d400589300f71e191e6b195cfc1fae513674b063
[dragonfly.git] / contrib / tcpdump-3.9 / print-pptp.c
1 /*
2  * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
3  *      The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that: (1) source code distributions
7  * retain the above copyright notice and this paragraph in its entirety, (2)
8  * distributions including binary code include the above copyright notice and
9  * this paragraph in its entirety in the documentation or other materials
10  * provided with the distribution, and (3) all advertising materials mentioning
11  * features or use of this software display the following acknowledgement:
12  * ``This product includes software developed by the University of California,
13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14  * the University nor the names of its contributors may be used to endorse
15  * or promote products derived from this software without specific prior
16  * written permission.
17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20  *
21  * PPTP support contributed by Motonori Shindo (mshindo@mshindo.net)
22  */
23
24
25 #ifndef lint
26 static const char rcsid[] _U_ =
27      "@(#) $Header: /tcpdump/master/tcpdump/print-pptp.c,v 1.11.2.1 2006/06/23 02:07:27 hannes Exp $";
28 #endif
29
30 #ifdef HAVE_CONFIG_H
31 #include "config.h"
32 #endif
33
34 #include <tcpdump-stdinc.h>
35
36 #include <stdio.h>
37
38 #include "interface.h"
39 #include "extract.h"
40
41 static char tstr[] = " [|pptp]";
42
43 #define PPTP_MSG_TYPE_CTRL      1       /* Control Message */
44 #define PPTP_MSG_TYPE_MGMT      2       /* Management Message (currently not used */
45 #define PPTP_MAGIC_COOKIE       0x1a2b3c4d      /* for sanity check */
46
47 #define PPTP_CTRL_MSG_TYPE_SCCRQ        1
48 #define PPTP_CTRL_MSG_TYPE_SCCRP        2
49 #define PPTP_CTRL_MSG_TYPE_StopCCRQ     3
50 #define PPTP_CTRL_MSG_TYPE_StopCCRP     4
51 #define PPTP_CTRL_MSG_TYPE_ECHORQ       5
52 #define PPTP_CTRL_MSG_TYPE_ECHORP       6
53 #define PPTP_CTRL_MSG_TYPE_OCRQ         7
54 #define PPTP_CTRL_MSG_TYPE_OCRP         8
55 #define PPTP_CTRL_MSG_TYPE_ICRQ         9
56 #define PPTP_CTRL_MSG_TYPE_ICRP         10
57 #define PPTP_CTRL_MSG_TYPE_ICCN         11
58 #define PPTP_CTRL_MSG_TYPE_CCRQ         12
59 #define PPTP_CTRL_MSG_TYPE_CDN          13
60 #define PPTP_CTRL_MSG_TYPE_WEN          14
61 #define PPTP_CTRL_MSG_TYPE_SLI          15
62
63 #define PPTP_FRAMING_CAP_ASYNC_MASK     0x00000001      /* Aynchronous */
64 #define PPTP_FRAMING_CAP_SYNC_MASK      0x00000002      /* Synchronous */
65
66 #define PPTP_BEARER_CAP_ANALOG_MASK     0x00000001      /* Analog */
67 #define PPTP_BEARER_CAP_DIGITAL_MASK    0x00000002      /* Digital */
68
69 static const char *pptp_message_type_string[] = {
70         "NOT_DEFINED",          /* 0  Not defined in the RFC2637 */
71         "SCCRQ",                /* 1  Start-Control-Connection-Request */
72         "SCCRP",                /* 2  Start-Control-Connection-Reply */
73         "StopCCRQ",             /* 3  Stop-Control-Connection-Request */
74         "StopCCRP",             /* 4  Stop-Control-Connection-Reply */
75         "ECHORQ",               /* 5  Echo Request */
76         "ECHORP",               /* 6  Echo Reply */
77
78         "OCRQ",                 /* 7  Outgoing-Call-Request */
79         "OCRP",                 /* 8  Outgoing-Call-Reply */
80         "ICRQ",                 /* 9  Incoming-Call-Request */
81         "ICRP",                 /* 10 Incoming-Call-Reply */
82         "ICCN",                 /* 11 Incoming-Call-Connected */
83         "CCRQ",                 /* 12 Call-Clear-Request */
84         "CDN",                  /* 13 Call-Disconnect-Notify */
85
86         "WEN",                  /* 14 WAN-Error-Notify */
87
88         "SLI"                   /* 15 Set-Link-Info */
89 #define PPTP_MAX_MSGTYPE_INDEX  16
90 };
91
92 /* common for all PPTP control messages */
93 struct pptp_hdr {
94         u_int16_t length;
95         u_int16_t msg_type;
96         u_int32_t magic_cookie;
97         u_int16_t ctrl_msg_type;
98         u_int16_t reserved0;
99 };
100
101 struct pptp_msg_sccrq {
102         u_int16_t proto_ver;
103         u_int16_t reserved1;
104         u_int32_t framing_cap;
105         u_int32_t bearer_cap;
106         u_int16_t max_channel;
107         u_int16_t firm_rev;
108         u_char hostname[64];
109         u_char vendor[64];
110 };
111
112 struct pptp_msg_sccrp {
113         u_int16_t proto_ver;
