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libext2fs: support encoding when calculating dx hashes
[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 #include <ext2fs/nls.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, "bmap2extent") == 0) {
741 ctx->options |= E2F_OPT_CONVERT_BMAP;
742 continue;
743 } else if (strcmp(token, "fixes_only") == 0) {
744 ctx->options |= E2F_OPT_FIXES_ONLY;
745 continue;
746 } else if (strcmp(token, "unshare_blocks") == 0) {
747 ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
748 ctx->options |= E2F_OPT_FORCE;
749 continue;
750 } else {
751 fprintf(stderr, _("Unknown extended option: %s\n"),
752 token);
753 extended_usage++;
754 }
755 }
756 free(buf);
757
758 if (extended_usage) {
759 fputs(_("\nExtended options are separated by commas, "
760 "and may take an argument which\n"
761 "is set off by an equals ('=') sign. "
762 "Valid extended options are:\n\n"), stderr);
763 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
764 fputs("\tfragcheck\n", stderr);
765 fputs("\tjournal_only\n", stderr);
766 fputs("\tdiscard\n", stderr);
767 fputs("\tnodiscard\n", stderr);
768 fputs("\toptimize_extents\n", stderr);
769 fputs("\tno_optimize_extents\n", stderr);
770 fputs("\tinode_count_fullmap\n", stderr);
771 fputs("\tno_inode_count_fullmap\n", stderr);
772 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
773 fputs("\tbmap2extent\n", stderr);
774 fputs("\tunshare_blocks\n", stderr);
775 fputs("\tfixes_only\n", stderr);
776 fputc('\n', stderr);
777 exit(1);
778 }
779 }
780
781 static void syntax_err_report(const char *filename, long err, int line_num)
782 {
783 fprintf(stderr,
784 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
785 filename, line_num, error_message(err));
786 exit(FSCK_ERROR);
787 }
788
789 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
790
791 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
792 {
793 int flush = 0;
794 int c, fd;
795 #ifdef MTRACE
796 extern void *mallwatch;
797 #endif
798 e2fsck_t ctx;
799 errcode_t retval;
800 #ifdef HAVE_SIGNAL_H
801 struct sigaction sa;
802 #endif
803 char *extended_opts = 0;
804 char *cp;
805 int res; /* result of sscanf */
806 #ifdef CONFIG_JBD_DEBUG
807 char *jbd_debug;
808 #endif
809 unsigned long long phys_mem_kb;
810
811 retval = e2fsck_allocate_context(&ctx);
812 if (retval)
813 return retval;
814
815 *ret_ctx = ctx;
816 e2fsck_global_ctx = ctx;
817
818 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
819 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
820 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
821 ctx->interactive = 1;
822 } else {
823 ctx->start_meta[0] = '\001';
824 ctx->stop_meta[0] = '\002';
825 }
826 memset(bar, '=', sizeof(bar)-1);
827 memset(spaces, ' ', sizeof(spaces)-1);
828 add_error_table(&et_ext2_error_table);
829 add_error_table(&et_prof_error_table);
830 blkid_get_cache(&ctx->blkid, NULL);
831
832 if (argc && *argv)
833 ctx->program_name = *argv;
834 else
835 ctx->program_name = "e2fsck";
836
837 phys_mem_kb = get_memory_size() / 1024;
838 ctx->readahead_kb = ~0ULL;
839 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
840 switch (c) {
841 case 'C':
842 ctx->progress = e2fsck_update_progress;
843 res = sscanf(optarg, "%d", &ctx->progress_fd);
844 if (res != 1)
845 goto sscanf_err;
846
847 if (ctx->progress_fd < 0) {
848 ctx->progress = 0;
849 ctx->progress_fd = ctx->progress_fd * -1;
850 }
851 if (!ctx->progress_fd)
852 break;
853 /* Validate the file descriptor to avoid disasters */
854 fd = dup(ctx->progress_fd);
855 if (fd < 0) {
856 fprintf(stderr,
857 _("Error validating file descriptor %d: %s\n"),
858 ctx->progress_fd,
859 error_message(errno));
860 fatal_error(ctx,
861 _("Invalid completion information file descriptor"));
862 } else
863 close(fd);
864 break;
865 case 'D':
866 ctx->options |= E2F_OPT_COMPRESS_DIRS;
867 break;
868 case 'E':
869 extended_opts = optarg;
870 break;
871 case 'p':
872 case 'a':
873 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
874 conflict_opt:
875 fatal_error(ctx,
876 _("Only one of the options -p/-a, -n or -y may be specified."));
877 }
878 ctx->options |= E2F_OPT_PREEN;
879 break;
880 case 'n':
881 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
882 goto conflict_opt;
883 ctx->options |= E2F_OPT_NO;
884 break;
885 case 'y':
886 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
887 goto conflict_opt;
888 ctx->options |= E2F_OPT_YES;
889 break;
890 case 't':
891 #ifdef RESOURCE_TRACK
