]> 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
Merge branch 'maint' into next
[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 "uuid/uuid.h"
54 #include "support/plausible.h"
55 #include "e2fsck.h"
56 #include "problem.h"
57 #include "jfs_user.h"
58 #include "../version.h"
59
60 /* Command line options */
61 static int cflag; /* check disk */
62 static int show_version_only;
63 static int verbose;
64
65 static int replace_bad_blocks;
66 static int keep_bad_blocks;
67 static char *bad_blocks_file;
68
69 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
70
71 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
72 int journal_enable_debug = -1;
73 #endif
74
75 static void usage(e2fsck_t ctx)
76 {
77 fprintf(stderr,
78 _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n"
79 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
80 "\t\t[-E extended-options] [-z undo_file] device\n"),
81 ctx->program_name);
82
83 fprintf(stderr, "%s", _("\nEmergency help:\n"
84 " -p Automatic repair (no questions)\n"
85 " -n Make no changes to the filesystem\n"
86 " -y Assume \"yes\" to all questions\n"
87 " -c Check for bad blocks and add them to the badblock list\n"
88 " -f Force checking even if filesystem is marked clean\n"));
89 fprintf(stderr, "%s", _(""
90 " -v Be verbose\n"
91 " -b superblock Use alternative superblock\n"
92 " -B blocksize Force blocksize when looking for superblock\n"
93 " -j external_journal Set location of the external journal\n"
94 " -l bad_blocks_file Add to badblocks list\n"
95 " -L bad_blocks_file Set badblocks list\n"
96 " -z undo_file Create an undo file\n"
97 ));
98
99 exit(FSCK_USAGE);
100 }
101
102 static void show_stats(e2fsck_t ctx)
103 {
104 ext2_filsys fs = ctx->fs;
105 ext2_ino_t inodes, inodes_used;
106 blk64_t blocks, blocks_used;
107 unsigned int dir_links;
108 unsigned int num_files, num_links;
109 __u32 *mask, m;
110 int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0;
111 int i, j, printed = 0;
112
113 dir_links = 2 * ctx->fs_directory_count - 1;
114 num_files = ctx->fs_total_count - dir_links;
115 num_links = ctx->fs_links_count - dir_links;
116 inodes = fs->super->s_inodes_count;
117 inodes_used = (fs->super->s_inodes_count -
118 fs->super->s_free_inodes_count);
119 blocks = ext2fs_blocks_count(fs->super);
120 blocks_used = (ext2fs_blocks_count(fs->super) -
121 ext2fs_free_blocks_count(fs->super));
122
123 if (inodes_used > 0) {
124 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
125 frag_percent_file = (frag_percent_file + 5) / 10;
126
127 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
128 frag_percent_dir = (frag_percent_dir + 5) / 10;
129
130 frag_percent_total = ((10000 * (ctx->fs_fragmented +
131 ctx->fs_fragmented_dir))
132 / inodes_used);
133 frag_percent_total = (frag_percent_total + 5) / 10;
134 }
135
136 if (!verbose) {
137 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
138 "%llu/%llu blocks\n"),
139 ctx->device_name, inodes_used, inodes,
140 frag_percent_total / 10, frag_percent_total % 10,
141 blocks_used, blocks);
142 return;
143 }
144 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
145 &i);
146 if (verbose && i) {
147 log_out(ctx, "\nFilesystem features:");
148 mask = &ctx->fs->super->s_feature_compat;
149 for (i = 0; i < 3; i++, mask++) {
150 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
151 if (*mask & m) {
152 log_out(ctx, " %s",
153 e2p_feature2string(i, m));
154 printed++;
155 }
156 }
157 }
158 if (printed == 0)
159 log_out(ctx, " (none)");
160 log_out(ctx, "\n");
161 }
162
163 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
164 "\n%12u inodes used (%2.2f%%, out of %u)\n",
165 inodes_used), inodes_used,
166 100.0 * inodes_used / inodes, inodes);
167 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
168 "%12u non-contiguous files (%0d.%d%%)\n",
169 ctx->fs_fragmented),
170 ctx->fs_fragmented, frag_percent_file / 10,
171 frag_percent_file % 10);
172 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
173 "%12u non-contiguous directories (%0d.%d%%)\n",
174 ctx->fs_fragmented_dir),
175 ctx->fs_fragmented_dir, frag_percent_dir / 10,
176 frag_percent_dir % 10);
177 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
178 "%u/%u/%u\n"),
179 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
180
181 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
182 if (ctx->extent_depth_count[j])
183 break;
184 if (++j) {
185 log_out(ctx, "%s", _(" Extent depth histogram: "));
186 for (i=0; i < j; i++) {
187 if (i)
188 fputc('/', stdout);
189 log_out(ctx, "%u", ctx->extent_depth_count[i]);
190 }
191 log_out(ctx, "\n");
192 }
193
194 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
195 "%12llu blocks used (%2.2f%%, out of %llu)\n",
196 blocks_used),
197 blocks_used, 100.0 * blocks_used / blocks, blocks);
198 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
199 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
200 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
201 ctx->large_files), ctx->large_files);
202 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
203 ctx->fs_regular_count), ctx->fs_regular_count);
204 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
205 ctx->fs_directory_count), ctx->fs_directory_count);
206 log_out(ctx, P_("%12u character device file\n",
207 "%12u character device files\n", ctx->fs_chardev_count),
208 ctx->fs_chardev_count);
209 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
210 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
211 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
212 ctx->fs_fifo_count);
213 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
214 ctx->fs_links_count - dir_links);
215 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
216 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
217 log_out(ctx, P_(" (%u fast symbolic link)\n",
218 " (%u fast symbolic links)\n",
219 ctx->fs_fast_symlinks_count),
220 ctx->fs_fast_symlinks_count);
221 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
222 ctx->fs_sockets_count),
223 ctx->fs_sockets_count);
224 log_out(ctx, "------------\n");
225 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
226 num_files);
227 }
228
229 static void check_mount(e2fsck_t ctx)
230 {
231 errcode_t retval;
232 int cont;
233
234 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
235 &ctx->mount_flags);
236 if (retval) {
237 com_err("ext2fs_check_if_mount", retval,
238 _("while determining whether %s is mounted."),
239 ctx->filesystem_name);
240 return;
241 }
242
243 /*
244 * If the filesystem isn't mounted, or it's the root
245 * filesystem and it's mounted read-only, and we're not doing
246 * a read/write check, then everything's fine.
247 */
248 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
249 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
250 (ctx->mount_flags & EXT2_MF_READONLY) &&
251 !(ctx->options & E2F_OPT_WRITECHECK)))
252 return;
253
254 if (((ctx->options & E2F_OPT_READONLY) ||
255 ((ctx->options & E2F_OPT_FORCE) &&
256 (ctx->mount_flags & EXT2_MF_READONLY))) &&
257 !(ctx->options & E2F_OPT_WRITECHECK)) {
258 if (ctx->mount_flags & EXT2_MF_MOUNTED)
259 log_out(ctx, _("Warning! %s is mounted.\n"),
260 ctx->filesystem_name);
261 else
262 log_out(ctx, _("Warning! %s is in use.\n"),
263 ctx->filesystem_name);
264 return;
265 }
266
267 if (ctx->mount_flags & EXT2_MF_MOUNTED)
268 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
269 else
270 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
271 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
272 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
273 puts("\007\007\007\007");
274 log_out(ctx, "%s", _("\n\nWARNING!!! "
275 "The filesystem is mounted. "
276 "If you continue you ***WILL***\n"
277 "cause ***SEVERE*** filesystem damage.\n\n"));
278 puts("\007\007\007");
279 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
280 if (!cont) {
281 printf("%s", _("check aborted.\n"));
282 exit (0);
283 }
284 return;
285 }
286
287 static int is_on_batt(void)
288 {
289 FILE *f;
290 DIR *d;
291 char tmp[80], tmp2[80], fname[NAME_MAX+30];
292 unsigned int acflag;
293 struct dirent* de;
294
295 f = fopen("/sys/class/power_supply/AC/online", "r");
296 if (f) {
297 if (fscanf(f, "%u\n", &acflag) == 1) {
298 fclose(f);
299 return (!acflag);
300 }
301 fclose(f);
302 }
303 f = fopen("/proc/apm", "r");
304 if (f) {
305 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
306 acflag = 1;
307 fclose(f);
308 return (acflag != 1);
309 }
310 d = opendir("/proc/acpi/ac_adapter");
311 if (d) {
312 while ((de=readdir(d)) != NULL) {
313 if (!strncmp(".", de->d_name, 1))
314 continue;
315 snprintf(fname, sizeof(fname),
316 "/proc/acpi/ac_adapter/%s/state",
317 de->d_name);
318 f = fopen(fname, "r");
319 if (!f)
320 continue;
321 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
322 tmp[0] = 0;
323 fclose(f);
324 if (strncmp(tmp, "off-line", 8) == 0) {
325 closedir(d);
326 return 1;
327 }
328 }
329 closedir(d);
330 }
331 return 0;
332 }
333
334 /*
335 * This routine checks to see if a filesystem can be skipped; if so,
336 * it will exit with E2FSCK_OK. Under some conditions it will print a
337 * message explaining why a check is being forced.
