2 * Copyright: (c) 2000 United States Government as represented by the
3 * Secretary of the Navy. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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
15 * 3. The names of the authors may not be used to endorse or promote
16 * products derived from this software without specific prior
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.
24 * This code unmangles RX packets. RX is the mutant form of RPC that AFS
25 * uses to communicate between clients and servers.
27 * In this code, I mainly concern myself with decoding the AFS calls, not
28 * with the guts of RX, per se.
30 * Bah. If I never look at rx_packet.h again, it will be too soon.
32 * Ken Hornstein <kenh@cmf.nrl.navy.mil>
36 static const char rcsid[] _U_ =
37 "@(#) $Header: /tcpdump/master/tcpdump/print-rx.c,v 1.35.2.2 2003/11/16 08:51:43 guy Exp $";
47 #include <tcpdump-stdinc.h>
49 #include "interface.h"
50 #include "addrtoname.h"
57 static struct tok rx_types[] = {
58 { RX_PACKET_TYPE_DATA, "data" },
59 { RX_PACKET_TYPE_ACK, "ack" },
60 { RX_PACKET_TYPE_BUSY, "busy" },
61 { RX_PACKET_TYPE_ABORT, "abort" },
62 { RX_PACKET_TYPE_ACKALL, "ackall" },
63 { RX_PACKET_TYPE_CHALLENGE, "challenge" },
64 { RX_PACKET_TYPE_RESPONSE, "response" },
65 { RX_PACKET_TYPE_DEBUG, "debug" },
66 { RX_PACKET_TYPE_PARAMS, "params" },
67 { RX_PACKET_TYPE_VERSION, "version" },
71 static struct double_tok {
72 int flag; /* Rx flag */
73 int packetType; /* Packet type */
74 const char *s; /* Flag string */
76 { RX_CLIENT_INITIATED, 0, "client-init" },
77 { RX_REQUEST_ACK, 0, "req-ack" },
78 { RX_LAST_PACKET, 0, "last-pckt" },
79 { RX_MORE_PACKETS, 0, "more-pckts" },
80 { RX_FREE_PACKET, 0, "free-pckt" },
81 { RX_SLOW_START_OK, RX_PACKET_TYPE_ACK, "slow-start" },
82 { RX_JUMBO_PACKET, RX_PACKET_TYPE_DATA, "jumbogram" }
85 static struct tok fs_req[] = {
86 { 130, "fetch-data" },
88 { 132, "fetch-status" },
89 { 133, "store-data" },
91 { 135, "store-status" },
92 { 136, "remove-file" },
93 { 137, "create-file" },
99 { 143, "oldsetlock" },
100 { 144, "oldextlock" },
101 { 145, "oldrellock" },
102 { 146, "get-stats" },
104 { 148, "get-vlinfo" },
105 { 149, "get-vlstats" },
106 { 150, "set-vlstats" },
107 { 151, "get-rootvl" },
108 { 152, "check-token" },
110 { 154, "nget-vlinfo" },
111 { 155, "bulk-stat" },
115 { 159, "xstat-ver" },
116 { 160, "get-xstat" },
117 { 161, "dfs-lookup" },
118 { 162, "dfs-flushcps" },
119 { 163, "dfs-symlink" },
120 { 220, "residency" },
124 static struct tok cb_req[] = {
133 { 212, "whoareyou" },
135 { 214, "probeuuid" },
136 { 215, "getsrvprefs" },
137 { 216, "getcellservdb" },
138 { 217, "getlocalcell" },
139 { 218, "getcacheconf" },
143 static struct tok pt_req[] = {
145 { 501, "where-is-it" },
146 { 502, "dump-entry" },
147 { 503, "add-to-group" },
148 { 504, "name-to-id" },
149 { 505, "id-to-name" },
151 { 507, "remove-from-group" },
153 { 509, "new-entry" },
156 { 512, "list-entry" },
157 { 513, "change-entry" },
158 { 514, "list-elements" },
159 { 515, "same-mbr-of" },
160 { 516, "set-fld-sentry" },
161 { 517, "list-owned" },
163 { 519, "get-host-cps" },
164 { 520, "update-entry" },
165 { 521, "list-entries" },
169 static struct tok vldb_req[] = {
170 { 501, "create-entry" },
171 { 502, "delete-entry" },
172 { 503, "get-entry-by-id" },
173 { 504, "get-entry-by-name" },
174 { 505, "get-new-volume-id" },
175 { 506, "replace-entry" },
176 { 507, "update-entry" },
178 { 509, "releaselock" },
179 { 510, "list-entry" },
180 { 511, "list-attrib" },
181 { 512, "linked-list" },
182 { 513, "get-stats" },
184 { 515, "get-addrs" },
185 { 516, "change-addr" },
186 { 517, "create-entry-n" },
187 { 518, "get-entry-by-id-n" },
188 { 519, "get-entry-by-name-n" },
189 { 520, "replace-entry-n" },
190 { 521, "list-entry-n" },
191 { 522, "list-attrib-n" },
192 { 523, "linked-list-n" },
193 { 524, "update-entry-by-name" },
194 { 525, "create-entry-u" },
195 { 526, "get-entry-by-id-u" },
196 { 527, "get-entry-by-name-u" },
197 { 528, "replace-entry-u" },
198 { 529, "list-entry-u" },
199 { 530, "list-attrib-u" },
200 { 531, "linked-list-u" },
202 { 533, "get-addrs-u" },
203 { 534, "list-attrib-n2" },
207 static struct tok kauth_req[] = {
209 { 21, "authenticate" },
210 { 22, "authenticate-v2" },
212 { 3, "get-ticket-old" },
213 { 23, "get-ticket" },
216 { 6, "create-user" },
217 { 7, "delete-user" },
223 { 13, "get-random-key" },
225 { 15, "lock-status" },
229 static struct tok vol_req[] = {
230 { 100, "create-volume" },
231 { 101, "delete-volume" },
234 { 104, "end-trans" },
236 { 106, "set-flags" },
237 { 107, "get-flags" },
238 { 108, "trans-create" },
240 { 110, "get-nth-volume" },
241 { 111, "set-forwarding" },
243 { 113, "get-status" },
244 { 114, "sig-restore" },
245 { 115, "list-partitions" },
246 { 116, "list-volumes" },
247 { 117, "set-id-types" },
249 { 119, "partition-info" },
251 { 121, "list-one-volume" },
254 { 124, "x-list-volumes" },
255 { 125, "x-list-one-volume" },
257 { 127, "x-list-partitions" },
258 { 128, "forward-multiple" },
262 static struct tok bos_req[] = {
263 { 80, "create-bnode" },
264 { 81, "delete-bnode" },
265 { 82, "set-status" },
266 { 83, "get-status" },
267 { 84, "enumerate-instance" },
268 { 85, "get-instance-info" },
269 { 86, "get-instance-parm" },
270 { 87, "add-superuser" },
271 { 88, "delete-superuser" },
272 { 89, "list-superusers" },
275 { 92, "delete-key" },
276 { 93, "set-cell-name" },
277 { 94, "get-cell-name" },
278 { 95, "get-cell-host" },
279 { 96, "add-cell-host" },
280 { 97, "delete-cell-host" },
281 { 98, "set-t-status" },
282 { 99, "shutdown-all" },
283 { 100, "restart-all" },
284 { 101, "startup-all" },
285 { 102, "set-noauth-flag" },
288 { 105, "start-bozo-install" },
289 { 106, "uninstall" },
290 { 107, "get-dates" },
293 { 110, "set-restart-time" },
294 { 111, "get-restart-time" },
295 { 112, "start-bozo-log" },
