unix.c revision 6dc64392c052839f373b7bbbb58efa3048bfb355
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 <stdio.h> 15#ifdef HAVE_STDLIB_H 16#include <stdlib.h> 17#endif 18#include <string.h> 19#include <fcntl.h> 20#include <ctype.h> 21#include <time.h> 22#ifdef HAVE_SIGNAL_H 23#include <signal.h> 24#endif 25#ifdef HAVE_GETOPT_H 26#include <getopt.h> 27#else 28extern char *optarg; 29extern int optind; 30#endif 31#include <unistd.h> 32#ifdef HAVE_ERRNO_H 33#include <errno.h> 34#endif 35#ifdef HAVE_MNTENT_H 36#include <mntent.h> 37#endif 38#ifdef HAVE_SYS_IOCTL_H 39#include <sys/ioctl.h> 40#endif 41#ifdef HAVE_MALLOC_H 42#include <malloc.h> 43#endif 44#ifdef HAVE_SYS_TYPES_H 45#include <sys/types.h> 46#endif 47#ifdef HAVE_DIRENT_H 48#include <dirent.h> 49#endif 50 51#include "e2p/e2p.h" 52#include "et/com_err.h" 53#include "e2p/e2p.h" 54#include "e2fsck.h" 55#include "problem.h" 56#include "../version.h" 57 58/* Command line options */ 59static int cflag; /* check disk */ 60static int show_version_only; 61static int verbose; 62 63static int replace_bad_blocks; 64static int keep_bad_blocks; 65static char *bad_blocks_file; 66 67e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */ 68 69#ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jfs-debug */ 70int journal_enable_debug = -1; 71#endif 72 73static void usage(e2fsck_t ctx) 74{ 75 fprintf(stderr, 76 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n" 77 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n" 78 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n" 79 "\t\t[-E extended-options] device\n"), 80 ctx->program_name); 81 82 fprintf(stderr, _("\nEmergency help:\n" 83 " -p Automatic repair (no questions)\n" 84 " -n Make no changes to the filesystem\n" 85 " -y Assume \"yes\" to all questions\n" 86 " -c Check for bad blocks and add them to the badblock list\n" 87 " -f Force checking even if filesystem is marked clean\n")); 88 fprintf(stderr, _("" 89 " -v Be verbose\n" 90 " -b superblock Use alternative superblock\n" 91 " -B blocksize Force blocksize when looking for superblock\n" 92 " -j external_journal Set location of the external journal\n" 93 " -l bad_blocks_file Add to badblocks list\n" 94 " -L bad_blocks_file Set badblocks list\n" 95 )); 96 97 exit(FSCK_USAGE); 98} 99 100static 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 int frag_percent_file, frag_percent_dir, frag_percent_total; 108 int i, j; 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 printf(_("%s: %u/%u files (%0d.%d%% non-contiguous), %llu/%llu blocks\n"), 133 ctx->device_name, inodes_used, inodes, 134 frag_percent_total / 10, frag_percent_total % 10, 135 blocks_used, blocks); 136 return; 137 } 138 printf (P_("\n%8u inode used (%2.2f%%)\n", "\n%8u inodes used (%2.2f%%)\n", 139 inodes_used), inodes_used, 100.0 * inodes_used / inodes); 140 printf (P_("%8u non-contiguous file (%0d.%d%%)\n", 141 "%8u non-contiguous files (%0d.%d%%)\n", 142 ctx->fs_fragmented), 143 ctx->fs_fragmented, frag_percent_file / 10, 144 frag_percent_file % 10); 145 printf (P_("%8u non-contiguous directory (%0d.%d%%)\n", 146 "%8u non-contiguous directories (%0d.%d%%)\n", 147 ctx->fs_fragmented_dir), 148 ctx->fs_fragmented_dir, frag_percent_dir / 10, 149 frag_percent_dir % 10); 150 printf (_(" # of inodes with ind/dind/tind blocks: %u/%u/%u\n"), 151 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count); 152 153 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--) 154 if (ctx->extent_depth_count[j]) 155 break; 156 if (++j) { 157 printf (_(" Extent depth histogram: ")); 158 for (i=0; i < j; i++) { 159 if (i) 160 fputc('/', stdout); 161 printf("%u", ctx->extent_depth_count[i]); 162 } 163 fputc('\n', stdout); 164 } 165 166 printf (P_("%8llu block used (%2.2f%%)\n", 167 "%8llu blocks used (%2.2f%%)\n", 168 blocks_used), blocks_used, 100.0 * blocks_used / blocks); 169 printf (P_("%8u bad block\n", "%8u bad blocks\n", 170 ctx->fs_badblocks_count), ctx->fs_badblocks_count); 171 printf (P_("%8u large file\n", "%8u large files\n", 172 ctx->large_files), ctx->large_files); 173 printf (P_("\n%8u regular file\n", "\n%8u regular files\n", 174 ctx->fs_regular_count), ctx->fs_regular_count); 175 printf (P_("%8u directory\n", "%8u directories\n", 176 ctx->fs_directory_count), ctx->fs_directory_count); 177 printf (P_("%8u character device file\n", 178 "%8u character device files\n", ctx->fs_chardev_count), 179 ctx->fs_chardev_count); 180 printf (P_("%8u block device file\n", "%8u block device files\n", 181 ctx->fs_blockdev_count), ctx->fs_blockdev_count); 182 printf (P_("%8u fifo\n", "%8u fifos\n", ctx->fs_fifo_count), 183 ctx->fs_fifo_count); 184 printf (P_("%8u link\n", "%8u links\n", 185 ctx->fs_links_count - dir_links), 186 ctx->fs_links_count - dir_links); 187 printf (P_("%8u symbolic link", "%8u symbolic links", 188 ctx->fs_symlinks_count), ctx->fs_symlinks_count); 189 printf (P_(" (%u fast symbolic link)\n", " (%u fast symbolic links)\n", 190 ctx->fs_fast_symlinks_count), ctx->fs_fast_symlinks_count); 191 printf (P_("%8u socket\n", "%8u sockets\n", ctx->fs_sockets_count), 192 ctx->fs_sockets_count); 193 printf ("--------\n"); 194 printf (P_("%8u file\n", "%8u files\n", 195 ctx->fs_total_count - dir_links), 196 ctx->fs_total_count - dir_links); 197} 198 199static void check_mount(e2fsck_t ctx) 200{ 201 errcode_t retval; 202 int cont; 203 204 retval = ext2fs_check_if_mounted(ctx->filesystem_name, 205 &ctx->mount_flags); 206 if (retval) { 207 com_err("ext2fs_check_if_mount", retval, 208 _("while determining whether %s is mounted."), 209 ctx->filesystem_name); 210 return; 211 } 212 213 /* 214 * If the filesystem isn't mounted, or it's the root 215 * filesystem and it's mounted read-only, and we're not doing 216 * a read/write check, then everything's fine. 217 */ 218 if ((!