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e2fsck: don't flush to device opened in read-only mode
[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 [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\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, "no_optimize_extents") == 0) {
713 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
714 continue;
715 } else if (strcmp(token, "log_filename") == 0) {
716 if (!arg)
717 extended_usage++;
718 else
719 ctx->log_fn = string_copy(ctx, arg, 0);
720 continue;
721 } else if (strcmp(token, "bmap2extent") == 0) {
722 ctx->options |= E2F_OPT_CONVERT_BMAP;
723 continue;
724 } else if (strcmp(token, "fixes_only") == 0) {
725 ctx->options |= E2F_OPT_FIXES_ONLY;
726 continue;
727 } else {
728 fprintf(stderr, _("Unknown extended option: %s\n"),
729 token);
730 extended_usage++;
731 }
732 }
733 free(buf);
734
735 if (extended_usage) {
736 fputs(("\nExtended options are separated by commas, "
737 "and may take an argument which\n"
738 "is set off by an equals ('=') sign. "
739 "Valid extended options are:\n"), stderr);
740 fputs(("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
741 fputs(("\tfragcheck\n"), stderr);
742 fputs(("\tjournal_only\n"), stderr);
743 fputs(("\tdiscard\n"), stderr);
744 fputs(("\tnodiscard\n"), stderr);
745 fputs(("\treadahead_kb=<buffer size>\n"), stderr);
746 fputs(("\tbmap2extent\n"), stderr);
747 fputc('\n', stderr);
748 exit(1);
749 }
750 }
751
752 static void syntax_err_report(const char *filename, long err, int line_num)
753 {
754 fprintf(stderr,
755 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
756 filename, line_num, error_message(err));
757 exit(FSCK_ERROR);
758 }
759
760 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
761
762 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
763 {
764 int flush = 0;
765 int c, fd;
766 #ifdef MTRACE
767 extern void *mallwatch;
768 #endif
769 e2fsck_t ctx;
770 errcode_t retval;
771 #ifdef HAVE_SIGNAL_H
772 struct sigaction sa;
773 #endif
774 char *extended_opts = 0;
775 char *cp;
776 int res; /* result of sscanf */
777 #ifdef CONFIG_JBD_DEBUG
778 char *jbd_debug;
779 #endif
780 unsigned long long phys_mem_kb;
781
782 retval = e2fsck_allocate_context(&ctx);
783 if (retval)
784 return retval;
785
786 *ret_ctx = ctx;
787 e2fsck_global_ctx = ctx;
788
789 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
790 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
791 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
792 ctx->interactive = 1;
793 } else {
794 ctx->start_meta[0] = '\001';
795 ctx->stop_meta[0] = '\002';
796 }
797 memset(bar, '=', sizeof(bar)-1);
798 memset(spaces, ' ', sizeof(spaces)-1);
799 add_error_table(&et_ext2_error_table);
800 add_error_table(&et_prof_error_table);
801 blkid_get_cache(&ctx->blkid, NULL);
802
803 if (argc && *argv)
804 ctx->program_name = *argv;
805 else
806 ctx->program_name = "e2fsck";
807
808 phys_mem_kb = get_memory_size() / 1024;
809 ctx->readahead_kb = ~0ULL;
810 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
811 switch (c) {
812 case 'C':
813 ctx->progress = e2fsck_update_progress;
814 res = sscanf(optarg, "%d", &ctx->progress_fd);
815 if (res != 1)
816 goto sscanf_err;
817
818 if (ctx->progress_fd < 0) {
819 ctx->progress = 0;
820 ctx->progress_fd = ctx->progress_fd * -1;
821 }
822 if (!ctx->progress_fd)
823 break;
824 /* Validate the file descriptor to avoid disasters */
825 fd = dup(ctx->progress_fd);
826 if (fd < 0) {
827 fprintf(stderr,
828 _("Error validating file descriptor %d: %s\n"),
829 ctx->progress_fd,
830 error_message(errno));
831 fatal_error(ctx,
832 _("Invalid completion information file descriptor"));
833 } else
834 close(fd);
835 break;
836 case 'D':
837 ctx->options |= E2F_OPT_COMPRESS_DIRS;
838 break;
839 case 'E':
840 extended_opts = optarg;
841 break;
842 case 'p':
843 case 'a':
844 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
845 conflict_opt:
846 fatal_error(ctx,
847 _("Only one of the options -p/-a, -n or -y may be specified."));
848 }
849 ctx->options |= E2F_OPT_PREEN;
850 break;
851 case 'n':
852 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
853 goto conflict_opt;
854 ctx->options |= E2F_OPT_NO;
855 break;
856 case 'y':
857 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
858 goto conflict_opt;
859 ctx->options |= E2F_OPT_YES;
860 break;
861 case 't':
862 #ifdef RESOURCE_TRACK
