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e2fsck: fix potential Floating Point Exception in show_stats()
[thirdparty/e2fsprogs.git] / e2fsck / unix.c
1 /*
2 * unix.c - The unix-specific code for e2fsck
3 *
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 */
11
12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
13
14 #include "config.h"
15 #include <stdio.h>
16 #ifdef HAVE_STDLIB_H
17 #include <stdlib.h>
18 #endif
19 #include <string.h>
20 #include <fcntl.h>
21 #include <ctype.h>
22 #include <time.h>
23 #ifdef HAVE_SIGNAL_H
24 #include <signal.h>
25 #endif
26 #ifdef HAVE_GETOPT_H
27 #include <getopt.h>
28 #else
29 extern char *optarg;
30 extern int optind;
31 #endif
32 #include <unistd.h>
33 #ifdef HAVE_ERRNO_H
34 #include <errno.h>
35 #endif
36 #ifdef HAVE_SYS_IOCTL_H
37 #include <sys/ioctl.h>
38 #endif
39 #ifdef HAVE_MALLOC_H
40 #include <malloc.h>
41 #endif
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
44 #endif
45 #ifdef HAVE_DIRENT_H
46 #include <dirent.h>
47 #endif
48 #include <libgen.h>
49
50 #include "e2p/e2p.h"
51 #include "et/com_err.h"
52 #include "e2p/e2p.h"
53 #include "support/plausible.h"
54 #include "e2fsck.h"
55 #include "problem.h"
56 #include "jfs_user.h"
57 #include "../version.h"
58
59 /* Command line options */
60 static int cflag; /* check disk */
61 static int show_version_only;
62 static int verbose;
63
64 static int replace_bad_blocks;
65 static int keep_bad_blocks;
66 static char *bad_blocks_file;
67
68 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
69
70 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
71 int journal_enable_debug = -1;
72 #endif
73
74 static void usage(e2fsck_t ctx)
75 {
76 fprintf(stderr,
77 _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n"
78 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
79 "\t\t[-E extended-options] [-z undo_file] device\n"),
80 ctx->program_name);
81
82 fprintf(stderr, "%s", _("\nEmergency help:\n"
83 " -p Automatic repair (no questions)\n"
84 " -n Make no changes to the filesystem\n"
85 " -y Assume \"yes\" to all questions\n"
86 " -c Check for bad blocks and add them to the badblock list\n"
87 " -f Force checking even if filesystem is marked clean\n"));
88 fprintf(stderr, "%s", _(""
89 " -v Be verbose\n"
90 " -b superblock Use alternative superblock\n"
91 " -B blocksize Force blocksize when looking for superblock\n"
92 " -j external_journal Set location of the external journal\n"
93 " -l bad_blocks_file Add to badblocks list\n"
94 " -L bad_blocks_file Set badblocks list\n"
95 " -z undo_file Create an undo file\n"
96 ));
97
98 exit(FSCK_USAGE);
99 }
100
101 static void show_stats(e2fsck_t ctx)
102 {
103 ext2_filsys fs = ctx->fs;
104 ext2_ino_t inodes, inodes_used;
105 blk64_t blocks, blocks_used;
106 unsigned int dir_links;
107 unsigned int num_files, num_links;
108 __u32 *mask, m;
109 int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0;
110 int i, j, printed = 0;
111
112 dir_links = 2 * ctx->fs_directory_count - 1;
113 num_files = ctx->fs_total_count - dir_links;
114 num_links = ctx->fs_links_count - dir_links;
115 inodes = fs->super->s_inodes_count;
116 inodes_used = (fs->super->s_inodes_count -
117 fs->super->s_free_inodes_count);
118 blocks = ext2fs_blocks_count(fs->super);
119 blocks_used = (ext2fs_blocks_count(fs->super) -
120 ext2fs_free_blocks_count(fs->super));
121
122 if (inodes_used > 0) {
123 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
124 frag_percent_file = (frag_percent_file + 5) / 10;
125
126 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
127 frag_percent_dir = (frag_percent_dir + 5) / 10;
128
129 frag_percent_total = ((10000 * (ctx->fs_fragmented +
130 ctx->fs_fragmented_dir))
131 / inodes_used);
132 frag_percent_total = (frag_percent_total + 5) / 10;
133 }
134
135 if (!verbose) {
136 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
137 "%llu/%llu blocks\n"),
138 ctx->device_name, inodes_used, inodes,
139 frag_percent_total / 10, frag_percent_total % 10,
140 blocks_used, blocks);
141 return;
142 }
143 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
144 &i);
145 if (verbose && i) {
146 log_out(ctx, "\nFilesystem features:");
147 mask = &ctx->fs->super->s_feature_compat;
148 for (i = 0; i < 3; i++, mask++) {
149 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
150 if (*mask & m) {
151 log_out(ctx, " %s",
152 e2p_feature2string(i, m));
153 printed++;
154 }
155 }
156 }
157 if (printed == 0)
158 log_out(ctx, " (none)");
159 log_out(ctx, "\n");
160 }
161
162 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
163 "\n%12u inodes used (%2.2f%%, out of %u)\n",
164 inodes_used), inodes_used,
165 100.0 * inodes_used / inodes, inodes);
166 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
167 "%12u non-contiguous files (%0d.%d%%)\n",
168 ctx->fs_fragmented),
169 ctx->fs_fragmented, frag_percent_file / 10,
170 frag_percent_file % 10);
171 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
172 "%12u non-contiguous directories (%0d.%d%%)\n",
173 ctx->fs_fragmented_dir),
174 ctx->fs_fragmented_dir, frag_percent_dir / 10,
175 frag_percent_dir % 10);
176 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
177 "%u/%u/%u\n"),
178 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
179
180 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
181 if (ctx->extent_depth_count[j])
182 break;
183 if (++j) {
184 log_out(ctx, "%s", _(" Extent depth histogram: "));
185 for (i=0; i < j; i++) {
186 if (i)
187 fputc('/', stdout);
188 log_out(ctx, "%u", ctx->extent_depth_count[i]);
189 }
190 log_out(ctx, "\n");
191 }
192
193 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
194 "%12llu blocks used (%2.2f%%, out of %llu)\n",
195 blocks_used),
196 blocks_used, 100.0 * blocks_used / blocks, blocks);
197 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
198 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
199 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
200 ctx->large_files), ctx->large_files);
201 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
202 ctx->fs_regular_count), ctx->fs_regular_count);
203 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
204 ctx->fs_directory_count), ctx->fs_directory_count);
205 log_out(ctx, P_("%12u character device file\n",
206 "%12u character device files\n", ctx->fs_chardev_count),
207 ctx->fs_chardev_count);
208 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
209 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
210 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
211 ctx->fs_fifo_count);
212 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
213 ctx->fs_links_count - dir_links);
214 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
215 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
216 log_out(ctx, P_(" (%u fast symbolic link)\n",
217 " (%u fast symbolic links)\n",
218 ctx->fs_fast_symlinks_count),
219 ctx->fs_fast_symlinks_count);
220 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
221 ctx->fs_sockets_count),
222 ctx->fs_sockets_count);
223 log_out(ctx, "------------\n");
224 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
225 num_files);
226 }
227
228 static void check_mount(e2fsck_t ctx)
229 {
230 errcode_t retval;
231 int cont;
232
233 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
234 &ctx->mount_flags);
235 if (retval) {
236 com_err("ext2fs_check_if_mount", retval,
237 _("while determining whether %s is mounted."),
238 ctx->filesystem_name);
239 return;
240 }
241
242 /*
243 * If the filesystem isn't mounted, or it's the root
244 * filesystem and it's mounted read-only, and we're not doing
245 * a read/write check, then everything's fine.