338 */
339 static void check_if_skip(e2fsck_t ctx)
340 {
341 ext2_filsys fs = ctx->fs;
342 struct problem_context pctx;
343 const char *reason = NULL;
344 unsigned int reason_arg = 0;
345 long next_check;
346 int batt = is_on_batt();
347 int defer_check_on_battery;
348 int broken_system_clock;
349 time_t lastcheck;
350
351 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
352 return;
353
354 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
355 0, 0, &broken_system_clock);
356 if (ctx->flags & E2F_FLAG_TIME_INSANE)
357 broken_system_clock = 1;
358 profile_get_boolean(ctx->profile, "options",
359 "defer_check_on_battery", 0, 1,
360 &defer_check_on_battery);
361 if (!defer_check_on_battery)
362 batt = 0;
363
364 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
365 return;
366
367 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
368 goto skip;
369
370 lastcheck = fs->super->s_lastcheck;
371 if (lastcheck > ctx->now)
372 lastcheck -= ctx->time_fudge;
373 if ((fs->super->s_state & EXT2_ERROR_FS) ||
374 !ext2fs_test_valid(fs))
375 reason = _(" contains a file system with errors");
376 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
377 reason = _(" was not cleanly unmounted");
378 else if (check_backup_super_block(ctx))
379 reason = _(" primary superblock features different from backup");
380 else if ((fs->super->s_max_mnt_count > 0) &&
381 (fs->super->s_mnt_count >=
382 (unsigned) fs->super->s_max_mnt_count)) {
383 reason = _(" has been mounted %u times without being checked");
384 reason_arg = fs->super->s_mnt_count;
385 if (batt && (fs->super->s_mnt_count <
386 (unsigned) fs->super->s_max_mnt_count*2))
387 reason = 0;
388 } else if (!broken_system_clock && fs->super->s_checkinterval &&
389 (ctx->now < lastcheck)) {
390 reason = _(" has filesystem last checked time in the future");
391 if (batt)
392 reason = 0;
393 } else if (!broken_system_clock && fs->super->s_checkinterval &&
394 ((ctx->now - lastcheck) >=
395 ((time_t) fs->super->s_checkinterval))) {
396 reason = _(" has gone %u days without being checked");
397 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
398 if (batt && ((ctx->now - fs->super->s_lastcheck) <
399 fs->super->s_checkinterval*2))
400 reason = 0;
401 } else if (broken_system_clock && fs->super->s_checkinterval) {
402 log_out(ctx, "%s: ", ctx->device_name);
403 log_out(ctx, "%s",
404 _("ignoring check interval, broken_system_clock set\n"));
405 }
406
407 if (reason) {
408 log_out(ctx, "%s", ctx->device_name);
409 log_out(ctx, reason, reason_arg);
410 log_out(ctx, "%s", _(", check forced.\n"));
411 return;
412 }
413
414 /*
415 * Update the global counts from the block group counts. This
416 * is needed since modern kernels don't update the global
417 * counts so as to avoid locking the entire file system. So
418 * if the filesystem is not unmounted cleanly, the global
419 * counts may not be accurate. Update them here if we can,
420 * for the benefit of users who might examine the file system
421 * using dumpe2fs. (This is for cosmetic reasons only.)
422 */
423 clear_problem_context(&pctx);
424 pctx.ino = fs->super->s_free_inodes_count;
425 pctx.ino2 = ctx->free_inodes;
426 if ((pctx.ino != pctx.ino2) &&
427 !(ctx->options & E2F_OPT_READONLY) &&
428 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
429 fs->super->s_free_inodes_count = ctx->free_inodes;
430 ext2fs_mark_super_dirty(fs);
431 }
432 clear_problem_context(&pctx);
433 pctx.blk = ext2fs_free_blocks_count(fs->super);
434 pctx.blk2 = ctx->free_blocks;
435 if ((pctx.blk != pctx.blk2) &&
436 !(ctx->options & E2F_OPT_READONLY) &&
437 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
438 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
439 ext2fs_mark_super_dirty(fs);
440 }
441
442 /* Print the summary message when we're skipping a full check */
443 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
444 ctx->device_name,
445 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
446 fs->super->s_inodes_count,
447 ext2fs_blocks_count(fs->super) -
448 ext2fs_free_blocks_count(fs->super),
449 ext2fs_blocks_count(fs->super));
450 next_check = 100000;
451 if (fs->super->s_max_mnt_count > 0) {
452 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
453 if (next_check <= 0)
454 next_check = 1;
455 }
456 if (!broken_system_clock && fs->super->s_checkinterval &&
457 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
458 next_check = 1;
459 if (next_check <= 5) {
460 if (next_check == 1) {
461 if (batt)
462 log_out(ctx, "%s",
463 _(" (check deferred; on battery)"));
464 else
465 log_out(ctx, "%s",
466 _(" (check after next mount)"));
467 } else
468 log_out(ctx, _(" (check in %ld mounts)"),
469 next_check);
470 }
471 log_out(ctx, "\n");
472 skip:
473 ext2fs_close_free(&ctx->fs);
474 e2fsck_free_context(ctx);
475 exit(FSCK_OK);
476 }
477
478 /*
479 * For completion notice
480 */
481 struct percent_tbl {
482 int max_pass;
483 int table[32];
484 };
485 static struct percent_tbl e2fsck_tbl = {
486 5, { 0, 70, 90, 92, 95, 100 }
487 };
488 static char bar[128], spaces[128];
489
490 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
491 int max)
492 {
493 float percent;
494
495 if (pass <= 0)
496 return 0.0;
497 if (pass > tbl->max_pass || max == 0)
498 return 100.0;
499 percent = ((float) curr) / ((float) max);
500 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
501 + tbl->table[pass-1]);
502 }
503
504 void e2fsck_clear_progbar(e2fsck_t ctx)
505 {
506 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
507 return;
508
509 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
510 ctx->stop_meta);
511 fflush(stdout);
512 ctx->flags &= ~E2F_FLAG_PROG_BAR;
513 }
514
515 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
516 unsigned int dpynum)
517 {
518 static const char spinner[] = "\\|/-";
519 int i;
520 unsigned int tick;
521 struct timeval tv;
522 int dpywidth;
523 int fixed_percent;
524
525 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
526 return 0;
527
528 /*
529 * Calculate the new progress position. If the
530 * percentage hasn't changed, then we skip out right
531 * away.
532 */
533 fixed_percent = (int) ((10 * percent) + 0.5);
534 if (ctx->progress_last_percent == fixed_percent)
535 return 0;
536 ctx->progress_last_percent = fixed_percent;
537
538 /*
539 * If we've already updated the spinner once within
540 * the last 1/8th of a second, no point doing it
541 * again.
