]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blob - e2fsck/unix.c
projects / thirdparty / e2fsprogs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
AOSP: e2fsck: allow read-only testing if -E unshare_blocks will succeed
[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 = 0, frag_percent_dir = 0, frag_percent_total = 0;
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 if (inodes_used > 0) {
123 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
124 frag_percent_file = (frag_percent_file + 5) / 10;
125
126 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
127 frag_percent_dir = (frag_percent_dir + 5) / 10;
128
129 frag_percent_total = ((10000 * (ctx->fs_fragmented +
130 ctx->fs_fragmented_dir))
131 / inodes_used);
132 frag_percent_total = (frag_percent_total + 5) / 10;
133 }
134
135 if (!verbose) {
136 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
137 "%llu/%llu blocks\n"),
138 ctx->device_name, inodes_used, inodes,
139 frag_percent_total / 10, frag_percent_total % 10,
140 blocks_used, blocks);
141 return;
142 }
143 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
144 &i);
145 if (verbose && i) {
146 log_out(ctx, "\nFilesystem features:");
147 mask = &ctx->fs->super->s_feature_compat;
148 for (i = 0; i < 3; i++, mask++) {
149 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
150 if (*mask & m) {
151 log_out(ctx, " %s",
152 e2p_feature2string(i, m));
153 printed++;
154 }
155 }
156 }
157 if (printed == 0)
158 log_out(ctx, " (none)");
159 log_out(ctx, "\n");
160 }
161
162 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
163 "\n%12u inodes used (%2.2f%%, out of %u)\n",
164 inodes_used), inodes_used,
165 100.0 * inodes_used / inodes, inodes);
166 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
167 "%12u non-contiguous files (%0d.%d%%)\n",
168 ctx->fs_fragmented),
169 ctx->fs_fragmented, frag_percent_file / 10,
170 frag_percent_file % 10);
171 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
172 "%12u non-contiguous directories (%0d.%d%%)\n",
173 ctx->fs_fragmented_dir),
174 ctx->fs_fragmented_dir, frag_percent_dir / 10,
175 frag_percent_dir % 10);
176 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
177 "%u/%u/%u\n"),
178 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
179
180 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
181 if (ctx->extent_depth_count[j])
182 break;
183 if (++j) {
184 log_out(ctx, "%s", _(" Extent depth histogram: "));
185 for (i=0; i < j; i++) {
186 if (i)
187 fputc('/', stdout);
188 log_out(ctx, "%u", ctx->extent_depth_count[i]);
189 }
190 log_out(ctx, "\n");
191 }
192
193 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
194 "%12llu blocks used (%2.2f%%, out of %llu)\n",
195 blocks_used),
196 blocks_used, 100.0 * blocks_used / blocks, blocks);
197 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
198 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
199 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
200 ctx->large_files), ctx->large_files);
201 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
202 ctx->fs_regular_count), ctx->fs_regular_count);
203 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
204 ctx->fs_directory_count), ctx->fs_directory_count);
205 log_out(ctx, P_("%12u character device file\n",
206 "%12u character device files\n", ctx->fs_chardev_count),
207 ctx->fs_chardev_count);
208 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
209 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
210 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
211 ctx->fs_fifo_count);
212 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
213 ctx->fs_links_count - dir_links);
214 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
215 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
216 log_out(ctx, P_(" (%u fast symbolic link)\n",
217 " (%u fast symbolic links)\n",
218 ctx->fs_fast_symlinks_count),
219 ctx->fs_fast_symlinks_count);
220 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
221 ctx->fs_sockets_count),
222 ctx->fs_sockets_count);
223 log_out(ctx, "------------\n");
224 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
225 num_files);
226 }
227
228 static void check_mount(e2fsck_t ctx)
229 {
230 errcode_t retval;
231 int cont;
232
233 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
234 &ctx->mount_flags);
235 if (retval) {
236 com_err("ext2fs_check_if_mount", retval,
237 _("while determining whether %s is mounted."),
238 ctx->filesystem_name);
239 return;
240 }
241
242 /*
243 * If the filesystem isn't mounted, or it's the root
244 * filesystem and it's mounted read-only, and we're not doing
245 * a read/write check, then everything's fine.
246 */
247 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
248 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
249 (ctx->mount_flags & EXT2_MF_READONLY) &&
250 !(ctx->options & E2F_OPT_WRITECHECK)))
251 return;
252
253 if (((ctx->options & E2F_OPT_READONLY) ||
254 ((ctx->options & E2F_OPT_FORCE) &&
255 (ctx->mount_flags & EXT2_MF_READONLY))) &&
256 !(ctx->options & E2F_OPT_WRITECHECK)) {
257 if (ctx->mount_flags & EXT2_MF_MOUNTED)
258 log_out(ctx, _("Warning! %s is mounted.\n"),
259 ctx->filesystem_name);
260 else
261 log_out(ctx, _("Warning! %s is in use.\n"),
262 ctx->filesystem_name);
263 return;
264 }
265
266 if (ctx->mount_flags & EXT2_MF_MOUNTED)
267 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
268 else
269 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
270 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
271 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
272 puts("\007\007\007\007");
273 log_out(ctx, "%s", _("\n\nWARNING!!! "
274 "The filesystem is mounted. "
275 "If you continue you ***WILL***\n"
276 "cause ***SEVERE*** filesystem damage.\n\n"));
277 puts("\007\007\007");
278 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
279 if (!cont) {
280 printf("%s", _("check aborted.\n"));
281 exit (0);
282 }
283 return;
284 }
285
286 static int is_on_batt(void)
287 {
288 FILE *f;
289 DIR *d;
290 char tmp[80], tmp2[80], fname[80];
291 unsigned int acflag;
292 struct dirent* de;
293
294 f = fopen("/sys/class/power_supply/AC/online", "r");
295 if (f) {
296 if (fscanf(f, "%u\n", &acflag) == 1) {
297 fclose(f);
298 return (!acflag);
299 }
300 fclose(f);
301 }
302 f = fopen("/proc/apm", "r");
303 if (f) {
304 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
305 acflag = 1;
306 fclose(f);
307 return (acflag != 1);
308 }
309 d = opendir("/proc/acpi/ac_adapter");
310 if (d) {
311 while ((de=readdir(d)) != NULL) {
312 if (!strncmp(".", de->d_name, 1))
313 continue;
314 snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
315 de->d_name);
316 f = fopen(fname, "r");
317 if (!f)
318 continue;
319 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
320 tmp[0] = 0;
321 fclose(f);
322 if (strncmp(tmp, "off-line", 8) == 0) {
323 closedir(d);
324 return 1;
325 }
326 }
327 closedir(d);
328 }
329 return 0;
330 }
331
332 /*
333 * This routine checks to see if a filesystem can be skipped; if so,
334 * it will exit with E2FSCK_OK. Under some conditions it will print a
335 * message explaining why a check is being forced.