246 */
247 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
248 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
249 (ctx->mount_flags & EXT2_MF_READONLY) &&
250 !(ctx->options & E2F_OPT_WRITECHECK)))
251 return;
252
253 if (((ctx->options & E2F_OPT_READONLY) ||
254 ((ctx->options & E2F_OPT_FORCE) &&
255 (ctx->mount_flags & EXT2_MF_READONLY))) &&
256 !(ctx->options & E2F_OPT_WRITECHECK)) {
257 if (ctx->mount_flags & EXT2_MF_MOUNTED)
258 log_out(ctx, _("Warning! %s is mounted.\n"),
259 ctx->filesystem_name);
260 else
261 log_out(ctx, _("Warning! %s is in use.\n"),
262 ctx->filesystem_name);
263 return;
264 }
265
266 if (ctx->mount_flags & EXT2_MF_MOUNTED)
267 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
268 else
269 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
270 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
271 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
272 puts("\007\007\007\007");
273 log_out(ctx, "%s", _("\n\nWARNING!!! "
274 "The filesystem is mounted. "
275 "If you continue you ***WILL***\n"
276 "cause ***SEVERE*** filesystem damage.\n\n"));
277 puts("\007\007\007");
278 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
279 if (!cont) {
280 printf("%s", _("check aborted.\n"));
281 exit (0);
282 }
283 return;
284 }
285
286 static int is_on_batt(void)
287 {
288 FILE *f;
289 DIR *d;
290 char tmp[80], tmp2[80], fname[80];
291 unsigned int acflag;
292 struct dirent* de;
293
294 f = fopen("/sys/class/power_supply/AC/online", "r");
295 if (f) {
296 if (fscanf(f, "%u\n", &acflag) == 1) {
297 fclose(f);
298 return (!acflag);
299 }
300 fclose(f);
301 }
302 f = fopen("/proc/apm", "r");
303 if (f) {
304 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
305 acflag = 1;
306 fclose(f);
307 return (acflag != 1);
308 }
309 d = opendir("/proc/acpi/ac_adapter");
310 if (d) {
311 while ((de=readdir(d)) != NULL) {
312 if (!strncmp(".", de->d_name, 1))
313 continue;
314 snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
315 de->d_name);
316 f = fopen(fname, "r");
317 if (!f)
318 continue;
319 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
320 tmp[0] = 0;
321 fclose(f);
322 if (strncmp(tmp, "off-line", 8) == 0) {
323 closedir(d);
324 return 1;
325 }
326 }
327 closedir(d);
328 }
329 return 0;
330 }
331
332 /*
333 * This routine checks to see if a filesystem can be skipped; if so,
334 * it will exit with E2FSCK_OK. Under some conditions it will print a
335 * message explaining why a check is being forced.
336 */
337 static void check_if_skip(e2fsck_t ctx)
338 {
339 ext2_filsys fs = ctx->fs;
340 struct problem_context pctx;
341 const char *reason = NULL;
342 unsigned int reason_arg = 0;
343 long next_check;
344 int batt = is_on_batt();
345 int defer_check_on_battery;
346 int broken_system_clock;
347 time_t lastcheck;
348
349 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
350 return;
351
352 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
353 0, 0, &broken_system_clock);
354 if (ctx->flags & E2F_FLAG_TIME_INSANE)
355 broken_system_clock = 1;
356 profile_get_boolean(ctx->profile, "options",
357 "defer_check_on_battery", 0, 1,
358 &defer_check_on_battery);
359 if (!defer_check_on_battery)
360 batt = 0;
361
362 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
363 return;
364
365 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
366 goto skip;
367
368 lastcheck = fs->super->s_lastcheck;
369 if (lastcheck > ctx->now)
370 lastcheck -= ctx->time_fudge;
371 if ((fs->super->s_state & EXT2_ERROR_FS) ||
372 !ext2fs_test_valid(fs))
373 reason = _(" contains a file system with errors");
374 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
375 reason = _(" was not cleanly unmounted");
376 else if (check_backup_super_block(ctx))
377 reason = _(" primary superblock features different from backup");
378 else if ((fs->super->s_max_mnt_count > 0) &&
379 (fs->super->s_mnt_count >=
380 (unsigned) fs->super->s_max_mnt_count)) {
381 reason = _(" has been mounted %u times without being checked");
382 reason_arg = fs->super->s_mnt_count;
383 if (batt && (fs->super->s_mnt_count <
384 (unsigned) fs->super->s_max_mnt_count*2))
385 reason = 0;
386 } else if (!broken_system_clock && fs->super->s_checkinterval &&
387 (ctx->now < lastcheck)) {
388 reason = _(" has filesystem last checked time in the future");
389 if (batt)
390 reason = 0;
391 } else if (!broken_system_clock && fs->super->s_checkinterval &&
392 ((ctx->now - lastcheck) >=
393 ((time_t) fs->super->s_checkinterval))) {
394 reason = _(" has gone %u days without being checked");
395 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
396 if (batt && ((ctx->now - fs->super->s_lastcheck) <
397 fs->super->s_checkinterval*2))
398 reason = 0;
399 }
400 if (reason) {
401 log_out(ctx, "%s", ctx->device_name);
402 log_out(ctx, reason, reason_arg);
403 log_out(ctx, "%s", _(", check forced.\n"));
404 return;
405 }
406
407 /*
408 * Update the global counts from the block group counts. This
409 * is needed since modern kernels don't update the global
410 * counts so as to avoid locking the entire file system. So
411 * if the filesystem is not unmounted cleanly, the global
412 * counts may not be accurate. Update them here if we can,
413 * for the benefit of users who might examine the file system
414 * using dumpe2fs. (This is for cosmetic reasons only.)
415 */
416 clear_problem_context(&pctx);
417 pctx.ino = fs->super->s_free_inodes_count;
418 pctx.ino2 = ctx->free_inodes;
419 if ((pctx.ino != pctx.ino2) &&
420 !(ctx->options & E2F_OPT_READONLY) &&
421 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
422 fs->super->s_free_inodes_count = ctx->free_inodes;
423 ext2fs_mark_super_dirty(fs);
424 }
425 clear_problem_context(&pctx);
426 pctx.blk = ext2fs_free_blocks_count(fs->super);
427 pctx.blk2 = ctx->free_blocks;
428 if ((pctx.blk != pctx.blk2) &&
429 !(ctx->options & E2F_OPT_READONLY) &&
430 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
431 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
432 ext2fs_mark_super_dirty(fs);
433 }
434
435 /* Print the summary message when we're skipping a full check */
436 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
437 ctx->device_name,
438 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
439 fs->super->s_inodes_count,
440 ext2fs_blocks_count(fs->super) -
441 ext2fs_free_blocks_count(fs->super),
442 ext2fs_blocks_count(fs->super));
443 next_check = 100000;
444 if (fs->super->s_max_mnt_count > 0) {
445 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
446 if (next_check <= 0)
447 next_check = 1;
448 }
449 if (!broken_system_clock && fs->super->s_checkinterval &&
450 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
451 next_check = 1;
452 if (next_check <= 5) {
453 if (next_check == 1) {
454 if (batt)
455 log_out(ctx, "%s",
456 _(" (check deferred; on battery)"));
457 else
458 log_out(ctx, "%s",
459 _(" (check after next mount)"));
460 } else
461 log_out(ctx, _(" (check in %ld mounts)"),
462 next_check);
463 }
464 log_out(ctx, "\n");
465 skip:
466 ext2fs_close_free(&ctx->fs);
467 e2fsck_free_context(ctx);
468 exit(FSCK_OK);
469 }
470
471 /*
472 * For completion notice
473 */
474 struct percent_tbl {
475 int max_pass;
476 int table[32];
477 };
478 static struct percent_tbl e2fsck_tbl = {
479 5, { 0, 70, 90, 92, 95, 100 }
480 };
481 static char bar[128], spaces[128];
482
483 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
484 int max)
485 {
486 float percent;
487
488 if (pass <= 0)
489 return 0.0;
490 if (pass > tbl->max_pass || max == 0)
491 return 100.0;
492 percent = ((float) curr) / ((float) max);
493 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
494 + tbl->table[pass-1]);
495 }
496
497 void e2fsck_clear_progbar(e2fsck_t ctx)
498 {
499 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
500 return;
501
502 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
503 ctx->stop_meta);
504 fflush(stdout);
505 ctx->flags &= ~E2F_FLAG_PROG_BAR;
506 }
507
508 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
509 unsigned int dpynum)
510 {
511 static const char spinner[] = "\\|/-";
512 int i;
513 unsigned int tick;
514 struct timeval tv;
515 int dpywidth;
516 int fixed_percent;
517
518 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
519 return 0;
520
521 /*
522 * Calculate the new progress position. If the
523 * percentage hasn't changed, then we skip out right
524 * away.
