1 /*
2 * Copyright: (c) 2000 United States Government as represented by the
3 * Secretary of the Navy. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 * 3. The names of the authors may not be used to endorse or promote
16 * products derived from this software without specific prior
17 * written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 */
23
24 /* \summary: AFS RX printer */
25
26 /*
27 * This code unmangles RX packets. RX is the mutant form of RPC that AFS
28 * uses to communicate between clients and servers.
29 *
30 * In this code, I mainly concern myself with decoding the AFS calls, not
31 * with the guts of RX, per se.
32 *
33 * Bah. If I never look at rx_packet.h again, it will be too soon.
34 *
35 * Ken Hornstein <kenh@cmf.nrl.navy.mil>
36 */
37
38 #ifdef HAVE_CONFIG_H
39 #include "config.h"
40 #endif
41
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <netdissect-stdinc.h>
46
47 #include "netdissect.h"
48 #include "addrtoname.h"
49 #include "extract.h"
50
51 #include "ip.h"
52
53 #define FS_RX_PORT 7000
54 #define CB_RX_PORT 7001
55 #define PROT_RX_PORT 7002
56 #define VLDB_RX_PORT 7003
57 #define KAUTH_RX_PORT 7004
58 #define VOL_RX_PORT 7005
59 #define ERROR_RX_PORT 7006 /* Doesn't seem to be used */
60 #define BOS_RX_PORT 7007
61
62 #define AFSNAMEMAX 256
63 #define AFSOPAQUEMAX 1024
64 #define PRNAMEMAX 64
65 #define VLNAMEMAX 65
66 #define KANAMEMAX 64
67 #define BOSNAMEMAX 256
68
69 #define PRSFS_READ 1 /* Read files */
70 #define PRSFS_WRITE 2 /* Write files */
71 #define PRSFS_INSERT 4 /* Insert files into a directory */
72 #define PRSFS_LOOKUP 8 /* Lookup files into a directory */
73 #define PRSFS_DELETE 16 /* Delete files */
74 #define PRSFS_LOCK 32 /* Lock files */
75 #define PRSFS_ADMINISTER 64 /* Change ACL's */
76
77 struct rx_header {
78 nd_uint32_t epoch;
79 nd_uint32_t cid;
80 nd_uint32_t callNumber;
81 nd_uint32_t seq;
82 nd_uint32_t serial;
83 nd_uint8_t type;
84 #define RX_PACKET_TYPE_DATA 1
85 #define RX_PACKET_TYPE_ACK 2
86 #define RX_PACKET_TYPE_BUSY 3
87 #define RX_PACKET_TYPE_ABORT 4
88 #define RX_PACKET_TYPE_ACKALL 5
89 #define RX_PACKET_TYPE_CHALLENGE 6
90 #define RX_PACKET_TYPE_RESPONSE 7
91 #define RX_PACKET_TYPE_DEBUG 8
92 #define RX_PACKET_TYPE_PARAMS 9
93 #define RX_PACKET_TYPE_VERSION 13
94 nd_uint8_t flags;
95 #define RX_CLIENT_INITIATED 1
96 #define RX_REQUEST_ACK 2
97 #define RX_LAST_PACKET 4
98 #define RX_MORE_PACKETS 8
99 #define RX_FREE_PACKET 16
100 #define RX_SLOW_START_OK 32
101 #define RX_JUMBO_PACKET 32
102 nd_uint8_t userStatus;
103 nd_uint8_t securityIndex;
104 nd_uint16_t spare; /* How clever: even though the AFS */
105 nd_uint16_t serviceId; /* header files indicate that the */
106 }; /* serviceId is first, it's really */
107 /* encoded _after_ the spare field */
108 /* I wasted a day figuring that out! */
109
110 #define NUM_RX_FLAGS 7
111
112 #define RX_MAXACKS 255
113
114 struct rx_ackPacket {
115 uint16_t bufferSpace; /* Number of packet buffers available */
116 uint16_t maxSkew; /* Max diff between ack'd packet and */
117 /* highest packet received */
118 uint32_t firstPacket; /* The first packet in ack list */
119 uint32_t previousPacket; /* Previous packet recv'd (obsolete) */
120 uint32_t serial; /* # of packet that prompted the ack */
121 uint8_t reason; /* Reason for acknowledgement */
122 uint8_t nAcks; /* Number of acknowledgements */
123 uint8_t acks[RX_MAXACKS]; /* Up to RX_MAXACKS acknowledgements */
124 };
125
126 /*
127 * Values for the acks array
128 */
129
130 #define RX_ACK_TYPE_NACK 0 /* Don't have this packet */
131 #define RX_ACK_TYPE_ACK 1 /* I have this packet */
132
133 static const struct tok rx_types[] = {
134 { RX_PACKET_TYPE_DATA, "data" },
135 { RX_PACKET_TYPE_ACK, "ack" },
136 { RX_PACKET_TYPE_BUSY, "busy" },
137 { RX_PACKET_TYPE_ABORT, "abort" },
138 { RX_PACKET_TYPE_ACKALL, "ackall" },
139 { RX_PACKET_TYPE_CHALLENGE, "challenge" },
140 { RX_PACKET_TYPE_RESPONSE, "response" },
141 { RX_PACKET_TYPE_DEBUG, "debug" },
142 { RX_PACKET_TYPE_PARAMS, "params" },
143 { RX_PACKET_TYPE_VERSION, "version" },
144 { 0, NULL },
145 };
146
147 static const struct double_tok {
148 int flag; /* Rx flag */
149 int packetType; /* Packet type */
150 const char *s; /* Flag string */
151 } rx_flags[] = {
152 { RX_CLIENT_INITIATED, 0, "client-init" },
153 { RX_REQUEST_ACK, 0, "req-ack" },
154 { RX_LAST_PACKET, 0, "last-pckt" },
155 { RX_MORE_PACKETS, 0, "more-pckts" },
156 { RX_FREE_PACKET, 0, "free-pckt" },
157 { RX_SLOW_START_OK, RX_PACKET_TYPE_ACK, "slow-start" },
158 { RX_JUMBO_PACKET, RX_PACKET_TYPE_DATA, "jumbogram" }
159 };
160
161 static const struct tok fs_req[] = {
162 { 130, "fetch-data" },
163 { 131, "fetch-acl" },
164 { 132, "fetch-status" },
165 { 133, "store-data" },
166 { 134, "store-acl" },
167 { 135, "store-status" },
168 { 136, "remove-file" },
169 { 137, "create-file" },
170 { 138, "rename" },
171 { 139, "symlink" },
172 { 140, "link" },
173 { 141, "makedir" },
174 { 142, "rmdir" },
175 { 143, "oldsetlock" },
176 { 144, "oldextlock" },
177 { 145, "oldrellock" },
178 { 146, "get-stats" },
179 { 147, "give-cbs" },
180 { 148, "get-vlinfo" },
181 { 149, "get-vlstats" },
182 { 150, "set-vlstats" },
183 { 151, "get-rootvl" },
184 { 152, "check-token" },
185 { 153, "get-time" },
186 { 154, "nget-vlinfo" },
187 { 155, "bulk-stat" },
188 { 156, "setlock" },
189 { 157, "extlock" },
190 { 158, "rellock" },
191 { 159, "xstat-ver" },
192 { 160, "get-xstat" },
193 { 161, "dfs-lookup" },
194 { 162, "dfs-flushcps" },
195 { 163, "dfs-symlink" },
196 { 220, "residency" },
197 { 65536, "inline-bulk-status" },
198 { 65537, "fetch-data-64" },
199 { 65538, "store-data-64" },
200 { 65539, "give-up-all-cbs" },
201 { 65540, "get-caps" },
202 { 65541, "cb-rx-conn-addr" },
203 { 0, NULL },
204 };
205
206 static const struct tok cb_req[] = {
207 { 204, "callback" },
208 { 205, "initcb" },
209 { 206, "probe" },
210 { 207, "getlock" },
211 { 208, "getce" },
212 { 209, "xstatver" },
213 { 210, "getxstat" },
214 { 211, "initcb2" },
215 { 212, "whoareyou" },
216 { 213, "initcb3" },
217 { 214, "probeuuid" },
218 { 215, "getsrvprefs" },
219 { 216, "getcellservdb" },
220 { 217, "getlocalcell" },
221 { 218, "getcacheconf" },
222 { 65536, "getce64" },
223 { 65537, "getcellbynum" },
224 { 65538, "tellmeaboutyourself" },
225 { 0, NULL },
226 };
227
228 static const struct tok pt_req[] = {
229 { 500, "new-user" },
230 { 501, "where-is-it" },
231 { 502, "dump-entry" },
232 { 503, "add-to-group" },
233 { 504, "name-to-id" },
234 { 505, "id-to-name" },
235 { 506, "delete" },
236 { 507, "remove-from-group" },
237 { 508, "get-cps" },
238 { 509, "new-entry" },
239 { 510, "list-max" },
240 { 511, "set-max" },
241 { 512, "list-entry" },
242 { 513, "change-entry" },
243 { 514, "list-elements" },
244 { 515, "same-mbr-of" },
245 { 516, "set-fld-sentry" },
246 { 517, "list-owned" },
247 { 518, "get-cps2" },
248 { 519, "get-host-cps" },
249 { 520, "update-entry" },
250 { 521, "list-entries" },
251 { 530, "list-super-groups" },
252 { 0, NULL },
253 };
254
255 static const struct tok vldb_req[] = {
256 { 501, "create-entry" },
257 { 502, "delete-entry" },
258 { 503, "get-entry-by-id" },
259 { 504, "get-entry-by-name" },
260 { 505, "get-new-volume-id" },
261 { 506, "replace-entry" },
262 { 507, "update-entry" },
263 { 508, "setlock" },
264 { 509, "releaselock" },
265 { 510, "list-entry" },
266 { 511, "list-attrib" },
267 { 512, "linked-list" },
268 { 513, "get-stats" },
269 { 514, "probe" },
270 { 515, "get-addrs" },
271 { 516, "change-addr" },
272 { 517, "create-entry-n" },
273 { 518, "get-entry-by-id-n" },
274 { 519, "get-entry-by-name-n" },
275 { 520, "replace-entry-n" },
276 { 521, "list-entry-n" },
277 { 522, "list-attrib-n" },
278 { 523, "linked-list-n" },
279 { 524, "update-entry-by-name" },
280 { 525, "create-entry-u" },
281 { 526, "get-entry-by-id-u" },
282 { 527, "get-entry-by-name-u" },
283 { 528, "replace-entry-u" },
284 { 529, "list-entry-u" },
285 { 530, "list-attrib-u" },
286 { 531, "linked-list-u" },
287 { 532, "regaddr" },
288 { 533, "get-addrs-u" },
289 { 534, "list-attrib-n2" },
290 { 0, NULL },
291 };
292
293 static const struct tok kauth_req[] = {
294 { 1, "auth-old" },
295 { 21, "authenticate" },
296 { 22, "authenticate-v2" },
297 { 2, "change-pw" },
298 { 3, "get-ticket-old" },
299 { 23, "get-ticket" },
300 { 4, "set-pw" },
301 { 5, "set-fields" },
302 { 6, "create-user" },
303 { 7, "delete-user" },
304 { 8, "get-entry" },
305 { 9, "list-entry" },
306 { 10, "get-stats" },
307 { 11, "debug" },
308 { 12, "get-pw" },
309 { 13, "get-random-key" },
310 { 14, "unlock" },
311 { 15, "lock-status" },
312 { 0, NULL },
313 };
314
315 static const struct tok vol_req[] = {
316 { 100, "create-volume" },
317 { 101, "delete-volume" },
318 { 102, "restore" },
319 { 103, "forward" },
320 { 104, "end-trans" },
321 { 105, "clone" },
322 { 106, "set-flags" },
323 { 107, "get-flags" },
324 { 108, "trans-create" },
325 { 109, "dump" },
326 { 110, "get-nth-volume" },
327 { 111, "set-forwarding" },
328 { 112, "get-name" },
329 { 113, "get-status" },
330 { 114, "sig-restore" },
331 { 115, "list-partitions" },
332 { 116, "list-volumes" },
333 { 117, "set-id-types" },
334 { 118, "monitor" },
335 { 119, "partition-info" },
336 { 120, "reclone" },
337 { 121, "list-one-volume" },
338 { 122, "nuke" },
339 { 123, "set-date" },
340 { 124, "x-list-volumes" },
341 { 125, "x-list-one-volume" },
342 { 126, "set-info" },
343 { 127, "x-list-partitions" },
344 { 128, "forward-multiple" },
345 { 65536, "convert-ro" },
346 { 65537, "get-size" },
347 { 65538, "dump-v2" },
348 { 0, NULL },
349 };
350
351 static const struct tok bos_req[] = {
352 { 80, "create-bnode" },
353 { 81, "delete-bnode" },
354 { 82, "set-status" },
355 { 83, "get-status" },
356 { 84, "enumerate-instance" },
357 { 85, "get-instance-info" },
358 { 86, "get-instance-parm" },
359 { 87, "add-superuser" },
360 { 88, "delete-superuser" },
361 { 89, "list-superusers" },
362 { 90, "list-keys" },
363 { 91, "add-key" },
364 { 92, "delete-key" },
365 { 93, "set-cell-name" },
366 { 94, "get-cell-name" },
367 { 95, "get-cell-host" },
368 { 96, "add-cell-host" },
369 { 97, "delete-cell-host" },
370 { 98, "set-t-status" },
371 { 99, "shutdown-all" },
372 { 100, "restart-all" },
373 { 101, "startup-all" },
374 { 102, "set-noauth-flag" },
375 { 103, "re-bozo" },
376 { 104, "restart" },
377 { 105, "start-bozo-install" },
378 { 106, "uninstall" },
