print-rx.c revision 356341
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 77struct 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 114struct 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 133static 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 147static 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 161static 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 206static 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 228static 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 255static 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 293static 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 315static 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 351static 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 392static 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 423static const struct tok cb_types[] = { 424 { 1, "exclusive" }, 425 { 2, "shared" }, 426 { 3, "dropped" }, 427 { 0, NULL }, 428}; 429 430static const struct tok ubik_lock_types[] = { 431 { 1, "read" }, 432 { 2, "write" }, 433 { 3, "wait" }, 434 { 0, NULL }, 435}; 436 437static const char *voltype[] = { "read-write", "read-only", "backup" }; 438 439static 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 460static 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 478struct 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 489static struct rx_cache_entry rx_cache[RX_CACHE_SIZE]; 490 491static int rx_cache_next = 0; 492static int rx_cache_hint = 0; 493static void rx_cache_insert(netdissect_options *, const u_char *, const struct ip *, int); 494static int rx_cache_find(const struct rx_header *, const struct ip *, 495 int, int32_t *); 496 497static void fs_print(netdissect_options *, const u_char *, int); 498static void fs_reply_print(netdissect_options *, const u_char *, int, int32_t); 499static void acl_print(netdissect_options *, u_char *, int, u_char *); 500static void cb_print(netdissect_options *, const u_char *, int); 501static void cb_reply_print(netdissect_options *, const u_char *, int, int32_t); 502static void prot_print(netdissect_options *, const u_char *, int); 503static void prot_reply_print(netdissect_options *, const u_char *, int, int32_t); 504static void vldb_print(netdissect_options *, const u_char *, int); 505static void vldb_reply_print(netdissect_options *, const u_char *, int, int32_t); 506static void kauth_print(netdissect_options *, const u_char *, int); 507static void kauth_reply_print(netdissect_options *, const u_char *, int, int32_t); 508static void vol_print(netdissect_options *, const u_char *, int); 509static void vol_reply_print(netdissect_options *, const u_char *, int, int32_t); 510static void bos_print(netdissect_options *, const u_char *, int); 511static void bos_reply_print(netdissect_options *, const u_char *, int, int32_t); 512static void ubik_print(netdissect_options *, const u_char *); 513static void ubik_reply_print(netdissect_options *, const u_char *, int, int32_t); 514 515static void rx_ack_print(netdissect_options *, const u_char *, int); 516 517static 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 524void 525rx_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 678static void 679rx_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_16BITS(&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 708static int 709rx_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_16BITS(&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 884static void 885fs_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 break; 1023 } 1024 case 65537: /* Fetch data 64 */ 1025 FIDOUT(); 1026 ND_PRINT((ndo, " offset")); 1027 UINT64OUT(); 1028 ND_PRINT((ndo, " length")); 1029 UINT64OUT(); 1030 break; 1031 case 65538: /* Store data 64 */ 1032 FIDOUT(); 1033 STOREATTROUT(); 1034 ND_PRINT((ndo, " offset")); 1035 UINT64OUT(); 1036 ND_PRINT((ndo, " length")); 1037 UINT64OUT(); 1038 ND_PRINT((ndo, " flen")); 1039 UINT64OUT(); 1040 break; 1041 case 65541: /* CallBack rx conn address */ 1042 ND_PRINT((ndo, " addr")); 1043 UINTOUT(); 1044 default: 1045 ; 1046 } 1047 1048 return; 1049 1050trunc: 1051 ND_PRINT((ndo, " [|fs]")); 1052} 1053 1054/* 1055 * Handle replies to the AFS file service 1056 */ 1057 1058static void 1059fs_reply_print(netdissect_options *ndo, 1060 register const u_char *bp, int length, int32_t opcode) 1061{ 1062 unsigned long i; 1063 const struct rx_header *rxh; 1064 1065 if (length <= (int)sizeof(struct rx_header)) 1066 return; 1067 1068 rxh = (const struct rx_header *) bp; 1069 1070 /* 1071 * Print out the afs call we're invoking. The table used here was 1072 * gleaned from fsint/afsint.xg 1073 */ 1074 1075 ND_PRINT((ndo, " fs reply %s", tok2str(fs_req, "op#%d", opcode))); 1076 1077 bp += sizeof(struct rx_header); 1078 1079 /* 1080 * If it was a data packet, interpret the response 1081 */ 1082 1083 if (rxh->type == RX_PACKET_TYPE_DATA) { 1084 switch (opcode) { 1085 case 131: /* Fetch ACL */ 1086 { 1087 char a[AFSOPAQUEMAX+1]; 1088 ND_TCHECK2(bp[0], 4); 1089 i = EXTRACT_32BITS(bp); 1090 bp += sizeof(int32_t); 1091 ND_TCHECK2(bp[0], i); 1092 i = min(AFSOPAQUEMAX, i); 1093 strncpy(a, (const char *) bp, i); 1094 a[i] = '\0'; 1095 acl_print(ndo, (u_char *) a, sizeof(a), (u_char *) a + i); 1096 break; 1097 } 1098 case 137: /* Create file */ 1099 case 141: /* MakeDir */ 1100 ND_PRINT((ndo, " new")); 1101 FIDOUT(); 1102 break; 1103 case 151: /* Get root volume */ 1104 ND_PRINT((ndo, " root volume")); 1105 STROUT(AFSNAMEMAX); 1106 break; 1107 case 153: /* Get time */ 1108 DATEOUT(); 1109 break; 1110 default: 1111 ; 1112 } 1113 } else if (rxh->type == RX_PACKET_TYPE_ABORT) { 1114 /* 1115 * Otherwise, just print out the return code 1116 */ 1117 ND_TCHECK2(bp[0], sizeof(int32_t)); 1118 i = (int) EXTRACT_32BITS(bp); 1119 bp += sizeof(int32_t); 1120 1121 ND_PRINT((ndo, " error %s", tok2str(afs_fs_errors, "#%d", i))); 1122 } else { 1123 ND_PRINT((ndo, " strange fs reply of type %d", rxh->type)); 1124 } 1125 1126 return; 1127 1128trunc: 1129 ND_PRINT((ndo, " [|fs]")); 1130} 1131 1132/* 1133 * Print out an AFS ACL string. An AFS ACL is a string that has the 1134 * following format: 1135 * 1136 * <positive> <negative> 1137 * <uid1> <aclbits1> 1138 * .... 