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Eliminate some unused parameters.
[tcpdump] / print-radius.c
1 /*
2 * Radius printer routines as specified on:
3 *
4 * RFC 2865:
5 * "Remote Authentication Dial In User Service (RADIUS)"
6 *
7 * RFC 2866:
8 * "RADIUS Accounting"
9 *
10 * RFC 2867:
11 * "RADIUS Accounting Modifications for Tunnel Protocol Support"
12 *
13 * RFC 2868:
14 * "RADIUS Attributes for Tunnel Protocol Support"
15 *
16 * RFC 2869:
17 * "RADIUS Extensions"
18 *
19 * Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15
20 *
21 * TODO: Among other things to print ok MacIntosh and Vendor values
22 */
23
24 #ifndef lint
25 static const char rcsid[] =
26 "$Id: print-radius.c,v 1.9 2001-07-15 19:27:45 guy Exp $";
27 #endif
28
29 #ifdef HAVE_CONFIG_H
30 #include "config.h"
31 #endif
32
33 #include <string.h>
34
35 #include <sys/param.h>
36
37 #include <netinet/in.h>
38
39 #include <stdio.h>
40
41 #include "interface.h"
42 #include "addrtoname.h"
43 #include "extract.h"
44
45 #define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) )
46
47 #define PRINT_HEX(bytes_len, ptr_data) \
48 while(bytes_len) \
49 { \
50 printf("%02X", *ptr_data ); \
51 ptr_data++; \
52 bytes_len--; \
53 }
54
55
56 /* Radius packet codes */
57 #define RADCMD_ACCESS_REQ 1 /* Access-Request */
58 #define RADCMD_ACCESS_ACC 2 /* Access-Accept */
59 #define RADCMD_ACCESS_REJ 3 /* Access-Reject */
60 #define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */
61 #define RADCMD_ACCOUN_RES 5 /* Accounting-Response */
62 #define RADCMD_ACCESS_CHA 11 /* Access-Challenge */
63 #define RADCMD_STATUS_SER 12 /* Status-Server */
64 #define RADCMD_STATUS_CLI 13 /* Status-Client */
65 #define RADCMD_RESERVED 255 /* Reserved */
66
67
68 /********************************/
69 /* Begin Radius Attribute types */
70 /********************************/
71 #define SERV_TYPE 6
72 #define FRM_IPADDR 8
73 #define LOG_IPHOST 14
74 #define LOG_SERVICE 15
75 #define FRM_IPX 23
76 #define SESSION_TIMEOUT 27
77 #define IDLE_TIMEOUT 28
78 #define FRM_ATALK_LINK 37
79 #define FRM_ATALK_NETWORK 38
80
81 #define ACCT_DELAY 41
82 #define ACCT_SESSION_TIME 46
83
84 #define TUNNEL_TYPE 64
85 #define TUNNEL_MEDIUM 65
86 #define TUNNEL_CLIENT_END 66
87 #define TUNNEL_SERVER_END 67
88 #define TUNNEL_PASS 69
89
90 #define ARAP_PASS 70
91 #define ARAP_FEATURES 71
92
93 #define TUNNEL_PRIV_GROUP 81
94 #define TUNNEL_ASSIGN_ID 82
95 #define TUNNEL_PREFERENCE 83
96
97 #define ARAP_CHALLENGE_RESP 84
98 #define ACCT_INT_INTERVAL 85
99
100 #define TUNNEL_CLIENT_AUTH 90
101 #define TUNNEL_SERVER_AUTH 91
102 /********************************/
103 /* End Radius Attribute types */
104 /********************************/
105
106
107 static void print_attr_string(register u_char *, u_int, u_short );
108 static void print_attr_num(register u_char *, u_int, u_short );
109 static void print_attr_address(register u_char *, u_int, u_short);
110 static void print_attr_time(register u_char *, u_int, u_short);
111 static void print_attr_strange(register u_char *, u_int, u_short);
112
113
114 struct radius_hdr { u_int8_t code; /* Radius packet code */
115 u_int8_t id; /* Radius packet id */
116 u_int16_t len; /* Radius total length */
