/* * 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% */ #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */ #include "config.h" #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_SYS_IOCTL_H #include #endif #ifdef HAVE_MALLOC_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_DIRENT_H #include #endif #include #include "e2p/e2p.h" #include "et/com_err.h" #include "e2p/e2p.h" #include "uuid/uuid.h" #include "support/plausible.h" #include "support/devname.h" #include "e2fsck.h" #include "problem.h" #include "jfs_user.h" #include "../version.h" /* Command line options */ static int cflag; /* check disk */ static int show_version_only; static int verbose; static int replace_bad_blocks; static int keep_bad_blocks; static char *bad_blocks_file; e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */ #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */ int journal_enable_debug = -1; #endif static void usage(e2fsck_t ctx) { fprintf(stderr, _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n" "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n" "\t\t[-E extended-options] [-z undo_file] device\n"), ctx->program_name ? ctx->program_name : "e2fsck"); fprintf(stderr, "%s", _("\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 and add them to the badblock list\n" " -f Force checking even if filesystem is marked clean\n")); fprintf(stderr, "%s", _("" " -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" " -z undo_file Create an undo file\n" )); exit(FSCK_USAGE); } static void show_stats(e2fsck_t ctx) { ext2_filsys fs = ctx->fs; ext2_ino_t inodes, inodes_used; blk64_t blocks, blocks_used; unsigned int dir_links; unsigned int num_files, num_links; __u32 *mask, m; int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0; int i, j, printed = 0; 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 = ext2fs_blocks_count(fs->super); blocks_used = (ext2fs_blocks_count(fs->super) - ext2fs_free_blocks_count(fs->super)); if (inodes_used > 0) { frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used; frag_percent_file = (frag_percent_file + 5) / 10; frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used; frag_percent_dir = (frag_percent_dir + 5) / 10; frag_percent_total = ((10000 * (ctx->fs_fragmented + ctx->fs_fragmented_dir)) / inodes_used); frag_percent_total = (frag_percent_total + 5) / 10; } if (!verbose) { log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), " "%llu/%llu blocks\n"), ctx->device_name, inodes_used, inodes, frag_percent_total / 10, frag_percent_total % 10, (unsigned long long) blocks_used, (unsigned long long) blocks); return; } profile_get_boolean(ctx->profile, "options", "report_features", 0, 0, &i); if (verbose && i) { log_out(ctx, "\nFilesystem features:"); mask = &ctx->fs->super->s_feature_compat; for (i = 0; i < 3; i++, mask++) { for (j = 0, m = 1; j < 32; j++, m <<= 1) { if (*mask & m) { log_out(ctx, " %s", e2p_feature2string(i, m)); printed++; } } } if (printed == 0) log_out(ctx, " (none)"); log_out(ctx, "\n"); } log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n", "\n%12u inodes used (%2.2f%%, out of %u)\n", inodes_used), inodes_used, 100.0 * inodes_used / inodes, inodes); log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n", "%12u non-contiguous files (%0d.%d%%)\n", ctx->fs_fragmented), ctx->fs_fragmented, frag_percent_file / 10, frag_percent_file % 10); log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n", "%12u non-contiguous directories (%0d.%d%%)\n", ctx->fs_fragmented_dir), ctx->fs_fragmented_dir, frag_percent_dir / 10, frag_percent_dir % 10); log_out(ctx, _(" # of inodes with ind/dind/tind blocks: " "%u/%u/%u\n"), ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count); for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--) if (ctx->extent_depth_count[j]) break; if (++j) { log_out(ctx, "%s", _(" Extent depth histogram: ")); for (i=0; i < j; i++) { if (i) fputc('/', stdout); log_out(ctx, "%u", ctx->extent_depth_count[i]); } log_out(ctx, "\n"); } log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n", "%12llu blocks used (%2.2f%%, out of %llu)\n", blocks_used), (unsigned long long) blocks_used, 100.0 * blocks_used / blocks, (unsigned long long) blocks); log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n", ctx->fs_badblocks_count), ctx->fs_badblocks_count); log_out(ctx, P_("%12u large file\n", "%12u large files\n", ctx->large_files), ctx->large_files); log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n", ctx->fs_regular_count), ctx->fs_regular_count); log_out(ctx, P_("%12u directory\n", "%12u directories\n", ctx->fs_directory_count), ctx->fs_directory_count); log_out(ctx, P_("%12u character device file\n", "%12u character device files\n", ctx->fs_chardev_count), ctx->fs_chardev_count); log_out(ctx, P_("%12u block device file\n", "%12u block device files\n", ctx->fs_blockdev_count), ctx->fs_blockdev_count); log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count), ctx->fs_fifo_count); log_out(ctx, P_("%12u link\n", "%12u links\n", num_links), ctx->fs_links_count - dir_links); log_out(ctx, P_("%12u symbolic link", "%12u symbolic links", ctx->fs_symlinks_count), ctx->fs_symlinks_count); log_out(ctx, P_(" (%u fast symbolic link)\n", " (%u fast symbolic links)\n", ctx->fs_fast_symlinks_count), ctx->fs_fast_symlinks_count); log_out(ctx, P_("%12u socket\n", "%12u sockets\n", ctx->fs_sockets_count), ctx->fs_sockets_count); log_out(ctx, "------------\n"); log_out(ctx, P_("%12u file\n", "%12u files\n", num_files), num_files); } 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, and we're not doing * a read/write check, then everything's fine. */ if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) || ((ctx->mount_flags & EXT2_MF_ISROOT) && (ctx->mount_flags & EXT2_MF_READONLY) && !(ctx->options & E2F_OPT_WRITECHECK))) return; if (((ctx->options & E2F_OPT_READONLY) || ((ctx->options & E2F_OPT_FORCE) && (ctx->mount_flags & EXT2_MF_READONLY))) && !(ctx->options & E2F_OPT_WRITECHECK)) { if (ctx->mount_flags & EXT2_MF_MOUNTED) log_out(ctx, _("Warning! %s is mounted.