114         u_int8_t result_code;
115         u_int8_t err_code;
116         u_int32_t framing_cap;
117         u_int32_t bearer_cap;
118         u_int16_t max_channel;
119         u_int16_t firm_rev;
120         u_char hostname[64];
121         u_char vendor[64];
122 };
123
124 struct pptp_msg_stopccrq {
125         u_int8_t reason;
126         u_int8_t reserved1;
127         u_int16_t reserved2;
128 };
129
130 struct pptp_msg_stopccrp {
131         u_int8_t result_code;
132         u_int8_t err_code;
133         u_int16_t reserved1;
134 };
135
136 struct pptp_msg_echorq {
137         u_int32_t id;
138 };
139
140 struct pptp_msg_echorp {
141         u_int32_t id;
142         u_int8_t result_code;
143         u_int8_t err_code;
144         u_int16_t reserved1;
145 };
146
147 struct pptp_msg_ocrq {
148         u_int16_t call_id;
149         u_int16_t call_ser;
150         u_int32_t min_bps;
151         u_int32_t max_bps;
152         u_int32_t bearer_type;
153         u_int32_t framing_type;
154         u_int16_t recv_winsiz;
155         u_int16_t pkt_proc_delay;
156         u_int16_t phone_no_len;
157         u_int16_t reserved1;
158         u_char phone_no[64];
159         u_char subaddr[64];
160 };
161
162 struct pptp_msg_ocrp {
163         u_int16_t call_id;
164         u_int16_t peer_call_id;
165         u_int8_t result_code;
166         u_int8_t err_code;
167         u_int16_t cause_code;
168         u_int32_t conn_speed;
169         u_int16_t recv_winsiz;
170         u_int16_t pkt_proc_delay;
171         u_int32_t phy_chan_id;
172 };
173
174 struct pptp_msg_icrq {
175         u_int16_t call_id;
176         u_int16_t call_ser;
177         u_int32_t bearer_type;
178         u_int32_t phy_chan_id;
179         u_int16_t dialed_no_len;
180         u_int16_t dialing_no_len;
181         u_char dialed_no[64];           /* DNIS */
182         u_char dialing_no[64];          /* CLID */
183         u_char subaddr[64];
184 };
185
186 struct pptp_msg_icrp {
187         u_int16_t call_id;
188         u_int16_t peer_call_id;
189         u_int8_t result_code;
190         u_int8_t err_code;
191         u_int16_t recv_winsiz;
192         u_int16_t pkt_proc_delay;
193         u_int16_t reserved1;
194 };
195
196 struct pptp_msg_iccn {
197         u_int16_t peer_call_id;
198         u_int16_t reserved1;
199         u_int32_t conn_speed;
200         u_int16_t recv_winsiz;
201         u_int16_t pkt_proc_delay;
202         u_int32_t framing_type;
203 };
204
205 struct pptp_msg_ccrq {
206         u_int16_t call_id;
207         u_int16_t reserved1;
208 };
209
210 struct pptp_msg_cdn {
211         u_int16_t call_id;
212         u_int8_t result_code;
213         u_int8_t err_code;
214         u_int16_t cause_code;
215         u_int16_t reserved1;
216         u_char call_stats[128];
217 };
218
219 struct pptp_msg_wen {
220         u_int16_t peer_call_id;
221         u_int16_t reserved1;
222         u_int32_t crc_err;
223         u_int32_t framing_err;
224         u_int32_t hardware_overrun;
225         u_int32_t buffer_overrun;
226         u_int32_t timeout_err;
227         u_int32_t align_err;
228 };
229
230 struct pptp_msg_sli {
231         u_int16_t peer_call_id;
232         u_int16_t reserved1;
233         u_int32_t send_accm;
234         u_int32_t recv_accm;
235 };
236
237 /* attributes that appear more than once in above messages:
238
239    Number of
240    occurence    attributes
241   --------------------------------------
242       2         u_int32_t bearer_cap;
243       2         u_int32_t bearer_type;
244       6         u_int16_t call_id;
245       2         u_int16_t call_ser;
246       2         u_int16_t cause_code;
247       2         u_int32_t conn_speed;
248       6         u_int8_t err_code;
249       2         u_int16_t firm_rev;
250       2         u_int32_t framing_cap;
251       2         u_int32_t framing_type;
252       2         u_char hostname[64];
253       2         u_int32_t id;
254       2         u_int16_t max_channel;
255       5         u_int16_t peer_call_id;
256       2         u_int32_t phy_chan_id;
257       4         u_int16_t pkt_proc_delay;
258       2         u_int16_t proto_ver;
259       4         u_int16_t recv_winsiz;
260       2         u_int8_t reserved1;
261       9         u_int16_t reserved1;
262       6         u_int8_t result_code;
263       2         u_char subaddr[64];
264       2         u_char vendor[64];
265
266   so I will prepare print out functions for these attributes (except for
267   reserved*).
