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 #include "config.h" 13 #include <stdio.h> 14 #ifdef HAVE_STDLIB_H 15 #include <stdlib.h> 16 #endif 17 #include <string.h> 18 #include <fcntl.h> 19 #include <ctype.h> 20 #include <time.h> 21 #ifdef HAVE_SIGNAL_H 22 #include <signal.h> 23 #endif 24 #ifdef HAVE_GETOPT_H 25 #include <getopt.h> 26 #else 27 extern char *optarg; 28 extern int optind; 29 #endif 30 #include <unistd.h> 31 #ifdef HAVE_ERRNO_H 32 #include <errno.h> 33 #endif 34 #ifdef HAVE_SYS_IOCTL_H 35 #include <sys/ioctl.h> 36 #endif 37 #ifdef HAVE_MALLOC_H 38 #include <stdlib.h> 39 #endif 40 #ifdef HAVE_SYS_TYPES_H 41 #include <sys/types.h> 42 #endif 43 #ifdef HAVE_DIRENT_H 44 #include <dirent.h> 45 #endif 46 #include <libgen.h> 47 48 #include "e2p/e2p.h" 49 #include "et/com_err.h" 50 #include "e2p/e2p.h" 51 #include "uuid/uuid.h" 52 #include "support/plausible.h" 53 #include "e2fsck.h" 54 #include "problem.h" 55 #include "jfs_user.h" 56 #include "../version.h" 57 58 /* Command line options */ 59 static int cflag; /* check disk */ 60 static int show_version_only; 61 static int verbose; 62 63 static int replace_bad_blocks; 64 static int keep_bad_blocks; 65 static char *bad_blocks_file; 66 67 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */ 68 69 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */ 70 int journal_enable_debug = -1; 71 #endif 72 73 static void usage(e2fsck_t ctx) 74 { 75 fprintf(stderr, 76 _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n" 77 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n" 78 "\t\t[-E extended-options] [-z undo_file] 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 " -z undo_file Create an undo file\n" 95 )); 96 97 exit(FSCK_USAGE); 98 } 99 100 static void show_stats(e2fsck_t ctx) 101 { 102 ext2_filsys fs = ctx->fs; 103 ext2_ino_t inodes, inodes_used; 104 blk64_t blocks, blocks_used; 105 unsigned int dir_links; 106 unsigned int num_files, num_links; 107 __u32 *mask, m; 108 int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0; 109 int i, j, printed = 0; 110 111 dir_links = 2 * ctx->fs_directory_count - 1; 112 num_files = ctx->fs_total_count - dir_links; 113 num_links = ctx->fs_links_count - dir_links; 114 inodes = fs->super->s_inodes_count; 115 inodes_used = (fs->super->s_inodes_count - 116 fs->super->s_free_inodes_count); 117 blocks = ext2fs_blocks_count(fs->super); 118 blocks_used = (ext2fs_blocks_count(fs->super) - 119 ext2fs_free_blocks_count(fs->super)); 120 121 if (inodes_used > 0) { 122 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used; 123 frag_percent_file = (frag_percent_file + 5) / 10; 124 125 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used; 126 frag_percent_dir = (frag_percent_dir + 5) / 10; 127 128 frag_percent_total = ((10000 * (ctx->fs_fragmented + 129 ctx->fs_fragmented_dir)) 130 / inodes_used); 131 frag_percent_total = (frag_percent_total + 5) / 10; 132 } 133 134 if (!verbose) { 135 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), " 136 "%llu/%llu blocks\n"), 137 ctx->device_name, inodes_used, inodes, 138 frag_percent_total / 10, frag_percent_total % 10, 139 (unsigned long long) blocks_used, 140 (unsigned long long) blocks); 141 return; 142 } 143 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0, 144 &i); 145 if (verbose && i) { 146 log_out(ctx, "\nFilesystem features:"); 147 mask = &ctx->fs->super->s_feature_compat; 148 for (i = 0; i < 3; i++, mask++) { 149 for (j = 0, m = 1; j < 32; j++, m <<= 1) { 150 if (*mask & m) { 151 log_out(ctx, " %s", 152 e2p_feature2string(i, m)); 153 printed++; 154 } 155 } 156 } 157 if (printed == 0) 158 log_out(ctx, " (none)"); 159 log_out(ctx, "\n"); 160 } 161 162 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n", 163 "\n%12u inodes used (%2.2f%%, out of %u)\n", 164 inodes_used), inodes_used, 165 100.0 * inodes_used / inodes, inodes); 166 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n", 167 "%12u non-contiguous files (%0d.%d%%)\n", 168 ctx->fs_fragmented), 169 ctx->fs_fragmented, frag_percent_file / 10, 170 frag_percent_file % 10); 171 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n", 172 "%12u non-contiguous directories (%0d.%d%%)\n", 173 ctx->fs_fragmented_dir), 174 ctx->fs_fragmented_dir, frag_percent_dir / 10, 175 frag_percent_dir % 10); 176 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: " 177 "%u/%u/%u\n"), 178 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count); 179 180 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--) 181 if (ctx->extent_depth_count[j]) 182 break; 183 if (++j) { 184 log_out(ctx, "%s", _(" Extent depth histogram: ")); 185 for (i=0; i < j; i++) { 186 if (i) 187 fputc('/', stdout); 188 log_out(ctx, "%u", ctx->extent_depth_count[i]); 189 } 190 log_out(ctx, "\n"); 191 } 192 193 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n", 194 "%12llu blocks used (%2.2f%%, out of %llu)\n", 195 blocks_used), 196 (unsigned long long) blocks_used, 100.0 * blocks_used / blocks, 197 (unsigned long long) blocks); 198 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n", 199 ctx->fs_badblocks_count), ctx->fs_badblocks_count); 200 log_out(ctx, P_("%12u large file\n", "%12u large files\n", 201 ctx->large_files), ctx->large_files); 202 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n", 203 ctx->fs_regular_count), ctx->fs_regular_count); 204 log_out(ctx, P_("%12u directory\n", "%12u directories\n", 205 ctx->fs_directory_count), ctx->fs_directory_count); 206 log_out(ctx, P_("%12u character device file\n", 207 "%12u character device files\n", ctx->fs_chardev_count), 208 ctx->fs_chardev_count); 209 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n", 210 ctx->fs_blockdev_count), ctx->fs_blockdev_count); 211 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count), 212 ctx->fs_fifo_count); 213 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links), 214 ctx->fs_links_count - dir_links); 215 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links", 216 ctx->fs_symlinks_count), ctx->fs_symlinks_count); 217 log_out(ctx, P_(" (%u fast symbolic link)\n", 218 " (%u fast symbolic links)\n", 219 ctx->fs_fast_symlinks_count), 220 ctx->fs_fast_symlinks_count); 221 log_out(ctx, P_("%12u socket\n", "%12u sockets\n", 222 ctx->fs_sockets_count), 223 ctx->fs_sockets_count); 224 log_out(ctx, "------------\n"); 225 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files), 226 num_files); 227 } 228 229 static void check_mount(e2fsck_t ctx) 230 { 231 errcode_t retval; 232 int cont; 233 234 retval = ext2fs_check_if_mounted(ctx->filesystem_name, 235 &ctx->mount_flags); 236 if (retval) { 237 com_err("ext2fs_check_if_mount", retval, 238 _("while determining whether %s is mounted."), 239 ctx->filesystem_name); 240 return; 241 } 242 243 /* 244 * If the filesystem isn't mounted, or it's the root 245 * filesystem and it's mounted read-only, and we're not doing 246 * a read/write check, then everything's fine. 247 */ 248 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) || 249 ((ctx->mount_flags & EXT2_MF_ISROOT) && 250 (ctx->mount_flags & EXT2_MF_READONLY) && 251 !(ctx->options & E2F_OPT_WRITECHECK))) 252 return; 253 254 if (((ctx->options & E2F_OPT_READONLY) || 255 ((ctx->options & E2F_OPT_FORCE) && 256 (ctx->mount_flags & EXT2_MF_READONLY))) && 257 !(ctx->options & E2F_OPT_WRITECHECK)) { 258 if (ctx->mount_flags & EXT2_MF_MOUNTED) 259 log_out(ctx, _("Warning! %s is mounted.\n"), 260 ctx->filesystem_name); 261 else 262 log_out(ctx, _("Warning! %s is in use.\n"), 263 ctx->filesystem_name); 264 return; 265 } 266 267 if (ctx->mount_flags & EXT2_MF_MOUNTED) 268 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name); 269 else 270 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name); 271 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY) 272 fatal_error(ctx, _("Cannot continue, aborting.