863 if (ctx->options & E2F_OPT_TIME)
864 ctx->options |= E2F_OPT_TIME2;
865 else
866 ctx->options |= E2F_OPT_TIME;
867 #else
868 fprintf(stderr, _("The -t option is not "
869 "supported on this version of e2fsck.\n"));
870 #endif
871 break;
872 case 'c':
873 if (cflag++)
874 ctx->options |= E2F_OPT_WRITECHECK;
875 ctx->options |= E2F_OPT_CHECKBLOCKS;
876 break;
877 case 'r':
878 /* What we do by default, anyway! */
879 break;
880 case 'b':
881 res = sscanf(optarg, "%llu", &ctx->use_superblock);
882 if (res != 1)
883 goto sscanf_err;
884 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
885 break;
886 case 'B':
887 ctx->blocksize = atoi(optarg);
888 break;
889 case 'I':
890 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
891 if (res != 1)
892 goto sscanf_err;
893 break;
894 case 'j':
895 ctx->journal_name = blkid_get_devname(ctx->blkid,
896 optarg, NULL);
897 if (!ctx->journal_name) {
898 com_err(ctx->program_name, 0,
899 _("Unable to resolve '%s'"),
900 optarg);
901 fatal_error(ctx, 0);
902 }
903 break;
904 case 'P':
905 res = sscanf(optarg, "%d", &ctx->process_inode_size);
906 if (res != 1)
907 goto sscanf_err;
908 break;
909 case 'L':
910 replace_bad_blocks++;
911 case 'l':
912 if (bad_blocks_file)
913 free(bad_blocks_file);
914 bad_blocks_file = string_copy(ctx, optarg, 0);
915 break;
916 case 'd':
917 ctx->options |= E2F_OPT_DEBUG;
918 break;
919 case 'f':
920 ctx->options |= E2F_OPT_FORCE;
921 break;
922 case 'F':
923 flush = 1;
924 break;
925 case 'v':
926 verbose = 1;
927 break;
928 case 'V':
929 show_version_only = 1;
930 break;
931 #ifdef MTRACE
932 case 'M':
933 mallwatch = (void *) strtol(optarg, NULL, 0);
934 break;
935 #endif
936 case 'N':
937 ctx->device_name = string_copy(ctx, optarg, 0);
938 break;
939 case 'k':
940 keep_bad_blocks++;
941 break;
942 case 'z':
943 ctx->undo_file = optarg;
944 break;
945 default:
946 usage(ctx);
947 }
948 if (show_version_only)
949 return 0;
950 if (optind != argc - 1)
951 usage(ctx);
952 if ((ctx->options & E2F_OPT_NO) &&
953 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
954 com_err(ctx->program_name, 0, "%s",
955 _("The -n and -D options are incompatible."));
956 fatal_error(ctx, 0);
957 }
958 if ((ctx->options & E2F_OPT_NO) && cflag) {
959 com_err(ctx->program_name, 0, "%s",
960 _("The -n and -c options are incompatible."));
961 fatal_error(ctx, 0);
962 }
963 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
964 com_err(ctx->program_name, 0, "%s",
965 _("The -n and -l/-L options are incompatible."));
966 fatal_error(ctx, 0);
967 }
968 if (ctx->options & E2F_OPT_NO)
969 ctx->options |= E2F_OPT_READONLY;
970
971 ctx->io_options = strchr(argv[optind], '?');
972 if (ctx->io_options)
973 *ctx->io_options++ = 0;
974 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
975 if (!ctx->filesystem_name) {
976 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
977 argv[optind]);
978 fatal_error(ctx, 0);
979 }
980 if (extended_opts)
981 parse_extended_opts(ctx, extended_opts);
982
983 /* Complain about mutually exclusive rebuilding activities */
984 if (getenv("E2FSCK_FIXES_ONLY"))
985 ctx->options |= E2F_OPT_FIXES_ONLY;
986 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
987 (ctx->options & E2F_OPT_FIXES_ONLY)) {
988 com_err(ctx->program_name, 0, "%s",
989 _("The -D and -E fixes_only options are incompatible."));
990 fatal_error(ctx, 0);
991 }
992 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
993 (ctx->options & E2F_OPT_FIXES_ONLY)) {
994 com_err(ctx->program_name, 0, "%s",
995 _("The -E bmap2extent and fixes_only options are incompatible."));
996 fatal_error(ctx, 0);
997 }
998
999 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1000 config_fn[0] = cp;
1001 profile_set_syntax_err_cb(syntax_err_report);
1002 profile_init(config_fn, &ctx->profile);
1003
1004 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1005 &c);
1006 if (c)
1007 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1008 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1009 &c);
1010 if (c)
1011 verbose = 1;
1012
1013 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1014 0, 0, &c);
1015 if (c)
1016 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1017
1018 if (ctx->readahead_kb == ~0ULL) {
1019 profile_get_integer(ctx->profile, "options",
1020 "readahead_mem_pct", 0, -1, &c);
1021 if (c >= 0 && c <= 100)
1022 ctx->readahead_kb = phys_mem_kb * c / 100;
