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 #include <sys/cdefs.h> 39 #ifndef lint 40 __RCSID("$NetBSD: print-rx.c,v 1.8 2017/09/08 14:01:13 christos Exp $"); 41 #endif 42 43 #ifdef HAVE_CONFIG_H 44 #include "config.h" 45 #endif 46 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <netdissect-stdinc.h> 51 52 #include "netdissect.h" 53 #include "addrtoname.h" 54 #include "extract.h" 55 56 #include "ip.h" 57 58 #define FS_RX_PORT 7000 59 #define CB_RX_PORT 7001 60 #define PROT_RX_PORT 7002 61 #define VLDB_RX_PORT 7003 62 #define KAUTH_RX_PORT 7004 63 #define VOL_RX_PORT 7005 64 #define ERROR_RX_PORT 7006 /* Doesn't seem to be used */ 65 #define BOS_RX_PORT 7007 66 67 #define AFSNAMEMAX 256 68 #define AFSOPAQUEMAX 1024 69 #define PRNAMEMAX 64 70 #define VLNAMEMAX 65 71 #define KANAMEMAX 64 72 #define BOSNAMEMAX 256 73 74 #define PRSFS_READ 1 /* Read files */ 75 #define PRSFS_WRITE 2 /* Write files */ 76 #define PRSFS_INSERT 4 /* Insert files into a directory */ 77 #define PRSFS_LOOKUP 8 /* Lookup files into a directory */ 78 #define PRSFS_DELETE 16 /* Delete files */ 79 #define PRSFS_LOCK 32 /* Lock files */ 80 #define PRSFS_ADMINISTER 64 /* Change ACL's */ 81 82 struct rx_header { 83 nd_uint32_t epoch; 84 nd_uint32_t cid; 85 nd_uint32_t callNumber; 86 nd_uint32_t seq; 87 nd_uint32_t serial; 88 nd_uint8_t type; 89 #define RX_PACKET_TYPE_DATA 1 90 #define RX_PACKET_TYPE_ACK 2 91 #define RX_PACKET_TYPE_BUSY 3 92 #define RX_PACKET_TYPE_ABORT 4 93 #define RX_PACKET_TYPE_ACKALL 5 94 #define RX_PACKET_TYPE_CHALLENGE 6 95 #define RX_PACKET_TYPE_RESPONSE 7 96 #define RX_PACKET_TYPE_DEBUG 8 97 #define RX_PACKET_TYPE_PARAMS 9 98 #define RX_PACKET_TYPE_VERSION 13 99 nd_uint8_t flags; 100 #define RX_CLIENT_INITIATED 1 101 #define RX_REQUEST_ACK 2 102 #define RX_LAST_PACKET 4 103 #define RX_MORE_PACKETS 8 104 #define RX_FREE_PACKET 16 105 #define RX_SLOW_START_OK 32 106 #define RX_JUMBO_PACKET 32 107 nd_uint8_t userStatus; 108 nd_uint8_t securityIndex; 109 nd_uint16_t spare; /* How clever: even though the AFS */ 110 nd_uint16_t serviceId; /* header files indicate that the */ 111 }; /* serviceId is first, it's really */ 112 /* encoded _after_ the spare field */ 113 /* I wasted a day figuring that out! */ 114 115 #define NUM_RX_FLAGS 7 116 117 #define RX_MAXACKS 255 118 119 struct rx_ackPacket { 120 uint16_t bufferSpace; /* Number of packet buffers available */ 121 uint16_t maxSkew; /* Max diff between ack'd packet and */ 122 /* highest packet received */ 123 uint32_t firstPacket; /* The first packet in ack list */ 124 uint32_t previousPacket; /* Previous packet recv'd (obsolete) */ 125 uint32_t serial; /* # of packet that prompted the ack */ 126 uint8_t reason; /* Reason for acknowledgement */ 127 uint8_t nAcks; /* Number of acknowledgements */ 128 uint8_t acks[RX_MAXACKS]; /* Up to RX_MAXACKS acknowledgements */ 129 }; 130 131 /* 132 * Values for the acks array 133 */ 134 135 #define RX_ACK_TYPE_NACK 0 /* Don't have this packet */ 136 #define RX_ACK_TYPE_ACK 1 /* I have this packet */ 137 138 static const struct tok rx_types[] = { 139 { RX_PACKET_TYPE_DATA, "data" }, 140 { RX_PACKET_TYPE_ACK, "ack" }, 141 { RX_PACKET_TYPE_BUSY, "busy" }, 142 { RX_PACKET_TYPE_ABORT, "abort" }, 143 { RX_PACKET_TYPE_ACKALL, "ackall" }, 144 { RX_PACKET_TYPE_CHALLENGE, "challenge" }, 145 { RX_PACKET_TYPE_RESPONSE, "response" }, 146 { RX_PACKET_TYPE_DEBUG, "debug" }, 147 { RX_PACKET_TYPE_PARAMS, "params" }, 148 { RX_PACKET_TYPE_VERSION, "version" }, 149 { 0, NULL }, 150 }; 151 152 static const struct double_tok { 153 int flag; /* Rx flag */ 154 int packetType; /* Packet type */ 155 const char *s; /* Flag string */ 156 } rx_flags[] = { 157 { RX_CLIENT_INITIATED, 0, "client-init" }, 158 { RX_REQUEST_ACK, 0, "req-ack" }, 159 { RX_LAST_PACKET, 0, "last-pckt" }, 160 { RX_MORE_PACKETS, 0, "more-pckts" }, 161 { RX_FREE_PACKET, 0, "free-pckt" }, 162 { RX_SLOW_START_OK, RX_PACKET_TYPE_ACK, "slow-start" }, 163 { RX_JUMBO_PACKET, RX_PACKET_TYPE_DATA, "jumbogram" } 164 }; 165 166 static const struct tok fs_req[] = { 167 { 130, "fetch-data" }, 168 { 131, "fetch-acl" }, 169 { 132, "fetch-status" }, 170 { 133, "store-data" }, 171 { 134, "store-acl" }, 172 { 135, "store-status" }, 173 { 136, "remove-file" }, 174 { 137, "create-file" }, 175 { 138, "rename" }, 176 { 139, "symlink" }, 177 { 140, "link" }, 178 { 141, "makedir" }, 179 { 142, "rmdir" }, 180 { 143, "oldsetlock" }, 181 { 144, "oldextlock" }, 182 { 145, "oldrellock" }, 183 { 146, "get-stats" }, 184 { 147, "give-cbs" }, 185 { 148, "get-vlinfo" }, 186 { 149, "get-vlstats" }, 187 { 150, "set-vlstats" }, 188 { 151, "get-rootvl" }, 189 { 152, "check-token" }, 190 { 153, "get-time" }, 191 { 154, "nget-vlinfo" }, 192 { 155, "bulk-stat" }, 193 { 156, "setlock" }, 194 { 157, "extlock" }, 195 { 158, "rellock" }, 196 { 159, "xstat-ver" }, 197 { 160, "get-xstat" }, 198 { 161, "dfs-lookup" }, 199 { 162, "dfs-flushcps" }, 200 { 163, "dfs-symlink" }, 201 { 220, "residency" }, 202 { 65536, "inline-bulk-status" }, 203 { 65537, "fetch-data-64" }, 204 { 65538, "store-data-64" }, 205 { 65539, "give-up-all-cbs" }, 206 { 65540, "get-caps" }, 207 { 65541, "cb-rx-conn-addr" }, 208 { 0, NULL }, 209 }; 210 211 static const struct tok cb_req[] = { 212 { 204, "callback" }, 213 { 205, "initcb" }, 214 { 206, "probe" }, 215 { 207, "getlock" }, 216 { 208, "getce" }, 217 { 209, "xstatver" }, 218 { 210, "getxstat" }, 219 { 211, "initcb2" }, 220 { 212, "whoareyou" }, 221 { 213, "initcb3" }, 222 { 214, "probeuuid" }, 223 { 215, "getsrvprefs" }, 224 { 216, "getcellservdb" }, 225 { 217, "getlocalcell" }, 226 { 218, "getcacheconf" }, 227 { 65536, "getce64" }, 228 { 65537, "getcellbynum" }, 229 { 65538, "tellmeaboutyourself" }, 230 { 0, NULL }, 231 }; 232 233 static const struct tok pt_req[] = { 234 { 500, "new-user" }, 235 { 501, "where-is-it" }, 236 { 502, "dump-entry" }, 237 { 503, "add-to-group" }, 238 { 504, "name-to-id" }, 239 { 505, "id-to-name" }, 240 { 506, "delete" }, 241 { 507, "remove-from-group" }, 242 { 508, "get-cps" }, 243 { 509, "new-entry" }, 244 { 510, "list-max" }, 245 { 511, "set-max" }, 246 { 512, "list-entry" }, 247 { 513, "change-entry" }, 248 { 514, "list-elements" }, 249 { 515, "same-mbr-of" }, 250 { 516, "set-fld-sentry" }, 251 { 517, "list-owned" }, 252 { 518, "get-cps2" }, 253 { 519, "get-host-cps" }, 254 { 520, "update-entry" }, 255 { 521, "list-entries" }, 256 { 530, "list-super-groups" }, 257 { 0, NULL }, 258 }; 259 260 static const struct tok vldb_req[] = { 261 { 501, "create-entry" }, 262 { 502, "delete-entry" }, 263 { 503, "get-entry-by-id" }, 264 { 504, "get-entry-by-name" }, 265 { 505, "get-new-volume-id" }, 266 { 506, "replace-entry" }, 267 { 507, "update-entry" }, 268 { 508, "setlock" }, 269 { 509, "releaselock" }, 270 { 510, "list-entry" }, 271 { 511, "list-attrib" }, 272 { 512, "linked-list" }, 273 { 513, "get-stats" }, 274 { 514, "probe" }, 275 { 515, "get-addrs" }, 276 { 516, "change-addr" }, 277 { 517, "create-entry-n" }, 278 { 518, "get-entry-by-id-n" }, 279 { 519, "get-entry-by-name-n" }, 280 { 520, "replace-entry-n" }, 281 { 521, "list-entry-n" }, 282 { 522, "list-attrib-n" }, 283 { 523, "linked-list-n" }, 284 { 524, "update-entry-by-name" }, 285 { 525, "create-entry-u" }, 286 { 526, "get-entry-by-id-u" }, 287 { 527, "get-entry-by-name-u" }, 288 { 528, "replace-entry-u" }, 289 { 529, "list-entry-u" }, 290 { 530, "list-attrib-u" }, 291 { 531, "linked-list-u" }, 292 { 532, "regaddr" }, 293 { 533, "get-addrs-u" }, 294 { 534, "list-attrib-n2" }, 295 { 0, NULL }, 296 }; 297 298 static const struct tok kauth_req[] = { 299 { 1, "auth-old" }, 300 { 21, "authenticate" }, 301 { 22, "authenticate-v2" }, 302 { 2, "change-pw" }, 303 { 3, "get-ticket-old" }, 304 { 23, "get-ticket" }, 305 { 4, "set-pw" }, 306 { 5, "set-fields" }, 307 { 6, "create-user" }, 308 { 7, "delete-user" }, 309 { 8, "get-entry" }, 310 { 9, "list-entry" }, 311 { 10, "get-stats" }, 312 { 11, "debug" }, 313 { 12, "get-pw" }, 314 { 13, "get-random-key" }, 315 { 14, "unlock" }, 316 { 15, "lock-status" }, 317 { 0, NULL }, 318 }; 319 320 static const struct tok vol_req[] = { 321 { 100, "create-volume" }, 322 { 101, "delete-volume" }, 323 { 102, "restore" }, 324 { 103, "forward" }, 325 { 104, "end-trans" }, 326 { 105, "clone" }, 327 { 106, "set-flags" }, 328 { 107, "get-flags" }, 329 { 108, "trans-create" }, 330 { 109, "dump" }, 331 { 110, "get-nth-volume" }, 332 { 111, "set-forwarding" }, 333 { 112, "get-name" }, 334 { 113, "get-status" }, 335 { 114, "sig-restore" }, 336 { 115, "list-partitions" }, 337 { 116, "list-volumes" }, 338 { 117, "set-id-types" }, 339 { 118, "monitor" }, 340 { 119, "partition-info" }, 341 { 120, "reclone" }, 342 { 121, "list-one-volume" }, 343 { 122, "nuke" }, 344 { 123, "set-date" }, 345 { 124, "x-list-volumes" }, 346 { 125, "x-list-one-volume" }, 347 { 126, "set-info" }, 348 { 127, "x-list-partitions" }, 349 { 128, "forward-multiple" }, 350 { 65536, "convert-ro" }, 351 { 65537, "get-size" }, 352 { 65538, "dump-v2" }, 353 { 0, NULL }, 354 }; 355 356 static const struct tok bos_req[] = { 357 { 80, "create-bnode" }, 358 { 81, "delete-bnode" }, 359 { 82, "set-status" }, 360 { 83, "get-status" }, 361 { 84, "enumerate-instance" }, 362 { 85, "get-instance-info" }, 