1139 * 1140 * "positive" and "negative" are integers which contain the number of 1141 * positive and negative ACL's in the string. The uid/aclbits pair are 1142 * ASCII strings containing the UID/PTS record and and a ascii number 1143 * representing a logical OR of all the ACL permission bits 1144 */ 1145 1146static void 1147acl_print(netdissect_options *ndo, 1148 u_char *s, int maxsize, u_char *end) 1149{ 1150 int pos, neg, acl; 1151 int n, i; 1152 char *user; 1153 char fmt[1024]; 1154 1155 if ((user = (char *)malloc(maxsize)) == NULL) 1156 return; 1157 1158 if (sscanf((char *) s, "%d %d\n%n", &pos, &neg, &n) != 2) 1159 goto finish; 1160 1161 s += n; 1162 1163 if (s > end) 1164 goto finish; 1165 1166 /* 1167 * This wacky order preserves the order used by the "fs" command 1168 */ 1169 1170#define ACLOUT(acl) \ 1171 ND_PRINT((ndo, "%s%s%s%s%s%s%s", \ 1172 acl & PRSFS_READ ? "r" : "", \ 1173 acl & PRSFS_LOOKUP ? "l" : "", \ 1174 acl & PRSFS_INSERT ? "i" : "", \ 1175 acl & PRSFS_DELETE ? "d" : "", \ 1176 acl & PRSFS_WRITE ? "w" : "", \ 1177 acl & PRSFS_LOCK ? "k" : "", \ 1178 acl & PRSFS_ADMINISTER ? "a" : "")); 1179 1180 for (i = 0; i < pos; i++) { 1181 snprintf(fmt, sizeof(fmt), "%%%ds %%d\n%%n", maxsize - 1); 1182 if (sscanf((char *) s, fmt, user, &acl, &n) != 2) 1183 goto finish; 1184 s += n; 1185 ND_PRINT((ndo, " +{")); 1186 fn_print(ndo, (u_char *)user, NULL); 1187 ND_PRINT((ndo, " ")); 1188 ACLOUT(acl); 1189 ND_PRINT((ndo, "}")); 1190 if (s > end) 1191 goto finish; 1192 } 1193 1194 for (i = 0; i < neg; i++) { 1195 snprintf(fmt, sizeof(fmt), "%%%ds %%d\n%%n", maxsize - 1); 1196 if (sscanf((char *) s, fmt, user, &acl, &n) != 2) 1197 goto finish; 1198 s += n; 1199 ND_PRINT((ndo, " -{")); 1200 fn_print(ndo, (u_char *)user, NULL); 1201 ND_PRINT((ndo, " ")); 1202 ACLOUT(acl); 1203 ND_PRINT((ndo, "}")); 1204 if (s > end) 1205 goto finish; 1206 } 1207 1208finish: 1209 free(user); 1210 return; 1211} 1212 1213#undef ACLOUT 1214 1215/* 1216 * Handle calls to the AFS callback service 1217 */ 1218 1219static void 1220cb_print(netdissect_options *ndo, 1221 register const u_char *bp, int length) 1222{ 1223 int cb_op; 1224 unsigned long i; 1225 1226 if (length <= (int)sizeof(struct rx_header)) 1227 return; 1228 1229 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1230 goto trunc; 1231 } 1232 1233 /* 1234 * Print out the afs call we're invoking. The table used here was 1235 * gleaned from fsint/afscbint.xg 1236 */ 1237 1238 cb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1239 1240 ND_PRINT((ndo, " cb call %s", tok2str(cb_req, "op#%d", cb_op))); 1241 1242 bp += sizeof(struct rx_header) + 4; 1243 1244 /* 1245 * Print out the afs call we're invoking. The table used here was 1246 * gleaned from fsint/afscbint.xg 1247 */ 1248 1249 switch (cb_op) { 1250 case 204: /* Callback */ 1251 { 1252 unsigned long j, t; 1253 ND_TCHECK2(bp[0], 4); 1254 j = EXTRACT_32BITS(bp); 1255 bp += sizeof(int32_t); 1256 1257 for (i = 0; i < j; i++) { 1258 FIDOUT(); 1259 if (i != j - 1) 1260 ND_PRINT((ndo, ",")); 1261 } 1262 1263 if (j == 0) 1264 ND_PRINT((ndo, " <none!>")); 1265 1266 ND_TCHECK_32BITS(bp); 1267 j = EXTRACT_32BITS(bp); 1268 bp += sizeof(int32_t); 1269 1270 if (j != 0) 1271 ND_PRINT((ndo, ";")); 1272 1273 for (i = 0; i < j; i++) { 1274 ND_PRINT((ndo, " ver")); 1275 INTOUT(); 1276 ND_PRINT((ndo, " expires")); 1277 DATEOUT(); 1278 ND_TCHECK2(bp[0], 4); 1279 t = EXTRACT_32BITS(bp); 1280 bp += sizeof(int32_t); 1281 tok2str(cb_types, "type %d", t); 1282 } 1283 break; 1284 } 1285 case 214: { 1286 ND_PRINT((ndo, " afsuuid")); 1287 AFSUUIDOUT(); 1288 break; 1289 } 1290 default: 1291 ; 1292 } 1293 1294 return; 1295 1296trunc: 1297 ND_PRINT((ndo, " [|cb]")); 1298} 1299 1300/* 1301 * Handle replies to the AFS Callback Service 1302 */ 1303 1304static void 1305cb_reply_print(netdissect_options *ndo, 1306 register const u_char *bp, int length, int32_t opcode) 1307{ 1308 const struct rx_header *rxh; 1309 1310 if (length <= (int)sizeof(struct rx_header)) 1311 return; 1312 1313 rxh = (const struct rx_header *) bp; 1314 1315 /* 1316 * Print out the afs call we're invoking. The table used here was 1317 * gleaned from fsint/afscbint.xg 1318 */ 1319 1320 ND_PRINT((ndo, " cb reply %s", tok2str(cb_req, "op#%d", opcode))); 1321 1322 bp += sizeof(struct rx_header); 1323 1324 /* 1325 * If it was a data packet, interpret the response. 1326 */ 1327 1328 if (rxh->type == RX_PACKET_TYPE_DATA) 1329 switch (opcode) { 1330 case 213: /* InitCallBackState3 */ 1331 AFSUUIDOUT(); 1332 break; 1333 default: 1334 ; 1335 } 1336 else { 1337 /* 1338 * Otherwise, just print out the return code 1339 */ 1340 ND_PRINT((ndo, " errcode")); 1341 INTOUT(); 1342 } 1343 1344 return; 1345 1346trunc: 1347 ND_PRINT((ndo, " [|cb]")); 1348} 1349 1350/* 1351 * Handle calls to the AFS protection database server 1352 */ 1353 1354static void 1355prot_print(netdissect_options *ndo, 1356 register const u_char *bp, int length) 1357{ 1358 unsigned long i; 1359 int pt_op; 1360 1361 if (length <= (int)sizeof(struct rx_header)) 1362 return; 1363 1364 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1365 goto trunc; 1366 } 1367 1368 /* 1369 * Print out the afs call we're invoking. The table used here was 1370 * gleaned from ptserver/ptint.xg 1371 */ 1372 1373 pt_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1374 1375 ND_PRINT((ndo, " pt")); 1376 1377 if (is_ubik(pt_op)) { 1378 ubik_print(ndo, bp); 1379 return; 1380 } 1381 1382 ND_PRINT((ndo, " call %s", tok2str(pt_req, "op#%d", pt_op))); 1383 1384 /* 1385 * Decode some of the arguments to the PT calls 1386 */ 1387 1388 bp += sizeof(struct rx_header) + 4; 1389 1390 switch (pt_op) { 1391 case 500: /* I New User */ 1392 STROUT(PRNAMEMAX); 1393 ND_PRINT((ndo, " id")); 1394 INTOUT(); 1395 ND_PRINT((ndo, " oldid")); 1396 INTOUT(); 1397 break; 1398 case 501: /* Where is it */ 1399 case 506: /* Delete */ 1400 case 508: /* Get CPS */ 1401 case 512: /* List entry */ 1402 case 514: /* List elements */ 1403 case 517: /* List owned */ 1404 case 518: /* Get CPS2 */ 1405 case 519: /* Get host CPS */ 1406 case 530: /* List super groups */ 1407 ND_PRINT((ndo, " id")); 1408 INTOUT(); 1409 break; 1410 case 502: /* Dump entry */ 1411 ND_PRINT((ndo, " pos")); 1412 INTOUT(); 1413 break; 1414 case 503: /* Add to group */ 1415 case 507: /* Remove from group */ 1416 case 515: /* Is a member of? */ 1417 ND_PRINT((ndo, " uid")); 1418 INTOUT(); 1419 ND_PRINT((ndo, " gid")); 1420 INTOUT(); 1421 break; 1422 case 504: /* Name to ID */ 1423 { 1424 unsigned long j; 1425 ND_TCHECK2(bp[0], 4); 1426 j = EXTRACT_32BITS(bp); 1427 bp += sizeof(int32_t); 1428 1429 /* 1430 * Who designed this chicken-shit protocol? 