1 /*
2 * unix.c - The unix-specific code for e2fsck
3 *
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 */
11
12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
13
14 #include "config.h"
15 #include <stdio.h>
16 #ifdef HAVE_STDLIB_H
17 #include <stdlib.h>
18 #endif
19 #include <string.h>
20 #include <fcntl.h>
21 #include <ctype.h>
22 #include <time.h>
23 #ifdef HAVE_SIGNAL_H
24 #include <signal.h>
25 #endif
26 #ifdef HAVE_GETOPT_H
27 #include <getopt.h>
28 #else
29 extern char *optarg;
30 extern int optind;
31 #endif
32 #include <unistd.h>
33 #ifdef HAVE_ERRNO_H
34 #include <errno.h>
35 #endif
36 #ifdef HAVE_SYS_IOCTL_H
37 #include <sys/ioctl.h>
38 #endif
39 #ifdef HAVE_MALLOC_H
40 #include <malloc.h>
41 #endif
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
44 #endif
45 #ifdef HAVE_DIRENT_H
46 #include <dirent.h>
47 #endif
48 #include <libgen.h>
49
50 #include "e2p/e2p.h"
51 #include "et/com_err.h"
52 #include "e2p/e2p.h"
53 #include "uuid/uuid.h"
54 #include "support/plausible.h"
55 #include "e2fsck.h"
56 #include "problem.h"
57 #include "jfs_user.h"
58 #include "../version.h"
59
60 /* Command line options */
61 static int cflag; /* check disk */
62 static int show_version_only;
63 static int verbose;
64
65 static int replace_bad_blocks;
66 static int keep_bad_blocks;
67 static char *bad_blocks_file;
68
69 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
70
71 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
72 int journal_enable_debug = -1;
73 #endif
74
usage(e2fsck_t ctx)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
show_stats(e2fsck_t ctx)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
check_mount(e2fsck_t ctx)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
is_on_batt(void)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 */
check_if_skip(e2fsck_t ctx)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
calc_percent(struct percent_tbl * tbl,int pass,int curr,int max)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
e2fsck_clear_progbar(e2fsck_t ctx)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
e2fsck_simple_progress(e2fsck_t ctx,const char * label,float percent,unsigned int dpynum)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
e2fsck_update_progress(e2fsck_t ctx,int pass,unsigned long cur,unsigned long max)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 */
reserve_stdio_fds(void)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
signal_progress_on(int sig EXT2FS_ATTR ((unused)))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
signal_progress_off(int sig EXT2FS_ATTR ((unused)))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
signal_cancel(int sig EXT2FS_ATTR ((unused)))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
parse_extended_opts(e2fsck_t ctx,const char * opts)660 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
661 {
662 char *buf, *token, *next, *p, *arg;
663 int ea_ver;
664 int extended_usage = 0;
665 unsigned long long reada_kb;
666
667 buf = string_copy(ctx, opts, 0);
668 for (token = buf; token && *token; token = next) {
669 p = strchr(token, ',');
670 next = 0;
671 if (p) {
672 *p = 0;
673 next = p+1;
674 }
675 arg = strchr(token, '=');
676 if (arg) {
677 *arg = 0;
678 arg++;
679 }
680 if (strcmp(token, "ea_ver") == 0) {
681 if (!arg) {
682 extended_usage++;
683 continue;
684 }
685 ea_ver = strtoul(arg, &p, 0);
686 if (*p ||
687 ((ea_ver != 1) && (ea_ver != 2))) {
688 fprintf(stderr, "%s",
689 _("Invalid EA version.\n"));
690 extended_usage++;
691 continue;
692 }
693 ctx->ext_attr_ver = ea_ver;
694 } else if (strcmp(token, "readahead_kb") == 0) {
695 if (!arg) {
696 extended_usage++;
697 continue;
698 }
699 reada_kb = strtoull(arg, &p, 0);
700 if (*p) {
701 fprintf(stderr, "%s",
702 _("Invalid readahead buffer size.\n"));
703 extended_usage++;
704 continue;
705 }
706 ctx->readahead_kb = reada_kb;