297 { 114, "get-instance-strings" },
298 { 115, "get-restricted" },
299 { 116, "set-restricted" },
303 static struct tok ubik_req[] = {
304 { 10000, "vote-beacon" },
305 { 10001, "vote-debug-old" },
306 { 10002, "vote-sdebug-old" },
307 { 10003, "vote-getsyncsite" },
308 { 10004, "vote-debug" },
309 { 10005, "vote-sdebug" },
310 { 20000, "disk-begin" },
311 { 20001, "disk-commit" },
312 { 20002, "disk-lock" },
313 { 20003, "disk-write" },
314 { 20004, "disk-getversion" },
315 { 20005, "disk-getfile" },
316 { 20006, "disk-sendfile" },
317 { 20007, "disk-abort" },
318 { 20008, "disk-releaselocks" },
319 { 20009, "disk-truncate" },
320 { 20010, "disk-probe" },
321 { 20011, "disk-writev" },
322 { 20012, "disk-interfaceaddr" },
323 { 20013, "disk-setversion" },
327 #define VOTE_LOW 10000
328 #define VOTE_HIGH 10005
329 #define DISK_LOW 20000
330 #define DISK_HIGH 20013
332 static struct tok cb_types[] = {
339 static struct tok ubik_lock_types[] = {
346 static const char *voltype[] = { "read-write", "read-only", "backup" };
348 static struct tok afs_fs_errors[] = {
349 { 101, "salvage volume" },
350 { 102, "no such vnode" },
351 { 103, "no such volume" },
352 { 104, "volume exist" },
353 { 105, "no service" },
354 { 106, "volume offline" },
355 { 107, "voline online" },
357 { 109, "diskquota exceeded" },
358 { 110, "volume busy" },
359 { 111, "volume moved" },
360 { 112, "AFS IO error" },
361 { -100, "restarting fileserver" },
366 * Reasons for acknowledging a packet
369 static struct tok rx_ack_reasons[] = {
370 { 1, "ack requested" },
371 { 2, "duplicate packet" },
372 { 3, "out of sequence" },
373 { 4, "exceeds window" },
374 { 5, "no buffer space" },
376 { 7, "ping response" },
383 * Cache entries we keep around so we can figure out the RX opcode
384 * numbers for replies. This allows us to make sense of RX reply packets.
387 struct rx_cache_entry {
388 u_int32_t callnum; /* Call number (net order) */
389 struct in_addr client; /* client IP address (net order) */
390 struct in_addr server; /* server IP address (net order) */
391 int dport; /* server port (host order) */
392 u_short serviceId; /* Service identifier (net order) */
393 u_int32_t opcode; /* RX opcode (host order) */
396 #define RX_CACHE_SIZE 64
398 static struct rx_cache_entry rx_cache[RX_CACHE_SIZE];
400 static int rx_cache_next = 0;
401 static int rx_cache_hint = 0;
402 static void rx_cache_insert(const u_char *, const struct ip *, int);
403 static int rx_cache_find(const struct rx_header *, const struct ip *,
406 static void fs_print(const u_char *, int);
407 static void fs_reply_print(const u_char *, int, int32_t);
408 static void acl_print(u_char *, int, u_char *);
409 static void cb_print(const u_char *, int);
410 static void cb_reply_print(const u_char *, int, int32_t);
411 static void prot_print(const u_char *, int);
412 static void prot_reply_print(const u_char *, int, int32_t);
413 static void vldb_print(const u_char *, int);
414 static void vldb_reply_print(const u_char *, int, int32_t);
415 static void kauth_print(const u_char *, int);
416 static void kauth_reply_print(const u_char *, int, int32_t);
417 static void vol_print(const u_char *, int);
418 static void vol_reply_print(const u_char *, int, int32_t);
419 static void bos_print(const u_char *, int);
420 static void bos_reply_print(const u_char *, int, int32_t);
421 static void ubik_print(const u_char *);
422 static void ubik_reply_print(const u_char *, int, int32_t);
424 static void rx_ack_print(const u_char *, int);
426 static int is_ubik(u_int32_t);
429 * Handle the rx-level packet. See if we know what port it's going to so
430 * we can peek at the afs call inside
434 rx_print(register const u_char *bp, int length, int sport, int dport,
437 register struct rx_header *rxh;
441 if (snapend - bp < (int)sizeof (struct rx_header)) {
442 printf(" [|rx] (%d)", length);
446 rxh = (struct rx_header *) bp;
448 printf(" rx %s", tok2str(rx_types, "type %d", rxh->type));
454 printf(" cid %08x call# %d",
455 (int) EXTRACT_32BITS(&rxh->cid),
456 (int) EXTRACT_32BITS(&rxh->callNumber));
458 printf(" seq %d ser %d",
459 (int) EXTRACT_32BITS(&rxh->seq),
460 (int) EXTRACT_32BITS(&rxh->serial));
463 printf(" secindex %d serviceid %hu",
464 (int) rxh->securityIndex,
465 EXTRACT_16BITS(&rxh->serviceId));
468 for (i = 0; i < NUM_RX_FLAGS; i++) {
469 if (rxh->flags & rx_flags[i].flag &&
470 (!rx_flags[i].packetType ||
471 rxh->type == rx_flags[i].packetType)) {
478 printf("<%s>", rx_flags[i].s);
484 * Try to handle AFS calls that we know about. Check the destination
485 * port and make sure it's a data packet. Also, make sure the
486 * seq number is 1 (because otherwise it's a continuation packet,
487 * and we can't interpret that). Also, seems that reply packets
488 * do not have the client-init flag set, so we check for that
492 if (rxh->type == RX_PACKET_TYPE_DATA &&
493 EXTRACT_32BITS(&rxh->seq) == 1 &&
494 rxh->flags & RX_CLIENT_INITIATED) {
497 * Insert this call into the call cache table, so we
498 * have a chance to print out replies
501 rx_cache_insert(bp, (const struct ip *) bp2, dport);
504 case FS_RX_PORT: /* AFS file service */
505 fs_print(bp, length);
507 case CB_RX_PORT: /* AFS callback service */
508 cb_print(bp, length);
510 case PROT_RX_PORT: /* AFS protection service */
511 prot_print(bp, length);
513 case VLDB_RX_PORT: /* AFS VLDB service */
514 vldb_print(bp, length);
516 case KAUTH_RX_PORT: /* AFS Kerberos auth service */
517 kauth_print(bp, length);
519 case VOL_RX_PORT: /* AFS Volume service */
520 vol_print(bp, length);
522 case BOS_RX_PORT: /* AFS BOS service */
523 bos_print(bp, length);
530 * If it's a reply (client-init is _not_ set, but seq is one)
531 * then look it up in the cache. If we find it, call the reply
532 * printing functions Note that we handle abort packets here,
533 * because printing out the return code can be useful at times.