1431 * 1432 * Each character is stored as a 32-bit 1433 * integer! 1434 */ 1435 1436 for (i = 0; i < j; i++) { 1437 VECOUT(PRNAMEMAX); 1438 } 1439 if (j == 0) 1440 ND_PRINT((ndo, " <none!>")); 1441 } 1442 break; 1443 case 505: /* Id to name */ 1444 { 1445 unsigned long j; 1446 ND_PRINT((ndo, " ids:")); 1447 ND_TCHECK2(bp[0], 4); 1448 i = EXTRACT_32BITS(bp); 1449 bp += sizeof(int32_t); 1450 for (j = 0; j < i; j++) 1451 INTOUT(); 1452 if (j == 0) 1453 ND_PRINT((ndo, " <none!>")); 1454 } 1455 break; 1456 case 509: /* New entry */ 1457 STROUT(PRNAMEMAX); 1458 ND_PRINT((ndo, " flag")); 1459 INTOUT(); 1460 ND_PRINT((ndo, " oid")); 1461 INTOUT(); 1462 break; 1463 case 511: /* Set max */ 1464 ND_PRINT((ndo, " id")); 1465 INTOUT(); 1466 ND_PRINT((ndo, " gflag")); 1467 INTOUT(); 1468 break; 1469 case 513: /* Change entry */ 1470 ND_PRINT((ndo, " id")); 1471 INTOUT(); 1472 STROUT(PRNAMEMAX); 1473 ND_PRINT((ndo, " oldid")); 1474 INTOUT(); 1475 ND_PRINT((ndo, " newid")); 1476 INTOUT(); 1477 break; 1478 case 520: /* Update entry */ 1479 ND_PRINT((ndo, " id")); 1480 INTOUT(); 1481 STROUT(PRNAMEMAX); 1482 break; 1483 default: 1484 ; 1485 } 1486 1487 1488 return; 1489 1490trunc: 1491 ND_PRINT((ndo, " [|pt]")); 1492} 1493 1494/* 1495 * Handle replies to the AFS protection service 1496 */ 1497 1498static void 1499prot_reply_print(netdissect_options *ndo, 1500 register const u_char *bp, int length, int32_t opcode) 1501{ 1502 const struct rx_header *rxh; 1503 unsigned long i; 1504 1505 if (length < (int)sizeof(struct rx_header)) 1506 return; 1507 1508 rxh = (const struct rx_header *) bp; 1509 1510 /* 1511 * Print out the afs call we're invoking. The table used here was 1512 * gleaned from ptserver/ptint.xg. Check to see if it's a 1513 * Ubik call, however. 1514 */ 1515 1516 ND_PRINT((ndo, " pt")); 1517 1518 if (is_ubik(opcode)) { 1519 ubik_reply_print(ndo, bp, length, opcode); 1520 return; 1521 } 1522 1523 ND_PRINT((ndo, " reply %s", tok2str(pt_req, "op#%d", opcode))); 1524 1525 bp += sizeof(struct rx_header); 1526 1527 /* 1528 * If it was a data packet, interpret the response 1529 */ 1530 1531 if (rxh->type == RX_PACKET_TYPE_DATA) 1532 switch (opcode) { 1533 case 504: /* Name to ID */ 1534 { 1535 unsigned long j; 1536 ND_PRINT((ndo, " ids:")); 1537 ND_TCHECK2(bp[0], 4); 1538 i = EXTRACT_32BITS(bp); 1539 bp += sizeof(int32_t); 1540 for (j = 0; j < i; j++) 1541 INTOUT(); 1542 if (j == 0) 1543 ND_PRINT((ndo, " <none!>")); 1544 } 1545 break; 1546 case 505: /* ID to name */ 1547 { 1548 unsigned long j; 1549 ND_TCHECK2(bp[0], 4); 1550 j = EXTRACT_32BITS(bp); 1551 bp += sizeof(int32_t); 1552 1553 /* 1554 * Who designed this chicken-shit protocol? 1555 * 1556 * Each character is stored as a 32-bit 1557 * integer! 1558 */ 1559 1560 for (i = 0; i < j; i++) { 1561 VECOUT(PRNAMEMAX); 1562 } 1563 if (j == 0) 1564 ND_PRINT((ndo, " <none!>")); 1565 } 1566 break; 1567 case 508: /* Get CPS */ 1568 case 514: /* List elements */ 1569 case 517: /* List owned */ 1570 case 518: /* Get CPS2 */ 1571 case 519: /* Get host CPS */ 1572 { 1573 unsigned long j; 1574 ND_TCHECK2(bp[0], 4); 1575 j = EXTRACT_32BITS(bp); 1576 bp += sizeof(int32_t); 1577 for (i = 0; i < j; i++) { 1578 INTOUT(); 1579 } 1580 if (j == 0) 1581 ND_PRINT((ndo, " <none!>")); 1582 } 1583 break; 1584 case 510: /* List max */ 1585 ND_PRINT((ndo, " maxuid")); 1586 INTOUT(); 1587 ND_PRINT((ndo, " maxgid")); 1588 INTOUT(); 1589 break; 1590 default: 1591 ; 1592 } 1593 else { 1594 /* 1595 * Otherwise, just print out the return code 1596 */ 1597 ND_PRINT((ndo, " errcode")); 1598 INTOUT(); 1599 } 1600 1601 return; 1602 1603trunc: 1604 ND_PRINT((ndo, " [|pt]")); 1605} 1606 1607/* 1608 * Handle calls to the AFS volume location database service 1609 */ 1610 1611static void 1612vldb_print(netdissect_options *ndo, 1613 register const u_char *bp, int length) 1614{ 1615 int vldb_op; 1616 unsigned long i; 1617 1618 if (length <= (int)sizeof(struct rx_header)) 1619 return; 1620 1621 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1622 goto trunc; 1623 } 1624 1625 /* 1626 * Print out the afs call we're invoking. The table used here was 1627 * gleaned from vlserver/vldbint.xg 1628 */ 1629 1630 vldb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1631 1632 ND_PRINT((ndo, " vldb")); 1633 1634 if (is_ubik(vldb_op)) { 1635 ubik_print(ndo, bp); 1636 return; 1637 } 1638 ND_PRINT((ndo, " call %s", tok2str(vldb_req, "op#%d", vldb_op))); 1639 1640 /* 1641 * Decode some of the arguments to the VLDB calls 1642 */ 1643 1644 bp += sizeof(struct rx_header) + 4; 1645 1646 switch (vldb_op) { 1647 case 501: /* Create new volume */ 1648 case 517: /* Create entry N */ 1649 VECOUT(VLNAMEMAX); 1650 break; 1651 case 502: /* Delete entry */ 1652 case 503: /* Get entry by ID */ 1653 case 507: /* Update entry */ 1654 case 508: /* Set lock */ 1655 case 509: /* Release lock */ 1656 case 518: /* Get entry by ID N */ 1657 ND_PRINT((ndo, " volid")); 1658 INTOUT(); 1659 ND_TCHECK2(bp[0], sizeof(int32_t)); 1660 i = EXTRACT_32BITS(bp); 1661 bp += sizeof(int32_t); 1662 if (i <= 2) 1663 ND_PRINT((ndo, " type %s", voltype[i])); 1664 break; 1665 case 504: /* Get entry by name */ 1666 case 519: /* Get entry by name N */ 1667 case 524: /* Update entry by name */ 1668 case 527: /* Get entry by name U */ 1669 STROUT(VLNAMEMAX); 1670 break; 1671 case 505: /* Get new vol id */ 1672 ND_PRINT((ndo, " bump")); 