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
  68         while ((ch = getopt(ac, av, "b:c:dhf:i:qrs:t:v2y")) != -1) {
  69                 switch(ch) {
  70                 case '2':
  71                         TwoWayPipeOpt = 1;
  72                         break;
  73                 case 'y':
  74                         ForceYesOpt = 1;
  75                         break;
  76                 case 'b':
  77                         BandwidthOpt = strtoull(optarg, &ptr, 0);
  78                         switch(*ptr) {
  79                         case 'g':
  80                         case 'G':
  81                                 BandwidthOpt *= 1024;
  82                                 /* fall through */
  83                         case 'm':
  84                         case 'M':
  85                                 BandwidthOpt *= 1024;
  86                                 /* fall through */
  87                         case 'k':
  88                         case 'K':
  89                                 BandwidthOpt *= 1024;
  90                                 break;
  91                         case '\0':
  92                                 /* bytes per second if no suffix */
  93                                 break;
  94                         default:
  95                                 usage(1);
  96                         }
  97                         break;
  98                 case 'c':
  99                         CyclePath = optarg;
 100                         break;
 101                 case 'd':
 102                         ++DebugOpt;
 103                         break;
 104                 case 'h':
 105                         usage(0);
 106                         /* not reached */
 107                 case 'i':
 108                         DelayOpt = strtol(optarg, NULL, 0);
 109                         break;
 110                 case 'r':
 111                         RecurseOpt = 1;
 112                         break;
 113                 case 'f':
 114                         blkdevs = optarg;
 115                         break;
 116                 case 's':
 117                         LinkPath = optarg;
 118                         break;
 119                 case 't':
 120                         TimeoutOpt = strtol(optarg, NULL, 0);
 121                         break;
 122                 case 'v':
 123                         if (QuietOpt > 0)
 124                                 --QuietOpt;
 125                         else
 126                                 ++VerboseOpt;
 127                         break;
 128                 case 'q':
 129                         if (VerboseOpt > 0)
 130                                 --VerboseOpt;
 131                         else
 132                                 ++QuietOpt;
 133                         break;
 134                 default:
 135                         usage(1);
 136                         /* not reached */
 137                 }
 138         }
 139         ac -= optind;
 140         av += optind;
 141         if (ac < 1) {
 142                 usage(1);
 143                 /* not reached */
 144         }
 145
 146         signal(SIGALRM, sigalrm);
 147         signal(SIGINT, sigintr);
 148
 149         if (strcmp(av[0], "synctid") == 0) {
 150                 hammer_cmd_synctid(av + 1, ac - 1);
 151                 exit(0);
 152         }
 153         if (strcmp(av[0], "namekey2") == 0) {
 154                 int64_t key;
 155                 int32_t crcx;
 156                 int len;
 157                 const char *aname = av[1];
 158
 159                 if (aname == NULL)
 160                         usage(1);
 161                 len = strlen(aname);
 162                 key = (u_int32_t)crc32(aname, len) & 0xFFFFFFFEU;
 163
 164                 switch(len) {
 165                 default:
 166                         crcx = crc32(aname + 3, len - 5);
 167                         crcx = crcx ^ (crcx >> 6) ^ (crcx >> 12);
 168                         key |= (int64_t)(crcx & 0x3F) << 42;
 169                         /* fall through */
 170                 case 5:
 171                 case 4:
 172                         /* fall through */
 173                 case 3:
 174                         key |= ((int64_t)(aname[2] & 0x1F) << 48);
 175                         /* fall through */
 176                 case 2:
 177                         key |= ((int64_t)(aname[1] & 0x1F) << 53) |
 178                                ((int64_t)(aname[len-2] & 0x1F) << 37);
 179                         /* fall through */
 180                 case 1:
 181                         key |= ((int64_t)(aname[0] & 0x1F) << 58) |
 182                                ((int64_t)(aname[len-1] & 0x1F) << 32);
 183                         /* fall through */
 184                 case 0:
 185                         break;
 186                 }
 187                 if (key == 0)
 188                         key |= 0x100000000LL;