\n\n")); 273 puts("\007\007\007\007"); 274 log_out(ctx, "%s", _("\n\nWARNING!!! " 275 "The filesystem is mounted. " 276 "If you continue you ***WILL***\n" 277 "cause ***SEVERE*** filesystem damage.\n\n")); 278 puts("\007\007\007"); 279 cont = ask_yn(ctx, _("Do you really want to continue"), 0); 280 if (!cont) { 281 printf("%s", _("check aborted.\n")); 282 exit (0); 283 } 284 return; 285 } 286 287 static int is_on_batt(void) 288 { 289 FILE *f; 290 DIR *d; 291 char tmp[80], tmp2[80], fname[NAME_MAX+30]; 292 unsigned int acflag; 293 struct dirent* de; 294 295 f = fopen("/sys/class/power_supply/AC/online", "r"); 296 if (f) { 297 if (fscanf(f, "%u\n", &acflag) == 1) { 298 fclose(f); 299 return (!acflag); 300 } 301 fclose(f); 302 } 303 f = fopen("/proc/apm", "r"); 304 if (f) { 305 if (fscanf(f, "%79s %79s %79s %x", tmp, tmp, tmp, &acflag) != 4) 306 acflag = 1; 307 fclose(f); 308 return (acflag != 1); 309 } 310 d = opendir("/proc/acpi/ac_adapter"); 311 if (d) { 312 while ((de=readdir(d)) != NULL) { 313 if (!strncmp(".", de->d_name, 1)) 314 continue; 315 snprintf(fname, sizeof(fname), 316 "/proc/acpi/ac_adapter/%s/state", 317 de->d_name); 318 f = fopen(fname, "r"); 319 if (!f) 320 continue; 321 if (fscanf(f, "%79s %79s", tmp2, tmp) != 2) 322 tmp[0] = 0; 323 fclose(f); 324 if (strncmp(tmp, "off-line", 8) == 0) { 325 closedir(d); 326 return 1; 327 } 328 } 329 closedir(d); 330 } 331 return 0; 332 } 333 334 /* 335 * This routine checks to see if a filesystem can be skipped; if so, 336 * it will exit with E2FSCK_OK. Under some conditions it will print a 337 * message explaining why a check is being forced. 338 */ 339 static void check_if_skip(e2fsck_t ctx) 340 { 341 ext2_filsys fs = ctx->fs; 342 struct problem_context pctx; 343 const char *reason = NULL; 344 unsigned int reason_arg = 0; 345 long next_check; 346 int batt = is_on_batt(); 347 int defer_check_on_battery; 348 int broken_system_clock; 349 time_t lastcheck; 350 351 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED) 352 return; 353 354 profile_get_boolean(ctx->profile, "options", "broken_system_clock", 355 0, 0, &broken_system_clock); 356 if (ctx->flags & E2F_FLAG_TIME_INSANE) 357 broken_system_clock = 1; 358 profile_get_boolean(ctx->profile, "options", 359 "defer_check_on_battery", 0, 1, 360 &defer_check_on_battery); 361 if (!defer_check_on_battery) 362 batt = 0; 363 364 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag) 365 return; 366 367 if (ctx->options & E2F_OPT_JOURNAL_ONLY) 368 goto skip; 369 370 lastcheck = fs->super->s_lastcheck; 371 if (lastcheck > ctx->now) 372 lastcheck -= ctx->time_fudge; 373 if ((fs->super->s_state & EXT2_ERROR_FS) || 374 !ext2fs_test_valid(fs)) 375 reason = _(" contains a file system with errors"); 376 else if ((fs->super->s_state & EXT2_VALID_FS) == 0) 377 reason = _(" was not cleanly unmounted"); 378 else if (check_backup_super_block(ctx)) 379 reason = _(" primary superblock features different from backup"); 380 else if ((fs->super->s_max_mnt_count > 0) && 381 (fs->super->s_mnt_count >= 382 (unsigned) fs->super->s_max_mnt_count)) { 383 reason = _(" has been mounted %u times without being checked"); 384 reason_arg = fs->super->s_mnt_count; 385 if (batt && (fs->super->s_mnt_count < 386 (unsigned) fs->super->s_max_mnt_count*2)) 387 reason = 0; 388 } else if (!broken_system_clock && fs->super->s_checkinterval && 389 (ctx->now < lastcheck)) { 390 reason = _(" has filesystem last checked time in the future"); 391 if (batt) 392 reason = 0; 393 } else if (!broken_system_clock && fs->super->s_checkinterval && 394 ((ctx->now - lastcheck) >= 395 ((time_t) fs->super->s_checkinterval))) { 396 reason = _(" has gone %u days without being checked"); 397 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24); 398 if (batt && ((ctx->now - fs->super->s_lastcheck) < 399 fs->super->s_checkinterval*2)) 400 reason = 0; 401 } else if (broken_system_clock && fs->super->s_checkinterval) { 402 log_out(ctx, "%s: ", ctx->device_name); 403 log_out(ctx, "%s", 404 _("ignoring check interval, broken_system_clock set\n")); 405 } 406 407 if (reason) { 408 log_out(ctx, "%s", ctx->device_name); 409 log_out(ctx, reason, reason_arg); 410 log_out(ctx, "%s", _(", check forced.\n")); 411 return; 412 } 413 414 /* 415 * Update the global counts from the block group counts. This 416 * is needed since modern kernels don't update the global 417 * counts so as to avoid locking the entire file system. So 418 * if the filesystem is not unmounted cleanly, the global 419 * counts may not be accurate. Update them here if we can, 420 * for the benefit of users who might examine the file system 421 * using dumpe2fs. (This is for cosmetic reasons only.) 422 */ 423 clear_problem_context(&pctx); 424 pctx.ino = fs->super->s_free_inodes_count; 425 pctx.ino2 = ctx->free_inodes; 426 if ((pctx.ino != pctx.ino2) && 427 !(ctx->options & E2F_OPT_READONLY) && 428 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) { 429 fs->super->s_free_inodes_count = ctx->free_inodes; 430 ext2fs_mark_super_dirty(fs); 431 } 432 clear_problem_context(&pctx); 433 pctx.blk = ext2fs_free_blocks_count(fs->super); 434 pctx.blk2 = ctx->free_blocks; 435 if ((pctx.blk != pctx.blk2) && 436 !(ctx->options & E2F_OPT_READONLY) && 437 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) { 438 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks); 439 ext2fs_mark_super_dirty(fs); 440 } 441 442 /* Print the summary message when we're skipping a full check */ 443 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"), 444 ctx->device_name, 445 fs->super->s_inodes_count - fs->super->s_free_inodes_count, 446 fs->super->s_inodes_count, 447 (unsigned long long) ext2fs_blocks_count(fs->super) - 448 ext2fs_free_blocks_count(fs->super), 449 (unsigned long long) ext2fs_blocks_count(fs->super)); 450 next_check = 100000; 451 if (fs->super->s_max_mnt_count > 0) { 452 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count; 453 if (next_check <= 0) 454 next_check = 1; 455 } 456 if (!broken_system_clock && fs->super->s_checkinterval && 457 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval)) 458 next_check = 1; 459 if (next_check <= 5) { 460 if (next_check == 1) { 461 if (batt) 462 log_out(ctx, "%s", 463 _(" (check deferred; on battery)")); 464 else 465 log_out(ctx, "%s", 466 _(" (check after next mount)")); 467 } else 468 log_out(ctx, _(" (check in %ld mounts)"), 469 next_check); 470 } 471 log_out(ctx, "\n"); 472 skip: 473 ext2fs_close_free(&ctx->fs); 474 e2fsck_free_context(ctx); 475 exit(FSCK_OK); 476 } 477 478 /* 479 * For completion notice 480 */ 481 struct percent_tbl { 482 int max_pass; 483 int table[32]; 484 }; 485 static struct percent_tbl e2fsck_tbl = { 486 5, { 0, 70, 90, 92, 95, 100 } 487 }; 488 static char bar[128], spaces[128]; 489 490 static float calc_percent(struct percent_tbl *tbl, int pass, int curr, 491 int max) 492 { 493 float percent; 494 495 if (pass <= 0) 496 return 0.0; 497 if (pass > tbl->max_pass || max == 0) 498 return 100.0; 499 percent = ((float) curr) / ((float) max); 500 return ((percent * (tbl->table[pass] - tbl->table[pass-1])) 501 + tbl->table[pass-1]); 502 } 503 504 void e2fsck_clear_progbar(e2fsck_t ctx) 505 { 506 if (!(ctx->flags & E2F_FLAG_PROG_BAR)) 507 return; 508 509 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80), 510 ctx->stop_meta); 511 fflush(stdout); 512 ctx->flags &= ~E2F_FLAG_PROG_BAR; 513 } 514 515 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent, 516 unsigned int dpynum) 517 { 518 static const char spinner[] = "\\|/-"; 519 int i; 520 unsigned int tick; 521 struct timeval tv; 522 int dpywidth; 523 int fixed_percent; 524 525 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS) 526 return 0; 527 528 /* 529 * Calculate the new progress position. If the 530 * percentage hasn't changed, then we skip out right 531 * away. 532 */ 533 fixed_percent = (int) ((10 * percent) + 0.5); 534 if (ctx->progress_last_percent == fixed_percent) 535 return 0; 536 ctx->progress_last_percent = fixed_percent; 537 538 /* 539 * If we've already updated the spinner once within 540 * the last 1/8th of a second, no point doing it 541 * again. 