117 u_int8_t auth[16]; /* Authenticator */
118 };
119
120 #define MIN_RADIUS_LEN 20
121
122 struct radius_attr { u_int8_t type; /* Attribute type */
123 u_int8_t len; /* Attribute length */
124 };
125
126
127 /* Service-Type Attribute standard values */
128 static const char *serv_type[]={ NULL,
129 "Login",
130 "Framed",
131 "Callback Login",
132 "Callback Framed",
133 "Outbound",
134 "Administrative",
135 "NAS Prompt",
136 "Authenticate Only",
137 "Callback NAS Prompt",
138 "Call Check",
139 "Callback Administrative",
140 };
141
142 /* Framed-Protocol Attribute standard values */
143 static const char *frm_proto[]={ NULL,
144 "PPP",
145 "SLIP",
146 "ARAP",
147 "Gandalf proprietary",
148 "Xylogics IPX/SLIP",
149 "X.75 Synchronous",
150 };
151
152 /* Framed-Routing Attribute standard values */
153 static const char *frm_routing[]={ "None",
154 "Send",
155 "Listen",
156 "Send&Listen",
157 };
158
159 /* Framed-Compression Attribute standard values */
160 static const char *frm_comp[]={ "None",
161 "VJ TCP/IP",
162 "IPX",
163 "Stac-LZS",
164 };
165
166 /* Login-Service Attribute standard values */
167 static const char *login_serv[]={ "Telnet",
168 "Rlogin",
169 "TCP Clear",
170 "PortMaster(proprietary)",
171 "LAT",
172 "X.25-PAD",
173 "X.25-T3POS",
174 "Unassigned",
175 "TCP Clear Quiet",
176 };
177
178
179 /* Termination-Action Attribute standard values */
180 static const char *term_action[]={ "Default",
181 "RADIUS-Request",
182 };
183
184 /* NAS-Port-Type Attribute standard values */
185 static const char *nas_port_type[]={ "Async",
186 "Sync",
187 "ISDN Sync",
188 "ISDN Async V.120",
189 "ISDN Async V.110",
190 "Virtual",
191 "PIAFS",
192 "HDLC Clear Channel",
193 "X.25",
194 "X.75",
195 "G.3 Fax",
196 "SDSL",
197 "ADSL-CAP",
198 "ADSL-DMT",
199 "ISDN-DSL",
200 "Ethernet",
201 "xDSL",
202 "Cable",
203 "Wireless - Other",
204 "Wireless - IEEE 802.11",
205 };
206
207 /* Acct-Status-Type Accounting Attribute standard values */
208 static const char *acct_status[]={ NULL,
209 "Start",
210 "Stop",
211 "Interim-Update",
212 "Unassigned",
213 "Unassigned",
214 "Unassigned",
215 "Accounting-On",
216 "Accounting-Off",
217 "Tunnel-Start",
218 "Tunnel-Stop",
219 "Tunnel-Reject",
220 "Tunnel-Link-Start",
221 "Tunnel-Link-Stop",
222 "Tunnel-Link-Reject",
223 "Failed",
224 };
225
226 /* Acct-Authentic Accounting Attribute standard values */
227 static const char *acct_auth[]={ NULL,
228 "RADIUS",
229 "Local",
230 "Remote",
231 };
232
233 /* Acct-Terminate-Cause Accounting Attribute standard values */
234 static const char *acct_term[]={ NULL,
235 "User Request",
236 "Lost Carrier",
237 "Lost Service",
238 "Idle Timeout",
239 "Session Timeout",
240 "Admin Reset",
241 "Admin Reboot",
242 "Port Error",
243 "NAS Error",
244 "NAS Request",
245 "NAS Reboot",
246 "Port Unneeded",
247 "Port Preempted",
248 "Port Suspended",
249 "Service Unavailable",
250 "Callback",
251 "User Error",
252 "Host Request",
253 };
254
255 /* Tunnel-Type Attribute standard values */
256 static const char *tunnel_type[]={ NULL,
257 "PPTP",
258 "L2F",
259 "L2TP",
260 "ATMP",
261 "VTP",
262 "AH",
263 "IP-IP",
264 "MIN-IP-IP",
265 "ESP",
266 "GRE",
267 "DVS",