707 } else if (strcmp(token, "fragcheck") == 0) {
708 ctx->options |= E2F_OPT_FRAGCHECK;
709 continue;
710 } else if (strcmp(token, "journal_only") == 0) {
711 if (arg) {
712 extended_usage++;
713 continue;
714 }
715 ctx->options |= E2F_OPT_JOURNAL_ONLY;
716 } else if (strcmp(token, "discard") == 0) {
717 ctx->options |= E2F_OPT_DISCARD;
718 continue;
719 } else if (strcmp(token, "nodiscard") == 0) {
720 ctx->options &= ~E2F_OPT_DISCARD;
721 continue;
722 } else if (strcmp(token, "optimize_extents") == 0) {
723 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
724 continue;
725 } else if (strcmp(token, "no_optimize_extents") == 0) {
726 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
727 continue;
728 } else if (strcmp(token, "inode_count_fullmap") == 0) {
729 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
730 continue;
731 } else if (strcmp(token, "no_inode_count_fullmap") == 0) {
732 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
733 continue;
734 } else if (strcmp(token, "log_filename") == 0) {
735 if (!arg)
736 extended_usage++;
737 else
738 ctx->log_fn = string_copy(ctx, arg, 0);
739 continue;
740 } else if (strcmp(token, "problem_log") == 0) {
741 if (!arg)
742 extended_usage++;
743 else
744 ctx->problem_log_fn = string_copy(ctx, arg, 0);
745 continue;
746 } else if (strcmp(token, "bmap2extent") == 0) {
747 ctx->options |= E2F_OPT_CONVERT_BMAP;
748 continue;
749 } else if (strcmp(token, "fixes_only") == 0) {
750 ctx->options |= E2F_OPT_FIXES_ONLY;
751 continue;
752 } else if (strcmp(token, "unshare_blocks") == 0) {
753 ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
754 ctx->options |= E2F_OPT_FORCE;
755 continue;
756 } else {
757 fprintf(stderr, _("Unknown extended option: %s\n"),
758 token);
759 extended_usage++;
760 }
761 }
762 free(buf);
763
764 if (extended_usage) {
765 fputs(_("\nExtended options are separated by commas, "
766 "and may take an argument which\n"
767 "is set off by an equals ('=') sign. "
768 "Valid extended options are:\n\n"), stderr);
769 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
770 fputs("\tfragcheck\n", stderr);
771 fputs("\tjournal_only\n", stderr);
772 fputs("\tdiscard\n", stderr);
773 fputs("\tnodiscard\n", stderr);
774 fputs("\toptimize_extents\n", stderr);
775 fputs("\tno_optimize_extents\n", stderr);
776 fputs("\tinode_count_fullmap\n", stderr);
777 fputs("\tno_inode_count_fullmap\n", stderr);
778 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
779 fputs("\tbmap2extent\n", stderr);
780 fputs("\tunshare_blocks\n", stderr);
781 fputs("\tfixes_only\n", stderr);
782 fputc('\n', stderr);
783 exit(1);
784 }
785 }
786
syntax_err_report(const char * filename,long err,int line_num)787 static void syntax_err_report(const char *filename, long err, int line_num)
788 {
789 fprintf(stderr,
790 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
791 filename, line_num, error_message(err));
792 exit(FSCK_ERROR);
793 }
794
795 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
796
PRS(int argc,char * argv[],e2fsck_t * ret_ctx)797 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
798 {
799 int flush = 0;
800 int c, fd;
801 #ifdef MTRACE
802 extern void *mallwatch;
803 #endif
804 e2fsck_t ctx;
805 errcode_t retval;
806 #ifdef HAVE_SIGNAL_H
807 struct sigaction sa;
808 #endif
809 char *extended_opts = 0;
810 char *cp;
811 int res; /* result of sscanf */
812 #ifdef CONFIG_JBD_DEBUG
813 char *jbd_debug;
814 #endif
815 unsigned long long phys_mem_kb;
816
817 retval = e2fsck_allocate_context(&ctx);
818 if (retval)
819 return retval;
820
821 *ret_ctx = ctx;
822 e2fsck_global_ctx = ctx;
823
824 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
825 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
826 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
827 ctx->interactive = 1;
828 } else {
829 ctx->start_meta[0] = '\001';