379 { 107, "get-dates" },
380 { 108, "exec" },
381 { 109, "prune" },
382 { 110, "set-restart-time" },
383 { 111, "get-restart-time" },
384 { 112, "start-bozo-log" },
385 { 113, "wait-all" },
386 { 114, "get-instance-strings" },
387 { 115, "get-restricted" },
388 { 116, "set-restricted" },
389 { 0, NULL },
390 };
391
392 static const struct tok ubik_req[] = {
393 { 10000, "vote-beacon" },
394 { 10001, "vote-debug-old" },
395 { 10002, "vote-sdebug-old" },
396 { 10003, "vote-getsyncsite" },
397 { 10004, "vote-debug" },
398 { 10005, "vote-sdebug" },
399 { 10006, "vote-xdebug" },
400 { 10007, "vote-xsdebug" },
401 { 20000, "disk-begin" },
402 { 20001, "disk-commit" },
403 { 20002, "disk-lock" },
404 { 20003, "disk-write" },
405 { 20004, "disk-getversion" },
406 { 20005, "disk-getfile" },
407 { 20006, "disk-sendfile" },
408 { 20007, "disk-abort" },
409 { 20008, "disk-releaselocks" },
410 { 20009, "disk-truncate" },
411 { 20010, "disk-probe" },
412 { 20011, "disk-writev" },
413 { 20012, "disk-interfaceaddr" },
414 { 20013, "disk-setversion" },
415 { 0, NULL },
416 };
417
418 #define VOTE_LOW 10000
419 #define VOTE_HIGH 10007
420 #define DISK_LOW 20000
421 #define DISK_HIGH 20013
422
423 static const struct tok cb_types[] = {
424 { 1, "exclusive" },
425 { 2, "shared" },
426 { 3, "dropped" },
427 { 0, NULL },
428 };
429
430 static const struct tok ubik_lock_types[] = {
431 { 1, "read" },
432 { 2, "write" },
433 { 3, "wait" },
434 { 0, NULL },
435 };
436
437 static const char *voltype[] = { "read-write", "read-only", "backup" };
438
439 static const struct tok afs_fs_errors[] = {
440 { 101, "salvage volume" },
441 { 102, "no such vnode" },
442 { 103, "no such volume" },
443 { 104, "volume exist" },
444 { 105, "no service" },
445 { 106, "volume offline" },
446 { 107, "voline online" },
447 { 108, "diskfull" },
448 { 109, "diskquota exceeded" },
449 { 110, "volume busy" },
450 { 111, "volume moved" },
451 { 112, "AFS IO error" },
452 { 0xffffff9c, "restarting fileserver" }, /* -100, sic! */
453 { 0, NULL }
454 };
455
456 /*
457 * Reasons for acknowledging a packet
458 */
459
460 static const struct tok rx_ack_reasons[] = {
461 { 1, "ack requested" },
462 { 2, "duplicate packet" },
463 { 3, "out of sequence" },
464 { 4, "exceeds window" },
465 { 5, "no buffer space" },
466 { 6, "ping" },
467 { 7, "ping response" },
468 { 8, "delay" },
469 { 9, "idle" },
470 { 0, NULL },
471 };
472
473 /*
474 * Cache entries we keep around so we can figure out the RX opcode
475 * numbers for replies. This allows us to make sense of RX reply packets.
476 */
477
478 struct rx_cache_entry {
479 uint32_t callnum; /* Call number (net order) */
480 struct in_addr client; /* client IP address (net order) */
481 struct in_addr server; /* server IP address (net order) */
482 int dport; /* server port (host order) */
483 u_short serviceId; /* Service identifier (net order) */
484 uint32_t opcode; /* RX opcode (host order) */
485 };
486
487 #define RX_CACHE_SIZE 64
488
489 static struct rx_cache_entry rx_cache[RX_CACHE_SIZE];
490
491 static int rx_cache_next = 0;
492 static int rx_cache_hint = 0;
493 static void rx_cache_insert(netdissect_options *, const u_char *, const struct ip *, int);
494 static int rx_cache_find(const struct rx_header *, const struct ip *,
495 int, int32_t *);
496
497 static void fs_print(netdissect_options *, const u_char *, int);
498 static void fs_reply_print(netdissect_options *, const u_char *, int, int32_t);
499 static void acl_print(netdissect_options *, u_char *, int, u_char *);
500 static void cb_print(netdissect_options *, const u_char *, int);
501 static void cb_reply_print(netdissect_options *, const u_char *, int, int32_t);
502 static void prot_print(netdissect_options *, const u_char *, int);
503 static void prot_reply_print(netdissect_options *, const u_char *, int, int32_t);
504 static void vldb_print(netdissect_options *, const u_char *, int);
505 static void vldb_reply_print(netdissect_options *, const u_char *, int, int32_t);
506 static void kauth_print(netdissect_options *, const u_char *, int);
507 static void kauth_reply_print(netdissect_options *, const u_char *, int, int32_t);
508 static void vol_print(netdissect_options *, const u_char *, int);
509 static void vol_reply_print(netdissect_options *, const u_char *, int, int32_t);
510 static void bos_print(netdissect_options *, const u_char *, int);
511 static void bos_reply_print(netdissect_options *, const u_char *, int, int32_t);
512 static void ubik_print(netdissect_options *, const u_char *);
513 static void ubik_reply_print(netdissect_options *, const u_char *, int, int32_t);
514
515 static void rx_ack_print(netdissect_options *, const u_char *, int);
516
517 static int is_ubik(uint32_t);
518
519 /*
520 * Handle the rx-level packet. See if we know what port it's going to so
521 * we can peek at the afs call inside
522 */
523
524 void
rx_print(netdissect_options * ndo,register const u_char * bp,int length,int sport,int dport,const u_char * bp2)525 rx_print(netdissect_options *ndo,
526 register const u_char *bp, int length, int sport, int dport,
527 const u_char *bp2)
528 {
529 register const struct rx_header *rxh;
530 int i;
531 int32_t opcode;
532
533 if (ndo->ndo_snapend - bp < (int)sizeof (struct rx_header)) {
534 ND_PRINT((ndo, " [|rx] (%d)", length));
535 return;
536 }
537
538 rxh = (const struct rx_header *) bp;
539
540 ND_PRINT((ndo, " rx %s", tok2str(rx_types, "type %d", rxh->type)));
541
542 if (ndo->ndo_vflag) {
543 int firstflag = 0;
544
545 if (ndo->ndo_vflag > 1)
546 ND_PRINT((ndo, " cid %08x call# %d",
547 (int) EXTRACT_32BITS(&rxh->cid),
548 (int) EXTRACT_32BITS(&rxh->callNumber)));
549
550 ND_PRINT((ndo, " seq %d ser %d",
551 (int) EXTRACT_32BITS(&rxh->seq),
552 (int) EXTRACT_32BITS(&rxh->serial)));
553
554 if (ndo->ndo_vflag > 2)
555 ND_PRINT((ndo, " secindex %d serviceid %hu",
556 (int) rxh->securityIndex,
557 EXTRACT_16BITS(&rxh->serviceId)));
558
559 if (ndo->ndo_vflag > 1)
560 for (i = 0; i < NUM_RX_FLAGS; i++) {
561 if (rxh->flags & rx_flags[i].flag &&
562 (!rx_flags[i].packetType ||
563 rxh->type == rx_flags[i].packetType)) {
564 if (!firstflag) {
565 firstflag = 1;
566 ND_PRINT((ndo, " "));
567 } else {
568 ND_PRINT((ndo, ","));
569 }
570 ND_PRINT((ndo, "<%s>", rx_flags[i].s));
571 }
572 }
573 }
574
575 /*
576 * Try to handle AFS calls that we know about. Check the destination
577 * port and make sure it's a data packet. Also, make sure the
578 * seq number is 1 (because otherwise it's a continuation packet,
579 * and we can't interpret that). Also, seems that reply packets
580 * do not have the client-init flag set, so we check for that
581 * as well.
582 */
583
584 if (rxh->type == RX_PACKET_TYPE_DATA &&
585 EXTRACT_32BITS(&rxh->seq) == 1 &&
586 rxh->flags & RX_CLIENT_INITIATED) {
587
588 /*
589 * Insert this call into the call cache table, so we
590 * have a chance to print out replies
591 */
592
593 rx_cache_insert(ndo, bp, (const struct ip *) bp2, dport);
594
595 switch (dport) {
596 case FS_RX_PORT: /* AFS file service */
597 fs_print(ndo, bp, length);
598 break;
599 case CB_RX_PORT: /* AFS callback service */
600 cb_print(ndo, bp, length);
601 break;
602 case PROT_RX_PORT: /* AFS protection service */
603 prot_print(ndo, bp, length);
604 break;
605 case VLDB_RX_PORT: /* AFS VLDB service */
606 vldb_print(ndo, bp, length);
607 break;
608 case KAUTH_RX_PORT: /* AFS Kerberos auth service */
609 kauth_print(ndo, bp, length);
610 break;
611 case VOL_RX_PORT: /* AFS Volume service */
612 vol_print(ndo, bp, length);
613 break;
614 case BOS_RX_PORT: /* AFS BOS service */
615 bos_print(ndo, bp, length);
616 break;
617 default:
618 ;
619 }
620
621 /*
622 * If it's a reply (client-init is _not_ set, but seq is one)
623 * then look it up in the cache. If we find it, call the reply
624 * printing functions Note that we handle abort packets here,
625 * because printing out the return code can be useful at times.
626 */
627
628 } else if (((rxh->type == RX_PACKET_TYPE_DATA &&
629 EXTRACT_32BITS(&rxh->seq) == 1) ||
630 rxh->type == RX_PACKET_TYPE_ABORT) &&
631 (rxh->flags & RX_CLIENT_INITIATED) == 0 &&
632 rx_cache_find(rxh, (const struct ip *) bp2,
633 sport, &opcode)) {
634
635 switch (sport) {
636 case FS_RX_PORT: /* AFS file service */
637 fs_reply_print(ndo, bp, length, opcode);
638 break;
639 case CB_RX_PORT: /* AFS callback service */
640 cb_reply_print(ndo, bp, length, opcode);
641 break;
642 case PROT_RX_PORT: /* AFS PT service */
643 prot_reply_print(ndo, bp, length, opcode);
644 break;
645 case VLDB_RX_PORT: /* AFS VLDB service */
646 vldb_reply_print(ndo, bp, length, opcode);
647 break;
648 case KAUTH_RX_PORT: /* AFS Kerberos auth service */
649 kauth_reply_print(ndo, bp, length, opcode);
650 break;
651 case VOL_RX_PORT: /* AFS Volume service */
652 vol_reply_print(ndo, bp, length, opcode);
653 break;
654 case BOS_RX_PORT: /* AFS BOS service */
655 bos_reply_print(ndo, bp, length, opcode);
656 break;
657 default:
658 ;
659 }
660
661 /*
662 * If it's an RX ack packet, then use the appropriate ack decoding
663 * function (there isn't any service-specific information in the
664 * ack packet, so we can use one for all AFS services)
665 */
666
667 } else if (rxh->type == RX_PACKET_TYPE_ACK)
668 rx_ack_print(ndo, bp, length);
669
670
671 ND_PRINT((ndo, " (%d)", length));
672 }
673
674 /*
675 * Insert an entry into the cache. Taken from print-nfs.c
676 */
677
678 static void
rx_cache_insert(netdissect_options * ndo,const u_char * bp,const struct ip * ip,int dport)679 rx_cache_insert(netdissect_options *ndo,
680 const u_char *bp, const struct ip *ip, int dport)
681 {
682 struct rx_cache_entry *rxent;
683 const struct rx_header *rxh = (const struct rx_header *) bp;
684
685 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t)))
686 return;
687
688 rxent = &rx_cache[rx_cache_next];
689
690 if (++rx_cache_next >= RX_CACHE_SIZE)
691 rx_cache_next = 0;
692
693 rxent->callnum = EXTRACT_32BITS(&rxh->callNumber);
694 UNALIGNED_MEMCPY(&rxent->client, &ip->ip_src, sizeof(uint32_t));
695 UNALIGNED_MEMCPY(&rxent->server, &ip->ip_dst, sizeof(uint32_t));
696 rxent->dport = dport;
697 rxent->serviceId = EXTRACT_32BITS(&rxh->serviceId);
698 rxent->opcode = EXTRACT_32BITS(bp + sizeof(struct rx_header));
699 }
700
701 /*
702 * Lookup an entry in the cache. Also taken from print-nfs.c
703 *
704 * Note that because this is a reply, we're looking at the _source_
705 * port.
