sbin/hammer2/cmd_debug.c

   1 /*
   2  * Copyright (c) 2011-2012 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@dragonflybsd.org>
   6  * by Venkatesh Srinivas <vsrinivas@dragonflybsd.org>
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the
  17  *    distribution.
  18  * 3. Neither the name of The DragonFly Project nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific, prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  25  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  26  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  28  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  29  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  30  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  31  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  32  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "hammer2.h"
  37
  38 #define SHOW_TAB        2
  39
  40 static void shell_msghandler(dmsg_msg_t *msg, int unmanaged);
  41 static void shell_ttymsg(dmsg_iocom_t *iocom);
  42 static void CountFreeBlocks(hammer2_bmap_data_t *bmap,
  43                 hammer2_off_t *accum16, hammer2_off_t *accum64);
  44
  45 /************************************************************************
  46  *                                  SHELL                               *
  47  ************************************************************************/
  48
  49 int
  50 cmd_shell(const char *hostname)
  51 {
  52         dmsg_master_service_info_t *info;
  53         pthread_t thread;
  54         int fd;
  55
  56         fd = dmsg_connect(hostname);
  57         if (fd < 0)
  58                 return 1;
  59
  60         info = malloc(sizeof(*info));
  61         bzero(info, sizeof(*info));
  62         info->fd = fd;
  63         info->detachme = 0;
  64         info->usrmsg_callback = shell_msghandler;
  65         info->altmsg_callback = shell_ttymsg;
  66         info->label = strdup("debug");
  67         pthread_create(&thread, NULL, dmsg_master_service, info);
  68         pthread_join(thread, NULL);
  69
  70         return 0;
  71 }
  72
  73 #if 0
  74 int
  75 cmd_shell(const char *hostname)
  76 {
  77         struct dmsg_iocom iocom;
  78         dmsg_msg_t *msg;
  79         int fd;
  80
  81         /*
  82          * Connect to the target
  83          */
  84         fd = dmsg_connect(hostname);
  85         if (fd < 0)
  86                 return 1;
  87
  88         /*
  89          * Initialize the session and transmit an empty DMSG_DBG_SHELL
  90          * to cause the remote end to generate a prompt.
  91          */
  92         dmsg_iocom_init(&iocom, fd, 0,
  93                         NULL,
  94                         shell_rcvmsg,
  95                         hammer2_shell_parse,
  96                         shell_ttymsg);
  97         fcntl(0, F_SETFL, O_NONBLOCK);
  98         printf("debug: connected\n");
  99
 100         msg = dmsg_msg_alloc(&iocom.state0, 0, DMSG_DBG_SHELL, NULL, NULL);
 101         dmsg_msg_write(msg);
 102         dmsg_iocom_core(&iocom);
 103         fprintf(stderr, "debug: disconnected\n");
 104         close(fd);
 105         return 0;
 106 }
 107 #endif
 108
 109 /*
 110  * Debug session front-end
 111  *
 112  * Callback from dmsg_iocom_core() when messages might be present
 113  * on the socket.
 114  */
 115 static
 116 void
 117 shell_msghandler(dmsg_msg_t *msg, int unmanaged)
 118 {
 119         dmsg_msg_t *nmsg;
 120
 121         switch(msg->tcmd) {
 122 #if 0
 123         case DMSG_LNK_ERROR:
 124         case DMSG_LNK_ERROR | DMSGF_REPLY:
 125                 /*
 126                  * One-way non-transactional LNK_ERROR messages typically
 127                  * indicate a connection failure.  Error code 0 is used by
 128                  * the debug shell to indicate no more results from last cmd.
 129                  */
 130                 if (msg->any.head.error) {
 131                         fprintf(stderr, "Stream failure: %s\n",
 132                                 dmsg_msg_str(msg));
 133                 } else {
 134                         write(1, "debug> ", 7);
 135                 }
 136                 break;
 137         case DMSG_LNK_ERROR | DMSGF_DELETE:
 138                 /* ignore termination of LNK_CONN */
 139                 break;
 140 #endif
 141         case DMSG_DBG_SHELL:
 142                 /*
 143                  * We send the commands, not accept them.
 144                  * (one-way message, not transactional)
 145                  */
 146                 if (unmanaged)
 147                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 148                 break;
 149         case DMSG_DBG_SHELL | DMSGF_REPLY:
 150                 /*
 151                  * A reply from the remote is data we copy to stdout.
