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[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 "e2fsck.h"
54 #include "problem.h"
55 #include "../version.h"
56 #include "../misc/plausible.h"
57
58 /* Command line options */
59 static int cflag; /* check disk */
60 static int show_version_only;
61 static int verbose;
62
63 static int replace_bad_blocks;
64 static int keep_bad_blocks;
65 static char *bad_blocks_file;
66
67 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
68
69 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jfs-debug */
70 int journal_enable_debug = -1;
71 #endif
72
73 static void usage(e2fsck_t ctx)
74 {
75 fprintf(stderr,
76 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n"
77 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
78 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
79 "\t\t[-E extended-options] [-z undo_file] device\n"),
80 ctx->program_name);
81
82 fprintf(stderr, "%s", _("\nEmergency help:\n"
83 " -p Automatic repair (no questions)\n"
84 " -n Make no changes to the filesystem\n"
85 " -y Assume \"yes\" to all questions\n"
86 " -c Check for bad blocks and add them to the badblock list\n"
87 " -f Force checking even if filesystem is marked clean\n"));
88 fprintf(stderr, "%s", _(""
89 " -v Be verbose\n"
90 " -b superblock Use alternative superblock\n"
91 " -B blocksize Force blocksize when looking for superblock\n"
92 " -j external_journal Set location of the external journal\n"
93 " -l bad_blocks_file Add to badblocks list\n"
94 " -L bad_blocks_file Set badblocks list\n"
95 " -z undo_file Create an undo file\n"
96 ));
97
98 exit(FSCK_USAGE);
99 }
100
101 static void show_stats(e2fsck_t ctx)
102 {
103 ext2_filsys fs = ctx->fs;
104 ext2_ino_t inodes, inodes_used;
105 blk64_t blocks, blocks_used;
106 unsigned int dir_links;
107 unsigned int num_files, num_links;
108 __u32 *mask, m;
109 int frag_percent_file, frag_percent_dir, frag_percent_total;
110 int i, j, printed = 0;
111
112 dir_links = 2 * ctx->fs_directory_count - 1;
113 num_files = ctx->fs_total_count - dir_links;
114 num_links = ctx->fs_links_count - dir_links;
115 inodes = fs->super->s_inodes_count;
116 inodes_used = (fs->super->s_inodes_count -
117 fs->super->s_free_inodes_count);
118 blocks = ext2fs_blocks_count(fs->super);
119 blocks_used = (ext2fs_blocks_count(fs->super) -
120 ext2fs_free_blocks_count(fs->super));
121
122 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
123 frag_percent_file = (frag_percent_file + 5) / 10;
124
125 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
126 frag_percent_dir = (frag_percent_dir + 5) / 10;
127
128 frag_percent_total = ((10000 * (ctx->fs_fragmented +
129 ctx->fs_fragmented_dir))
130 / inodes_used);
131 frag_percent_total = (frag_percent_total + 5) / 10;
132
133 if (!verbose) {
134 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
135 "%llu/%llu blocks\n"),
136 ctx->device_name, inodes_used, inodes,
137 frag_percent_total / 10, frag_percent_total % 10,
138 blocks_used, blocks);
139 return;
140 }
141 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
142 &i);
143 if (verbose && i) {
144 log_out(ctx, "\nFilesystem features:");
145 mask = &ctx->fs->super->s_feature_compat;
146 for (i = 0; i < 3; i++, mask++) {
147 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
148 if (*mask & m) {
149 log_out(ctx, " %s",
150 e2p_feature2string(i, m));
151 printed++;
152 }
153 }
154 }
155 if (printed == 0)
156 log_out(ctx, " (none)");
157 log_out(ctx, "\n");
158 }
159
160 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
161 "\n%12u inodes used (%2.2f%%, out of %u)\n",
162 inodes_used), inodes_used,
163 100.0 * inodes_used / inodes, inodes);
164 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
165 "%12u non-contiguous files (%0d.%d%%)\n",
166 ctx->fs_fragmented),
167 ctx->fs_fragmented, frag_percent_file / 10,
168 frag_percent_file % 10);
169 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
170 "%12u non-contiguous directories (%0d.%d%%)\n",
171 ctx->fs_fragmented_dir),
172 ctx->fs_fragmented_dir, frag_percent_dir / 10,
173 frag_percent_dir % 10);
174 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
175 "%u/%u/%u\n"),
176 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
177
178 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
179 if (ctx->extent_depth_count[j])
180 break;
181 if (++j) {
182 log_out(ctx, "%s", _(" Extent depth histogram: "));
183 for (i=0; i < j; i++) {
184 if (i)
185 fputc('/', stdout);
186 log_out(ctx, "%u", ctx->extent_depth_count[i]);
187 }
188 log_out(ctx, "\n");
189 }
190
191 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
192 "%12llu blocks used (%2.2f%%, out of %llu)\n",
193 blocks_used),
194 blocks_used, 100.0 * blocks_used / blocks, blocks);
195 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
196 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
197 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
198 ctx->large_files), ctx->large_files);
199 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
200 ctx->fs_regular_count), ctx->fs_regular_count);
201 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
202 ctx->fs_directory_count), ctx->fs_directory_count);
203 log_out(ctx, P_("%12u character device file\n",
204 "%12u character device files\n", ctx->fs_chardev_count),
205 ctx->fs_chardev_count);
206 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
207 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
208 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
209 ctx->fs_fifo_count);
210 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
211 ctx->fs_links_count - dir_links);
212 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
213 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
214 log_out(ctx, P_(" (%u fast symbolic link)\n",
215 " (%u fast symbolic links)\n",
216 ctx->fs_fast_symlinks_count),
217 ctx->fs_fast_symlinks_count);
218 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
219 ctx->fs_sockets_count),
220 ctx->fs_sockets_count);
221 log_out(ctx, "------------\n");
222 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
223 num_files);
224 }
225
226 static void check_mount(e2fsck_t ctx)
227 {
228 errcode_t retval;
229 int cont;
230
231 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
232 &ctx->mount_flags);
233 if (retval) {
234 com_err("ext2fs_check_if_mount", retval,
235 _("while determining whether %s is mounted."),
236 ctx->filesystem_name);
237 return;
238 }
239
240 /*
241 * If the filesystem isn't mounted, or it's the root
242 * filesystem and it's mounted read-only, and we're not doing
243 * a read/write check, then everything's fine.