525 */
526 fixed_percent = (int) ((10 * percent) + 0.5);
527 if (ctx->progress_last_percent == fixed_percent)
528 return 0;
529 ctx->progress_last_percent = fixed_percent;
530
531 /*
532 * If we've already updated the spinner once within
533 * the last 1/8th of a second, no point doing it
534 * again.
535 */
536 gettimeofday(&tv, NULL);
537 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
538 if ((tick == ctx->progress_last_time) &&
539 (fixed_percent != 0) && (fixed_percent != 1000))
540 return 0;
541 ctx->progress_last_time = tick;
542
543 /*
544 * Advance the spinner, and note that the progress bar
545 * will be on the screen
546 */
547 ctx->progress_pos = (ctx->progress_pos+1) & 3;
548 ctx->flags |= E2F_FLAG_PROG_BAR;
549
550 dpywidth = 66 - strlen(label);
551 dpywidth = 8 * (dpywidth / 8);
552 if (dpynum)
553 dpywidth -= 8;
554
555 i = ((percent * dpywidth) + 50) / 100;
556 printf("%s%s: |%s%s", ctx->start_meta, label,
557 bar + (sizeof(bar) - (i+1)),
558 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
559 if (fixed_percent == 1000)
560 fputc('|', stdout);
561 else
562 fputc(spinner[ctx->progress_pos & 3], stdout);
563 printf(" %4.1f%% ", percent);
564 if (dpynum)
565 printf("%u\r", dpynum);
566 else
567 fputs(" \r", stdout);
568 fputs(ctx->stop_meta, stdout);
569
570 if (fixed_percent == 1000)
571 e2fsck_clear_progbar(ctx);
572 fflush(stdout);
573
574 return 0;
575 }
576
577 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
578 unsigned long cur, unsigned long max)
579 {
580 char buf[1024];
581 float percent;
582
583 if (pass == 0)
584 return 0;
585
586 if (ctx->progress_fd) {
587 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
588 pass, cur, max, ctx->device_name);
589 write_all(ctx->progress_fd, buf, strlen(buf));
590 } else {
591 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
592 e2fsck_simple_progress(ctx, ctx->device_name,
593 percent, 0);
594 }
595 return 0;
596 }
597
598 #define PATH_SET "PATH=/sbin"
599
600 /*
601 * Make sure 0,1,2 file descriptors are open, so that we don't open
602 * the filesystem using the same file descriptor as stdout or stderr.
603 */
604 static void reserve_stdio_fds(void)
605 {
606 int fd = 0;
607
608 while (fd <= 2) {
609 fd = open("/dev/null", O_RDWR);
610 if (fd < 0) {
611 fprintf(stderr, _("ERROR: Couldn't open "
612 "/dev/null (%s)\n"),
613 strerror(errno));
614 break;
615 }
616 }
617 }
618
619 #ifdef HAVE_SIGNAL_H
620 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
621 {
622 e2fsck_t ctx = e2fsck_global_ctx;
623
624 if (!ctx)
625 return;
626
627 ctx->progress = e2fsck_update_progress;
628 }
629
630 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
631 {
632 e2fsck_t ctx = e2fsck_global_ctx;
633
634 if (!ctx)
635 return;
636
637 e2fsck_clear_progbar(ctx);
638 ctx->progress = 0;
639 }
640
641 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
642 {
643 e2fsck_t ctx = e2fsck_global_ctx;
644
645 if (!ctx)
646 exit(FSCK_CANCELED);
647
648 ctx->flags |= E2F_FLAG_CANCEL;
649 }
650 #endif
651
652 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
653 {
654 char *buf, *token, *next, *p, *arg;
655 int ea_ver;
656 int extended_usage = 0;
657 unsigned long long reada_kb;
658
659 buf = string_copy(ctx, opts, 0);
660 for (token = buf; token && *token; token = next) {
661 p = strchr(token, ',');
662 next = 0;
663 if (p) {
664 *p = 0;
665 next = p+1;
666 }
667 arg = strchr(token, '=');
668 if (arg) {
669 *arg = 0;
670 arg++;
671 }
672 if (strcmp(token, "ea_ver") == 0) {
673 if (!arg) {
674 extended_usage++;
675 continue;
676 }
677 ea_ver = strtoul(arg, &p, 0);
678 if (*p ||
679 ((ea_ver != 1) && (ea_ver != 2))) {
680 fprintf(stderr, "%s",
681 _("Invalid EA version.\n"));
682 extended_usage++;
683 continue;
684 }
685 ctx->ext_attr_ver = ea_ver;
686 } else if (strcmp(token, "readahead_kb") == 0) {
687 if (!arg) {
688 extended_usage++;
689 continue;
690 }
691 reada_kb = strtoull(arg, &p, 0);
692 if (*p) {
693 fprintf(stderr, "%s",
694 _("Invalid readahead buffer size.\n"));
695 extended_usage++;
696 continue;
697 }
698 ctx->readahead_kb = reada_kb;
699 } else if (strcmp(token, "fragcheck") == 0) {
700 ctx->options |= E2F_OPT_FRAGCHECK;
701 continue;
702 } else if (strcmp(token, "journal_only") == 0) {
703 if (arg) {
704 extended_usage++;
705 continue;
706 }
707 ctx->options |= E2F_OPT_JOURNAL_ONLY;
708 } else if (strcmp(token, "discard") == 0) {
709 ctx->options |= E2F_OPT_DISCARD;
710 continue;
711 } else if (strcmp(token, "nodiscard") == 0) {
712 ctx->options &= ~E2F_OPT_DISCARD;
713 continue;
714 } else if (strcmp(token, "optimize_extents") == 0) {
715 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
716 continue;
717 } else if (strcmp(token, "no_optimize_extents") == 0) {
718 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
719 continue;
720 } else if (strcmp(token, "inode_count_fullmap") == 0) {
721 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
722 continue;
723 } else if (strcmp(token, "no_inode_count_fullmap") == 0) {
724 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
725 continue;
726 } else if (strcmp(token, "log_filename") == 0) {
727 if (!arg)
728 extended_usage++;
729 else
730 ctx->log_fn = string_copy(ctx, arg, 0);
731 continue;
732 } else if (strcmp(token, "bmap2extent") == 0) {
733 ctx->options |= E2F_OPT_CONVERT_BMAP;
734 continue;
735 } else if (strcmp(token, "fixes_only") == 0) {
736 ctx->options |= E2F_OPT_FIXES_ONLY;
737 continue;
738 } else {
739 fprintf(stderr, _("Unknown extended option: %s\n"),
740 token);
741 extended_usage++;
742 }
743 }
744 free(buf);
745
746 if (extended_usage) {
747 fputs(_("\nExtended options are separated by commas, "
748 "and may take an argument which\n"
749 "is set off by an equals ('=') sign. "
750 "Valid extended options are:\n\n"), stderr);
751 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
752 fputs("\tfragcheck\n", stderr);
753 fputs("\tjournal_only\n", stderr);
754 fputs("\tdiscard\n", stderr);
755 fputs("\tnodiscard\n", stderr);
756 fputs("\toptimize_extents\n", stderr);
757 fputs("\tno_optimize_extents\n", stderr);