 152                  * (one-way message, not transactional)
 153                  */
 154                 if (msg->aux_size) {
 155                         msg->aux_data[msg->aux_size - 1] = 0;
 156                         write(1, msg->aux_data, strlen(msg->aux_data));
 157                 }
 158                 break;
 159 #if 1
 160         case DMSG_LNK_CONN | DMSGF_CREATE:
 161                 fprintf(stderr, "Debug Shell received LNK_CONN\n");
 162                 nmsg = dmsg_msg_alloc(&msg->state->iocom->state0, 0,
 163                                       DMSG_DBG_SHELL,
 164                                       NULL, NULL);
 165                 dmsg_msg_write(nmsg);
 166                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 167                 break;
 168         case DMSG_LNK_CONN | DMSGF_DELETE:
 169                 break;
 170 #endif
 171         default:
 172                 /*
 173                  * Ignore any unknown messages, Terminate any unknown
 174                  * transactions with an error.
 175                  */
 176                 fprintf(stderr, "Unknown message: %s\n", dmsg_msg_str(msg));
 177                 if (unmanaged) {
 178                         if (msg->any.head.cmd & DMSGF_CREATE)
 179                                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 180                         if (msg->any.head.cmd & DMSGF_DELETE)
 181                                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 182                 }
 183                 break;
 184         }
 185 }
 186
 187 /*
 188  * Debug session front-end
 189  */
 190 static
 191 void
 192 shell_ttymsg(dmsg_iocom_t *iocom)
 193 {
 194         dmsg_state_t *pstate;
 195         dmsg_msg_t *msg;
 196         char buf[256];
 197         char *cmd;
 198         size_t len;
 199
 200         if (fgets(buf, sizeof(buf), stdin) != NULL) {
 201                 if (buf[0] == '@') {
 202                         pstate = dmsg_findspan(strtok(buf + 1, " \t\n"));
 203                         cmd = strtok(NULL, "\n");
 204                 } else {
 205                         pstate = &iocom->state0;
 206                         cmd = strtok(buf, "\n");
 207                 }
 208                 if (cmd && pstate) {
 209                         len = strlen(cmd) + 1;
 210                         msg = dmsg_msg_alloc(pstate, len, DMSG_DBG_SHELL,
 211                                              NULL, NULL);
 212                         bcopy(cmd, msg->aux_data, len);
 213                         dmsg_msg_write(msg);
 214                 } else if (cmd) {
 215                         fprintf(stderr, "@msgid not found\n");
 216                 } else {
 217                         /*
 218                          * This should cause the remote end to generate
 219                          * a debug> prompt (and thus shows that there is
 220                          * connectivity).
 221                          */
 222                         msg = dmsg_msg_alloc(pstate, 0, DMSG_DBG_SHELL,
 223                                              NULL, NULL);
 224                         dmsg_msg_write(msg);
 225                 }
 226         } else if (feof(stdin)) {
 227                 /*
 228                  * Set EOF flag without setting any error code for normal
 229                  * EOF.
 230                  */
 231                 iocom->flags |= DMSG_IOCOMF_EOF;
 232         } else {
 233                 clearerr(stdin);
 234         }
 235 }
 236
 237 /*
 238  * Debug session back-end (on remote side)
 239  */
 240 static void shell_span(dmsg_msg_t *msg, char *cmdbuf);
 241 static void shell_ping(dmsg_msg_t *msg, char *cmdbuf);
 242
 243 void
 244 hammer2_shell_parse(dmsg_msg_t *msg, int unmanaged)
 245 {
 246         dmsg_iocom_t *iocom = msg->state->iocom;
 247         char *cmdbuf;
 248         char *cmdp;
 249         uint32_t cmd;
 250
 251         /*
 252          * Filter on debug shell commands and ping responses only
 253          */
 254         cmd = msg->any.head.cmd;
 255         if ((cmd & DMSGF_CMDSWMASK) == (DMSG_LNK_PING | DMSGF_REPLY)) {
 256                 dmsg_printf(iocom, "ping reply\n");
 257                 return;
 258         }
 259
 260         if ((cmd & DMSGF_PROTOS) != DMSG_PROTO_DBG) {
 261                 if (unmanaged)
 262                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 263                 return;
 264         }
 265         if ((cmd & DMSGF_CMDSWMASK) != DMSG_DBG_SHELL) {
 266                 if (unmanaged)
 267                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 268                 return;
 269         }
 270
 271         /*
 272          * Debug shell command
 273          */