830 ctx->stop_meta[0] = '\002';
831 }
832 memset(bar, '=', sizeof(bar)-1);
833 memset(spaces, ' ', sizeof(spaces)-1);
834 add_error_table(&et_ext2_error_table);
835 add_error_table(&et_prof_error_table);
836 blkid_get_cache(&ctx->blkid, NULL);
837
838 if (argc && *argv)
839 ctx->program_name = *argv;
840 else
841 ctx->program_name = "e2fsck";
842
843 phys_mem_kb = get_memory_size() / 1024;
844 ctx->readahead_kb = ~0ULL;
845 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
846 switch (c) {
847 case 'C':
848 ctx->progress = e2fsck_update_progress;
849 res = sscanf(optarg, "%d", &ctx->progress_fd);
850 if (res != 1)
851 goto sscanf_err;
852
853 if (ctx->progress_fd < 0) {
854 ctx->progress = 0;
855 ctx->progress_fd = ctx->progress_fd * -1;
856 }
857 if (!ctx->progress_fd)
858 break;
859 /* Validate the file descriptor to avoid disasters */
860 fd = dup(ctx->progress_fd);
861 if (fd < 0) {
862 fprintf(stderr,
863 _("Error validating file descriptor %d: %s\n"),
864 ctx->progress_fd,
865 error_message(errno));
866 fatal_error(ctx,
867 _("Invalid completion information file descriptor"));
868 } else
869 close(fd);
870 break;
871 case 'D':
872 ctx->options |= E2F_OPT_COMPRESS_DIRS;
873 break;
874 case 'E':
875 extended_opts = optarg;
876 break;
877 case 'p':
878 case 'a':
879 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
880 conflict_opt:
881 fatal_error(ctx,
882 _("Only one of the options -p/-a, -n or -y may be specified."));
883 }
884 ctx->options |= E2F_OPT_PREEN;
885 break;
886 case 'n':
887 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
888 goto conflict_opt;
889 ctx->options |= E2F_OPT_NO;
890 break;
891 case 'y':
892 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
893 goto conflict_opt;
894 ctx->options |= E2F_OPT_YES;
895 break;
896 case 't':
897 #ifdef RESOURCE_TRACK
898 if (ctx->options & E2F_OPT_TIME)
899 ctx->options |= E2F_OPT_TIME2;
900 else
901 ctx->options |= E2F_OPT_TIME;
902 #else
903 fprintf(stderr, _("The -t option is not "
904 "supported on this version of e2fsck.\n"));
905 #endif
906 break;
907 case 'c':
908 if (cflag++)
909 ctx->options |= E2F_OPT_WRITECHECK;
910 ctx->options |= E2F_OPT_CHECKBLOCKS;
911 break;
912 case 'r':
913 /* What we do by default, anyway! */
914 break;
915 case 'b':
916 res = sscanf(optarg, "%llu", &ctx->use_superblock);
917 if (res != 1)
918 goto sscanf_err;
919 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
920 break;
921 case 'B':
922 ctx->blocksize = atoi(optarg);
923 break;
924 case 'I':
925 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
926 if (res != 1)
927 goto sscanf_err;
928 break;
929 case 'j':
930 ctx->journal_name = blkid_get_devname(ctx->blkid,
931 optarg, NULL);
932 if (!ctx->journal_name) {
933 com_err(ctx->program_name, 0,
934 _("Unable to resolve '%s'"),
935 optarg);
936 fatal_error(ctx, 0);
937 }
938 break;
939 case 'P':
940 res = sscanf(optarg, "%d", &ctx->process_inode_size);
941 if (res != 1)
942 goto sscanf_err;
943 break;
944 case 'L':
945 replace_bad_blocks++;
946 /* fall through */
947 case 'l':
948 if (bad_blocks_file)
949 free(bad_blocks_file);
950 bad_blocks_file = string_copy(ctx, optarg, 0);
951 break;
952 case 'd':
953 ctx->options |= E2F_OPT_DEBUG;
954 break;
955 case 'f':
956 ctx->options |= E2F_OPT_FORCE;
957 break;
958 case 'F':
959 flush = 1;
960 break;
961 case 'v':
962 verbose = 1;
963 break;
964 case 'V':
965 show_version_only = 1;
966 break;
967 #ifdef MTRACE
968 case 'M':
969 mallwatch = (void *) strtol(optarg, NULL, 0);
970 break;
971 #endif
972 case 'N':
973 ctx->device_name = string_copy(ctx, optarg, 0);
974 break;
975 case 'k':
976 keep_bad_blocks++;
977 break;
978 case 'z':
979 ctx->undo_file = optarg;
980 break;
981 default:
982 usage(ctx);
983 }
984 if (show_version_only)
985 return 0;
986 if (optind != argc - 1)
987 usage(ctx);
988 if ((ctx->options & E2F_OPT_NO) &&
989 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