1023 profile_get_integer(ctx->profile, "options",
1024 "readahead_kb", 0, -1, &c);
1025 if (c >= 0)
1026 ctx->readahead_kb = c;
1027 if (ctx->readahead_kb != ~0ULL &&
1028 ctx->readahead_kb > phys_mem_kb)
1029 ctx->readahead_kb = phys_mem_kb;
1030 }
1031
1032 /* Turn off discard in read-only mode */
1033 if ((ctx->options & E2F_OPT_NO) &&
1034 (ctx->options & E2F_OPT_DISCARD))
1035 ctx->options &= ~E2F_OPT_DISCARD;
1036
1037 if (flush) {
1038 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1039 if (fd < 0) {
1040 com_err("open", errno,
1041 _("while opening %s for flushing"),
1042 ctx->filesystem_name);
1043 fatal_error(ctx, 0);
1044 }
1045 if ((retval = ext2fs_sync_device(fd, 1))) {
1046 com_err("ext2fs_sync_device", retval,
1047 _("while trying to flush %s"),
1048 ctx->filesystem_name);
1049 fatal_error(ctx, 0);
1050 }
1051 close(fd);
1052 }
1053 if (cflag && bad_blocks_file) {
1054 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1055 "be both used at the same time.\n"));
1056 exit(FSCK_USAGE);
1057 }
1058 #ifdef HAVE_SIGNAL_H
1059 /*
1060 * Set up signal action
1061 */
1062 memset(&sa, 0, sizeof(struct sigaction));
1063 sa.sa_handler = signal_cancel;
1064 sigaction(SIGINT, &sa, 0);
1065 sigaction(SIGTERM, &sa, 0);
1066 #ifdef SA_RESTART
1067 sa.sa_flags = SA_RESTART;
1068 #endif
1069 sa.sa_handler = signal_progress_on;
1070 sigaction(SIGUSR1, &sa, 0);
1071 sa.sa_handler = signal_progress_off;
1072 sigaction(SIGUSR2, &sa, 0);
1073 #endif
1074
1075 /* Update our PATH to include /sbin if we need to run badblocks */
1076 if (cflag) {
1077 char *oldpath = getenv("PATH");
1078 char *newpath;
1079 int len = sizeof(PATH_SET) + 1;
1080
1081 if (oldpath)
1082 len += strlen(oldpath);
1083
1084 newpath = malloc(len);
1085 if (!newpath)
1086 fatal_error(ctx, "Couldn't malloc() newpath");
1087 strcpy(newpath, PATH_SET);
1088
1089 if (oldpath) {
1090 strcat(newpath, ":");
1091 strcat(newpath, oldpath);
1092 }
1093 putenv(newpath);
1094 }
1095 #ifdef CONFIG_JBD_DEBUG
1096 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1097 if (jbd_debug) {
1098 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1099 if (res != 1) {
1100 fprintf(stderr,
1101 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1102 jbd_debug);
1103 exit (1);
1104 }
1105 }
1106 #endif
1107 return 0;
1108
1109 sscanf_err:
1110 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1111 c, optarg);
1112 exit (1);
1113 }
1114
1115 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1116 ext2_filsys *ret_fs)
1117 {
1118 errcode_t retval;
1119
1120 *ret_fs = NULL;
1121 if (ctx->superblock && ctx->blocksize) {
1122 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1123 flags, ctx->superblock, ctx->blocksize,
1124 io_ptr, ret_fs);
1125 } else if (ctx->superblock) {
1126 int blocksize;
1127 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1128 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1129 if (*ret_fs) {
1130 ext2fs_free(*ret_fs);
1131 *ret_fs = NULL;
1132 }
1133 retval = ext2fs_open2(ctx->filesystem_name,
1134 ctx->io_options, flags,
1135 ctx->superblock, blocksize,
1136 io_ptr, ret_fs);
1137 if (!retval)
1138 break;
1139 }
1140 } else
1141 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1142 flags, 0, 0, io_ptr, ret_fs);
1143
1144 if (retval == 0) {
1145 (*ret_fs)->priv_data = ctx;
1146 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1147 "default", NULL);
1148 }
1149 return retval;
1150 }
1151
1152 static const char *my_ver_string = E2FSPROGS_VERSION;
1153 static const char *my_ver_date = E2FSPROGS_DATE;
1154
1155 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1156 {
1157 struct mmp_struct *mmp_s;
1158 unsigned int mmp_check_interval;
1159 errcode_t retval = 0;
1160 struct problem_context pctx;
1161 unsigned int wait_time = 0;
1162
1163 clear_problem_context(&pctx);
1164 if (fs->mmp_buf == NULL) {
1165 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1166 if (retval)
1167 goto check_error;
1168 }
1169
1170 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1171 if (retval)
1172 goto check_error;
1173
1174 mmp_s = fs->mmp_buf;
1175
1176 mmp_check_interval = fs->super->s_mmp_update_interval;
1177 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1178 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1179
1180 /*
1181 * If check_interval in MMP block is larger, use that instead of
1182 * check_interval from the superblock.