536 } else if (((rxh->type == RX_PACKET_TYPE_DATA &&
537 EXTRACT_32BITS(&rxh->seq) == 1) ||
538 rxh->type == RX_PACKET_TYPE_ABORT) &&
539 (rxh->flags & RX_CLIENT_INITIATED) == 0 &&
540 rx_cache_find(rxh, (const struct ip *) bp2,
544 case FS_RX_PORT: /* AFS file service */
545 fs_reply_print(bp, length, opcode);
547 case CB_RX_PORT: /* AFS callback service */
548 cb_reply_print(bp, length, opcode);
550 case PROT_RX_PORT: /* AFS PT service */
551 prot_reply_print(bp, length, opcode);
553 case VLDB_RX_PORT: /* AFS VLDB service */
554 vldb_reply_print(bp, length, opcode);
556 case KAUTH_RX_PORT: /* AFS Kerberos auth service */
557 kauth_reply_print(bp, length, opcode);
559 case VOL_RX_PORT: /* AFS Volume service */
560 vol_reply_print(bp, length, opcode);
562 case BOS_RX_PORT: /* AFS BOS service */
563 bos_reply_print(bp, length, opcode);
570 * If it's an RX ack packet, then use the appropriate ack decoding
571 * function (there isn't any service-specific information in the
572 * ack packet, so we can use one for all AFS services)
575 } else if (rxh->type == RX_PACKET_TYPE_ACK)
576 rx_ack_print(bp, length);
579 printf(" (%d)", length);
583 * Insert an entry into the cache. Taken from print-nfs.c
587 rx_cache_insert(const u_char *bp, const struct ip *ip, int dport)
589 struct rx_cache_entry *rxent;
590 const struct rx_header *rxh = (const struct rx_header *) bp;
592 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t)))
595 rxent = &rx_cache[rx_cache_next];
597 if (++rx_cache_next >= RX_CACHE_SIZE)
600 rxent->callnum = rxh->callNumber;
601 rxent->client = ip->ip_src;
602 rxent->server = ip->ip_dst;
603 rxent->dport = dport;
604 rxent->serviceId = rxh->serviceId;
605 rxent->opcode = EXTRACT_32BITS(bp + sizeof(struct rx_header));
609 * Lookup an entry in the cache. Also taken from print-nfs.c
611 * Note that because this is a reply, we're looking at the _source_
616 rx_cache_find(const struct rx_header *rxh, const struct ip *ip, int sport,
620 struct rx_cache_entry *rxent;
621 u_int32_t clip = ip->ip_dst.s_addr;
622 u_int32_t sip = ip->ip_src.s_addr;
624 /* Start the search where we last left off */
628 rxent = &rx_cache[i];
629 if (rxent->callnum == rxh->callNumber &&
630 rxent->client.s_addr == clip &&
631 rxent->server.s_addr == sip &&
632 rxent->serviceId == rxh->serviceId &&
633 rxent->dport == sport) {
635 /* We got a match! */
638 *opcode = rxent->opcode;
641 if (++i > RX_CACHE_SIZE)
643 } while (i != rx_cache_hint);
645 /* Our search failed */
650 * These extrememly grody macros handle the printing of various AFS stuff.