363 { 86, "get-instance-parm" }, 364 { 87, "add-superuser" }, 365 { 88, "delete-superuser" }, 366 { 89, "list-superusers" }, 367 { 90, "list-keys" }, 368 { 91, "add-key" }, 369 { 92, "delete-key" }, 370 { 93, "set-cell-name" }, 371 { 94, "get-cell-name" }, 372 { 95, "get-cell-host" }, 373 { 96, "add-cell-host" }, 374 { 97, "delete-cell-host" }, 375 { 98, "set-t-status" }, 376 { 99, "shutdown-all" }, 377 { 100, "restart-all" }, 378 { 101, "startup-all" }, 379 { 102, "set-noauth-flag" }, 380 { 103, "re-bozo" }, 381 { 104, "restart" }, 382 { 105, "start-bozo-install" }, 383 { 106, "uninstall" }, 384 { 107, "get-dates" }, 385 { 108, "exec" }, 386 { 109, "prune" }, 387 { 110, "set-restart-time" }, 388 { 111, "get-restart-time" }, 389 { 112, "start-bozo-log" }, 390 { 113, "wait-all" }, 391 { 114, "get-instance-strings" }, 392 { 115, "get-restricted" }, 393 { 116, "set-restricted" }, 394 { 0, NULL }, 395 }; 396 397 static const struct tok ubik_req[] = { 398 { 10000, "vote-beacon" }, 399 { 10001, "vote-debug-old" }, 400 { 10002, "vote-sdebug-old" }, 401 { 10003, "vote-getsyncsite" }, 402 { 10004, "vote-debug" }, 403 { 10005, "vote-sdebug" }, 404 { 10006, "vote-xdebug" }, 405 { 10007, "vote-xsdebug" }, 406 { 20000, "disk-begin" }, 407 { 20001, "disk-commit" }, 408 { 20002, "disk-lock" }, 409 { 20003, "disk-write" }, 410 { 20004, "disk-getversion" }, 411 { 20005, "disk-getfile" }, 412 { 20006, "disk-sendfile" }, 413 { 20007, "disk-abort" }, 414 { 20008, "disk-releaselocks" }, 415 { 20009, "disk-truncate" }, 416 { 20010, "disk-probe" }, 417 { 20011, "disk-writev" }, 418 { 20012, "disk-interfaceaddr" }, 419 { 20013, "disk-setversion" }, 420 { 0, NULL }, 421 }; 422 423 #define VOTE_LOW 10000 424 #define VOTE_HIGH 10007 425 #define DISK_LOW 20000 426 #define DISK_HIGH 20013 427 428 static const struct tok cb_types[] = { 429 { 1, "exclusive" }, 430 { 2, "shared" }, 431 { 3, "dropped" }, 432 { 0, NULL }, 433 }; 434 435 static const struct tok ubik_lock_types[] = { 436 { 1, "read" }, 437 { 2, "write" }, 438 { 3, "wait" }, 439 { 0, NULL }, 440 }; 441 442 static const char *voltype[] = { "read-write", "read-only", "backup" }; 443 444 static const struct tok afs_fs_errors[] = { 445 { 101, "salvage volume" }, 446 { 102, "no such vnode" }, 447 { 103, "no such volume" }, 448 { 104, "volume exist" }, 449 { 105, "no service" }, 450 { 106, "volume offline" }, 451 { 107, "voline online" }, 452 { 108, "diskfull" }, 453 { 109, "diskquota exceeded" }, 454 { 110, "volume busy" }, 455 { 111, "volume moved" }, 456 { 112, "AFS IO error" }, 457 { 0xffffff9c, "restarting fileserver" }, /* -100, sic! */ 458 { 0, NULL } 459 }; 460 461 /* 462 * Reasons for acknowledging a packet 463 */ 464 465 static const struct tok rx_ack_reasons[] = { 466 { 1, "ack requested" }, 467 { 2, "duplicate packet" }, 468 { 3, "out of sequence" }, 469 { 4, "exceeds window" }, 470 { 5, "no buffer space" }, 471 { 6, "ping" }, 472 { 7, "ping response" }, 473 { 8, "delay" }, 474 { 9, "idle" }, 475 { 0, NULL }, 476 }; 477 478 /* 479 * Cache entries we keep around so we can figure out the RX opcode 480 * numbers for replies. This allows us to make sense of RX reply packets. 481 */ 482 483 struct rx_cache_entry { 484 uint32_t callnum; /* Call number (net order) */ 485 struct in_addr client; /* client IP address (net order) */ 486 struct in_addr server; /* server IP address (net order) */ 487 int dport; /* server port (host order) */ 488 u_short serviceId; /* Service identifier (net order) */ 489 uint32_t opcode; /* RX opcode (host order) */ 490 }; 491 492 #define RX_CACHE_SIZE 64 493 494 static struct rx_cache_entry rx_cache[RX_CACHE_SIZE]; 495 496 static int rx_cache_next = 0; 497 static int rx_cache_hint = 0; 498 static void rx_cache_insert(netdissect_options *, const u_char *, const struct ip *, int); 499 static int rx_cache_find(const struct rx_header *, const struct ip *, 500 int, int32_t *); 501 502 static void fs_print(netdissect_options *, const u_char *, int); 503 static void fs_reply_print(netdissect_options *, const u_char *, int, int32_t); 504 static void acl_print(netdissect_options *, u_char *, int, u_char *); 505 static void cb_print(netdissect_options *, const u_char *, int); 506 static void cb_reply_print(netdissect_options *, const u_char *, int, int32_t); 507 static void prot_print(netdissect_options *, const u_char *, int); 508 static void prot_reply_print(netdissect_options *, const u_char *, int, int32_t); 509 static void vldb_print(netdissect_options *, const u_char *, int); 510 static void vldb_reply_print(netdissect_options *, const u_char *, int, int32_t); 511 static void kauth_print(netdissect_options *, const u_char *, int); 512 static void kauth_reply_print(netdissect_options *, const u_char *, int, int32_t); 513 static void vol_print(netdissect_options *, const u_char *, int); 514 static void vol_reply_print(netdissect_options *, const u_char *, int, int32_t); 515 static void bos_print(netdissect_options *, const u_char *, int); 516 static void bos_reply_print(netdissect_options *, const u_char *, int, int32_t); 517 static void ubik_print(netdissect_options *, const u_char *); 518 static void ubik_reply_print(netdissect_options *, const u_char *, int, int32_t); 519 520 static void rx_ack_print(netdissect_options *, const u_char *, int); 521 522 static int is_ubik(uint32_t); 523 524 /* 525 * Handle the rx-level packet. See if we know what port it's going to so 526 * we can peek at the afs call inside 527 */ 528 529 void 530 rx_print(netdissect_options *ndo, 531 register const u_char *bp, int length, int sport, int dport, 532 const u_char *bp2) 533 { 534 register const struct rx_header *rxh; 535 int i; 536 int32_t opcode; 537 538 if (ndo->ndo_snapend - bp < (int)sizeof (struct rx_header)) { 539 ND_PRINT((ndo, " [|rx] (%d)", length)); 540 return; 541 } 542 543 rxh = (const struct rx_header *) bp; 544 545 ND_PRINT((ndo, " rx %s", tok2str(rx_types, "type %d", rxh->type))); 546 547 if (ndo->ndo_vflag) { 548 int firstflag = 0; 549 550 if (ndo->ndo_vflag > 1) 551 ND_PRINT((ndo, " cid %08x call# %d", 552 (int) EXTRACT_32BITS(&rxh->cid), 553 (int) EXTRACT_32BITS(&rxh->callNumber))); 554 555 ND_PRINT((ndo, " seq %d ser %d", 556 (int) EXTRACT_32BITS(&rxh->seq), 557 (int) EXTRACT_32BITS(&rxh->serial))); 558 559 if (ndo->ndo_vflag > 2) 560 ND_PRINT((ndo, " secindex %d serviceid %hu", 561 (int) rxh->securityIndex, 562 EXTRACT_16BITS(&rxh->serviceId))); 563 564 if (ndo->ndo_vflag > 1) 565 for (i = 0; i < NUM_RX_FLAGS; i++) { 566 if (rxh->flags & rx_flags[i].flag && 567 (!rx_flags[i].packetType || 568 rxh->type == rx_flags[i].packetType)) { 569 if (!firstflag) { 570 firstflag = 1; 571 ND_PRINT((ndo, " ")); 572 } else { 573 ND_PRINT((ndo, ",")); 574 } 575 ND_PRINT((ndo, "<%s>", rx_flags[i].s)); 576 } 577 } 578 } 579 580 /* 581 * Try to handle AFS calls that we know about. Check the destination 582 * port and make sure it's a data packet. Also, make sure the 583 * seq number is 1 (because otherwise it's a continuation packet, 584 * and we can't interpret that). Also, seems that reply packets 585 * do not have the client-init flag set, so we check for that 586 * as well. 587 */ 588 589 if (rxh->type == RX_PACKET_TYPE_DATA && 590 EXTRACT_32BITS(&rxh->seq) == 1 && 591 rxh->flags & RX_CLIENT_INITIATED) { 592 593 /* 594 * Insert this call into the call cache table, so we 595 * have a chance to print out replies 596 */ 597 598 rx_cache_insert(ndo, bp, (const struct ip *) bp2, dport); 599 600 switch (dport) { 601 case FS_RX_PORT: /* AFS file service */ 602 fs_print(ndo, bp, length); 603 break; 604 case CB_RX_PORT: /* AFS callback service */ 605 cb_print(ndo, bp, length); 606 break; 607 case PROT_RX_PORT: /* AFS protection service */ 608 prot_print(ndo, bp, length); 609 break; 610 case VLDB_RX_PORT: /* AFS VLDB service */ 611 vldb_print(ndo, bp, length); 612 break; 613 case KAUTH_RX_PORT: /* AFS Kerberos auth service */ 614 kauth_print(ndo, bp, length); 615 break; 616 case VOL_RX_PORT: /* AFS Volume service */ 617 vol_print(ndo, bp, length); 618 break; 619 case BOS_RX_PORT: /* AFS BOS service */ 620 bos_print(ndo, bp, length); 621 break; 622 default: 623 ; 624 } 625 626 /* 627 * If it's a reply (client-init is _not_ set, but seq is one) 628 * then look it up in the cache. If we find it, call the reply 629 * printing functions Note that we handle abort packets here, 630 * because printing out the return code can be useful at times. 