e2fsck/unix.c

   1 /*
   2  * unix.c - The unix-specific code for e2fsck
   3  *
   4  * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
  13
  14 #include "config.h"
  15 #include <stdio.h>
  16 #ifdef HAVE_STDLIB_H
  17 #include <stdlib.h>
  18 #endif
  19 #include <string.h>
  20 #include <fcntl.h>
  21 #include <ctype.h>
  22 #include <time.h>
  23 #ifdef HAVE_SIGNAL_H
  24 #include <signal.h>
  25 #endif
  26 #ifdef HAVE_GETOPT_H
  27 #include <getopt.h>
  28 #else
  29 extern char *optarg;
  30 extern int optind;
  31 #endif
  32 #include <unistd.h>
  33 #ifdef HAVE_ERRNO_H
  34 #include <errno.h>
  35 #endif
  36 #ifdef HAVE_SYS_IOCTL_H
  37 #include <sys/ioctl.h>
  38 #endif
  39 #ifdef HAVE_MALLOC_H
  40 #include <malloc.h>
  41 #endif
  42 #ifdef HAVE_SYS_TYPES_H
  43 #include <sys/types.h>
  44 #endif
  45 #ifdef HAVE_DIRENT_H
  46 #include <dirent.h>
  47 #endif
  48
  49 #include "e2p/e2p.h"
  50 #include "et/com_err.h"
  51 #include "e2p/e2p.h"
  52 #include "e2fsck.h"
  53 #include "problem.h"
  54 #include "../version.h"
  55 #include "../misc/plausible.h"
  56
  57 /* Command line options */
  58 static int cflag;               /* check disk */
  59 static int show_version_only;
  60 static int verbose;
  61
  62 static int replace_bad_blocks;
  63 static int keep_bad_blocks;
  64 static char *bad_blocks_file;
  65
  66 e2fsck_t e2fsck_global_ctx;     /* Try your very best not to use this! */
  67
  68 #ifdef CONFIG_JBD_DEBUG         /* Enabled by configure --enable-jfs-debug */
  69 int journal_enable_debug = -1;
  70 #endif
  71
  72 static void usage(e2fsck_t ctx)
  73 {
  74         fprintf(stderr,
  75                 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n"
  76                 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
  77                 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
  78                 "\t\t[-E extended-options] device\n"),
  79                 ctx->program_name);
  80
  81         fprintf(stderr, "%s", _("\nEmergency help:\n"
  82                 " -p                   Automatic repair (no questions)\n"
  83                 " -n                   Make no changes to the filesystem\n"
  84                 " -y                   Assume \"yes\" to all questions\n"
  85                 " -c                   Check for bad blocks and add them to the badblock list\n"
  86                 " -f                   Force checking even if filesystem is marked clean\n"));
  87         fprintf(stderr, "%s", _(""
  88                 " -v                   Be verbose\n"
  89                 " -b superblock        Use alternative superblock\n"
  90                 " -B blocksize         Force blocksize when looking for superblock\n"
  91                 " -j external_journal  Set location of the external journal\n"
  92                 " -l bad_blocks_file   Add to badblocks list\n"
  93                 " -L bad_blocks_file   Set badblocks list\n"
  94                 ));
  95
  96         exit(FSCK_USAGE);
  97 }
  98
  99 static void show_stats(e2fsck_t ctx)
 100 {
 101         ext2_filsys fs = ctx->fs;
 102         ext2_ino_t inodes, inodes_used;
 103         blk64_t blocks, blocks_used;
 104         unsigned int dir_links;
 105         unsigned int num_files, num_links;
 106         __u32 *mask, m;
 107         int frag_percent_file, frag_percent_dir, frag_percent_total;
 108         int i, j, printed = 0;
 109
 110         dir_links = 2 * ctx->fs_directory_count - 1;
 111         num_files = ctx->fs_total_count - dir_links;
 112         num_links = ctx->fs_links_count - dir_links;
 113         inodes = fs->super->s_inodes_count;
 114         inodes_used = (fs->super->s_inodes_count -
 115                        fs->super->s_free_inodes_count);
 116         blocks = ext2fs_blocks_count(fs->super);
 117         blocks_used = (ext2fs_blocks_count(fs->super) -
 118                        ext2fs_free_blocks_count(fs->super));
 119
 120         frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
 121         frag_percent_file = (frag_percent_file + 5) / 10;
 122
 123         frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
 124         frag_percent_dir = (frag_percent_dir + 5) / 10;
 125
 126         frag_percent_total = ((10000 * (ctx->fs_fragmented +
 127                                         ctx->fs_fragmented_dir))
 128                               / inodes_used);
 129         frag_percent_total = (frag_percent_total + 5) / 10;
 130
 131         if (!verbose) {
 132                 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
 133                                "%llu/%llu blocks\n"),
 134                         ctx->device_name, inodes_used, inodes,
 135                         frag_percent_total / 10, frag_percent_total % 10,
 136                         blocks_used, blocks);
 137                 return;
 138         }
 139         profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
 140                             &i);
 141         if (verbose && i) {
 142                 log_out(ctx, "\nFilesystem features:");
 143                 mask = &ctx->fs->super->s_feature_compat;
 144                 for (i = 0; i < 3; i++, mask++) {
 145                         for (j = 0, m = 1; j < 32; j++, m <<= 1) {
 146                                 if (*mask & m) {
 147                                         log_out(ctx, " %s",
 148                                                 e2p_feature2string(i, m));
 149                                         printed++;
 150                                 }
 151                         }
 152                 }
 153                 if (printed == 0)
 154                         log_out(ctx, " (none)");
 155                 log_out(ctx, "\n");
 156         }
 157
 158         log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
 159                         "\n%12u inodes used (%2.2f%%, out of %u)\n",
 160                         inodes_used), inodes_used,
 161                 100.0 * inodes_used / inodes, inodes);
 162         log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
 163                         "%12u non-contiguous files (%0d.%d%%)\n",
 164                         ctx->fs_fragmented),
 165                 ctx->fs_fragmented, frag_percent_file / 10,
 166                 frag_percent_file % 10);
 167         log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
 168                         "%12u non-contiguous directories (%0d.%d%%)\n",
 169                         ctx->fs_fragmented_dir),
 170                 ctx->fs_fragmented_dir, frag_percent_dir / 10,
 171                 frag_percent_dir % 10);
 172         log_out(ctx, _("             # of inodes with ind/dind/tind blocks: "
 173                        "%u/%u/%u\n"),
 174                 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
 175
 176         for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
 177                 if (ctx->extent_depth_count[j])
 178                         break;
 179         if (++j) {
 180                 log_out(ctx, "%s", _("             Extent depth histogram: "));
 181                 for (i=0; i < j; i++) {
 182                         if (i)
 183                                 fputc('/', stdout);
 184                         log_out(ctx, "%u", ctx->extent_depth_count[i]);
 185                 }
 186                 log_out(ctx, "\n");
 187         }
 188
 189         log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
 190                         "%12llu blocks used (%2.2f%%, out of %llu)\n",
 191                    blocks_used),
 192                 blocks_used, 100.0 * blocks_used / blocks, blocks);
 193         log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
 194                         ctx->fs_badblocks_count), ctx->fs_badblocks_count);
 195         log_out(ctx, P_("%12u large file\n", "%12u large files\n",
 196                         ctx->large_files), ctx->large_files);
 197         log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
 198                         ctx->fs_regular_count), ctx->fs_regular_count);
 199         log_out(ctx, P_("%12u directory\n", "%12u directories\n",
 200                         ctx->fs_directory_count), ctx->fs_directory_count);
 201         log_out(ctx, P_("%12u character device file\n",
 202                         "%12u character device files\n", ctx->fs_chardev_count),
 203                 ctx->fs_chardev_count);
 204         log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
 205                         ctx->fs_blockdev_count), ctx->fs_blockdev_count);
 206         log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
 207                 ctx->fs_fifo_count);
 208         log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
 209                 ctx->fs_links_count - dir_links);
 210         log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
 211                         ctx->fs_symlinks_count), ctx->fs_symlinks_count);
 212         log_out(ctx, P_(" (%u fast symbolic link)\n",
 213                         " (%u fast symbolic links)\n",
 214                         ctx->fs_fast_symlinks_count),
 215                 ctx->fs_fast_symlinks_count);
 216         log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
 217                         ctx->fs_sockets_count),
 218                 ctx->fs_sockets_count);
 219         log_out(ctx, "------------\n");
 220         log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
 221                 num_files);
 222 }
 223
 224 static void check_mount(e2fsck_t ctx)
 225 {
 226         errcode_t       retval;
 227         int             cont;
 228
 229         retval = ext2fs_check_if_mounted(ctx->filesystem_name,
 230                                          &ctx->mount_flags);
 231         if (retval) {
 232                 com_err("ext2fs_check_if_mount", retval,
 233                         _("while determining whether %s is mounted."),
 234                         ctx->filesystem_name);
 235                 return;
 236         }
 237
 238         /*
 239          * If the filesystem isn't mounted, or it's the root
 240          * filesystem and it's mounted read-only, and we're not doing
 241          * a read/write check, then everything's fine.