990 com_err(ctx->program_name, 0, "%s",
991 _("The -n and -D options are incompatible."));
992 fatal_error(ctx, 0);
993 }
994 if ((ctx->options & E2F_OPT_NO) && cflag) {
995 com_err(ctx->program_name, 0, "%s",
996 _("The -n and -c options are incompatible."));
997 fatal_error(ctx, 0);
998 }
999 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
1000 com_err(ctx->program_name, 0, "%s",
1001 _("The -n and -l/-L options are incompatible."));
1002 fatal_error(ctx, 0);
1003 }
1004 if (ctx->options & E2F_OPT_NO)
1005 ctx->options |= E2F_OPT_READONLY;
1006
1007 ctx->io_options = strchr(argv[optind], '?');
1008 if (ctx->io_options)
1009 *ctx->io_options++ = 0;
1010 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
1011 if (!ctx->filesystem_name) {
1012 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
1013 argv[optind]);
1014 fatal_error(ctx, 0);
1015 }
1016 if (extended_opts)
1017 parse_extended_opts(ctx, extended_opts);
1018
1019 /* Complain about mutually exclusive rebuilding activities */
1020 if (getenv("E2FSCK_FIXES_ONLY"))
1021 ctx->options |= E2F_OPT_FIXES_ONLY;
1022 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1023 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1024 com_err(ctx->program_name, 0, "%s",
1025 _("The -D and -E fixes_only options are incompatible."));
1026 fatal_error(ctx, 0);
1027 }
1028 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1029 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1030 com_err(ctx->program_name, 0, "%s",
1031 _("The -E bmap2extent and fixes_only options are incompatible."));
1032 fatal_error(ctx, 0);
1033 }
1034
1035 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1036 config_fn[0] = cp;
1037 profile_set_syntax_err_cb(syntax_err_report);
1038 profile_init(config_fn, &ctx->profile);
1039
1040 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1041 &c);
1042 if (c)
1043 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1044 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1045 &c);
1046 if (c)
1047 verbose = 1;
1048
1049 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1050 0, 0, &c);
1051 if (c)
1052 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1053
1054 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1055 0, 0, &c);
1056 if (c)
1057 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1058
1059 if (ctx->readahead_kb == ~0ULL) {
1060 profile_get_integer(ctx->profile, "options",
1061 "readahead_mem_pct", 0, -1, &c);
1062 if (c >= 0 && c <= 100)
1063 ctx->readahead_kb = phys_mem_kb * c / 100;
1064 profile_get_integer(ctx->profile, "options",
1065 "readahead_kb", 0, -1, &c);
1066 if (c >= 0)
1067 ctx->readahead_kb = c;
1068 if (ctx->readahead_kb != ~0ULL &&
1069 ctx->readahead_kb > phys_mem_kb)
1070 ctx->readahead_kb = phys_mem_kb;
1071 }
1072
1073 /* Turn off discard in read-only mode */
1074 if ((ctx->options & E2F_OPT_NO) &&
1075 (ctx->options & E2F_OPT_DISCARD))
1076 ctx->options &= ~E2F_OPT_DISCARD;
1077
1078 if (flush) {
1079 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1080 if (fd < 0) {
1081 com_err("open", errno,
1082 _("while opening %s for flushing"),
1083 ctx->filesystem_name);
1084 fatal_error(ctx, 0);
1085 }
1086 if ((retval = ext2fs_sync_device(fd, 1))) {
1087 com_err("ext2fs_sync_device", retval,
1088 _("while trying to flush %s"),
1089 ctx->filesystem_name);
1090 fatal_error(ctx, 0);
1091 }
1092 close(fd);
1093 }
1094 if (cflag && bad_blocks_file) {
1095 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1096 "be both used at the same time.\n"));
1097 exit(FSCK_USAGE);
1098 }
1099 #ifdef HAVE_SIGNAL_H
1100 /*
1101 * Set up signal action
1102 */
1103 memset(&sa, 0, sizeof(struct sigaction));
1104 sa.sa_handler = signal_cancel;
1105 sigaction(SIGINT, &sa, 0);
1106 sigaction(SIGTERM, &sa, 0);
1107 #ifdef SA_RESTART
1108 sa.sa_flags = SA_RESTART;
1109 #endif
