT("\n\t Vendor Attribute: %u, Length: %u (bogus, goes past end of vendor-specific attribute)",
866 vendor_type,
867 vendor_length);
868 return;
869 }
870 data+=2;
871 vendor_length-=2;
872 length-=2;
873 ND_TCHECK_LEN(data, vendor_length);
874
875 ND_PRINT("\n\t Vendor Attribute: %u, Length: %u, Value: ",
876 vendor_type,
877 vendor_length);
878 for (idx = 0; idx < vendor_length ; idx++, data++)
879 ND_PRINT("%c", ND_ASCII_ISPRINT(GET_U_1(data)) ? GET_U_1(data) : '.');
880 length-=vendor_length;
881 }
882 return;
883
884 trunc:
885 nd_print_trunc(ndo);
886 }
887
888 /******************************/
889 /* Print an attribute numeric */
890 /* value pointed by 'data' */
891 /* and 'length' size. */
892 /******************************/
893 /* Returns nothing. */
894 /******************************/
895 static void
896 print_attr_num(netdissect_options *ndo,
897 const u_char *data, u_int length, u_short attr_code)
898 {
899 uint32_t timeout;
900
901 if (length != 4) {
902 ND_PRINT("ERROR: length %u != 4", length);
903 return;
904 }
905
906 /* This attribute has standard values */
907 if (attr_type[attr_code].siz_subtypes) {
908 static const char **table;
909 uint32_t data_value;
910 table = attr_type[attr_code].subtypes;
911
912 if ( (attr_code == TUNNEL_TYPE) || (attr_code == TUNNEL_MEDIUM) ) {
913 if (!GET_U_1(data))
914 ND_PRINT("Tag[Unused] ");
915 else
916 ND_PRINT("Tag[%u] ", GET_U_1(data));
917 data++;
918 data_value = GET_BE_U_3(data);
919 } else {
920 data_value = GET_BE_U_4(data);
921 }
922 if ( data_value <= (uint32_t)(attr_type[attr_code].siz_subtypes - 1 +
923 attr_type[attr_code].first_subtype) &&
924 data_value >= attr_type[attr_code].first_subtype )
925 ND_PRINT("%s", table[data_value]);
926 else
927 ND_PRINT("#%u", data_value);
928 } else {
929 switch(attr_code) /* Be aware of special cases... */
930 {
931 case FRM_IPX:
932 if (GET_BE_U_4(data) == 0xFFFFFFFE )
933 ND_PRINT("NAS Select");
934 else
935 ND_PRINT("%u", GET_BE_U_4(data));
936 break;
937
938 case SESSION_TIMEOUT:
939 case IDLE_TIMEOUT:
940 case ACCT_DELAY:
941 case ACCT_SESSION_TIME:
942 case ACCT_INT_INTERVAL:
943 timeout = GET_BE_U_4(data);
944 if ( timeout < 60 )
945 ND_PRINT("%02d secs", timeout);
946 else {
947 if ( timeout < 3600 )
948 ND_PRINT("%02d:%02d min",
949 timeout / 60, timeout % 60);
950 else
951 ND_PRINT("%02d:%02d:%02d hours",
952 timeout / 3600, (timeout % 3600) / 60,
953 timeout % 60);
954 }
955 break;
956
957 case FRM_ATALK_LINK:
958 if (GET_BE_U_4(data))
959 ND_PRINT("%u", GET_BE_U_4(data));
960 else
961 ND_PRINT("Unnumbered");
962 break;
963
964 case FRM_ATALK_NETWORK:
965 if (GET_BE_U_4(data))
966 ND_PRINT("%u", GET_BE_U_4(data));
967 else
968 ND_PRINT("NAS assigned");
969 break;
970
971 case TUNNEL_PREFERENCE:
972 if (GET_U_1(data))
973 ND_PRINT("Tag[%u] ", GET_U_1(data));
974 else
975 ND_PRINT("Tag[Unused] ");