1673 INTOUT(); 1674 break; 1675 case 506: /* Replace entry */ 1676 case 520: /* Replace entry N */ 1677 ND_PRINT((ndo, " volid")); 1678 INTOUT(); 1679 ND_TCHECK2(bp[0], sizeof(int32_t)); 1680 i = EXTRACT_32BITS(bp); 1681 bp += sizeof(int32_t); 1682 if (i <= 2) 1683 ND_PRINT((ndo, " type %s", voltype[i])); 1684 VECOUT(VLNAMEMAX); 1685 break; 1686 case 510: /* List entry */ 1687 case 521: /* List entry N */ 1688 ND_PRINT((ndo, " index")); 1689 INTOUT(); 1690 break; 1691 default: 1692 ; 1693 } 1694 1695 return; 1696 1697trunc: 1698 ND_PRINT((ndo, " [|vldb]")); 1699} 1700 1701/* 1702 * Handle replies to the AFS volume location database service 1703 */ 1704 1705static void 1706vldb_reply_print(netdissect_options *ndo, 1707 register const u_char *bp, int length, int32_t opcode) 1708{ 1709 const struct rx_header *rxh; 1710 unsigned long i; 1711 1712 if (length < (int)sizeof(struct rx_header)) 1713 return; 1714 1715 rxh = (const struct rx_header *) bp; 1716 1717 /* 1718 * Print out the afs call we're invoking. The table used here was 1719 * gleaned from vlserver/vldbint.xg. Check to see if it's a 1720 * Ubik call, however. 1721 */ 1722 1723 ND_PRINT((ndo, " vldb")); 1724 1725 if (is_ubik(opcode)) { 1726 ubik_reply_print(ndo, bp, length, opcode); 1727 return; 1728 } 1729 1730 ND_PRINT((ndo, " reply %s", tok2str(vldb_req, "op#%d", opcode))); 1731 1732 bp += sizeof(struct rx_header); 1733 1734 /* 1735 * If it was a data packet, interpret the response 1736 */ 1737 1738 if (rxh->type == RX_PACKET_TYPE_DATA) 1739 switch (opcode) { 1740 case 510: /* List entry */ 1741 ND_PRINT((ndo, " count")); 1742 INTOUT(); 1743 ND_PRINT((ndo, " nextindex")); 1744 INTOUT(); 1745 /*FALLTHROUGH*/ 1746 case 503: /* Get entry by id */ 1747 case 504: /* Get entry by name */ 1748 { unsigned long nservers, j; 1749 VECOUT(VLNAMEMAX); 1750 ND_TCHECK2(bp[0], sizeof(int32_t)); 1751 bp += sizeof(int32_t); 1752 ND_PRINT((ndo, " numservers")); 1753 ND_TCHECK2(bp[0], sizeof(int32_t)); 1754 nservers = EXTRACT_32BITS(bp); 1755 bp += sizeof(int32_t); 1756 ND_PRINT((ndo, " %lu", nservers)); 1757 ND_PRINT((ndo, " servers")); 1758 for (i = 0; i < 8; i++) { 1759 ND_TCHECK2(bp[0], sizeof(int32_t)); 1760 if (i < nservers) 1761 ND_PRINT((ndo, " %s", 1762 intoa(((const struct in_addr *) bp)->s_addr))); 1763 bp += sizeof(int32_t); 1764 } 1765 ND_PRINT((ndo, " partitions")); 1766 for (i = 0; i < 8; i++) { 1767 ND_TCHECK2(bp[0], sizeof(int32_t)); 1768 j = EXTRACT_32BITS(bp); 1769 if (i < nservers && j <= 26) 1770 ND_PRINT((ndo, " %c", 'a' + (int)j)); 1771 else if (i < nservers) 1772 ND_PRINT((ndo, " %lu", j)); 1773 bp += sizeof(int32_t); 1774 } 1775 ND_TCHECK2(bp[0], 8 * sizeof(int32_t)); 1776 bp += 8 * sizeof(int32_t); 1777 ND_PRINT((ndo, " rwvol")); 1778 UINTOUT(); 1779 ND_PRINT((ndo, " rovol")); 1780 UINTOUT(); 1781 ND_PRINT((ndo, " backup")); 1782 UINTOUT(); 1783 } 1784 break; 1785 case 505: /* Get new volume ID */ 1786 ND_PRINT((ndo, " newvol")); 1787 UINTOUT(); 1788 break; 1789 case 521: /* List entry */ 1790 case 529: /* List entry U */ 1791 ND_PRINT((ndo, " count")); 1792 INTOUT(); 1793 ND_PRINT((ndo, " nextindex")); 1794 INTOUT(); 1795 /*FALLTHROUGH*/ 1796 case 518: /* Get entry by ID N */ 1797 case 519: /* Get entry by name N */ 1798 { unsigned long nservers, j; 1799 VECOUT(VLNAMEMAX); 1800 ND_PRINT((ndo, " numservers")); 1801 ND_TCHECK2(bp[0], sizeof(int32_t)); 1802 nservers = EXTRACT_32BITS(bp); 1803 bp += sizeof(int32_t); 1804 ND_PRINT((ndo, " %lu", nservers)); 1805 ND_PRINT((ndo, " servers")); 1806 for (i = 0; i < 13; i++) { 1807 ND_TCHECK2(bp[0], sizeof(int32_t)); 1808 if (i < nservers) 1809 ND_PRINT((ndo, " %s", 1810 intoa(((const struct in_addr *) bp)->s_addr))); 1811 bp += sizeof(int32_t); 1812 } 1813 ND_PRINT((ndo, " partitions")); 1814 for (i = 0; i < 13; i++) { 1815 ND_TCHECK2(bp[0], sizeof(int32_t)); 1816 j = EXTRACT_32BITS(bp); 1817 if (i < nservers && j <= 26) 1818 ND_PRINT((ndo, " %c", 'a' + (int)j)); 1819 else if (i < nservers) 1820 ND_PRINT((ndo, " %lu", j)); 1821 bp += sizeof(int32_t); 1822 } 1823 ND_TCHECK2(bp[0], 13 * sizeof(int32_t)); 1824 bp += 13 * sizeof(int32_t); 1825 ND_PRINT((ndo, " rwvol")); 1826 UINTOUT(); 1827 ND_PRINT((ndo, " rovol")); 1828 UINTOUT(); 1829 ND_PRINT((ndo, " backup")); 1830 UINTOUT(); 1831 } 1832 break; 1833 case 526: /* Get entry by ID U */ 1834 case 527: /* Get entry by name U */ 1835 { unsigned long nservers, j; 1836 VECOUT(VLNAMEMAX); 1837 ND_PRINT((ndo, " numservers")); 1838 ND_TCHECK2(bp[0], sizeof(int32_t)); 1839 nservers = EXTRACT_32BITS(bp); 1840 bp += sizeof(int32_t); 1841 ND_PRINT((ndo, " %lu", nservers)); 1842 ND_PRINT((ndo, " servers")); 1843 for (i = 0; i < 13; i++) { 1844 if (i < nservers) { 1845 ND_PRINT((ndo, " afsuuid")); 1846 AFSUUIDOUT(); 1847 } else { 1848 ND_TCHECK2(bp[0], 44); 1849 bp += 44; 1850 } 1851 } 1852 ND_TCHECK2(bp[0], 4 * 13); 1853 bp += 4 * 13; 1854 ND_PRINT((ndo, " partitions")); 1855 for (i = 0; i < 13; i++) { 1856 ND_TCHECK2(bp[0], sizeof(int32_t)); 1857 j = EXTRACT_32BITS(bp); 1858 if (i < nservers && j <= 26) 1859 ND_PRINT((ndo, " %c", 'a' + (int)j)); 1860 else if (i < nservers) 1861 ND_PRINT((ndo, " %lu", j)); 1862 bp += sizeof(int32_t); 1863 } 1864 ND_TCHECK2(bp[0], 13 * sizeof(int32_t)); 1865 bp += 13 * sizeof(int32_t); 1866 ND_PRINT((ndo, " rwvol")); 1867 UINTOUT(); 1868 ND_PRINT((ndo, " rovol")); 1869 UINTOUT(); 1870 ND_PRINT((ndo, " backup")); 1871 UINTOUT(); 1872 } 1873 default: 1874 ; 1875 } 1876 1877 else { 1878 /* 1879 * Otherwise, just print out the return code 1880 */ 1881 ND_PRINT((ndo, " errcode")); 1882 INTOUT(); 1883 } 1884 1885 return; 1886 1887trunc: 1888 ND_PRINT((ndo, " [|vldb]")); 1889} 1890 1891/* 1892 * Handle calls to the AFS Kerberos Authentication service 1893 */ 1894 1895static void 1896kauth_print(netdissect_options *ndo, 1897 register const u_char *bp, int length) 1898{ 1899 int kauth_op; 1900 1901 if (length <= (int)sizeof(struct rx_header)) 1902 return; 1903 1904 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1905 goto trunc; 1906 } 1907 1908 /* 1909 * Print out the afs call we're invoking. The table