 274         cmdbuf = msg->aux_data;
 275         cmdp = strsep(&cmdbuf, " \t");
 276
 277         if (cmdp == NULL || *cmdp == 0) {
 278                 ;
 279         } else if (strcmp(cmdp, "ping") == 0) {
 280                 shell_ping(msg, cmdbuf);
 281         } else if (strcmp(cmdp, "span") == 0) {
 282                 shell_span(msg, cmdbuf);
 283         } else if (strcmp(cmdp, "tree") == 0) {
 284                 dmsg_shell_tree(iocom, cmdbuf); /* dump spanning tree */
 285         } else if (strcmp(cmdp, "help") == 0 || strcmp(cmdp, "?") == 0) {
 286                 dmsg_printf(iocom, "help            Command help\n");
 287                 dmsg_printf(iocom, "span <host>     Span to target host\n");
 288                 dmsg_printf(iocom, "tree            Dump spanning tree\n");
 289                 dmsg_printf(iocom, "@span <cmd>     Issue via circuit\n");
 290         } else {
 291                 dmsg_printf(iocom, "Unrecognized command: %s\n", cmdp);
 292         }
 293         dmsg_printf(iocom, "debug> ");
 294 }
 295
 296 static void
 297 shell_ping(dmsg_msg_t *msg, char *cmdbuf __unused)
 298 {
 299         dmsg_iocom_t *iocom = msg->state->iocom;
 300         dmsg_msg_t *m2;
 301
 302         dmsg_printf(iocom, "sending ping\n");
 303         m2 = dmsg_msg_alloc(msg->state, 0, DMSG_LNK_PING, NULL, NULL);
 304         dmsg_msg_write(m2);
 305 }
 306
 307 static void
 308 shell_span(dmsg_msg_t *msg, char *cmdbuf)
 309 {
 310         dmsg_iocom_t *iocom = msg->state->iocom;
 311         dmsg_master_service_info_t *info;
 312         const char *hostname = strsep(&cmdbuf, " \t");
 313         pthread_t thread;
 314         int fd;
 315
 316         /*
 317          * Connect to the target
 318          */
 319         if (hostname == NULL) {
 320                 fd = -1;
 321         } else {
 322                 fd = dmsg_connect(hostname);
 323         }
 324
 325         /*
 326          * Start master service
 327          */
 328         if (fd < 0) {
 329                 dmsg_printf(iocom, "Connection to %s failed\n", hostname);
 330         } else {
 331                 dmsg_printf(iocom, "Connected to %s\n", hostname);
 332
 333                 info = malloc(sizeof(*info));
 334                 bzero(info, sizeof(*info));
 335                 info->fd = fd;
 336                 info->detachme = 1;
 337                 info->usrmsg_callback = hammer2_shell_parse;
 338                 info->label = strdup("client");
 339
 340                 pthread_create(&thread, NULL, dmsg_master_service, info);
 341                 /*pthread_join(thread, &res);*/
 342         }
 343 }
 344
 345 /************************************************************************
 346  *                              DEBUGSPAN                               *
 347  ************************************************************************
 348  *
 349  * Connect to the target manually (not via the cluster list embedded in
 350  * a hammer2 filesystem) and initiate the SPAN protocol.
 351  */
 352 int
 353 cmd_debugspan(const char *hostname)
 354 {
 355         pthread_t thread;
 356         int fd;
 357         void *res;
 358
 359         /*
 360          * Connect to the target
 361          */
 362         fd = dmsg_connect(hostname);
 363         if (fd < 0)
 364                 return 1;
 365
 366         printf("debugspan: connected to %s, starting CONN/SPAN\n", hostname);
 367         pthread_create(&thread, NULL,
 368                        dmsg_master_service, (void *)(intptr_t)fd);
 369         pthread_join(thread, &res);
 370         return(0);
 371 }
 372
 373 /************************************************************************
 374  *                                  SHOW                                *
 375  ************************************************************************/
 376
 377 static void show_bref(hammer2_volume_data_t *voldata, int fd, int tab,
 378                         int bi, hammer2_blockref_t *bref,
 379                         int dofreemap, int norecurse);
 380 static void tabprintf(int tab, const char *ctl, ...);
 381
 382 int64_t TotalFreeAccum16;
 383 int64_t TotalFreeAccum64;
 384
 385 int
 386 cmd_show(const char *devpath, int dofreemap)
 387 {
 388         hammer2_blockref_t broot;
 389         hammer2_blockref_t best;
 390         hammer2_media_data_t media;
 391         int fd;
 392         int i;
 393         int best_i;
 394
 395         TotalFreeAccum16 = 0;   /* includes TotalFreeAccum64 */
 396         TotalFreeAccum64 = 0;
 397         fd = open(devpath, O_RDONLY);
 398         if (fd < 0) {
 399                 perror("open");
 400                 return 1;
 401         }
 402
 403         /*
 404          * Show the tree using the best volume header.
