/* * unix.c - The unix-specific code for e2fsck * * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */ #include #ifdef HAVE_STDLIB_H #include #endif #include #include #include #include #ifdef HAVE_SIGNAL_H #include #endif #ifdef HAVE_GETOPT_H #include #else extern char *optarg; extern int optind; #endif #include #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_MNTENT_H #include #endif #include #include #include "et/com_err.h" #include "e2fsck.h" #include "problem.h" #include "../version.h" /* Command line options */ static int swapfs = 0; static int normalize_swapfs = 0; static int cflag = 0; /* check disk */ static int show_version_only = 0; static int verbose = 0; static int replace_bad_blocks = 0; static char *bad_blocks_file = 0; e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */ #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jfs-debug */ int journal_enable_debug = -1; #endif static void usage(e2fsck_t ctx) { fprintf(stderr, _("Usage: %s [-panyrcdfvstDFSV] [-b superblock] [-B blocksize]\n" "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n" "\t\t[-l|-L bad_blocks_file] [-C fd] [-j ext-journal]\n" "\t\t[-E extended-options] device\n"), ctx->program_name); fprintf(stderr, _("\nEmergency help:\n" " -p Automatic repair (no questions)\n" " -n Make no changes to the filesystem\n" " -y Assume \"yes\" to all questions\n" " -c Check for bad blocks\n" " -f Force checking even if filesystem is marked clean\n")); fprintf(stderr, _("" " -v Be verbose\n" " -b superblock Use alternative superblock\n" " -B blocksize Force blocksize when looking for superblock\n" " -j external-journal Set location of the external journal\n" " -l bad_blocks_file Add to badblocks list\n" " -L bad_blocks_file Set badblocks list\n" )); exit(FSCK_USAGE); } static void show_stats(e2fsck_t ctx) { ext2_filsys fs = ctx->fs; int inodes, inodes_used, blocks, blocks_used; int dir_links; int num_files, num_links; int frag_percent; dir_links = 2 * ctx->fs_directory_count - 1; num_files = ctx->fs_total_count - dir_links; num_links = ctx->fs_links_count - dir_links; inodes = fs->super->s_inodes_count; inodes_used = (fs->super->s_inodes_count - fs->super->s_free_inodes_count); blocks = fs->super->s_blocks_count; blocks_used = (fs->super->s_blocks_count - fs->super->s_free_blocks_count); frag_percent = (10000 * ctx->fs_fragmented) / inodes_used; frag_percent = (frag_percent + 5) / 10; if (!verbose) { printf(_("%s: %d/%d files (%0d.%d%% non-contiguous), %d/%d blocks\n"), ctx->device_name, inodes_used, inodes, frag_percent / 10, frag_percent % 10, blocks_used, blocks); return; } /* * This is a bit ugly. But I think there will nearly always be more * than one "thing" to report about, so I won't try writing complex * code to handle one/two/many forms of all words. * Some languages (Italian, at least) never uses the plural form * of foreign words, so in real life this could not be a problem. * md@linux.it - 2000-1-15 */ #ifdef ENABLE_NLS printf (_("\n%8d inodes used (%d%%)\n"), inodes_used, 100 * inodes_used / inodes); printf (_("%8d non-contiguous inodes (%0d.%d%%)\n"), ctx->fs_fragmented, frag_percent / 10, frag_percent % 10); printf (_(" # of inodes with ind/dind/tind blocks: %d/%d/%d\n"), ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count); printf (_("%8d blocks used (%d%%)\n" "%8d bad blocks\n"), blocks_used, (int) ((long long) 100 * blocks_used / blocks), ctx->fs_badblocks_count); printf(_("%8d large files\n"), ctx->large_files); printf (_("\n%8d regular files\n" "%8d directories\n" "%8d character device files\n" "%8d block device files\n" "%8d fifos\n" "%8d links\n" "%8d symbolic links (%d fast symbolic links)\n" "%8d sockets\n" "--------\n" "%8d files\n"), ctx->fs_regular_count, ctx->fs_directory_count, ctx->fs_chardev_count, ctx->fs_blockdev_count, ctx->fs_fifo_count, ctx->fs_links_count - dir_links, ctx->fs_symlinks_count, ctx->fs_fast_symlinks_count, ctx->fs_sockets_count, ctx->fs_total_count - dir_links); #else printf ("\n%8d inode%s used (%d%%)\n", inodes_used, (inodes_used != 1) ? "s" : "", 100 * inodes_used / inodes); printf ("%8d non-contiguous inodes (%0d.