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 RunningIoctl;
  54 int DidInterrupt;
  55 u_int64_t BandwidthOpt;
  56 const char *CyclePath;
  57 const char *LinkPath;
  58
  59 int
  60 main(int ac, char **av)
  61 {
  62         char *blkdevs = NULL;
  63         char *ptr;
  64         u_int32_t status;
  65         int ch;
  66
  67         while ((ch = getopt(ac, av, "b:c:dhf:i:qrs:t:v2")) != -1) {
  68                 switch(ch) {
  69                 case '2':
  70                         TwoWayPipeOpt = 1;
  71                         break;
  72                 case 'b':
  73                         BandwidthOpt = strtoull(optarg, &ptr, 0);
  74                         switch(*ptr) {
  75                         case 'g':
  76                         case 'G':
  77                                 BandwidthOpt *= 1024;
  78                                 /* fall through */
  79                         case 'm':
  80                         case 'M':
  81                                 BandwidthOpt *= 1024;
  82                                 /* fall through */
  83                         case 'k':
  84                         case 'K':
  85                                 BandwidthOpt *= 1024;
  86                                 break;
  87                         case '\0':
  88                                 /* bytes per second if no suffix */
  89                                 break;
  90                         default:
  91                                 usage(1);
  92                         }
  93                         break;
  94                 case 'c':
  95                         CyclePath = optarg;
  96                         break;
  97                 case 'd':
  98                         ++DebugOpt;
  99                         break;
 100                 case 'h':
 101                         usage(0);
 102                         /* not reached */
 103                 case 'i':
 104                         DelayOpt = strtol(optarg, NULL, 0);
 105                         break;
 106                 case 'r':
 107                         RecurseOpt = 1;
 108                         break;
 109                 case 'f':
 110                         blkdevs = optarg;
 111                         break;
 112                 case 's':
 113                         LinkPath = optarg;
 114                         break;
 115                 case 't':
 116                         TimeoutOpt = strtol(optarg, NULL, 0);
 117                         break;
 118                 case 'v':
 119                         if (QuietOpt > 0)
 120                                 --QuietOpt;
 121                         else
 122                                 ++VerboseOpt;
 123                         break;
 124                 case 'q':
 125                         if (VerboseOpt > 0)
 126                                 --VerboseOpt;
 127                         else
 128                                 ++QuietOpt;
 129                         break;
 130                 default:
 131                         usage(1);
 132                         /* not reached */
 133                 }
 134         }
 135         ac -= optind;
 136         av += optind;
 137         if (ac < 1) {
 138                 usage(1);
 139                 /* not reached */
 140         }
 141
 142         signal(SIGALRM, sigalrm);
 143         signal(SIGINT, sigintr);
 144
 145         if (strcmp(av[0], "synctid") == 0) {
 146                 hammer_cmd_synctid(av + 1, ac - 1);
 147                 exit(0);
 148         }
 149         if (strcmp(av[0], "namekey2") == 0) {
 150                 int64_t key;
 151                 int32_t crcx;
 152                 int len;
 153                 const char *aname = av[1];
 154
 155                 if (aname == NULL)
 156                         usage(1);
 157                 len = strlen(aname);
 158                 key = (u_int32_t)crc32(aname, len) & 0xFFFFFFFEU;
 159
 160                 switch(len) {
 161                 default:
 162                         crcx = crc32(aname + 3, len - 5);
 163                         crcx = crcx ^ (crcx >> 6) ^ (crcx >> 12);
 164                         key |= (int64_t)(crcx & 0x3F) << 42;
 165                         /* fall through */
 166                 case 5:
 167                 case 4:
 168                         /* fall through */
 169                 case 3:
 170                         key |= ((int64_t)(aname[2] & 0x1F) << 48);
 171                         /* fall through */
 172                 case 2:
 173                         key |= ((int64_t)(aname[1] & 0x1F) << 53) |
 174                                ((int64_t)(aname[len-2] & 0x1F) << 37);
 175                         /* fall through */
 176                 case 1:
 177                         key |= ((int64_t)(aname[0] & 0x1F) << 58) |
 178                                ((int64_t)(aname[len-1] & 0x1F) << 32);
 179                         /* fall through */
 180                 case 0:
 181                         break;