336 */
337 static void check_if_skip(e2fsck_t ctx)
338 {
339 ext2_filsys fs = ctx->fs;
340 struct problem_context pctx;
341 const char *reason = NULL;
342 unsigned int reason_arg = 0;
343 long next_check;
344 int batt = is_on_batt();
345 int defer_check_on_battery;
346 int broken_system_clock;
347 time_t lastcheck;
348
349 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
350 return;
351
352 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
353 0, 0, &broken_system_clock);
354 if (ctx->flags & E2F_FLAG_TIME_INSANE)
355 broken_system_clock = 1;
356 profile_get_boolean(ctx->profile, "options",
357 "defer_check_on_battery", 0, 1,
358 &defer_check_on_battery);
359 if (!defer_check_on_battery)
360 batt = 0;
361
362 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
363 return;
364
365 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
366 goto skip;
367
368 lastcheck = fs->super->s_lastcheck;
369 if (lastcheck > ctx->now)
370 lastcheck -= ctx->time_fudge;
371 if ((fs->super->s_state & EXT2_ERROR_FS) ||
372 !ext2fs_test_valid(fs))
373 reason = _(" contains a file system with errors");
374 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
375 reason = _(" was not cleanly unmounted");
376 else if (check_backup_super_block(ctx))
377 reason = _(" primary superblock features different from backup");
378 else if ((fs->super->s_max_mnt_count > 0) &&
379 (fs->super->s_mnt_count >=
380 (unsigned) fs->super->s_max_mnt_count)) {
381 reason = _(" has been mounted %u times without being checked");
382 reason_arg = fs->super->s_mnt_count;
383 if (batt && (fs->super->s_mnt_count <
384 (unsigned) fs->super->s_max_mnt_count*2))
385 reason = 0;
386 } else if (!broken_system_clock && fs->super->s_checkinterval &&
387 (ctx->now < lastcheck)) {
388 reason = _(" has filesystem last checked time in the future");
389 if (batt)
390 reason = 0;
391 } else if (!broken_system_clock && fs->super->s_checkinterval &&
392 ((ctx->now - lastcheck) >=
393 ((time_t) fs->super->s_checkinterval))) {
394 reason = _(" has gone %u days without being checked");
395 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
396 if (batt && ((ctx->now - fs->super->s_lastcheck) <
397 fs->super->s_checkinterval*2))
398 reason = 0;
399 } else if (broken_system_clock && fs->super->s_checkinterval) {
400 log_out(ctx, "%s: ", ctx->device_name);
401 log_out(ctx, "%s",
402 _("ignoring check interval, broken_system_clock set\n"));
403 }
404
405 if (reason) {
406 log_out(ctx, "%s", ctx->device_name);
407 log_out(ctx, reason, reason_arg);
408 log_out(ctx, "%s", _(", check forced.\n"));
409 return;
410 }
411
412 /*
413 * Update the global counts from the block group counts. This
414 * is needed since modern kernels don't update the global
415 * counts so as to avoid locking the entire file system. So
416 * if the filesystem is not unmounted cleanly, the global
417 * counts may not be accurate. Update them here if we can,
418 * for the benefit of users who might examine the file system
419 * using dumpe2fs. (This is for cosmetic reasons only.)
420 */
421 clear_problem_context(&pctx);
422 pctx.ino = fs->super->s_free_inodes_count;
423 pctx.ino2 = ctx->free_inodes;
424 if ((pctx.ino != pctx.ino2) &&
425 !(ctx->options & E2F_OPT_READONLY) &&
426 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
427 fs->super->s_free_inodes_count = ctx->free_inodes;
428 ext2fs_mark_super_dirty(fs);
429 }
430 clear_problem_context(&pctx);
431 pctx.blk = ext2fs_free_blocks_count(fs->super);
432 pctx.blk2 = ctx->free_blocks;
433 if ((pctx.blk != pctx.blk2) &&
434 !(ctx->options & E2F_OPT_READONLY) &&
435 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
436 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
437 ext2fs_mark_super_dirty(fs);
438 }
439
440 /* Print the summary message when we're skipping a full check */
441 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
442 ctx->device_name,
443 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
444 fs->super->s_inodes_count,
445 ext2fs_blocks_count(fs->super) -
446 ext2fs_free_blocks_count(fs->super),
447 ext2fs_blocks_count(fs->super));
448 next_check = 100000;
449 if (fs->super->s_max_mnt_count > 0) {
450 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
451 if (next_check <= 0)
452 next_check = 1;
453 }
454 if (!broken_system_clock && fs->super->s_checkinterval &&
455 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
456 next_check = 1;
457 if (next_check <= 5) {
458 if (next_check == 1) {
459 if (batt)
460 log_out(ctx, "%s",
461 _(" (check deferred; on battery)"));
462 else
463 log_out(ctx, "%s",
464 _(" (check after next mount)"));
465 } else
466 log_out(ctx, _(" (check in %ld mounts)"),
467 next_check);
468 }
469 log_out(ctx, "\n");
470 skip:
471 ext2fs_close_free(&ctx->fs);
472 e2fsck_free_context(ctx);
473 exit(FSCK_OK);
474 }
475
476 /*
477 * For completion notice
478 */
479 struct percent_tbl {
480 int max_pass;
481 int table[32];
482 };
483 static struct percent_tbl e2fsck_tbl = {
484 5, { 0, 70, 90, 92, 95, 100 }
485 };
486 static char bar[128], spaces[128];
487
488 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
489 int max)
490 {
491 float percent;
492
493 if (pass <= 0)
494 return 0.0;
495 if (pass > tbl->max_pass || max == 0)
496 return 100.0;
497 percent = ((float) curr) / ((float) max);
498 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
499 + tbl->table[pass-1]);
500 }
501
502 void e2fsck_clear_progbar(e2fsck_t ctx)
503 {
504 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
505 return;
506
507 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
508 ctx->stop_meta);
509 fflush(stdout);
510 ctx->flags &= ~E2F_FLAG_PROG_BAR;
511 }
512
513 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
514 unsigned int dpynum)
515 {
516 static const char spinner[] = "\\|/-";
517 int i;
518 unsigned int tick;
519 struct timeval tv;
520 int dpywidth;
521 int fixed_percent;
522
523 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
524 return 0;
525
526 /*
527 * Calculate the new progress position. If the
528 * percentage hasn't changed, then we skip out right
529 * away.
530 */
531 fixed_percent = (int) ((10 * percent) + 0.5);
532 if (ctx->progress_last_percent == fixed_percent)
533 return 0;
534 ctx->progress_last_percent = fixed_percent;
535
536 /*
537 * If we've already updated the spinner once within
538 * the last 1/8th of a second, no point doing it
539 * again.
540 */
541 gettimeofday(&tv, NULL);
542 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
543 if ((tick == ctx->progress_last_time) &&
544 (fixed_percent != 0) && (fixed_percent != 1000))
545 return 0;
546 ctx->progress_last_time = tick;
547
548 /*
549 * Advance the spinner, and note that the progress bar
550 * will be on the screen
551 */
552 ctx->progress_pos = (ctx->progress_pos+1) & 3;
553 ctx->flags |= E2F_FLAG_PROG_BAR;
554
555 dpywidth = 66 - strlen(label);
556 dpywidth = 8 * (dpywidth / 8);
557 if (dpynum)
558 dpywidth -= 8;
559
560 i = ((percent * dpywidth) + 50) / 100;
561 printf("%s%s: |%s%s", ctx->start_meta, label,
562 bar + (sizeof(bar) - (i+1)),
563 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
564 if (fixed_percent == 1000)
565 fputc('|', stdout);
566 else
567 fputc(spinner[ctx->progress_pos & 3], stdout);
568 printf(" %4.1f%% ", percent);
569 if (dpynum)
570 printf("%u\r", dpynum);
571 else
572 fputs(" \r", stdout);
573 fputs(ctx->stop_meta, stdout);
574
575 if (fixed_percent == 1000)
576 e2fsck_clear_progbar(ctx);
577 fflush(stdout);
578
579 return 0;
580 }
581
582 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
583 unsigned long cur, unsigned long max)
584 {
585 char buf[1024];
586 float percent;
587
588 if (pass == 0)
589 return 0;
590
591 if (ctx->progress_fd) {
592 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
593 pass, cur, max, ctx->device_name);
594 write_all(ctx->progress_fd, buf, strlen(buf));
595 } else {
596 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
597 e2fsck_simple_progress(ctx, ctx->device_name,
598 percent, 0);
599 }
600 return 0;
601 }
602
603 #define PATH_SET "PATH=/sbin"
604
605 /*
606 * Make sure 0,1,2 file descriptors are open, so that we don't open
607 * the filesystem using the same file descriptor as stdout or stderr.
