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Regenerate config files.
[tcpdump] / print-decnet.c
1 /*
2 * Copyright (c) 1992, 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
22 /* \summary: DECnet printer */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include <netdissect-stdinc.h>
29
30 struct mbuf;
31 struct rtentry;
32
33 #ifdef HAVE_NETDNET_DNETDB_H
34 #include <netdnet/dnetdb.h>
35 #endif
36
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40
41 #include "extract.h"
42 #include "netdissect.h"
43 #include "addrtoname.h"
44
45 static const char tstr[] = "[|decnet]";
46
47 #ifndef _WIN32
48 typedef uint8_t byte[1]; /* single byte field */
49 #else
50 /*
51 * the keyword 'byte' generates conflicts in Windows
52 */
53 typedef unsigned char Byte[1]; /* single byte field */
54 #define byte Byte
55 #endif /* _WIN32 */
56 typedef uint8_t word[2]; /* 2 byte field */
57 typedef uint8_t longword[4]; /* 4 bytes field */
58
59 /*
60 * Definitions for DECNET Phase IV protocol headers
61 */
62 union etheraddress {
63 uint8_t dne_addr[6]; /* full ethernet address */
64 struct {
65 uint8_t dne_hiord[4]; /* DECnet HIORD prefix */
66 uint8_t dne_nodeaddr[2]; /* DECnet node address */
67 } dne_remote;
68 };
69
70 typedef union etheraddress etheraddr; /* Ethernet address */
71
72 #define HIORD 0x000400aa /* high 32-bits of address (swapped) */
73
74 #define AREAMASK 0176000 /* mask for area field */
75 #define AREASHIFT 10 /* bit-offset for area field */
76 #define NODEMASK 01777 /* mask for node address field */
77
78 #define DN_MAXADDL 20 /* max size of DECnet address */
79 struct dn_naddr {
80 uint16_t a_len; /* length of address */
81 uint8_t a_addr[DN_MAXADDL]; /* address as bytes */
82 };
83
84 /*
85 * Define long and short header formats.
86 */
87 struct shorthdr
88 {
89 byte sh_flags; /* route flags */
90 word sh_dst; /* destination node address */
91 word sh_src; /* source node address */
92 byte sh_visits; /* visit count */
93 };
94
95 struct longhdr
96 {
97 byte lg_flags; /* route flags */
98 byte lg_darea; /* destination area (reserved) */
99 byte lg_dsarea; /* destination subarea (reserved) */
100 etheraddr lg_dst; /* destination id */
101 byte lg_sarea; /* source area (reserved) */
102 byte lg_ssarea; /* source subarea (reserved) */
103 etheraddr lg_src; /* source id */
104 byte lg_nextl2; /* next level 2 router (reserved) */
105 byte lg_visits; /* visit count */
106 byte lg_service; /* service class (reserved) */
107 byte lg_pt; /* protocol type (reserved) */
108 };
109
110 union routehdr
111 {
112 struct shorthdr rh_short; /* short route header */
113 struct longhdr rh_long; /* long route header */
114 };
115
116 /*
117 * Define the values of various fields in the protocol messages.
118 *
119 * 1. Data packet formats.
120 */
121 #define RMF_MASK 7 /* mask for message type */
122 #define RMF_SHORT 2 /* short message format */
123 #define RMF_LONG 6 /* long message format */
124 #ifndef RMF_RQR
125 #define RMF_RQR 010 /* request return to sender */
126 #define RMF_RTS 020 /* returning to sender */
127 #define RMF_IE 040 /* intra-ethernet packet */
128 #endif /* RMR_RQR */
129 #define RMF_FVER 0100 /* future version flag */
130 #define RMF_PAD 0200 /* pad field */
131 #define RMF_PADMASK 0177 /* pad field mask */
132
133 #define VIS_MASK 077 /* visit field mask */
134
135 /*
136 * 2. Control packet formats.
137 */
138 #define RMF_CTLMASK 017 /* mask for message type */
139 #define RMF_CTLMSG 01 /* control message indicator */
140 #define RMF_INIT 01 /* initialization message */
141 #define RMF_VER 03 /* verification message */
142 #define RMF_TEST 05 /* hello and test message */
143 #define RMF_L1ROUT 07 /* level 1 routing message */
144 #define RMF_L2ROUT 011 /* level 2 routing message */
145 #define RMF_RHELLO 013 /* router hello message */
146 #define RMF_EHELLO 015 /* endnode hello message */
147
148 #define TI_L2ROUT 01 /* level 2 router */
149 #define TI_L1ROUT 02 /* level 1 router */
150 #define TI_ENDNODE 03 /* endnode */
151 #define TI_VERIF 04 /* verification required */
152 #define TI_BLOCK 010 /* blocking requested */
153
154 #define VE_VERS 2 /* version number (2) */
155 #define VE_ECO 0 /* ECO number */
156 #define VE_UECO 0 /* user ECO number (0) */
157
158 #define P3_VERS 1 /* phase III version number (1) */
159 #define P3_ECO 3 /* ECO number (3) */
160 #define P3_UECO 0 /* user ECO number (0) */
161
162 #define II_L2ROUT 01 /* level 2 router */
163 #define II_L1ROUT 02 /* level 1 router */
164 #define II_ENDNODE 03 /* endnode */
165 #define II_VERIF 04 /* verification required */
166 #define II_NOMCAST 040 /* no multicast traffic accepted */
167 #define II_BLOCK 0100 /* blocking requested */
168 #define II_TYPEMASK 03 /* mask for node type */
169
170 #define TESTDATA 0252 /* test data bytes */
171 #define TESTLEN 1 /* length of transmitted test data */
172
173 /*
174 * Define control message formats.