542 */
543 gettimeofday(&tv, NULL);
544 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
545 if ((tick == ctx->progress_last_time) &&
546 (fixed_percent != 0) && (fixed_percent != 1000))
547 return 0;
548 ctx->progress_last_time = tick;
549
550 /*
551 * Advance the spinner, and note that the progress bar
552 * will be on the screen
553 */
554 ctx->progress_pos = (ctx->progress_pos+1) & 3;
555 ctx->flags |= E2F_FLAG_PROG_BAR;
556
557 dpywidth = 66 - strlen(label);
558 dpywidth = 8 * (dpywidth / 8);
559 if (dpynum)
560 dpywidth -= 8;
561
562 i = ((percent * dpywidth) + 50) / 100;
563 printf("%s%s: |%s%s", ctx->start_meta, label,
564 bar + (sizeof(bar) - (i+1)),
565 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
566 if (fixed_percent == 1000)
567 fputc('|', stdout);
568 else
569 fputc(spinner[ctx->progress_pos & 3], stdout);
570 printf(" %4.1f%% ", percent);
571 if (dpynum)
572 printf("%u\r", dpynum);
573 else
574 fputs(" \r", stdout);
575 fputs(ctx->stop_meta, stdout);
576
577 if (fixed_percent == 1000)
578 e2fsck_clear_progbar(ctx);
579 fflush(stdout);
580
581 return 0;
582 }
583
584 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
585 unsigned long cur, unsigned long max)
586 {
587 char buf[1024];
588 float percent;
589
590 if (pass == 0)
591 return 0;
592
593 if (ctx->progress_fd) {
594 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
595 pass, cur, max, ctx->device_name);
596 write_all(ctx->progress_fd, buf, strlen(buf));
597 } else {
598 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
599 e2fsck_simple_progress(ctx, ctx->device_name,
600 percent, 0);
601 }
602 return 0;
603 }
604
605 #define PATH_SET "PATH=/sbin"
606
607 /*
608 * Make sure 0,1,2 file descriptors are open, so that we don't open
609 * the filesystem using the same file descriptor as stdout or stderr.
610 */
611 static void reserve_stdio_fds(void)
612 {
613 int fd = 0;
614
615 while (fd <= 2) {
616 fd = open("/dev/null", O_RDWR);
617 if (fd < 0) {
618 fprintf(stderr, _("ERROR: Couldn't open "
619 "/dev/null (%s)\n"),
620 strerror(errno));
621 return;
622 }
623 }
624 (void) close(fd);
625 }
626
627 #ifdef HAVE_SIGNAL_H
628 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
629 {
630 e2fsck_t ctx = e2fsck_global_ctx;
631
632 if (!ctx)
633 return;
634
635 ctx->progress = e2fsck_update_progress;
636 }
637
638 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
639 {
640 e2fsck_t ctx = e2fsck_global_ctx;
641
642 if (!ctx)
643 return;
644
645 e2fsck_clear_progbar(ctx);
646 ctx->progress = 0;
647 }
648
649 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
650 {
651 e2fsck_t ctx = e2fsck_global_ctx;
652
653 if (!ctx)
654 exit(FSCK_CANCELED);
655
656 ctx->flags |= E2F_FLAG_CANCEL;
657 }
658 #endif
659
660 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
661 {
662 char *buf, *token, *next, *p, *arg;
663 int ea_ver;
664 int extended_usage = 0;
665 unsigned long long reada_kb;
666
667 buf = string_copy(ctx, opts, 0);
668 for (token = buf; token && *token; token = next) {
669 p = strchr(token, ',');
670 next = 0;
671 if (p) {
672 *p = 0;
673 next = p+1;
674 }
675 arg = strchr(token, '=');
676 if (arg) {
677 *arg = 0;
678 arg++;
679 }
680 if (strcmp(token, "ea_ver") == 0) {
681 if (!arg) {
682 extended_usage++;
683 continue;
684 }
685 ea_ver = strtoul(arg, &p, 0);
686 if (*p ||
687 ((ea_ver != 1) && (ea_ver != 2))) {
688 fprintf(stderr, "%s",
689 _("Invalid EA version.\n"));
690 extended_usage++;
691 continue;
692 }
693 ctx->ext_attr_ver = ea_ver;
694 } else if (strcmp(token, "readahead_kb") == 0) {
695 if (!arg) {
696 extended_usage++;
697 continue;
698 }
699 reada_kb = strtoull(arg, &p, 0);
700 if (*p) {
701 fprintf(stderr, "%s",
702 _("Invalid readahead buffer size.\n"));
703 extended_usage++;
704 continue;
705 }
706 ctx->readahead_kb = reada_kb;
707 } else if (strcmp(token, "fragcheck") == 0) {
708 ctx->options |= E2F_OPT_FRAGCHECK;
709 continue;
710 } else if (strcmp(token, "journal_only") == 0) {
711 if (arg) {
712 extended_usage++;
713 continue;
714 }
715 ctx->options |= E2F_OPT_JOURNAL_ONLY;
716 } else if (strcmp(token, "discard") == 0) {
717 ctx->options |= E2F_OPT_DISCARD;
718 continue;
719 } else if (strcmp(token, "nodiscard") == 0) {
720 ctx->options &= ~E2F_OPT_DISCARD;
721 continue;
722 } else if (strcmp(token, "optimize_extents") == 0) {
723 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
724 continue;
725 } else if (strcmp(token, "no_optimize_extents") == 0) {
726 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
727 continue;
728 } else if (strcmp(token, "inode_count_fullmap") == 0) {
729 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
730 continue;
731 } else if (strcmp(token, "no_inode_count_fullmap") == 0) {
732 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
733 continue;
734 } else if (strcmp(token, "log_filename") == 0) {
735 if (!arg)
736 extended_usage++;
737 else
738 ctx->log_fn = string_copy(ctx, arg, 0);
739 continue;
740 } else if (strcmp(token, "problem_log") == 0) {
741 if (!arg)
742 extended_usage++;
743 else
744 ctx->problem_log_fn = string_copy(ctx, arg, 0);
745 continue;
746 } else if (strcmp(token, "bmap2extent") == 0) {
747 ctx->options |= E2F_OPT_CONVERT_BMAP;
748 continue;
749 } else if (strcmp(token, "fixes_only") == 0) {
750 ctx->options |= E2F_OPT_FIXES_ONLY;
751 continue;
752 } else if (strcmp(token, "unshare_blocks") == 0) {
753 ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
754 ctx->options |= E2F_OPT_FORCE;
755 continue;
756 #ifdef CONFIG_DEVELOPER_FEATURES
757 } else if (strcmp(token, "clear_all_uninit_bits") == 0) {
758 ctx->options |= E2F_OPT_CLEAR_UNINIT;
759 continue;
760 #endif
761 } else {
762 fprintf(stderr, _("Unknown extended option: %s\n"),
763 token);
764 extended_usage++;
765 }
766 }
767 free(buf);
768
769 if (extended_usage) {
770 fputs(_("\nExtended options are separated by commas, "
771 "and may take an argument which\n"
772 "is set off by an equals ('=') sign. "
773 "Valid extended options are:\n\n"), stderr);
774 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
775 fputs("\tfragcheck\n", stderr);
776 fputs("\tjournal_only\n", stderr);
777 fputs("\tdiscard\n", stderr);
778 fputs("\tnodiscard\n", stderr);
779 fputs("\toptimize_extents\n", stderr);
780 fputs("\tno_optimize_extents\n", stderr);
781 fputs("\tinode_count_fullmap\n", stderr);
782 fputs("\tno_inode_count_fullmap\n", stderr);
783 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
784 fputs("\tbmap2extent\n", stderr);
785 fputs("\tunshare_blocks\n", stderr);
786 fputs("\tfixes_only\n", stderr);
787 fputc('\n', stderr);
788 exit(1);
789 }
790 }
791
792 static void syntax_err_report(const char *filename, long err, int line_num)
793 {
794 fprintf(stderr,
795 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
796 filename, line_num, error_message(err));
797 exit(FSCK_ERROR);
798 }
799
800 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
801
802 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
803 {
804 int flush = 0;
805 int c, fd;
806 #ifdef MTRACE
807 extern void *mallwatch;
808 #endif
809 e2fsck_t ctx;
810 errcode_t retval;
811 #ifdef HAVE_SIGNAL_H
812 struct sigaction sa;
813 #endif
814 char *extended_opts = 0;
815 char *cp;
816 int res; /* result of sscanf */
817 #ifdef CONFIG_JBD_DEBUG
818 char *jbd_debug;
819 #endif
820 unsigned long long phys_mem_kb;
821
822 retval = e2fsck_allocate_context(&ctx);
823 if (retval)
824 return retval;
825
826 *ret_ctx = ctx;
827 e2fsck_global_ctx = ctx;
828
829 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
830 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
831 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
