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->node_handler = NULL;
  65         info->label = strdup("debug");
  66         pthread_create(&thread, NULL, dmsg_master_service, info);
  67         pthread_join(thread, NULL);
  68
  69         return 0;
  70 }
  71
  72 #if 0
  73 int
  74 cmd_shell(const char *hostname)
  75 {
  76         struct dmsg_iocom iocom;
  77         dmsg_msg_t *msg;
  78         int fd;
  79
  80         /*
  81          * Connect to the target
  82          */
  83         fd = dmsg_connect(hostname);
  84         if (fd < 0)
  85                 return 1;
  86
  87         /*
  88          * Initialize the session and transmit an empty DMSG_DBG_SHELL
  89          * to cause the remote end to generate a prompt.
  90          */
  91         dmsg_iocom_init(&iocom, fd, 0,
  92                         NULL,
  93                         shell_rcvmsg,
  94                         hammer2_shell_parse,
  95                         shell_ttymsg);
  96         fcntl(0, F_SETFL, O_NONBLOCK);
  97         printf("debug: connected\n");
  98
  99         msg = dmsg_msg_alloc(&iocom.state0, 0, DMSG_DBG_SHELL, NULL, NULL);
 100         dmsg_msg_write(msg);
 101         dmsg_iocom_core(&iocom);
 102         fprintf(stderr, "debug: disconnected\n");
 103         close(fd);
 104         return 0;
 105 }
 106 #endif
 107
 108 /*
 109  * Debug session front-end
 110  *
 111  * Callback from dmsg_iocom_core() when messages might be present
 112  * on the socket.
 113  */
 114 static
 115 void
 116 shell_msghandler(dmsg_msg_t *msg, int unmanaged)
 117 {
 118         dmsg_msg_t *nmsg;
 119
 120         switch(msg->tcmd) {
 121 #if 0
 122         case DMSG_LNK_ERROR:
 123         case DMSG_LNK_ERROR | DMSGF_REPLY:
 124                 /*
 125                  * One-way non-transactional LNK_ERROR messages typically
 126                  * indicate a connection failure.  Error code 0 is used by
 127                  * the debug shell to indicate no more results from last cmd.
 128                  */
 129                 if (msg->any.head.error) {
 130                         fprintf(stderr, "Stream failure: %s\n",
 131                                 dmsg_msg_str(msg));
 132                 } else {
 133                         write(1, "debug> ", 7);
 134                 }
 135                 break;
 136         case DMSG_LNK_ERROR | DMSGF_DELETE:
 137                 /* ignore termination of LNK_CONN */
 138                 break;
 139 #endif
 140         case DMSG_DBG_SHELL:
 141                 /*
 142                  * We send the commands, not accept them.
 143                  * (one-way message, not transactional)
 144                  */
 145                 if (unmanaged)
 146                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 147                 break;
 148         case DMSG_DBG_SHELL | DMSGF_REPLY:
 149                 /*
 150                  * A reply from the remote is data we copy to stdout.
 151                  * (one-way message, not transactional)
 152                  */
 153                 if (msg->aux_size) {
 154                         msg->aux_data[msg->aux_size - 1] = 0;
 155                         write(1, msg->aux_data, strlen(msg->aux_data));
 156                 }
 157                 break;
 158 #if 1
 159         case DMSG_LNK_CONN | DMSGF_CREATE:
 160                 fprintf(stderr, "Debug Shell received LNK_CONN\n");
 161                 nmsg = dmsg_msg_alloc(&msg->state->iocom->state0, 0,
 162                                       DMSG_DBG_SHELL,
 163                                       NULL, NULL);
 164                 dmsg_msg_write(nmsg);
 165                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 166                 break;
 167         case DMSG_LNK_CONN | DMSGF_DELETE:
 168                 break;
 169 #endif
 170         default:
 171                 /*
 172                  * Ignore any unknown messages, Terminate any unknown
 173                  * transactions with an error.