175 */
176 struct initmsgIII /* phase III initialization message */
177 {
178 byte inIII_flags; /* route flags */
179 word inIII_src; /* source node address */
180 byte inIII_info; /* routing layer information */
181 word inIII_blksize; /* maximum data link block size */
182 byte inIII_vers; /* version number */
183 byte inIII_eco; /* ECO number */
184 byte inIII_ueco; /* user ECO number */
185 byte inIII_rsvd; /* reserved image field */
186 };
187
188 struct initmsg /* initialization message */
189 {
190 byte in_flags; /* route flags */
191 word in_src; /* source node address */
192 byte in_info; /* routing layer information */
193 word in_blksize; /* maximum data link block size */
194 byte in_vers; /* version number */
195 byte in_eco; /* ECO number */
196 byte in_ueco; /* user ECO number */
197 word in_hello; /* hello timer */
198 byte in_rsvd; /* reserved image field */
199 };
200
201 struct verifmsg /* verification message */
202 {
203 byte ve_flags; /* route flags */
204 word ve_src; /* source node address */
205 byte ve_fcnval; /* function value image field */
206 };
207
208 struct testmsg /* hello and test message */
209 {
210 byte te_flags; /* route flags */
211 word te_src; /* source node address */
212 byte te_data; /* test data image field */
213 };
214
215 struct l1rout /* level 1 routing message */
216 {
217 byte r1_flags; /* route flags */
218 word r1_src; /* source node address */
219 byte r1_rsvd; /* reserved field */
220 };
221
222 struct l2rout /* level 2 routing message */
223 {
224 byte r2_flags; /* route flags */
225 word r2_src; /* source node address */
226 byte r2_rsvd; /* reserved field */
227 };
228
229 struct rhellomsg /* router hello message */
230 {
231 byte rh_flags; /* route flags */
232 byte rh_vers; /* version number */
233 byte rh_eco; /* ECO number */
234 byte rh_ueco; /* user ECO number */
235 etheraddr rh_src; /* source id */
236 byte rh_info; /* routing layer information */
237 word rh_blksize; /* maximum data link block size */
238 byte rh_priority; /* router's priority */
239 byte rh_area; /* reserved */
240 word rh_hello; /* hello timer */
241 byte rh_mpd; /* reserved */
242 };
243
244 struct ehellomsg /* endnode hello message */
245 {
246 byte eh_flags; /* route flags */
247 byte eh_vers; /* version number */
248 byte eh_eco; /* ECO number */
249 byte eh_ueco; /* user ECO number */
250 etheraddr eh_src; /* source id */
251 byte eh_info; /* routing layer information */
252 word eh_blksize; /* maximum data link block size */
253 byte eh_area; /* area (reserved) */
254 byte eh_seed[8]; /* verification seed */
255 etheraddr eh_router; /* designated router */
256 word eh_hello; /* hello timer */
257 byte eh_mpd; /* (reserved) */
258 byte eh_data; /* test data image field */
259 };
260
261 union controlmsg
262 {
263 struct initmsg cm_init; /* initialization message */
264 struct verifmsg cm_ver; /* verification message */
265 struct testmsg cm_test; /* hello and test message */
266 struct l1rout cm_l1rou; /* level 1 routing message */
267 struct l2rout cm_l2rout; /* level 2 routing message */
268 struct rhellomsg cm_rhello; /* router hello message */
269 struct ehellomsg cm_ehello; /* endnode hello message */
270 };
271
272 /* Macros for decoding routing-info fields */
273 #define RI_COST(x) ((x)&0777)
274 #define RI_HOPS(x) (((x)>>10)&037)
275
276 /*
277 * NSP protocol fields and values.
278 */
279
280 #define NSP_TYPEMASK 014 /* mask to isolate type code */
281 #define NSP_SUBMASK 0160 /* mask to isolate subtype code */
282 #define NSP_SUBSHFT 4 /* shift to move subtype code */
283
284 #define MFT_DATA 0 /* data message */
285 #define MFT_ACK 04 /* acknowledgement message */
286 #define MFT_CTL 010 /* control message */
287
288 #define MFS_ILS 020 /* data or I/LS indicator */
289 #define MFS_BOM 040 /* beginning of message (data) */
290 #define MFS_MOM 0 /* middle of message (data) */
291 #define MFS_EOM 0100 /* end of message (data) */
292 #define MFS_INT 040 /* interrupt message */
293
294 #define MFS_DACK 0 /* data acknowledgement */
295 #define MFS_IACK 020 /* I/LS acknowledgement */
296 #define MFS_CACK 040 /* connect acknowledgement */
297
298 #define MFS_NOP 0 /* no operation */
299 #define MFS_CI 020 /* connect initiate */
300 #define MFS_CC 040 /* connect confirm */
301 #define MFS_DI 060 /* disconnect initiate */
302 #define MFS_DC 0100 /* disconnect confirm */
303 #define MFS_RCI 0140 /* retransmitted connect initiate */
304
305 #define SGQ_ACK 0100000 /* ack */
306 #define SGQ_NAK 0110000 /* negative ack */
307 #define SGQ_OACK 0120000 /* other channel ack */
308 #define SGQ_ONAK 0130000 /* other channel negative ack */
309 #define SGQ_MASK 07777 /* mask to isolate seq # */
310 #define SGQ_OTHER 020000 /* other channel qualifier */
311 #define SGQ_DELAY 010000 /* ack delay flag */
312
313 #define SGQ_EOM 0100000 /* pseudo flag for end-of-message */
314
315 #define LSM_MASK 03 /* mask for modifier field */
