2 * unix.c - The unix-specific code for e2fsck
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
36 #ifdef HAVE_SYS_IOCTL_H
37 #include <sys/ioctl.h>
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
51 #include "et/com_err.h"
53 #include "uuid/uuid.h"
54 #include "support/plausible.h"
58 #include "../version.h"
60 /* Command line options */
61 static int cflag; /* check disk */
62 static int show_version_only;
65 static int replace_bad_blocks;
66 static int keep_bad_blocks;
67 static char *bad_blocks_file;
69 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
71 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
72 int journal_enable_debug = -1;
75 static void usage(e2fsck_t ctx)
77 char *program_name = "e2fsck";
79 if (ctx && ctx->program_name)
80 program_name = ctx>program_name;
82 _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n"
83 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
84 "\t\t[-E extended-options] [-z undo_file] device\n"),
87 fprintf(stderr, "%s", _("\nEmergency help:\n"
88 " -p Automatic repair (no questions)\n"
89 " -n Make no changes to the filesystem\n"
90 " -y Assume \"yes\" to all questions\n"
91 " -c Check for bad blocks and add them to the badblock list\n"
92 " -f Force checking even if filesystem is marked clean\n"));
93 fprintf(stderr, "%s", _(""
95 " -b superblock Use alternative superblock\n"
96 " -B blocksize Force blocksize when looking for superblock\n"
97 " -j external_journal Set location of the external journal\n"
98 " -l bad_blocks_file Add to badblocks list\n"
99 " -L bad_blocks_file Set badblocks list\n"
100 " -z undo_file Create an undo file\n"
106 static void show_stats(e2fsck_t ctx)
108 ext2_filsys fs = ctx->fs;
109 ext2_ino_t inodes, inodes_used;
110 blk64_t blocks, blocks_used;
111 unsigned int dir_links;
112 unsigned int num_files, num_links;
114 int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0;
115 int i, j, printed = 0;
117 dir_links = 2 * ctx->fs_directory_count - 1;
118 num_files = ctx->fs_total_count - dir_links;
119 num_links = ctx->fs_links_count - dir_links;
120 inodes = fs->super->s_inodes_count;
121 inodes_used = (fs->super->s_inodes_count -
122 fs->super->s_free_inodes_count);
123 blocks = ext2fs_blocks_count(fs->super);
124 blocks_used = (ext2fs_blocks_count(fs->super) -
125 ext2fs_free_blocks_count(fs->super));
127 if (inodes_used > 0) {
128 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
129 frag_percent_file = (frag_percent_file + 5) / 10;
131 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
132 frag_percent_dir = (frag_percent_dir + 5) / 10;
134 frag_percent_total = ((10000 * (ctx->fs_fragmented +
135 ctx->fs_fragmented_dir))
137 frag_percent_total = (frag_percent_total + 5) / 10;
141 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
142 "%llu/%llu blocks\n"),
143 ctx->device_name, inodes_used, inodes,
144 frag_percent_total / 10, frag_percent_total % 10,
145 (unsigned long long) blocks_used,
146 (unsigned long long) blocks);
149 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
152 log_out(ctx, "\nFilesystem features:");
153 mask = &ctx->fs->super->s_feature_compat;
154 for (i = 0; i < 3; i++, mask++) {
155 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
158 e2p_feature2string(i, m));
164 log_out(ctx, " (none)");
168 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
169 "\n%12u inodes used (%2.2f%%, out of %u)\n",
170 inodes_used), inodes_used,
171 100.0 * inodes_used / inodes, inodes);
172 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
173 "%12u non-contiguous files (%0d.%d%%)\n",
175 ctx->fs_fragmented, frag_percent_file / 10,
176 frag_percent_file % 10);
177 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
178 "%12u non-contiguous directories (%0d.%d%%)\n",
179 ctx->fs_fragmented_dir),
180 ctx->fs_fragmented_dir, frag_percent_dir / 10,
181 frag_percent_dir % 10);
182 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
184 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
186 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
187 if (ctx->extent_depth_count[j])
190 log_out(ctx, "%s", _(" Extent depth histogram: "));
191 for (i=0; i < j; i++) {
194 log_out(ctx, "%u", ctx->extent_depth_count[i]);
199 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
200 "%12llu blocks used (%2.2f%%, out of %llu)\n",
202 (unsigned long long) blocks_used, 100.0 * blocks_used / blocks,
203 (unsigned long long) blocks);
204 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
205 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
206 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
207 ctx->large_files), ctx->large_files);
208 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
209 ctx->fs_regular_count), ctx->fs_regular_count);
210 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
211 ctx->fs_directory_count), ctx->fs_directory_count);
212 log_out(ctx, P_("%12u character device file\n",
213 "%12u character device files\n", ctx->fs_chardev_count),
214 ctx->fs_chardev_count);
215 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
216 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
217 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
219 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
220 ctx->fs_links_count - dir_links);
221 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
222 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
223 log_out(ctx, P_(" (%u fast symbolic link)\n",
224 " (%u fast symbolic links)\n",
225 ctx->fs_fast_symlinks_count),
226 ctx->fs_fast_symlinks_count);
227 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
228 ctx->fs_sockets_count),
229 ctx->fs_sockets_count);
230 log_out(ctx, "------------\n");
231 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
235 static void check_mount(e2fsck_t ctx)
240 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
243 com_err("ext2fs_check_if_mount", retval,
244 _("while determining whether %s is mounted."),
245 ctx->filesystem_name);
250 * If the filesystem isn't mounted, or it's the root
251 * filesystem and it's mounted read-only, and we're not doing
252 * a read/write check, then everything's fine.