(ctx->mount_flags & EXT2_MF_MOUNTED)) || 219 ((ctx->mount_flags & EXT2_MF_ISROOT) && 220 (ctx->mount_flags & EXT2_MF_READONLY) && 221 !(ctx->options & E2F_OPT_WRITECHECK))) 222 return; 223 224 if ((ctx->options & E2F_OPT_READONLY) && 225 !(ctx->options & E2F_OPT_WRITECHECK)) { 226 printf(_("Warning! %s is mounted.\n"), ctx->filesystem_name); 227 return; 228 } 229 230 printf(_("%s is mounted. "), ctx->filesystem_name); 231 if (!ctx->interactive) 232 fatal_error(ctx, _("Cannot continue, aborting.\n\n")); 233 printf(_("\n\n\007\007\007\007WARNING!!! " 234 "The filesystem is mounted. If you continue you ***WILL***\n" 235 "cause ***SEVERE*** filesystem damage.\007\007\007\n\n")); 236 cont = ask_yn(_("Do you really want to continue"), -1); 237 if (!cont) { 238 printf (_("check aborted.\n")); 239 exit (0); 240 } 241 return; 242} 243 244static int is_on_batt(void) 245{ 246 FILE *f; 247 DIR *d; 248 char tmp[80], tmp2[80], fname[80]; 249 unsigned int acflag; 250 struct dirent* de; 251 252 f = fopen("/proc/apm", "r"); 253 if (f) { 254 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4) 255 acflag = 1; 256 fclose(f); 257 return (acflag != 1); 258 } 259 d = opendir("/proc/acpi/ac_adapter"); 260 if (d) { 261 while ((de=readdir(d)) != NULL) { 262 if (!strncmp(".", de->d_name, 1)) 263 continue; 264 snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state", 265 de->d_name); 266 f = fopen(fname, "r"); 267 if (!f) 268 continue; 269 if (fscanf(f, "%s %s", tmp2, tmp) != 2) 270 tmp[0] = 0; 271 fclose(f); 272 if (strncmp(tmp, "off-line", 8) == 0) { 273 closedir(d); 274 return 1; 275 } 276 } 277 closedir(d); 278 } 279 return 0; 280} 281 282/* 283 * This routine checks to see if a filesystem can be skipped; if so, 284 * it will exit with E2FSCK_OK. Under some conditions it will print a 285 * message explaining why a check is being forced. 286 */ 287static void check_if_skip(e2fsck_t ctx) 288{ 289 ext2_filsys fs = ctx->fs; 290 const char *reason = NULL; 291 unsigned int reason_arg = 0; 292 long next_check; 293 int batt = is_on_batt(); 294 int defer_check_on_battery; 295 int broken_system_clock; 296 time_t lastcheck; 297 298 profile_get_boolean(ctx->profile, "options", "broken_system_clock", 299 0, 0, &broken_system_clock); 300 if (ctx->flags & E2F_FLAG_TIME_INSANE) 301 broken_system_clock = 1; 302 profile_get_boolean(ctx->profile, "options", 303 "defer_check_on_battery", 0, 1, 304 &defer_check_on_battery); 305 if (!defer_check_on_battery) 306 batt = 0; 307 308 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag) 309 return; 310 311 lastcheck = fs->super->s_lastcheck; 312 if (lastcheck > ctx->now) 313 lastcheck -= ctx->time_fudge; 314 if ((fs->super->s_state & EXT2_ERROR_FS) || 315 !ext2fs_test_valid(fs)) 316 reason = _(" contains a file system with errors"); 317 else if ((fs->super->s_state & EXT2_VALID_FS) == 0) 318 reason = _(" was not cleanly unmounted"); 319 else if (check_backup_super_block(ctx)) 320 reason = _(" primary superblock features different from backup"); 321 else if ((fs->super->s_max_mnt_count > 0) && 322 (fs->super->s_mnt_count >= 323 (unsigned) fs->super->s_max_mnt_count)) { 324 reason = _(" has been mounted %u times without being checked"); 325 reason_arg = fs->super->s_mnt_count; 326 if (batt && (fs->super->s_mnt_count < 327 (unsigned) fs->super->s_max_mnt_count*2)) 328 reason = 0; 329 } else if (!broken_system_clock && fs->super->s_checkinterval && 330 (ctx->now < lastcheck)) { 331 reason = _(" has filesystem last checked time in the future"); 332 if (batt) 333 reason = 0; 334 } else if (!broken_system_clock && fs->super->s_checkinterval && 335 ((ctx->now - lastcheck) >= 336 ((time_t) fs->super->s_checkinterval))) { 337 reason = _(" has gone %u days without being checked"); 338 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24); 339 if (batt && ((ctx->now - fs->super->s_lastcheck) < 340 fs->super->s_checkinterval*2)) 341 reason = 0; 342 } 343 if (reason) { 344 fputs(ctx->device_name, stdout); 345 printf(reason, reason_arg); 346 fputs(_(", check forced.