244 */
245 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
246 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
247 (ctx->mount_flags & EXT2_MF_READONLY) &&
248 !(ctx->options & E2F_OPT_WRITECHECK)))
249 return;
250
251 if (((ctx->options & E2F_OPT_READONLY) ||
252 ((ctx->options & E2F_OPT_FORCE) &&
253 (ctx->mount_flags & EXT2_MF_READONLY))) &&
254 !(ctx->options & E2F_OPT_WRITECHECK)) {
255 if (ctx->mount_flags & EXT2_MF_MOUNTED)
256 log_out(ctx, _("Warning! %s is mounted.\n"),
257 ctx->filesystem_name);
258 else
259 log_out(ctx, _("Warning! %s is in use.\n"),
260 ctx->filesystem_name);
261 return;
262 }
263
264 if (ctx->mount_flags & EXT2_MF_MOUNTED)
265 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
266 else
267 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
268 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
269 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
270 puts("\007\007\007\007");
271 log_out(ctx, "%s", _("\n\nWARNING!!! "
272 "The filesystem is mounted. "
273 "If you continue you ***WILL***\n"
274 "cause ***SEVERE*** filesystem damage.\n\n"));
275 puts("\007\007\007");
276 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
277 if (!cont) {
278 printf("%s", _("check aborted.\n"));
279 exit (0);
280 }
281 return;
282 }
283
284 static int is_on_batt(void)
285 {
286 FILE *f;
287 DIR *d;
288 char tmp[80], tmp2[80], fname[80];
289 unsigned int acflag;
290 struct dirent* de;
291
292 f = fopen("/sys/class/power_supply/AC/online", "r");
293 if (f) {
294 if (fscanf(f, "%u\n", &acflag) == 1) {
295 fclose(f);
296 return (!acflag);
297 }
298 fclose(f);
299 }
300 f = fopen("/proc/apm", "r");
301 if (f) {
302 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
303 acflag = 1;
304 fclose(f);
305 return (acflag != 1);
306 }
307 d = opendir("/proc/acpi/ac_adapter");
308 if (d) {
309 while ((de=readdir(d)) != NULL) {
310 if (!strncmp(".", de->d_name, 1))
311 continue;
312 snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
313 de->d_name);
314 f = fopen(fname, "r");
315 if (!f)
316 continue;
317 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
318 tmp[0] = 0;
319 fclose(f);
320 if (strncmp(tmp, "off-line", 8) == 0) {
321 closedir(d);
322 return 1;
323 }
324 }
325 closedir(d);
326 }
327 return 0;
328 }
329
330 /*
331 * This routine checks to see if a filesystem can be skipped; if so,
332 * it will exit with E2FSCK_OK. Under some conditions it will print a
333 * message explaining why a check is being forced.
334 */
335 static void check_if_skip(e2fsck_t ctx)
336 {
337 ext2_filsys fs = ctx->fs;
338 struct problem_context pctx;
339 const char *reason = NULL;
340 unsigned int reason_arg = 0;
341 long next_check;
342 int batt = is_on_batt();
343 int defer_check_on_battery;
344 int broken_system_clock;
345 time_t lastcheck;
346
347 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
348 return;
349
350 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
351 0, 0, &broken_system_clock);
352 if (ctx->flags & E2F_FLAG_TIME_INSANE)
353 broken_system_clock = 1;
354 profile_get_boolean(ctx->profile, "options",
355 "defer_check_on_battery", 0, 1,
356 &defer_check_on_battery);
357 if (!defer_check_on_battery)
358 batt = 0;
359
360 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
361 return;
362
363 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
364 goto skip;
365
366 lastcheck = fs->super->s_lastcheck;
367 if (lastcheck > ctx->now)
368 lastcheck -= ctx->time_fudge;
369 if ((fs->super->s_state & EXT2_ERROR_FS) ||
370 !ext2fs_test_valid(fs))
371 reason = _(" contains a file system with errors");
372 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
373 reason = _(" was not cleanly unmounted");
374 else if (check_backup_super_block(ctx))
375 reason = _(" primary superblock features different from backup");
376 else if ((fs->super->s_max_mnt_count > 0) &&
377 (fs->super->s_mnt_count >=
378 (unsigned) fs->super->s_max_mnt_count)) {
379 reason = _(" has been mounted %u times without being checked");
380 reason_arg = fs->super->s_mnt_count;
381 if (batt && (fs->super->s_mnt_count <
382 (unsigned) fs->super->s_max_mnt_count*2))
383 reason = 0;
384 } else if (!broken_system_clock && fs->super->s_checkinterval &&
385 (ctx->now < lastcheck)) {
386 reason = _(" has filesystem last checked time in the future");
387 if (batt)
388 reason = 0;
389 } else if (!broken_system_clock && fs->super->s_checkinterval &&
390 ((ctx->now - lastcheck) >=
391 ((time_t) fs->super->s_checkinterval))) {
392 reason = _(" has gone %u days without being checked");
393 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
394 if (batt && ((ctx->now - fs->super->s_lastcheck) <
395 fs->super->s_checkinterval*2))
396 reason = 0;
397 }
398 if (reason) {
399 log_out(ctx, "%s", ctx->device_name);
400 log_out(ctx, reason, reason_arg);
401 log_out(ctx, "%s", _(", check forced.\n"));
402 return;
403 }
404
405 /*
406 * Update the global counts from the block group counts. This
407 * is needed since modern kernels don't update the global
408 * counts so as to avoid locking the entire file system. So
409 * if the filesystem is not unmounted cleanly, the global
410 * counts may not be accurate. Update them here if we can,
411 * for the benefit of users who might examine the file system
412 * using dumpe2fs. (This is for cosmetic reasons only.)
413 */
414 clear_problem_context(&pctx);
415 pctx.ino = fs->super->s_free_inodes_count;
416 pctx.ino2 = ctx->free_inodes;
417 if ((pctx.ino != pctx.ino2) &&
418 !(ctx->options & E2F_OPT_READONLY) &&
419 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
420 fs->super->s_free_inodes_count = ctx->free_inodes;
421 ext2fs_mark_super_dirty(fs);
422 }
423 clear_problem_context(&pctx);
424 pctx.blk = ext2fs_free_blocks_count(fs->super);
425 pctx.blk2 = ctx->free_blocks;
426 if ((pctx.blk != pctx.blk2) &&
427 !(ctx->options & E2F_OPT_READONLY) &&
428 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
429 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
430 ext2fs_mark_super_dirty(fs);
431 }
432
433 /* Print the summary message when we're skipping a full check */
434 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
435 ctx->device_name,
436 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
437 fs->super->s_inodes_count,
438 ext2fs_blocks_count(fs->super) -
439 ext2fs_free_blocks_count(fs->super),
440 ext2fs_blocks_count(fs->super));
441 next_check = 100000;
442 if (fs->super->s_max_mnt_count > 0) {
443 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
444 if (next_check <= 0)
445 next_check = 1;
446 }
447 if (!broken_system_clock && fs->super->s_checkinterval &&
448 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
449 next_check = 1;
450 if (next_check <= 5) {
451 if (next_check == 1) {
452 if (batt)
453 log_out(ctx, "%s",
454 _(" (check deferred; on battery)"));
455 else
456 log_out(ctx, "%s",
457 _(" (check after next mount)"));
458 } else
459 log_out(ctx, _(" (check in %ld mounts)"),
460 next_check);
461 }
462 log_out(ctx, "\n");
463 skip:
464 ext2fs_close_free(&ctx->fs);
465 e2fsck_free_context(ctx);
466 exit(FSCK_OK);
467 }
468
469 /*
470 * For completion notice
471 */
472 struct percent_tbl {
473 int max_pass;
474 int table[32];
475 };
476 static struct percent_tbl e2fsck_tbl = {
477 5, { 0, 70, 90, 92, 95, 100 }
478 };
479 static char bar[128], spaces[128];
480
481 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
482 int max)
483 {
484 float percent;
485
486 if (pass <= 0)
487 return 0.0;
488 if (pass > tbl->max_pass || max == 0)
489 return 100.0;
490 percent = ((float) curr) / ((float) max);
491 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
492 + tbl->table[pass-1]);
493 }
494
495 void e2fsck_clear_progbar(e2fsck_t ctx)
496 {
497 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
498 return;
499
500 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
501 ctx->stop_meta);
502 fflush(stdout);
503 ctx->flags &= ~E2F_FLAG_PROG_BAR;
504 }
505
506 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
507 unsigned int dpynum)
508 {
509 static const char spinner[] = "\\|/-";
510 int i;
511 unsigned int tick;
512 struct timeval tv;
513 int dpywidth;
514 int fixed_percent;
515
516 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
517 return 0;
518
519 /*
520 * Calculate the new progress position. If the
521 * percentage hasn't changed, then we skip out right
522 * away.