254 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
255 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
256 (ctx->mount_flags & EXT2_MF_READONLY) &&
257 !(ctx->options & E2F_OPT_WRITECHECK)))
260 if (((ctx->options & E2F_OPT_READONLY) ||
261 ((ctx->options & E2F_OPT_FORCE) &&
262 (ctx->mount_flags & EXT2_MF_READONLY))) &&
263 !(ctx->options & E2F_OPT_WRITECHECK)) {
264 if (ctx->mount_flags & EXT2_MF_MOUNTED)
265 log_out(ctx, _("Warning! %s is mounted.\n"),
266 ctx->filesystem_name);
268 log_out(ctx, _("Warning! %s is in use.\n"),
269 ctx->filesystem_name);
273 if (ctx->mount_flags & EXT2_MF_MOUNTED)
274 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
276 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
277 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
278 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
279 puts("\007\007\007\007");
280 log_out(ctx, "%s", _("\n\nWARNING!!! "
281 "The filesystem is mounted. "
282 "If you continue you ***WILL***\n"
283 "cause ***SEVERE*** filesystem damage.\n\n"));
284 puts("\007\007\007");
285 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
287 printf("%s", _("check aborted.\n"));
293 static int is_on_batt(void)
297 char tmp[80], tmp2[80], fname[NAME_MAX+30];
301 f = fopen("/sys/class/power_supply/AC/online", "r");
303 if (fscanf(f, "%u\n", &acflag) == 1) {
309 f = fopen("/proc/apm", "r");
311 if (fscanf(f, "%79s %79s %79s %x", tmp, tmp, tmp, &acflag) != 4)
314 return (acflag != 1);
316 d = opendir("/proc/acpi/ac_adapter");
318 while ((de=readdir(d)) != NULL) {
319 if (!strncmp(".", de->d_name, 1))
321 snprintf(fname, sizeof(fname),
322 "/proc/acpi/ac_adapter/%s/state",
324 f = fopen(fname, "r");
327 if (fscanf(f, "%79s %79s", tmp2, tmp) != 2)
330 if (strncmp(tmp, "off-line", 8) == 0) {
341 * This routine checks to see if a filesystem can be skipped; if so,
342 * it will exit with E2FSCK_OK. Under some conditions it will print a
343 * message explaining why a check is being forced.
345 static void check_if_skip(e2fsck_t ctx)
347 ext2_filsys fs = ctx->fs;
348 struct problem_context pctx;
349 const char *reason = NULL;
350 unsigned int reason_arg = 0;
352 int batt = is_on_batt();
353 int defer_check_on_battery;
354 int broken_system_clock;
357 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
360 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
361 0, 0, &broken_system_clock);
362 if (ctx->flags & E2F_FLAG_TIME_INSANE)
363 broken_system_clock = 1;
364 profile_get_boolean(ctx->profile, "options",
365 "defer_check_on_battery", 0, 1,
366 &defer_check_on_battery);
367 if (!defer_check_on_battery)
370 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
373 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
376 lastcheck = fs->super->s_lastcheck;
377 if (lastcheck > ctx->now)
378 lastcheck -= ctx->time_fudge;
379 if ((fs->super->s_state & EXT2_ERROR_FS) ||
380 !ext2fs_test_valid(fs))
381 reason = _(" contains a file system with errors");
382 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
383 reason = _(" was not cleanly unmounted");
384 else if (check_backup_super_block(ctx))
385 reason = _(" primary superblock features different from backup");
386 else if ((fs->super->s_max_mnt_count > 0) &&
387 (fs->super->s_mnt_count >=
388 (unsigned) fs->super->s_max_mnt_count)) {
389 reason = _(" has been mounted %u times without being checked");
390 reason_arg = fs->super->s_mnt_count;
391 if (batt && (fs->super->s_mnt_count <
392 (unsigned) fs->super->s_max_mnt_count*2))
394 } else if (!broken_system_clock && fs->super->s_checkinterval &&
395 (ctx->now < lastcheck)) {
396 reason = _(" has filesystem last checked time in the future");
399 } else if (!broken_system_clock && fs->super->s_checkinterval &&
400 ((ctx->now - lastcheck) >=
401 ((time_t) fs->super->s_checkinterval))) {
402 reason = _(" has gone %u days without being checked");
403 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
404 if (batt && ((ctx->now - fs->super->s_lastcheck) <
405 fs->super->s_checkinterval*2))
407 } else if (broken_system_clock && fs->super->s_checkinterval) {
408 log_out(ctx, "%s: ", ctx->device_name);
410 _("ignoring check interval, broken_system_clock set\n"));
414 log_out(ctx, "%s", ctx->device_name);
415 log_out(ctx, reason, reason_arg);
416 log_out(ctx, "%s", _(", check forced.\n"));
421 * Update the global counts from the block group counts. This
422 * is needed since modern kernels don't update the global
423 * counts so as to avoid locking the entire file system. So
424 * if the filesystem is not unmounted cleanly, the global
425 * counts may not be accurate. Update them here if we can,
426 * for the benefit of users who might examine the file system
427 * using dumpe2fs. (This is for cosmetic reasons only.)
429 clear_problem_context(&pctx);
430 pctx.ino = fs->super->s_free_inodes_count;
431 pctx.ino2 = ctx->free_inodes;
432 if ((pctx.ino != pctx.ino2) &&
433 !(ctx->options & E2F_OPT_READONLY) &&
434 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
435 fs->super->s_free_inodes_count = ctx->free_inodes;
436 ext2fs_mark_super_dirty(fs);
438 clear_problem_context(&pctx);
439 pctx.blk = ext2fs_free_blocks_count(fs->super);
440 pctx.blk2 = ctx->free_blocks;
441 if ((pctx.blk != pctx.blk2) &&
442 !(ctx->options & E2F_OPT_READONLY) &&
443 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
444 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
445 ext2fs_mark_super_dirty(fs);
448 /* Print the summary message when we're skipping a full check */
449 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
451 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
452 fs->super->s_inodes_count,
453 (unsigned long long) ext2fs_blocks_count(fs->super) -
454 ext2fs_free_blocks_count(fs->super),
455 (unsigned long long) ext2fs_blocks_count(fs->super));
457 if (fs->super->s_max_mnt_count > 0) {
458 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
462 if (!broken_system_clock && fs->super->s_checkinterval &&
463 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
465 if (next_check <= 5) {
466 if (next_check == 1) {
469 _(" (check deferred; on battery)"));
472 _(" (check after next mount)"));
474 log_out(ctx, _(" (check in %ld mounts)"),