 405          * -vvv will show the tree for all four volume headers.
 406          */
 407         best_i = -1;
 408         bzero(&best, sizeof(best));
 409         for (i = 0; i < 4; ++i) {
 410                 bzero(&broot, sizeof(broot));
 411                 broot.type = HAMMER2_BREF_TYPE_VOLUME;
 412                 broot.data_off = (i * HAMMER2_ZONE_BYTES64) |
 413                                  HAMMER2_PBUFRADIX;
 414                 lseek(fd, broot.data_off & ~HAMMER2_OFF_MASK_RADIX, 0);
 415                 if (read(fd, &media, HAMMER2_PBUFSIZE) ==
 416                     (ssize_t)HAMMER2_PBUFSIZE) {
 417                         broot.mirror_tid = media.voldata.mirror_tid;
 418                         if (best_i < 0 || best.mirror_tid < broot.mirror_tid) {
 419                                 best_i = i;
 420                                 best = broot;
 421                         }
 422                         if (VerboseOpt >= 3)
 423                                 show_bref(&media.voldata, fd, 0, i, &broot, dofreemap, 0);
 424                 }
 425         }
 426         if (VerboseOpt < 3)
 427                 show_bref(&media.voldata, fd, 0, best_i, &best, dofreemap, 0);
 428         close(fd);
 429
 430         if (dofreemap && VerboseOpt < 3) {
 431                 printf("Total free storage: %6.3fGB (%6.3fGB in 64KB chunks)\n",
 432                        (double)TotalFreeAccum16 / (1024.0 * 1024.0 * 1024.0),
 433                        (double)TotalFreeAccum64 / (1024.0 * 1024.0 * 1024.0));
 434         }
 435
 436         return 0;
 437 }
 438
 439 extern uint32_t iscsi_crc32(const void *buf, size_t size);
 440 static void
 441 show_bref(hammer2_volume_data_t *voldata, int fd, int tab,
 442           int bi, hammer2_blockref_t *bref, int dofreemap, int norecurse)
 443 {
 444         hammer2_media_data_t media;
 445         hammer2_blockref_t *bscan;
 446         int bcount;
 447         int i;
 448         int didnl;
 449         int namelen;
 450         int obrace = 1;
 451         int failed;
 452         size_t bytes;
 453         const char *type_str;
 454         char *str = NULL;
 455         uint32_t cv;
 456         uint64_t cv64;
 457
 458         switch(bref->type) {
 459         case HAMMER2_BREF_TYPE_EMPTY:
 460                 type_str = "empty";
 461                 break;
 462         case HAMMER2_BREF_TYPE_DIRENT:
 463                 type_str = "dirent";
 464                 break;
 465         case HAMMER2_BREF_TYPE_INODE:
 466                 type_str = "inode";
 467                 break;
 468         case HAMMER2_BREF_TYPE_INDIRECT:
 469                 type_str = "indblk";
 470                 break;
 471         case HAMMER2_BREF_TYPE_DATA:
 472                 type_str = "data";
 473                 break;
 474         case HAMMER2_BREF_TYPE_VOLUME:
 475                 type_str = "volume";
 476                 break;
 477         case HAMMER2_BREF_TYPE_FREEMAP:
 478                 type_str = "freemap";
 479                 break;
 480         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 481                 type_str = "fmapnode";
 482                 break;
 483         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 484                 type_str = "fbitmap";
 485                 break;
 486         default:
 487                 type_str = "unknown";
 488                 break;
 489         }
 490
 491         tabprintf(tab,
 492                   "%s.%-3d %016jx %016jx/%-2d "
 493                   "mir=%016jx mod=%016jx leafcnt=%d ",
 494                type_str, bi, (intmax_t)bref->data_off,
 495                (intmax_t)bref->key, (intmax_t)bref->keybits,
 496                (intmax_t)bref->mirror_tid, (intmax_t)bref->modify_tid,
 497                bref->leaf_count);
 498         tab += SHOW_TAB;
 499         if (bref->flags)
 500                 printf("flags=%02x ", bref->flags);
 501         if (bref->type == HAMMER2_BREF_TYPE_FREEMAP_NODE ||
 502             bref->type == HAMMER2_BREF_TYPE_FREEMAP_LEAF) {
 503                 printf("bigmask=%08x avail=%ld ",
 504                         bref->check.freemap.bigmask, bref->check.freemap.avail);
 505         }
 506
 507         bytes = (bref->data_off & HAMMER2_OFF_MASK_RADIX);
 508         if (bytes)
 509                 bytes = (size_t)1 << bytes;
 510         if (bytes) {
 511                 hammer2_off_t io_off;
 512                 hammer2_off_t io_base;
