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
 240 void
 241 hammer2_shell_parse(dmsg_msg_t *msg, int unmanaged)
 242 {
 243         dmsg_iocom_t *iocom = msg->state->iocom;
 244         char *cmdbuf;
 245         char *cmdp;
 246         uint32_t cmd;
 247
 248         /*
 249          * Filter on debug shell commands only
 250          */
 251         cmd = msg->any.head.cmd;
 252         if ((cmd & DMSGF_PROTOS) != DMSG_PROTO_DBG) {
 253                 if (unmanaged)
 254                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 255                 return;
 256         }
 257         if ((cmd & DMSGF_CMDSWMASK) != DMSG_DBG_SHELL) {
 258                 if (unmanaged)
 259                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 260                 return;
 261         }
 262
 263         /*
 264          * Debug shell command
 265          */
 266         cmdbuf = msg->aux_data;
 267         cmdp = strsep(&cmdbuf, " \t");
 268
 269         if (cmdp == NULL || *cmdp == 0) {
 270                 ;
 271         } else if (strcmp(cmdp, "span") == 0) {
 272                 shell_span(msg, cmdbuf);
 273         } else if (strcmp(cmdp, "tree") == 0) {
 274                 dmsg_shell_tree(iocom, cmdbuf); /* dump spanning tree */
 275         } else if (strcmp(cmdp, "help") == 0 || strcmp(cmdp, "?") == 0) {
 276                 dmsg_printf(iocom, "help            Command help\n");
 277                 dmsg_printf(iocom, "span <host>     Span to target host\n");
 278                 dmsg_printf(iocom, "tree            Dump spanning tree\n");
 279                 dmsg_printf(iocom, "@span <cmd>     Issue via circuit\n");
 280         } else {
 281                 dmsg_printf(iocom, "Unrecognized command: %s\n", cmdp);
 282         }
 283         dmsg_printf(iocom, "debug> ");
 284 }
 285
 286 static void
 287 shell_span(dmsg_msg_t *msg, char *cmdbuf)
 288 {
 289         dmsg_iocom_t *iocom = msg->state->iocom;
 290         dmsg_master_service_info_t *info;
 291         const char *hostname = strsep(&cmdbuf, " \t");
 292         pthread_t thread;
 293         int fd;
 294
 295         /*
 296          * Connect to the target
 297          */
 298         if (hostname == NULL) {
 299                 fd = -1;
 300         } else {
 301                 fd = dmsg_connect(hostname);
 302         }
 303
 304         /*
 305          * Start master service
 306          */
 307         if (fd < 0) {
 308                 dmsg_printf(iocom, "Connection to %s failed\n", hostname);
 309         } else {
 310                 dmsg_printf(iocom, "Connected to %s\n", hostname);
 311
 312                 info = malloc(sizeof(*info));
 313                 bzero(info, sizeof(*info));
 314                 info->fd = fd;
 315                 info->detachme = 1;
 316                 info->usrmsg_callback = hammer2_shell_parse;
 317                 info->label = strdup("client");
 318
 319                 pthread_create(&thread, NULL, dmsg_master_service, info);
 320                 /*pthread_join(thread, &res);*/
 321         }
 322 }
 323
 324 /************************************************************************
 325  *                              DEBUGSPAN                               *
 326  ************************************************************************
 327  *
 328  * Connect to the target manually (not via the cluster list embedded in
 329  * a hammer2 filesystem) and initiate the SPAN protocol.
 330  */
 331 int
 332 cmd_debugspan(const char *hostname)
 333 {
 334         pthread_t thread;
 335         int fd;
 336         void *res;
 337
 338         /*
 339          * Connect to the target
 340          */
 341         fd = dmsg_connect(hostname);
 342         if (fd < 0)
 343                 return 1;
 344
 345         printf("debugspan: connected to %s, starting CONN/SPAN\n", hostname);
 346         pthread_create(&thread, NULL,
 347                        dmsg_master_service, (void *)(intptr_t)fd);
 348         pthread_join(thread, &res);
 349         return(0);
 350 }
 351
 352 /************************************************************************
 353  *                                  SHOW                                *
 354  ************************************************************************/
 355
 356 static void show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref,
 357                         int dofreemap);
 358 static void tabprintf(int tab, const char *ctl, ...);
 359
 360 int
 361 cmd_show(const char *devpath, int dofreemap)
 362 {
 363         hammer2_blockref_t broot;
 364         hammer2_blockref_t best;
 365         hammer2_media_data_t media;
 366         int fd;
 367         int i;
 368         int best_i;
 369
 370         fd = open(devpath, O_RDONLY);
 371         if (fd < 0) {
 372                 perror("open");
 373                 return 1;
 374         }
 375
 376         /*
 377          * Show the tree using the best volume header.
 378          * -vvv will show the tree for all four volume headers.