479 ext2fs_close_free(&ctx->fs);
480 e2fsck_free_context(ctx);
485 * For completion notice
491 static struct percent_tbl e2fsck_tbl = {
492 5, { 0, 70, 90, 92, 95, 100 }
494 static char bar[128], spaces[128];
496 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
503 if (pass > tbl->max_pass || max == 0)
505 percent = ((float) curr) / ((float) max);
506 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
507 + tbl->table[pass-1]);
510 void e2fsck_clear_progbar(e2fsck_t ctx)
512 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
515 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
518 ctx->flags &= ~E2F_FLAG_PROG_BAR;
521 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
524 static const char spinner[] = "\\|/-";
531 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
535 * Calculate the new progress position. If the
536 * percentage hasn't changed, then we skip out right
539 fixed_percent = (int) ((10 * percent) + 0.5);
540 if (ctx->progress_last_percent == fixed_percent)
542 ctx->progress_last_percent = fixed_percent;
545 * If we've already updated the spinner once within
546 * the last 1/8th of a second, no point doing it
549 gettimeofday(&tv, NULL);
550 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
551 if ((tick == ctx->progress_last_time) &&
552 (fixed_percent != 0) && (fixed_percent != 1000))
554 ctx->progress_last_time = tick;
557 * Advance the spinner, and note that the progress bar
558 * will be on the screen
560 ctx->progress_pos = (ctx->progress_pos+1) & 3;
561 ctx->flags |= E2F_FLAG_PROG_BAR;
563 dpywidth = 66 - strlen(label);
564 dpywidth = 8 * (dpywidth / 8);
568 i = ((percent * dpywidth) + 50) / 100;
569 printf("%s%s: |%s%s", ctx->start_meta, label,
570 bar + (sizeof(bar) - (i+1)),
571 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
572 if (fixed_percent == 1000)
575 fputc(spinner[ctx->progress_pos & 3], stdout);
576 printf(" %4.1f%% ", percent);
578 printf("%u\r", dpynum);
580 fputs(" \r", stdout);
581 fputs(ctx->stop_meta, stdout);
583 if (fixed_percent == 1000)
584 e2fsck_clear_progbar(ctx);
590 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
591 unsigned long cur, unsigned long max)
599 if (ctx->progress_fd) {
600 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
601 pass, cur, max, ctx->device_name);
602 write_all(ctx->progress_fd, buf, strlen(buf));
604 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
605 e2fsck_simple_progress(ctx, ctx->device_name,
611 #define PATH_SET "PATH=/sbin"
614 * Make sure 0,1,2 file descriptors are open, so that we don't open
615 * the filesystem using the same file descriptor as stdout or stderr.
617 static void reserve_stdio_fds(void)
622 fd = open("/dev/null", O_RDWR);
624 fprintf(stderr, _("ERROR: Couldn't open "
634 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
636 e2fsck_t ctx = e2fsck_global_ctx;
641 ctx->progress = e2fsck_update_progress;
644 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
646 e2fsck_t ctx = e2fsck_global_ctx;
651 e2fsck_clear_progbar(ctx);
655 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
657 e2fsck_t ctx = e2fsck_global_ctx;
662 ctx->flags |= E2F_FLAG_CANCEL;
666 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
668 char *buf, *token, *next, *p, *arg;
670 int extended_usage = 0;
671 unsigned long long reada_kb;
673 buf = string_copy(ctx, opts, 0);
674 for (token = buf; token && *token; token = next) {
675 p = strchr(token, ',');
681 arg = strchr(token, '=');
686 if (strcmp(token, "ea_ver") == 0) {
691 ea_ver = strtoul(arg, &p, 0);
693 ((ea_ver != 1) && (ea_ver != 2))) {
694 fprintf(stderr, "%s",
695 _("Invalid EA version.\n"));
699 ctx->ext_attr_ver = ea_ver;
700 } else if (strcmp(token, "readahead_kb") == 0) {
705 reada_kb = strtoull(arg, &p, 0);
707 fprintf(stderr, "%s",
708 _("Invalid readahead buffer size.\n"));
712 ctx->readahead_kb = reada_kb;
713 } else if (strcmp(token, "fragcheck") == 0) {
714 ctx->options |= E2F_OPT_FRAGCHECK;
716 } else if (strcmp(token, "journal_only") == 0) {
721 ctx->options |= E2F_OPT_JOURNAL_ONLY;
722 } else if (strcmp(token, "discard") == 0) {
723 ctx->options |= E2F_OPT_DISCARD;
725 } else if (strcmp(token, "nodiscard") == 0) {
726 ctx->options &= ~E2F_OPT_DISCARD;
728 } else if (strcmp(token, "optimize_extents") == 0) {
729 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
731 } else if (strcmp(token, "no_optimize_extents") == 0) {
732 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
734 } else if (strcmp(token, "inode_count_fullmap") == 0) {
735 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
737 } else if (strcmp(token, "no_inode_count_fullmap") == 0) {
738 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
740 } else if (strcmp(token, "log_filename") == 0) {
744 ctx->log_fn = string_copy(ctx, arg, 0);
746 } else if (strcmp(token, "problem_log") == 0) {
750 ctx->problem_log_fn = string_copy(ctx, arg, 0);
752 } else if (strcmp(token, "bmap2extent") == 0) {
753 ctx->options |= E2F_OPT_CONVERT_BMAP;
755 } else if (strcmp(token, "fixes_only") == 0) {
756 ctx->options |= E2F_OPT_FIXES_ONLY;
758 } else if (strcmp(token, "unshare_blocks") == 0) {
759 ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
760 ctx->options |= E2F_OPT_FORCE;
762 } else if (strcmp(token, "check_encoding") == 0) {
763 ctx->options |= E2F_OPT_CHECK_ENCODING;
765 #ifdef CONFIG_DEVELOPER_FEATURES
766 } else if (strcmp(token, "clear_all_uninit_bits") == 0) {
767 ctx->options |= E2F_OPT_CLEAR_UNINIT;
771 fprintf(stderr, _("Unknown extended option: %s\n"),
778 if (extended_usage) {
779 fputs(_("\nExtended options are separated by commas, "
780 "and may take an argument which\n"
781 "is set off by an equals ('=') sign. "
782 "Valid extended options are:\n\n"), stderr);
783 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
784 fputs("\tfragcheck\n", stderr);
785 fputs("\tjournal_only\n", stderr);
786 fputs("\tdiscard\n", stderr);
787 fputs("\tnodiscard\n", stderr);
788 fputs("\toptimize_extents\n", stderr);
789 fputs("\tno_optimize_extents\n", stderr);
790 fputs("\tinode_count_fullmap\n", stderr);
791 fputs("\tno_inode_count_fullmap\n", stderr);
792 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
793 fputs("\tbmap2extent\n", stderr);