631 */ 632 633 } else if (((rxh->type == RX_PACKET_TYPE_DATA && 634 EXTRACT_32BITS(&rxh->seq) == 1) || 635 rxh->type == RX_PACKET_TYPE_ABORT) && 636 (rxh->flags & RX_CLIENT_INITIATED) == 0 && 637 rx_cache_find(rxh, (const struct ip *) bp2, 638 sport, &opcode)) { 639 640 switch (sport) { 641 case FS_RX_PORT: /* AFS file service */ 642 fs_reply_print(ndo, bp, length, opcode); 643 break; 644 case CB_RX_PORT: /* AFS callback service */ 645 cb_reply_print(ndo, bp, length, opcode); 646 break; 647 case PROT_RX_PORT: /* AFS PT service */ 648 prot_reply_print(ndo, bp, length, opcode); 649 break; 650 case VLDB_RX_PORT: /* AFS VLDB service */ 651 vldb_reply_print(ndo, bp, length, opcode); 652 break; 653 case KAUTH_RX_PORT: /* AFS Kerberos auth service */ 654 kauth_reply_print(ndo, bp, length, opcode); 655 break; 656 case VOL_RX_PORT: /* AFS Volume service */ 657 vol_reply_print(ndo, bp, length, opcode); 658 break; 659 case BOS_RX_PORT: /* AFS BOS service */ 660 bos_reply_print(ndo, bp, length, opcode); 661 break; 662 default: 663 ; 664 } 665 666 /* 667 * If it's an RX ack packet, then use the appropriate ack decoding 668 * function (there isn't any service-specific information in the 669 * ack packet, so we can use one for all AFS services) 670 */ 671 672 } else if (rxh->type == RX_PACKET_TYPE_ACK) 673 rx_ack_print(ndo, bp, length); 674 675 676 ND_PRINT((ndo, " (%d)", length)); 677 } 678 679 /* 680 * Insert an entry into the cache. Taken from print-nfs.c 681 */ 682 683 static void 684 rx_cache_insert(netdissect_options *ndo, 685 const u_char *bp, const struct ip *ip, int dport) 686 { 687 struct rx_cache_entry *rxent; 688 const struct rx_header *rxh = (const struct rx_header *) bp; 689 690 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) 691 return; 692 693 rxent = &rx_cache[rx_cache_next]; 694 695 if (++rx_cache_next >= RX_CACHE_SIZE) 696 rx_cache_next = 0; 697 698 rxent->callnum = EXTRACT_32BITS(&rxh->callNumber); 699 UNALIGNED_MEMCPY(&rxent->client, &ip->ip_src, sizeof(uint32_t)); 700 UNALIGNED_MEMCPY(&rxent->server, &ip->ip_dst, sizeof(uint32_t)); 701 rxent->dport = dport; 702 rxent->serviceId = EXTRACT_32BITS(&rxh->serviceId); 703 rxent->opcode = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 704 } 705 706 /* 707 * Lookup an entry in the cache. Also taken from print-nfs.c 708 * 709 * Note that because this is a reply, we're looking at the _source_ 710 * port. 711 */ 712 713 static int 714 rx_cache_find(const struct rx_header *rxh, const struct ip *ip, int sport, 715 int32_t *opcode) 716 { 717 int i; 718 struct rx_cache_entry *rxent; 719 uint32_t clip; 720 uint32_t sip; 721 722 UNALIGNED_MEMCPY(&clip, &ip->ip_dst, sizeof(uint32_t)); 723 UNALIGNED_MEMCPY(&sip, &ip->ip_src, sizeof(uint32_t)); 724 725 /* Start the search where we last left off */ 726 727 i = rx_cache_hint; 728 do { 729 rxent = &rx_cache[i]; 730 if (rxent->callnum == EXTRACT_32BITS(&rxh->callNumber) && 731 rxent->client.s_addr == clip && 732 rxent->server.s_addr == sip && 733 rxent->serviceId == EXTRACT_32BITS(&rxh->serviceId) && 734 rxent->dport == sport) { 735 736 /* We got a match! */ 737 738 rx_cache_hint = i; 739 *opcode = rxent->opcode; 740 return(1); 741 } 742 if (++i >= RX_CACHE_SIZE) 743 i = 0; 744 } while (i != rx_cache_hint); 745 746 /* Our search failed */ 747 return(0); 748 } 749 750 /* 751 * These extrememly grody macros handle the printing of various AFS stuff. 752 */ 753 754 #define FIDOUT() { unsigned long n1, n2, n3; \ 755 ND_TCHECK2(bp[0], sizeof(int32_t) * 3); \ 756 n1 = EXTRACT_32BITS(bp); \ 757 bp += sizeof(int32_t); \ 758 n2 = EXTRACT_32BITS(bp); \ 759 bp += sizeof(int32_t); \ 760 n3 = EXTRACT_32BITS(bp); \ 761 bp += sizeof(int32_t); \ 762 ND_PRINT((ndo, " fid %d/%d/%d", (int) n1, (int) n2, (int) n3)); \ 763 } 764 765 #define STROUT(MAX) { unsigned int _i; \ 766 ND_TCHECK2(bp[0], sizeof(int32_t)); \ 767 _i = EXTRACT_32BITS(bp); \ 768 if (_i > (MAX)) \ 769 goto trunc; \ 770 bp += sizeof(int32_t); \ 771 ND_PRINT((ndo, " \"")); \ 772 if (fn_printn(ndo, bp, _i, ndo->ndo_snapend)) \ 773 goto trunc; \ 774 ND_PRINT((ndo, "\"")); \ 775 bp += ((_i + sizeof(int32_t) - 1) / sizeof(int32_t)) * sizeof(int32_t); \ 776 } 777 778 #define INTOUT() { int _i; \ 779 ND_TCHECK2(bp[0], sizeof(int32_t)); \ 780 _i = (int) EXTRACT_32BITS(bp); \ 781 bp += sizeof(int32_t); \ 782 ND_PRINT((ndo, " %d", _i)); \ 783 } 784 785 #define UINTOUT() { unsigned long _i; \ 786 ND_TCHECK2(bp[0], sizeof(int32_t)); \ 787 _i = EXTRACT_32BITS(bp); \ 788 bp += sizeof(int32_t); \ 789 ND_PRINT((ndo, " %lu", _i)); \ 790 } 791 792 #define UINT64OUT() { uint64_t _i; \ 793 ND_TCHECK2(bp[0], sizeof(uint64_t)); \ 794 _i = EXTRACT_64BITS(bp); \ 795 bp += sizeof(uint64_t); \ 796 ND_PRINT((ndo, " %" PRIu64, _i)); \ 797 } 798 799 #define DATEOUT() { time_t _t; struct tm *tm; char str[256]; \ 800 ND_TCHECK2(bp[0], sizeof(int32_t)); \ 801 _t = (time_t) EXTRACT_32BITS(bp); \ 802 bp += sizeof(int32_t); \ 803 tm = localtime(&_t); \ 804 strftime(str, 256, "%Y/%m/%d %H:%M:%S", tm); \ 805 ND_PRINT((ndo, " %s", str)); \ 806 } 807 808 #define STOREATTROUT() { unsigned long mask, _i; \ 809 ND_TCHECK2(bp[0], (sizeof(int32_t)*6)); \ 810 mask = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \ 811 if (mask) ND_PRINT((ndo, " StoreStatus")); \ 812 if (mask & 1) { ND_PRINT((ndo, " date")); DATEOUT(); } \ 813 else bp += sizeof(int32_t); \ 814 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \ 815 if (mask & 2) ND_PRINT((ndo, " owner %lu", _i)); \ 816 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \ 817 if (mask & 4) ND_PRINT((ndo, " group %lu", _i)); \ 818 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \ 819 if (mask & 8) ND_PRINT((ndo, " mode %lo", _i & 07777)); \ 820 _i = EXTRACT_32BITS(bp); bp += sizeof(int32_t); \ 821 if (mask & 16) ND_PRINT((ndo, " segsize %lu", _i)); \ 822 /* undocumented in 3.3 docu */ \ 823 if (mask & 1024) ND_PRINT((ndo, " fsync")); \ 824 } 825 826 #define UBIK_VERSIONOUT() {int32_t epoch; int32_t counter; \ 827 ND_TCHECK2(bp[0], sizeof(int32_t) * 2); \ 828 epoch = EXTRACT_32BITS(bp); \ 829 bp += sizeof(int32_t); \ 830 counter = EXTRACT_32BITS(bp); \ 831 bp += sizeof(int32_t); \ 832 ND_PRINT((ndo, " %d.%d", epoch, counter)); \ 833 } 834 835 #define AFSUUIDOUT() {uint32_t temp; int _i; \ 836 ND_TCHECK2(bp[0], 11*sizeof(uint32_t)); \ 837 temp = EXTRACT_32BITS(bp); \ 838 bp += sizeof(uint32_t); \ 839 ND_PRINT((ndo, " %08x", temp)); \ 840 temp = EXTRACT_32BITS(bp); \ 841 bp += sizeof(uint32_t); \ 842 ND_PRINT((ndo, "%04x", temp)); \ 843 temp = EXTRACT_32BITS(bp); \ 844 bp += sizeof(uint32_t); \ 845 ND_PRINT((ndo, "%04x", temp)); \ 846 for (_i = 0; _i < 8; _i++) { \ 847 temp = EXTRACT_32BITS(bp); \ 848 bp += sizeof(uint32_t); \ 849 ND_PRINT((ndo, "%02x", (unsigned char) temp)); \ 850 } \ 851 } 852 853 /* 854 * This is the sickest one of all 855 */ 856 857 #define VECOUT(MAX) { u_char *sp; \ 858 u_char s[AFSNAMEMAX]; \ 859 int k; \ 860 if ((MAX) + 1 > sizeof(s)) \ 861 goto trunc; \ 862 ND_TCHECK2(bp[0], (MAX) * sizeof(int32_t)); \ 863 sp = s; \ 864 for (k = 0; k < (MAX); k++) { \ 865 *sp++ = (u_char) EXTRACT_32BITS(bp); \ 866 bp += sizeof(int32_t); \ 867 } \ 868 s[(MAX)] = '\0'; \ 869 ND_PRINT((ndo, " \"")); \ 870 fn_print(ndo, s, NULL); \ 871 ND_PRINT((ndo, "\"")); \ 872 } 873 874 #define DESTSERVEROUT() { unsigned long n1, n2, n3; \ 875 ND_TCHECK2(bp[0], sizeof(int32_t) * 3); \ 876 n1 = EXTRACT_32BITS(bp); \ 877 bp += sizeof(int32_t); \ 878 n2 = EXTRACT_32BITS(bp); \ 879 bp += sizeof(int32_t); \ 880 n3 = EXTRACT_32BITS(bp); \ 881 bp += sizeof(int32_t); \ 882 ND_PRINT((ndo, " server %d:%d:%d", (int) n1, (int) n2, (int) n3)); \ 883 } 884 885 /* 886 * Handle calls to the AFS file service (fs) 887 */ 888 889 static void 890 fs_print(netdissect_options *ndo, 891 register const u_char *bp, int length) 892 { 893 int fs_op; 894 unsigned long i; 895 896 if (length <= (int)sizeof(struct rx_header)) 897 return; 898 899 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 900 goto trunc; 901 } 902 903 /* 904 * Print out the afs call we're invoking. The table used here was 905 * gleaned from fsint/afsint.xg 906 */ 907 908 fs_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 909 910 ND_PRINT((ndo, " fs call %s", tok2str(fs_req, "op#%d", fs_op))); 911 912 /* 913 * Print out arguments to some of the AFS calls. This stuff is 914 * all from afsint.xg 915 */ 916 917 bp += sizeof(struct rx_header) + 4; 918 919 /* 920 * Sigh. This is gross. Ritchie forgive me. 921 */ 922 923 switch (fs_op) { 924 case 130: /* Fetch data */ 925 FIDOUT(); 926 ND_PRINT((ndo, " offset")); 927 UINTOUT(); 928 ND_PRINT((ndo, " length")); 929 UINTOUT(); 930 break; 931 case 131: /* Fetch ACL */ 932 case 132: /* Fetch Status */ 933 case 143: /* Old set lock */ 934 case 144: /* Old extend lock */ 935 case 145: /* Old release lock */ 936 case 156: /* Set lock */ 937 case 157: /* Extend lock */ 938 case 158: /* Release lock */ 939 FIDOUT(); 940 break; 941 case 135: /* Store status */ 942 FIDOUT(); 943 STOREATTROUT(); 944 break; 945 case 133: /* Store data */ 946 FIDOUT(); 947 STOREATTROUT(); 948 ND_PRINT((ndo, " offset")); 949 UINTOUT(); 950 ND_PRINT((ndo, " length")); 951 UINTOUT(); 952 ND_PRINT((ndo, " flen")); 953 UINTOUT(); 954 break; 955 case 134: /* Store ACL */ 956 { 957 char a[AFSOPAQUEMAX+1]; 958 FIDOUT(); 959 ND_TCHECK2(bp[0], 4); 960 i = EXTRACT_32BITS(bp); 961 bp += sizeof(int32_t); 962 ND_TCHECK2(bp[0], i); 963 i = min(AFSOPAQUEMAX, i); 964 strncpy(a, (const char *) bp, i); 965 a[i] = '\0'; 966 acl_print(ndo, (u_char *) a, sizeof(a), (u_char *) a + i); 967 break; 968 } 969 case 137: /* Create file */ 970 case 141: /* MakeDir */ 971 FIDOUT(); 972 STROUT(AFSNAMEMAX); 973 STOREATTROUT(); 974 break; 975 case 136: /* Remove file */ 976 case 142: /* Remove directory */ 977 FIDOUT(); 978 STROUT(AFSNAMEMAX); 979 break; 980 case 138: /* Rename file */ 981 ND_PRINT((ndo, " old")); 982 FIDOUT(); 983 STROUT(AFSNAMEMAX); 984 ND_PRINT((ndo, " new")); 985 FIDOUT(); 986 STROUT(AFSNAMEMAX); 987 break; 988 case 139: /* Symlink */ 989 FIDOUT(); 990 STROUT(AFSNAMEMAX); 991 ND_PRINT((ndo, " link to")); 992 STROUT(AFSNAMEMAX); 993 break; 994 case 140: /* Link */ 995 FIDOUT(); 996 STROUT(AFSNAMEMAX); 997 ND_PRINT((ndo, " link to")); 998 FIDOUT(); 999 break; 1000 case 148: /* Get volume info */ 1001 STROUT(AFSNAMEMAX); 1002 break; 1003 case 149: /* Get volume stats */ 1004 case 150: /* Set volume stats */ 1005 ND_PRINT((ndo, " volid")); 1006 UINTOUT(); 1007 break; 1008 case 154: /* New get volume info */ 1009 ND_PRINT((ndo, " volname")); 1010 STROUT(AFSNAMEMAX); 1011 break; 1012 case 155: /* Bulk stat */ 1013 case 65536: /* Inline bulk stat */ 1014 { 1015 unsigned long j; 1016 ND_TCHECK2(bp[0], 4); 1017 j = EXTRACT_32BITS(bp); 1018 bp += sizeof(int32_t); 1019 1020 for (i = 0; i < j; i++) { 1021 FIDOUT(); 1022 if (i != j - 1) 1023 ND_PRINT((ndo, ",")); 1024 } 1025 if (j == 0) 1026 ND_PRINT((ndo, " <none!