316 #define LSM_NOCHANGE 0 /* no change */
317 #define LSM_DONOTSEND 1 /* do not send data */
318 #define LSM_SEND 2 /* send data */
319
320 #define LSI_MASK 014 /* mask for interpretation field */
321 #define LSI_DATA 0 /* data segment or message count */
322 #define LSI_INTR 4 /* interrupt request count */
323 #define LSI_INTM 0377 /* funny marker for int. message */
324
325 #define COS_MASK 014 /* mask for flow control field */
326 #define COS_NONE 0 /* no flow control */
327 #define COS_SEGMENT 04 /* segment flow control */
328 #define COS_MESSAGE 010 /* message flow control */
329 #define COS_DEFAULT 1 /* default value for field */
330
331 #define COI_MASK 3 /* mask for version field */
332 #define COI_32 0 /* version 3.2 */
333 #define COI_31 1 /* version 3.1 */
334 #define COI_40 2 /* version 4.0 */
335 #define COI_41 3 /* version 4.1 */
336
337 #define MNU_MASK 140 /* mask for session control version */
338 #define MNU_10 000 /* session V1.0 */
339 #define MNU_20 040 /* session V2.0 */
340 #define MNU_ACCESS 1 /* access control present */
341 #define MNU_USRDATA 2 /* user data field present */
342 #define MNU_INVKPROXY 4 /* invoke proxy field present */
343 #define MNU_UICPROXY 8 /* use uic-based proxy */
344
345 #define DC_NORESOURCES 1 /* no resource reason code */
346 #define DC_NOLINK 41 /* no link terminate reason code */
347 #define DC_COMPLETE 42 /* disconnect complete reason code */
348
349 #define DI_NOERROR 0 /* user disconnect */
350 #define DI_SHUT 3 /* node is shutting down */
351 #define DI_NOUSER 4 /* destination end user does not exist */
352 #define DI_INVDEST 5 /* invalid end user destination */
353 #define DI_REMRESRC 6 /* insufficient remote resources */
354 #define DI_TPA 8 /* third party abort */
355 #define DI_PROTOCOL 7 /* protocol error discovered */
356 #define DI_ABORT 9 /* user abort */
357 #define DI_LOCALRESRC 32 /* insufficient local resources */
358 #define DI_REMUSERRESRC 33 /* insufficient remote user resources */
359 #define DI_BADACCESS 34 /* bad access control information */
360 #define DI_BADACCNT 36 /* bad ACCOUNT information */
361 #define DI_CONNECTABORT 38 /* connect request cancelled */
362 #define DI_TIMEDOUT 38 /* remote node or user crashed */
363 #define DI_UNREACHABLE 39 /* local timers expired due to ... */
364 #define DI_BADIMAGE 43 /* bad image data in connect */
365 #define DI_SERVMISMATCH 54 /* cryptographic service mismatch */
366
367 #define UC_OBJREJECT 0 /* object rejected connect */
368 #define UC_USERDISCONNECT 0 /* user disconnect */
369 #define UC_RESOURCES 1 /* insufficient resources (local or remote) */
370 #define UC_NOSUCHNODE 2 /* unrecognized node name */
371 #define UC_REMOTESHUT 3 /* remote node shutting down */
372 #define UC_NOSUCHOBJ 4 /* unrecognized object */
373 #define UC_INVOBJFORMAT 5 /* invalid object name format */
374 #define UC_OBJTOOBUSY 6 /* object too busy */
375 #define UC_NETWORKABORT 8 /* network abort */
376 #define UC_USERABORT 9 /* user abort */
377 #define UC_INVNODEFORMAT 10 /* invalid node name format */
378 #define UC_LOCALSHUT 11 /* local node shutting down */
379 #define UC_ACCESSREJECT 34 /* invalid access control information */
380 #define UC_NORESPONSE 38 /* no response from object */
381 #define UC_UNREACHABLE 39 /* node unreachable */
382
383 /*
384 * NSP message formats.
385 */
386 struct nsphdr /* general nsp header */
387 {
388 byte nh_flags; /* message flags */
389 word nh_dst; /* destination link address */
390 word nh_src; /* source link address */
391 };
392
393 struct seghdr /* data segment header */
394 {
395 byte sh_flags; /* message flags */
396 word sh_dst; /* destination link address */
397 word sh_src; /* source link address */
398 word sh_seq[3]; /* sequence numbers */
399 };
400
401 struct minseghdr /* minimum data segment header */
402 {
403 byte ms_flags; /* message flags */
404 word ms_dst; /* destination link address */
405 word ms_src; /* source link address */
406 word ms_seq; /* sequence number */
407 };
408
409 struct lsmsg /* link service message (after hdr) */
410 {
411 byte ls_lsflags; /* link service flags */
412 byte ls_fcval; /* flow control value */
413 };
414
415 struct ackmsg /* acknowledgement message */
416 {
417 byte ak_flags; /* message flags */
418 word ak_dst; /* destination link address */
419 word ak_src; /* source link address */
420 word ak_acknum[2]; /* acknowledgement numbers */
421 };
422
423 struct minackmsg /* minimum acknowledgement message */
424 {
425 byte mk_flags; /* message flags */
426 word mk_dst; /* destination link address */
427 word mk_src; /* source link address */
428 word mk_acknum; /* acknowledgement number */
429 };
430
431 struct ciackmsg /* connect acknowledgement message */
432 {
433 byte ck_flags; /* message flags */
434 word ck_dst; /* destination link address */
435 };
436
437 struct cimsg /* connect initiate message */
438 {
439 byte ci_flags; /* message flags */