706 */
707
708 static int
rx_cache_find(const struct rx_header * rxh,const struct ip * ip,int sport,int32_t * opcode)709 rx_cache_find(const struct rx_header *rxh, const struct ip *ip, int sport,
710 int32_t *opcode)
711 {
712 int i;
713 struct rx_cache_entry *rxent;
714 uint32_t clip;
715 uint32_t sip;
716
717 UNALIGNED_MEMCPY(&clip, &ip->ip_dst, sizeof(uint32_t));
718 UNALIGNED_MEMCPY(&sip, &ip->ip_src, sizeof(uint32_t));
719
720 /* Start the search where we last left off */
721
722 i = rx_cache_hint;
723 do {
724 rxent = &rx_cache[i];
725 if (rxent->callnum == EXTRACT_32BITS(&rxh->callNumber) &&
726 rxent->client.s_addr == clip &&
727 rxent->server.s_addr == sip &&
728 rxent->serviceId == EXTRACT_32BITS(&rxh->serviceId) &&
729 rxent->dport == sport) {
730
731 /* We got a match! */
732
733 rx_cache_hint = i;
734 *opcode = rxent->opcode;
735 return(1);
736 }
737 if (++i >= RX_CACHE_SIZE)
738 i = 0;
739 } while (i != rx_cache_hint);
740
741 /* Our search failed */
742 return(0);
743 }
744
745 /*
746 * These extrememly grody macros handle the printing of various AFS stuff.
747 */
748
749 #define FIDOUT() { unsigned long n1, n2, n3; \
750 ND_TCHECK2(bp[0], sizeof(int32_t) * 3); \
751 n1 = EXTRACT_32BITS(bp); \
752 bp += sizeof(int32_t); \
753 n2 = EXTRACT_32BITS(bp); \
754 bp += sizeof(int32_t); \
755 n3 = EXTRACT_32BITS(bp); \
756 bp += sizeof(int32_t); \
757 ND_PRINT((ndo, " fid %d/%d/%d", (int) n1, (int) n2, (int) n3)); \
758 }
759
760 #define STROUT(MAX) { unsigned int _i; \
761 ND_TCHECK2(bp[0], sizeof(int32_t)); \
762 _i = EXTRACT_32BITS(bp); \
763 if (_i > (MAX)) \
764 goto trunc; \
765 bp += sizeof(int32_t); \
766 ND_PRINT((ndo, " \"")); \
767 if (fn_printn(ndo, bp, _i, ndo->ndo_snapend)) \
768 goto trunc; \
769 ND_PRINT((ndo, "\"")); \
770 bp += ((_i + sizeof(int32_t) - 1) / sizeof(int32_t)) * sizeof(int32_t); \
771 }
772
773 #define INTOUT() { int _i; \
774 ND_TCHECK2(bp[0], sizeof(int32_t)); \
775 _i = (int) EXTRACT_32BITS(bp); \
776 bp += sizeof(int32_t); \
777 ND_PRINT((ndo, " %d", _i)); \
778 }
779
780 #define UINTOUT() { unsigned long _i; \
781 ND_TCHECK2(bp[0], sizeof(int32_t)); \
782 _i = EXTRACT_32BITS(bp); \
783 bp += sizeof(int32_t); \
784 ND_PRINT((ndo, " %lu", _i)); \
785 }
786
787 #define UINT64OUT() { uint64_t _i; \
788 ND_TCHECK2(bp[0], sizeof(uint64_t)); \
789 _i = EXTRACT_64BITS(bp); \
790 bp += sizeof(uint64_t); \
791 ND_PRINT((ndo, " %" PRIu64, _i)); \
792 }
793
794 #define DATEOUT() { time_t _t; struct tm *tm; char str[256]; \
795 ND_TCHECK2(bp[0], sizeof(int32_t)); \
796 _t = (time_t) EXTRACT_32BITS(bp); \
797 bp += sizeof(int32_t); \
798 tm = localtime(&_t); \
799 strftime(str, 256, "%Y/%m/%d %H:%M:%S", tm); \
800 ND_PRINT((ndo, " %s", str)); \
801 }
802
803 #define STOREATTROUT() { unsigned long mask, _i; \
804 ND_TCHECK2(bp[0], (sizeof(int32_t)*6)); \
805 mask = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
806 if (mask) ND_PRINT((ndo, " StoreStatus")); \
807 if (mask & 1) { ND_PRINT((ndo, " date")); DATEOUT(); } \
808 else bp += sizeof(int32_t); \
809 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
810 if (mask & 2) ND_PRINT((ndo, " owner %lu", _i)); \
811 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
812 if (mask & 4) ND_PRINT((ndo, " group %lu", _i)); \
813 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
814 if (mask & 8) ND_PRINT((ndo, " mode %lo", _i & 07777)); \
815 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
816 if (mask & 16) ND_PRINT((ndo, " segsize %lu", _i)); \
817 /* undocumented in 3.3 docu */ \
818 if (mask & 1024) ND_PRINT((ndo, " fsync")); \
819 }
820
821 #define UBIK_VERSIONOUT() {int32_t epoch; int32_t counter; \
822 ND_TCHECK2(bp[0], sizeof(int32_t) * 2); \
823 epoch = EXTRACT_32BITS(bp); \
824 bp += sizeof(int32_t); \
825 counter = EXTRACT_32BITS(bp); \
826 bp += sizeof(int32_t); \
827 ND_PRINT((ndo, " %d.%d", epoch, counter)); \
828 }
829
830 #define AFSUUIDOUT() {uint32_t temp; int _i; \
831 ND_TCHECK2(bp[0], 11*sizeof(uint32_t)); \
832 temp = EXTRACT_32BITS(bp); \
833 bp += sizeof(uint32_t); \
834 ND_PRINT((ndo, " %08x", temp)); \
835 temp = EXTRACT_32BITS(bp); \
836 bp += sizeof(uint32_t); \
837 ND_PRINT((ndo, "%04x", temp)); \
838 temp = EXTRACT_32BITS(bp); \
839 bp += sizeof(uint32_t); \
840 ND_PRINT((ndo, "%04x", temp)); \
841 for (_i = 0; _i < 8; _i++) { \
842 temp = EXTRACT_32BITS(bp); \
843 bp += sizeof(uint32_t); \
844 ND_PRINT((ndo, "%02x", (unsigned char) temp)); \
845 } \
846 }
847
848 /*
849 * This is the sickest one of all
850 */
851
852 #define VECOUT(MAX) { u_char *sp; \
853 u_char s[AFSNAMEMAX]; \
854 int k; \
855 if ((MAX) + 1 > sizeof(s)) \
856 goto trunc; \
857 ND_TCHECK2(bp[0], (MAX) * sizeof(int32_t)); \
858 sp = s; \
859 for (k = 0; k < (MAX); k++) { \
860 *sp++ = (u_char) EXTRACT_32BITS(bp); \
861 bp += sizeof(int32_t); \
862 } \
863 s[(MAX)] = '\0'; \
864 ND_PRINT((ndo, " \"")); \
865 fn_print(ndo, s, NULL); \
866 ND_PRINT((ndo, "\"")); \
867 }
868
869 #define DESTSERVEROUT() { unsigned long n1, n2, n3; \
870 ND_TCHECK2(bp[0], sizeof(int32_t) * 3); \
871 n1 = EXTRACT_32BITS(bp); \
872 bp += sizeof(int32_t); \
873 n2 = EXTRACT_32BITS(bp); \
874 bp += sizeof(int32_t); \
875 n3 = EXTRACT_32BITS(bp); \
876 bp += sizeof(int32_t); \
877 ND_PRINT((ndo, " server %d:%d:%d", (int) n1, (int) n2, (int) n3)); \
878 }
879
880 /*
881 * Handle calls to the AFS file service (fs)
882 */
883
884 static void
fs_print(netdissect_options * ndo,register const u_char * bp,int length)885 fs_print(netdissect_options *ndo,
886 register const u_char *bp, int length)
887 {
888 int fs_op;
889 unsigned long i;
890
891 if (length <= (int)sizeof(struct rx_header))
892 return;
893
894 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
895 goto trunc;
896 }
897
898 /*
899 * Print out the afs call we're invoking. The table used here was
900 * gleaned from fsint/afsint.xg
901 */
902
903 fs_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
904
905 ND_PRINT((ndo, " fs call %s", tok2str(fs_req, "op#%d", fs_op)));
906
907 /*
908 * Print out arguments to some of the AFS calls. This stuff is
909 * all from afsint.xg
910 */
911
912 bp += sizeof(struct rx_header) + 4;
913
914 /*
915 * Sigh. This is gross. Ritchie forgive me.