1183 */
1184 if (mmp_s->mmp_check_interval > mmp_check_interval)
1185 mmp_check_interval = mmp_s->mmp_check_interval;
1186
1187 wait_time = mmp_check_interval * 2 + 1;
1188
1189 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1190 retval = 0;
1191 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1192 retval = EXT2_ET_MMP_FSCK_ON;
1193 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1194 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1195
1196 if (retval)
1197 goto check_error;
1198
1199 /* Print warning if e2fck will wait for more than 20 secs. */
1200 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1201 log_out(ctx, _("MMP interval is %u seconds and total wait "
1202 "time is %u seconds. Please wait...\n"),
1203 mmp_check_interval, wait_time * 2);
1204 }
1205
1206 return 0;
1207
1208 check_error:
1209
1210 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1211 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1212 fs->super->s_mmp_block = 0;
1213 ext2fs_mark_super_dirty(fs);
1214 retval = 0;
1215 }
1216 } else if (retval == EXT2_ET_MMP_FAILED) {
1217 com_err(ctx->program_name, retval, "%s",
1218 _("while checking MMP block"));
1219 dump_mmp_msg(fs->mmp_buf, NULL);
1220 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1221 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1222 com_err(ctx->program_name, retval, "%s",
1223 _("while checking MMP block"));
1224 dump_mmp_msg(fs->mmp_buf,
1225 _("If you are sure the filesystem is not "
1226 "in use on any node, run:\n"
1227 "'tune2fs -f -E clear_mmp {device}'\n"));
1228 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1229 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1230 ext2fs_mmp_clear(fs);
1231 retval = 0;
1232 }
1233 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1234 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1235 ext2fs_mmp_clear(fs);
1236 retval = 0;
1237 }
1238 } else
1239 com_err(ctx->program_name, retval, "%s",
1240 _("while reading MMP block"));
1241 return retval;
1242 }
1243
1244 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1245 {
1246 errcode_t retval = ENOMEM;
1247 char *tdb_dir = NULL, *tdb_file = NULL;
1248 char *dev_name, *tmp_name;
1249 int free_tdb_dir = 0;
1250
1251 /* (re)open a specific undo file */
1252 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1253 retval = set_undo_io_backing_manager(*io_ptr);
1254 if (retval)
1255 goto err;
1256 *io_ptr = undo_io_manager;
1257 retval = set_undo_io_backup_file(ctx->undo_file);
1258 if (retval)
1259 goto err;
1260 printf(_("Overwriting existing filesystem; this can be undone "
1261 "using the command:\n"
1262 " e2undo %s %s\n\n"),
1263 ctx->undo_file, ctx->filesystem_name);
1264 return retval;
1265 }
1266
1267 /*
1268 * Configuration via a conf file would be
1269 * nice
1270 */
1271 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1272 if (!tdb_dir) {
1273 profile_get_string(ctx->profile, "defaults",
1274 "undo_dir", 0, "/var/lib/e2fsprogs",
1275 &tdb_dir);
1276 free_tdb_dir = 1;
1277 }
1278
1279 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1280 access(tdb_dir, W_OK)) {
1281 if (free_tdb_dir)
1282 free(tdb_dir);
1283 return 0;
1284 }
1285
1286 tmp_name = strdup(ctx->filesystem_name);
1287 if (!tmp_name)
1288 goto errout;
1289 dev_name = basename(tmp_name);
1290 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1291 if (!tdb_file) {
1292 free(tmp_name);
1293 goto errout;
1294 }
1295 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1296 free(tmp_name);
1297
1298 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1299 retval = errno;
1300 com_err(ctx->program_name, retval,
1301 _("while trying to delete %s"), tdb_file);
1302 goto errout;
1303 }
1304
1305 retval = set_undo_io_backing_manager(*io_ptr);
1306 if (retval)
1307 goto errout;
1308 *io_ptr = undo_io_manager;
1309 retval = set_undo_io_backup_file(tdb_file);
1310 if (retval)
1311 goto errout;
1312 printf(_("Overwriting existing filesystem; this can be undone "
1313 "using the command:\n"
1314 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1315
1316 if (free_tdb_dir)
1317 free(tdb_dir);
1318 free(tdb_file);
1319 return 0;
1320
1321 errout:
1322 if (free_tdb_dir)
1323 free(tdb_dir);
1324 free(tdb_file);
1325 err:
1326 com_err(ctx->program_name, retval, "%s",
1327 _("while trying to setup undo file\n"));
1328 return retval;
1329 }
1330
1331 int main (int argc, char *argv[])
1332 {
1333 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1334 int exit_value = FSCK_OK;
1335 ext2_filsys fs = 0;
1336 io_manager io_ptr;
1337 struct ext2_super_block *sb;
1338 const char *lib_ver_date;
1339 int my_ver, lib_ver;
1340 e2fsck_t ctx;
1341 blk64_t orig_superblock;
1342 struct problem_context pctx;
1343 int flags, run_result, was_changed;
1344 int journal_size;
1345 int sysval, sys_page_size = 4096;
1346 int old_bitmaps;
1347 __u32 features[3];
1348 char *cp;
1349 enum quota_type qtype;
1350
1351 clear_problem_context(&pctx);
1352 sigcatcher_setup();
1353 #ifdef MTRACE
1354 mtrace();
1355 #endif
1356 #ifdef MCHECK
1357 mcheck(0);
1358 #endif
1359 #ifdef ENABLE_NLS
1360 setlocale(LC_MESSAGES, "");
1361 setlocale(LC_CTYPE, "");
1362 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1363 textdomain(NLS_CAT_NAME);
1364 set_com_err_gettext(gettext);
1365 #endif
1366 my_ver = ext2fs_parse_version_string(my_ver_string);