 242          */
 243         if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
 244             ((ctx->mount_flags & EXT2_MF_ISROOT) &&
 245              (ctx->mount_flags & EXT2_MF_READONLY) &&
 246              !(ctx->options & E2F_OPT_WRITECHECK)))
 247                 return;
 248
 249         if (((ctx->options & E2F_OPT_READONLY) ||
 250              ((ctx->options & E2F_OPT_FORCE) &&
 251               (ctx->mount_flags & EXT2_MF_READONLY))) &&
 252             !(ctx->options & E2F_OPT_WRITECHECK)) {
 253                 if (ctx->mount_flags & EXT2_MF_MOUNTED)
 254                         log_out(ctx, _("Warning!  %s is mounted.\n"),
 255                                         ctx->filesystem_name);
 256                 else
 257                         log_out(ctx, _("Warning!  %s is in use.\n"),
 258                                         ctx->filesystem_name);
 259                 return;
 260         }
 261
 262         if (ctx->mount_flags & EXT2_MF_MOUNTED)
 263                 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
 264         else
 265                 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
 266         if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
 267                 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
 268         puts("\007\007\007\007");
 269         log_out(ctx, "%s", _("\n\nWARNING!!!  "
 270                        "The filesystem is mounted.   "
 271                        "If you continue you ***WILL***\n"
 272                        "cause ***SEVERE*** filesystem damage.\n\n"));
 273         puts("\007\007\007");
 274         cont = ask_yn(ctx, _("Do you really want to continue"), 0);
 275         if (!cont) {
 276                 printf("%s", _("check aborted.\n"));
 277                 exit (0);
 278         }
 279         return;
 280 }
 281
 282 static int is_on_batt(void)
 283 {
 284         FILE    *f;
 285         DIR     *d;
 286         char    tmp[80], tmp2[80], fname[80];
 287         unsigned int    acflag;
 288         struct dirent*  de;
 289
 290         f = fopen("/sys/class/power_supply/AC/online", "r");
 291         if (f) {
 292                 if (fscanf(f, "%u\n", &acflag) == 1) {
 293                         fclose(f);
 294                         return (!acflag);
 295                 }
 296                 fclose(f);
 297         }
 298         f = fopen("/proc/apm", "r");
 299         if (f) {
 300                 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
 301                         acflag = 1;
 302                 fclose(f);
 303                 return (acflag != 1);
 304         }
 305         d = opendir("/proc/acpi/ac_adapter");
 306         if (d) {
 307                 while ((de=readdir(d)) != NULL) {
 308                         if (!strncmp(".", de->d_name, 1))
 309                                 continue;
 310                         snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
 311                                  de->d_name);
 312                         f = fopen(fname, "r");
 313                         if (!f)
 314                                 continue;
 315                         if (fscanf(f, "%s %s", tmp2, tmp) != 2)
 316                                 tmp[0] = 0;
 317                         fclose(f);
 318                         if (strncmp(tmp, "off-line", 8) == 0) {
 319                                 closedir(d);
 320                                 return 1;
 321                         }
 322                 }
 323                 closedir(d);
 324         }
 325         return 0;
 326 }
 327
 328 /*
 329  * This routine checks to see if a filesystem can be skipped; if so,
 330  * it will exit with E2FSCK_OK.  Under some conditions it will print a
 331  * message explaining why a check is being forced.
 332  */
 333 static void check_if_skip(e2fsck_t ctx)
 334 {
 335         ext2_filsys fs = ctx->fs;
 336         struct problem_context pctx;
 337         const char *reason = NULL;
 338         unsigned int reason_arg = 0;
 339         long next_check;
 340         int batt = is_on_batt();
 341         int defer_check_on_battery;
 342         int broken_system_clock;
 343         time_t lastcheck;
 344
 345         if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
 346                 return;
 347
 348         profile_get_boolean(ctx->profile, "options", "broken_system_clock",
 349                             0, 0, &broken_system_clock);
 350         if (ctx->flags & E2F_FLAG_TIME_INSANE)
 351                 broken_system_clock = 1;
 352         profile_get_boolean(ctx->profile, "options",
 353                             "defer_check_on_battery", 0, 1,
 354                             &defer_check_on_battery);
 355         if (!defer_check_on_battery)
 356                 batt = 0;
 357
 358         if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
 359                 return;
 360
 361         if (ctx->options & E2F_OPT_JOURNAL_ONLY)
 362                 goto skip;
 363
 364         lastcheck = fs->super->s_lastcheck;
 365         if (lastcheck > ctx->now)
 366                 lastcheck -= ctx->time_fudge;
 367         if ((fs->super->s_state & EXT2_ERROR_FS) ||
 368             !ext2fs_test_valid(fs))
 369                 reason = _(" contains a file system with errors");
 370         else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
 371                 reason = _(" was not cleanly unmounted");
 372         else if (check_backup_super_block(ctx))
 373                 reason = _(" primary superblock features different from backup");
 374         else if ((fs->super->s_max_mnt_count > 0) &&
 375                  (fs->super->s_mnt_count >=
 376                   (unsigned) fs->super->s_max_mnt_count)) {
 377                 reason = _(" has been mounted %u times without being checked");
 378                 reason_arg = fs->super->s_mnt_count;
 379                 if (batt && (fs->super->s_mnt_count <
 380                              (unsigned) fs->super->s_max_mnt_count*2))
 381                         reason = 0;
 382         } else if (!broken_system_clock && fs->super->s_checkinterval &&
 383                    (ctx->now < lastcheck)) {
 384                 reason = _(" has filesystem last checked time in the future");
 385                 if (batt)
 386                         reason = 0;
 387         } else if (!broken_system_clock && fs->super->s_checkinterval &&
 388                    ((ctx->now - lastcheck) >=
 389                     ((time_t) fs->super->s_checkinterval))) {
 390                 reason = _(" has gone %u days without being checked");
 391                 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
 392                 if (batt && ((ctx->now - fs->super->s_lastcheck) <
 393                              fs->super->s_checkinterval*2))
 394                         reason = 0;
 395         }
 396         if (reason) {
 397                 log_out(ctx, "%s", ctx->device_name);
 398                 log_out(ctx, reason, reason_arg);
 399                 log_out(ctx, "%s", _(", check forced.\n"));
 400                 return;
 401         }
 402
 403         /*
 404          * Update the global counts from the block group counts.  This
 405          * is needed since modern kernels don't update the global
 406          * counts so as to avoid locking the entire file system.  So
 407          * if the filesystem is not unmounted cleanly, the global
 408          * counts may not be accurate.  Update them here if we can,
 409          * for the benefit of users who might examine the file system
 410          * using dumpe2fs.  (This is for cosmetic reasons only.)