\n"), stdout); 347 return; 348 } 349 printf(_("%s: clean, %u/%u files, %llu/%llu blocks"), ctx->device_name, 350 fs->super->s_inodes_count - fs->super->s_free_inodes_count, 351 fs->super->s_inodes_count, 352 ext2fs_blocks_count(fs->super) - 353 ext2fs_free_blocks_count(fs->super), 354 ext2fs_blocks_count(fs->super)); 355 next_check = 100000; 356 if (fs->super->s_max_mnt_count > 0) { 357 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count; 358 if (next_check <= 0) 359 next_check = 1; 360 } 361 if (!broken_system_clock && fs->super->s_checkinterval && 362 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval)) 363 next_check = 1; 364 if (next_check <= 5) { 365 if (next_check == 1) { 366 if (batt) 367 fputs(_(" (check deferred; on battery)"), 368 stdout); 369 else 370 fputs(_(" (check after next mount)"), stdout); 371 } else 372 printf(_(" (check in %ld mounts)"), next_check); 373 } 374 fputc('\n', stdout); 375 ext2fs_close(fs); 376 ctx->fs = NULL; 377 e2fsck_free_context(ctx); 378 exit(FSCK_OK); 379} 380 381/* 382 * For completion notice 383 */ 384struct percent_tbl { 385 int max_pass; 386 int table[32]; 387}; 388struct percent_tbl e2fsck_tbl = { 389 5, { 0, 70, 90, 92, 95, 100 } 390}; 391static char bar[128], spaces[128]; 392 393static float calc_percent(struct percent_tbl *tbl, int pass, int curr, 394 int max) 395{ 396 float percent; 397 398 if (pass <= 0) 399 return 0.0; 400 if (pass > tbl->max_pass || max == 0) 401 return 100.0; 402 percent = ((float) curr) / ((float) max); 403 return ((percent * (tbl->table[pass] - tbl->table[pass-1])) 404 + tbl->table[pass-1]); 405} 406 407extern void e2fsck_clear_progbar(e2fsck_t ctx) 408{ 409 if (!(ctx->flags & E2F_FLAG_PROG_BAR)) 410 return; 411 412 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80), 413 ctx->stop_meta); 414 fflush(stdout); 415 ctx->flags &= ~E2F_FLAG_PROG_BAR; 416} 417 418int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent, 419 unsigned int dpynum) 420{ 421 static const char spinner[] = "\\|/-"; 422 int i; 423 unsigned int tick; 424 struct timeval tv; 425 int dpywidth; 426 int fixed_percent; 427 428 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS) 429 return 0; 430 431 /* 432 * Calculate the new progress position. If the 433 * percentage hasn't changed, then we skip out right 434 * away. 435 */ 436 fixed_percent = (int) ((10 * percent) + 0.5); 437 if (ctx->progress_last_percent == fixed_percent) 438 return 0; 439 ctx->progress_last_percent = fixed_percent; 440 441 /* 442 * If we've already updated the spinner once within 443 * the last 1/8th of a second, no point doing it 444 * again. 445 */ 446 gettimeofday(&tv, NULL); 447 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8)); 448 if ((tick == ctx->progress_last_time) && 449 (fixed_percent != 0) && (fixed_percent != 1000)) 450 return 0; 451 ctx->progress_last_time = tick; 452 453 /* 454 * Advance the spinner, and note that the progress bar 455 * will be on the screen 456 */ 457 ctx->progress_pos = (ctx->progress_pos+1) & 3; 458 ctx->flags |= E2F_FLAG_PROG_BAR; 459 460 dpywidth = 66 - strlen(label); 461 dpywidth = 8 * (dpywidth / 8); 462 if (dpynum) 463 dpywidth -= 8; 464 465 i = ((percent * dpywidth) + 50) / 100; 466 printf("%s%s: |%s%s", ctx->start_meta, label, 467 bar + (sizeof(bar) - (i+1)), 468 spaces + (sizeof(spaces) - (dpywidth - i + 1))); 469 if (fixed_percent == 1000) 470 fputc('|', stdout); 471 else 472 fputc(spinner[ctx->progress_pos & 3], stdout); 473 printf(" %4.1f%% ", percent); 474 if (dpynum) 475 printf("%u\r", dpynum); 476 else 477 fputs(" \r", stdout); 478 fputs(ctx->stop_meta, stdout); 479 480 if (fixed_percent == 1000) 481 e2fsck_clear_progbar(ctx); 482 fflush(stdout); 483 484 return 0; 485} 486 487static int e2fsck_update_progress(e2fsck_t ctx, int pass, 488 unsigned long cur, unsigned long max) 489{ 490 char buf[1024]; 491 float percent; 492 493 if (pass == 0) 494 return 0; 495 496 if (ctx->progress_fd) { 497 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n", 498 pass, cur, max, ctx->device_name); 499 write_all(ctx->progress_fd, buf, strlen(buf)); 500 } else { 501 percent = calc_percent(&e2fsck_tbl, pass, cur, max); 502 e2fsck_simple_progress(ctx, ctx->device_name, 503 percent, 0); 504 } 505 return 0; 506} 507 508#define PATH_SET "PATH=/sbin" 509 510static void reserve_stdio_fds(void) 511{ 512 int fd; 513 514 while (1) { 515 fd = open("/dev/null", O_RDWR); 516 if (fd > 2) 517 break; 518 if (fd < 0) { 519 fprintf(stderr, _("ERROR: Couldn't open " 520 "/dev/null (%s)\n"), 521 strerror(errno)); 522 break; 523 } 524 } 525 close(fd); 526} 527 528#ifdef HAVE_SIGNAL_H 529static void signal_progress_on(int sig EXT2FS_ATTR((unused))) 530{ 531 e2fsck_t ctx = e2fsck_global_ctx; 532 533 if (!ctx) 534 return; 535 536 ctx->progress = e2fsck_update_progress; 537} 538 539static void signal_progress_off(int sig EXT2FS_ATTR((unused))) 540{ 541 e2fsck_t ctx = e2fsck_global_ctx; 542 543 if (!ctx) 544 return; 545 546 e2fsck_clear_progbar(ctx); 547 ctx->progress = 0; 548} 549 550static void signal_cancel(int sig EXT2FS_ATTR((unused))) 551{ 552 e2fsck_t ctx = e2fsck_global_ctx; 553 554 if (!ctx) 555 exit(FSCK_CANCELED); 556 557 ctx->flags |= E2F_FLAG_CANCEL; 558} 559#endif 560 561static void parse_extended_opts(e2fsck_t ctx, const char *opts) 562{ 563 char *buf, *token, *next, *p, *arg; 564 int ea_ver; 565 int extended_usage = 0; 566 567 buf = string_copy(ctx, opts, 0); 568 for (token = buf; token && *token; token = next) { 569 p = strchr(token, ','); 570 next = 0; 571 if (p) { 572 *p = 0; 573 next = p+1; 574 } 575 arg = strchr(token, '='); 576 if (arg) { 577 *arg = 0; 578 arg++; 579 } 580 if (strcmp(token, "ea_ver") == 0) { 581 if (!arg) { 582 extended_usage++; 583 continue; 584 } 585 ea_ver = strtoul(arg, &p, 0); 586 if (*p || 587 ((ea_ver != 1) && (ea_ver != 2))) { 588 fprintf(stderr, 589 _("Invalid EA version.