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 usage(int exit_code);
  44
  45 int RecurseOpt;
  46 int VerboseOpt;
  47 int QuietOpt;
  48 int NoSyncOpt;
  49 int TwoWayPipeOpt;
  50 int TimeoutOpt;
  51 int DelayOpt = 5;
  52 u_int64_t BandwidthOpt;
  53 const char *CyclePath;
  54 const char *LinkPath;
  55
  56 int
  57 main(int ac, char **av)
  58 {
  59         char *blkdevs = NULL;
  60         char *ptr;
  61         u_int32_t status;
  62         int ch;
  63
  64         while ((ch = getopt(ac, av, "b:c:dhf:i:qrs:t:v2")) != -1) {
  65                 switch(ch) {
  66                 case '2':
  67                         TwoWayPipeOpt = 1;
  68                         break;
  69                 case 'b':
  70                         BandwidthOpt = strtoull(optarg, &ptr, 0);
  71                         switch(*ptr) {
  72                         case 'g':
  73                         case 'G':
  74                                 BandwidthOpt *= 1024;
  75                                 /* fall through */
  76                         case 'm':
  77                         case 'M':
  78                                 BandwidthOpt *= 1024;
  79                                 /* fall through */
  80                         case 'k':
  81                         case 'K':
  82                                 BandwidthOpt *= 1024;
  83                                 break;
  84                         default:
  85                                 usage(1);
  86                         }
  87                         break;
  88                 case 'c':
  89                         CyclePath = optarg;
  90                         break;
  91                 case 'd':
  92                         ++DebugOpt;
  93                         break;
  94                 case 'h':
  95                         usage(0);
  96                         /* not reached */
  97                 case 'i':
  98                         DelayOpt = strtol(optarg, NULL, 0);
  99                         break;
 100                 case 'r':
 101                         RecurseOpt = 1;
 102                         break;
 103                 case 'f':
 104                         blkdevs = optarg;
 105                         break;
 106                 case 's':
 107                         LinkPath = optarg;
 108                         break;
 109                 case 't':
 110                         TimeoutOpt = strtol(optarg, NULL, 0);
 111                         break;
 112                 case 'v':
 113                         if (QuietOpt > 0)
 114                                 --QuietOpt;
 115                         else
 116                                 ++VerboseOpt;
 117                         break;
 118                 case 'q':
 119                         if (VerboseOpt > 0)
 120                                 --VerboseOpt;
 121                         else
 122                                 ++QuietOpt;
 123                         break;
 124                 default:
 125                         usage(1);
 126                         /* not reached */
 127                 }
 128         }
 129         ac -= optind;
 130         av += optind;
 131         if (ac < 1) {
 132                 usage(1);
 133                 /* not reached */
 134         }
 135
 136         signal(SIGALRM, sigalrm);
 137
 138         if (strcmp(av[0], "synctid") == 0) {
 139                 hammer_cmd_synctid(av + 1, ac - 1);
 140                 exit(0);
 141         }
 142         if (strcmp(av[0], "namekey2") == 0) {
 143                 int64_t key;
 144                 int32_t crcx;
 145                 int len;
 146                 const char *aname = av[1];
 147
 148                 if (aname == NULL)
 149                         usage(1);
 150                 len = strlen(aname);
 151                 key = (u_int32_t)crc32(aname, len) & 0xFFFFFFFEU;
 152
 153                 switch(len) {
 154                 default:
 155                         crcx = crc32(aname + 3, len - 5);
 156                         crcx = crcx ^ (crcx >> 6) ^ (crcx >> 12);
 157                         key |= (int64_t)(crcx & 0x3F) << 42;
 158                         /* fall through */
 159                 case 5:
 160                 case 4:
 161                         /* fall through */
 162                 case 3:
 163                         key |= ((int64_t)(aname[2] & 0x1F) << 48);
 164                         /* fall through */
 165                 case 2:
 166                         key |= ((int64_t)(aname[1] & 0x1F) << 53) |
 167                                ((int64_t)(aname[len-2] & 0x1F) << 37);
 168                         /* fall through */
 169                 case 1:
 170                         key |= ((int64_t)(aname[0] & 0x1F) << 58) |
 171                                ((int64_t)(aname[len-1] & 0x1F) << 32);