 174                  */
 175                 fprintf(stderr, "Unknown message: %s\n", dmsg_msg_str(msg));
 176                 if (unmanaged) {
 177                         if (msg->any.head.cmd & DMSGF_CREATE)
 178                                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 179                         if (msg->any.head.cmd & DMSGF_DELETE)
 180                                 dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 181                 }
 182                 break;
 183         }
 184 }
 185
 186 /*
 187  * Debug session front-end
 188  */
 189 static
 190 void
 191 shell_ttymsg(dmsg_iocom_t *iocom)
 192 {
 193         dmsg_state_t *pstate;
 194         dmsg_msg_t *msg;
 195         char buf[256];
 196         char *cmd;
 197         size_t len;
 198
 199         if (fgets(buf, sizeof(buf), stdin) != NULL) {
 200                 if (buf[0] == '@') {
 201                         pstate = dmsg_findspan(strtok(buf + 1, " \t\n"));
 202                         cmd = strtok(NULL, "\n");
 203                 } else {
 204                         pstate = &iocom->state0;
 205                         cmd = strtok(buf, "\n");
 206                 }
 207                 if (cmd && pstate) {
 208                         len = strlen(cmd) + 1;
 209                         msg = dmsg_msg_alloc(pstate, len, DMSG_DBG_SHELL,
 210                                              NULL, NULL);
 211                         bcopy(cmd, msg->aux_data, len);
 212                         dmsg_msg_write(msg);
 213                 } else if (cmd) {
 214                         fprintf(stderr, "@msgid not found\n");
 215                 } else {
 216                         /*
 217                          * This should cause the remote end to generate
 218                          * a debug> prompt (and thus shows that there is
 219                          * connectivity).
 220                          */
 221                         msg = dmsg_msg_alloc(pstate, 0, DMSG_DBG_SHELL,
 222                                              NULL, NULL);
 223                         dmsg_msg_write(msg);
 224                 }
 225         } else if (feof(stdin)) {
 226                 /*
 227                  * Set EOF flag without setting any error code for normal
 228                  * EOF.
 229                  */
 230                 iocom->flags |= DMSG_IOCOMF_EOF;
 231         } else {
 232                 clearerr(stdin);
 233         }
 234 }
 235
 236 /*
 237  * Debug session back-end (on remote side)
 238  */
 239 static void shell_span(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 only
 251          */
 252         cmd = msg->any.head.cmd;
 253         if ((cmd & DMSGF_PROTOS) != DMSG_PROTO_DBG) {
 254                 if (unmanaged)
 255                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 256                 return;
 257         }
 258         if ((cmd & DMSGF_CMDSWMASK) != DMSG_DBG_SHELL) {
 259                 if (unmanaged)
 260                         dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
 261                 return;
 262         }
 263
 264         /*
 265          * Debug shell command
 266          */
 267         cmdbuf = msg->aux_data;
 268         cmdp = strsep(&cmdbuf, " \t");
 269
 270         if (cmdp == NULL || *cmdp == 0) {
 271                 ;
 272         } else if (strcmp(cmdp, "span") == 0) {
 273                 shell_span(msg, cmdbuf);
 274         } else if (strcmp(cmdp, "tree") == 0) {
 275                 dmsg_shell_tree(iocom, cmdbuf); /* dump spanning tree */
 276         } else if (strcmp(cmdp, "help") == 0 || strcmp(cmdp, "?") == 0) {
 277                 dmsg_printf(iocom, "help            Command help\n");
 278                 dmsg_printf(iocom, "span <host>     Span to target host\n");
 279                 dmsg_printf(iocom, "tree            Dump spanning tree\n");
 280                 dmsg_printf(iocom, "@span <cmd>     Issue via circuit\n");
 281         } else {
 282                 dmsg_printf(iocom, "Unrecognized command: %s\n", cmdp);
 283         }
 284         dmsg_printf(iocom, "debug> ");
 285 }
 286
 287 static void
 288 shell_span(dmsg_msg_t *msg, char *cmdbuf)
 289 {
 290         dmsg_iocom_t *iocom = msg->state->iocom;
 291         dmsg_master_service_info_t *info;
 292         const char *hostname = strsep(&cmdbuf, " \t");
 293         pthread_t thread;
 294         int fd;
 295
 296         /*
 297          * Connect to the target
 298          */
 299         if (hostname == NULL) {
 300                 fd = -1;
 301         } else {
 302                 fd = dmsg_connect(hostname);
 303         }
 304
 305         /*
 306          * Start master service
 307          */
 308         if (fd < 0) {
 309                 dmsg_printf(iocom, "Connection to %s failed\n", hostname);
 310         } else {
 311                 dmsg_printf(iocom, "Connected to %s\n", hostname);
 312
 313                 info = malloc(sizeof(*info));
 314                 bzero(info, sizeof(*info));
 315                 info->fd = fd;
 316                 info->detachme = 1;
 317                 info->usrmsg_callback = hammer2_shell_parse;
 318                 info->label = strdup("client");
 319
 320                 pthread_create(&thread, NULL, dmsg_master_service, info);
 321                 /*pthread_join(thread, &res);*/
 322         }
 323 }
 324
 325 /************************************************************************
 326  *                              DEBUGSPAN                               *
 327  ************************************************************************
 328  *
 329  * Connect to the target manually (not via the cluster list embedded in
 330  * a hammer2 filesystem) and initiate the SPAN protocol.