976 data++;
977 ND_PRINT("%u", GET_BE_U_3(data));
978 break;
979
980 case EGRESS_VLAN_ID:
981 ND_PRINT("%s (0x%02x) ",
982 tok2str(rfc4675_tagged,"Unknown tag",GET_U_1(data)),
983 GET_U_1(data));
984 data++;
985 ND_PRINT("%u", GET_BE_U_3(data));
986 break;
987
988 default:
989 ND_PRINT("%u", GET_BE_U_4(data));
990 break;
991
992 } /* switch */
993
994 } /* if-else */
995 }
996
997 /*****************************/
998 /* Print an attribute IPv4 */
999 /* address value pointed by */
1000 /* 'data' and 'length' size. */
1001 /*****************************/
1002 /* Returns nothing. */
1003 /*****************************/
1004 static void
1005 print_attr_address(netdissect_options *ndo,
1006 const u_char *data, u_int length, u_short attr_code)
1007 {
1008 if (length != 4) {
1009 ND_PRINT("ERROR: length %u != 4", length);
1010 return;
1011 }
1012
1013 switch(attr_code) {
1014 case FRM_IPADDR:
1015 case LOG_IPHOST:
1016 if (GET_BE_U_4(data) == 0xFFFFFFFF )
1017 ND_PRINT("User Selected");
1018 else
1019 if (GET_BE_U_4(data) == 0xFFFFFFFE )
1020 ND_PRINT("NAS Select");
1021 else
1022 ND_PRINT("%s",GET_IPADDR_STRING(data));
1023 break;
1024
1025 default:
1026 ND_PRINT("%s", GET_IPADDR_STRING(data));
1027 break;
1028 }
1029 }
1030
1031 /*****************************/
1032 /* Print an attribute IPv6 */
1033 /* address value pointed by */
1034 /* 'data' and 'length' size. */
1035 /*****************************/
1036 /* Returns nothing. */
1037 /*****************************/
1038 static void
1039 print_attr_address6(netdissect_options *ndo,
1040 const u_char *data, u_int length, u_short attr_code _U_)
1041 {
1042 if (length != 16) {
1043 ND_PRINT("ERROR: length %u != 16", length);
1044 return;
1045 }
1046
1047 ND_PRINT("%s", GET_IP6ADDR_STRING(data));
1048 }
1049
1050 static void
1051 print_attr_netmask6(netdissect_options *ndo,
1052 const u_char *data, u_int length, u_short attr_code _U_)
1053 {
1054 u_char data2[16];
1055
1056 if (length < 2 || length > 18) {
1057 ND_PRINT("ERROR: length %u not in range (2..18)", length);
1058 return;
1059 }
1060 ND_TCHECK_LEN(data, length);
1061 if (GET_U_1(data + 1) > 128) {
1062 ND_PRINT("ERROR: netmask %u not in range (0..128)", GET_U_1(data + 1));
1063 return;
1064 }
1065
1066 memset(data2, 0, sizeof(data2));
1067 if (length > 2)
1068 memcpy(data2, data+2, length-2);
1069
1070 ND_PRINT("%s/%u", ip6addr_string(ndo, data2), GET_U_1(data + 1)); /* local buffer, not packet data; don't use GET_IP6ADDR_STRING() */
1071
1072 if (GET_U_1(data + 1) > 8 * (length - 2))
1073 ND_PRINT(" (inconsistent prefix length)");
1074
1075 return;
1076
1077 trunc:
1078 nd_print_trunc(ndo);
1079 }
1080
1081 static void
1082 print_attr_mip6_home_link_prefix(netdissect_options *ndo,
1083 const u_char *data, u_int length, u_short attr_code _U_)
1084 {
1085 if (length != 17) {