 513                 size_t io_bytes;
 514                 size_t boff;
 515
 516                 io_off = bref->data_off & ~HAMMER2_OFF_MASK_RADIX;
 517                 io_base = io_off & ~(hammer2_off_t)(HAMMER2_MINIOSIZE - 1);
 518                 io_bytes = bytes;
 519                 boff = io_off - io_base;
 520
 521                 io_bytes = HAMMER2_MINIOSIZE;
 522                 while (io_bytes + boff < bytes)
 523                         io_bytes <<= 1;
 524
 525                 if (io_bytes > sizeof(media)) {
 526                         printf("(bad block size %zd)\n", bytes);
 527                         return;
 528                 }
 529                 if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
 530                         lseek(fd, io_base, 0);
 531                         if (read(fd, &media, io_bytes) != (ssize_t)io_bytes) {
 532                                 printf("(media read failed)\n");
 533                                 return;
 534                         }
 535                         if (boff)
 536                                 bcopy((char *)&media + boff, &media, bytes);
 537                 }
 538         }
 539
 540         bscan = NULL;
 541         bcount = 0;
 542         didnl = 1;
 543         namelen = 0;
 544         failed = 0;
 545
 546         /*
 547          * Check data integrity in verbose mode, otherwise we are just doing
 548          * a quick meta-data scan.  Meta-data integrity is always checked.
 549          * (Also see the check above that ensures the media data is loaded,
 550          * otherwise there's no data to check!).
 551          *
 552          * WARNING! bref->check state may be used for other things when
 553          *          bref has no data (bytes == 0).
 554          */
 555         if (bytes &&
 556             (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1)) {
 557                 switch(HAMMER2_DEC_CHECK(bref->methods)) {
 558                 case HAMMER2_CHECK_NONE:
 559                         printf("(meth %02x) ", bref->methods);
 560                         break;
 561                 case HAMMER2_CHECK_DISABLED:
 562                         printf("(meth %02x) ", bref->methods);
 563                         break;
 564                 case HAMMER2_CHECK_ISCSI32:
 565                         cv = hammer2_icrc32(&media, bytes);
 566                         if (bref->check.iscsi32.value != cv) {
 567                                 printf("(icrc %02x:%08x/%08x failed) ",
 568                                        bref->methods,
 569                                        bref->check.iscsi32.value,
 570                                        cv);
 571                                 failed = 1;
 572                         } else {
 573                                 printf("(meth %02x, iscsi32=%08x) ",
 574                                        bref->methods, cv);
 575                         }
 576                         break;
 577                 case HAMMER2_CHECK_XXHASH64:
 578                         cv64 = XXH64(&media, bytes, XXH_HAMMER2_SEED);
 579                         if (bref->check.xxhash64.value != cv64) {
 580                                 printf("(xxhash64 %02x:%016jx/%016jx failed) ",
 581                                        bref->methods,
 582                                        bref->check.xxhash64.value,
 583                                        cv64);
 584                                 failed = 1;
 585                         } else {
 586                                 printf("(meth %02x, xxh=%016jx) ",
 587                                        bref->methods, cv64);
 588                         }
 589                         break;
 590                 case HAMMER2_CHECK_SHA192:
 591                         printf("(meth %02x) ", bref->methods);
 592                         break;
 593                 case HAMMER2_CHECK_FREEMAP:
 594                         cv = hammer2_icrc32(&media, bytes);
 595                         if (bref->check.freemap.icrc32 != cv) {
 596                                 printf("(fcrc %02x:%08x/%08x failed) ",
 597                                         bref->methods,
 598                                         bref->check.freemap.icrc32,
 599                                         cv);
 600                                 failed = 1;
 601                         } else {
 602                                 printf("(meth %02x, fcrc=%08x) ",