 411          */
 412         clear_problem_context(&pctx);
 413         pctx.ino = fs->super->s_free_inodes_count;
 414         pctx.ino2 = ctx->free_inodes;
 415         if ((pctx.ino != pctx.ino2) &&
 416             !(ctx->options & E2F_OPT_READONLY) &&
 417             fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
 418                 fs->super->s_free_inodes_count = ctx->free_inodes;
 419                 ext2fs_mark_super_dirty(fs);
 420         }
 421         clear_problem_context(&pctx);
 422         pctx.blk = ext2fs_free_blocks_count(fs->super);
 423         pctx.blk2 = ctx->free_blocks;
 424         if ((pctx.blk != pctx.blk2) &&
 425             !(ctx->options & E2F_OPT_READONLY) &&
 426             fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
 427                 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
 428                 ext2fs_mark_super_dirty(fs);
 429         }
 430
 431         /* Print the summary message when we're skipping a full check */
 432         log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
 433                 ctx->device_name,
 434                 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
 435                 fs->super->s_inodes_count,
 436                 ext2fs_blocks_count(fs->super) -
 437                 ext2fs_free_blocks_count(fs->super),
 438                 ext2fs_blocks_count(fs->super));
 439         next_check = 100000;
 440         if (fs->super->s_max_mnt_count > 0) {
 441                 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
 442                 if (next_check <= 0)
 443                         next_check = 1;
 444         }
 445         if (!broken_system_clock && fs->super->s_checkinterval &&
 446             ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
 447                 next_check = 1;
 448         if (next_check <= 5) {
 449                 if (next_check == 1) {
 450                         if (batt)
 451                                 log_out(ctx, "%s",
 452                                         _(" (check deferred; on battery)"));
 453                         else
 454                                 log_out(ctx, "%s",
 455                                         _(" (check after next mount)"));
 456                 } else
 457                         log_out(ctx, _(" (check in %ld mounts)"),
 458                                 next_check);
 459         }
 460         log_out(ctx, "\n");
 461 skip:
 462         ext2fs_close_free(&ctx->fs);
 463         e2fsck_free_context(ctx);
 464         exit(FSCK_OK);
 465 }
 466
 467 /*
 468  * For completion notice
 469  */
 470 struct percent_tbl {
 471         int     max_pass;
 472         int     table[32];
 473 };
 474 static struct percent_tbl e2fsck_tbl = {
 475         5, { 0, 70, 90, 92,  95, 100 }
 476 };
 477 static char bar[128], spaces[128];
 478
 479 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
 480                           int max)
 481 {
 482         float   percent;
 483
 484         if (pass <= 0)
 485                 return 0.0;
 486         if (pass > tbl->max_pass || max == 0)
 487                 return 100.0;
 488         percent = ((float) curr) / ((float) max);
 489         return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
 490                 + tbl->table[pass-1]);
 491 }
 492
 493 void e2fsck_clear_progbar(e2fsck_t ctx)
 494 {
 495         if (!(ctx->flags & E2F_FLAG_PROG_BAR))
 496                 return;
 497
 498         printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
 499                ctx->stop_meta);
 500         fflush(stdout);
 501         ctx->flags &= ~E2F_FLAG_PROG_BAR;
 502 }
 503
 504 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
 505                            unsigned int dpynum)
 506 {
 507         static const char spinner[] = "\\|/-";
 508         int     i;
 509         unsigned int    tick;
 510         struct timeval  tv;
 511         int dpywidth;
 512         int fixed_percent;
 513
 514         if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
 515                 return 0;
 516
 517         /*
 518          * Calculate the new progress position.  If the
 519          * percentage hasn't changed, then we skip out right
 520          * away.
 521          */
 522         fixed_percent = (int) ((10 * percent) + 0.5);
 523         if (ctx->progress_last_percent == fixed_percent)
 524                 return 0;
 525         ctx->progress_last_percent = fixed_percent;
 526
 527         /*
 528          * If we've already updated the spinner once within
 529          * the last 1/8th of a second, no point doing it
 530          * again.
 531          */
 532         gettimeofday(&tv, NULL);
 533         tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
 534         if ((tick == ctx->progress_last_time) &&
 535             (fixed_percent != 0) && (fixed_percent != 1000))
 536                 return 0;
 537         ctx->progress_last_time = tick;
 538
 539         /*
 540          * Advance the spinner, and note that the progress bar
 541          * will be on the screen
 542          */
 543         ctx->progress_pos = (ctx->progress_pos+1) & 3;
 544         ctx->flags |= E2F_FLAG_PROG_BAR;
 545
 546         dpywidth = 66 - strlen(label);
 547         dpywidth = 8 * (dpywidth / 8);
 548         if (dpynum)
 549                 dpywidth -= 8;
 550
 551         i = ((percent * dpywidth) + 50) / 100;
 552         printf("%s%s: |%s%s", ctx->start_meta, label,
 553                bar + (sizeof(bar) - (i+1)),
 554                spaces + (sizeof(spaces) - (dpywidth - i + 1)));
 555         if (fixed_percent == 1000)
 556                 fputc('|', stdout);
 557         else
 558                 fputc(spinner[ctx->progress_pos & 3], stdout);
 559         printf(" %4.1f%%  ", percent);
 560         if (dpynum)
 561                 printf("%u\r", dpynum);
 562         else
 563                 fputs(" \r", stdout);
 564         fputs(ctx->stop_meta, stdout);
 565
 566         if (fixed_percent == 1000)
 567                 e2fsck_clear_progbar(ctx);
 568         fflush(stdout);
 569
 570         return 0;
 571 }
 572
 573 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
 574                                   unsigned long cur, unsigned long max)
 575 {
 576         char buf[1024];
 577         float percent;
 578
 579         if (pass == 0)
 580                 return 0;
 581
 582         if (ctx->progress_fd) {
 583                 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
 584                          pass, cur, max, ctx->device_name);
 585                 write_all(ctx->progress_fd, buf, strlen(buf));
 586         } else {
 587                 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
 588                 e2fsck_simple_progress(ctx, ctx->device_name,
 589                                        percent, 0);
 590         }
 591         return 0;
 592 }
 593
 594 #define PATH_SET "PATH=/sbin"
 595
 596 /*
 597  * Make sure 0,1,2 file descriptors are open, so that we don't open
 598  * the filesystem using the same file descriptor as stdout or stderr.