%d%%)\n", ctx->fs_fragmented, frag_percent / 10, frag_percent % 10); printf (" # of inodes with ind/dind/tind blocks: %d/%d/%d\n", ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count); printf ("%8d block%s used (%d%%)\n" "%8d bad block%s\n", blocks_used, (blocks_used != 1) ? "s" : "", 100 * blocks_used / blocks, ctx->fs_badblocks_count, ctx->fs_badblocks_count != 1 ? "s" : ""); printf(_("%8d large file%s\n"), ctx->large_files, (ctx->large_files != 1) ? "s" : ""); printf ("\n%8d regular file%s\n" "%8d director%s\n" "%8d character device file%s\n" "%8d block device file%s\n" "%8d fifo%s\n" "%8d link%s\n" "%8d symbolic link%s (%d fast symbolic link%s)\n" "%8d socket%s\n" "--------\n" "%8d file%s\n", ctx->fs_regular_count, (ctx->fs_regular_count != 1) ? "s" : "", ctx->fs_directory_count, (ctx->fs_directory_count != 1) ? "ies" : "y", ctx->fs_chardev_count, (ctx->fs_chardev_count != 1) ? "s" : "", ctx->fs_blockdev_count, (ctx->fs_blockdev_count != 1) ? "s" : "", ctx->fs_fifo_count, (ctx->fs_fifo_count != 1) ? "s" : "", ctx->fs_links_count - dir_links, ((ctx->fs_links_count - dir_links) != 1) ? "s" : "", ctx->fs_symlinks_count, (ctx->fs_symlinks_count != 1) ? "s" : "", ctx->fs_fast_symlinks_count, (ctx->fs_fast_symlinks_count != 1) ? "s" : "", ctx->fs_sockets_count, (ctx->fs_sockets_count != 1) ? "s" : "", ctx->fs_total_count - dir_links, ((ctx->fs_total_count - dir_links) != 1) ? "s" : ""); #endif } static void check_mount(e2fsck_t ctx) { errcode_t retval; int cont; retval = ext2fs_check_if_mounted(ctx->filesystem_name, &ctx->mount_flags); if (retval) { com_err("ext2fs_check_if_mount", retval, _("while determining whether %s is mounted."), ctx->filesystem_name); return; } /* * If the filesystem isn't mounted, or it's the root filesystem * and it's mounted read-only, then everything's fine. */ if ((!(ctx->mount_flags & EXT2_MF_MOUNTED)) || ((ctx->mount_flags & EXT2_MF_ISROOT) && (ctx->mount_flags & EXT2_MF_READONLY))) return; if (ctx->options & E2F_OPT_READONLY) { printf(_("Warning! %s is mounted.\n"), ctx->filesystem_name); return; } printf(_("%s is mounted. "), ctx->filesystem_name); if (!isatty(0) || !isatty(1)) fatal_error(ctx, _("Cannot continue, aborting.\n\n")); printf(_("\n\n\007\007\007\007WARNING!!! " "Running e2fsck on a mounted filesystem may cause\n" "SEVERE filesystem damage.\007\007\007\n\n")); cont = ask_yn(_("Do you really want to continue"), -1); if (!cont) { printf (_("check aborted.\n")); exit (0); } return; } /* * This routine checks to see if a filesystem can be skipped; if so, * it will exit with E2FSCK_OK. Under some conditions it will print a * message explaining why a check is being forced. */ static void check_if_skip(e2fsck_t ctx) { ext2_filsys fs = ctx->fs; const char *reason = NULL; unsigned int reason_arg = 0; if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag || swapfs) return; if (fs->super->s_state & EXT2_ERROR_FS) reason = _(" contains a file system with errors"); else if ((fs->super->s_state & EXT2_VALID_FS) == 0) reason = _(" was not cleanly unmounted"); else if ((fs->super->s_max_mnt_count > 0) && (fs->super->s_mnt_count >= (unsigned) fs->super->s_max_mnt_count)) { reason = _(" has been mounted %u times without being checked"); reason_arg = fs->super->s_mnt_count; } else if (fs->super->s_checkinterval && time(0) >= (fs->super->s_lastcheck + fs->super->s_checkinterval)) { reason = _(" has gone %u days without being checked"); reason_arg = (time(0) - fs->super->s_lastcheck)/(3600*24); } if (reason) { fputs(ctx->device_name, stdout); printf(reason, reason_arg); fputs(_(", check forced.