\n"), ctx->filesystem_name); else log_out(ctx, _("Warning! %s is in use.\n"), ctx->filesystem_name); return; } if (ctx->mount_flags & EXT2_MF_MOUNTED) log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name); else log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name); if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY) fatal_error(ctx, _("Cannot continue, aborting.\n\n")); puts("\007\007\007\007"); log_out(ctx, "%s", _("\n\nWARNING!!! " "The filesystem is mounted. " "If you continue you ***WILL***\n" "cause ***SEVERE*** filesystem damage.\n\n")); puts("\007\007\007"); cont = ask_yn(ctx, _("Do you really want to continue"), 0); if (!cont) { printf("%s", _("check aborted.\n")); exit (0); } return; } static int is_on_batt(void) { FILE *f; DIR *d; char tmp[80], tmp2[80], fname[NAME_MAX+30]; unsigned int acflag; struct dirent* de; f = fopen("/sys/class/power_supply/AC/online", "r"); if (f) { if (fscanf(f, "%u\n", &acflag) == 1) { fclose(f); return (!acflag); } fclose(f); } f = fopen("/proc/apm", "r"); if (f) { if (fscanf(f, "%79s %79s %79s %x", tmp, tmp, tmp, &acflag) != 4) acflag = 1; fclose(f); return (acflag != 1); } d = opendir("/proc/acpi/ac_adapter"); if (d) { while ((de=readdir(d)) != NULL) { if (!strncmp(".", de->d_name, 1)) continue; snprintf(fname, sizeof(fname), "/proc/acpi/ac_adapter/%s/state", de->d_name); f = fopen(fname, "r"); if (!f) continue; if (fscanf(f, "%79s %79s", tmp2, tmp) != 2) tmp[0] = 0; fclose(f); if (strncmp(tmp, "off-line", 8) == 0) { closedir(d); return 1; } } closedir(d); } return 0; } /* * 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; struct problem_context pctx; const char *reason = NULL; unsigned int reason_arg = 0; long next_check; int batt = is_on_batt(); int defer_check_on_battery; int broken_system_clock; time_t lastcheck; if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED) return; profile_get_boolean(ctx->profile, "options", "broken_system_clock", 0, 0, &broken_system_clock); if (ctx->flags & E2F_FLAG_TIME_INSANE) broken_system_clock = 1; profile_get_boolean(ctx->profile, "options", "defer_check_on_battery", 0, 1, &defer_check_on_battery); if (!defer_check_on_battery) batt = 0; if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag) return; if (ctx->options & E2F_OPT_JOURNAL_ONLY) goto skip; lastcheck = fs->super->s_lastcheck; if (lastcheck > ctx->now) lastcheck -= ctx->time_fudge; if ((fs->super->s_state & EXT2_ERROR_FS) || !ext2fs_test_valid(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 (check_backup_super_block(ctx)) reason = _(" primary superblock features different from backup"); 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; if (batt && (fs->super->s_mnt_count < (unsigned) fs->super->s_max_mnt_count*2)) reason = 0; } else if (!broken_system_clock && fs->super->s_checkinterval && (ctx->now < lastcheck)) { reason = _(" has filesystem last checked time in the future"); if (batt) reason = 0; } else if (!broken_system_clock && fs->super->s_checkinterval && ((ctx->now - lastcheck) >= ((time_t) fs->super->s_checkinterval))) { reason = _(" has gone %u days without being checked"); reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24); if (batt && ((ctx->now - fs->super->s_lastcheck) < fs->super->s_checkinterval*2)) reason = 0; } else if (broken_system_clock && fs->super->s_checkinterval) { log_out(ctx, "%s: ", ctx->device_name); log_out(ctx, "%s", _("ignoring check interval, broken_system_clock set\n")); } if (reason) { log_out(ctx, "%s", ctx->device_name); log_out(ctx, reason, reason_arg); log_out(ctx, "%s", _(", check forced.\n")); return; } /* * Update the global counts from the block group counts. This * is needed since modern kernels don't update the global * counts so as to avoid locking the entire file system. So * if the filesystem is not unmounted cleanly, the global * counts may not be accurate. Update them here if we can, * for the benefit of users who might examine the file system * using dumpe2fs. (This is for cosmetic reasons only.) */ clear_problem_context(&pctx); pctx.ino = fs->super->s_free_inodes_count; pctx.ino2 = ctx->free_inodes; if ((pctx.ino != pctx.ino2) && !(ctx->options & E2F_OPT_READONLY) && fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) { fs->super->s_free_inodes_count = ctx->free_inodes; ext2fs_mark_super_dirty(fs); } clear_problem_context(&pctx); pctx.blk = ext2fs_free_blocks_count(fs->super); pctx.blk2 = ctx->free_blocks; if ((pctx.blk != pctx.blk2) && !(ctx->options & E2F_OPT_READONLY) && fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) { ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks); ext2fs_mark_super_dirty(fs); } /* Print the summary message when we're skipping a full check */ log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"), ctx->device_name, fs->super->s_inodes_count - fs->super->s_free_inodes_count, fs->super->s_inodes_count, (unsigned long long) ext2fs_blocks_count(fs->super) - ext2fs_free_blocks_count(fs->super), (unsigned long long) ext2fs_blocks_count(fs->super)); next_check = 100000; if (fs->super->s_max_mnt_count > 0) { next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count; if (next_check <= 0) next_check = 1; } if (!broken_system_clock && fs->super->s_checkinterval && ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval)) next_check = 1; if (next_check <= 5) { if (next_check == 1) { if (batt) log_out(ctx, "%s", _(" (check deferred; on battery)")); else log_out(ctx, "%s", _(" (check after next mount)")); } else log_out(ctx, _(" (check in %ld mounts)"), next_check); } log_out(ctx, "\n"); skip: ext2fs_close_free(&ctx->fs); e2fsck_free_context(ctx); exit(FSCK_OK); } /* * For completion notice */ struct percent_tbl { int max_pass; int table[32]; }; static struct percent_tbl e2fsck_tbl = { 5, { 0, 70, 90, 92, 95, 100 } }; static char bar[128], spaces[128]; 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]); } void e2fsck_clear_progbar(e2fsck_t ctx) { if (!