>")); 1027 } 1028 case 65537: /* Fetch data 64 */ 1029 FIDOUT(); 1030 ND_PRINT((ndo, " offset")); 1031 UINT64OUT(); 1032 ND_PRINT((ndo, " length")); 1033 UINT64OUT(); 1034 break; 1035 case 65538: /* Store data 64 */ 1036 FIDOUT(); 1037 STOREATTROUT(); 1038 ND_PRINT((ndo, " offset")); 1039 UINT64OUT(); 1040 ND_PRINT((ndo, " length")); 1041 UINT64OUT(); 1042 ND_PRINT((ndo, " flen")); 1043 UINT64OUT(); 1044 break; 1045 case 65541: /* CallBack rx conn address */ 1046 ND_PRINT((ndo, " addr")); 1047 UINTOUT(); 1048 default: 1049 ; 1050 } 1051 1052 return; 1053 1054 trunc: 1055 ND_PRINT((ndo, " [|fs]")); 1056 } 1057 1058 /* 1059 * Handle replies to the AFS file service 1060 */ 1061 1062 static void 1063 fs_reply_print(netdissect_options *ndo, 1064 register const u_char *bp, int length, int32_t opcode) 1065 { 1066 unsigned long i; 1067 const struct rx_header *rxh; 1068 1069 if (length <= (int)sizeof(struct rx_header)) 1070 return; 1071 1072 rxh = (const struct rx_header *) bp; 1073 1074 /* 1075 * Print out the afs call we're invoking. The table used here was 1076 * gleaned from fsint/afsint.xg 1077 */ 1078 1079 ND_PRINT((ndo, " fs reply %s", tok2str(fs_req, "op#%d", opcode))); 1080 1081 bp += sizeof(struct rx_header); 1082 1083 /* 1084 * If it was a data packet, interpret the response 1085 */ 1086 1087 if (rxh->type == RX_PACKET_TYPE_DATA) { 1088 switch (opcode) { 1089 case 131: /* Fetch ACL */ 1090 { 1091 char a[AFSOPAQUEMAX+1]; 1092 ND_TCHECK2(bp[0], 4); 1093 i = EXTRACT_32BITS(bp); 1094 bp += sizeof(int32_t); 1095 ND_TCHECK2(bp[0], i); 1096 i = min(AFSOPAQUEMAX, i); 1097 strncpy(a, (const char *) bp, i); 1098 a[i] = '\0'; 1099 acl_print(ndo, (u_char *) a, sizeof(a), (u_char *) a + i); 1100 break; 1101 } 1102 case 137: /* Create file */ 1103 case 141: /* MakeDir */ 1104 ND_PRINT((ndo, " new")); 1105 FIDOUT(); 1106 break; 1107 case 151: /* Get root volume */ 1108 ND_PRINT((ndo, " root volume")); 1109 STROUT(AFSNAMEMAX); 1110 break; 1111 case 153: /* Get time */ 1112 DATEOUT(); 1113 break; 1114 default: 1115 ; 1116 } 1117 } else if (rxh->type == RX_PACKET_TYPE_ABORT) { 1118 /* 1119 * Otherwise, just print out the return code 1120 */ 1121 ND_TCHECK2(bp[0], sizeof(int32_t)); 1122 i = (int) EXTRACT_32BITS(bp); 1123 bp += sizeof(int32_t); 1124 1125 ND_PRINT((ndo, " error %s", tok2str(afs_fs_errors, "#%d", i))); 1126 } else { 1127 ND_PRINT((ndo, " strange fs reply of type %d", rxh->type)); 1128 } 1129 1130 return; 1131 1132 trunc: 1133 ND_PRINT((ndo, " [|fs]")); 1134 } 1135 1136 /* 1137 * Print out an AFS ACL string. An AFS ACL is a string that has the 1138 * following format: 1139 * 1140 * <positive> <negative> 1141 * <uid1> <aclbits1> 1142 * .... 1143 * 1144 * "positive" and "negative" are integers which contain the number of 1145 * positive and negative ACL's in the string. The uid/aclbits pair are 1146 * ASCII strings containing the UID/PTS record and and a ascii number 1147 * representing a logical OR of all the ACL permission bits 1148 */ 1149 1150 static void 1151 acl_print(netdissect_options *ndo, 1152 u_char *s, int maxsize, u_char *end) 1153 { 1154 int pos, neg, acl; 1155 int n, i; 1156 char *user; 1157 char fmt[1024]; 1158 1159 if ((user = (char *)malloc(maxsize)) == NULL) 1160 return; 1161 1162 if (sscanf((char *) s, "%d %d\n%n", &pos, &neg, &n) != 2) 1163 goto finish; 1164 1165 s += n; 1166 1167 if (s > end) 1168 goto finish; 1169 1170 /* 1171 * This wacky order preserves the order used by the "fs" command 1172 */ 1173 1174 #define ACLOUT(acl) \ 1175 ND_PRINT((ndo, "%s%s%s%s%s%s%s", \ 1176 acl & PRSFS_READ ? "r" : "", \ 1177 acl & PRSFS_LOOKUP ? "l" : "", \ 1178 acl & PRSFS_INSERT ? "i" : "", \ 1179 acl & PRSFS_DELETE ? "d" : "", \ 1180 acl & PRSFS_WRITE ? "w" : "", \ 1181 acl & PRSFS_LOCK ? "k" : "", \ 1182 acl & PRSFS_ADMINISTER ? "a" : "")); 1183 1184 for (i = 0; i < pos; i++) { 1185 snprintf(fmt, sizeof(fmt), "%%%ds %%d\n%%n", maxsize - 1); 1186 if (sscanf((char *) s, fmt, user, &acl, &n) != 2) 1187 goto finish; 1188 s += n; 1189 ND_PRINT((ndo, " +{")); 1190 fn_print(ndo, (u_char *)user, NULL); 1191 ND_PRINT((ndo, " ")); 1192 ACLOUT(acl); 1193 ND_PRINT((ndo, "}")); 1194 if (s > end) 1195 goto finish; 1196 } 1197 1198 for (i = 0; i < neg; i++) { 1199 snprintf(fmt, sizeof(fmt), "%%%ds %%d\n%%n", maxsize - 1); 1200 if (sscanf((char *) s, fmt, user, &acl, &n) != 2) 1201 goto finish; 1202 s += n; 1203 ND_PRINT((ndo, " -{")); 1204 fn_print(ndo, (u_char *)user, NULL); 1205 ND_PRINT((ndo, " ")); 1206 ACLOUT(acl); 1207 ND_PRINT((ndo, "}")); 1208 if (s > end) 1209 goto finish; 1210 } 1211 1212 finish: 1213 free(user); 1214 return; 1215 } 1216 1217 #undef ACLOUT 1218 1219 /* 1220 * Handle calls to the AFS callback service 1221 */ 1222 1223 static void 1224 cb_print(netdissect_options *ndo, 1225 register const u_char *bp, int length) 1226 { 1227 int cb_op; 1228 unsigned long i; 1229 1230 if (length <= (int)sizeof(struct rx_header)) 1231 return; 1232 1233 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1234 goto trunc; 1235 } 1236 1237 /* 1238 * Print out the afs call we're invoking. The table used here was 1239 * gleaned from fsint/afscbint.xg 1240 */ 1241 1242 cb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1243 1244 ND_PRINT((ndo, " cb call %s", tok2str(cb_req, "op#%d", cb_op))); 1245 1246 bp += sizeof(struct rx_header) + 4; 1247 1248 /* 1249 * Print out the afs call we're invoking. The table used here was 1250 * gleaned from fsint/afscbint.xg 1251 */ 1252 1253 switch (cb_op) { 1254 case 204: /* Callback */ 1255 { 1256 unsigned long j, t; 1257 ND_TCHECK2(bp[0], 4); 1258 j = EXTRACT_32BITS(bp); 1259 bp += sizeof(int32_t); 1260 1261 for (i = 0; i < j; i++) { 1262 FIDOUT(); 1263 if (i != j - 1) 1264 ND_PRINT((ndo, ",")); 1265 } 1266 1267 if (j == 0) 1268 ND_PRINT((ndo, " <none!>")); 1269 1270 ND_TCHECK_32BITS(bp); 1271 j = EXTRACT_32BITS(bp); 1272 bp += sizeof(int32_t); 1273 1274 if (j != 0) 1275 ND_PRINT((ndo, ";")); 1276 1277 for (i = 0; i < j; i++) { 1278 ND_PRINT((ndo, " ver")); 1279 INTOUT(); 1280 ND_PRINT((ndo, " expires")); 1281 DATEOUT(); 1282 ND_TCHECK2(bp[0], 4); 1283 t = EXTRACT_32BITS(bp); 1284 bp += sizeof(int32_t); 1285 tok2str(cb_types, "type %d", t); 1286 } 1287 } 1288 case 214: { 1289 ND_PRINT((ndo, " afsuuid")); 1290 AFSUUIDOUT(); 1291 break; 1292 } 1293 default: 1294 ; 1295 } 1296 1297 return; 1298 1299 trunc: 1300 ND_PRINT((ndo, " [|cb]")); 1301 } 1302 1303 /* 1304 * Handle replies to the AFS Callback Service 1305 */ 1306 1307 static void 1308 cb_reply_print(netdissect_options *ndo, 1309 register const u_char *bp, int length, int32_t opcode) 1310 { 1311 const struct rx_header *rxh; 1312 1313 if (length <= (int)sizeof(struct rx_header)) 1314 return; 1315 1316 rxh = (const struct rx_header *) bp; 1317 1318 /* 1319 * Print out the afs call we're invoking. The table used here was 1320 * gleaned from fsint/afscbint.xg 1321 */ 1322 1323 ND_PRINT((ndo, " cb reply %s", tok2str(cb_req, "op#%d", opcode))); 1324 1325 bp += sizeof(struct rx_header); 1326 1327 /* 1328 * If it was a data packet, interpret the response. 1329 */ 1330 1331 if (rxh->type == RX_PACKET_TYPE_DATA) 1332 switch (opcode) { 1333 case 213: /* InitCallBackState3 */ 1334 AFSUUIDOUT(); 1335 break; 1336 default: 1337 ; 1338 } 1339 else { 1340 /* 1341 * Otherwise, just print out the return code 1342 */ 1343 ND_PRINT((ndo, " errcode")); 1344 INTOUT(); 1345 } 1346 1347 return; 1348 1349 trunc: 1350 ND_PRINT((ndo, " [|cb]")); 1351 } 1352 1353 /* 1354 * Handle calls to the AFS protection database server 1355 */ 1356 1357 static void 1358 prot_print(netdissect_options *ndo, 1359 register const u_char *bp, int length) 1360 { 1361 unsigned long i; 1362 int pt_op; 1363 1364 if (length <= (int)sizeof(struct rx_header)) 1365 return; 1366 1367 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1368 goto trunc; 1369 } 1370 1371 /* 1372 * Print out the afs call we're invoking. The table used here was 1373 * gleaned from ptserver/ptint.xg 1374 */ 1375 1376 pt_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1377 1378 ND_PRINT((ndo, " pt")); 1379 1380 if (is_ubik(pt_op)) { 1381 ubik_print(ndo, bp); 1382 return; 1383 } 1384 1385 ND_PRINT((ndo, " call %s", tok2str(pt_req, "op#%d", pt_op))); 1386 1387 /* 1388 * Decode some of the arguments to the PT calls 1389 */ 1390 1391 bp += sizeof(struct rx_header) + 4; 1392 1393 switch (pt_op) { 1394 case 500: /* I New User */ 1395 STROUT(PRNAMEMAX); 1396 ND_PRINT((ndo, " id")); 1397 INTOUT(); 1398 ND_PRINT((ndo, " oldid")); 1399 INTOUT(); 1400 break; 1401 case 501: /* Where is it */ 1402 case 506: /* Delete */ 1403 case 508: /* Get CPS */ 1404 case 512: /* List entry */ 1405 case 514: /* List elements */ 1406 case 517: /* List owned */ 1407 case 518: /* Get CPS2 */ 1408 case 519: /* Get host CPS */ 1409 case 530: /* List super groups */ 1410 ND_PRINT((ndo, " id")); 1411 INTOUT(); 1412 break; 1413 case 502: /* Dump entry */ 1414 ND_PRINT((ndo, " pos")); 1415 INTOUT(); 1416 break; 1417 case 503: /* Add to group */ 1418 case 507: /* Remove from group */ 1419 case 515: /* Is a member of? */ 1420 ND_PRINT((ndo, " uid")); 1421 INTOUT(); 1422 ND_PRINT((ndo, " gid")); 1423 INTOUT(); 1424 break; 1425 case 504: /* Name to ID */ 1426 { 1427 unsigned long j; 1428 ND_TCHECK2(bp[0], 4); 1429 j = EXTRACT_32BITS(bp); 1430 bp += sizeof(int32_t); 1431 1432 /* 1433 * Who designed this chicken-shit protocol? 