440 word ci_dst; /* destination link address (0) */
441 word ci_src; /* source link address */
442 byte ci_services; /* requested services */
443 byte ci_info; /* information */
444 word ci_segsize; /* maximum segment size */
445 };
446
447 struct ccmsg /* connect confirm message */
448 {
449 byte cc_flags; /* message flags */
450 word cc_dst; /* destination link address */
451 word cc_src; /* source link address */
452 byte cc_services; /* requested services */
453 byte cc_info; /* information */
454 word cc_segsize; /* maximum segment size */
455 byte cc_optlen; /* optional data length */
456 };
457
458 struct cnmsg /* generic connect message */
459 {
460 byte cn_flags; /* message flags */
461 word cn_dst; /* destination link address */
462 word cn_src; /* source link address */
463 byte cn_services; /* requested services */
464 byte cn_info; /* information */
465 word cn_segsize; /* maximum segment size */
466 };
467
468 struct dimsg /* disconnect initiate message */
469 {
470 byte di_flags; /* message flags */
471 word di_dst; /* destination link address */
472 word di_src; /* source link address */
473 word di_reason; /* reason code */
474 byte di_optlen; /* optional data length */
475 };
476
477 struct dcmsg /* disconnect confirm message */
478 {
479 byte dc_flags; /* message flags */
480 word dc_dst; /* destination link address */
481 word dc_src; /* source link address */
482 word dc_reason; /* reason code */
483 };
484
485 /* Forwards */
486 static int print_decnet_ctlmsg(netdissect_options *, const union routehdr *, u_int, u_int);
487 static void print_t_info(netdissect_options *, int);
488 static int print_l1_routes(netdissect_options *, const char *, u_int);
489 static int print_l2_routes(netdissect_options *, const char *, u_int);
490 static void print_i_info(netdissect_options *, int);
491 static int print_elist(const char *, u_int);
492 static int print_nsp(netdissect_options *, const u_char *, u_int);
493 static void print_reason(netdissect_options *, int);
494
495 #ifndef HAVE_NETDNET_DNETDB_H_DNET_HTOA
496 extern char *dnet_htoa(struct dn_naddr *);
497 #endif
498
499 void
500 decnet_print(netdissect_options *ndo,
501 register const u_char *ap, register u_int length,
502 register u_int caplen)
503 {
504 register const union routehdr *rhp;
505 register int mflags;
506 int dst, src, hops;
507 u_int nsplen, pktlen;
508 const u_char *nspp;
509
510 if (length < sizeof(struct shorthdr)) {
511 ND_PRINT((ndo, "%s", tstr));
512 return;
513 }
514
515 ND_TCHECK2(*ap, sizeof(short));
516 pktlen = EXTRACT_LE_16BITS(ap);
517 if (pktlen < sizeof(struct shorthdr)) {
518 ND_PRINT((ndo, "%s", tstr));
519 return;
520 }
521 if (pktlen > length) {
522 ND_PRINT((ndo, "%s", tstr));
523 return;
524 }
525 length = pktlen;
526
527 rhp = (const union routehdr *)&(ap[sizeof(short)]);
528 ND_TCHECK(rhp->rh_short.sh_flags);
529 mflags = EXTRACT_LE_8BITS(rhp->rh_short.sh_flags);
530
531 if (mflags & RMF_PAD) {
532 /* pad bytes of some sort in front of message */
533 u_int padlen = mflags & RMF_PADMASK;
534 if (ndo->ndo_vflag)
535 ND_PRINT((ndo, "[pad:%d] ", padlen));
536 if (length < padlen + 2) {
537 ND_PRINT((ndo, "%s", tstr));
538 return;
539 }
540 ND_TCHECK2(ap[sizeof(short)], padlen);
541 ap += padlen;
542 length -= padlen;
543 caplen -= padlen;
544 rhp = (const union routehdr *)&(ap[sizeof(short)]);
545 mflags = EXTRACT_LE_8BITS(rhp->rh_short.sh_flags);
546 }
547
548 if (mflags & RMF_FVER) {
549 ND_PRINT((ndo, "future-version-decnet"));
550 ND_DEFAULTPRINT(ap, min(length, caplen));
551 return;
552 }
553
554 /* is it a control message? */
555 if (mflags & RMF_CTLMSG) {
556 if (!print_decnet_ctlmsg(ndo, rhp, length, caplen))
557 goto trunc;
558 return;
559 }
560
561 switch (mflags & RMF_MASK) {
562 case RMF_LONG:
563 if (length < sizeof(struct longhdr)) {
564 ND_PRINT((ndo, "%s", tstr));
565 return;
566 }
567 ND_TCHECK(rhp->rh_long);
568 dst =
569 EXTRACT_LE_16BITS(rhp->rh_long.lg_dst.dne_remote.dne_nodeaddr);
570 src =
571 EXTRACT_LE_16BITS(rhp->rh_long.lg_src.dne_remote.dne_nodeaddr);
572 hops = EXTRACT_LE_8BITS(rhp->rh_long.lg_visits);
573 nspp = &(ap[sizeof(short) + sizeof(struct longhdr)]);
574 nsplen = length - sizeof(struct longhdr);
575 break;
576 case RMF_SHORT:
577 ND_TCHECK(rhp->rh_short);
578 dst = EXTRACT_LE_16BITS(rhp->rh_short.sh_dst);
579 src = EXTRACT_LE_16BITS(rhp->rh_short.sh_src);
580 hops = (EXTRACT_LE_8BITS(rhp->rh_short.sh_visits) & VIS_MASK)+1;
581 nspp = &(ap[sizeof(short) + sizeof(struct shorthdr)]);
582 nsplen = length - sizeof(struct shorthdr);
583 break;
584 default:
585 ND_PRINT((ndo, "unknown message flags under mask"));
586 ND_DEFAULTPRINT((const u_char *)ap, min(length, caplen));
587 return;
588 }
589
590 ND_PRINT((ndo, "%s > %s %d ",
591 dnaddr_string(ndo, src), dnaddr_string(ndo, dst), pktlen));
592 if (ndo->ndo_vflag) {
593 if (mflags & RMF_RQR)
594 ND_PRINT((ndo, "RQR "));
595 if (mflags & RMF_RTS)
596 ND_PRINT((ndo, "RTS "));