 379          */
 380         best_i = -1;
 381         bzero(&best, sizeof(best));
 382         for (i = 0; i < 4; ++i) {
 383                 bzero(&broot, sizeof(broot));
 384                 broot.type = HAMMER2_BREF_TYPE_VOLUME;
 385                 broot.data_off = (i * HAMMER2_ZONE_BYTES64) |
 386                                  HAMMER2_PBUFRADIX;
 387                 lseek(fd, broot.data_off & ~HAMMER2_OFF_MASK_RADIX, 0);
 388                 if (read(fd, &media, HAMMER2_PBUFSIZE) ==
 389                     (ssize_t)HAMMER2_PBUFSIZE) {
 390                         broot.mirror_tid = media.voldata.mirror_tid;
 391                         if (best_i < 0 || best.mirror_tid < broot.mirror_tid) {
 392                                 best_i = i;
 393                                 best = broot;
 394                         }
 395                         if (VerboseOpt >= 3)
 396                                 show_bref(fd, 0, i, &broot, dofreemap);
 397                 }
 398         }
 399         if (VerboseOpt < 3)
 400                 show_bref(fd, 0, best_i, &best, dofreemap);
 401         close(fd);
 402
 403         return 0;
 404 }
 405
 406 static void
 407 show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref, int dofreemap)
 408 {
 409         hammer2_media_data_t media;
 410         hammer2_blockref_t *bscan;
 411         int bcount;
 412         int i;
 413         int didnl;
 414         int namelen;
 415         int obrace = 1;
 416         size_t bytes;
 417         const char *type_str;
 418         char *str = NULL;
 419
 420         switch(bref->type) {
 421         case HAMMER2_BREF_TYPE_EMPTY:
 422                 type_str = "empty";
 423                 break;
 424         case HAMMER2_BREF_TYPE_INODE:
 425                 type_str = "inode";
 426                 break;
 427         case HAMMER2_BREF_TYPE_INDIRECT:
 428                 type_str = "indblk";
 429                 break;
 430         case HAMMER2_BREF_TYPE_DATA:
 431                 type_str = "data";
 432                 break;
 433         case HAMMER2_BREF_TYPE_VOLUME:
 434                 type_str = "volume";
 435                 break;
 436         case HAMMER2_BREF_TYPE_FREEMAP:
 437                 type_str = "freemap";
 438                 break;
 439         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 440                 type_str = "fmapnode";
 441                 break;
 442         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 443                 type_str = "fbitmap";
 444                 break;
 445         default:
 446                 type_str = "unknown";
 447                 break;
 448         }
 449
 450         tabprintf(tab, "%s.%-3d %016jx %016jx/%-2d mir=%016jx mod=%016jx ",
 451                type_str, bi, (intmax_t)bref->data_off,
 452                (intmax_t)bref->key, (intmax_t)bref->keybits,
 453                (intmax_t)bref->mirror_tid, (intmax_t)bref->modify_tid);
 454         tab += SHOW_TAB;
 455
 456         bytes = (size_t)1 << (bref->data_off & HAMMER2_OFF_MASK_RADIX);
 457
 458         {
 459                 hammer2_off_t io_off;
 460                 hammer2_off_t io_base;
 461                 size_t io_bytes;
 462                 size_t boff;
 463
 464                 io_off = bref->data_off & ~HAMMER2_OFF_MASK_RADIX;
 465                 io_base = io_off & ~(hammer2_off_t)(HAMMER2_MINIOSIZE - 1);
 466                 io_bytes = bytes;
 467                 boff = io_off - io_base;
 468
 469                 io_bytes = HAMMER2_MINIOSIZE;
 470                 while (io_bytes + boff < bytes)
 471                         io_bytes <<= 1;
 472
 473                 if (io_bytes > sizeof(media)) {
 474                         printf("(bad block size %zd)\n", bytes);
 475                         return;
 476                 }
 477                 if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
 478                         lseek(fd, io_base, 0);
 479                         if (read(fd, &media, io_bytes) != (ssize_t)io_bytes) {
 480                                 printf("(media read failed)\n");
 481                                 return;
 482                         }
 483                         if (boff)
 484                                 bcopy((char *)&media + boff, &media, bytes);
 485                 }
 486         }
 487
 488         bscan = NULL;
 489         bcount = 0;
 490         didnl = 1;
 491         namelen = 0;
 492
 493         switch(bref->type) {
 494         case HAMMER2_BREF_TYPE_EMPTY:
 495                 obrace = 0;
 496                 break;
 497         case HAMMER2_BREF_TYPE_INODE:
 498                 printf("{\n");
 499                 if (media.ipdata.op_flags & HAMMER2_OPFLAG_DIRECTDATA) {
 500                         /* no blockrefs */
 501                 } else {
 502                         bscan = &media.ipdata.u.blockset.blockref[0];