794 fputs("\tunshare_blocks\n", stderr);
795 fputs("\tfixes_only\n", stderr);
796 fputs("\tcheck_encoding\n", stderr);
802 static void syntax_err_report(const char *filename, long err, int line_num)
805 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
806 filename, line_num, error_message(err));
810 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
812 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
817 extern void *mallwatch;
824 char *extended_opts = 0;
826 int res; /* result of sscanf */
827 #ifdef CONFIG_JBD_DEBUG
830 unsigned long long phys_mem_kb, blk;
832 retval = e2fsck_allocate_context(&ctx);
837 e2fsck_global_ctx = ctx;
839 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
840 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
841 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
842 ctx->interactive = 1;
844 ctx->start_meta[0] = '\001';
845 ctx->stop_meta[0] = '\002';
847 memset(bar, '=', sizeof(bar)-1);
848 memset(spaces, ' ', sizeof(spaces)-1);
849 add_error_table(&et_ext2_error_table);
850 add_error_table(&et_prof_error_table);
851 blkid_get_cache(&ctx->blkid, NULL);
854 ctx->program_name = *argv;
858 phys_mem_kb = get_memory_size() / 1024;
859 ctx->readahead_kb = ~0ULL;
860 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
863 ctx->progress = e2fsck_update_progress;
864 res = sscanf(optarg, "%d", &ctx->progress_fd);
868 if (ctx->progress_fd < 0) {
870 ctx->progress_fd = ctx->progress_fd * -1;
872 if (!ctx->progress_fd)
874 /* Validate the file descriptor to avoid disasters */
875 fd = dup(ctx->progress_fd);
878 _("Error validating file descriptor %d: %s\n"),
880 error_message(errno));
882 _("Invalid completion information file descriptor"));
887 ctx->options |= E2F_OPT_COMPRESS_DIRS;
890 extended_opts = optarg;
894 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
897 _("Only one of the options -p/-a, -n or -y may be specified."));
899 ctx->options |= E2F_OPT_PREEN;
902 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
904 ctx->options |= E2F_OPT_NO;
907 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
909 ctx->options |= E2F_OPT_YES;
912 #ifdef RESOURCE_TRACK
913 if (ctx->options & E2F_OPT_TIME)
914 ctx->options |= E2F_OPT_TIME2;
916 ctx->options |= E2F_OPT_TIME;
918 fprintf(stderr, _("The -t option is not "
919 "supported on this version of e2fsck.\n"));
924 ctx->options |= E2F_OPT_WRITECHECK;
925 ctx->options |= E2F_OPT_CHECKBLOCKS;
928 /* What we do by default, anyway! */
931 res = sscanf(optarg, "%llu", &blk);
932 ctx->use_superblock = blk;
935 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
938 ctx->blocksize = atoi(optarg);
941 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
946 ctx->journal_name = blkid_get_devname(ctx->blkid,
948 if (!ctx->journal_name) {
949 com_err(ctx->program_name, 0,
950 _("Unable to resolve '%s'"),
956 res = sscanf(optarg, "%d", &ctx->process_inode_size);
961 replace_bad_blocks++;
965 free(bad_blocks_file);
966 bad_blocks_file = string_copy(ctx, optarg, 0);
969 ctx->options |= E2F_OPT_DEBUG;
972 ctx->options |= E2F_OPT_FORCE;
981 show_version_only = 1;
985 mallwatch = (void *) strtol(optarg, NULL, 0);
989 ctx->device_name = string_copy(ctx, optarg, 0);
995 ctx->undo_file = optarg;
1000 if (show_version_only)
1002 if (optind != argc - 1)
1004 if ((ctx->options & E2F_OPT_NO) &&
1005 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
1006 com_err(ctx->program_name, 0, "%s",
1007 _("The -n and -D options are incompatible."));
1008 fatal_error(ctx, 0);
1010 if ((ctx->options & E2F_OPT_NO) && cflag) {
1011 com_err(ctx->program_name, 0, "%s",
1012 _("The -n and -c options are incompatible."));
1013 fatal_error(ctx, 0);
1015 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
1016 com_err(ctx->program_name, 0, "%s",
1017 _("The -n and -l/-L options are incompatible."));
1018 fatal_error(ctx, 0);
1020 if (ctx->options & E2F_OPT_NO)
1021 ctx->options |= E2F_OPT_READONLY;
1023 ctx->io_options = strchr(argv[optind], '?');
1024 if (ctx->io_options)
1025 *ctx->io_options++ = 0;
1026 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
1027 if (!ctx->filesystem_name) {
1028 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
1030 fatal_error(ctx, 0);
1033 parse_extended_opts(ctx, extended_opts);
1035 /* Complain about mutually exclusive rebuilding activities */
1036 if (getenv("E2FSCK_FIXES_ONLY"))
1037 ctx->options |= E2F_OPT_FIXES_ONLY;
1038 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1039 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1040 com_err(ctx->program_name, 0, "%s",
1041 _("The -D and -E fixes_only options are incompatible."));
1042 fatal_error(ctx, 0);
1044 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1045 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1046 com_err(ctx->program_name, 0, "%s",
1047 _("The -E bmap2extent and fixes_only options are incompatible."));
1048 fatal_error(ctx, 0);
1051 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1053 profile_set_syntax_err_cb(syntax_err_report);
1054 profile_init(config_fn, &ctx->profile);
1056 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1059 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1060 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1065 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1068 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1070 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1073 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1075 if (ctx->readahead_kb == ~0ULL) {
1076 profile_get_integer(ctx->profile, "options",
1077 "readahead_mem_pct", 0, -1, &c);
1078 if (c >= 0 && c <= 100)
1079 ctx->readahead_kb = phys_mem_kb * c / 100;
1080 profile_get_integer(ctx->profile, "options",
1081 "readahead_kb", 0, -1, &c);
1083 ctx->readahead_kb = c;
1084 if (ctx->readahead_kb != ~0ULL &&
1085 ctx->readahead_kb > phys_mem_kb)
1086 ctx->readahead_kb = phys_mem_kb;
1089 /* Turn off discard in read-only mode */
1090 if ((ctx->options & E2F_OPT_NO) &&
1091 (ctx->options & E2F_OPT_DISCARD))
1092 ctx->options &= ~E2F_OPT_DISCARD;
1095 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1097 com_err("open", errno,
1098 _("while opening %s for flushing"),
1099 ctx->filesystem_name);
1100 fatal_error(ctx, 0);