 599  */
 600 static void reserve_stdio_fds(void)
 601 {
 602         int     fd = 0;
 603
 604         while (fd <= 2) {
 605                 fd = open("/dev/null", O_RDWR);
 606                 if (fd < 0) {
 607                         fprintf(stderr, _("ERROR: Couldn't open "
 608                                 "/dev/null (%s)\n"),
 609                                 strerror(errno));
 610                         break;
 611                 }
 612         }
 613 }
 614
 615 #ifdef HAVE_SIGNAL_H
 616 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
 617 {
 618         e2fsck_t ctx = e2fsck_global_ctx;
 619
 620         if (!ctx)
 621                 return;
 622
 623         ctx->progress = e2fsck_update_progress;
 624 }
 625
 626 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
 627 {
 628         e2fsck_t ctx = e2fsck_global_ctx;
 629
 630         if (!ctx)
 631                 return;
 632
 633         e2fsck_clear_progbar(ctx);
 634         ctx->progress = 0;
 635 }
 636
 637 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
 638 {
 639         e2fsck_t ctx = e2fsck_global_ctx;
 640
 641         if (!ctx)
 642                 exit(FSCK_CANCELED);
 643
 644         ctx->flags |= E2F_FLAG_CANCEL;
 645 }
 646 #endif
 647
 648 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
 649 {
 650         char    *buf, *token, *next, *p, *arg;
 651         int     ea_ver;
 652         int     extended_usage = 0;
 653
 654         buf = string_copy(ctx, opts, 0);
 655         for (token = buf; token && *token; token = next) {
 656                 p = strchr(token, ',');
 657                 next = 0;
 658                 if (p) {
 659                         *p = 0;
 660                         next = p+1;
 661                 }
 662                 arg = strchr(token, '=');
 663                 if (arg) {
 664                         *arg = 0;
 665                         arg++;
 666                 }
 667                 if (strcmp(token, "ea_ver") == 0) {
 668                         if (!arg) {
 669                                 extended_usage++;
 670                                 continue;
 671                         }
 672                         ea_ver = strtoul(arg, &p, 0);
 673                         if (*p ||
 674                             ((ea_ver != 1) && (ea_ver != 2))) {
 675                                 fprintf(stderr, "%s",
 676                                         _("Invalid EA version.\n"));
 677                                 extended_usage++;
 678                                 continue;
 679                         }
 680                         ctx->ext_attr_ver = ea_ver;
 681                 } else if (strcmp(token, "fragcheck") == 0) {
 682                         ctx->options |= E2F_OPT_FRAGCHECK;
 683                         continue;
 684                 } else if (strcmp(token, "journal_only") == 0) {
 685                         if (arg) {
 686                                 extended_usage++;
 687                                 continue;
 688                         }
 689                         ctx->options |= E2F_OPT_JOURNAL_ONLY;
 690                 } else if (strcmp(token, "discard") == 0) {
 691                         ctx->options |= E2F_OPT_DISCARD;
 692                         continue;
 693                 } else if (strcmp(token, "nodiscard") == 0) {
 694                         ctx->options &= ~E2F_OPT_DISCARD;
 695                         continue;
 696                 } else if (strcmp(token, "log_filename") == 0) {
 697                         if (!arg)
 698                                 extended_usage++;
 699                         else
 700                                 ctx->log_fn = string_copy(ctx, arg, 0);
 701                         continue;
 702                 } else {
 703                         fprintf(stderr, _("Unknown extended option: %s\n"),
 704                                 token);
 705                         extended_usage++;
 706                 }
 707         }
 708         free(buf);
 709
 710         if (extended_usage) {
 711                 fputs(("\nExtended options are separated by commas, "
 712                        "and may take an argument which\n"
 713                        "is set off by an equals ('=') sign.  "
 714                        "Valid extended options are:\n"), stderr);
 715                 fputs(("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
 716                 fputs(("\tfragcheck\n"), stderr);
 717                 fputs(("\tjournal_only\n"), stderr);
 718                 fputs(("\tdiscard\n"), stderr);
 719                 fputs(("\tnodiscard\n"), stderr);
 720                 fputc('\n', stderr);
 721                 exit(1);
 722         }
 723 }
 724
 725 static void syntax_err_report(const char *filename, long err, int line_num)
 726 {
 727         fprintf(stderr,
 728                 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
 729                 filename, line_num, error_message(err));
 730         exit(FSCK_ERROR);
 731 }
 732
 733 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
 734
 735 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
 736 {
 737         int             flush = 0;
 738         int             c, fd;
 739 #ifdef MTRACE
 740         extern void     *mallwatch;
 741 #endif
 742         e2fsck_t        ctx;
 743         errcode_t       retval;
 744 #ifdef HAVE_SIGNAL_H
 745         struct sigaction        sa;
 746 #endif
 747         char            *extended_opts = 0;
 748         char            *cp;
 749         int             res;            /* result of sscanf */
 750 #ifdef CONFIG_JBD_DEBUG
 751         char            *jbd_debug;
 752 #endif
 753
 754         retval = e2fsck_allocate_context(&ctx);
 755         if (retval)
 756                 return retval;
 757
 758         *ret_ctx = ctx;
 759         e2fsck_global_ctx = ctx;
 760
 761         setvbuf(stdout, NULL, _IONBF, BUFSIZ);
 762         setvbuf(stderr, NULL, _IONBF, BUFSIZ);
 763         if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
 764                 ctx->interactive = 1;
 765         } else {
 766                 ctx->start_meta[0] = '\001';
 767                 ctx->stop_meta[0] = '\002';
 768         }
 769         memset(bar, '=', sizeof(bar)-1);
 770         memset(spaces, ' ', sizeof(spaces)-1);
 771         add_error_table(&et_ext2_error_table);
 772         add_error_table(&et_prof_error_table);
 773         blkid_get_cache(&ctx->blkid, NULL);
 774
 775         if (argc && *argv)
 776                 ctx->program_name = *argv;
 777         else
 778                 ctx->program_name = "e2fsck";
 779
 780         while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
 781                 switch (c) {
 782                 case 'C':
 783                         ctx->progress = e2fsck_update_progress;
 784                         res = sscanf(optarg, "%d", &ctx->progress_fd);
 785                         if (res != 1)
 786                                 goto sscanf_err;
 787
 788                         if (ctx->progress_fd < 0) {
 789                                 ctx->progress = 0;
 790                                 ctx->progress_fd = ctx->progress_fd * -1;
 791                         }
 792                         if (!ctx->progress_fd)
 793                                 break;
 794                         /* Validate the file descriptor to avoid disasters */
 795                         fd = dup(ctx->progress_fd);
 796                         if (fd < 0) {
 797                                 fprintf(stderr,
 798                                 _("Error validating file descriptor %d: %s\n"),
 799                                         ctx->progress_fd,
 800                                         error_message(errno));
 801                                 fatal_error(ctx,
 802                         _("Invalid completion information file descriptor"));
 803                         } else
 804                                 close(fd);
 805                         break;
 806                 case 'D':
 807                         ctx->options |= E2F_OPT_COMPRESS_DIRS;
 808                         break;
 809                 case 'E':
 810                         extended_opts = optarg;
 811                         break;
 812                 case 'p':
 813                 case 'a':
 814                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
 815                         conflict_opt:
 816                                 fatal_error(ctx,
 817         _("Only one of the options -p/-a, -n or -y may be specified."));
 818                         }
 819                         ctx->options |= E2F_OPT_PREEN;
 820                         break;
 821                 case 'n':
 822                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
 823                                 goto conflict_opt;
 824                         ctx->options |= E2F_OPT_NO;
 825                         break;
 826                 case 'y':
 827                         if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
 828                                 goto conflict_opt;
 829                         ctx->options |= E2F_OPT_YES;
 830                         break;
 831                 case 't':
 832 #ifdef RESOURCE_TRACK
 833                         if (ctx->options & E2F_OPT_TIME)
 834                                 ctx->options |= E2F_OPT_TIME2;
 835                         else
 836                                 ctx->options |= E2F_OPT_TIME;
 837 #else
 838                         fprintf(stderr, _("The -t option is not "
 839                                 "supported on this version of e2fsck.\n"));
 840 #endif
 841                         break;
 842                 case 'c':
 843                         if (cflag++)
 844                                 ctx->options |= E2F_OPT_WRITECHECK;
 845                         ctx->options |= E2F_OPT_CHECKBLOCKS;
 846                         break;
 847                 case 'r':
 848                         /* What we do by default, anyway! */
 849                         break;
 850                 case 'b':
 851                         res = sscanf(optarg, "%llu", &ctx->use_superblock);
 852                         if (res != 1)
 853                                 goto sscanf_err;
 854                         ctx->flags |= E2F_FLAG_SB_SPECIFIED;
 855                         break;
 856                 case 'B':
 857                         ctx->blocksize = atoi(optarg);
 858                         break;
 859                 case 'I':
 860                         res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