(ctx->flags & E2F_FLAG_PROG_BAR)) return; printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80), ctx->stop_meta); fflush(stdout); ctx->flags &= ~E2F_FLAG_PROG_BAR; } int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent, unsigned int dpynum) { static const char spinner[] = "\\|/-"; int i; unsigned int tick; struct timeval tv; int dpywidth; int fixed_percent; if (ctx->flags & E2F_FLAG_PROG_SUPPRESS) return 0; /* * Calculate the new progress position. If the * percentage hasn't changed, then we skip out right * away. */ fixed_percent = (int) ((10 * percent) + 0.5); if (ctx->progress_last_percent == fixed_percent) return 0; ctx->progress_last_percent = fixed_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) && (fixed_percent != 0) && (fixed_percent != 1000)) 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; dpywidth = 66 - strlen(label); dpywidth = 8 * (dpywidth / 8); if (dpynum) dpywidth -= 8; i = ((percent * dpywidth) + 50) / 100; printf("%s%s: |%s%s", ctx->start_meta, label, bar + (sizeof(bar) - (i+1)), spaces + (sizeof(spaces) - (dpywidth - i + 1))); if (fixed_percent == 1000) fputc('|', stdout); else fputc(spinner[ctx->progress_pos & 3], stdout); printf(" %4.1f%% ", percent); if (dpynum) printf("%u\r", dpynum); else fputs(" \r", stdout); fputs(ctx->stop_meta, stdout); if (fixed_percent == 1000) e2fsck_clear_progbar(ctx); fflush(stdout); return 0; } static int e2fsck_update_progress(e2fsck_t ctx, int pass, unsigned long cur, unsigned long max) { char buf[1024]; float percent; if (pass == 0) return 0; if (ctx->progress_fd) { snprintf(buf, sizeof(buf), "%d %lu %lu %s\n", pass, cur, max, ctx->device_name); write_all(ctx->progress_fd, buf, strlen(buf)); } else { percent = calc_percent(&e2fsck_tbl, pass, cur, max); e2fsck_simple_progress(ctx, ctx->device_name, percent, 0); } return 0; } #define PATH_SET "PATH=/sbin" /* * Make sure 0,1,2 file descriptors are open, so that we don't open * the filesystem using the same file descriptor as stdout or stderr. */ static void reserve_stdio_fds(void) { int fd = 0; while (fd <= 2) { fd = open("/dev/null", O_RDWR); if (fd < 0) { fprintf(stderr, _("ERROR: Couldn't open " "/dev/null (%s)\n"), strerror(errno)); return; } } (void) close(fd); } #ifdef HAVE_SIGNAL_H static void signal_progress_on(int sig EXT2FS_ATTR((unused))) { e2fsck_t ctx = e2fsck_global_ctx; if (!ctx) return; ctx->progress = e2fsck_update_progress; } static void signal_progress_off(int sig EXT2FS_ATTR((unused))) { e2fsck_t ctx = e2fsck_global_ctx; if (!ctx) return; e2fsck_clear_progbar(ctx); ctx->progress = 0; } static void signal_cancel(int sig EXT2FS_ATTR((unused))) { 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 ea_ver; int extended_usage = 0; unsigned long long reada_kb; buf = string_copy(ctx, opts, 0); 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, "%s", _("Invalid EA version.\n")); extended_usage++; continue; } ctx->ext_attr_ver = ea_ver; } else if (strcmp(token, "readahead_kb") == 0) { if (!arg) { extended_usage++; continue; } reada_kb = strtoull(arg, &p, 0); if (*p) { fprintf(stderr, "%s", _("Invalid readahead buffer size.\n")); extended_usage++; continue; } ctx->readahead_kb = reada_kb; } else if (strcmp(token, "fragcheck") == 0) { ctx->options |= E2F_OPT_FRAGCHECK; continue; } else if (strcmp(token, "journal_only") == 0) { if (arg) { extended_usage++; continue; } ctx->options |= E2F_OPT_JOURNAL_ONLY; } else if (strcmp(token, "discard") == 0) { ctx->options |= E2F_OPT_DISCARD; continue; } else if (strcmp(token, "nodiscard") == 0) { ctx->options &= ~E2F_OPT_DISCARD; continue; } else if (strcmp(token, "optimize_extents") == 0) { ctx->options &= ~E2F_OPT_NOOPT_EXTENTS; continue; } else if (strcmp(token, "no_optimize_extents") == 0) { ctx->options |= E2F_OPT_NOOPT_EXTENTS; continue; } else if (strcmp(token, "inode_count_fullmap") == 0) { ctx->options |= E2F_OPT_ICOUNT_FULLMAP; continue; } else if (strcmp(token, "no_inode_count_fullmap") == 0) { ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP; continue; } else if (strcmp(token, "log_filename") == 0) { if (!arg) extended_usage++; else ctx->log_fn = string_copy(ctx, arg, 0); continue; } else if (strcmp(token, "problem_log") == 0) { if (!arg) extended_usage++; else ctx->problem_log_fn = string_copy(ctx, arg, 0); continue; } else if (strcmp(token, "bmap2extent") == 0) { ctx->options |= E2F_OPT_CONVERT_BMAP; continue; } else if (strcmp(token, "fixes_only") == 0) { ctx->options |= E2F_OPT_FIXES_ONLY; continue; } else if (strcmp(token, "unshare_blocks") == 0) { ctx->options |= E2F_OPT_UNSHARE_BLOCKS; ctx->options |= E2F_OPT_FORCE; continue; } else if (strcmp(token, "check_encoding") == 0) { ctx->options |= E2F_OPT_CHECK_ENCODING; continue; #ifdef CONFIG_DEVELOPER_FEATURES } else if (strcmp(token, "clear_all_uninit_bits") == 0) { ctx->options |= E2F_OPT_CLEAR_UNINIT; continue; #endif } else { fprintf(stderr, _("Unknown extended option: %s\n"), token); extended_usage++; } } free(buf); if (extended_usage) { fputs(_("\nExtended options are separated by commas, " "and may take an argument which\n" "is set off by an equals ('=') sign. " "Valid extended options are:\n\n"), stderr); fputs(_("\tea_ver=\n"), stderr); fputs("\tfragcheck\n", stderr); fputs("\tjournal_only\n", stderr); fputs("\tdiscard\n", stderr); fputs("\tnodiscard\n", stderr); fputs("\toptimize_extents\n", stderr); fputs("\tno_optimize_extents\n", stderr); fputs("\tinode_count_fullmap\n", stderr); fputs("\tno_inode_count_fullmap\n", stderr); fputs(_("\treadahead_kb=\n"), stderr); fputs("\tbmap2extent\n", stderr); fputs("\tunshare_blocks\n", stderr); fputs("\tfixes_only\n", stderr); fputs("\tcheck_encoding\n", stderr); fputc('\n', stderr); exit(1); } } static void syntax_err_report(const char *filename, long err, int line_num) { fprintf(stderr, _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"), filename, line_num, error_message(err)); exit(FSCK_ERROR); } static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 }; static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx) { int flush = 0; int c, fd; #ifdef MTRACE extern void *mallwatch; #endif e2fsck_t ctx; errcode_t retval; #ifdef HAVE_SIGNAL_H struct sigaction