 503                         bcount = HAMMER2_SET_COUNT;
 504                 }
 505                 namelen = media.ipdata.name_len;
 506                 if (namelen > HAMMER2_INODE_MAXNAME)
 507                         namelen = 0;
 508                 tabprintf(tab, "filename \"%*.*s\"\n",
 509                           namelen, namelen, media.ipdata.filename);
 510                 tabprintf(tab, "version  %d\n", media.ipdata.version);
 511                 tabprintf(tab, "uflags   0x%08x\n",
 512                           media.ipdata.uflags);
 513                 if (media.ipdata.rmajor || media.ipdata.rminor) {
 514                         tabprintf(tab, "rmajor   %d\n",
 515                                   media.ipdata.rmajor);
 516                         tabprintf(tab, "rminor   %d\n",
 517                                   media.ipdata.rminor);
 518                 }
 519                 tabprintf(tab, "ctime    %s\n",
 520                           hammer2_time64_to_str(media.ipdata.ctime, &str));
 521                 tabprintf(tab, "mtime    %s\n",
 522                           hammer2_time64_to_str(media.ipdata.mtime, &str));
 523                 tabprintf(tab, "atime    %s\n",
 524                           hammer2_time64_to_str(media.ipdata.atime, &str));
 525                 tabprintf(tab, "btime    %s\n",
 526                           hammer2_time64_to_str(media.ipdata.btime, &str));
 527                 tabprintf(tab, "uid      %s\n",
 528                           hammer2_uuid_to_str(&media.ipdata.uid, &str));
 529                 tabprintf(tab, "gid      %s\n",
 530                           hammer2_uuid_to_str(&media.ipdata.gid, &str));
 531                 if (media.ipdata.type == HAMMER2_OBJTYPE_HARDLINK)
 532                         tabprintf(tab, "type     %s (%s)\n",
 533                               hammer2_iptype_to_str(media.ipdata.type),
 534                               hammer2_iptype_to_str(media.ipdata.target_type));
 535                 else
 536                         tabprintf(tab, "type     %s\n",
 537                                   hammer2_iptype_to_str(media.ipdata.type));
 538                 tabprintf(tab, "opflgs   0x%02x\n",
 539                           media.ipdata.op_flags);
 540                 tabprintf(tab, "capflgs  0x%04x\n",
 541                           media.ipdata.cap_flags);
 542                 tabprintf(tab, "mode     %-7o\n",
 543                           media.ipdata.mode);
 544                 tabprintf(tab, "inum     0x%016jx\n",
 545                           media.ipdata.inum);
 546                 tabprintf(tab, "size     %ju\n",
 547                           (uintmax_t)media.ipdata.size);
 548                 tabprintf(tab, "nlinks   %ju\n",
 549                           (uintmax_t)media.ipdata.nlinks);
 550                 tabprintf(tab, "iparent  0x%016jx\n",
 551                           (uintmax_t)media.ipdata.iparent);
 552                 tabprintf(tab, "name_key 0x%016jx\n",
 553                           (uintmax_t)media.ipdata.name_key);
 554                 tabprintf(tab, "name_len %u\n",
 555                           media.ipdata.name_len);
 556                 tabprintf(tab, "ncopies  %u\n",
 557                           media.ipdata.ncopies);
 558                 tabprintf(tab, "compalg  %u\n",
 559                           media.ipdata.comp_algo);
 560                 if (media.ipdata.op_flags & HAMMER2_OPFLAG_PFSROOT) {
 561                         tabprintf(tab, "pfs_type %u (%s)\n",
 562                                   media.ipdata.pfs_type,
 563                                   hammer2_pfstype_to_str(media.ipdata.pfs_type));
 564                         tabprintf(tab, "pfs_inum 0x%016jx\n",
 565                                   (uintmax_t)media.ipdata.pfs_inum);
 566                         tabprintf(tab, "pfs_clid %s\n",
 567                                   hammer2_uuid_to_str(&media.ipdata.pfs_clid,
 568                                                       &str));
 569                         tabprintf(tab, "pfs_fsid %s\n",
 570                                   hammer2_uuid_to_str(&media.ipdata.pfs_fsid,
 571                                                       &str));
 572                 }
 573                 tabprintf(tab, "data_quota  %ju\n",
 574                           (uintmax_t)media.ipdata.data_quota);
 575                 tabprintf(tab, "data_count  %ju\n",
 576                           (uintmax_t)media.ipdata.data_count);
 577                 tabprintf(tab, "inode_quota %ju\n",
 578                           (uintmax_t)media.ipdata.inode_quota);
 579                 tabprintf(tab, "inode_count %ju\n",
 580                           (uintmax_t)media.ipdata.inode_count);
 581                 tabprintf(tab, "attr_tid    0x%016jx\n",
 582                           (uintmax_t)media.ipdata.attr_tid);