832 ctx->interactive = 1;
833 } else {
834 ctx->start_meta[0] = '\001';
835 ctx->stop_meta[0] = '\002';
836 }
837 memset(bar, '=', sizeof(bar)-1);
838 memset(spaces, ' ', sizeof(spaces)-1);
839 add_error_table(&et_ext2_error_table);
840 add_error_table(&et_prof_error_table);
841 blkid_get_cache(&ctx->blkid, NULL);
842
843 if (argc && *argv)
844 ctx->program_name = *argv;
845 else
846 ctx->program_name = "e2fsck";
847
848 phys_mem_kb = get_memory_size() / 1024;
849 ctx->readahead_kb = ~0ULL;
850 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
851 switch (c) {
852 case 'C':
853 ctx->progress = e2fsck_update_progress;
854 res = sscanf(optarg, "%d", &ctx->progress_fd);
855 if (res != 1)
856 goto sscanf_err;
857
858 if (ctx->progress_fd < 0) {
859 ctx->progress = 0;
860 ctx->progress_fd = ctx->progress_fd * -1;
861 }
862 if (!ctx->progress_fd)
863 break;
864 /* Validate the file descriptor to avoid disasters */
865 fd = dup(ctx->progress_fd);
866 if (fd < 0) {
867 fprintf(stderr,
868 _("Error validating file descriptor %d: %s\n"),
869 ctx->progress_fd,
870 error_message(errno));
871 fatal_error(ctx,
872 _("Invalid completion information file descriptor"));
873 } else
874 close(fd);
875 break;
876 case 'D':
877 ctx->options |= E2F_OPT_COMPRESS_DIRS;
878 break;
879 case 'E':
880 extended_opts = optarg;
881 break;
882 case 'p':
883 case 'a':
884 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
885 conflict_opt:
886 fatal_error(ctx,
887 _("Only one of the options -p/-a, -n or -y may be specified."));
888 }
889 ctx->options |= E2F_OPT_PREEN;
890 break;
891 case 'n':
892 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
893 goto conflict_opt;
894 ctx->options |= E2F_OPT_NO;
895 break;
896 case 'y':
897 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
898 goto conflict_opt;
899 ctx->options |= E2F_OPT_YES;
900 break;
901 case 't':
902 #ifdef RESOURCE_TRACK
903 if (ctx->options & E2F_OPT_TIME)
904 ctx->options |= E2F_OPT_TIME2;
905 else
906 ctx->options |= E2F_OPT_TIME;
907 #else
908 fprintf(stderr, _("The -t option is not "
909 "supported on this version of e2fsck.\n"));
910 #endif
911 break;
912 case 'c':
913 if (cflag++)
914 ctx->options |= E2F_OPT_WRITECHECK;
915 ctx->options |= E2F_OPT_CHECKBLOCKS;
916 break;
917 case 'r':
918 /* What we do by default, anyway! */
919 break;
920 case 'b':
921 res = sscanf(optarg, "%llu", &ctx->use_superblock);
922 if (res != 1)
923 goto sscanf_err;
924 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
925 break;
926 case 'B':
927 ctx->blocksize = atoi(optarg);
928 break;
929 case 'I':
930 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
931 if (res != 1)
932 goto sscanf_err;
933 break;
934 case 'j':
935 ctx->journal_name = blkid_get_devname(ctx->blkid,
936 optarg, NULL);
937 if (!ctx->journal_name) {
938 com_err(ctx->program_name, 0,
939 _("Unable to resolve '%s'"),
940 optarg);
941 fatal_error(ctx, 0);
942 }
943 break;
944 case 'P':
945 res = sscanf(optarg, "%d", &ctx->process_inode_size);
946 if (res != 1)
947 goto sscanf_err;
948 break;
949 case 'L':
950 replace_bad_blocks++;
951 /* fall through */
952 case 'l':
953 if (bad_blocks_file)
954 free(bad_blocks_file);
955 bad_blocks_file = string_copy(ctx, optarg, 0);
956 break;
957 case 'd':
958 ctx->options |= E2F_OPT_DEBUG;
959 break;
960 case 'f':
961 ctx->options |= E2F_OPT_FORCE;
962 break;
963 case 'F':
964 flush = 1;
965 break;
966 case 'v':
967 verbose = 1;
968 break;
969 case 'V':
970 show_version_only = 1;
971 break;
972 #ifdef MTRACE
973 case 'M':
974 mallwatch = (void *) strtol(optarg, NULL, 0);
975 break;
976 #endif
977 case 'N':
978 ctx->device_name = string_copy(ctx, optarg, 0);
979 break;
980 case 'k':
981 keep_bad_blocks++;
982 break;
983 case 'z':
984 ctx->undo_file = optarg;
985 break;
986 default:
987 usage(ctx);
988 }
989 if (show_version_only)
990 return 0;
991 if (optind != argc - 1)
992 usage(ctx);
993 if ((ctx->options & E2F_OPT_NO) &&
994 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
995 com_err(ctx->program_name, 0, "%s",
996 _("The -n and -D options are incompatible."));
997 fatal_error(ctx, 0);
998 }
999 if ((ctx->options & E2F_OPT_NO) && cflag) {
1000 com_err(ctx->program_name, 0, "%s",
1001 _("The -n and -c options are incompatible."));
1002 fatal_error(ctx, 0);
1003 }
1004 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
1005 com_err(ctx->program_name, 0, "%s",
1006 _("The -n and -l/-L options are incompatible."));
1007 fatal_error(ctx, 0);
1008 }
1009 if (ctx->options & E2F_OPT_NO)
1010 ctx->options |= E2F_OPT_READONLY;
1011
1012 ctx->io_options = strchr(argv[optind], '?');
1013 if (ctx->io_options)
1014 *ctx->io_options++ = 0;
1015 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
1016 if (!ctx->filesystem_name) {
1017 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
1018 argv[optind]);
1019 fatal_error(ctx, 0);
1020 }
1021 if (extended_opts)
1022 parse_extended_opts(ctx, extended_opts);
1023
1024 /* Complain about mutually exclusive rebuilding activities */
1025 if (getenv("E2FSCK_FIXES_ONLY"))
1026 ctx->options |= E2F_OPT_FIXES_ONLY;
1027 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1028 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1029 com_err(ctx->program_name, 0, "%s",
1030 _("The -D and -E fixes_only options are incompatible."));
1031 fatal_error(ctx, 0);
1032 }
1033 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1034 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1035 com_err(ctx->program_name, 0, "%s",
1036 _("The -E bmap2extent and fixes_only options are incompatible."));
1037 fatal_error(ctx, 0);
1038 }
1039
1040 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1041 config_fn[0] = cp;
1042 profile_set_syntax_err_cb(syntax_err_report);
1043 profile_init(config_fn, &ctx->profile);
1044
1045 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1046 &c);
1047 if (c)
1048 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1049 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1050 &c);
1051 if (c)
1052 verbose = 1;
1053
1054 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1055 0, 0, &c);
1056 if (c)
1057 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1058
1059 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1060 0, 0, &c);
1061 if (c)
1062 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1063
1064 if (ctx->readahead_kb == ~0ULL) {
1065 profile_get_integer(ctx->profile, "options",
1066 "readahead_mem_pct", 0, -1, &c);
1067 if (c >= 0 && c <= 100)
1068 ctx->readahead_kb = phys_mem_kb * c / 100;
1069 profile_get_integer(ctx->profile, "options",
1070 "readahead_kb", 0, -1, &c);
1071 if (c >= 0)
1072 ctx->readahead_kb = c;
1073 if (ctx->readahead_kb != ~0ULL &&
1074 ctx->readahead_kb > phys_mem_kb)
1075 ctx->readahead_kb = phys_mem_kb;
1076 }
1077
1078 /* Turn off discard in read-only mode */
1079 if ((ctx->options & E2F_OPT_NO) &&
1080 (ctx->options & E2F_OPT_DISCARD))
1081 ctx->options &= ~E2F_OPT_DISCARD;
1082
1083 if (flush) {
1084 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1085 if (fd < 0) {
1086 com_err("open", errno,
1087 _("while opening %s for flushing"),
1088 ctx->filesystem_name);
1089 fatal_error(ctx, 0);
1090 }
1091 if ((retval = ext2fs_sync_device(fd, 1))) {
1092 com_err("ext2fs_sync_device", retval,
1093 _("while trying to flush %s"),
1094 ctx->filesystem_name);
1095 fatal_error(ctx, 0);
1096 }
1097 close(fd);
1098 }
1099 if (cflag && bad_blocks_file) {
1100 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1101 "be both used at the same time.\n"));
1102 exit(FSCK_USAGE);
1103 }
1104 #ifdef HAVE_SIGNAL_H
1105 /*
1106 * Set up signal action
1107 */