used here was 1910 * gleaned from kauth/kauth.rg 1911 */ 1912 1913 kauth_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1914 1915 ND_PRINT((ndo, " kauth")); 1916 1917 if (is_ubik(kauth_op)) { 1918 ubik_print(ndo, bp); 1919 return; 1920 } 1921 1922 1923 ND_PRINT((ndo, " call %s", tok2str(kauth_req, "op#%d", kauth_op))); 1924 1925 /* 1926 * Decode some of the arguments to the KA calls 1927 */ 1928 1929 bp += sizeof(struct rx_header) + 4; 1930 1931 switch (kauth_op) { 1932 case 1: /* Authenticate old */ 1933 case 21: /* Authenticate */ 1934 case 22: /* Authenticate-V2 */ 1935 case 2: /* Change PW */ 1936 case 5: /* Set fields */ 1937 case 6: /* Create user */ 1938 case 7: /* Delete user */ 1939 case 8: /* Get entry */ 1940 case 14: /* Unlock */ 1941 case 15: /* Lock status */ 1942 ND_PRINT((ndo, " principal")); 1943 STROUT(KANAMEMAX); 1944 STROUT(KANAMEMAX); 1945 break; 1946 case 3: /* GetTicket-old */ 1947 case 23: /* GetTicket */ 1948 { 1949 int i; 1950 ND_PRINT((ndo, " kvno")); 1951 INTOUT(); 1952 ND_PRINT((ndo, " domain")); 1953 STROUT(KANAMEMAX); 1954 ND_TCHECK2(bp[0], sizeof(int32_t)); 1955 i = (int) EXTRACT_32BITS(bp); 1956 bp += sizeof(int32_t); 1957 ND_TCHECK2(bp[0], i); 1958 bp += i; 1959 ND_PRINT((ndo, " principal")); 1960 STROUT(KANAMEMAX); 1961 STROUT(KANAMEMAX); 1962 break; 1963 } 1964 case 4: /* Set Password */ 1965 ND_PRINT((ndo, " principal")); 1966 STROUT(KANAMEMAX); 1967 STROUT(KANAMEMAX); 1968 ND_PRINT((ndo, " kvno")); 1969 INTOUT(); 1970 break; 1971 case 12: /* Get password */ 1972 ND_PRINT((ndo, " name")); 1973 STROUT(KANAMEMAX); 1974 break; 1975 default: 1976 ; 1977 } 1978 1979 return; 1980 1981trunc: 1982 ND_PRINT((ndo, " [|kauth]")); 1983} 1984 1985/* 1986 * Handle replies to the AFS Kerberos Authentication Service 1987 */ 1988 1989static void 1990kauth_reply_print(netdissect_options *ndo, 1991 register const u_char *bp, int length, int32_t opcode) 1992{ 1993 const struct rx_header *rxh; 1994 1995 if (length <= (int)sizeof(struct rx_header)) 1996 return; 1997 1998 rxh = (const struct rx_header *) bp; 1999 2000 /* 2001 * Print out the afs call we're invoking. The table used here was 2002 * gleaned from kauth/kauth.rg 2003 */ 2004 2005 ND_PRINT((ndo, " kauth")); 2006 2007 if (is_ubik(opcode)) { 2008 ubik_reply_print(ndo, bp, length, opcode); 2009 return; 2010 } 2011 2012 ND_PRINT((ndo, " reply %s", tok2str(kauth_req, "op#%d", opcode))); 2013 2014 bp += sizeof(struct rx_header); 2015 2016 /* 2017 * If it was a data packet, interpret the response. 2018 */ 2019 2020 if (rxh->type == RX_PACKET_TYPE_DATA) 2021 /* Well, no, not really. Leave this for later */ 2022 ; 2023 else { 2024 /* 2025 * Otherwise, just print out the return code 2026 */ 2027 ND_PRINT((ndo, " errcode")); 2028 INTOUT(); 2029 } 2030 2031 return; 2032 2033trunc: 2034 ND_PRINT((ndo, " [|kauth]")); 2035} 2036 2037/* 2038 * Handle calls to the AFS Volume location service 2039 */ 2040 2041static void 2042vol_print(netdissect_options *ndo, 2043 register const u_char *bp, int length) 2044{ 2045 int vol_op; 2046 2047 if (length <= (int)sizeof(struct rx_header)) 2048 return; 2049 2050 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 2051 goto trunc; 2052 } 2053 2054 /* 2055 * Print out the afs call we're invoking. The table used here was 2056 * gleaned from volser/volint.xg 2057 */ 2058 2059 vol_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 2060 2061 ND_PRINT((ndo, " vol call %s", tok2str(vol_req, "op#%d", vol_op))); 2062 2063 bp += sizeof(struct rx_header) + 4; 2064 2065 switch (vol_op) { 2066 case 100: /* Create volume */ 2067 ND_PRINT((ndo, " partition")); 2068 UINTOUT(); 2069 ND_PRINT((ndo, " name")); 2070 STROUT(AFSNAMEMAX); 2071 ND_PRINT((ndo, " type")); 2072 UINTOUT(); 2073 ND_PRINT((ndo, " parent")); 2074 UINTOUT(); 2075 break; 2076 case 101: /* Delete volume */ 2077 case 107: /* Get flags */ 2078 ND_PRINT((ndo, " trans")); 2079 UINTOUT(); 2080 break; 2081 case 102: /* Restore */ 2082 ND_PRINT((ndo, " totrans")); 2083 UINTOUT(); 2084 ND_PRINT((ndo, " flags")); 2085 UINTOUT(); 2086 break; 2087 case 103: /* Forward */ 2088 ND_PRINT((ndo, " fromtrans")); 2089 UINTOUT(); 2090 ND_PRINT((ndo, " fromdate")); 2091 DATEOUT(); 2092 DESTSERVEROUT(); 2093 ND_PRINT((ndo, " desttrans")); 2094 INTOUT(); 2095 break; 2096 case 104: /* End trans */ 2097 ND_PRINT((ndo, " trans")); 2098 UINTOUT(); 2099 break; 2100 case 105: /* Clone */ 2101 ND_PRINT((ndo, " trans")); 2102 UINTOUT(); 2103 ND_PRINT((ndo, " purgevol")); 2104 UINTOUT(); 2105 ND_PRINT((ndo, " newtype")); 2106 UINTOUT(); 2107 ND_PRINT((ndo, " newname")); 2108 STROUT(AFSNAMEMAX); 2109 break; 2110 case 106: /* Set flags */ 2111 ND_PRINT((ndo, " trans")); 2112 UINTOUT(); 2113 ND_PRINT((ndo, " flags")); 2114 UINTOUT(); 2115 break; 2116 case 108: /* Trans create */ 2117 ND_PRINT((ndo, " vol")); 2118 UINTOUT(); 2119 ND_PRINT((ndo, " partition")); 2120 UINTOUT(); 2121 ND_PRINT((ndo, " flags")); 2122 UINTOUT(); 2123 break; 2124 case 109: /* Dump */ 2125 case 655537: /* Get size */ 2126 ND_PRINT((ndo, " fromtrans")); 2127 UINTOUT(); 2128 ND_PRINT((ndo, " fromdate")); 2129 DATEOUT(); 2130 break; 2131 case 110: /* Get n-th volume */ 2132 ND_PRINT((ndo, " index")); 2133 UINTOUT(); 2134 break; 2135 case 111: /* Set forwarding */ 2136 ND_PRINT((ndo, " tid")); 2137 UINTOUT(); 2138 ND_PRINT((ndo, " newsite")); 2139 UINTOUT(); 2140 break; 2141 case 112: /* Get name */ 2142 case 113: /* Get status */ 2143 ND_PRINT((ndo, " tid")); 2144 break; 2145 case 114: /* Signal restore */ 2146 ND_PRINT((ndo, " name")); 2147 STROUT(AFSNAMEMAX); 2148 ND_PRINT((ndo, " type")); 2149 UINTOUT(); 2150 ND_PRINT((ndo, " pid")); 2151 UINTOUT(); 2152 ND_PRINT((ndo, " cloneid")); 2153 UINTOUT(); 2154 break; 2155 case 116: /* List volumes */ 2156 ND_PRINT((ndo, " partition")); 2157 UINTOUT(); 2158 ND_PRINT((ndo, " flags")); 2159 UINTOUT(); 2160 break; 2161 case 117: /* Set id types */ 2162 ND_PRINT((ndo, " tid")); 2163 UINTOUT(); 2164 ND_PRINT((ndo, " name")); 2165 STROUT(AFSNAMEMAX); 2166 ND_PRINT((ndo, " type")); 2167 UINTOUT(); 2168 ND_PRINT((ndo, " pid")); 2169 UINTOUT(); 2170 