 331  */
 332 int
 333 cmd_debugspan(const char *hostname)
 334 {
 335         pthread_t thread;
 336         int fd;
 337         void *res;
 338
 339         /*
 340          * Connect to the target
 341          */
 342         fd = dmsg_connect(hostname);
 343         if (fd < 0)
 344                 return 1;
 345
 346         printf("debugspan: connected to %s, starting CONN/SPAN\n", hostname);
 347         pthread_create(&thread, NULL,
 348                        dmsg_master_service, (void *)(intptr_t)fd);
 349         pthread_join(thread, &res);
 350         return(0);
 351 }
 352
 353 /************************************************************************
 354  *                                  SHOW                                *
 355  ************************************************************************/
 356
 357 static void show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref,
 358                         int dofreemap);
 359 static void tabprintf(int tab, const char *ctl, ...);
 360
 361 int
 362 cmd_show(const char *devpath, int dofreemap)
 363 {
 364         hammer2_blockref_t broot;
 365         hammer2_blockref_t best;
 366         hammer2_media_data_t media;
 367         int fd;
 368         int i;
 369         int best_i;
 370
 371         fd = open(devpath, O_RDONLY);
 372         if (fd < 0) {
 373                 perror("open");
 374                 return 1;
 375         }
 376
 377         /*
 378          * Show the tree using the best volume header.
 379          * -vvv will show the tree for all four volume headers.
 380          */
 381         best_i = -1;
 382         bzero(&best, sizeof(best));
 383         for (i = 0; i < 4; ++i) {
 384                 bzero(&broot, sizeof(broot));
 385                 broot.type = HAMMER2_BREF_TYPE_VOLUME;
 386                 broot.data_off = (i * HAMMER2_ZONE_BYTES64) |
 387                                  HAMMER2_PBUFRADIX;
 388                 lseek(fd, broot.data_off & ~HAMMER2_OFF_MASK_RADIX, 0);
 389                 if (read(fd, &media, HAMMER2_PBUFSIZE) ==
 390                     (ssize_t)HAMMER2_PBUFSIZE) {
 391                         broot.mirror_tid = media.voldata.mirror_tid;
 392                         if (best_i < 0 || best.mirror_tid < broot.mirror_tid) {
 393                                 best_i = i;
 394                                 best = broot;
 395                         }
 396                         if (VerboseOpt >= 3)
 397                                 show_bref(fd, 0, i, &broot, dofreemap);
 398                 }
 399         }
 400         if (VerboseOpt < 3)
 401                 show_bref(fd, 0, best_i, &best, dofreemap);
 402         close(fd);
 403
 404         return 0;
 405 }
 406
 407 static void
 408 show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref, int dofreemap)
 409 {
 410         hammer2_media_data_t media;
 411         hammer2_blockref_t *bscan;
 412         int bcount;
 413         int i;
 414         int didnl;
 415         int namelen;
 416         int obrace = 1;
 417         size_t bytes;
 418         const char *type_str;
 419         char *str = NULL;
 420
 421         switch(bref->type) {
 422         case HAMMER2_BREF_TYPE_EMPTY:
 423                 type_str = "empty";
 424                 break;
 425         case HAMMER2_BREF_TYPE_INODE:
 426                 type_str = "inode";
 427                 break;
 428         case HAMMER2_BREF_TYPE_INDIRECT:
 429                 type_str = "indblk";
 430                 break;
 431         case HAMMER2_BREF_TYPE_DATA:
 432                 type_str = "data";
 433                 break;
 434         case HAMMER2_BREF_TYPE_VOLUME:
 435                 type_str = "volume";
 436                 break;
 437         case HAMMER2_BREF_TYPE_FREEMAP:
 438                 type_str = "freemap";
 439                 break;
 440         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 441                 type_str = "fmapnode";
 442                 break;
 443         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 444                 type_str = "fbitmap";