758 fputs("\tinode_count_fullmap\n", stderr);
759 fputs("\tno_inode_count_fullmap\n", stderr);
760 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
761 fputs("\tbmap2extent\n", stderr);
762 fputc('\n', stderr);
763 exit(1);
764 }
765 }
766
767 static void syntax_err_report(const char *filename, long err, int line_num)
768 {
769 fprintf(stderr,
770 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
771 filename, line_num, error_message(err));
772 exit(FSCK_ERROR);
773 }
774
775 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
776
777 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
778 {
779 int flush = 0;
780 int c, fd;
781 #ifdef MTRACE
782 extern void *mallwatch;
783 #endif
784 e2fsck_t ctx;
785 errcode_t retval;
786 #ifdef HAVE_SIGNAL_H
787 struct sigaction sa;
788 #endif
789 char *extended_opts = 0;
790 char *cp;
791 int res; /* result of sscanf */
792 #ifdef CONFIG_JBD_DEBUG
793 char *jbd_debug;
794 #endif
795 unsigned long long phys_mem_kb;
796
797 retval = e2fsck_allocate_context(&ctx);
798 if (retval)
799 return retval;
800
801 *ret_ctx = ctx;
802 e2fsck_global_ctx = ctx;
803
804 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
805 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
806 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
807 ctx->interactive = 1;
808 } else {
809 ctx->start_meta[0] = '\001';
810 ctx->stop_meta[0] = '\002';
811 }
812 memset(bar, '=', sizeof(bar)-1);
813 memset(spaces, ' ', sizeof(spaces)-1);
814 add_error_table(&et_ext2_error_table);
815 add_error_table(&et_prof_error_table);
816 blkid_get_cache(&ctx->blkid, NULL);
817
818 if (argc && *argv)
819 ctx->program_name = *argv;
820 else
821 ctx->program_name = "e2fsck";
822
823 phys_mem_kb = get_memory_size() / 1024;
824 ctx->readahead_kb = ~0ULL;
825 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
826 switch (c) {
827 case 'C':
828 ctx->progress = e2fsck_update_progress;
829 res = sscanf(optarg, "%d", &ctx->progress_fd);
830 if (res != 1)
831 goto sscanf_err;
832
833 if (ctx->progress_fd < 0) {
834 ctx->progress = 0;
835 ctx->progress_fd = ctx->progress_fd * -1;
836 }
837 if (!ctx->progress_fd)
838 break;
839 /* Validate the file descriptor to avoid disasters */
840 fd = dup(ctx->progress_fd);
841 if (fd < 0) {
842 fprintf(stderr,
843 _("Error validating file descriptor %d: %s\n"),
844 ctx->progress_fd,
845 error_message(errno));
846 fatal_error(ctx,
847 _("Invalid completion information file descriptor"));
848 } else
849 close(fd);
850 break;
851 case 'D':
852 ctx->options |= E2F_OPT_COMPRESS_DIRS;
853 break;
854 case 'E':
855 extended_opts = optarg;
856 break;
857 case 'p':
858 case 'a':
859 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
860 conflict_opt:
861 fatal_error(ctx,
862 _("Only one of the options -p/-a, -n or -y may be specified."));
863 }
864 ctx->options |= E2F_OPT_PREEN;
865 break;
866 case 'n':
867 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
868 goto conflict_opt;
869 ctx->options |= E2F_OPT_NO;
870 break;
871 case 'y':
872 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
873 goto conflict_opt;
874 ctx->options |= E2F_OPT_YES;
875 break;
876 case 't':
877 #ifdef RESOURCE_TRACK
878 if (ctx->options & E2F_OPT_TIME)
879 ctx->options |= E2F_OPT_TIME2;
880 else
881 ctx->options |= E2F_OPT_TIME;
882 #else
883 fprintf(stderr, _("The -t option is not "
884 "supported on this version of e2fsck.\n"));
885 #endif
886 break;
887 case 'c':
888 if (cflag++)
889 ctx->options |= E2F_OPT_WRITECHECK;
890 ctx->options |= E2F_OPT_CHECKBLOCKS;
891 break;
892 case 'r':
893 /* What we do by default, anyway! */
894 break;
895 case 'b':
896 res = sscanf(optarg, "%llu", &ctx->use_superblock);
897 if (res != 1)
898 goto sscanf_err;
899 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
900 break;
901 case 'B':
902 ctx->blocksize = atoi(optarg);
903 break;
904 case 'I':
905 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
906 if (res != 1)
907 goto sscanf_err;
908 break;
909 case 'j':
910 ctx->journal_name = blkid_get_devname(ctx->blkid,
911 optarg, NULL);
912 if (!ctx->journal_name) {
913 com_err(ctx->program_name, 0,
914 _("Unable to resolve '%s'"),
915 optarg);
916 fatal_error(ctx, 0);
917 }
918 break;
919 case 'P':
920 res = sscanf(optarg, "%d", &ctx->process_inode_size);
921 if (res != 1)
922 goto sscanf_err;
923 break;
924 case 'L':
925 replace_bad_blocks++;
926 case 'l':
927 if (bad_blocks_file)
928 free(bad_blocks_file);
929 bad_blocks_file = string_copy(ctx, optarg, 0);
930 break;
931 case 'd':
932 ctx->options |= E2F_OPT_DEBUG;
933 break;
934 case 'f':
935 ctx->options |= E2F_OPT_FORCE;
936 break;
937 case 'F':
938 flush = 1;
939 break;
940 case 'v':
941 verbose = 1;
942 break;
943 case 'V':
944 show_version_only = 1;
945 break;
946 #ifdef MTRACE
947 case 'M':
948 mallwatch = (void *) strtol(optarg, NULL, 0);
949 break;
950 #endif
951 case 'N':
952 ctx->device_name = string_copy(ctx, optarg, 0);
953 break;
954 case 'k':
955 keep_bad_blocks++;
956 break;
957 case 'z':
958 ctx->undo_file = optarg;
959 break;
960 default:
961 usage(ctx);
962 }
963 if (show_version_only)
964 return 0;
965 if (optind != argc - 1)
966 usage(ctx);
967 if ((ctx->options & E2F_OPT_NO) &&
968 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
969 com_err(ctx->program_name, 0, "%s",
970 _("The -n and -D options are incompatible."));
971 fatal_error(ctx, 0);
972 }
973 if ((ctx->options & E2F_OPT_NO) && cflag) {
974 com_err(ctx->program_name, 0, "%s",
975 _("The -n and -c options are incompatible."));
976 fatal_error(ctx, 0);
977 }
978 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
979 com_err(ctx->program_name, 0, "%s",
980 _("The -n and -l/-L options are incompatible."));
981 fatal_error(ctx, 0);
982 }
983 if (ctx->options & E2F_OPT_NO)
984 ctx->options |= E2F_OPT_READONLY;
985
986 ctx->io_options = strchr(argv[optind], '?');
987 if (ctx->io_options)
988 *ctx->io_options++ = 0;
989 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
990 if (!ctx->filesystem_name) {
991 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
992 argv[optind]);