1367 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1368 if (my_ver > lib_ver) {
1369 fprintf( stderr, "%s",
1370 _("Error: ext2fs library version out of date!\n"));
1371 show_version_only++;
1372 }
1373
1374 retval = PRS(argc, argv, &ctx);
1375 if (retval) {
1376 com_err("e2fsck", retval, "%s",
1377 _("while trying to initialize program"));
1378 exit(FSCK_ERROR);
1379 }
1380 reserve_stdio_fds();
1381
1382 set_up_logging(ctx);
1383 if (ctx->logf) {
1384 int i;
1385 fputs("E2fsck run: ", ctx->logf);
1386 for (i = 0; i < argc; i++) {
1387 if (i)
1388 fputc(' ', ctx->logf);
1389 fputs(argv[i], ctx->logf);
1390 }
1391 fputc('\n', ctx->logf);
1392 }
1393
1394 init_resource_track(&ctx->global_rtrack, NULL);
1395 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1396 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1397 my_ver_date);
1398
1399 if (show_version_only) {
1400 log_err(ctx, _("\tUsing %s, %s\n"),
1401 error_message(EXT2_ET_BASE), lib_ver_date);
1402 exit(FSCK_OK);
1403 }
1404
1405 check_mount(ctx);
1406
1407 if (!(ctx->options & E2F_OPT_PREEN) &&
1408 !(ctx->options & E2F_OPT_NO) &&
1409 !(ctx->options & E2F_OPT_YES)) {
1410 if (!ctx->interactive)
1411 fatal_error(ctx,
1412 _("need terminal for interactive repairs"));
1413 }
1414 ctx->superblock = ctx->use_superblock;
1415
1416 flags = EXT2_FLAG_SKIP_MMP;
1417 restart:
1418 #ifdef CONFIG_TESTIO_DEBUG
1419 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1420 io_ptr = test_io_manager;
1421 test_io_backing_manager = unix_io_manager;
1422 } else
1423 #endif
1424 io_ptr = unix_io_manager;
1425 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1426 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1427 &old_bitmaps);
1428 if (!old_bitmaps)
1429 flags |= EXT2_FLAG_64BITS;
1430 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1431 flags |= EXT2_FLAG_RW;
1432 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1433 ctx->mount_flags & EXT2_MF_READONLY))
1434 flags |= EXT2_FLAG_EXCLUSIVE;
1435 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1436 (ctx->options & E2F_OPT_FORCE))
1437 flags &= ~EXT2_FLAG_EXCLUSIVE;
1438 }
1439
1440 if (ctx->undo_file) {
1441 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1442 if (retval)
1443 exit(FSCK_ERROR);
1444 }
1445
1446 ctx->openfs_flags = flags;
1447 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1448
1449 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1450 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1451 ((retval == EXT2_ET_BAD_MAGIC) ||
1452 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1453 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1454 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1455 if (retval) {
1456 pctx.errcode = retval;
1457 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1458 }
1459 if (retval2) {
1460 pctx.errcode = retval2;
1461 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1462 }
1463 pctx.errcode = 0;
1464 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1465 retval = retval2;
1466 goto failure;
1467 }
1468 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1469 ext2fs_free(fs);
1470 fs = NULL;
1471 }
1472 if (!fs || (fs->group_desc_count > 1)) {
1473 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1474 ctx->program_name,
1475 retval ? _("Superblock invalid,") :
1476 _("Group descriptors look bad..."));
1477 orig_superblock = ctx->superblock;
1478 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1479 if (fs)
1480 ext2fs_close_free(&fs);
1481 orig_retval = retval;
1482 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1483 if ((orig_retval == 0) && retval != 0) {
1484 if (fs)
1485 ext2fs_close_free(&fs);
1486 log_out(ctx, _("%s: %s while using the "
1487 "backup blocks"),
1488 ctx->program_name,
1489 error_message(retval));
1490 log_out(ctx, _("%s: going back to original "
1491 "superblock\n"),
1492 ctx->program_name);
1493 ctx->superblock = orig_superblock;
1494 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1495 }
1496 }
1497 }
1498 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1499 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1500 fs && fs->super) {
1501 sb = fs->super;
1502 features[0] = (sb->s_feature_compat &
1503 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1504 features[1] = (sb->s_feature_incompat &
1505 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1506 features[2] = (sb->s_feature_ro_compat &
1507 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1508 if (features[0] || features[1] || features[2])
1509 goto print_unsupp_features;
1510 }
1511 failure:
1512 if (retval) {
1513 if (orig_retval)
1514 retval = orig_retval;
1515 com_err(ctx->program_name, retval, _("while trying to open %s"),
1516 ctx->filesystem_name);
1517 if (retval == EXT2_ET_REV_TOO_HIGH) {
1518 log_out(ctx, "%s",
1519 _("The filesystem revision is apparently "
1520 "too high for this version of e2fsck.\n"
1521 "(Or the filesystem superblock "
1522 "is corrupt)\n\n"));
1523 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1524 } else if (retval == EXT2_ET_SHORT_READ)
1525 log_out(ctx, "%s",
1526 _("Could this be a zero-length partition?\n"));
1527 else if ((retval == EPERM) || (retval == EACCES))
1528 log_out(ctx, _("You must have %s access to the "
1529 "filesystem or be root\n"),
1530 (ctx->options & E2F_OPT_READONLY) ?