 861                         if (res != 1)
 862                                 goto sscanf_err;
 863                         break;
 864                 case 'j':
 865                         ctx->journal_name = blkid_get_devname(ctx->blkid,
 866                                                               optarg, NULL);
 867                         if (!ctx->journal_name) {
 868                                 com_err(ctx->program_name, 0,
 869                                         _("Unable to resolve '%s'"),
 870                                         optarg);
 871                                 fatal_error(ctx, 0);
 872                         }
 873                         break;
 874                 case 'P':
 875                         res = sscanf(optarg, "%d", &ctx->process_inode_size);
 876                         if (res != 1)
 877                                 goto sscanf_err;
 878                         break;
 879                 case 'L':
 880                         replace_bad_blocks++;
 881                 case 'l':
 882                         if (bad_blocks_file)
 883                                 free(bad_blocks_file);
 884                         bad_blocks_file = string_copy(ctx, optarg, 0);
 885                         break;
 886                 case 'd':
 887                         ctx->options |= E2F_OPT_DEBUG;
 888                         break;
 889                 case 'f':
 890                         ctx->options |= E2F_OPT_FORCE;
 891                         break;
 892                 case 'F':
 893                         flush = 1;
 894                         break;
 895                 case 'v':
 896                         verbose = 1;
 897                         break;
 898                 case 'V':
 899                         show_version_only = 1;
 900                         break;
 901 #ifdef MTRACE
 902                 case 'M':
 903                         mallwatch = (void *) strtol(optarg, NULL, 0);
 904                         break;
 905 #endif
 906                 case 'N':
 907                         ctx->device_name = string_copy(ctx, optarg, 0);
 908                         break;
 909                 case 'k':
 910                         keep_bad_blocks++;
 911                         break;
 912                 default:
 913                         usage(ctx);
 914                 }
 915         if (show_version_only)
 916                 return 0;
 917         if (optind != argc - 1)
 918                 usage(ctx);
 919         if ((ctx->options & E2F_OPT_NO) &&
 920             (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
 921                 com_err(ctx->program_name, 0, "%s",
 922                         _("The -n and -D options are incompatible."));
 923                 fatal_error(ctx, 0);
 924         }
 925         if ((ctx->options & E2F_OPT_NO) && cflag) {
 926                 com_err(ctx->program_name, 0, "%s",
 927                         _("The -n and -c options are incompatible."));
 928                 fatal_error(ctx, 0);
 929         }
 930         if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
 931                 com_err(ctx->program_name, 0, "%s",
 932                         _("The -n and -l/-L options are incompatible."));
 933                 fatal_error(ctx, 0);
 934         }
 935         if (ctx->options & E2F_OPT_NO)
 936                 ctx->options |= E2F_OPT_READONLY;
 937
 938         ctx->io_options = strchr(argv[optind], '?');
 939         if (ctx->io_options)
 940                 *ctx->io_options++ = 0;
 941         ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
 942         if (!ctx->filesystem_name) {
 943                 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
 944                         argv[optind]);
 945                 fatal_error(ctx, 0);
 946         }
 947         if (extended_opts)
 948                 parse_extended_opts(ctx, extended_opts);
 949
 950         if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
 951                 config_fn[0] = cp;
 952         profile_set_syntax_err_cb(syntax_err_report);
 953         profile_init(config_fn, &ctx->profile);
 954
 955         profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
 956                             &c);
 957         if (c)
 958                 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
 959         profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
 960                             &c);
 961         if (c)
 962                 verbose = 1;
 963
 964         /* Turn off discard in read-only mode */
 965         if ((ctx->options & E2F_OPT_NO) &&
 966             (ctx->options & E2F_OPT_DISCARD))
 967                 ctx->options &= ~E2F_OPT_DISCARD;
 968
 969         if (flush) {
 970                 fd = open(ctx->filesystem_name, O_RDONLY, 0);
 971                 if (fd < 0) {
 972                         com_err("open", errno,
 973                                 _("while opening %s for flushing"),
 974                                 ctx->filesystem_name);
 975                         fatal_error(ctx, 0);
 976                 }
 977                 if ((retval = ext2fs_sync_device(fd, 1))) {
 978                         com_err("ext2fs_sync_device", retval,
 979                                 _("while trying to flush %s"),
 980                                 ctx->filesystem_name);
 981                         fatal_error(ctx, 0);
 982                 }
 983                 close(fd);
 984         }
 985         if (cflag && bad_blocks_file) {
 986                 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
 987                                         "be both used at the same time.\n"));
 988                 exit(FSCK_USAGE);
 989         }
 990 #ifdef HAVE_SIGNAL_H
 991         /*
 992          * Set up signal action
 993          */
 994         memset(&sa, 0, sizeof(struct sigaction));
 995         sa.sa_handler = signal_cancel;
 996         sigaction(SIGINT, &sa, 0);
 997         sigaction(SIGTERM, &sa, 0);
 998 #ifdef SA_RESTART
 999         sa.sa_flags = SA_RESTART;
1000 #endif
1001         sa.sa_handler = signal_progress_on;
1002         sigaction(SIGUSR1, &sa, 0);
1003         sa.sa_handler = signal_progress_off;
1004         sigaction(SIGUSR2, &sa, 0);
1005 #endif
1006
1007         /* Update our PATH to include /sbin if we need to run badblocks  */
1008         if (cflag) {
1009                 char *oldpath = getenv("PATH");
1010                 char *newpath;
1011                 int len = sizeof(PATH_SET) + 1;
1012
1013                 if (oldpath)
1014                         len += strlen(oldpath);
1015
1016                 newpath = malloc(len);
1017                 if (!newpath)
1018                         fatal_error(ctx, "Couldn't malloc() newpath");
1019                 strcpy(newpath, PATH_SET);
1020
1021                 if (oldpath) {
1022                         strcat(newpath, ":");
1023                         strcat(newpath, oldpath);
1024                 }
1025                 putenv(newpath);
1026         }
1027 #ifdef CONFIG_JBD_DEBUG
1028         jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1029         if (jbd_debug) {
1030                 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1031                 if (res != 1) {
1032                         fprintf(stderr,
1033                                 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1034                                 jbd_debug);
1035                         exit (1);
1036                 }
1037         }
1038 #endif
1039         return 0;
1040
1041 sscanf_err:
1042         fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1043                 c, optarg);
1044         exit (1);
1045 }
1046
1047 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1048                              ext2_filsys *ret_fs)
1049 {
1050         errcode_t retval;
1051
1052         *ret_fs = NULL;
1053         if (ctx->superblock && ctx->blocksize) {
1054                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1055                                       flags, ctx->superblock, ctx->blocksize,
1056                                       io_ptr, ret_fs);
1057         } else if (ctx->superblock) {
1058                 int blocksize;
1059                 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1060                      blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1061                         if (*ret_fs) {
1062                                 ext2fs_free(*ret_fs);
1063                                 *ret_fs = NULL;
1064                         }
1065                         retval = ext2fs_open2(ctx->filesystem_name,
1066                                               ctx->io_options, flags,
1067                                               ctx->superblock, blocksize,
1068                                               io_ptr, ret_fs);
1069                         if (!retval)
1070                                 break;
1071                 }
1072         } else
1073                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1074                                       flags, 0, 0, io_ptr, ret_fs);
1075
1076         if (retval == 0) {
1077                 (*ret_fs)->priv_data = ctx;
1078                 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1079                                        "default", NULL);
1080         }
1081         return retval;
1082 }
1083
1084 static const char *my_ver_string = E2FSPROGS_VERSION;
1085 static const char *my_ver_date = E2FSPROGS_DATE;
1086
1087 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1088 {
1089         struct mmp_struct *mmp_s;
1090         unsigned int mmp_check_interval;
1091         errcode_t retval = 0;
1092         struct problem_context pctx;
1093         unsigned int wait_time = 0;
1094
1095         clear_problem_context(&pctx);
1096         if (fs->mmp_buf == NULL) {
1097                 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1098                 if (retval)
1099                         goto check_error;
1100         }
1101
1102         retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1103         if (retval)
1104                 goto check_error;
1105
1106         mmp_s = fs->mmp_buf;
1107
1108         mmp_check_interval = fs->super->s_mmp_update_interval;
1109         if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1110                 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1111
1112         /*
1113          * If check_interval in MMP block is larger, use that instead of
1114          * check_interval from the superblock.