1102 if ((retval = ext2fs_sync_device(fd, 1))) {
1103 com_err("ext2fs_sync_device", retval,
1104 _("while trying to flush %s"),
1105 ctx->filesystem_name);
1106 fatal_error(ctx, 0);
1110 if (cflag && bad_blocks_file) {
1111 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1112 "be both used at the same time.\n"));
1115 #ifdef HAVE_SIGNAL_H
1117 * Set up signal action
1119 memset(&sa, 0, sizeof(struct sigaction));
1120 sa.sa_handler = signal_cancel;
1121 sigaction(SIGINT, &sa, 0);
1122 sigaction(SIGTERM, &sa, 0);
1124 sa.sa_flags = SA_RESTART;
1126 sa.sa_handler = signal_progress_on;
1127 sigaction(SIGUSR1, &sa, 0);
1128 sa.sa_handler = signal_progress_off;
1129 sigaction(SIGUSR2, &sa, 0);
1132 /* Update our PATH to include /sbin if we need to run badblocks */
1134 char *oldpath = getenv("PATH");
1136 int len = sizeof(PATH_SET) + 1;
1139 len += strlen(oldpath);
1141 newpath = malloc(len);
1143 fatal_error(ctx, "Couldn't malloc() newpath");
1144 strcpy(newpath, PATH_SET);
1147 strcat(newpath, ":");
1148 strcat(newpath, oldpath);
1152 #ifdef CONFIG_JBD_DEBUG
1153 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1155 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1158 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1167 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1172 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1173 ext2_filsys *ret_fs)
1179 if (ctx->superblock) {
1180 unsigned long blocksize = ctx->blocksize;
1183 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1184 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1186 retval = ext2fs_open2(ctx->filesystem_name,
1187 ctx->io_options, flags,
1188 ctx->superblock, blocksize,
1189 unix_io_manager, ret_fs);
1191 ext2fs_free(*ret_fs);
1201 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1202 flags, ctx->superblock, blocksize,
1205 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1206 flags, 0, 0, io_ptr, ret_fs);
1209 (*ret_fs)->priv_data = ctx;
1210 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1216 static const char *my_ver_string = E2FSPROGS_VERSION;
1217 static const char *my_ver_date = E2FSPROGS_DATE;
1219 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1221 struct mmp_struct *mmp_s;
1222 unsigned int mmp_check_interval;
1223 errcode_t retval = 0;
1224 struct problem_context pctx;
1225 unsigned int wait_time = 0;
1227 clear_problem_context(&pctx);
1228 if (fs->mmp_buf == NULL) {
1229 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1234 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1238 mmp_s = fs->mmp_buf;
1240 mmp_check_interval = fs->super->s_mmp_update_interval;
1241 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1242 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1245 * If check_interval in MMP block is larger, use that instead of
1246 * check_interval from the superblock.
1248 if (mmp_s->mmp_check_interval > mmp_check_interval)
1249 mmp_check_interval = mmp_s->mmp_check_interval;
1251 wait_time = mmp_check_interval * 2 + 1;
1253 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1255 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1256 retval = EXT2_ET_MMP_FSCK_ON;
1257 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1258 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1263 /* Print warning if e2fsck will wait for more than 20 secs. */
1264 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1265 log_out(ctx, _("MMP interval is %u seconds and total wait "
1266 "time is %u seconds. Please wait...\n"),
1267 mmp_check_interval, wait_time * 2);
1274 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1275 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1276 fs->super->s_mmp_block = 0;
1277 ext2fs_mark_super_dirty(fs);
1280 } else if (retval == EXT2_ET_MMP_FAILED) {
1281 com_err(ctx->program_name, retval, "%s",
1282 _("while checking MMP block"));
1283 dump_mmp_msg(fs->mmp_buf, NULL);
1284 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1285 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1286 com_err(ctx->program_name, retval, "%s",
1287 _("while checking MMP block"));
1288 dump_mmp_msg(fs->mmp_buf,
1289 _("If you are sure the filesystem is not "
1290 "in use on any node, run:\n"
1291 "'tune2fs -f -E clear_mmp %s'\n"),
1293 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1294 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1295 ext2fs_mmp_clear(fs);
1298 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1299 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1300 ext2fs_mmp_clear(fs);
1304 com_err(ctx->program_name, retval, "%s",
1305 _("while reading MMP block"));
1309 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1311 errcode_t retval = ENOMEM;
1312 char *tdb_dir = NULL, *tdb_file = NULL;
1313 char *dev_name, *tmp_name;
1314 int free_tdb_dir = 0;
1316 /* (re)open a specific undo file */
1317 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1318 retval = set_undo_io_backing_manager(*io_ptr);
1321 *io_ptr = undo_io_manager;
1322 retval = set_undo_io_backup_file(ctx->undo_file);
1325 printf(_("Overwriting existing filesystem; this can be undone "
1326 "using the command:\n"
1327 " e2undo %s %s\n\n"),
1328 ctx->undo_file, ctx->filesystem_name);
1333 * Configuration via a conf file would be
1336 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1338 profile_get_string(ctx->profile, "defaults",
1339 "undo_dir", 0, "/var/lib/e2fsprogs",
1344 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1345 access(tdb_dir, W_OK)) {
1351 tmp_name = strdup(ctx->filesystem_name);
1354 dev_name = basename(tmp_name);
1355 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1360 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1363 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1365 com_err(ctx->program_name, retval,
1366 _("while trying to delete %s"), tdb_file);
1370 retval = set_undo_io_backing_manager(*io_ptr);
1373 *io_ptr = undo_io_manager;
1374 retval = set_undo_io_backup_file(tdb_file);
1377 printf(_("Overwriting existing filesystem; this can be undone "
1378 "using the command:\n"
1379 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1391 com_err(ctx->program_name, retval, "%s",
1392 _("while trying to setup undo file\n"));