892 if (ctx->options & E2F_OPT_TIME)
893 ctx->options |= E2F_OPT_TIME2;
894 else
895 ctx->options |= E2F_OPT_TIME;
896 #else
897 fprintf(stderr, _("The -t option is not "
898 "supported on this version of e2fsck.\n"));
899 #endif
900 break;
901 case 'c':
902 if (cflag++)
903 ctx->options |= E2F_OPT_WRITECHECK;
904 ctx->options |= E2F_OPT_CHECKBLOCKS;
905 break;
906 case 'r':
907 /* What we do by default, anyway! */
908 break;
909 case 'b':
910 res = sscanf(optarg, "%llu", &ctx->use_superblock);
911 if (res != 1)
912 goto sscanf_err;
913 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
914 break;
915 case 'B':
916 ctx->blocksize = atoi(optarg);
917 break;
918 case 'I':
919 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
920 if (res != 1)
921 goto sscanf_err;
922 break;
923 case 'j':
924 ctx->journal_name = blkid_get_devname(ctx->blkid,
925 optarg, NULL);
926 if (!ctx->journal_name) {
927 com_err(ctx->program_name, 0,
928 _("Unable to resolve '%s'"),
929 optarg);
930 fatal_error(ctx, 0);
931 }
932 break;
933 case 'P':
934 res = sscanf(optarg, "%d", &ctx->process_inode_size);
935 if (res != 1)
936 goto sscanf_err;
937 break;
938 case 'L':
939 replace_bad_blocks++;
940 /* fall through */
941 case 'l':
942 if (bad_blocks_file)
943 free(bad_blocks_file);
944 bad_blocks_file = string_copy(ctx, optarg, 0);
945 break;
946 case 'd':
947 ctx->options |= E2F_OPT_DEBUG;
948 break;
949 case 'f':
950 ctx->options |= E2F_OPT_FORCE;
951 break;
952 case 'F':
953 flush = 1;
954 break;
955 case 'v':
956 verbose = 1;
957 break;
958 case 'V':
959 show_version_only = 1;
960 break;
961 #ifdef MTRACE
962 case 'M':
963 mallwatch = (void *) strtol(optarg, NULL, 0);
964 break;
965 #endif
966 case 'N':
967 ctx->device_name = string_copy(ctx, optarg, 0);
968 break;
969 case 'k':
970 keep_bad_blocks++;
971 break;
972 case 'z':
973 ctx->undo_file = optarg;
974 break;
975 default:
976 usage(ctx);
977 }
978 if (show_version_only)
979 return 0;
980 if (optind != argc - 1)
981 usage(ctx);
982 if ((ctx->options & E2F_OPT_NO) &&
983 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
984 com_err(ctx->program_name, 0, "%s",
985 _("The -n and -D options are incompatible."));
986 fatal_error(ctx, 0);
987 }
988 if ((ctx->options & E2F_OPT_NO) && cflag) {
989 com_err(ctx->program_name, 0, "%s",
990 _("The -n and -c options are incompatible."));
991 fatal_error(ctx, 0);
992 }
993 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
994 com_err(ctx->program_name, 0, "%s",
995 _("The -n and -l/-L options are incompatible."));
996 fatal_error(ctx, 0);
997 }
998 if (ctx->options & E2F_OPT_NO)
999 ctx->options |= E2F_OPT_READONLY;
1000
1001 ctx->io_options = strchr(argv[optind], '?');
1002 if (ctx->io_options)
1003 *ctx->io_options++ = 0;
1004 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
1005 if (!ctx->filesystem_name) {
1006 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
1007 argv[optind]);
1008 fatal_error(ctx, 0);
1009 }
1010 if (extended_opts)
1011 parse_extended_opts(ctx, extended_opts);
1012
1013 /* Complain about mutually exclusive rebuilding activities */
1014 if (getenv("E2FSCK_FIXES_ONLY"))
1015 ctx->options |= E2F_OPT_FIXES_ONLY;
1016 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1017 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1018 com_err(ctx->program_name, 0, "%s",
1019 _("The -D and -E fixes_only options are incompatible."));
1020 fatal_error(ctx, 0);
1021 }
1022 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1023 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1024 com_err(ctx->program_name, 0, "%s",
1025 _("The -E bmap2extent and fixes_only options are incompatible."));
1026 fatal_error(ctx, 0);
1027 }
1028
1029 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1030 config_fn[0] = cp;
1031 profile_set_syntax_err_cb(syntax_err_report);
1032 profile_init(config_fn, &ctx->profile);
1033
1034 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1035 &c);
1036 if (c)
1037 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1038 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1039 &c);
1040 if (c)
1041 verbose = 1;
1042
1043 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1044 0, 0, &c);
1045 if (c)
1046 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1047
1048 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1049 0, 0, &c);
1050 if (c)
1051 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1052
1053 if (ctx->readahead_kb == ~0ULL) {
1054 profile_get_integer(ctx->profile, "options",