1434 * 1435 * Each character is stored as a 32-bit 1436 * integer! 1437 */ 1438 1439 for (i = 0; i < j; i++) { 1440 VECOUT(PRNAMEMAX); 1441 } 1442 if (j == 0) 1443 ND_PRINT((ndo, " <none!>")); 1444 } 1445 break; 1446 case 505: /* Id to name */ 1447 { 1448 unsigned long j; 1449 ND_PRINT((ndo, " ids:")); 1450 ND_TCHECK2(bp[0], 4); 1451 i = EXTRACT_32BITS(bp); 1452 bp += sizeof(int32_t); 1453 for (j = 0; j < i; j++) 1454 INTOUT(); 1455 if (j == 0) 1456 ND_PRINT((ndo, " <none!>")); 1457 } 1458 break; 1459 case 509: /* New entry */ 1460 STROUT(PRNAMEMAX); 1461 ND_PRINT((ndo, " flag")); 1462 INTOUT(); 1463 ND_PRINT((ndo, " oid")); 1464 INTOUT(); 1465 break; 1466 case 511: /* Set max */ 1467 ND_PRINT((ndo, " id")); 1468 INTOUT(); 1469 ND_PRINT((ndo, " gflag")); 1470 INTOUT(); 1471 break; 1472 case 513: /* Change entry */ 1473 ND_PRINT((ndo, " id")); 1474 INTOUT(); 1475 STROUT(PRNAMEMAX); 1476 ND_PRINT((ndo, " oldid")); 1477 INTOUT(); 1478 ND_PRINT((ndo, " newid")); 1479 INTOUT(); 1480 break; 1481 case 520: /* Update entry */ 1482 ND_PRINT((ndo, " id")); 1483 INTOUT(); 1484 STROUT(PRNAMEMAX); 1485 break; 1486 default: 1487 ; 1488 } 1489 1490 1491 return; 1492 1493 trunc: 1494 ND_PRINT((ndo, " [|pt]")); 1495 } 1496 1497 /* 1498 * Handle replies to the AFS protection service 1499 */ 1500 1501 static void 1502 prot_reply_print(netdissect_options *ndo, 1503 register const u_char *bp, int length, int32_t opcode) 1504 { 1505 const struct rx_header *rxh; 1506 unsigned long i; 1507 1508 if (length < (int)sizeof(struct rx_header)) 1509 return; 1510 1511 rxh = (const struct rx_header *) bp; 1512 1513 /* 1514 * Print out the afs call we're invoking. The table used here was 1515 * gleaned from ptserver/ptint.xg. Check to see if it's a 1516 * Ubik call, however. 1517 */ 1518 1519 ND_PRINT((ndo, " pt")); 1520 1521 if (is_ubik(opcode)) { 1522 ubik_reply_print(ndo, bp, length, opcode); 1523 return; 1524 } 1525 1526 ND_PRINT((ndo, " reply %s", tok2str(pt_req, "op#%d", opcode))); 1527 1528 bp += sizeof(struct rx_header); 1529 1530 /* 1531 * If it was a data packet, interpret the response 1532 */ 1533 1534 if (rxh->type == RX_PACKET_TYPE_DATA) 1535 switch (opcode) { 1536 case 504: /* Name to ID */ 1537 { 1538 unsigned long j; 1539 ND_PRINT((ndo, " ids:")); 1540 ND_TCHECK2(bp[0], 4); 1541 i = EXTRACT_32BITS(bp); 1542 bp += sizeof(int32_t); 1543 for (j = 0; j < i; j++) 1544 INTOUT(); 1545 if (j == 0) 1546 ND_PRINT((ndo, " <none!>")); 1547 } 1548 break; 1549 case 505: /* ID to name */ 1550 { 1551 unsigned long j; 1552 ND_TCHECK2(bp[0], 4); 1553 j = EXTRACT_32BITS(bp); 1554 bp += sizeof(int32_t); 1555 1556 /* 1557 * Who designed this chicken-shit protocol? 1558 * 1559 * Each character is stored as a 32-bit 1560 * integer! 1561 */ 1562 1563 for (i = 0; i < j; i++) { 1564 VECOUT(PRNAMEMAX); 1565 } 1566 if (j == 0) 1567 ND_PRINT((ndo, " <none!>")); 1568 } 1569 break; 1570 case 508: /* Get CPS */ 1571 case 514: /* List elements */ 1572 case 517: /* List owned */ 1573 case 518: /* Get CPS2 */ 1574 case 519: /* Get host CPS */ 1575 { 1576 unsigned long j; 1577 ND_TCHECK2(bp[0], 4); 1578 j = EXTRACT_32BITS(bp); 1579 bp += sizeof(int32_t); 1580 for (i = 0; i < j; i++) { 1581 INTOUT(); 1582 } 1583 if (j == 0) 1584 ND_PRINT((ndo, " <none!>")); 1585 } 1586 break; 1587 case 510: /* List max */ 1588 ND_PRINT((ndo, " maxuid")); 1589 INTOUT(); 1590 ND_PRINT((ndo, " maxgid")); 1591 INTOUT(); 1592 break; 1593 default: 1594 ; 1595 } 1596 else { 1597 /* 1598 * Otherwise, just print out the return code 1599 */ 1600 ND_PRINT((ndo, " errcode")); 1601 INTOUT(); 1602 } 1603 1604 return; 1605 1606 trunc: 1607 ND_PRINT((ndo, " [|pt]")); 1608 } 1609 1610 /* 1611 * Handle calls to the AFS volume location database service 1612 */ 1613 1614 static void 1615 vldb_print(netdissect_options *ndo, 1616 register const u_char *bp, int length) 1617 { 1618 int vldb_op; 1619 unsigned long i; 1620 1621 if (length <= (int)sizeof(struct rx_header)) 1622 return; 1623 1624 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1625 goto trunc; 1626 } 1627 1628 /* 1629 * Print out the afs call we're invoking. The table used here was 1630 * gleaned from vlserver/vldbint.xg 1631 */ 1632 1633 vldb_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1634 1635 ND_PRINT((ndo, " vldb")); 1636 1637 if (is_ubik(vldb_op)) { 1638 ubik_print(ndo, bp); 1639 return; 1640 } 1641 ND_PRINT((ndo, " call %s", tok2str(vldb_req, "op#%d", vldb_op))); 1642 1643 /* 1644 * Decode some of the arguments to the VLDB calls 1645 */ 1646 1647 bp += sizeof(struct rx_header) + 4; 1648 1649 switch (vldb_op) { 1650 case 501: /* Create new volume */ 1651 case 517: /* Create entry N */ 1652 VECOUT(VLNAMEMAX); 1653 break; 1654 case 502: /* Delete entry */ 1655 case 503: /* Get entry by ID */ 1656 case 507: /* Update entry */ 1657 case 508: /* Set lock */ 1658 case 509: /* Release lock */ 1659 case 518: /* Get entry by ID N */ 1660 ND_PRINT((ndo, " volid")); 1661 INTOUT(); 1662 ND_TCHECK2(bp[0], sizeof(int32_t)); 1663 i = EXTRACT_32BITS(bp); 1664 bp += sizeof(int32_t); 1665 if (i <= 2) 1666 ND_PRINT((ndo, " type %s", voltype[i])); 1667 break; 1668 case 504: /* Get entry by name */ 1669 case 519: /* Get entry by name N */ 1670 case 524: /* Update entry by name */ 1671 case 527: /* Get entry by name U */ 1672 STROUT(VLNAMEMAX); 1673 break; 1674 case 505: /* Get new vol id */ 1675 ND_PRINT((ndo, " bump")); 1676 INTOUT(); 1677 break; 1678 case 506: /* Replace entry */ 1679 case 520: /* Replace entry N */ 1680 ND_PRINT((ndo, " volid")); 1681 INTOUT(); 1682 ND_TCHECK2(bp[0], sizeof(int32_t)); 1683 i = EXTRACT_32BITS(bp); 1684 bp += sizeof(int32_t); 1685 if (i <= 2) 1686 ND_PRINT((ndo, " type %s", voltype[i])); 1687 VECOUT(VLNAMEMAX); 1688 break; 1689 case 510: /* List entry */ 1690 case 521: /* List entry N */ 1691 ND_PRINT((ndo, " index")); 1692 INTOUT(); 1693 break; 1694 default: 1695 ; 1696 } 1697 1698 return; 1699 1700 trunc: 1701 ND_PRINT((ndo, " [|vldb]")); 1702 } 1703 1704 /* 1705 * Handle replies to the AFS volume location database service 1706 */ 1707 1708 static void 1709 vldb_reply_print(netdissect_options *ndo, 1710 register const u_char *bp, int length, int32_t opcode) 1711 { 1712 const struct rx_header *rxh; 1713 unsigned long i; 1714 1715 if (length < (int)sizeof(struct rx_header)) 1716 return; 1717 1718 rxh = (const struct rx_header *) bp; 1719 1720 /* 1721 * Print out the afs call we're invoking. The table used here was 1722 * gleaned from vlserver/vldbint.xg. Check to see if it's a 1723 * Ubik call, however. 1724 */ 1725 1726 ND_PRINT((ndo, " vldb")); 1727 1728 if (is_ubik(opcode)) { 1729 ubik_reply_print(ndo, bp, length, opcode); 1730 return; 1731 } 1732 1733 ND_PRINT((ndo, " reply %s", tok2str(vldb_req, "op#%d", opcode))); 1734 1735 bp += sizeof(struct rx_header); 1736 1737 /* 1738 * If it was a data packet, interpret the response 1739 */ 1740 1741 if (rxh->type == RX_PACKET_TYPE_DATA) 1742 switch (opcode) { 1743 case 510: /* List entry */ 1744 ND_PRINT((ndo, " count")); 1745 INTOUT(); 1746 ND_PRINT((ndo, " nextindex")); 1747 INTOUT(); 1748 case 503: /* Get entry by id */ 1749 case 504: /* Get entry by name */ 1750 { unsigned long nservers, j; 1751 VECOUT(VLNAMEMAX); 1752 ND_TCHECK2(bp[0], sizeof(int32_t)); 1753 bp += sizeof(int32_t); 1754 ND_PRINT((ndo, " numservers")); 1755 ND_TCHECK2(bp[0], sizeof(int32_t)); 1756 nservers = EXTRACT_32BITS(bp); 1757 bp += sizeof(int32_t); 1758 ND_PRINT((ndo, " %lu", nservers)); 1759 ND_PRINT((ndo, " servers")); 1760 for (i = 0; i < 8; i++) { 1761 ND_TCHECK2(bp[0], sizeof(int32_t)); 1762 if (i < nservers) 1763 ND_PRINT((ndo, " %s", 1764 intoa(((const struct in_addr *) bp)->s_addr))); 1765 bp += sizeof(int32_t); 1766 } 1767 ND_PRINT((ndo, " partitions")); 1768 for (i = 0; i < 8; i++) { 1769 ND_TCHECK2(bp[0], sizeof(int32_t)); 1770 j = EXTRACT_32BITS(bp); 1771 if (i < nservers && j <= 26) 1772 ND_PRINT((ndo, " %c", 'a' + (int)j)); 1773 else if (i < nservers) 1774 ND_PRINT((ndo, " %lu", j)); 1775 bp += sizeof(int32_t); 1776 } 1777 ND_TCHECK2(bp[0], 8 * sizeof(int32_t)); 1778 bp += 8 * sizeof(int32_t); 1779 ND_PRINT((ndo, " rwvol")); 1780 UINTOUT(); 1781 ND_PRINT((ndo, " rovol")); 1782 UINTOUT(); 1783 ND_PRINT((ndo, " backup")); 