1396 int main (int argc, char *argv[])
1398 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1399 int exit_value = FSCK_OK;
1402 struct ext2_super_block *sb;
1403 const char *lib_ver_date;
1404 int my_ver, lib_ver;
1406 blk64_t orig_superblock = ~(blk64_t)0;
1407 struct problem_context pctx;
1408 int flags, run_result, was_changed;
1410 int sysval, sys_page_size = 4096;
1414 enum quota_type qtype;
1415 struct ext2fs_journal_params jparams;
1417 clear_problem_context(&pctx);
1426 setlocale(LC_MESSAGES, "");
1427 setlocale(LC_CTYPE, "");
1428 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1429 textdomain(NLS_CAT_NAME);
1430 set_com_err_gettext(gettext);
1432 my_ver = ext2fs_parse_version_string(my_ver_string);
1433 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1434 if (my_ver > lib_ver) {
1435 fprintf( stderr, "%s",
1436 _("Error: ext2fs library version out of date!\n"));
1437 show_version_only++;
1440 retval = PRS(argc, argv, &ctx);
1442 com_err("e2fsck", retval, "%s",
1443 _("while trying to initialize program"));
1446 reserve_stdio_fds();
1448 set_up_logging(ctx);
1452 fputs("E2fsck run: ", ctx->logf);
1453 for (i = 0; i < argc; i++) {
1455 fputc(' ', ctx->logf);
1456 fputs(argv[i], ctx->logf);
1458 fputc('\n', ctx->logf);
1460 if (ctx->problem_logf) {
1463 fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n",
1465 fprintf(ctx->problem_logf, "<problem_log time=\"%lu\">\n",
1466 (unsigned long) ctx->now);
1467 fprintf(ctx->problem_logf, "<invocation prog=\"%s\"",
1469 for (i = 1; i < argc; i++)
1470 fprintf(ctx->problem_logf, " arg%d=\"%s\"", i, argv[i]);
1471 fputs("/>\n", ctx->problem_logf);
1474 init_resource_track(&ctx->global_rtrack, NULL);
1475 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1476 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1479 if (show_version_only) {
1480 log_err(ctx, _("\tUsing %s, %s\n"),
1481 error_message(EXT2_ET_BASE), lib_ver_date);
1487 if (!(ctx->options & E2F_OPT_PREEN) &&
1488 !(ctx->options & E2F_OPT_NO) &&
1489 !(ctx->options & E2F_OPT_YES)) {
1490 if (!ctx->interactive)
1492 _("need terminal for interactive repairs"));
1494 ctx->superblock = ctx->use_superblock;
1496 flags = EXT2_FLAG_SKIP_MMP | EXT2_FLAG_THREADS;
1498 #ifdef CONFIG_TESTIO_DEBUG
1499 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1500 io_ptr = test_io_manager;
1501 test_io_backing_manager = unix_io_manager;
1504 io_ptr = unix_io_manager;
1505 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1506 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1509 flags |= EXT2_FLAG_64BITS;
1510 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1511 flags |= EXT2_FLAG_RW;
1512 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1513 ctx->mount_flags & EXT2_MF_READONLY))
1514 flags |= EXT2_FLAG_EXCLUSIVE;
1515 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1516 (ctx->options & E2F_OPT_FORCE))
1517 flags &= ~EXT2_FLAG_EXCLUSIVE;
1520 if (ctx->undo_file) {
1521 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1526 ctx->openfs_flags = flags;
1527 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1529 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1530 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1531 ((retval == EXT2_ET_BAD_MAGIC) ||
1532 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1533 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1534 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1536 pctx.errcode = retval;
1537 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1540 pctx.errcode = retval2;
1541 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1544 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1548 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1552 if (!fs || (fs->group_desc_count > 1)) {
1553 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1555 retval ? _("Superblock invalid,") :
1556 _("Group descriptors look bad..."));
1557 orig_superblock = ctx->superblock;
1558 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1560 ext2fs_close_free(&fs);
1561 orig_retval = retval;
1562 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1563 if ((orig_retval == 0) && retval != 0) {
1565 ext2fs_close_free(&fs);
1566 log_out(ctx, _("%s: %s while using the "
1569 error_message(retval));
1570 log_out(ctx, _("%s: going back to original "
1573 ctx->superblock = orig_superblock;
1574 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1578 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1579 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1582 features[0] = (sb->s_feature_compat &
1583 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1584 features[1] = (sb->s_feature_incompat &
1585 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1586 features[2] = (sb->s_feature_ro_compat &
1587 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1588 if (features[0] || features[1] || features[2])
1589 goto print_unsupp_features;
1594 retval = orig_retval;
1595 com_err(ctx->program_name, retval, _("while trying to open %s"),
1596 ctx->filesystem_name);
1597 if (retval == EXT2_ET_REV_TOO_HIGH) {
1599 _("The filesystem revision is apparently "
1600 "too high for this version of e2fsck.\n"
1601 "(Or the filesystem superblock "
1602 "is corrupt)\n\n"));
1603 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1604 } else if (retval == EXT2_ET_SHORT_READ)
1606 _("Could this be a zero-length partition?\n"));
1607 else if ((retval == EPERM) || (retval == EACCES))
1608 log_out(ctx, _("You must have %s access to the "
1609 "filesystem or be root\n"),
1610 (ctx->options & E2F_OPT_READONLY) ?
1612 else if (retval == ENXIO)
1614 _("Possibly non-existent or swap device?\n"));
1615 else if (retval == EBUSY)
1616 log_out(ctx, "%s", _("Filesystem mounted or opened "
1617 "exclusively by another program?\n"));
1618 else if (retval == ENOENT)
1620 _("Possibly non-existent device?\n"));
1622 else if (retval == EROFS)
1623 log_out(ctx, "%s", _("Disk write-protected; use the "
1624 "-n option to do a read-only\n"
1625 "check of the device.\n"));
1629 * Let's try once more will less consistency checking
1630 * so that we are able to recover from more errors
1631 * (e.g. some tool messing up some value in the sb).