608 */
609 static void reserve_stdio_fds(void)
610 {
611 int fd = 0;
612
613 while (fd <= 2) {
614 fd = open("/dev/null", O_RDWR);
615 if (fd < 0) {
616 fprintf(stderr, _("ERROR: Couldn't open "
617 "/dev/null (%s)\n"),
618 strerror(errno));
619 break;
620 }
621 }
622 }
623
624 #ifdef HAVE_SIGNAL_H
625 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
626 {
627 e2fsck_t ctx = e2fsck_global_ctx;
628
629 if (!ctx)
630 return;
631
632 ctx->progress = e2fsck_update_progress;
633 }
634
635 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
636 {
637 e2fsck_t ctx = e2fsck_global_ctx;
638
639 if (!ctx)
640 return;
641
642 e2fsck_clear_progbar(ctx);
643 ctx->progress = 0;
644 }
645
646 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
647 {
648 e2fsck_t ctx = e2fsck_global_ctx;
649
650 if (!ctx)
651 exit(FSCK_CANCELED);
652
653 ctx->flags |= E2F_FLAG_CANCEL;
654 }
655 #endif
656
657 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
658 {
659 char *buf, *token, *next, *p, *arg;
660 int ea_ver;
661 int extended_usage = 0;
662 unsigned long long reada_kb;
663
664 buf = string_copy(ctx, opts, 0);
665 for (token = buf; token && *token; token = next) {
666 p = strchr(token, ',');
667 next = 0;
668 if (p) {
669 *p = 0;
670 next = p+1;
671 }
672 arg = strchr(token, '=');
673 if (arg) {
674 *arg = 0;
675 arg++;
676 }
677 if (strcmp(token, "ea_ver") == 0) {
678 if (!arg) {
679 extended_usage++;
680 continue;
681 }
682 ea_ver = strtoul(arg, &p, 0);
683 if (*p ||
684 ((ea_ver != 1) && (ea_ver != 2))) {
685 fprintf(stderr, "%s",
686 _("Invalid EA version.\n"));
687 extended_usage++;
688 continue;
689 }
690 ctx->ext_attr_ver = ea_ver;
691 } else if (strcmp(token, "readahead_kb") == 0) {
692 if (!arg) {
693 extended_usage++;
694 continue;
695 }
696 reada_kb = strtoull(arg, &p, 0);
697 if (*p) {
698 fprintf(stderr, "%s",
699 _("Invalid readahead buffer size.\n"));
700 extended_usage++;
701 continue;
702 }
703 ctx->readahead_kb = reada_kb;
704 } else if (strcmp(token, "fragcheck") == 0) {
705 ctx->options |= E2F_OPT_FRAGCHECK;
706 continue;
707 } else if (strcmp(token, "journal_only") == 0) {
708 if (arg) {
709 extended_usage++;
710 continue;
711 }
712 ctx->options |= E2F_OPT_JOURNAL_ONLY;
713 } else if (strcmp(token, "discard") == 0) {
714 ctx->options |= E2F_OPT_DISCARD;
715 continue;
716 } else if (strcmp(token, "nodiscard") == 0) {
717 ctx->options &= ~E2F_OPT_DISCARD;
718 continue;
719 } else if (strcmp(token, "optimize_extents") == 0) {
720 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
721 continue;
722 } else if (strcmp(token, "no_optimize_extents") == 0) {
723 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
724 continue;
725 } else if (strcmp(token, "inode_count_fullmap") == 0) {
726 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
727 continue;
728 } else if (strcmp(token, "no_inode_count_fullmap") == 0) {
729 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
730 continue;
731 } else if (strcmp(token, "log_filename") == 0) {
732 if (!arg)
733 extended_usage++;
734 else
735 ctx->log_fn = string_copy(ctx, arg, 0);
736 continue;
737 } else if (strcmp(token, "bmap2extent") == 0) {
738 ctx->options |= E2F_OPT_CONVERT_BMAP;
739 continue;
740 } else if (strcmp(token, "fixes_only") == 0) {
741 ctx->options |= E2F_OPT_FIXES_ONLY;
742 continue;
743 } else if (strcmp(token, "unshare_blocks") == 0) {
744 ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
745 continue;
746 } else {
747 fprintf(stderr, _("Unknown extended option: %s\n"),
748 token);
749 extended_usage++;
750 }
751 }
752 free(buf);
753
754 if (extended_usage) {
755 fputs(_("\nExtended options are separated by commas, "
756 "and may take an argument which\n"
757 "is set off by an equals ('=') sign. "
758 "Valid extended options are:\n\n"), stderr);
759 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
760 fputs("\tfragcheck\n", stderr);
761 fputs("\tjournal_only\n", stderr);
762 fputs("\tdiscard\n", stderr);
763 fputs("\tnodiscard\n", stderr);
764 fputs("\toptimize_extents\n", stderr);
765 fputs("\tno_optimize_extents\n", stderr);
766 fputs("\tinode_count_fullmap\n", stderr);
767 fputs("\tno_inode_count_fullmap\n", stderr);
768 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
769 fputs("\tbmap2extent\n", stderr);
770 fputs("\tunshare_blocks\n", stderr);
771 fputs("\tfixes_only\n", stderr);
772 fputc('\n', stderr);
773 exit(1);
774 }
775 }
776
777 static void syntax_err_report(const char *filename, long err, int line_num)
778 {
779 fprintf(stderr,
780 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
781 filename, line_num, error_message(err));
782 exit(FSCK_ERROR);
783 }
784
785 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
786
787 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
788 {
789 int flush = 0;
790 int c, fd;
791 #ifdef MTRACE
792 extern void *mallwatch;
793 #endif
794 e2fsck_t ctx;
795 errcode_t retval;
796 #ifdef HAVE_SIGNAL_H
797 struct sigaction sa;
798 #endif
799 char *extended_opts = 0;
800 char *cp;
801 int res; /* result of sscanf */
802 #ifdef CONFIG_JBD_DEBUG
803 char *jbd_debug;
804 #endif
805 unsigned long long phys_mem_kb;
806
807 retval = e2fsck_allocate_context(&ctx);
808 if (retval)
809 return retval;
810
811 *ret_ctx = ctx;
812 e2fsck_global_ctx = ctx;
813
814 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
815 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
816 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
817 ctx->interactive = 1;
818 } else {
819 ctx->start_meta[0] = '\001';
820 ctx->stop_meta[0] = '\002';
821 }
822 memset(bar, '=', sizeof(bar)-1);
823 memset(spaces, ' ', sizeof(spaces)-1);
824 add_error_table(&et_ext2_error_table);
825 add_error_table(&et_prof_error_table);
826 blkid_get_cache(&ctx->blkid, NULL);
827
828 if (argc && *argv)
829 ctx->program_name = *argv;
830 else
831 ctx->program_name = "e2fsck";
832
833 phys_mem_kb = get_memory_size() / 1024;
834 ctx->readahead_kb = ~0ULL;
835 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
836 switch (c) {
837 case 'C':
838 ctx->progress = e2fsck_update_progress;
839 res = sscanf(optarg, "%d", &ctx->progress_fd);
840 if (res != 1)
841 goto sscanf_err;
842
843 if (ctx->progress_fd < 0) {
844 ctx->progress = 0;
845 ctx->progress_fd = ctx->progress_fd * -1;
846 }
847 if (!ctx->progress_fd)
848 break;
849 /* Validate the file descriptor to avoid disasters */
850 fd = dup(ctx->progress_fd);
851 if (fd < 0) {
852 fprintf(stderr,
853 _("Error validating file descriptor %d: %s\n"),
854 ctx->progress_fd,
855 error_message(errno));
856 fatal_error(ctx,
857 _("Invalid completion information file descriptor"));
858 } else
859 close(fd);
860 break;
861 case 'D':
862 ctx->options |= E2F_OPT_COMPRESS_DIRS;
863 break;
864 case 'E':
865 extended_opts = optarg;
866 break;
867 case 'p':
868 case 'a':
869 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
870 conflict_opt:
871 fatal_error(ctx,
872 _("Only one of the options -p/-a, -n or -y may be specified."));