916 */
917
918 switch (fs_op) {
919 case 130: /* Fetch data */
920 FIDOUT();
921 ND_PRINT((ndo, " offset"));
922 UINTOUT();
923 ND_PRINT((ndo, " length"));
924 UINTOUT();
925 break;
926 case 131: /* Fetch ACL */
927 case 132: /* Fetch Status */
928 case 143: /* Old set lock */
929 case 144: /* Old extend lock */
930 case 145: /* Old release lock */
931 case 156: /* Set lock */
932 case 157: /* Extend lock */
933 case 158: /* Release lock */
934 FIDOUT();
935 break;
936 case 135: /* Store status */
937 FIDOUT();
938 STOREATTROUT();
939 break;
940 case 133: /* Store data */
941 FIDOUT();
942 STOREATTROUT();
943 ND_PRINT((ndo, " offset"));
944 UINTOUT();
945 ND_PRINT((ndo, " length"));
946 UINTOUT();
947 ND_PRINT((ndo, " flen"));
948 UINTOUT();
949 break;
950 case 134: /* Store ACL */
951 {
952 char a[AFSOPAQUEMAX+1];
953 FIDOUT();
954 ND_TCHECK2(bp[0], 4);
955 i = EXTRACT_32BITS(bp);
956 bp += sizeof(int32_t);
957 ND_TCHECK2(bp[0], i);
958 i = min(AFSOPAQUEMAX, i);
959 strncpy(a, (const char *) bp, i);
960 a[i] = '\0';
961 acl_print(ndo, (u_char *) a, sizeof(a), (u_char *) a + i);
962 break;
963 }
964 case 137: /* Create file */
965 case 141: /* MakeDir */
966 FIDOUT();
967 STROUT(AFSNAMEMAX);
968 STOREATTROUT();
969 break;
970 case 136: /* Remove file */
971 case 142: /* Remove directory */
972 FIDOUT();
973 STROUT(AFSNAMEMAX);
974 break;
975 case 138: /* Rename file */
976 ND_PRINT((ndo, " old"));
977 FIDOUT();
978 STROUT(AFSNAMEMAX);
979 ND_PRINT((ndo, " new"));
980 FIDOUT();
981 STROUT(AFSNAMEMAX);
982 break;
983 case 139: /* Symlink */
984 FIDOUT();
985 STROUT(AFSNAMEMAX);
986 ND_PRINT((ndo, " link to"));
987 STROUT(AFSNAMEMAX);
988 break;
989 case 140: /* Link */
990 FIDOUT();
991 STROUT(AFSNAMEMAX);
992 ND_PRINT((ndo, " link to"));
993 FIDOUT();
994 break;
995 case 148: /* Get volume info */
996 STROUT(AFSNAMEMAX);
997 break;
998 case 149: /* Get volume stats */
999 case 150: /* Set volume stats */
1000 ND_PRINT((ndo, " volid"));
1001 UINTOUT();
1002 break;
1003 case 154: /* New get volume info */
1004 ND_PRINT((ndo, " volname"));
1005 STROUT(AFSNAMEMAX);
1006 break;
1007 case 155: /* Bulk stat */
1008 case 65536: /* Inline bulk stat */
1009 {
1010 unsigned long j;
1011 ND_TCHECK2(bp[0], 4);
1012 j = EXTRACT_32BITS(bp);
1013 bp += sizeof(int32_t);
1014
1015 for (i = 0; i < j; i++) {
1016 FIDOUT();
1017 if (i != j - 1)
1018 ND_PRINT((ndo, ","));
1019 }
1020 if (j == 0)
1021 ND_PRINT((ndo, " <none!>"));
1022 }
1023 case 65537: /* Fetch data 64 */
1024 FIDOUT();
1025 ND_PRINT((ndo, " offset"));
1026 UINT64OUT();
1027 ND_PRINT((ndo, " length"));
1028 UINT64OUT();
1029 break;
1030 case 65538: /* Store data 64 */
1031 FIDOUT();
1032 STOREATTROUT();
1033 ND_PRINT((ndo, " offset"));
1034 UINT64OUT();
1035 ND_PRINT((ndo, " length"));
1036 UINT64OUT();
1037 ND_PRINT((ndo, " flen"));
1038 UINT64OUT();
1039 break;
1040 case 65541: /* CallBack rx conn address */
1041 ND_PRINT((ndo, " addr"));
1042 UINTOUT();
1043 default:
1044 ;
1045 }
1046
1047 return;
1048
1049 trunc:
1050 ND_PRINT((ndo, " [|fs]"));
1051 }
1052
1053 /*
1054 * Handle replies to the AFS file service
1055 */
1056
1057 static void
fs_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)1058 fs_reply_print(netdissect_options *ndo,
1059 register const u_char *bp, int length, int32_t opcode)
1060 {
1061 unsigned long i;
1062 const struct rx_header *rxh;
1063
1064 if (length <= (int)sizeof(struct rx_header))
1065 return;
1066
1067 rxh = (const struct rx_header *) bp;
1068
1069 /*
1070 * Print out the afs call we're invoking. The table used here was
1071 * gleaned from fsint/afsint.xg
1072 */
1073
1074 ND_PRINT((ndo, " fs reply %s", tok2str(fs_req, "op#%d", opcode)));
1075
1076 bp += sizeof(struct rx_header);
1077
1078 /*
1079 * If it was a data packet, interpret the response
1080 */
1081
1082 if (rxh->type == RX_PACKET_TYPE_DATA) {
1083 switch (opcode) {
1084 case 131: /* Fetch ACL */
1085 {
1086 char a[AFSOPAQUEMAX+1];
1087 ND_TCHECK2(bp[0], 4);
1088 i = EXTRACT_32BITS(bp);
1089 bp += sizeof(int32_t);
1090 ND_TCHECK2(bp[0], i);
1091 i = min(AFSOPAQUEMAX, i);
1092 strncpy(a, (const char *) bp, i);
1093 a[i] = '\0';
1094 acl_print(ndo, (u_char *) a, sizeof(a), (u_char *) a + i);
1095 break;
1096 }
1097 case 137: /* Create file */
1098 case 141: /* MakeDir */
1099 ND_PRINT((ndo, " new"));
1100 FIDOUT();
1101 break;
1102 case 151: /* Get root volume */
1103 ND_PRINT((ndo, " root volume"));
1104 STROUT(AFSNAMEMAX);
1105 break;
1106 case 153: /* Get time */
1107 DATEOUT();
1108 break;
1109 default:
1110 ;
1111 }
1112 } else if (rxh->type == RX_PACKET_TYPE_ABORT) {
1113 /*
1114 * Otherwise, just print out the return code
1115 */
1116 ND_TCHECK2(bp[0], sizeof(int32_t));
1117 i = (int) EXTRACT_32BITS(bp);
1118 bp += sizeof(int32_t);
1119
1120 ND_PRINT((ndo, " error %s", tok2str(afs_fs_errors, "#%d", i)));
1121 } else {
1122 ND_PRINT((ndo, " strange fs reply of type %d", rxh->type));
1123 }
1124
1125 return;
1126
1127 trunc:
1128 ND_PRINT((ndo, " [|fs]"));
1129 }
1130
1131 /*
1132 * Print out an AFS ACL string. An AFS ACL is a string that has the
1133 * following format:
1134 *
1135 * <positive> <negative>
1136 * <uid1> <aclbits1>
1137 * ....
1138 *
1139 * "positive" and "negative" are integers which contain the number of
1140 * positive and negative ACL's in the string. The uid/aclbits pair are
1141 * ASCII strings containing the UID/PTS record and and a ascii number
1142 * representing a logical OR of all the ACL permission bits
1143 */
1144
1145 static void
acl_print(netdissect_options * ndo,u_char * s,int maxsize,u_char * end)1146 acl_print(netdissect_options *ndo,
1147 u_char *s, int maxsize, u_char *end)
1148 {
1149 int pos, neg, acl;
1150 int n, i;
1151 char *user;
1152 char fmt[1024];
1153
1154 if ((user = (char *)malloc(maxsize)) == NULL)
1155 return;
1156
1157 if (sscanf((char *) s, "%d %d\n%n", &pos, &neg, &n) != 2)
1158 goto finish;
1159
1160 s += n;
1161
1162 if (s > end)
1163 goto finish;
1164
1165 /*
1166 * This wacky order preserves the order used by the "fs" command
1167 */
1168
1169 #define ACLOUT(acl) \
1170 ND_PRINT((ndo, "%s%s%s%s%s%s%s", \
1171 acl & PRSFS_READ ? "r" : "", \
1172 acl & PRSFS_LOOKUP ? "l" : "", \
1173 acl & PRSFS_INSERT ? "i" : "", \
1174 acl & PRSFS_DELETE ? "d" : "", \
1175 acl & PRSFS_WRITE ? "w" : "", \
1176 acl & PRSFS_LOCK ? "k" : "", \
1177 acl & PRSFS_ADMINISTER ? "a" : ""));
1178
1179 for (i = 0; i < pos; i++) {
1180 snprintf(fmt, sizeof(fmt), "%%%ds %%d\n%%n", maxsize - 1);
1181 if (sscanf((char *) s, fmt, user, &acl, &n) != 2)
1182 goto finish;
1183 s += n;
1184 ND_PRINT((ndo, " +{"));
1185 fn_print(ndo, (u_char *)user, NULL);
1186 ND_PRINT((ndo, " "));
1187 ACLOUT(acl);
1188 ND_PRINT((ndo, "}"));
1189 if (s > end)
1190 goto finish;
1191 }
1192
1193 for (i = 0; i < neg; i++) {
1194 snprintf(fmt, sizeof(fmt), "%%%ds %%d\n%%n", maxsize - 1);
1195 if (sscanf((char *) s, fmt, user, &acl, &n) != 2)
1196 goto finish;
1197 s += n;
1198 ND_PRINT((ndo, " -{"));
1199 fn_print(ndo, (u_char *)user, NULL);
1200 ND_PRINT((ndo, " "));
1201 ACLOUT(acl);
1202 ND_PRINT((ndo, "}"));
1203 if (s > end)
1204 goto finish;
1205 }
1206
1207 finish:
1208 free(user);
1209 return;
1210 }
1211
1212 #undef ACLOUT
1213
1214 /*
1215 * Handle calls to the AFS callback service
1216 */
1217
1218 static void
cb_print(netdissect_options * ndo,register const u_char * bp,int length)1219 cb_print(netdissect_options *ndo,
1220 register const u_char *bp, int length)
1221 {
1222 int cb_op;
1223 unsigned long i;
1224
1225 if (length <= (int)sizeof(struct rx_header))
1226 return;
1227
1228 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1229 goto trunc;
1230 }
1231
1232 /*
1233 * Print out the afs call we're invoking. The table used here was
1234 * gleaned from fsint/afscbint.xg
1235 */
1236
1237 cb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1238
1239 ND_PRINT((ndo, " cb call %s", tok2str(cb_req, "op#%d", cb_op)));
1240
1241 bp += sizeof(struct rx_header) + 4;
1242
1243 /*
1244 * Print out the afs call we're invoking. The table used here was
1245 * gleaned from fsint/afscbint.xg
1246 */
1247
1248 switch (cb_op) {
1249 case 204: /* Callback */
1250 {
1251 unsigned long j, t;
1252 ND_TCHECK2(bp[0], 4);
1253 j = EXTRACT_32BITS(bp);
1254 bp += sizeof(int32_t);
1255
1256 for (i = 0; i < j; i++) {
1257 FIDOUT();
1258 if (i != j - 1)
1259 ND_PRINT((ndo, ","));
1260 }
1261
1262 if (j == 0)
1263 ND_PRINT((ndo, " <none!>"));
1264
1265 ND_TCHECK_32BITS(bp);
1266 j = EXTRACT_32BITS(bp);
1267 bp += sizeof(int32_t);
1268
1269 if (j != 0)
1270 ND_PRINT((ndo, ";"));
1271
1272 for (i = 0; i < j; i++) {
1273 ND_PRINT((ndo, " ver"));
1274 INTOUT();
1275 ND_PRINT((ndo, " expires"));
1276 DATEOUT();
1277 ND_TCHECK2(bp[0], 4);
1278 t = EXTRACT_32BITS(bp);
1279 bp += sizeof(int32_t);
1280 tok2str(cb_types, "type %d", t);
1281 }
1282 }
1283 case 214: {
1284 ND_PRINT((ndo, " afsuuid"));
1285 AFSUUIDOUT();
1286 break;
1287 }
1288 default:
1289 ;
1290 }
1291
1292 return;
1293
1294 trunc:
1295 ND_PRINT((ndo, " [|cb]"));
1296 }
1297
1298 /*
1299 * Handle replies to the AFS Callback Service
1300 */
1301
1302 static void
cb_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)1303 cb_reply_print(netdissect_options *ndo,
1304 register const u_char *bp, int length, int32_t opcode)
1305 {
1306 const struct rx_header *rxh;
1307
1308 if (length <= (int)sizeof(struct rx_header))
1309 return;
1310
1311 rxh = (const struct rx_header *) bp;
1312
1313 /*
1314 * Print out the afs call we're invoking. The table used here was
1315 * gleaned from fsint/afscbint.xg
1316 */
1317
1318 ND_PRINT((ndo, " cb reply %s", tok2str(cb_req, "op#%d", opcode)));
1319
1320 bp += sizeof(struct rx_header);
1321
1322 /*
1323 * If it was a data packet, interpret the response.
1324 */
1325
1326 if (rxh->type == RX_PACKET_TYPE_DATA)
1327 switch (opcode) {
1328 case 213: /* InitCallBackState3 */
1329 AFSUUIDOUT();
1330 break;
1331 default:
1332 ;
1333 }
1334 else {
1335 /*
1336 * Otherwise, just print out the return code
1337 */
1338 ND_PRINT((ndo, " errcode"));
1339 INTOUT();
1340 }
1341
1342 return;
1343
1344 trunc:
1345 ND_PRINT((ndo, " [|cb]"));
1346 }
1347
1348 /*
1349 * Handle calls to the AFS protection database server
1350 */
1351
1352 static void
prot_print(netdissect_options * ndo,register const u_char * bp,int length)1353 prot_print(netdissect_options *ndo,
1354 register const u_char *bp, int length)
1355 {
1356 unsigned long i;
1357 int pt_op;
1358
1359 if (length <= (int)sizeof(struct rx_header))
1360 return;
1361
1362 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1363 goto trunc;
1364 }
1365
1366 /*
1367 * Print out the afs call we're invoking. The table used here was
1368 * gleaned from ptserver/ptint.xg
1369 */
1370
1371 pt_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1372
1373 ND_PRINT((ndo, " pt"));
1374
1375 if (is_ubik(pt_op)) {
1376 ubik_print(ndo, bp);
1377 return;
1378 }
1379
1380 ND_PRINT((ndo, " call %s", tok2str(pt_req, "op#%d", pt_op)));
1381
1382 /*
1383 * Decode some of the arguments to the PT calls
1384 */
1385
1386 bp += sizeof(struct rx_header) + 4;
1387
1388 switch (pt_op) {
1389 case 500: /* I New User */
1390 STROUT(PRNAMEMAX);
1391 ND_PRINT((ndo, " id"));
1392 INTOUT();
1393 ND_PRINT((ndo, " oldid"));
1394 INTOUT();
1395 break;
1396 case 501: /* Where is it */
1397 case 506: /* Delete */
1398 case 508: /* Get CPS */
1399 case 512: /* List entry */
1400 case 514: /* List elements */
1401 case 517: /* List owned */
1402 case 518: /* Get CPS2 */
1403 case 519: /* Get host CPS */
1404 case 530: /* List super groups */
1405 ND_PRINT((ndo, " id"));
1406 INTOUT();
1407 break;
1408 case 502: /* Dump entry */
1409 ND_PRINT((ndo, " pos"));
1410 INTOUT();
1411 break;
1412 case 503: /* Add to group */
1413 case 507: /* Remove from group */
1414 case 515: /* Is a member of? */
1415 ND_PRINT((ndo, " uid"));
1416 INTOUT();
1417 ND_PRINT((ndo, " gid"));
1418 INTOUT();
1419 break;
1420 case 504: /* Name to ID */
1421 {
1422 unsigned long j;
1423 ND_TCHECK2(bp[0], 4);
1424 j = EXTRACT_32BITS(bp);
1425 bp += sizeof(int32_t);
1426
1427 /*
1428 * Who designed this chicken-shit protocol?