sa; #endif char *extended_opts = 0; char *cp; int res; /* result of sscanf */ #ifdef CONFIG_JBD_DEBUG char *jbd_debug; #endif unsigned long long phys_mem_kb, blk; retval = e2fsck_allocate_context(&ctx); if (retval) return retval; *ret_ctx = ctx; e2fsck_global_ctx = ctx; setvbuf(stdout, NULL, _IONBF, BUFSIZ); setvbuf(stderr, NULL, _IONBF, BUFSIZ); if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) { ctx->interactive = 1; } else { ctx->start_meta[0] = '\001'; ctx->stop_meta[0] = '\002'; } memset(bar, '=', sizeof(bar)-1); memset(spaces, ' ', sizeof(spaces)-1); add_error_table(&et_ext2_error_table); add_error_table(&et_prof_error_table); blkid_get_cache(&ctx->blkid, NULL); if (argc && *argv) ctx->program_name = *argv; else usage(NULL); phys_mem_kb = get_memory_size() / 1024; ctx->readahead_kb = ~0ULL; while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF) switch (c) { case 'C': ctx->progress = e2fsck_update_progress; res = sscanf(optarg, "%d", &ctx->progress_fd); if (res != 1) goto sscanf_err; if (ctx->progress_fd < 0) { ctx->progress = 0; ctx->progress_fd = ctx->progress_fd * -1; } 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': if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) { conflict_opt: fatal_error(ctx, _("Only one of the options -p/-a, -n or -y may be specified.")); } ctx->options |= E2F_OPT_PREEN; break; case 'n': if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN)) goto conflict_opt; ctx->options |= E2F_OPT_NO; break; case 'y': if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO)) goto conflict_opt; ctx->options |= E2F_OPT_YES; 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': res = sscanf(optarg, "%llu", &blk); ctx->use_superblock = blk; if (res != 1) goto sscanf_err; ctx->flags |= E2F_FLAG_SB_SPECIFIED; break; case 'B': ctx->blocksize = atoi(optarg); break; case 'I': res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks); if (res != 1) goto sscanf_err; break; case 'j': ctx->journal_name = get_devname(ctx->blkid, optarg, NULL); if (!ctx->journal_name) { com_err(ctx->program_name, 0, _("Unable to resolve '%s'"), optarg); fatal_error(ctx, 0); } break; case 'P': res = sscanf(optarg, "%d", &ctx->process_inode_size); if (res != 1) goto sscanf_err; break; case 'L': replace_bad_blocks++; /* fall through */ case 'l': if (bad_blocks_file) free(bad_blocks_file); bad_blocks_file = string_copy(ctx, optarg, 0); 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 = string_copy(ctx, optarg, 0); break; case 'k': keep_bad_blocks++; break; case 'z': ctx->undo_file = optarg; break; default: usage(ctx); } if (show_version_only) return 0; if (optind != argc - 1) usage(ctx); if ((ctx->options & E2F_OPT_NO) && (ctx->options & E2F_OPT_COMPRESS_DIRS)) { com_err(ctx->program_name, 0, "%s", _("The -n and -D options are incompatible.")); fatal_error(ctx, 0); } if ((ctx->options & E2F_OPT_NO) && cflag) { com_err(ctx->program_name, 0, "%s", _("The -n and -c options are incompatible.")); fatal_error(ctx, 0); } if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) { com_err(ctx->program_name, 0, "%s", _("The -n and -l/-L options are incompatible.")); fatal_error(ctx, 0); } if (ctx->options & E2F_OPT_NO) ctx->options |= E2F_OPT_READONLY; ctx->io_options = strchr(argv[optind], '?'); if (ctx->io_options) *ctx->io_options++ = 0; ctx->filesystem_name = get_devname(ctx->blkid, argv[optind], 0); if (!ctx->filesystem_name) { com_err(ctx->program_name, 0, _("Unable to resolve '%s'"), argv[optind]); fatal_error(ctx, 0); } if (extended_opts) parse_extended_opts(ctx, extended_opts); /* Complain about mutually exclusive rebuilding activities */ if (getenv("E2FSCK_FIXES_ONLY")) ctx->options |= E2F_OPT_FIXES_ONLY; if ((ctx->options & E2F_OPT_COMPRESS_DIRS) && (ctx->options & E2F_OPT_FIXES_ONLY)) { com_err(ctx->program_name, 0, "%s", _("The -D and -E fixes_only options are incompatible.")); fatal_error(ctx, 0); } if ((ctx->options & E2F_OPT_CONVERT_BMAP) && (ctx->options & E2F_OPT_FIXES_ONLY)) { com_err(ctx->program_name, 0, "%s", _("The -E bmap2extent and fixes_only options are incompatible.")); fatal_error(ctx, 0); } if ((cp = getenv("E2FSCK_CONFIG")) != NULL) config_fn[0] = cp; profile_set_syntax_err_cb(syntax_err_report); profile_init(config_fn, &ctx->profile); profile_get_boolean(ctx->profile, "options", "report_time", 0, 0, &c); if (c) ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2; profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0, &c); if (c) verbose = 1; profile_get_boolean(ctx->profile, "options", "no_optimize_extents", 0, 0, &c); if (c) ctx->options |= E2F_OPT_NOOPT_EXTENTS; profile_get_boolean(ctx->profile, "options", "inode_count_fullmap", 0, 0, &c); if (c) ctx->options |= E2F_OPT_ICOUNT_FULLMAP; if (ctx->readahead_kb == ~0ULL) { profile_get_integer(ctx->profile, "options", "readahead_mem_pct", 0, -1, &c); if (c >= 0 && c <= 100) ctx->readahead_kb = phys_mem_kb * c / 100; profile_get_integer(ctx->profile, "options", "readahead_kb", 0, -1, &c); if (c >= 0) ctx->readahead_kb = c; if (ctx->readahead_kb != ~0ULL && ctx->readahead_kb > phys_mem_kb) ctx->readahead_kb = phys_mem_kb; } /* Turn off discard in read-only mode */ if ((ctx->options & E2F_OPT_NO) && (ctx->options & E2F_OPT_DISCARD)) ctx->options &= ~E2F_OPT_DISCARD; 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); } if (cflag && bad_blocks_file) { fprintf(stderr, "%s", _("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 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"); char *newpath; int len = sizeof(PATH_SET) + 1; if (oldpath) len += strlen(oldpath); newpath = malloc(len); if (!newpath) fatal_error(ctx, "Couldn't malloc() newpath"); strcpy(newpath, PATH_SET); if (oldpath) { strcat(newpath, ":"); strcat(newpath, oldpath); } putenv(newpath); } #ifdef CONFIG_JBD_DEBUG jbd_debug = getenv("E2FSCK_JBD_DEBUG"); if (jbd_debug) { res = sscanf(jbd_debug, "%d", &journal_enable_debug); if (res != 1) { fprintf(stderr, _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"), jbd_debug); exit (1); } } #endif return 0; sscanf_err: fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"), c, optarg); exit (1); } static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr, ext2_filsys *ret_fs) { errcode_t retval; *ret_fs = NULL; if (ctx->superblock) { unsigned long blocksize = ctx->blocksize; if (!blocksize) { for (blocksize = EXT2_MIN_BLOCK_SIZE; blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) { retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, flags, ctx->superblock, blocksize, unix_io_manager, ret_fs); if (*ret_fs) { ext2fs_free(*ret_fs); *ret_fs = NULL; } if (!retval) break; } if (retval) return retval; } retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, flags, ctx->superblock, blocksize, io_ptr, ret_fs); } else retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options, flags, 0, 0, io_ptr, ret_fs); if (retval == 0) { (*ret_fs)->priv_data = ctx; e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE, "default", NULL); } return retval; } static const char *my_ver_string = E2FSPROGS_VERSION; static const char *my_ver_date = E2FSPROGS_DATE; static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx) { struct mmp_struct *mmp_s; unsigned int mmp_check_interval; errcode_t retval = 0; struct problem_context pctx; unsigned int wait_time = 0; clear_problem_context(&pctx); if (fs->mmp_buf == NULL) { retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf); if (retval) goto check_error; } retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf); if (retval) goto check_error; mmp_s = fs->mmp_buf; mmp_check_interval = fs->super->s_mmp_update_interval; if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL) mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL; /* * If check_interval in MMP block is larger, use that instead of * check_interval from the superblock. */ if (mmp_s->mmp_check_interval > mmp_check_interval) mmp_check_interval = mmp_s->mmp_check_interval; wait_time = mmp_check_interval * 2 + 1; if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN) retval = 0; else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK) retval = EXT2_ET_MMP_FSCK_ON; else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX) retval = EXT2_ET_MMP_UNKNOWN_SEQ; if (retval) goto check_error; /* Print warning if e2fsck will wait for more than 20 secs. */ if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) { log_out(ctx, _("MMP interval is %u seconds and total wait " "time is %u seconds. Please wait...\n"), mmp_check_interval, wait_time * 2); } return 0; check_error: if (retval == EXT2_ET_MMP_BAD_BLOCK) { if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) { fs->super->s_mmp_block = 0; ext2fs_mark_super_dirty(fs); retval = 0; } } else if (retval == EXT2_ET_MMP_FAILED) { com_err(ctx->program_name, retval, "%s", _("while checking MMP block")); dump_mmp_msg(fs->mmp_buf, NULL); } else if (retval == EXT2_ET_MMP_FSCK_ON || retval == EXT2_ET_MMP_UNKNOWN_SEQ) { com_err(ctx->program_name, retval, "%s", _("while checking MMP block")); dump_mmp_msg(fs->mmp_buf, _("If you are sure the filesystem is not " "in use on any node, run:\n" "'tune2fs -f -E clear_mmp %s'\n"), ctx->device_name); } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) { if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) { ext2fs_mmp_clear(fs); retval = 0; } } else if (retval == EXT2_ET_MMP_CSUM_INVALID) { if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) { ext2fs_mmp_clear(fs); retval = 0; } } else com_err(ctx->program_name, retval, "%s", _("while reading MMP block")); return retval; } static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr) { errcode_t retval = ENOMEM; char *tdb_dir = NULL, *tdb_file = NULL; char *dev_name, *tmp_name; int free_tdb_dir = 0; /* (re)open a specific undo file */ if (ctx->undo_file && ctx->undo_file[0] != 0) { retval = set_undo_io_backing_manager(*io_ptr); if (retval) goto err; *io_ptr = undo_io_manager; retval = set_undo_io_backup_file(ctx->undo_file); if (retval) goto err; printf(_("Overwriting existing filesystem; this can be undone " "using the command:\n" " e2undo %s %s\n\n"), ctx->undo_file, ctx->filesystem_name); return retval; } /* * Configuration via a conf file would be * nice */ tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); if (!tdb_dir) { profile_get_string(ctx->profile, "defaults", "undo_dir", 0, "/var/lib/e2fsprogs", &tdb_dir); free_tdb_dir = 1; } if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || access(tdb_dir, W_OK)) { if (free_tdb_dir) free(tdb_dir); return 0; } tmp_name = strdup(ctx->filesystem_name); if (!tmp_name) goto errout; dev_name = basename(tmp_name); tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1); if (!tdb_file) { free(tmp_name); goto errout; } sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name); free(tmp_name); if ((unlink(tdb_file) < 0) && (errno != ENOENT)) { retval = errno; com_err(ctx->program_name, retval, _("while trying to delete %s"), tdb_file); goto errout; } retval = set_undo_io_backing_manager(*io_ptr); if (retval) goto errout; *io_ptr = undo_io_manager; retval = set_undo_io_backup_file(tdb_file); if (retval) goto errout; printf(_("Overwriting existing filesystem; this can be undone " "using the command:\n" " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name); if (free_tdb_dir) free(tdb_dir); free(tdb_file); return 0; errout: if (free_tdb_dir) free(tdb_dir); free(tdb_file); err: com_err(ctx->program_name, retval, "%s", _("while trying to setup undo file\n")); return retval; } int main (int argc, char *argv[]) { errcode_t retval = 0, retval2 = 0, orig_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; blk64_t orig_superblock = ~(blk64_t)0; struct problem_context pctx; int flags, run_result, was_changed; int journal_size; int sysval, sys_page_size = 4096; int old_bitmaps; __u32 features[3]; char *cp; enum quota_type qtype; struct ext2fs_journal_params jparams; clear_problem_context(&pctx); sigcatcher_setup(); #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); set_com_err_gettext(gettext); #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, "%s", _("Error: ext2fs library version out of date!