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[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 }
920 else
921 {
922 data_value = GET_BE_U_4(data);
923 }
924 if ( data_value <= (uint32_t)(attr_type[attr_code].siz_subtypes - 1 +
925 attr_type[attr_code].first_subtype) &&
926 data_value >= attr_type[attr_code].first_subtype )
927 ND_PRINT("%s", table[data_value]);
928 else
929 ND_PRINT("#%u", data_value);
930 }
931 else
932 {
933 switch(attr_code) /* Be aware of special cases... */
934 {
935 case FRM_IPX:
936 if (GET_BE_U_4(data) == 0xFFFFFFFE )
937 ND_PRINT("NAS Select");
938 else
939 ND_PRINT("%u", GET_BE_U_4(data));
940 break;
941
942 case SESSION_TIMEOUT:
943 case IDLE_TIMEOUT:
944 case ACCT_DELAY:
945 case ACCT_SESSION_TIME:
946 case ACCT_INT_INTERVAL:
947 timeout = GET_BE_U_4(data);
948 if ( timeout < 60 )
949 ND_PRINT("%02d secs", timeout);
950 else
951 {
952 if ( timeout < 3600 )
953 ND_PRINT("%02d:%02d min",
954 timeout / 60, timeout % 60);
955 else
956 ND_PRINT("%02d:%02d:%02d hours",
957 timeout / 3600, (timeout % 3600) / 60,
958 timeout % 60);
959 }
960 break;
961
962 case FRM_ATALK_LINK:
963 if (GET_BE_U_4(data))
964 ND_PRINT("%u", GET_BE_U_4(data));
965 else
966 ND_PRINT("Unnumbered");
967 break;
968
969 case FRM_ATALK_NETWORK:
970 if (GET_BE_U_4(data))
971 ND_PRINT("%u", GET_BE_U_4(data));
972 else
973 ND_PRINT("NAS assigned");
974 break;
975
976 case TUNNEL_PREFERENCE:
977 if (GET_U_1(data))
978 ND_PRINT("Tag[%u] ", GET_U_1(data));
979 else
980 ND_PRINT("Tag[Unused] ");
981 data++;
982 ND_PRINT("%u", GET_BE_U_3(data));
983 break;
984
985 case EGRESS_VLAN_ID:
986 ND_PRINT("%s (0x%02x) ",
987 tok2str(rfc4675_tagged,"Unknown tag",GET_U_1(data)),
988 GET_U_1(data));
989 data++;
990 ND_PRINT("%u", GET_BE_U_3(data));
991 break;
992
993 default:
994 ND_PRINT("%u", GET_BE_U_4(data));
995 break;
996
997 } /* switch */
998
999 } /* if-else */
1000 }
1001
1002 /*****************************/
1003 /* Print an attribute IPv4 */
1004 /* address value pointed by */
1005 /* 'data' and 'length' size. */
1006 /*****************************/
1007 /* Returns nothing. */
1008 /*****************************/
1009 static void
1010 print_attr_address(netdissect_options *ndo,
1011 const u_char *data, u_int length, u_short attr_code)
1012 {
1013 if (length != 4) {
1014 ND_PRINT("ERROR: length %u != 4", length);
1015 return;
1016 }
1017
1018 switch(attr_code) {
1019 case FRM_IPADDR:
1020 case LOG_IPHOST:
1021 if (GET_BE_U_4(data) == 0xFFFFFFFF )
1022 ND_PRINT("User Selected");
1023 else
1024 if (GET_BE_U_4(data) == 0xFFFFFFFE )
1025 ND_PRINT("NAS Select");
1026 else
1027 ND_PRINT("%s",GET_IPADDR_STRING(data));
1028 break;
1029
1030 default:
1031 ND_PRINT("%s", GET_IPADDR_STRING(data));
1032 break;
1033 }
1034 }
1035
1036 /*****************************/
1037 /* Print an attribute IPv6 */
1038 /* address value pointed by */
1039 /* 'data' and 'length' size. */
1040 /*****************************/
1041 /* Returns nothing. */
1042 /*****************************/
1043 static void
1044 print_attr_address6(netdissect_options *ndo,
1045 const u_char *data, u_int length, u_short attr_code _U_)
1046 {
1047 if (length != 16) {
1048 ND_PRINT("ERROR: length %u != 16", length);
1049 return;
1050 }
1051
1052 ND_PRINT("%s", GET_IP6ADDR_STRING(data));
1053 }
1054
1055 static void
1056 print_attr_netmask6(netdissect_options *ndo,
1057 const u_char *data, u_int length, u_short attr_code _U_)
1058 {
1059 u_char data2[16];
1060
1061 if (length < 2 || length > 18) {
1062 ND_PRINT("ERROR: length %u not in range (2..18)", length);
1063 return;
1064 }