1429 *
1430 * Each character is stored as a 32-bit
1431 * integer!
1432 */
1433
1434 for (i = 0; i < j; i++) {
1435 VECOUT(PRNAMEMAX);
1436 }
1437 if (j == 0)
1438 ND_PRINT((ndo, " <none!>"));
1439 }
1440 break;
1441 case 505: /* Id to name */
1442 {
1443 unsigned long j;
1444 ND_PRINT((ndo, " ids:"));
1445 ND_TCHECK2(bp[0], 4);
1446 i = EXTRACT_32BITS(bp);
1447 bp += sizeof(int32_t);
1448 for (j = 0; j < i; j++)
1449 INTOUT();
1450 if (j == 0)
1451 ND_PRINT((ndo, " <none!>"));
1452 }
1453 break;
1454 case 509: /* New entry */
1455 STROUT(PRNAMEMAX);
1456 ND_PRINT((ndo, " flag"));
1457 INTOUT();
1458 ND_PRINT((ndo, " oid"));
1459 INTOUT();
1460 break;
1461 case 511: /* Set max */
1462 ND_PRINT((ndo, " id"));
1463 INTOUT();
1464 ND_PRINT((ndo, " gflag"));
1465 INTOUT();
1466 break;
1467 case 513: /* Change entry */
1468 ND_PRINT((ndo, " id"));
1469 INTOUT();
1470 STROUT(PRNAMEMAX);
1471 ND_PRINT((ndo, " oldid"));
1472 INTOUT();
1473 ND_PRINT((ndo, " newid"));
1474 INTOUT();
1475 break;
1476 case 520: /* Update entry */
1477 ND_PRINT((ndo, " id"));
1478 INTOUT();
1479 STROUT(PRNAMEMAX);
1480 break;
1481 default:
1482 ;
1483 }
1484
1485
1486 return;
1487
1488 trunc:
1489 ND_PRINT((ndo, " [|pt]"));
1490 }
1491
1492 /*
1493 * Handle replies to the AFS protection service
1494 */
1495
1496 static void
prot_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)1497 prot_reply_print(netdissect_options *ndo,
1498 register const u_char *bp, int length, int32_t opcode)
1499 {
1500 const struct rx_header *rxh;
1501 unsigned long i;
1502
1503 if (length < (int)sizeof(struct rx_header))
1504 return;
1505
1506 rxh = (const struct rx_header *) bp;
1507
1508 /*
1509 * Print out the afs call we're invoking. The table used here was
1510 * gleaned from ptserver/ptint.xg. Check to see if it's a
1511 * Ubik call, however.
1512 */
1513
1514 ND_PRINT((ndo, " pt"));
1515
1516 if (is_ubik(opcode)) {
1517 ubik_reply_print(ndo, bp, length, opcode);
1518 return;
1519 }
1520
1521 ND_PRINT((ndo, " reply %s", tok2str(pt_req, "op#%d", opcode)));
1522
1523 bp += sizeof(struct rx_header);
1524
1525 /*
1526 * If it was a data packet, interpret the response
1527 */
1528
1529 if (rxh->type == RX_PACKET_TYPE_DATA)
1530 switch (opcode) {
1531 case 504: /* Name to ID */
1532 {
1533 unsigned long j;
1534 ND_PRINT((ndo, " ids:"));
1535 ND_TCHECK2(bp[0], 4);
1536 i = EXTRACT_32BITS(bp);
1537 bp += sizeof(int32_t);
1538 for (j = 0; j < i; j++)
1539 INTOUT();
1540 if (j == 0)
1541 ND_PRINT((ndo, " <none!>"));
1542 }
1543 break;
1544 case 505: /* ID to name */
1545 {
1546 unsigned long j;
1547 ND_TCHECK2(bp[0], 4);
1548 j = EXTRACT_32BITS(bp);
1549 bp += sizeof(int32_t);
1550
1551 /*
1552 * Who designed this chicken-shit protocol?
1553 *
1554 * Each character is stored as a 32-bit
1555 * integer!
1556 */
1557
1558 for (i = 0; i < j; i++) {
1559 VECOUT(PRNAMEMAX);
1560 }
1561 if (j == 0)
1562 ND_PRINT((ndo, " <none!>"));
1563 }
1564 break;
1565 case 508: /* Get CPS */
1566 case 514: /* List elements */
1567 case 517: /* List owned */
1568 case 518: /* Get CPS2 */
1569 case 519: /* Get host CPS */
1570 {
1571 unsigned long j;
1572 ND_TCHECK2(bp[0], 4);
1573 j = EXTRACT_32BITS(bp);
1574 bp += sizeof(int32_t);
1575 for (i = 0; i < j; i++) {
1576 INTOUT();
1577 }
1578 if (j == 0)
1579 ND_PRINT((ndo, " <none!>"));
1580 }
1581 break;
1582 case 510: /* List max */
1583 ND_PRINT((ndo, " maxuid"));
1584 INTOUT();
1585 ND_PRINT((ndo, " maxgid"));
1586 INTOUT();
1587 break;
1588 default:
1589 ;
1590 }
1591 else {
1592 /*
1593 * Otherwise, just print out the return code
1594 */
1595 ND_PRINT((ndo, " errcode"));
1596 INTOUT();
1597 }
1598
1599 return;
1600
1601 trunc:
1602 ND_PRINT((ndo, " [|pt]"));
1603 }
1604
1605 /*
1606 * Handle calls to the AFS volume location database service
1607 */
1608
1609 static void
vldb_print(netdissect_options * ndo,register const u_char * bp,int length)1610 vldb_print(netdissect_options *ndo,
1611 register const u_char *bp, int length)
1612 {
1613 int vldb_op;
1614 unsigned long i;
1615
1616 if (length <= (int)sizeof(struct rx_header))
1617 return;
1618
1619 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1620 goto trunc;
1621 }
1622
1623 /*
1624 * Print out the afs call we're invoking. The table used here was
1625 * gleaned from vlserver/vldbint.xg
1626 */
1627
1628 vldb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1629
1630 ND_PRINT((ndo, " vldb"));
1631
1632 if (is_ubik(vldb_op)) {
1633 ubik_print(ndo, bp);
1634 return;
1635 }
1636 ND_PRINT((ndo, " call %s", tok2str(vldb_req, "op#%d", vldb_op)));
1637
1638 /*
1639 * Decode some of the arguments to the VLDB calls
1640 */
1641
1642 bp += sizeof(struct rx_header) + 4;
1643
1644 switch (vldb_op) {
1645 case 501: /* Create new volume */
1646 case 517: /* Create entry N */
1647 VECOUT(VLNAMEMAX);
1648 break;
1649 case 502: /* Delete entry */
1650 case 503: /* Get entry by ID */
1651 case 507: /* Update entry */
1652 case 508: /* Set lock */
1653 case 509: /* Release lock */
1654 case 518: /* Get entry by ID N */
1655 ND_PRINT((ndo, " volid"));
1656 INTOUT();
1657 ND_TCHECK2(bp[0], sizeof(int32_t));
1658 i = EXTRACT_32BITS(bp);
1659 bp += sizeof(int32_t);
1660 if (i <= 2)
1661 ND_PRINT((ndo, " type %s", voltype[i]));
1662 break;
1663 case 504: /* Get entry by name */
1664 case 519: /* Get entry by name N */
1665 case 524: /* Update entry by name */
1666 case 527: /* Get entry by name U */
1667 STROUT(VLNAMEMAX);
1668 break;
1669 case 505: /* Get new vol id */
1670 ND_PRINT((ndo, " bump"));
1671 INTOUT();
1672 break;
1673 case 506: /* Replace entry */
1674 case 520: /* Replace entry N */
1675 ND_PRINT((ndo, " volid"));
1676 INTOUT();
1677 ND_TCHECK2(bp[0], sizeof(int32_t));
1678 i = EXTRACT_32BITS(bp);
1679 bp += sizeof(int32_t);
1680 if (i <= 2)
1681 ND_PRINT((ndo, " type %s", voltype[i]));
1682 VECOUT(VLNAMEMAX);
1683 break;
1684 case 510: /* List entry */
1685 case 521: /* List entry N */
1686 ND_PRINT((ndo, " index"));
1687 INTOUT();
1688 break;
1689 default:
1690 ;
1691 }
1692
1693 return;
1694
1695 trunc:
1696 ND_PRINT((ndo, " [|vldb]"));
1697 }
1698
1699 /*
1700 * Handle replies to the AFS volume location database service
1701 */
1702
1703 static void
vldb_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)1704 vldb_reply_print(netdissect_options *ndo,
1705 register const u_char *bp, int length, int32_t opcode)
1706 {
1707 const struct rx_header *rxh;
1708 unsigned long i;
1709
1710 if (length < (int)sizeof(struct rx_header))
1711 return;
1712
1713 rxh = (const struct rx_header *) bp;
1714
1715 /*
1716 * Print out the afs call we're invoking. The table used here was
1717 * gleaned from vlserver/vldbint.xg. Check to see if it's a
1718 * Ubik call, however.