\n")); show_version_only++; } retval = PRS(argc, argv, &ctx); if (retval) { com_err("e2fsck", retval, "%s", _("while trying to initialize program")); exit(FSCK_ERROR); } reserve_stdio_fds(); set_up_logging(ctx); if (ctx->logf) { int i; fputs("E2fsck run: ", ctx->logf); for (i = 0; i < argc; i++) { if (i) fputc(' ', ctx->logf); fputs(argv[i], ctx->logf); } fputc('\n', ctx->logf); } if (ctx->problem_logf) { int i; fputs("\n", ctx->problem_logf); fprintf(ctx->problem_logf, "\n", (unsigned long) ctx->now); fprintf(ctx->problem_logf, "problem_logf, " arg%d=\"%s\"", i, argv[i]); fputs("/>\n", ctx->problem_logf); } init_resource_track(&ctx->global_rtrack, NULL); if (!(ctx->options & E2F_OPT_PREEN) || show_version_only) log_err(ctx, "e2fsck %s (%s)\n", my_ver_string, my_ver_date); if (show_version_only) { log_err(ctx, _("\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 (!ctx->interactive) fatal_error(ctx, _("need terminal for interactive repairs")); } ctx->superblock = ctx->use_superblock; flags = EXT2_FLAG_SKIP_MMP | EXT2_FLAG_THREADS; restart: #ifdef CONFIG_TESTIO_DEBUG if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { io_ptr = test_io_manager; test_io_backing_manager = unix_io_manager; } else #endif io_ptr = unix_io_manager; flags |= EXT2_FLAG_NOFREE_ON_ERROR; profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0, &old_bitmaps); if (!old_bitmaps) flags |= EXT2_FLAG_64BITS; if ((ctx->options & E2F_OPT_READONLY) == 0) { flags |= EXT2_FLAG_RW; if (!(ctx->mount_flags & EXT2_MF_ISROOT && ctx->mount_flags & EXT2_MF_READONLY)) flags |= EXT2_FLAG_EXCLUSIVE; if ((ctx->mount_flags & EXT2_MF_READONLY) && (ctx->options & E2F_OPT_FORCE)) flags &= ~EXT2_FLAG_EXCLUSIVE; } if (ctx->undo_file) { retval = e2fsck_setup_tdb(ctx, &io_ptr); if (retval) exit(FSCK_ERROR); } ctx->openfs_flags = flags; retval = try_open_fs(ctx, flags, io_ptr, &fs); if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) && !(ctx->flags & E2F_FLAG_SB_SPECIFIED) && ((retval == EXT2_ET_BAD_MAGIC) || (retval == EXT2_ET_SB_CSUM_INVALID) || (retval == EXT2_ET_CORRUPT_SUPERBLOCK) || ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) { if (retval) { pctx.errcode = retval; fix_problem(ctx, PR_0_OPEN_FAILED, &pctx); } if (retval2) { pctx.errcode = retval2; fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx); } pctx.errcode = 0; if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) { retval = retval2; goto failure; } if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) { ext2fs_free(fs); fs = NULL; } if (!fs || (fs->group_desc_count > 1)) { log_out(ctx, _("%s: %s trying backup blocks...\n"), ctx->program_name, retval ? _("Superblock invalid,") : _("Group descriptors look bad...")); orig_superblock = ctx->superblock; get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr); if (fs) ext2fs_close_free(&fs); orig_retval = retval; retval = try_open_fs(ctx, flags, io_ptr, &fs); if ((orig_retval == 0) && retval != 0) { if (fs) ext2fs_close_free(&fs); log_out(ctx, _("%s: %s while using the " "backup blocks"), ctx->program_name, error_message(retval)); log_out(ctx, _("%s: going back to original " "superblock\n"), ctx->program_name); ctx->superblock = orig_superblock; retval = try_open_fs(ctx, flags, io_ptr, &fs); } } } if (((retval == EXT2_ET_UNSUPP_FEATURE) || (retval == EXT2_ET_RO_UNSUPP_FEATURE)) && fs && fs->super) { sb = fs->super; features[0] = (sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP); features[1] = (sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP); features[2] = (sb->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP); if (features[0] || features[1] || features[2]) goto print_unsupp_features; } failure: if (retval) { if (orig_retval) retval = orig_retval; com_err(ctx->program_name, retval, _("while trying to open %s"), ctx->filesystem_name); if (retval == EXT2_ET_REV_TOO_HIGH) { log_out(ctx, "%s", _("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) log_out(ctx, "%s", _("Could this be a zero-length partition?\n")); else if ((retval == EPERM) || (retval == EACCES)) log_out(ctx, _("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) log_out(ctx, "%s", _("Possibly non-existent or swap device?\n")); else if (retval == EBUSY) log_out(ctx, "%s", _("Filesystem mounted or opened " "exclusively by another program?\n")); else if (retval == ENOENT) log_out(ctx, "%s", _("Possibly non-existent device?\n")); #ifdef EROFS else if (retval == EROFS) log_out(ctx, "%s", _("Disk write-protected; use the " "-n option to do a read-only\n" "check of the device.\n")); #endif else { /* * Let's try once more will less consistency checking * so that we are able to recover from more errors * (e.g. some tool messing up some value in the sb). */ if (((retval == EXT2_ET_CORRUPT_SUPERBLOCK) || (retval == EXT2_ET_BAD_DESC_SIZE)) && !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) { if (fs) ext2fs_close_free(&fs); log_out(ctx, _("%s: Trying to load superblock " "despite errors...\n"), ctx->program_name); flags |= EXT2_FLAG_IGNORE_SB_ERRORS; /* * If we tried backup sb, revert to the * original one now. */ if (orig_superblock != ~(blk64_t)0) ctx->superblock = orig_superblock; goto restart; } fix_problem(ctx, PR_0_SB_CORRUPT, &pctx); if (retval == EXT2_ET_BAD_MAGIC) check_plausibility(ctx->filesystem_name, CHECK_FS_EXIST, NULL); } fatal_error(ctx, 0); } /* * 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). With newer versions of the * library this flag is set by ext2fs_open2(), but we set this * here just to be sure. (No, we don't support e2fsck running * with some other libext2fs than the one that it was shipped * with, but just in case....) */ fs->flags |= EXT2_FLAG_MASTER_SB_ONLY; if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) { __u32 blocksize = EXT2_BLOCK_SIZE(fs->super); int need_restart = 0; pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name, blocksize, &ctx->num_blocks); /* * The floppy driver refuses to allow anyone else to * open the device if has been opened with O_EXCL; * this is unlike other block device drivers in Linux. * To handle this, we