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
)
78 _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n"
79 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
80 "\t\t[-E extended-options] [-z undo_file] device\n"),
83 fprintf(stderr
, "%s", _("\nEmergency help:\n"
84 " -p Automatic repair (no questions)\n"
85 " -n Make no changes to the filesystem\n"
86 " -y Assume \"yes\" to all questions\n"
87 " -c Check for bad blocks and add them to the badblock list\n"
88 " -f Force checking even if filesystem is marked clean\n"));
89 fprintf(stderr
, "%s", _(""
91 " -b superblock Use alternative superblock\n"
92 " -B blocksize Force blocksize when looking for superblock\n"
93 " -j external_journal Set location of the external journal\n"
94 " -l bad_blocks_file Add to badblocks list\n"
95 " -L bad_blocks_file Set badblocks list\n"
96 " -z undo_file Create an undo file\n"
102 static void show_stats(e2fsck_t ctx
)
104 ext2_filsys fs
= ctx
->fs
;
105 ext2_ino_t inodes
, inodes_used
;
106 blk64_t blocks
, blocks_used
;
107 unsigned int dir_links
;
108 unsigned int num_files
, num_links
;
110 int frag_percent_file
= 0, frag_percent_dir
= 0, frag_percent_total
= 0;
111 int i
, j
, printed
= 0;
113 dir_links
= 2 * ctx
->fs_directory_count
- 1;
114 num_files
= ctx
->fs_total_count
- dir_links
;
115 num_links
= ctx
->fs_links_count
- dir_links
;
116 inodes
= fs
->super
->s_inodes_count
;
117 inodes_used
= (fs
->super
->s_inodes_count
-
118 fs
->super
->s_free_inodes_count
);
119 blocks
= ext2fs_blocks_count(fs
->super
);
120 blocks_used
= (ext2fs_blocks_count(fs
->super
) -
121 ext2fs_free_blocks_count(fs
->super
));
123 if (inodes_used
> 0) {
124 frag_percent_file
= (10000 * ctx
->fs_fragmented
) / inodes_used
;
125 frag_percent_file
= (frag_percent_file
+ 5) / 10;
127 frag_percent_dir
= (10000 * ctx
->fs_fragmented_dir
) / inodes_used
;
128 frag_percent_dir
= (frag_percent_dir
+ 5) / 10;
130 frag_percent_total
= ((10000 * (ctx
->fs_fragmented
+
131 ctx
->fs_fragmented_dir
))
133 frag_percent_total
= (frag_percent_total
+ 5) / 10;
137 log_out(ctx
, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
138 "%llu/%llu blocks\n"),
139 ctx
->device_name
, inodes_used
, inodes
,
140 frag_percent_total
/ 10, frag_percent_total
% 10,
141 (unsigned long long) blocks_used
,
142 (unsigned long long) blocks
);
145 profile_get_boolean(ctx
->profile
, "options", "report_features", 0, 0,
148 log_out(ctx
, "\nFilesystem features:");
149 mask
= &ctx
->fs
->super
->s_feature_compat
;
150 for (i
= 0; i
< 3; i
++, mask
++) {
151 for (j
= 0, m
= 1; j
< 32; j
++, m
<<= 1) {
154 e2p_feature2string(i
, m
));
160 log_out(ctx
, " (none)");
164 log_out(ctx
, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
165 "\n%12u inodes used (%2.2f%%, out of %u)\n",
166 inodes_used
), inodes_used
,
167 100.0 * inodes_used
/ inodes
, inodes
);
168 log_out(ctx
, P_("%12u non-contiguous file (%0d.%d%%)\n",
169 "%12u non-contiguous files (%0d.%d%%)\n",
171 ctx
->fs_fragmented
, frag_percent_file
/ 10,
172 frag_percent_file
% 10);
173 log_out(ctx
, P_("%12u non-contiguous directory (%0d.%d%%)\n",
174 "%12u non-contiguous directories (%0d.%d%%)\n",
175 ctx
->fs_fragmented_dir
),
176 ctx
->fs_fragmented_dir
, frag_percent_dir
/ 10,
177 frag_percent_dir
% 10);
178 log_out(ctx
, _(" # of inodes with ind/dind/tind blocks: "
180 ctx
->fs_ind_count
, ctx
->fs_dind_count
, ctx
->fs_tind_count
);
182 for (j
=MAX_EXTENT_DEPTH_COUNT
-1; j
>=0; j
--)
183 if (ctx
->extent_depth_count
[j
])
186 log_out(ctx
, "%s", _(" Extent depth histogram: "));
187 for (i
=0; i
< j
; i
++) {
190 log_out(ctx
, "%u", ctx
->extent_depth_count
[i
]);
195 log_out(ctx
, P_("%12llu block used (%2.2f%%, out of %llu)\n",
196 "%12llu blocks used (%2.2f%%, out of %llu)\n",
198 (unsigned long long) blocks_used
, 100.0 * blocks_used
/ blocks
,
199 (unsigned long long) blocks
);
200 log_out(ctx
, P_("%12u bad block\n", "%12u bad blocks\n",
201 ctx
->fs_badblocks_count
), ctx
->fs_badblocks_count
);
202 log_out(ctx
, P_("%12u large file\n", "%12u large files\n",
203 ctx
->large_files
), ctx
->large_files
);
204 log_out(ctx
, P_("\n%12u regular file\n", "\n%12u regular files\n",
205 ctx
->fs_regular_count
), ctx
->fs_regular_count
);
206 log_out(ctx
, P_("%12u directory\n", "%12u directories\n",
207 ctx
->fs_directory_count
), ctx
->fs_directory_count
);
208 log_out(ctx
, P_("%12u character device file\n",
209 "%12u character device files\n", ctx
->fs_chardev_count
),
210 ctx
->fs_chardev_count
);
211 log_out(ctx
, P_("%12u block device file\n", "%12u block device files\n",
212 ctx
->fs_blockdev_count
), ctx
->fs_blockdev_count
);
213 log_out(ctx
, P_("%12u fifo\n", "%12u fifos\n", ctx
->fs_fifo_count
),
215 log_out(ctx
, P_("%12u link\n", "%12u links\n", num_links
),
216 ctx
->fs_links_count
- dir_links
);
217 log_out(ctx
, P_("%12u symbolic link", "%12u symbolic links",
218 ctx
->fs_symlinks_count
), ctx
->fs_symlinks_count
);
219 log_out(ctx
, P_(" (%u fast symbolic link)\n",
220 " (%u fast symbolic links)\n",
221 ctx
->fs_fast_symlinks_count
),
222 ctx
->fs_fast_symlinks_count
);
223 log_out(ctx
, P_("%12u socket\n", "%12u sockets\n",
224 ctx
->fs_sockets_count
),
225 ctx
->fs_sockets_count
);
226 log_out(ctx
, "------------\n");
227 log_out(ctx
, P_("%12u file\n", "%12u files\n", num_files
),
231 static void check_mount(e2fsck_t ctx
)
236 retval
= ext2fs_check_if_mounted(ctx
->filesystem_name
,
239 com_err("ext2fs_check_if_mount", retval
,
240 _("while determining whether %s is mounted."),
241 ctx
->filesystem_name
);
246 * If the filesystem isn't mounted, or it's the root
247 * filesystem and it's mounted read-only, and we're not doing
248 * a read/write check, then everything's fine.
250 if ((!(ctx
->mount_flags
& (EXT2_MF_MOUNTED
| EXT2_MF_BUSY
))) ||
251 ((ctx
->mount_flags
& EXT2_MF_ISROOT
) &&
252 (ctx
->mount_flags
& EXT2_MF_READONLY
) &&
253 !(ctx
->options
& E2F_OPT_WRITECHECK
)))
256 if (((ctx
->options
& E2F_OPT_READONLY
) ||
257 ((ctx
->options
& E2F_OPT_FORCE
) &&
258 (ctx
->mount_flags
& EXT2_MF_READONLY
))) &&
259 !(ctx
->options
& E2F_OPT_WRITECHECK
)) {
260 if (ctx
->mount_flags
& EXT2_MF_MOUNTED
)
261 log_out(ctx
, _("Warning! %s is mounted.\n"),
262 ctx
->filesystem_name
);
264 log_out(ctx
, _("Warning! %s is in use.\n"),
265 ctx
->filesystem_name
);
269 if (ctx
->mount_flags
& EXT2_MF_MOUNTED
)
270 log_out(ctx
, _("%s is mounted.\n"), ctx
->filesystem_name
);
272 log_out(ctx
, _("%s is in use.\n"), ctx
->filesystem_name
);
273 if (!ctx
->interactive
|| ctx
->mount_flags
& EXT2_MF_BUSY
)
274 fatal_error(ctx
, _("Cannot continue, aborting.\n\n"));
275 puts("\007\007\007\007");
276 log_out(ctx
, "%s", _("\n\nWARNING!!! "
277 "The filesystem is mounted. "
278 "If you continue you ***WILL***\n"
279 "cause ***SEVERE*** filesystem damage.\n\n"));
280 puts("\007\007\007");
281 cont
= ask_yn(ctx
, _("Do you really want to continue"), 0);
283 printf("%s", _("check aborted.\n"));
289 static int is_on_batt(void)
293 char tmp
[80], tmp2
[80], fname
[NAME_MAX
+30];
297 f
= fopen("/sys/class/power_supply/AC/online", "r");
299 if (fscanf(f
, "%u\n", &acflag
) == 1) {
305 f
= fopen("/proc/apm", "r");
307 if (fscanf(f
, "%79s %79s %79s %x", tmp
, tmp
, tmp
, &acflag
) != 4)
310 return (acflag
!= 1);
312 d
= opendir("/proc/acpi/ac_adapter");
314 while ((de
=readdir(d
)) != NULL
) {
315 if (!strncmp(".", de
->d_name
, 1))
317 snprintf(fname
, sizeof(fname
),
318 "/proc/acpi/ac_adapter/%s/state",
320 f
= fopen(fname
, "r");
323 if (fscanf(f
, "%79s %79s", tmp2
, tmp
) != 2)
326 if (strncmp(tmp
, "off-line", 8) == 0) {
337 * This routine checks to see if a filesystem can be skipped; if so,
338 * it will exit with E2FSCK_OK. Under some conditions it will print a
339 * message explaining why a check is being forced.
