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_rcvmsg(dmsg_msg_t *msg);
  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         struct dmsg_iocom iocom;
  51         dmsg_msg_t *msg;
  52         int fd;
  53
  54         /*
  55          * Connect to the target
  56          */
  57         fd = dmsg_connect(hostname);
  58         if (fd < 0)
  59                 return 1;
  60
  61         /*
  62          * Run the session.  The remote end transmits our prompt.
  63          */
  64         dmsg_iocom_init(&iocom, fd, 0,
  65                         NULL,
  66                         shell_rcvmsg,
  67                         hammer2_shell_parse,
  68                         shell_ttymsg);
  69         fcntl(0, F_SETFL, O_NONBLOCK);
  70         printf("debug: connected\n");
  71
  72         msg = dmsg_msg_alloc(&iocom.circuit0, 0, DMSG_DBG_SHELL, NULL, NULL);
  73         dmsg_msg_write(msg);
  74         dmsg_iocom_core(&iocom);
  75         fprintf(stderr, "debug: disconnected\n");
  76         close(fd);
  77         return 0;
  78 }
  79
  80 /*
  81  * Callback from dmsg_iocom_core() when messages might be present
  82  * on the socket.
  83  */
  84 static
  85 void
  86 shell_rcvmsg(dmsg_msg_t *msg)
  87 {
  88         switch(msg->any.head.cmd & DMSGF_TRANSMASK) {
  89         case DMSG_LNK_ERROR:
  90         case DMSG_LNK_ERROR | DMSGF_REPLY:
  91                 /*
  92                  * One-way non-transactional LNK_ERROR messages typically
  93                  * indicate a connection failure.  Error code 0 is used by
  94                  * the debug shell to indicate no more results from last cmd.
  95                  */
  96                 if (msg->any.head.error) {
  97                         fprintf(stderr, "Stream failure: %s\n",
  98                                 dmsg_msg_str(msg));
  99                 } else {
 100                         write(1, "debug> ", 7);
 101                 }
 102                 break;
 103         case DMSG_LNK_ERROR | DMSGF_DELETE:
 104                 /* ignore termination of LNK_CONN */
 105                 break;
 106         case DMSG_DBG_SHELL:
 107                 /*
 108                  * We send the commands, not accept them.
 109                  * (one-way message, not transactional)
 110                  */
 111                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 112                 break;
 113         case DMSG_DBG_SHELL | DMSGF_REPLY:
 114                 /*
 115                  * A reply from the remote is data we copy to stdout.
 116                  * (one-way message, not transactional)
 117                  */
 118                 if (msg->aux_size) {
 119                         msg->aux_data[msg->aux_size - 1] = 0;
 120                         write(1, msg->aux_data, strlen(msg->aux_data));
 121                 }
 122                 break;
 123         case DMSG_LNK_CONN | DMSGF_CREATE:
 124                 fprintf(stderr, "Debug Shell is ignoring received LNK_CONN\n");
 125                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 126                 break;
 127         case DMSG_LNK_CONN | DMSGF_DELETE:
 128                 break;
 129         default:
 130                 /*
 131                  * Ignore any unknown messages, Terminate any unknown
 132                  * transactions with an error.
 133                  */
 134                 fprintf(stderr, "Unknown message: %s\n", dmsg_msg_str(msg));
 135                 if (msg->any.head.cmd & DMSGF_CREATE)
 136                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 137                 if (msg->any.head.cmd & DMSGF_DELETE)
 138                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 139                 break;
 140         }
 141 }
 142
 143 static
 144 void
 145 shell_ttymsg(dmsg_iocom_t *iocom)
 146 {
 147         dmsg_msg_t *msg;
 148         char buf[256];
 149         size_t len;
 150
 151         if (fgets(buf, sizeof(buf), stdin) != NULL) {
 152                 len = strlen(buf);
 153                 if (len && buf[len - 1] == '\n')
 154                         buf[--len] = 0;
 155                 ++len;
 156                 msg = dmsg_msg_alloc(&iocom->circuit0, len, DMSG_DBG_SHELL,
 157                                      NULL, NULL);
 158                 bcopy(buf, msg->aux_data, len);
 159                 dmsg_msg_write(msg);
 160         } else if (feof(stdin)) {
 161                 /*
 162                  * Set EOF flag without setting any error code for normal
 163                  * EOF.
