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e2fsck: clean up error messages when journal is corrupted
[thirdparty/e2fsprogs.git] / e2fsck / unix.c
1 /*
2 * unix.c - The unix-specific code for e2fsck
3 *
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 */
11
12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
13
14 #include "config.h"
15 #include <stdio.h>
16 #ifdef HAVE_STDLIB_H
17 #include <stdlib.h>
18 #endif
19 #include <string.h>
20 #include <fcntl.h>
21 #include <ctype.h>
22 #include <time.h>
23 #ifdef HAVE_SIGNAL_H
24 #include <signal.h>
25 #endif
26 #ifdef HAVE_GETOPT_H
27 #include <getopt.h>
28 #else
29 extern char *optarg;
30 extern int optind;
31 #endif
32 #include <unistd.h>
33 #ifdef HAVE_ERRNO_H
34 #include <errno.h>
35 #endif
36 #ifdef HAVE_SYS_IOCTL_H
37 #include <sys/ioctl.h>
38 #endif
39 #ifdef HAVE_MALLOC_H
40 #include <malloc.h>
41 #endif
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
44 #endif
45 #ifdef HAVE_DIRENT_H
46 #include <dirent.h>
47 #endif
48 #include <libgen.h>
49
50 #include "e2p/e2p.h"
51 #include "et/com_err.h"
52 #include "e2p/e2p.h"
53 #include "support/plausible.h"
54 #include "e2fsck.h"
55 #include "problem.h"
56 #include "jfs_user.h"
57 #include "../version.h"
58
59 /* Command line options */
60 static int cflag; /* check disk */
61 static int show_version_only;
62 static int verbose;
63
64 static int replace_bad_blocks;
65 static int keep_bad_blocks;
66 static char *bad_blocks_file;
67
68 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
69
70 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
71 int journal_enable_debug = -1;
72 #endif
73
74 static void usage(e2fsck_t ctx)
75 {
76 fprintf(stderr,
77 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n"
78 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\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"),
81 ctx->program_name);
82
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", _(""
90 " -v Be verbose\n"
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"
97 ));
98
99 exit(FSCK_USAGE);
100 }
101
102 static void show_stats(e2fsck_t ctx)
103 {
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;
109 __u32 *mask, m;
110 int frag_percent_file, frag_percent_dir, frag_percent_total;
111 int i, j, printed = 0;
112
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));
122
123 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
124 frag_percent_file = (frag_percent_file + 5) / 10;
125
126 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
127 frag_percent_dir = (frag_percent_dir + 5) / 10;
128
129 frag_percent_total = ((10000 * (ctx->fs_fragmented +
130 ctx->fs_fragmented_dir))
131 / inodes_used);
132 frag_percent_total = (frag_percent_total + 5) / 10;
133
134 if (!verbose) {
135 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
136 "%llu/%llu blocks\n"),
137 ctx->device_name, inodes_used, inodes,
138 frag_percent_total / 10, frag_percent_total % 10,
139 blocks_used, blocks);
140 return;
141 }
142 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
143 &i);
144 if (verbose && i) {
145 log_out(ctx, "\nFilesystem features:");
146 mask = &ctx->fs->super->s_feature_compat;
147 for (i = 0; i < 3; i++, mask++) {
148 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
149 if (*mask & m) {
150 log_out(ctx, " %s",
151 e2p_feature2string(i, m));
152 printed++;
153 }
154 }
155 }
156 if (printed == 0)
157 log_out(ctx, " (none)");
158 log_out(ctx, "\n");
159 }
160
161 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
162 "\n%12u inodes used (%2.2f%%, out of %u)\n",
163 inodes_used), inodes_used,
164 100.0 * inodes_used / inodes, inodes);
165 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
166 "%12u non-contiguous files (%0d.%d%%)\n",
167 ctx->fs_fragmented),
168 ctx->fs_fragmented, frag_percent_file / 10,
169 frag_percent_file % 10);
170 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
171 "%12u non-contiguous directories (%0d.%d%%)\n",
172 ctx->fs_fragmented_dir),
173 ctx->fs_fragmented_dir, frag_percent_dir / 10,
174 frag_percent_dir % 10);
175 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
176 "%u/%u/%u\n"),
177 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
178
179 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
180 if (ctx->extent_depth_count[j])
181 break;
182 if (++j) {
183 log_out(ctx, "%s", _(" Extent depth histogram: "));
184 for (i=0; i < j; i++) {
185 if (i)
186 fputc('/', stdout);
187 log_out(ctx, "%u", ctx->extent_depth_count[i]);
188 }
189 log_out(ctx, "\n");
190 }
191
192 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
193 "%12llu blocks used (%2.2f%%, out of %llu)\n",
194 blocks_used),
195 blocks_used, 100.0 * blocks_used / blocks, blocks);
196 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
197 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
198 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
199 ctx->large_files), ctx->large_files);
200 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
201 ctx->fs_regular_count), ctx->fs_regular_count);
202 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
203 ctx->fs_directory_count), ctx->fs_directory_count);
204 log_out(ctx, P_("%12u character device file\n",
205 "%12u character device files\n", ctx->fs_chardev_count),
206 ctx->fs_chardev_count);
207 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
208 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
209 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
210 ctx->fs_fifo_count);
211 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
212 ctx->fs_links_count - dir_links);
213 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
214 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
215 log_out(ctx, P_(" (%u fast symbolic link)\n",
216 " (%u fast symbolic links)\n",
217 ctx->fs_fast_symlinks_count),
218 ctx->fs_fast_symlinks_count);
219 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
220 ctx->fs_sockets_count),
221 ctx->fs_sockets_count);
222 log_out(ctx, "------------\n");
223 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
224 num_files);
225 }
226
227 static void check_mount(e2fsck_t ctx)
228 {
229 errcode_t retval;
230 int cont;
231
232 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
233 &ctx->mount_flags);
234 if (retval) {
235 com_err("ext2fs_check_if_mount", retval,
236 _("while determining whether %s is mounted."),
237 ctx->filesystem_name);
238 return;
239 }
240
241 /*
242 * If the filesystem isn't mounted, or it's the root
243 * filesystem and it's mounted read-only, and we're not doing
244 * a read/write check, then everything's fine.
245 */
246 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
247 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
248 (ctx->mount_flags & EXT2_MF_READONLY) &&
249 !(ctx->options & E2F_OPT_WRITECHECK)))
250 return;
251
252 if (((ctx->options & E2F_OPT_READONLY) ||
253 ((ctx->options & E2F_OPT_FORCE) &&
254 (ctx->mount_flags & EXT2_MF_READONLY))) &&
255 !(ctx->options & E2F_OPT_WRITECHECK)) {
256 if (ctx->mount_flags & EXT2_MF_MOUNTED)
257 log_out(ctx, _("Warning! %s is mounted.\n"),
258 ctx->filesystem_name);
259 else
260 log_out(ctx, _("Warning! %s is in use.\n"),
261 ctx->filesystem_name);
262 return;
263 }
264
265 if (ctx->mount_flags & EXT2_MF_MOUNTED)
266 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
267 else
268 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
269 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
270 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
271 puts("\007\007\007\007");
272 log_out(ctx, "%s", _("\n\nWARNING!!! "
273 "The filesystem is mounted. "
274 "If you continue you ***WILL***\n"
275 "cause ***SEVERE*** filesystem damage.\n\n"));
276 puts("\007\007\007");
277 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
278 if (!cont) {
279 printf("%s", _("check aborted.\n"));
280 exit (0);
281 }
282 return;
283 }
284
285 static int is_on_batt(void)
286 {
287 FILE *f;
288 DIR *d;
289 char tmp[80], tmp2[80], fname[80];
290 unsigned int acflag;
291 struct dirent* de;
292
293 f = fopen("/sys/class/power_supply/AC/online", "r");
294 if (f) {
295 if (fscanf(f, "%u\n", &acflag) == 1) {
296 fclose(f);
297 return (!acflag);
298 }
299 fclose(f);
300 }
301 f = fopen("/proc/apm", "r");
302 if (f) {
303 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
304 acflag = 1;
305 fclose(f);
306 return (acflag != 1);
307 }
308 d = opendir("/proc/acpi/ac_adapter");
309 if (d) {
310 while ((de=readdir(d)) != NULL) {
311 if (!strncmp(".", de->d_name, 1))
312 continue;
313 snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
314 de->d_name);
315 f = fopen(fname, "r");
316 if (!f)
317 continue;
318 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
319 tmp[0] = 0;
320 fclose(f);
321 if (strncmp(tmp, "off-line", 8) == 0) {
322 closedir(d);
323 return 1;
324 }
325 }
326 closedir(d);
327 }
328 return 0;
329 }
330
331 /*
332 * This routine checks to see if a filesystem can be skipped; if so,
333 * it will exit with E2FSCK_OK. Under some conditions it will print a
334 * message explaining why a check is being forced.