1531 "r/o" : "r/w");
1532 else if (retval == ENXIO)
1533 log_out(ctx, "%s",
1534 _("Possibly non-existent or swap device?\n"));
1535 else if (retval == EBUSY)
1536 log_out(ctx, "%s", _("Filesystem mounted or opened "
1537 "exclusively by another program?\n"));
1538 else if (retval == ENOENT)
1539 log_out(ctx, "%s",
1540 _("Possibly non-existent device?\n"));
1541 #ifdef EROFS
1542 else if (retval == EROFS)
1543 log_out(ctx, "%s", _("Disk write-protected; use the "
1544 "-n option to do a read-only\n"
1545 "check of the device.\n"));
1546 #endif
1547 else {
1548 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1549 if (retval == EXT2_ET_BAD_MAGIC)
1550 check_plausibility(ctx->filesystem_name,
1551 CHECK_FS_EXIST, NULL);
1552 }
1553 fatal_error(ctx, 0);
1554 }
1555 /*
1556 * We only update the master superblock because (a) paranoia;
1557 * we don't want to corrupt the backup superblocks, and (b) we
1558 * don't need to update the mount count and last checked
1559 * fields in the backup superblock (the kernel doesn't update
1560 * the backup superblocks anyway). With newer versions of the
1561 * library this flag is set by ext2fs_open2(), but we set this
1562 * here just to be sure. (No, we don't support e2fsck running
1563 * with some other libext2fs than the one that it was shipped
1564 * with, but just in case....)
1565 */
1566 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1567
1568 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1569 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1570 int need_restart = 0;
1571
1572 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1573 blocksize,
1574 &ctx->num_blocks);
1575 /*
1576 * The floppy driver refuses to allow anyone else to
1577 * open the device if has been opened with O_EXCL;
1578 * this is unlike other block device drivers in Linux.
1579 * To handle this, we close the filesystem and then
1580 * reopen the filesystem after we get the device size.
1581 */
1582 if (pctx.errcode == EBUSY) {
1583 ext2fs_close_free(&fs);
1584 need_restart++;
1585 pctx.errcode =
1586 ext2fs_get_device_size2(ctx->filesystem_name,
1587 blocksize,
1588 &ctx->num_blocks);
1589 }
1590 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1591 ctx->num_blocks = 0;
1592 else if (pctx.errcode) {
1593 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1594 ctx->flags |= E2F_FLAG_ABORT;
1595 fatal_error(ctx, 0);
1596 }
1597 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1598 if (need_restart)
1599 goto restart;
1600 }
1601
1602 ctx->fs = fs;
1603 fs->now = ctx->now;
1604 sb = fs->super;
1605
1606 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1607 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1608 _("while trying to open %s"),
1609 ctx->filesystem_name);
1610 get_newer:
1611 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1612 }
1613
1614 /*
1615 * Set the device name, which is used whenever we print error
1616 * or informational messages to the user.
1617 */
1618 if (ctx->device_name == 0 &&
1619 (sb->s_volume_name[0] != 0)) {
1620 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1621 sizeof(sb->s_volume_name));
1622 }
1623 if (ctx->device_name == 0)
1624 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1625 for (cp = ctx->device_name; *cp; cp++)
1626 if (isspace(*cp) || *cp == ':')
1627 *cp = '_';
1628
1629 ehandler_init(fs->io);
1630
1631 if (ext2fs_has_feature_mmp(fs->super) &&
1632 (flags & EXT2_FLAG_SKIP_MMP)) {
1633 if (e2fsck_check_mmp(fs, ctx))
1634 fatal_error(ctx, 0);
1635
1636 /*
1637 * Restart in order to reopen fs but this time start mmp.
1638 */
1639 ext2fs_close_free(&ctx->fs);
1640 flags &= ~EXT2_FLAG_SKIP_MMP;
1641 goto restart;
1642 }
1643
1644 if (ctx->logf)
1645 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1646 e2p_uuid2str(sb->s_uuid));
1647
1648 /*
1649 * Make sure the ext3 superblock fields are consistent.
1650 */
1651 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1652 retval = e2fsck_check_ext3_journal(ctx);
1653 if (retval) {
1654 com_err(ctx->program_name, retval,
1655 _("while checking journal for %s"),
1656 ctx->device_name);
1657 fatal_error(ctx,
1658 _("Cannot proceed with file system check"));
1659 }
1660 }
1661
1662 /*
1663 * Check to see if we need to do ext3-style recovery. If so,
1664 * do it, and then restart the fsck.
1665 */
1666 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1667 if (ctx->options & E2F_OPT_READONLY) {
1668 log_out(ctx, "%s",
1669 _("Warning: skipping journal recovery because "
1670 "doing a read-only filesystem check.\n"));
1671 io_channel_flush(ctx->fs->io);
1672 } else {
1673 if (ctx->flags & E2F_FLAG_RESTARTED) {
1674 /*
1675 * Whoops, we attempted to run the
1676 * journal twice. This should never
1677 * happen, unless the hardware or
1678 * device driver is being bogus.