\n")); 590 extended_usage++; 591 continue; 592 } 593 ctx->ext_attr_ver = ea_ver; 594 } else if (strcmp(token, "fragcheck") == 0) { 595 ctx->options |= E2F_OPT_FRAGCHECK; 596 continue; 597 } else { 598 fprintf(stderr, _("Unknown extended option: %s\n"), 599 token); 600 extended_usage++; 601 } 602 } 603 free(buf); 604 605 if (extended_usage) { 606 fputs(("\nExtended options are separated by commas, " 607 "and may take an argument which\n" 608 "is set off by an equals ('=') sign. " 609 "Valid extended options are:\n"), stderr); 610 fputs(("\tea_ver=<ea_version (1 or 2)>\n"), stderr); 611 fputs(("\tfragcheck\n"), stderr); 612 fputc('\n', stderr); 613 exit(1); 614 } 615} 616 617static void syntax_err_report(const char *filename, long err, int line_num) 618{ 619 fprintf(stderr, 620 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"), 621 filename, line_num, error_message(err)); 622 exit(FSCK_ERROR); 623} 624 625static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 }; 626 627static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx) 628{ 629 int flush = 0; 630 int c, fd; 631#ifdef MTRACE 632 extern void *mallwatch; 633#endif 634 e2fsck_t ctx; 635 errcode_t retval; 636#ifdef HAVE_SIGNAL_H 637 struct sigaction sa; 638#endif 639 char *extended_opts = 0; 640 char *cp; 641 int res; /* result of sscanf */ 642#ifdef CONFIG_JBD_DEBUG 643 char *jbd_debug; 644#endif 645 646 retval = e2fsck_allocate_context(&ctx); 647 if (retval) 648 return retval; 649 650 *ret_ctx = ctx; 651 652 setvbuf(stdout, NULL, _IONBF, BUFSIZ); 653 setvbuf(stderr, NULL, _IONBF, BUFSIZ); 654 if (isatty(0) && isatty(1)) { 655 ctx->interactive = 1; 656 } else { 657 ctx->start_meta[0] = '\001'; 658 ctx->stop_meta[0] = '\002'; 659 } 660 memset(bar, '=', sizeof(bar)-1); 661 memset(spaces, ' ', sizeof(spaces)-1); 662 add_error_table(&et_ext2_error_table); 663 add_error_table(&et_prof_error_table); 664 blkid_get_cache(&ctx->blkid, NULL); 665 666 if (argc && *argv) 667 ctx->program_name = *argv; 668 else 669 ctx->program_name = "e2fsck"; 670 while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF) 671 switch (c) { 672 case 'C': 673 ctx->progress = e2fsck_update_progress; 674 res = sscanf(optarg, "%d", &ctx->progress_fd); 675 if (res != 1) 676 goto sscanf_err; 677 678 if (ctx->progress_fd < 0) { 679 ctx->progress = 0; 680 ctx->progress_fd = ctx->progress_fd * -1; 681 } 682 if (!ctx->progress_fd) 683 break; 684 /* Validate the file descriptor to avoid disasters */ 685 fd = dup(ctx->progress_fd); 686 if (fd < 0) { 687 fprintf(stderr, 688 _("Error validating file descriptor %d: %s\n"), 689 ctx->progress_fd, 690 error_message(errno)); 691 fatal_error(ctx, 692 _("Invalid completion information file descriptor")); 693 } else 694 close(fd); 695 break; 696 case 'D': 697 ctx->options |= E2F_OPT_COMPRESS_DIRS; 698 break; 699 case 'E': 700 extended_opts = optarg; 701 break; 702 case 'p': 703 case 'a': 704 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) { 705 conflict_opt: 706 fatal_error(ctx, 707 _("Only one of the options -p/-a, -n or -y may be specified.")); 708 } 709 ctx->options |= E2F_OPT_PREEN; 710 break; 711 case 'n': 712 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN)) 713 goto conflict_opt; 714 ctx->options |= E2F_OPT_NO; 715 break; 716 case 'y': 717 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO)) 718 goto conflict_opt; 719 ctx->options |= E2F_OPT_YES; 720 break; 721 case 't': 722#ifdef RESOURCE_TRACK 723 if (ctx->options & E2F_OPT_TIME) 724 ctx->options |= E2F_OPT_TIME2; 725 else 726 ctx->options |= E2F_OPT_TIME; 727#else 728 fprintf(stderr, _("The -t option is not " 729 "supported on this version of e2fsck.\n")); 730#endif 731 break; 732 case 'c': 733 if (cflag++) 734 ctx->options |= E2F_OPT_WRITECHECK; 735 ctx->options |= E2F_OPT_CHECKBLOCKS; 736 break; 737 case 'r': 738 /* What we do by default, anyway! */ 739 break; 740 case 'b': 741 res = sscanf(optarg, "%llu", &ctx->use_superblock); 742 if (res != 1) 743 goto sscanf_err; 744 ctx->flags |= E2F_FLAG_SB_SPECIFIED; 745 break; 746 case 'B': 747 ctx->blocksize = atoi(optarg); 748 break; 749 case 'I': 750 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks); 751 if (res != 1) 752 goto sscanf_err; 753 break; 754 case 'j': 755 ctx->journal_name = string_copy(ctx, optarg, 0); 756 break; 757 case 'P': 758 res = sscanf(optarg, "%d", &ctx->process_inode_size); 759 if (res != 1) 760 goto sscanf_err; 761 break; 762 case 'L': 763 replace_bad_blocks++; 764 case 'l': 765 bad_blocks_file = string_copy(ctx, optarg, 0); 766 break; 767 case 'd': 768 ctx->options |= E2F_OPT_DEBUG; 769 break; 770 case 'f': 771 ctx->options |= E2F_OPT_FORCE; 772 break; 773 case 'F': 774 flush = 1; 775 break; 776 case 'v': 777 verbose = 1; 778 break; 779 case 'V': 780 show_version_only = 1; 781 break; 782#ifdef MTRACE 783 case 'M': 784 mallwatch = (void *) strtol(optarg, NULL, 0); 785 break; 786#endif 787 case 'N': 788 ctx->device_name = string_copy(ctx, optarg, 0); 789 break; 790 case 'k': 791 keep_bad_blocks++; 792 break; 793 default: 794 usage(ctx); 795 } 796 if (show_version_only) 797 return 0; 798 if (optind != argc - 1) 799 usage(ctx); 800 if ((ctx->options & E2F_OPT_NO) && 801 (ctx->options & E2F_OPT_COMPRESS_DIRS)) { 802 