sbin/hammer/hammer.c

   1 /*
   2  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sbin/hammer/hammer.c,v 1.44 2008/11/13 02:04:27 dillon Exp $
  35  */
  36
  37 #include "hammer.h"
  38 #include <signal.h>
  39 #include <math.h>
  40
  41 static void hammer_parsedevs(const char *blkdevs);
  42 static void sigalrm(int signo);
  43 static void sigintr(int signo);
  44 static void usage(int exit_code);
  45
  46 int RecurseOpt;
  47 int VerboseOpt;
  48 int QuietOpt;
  49 int NoSyncOpt;
  50 int TwoWayPipeOpt;
  51 int TimeoutOpt;
  52 int DelayOpt = 5;
  53 int ForceYesOpt = 0;
  54 int RunningIoctl;
  55 int DidInterrupt;
  56 u_int64_t BandwidthOpt;
  57 const char *CyclePath;
  58 const char *LinkPath;
  59
  60 int
  61 main(int ac, char **av)
  62 {
  63         char *blkdevs = NULL;
  64         char *ptr;
  65         u_int32_t status;
  66         int ch;
  67         int cacheSize = 0;
  68
  69         while ((ch = getopt(ac, av, "b:c:dhf:i:qrs:t:v2yC:")) != -1) {
  70                 switch(ch) {
  71                 case '2':
  72                         TwoWayPipeOpt = 1;
  73                         break;
  74                 case 'y':
  75                         ForceYesOpt = 1;
  76                         break;
  77                 case 'b':
  78                         BandwidthOpt = strtoull(optarg, &ptr, 0);
  79                         switch(*ptr) {
  80                         case 'g':
  81                         case 'G':
  82                                 BandwidthOpt *= 1024;
  83                                 /* fall through */
  84                         case 'm':
  85                         case 'M':
  86                                 BandwidthOpt *= 1024;
  87                                 /* fall through */
  88                         case 'k':
  89                         case 'K':
  90                                 BandwidthOpt *= 1024;
  91                                 break;
  92                         case '\0':
  93                                 /* bytes per second if no suffix */
  94                                 break;
  95                         default:
  96                                 usage(1);
  97                         }
  98                         break;
  99                 case 'c':
 100                         CyclePath = optarg;
 101                         break;
 102                 case 'd':
 103                         ++DebugOpt;
 104                         break;
 105                 case 'h':
 106                         usage(0);
 107                         /* not reached */
 108                 case 'i':
 109                         DelayOpt = strtol(optarg, NULL, 0);
 110                         break;
 111                 case 'r':
 112                         RecurseOpt = 1;
 113                         break;
 114                 case 'f':
 115                         blkdevs = optarg;
 116                         break;
 117                 case 's':
 118                         LinkPath = optarg;
 119                         break;
 120                 case 't':
 121                         TimeoutOpt = strtol(optarg, NULL, 0);
 122                         break;
 123                 case 'v':
 124                         if (QuietOpt > 0)
 125                                 --QuietOpt;
 126                         else
 127                                 ++VerboseOpt;
 128                         break;
 129                 case 'q':
 130                         if (VerboseOpt > 0)
 131                                 --VerboseOpt;
 132                         else
 133                                 ++QuietOpt;
 134                         break;
 135                 case 'C':
 136                         cacheSize = strtol(optarg, &ptr, 0);
 137                         switch(*ptr) {
 138                         case 'm':
 139                         case 'M':
 140                                 cacheSize *= 1024;
 141                                 /* fall through */
 142                         case 'k':
 143                         case 'K':
 144                                 cacheSize *= 1024;
 145                                 ++ptr;
 146                                 break;
 147                         case '\0':
 148                         case ':':
 149                                 /* bytes if no suffix */