268 "IP-in-IP Tunneling",
269 };
270
271 /* Tunnel-Medium-Type Attribute standard values */
272 static const char *tunnel_medium[]={ NULL,
273 "IPv4",
274 "IPv6",
275 "NSAP",
276 "HDLC",
277 "BBN 1822",
278 "802",
279 "E.163",
280 "E.164",
281 "F.69",
282 "X.121",
283 "IPX",
284 "Appletalk",
285 "Decnet IV",
286 "Banyan Vines",
287 "E.164 with NSAP subaddress",
288 };
289
290 /* ARAP-Zone-Access Attribute standard values */
291 static const char *arap_zone[]={ NULL,
292 "Only access to dfl zone",
293 "Use zone filter inc.",
294 "Not used",
295 "Use zone filter exc.",
296 };
297
298 static const char *prompt[]={ "No Echo",
299 "Echo",
300 };
301
302
303 struct attrtype { char *name; /* Attribute name */
304 const char **subtypes; /* Standard Values (if any) */
305 u_char siz_subtypes; /* Size of total standard values */
306 u_char first_subtype; /* First standard value is 0 or 1 */
307 void (*print_func)(register u_char *, u_int, u_short );
308 } attr_type[]=
309 {
310 { NULL, NULL, 0, 0, NULL },
311 { "User", NULL, 0, 0, print_attr_string },
312 { "Pass", NULL, 0, 0, NULL },
313 { "CHAP-Pass", NULL, 0, 0, NULL },
314 { "NAS_ipaddr", NULL, 0, 0, print_attr_address },
315 { "NAS_port", NULL, 0, 0, print_attr_num },
316 { "Service_type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num },
317 { "Framed_proto", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num },
318 { "Framed_ipaddr", NULL, 0, 0, print_attr_address },
319 { "Framed_ipnet", NULL, 0, 0, print_attr_address },
320 { "Framed_routing", frm_routing, TAM_SIZE(frm_routing), 0,
321 print_attr_num },
322 { "Filter_id", NULL, 0, 0, print_attr_string },
323 { "Framed_mtu", NULL, 0, 0, print_attr_num },
324 { "Framed_compress", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num },
325 { "Login_iphost", NULL, 0, 0, print_attr_address },
326 { "Login_service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num },
327 { "Login_TCP_port", NULL, 0, 0, print_attr_num },
328 /*17*/ { "Unassigned", NULL, 0, 0, NULL },
329 { "Reply", NULL, 0, 0, print_attr_string },
330 { "Callback-number", NULL, 0, 0, print_attr_string },
331 { "Callback-id", NULL, 0, 0, print_attr_string },
332 /*21*/ { "Unassigned", NULL, 0, 0, NULL },
333 { "Framed_route", NULL, 0, 0, print_attr_string },
334 { "Framed_ipx_net", NULL, 0, 0, print_attr_num },
335 { "State", NULL, 0, 0, print_attr_string },
336 { "Class", NULL, 0, 0, print_attr_string },
337 { "Vendor_specific", NULL, 0, 0, print_attr_string },
338 { "Session_timeout", NULL, 0, 0, print_attr_num },
339 { "Idle_timeout", NULL, 0, 0, print_attr_num },
340 { "Term_action", term_action, TAM_SIZE(term_action), 0, print_attr_num },
341 { "Called_station", NULL, 0, 0, print_attr_string },
342 { "Calling_station", NULL, 0, 0, print_attr_string },
343 { "NAS_id", NULL, 0, 0, print_attr_string },
344 { "Proxy_state", NULL, 0, 0, print_attr_string },
345 { "Login_LAT_service", NULL, 0, 0, print_attr_string },
346 { "Login_LAT_node", NULL, 0, 0, print_attr_string },
347 { "Login_LAT_group", NULL, 0, 0, print_attr_string },
348 { "Framed_atalk_link", NULL, 0, 0, print_attr_num },
349 { "Framed_atalk_net", NULL, 0, 0, print_attr_num },
350 { "Framed_atalk_zone", NULL, 0, 0, print_attr_string },