1065 ND_TCHECK_LEN(data, length);
1066 if (GET_U_1(data + 1) > 128) {
1067 ND_PRINT("ERROR: netmask %u not in range (0..128)", GET_U_1(data + 1));
1068 return;
1069 }
1070
1071 memset(data2, 0, sizeof(data2));
1072 if (length > 2)
1073 memcpy(data2, data+2, length-2);
1074
1075 ND_PRINT("%s/%u", ip6addr_string(ndo, data2), GET_U_1(data + 1)); /* local buffer, not packet data; don't use GET_IP6ADDR_STRING() */
1076
1077 if (GET_U_1(data + 1) > 8 * (length - 2))
1078 ND_PRINT(" (inconsistent prefix length)");
1079
1080 return;
1081
1082 trunc:
1083 nd_print_trunc(ndo);
1084 }
1085
1086 static void
1087 print_attr_mip6_home_link_prefix(netdissect_options *ndo,
1088 const u_char *data, u_int length, u_short attr_code _U_)
1089 {
1090 if (length != 17) {
1091 ND_PRINT("ERROR: length %u != 17", length);
1092 return;
1093 }
1094 ND_TCHECK_LEN(data, length);
1095 if (GET_U_1(data) > 128) {
1096 ND_PRINT("ERROR: netmask %u not in range (0..128)", GET_U_1(data));
1097 return;
1098 }
1099
1100 ND_PRINT("%s/%u", GET_IP6ADDR_STRING(data + 1), GET_U_1(data));
1101
1102 return;
1103
1104 trunc:
1105 nd_print_trunc(ndo);
1106 }
1107
1108 static void
1109 print_attr_operator_name(netdissect_options *ndo,
1110 const u_char *data, u_int length, u_short attr_code _U_)
1111 {
1112 u_int namespace_value;
1113
1114 ND_TCHECK_LEN(data, length);
1115 if (length < 2) {
1116 ND_PRINT("ERROR: length %u < 2", length);
1117 return;
1118 }
1119 namespace_value = GET_U_1(data);
1120 data++;
1121 ND_PRINT("[%s] ", tok2str(operator_name_vector, "unknown namespace %u", namespace_value));
1122
1123 nd_printjn(ndo, data, length - 1);
1124
1125 return;
1126
1127 trunc:
1128 nd_print_trunc(ndo);
1129 }
1130
1131 static void
1132 print_attr_location_information(netdissect_options *ndo,
1133 const u_char *data, u_int length, u_short attr_code _U_)
1134 {
1135 uint16_t index;
1136 uint8_t code, entity;
1137
1138 ND_TCHECK_LEN(data, length);
1139 if (length < 21) {
1140 ND_PRINT("ERROR: length %u < 21", length);
1141 return;
1142 }
1143
1144 index = GET_BE_U_2(data);
1145 data += 2;
1146
1147 code = GET_U_1(data);
1148 data++;
1149
1150 entity = GET_U_1(data);
1151 data++;
1152
1153 ND_PRINT("index %u, code %s, entity %s, ",
1154 index,
1155 tok2str(location_information_code_vector, "Unknown (%u)", code),
1156 tok2str(location_information_entity_vector, "Unknown (%u)", entity)
1157 );
1158
1159 ND_PRINT("sighting time ");
1160 p_ntp_time(ndo, (const struct l_fixedpt *)data);
1161 ND_PRINT(", ");
1162 data += 8;
1163
1164 ND_PRINT("time to live ");
1165 p_ntp_time(ndo, (const struct l_fixedpt *)data);
1166 ND_PRINT(", ");
1167 data += 8;
1168
1169 ND_PRINT("method \"");
1170 nd_printjn(ndo, data, length - 20);
1171 ND_PRINT("\"");
1172
1173 return;
1174
1175 trunc:
1176 nd_print_trunc(ndo);
1177 }
1178
1179 static void
1180 print_attr_location_data(netdissect_options *ndo,
1181 const u_char *data, u_int length, u_short attr_code _U_)
1182 {
1183 uint16_t index;
1184
1185 ND_TCHECK_LEN(data, length);
1186 if (length < 3) {
1187 ND_PRINT("ERROR: length %u < 3", length);
1188 return;
1189 }
1190
1191 index = GET_BE_U_2(data);
1192 data += 2;
1193 ND_PRINT("index %u, location", index);
1194
1195 /* The Location field of the String field of the Location-Data attribute
1196 * can have two completely different structures depending on the value of
1197 * the Code field of a Location-Info attribute, which supposedly precedes
1198 * the current attribute. Unfortunately, this choice of encoding makes it
1199 * non-trivial to decode the Location field without preserving some state
1200 * between the attributes.