1115          */
1116         if (mmp_s->mmp_check_interval > mmp_check_interval)
1117                 mmp_check_interval = mmp_s->mmp_check_interval;
1118
1119         wait_time = mmp_check_interval * 2 + 1;
1120
1121         if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1122                 retval = 0;
1123         else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1124                 retval = EXT2_ET_MMP_FSCK_ON;
1125         else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1126                 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1127
1128         if (retval)
1129                 goto check_error;
1130
1131         /* Print warning if e2fck will wait for more than 20 secs. */
1132         if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1133                 log_out(ctx, _("MMP interval is %u seconds and total wait "
1134                                "time is %u seconds. Please wait...\n"),
1135                         mmp_check_interval, wait_time * 2);
1136         }
1137
1138         return 0;
1139
1140 check_error:
1141
1142         if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1143                 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1144                         fs->super->s_mmp_block = 0;
1145                         ext2fs_mark_super_dirty(fs);
1146                         retval = 0;
1147                 }
1148         } else if (retval == EXT2_ET_MMP_FAILED) {
1149                 com_err(ctx->program_name, retval, "%s",
1150                         _("while checking MMP block"));
1151                 dump_mmp_msg(fs->mmp_buf, NULL);
1152         } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1153                    retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1154                 com_err(ctx->program_name, retval, "%s",
1155                         _("while checking MMP block"));
1156                 dump_mmp_msg(fs->mmp_buf,
1157                              _("If you are sure the filesystem is not "
1158                                "in use on any node, run:\n"
1159                                "'tune2fs -f -E clear_mmp {device}'\n"));
1160         } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1161                 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1162                         ext2fs_mmp_clear(fs);
1163                         retval = 0;
1164                 }
1165         } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1166                 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1167                         ext2fs_mmp_clear(fs);
1168                         retval = 0;
1169                 }
1170         } else
1171                 com_err(ctx->program_name, retval, "%s",
1172                         _("while reading MMP block"));
1173         return retval;
1174 }
1175
1176 int main (int argc, char *argv[])
1177 {
1178         errcode_t       retval = 0, retval2 = 0, orig_retval = 0;
1179         int             exit_value = FSCK_OK;
1180         ext2_filsys     fs = 0;
1181         io_manager      io_ptr;
1182         struct ext2_super_block *sb;
1183         const char      *lib_ver_date;
1184         int             my_ver, lib_ver;
1185         e2fsck_t        ctx;
1186         blk64_t         orig_superblock;
1187         struct problem_context pctx;
1188         int flags, run_result, was_changed;
1189         int journal_size;
1190         int sysval, sys_page_size = 4096;
1191         int old_bitmaps;
1192         __u32 features[3];
1193         char *cp;
1194         int qtype = -99;  /* quota type */
1195
1196         clear_problem_context(&pctx);
1197         sigcatcher_setup();
1198 #ifdef MTRACE
1199         mtrace();
1200 #endif
1201 #ifdef MCHECK
1202         mcheck(0);
1203 #endif
1204 #ifdef ENABLE_NLS
1205         setlocale(LC_MESSAGES, "");
1206         setlocale(LC_CTYPE, "");
1207         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1208         textdomain(NLS_CAT_NAME);
1209         set_com_err_gettext(gettext);
1210 #endif
1211         my_ver = ext2fs_parse_version_string(my_ver_string);
1212         lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1213         if (my_ver > lib_ver) {
1214                 fprintf( stderr, "%s",
1215                          _("Error: ext2fs library version out of date!\n"));
1216                 show_version_only++;
1217         }
1218
1219         retval = PRS(argc, argv, &ctx);
1220         if (retval) {
1221                 com_err("e2fsck", retval, "%s",
1222                         _("while trying to initialize program"));
1223                 exit(FSCK_ERROR);
1224         }
1225         reserve_stdio_fds();
1226
1227         set_up_logging(ctx);
1228         if (ctx->logf) {
1229                 int i;
1230                 fputs("E2fsck run: ", ctx->logf);
1231                 for (i = 0; i < argc; i++) {
1232                         if (i)
1233                                 fputc(' ', ctx->logf);
1234                         fputs(argv[i], ctx->logf);
1235                 }
1236                 fputc('\n', ctx->logf);
1237         }
1238
1239         init_resource_track(&ctx->global_rtrack, NULL);
1240         if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1241                 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1242                          my_ver_date);
1243
1244         if (show_version_only) {
1245                 log_err(ctx, _("\tUsing %s, %s\n"),
1246                         error_message(EXT2_ET_BASE), lib_ver_date);
1247                 exit(FSCK_OK);
1248         }
1249
1250         check_mount(ctx);
1251
1252         if (!(ctx->options & E2F_OPT_PREEN) &&
1253             !(ctx->options & E2F_OPT_NO) &&
1254             !(ctx->options & E2F_OPT_YES)) {
1255                 if (!ctx->interactive)
1256                         fatal_error(ctx,
1257                                     _("need terminal for interactive repairs"));
1258         }
1259         ctx->superblock = ctx->use_superblock;
1260
1261         flags = EXT2_FLAG_SKIP_MMP;
1262 restart:
1263 #ifdef CONFIG_TESTIO_DEBUG
1264         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1265                 io_ptr = test_io_manager;
1266                 test_io_backing_manager = unix_io_manager;
1267         } else
1268 #endif
1269                 io_ptr = unix_io_manager;
1270         flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1271         profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1272                             &old_bitmaps);
1273         if (!old_bitmaps)
1274                 flags |= EXT2_FLAG_64BITS;
1275         if ((ctx->options & E2F_OPT_READONLY) == 0) {
1276                 flags |= EXT2_FLAG_RW;
1277                 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1278                       ctx->mount_flags & EXT2_MF_READONLY))
1279                         flags |= EXT2_FLAG_EXCLUSIVE;
1280                 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1281                     (ctx->options & E2F_OPT_FORCE))
1282                         flags &= ~EXT2_FLAG_EXCLUSIVE;
1283         }
1284
1285         ctx->openfs_flags = flags;
1286         retval = try_open_fs(ctx, flags, io_ptr, &fs);
1287
1288         if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1289             !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1290             ((retval == EXT2_ET_BAD_MAGIC) ||
1291              (retval == EXT2_ET_SB_CSUM_INVALID) ||
1292              (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1293              ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1294                 if (retval) {
1295                         pctx.errcode = retval;
1296                         fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1297                 }
1298                 if (retval2) {
1299                         pctx.errcode = retval2;
1300                         fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1301                 }
1302                 pctx.errcode = 0;
1303                 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1304                         retval = retval2;
1305                         goto failure;
1306                 }
1307                 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1308                         ext2fs_free(fs);
1309                         fs = NULL;
1310                 }
1311                 if (!fs || (fs->group_desc_count > 1)) {
1312                         log_out(ctx, _("%s: %s trying backup blocks...\n"),
1313                                 ctx->program_name,
1314                                 retval ? _("Superblock invalid,") :
1315                                 _("Group descriptors look bad..."));
1316                         orig_superblock = ctx->superblock;
1317                         get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1318                         if (fs)
1319                                 ext2fs_close_free(&fs);
1320                         orig_retval = retval;
1321                         retval = try_open_fs(ctx, flags, io_ptr, &fs);
1322                         if ((orig_retval == 0) && retval != 0) {
1323                                 if (fs)
1324                                         ext2fs_close_free(&fs);
1325                                 log_out(ctx, _("%s: %s while using the "
1326                                                "backup blocks"),
1327                                         ctx->program_name,
1328                                         error_message(retval));
1329                                 log_out(ctx, _("%s: going back to original "
1330                                                "superblock\n"),
1331                                         ctx->program_name);
1332                                 ctx->superblock = orig_superblock;
1333                                 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1334                         }
1335                 }
1336         }
1337         if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1338              (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1339             fs && fs->super) {
1340                 sb = fs->super;
1341                 features[0] = (sb->s_feature_compat &
1342                                ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1343                 features[1] = (sb->s_feature_incompat &
1344                                ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1345                 features[2] = (sb->s_feature_ro_compat &
1346                                ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1347                 if (features[0] || features[1] || features[2])
1348                         goto print_unsupp_features;
1349         }
1350 failure:
1351         if (retval) {
1352                 if (orig_retval)
1353                         retval = orig_retval;
1354                 com_err(ctx->program_name, retval, _("while trying to open %s"),
1355                         ctx->filesystem_name);
1356                 if (retval == EXT2_ET_REV_TOO_HIGH) {
1357                         log_out(ctx, "%s",
1358                                 _("The filesystem revision is apparently "
1359                                   "too high for this version of e2fsck.\n"
1360                                   "(Or the filesystem superblock "
1361                                   "is corrupt)\n\n"));
1362                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1363                 } else if (retval == EXT2_ET_SHORT_READ)
1364                         log_out(ctx, "%s",
1365                                 _("Could this be a zero-length partition?\n"));
1366                 else if ((retval == EPERM) || (retval == EACCES))
1367                         log_out(ctx, _("You must have %s access to the "
1368                                        "filesystem or be root\n"),
1369                                (ctx->options & E2F_OPT_READONLY) ?