597 if (mflags & RMF_IE)
598 ND_PRINT((ndo, "IE "));
599 ND_PRINT((ndo, "%d hops ", hops));
600 }
601
602 if (!print_nsp(ndo, nspp, nsplen))
603 goto trunc;
604 return;
605
606 trunc:
607 ND_PRINT((ndo, "%s", tstr));
608 return;
609 }
610
611 static int
612 print_decnet_ctlmsg(netdissect_options *ndo,
613 register const union routehdr *rhp, u_int length,
614 u_int caplen)
615 {
616 int mflags = EXTRACT_LE_8BITS(rhp->rh_short.sh_flags);
617 register const union controlmsg *cmp = (const union controlmsg *)rhp;
618 int src, dst, info, blksize, eco, ueco, hello, other, vers;
619 etheraddr srcea, rtea;
620 int priority;
621 const char *rhpx = (const char *)rhp;
622 int ret;
623
624 switch (mflags & RMF_CTLMASK) {
625 case RMF_INIT:
626 ND_PRINT((ndo, "init "));
627 if (length < sizeof(struct initmsg))
628 goto trunc;
629 ND_TCHECK(cmp->cm_init);
630 src = EXTRACT_LE_16BITS(cmp->cm_init.in_src);
631 info = EXTRACT_LE_8BITS(cmp->cm_init.in_info);
632 blksize = EXTRACT_LE_16BITS(cmp->cm_init.in_blksize);
633 vers = EXTRACT_LE_8BITS(cmp->cm_init.in_vers);
634 eco = EXTRACT_LE_8BITS(cmp->cm_init.in_eco);
635 ueco = EXTRACT_LE_8BITS(cmp->cm_init.in_ueco);
636 hello = EXTRACT_LE_16BITS(cmp->cm_init.in_hello);
637 print_t_info(ndo, info);
638 ND_PRINT((ndo,
639 "src %sblksize %d vers %d eco %d ueco %d hello %d",
640 dnaddr_string(ndo, src), blksize, vers, eco, ueco,
641 hello));
642 ret = 1;
643 break;
644 case RMF_VER:
645 ND_PRINT((ndo, "verification "));
646 if (length < sizeof(struct verifmsg))
647 goto trunc;
648 ND_TCHECK(cmp->cm_ver);
649 src = EXTRACT_LE_16BITS(cmp->cm_ver.ve_src);
650 other = EXTRACT_LE_8BITS(cmp->cm_ver.ve_fcnval);
651 ND_PRINT((ndo, "src %s fcnval %o", dnaddr_string(ndo, src), other));
652 ret = 1;
653 break;
654 case RMF_TEST:
655 ND_PRINT((ndo, "test "));
656 if (length < sizeof(struct testmsg))
657 goto trunc;
658 ND_TCHECK(cmp->cm_test);
659 src = EXTRACT_LE_16BITS(cmp->cm_test.te_src);
660 other = EXTRACT_LE_8BITS(cmp->cm_test.te_data);
661 ND_PRINT((ndo, "src %s data %o", dnaddr_string(ndo, src), other));
662 ret = 1;
663 break;
664 case RMF_L1ROUT:
665 ND_PRINT((ndo, "lev-1-routing "));
666 if (length < sizeof(struct l1rout))
667 goto trunc;
668 ND_TCHECK(cmp->cm_l1rou);
669 src = EXTRACT_LE_16BITS(cmp->cm_l1rou.r1_src);
670 ND_PRINT((ndo, "src %s ", dnaddr_string(ndo, src)));
671 ret = print_l1_routes(ndo, &(rhpx[sizeof(struct l1rout)]),
672 length - sizeof(struct l1rout));
673 break;
674 case RMF_L2ROUT:
675 ND_PRINT((ndo, "lev-2-routing "));
676 if (length < sizeof(struct l2rout))
677 goto trunc;
678 ND_TCHECK(cmp->cm_l2rout);
679 src = EXTRACT_LE_16BITS(cmp->cm_l2rout.r2_src);
680 ND_PRINT((ndo, "src %s ", dnaddr_string(ndo, src)));
681 ret = print_l2_routes(ndo, &(rhpx[sizeof(struct l2rout)]),
682 length - sizeof(struct l2rout));
683 break;
684 case RMF_RHELLO:
685 ND_PRINT((ndo, "router-hello "));
686 if (length < sizeof(struct rhellomsg))
687 goto trunc;
688 ND_TCHECK(cmp->cm_rhello);
689 vers = EXTRACT_LE_8BITS(cmp->cm_rhello.rh_vers);
690 eco = EXTRACT_LE_8BITS(cmp->cm_rhello.rh_eco);
691 ueco = EXTRACT_LE_8BITS(cmp->cm_rhello.rh_ueco);
692 memcpy((char *)&srcea, (const char *)&(cmp->cm_rhello.rh_src),
693 sizeof(srcea));
694 src = EXTRACT_LE_16BITS(srcea.dne_remote.dne_nodeaddr);
695 info = EXTRACT_LE_8BITS(cmp->cm_rhello.rh_info);
696 blksize = EXTRACT_LE_16BITS(cmp->cm_rhello.rh_blksize);
697 priority = EXTRACT_LE_8BITS(cmp->cm_rhello.rh_priority);
698 hello = EXTRACT_LE_16BITS(cmp->cm_rhello.rh_hello);
699 print_i_info(ndo, info);
700 ND_PRINT((ndo,
701 "vers %d eco %d ueco %d src %s blksize %d pri %d hello %d",
702 vers, eco, ueco, dnaddr_string(ndo, src),
703 blksize, priority, hello));
704 ret = print_elist(&(rhpx[sizeof(struct rhellomsg)]),
705 length - sizeof(struct rhellomsg));
706 break;
707 case RMF_EHELLO:
708 ND_PRINT((ndo, "endnode-hello "));
709 if (length < sizeof(struct ehellomsg))
710 goto trunc;
711 ND_TCHECK(cmp->cm_ehello);
712 vers = EXTRACT_LE_8BITS(cmp->cm_ehello.eh_vers);
713 eco = EXTRACT_LE_8BITS(cmp->cm_ehello.eh_eco);
714 ueco = EXTRACT_LE_8BITS(cmp->cm_ehello.eh_ueco);
715 memcpy((char *)&srcea, (const char *)&(cmp->cm_ehello.eh_src),
716 sizeof(srcea));
717 src = EXTRACT_LE_16BITS(srcea.dne_remote.dne_nodeaddr);
718 info = EXTRACT_LE_8BITS(cmp->cm_ehello.eh_info);
719 blksize = EXTRACT_LE_16BITS(cmp->cm_ehello.eh_blksize);
720 /*seed*/
721 memcpy((char *)&rtea, (const char *)&(cmp->cm_ehello.eh_router),
722 sizeof(rtea));
723 dst = EXTRACT_LE_16BITS(rtea.dne_remote.dne_nodeaddr);
724 hello = EXTRACT_LE_16BITS(cmp->cm_ehello.eh_hello);
725 other = EXTRACT_LE_8BITS(cmp->cm_ehello.eh_data);
726 print_i_info(ndo, info);
727 ND_PRINT((ndo,
728 "vers %d eco %d ueco %d src %s blksize %d rtr %s hello %d data %o",
729 vers, eco, ueco, dnaddr_string(ndo, src),
730 blksize, dnaddr_string(ndo, dst), hello, other));
731 ret = 1;
732 break;
733
734 default:
735 ND_PRINT((ndo, "unknown control message"));