542 */ 543 gettimeofday(&tv, NULL); 544 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8)); 545 if ((tick == ctx->progress_last_time) && 546 (fixed_percent != 0) && (fixed_percent != 1000)) 547 return 0; 548 ctx->progress_last_time = tick; 549 550 /* 551 * Advance the spinner, and note that the progress bar 552 * will be on the screen 553 */ 554 ctx->progress_pos = (ctx->progress_pos+1) & 3; 555 ctx->flags |= E2F_FLAG_PROG_BAR; 556 557 dpywidth = 66 - strlen(label); 558 dpywidth = 8 * (dpywidth / 8); 559 if (dpynum) 560 dpywidth -= 8; 561 562 i = ((percent * dpywidth) + 50) / 100; 563 printf("%s%s: |%s%s", ctx->start_meta, label, 564 bar + (sizeof(bar) - (i+1)), 565 spaces + (sizeof(spaces) - (dpywidth - i + 1))); 566 if (fixed_percent == 1000) 567 fputc('|', stdout); 568 else 569 fputc(spinner[ctx->progress_pos & 3], stdout); 570 printf(" %4.1f%% ", percent); 571 if (dpynum) 572 printf("%u\r", dpynum); 573 else 574 fputs(" \r", stdout); 575 fputs(ctx->stop_meta, stdout); 576 577 if (fixed_percent == 1000) 578 e2fsck_clear_progbar(ctx); 579 fflush(stdout); 580 581 return 0; 582 } 583 584 static int e2fsck_update_progress(e2fsck_t ctx, int pass, 585 unsigned long cur, unsigned long max) 586 { 587 char buf[1024]; 588 float percent; 589 590 if (pass == 0) 591 return 0; 592 593 if (ctx->progress_fd) { 594 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n", 595 pass, cur, max, ctx->device_name); 596 write_all(ctx->progress_fd, buf, strlen(buf)); 597 } else { 598 percent = calc_percent(&e2fsck_tbl, pass, cur, max); 599 e2fsck_simple_progress(ctx, ctx->device_name, 600 percent, 0); 601 } 602 return 0; 603 } 604 605 static int e2fsck_progress_once(e2fsck_t ctx, int pass, unsigned long cur, unsigned long max) 606 { 607 char buf[80]; 608 float percent; 609 610 if (pass == 0) 611 return 0; 612 613 percent = calc_percent(&e2fsck_tbl, pass, cur, max); 614 e2fsck_simple_progress(ctx, ctx->device_name, 615 percent, 0); 616 617 printf("\n"); 618 ctx->progress = 0; 619 return 0; 620 } 621 622 623 #define PATH_SET "PATH=/sbin" 624 625 /* 626 * Make sure 0,1,2 file descriptors are open, so that we don't open 627 * the filesystem using the same file descriptor as stdout or stderr. 628 */ 629 static void reserve_stdio_fds(void) 630 { 631 int fd = 0; 632 633 while (fd <= 2) { 634 fd = open("/dev/null", O_RDWR); 635 if (fd < 0) { 636 fprintf(stderr, _("ERROR: Couldn't open " 637 "/dev/null (%s)\n"), 638 strerror(errno)); 639 return; 640 } 641 } 642 (void) close(fd); 643 } 644 645 #ifdef HAVE_SIGNAL_H 646 static void signal_progress_on(int sig EXT2FS_ATTR((unused))) 647 { 648 e2fsck_t ctx = e2fsck_global_ctx; 649 650 if (!ctx) 651 return; 652 653 ctx->progress = e2fsck_update_progress; 654 } 655 656 static void signal_progress_now(int sig EXT2FS_ATTR((unused))) 657 { 658 e2fsck_t ctx = e2fsck_global_ctx; 659 660 if (!ctx) 661 return; 662 663 ctx->progress = e2fsck_progress_once; 664 ctx->progress_fd = 0; 665 } 666 667 static void signal_progress_off(int sig EXT2FS_ATTR((unused))) 668 { 669 e2fsck_t ctx = e2fsck_global_ctx; 670 671 if (!ctx) 672 return; 673 674 e2fsck_clear_progbar(ctx); 675 ctx->progress = 0; 676 } 677 678 static void signal_cancel(int sig EXT2FS_ATTR((unused))) 679 { 680 e2fsck_t ctx = e2fsck_global_ctx; 681 682 if (!ctx) 683 exit(FSCK_CANCELED); 684 685 ctx->flags |= E2F_FLAG_CANCEL; 686 } 687 #endif 688 689 static void parse_extended_opts(e2fsck_t ctx, const char *opts) 690 { 691 char *buf, *token, *next, *p, *arg; 692 int ea_ver; 693 int extended_usage = 0; 694 unsigned long long reada_kb; 695 696 buf = string_copy(ctx, opts, 0); 697 for (token = buf; token && *token; token = next) { 698 p = strchr(token, ','); 699 next = 0; 700 if (p) { 701 *p = 0; 702 next = p+1; 703 } 704 arg = strchr(token, '='); 705 if (arg) { 706 *arg = 0; 707 arg++; 708 } 709 if (strcmp(token, "ea_ver") == 0) { 710 if (!arg) { 711 extended_usage++; 712 continue; 713 } 714 ea_ver = strtoul(arg, &p, 0); 715 if (*p || 716 ((ea_ver != 1) && (ea_ver != 2))) { 717 fprintf(stderr, "%s", 718 _("Invalid EA version.\n")); 719 extended_usage++; 720 continue; 721 } 722 ctx->ext_attr_ver = ea_ver; 723 } else if (strcmp(token, "readahead_kb") == 0) { 724 if (!arg) { 725 extended_usage++; 726 continue; 727 } 728 reada_kb = strtoull(arg, &p, 0); 729 if (*p) { 730 fprintf(stderr, "%s", 731 _("Invalid readahead buffer size.\n")); 732 extended_usage++; 733 continue; 734 } 735 ctx->readahead_kb = reada_kb; 736 } else if (strcmp(token, "fragcheck") == 0) { 737 ctx->options |= E2F_OPT_FRAGCHECK; 738 continue; 739 } else if (strcmp(token, "journal_only") == 0) { 740 if (arg) { 741 extended_usage++; 742 continue; 743 } 744 ctx->options |= E2F_OPT_JOURNAL_ONLY; 745 } else if (strcmp(token, "discard") == 0) { 746 ctx->options |= E2F_OPT_DISCARD; 747 continue; 748 } else if (strcmp(token, "nodiscard") == 0) { 749 ctx->options &= ~E2F_OPT_DISCARD; 750 continue; 751 } else if (strcmp(token, "optimize_extents") == 0) { 752 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS; 753 continue; 754 } else if (strcmp(token, "no_optimize_extents") == 0) { 755 ctx->options |= E2F_OPT_NOOPT_EXTENTS; 756 continue; 757 } else if (strcmp(token, "inode_count_fullmap") == 0) { 758 ctx->options |= E2F_OPT_ICOUNT_FULLMAP; 759 continue; 760 } else if (strcmp(token, "no_inode_count_fullmap") == 0) { 761 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP; 762 continue; 763 } else if (strcmp(token, "log_filename") == 0) { 764 if (!arg) 765 extended_usage++; 766 else 767 ctx->log_fn = string_copy(ctx, arg, 0); 768 continue; 769 } else if (strcmp(token, "problem_log") == 0) { 770 if (!arg) 771 extended_usage++; 772 else 773 ctx->problem_log_fn = string_copy(ctx, arg, 0); 774 continue; 775 } else if (strcmp(token, "bmap2extent") == 0) { 776 ctx->options |= E2F_OPT_CONVERT_BMAP; 777 continue; 778 } else if (strcmp(token, "fixes_only") == 0) { 779 ctx->options |= E2F_OPT_FIXES_ONLY; 780 continue; 781 } else if (strcmp(token, "unshare_blocks") == 0) { 782 ctx->options |= E2F_OPT_UNSHARE_BLOCKS; 783 ctx->options |= E2F_OPT_FORCE; 784 continue; 785 } else if (strcmp(token, "check_encoding") == 0) { 786 ctx->options |= E2F_OPT_CHECK_ENCODING; 787 continue; 788 #ifdef CONFIG_DEVELOPER_FEATURES 789 } else if (strcmp(token, "clear_all_uninit_bits") == 0) { 790 ctx->options |= E2F_OPT_CLEAR_UNINIT; 791 continue; 792 #endif 793 } else { 794 fprintf(stderr, _("Unknown extended option: %s\n"), 795 token); 796 extended_usage++; 797 } 798 } 799 free(buf); 800 801 if (extended_usage) { 802 fputs(_("\nExtended options are separated by commas, " 803 "and may take an argument which\n" 804 "is set off by an equals ('=') sign. " 805 "Valid extended options are:\n\n"), stderr); 806 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr); 807 fputs("\tfragcheck\n", stderr); 808 fputs("\tjournal_only\n", stderr); 809 fputs("\tdiscard\n", stderr); 810 fputs("\tnodiscard\n", stderr); 811 fputs("\toptimize_extents\n", stderr); 812 fputs("\tno_optimize_extents\n", stderr); 813 fputs("\tinode_count_fullmap\n", stderr); 814 fputs("\tno_inode_count_fullmap\n", stderr); 815 fputs(_("\treadahead_kb=<buffer size>\n"), stderr); 816 fputs("\tbmap2extent\n", stderr); 817 fputs("\tunshare_blocks\n", stderr); 818 fputs("\tfixes_only\n", stderr); 819 fputs("\tcheck_encoding\n", stderr); 820 fputc('\n', stderr); 821 exit(1); 822 } 823 } 824 825 static void syntax_err_report(const char *filename, long err, int line_num) 826 { 827 fprintf(stderr, 828 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"), 