1086 ND_PRINT("ERROR: length %u != 17", length);
1087 return;
1088 }
1089 ND_TCHECK_LEN(data, length);
1090 if (GET_U_1(data) > 128) {
1091 ND_PRINT("ERROR: netmask %u not in range (0..128)", GET_U_1(data));
1092 return;
1093 }
1094
1095 ND_PRINT("%s/%u", GET_IP6ADDR_STRING(data + 1), GET_U_1(data));
1096
1097 return;
1098
1099 trunc:
1100 nd_print_trunc(ndo);
1101 }
1102
1103 static void
1104 print_attr_operator_name(netdissect_options *ndo,
1105 const u_char *data, u_int length, u_short attr_code _U_)
1106 {
1107 u_int namespace_value;
1108
1109 ND_TCHECK_LEN(data, length);
1110 if (length < 2) {
1111 ND_PRINT("ERROR: length %u < 2", length);
1112 return;
1113 }
1114 namespace_value = GET_U_1(data);
1115 data++;
1116 ND_PRINT("[%s] ", tok2str(operator_name_vector, "unknown namespace %u", namespace_value));
1117
1118 nd_printjn(ndo, data, length - 1);
1119
1120 return;
1121
1122 trunc:
1123 nd_print_trunc(ndo);
1124 }
1125
1126 static void
1127 print_attr_location_information(netdissect_options *ndo,
1128 const u_char *data, u_int length, u_short attr_code _U_)
1129 {
1130 uint16_t index;
1131 uint8_t code, entity;
1132
1133 ND_TCHECK_LEN(data, length);
1134 if (length < 21) {
1135 ND_PRINT("ERROR: length %u < 21", length);
1136 return;
1137 }
1138
1139 index = GET_BE_U_2(data);
1140 data += 2;
1141
1142 code = GET_U_1(data);
1143 data++;
1144
1145 entity = GET_U_1(data);
1146 data++;
1147
1148 ND_PRINT("index %u, code %s, entity %s, ",
1149 index,
1150 tok2str(location_information_code_vector, "Unknown (%u)", code),
1151 tok2str(location_information_entity_vector, "Unknown (%u)", entity)
1152 );
1153
1154 ND_PRINT("sighting time ");
1155 p_ntp_time(ndo, (const struct l_fixedpt *)data);
1156 ND_PRINT(", ");
1157 data += 8;
1158
1159 ND_PRINT("time to live ");
1160 p_ntp_time(ndo, (const struct l_fixedpt *)data);
1161 ND_PRINT(", ");
1162 data += 8;
1163
1164 ND_PRINT("method \"");
1165 nd_printjn(ndo, data, length - 20);
1166 ND_PRINT("\"");
1167
1168 return;
1169
1170 trunc:
1171 nd_print_trunc(ndo);
1172 }
1173
1174 static void
1175 print_attr_location_data(netdissect_options *ndo,
1176 const u_char *data, u_int length, u_short attr_code _U_)
1177 {
1178 uint16_t index;
1179
1180 ND_TCHECK_LEN(data, length);
1181 if (length < 3) {
1182 ND_PRINT("ERROR: length %u < 3", length);
1183 return;
1184 }
1185
1186 index = GET_BE_U_2(data);
1187 data += 2;
1188 ND_PRINT("index %u, location", index);
1189
1190 /* The Location field of the String field of the Location-Data attribute
1191 * can have two completely different structures depending on the value of
1192 * the Code field of a Location-Info attribute, which supposedly precedes
1193 * the current attribute. Unfortunately, this choice of encoding makes it
1194 * non-trivial to decode the Location field without preserving some state
1195 * between the attributes.