 150                                 break;
 151                         default:
 152                                 usage(1);
 153                         }
 154                         if (*ptr == ':') {
 155                                 UseReadAhead = strtol(ptr + 1, NULL, 0);
 156                                 UseReadBehind = -UseReadAhead;
 157                         }
 158                         if (cacheSize < 1024 * 1024)
 159                                 cacheSize = 1024 * 1024;
 160                         if (UseReadAhead < 0)
 161                                 usage(1);
 162                         if (UseReadAhead * HAMMER_BUFSIZE / cacheSize / 16) {
 163                                 UseReadAhead = cacheSize / 16 / HAMMER_BUFSIZE;
 164                                 UseReadBehind = -UseReadAhead;
 165                         }
 166                         hammer_cache_set(cacheSize);
 167                         break;
 168                 default:
 169                         usage(1);
 170                         /* not reached */
 171                 }
 172         }
 173         ac -= optind;
 174         av += optind;
 175         if (ac < 1) {
 176                 usage(1);
 177                 /* not reached */
 178         }
 179
 180         signal(SIGALRM, sigalrm);
 181         signal(SIGINT, sigintr);
 182
 183         if (strcmp(av[0], "synctid") == 0) {
 184                 hammer_cmd_synctid(av + 1, ac - 1);
 185                 exit(0);
 186         }
 187         if (strcmp(av[0], "namekey2") == 0) {
 188                 int64_t key;
 189                 int32_t crcx;
 190                 int len;
 191                 const char *aname = av[1];
 192
 193                 if (aname == NULL)
 194                         usage(1);
 195                 len = strlen(aname);
 196                 key = (u_int32_t)crc32(aname, len) & 0xFFFFFFFEU;
 197
 198                 switch(len) {
 199                 default:
 200                         crcx = crc32(aname + 3, len - 5);
 201                         crcx = crcx ^ (crcx >> 6) ^ (crcx >> 12);
 202                         key |= (int64_t)(crcx & 0x3F) << 42;
 203                         /* fall through */
 204                 case 5:
 205                 case 4:
 206                         /* fall through */
 207                 case 3:
 208                         key |= ((int64_t)(aname[2] & 0x1F) << 48);
 209                         /* fall through */
 210                 case 2:
 211                         key |= ((int64_t)(aname[1] & 0x1F) << 53) |
 212                                ((int64_t)(aname[len-2] & 0x1F) << 37);
 213                         /* fall through */
 214                 case 1:
 215                         key |= ((int64_t)(aname[0] & 0x1F) << 58) |
 216                                ((int64_t)(aname[len-1] & 0x1F) << 32);
 217                         /* fall through */
 218                 case 0:
 219                         break;
 220                 }
 221                 if (key == 0)
 222                         key |= 0x100000000LL;
 223                 printf("0x%016llx\n", key);
 224                 exit(0);
 225         }
 226         if (strcmp(av[0], "namekey1") == 0) {
 227                 int64_t key;
 228
 229                 if (av[1] == NULL)
 230                         usage(1);
 231                 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
 232                 if (key == 0)
 233                         key |= 0x100000000LL;
 234                 printf("0x%016llx\n", key);
 235                 exit(0);
 236         }
 237         if (strcmp(av[0], "namekey32") == 0) {
 238                 int32_t key;
 239
 240                 if (av[1] == NULL)
 241                         usage(1);
 242                 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
 243                 if (key == 0)
 244                         ++key;
 245                 printf("0x%08x\n", key);
 246                 exit(0);
 247         }
 248         if (strcmp(av[0], "pfs-status") == 0) {
 249                 hammer_cmd_pseudofs_status(av + 1, ac - 1);
 250                 exit(0);
 251         }
 252         if (strcmp(av[0], "pfs-master") == 0) {
 253                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
 254                 exit(0);
 255         }