829 filename, line_num, error_message(err)); 830 exit(FSCK_ERROR); 831 } 832 833 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 }; 834 835 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx) 836 { 837 int flush = 0; 838 int c, fd; 839 #ifdef MTRACE 840 extern void *mallwatch; 841 #endif 842 e2fsck_t ctx; 843 errcode_t retval; 844 #ifdef HAVE_SIGNAL_H 845 struct sigaction sa; 846 #endif 847 char *extended_opts = 0; 848 char *cp; 849 int res; /* result of sscanf */ 850 #ifdef CONFIG_JBD_DEBUG 851 char *jbd_debug; 852 #endif 853 unsigned long long phys_mem_kb, blk; 854 855 retval = e2fsck_allocate_context(&ctx); 856 if (retval) 857 return retval; 858 859 *ret_ctx = ctx; 860 e2fsck_global_ctx = ctx; 861 862 setvbuf(stdout, NULL, _IONBF, BUFSIZ); 863 setvbuf(stderr, NULL, _IONBF, BUFSIZ); 864 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) { 865 ctx->interactive = 1; 866 } else { 867 ctx->start_meta[0] = '\001'; 868 ctx->stop_meta[0] = '\002'; 869 } 870 memset(bar, '=', sizeof(bar)-1); 871 memset(spaces, ' ', sizeof(spaces)-1); 872 add_error_table(&et_ext2_error_table); 873 add_error_table(&et_prof_error_table); 874 blkid_get_cache(&ctx->blkid, NULL); 875 876 if (argc && *argv) 877 ctx->program_name = *argv; 878 else 879 ctx->program_name = "e2fsck"; 880 881 phys_mem_kb = get_memory_size() / 1024; 882 ctx->readahead_kb = ~0ULL; 883 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF) 884 switch (c) { 885 case 'C': 886 ctx->progress = e2fsck_update_progress; 887 res = sscanf(optarg, "%d", &ctx->progress_fd); 888 if (res != 1) 889 goto sscanf_err; 890 891 if (ctx->progress_fd < 0) { 892 ctx->progress = 0; 893 ctx->progress_fd = ctx->progress_fd * -1; 894 } 895 if (!ctx->progress_fd) 896 break; 897 /* Validate the file descriptor to avoid disasters */ 898 fd = dup(ctx->progress_fd); 899 if (fd < 0) { 900 fprintf(stderr, 901 _("Error validating file descriptor %d: %s\n"), 902 ctx->progress_fd, 903 error_message(errno)); 904 fatal_error(ctx, 905 _("Invalid completion information file descriptor")); 906 } else 907 close(fd); 908 break; 909 case 'D': 910 ctx->options |= E2F_OPT_COMPRESS_DIRS; 911 break; 912 case 'E': 913 extended_opts = optarg; 914 break; 915 case 'p': 916 case 'a': 917 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) { 918 conflict_opt: 919 fatal_error(ctx, 920 _("Only one of the options -p/-a, -n or -y may be specified.")); 921 } 922 ctx->options |= E2F_OPT_PREEN; 923 break; 924 case 'n': 925 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN)) 926 goto conflict_opt; 927 ctx->options |= E2F_OPT_NO; 928 break; 929 case 'y': 930 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO)) 931 goto conflict_opt; 932 ctx->options |= E2F_OPT_YES; 933 break; 934 case 't': 935 #ifdef RESOURCE_TRACK 936 if (ctx->options & E2F_OPT_TIME) 937 ctx->options |= E2F_OPT_TIME2; 938 else 939 ctx->options |= E2F_OPT_TIME; 940 #else 941 fprintf(stderr, _("The -t option is not " 942 "supported on this version of e2fsck.\n")); 943 #endif 944 break; 945 case 'c': 946 if (cflag++) 947 ctx->options |= E2F_OPT_WRITECHECK; 948 ctx->options |= E2F_OPT_CHECKBLOCKS; 949 break; 950 case 'r': 951 /* What we do by default, anyway! */ 952 break; 953 case 'b': 954 res = sscanf(optarg, "%llu", &blk); 955 ctx->use_superblock = blk; 956 if (res != 1) 957 goto sscanf_err; 958 ctx->flags |= E2F_FLAG_SB_SPECIFIED; 959 break; 960 case 'B': 961 ctx->blocksize = atoi(optarg); 962 break; 963 case 'I': 964 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks); 965 if (res != 1) 966 goto sscanf_err; 967 break; 968 case 'j': 969 ctx->journal_name = blkid_get_devname(ctx->blkid, 970 optarg, NULL); 971 if (!ctx->journal_name) { 972 com_err(ctx->program_name, 0, 973 _("Unable to resolve '%s'"), 974 optarg); 975 fatal_error(ctx, 0); 976 } 977 break; 978 case 'P': 979 res = sscanf(optarg, "%d", &ctx->process_inode_size); 980 if (res != 1) 981 goto sscanf_err; 982 break; 983 case 'L': 984 replace_bad_blocks++; 985 /* fall through */ 986 case 'l': 987 if (bad_blocks_file) 988 free(bad_blocks_file); 989 bad_blocks_file = string_copy(ctx, optarg, 0); 990 break; 991 case 'd': 992 ctx->options |= E2F_OPT_DEBUG; 993 break; 994 case 'f': 995 ctx->options |= E2F_OPT_FORCE; 996 break; 997 case 'F': 998 flush = 1; 999 break; 1000 case 'v': 1001 verbose = 1; 1002 break; 1003 case 'V': 1004 show_version_only = 1; 1005 break; 1006 #ifdef MTRACE 1007 case 'M': 1008 mallwatch = (void *) strtol(optarg, NULL, 0); 1009 break; 1010 #endif 1011 case 'N': 1012 ctx->device_name = string_copy(ctx, optarg, 0); 1013 break; 1014 case 'k': 1015 keep_bad_blocks++; 1016 break; 1017 case 'z': 1018 ctx->undo_file = optarg; 1019 break; 1020 default: 1021 usage(ctx); 1022 } 1023 if (show_version_only) 1024 return 0; 1025 if (optind != argc - 1) 1026 usage(ctx); 1027 if ((ctx->options & E2F_OPT_NO) && 1028 (ctx->options & E2F_OPT_COMPRESS_DIRS)) { 1029 com_err(ctx->program_name, 0, "%s", 1030 _("The -n and -D options are incompatible.")); 1031 fatal_error(ctx, 0); 1032 } 1033 if ((ctx->options & E2F_OPT_NO) && cflag) { 1034 com_err(ctx->program_name, 0, "%s", 1035 _("The -n and -c options are incompatible.")); 1036 fatal_error(ctx, 0); 1037 } 1038 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) { 1039 com_err(ctx->program_name, 0, "%s", 1040 _("The -n and -l/-L options are incompatible.")); 1041 fatal_error(ctx, 0); 1042 } 1043 if (ctx->options & E2F_OPT_NO) 1044 ctx->options |= E2F_OPT_READONLY; 1045 1046 ctx->io_options = strchr(argv[optind], '?'); 1047 if (ctx->io_options) 1048 *ctx->io_options++ = 0; 1049 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0); 1050 if (!ctx->filesystem_name) { 1051 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"), 1052 argv[optind]); 1053 fatal_error(ctx, 0); 1054 } 1055 if (extended_opts) 1056 parse_extended_opts(ctx, extended_opts); 1057 1058 /* Complain about mutually exclusive rebuilding activities */ 1059 if (getenv("E2FSCK_FIXES_ONLY")) 1060 ctx->options |= E2F_OPT_FIXES_ONLY; 1061 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) && 1062 (ctx->options & E2F_OPT_FIXES_ONLY)) { 1063 com_err(ctx->program_name, 0, "%s", 1064 _("The -D and -E fixes_only options are incompatible.")); 1065 fatal_error(ctx, 0); 1066 } 1067 if ((ctx->options & E2F_OPT_CONVERT_BMAP) && 1068 (ctx->options & E2F_OPT_FIXES_ONLY)) { 1069 com_err(ctx->program_name, 0, "%s", 1070 _("The -E bmap2extent and fixes_only options are incompatible.")); 1071 fatal_error(ctx, 0); 1072 } 1073 1074 if ((cp = getenv("E2FSCK_CONFIG")) != NULL) 1075 config_fn[0] = cp; 1076 profile_set_syntax_err_cb(syntax_err_report); 1077 profile_init(config_fn, &ctx->profile); 1078 1079 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0, 1080 &c); 1081 if (c) 1082 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2; 1083 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0, 1084 &c); 1085 if (c) 1086 verbose = 1; 1087 1088 profile_get_boolean(ctx->profile, "options", "no_optimize_extents", 1089 0, 0, &c); 1090 if (c) 1091 ctx->options |= E2F_OPT_NOOPT_EXTENTS; 1092 1093 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap", 1094 0, 0, &c); 1095 if (c) 1096 ctx->options |= E2F_OPT_ICOUNT_FULLMAP; 1097 1098 if (ctx->readahead_kb == ~0ULL) { 1099 profile_get_integer(ctx->profile, "options", 1100 "readahead_mem_pct", 0, -1, &c); 1101 if (c >= 0 && c <= 100) 1102 ctx->readahead_kb = phys_mem_kb * c / 100; 1103 profile_get_integer(ctx->profile, "options", 1104 "readahead_kb", 0, -1, &c); 1105 if (c >= 0) 1106 ctx->readahead_kb = c; 1107 if (ctx->readahead_kb != ~0ULL && 1108 ctx->readahead_kb > phys_mem_kb) 1109 ctx->readahead_kb = phys_mem_kb; 1110 } 1111 1112 /* Turn off discard in read-only mode */ 1113 if ((ctx->options & E2F_OPT_NO) && 1114 (ctx->options & E2F_OPT_DISCARD)) 1115 ctx->options &= ~E2F_OPT_DISCARD; 1116 1117 if (flush) { 1118 fd = open(ctx->filesystem_name, O_RDONLY, 0); 1119 if (fd < 0) { 1120 com_err("open", errno, 1121 _("while opening %s for flushing"), 1122 ctx->filesystem_name); 1123 fatal_error(ctx, 0); 1124 } 1125 if ((retval = ext2fs_sync_device(fd, 1))) { 1126 com_err("ext2fs_sync_device", retval, 1127 _("while trying to flush %s"), 1128 ctx->filesystem_name); 1129 fatal_error(ctx, 0); 1130 } 1131 close(fd); 1132 } 1133 if (cflag && bad_blocks_file) { 1134 fprintf(stderr, "%s", _("The -c and the -l/-L options may not " 1135 "be both used at the same time.