1679 */
1680 com_err(ctx->program_name, 0,
1681 _("unable to set superblock flags "
1682 "on %s\n"), ctx->device_name);
1683 fatal_error(ctx, 0);
1684 }
1685 retval = e2fsck_run_ext3_journal(ctx);
1686 if (retval == EFSBADCRC) {
1687 log_out(ctx, _("Journal checksum error "
1688 "found in %s\n"),
1689 ctx->device_name);
1690 } else if (retval == EFSCORRUPTED) {
1691 log_out(ctx, _("Journal corrupted in %s\n"),
1692 ctx->device_name);
1693 } else if (retval) {
1694 com_err(ctx->program_name, retval,
1695 _("while recovering journal of %s"),
1696 ctx->device_name);
1697 }
1698 ext2fs_close_free(&ctx->fs);
1699 ctx->flags |= E2F_FLAG_RESTARTED;
1700 goto restart;
1701 }
1702 }
1703
1704 /*
1705 * Check for compatibility with the feature sets. We need to
1706 * be more stringent than ext2fs_open().
1707 */
1708 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1709 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1710 features[2] = (sb->s_feature_ro_compat &
1711 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1712 print_unsupp_features:
1713 if (features[0] || features[1] || features[2]) {
1714 int i, j;
1715 __u32 *mask = features, m;
1716
1717 log_err(ctx, _("%s has unsupported feature(s):"),
1718 ctx->filesystem_name);
1719
1720 for (i=0; i <3; i++,mask++) {
1721 for (j=0,m=1; j < 32; j++, m<<=1) {
1722 if (*mask & m)
1723 log_err(ctx, " %s",
1724 e2p_feature2string(i, m));
1725 }
1726 }
1727 log_err(ctx, "\n");
1728 goto get_newer;
1729 }
1730
1731 /*
1732 * If the user specified a specific superblock, presumably the
1733 * master superblock has been trashed. So we mark the
1734 * superblock as dirty, so it can be written out.
1735 */
1736 if (ctx->superblock &&
1737 !(ctx->options & E2F_OPT_READONLY))
1738 ext2fs_mark_super_dirty(fs);
1739
1740 /*
1741 * Calculate the number of filesystem blocks per pagesize. If
1742 * fs->blocksize > page_size, set the number of blocks per
1743 * pagesize to 1 to avoid division by zero errors.
1744 */
1745 #ifdef _SC_PAGESIZE
1746 sysval = sysconf(_SC_PAGESIZE);
1747 if (sysval > 0)
1748 sys_page_size = sysval;
1749 #endif /* _SC_PAGESIZE */
1750 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1751 if (ctx->blocks_per_page == 0)
1752 ctx->blocks_per_page = 1;
1753
1754 if (ctx->superblock)
1755 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1756 ext2fs_mark_valid(fs);
1757 check_super_block(ctx);
1758 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1759 fatal_error(ctx, 0);
1760 check_if_skip(ctx);
1761 check_resize_inode(ctx);
1762 if (bad_blocks_file)
1763 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1764 else if (cflag)
1765 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1766 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1767 fatal_error(ctx, 0);
1768
1769 /*
1770 * Mark the system as valid, 'til proven otherwise
1771 */
1772 ext2fs_mark_valid(fs);
1773
1774 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1775 if (retval) {
1776 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1777 ctx->program_name, error_message(retval));
1778 preenhalt(ctx);
1779 log_out(ctx, "%s", _("This doesn't bode well, "
1780 "but we'll try to go on...\n"));
1781 }
1782
1783 /*
1784 * Save the journal size in megabytes.
1785 * Try and use the journal size from the backup else let e2fsck
1786 * find the default journal size.