736 ND_DEFAULTPRINT((const u_char *)rhp, min(length, caplen));
737 ret = 1;
738 break;
739 }
740 return (ret);
741
742 trunc:
743 return (0);
744 }
745
746 static void
747 print_t_info(netdissect_options *ndo,
748 int info)
749 {
750 int ntype = info & 3;
751 switch (ntype) {
752 case 0: ND_PRINT((ndo, "reserved-ntype? ")); break;
753 case TI_L2ROUT: ND_PRINT((ndo, "l2rout ")); break;
754 case TI_L1ROUT: ND_PRINT((ndo, "l1rout ")); break;
755 case TI_ENDNODE: ND_PRINT((ndo, "endnode ")); break;
756 }
757 if (info & TI_VERIF)
758 ND_PRINT((ndo, "verif "));
759 if (info & TI_BLOCK)
760 ND_PRINT((ndo, "blo "));
761 }
762
763 static int
764 print_l1_routes(netdissect_options *ndo,
765 const char *rp, u_int len)
766 {
767 int count;
768 int id;
769 int info;
770
771 /* The last short is a checksum */
772 while (len > (3 * sizeof(short))) {
773 ND_TCHECK2(*rp, 3 * sizeof(short));
774 count = EXTRACT_LE_16BITS(rp);
775 if (count > 1024)
776 return (1); /* seems to be bogus from here on */
777 rp += sizeof(short);
778 len -= sizeof(short);
779 id = EXTRACT_LE_16BITS(rp);
780 rp += sizeof(short);
781 len -= sizeof(short);
782 info = EXTRACT_LE_16BITS(rp);
783 rp += sizeof(short);
784 len -= sizeof(short);
785 ND_PRINT((ndo, "{ids %d-%d cost %d hops %d} ", id, id + count,
786 RI_COST(info), RI_HOPS(info)));
787 }
788 return (1);
789
790 trunc:
791 return (0);
792 }
793
794 static int
795 print_l2_routes(netdissect_options *ndo,
796 const char *rp, u_int len)
797 {
798 int count;
799 int area;
800 int info;
801
802 /* The last short is a checksum */
803 while (len > (3 * sizeof(short))) {
804 ND_TCHECK2(*rp, 3 * sizeof(short));
805 count = EXTRACT_LE_16BITS(rp);
806 if (count > 1024)
807 return (1); /* seems to be bogus from here on */
808 rp += sizeof(short);
809 len -= sizeof(short);
810 area = EXTRACT_LE_16BITS(rp);
811 rp += sizeof(short);
812 len -= sizeof(short);
813 info = EXTRACT_LE_16BITS(rp);
814 rp += sizeof(short);
815 len -= sizeof(short);
816 ND_PRINT((ndo, "{areas %d-%d cost %d hops %d} ", area, area + count,
817 RI_COST(info), RI_HOPS(info)));
818 }
819 return (1);
820
821 trunc:
822 return (0);
823 }
824
825 static void
826 print_i_info(netdissect_options *ndo,
827 int info)
828 {
829 int ntype = info & II_TYPEMASK;
830 switch (ntype) {
831 case 0: ND_PRINT((ndo, "reserved-ntype? ")); break;
832 case II_L2ROUT: ND_PRINT((ndo, "l2rout ")); break;
833 case II_L1ROUT: ND_PRINT((ndo, "l1rout ")); break;
834 case II_ENDNODE: ND_PRINT((ndo, "endnode ")); break;
835 }
836 if (info & II_VERIF)
837 ND_PRINT((ndo, "verif "));
838 if (info & II_NOMCAST)
839 ND_PRINT((ndo, "nomcast "));
840 if (info & II_BLOCK)
841 ND_PRINT((ndo, "blo "));
842 }
843
844 static int
845 print_elist(const char *elp _U_, u_int len _U_)
846 {
847 /* Not enough examples available for me to debug this */
848 return (1);
849 }
850
851 static int
852 print_nsp(netdissect_options *ndo,
853 const u_char *nspp, u_int nsplen)
854 {
855 const struct nsphdr *nsphp = (const struct nsphdr *)nspp;
856 int dst, src, flags;
857
858 if (nsplen < sizeof(struct nsphdr))
859 goto trunc;
860 ND_TCHECK(*nsphp);
861 flags = EXTRACT_LE_8BITS(nsphp->nh_flags);
862 dst = EXTRACT_LE_16BITS(nsphp->nh_dst);
863 src = EXTRACT_LE_16BITS(nsphp->nh_src);
864
865 switch (flags & NSP_TYPEMASK) {
866 case MFT_DATA:
867 switch (flags & NSP_SUBMASK) {
868 case MFS_BOM:
869 case MFS_MOM:
870 case MFS_EOM:
871 case MFS_BOM+MFS_EOM:
872 ND_PRINT((ndo, "data %d>%d ", src, dst));
873 {
874 const struct seghdr *shp = (const struct seghdr *)nspp;
875 int ack;
876 u_int data_off = sizeof(struct minseghdr);
877
878 if (nsplen < data_off)
879 goto trunc;
880 ND_TCHECK(shp->sh_seq[0]);
881 ack = EXTRACT_LE_16BITS(shp->sh_seq[0]);
882 if (ack & SGQ_ACK) { /* acknum field */
883 if ((ack & SGQ_NAK) == SGQ_NAK)
884 ND_PRINT((ndo, "nak %d ", ack & SGQ_MASK));
885 else
886 ND_PRINT((ndo, "ack %d ", ack & SGQ_MASK));
887 data_off += sizeof(short);
888 if (nsplen < data_off)
889 goto trunc;
890 ND_TCHECK(shp->sh_seq[1]);
891 ack = EXTRACT_LE_16BITS(shp->sh_seq[1]);
892 if (ack & SGQ_OACK) { /* ackoth field */
893 if ((ack & SGQ_ONAK) == SGQ_ONAK)
894 ND_PRINT((ndo, "onak %d ", ack & SGQ_MASK));
895 else
896 ND_PRINT((ndo, "oack %d ", ack & SGQ_MASK));
897 data_off += sizeof(short);
898 if (nsplen < data_off)
899 goto trunc;
900 ND_TCHECK(shp->sh_seq[2]);
901 ack = EXTRACT_LE_16BITS(shp->sh_seq[2]);
902 }
903 }
904 ND_PRINT((ndo, "seg %d ", ack & SGQ_MASK));
905 }
906 break;
907 case MFS_ILS+MFS_INT:
908 ND_PRINT((ndo, "intr "));
909 {
910 const struct seghdr *shp = (const struct seghdr *)nspp;
911 int ack;
912 u_int data_off = sizeof(struct minseghdr);
913
914 if (nsplen < data_off)
915 goto trunc;
916 ND_TCHECK(shp->sh_seq[0]);
917 ack = EXTRACT_LE_16BITS(shp->sh_seq[0]);
918 if (ack & SGQ_ACK) { /* acknum field */
919 if ((ack & SGQ_NAK) == SGQ_NAK)
920 ND_PRINT((ndo, "nak %d ", ack & SGQ_MASK));
921 else