1108 memset(&sa, 0, sizeof(struct sigaction));
1109 sa.sa_handler = signal_cancel;
1110 sigaction(SIGINT, &sa, 0);
1111 sigaction(SIGTERM, &sa, 0);
1112 #ifdef SA_RESTART
1113 sa.sa_flags = SA_RESTART;
1114 #endif
1115 sa.sa_handler = signal_progress_on;
1116 sigaction(SIGUSR1, &sa, 0);
1117 sa.sa_handler = signal_progress_off;
1118 sigaction(SIGUSR2, &sa, 0);
1119 #endif
1120
1121 /* Update our PATH to include /sbin if we need to run badblocks */
1122 if (cflag) {
1123 char *oldpath = getenv("PATH");
1124 char *newpath;
1125 int len = sizeof(PATH_SET) + 1;
1126
1127 if (oldpath)
1128 len += strlen(oldpath);
1129
1130 newpath = malloc(len);
1131 if (!newpath)
1132 fatal_error(ctx, "Couldn't malloc() newpath");
1133 strcpy(newpath, PATH_SET);
1134
1135 if (oldpath) {
1136 strcat(newpath, ":");
1137 strcat(newpath, oldpath);
1138 }
1139 putenv(newpath);
1140 }
1141 #ifdef CONFIG_JBD_DEBUG
1142 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1143 if (jbd_debug) {
1144 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1145 if (res != 1) {
1146 fprintf(stderr,
1147 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1148 jbd_debug);
1149 exit (1);
1150 }
1151 }
1152 #endif
1153 return 0;
1154
1155 sscanf_err:
1156 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1157 c, optarg);
1158 exit (1);
1159 }
1160
1161 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1162 ext2_filsys *ret_fs)
1163 {
1164 errcode_t retval;
1165
1166 *ret_fs = NULL;
1167 if (ctx->superblock && ctx->blocksize) {
1168 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1169 flags, ctx->superblock, ctx->blocksize,
1170 io_ptr, ret_fs);
1171 } else if (ctx->superblock) {
1172 int blocksize;
1173 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1174 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1175 if (*ret_fs) {
1176 ext2fs_free(*ret_fs);
1177 *ret_fs = NULL;
1178 }
1179 retval = ext2fs_open2(ctx->filesystem_name,
1180 ctx->io_options, flags,
1181 ctx->superblock, blocksize,
1182 io_ptr, ret_fs);
1183 if (!retval)
1184 break;
1185 }
1186 } else
1187 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1188 flags, 0, 0, io_ptr, ret_fs);
1189
1190 if (retval == 0) {
1191 (*ret_fs)->priv_data = ctx;
1192 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1193 "default", NULL);
1194 }
1195 return retval;
1196 }
1197
1198 static const char *my_ver_string = E2FSPROGS_VERSION;
1199 static const char *my_ver_date = E2FSPROGS_DATE;
1200
1201 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1202 {
1203 struct mmp_struct *mmp_s;
1204 unsigned int mmp_check_interval;
1205 errcode_t retval = 0;
1206 struct problem_context pctx;
1207 unsigned int wait_time = 0;
1208
1209 clear_problem_context(&pctx);
1210 if (fs->mmp_buf == NULL) {
1211 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1212 if (retval)
1213 goto check_error;
1214 }
1215
1216 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1217 if (retval)
1218 goto check_error;
1219
1220 mmp_s = fs->mmp_buf;
1221
1222 mmp_check_interval = fs->super->s_mmp_update_interval;
1223 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1224 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1225
1226 /*
1227 * If check_interval in MMP block is larger, use that instead of
1228 * check_interval from the superblock.
1229 */
1230 if (mmp_s->mmp_check_interval > mmp_check_interval)
1231 mmp_check_interval = mmp_s->mmp_check_interval;
1232
1233 wait_time = mmp_check_interval * 2 + 1;
1234
1235 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1236 retval = 0;
1237 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1238 retval = EXT2_ET_MMP_FSCK_ON;
1239 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1240 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1241
1242 if (retval)
1243 goto check_error;
1244
1245 /* Print warning if e2fsck will wait for more than 20 secs. */
1246 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1247 log_out(ctx, _("MMP interval is %u seconds and total wait "
1248 "time is %u seconds. Please wait...\n"),
1249 mmp_check_interval, wait_time * 2);
1250 }
1251
1252 return 0;
1253
1254 check_error:
1255
1256 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1257 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1258 fs->super->s_mmp_block = 0;
1259 ext2fs_mark_super_dirty(fs);
1260 retval = 0;
1261 }
1262 } else if (retval == EXT2_ET_MMP_FAILED) {
1263 com_err(ctx->program_name, retval, "%s",
1264 _("while checking MMP block"));
1265 dump_mmp_msg(fs->mmp_buf, NULL);
1266 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1267 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1268 com_err(ctx->program_name, retval, "%s",
1269 _("while checking MMP block"));
1270 dump_mmp_msg(fs->mmp_buf,
1271 _("If you are sure the filesystem is not "
1272 "in use on any node, run:\n"
1273 "'tune2fs -f -E clear_mmp %s'\n"),
1274 ctx->device_name);
1275 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1276 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1277 ext2fs_mmp_clear(fs);
1278 retval = 0;
1279 }
1280 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1281 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1282 ext2fs_mmp_clear(fs);
1283 retval = 0;
1284 }
1285 } else
1286 com_err(ctx->program_name, retval, "%s",
1287 _("while reading MMP block"));
1288 return retval;
1289 }
1290
1291 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1292 {
1293 errcode_t retval = ENOMEM;
1294 char *tdb_dir = NULL, *tdb_file = NULL;
1295 char *dev_name, *tmp_name;
1296 int free_tdb_dir = 0;
1297
1298 /* (re)open a specific undo file */
1299 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1300 retval = set_undo_io_backing_manager(*io_ptr);
1301 if (retval)
1302 goto err;
1303 *io_ptr = undo_io_manager;
1304 retval = set_undo_io_backup_file(ctx->undo_file);
1305 if (retval)
1306 goto err;
1307 printf(_("Overwriting existing filesystem; this can be undone "
1308 "using the command:\n"
1309 " e2undo %s %s\n\n"),
1310 ctx->undo_file, ctx->filesystem_name);
1311 return retval;
1312 }
1313
1314 /*
1315 * Configuration via a conf file would be
1316 * nice
1317 */
1318 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1319 if (!tdb_dir) {
1320 profile_get_string(ctx->profile, "defaults",
1321 "undo_dir", 0, "/var/lib/e2fsprogs",
1322 &tdb_dir);
1323 free_tdb_dir = 1;
1324 }
1325
1326 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1327 access(tdb_dir, W_OK)) {
1328 if (free_tdb_dir)
1329 free(tdb_dir);
1330 return 0;
1331 }
1332
1333 tmp_name = strdup(ctx->filesystem_name);
1334 if (!tmp_name)
1335 goto errout;
1336 dev_name = basename(tmp_name);
1337 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1338 if (!tdb_file) {
1339 free(tmp_name);
1340 goto errout;
1341 }
1342 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1343 free(tmp_name);
1344
1345 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1346 retval = errno;
1347 com_err(ctx->program_name, retval,
1348 _("while trying to delete %s"), tdb_file);
1349 goto errout;
1350 }
1351
1352 retval = set_undo_io_backing_manager(*io_ptr);
1353 if (retval)
1354 goto errout;
1355 *io_ptr = undo_io_manager;
1356 retval = set_undo_io_backup_file(tdb_file);
1357 if (retval)
1358 goto errout;
1359 printf(_("Overwriting existing filesystem; this can be undone "
1360 "using the command:\n"
1361 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1362
1363 if (free_tdb_dir)
1364 free(tdb_dir);
1365 free(tdb_file);
1366 return 0;
1367
1368 errout:
1369 if (free_tdb_dir)
1370 free(tdb_dir);
1371 free(tdb_file);
1372 err:
1373 com_err(ctx->program_name, retval, "%s",
1374 _("while trying to setup undo file\n"));