ND_PRINT((ndo, " clone")); 2171 UINTOUT(); 2172 ND_PRINT((ndo, " backup")); 2173 UINTOUT(); 2174 break; 2175 case 119: /* Partition info */ 2176 ND_PRINT((ndo, " name")); 2177 STROUT(AFSNAMEMAX); 2178 break; 2179 case 120: /* Reclone */ 2180 ND_PRINT((ndo, " tid")); 2181 UINTOUT(); 2182 break; 2183 case 121: /* List one volume */ 2184 case 122: /* Nuke volume */ 2185 case 124: /* Extended List volumes */ 2186 case 125: /* Extended List one volume */ 2187 case 65536: /* Convert RO to RW volume */ 2188 ND_PRINT((ndo, " partid")); 2189 UINTOUT(); 2190 ND_PRINT((ndo, " volid")); 2191 UINTOUT(); 2192 break; 2193 case 123: /* Set date */ 2194 ND_PRINT((ndo, " tid")); 2195 UINTOUT(); 2196 ND_PRINT((ndo, " date")); 2197 DATEOUT(); 2198 break; 2199 case 126: /* Set info */ 2200 ND_PRINT((ndo, " tid")); 2201 UINTOUT(); 2202 break; 2203 case 128: /* Forward multiple */ 2204 ND_PRINT((ndo, " fromtrans")); 2205 UINTOUT(); 2206 ND_PRINT((ndo, " fromdate")); 2207 DATEOUT(); 2208 { 2209 unsigned long i, j; 2210 ND_TCHECK2(bp[0], 4); 2211 j = EXTRACT_32BITS(bp); 2212 bp += sizeof(int32_t); 2213 for (i = 0; i < j; i++) { 2214 DESTSERVEROUT(); 2215 if (i != j - 1) 2216 ND_PRINT((ndo, ",")); 2217 } 2218 if (j == 0) 2219 ND_PRINT((ndo, " <none!>")); 2220 } 2221 break; 2222 case 65538: /* Dump version 2 */ 2223 ND_PRINT((ndo, " fromtrans")); 2224 UINTOUT(); 2225 ND_PRINT((ndo, " fromdate")); 2226 DATEOUT(); 2227 ND_PRINT((ndo, " flags")); 2228 UINTOUT(); 2229 break; 2230 default: 2231 ; 2232 } 2233 return; 2234 2235trunc: 2236 ND_PRINT((ndo, " [|vol]")); 2237} 2238 2239/* 2240 * Handle replies to the AFS Volume Service 2241 */ 2242 2243static void 2244vol_reply_print(netdissect_options *ndo, 2245 register const u_char *bp, int length, int32_t opcode) 2246{ 2247 const struct rx_header *rxh; 2248 2249 if (length <= (int)sizeof(struct rx_header)) 2250 return; 2251 2252 rxh = (const struct rx_header *) bp; 2253 2254 /* 2255 * Print out the afs call we're invoking. The table used here was 2256 * gleaned from volser/volint.xg 2257 */ 2258 2259 ND_PRINT((ndo, " vol reply %s", tok2str(vol_req, "op#%d", opcode))); 2260 2261 bp += sizeof(struct rx_header); 2262 2263 /* 2264 * If it was a data packet, interpret the response. 2265 */ 2266 2267 if (rxh->type == RX_PACKET_TYPE_DATA) { 2268 switch (opcode) { 2269 case 100: /* Create volume */ 2270 ND_PRINT((ndo, " volid")); 2271 UINTOUT(); 2272 ND_PRINT((ndo, " trans")); 2273 UINTOUT(); 2274 break; 2275 case 104: /* End transaction */ 2276 UINTOUT(); 2277 break; 2278 case 105: /* Clone */ 2279 ND_PRINT((ndo, " newvol")); 2280 UINTOUT(); 2281 break; 2282 case 107: /* Get flags */ 2283 UINTOUT(); 2284 break; 2285 case 108: /* Transaction create */ 2286 ND_PRINT((ndo, " trans")); 2287 UINTOUT(); 2288 break; 2289 case 110: /* Get n-th volume */ 2290 ND_PRINT((ndo, " volume")); 2291 UINTOUT(); 2292 ND_PRINT((ndo, " partition")); 2293 UINTOUT(); 2294 break; 2295 case 112: /* Get name */ 2296 STROUT(AFSNAMEMAX); 2297 break; 2298 case 113: /* Get status */ 2299 ND_PRINT((ndo, " volid")); 2300 UINTOUT(); 2301 ND_PRINT((ndo, " nextuniq")); 2302 UINTOUT(); 2303 ND_PRINT((ndo, " type")); 2304 UINTOUT(); 2305 ND_PRINT((ndo, " parentid")); 2306 UINTOUT(); 2307 ND_PRINT((ndo, " clone")); 2308 UINTOUT(); 2309 ND_PRINT((ndo, " backup")); 2310 UINTOUT(); 2311 ND_PRINT((ndo, " restore")); 2312 UINTOUT(); 2313 ND_PRINT((ndo, " maxquota")); 2314 UINTOUT(); 2315 ND_PRINT((ndo, " minquota")); 2316 UINTOUT(); 2317 ND_PRINT((ndo, " owner")); 2318 UINTOUT(); 2319 ND_PRINT((ndo, " create")); 2320 DATEOUT(); 2321 ND_PRINT((ndo, " access")); 2322 DATEOUT(); 2323 ND_PRINT((ndo, " update")); 2324 DATEOUT(); 2325 ND_PRINT((ndo, " expire")); 2326 DATEOUT(); 2327 ND_PRINT((ndo, " backup")); 2328 DATEOUT(); 2329 ND_PRINT((ndo, " copy")); 2330 DATEOUT(); 2331 break; 2332 case 115: /* Old list partitions */ 2333 break; 2334 case 116: /* List volumes */ 2335 case 121: /* List one volume */ 2336 { 2337 unsigned long i, j; 2338 ND_TCHECK2(bp[0], 4); 2339 j = EXTRACT_32BITS(bp); 2340 bp += sizeof(int32_t); 2341 for (i = 0; i < j; i++) { 2342 ND_PRINT((ndo, " name")); 2343 VECOUT(32); 2344 ND_PRINT((ndo, " volid")); 2345 UINTOUT(); 2346 ND_PRINT((ndo, " type")); 2347 bp += sizeof(int32_t) * 21; 2348 if (i != j - 1) 2349 ND_PRINT((ndo, ",")); 2350 } 2351 if (j == 0) 2352 ND_PRINT((ndo, " <none!>")); 2353 } 2354 break; 2355 2356 2357 default: 2358 ; 2359 } 2360 } else { 2361 /* 2362 * Otherwise, just print out the return code 2363 */ 2364 ND_PRINT((ndo, " errcode")); 2365 INTOUT(); 2366 } 2367 2368 return; 2369 2370trunc: 2371 ND_PRINT((ndo, " [|vol]")); 2372} 2373 2374/* 2375 * Handle calls to the AFS BOS service 2376 */ 2377 2378static void 2379bos_print(netdissect_options *ndo, 2380 register const u_char *bp, int length) 2381{ 2382 int bos_op; 2383 2384 if (length <= (int)sizeof(struct rx_header)) 2385 return; 2386 2387 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 2388 goto trunc; 2389 } 2390 2391 /* 2392 * Print out the afs call we're invoking. The table used here was 2393 * gleaned from bozo/bosint.xg 2394 */ 2395 2396 bos_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 2397 2398 ND_PRINT((ndo, " bos call %s", tok2str(bos_req, "op#%d", bos_op))); 2399 2400 /* 2401 * Decode some of the arguments to the BOS calls 2402 */ 2403 2404 bp += sizeof(struct rx_header) + 4; 2405 2406 switch (bos_op) { 2407 case 80: /* Create B node */ 2408 ND_PRINT((ndo, " type")); 2409 STROUT(BOSNAMEMAX); 2410 ND_PRINT((ndo, " instance")); 2411 STROUT(BOSNAMEMAX); 2412 break; 2413 case 81: /* Delete B node */ 2414 case 83: /* Get status */ 2415 case 85: /* Get instance info */ 2416 case 87: /* Add super user */ 2417 case 88: /* Delete super user */ 2418 case 93: /* Set cell name */ 2419 case 96: /* Add cell host */ 2420 case 97: /* Delete cell host */ 2421 case 104: /* Restart */ 2422 case 106: /* Uninstall */ 2423 case 108: /* Exec */ 2424 case 112: /* Getlog */ 2425 case 114: /* Get instance strings */ 2426 STROUT(BOSNAMEMAX); 2427 break; 2428 case 82: /* Set status */ 2429 case 98: /* Set T status */ 2430 