1055 "readahead_mem_pct", 0, -1, &c);
1056 if (c >= 0 && c <= 100)
1057 ctx->readahead_kb = phys_mem_kb * c / 100;
1058 profile_get_integer(ctx->profile, "options",
1059 "readahead_kb", 0, -1, &c);
1060 if (c >= 0)
1061 ctx->readahead_kb = c;
1062 if (ctx->readahead_kb != ~0ULL &&
1063 ctx->readahead_kb > phys_mem_kb)
1064 ctx->readahead_kb = phys_mem_kb;
1065 }
1066
1067 /* Turn off discard in read-only mode */
1068 if ((ctx->options & E2F_OPT_NO) &&
1069 (ctx->options & E2F_OPT_DISCARD))
1070 ctx->options &= ~E2F_OPT_DISCARD;
1071
1072 if (flush) {
1073 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1074 if (fd < 0) {
1075 com_err("open", errno,
1076 _("while opening %s for flushing"),
1077 ctx->filesystem_name);
1078 fatal_error(ctx, 0);
1079 }
1080 if ((retval = ext2fs_sync_device(fd, 1))) {
1081 com_err("ext2fs_sync_device", retval,
1082 _("while trying to flush %s"),
1083 ctx->filesystem_name);
1084 fatal_error(ctx, 0);
1085 }
1086 close(fd);
1087 }
1088 if (cflag && bad_blocks_file) {
1089 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1090 "be both used at the same time.\n"));
1091 exit(FSCK_USAGE);
1092 }
1093 #ifdef HAVE_SIGNAL_H
1094 /*
1095 * Set up signal action
1096 */
1097 memset(&sa, 0, sizeof(struct sigaction));
1098 sa.sa_handler = signal_cancel;
1099 sigaction(SIGINT, &sa, 0);
1100 sigaction(SIGTERM, &sa, 0);
1101 #ifdef SA_RESTART
1102 sa.sa_flags = SA_RESTART;
1103 #endif
1104 sa.sa_handler = signal_progress_on;
1105 sigaction(SIGUSR1, &sa, 0);
1106 sa.sa_handler = signal_progress_off;
1107 sigaction(SIGUSR2, &sa, 0);
1108 #endif
1109
1110 /* Update our PATH to include /sbin if we need to run badblocks */
1111 if (cflag) {
1112 char *oldpath = getenv("PATH");
1113 char *newpath;
1114 int len = sizeof(PATH_SET) + 1;
1115
1116 if (oldpath)
1117 len += strlen(oldpath);
1118
1119 newpath = malloc(len);
1120 if (!newpath)
1121 fatal_error(ctx, "Couldn't malloc() newpath");
1122 strcpy(newpath, PATH_SET);
1123
1124 if (oldpath) {
1125 strcat(newpath, ":");
1126 strcat(newpath, oldpath);
1127 }
1128 putenv(newpath);
1129 }
1130 #ifdef CONFIG_JBD_DEBUG
1131 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1132 if (jbd_debug) {
1133 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1134 if (res != 1) {
1135 fprintf(stderr,
1136 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1137 jbd_debug);
1138 exit (1);
1139 }
1140 }
1141 #endif
1142 return 0;
1143
1144 sscanf_err:
1145 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1146 c, optarg);
1147 exit (1);
1148 }
1149
1150 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1151 ext2_filsys *ret_fs)
1152 {
1153 errcode_t retval;
1154
1155 *ret_fs = NULL;
1156 if (ctx->superblock && ctx->blocksize) {
1157 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1158 flags, ctx->superblock, ctx->blocksize,
1159 io_ptr, ret_fs);
1160 } else if (ctx->superblock) {
1161 int blocksize;
1162 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1163 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1164 if (*ret_fs) {
1165 ext2fs_free(*ret_fs);
1166 *ret_fs = NULL;
1167 }
1168 retval = ext2fs_open2(ctx->filesystem_name,
1169 ctx->io_options, flags,
1170 ctx->superblock, blocksize,
1171 io_ptr, ret_fs);
1172 if (!retval)
1173 break;
1174 }
1175 } else
1176 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1177 flags, 0, 0, io_ptr, ret_fs);
1178
1179 if (retval == 0) {
1180 (*ret_fs)->priv_data = ctx;
1181 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1182 "default", NULL);
1183 }
1184 return retval;
1185 }
1186
1187 static const char *my_ver_string = E2FSPROGS_VERSION;
1188 static const char *my_ver_date = E2FSPROGS_DATE;
1189
1190 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1191 {
1192 struct mmp_struct *mmp_s;
1193 unsigned int mmp_check_interval;
1194 errcode_t retval = 0;
1195 struct problem_context pctx;
1196 unsigned int wait_time = 0;
1197
1198 clear_problem_context(&pctx);
1199 if (fs->mmp_buf == NULL) {
1200 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1201 if (retval)
1202 goto check_error;
1203 }
1204
1205 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1206 if (retval)
1207 goto check_error;
1208
1209 mmp_s = fs->mmp_buf;
1210
1211 mmp_check_interval = fs->super->s_mmp_update_interval;
1212 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1213 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1214
1215 /*
1216 * If check_interval in MMP block is larger, use that instead of
1217 * check_interval from the superblock.