1784 UINTOUT(); 1785 } 1786 break; 1787 case 505: /* Get new volume ID */ 1788 ND_PRINT((ndo, " newvol")); 1789 UINTOUT(); 1790 break; 1791 case 521: /* List entry */ 1792 case 529: /* List entry U */ 1793 ND_PRINT((ndo, " count")); 1794 INTOUT(); 1795 ND_PRINT((ndo, " nextindex")); 1796 INTOUT(); 1797 case 518: /* Get entry by ID N */ 1798 case 519: /* Get entry by name N */ 1799 { unsigned long nservers, j; 1800 VECOUT(VLNAMEMAX); 1801 ND_PRINT((ndo, " numservers")); 1802 ND_TCHECK2(bp[0], sizeof(int32_t)); 1803 nservers = EXTRACT_32BITS(bp); 1804 bp += sizeof(int32_t); 1805 ND_PRINT((ndo, " %lu", nservers)); 1806 ND_PRINT((ndo, " servers")); 1807 for (i = 0; i < 13; i++) { 1808 ND_TCHECK2(bp[0], sizeof(int32_t)); 1809 if (i < nservers) 1810 ND_PRINT((ndo, " %s", 1811 intoa(((const struct in_addr *) bp)->s_addr))); 1812 bp += sizeof(int32_t); 1813 } 1814 ND_PRINT((ndo, " partitions")); 1815 for (i = 0; i < 13; i++) { 1816 ND_TCHECK2(bp[0], sizeof(int32_t)); 1817 j = EXTRACT_32BITS(bp); 1818 if (i < nservers && j <= 26) 1819 ND_PRINT((ndo, " %c", 'a' + (int)j)); 1820 else if (i < nservers) 1821 ND_PRINT((ndo, " %lu", j)); 1822 bp += sizeof(int32_t); 1823 } 1824 ND_TCHECK2(bp[0], 13 * sizeof(int32_t)); 1825 bp += 13 * sizeof(int32_t); 1826 ND_PRINT((ndo, " rwvol")); 1827 UINTOUT(); 1828 ND_PRINT((ndo, " rovol")); 1829 UINTOUT(); 1830 ND_PRINT((ndo, " backup")); 1831 UINTOUT(); 1832 } 1833 break; 1834 case 526: /* Get entry by ID U */ 1835 case 527: /* Get entry by name U */ 1836 { unsigned long nservers, j; 1837 VECOUT(VLNAMEMAX); 1838 ND_PRINT((ndo, " numservers")); 1839 ND_TCHECK2(bp[0], sizeof(int32_t)); 1840 nservers = EXTRACT_32BITS(bp); 1841 bp += sizeof(int32_t); 1842 ND_PRINT((ndo, " %lu", nservers)); 1843 ND_PRINT((ndo, " servers")); 1844 for (i = 0; i < 13; i++) { 1845 if (i < nservers) { 1846 ND_PRINT((ndo, " afsuuid")); 1847 AFSUUIDOUT(); 1848 } else { 1849 ND_TCHECK2(bp[0], 44); 1850 bp += 44; 1851 } 1852 } 1853 ND_TCHECK2(bp[0], 4 * 13); 1854 bp += 4 * 13; 1855 ND_PRINT((ndo, " partitions")); 1856 for (i = 0; i < 13; i++) { 1857 ND_TCHECK2(bp[0], sizeof(int32_t)); 1858 j = EXTRACT_32BITS(bp); 1859 if (i < nservers && j <= 26) 1860 ND_PRINT((ndo, " %c", 'a' + (int)j)); 1861 else if (i < nservers) 1862 ND_PRINT((ndo, " %lu", j)); 1863 bp += sizeof(int32_t); 1864 } 1865 ND_TCHECK2(bp[0], 13 * sizeof(int32_t)); 1866 bp += 13 * sizeof(int32_t); 1867 ND_PRINT((ndo, " rwvol")); 1868 UINTOUT(); 1869 ND_PRINT((ndo, " rovol")); 1870 UINTOUT(); 1871 ND_PRINT((ndo, " backup")); 1872 UINTOUT(); 1873 } 1874 default: 1875 ; 1876 } 1877 1878 else { 1879 /* 1880 * Otherwise, just print out the return code 1881 */ 1882 ND_PRINT((ndo, " errcode")); 1883 INTOUT(); 1884 } 1885 1886 return; 1887 1888 trunc: 1889 ND_PRINT((ndo, " [|vldb]")); 1890 } 1891 1892 /* 1893 * Handle calls to the AFS Kerberos Authentication service 1894 */ 1895 1896 static void 1897 kauth_print(netdissect_options *ndo, 1898 register const u_char *bp, int length) 1899 { 1900 int kauth_op; 1901 1902 if (length <= (int)sizeof(struct rx_header)) 1903 return; 1904 1905 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 1906 goto trunc; 1907 } 1908 1909 /* 1910 * Print out the afs call we're invoking. The table used here was 1911 * gleaned from kauth/kauth.rg 1912 */ 1913 1914 kauth_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 1915 1916 ND_PRINT((ndo, " kauth")); 1917 1918 if (is_ubik(kauth_op)) { 1919 ubik_print(ndo, bp); 1920 return; 1921 } 1922 1923 1924 ND_PRINT((ndo, " call %s", tok2str(kauth_req, "op#%d", kauth_op))); 1925 1926 /* 1927 * Decode some of the arguments to the KA calls 1928 */ 1929 1930 bp += sizeof(struct rx_header) + 4; 1931 1932 switch (kauth_op) { 1933 case 1: /* Authenticate old */ 1934 case 21: /* Authenticate */ 1935 case 22: /* Authenticate-V2 */ 1936 case 2: /* Change PW */ 1937 case 5: /* Set fields */ 1938 case 6: /* Create user */ 1939 case 7: /* Delete user */ 1940 case 8: /* Get entry */ 1941 case 14: /* Unlock */ 1942 case 15: /* Lock status */ 1943 ND_PRINT((ndo, " principal")); 1944 STROUT(KANAMEMAX); 1945 STROUT(KANAMEMAX); 1946 break; 1947 case 3: /* GetTicket-old */ 1948 case 23: /* GetTicket */ 1949 { 1950 int i; 1951 ND_PRINT((ndo, " kvno")); 1952 INTOUT(); 1953 ND_PRINT((ndo, " domain")); 1954 STROUT(KANAMEMAX); 1955 ND_TCHECK2(bp[0], sizeof(int32_t)); 1956 i = (int) EXTRACT_32BITS(bp); 1957 bp += sizeof(int32_t); 1958 ND_TCHECK2(bp[0], i); 1959 bp += i; 1960 ND_PRINT((ndo, " principal")); 1961 STROUT(KANAMEMAX); 1962 STROUT(KANAMEMAX); 1963 break; 1964 } 1965 case 4: /* Set Password */ 1966 ND_PRINT((ndo, " principal")); 1967 STROUT(KANAMEMAX); 1968 STROUT(KANAMEMAX); 1969 ND_PRINT((ndo, " kvno")); 1970 INTOUT(); 1971 break; 1972 case 12: /* Get password */ 1973 ND_PRINT((ndo, " name")); 1974 STROUT(KANAMEMAX); 1975 break; 1976 default: 1977 ; 1978 } 1979 1980 return; 1981 1982 trunc: 1983 ND_PRINT((ndo, " [|kauth]")); 1984 } 1985 1986 /* 1987 * Handle replies to the AFS Kerberos Authentication Service 1988 */ 1989 1990 static void 1991 kauth_reply_print(netdissect_options *ndo, 1992 register const u_char *bp, int length, int32_t opcode) 1993 { 1994 const struct rx_header *rxh; 1995 1996 if (length <= (int)sizeof(struct rx_header)) 1997 return; 1998 1999 rxh = (const struct rx_header *) bp; 2000 2001 /* 2002 * Print out the afs call we're invoking. The table used here was 2003 * gleaned from kauth/kauth.rg 2004 */ 2005 2006 ND_PRINT((ndo, " kauth")); 2007 2008 if (is_ubik(opcode)) { 2009 ubik_reply_print(ndo, bp, length, opcode); 2010 return; 2011 } 2012 2013 ND_PRINT((ndo, " reply %s", tok2str(kauth_req, "op#%d", opcode))); 2014 2015 bp += sizeof(struct rx_header); 2016 2017 /* 2018 * If it was a data packet, interpret the response. 2019 */ 2020 2021 if (rxh->type == RX_PACKET_TYPE_DATA) 2022 /* Well, no, not really. Leave this for later */ 2023 ; 2024 else { 2025 /* 2026 * Otherwise, just print out the return code 2027 */ 2028 ND_PRINT((ndo, " errcode")); 2029 INTOUT(); 2030 } 2031 2032 return; 2033 2034 trunc: 2035 ND_PRINT((ndo, " [|kauth]")); 2036 } 2037 2038 /* 2039 * Handle calls to the AFS Volume location service 2040 */ 2041 2042 static void 2043 vol_print(netdissect_options *ndo, 2044 register const u_char *bp, int length) 2045 { 2046 int vol_op; 2047 2048 if (length <= (int)sizeof(struct rx_header)) 2049 return; 2050 2051 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 2052 goto trunc; 2053 } 2054 2055 /* 2056 * Print out the afs call we're invoking. The table used here was 2057 * gleaned from volser/volint.xg 2058 */ 2059 2060 vol_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 2061 2062 ND_PRINT((ndo, " vol call %s", tok2str(vol_req, "op#%d", vol_op))); 2063 2064 bp += sizeof(struct rx_header) + 4; 2065 2066 switch (vol_op) { 2067 case 100: /* Create volume */ 2068 ND_PRINT((ndo, " partition")); 2069 UINTOUT(); 2070 ND_PRINT((ndo, " name")); 2071 STROUT(AFSNAMEMAX); 2072 ND_PRINT((ndo, " type")); 2073 UINTOUT(); 2074 ND_PRINT((ndo, " parent")); 2075 UINTOUT(); 2076 break; 2077 case 101: /* Delete volume */ 2078 case 107: /* Get flags */ 2079 ND_PRINT((ndo, " trans")); 2080 UINTOUT(); 2081 break; 2082 case 102: /* Restore */ 2083 ND_PRINT((ndo, " totrans")); 2084 UINTOUT(); 2085 ND_PRINT((ndo, " flags")); 2086 UINTOUT(); 2087 break; 2088 case 103: /* Forward */ 2089 ND_PRINT((ndo, " fromtrans")); 2090 UINTOUT(); 2091 ND_PRINT((ndo, " fromdate")); 2092 DATEOUT(); 2093 DESTSERVEROUT(); 2094 ND_PRINT((ndo, " desttrans")); 2095 INTOUT(); 2096 break; 2097 case 104: /* End trans */ 2098 ND_PRINT((ndo, " trans")); 2099 UINTOUT(); 2100 break; 2101 case 105: /* Clone */ 2102 ND_PRINT((ndo, " trans")); 2103 UINTOUT(); 2104 ND_PRINT((ndo, " purgevol")); 2105 UINTOUT(); 2106 ND_PRINT((ndo, " newtype")); 2107 UINTOUT(); 2108 ND_PRINT((ndo, " newname")); 2109 STROUT(AFSNAMEMAX); 2110 break; 2111 case 106: /* Set flags */ 2112 ND_PRINT((ndo, " trans")); 2113 UINTOUT(); 2114 ND_PRINT((ndo, " flags")); 2115 UINTOUT(); 2116 break; 2117 case 108: /* Trans create */ 2118 ND_PRINT((ndo, " vol")); 2119 UINTOUT(); 2120 ND_PRINT((ndo, " partition")); 2121 UINTOUT(); 2122 ND_PRINT((ndo, " flags")); 2123 UINTOUT(); 2124 break; 2125 case 109: /* Dump */ 2126 case 655537: /* Get size */ 2127 ND_PRINT((ndo, " fromtrans")); 2128 UINTOUT(); 2129 ND_PRINT((ndo, " fromdate")); 2130 DATEOUT(); 2131 break; 2132 case 110: /* Get n-th volume */ 2133 ND_PRINT((ndo, " index")); 2134 UINTOUT(); 2135 break; 2136 case 111: /* Set forwarding */ 2137 ND_PRINT((ndo, " tid")); 2138 UINTOUT(); 2139 ND_PRINT((ndo, " newsite")); 2140 UINTOUT(); 2141 break; 2142 case 112: /* Get name */ 2143 case 113: /* Get status */ 2144 ND_PRINT((ndo, " tid")); 2145 break; 2146 case 114: /* Signal restore */ 2147 ND_PRINT((ndo, " name")); 2148 STROUT(AFSNAMEMAX); 2149 ND_PRINT((ndo, " type")); 2150 UINTOUT(); 2151 ND_PRINT((ndo, " pid")); 2152 UINTOUT(); 2153 ND_PRINT((ndo, " cloneid")); 2154 UINTOUT(); 2155 break; 2156 case 116: /* List volumes */ 2157 ND_PRINT((ndo, " partition")); 2158 UINTOUT(); 2159 ND_PRINT((ndo, " flags")); 2160 UINTOUT(); 2161 break; 2162 case 117: /* Set id types */ 2163 ND_PRINT((ndo, " tid")); 2164 UINTOUT(); 2165 ND_PRINT((ndo, " name")); 2166 STROUT(AFSNAMEMAX); 2167 ND_PRINT((ndo, " type")); 2168 UINTOUT(); 2169 ND_PRINT((ndo, " pid")); 2170 UINTOUT(); 2171 ND_PRINT((ndo, " clone")); 2172 UINTOUT(); 2173 ND_PRINT((ndo, " backup")); 2174 UINTOUT(); 2175 break; 2176 case 119: /* Partition info */ 2177 ND_PRINT((ndo, " name")); 2178 STROUT(AFSNAMEMAX); 2179 break; 2180 case 120: /* Reclone */ 2181 ND_PRINT((ndo, " tid")); 2182 UINTOUT(); 2183 break; 2184 case 121: /* List one volume */ 2185 case 122: /* Nuke volume */ 2186 case 124: /* Extended List volumes */ 2187 case 125: /* Extended List one volume */ 2188 case 65536: /* Convert RO to RW volume */ 2189 ND_PRINT((ndo, " partid")); 2190 UINTOUT(); 2191 ND_PRINT((ndo, " volid")); 2192 UINTOUT(); 2193 break; 2194 case 123: /* Set date */ 2195 ND_PRINT((ndo, " tid")); 2196 UINTOUT(); 2197 ND_PRINT((ndo, " date")); 2198 DATEOUT(); 2199 break; 2200 case 126: /* Set info */ 2201 ND_PRINT((ndo, " tid")); 2202 UINTOUT(); 2203 break; 2204 case 128: /* Forward multiple */ 2205 ND_PRINT((ndo, " fromtrans")); 2206 UINTOUT(); 2207 ND_PRINT((ndo, " fromdate")); 2208 DATEOUT(); 2209 { 2210 unsigned long i, j; 2211 ND_TCHECK2(bp[0], 4); 2212 j = EXTRACT_32BITS(bp); 2213 bp += sizeof(int32_t); 2214 for (i = 0; i < j; i++) { 2215 DESTSERVEROUT(); 2216 if (i != j - 1) 2217 ND_PRINT((ndo, ",")); 2218 } 2219 if (j == 0) 2220 ND_PRINT((ndo, " <none!