 182                 }
 183                 if (key == 0)
 184                         key |= 0x100000000LL;
 185                 printf("0x%016llx\n", key);
 186                 exit(0);
 187         }
 188         if (strcmp(av[0], "namekey1") == 0) {
 189                 int64_t key;
 190
 191                 if (av[1] == NULL)
 192                         usage(1);
 193                 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
 194                 if (key == 0)
 195                         key |= 0x100000000LL;
 196                 printf("0x%016llx\n", key);
 197                 exit(0);
 198         }
 199         if (strcmp(av[0], "namekey32") == 0) {
 200                 int32_t key;
 201
 202                 if (av[1] == NULL)
 203                         usage(1);
 204                 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
 205                 if (key == 0)
 206                         ++key;
 207                 printf("0x%08x\n", key);
 208                 exit(0);
 209         }
 210         if (strcmp(av[0], "pfs-status") == 0) {
 211                 hammer_cmd_pseudofs_status(av + 1, ac - 1);
 212                 exit(0);
 213         }
 214         if (strcmp(av[0], "pfs-master") == 0) {
 215                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
 216                 exit(0);
 217         }
 218         if (strcmp(av[0], "pfs-slave") == 0) {
 219                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
 220                 exit(0);
 221         }
 222         if (strcmp(av[0], "pfs-update") == 0) {
 223                 hammer_cmd_pseudofs_update(av + 1, ac - 1);
 224                 exit(0);
 225         }
 226         if (strcmp(av[0], "pfs-upgrade") == 0) {
 227                 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
 228                 exit(0);
 229         }
 230         if (strcmp(av[0], "pfs-downgrade") == 0) {
 231                 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
 232                 exit(0);
 233         }
 234         if (strcmp(av[0], "pfs-destroy") == 0) {
 235                 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
 236                 exit(0);
 237         }
 238         if (strcmp(av[0], "status") == 0) {
 239                 hammer_cmd_status(av + 1, ac - 1);
 240                 exit(0);
 241         }
 242         if (strcmp(av[0], "prune") == 0) {
 243                 hammer_cmd_softprune(av + 1, ac - 1, 0);
 244                 exit(0);
 245         }
 246         if (strcmp(av[0], "cleanup") == 0) {
 247                 hammer_cmd_cleanup(av + 1, ac - 1);
 248                 exit(0);
 249         }
 250         if (strcmp(av[0], "prune-everything") == 0) {
 251                 hammer_cmd_softprune(av + 1, ac - 1, 1);
 252                 exit(0);
 253         }
 254         if (strcmp(av[0], "snapshot") == 0) {
 255                 hammer_cmd_snapshot(av + 1, ac - 1);
 256                 exit(0);
 257         }
 258         if (strcmp(av[0], "bstats") == 0) {
 259                 hammer_cmd_bstats(av + 1, ac - 1);
 260                 exit(0);
 261         }
 262         if (strcmp(av[0], "iostats") == 0) {
 263                 hammer_cmd_iostats(av + 1, ac - 1);
 264                 exit(0);
 265         }
 266
 267         if (strncmp(av[0], "history", 7) == 0) {
 268                 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
 269                 exit(0);
 270         }
 271         if (strcmp(av[0], "rebalance") == 0) {
 272                 signal(SIGINT, sigalrm);
 273                 hammer_cmd_rebalance(av + 1, ac - 1);
 274                 exit(0);
 275         }
 276         if (strncmp(av[0], "reblock", 7) == 0) {
 277                 signal(SIGINT, sigalrm);
 278                 if (strcmp(av[0], "reblock") == 0)
 279                         hammer_cmd_reblock(av + 1, ac - 1, -1);
 280                 else if (strcmp(av[0], "reblock-btree") == 0)
 281                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
 282                 else if (strcmp(av[0], "reblock-inodes") == 0)
 283                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
 284                 else if (strcmp(av[0], "reblock-dirs") == 0)
 285                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
 286                 else if (strcmp(av[0], "reblock-data") == 0)
 287                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
 288                 else
 289                         usage(1);
 290                 exit(0);
 291         }
 292         if (strncmp(av[0], "mirror", 6) == 0) {
 293                 if (strcmp(av[0], "mirror-read") == 0)
 294                         hammer_cmd_mirror_read(av + 1, ac - 1, 0);
 295                 else if (strcmp(av[0], "mirror-read-stream") == 0)
 296                         hammer_cmd_mirror_read(av + 1, ac - 1, 1);
 297                 else if (strcmp(av[0], "mirror-write") == 0)
 298                         hammer_cmd_mirror_write(av + 1, ac - 1);
 299                 else if (strcmp(av[0], "mirror-copy") == 0)
