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 1.41 2008/09/30 23:13:08 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], "namekey") == 0) {
 143                 int64_t key;
 144
 145                 if (av[1] == NULL)
 146                         usage(1);
 147                 key = (int64_t)(crc32(av[1], strlen(av[1])) & 0x7FFFFFFF) << 32;
 148                 if (key == 0)
 149                         key |= 0x100000000LL;
 150                 printf("0x%016llx\n", key);
 151                 exit(0);
 152         }
 153         if (strcmp(av[0], "namekey32") == 0) {
 154                 int32_t key;
 155
 156                 if (av[1] == NULL)
 157                         usage(1);
 158                 key = crc32(av[1], strlen(av[1])) & 0x7FFFFFFF;
 159                 if (key == 0)
 160                         ++key;
 161                 printf("0x%08x\n", key);
 162                 exit(0);
 163         }
 164         if (strcmp(av[0], "pfs-status") == 0) {
 165                 hammer_cmd_pseudofs_status(av + 1, ac - 1);
 166                 exit(0);
 167         }
 168         if (strcmp(av[0], "pfs-master") == 0) {
 169                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 0);
 170                 exit(0);
 171         }
 172         if (strcmp(av[0], "pfs-slave") == 0) {
 173                 hammer_cmd_pseudofs_create(av + 1, ac - 1, 1);
 174                 exit(0);
 175         }
 176         if (strcmp(av[0], "pfs-update") == 0) {
 177                 hammer_cmd_pseudofs_update(av + 1, ac - 1);
 178                 exit(0);
 179         }
 180         if (strcmp(av[0], "pfs-upgrade") == 0) {
 181                 hammer_cmd_pseudofs_upgrade(av + 1, ac - 1);
 182                 exit(0);
 183         }
 184         if (strcmp(av[0], "pfs-downgrade") == 0) {
 185                 hammer_cmd_pseudofs_downgrade(av + 1, ac - 1);
 186                 exit(0);
 187         }
 188         if (strcmp(av[0], "pfs-destroy") == 0) {
 189                 hammer_cmd_pseudofs_destroy(av + 1, ac - 1);
 190                 exit(0);
 191         }
 192         if (strcmp(av[0], "status") == 0) {
 193                 hammer_cmd_status(av + 1, ac - 1);
 194                 exit(0);
 195         }
 196         if (strcmp(av[0], "prune") == 0) {
 197                 hammer_cmd_softprune(av + 1, ac - 1, 0);
 198                 exit(0);
 199         }
 200         if (strcmp(av[0], "cleanup") == 0) {
 201                 hammer_cmd_cleanup(av + 1, ac - 1);
 202                 exit(0);
 203         }
 204         if (strcmp(av[0], "prune-everything") == 0) {
 205                 hammer_cmd_softprune(av + 1, ac - 1, 1);
 206                 exit(0);
 207         }
 208         if (strcmp(av[0], "snapshot") == 0) {
 209                 hammer_cmd_snapshot(av + 1, ac - 1);
 210                 exit(0);
 211         }
 212         if (strcmp(av[0], "bstats") == 0) {
 213                 hammer_cmd_bstats(av + 1, ac - 1);
 214                 exit(0);
 215         }
 216         if (strcmp(av[0], "iostats") == 0) {
 217                 hammer_cmd_iostats(av + 1, ac - 1);
 218                 exit(0);
 219         }
 220
 221         if (strncmp(av[0], "history", 7) == 0) {
 222                 hammer_cmd_history(av[0] + 7, av + 1, ac - 1);
 223                 exit(0);
 224         }
 225         if (strncmp(av[0], "reblock", 7) == 0) {
 226                 signal(SIGINT, sigalrm);
 227                 if (strcmp(av[0], "reblock") == 0)
 228                         hammer_cmd_reblock(av + 1, ac - 1, -1);
 229                 else if (strcmp(av[0], "reblock-btree") == 0)
 230                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_BTREE);
 231                 else if (strcmp(av[0], "reblock-inodes") == 0)
 232                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_INODES);
 233                 else if (strcmp(av[0], "reblock-dirs") == 0)
 234                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DIRS);
 235                 else if (strcmp(av[0], "reblock-data") == 0)
 236                         hammer_cmd_reblock(av + 1, ac - 1, HAMMER_IOC_DO_DATA);
 237                 else
 238                         usage(1);
 239                 exit(0);
 240         }
 241         if (strncmp(av[0], "mirror", 6) == 0) {
 242                 if (strcmp(av[0], "mirror-read") == 0)
 243                         hammer_cmd_mirror_read(av + 1, ac - 1, 0);