335 */
336 static void check_if_skip(e2fsck_t ctx)
337 {
338 ext2_filsys fs = ctx->fs;
339 struct problem_context pctx;
340 const char *reason = NULL;
341 unsigned int reason_arg = 0;
342 long next_check;
343 int batt = is_on_batt();
344 int defer_check_on_battery;
345 int broken_system_clock;
346 time_t lastcheck;
347
348 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
349 return;
350
351 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
352 0, 0, &broken_system_clock);
353 if (ctx->flags & E2F_FLAG_TIME_INSANE)
354 broken_system_clock = 1;
355 profile_get_boolean(ctx->profile, "options",
356 "defer_check_on_battery", 0, 1,
357 &defer_check_on_battery);
358 if (!defer_check_on_battery)
359 batt = 0;
360
361 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
362 return;
363
364 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
365 goto skip;
366
367 lastcheck = fs->super->s_lastcheck;
368 if (lastcheck > ctx->now)
369 lastcheck -= ctx->time_fudge;
370 if ((fs->super->s_state & EXT2_ERROR_FS) ||
371 !ext2fs_test_valid(fs))
372 reason = _(" contains a file system with errors");
373 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
374 reason = _(" was not cleanly unmounted");
375 else if (check_backup_super_block(ctx))
376 reason = _(" primary superblock features different from backup");
377 else if ((fs->super->s_max_mnt_count > 0) &&
378 (fs->super->s_mnt_count >=
379 (unsigned) fs->super->s_max_mnt_count)) {
380 reason = _(" has been mounted %u times without being checked");
381 reason_arg = fs->super->s_mnt_count;
382 if (batt && (fs->super->s_mnt_count <
383 (unsigned) fs->super->s_max_mnt_count*2))
384 reason = 0;
385 } else if (!broken_system_clock && fs->super->s_checkinterval &&
386 (ctx->now < lastcheck)) {
387 reason = _(" has filesystem last checked time in the future");
388 if (batt)
389 reason = 0;
390 } else if (!broken_system_clock && fs->super->s_checkinterval &&
391 ((ctx->now - lastcheck) >=
392 ((time_t) fs->super->s_checkinterval))) {
393 reason = _(" has gone %u days without being checked");
394 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
395 if (batt && ((ctx->now - fs->super->s_lastcheck) <
396 fs->super->s_checkinterval*2))
397 reason = 0;
398 }
399 if (reason) {
400 log_out(ctx, "%s", ctx->device_name);
401 log_out(ctx, reason, reason_arg);
402 log_out(ctx, "%s", _(", check forced.\n"));
403 return;
404 }
405
406 /*
407 * Update the global counts from the block group counts. This
408 * is needed since modern kernels don't update the global
409 * counts so as to avoid locking the entire file system. So
410 * if the filesystem is not unmounted cleanly, the global
411 * counts may not be accurate. Update them here if we can,
412 * for the benefit of users who might examine the file system
413 * using dumpe2fs. (This is for cosmetic reasons only.)
414 */
415 clear_problem_context(&pctx);
416 pctx.ino = fs->super->s_free_inodes_count;
417 pctx.ino2 = ctx->free_inodes;
418 if ((pctx.ino != pctx.ino2) &&
419 !(ctx->options & E2F_OPT_READONLY) &&
420 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
421 fs->super->s_free_inodes_count = ctx->free_inodes;
422 ext2fs_mark_super_dirty(fs);
423 }
424 clear_problem_context(&pctx);
425 pctx.blk = ext2fs_free_blocks_count(fs->super);
426 pctx.blk2 = ctx->free_blocks;
427 if ((pctx.blk != pctx.blk2) &&
428 !(ctx->options & E2F_OPT_READONLY) &&
429 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
430 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
431 ext2fs_mark_super_dirty(fs);
432 }
433
434 /* Print the summary message when we're skipping a full check */
435 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
436 ctx->device_name,
437 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
438 fs->super->s_inodes_count,
439 ext2fs_blocks_count(fs->super) -
440 ext2fs_free_blocks_count(fs->super),
441 ext2fs_blocks_count(fs->super));
442 next_check = 100000;
443 if (fs->super->s_max_mnt_count > 0) {
444 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
445 if (next_check <= 0)
446 next_check = 1;
447 }
448 if (!broken_system_clock && fs->super->s_checkinterval &&
449 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
450 next_check = 1;
451 if (next_check <= 5) {
452 if (next_check == 1) {
453 if (batt)
454 log_out(ctx, "%s",
455 _(" (check deferred; on battery)"));
456 else
457 log_out(ctx, "%s",
458 _(" (check after next mount)"));
459 } else
460 log_out(ctx, _(" (check in %ld mounts)"),
461 next_check);
462 }
463 log_out(ctx, "\n");
464 skip:
465 ext2fs_close_free(&ctx->fs);
466 e2fsck_free_context(ctx);
467 exit(FSCK_OK);
468 }
469
470 /*
471 * For completion notice
472 */
473 struct percent_tbl {
474 int max_pass;
475 int table[32];
476 };
477 static struct percent_tbl e2fsck_tbl = {
478 5, { 0, 70, 90, 92, 95, 100 }
479 };
480 static char bar[128], spaces[128];
481
482 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
483 int max)
484 {
485 float percent;
486
487 if (pass <= 0)
488 return 0.0;
489 if (pass > tbl->max_pass || max == 0)
490 return 100.0;
491 percent = ((float) curr) / ((float) max);
492 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
493 + tbl->table[pass-1]);
494 }
495
496 void e2fsck_clear_progbar(e2fsck_t ctx)
497 {
498 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
499 return;
500
501 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
502 ctx->stop_meta);
503 fflush(stdout);
504 ctx->flags &= ~E2F_FLAG_PROG_BAR;
505 }
506
507 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
508 unsigned int dpynum)
509 {
510 static const char spinner[] = "\\|/-";
511 int i;
512 unsigned int tick;
513 struct timeval tv;
514 int dpywidth;
515 int fixed_percent;
516
517 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
518 return 0;
519
520 /*
521 * Calculate the new progress position. If the
522 * percentage hasn't changed, then we skip out right
523 * away.