 164                  */
 165                 iocom->flags |= DMSG_IOCOMF_EOF;
 166         } else {
 167                 clearerr(stdin);
 168         }
 169 }
 170
 171 static void shell_span(dmsg_circuit_t *circuit, char *cmdbuf);
 172 static void shell_circ(dmsg_circuit_t *circuit, char *cmdbuf);
 173
 174 void
 175 hammer2_shell_parse(dmsg_msg_t *msg, int unmanaged)
 176 {
 177         dmsg_circuit_t *circuit;
 178         char *cmdbuf;
 179         char *cmdp;
 180         uint32_t cmd;
 181
 182         /*
 183          * Filter on debug shell commands only
 184          */
 185         cmd = msg->any.head.cmd;
 186         if ((cmd & DMSGF_PROTOS) != DMSG_PROTO_DBG) {
 187                 if (unmanaged)
 188                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 189                 return;
 190         }
 191         if ((cmd & DMSGF_CMDSWMASK) != DMSG_DBG_SHELL) {
 192                 if (unmanaged)
 193                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 194                 return;
 195         }
 196
 197         /*
 198          * Debug shell command
 199          */
 200         circuit = msg->circuit;
 201         cmdbuf = msg->aux_data;
 202         cmdp = strsep(&cmdbuf, " \t");
 203
 204         if (cmdp == NULL || *cmdp == 0) {
 205                 ;
 206         } else if (strcmp(cmdp, "span") == 0) {
 207                 shell_span(circuit, cmdbuf);
 208         } else if (strcmp(cmdp, "circ") == 0) {
 209                 shell_circ(circuit, cmdbuf);
 210         } else if (strcmp(cmdp, "tree") == 0) {
 211                 dmsg_shell_tree(circuit, cmdbuf); /* dump spanning tree */
 212         } else if (strcmp(cmdp, "help") == 0 || strcmp(cmdp, "?") == 0) {
 213                 dmsg_circuit_printf(circuit, "help            Command help\n");
 214                 dmsg_circuit_printf(circuit, "span <host>     Span to target host\n");
 215                 dmsg_circuit_printf(circuit, "circ <msgid>    Create VC to msgid of rx SPAN\n");
 216                 dmsg_circuit_printf(circuit, "tree            Dump spanning tree\n");
 217         } else {
 218                 dmsg_circuit_printf(circuit, "Unrecognized command: %s\n", cmdp);
 219         }
 220 }
 221
 222 static void
 223 shell_span(dmsg_circuit_t *circuit, char *cmdbuf)
 224 {
 225         dmsg_master_service_info_t *info;
 226         const char *hostname = strsep(&cmdbuf, " \t");
 227         pthread_t thread;
 228         int fd;
 229
 230         /*
 231          * Connect to the target
 232          */
 233         if (hostname == NULL) {
 234                 fd = -1;
 235         } else {
 236                 fd = dmsg_connect(hostname);
 237         }
 238
 239         /*
 240          * Start master service
 241          */
 242         if (fd < 0) {
 243                 dmsg_circuit_printf(circuit,
 244                                     "Connection to %s failed\n",
 245                                     hostname);
 246         } else {
 247                 dmsg_circuit_printf(circuit, "Connected to %s\n", hostname);
 248
 249                 info = malloc(sizeof(*info));
 250                 bzero(info, sizeof(*info));
 251                 info->fd = fd;
 252                 info->detachme = 1;
 253                 info->usrmsg_callback = hammer2_shell_parse;
 254                 info->label = strdup("client");
 255
 256                 pthread_create(&thread, NULL, dmsg_master_service, info);
 257                 /*pthread_join(thread, &res);*/
 258         }
 259 }
 260
 261 static void shell_circ_reply(dmsg_msg_t *msg);
 262
 263 static void
 264 shell_circ(dmsg_circuit_t *circuit, char *cmdbuf)
 265 {
 266         uint64_t msgid = strtoull(cmdbuf, NULL, 16);
 267         dmsg_state_t *state;
 268         dmsg_msg_t *msg;
 269
 270         if (dmsg_debug_findspan(msgid, &state) == 0) {
 271                 dmsg_circuit_printf(circuit, "Found state %p\n", state);
 272
 273                 dmsg_circuit_printf(circuit, "Establishing CIRC\n");
 274                 msg = dmsg_msg_alloc(&state->iocom->circuit0, 0,
 275                                      DMSG_LNK_CIRC | DMSGF_CREATE,
 276                                      shell_circ_reply, circuit);
 277                 msg->any.lnk_circ.target = state->msgid;
 278                 dmsg_msg_write(msg);
 279         } else {