268 */
269
270 /******************************************/
271 /* Attribute-specific print out functions */
272 /******************************************/
273
274 /* In these attribute-specific print-out functions, it't not necessary
275    to do TCHECK because they are already checked in the caller of
276    these functions. */
277
278 static void
279 pptp_bearer_cap_print(const u_int32_t *bearer_cap)
280 {
281         printf(" BEARER_CAP(");
282         if (EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_DIGITAL_MASK) {
283                 printf("D");
284         }
285         if (EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_ANALOG_MASK) {
286                 printf("A");
287         }
288         printf(")");
289 }
290
291 static void
292 pptp_bearer_type_print(const u_int32_t *bearer_type)
293 {
294         printf(" BEARER_TYPE(");
295         switch (EXTRACT_32BITS(bearer_type)) {
296         case 1:
297                 printf("A");    /* Analog */
298                 break;
299         case 2:
300                 printf("D");    /* Digital */
301                 break;
302         case 3:
303                 printf("Any");
304                 break;
305         default:
306                 printf("?");
307                 break;
308         }
309         printf(")");
310 }
311
312 static void
313 pptp_call_id_print(const u_int16_t *call_id)
314 {
315         printf(" CALL_ID(%u)", EXTRACT_16BITS(call_id));
316 }
317
318 static void
319 pptp_call_ser_print(const u_int16_t *call_ser)
320 {
321         printf(" CALL_SER_NUM(%u)", EXTRACT_16BITS(call_ser));
322 }
323
324 static void
325 pptp_cause_code_print(const u_int16_t *cause_code)
326 {
327         printf(" CAUSE_CODE(%u)", EXTRACT_16BITS(cause_code));
328 }
329
330 static void
331 pptp_conn_speed_print(const u_int32_t *conn_speed)
332 {
333         printf(" CONN_SPEED(%u)", EXTRACT_32BITS(conn_speed));
334 }
335
336 static void
337 pptp_err_code_print(const u_int8_t *err_code)
338 {
339         printf(" ERR_CODE(%u", *err_code);
340         if (vflag) {
341                 switch (*err_code) {
342                 case 0:
343                         printf(":None");
344                         break;
345                 case 1:
346                         printf(":Not-Connected");
347                         break;
348                 case 2:
349                         printf(":Bad-Format");
350                         break;
351                 case 3:
352                         printf(":Bad-Valude");
353                         break;
354                 case 4:
355                         printf(":No-Resource");
356                         break;
357                 case 5:
358                         printf(":Bad-Call-ID");
359                         break;
360                 case 6:
361                         printf(":PAC-Error");
362                         break;
363                 default:
364                         printf(":?");
365                         break;
366                 }
367         }
368         printf(")");
369 }
370
371 static void
372 pptp_firm_rev_print(const u_int16_t *firm_rev)
373 {
374         printf(" FIRM_REV(%u)", EXTRACT_16BITS(firm_rev));
375 }
376
377 static void
378 pptp_framing_cap_print(const u_int32_t *framing_cap)
379 {
380         printf(" FRAME_CAP(");
381         if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_ASYNC_MASK) {
382                 printf("A");            /* Async */
383         }
384         if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_SYNC_MASK) {
385                 printf("S");            /* Sync */
386         }
387         printf(")");
388 }
389
390 static void
391 pptp_framing_type_print(const u_int32_t *framing_type)
392 {
393         printf(" FRAME_TYPE(");
394         switch (EXTRACT_32BITS(framing_type)) {
395         case 1:
396                 printf("A");            /* Async */
397                 break;
398         case 2:
399                 printf("S");            /* Sync */
400                 break;
401         case 3:
402                 printf("E");            /* Either */
403                 break;
404         default:
405                 printf("?");
406                 break;
407         }
408         printf(")");
409 }
410
411 static void
412 pptp_hostname_print(const u_char *hostname)
413 {
414         printf(" HOSTNAME(%.64s)", hostname);