com_err(ctx->program_name, 0, 803 _("The -n and -D options are incompatible.")); 804 fatal_error(ctx, 0); 805 } 806 if ((ctx->options & E2F_OPT_NO) && cflag) { 807 com_err(ctx->program_name, 0, 808 _("The -n and -c options are incompatible.")); 809 fatal_error(ctx, 0); 810 } 811 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) { 812 com_err(ctx->program_name, 0, 813 _("The -n and -l/-L options are incompatible.")); 814 fatal_error(ctx, 0); 815 } 816 if (ctx->options & E2F_OPT_NO) 817 ctx->options |= E2F_OPT_READONLY; 818 819 ctx->io_options = strchr(argv[optind], '?'); 820 if (ctx->io_options) 821 *ctx->io_options++ = 0; 822 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0); 823 if (!ctx->filesystem_name) { 824 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"), 825 argv[optind]); 826 fatal_error(ctx, 0); 827 } 828 if (extended_opts) 829 parse_extended_opts(ctx, extended_opts); 830 831 if ((cp = getenv("E2FSCK_CONFIG")) != NULL) 832 config_fn[0] = cp; 833 profile_set_syntax_err_cb(syntax_err_report); 834 profile_init(config_fn, &ctx->profile); 835 836 if (flush) { 837 fd = open(ctx->filesystem_name, O_RDONLY, 0); 838 if (fd < 0) { 839 com_err("open", errno, 840 _("while opening %s for flushing"), 841 ctx->filesystem_name); 842 fatal_error(ctx, 0); 843 } 844 if ((retval = ext2fs_sync_device(fd, 1))) { 845 com_err("ext2fs_sync_device", retval, 846 _("while trying to flush %s"), 847 ctx->filesystem_name); 848 fatal_error(ctx, 0); 849 } 850 close(fd); 851 } 852 if (cflag && bad_blocks_file) { 853 fprintf(stderr, _("The -c and the -l/-L options may " 854 "not be both used at the same time.\n")); 855 exit(FSCK_USAGE); 856 } 857#ifdef HAVE_SIGNAL_H 858 /* 859 * Set up signal action 860 */ 861 memset(&sa, 0, sizeof(struct sigaction)); 862 sa.sa_handler = signal_cancel; 863 sigaction(SIGINT, &sa, 0); 864 sigaction(SIGTERM, &sa, 0); 865#ifdef SA_RESTART 866 sa.sa_flags = SA_RESTART; 867#endif 868 e2fsck_global_ctx = ctx; 869 sa.sa_handler = signal_progress_on; 870 sigaction(SIGUSR1, &sa, 0); 871 sa.sa_handler = signal_progress_off; 872 sigaction(SIGUSR2, &sa, 0); 873#endif 874 875 /* Update our PATH to include /sbin if we need to run badblocks */ 876 if (cflag) { 877 char *oldpath = getenv("PATH"); 878 char *newpath; 879 int len = sizeof(PATH_SET) + 1; 880 881 if (oldpath) 882 len += strlen(oldpath); 883 884 newpath = malloc(len); 885 if (!newpath) 886 fatal_error(ctx, "Couldn't malloc() newpath"); 887 strcpy(newpath, PATH_SET); 888 889 if (oldpath) { 890 strcat(newpath, ":"); 891 strcat(newpath, oldpath); 892 } 893 putenv(newpath); 894 } 895#ifdef CONFIG_JBD_DEBUG 896 jbd_debug = getenv("E2FSCK_JBD_DEBUG"); 897 if (jbd_debug) { 898 res = sscanf(jbd_debug, "%d", &journal_enable_debug); 899 if (res != 1) { 900 fprintf(stderr, 901 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"), 902 jbd_debug); 903 exit (1); 904 } 905 } 906#endif 907 return 0; 908 909sscanf_err: 910 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"), 911 c, optarg); 912 exit (1); 913} 914 915static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr, 916 ext2_filsys *ret_fs) 917{ 918 errcode_t retval; 919 920 *ret_fs = NULL; 921 if (ctx->superblock && ctx->blocksize) { 922 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, 923 flags, ctx->superblock, ctx->blocksize, 924 io_ptr, ret_fs); 925 } else if (ctx->superblock) { 926 int blocksize; 927 for (blocksize = EXT2_MIN_BLOCK_SIZE; 928 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) { 929 if (*ret_fs) { 930 ext2fs_free(*ret_fs); 931 *ret_fs = NULL; 932 } 933 retval = ext2fs_open2(ctx->filesystem_name, 934 ctx->io_options, flags, 935 ctx->superblock, blocksize, 936 io_ptr, ret_fs); 937 if (!retval) 938 break; 939 } 940 } else 941 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, 942 flags, 0, 0, io_ptr, ret_fs); 943 return retval; 944} 945 946 947static const char *my_ver_string = E2FSPROGS_VERSION; 948static const char *my_ver_date = E2FSPROGS_DATE; 949 950int main (int argc, char *argv[]) 951{ 952 errcode_t retval = 0, retval2 = 0, orig_retval = 0; 953 int exit_value = FSCK_OK; 954 ext2_filsys fs = 0; 955 io_manager io_ptr; 956 struct ext2_super_block *sb; 957 const char *lib_ver_date; 958 int my_ver, lib_ver; 959 e2fsck_t ctx; 960 blk_t orig_superblock; 961 struct problem_context pctx; 962 int flags, run_result; 963 int journal_size; 964 int sysval, sys_page_size = 4096; 965 int old_bitmaps; 966 __u32 features[3]; 967 char *cp; 968 969 clear_problem_context(&pctx); 970#ifdef MTRACE 971 mtrace(); 972#endif 973#ifdef MCHECK 974 mcheck(0); 975#endif 976#ifdef ENABLE_NLS 977 setlocale(LC_MESSAGES, ""); 978 setlocale(LC_CTYPE, ""); 979 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 980 textdomain(NLS_CAT_NAME); 981#endif 982 my_ver = ext2fs_parse_version_string(my_ver_string); 983 lib_ver = ext2fs_get_library_version(0, &lib_ver_date); 984 if (my_ver > lib_ver) { 985 fprintf( stderr, _("Error: ext2fs library version " 986 "out of date!