\n"), stdout); return; } printf(_("%s: clean, %d/%d files, %d/%d blocks\n"), ctx->device_name, fs->super->s_inodes_count - fs->super->s_free_inodes_count, fs->super->s_inodes_count, fs->super->s_blocks_count - fs->super->s_free_blocks_count, fs->super->s_blocks_count); ext2fs_close(fs); ctx->fs = NULL; e2fsck_free_context(ctx); exit(FSCK_OK); } /* * For completion notice */ struct percent_tbl { int max_pass; int table[32]; }; struct percent_tbl e2fsck_tbl = { 5, { 0, 70, 90, 92, 95, 100 } }; static char bar[] = "===============================================================" "==============================================================="; static char spaces[] = " " " "; static float calc_percent(struct percent_tbl *tbl, int pass, int curr, int max) { float percent; if (pass <= 0) return 0.0; if (pass > tbl->max_pass || max == 0) return 100.0; percent = ((float) curr) / ((float) max); return ((percent * (tbl->table[pass] - tbl->table[pass-1])) + tbl->table[pass-1]); } extern void e2fsck_clear_progbar(e2fsck_t ctx) { if (!(ctx->flags & E2F_FLAG_PROG_BAR)) return; printf("%s\r", spaces + (sizeof(spaces) - 80)); ctx->flags &= ~E2F_FLAG_PROG_BAR; } static int e2fsck_update_progress(e2fsck_t ctx, int pass, unsigned long cur, unsigned long max) { static const char spinner[] = "\\|/-"; char buf[80]; int i; float percent; int tick; struct timeval tv; static int dpywidth = 0; if (pass == 0) return 0; if (ctx->progress_fd) { sprintf(buf, "%d %lu %lu\n", pass, cur, max); write(ctx->progress_fd, buf, strlen(buf)); } else { if (ctx->flags & E2F_FLAG_PROG_SUPPRESS) return 0; if (dpywidth == 0) { dpywidth = 66 - strlen(ctx->device_name); dpywidth = 8 * (dpywidth / 8); } /* * Calculate the new progress position. If the * percentage hasn't changed, then we skip out right * away. */ percent = calc_percent(&e2fsck_tbl, pass, cur, max); if (ctx->progress_last_percent == (int) 10 * percent) return 0; ctx->progress_last_percent = (int) 10 * percent; /* * If we've already updated the spinner once within * the last 1/8th of a second, no point doing it * again. */ gettimeofday(&tv, NULL); tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8)); if ((tick == ctx->progress_last_time) && (cur != max) && (cur != 0)) return 0; ctx->progress_last_time = tick; /* * Advance the spinner, and note that the progress bar * will be on the screen */ ctx->progress_pos = (ctx->progress_pos+1) & 3; ctx->flags |= E2F_FLAG_PROG_BAR; i = ((percent * dpywidth) + 50) / 100; printf("%s: |%s%s", ctx->device_name, bar + (sizeof(bar) - (i+1)), spaces + (sizeof(spaces) - (dpywidth - i + 1))); if (percent == 100.0) fputc('|', stdout); else fputc(spinner[ctx->progress_pos & 3], stdout); printf(" %4.1f%% \r", percent); if (percent == 100.0) e2fsck_clear_progbar(ctx); fflush(stdout); } return 0; } #define PATH_SET "PATH=/sbin" static void reserve_stdio_fds(void) { int fd; while (1) { fd = open("/dev/null", O_RDWR); if (fd > 2) break; if (fd < 0) { fprintf(stderr, _("ERROR: Couldn't open " "/dev/null (%s)\n"), strerror(errno)); break; } } close(fd); } #ifdef HAVE_SIGNAL_H static void signal_progress_on(int sig) { e2fsck_t ctx = e2fsck_global_ctx; if (!ctx) return; ctx->progress = e2fsck_update_progress; ctx->progress_fd = 0; } static void signal_progress_off(int sig) { e2fsck_t ctx = e2fsck_global_ctx; if (!ctx) return; e2fsck_clear_progbar(ctx); ctx->progress = 0; } static void signal_cancel(int sig) { e2fsck_t ctx = e2fsck_global_ctx; if (!ctx) exit(FSCK_CANCELED); ctx->flags |= E2F_FLAG_CANCEL; } #endif static void parse_extended_opts(e2fsck_t ctx, const char *opts) { char *buf, *token, *next, *p, *arg; int len, ea_ver; int extended_usage = 0; len = strlen(opts); buf = malloc(len+1); if (!buf) { fprintf(stderr, _("Couldn't allocate memory to parse " "extended options!