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