\n")); 1136 exit(FSCK_USAGE); 1137 } 1138 #ifdef HAVE_SIGNAL_H 1139 /* 1140 * Set up signal action 1141 */ 1142 memset(&sa, 0, sizeof(struct sigaction)); 1143 sa.sa_handler = signal_cancel; 1144 sigaction(SIGINT, &sa, 0); 1145 sigaction(SIGTERM, &sa, 0); 1146 #ifdef SA_RESTART 1147 sa.sa_flags = SA_RESTART; 1148 #endif 1149 sa.sa_handler = signal_progress_on; 1150 sigaction(SIGUSR1, &sa, 0); 1151 sa.sa_handler = signal_progress_off; 1152 sigaction(SIGUSR2, &sa, 0); 1153 sa.sa_handler = signal_progress_now; 1154 if (!getenv("e2fsprogs_inhibit_SIGINFO")) { 1155 sigaction(SIGINFO, &sa, 0); 1156 } 1157 #endif 1158 1159 /* Update our PATH to include /sbin if we need to run badblocks */ 1160 if (cflag) { 1161 char *oldpath = getenv("PATH"); 1162 char *newpath; 1163 int len = sizeof(PATH_SET) + 1; 1164 1165 if (oldpath) 1166 len += strlen(oldpath); 1167 1168 newpath = malloc(len); 1169 if (!newpath) 1170 fatal_error(ctx, "Couldn't malloc() newpath"); 1171 strcpy(newpath, PATH_SET); 1172 1173 if (oldpath) { 1174 strcat(newpath, ":"); 1175 strcat(newpath, oldpath); 1176 } 1177 putenv(newpath); 1178 } 1179 #ifdef CONFIG_JBD_DEBUG 1180 jbd_debug = getenv("E2FSCK_JBD_DEBUG"); 1181 if (jbd_debug) { 1182 res = sscanf(jbd_debug, "%d", &journal_enable_debug); 1183 if (res != 1) { 1184 fprintf(stderr, 1185 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"), 1186 jbd_debug); 1187 exit (1); 1188 } 1189 } 1190 #endif 1191 return 0; 1192 1193 sscanf_err: 1194 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"), 1195 c, optarg); 1196 exit (1); 1197 } 1198 1199 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr, 1200 ext2_filsys *ret_fs) 1201 { 1202 errcode_t retval; 1203 1204 *ret_fs = NULL; 1205 if (ctx->superblock && ctx->blocksize) { 1206 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, 1207 flags, ctx->superblock, ctx->blocksize, 1208 io_ptr, ret_fs); 1209 } else if (ctx->superblock) { 1210 int blocksize; 1211 for (blocksize = EXT2_MIN_BLOCK_SIZE; 1212 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) { 1213 if (*ret_fs) { 1214 ext2fs_free(*ret_fs); 1215 *ret_fs = NULL; 1216 } 1217 retval = ext2fs_open2(ctx->filesystem_name, 1218 ctx->io_options, flags, 1219 ctx->superblock, blocksize, 1220 io_ptr, ret_fs); 1221 if (!retval) 1222 break; 1223 } 1224 } else 1225 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, 1226 flags, 0, 0, io_ptr, ret_fs); 1227 1228 if (retval == 0) { 1229 (*ret_fs)->priv_data = ctx; 1230 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE, 1231 "default", NULL); 1232 } 1233 return retval; 1234 } 1235 1236 static const char *my_ver_string = E2FSPROGS_VERSION; 1237 static const char *my_ver_date = E2FSPROGS_DATE; 1238 1239 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx) 1240 { 1241 struct mmp_struct *mmp_s; 1242 unsigned int mmp_check_interval; 1243 errcode_t retval = 0; 1244 struct problem_context pctx; 1245 unsigned int wait_time = 0; 1246 1247 clear_problem_context(&pctx); 1248 if (fs->mmp_buf == NULL) { 1249 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf); 1250 if (retval) 1251 goto check_error; 1252 } 1253 1254 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf); 1255 if (retval) 1256 goto check_error; 1257 1258 mmp_s = fs->mmp_buf; 1259 1260 mmp_check_interval = fs->super->s_mmp_update_interval; 1261 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL) 1262 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL; 1263 1264 /* 1265 * If check_interval in MMP block is larger, use that instead of 1266 * check_interval from the superblock. 1267 */ 1268 if (mmp_s->mmp_check_interval > mmp_check_interval) 1269 mmp_check_interval = mmp_s->mmp_check_interval; 1270 1271 wait_time = mmp_check_interval * 2 + 1; 1272 1273 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN) 1274 retval = 0; 1275 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK) 1276 retval = EXT2_ET_MMP_FSCK_ON; 1277 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX) 1278 retval = EXT2_ET_MMP_UNKNOWN_SEQ; 1279 1280 if (retval) 1281 goto check_error; 1282 1283 /* Print warning if e2fsck will wait for more than 20 secs. */ 1284 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) { 1285 log_out(ctx, _("MMP interval is %u seconds and total wait " 1286 "time is %u seconds. Please wait...\n"), 1287 mmp_check_interval, wait_time * 2); 1288 } 1289 1290 return 0; 1291 1292 check_error: 1293 1294 if (retval == EXT2_ET_MMP_BAD_BLOCK) { 1295 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) { 1296 fs->super->s_mmp_block = 0; 1297 ext2fs_mark_super_dirty(fs); 1298 retval = 0; 1299 } 1300 } else if (retval == EXT2_ET_MMP_FAILED) { 1301 com_err(ctx->program_name, retval, "%s", 1302 _("while checking MMP block")); 1303 dump_mmp_msg(fs->mmp_buf, NULL); 1304 } else if (retval == EXT2_ET_MMP_FSCK_ON || 1305 retval == EXT2_ET_MMP_UNKNOWN_SEQ) { 1306 com_err(ctx->program_name, retval, "%s", 1307 _("while checking MMP block")); 1308 dump_mmp_msg(fs->mmp_buf, 1309 _("If you are sure the filesystem is not " 1310 "in use on any node, run:\n" 1311 "'tune2fs -f -E clear_mmp %s'\n"), 1312 ctx->device_name); 1313 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) { 1314 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) { 1315 ext2fs_mmp_clear(fs); 1316 retval = 0; 1317 } 1318 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) { 1319 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) { 1320 ext2fs_mmp_clear(fs); 1321 retval = 0; 1322 } 1323 } else 1324 com_err(ctx->program_name, retval, "%s", 1325 _("while reading MMP block")); 1326 return retval; 1327 } 1328 1329 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr) 1330 { 1331 errcode_t retval = ENOMEM; 1332 char *tdb_dir = NULL, *tdb_file = NULL; 1333 char *dev_name, *tmp_name; 1334 int free_tdb_dir = 0; 1335 1336 /* (re)open a specific undo file */ 1337 if (ctx->undo_file && ctx->undo_file[0] != 0) { 1338 retval = set_undo_io_backing_manager(*io_ptr); 1339 if (retval) 1340 goto err; 1341 *io_ptr = undo_io_manager; 1342 retval = set_undo_io_backup_file(ctx->undo_file); 1343 if (retval) 1344 goto err; 1345 printf(_("Overwriting existing filesystem; this can be undone " 1346 "using the command:\n" 1347 " e2undo %s %s\n\n"), 1348 ctx->undo_file, ctx->filesystem_name); 1349 return retval; 1350 } 1351 1352 /* 1353 * Configuration via a conf file would be 1354 * nice 1355 */ 1356 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1357 if (!tdb_dir) { 1358 profile_get_string(ctx->profile, "defaults", 1359 "undo_dir", 0, "/var/lib/e2fsprogs", 1360 &tdb_dir); 1361 free_tdb_dir = 1; 1362 } 1363 1364 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1365 access(tdb_dir, W_OK)) { 1366 if (free_tdb_dir) 1367 free(tdb_dir); 1368 return 0; 1369 } 1370 1371 tmp_name = strdup(ctx->filesystem_name); 1372 if (!tmp_name) 1373 goto errout; 1374 dev_name = basename(tmp_name); 1375 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1); 1376 if (!tdb_file) { 1377 free(tmp_name); 1378 goto errout; 1379 } 1380 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name); 1381 free(tmp_name); 1382 1383 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) { 1384 retval = errno; 1385 com_err(ctx->program_name, retval, 1386 _("while trying