 189                 printf("0x%016llx\n", key);
 190                 exit(0);
 191         }
 192         if (strcmp(av[0], "namekey1") == 0) {
 193                 int64_t key;
 194
 195                 if (av[1] == NULL)
 196                         usage(1);
 197                 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
 198                 if (key == 0)
 199                         key |= 0x100000000LL;
 200                 printf("0x%016llx\n", key);
 201                 exit(0);
 202         }
 203         if (strcmp(av[0], "namekey32") == 0) {
 204                 int32_t key;
 205
 206                 if (av[1] == NULL)
 207                         usage(1);
 208                 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
 209                 if (key == 0)
 210                         ++key;
 211                 printf("0x%08x\n", key);
 212                 exit(0);
 213         }
 214         if (strcmp(av[0], "pfs-status") == 0) {
 215                 hammer_cmd_pseudofs_status(av + 1, ac - 1);
 216                 exit(0);
 217         }
 218         if (strcmp(av[0], "pfs-master") == 0) {
 219                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
 220                 exit(0);
 221         }
 222         if (strcmp(av[0], "pfs-slave") == 0) {
 223                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
 224                 exit(0);
 225         }
 226         if (strcmp(av[0], "pfs-update") == 0) {
 227                 hammer_cmd_pseudofs_update(av + 1, ac - 1);
 228                 exit(0);
 229         }
 230         if (strcmp(av[0], "pfs-upgrade") == 0) {
 231                 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
 232                 exit(0);
 233         }
 234         if (strcmp(av[0], "pfs-downgrade") == 0) {
 235                 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
 236                 exit(0);
 237         }
 238         if (strcmp(av[0], "pfs-destroy") == 0) {
 239                 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
 240                 exit(0);
 241         }
 242         if (strcmp(av[0], "status") == 0) {
 243                 hammer_cmd_status(av + 1, ac - 1);
 244                 exit(0);
 245         }
 246         if (strcmp(av[0], "prune") == 0) {
 247                 hammer_cmd_softprune(av + 1, ac - 1, 0);
 248                 exit(0);
 249         }
 250         if (strcmp(av[0], "cleanup") == 0) {
 251                 hammer_cmd_cleanup(av + 1, ac - 1);
 252                 exit(0);
 253         }
 254         if (strcmp(av[0], "prune-everything") == 0) {
 255                 hammer_cmd_softprune(av + 1, ac - 1, 1);
 256                 exit(0);
 257         }
 258         if (strcmp(av[0], "snapshot") == 0) {
 259                 hammer_cmd_snapshot(av + 1, ac - 1);
 260                 exit(0);
 261         }
 262         if (strcmp(av[0], "bstats") == 0) {
 263                 hammer_cmd_bstats(av + 1, ac - 1);
 264                 exit(0);
 265         }
 266         if (strcmp(av[0], "iostats") == 0) {
 267                 hammer_cmd_iostats(av + 1, ac - 1);
 268                 exit(0);
 269         }
 270
 271         if (strncmp(av[0], "history", 7) == 0) {
 272                 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
 273                 exit(0);
 274         }
 275         if (strcmp(av[0], "rebalance") == 0) {
 276                 signal(SIGINT, sigalrm);
 277                 hammer_cmd_rebalance(av + 1, ac - 1);
 278                 exit(0);
 279         }
 280         if (strncmp(av[0], "reblock", 7) == 0) {
 281                 signal(SIGINT, sigalrm);
 282                 if (strcmp(av[0], "reblock") == 0)
 283                         hammer_cmd_reblock(av + 1, ac - 1, -1);
 284                 else if (strcmp(av[0], "reblock-btree") == 0)
 285                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
 286                 else if (strcmp(av[0], "reblock-inodes") == 0)
 287                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
 288                 else if (strcmp(av[0], "reblock-dirs") == 0)
 289                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
 290                 else if (strcmp(av[0], "reblock-data") == 0)
 291                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
 292                 else
 293                         usage(1);
 294                 exit(0);
 295         }
 296         if (strncmp(av[0], "mirror", 6) == 0) {
 297                 if (strcmp(av[0], "mirror-read") == 0)
 298                         hammer_cmd_mirror_read(av + 1, ac - 1, 0);
 299                 else if (strcmp(av[0], "mirror-read-stream") == 0)
 300                         hammer_cmd_mirror_read(av + 1, ac - 1, 1);
 301                 else if (strcmp(av[0], "mirror-write") == 0)
 302                         hammer_cmd_mirror_write(av + 1, ac - 1);
 303                 else if (strcmp(av[0], "mirror-copy") == 0)