415 }
416
417 static void
418 pptp_id_print(const u_int32_t *id)
419 {
420         printf(" ID(%u)", EXTRACT_32BITS(id));
421 }
422
423 static void
424 pptp_max_channel_print(const u_int16_t *max_channel)
425 {
426         printf(" MAX_CHAN(%u)", EXTRACT_16BITS(max_channel));
427 }
428
429 static void
430 pptp_peer_call_id_print(const u_int16_t *peer_call_id)
431 {
432         printf(" PEER_CALL_ID(%u)", EXTRACT_16BITS(peer_call_id));
433 }
434
435 static void
436 pptp_phy_chan_id_print(const u_int32_t *phy_chan_id)
437 {
438         printf(" PHY_CHAN_ID(%u)", EXTRACT_32BITS(phy_chan_id));
439 }
440
441 static void
442 pptp_pkt_proc_delay_print(const u_int16_t *pkt_proc_delay)
443 {
444         printf(" PROC_DELAY(%u)", EXTRACT_16BITS(pkt_proc_delay));
445 }
446
447 static void
448 pptp_proto_ver_print(const u_int16_t *proto_ver)
449 {
450         printf(" PROTO_VER(%u.%u)",     /* Version.Revision */
451                EXTRACT_16BITS(proto_ver) >> 8,
452                EXTRACT_16BITS(proto_ver) & 0xff);
453 }
454
455 static void
456 pptp_recv_winsiz_print(const u_int16_t *recv_winsiz)
457 {
458         printf(" RECV_WIN(%u)", EXTRACT_16BITS(recv_winsiz));
459 }
460
461 static void
462 pptp_result_code_print(const u_int8_t *result_code, int ctrl_msg_type)
463 {
464         printf(" RESULT_CODE(%u", *result_code);
465         if (vflag) {
466                 switch (ctrl_msg_type) {
467                 case PPTP_CTRL_MSG_TYPE_SCCRP:
468                         switch (*result_code) {
469                         case 1:
470                                 printf(":Successful channel establishment");
471                                 break;
472                         case 2:
473                                 printf(":General error");
474                                 break;
475                         case 3:
476                                 printf(":Command channel already exists");
477                                 break;
478                         case 4:
479                                 printf(":Requester is not authorized to establish a command channel");
480                                 break;
481                         case 5:
482                                 printf(":The protocol version of the requester is not supported");
483                                 break;
484                         default:
485                                 printf(":?");
486                                 break;
487                         }
488                         break;
489                 case PPTP_CTRL_MSG_TYPE_StopCCRP:
490                 case PPTP_CTRL_MSG_TYPE_ECHORP:
491                         switch (*result_code) {
492                         case 1:
493                                 printf(":OK");
494                                 break;
495                         case 2:
496                                 printf(":General Error");
497                                 break;
498                         default:
499                                 printf(":?");
500                                 break;
501                         }
502                         break;
503                 case PPTP_CTRL_MSG_TYPE_OCRP:
504                         switch (*result_code) {
505                         case 1:
506                                 printf(":Connected");
507                                 break;
508                         case 2:
509                                 printf(":General Error");
510                                 break;
511                         case 3:
512                                 printf(":No Carrier");
513                                 break;
514                         case 4:
515                                 printf(":Busy");
516                                 break;
517                         case 5:
518                                 printf(":No Dial Tone");
519                                 break;
520                         case 6:
521                                 printf(":Time-out");
522                                 break;
523                         case 7:
524                                 printf(":Do Not Accept");
525                                 break;
526                         default:
527                                 printf(":?");
528                                 break;
529                         }
530                         break;