1218 */
1219 if (mmp_s->mmp_check_interval > mmp_check_interval)
1220 mmp_check_interval = mmp_s->mmp_check_interval;
1221
1222 wait_time = mmp_check_interval * 2 + 1;
1223
1224 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1225 retval = 0;
1226 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1227 retval = EXT2_ET_MMP_FSCK_ON;
1228 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1229 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1230
1231 if (retval)
1232 goto check_error;
1233
1234 /* Print warning if e2fsck will wait for more than 20 secs. */
1235 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1236 log_out(ctx, _("MMP interval is %u seconds and total wait "
1237 "time is %u seconds. Please wait...\n"),
1238 mmp_check_interval, wait_time * 2);
1239 }
1240
1241 return 0;
1242
1243 check_error:
1244
1245 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1246 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1247 fs->super->s_mmp_block = 0;
1248 ext2fs_mark_super_dirty(fs);
1249 retval = 0;
1250 }
1251 } else if (retval == EXT2_ET_MMP_FAILED) {
1252 com_err(ctx->program_name, retval, "%s",
1253 _("while checking MMP block"));
1254 dump_mmp_msg(fs->mmp_buf, NULL);
1255 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1256 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1257 com_err(ctx->program_name, retval, "%s",
1258 _("while checking MMP block"));
1259 dump_mmp_msg(fs->mmp_buf,
1260 _("If you are sure the filesystem is not "
1261 "in use on any node, run:\n"
1262 "'tune2fs -f -E clear_mmp %s'\n"),
1263 ctx->device_name);
1264 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1265 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1266 ext2fs_mmp_clear(fs);
1267 retval = 0;
1268 }
1269 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1270 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1271 ext2fs_mmp_clear(fs);
1272 retval = 0;
1273 }
1274 } else
1275 com_err(ctx->program_name, retval, "%s",
1276 _("while reading MMP block"));
1277 return retval;
1278 }
1279
1280 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1281 {
1282 errcode_t retval = ENOMEM;
1283 char *tdb_dir = NULL, *tdb_file = NULL;
1284 char *dev_name, *tmp_name;
1285 int free_tdb_dir = 0;
1286
1287 /* (re)open a specific undo file */
1288 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1289 retval = set_undo_io_backing_manager(*io_ptr);
1290 if (retval)
1291 goto err;
1292 *io_ptr = undo_io_manager;
1293 retval = set_undo_io_backup_file(ctx->undo_file);
1294 if (retval)
1295 goto err;
1296 printf(_("Overwriting existing filesystem; this can be undone "
1297 "using the command:\n"
1298 " e2undo %s %s\n\n"),
1299 ctx->undo_file, ctx->filesystem_name);
1300 return retval;
1301 }
1302
1303 /*
1304 * Configuration via a conf file would be
1305 * nice
1306 */
1307 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1308 if (!tdb_dir) {
1309 profile_get_string(ctx->profile, "defaults",
1310 "undo_dir", 0, "/var/lib/e2fsprogs",
1311 &tdb_dir);
1312 free_tdb_dir = 1;
1313 }
1314
1315 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1316 access(tdb_dir, W_OK)) {
1317 if (free_tdb_dir)
1318 free(tdb_dir);
1319 return 0;
1320 }
1321
1322 tmp_name = strdup(ctx->filesystem_name);
1323 if (!tmp_name)
1324 goto errout;
1325 dev_name = basename(tmp_name);
1326 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1327 if (!tdb_file) {
1328 free(tmp_name);
1329 goto errout;
1330 }
1331 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1332 free(tmp_name);
1333
1334 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1335 retval = errno;
1336 com_err(ctx->program_name, retval,
1337 _("while trying to delete %s"), tdb_file);
1338 goto errout;
1339 }
1340
1341 retval = set_undo_io_backing_manager(*io_ptr);
1342 if (retval)
1343 goto errout;
1344 *io_ptr = undo_io_manager;
1345 retval = set_undo_io_backup_file(tdb_file);
1346 if (retval)
1347 goto errout;
1348 printf(_("Overwriting existing filesystem; this can be undone "
1349 "using the command:\n"
1350 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1351
1352 if (free_tdb_dir)
1353 free(tdb_dir);
1354 free(tdb_file);
1355 return 0;
1356
1357 errout:
1358 if (free_tdb_dir)
1359 free(tdb_dir);
1360 free(tdb_file);
1361 err:
1362 com_err(ctx->program_name, retval, "%s",
1363 _("while trying to setup undo file\n"));
1364 return retval;
1365 }
1366
1367 int main (int argc, char *argv[])
1368 {
1369 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1370 int exit_value = FSCK_OK;
1371 ext2_filsys fs = 0;
1372 io_manager io_ptr;
1373 struct ext2_super_block *sb;
1374 const char *lib_ver_date;
1375 int my_ver, lib_ver;
1376 e2fsck_t ctx;
1377 blk64_t orig_superblock = ~(blk64_t)0;
1378 struct problem_context pctx;
1379 int flags, run_result, was_changed;
1380 int journal_size;
1381 int sysval, sys_page_size = 4096;
1382 int old_bitmaps;
1383 __u32 features[3];
1384 char *cp;
1385 enum quota_type qtype;
1386
1387 clear_problem_context(&pctx);
1388 sigcatcher_setup();
1389 #ifdef MTRACE
1390 mtrace();
1391 #endif
1392 #ifdef MCHECK
1393 mcheck(0);
1394 #endif
1395 #ifdef ENABLE_NLS
1396 setlocale(LC_MESSAGES, "");
1397 setlocale(LC_CTYPE, "");
1398 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1399 textdomain(NLS_CAT_NAME);
1400 set_com_err_gettext(gettext);
1401 #endif
1402 my_ver = ext2fs_parse_version_string(my_ver_string);
1403 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1404 if (my_ver > lib_ver) {
1405 fprintf( stderr, "%s",
1406 _("Error: ext2fs library version out of date!\n"));
1407 show_version_only++;
1408 }
1409
1410 retval = PRS(argc, argv, &ctx);
1411 if (retval) {
1412 com_err("e2fsck", retval, "%s",
1413 _("while trying to initialize program"));