653 #define FIDOUT() { unsigned long n1, n2, n3; \
654 TCHECK2(bp[0], sizeof(int32_t) * 3); \
655 n1 = EXTRACT_32BITS(bp); \
656 bp += sizeof(int32_t); \
657 n2 = EXTRACT_32BITS(bp); \
658 bp += sizeof(int32_t); \
659 n3 = EXTRACT_32BITS(bp); \
660 bp += sizeof(int32_t); \
661 printf(" fid %d/%d/%d", (int) n1, (int) n2, (int) n3); \
664 #define STROUT(MAX) { unsigned int i; \
665 TCHECK2(bp[0], sizeof(int32_t)); \
666 i = EXTRACT_32BITS(bp); \
669 bp += sizeof(int32_t); \
671 if (fn_printn(bp, i, snapend)) \
674 bp += ((i + sizeof(int32_t) - 1) / sizeof(int32_t)) * sizeof(int32_t); \
677 #define INTOUT() { int i; \
678 TCHECK2(bp[0], sizeof(int32_t)); \
679 i = (int) EXTRACT_32BITS(bp); \
680 bp += sizeof(int32_t); \
684 #define UINTOUT() { unsigned long i; \
685 TCHECK2(bp[0], sizeof(int32_t)); \
686 i = EXTRACT_32BITS(bp); \
687 bp += sizeof(int32_t); \
691 #define DATEOUT() { time_t t; struct tm *tm; char str[256]; \
692 TCHECK2(bp[0], sizeof(int32_t)); \
693 t = (time_t) EXTRACT_32BITS(bp); \
694 bp += sizeof(int32_t); \
695 tm = localtime(&t); \
696 strftime(str, 256, "%Y/%m/%d %T", tm); \
697 printf(" %s", str); \
700 #define STOREATTROUT() { unsigned long mask, i; \
701 TCHECK2(bp[0], (sizeof(int32_t)*6)); \
702 mask = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
703 if (mask) printf (" StoreStatus"); \
704 if (mask & 1) { printf(" date"); DATEOUT(); } \
705 else bp += sizeof(int32_t); \
706 i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
707 if (mask & 2) printf(" owner %lu", i); \
708 i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
709 if (mask & 4) printf(" group %lu", i); \
710 i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
711 if (mask & 8) printf(" mode %lo", i & 07777); \
712 i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \
713 if (mask & 16) printf(" segsize %lu", i); \
714 /* undocumented in 3.3 docu */ \
715 if (mask & 1024) printf(" fsync"); \
718 #define UBIK_VERSIONOUT() {int32_t epoch; int32_t counter; \
719 TCHECK2(bp[0], sizeof(int32_t) * 2); \
720 epoch = EXTRACT_32BITS(bp); \
721 bp += sizeof(int32_t); \
722 counter = EXTRACT_32BITS(bp); \
723 bp += sizeof(int32_t); \
724 printf(" %d.%d", epoch, counter); \
727 #define AFSUUIDOUT() {u_int32_t temp; int i; \
728 TCHECK2(bp[0], 11*sizeof(u_int32_t)); \
729 temp = EXTRACT_32BITS(bp); \
730 bp += sizeof(u_int32_t); \
731 printf(" %08x", temp); \
732 temp = EXTRACT_32BITS(bp); \
733 bp += sizeof(u_int32_t); \
734 printf("%04x", temp); \
735 temp = EXTRACT_32BITS(bp); \
736 bp += sizeof(u_int32_t); \
737 printf("%04x", temp); \
738 for (i = 0; i < 8; i++) { \
739 temp = EXTRACT_32BITS(bp); \
740 bp += sizeof(u_int32_t); \
741 printf("%02x", (unsigned char) temp); \
746 * This is the sickest one of all
749 #define VECOUT(MAX) { u_char *sp; \
750 u_char s[AFSNAMEMAX]; \
752 if ((MAX) + 1 > sizeof(s)) \
754 TCHECK2(bp[0], (MAX) * sizeof(int32_t)); \
756 for (k = 0; k < (MAX); k++) { \
757 *sp++ = (u_char) EXTRACT_32BITS(bp); \
758 bp += sizeof(int32_t); \
767 * Handle calls to the AFS file service (fs)
771 fs_print(register const u_char *bp, int length)
776 if (length <= (int)sizeof(struct rx_header))
779 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
784 * Print out the afs call we're invoking. The table used here was
785 * gleaned from fsint/afsint.xg
788 fs_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
790 printf(" fs call %s", tok2str(fs_req, "op#%d", fs_op));
793 * Print out arguments to some of the AFS calls. This stuff is
797 bp += sizeof(struct rx_header) + 4;
800 * Sigh. This is gross. Ritchie forgive me.
804 case 130: /* Fetch data */
811 case 131: /* Fetch ACL */
812 case 132: /* Fetch Status */
813 case 143: /* Old set lock */
814 case 144: /* Old extend lock */
815 case 145: /* Old release lock */
816 case 156: /* Set lock */
817 case 157: /* Extend lock */
818 case 158: /* Release lock */
821 case 135: /* Store status */
825 case 133: /* Store data */
835 case 134: /* Store ACL */
837 char a[AFSOPAQUEMAX+1];
840 i = EXTRACT_32BITS(bp);
841 bp += sizeof(int32_t);
843 i = min(AFSOPAQUEMAX, i);
844 strncpy(a, (char *) bp, i);
846 acl_print((u_char *) a, sizeof(a), (u_char *) a + i);
849 case 137: /* Create file */
850 case 141: /* MakeDir */
855 case 136: /* Remove file */
856 case 142: /* Remove directory */
860 case 138: /* Rename file */
868 case 139: /* Symlink */
880 case 148: /* Get volume info */
883 case 149: /* Get volume stats */
884 case 150: /* Set volume stats */
888 case 154: /* New get volume info */
892 case 155: /* Bulk stat */
896 j = EXTRACT_32BITS(bp);
897 bp += sizeof(int32_t);
899 for (i = 0; i < j; i++) {
918 * Handle replies to the AFS file service
922 fs_reply_print(register const u_char *bp, int length, int32_t opcode)
925 struct rx_header *rxh;
927 if (length <= (int)sizeof(struct rx_header))
930 rxh = (struct rx_header *) bp;
933 * Print out the afs call we're invoking. The table used here was
934 * gleaned from fsint/afsint.xg
937 printf(" fs reply %s", tok2str(fs_req, "op#%d", opcode));
939 bp += sizeof(struct rx_header);
942 * If it was a data packet, interpret the response
945 if (rxh->type == RX_PACKET_TYPE_DATA) {
947 case 131: /* Fetch ACL */
949 char a[AFSOPAQUEMAX+1];
951 i = EXTRACT_32BITS(bp);
952 bp += sizeof(int32_t);
954 i = min(AFSOPAQUEMAX, i);
955 strncpy(a, (char *) bp, i);
957 acl_print((u_char *) a, sizeof(a), (u_char *) a + i);
960 case 137: /* Create file */