524 */
525 fixed_percent = (int) ((10 * percent) + 0.5);
526 if (ctx->progress_last_percent == fixed_percent)
527 return 0;
528 ctx->progress_last_percent = fixed_percent;
529
530 /*
531 * If we've already updated the spinner once within
532 * the last 1/8th of a second, no point doing it
533 * again.
534 */
535 gettimeofday(&tv, NULL);
536 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
537 if ((tick == ctx->progress_last_time) &&
538 (fixed_percent != 0) && (fixed_percent != 1000))
539 return 0;
540 ctx->progress_last_time = tick;
541
542 /*
543 * Advance the spinner, and note that the progress bar
544 * will be on the screen
545 */
546 ctx->progress_pos = (ctx->progress_pos+1) & 3;
547 ctx->flags |= E2F_FLAG_PROG_BAR;
548
549 dpywidth = 66 - strlen(label);
550 dpywidth = 8 * (dpywidth / 8);
551 if (dpynum)
552 dpywidth -= 8;
553
554 i = ((percent * dpywidth) + 50) / 100;
555 printf("%s%s: |%s%s", ctx->start_meta, label,
556 bar + (sizeof(bar) - (i+1)),
557 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
558 if (fixed_percent == 1000)
559 fputc('|', stdout);
560 else
561 fputc(spinner[ctx->progress_pos & 3], stdout);
562 printf(" %4.1f%% ", percent);
563 if (dpynum)
564 printf("%u\r", dpynum);
565 else
566 fputs(" \r", stdout);
567 fputs(ctx->stop_meta, stdout);
568
569 if (fixed_percent == 1000)
570 e2fsck_clear_progbar(ctx);
571 fflush(stdout);
572
573 return 0;
574 }
575
576 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
577 unsigned long cur, unsigned long max)
578 {
579 char buf[1024];
580 float percent;
581
582 if (pass == 0)
583 return 0;
584
585 if (ctx->progress_fd) {
586 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
587 pass, cur, max, ctx->device_name);
588 write_all(ctx->progress_fd, buf, strlen(buf));
589 } else {
590 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
591 e2fsck_simple_progress(ctx, ctx->device_name,
592 percent, 0);
593 }
594 return 0;
595 }
596
597 #define PATH_SET "PATH=/sbin"
598
599 /*
600 * Make sure 0,1,2 file descriptors are open, so that we don't open
601 * the filesystem using the same file descriptor as stdout or stderr.
602 */
603 static void reserve_stdio_fds(void)
604 {
605 int fd = 0;
606
607 while (fd <= 2) {
608 fd = open("/dev/null", O_RDWR);
609 if (fd < 0) {
610 fprintf(stderr, _("ERROR: Couldn't open "
611 "/dev/null (%s)\n"),
612 strerror(errno));
613 break;
614 }
615 }
616 }
617
618 #ifdef HAVE_SIGNAL_H
619 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
620 {
621 e2fsck_t ctx = e2fsck_global_ctx;
622
623 if (!ctx)
624 return;
625
626 ctx->progress = e2fsck_update_progress;
627 }
628
629 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
630 {
631 e2fsck_t ctx = e2fsck_global_ctx;
632
633 if (!ctx)
634 return;
635
636 e2fsck_clear_progbar(ctx);
637 ctx->progress = 0;
638 }
639
640 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
641 {
642 e2fsck_t ctx = e2fsck_global_ctx;
643
644 if (!ctx)
645 exit(FSCK_CANCELED);
646
647 ctx->flags |= E2F_FLAG_CANCEL;
648 }
649 #endif
650
651 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
652 {
653 char *buf, *token, *next, *p, *arg;
654 int ea_ver;
655 int extended_usage = 0;
656 unsigned long long reada_kb;
657
658 buf = string_copy(ctx, opts, 0);
659 for (token = buf; token && *token; token = next) {
660 p = strchr(token, ',');
661 next = 0;
662 if (p) {
663 *p = 0;
664 next = p+1;
665 }
666 arg = strchr(token, '=');
667 if (arg) {
668 *arg = 0;
669 arg++;
670 }
671 if (strcmp(token, "ea_ver") == 0) {
672 if (!arg) {
673 extended_usage++;
674 continue;
675 }
676 ea_ver = strtoul(arg, &p, 0);
677 if (*p ||
678 ((ea_ver != 1) && (ea_ver != 2))) {
679 fprintf(stderr, "%s",
680 _("Invalid EA version.\n"));
681 extended_usage++;
682 continue;
683 }
684 ctx->ext_attr_ver = ea_ver;
685 } else if (strcmp(token, "readahead_kb") == 0) {
686 if (!arg) {
687 extended_usage++;
688 continue;
689 }
690 reada_kb = strtoull(arg, &p, 0);
691 if (*p) {
692 fprintf(stderr, "%s",
693 _("Invalid readahead buffer size.\n"));
694 extended_usage++;
695 continue;
696 }
697 ctx->readahead_kb = reada_kb;
698 } else if (strcmp(token, "fragcheck") == 0) {
699 ctx->options |= E2F_OPT_FRAGCHECK;
700 continue;
701 } else if (strcmp(token, "journal_only") == 0) {
702 if (arg) {
703 extended_usage++;
704 continue;
705 }
706 ctx->options |= E2F_OPT_JOURNAL_ONLY;
707 } else if (strcmp(token, "discard") == 0) {
708 ctx->options |= E2F_OPT_DISCARD;
709 continue;
710 } else if (strcmp(token, "nodiscard") == 0) {
711 ctx->options &= ~E2F_OPT_DISCARD;
712 continue;
713 } else if (strcmp(token, "log_filename") == 0) {
714 if (!arg)
715 extended_usage++;
716 else
717 ctx->log_fn = string_copy(ctx, arg, 0);
718 continue;
719 } else if (strcmp(token, "bmap2extent") == 0) {
720 ctx->options |= E2F_OPT_CONVERT_BMAP;
721 continue;
722 } else if (strcmp(token, "fixes_only") == 0) {
723 ctx->options |= E2F_OPT_FIXES_ONLY;
724 continue;
725 } else {
726 fprintf(stderr, _("Unknown extended option: %s\n"),
727 token);
728 extended_usage++;
729 }
730 }
731 free(buf);
732
733 if (extended_usage) {
734 fputs(("\nExtended options are separated by commas, "
735 "and may take an argument which\n"
736 "is set off by an equals ('=') sign. "
737 "Valid extended options are:\n"), stderr);
738 fputs(("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
739 fputs(("\tfragcheck\n"), stderr);
740 fputs(("\tjournal_only\n"), stderr);
741 fputs(("\tdiscard\n"), stderr);
742 fputs(("\tnodiscard\n"), stderr);
743 fputs(("\treadahead_kb=<buffer size>\n"), stderr);
744 fputs(("\tbmap2extent\n"), stderr);
745 fputc('\n', stderr);
746 exit(1);
747 }
748 }
749
750 static void syntax_err_report(const char *filename, long err, int line_num)
751 {
752 fprintf(stderr,
753 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
754 filename, line_num, error_message(err));
755 exit(FSCK_ERROR);
756 }
757
758 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
759
760 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
761 {
762 int flush = 0;
763 int c, fd;
764 #ifdef MTRACE
765 extern void *mallwatch;
766 #endif
767 e2fsck_t ctx;
768 errcode_t retval;
769 #ifdef HAVE_SIGNAL_H
770 struct sigaction sa;
771 #endif
772 char *extended_opts = 0;
773 char *cp;
774 int res; /* result of sscanf */
775 #ifdef CONFIG_JBD_DEBUG
776 char *jbd_debug;
777 #endif
778 unsigned long long phys_mem_kb;
779
780 retval = e2fsck_allocate_context(&ctx);
781 if (retval)
782 return retval;
783
784 *ret_ctx = ctx;
785 e2fsck_global_ctx = ctx;
786
787 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
788 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
789 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
790 ctx->interactive = 1;
791 } else {
792 ctx->start_meta[0] = '\001';
793 ctx->stop_meta[0] = '\002';
794 }
795 memset(bar, '=', sizeof(bar)-1);
796 memset(spaces, ' ', sizeof(spaces)-1);
797 add_error_table(&et_ext2_error_table);
798 add_error_table(&et_prof_error_table);
799 blkid_get_cache(&ctx->blkid, NULL);