1787 */
1788 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1789 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1790 (sb->s_jnl_blocks[16] >> 20);
1791 else
1792 journal_size = -1;
1793
1794 if (ext2fs_has_feature_quota(sb)) {
1795 /* Quotas were enabled. Do quota accounting during fsck. */
1796 clear_problem_context(&pctx);
1797 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1798 if (pctx.errcode) {
1799 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1800 fatal_error(ctx, 0);
1801 }
1802 }
1803
1804 run_result = e2fsck_run(ctx);
1805 e2fsck_clear_progbar(ctx);
1806
1807 if (!ctx->invalid_bitmaps &&
1808 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1809 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1810 if (journal_size < 1024)
1811 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1812 if (journal_size < 0) {
1813 ext2fs_clear_feature_journal(fs->super);
1814 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1815 log_out(ctx, "%s: Couldn't determine "
1816 "journal size\n", ctx->program_name);
1817 goto no_journal;
1818 }
1819 log_out(ctx, _("Creating journal (%d blocks): "),
1820 journal_size);
1821 fflush(stdout);
1822 retval = ext2fs_add_journal_inode(fs,
1823 journal_size, 0);
1824 if (retval) {
1825 log_out(ctx, "%s: while trying to create "
1826 "journal\n", error_message(retval));
1827 goto no_journal;
1828 }
1829 log_out(ctx, "%s", _(" Done.\n"));
1830 log_out(ctx, "%s",
1831 _("\n*** journal has been regenerated ***\n"));
1832 }
1833 }
1834 no_journal:
1835
1836 if (run_result & E2F_FLAG_ABORT) {
1837 fatal_error(ctx, _("aborted"));
1838 } else if (run_result & E2F_FLAG_CANCEL) {
1839 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1840 ctx->device_name : ctx->filesystem_name);
1841 exit_value |= FSCK_CANCELED;
1842 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1843 int needs_writeout;
1844
1845 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1846 if (*quota_sb_inump(sb, qtype) == 0)
1847 continue;
1848 needs_writeout = 0;
1849 pctx.num = qtype;
1850 retval = quota_compare_and_update(ctx->qctx, qtype,
1851 &needs_writeout);
1852 if ((retval || needs_writeout) &&
1853 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1854 pctx.errcode = quota_write_inode(ctx->qctx,
1855 1 << qtype);
1856 if (pctx.errcode)
1857 (void) fix_problem(ctx,
1858 PR_6_WRITE_QUOTAS, &pctx);
1859 }
1860 }
1861 quota_release_context(&ctx->qctx);
1862 }
1863
1864 if (run_result == E2F_FLAG_RESTART) {
1865 log_out(ctx, "%s",
1866 _("Restarting e2fsck from the beginning...\n"));
1867 retval = e2fsck_reset_context(ctx);
1868 if (retval) {
1869 com_err(ctx->program_name, retval, "%s",
1870 _("while resetting context"));
1871 fatal_error(ctx, 0);
1872 }
1873 ext2fs_close_free(&ctx->fs);
1874 goto restart;
1875 }
1876
1877 #ifdef MTRACE
1878 mtrace_print("Cleanup");
1879 #endif
1880 was_changed = ext2fs_test_changed(fs);
1881 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1882 !(ctx->options & E2F_OPT_READONLY)) {
1883 if (ext2fs_test_valid(fs)) {
1884 if (!(sb->s_state & EXT2_VALID_FS))
1885 exit_value |= FSCK_NONDESTRUCT;
1886 sb->s_state = EXT2_VALID_FS;
1887 if (check_backup_super_block(ctx))
1888 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1889 } else
1890 sb->s_state &= ~EXT2_VALID_FS;
1891 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1892 sb->s_lastcheck = ctx->now;
1893 sb->s_mnt_count = 0;
1894 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1895 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1896 if (pctx.errcode)
1897 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1898 ext2fs_mark_super_dirty(fs);
1899 }
1900
1901 if (!(ctx->options & E2F_OPT_READONLY)) {
1902 e2fsck_write_bitmaps(ctx);
1903 if (fs->flags & EXT2_FLAG_DIRTY) {
1904 pctx.errcode = ext2fs_flush(ctx->fs);
1905 if (pctx.errcode)
1906 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1907 }
1908 pctx.errcode = io_channel_flush(ctx->fs->io);
1909 if (pctx.errcode)
1910 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1911 }
1912
1913 if (was_changed) {
1914 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
1915
1916 if (fs_fixed)
1917 exit_value |= FSCK_NONDESTRUCT;
1918 if (!(ctx->options & E2F_OPT_PREEN)) {
1919 #if 0 /* Do this later; it breaks too many tests' golden outputs */
1920 log_out(ctx, fs_fixed ?
1921 _("\n%s: ***** FILE SYSTEM ERRORS "
1922 "CORRECTED *****\n") :
1923 _("%s: File system was modified.\n"),
1924 ctx->device_name);
1925 #else
1926 log_out(ctx,
1927 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1928 ctx->device_name);
1929 #endif
1930 }
1931 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1932 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
1933 ctx->device_name);
1934 exit_value |= FSCK_REBOOT;
1935 }
1936 }
1937 if (!ext2fs_test_valid(fs) ||
1938 ((exit_value & FSCK_CANCELED) &&
1939 (sb->s_state & EXT2_ERROR_FS))) {
1940 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
1941 "errors **********\n\n"), ctx->device_name);
1942 exit_value |= FSCK_UNCORRECTED;
1943 exit_value &= ~FSCK_NONDESTRUCT;
1944 }
1945 if (exit_value & FSCK_CANCELED) {
1946 int allow_cancellation;
1947
1948 profile_get_boolean(ctx->profile, "options",
1949 "allow_cancellation", 0, 0,
1950 &allow_cancellation);
1951 exit_value &= ~FSCK_NONDESTRUCT;
1952 if (allow_cancellation && ext2fs_test_valid(fs) &&
1953 (sb->s_state & EXT2_VALID_FS) &&
1954 !(sb->s_state & EXT2_ERROR_FS))
1955 exit_value = 0;
1956 } else
1957 show_stats(ctx);
1958
1959 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
1960
1961 ext2fs_close_free(&ctx->fs);
1962 free(ctx->journal_name);
1963
1964 if (ctx->logf)
1965 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
1966 e2fsck_free_context(ctx);
1967 remove_error_table(&et_ext2_error_table);
1968 remove_error_table(&et_prof_error_table);
1969 return exit_value;
1970 }
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