1375 return retval;
1376 }
1377
1378 int main (int argc, char *argv[])
1379 {
1380 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1381 int exit_value = FSCK_OK;
1382 ext2_filsys fs = 0;
1383 io_manager io_ptr;
1384 struct ext2_super_block *sb;
1385 const char *lib_ver_date;
1386 int my_ver, lib_ver;
1387 e2fsck_t ctx;
1388 blk64_t orig_superblock = ~(blk64_t)0;
1389 struct problem_context pctx;
1390 int flags, run_result, was_changed;
1391 int journal_size;
1392 int sysval, sys_page_size = 4096;
1393 int old_bitmaps;
1394 __u32 features[3];
1395 char *cp;
1396 enum quota_type qtype;
1397 struct ext2fs_journal_params jparams;
1398
1399 clear_problem_context(&pctx);
1400 sigcatcher_setup();
1401 #ifdef MTRACE
1402 mtrace();
1403 #endif
1404 #ifdef MCHECK
1405 mcheck(0);
1406 #endif
1407 #ifdef ENABLE_NLS
1408 setlocale(LC_MESSAGES, "");
1409 setlocale(LC_CTYPE, "");
1410 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1411 textdomain(NLS_CAT_NAME);
1412 set_com_err_gettext(gettext);
1413 #endif
1414 my_ver = ext2fs_parse_version_string(my_ver_string);
1415 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1416 if (my_ver > lib_ver) {
1417 fprintf( stderr, "%s",
1418 _("Error: ext2fs library version out of date!\n"));
1419 show_version_only++;
1420 }
1421
1422 retval = PRS(argc, argv, &ctx);
1423 if (retval) {
1424 com_err("e2fsck", retval, "%s",
1425 _("while trying to initialize program"));
1426 exit(FSCK_ERROR);
1427 }
1428 reserve_stdio_fds();
1429
1430 set_up_logging(ctx);
1431 if (ctx->logf) {
1432 int i;
1433
1434 fputs("E2fsck run: ", ctx->logf);
1435 for (i = 0; i < argc; i++) {
1436 if (i)
1437 fputc(' ', ctx->logf);
1438 fputs(argv[i], ctx->logf);
1439 }
1440 fputc('\n', ctx->logf);
1441 }
1442 if (ctx->problem_logf) {
1443 int i;
1444
1445 fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n",
1446 ctx->problem_logf);
1447 fprintf(ctx->problem_logf, "<problem_log time=\"%lu\">\n",
1448 (unsigned long) ctx->now);
1449 fprintf(ctx->problem_logf, "<invocation prog=\"%s\"",
1450 argv[0]);
1451 for (i = 1; i < argc; i++)
1452 fprintf(ctx->problem_logf, " arg%d=\"%s\"", i, argv[i]);
1453 fputs("/>\n", ctx->problem_logf);
1454 }
1455
1456 init_resource_track(&ctx->global_rtrack, NULL);
1457 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1458 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1459 my_ver_date);
1460
1461 if (show_version_only) {
1462 log_err(ctx, _("\tUsing %s, %s\n"),
1463 error_message(EXT2_ET_BASE), lib_ver_date);
1464 exit(FSCK_OK);
1465 }
1466
1467 check_mount(ctx);
1468
1469 if (!(ctx->options & E2F_OPT_PREEN) &&
1470 !(ctx->options & E2F_OPT_NO) &&
1471 !(ctx->options & E2F_OPT_YES)) {
1472 if (!ctx->interactive)
1473 fatal_error(ctx,
1474 _("need terminal for interactive repairs"));
1475 }
1476 ctx->superblock = ctx->use_superblock;
1477
1478 flags = EXT2_FLAG_SKIP_MMP | EXT2_FLAG_THREADS;
1479 restart:
1480 #ifdef CONFIG_TESTIO_DEBUG
1481 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1482 io_ptr = test_io_manager;
1483 test_io_backing_manager = unix_io_manager;
1484 } else
1485 #endif
1486 io_ptr = unix_io_manager;
1487 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1488 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1489 &old_bitmaps);
1490 if (!old_bitmaps)
1491 flags |= EXT2_FLAG_64BITS;
1492 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1493 flags |= EXT2_FLAG_RW;
1494 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1495 ctx->mount_flags & EXT2_MF_READONLY))
1496 flags |= EXT2_FLAG_EXCLUSIVE;
1497 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1498 (ctx->options & E2F_OPT_FORCE))
1499 flags &= ~EXT2_FLAG_EXCLUSIVE;
1500 }
1501
1502 if (ctx->undo_file) {
1503 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1504 if (retval)
1505 exit(FSCK_ERROR);
1506 }
1507
1508 ctx->openfs_flags = flags;
1509 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1510
1511 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1512 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1513 ((retval == EXT2_ET_BAD_MAGIC) ||
1514 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1515 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1516 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1517 if (retval) {
1518 pctx.errcode = retval;
1519 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1520 }
1521 if (retval2) {
1522 pctx.errcode = retval2;
1523 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1524 }
1525 pctx.errcode = 0;
1526 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1527 retval = retval2;
1528 goto failure;
1529 }
1530 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1531 ext2fs_free(fs);
1532 fs = NULL;
1533 }
1534 if (!fs || (fs->group_desc_count > 1)) {
1535 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1536 ctx->program_name,
1537 retval ? _("Superblock invalid,") :
1538 _("Group descriptors look bad..."));
1539 orig_superblock = ctx->superblock;
1540 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1541 if (fs)
1542 ext2fs_close_free(&fs);
1543 orig_retval = retval;
1544 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1545 if ((orig_retval == 0) && retval != 0) {
1546 if (fs)
1547 ext2fs_close_free(&fs);
1548 log_out(ctx, _("%s: %s while using the "
1549 "backup blocks"),
1550 ctx->program_name,
1551 error_message(retval));
1552 log_out(ctx, _("%s: going back to original "
1553 "superblock\n"),
1554 ctx->program_name);
1555 ctx->superblock = orig_superblock;
1556 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1557 }
1558 }
1559 }
1560 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1561 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1562 fs && fs->super) {
1563 sb = fs->super;
1564 features[0] = (sb->s_feature_compat &
1565 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1566 features[1] = (sb->s_feature_incompat &
1567 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1568 features[2] = (sb->s_feature_ro_compat &
1569 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1570 if (features[0] || features[1] || features[2])
1571 goto print_unsupp_features;
1572 }
1573 failure:
1574 if (retval) {
1575 if (orig_retval)
1576 retval = orig_retval;
1577 com_err(ctx->program_name, retval, _("while trying to open %s"),
1578 ctx->filesystem_name);
1579 if (retval == EXT2_ET_REV_TOO_HIGH) {
1580 log_out(ctx, "%s",
1581 _("The filesystem revision is apparently "
1582 "too high for this version of e2fsck.\n"
1583 "(Or the filesystem superblock "
1584 "is corrupt)\n\n"));
1585 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1586 } else if (retval == EXT2_ET_SHORT_READ)
1587 log_out(ctx, "%s",
1588 _("Could this be a zero-length partition?\n"));
1589 else if ((retval == EPERM) || (retval == EACCES))
1590 log_out(ctx, _("You must have %s access to the "
1591 "filesystem or be root\n"),
1592 (ctx->options & E2F_OPT_READONLY) ?
1593 "r/o" : "r/w");
1594 else if (retval == ENXIO)
1595 log_out(ctx, "%s",
1596 _("Possibly non-existent or swap device?\n"));
1597 else if (retval == EBUSY)
1598 log_out(ctx, "%s", _("Filesystem mounted or opened "
1599 "exclusively by another program?\n"));
1600 else if (retval == ENOENT)
1601 log_out(ctx, "%s",
1602 _("Possibly non-existent device?\n"));
1603 #ifdef EROFS
1604 else if (retval == EROFS)
1605 log_out(ctx, "%s", _("Disk write-protected; use the "
1606 "-n option to do a read-only\n"
1607 "check of the device.\n"));
1608 #endif
1609 else {
1610 /*
1611 * Let's try once more will less consistency checking
1612 * so that we are able to recover from more errors
1613 * (e.g. some tool messing up some value in the sb).