close the filesystem and then * reopen the filesystem after we get the device size. */ if (pctx.errcode == EBUSY) { ext2fs_close_free(&fs); need_restart++; pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name, blocksize, &ctx->num_blocks); } if (pctx.errcode == EXT2_ET_UNIMPLEMENTED) ctx->num_blocks = 0; else if (pctx.errcode) { fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx); ctx->flags |= E2F_FLAG_ABORT; fatal_error(ctx, 0); } ctx->flags |= E2F_FLAG_GOT_DEVSIZE; if (need_restart) goto restart; } ctx->fs = fs; fs->now = ctx->now; 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]) ctx->device_name = string_copy(ctx, (char *) sb->s_volume_name, sizeof(sb->s_volume_name)); if (ctx->device_name == 0) ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0); for (cp = ctx->device_name; *cp; cp++) if (isspace(*cp) || *cp == ':') *cp = '_'; if (ctx->problem_logf) { fprintf(ctx->problem_logf, "filesystem_name); if (!uuid_is_null(sb->s_uuid)) { char buf[48]; uuid_unparse(sb->s_uuid, buf); fprintf(ctx->problem_logf, " uuid=\"%s\"", buf); } if (sb->s_volume_name[0]) fprintf(ctx->problem_logf, " label=\"%.*s\"", EXT2_LEN_STR(sb->s_volume_name)); fputs("/>\n", ctx->problem_logf); } ehandler_init(fs->io); if (ext2fs_has_feature_mmp(fs->super) && (flags & EXT2_FLAG_SKIP_MMP)) { if (e2fsck_check_mmp(fs, ctx)) fatal_error(ctx, 0); /* * Restart in order to reopen fs but this time start mmp. */ ext2fs_close_free(&ctx->fs); flags &= ~EXT2_FLAG_SKIP_MMP; goto restart; } if (ctx->logf) fprintf(ctx->logf, "Filesystem UUID: %s\n", e2p_uuid2str(sb->s_uuid)); /* * Make sure the ext3 superblock fields are consistent. */ if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) { retval = e2fsck_check_ext3_journal(ctx); if (retval) { com_err(ctx->program_name, retval, _("while checking journal for %s"), ctx->device_name); fatal_error(ctx, _("Cannot proceed with file system check")); } } /* * Check to see if we need to do ext3-style recovery. If so, * do it, and then restart the fsck. */ if (ext2fs_has_feature_journal_needs_recovery(sb)) { if (ctx->options & E2F_OPT_READONLY) { log_out(ctx, "%s", _("Warning: skipping journal recovery because " "doing a read-only filesystem check.\n")); io_channel_flush(ctx->fs->io); } else { if (ctx->flags & E2F_FLAG_RESTARTED) { /* * Whoops, we attempted to run the * journal twice. This should never * happen, unless the hardware or * device driver is being bogus. */ com_err(ctx->program_name, 0, _("unable to set superblock flags " "on %s\n"), ctx->device_name); fatal_error(ctx, 0); } retval = e2fsck_run_ext3_journal(ctx); if (retval == EFSBADCRC) { log_out(ctx, _("Journal checksum error " "found in %s\n"), ctx->device_name); } else if (retval == EFSCORRUPTED) { log_out(ctx, _("Journal corrupted in %s\n"), ctx->device_name); } else if (retval) { com_err(ctx->program_name, retval, _("while recovering journal of %s"), ctx->device_name); } ext2fs_close_free(&ctx->fs); ctx->flags |= E2F_FLAG_RESTARTED; goto restart; } } /* * Check for compatibility with the feature sets. We need to * be more stringent than ext2fs_open(). */ features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP; features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP; features[2] = (sb->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP); print_unsupp_features: if (features[0] || features[1] || features[2]) { int i, j; __u32 *mask = features, m; log_err(ctx, _("%s has unsupported feature(s):"), ctx->filesystem_name); for (i=0; i <3; i++,mask++) { for (j=0,m=1; j < 32; j++, m<<=1) { if (*mask & m) log_err(ctx, " %s", e2p_feature2string(i, m)); } } log_err(ctx, "\n"); goto get_newer; } if (ext2fs_has_feature_casefold(sb) && !fs->encoding) { log_err(ctx, _("%s has unsupported encoding: %0x\n"), ctx->filesystem_name, sb->s_encoding); goto get_newer; } /* * 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); /* * Calculate the number of filesystem blocks per pagesize. If * fs->blocksize > page_size, set the number of blocks per * pagesize to 1 to avoid division by zero errors. */ #ifdef _SC_PAGESIZE sysval = sysconf(_SC_PAGESIZE); if (sysval > 0) sys_page_size = sysval; #endif /* _SC_PAGESIZE */ ctx->blocks_per_page = sys_page_size / fs->blocksize; if (ctx->blocks_per_page == 0) ctx->blocks_per_page = 1; if (ctx->superblock) set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0); ext2fs_mark_valid(fs); check_super_block(ctx); if (ctx->flags & E2F_FLAG_SIGNAL_MASK) fatal_error(ctx, 0); check_if_skip(ctx); check_resize_inode(ctx); if (bad_blocks_file) read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks); else if (cflag) read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */ if (ctx->flags & E2F_FLAG_SIGNAL_MASK) fatal_error(ctx, 0); /* * Mark the system as valid, 'til proven otherwise */ ext2fs_mark_valid(fs); retval = ext2fs_read_bb_inode(fs, &fs->badblocks); if (retval) { log_out(ctx, _("%s: %s while reading bad blocks inode\n"), ctx->program_name, error_message(retval)); preenhalt(ctx); log_out(ctx, "%s", _("This doesn't bode well, " "but we'll try to go on...\n")); } /* * Save the journal size in megabytes. * Try and use the journal size from the backup else let e2fsck * find the default journal size. If fast commit feature is enabled, * it is not clear how many of the journal blocks were fast commit * blocks. So, ignore the size of journal found in backup. * * TODO: Add a new backup type that captures fast commit info as * well. */ if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS && !ext2fs_has_feature_fast_commit(sb)) journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) | (sb->s_jnl_blocks[16] >> 20); else journal_size = -1; if (ext2fs_has_feature_quota(sb)) { /* Quotas were enabled. Do quota accounting during fsck. */ clear_problem_context(&pctx); pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0); if (pctx.errcode) { fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx); fatal_error(ctx, 0); } } run_result = e2fsck_run(ctx); e2fsck_clear_progbar(ctx); if (!ctx->invalid_bitmaps && (ctx->flags & E2F_FLAG_JOURNAL_INODE)) { if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) { if (journal_size < 1024) { ext2fs_get_journal_params(&jparams, fs); } else { jparams.num_journal_blocks = journal_size; jparams.num_fc_blocks = 0; } log_out(ctx, _("Creating journal (%d blocks): "), jparams.num_journal_blocks); fflush(stdout); retval = ext2fs_add_journal_inode3(fs, &jparams, ~0ULL, 0); if (retval) { log_out(ctx, "%s: while trying to create " "journal\n", error_message(retval)); goto no_journal; } log_out(ctx, "%s", _(" Done.