 583                 if (media.ipdata.type == HAMMER2_OBJTYPE_DIRECTORY) {
 584                         tabprintf(tab, "dirent_tid  %016jx\n",
 585                                   (uintmax_t)media.ipdata.dirent_tid);
 586                 }
 587                 break;
 588         case HAMMER2_BREF_TYPE_INDIRECT:
 589                 bscan = &media.npdata[0];
 590                 bcount = bytes / sizeof(hammer2_blockref_t);
 591                 didnl = 1;
 592                 printf("{\n");
 593                 break;
 594         case HAMMER2_BREF_TYPE_DATA:
 595                 if (VerboseOpt >= 2) {
 596                         printf("{\n");
 597                 } else {
 598                         printf("\n");
 599                         obrace = 0;
 600                 }
 601                 break;
 602         case HAMMER2_BREF_TYPE_VOLUME:
 603                 printf("mirror_tid=%016jx freemap_tid=%016jx ",
 604                         media.voldata.mirror_tid,
 605                         media.voldata.freemap_tid);
 606                 if (dofreemap) {
 607                         bscan = &media.voldata.freemap_blockset.blockref[0];
 608                         bcount = HAMMER2_SET_COUNT;
 609                 } else {
 610                         bscan = &media.voldata.sroot_blockset.blockref[0];
 611                         bcount = HAMMER2_SET_COUNT;
 612                 }
 613                 printf("{\n");
 614                 break;
 615         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 616                 printf("{\n");
 617                 for (i = 0; i < HAMMER2_FREEMAP_COUNT; ++i) {
 618                         if (media.bmdata[i].class == 0 &&
 619                             media.bmdata[i].avail == 0) {
 620                                 continue;
 621                         }
 622                         tabprintf(tab + 4, "%04d.%04x (avail=%5d) "
 623                                   "%08x %08x %08x %08x %08x %08x %08x %08x\n",
 624                                   i, media.bmdata[i].class,
 625                                   media.bmdata[i].avail,
 626                                   media.bmdata[i].bitmap[0],
 627                                   media.bmdata[i].bitmap[1],
 628                                   media.bmdata[i].bitmap[2],
 629                                   media.bmdata[i].bitmap[3],
 630                                   media.bmdata[i].bitmap[4],
 631                                   media.bmdata[i].bitmap[5],
 632                                   media.bmdata[i].bitmap[6],
 633                                   media.bmdata[i].bitmap[7]);
 634                 }
 635                 tabprintf(tab, "}\n");
 636                 break;
 637         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 638                 printf("{\n");
 639                 bscan = &media.npdata[0];
 640                 bcount = bytes / sizeof(hammer2_blockref_t);
 641                 break;
 642         default:
 643                 printf("\n");
 644                 obrace = 0;
 645                 break;
 646         }
 647         if (str)
 648                 free(str);
 649         for (i = 0; i < bcount; ++i) {
 650                 if (bscan[i].type != HAMMER2_BREF_TYPE_EMPTY) {
 651                         if (didnl == 0) {
 652                                 printf("\n");
 653                                 didnl = 1;
 654                         }
 655                         show_bref(fd, tab, i, &bscan[i], dofreemap);
 656                 }
 657         }
 658         tab -= SHOW_TAB;
 659         if (obrace) {
 660                 if (bref->type == HAMMER2_BREF_TYPE_INODE)
 661                         tabprintf(tab, "} (%s.%d, \"%*.*s\")\n",
 662                                   type_str, bi,
 663                                   namelen, namelen, media.ipdata.filename);
 664                 else
 665                         tabprintf(tab, "} (%s.%d)\n", type_str,bi);
 666         }
 667 }
 668
 669 int
 670 cmd_hash(int ac, const char **av)
 671 {
 672         int i;
 673
 674         for (i = 0; i < ac; ++i) {
 675                 printf("%016jx %s\n", dirhash(av[i], strlen(av[i])), av[i]);
 676         }
 677         return(0);
 678 }
 679
 680 int
 681 cmd_chaindump(const char *path)
 682 {
 683         int dummy = 0;
 684         int fd;
 685
 686         fd = open(path, O_RDONLY);
 687         if (fd >= 0) {
 688                 ioctl(fd, HAMMER2IOC_DEBUG_DUMP, &dummy);
 689                 close(fd);
 690         } else {
 691                 fprintf(stderr, "unable to open %s\n", path);
 692         }
 693         return 0;
 694 }
 695
 696
 697 static
 698 void
 699 tabprintf(int tab, const char *ctl, ...)
 700 {
 701         va_list va;
 702
 703         printf("%*.*s", tab, tab, "");
 704         va_start(va, ctl);
 705         vprintf(ctl, va);
 706         va_end(va);
 707 }