\n")); 987 show_version_only++; 988 } 989 990 retval = PRS(argc, argv, &ctx); 991 if (retval) { 992 com_err("e2fsck", retval, 993 _("while trying to initialize program")); 994 exit(FSCK_ERROR); 995 } 996 reserve_stdio_fds(); 997 998 init_resource_track(&ctx->global_rtrack, NULL); 999 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only) 1000 fprintf(stderr, "e2fsck %s (%s)\n", my_ver_string, 1001 my_ver_date); 1002 1003 if (show_version_only) { 1004 fprintf(stderr, _("\tUsing %s, %s\n"), 1005 error_message(EXT2_ET_BASE), lib_ver_date); 1006 exit(FSCK_OK); 1007 } 1008 1009 check_mount(ctx); 1010 1011 if (!(ctx->options & E2F_OPT_PREEN) && 1012 !(ctx->options & E2F_OPT_NO) && 1013 !(ctx->options & E2F_OPT_YES)) { 1014 if (!ctx->interactive) 1015 fatal_error(ctx, 1016 _("need terminal for interactive repairs")); 1017 } 1018 ctx->superblock = ctx->use_superblock; 1019restart: 1020#ifdef CONFIG_TESTIO_DEBUG 1021 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1022 io_ptr = test_io_manager; 1023 test_io_backing_manager = unix_io_manager; 1024 } else 1025#endif 1026 io_ptr = unix_io_manager; 1027 flags = EXT2_FLAG_NOFREE_ON_ERROR; 1028 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0, 1029 &old_bitmaps); 1030 if (!old_bitmaps) 1031 flags |= EXT2_FLAG_64BITS; 1032 if ((ctx->options & E2F_OPT_READONLY) == 0) 1033 flags |= EXT2_FLAG_RW; 1034 if ((ctx->mount_flags & EXT2_MF_MOUNTED) == 0) 1035 flags |= EXT2_FLAG_EXCLUSIVE; 1036 1037 retval = try_open_fs(ctx, flags, io_ptr, &fs); 1038 1039 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) && 1040 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) && 1041 ((retval == EXT2_ET_BAD_MAGIC) || 1042 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) || 1043 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) { 1044 if (retval2 == ENOMEM) { 1045 retval = retval2; 1046 goto failure; 1047 } 1048 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) { 1049 ext2fs_free(fs); 1050 fs = NULL; 1051 } 1052 if (!fs || (fs->group_desc_count > 1)) { 1053 printf(_("%s: %s trying backup blocks...\n"), 1054 ctx->program_name, 1055 retval ? _("Superblock invalid,") : 1056 _("Group descriptors look bad...")); 1057 orig_superblock = ctx->superblock; 1058 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr); 1059 if (fs) 1060 ext2fs_close(fs); 1061 orig_retval = retval; 1062 retval = try_open_fs(ctx, flags, io_ptr, &fs); 1063 if ((orig_retval == 0) && retval != 0) { 1064 com_err(ctx->program_name, retval, 1065 "when using the backup blocks"); 1066 printf(_("%s: going back to original " 1067 "superblock\n"), ctx->program_name); 1068 ctx->superblock = orig_superblock; 1069 retval = try_open_fs(ctx, flags, io_ptr, &fs); 1070 } 1071 } 1072 } 1073 if (((retval == EXT2_ET_UNSUPP_FEATURE) || 1074 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) && 1075 fs && fs->super) { 1076 sb = fs->super; 1077 features[0] = (sb->s_feature_compat & 1078 ~EXT2_LIB_FEATURE_COMPAT_SUPP); 1079 features[1] = (sb->s_feature_incompat & 1080 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP); 1081 features[2] = (sb->s_feature_ro_compat & 1082 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP); 1083 if (features[0] || features[1] || features[2]) 1084 goto print_unsupp_features; 1085 } 1086failure: 1087 if (retval) { 1088 if (orig_retval) 1089 retval = orig_retval; 1090 com_err(ctx->program_name, retval, _("while trying to open %s"), 1091 ctx->filesystem_name); 1092 if (retval == EXT2_ET_REV_TOO_HIGH) { 1093 printf(_("The filesystem revision is apparently " 1094 "too high for this version of e2fsck.\n" 1095 "(Or the filesystem superblock " 1096 "is corrupt)\n\n")); 1097 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); 1098 } else if (retval == EXT2_ET_SHORT_READ) 1099 printf(_("Could this be a zero-length partition?\n")); 1100 else if ((retval == EPERM) || (retval == EACCES)) 1101 printf(_("You must have %s access to the " 1102 "filesystem or be root\n"), 1103 (ctx->options & E2F_OPT_READONLY) ? 1104 "r/o" : "r/w"); 1105 else if (retval == ENXIO) 1106 printf(_("Possibly non-existent or swap device?\n")); 1107 else if (retval == EBUSY) 1108 printf(_("Filesystem mounted or opened exclusively " 1109 "by another program?\n")); 1110#ifdef EROFS 1111 else if (retval == EROFS) 1112 printf(_("Disk write-protected; use the -n option " 1113 "to do a read-only\n" 1114 "check of the device.\n")); 1115#endif 1116 else 1117 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); 1118 fatal_error(ctx, 0); 1119 } 1120 /* 1121 * We only update the master superblock because (a) paranoia; 1122 * we don't want to corrupt the backup superblocks, and (b) we 1123 * don't need to update the mount count and last checked 1124 * fields in the backup superblock (the kernel doesn't update 1125 * the backup superblocks anyway). With newer versions of the 1126 * library this flag is set by ext2fs_open2(), but we set this 1127 * here just to be sure. (No, we don't support e2fsck running 1128 * with some other libext2fs than the one that it was shipped 1129 * with, but just in case....) 1130 */ 1131 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY; 1132 1133 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) { 1134 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super); 1135 int need_restart = 0; 1136 1137 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name, 1138 blocksize, 1139 &ctx->num_blocks); 1140 /* 1141 * The floppy driver refuses to allow anyone else to 1142 * open the device if has been opened with O_EXCL; 1143 * this is unlike other block device drivers in Linux. 