\n")); exit(1); } strcpy(buf, opts); for (token = buf; token && *token; token = next) { p = strchr(token, ','); next = 0; if (p) { *p = 0; next = p+1; } arg = strchr(token, '='); if (arg) { *arg = 0; arg++; } if (strcmp(token, "ea_ver") == 0) { if (!arg) { extended_usage++; continue; } ea_ver = strtoul(arg, &p, 0); if (*p || ((ea_ver != 1) && (ea_ver != 2))) { fprintf(stderr, _("Invalid EA version.\n")); extended_usage++; continue; } ctx->ext_attr_ver = ea_ver; } else extended_usage++; } if (extended_usage) { fprintf(stderr, _("Extended options are separated by commas, " "and may take an argument which\n" "is set off by an equals ('=') sign. " "Valid raid options are:\n" "\tea_ver=program_name = *argv; else ctx->program_name = "e2fsck"; while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsD")) != EOF) switch (c) { case 'C': ctx->progress = e2fsck_update_progress; ctx->progress_fd = atoi(optarg); if (!ctx->progress_fd) break; /* Validate the file descriptor to avoid disasters */ fd = dup(ctx->progress_fd); if (fd < 0) { fprintf(stderr, _("Error validating file descriptor %d: %s\n"), ctx->progress_fd, error_message(errno)); fatal_error(ctx, _("Invalid completion information file descriptor")); } else close(fd); break; case 'D': ctx->options |= E2F_OPT_COMPRESS_DIRS; break; case 'E': extended_opts = optarg; break; case 'p': case 'a': ctx->options |= E2F_OPT_PREEN; ctx->options &= ~(E2F_OPT_YES|E2F_OPT_NO); break; case 'n': ctx->options |= E2F_OPT_NO; ctx->options &= ~(E2F_OPT_YES|E2F_OPT_PREEN); break; case 'y': ctx->options |= E2F_OPT_YES; ctx->options &= ~(E2F_OPT_PREEN|E2F_OPT_NO); break; case 't': #ifdef RESOURCE_TRACK if (ctx->options & E2F_OPT_TIME) ctx->options |= E2F_OPT_TIME2; else ctx->options |= E2F_OPT_TIME; #else fprintf(stderr, _("The -t option is not " "supported on this version of e2fsck.\n")); #endif break; case 'c': if (cflag++) ctx->options |= E2F_OPT_WRITECHECK; ctx->options |= E2F_OPT_CHECKBLOCKS; break; case 'r': /* What we do by default, anyway! */ break; case 'b': ctx->use_superblock = atoi(optarg); ctx->flags |= E2F_FLAG_SB_SPECIFIED; break; case 'B': ctx->blocksize = atoi(optarg); break; case 'I': ctx->inode_buffer_blocks = atoi(optarg); break; case 'j': ctx->journal_name = optarg; break; case 'P': ctx->process_inode_size = atoi(optarg); break; case 'L': replace_bad_blocks++; case 'l': bad_blocks_file = (char *) malloc(strlen(optarg)+1); if (!bad_blocks_file) fatal_error(ctx, "Couldn't malloc bad_blocks_file"); strcpy(bad_blocks_file, optarg); break; case 'd': ctx->options |= E2F_OPT_DEBUG; break; case 'f': ctx->options |= E2F_OPT_FORCE; break; case 'F': flush = 1; break; case 'v': verbose = 1; break; case 'V': show_version_only = 1; break; #ifdef MTRACE case 'M': mallwatch = (void *) strtol(optarg, NULL, 0); break; #endif case 'N': ctx->device_name = optarg; break; #ifdef ENABLE_SWAPFS case 's': normalize_swapfs = 1; case 'S': swapfs = 1; break; #else case 's': case 'S': fprintf(stderr, _("Byte-swapping filesystems " "not compiled in this version " "of e2fsck\n")); exit(1); #endif default: usage(ctx); } if (show_version_only) return 0; if (optind != argc - 1) usage(ctx); if ((ctx->options & E2F_OPT_NO) && !bad_blocks_file && !cflag && !swapfs && !