531                 case PPTP_CTRL_MSG_TYPE_ICRP:
532                         switch (*result_code) {
533                         case 1:
534                                 printf(":Connect");
535                                 break;
536                         case 2:
537                                 printf(":General Error");
538                                 break;
539                         case 3:
540                                 printf(":Do Not Accept");
541                                 break;
542                         default:
543                                 printf(":?");
544                                 break;
545                         }
546                         break;
547                 case PPTP_CTRL_MSG_TYPE_CDN:
548                         switch (*result_code) {
549                         case 1:
550                                 printf(":Lost Carrier");
551                                 break;
552                         case 2:
553                                 printf(":General Error");
554                                 break;
555                         case 3:
556                                 printf(":Admin Shutdown");
557                                 break;
558                         case 4:
559                                 printf(":Request");
560                         default:
561                                 printf(":?");
562                                 break;
563                         break;
564                         }
565                 default:
566                         /* assertion error */
567                         break;
568                 }
569         }
570         printf(")");
571 }
572
573 static void
574 pptp_subaddr_print(const u_char *subaddr)
575 {
576         printf(" SUB_ADDR(%.64s)", subaddr);
577 }
578
579 static void
580 pptp_vendor_print(const u_char *vendor)
581 {
582         printf(" VENDOR(%.64s)", vendor);
583 }
584
585 /************************************/
586 /* PPTP message print out functions */
587 /************************************/
588 static void
589 pptp_sccrq_print(const u_char *dat)
590 {
591         struct pptp_msg_sccrq *ptr = (struct pptp_msg_sccrq *)dat;
592
593         TCHECK(ptr->proto_ver);
594         pptp_proto_ver_print(&ptr->proto_ver);
595         TCHECK(ptr->reserved1);
596         TCHECK(ptr->framing_cap);
597         pptp_framing_cap_print(&ptr->framing_cap);
598         TCHECK(ptr->bearer_cap);
599         pptp_bearer_cap_print(&ptr->bearer_cap);
600         TCHECK(ptr->max_channel);
601         pptp_max_channel_print(&ptr->max_channel);
602         TCHECK(ptr->firm_rev);
603         pptp_firm_rev_print(&ptr->firm_rev);
604         TCHECK(ptr->hostname);
605         pptp_hostname_print(&ptr->hostname[0]);
606         TCHECK(ptr->vendor);
607         pptp_vendor_print(&ptr->vendor[0]);
608
609         return;
610
611 trunc:
612         printf("%s", tstr);
613 }
614
615 static void
616 pptp_sccrp_print(const u_char *dat)
617 {
618         struct pptp_msg_sccrp *ptr = (struct pptp_msg_sccrp *)dat;
619
620         TCHECK(ptr->proto_ver);
621         pptp_proto_ver_print(&ptr->proto_ver);
622         TCHECK(ptr->result_code);
623         pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_SCCRP);
624         TCHECK(ptr->err_code);
625         pptp_err_code_print(&ptr->err_code);
626         TCHECK(ptr->framing_cap);
627         pptp_framing_cap_print(&ptr->framing_cap);
628         TCHECK(ptr->bearer_cap);
629         pptp_bearer_cap_print(&ptr->bearer_cap);
630         TCHECK(ptr->max_channel);
631         pptp_max_channel_print(&ptr->max_channel);
632         TCHECK(ptr->firm_rev);
633         pptp_firm_rev_print(&ptr->firm_rev);
634         TCHECK(ptr->hostname);
635         pptp_hostname_print(&ptr->hostname[0]);
636         TCHECK(ptr->vendor);
637         pptp_vendor_print(&ptr->vendor[0]);
638
639         return;
640
641 trunc:
642         printf("%s", tstr);
643 }
644
645 static void
646 pptp_stopccrq_print(const u_char *dat)
647 {
648         struct pptp_msg_stopccrq *ptr = (struct pptp_msg_stopccrq *)dat;
649
650         TCHECK(ptr->reason);
651         printf(" REASON(%u", ptr->reason);
652         if (vflag) {
653                 switch (ptr->reason) {
654                 case 1:
655                         printf(":None");
656                         break;