1144 * To handle this, we close the filesystem and then 1145 * reopen the filesystem after we get the device size. 1146 */ 1147 if (pctx.errcode == EBUSY) { 1148 ext2fs_close(fs); 1149 need_restart++; 1150 pctx.errcode = 1151 ext2fs_get_device_size2(ctx->filesystem_name, 1152 blocksize, 1153 &ctx->num_blocks); 1154 } 1155 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED) 1156 ctx->num_blocks = 0; 1157 else if (pctx.errcode) { 1158 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx); 1159 ctx->flags |= E2F_FLAG_ABORT; 1160 fatal_error(ctx, 0); 1161 } 1162 ctx->flags |= E2F_FLAG_GOT_DEVSIZE; 1163 if (need_restart) 1164 goto restart; 1165 } 1166 1167 ctx->fs = fs; 1168 fs->priv_data = ctx; 1169 fs->now = ctx->now; 1170 sb = fs->super; 1171 if (sb->s_rev_level > E2FSCK_CURRENT_REV) { 1172 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH, 1173 _("while trying to open %s"), 1174 ctx->filesystem_name); 1175 get_newer: 1176 fatal_error(ctx, _("Get a newer version of e2fsck!")); 1177 } 1178 1179 /* 1180 * Set the device name, which is used whenever we print error 1181 * or informational messages to the user. 1182 */ 1183 if (ctx->device_name == 0 && 1184 (sb->s_volume_name[0] != 0)) { 1185 ctx->device_name = string_copy(ctx, sb->s_volume_name, 1186 sizeof(sb->s_volume_name)); 1187 } 1188 if (ctx->device_name == 0) 1189 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0); 1190 for (cp = ctx->device_name; *cp; cp++) 1191 if (isspace(*cp) || *cp == ':') 1192 *cp = '_'; 1193 1194 ehandler_init(fs->io); 1195 1196 if ((ctx->mount_flags & EXT2_MF_MOUNTED) && 1197 !(sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER)) 1198 goto skip_journal; 1199 1200 /* 1201 * Make sure the ext3 superblock fields are consistent. 1202 */ 1203 retval = e2fsck_check_ext3_journal(ctx); 1204 if (retval) { 1205 com_err(ctx->program_name, retval, 1206 _("while checking ext3 journal for %s"), 1207 ctx->device_name); 1208 fatal_error(ctx, 0); 1209 } 1210 1211 /* 1212 * Check to see if we need to do ext3-style recovery. If so, 1213 * do it, and then restart the fsck. 1214 */ 1215 if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) { 1216 if (ctx->options & E2F_OPT_READONLY) { 1217 printf(_("Warning: skipping journal recovery " 1218 "because doing a read-only filesystem " 1219 "check.\n")); 1220 io_channel_flush(ctx->fs->io); 1221 } else { 1222 if (ctx->flags & E2F_FLAG_RESTARTED) { 1223 /* 1224 * Whoops, we attempted to run the 1225 * journal twice. This should never 1226 * happen, unless the hardware or 1227 * device driver is being bogus. 1228 */ 1229 com_err(ctx->program_name, 0, 1230 _("unable to set superblock flags on %s\n"), ctx->device_name); 1231 fatal_error(ctx, 0); 1232 } 1233 retval = e2fsck_run_ext3_journal(ctx); 1234 if (retval) { 1235 com_err(ctx->program_name, retval, 1236 _("while recovering ext3 journal of %s"), 1237 ctx->device_name); 1238 fatal_error(ctx, 0); 1239 } 1240 ext2fs_close(ctx->fs); 1241 ctx->fs = 0; 1242 ctx->flags |= E2F_FLAG_RESTARTED; 1243 goto restart; 1244 } 1245 } 1246 1247skip_journal: 1248 /* 1249 * Check for compatibility with the feature sets. We need to 1250 * be more stringent than ext2fs_open(). 1251 */ 1252 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP; 1253 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP; 1254 features[2] = (sb->s_feature_ro_compat & 1255 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP); 1256print_unsupp_features: 1257 if (features[0] || features[1] || features[2]) { 1258 int i, j; 1259 __u32 *mask = features, m; 1260 1261 fprintf(stderr, _("%s has unsupported feature(s):"), 1262 ctx->filesystem_name); 1263 1264 for (i=0; i <3; i++,mask++) { 1265 for (j=0,m=1; j < 32; j++, m<<=1) { 1266 if (*mask & m) 1267 fprintf(stderr, " %s", 1268 e2p_feature2string(i, m)); 1269 } 1270 } 1271 putc('\n', stderr); 1272 goto get_newer; 1273 } 1274#ifdef ENABLE_COMPRESSION 1275 if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION) 1276 com_err(ctx->program_name, 0, 1277 _("Warning: compression support is experimental.\n")); 1278#endif 1279#ifndef ENABLE_HTREE 1280 if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) { 1281 com_err(ctx->program_name, 0, 1282 _("E2fsck not compiled with HTREE support,\n\t" 1283 "but filesystem %s has HTREE directories.\n"), 1284 ctx->device_name); 1285 goto get_newer; 1286 } 1287#endif 1288 1289 /* 1290 * If the user specified a specific superblock, presumably the 1291 * master superblock has been trashed. So we mark the 1292 * superblock as dirty, so it can be written out. 1293 */ 1294 if (ctx->superblock && 1295 !(ctx->options & E2F_OPT_READONLY)) 1296 ext2fs_mark_super_dirty(fs); 1297 1298 /* 1299 * Calculate the number of filesystem blocks per pagesize. If 1300 * fs->blocksize > page_size, set the number of blocks per 1301 * pagesize to 1 to avoid division by zero errors. 