\n")); log_out(ctx, "%s", _("\n*** journal has been regenerated ***\n")); } } no_journal: if (run_result & E2F_FLAG_ABORT) { fatal_error(ctx, _("aborted")); } else if (run_result & E2F_FLAG_CANCEL) { log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ? ctx->device_name : ctx->filesystem_name); exit_value |= FSCK_CANCELED; goto cleanup; } if (ext2fs_has_feature_orphan_file(fs->super)) { int ret; /* No point in orphan file without a journal... */ if (!ext2fs_has_feature_journal(fs->super) && fix_problem(ctx, PR_6_ORPHAN_FILE_WITHOUT_JOURNAL, &pctx)) { retval = ext2fs_truncate_orphan_file(fs); if (retval) { /* Huh, failed to delete file */ fix_problem(ctx, PR_6_ORPHAN_FILE_TRUNC_FAILED, &pctx); goto check_quotas; } ext2fs_clear_feature_orphan_file(fs->super); ext2fs_mark_super_dirty(fs); goto check_quotas; } ret = check_init_orphan_file(ctx); if (ret == 2 || (ret == 0 && ext2fs_has_feature_orphan_present(fs->super) && fix_problem(ctx, PR_6_ORPHAN_PRESENT_CLEAN_FILE, &pctx))) { ext2fs_clear_feature_orphan_present(fs->super); ext2fs_mark_super_dirty(fs); } else if (ret == 1 && fix_problem(ctx, PR_6_ORPHAN_FILE_CORRUPTED, &pctx)) { int orphan_file_blocks; if (ctx->invalid_bitmaps) { fix_problem(ctx, PR_6_ORPHAN_FILE_BITMAP_INVALID, &pctx); goto check_quotas; } retval = ext2fs_truncate_orphan_file(fs); if (retval) { /* Huh, failed to truncate file */ fix_problem(ctx, PR_6_ORPHAN_FILE_TRUNC_FAILED, &pctx); goto check_quotas; } orphan_file_blocks = ext2fs_default_orphan_file_blocks(fs); log_out(ctx, _("Creating orphan file (%d blocks): "), orphan_file_blocks); fflush(stdout); retval = ext2fs_create_orphan_file(fs, orphan_file_blocks); if (retval) { log_out(ctx, "%s: while trying to create " "orphan file\n", error_message(retval)); fix_problem(ctx, PR_6_ORPHAN_FILE_CREATE_FAILED, &pctx); goto check_quotas; } log_out(ctx, "%s", _(" Done.\n")); } } else if (ext2fs_has_feature_orphan_present(fs->super) && fix_problem(ctx, PR_6_ORPHAN_PRESENT_NO_FILE, &pctx)) { ext2fs_clear_feature_orphan_present(fs->super); ext2fs_mark_super_dirty(fs); } check_quotas: if (ctx->qctx && !ctx->invalid_bitmaps) { int needs_writeout; for (qtype = 0; qtype < MAXQUOTAS; qtype++) { if (*quota_sb_inump(sb, qtype) == 0) continue; needs_writeout = 0; pctx.num = qtype; retval = quota_compare_and_update(ctx->qctx, qtype, &needs_writeout); if ((retval || needs_writeout) && fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) { pctx.errcode = quota_write_inode(ctx->qctx, 1 << qtype); if (pctx.errcode) (void) fix_problem(ctx, PR_6_WRITE_QUOTAS, &pctx); } } quota_release_context(&ctx->qctx); } if (run_result == E2F_FLAG_RESTART) { log_out(ctx, "%s", _("Restarting e2fsck from the beginning...\n")); retval = e2fsck_reset_context(ctx); if (retval) { com_err(ctx->program_name, retval, "%s", _("while resetting context")); fatal_error(ctx, 0); } ext2fs_close_free(&ctx->fs); goto restart; } cleanup: #ifdef MTRACE mtrace_print("Cleanup"); #endif was_changed = ext2fs_test_changed(fs); if (!(ctx->flags & E2F_FLAG_RUN_RETURN) && !(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; if (check_backup_super_block(ctx)) fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; } else sb->s_state &= ~EXT2_VALID_FS; if (!(ctx->flags & E2F_FLAG_TIME_INSANE)) sb->s_lastcheck = ctx->now; sb->s_mnt_count = 0; memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN); pctx.errcode = ext2fs_set_gdt_csum(ctx->fs); if (pctx.errcode) fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx); ext2fs_mark_super_dirty(fs); } if (ext2fs_has_feature_shared_blocks(ctx->fs->super) && (ctx->options & E2F_OPT_UNSHARE_BLOCKS) && (ctx->options & E2F_OPT_NO)) /* Don't try to write or flush I/O, we just wanted to know whether or * not there were enough free blocks to undo deduplication. */ goto skip_write; if (!(ctx->options & E2F_OPT_READONLY)) { e2fsck_write_bitmaps(ctx); if (fs->flags & EXT2_FLAG_DIRTY) { pctx.errcode = ext2fs_flush(ctx->fs); if (pctx.errcode) fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx); } pctx.errcode = io_channel_flush(ctx->fs->io); if (pctx.errcode) fix_problem(ctx, PR_6_IO_FLUSH, &pctx); } if (was_changed) { int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED); if (fs_fixed) exit_value |= FSCK_NONDESTRUCT; if (!(ctx->options & E2F_OPT_PREEN)) { #if 0 /* Do this later; it breaks too many tests' golden outputs */ log_out(ctx, fs_fixed ? _("\n%s: ***** FILE SYSTEM ERRORS " "CORRECTED *****\n") : _("%s: File system was modified.\n"), ctx->device_name); #else log_out(ctx, _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"), ctx->device_name); #endif } if (ctx->mount_flags & EXT2_MF_ISROOT) { log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"), ctx->device_name); exit_value |= FSCK_REBOOT; } } skip_write: if (!ext2fs_test_valid(fs) || ((exit_value & FSCK_CANCELED) && (sb->s_state & EXT2_ERROR_FS))) { log_out(ctx, _("\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) { int allow_cancellation; profile_get_boolean(ctx->profile, "options", "allow_cancellation", 0, 0, &allow_cancellation); exit_value &= ~FSCK_NONDESTRUCT; if (allow_cancellation && ext2fs_test_valid(fs) && (sb->s_state & EXT2_VALID_FS) && !(sb->s_state & EXT2_ERROR_FS)) exit_value = 0; } else show_stats(ctx); print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io); ext2fs_close_free(&ctx->fs); free(ctx->journal_name); if (ctx->logf) fprintf(ctx->logf, "Exit status: %d\n", exit_value); e2fsck_free_context(ctx); remove_error_table(&et_ext2_error_table); remove_error_table(&et_prof_error_table); return exit_value; }