1719 */
1720
1721 ND_PRINT((ndo, " vldb"));
1722
1723 if (is_ubik(opcode)) {
1724 ubik_reply_print(ndo, bp, length, opcode);
1725 return;
1726 }
1727
1728 ND_PRINT((ndo, " reply %s", tok2str(vldb_req, "op#%d", opcode)));
1729
1730 bp += sizeof(struct rx_header);
1731
1732 /*
1733 * If it was a data packet, interpret the response
1734 */
1735
1736 if (rxh->type == RX_PACKET_TYPE_DATA)
1737 switch (opcode) {
1738 case 510: /* List entry */
1739 ND_PRINT((ndo, " count"));
1740 INTOUT();
1741 ND_PRINT((ndo, " nextindex"));
1742 INTOUT();
1743 case 503: /* Get entry by id */
1744 case 504: /* Get entry by name */
1745 { unsigned long nservers, j;
1746 VECOUT(VLNAMEMAX);
1747 ND_TCHECK2(bp[0], sizeof(int32_t));
1748 bp += sizeof(int32_t);
1749 ND_PRINT((ndo, " numservers"));
1750 ND_TCHECK2(bp[0], sizeof(int32_t));
1751 nservers = EXTRACT_32BITS(bp);
1752 bp += sizeof(int32_t);
1753 ND_PRINT((ndo, " %lu", nservers));
1754 ND_PRINT((ndo, " servers"));
1755 for (i = 0; i < 8; i++) {
1756 ND_TCHECK2(bp[0], sizeof(int32_t));
1757 if (i < nservers)
1758 ND_PRINT((ndo, " %s",
1759 intoa(((const struct in_addr *) bp)->s_addr)));
1760 bp += sizeof(int32_t);
1761 }
1762 ND_PRINT((ndo, " partitions"));
1763 for (i = 0; i < 8; i++) {
1764 ND_TCHECK2(bp[0], sizeof(int32_t));
1765 j = EXTRACT_32BITS(bp);
1766 if (i < nservers && j <= 26)
1767 ND_PRINT((ndo, " %c", 'a' + (int)j));
1768 else if (i < nservers)
1769 ND_PRINT((ndo, " %lu", j));
1770 bp += sizeof(int32_t);
1771 }
1772 ND_TCHECK2(bp[0], 8 * sizeof(int32_t));
1773 bp += 8 * sizeof(int32_t);
1774 ND_PRINT((ndo, " rwvol"));
1775 UINTOUT();
1776 ND_PRINT((ndo, " rovol"));
1777 UINTOUT();
1778 ND_PRINT((ndo, " backup"));
1779 UINTOUT();
1780 }
1781 break;
1782 case 505: /* Get new volume ID */
1783 ND_PRINT((ndo, " newvol"));
1784 UINTOUT();
1785 break;
1786 case 521: /* List entry */
1787 case 529: /* List entry U */
1788 ND_PRINT((ndo, " count"));
1789 INTOUT();
1790 ND_PRINT((ndo, " nextindex"));
1791 INTOUT();
1792 case 518: /* Get entry by ID N */
1793 case 519: /* Get entry by name N */
1794 { unsigned long nservers, j;
1795 VECOUT(VLNAMEMAX);
1796 ND_PRINT((ndo, " numservers"));
1797 ND_TCHECK2(bp[0], sizeof(int32_t));
1798 nservers = EXTRACT_32BITS(bp);
1799 bp += sizeof(int32_t);
1800 ND_PRINT((ndo, " %lu", nservers));
1801 ND_PRINT((ndo, " servers"));
1802 for (i = 0; i < 13; i++) {
1803 ND_TCHECK2(bp[0], sizeof(int32_t));
1804 if (i < nservers)
1805 ND_PRINT((ndo, " %s",
1806 intoa(((const struct in_addr *) bp)->s_addr)));
1807 bp += sizeof(int32_t);
1808 }
1809 ND_PRINT((ndo, " partitions"));
1810 for (i = 0; i < 13; i++) {
1811 ND_TCHECK2(bp[0], sizeof(int32_t));
1812 j = EXTRACT_32BITS(bp);
1813 if (i < nservers && j <= 26)
1814 ND_PRINT((ndo, " %c", 'a' + (int)j));
1815 else if (i < nservers)
1816 ND_PRINT((ndo, " %lu", j));
1817 bp += sizeof(int32_t);
1818 }
1819 ND_TCHECK2(bp[0], 13 * sizeof(int32_t));
1820 bp += 13 * sizeof(int32_t);
1821 ND_PRINT((ndo, " rwvol"));
1822 UINTOUT();
1823 ND_PRINT((ndo, " rovol"));
1824 UINTOUT();
1825 ND_PRINT((ndo, " backup"));
1826 UINTOUT();
1827 }
1828 break;
1829 case 526: /* Get entry by ID U */
1830 case 527: /* Get entry by name U */
1831 { unsigned long nservers, j;
1832 VECOUT(VLNAMEMAX);
1833 ND_PRINT((ndo, " numservers"));
1834 ND_TCHECK2(bp[0], sizeof(int32_t));
1835 nservers = EXTRACT_32BITS(bp);
1836 bp += sizeof(int32_t);
1837 ND_PRINT((ndo, " %lu", nservers));
1838 ND_PRINT((ndo, " servers"));
1839 for (i = 0; i < 13; i++) {
1840 if (i < nservers) {
1841 ND_PRINT((ndo, " afsuuid"));
1842 AFSUUIDOUT();
1843 } else {
1844 ND_TCHECK2(bp[0], 44);
1845 bp += 44;
1846 }
1847 }
1848 ND_TCHECK2(bp[0], 4 * 13);
1849 bp += 4 * 13;
1850 ND_PRINT((ndo, " partitions"));
1851 for (i = 0; i < 13; i++) {
1852 ND_TCHECK2(bp[0], sizeof(int32_t));
1853 j = EXTRACT_32BITS(bp);
1854 if (i < nservers && j <= 26)
1855 ND_PRINT((ndo, " %c", 'a' + (int)j));
1856 else if (i < nservers)
1857 ND_PRINT((ndo, " %lu", j));
1858 bp += sizeof(int32_t);
1859 }
1860 ND_TCHECK2(bp[0], 13 * sizeof(int32_t));
1861 bp += 13 * sizeof(int32_t);
1862 ND_PRINT((ndo, " rwvol"));
1863 UINTOUT();
1864 ND_PRINT((ndo, " rovol"));
1865 UINTOUT();
1866 ND_PRINT((ndo, " backup"));
1867 UINTOUT();
1868 }
1869 default:
1870 ;
1871 }
1872
1873 else {
1874 /*
1875 * Otherwise, just print out the return code
1876 */
1877 ND_PRINT((ndo, " errcode"));
1878 INTOUT();
1879 }
1880
1881 return;
1882
1883 trunc:
1884 ND_PRINT((ndo, " [|vldb]"));
1885 }
1886
1887 /*
1888 * Handle calls to the AFS Kerberos Authentication service
1889 */
1890
1891 static void
kauth_print(netdissect_options * ndo,register const u_char * bp,int length)1892 kauth_print(netdissect_options *ndo,
1893 register const u_char *bp, int length)
1894 {
1895 int kauth_op;
1896
1897 if (length <= (int)sizeof(struct rx_header))
1898 return;
1899
1900 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1901 goto trunc;
1902 }
1903
1904 /*
1905 * Print out the afs call we're invoking. The table used here was
1906 * gleaned from kauth/kauth.rg
1907 */
1908
1909 kauth_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1910
1911 ND_PRINT((ndo, " kauth"));
1912
1913 if (is_ubik(kauth_op)) {
1914 ubik_print(ndo, bp);
1915 return;
1916 }
1917
1918
1919 ND_PRINT((ndo, " call %s", tok2str(kauth_req, "op#%d", kauth_op)));
1920
1921 /*
1922 * Decode some of the arguments to the KA calls
1923 */
1924
1925 bp += sizeof(struct rx_header) + 4;
1926
1927 switch (kauth_op) {
1928 case 1: /* Authenticate old */
1929 case 21: /* Authenticate */
1930 case 22: /* Authenticate-V2 */
1931 case 2: /* Change PW */
1932 case 5: /* Set fields */
1933 case 6: /* Create user */
1934 case 7: /* Delete user */
1935 case 8: /* Get entry */
1936 case 14: /* Unlock */
1937 case 15: /* Lock status */
1938 ND_PRINT((ndo, " principal"));
1939 STROUT(KANAMEMAX);
1940 STROUT(KANAMEMAX);
1941 break;
1942 case 3: /* GetTicket-old */
1943 case 23: /* GetTicket */
1944 {
1945 int i;
1946 ND_PRINT((ndo, " kvno"));
1947 INTOUT();
1948 ND_PRINT((ndo, " domain"));
1949 STROUT(KANAMEMAX);
1950 ND_TCHECK2(bp[0], sizeof(int32_t));
1951 i = (int) EXTRACT_32BITS(bp);
1952 bp += sizeof(int32_t);
1953 ND_TCHECK2(bp[0], i);
1954 bp += i;
1955 ND_PRINT((ndo, " principal"));
1956 STROUT(KANAMEMAX);
1957 STROUT(KANAMEMAX);
1958 break;
1959 }
1960 case 4: /* Set Password */
1961 ND_PRINT((ndo, " principal"));
1962 STROUT(KANAMEMAX);
1963 STROUT(KANAMEMAX);
1964 ND_PRINT((ndo, " kvno"));
1965 INTOUT();
1966 break;
1967 case 12: /* Get password */
1968 ND_PRINT((ndo, " name"));
1969 STROUT(KANAMEMAX);
1970 break;
1971 default:
1972 ;
1973 }
1974
1975 return;
1976
1977 trunc:
1978 ND_PRINT((ndo, " [|kauth]"));
1979 }
1980
1981 /*
1982 * Handle replies to the AFS Kerberos Authentication Service
1983 */
1984
1985 static void
kauth_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)1986 kauth_reply_print(netdissect_options *ndo,
1987 register const u_char *bp, int length, int32_t opcode)
1988 {
1989 const struct rx_header *rxh;
1990
1991 if (length <= (int)sizeof(struct rx_header))
1992 return;
1993
1994 rxh = (const struct rx_header *) bp;
1995
1996 /*
1997 * Print out the afs call we're invoking. The table used here was
1998 * gleaned from kauth/kauth.rg
1999 */
2000
2001 ND_PRINT((ndo, " kauth"));
2002
2003 if (is_ubik(opcode)) {
2004 ubik_reply_print(ndo, bp, length, opcode);
2005 return;
2006 }
2007
2008 ND_PRINT((ndo, " reply %s", tok2str(kauth_req, "op#%d", opcode)));
2009
2010 bp += sizeof(struct rx_header);
2011
2012 /*
2013 * If it was a data packet, interpret the response.
2014 */
2015
2016 if (rxh->type == RX_PACKET_TYPE_DATA)
2017 /* Well, no, not really. Leave this for later */
2018 ;
2019 else {
2020 /*
2021 * Otherwise, just print out the return code
2022 */
2023 ND_PRINT((ndo, " errcode"));
2024 INTOUT();
2025 }
2026
2027 return;
2028
2029 trunc:
2030 ND_PRINT((ndo, " [|kauth]"));
2031 }
2032
2033 /*
2034 * Handle calls to the AFS Volume location service
2035 */
2036
2037 static void
vol_print(netdissect_options * ndo,register const u_char * bp,int length)2038 vol_print(netdissect_options *ndo,
2039 register const u_char *bp, int length)
2040 {
2041 int vol_op;
2042
2043 if (length <= (int)sizeof(struct rx_header))
2044 return;
2045
2046 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
2047 goto trunc;
2048 }
2049
2050 /*
2051 * Print out the afs call we're invoking. The table used here was
2052 * gleaned from volser/volint.xg
2053 */
2054
2055 vol_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
2056
2057 ND_PRINT((ndo, " vol call %s", tok2str(vol_req, "op#%d", vol_op)));
2058
2059 bp += sizeof(struct rx_header) + 4;
2060
2061 switch (vol_op) {
2062 case 100: /* Create volume */
2063 ND_PRINT((ndo, " partition"));
2064 UINTOUT();
2065 ND_PRINT((ndo, " name"));
2066 STROUT(AFSNAMEMAX);
2067 ND_PRINT((ndo, " type"));
2068 UINTOUT();
2069 ND_PRINT((ndo, " parent"));
2070 UINTOUT();
2071 break;
2072 case 101: /* Delete volume */
2073 case 107: /* Get flags */
2074 ND_PRINT((ndo, " trans"));
2075 UINTOUT();
2076 break;
2077 case 102: /* Restore */
2078 ND_PRINT((ndo, " totrans"));
2079 UINTOUT();
2080 ND_PRINT((ndo, " flags"));
2081 UINTOUT();
2082 break;
2083 case 103: /* Forward */
2084 ND_PRINT((ndo, " fromtrans"));
2085 UINTOUT();
2086 ND_PRINT((ndo, " fromdate"));
2087 DATEOUT();
2088 DESTSERVEROUT();
2089 ND_PRINT((ndo, " desttrans"));
2090 INTOUT();
2091 break;
2092 case 104: /* End trans */
2093 ND_PRINT((ndo, " trans"));
2094 UINTOUT();
2095 break;
2096 case 105: /* Clone */
2097 ND_PRINT((ndo, " trans"));
2098 UINTOUT();
2099 ND_PRINT((ndo, " purgevol"));
2100 UINTOUT();
2101 ND_PRINT((ndo, " newtype"));
2102 UINTOUT();
2103 ND_PRINT((ndo, " newname"));
2104 STROUT(AFSNAMEMAX);
2105 break;
2106 case 106: /* Set flags */
2107 ND_PRINT((ndo, " trans"));
2108 UINTOUT();
2109 ND_PRINT((ndo, " flags"));
2110 UINTOUT();
2111 break;
2112 case 108: /* Trans create */
2113 ND_PRINT((ndo, " vol"));
2114 UINTOUT();
2115 ND_PRINT((ndo, " partition"));
2116 UINTOUT();
2117 ND_PRINT((ndo, " flags"));
2118 UINTOUT();
2119 break;