993 fatal_error(ctx, 0);
994 }
995 if (extended_opts)
996 parse_extended_opts(ctx, extended_opts);
997
998 /* Complain about mutually exclusive rebuilding activities */
999 if (getenv("E2FSCK_FIXES_ONLY"))
1000 ctx->options |= E2F_OPT_FIXES_ONLY;
1001 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1002 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1003 com_err(ctx->program_name, 0, "%s",
1004 _("The -D and -E fixes_only options are incompatible."));
1005 fatal_error(ctx, 0);
1006 }
1007 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1008 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1009 com_err(ctx->program_name, 0, "%s",
1010 _("The -E bmap2extent and fixes_only options are incompatible."));
1011 fatal_error(ctx, 0);
1012 }
1013
1014 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1015 config_fn[0] = cp;
1016 profile_set_syntax_err_cb(syntax_err_report);
1017 profile_init(config_fn, &ctx->profile);
1018
1019 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1020 &c);
1021 if (c)
1022 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1023 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1024 &c);
1025 if (c)
1026 verbose = 1;
1027
1028 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1029 0, 0, &c);
1030 if (c)
1031 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1032
1033 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1034 0, 0, &c);
1035 if (c)
1036 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1037
1038 if (ctx->readahead_kb == ~0ULL) {
1039 profile_get_integer(ctx->profile, "options",
1040 "readahead_mem_pct", 0, -1, &c);
1041 if (c >= 0 && c <= 100)
1042 ctx->readahead_kb = phys_mem_kb * c / 100;
1043 profile_get_integer(ctx->profile, "options",
1044 "readahead_kb", 0, -1, &c);
1045 if (c >= 0)
1046 ctx->readahead_kb = c;
1047 if (ctx->readahead_kb != ~0ULL &&
1048 ctx->readahead_kb > phys_mem_kb)
1049 ctx->readahead_kb = phys_mem_kb;
1050 }
1051
1052 /* Turn off discard in read-only mode */
1053 if ((ctx->options & E2F_OPT_NO) &&
1054 (ctx->options & E2F_OPT_DISCARD))
1055 ctx->options &= ~E2F_OPT_DISCARD;
1056
1057 if (flush) {
1058 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1059 if (fd < 0) {
1060 com_err("open", errno,
1061 _("while opening %s for flushing"),
1062 ctx->filesystem_name);
1063 fatal_error(ctx, 0);
1064 }
1065 if ((retval = ext2fs_sync_device(fd, 1))) {
1066 com_err("ext2fs_sync_device", retval,
1067 _("while trying to flush %s"),
1068 ctx->filesystem_name);
1069 fatal_error(ctx, 0);
1070 }
1071 close(fd);
1072 }
1073 if (cflag && bad_blocks_file) {
1074 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1075 "be both used at the same time.\n"));
1076 exit(FSCK_USAGE);
1077 }
1078 #ifdef HAVE_SIGNAL_H
1079 /*
1080 * Set up signal action
1081 */
1082 memset(&sa, 0, sizeof(struct sigaction));
1083 sa.sa_handler = signal_cancel;
1084 sigaction(SIGINT, &sa, 0);
1085 sigaction(SIGTERM, &sa, 0);
1086 #ifdef SA_RESTART
1087 sa.sa_flags = SA_RESTART;
1088 #endif
1089 sa.sa_handler = signal_progress_on;
1090 sigaction(SIGUSR1, &sa, 0);
1091 sa.sa_handler = signal_progress_off;
1092 sigaction(SIGUSR2, &sa, 0);
1093 #endif
1094
1095 /* Update our PATH to include /sbin if we need to run badblocks */
1096 if (cflag) {
1097 char *oldpath = getenv("PATH");
1098 char *newpath;
1099 int len = sizeof(PATH_SET) + 1;
1100
1101 if (oldpath)
1102 len += strlen(oldpath);
1103
1104 newpath = malloc(len);
1105 if (!newpath)
1106 fatal_error(ctx, "Couldn't malloc() newpath");
1107 strcpy(newpath, PATH_SET);
1108
1109 if (oldpath) {
1110 strcat(newpath, ":");
1111 strcat(newpath, oldpath);
1112 }
1113 putenv(newpath);
1114 }
1115 #ifdef CONFIG_JBD_DEBUG
1116 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1117 if (jbd_debug) {
1118 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1119 if (res != 1) {
1120 fprintf(stderr,
1121 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1122 jbd_debug);
1123 exit (1);
1124 }
1125 }
1126 #endif
1127 return 0;
1128
1129 sscanf_err:
1130 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1131 c, optarg);
1132 exit (1);
1133 }
1134
1135 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1136 ext2_filsys *ret_fs)
1137 {
1138 errcode_t retval;
1139
1140 *ret_fs = NULL;
1141 if (ctx->superblock && ctx->blocksize) {
1142 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1143 flags, ctx->superblock, ctx->blocksize,
1144 io_ptr, ret_fs);
1145 } else if (ctx->superblock) {
1146 int blocksize;
1147 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1148 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1149 if (*ret_fs) {
1150 ext2fs_free(*ret_fs);
1151 *ret_fs = NULL;
1152 }
1153 retval = ext2fs_open2(ctx->filesystem_name,
1154 ctx->io_options, flags,
1155 ctx->superblock, blocksize,
1156 io_ptr, ret_fs);
1157 if (!retval)
1158 break;
1159 }
1160 } else
1161 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1162 flags, 0, 0, io_ptr, ret_fs);
1163
1164 if (retval == 0) {
1165 (*ret_fs)->priv_data = ctx;
1166 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1167 "default", NULL);
1168 }
1169 return retval;
1170 }
1171
1172 static const char *my_ver_string = E2FSPROGS_VERSION;
1173 static const char *my_ver_date = E2FSPROGS_DATE;
1174
1175 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1176 {
1177 struct mmp_struct *mmp_s;
1178 unsigned int mmp_check_interval;
1179 errcode_t retval = 0;
1180 struct problem_context pctx;
1181 unsigned int wait_time = 0;
1182
1183 clear_problem_context(&pctx);
1184 if (fs->mmp_buf == NULL) {
1185 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1186 if (retval)
1187 goto check_error;
1188 }
1189
1190 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1191 if (retval)
1192 goto check_error;
1193
1194 mmp_s = fs->mmp_buf;
1195
1196 mmp_check_interval = fs->super->s_mmp_update_interval;
1197 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1198 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1199
1200 /*
1201 * If check_interval in MMP block is larger, use that instead of
1202 * check_interval from the superblock.