STROUT(BOSNAMEMAX); 2431 ND_PRINT((ndo, " status")); 2432 INTOUT(); 2433 break; 2434 case 86: /* Get instance parm */ 2435 STROUT(BOSNAMEMAX); 2436 ND_PRINT((ndo, " num")); 2437 INTOUT(); 2438 break; 2439 case 84: /* Enumerate instance */ 2440 case 89: /* List super users */ 2441 case 90: /* List keys */ 2442 case 91: /* Add key */ 2443 case 92: /* Delete key */ 2444 case 95: /* Get cell host */ 2445 INTOUT(); 2446 break; 2447 case 105: /* Install */ 2448 STROUT(BOSNAMEMAX); 2449 ND_PRINT((ndo, " size")); 2450 INTOUT(); 2451 ND_PRINT((ndo, " flags")); 2452 INTOUT(); 2453 ND_PRINT((ndo, " date")); 2454 INTOUT(); 2455 break; 2456 default: 2457 ; 2458 } 2459 2460 return; 2461 2462trunc: 2463 ND_PRINT((ndo, " [|bos]")); 2464} 2465 2466/* 2467 * Handle replies to the AFS BOS Service 2468 */ 2469 2470static void 2471bos_reply_print(netdissect_options *ndo, 2472 register const u_char *bp, int length, int32_t opcode) 2473{ 2474 const struct rx_header *rxh; 2475 2476 if (length <= (int)sizeof(struct rx_header)) 2477 return; 2478 2479 rxh = (const struct rx_header *) bp; 2480 2481 /* 2482 * Print out the afs call we're invoking. The table used here was 2483 * gleaned from volser/volint.xg 2484 */ 2485 2486 ND_PRINT((ndo, " bos reply %s", tok2str(bos_req, "op#%d", opcode))); 2487 2488 bp += sizeof(struct rx_header); 2489 2490 /* 2491 * If it was a data packet, interpret the response. 2492 */ 2493 2494 if (rxh->type == RX_PACKET_TYPE_DATA) 2495 /* Well, no, not really. Leave this for later */ 2496 ; 2497 else { 2498 /* 2499 * Otherwise, just print out the return code 2500 */ 2501 ND_PRINT((ndo, " errcode")); 2502 INTOUT(); 2503 } 2504 2505 return; 2506 2507trunc: 2508 ND_PRINT((ndo, " [|bos]")); 2509} 2510 2511/* 2512 * Check to see if this is a Ubik opcode. 2513 */ 2514 2515static int 2516is_ubik(uint32_t opcode) 2517{ 2518 if ((opcode >= VOTE_LOW && opcode <= VOTE_HIGH) || 2519 (opcode >= DISK_LOW && opcode <= DISK_HIGH)) 2520 return(1); 2521 else 2522 return(0); 2523} 2524 2525/* 2526 * Handle Ubik opcodes to any one of the replicated database services 2527 */ 2528 2529static void 2530ubik_print(netdissect_options *ndo, 2531 register const u_char *bp) 2532{ 2533 int ubik_op; 2534 int32_t temp; 2535 2536 /* 2537 * Print out the afs call we're invoking. The table used here was 2538 * gleaned from ubik/ubik_int.xg 2539 */ 2540 2541 /* Every function that calls this function first makes a bounds check 2542 * for (sizeof(rx_header) + 4) bytes, so long as it remains this way 2543 * the line below will not over-read. 2544 */ 2545 ubik_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 2546 2547 ND_PRINT((ndo, " ubik call %s", tok2str(ubik_req, "op#%d", ubik_op))); 2548 2549 /* 2550 * Decode some of the arguments to the Ubik calls 2551 */ 2552 2553 bp += sizeof(struct rx_header) + 4; 2554 2555 switch (ubik_op) { 2556 case 10000: /* Beacon */ 2557 ND_TCHECK2(bp[0], 4); 2558 temp = EXTRACT_32BITS(bp); 2559 bp += sizeof(int32_t); 2560 ND_PRINT((ndo, " syncsite %s", temp ? "yes" : "no")); 2561 ND_PRINT((ndo, " votestart")); 2562 DATEOUT(); 2563 ND_PRINT((ndo, " dbversion")); 2564 UBIK_VERSIONOUT(); 2565 ND_PRINT((ndo, " tid")); 2566 UBIK_VERSIONOUT(); 2567 break; 2568 case 10003: /* Get sync site */ 2569 ND_PRINT((ndo, " site")); 2570 UINTOUT(); 2571 break; 2572 case 20000: /* Begin */ 2573 case 20001: /* Commit */ 2574 case 20007: /* Abort */ 2575 case 20008: /* Release locks */ 2576 case 20010: /* Writev */ 2577 ND_PRINT((ndo, " tid")); 2578 UBIK_VERSIONOUT(); 2579 break; 2580 case 20002: /* Lock */ 2581 ND_PRINT((ndo, " tid")); 2582 UBIK_VERSIONOUT(); 2583 ND_PRINT((ndo, " file")); 2584 INTOUT(); 2585 ND_PRINT((ndo, " pos")); 2586 INTOUT(); 2587 ND_PRINT((ndo, " length")); 2588 INTOUT(); 2589 ND_TCHECK_32BITS(bp); 2590 temp = EXTRACT_32BITS(bp); 2591 bp += sizeof(int32_t); 2592 tok2str(ubik_lock_types, "type %d", temp); 2593 break; 2594 case 20003: /* Write */ 2595 ND_PRINT((ndo, " tid")); 2596 UBIK_VERSIONOUT(); 2597 ND_PRINT((ndo, " file")); 2598 INTOUT(); 2599 ND_PRINT((ndo, " pos")); 2600 INTOUT(); 2601 break; 2602 case 20005: /* Get file */ 2603 ND_PRINT((ndo, " file")); 2604 INTOUT(); 2605 break; 2606 case 20006: /* Send file */ 2607 ND_PRINT((ndo, " file")); 2608 INTOUT(); 2609 ND_PRINT((ndo, " length")); 2610 INTOUT(); 2611 ND_PRINT((ndo, " dbversion")); 2612 UBIK_VERSIONOUT(); 2613 break; 2614 case 20009: /* Truncate */ 2615 ND_PRINT((ndo, " tid")); 2616 UBIK_VERSIONOUT(); 2617 ND_PRINT((ndo, " file")); 2618 INTOUT(); 2619 ND_PRINT((ndo, " length")); 2620 INTOUT(); 2621 break; 2622 case 20012: /* Set version */ 2623 ND_PRINT((ndo, " tid")); 2624 UBIK_VERSIONOUT(); 2625 ND_PRINT((ndo, " oldversion")); 2626 UBIK_VERSIONOUT(); 2627 ND_PRINT((ndo, " newversion")); 2628 UBIK_VERSIONOUT(); 2629 break; 2630 default: 2631 ; 2632 } 2633 2634 return; 2635 2636trunc: 2637 ND_PRINT((ndo, " [|ubik]")); 2638} 2639 2640/* 2641 * Handle Ubik replies to any one of the replicated database services 2642 */ 2643 2644static void 2645ubik_reply_print(netdissect_options *ndo, 2646 register const u_char *bp, int length, int32_t opcode) 2647{ 2648 const struct rx_header *rxh; 2649 2650 if (length < (int)sizeof(struct rx_header)) 2651 return; 2652 2653 rxh = (const struct rx_header *) bp; 2654 2655 /* 2656 * Print out the ubik call we're invoking. This table was gleaned 2657 * from ubik/ubik_int.xg 2658 */ 2659 2660 ND_PRINT((ndo, " ubik reply %s", tok2str(ubik_req, "op#%d", opcode))); 2661 2662 bp += sizeof(struct rx_header); 2663 2664 /* 2665 * If it was a data packet, print out the arguments to the Ubik calls 2666 */ 2667 2668 if (rxh->type == RX_PACKET_TYPE_DATA) 2669 switch (opcode) { 2670 case 10000: /* Beacon */ 2671 ND_PRINT((ndo, " vote no")); 2672 break; 2673 case 20004: /* Get version */ 2674 ND_PRINT((ndo, " dbversion")); 2675 UBIK_VERSIONOUT(); 2676 break; 2677 default: 2678 ; 2679 } 2680 2681 /* 2682 * Otherwise, print out "yes" it it was a beacon packet (because 2683 * that's how yes votes are returned, go figure), otherwise 2684 * just print out the error code. 2685 */ 2686 2687 else 2688 switch (opcode) { 2689 case 10000: /* Beacon */ 2690 ND_PRINT((ndo, " vote yes until")); 2691 DATEOUT(); 2692 break; 2693 default: 2694 ND_PRINT((ndo, " errcode")); 2695 INTOUT(); 2696 } 2697 2698 return; 2699 2700trunc: 2701 ND_PRINT((ndo, " [|ubik]")); 2702} 2703 2704/* 2705 * Handle RX ACK packets. 