657                 case 2:
658                         printf(":Stop-Protocol");
659                         break;
660                 case 3:
661                         printf(":Stop-Local-Shutdown");
662                         break;
663                 default:
664                         printf(":?");
665                         break;
666                 }
667         }
668         printf(")");
669         TCHECK(ptr->reserved1);
670         TCHECK(ptr->reserved2);
671
672         return;
673
674 trunc:
675         printf("%s", tstr);
676 }
677
678 static void
679 pptp_stopccrp_print(const u_char *dat)
680 {
681         struct pptp_msg_stopccrp *ptr = (struct pptp_msg_stopccrp *)dat;
682
683         TCHECK(ptr->result_code);
684         pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_StopCCRP);
685         TCHECK(ptr->err_code);
686         pptp_err_code_print(&ptr->err_code);
687         TCHECK(ptr->reserved1);
688
689         return;
690
691 trunc:
692         printf("%s", tstr);
693 }
694
695 static void
696 pptp_echorq_print(const u_char *dat)
697 {
698         struct pptp_msg_echorq *ptr = (struct pptp_msg_echorq *)dat;
699
700         TCHECK(ptr->id);
701         pptp_id_print(&ptr->id);
702
703         return;
704
705 trunc:
706         printf("%s", tstr);
707 }
708
709 static void
710 pptp_echorp_print(const u_char *dat)
711 {
712         struct pptp_msg_echorp *ptr = (struct pptp_msg_echorp *)dat;
713
714         TCHECK(ptr->id);
715         pptp_id_print(&ptr->id);
716         TCHECK(ptr->result_code);
717         pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_ECHORP);
718         TCHECK(ptr->err_code);
719         pptp_err_code_print(&ptr->err_code);
720         TCHECK(ptr->reserved1);
721
722         return;
723
724 trunc:
725         printf("%s", tstr);
726 }
727
728 static void
729 pptp_ocrq_print(const u_char *dat)
730 {
731         struct pptp_msg_ocrq *ptr = (struct pptp_msg_ocrq *)dat;
732
733         TCHECK(ptr->call_id);
734         pptp_call_id_print(&ptr->call_id);
735         TCHECK(ptr->call_ser);
736         pptp_call_ser_print(&ptr->call_ser);
737         TCHECK(ptr->min_bps);
738         printf(" MIN_BPS(%u)", EXTRACT_32BITS(&ptr->min_bps));
739         TCHECK(ptr->max_bps);
740         printf(" MAX_BPS(%u)", EXTRACT_32BITS(&ptr->max_bps));
741         TCHECK(ptr->bearer_type);
742         pptp_bearer_type_print(&ptr->bearer_type);
743         TCHECK(ptr->framing_type);
744         pptp_framing_type_print(&ptr->framing_type);
745         TCHECK(ptr->recv_winsiz);
746         pptp_recv_winsiz_print(&ptr->recv_winsiz);
747         TCHECK(ptr->pkt_proc_delay);
748         pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
749         TCHECK(ptr->phone_no_len);
750         printf(" PHONE_NO_LEN(%u)", EXTRACT_16BITS(&ptr->phone_no_len));
751         TCHECK(ptr->reserved1);
752         TCHECK(ptr->phone_no);
753         printf(" PHONE_NO(%.64s)", ptr->phone_no);
754         TCHECK(ptr->subaddr);
755         pptp_subaddr_print(&ptr->subaddr[0]);
756
757         return;
758
759 trunc:
760         printf("%s", tstr);
761 }
762
763 static void
764 pptp_ocrp_print(const u_char *dat)
765 {
766         struct pptp_msg_ocrp *ptr = (struct pptp_msg_ocrp *)dat;
767
768         TCHECK(ptr->call_id);
769         pptp_call_id_print(&ptr->call_id);
770         TCHECK(ptr->peer_call_id);
771         pptp_peer_call_id_print(&ptr->peer_call_id);
772         TCHECK(ptr->result_code);
773         pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_OCRP);
774         TCHECK(ptr->err_code);
775         pptp_err_code_print(&ptr->err_code);
776         TCHECK(ptr->cause_code);
777         pptp_cause_code_print(&ptr->cause_code);
778         TCHECK(ptr->conn_speed);
779         pptp_conn_speed_print(&ptr->conn_speed);
780         TCHECK(ptr->recv_winsiz);
781         pptp_recv_winsiz_print(&ptr->recv_winsiz);
782         TCHECK(ptr->pkt_proc_delay);
783         pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
784         TCHECK(ptr->phy_chan_id);
785         pptp_phy_chan_id_print(&ptr->phy_chan_id);
786
787         return;
788
789 trunc:
790         printf("%s", tstr);
791 }
792
793 static void
794 pptp_icrq_print(const u_char *dat)
795 {
796         struct pptp_msg_icrq *ptr = (struct pptp_msg_icrq *)dat;
797
798         TCHECK(ptr->call_id);
799         pptp_call_id_print(&ptr->call_id);