 603                                         bref->methods, cv);
 604                         }
 605                         break;
 606                 }
 607         }
 608
 609         switch(bref->type) {
 610         case HAMMER2_BREF_TYPE_EMPTY:
 611                 obrace = 0;
 612                 break;
 613         case HAMMER2_BREF_TYPE_DIRENT:
 614                 printf("{\n");
 615                 if (bref->embed.dirent.namlen <= sizeof(bref->check.buf)) {
 616                         tabprintf(tab, "filename \"%*.*s\"\n",
 617                                 bref->embed.dirent.namlen,
 618                                 bref->embed.dirent.namlen,
 619                                 bref->check.buf);
 620                 } else {
 621                         tabprintf(tab, "filename \"%*.*s\"\n",
 622                                 bref->embed.dirent.namlen,
 623                                 bref->embed.dirent.namlen,
 624                                 media.buf);
 625                 }
 626                 tabprintf(tab, "inum 0x%016jx\n",
 627                         (uintmax_t)bref->embed.dirent.inum);
 628                 tabprintf(tab, "type     %s\n",
 629                           hammer2_iptype_to_str(bref->embed.dirent.type));
 630                 break;
 631         case HAMMER2_BREF_TYPE_INODE:
 632                 printf("{\n");
 633                 if (media.ipdata.meta.op_flags & HAMMER2_OPFLAG_DIRECTDATA) {
 634                         /* no blockrefs */
 635                 } else {
 636                         bscan = &media.ipdata.u.blockset.blockref[0];
 637                         bcount = HAMMER2_SET_COUNT;
 638                 }
 639                 namelen = media.ipdata.meta.name_len;
 640                 if (namelen > HAMMER2_INODE_MAXNAME)
 641                         namelen = 0;
 642                 tabprintf(tab, "filename \"%*.*s\"\n",
 643                           namelen, namelen, media.ipdata.filename);
 644                 tabprintf(tab, "version  %d\n", media.ipdata.meta.version);
 645                 tabprintf(tab, "uflags   0x%08x\n",
 646                           media.ipdata.meta.uflags);
 647                 if (media.ipdata.meta.rmajor || media.ipdata.meta.rminor) {
 648                         tabprintf(tab, "rmajor   %d\n",
 649                                   media.ipdata.meta.rmajor);
 650                         tabprintf(tab, "rminor   %d\n",
 651                                   media.ipdata.meta.rminor);
 652                 }
 653                 tabprintf(tab, "ctime    %s\n",
 654                           hammer2_time64_to_str(media.ipdata.meta.ctime, &str));
 655                 tabprintf(tab, "mtime    %s\n",
 656                           hammer2_time64_to_str(media.ipdata.meta.mtime, &str));
 657                 tabprintf(tab, "atime    %s\n",
 658                           hammer2_time64_to_str(media.ipdata.meta.atime, &str));
 659                 tabprintf(tab, "btime    %s\n",
 660                           hammer2_time64_to_str(media.ipdata.meta.btime, &str));
 661                 tabprintf(tab, "uid      %s\n",
 662                           hammer2_uuid_to_str(&media.ipdata.meta.uid, &str));
 663                 tabprintf(tab, "gid      %s\n",
 664                           hammer2_uuid_to_str(&media.ipdata.meta.gid, &str));
 665                 tabprintf(tab, "type     %s\n",
 666                           hammer2_iptype_to_str(media.ipdata.meta.type));
 667                 tabprintf(tab, "opflgs   0x%02x\n",
 668                           media.ipdata.meta.op_flags);
 669                 tabprintf(tab, "capflgs  0x%04x\n",
 670                           media.ipdata.meta.cap_flags);
 671                 tabprintf(tab, "mode     %-7o\n",
 672                           media.ipdata.meta.mode);
 673                 tabprintf(tab, "inum     0x%016jx\n",
 674                           media.ipdata.meta.inum);
 675                 tabprintf(tab, "size     %ju\n",
 676                           (uintmax_t)media.ipdata.meta.size);
 677                 tabprintf(tab, "nlinks   %ju\n",
 678                           (uintmax_t)media.ipdata.meta.nlinks);
 679                 tabprintf(tab, "iparent  0x%016jx\n",
 680                           (uintmax_t)media.ipdata.meta.iparent);
 681                 tabprintf(tab, "name_key 0x%016jx\n",
 682                           (uintmax_t)media.ipdata.meta.name_key);