961 case 141: /* MakeDir */
965 case 151: /* Get root volume */
966 printf(" root volume");
969 case 153: /* Get time */
975 } else if (rxh->type == RX_PACKET_TYPE_ABORT) {
979 * Otherwise, just print out the return code
981 TCHECK2(bp[0], sizeof(int32_t));
982 i = (int) EXTRACT_32BITS(bp);
983 bp += sizeof(int32_t);
985 printf(" error %s", tok2str(afs_fs_errors, "#%d", i));
987 printf(" strange fs reply of type %d", rxh->type);
997 * Print out an AFS ACL string. An AFS ACL is a string that has the
1000 * <positive> <negative>
1004 * "positive" and "negative" are integers which contain the number of
1005 * positive and negative ACL's in the string. The uid/aclbits pair are
1006 * ASCII strings containing the UID/PTS record and and a ascii number
1007 * representing a logical OR of all the ACL permission bits
1011 acl_print(u_char *s, int maxsize, u_char *end)
1017 if ((user = (char *)malloc(maxsize)) == NULL)
1020 if (sscanf((char *) s, "%d %d\n%n", &pos, &neg, &n) != 2)
1029 * This wacky order preserves the order used by the "fs" command
1032 #define ACLOUT(acl) \
1033 if (acl & PRSFS_READ) \
1035 if (acl & PRSFS_LOOKUP) \
1037 if (acl & PRSFS_INSERT) \
1039 if (acl & PRSFS_DELETE) \
1041 if (acl & PRSFS_WRITE) \
1043 if (acl & PRSFS_LOCK) \
1045 if (acl & PRSFS_ADMINISTER) \
1048 for (i = 0; i < pos; i++) {
1049 if (sscanf((char *) s, "%s %d\n%n", user, &acl, &n) != 2)
1053 fn_print((u_char *)user, NULL);
1061 for (i = 0; i < neg; i++) {
1062 if (sscanf((char *) s, "%s %d\n%n", user, &acl, &n) != 2)
1066 fn_print((u_char *)user, NULL);
1082 * Handle calls to the AFS callback service
1086 cb_print(register const u_char *bp, int length)
1091 if (length <= (int)sizeof(struct rx_header))
1094 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1099 * Print out the afs call we're invoking. The table used here was
1100 * gleaned from fsint/afscbint.xg
1103 cb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1105 printf(" cb call %s", tok2str(cb_req, "op#%d", cb_op));
1107 bp += sizeof(struct rx_header) + 4;
1110 * Print out the afs call we're invoking. The table used here was
1111 * gleaned from fsint/afscbint.xg
1115 case 204: /* Callback */
1119 j = EXTRACT_32BITS(bp);
1120 bp += sizeof(int32_t);
1122 for (i = 0; i < j; i++) {
1131 j = EXTRACT_32BITS(bp);
1132 bp += sizeof(int32_t);
1137 for (i = 0; i < j; i++) {
1143 t = EXTRACT_32BITS(bp);
1144 bp += sizeof(int32_t);
1145 tok2str(cb_types, "type %d", t);
1164 * Handle replies to the AFS Callback Service
1168 cb_reply_print(register const u_char *bp, int length, int32_t opcode)
1170 struct rx_header *rxh;
1172 if (length <= (int)sizeof(struct rx_header))
1175 rxh = (struct rx_header *) bp;
1178 * Print out the afs call we're invoking. The table used here was
1179 * gleaned from fsint/afscbint.xg
1182 printf(" cb reply %s", tok2str(cb_req, "op#%d", opcode));
1184 bp += sizeof(struct rx_header);
1187 * If it was a data packet, interpret the response.
1190 if (rxh->type == RX_PACKET_TYPE_DATA)
1192 case 213: /* InitCallBackState3 */
1200 * Otherwise, just print out the return code
1213 * Handle calls to the AFS protection database server
1217 prot_print(register const u_char *bp, int length)
1222 if (length <= (int)sizeof(struct rx_header))
1225 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1230 * Print out the afs call we're invoking. The table used here was
1231 * gleaned from ptserver/ptint.xg
1234 pt_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1238 if (is_ubik(pt_op)) {
1243 printf(" call %s", tok2str(pt_req, "op#%d", pt_op));
1246 * Decode some of the arguments to the PT calls
1249 bp += sizeof(struct rx_header) + 4;
1252 case 500: /* I New User */
1259 case 501: /* Where is it */
1260 case 506: /* Delete */
1261 case 508: /* Get CPS */
1262 case 512: /* List entry */
1263 case 514: /* List elements */
1264 case 517: /* List owned */
1265 case 518: /* Get CPS2 */
1266 case 519: /* Get host CPS */
1270 case 502: /* Dump entry */
1274 case 503: /* Add to group */
1275 case 507: /* Remove from group */
1276 case 515: /* Is a member of? */
1282 case 504: /* Name to ID */
1286 j = EXTRACT_32BITS(bp);
1287 bp += sizeof(int32_t);
1290 * Who designed this chicken-shit protocol?
1292 * Each character is stored as a 32-bit
1296 for (i = 0; i < j; i++) {
1303 case 505: /* Id to name */
1308 i = EXTRACT_32BITS(bp);
1309 bp += sizeof(int32_t);
1310 for (j = 0; j < i; j++)
1316 case 509: /* New entry */
1323 case 511: /* Set max */
1329 case 513: /* Change entry */
1338 case 520: /* Update entry */
1355 * Handle replies to the AFS protection service
1359 prot_reply_print(register const u_char *bp, int length, int32_t opcode)
1361 struct rx_header *rxh;
1364 if (length < (int)sizeof(struct rx_header))
1367 rxh = (struct rx_header *) bp;
1370 * Print out the afs call we're invoking. The table used here was
1371 * gleaned from ptserver/ptint.xg. Check to see if it's a
1372 * Ubik call, however.
1377 if (is_ubik(opcode)) {
1378 ubik_reply_print(bp, length, opcode);
1382 printf(" reply %s", tok2str(pt_req, "op#%d", opcode));
1384 bp += sizeof(struct rx_header);
1387 * If it was a data packet, interpret the response
1390 if (rxh->type == RX_PACKET_TYPE_DATA)
1392 case 504: /* Name to ID */
1397 i = EXTRACT_32BITS(bp);
1398 bp += sizeof(int32_t);
1399 for (j = 0; j < i; j++)
1405 case 505: /* ID to name */
1409 j = EXTRACT_32BITS(bp);
1410 bp += sizeof(int32_t);
1413 * Who designed this chicken-shit protocol?