800         TCHECK(ptr->call_ser);
801         pptp_call_ser_print(&ptr->call_ser);
802         TCHECK(ptr->bearer_type);
803         pptp_bearer_type_print(&ptr->bearer_type);
804         TCHECK(ptr->phy_chan_id);
805         pptp_phy_chan_id_print(&ptr->phy_chan_id);
806         TCHECK(ptr->dialed_no_len);
807         printf(" DIALED_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialed_no_len));
808         TCHECK(ptr->dialing_no_len);
809         printf(" DIALING_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialing_no_len));
810         TCHECK(ptr->dialed_no);
811         printf(" DIALED_NO(%.64s)", ptr->dialed_no);
812         TCHECK(ptr->dialing_no);
813         printf(" DIALING_NO(%.64s)", ptr->dialing_no);
814         TCHECK(ptr->subaddr);
815         pptp_subaddr_print(&ptr->subaddr[0]);
816
817         return;
818
819 trunc:
820         printf("%s", tstr);
821 }
822
823 static void
824 pptp_icrp_print(const u_char *dat)
825 {
826         struct pptp_msg_icrp *ptr = (struct pptp_msg_icrp *)dat;
827
828         TCHECK(ptr->call_id);
829         pptp_call_id_print(&ptr->call_id);
830         TCHECK(ptr->peer_call_id);
831         pptp_peer_call_id_print(&ptr->peer_call_id);
832         TCHECK(ptr->result_code);
833         pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_ICRP);
834         TCHECK(ptr->err_code);
835         pptp_err_code_print(&ptr->err_code);
836         TCHECK(ptr->recv_winsiz);
837         pptp_recv_winsiz_print(&ptr->recv_winsiz);
838         TCHECK(ptr->pkt_proc_delay);
839         pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
840         TCHECK(ptr->reserved1);
841
842         return;
843
844 trunc:
845         printf("%s", tstr);
846 }
847
848 static void
849 pptp_iccn_print(const u_char *dat)
850 {
851         struct pptp_msg_iccn *ptr = (struct pptp_msg_iccn *)dat;
852
853         TCHECK(ptr->peer_call_id);
854         pptp_peer_call_id_print(&ptr->peer_call_id);
855         TCHECK(ptr->reserved1);
856         TCHECK(ptr->conn_speed);
857         pptp_conn_speed_print(&ptr->conn_speed);
858         TCHECK(ptr->recv_winsiz);
859         pptp_recv_winsiz_print(&ptr->recv_winsiz);
860         TCHECK(ptr->pkt_proc_delay);
861         pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
862         TCHECK(ptr->framing_type);
863         pptp_framing_type_print(&ptr->framing_type);
864
865         return;
866
867 trunc:
868         printf("%s", tstr);
869 }
870
871 static void
872 pptp_ccrq_print(const u_char *dat)
873 {
874         struct pptp_msg_ccrq *ptr = (struct pptp_msg_ccrq *)dat;
875
876         TCHECK(ptr->call_id);
877         pptp_call_id_print(&ptr->call_id);
878         TCHECK(ptr->reserved1);
879
880         return;
881
882 trunc:
883         printf("%s", tstr);
884 }
885
886 static void
887 pptp_cdn_print(const u_char *dat)
888 {
889         struct pptp_msg_cdn *ptr = (struct pptp_msg_cdn *)dat;
890
891         TCHECK(ptr->call_id);
892         pptp_call_id_print(&ptr->call_id);
893         TCHECK(ptr->result_code);
894         pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_CDN);
895         TCHECK(ptr->err_code);
896         pptp_err_code_print(&ptr->err_code);
897         TCHECK(ptr->cause_code);
898         pptp_cause_code_print(&ptr->cause_code);
899         TCHECK(ptr->reserved1);
900         TCHECK(ptr->call_stats);
901         printf(" CALL_STATS(%.128s)", ptr->call_stats);
902
903         return;
904
905 trunc:
906         printf("%s", tstr);
907 }
908
909 static void
910 pptp_wen_print(const u_char *dat)
911 {
912         struct pptp_msg_wen *ptr = (struct pptp_msg_wen *)dat;
913
914         TCHECK(ptr->peer_call_id);
915         pptp_peer_call_id_print(&ptr->peer_call_id);
916         TCHECK(ptr->reserved1);
917         TCHECK(ptr->crc_err);
918         printf(" CRC_ERR(%u)", EXTRACT_32BITS(&ptr->crc_err));
919         TCHECK(ptr->framing_err);
920         printf(" FRAMING_ERR(%u)", EXTRACT_32BITS(&ptr->framing_err));
921         TCHECK(ptr->hardware_overrun);
922         printf(" HARDWARE_OVERRUN(%u)", EXTRACT_32BITS(&ptr->hardware_overrun));
923         TCHECK(ptr->buffer_overrun);
924         printf(" BUFFER_OVERRUN(%u)", EXTRACT_32BITS(&ptr->buffer_overrun));
925         TCHECK(ptr->timeout_err);
926         printf(" TIMEOUT_ERR(%u)", EXTRACT_32BITS(&ptr->timeout_err));
927         TCHECK(ptr->align_err);