873 }
874 ctx->options |= E2F_OPT_PREEN;
875 break;
876 case 'n':
877 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
878 goto conflict_opt;
879 ctx->options |= E2F_OPT_NO;
880 break;
881 case 'y':
882 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
883 goto conflict_opt;
884 ctx->options |= E2F_OPT_YES;
885 break;
886 case 't':
887 #ifdef RESOURCE_TRACK
888 if (ctx->options & E2F_OPT_TIME)
889 ctx->options |= E2F_OPT_TIME2;
890 else
891 ctx->options |= E2F_OPT_TIME;
892 #else
893 fprintf(stderr, _("The -t option is not "
894 "supported on this version of e2fsck.\n"));
895 #endif
896 break;
897 case 'c':
898 if (cflag++)
899 ctx->options |= E2F_OPT_WRITECHECK;
900 ctx->options |= E2F_OPT_CHECKBLOCKS;
901 break;
902 case 'r':
903 /* What we do by default, anyway! */
904 break;
905 case 'b':
906 res = sscanf(optarg, "%llu", &ctx->use_superblock);
907 if (res != 1)
908 goto sscanf_err;
909 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
910 break;
911 case 'B':
912 ctx->blocksize = atoi(optarg);
913 break;
914 case 'I':
915 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
916 if (res != 1)
917 goto sscanf_err;
918 break;
919 case 'j':
920 ctx->journal_name = blkid_get_devname(ctx->blkid,
921 optarg, NULL);
922 if (!ctx->journal_name) {
923 com_err(ctx->program_name, 0,
924 _("Unable to resolve '%s'"),
925 optarg);
926 fatal_error(ctx, 0);
927 }
928 break;
929 case 'P':
930 res = sscanf(optarg, "%d", &ctx->process_inode_size);
931 if (res != 1)
932 goto sscanf_err;
933 break;
934 case 'L':
935 replace_bad_blocks++;
936 case 'l':
937 if (bad_blocks_file)
938 free(bad_blocks_file);
939 bad_blocks_file = string_copy(ctx, optarg, 0);
940 break;
941 case 'd':
942 ctx->options |= E2F_OPT_DEBUG;
943 break;
944 case 'f':
945 ctx->options |= E2F_OPT_FORCE;
946 break;
947 case 'F':
948 flush = 1;
949 break;
950 case 'v':
951 verbose = 1;
952 break;
953 case 'V':
954 show_version_only = 1;
955 break;
956 #ifdef MTRACE
957 case 'M':
958 mallwatch = (void *) strtol(optarg, NULL, 0);
959 break;
960 #endif
961 case 'N':
962 ctx->device_name = string_copy(ctx, optarg, 0);
963 break;
964 case 'k':
965 keep_bad_blocks++;
966 break;
967 case 'z':
968 ctx->undo_file = optarg;
969 break;
970 default:
971 usage(ctx);
972 }
973 if (show_version_only)
974 return 0;
975 if (optind != argc - 1)
976 usage(ctx);
977 if ((ctx->options & E2F_OPT_NO) &&
978 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
979 com_err(ctx->program_name, 0, "%s",
980 _("The -n and -D options are incompatible."));
981 fatal_error(ctx, 0);
982 }
983 if ((ctx->options & E2F_OPT_NO) && cflag) {
984 com_err(ctx->program_name, 0, "%s",
985 _("The -n and -c options are incompatible."));
986 fatal_error(ctx, 0);
987 }
988 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
989 com_err(ctx->program_name, 0, "%s",
990 _("The -n and -l/-L options are incompatible."));
991 fatal_error(ctx, 0);
992 }
993 if (ctx->options & E2F_OPT_NO)
994 ctx->options |= E2F_OPT_READONLY;
995
996 ctx->io_options = strchr(argv[optind], '?');
997 if (ctx->io_options)
998 *ctx->io_options++ = 0;
999 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
1000 if (!ctx->filesystem_name) {
1001 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
1002 argv[optind]);
1003 fatal_error(ctx, 0);
1004 }
1005 if (extended_opts)
1006 parse_extended_opts(ctx, extended_opts);
1007
1008 /* Complain about mutually exclusive rebuilding activities */
1009 if (getenv("E2FSCK_FIXES_ONLY"))
1010 ctx->options |= E2F_OPT_FIXES_ONLY;
1011 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1012 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1013 com_err(ctx->program_name, 0, "%s",
1014 _("The -D and -E fixes_only options are incompatible."));
1015 fatal_error(ctx, 0);
1016 }
1017 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1018 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1019 com_err(ctx->program_name, 0, "%s",
1020 _("The -E bmap2extent and fixes_only options are incompatible."));
1021 fatal_error(ctx, 0);
1022 }
1023
1024 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1025 config_fn[0] = cp;
1026 profile_set_syntax_err_cb(syntax_err_report);
1027 profile_init(config_fn, &ctx->profile);
1028
1029 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1030 &c);
1031 if (c)
1032 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1033 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1034 &c);
1035 if (c)
1036 verbose = 1;
1037
1038 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1039 0, 0, &c);
1040 if (c)
1041 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1042
1043 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1044 0, 0, &c);
1045 if (c)
1046 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1047
1048 if (ctx->readahead_kb == ~0ULL) {
1049 profile_get_integer(ctx->profile, "options",
1050 "readahead_mem_pct", 0, -1, &c);
1051 if (c >= 0 && c <= 100)
1052 ctx->readahead_kb = phys_mem_kb * c / 100;
1053 profile_get_integer(ctx->profile, "options",
1054 "readahead_kb", 0, -1, &c);
1055 if (c >= 0)
1056 ctx->readahead_kb = c;
1057 if (ctx->readahead_kb != ~0ULL &&
1058 ctx->readahead_kb > phys_mem_kb)
1059 ctx->readahead_kb = phys_mem_kb;
1060 }
1061
1062 /* Turn off discard in read-only mode */
1063 if ((ctx->options & E2F_OPT_NO) &&
1064 (ctx->options & E2F_OPT_DISCARD))
1065 ctx->options &= ~E2F_OPT_DISCARD;
1066
1067 if (flush) {
1068 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1069 if (fd < 0) {
1070 com_err("open", errno,
1071 _("while opening %s for flushing"),
1072 ctx->filesystem_name);
1073 fatal_error(ctx, 0);
1074 }
1075 if ((retval = ext2fs_sync_device(fd, 1))) {
1076 com_err("ext2fs_sync_device", retval,
1077 _("while trying to flush %s"),
1078 ctx->filesystem_name);
1079 fatal_error(ctx, 0);
1080 }
1081 close(fd);
1082 }
1083 if (cflag && bad_blocks_file) {
1084 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1085 "be both used at the same time.\n"));
1086 exit(FSCK_USAGE);
1087 }
1088 #ifdef HAVE_SIGNAL_H
1089 /*
1090 * Set up signal action
1091 */
1092 memset(&sa, 0, sizeof(struct sigaction));
1093 sa.sa_handler = signal_cancel;
1094 sigaction(SIGINT, &sa, 0);
1095 sigaction(SIGTERM, &sa, 0);
1096 #ifdef SA_RESTART
1097 sa.sa_flags = SA_RESTART;
1098 #endif
1099 sa.sa_handler = signal_progress_on;
1100 sigaction(SIGUSR1, &sa, 0);
1101 sa.sa_handler = signal_progress_off;
1102 sigaction(SIGUSR2, &sa, 0);
1103 #endif
1104
1105 /* Update our PATH to include /sbin if we need to run badblocks */
1106 if (cflag) {
1107 char *oldpath = getenv("PATH");
1108 char *newpath;
1109 int len = sizeof(PATH_SET) + 1;
1110
1111 if (oldpath)
1112 len += strlen(oldpath);
1113
1114 newpath = malloc(len);
1115 if (!newpath)
1116 fatal_error(ctx, "Couldn't malloc() newpath");
1117 strcpy(newpath, PATH_SET);
1118
1119 if (oldpath) {
1120 strcat(newpath, ":");
1121 strcat(newpath, oldpath);
1122 }
1123 putenv(newpath);
1124 }