1370                                "r/o" : "r/w");
1371                 else if (retval == ENXIO)
1372                         log_out(ctx, "%s",
1373                                 _("Possibly non-existent or swap device?\n"));
1374                 else if (retval == EBUSY)
1375                         log_out(ctx, "%s", _("Filesystem mounted or opened "
1376                                          "exclusively by another program?\n"));
1377                 else if (retval == ENOENT)
1378                         log_out(ctx, "%s",
1379                                 _("Possibly non-existent device?\n"));
1380 #ifdef EROFS
1381                 else if (retval == EROFS)
1382                         log_out(ctx, "%s", _("Disk write-protected; use the "
1383                                              "-n option to do a read-only\n"
1384                                              "check of the device.\n"));
1385 #endif
1386                 else {
1387                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1388                         if (retval == EXT2_ET_BAD_MAGIC)
1389                                 check_plausibility(ctx->filesystem_name,
1390                                                    CHECK_FS_EXIST, NULL);
1391                 }
1392                 fatal_error(ctx, 0);
1393         }
1394         /*
1395          * We only update the master superblock because (a) paranoia;
1396          * we don't want to corrupt the backup superblocks, and (b) we
1397          * don't need to update the mount count and last checked
1398          * fields in the backup superblock (the kernel doesn't update
1399          * the backup superblocks anyway).  With newer versions of the
1400          * library this flag is set by ext2fs_open2(), but we set this
1401          * here just to be sure.  (No, we don't support e2fsck running
1402          * with some other libext2fs than the one that it was shipped
1403          * with, but just in case....)
1404          */
1405         fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1406
1407         if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1408                 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1409                 int need_restart = 0;
1410
1411                 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1412                                                        blocksize,
1413                                                        &ctx->num_blocks);
1414                 /*
1415                  * The floppy driver refuses to allow anyone else to
1416                  * open the device if has been opened with O_EXCL;
1417                  * this is unlike other block device drivers in Linux.
1418                  * To handle this, we close the filesystem and then
1419                  * reopen the filesystem after we get the device size.
1420                  */
1421                 if (pctx.errcode == EBUSY) {
1422                         ext2fs_close_free(&fs);
1423                         need_restart++;
1424                         pctx.errcode =
1425                                 ext2fs_get_device_size2(ctx->filesystem_name,
1426                                                         blocksize,
1427                                                         &ctx->num_blocks);
1428                 }
1429                 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1430                         ctx->num_blocks = 0;
1431                 else if (pctx.errcode) {
1432                         fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1433                         ctx->flags |= E2F_FLAG_ABORT;
1434                         fatal_error(ctx, 0);
1435                 }
1436                 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1437                 if (need_restart)
1438                         goto restart;
1439         }
1440
1441         ctx->fs = fs;
1442         fs->now = ctx->now;
1443         sb = fs->super;
1444
1445         if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1446                 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1447                         _("while trying to open %s"),
1448                         ctx->filesystem_name);
1449         get_newer:
1450                 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1451         }
1452
1453         /*
1454          * Set the device name, which is used whenever we print error
1455          * or informational messages to the user.
1456          */
1457         if (ctx->device_name == 0 &&
1458             (sb->s_volume_name[0] != 0)) {
1459                 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1460                                                sizeof(sb->s_volume_name));
1461         }
1462         if (ctx->device_name == 0)
1463                 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1464         for (cp = ctx->device_name; *cp; cp++)
1465                 if (isspace(*cp) || *cp == ':')
1466                         *cp = '_';
1467
1468         ehandler_init(fs->io);
1469
1470         if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) &&
1471             (flags & EXT2_FLAG_SKIP_MMP)) {
1472                 if (e2fsck_check_mmp(fs, ctx))
1473                         fatal_error(ctx, 0);
1474
1475                 /*
1476                  * Restart in order to reopen fs but this time start mmp.
1477                  */
1478                 ext2fs_close_free(&ctx->fs);
1479                 flags &= ~EXT2_FLAG_SKIP_MMP;
1480                 goto restart;
1481         }
1482
1483         if (ctx->logf)
1484                 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1485                         e2p_uuid2str(sb->s_uuid));
1486
1487         /*
1488          * Make sure the ext3 superblock fields are consistent.
1489          */
1490         retval = e2fsck_check_ext3_journal(ctx);
1491         if (retval) {
1492                 com_err(ctx->program_name, retval,
1493                         _("while checking ext3 journal for %s"),
1494                         ctx->device_name);
1495                 fatal_error(ctx, 0);
1496         }
1497
1498         /*
1499          * Check to see if we need to do ext3-style recovery.  If so,
1500          * do it, and then restart the fsck.
1501          */
1502         if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
1503                 if (ctx->options & E2F_OPT_READONLY) {
1504                         log_out(ctx, "%s",
1505                                 _("Warning: skipping journal recovery because "
1506                                   "doing a read-only filesystem check.\n"));
1507                         io_channel_flush(ctx->fs->io);
1508                 } else {
1509                         if (ctx->flags & E2F_FLAG_RESTARTED) {
1510                                 /*
1511                                  * Whoops, we attempted to run the
1512                                  * journal twice.  This should never
1513                                  * happen, unless the hardware or
1514                                  * device driver is being bogus.
1515                                  */
1516                                 com_err(ctx->program_name, 0,
1517                                         _("unable to set superblock flags "
1518                                           "on %s\n"), ctx->device_name);
1519                                 fatal_error(ctx, 0);
1520                         }
1521                         retval = e2fsck_run_ext3_journal(ctx);
1522                         if (retval) {
1523                                 com_err(ctx->program_name, retval,
1524                                 _("while recovering ext3 journal of %s"),
1525                                         ctx->device_name);
1526                                 fatal_error(ctx, 0);
1527                         }
1528                         ext2fs_close_free(&ctx->fs);
1529                         ctx->flags |= E2F_FLAG_RESTARTED;
1530                         goto restart;
1531                 }
1532         }
1533
1534         /*
1535          * Check for compatibility with the feature sets.  We need to
1536          * be more stringent than ext2fs_open().
1537          */
1538         features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1539         features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1540         features[2] = (sb->s_feature_ro_compat &
1541                        ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1542 print_unsupp_features:
1543         if (features[0] || features[1] || features[2]) {
1544                 int     i, j;
1545                 __u32   *mask = features, m;
1546
1547                 log_err(ctx, _("%s has unsupported feature(s):"),
1548                         ctx->filesystem_name);
1549
1550                 for (i=0; i <3; i++,mask++) {
1551                         for (j=0,m=1; j < 32; j++, m<<=1) {
1552                                 if (*mask & m)
1553                                         log_err(ctx, " %s",
1554                                                 e2p_feature2string(i, m));
1555                         }
1556                 }
1557                 log_err(ctx, "\n");
1558                 goto get_newer;
1559         }
1560 #ifdef ENABLE_COMPRESSION
1561         if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
1562                 log_err(ctx, _("%s: warning: compression support "
1563                                "is experimental.\n"),
1564                         ctx->program_name);
1565 #endif
1566 #ifndef ENABLE_HTREE
1567         if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
1568                 log_err(ctx, _("%s: e2fsck not compiled with HTREE support,\n\t"
1569                           "but filesystem %s has HTREE directories.\n"),
1570                         ctx->program_name, ctx->device_name);
1571                 goto get_newer;
1572         }
1573 #endif
1574
1575         /*
1576          * If the user specified a specific superblock, presumably the
1577          * master superblock has been trashed.  So we mark the
1578          * superblock as dirty, so it can be written out.
1579          */
1580         if (ctx->superblock &&
1581             !(ctx->options & E2F_OPT_READONLY))
1582                 ext2fs_mark_super_dirty(fs);
1583
1584         /*
1585          * Calculate the number of filesystem blocks per pagesize.  If
1586          * fs->blocksize > page_size, set the number of blocks per
1587          * pagesize to 1 to avoid division by zero errors.