 300                         hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
 301                 else if (strcmp(av[0], "mirror-stream") == 0)
 302                         hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
 303                 else if (strcmp(av[0], "mirror-dump") == 0)
 304                         hammer_cmd_mirror_dump();
 305                 else
 306                         usage(1);
 307                 exit(0);
 308         }
 309         if (strcmp(av[0], "version") == 0) {
 310                 hammer_cmd_get_version(av + 1, ac - 1);
 311                 exit(0);
 312         }
 313         if (strcmp(av[0], "version-upgrade") == 0) {
 314                 hammer_cmd_set_version(av + 1, ac - 1);
 315                 exit(0);
 316         }
 317
 318         uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
 319         if (status != uuid_s_ok) {
 320                 errx(1, "uuids file does not have the DragonFly "
 321                         "HAMMER filesystem type");
 322         }
 323
 324         if (strcmp(av[0], "show") == 0) {
 325                 hammer_off_t node_offset = (hammer_off_t)-1;
 326
 327                 hammer_parsedevs(blkdevs);
 328                 if (ac > 1)
 329                         sscanf(av[1], "%llx", &node_offset);
 330                 hammer_cmd_show(node_offset, 0, NULL, NULL);
 331                 exit(0);
 332         }
 333         if (strcmp(av[0], "blockmap") == 0) {
 334                 hammer_parsedevs(blkdevs);
 335                 hammer_cmd_blockmap();
 336                 exit(0);
 337         }
 338         usage(1);
 339         /* not reached */
 340         return(0);
 341 }
 342
 343 static
 344 void
 345 hammer_parsedevs(const char *blkdevs)
 346 {
 347         char *copy;
 348         char *volname;
 349
 350         if (blkdevs == NULL) {
 351                 errx(1, "A -f blkdev[:blkdev]* specification is required "
 352                         "for this command");
 353         }
 354
 355         copy = strdup(blkdevs);
 356         while ((volname = copy) != NULL) {
 357                 if ((copy = strchr(copy, ':')) != NULL)
 358                         *copy++ = 0;
 359                 setup_volume(-1, volname, 0, O_RDONLY);
 360         }
 361 }
 362
 363 static
 364 void
 365 sigalrm(int signo __unused)
 366 {
 367         /* do nothing (interrupts HAMMER ioctl) */
 368 }
 369
 370 static
 371 void
 372 sigintr(int signo __unused)
 373 {
 374         if (RunningIoctl == 0)
 375                 _exit(1);
 376         DidInterrupt = 1;
 377         /* do nothing (interrupts HAMMER ioctl) */
 378 }
 379
 380 static
 381 void
 382 usage(int exit_code)
 383 {
 384         fprintf(stderr,
 385                 "hammer -h\n"
 386                 "hammer [-2qrv] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
 387                 "       [-i delay ] [-t seconds] command [argument ...]\n"
 388                 "hammer synctid <filesystem> [quick]\n"
 389                 "hammer -f blkdev[:blkdev]* blockmap\n"
 390                 "hammer bstats [interval]\n"
 391                 "hammer iostats [interval]\n"
 392                 "hammer history[@offset[,len]] <file> ...\n"
 393                 "hammer -f blkdev[:blkdev]* [-r] [-vvv] show [offset]\n"
 394 #if 0
 395                 "hammer -f blkdev[:blkdev]* blockmap\n"
 396 #endif
 397                 "hammer namekey1 <path>\n"
 398                 "hammer namekey2 <path>\n"
 399                 "hammer cleanup [<filesystem> ...]\n"
 400                 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
 401                 "hammer prune <softlink-dir>\n"
 402                 "hammer prune-everything <filesystem>\n"
 403                 "hammer rebalance <filesystem> [saturation_percentage]\n"
 404                 "hammer reblock[-btree/inodes/dirs/data] "
 405                         "<filesystem> [fill_percentage]\n"
 406                 "hammer pfs-status <dirpath> ...\n"
 407                 "hammer pfs-master <dirpath> [options]\n"
 408                 "hammer pfs-slave <dirpath> [options]\n"
 409                 "hammer pfs-update <dirpath> [options]\n"
 410                 "hammer pfs-upgrade <dirpath>\n"
 411                 "hammer pfs-downgrade <dirpath>\n"
 412                 "hammer pfs-destroy <dirpath>\n"
 413                 "hammer mirror-read <filesystem> [begin-tid]\n"
 414                 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
 415                 "hammer mirror-write <filesystem>\n"
 416                 "hammer mirror-dump\n"
 417                 "hammer mirror-copy [[user@]host:]<filesystem>"
 418                                   " [[user@]host:]<filesystem>\n"
 419                 "hammer mirror-stream [[user@]host:]<filesystem>"
 420                                     " [[user@]host:]<filesystem>\n"
 421                 "hammer version <filesystem>\n"
 422                 "hammer version-upgrade <filesystem> version# [force]\n"
 423         );
 424         exit(exit_code);
 425 }
 426