 172                         /* fall through */
 173                 case 0:
 174                         break;
 175                 }
 176                 if (key == 0)
 177                         key |= 0x100000000LL;
 178                 printf("0x%016llx\n", key);
 179                 exit(0);
 180         }
 181         if (strcmp(av[0], "namekey1") == 0) {
 182                 int64_t key;
 183
 184                 if (av[1] == NULL)
 185                         usage(1);
 186                 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
 187                 if (key == 0)
 188                         key |= 0x100000000LL;
 189                 printf("0x%016llx\n", key);
 190                 exit(0);
 191         }
 192         if (strcmp(av[0], "namekey32") == 0) {
 193                 int32_t key;
 194
 195                 if (av[1] == NULL)
 196                         usage(1);
 197                 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
 198                 if (key == 0)
 199                         ++key;
 200                 printf("0x%08x\n", key);
 201                 exit(0);
 202         }
 203         if (strcmp(av[0], "pfs-status") == 0) {
 204                 hammer_cmd_pseudofs_status(av + 1, ac - 1);
 205                 exit(0);
 206         }
 207         if (strcmp(av[0], "pfs-master") == 0) {
 208                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
 209                 exit(0);
 210         }
 211         if (strcmp(av[0], "pfs-slave") == 0) {
 212                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
 213                 exit(0);
 214         }
 215         if (strcmp(av[0], "pfs-update") == 0) {
 216                 hammer_cmd_pseudofs_update(av + 1, ac - 1);
 217                 exit(0);
 218         }
 219         if (strcmp(av[0], "pfs-upgrade") == 0) {
 220                 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
 221                 exit(0);
 222         }
 223         if (strcmp(av[0], "pfs-downgrade") == 0) {
 224                 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
 225                 exit(0);
 226         }
 227         if (strcmp(av[0], "pfs-destroy") == 0) {
 228                 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
 229                 exit(0);
 230         }
 231         if (strcmp(av[0], "status") == 0) {
 232                 hammer_cmd_status(av + 1, ac - 1);
 233                 exit(0);
 234         }
 235         if (strcmp(av[0], "prune") == 0) {
 236                 hammer_cmd_softprune(av + 1, ac - 1, 0);
 237                 exit(0);
 238         }
 239         if (strcmp(av[0], "cleanup") == 0) {
 240                 hammer_cmd_cleanup(av + 1, ac - 1);
 241                 exit(0);
 242         }
 243         if (strcmp(av[0], "prune-everything") == 0) {
 244                 hammer_cmd_softprune(av + 1, ac - 1, 1);
 245                 exit(0);
 246         }
 247         if (strcmp(av[0], "snapshot") == 0) {
 248                 hammer_cmd_snapshot(av + 1, ac - 1);
 249                 exit(0);
 250         }
 251         if (strcmp(av[0], "bstats") == 0) {
 252                 hammer_cmd_bstats(av + 1, ac - 1);
 253                 exit(0);
 254         }
 255         if (strcmp(av[0], "iostats") == 0) {
 256                 hammer_cmd_iostats(av + 1, ac - 1);
 257                 exit(0);
 258         }
 259
 260         if (strncmp(av[0], "history", 7) == 0) {
 261                 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
 262                 exit(0);
 263         }
 264         if (strncmp(av[0], "reblock", 7) == 0) {
 265                 signal(SIGINT, sigalrm);
 266                 if (strcmp(av[0], "reblock") == 0)
 267                         hammer_cmd_reblock(av + 1, ac - 1, -1);
 268                 else if (strcmp(av[0], "reblock-btree") == 0)
 269                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
 270                 else if (strcmp(av[0], "reblock-inodes") == 0)
 271                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
 272                 else if (strcmp(av[0], "reblock-dirs") == 0)
 273                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
 274                 else if (strcmp(av[0], "reblock-data") == 0)
 275                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
 276                 else
 277                         usage(1);
 278                 exit(0);
 279         }
 280         if (strncmp(av[0], "mirror", 6) == 0) {
 281                 if (strcmp(av[0], "mirror-read") == 0)
 282                         hammer_cmd_mirror_read(av + 1, ac - 1, 0);
 283                 else if (strcmp(av[0], "mirror-read-stream") == 0)
 284                         hammer_cmd_mirror_read(av + 1, ac - 1, 1);