 280                 dmsg_circuit_printf(circuit,
 281                                     "Unable to locate %016jx\n",
 282                                     (intmax_t)msgid);
 283         }
 284 }
 285
 286 static void
 287 shell_circ_reply(dmsg_msg_t *msg)
 288 {
 289         dmsg_circuit_t *circ = msg->state->any.circ;
 290
 291         if (msg->any.head.cmd & DMSGF_DELETE) {
 292                 dmsg_circuit_printf(circ, "rxmsg DELETE error %d\n",
 293                                     msg->any.head.error);
 294                 msg->state->any.circ = NULL;
 295         } else {
 296                 dmsg_circuit_printf(circ, "rxmsg result error %d\n",
 297                                     msg->any.head.error);
 298         }
 299 }
 300
 301 /************************************************************************
 302  *                              DEBUGSPAN                               *
 303  ************************************************************************
 304  *
 305  * Connect to the target manually (not via the cluster list embedded in
 306  * a hammer2 filesystem) and initiate the SPAN protocol.
 307  */
 308 int
 309 cmd_debugspan(const char *hostname)
 310 {
 311         pthread_t thread;
 312         int fd;
 313         void *res;
 314
 315         /*
 316          * Connect to the target
 317          */
 318         fd = dmsg_connect(hostname);
 319         if (fd < 0)
 320                 return 1;
 321
 322         printf("debugspan: connected to %s, starting CONN/SPAN\n", hostname);
 323         pthread_create(&thread, NULL,
 324                        dmsg_master_service, (void *)(intptr_t)fd);
 325         pthread_join(thread, &res);
 326         return(0);
 327 }
 328
 329 /************************************************************************
 330  *                                  SHOW                                *
 331  ************************************************************************/
 332
 333 static void show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref,
 334                         int dofreemap);
 335 static void tabprintf(int tab, const char *ctl, ...);
 336
 337 int
 338 cmd_show(const char *devpath, int dofreemap)
 339 {
 340         hammer2_blockref_t broot;
 341         hammer2_blockref_t best;
 342         hammer2_media_data_t media;
 343         int fd;
 344         int i;
 345         int best_i;
 346
 347         fd = open(devpath, O_RDONLY);
 348         if (fd < 0) {
 349                 perror("open");
 350                 return 1;
 351         }
 352
 353         /*
 354          * Show the tree using the best volume header.
 355          * -vvv will show the tree for all four volume headers.
 356          */
 357         best_i = -1;
 358         bzero(&best, sizeof(best));
 359         for (i = 0; i < 4; ++i) {
 360                 bzero(&broot, sizeof(broot));
 361                 broot.type = HAMMER2_BREF_TYPE_VOLUME;
 362                 broot.data_off = (i * HAMMER2_ZONE_BYTES64) |
 363                                  HAMMER2_PBUFRADIX;
 364                 lseek(fd, broot.data_off & ~HAMMER2_OFF_MASK_RADIX, 0);
 365                 if (read(fd, &media, HAMMER2_PBUFSIZE) ==
 366                     (ssize_t)HAMMER2_PBUFSIZE) {
 367                         broot.mirror_tid = media.voldata.mirror_tid;
 368                         if (best_i < 0 || best.mirror_tid < broot.mirror_tid) {
 369                                 best_i = i;
 370                                 best = broot;
 371                         }
 372                         if (VerboseOpt >= 3)
 373                                 show_bref(fd, 0, i, &broot, dofreemap);
 374                 }
 375         }
 376         if (VerboseOpt < 3)
 377                 show_bref(fd, 0, best_i, &best, dofreemap);
 378         close(fd);
 379
 380         return 0;
 381 }
 382
 383 static void
 384 show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref, int dofreemap)
 385 {
 386         hammer2_media_data_t media;
 387         hammer2_blockref_t *bscan;
 388         int bcount;
 389         int i;
 390         int didnl;
 391         int namelen;
 392         int obrace = 1;
 393         size_t bytes;
 394         const char *type_str;
 395         char *str = NULL;
 396
 397         switch(bref->type) {
 398         case HAMMER2_BREF_TYPE_EMPTY:
 399                 type_str = "empty";
 400                 break;
 401         case HAMMER2_BREF_TYPE_INODE:
 402                 type_str = "inode";
 403                 break;
 404         case HAMMER2_BREF_TYPE_INDIRECT:
 405                 type_str = "indblk";
 406                 break;
 407         case HAMMER2_BREF_TYPE_DATA:
 408                 type_str = "data";
 409                 break;
 410         case HAMMER2_BREF_TYPE_VOLUME:
 411                 type_str = "volume";
 412                 break;
 413         case HAMMER2_BREF_TYPE_FREEMAP:
 414                 type_str = "freemap";
 415                 break;
 416         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 417                 type_str = "fmapnode";
 418                 break;
 419         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 420                 type_str = "fbitmap";
 421                 break;
 422         default:
 423                 type_str = "unknown";
 424                 break;
 425         }
 426
 427         tabprintf(tab, "%s.%-3d %016jx %016jx/%-2d mir=%016jx mod=%016jx ",
 428                type_str, bi, (intmax_t)bref->data_off,
 429                (intmax_t)bref->key, (intmax_t)bref->keybits,
 430                (intmax_t)bref->mirror_tid, (intmax_t)bref->modify_tid);
 431         tab += SHOW_TAB;
 432
 433         bytes = (size_t)1 << (bref->data_off & HAMMER2_OFF_MASK_RADIX);
 434
 435         {
 436                 hammer2_off_t io_off;
 437                 hammer2_off_t io_base;
 438                 size_t io_bytes;
 439                 size_t boff;
 440
 441                 io_off = bref->data_off & ~HAMMER2_OFF_MASK_RADIX;
 442                 io_base = io_off & ~(hammer2_off_t)(HAMMER2_MINIOSIZE - 1);
 443                 io_bytes = bytes;
 444                 boff = io_off - io_base;
 445
 446                 io_bytes = HAMMER2_MINIOSIZE;
 447                 while (io_bytes + boff < bytes)
 448                         io_bytes <<= 1;
 449
 450                 if (io_bytes > sizeof(media)) {
 451                         printf("(bad block size %zd)\n", bytes);
 452                         return;
 453                 }
 454                 if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
 455                         lseek(fd, io_base, 0);
 456                         if (read(fd, &media, io_bytes) != (ssize_t)io_bytes) {
 457                                 printf("(media read failed)\n");
 458                                 return;
 459                         }
 460                         if (boff)
 461                                 bcopy((char *)&media + boff, &media, bytes);
 462                 }
 463         }
 464
 465         bscan = NULL;
 466         bcount = 0;
 467         didnl = 1;
 468         namelen = 0;
 469
 470         switch(bref->type) {
 471         case HAMMER2_BREF_TYPE_EMPTY:
 472                 obrace = 0;
 473                 break;
 474         case HAMMER2_BREF_TYPE_INODE:
 475                 printf("{\n");
 476                 if (media.ipdata.op_flags & HAMMER2_OPFLAG_DIRECTDATA) {
 477                         /* no blockrefs */
 478                 } else {
 479                         bscan = &media.ipdata.u.blockset.blockref[0];
 480                         bcount = HAMMER2_SET_COUNT;
 481                 }
 482                 namelen = media.ipdata.name_len;
 483                 if (namelen > HAMMER2_INODE_MAXNAME)
 484                         namelen = 0;
 485                 tabprintf(tab, "filename \"%*.*s\"\n",
 486                           namelen, namelen, media.ipdata.filename);
 487                 tabprintf(tab, "version  %d\n", media.ipdata.version);
 488                 tabprintf(tab, "uflags   0x%08x\n",
 489                           media.ipdata.uflags);
 490                 if (media.ipdata.rmajor || media.ipdata.rminor) {
 491                         tabprintf(tab, "rmajor   %d\n",
 492                                   media.ipdata.rmajor);
 493                         tabprintf(tab, "rminor   %d\n",
 494                                   media.ipdata.rminor);
 495                 }
 496                 tabprintf(tab, "ctime    %s\n",
 497                           hammer2_time64_to_str(media.ipdata.ctime, &str));
 498                 tabprintf(tab, "mtime    %s\n",