1203 */
1204 if (mmp_s->mmp_check_interval > mmp_check_interval)
1205 mmp_check_interval = mmp_s->mmp_check_interval;
1206
1207 wait_time = mmp_check_interval * 2 + 1;
1208
1209 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1210 retval = 0;
1211 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1212 retval = EXT2_ET_MMP_FSCK_ON;
1213 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1214 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1215
1216 if (retval)
1217 goto check_error;
1218
1219 /* Print warning if e2fsck will wait for more than 20 secs. */
1220 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1221 log_out(ctx, _("MMP interval is %u seconds and total wait "
1222 "time is %u seconds. Please wait...\n"),
1223 mmp_check_interval, wait_time * 2);
1224 }
1225
1226 return 0;
1227
1228 check_error:
1229
1230 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1231 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1232 fs->super->s_mmp_block = 0;
1233 ext2fs_mark_super_dirty(fs);
1234 retval = 0;
1235 }
1236 } else if (retval == EXT2_ET_MMP_FAILED) {
1237 com_err(ctx->program_name, retval, "%s",
1238 _("while checking MMP block"));
1239 dump_mmp_msg(fs->mmp_buf, NULL);
1240 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1241 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1242 com_err(ctx->program_name, retval, "%s",
1243 _("while checking MMP block"));
1244 dump_mmp_msg(fs->mmp_buf,
1245 _("If you are sure the filesystem is not "
1246 "in use on any node, run:\n"
1247 "'tune2fs -f -E clear_mmp {device}'\n"));
1248 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1249 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1250 ext2fs_mmp_clear(fs);
1251 retval = 0;
1252 }
1253 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1254 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1255 ext2fs_mmp_clear(fs);
1256 retval = 0;
1257 }
1258 } else
1259 com_err(ctx->program_name, retval, "%s",
1260 _("while reading MMP block"));
1261 return retval;
1262 }
1263
1264 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1265 {
1266 errcode_t retval = ENOMEM;
1267 char *tdb_dir = NULL, *tdb_file = NULL;
1268 char *dev_name, *tmp_name;
1269 int free_tdb_dir = 0;
1270
1271 /* (re)open a specific undo file */
1272 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1273 retval = set_undo_io_backing_manager(*io_ptr);
1274 if (retval)
1275 goto err;
1276 *io_ptr = undo_io_manager;
1277 retval = set_undo_io_backup_file(ctx->undo_file);
1278 if (retval)
1279 goto err;
1280 printf(_("Overwriting existing filesystem; this can be undone "
1281 "using the command:\n"
1282 " e2undo %s %s\n\n"),
1283 ctx->undo_file, ctx->filesystem_name);
1284 return retval;
1285 }
1286
1287 /*
1288 * Configuration via a conf file would be
1289 * nice
1290 */
1291 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1292 if (!tdb_dir) {
1293 profile_get_string(ctx->profile, "defaults",
1294 "undo_dir", 0, "/var/lib/e2fsprogs",
1295 &tdb_dir);
1296 free_tdb_dir = 1;
1297 }
1298
1299 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1300 access(tdb_dir, W_OK)) {
1301 if (free_tdb_dir)
1302 free(tdb_dir);
1303 return 0;
1304 }
1305
1306 tmp_name = strdup(ctx->filesystem_name);
1307 if (!tmp_name)
1308 goto errout;
1309 dev_name = basename(tmp_name);
1310 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1311 if (!tdb_file) {
1312 free(tmp_name);
1313 goto errout;
1314 }
1315 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1316 free(tmp_name);
1317
1318 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1319 retval = errno;
1320 com_err(ctx->program_name, retval,
1321 _("while trying to delete %s"), tdb_file);
1322 goto errout;
1323 }
1324
1325 retval = set_undo_io_backing_manager(*io_ptr);
1326 if (retval)
1327 goto errout;
1328 *io_ptr = undo_io_manager;
1329 retval = set_undo_io_backup_file(tdb_file);
1330 if (retval)
1331 goto errout;
1332 printf(_("Overwriting existing filesystem; this can be undone "
1333 "using the command:\n"
1334 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1335
1336 if (free_tdb_dir)
1337 free(tdb_dir);
1338 free(tdb_file);
1339 return 0;
1340
1341 errout:
1342 if (free_tdb_dir)
1343 free(tdb_dir);
1344 free(tdb_file);
1345 err:
1346 com_err(ctx->program_name, retval, "%s",
1347 _("while trying to setup undo file\n"));
1348 return retval;
1349 }
1350
1351 int main (int argc, char *argv[])
1352 {
1353 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1354 int exit_value = FSCK_OK;
1355 ext2_filsys fs = 0;
1356 io_manager io_ptr;
1357 struct ext2_super_block *sb;
1358 const char *lib_ver_date;
1359 int my_ver, lib_ver;
1360 e2fsck_t ctx;
1361 blk64_t orig_superblock;
1362 struct problem_context pctx;
1363 int flags, run_result, was_changed;
1364 int journal_size;
1365 int sysval, sys_page_size = 4096;
1366 int old_bitmaps;
1367 __u32 features[3];
1368 char *cp;
1369 enum quota_type qtype;
1370
1371 clear_problem_context(&pctx);
1372 sigcatcher_setup();
1373 #ifdef MTRACE
1374 mtrace();
1375 #endif
1376 #ifdef MCHECK
1377 mcheck(0);
1378 #endif
1379 #ifdef ENABLE_NLS
1380 setlocale(LC_MESSAGES, "");
1381 setlocale(LC_CTYPE, "");
1382 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1383 textdomain(NLS_CAT_NAME);
1384 set_com_err_gettext(gettext);
1385 #endif
1386 my_ver = ext2fs_parse_version_string(my_ver_string);
1387 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1388 if (my_ver > lib_ver) {
1389 fprintf( stderr, "%s",
1390 _("Error: ext2fs library version out of date!\n"));
1391 show_version_only++;
1392 }
1393
1394 retval = PRS(argc, argv, &ctx);
1395 if (retval) {
1396 com_err("e2fsck", retval, "%s",
1397 _("while trying to initialize program"));
1398 exit(FSCK_ERROR);
1399 }
1400 reserve_stdio_fds();
1401
1402 set_up_logging(ctx);
1403 if (ctx->logf) {
1404 int i;
1405 fputs("E2fsck run: ", ctx->logf);
1406 for (i = 0; i < argc; i++) {
1407 if (i)
1408 fputc(' ', ctx->logf);
1409 fputs(argv[i], ctx->logf);
1410 }
1411 fputc('\n', ctx->logf);
1412 }
1413
1414 init_resource_track(&ctx->global_rtrack, NULL);
1415 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1416 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1417 my_ver_date);
1418
1419 if (show_version_only) {
1420 log_err(ctx, _("\tUsing %s, %s\n"),
1421 error_message(EXT2_ET_BASE), lib_ver_date);
1422 exit(FSCK_OK);
1423 }
1424
1425 check_mount(ctx);
1426
1427 if (!(ctx->options & E2F_OPT_PREEN) &&
1428 !(ctx->options & E2F_OPT_NO) &&
1429 !(ctx->options & E2F_OPT_YES)) {
1430 if (!ctx->interactive)
1431 fatal_error(ctx,
1432 _("need terminal for interactive repairs"));
1433 }
1434 ctx->superblock = ctx->use_superblock;
1435
1436 flags = EXT2_FLAG_SKIP_MMP;
1437 restart:
1438 #ifdef CONFIG_TESTIO_DEBUG
1439 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1440 io_ptr = test_io_manager;
1441 test_io_backing_manager = unix_io_manager;
1442 } else
1443 #endif
1444 io_ptr = unix_io_manager;
1445 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1446 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1447 &old_bitmaps);
1448 if (!old_bitmaps)
1449 flags |= EXT2_FLAG_64BITS;
1450 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1451 flags |= EXT2_FLAG_RW;
1452 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1453 ctx->mount_flags & EXT2_MF_READONLY))
1454 flags |= EXT2_FLAG_EXCLUSIVE;
1455 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1456 (ctx->options & E2F_OPT_FORCE))
1457 flags &= ~EXT2_FLAG_EXCLUSIVE;
1458 }
1459
1460 if (ctx->undo_file) {
1461 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1462 if (retval)
1463 exit(FSCK_ERROR);
1464 }
1465
1466 ctx->openfs_flags = flags;
1467 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1468
1469 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1470 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1471 ((retval == EXT2_ET_BAD_MAGIC) ||
1472 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1473 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1474 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1475 if (retval) {
1476 pctx.errcode = retval;
1477 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1478 }
1479 if (retval2) {
1480 pctx.errcode = retval2;
1481 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1482 }
1483 pctx.errcode = 0;
1484 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1485 retval = retval2;
1486 goto failure;
1487 }
1488 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1489 ext2fs_free(fs);
1490 fs = NULL;
1491 }
1492 if (!fs || (fs->group_desc_count > 1)) {
1493 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1494 ctx->program_name,
1495 retval ? _("Superblock invalid,") :
1496 _("Group descriptors look bad..."));
1497 orig_superblock = ctx->superblock;
1498 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1499 if (fs)
1500 ext2fs_close_free(&fs);
1501 orig_retval = retval;
1502 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1503 if ((orig_retval == 0) && retval != 0) {
1504 if (fs)
1505 ext2fs_close_free(&fs);
1506 log_out(ctx, _("%s: %s while using the "
1507 "backup blocks"),
1508 ctx->program_name,
1509 error_message(retval));
1510 log_out(ctx, _("%s: going back to original "
1511 "superblock\n"),
1512 ctx->program_name);
1513 ctx->superblock = orig_superblock;
1514 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1515 }
1516 }
1517 }
1518 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1519 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1520 fs && fs->super) {
1521 sb = fs->super;
1522 features[0] = (sb->s_feature_compat &
1523 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1524 features[1] = (sb->s_feature_incompat &
1525 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1526 features[2] = (sb->s_feature_ro_compat &
1527 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1528 if (features[0] || features[1] || features[2])
1529 goto print_unsupp_features;
1530 }
1531 failure:
1532 if (retval) {
1533 if (orig_retval)
1534 retval = orig_retval;
1535 com_err(ctx->program_name, retval, _("while trying to open %s"),
1536 ctx->filesystem_name);
1537 if (retval == EXT2_ET_REV_TOO_HIGH) {
1538 log_out(ctx, "%s",
1539 _("The filesystem revision is apparently "
1540 "too high for this version of e2fsck.\n"
1541 "(Or the filesystem superblock "
1542 "is corrupt)\n\n"));
1543 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1544 } else if (retval == EXT2_ET_SHORT_READ)
1545 log_out(ctx, "%s",
1546 _("Could this be a zero-length partition?\n"));
1547 else if ((retval == EPERM) || (retval == EACCES))
1548 log_out(ctx, _("You must have %s access to the "
1549 "filesystem or be root\n"),
1550 (ctx->options & E2F_OPT_READONLY) ?