2120 case 109: /* Dump */
2121 case 655537: /* Get size */
2122 ND_PRINT((ndo, " fromtrans"));
2123 UINTOUT();
2124 ND_PRINT((ndo, " fromdate"));
2125 DATEOUT();
2126 break;
2127 case 110: /* Get n-th volume */
2128 ND_PRINT((ndo, " index"));
2129 UINTOUT();
2130 break;
2131 case 111: /* Set forwarding */
2132 ND_PRINT((ndo, " tid"));
2133 UINTOUT();
2134 ND_PRINT((ndo, " newsite"));
2135 UINTOUT();
2136 break;
2137 case 112: /* Get name */
2138 case 113: /* Get status */
2139 ND_PRINT((ndo, " tid"));
2140 break;
2141 case 114: /* Signal restore */
2142 ND_PRINT((ndo, " name"));
2143 STROUT(AFSNAMEMAX);
2144 ND_PRINT((ndo, " type"));
2145 UINTOUT();
2146 ND_PRINT((ndo, " pid"));
2147 UINTOUT();
2148 ND_PRINT((ndo, " cloneid"));
2149 UINTOUT();
2150 break;
2151 case 116: /* List volumes */
2152 ND_PRINT((ndo, " partition"));
2153 UINTOUT();
2154 ND_PRINT((ndo, " flags"));
2155 UINTOUT();
2156 break;
2157 case 117: /* Set id types */
2158 ND_PRINT((ndo, " tid"));
2159 UINTOUT();
2160 ND_PRINT((ndo, " name"));
2161 STROUT(AFSNAMEMAX);
2162 ND_PRINT((ndo, " type"));
2163 UINTOUT();
2164 ND_PRINT((ndo, " pid"));
2165 UINTOUT();
2166 ND_PRINT((ndo, " clone"));
2167 UINTOUT();
2168 ND_PRINT((ndo, " backup"));
2169 UINTOUT();
2170 break;
2171 case 119: /* Partition info */
2172 ND_PRINT((ndo, " name"));
2173 STROUT(AFSNAMEMAX);
2174 break;
2175 case 120: /* Reclone */
2176 ND_PRINT((ndo, " tid"));
2177 UINTOUT();
2178 break;
2179 case 121: /* List one volume */
2180 case 122: /* Nuke volume */
2181 case 124: /* Extended List volumes */
2182 case 125: /* Extended List one volume */
2183 case 65536: /* Convert RO to RW volume */
2184 ND_PRINT((ndo, " partid"));
2185 UINTOUT();
2186 ND_PRINT((ndo, " volid"));
2187 UINTOUT();
2188 break;
2189 case 123: /* Set date */
2190 ND_PRINT((ndo, " tid"));
2191 UINTOUT();
2192 ND_PRINT((ndo, " date"));
2193 DATEOUT();
2194 break;
2195 case 126: /* Set info */
2196 ND_PRINT((ndo, " tid"));
2197 UINTOUT();
2198 break;
2199 case 128: /* Forward multiple */
2200 ND_PRINT((ndo, " fromtrans"));
2201 UINTOUT();
2202 ND_PRINT((ndo, " fromdate"));
2203 DATEOUT();
2204 {
2205 unsigned long i, j;
2206 ND_TCHECK2(bp[0], 4);
2207 j = EXTRACT_32BITS(bp);
2208 bp += sizeof(int32_t);
2209 for (i = 0; i < j; i++) {
2210 DESTSERVEROUT();
2211 if (i != j - 1)
2212 ND_PRINT((ndo, ","));
2213 }
2214 if (j == 0)
2215 ND_PRINT((ndo, " <none!>"));
2216 }
2217 break;
2218 case 65538: /* Dump version 2 */
2219 ND_PRINT((ndo, " fromtrans"));
2220 UINTOUT();
2221 ND_PRINT((ndo, " fromdate"));
2222 DATEOUT();
2223 ND_PRINT((ndo, " flags"));
2224 UINTOUT();
2225 break;
2226 default:
2227 ;
2228 }
2229 return;
2230
2231 trunc:
2232 ND_PRINT((ndo, " [|vol]"));
2233 }
2234
2235 /*
2236 * Handle replies to the AFS Volume Service
2237 */
2238
2239 static void
vol_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)2240 vol_reply_print(netdissect_options *ndo,
2241 register const u_char *bp, int length, int32_t opcode)
2242 {
2243 const struct rx_header *rxh;
2244
2245 if (length <= (int)sizeof(struct rx_header))
2246 return;
2247
2248 rxh = (const struct rx_header *) bp;
2249
2250 /*
2251 * Print out the afs call we're invoking. The table used here was
2252 * gleaned from volser/volint.xg
2253 */
2254
2255 ND_PRINT((ndo, " vol reply %s", tok2str(vol_req, "op#%d", opcode)));
2256
2257 bp += sizeof(struct rx_header);
2258
2259 /*
2260 * If it was a data packet, interpret the response.
2261 */
2262
2263 if (rxh->type == RX_PACKET_TYPE_DATA) {
2264 switch (opcode) {
2265 case 100: /* Create volume */
2266 ND_PRINT((ndo, " volid"));
2267 UINTOUT();
2268 ND_PRINT((ndo, " trans"));
2269 UINTOUT();
2270 break;
2271 case 104: /* End transaction */
2272 UINTOUT();
2273 break;
2274 case 105: /* Clone */
2275 ND_PRINT((ndo, " newvol"));
2276 UINTOUT();
2277 break;
2278 case 107: /* Get flags */
2279 UINTOUT();
2280 break;
2281 case 108: /* Transaction create */
2282 ND_PRINT((ndo, " trans"));
2283 UINTOUT();
2284 break;
2285 case 110: /* Get n-th volume */
2286 ND_PRINT((ndo, " volume"));
2287 UINTOUT();
2288 ND_PRINT((ndo, " partition"));
2289 UINTOUT();
2290 break;
2291 case 112: /* Get name */
2292 STROUT(AFSNAMEMAX);
2293 break;
2294 case 113: /* Get status */
2295 ND_PRINT((ndo, " volid"));
2296 UINTOUT();
2297 ND_PRINT((ndo, " nextuniq"));
2298 UINTOUT();
2299 ND_PRINT((ndo, " type"));
2300 UINTOUT();
2301 ND_PRINT((ndo, " parentid"));
2302 UINTOUT();
2303 ND_PRINT((ndo, " clone"));
2304 UINTOUT();
2305 ND_PRINT((ndo, " backup"));
2306 UINTOUT();
2307 ND_PRINT((ndo, " restore"));
2308 UINTOUT();
2309 ND_PRINT((ndo, " maxquota"));
2310 UINTOUT();
2311 ND_PRINT((ndo, " minquota"));
2312 UINTOUT();
2313 ND_PRINT((ndo, " owner"));
2314 UINTOUT();
2315 ND_PRINT((ndo, " create"));
2316 DATEOUT();
2317 ND_PRINT((ndo, " access"));
2318 DATEOUT();
2319 ND_PRINT((ndo, " update"));
2320 DATEOUT();
2321 ND_PRINT((ndo, " expire"));
2322 DATEOUT();
2323 ND_PRINT((ndo, " backup"));
2324 DATEOUT();
2325 ND_PRINT((ndo, " copy"));
2326 DATEOUT();
2327 break;
2328 case 115: /* Old list partitions */
2329 break;
2330 case 116: /* List volumes */
2331 case 121: /* List one volume */
2332 {
2333 unsigned long i, j;
2334 ND_TCHECK2(bp[0], 4);
2335 j = EXTRACT_32BITS(bp);
2336 bp += sizeof(int32_t);
2337 for (i = 0; i < j; i++) {
2338 ND_PRINT((ndo, " name"));
2339 VECOUT(32);
2340 ND_PRINT((ndo, " volid"));
2341 UINTOUT();
2342 ND_PRINT((ndo, " type"));
2343 bp += sizeof(int32_t) * 21;
2344 if (i != j - 1)
2345 ND_PRINT((ndo, ","));
2346 }
2347 if (j == 0)
2348 ND_PRINT((ndo, " <none!>"));
2349 }
2350 break;
2351
2352
2353 default:
2354 ;
2355 }
2356 } else {
2357 /*
2358 * Otherwise, just print out the return code
2359 */
2360 ND_PRINT((ndo, " errcode"));
2361 INTOUT();
2362 }
2363
2364 return;
2365
2366 trunc:
2367 ND_PRINT((ndo, " [|vol]"));
2368 }
2369
2370 /*
2371 * Handle calls to the AFS BOS service
2372 */
2373
2374 static void
bos_print(netdissect_options * ndo,register const u_char * bp,int length)2375 bos_print(netdissect_options *ndo,
2376 register const u_char *bp, int length)
2377 {
2378 int bos_op;
2379
2380 if (length <= (int)sizeof(struct rx_header))
2381 return;
2382
2383 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
2384 goto trunc;
2385 }
2386
2387 /*
2388 * Print out the afs call we're invoking. The table used here was
2389 * gleaned from bozo/bosint.xg
2390 */
2391
2392 bos_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
2393
2394 ND_PRINT((ndo, " bos call %s", tok2str(bos_req, "op#%d", bos_op)));
2395
2396 /*
2397 * Decode some of the arguments to the BOS calls
2398 */
2399
2400 bp += sizeof(struct rx_header) + 4;
2401
2402 switch (bos_op) {
2403 case 80: /* Create B node */
2404 ND_PRINT((ndo, " type"));
2405 STROUT(BOSNAMEMAX);
2406 ND_PRINT((ndo, " instance"));
2407 STROUT(BOSNAMEMAX);
2408 break;
2409 case 81: /* Delete B node */
2410 case 83: /* Get status */
2411 case 85: /* Get instance info */
2412 case 87: /* Add super user */
2413 case 88: /* Delete super user */
2414 case 93: /* Set cell name */
2415 case 96: /* Add cell host */
2416 case 97: /* Delete cell host */
2417 case 104: /* Restart */
2418 case 106: /* Uninstall */
2419 case 108: /* Exec */
2420 case 112: /* Getlog */
2421 case 114: /* Get instance strings */
2422 STROUT(BOSNAMEMAX);
2423 break;
2424 case 82: /* Set status */
2425 case 98: /* Set T status */
2426 STROUT(BOSNAMEMAX);
2427 ND_PRINT((ndo, " status"));
2428 INTOUT();
2429 break;
2430 case 86: /* Get instance parm */
2431 STROUT(BOSNAMEMAX);
2432 ND_PRINT((ndo, " num"));
2433 INTOUT();
2434 break;
2435 case 84: /* Enumerate instance */
2436 case 89: /* List super users */
2437 case 90: /* List keys */
2438 case 91: /* Add key */
2439 case 92: /* Delete key */
2440 case 95: /* Get cell host */
2441 INTOUT();
2442 break;
2443 case 105: /* Install */
2444 STROUT(BOSNAMEMAX);
2445 ND_PRINT((ndo, " size"));
2446 INTOUT();
2447 ND_PRINT((ndo, " flags"));
2448 INTOUT();
2449 ND_PRINT((ndo, " date"));
2450 INTOUT();
2451 break;
2452 default:
2453 ;
2454 }
2455
2456 return;
2457
2458 trunc:
2459 ND_PRINT((ndo, " [|bos]"));
2460 }
2461
2462 /*
2463 * Handle replies to the AFS BOS Service
2464 */
2465
2466 static void
bos_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)2467 bos_reply_print(netdissect_options *ndo,
2468 register const u_char *bp, int length, int32_t opcode)
2469 {
2470 const struct rx_header *rxh;
2471
2472 if (length <= (int)sizeof(struct rx_header))
2473 return;
2474
2475 rxh = (const struct rx_header *) bp;
2476
2477 /*
2478 * Print out the afs call we're invoking. The table used here was
2479 * gleaned from volser/volint.xg
2480 */
2481
2482 ND_PRINT((ndo, " bos reply %s", tok2str(bos_req, "op#%d", opcode)));
2483
2484 bp += sizeof(struct rx_header);
2485
2486 /*
2487 * If it was a data packet, interpret the response.
2488 */
2489
2490 if (rxh->type == RX_PACKET_TYPE_DATA)
2491 /* Well, no, not really. Leave this for later */
2492 ;
2493 else {
2494 /*
2495 * Otherwise, just print out the return code
2496 */
2497 ND_PRINT((ndo, " errcode"));
2498 INTOUT();
2499 }
2500
2501 return;
2502
2503 trunc:
2504 ND_PRINT((ndo, " [|bos]"));
2505 }
2506
2507 /*
2508 * Check to see if this is a Ubik opcode.
2509 */
2510
2511 static int
is_ubik(uint32_t opcode)2512 is_ubik(uint32_t opcode)
2513 {
2514 if ((opcode >= VOTE_LOW && opcode <= VOTE_HIGH) ||
2515 (opcode >= DISK_LOW && opcode <= DISK_HIGH))
2516 return(1);
2517 else
2518 return(0);
2519 }
2520
2521 /*
2522 * Handle Ubik opcodes to any one of the replicated database services
2523 */
2524
2525 static void
ubik_print(netdissect_options * ndo,register const u_char * bp)2526 ubik_print(netdissect_options *ndo,
2527 register const u_char *bp)
2528 {
2529 int ubik_op;
2530 int32_t temp;
2531
2532 /*
2533 * Print out the afs call we're invoking. The table used here was
2534 * gleaned from ubik/ubik_int.xg
2535 */
2536
2537 /* Every function that calls this function first makes a bounds check
2538 * for (sizeof(rx_header) + 4) bytes, so long as it remains this way
2539 * the line below will not over-read.