 445                 break;
 446         default:
 447                 type_str = "unknown";
 448                 break;
 449         }
 450
 451         tabprintf(tab, "%s.%-3d %016jx %016jx/%-2d mir=%016jx mod=%016jx ",
 452                type_str, bi, (intmax_t)bref->data_off,
 453                (intmax_t)bref->key, (intmax_t)bref->keybits,
 454                (intmax_t)bref->mirror_tid, (intmax_t)bref->modify_tid);
 455         tab += SHOW_TAB;
 456
 457         bytes = (size_t)1 << (bref->data_off & HAMMER2_OFF_MASK_RADIX);
 458
 459         {
 460                 hammer2_off_t io_off;
 461                 hammer2_off_t io_base;
 462                 size_t io_bytes;
 463                 size_t boff;
 464
 465                 io_off = bref->data_off & ~HAMMER2_OFF_MASK_RADIX;
 466                 io_base = io_off & ~(hammer2_off_t)(HAMMER2_MINIOSIZE - 1);
 467                 io_bytes = bytes;
 468                 boff = io_off - io_base;
 469
 470                 io_bytes = HAMMER2_MINIOSIZE;
 471                 while (io_bytes + boff < bytes)
 472                         io_bytes <<= 1;
 473
 474                 if (io_bytes > sizeof(media)) {
 475                         printf("(bad block size %zd)\n", bytes);
 476                         return;
 477                 }
 478                 if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
 479                         lseek(fd, io_base, 0);
 480                         if (read(fd, &media, io_bytes) != (ssize_t)io_bytes) {
 481                                 printf("(media read failed)\n");
 482                                 return;
 483                         }
 484                         if (boff)
 485                                 bcopy((char *)&media + boff, &media, bytes);
 486                 }
 487         }
 488
 489         bscan = NULL;
 490         bcount = 0;
 491         didnl = 1;
 492         namelen = 0;
 493
 494         switch(bref->type) {
 495         case HAMMER2_BREF_TYPE_EMPTY:
 496                 obrace = 0;
 497                 break;
 498         case HAMMER2_BREF_TYPE_INODE:
 499                 printf("{\n");
 500                 if (media.ipdata.op_flags & HAMMER2_OPFLAG_DIRECTDATA) {
 501                         /* no blockrefs */
 502                 } else {
 503                         bscan = &media.ipdata.u.blockset.blockref[0];
 504                         bcount = HAMMER2_SET_COUNT;
 505                 }
 506                 namelen = media.ipdata.name_len;
 507                 if (namelen > HAMMER2_INODE_MAXNAME)
 508                         namelen = 0;
 509                 tabprintf(tab, "filename \"%*.*s\"\n",
 510                           namelen, namelen, media.ipdata.filename);
 511                 tabprintf(tab, "version  %d\n", media.ipdata.version);
 512                 tabprintf(tab, "uflags   0x%08x\n",
 513                           media.ipdata.uflags);
 514                 if (media.ipdata.rmajor || media.ipdata.rminor) {
 515                         tabprintf(tab, "rmajor   %d\n",
 516                                   media.ipdata.rmajor);
 517                         tabprintf(tab, "rminor   %d\n",
 518                                   media.ipdata.rminor);
 519                 }
 520                 tabprintf(tab, "ctime    %s\n",
 521                           hammer2_time64_to_str(media.ipdata.ctime, &str));
 522                 tabprintf(tab, "mtime    %s\n",
 523                           hammer2_time64_to_str(media.ipdata.mtime, &str));
 524                 tabprintf(tab, "atime    %s\n",
 525                           hammer2_time64_to_str(media.ipdata.atime, &str));
 526                 tabprintf(tab, "btime    %s\n",
 527                           hammer2_time64_to_str(media.ipdata.btime, &str));
 528                 tabprintf(tab, "uid      %s\n",
 529                           hammer2_uuid_to_str(&media.ipdata.uid, &str));
 530                 tabprintf(tab, "gid      %s\n",
 531                           hammer2_uuid_to_str(&media.ipdata.gid, &str));