341 static void check_if_skip(e2fsck_t ctx
)
343 ext2_filsys fs
= ctx
->fs
;
344 struct problem_context pctx
;
345 const char *reason
= NULL
;
346 unsigned int reason_arg
= 0;
348 int batt
= is_on_batt();
349 int defer_check_on_battery
;
350 int broken_system_clock
;
353 if (ctx
->flags
& E2F_FLAG_PROBLEMS_FIXED
)
356 profile_get_boolean(ctx
->profile
, "options", "broken_system_clock",
357 0, 0, &broken_system_clock
);
358 if (ctx
->flags
& E2F_FLAG_TIME_INSANE
)
359 broken_system_clock
= 1;
360 profile_get_boolean(ctx
->profile
, "options",
361 "defer_check_on_battery", 0, 1,
362 &defer_check_on_battery
);
363 if (!defer_check_on_battery
)
366 if ((ctx
->options
& E2F_OPT_FORCE
) || bad_blocks_file
|| cflag
)
369 if (ctx
->options
& E2F_OPT_JOURNAL_ONLY
)
372 lastcheck
= fs
->super
->s_lastcheck
;
373 if (lastcheck
> ctx
->now
)
374 lastcheck
-= ctx
->time_fudge
;
375 if ((fs
->super
->s_state
& EXT2_ERROR_FS
) ||
376 !ext2fs_test_valid(fs
))
377 reason
= _(" contains a file system with errors");
378 else if ((fs
->super
->s_state
& EXT2_VALID_FS
) == 0)
379 reason
= _(" was not cleanly unmounted");
380 else if (check_backup_super_block(ctx
))
381 reason
= _(" primary superblock features different from backup");
382 else if ((fs
->super
->s_max_mnt_count
> 0) &&
383 (fs
->super
->s_mnt_count
>=
384 (unsigned) fs
->super
->s_max_mnt_count
)) {
385 reason
= _(" has been mounted %u times without being checked");
386 reason_arg
= fs
->super
->s_mnt_count
;
387 if (batt
&& (fs
->super
->s_mnt_count
<
388 (unsigned) fs
->super
->s_max_mnt_count
*2))
390 } else if (!broken_system_clock
&& fs
->super
->s_checkinterval
&&
391 (ctx
->now
< lastcheck
)) {
392 reason
= _(" has filesystem last checked time in the future");
395 } else if (!broken_system_clock
&& fs
->super
->s_checkinterval
&&
396 ((ctx
->now
- lastcheck
) >=
397 ((time_t) fs
->super
->s_checkinterval
))) {
398 reason
= _(" has gone %u days without being checked");
399 reason_arg
= (ctx
->now
- fs
->super
->s_lastcheck
)/(3600*24);
400 if (batt
&& ((ctx
->now
- fs
->super
->s_lastcheck
) <
401 fs
->super
->s_checkinterval
*2))
403 } else if (broken_system_clock
&& fs
->super
->s_checkinterval
) {
404 log_out(ctx
, "%s: ", ctx
->device_name
);
406 _("ignoring check interval, broken_system_clock set\n"));
410 log_out(ctx
, "%s", ctx
->device_name
);
411 log_out(ctx
, reason
, reason_arg
);
412 log_out(ctx
, "%s", _(", check forced.\n"));
417 * Update the global counts from the block group counts. This
418 * is needed since modern kernels don't update the global
419 * counts so as to avoid locking the entire file system. So
420 * if the filesystem is not unmounted cleanly, the global
421 * counts may not be accurate. Update them here if we can,
422 * for the benefit of users who might examine the file system
423 * using dumpe2fs. (This is for cosmetic reasons only.)
425 clear_problem_context(&pctx
);
426 pctx
.ino
= fs
->super
->s_free_inodes_count
;
427 pctx
.ino2
= ctx
->free_inodes
;
428 if ((pctx
.ino
!= pctx
.ino2
) &&
429 !(ctx
->options
& E2F_OPT_READONLY
) &&
430 fix_problem(ctx
, PR_0_FREE_INODE_COUNT
, &pctx
)) {
431 fs
->super
->s_free_inodes_count
= ctx
->free_inodes
;
432 ext2fs_mark_super_dirty(fs
);
434 clear_problem_context(&pctx
);
435 pctx
.blk
= ext2fs_free_blocks_count(fs
->super
);
436 pctx
.blk2
= ctx
->free_blocks
;
437 if ((pctx
.blk
!= pctx
.blk2
) &&
438 !(ctx
->options
& E2F_OPT_READONLY
) &&
439 fix_problem(ctx
, PR_0_FREE_BLOCK_COUNT
, &pctx
)) {
440 ext2fs_free_blocks_count_set(fs
->super
, ctx
->free_blocks
);
441 ext2fs_mark_super_dirty(fs
);
444 /* Print the summary message when we're skipping a full check */
445 log_out(ctx
, _("%s: clean, %u/%u files, %llu/%llu blocks"),
447 fs
->super
->s_inodes_count
- fs
->super
->s_free_inodes_count
,
448 fs
->super
->s_inodes_count
,
449 (unsigned long long) ext2fs_blocks_count(fs
->super
) -
450 ext2fs_free_blocks_count(fs
->super
),
451 (unsigned long long) ext2fs_blocks_count(fs
->super
));
453 if (fs
->super
->s_max_mnt_count
> 0) {
454 next_check
= fs
->super
->s_max_mnt_count
- fs
->super
->s_mnt_count
;
458 if (!broken_system_clock
&& fs
->super
->s_checkinterval
&&
459 ((ctx
->now
- fs
->super
->s_lastcheck
) >= fs
->super
->s_checkinterval
))
461 if (next_check
<= 5) {
462 if (next_check
== 1) {
465 _(" (check deferred; on battery)"));
468 _(" (check after next mount)"));
470 log_out(ctx
, _(" (check in %ld mounts)"),
475 ext2fs_close_free(&ctx
->fs
);
476 e2fsck_free_context(ctx
);
481 * For completion notice
487 static struct percent_tbl e2fsck_tbl
= {
488 5, { 0, 70, 90, 92, 95, 100 }
490 static char bar
[128], spaces
[128];
492 static float calc_percent(struct percent_tbl
*tbl
, int pass
, int curr
,
499 if (pass
> tbl
->max_pass
|| max
== 0)
501 percent
= ((float) curr
) / ((float) max
);
502 return ((percent
* (tbl
->table
[pass
] - tbl
->table
[pass
-1]))
503 + tbl
->table
[pass
-1]);
506 void e2fsck_clear_progbar(e2fsck_t ctx
)
508 if (!(ctx
->flags
& E2F_FLAG_PROG_BAR
))
511 printf("%s%s\r%s", ctx
->start_meta
, spaces
+ (sizeof(spaces
) - 80),
514 ctx
->flags
&= ~E2F_FLAG_PROG_BAR
;
517 int e2fsck_simple_progress(e2fsck_t ctx
, const char *label
, float percent
,
520 static const char spinner
[] = "\\|/-";
527 if (ctx
->flags
& E2F_FLAG_PROG_SUPPRESS
)
531 * Calculate the new progress position. If the
532 * percentage hasn't changed, then we skip out right
535 fixed_percent
= (int) ((10 * percent
) + 0.5);
536 if (ctx
->progress_last_percent
== fixed_percent
)
538 ctx
->progress_last_percent
= fixed_percent
;
541 * If we've already updated the spinner once within
542 * the last 1/8th of a second, no point doing it
545 gettimeofday(&tv
, NULL
);
546 tick
= (tv
.tv_sec
<< 3) + (tv
.tv_usec
/ (1000000 / 8));
547 if ((tick
== ctx
->progress_last_time
) &&
548 (fixed_percent
!= 0) && (fixed_percent
!= 1000))
550 ctx
->progress_last_time
= tick
;
553 * Advance the spinner, and note that the progress bar
554 * will be on the screen
556 ctx
->progress_pos
= (ctx
->progress_pos
+1) & 3;
557 ctx
->flags
|= E2F_FLAG_PROG_BAR
;
559 dpywidth
= 66 - strlen(label
);
560 dpywidth
= 8 * (dpywidth
/ 8);
564 i
= ((percent
* dpywidth
) + 50) / 100;
565 printf("%s%s: |%s%s", ctx
->start_meta
, label
,
566 bar
+ (sizeof(bar
) - (i
+1)),
567 spaces
+ (sizeof(spaces
) - (dpywidth
- i
+ 1)));
568 if (fixed_percent
== 1000)
571 fputc(spinner
[ctx
->progress_pos
& 3], stdout
);
572 printf(" %4.1f%% ", percent
);
574 printf("%u\r", dpynum
);
576 fputs(" \r", stdout
);
577 fputs(ctx
->stop_meta
, stdout
);
579 if (fixed_percent
== 1000)
580 e2fsck_clear_progbar(ctx
);
586 static int e2fsck_update_progress(e2fsck_t ctx
, int pass
,
587 unsigned long cur
, unsigned long max
)
595 if (ctx
->progress_fd
) {
596 snprintf(buf
, sizeof(buf
), "%d %lu %lu %s\n",
597 pass
, cur
, max
, ctx
->device_name
);
598 write_all(ctx
->progress_fd
, buf
, strlen(buf
));
600 percent
= calc_percent(&e2fsck_tbl
, pass
, cur
, max
);
601 e2fsck_simple_progress(ctx
, ctx
->device_name
,
607 #define PATH_SET "PATH=/sbin"
610 * Make sure 0,1,2 file descriptors are open, so that we don't open
611 * the filesystem using the same file descriptor as stdout or stderr.