800
801 if (argc && *argv)
802 ctx->program_name = *argv;
803 else
804 ctx->program_name = "e2fsck";
805
806 phys_mem_kb = get_memory_size() / 1024;
807 ctx->readahead_kb = ~0ULL;
808 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
809 switch (c) {
810 case 'C':
811 ctx->progress = e2fsck_update_progress;
812 res = sscanf(optarg, "%d", &ctx->progress_fd);
813 if (res != 1)
814 goto sscanf_err;
815
816 if (ctx->progress_fd < 0) {
817 ctx->progress = 0;
818 ctx->progress_fd = ctx->progress_fd * -1;
819 }
820 if (!ctx->progress_fd)
821 break;
822 /* Validate the file descriptor to avoid disasters */
823 fd = dup(ctx->progress_fd);
824 if (fd < 0) {
825 fprintf(stderr,
826 _("Error validating file descriptor %d: %s\n"),
827 ctx->progress_fd,
828 error_message(errno));
829 fatal_error(ctx,
830 _("Invalid completion information file descriptor"));
831 } else
832 close(fd);
833 break;
834 case 'D':
835 ctx->options |= E2F_OPT_COMPRESS_DIRS;
836 break;
837 case 'E':
838 extended_opts = optarg;
839 break;
840 case 'p':
841 case 'a':
842 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
843 conflict_opt:
844 fatal_error(ctx,
845 _("Only one of the options -p/-a, -n or -y may be specified."));
846 }
847 ctx->options |= E2F_OPT_PREEN;
848 break;
849 case 'n':
850 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
851 goto conflict_opt;
852 ctx->options |= E2F_OPT_NO;
853 break;
854 case 'y':
855 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
856 goto conflict_opt;
857 ctx->options |= E2F_OPT_YES;
858 break;
859 case 't':
860 #ifdef RESOURCE_TRACK
861 if (ctx->options & E2F_OPT_TIME)
862 ctx->options |= E2F_OPT_TIME2;
863 else
864 ctx->options |= E2F_OPT_TIME;
865 #else
866 fprintf(stderr, _("The -t option is not "
867 "supported on this version of e2fsck.\n"));
868 #endif
869 break;
870 case 'c':
871 if (cflag++)
872 ctx->options |= E2F_OPT_WRITECHECK;
873 ctx->options |= E2F_OPT_CHECKBLOCKS;
874 break;
875 case 'r':
876 /* What we do by default, anyway! */
877 break;
878 case 'b':
879 res = sscanf(optarg, "%llu", &ctx->use_superblock);
880 if (res != 1)
881 goto sscanf_err;
882 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
883 break;
884 case 'B':
885 ctx->blocksize = atoi(optarg);
886 break;
887 case 'I':
888 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
889 if (res != 1)
890 goto sscanf_err;
891 break;
892 case 'j':
893 ctx->journal_name = blkid_get_devname(ctx->blkid,
894 optarg, NULL);
895 if (!ctx->journal_name) {
896 com_err(ctx->program_name, 0,
897 _("Unable to resolve '%s'"),
898 optarg);
899 fatal_error(ctx, 0);
900 }
901 break;
902 case 'P':
903 res = sscanf(optarg, "%d", &ctx->process_inode_size);
904 if (res != 1)
905 goto sscanf_err;
906 break;
907 case 'L':
908 replace_bad_blocks++;
909 case 'l':
910 if (bad_blocks_file)
911 free(bad_blocks_file);
912 bad_blocks_file = string_copy(ctx, optarg, 0);
913 break;
914 case 'd':
915 ctx->options |= E2F_OPT_DEBUG;
916 break;
917 case 'f':
918 ctx->options |= E2F_OPT_FORCE;
919 break;
920 case 'F':
921 flush = 1;
922 break;
923 case 'v':
924 verbose = 1;
925 break;
926 case 'V':
927 show_version_only = 1;
928 break;
929 #ifdef MTRACE
930 case 'M':
931 mallwatch = (void *) strtol(optarg, NULL, 0);
932 break;
933 #endif
934 case 'N':
935 ctx->device_name = string_copy(ctx, optarg, 0);
936 break;
937 case 'k':
938 keep_bad_blocks++;
939 break;
940 case 'z':
941 ctx->undo_file = optarg;
942 break;
943 default:
944 usage(ctx);
945 }
946 if (show_version_only)
947 return 0;
948 if (optind != argc - 1)
949 usage(ctx);
950 if ((ctx->options & E2F_OPT_NO) &&
951 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
952 com_err(ctx->program_name, 0, "%s",
953 _("The -n and -D options are incompatible."));
954 fatal_error(ctx, 0);
955 }
956 if ((ctx->options & E2F_OPT_NO) && cflag) {
957 com_err(ctx->program_name, 0, "%s",
958 _("The -n and -c options are incompatible."));
959 fatal_error(ctx, 0);
960 }
961 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
962 com_err(ctx->program_name, 0, "%s",
963 _("The -n and -l/-L options are incompatible."));
964 fatal_error(ctx, 0);
965 }
966 if (ctx->options & E2F_OPT_NO)
967 ctx->options |= E2F_OPT_READONLY;
968
969 ctx->io_options = strchr(argv[optind], '?');
970 if (ctx->io_options)
971 *ctx->io_options++ = 0;
972 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
973 if (!ctx->filesystem_name) {
974 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
975 argv[optind]);
976 fatal_error(ctx, 0);
977 }
978 if (extended_opts)
979 parse_extended_opts(ctx, extended_opts);
980
981 /* Complain about mutually exclusive rebuilding activities */
982 if (getenv("E2FSCK_FIXES_ONLY"))
983 ctx->options |= E2F_OPT_FIXES_ONLY;
984 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
985 (ctx->options & E2F_OPT_FIXES_ONLY)) {
986 com_err(ctx->program_name, 0, "%s",
987 _("The -D and -E fixes_only options are incompatible."));
988 fatal_error(ctx, 0);
989 }
990 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
991 (ctx->options & E2F_OPT_FIXES_ONLY)) {
992 com_err(ctx->program_name, 0, "%s",
993 _("The -E bmap2extent and fixes_only options are incompatible."));
994 fatal_error(ctx, 0);
995 }
996
997 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
998 config_fn[0] = cp;
999 profile_set_syntax_err_cb(syntax_err_report);
1000 profile_init(config_fn, &ctx->profile);
1001
1002 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1003 &c);
1004 if (c)
1005 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1006 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1007 &c);
1008 if (c)
1009 verbose = 1;
1010
1011 if (ctx->readahead_kb == ~0ULL) {
1012 profile_get_integer(ctx->profile, "options",
1013 "readahead_mem_pct", 0, -1, &c);
1014 if (c >= 0 && c <= 100)
1015 ctx->readahead_kb = phys_mem_kb * c / 100;
1016 profile_get_integer(ctx->profile, "options",
1017 "readahead_kb", 0, -1, &c);
1018 if (c >= 0)
1019 ctx->readahead_kb = c;
1020 if (ctx->readahead_kb != ~0ULL &&
1021 ctx->readahead_kb > phys_mem_kb)
1022 ctx->readahead_kb = phys_mem_kb;
1023 }
1024
1025 /* Turn off discard in read-only mode */
1026 if ((ctx->options & E2F_OPT_NO) &&
1027 (ctx->options & E2F_OPT_DISCARD))
1028 ctx->options &= ~E2F_OPT_DISCARD;
1029
1030 if (flush) {
1031 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1032 if (fd < 0) {
1033 com_err("open", errno,
1034 _("while opening %s for flushing"),
1035 ctx->filesystem_name);
1036 fatal_error(ctx, 0);
1037 }
1038 if ((retval = ext2fs_sync_device(fd, 1))) {
1039 com_err("ext2fs_sync_device", retval,
1040 _("while trying to flush %s"),
1041 ctx->filesystem_name);
1042 fatal_error(ctx, 0);
1043 }
1044 close(fd);
1045 }
1046 if (cflag && bad_blocks_file) {
1047 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1048 "be both used at the same time.\n"));
1049 exit(FSCK_USAGE);
1050 }
1051 #ifdef HAVE_SIGNAL_H
1052 /*
1053 * Set up signal action
1054 */
1055 memset(&sa, 0, sizeof(struct sigaction));
1056 sa.sa_handler = signal_cancel;