(ctx->options & E2F_OPT_COMPRESS_DIRS)) ctx->options |= E2F_OPT_READONLY; ctx->filesystem_name = argv[optind]; if (extended_opts) parse_extended_opts(ctx, extended_opts); if (flush) { fd = open(ctx->filesystem_name, O_RDONLY, 0); if (fd < 0) { com_err("open", errno, _("while opening %s for flushing"), ctx->filesystem_name); fatal_error(ctx, 0); } if ((retval = ext2fs_sync_device(fd, 1))) { com_err("ext2fs_sync_device", retval, _("while trying to flush %s"), ctx->filesystem_name); fatal_error(ctx, 0); } close(fd); } #ifdef ENABLE_SWAPFS if (swapfs) { if (cflag || bad_blocks_file) { fprintf(stderr, _("Incompatible options not " "allowed when byte-swapping.\n")); exit(FSCK_USAGE); } } #endif if (cflag && bad_blocks_file) { fprintf(stderr, _("The -c and the -l/-L options may " "not be both used at the same time.\n")); exit(FSCK_USAGE); } #ifdef HAVE_SIGNAL_H /* * Set up signal action */ memset(&sa, 0, sizeof(struct sigaction)); sa.sa_handler = signal_cancel; sigaction(SIGINT, &sa, 0); sigaction(SIGTERM, &sa, 0); #ifdef SA_RESTART sa.sa_flags = SA_RESTART; #endif e2fsck_global_ctx = ctx; sa.sa_handler = signal_progress_on; sigaction(SIGUSR1, &sa, 0); sa.sa_handler = signal_progress_off; sigaction(SIGUSR2, &sa, 0); #endif /* Update our PATH to include /sbin if we need to run badblocks */ if (cflag) { char *oldpath = getenv("PATH"); if (oldpath) { char *newpath; newpath = (char *) malloc(sizeof (PATH_SET) + 1 + strlen (oldpath)); if (!newpath) fatal_error(ctx, "Couldn't malloc() newpath"); strcpy (newpath, PATH_SET); strcat (newpath, ":"); strcat (newpath, oldpath); putenv (newpath); } else putenv (PATH_SET); } #ifdef CONFIG_JBD_DEBUG if (getenv("E2FSCK_JBD_DEBUG")) journal_enable_debug = atoi(getenv("E2FSCK_JBD_DEBUG")); #endif return 0; } static const char *my_ver_string = E2FSPROGS_VERSION; static const char *my_ver_date = E2FSPROGS_DATE; int main (int argc, char *argv[]) { errcode_t retval = 0; int exit_value = FSCK_OK; ext2_filsys fs = 0; io_manager io_ptr; struct ext2_super_block *sb; const char *lib_ver_date; int my_ver, lib_ver; e2fsck_t ctx; struct problem_context pctx; int flags, run_result; clear_problem_context(&pctx); #ifdef MTRACE mtrace(); #endif #ifdef MCHECK mcheck(0); #endif #ifdef ENABLE_NLS setlocale(LC_MESSAGES, ""); setlocale(LC_CTYPE, ""); bindtextdomain(NLS_CAT_NAME, LOCALEDIR); textdomain(NLS_CAT_NAME); #endif my_ver = ext2fs_parse_version_string(my_ver_string); lib_ver = ext2fs_get_library_version(0, &lib_ver_date); if (my_ver > lib_ver) { fprintf( stderr, _("Error: ext2fs library version " "out of date!\n")); show_version_only++; } retval = PRS(argc, argv, &ctx); if (retval) { com_err("e2fsck", retval, _("while trying to initialize program")); exit(FSCK_ERROR); } reserve_stdio_fds(); #ifdef RESOURCE_TRACK init_resource_track(&ctx->global_rtrack); #endif if (!(ctx->options & E2F_OPT_PREEN) || show_version_only) fprintf (stderr, "e2fsck %s (%s)\n", my_ver_string, my_ver_date); if (show_version_only) { fprintf(stderr, _("\tUsing %s, %s\n"), error_message(EXT2_ET_BASE), lib_ver_date); exit(FSCK_OK); } check_mount(ctx); if (!(ctx->options & E2F_OPT_PREEN) && !(ctx->options & E2F_OPT_NO) && !(ctx->options & E2F_OPT_YES)) { if (!isatty (0) || !isatty (1)) fatal_error(ctx, _("need terminal for interactive repairs")); } ctx->superblock = ctx->use_superblock; restart: #if 1 io_ptr = unix_io_manager; #else io_ptr = test_io_manager; test_io_backing_manager = unix_io_manager; #endif flags = 0; if ((ctx->options & E2F_OPT_READONLY) == 0) flags |= EXT2_FLAG_RW; if (ctx->superblock && ctx->blocksize) { retval = ext2fs_open(ctx->filesystem_name, flags, ctx->superblock, ctx->blocksize, io_ptr, &fs); } else if (ctx->superblock) { int blocksize; for (blocksize = EXT2_MIN_BLOCK_SIZE; blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) { retval = ext2fs_open(ctx->filesystem_name, flags, ctx->superblock, blocksize, io_ptr, &fs); if (!retval) break; } } else retval = ext2fs_open(ctx->filesystem_name, flags, 0, 0, io_ptr, &fs); if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) && !