 256         if (strcmp(av[0], "pfs-slave") == 0) {
 257                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
 258                 exit(0);
 259         }
 260         if (strcmp(av[0], "pfs-update") == 0) {
 261                 hammer_cmd_pseudofs_update(av + 1, ac - 1);
 262                 exit(0);
 263         }
 264         if (strcmp(av[0], "pfs-upgrade") == 0) {
 265                 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
 266                 exit(0);
 267         }
 268         if (strcmp(av[0], "pfs-downgrade") == 0) {
 269                 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
 270                 exit(0);
 271         }
 272         if (strcmp(av[0], "pfs-destroy") == 0) {
 273                 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
 274                 exit(0);
 275         }
 276         if (strcmp(av[0], "status") == 0) {
 277                 hammer_cmd_status(av + 1, ac - 1);
 278                 exit(0);
 279         }
 280         if (strcmp(av[0], "prune") == 0) {
 281                 hammer_cmd_softprune(av + 1, ac - 1, 0);
 282                 exit(0);
 283         }
 284         if (strcmp(av[0], "cleanup") == 0) {
 285                 hammer_cmd_cleanup(av + 1, ac - 1);
 286                 exit(0);
 287         }
 288         if (strcmp(av[0], "prune-everything") == 0) {
 289                 hammer_cmd_softprune(av + 1, ac - 1, 1);
 290                 exit(0);
 291         }
 292         if (strcmp(av[0], "snapshot") == 0) {
 293                 hammer_cmd_snapshot(av + 1, ac - 1);
 294                 exit(0);
 295         }
 296         if (strcmp(av[0], "bstats") == 0) {
 297                 hammer_cmd_bstats(av + 1, ac - 1);
 298                 exit(0);
 299         }
 300         if (strcmp(av[0], "iostats") == 0) {
 301                 hammer_cmd_iostats(av + 1, ac - 1);
 302                 exit(0);
 303         }
 304
 305         if (strncmp(av[0], "history", 7) == 0) {
 306                 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
 307                 exit(0);
 308         }
 309         if (strcmp(av[0], "rebalance") == 0) {
 310                 signal(SIGINT, sigalrm);
 311                 hammer_cmd_rebalance(av + 1, ac - 1);
 312                 exit(0);
 313         }
 314         if (strncmp(av[0], "reblock", 7) == 0) {
 315                 signal(SIGINT, sigalrm);
 316                 if (strcmp(av[0], "reblock") == 0)
 317                         hammer_cmd_reblock(av + 1, ac - 1, -1);
 318                 else if (strcmp(av[0], "reblock-btree") == 0)
 319                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
 320                 else if (strcmp(av[0], "reblock-inodes") == 0)
 321                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
 322                 else if (strcmp(av[0], "reblock-dirs") == 0)
 323                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
 324                 else if (strcmp(av[0], "reblock-data") == 0)
 325                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
 326                 else
 327                         usage(1);
 328                 exit(0);
 329         }
 330         if (strncmp(av[0], "mirror", 6) == 0) {
 331                 if (strcmp(av[0], "mirror-read") == 0)
 332                         hammer_cmd_mirror_read(av + 1, ac - 1, 0);
 333                 else if (strcmp(av[0], "mirror-read-stream") == 0)
 334                         hammer_cmd_mirror_read(av + 1, ac - 1, 1);
 335                 else if (strcmp(av[0], "mirror-write") == 0)
 336                         hammer_cmd_mirror_write(av + 1, ac - 1);
 337                 else if (strcmp(av[0], "mirror-copy") == 0)
 338                         hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
 339                 else if (strcmp(av[0], "mirror-stream") == 0)
 340                         hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
 341                 else if (strcmp(av[0], "mirror-dump") == 0)
 342                         hammer_cmd_mirror_dump();
 343                 else
 344                         usage(1);
 345                 exit(0);
 346         }
 347         if (strcmp(av[0], "version") == 0) {
 348                 hammer_cmd_get_version(av + 1, ac - 1);
 349                 exit(0);
 350         }
 351         if (strcmp(av[0], "version-upgrade") == 0) {