 683                 tabprintf(tab, "name_len %u\n",
 684                           media.ipdata.meta.name_len);
 685                 tabprintf(tab, "ncopies  %u\n",
 686                           media.ipdata.meta.ncopies);
 687                 tabprintf(tab, "compalg  %u\n",
 688                           media.ipdata.meta.comp_algo);
 689                 tabprintf(tab, "checkalg %u\n",
 690                           media.ipdata.meta.check_algo);
 691                 if ((media.ipdata.meta.op_flags & HAMMER2_OPFLAG_PFSROOT) ||
 692                     media.ipdata.meta.pfs_type == HAMMER2_PFSTYPE_SUPROOT) {
 693                         tabprintf(tab, "pfs_type %u (%s)\n",
 694                                   media.ipdata.meta.pfs_type,
 695                                   hammer2_pfstype_to_str(media.ipdata.meta.pfs_type));
 696                         tabprintf(tab, "pfs_inum 0x%016jx\n",
 697                                   (uintmax_t)media.ipdata.meta.pfs_inum);
 698                         tabprintf(tab, "pfs_clid %s\n",
 699                                   hammer2_uuid_to_str(&media.ipdata.meta.pfs_clid,
 700                                                       &str));
 701                         tabprintf(tab, "pfs_fsid %s\n",
 702                                   hammer2_uuid_to_str(&media.ipdata.meta.pfs_fsid,
 703                                                       &str));
 704                         tabprintf(tab, "pfs_lsnap_tid 0x%016jx\n",
 705                                   (uintmax_t)media.ipdata.meta.pfs_lsnap_tid);
 706                 }
 707                 tabprintf(tab, "data_quota  %ju\n",
 708                           (uintmax_t)media.ipdata.meta.data_quota);
 709                 tabprintf(tab, "data_count  %ju\n",
 710                           (uintmax_t)bref->embed.stats.data_count);
 711                 tabprintf(tab, "inode_quota %ju\n",
 712                           (uintmax_t)media.ipdata.meta.inode_quota);
 713                 tabprintf(tab, "inode_count %ju\n",
 714                           (uintmax_t)bref->embed.stats.inode_count);
 715                 break;
 716         case HAMMER2_BREF_TYPE_INDIRECT:
 717                 bscan = &media.npdata[0];
 718                 bcount = bytes / sizeof(hammer2_blockref_t);
 719                 didnl = 1;
 720                 printf("{\n");
 721                 break;
 722         case HAMMER2_BREF_TYPE_DATA:
 723 #if 0
 724                 if (VerboseOpt >= 2) {
 725                         printf("{\n");
 726                 } else
 727 #endif
 728                 {
 729                         printf("\n");
 730                         obrace = 0;
 731                 }
 732                 break;
 733         case HAMMER2_BREF_TYPE_VOLUME:
 734                 printf("mirror_tid=%016jx freemap_tid=%016jx ",
 735                         media.voldata.mirror_tid,
 736                         media.voldata.freemap_tid);
 737                 if (dofreemap) {
 738                         bscan = &media.voldata.freemap_blockset.blockref[0];
 739                         bcount = HAMMER2_SET_COUNT;
 740                 } else {
 741                         bscan = &media.voldata.sroot_blockset.blockref[0];
 742                         bcount = HAMMER2_SET_COUNT;
 743                 }
 744                 printf("{\n");
 745                 break;
 746         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 747                 printf("{\n");
 748                 for (i = 0; i < HAMMER2_FREEMAP_COUNT; ++i) {
 749                         hammer2_off_t data_off;
 750
 751                         data_off = bref->key +
 752                                    i * 256 * HAMMER2_FREEMAP_BLOCK_SIZE;
 753                         /*
 754                         if (media.bmdata[i].class == 0 &&
 755                             media.bmdata[i].avail == 0) {
 756                                 continue;
 757                         }
 758                         */
 759 #if HAMMER2_BMAP_ELEMENTS != 8
 760 #error "cmd_debug.c: HAMMER2_BMAP_ELEMENTS expected to be 8"
 761 #endif
 762
 763                         tabprintf(tab + 4, "%016jx %04d.%04x (avail=%7d) "
 764                                   "%016jx %016jx %016jx %016jx "
 765                                   "%016jx %016jx %016jx %016jx\n",
 766                                   data_off,
 767                                   i, media.bmdata[i].class,