 244                 else if (strcmp(av[0], "mirror-read-stream") == 0)
 245                         hammer_cmd_mirror_read(av + 1, ac - 1, 1);
 246                 else if (strcmp(av[0], "mirror-write") == 0)
 247                         hammer_cmd_mirror_write(av + 1, ac - 1);
 248                 else if (strcmp(av[0], "mirror-copy") == 0)
 249                         hammer_cmd_mirror_copy(av + 1, ac - 1, 0);
 250                 else if (strcmp(av[0], "mirror-stream") == 0)
 251                         hammer_cmd_mirror_copy(av + 1, ac - 1, 1);
 252                 else if (strcmp(av[0], "mirror-dump") == 0)
 253                         hammer_cmd_mirror_dump();
 254                 else
 255                         usage(1);
 256                 exit(0);
 257         }
 258
 259         uuid_name_lookup(&Hammer_FSType, "DragonFly HAMMER", &status);
 260         if (status != uuid_s_ok) {
 261                 errx(1, "uuids file does not have the DragonFly "
 262                         "HAMMER filesystem type");
 263         }
 264
 265         if (strcmp(av[0], "show") == 0) {
 266                 hammer_off_t node_offset = (hammer_off_t)-1;
 267
 268                 hammer_parsedevs(blkdevs);
 269                 if (ac > 1)
 270                         sscanf(av[1], "%llx", &node_offset);
 271                 hammer_cmd_show(node_offset, 0, NULL, NULL);
 272                 exit(0);
 273         }
 274         if (strcmp(av[0], "blockmap") == 0) {
 275                 hammer_parsedevs(blkdevs);
 276                 hammer_cmd_blockmap();
 277                 exit(0);
 278         }
 279         usage(1);
 280         /* not reached */
 281         return(0);
 282 }
 283
 284 static
 285 void
 286 hammer_parsedevs(const char *blkdevs)
 287 {
 288         char *copy;
 289         char *volname;
 290
 291         if (blkdevs == NULL) {
 292                 errx(1, "A -f blkdev[:blkdev]* specification is required "
 293                         "for this command");
 294         }
 295
 296         copy = strdup(blkdevs);
 297         while ((volname = copy) != NULL) {
 298                 if ((copy = strchr(copy, ':')) != NULL)
 299                         *copy++ = 0;
 300                 setup_volume(-1, volname, 0, O_RDONLY);
 301         }
 302 }
 303
 304 static
 305 void
 306 sigalrm(int signo __unused)
 307 {
 308         /* do nothing (interrupts HAMMER ioctl) */
 309 }
 310
 311 static
 312 void
 313 usage(int exit_code)
 314 {
 315         fprintf(stderr,
 316                 "hammer -h\n"
 317                 "hammer [-v] [-t seconds] [-c cyclefile] command [argument ...]\n"
 318                 "hammer cleanup [<filesystem> ...]\n"
 319                 "hammer synctid <filesystem> [quick]\n"
 320                 "hammer namekey[32] <path>\n"
 321                 "hammer prune <softlink-dir>\n"
 322                 "hammer prune-everything <filesystem>\n"
 323                 "hammer snapshot [filesystem] <snapshot-dir>\n"
 324                 "hammer bstats [interval]\n"
 325                 "hammer iostats [interval]\n"
 326                 "hammer mirror-read <filesystem> [begin-tid]\n"
 327                 "hammer mirror-read-stream <filesystem> [begin-tid]\n"
 328                 "hammer mirror-write <filesystem>\n"
 329                 "hammer mirror-dump\n"
 330                 "hammer mirror-copy [[user@]host:]<filesystem>"
 331                                   " [[user@]host:]<filesystem>\n"
 332                 "hammer mirror-stream [[user@]host:]<filesystem>"
 333                                     " [[user@]host:]<filesystem>\n"
 334                 "hammer reblock[-btree/inodes/dirs/data] "
 335                         "<filesystem> [fill_percentage]\n"
 336                 "hammer pfs-status <dirpath> ...\n"
 337                 "hammer pfs-master <dirpath> [options]\n"
 338                 "hammer pfs-slave <dirpath> [options]\n"
 339                 "hammer pfs-update <dirpath> [options]\n"
 340                 "hammer pfs-upgrade <dirpath>\n"
 341                 "hammer pfs-downgrade <dirpath>\n"
 342                 "hammer pfs-destroy <dirpath>\n"
 343                 "hammer history[@offset[,len]] <file> ...\n"
 344                 "hammer -f blkdev[:blkdev]* [-r] show [offset]\n"
 345 #if 0
 346                 "hammer -f blkdev[:blkdev]* blockmap\n"
 347 #endif
 348         );
 349         exit(exit_code);
 350 }
 351