523 */
524 fixed_percent = (int) ((10 * percent) + 0.5);
525 if (ctx->progress_last_percent == fixed_percent)
526 return 0;
527 ctx->progress_last_percent = fixed_percent;
528
529 /*
530 * If we've already updated the spinner once within
531 * the last 1/8th of a second, no point doing it
532 * again.
533 */
534 gettimeofday(&tv, NULL);
535 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
536 if ((tick == ctx->progress_last_time) &&
537 (fixed_percent != 0) && (fixed_percent != 1000))
538 return 0;
539 ctx->progress_last_time = tick;
540
541 /*
542 * Advance the spinner, and note that the progress bar
543 * will be on the screen
544 */
545 ctx->progress_pos = (ctx->progress_pos+1) & 3;
546 ctx->flags |= E2F_FLAG_PROG_BAR;
547
548 dpywidth = 66 - strlen(label);
549 dpywidth = 8 * (dpywidth / 8);
550 if (dpynum)
551 dpywidth -= 8;
552
553 i = ((percent * dpywidth) + 50) / 100;
554 printf("%s%s: |%s%s", ctx->start_meta, label,
555 bar + (sizeof(bar) - (i+1)),
556 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
557 if (fixed_percent == 1000)
558 fputc('|', stdout);
559 else
560 fputc(spinner[ctx->progress_pos & 3], stdout);
561 printf(" %4.1f%% ", percent);
562 if (dpynum)
563 printf("%u\r", dpynum);
564 else
565 fputs(" \r", stdout);
566 fputs(ctx->stop_meta, stdout);
567
568 if (fixed_percent == 1000)
569 e2fsck_clear_progbar(ctx);
570 fflush(stdout);
571
572 return 0;
573 }
574
575 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
576 unsigned long cur, unsigned long max)
577 {
578 char buf[1024];
579 float percent;
580
581 if (pass == 0)
582 return 0;
583
584 if (ctx->progress_fd) {
585 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
586 pass, cur, max, ctx->device_name);
587 write_all(ctx->progress_fd, buf, strlen(buf));
588 } else {
589 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
590 e2fsck_simple_progress(ctx, ctx->device_name,
591 percent, 0);
592 }
593 return 0;
594 }
595
596 #define PATH_SET "PATH=/sbin"
597
598 /*
599 * Make sure 0,1,2 file descriptors are open, so that we don't open
600 * the filesystem using the same file descriptor as stdout or stderr.
601 */
602 static void reserve_stdio_fds(void)
603 {
604 int fd = 0;
605
606 while (fd <= 2) {
607 fd = open("/dev/null", O_RDWR);
608 if (fd < 0) {
609 fprintf(stderr, _("ERROR: Couldn't open "
610 "/dev/null (%s)\n"),
611 strerror(errno));
612 break;
613 }
614 }
615 }
616
617 #ifdef HAVE_SIGNAL_H
618 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
619 {
620 e2fsck_t ctx = e2fsck_global_ctx;
621
622 if (!ctx)
623 return;
624
625 ctx->progress = e2fsck_update_progress;
626 }
627
628 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
629 {
630 e2fsck_t ctx = e2fsck_global_ctx;
631
632 if (!ctx)
633 return;
634
635 e2fsck_clear_progbar(ctx);
636 ctx->progress = 0;
637 }
638
639 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
640 {
641 e2fsck_t ctx = e2fsck_global_ctx;
642
643 if (!ctx)
644 exit(FSCK_CANCELED);
645
646 ctx->flags |= E2F_FLAG_CANCEL;
647 }
648 #endif
649
650 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
651 {
652 char *buf, *token, *next, *p, *arg;
653 int ea_ver;
654 int extended_usage = 0;
655 unsigned long long reada_kb;
656
657 buf = string_copy(ctx, opts, 0);
658 for (token = buf; token && *token; token = next) {
659 p = strchr(token, ',');
660 next = 0;
661 if (p) {
662 *p = 0;
663 next = p+1;
664 }
665 arg = strchr(token, '=');
666 if (arg) {
667 *arg = 0;
668 arg++;
669 }
670 if (strcmp(token, "ea_ver") == 0) {
671 if (!arg) {
672 extended_usage++;
673 continue;
674 }
675 ea_ver = strtoul(arg, &p, 0);
676 if (*p ||
677 ((ea_ver != 1) && (ea_ver != 2))) {
678 fprintf(stderr, "%s",
679 _("Invalid EA version.\n"));
680 extended_usage++;
681 continue;
682 }
683 ctx->ext_attr_ver = ea_ver;
684 } else if (strcmp(token, "readahead_kb") == 0) {
685 if (!arg) {
686 extended_usage++;
687 continue;
688 }
689 reada_kb = strtoull(arg, &p, 0);
690 if (*p) {
691 fprintf(stderr, "%s",
692 _("Invalid readahead buffer size.\n"));
693 extended_usage++;
694 continue;
695 }
696 ctx->readahead_kb = reada_kb;
697 } else if (strcmp(token, "fragcheck") == 0) {
698 ctx->options |= E2F_OPT_FRAGCHECK;
699 continue;
700 } else if (strcmp(token, "journal_only") == 0) {
701 if (arg) {
702 extended_usage++;
703 continue;
704 }
705 ctx->options |= E2F_OPT_JOURNAL_ONLY;
706 } else if (strcmp(token, "discard") == 0) {
707 ctx->options |= E2F_OPT_DISCARD;
708 continue;
709 } else if (strcmp(token, "nodiscard") == 0) {
710 ctx->options &= ~E2F_OPT_DISCARD;
711 continue;
712 } else if (strcmp(token, "log_filename") == 0) {
713 if (!arg)
714 extended_usage++;
715 else
716 ctx->log_fn = string_copy(ctx, arg, 0);
717 continue;
718 } else if (strcmp(token, "bmap2extent") == 0) {
719 ctx->options |= E2F_OPT_CONVERT_BMAP;
720 continue;
721 } else if (strcmp(token, "fixes_only") == 0) {
722 ctx->options |= E2F_OPT_FIXES_ONLY;
723 continue;
724 } else {
725 fprintf(stderr, _("Unknown extended option: %s\n"),
726 token);
727 extended_usage++;
728 }
729 }
730 free(buf);
731
732 if (extended_usage) {
733 fputs(("\nExtended options are separated by commas, "
734 "and may take an argument which\n"
735 "is set off by an equals ('=') sign. "
736 "Valid extended options are:\n"), stderr);
737 fputs(("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
738 fputs(("\tfragcheck\n"), stderr);
739 fputs(("\tjournal_only\n"), stderr);
740 fputs(("\tdiscard\n"), stderr);
741 fputs(("\tnodiscard\n"), stderr);
742 fputs(("\treadahead_kb=<buffer size>\n"), stderr);
743 fputs(("\tbmap2extent\n"), stderr);
744 fputc('\n', stderr);
745 exit(1);
746 }
747 }
748
749 static void syntax_err_report(const char *filename, long err, int line_num)
750 {
751 fprintf(stderr,