1057 sigaction(SIGINT, &sa, 0);
1058 sigaction(SIGTERM, &sa, 0);
1059 #ifdef SA_RESTART
1060 sa.sa_flags = SA_RESTART;
1061 #endif
1062 sa.sa_handler = signal_progress_on;
1063 sigaction(SIGUSR1, &sa, 0);
1064 sa.sa_handler = signal_progress_off;
1065 sigaction(SIGUSR2, &sa, 0);
1066 #endif
1067
1068 /* Update our PATH to include /sbin if we need to run badblocks */
1069 if (cflag) {
1070 char *oldpath = getenv("PATH");
1071 char *newpath;
1072 int len = sizeof(PATH_SET) + 1;
1073
1074 if (oldpath)
1075 len += strlen(oldpath);
1076
1077 newpath = malloc(len);
1078 if (!newpath)
1079 fatal_error(ctx, "Couldn't malloc() newpath");
1080 strcpy(newpath, PATH_SET);
1081
1082 if (oldpath) {
1083 strcat(newpath, ":");
1084 strcat(newpath, oldpath);
1085 }
1086 putenv(newpath);
1087 }
1088 #ifdef CONFIG_JBD_DEBUG
1089 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1090 if (jbd_debug) {
1091 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1092 if (res != 1) {
1093 fprintf(stderr,
1094 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1095 jbd_debug);
1096 exit (1);
1097 }
1098 }
1099 #endif
1100 return 0;
1101
1102 sscanf_err:
1103 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1104 c, optarg);
1105 exit (1);
1106 }
1107
1108 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1109 ext2_filsys *ret_fs)
1110 {
1111 errcode_t retval;
1112
1113 *ret_fs = NULL;
1114 if (ctx->superblock && ctx->blocksize) {
1115 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1116 flags, ctx->superblock, ctx->blocksize,
1117 io_ptr, ret_fs);
1118 } else if (ctx->superblock) {
1119 int blocksize;
1120 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1121 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1122 if (*ret_fs) {
1123 ext2fs_free(*ret_fs);
1124 *ret_fs = NULL;
1125 }
1126 retval = ext2fs_open2(ctx->filesystem_name,
1127 ctx->io_options, flags,
1128 ctx->superblock, blocksize,
1129 io_ptr, ret_fs);
1130 if (!retval)
1131 break;
1132 }
1133 } else
1134 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1135 flags, 0, 0, io_ptr, ret_fs);
1136
1137 if (retval == 0) {
1138 (*ret_fs)->priv_data = ctx;
1139 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1140 "default", NULL);
1141 }
1142 return retval;
1143 }
1144
1145 static const char *my_ver_string = E2FSPROGS_VERSION;
1146 static const char *my_ver_date = E2FSPROGS_DATE;
1147
1148 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1149 {
1150 struct mmp_struct *mmp_s;
1151 unsigned int mmp_check_interval;
1152 errcode_t retval = 0;
1153 struct problem_context pctx;
1154 unsigned int wait_time = 0;
1155
1156 clear_problem_context(&pctx);
1157 if (fs->mmp_buf == NULL) {
1158 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1159 if (retval)
1160 goto check_error;
1161 }
1162
1163 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1164 if (retval)
1165 goto check_error;
1166
1167 mmp_s = fs->mmp_buf;
1168
1169 mmp_check_interval = fs->super->s_mmp_update_interval;
1170 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1171 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1172
1173 /*
1174 * If check_interval in MMP block is larger, use that instead of
1175 * check_interval from the superblock.
1176 */
1177 if (mmp_s->mmp_check_interval > mmp_check_interval)
1178 mmp_check_interval = mmp_s->mmp_check_interval;
1179
1180 wait_time = mmp_check_interval * 2 + 1;
1181
1182 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1183 retval = 0;
1184 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1185 retval = EXT2_ET_MMP_FSCK_ON;
1186 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1187 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1188
1189 if (retval)
1190 goto check_error;
1191
1192 /* Print warning if e2fck will wait for more than 20 secs. */
1193 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1194 log_out(ctx, _("MMP interval is %u seconds and total wait "
1195 "time is %u seconds. Please wait...\n"),
1196 mmp_check_interval, wait_time * 2);
1197 }
1198
1199 return 0;
1200
1201 check_error:
1202
1203 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1204 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1205 fs->super->s_mmp_block = 0;
1206 ext2fs_mark_super_dirty(fs);
1207 retval = 0;
1208 }
1209 } else if (retval == EXT2_ET_MMP_FAILED) {
1210 com_err(ctx->program_name, retval, "%s",
1211 _("while checking MMP block"));
1212 dump_mmp_msg(fs->mmp_buf, NULL);
1213 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1214 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1215 com_err(ctx->program_name, retval, "%s",
1216 _("while checking MMP block"));
1217 dump_mmp_msg(fs->mmp_buf,
1218 _("If you are sure the filesystem is not "
1219 "in use on any node, run:\n"
1220 "'tune2fs -f -E clear_mmp {device}'\n"));
1221 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1222 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1223 ext2fs_mmp_clear(fs);
1224 retval = 0;
1225 }
1226 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1227 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1228 ext2fs_mmp_clear(fs);
1229 retval = 0;
1230 }
1231 } else
1232 com_err(ctx->program_name, retval, "%s",
1233 _("while reading MMP block"));
1234 return retval;
1235 }
1236
1237 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1238 {
1239 errcode_t retval = ENOMEM;
1240 char *tdb_dir = NULL, *tdb_file = NULL;
1241 char *dev_name, *tmp_name;
1242 int free_tdb_dir = 0;
1243
1244 /* (re)open a specific undo file */
1245 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1246 retval = set_undo_io_backing_manager(*io_ptr);
1247 if (retval)
1248 goto err;
1249 *io_ptr = undo_io_manager;
1250 retval = set_undo_io_backup_file(ctx->undo_file);
1251 if (retval)
1252 goto err;
1253 printf(_("Overwriting existing filesystem; this can be undone "
1254 "using the command:\n"
1255 " e2undo %s %s\n\n"),
1256 ctx->undo_file, ctx->filesystem_name);
1257 return retval;
1258 }
1259
1260 /*
1261 * Configuration via a conf file would be
1262 * nice
1263 */
1264 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1265 if (!tdb_dir) {
1266 profile_get_string(ctx->profile, "defaults",
1267 "undo_dir", 0, "/var/lib/e2fsprogs",
1268 &tdb_dir);
1269 free_tdb_dir = 1;
1270 }
1271
1272 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1273 access(tdb_dir, W_OK)) {
1274 if (free_tdb_dir)
1275 free(tdb_dir);
1276 return 0;
1277 }
1278
1279 tmp_name = strdup(ctx->filesystem_name);
1280 if (!tmp_name)
1281 goto errout;
1282 dev_name = basename(tmp_name);
1283 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1284 if (!tdb_file) {
1285 free(tmp_name);
1286 goto errout;
1287 }
1288 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1289 free(tmp_name);
1290
1291 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1292 retval = errno;
1293 com_err(ctx->program_name, retval,
1294 _("while trying to delete %s"), tdb_file);
1295 goto errout;
1296 }
1297
1298 retval = set_undo_io_backing_manager(*io_ptr);