 768                                   media.bmdata[i].avail,
 769                                   media.bmdata[i].bitmapq[0],
 770                                   media.bmdata[i].bitmapq[1],
 771                                   media.bmdata[i].bitmapq[2],
 772                                   media.bmdata[i].bitmapq[3],
 773                                   media.bmdata[i].bitmapq[4],
 774                                   media.bmdata[i].bitmapq[5],
 775                                   media.bmdata[i].bitmapq[6],
 776                                   media.bmdata[i].bitmapq[7]);
 777                         if (data_off >= voldata->aux_end &&
 778                             data_off < voldata->volu_size) {
 779                                 CountFreeBlocks(&media.bmdata[i],
 780                                                 &TotalFreeAccum16,
 781                                                 &TotalFreeAccum64);
 782                         }
 783                 }
 784                 tabprintf(tab, "}\n");
 785                 break;
 786         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 787                 printf("{\n");
 788                 bscan = &media.npdata[0];
 789                 bcount = bytes / sizeof(hammer2_blockref_t);
 790                 break;
 791         default:
 792                 printf("\n");
 793                 obrace = 0;
 794                 break;
 795         }
 796         if (str)
 797                 free(str);
 798
 799         /*
 800          * Recurse if norecurse == 0.  If the CRC failed, pass norecurse = 1.
 801          * That is, if an indirect or inode fails we still try to list its
 802          * direct children to help with debugging, but go no further than
 803          * that because they are probably garbage.
 804          */
 805         for (i = 0; norecurse == 0 && i < bcount; ++i) {
 806                 if (bscan[i].type != HAMMER2_BREF_TYPE_EMPTY) {
 807                         if (didnl == 0) {
 808                                 printf("\n");
 809                                 didnl = 1;
 810                         }
 811                         show_bref(voldata, fd, tab,
 812                                   i, &bscan[i], dofreemap, failed);
 813                 }
 814         }
 815         tab -= SHOW_TAB;
 816         if (obrace) {
 817                 if (bref->type == HAMMER2_BREF_TYPE_INODE)
 818                         tabprintf(tab, "} (%s.%d, \"%*.*s\")\n",
 819                                   type_str, bi,
 820                                   namelen, namelen, media.ipdata.filename);
 821                 else
 822                         tabprintf(tab, "} (%s.%d)\n", type_str,bi);
 823         }
 824 }
 825
 826 static
 827 void
 828 CountFreeBlocks(hammer2_bmap_data_t *bmap,
 829                 hammer2_off_t *accum16, hammer2_off_t *accum64)
 830 {
 831         int i;
 832         int j;
 833
 834         for (i = 0; i < 8; ++i) {
 835                 uint64_t bm = bmap->bitmapq[i];
 836                 uint64_t mask;
 837
 838                 mask = 0x03;
 839                 for (j = 0; j < 64; j += 2) {
 840                         if ((bm & mask) == 0)
 841                                 *accum16 += 16384;
 842                 }
 843                 mask = 0xFF;
 844                 for (j = 0; j < 64; j += 8) {
 845                         if ((bm & mask) == 0)
 846                                 *accum64 += 65536;
 847                 }
 848         }
 849 }
 850
 851 int
 852 cmd_hash(int ac, const char **av)
 853 {
 854         int i;
 855
 856         for (i = 0; i < ac; ++i) {
 857                 printf("%016jx %s\n", dirhash(av[i], strlen(av[i])), av[i]);
 858         }
 859         return(0);
 860 }
 861
 862 int
 863 cmd_chaindump(const char *path)
 864 {
 865         int dummy = 0;
 866         int fd;
 867
 868         fd = open(path, O_RDONLY);
 869         if (fd >= 0) {
 870                 ioctl(fd, HAMMER2IOC_DEBUG_DUMP, &dummy);
 871                 close(fd);
 872         } else {
 873                 fprintf(stderr, "unable to open %s\n", path);
 874         }
 875         return 0;
 876 }
 877
 878
 879 static
 880 void
 881 tabprintf(int tab, const char *ctl, ...)
 882 {
 883         va_list va;
 884
 885         printf("%*.*s", tab, tab, "");
 886         va_start(va, ctl);
 887         vprintf(ctl, va);
 888         va_end(va);
 889 }