1125 #ifdef CONFIG_JBD_DEBUG
1126 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1127 if (jbd_debug) {
1128 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1129 if (res != 1) {
1130 fprintf(stderr,
1131 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1132 jbd_debug);
1133 exit (1);
1134 }
1135 }
1136 #endif
1137 return 0;
1138
1139 sscanf_err:
1140 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1141 c, optarg);
1142 exit (1);
1143 }
1144
1145 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1146 ext2_filsys *ret_fs)
1147 {
1148 errcode_t retval;
1149
1150 *ret_fs = NULL;
1151 if (ctx->superblock && ctx->blocksize) {
1152 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1153 flags, ctx->superblock, ctx->blocksize,
1154 io_ptr, ret_fs);
1155 } else if (ctx->superblock) {
1156 int blocksize;
1157 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1158 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1159 if (*ret_fs) {
1160 ext2fs_free(*ret_fs);
1161 *ret_fs = NULL;
1162 }
1163 retval = ext2fs_open2(ctx->filesystem_name,
1164 ctx->io_options, flags,
1165 ctx->superblock, blocksize,
1166 io_ptr, ret_fs);
1167 if (!retval)
1168 break;
1169 }
1170 } else
1171 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1172 flags, 0, 0, io_ptr, ret_fs);
1173
1174 if (retval == 0) {
1175 (*ret_fs)->priv_data = ctx;
1176 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1177 "default", NULL);
1178 }
1179 return retval;
1180 }
1181
1182 static const char *my_ver_string = E2FSPROGS_VERSION;
1183 static const char *my_ver_date = E2FSPROGS_DATE;
1184
1185 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1186 {
1187 struct mmp_struct *mmp_s;
1188 unsigned int mmp_check_interval;
1189 errcode_t retval = 0;
1190 struct problem_context pctx;
1191 unsigned int wait_time = 0;
1192
1193 clear_problem_context(&pctx);
1194 if (fs->mmp_buf == NULL) {
1195 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1196 if (retval)
1197 goto check_error;
1198 }
1199
1200 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1201 if (retval)
1202 goto check_error;
1203
1204 mmp_s = fs->mmp_buf;
1205
1206 mmp_check_interval = fs->super->s_mmp_update_interval;
1207 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1208 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1209
1210 /*
1211 * If check_interval in MMP block is larger, use that instead of
1212 * check_interval from the superblock.
1213 */
1214 if (mmp_s->mmp_check_interval > mmp_check_interval)
1215 mmp_check_interval = mmp_s->mmp_check_interval;
1216
1217 wait_time = mmp_check_interval * 2 + 1;
1218
1219 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1220 retval = 0;
1221 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1222 retval = EXT2_ET_MMP_FSCK_ON;
1223 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1224 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1225
1226 if (retval)
1227 goto check_error;
1228
1229 /* Print warning if e2fsck will wait for more than 20 secs. */
1230 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1231 log_out(ctx, _("MMP interval is %u seconds and total wait "
1232 "time is %u seconds. Please wait...\n"),
1233 mmp_check_interval, wait_time * 2);
1234 }
1235
1236 return 0;
1237
1238 check_error:
1239
1240 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1241 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1242 fs->super->s_mmp_block = 0;
1243 ext2fs_mark_super_dirty(fs);
1244 retval = 0;
1245 }
1246 } else if (retval == EXT2_ET_MMP_FAILED) {
1247 com_err(ctx->program_name, retval, "%s",
1248 _("while checking MMP block"));
1249 dump_mmp_msg(fs->mmp_buf, NULL);
1250 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1251 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1252 com_err(ctx->program_name, retval, "%s",
1253 _("while checking MMP block"));
1254 dump_mmp_msg(fs->mmp_buf,
1255 _("If you are sure the filesystem is not "
1256 "in use on any node, run:\n"
1257 "'tune2fs -f -E clear_mmp {device}'\n"));
1258 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1259 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1260 ext2fs_mmp_clear(fs);
1261 retval = 0;
1262 }
1263 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1264 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1265 ext2fs_mmp_clear(fs);
1266 retval = 0;
1267 }
1268 } else
1269 com_err(ctx->program_name, retval, "%s",
1270 _("while reading MMP block"));
1271 return retval;
1272 }
1273
1274 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1275 {
1276 errcode_t retval = ENOMEM;
1277 char *tdb_dir = NULL, *tdb_file = NULL;
1278 char *dev_name, *tmp_name;
1279 int free_tdb_dir = 0;
1280
1281 /* (re)open a specific undo file */
1282 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1283 retval = set_undo_io_backing_manager(*io_ptr);
1284 if (retval)
1285 goto err;
1286 *io_ptr = undo_io_manager;
1287 retval = set_undo_io_backup_file(ctx->undo_file);
1288 if (retval)
1289 goto err;
1290 printf(_("Overwriting existing filesystem; this can be undone "
1291 "using the command:\n"
1292 " e2undo %s %s\n\n"),
1293 ctx->undo_file, ctx->filesystem_name);
1294 return retval;
1295 }
1296
1297 /*
1298 * Configuration via a conf file would be
1299 * nice
1300 */
1301 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1302 if (!tdb_dir) {
1303 profile_get_string(ctx->profile, "defaults",
1304 "undo_dir", 0, "/var/lib/e2fsprogs",
1305 &tdb_dir);
1306 free_tdb_dir = 1;
1307 }
1308
1309 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1310 access(tdb_dir, W_OK)) {
1311 if (free_tdb_dir)
1312 free(tdb_dir);
1313 return 0;
1314 }
1315
1316 tmp_name = strdup(ctx->filesystem_name);
1317 if (!tmp_name)
1318 goto errout;
1319 dev_name = basename(tmp_name);
1320 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1321 if (!tdb_file) {
1322 free(tmp_name);
1323 goto errout;
1324 }
1325 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1326 free(tmp_name);
1327
1328 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1329 retval = errno;
1330 com_err(ctx->program_name, retval,
1331 _("while trying to delete %s"), tdb_file);
1332 goto errout;
1333 }
1334
1335 retval = set_undo_io_backing_manager(*io_ptr);
1336 if (retval)
1337 goto errout;
1338 *io_ptr = undo_io_manager;
1339 retval = set_undo_io_backup_file(tdb_file);
1340 if (retval)
1341 goto errout;
1342 printf(_("Overwriting existing filesystem; this can be undone "
1343 "using the command:\n"
1344 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1345
1346 if (free_tdb_dir)
1347 free(tdb_dir);
1348 free(tdb_file);
1349 return 0;
1350
1351 errout:
1352 if (free_tdb_dir)
1353 free(tdb_dir);
1354 free(tdb_file);
1355 err:
1356 com_err(ctx->program_name, retval, "%s",
1357 _("while trying to setup undo file\n"));
1358 return retval;
1359 }
1360
1361 int main (int argc, char *argv[])
1362 {
1363 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1364 int exit_value = FSCK_OK;