1201 */
1202 hex_and_ascii_print(ndo, "\n\t ", data, length - 2);
1203
1204 return;
1205
1206 trunc:
1207 nd_print_trunc(ndo);
1208 }
1209
1210 static void
1211 print_basic_location_policy_rules(netdissect_options *ndo,
1212 const u_char *data, u_int length, u_short attr_code _U_)
1213 {
1214 uint16_t flags;
1215
1216 ND_TCHECK_LEN(data, length);
1217 if (length < 10) {
1218 ND_PRINT("ERROR: length %u < 10", length);
1219 return;
1220 }
1221
1222 flags = GET_BE_U_2(data);
1223 data += 2;
1224 ND_PRINT("flags [%s], ", bittok2str(blpr_bm, "none", flags));
1225
1226 ND_PRINT("retention expires ");
1227 p_ntp_time(ndo, (const struct l_fixedpt *)data);
1228 data += 8;
1229
1230 if (length > 10) {
1231 ND_PRINT(", note well \"");
1232 nd_printjn(ndo, data, length - 10);
1233 ND_PRINT("\"");
1234 }
1235
1236 return;
1237
1238 trunc:
1239 nd_print_trunc(ndo);
1240 }
1241
1242
1243 /*************************************/
1244 /* Print an attribute of 'secs since */
1245 /* January 1, 1970 00:00 UTC' value */
1246 /* pointed by 'data' and 'length' */
1247 /* size. */
1248 /*************************************/
1249 /* Returns nothing. */
1250 /*************************************/
1251 static void
1252 print_attr_time(netdissect_options *ndo,
1253 const u_char *data, u_int length, u_short attr_code _U_)
1254 {
1255 time_t attr_time;
1256 char string[26];
1257
1258 if (length != 4) {
1259 ND_PRINT("ERROR: length %u != 4", length);
1260 return;
1261 }
1262
1263 attr_time = GET_BE_U_4(data);
1264 strlcpy(string, ctime(&attr_time), sizeof(string));
1265 /* Get rid of the newline */
1266 string[24] = '\0';
1267 ND_PRINT("%.24s", string);
1268 }
1269
1270 static void
1271 print_attr_vector64(netdissect_options *ndo,
1272 const u_char *data, u_int length, u_short attr_code _U_)
1273 {
1274 uint64_t data_value, i;
1275 const char *sep = "";
1276
1277 if (length != 8) {
1278 ND_PRINT("ERROR: length %u != 8", length);
1279 return;
1280 }
1281
1282 ND_PRINT("[");
1283
1284 data_value = GET_BE_U_8(data);
1285 /* Print the 64-bit field in a format similar to bittok2str(), less
1286 * flagging any unknown bits. This way it should be easier to replace
1287 * the custom code with a library function later.
1288 */
1289 for (i = 0; i < TAM_SIZE(mip6_feature_vector); i++) {
1290 if (data_value & mip6_feature_vector[i].v) {
1291 ND_PRINT("%s%s", sep, mip6_feature_vector[i].s);
1292 sep = ", ";
1293 }
1294 }
1295
1296 ND_PRINT("]");
1297 }
1298
1299 /***********************************/
1300 /* Print an attribute of 'strange' */
1301 /* data format pointed by 'data' */
1302 /* and 'length' size. */
1303 /***********************************/
1304 /* Returns nothing. */
1305 /***********************************/
1306 static void
1307 print_attr_strange(netdissect_options *ndo,
1308 const u_char *data, u_int length, u_short attr_code)
1309 {
1310 u_short len_data;
1311 u_int error_cause_value;
1312
1313 switch(attr_code) {
1314 case ARAP_PASS:
1315 if (length != 16) {
1316 ND_PRINT("ERROR: length %u != 16", length);
1317 return;
1318 }
1319 ND_PRINT("User_challenge (");
1320 len_data = 8;
1321 PRINT_HEX(len_data, data);
1322 ND_PRINT(") User_resp(");
1323 len_data = 8;
1324 PRINT_HEX(len_data, data);
1325 ND_PRINT(")");
1326 break;
1327
1328 case ARAP_FEATURES:
1329 if (length != 14) {
1330 ND_PRINT("ERROR: length %u != 14", length);
1331 return;
1332 }
1333 if (GET_U_1(data))
1334 ND_PRINT("User can change password");
1335 else
1336 ND_PRINT("User cannot change password");
1337 data++;