613 static void reserve_stdio_fds(void)
618 fd
= open("/dev/null", O_RDWR
);
620 fprintf(stderr
, _("ERROR: Couldn't open "
630 static void signal_progress_on(int sig
EXT2FS_ATTR((unused
)))
632 e2fsck_t ctx
= e2fsck_global_ctx
;
637 ctx
->progress
= e2fsck_update_progress
;
640 static void signal_progress_off(int sig
EXT2FS_ATTR((unused
)))
642 e2fsck_t ctx
= e2fsck_global_ctx
;
647 e2fsck_clear_progbar(ctx
);
651 static void signal_cancel(int sig
EXT2FS_ATTR((unused
)))
653 e2fsck_t ctx
= e2fsck_global_ctx
;
658 ctx
->flags
|= E2F_FLAG_CANCEL
;
662 static void parse_extended_opts(e2fsck_t ctx
, const char *opts
)
664 char *buf
, *token
, *next
, *p
, *arg
;
666 int extended_usage
= 0;
667 unsigned long long reada_kb
;
669 buf
= string_copy(ctx
, opts
, 0);
670 for (token
= buf
; token
&& *token
; token
= next
) {
671 p
= strchr(token
, ',');
677 arg
= strchr(token
, '=');
682 if (strcmp(token
, "ea_ver") == 0) {
687 ea_ver
= strtoul(arg
, &p
, 0);
689 ((ea_ver
!= 1) && (ea_ver
!= 2))) {
690 fprintf(stderr
, "%s",
691 _("Invalid EA version.\n"));
695 ctx
->ext_attr_ver
= ea_ver
;
696 } else if (strcmp(token
, "readahead_kb") == 0) {
701 reada_kb
= strtoull(arg
, &p
, 0);
703 fprintf(stderr
, "%s",
704 _("Invalid readahead buffer size.\n"));
708 ctx
->readahead_kb
= reada_kb
;
709 } else if (strcmp(token
, "fragcheck") == 0) {
710 ctx
->options
|= E2F_OPT_FRAGCHECK
;
712 } else if (strcmp(token
, "journal_only") == 0) {
717 ctx
->options
|= E2F_OPT_JOURNAL_ONLY
;
718 } else if (strcmp(token
, "discard") == 0) {
719 ctx
->options
|= E2F_OPT_DISCARD
;
721 } else if (strcmp(token
, "nodiscard") == 0) {
722 ctx
->options
&= ~E2F_OPT_DISCARD
;
724 } else if (strcmp(token
, "optimize_extents") == 0) {
725 ctx
->options
&= ~E2F_OPT_NOOPT_EXTENTS
;
727 } else if (strcmp(token
, "no_optimize_extents") == 0) {
728 ctx
->options
|= E2F_OPT_NOOPT_EXTENTS
;
730 } else if (strcmp(token
, "inode_count_fullmap") == 0) {
731 ctx
->options
|= E2F_OPT_ICOUNT_FULLMAP
;
733 } else if (strcmp(token
, "no_inode_count_fullmap") == 0) {
734 ctx
->options
&= ~E2F_OPT_ICOUNT_FULLMAP
;
736 } else if (strcmp(token
, "log_filename") == 0) {
740 ctx
->log_fn
= string_copy(ctx
, arg
, 0);
742 } else if (strcmp(token
, "problem_log") == 0) {
746 ctx
->problem_log_fn
= string_copy(ctx
, arg
, 0);
748 } else if (strcmp(token
, "bmap2extent") == 0) {
749 ctx
->options
|= E2F_OPT_CONVERT_BMAP
;
751 } else if (strcmp(token
, "fixes_only") == 0) {
752 ctx
->options
|= E2F_OPT_FIXES_ONLY
;
754 } else if (strcmp(token
, "unshare_blocks") == 0) {
755 ctx
->options
|= E2F_OPT_UNSHARE_BLOCKS
;
756 ctx
->options
|= E2F_OPT_FORCE
;
758 } else if (strcmp(token
, "check_encoding") == 0) {
759 ctx
->options
|= E2F_OPT_CHECK_ENCODING
;
761 #ifdef CONFIG_DEVELOPER_FEATURES
762 } else if (strcmp(token
, "clear_all_uninit_bits") == 0) {
763 ctx
->options
|= E2F_OPT_CLEAR_UNINIT
;
767 fprintf(stderr
, _("Unknown extended option: %s\n"),
774 if (extended_usage
) {
775 fputs(_("\nExtended options are separated by commas, "
776 "and may take an argument which\n"
777 "is set off by an equals ('=') sign. "
778 "Valid extended options are:\n\n"), stderr
);
779 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr
);
780 fputs("\tfragcheck\n", stderr
);
781 fputs("\tjournal_only\n", stderr
);
782 fputs("\tdiscard\n", stderr
);
783 fputs("\tnodiscard\n", stderr
);
784 fputs("\toptimize_extents\n", stderr
);
785 fputs("\tno_optimize_extents\n", stderr
);
786 fputs("\tinode_count_fullmap\n", stderr
);
787 fputs("\tno_inode_count_fullmap\n", stderr
);
788 fputs(_("\treadahead_kb=<buffer size>\n"), stderr
);
789 fputs("\tbmap2extent\n", stderr
);
790 fputs("\tunshare_blocks\n", stderr
);
791 fputs("\tfixes_only\n", stderr
);
792 fputs("\tcheck_encoding\n", stderr
);
798 static void syntax_err_report(const char *filename
, long err
, int line_num
)
801 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
802 filename
, line_num
, error_message(err
));
806 static const char *config_fn
[] = { ROOT_SYSCONFDIR
"/e2fsck.conf", 0 };
808 static errcode_t
PRS(int argc
, char *argv
[], e2fsck_t
*ret_ctx
)
813 extern void *mallwatch
;
820 char *extended_opts
= 0;
822 int res
; /* result of sscanf */
823 #ifdef CONFIG_JBD_DEBUG
826 unsigned long long phys_mem_kb
, blk
;
828 retval
= e2fsck_allocate_context(&ctx
);
833 e2fsck_global_ctx
= ctx
;
835 setvbuf(stdout
, NULL
, _IONBF
, BUFSIZ
);
836 setvbuf(stderr
, NULL
, _IONBF
, BUFSIZ
);
837 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
838 ctx
->interactive
= 1;
840 ctx
->start_meta
[0] = '\001';
841 ctx
->stop_meta
[0] = '\002';
843 memset(bar
, '=', sizeof(bar
)-1);
844 memset(spaces
, ' ', sizeof(spaces
)-1);
845 add_error_table(&et_ext2_error_table
);
846 add_error_table(&et_prof_error_table
);
847 blkid_get_cache(&ctx
->blkid
, NULL
);
850 ctx
->program_name
= *argv
;
852 ctx
->program_name
= "e2fsck";
854 phys_mem_kb
= get_memory_size() / 1024;
855 ctx
->readahead_kb
= ~0ULL;
856 while ((c
= getopt(argc
, argv
, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF
)
859 ctx
->progress
= e2fsck_update_progress
;
860 res
= sscanf(optarg
, "%d", &ctx
->progress_fd
);
864 if (ctx
->progress_fd
< 0) {
866 ctx
->progress_fd
= ctx
->progress_fd
* -1;
868 if (!ctx
->progress_fd
)
870 /* Validate the file descriptor to avoid disasters */
871 fd
= dup(ctx
->progress_fd
);
874 _("Error validating file descriptor %d: %s\n"),
876 error_message(errno
));
878 _("Invalid completion information file descriptor"));
883 ctx
->options
|= E2F_OPT_COMPRESS_DIRS
;
886 extended_opts
= optarg
;
890 if (ctx
->options
& (E2F_OPT_YES
|E2F_OPT_NO
)) {
893 _("Only one of the options -p/-a, -n or -y may be specified."));
895 ctx
->options