1299 if (retval)
1300 goto errout;
1301 *io_ptr = undo_io_manager;
1302 retval = set_undo_io_backup_file(tdb_file);
1303 if (retval)
1304 goto errout;
1305 printf(_("Overwriting existing filesystem; this can be undone "
1306 "using the command:\n"
1307 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1308
1309 if (free_tdb_dir)
1310 free(tdb_dir);
1311 free(tdb_file);
1312 return 0;
1313
1314 errout:
1315 if (free_tdb_dir)
1316 free(tdb_dir);
1317 free(tdb_file);
1318 err:
1319 com_err(ctx->program_name, retval, "%s",
1320 _("while trying to setup undo file\n"));
1321 return retval;
1322 }
1323
1324 int main (int argc, char *argv[])
1325 {
1326 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1327 int exit_value = FSCK_OK;
1328 ext2_filsys fs = 0;
1329 io_manager io_ptr;
1330 struct ext2_super_block *sb;
1331 const char *lib_ver_date;
1332 int my_ver, lib_ver;
1333 e2fsck_t ctx;
1334 blk64_t orig_superblock;
1335 struct problem_context pctx;
1336 int flags, run_result, was_changed;
1337 int journal_size;
1338 int sysval, sys_page_size = 4096;
1339 int old_bitmaps;
1340 __u32 features[3];
1341 char *cp;
1342 unsigned int qtype_bits = 0;
1343 enum quota_type qtype;
1344
1345 clear_problem_context(&pctx);
1346 sigcatcher_setup();
1347 #ifdef MTRACE
1348 mtrace();
1349 #endif
1350 #ifdef MCHECK
1351 mcheck(0);
1352 #endif
1353 #ifdef ENABLE_NLS
1354 setlocale(LC_MESSAGES, "");
1355 setlocale(LC_CTYPE, "");
1356 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1357 textdomain(NLS_CAT_NAME);
1358 set_com_err_gettext(gettext);
1359 #endif
1360 my_ver = ext2fs_parse_version_string(my_ver_string);
1361 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1362 if (my_ver > lib_ver) {
1363 fprintf( stderr, "%s",
1364 _("Error: ext2fs library version out of date!\n"));
1365 show_version_only++;
1366 }
1367
1368 retval = PRS(argc, argv, &ctx);
1369 if (retval) {
1370 com_err("e2fsck", retval, "%s",
1371 _("while trying to initialize program"));
1372 exit(FSCK_ERROR);
1373 }
1374 reserve_stdio_fds();
1375
1376 set_up_logging(ctx);
1377 if (ctx->logf) {
1378 int i;
1379 fputs("E2fsck run: ", ctx->logf);
1380 for (i = 0; i < argc; i++) {
1381 if (i)
1382 fputc(' ', ctx->logf);
1383 fputs(argv[i], ctx->logf);
1384 }
1385 fputc('\n', ctx->logf);
1386 }
1387
1388 init_resource_track(&ctx->global_rtrack, NULL);
1389 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1390 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1391 my_ver_date);
1392
1393 if (show_version_only) {
1394 log_err(ctx, _("\tUsing %s, %s\n"),
1395 error_message(EXT2_ET_BASE), lib_ver_date);
1396 exit(FSCK_OK);
1397 }
1398
1399 check_mount(ctx);
1400
1401 if (!(ctx->options & E2F_OPT_PREEN) &&
1402 !(ctx->options & E2F_OPT_NO) &&
1403 !(ctx->options & E2F_OPT_YES)) {
1404 if (!ctx->interactive)
1405 fatal_error(ctx,
1406 _("need terminal for interactive repairs"));
1407 }
1408 ctx->superblock = ctx->use_superblock;
1409
1410 flags = EXT2_FLAG_SKIP_MMP;
1411 restart:
1412 #ifdef CONFIG_TESTIO_DEBUG
1413 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1414 io_ptr = test_io_manager;
1415 test_io_backing_manager = unix_io_manager;
1416 } else
1417 #endif
1418 io_ptr = unix_io_manager;
1419 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1420 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1421 &old_bitmaps);
1422 if (!old_bitmaps)
1423 flags |= EXT2_FLAG_64BITS;
1424 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1425 flags |= EXT2_FLAG_RW;
1426 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1427 ctx->mount_flags & EXT2_MF_READONLY))
1428 flags |= EXT2_FLAG_EXCLUSIVE;
1429 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1430 (ctx->options & E2F_OPT_FORCE))
1431 flags &= ~EXT2_FLAG_EXCLUSIVE;
1432 }
1433
1434 if (ctx->undo_file) {
1435 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1436 if (retval)
1437 exit(FSCK_ERROR);
1438 }
1439
1440 ctx->openfs_flags = flags;
1441 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1442
1443 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1444 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1445 ((retval == EXT2_ET_BAD_MAGIC) ||
1446 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1447 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1448 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1449 if (retval) {
1450 pctx.errcode = retval;
1451 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1452 }
1453 if (retval2) {
1454 pctx.errcode = retval2;
1455 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1456 }
1457 pctx.errcode = 0;
1458 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1459 retval = retval2;
1460 goto failure;
1461 }
1462 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1463 ext2fs_free(fs);
1464 fs = NULL;
1465 }
1466 if (!fs || (fs->group_desc_count > 1)) {
1467 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1468 ctx->program_name,
1469 retval ? _("Superblock invalid,") :
1470 _("Group descriptors look bad..."));
1471 orig_superblock = ctx->superblock;
1472 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1473 if (fs)
1474 ext2fs_close_free(&fs);
1475 orig_retval = retval;
1476 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1477 if ((orig_retval == 0) && retval != 0) {
1478 if (fs)
1479 ext2fs_close_free(&fs);
1480 log_out(ctx, _("%s: %s while using the "
1481 "backup blocks"),
1482 ctx->program_name,
1483 error_message(retval));
1484 log_out(ctx, _("%s: going back to original "
1485 "superblock\n"),
1486 ctx->program_name);
1487 ctx->superblock = orig_superblock;
1488 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1489 }
1490 }
1491 }
1492 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1493 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1494 fs && fs->super) {
1495 sb = fs->super;
1496 features[0] = (sb->s_feature_compat &
1497 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1498 features[1] = (sb->s_feature_incompat &
1499 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1500 features[2] = (sb->s_feature_ro_compat &
1501 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1502 if (features[0] || features[1] || features[2])
1503 goto print_unsupp_features;
1504 }
1505 failure:
1506 if (retval) {
1507 if (orig_retval)
1508 retval = orig_retval;
1509 com_err(ctx->program_name, retval, _("while trying to open %s"),
1510 ctx->filesystem_name);
1511 if (retval == EXT2_ET_REV_TOO_HIGH) {
1512 log_out(ctx, "%s",
1513 _("The filesystem revision is apparently "
1514 "too high for this version of e2fsck.\n"
1515 "(Or the filesystem superblock "
1516 "is corrupt)\n\n"));
1517 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1518 } else if (retval == EXT2_ET_SHORT_READ)
1519 log_out(ctx, "%s",
1520 _("Could this be a zero-length partition?\n"));
1521 else if ((retval == EPERM) || (retval == EACCES))
1522 log_out(ctx, _("You must have %s access to the "
1523 "filesystem or be root\n"),
1524 (ctx->options & E2F_OPT_READONLY) ?