1414 exit(FSCK_ERROR);
1415 }
1416 reserve_stdio_fds();
1417
1418 set_up_logging(ctx);
1419 if (ctx->logf) {
1420 int i;
1421 fputs("E2fsck run: ", ctx->logf);
1422 for (i = 0; i < argc; i++) {
1423 if (i)
1424 fputc(' ', ctx->logf);
1425 fputs(argv[i], ctx->logf);
1426 }
1427 fputc('\n', ctx->logf);
1428 }
1429
1430 init_resource_track(&ctx->global_rtrack, NULL);
1431 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1432 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1433 my_ver_date);
1434
1435 if (show_version_only) {
1436 log_err(ctx, _("\tUsing %s, %s\n"),
1437 error_message(EXT2_ET_BASE), lib_ver_date);
1438 exit(FSCK_OK);
1439 }
1440
1441 check_mount(ctx);
1442
1443 if (!(ctx->options & E2F_OPT_PREEN) &&
1444 !(ctx->options & E2F_OPT_NO) &&
1445 !(ctx->options & E2F_OPT_YES)) {
1446 if (!ctx->interactive)
1447 fatal_error(ctx,
1448 _("need terminal for interactive repairs"));
1449 }
1450 ctx->superblock = ctx->use_superblock;
1451
1452 flags = EXT2_FLAG_SKIP_MMP;
1453 restart:
1454 #ifdef CONFIG_TESTIO_DEBUG
1455 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1456 io_ptr = test_io_manager;
1457 test_io_backing_manager = unix_io_manager;
1458 } else
1459 #endif
1460 io_ptr = unix_io_manager;
1461 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1462 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1463 &old_bitmaps);
1464 if (!old_bitmaps)
1465 flags |= EXT2_FLAG_64BITS;
1466 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1467 flags |= EXT2_FLAG_RW;
1468 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1469 ctx->mount_flags & EXT2_MF_READONLY))
1470 flags |= EXT2_FLAG_EXCLUSIVE;
1471 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1472 (ctx->options & E2F_OPT_FORCE))
1473 flags &= ~EXT2_FLAG_EXCLUSIVE;
1474 }
1475
1476 if (ctx->undo_file) {
1477 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1478 if (retval)
1479 exit(FSCK_ERROR);
1480 }
1481
1482 ctx->openfs_flags = flags;
1483 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1484
1485 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1486 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1487 ((retval == EXT2_ET_BAD_MAGIC) ||
1488 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1489 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1490 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1491 if (retval) {
1492 pctx.errcode = retval;
1493 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1494 }
1495 if (retval2) {
1496 pctx.errcode = retval2;
1497 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1498 }
1499 pctx.errcode = 0;
1500 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1501 retval = retval2;
1502 goto failure;
1503 }
1504 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1505 ext2fs_free(fs);
1506 fs = NULL;
1507 }
1508 if (!fs || (fs->group_desc_count > 1)) {
1509 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1510 ctx->program_name,
1511 retval ? _("Superblock invalid,") :
1512 _("Group descriptors look bad..."));
1513 orig_superblock = ctx->superblock;
1514 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1515 if (fs)
1516 ext2fs_close_free(&fs);
1517 orig_retval = retval;
1518 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1519 if ((orig_retval == 0) && retval != 0) {
1520 if (fs)
1521 ext2fs_close_free(&fs);
1522 log_out(ctx, _("%s: %s while using the "
1523 "backup blocks"),
1524 ctx->program_name,
1525 error_message(retval));
1526 log_out(ctx, _("%s: going back to original "
1527 "superblock\n"),
1528 ctx->program_name);
1529 ctx->superblock = orig_superblock;
1530 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1531 }
1532 }
1533 }
1534 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1535 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1536 fs && fs->super) {
1537 sb = fs->super;
1538 features[0] = (sb->s_feature_compat &
1539 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1540 features[1] = (sb->s_feature_incompat &
1541 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1542 features[2] = (sb->s_feature_ro_compat &
1543 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1544 if (features[0] || features[1] || features[2])
1545 goto print_unsupp_features;
1546 }
1547 failure:
1548 if (retval) {
1549 if (orig_retval)
1550 retval = orig_retval;
1551 com_err(ctx->program_name, retval, _("while trying to open %s"),
1552 ctx->filesystem_name);
1553 if (retval == EXT2_ET_REV_TOO_HIGH) {
1554 log_out(ctx, "%s",
1555 _("The filesystem revision is apparently "
1556 "too high for this version of e2fsck.\n"
1557 "(Or the filesystem superblock "
1558 "is corrupt)\n\n"));
1559 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1560 } else if (retval == EXT2_ET_SHORT_READ)
1561 log_out(ctx, "%s",
1562 _("Could this be a zero-length partition?\n"));
1563 else if ((retval == EPERM) || (retval == EACCES))
1564 log_out(ctx, _("You must have %s access to the "
1565 "filesystem or be root\n"),
1566 (ctx->options & E2F_OPT_READONLY) ?
1567 "r/o" : "r/w");
1568 else if (retval == ENXIO)
1569 log_out(ctx, "%s",
1570 _("Possibly non-existent or swap device?\n"));
1571 else if (retval == EBUSY)
1572 log_out(ctx, "%s", _("Filesystem mounted or opened "
1573 "exclusively by another program?\n"));
1574 else if (retval == ENOENT)
1575 log_out(ctx, "%s",
1576 _("Possibly non-existent device?\n"));
1577 #ifdef EROFS
1578 else if (retval == EROFS)
1579 log_out(ctx, "%s", _("Disk write-protected; use the "
1580 "-n option to do a read-only\n"
1581 "check of the device.\n"));
1582 #endif
1583 else {
1584 /*
1585 * Let's try once more will less consistency checking
1586 * so that we are able to recover from more errors
1587 * (e.g. some tool messing up some value in the sb).