|= E2F_OPT_PREEN
;
898 if (ctx
->options
& (E2F_OPT_YES
|E2F_OPT_PREEN
))
900 ctx
->options
|= E2F_OPT_NO
;
903 if (ctx
->options
& (E2F_OPT_PREEN
|E2F_OPT_NO
))
905 ctx
->options
|= E2F_OPT_YES
;
908 #ifdef RESOURCE_TRACK
909 if (ctx
->options
& E2F_OPT_TIME
)
910 ctx
->options
|= E2F_OPT_TIME2
;
912 ctx
->options
|= E2F_OPT_TIME
;
914 fprintf(stderr
, _("The -t option is not "
915 "supported on this version of e2fsck.\n"));
920 ctx
->options
|= E2F_OPT_WRITECHECK
;
921 ctx
->options
|= E2F_OPT_CHECKBLOCKS
;
924 /* What we do by default, anyway! */
927 res
= sscanf(optarg
, "%llu", &blk
);
928 ctx
->use_superblock
= blk
;
931 ctx
->flags
|= E2F_FLAG_SB_SPECIFIED
;
934 ctx
->blocksize
= atoi(optarg
);
937 res
= sscanf(optarg
, "%d", &ctx
->inode_buffer_blocks
);
942 ctx
->journal_name
= blkid_get_devname(ctx
->blkid
,
944 if (!ctx
->journal_name
) {
945 com_err(ctx
->program_name
, 0,
946 _("Unable to resolve '%s'"),
952 res
= sscanf(optarg
, "%d", &ctx
->process_inode_size
);
957 replace_bad_blocks
++;
961 free(bad_blocks_file
);
962 bad_blocks_file
= string_copy(ctx
, optarg
, 0);
965 ctx
->options
|= E2F_OPT_DEBUG
;
968 ctx
->options
|= E2F_OPT_FORCE
;
977 show_version_only
= 1;
981 mallwatch
= (void *) strtol(optarg
, NULL
, 0);
985 ctx
->device_name
= string_copy(ctx
, optarg
, 0);
991 ctx
->undo_file
= optarg
;
996 if (show_version_only
)
998 if (optind
!= argc
- 1)
1000 if ((ctx
->options
& E2F_OPT_NO
) &&
1001 (ctx
->options
& E2F_OPT_COMPRESS_DIRS
)) {
1002 com_err(ctx
->program_name
, 0, "%s",
1003 _("The -n and -D options are incompatible."));
1004 fatal_error(ctx
, 0);
1006 if ((ctx
->options
& E2F_OPT_NO
) && cflag
) {
1007 com_err(ctx
->program_name
, 0, "%s",
1008 _("The -n and -c options are incompatible."));
1009 fatal_error(ctx
, 0);
1011 if ((ctx
->options
& E2F_OPT_NO
) && bad_blocks_file
) {
1012 com_err(ctx
->program_name
, 0, "%s",
1013 _("The -n and -l/-L options are incompatible."));
1014 fatal_error(ctx
, 0);
1016 if (ctx
->options
& E2F_OPT_NO
)
1017 ctx
->options
|= E2F_OPT_READONLY
;
1019 ctx
->io_options
= strchr(argv
[optind
], '?');
1020 if (ctx
->io_options
)
1021 *ctx
->io_options
++ = 0;
1022 ctx
->filesystem_name
= blkid_get_devname(ctx
->blkid
, argv
[optind
], 0);
1023 if (!ctx
->filesystem_name
) {
1024 com_err(ctx
->program_name
, 0, _("Unable to resolve '%s'"),
1026 fatal_error(ctx
, 0);
1029 parse_extended_opts(ctx
, extended_opts
);
1031 /* Complain about mutually exclusive rebuilding activities */
1032 if (getenv("E2FSCK_FIXES_ONLY"))
1033 ctx
->options
|= E2F_OPT_FIXES_ONLY
;
1034 if ((ctx
->options
& E2F_OPT_COMPRESS_DIRS
) &&
1035 (ctx
->options
& E2F_OPT_FIXES_ONLY
)) {
1036 com_err(ctx
->program_name
, 0, "%s",
1037 _("The -D and -E fixes_only options are incompatible."));
1038 fatal_error(ctx
, 0);
1040 if ((ctx
->options
& E2F_OPT_CONVERT_BMAP
) &&
1041 (ctx
->options
& E2F_OPT_FIXES_ONLY
)) {
1042 com_err(ctx
->program_name
, 0, "%s",
1043 _("The -E bmap2extent and fixes_only options are incompatible."));
1044 fatal_error(ctx
, 0);
1047 if ((cp
= getenv("E2FSCK_CONFIG")) != NULL
)
1049 profile_set_syntax_err_cb(syntax_err_report
);
1050 profile_init(config_fn
, &ctx
->profile
);
1052 profile_get_boolean(ctx
->profile
, "options", "report_time", 0, 0,
1055 ctx
->options
|= E2F_OPT_TIME
| E2F_OPT_TIME2
;
1056 profile_get_boolean(ctx
->profile
, "options", "report_verbose", 0, 0,
1061 profile_get_boolean(ctx
->profile
, "options", "no_optimize_extents",
1064 ctx
->options
|= E2F_OPT_NOOPT_EXTENTS
;
1066 profile_get_boolean(ctx
->profile
, "options", "inode_count_fullmap",
1069 ctx
->options
|= E2F_OPT_ICOUNT_FULLMAP
;
1071 if (ctx
->readahead_kb
== ~0ULL) {
1072 profile_get_integer(ctx
->profile
, "options",
1073 "readahead_mem_pct", 0, -1, &c
);
1074 if (c
>= 0 && c
<= 100)
1075 ctx
->readahead_kb
= phys_mem_kb
* c
/ 100;
1076 profile_get_integer(ctx
->profile
, "options",
1077 "readahead_kb", 0, -1, &c
);
1079 ctx
->readahead_kb
= c
;
1080 if (ctx
->readahead_kb
!= ~0ULL &&
1081 ctx
->readahead_kb
> phys_mem_kb
)
1082 ctx
->readahead_kb
= phys_mem_kb
;
1085 /* Turn off discard in read-only mode */
1086 if ((ctx
->options
& E2F_OPT_NO
) &&
1087 (ctx
->options
& E2F_OPT_DISCARD
))
1088 ctx
->options
&= ~E2F_OPT_DISCARD
;
1091 fd
= open(ctx
->filesystem_name
, O_RDONLY
, 0);
1093 com_err("open", errno
,
1094 _("while opening %s for flushing"),
1095 ctx
->filesystem_name
);
1096 fatal_error(ctx
, 0);
1098 if ((retval
= ext2fs_sync_device(fd
, 1))) {
1099 com_err("ext2fs_sync_device", retval
,
1100 _("while trying to flush %s"),
1101 ctx
->filesystem_name
);
1102 fatal_error(ctx
, 0);
1106 if (cflag
&& bad_blocks_file
) {
1107 fprintf(stderr
, "%s", _("The -c and the -l/-L options may not "
1108 "be both used at the same time.\n"));
1111 #ifdef HAVE_SIGNAL_H
1113 * Set up signal action
1115 memset(&sa
, 0, sizeof(struct sigaction
));
1116 sa
.sa_handler
= signal_cancel
;
1117 sigaction(SIGINT
, &sa
, 0);
1118 sigaction(SIGTERM
, &sa
, 0);
1120 sa
.sa_flags
= SA_RESTART
;
1122 sa
.sa_handler
= signal_progress_on
;
1123 sigaction(SIGUSR1
, &sa
, 0);
1124 sa
.sa_handler
= signal_progress_off
;
1125 sigaction(SIGUSR2
, &sa
, 0);
1128 /* Update our PATH to include /sbin if we need to run badblocks */
1130 char *oldpath
= getenv("PATH");
1132 int len
= sizeof(PATH_SET
) + 1;
1135 len
+= strlen(oldpath
);
1137 newpath
= malloc(len
);
1139 fatal_error(ctx
, "Couldn't malloc() newpath");
1140 strcpy(newpath
, PATH_SET
);
1143 strcat(newpath
, ":");
1144 strcat(newpath
, oldpath
);
1148 #ifdef CONFIG_JBD_DEBUG
1149 jbd_debug
= getenv("E2FSCK_JBD_DEBUG");
1151 res
= sscanf(jbd_debug
, "%d", &journal_enable_debug
);
1154 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1163 fprintf(stderr
, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1168 static errcode_t
try_open_fs(e2fsck_t ctx
, int flags
, io_manager io_ptr
,
1169 ext2_filsys
*ret_fs
)
1174 if (ctx
->superblock
&& ctx
->blocksize
) {
1175 retval
= ext2fs_open2(ctx
->filesystem_name
, ctx
->io_options
,
1176 flags
, ctx
->superblock
, ctx
->blocksize
,
1178 } else if (ctx
->superblock
) {
1180 for (blocksize
= EXT2_MIN_BLOCK_SIZE
;
1181 blocksize
<= EXT2_MAX_BLOCK_SIZE
; blocksize
*= 2) {
1183 ext2fs_free(*ret_fs
);
1186 retval
= ext2fs_open2(ctx
->filesystem_name
,
1187 ctx
->io_options
, flags
,
1188 ctx
->superblock
, blocksize
,
1194 retval
= ext2fs_open2(ctx
->filesystem_name
, ctx
->io_options
,
1195 flags
, 0, 0, io_ptr
, ret_fs
);
1198 (*ret_fs
)->priv_data
= ctx
;
1199 e2fsck_set_bitmap_type(*ret_fs
, EXT2FS_BMAP64_RBTREE
,
1205 static const char *my_ver_string
= E2FSPROGS_VERSION
;
1206 static const char *my_ver_date
= E2FSPROGS_DATE
;
1208 static errcode_t
e2fsck_check_mmp(ext2_filsys fs
, e2fsck_t ctx
)
1210 struct mmp_struct
*mmp_s
;
1211 unsigned int mmp_check_interval
;
1212 errcode_t retval
= 0;
1213 struct problem_context pctx
;
1214 unsigned int wait_time
= 0;
1216 clear_problem_context(&pctx
);
1217 if (fs
->mmp_buf
== NULL
) {
1218 retval
= ext2fs_get_mem(fs
->blocksize
, &fs
->mmp_buf
);
1223 retval
= ext2fs_mmp_read(fs
, fs
->super
->s_mmp_block
, fs
->mmp_buf
);
1227 mmp_s
= fs
->mmp_buf
;
1229 mmp_check_interval
= fs
->super
->s_mmp_update_interval
;
1230 if (mmp_check_interval
< EXT4_MMP_MIN_CHECK_INTERVAL
)
1231 mmp_check_interval
= EXT4_MMP_MIN_CHECK_INTERVAL
;
1234 * If check_interval in MMP block is larger, use that instead of
1235 * check_interval from the superblock.
1237 if (mmp_s
->mmp_check_interval
> mmp_check_interval
)
1238 mmp_check_interval
= mmp_s
->mmp_check_interval
;
1240 wait_time
= mmp_check_interval
* 2 + 1;
1242 if (mmp_s
->mmp_seq
== EXT4_MMP_SEQ_CLEAN
)
1244 else if (mmp_s
->mmp_seq
== EXT4_MMP_SEQ_FSCK
)
1245 retval
= EXT2_ET_MMP_FSCK_ON
;
1246 else if (mmp_s
->mmp_seq
> EXT4_MMP_SEQ_MAX
)
1247 retval
= EXT2_ET_MMP_UNKNOWN_SEQ
;
1252 /* Print warning if e2fsck will wait for more than 20 secs. */
1253 if (verbose
|| wait_time
> EXT4_MMP_MIN_CHECK_INTERVAL
* 4) {
1254 log_out(ctx
, _("MMP interval is %u seconds and total wait "
1255 "time is %u seconds. Please wait...\n"),
1256 mmp_check_interval
, wait_time
* 2);
1263 if (retval
== EXT2_ET_MMP_BAD_BLOCK
) {
1264 if (fix_problem(ctx
, PR_0_MMP_INVALID_BLK
, &pctx
)) {
1265 fs
->super
->s_mmp_block
= 0;
1266 ext2fs_mark_super_dirty(fs
);
1269 } else if (retval
== EXT2_ET_MMP_FAILED
) {
1270 com_err(ctx
->program_name
, retval
, "%s",
1271 _("while checking MMP block"));
1272 dump_mmp_msg(fs
->mmp_buf
, NULL
);
1273 } else if (retval
== EXT2_ET_MMP_FSCK_ON
||
1274 retval
== EXT2_ET_MMP_UNKNOWN_SEQ
) {
1275 com_err(ctx
->program_name
, retval
, "%s",
1276 _("while checking MMP block"));
1277 dump_mmp_msg(fs
->mmp_buf
,
1278 _("If you are sure the filesystem is not "
1279 "in use on any node, run:\n"
1280 "'tune2fs -f -E clear_mmp %s'\n"),
1282 } else if (retval
== EXT2_ET_MMP_MAGIC_INVALID
) {
1283 if (fix_problem(ctx
, PR_0_MMP_INVALID_MAGIC
, &pctx
)) {
1284 ext2fs_mmp_clear(fs
);
1287 } else if (retval
== EXT2_ET_MMP_CSUM_INVALID
) {
1288 if (fix_problem(ctx
, PR_0_MMP_CSUM_INVALID
, &pctx
)) {
1289 ext2fs_mmp_clear(fs
);
1293 com_err(ctx
->program_name
, retval
, "%s",
1294 _("while reading MMP block"));
1298 static int e2fsck_setup_tdb(e2fsck_t ctx
, io_manager
*io_ptr
)
1300 errcode_t retval
= ENOMEM
;
1301 char *tdb_dir
= NULL
, *tdb_file
= NULL
;
1302 char *dev_name
, *tmp_name
;
1303 int free_tdb_dir
= 0;
1305 /* (re)open a specific undo file */
1306 if (ctx
->undo_file
&& ctx
->undo_file
[0] != 0) {
1307 retval
= set_undo_io_backing_manager(*io_ptr
);
1310 *io_ptr
= undo_io_manager
;
1311 retval
= set_undo_io_backup_file(ctx
->undo_file
);
1314 printf(_("Overwriting existing filesystem; this can be undone "
1315 "using the command:\n"
1316 " e2undo %s %s\n\n"),
1317 ctx
->undo_file
, ctx
->filesystem_name
);
1322 * Configuration via a conf file would be
1325 tdb_dir
= getenv("E2FSPROGS_UNDO_DIR");
1327 profile_get_string(ctx
->profile
, "defaults",
1328 "undo_dir", 0, "/var/lib/e2fsprogs",
1333 if (!strcmp(tdb_dir
, "none") || (tdb_dir
[0] == 0) ||
1334 access(tdb_dir
, W_OK
)) {
1340 tmp_name
= strdup(ctx
->filesystem_name
);
1343 dev_name
= basename(tmp_name
);
1344 tdb_file
= malloc(strlen(tdb_dir
) + 8 + strlen(dev_name
) + 7 + 1);
1349 sprintf(tdb_file
, "%s/e2fsck-%s.e2undo", tdb_dir
, dev_name
);
1352 if ((unlink(tdb_file
) < 0) && (errno
!= ENOENT
)) {
1354 com_err(ctx
->program_name
, retval
,
1355 _("while trying to delete %s"), tdb_file
);
1359 retval
= set_undo_io_backing_manager(*io_ptr
);
1362 *io_ptr
= undo_io_manager
;
1363 retval
= set_undo_io_backup_file(tdb_file
);
1366 printf(_("Overwriting existing filesystem; this can be undone "
1367 "using the command:\n"
1368 " e2undo %s %s\n\n"), tdb_file
, ctx
->filesystem_name
);
1380 com_err(ctx
->program_name
, retval
, "%s",
1381 _("while trying to setup undo file\n"));
1385 int main (int argc
, char *argv
[])
1387 errcode_t retval
= 0, retval2
= 0, orig_retval
= 0;
1388 int exit_value
= FSCK_OK
;
1391 struct ext2_super_block
*sb
;
1392 const char *lib_ver_date
;
1393 int my_ver
, lib_ver
;
1395 blk64_t orig_superblock
= ~(blk64_t
)0;
1396 struct problem_context pctx
;
1397 int flags
, run_result
, was_changed
;
1399 int sysval
, sys_page_size
= 4096;
1403 enum quota_type qtype
;
1404 struct ext2fs_journal_params jparams
;
1406 clear_problem_context(&pctx
);
1415 setlocale(LC_MESSAGES
, "");
1416 setlocale(LC_CTYPE