1338 ND_PRINT(", Min password length: %u", GET_U_1(data));
1339 data++;
1340 ND_PRINT(", created at: ");
1341 len_data = 4;
1342 PRINT_HEX(len_data, data);
1343 ND_PRINT(", expires in: ");
1344 len_data = 4;
1345 PRINT_HEX(len_data, data);
1346 ND_PRINT(", Current Time: ");
1347 len_data = 4;
1348 PRINT_HEX(len_data, data);
1349 break;
1350
1351 case ARAP_CHALLENGE_RESP:
1352 if (length < 8) {
1353 ND_PRINT("ERROR: length %u != 8", length);
1354 return;
1355 }
1356 len_data = 8;
1357 PRINT_HEX(len_data, data);
1358 break;
1359
1360 case ERROR_CAUSE:
1361 if (length != 4) {
1362 ND_PRINT("Error: length %u != 4", length);
1363 return;
1364 }
1365
1366 error_cause_value = GET_BE_U_4(data);
1367 ND_PRINT("Error cause %u: %s", error_cause_value, tok2str(errorcausetype, "Error-Cause %u not known", error_cause_value));
1368 break;
1369 }
1370 return;
1371 }
1372
1373 static void
1374 radius_attrs_print(netdissect_options *ndo,
1375 const u_char *attr, u_int length)
1376 {
1377 const struct radius_attr *rad_attr = (const struct radius_attr *)attr;
1378 const char *attr_string;
1379 uint8_t type, len;
1380
1381 while (length > 0) {
1382 if (length < 2)
1383 goto trunc;
1384 ND_TCHECK_SIZE(rad_attr);
1385
1386 type = GET_U_1(rad_attr->type);
1387 len = GET_U_1(rad_attr->len);
1388 if (type != 0 && type < TAM_SIZE(attr_type))
1389 attr_string = attr_type[type].name;
1390 else
1391 attr_string = "Unknown";
1392
1393 ND_PRINT("\n\t %s Attribute (%u), length: %u",
1394 attr_string,
1395 type,
1396 len);
1397 if (len < 2) {
1398 ND_PRINT(" (bogus, must be >= 2)");
1399 return;
1400 }
1401 if (len > length) {
1402 ND_PRINT(" (bogus, goes past end of packet)");
1403 return;
1404 }
1405 ND_PRINT(", Value: ");
1406
1407 if (type < TAM_SIZE(attr_type)) {
1408 if (len > 2) {
1409 if ( attr_type[type].print_func )
1410 (*attr_type[type].print_func)(
1411 ndo, ((const u_char *)(rad_attr+1)),
1412 len - 2, type);
1413 }
1414 }
1415 /* do we also want to see a hex dump ? */
1416 if (ndo->ndo_vflag> 1)
1417 print_unknown_data(ndo, (const u_char *)rad_attr+2, "\n\t ", (len)-2);
1418
1419 length-=(len);
1420 rad_attr = (const struct radius_attr *)( ((const char *)(rad_attr))+len);
1421 }
1422 return;
1423
1424 trunc:
1425 nd_print_trunc(ndo);
1426 }
1427
1428 void
1429 radius_print(netdissect_options *ndo,
1430 const u_char *dat, u_int length)
1431 {
1432 const struct radius_hdr *rad;
1433 u_int len, auth_idx;
1434
1435 ndo->ndo_protocol = "radius";
1436 ND_TCHECK_LEN(dat, MIN_RADIUS_LEN);
1437 rad = (const struct radius_hdr *)dat;
1438 len = GET_BE_U_2(rad->len);
1439
1440 if (len < MIN_RADIUS_LEN) {
1441 nd_print_trunc(ndo);
1442 return;
1443 }
1444
1445 if (len > length)
1446 len = length;
1447
1448 if (ndo->ndo_vflag < 1) {
1449 ND_PRINT("RADIUS, %s (%u), id: 0x%02x length: %u",
1450 tok2str(radius_command_values,"Unknown Command",GET_U_1(rad->code)),
1451 GET_U_1(rad->code),
1452 GET_U_1(rad->id),
1453 len);
1454 return;
1455 }
1456 else {
1457 ND_PRINT("RADIUS, length: %u\n\t%s (%u), id: 0x%02x, Authenticator: ",
1458 len,
1459 tok2str(radius_command_values,"Unknown Command",GET_U_1(rad->code)),
1460 GET_U_1(rad->code),
1461 GET_U_1(rad->id));
1462
1463 for(auth_idx=0; auth_idx < 16; auth_idx++)
1464 ND_PRINT("%02x", rad->auth[auth_idx]);
1465 }
1466
1467 if (len > MIN_RADIUS_LEN)
1468 radius_attrs_print(ndo, dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN);
1469 return;
1470
1471 trunc:
1472 nd_print_trunc(ndo);
1473 }
[mirror] the TCPdump network dissector