>")); 2221 } 2222 break; 2223 case 65538: /* Dump version 2 */ 2224 ND_PRINT((ndo, " fromtrans")); 2225 UINTOUT(); 2226 ND_PRINT((ndo, " fromdate")); 2227 DATEOUT(); 2228 ND_PRINT((ndo, " flags")); 2229 UINTOUT(); 2230 break; 2231 default: 2232 ; 2233 } 2234 return; 2235 2236 trunc: 2237 ND_PRINT((ndo, " [|vol]")); 2238 } 2239 2240 /* 2241 * Handle replies to the AFS Volume Service 2242 */ 2243 2244 static void 2245 vol_reply_print(netdissect_options *ndo, 2246 register const u_char *bp, int length, int32_t opcode) 2247 { 2248 const struct rx_header *rxh; 2249 2250 if (length <= (int)sizeof(struct rx_header)) 2251 return; 2252 2253 rxh = (const struct rx_header *) bp; 2254 2255 /* 2256 * Print out the afs call we're invoking. The table used here was 2257 * gleaned from volser/volint.xg 2258 */ 2259 2260 ND_PRINT((ndo, " vol reply %s", tok2str(vol_req, "op#%d", opcode))); 2261 2262 bp += sizeof(struct rx_header); 2263 2264 /* 2265 * If it was a data packet, interpret the response. 2266 */ 2267 2268 if (rxh->type == RX_PACKET_TYPE_DATA) { 2269 switch (opcode) { 2270 case 100: /* Create volume */ 2271 ND_PRINT((ndo, " volid")); 2272 UINTOUT(); 2273 ND_PRINT((ndo, " trans")); 2274 UINTOUT(); 2275 break; 2276 case 104: /* End transaction */ 2277 UINTOUT(); 2278 break; 2279 case 105: /* Clone */ 2280 ND_PRINT((ndo, " newvol")); 2281 UINTOUT(); 2282 break; 2283 case 107: /* Get flags */ 2284 UINTOUT(); 2285 break; 2286 case 108: /* Transaction create */ 2287 ND_PRINT((ndo, " trans")); 2288 UINTOUT(); 2289 break; 2290 case 110: /* Get n-th volume */ 2291 ND_PRINT((ndo, " volume")); 2292 UINTOUT(); 2293 ND_PRINT((ndo, " partition")); 2294 UINTOUT(); 2295 break; 2296 case 112: /* Get name */ 2297 STROUT(AFSNAMEMAX); 2298 break; 2299 case 113: /* Get status */ 2300 ND_PRINT((ndo, " volid")); 2301 UINTOUT(); 2302 ND_PRINT((ndo, " nextuniq")); 2303 UINTOUT(); 2304 ND_PRINT((ndo, " type")); 2305 UINTOUT(); 2306 ND_PRINT((ndo, " parentid")); 2307 UINTOUT(); 2308 ND_PRINT((ndo, " clone")); 2309 UINTOUT(); 2310 ND_PRINT((ndo, " backup")); 2311 UINTOUT(); 2312 ND_PRINT((ndo, " restore")); 2313 UINTOUT(); 2314 ND_PRINT((ndo, " maxquota")); 2315 UINTOUT(); 2316 ND_PRINT((ndo, " minquota")); 2317 UINTOUT(); 2318 ND_PRINT((ndo, " owner")); 2319 UINTOUT(); 2320 ND_PRINT((ndo, " create")); 2321 DATEOUT(); 2322 ND_PRINT((ndo, " access")); 2323 DATEOUT(); 2324 ND_PRINT((ndo, " update")); 2325 DATEOUT(); 2326 ND_PRINT((ndo, " expire")); 2327 DATEOUT(); 2328 ND_PRINT((ndo, " backup")); 2329 DATEOUT(); 2330 ND_PRINT((ndo, " copy")); 2331 DATEOUT(); 2332 break; 2333 case 115: /* Old list partitions */ 2334 break; 2335 case 116: /* List volumes */ 2336 case 121: /* List one volume */ 2337 { 2338 unsigned long i, j; 2339 ND_TCHECK2(bp[0], 4); 2340 j = EXTRACT_32BITS(bp); 2341 bp += sizeof(int32_t); 2342 for (i = 0; i < j; i++) { 2343 ND_PRINT((ndo, " name")); 2344 VECOUT(32); 2345 ND_PRINT((ndo, " volid")); 2346 UINTOUT(); 2347 ND_PRINT((ndo, " type")); 2348 bp += sizeof(int32_t) * 21; 2349 if (i != j - 1) 2350 ND_PRINT((ndo, ",")); 2351 } 2352 if (j == 0) 2353 ND_PRINT((ndo, " <none!>")); 2354 } 2355 break; 2356 2357 2358 default: 2359 ; 2360 } 2361 } else { 2362 /* 2363 * Otherwise, just print out the return code 2364 */ 2365 ND_PRINT((ndo, " errcode")); 2366 INTOUT(); 2367 } 2368 2369 return; 2370 2371 trunc: 2372 ND_PRINT((ndo, " [|vol]")); 2373 } 2374 2375 /* 2376 * Handle calls to the AFS BOS service 2377 */ 2378 2379 static void 2380 bos_print(netdissect_options *ndo, 2381 register const u_char *bp, int length) 2382 { 2383 int bos_op; 2384 2385 if (length <= (int)sizeof(struct rx_header)) 2386 return; 2387 2388 if (ndo->ndo_snapend - bp + 1 <= (int)(sizeof(struct rx_header) + sizeof(int32_t))) { 2389 goto trunc; 2390 } 2391 2392 /* 2393 * Print out the afs call we're invoking. The table used here was 2394 * gleaned from bozo/bosint.xg 2395 */ 2396 2397 bos_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 2398 2399 ND_PRINT((ndo, " bos call %s", tok2str(bos_req, "op#%d", bos_op))); 2400 2401 /* 2402 * Decode some of the arguments to the BOS calls 2403 */ 2404 2405 bp += sizeof(struct rx_header) + 4; 2406 2407 switch (bos_op) { 2408 case 80: /* Create B node */ 2409 ND_PRINT((ndo, " type")); 2410 STROUT(BOSNAMEMAX); 2411 ND_PRINT((ndo, " instance")); 2412 STROUT(BOSNAMEMAX); 2413 break; 2414 case 81: /* Delete B node */ 2415 case 83: /* Get status */ 2416 case 85: /* Get instance info */ 2417 case 87: /* Add super user */ 2418 case 88: /* Delete super user */ 2419 case 93: /* Set cell name */ 2420 case 96: /* Add cell host */ 2421 case 97: /* Delete cell host */ 2422 case 104: /* Restart */ 2423 case 106: /* Uninstall */ 2424 case 108: /* Exec */ 2425 case 112: /* Getlog */ 2426 case 114: /* Get instance strings */ 2427 STROUT(BOSNAMEMAX); 2428 break; 2429 case 82: /* Set status */ 2430 case 98: /* Set T status */ 2431 STROUT(BOSNAMEMAX); 2432 ND_PRINT((ndo, " status")); 2433 INTOUT(); 2434 break; 2435 case 86: /* Get instance parm */ 2436 STROUT(BOSNAMEMAX); 2437 ND_PRINT((ndo, " num")); 2438 INTOUT(); 2439 break; 2440 case 84: /* Enumerate instance */ 2441 case 89: /* List super users */ 2442 case 90: /* List keys */ 2443 case 91: /* Add key */ 2444 case 92: /* Delete key */ 2445 case 95: /* Get cell host */ 2446 INTOUT(); 2447 break; 2448 case 105: /* Install */ 2449 STROUT(BOSNAMEMAX); 2450 ND_PRINT((ndo, " size")); 2451 INTOUT(); 2452 ND_PRINT((ndo, " flags")); 2453 INTOUT(); 2454 ND_PRINT((ndo, " date")); 2455 INTOUT(); 2456 break; 2457 default: 2458 ; 2459 } 2460 2461 return; 2462 2463 trunc: 2464 ND_PRINT((ndo, " [|bos]")); 2465 } 2466 2467 /* 2468 * Handle replies to the AFS BOS Service 2469 */ 2470 2471 static void 2472 bos_reply_print(netdissect_options *ndo, 2473 register const u_char *bp, int length, int32_t opcode) 2474 { 2475 const struct rx_header *rxh; 2476 2477 if (length <= (int)sizeof(struct rx_header)) 2478 return; 2479 2480 rxh = (const struct rx_header *) bp; 2481 2482 /* 2483 * Print out the afs call we're invoking. The table used here was 2484 * gleaned from volser/volint.xg 2485 */ 2486 2487 ND_PRINT((ndo, " bos reply %s", tok2str(bos_req, "op#%d", opcode))); 2488 2489 bp += sizeof(struct rx_header); 2490 2491 /* 2492 * If it was a data packet, interpret the response. 2493 */ 2494 2495 if (rxh->type == RX_PACKET_TYPE_DATA) 2496 /* Well, no, not really. Leave this for later */ 2497 ; 2498 else { 2499 /* 2500 * Otherwise, just print out the return code 2501 */ 2502 ND_PRINT((ndo, " errcode")); 2503 INTOUT(); 2504 } 2505 2506 return; 2507 2508 trunc: 2509 ND_PRINT((ndo, " [|bos]")); 2510 } 2511 2512 /* 2513 * Check to see if this is a Ubik opcode. 