1551 "r/o" : "r/w");
1552 else if (retval == ENXIO)
1553 log_out(ctx, "%s",
1554 _("Possibly non-existent or swap device?\n"));
1555 else if (retval == EBUSY)
1556 log_out(ctx, "%s", _("Filesystem mounted or opened "
1557 "exclusively by another program?\n"));
1558 else if (retval == ENOENT)
1559 log_out(ctx, "%s",
1560 _("Possibly non-existent device?\n"));
1561 #ifdef EROFS
1562 else if (retval == EROFS)
1563 log_out(ctx, "%s", _("Disk write-protected; use the "
1564 "-n option to do a read-only\n"
1565 "check of the device.\n"));
1566 #endif
1567 else {
1568 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1569 if (retval == EXT2_ET_BAD_MAGIC)
1570 check_plausibility(ctx->filesystem_name,
1571 CHECK_FS_EXIST, NULL);
1572 }
1573 fatal_error(ctx, 0);
1574 }
1575 /*
1576 * We only update the master superblock because (a) paranoia;
1577 * we don't want to corrupt the backup superblocks, and (b) we
1578 * don't need to update the mount count and last checked
1579 * fields in the backup superblock (the kernel doesn't update
1580 * the backup superblocks anyway). With newer versions of the
1581 * library this flag is set by ext2fs_open2(), but we set this
1582 * here just to be sure. (No, we don't support e2fsck running
1583 * with some other libext2fs than the one that it was shipped
1584 * with, but just in case....)
1585 */
1586 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1587
1588 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1589 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1590 int need_restart = 0;
1591
1592 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1593 blocksize,
1594 &ctx->num_blocks);
1595 /*
1596 * The floppy driver refuses to allow anyone else to
1597 * open the device if has been opened with O_EXCL;
1598 * this is unlike other block device drivers in Linux.
1599 * To handle this, we close the filesystem and then
1600 * reopen the filesystem after we get the device size.
1601 */
1602 if (pctx.errcode == EBUSY) {
1603 ext2fs_close_free(&fs);
1604 need_restart++;
1605 pctx.errcode =
1606 ext2fs_get_device_size2(ctx->filesystem_name,
1607 blocksize,
1608 &ctx->num_blocks);
1609 }
1610 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1611 ctx->num_blocks = 0;
1612 else if (pctx.errcode) {
1613 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1614 ctx->flags |= E2F_FLAG_ABORT;
1615 fatal_error(ctx, 0);
1616 }
1617 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1618 if (need_restart)
1619 goto restart;
1620 }
1621
1622 ctx->fs = fs;
1623 fs->now = ctx->now;
1624 sb = fs->super;
1625
1626 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1627 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1628 _("while trying to open %s"),
1629 ctx->filesystem_name);
1630 get_newer:
1631 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1632 }
1633
1634 /*
1635 * Set the device name, which is used whenever we print error
1636 * or informational messages to the user.
1637 */
1638 if (ctx->device_name == 0 &&
1639 (sb->s_volume_name[0] != 0)) {
1640 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1641 sizeof(sb->s_volume_name));
1642 }
1643 if (ctx->device_name == 0)
1644 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1645 for (cp = ctx->device_name; *cp; cp++)
1646 if (isspace(*cp) || *cp == ':')
1647 *cp = '_';
1648
1649 ehandler_init(fs->io);
1650
1651 if (ext2fs_has_feature_mmp(fs->super) &&
1652 (flags & EXT2_FLAG_SKIP_MMP)) {
1653 if (e2fsck_check_mmp(fs, ctx))
1654 fatal_error(ctx, 0);
1655
1656 /*
1657 * Restart in order to reopen fs but this time start mmp.
1658 */
1659 ext2fs_close_free(&ctx->fs);
1660 flags &= ~EXT2_FLAG_SKIP_MMP;
1661 goto restart;
1662 }
1663
1664 if (ctx->logf)
1665 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1666 e2p_uuid2str(sb->s_uuid));
1667
1668 /*
1669 * Make sure the ext3 superblock fields are consistent.
1670 */
1671 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1672 retval = e2fsck_check_ext3_journal(ctx);
1673 if (retval) {
1674 com_err(ctx->program_name, retval,
1675 _("while checking journal for %s"),
1676 ctx->device_name);
1677 fatal_error(ctx,
1678 _("Cannot proceed with file system check"));
1679 }
1680 }
1681
1682 /*
1683 * Check to see if we need to do ext3-style recovery. If so,
1684 * do it, and then restart the fsck.
1685 */
1686 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1687 if (ctx->options & E2F_OPT_READONLY) {
1688 log_out(ctx, "%s",
1689 _("Warning: skipping journal recovery because "
1690 "doing a read-only filesystem check.\n"));
1691 io_channel_flush(ctx->fs->io);
1692 } else {
1693 if (ctx->flags & E2F_FLAG_RESTARTED) {
1694 /*
1695 * Whoops, we attempted to run the
1696 * journal twice. This should never
1697 * happen, unless the hardware or
1698 * device driver is being bogus.
1699 */
1700 com_err(ctx->program_name, 0,
1701 _("unable to set superblock flags "
1702 "on %s\n"), ctx->device_name);
1703 fatal_error(ctx, 0);
1704 }
1705 retval = e2fsck_run_ext3_journal(ctx);
1706 if (retval == EFSBADCRC) {
1707 log_out(ctx, _("Journal checksum error "
1708 "found in %s\n"),
1709 ctx->device_name);
1710 } else if (retval == EFSCORRUPTED) {
1711 log_out(ctx, _("Journal corrupted in %s\n"),
1712 ctx->device_name);
1713 } else if (retval) {
1714 com_err(ctx->program_name, retval,
1715 _("while recovering journal of %s"),
1716 ctx->device_name);
1717 }
1718 ext2fs_close_free(&ctx->fs);
1719 ctx->flags |= E2F_FLAG_RESTARTED;
1720 goto restart;
1721 }
1722 }
1723
1724 /*
1725 * Check for compatibility with the feature sets. We need to
1726 * be more stringent than ext2fs_open().
1727 */
1728 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1729 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1730 features[2] = (sb->s_feature_ro_compat &
1731 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1732 print_unsupp_features:
1733 if (features[0] || features[1] || features[2]) {
1734 int i, j;
1735 __u32 *mask = features, m;
1736
1737 log_err(ctx, _("%s has unsupported feature(s):"),
1738 ctx->filesystem_name);
1739
1740 for (i=0; i <3; i++,mask++) {
1741 for (j=0,m=1; j < 32; j++, m<<=1) {
1742 if (*mask & m)
1743 log_err(ctx, " %s",
1744 e2p_feature2string(i, m));
1745 }
1746 }
1747 log_err(ctx, "\n");
1748 goto get_newer;
1749 }
1750
1751 /*
1752 * If the user specified a specific superblock, presumably the
1753 * master superblock has been trashed. So we mark the
1754 * superblock as dirty, so it can be written out.
1755 */
1756 if (ctx->superblock &&
1757 !(ctx->options & E2F_OPT_READONLY))
1758 ext2fs_mark_super_dirty(fs);
1759
1760 /*
1761 * Calculate the number of filesystem blocks per pagesize. If
1762 * fs->blocksize > page_size, set the number of blocks per
1763 * pagesize to 1 to avoid division by zero errors.