752 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
753 filename, line_num, error_message(err));
754 exit(FSCK_ERROR);
755 }
756
757 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
758
759 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
760 {
761 int flush = 0;
762 int c, fd;
763 #ifdef MTRACE
764 extern void *mallwatch;
765 #endif
766 e2fsck_t ctx;
767 errcode_t retval;
768 #ifdef HAVE_SIGNAL_H
769 struct sigaction sa;
770 #endif
771 char *extended_opts = 0;
772 char *cp;
773 int res; /* result of sscanf */
774 #ifdef CONFIG_JBD_DEBUG
775 char *jbd_debug;
776 #endif
777 unsigned long long phys_mem_kb;
778
779 retval = e2fsck_allocate_context(&ctx);
780 if (retval)
781 return retval;
782
783 *ret_ctx = ctx;
784 e2fsck_global_ctx = ctx;
785
786 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
787 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
788 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
789 ctx->interactive = 1;
790 } else {
791 ctx->start_meta[0] = '\001';
792 ctx->stop_meta[0] = '\002';
793 }
794 memset(bar, '=', sizeof(bar)-1);
795 memset(spaces, ' ', sizeof(spaces)-1);
796 add_error_table(&et_ext2_error_table);
797 add_error_table(&et_prof_error_table);
798 blkid_get_cache(&ctx->blkid, NULL);
799
800 if (argc && *argv)
801 ctx->program_name = *argv;
802 else
803 ctx->program_name = "e2fsck";
804
805 phys_mem_kb = get_memory_size() / 1024;
806 ctx->readahead_kb = ~0ULL;
807 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
808 switch (c) {
809 case 'C':
810 ctx->progress = e2fsck_update_progress;
811 res = sscanf(optarg, "%d", &ctx->progress_fd);
812 if (res != 1)
813 goto sscanf_err;
814
815 if (ctx->progress_fd < 0) {
816 ctx->progress = 0;
817 ctx->progress_fd = ctx->progress_fd * -1;
818 }
819 if (!ctx->progress_fd)
820 break;
821 /* Validate the file descriptor to avoid disasters */
822 fd = dup(ctx->progress_fd);
823 if (fd < 0) {
824 fprintf(stderr,
825 _("Error validating file descriptor %d: %s\n"),
826 ctx->progress_fd,
827 error_message(errno));
828 fatal_error(ctx,
829 _("Invalid completion information file descriptor"));
830 } else
831 close(fd);
832 break;
833 case 'D':
834 ctx->options |= E2F_OPT_COMPRESS_DIRS;
835 break;
836 case 'E':
837 extended_opts = optarg;
838 break;
839 case 'p':
840 case 'a':
841 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
842 conflict_opt:
843 fatal_error(ctx,
844 _("Only one of the options -p/-a, -n or -y may be specified."));
845 }
846 ctx->options |= E2F_OPT_PREEN;
847 break;
848 case 'n':
849 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
850 goto conflict_opt;
851 ctx->options |= E2F_OPT_NO;
852 break;
853 case 'y':
854 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
855 goto conflict_opt;
856 ctx->options |= E2F_OPT_YES;
857 break;
858 case 't':
859 #ifdef RESOURCE_TRACK
860 if (ctx->options & E2F_OPT_TIME)
861 ctx->options |= E2F_OPT_TIME2;
862 else
863 ctx->options |= E2F_OPT_TIME;
864 #else
865 fprintf(stderr, _("The -t option is not "
866 "supported on this version of e2fsck.\n"));
867 #endif
868 break;
869 case 'c':
870 if (cflag++)
871 ctx->options |= E2F_OPT_WRITECHECK;
872 ctx->options |= E2F_OPT_CHECKBLOCKS;
873 break;
874 case 'r':
875 /* What we do by default, anyway! */
876 break;
877 case 'b':
878 res = sscanf(optarg, "%llu", &ctx->use_superblock);
879 if (res != 1)
880 goto sscanf_err;
881 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
882 break;
883 case 'B':
884 ctx->blocksize = atoi(optarg);
885 break;
886 case 'I':
887 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
888 if (res != 1)
889 goto sscanf_err;
890 break;
891 case 'j':
892 ctx->journal_name = blkid_get_devname(ctx->blkid,
893 optarg, NULL);
894 if (!ctx->journal_name) {
895 com_err(ctx->program_name, 0,
896 _("Unable to resolve '%s'"),
897 optarg);
898 fatal_error(ctx, 0);
899 }
900 break;
901 case 'P':
902 res = sscanf(optarg, "%d", &ctx->process_inode_size);
903 if (res != 1)
904 goto sscanf_err;
905 break;
906 case 'L':
907 replace_bad_blocks++;
908 case 'l':
909 if (bad_blocks_file)
910 free(bad_blocks_file);
911 bad_blocks_file = string_copy(ctx, optarg, 0);
912 break;
913 case 'd':
914 ctx->options |= E2F_OPT_DEBUG;
915 break;
916 case 'f':
917 ctx->options |= E2F_OPT_FORCE;
918 break;
919 case 'F':
920 flush = 1;
921 break;
922 case 'v':
923 verbose = 1;
924 break;
925 case 'V':
926 show_version_only = 1;
927 break;
928 #ifdef MTRACE
929 case 'M':
930 mallwatch = (void *) strtol(optarg, NULL, 0);
931 break;
932 #endif
933 case 'N':
934 ctx->device_name = string_copy(ctx, optarg, 0);
935 break;
936 case 'k':
937 keep_bad_blocks++;
938 break;
939 case 'z':
940 ctx->undo_file = optarg;
941 break;
942 default:
943 usage(ctx);
944 }
945 if (show_version_only)
946 return 0;
947 if (optind != argc - 1)
948 usage(ctx);
949 if ((ctx->options & E2F_OPT_NO) &&
950 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
951 com_err(ctx->program_name, 0, "%s",
952 _("The -n and -D options are incompatible."));
953 fatal_error(ctx, 0);
954 }
955 if ((ctx->options & E2F_OPT_NO) && cflag) {
956 com_err(ctx->program_name, 0, "%s",
957 _("The -n and -c options are incompatible."));
958 fatal_error(ctx, 0);
959 }
960 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
961 com_err(ctx->program_name, 0, "%s",
962 _("The -n and -l/-L options are incompatible."));
963 fatal_error(ctx, 0);
964 }
965 if (ctx->options & E2F_OPT_NO)
966 ctx->options |= E2F_OPT_READONLY;
967
968 ctx->io_options = strchr(argv[optind], '?');
969 if (ctx->io_options)
970 *ctx->io_options++ = 0;
971 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
972 if (!ctx->filesystem_name) {
973 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
974 argv[optind]);
975 fatal_error(ctx, 0);