1588 */
1589 if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) &&
1590 !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) {
1591 if (fs)
1592 ext2fs_close_free(&fs);
1593 log_out(ctx, _("%s: Trying to load superblock "
1594 "despite errors...\n"),
1595 ctx->program_name);
1596 flags |= EXT2_FLAG_IGNORE_SB_ERRORS;
1597 /*
1598 * If we tried backup sb, revert to the
1599 * original one now.
1600 */
1601 if (orig_superblock != ~(blk64_t)0)
1602 ctx->superblock = orig_superblock;
1603 goto restart;
1604 }
1605 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1606 if (retval == EXT2_ET_BAD_MAGIC)
1607 check_plausibility(ctx->filesystem_name,
1608 CHECK_FS_EXIST, NULL);
1609 }
1610 fatal_error(ctx, 0);
1611 }
1612 /*
1613 * We only update the master superblock because (a) paranoia;
1614 * we don't want to corrupt the backup superblocks, and (b) we
1615 * don't need to update the mount count and last checked
1616 * fields in the backup superblock (the kernel doesn't update
1617 * the backup superblocks anyway). With newer versions of the
1618 * library this flag is set by ext2fs_open2(), but we set this
1619 * here just to be sure. (No, we don't support e2fsck running
1620 * with some other libext2fs than the one that it was shipped
1621 * with, but just in case....)
1622 */
1623 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1624
1625 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1626 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1627 int need_restart = 0;
1628
1629 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1630 blocksize,
1631 &ctx->num_blocks);
1632 /*
1633 * The floppy driver refuses to allow anyone else to
1634 * open the device if has been opened with O_EXCL;
1635 * this is unlike other block device drivers in Linux.
1636 * To handle this, we close the filesystem and then
1637 * reopen the filesystem after we get the device size.
1638 */
1639 if (pctx.errcode == EBUSY) {
1640 ext2fs_close_free(&fs);
1641 need_restart++;
1642 pctx.errcode =
1643 ext2fs_get_device_size2(ctx->filesystem_name,
1644 blocksize,
1645 &ctx->num_blocks);
1646 }
1647 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1648 ctx->num_blocks = 0;
1649 else if (pctx.errcode) {
1650 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1651 ctx->flags |= E2F_FLAG_ABORT;
1652 fatal_error(ctx, 0);
1653 }
1654 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1655 if (need_restart)
1656 goto restart;
1657 }
1658
1659 ctx->fs = fs;
1660 fs->now = ctx->now;
1661 sb = fs->super;
1662
1663 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1664 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1665 _("while trying to open %s"),
1666 ctx->filesystem_name);
1667 get_newer:
1668 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1669 }
1670
1671 /*
1672 * Set the device name, which is used whenever we print error
1673 * or informational messages to the user.
1674 */
1675 if (ctx->device_name == 0 &&
1676 (sb->s_volume_name[0] != 0)) {
1677 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1678 sizeof(sb->s_volume_name));
1679 }
1680 if (ctx->device_name == 0)
1681 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1682 for (cp = ctx->device_name; *cp; cp++)
1683 if (isspace(*cp) || *cp == ':')
1684 *cp = '_';
1685
1686 ehandler_init(fs->io);
1687
1688 if (ext2fs_has_feature_mmp(fs->super) &&
1689 (flags & EXT2_FLAG_SKIP_MMP)) {
1690 if (e2fsck_check_mmp(fs, ctx))
1691 fatal_error(ctx, 0);
1692
1693 /*
1694 * Restart in order to reopen fs but this time start mmp.
1695 */
1696 ext2fs_close_free(&ctx->fs);
1697 flags &= ~EXT2_FLAG_SKIP_MMP;
1698 goto restart;
1699 }
1700
1701 if (ctx->logf)
1702 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1703 e2p_uuid2str(sb->s_uuid));
1704
1705 /*
1706 * Make sure the ext3 superblock fields are consistent.
1707 */
1708 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1709 retval = e2fsck_check_ext3_journal(ctx);
1710 if (retval) {
1711 com_err(ctx->program_name, retval,
1712 _("while checking journal for %s"),
1713 ctx->device_name);
1714 fatal_error(ctx,
1715 _("Cannot proceed with file system check"));
1716 }
1717 }
1718
1719 /*
1720 * Check to see if we need to do ext3-style recovery. If so,
1721 * do it, and then restart the fsck.
1722 */
1723 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1724 if (ctx->options & E2F_OPT_READONLY) {
1725 log_out(ctx, "%s",
1726 _("Warning: skipping journal recovery because "
1727 "doing a read-only filesystem check.\n"));
1728 io_channel_flush(ctx->fs->io);
1729 } else {
1730 if (ctx->flags & E2F_FLAG_RESTARTED) {
1731 /*
1732 * Whoops, we attempted to run the
1733 * journal twice. This should never
1734 * happen, unless the hardware or
1735 * device driver is being bogus.