1365 ext2_filsys fs = 0;
1366 io_manager io_ptr;
1367 struct ext2_super_block *sb;
1368 const char *lib_ver_date;
1369 int my_ver, lib_ver;
1370 e2fsck_t ctx;
1371 blk64_t orig_superblock = ~(blk64_t)0;
1372 struct problem_context pctx;
1373 int flags, run_result, was_changed;
1374 int journal_size;
1375 int sysval, sys_page_size = 4096;
1376 int old_bitmaps;
1377 __u32 features[3];
1378 char *cp;
1379 enum quota_type qtype;
1380
1381 clear_problem_context(&pctx);
1382 sigcatcher_setup();
1383 #ifdef MTRACE
1384 mtrace();
1385 #endif
1386 #ifdef MCHECK
1387 mcheck(0);
1388 #endif
1389 #ifdef ENABLE_NLS
1390 setlocale(LC_MESSAGES, "");
1391 setlocale(LC_CTYPE, "");
1392 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1393 textdomain(NLS_CAT_NAME);
1394 set_com_err_gettext(gettext);
1395 #endif
1396 my_ver = ext2fs_parse_version_string(my_ver_string);
1397 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1398 if (my_ver > lib_ver) {
1399 fprintf( stderr, "%s",
1400 _("Error: ext2fs library version out of date!\n"));
1401 show_version_only++;
1402 }
1403
1404 retval = PRS(argc, argv, &ctx);
1405 if (retval) {
1406 com_err("e2fsck", retval, "%s",
1407 _("while trying to initialize program"));
1408 exit(FSCK_ERROR);
1409 }
1410 reserve_stdio_fds();
1411
1412 set_up_logging(ctx);
1413 if (ctx->logf) {
1414 int i;
1415 fputs("E2fsck run: ", ctx->logf);
1416 for (i = 0; i < argc; i++) {
1417 if (i)
1418 fputc(' ', ctx->logf);
1419 fputs(argv[i], ctx->logf);
1420 }
1421 fputc('\n', ctx->logf);
1422 }
1423
1424 init_resource_track(&ctx->global_rtrack, NULL);
1425 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1426 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1427 my_ver_date);
1428
1429 if (show_version_only) {
1430 log_err(ctx, _("\tUsing %s, %s\n"),
1431 error_message(EXT2_ET_BASE), lib_ver_date);
1432 exit(FSCK_OK);
1433 }
1434
1435 check_mount(ctx);
1436
1437 if (!(ctx->options & E2F_OPT_PREEN) &&
1438 !(ctx->options & E2F_OPT_NO) &&
1439 !(ctx->options & E2F_OPT_YES)) {
1440 if (!ctx->interactive)
1441 fatal_error(ctx,
1442 _("need terminal for interactive repairs"));
1443 }
1444 ctx->superblock = ctx->use_superblock;
1445
1446 flags = EXT2_FLAG_SKIP_MMP;
1447 restart:
1448 #ifdef CONFIG_TESTIO_DEBUG
1449 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1450 io_ptr = test_io_manager;
1451 test_io_backing_manager = unix_io_manager;
1452 } else
1453 #endif
1454 io_ptr = unix_io_manager;
1455 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1456 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1457 &old_bitmaps);
1458 if (!old_bitmaps)
1459 flags |= EXT2_FLAG_64BITS;
1460 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1461 flags |= EXT2_FLAG_RW;
1462 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1463 ctx->mount_flags & EXT2_MF_READONLY))
1464 flags |= EXT2_FLAG_EXCLUSIVE;
1465 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1466 (ctx->options & E2F_OPT_FORCE))
1467 flags &= ~EXT2_FLAG_EXCLUSIVE;
1468 }
1469
1470 if (ctx->undo_file) {
1471 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1472 if (retval)
1473 exit(FSCK_ERROR);
1474 }
1475
1476 ctx->openfs_flags = flags;
1477 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1478
1479 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1480 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1481 ((retval == EXT2_ET_BAD_MAGIC) ||
1482 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1483 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1484 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1485 if (retval) {
1486 pctx.errcode = retval;
1487 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1488 }
1489 if (retval2) {
1490 pctx.errcode = retval2;
1491 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1492 }
1493 pctx.errcode = 0;
1494 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1495 retval = retval2;
1496 goto failure;
1497 }
1498 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1499 ext2fs_free(fs);
1500 fs = NULL;
1501 }
1502 if (!fs || (fs->group_desc_count > 1)) {
1503 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1504 ctx->program_name,
1505 retval ? _("Superblock invalid,") :
1506 _("Group descriptors look bad..."));
1507 orig_superblock = ctx->superblock;
1508 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1509 if (fs)
1510 ext2fs_close_free(&fs);
1511 orig_retval = retval;
1512 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1513 if ((orig_retval == 0) && retval != 0) {
1514 if (fs)
1515 ext2fs_close_free(&fs);
1516 log_out(ctx, _("%s: %s while using the "
1517 "backup blocks"),
1518 ctx->program_name,
1519 error_message(retval));
1520 log_out(ctx, _("%s: going back to original "
1521 "superblock\n"),
1522 ctx->program_name);
1523 ctx->superblock = orig_superblock;
1524 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1525 }
1526 }
1527 }
1528 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1529 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1530 fs && fs->super) {
1531 sb = fs->super;
1532 features[0] = (sb->s_feature_compat &
1533 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1534 features[1] = (sb->s_feature_incompat &
1535 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1536 features[2] = (sb->s_feature_ro_compat &
1537 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1538 if (features[0] || features[1] || features[2])
1539 goto print_unsupp_features;
1540 }
1541 failure:
1542 if (retval) {
1543 if (orig_retval)
1544 retval = orig_retval;
1545 com_err(ctx->program_name, retval, _("while trying to open %s"),
1546 ctx->filesystem_name);
1547 if (retval == EXT2_ET_REV_TOO_HIGH) {
1548 log_out(ctx, "%s",
1549 _("The filesystem revision is apparently "
1550 "too high for this version of e2fsck.\n"
1551 "(Or the filesystem superblock "
1552 "is corrupt)\n\n"));
1553 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1554 } else if (retval == EXT2_ET_SHORT_READ)
1555 log_out(ctx, "%s",
1556 _("Could this be a zero-length partition?\n"));
1557 else if ((retval == EPERM) || (retval == EACCES))
1558 log_out(ctx, _("You must have %s access to the "
1559 "filesystem or be root\n"),
1560 (ctx->options & E2F_OPT_READONLY) ?
1561 "r/o" : "r/w");
1562 else if (retval == ENXIO)
1563 log_out(ctx, "%s",
1564 _("Possibly non-existent or swap device?\n"));
1565 else if (retval == EBUSY)
1566 log_out(ctx, "%s", _("Filesystem mounted or opened "
1567 "exclusively by another program?\n"));
1568 else if (retval == ENOENT)
1569 log_out(ctx, "%s",
1570 _("Possibly non-existent device?\n"));
1571 #ifdef EROFS
1572 else if (retval == EROFS)
1573 log_out(ctx, "%s", _("Disk write-protected; use the "
1574 "-n option to do a read-only\n"
1575 "check of the device.\n"));
1576 #endif
1577 else {
1578 /*
1579 * Let's try once more will less consistency checking
1580 * so that we are able to recover from more errors
1581 * (e.g. some tool messing up some value in the sb).