1302 */ 1303#ifdef _SC_PAGESIZE 1304 sysval = sysconf(_SC_PAGESIZE); 1305 if (sysval > 0) 1306 sys_page_size = sysval; 1307#endif /* _SC_PAGESIZE */ 1308 ctx->blocks_per_page = sys_page_size / fs->blocksize; 1309 if (ctx->blocks_per_page == 0) 1310 ctx->blocks_per_page = 1; 1311 1312 if (ctx->superblock) 1313 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0); 1314 ext2fs_mark_valid(fs); 1315 check_super_block(ctx); 1316 if (ctx->flags & E2F_FLAG_SIGNAL_MASK) 1317 fatal_error(ctx, 0); 1318 check_if_skip(ctx); 1319 check_resize_inode(ctx); 1320 if (bad_blocks_file) 1321 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks); 1322 else if (cflag) 1323 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */ 1324 if (ctx->flags & E2F_FLAG_SIGNAL_MASK) 1325 fatal_error(ctx, 0); 1326 1327 /* 1328 * Mark the system as valid, 'til proven otherwise 1329 */ 1330 ext2fs_mark_valid(fs); 1331 1332 retval = ext2fs_read_bb_inode(fs, &fs->badblocks); 1333 if (retval) { 1334 com_err(ctx->program_name, retval, 1335 _("while reading bad blocks inode")); 1336 preenhalt(ctx); 1337 printf(_("This doesn't bode well," 1338 " but we'll try to go on...\n")); 1339 } 1340 1341 /* 1342 * Save the journal size in megabytes. 1343 * Try and use the journal size from the backup else let e2fsck 1344 * find the default journal size. 1345 */ 1346 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS) 1347 journal_size = sb->s_jnl_blocks[16] >> 20; 1348 else 1349 journal_size = -1; 1350 1351 run_result = e2fsck_run(ctx); 1352 e2fsck_clear_progbar(ctx); 1353 1354 if (ctx->flags & E2F_FLAG_JOURNAL_INODE) { 1355 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) { 1356 if (journal_size < 1024) 1357 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super)); 1358 if (journal_size < 0) { 1359 fs->super->s_feature_compat &= 1360 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1361 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1362 com_err(ctx->program_name, 0, 1363 _("Couldn't determine journal size")); 1364 goto no_journal; 1365 } 1366 printf(_("Creating journal (%d blocks): "), 1367 journal_size); 1368 fflush(stdout); 1369 retval = ext2fs_add_journal_inode(fs, 1370 journal_size, 0); 1371 if (retval) { 1372 com_err("Error ", retval, 1373 _("\n\twhile trying to create journal")); 1374 goto no_journal; 1375 } 1376 printf(_(" Done.\n")); 1377 printf(_("\n*** journal has been re-created - " 1378 "filesystem is now ext3 again ***\n")); 1379 } 1380 } 1381no_journal: 1382 1383 if (run_result == E2F_FLAG_RESTART) { 1384 printf(_("Restarting e2fsck from the beginning...\n")); 1385 retval = e2fsck_reset_context(ctx); 1386 if (retval) { 1387 com_err(ctx->program_name, retval, 1388 _("while resetting context")); 1389 fatal_error(ctx, 0); 1390 } 1391 ext2fs_close(fs); 1392 goto restart; 1393 } 1394 if (run_result & E2F_FLAG_CANCEL) { 1395 printf(_("%s: e2fsck canceled.\n"), ctx->device_name ? 1396 ctx->device_name : ctx->filesystem_name); 1397 exit_value |= FSCK_CANCELED; 1398 } 1399 if (run_result & E2F_FLAG_ABORT) 1400 fatal_error(ctx, _("aborted")); 1401 if (check_backup_super_block(ctx)) { 1402 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1403 ext2fs_mark_super_dirty(fs); 1404 } 1405 1406#ifdef MTRACE 1407 mtrace_print("Cleanup"); 1408#endif 1409 if (ext2fs_test_changed(fs)) { 1410 exit_value |= FSCK_NONDESTRUCT; 1411 if (!(ctx->options & E2F_OPT_PREEN)) 1412 printf(_("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"), 1413 ctx->device_name); 1414 if (ctx->mount_flags & EXT2_MF_ISROOT) { 1415 printf(_("%s: ***** REBOOT LINUX *****\n"), 1416 ctx->device_name); 1417 exit_value |= FSCK_REBOOT; 1418 } 1419 } 1420 if (!ext2fs_test_valid(fs) || 1421 ((exit_value & FSCK_CANCELED) && 1422 (sb->s_state & EXT2_ERROR_FS))) { 1423 printf(_("\n%s: ********** WARNING: Filesystem still has " 1424 "errors **********\n\n"), ctx->device_name); 1425 exit_value |= FSCK_UNCORRECTED; 1426 exit_value &= ~FSCK_NONDESTRUCT; 1427 } 1428 if (exit_value & FSCK_CANCELED) { 1429 int allow_cancellation; 1430 1431 profile_get_boolean(ctx->profile, "options", 1432 "allow_cancellation", 0, 0, 1433 &allow_cancellation); 1434 exit_value &= ~FSCK_NONDESTRUCT; 1435 if (allow_cancellation && ext2fs_test_valid(fs) && 1436 (sb->s_state & EXT2_VALID_FS) && 1437 !(sb->s_state & EXT2_ERROR_FS)) 1438 exit_value = 0; 1439 } else { 1440 show_stats(ctx); 1441 if (!(ctx->options & E2F_OPT_READONLY)) { 1442 if (ext2fs_test_valid(fs)) { 1443 if (!(sb->s_state & EXT2_VALID_FS)) 1444 exit_value |= FSCK_NONDESTRUCT; 1445 sb->s_state = EXT2_VALID_FS; 1446 } else 1447 sb->s_state &= ~EXT2_VALID_FS; 1448 sb->s_mnt_count = 0; 1449 if (!(ctx->flags & E2F_FLAG_TIME_INSANE)) 1450 sb->s_lastcheck = ctx->now; 1451 ext2fs_mark_super_dirty(fs); 1452 } 1453 } 1454 1455 if ((run_result & E2F_FLAG_CANCEL) == 0 && 1456 sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM && 1457 !(ctx->options & E2F_OPT_READONLY)) { 1458 retval = ext2fs_set_gdt_csum(ctx->fs); 1459 if (retval) { 1460 com_err(ctx->program_name, retval, 1461 _("while setting block group checksum info")); 1462 fatal_error(ctx, 0); 1463 } 1464 } 1465 1466 e2fsck_write_bitmaps(ctx); 1467 io_channel_flush(ctx->fs->io); 1468 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io); 1469 1470 ext2fs_close(fs); 1471 ctx->fs = NULL; 1472 free(ctx->journal_name); 1473 1474 e2fsck_free_context(ctx); 1475 remove_error_table(&et_ext2_error_table); 1476 remove_error_table(&et_prof_error_table); 1477 return exit_value; 1478} 1479