2540 */
2541 ubik_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
2542
2543 ND_PRINT((ndo, " ubik call %s", tok2str(ubik_req, "op#%d", ubik_op)));
2544
2545 /*
2546 * Decode some of the arguments to the Ubik calls
2547 */
2548
2549 bp += sizeof(struct rx_header) + 4;
2550
2551 switch (ubik_op) {
2552 case 10000: /* Beacon */
2553 ND_TCHECK2(bp[0], 4);
2554 temp = EXTRACT_32BITS(bp);
2555 bp += sizeof(int32_t);
2556 ND_PRINT((ndo, " syncsite %s", temp ? "yes" : "no"));
2557 ND_PRINT((ndo, " votestart"));
2558 DATEOUT();
2559 ND_PRINT((ndo, " dbversion"));
2560 UBIK_VERSIONOUT();
2561 ND_PRINT((ndo, " tid"));
2562 UBIK_VERSIONOUT();
2563 break;
2564 case 10003: /* Get sync site */
2565 ND_PRINT((ndo, " site"));
2566 UINTOUT();
2567 break;
2568 case 20000: /* Begin */
2569 case 20001: /* Commit */
2570 case 20007: /* Abort */
2571 case 20008: /* Release locks */
2572 case 20010: /* Writev */
2573 ND_PRINT((ndo, " tid"));
2574 UBIK_VERSIONOUT();
2575 break;
2576 case 20002: /* Lock */
2577 ND_PRINT((ndo, " tid"));
2578 UBIK_VERSIONOUT();
2579 ND_PRINT((ndo, " file"));
2580 INTOUT();
2581 ND_PRINT((ndo, " pos"));
2582 INTOUT();
2583 ND_PRINT((ndo, " length"));
2584 INTOUT();
2585 ND_TCHECK_32BITS(bp);
2586 temp = EXTRACT_32BITS(bp);
2587 bp += sizeof(int32_t);
2588 tok2str(ubik_lock_types, "type %d", temp);
2589 break;
2590 case 20003: /* Write */
2591 ND_PRINT((ndo, " tid"));
2592 UBIK_VERSIONOUT();
2593 ND_PRINT((ndo, " file"));
2594 INTOUT();
2595 ND_PRINT((ndo, " pos"));
2596 INTOUT();
2597 break;
2598 case 20005: /* Get file */
2599 ND_PRINT((ndo, " file"));
2600 INTOUT();
2601 break;
2602 case 20006: /* Send file */
2603 ND_PRINT((ndo, " file"));
2604 INTOUT();
2605 ND_PRINT((ndo, " length"));
2606 INTOUT();
2607 ND_PRINT((ndo, " dbversion"));
2608 UBIK_VERSIONOUT();
2609 break;
2610 case 20009: /* Truncate */
2611 ND_PRINT((ndo, " tid"));
2612 UBIK_VERSIONOUT();
2613 ND_PRINT((ndo, " file"));
2614 INTOUT();
2615 ND_PRINT((ndo, " length"));
2616 INTOUT();
2617 break;
2618 case 20012: /* Set version */
2619 ND_PRINT((ndo, " tid"));
2620 UBIK_VERSIONOUT();
2621 ND_PRINT((ndo, " oldversion"));
2622 UBIK_VERSIONOUT();
2623 ND_PRINT((ndo, " newversion"));
2624 UBIK_VERSIONOUT();
2625 break;
2626 default:
2627 ;
2628 }
2629
2630 return;
2631
2632 trunc:
2633 ND_PRINT((ndo, " [|ubik]"));
2634 }
2635
2636 /*
2637 * Handle Ubik replies to any one of the replicated database services
2638 */
2639
2640 static void
ubik_reply_print(netdissect_options * ndo,register const u_char * bp,int length,int32_t opcode)2641 ubik_reply_print(netdissect_options *ndo,
2642 register const u_char *bp, int length, int32_t opcode)
2643 {
2644 const struct rx_header *rxh;
2645
2646 if (length < (int)sizeof(struct rx_header))
2647 return;
2648
2649 rxh = (const struct rx_header *) bp;
2650
2651 /*
2652 * Print out the ubik call we're invoking. This table was gleaned
2653 * from ubik/ubik_int.xg
2654 */
2655
2656 ND_PRINT((ndo, " ubik reply %s", tok2str(ubik_req, "op#%d", opcode)));
2657
2658 bp += sizeof(struct rx_header);
2659
2660 /*
2661 * If it was a data packet, print out the arguments to the Ubik calls
2662 */
2663
2664 if (rxh->type == RX_PACKET_TYPE_DATA)
2665 switch (opcode) {
2666 case 10000: /* Beacon */
2667 ND_PRINT((ndo, " vote no"));
2668 break;
2669 case 20004: /* Get version */
2670 ND_PRINT((ndo, " dbversion"));
2671 UBIK_VERSIONOUT();
2672 break;
2673 default:
2674 ;
2675 }
2676
2677 /*
2678 * Otherwise, print out "yes" it it was a beacon packet (because
2679 * that's how yes votes are returned, go figure), otherwise
2680 * just print out the error code.
2681 */
2682
2683 else
2684 switch (opcode) {
2685 case 10000: /* Beacon */
2686 ND_PRINT((ndo, " vote yes until"));
2687 DATEOUT();
2688 break;
2689 default:
2690 ND_PRINT((ndo, " errcode"));
2691 INTOUT();
2692 }
2693
2694 return;
2695
2696 trunc:
2697 ND_PRINT((ndo, " [|ubik]"));
2698 }
2699
2700 /*
2701 * Handle RX ACK packets.
2702 */
2703
2704 static void
rx_ack_print(netdissect_options * ndo,register const u_char * bp,int length)2705 rx_ack_print(netdissect_options *ndo,
2706 register const u_char *bp, int length)
2707 {
2708 const struct rx_ackPacket *rxa;
2709 int i, start, last;
2710 uint32_t firstPacket;
2711
2712 if (length < (int)sizeof(struct rx_header))
2713 return;
2714
2715 bp += sizeof(struct rx_header);
2716
2717 /*
2718 * This may seem a little odd .... the rx_ackPacket structure
2719 * contains an array of individual packet acknowledgements
2720 * (used for selective ack/nack), but since it's variable in size,
2721 * we don't want to truncate based on the size of the whole
2722 * rx_ackPacket structure.
2723 */
2724
2725 ND_TCHECK2(bp[0], sizeof(struct rx_ackPacket) - RX_MAXACKS);
2726
2727 rxa = (const struct rx_ackPacket *) bp;
2728 bp += (sizeof(struct rx_ackPacket) - RX_MAXACKS);
2729
2730 /*
2731 * Print out a few useful things from the ack packet structure
2732 */
2733
2734 if (ndo->ndo_vflag > 2)
2735 ND_PRINT((ndo, " bufspace %d maxskew %d",
2736 (int) EXTRACT_16BITS(&rxa->bufferSpace),
2737 (int) EXTRACT_16BITS(&rxa->maxSkew)));
2738
2739 firstPacket = EXTRACT_32BITS(&rxa->firstPacket);
2740 ND_PRINT((ndo, " first %d serial %d reason %s",
2741 firstPacket, EXTRACT_32BITS(&rxa->serial),
2742 tok2str(rx_ack_reasons, "#%d", (int) rxa->reason)));
2743
2744 /*
2745 * Okay, now we print out the ack array. The way _this_ works
2746 * is that we start at "first", and step through the ack array.
2747 * If we have a contiguous range of acks/nacks, try to
2748 * collapse them into a range.
2749 *
2750 * If you're really clever, you might have noticed that this
2751 * doesn't seem quite correct. Specifically, due to structure
2752 * padding, sizeof(struct rx_ackPacket) - RX_MAXACKS won't actually
2753 * yield the start of the ack array (because RX_MAXACKS is 255
2754 * and the structure will likely get padded to a 2 or 4 byte
2755 * boundary). However, this is the way it's implemented inside
2756 * of AFS - the start of the extra fields are at
2757 * sizeof(struct rx_ackPacket) - RX_MAXACKS + nAcks, which _isn't_
2758 * the exact start of the ack array. Sigh. That's why we aren't
2759 * using bp, but instead use rxa->acks[]. But nAcks gets added
2760 * to bp after this, so bp ends up at the right spot. Go figure.
2761 */
2762
2763 if (rxa->nAcks != 0) {
2764
2765 ND_TCHECK2(bp[0], rxa->nAcks);
2766
2767 /*
2768 * Sigh, this is gross, but it seems to work to collapse
2769 * ranges correctly.
2770 */
2771
2772 for (i = 0, start = last = -2; i < rxa->nAcks; i++)
2773 if (rxa->acks[i] == RX_ACK_TYPE_ACK) {
2774
2775 /*
2776 * I figured this deserved _some_ explanation.
2777 * First, print "acked" and the packet seq
2778 * number if this is the first time we've
2779 * seen an acked packet.
2780 */
2781
2782 if (last == -2) {
2783 ND_PRINT((ndo, " acked %d", firstPacket + i));
2784 start = i;
2785 }
2786
2787 /*
2788 * Otherwise, if there is a skip in
2789 * the range (such as an nacked packet in
2790 * the middle of some acked packets),
2791 * then print the current packet number
2792 * seperated from the last number by
2793 * a comma.
2794 */
2795
2796 else if (last != i - 1) {
2797 ND_PRINT((ndo, ",%d", firstPacket + i));
2798 start = i;
2799 }
2800
2801 /*
2802 * We always set last to the value of
2803 * the last ack we saw. Conversely, start
2804 * is set to the value of the first ack
2805 * we saw in a range.
2806 */
2807
2808 last = i;
2809
2810 /*
2811 * Okay, this bit a code gets executed when
2812 * we hit a nack ... in _this_ case we
2813 * want to print out the range of packets
2814 * that were acked, so we need to print
2815 * the _previous_ packet number seperated
2816 * from the first by a dash (-). Since we
2817 * already printed the first packet above,
2818 * just print the final packet. Don't
2819 * do this if there will be a single-length
2820 * range.
2821 */
2822 } else if (last == i - 1 && start != last)
2823 ND_PRINT((ndo, "-%d", firstPacket + i - 1));
2824
2825 /*
2826 * So, what's going on here? We ran off the end of the
2827 * ack list, and if we got a range we need to finish it up.
2828 * So we need to determine if the last packet in the list
2829 * was an ack (if so, then last will be set to it) and
2830 * we need to see if the last range didn't start with the
2831 * last packet (because if it _did_, then that would mean
2832 * that the packet number has already been printed and
2833 * we don't need to print it again).
2834 */
2835
2836 if (last == i - 1 && start != last)
2837 ND_PRINT((ndo, "-%d", firstPacket + i - 1));
2838
2839 /*
2840 * Same as above, just without comments
2841 */
2842
2843 for (i = 0, start = last = -2; i < rxa->nAcks; i++)
2844 if (rxa->acks[i] == RX_ACK_TYPE_NACK) {
2845 if (last == -2) {
2846 ND_PRINT((ndo, " nacked %d", firstPacket + i));
2847 start = i;
2848 } else if (last != i - 1) {
2849 ND_PRINT((ndo, ",%d", firstPacket + i));
2850 start = i;
2851 }
2852 last = i;
2853 } else if (last == i - 1 && start != last)
2854 ND_PRINT((ndo, "-%d", firstPacket + i - 1));
2855
2856 if (last == i - 1 && start != last)
2857 ND_PRINT((ndo, "-%d", firstPacket + i - 1));
2858
2859 bp += rxa->nAcks;
2860 }
2861
2862
2863 /*
2864 * These are optional fields; depending on your version of AFS,
2865 * you may or may not see them
2866 */
2867
2868 #define TRUNCRET(n) if (ndo->ndo_snapend - bp + 1 <= n) return;
2869
2870 if (ndo->ndo_vflag > 1) {
2871 TRUNCRET(4);
2872 ND_PRINT((ndo, " ifmtu"));
2873 INTOUT();
2874
2875 TRUNCRET(4);
2876 ND_PRINT((ndo, " maxmtu"));
2877 INTOUT();
2878
2879 TRUNCRET(4);
2880 ND_PRINT((ndo, " rwind"));
2881 INTOUT();
2882
2883 TRUNCRET(4);
2884 ND_PRINT((ndo, " maxpackets"));
2885 INTOUT();
2886 }
2887
2888 return;
2889
2890 trunc:
2891 ND_PRINT((ndo, " [|ack]"));
2892 }
2893 #undef TRUNCRET
2894