976 }
977 if (extended_opts)
978 parse_extended_opts(ctx, extended_opts);
979
980 /* Complain about mutually exclusive rebuilding activities */
981 if (getenv("E2FSCK_FIXES_ONLY"))
982 ctx->options |= E2F_OPT_FIXES_ONLY;
983 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
984 (ctx->options & E2F_OPT_FIXES_ONLY)) {
985 com_err(ctx->program_name, 0, "%s",
986 _("The -D and -E fixes_only options are incompatible."));
987 fatal_error(ctx, 0);
988 }
989 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
990 (ctx->options & E2F_OPT_FIXES_ONLY)) {
991 com_err(ctx->program_name, 0, "%s",
992 _("The -E bmap2extent and fixes_only options are incompatible."));
993 fatal_error(ctx, 0);
994 }
995
996 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
997 config_fn[0] = cp;
998 profile_set_syntax_err_cb(syntax_err_report);
999 profile_init(config_fn, &ctx->profile);
1000
1001 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1002 &c);
1003 if (c)
1004 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1005 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1006 &c);
1007 if (c)
1008 verbose = 1;
1009
1010 if (ctx->readahead_kb == ~0ULL) {
1011 profile_get_integer(ctx->profile, "options",
1012 "readahead_mem_pct", 0, -1, &c);
1013 if (c >= 0 && c <= 100)
1014 ctx->readahead_kb = phys_mem_kb * c / 100;
1015 profile_get_integer(ctx->profile, "options",
1016 "readahead_kb", 0, -1, &c);
1017 if (c >= 0)
1018 ctx->readahead_kb = c;
1019 if (ctx->readahead_kb != ~0ULL &&
1020 ctx->readahead_kb > phys_mem_kb)
1021 ctx->readahead_kb = phys_mem_kb;
1022 }
1023
1024 /* Turn off discard in read-only mode */
1025 if ((ctx->options & E2F_OPT_NO) &&
1026 (ctx->options & E2F_OPT_DISCARD))
1027 ctx->options &= ~E2F_OPT_DISCARD;
1028
1029 if (flush) {
1030 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1031 if (fd < 0) {
1032 com_err("open", errno,
1033 _("while opening %s for flushing"),
1034 ctx->filesystem_name);
1035 fatal_error(ctx, 0);
1036 }
1037 if ((retval = ext2fs_sync_device(fd, 1))) {
1038 com_err("ext2fs_sync_device", retval,
1039 _("while trying to flush %s"),
1040 ctx->filesystem_name);
1041 fatal_error(ctx, 0);
1042 }
1043 close(fd);
1044 }
1045 if (cflag && bad_blocks_file) {
1046 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1047 "be both used at the same time.\n"));
1048 exit(FSCK_USAGE);
1049 }
1050 #ifdef HAVE_SIGNAL_H
1051 /*
1052 * Set up signal action
1053 */
1054 memset(&sa, 0, sizeof(struct sigaction));
1055 sa.sa_handler = signal_cancel;
1056 sigaction(SIGINT, &sa, 0);
1057 sigaction(SIGTERM, &sa, 0);
1058 #ifdef SA_RESTART
1059 sa.sa_flags = SA_RESTART;
1060 #endif
1061 sa.sa_handler = signal_progress_on;
1062 sigaction(SIGUSR1, &sa, 0);
1063 sa.sa_handler = signal_progress_off;
1064 sigaction(SIGUSR2, &sa, 0);
1065 #endif
1066
1067 /* Update our PATH to include /sbin if we need to run badblocks */
1068 if (cflag) {
1069 char *oldpath = getenv("PATH");
1070 char *newpath;
1071 int len = sizeof(PATH_SET) + 1;
1072
1073 if (oldpath)
1074 len += strlen(oldpath);
1075
1076 newpath = malloc(len);
1077 if (!newpath)
1078 fatal_error(ctx, "Couldn't malloc() newpath");
1079 strcpy(newpath, PATH_SET);
1080
1081 if (oldpath) {
1082 strcat(newpath, ":");
1083 strcat(newpath, oldpath);
1084 }
1085 putenv(newpath);
1086 }
1087 #ifdef CONFIG_JBD_DEBUG
1088 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1089 if (jbd_debug) {
1090 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1091 if (res != 1) {
1092 fprintf(stderr,
1093 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1094 jbd_debug);
1095 exit (1);
1096 }
1097 }
1098 #endif
1099 return 0;
1100
1101 sscanf_err:
1102 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1103 c, optarg);
1104 exit (1);
1105 }
1106
1107 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1108 ext2_filsys *ret_fs)
1109 {
1110 errcode_t retval;
1111
1112 *ret_fs = NULL;
1113 if (ctx->superblock && ctx->blocksize) {
1114 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1115 flags, ctx->superblock, ctx->blocksize,
1116 io_ptr, ret_fs);
1117 } else if (ctx->superblock) {
1118 int blocksize;
1119 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1120 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1121 if (*ret_fs) {
1122 ext2fs_free(*ret_fs);
1123 *ret_fs = NULL;
1124 }
1125 retval = ext2fs_open2(ctx->filesystem_name,
1126 ctx->io_options, flags,
1127 ctx->superblock, blocksize,
1128 io_ptr, ret_fs);
1129 if (!retval)
1130 break;
1131 }
1132 } else
1133 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1134 flags, 0, 0, io_ptr, ret_fs);
1135
1136 if (retval == 0) {
1137 (*ret_fs)->priv_data = ctx;
1138 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1139 "default", NULL);
1140 }
1141 return retval;
1142 }
1143
1144 static const char *my_ver_string = E2FSPROGS_VERSION;
1145 static const char *my_ver_date = E2FSPROGS_DATE;
1146
1147 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1148 {
1149 struct mmp_struct *mmp_s;
1150 unsigned int mmp_check_interval;
1151 errcode_t retval = 0;
1152 struct problem_context pctx;
1153 unsigned int wait_time = 0;
1154
1155 clear_problem_context(&pctx);
1156 if (fs->mmp_buf == NULL) {
1157 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1158 if (retval)
1159 goto check_error;
1160 }
1161
1162 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1163 if (retval)
1164 goto check_error;
1165
1166 mmp_s = fs->mmp_buf;
1167
1168 mmp_check_interval = fs->super->s_mmp_update_interval;
1169 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1170 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1171
1172 /*
1173 * If check_interval in MMP block is larger, use that instead of
1174 * check_interval from the superblock.