1415 * Each character is stored as a 32-bit
1419 for (i = 0; i < j; i++) {
1426 case 508: /* Get CPS */
1427 case 514: /* List elements */
1428 case 517: /* List owned */
1429 case 518: /* Get CPS2 */
1430 case 519: /* Get host CPS */
1434 j = EXTRACT_32BITS(bp);
1435 bp += sizeof(int32_t);
1436 for (i = 0; i < j; i++) {
1443 case 510: /* List max */
1454 * Otherwise, just print out the return code
1467 * Handle calls to the AFS volume location database service
1471 vldb_print(register const u_char *bp, int length)
1476 if (length <= (int)sizeof(struct rx_header))
1479 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1484 * Print out the afs call we're invoking. The table used here was
1485 * gleaned from vlserver/vldbint.xg
1488 vldb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1492 if (is_ubik(vldb_op)) {
1496 printf(" call %s", tok2str(vldb_req, "op#%d", vldb_op));
1499 * Decode some of the arguments to the VLDB calls
1502 bp += sizeof(struct rx_header) + 4;
1505 case 501: /* Create new volume */
1506 case 517: /* Create entry N */
1509 case 502: /* Delete entry */
1510 case 503: /* Get entry by ID */
1511 case 507: /* Update entry */
1512 case 508: /* Set lock */
1513 case 509: /* Release lock */
1514 case 518: /* Get entry by ID N */
1517 TCHECK2(bp[0], sizeof(int32_t));
1518 i = EXTRACT_32BITS(bp);
1519 bp += sizeof(int32_t);
1521 printf(" type %s", voltype[i]);
1523 case 504: /* Get entry by name */
1524 case 519: /* Get entry by name N */
1525 case 524: /* Update entry by name */
1526 case 527: /* Get entry by name U */
1529 case 505: /* Get new vol id */
1533 case 506: /* Replace entry */
1534 case 520: /* Replace entry N */
1537 TCHECK2(bp[0], sizeof(int32_t));
1538 i = EXTRACT_32BITS(bp);
1539 bp += sizeof(int32_t);
1541 printf(" type %s", voltype[i]);
1544 case 510: /* List entry */
1545 case 521: /* List entry N */
1560 * Handle replies to the AFS volume location database service
1564 vldb_reply_print(register const u_char *bp, int length, int32_t opcode)
1566 struct rx_header *rxh;
1569 if (length < (int)sizeof(struct rx_header))
1572 rxh = (struct rx_header *) bp;
1575 * Print out the afs call we're invoking. The table used here was
1576 * gleaned from vlserver/vldbint.xg. Check to see if it's a
1577 * Ubik call, however.
1582 if (is_ubik(opcode)) {
1583 ubik_reply_print(bp, length, opcode);
1587 printf(" reply %s", tok2str(vldb_req, "op#%d", opcode));
1589 bp += sizeof(struct rx_header);
1592 * If it was a data packet, interpret the response
1595 if (rxh->type == RX_PACKET_TYPE_DATA)
1597 case 510: /* List entry */
1600 printf(" nextindex");
1602 case 503: /* Get entry by id */
1603 case 504: /* Get entry by name */
1604 { unsigned long nservers, j;
1606 TCHECK2(bp[0], sizeof(int32_t));
1607 bp += sizeof(int32_t);
1608 printf(" numservers");
1609 TCHECK2(bp[0], sizeof(int32_t));
1610 nservers = EXTRACT_32BITS(bp);
1611 bp += sizeof(int32_t);
1612 printf(" %lu", nservers);
1614 for (i = 0; i < 8; i++) {
1615 TCHECK2(bp[0], sizeof(int32_t));
1618 intoa(((struct in_addr *) bp)->s_addr));
1619 bp += sizeof(int32_t);
1621 printf(" partitions");
1622 for (i = 0; i < 8; i++) {
1623 TCHECK2(bp[0], sizeof(int32_t));
1624 j = EXTRACT_32BITS(bp);
1625 if (i < nservers && j <= 26)
1626 printf(" %c", 'a' + (int)j);
1627 else if (i < nservers)
1629 bp += sizeof(int32_t);
1631 TCHECK2(bp[0], 8 * sizeof(int32_t));
1632 bp += 8 * sizeof(int32_t);
1641 case 505: /* Get new volume ID */
1645 case 521: /* List entry */
1646 case 529: /* List entry U */
1649 printf(" nextindex");
1651 case 518: /* Get entry by ID N */
1652 case 519: /* Get entry by name N */
1653 { unsigned long nservers, j;
1655 printf(" numservers");
1656 TCHECK2(bp[0], sizeof(int32_t));
1657 nservers = EXTRACT_32BITS(bp);
1658 bp += sizeof(int32_t);
1659 printf(" %lu", nservers);
1661 for (i = 0; i < 13; i++) {
1662 TCHECK2(bp[0], sizeof(int32_t));
1665 intoa(((struct in_addr *) bp)->s_addr));
1666 bp += sizeof(int32_t);
1668 printf(" partitions");
1669 for (i = 0; i < 13; i++) {
1670 TCHECK2(bp[0], sizeof(int32_t));
1671 j = EXTRACT_32BITS(bp);
1672 if (i < nservers && j <= 26)
1673 printf(" %c", 'a' + (int)j);
1674 else if (i < nservers)
1676 bp += sizeof(int32_t);
1678 TCHECK2(bp[0], 13 * sizeof(int32_t));
1679 bp += 13 * sizeof(int32_t);
1688 case 526: /* Get entry by ID U */
1689 case 527: /* Get entry by name U */
1690 { unsigned long nservers, j;
1692 printf(" numservers");
1693 TCHECK2(bp[0], sizeof(int32_t));
1694 nservers = EXTRACT_32BITS(bp);
1695 bp += sizeof(int32_t);
1696 printf(" %lu", nservers);
1698 for (i = 0; i < 13; i++) {
1707 TCHECK2(bp[0], 4 * 13);
1709 printf(" partitions");
1710 for (i = 0; i < 13; i++) {
1711 TCHECK2(bp[0], sizeof(int32_t));
1712 j = EXTRACT_32BITS(bp);
1713 if (i < nservers && j <= 26)
1714 printf(" %c", 'a' + (int)j);
1715 else if (i < nservers)
1717 bp += sizeof(int32_t);
1719 TCHECK2(bp[0], 13 * sizeof(int32_t));
1720 bp += 13 * sizeof(int32_t);
1734 * Otherwise, just print out the return code
1747 * Handle calls to the AFS Kerberos Authentication service
1751 kauth_print(register const u_char *bp, int length)
1755 if (length <= (int)sizeof(struct rx_header))
1758 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1763 * Print out the afs call we're invoking. The table used here was
1764 * gleaned from kauth/kauth.rg
1767 kauth_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1771 if (is_ubik(kauth_op)) {
1777 printf(" call %s", tok2str(kauth_req, "op#%d", kauth_op));
1780 * Decode some of the arguments to the KA calls
1783 bp += sizeof(struct rx_header) + 4;
1786 case 1: /* Authenticate old */;
1787 case 21: /* Authenticate */
1788 case 22: /* Authenticate-V2 */
1789 case 2: /* Change PW */
1790 case 5: /* Set fields */
1791 case 6: /* Create user */
1792 case 7: /* Delete user */
1793 case 8: /* Get entry */
1794 case 14: /* Unlock */
1795 case 15: /* Lock status */
1796 printf(" principal");
1800 case 3: /* GetTicket-old */
1801 case 23: /* GetTicket */
1808 TCHECK2(bp[0], sizeof(int32_t));
1809 i = (int) EXTRACT_32BITS(bp);
1810 bp += sizeof(int32_t);
1813 printf(" principal");
1818 case 4: /* Set Password */
1819 printf(" principal");
1825 case 12: /* Get password */
1836 printf(" [|kauth]");
1840 * Handle replies to the AFS Kerberos Authentication Service
1844 kauth_reply_print(register const u_char *bp, int length, int32_t opcode)
1846 struct rx_header *rxh;
1848 if (length <= (int)sizeof(struct rx_header))
1851 rxh = (struct rx_header *) bp;
1854 * Print out the afs call we're invoking. The table used here was
1855 * gleaned from kauth/kauth.rg
1860 if (is_ubik(opcode)) {
1861 ubik_reply_print(bp, length, opcode);
1865 printf(" reply %s", tok2str(kauth_req, "op#%d", opcode));
1867 bp += sizeof(struct rx_header);
1870 * If it was a data packet, interpret the response.