1525 "r/o" : "r/w");
1526 else if (retval == ENXIO)
1527 log_out(ctx, "%s",
1528 _("Possibly non-existent or swap device?\n"));
1529 else if (retval == EBUSY)
1530 log_out(ctx, "%s", _("Filesystem mounted or opened "
1531 "exclusively by another program?\n"));
1532 else if (retval == ENOENT)
1533 log_out(ctx, "%s",
1534 _("Possibly non-existent device?\n"));
1535 #ifdef EROFS
1536 else if (retval == EROFS)
1537 log_out(ctx, "%s", _("Disk write-protected; use the "
1538 "-n option to do a read-only\n"
1539 "check of the device.\n"));
1540 #endif
1541 else {
1542 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1543 if (retval == EXT2_ET_BAD_MAGIC)
1544 check_plausibility(ctx->filesystem_name,
1545 CHECK_FS_EXIST, NULL);
1546 }
1547 fatal_error(ctx, 0);
1548 }
1549 /*
1550 * We only update the master superblock because (a) paranoia;
1551 * we don't want to corrupt the backup superblocks, and (b) we
1552 * don't need to update the mount count and last checked
1553 * fields in the backup superblock (the kernel doesn't update
1554 * the backup superblocks anyway). With newer versions of the
1555 * library this flag is set by ext2fs_open2(), but we set this
1556 * here just to be sure. (No, we don't support e2fsck running
1557 * with some other libext2fs than the one that it was shipped
1558 * with, but just in case....)
1559 */
1560 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1561
1562 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1563 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1564 int need_restart = 0;
1565
1566 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1567 blocksize,
1568 &ctx->num_blocks);
1569 /*
1570 * The floppy driver refuses to allow anyone else to
1571 * open the device if has been opened with O_EXCL;
1572 * this is unlike other block device drivers in Linux.
1573 * To handle this, we close the filesystem and then
1574 * reopen the filesystem after we get the device size.
1575 */
1576 if (pctx.errcode == EBUSY) {
1577 ext2fs_close_free(&fs);
1578 need_restart++;
1579 pctx.errcode =
1580 ext2fs_get_device_size2(ctx->filesystem_name,
1581 blocksize,
1582 &ctx->num_blocks);
1583 }
1584 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1585 ctx->num_blocks = 0;
1586 else if (pctx.errcode) {
1587 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1588 ctx->flags |= E2F_FLAG_ABORT;
1589 fatal_error(ctx, 0);
1590 }
1591 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1592 if (need_restart)
1593 goto restart;
1594 }
1595
1596 ctx->fs = fs;
1597 fs->now = ctx->now;
1598 sb = fs->super;
1599
1600 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1601 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1602 _("while trying to open %s"),
1603 ctx->filesystem_name);
1604 get_newer:
1605 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1606 }
1607
1608 /*
1609 * Set the device name, which is used whenever we print error
1610 * or informational messages to the user.
1611 */
1612 if (ctx->device_name == 0 &&
1613 (sb->s_volume_name[0] != 0)) {
1614 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1615 sizeof(sb->s_volume_name));
1616 }
1617 if (ctx->device_name == 0)
1618 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1619 for (cp = ctx->device_name; *cp; cp++)
1620 if (isspace(*cp) || *cp == ':')
1621 *cp = '_';
1622
1623 ehandler_init(fs->io);
1624
1625 if (ext2fs_has_feature_mmp(fs->super) &&
1626 (flags & EXT2_FLAG_SKIP_MMP)) {
1627 if (e2fsck_check_mmp(fs, ctx))
1628 fatal_error(ctx, 0);
1629
1630 /*
1631 * Restart in order to reopen fs but this time start mmp.
1632 */
1633 ext2fs_close_free(&ctx->fs);
1634 flags &= ~EXT2_FLAG_SKIP_MMP;
1635 goto restart;
1636 }
1637
1638 if (ctx->logf)
1639 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1640 e2p_uuid2str(sb->s_uuid));
1641
1642 /*
1643 * Make sure the ext3 superblock fields are consistent.
1644 */
1645 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1646 retval = e2fsck_check_ext3_journal(ctx);
1647 if (retval) {
1648 com_err(ctx->program_name, retval,
1649 _("while checking journal for %s"),
1650 ctx->device_name);
1651 fatal_error(ctx, 0);
1652 }
1653 }
1654
1655 /*
1656 * Check to see if we need to do ext3-style recovery. If so,
1657 * do it, and then restart the fsck.
1658 */
1659 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1660 if (ctx->options & E2F_OPT_READONLY) {
1661 log_out(ctx, "%s",
1662 _("Warning: skipping journal recovery because "
1663 "doing a read-only filesystem check.\n"));
1664 io_channel_flush(ctx->fs->io);
1665 } else {
1666 if (ctx->flags & E2F_FLAG_RESTARTED) {
1667 /*
1668 * Whoops, we attempted to run the
1669 * journal twice. This should never
1670 * happen, unless the hardware or
1671 * device driver is being bogus.
1672 */
1673 com_err(ctx->program_name, 0,
1674 _("unable to set superblock flags "
1675 "on %s\n"), ctx->device_name);
1676 fatal_error(ctx, 0);
1677 }
1678 retval = e2fsck_run_ext3_journal(ctx);
1679 if (retval == EFSBADCRC) {
1680 log_out(ctx, _("Journal checksum error "
1681 "found in %s\n"),
1682 ctx->device_name);
1683 } else if (retval == EFSCORRUPTED) {
1684 log_out(ctx, _("Journal corrupted in %s\n"),
1685 ctx->device_name);
1686 } else if (retval) {
1687 com_err(ctx->program_name, retval,
1688 _("while recovering journal of %s"),
1689 ctx->device_name);
1690 }
1691 ext2fs_close_free(&ctx->fs);
1692 ctx->flags |= E2F_FLAG_RESTARTED;
1693 goto restart;
1694 }
1695 }
1696
1697 /*
1698 * Check for compatibility with the feature sets. We need to
1699 * be more stringent than ext2fs_open().
1700 */
1701 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1702 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1703 features[2] = (sb->s_feature_ro_compat &
1704 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1705 print_unsupp_features:
1706 if (features[0] || features[1] || features[2]) {
1707 int i, j;
1708 __u32 *mask = features, m;
1709
1710 log_err(ctx, _("%s has unsupported feature(s):"),
1711 ctx->filesystem_name);
1712
1713 for (i=0; i <3; i++,mask++) {
1714 for (j=0,m=1; j < 32; j++, m<<=1) {
1715 if (*mask & m)
1716 log_err(ctx, " %s",
1717 e2p_feature2string(i, m));
1718 }
1719 }
1720 log_err(ctx, "\n");
1721 goto get_newer;
1722 }
1723
1724 /*
1725 * If the user specified a specific superblock, presumably the
1726 * master superblock has been trashed. So we mark the
1727 * superblock as dirty, so it can be written out.