(ctx->flags & E2F_FLAG_SB_SPECIFIED) && ((retval == EXT2_ET_BAD_MAGIC) || ((retval == 0) && ext2fs_check_desc(fs)))) { if (!fs || (fs->group_desc_count > 1)) { printf(_("%s trying backup blocks...\n"), retval ? _("Couldn't find ext2 superblock,") : _("Group descriptors look bad...")); get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr); if (fs) ext2fs_close(fs); goto restart; } } if (retval) { com_err(ctx->program_name, retval, _("while trying to open %s"), ctx->filesystem_name); if (retval == EXT2_ET_REV_TOO_HIGH) { printf(_("The filesystem revision is apparently " "too high for this version of e2fsck.\n" "(Or the filesystem superblock " "is corrupt)\n\n")); fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); } else if (retval == EXT2_ET_SHORT_READ) printf(_("Could this be a zero-length partition?\n")); else if ((retval == EPERM) || (retval == EACCES)) printf(_("You must have %s access to the " "filesystem or be root\n"), (ctx->options & E2F_OPT_READONLY) ? "r/o" : "r/w"); else if (retval == ENXIO) printf(_("Possibly non-existent or swap device?\n")); #ifdef EROFS else if (retval == EROFS) printf(_("Disk write-protected; use the -n option " "to do a read-only\n" "check of the device.\n")); #endif else fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); fatal_error(ctx, 0); } ctx->fs = fs; fs->priv_data = ctx; sb = fs->super; if (sb->s_rev_level > E2FSCK_CURRENT_REV) { com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH, _("while trying to open %s"), ctx->filesystem_name); get_newer: fatal_error(ctx, _("Get a newer version of e2fsck!")); } /* * Set the device name, which is used whenever we print error * or informational messages to the user. */ if (ctx->device_name == 0 && (sb->s_volume_name[0] != 0)) { char *cp = malloc(sizeof(sb->s_volume_name)+1); if (cp) { strncpy(cp, sb->s_volume_name, sizeof(sb->s_volume_name)); cp[sizeof(sb->s_volume_name)] = 0; ctx->device_name = cp; } } if (ctx->device_name == 0) ctx->device_name = ctx->filesystem_name; /* * Make sure the ext3 superblock fields are consistent. */ retval = e2fsck_check_ext3_journal(ctx); if (retval) { com_err(ctx->program_name, retval, _("while checking ext3 journal for %s"), ctx->device_name); fatal_error(ctx, 0); } /* * Check to see if we need to do ext3-style recovery. If so, * do it, and then restart the fsck. */ if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) { if (ctx->options & E2F_OPT_READONLY) { printf(_("Warning: skipping journal recovery " "because doing a read-only filesystem " "check.\n")); io_channel_flush(ctx->fs->io); } else { retval = e2fsck_run_ext3_journal(ctx); if (retval) { com_err(ctx->program_name, retval, _("while recovering ext3 journal of %s"), ctx->device_name); fatal_error(ctx, 0); } ext2fs_close(ctx->fs); ctx->fs = 0; goto restart; } } /* * Check for compatibility with the feature sets. We need to * be more stringent than ext2fs_open(). */ if ((sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) || (sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP)) { com_err(ctx->program_name, EXT2_ET_UNSUPP_FEATURE, "(%s)", ctx->device_name); goto get_newer; } if (sb->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) { com_err(ctx->program_name, EXT2_ET_RO_UNSUPP_FEATURE, "(%s)", ctx->device_name); goto get_newer; } #ifdef ENABLE_COMPRESSION if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION) com_err(ctx->program_name, 0, _("Warning: compression support is experimental.