1175 */
1176 if (mmp_s->mmp_check_interval > mmp_check_interval)
1177 mmp_check_interval = mmp_s->mmp_check_interval;
1178
1179 wait_time = mmp_check_interval * 2 + 1;
1180
1181 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1182 retval = 0;
1183 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1184 retval = EXT2_ET_MMP_FSCK_ON;
1185 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1186 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1187
1188 if (retval)
1189 goto check_error;
1190
1191 /* Print warning if e2fck will wait for more than 20 secs. */
1192 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1193 log_out(ctx, _("MMP interval is %u seconds and total wait "
1194 "time is %u seconds. Please wait...\n"),
1195 mmp_check_interval, wait_time * 2);
1196 }
1197
1198 return 0;
1199
1200 check_error:
1201
1202 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1203 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1204 fs->super->s_mmp_block = 0;
1205 ext2fs_mark_super_dirty(fs);
1206 retval = 0;
1207 }
1208 } else if (retval == EXT2_ET_MMP_FAILED) {
1209 com_err(ctx->program_name, retval, "%s",
1210 _("while checking MMP block"));
1211 dump_mmp_msg(fs->mmp_buf, NULL);
1212 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1213 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1214 com_err(ctx->program_name, retval, "%s",
1215 _("while checking MMP block"));
1216 dump_mmp_msg(fs->mmp_buf,
1217 _("If you are sure the filesystem is not "
1218 "in use on any node, run:\n"
1219 "'tune2fs -f -E clear_mmp {device}'\n"));
1220 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1221 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1222 ext2fs_mmp_clear(fs);
1223 retval = 0;
1224 }
1225 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1226 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1227 ext2fs_mmp_clear(fs);
1228 retval = 0;
1229 }
1230 } else
1231 com_err(ctx->program_name, retval, "%s",
1232 _("while reading MMP block"));
1233 return retval;
1234 }
1235
1236 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1237 {
1238 errcode_t retval = ENOMEM;
1239 char *tdb_dir = NULL, *tdb_file = NULL;
1240 char *dev_name, *tmp_name;
1241 int free_tdb_dir = 0;
1242
1243 /* (re)open a specific undo file */
1244 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1245 retval = set_undo_io_backing_manager(*io_ptr);
1246 if (retval)
1247 goto err;
1248 *io_ptr = undo_io_manager;
1249 retval = set_undo_io_backup_file(ctx->undo_file);
1250 if (retval)
1251 goto err;
1252 printf(_("Overwriting existing filesystem; this can be undone "
1253 "using the command:\n"
1254 " e2undo %s %s\n\n"),
1255 ctx->undo_file, ctx->filesystem_name);
1256 return retval;
1257 }
1258
1259 /*
1260 * Configuration via a conf file would be
1261 * nice
1262 */
1263 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1264 if (!tdb_dir) {
1265 profile_get_string(ctx->profile, "defaults",
1266 "undo_dir", 0, "/var/lib/e2fsprogs",
1267 &tdb_dir);
1268 free_tdb_dir = 1;
1269 }
1270
1271 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1272 access(tdb_dir, W_OK)) {
1273 if (free_tdb_dir)
1274 free(tdb_dir);
1275 return 0;
1276 }
1277
1278 tmp_name = strdup(ctx->filesystem_name);
1279 if (!tmp_name)
1280 goto errout;
1281 dev_name = basename(tmp_name);
1282 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1283 if (!tdb_file) {
1284 free(tmp_name);
1285 goto errout;
1286 }
1287 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1288 free(tmp_name);
1289
1290 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1291 retval = errno;
1292 com_err(ctx->program_name, retval,
1293 _("while trying to delete %s"), tdb_file);
1294 goto errout;
1295 }
1296
1297 retval = set_undo_io_backing_manager(*io_ptr);
1298 if (retval)
1299 goto errout;
1300 *io_ptr = undo_io_manager;
1301 retval = set_undo_io_backup_file(tdb_file);
1302 if (retval)
1303 goto errout;
1304 printf(_("Overwriting existing filesystem; this can be undone "
1305 "using the command:\n"
1306 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1307
1308 if (free_tdb_dir)
1309 free(tdb_dir);
1310 free(tdb_file);
1311 return 0;
1312
1313 errout:
1314 if (free_tdb_dir)
1315 free(tdb_dir);
1316 free(tdb_file);
1317 err:
1318 com_err(ctx->program_name, retval, "%s",
1319 _("while trying to setup undo file\n"));
1320 return retval;
1321 }
1322
1323 int main (int argc, char *argv[])
1324 {
1325 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1326 int exit_value = FSCK_OK;
1327 ext2_filsys fs = 0;
1328 io_manager io_ptr;
1329 struct ext2_super_block *sb;
1330 const char *lib_ver_date;
1331 int my_ver, lib_ver;
1332 e2fsck_t ctx;
1333 blk64_t orig_superblock;
1334 struct problem_context pctx;
1335 int flags, run_result, was_changed;
1336 int journal_size;
1337 int sysval, sys_page_size = 4096;
1338 int old_bitmaps;
1339 __u32 features[3];
1340 char *cp;
1341 int qtype = -99; /* quota type */
1342
1343 clear_problem_context(&pctx);
1344 sigcatcher_setup();
1345 #ifdef MTRACE
1346 mtrace();
1347 #endif
1348 #ifdef MCHECK
1349 mcheck(0);
1350 #endif
1351 #ifdef ENABLE_NLS
1352 setlocale(LC_MESSAGES, "");
1353 setlocale(LC_CTYPE, "");
1354 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1355 textdomain(NLS_CAT_NAME);
1356 set_com_err_gettext(gettext);
1357 #endif
1358 my_ver = ext2fs_parse_version_string(my_ver_string);
1359 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1360 if (my_ver > lib_ver) {
1361 fprintf( stderr, "%s",
1362 _("Error: ext2fs library version out of date!\n"));
1363 show_version_only++;
1364 }
1365
1366 retval = PRS(argc, argv, &ctx);
1367 if (retval) {
1368 com_err("e2fsck", retval, "%s",
1369 _("while trying to initialize program"));
1370 exit(FSCK_ERROR);
1371 }
1372 reserve_stdio_fds();
1373
1374 set_up_logging(ctx);
1375 if (ctx->logf) {
1376 int i;
1377 fputs("E2fsck run: ", ctx->logf);
1378 for (i = 0; i < argc; i++) {
1379 if (i)
1380 fputc(' ', ctx->logf);
1381 fputs(argv[i], ctx->logf);
1382 }
1383 fputc('\n', ctx->logf);
1384 }
1385
1386 init_resource_track(&ctx->global_rtrack, NULL);
1387 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1388 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1389 my_ver_date);
1390
1391 if (show_version_only) {
1392 log_err(ctx, _("\tUsing %s, %s\n"),
1393 error_message(EXT2_ET_BASE), lib_ver_date);
1394 exit(FSCK_OK);
1395 }
1396
1397 check_mount(ctx);
1398
1399 if (!(ctx->options & E2F_OPT_PREEN) &&
1400 !(ctx->options & E2F_OPT_NO) &&
1401 !(ctx->options & E2F_OPT_YES)) {
1402 if (!ctx->interactive)
1403 fatal_error(ctx,
1404 _("need terminal for interactive repairs"));
1405 }
1406 ctx->superblock = ctx->use_superblock;
1407
1408 flags = EXT2_FLAG_SKIP_MMP;
1409 restart:
1410 #ifdef CONFIG_TESTIO_DEBUG
1411 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1412 io_ptr = test_io_manager;