 352                 hammer_cmd_set_version(av + 1, ac - 1);
 353                 exit(0);
 354         }
 355
 356         uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
 357         if (status != uuid_s_ok) {
 358                 errx(1, "uuids file does not have the DragonFly "
 359                         "HAMMER filesystem type");
 360         }
 361
 362         if (strcmp(av[0], "show") == 0) {
 363                 hammer_off_t node_offset = (hammer_off_t)-1;
 364
 365                 hammer_parsedevs(blkdevs);
 366                 if (ac > 1)
 367                         sscanf(av[1], "%llx", &node_offset);
 368                 hammer_cmd_show(node_offset, 0, NULL, NULL);
 369                 exit(0);
 370         }
 371         if (strcmp(av[0], "blockmap") == 0) {
 372                 hammer_parsedevs(blkdevs);
 373                 hammer_cmd_blockmap();
 374                 exit(0);
 375         }
 376         usage(1);
 377         /* not reached */
 378         return(0);
 379 }
 380
 381 static
 382 void
 383 hammer_parsedevs(const char *blkdevs)
 384 {
 385         char *copy;
 386         char *volname;
 387
 388         if (blkdevs == NULL) {
 389                 errx(1, "A -f blkdev[:blkdev]* specification is required "
 390                         "for this command");
 391         }
 392
 393         copy = strdup(blkdevs);
 394         while ((volname = copy) != NULL) {
 395                 if ((copy = strchr(copy, ':')) != NULL)
 396                         *copy++ = 0;
 397                 setup_volume(-1, volname, 0, O_RDONLY);
 398         }
 399 }
 400
 401 static
 402 void
 403 sigalrm(int signo __unused)
 404 {
 405         /* do nothing (interrupts HAMMER ioctl) */
 406 }
 407
 408 static
 409 void
 410 sigintr(int signo __unused)
 411 {
 412         if (RunningIoctl == 0)
 413                 _exit(1);
 414         DidInterrupt = 1;
 415         /* do nothing (interrupts HAMMER ioctl) */
 416 }
 417
 418 static
 419 void
 420 usage(int exit_code)
 421 {
 422         fprintf(stderr,
 423                 "hammer -h\n"
 424                 "hammer [-2qrvy] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
 425                 "       [-i delay ] [-t seconds] command [argument ...]\n"
 426                 "hammer synctid <filesystem> [quick]\n"
 427                 "hammer -f blkdev[:blkdev]* blockmap\n"
 428                 "hammer bstats [interval]\n"
 429                 "hammer iostats [interval]\n"
 430                 "hammer history[@offset[,len]] <file> ...\n"
 431                 "hammer -f blkdev[:blkdev]* [-r] [-vvv] show [offset]\n"
 432 #if 0
 433                 "hammer -f blkdev[:blkdev]* blockmap\n"
 434 #endif
 435                 "hammer namekey1 <path>\n"
 436                 "hammer namekey2 <path>\n"
 437                 "hammer cleanup [<filesystem> ...]\n"
 438                 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
 439                 "hammer prune <softlink-dir>\n"
 440                 "hammer prune-everything <filesystem>\n"
 441                 "hammer rebalance <filesystem> [saturation_percentage]\n"
 442                 "hammer reblock[-btree/inodes/dirs/data] "
 443                         "<filesystem> [fill_percentage]\n"
 444                 "hammer pfs-status <dirpath> ...\n"
 445                 "hammer pfs-master <dirpath> [options]\n"
 446                 "hammer pfs-slave <dirpath> [options]\n"
 447                 "hammer pfs-update <dirpath> [options]\n"
 448                 "hammer pfs-upgrade <dirpath>\n"
 449                 "hammer pfs-downgrade <dirpath>\n"
 450                 "hammer pfs-destroy <dirpath>\n"
 451                 "hammer mirror-read <filesystem> [begin-tid]\n"
 452                 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
 453                 "hammer mirror-write <filesystem>\n"
 454                 "hammer mirror-dump\n"
 455                 "hammer mirror-copy [[user@]host:]<filesystem>"
 456                                   " [[user@]host:]<filesystem>\n"
 457                 "hammer mirror-stream [[user@]host:]<filesystem>"
 458                                     " [[user@]host:]<filesystem>\n"
 459                 "hammer version <filesystem>\n"
 460                 "hammer version-upgrade <filesystem> version# [force]\n"
 461         );
 462         exit(exit_code);
 463 }
 464