1582 */
1583 if (!(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) {
1584 if (fs)
1585 ext2fs_close_free(&fs);
1586 log_out(ctx, _("%s: Trying to load superblock "
1587 "despite errors...\n"),
1588 ctx->program_name);
1589 flags |= EXT2_FLAG_IGNORE_SB_ERRORS;
1590 /*
1591 * If we tried backup sb, revert to the
1592 * original one now.
1593 */
1594 if (orig_superblock != ~(blk64_t)0)
1595 ctx->superblock = orig_superblock;
1596 goto restart;
1597 }
1598 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1599 if (retval == EXT2_ET_BAD_MAGIC)
1600 check_plausibility(ctx->filesystem_name,
1601 CHECK_FS_EXIST, NULL);
1602 }
1603 fatal_error(ctx, 0);
1604 }
1605 /*
1606 * We only update the master superblock because (a) paranoia;
1607 * we don't want to corrupt the backup superblocks, and (b) we
1608 * don't need to update the mount count and last checked
1609 * fields in the backup superblock (the kernel doesn't update
1610 * the backup superblocks anyway). With newer versions of the
1611 * library this flag is set by ext2fs_open2(), but we set this
1612 * here just to be sure. (No, we don't support e2fsck running
1613 * with some other libext2fs than the one that it was shipped
1614 * with, but just in case....)
1615 */
1616 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1617
1618 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1619 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1620 int need_restart = 0;
1621
1622 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1623 blocksize,
1624 &ctx->num_blocks);
1625 /*
1626 * The floppy driver refuses to allow anyone else to
1627 * open the device if has been opened with O_EXCL;
1628 * this is unlike other block device drivers in Linux.
1629 * To handle this, we close the filesystem and then
1630 * reopen the filesystem after we get the device size.
1631 */
1632 if (pctx.errcode == EBUSY) {
1633 ext2fs_close_free(&fs);
1634 need_restart++;
1635 pctx.errcode =
1636 ext2fs_get_device_size2(ctx->filesystem_name,
1637 blocksize,
1638 &ctx->num_blocks);
1639 }
1640 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1641 ctx->num_blocks = 0;
1642 else if (pctx.errcode) {
1643 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1644 ctx->flags |= E2F_FLAG_ABORT;
1645 fatal_error(ctx, 0);
1646 }
1647 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1648 if (need_restart)
1649 goto restart;
1650 }
1651
1652 ctx->fs = fs;
1653 fs->now = ctx->now;
1654 sb = fs->super;
1655
1656 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1657 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1658 _("while trying to open %s"),
1659 ctx->filesystem_name);
1660 get_newer:
1661 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1662 }
1663
1664 /*
1665 * Set the device name, which is used whenever we print error
1666 * or informational messages to the user.
1667 */
1668 if (ctx->device_name == 0 &&
1669 (sb->s_volume_name[0] != 0)) {
1670 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1671 sizeof(sb->s_volume_name));
1672 }
1673 if (ctx->device_name == 0)
1674 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1675 for (cp = ctx->device_name; *cp; cp++)
1676 if (isspace(*cp) || *cp == ':')
1677 *cp = '_';
1678
1679 ehandler_init(fs->io);
1680
1681 if (ext2fs_has_feature_mmp(fs->super) &&
1682 (flags & EXT2_FLAG_SKIP_MMP)) {
1683 if (e2fsck_check_mmp(fs, ctx))
1684 fatal_error(ctx, 0);
1685
1686 /*
1687 * Restart in order to reopen fs but this time start mmp.
1688 */
1689 ext2fs_close_free(&ctx->fs);
1690 flags &= ~EXT2_FLAG_SKIP_MMP;
1691 goto restart;
1692 }
1693
1694 if (ctx->logf)
1695 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1696 e2p_uuid2str(sb->s_uuid));
1697
1698 /*
1699 * Make sure the ext3 superblock fields are consistent.
1700 */
1701 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1702 retval = e2fsck_check_ext3_journal(ctx);
1703 if (retval) {
1704 com_err(ctx->program_name, retval,
1705 _("while checking journal for %s"),
1706 ctx->device_name);
1707 fatal_error(ctx,
1708 _("Cannot proceed with file system check"));
1709 }
1710 }
1711
1712 /*
1713 * Check to see if we need to do ext3-style recovery. If so,
1714 * do it, and then restart the fsck.
1715 */
1716 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1717 if (ctx->options & E2F_OPT_READONLY) {
1718 log_out(ctx, "%s",
1719 _("Warning: skipping journal recovery because "
1720 "doing a read-only filesystem check.\n"));
1721 io_channel_flush(ctx->fs->io);
1722 } else {
1723 if (ctx->flags & E2F_FLAG_RESTARTED) {
1724 /*
1725 * Whoops, we attempted to run the
1726 * journal twice. This should never
1727 * happen, unless the hardware or
1728 * device driver is being bogus.
1729 */
1730 com_err(ctx->program_name, 0,
1731 _("unable to set superblock flags "
1732 "on %s\n"), ctx->device_name);
1733 fatal_error(ctx, 0);
1734 }
1735 retval = e2fsck_run_ext3_journal(ctx);
1736 if (retval == EFSBADCRC) {
1737 log_out(ctx, _("Journal checksum error "
1738 "found in %s\n"),
1739 ctx->device_name);
1740 } else if (retval == EFSCORRUPTED) {
1741 log_out(ctx, _("Journal corrupted in %s\n"),
1742 ctx->device_name);
1743 } else if (retval) {
1744 com_err(ctx->program_name, retval,
1745 _("while recovering journal of %s"),
1746 ctx->device_name);
1747 }
1748 ext2fs_close_free(&ctx->fs);
1749 ctx->flags |= E2F_FLAG_RESTARTED;
1750 goto restart;
1751 }
1752 }
1753
1754 /*
1755 * Check for compatibility with the feature sets. We need to
1756 * be more stringent than ext2fs_open().
1757 */
1758 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1759 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1760 features[2] = (sb->s_feature_ro_compat &
1761 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1762 print_unsupp_features:
1763 if (features[0] || features[1] || features[2]) {
1764 int i, j;
1765 __u32 *mask = features, m;
1766
1767 log_err(ctx, _("%s has unsupported feature(s):"),
1768 ctx->filesystem_name);
1769
1770 for (i=0; i <3; i++,mask++) {
1771 for (j=0,m=1; j < 32; j++, m<<=1) {
1772 if (*mask & m)
1773 log_err(ctx, " %s",
1774 e2p_feature2string(i, m));
1775 }
1776 }
1777 log_err(ctx, "\n");
1778 goto get_newer;
1779 }
1780
1781 /*
1782 * If the user specified a specific superblock, presumably the
1783 * master superblock has been trashed. So we mark the
1784 * superblock as dirty, so it can be written out.
1785 */
1786 if (ctx->superblock &&
1787 !(ctx->options & E2F_OPT_READONLY))
1788 ext2fs_mark_super_dirty(fs);
1789
1790 /*
1791 * Calculate the number of filesystem blocks per pagesize. If
1792 * fs->blocksize > page_size, set the number of blocks per
1793 * pagesize to 1 to avoid division by zero errors.