1413 test_io_backing_manager = unix_io_manager;
1414 } else
1415 #endif
1416 io_ptr = unix_io_manager;
1417 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1418 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1419 &old_bitmaps);
1420 if (!old_bitmaps)
1421 flags |= EXT2_FLAG_64BITS;
1422 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1423 flags |= EXT2_FLAG_RW;
1424 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1425 ctx->mount_flags & EXT2_MF_READONLY))
1426 flags |= EXT2_FLAG_EXCLUSIVE;
1427 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1428 (ctx->options & E2F_OPT_FORCE))
1429 flags &= ~EXT2_FLAG_EXCLUSIVE;
1430 }
1431
1432 if (ctx->undo_file) {
1433 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1434 if (retval)
1435 exit(FSCK_ERROR);
1436 }
1437
1438 ctx->openfs_flags = flags;
1439 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1440
1441 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1442 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1443 ((retval == EXT2_ET_BAD_MAGIC) ||
1444 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1445 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1446 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1447 if (retval) {
1448 pctx.errcode = retval;
1449 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1450 }
1451 if (retval2) {
1452 pctx.errcode = retval2;
1453 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1454 }
1455 pctx.errcode = 0;
1456 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1457 retval = retval2;
1458 goto failure;
1459 }
1460 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1461 ext2fs_free(fs);
1462 fs = NULL;
1463 }
1464 if (!fs || (fs->group_desc_count > 1)) {
1465 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1466 ctx->program_name,
1467 retval ? _("Superblock invalid,") :
1468 _("Group descriptors look bad..."));
1469 orig_superblock = ctx->superblock;
1470 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1471 if (fs)
1472 ext2fs_close_free(&fs);
1473 orig_retval = retval;
1474 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1475 if ((orig_retval == 0) && retval != 0) {
1476 if (fs)
1477 ext2fs_close_free(&fs);
1478 log_out(ctx, _("%s: %s while using the "
1479 "backup blocks"),
1480 ctx->program_name,
1481 error_message(retval));
1482 log_out(ctx, _("%s: going back to original "
1483 "superblock\n"),
1484 ctx->program_name);
1485 ctx->superblock = orig_superblock;
1486 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1487 }
1488 }
1489 }
1490 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1491 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1492 fs && fs->super) {
1493 sb = fs->super;
1494 features[0] = (sb->s_feature_compat &
1495 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1496 features[1] = (sb->s_feature_incompat &
1497 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1498 features[2] = (sb->s_feature_ro_compat &
1499 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1500 if (features[0] || features[1] || features[2])
1501 goto print_unsupp_features;
1502 }
1503 failure:
1504 if (retval) {
1505 if (orig_retval)
1506 retval = orig_retval;
1507 com_err(ctx->program_name, retval, _("while trying to open %s"),
1508 ctx->filesystem_name);
1509 if (retval == EXT2_ET_REV_TOO_HIGH) {
1510 log_out(ctx, "%s",
1511 _("The filesystem revision is apparently "
1512 "too high for this version of e2fsck.\n"
1513 "(Or the filesystem superblock "
1514 "is corrupt)\n\n"));
1515 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1516 } else if (retval == EXT2_ET_SHORT_READ)
1517 log_out(ctx, "%s",
1518 _("Could this be a zero-length partition?\n"));
1519 else if ((retval == EPERM) || (retval == EACCES))
1520 log_out(ctx, _("You must have %s access to the "
1521 "filesystem or be root\n"),
1522 (ctx->options & E2F_OPT_READONLY) ?
1523 "r/o" : "r/w");
1524 else if (retval == ENXIO)
1525 log_out(ctx, "%s",
1526 _("Possibly non-existent or swap device?\n"));
1527 else if (retval == EBUSY)
1528 log_out(ctx, "%s", _("Filesystem mounted or opened "
1529 "exclusively by another program?\n"));
1530 else if (retval == ENOENT)
1531 log_out(ctx, "%s",
1532 _("Possibly non-existent device?\n"));
1533 #ifdef EROFS
1534 else if (retval == EROFS)
1535 log_out(ctx, "%s", _("Disk write-protected; use the "
1536 "-n option to do a read-only\n"
1537 "check of the device.\n"));
1538 #endif
1539 else {
1540 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1541 if (retval == EXT2_ET_BAD_MAGIC)
1542 check_plausibility(ctx->filesystem_name,
1543 CHECK_FS_EXIST, NULL);
1544 }
1545 fatal_error(ctx, 0);
1546 }
1547 /*
1548 * We only update the master superblock because (a) paranoia;
1549 * we don't want to corrupt the backup superblocks, and (b) we
1550 * don't need to update the mount count and last checked
1551 * fields in the backup superblock (the kernel doesn't update
1552 * the backup superblocks anyway). With newer versions of the
1553 * library this flag is set by ext2fs_open2(), but we set this
1554 * here just to be sure. (No, we don't support e2fsck running
1555 * with some other libext2fs than the one that it was shipped
1556 * with, but just in case....)
1557 */
1558 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1559
1560 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1561 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1562 int need_restart = 0;
1563
1564 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1565 blocksize,
1566 &ctx->num_blocks);
1567 /*
1568 * The floppy driver refuses to allow anyone else to
1569 * open the device if has been opened with O_EXCL;
1570 * this is unlike other block device drivers in Linux.
1571 * To handle this, we close the filesystem and then
1572 * reopen the filesystem after we get the device size.
1573 */
1574 if (pctx.errcode == EBUSY) {
1575 ext2fs_close_free(&fs);
1576 need_restart++;
1577 pctx.errcode =
1578 ext2fs_get_device_size2(ctx->filesystem_name,
1579 blocksize,
1580 &ctx->num_blocks);
1581 }
1582 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1583 ctx->num_blocks = 0;
1584 else if (pctx.errcode) {
1585 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1586 ctx->flags |= E2F_FLAG_ABORT;
1587 fatal_error(ctx, 0);
1588 }
1589 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1590 if (need_restart)
1591 goto restart;
1592 }
1593
1594 ctx->fs = fs;
1595 fs->now = ctx->now;
1596 sb = fs->super;
1597
1598 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1599 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1600 _("while trying to open %s"),
1601 ctx->filesystem_name);
1602 get_newer:
1603 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1604 }
1605
1606 /*
1607 * Set the device name, which is used whenever we print error
1608 * or informational messages to the user.