 532                 if (media.ipdata.type == HAMMER2_OBJTYPE_HARDLINK)
 533                         tabprintf(tab, "type     %s (%s)\n",
 534                               hammer2_iptype_to_str(media.ipdata.type),
 535                               hammer2_iptype_to_str(media.ipdata.target_type));
 536                 else
 537                         tabprintf(tab, "type     %s\n",
 538                                   hammer2_iptype_to_str(media.ipdata.type));
 539                 tabprintf(tab, "opflgs   0x%02x\n",
 540                           media.ipdata.op_flags);
 541                 tabprintf(tab, "capflgs  0x%04x\n",
 542                           media.ipdata.cap_flags);
 543                 tabprintf(tab, "mode     %-7o\n",
 544                           media.ipdata.mode);
 545                 tabprintf(tab, "inum     0x%016jx\n",
 546                           media.ipdata.inum);
 547                 tabprintf(tab, "size     %ju\n",
 548                           (uintmax_t)media.ipdata.size);
 549                 tabprintf(tab, "nlinks   %ju\n",
 550                           (uintmax_t)media.ipdata.nlinks);
 551                 tabprintf(tab, "iparent  0x%016jx\n",
 552                           (uintmax_t)media.ipdata.iparent);
 553                 tabprintf(tab, "name_key 0x%016jx\n",
 554                           (uintmax_t)media.ipdata.name_key);
 555                 tabprintf(tab, "name_len %u\n",
 556                           media.ipdata.name_len);
 557                 tabprintf(tab, "ncopies  %u\n",
 558                           media.ipdata.ncopies);
 559                 tabprintf(tab, "compalg  %u\n",
 560                           media.ipdata.comp_algo);
 561                 if (media.ipdata.op_flags & HAMMER2_OPFLAG_PFSROOT) {
 562                         tabprintf(tab, "pfs_type %u (%s)\n",
 563                                   media.ipdata.pfs_type,
 564                                   hammer2_pfstype_to_str(media.ipdata.pfs_type));
 565                         tabprintf(tab, "pfs_inum 0x%016jx\n",
 566                                   (uintmax_t)media.ipdata.pfs_inum);
 567                         tabprintf(tab, "pfs_clid %s\n",
 568                                   hammer2_uuid_to_str(&media.ipdata.pfs_clid,
 569                                                       &str));
 570                         tabprintf(tab, "pfs_fsid %s\n",
 571                                   hammer2_uuid_to_str(&media.ipdata.pfs_fsid,
 572                                                       &str));
 573                 }
 574                 tabprintf(tab, "data_quota  %ju\n",
 575                           (uintmax_t)media.ipdata.data_quota);
 576                 tabprintf(tab, "data_count  %ju\n",
 577                           (uintmax_t)media.ipdata.data_count);
 578                 tabprintf(tab, "inode_quota %ju\n",
 579                           (uintmax_t)media.ipdata.inode_quota);
 580                 tabprintf(tab, "inode_count %ju\n",
 581                           (uintmax_t)media.ipdata.inode_count);
 582                 tabprintf(tab, "attr_tid    0x%016jx\n",
 583                           (uintmax_t)media.ipdata.attr_tid);
 584                 if (media.ipdata.type == HAMMER2_OBJTYPE_DIRECTORY) {
 585                         tabprintf(tab, "dirent_tid  %016jx\n",
 586                                   (uintmax_t)media.ipdata.dirent_tid);
 587                 }
 588                 break;
 589         case HAMMER2_BREF_TYPE_INDIRECT:
 590                 bscan = &media.npdata[0];
 591                 bcount = bytes / sizeof(hammer2_blockref_t);
 592                 didnl = 1;
 593                 printf("{\n");
 594                 break;
 595         case HAMMER2_BREF_TYPE_DATA:
 596                 if (VerboseOpt >= 2) {
 597                         printf("{\n");
 598                 } else {
 599                         printf("\n");
 600                         obrace = 0;
 601                 }
 602                 break;
 603         case HAMMER2_BREF_TYPE_VOLUME:
 604                 printf("mirror_tid=%016jx freemap_tid=%016jx ",
 605                         media.voldata.mirror_tid,
 606                         media.voldata.freemap_tid);
 607                 if (dofreemap) {
 608                         bscan = &media.voldata.freemap_blockset.blockref[0];
 609                         bcount = HAMMER2_SET_COUNT;
 610                 } else {
 611                         bscan = &media.voldata.sroot_blockset.blockref[0];
 612                         bcount = HAMMER2_SET_COUNT;
 613                 }
 614                 printf("{\n");
 615                 break;
 616         case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
 617                 printf("{\n");
 618                 for (i = 0; i < HAMMER2_FREEMAP_COUNT; ++i) {
 619                         if (media.bmdata[i].class == 0 &&
 620                             media.bmdata[i].avail == 0) {
 621                                 continue;
 622                         }
 623                         tabprintf(tab + 4, "%04d.%04x (avail=%5d) "
 624                                   "%08x %08x %08x %08x %08x %08x %08x %08x\n",
 625                                   i, media.bmdata[i].class,
 626                                   media.bmdata[i].avail,
 627                                   media.bmdata[i].bitmap[0],
 628                                   media.bmdata[i].bitmap[1],
 629                                   media.bmdata[i].bitmap[2],
 630                                   media.bmdata[i].bitmap[3],
 631                                   media.bmdata[i].bitmap[4],
 632                                   media.bmdata[i].bitmap[5],
 633                                   media.bmdata[i].bitmap[6],
 634                                   media.bmdata[i].bitmap[7]);
 635                 }
 636                 tabprintf(tab, "}\n");
 637                 break;
 638         case HAMMER2_BREF_TYPE_FREEMAP_NODE:
 639                 printf("{\n");
 640                 bscan = &media.npdata[0];
 641                 bcount = bytes / sizeof(hammer2_blockref_t);
 642                 break;
 643         default:
 644                 printf("\n");
 645                 obrace = 0;
 646                 break;
 647         }
 648         if (str)
 649                 free(str);
 650         for (i = 0; i < bcount; ++i) {
 651                 if (bscan[i].type != HAMMER2_BREF_TYPE_EMPTY) {
 652                         if (didnl == 0) {
 653                                 printf("\n");
 654                                 didnl = 1;
 655                         }
 656                         show_bref(fd, tab, i, &bscan[i], dofreemap);
 657                 }
 658         }
 659         tab -= SHOW_TAB;
 660         if (obrace) {
 661                 if (bref->type == HAMMER2_BREF_TYPE_INODE)
 662                         tabprintf(tab, "} (%s.%d, \"%*.*s\")\n",
 663                                   type_str, bi,
 664                                   namelen, namelen, media.ipdata.filename);
 665                 else
 666                         tabprintf(tab, "} (%s.%d)\n", type_str,bi);
 667         }
 668 }
 669
 670 int
 671 cmd_hash(int ac, const char **av)
 672 {
 673         int i;
 674
 675         for (i = 0; i < ac; ++i) {
 676                 printf("%016jx %s\n", dirhash(av[i], strlen(av[i])), av[i]);
 677         }
 678         return(0);
 679 }
 680
 681 int
 682 cmd_chaindump(const char *path)
 683 {
 684         int dummy = 0;
 685         int fd;
 686
 687         fd = open(path, O_RDONLY);
 688         if (fd >= 0) {
 689                 ioctl(fd, HAMMER2IOC_DEBUG_DUMP, &dummy);
 690                 close(fd);
 691         } else {
 692                 fprintf(stderr, "unable to open %s\n", path);
 693         }
 694         return 0;
 695 }
 696
 697
 698 static
 699 void
 700 tabprintf(int tab, const char *ctl, ...)
 701 {
 702         va_list va;
 703
 704         printf("%*.*s", tab, tab, "");
 705         va_start(va, ctl);
 706         vprintf(ctl, va);
 707         va_end(va);
 708 }