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