1873 if (rxh->type == RX_PACKET_TYPE_DATA)
1874 /* Well, no, not really. Leave this for later */
1878 * Otherwise, just print out the return code
1887 printf(" [|kauth]");
1891 * Handle calls to the AFS Volume location service
1895 vol_print(register const u_char *bp, int length)
1899 if (length <= (int)sizeof(struct rx_header))
1902 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1907 * Print out the afs call we're invoking. The table used here was
1908 * gleaned from volser/volint.xg
1911 vol_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1913 printf(" vol call %s", tok2str(vol_req, "op#%d", vol_op));
1916 * Normally there would be a switch statement here to decode the
1917 * arguments to the AFS call, but since I don't have access to
1918 * an AFS server (yet) and I'm not an AFS admin, I can't
1919 * test any of these calls. Leave this blank for now.
1929 * Handle replies to the AFS Volume Service
1933 vol_reply_print(register const u_char *bp, int length, int32_t opcode)
1935 struct rx_header *rxh;
1937 if (length <= (int)sizeof(struct rx_header))
1940 rxh = (struct rx_header *) bp;
1943 * Print out the afs call we're invoking. The table used here was
1944 * gleaned from volser/volint.xg
1947 printf(" vol reply %s", tok2str(vol_req, "op#%d", opcode));
1949 bp += sizeof(struct rx_header);
1952 * If it was a data packet, interpret the response.
1955 if (rxh->type == RX_PACKET_TYPE_DATA)
1956 /* Well, no, not really. Leave this for later */
1960 * Otherwise, just print out the return code
1973 * Handle calls to the AFS BOS service
1977 bos_print(register const u_char *bp, int length)
1981 if (length <= (int)sizeof(struct rx_header))
1984 if (snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) {
1989 * Print out the afs call we're invoking. The table used here was
1990 * gleaned from bozo/bosint.xg
1993 bos_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
1995 printf(" bos call %s", tok2str(bos_req, "op#%d", bos_op));
1998 * Decode some of the arguments to the BOS calls
2001 bp += sizeof(struct rx_header) + 4;
2004 case 80: /* Create B node */
2007 printf(" instance");
2010 case 81: /* Delete B node */
2011 case 83: /* Get status */
2012 case 85: /* Get instance info */
2013 case 87: /* Add super user */
2014 case 88: /* Delete super user */
2015 case 93: /* Set cell name */
2016 case 96: /* Add cell host */
2017 case 97: /* Delete cell host */
2018 case 104: /* Restart */
2019 case 106: /* Uninstall */
2020 case 108: /* Exec */
2021 case 112: /* Getlog */
2022 case 114: /* Get instance strings */
2025 case 82: /* Set status */
2026 case 98: /* Set T status */
2031 case 86: /* Get instance parm */
2036 case 84: /* Enumerate instance */
2037 case 89: /* List super users */
2038 case 90: /* List keys */
2039 case 91: /* Add key */
2040 case 92: /* Delete key */
2041 case 95: /* Get cell host */
2044 case 105: /* Install */
2064 * Handle replies to the AFS BOS Service
2068 bos_reply_print(register const u_char *bp, int length, int32_t opcode)
2070 struct rx_header *rxh;
2072 if (length <= (int)sizeof(struct rx_header))
2075 rxh = (struct rx_header *) bp;
2078 * Print out the afs call we're invoking. The table used here was
2079 * gleaned from volser/volint.xg
2082 printf(" bos reply %s", tok2str(bos_req, "op#%d", opcode));
2084 bp += sizeof(struct rx_header);
2087 * If it was a data packet, interpret the response.
2090 if (rxh->type == RX_PACKET_TYPE_DATA)
2091 /* Well, no, not really. Leave this for later */
2095 * Otherwise, just print out the return code
2108 * Check to see if this is a Ubik opcode.
2112 is_ubik(u_int32_t opcode)
2114 if ((opcode >= VOTE_LOW && opcode <= VOTE_HIGH) ||
2115 (opcode >= DISK_LOW && opcode <= DISK_HIGH))
2122 * Handle Ubik opcodes to any one of the replicated database services
2126 ubik_print(register const u_char *bp)
2132 * Print out the afs call we're invoking. The table used here was
2133 * gleaned from ubik/ubik_int.xg
2136 ubik_op = EXTRACT_32BITS(bp + sizeof(struct rx_header));
2138 printf(" ubik call %s", tok2str(ubik_req, "op#%d", ubik_op));
2141 * Decode some of the arguments to the Ubik calls
2144 bp += sizeof(struct rx_header) + 4;
2147 case 10000: /* Beacon */
2149 temp = EXTRACT_32BITS(bp);
2150 bp += sizeof(int32_t);
2151 printf(" syncsite %s", temp ? "yes" : "no");
2152 printf(" votestart");
2154 printf(" dbversion");
2159 case 10003: /* Get sync site */
2163 case 20000: /* Begin */
2164 case 20001: /* Commit */
2165 case 20007: /* Abort */
2166 case 20008: /* Release locks */
2167 case 20010: /* Writev */
2171 case 20002: /* Lock */
2180 temp = EXTRACT_32BITS(bp);
2181 bp += sizeof(int32_t);
2182 tok2str(ubik_lock_types, "type %d", temp);
2184 case 20003: /* Write */
2192 case 20005: /* Get file */
2196 case 20006: /* Send file */
2201 printf(" dbversion");
2204 case 20009: /* Truncate */
2212 case 20012: /* Set version */
2215 printf(" oldversion");
2217 printf(" newversion");
2231 * Handle Ubik replies to any one of the replicated database services
2235 ubik_reply_print(register const u_char *bp, int length, int32_t opcode)
2237 struct rx_header *rxh;
2239 if (length < (int)sizeof(struct rx_header))
2242 rxh = (struct rx_header *) bp;
2245 * Print out the ubik call we're invoking. This table was gleaned
2246 * from ubik/ubik_int.xg
2249 printf(" ubik reply %s", tok2str(ubik_req, "op#%d", opcode));
2251 bp += sizeof(struct rx_header);
2254 * If it was a data packet, print out the arguments to the Ubik calls
2257 if (rxh->type == RX_PACKET_TYPE_DATA)
2259 case 10000: /* Beacon */
2262 case 20004: /* Get version */
2263 printf(" dbversion");
2271 * Otherwise, print out "yes" it it was a beacon packet (because
2272 * that's how yes votes are returned, go figure), otherwise
2273 * just print out the error code.