1609 */
1610 if (ctx->device_name == 0 &&
1611 (sb->s_volume_name[0] != 0)) {
1612 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1613 sizeof(sb->s_volume_name));
1614 }
1615 if (ctx->device_name == 0)
1616 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1617 for (cp = ctx->device_name; *cp; cp++)
1618 if (isspace(*cp) || *cp == ':')
1619 *cp = '_';
1620
1621 ehandler_init(fs->io);
1622
1623 if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) &&
1624 (flags & EXT2_FLAG_SKIP_MMP)) {
1625 if (e2fsck_check_mmp(fs, ctx))
1626 fatal_error(ctx, 0);
1627
1628 /*
1629 * Restart in order to reopen fs but this time start mmp.
1630 */
1631 ext2fs_close_free(&ctx->fs);
1632 flags &= ~EXT2_FLAG_SKIP_MMP;
1633 goto restart;
1634 }
1635
1636 if (ctx->logf)
1637 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1638 e2p_uuid2str(sb->s_uuid));
1639
1640 /*
1641 * Make sure the ext3 superblock fields are consistent.
1642 */
1643 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1644 retval = e2fsck_check_ext3_journal(ctx);
1645 if (retval) {
1646 com_err(ctx->program_name, retval,
1647 _("while checking ext3 journal for %s"),
1648 ctx->device_name);
1649 fatal_error(ctx, 0);
1650 }
1651 }
1652
1653 /*
1654 * Check to see if we need to do ext3-style recovery. If so,
1655 * do it, and then restart the fsck.
1656 */
1657 if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
1658 if (ctx->options & E2F_OPT_READONLY) {
1659 log_out(ctx, "%s",
1660 _("Warning: skipping journal recovery because "
1661 "doing a read-only filesystem check.\n"));
1662 io_channel_flush(ctx->fs->io);
1663 } else {
1664 if (ctx->flags & E2F_FLAG_RESTARTED) {
1665 /*
1666 * Whoops, we attempted to run the
1667 * journal twice. This should never
1668 * happen, unless the hardware or
1669 * device driver is being bogus.
1670 */
1671 com_err(ctx->program_name, 0,
1672 _("unable to set superblock flags "
1673 "on %s\n"), ctx->device_name);
1674 fatal_error(ctx, 0);
1675 }
1676 retval = e2fsck_run_ext3_journal(ctx);
1677 if (retval) {
1678 com_err(ctx->program_name, retval,
1679 _("while recovering ext3 journal of %s"),
1680 ctx->device_name);
1681 fatal_error(ctx, 0);
1682 }
1683 ext2fs_close_free(&ctx->fs);
1684 ctx->flags |= E2F_FLAG_RESTARTED;
1685 goto restart;
1686 }
1687 }
1688
1689 /*
1690 * Check for compatibility with the feature sets. We need to
1691 * be more stringent than ext2fs_open().
1692 */
1693 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1694 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1695 features[2] = (sb->s_feature_ro_compat &
1696 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1697 print_unsupp_features:
1698 if (features[0] || features[1] || features[2]) {
1699 int i, j;
1700 __u32 *mask = features, m;
1701
1702 log_err(ctx, _("%s has unsupported feature(s):"),
1703 ctx->filesystem_name);
1704
1705 for (i=0; i <3; i++,mask++) {
1706 for (j=0,m=1; j < 32; j++, m<<=1) {
1707 if (*mask & m)
1708 log_err(ctx, " %s",
1709 e2p_feature2string(i, m));
1710 }
1711 }
1712 log_err(ctx, "\n");
1713 goto get_newer;
1714 }
1715 #ifndef ENABLE_HTREE
1716 if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
1717 log_err(ctx, _("%s: e2fsck not compiled with HTREE support,\n\t"
1718 "but filesystem %s has HTREE directories.\n"),
1719 ctx->program_name, ctx->device_name);
1720 goto get_newer;
1721 }
1722 #endif
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 (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA) {
1788 /* Quotas were enabled. Do quota accounting during fsck. */
1789 if ((sb->s_usr_quota_inum && sb->s_grp_quota_inum) ||
1790 (!sb->s_usr_quota_inum && !sb->s_grp_quota_inum))
1791 qtype = -1;
1792 else
1793 qtype = sb->s_usr_quota_inum ? USRQUOTA : GRPQUOTA;
1794
1795 quota_init_context(&ctx->qctx, ctx->fs, qtype);
1796 }
1797
1798 run_result = e2fsck_run(ctx);
1799 e2fsck_clear_progbar(ctx);
1800
1801 if (!ctx->invalid_bitmaps &&
1802 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1803 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1804 if (journal_size < 1024)
1805 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1806 if (journal_size < 0) {
1807 fs->super->s_feature_compat &=
1808 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1809 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1810 log_out(ctx, "%s: Couldn't determine "
1811 "journal size\n", ctx->program_name);
1812 goto no_journal;
1813 }
1814 log_out(ctx, _("Creating journal (%d blocks): "),
1815 journal_size);
1816 fflush(stdout);
1817 retval = ext2fs_add_journal_inode(fs,
1818 journal_size, 0);
1819 if (retval) {
1820 log_out(ctx, "%s: while trying to create "
1821 "journal\n", error_message(retval));
1822 goto no_journal;
1823 }
1824 log_out(ctx, "%s", _(" Done.\n"));
1825 log_out(ctx, "%s",
1826 _("\n*** journal has been regenerated ***\n"));
1827 }
1828 }
1829 no_journal:
1830
1831 if (ctx->qctx) {
1832 int i, needs_writeout;
1833 for (i = 0; i < MAXQUOTAS; i++) {
1834 if (qtype != -1 && qtype != i)
1835 continue;
1836 needs_writeout = 0;
1837 pctx.num = i;
1838 retval = quota_compare_and_update(ctx->qctx, i,
1839 &needs_writeout);
1840 if ((retval || needs_writeout) &&
1841 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx))
1842 quota_write_inode(ctx->qctx, i);
1843 }
1844 quota_release_context(&ctx->qctx);
1845 }
1846
1847 if (run_result == E2F_FLAG_RESTART) {
1848 log_out(ctx, "%s",
1849 _("Restarting e2fsck from the beginning...\n"));
1850 retval = e2fsck_reset_context(ctx);
1851 if (retval) {
1852 com_err(ctx->program_name, retval, "%s",
1853 _("while resetting context"));
1854 fatal_error(ctx, 0);
1855 }
1856 ext2fs_close_free(&ctx->fs);
1857 goto restart;
1858 }
1859 if (run_result & E2F_FLAG_ABORT)
1860 fatal_error(ctx, _("aborted"));
1861
1862 #ifdef MTRACE
1863 mtrace_print("Cleanup");
1864 #endif
1865 was_changed = ext2fs_test_changed(fs);
1866 if (run_result & E2F_FLAG_CANCEL) {
1867 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1868 ctx->device_name : ctx->filesystem_name);
1869 exit_value |= FSCK_CANCELED;
1870 } else if (!(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 LINUX *****\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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