to delete %s"), tdb_file); 1387 goto errout; 1388 } 1389 1390 retval = set_undo_io_backing_manager(*io_ptr); 1391 if (retval) 1392 goto errout; 1393 *io_ptr = undo_io_manager; 1394 retval = set_undo_io_backup_file(tdb_file); 1395 if (retval) 1396 goto errout; 1397 printf(_("Overwriting existing filesystem; this can be undone " 1398 "using the command:\n" 1399 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name); 1400 1401 if (free_tdb_dir) 1402 free(tdb_dir); 1403 free(tdb_file); 1404 return 0; 1405 1406 errout: 1407 if (free_tdb_dir) 1408 free(tdb_dir); 1409 free(tdb_file); 1410 err: 1411 com_err(ctx->program_name, retval, "%s", 1412 _("while trying to setup undo file\n")); 1413 return retval; 1414 } 1415 1416 int main (int argc, char *argv[]) 1417 { 1418 errcode_t retval = 0, retval2 = 0, orig_retval = 0; 1419 int exit_value = FSCK_OK; 1420 ext2_filsys fs = 0; 1421 io_manager io_ptr; 1422 struct ext2_super_block *sb; 1423 const char *lib_ver_date; 1424 int my_ver, lib_ver; 1425 e2fsck_t ctx; 1426 blk64_t orig_superblock = ~(blk64_t)0; 1427 struct problem_context pctx; 1428 int flags, run_result, was_changed; 1429 int journal_size; 1430 int sysval, sys_page_size = 4096; 1431 int old_bitmaps; 1432 __u32 features[3]; 1433 char *cp; 1434 enum quota_type qtype; 1435 struct ext2fs_journal_params jparams; 1436 1437 clear_problem_context(&pctx); 1438 sigcatcher_setup(); 1439 #ifdef MTRACE 1440 mtrace(); 1441 #endif 1442 #ifdef MCHECK 1443 mcheck(0); 1444 #endif 1445 #ifdef ENABLE_NLS 1446 setlocale(LC_MESSAGES, ""); 1447 setlocale(LC_CTYPE, ""); 1448 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1449 textdomain(NLS_CAT_NAME); 1450 set_com_err_gettext(gettext); 1451 #endif 1452 my_ver = ext2fs_parse_version_string(my_ver_string); 1453 lib_ver = ext2fs_get_library_version(0, &lib_ver_date); 1454 if (my_ver > lib_ver) { 1455 fprintf( stderr, "%s", 1456 _("Error: ext2fs library version out of date!\n")); 1457 show_version_only++; 1458 } 1459 1460 retval = PRS(argc, argv, &ctx); 1461 if (retval) { 1462 com_err("e2fsck", retval, "%s", 1463 _("while trying to initialize program")); 1464 exit(FSCK_ERROR); 1465 } 1466 reserve_stdio_fds(); 1467 1468 set_up_logging(ctx); 1469 if (ctx->logf) { 1470 int i; 1471 1472 fputs("E2fsck run: ", ctx->logf); 1473 for (i = 0; i < argc; i++) { 1474 if (i) 1475 fputc(' ', ctx->logf); 1476 fputs(argv[i], ctx->logf); 1477 } 1478 fputc('\n', ctx->logf); 1479 } 1480 if (ctx->problem_logf) { 1481 int i; 1482 1483 fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n", 1484 ctx->problem_logf); 1485 fprintf(ctx->problem_logf, "<problem_log time=\"%lu\">\n", 1486 (unsigned long) ctx->now); 1487 fprintf(ctx->problem_logf, "<invocation prog=\"%s\"", 1488 argv[0]); 1489 for (i = 1; i < argc; i++) 1490 fprintf(ctx->problem_logf, " arg%d=\"%s\"", i, argv[i]); 1491 fputs("/>\n", ctx->problem_logf); 1492 } 1493 1494 init_resource_track(&ctx->global_rtrack, NULL); 1495 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only) 1496 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string, 1497 my_ver_date); 1498 1499 if (show_version_only) { 1500 log_err(ctx, _("\tUsing %s, %s\n"), 1501 error_message(EXT2_ET_BASE), lib_ver_date); 1502 exit(FSCK_OK); 1503 } 1504 1505 check_mount(ctx); 1506 1507 if (!(ctx->options & E2F_OPT_PREEN) && 1508 !(ctx->options & E2F_OPT_NO) && 1509 !(ctx->options & E2F_OPT_YES)) { 1510 if (!ctx->interactive) 1511 fatal_error(ctx, 1512 _("need terminal for interactive repairs")); 1513 } 1514 ctx->superblock = ctx->use_superblock; 1515 1516 flags = EXT2_FLAG_SKIP_MMP | EXT2_FLAG_THREADS; 1517 restart: 1518 #ifdef CONFIG_TESTIO_DEBUG 1519 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1520 io_ptr = test_io_manager; 1521 test_io_backing_manager = unix_io_manager; 1522 } else 1523 #endif 1524 io_ptr = unix_io_manager; 1525 flags |= EXT2_FLAG_NOFREE_ON_ERROR; 1526 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0, 1527 &old_bitmaps); 1528 if (!old_bitmaps) 1529 flags |= EXT2_FLAG_64BITS; 1530 if ((ctx->options & E2F_OPT_READONLY) == 0) { 1531 flags |= EXT2_FLAG_RW; 1532 if (!(ctx->mount_flags & EXT2_MF_ISROOT && 1533 ctx->mount_flags & EXT2_MF_READONLY)) 1534 flags |= EXT2_FLAG_EXCLUSIVE; 1535 if ((ctx->mount_flags & EXT2_MF_READONLY) && 1536 (ctx->options & E2F_OPT_FORCE)) 1537 flags &= ~EXT2_FLAG_EXCLUSIVE; 1538 } 1539 1540 if (ctx->undo_file) { 1541 retval = e2fsck_setup_tdb(ctx, &io_ptr); 1542 if (retval) 1543 exit(FSCK_ERROR); 1544 } 1545 1546 ctx->openfs_flags = flags; 1547 retval = try_open_fs(ctx, flags, io_ptr, &fs); 1548 1549 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) && 1550 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) && 1551 ((retval == EXT2_ET_BAD_MAGIC) || 1552 (retval == EXT2_ET_SB_CSUM_INVALID) || 1553 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) || 1554 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) { 1555 if (retval) { 1556 pctx.errcode = retval; 1557 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx); 1558 } 1559 if (retval2) { 1560 pctx.errcode = retval2; 1561 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx); 1562 } 1563 pctx.errcode = 0; 1564 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) { 1565 retval = retval2; 1566 goto failure; 1567 } 1568 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) { 1569 ext2fs_free(fs); 1570 fs = NULL; 1571 } 1572 if (!fs || (fs->group_desc_count > 1)) { 1573 log_out(ctx, _("%s: %s trying backup blocks...\n"), 1574 ctx->program_name, 1575 retval ? _("Superblock invalid,") : 1576 _("Group descriptors look bad...")); 1577 orig_superblock = ctx->superblock; 1578 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr); 1579 if (fs) 1580 ext2fs_close_free(&fs); 1581 orig_retval = retval; 1582 retval = try_open_fs(ctx, flags, io_ptr, &fs); 1583 if ((orig_retval == 0) && retval != 0) { 1584 if (fs) 1585 ext2fs_close_free(&fs); 1586 log_out(ctx, _("%s: %s while using the " 1587 "backup blocks"), 1588 ctx->program_name, 1589 error_message(retval)); 1590 log_out(ctx, _("%s: going back to original " 1591 "superblock\n"), 1592 ctx->program_name); 1593 ctx->superblock = orig_superblock; 1594 retval = try_open_fs(ctx, flags, io_ptr, &fs); 1595 } 1596 } 1597 } 1598 if (((retval == EXT2_ET_UNSUPP_FEATURE) || 1599 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) && 1600 fs && fs->super) { 1601 sb = fs->super; 1602 features[0] = (sb->s_feature_compat & 1603 ~EXT2_LIB_FEATURE_COMPAT_SUPP); 1604 features[1] = (sb->s_feature_incompat & 1605 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP); 1606 features[2] = (sb->s_feature_ro_compat & 1607 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP); 1608 if (features[0] || features[1] || features[2]) 1609 goto print_unsupp_features; 1610 } 1611 failure: 1612 if (retval) { 1613 if (orig_retval) 1614 retval = orig_retval; 1615 com_err(ctx->program_name, retval, _("while trying to open %s"), 1616 ctx->filesystem_name); 1617 if (retval == EXT2_ET_REV_TOO_HIGH) { 1618 log_out(ctx, "%s", 1619 _("The filesystem revision is apparently " 1620 "too high for this version of e2fsck.\n" 1621 "(Or the filesystem superblock " 1622 "is corrupt)\n\n")); 1623 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); 1624 } else if (retval == EXT2_ET_SHORT_READ) 1625 log_out(ctx, "%s", 1626 _("Could this be a zero-length partition?\n")); 1627 else if ((retval == EPERM) || (retval == EACCES)) 1628 log_out(ctx, _("You must have %s access to the " 1629 "filesystem or be root\n"), 1630 (ctx->options & E2F_OPT_READONLY) ? 1631 "r/o" : "r/w"); 1632 else if (retval == ENXIO) 1633 log_out(ctx, "%s", 1634 _("Possibly non-existent or swap device?\n")); 1635 else if (retval == EBUSY) 1636 log_out(ctx, "%s", _("Filesystem mounted or opened " 1637 "exclusively by another program?