\n")); #endif #ifndef ENABLE_HTREE if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) { com_err(ctx->program_name, 0, _("E2fsck not compiled with HTREE support,\n\t" "but filesystem %s has HTREE directories.\n"), ctx->device_name); goto get_newer; } #endif /* * If the user specified a specific superblock, presumably the * master superblock has been trashed. So we mark the * superblock as dirty, so it can be written out. */ if (ctx->superblock && !(ctx->options & E2F_OPT_READONLY)) ext2fs_mark_super_dirty(fs); /* * We only update the master superblock because (a) paranoia; * we don't want to corrupt the backup superblocks, and (b) we * don't need to update the mount count and last checked * fields in the backup superblock (the kernel doesn't * update the backup superblocks anyway). */ fs->flags |= EXT2_FLAG_MASTER_SB_ONLY; ehandler_init(fs->io); if (ctx->superblock) set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0); check_super_block(ctx); if (ctx->flags & E2F_FLAG_SIGNAL_MASK) fatal_error(ctx, 0); check_if_skip(ctx); if (bad_blocks_file) read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks); else if (cflag) test_disk(ctx); if (ctx->flags & E2F_FLAG_SIGNAL_MASK) fatal_error(ctx, 0); #ifdef ENABLE_SWAPFS if (normalize_swapfs) { if ((fs->flags & EXT2_FLAG_SWAP_BYTES) == ext2fs_native_flag()) { fprintf(stderr, _("%s: Filesystem byte order " "already normalized.\n"), ctx->device_name); fatal_error(ctx, 0); } } if (swapfs) { swap_filesys(ctx); if (ctx->flags & E2F_FLAG_SIGNAL_MASK) fatal_error(ctx, 0); } #endif /* * Mark the system as valid, 'til proven otherwise */ ext2fs_mark_valid(fs); retval = ext2fs_read_bb_inode(fs, &fs->badblocks); if (retval) { com_err(ctx->program_name, retval, _("while reading bad blocks inode")); preenhalt(ctx); printf(_("This doesn't bode well," " but we'll try to go on...\n")); } run_result = e2fsck_run(ctx); e2fsck_clear_progbar(ctx); if (run_result == E2F_FLAG_RESTART) { printf(_("Restarting e2fsck from the beginning...\n")); retval = e2fsck_reset_context(ctx); if (retval) { com_err(ctx->program_name, retval, _("while resetting context")); fatal_error(ctx, 0); } ext2fs_close(fs); goto restart; } if (run_result & E2F_FLAG_CANCEL) { printf(_("%s: e2fsck canceled.\n"), ctx->device_name ? ctx->device_name : ctx->filesystem_name); exit_value |= FSCK_CANCELED; } if (run_result & E2F_FLAG_ABORT) fatal_error(ctx, _("aborted")); #ifdef MTRACE mtrace_print("Cleanup"); #endif if (ext2fs_test_changed(fs)) { exit_value |= FSCK_NONDESTRUCT; if (!(ctx->options & E2F_OPT_PREEN)) printf(_("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"), ctx->device_name); if (ctx->mount_flags & EXT2_MF_ISROOT) { printf(_("%s: ***** REBOOT LINUX *****\n"), ctx->device_name); exit_value |= FSCK_REBOOT; } } if (!ext2fs_test_valid(fs)) { printf(_("\n%s: ********** WARNING: Filesystem still has " "errors **********\n\n"), ctx->device_name); exit_value |= FSCK_UNCORRECTED; exit_value &= ~FSCK_NONDESTRUCT; } if (exit_value & FSCK_CANCELED) exit_value &= ~FSCK_NONDESTRUCT; else { show_stats(ctx); if (!(ctx->options & E2F_OPT_READONLY)) { if (ext2fs_test_valid(fs)) { if (!(sb->s_state & EXT2_VALID_FS)) exit_value |= FSCK_NONDESTRUCT; sb->s_state = EXT2_VALID_FS; } else sb->s_state &= ~EXT2_VALID_FS; sb->s_mnt_count = 0; sb->s_lastcheck = time(NULL); ext2fs_mark_super_dirty(fs); } } e2fsck_write_bitmaps(ctx); ext2fs_close(fs); ctx->fs = NULL; e2fsck_free_context(ctx); #ifdef RESOURCE_TRACK if (ctx->options & E2F_OPT_TIME) print_resource_track(NULL, &ctx->global_rtrack); #endif return exit_value; }