, "");
1417 bindtextdomain(NLS_CAT_NAME
, LOCALEDIR
);
1418 textdomain(NLS_CAT_NAME
);
1419 set_com_err_gettext(gettext
);
1421 my_ver
= ext2fs_parse_version_string(my_ver_string
);
1422 lib_ver
= ext2fs_get_library_version(0, &lib_ver_date
);
1423 if (my_ver
> lib_ver
) {
1424 fprintf( stderr
, "%s",
1425 _("Error: ext2fs library version out of date!\n"));
1426 show_version_only
++;
1429 retval
= PRS(argc
, argv
, &ctx
);
1431 com_err("e2fsck", retval
, "%s",
1432 _("while trying to initialize program"));
1435 reserve_stdio_fds();
1437 set_up_logging(ctx
);
1441 fputs("E2fsck run: ", ctx
->logf
);
1442 for (i
= 0; i
< argc
; i
++) {
1444 fputc(' ', ctx
->logf
);
1445 fputs(argv
[i
], ctx
->logf
);
1447 fputc('\n', ctx
->logf
);
1449 if (ctx
->problem_logf
) {
1452 fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n",
1454 fprintf(ctx
->problem_logf
, "<problem_log time=\"%lu\">\n",
1455 (unsigned long) ctx
->now
);
1456 fprintf(ctx
->problem_logf
, "<invocation prog=\"%s\"",
1458 for (i
= 1; i
< argc
; i
++)
1459 fprintf(ctx
->problem_logf
, " arg%d=\"%s\"", i
, argv
[i
]);
1460 fputs("/>\n", ctx
->problem_logf
);
1463 init_resource_track(&ctx
->global_rtrack
, NULL
);
1464 if (!(ctx
->options
& E2F_OPT_PREEN
) || show_version_only
)
1465 log_err(ctx
, "e2fsck %s (%s)\n", my_ver_string
,
1468 if (show_version_only
) {
1469 log_err(ctx
, _("\tUsing %s, %s\n"),
1470 error_message(EXT2_ET_BASE
), lib_ver_date
);
1476 if (!(ctx
->options
& E2F_OPT_PREEN
) &&
1477 !(ctx
->options
& E2F_OPT_NO
) &&
1478 !(ctx
->options
& E2F_OPT_YES
)) {
1479 if (!ctx
->interactive
)
1481 _("need terminal for interactive repairs"));
1483 ctx
->superblock
= ctx
->use_superblock
;
1485 flags
= EXT2_FLAG_SKIP_MMP
| EXT2_FLAG_THREADS
;
1487 #ifdef CONFIG_TESTIO_DEBUG
1488 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1489 io_ptr
= test_io_manager
;
1490 test_io_backing_manager
= unix_io_manager
;
1493 io_ptr
= unix_io_manager
;
1494 flags
|= EXT2_FLAG_NOFREE_ON_ERROR
;
1495 profile_get_boolean(ctx
->profile
, "options", "old_bitmaps", 0, 0,
1498 flags
|= EXT2_FLAG_64BITS
;
1499 if ((ctx
->options
& E2F_OPT_READONLY
) == 0) {
1500 flags
|= EXT2_FLAG_RW
;
1501 if (!(ctx
->mount_flags
& EXT2_MF_ISROOT
&&
1502 ctx
->mount_flags
& EXT2_MF_READONLY
))
1503 flags
|= EXT2_FLAG_EXCLUSIVE
;
1504 if ((ctx
->mount_flags
& EXT2_MF_READONLY
) &&
1505 (ctx
->options
& E2F_OPT_FORCE
))
1506 flags
&= ~EXT2_FLAG_EXCLUSIVE
;
1509 if (ctx
->undo_file
) {
1510 retval
= e2fsck_setup_tdb(ctx
, &io_ptr
);
1515 ctx
->openfs_flags
= flags
;
1516 retval
= try_open_fs(ctx
, flags
, io_ptr
, &fs
);
1518 if (!ctx
->superblock
&& !(ctx
->options
& E2F_OPT_PREEN
) &&
1519 !(ctx
->flags
& E2F_FLAG_SB_SPECIFIED
) &&
1520 ((retval
== EXT2_ET_BAD_MAGIC
) ||
1521 (retval
== EXT2_ET_SB_CSUM_INVALID
) ||
1522 (retval
== EXT2_ET_CORRUPT_SUPERBLOCK
) ||
1523 ((retval
== 0) && (retval2
= ext2fs_check_desc(fs
))))) {
1525 pctx
.errcode
= retval
;
1526 fix_problem(ctx
, PR_0_OPEN_FAILED
, &pctx
);
1529 pctx
.errcode
= retval2
;
1530 fix_problem(ctx
, PR_0_CHECK_DESC_FAILED
, &pctx
);
1533 if (retval2
== ENOMEM
|| retval2
== EXT2_ET_NO_MEMORY
) {
1537 if (fs
->flags
& EXT2_FLAG_NOFREE_ON_ERROR
) {
1541 if (!fs
|| (fs
->group_desc_count
> 1)) {
1542 log_out(ctx
, _("%s: %s trying backup blocks...\n"),
1544 retval
? _("Superblock invalid,") :
1545 _("Group descriptors look bad..."));
1546 orig_superblock
= ctx
->superblock
;
1547 get_backup_sb(ctx
, fs
, ctx
->filesystem_name
, io_ptr
);
1549 ext2fs_close_free(&fs
);
1550 orig_retval
= retval
;
1551 retval
= try_open_fs(ctx
, flags
, io_ptr
, &fs
);
1552 if ((orig_retval
== 0) && retval
!= 0) {
1554 ext2fs_close_free(&fs
);
1555 log_out(ctx
, _("%s: %s while using the "
1558 error_message(retval
));
1559 log_out(ctx
, _("%s: going back to original "
1562 ctx
->superblock
= orig_superblock
;
1563 retval
= try_open_fs(ctx
, flags
, io_ptr
, &fs
);
1567 if (((retval
== EXT2_ET_UNSUPP_FEATURE
) ||
1568 (retval
== EXT2_ET_RO_UNSUPP_FEATURE
)) &&
1571 features
[0] = (sb
->s_feature_compat
&
1572 ~EXT2_LIB_FEATURE_COMPAT_SUPP
);
1573 features
[1] = (sb
->s_feature_incompat
&
1574 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP
);
1575 features
[2] = (sb
->s_feature_ro_compat
&
1576 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP
);
1577 if (features
[0] || features
[1] || features
[2])
1578 goto print_unsupp_features
;
1583 retval
= orig_retval
;
1584 com_err(ctx
->program_name
, retval
, _("while trying to open %s"),
1585 ctx
->filesystem_name
);
1586 if (retval
== EXT2_ET_REV_TOO_HIGH
) {
1588 _("The filesystem revision is apparently "
1589 "too high for this version of e2fsck.\n"
1590 "(Or the filesystem superblock "
1591 "is corrupt)\n\n"));
1592 fix_problem(ctx
, PR_0_SB_CORRUPT
, &pctx
);
1593 } else if (retval
== EXT2_ET_SHORT_READ
)
1595 _("Could this be a zero-length partition?\n"));
1596 else if ((retval
== EPERM
) || (retval
== EACCES
))
1597 log_out(ctx
, _("You must have %s access to the "
1598 "filesystem or be root\n"),
1599 (ctx
->options
& E2F_OPT_READONLY
) ?
1601 else if (retval
== ENXIO
)
1603 _("Possibly non-existent or swap device?\n"));
1604 else if (retval
== EBUSY
)
1605 log_out(ctx
, "%s", _("Filesystem mounted or opened "
1606 "exclusively by another program?\n"));
1607 else if (retval
== ENOENT
)
1609 _("Possibly non-existent device?\n"));
1611 else if (retval
== EROFS
)
1612 log_out(ctx
, "%s", _("Disk write-protected; use the "
1613 "-n option to do a read-only\n"
1614 "check of the device.\n"));
1618 * Let's try once more will less consistency checking
1619 * so that we are able to recover from more errors
1620 * (e.g. some tool messing up some value in the sb).