\n")); 1638 else if (retval == ENOENT) 1639 log_out(ctx, "%s", 1640 _("Possibly non-existent device?\n")); 1641 #ifdef EROFS 1642 else if (retval == EROFS) 1643 log_out(ctx, "%s", _("Disk write-protected; use the " 1644 "-n option to do a read-only\n" 1645 "check of the device.\n")); 1646 #endif 1647 else { 1648 /* 1649 * Let's try once more will less consistency checking 1650 * so that we are able to recover from more errors 1651 * (e.g. some tool messing up some value in the sb). 1652 */ 1653 if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) && 1654 !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) { 1655 if (fs) 1656 ext2fs_close_free(&fs); 1657 log_out(ctx, _("%s: Trying to load superblock " 1658 "despite errors...\n"), 1659 ctx->program_name); 1660 flags |= EXT2_FLAG_IGNORE_SB_ERRORS; 1661 /* 1662 * If we tried backup sb, revert to the 1663 * original one now. 1664 */ 1665 if (orig_superblock != ~(blk64_t)0) 1666 ctx->superblock = orig_superblock; 1667 goto restart; 1668 } 1669 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); 1670 if (retval == EXT2_ET_BAD_MAGIC) 1671 check_plausibility(ctx->filesystem_name, 1672 CHECK_FS_EXIST, NULL); 1673 } 1674 fatal_error(ctx, 0); 1675 } 1676 /* 1677 * We only update the master superblock because (a) paranoia; 1678 * we don't want to corrupt the backup superblocks, and (b) we 1679 * don't need to update the mount count and last checked 1680 * fields in the backup superblock (the kernel doesn't update 1681 * the backup superblocks anyway). With newer versions of the 1682 * library this flag is set by ext2fs_open2(), but we set this 1683 * here just to be sure. (No, we don't support e2fsck running 1684 * with some other libext2fs than the one that it was shipped 1685 * with, but just in case....) 1686 */ 1687 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY; 1688 1689 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) { 1690 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super); 1691 int need_restart = 0; 1692 1693 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name, 1694 blocksize, 1695 &ctx->num_blocks); 1696 /* 1697 * The floppy driver refuses to allow anyone else to 1698 * open the device if has been opened with O_EXCL; 1699 * this is unlike other block device drivers in Linux. 1700 * To handle this, we close the filesystem and then 1701 * reopen the filesystem after we get the device size. 1702 */ 1703 if (pctx.errcode == EBUSY) { 1704 ext2fs_close_free(&fs); 1705 need_restart++; 1706 pctx.errcode = 1707 ext2fs_get_device_size2(ctx->filesystem_name, 1708 blocksize, 1709 &ctx->num_blocks); 1710 } 1711 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED) 1712 ctx->num_blocks = 0; 1713 else if (pctx.errcode) { 1714 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx); 1715 ctx->flags |= E2F_FLAG_ABORT; 1716 fatal_error(ctx, 0); 1717 } 1718 ctx->flags |= E2F_FLAG_GOT_DEVSIZE; 1719 if (need_restart) 1720 goto restart; 1721 } 1722 1723 ctx->fs = fs; 1724 fs->now = ctx->now; 1725 sb = fs->super; 1726 1727 if (sb->s_rev_level > E2FSCK_CURRENT_REV) { 1728 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH, 1729 _("while trying to open %s"), 1730 ctx->filesystem_name); 1731 get_newer: 1732 fatal_error(ctx, _("Get a newer version of e2fsck!")); 1733 } 1734 1735 /* 1736 * Set the device name, which is used whenever we print error 1737 * or informational messages to the user. 1738 */ 1739 if (ctx->device_name == 0 && sb->s_volume_name[0]) 1740 ctx->device_name = string_copy(ctx, (char *) sb->s_volume_name, 1741 sizeof(sb->s_volume_name)); 1742 1743 if (ctx->device_name == 0) 1744 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0); 1745 for (cp = ctx->device_name; *cp; cp++) 1746 if (isspace(*cp) || *cp == ':') 1747 *cp = '_'; 1748 1749 if (ctx->problem_logf) { 1750 1751 fprintf(ctx->problem_logf, "<filesystem dev=\"%s\"", 1752 ctx->filesystem_name); 1753 if (!uuid_is_null(sb->s_uuid)) { 1754 char buf[48]; 1755 1756 uuid_unparse(sb->s_uuid, buf); 1757 fprintf(ctx->problem_logf, " uuid=\"%s\"", buf); 1758 } 1759 if (sb->s_volume_name[0]) 1760 fprintf(ctx->problem_logf, " label=\"%.*s\"", 1761 EXT2_LEN_STR(sb->s_volume_name)); 1762 1763 fputs("/>\n", ctx->problem_logf); 1764 } 1765 1766 ehandler_init(fs->io); 1767 1768 if (ext2fs_has_feature_mmp(fs->super) && 1769 (flags & EXT2_FLAG_SKIP_MMP)) { 1770 if (e2fsck_check_mmp(fs, ctx)) 1771 fatal_error(ctx, 0); 1772 1773 /* 1774 * Restart in order to reopen fs but this time start mmp. 1775 */ 1776 ext2fs_close_free(&ctx->fs); 1777 flags &= ~EXT2_FLAG_SKIP_MMP; 1778 goto restart; 1779 } 1780 1781 if (ctx->logf) 1782 fprintf(ctx->logf, "Filesystem UUID: %s\n", 1783 e2p_uuid2str(sb->s_uuid)); 1784 1785 /* 1786 * Make sure the ext3 superblock fields are consistent. 1787 */ 1788 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) { 1789 retval = e2fsck_check_ext3_journal(ctx); 1790 if (retval) { 1791 com_err(ctx->program_name, retval, 1792 _("while checking journal for %s"), 1793 ctx->device_name); 1794 fatal_error(ctx, 1795 _("Cannot proceed with file system check")); 1796 } 1797 } 1798 1799 /* 1800 * Check to see if we need to do ext3-style recovery. If so, 1801 * do it, and then restart the fsck. 1802 */ 1803 if (ext2fs_has_feature_journal_needs_recovery(sb)) { 1804 if (ctx->options & E2F_OPT_READONLY) { 1805 log_out(ctx, "%s", 1806 _("Warning: skipping journal recovery because " 1807 "doing a read-only filesystem check.\n")); 1808 io_channel_flush(ctx->fs->io); 1809 } else { 1810 if (ctx->flags & E2F_FLAG_RESTARTED) { 1811 /* 1812 * Whoops, we attempted to run the 1813 * journal twice. This should never 1814 * happen, unless the hardware or 1815 * device driver is being bogus. 1816 */ 1817 com_err(ctx->program_name, 0, 1818 _("unable to set superblock flags " 1819 "on %s\n"), ctx->device_name); 1820 fatal_error(ctx, 0); 1821 } 1822 retval = e2fsck_run_ext3_journal(ctx); 1823 if (retval == EFSBADCRC) { 1824 log_out(ctx, _("Journal checksum error " 1825 "found in %s\n"), 1826 ctx->device_name); 1827 } else if (retval == EFSCORRUPTED) { 1828 log_out(ctx, _("Journal corrupted in %s\n"), 1829 ctx->device_name); 1830 } else if (retval) { 1831 com_err(ctx->program_name, retval, 1832 _("while recovering journal of %s"), 1833 ctx->device_name); 1834 } 1835 ext2fs_close_free(&ctx->fs); 1836 ctx->flags |= E2F_FLAG_RESTARTED; 1837 goto restart; 1838 } 1839 } 1840 1841 /* 1842 * Check for compatibility with the feature sets. We need to 1843 * be more stringent than ext2fs_open(). 1844 */ 1845 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP; 1846 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP; 1847 features[2] = (sb->s_feature_ro_compat & 1848 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP); 1849 print_unsupp_features: 1850 if (features[0] || features[1] || features[2]) { 1851 int i, j; 1852 __u32 *mask = features, m; 1853 1854 log_err(ctx, _("%s has unsupported feature(s):"), 1855 ctx->filesystem_name); 1856 1857 for (i=0; i <3; i++,mask++) { 1858 for (j=0,m=1; j < 32; j++, m<<=1) { 1859 if (*mask & m) 1860 log_err(ctx, " %s", 1861 e2p_feature2string(i, m)); 1862 } 1863 } 1864 log_err(ctx, "\n"); 1865 goto get_newer; 1866 } 1867 1868 if (ext2fs_has_feature_casefold(sb) && !fs->encoding) { 1869 log_err(ctx, _("%s has unsupported encoding: %0x\n"), 1870 ctx->filesystem_name, sb->s_encoding); 1871 goto get_newer; 1872 } 1873 1874 /* 1875 * If the user specified a specific superblock, presumably the 1876 * master superblock has been trashed. So we mark the 1877 * superblock as dirty, so it can be written out. 1878 */ 1879 if (ctx->superblock && 1880 !(ctx->options & E2F_OPT_READONLY)) 1881 ext2fs_mark_super_dirty(fs); 1882 1883 /* 1884 * Calculate the number of filesystem blocks per pagesize. If 1885 * fs->blocksize > page_size, set the number of blocks per 1886 * pagesize to 1 to avoid division by zero errors. 