1794 */
1795 #ifdef _SC_PAGESIZE
1796 sysval = sysconf(_SC_PAGESIZE);
1797 if (sysval > 0)
1798 sys_page_size = sysval;
1799 #endif /* _SC_PAGESIZE */
1800 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1801 if (ctx->blocks_per_page == 0)
1802 ctx->blocks_per_page = 1;
1803
1804 if (ctx->superblock)
1805 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1806 ext2fs_mark_valid(fs);
1807 check_super_block(ctx);
1808 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1809 fatal_error(ctx, 0);
1810 check_if_skip(ctx);
1811 check_resize_inode(ctx);
1812 if (bad_blocks_file)
1813 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1814 else if (cflag)
1815 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1816 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1817 fatal_error(ctx, 0);
1818
1819 /*
1820 * Mark the system as valid, 'til proven otherwise
1821 */
1822 ext2fs_mark_valid(fs);
1823
1824 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1825 if (retval) {
1826 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1827 ctx->program_name, error_message(retval));
1828 preenhalt(ctx);
1829 log_out(ctx, "%s", _("This doesn't bode well, "
1830 "but we'll try to go on...\n"));
1831 }
1832
1833 /*
1834 * Save the journal size in megabytes.
1835 * Try and use the journal size from the backup else let e2fsck
1836 * find the default journal size.
1837 */
1838 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1839 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1840 (sb->s_jnl_blocks[16] >> 20);
1841 else
1842 journal_size = -1;
1843
1844 if (ext2fs_has_feature_quota(sb)) {
1845 /* Quotas were enabled. Do quota accounting during fsck. */
1846 clear_problem_context(&pctx);
1847 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1848 if (pctx.errcode) {
1849 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1850 fatal_error(ctx, 0);
1851 }
1852 }
1853
1854 run_result = e2fsck_run(ctx);
1855 e2fsck_clear_progbar(ctx);
1856
1857 if (!ctx->invalid_bitmaps &&
1858 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1859 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1860 if (journal_size < 1024)
1861 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1862 if (journal_size < 0) {
1863 ext2fs_clear_feature_journal(fs->super);
1864 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1865 log_out(ctx, "%s: Couldn't determine "
1866 "journal size\n", ctx->program_name);
1867 goto no_journal;
1868 }
1869 log_out(ctx, _("Creating journal (%d blocks): "),
1870 journal_size);
1871 fflush(stdout);
1872 retval = ext2fs_add_journal_inode(fs,
1873 journal_size, 0);
1874 if (retval) {
1875 log_out(ctx, "%s: while trying to create "
1876 "journal\n", error_message(retval));
1877 goto no_journal;
1878 }
1879 log_out(ctx, "%s", _(" Done.\n"));
1880 log_out(ctx, "%s",
1881 _("\n*** journal has been regenerated ***\n"));
1882 }
1883 }
1884 no_journal:
1885
1886 if (run_result & E2F_FLAG_ABORT) {
1887 fatal_error(ctx, _("aborted"));
1888 } else if (run_result & E2F_FLAG_CANCEL) {
1889 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1890 ctx->device_name : ctx->filesystem_name);
1891 exit_value |= FSCK_CANCELED;
1892 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1893 int needs_writeout;
1894
1895 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1896 if (*quota_sb_inump(sb, qtype) == 0)
1897 continue;
1898 needs_writeout = 0;
1899 pctx.num = qtype;
1900 retval = quota_compare_and_update(ctx->qctx, qtype,
1901 &needs_writeout);
1902 if ((retval || needs_writeout) &&
1903 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1904 pctx.errcode = quota_write_inode(ctx->qctx,
1905 1 << qtype);
1906 if (pctx.errcode)
1907 (void) fix_problem(ctx,
1908 PR_6_WRITE_QUOTAS, &pctx);
1909 }
1910 }
1911 quota_release_context(&ctx->qctx);
1912 }
1913
1914 if (run_result == E2F_FLAG_RESTART) {
1915 log_out(ctx, "%s",
1916 _("Restarting e2fsck from the beginning...\n"));
1917 retval = e2fsck_reset_context(ctx);
1918 if (retval) {
1919 com_err(ctx->program_name, retval, "%s",
1920 _("while resetting context"));
1921 fatal_error(ctx, 0);
1922 }
1923 ext2fs_close_free(&ctx->fs);
1924 goto restart;
1925 }
1926
1927 #ifdef MTRACE
1928 mtrace_print("Cleanup");
1929 #endif
1930 was_changed = ext2fs_test_changed(fs);
1931 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1932 !(ctx->options & E2F_OPT_READONLY)) {
1933 if (ext2fs_test_valid(fs)) {
1934 if (!(sb->s_state & EXT2_VALID_FS))
1935 exit_value |= FSCK_NONDESTRUCT;
1936 sb->s_state = EXT2_VALID_FS;
1937 if (check_backup_super_block(ctx))
1938 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1939 } else
1940 sb->s_state &= ~EXT2_VALID_FS;
1941 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1942 sb->s_lastcheck = ctx->now;
1943 sb->s_mnt_count = 0;
1944 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1945 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1946 if (pctx.errcode)
1947 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1948 ext2fs_mark_super_dirty(fs);
1949 }
1950
1951 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
1952 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) &&
1953 (ctx->options & E2F_OPT_NO))
1954 /* Don't try to write or flush I/O, we just wanted to know whether or
1955 * not there were enough free blocks to undo deduplication.
1956 */
1957 goto skip_write;
1958
1959 if (!(ctx->options & E2F_OPT_READONLY)) {
1960 e2fsck_write_bitmaps(ctx);
1961 if (fs->flags & EXT2_FLAG_DIRTY) {
1962 pctx.errcode = ext2fs_flush(ctx->fs);
1963 if (pctx.errcode)
1964 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1965 }
1966 pctx.errcode = io_channel_flush(ctx->fs->io);
1967 if (pctx.errcode)
1968 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1969 }
1970
1971 if (was_changed) {
1972 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
1973
1974 if (fs_fixed)
1975 exit_value |= FSCK_NONDESTRUCT;
1976 if (!(ctx->options & E2F_OPT_PREEN)) {
1977 #if 0 /* Do this later; it breaks too many tests' golden outputs */
1978 log_out(ctx, fs_fixed ?
1979 _("\n%s: ***** FILE SYSTEM ERRORS "
1980 "CORRECTED *****\n") :
1981 _("%s: File system was modified.\n"),
1982 ctx->device_name);
1983 #else
1984 log_out(ctx,
1985 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1986 ctx->device_name);
1987 #endif
1988 }
1989 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1990 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
1991 ctx->device_name);
1992 exit_value |= FSCK_REBOOT;
1993 }
1994 }
1995
1996 skip_write:
1997 if (!ext2fs_test_valid(fs) ||
1998 ((exit_value & FSCK_CANCELED) &&
1999 (sb->s_state & EXT2_ERROR_FS))) {
2000 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
2001 "errors **********\n\n"), ctx->device_name);
2002 exit_value |= FSCK_UNCORRECTED;
2003 exit_value &= ~FSCK_NONDESTRUCT;
2004 }
2005 if (exit_value & FSCK_CANCELED) {
2006 int allow_cancellation;
2007
2008 profile_get_boolean(ctx->profile, "options",
2009 "allow_cancellation", 0, 0,
2010 &allow_cancellation);
2011 exit_value &= ~FSCK_NONDESTRUCT;
2012 if (allow_cancellation && ext2fs_test_valid(fs) &&
2013 (sb->s_state & EXT2_VALID_FS) &&
2014 !(sb->s_state & EXT2_ERROR_FS))
2015 exit_value = 0;
2016 } else
2017 show_stats(ctx);
2018
2019 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
2020
2021 ext2fs_close_free(&ctx->fs);
2022 free(ctx->journal_name);
2023
2024 if (ctx->logf)
2025 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
2026 e2fsck_free_context(ctx);
2027 remove_error_table(&et_ext2_error_table);
2028 remove_error_table(&et_prof_error_table);
2029 return exit_value;
2030 }
Unnamed repository; edit this file 'description' to name the repository.