 499                           hammer2_time64_to_str(media.ipdata.mtime, &str));
 500                 tabprintf(tab, "atime    %s\n",
 501                           hammer2_time64_to_str(media.ipdata.atime, &str));
 502                 tabprintf(tab, "btime    %s\n",
 503                           hammer2_time64_to_str(media.ipdata.btime, &str));
 504                 tabprintf(tab, "uid      %s\n",
 505                           hammer2_uuid_to_str(&media.ipdata.uid, &str));
 506                 tabprintf(tab, "gid      %s\n",
 507                           hammer2_uuid_to_str(&media.ipdata.gid, &str));
 508                 if (media.ipdata.type == HAMMER2_OBJTYPE_HARDLINK)
 509                         tabprintf(tab, "type     %s (%s)\n",
 510                               hammer2_iptype_to_str(media.ipdata.type),
 511                               hammer2_iptype_to_str(media.ipdata.target_type));
 512                 else
 513                         tabprintf(tab, "type     %s\n",
 514                                   hammer2_iptype_to_str(media.ipdata.type));
 515                 tabprintf(tab, "opflgs   0x%02x\n",
 516                           media.ipdata.op_flags);
 517                 tabprintf(tab, "capflgs  0x%04x\n",
 518                           media.ipdata.cap_flags);
 519                 tabprintf(tab, "mode     %-7o\n",
 520                           media.ipdata.mode);
 521                 tabprintf(tab, "inum     0x%016jx\n",
 522                           media.ipdata.inum);
 523                 tabprintf(tab, "size     %ju\n",
 524                           (uintmax_t)media.ipdata.size);
 525                 tabprintf(tab, "nlinks   %ju\n",
 526                           (uintmax_t)media.ipdata.nlinks);
 527                 tabprintf(tab, "iparent  0x%016jx\n",
 528                           (uintmax_t)media.ipdata.iparent);
 529                 tabprintf(tab, "name_key 0x%016jx\n",
 530                           (uintmax_t)media.ipdata.name_key);
 531                 tabprintf(tab, "name_len %u\n",
 532                           media.ipdata.name_len);
 533                 tabprintf(tab, "ncopies  %u\n",
 534                           media.ipdata.ncopies);
 535                 tabprintf(tab, "compalg  %u\n",
 536                           media.ipdata.comp_algo);
 537                 if (media.ipdata.op_flags & HAMMER2_OPFLAG_PFSROOT) {
 538                         tabprintf(tab, "pfs_type %u (%s)\n",
 539                                   media.ipdata.pfs_type,
 540                                   hammer2_pfstype_to_str(media.ipdata.pfs_type));
 541                         tabprintf(tab, "pfs_inum 0x%016jx\n",
 542                                   (uintmax_t)media.ipdata.pfs_inum);
 543                         tabprintf(tab, "pfs_clid %s\n",
 544                                   hammer2_uuid_to_str(&media.ipdata.pfs_clid,
 545                                                       &str));
 546                         tabprintf(tab, "pfs_fsid %s\n",
 547                                   hammer2_uuid_to_str(&media.ipdata.pfs_fsid,
 548                                                       &str));
 549                 }
 550                 tabprintf(tab, "data_quota  %ju\n",
 551                           (uintmax_t)media.ipdata.data_quota);
 552                 tabprintf(tab, "data_count  %ju\n",
 553                           (uintmax_t)media.ipdata.data_count);
 554                 tabprintf(tab, "inode_quota %ju\n",
 555                           (uintmax_t)media.ipdata.inode_quota);
 556                 tabprintf(tab, "inode_count %ju\n",
 557                           (uintmax_t)media.ipdata.inode_count);
 558                 tabprintf(tab, "attr_tid    0x%016jx\n",
 559                           (uintmax_t)media.ipdata.attr_tid);
 560                 if (media.ipdata.type == HAMMER2_OBJTYPE_DIRECTORY) {
 561                         tabprintf(tab, "dirent_tid  %016jx\n",
 562                                   (uintmax_t)media.ipdata.dirent_tid);
 563                 }
 564                 break;
 565         case HAMMER2_BREF_TYPE_INDIRECT:
 566                 bscan = &media.npdata[0];
 567                 bcount = bytes / sizeof(hammer2_blockref_t);
 568                 didnl = 1;
 569                 printf("{\n");
 570                 break;
 571         case HAMMER2_BREF_TYPE_DATA:
 572                 if (VerboseOpt >= 2) {
 573                         printf("{\n");
 574                 } else {
 575                         printf("\n");
 576                         obrace = 0;
 577                 }
 578                 break;
 579         case HAMMER2_BREF_TYPE_VOLUME:
 580                 printf("mirror_tid=%016jx freemap_tid=%016jx ",
 581                         media.voldata.mirror_tid,
 582                         media.voldata.freemap_tid);
 583                 if (dofreemap) {
 584                         bscan = &media.voldata.freemap_blockset.blockref[0];
 585                         bcount = HAMMER2_SET_COUNT;
 586                 } else {
 587                         bscan = &media.voldata.sroot_blockset.blockref[0];
 588                         bcount = HAMMER2_SET_COUNT;
 589                 }
 590                 printf("{\n");
 591                 break;
 592         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 593                 printf("{\n");
 594                 for (i = 0; i < HAMMER2_FREEMAP_COUNT; ++i) {
 595                         if (media.bmdata[i].class == 0 &&
 596                             media.bmdata[i].avail == 0) {
 597                                 continue;
 598                         }
 599                         tabprintf(tab + 4, "%04d.%04x (avail=%5d) "
 600                                   "%08x %08x %08x %08x %08x %08x %08x %08x\n",
 601                                   i, media.bmdata[i].class,
 602                                   media.bmdata[i].avail,
 603                                   media.bmdata[i].bitmap[0],
 604                                   media.bmdata[i].bitmap[1],
 605                                   media.bmdata[i].bitmap[2],
 606                                   media.bmdata[i].bitmap[3],
 607                                   media.bmdata[i].bitmap[4],
 608                                   media.bmdata[i].bitmap[5],
 609                                   media.bmdata[i].bitmap[6],
 610                                   media.bmdata[i].bitmap[7]);
 611                 }
 612                 tabprintf(tab, "}\n");
 613                 break;
 614         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 615                 printf("{\n");
 616                 bscan = &media.npdata[0];
 617                 bcount = bytes / sizeof(hammer2_blockref_t);
 618                 break;
 619         default:
 620                 printf("\n");
 621                 obrace = 0;
 622                 break;
 623         }
 624         if (str)
 625                 free(str);
 626         for (i = 0; i < bcount; ++i) {
 627                 if (bscan[i].type != HAMMER2_BREF_TYPE_EMPTY) {
 628                         if (didnl == 0) {
 629                                 printf("\n");
 630                                 didnl = 1;
 631                         }
 632                         show_bref(fd, tab, i, &bscan[i], dofreemap);
 633                 }
 634         }
 635         tab -= SHOW_TAB;
 636         if (obrace) {
 637                 if (bref->type == HAMMER2_BREF_TYPE_INODE)
 638                         tabprintf(tab, "} (%s.%d, \"%*.*s\")\n",
 639                                   type_str, bi,
 640                                   namelen, namelen, media.ipdata.filename);
 641                 else
 642                         tabprintf(tab, "} (%s.%d)\n", type_str,bi);
 643         }
 644 }
 645
 646 int
 647 cmd_hash(int ac, const char **av)
 648 {
 649         int i;
 650
 651         for (i = 0; i < ac; ++i) {
 652                 printf("%016jx %s\n", dirhash(av[i], strlen(av[i])), av[i]);
 653         }
 654         return(0);
 655 }
 656
 657 int
 658 cmd_chaindump(const char *path)
 659 {
 660         int dummy = 0;
 661         int fd;
 662
 663         fd = open(path, O_RDONLY);
 664         if (fd >= 0) {
 665                 ioctl(fd, HAMMER2IOC_DEBUG_DUMP, &dummy);
 666                 close(fd);
 667         } else {
 668                 fprintf(stderr, "unable to open %s\n", path);
 669         }
 670         return 0;
 671 }
 672
 673
 674 static
 675 void
 676 tabprintf(int tab, const char *ctl, ...)
 677 {
 678         va_list va;
 679
 680         printf("%*.*s", tab, tab, "");
 681         va_start(va, ctl);
 682         vprintf(ctl, va);
 683         va_end(va);
 684 }