1196 */
1197 hex_and_ascii_print(ndo, "\n\t ", data, length - 2);
1198
1199 return;
1200
1201 trunc:
1202 nd_print_trunc(ndo);
1203 }
1204
1205 static void
1206 print_basic_location_policy_rules(netdissect_options *ndo,
1207 const u_char *data, u_int length, u_short attr_code _U_)
1208 {
1209 uint16_t flags;
1210
1211 ND_TCHECK_LEN(data, length);
1212 if (length < 10) {
1213 ND_PRINT("ERROR: length %u < 10", length);
1214 return;
1215 }
1216
1217 flags = GET_BE_U_2(data);
1218 data += 2;
1219 ND_PRINT("flags [%s], ", bittok2str(blpr_bm, "none", flags));
1220
1221 ND_PRINT("retention expires ");
1222 p_ntp_time(ndo, (const struct l_fixedpt *)data);
1223 data += 8;
1224
1225 if (length > 10) {
1226 ND_PRINT(", note well \"");
1227 nd_printjn(ndo, data, length - 10);
1228 ND_PRINT("\"");
1229 }
1230
1231 return;
1232
1233 trunc:
1234 nd_print_trunc(ndo);
1235 }
1236
1237
1238 /*************************************/
1239 /* Print an attribute of 'secs since */
1240 /* January 1, 1970 00:00 UTC' value */
1241 /* pointed by 'data' and 'length' */
1242 /* size. */
1243 /*************************************/
1244 /* Returns nothing. */
1245 /*************************************/
1246 static void
1247 print_attr_time(netdissect_options *ndo,
1248 const u_char *data, u_int length, u_short attr_code _U_)
1249 {
1250 time_t attr_time;
1251 char string[26];
1252
1253 if (length != 4) {
1254 ND_PRINT("ERROR: length %u != 4", length);
1255 return;
1256 }
1257
1258 attr_time = GET_BE_U_4(data);
1259 strlcpy(string, ctime(&attr_time), sizeof(string));
1260 /* Get rid of the newline */
1261 string[24] = '\0';
1262 ND_PRINT("%.24s", string);
1263 }
1264
1265 static void
1266 print_attr_vector64(netdissect_options *ndo,
1267 const u_char *data, u_int length, u_short attr_code _U_)
1268 {
1269 uint64_t data_value, i;
1270 const char *sep = "";
1271
1272 if (length != 8) {
1273 ND_PRINT("ERROR: length %u != 8", length);
1274 return;
1275 }
1276
1277 ND_PRINT("[");
1278
1279 data_value = GET_BE_U_8(data);
1280 /* Print the 64-bit field in a format similar to bittok2str(), less
1281 * flagging any unknown bits. This way it should be easier to replace
1282 * the custom code with a library function later.
1283 */
1284 for (i = 0; i < TAM_SIZE(mip6_feature_vector); i++) {
1285 if (data_value & mip6_feature_vector[i].v) {
1286 ND_PRINT("%s%s", sep, mip6_feature_vector[i].s);
1287 sep = ", ";
1288 }
1289 }
1290
1291 ND_PRINT("]");
1292 }
1293
1294 /***********************************/
1295 /* Print an attribute of 'strange' */
1296 /* data format pointed by 'data' */
1297 /* and 'length' size. */
1298 /***********************************/
1299 /* Returns nothing. */
1300 /***********************************/
1301 static void
1302 print_attr_strange(netdissect_options *ndo,
1303 const u_char *data, u_int length, u_short attr_code)
1304 {
1305 u_short len_data;
1306 u_int error_cause_value;
1307
1308 switch(attr_code) {
1309 case ARAP_PASS:
1310 if (length != 16) {
1311 ND_PRINT("ERROR: length %u != 16", length);
1312 return;
1313 }
1314 ND_PRINT("User_challenge (");
1315 len_data = 8;
1316 PRINT_HEX(len_data, data);
1317 ND_PRINT(") User_resp(");
1318 len_data = 8;
1319 PRINT_HEX(len_data, data);
1320 ND_PRINT(")");
1321 break;
1322
1323 case ARAP_FEATURES:
1324 if (length != 14) {
1325 ND_PRINT("ERROR: length %u != 14", length);
1326 return;
1327 }
1328 if (GET_U_1(data))
1329 ND_PRINT("User can change password");
1330 else
1331 ND_PRINT("User cannot change password");