1614 */
1615 if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) &&
1616 !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) {
1617 if (fs)
1618 ext2fs_close_free(&fs);
1619 log_out(ctx, _("%s: Trying to load superblock "
1620 "despite errors...\n"),
1621 ctx->program_name);
1622 flags |= EXT2_FLAG_IGNORE_SB_ERRORS;
1623 /*
1624 * If we tried backup sb, revert to the
1625 * original one now.
1626 */
1627 if (orig_superblock != ~(blk64_t)0)
1628 ctx->superblock = orig_superblock;
1629 goto restart;
1630 }
1631 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1632 if (retval == EXT2_ET_BAD_MAGIC)
1633 check_plausibility(ctx->filesystem_name,
1634 CHECK_FS_EXIST, NULL);
1635 }
1636 fatal_error(ctx, 0);
1637 }
1638 /*
1639 * We only update the master superblock because (a) paranoia;
1640 * we don't want to corrupt the backup superblocks, and (b) we
1641 * don't need to update the mount count and last checked
1642 * fields in the backup superblock (the kernel doesn't update
1643 * the backup superblocks anyway). With newer versions of the
1644 * library this flag is set by ext2fs_open2(), but we set this
1645 * here just to be sure. (No, we don't support e2fsck running
1646 * with some other libext2fs than the one that it was shipped
1647 * with, but just in case....)
1648 */
1649 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1650
1651 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1652 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1653 int need_restart = 0;
1654
1655 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1656 blocksize,
1657 &ctx->num_blocks);
1658 /*
1659 * The floppy driver refuses to allow anyone else to
1660 * open the device if has been opened with O_EXCL;
1661 * this is unlike other block device drivers in Linux.
1662 * To handle this, we close the filesystem and then
1663 * reopen the filesystem after we get the device size.
1664 */
1665 if (pctx.errcode == EBUSY) {
1666 ext2fs_close_free(&fs);
1667 need_restart++;
1668 pctx.errcode =
1669 ext2fs_get_device_size2(ctx->filesystem_name,
1670 blocksize,
1671 &ctx->num_blocks);
1672 }
1673 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1674 ctx->num_blocks = 0;
1675 else if (pctx.errcode) {
1676 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1677 ctx->flags |= E2F_FLAG_ABORT;
1678 fatal_error(ctx, 0);
1679 }
1680 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1681 if (need_restart)
1682 goto restart;
1683 }
1684
1685 ctx->fs = fs;
1686 fs->now = ctx->now;
1687 sb = fs->super;
1688
1689 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1690 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1691 _("while trying to open %s"),
1692 ctx->filesystem_name);
1693 get_newer:
1694 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1695 }
1696
1697 /*
1698 * Set the device name, which is used whenever we print error
1699 * or informational messages to the user.
1700 */
1701 if (ctx->device_name == 0 && sb->s_volume_name[0])
1702 ctx->device_name = string_copy(ctx, (char *) sb->s_volume_name,
1703 sizeof(sb->s_volume_name));
1704
1705 if (ctx->device_name == 0)
1706 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1707 for (cp = ctx->device_name; *cp; cp++)
1708 if (isspace(*cp) || *cp == ':')
1709 *cp = '_';
1710
1711 if (ctx->problem_logf) {
1712
1713 fprintf(ctx->problem_logf, "<filesystem dev=\"%s\"",
1714 ctx->filesystem_name);
1715 if (!uuid_is_null(sb->s_uuid)) {
1716 char buf[48];
1717
1718 uuid_unparse(sb->s_uuid, buf);
1719 fprintf(ctx->problem_logf, " uuid=\"%s\"", buf);
1720 }
1721 if (sb->s_volume_name[0])
1722 fprintf(ctx->problem_logf, " label=\"%.*s\"",
1723 EXT2_LEN_STR(sb->s_volume_name));
1724
1725 fputs("/>\n", ctx->problem_logf);
1726 }
1727
1728 ehandler_init(fs->io);
1729
1730 if (ext2fs_has_feature_mmp(fs->super) &&
1731 (flags & EXT2_FLAG_SKIP_MMP)) {
1732 if (e2fsck_check_mmp(fs, ctx))
1733 fatal_error(ctx, 0);
1734
1735 /*
1736 * Restart in order to reopen fs but this time start mmp.
1737 */
1738 ext2fs_close_free(&ctx->fs);
1739 flags &= ~EXT2_FLAG_SKIP_MMP;
1740 goto restart;
1741 }
1742
1743 if (ctx->logf)
1744 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1745 e2p_uuid2str(sb->s_uuid));
1746
1747 /*
1748 * Make sure the ext3 superblock fields are consistent.
1749 */
1750 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1751 retval = e2fsck_check_ext3_journal(ctx);
1752 if (retval) {
1753 com_err(ctx->program_name, retval,
1754 _("while checking journal for %s"),
1755 ctx->device_name);
1756 fatal_error(ctx,
1757 _("Cannot proceed with file system check"));
1758 }
1759 }
1760
1761 /*
1762 * Check to see if we need to do ext3-style recovery. If so,
1763 * do it, and then restart the fsck.
1764 */
1765 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1766 if (ctx->options & E2F_OPT_READONLY) {
1767 log_out(ctx, "%s",
1768 _("Warning: skipping journal recovery because "
1769 "doing a read-only filesystem check.\n"));
1770 io_channel_flush(ctx->fs->io);
1771 } else {
1772 if (ctx->flags & E2F_FLAG_RESTARTED) {
1773 /*
1774 * Whoops, we attempted to run the
1775 * journal twice. This should never
1776 * happen, unless the hardware or
1777 * device driver is being bogus.
1778 */
1779 com_err(ctx->program_name, 0,
1780 _("unable to set superblock flags "
1781 "on %s\n"), ctx->device_name);
1782 fatal_error(ctx, 0);
1783 }
1784 retval = e2fsck_run_ext3_journal(ctx);
1785 if (retval == EFSBADCRC) {
1786 log_out(ctx, _("Journal checksum error "
1787 "found in %s\n"),
1788 ctx->device_name);
1789 } else if (retval == EFSCORRUPTED) {
1790 log_out(ctx, _("Journal corrupted in %s\n"),
1791 ctx->device_name);
1792 } else if (retval) {
1793 com_err(ctx->program_name, retval,
1794 _("while recovering journal of %s"),
1795 ctx->device_name);
1796 }
1797 ext2fs_close_free(&ctx->fs);
1798 ctx->flags |= E2F_FLAG_RESTARTED;
1799 goto restart;
1800 }
1801 }
1802
1803 /*
1804 * Check for compatibility with the feature sets. We need to
1805 * be more stringent than ext2fs_open().
1806 */
1807 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1808 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1809 features[2] = (sb->s_feature_ro_compat &
1810 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1811 print_unsupp_features:
1812 if (features[0] || features[1] || features[2]) {
1813 int i, j;
1814 __u32 *mask = features, m;
1815
1816 log_err(ctx, _("%s has unsupported feature(s):"),
1817 ctx->filesystem_name);
1818
1819 for (i=0; i <3; i++,mask++) {
1820 for (j=0,m=1; j < 32; j++, m<<=1) {
1821 if (*mask & m)
1822 log_err(ctx, " %s",
1823 e2p_feature2string(i, m));
1824 }
1825 }
1826 log_err(ctx, "\n");
1827 goto get_newer;
1828 }
1829
1830 if (ext2fs_has_feature_casefold(sb) && !fs->encoding) {
1831 log_err(ctx, _("%s has unsupported encoding: %0x\n"),
1832 ctx->filesystem_name, sb->s_encoding);
1833 goto get_newer;
1834 }
1835
1836 /*
1837 * If the user specified a specific superblock, presumably the
1838 * master superblock has been trashed. So we mark the
1839 * superblock as dirty, so it can be written out.
1840 */
1841 if (ctx->superblock &&
1842 !(ctx->options & E2F_OPT_READONLY))
1843 ext2fs_mark_super_dirty(fs);
1844
1845 /*
1846 * Calculate the number of filesystem blocks per pagesize. If
1847 * fs->blocksize > page_size, set the number of blocks per
1848 * pagesize to 1 to avoid division by zero errors.