2706 */ 2707 2708static void 2709rx_ack_print(netdissect_options *ndo, 2710 register const u_char *bp, int length) 2711{ 2712 const struct rx_ackPacket *rxa; 2713 int i, start, last; 2714 uint32_t firstPacket; 2715 2716 if (length < (int)sizeof(struct rx_header)) 2717 return; 2718 2719 bp += sizeof(struct rx_header); 2720 2721 /* 2722 * This may seem a little odd .... the rx_ackPacket structure 2723 * contains an array of individual packet acknowledgements 2724 * (used for selective ack/nack), but since it's variable in size, 2725 * we don't want to truncate based on the size of the whole 2726 * rx_ackPacket structure. 2727 */ 2728 2729 ND_TCHECK2(bp[0], sizeof(struct rx_ackPacket) - RX_MAXACKS); 2730 2731 rxa = (const struct rx_ackPacket *) bp; 2732 bp += (sizeof(struct rx_ackPacket) - RX_MAXACKS); 2733 2734 /* 2735 * Print out a few useful things from the ack packet structure 2736 */ 2737 2738 if (ndo->ndo_vflag > 2) 2739 ND_PRINT((ndo, " bufspace %d maxskew %d", 2740 (int) EXTRACT_16BITS(&rxa->bufferSpace), 2741 (int) EXTRACT_16BITS(&rxa->maxSkew))); 2742 2743 firstPacket = EXTRACT_32BITS(&rxa->firstPacket); 2744 ND_PRINT((ndo, " first %d serial %d reason %s", 2745 firstPacket, EXTRACT_32BITS(&rxa->serial), 2746 tok2str(rx_ack_reasons, "#%d", (int) rxa->reason))); 2747 2748 /* 2749 * Okay, now we print out the ack array. The way _this_ works 2750 * is that we start at "first", and step through the ack array. 2751 * If we have a contiguous range of acks/nacks, try to 2752 * collapse them into a range. 2753 * 2754 * If you're really clever, you might have noticed that this 2755 * doesn't seem quite correct. Specifically, due to structure 2756 * padding, sizeof(struct rx_ackPacket) - RX_MAXACKS won't actually 2757 * yield the start of the ack array (because RX_MAXACKS is 255 2758 * and the structure will likely get padded to a 2 or 4 byte 2759 * boundary). However, this is the way it's implemented inside 2760 * of AFS - the start of the extra fields are at 2761 * sizeof(struct rx_ackPacket) - RX_MAXACKS + nAcks, which _isn't_ 2762 * the exact start of the ack array. Sigh. That's why we aren't 2763 * using bp, but instead use rxa->acks[]. But nAcks gets added 2764 * to bp after this, so bp ends up at the right spot. Go figure. 2765 */ 2766 2767 if (rxa->nAcks != 0) { 2768 2769 ND_TCHECK2(bp[0], rxa->nAcks); 2770 2771 /* 2772 * Sigh, this is gross, but it seems to work to collapse 2773 * ranges correctly. 2774 */ 2775 2776 for (i = 0, start = last = -2; i < rxa->nAcks; i++) 2777 if (rxa->acks[i] == RX_ACK_TYPE_ACK) { 2778 2779 /* 2780 * I figured this deserved _some_ explanation. 2781 * First, print "acked" and the packet seq 2782 * number if this is the first time we've 2783 * seen an acked packet. 2784 */ 2785 2786 if (last == -2) { 2787 ND_PRINT((ndo, " acked %d", firstPacket + i)); 2788 start = i; 2789 } 2790 2791 /* 2792 * Otherwise, if there is a skip in 2793 * the range (such as an nacked packet in 2794 * the middle of some acked packets), 2795 * then print the current packet number 2796 * seperated from the last number by 2797 * a comma. 2798 */ 2799 2800 else if (last != i - 1) { 2801 ND_PRINT((ndo, ",%d", firstPacket + i)); 2802 start = i; 2803 } 2804 2805 /* 2806 * We always set last to the value of 2807 * the last ack we saw. Conversely, start 2808 * is set to the value of the first ack 2809 * we saw in a range. 2810 */ 2811 2812 last = i; 2813 2814 /* 2815 * Okay, this bit a code gets executed when 2816 * we hit a nack ... in _this_ case we 2817 * want to print out the range of packets 2818 * that were acked, so we need to print 2819 * the _previous_ packet number seperated 2820 * from the first by a dash (-). Since we 2821 * already printed the first packet above, 2822 * just print the final packet. Don't 2823 * do this if there will be a single-length 2824 * range. 2825 */ 2826 } else if (last == i - 1 && start != last) 2827 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2828 2829 /* 2830 * So, what's going on here? We ran off the end of the 2831 * ack list, and if we got a range we need to finish it up. 2832 * So we need to determine if the last packet in the list 2833 * was an ack (if so, then last will be set to it) and 2834 * we need to see if the last range didn't start with the 2835 * last packet (because if it _did_, then that would mean 2836 * that the packet number has already been printed and 2837 * we don't need to print it again). 2838 */ 2839 2840 if (last == i - 1 && start != last) 2841 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2842 2843 /* 2844 * Same as above, just without comments 2845 */ 2846 2847 for (i = 0, start = last = -2; i < rxa->nAcks; i++) 2848 if (rxa->acks[i] == RX_ACK_TYPE_NACK) { 2849 if (last == -2) { 2850 ND_PRINT((ndo, " nacked %d", firstPacket + i)); 2851 start = i; 2852 } else if (last != i - 1) { 2853 ND_PRINT((ndo, ",%d", firstPacket + i)); 2854 start = i; 2855 } 2856 last = i; 2857 } else if (last == i - 1 && start != last) 2858 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2859 2860 if (last == i - 1 && start != last) 2861 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2862 2863 bp += rxa->nAcks; 2864 } 2865 2866 2867 /* 2868 * These are optional fields; depending on your version of AFS, 2869 * you may or may not see them 2870 */ 2871 2872#define TRUNCRET(n) if (ndo->ndo_snapend - bp + 1 <= n) return; 2873 2874 if (ndo->ndo_vflag > 1) { 2875 TRUNCRET(4); 2876 ND_PRINT((ndo, " ifmtu")); 2877 INTOUT(); 2878 2879 TRUNCRET(4); 2880 ND_PRINT((ndo, " maxmtu")); 2881 INTOUT(); 2882 2883 TRUNCRET(4); 2884 ND_PRINT((ndo, " rwind")); 2885 INTOUT(); 2886 2887 TRUNCRET(4); 2888 ND_PRINT((ndo, " maxpackets")); 2889 INTOUT(); 2890 } 2891 2892 return; 2893 2894trunc: 2895 ND_PRINT((ndo, " [|ack]")); 2896} 2897#undef TRUNCRET 2898