1887 */ 1888 #ifdef _SC_PAGESIZE 1889 sysval = sysconf(_SC_PAGESIZE); 1890 if (sysval > 0) 1891 sys_page_size = sysval; 1892 #endif /* _SC_PAGESIZE */ 1893 ctx->blocks_per_page = sys_page_size / fs->blocksize; 1894 if (ctx->blocks_per_page == 0) 1895 ctx->blocks_per_page = 1; 1896 1897 if (ctx->superblock) 1898 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0); 1899 ext2fs_mark_valid(fs); 1900 check_super_block(ctx); 1901 if (ctx->flags & E2F_FLAG_SIGNAL_MASK) 1902 fatal_error(ctx, 0); 1903 check_if_skip(ctx); 1904 check_resize_inode(ctx); 1905 if (bad_blocks_file) 1906 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks); 1907 else if (cflag) 1908 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */ 1909 if (ctx->flags & E2F_FLAG_SIGNAL_MASK) 1910 fatal_error(ctx, 0); 1911 1912 /* 1913 * Mark the system as valid, 'til proven otherwise 1914 */ 1915 ext2fs_mark_valid(fs); 1916 1917 retval = ext2fs_read_bb_inode(fs, &fs->badblocks); 1918 if (retval) { 1919 log_out(ctx, _("%s: %s while reading bad blocks inode\n"), 1920 ctx->program_name, error_message(retval)); 1921 preenhalt(ctx); 1922 log_out(ctx, "%s", _("This doesn't bode well, " 1923 "but we'll try to go on...\n")); 1924 } 1925 1926 /* 1927 * Save the journal size in megabytes. 1928 * Try and use the journal size from the backup else let e2fsck 1929 * find the default journal size. If fast commit feature is enabled, 1930 * it is not clear how many of the journal blocks were fast commit 1931 * blocks. So, ignore the size of journal found in backup. 1932 * 1933 * TODO: Add a new backup type that captures fast commit info as 1934 * well. 1935 */ 1936 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS && 1937 !ext2fs_has_feature_fast_commit(sb)) 1938 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) | 1939 (sb->s_jnl_blocks[16] >> 20); 1940 else 1941 journal_size = -1; 1942 1943 if (ext2fs_has_feature_quota(sb)) { 1944 /* Quotas were enabled. Do quota accounting during fsck. */ 1945 clear_problem_context(&pctx); 1946 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0); 1947 if (pctx.errcode) { 1948 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx); 1949 fatal_error(ctx, 0); 1950 } 1951 } 1952 1953 run_result = e2fsck_run(ctx); 1954 e2fsck_clear_progbar(ctx); 1955 1956 if (!ctx->invalid_bitmaps && 1957 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) { 1958 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) { 1959 if (journal_size < 1024) { 1960 ext2fs_get_journal_params(&jparams, fs); 1961 } else { 1962 jparams.num_journal_blocks = journal_size; 1963 jparams.num_fc_blocks = 0; 1964 } 1965 log_out(ctx, _("Creating journal (%d blocks): "), 1966 jparams.num_journal_blocks); 1967 fflush(stdout); 1968 retval = ext2fs_add_journal_inode3(fs, &jparams, ~0ULL, 0); 1969 if (retval) { 1970 log_out(ctx, "%s: while trying to create " 1971 "journal\n", error_message(retval)); 1972 goto no_journal; 1973 } 1974 log_out(ctx, "%s", _(" Done.\n")); 1975 log_out(ctx, "%s", 1976 _("\n*** journal has been regenerated ***\n")); 1977 } 1978 } 1979 no_journal: 1980 1981 if (run_result & E2F_FLAG_ABORT) { 1982 fatal_error(ctx, _("aborted")); 1983 } else if (run_result & E2F_FLAG_CANCEL) { 1984 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ? 1985 ctx->device_name : ctx->filesystem_name); 1986 exit_value |= FSCK_CANCELED; 1987 } else if (ctx->qctx && !ctx->invalid_bitmaps) { 1988 int needs_writeout; 1989 1990 for (qtype = 0; qtype < MAXQUOTAS; qtype++) { 1991 if (*quota_sb_inump(sb, qtype) == 0) 1992 continue; 1993 needs_writeout = 0; 1994 pctx.num = qtype; 1995 retval = quota_compare_and_update(ctx->qctx, qtype, 1996 &needs_writeout); 1997 if ((retval || needs_writeout) && 1998 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) { 1999 pctx.errcode = quota_write_inode(ctx->qctx, 2000 1 << qtype); 2001 if (pctx.errcode) 2002 (void) fix_problem(ctx, 2003 PR_6_WRITE_QUOTAS, &pctx); 2004 } 2005 } 2006 quota_release_context(&ctx->qctx); 2007 } 2008 2009 if (run_result == E2F_FLAG_RESTART) { 2010 log_out(ctx, "%s", 2011 _("Restarting e2fsck from the beginning...\n")); 2012 retval = e2fsck_reset_context(ctx); 2013 if (retval) { 2014 com_err(ctx->program_name, retval, "%s", 2015 _("while resetting context")); 2016 fatal_error(ctx, 0); 2017 } 2018 ext2fs_close_free(&ctx->fs); 2019 goto restart; 2020 } 2021 2022 #ifdef MTRACE 2023 mtrace_print("Cleanup"); 2024 #endif 2025 was_changed = ext2fs_test_changed(fs); 2026 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) && 2027 !(ctx->options & E2F_OPT_READONLY)) { 2028 if (ext2fs_test_valid(fs)) { 2029 if (!(sb->s_state & EXT2_VALID_FS)) 2030 exit_value |= FSCK_NONDESTRUCT; 2031 sb->s_state = EXT2_VALID_FS; 2032 if (check_backup_super_block(ctx)) 2033 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 2034 } else 2035 sb->s_state &= ~EXT2_VALID_FS; 2036 if (!(ctx->flags & E2F_FLAG_TIME_INSANE)) 2037 sb->s_lastcheck = ctx->now; 2038 sb->s_mnt_count = 0; 2039 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN); 2040 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs); 2041 if (pctx.errcode) 2042 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx); 2043 ext2fs_mark_super_dirty(fs); 2044 } 2045 2046 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) && 2047 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) && 2048 (ctx->options & E2F_OPT_NO)) 2049 /* Don't try to write or flush I/O, we just wanted to know whether or 2050 * not there were enough free blocks to undo deduplication. 2051 */ 2052 goto skip_write; 2053 2054 if (!(ctx->options & E2F_OPT_READONLY)) { 2055 e2fsck_write_bitmaps(ctx); 2056 if (fs->flags & EXT2_FLAG_DIRTY) { 2057 pctx.errcode = ext2fs_flush(ctx->fs); 2058 if (pctx.errcode) 2059 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx); 2060 } 2061 pctx.errcode = io_channel_flush(ctx->fs->io); 2062 if (pctx.errcode) 2063 fix_problem(ctx, PR_6_IO_FLUSH, &pctx); 2064 } 2065 2066 if (was_changed) { 2067 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED); 2068 2069 if (fs_fixed) 2070 exit_value |= FSCK_NONDESTRUCT; 2071 if (!(ctx->options & E2F_OPT_PREEN)) { 2072 #if 0 /* Do this later; it breaks too many tests' golden outputs */ 2073 log_out(ctx, fs_fixed ? 2074 _("\n%s: ***** FILE SYSTEM ERRORS " 2075 "CORRECTED *****\n") : 2076 _("%s: File system was modified.\n"), 2077 ctx->device_name); 2078 #else 2079 log_out(ctx, 2080 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"), 2081 ctx->device_name); 2082 #endif 2083 } 2084 if (ctx->mount_flags & EXT2_MF_ISROOT) { 2085 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"), 2086 ctx->device_name); 2087 exit_value |= FSCK_REBOOT; 2088 } 2089 } 2090 2091 skip_write: 2092 if (!ext2fs_test_valid(fs) || 2093 ((exit_value & FSCK_CANCELED) && 2094 (sb->s_state & EXT2_ERROR_FS))) { 2095 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has " 2096 "errors **********\n\n"), ctx->device_name); 2097 exit_value |= FSCK_UNCORRECTED; 2098 exit_value &= ~FSCK_NONDESTRUCT; 2099 } 2100 if (exit_value & FSCK_CANCELED) { 2101 int allow_cancellation; 2102 2103 profile_get_boolean(ctx->profile, "options", 2104 "allow_cancellation", 0, 0, 2105 &allow_cancellation); 2106 exit_value &= ~FSCK_NONDESTRUCT; 2107 if (allow_cancellation && ext2fs_test_valid(fs) && 2108 (sb->s_state & EXT2_VALID_FS) && 2109 !(sb->s_state & EXT2_ERROR_FS)) 2110 exit_value = 0; 2111 } else 2112 show_stats(ctx); 2113 2114 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io); 2115 2116 ext2fs_close_free(&ctx->fs); 2117 free(ctx->journal_name); 2118 2119 if (ctx->logf) 2120 fprintf(ctx->logf, "Exit status: %d\n", exit_value); 2121 e2fsck_free_context(ctx); 2122 remove_error_table(&et_ext2_error_table); 2123 remove_error_table(&et_prof_error_table); 2124 return exit_value; 2125 } 2126