351 { "Acct_status", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num },
352 { "Acct_delay", NULL, 0, 0, print_attr_num },
353 { "Acct_in_octets", NULL, 0, 0, print_attr_num },
354 { "Acct_out_octets", NULL, 0, 0, print_attr_num },
355 { "Acct_session_id", NULL, 0, 0, print_attr_string },
356 { "Acct_authentic", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num },
357 { "Acct_session_time", NULL, 0, 0, print_attr_num },
358 { "Acct_in_packets", NULL, 0, 0, print_attr_num },
359 { "Acct_out_packets", NULL, 0, 0, print_attr_num },
360 { "Acct_term_cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num },
361 { "Acct_multi_session_id", NULL, 0, 0, print_attr_string },
362 { "Acct_link_count", NULL, 0, 0, print_attr_num },
363 { "Acct_in_giga", NULL, 0, 0, print_attr_num },
364 { "Acct_out_giga", NULL, 0, 0, print_attr_num },
365 /*54*/ { "Unassigned", NULL, 0, 0, NULL },
366 { "Event_timestamp", NULL, 0, 0, print_attr_time },
367 /*56*/ { "Unassigned", NULL, 0, 0, NULL },
368 /*57*/ { "Unassigned", NULL, 0, 0, NULL },
369 /*58*/ { "Unassigned", NULL, 0, 0, NULL },
370 /*59*/ { "Unassigned", NULL, 0, 0, NULL },
371 { "CHAP_challenge", NULL, 0, 0, print_attr_string },
372 { "NAS_port_type", nas_port_type, TAM_SIZE(nas_port_type), 0,
373 print_attr_num },
374 { "Port_limit", NULL, 0, 0, print_attr_num },
375 /*63*/ { "Login_LAT_port", NULL, 0, 0, print_attr_string },
376 { "Tunnel_type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num },
377 { "Tunnel_medium", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1,
378 print_attr_num },
379 { "Tunnel_client_end", NULL, 0, 0, print_attr_string },
380 { "Tunnel_server_end", NULL, 0, 0, print_attr_string },
381 { "Acct_tunnel_connect", NULL, 0, 0, print_attr_string },
382 { "Tunnel_pass", NULL, 0, 0, print_attr_string },
383 { "ARAP_pass", NULL, 0, 0, print_attr_strange },
384 { "ARAP_feature", NULL, 0, 0, print_attr_strange },
385 /*72*/ { "ARAP_zone_acces", arap_zone, TAM_SIZE(arap_zone)-1, 1,
386 print_attr_num },
387 { "ARAP_security", NULL, 0, 0, print_attr_string },
388 { "ARAP_security_data", NULL, 0, 0, print_attr_string },
389 { "Password_retry", NULL, 0, 0, print_attr_num },
390 { "Prompt", prompt, TAM_SIZE(prompt), 0, print_attr_num },
391 { "Connect_info", NULL, 0, 0, print_attr_string },
392 { "Config_token", NULL, 0, 0, print_attr_string },
393 { "EAP_msg", NULL, 0, 0, print_attr_string },
394 /*80*/ { "Message_auth", NULL, 0, 0, print_attr_string },
395 { "Tunnel_priv_group", NULL, 0, 0, print_attr_string },
396 { "Tunnel_assign_id", NULL, 0, 0, print_attr_string },
397 { "Tunnel_pref", NULL, 0, 0, print_attr_num },
398 { "ARAP_challenge_resp", NULL, 0, 0, print_attr_strange },
399 { "Acct_interim_interval", NULL, 0, 0, print_attr_num },
400 /*86*/ { "Acct_tunnel_pack_lost", NULL, 0, 0, print_attr_num },
401 { "NAS_port_id", NULL, 0, 0, print_attr_string },
402 { "Framed_pool", NULL, 0, 0, print_attr_string },
403 { "Unassigned", NULL, 0, 0, NULL },
404 { "Tunnel_client_auth_id", NULL, 0, 0, print_attr_string },
405 { "Tunnel_server_auth_id", NULL, 0, 0, print_attr_string },
406 /*92*/ { "Unassigned", NULL, 0, 0, NULL },
407 /*93*/ { "Unassigned", NULL, 0, 0, NULL }