1633 if (((retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1634 (retval == EXT2_ET_BAD_DESC_SIZE)) &&
1635 !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) {
1637 ext2fs_close_free(&fs);
1638 log_out(ctx, _("%s: Trying to load superblock "
1639 "despite errors...\n"),
1641 flags |= EXT2_FLAG_IGNORE_SB_ERRORS;
1643 * If we tried backup sb, revert to the
1646 if (orig_superblock != ~(blk64_t)0)
1647 ctx->superblock = orig_superblock;
1650 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1651 if (retval == EXT2_ET_BAD_MAGIC)
1652 check_plausibility(ctx->filesystem_name,
1653 CHECK_FS_EXIST, NULL);
1655 fatal_error(ctx, 0);
1658 * We only update the master superblock because (a) paranoia;
1659 * we don't want to corrupt the backup superblocks, and (b) we
1660 * don't need to update the mount count and last checked
1661 * fields in the backup superblock (the kernel doesn't update
1662 * the backup superblocks anyway). With newer versions of the
1663 * library this flag is set by ext2fs_open2(), but we set this
1664 * here just to be sure. (No, we don't support e2fsck running
1665 * with some other libext2fs than the one that it was shipped
1666 * with, but just in case....)
1668 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1670 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1671 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1672 int need_restart = 0;
1674 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1678 * The floppy driver refuses to allow anyone else to
1679 * open the device if has been opened with O_EXCL;
1680 * this is unlike other block device drivers in Linux.
1681 * To handle this, we close the filesystem and then
1682 * reopen the filesystem after we get the device size.
1684 if (pctx.errcode == EBUSY) {
1685 ext2fs_close_free(&fs);
1688 ext2fs_get_device_size2(ctx->filesystem_name,
1692 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1693 ctx->num_blocks = 0;
1694 else if (pctx.errcode) {
1695 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1696 ctx->flags |= E2F_FLAG_ABORT;
1697 fatal_error(ctx, 0);
1699 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1708 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1709 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1710 _("while trying to open %s"),
1711 ctx->filesystem_name);
1713 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1717 * Set the device name, which is used whenever we print error
1718 * or informational messages to the user.
1720 if (ctx->device_name == 0 && sb->s_volume_name[0])
1721 ctx->device_name = string_copy(ctx, (char *) sb->s_volume_name,
1722 sizeof(sb->s_volume_name));
1724 if (ctx->device_name == 0)
1725 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1726 for (cp = ctx->device_name; *cp; cp++)
1727 if (isspace(*cp) || *cp == ':')
1730 if (ctx->problem_logf) {
1732 fprintf(ctx->problem_logf, "<filesystem dev=\"%s\"",
1733 ctx->filesystem_name);
1734 if (!uuid_is_null(sb->s_uuid)) {
1737 uuid_unparse(sb->s_uuid, buf);
1738 fprintf(ctx->problem_logf, " uuid=\"%s\"", buf);
1740 if (sb->s_volume_name[0])
1741 fprintf(ctx->problem_logf, " label=\"%.*s\"",
1742 EXT2_LEN_STR(sb->s_volume_name));
1744 fputs("/>\n", ctx->problem_logf);
1747 ehandler_init(fs->io);
1749 if (ext2fs_has_feature_mmp(fs->super) &&
1750 (flags & EXT2_FLAG_SKIP_MMP)) {
1751 if (e2fsck_check_mmp(fs, ctx))
1752 fatal_error(ctx, 0);
1755 * Restart in order to reopen fs but this time start mmp.
1757 ext2fs_close_free(&ctx->fs);
1758 flags &= ~EXT2_FLAG_SKIP_MMP;
1763 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1764 e2p_uuid2str(sb->s_uuid));
1767 * Make sure the ext3 superblock fields are consistent.
1769 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1770 retval = e2fsck_check_ext3_journal(ctx);
1772 com_err(ctx->program_name, retval,
1773 _("while checking journal for %s"),
1776 _("Cannot proceed with file system check"));
1781 * Check to see if we need to do ext3-style recovery. If so,
1782 * do it, and then restart the fsck.
1784 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1785 if (ctx->options & E2F_OPT_READONLY) {
1787 _("Warning: skipping journal recovery because "
1788 "doing a read-only filesystem check.\n"));
1789 io_channel_flush(ctx->fs->io);
1791 if (ctx->flags & E2F_FLAG_RESTARTED) {
1793 * Whoops, we attempted to run the
1794 * journal twice. This should never
1795 * happen, unless the hardware or
1796 * device driver is being bogus.
1798 com_err(ctx->program_name, 0,
1799 _("unable to set superblock flags "
1800 "on %s\n"), ctx->device_name);
1801 fatal_error(ctx, 0);
1803 retval = e2fsck_run_ext3_journal(ctx);
1804 if (retval == EFSBADCRC) {
1805 log_out(ctx, _("Journal checksum error "
1808 } else if (retval == EFSCORRUPTED) {
1809 log_out(ctx, _("Journal corrupted in %s\n"),
1811 } else if (retval) {
1812 com_err(ctx->program_name, retval,
1813 _("while recovering journal of %s"),
1816 ext2fs_close_free(&ctx->fs);
1817 ctx->flags |= E2F_FLAG_RESTARTED;
1823 * Check for compatibility with the feature sets. We need to
1824 * be more stringent than ext2fs_open().
1826 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1827 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1828 features[2] = (sb->s_feature_ro_compat &
1829 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1830 print_unsupp_features:
1831 if (features[0] || features[1] || features[2]) {
1833 __u32 *mask = features, m;
1835 log_err(ctx, _("%s has unsupported feature(s):"),
1836 ctx->filesystem_name);
1838 for (i=0; i <3; i++,mask++) {
1839 for (j=0,m=1; j < 32; j++, m<<=1) {
1842 e2p_feature2string(i, m));
1849 if (ext2fs_has_feature_casefold(sb) && !fs->encoding) {
1850 log_err(ctx, _("%s has unsupported encoding: %0x\n"),
1851 ctx->filesystem_name, sb->s_encoding);
1856 * If the user specified a specific superblock, presumably the
1857 * master superblock has been trashed. So we mark the
1858 * superblock as dirty, so it can be written out.
1860 if (ctx->superblock &&
1861 !(ctx->options & E2F_OPT_READONLY))
1862 ext2fs_mark_super_dirty(fs);
1865 * Calculate the number of filesystem blocks per pagesize. If
1866 * fs->blocksize > page_size, set the number of blocks per
1867 * pagesize to 1 to avoid division by zero errors.