922 ND_PRINT((ndo, "ack %d ", ack & SGQ_MASK));
923 data_off += sizeof(short);
924 if (nsplen < data_off)
925 goto trunc;
926 ND_TCHECK(shp->sh_seq[1]);
927 ack = EXTRACT_LE_16BITS(shp->sh_seq[1]);
928 if (ack & SGQ_OACK) { /* ackdat field */
929 if ((ack & SGQ_ONAK) == SGQ_ONAK)
930 ND_PRINT((ndo, "nakdat %d ", ack & SGQ_MASK));
931 else
932 ND_PRINT((ndo, "ackdat %d ", ack & SGQ_MASK));
933 data_off += sizeof(short);
934 if (nsplen < data_off)
935 goto trunc;
936 ND_TCHECK(shp->sh_seq[2]);
937 ack = EXTRACT_LE_16BITS(shp->sh_seq[2]);
938 }
939 }
940 ND_PRINT((ndo, "seg %d ", ack & SGQ_MASK));
941 }
942 break;
943 case MFS_ILS:
944 ND_PRINT((ndo, "link-service %d>%d ", src, dst));
945 {
946 const struct seghdr *shp = (const struct seghdr *)nspp;
947 const struct lsmsg *lsmp =
948 (const struct lsmsg *)&(nspp[sizeof(struct seghdr)]);
949 int ack;
950 int lsflags, fcval;
951
952 if (nsplen < sizeof(struct seghdr) + sizeof(struct lsmsg))
953 goto trunc;
954 ND_TCHECK(shp->sh_seq[0]);
955 ack = EXTRACT_LE_16BITS(shp->sh_seq[0]);
956 if (ack & SGQ_ACK) { /* acknum field */
957 if ((ack & SGQ_NAK) == SGQ_NAK)
958 ND_PRINT((ndo, "nak %d ", ack & SGQ_MASK));
959 else
960 ND_PRINT((ndo, "ack %d ", ack & SGQ_MASK));
961 ND_TCHECK(shp->sh_seq[1]);
962 ack = EXTRACT_LE_16BITS(shp->sh_seq[1]);
963 if (ack & SGQ_OACK) { /* ackdat field */
964 if ((ack & SGQ_ONAK) == SGQ_ONAK)
965 ND_PRINT((ndo, "nakdat %d ", ack & SGQ_MASK));
966 else
967 ND_PRINT((ndo, "ackdat %d ", ack & SGQ_MASK));
968 ND_TCHECK(shp->sh_seq[2]);
969 ack = EXTRACT_LE_16BITS(shp->sh_seq[2]);
970 }
971 }
972 ND_PRINT((ndo, "seg %d ", ack & SGQ_MASK));
973 ND_TCHECK(*lsmp);
974 lsflags = EXTRACT_LE_8BITS(lsmp->ls_lsflags);
975 fcval = EXTRACT_LE_8BITS(lsmp->ls_fcval);
976 switch (lsflags & LSI_MASK) {
977 case LSI_DATA:
978 ND_PRINT((ndo, "dat seg count %d ", fcval));
979 switch (lsflags & LSM_MASK) {
980 case LSM_NOCHANGE:
981 break;
982 case LSM_DONOTSEND:
983 ND_PRINT((ndo, "donotsend-data "));
984 break;
985 case LSM_SEND:
986 ND_PRINT((ndo, "send-data "));
987 break;
988 default:
989 ND_PRINT((ndo, "reserved-fcmod? %x", lsflags));
990 break;
991 }
992 break;
993 case LSI_INTR:
994 ND_PRINT((ndo, "intr req count %d ", fcval));
995 break;
996 default:
997 ND_PRINT((ndo, "reserved-fcval-int? %x", lsflags));
998 break;
999 }
1000 }
1001 break;
1002 default:
1003 ND_PRINT((ndo, "reserved-subtype? %x %d > %d", flags, src, dst));
1004 break;
1005 }
1006 break;
1007 case MFT_ACK:
1008 switch (flags & NSP_SUBMASK) {
1009 case MFS_DACK:
1010 ND_PRINT((ndo, "data-ack %d>%d ", src, dst));
1011 {
1012 const struct ackmsg *amp = (const struct ackmsg *)nspp;
1013 int ack;
1014
1015 if (nsplen < sizeof(struct ackmsg))
1016 goto trunc;
1017 ND_TCHECK(*amp);
1018 ack = EXTRACT_LE_16BITS(amp->ak_acknum[0]);
1019 if (ack & SGQ_ACK) { /* acknum field */
1020 if ((ack & SGQ_NAK) == SGQ_NAK)
1021 ND_PRINT((ndo, "nak %d ", ack & SGQ_MASK));
1022 else
1023 ND_PRINT((ndo, "ack %d ", ack & SGQ_MASK));
1024 ack = EXTRACT_LE_16BITS(amp->ak_acknum[1]);
1025 if (ack & SGQ_OACK) { /* ackoth field */
1026 if ((ack & SGQ_ONAK) == SGQ_ONAK)
1027 ND_PRINT((ndo, "onak %d ", ack & SGQ_MASK));
1028 else
1029 ND_PRINT((ndo, "oack %d ", ack & SGQ_MASK));
1030 }
1031 }
1032 }
1033 break;
1034 case MFS_IACK:
1035 ND_PRINT((ndo, "ils-ack %d>%d ", src, dst));
1036 {
1037 const struct ackmsg *amp = (const struct ackmsg *)nspp;
1038 int ack;
1039
1040 if (nsplen < sizeof(struct ackmsg))
1041 goto trunc;
1042 ND_TCHECK(*amp);
1043 ack = EXTRACT_LE_16BITS(amp->ak_acknum[0]);
1044 if (ack & SGQ_ACK) { /* acknum field */
1045 if ((ack & SGQ_NAK) == SGQ_NAK)
1046 ND_PRINT((ndo, "nak %d ", ack & SGQ_MASK));
1047 else
1048 ND_PRINT((ndo, "ack %d ", ack & SGQ_MASK));
1049 ND_TCHECK(amp->ak_acknum[1]);
1050 ack = EXTRACT_LE_16BITS(amp->ak_acknum[1]);
1051 if (ack & SGQ_OACK) { /* ackdat field */
1052 if ((ack & SGQ_ONAK) == SGQ_ONAK)
1053 ND_PRINT((ndo, "nakdat %d ", ack & SGQ_MASK));
1054 else
1055 ND_PRINT((ndo, "ackdat %d ", ack & SGQ_MASK));
1056 }
1057 }
1058 }
1059 break;
1060 case MFS_CACK:
1061 ND_PRINT((ndo, "conn-ack %d", dst));
1062 break;
1063 default:
1064 ND_PRINT((ndo, "reserved-acktype? %x %d > %d", flags, src, dst));
1065 break;
1066 }
1067 break;
1068 case MFT_CTL:
1069 switch (flags & NSP_SUBMASK) {
1070 case MFS_CI:
1071 case MFS_RCI:
1072 if ((flags & NSP_SUBMASK) == MFS_CI)
1073 ND_PRINT((ndo, "conn-initiate "));
1074 else
1075 ND_PRINT((ndo, "retrans-conn-initiate "));
1076 ND_PRINT((ndo, "%d>%d ", src, dst));
1077 {
1078 const struct cimsg *cimp = (const struct cimsg *)nspp;
1079 int services, info, segsize;
1080
1081 if (nsplen < sizeof(struct cimsg))
1082 goto trunc;
1083 ND_TCHECK(*cimp);
1084 services = EXTRACT_LE_8BITS(cimp->ci_services);
1085 info = EXTRACT_LE_8BITS(cimp->ci_info);
1086 segsize = EXTRACT_LE_16BITS(cimp->ci_segsize);
1087
1088 switch (services & COS_MASK) {
1089 case COS_NONE:
1090 break;
1091 case COS_SEGMENT:
1092 ND_PRINT((ndo, "seg "));
1093 break;
1094 case COS_MESSAGE:
1095 ND_PRINT((ndo, "msg "));
1096 break;
1097 }
1098 switch (info & COI_MASK) {
1099 case COI_32:
1100 ND_PRINT((ndo, "ver 3.2 "));
1101 break;
1102 case COI_31:
1103 ND_PRINT((ndo, "ver 3.1 "));
1104 break;
1105 case COI_40:
1106 ND_PRINT((ndo, "ver 4.0 "));
1107 break;
1108 case COI_41:
1109 ND_PRINT((ndo, "ver 4.1 "));
1110 break;
1111 }
1112 ND_PRINT((ndo, "segsize %d ", segsize));
1113 }
1114 break;
1115 case MFS_CC:
1116 ND_PRINT((ndo, "conn-confirm %d>%d ", src, dst));
1117 {
1118 const struct ccmsg *ccmp = (const struct ccmsg *)nspp;
1119 int services, info;
1120 u_int segsize, optlen;
1121
1122 if (nsplen < sizeof(struct ccmsg))
1123 goto trunc;
1124 ND_TCHECK(*ccmp);
1125 services = EXTRACT_LE_8BITS(ccmp->cc_services);
1126 info = EXTRACT_LE_8BITS(ccmp->cc_info);
1127 segsize = EXTRACT_LE_16BITS(ccmp->cc_segsize);
1128 optlen = EXTRACT_LE_8BITS(ccmp->cc_optlen);
1129
1130 switch (services & COS_MASK) {
1131 case COS_NONE:
1132 break;
1133 case COS_SEGMENT:
1134 ND_PRINT((ndo, "seg "));
1135 break;
1136 case COS_MESSAGE:
1137 ND_PRINT((ndo, "msg "));
1138 break;
1139 }
1140 switch (info & COI_MASK) {
1141 case COI_32:
1142 ND_PRINT((ndo, "ver 3.2 "));
1143 break;
1144 case COI_31:
1145 ND_PRINT((ndo, "ver 3.1 "));
1146 break;
1147 case COI_40:
1148 ND_PRINT((ndo, "ver 4.0 "));
1149 break;
1150 case COI_41:
1151 ND_PRINT((ndo, "ver 4.1 "));
1152 break;
1153 }
1154 ND_PRINT((ndo, "segsize %d ", segsize));
1155 if (optlen) {
1156 ND_PRINT((ndo, "optlen %d ", optlen));
1157 }
1158 }
1159 break;
1160 case MFS_DI:
1161 ND_PRINT((ndo, "disconn-initiate %d>%d ", src, dst));
1162 {
1163 const struct dimsg *dimp = (const struct dimsg *)nspp;
1164 int reason;
1165 u_int optlen;
1166
1167 if (nsplen < sizeof(struct dimsg))
1168 goto trunc;
1169 ND_TCHECK(*dimp);
1170 reason = EXTRACT_LE_16BITS(dimp->di_reason);
1171 optlen = EXTRACT_LE_8BITS(dimp->di_optlen);
1172
1173 print_reason(ndo, reason);
1174 if (optlen) {
1175 ND_PRINT((ndo, "optlen %d ", optlen));
1176 }
1177 }
1178 break;
1179 case MFS_DC:
1180 ND_PRINT((ndo, "disconn-confirm %d>%d ", src, dst));
1181 {
1182 const struct dcmsg *dcmp = (const struct dcmsg *)nspp;
1183 int reason;
1184
1185 ND_TCHECK(*dcmp);
1186 reason = EXTRACT_LE_16BITS(dcmp->dc_reason);
1187
1188 print_reason(ndo, reason);
1189 }
1190 break;
1191 default:
1192 ND_PRINT((ndo, "reserved-ctltype? %x %d > %d", flags, src, dst));
1193 break;
1194 }
1195 break;
1196 default:
1197 ND_PRINT((ndo, "reserved-type? %x %d > %d", flags, src, dst));
1198 break;
1199 }
1200 return (1);
1201
1202 trunc:
1203 return (0);
1204 }
1205
1206 static const struct tok reason2str[] = {
1207 { UC_OBJREJECT, "object rejected connect" },
1208 { UC_RESOURCES, "insufficient resources" },
1209 { UC_NOSUCHNODE, "unrecognized node name" },
1210 { DI_SHUT, "node is shutting down" },
1211 { UC_NOSUCHOBJ, "unrecognized object" },
1212 { UC_INVOBJFORMAT, "invalid object name format" },
1213 { UC_OBJTOOBUSY, "object too busy" },
1214 { DI_PROTOCOL, "protocol error discovered" },
1215 { DI_TPA, "third party abort" },
1216 { UC_USERABORT, "user abort" },
1217 { UC_INVNODEFORMAT, "invalid node name format" },
1218 { UC_LOCALSHUT, "local node shutting down" },
1219 { DI_LOCALRESRC, "insufficient local resources" },
1220 { DI_REMUSERRESRC, "insufficient remote user resources" },
1221 { UC_ACCESSREJECT, "invalid access control information" },
1222 { DI_BADACCNT, "bad ACCOUNT information" },
1223 { UC_NORESPONSE, "no response from object" },
1224 { UC_UNREACHABLE, "node unreachable" },
1225 { DC_NOLINK, "no link terminate" },
1226 { DC_COMPLETE, "disconnect complete" },
1227 { DI_BADIMAGE, "bad image data in connect" },
1228 { DI_SERVMISMATCH, "cryptographic service mismatch" },
1229 { 0, NULL }
1230 };
1231
1232 static void
1233 print_reason(netdissect_options *ndo,
1234 register int reason)
1235 {
1236 ND_PRINT((ndo, "%s ", tok2str(reason2str, "reason-%d", reason)));
1237 }
1238
1239 const char *
1240 dnnum_string(netdissect_options *ndo, u_short dnaddr)
1241 {
1242 char *str;
1243 size_t siz;
1244 int area = (u_short)(dnaddr & AREAMASK) >> AREASHIFT;
1245 int node = dnaddr & NODEMASK;
1246
1247 str = (char *)malloc(siz = sizeof("00.0000"));
1248 if (str == NULL)
1249 (*ndo->ndo_error)(ndo, "dnnum_string: malloc");
1250 snprintf(str, siz, "%d.%d", area, node);
1251 return(str);
1252 }
1253
1254 const char *
1255 dnname_string(netdissect_options *ndo, u_short dnaddr)
1256 {
1257 #ifdef HAVE_DNET_HTOA
1258 struct dn_naddr dna;
1259 char *dnname;
1260
1261 dna.a_len = sizeof(short);
1262 memcpy((char *)dna.a_addr, (char *)&dnaddr, sizeof(short));
1263 dnname = dnet_htoa(&dna);
1264 if(dnname != NULL)
1265 return (strdup(dnname));
1266 else
1267 return(dnnum_string(ndo, dnaddr));
1268 #else
1269 return(dnnum_string(ndo, dnaddr)); /* punt */
1270 #endif
1271 }
[mirror] the TCPdump network dissector