408 };
409
410
411 /*****************************/
412 /* Print an attribute string */
413 /* value pointed by 'data' */
414 /* and 'length' size. */
415 /*****************************/
416 /* Returns nothing. */
417 /*****************************/
418 static void
419 print_attr_string(register u_char *data, u_int length, u_short attr_code )
420 {
421 register u_int i;
422
423 TCHECK2(data[0],length);
424
425 printf("{");
426 switch(attr_code)
427 {
428 case TUNNEL_PASS:
429 if (*data && (*data <=0x1F) )
430 printf("Tag[%d] ",*data);
431 data++;
432 printf("Salt[%d] ",EXTRACT_16BITS(data) );
433 data+=2;
434 length-=2;
435 break;
436 case TUNNEL_CLIENT_END:
437 case TUNNEL_SERVER_END:
438 case TUNNEL_PRIV_GROUP:
439 case TUNNEL_ASSIGN_ID:
440 case TUNNEL_CLIENT_AUTH:
441 case TUNNEL_SERVER_AUTH:
442 if (*data <= 0x1F)
443 {
444 printf("Tag[%d] ",*data);
445 data++;
446 length--;
447 }
448 break;
449 }
450
451 for (i=0; i < length ; i++, data++)
452 printf("%c",(*data < 32 || *data > 128) ? '.' : *data );
453
454 printf("}");
455
456 return;
457
458 trunc:
459 printf("|radius");
460 }
461
462
463 /******************************/
464 /* Print an attribute numeric */
465 /* value pointed by 'data' */
466 /* and 'length' size. */
467 /******************************/
468 /* Returns nothing. */
469 /******************************/
470 static void
471 print_attr_num(register u_char *data, u_int length, u_short attr_code )
472 {
473 u_int8_t tag;
474 u_int32_t timeout;
475
476 if (length != 4)
477 {
478 printf("{length %u != 4}", length);
479 return;
480 }
481
482 TCHECK2(data[0],4);
483 /* This attribute has standard values */
484 if (attr_type[attr_code].siz_subtypes)
485 {
486 static const char **table;
487 u_int32_t data_value;
488 table = attr_type[attr_code].subtypes;
489
490 if ( (attr_code == TUNNEL_TYPE) || (attr_code == TUNNEL_MEDIUM) )
491 {
492 if (!*data)
493 printf("{Tag[Unused]");
494 else
495 printf("{Tag[%d]", *data);
496 data++;
497 data_value = EXTRACT_24BITS(data);
498 }
499 else
500 {
501 data_value = EXTRACT_32BITS(data);
502 }
503 if ( data_value <= (attr_type[attr_code].siz_subtypes - 1 +
504 attr_type[attr_code].first_subtype) )
505 printf("{%s}",table[data_value]);
506 else
507 printf("{#%d}",data_value);
508 }
509 else
510 {
511 switch(attr_code) /* Be aware of special cases... */
512 {
513 case FRM_IPX:
514 if (EXTRACT_32BITS( data) == 0xFFFFFFFE )
515 printf("{NAS_select}");
516 else
517 printf("{%d}",EXTRACT_32BITS( data) );
518 break;
519
520 case SESSION_TIMEOUT:
521 case IDLE_TIMEOUT:
522 case ACCT_DELAY:
523 case ACCT_SESSION_TIME:
524 case ACCT_INT_INTERVAL:
525 timeout = EXTRACT_32BITS( data);
526 if ( timeout < 60 )
527 printf( "{%02d secs}", timeout);
528 else
529 {
530 if ( timeout < 3600 )
531 printf( "{%02d:%02d min}",
532 timeout / 60, timeout % 60);
533 else
534 printf( "{%02d:%02d:%02d hours}",
535 timeout / 3600, (timeout % 3600) / 60,
536 timeout % 60);
537 }
538 break;
539
540 case FRM_ATALK_LINK:
541 if (EXTRACT_32BITS(data) )
542 printf("{%d}",EXTRACT_32BITS(data) );
543 else
544 printf("{Unnumbered}" );
545 break;
546
547 case FRM_ATALK_NETWORK:
548 if (EXTRACT_32BITS(data) )