1870 sysval = sysconf(_SC_PAGESIZE);
1872 sys_page_size = sysval;
1873 #endif /* _SC_PAGESIZE */
1874 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1875 if (ctx->blocks_per_page == 0)
1876 ctx->blocks_per_page = 1;
1878 if (ctx->superblock)
1879 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1880 ext2fs_mark_valid(fs);
1881 check_super_block(ctx);
1882 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1883 fatal_error(ctx, 0);
1885 check_resize_inode(ctx);
1886 if (bad_blocks_file)
1887 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1889 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1890 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1891 fatal_error(ctx, 0);
1894 * Mark the system as valid, 'til proven otherwise
1896 ext2fs_mark_valid(fs);
1898 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1900 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1901 ctx->program_name, error_message(retval));
1903 log_out(ctx, "%s", _("This doesn't bode well, "
1904 "but we'll try to go on...\n"));
1908 * Save the journal size in megabytes.
1909 * Try and use the journal size from the backup else let e2fsck
1910 * find the default journal size. If fast commit feature is enabled,
1911 * it is not clear how many of the journal blocks were fast commit
1912 * blocks. So, ignore the size of journal found in backup.
1914 * TODO: Add a new backup type that captures fast commit info as
1917 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS &&
1918 !ext2fs_has_feature_fast_commit(sb))
1919 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1920 (sb->s_jnl_blocks[16] >> 20);
1924 if (ext2fs_has_feature_quota(sb)) {
1925 /* Quotas were enabled. Do quota accounting during fsck. */
1926 clear_problem_context(&pctx);
1927 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1929 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1930 fatal_error(ctx, 0);
1934 run_result = e2fsck_run(ctx);
1935 e2fsck_clear_progbar(ctx);
1937 if (!ctx->invalid_bitmaps &&
1938 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1939 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1940 if (journal_size < 1024) {
1941 ext2fs_get_journal_params(&jparams, fs);
1943 jparams.num_journal_blocks = journal_size;
1944 jparams.num_fc_blocks = 0;
1946 log_out(ctx, _("Creating journal (%d blocks): "),
1947 jparams.num_journal_blocks);
1949 retval = ext2fs_add_journal_inode3(fs, &jparams, ~0ULL, 0);
1951 log_out(ctx, "%s: while trying to create "
1952 "journal\n", error_message(retval));
1955 log_out(ctx, "%s", _(" Done.\n"));
1957 _("\n*** journal has been regenerated ***\n"));
1962 if (run_result & E2F_FLAG_ABORT) {
1963 fatal_error(ctx, _("aborted"));
1964 } else if (run_result & E2F_FLAG_CANCEL) {
1965 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1966 ctx->device_name : ctx->filesystem_name);
1967 exit_value |= FSCK_CANCELED;
1968 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1971 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1972 if (*quota_sb_inump(sb, qtype) == 0)
1976 retval = quota_compare_and_update(ctx->qctx, qtype,
1978 if ((retval || needs_writeout) &&
1979 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1980 pctx.errcode = quota_write_inode(ctx->qctx,
1983 (void) fix_problem(ctx,
1984 PR_6_WRITE_QUOTAS, &pctx);
1987 quota_release_context(&ctx->qctx);
1990 if (run_result == E2F_FLAG_RESTART) {
1992 _("Restarting e2fsck from the beginning...\n"));
1993 retval = e2fsck_reset_context(ctx);
1995 com_err(ctx->program_name, retval, "%s",
1996 _("while resetting context"));
1997 fatal_error(ctx, 0);
1999 ext2fs_close_free(&ctx->fs);
2004 mtrace_print("Cleanup");
2006 was_changed = ext2fs_test_changed(fs);
2007 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
2008 !(ctx->options & E2F_OPT_READONLY)) {
2009 if (ext2fs_test_valid(fs)) {
2010 if (!(sb->s_state & EXT2_VALID_FS))
2011 exit_value |= FSCK_NONDESTRUCT;
2012 sb->s_state = EXT2_VALID_FS;
2013 if (check_backup_super_block(ctx))
2014 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2016 sb->s_state &= ~EXT2_VALID_FS;
2017 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
2018 sb->s_lastcheck = ctx->now;
2019 sb->s_mnt_count = 0;
2020 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
2021 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
2023 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
2024 ext2fs_mark_super_dirty(fs);
2027 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
2028 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) &&
2029 (ctx->options & E2F_OPT_NO))
2030 /* Don't try to write or flush I/O, we just wanted to know whether or
2031 * not there were enough free blocks to undo deduplication.
2035 if (!(ctx->options & E2F_OPT_READONLY)) {
2036 e2fsck_write_bitmaps(ctx);
2037 if (fs->flags & EXT2_FLAG_DIRTY) {
2038 pctx.errcode = ext2fs_flush(ctx->fs);
2040 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
2042 pctx.errcode = io_channel_flush(ctx->fs->io);
2044 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
2048 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
2051 exit_value |= FSCK_NONDESTRUCT;
2052 if (!(ctx->options & E2F_OPT_PREEN)) {
2053 #if 0 /* Do this later; it breaks too many tests' golden outputs */
2054 log_out(ctx, fs_fixed ?
2055 _("\n%s: ***** FILE SYSTEM ERRORS "
2056 "CORRECTED *****\n") :
2057 _("%s: File system was modified.\n"),
2061 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
2065 if (ctx->mount_flags & EXT2_MF_ISROOT) {
2066 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
2068 exit_value |= FSCK_REBOOT;
2073 if (!ext2fs_test_valid(fs) ||
2074 ((exit_value & FSCK_CANCELED) &&
2075 (sb->s_state & EXT2_ERROR_FS))) {
2076 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
2077 "errors **********\n\n"), ctx->device_name);
2078 exit_value |= FSCK_UNCORRECTED;
2079 exit_value &= ~FSCK_NONDESTRUCT;
2081 if (exit_value & FSCK_CANCELED) {
2082 int allow_cancellation;
2084 profile_get_boolean(ctx->profile, "options",
2085 "allow_cancellation", 0, 0,
2086 &allow_cancellation);
2087 exit_value &= ~FSCK_NONDESTRUCT;
2088 if (allow_cancellation && ext2fs_test_valid(fs) &&
2089 (sb->s_state & EXT2_VALID_FS) &&
2090 !(sb->s_state & EXT2_ERROR_FS))
2095 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
2097 ext2fs_close_free(&ctx->fs);
2098 free(ctx->journal_name);
2101 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
2102 e2fsck_free_context(ctx);
2103 remove_error_table(&et_ext2_error_table);
2104 remove_error_table(&et_prof_error_table);