1736 */
1737 com_err(ctx->program_name, 0,
1738 _("unable to set superblock flags "
1739 "on %s\n"), ctx->device_name);
1740 fatal_error(ctx, 0);
1741 }
1742 retval = e2fsck_run_ext3_journal(ctx);
1743 if (retval == EFSBADCRC) {
1744 log_out(ctx, _("Journal checksum error "
1745 "found in %s\n"),
1746 ctx->device_name);
1747 } else if (retval == EFSCORRUPTED) {
1748 log_out(ctx, _("Journal corrupted in %s\n"),
1749 ctx->device_name);
1750 } else if (retval) {
1751 com_err(ctx->program_name, retval,
1752 _("while recovering journal of %s"),
1753 ctx->device_name);
1754 }
1755 ext2fs_close_free(&ctx->fs);
1756 ctx->flags |= E2F_FLAG_RESTARTED;
1757 goto restart;
1758 }
1759 }
1760
1761 /*
1762 * Check for compatibility with the feature sets. We need to
1763 * be more stringent than ext2fs_open().
1764 */
1765 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1766 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1767 features[2] = (sb->s_feature_ro_compat &
1768 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1769 print_unsupp_features:
1770 if (features[0] || features[1] || features[2]) {
1771 int i, j;
1772 __u32 *mask = features, m;
1773
1774 log_err(ctx, _("%s has unsupported feature(s):"),
1775 ctx->filesystem_name);
1776
1777 for (i=0; i <3; i++,mask++) {
1778 for (j=0,m=1; j < 32; j++, m<<=1) {
1779 if (*mask & m)
1780 log_err(ctx, " %s",
1781 e2p_feature2string(i, m));
1782 }
1783 }
1784 log_err(ctx, "\n");
1785 goto get_newer;
1786 }
1787
1788 if (ext2fs_has_feature_fname_encoding(sb)) {
1789 fs->encoding = nls_load_table(sb->s_encoding);
1790 if (!fs->encoding) {
1791 log_err(ctx, _("%s has unsupported encoding: %0x\n"),
1792 ctx->filesystem_name, sb->s_encoding);
1793 goto get_newer;
1794 }
1795 }
1796
1797 /*
1798 * If the user specified a specific superblock, presumably the
1799 * master superblock has been trashed. So we mark the
1800 * superblock as dirty, so it can be written out.
1801 */
1802 if (ctx->superblock &&
1803 !(ctx->options & E2F_OPT_READONLY))
1804 ext2fs_mark_super_dirty(fs);
1805
1806 /*
1807 * Calculate the number of filesystem blocks per pagesize. If
1808 * fs->blocksize > page_size, set the number of blocks per
1809 * pagesize to 1 to avoid division by zero errors.
1810 */
1811 #ifdef _SC_PAGESIZE
1812 sysval = sysconf(_SC_PAGESIZE);
1813 if (sysval > 0)
1814 sys_page_size = sysval;
1815 #endif /* _SC_PAGESIZE */
1816 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1817 if (ctx->blocks_per_page == 0)
1818 ctx->blocks_per_page = 1;
1819
1820 if (ctx->superblock)
1821 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1822 ext2fs_mark_valid(fs);
1823 check_super_block(ctx);
1824 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1825 fatal_error(ctx, 0);
1826 check_if_skip(ctx);
1827 check_resize_inode(ctx);
1828 if (bad_blocks_file)
1829 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1830 else if (cflag)
1831 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1832 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1833 fatal_error(ctx, 0);
1834
1835 /*
1836 * Mark the system as valid, 'til proven otherwise
1837 */
1838 ext2fs_mark_valid(fs);
1839
1840 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1841 if (retval) {
1842 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1843 ctx->program_name, error_message(retval));
1844 preenhalt(ctx);
1845 log_out(ctx, "%s", _("This doesn't bode well, "
1846 "but we'll try to go on...\n"));
1847 }
1848
1849 /*
1850 * Save the journal size in megabytes.
1851 * Try and use the journal size from the backup else let e2fsck
1852 * find the default journal size.