549 printf("{%d}",EXTRACT_32BITS(data) );
550 else
551 printf("{NAS_assign}" );
552 break;
553
554 case TUNNEL_PREFERENCE:
555 tag = *data;
556 data++;
557 if (tag == 0)
558 printf("{Tag[Unused] %d}",EXTRACT_24BITS(data) );
559 else
560 printf("{Tag[%d] %d}", tag, EXTRACT_24BITS(data) );
561 break;
562
563 default:
564 printf("{%d}",EXTRACT_32BITS( data) );
565 break;
566
567 } /* switch */
568
569 } /* if-else */
570
571 return;
572
573 trunc:
574 printf("|radius}");
575 }
576
577
578 /*****************************/
579 /* Print an attribute IPv4 */
580 /* address value pointed by */
581 /* 'data' and 'length' size. */
582 /*****************************/
583 /* Returns nothing. */
584 /*****************************/
585 static void
586 print_attr_address(register u_char *data, u_int length, u_short attr_code )
587 {
588 if (length != 4)
589 {
590 printf("{length %u != 4}", length);
591 return;
592 }
593
594 TCHECK2(data[0],4);
595
596 switch(attr_code)
597 {
598 case FRM_IPADDR:
599 case LOG_IPHOST:
600 if (EXTRACT_32BITS(data) == 0xFFFFFFFF )
601 printf("{User_select}");
602 else
603 if (EXTRACT_32BITS(data) == 0xFFFFFFFE )
604 printf("{NAS_select}");
605 else
606 printf("{%s}",ipaddr_string(data));
607 break;
608
609 default:
610 printf("{%s}",ipaddr_string(data) );
611 break;
612 }
613
614 return;
615
616 trunc:
617 printf("{|radius}");
618 }
619
620
621 /*************************************/
622 /* Print an attribute of 'secs since */
623 /* January 1, 1970 00:00 UTC' value */
624 /* pointed by 'data' and 'length' */
625 /* size. */
626 /*************************************/
627 /* Returns nothing. */
628 /*************************************/
629 static void print_attr_time(register u_char *data, u_int length, u_short attr_code)
630 {
631 time_t attr_time;
632 char string[26];
633
634 if (length != 4)
635 {
636 printf("{length %u != 4}", length);
637 return;
638 }
639
640 TCHECK2(data[0],4);
641
642 attr_time = EXTRACT_32BITS(data);
643 strlcpy(string, ctime(&attr_time), sizeof(string));
644 /* Get rid of the newline */
645 string[24] = '\0';
646 printf("{%.24s}", string);
647 return;
648
649 trunc:
650 printf("{|radius}");
651 }
652
653
654 /***********************************/
655 /* Print an attribute of 'strange' */
656 /* data format pointed by 'data' */
657 /* and 'length' size. */
658 /***********************************/
659 /* Returns nothing. */
660 /***********************************/
661 static void print_attr_strange(register u_char *data, u_int length, u_short attr_code)
662 {
663 u_short len_data;
664
665 switch(attr_code)
666 {
667 case ARAP_PASS:
668 if (length != 16)
669 {
670 printf("{length %u != 16}", length);
671 return;
672 }
673 printf("{User_challenge[");
674 TCHECK2(data[0],8);
675 len_data = 8;
676 PRINT_HEX(len_data, data);
677 printf("] User_resp[");
678 TCHECK2(data[0],8);
679 len_data = 8;
680 PRINT_HEX(len_data, data);
681 printf("]}");
682 break;
683
684 case ARAP_FEATURES:
685 if (length != 14)
686 {
687 printf("{length %u != 14}", length);
688 return;
689 }
690 TCHECK2(data[0],1);
691 if (*data)
692 printf("{User_can_change_pass");
693 else
694 printf("{User_cant_change_pass");
695 data++;
696 TCHECK2(data[0],1);