1764 */
1765 #ifdef _SC_PAGESIZE
1766 sysval = sysconf(_SC_PAGESIZE);
1767 if (sysval > 0)
1768 sys_page_size = sysval;
1769 #endif /* _SC_PAGESIZE */
1770 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1771 if (ctx->blocks_per_page == 0)
1772 ctx->blocks_per_page = 1;
1773
1774 if (ctx->superblock)
1775 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1776 ext2fs_mark_valid(fs);
1777 check_super_block(ctx);
1778 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1779 fatal_error(ctx, 0);
1780 check_if_skip(ctx);
1781 check_resize_inode(ctx);
1782 if (bad_blocks_file)
1783 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1784 else if (cflag)
1785 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1786 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1787 fatal_error(ctx, 0);
1788
1789 /*
1790 * Mark the system as valid, 'til proven otherwise
1791 */
1792 ext2fs_mark_valid(fs);
1793
1794 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1795 if (retval) {
1796 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1797 ctx->program_name, error_message(retval));
1798 preenhalt(ctx);
1799 log_out(ctx, "%s", _("This doesn't bode well, "
1800 "but we'll try to go on...\n"));
1801 }
1802
1803 /*
1804 * Save the journal size in megabytes.
1805 * Try and use the journal size from the backup else let e2fsck
1806 * find the default journal size.
1807 */
1808 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1809 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1810 (sb->s_jnl_blocks[16] >> 20);
1811 else
1812 journal_size = -1;
1813
1814 if (ext2fs_has_feature_quota(sb)) {
1815 /* Quotas were enabled. Do quota accounting during fsck. */
1816 clear_problem_context(&pctx);
1817 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1818 if (pctx.errcode) {
1819 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1820 fatal_error(ctx, 0);
1821 }
1822 }
1823
1824 run_result = e2fsck_run(ctx);
1825 e2fsck_clear_progbar(ctx);
1826
1827 if (!ctx->invalid_bitmaps &&
1828 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1829 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1830 if (journal_size < 1024)
1831 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1832 if (journal_size < 0) {
1833 ext2fs_clear_feature_journal(fs->super);
1834 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1835 log_out(ctx, "%s: Couldn't determine "
1836 "journal size\n", ctx->program_name);
1837 goto no_journal;
1838 }
1839 log_out(ctx, _("Creating journal (%d blocks): "),
1840 journal_size);
1841 fflush(stdout);
1842 retval = ext2fs_add_journal_inode(fs,
1843 journal_size, 0);
1844 if (retval) {
1845 log_out(ctx, "%s: while trying to create "
1846 "journal\n", error_message(retval));
1847 goto no_journal;
1848 }
1849 log_out(ctx, "%s", _(" Done.\n"));
1850 log_out(ctx, "%s",
1851 _("\n*** journal has been regenerated ***\n"));
1852 }
1853 }
1854 no_journal:
1855
1856 if (run_result & E2F_FLAG_ABORT) {
1857 fatal_error(ctx, _("aborted"));
1858 } else if (run_result & E2F_FLAG_CANCEL) {
1859 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1860 ctx->device_name : ctx->filesystem_name);
1861 exit_value |= FSCK_CANCELED;
1862 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1863 int needs_writeout;
1864
1865 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1866 if (*quota_sb_inump(sb, qtype) == 0)
1867 continue;
1868 needs_writeout = 0;
1869 pctx.num = qtype;
1870 retval = quota_compare_and_update(ctx->qctx, qtype,
1871 &needs_writeout);
1872 if ((retval || needs_writeout) &&
1873 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1874 pctx.errcode = quota_write_inode(ctx->qctx,
1875 1 << qtype);
1876 if (pctx.errcode)
1877 (void) fix_problem(ctx,
1878 PR_6_WRITE_QUOTAS, &pctx);
1879 }
1880 }
1881 quota_release_context(&ctx->qctx);
1882 }
1883
1884 if (run_result == E2F_FLAG_RESTART) {
1885 log_out(ctx, "%s",
1886 _("Restarting e2fsck from the beginning...\n"));
1887 retval = e2fsck_reset_context(ctx);
1888 if (retval) {
1889 com_err(ctx->program_name, retval, "%s",
1890 _("while resetting context"));
1891 fatal_error(ctx, 0);
1892 }
1893 ext2fs_close_free(&ctx->fs);
1894 goto restart;
1895 }
1896
1897 #ifdef MTRACE
1898 mtrace_print("Cleanup");
1899 #endif
1900 was_changed = ext2fs_test_changed(fs);
1901 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1902 !(ctx->options & E2F_OPT_READONLY)) {
1903 if (ext2fs_test_valid(fs)) {
1904 if (!(sb->s_state & EXT2_VALID_FS))
1905 exit_value |= FSCK_NONDESTRUCT;
1906 sb->s_state = EXT2_VALID_FS;
1907 if (check_backup_super_block(ctx))
1908 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1909 } else
1910 sb->s_state &= ~EXT2_VALID_FS;
1911 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1912 sb->s_lastcheck = ctx->now;
1913 sb->s_mnt_count = 0;
1914 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1915 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1916 if (pctx.errcode)
1917 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1918 ext2fs_mark_super_dirty(fs);
1919 }
1920
1921 if (!(ctx->options & E2F_OPT_READONLY)) {
1922 e2fsck_write_bitmaps(ctx);
1923 if (fs->flags & EXT2_FLAG_DIRTY) {
1924 pctx.errcode = ext2fs_flush(ctx->fs);
1925 if (pctx.errcode)
1926 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1927 }
1928 pctx.errcode = io_channel_flush(ctx->fs->io);
1929 if (pctx.errcode)
1930 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1931 }
1932
1933 if (was_changed) {
1934 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
1935
1936 if (fs_fixed)
1937 exit_value |= FSCK_NONDESTRUCT;
1938 if (!(ctx->options & E2F_OPT_PREEN)) {
1939 #if 0 /* Do this later; it breaks too many tests' golden outputs */
1940 log_out(ctx, fs_fixed ?
1941 _("\n%s: ***** FILE SYSTEM ERRORS "
1942 "CORRECTED *****\n") :
1943 _("%s: File system was modified.\n"),
1944 ctx->device_name);
1945 #else
1946 log_out(ctx,
1947 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1948 ctx->device_name);
1949 #endif
1950 }
1951 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1952 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
1953 ctx->device_name);
1954 exit_value |= FSCK_REBOOT;
1955 }
1956 }
1957 if (!ext2fs_test_valid(fs) ||
1958 ((exit_value & FSCK_CANCELED) &&
1959 (sb->s_state & EXT2_ERROR_FS))) {
1960 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
1961 "errors **********\n\n"), ctx->device_name);
1962 exit_value |= FSCK_UNCORRECTED;
1963 exit_value &= ~FSCK_NONDESTRUCT;
1964 }
1965 if (exit_value & FSCK_CANCELED) {
1966 int allow_cancellation;
1967
1968 profile_get_boolean(ctx->profile, "options",
1969 "allow_cancellation", 0, 0,
1970 &allow_cancellation);
1971 exit_value &= ~FSCK_NONDESTRUCT;
1972 if (allow_cancellation && ext2fs_test_valid(fs) &&
1973 (sb->s_state & EXT2_VALID_FS) &&
1974 !(sb->s_state & EXT2_ERROR_FS))
1975 exit_value = 0;
1976 } else
1977 show_stats(ctx);
1978
1979 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
1980
1981 ext2fs_close_free(&ctx->fs);
1982 free(ctx->journal_name);
1983
1984 if (ctx->logf)
1985 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
1986 e2fsck_free_context(ctx);
1987 remove_error_table(&et_ext2_error_table);
1988 remove_error_table(&et_prof_error_table);
1989 return exit_value;
1990 }
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