1853 */
1854 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1855 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1856 (sb->s_jnl_blocks[16] >> 20);
1857 else
1858 journal_size = -1;
1859
1860 if (ext2fs_has_feature_quota(sb)) {
1861 /* Quotas were enabled. Do quota accounting during fsck. */
1862 clear_problem_context(&pctx);
1863 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1864 if (pctx.errcode) {
1865 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1866 fatal_error(ctx, 0);
1867 }
1868 }
1869
1870 run_result = e2fsck_run(ctx);
1871 e2fsck_clear_progbar(ctx);
1872
1873 if (!ctx->invalid_bitmaps &&
1874 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1875 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1876 if (journal_size < 1024)
1877 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1878 if (journal_size < 0) {
1879 ext2fs_clear_feature_journal(fs->super);
1880 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1881 log_out(ctx, "%s: Couldn't determine "
1882 "journal size\n", ctx->program_name);
1883 goto no_journal;
1884 }
1885 log_out(ctx, _("Creating journal (%d blocks): "),
1886 journal_size);
1887 fflush(stdout);
1888 retval = ext2fs_add_journal_inode(fs,
1889 journal_size, 0);
1890 if (retval) {
1891 log_out(ctx, "%s: while trying to create "
1892 "journal\n", error_message(retval));
1893 goto no_journal;
1894 }
1895 log_out(ctx, "%s", _(" Done.\n"));
1896 log_out(ctx, "%s",
1897 _("\n*** journal has been regenerated ***\n"));
1898 }
1899 }
1900 no_journal:
1901
1902 if (run_result & E2F_FLAG_ABORT) {
1903 fatal_error(ctx, _("aborted"));
1904 } else if (run_result & E2F_FLAG_CANCEL) {
1905 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1906 ctx->device_name : ctx->filesystem_name);
1907 exit_value |= FSCK_CANCELED;
1908 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1909 int needs_writeout;
1910
1911 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1912 if (*quota_sb_inump(sb, qtype) == 0)
1913 continue;
1914 needs_writeout = 0;
1915 pctx.num = qtype;
1916 retval = quota_compare_and_update(ctx->qctx, qtype,
1917 &needs_writeout);
1918 if ((retval || needs_writeout) &&
1919 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1920 pctx.errcode = quota_write_inode(ctx->qctx,
1921 1 << qtype);
1922 if (pctx.errcode)
1923 (void) fix_problem(ctx,
1924 PR_6_WRITE_QUOTAS, &pctx);
1925 }
1926 }
1927 quota_release_context(&ctx->qctx);
1928 }
1929
1930 if (run_result == E2F_FLAG_RESTART) {
1931 log_out(ctx, "%s",
1932 _("Restarting e2fsck from the beginning...\n"));
1933 retval = e2fsck_reset_context(ctx);
1934 if (retval) {
1935 com_err(ctx->program_name, retval, "%s",
1936 _("while resetting context"));
1937 fatal_error(ctx, 0);
1938 }
1939 ext2fs_close_free(&ctx->fs);
1940 goto restart;
1941 }
1942
1943 #ifdef MTRACE
1944 mtrace_print("Cleanup");
1945 #endif
1946 was_changed = ext2fs_test_changed(fs);
1947 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1948 !(ctx->options & E2F_OPT_READONLY)) {
1949 if (ext2fs_test_valid(fs)) {
1950 if (!(sb->s_state & EXT2_VALID_FS))
1951 exit_value |= FSCK_NONDESTRUCT;
1952 sb->s_state = EXT2_VALID_FS;
1953 if (check_backup_super_block(ctx))
1954 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1955 } else
1956 sb->s_state &= ~EXT2_VALID_FS;
1957 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1958 sb->s_lastcheck = ctx->now;
1959 sb->s_mnt_count = 0;
1960 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1961 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1962 if (pctx.errcode)
1963 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1964 ext2fs_mark_super_dirty(fs);
1965 }
1966
1967 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
1968 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) &&
1969 (ctx->options & E2F_OPT_NO))
1970 /* Don't try to write or flush I/O, we just wanted to know whether or
1971 * not there were enough free blocks to undo deduplication.
1972 */
1973 goto skip_write;
1974
1975 if (!(ctx->options & E2F_OPT_READONLY)) {
1976 e2fsck_write_bitmaps(ctx);
1977 if (fs->flags & EXT2_FLAG_DIRTY) {
1978 pctx.errcode = ext2fs_flush(ctx->fs);
1979 if (pctx.errcode)
1980 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1981 }
1982 pctx.errcode = io_channel_flush(ctx->fs->io);
1983 if (pctx.errcode)
1984 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1985 }
1986
1987 if (was_changed) {
1988 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
1989
1990 if (fs_fixed)
1991 exit_value |= FSCK_NONDESTRUCT;
1992 if (!(ctx->options & E2F_OPT_PREEN)) {
1993 #if 0 /* Do this later; it breaks too many tests' golden outputs */
1994 log_out(ctx, fs_fixed ?
1995 _("\n%s: ***** FILE SYSTEM ERRORS "
1996 "CORRECTED *****\n") :
1997 _("%s: File system was modified.\n"),
1998 ctx->device_name);
1999 #else
2000 log_out(ctx,
2001 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
2002 ctx->device_name);
2003 #endif
2004 }
2005 if (ctx->mount_flags & EXT2_MF_ISROOT) {
2006 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
2007 ctx->device_name);
2008 exit_value |= FSCK_REBOOT;
2009 }
2010 }
2011
2012 skip_write:
2013 if (!ext2fs_test_valid(fs) ||
2014 ((exit_value & FSCK_CANCELED) &&
2015 (sb->s_state & EXT2_ERROR_FS))) {
2016 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
2017 "errors **********\n\n"), ctx->device_name);
2018 exit_value |= FSCK_UNCORRECTED;
2019 exit_value &= ~FSCK_NONDESTRUCT;
2020 }
2021 if (exit_value & FSCK_CANCELED) {
2022 int allow_cancellation;
2023
2024 profile_get_boolean(ctx->profile, "options",
2025 "allow_cancellation", 0, 0,
2026 &allow_cancellation);
2027 exit_value &= ~FSCK_NONDESTRUCT;
2028 if (allow_cancellation && ext2fs_test_valid(fs) &&
2029 (sb->s_state & EXT2_VALID_FS) &&
2030 !(sb->s_state & EXT2_ERROR_FS))
2031 exit_value = 0;
2032 } else
2033 show_stats(ctx);
2034
2035 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
2036
2037 ext2fs_close_free(&ctx->fs);
2038 free(ctx->journal_name);
2039
2040 if (ctx->logf)
2041 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
2042 e2fsck_free_context(ctx);
2043 remove_error_table(&et_ext2_error_table);
2044 remove_error_table(&et_prof_error_table);
2045 return exit_value;
2046 }
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