2514 */ 2515 2516 static int 2517 is_ubik(uint32_t opcode) 2518 { 2519 if ((opcode >= VOTE_LOW && opcode <= VOTE_HIGH) || 2520 (opcode >= DISK_LOW && opcode <= DISK_HIGH)) 2521 return(1); 2522 else 2523 return(0); 2524 } 2525 2526 /* 2527 * Handle Ubik opcodes to any one of the replicated database services 2528 */ 2529 2530 static void 2531 ubik_print(netdissect_options *ndo, 2532 register const u_char *bp) 2533 { 2534 int ubik_op; 2535 int32_t temp; 2536 2537 /* 2538 * Print out the afs call we're invoking. The table used here was 2539 * gleaned from ubik/ubik_int.xg 2540 */ 2541 2542 /* Every function that calls this function first makes a bounds check 2543 * for (sizeof(rx_header) + 4) bytes, so long as it remains this way 2544 * the line below will not over-read. 2545 */ 2546 ubik_op = EXTRACT_32BITS(bp + sizeof(struct rx_header)); 2547 2548 ND_PRINT((ndo, " ubik call %s", tok2str(ubik_req, "op#%d", ubik_op))); 2549 2550 /* 2551 * Decode some of the arguments to the Ubik calls 2552 */ 2553 2554 bp += sizeof(struct rx_header) + 4; 2555 2556 switch (ubik_op) { 2557 case 10000: /* Beacon */ 2558 ND_TCHECK2(bp[0], 4); 2559 temp = EXTRACT_32BITS(bp); 2560 bp += sizeof(int32_t); 2561 ND_PRINT((ndo, " syncsite %s", temp ? "yes" : "no")); 2562 ND_PRINT((ndo, " votestart")); 2563 DATEOUT(); 2564 ND_PRINT((ndo, " dbversion")); 2565 UBIK_VERSIONOUT(); 2566 ND_PRINT((ndo, " tid")); 2567 UBIK_VERSIONOUT(); 2568 break; 2569 case 10003: /* Get sync site */ 2570 ND_PRINT((ndo, " site")); 2571 UINTOUT(); 2572 break; 2573 case 20000: /* Begin */ 2574 case 20001: /* Commit */ 2575 case 20007: /* Abort */ 2576 case 20008: /* Release locks */ 2577 case 20010: /* Writev */ 2578 ND_PRINT((ndo, " tid")); 2579 UBIK_VERSIONOUT(); 2580 break; 2581 case 20002: /* Lock */ 2582 ND_PRINT((ndo, " tid")); 2583 UBIK_VERSIONOUT(); 2584 ND_PRINT((ndo, " file")); 2585 INTOUT(); 2586 ND_PRINT((ndo, " pos")); 2587 INTOUT(); 2588 ND_PRINT((ndo, " length")); 2589 INTOUT(); 2590 ND_TCHECK_32BITS(bp); 2591 temp = EXTRACT_32BITS(bp); 2592 bp += sizeof(int32_t); 2593 tok2str(ubik_lock_types, "type %d", temp); 2594 break; 2595 case 20003: /* Write */ 2596 ND_PRINT((ndo, " tid")); 2597 UBIK_VERSIONOUT(); 2598 ND_PRINT((ndo, " file")); 2599 INTOUT(); 2600 ND_PRINT((ndo, " pos")); 2601 INTOUT(); 2602 break; 2603 case 20005: /* Get file */ 2604 ND_PRINT((ndo, " file")); 2605 INTOUT(); 2606 break; 2607 case 20006: /* Send file */ 2608 ND_PRINT((ndo, " file")); 2609 INTOUT(); 2610 ND_PRINT((ndo, " length")); 2611 INTOUT(); 2612 ND_PRINT((ndo, " dbversion")); 2613 UBIK_VERSIONOUT(); 2614 break; 2615 case 20009: /* Truncate */ 2616 ND_PRINT((ndo, " tid")); 2617 UBIK_VERSIONOUT(); 2618 ND_PRINT((ndo, " file")); 2619 INTOUT(); 2620 ND_PRINT((ndo, " length")); 2621 INTOUT(); 2622 break; 2623 case 20012: /* Set version */ 2624 ND_PRINT((ndo, " tid")); 2625 UBIK_VERSIONOUT(); 2626 ND_PRINT((ndo, " oldversion")); 2627 UBIK_VERSIONOUT(); 2628 ND_PRINT((ndo, " newversion")); 2629 UBIK_VERSIONOUT(); 2630 break; 2631 default: 2632 ; 2633 } 2634 2635 return; 2636 2637 trunc: 2638 ND_PRINT((ndo, " [|ubik]")); 2639 } 2640 2641 /* 2642 * Handle Ubik replies to any one of the replicated database services 2643 */ 2644 2645 static void 2646 ubik_reply_print(netdissect_options *ndo, 2647 register const u_char *bp, int length, int32_t opcode) 2648 { 2649 const struct rx_header *rxh; 2650 2651 if (length < (int)sizeof(struct rx_header)) 2652 return; 2653 2654 rxh = (const struct rx_header *) bp; 2655 2656 /* 2657 * Print out the ubik call we're invoking. This table was gleaned 2658 * from ubik/ubik_int.xg 2659 */ 2660 2661 ND_PRINT((ndo, " ubik reply %s", tok2str(ubik_req, "op#%d", opcode))); 2662 2663 bp += sizeof(struct rx_header); 2664 2665 /* 2666 * If it was a data packet, print out the arguments to the Ubik calls 2667 */ 2668 2669 if (rxh->type == RX_PACKET_TYPE_DATA) 2670 switch (opcode) { 2671 case 10000: /* Beacon */ 2672 ND_PRINT((ndo, " vote no")); 2673 break; 2674 case 20004: /* Get version */ 2675 ND_PRINT((ndo, " dbversion")); 2676 UBIK_VERSIONOUT(); 2677 break; 2678 default: 2679 ; 2680 } 2681 2682 /* 2683 * Otherwise, print out "yes" it it was a beacon packet (because 2684 * that's how yes votes are returned, go figure), otherwise 2685 * just print out the error code. 2686 */ 2687 2688 else 2689 switch (opcode) { 2690 case 10000: /* Beacon */ 2691 ND_PRINT((ndo, " vote yes until")); 2692 DATEOUT(); 2693 break; 2694 default: 2695 ND_PRINT((ndo, " errcode")); 2696 INTOUT(); 2697 } 2698 2699 return; 2700 2701 trunc: 2702 ND_PRINT((ndo, " [|ubik]")); 2703 } 2704 2705 /* 2706 * Handle RX ACK packets. 2707 */ 2708 2709 static void 2710 rx_ack_print(netdissect_options *ndo, 2711 register const u_char *bp, int length) 2712 { 2713 const struct rx_ackPacket *rxa; 2714 int i, start, last; 2715 uint32_t firstPacket; 2716 2717 if (length < (int)sizeof(struct rx_header)) 2718 return; 2719 2720 bp += sizeof(struct rx_header); 2721 2722 /* 2723 * This may seem a little odd .... the rx_ackPacket structure 2724 * contains an array of individual packet acknowledgements 2725 * (used for selective ack/nack), but since it's variable in size, 2726 * we don't want to truncate based on the size of the whole 2727 * rx_ackPacket structure. 2728 */ 2729 2730 ND_TCHECK2(bp[0], sizeof(struct rx_ackPacket) - RX_MAXACKS); 2731 2732 rxa = (const struct rx_ackPacket *) bp; 2733 bp += (sizeof(struct rx_ackPacket) - RX_MAXACKS); 2734 2735 /* 2736 * Print out a few useful things from the ack packet structure 2737 */ 2738 2739 if (ndo->ndo_vflag > 2) 2740 ND_PRINT((ndo, " bufspace %d maxskew %d", 2741 (int) EXTRACT_16BITS(&rxa->bufferSpace), 2742 (int) EXTRACT_16BITS(&rxa->maxSkew))); 2743 2744 firstPacket = EXTRACT_32BITS(&rxa->firstPacket); 2745 ND_PRINT((ndo, " first %d serial %d reason %s", 2746 firstPacket, EXTRACT_32BITS(&rxa->serial), 2747 tok2str(rx_ack_reasons, "#%d", (int) rxa->reason))); 2748 2749 /* 2750 * Okay, now we print out the ack array. The way _this_ works 2751 * is that we start at "first", and step through the ack array. 2752 * If we have a contiguous range of acks/nacks, try to 2753 * collapse them into a range. 2754 * 2755 * If you're really clever, you might have noticed that this 2756 * doesn't seem quite correct. Specifically, due to structure 2757 * padding, sizeof(struct rx_ackPacket) - RX_MAXACKS won't actually 2758 * yield the start of the ack array (because RX_MAXACKS is 255 2759 * and the structure will likely get padded to a 2 or 4 byte 2760 * boundary). However, this is the way it's implemented inside 2761 * of AFS - the start of the extra fields are at 2762 * sizeof(struct rx_ackPacket) - RX_MAXACKS + nAcks, which _isn't_ 2763 * the exact start of the ack array. Sigh. That's why we aren't 2764 * using bp, but instead use rxa->acks[]. But nAcks gets added 2765 * to bp after this, so bp ends up at the right spot. Go figure. 2766 */ 2767 2768 if (rxa->nAcks != 0) { 2769 2770 ND_TCHECK2(bp[0], rxa->nAcks); 2771 2772 /* 2773 * Sigh, this is gross, but it seems to work to collapse 2774 * ranges correctly. 2775 */ 2776 2777 for (i = 0, start = last = -2; i < rxa->nAcks; i++) 2778 if (rxa->acks[i] == RX_ACK_TYPE_ACK) { 2779 2780 /* 2781 * I figured this deserved _some_ explanation. 2782 * First, print "acked" and the packet seq 2783 * number if this is the first time we've 2784 * seen an acked packet. 2785 */ 2786 2787 if (last == -2) { 2788 ND_PRINT((ndo, " acked %d", firstPacket + i)); 2789 start = i; 2790 } 2791 2792 /* 2793 * Otherwise, if there is a skip in 2794 * the range (such as an nacked packet in 2795 * the middle of some acked packets), 2796 * then print the current packet number 2797 * seperated from the last number by 2798 * a comma. 2799 */ 2800 2801 else if (last != i - 1) { 2802 ND_PRINT((ndo, ",%d", firstPacket + i)); 2803 start = i; 2804 } 2805 2806 /* 2807 * We always set last to the value of 2808 * the last ack we saw. Conversely, start 2809 * is set to the value of the first ack 2810 * we saw in a range. 2811 */ 2812 2813 last = i; 2814 2815 /* 2816 * Okay, this bit a code gets executed when 2817 * we hit a nack ... in _this_ case we 2818 * want to print out the range of packets 2819 * that were acked, so we need to print 2820 * the _previous_ packet number seperated 2821 * from the first by a dash (-). Since we 2822 * already printed the first packet above, 2823 * just print the final packet. Don't 2824 * do this if there will be a single-length 2825 * range. 2826 */ 2827 } else if (last == i - 1 && start != last) 2828 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2829 2830 /* 2831 * So, what's going on here? We ran off the end of the 2832 * ack list, and if we got a range we need to finish it up. 2833 * So we need to determine if the last packet in the list 2834 * was an ack (if so, then last will be set to it) and 2835 * we need to see if the last range didn't start with the 2836 * last packet (because if it _did_, then that would mean 2837 * that the packet number has already been printed and 2838 * we don't need to print it again). 2839 */ 2840 2841 if (last == i - 1 && start != last) 2842 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2843 2844 /* 2845 * Same as above, just without comments 2846 */ 2847 2848 for (i = 0, start = last = -2; i < rxa->nAcks; i++) 2849 if (rxa->acks[i] == RX_ACK_TYPE_NACK) { 2850 if (last == -2) { 2851 ND_PRINT((ndo, " nacked %d", firstPacket + i)); 2852 start = i; 2853 } else if (last != i - 1) { 2854 ND_PRINT((ndo, ",%d", firstPacket + i)); 2855 start = i; 2856 } 2857 last = i; 2858 } else if (last == i - 1 && start != last) 2859 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2860 2861 if (last == i - 1 && start != last) 2862 ND_PRINT((ndo, "-%d", firstPacket + i - 1)); 2863 2864 bp += rxa->nAcks; 2865 } 2866 2867 2868 /* 2869 * These are optional fields; depending on your version of AFS, 2870 * you may or may not see them 2871 */ 2872 2873 #define TRUNCRET(n) if (ndo->ndo_snapend - bp + 1 <= n) return; 2874 2875 if (ndo->ndo_vflag > 1) { 2876 TRUNCRET(4); 2877 ND_PRINT((ndo, " ifmtu")); 2878 INTOUT(); 2879 2880 TRUNCRET(4); 2881 ND_PRINT((ndo, " maxmtu")); 2882 INTOUT(); 2883 2884 TRUNCRET(4); 2885 ND_PRINT((ndo, " rwind")); 2886 INTOUT(); 2887 2888 TRUNCRET(4); 2889 ND_PRINT((ndo, " maxpackets")); 2890 INTOUT(); 2891 } 2892 2893 return; 2894 2895 trunc: 2896 ND_PRINT((ndo, " [|ack]")); 2897 } 2898 #undef TRUNCRET 2899