 285                 else if (strcmp(av[0], "mirror-write") == 0)
 286                         hammer_cmd_mirror_write(av + 1, ac - 1);
 287                 else if (strcmp(av[0], "mirror-copy") == 0)
 288                         hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
 289                 else if (strcmp(av[0], "mirror-stream") == 0)
 290                         hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
 291                 else if (strcmp(av[0], "mirror-dump") == 0)
 292                         hammer_cmd_mirror_dump();
 293                 else
 294                         usage(1);
 295                 exit(0);
 296         }
 297         if (strcmp(av[0], "version") == 0) {
 298                 hammer_cmd_get_version(av + 1, ac - 1);
 299                 exit(0);
 300         }
 301         if (strcmp(av[0], "version-upgrade") == 0) {
 302                 hammer_cmd_set_version(av + 1, ac - 1);
 303                 exit(0);
 304         }
 305
 306         uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
 307         if (status != uuid_s_ok) {
 308                 errx(1, "uuids file does not have the DragonFly "
 309                         "HAMMER filesystem type");
 310         }
 311
 312         if (strcmp(av[0], "show") == 0) {
 313                 hammer_off_t node_offset = (hammer_off_t)-1;
 314
 315                 hammer_parsedevs(blkdevs);
 316                 if (ac > 1)
 317                         sscanf(av[1], "%llx", &node_offset);
 318                 hammer_cmd_show(node_offset, 0, NULL, NULL);
 319                 exit(0);
 320         }
 321         if (strcmp(av[0], "blockmap") == 0) {
 322                 hammer_parsedevs(blkdevs);
 323                 hammer_cmd_blockmap();
 324                 exit(0);
 325         }
 326         usage(1);
 327         /* not reached */
 328         return(0);
 329 }
 330
 331 static
 332 void
 333 hammer_parsedevs(const char *blkdevs)
 334 {
 335         char *copy;
 336         char *volname;
 337
 338         if (blkdevs == NULL) {
 339                 errx(1, "A -f blkdev[:blkdev]* specification is required "
 340                         "for this command");
 341         }
 342
 343         copy = strdup(blkdevs);
 344         while ((volname = copy) != NULL) {
 345                 if ((copy = strchr(copy, ':')) != NULL)
 346                         *copy++ = 0;
 347                 setup_volume(-1, volname, 0, O_RDONLY);
 348         }
 349 }
 350
 351 static
 352 void
 353 sigalrm(int signo __unused)
 354 {
 355         /* do nothing (interrupts HAMMER ioctl) */
 356 }
 357
 358 static
 359 void
 360 usage(int exit_code)
 361 {
 362         fprintf(stderr,
 363                 "hammer -h\n"
 364                 "hammer [-2qrv] [-b bandwidth] [-c cyclefile] [-f blkdev[:blkdev]*]\n"
 365                 "       [-i delay ] [-t seconds] command [argument ...]\n"
 366                 "hammer synctid <filesystem> [quick]\n"
 367                 "hammer bstats [interval]\n"
 368                 "hammer iostats [interval]\n"
 369                 "hammer history[@offset[,len]] <file> ...\n"
 370                 "hammer -f blkdev[:blkdev]* [-r] show [offset]\n"
 371 #if 0
 372                 "hammer -f blkdev[:blkdev]* blockmap\n"
 373 #endif
 374                 "hammer namekey1 <path>\n"
 375                 "hammer namekey2 <path>\n"
 376                 "hammer cleanup [<filesystem> ...]\n"
 377                 "hammer snapshot [<filesystem>] <snapshot-dir>\n"
 378                 "hammer prune <softlink-dir>\n"
 379                 "hammer prune-everything <filesystem>\n"
 380                 "hammer reblock[-btree/inodes/dirs/data] "
 381                         "<filesystem> [fill_percentage]\n"
 382                 "hammer pfs-status <dirpath> ...\n"
 383                 "hammer pfs-master <dirpath> [options]\n"
 384                 "hammer pfs-slave <dirpath> [options]\n"
 385                 "hammer pfs-update <dirpath> [options]\n"
 386                 "hammer pfs-upgrade <dirpath>\n"
 387                 "hammer pfs-downgrade <dirpath>\n"
 388                 "hammer pfs-destroy <dirpath>\n"
 389                 "hammer mirror-read <filesystem> [begin-tid]\n"
 390                 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
 391                 "hammer mirror-write <filesystem>\n"
 392                 "hammer mirror-dump\n"
 393                 "hammer mirror-copy [[user@]host:]<filesystem>"
 394                                   " [[user@]host:]<filesystem>\n"
 395                 "hammer mirror-stream [[user@]host:]<filesystem>"
 396                                     " [[user@]host:]<filesystem>\n"
 397                 "hammer version <filesystem>\n"
 398                 "hammer version-upgrade <filesystem> version# [force]\n"
 399         );
 400         exit(exit_code);
 401 }
 402