697 printf(" Min_pass_len[%d]",*data);
698 data++;
699 printf(" Pass_created_at[");
700 TCHECK2(data[0],4);
701 len_data = 4;
702 PRINT_HEX(len_data, data);
703 printf("] Pass_expired_in[");
704 TCHECK2(data[0],4);
705 len_data = 4;
706 PRINT_HEX(len_data, data);
707 printf("] Current_time[");
708 len_data = 4;
709 TCHECK2(data[0],4);
710 PRINT_HEX(len_data, data);
711 printf("]}");
712 break;
713
714 case ARAP_CHALLENGE_RESP:
715 if (length < 8)
716 {
717 printf("{length %u != 8}", length);
718 return;
719 }
720 printf("{");
721 TCHECK2(data[0],8);
722 len_data = 8;
723 PRINT_HEX(len_data, data);
724 printf("}");
725 break;
726 }
727
728 trunc:
729 printf("|radius}");
730 }
731
732
733
734 static void
735 radius_attr_print(register const u_char *attr, u_int length)
736 {
737 register const struct radius_attr *rad_attr = (struct radius_attr *)attr;
738
739 if (length < 3)
740 {
741 printf(" [|radius]");
742 return;
743 }
744
745 printf(" Attr[ ");
746 while (length > 0)
747 {
748 if (rad_attr->len == 0)
749 {
750 printf("(zero-length attribute)");
751 return;
752 }
753 if ( rad_attr->len <= length )
754 {
755 if ( !rad_attr->type || (rad_attr->type > (TAM_SIZE(attr_type)-1)) )
756 printf("#%d",rad_attr->type);
757 else
758 {
759 printf(" %s",attr_type[rad_attr->type].name);
760
761 if (rad_attr->len > 2)
762 {
763 if ( attr_type[rad_attr->type].print_func )
764 (*attr_type[rad_attr->type].print_func)(
765 ((u_char *)(rad_attr+1)),
766 rad_attr->len - 2, rad_attr->type);
767 }
768 }
769 }
770 else
771 {
772 printf(" [|radius]");
773 return;
774 }
775 length-=(rad_attr->len);
776 rad_attr = (struct radius_attr *)( ((char *)(rad_attr))+rad_attr->len);
777 }
778
779 printf(" ]");
780 }
781
782
783 void
784 radius_print(const u_char *dat, u_int length)
785 {
786 register const struct radius_hdr *rad;
787 register int i;
788 int len;
789
790 i = min(length, snapend - dat);
791
792 if (i < MIN_RADIUS_LEN)
793 {
794 printf(" [|radius]");
795 return;
796 }
797
798 rad = (struct radius_hdr *)dat;
799 len = ntohs(rad->len);
800
801 if (len < MIN_RADIUS_LEN)
802 {
803 printf(" [|radius]");
804 return;
805 }
806
807 if (len < i)
808 i = len;
809
810 i -= MIN_RADIUS_LEN;
811
812 switch (rad->code)
813 {
814 case RADCMD_ACCESS_REQ:
815 printf(" rad-access-req %d", length);
816 break;
817
818 case RADCMD_ACCESS_ACC:
819 printf(" rad-access-accept %d", length);
820 break;
821
822 case RADCMD_ACCESS_REJ:
823 printf(" rad-access-reject %d", length);
824 break;
825
826 case RADCMD_ACCOUN_REQ:
827 printf(" rad-account-req %d", length);
828 break;
829
830 case RADCMD_ACCOUN_RES:
831 printf(" rad-account-resp %d", length);
832 break;
833
834 case RADCMD_ACCESS_CHA:
835 printf(" rad-access-cha %d", length);
836 break;
837
838 case RADCMD_STATUS_SER:
839 printf(" rad-status-serv %d", length);
840 break;
841
842 case RADCMD_STATUS_CLI:
843 printf(" rad-status-cli %d", length);
844 break;
845
846 case RADCMD_RESERVED:
847 printf(" rad-reserved %d", length);
848 break;
849
850 default:
851 printf(" rad-#%d %d", rad->code, length);
852 break;
853 }
854 printf(" [id %d]", rad->id);
855
856 if (i)
857 radius_attr_print( dat + MIN_RADIUS_LEN, i);
858 }
[mirror] the TCPdump network dissector