928         printf(" ALIGN_ERR(%u)", EXTRACT_32BITS(&ptr->align_err));
929
930         return;
931
932 trunc:
933         printf("%s", tstr);
934 }
935
936 static void
937 pptp_sli_print(const u_char *dat)
938 {
939         struct pptp_msg_sli *ptr = (struct pptp_msg_sli *)dat;
940
941         TCHECK(ptr->peer_call_id);
942         pptp_peer_call_id_print(&ptr->peer_call_id);
943         TCHECK(ptr->reserved1);
944         TCHECK(ptr->send_accm);
945         printf(" SEND_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->send_accm));
946         TCHECK(ptr->recv_accm);
947         printf(" RECV_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->recv_accm));
948
949         return;
950
951 trunc:
952         printf("%s", tstr);
953 }
954
955 void
956 pptp_print(const u_char *dat)
957 {
958         const struct pptp_hdr *hdr;
959         u_int32_t mc;
960         u_int16_t ctrl_msg_type;
961
962         printf(": pptp");
963
964         hdr = (struct pptp_hdr *)dat;
965
966         TCHECK(hdr->length);
967         if (vflag) {
968                 printf(" Length=%u", EXTRACT_16BITS(&hdr->length));
969         }
970         TCHECK(hdr->msg_type);
971         if (vflag) {
972                 switch(EXTRACT_16BITS(&hdr->msg_type)) {
973                 case PPTP_MSG_TYPE_CTRL:
974                         printf(" CTRL-MSG");
975                         break;
976                 case PPTP_MSG_TYPE_MGMT:
977                         printf(" MGMT-MSG");
978                         break;
979                 default:
980                         printf(" UNKNOWN-MSG-TYPE");
981                         break;
982                 }
983         }
984
985         TCHECK(hdr->magic_cookie);
986         mc = EXTRACT_32BITS(&hdr->magic_cookie);
987         if (mc != PPTP_MAGIC_COOKIE) {
988                 printf(" UNEXPECTED Magic-Cookie!!(%08x)", mc);
989         }
990         if (vflag || mc != PPTP_MAGIC_COOKIE) {
991                 printf(" Magic-Cookie=%08x", mc);
992         }
993         TCHECK(hdr->ctrl_msg_type);
994         ctrl_msg_type = EXTRACT_16BITS(&hdr->ctrl_msg_type);
995         if (ctrl_msg_type < PPTP_MAX_MSGTYPE_INDEX) {
996                 printf(" CTRL_MSGTYPE=%s",
997                        pptp_message_type_string[ctrl_msg_type]);
998         } else {
999                 printf(" UNKNOWN_CTRL_MSGTYPE(%u)", ctrl_msg_type);
1000         }
1001         TCHECK(hdr->reserved0);
1002
1003         dat += 12;
1004
1005         switch(ctrl_msg_type) {
1006         case PPTP_CTRL_MSG_TYPE_SCCRQ:
1007                 pptp_sccrq_print(dat);
1008                 break;
1009         case PPTP_CTRL_MSG_TYPE_SCCRP:
1010                 pptp_sccrp_print(dat);
1011                 break;
1012         case PPTP_CTRL_MSG_TYPE_StopCCRQ:
1013                 pptp_stopccrq_print(dat);
1014                 break;
1015         case PPTP_CTRL_MSG_TYPE_StopCCRP:
1016                 pptp_stopccrp_print(dat);
1017                 break;
1018         case PPTP_CTRL_MSG_TYPE_ECHORQ:
1019                 pptp_echorq_print(dat);
1020                 break;
1021         case PPTP_CTRL_MSG_TYPE_ECHORP:
1022                 pptp_echorp_print(dat);
1023                 break;
1024         case PPTP_CTRL_MSG_TYPE_OCRQ:
1025                 pptp_ocrq_print(dat);
1026                 break;
1027         case PPTP_CTRL_MSG_TYPE_OCRP:
1028                 pptp_ocrp_print(dat);
1029                 break;
1030         case PPTP_CTRL_MSG_TYPE_ICRQ:
1031                 pptp_icrq_print(dat);
1032                 break;
1033         case PPTP_CTRL_MSG_TYPE_ICRP:
1034                 pptp_icrp_print(dat);
1035                 break;
1036         case PPTP_CTRL_MSG_TYPE_ICCN:
1037                 pptp_iccn_print(dat);
1038                 break;
1039         case PPTP_CTRL_MSG_TYPE_CCRQ:
1040                 pptp_ccrq_print(dat);
1041                 break;
1042         case PPTP_CTRL_MSG_TYPE_CDN:
1043                 pptp_cdn_print(dat);
1044                 break;
1045         case PPTP_CTRL_MSG_TYPE_WEN:
1046                 pptp_wen_print(dat);
1047                 break;
1048         case PPTP_CTRL_MSG_TYPE_SLI:
1049                 pptp_sli_print(dat);
1050                 break;
1051         default:
1052                 /* do nothing */
1053                 break;
1054         }
1055
1056         return;
1057
1058 trunc:
1059         printf("%s", tstr);
1060 }