1332 data++;
1333 ND_PRINT(", Min password length: %u", GET_U_1(data));
1334 data++;
1335 ND_PRINT(", created at: ");
1336 len_data = 4;
1337 PRINT_HEX(len_data, data);
1338 ND_PRINT(", expires in: ");
1339 len_data = 4;
1340 PRINT_HEX(len_data, data);
1341 ND_PRINT(", Current Time: ");
1342 len_data = 4;
1343 PRINT_HEX(len_data, data);
1344 break;
1345
1346 case ARAP_CHALLENGE_RESP:
1347 if (length < 8) {
1348 ND_PRINT("ERROR: length %u != 8", length);
1349 return;
1350 }
1351 len_data = 8;
1352 PRINT_HEX(len_data, data);
1353 break;
1354
1355 case ERROR_CAUSE:
1356 if (length != 4) {
1357 ND_PRINT("Error: length %u != 4", length);
1358 return;
1359 }
1360
1361 error_cause_value = GET_BE_U_4(data);
1362 ND_PRINT("Error cause %u: %s", error_cause_value, tok2str(errorcausetype, "Error-Cause %u not known", error_cause_value));
1363 break;
1364 }
1365 return;
1366 }
1367
1368 static void
1369 radius_attrs_print(netdissect_options *ndo,
1370 const u_char *attr, u_int length)
1371 {
1372 const struct radius_attr *rad_attr = (const struct radius_attr *)attr;
1373 const char *attr_string;
1374 uint8_t type, len;
1375
1376 while (length > 0) {
1377 if (length < 2)
1378 goto trunc;
1379 ND_TCHECK_SIZE(rad_attr);
1380
1381 type = GET_U_1(rad_attr->type);
1382 len = GET_U_1(rad_attr->len);
1383 if (type != 0 && type < TAM_SIZE(attr_type))
1384 attr_string = attr_type[type].name;
1385 else
1386 attr_string = "Unknown";
1387
1388 ND_PRINT("\n\t %s Attribute (%u), length: %u",
1389 attr_string,
1390 type,
1391 len);
1392 if (len < 2) {
1393 ND_PRINT(" (bogus, must be >= 2)");
1394 return;
1395 }
1396 if (len > length) {
1397 ND_PRINT(" (bogus, goes past end of packet)");
1398 return;
1399 }
1400 ND_PRINT(", Value: ");
1401
1402 if (type < TAM_SIZE(attr_type)) {
1403 if (len > 2) {
1404 if ( attr_type[type].print_func )
1405 (*attr_type[type].print_func)(
1406 ndo, ((const u_char *)(rad_attr+1)),
1407 len - 2, type);
1408 }
1409 }
1410 /* do we also want to see a hex dump ? */
1411 if (ndo->ndo_vflag> 1)
1412 print_unknown_data(ndo, (const u_char *)rad_attr+2, "\n\t ", (len)-2);
1413
1414 length-=(len);
1415 rad_attr = (const struct radius_attr *)( ((const char *)(rad_attr))+len);
1416 }
1417 return;
1418
1419 trunc:
1420 nd_print_trunc(ndo);
1421 }
1422
1423 void
1424 radius_print(netdissect_options *ndo,
1425 const u_char *dat, u_int length)
1426 {
1427 const struct radius_hdr *rad;
1428 u_int len, auth_idx;
1429
1430 ndo->ndo_protocol = "radius";
1431 ND_TCHECK_LEN(dat, MIN_RADIUS_LEN);
1432 rad = (const struct radius_hdr *)dat;
1433 len = GET_BE_U_2(rad->len);
1434
1435 if (len < MIN_RADIUS_LEN) {
1436 nd_print_trunc(ndo);
1437 return;
1438 }
1439
1440 if (len > length)
1441 len = length;
1442
1443 if (ndo->ndo_vflag < 1) {
1444 ND_PRINT("RADIUS, %s (%u), id: 0x%02x length: %u",
1445 tok2str(radius_command_values,"Unknown Command",GET_U_1(rad->code)),
1446 GET_U_1(rad->code),
1447 GET_U_1(rad->id),
1448 len);
1449 return;
1450 } else {
1451 ND_PRINT("RADIUS, length: %u\n\t%s (%u), id: 0x%02x, Authenticator: ",
1452 len,
1453 tok2str(radius_command_values,"Unknown Command",GET_U_1(rad->code)),
1454 GET_U_1(rad->code),
1455 GET_U_1(rad->id));
1456
1457 for(auth_idx=0; auth_idx < 16; auth_idx++)
1458 ND_PRINT("%02x", rad->auth[auth_idx]);
1459 }
1460
1461 if (len > MIN_RADIUS_LEN)
1462 radius_attrs_print(ndo, dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN);
1463 return;
1464
1465 trunc:
1466 nd_print_trunc(ndo);
1467 }
[mirror] the TCPdump network dissector