1622 if (((retval
== EXT2_ET_CORRUPT_SUPERBLOCK
) ||
1623 (retval
== EXT2_ET_BAD_DESC_SIZE
)) &&
1624 !(flags
& EXT2_FLAG_IGNORE_SB_ERRORS
)) {
1626 ext2fs_close_free(&fs
);
1627 log_out(ctx
, _("%s: Trying to load superblock "
1628 "despite errors...\n"),
1630 flags
|= EXT2_FLAG_IGNORE_SB_ERRORS
;
1632 * If we tried backup sb, revert to the
1635 if (orig_superblock
!= ~(blk64_t
)0)
1636 ctx
->superblock
= orig_superblock
;
1639 fix_problem(ctx
, PR_0_SB_CORRUPT
, &pctx
);
1640 if (retval
== EXT2_ET_BAD_MAGIC
)
1641 check_plausibility(ctx
->filesystem_name
,
1642 CHECK_FS_EXIST
, NULL
);
1644 fatal_error(ctx
, 0);
1647 * We only update the master superblock because (a) paranoia;
1648 * we don't want to corrupt the backup superblocks, and (b) we
1649 * don't need to update the mount count and last checked
1650 * fields in the backup superblock (the kernel doesn't update
1651 * the backup superblocks anyway). With newer versions of the
1652 * library this flag is set by ext2fs_open2(), but we set this
1653 * here just to be sure. (No, we don't support e2fsck running
1654 * with some other libext2fs than the one that it was shipped
1655 * with, but just in case....)
1657 fs
->flags
|= EXT2_FLAG_MASTER_SB_ONLY
;
1659 if (!(ctx
->flags
& E2F_FLAG_GOT_DEVSIZE
)) {
1660 __u32 blocksize
= EXT2_BLOCK_SIZE(fs
->super
);
1661 int need_restart
= 0;
1663 pctx
.errcode
= ext2fs_get_device_size2(ctx
->filesystem_name
,
1667 * The floppy driver refuses to allow anyone else to
1668 * open the device if has been opened with O_EXCL;
1669 * this is unlike other block device drivers in Linux.
1670 * To handle this, we close the filesystem and then
1671 * reopen the filesystem after we get the device size.
1673 if (pctx
.errcode
== EBUSY
) {
1674 ext2fs_close_free(&fs
);
1677 ext2fs_get_device_size2(ctx
->filesystem_name
,
1681 if (pctx
.errcode
== EXT2_ET_UNIMPLEMENTED
)
1682 ctx
->num_blocks
= 0;
1683 else if (pctx
.errcode
) {
1684 fix_problem(ctx
, PR_0_GETSIZE_ERROR
, &pctx
);
1685 ctx
->flags
|= E2F_FLAG_ABORT
;
1686 fatal_error(ctx
, 0);
1688 ctx
->flags
|= E2F_FLAG_GOT_DEVSIZE
;
1697 if (sb
->s_rev_level
> E2FSCK_CURRENT_REV
) {
1698 com_err(ctx
->program_name
, EXT2_ET_REV_TOO_HIGH
,
1699 _("while trying to open %s"),
1700 ctx
->filesystem_name
);
1702 fatal_error(ctx
, _("Get a newer version of e2fsck!"));
1706 * Set the device name, which is used whenever we print error
1707 * or informational messages to the user.
1709 if (ctx
->device_name
== 0 && sb
->s_volume_name
[0])
1710 ctx
->device_name
= string_copy(ctx
, (char *) sb
->s_volume_name
,
1711 sizeof(sb
->s_volume_name
));
1713 if (ctx
->device_name
== 0)
1714 ctx
->device_name
= string_copy(ctx
, ctx
->filesystem_name
, 0);
1715 for (cp
= ctx
->device_name
; *cp
; cp
++)
1716 if (isspace(*cp
) || *cp
== ':')
1719 if (ctx
->problem_logf
) {
1721 fprintf(ctx
->problem_logf
, "<filesystem dev=\"%s\"",
1722 ctx
->filesystem_name
);
1723 if (!uuid_is_null(sb
->s_uuid
)) {
1726 uuid_unparse(sb
->s_uuid
, buf
);
1727 fprintf(ctx
->problem_logf
, " uuid=\"%s\"", buf
);
1729 if (sb
->s_volume_name
[0])
1730 fprintf(ctx
->problem_logf
, " label=\"%.*s\"",
1731 EXT2_LEN_STR(sb
->s_volume_name
));
1733 fputs("/>\n", ctx
->problem_logf
);
1736 ehandler_init(fs
->io
);
1738 if (ext2fs_has_feature_mmp(fs
->super
) &&
1739 (flags
& EXT2_FLAG_SKIP_MMP
)) {
1740 if (e2fsck_check_mmp(fs
, ctx
))
1741 fatal_error(ctx
, 0);
1744 * Restart in order to reopen fs but this time start mmp.
1746 ext2fs_close_free(&ctx
->fs
);
1747 flags
&= ~EXT2_FLAG_SKIP_MMP
;
1752 fprintf(ctx
->logf
, "Filesystem UUID: %s\n",
1753 e2p_uuid2str(sb
->s_uuid
));
1756 * Make sure the ext3 superblock fields are consistent.
1758 if ((ctx
->mount_flags
& (EXT2_MF_MOUNTED
| EXT2_MF_BUSY
)) == 0) {
1759 retval
= e2fsck_check_ext3_journal(ctx
);
1761 com_err(ctx
->program_name
, retval
,
1762 _("while checking journal for %s"),
1765 _("Cannot proceed with file system check"));
1770 * Check to see if we need to do ext3-style recovery. If so,
1771 * do it, and then restart the fsck.
1773 if (ext2fs_has_feature_journal_needs_recovery(sb
)) {
1774 if (ctx
->options
& E2F_OPT_READONLY
) {
1776 _("Warning: skipping journal recovery because "
1777 "doing a read-only filesystem check.\n"));
1778 io_channel_flush(ctx
->fs
->io
);
1780 if (ctx
->flags
& E2F_FLAG_RESTARTED
) {
1782 * Whoops, we attempted to run the
1783 * journal twice. This should never
1784 * happen, unless the hardware or
1785 * device driver is being bogus.
1787 com_err(ctx
->program_name
, 0,
1788 _("unable to set superblock flags "
1789 "on %s\n"), ctx
->device_name
);
1790 fatal_error(ctx
, 0);
1792 retval
= e2fsck_run_ext3_journal(ctx
);
1793 if (retval
== EFSBADCRC
) {
1794 log_out(ctx
, _("Journal checksum error "
1797 } else if (retval
== EFSCORRUPTED
) {
1798 log_out(ctx
, _("Journal corrupted in %s\n"),
1800 } else if (retval
) {
1801 com_err(ctx
->program_name
, retval
,
1802 _("while recovering journal of %s"),
1805 ext2fs_close_free(&ctx
->fs
);
1806 ctx
->flags
|= E2F_FLAG_RESTARTED
;
1812 * Check for compatibility with the feature sets. We need to
1813 * be more stringent than ext2fs_open().
1815 features
[0] = sb
->s_feature_compat
& ~EXT2_LIB_FEATURE_COMPAT_SUPP
;
1816 features
[1] = sb
->s_feature_incompat
& ~EXT2_LIB_FEATURE_INCOMPAT_SUPP
;
1817 features
[2] = (sb
->s_feature_ro_compat
&
1818 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP
);
1819 print_unsupp_features
:
1820 if (features
[0] || features
[1] || features
[2]) {
1822 __u32
*mask
= features
, m
;
1824 log_err(ctx
, _("%s has unsupported feature(s):"),
1825 ctx
->filesystem_name
);
1827 for (i
=0; i
<3; i
++,mask
++) {
1828 for (j
=0,m
=1; j
< 32; j
++, m
<<=1) {
1831 e2p_feature2string(i
, m
));
1838 if (ext2fs_has_feature_casefold(sb
) && !fs
->encoding
) {
1839 log_err(ctx
, _("%s has unsupported encoding: %0x\n"),
1840 ctx
->filesystem_name
, sb
->s_encoding
);
1845 * If the user specified a specific superblock, presumably the
1846 * master superblock has been trashed. So we mark the
1847 * superblock as dirty, so it can be written out.
1849 if (ctx
->superblock
&&
1850 !(ctx
->options
& E2F_OPT_READONLY
))
1851 ext2fs_mark_super_dirty(fs
);
1854 * Calculate the number of filesystem blocks per pagesize. If
1855 * fs->blocksize > page_size, set the number of blocks per
1856 * pagesize to 1 to avoid division by zero errors.
1859 sysval
= sysconf(_SC_PAGESIZE
);
1861 sys_page_size
= sysval
;
1862 #endif /* _SC_PAGESIZE */
1863 ctx
->blocks_per_page
= sys_page_size
/ fs
->blocksize
;
1864 if (ctx
->blocks_per_page
== 0)
1865 ctx
->blocks_per_page
= 1;
1867 if (ctx
->superblock
)
1868 set_latch_flags(PR_LATCH_RELOC
, PRL_LATCHED
, 0);
1869 ext2fs_mark_valid(fs
);
1870 check_super_block(ctx
);
1871 if (ctx
->flags
& E2F_FLAG_SIGNAL_MASK
)
1872 fatal_error(ctx
, 0);
1874 check_resize_inode(ctx
);
1875 if (bad_blocks_file
)
1876 read_bad_blocks_file(ctx
, bad_blocks_file
, replace_bad_blocks
);
1878 read_bad_blocks_file(ctx
, 0, !keep_bad_blocks
); /* Test disk */
1879 if (ctx
->flags
& E2F_FLAG_SIGNAL_MASK
)
1880 fatal_error(ctx
, 0);
1883 * Mark the system as valid, 'til proven otherwise
1885 ext2fs_mark_valid(fs
);
1887 retval
= ext2fs_read_bb_inode(fs
, &fs
->badblocks
);
1889 log_out(ctx
, _("%s: %s while reading bad blocks inode\n"),
1890 ctx
->program_name
, error_message(retval
));
1892 log_out(ctx
, "%s", _("This doesn't bode well, "
1893 "but we'll try to go on...\n"));
1897 * Save the journal size in megabytes.