1849 */
1850 #ifdef _SC_PAGESIZE
1851 sysval = sysconf(_SC_PAGESIZE);
1852 if (sysval > 0)
1853 sys_page_size = sysval;
1854 #endif /* _SC_PAGESIZE */
1855 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1856 if (ctx->blocks_per_page == 0)
1857 ctx->blocks_per_page = 1;
1858
1859 if (ctx->superblock)
1860 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1861 ext2fs_mark_valid(fs);
1862 check_super_block(ctx);
1863 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1864 fatal_error(ctx, 0);
1865 check_if_skip(ctx);
1866 check_resize_inode(ctx);
1867 if (bad_blocks_file)
1868 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1869 else if (cflag)
1870 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1871 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1872 fatal_error(ctx, 0);
1873
1874 /*
1875 * Mark the system as valid, 'til proven otherwise
1876 */
1877 ext2fs_mark_valid(fs);
1878
1879 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1880 if (retval) {
1881 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1882 ctx->program_name, error_message(retval));
1883 preenhalt(ctx);
1884 log_out(ctx, "%s", _("This doesn't bode well, "
1885 "but we'll try to go on...\n"));
1886 }
1887
1888 /*
1889 * Save the journal size in megabytes.
1890 * Try and use the journal size from the backup else let e2fsck
1891 * find the default journal size. If fast commit feature is enabled,
1892 * it is not clear how many of the journal blocks were fast commit
1893 * blocks. So, ignore the size of journal found in backup.
1894 *
1895 * TODO: Add a new backup type that captures fast commit info as
1896 * well.
1897 */
1898 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS &&
1899 !ext2fs_has_feature_fast_commit(sb))
1900 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1901 (sb->s_jnl_blocks[16] >> 20);
1902 else
1903 journal_size = -1;
1904
1905 if (ext2fs_has_feature_quota(sb)) {
1906 /* Quotas were enabled. Do quota accounting during fsck. */
1907 clear_problem_context(&pctx);
1908 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1909 if (pctx.errcode) {
1910 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1911 fatal_error(ctx, 0);
1912 }
1913 }
1914
1915 run_result = e2fsck_run(ctx);
1916 e2fsck_clear_progbar(ctx);
1917
1918 if (!ctx->invalid_bitmaps &&
1919 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1920 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1921 if (journal_size < 1024) {
1922 ext2fs_get_journal_params(&jparams, fs);
1923 } else {
1924 jparams.num_journal_blocks = journal_size;
1925 jparams.num_fc_blocks = 0;
1926 }
1927 log_out(ctx, _("Creating journal (%d blocks): "),
1928 jparams.num_journal_blocks);
1929 fflush(stdout);
1930 retval = ext2fs_add_journal_inode3(fs, &jparams, ~0ULL, 0);
1931 if (retval) {
1932 log_out(ctx, "%s: while trying to create "
1933 "journal\n", error_message(retval));
1934 goto no_journal;
1935 }
1936 log_out(ctx, "%s", _(" Done.\n"));
1937 log_out(ctx, "%s",
1938 _("\n*** journal has been regenerated ***\n"));
1939 }
1940 }
1941 no_journal:
1942
1943 if (run_result & E2F_FLAG_ABORT) {
1944 fatal_error(ctx, _("aborted"));
1945 } else if (run_result & E2F_FLAG_CANCEL) {
1946 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1947 ctx->device_name : ctx->filesystem_name);
1948 exit_value |= FSCK_CANCELED;
1949 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1950 int needs_writeout;
1951
1952 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1953 if (*quota_sb_inump(sb, qtype) == 0)
1954 continue;
1955 needs_writeout = 0;
1956 pctx.num = qtype;
1957 retval = quota_compare_and_update(ctx->qctx, qtype,
1958 &needs_writeout);
1959 if ((retval || needs_writeout) &&
1960 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1961 pctx.errcode = quota_write_inode(ctx->qctx,
1962 1 << qtype);
1963 if (pctx.errcode)
1964 (void) fix_problem(ctx,
1965 PR_6_WRITE_QUOTAS, &pctx);
1966 }
1967 }
1968 quota_release_context(&ctx->qctx);
1969 }
1970
1971 if (run_result == E2F_FLAG_RESTART) {
1972 log_out(ctx, "%s",
1973 _("Restarting e2fsck from the beginning...\n"));
1974 retval = e2fsck_reset_context(ctx);
1975 if (retval) {
1976 com_err(ctx->program_name, retval, "%s",
1977 _("while resetting context"));
1978 fatal_error(ctx, 0);
1979 }
1980 ext2fs_close_free(&ctx->fs);
1981 goto restart;
1982 }
1983
1984 #ifdef MTRACE
1985 mtrace_print("Cleanup");
1986 #endif
1987 was_changed = ext2fs_test_changed(fs);
1988 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1989 !(ctx->options & E2F_OPT_READONLY)) {
1990 if (ext2fs_test_valid(fs)) {
1991 if (!(sb->s_state & EXT2_VALID_FS))
1992 exit_value |= FSCK_NONDESTRUCT;
1993 sb->s_state = EXT2_VALID_FS;
1994 if (check_backup_super_block(ctx))
1995 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1996 } else
1997 sb->s_state &= ~EXT2_VALID_FS;
1998 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1999 sb->s_lastcheck = ctx->now;
2000 sb->s_mnt_count = 0;
2001 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
2002 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
2003 if (pctx.errcode)
2004 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
2005 ext2fs_mark_super_dirty(fs);
2006 }
2007
2008 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
2009 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) &&
2010 (ctx->options & E2F_OPT_NO))
2011 /* Don't try to write or flush I/O, we just wanted to know whether or
2012 * not there were enough free blocks to undo deduplication.
2013 */
2014 goto skip_write;
2015
2016 if (!(ctx->options & E2F_OPT_READONLY)) {
2017 e2fsck_write_bitmaps(ctx);
2018 if (fs->flags & EXT2_FLAG_DIRTY) {
2019 pctx.errcode = ext2fs_flush(ctx->fs);
2020 if (pctx.errcode)
2021 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
2022 }
2023 pctx.errcode = io_channel_flush(ctx->fs->io);
2024 if (pctx.errcode)
2025 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
2026 }
2027
2028 if (was_changed) {
2029 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
2030
2031 if (fs_fixed)
2032 exit_value |= FSCK_NONDESTRUCT;
2033 if (!(ctx->options & E2F_OPT_PREEN)) {
2034 #if 0 /* Do this later; it breaks too many tests' golden outputs */
2035 log_out(ctx, fs_fixed ?
2036 _("\n%s: ***** FILE SYSTEM ERRORS "
2037 "CORRECTED *****\n") :
2038 _("%s: File system was modified.\n"),
2039 ctx->device_name);
2040 #else
2041 log_out(ctx,
2042 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
2043 ctx->device_name);
2044 #endif
2045 }
2046 if (ctx->mount_flags & EXT2_MF_ISROOT) {
2047 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
2048 ctx->device_name);
2049 exit_value |= FSCK_REBOOT;
2050 }
2051 }
2052
2053 skip_write:
2054 if (!ext2fs_test_valid(fs) ||
2055 ((exit_value & FSCK_CANCELED) &&
2056 (sb->s_state & EXT2_ERROR_FS))) {
2057 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
2058 "errors **********\n\n"), ctx->device_name);
2059 exit_value |= FSCK_UNCORRECTED;
2060 exit_value &= ~FSCK_NONDESTRUCT;
2061 }
2062 if (exit_value & FSCK_CANCELED) {
2063 int allow_cancellation;
2064
2065 profile_get_boolean(ctx->profile, "options",
2066 "allow_cancellation", 0, 0,
2067 &allow_cancellation);
2068 exit_value &= ~FSCK_NONDESTRUCT;
2069 if (allow_cancellation && ext2fs_test_valid(fs) &&
2070 (sb->s_state & EXT2_VALID_FS) &&
2071 !(sb->s_state & EXT2_ERROR_FS))
2072 exit_value = 0;
2073 } else
2074 show_stats(ctx);
2075
2076 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
2077
2078 ext2fs_close_free(&ctx->fs);
2079 free(ctx->journal_name);
2080
2081 if (ctx->logf)
2082 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
2083 e2fsck_free_context(ctx);
2084 remove_error_table(&et_ext2_error_table);
2085 remove_error_table(&et_prof_error_table);
2086 return exit_value;
2087 }
Unnamed repository; edit this file 'description' to name the repository.