1588          */
1589 #ifdef _SC_PAGESIZE
1590         sysval = sysconf(_SC_PAGESIZE);
1591         if (sysval > 0)
1592                 sys_page_size = sysval;
1593 #endif /* _SC_PAGESIZE */
1594         ctx->blocks_per_page = sys_page_size / fs->blocksize;
1595         if (ctx->blocks_per_page == 0)
1596                 ctx->blocks_per_page = 1;
1597
1598         if (ctx->superblock)
1599                 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1600         ext2fs_mark_valid(fs);
1601         check_super_block(ctx);
1602         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1603                 fatal_error(ctx, 0);
1604         check_if_skip(ctx);
1605         check_resize_inode(ctx);
1606         if (bad_blocks_file)
1607                 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1608         else if (cflag)
1609                 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1610         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1611                 fatal_error(ctx, 0);
1612
1613         /*
1614          * Mark the system as valid, 'til proven otherwise
1615          */
1616         ext2fs_mark_valid(fs);
1617
1618         retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1619         if (retval) {
1620                 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1621                         ctx->program_name, error_message(retval));
1622                 preenhalt(ctx);
1623                 log_out(ctx, "%s", _("This doesn't bode well, "
1624                                      "but we'll try to go on...\n"));
1625         }
1626
1627         /*
1628          * Save the journal size in megabytes.
1629          * Try and use the journal size from the backup else let e2fsck
1630          * find the default journal size.
1631          */
1632         if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1633                 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1634                                (sb->s_jnl_blocks[16] >> 20);
1635         else
1636                 journal_size = -1;
1637
1638         if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA) {
1639                 /* Quotas were enabled. Do quota accounting during fsck. */
1640                 if ((sb->s_usr_quota_inum && sb->s_grp_quota_inum) ||
1641                     (!sb->s_usr_quota_inum && !sb->s_grp_quota_inum))
1642                         qtype = -1;
1643                 else
1644                         qtype = sb->s_usr_quota_inum ? USRQUOTA : GRPQUOTA;
1645
1646                 quota_init_context(&ctx->qctx, ctx->fs, qtype);
1647         }
1648
1649         run_result = e2fsck_run(ctx);
1650         e2fsck_clear_progbar(ctx);
1651
1652         if (!ctx->invalid_bitmaps &&
1653             (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1654                 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1655                         if (journal_size < 1024)
1656                                 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1657                         if (journal_size < 0) {
1658                                 fs->super->s_feature_compat &=
1659                                         ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1660                                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1661                                 log_out(ctx, "%s: Couldn't determine "
1662                                         "journal size\n", ctx->program_name);
1663                                 goto no_journal;
1664                         }
1665                         log_out(ctx, _("Creating journal (%d blocks): "),
1666                                journal_size);
1667                         fflush(stdout);
1668                         retval = ext2fs_add_journal_inode(fs,
1669                                                           journal_size, 0);
1670                         if (retval) {
1671                                 log_out(ctx, "%s: while trying to create "
1672                                         "journal\n", error_message(retval));
1673                                 goto no_journal;
1674                         }
1675                         log_out(ctx, "%s", _(" Done.\n"));
1676                         log_out(ctx, "%s",
1677                                 _("\n*** journal has been regenerated ***\n"));
1678                 }
1679         }
1680 no_journal:
1681
1682         if (ctx->qctx) {
1683                 int i, needs_writeout;
1684                 for (i = 0; i < MAXQUOTAS; i++) {
1685                         if (qtype != -1 && qtype != i)
1686                                 continue;
1687                         needs_writeout = 0;
1688                         pctx.num = i;
1689                         retval = quota_compare_and_update(ctx->qctx, i,
1690                                                           &needs_writeout);
1691                         if ((retval || needs_writeout) &&
1692                             fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx))
1693                                 quota_write_inode(ctx->qctx, i);
1694                 }
1695                 quota_release_context(&ctx->qctx);
1696         }
1697
1698         if (run_result == E2F_FLAG_RESTART) {
1699                 log_out(ctx, "%s",
1700                         _("Restarting e2fsck from the beginning...\n"));
1701                 retval = e2fsck_reset_context(ctx);
1702                 if (retval) {
1703                         com_err(ctx->program_name, retval, "%s",
1704                                 _("while resetting context"));
1705                         fatal_error(ctx, 0);
1706                 }
1707                 ext2fs_close_free(&ctx->fs);
1708                 goto restart;
1709         }
1710         if (run_result & E2F_FLAG_ABORT)
1711                 fatal_error(ctx, _("aborted"));
1712
1713 #ifdef MTRACE
1714         mtrace_print("Cleanup");
1715 #endif
1716         was_changed = ext2fs_test_changed(fs);
1717         if (run_result & E2F_FLAG_CANCEL) {
1718                 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1719                         ctx->device_name : ctx->filesystem_name);
1720                 exit_value |= FSCK_CANCELED;
1721         } else if (!(ctx->options & E2F_OPT_READONLY)) {
1722                 if (ext2fs_test_valid(fs)) {
1723                         if (!(sb->s_state & EXT2_VALID_FS))
1724                                 exit_value |= FSCK_NONDESTRUCT;
1725                         sb->s_state = EXT2_VALID_FS;
1726                         if (check_backup_super_block(ctx))
1727                                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1728                 } else
1729                         sb->s_state &= ~EXT2_VALID_FS;
1730                 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1731                         sb->s_lastcheck = ctx->now;
1732                 sb->s_mnt_count = 0;
1733                 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1734                 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1735                 if (pctx.errcode)
1736                         fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1737                 ext2fs_mark_super_dirty(fs);
1738         }
1739
1740         e2fsck_write_bitmaps(ctx);
1741         if (fs->flags & EXT2_FLAG_DIRTY) {
1742                 pctx.errcode = ext2fs_flush(ctx->fs);
1743                 if (pctx.errcode)
1744                         fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1745         }
1746         pctx.errcode = io_channel_flush(ctx->fs->io);
1747         if (pctx.errcode)
1748                 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1749
1750         if (was_changed) {
1751                 exit_value |= FSCK_NONDESTRUCT;
1752                 if (!(ctx->options & E2F_OPT_PREEN))
1753                         log_out(ctx, _("\n%s: ***** FILE SYSTEM WAS "
1754                                        "MODIFIED *****\n"),
1755                                 ctx->device_name);
1756                 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1757                         log_out(ctx, _("%s: ***** REBOOT LINUX *****\n"),
1758                                 ctx->device_name);
1759                         exit_value |= FSCK_REBOOT;
1760                 }
1761         }
1762         if (!ext2fs_test_valid(fs) ||
1763             ((exit_value & FSCK_CANCELED) &&
1764              (sb->s_state & EXT2_ERROR_FS))) {
1765                 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
1766                                "errors **********\n\n"), ctx->device_name);
1767                 exit_value |= FSCK_UNCORRECTED;
1768                 exit_value &= ~FSCK_NONDESTRUCT;
1769         }
1770         if (exit_value & FSCK_CANCELED) {
1771                 int     allow_cancellation;
1772
1773                 profile_get_boolean(ctx->profile, "options",
1774                                     "allow_cancellation", 0, 0,
1775                                     &allow_cancellation);
1776                 exit_value &= ~FSCK_NONDESTRUCT;
1777                 if (allow_cancellation && ext2fs_test_valid(fs) &&
1778                     (sb->s_state & EXT2_VALID_FS) &&
1779                     !(sb->s_state & EXT2_ERROR_FS))
1780                         exit_value = 0;
1781         } else
1782                 show_stats(ctx);
1783
1784         print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
1785
1786         ext2fs_close_free(&ctx->fs);
1787         free(ctx->journal_name);
1788
1789         e2fsck_free_context(ctx);
1790         remove_error_table(&et_ext2_error_table);
1791         remove_error_table(&et_prof_error_table);
1792         return exit_value;
1793 }