 304                         hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
 305                 else if (strcmp(av[0], "mirror-stream") == 0)
 306                         hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
 307                 else if (strcmp(av[0], "mirror-dump") == 0)
 308                         hammer_cmd_mirror_dump();
 309                 else
 310                         usage(1);
 311                 exit(0);
 312         }
 313         if (strcmp(av[0], "version") == 0) {
 314                 hammer_cmd_get_version(av + 1, ac - 1);
 315                 exit(0);
 316         }
 317         if (strcmp(av[0], "version-upgrade") == 0) {
 318                 hammer_cmd_set_version(av + 1, ac - 1);
 319                 exit(0);
 320         }
 321
 322         uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
 323         if (status != uuid_s_ok) {
 324                 errx(1, "uuids file does not have the DragonFly "
 325                         "HAMMER filesystem type");
 326         }
 327
 328         if (strcmp(av[0], "show") == 0) {
 329                 hammer_off_t node_offset = (hammer_off_t)-1;
 330
 331                 hammer_parsedevs(blkdevs);
 332                 if (ac > 1)
 333                         sscanf(av[1], "%llx", &node_offset);
 334                 hammer_cmd_show(node_offset, 0, NULL, NULL);
 335                 exit(0);
 336         }
 337         if (strcmp(av[0], "blockmap") == 0) {
 338                 hammer_parsedevs(blkdevs);
 339                 hammer_cmd_blockmap();
 340                 exit(0);
 341         }
 342         usage(1);
 343         /* not reached */
 344         return(0);
 345 }
 346
 347 static
 348 void
 349 hammer_parsedevs(const char *blkdevs)
 350 {
 351         char *copy;
 352         char *volname;
 353
 354         if (blkdevs == NULL) {
 355                 errx(1, "A -f blkdev[:blkdev]* specification is required "
 356                         "for this command");
 357         }
 358
 359         copy = strdup(blkdevs);
 360         while ((volname = copy) != NULL) {
 361                 if ((copy = strchr(copy, ':')) != NULL)
 362                         *copy++ = 0;
 363                 setup_volume(-1, volname, 0, O_RDONLY);
 364         }
 365 }
 366
 367 static
 368 void
 369 sigalrm(int signo __unused)
 370 {
 371         /* do nothing (interrupts HAMMER ioctl) */
 372 }
 373
 374 static
 375 void
 376 sigintr(int signo __unused)
 377 {
 378         if (RunningIoctl == 0)
 379                 _exit(1);
 380         DidInterrupt = 1;
 381         /* do nothing (interrupts HAMMER ioctl) */
 382 }
 383
 384 static
 385 void
 386 usage(int exit_code)
 387 {
 388         fprintf(stderr,
 389                 "hammer -h\n"
 390                 "hammer [-2qrvy] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
 391                 "       [-i delay ] [-t seconds] command [argument ...]\n"
 392                 "hammer synctid <filesystem> [quick]\n"
 393                 "hammer -f blkdev[:blkdev]* blockmap\n"
 394                 "hammer bstats [interval]\n"
 395                 "hammer iostats [interval]\n"
 396                 "hammer history[@offset[,len]] <file> ...\n"
 397                 "hammer -f blkdev[:blkdev]* [-r] [-vvv] show [offset]\n"
 398 #if 0
 399                 "hammer -f blkdev[:blkdev]* blockmap\n"
 400 #endif
 401                 "hammer namekey1 <path>\n"
 402                 "hammer namekey2 <path>\n"
 403                 "hammer cleanup [<filesystem> ...]\n"
 404                 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
 405                 "hammer prune <softlink-dir>\n"
 406                 "hammer prune-everything <filesystem>\n"
 407                 "hammer rebalance <filesystem> [saturation_percentage]\n"
 408                 "hammer reblock[-btree/inodes/dirs/data] "
 409                         "<filesystem> [fill_percentage]\n"
 410                 "hammer pfs-status <dirpath> ...\n"
 411                 "hammer pfs-master <dirpath> [options]\n"
 412                 "hammer pfs-slave <dirpath> [options]\n"
 413                 "hammer pfs-update <dirpath> [options]\n"
 414                 "hammer pfs-upgrade <dirpath>\n"
 415                 "hammer pfs-downgrade <dirpath>\n"
 416                 "hammer pfs-destroy <dirpath>\n"
 417                 "hammer mirror-read <filesystem> [begin-tid]\n"
 418                 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
 419                 "hammer mirror-write <filesystem>\n"
 420                 "hammer mirror-dump\n"
 421                 "hammer mirror-copy [[user@]host:]<filesystem>"
 422                                   " [[user@]host:]<filesystem>\n"
 423                 "hammer mirror-stream [[user@]host:]<filesystem>"
 424                                     " [[user@]host:]<filesystem>\n"
 425                 "hammer version <filesystem>\n"
 426                 "hammer version-upgrade <filesystem> version# [force]\n"
 427         );
 428         exit(exit_code);
 429 }
 430