1728 */
1729 if (ctx->superblock &&
1730 !(ctx->options & E2F_OPT_READONLY))
1731 ext2fs_mark_super_dirty(fs);
1732
1733 /*
1734 * Calculate the number of filesystem blocks per pagesize. If
1735 * fs->blocksize > page_size, set the number of blocks per
1736 * pagesize to 1 to avoid division by zero errors.
1737 */
1738 #ifdef _SC_PAGESIZE
1739 sysval = sysconf(_SC_PAGESIZE);
1740 if (sysval > 0)
1741 sys_page_size = sysval;
1742 #endif /* _SC_PAGESIZE */
1743 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1744 if (ctx->blocks_per_page == 0)
1745 ctx->blocks_per_page = 1;
1746
1747 if (ctx->superblock)
1748 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1749 ext2fs_mark_valid(fs);
1750 check_super_block(ctx);
1751 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1752 fatal_error(ctx, 0);
1753 check_if_skip(ctx);
1754 check_resize_inode(ctx);
1755 if (bad_blocks_file)
1756 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1757 else if (cflag)
1758 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1759 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1760 fatal_error(ctx, 0);
1761
1762 /*
1763 * Mark the system as valid, 'til proven otherwise
1764 */
1765 ext2fs_mark_valid(fs);
1766
1767 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1768 if (retval) {
1769 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1770 ctx->program_name, error_message(retval));
1771 preenhalt(ctx);
1772 log_out(ctx, "%s", _("This doesn't bode well, "
1773 "but we'll try to go on...\n"));
1774 }
1775
1776 /*
1777 * Save the journal size in megabytes.
1778 * Try and use the journal size from the backup else let e2fsck
1779 * find the default journal size.
1780 */
1781 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1782 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1783 (sb->s_jnl_blocks[16] >> 20);
1784 else
1785 journal_size = -1;
1786
1787 if (ext2fs_has_feature_quota(sb)) {
1788 /* Quotas were enabled. Do quota accounting during fsck. */
1789 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1790 if (*quota_sb_inump(sb, qtype) != 0)
1791 qtype_bits |= 1 << qtype;
1792 }
1793
1794 quota_init_context(&ctx->qctx, ctx->fs, qtype_bits);
1795 }
1796
1797 run_result = e2fsck_run(ctx);
1798 e2fsck_clear_progbar(ctx);
1799
1800 if (!ctx->invalid_bitmaps &&
1801 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1802 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1803 if (journal_size < 1024)
1804 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1805 if (journal_size < 0) {
1806 ext2fs_clear_feature_journal(fs->super);
1807 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1808 log_out(ctx, "%s: Couldn't determine "
1809 "journal size\n", ctx->program_name);
1810 goto no_journal;
1811 }
1812 log_out(ctx, _("Creating journal (%d blocks): "),
1813 journal_size);
1814 fflush(stdout);
1815 retval = ext2fs_add_journal_inode(fs,
1816 journal_size, 0);
1817 if (retval) {
1818 log_out(ctx, "%s: while trying to create "
1819 "journal\n", error_message(retval));
1820 goto no_journal;
1821 }
1822 log_out(ctx, "%s", _(" Done.\n"));
1823 log_out(ctx, "%s",
1824 _("\n*** journal has been regenerated ***\n"));
1825 }
1826 }
1827 no_journal:
1828
1829 if (run_result & E2F_FLAG_ABORT) {
1830 fatal_error(ctx, _("aborted"));
1831 } else if (run_result & E2F_FLAG_CANCEL) {
1832 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1833 ctx->device_name : ctx->filesystem_name);
1834 exit_value |= FSCK_CANCELED;
1835 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1836 int needs_writeout;
1837
1838 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1839 if (((1 << qtype) & qtype_bits) == 0)
1840 continue;
1841 needs_writeout = 0;
1842 pctx.num = qtype;
1843 retval = quota_compare_and_update(ctx->qctx, qtype,
1844 &needs_writeout);
1845 if ((retval || needs_writeout) &&
1846 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx))
1847 quota_write_inode(ctx->qctx, 1 << qtype);
1848 }
1849 quota_release_context(&ctx->qctx);
1850 }
1851
1852 if (run_result == E2F_FLAG_RESTART) {
1853 log_out(ctx, "%s",
1854 _("Restarting e2fsck from the beginning...\n"));
1855 retval = e2fsck_reset_context(ctx);
1856 if (retval) {
1857 com_err(ctx->program_name, retval, "%s",
1858 _("while resetting context"));
1859 fatal_error(ctx, 0);
1860 }
1861 ext2fs_close_free(&ctx->fs);
1862 goto restart;
1863 }
1864
1865 #ifdef MTRACE
1866 mtrace_print("Cleanup");
1867 #endif
1868 was_changed = ext2fs_test_changed(fs);
1869 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1870 !(ctx->options & E2F_OPT_READONLY)) {
1871 if (ext2fs_test_valid(fs)) {
1872 if (!(sb->s_state & EXT2_VALID_FS))
1873 exit_value |= FSCK_NONDESTRUCT;
1874 sb->s_state = EXT2_VALID_FS;
1875 if (check_backup_super_block(ctx))
1876 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1877 } else
1878 sb->s_state &= ~EXT2_VALID_FS;
1879 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1880 sb->s_lastcheck = ctx->now;
1881 sb->s_mnt_count = 0;
1882 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1883 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1884 if (pctx.errcode)
1885 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1886 ext2fs_mark_super_dirty(fs);
1887 }
1888
1889 e2fsck_write_bitmaps(ctx);
1890 if (fs->flags & EXT2_FLAG_DIRTY) {
1891 pctx.errcode = ext2fs_flush(ctx->fs);
1892 if (pctx.errcode)
1893 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1894 }
1895 pctx.errcode = io_channel_flush(ctx->fs->io);
1896 if (pctx.errcode)
1897 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1898
1899 if (was_changed) {
1900 exit_value |= FSCK_NONDESTRUCT;
1901 if (!(ctx->options & E2F_OPT_PREEN))
1902 log_out(ctx, _("\n%s: ***** FILE SYSTEM WAS "
1903 "MODIFIED *****\n"),
1904 ctx->device_name);
1905 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1906 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
1907 ctx->device_name);
1908 exit_value |= FSCK_REBOOT;
1909 }
1910 }
1911 if (!ext2fs_test_valid(fs) ||
1912 ((exit_value & FSCK_CANCELED) &&
1913 (sb->s_state & EXT2_ERROR_FS))) {
1914 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
1915 "errors **********\n\n"), ctx->device_name);
1916 exit_value |= FSCK_UNCORRECTED;
1917 exit_value &= ~FSCK_NONDESTRUCT;
1918 }
1919 if (exit_value & FSCK_CANCELED) {
1920 int allow_cancellation;
1921
1922 profile_get_boolean(ctx->profile, "options",
1923 "allow_cancellation", 0, 0,
1924 &allow_cancellation);
1925 exit_value &= ~FSCK_NONDESTRUCT;
1926 if (allow_cancellation && ext2fs_test_valid(fs) &&
1927 (sb->s_state & EXT2_VALID_FS) &&
1928 !(sb->s_state & EXT2_ERROR_FS))
1929 exit_value = 0;
1930 } else
1931 show_stats(ctx);
1932
1933 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
1934
1935 ext2fs_close_free(&ctx->fs);
1936 free(ctx->journal_name);
1937
1938 e2fsck_free_context(ctx);
1939 remove_error_table(&et_ext2_error_table);
1940 remove_error_table(&et_prof_error_table);
1941 return exit_value;
1942 }
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