1898 * Try and use the journal size from the backup else let e2fsck
1899 * find the default journal size. If fast commit feature is enabled,
1900 * it is not clear how many of the journal blocks were fast commit
1901 * blocks. So, ignore the size of journal found in backup.
1903 * TODO: Add a new backup type that captures fast commit info as
1906 if (sb
->s_jnl_backup_type
== EXT3_JNL_BACKUP_BLOCKS
&&
1907 !ext2fs_has_feature_fast_commit(sb
))
1908 journal_size
= (sb
->s_jnl_blocks
[15] << (32 - 20)) |
1909 (sb
->s_jnl_blocks
[16] >> 20);
1913 if (ext2fs_has_feature_quota(sb
)) {
1914 /* Quotas were enabled. Do quota accounting during fsck. */
1915 clear_problem_context(&pctx
);
1916 pctx
.errcode
= quota_init_context(&ctx
->qctx
, ctx
->fs
, 0);
1918 fix_problem(ctx
, PR_0_QUOTA_INIT_CTX
, &pctx
);
1919 fatal_error(ctx
, 0);
1923 run_result
= e2fsck_run(ctx
);
1924 e2fsck_clear_progbar(ctx
);
1926 if (!ctx
->invalid_bitmaps
&&
1927 (ctx
->flags
& E2F_FLAG_JOURNAL_INODE
)) {
1928 if (fix_problem(ctx
, PR_6_RECREATE_JOURNAL
, &pctx
)) {
1929 if (journal_size
< 1024) {
1930 ext2fs_get_journal_params(&jparams
, fs
);
1932 jparams
.num_journal_blocks
= journal_size
;
1933 jparams
.num_fc_blocks
= 0;
1935 log_out(ctx
, _("Creating journal (%d blocks): "),
1936 jparams
.num_journal_blocks
);
1938 retval
= ext2fs_add_journal_inode3(fs
, &jparams
, ~0ULL, 0);
1940 log_out(ctx
, "%s: while trying to create "
1941 "journal\n", error_message(retval
));
1944 log_out(ctx
, "%s", _(" Done.\n"));
1946 _("\n*** journal has been regenerated ***\n"));
1951 if (run_result
& E2F_FLAG_ABORT
) {
1952 fatal_error(ctx
, _("aborted"));
1953 } else if (run_result
& E2F_FLAG_CANCEL
) {
1954 log_out(ctx
, _("%s: e2fsck canceled.\n"), ctx
->device_name
?
1955 ctx
->device_name
: ctx
->filesystem_name
);
1956 exit_value
|= FSCK_CANCELED
;
1957 } else if (ctx
->qctx
&& !ctx
->invalid_bitmaps
) {
1960 for (qtype
= 0; qtype
< MAXQUOTAS
; qtype
++) {
1961 if (*quota_sb_inump(sb
, qtype
) == 0)
1965 retval
= quota_compare_and_update(ctx
->qctx
, qtype
,
1967 if ((retval
|| needs_writeout
) &&
1968 fix_problem(ctx
, PR_6_UPDATE_QUOTAS
, &pctx
)) {
1969 pctx
.errcode
= quota_write_inode(ctx
->qctx
,
1972 (void) fix_problem(ctx
,
1973 PR_6_WRITE_QUOTAS
, &pctx
);
1976 quota_release_context(&ctx
->qctx
);
1979 if (run_result
== E2F_FLAG_RESTART
) {
1981 _("Restarting e2fsck from the beginning...\n"));
1982 retval
= e2fsck_reset_context(ctx
);
1984 com_err(ctx
->program_name
, retval
, "%s",
1985 _("while resetting context"));
1986 fatal_error(ctx
, 0);
1988 ext2fs_close_free(&ctx
->fs
);
1993 mtrace_print("Cleanup");
1995 was_changed
= ext2fs_test_changed(fs
);
1996 if (!(ctx
->flags
& E2F_FLAG_RUN_RETURN
) &&
1997 !(ctx
->options
& E2F_OPT_READONLY
)) {
1998 if (ext2fs_test_valid(fs
)) {
1999 if (!(sb
->s_state
& EXT2_VALID_FS
))
2000 exit_value
|= FSCK_NONDESTRUCT
;
2001 sb
->s_state
= EXT2_VALID_FS
;
2002 if (check_backup_super_block(ctx
))
2003 fs
->flags
&= ~EXT2_FLAG_MASTER_SB_ONLY
;
2005 sb
->s_state
&= ~EXT2_VALID_FS
;
2006 if (!(ctx
->flags
& E2F_FLAG_TIME_INSANE
))
2007 sb
->s_lastcheck
= ctx
->now
;
2008 sb
->s_mnt_count
= 0;
2009 memset(((char *) sb
) + EXT4_S_ERR_START
, 0, EXT4_S_ERR_LEN
);
2010 pctx
.errcode
= ext2fs_set_gdt_csum(ctx
->fs
);
2012 fix_problem(ctx
, PR_6_SET_BG_CHECKSUM
, &pctx
);
2013 ext2fs_mark_super_dirty(fs
);
2016 if (ext2fs_has_feature_shared_blocks(ctx
->fs
->super
) &&
2017 (ctx
->options
& E2F_OPT_UNSHARE_BLOCKS
) &&
2018 (ctx
->options
& E2F_OPT_NO
))
2019 /* Don't try to write or flush I/O, we just wanted to know whether or
2020 * not there were enough free blocks to undo deduplication.
2024 if (!(ctx
->options
& E2F_OPT_READONLY
)) {
2025 e2fsck_write_bitmaps(ctx
);
2026 if (fs
->flags
& EXT2_FLAG_DIRTY
) {
2027 pctx
.errcode
= ext2fs_flush(ctx
->fs
);
2029 fix_problem(ctx
, PR_6_FLUSH_FILESYSTEM
, &pctx
);
2031 pctx
.errcode
= io_channel_flush(ctx
->fs
->io
);
2033 fix_problem(ctx
, PR_6_IO_FLUSH
, &pctx
);
2037 int fs_fixed
= (ctx
->flags
& E2F_FLAG_PROBLEMS_FIXED
);
2040 exit_value
|= FSCK_NONDESTRUCT
;
2041 if (!(ctx
->options
& E2F_OPT_PREEN
)) {
2042 #if 0 /* Do this later; it breaks too many tests' golden outputs */
2043 log_out(ctx
, fs_fixed
?
2044 _("\n%s: ***** FILE SYSTEM ERRORS "
2045 "CORRECTED *****\n") :
2046 _("%s: File system was modified.\n"),
2050 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
2054 if (ctx
->mount_flags
& EXT2_MF_ISROOT
) {
2055 log_out(ctx
, _("%s: ***** REBOOT SYSTEM *****\n"),
2057 exit_value
|= FSCK_REBOOT
;
2062 if (!ext2fs_test_valid(fs
) ||
2063 ((exit_value
& FSCK_CANCELED
) &&
2064 (sb
->s_state
& EXT2_ERROR_FS
))) {
2065 log_out(ctx
, _("\n%s: ********** WARNING: Filesystem still has "
2066 "errors **********\n\n"), ctx
->device_name
);
2067 exit_value
|= FSCK_UNCORRECTED
;
2068 exit_value
&= ~FSCK_NONDESTRUCT
;
2070 if (exit_value
& FSCK_CANCELED
) {
2071 int allow_cancellation
;
2073 profile_get_boolean(ctx
->profile
, "options",
2074 "allow_cancellation", 0, 0,
2075 &allow_cancellation
);
2076 exit_value
&= ~FSCK_NONDESTRUCT
;
2077 if (allow_cancellation
&& ext2fs_test_valid(fs
) &&
2078 (sb
->s_state
& EXT2_VALID_FS
) &&
2079 !(sb
->s_state
& EXT2_ERROR_FS
))
2084 print_resource_track(ctx
, NULL
, &ctx
->global_rtrack
, ctx
->fs
->io
);
2086 ext2fs_close_free(&ctx
->fs
);
2087 free(ctx
->journal_name
);
2090 fprintf(ctx
->logf
, "Exit status: %d\n", exit_value
);
2091 e2fsck_free_context(ctx
);
2092 remove_error_table(&et_ext2_error_table
);
2093 remove_error_table(&et_prof_error_table
);