2278 case 10000: /* Beacon */
2279 printf(" vote yes until");
2294 * Handle RX ACK packets.
2298 rx_ack_print(register const u_char *bp, int length)
2300 struct rx_ackPacket *rxa;
2303 if (length < (int)sizeof(struct rx_header))
2306 bp += sizeof(struct rx_header);
2309 * This may seem a little odd .... the rx_ackPacket structure
2310 * contains an array of individual packet acknowledgements
2311 * (used for selective ack/nack), but since it's variable in size,
2312 * we don't want to truncate based on the size of the whole
2313 * rx_ackPacket structure.
2316 TCHECK2(bp[0], sizeof(struct rx_ackPacket) - RX_MAXACKS);
2318 rxa = (struct rx_ackPacket *) bp;
2319 bp += (sizeof(struct rx_ackPacket) - RX_MAXACKS);
2322 * Print out a few useful things from the ack packet structure
2326 printf(" bufspace %d maxskew %d",
2327 (int) EXTRACT_16BITS(&rxa->bufferSpace),
2328 (int) EXTRACT_16BITS(&rxa->maxSkew));
2330 printf(" first %d serial %d reason %s",
2331 EXTRACT_32BITS(&rxa->firstPacket), EXTRACT_32BITS(&rxa->serial),
2332 tok2str(rx_ack_reasons, "#%d", (int) rxa->reason));
2335 * Okay, now we print out the ack array. The way _this_ works
2336 * is that we start at "first", and step through the ack array.
2337 * If we have a contiguous range of acks/nacks, try to
2338 * collapse them into a range.
2340 * If you're really clever, you might have noticed that this
2341 * doesn't seem quite correct. Specifically, due to structure
2342 * padding, sizeof(struct rx_ackPacket) - RX_MAXACKS won't actually
2343 * yield the start of the ack array (because RX_MAXACKS is 255
2344 * and the structure will likely get padded to a 2 or 4 byte
2345 * boundary). However, this is the way it's implemented inside
2346 * of AFS - the start of the extra fields are at
2347 * sizeof(struct rx_ackPacket) - RX_MAXACKS + nAcks, which _isn't_
2348 * the exact start of the ack array. Sigh. That's why we aren't
2349 * using bp, but instead use rxa->acks[]. But nAcks gets added
2350 * to bp after this, so bp ends up at the right spot. Go figure.
2353 if (rxa->nAcks != 0) {
2355 TCHECK2(bp[0], rxa->nAcks);
2358 * Sigh, this is gross, but it seems to work to collapse
2362 for (i = 0, start = last = -2; i < rxa->nAcks; i++)
2363 if (rxa->acks[i] == RX_ACK_TYPE_ACK) {
2366 * I figured this deserved _some_ explanation.
2367 * First, print "acked" and the packet seq
2368 * number if this is the first time we've
2369 * seen an acked packet.
2374 rxa->firstPacket + i);
2379 * Otherwise, if the there is a skip in
2380 * the range (such as an nacked packet in
2381 * the middle of some acked packets),
2382 * then print the current packet number
2383 * seperated from the last number by
2387 else if (last != i - 1) {
2388 printf(",%d", rxa->firstPacket + i);
2393 * We always set last to the value of
2394 * the last ack we saw. Conversely, start
2395 * is set to the value of the first ack
2396 * we saw in a range.
2402 * Okay, this bit a code gets executed when
2403 * we hit a nack ... in _this_ case we
2404 * want to print out the range of packets
2405 * that were acked, so we need to print
2406 * the _previous_ packet number seperated
2407 * from the first by a dash (-). Since we
2408 * already printed the first packet above,
2409 * just print the final packet. Don't
2410 * do this if there will be a single-length
2413 } else if (last == i - 1 && start != last)
2414 printf("-%d", rxa->firstPacket + i - 1);
2417 * So, what's going on here? We ran off the end of the
2418 * ack list, and if we got a range we need to finish it up.
2419 * So we need to determine if the last packet in the list
2420 * was an ack (if so, then last will be set to it) and
2421 * we need to see if the last range didn't start with the
2422 * last packet (because if it _did_, then that would mean
2423 * that the packet number has already been printed and
2424 * we don't need to print it again).
2427 if (last == i - 1 && start != last)
2428 printf("-%d", rxa->firstPacket + i - 1);
2431 * Same as above, just without comments
2434 for (i = 0, start = last = -2; i < rxa->nAcks; i++)
2435 if (rxa->acks[i] == RX_ACK_TYPE_NACK) {
2437 printf(" nacked %d",
2438 rxa->firstPacket + i);
2440 } else if (last != i - 1) {
2441 printf(",%d", rxa->firstPacket + i);
2445 } else if (last == i - 1 && start != last)
2446 printf("-%d", rxa->firstPacket + i - 1);
2448 if (last == i - 1 && start != last)
2449 printf("-%d", rxa->firstPacket + i - 1);
2456 * These are optional fields; depending on your version of AFS,
2457 * you may or may not see them
2460 #define TRUNCRET(n) if (snapend - bp + 1 <= n) return;
2476 printf(" maxpackets");