1110 sa.sa_handler = signal_progress_on;
1111 sigaction(SIGUSR1, &sa, 0);
1112 sa.sa_handler = signal_progress_off;
1113 sigaction(SIGUSR2, &sa, 0);
1114 #endif
1115
1116 /* Update our PATH to include /sbin if we need to run badblocks */
1117 if (cflag) {
1118 char *oldpath = getenv("PATH");
1119 char *newpath;
1120 int len = sizeof(PATH_SET) + 1;
1121
1122 if (oldpath)
1123 len += strlen(oldpath);
1124
1125 newpath = malloc(len);
1126 if (!newpath)
1127 fatal_error(ctx, "Couldn't malloc() newpath");
1128 strcpy(newpath, PATH_SET);
1129
1130 if (oldpath) {
1131 strcat(newpath, ":");
1132 strcat(newpath, oldpath);
1133 }
1134 putenv(newpath);
1135 }
1136 #ifdef CONFIG_JBD_DEBUG
1137 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1138 if (jbd_debug) {
1139 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1140 if (res != 1) {
1141 fprintf(stderr,
1142 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1143 jbd_debug);
1144 exit (1);
1145 }
1146 }
1147 #endif
1148 return 0;
1149
1150 sscanf_err:
1151 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1152 c, optarg);
1153 exit (1);
1154 }
1155
try_open_fs(e2fsck_t ctx,int flags,io_manager io_ptr,ext2_filsys * ret_fs)1156 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1157 ext2_filsys *ret_fs)
1158 {
1159 errcode_t retval;
1160
1161 *ret_fs = NULL;
1162 if (ctx->superblock && ctx->blocksize) {
1163 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1164 flags, ctx->superblock, ctx->blocksize,
1165 io_ptr, ret_fs);
1166 } else if (ctx->superblock) {
1167 int blocksize;
1168 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1169 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1170 if (*ret_fs) {
1171 ext2fs_free(*ret_fs);
1172 *ret_fs = NULL;
1173 }
1174 retval = ext2fs_open2(ctx->filesystem_name,
1175 ctx->io_options, flags,
1176 ctx->superblock, blocksize,
1177 io_ptr, ret_fs);
1178 if (!retval)
1179 break;
1180 }
1181 } else
1182 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1183 flags, 0, 0, io_ptr, ret_fs);
1184
1185 if (retval == 0) {
1186 (*ret_fs)->priv_data = ctx;
1187 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1188 "default", NULL);
1189 }
1190 return retval;
1191 }
1192
1193 static const char *my_ver_string = E2FSPROGS_VERSION;
1194 static const char *my_ver_date = E2FSPROGS_DATE;
1195
e2fsck_check_mmp(ext2_filsys fs,e2fsck_t ctx)1196 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1197 {
1198 struct mmp_struct *mmp_s;
1199 unsigned int mmp_check_interval;
1200 errcode_t retval = 0;
1201 struct problem_context pctx;
1202 unsigned int wait_time = 0;
1203
1204 clear_problem_context(&pctx);
1205 if (fs->mmp_buf == NULL) {
1206 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1207 if (retval)
1208 goto check_error;
1209 }
1210
1211 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1212 if (retval)
1213 goto check_error;
1214
1215 mmp_s = fs->mmp_buf;
1216
1217 mmp_check_interval = fs->super->s_mmp_update_interval;
1218 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1219 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1220
1221 /*
1222 * If check_interval in MMP block is larger, use that instead of
1223 * check_interval from the superblock.
1224 */
1225 if (mmp_s->mmp_check_interval > mmp_check_interval)
1226 mmp_check_interval = mmp_s->mmp_check_interval;
1227
1228 wait_time = mmp_check_interval * 2 + 1;
1229
1230 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1231 retval = 0;
1232 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1233 retval = EXT2_ET_MMP_FSCK_ON;
1234 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1235 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1236
1237 if (retval)
1238 goto check_error;
1239
1240 /* Print warning if e2fsck will wait for more than 20 secs. */
1241 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1242 log_out(ctx, _("MMP interval is %u seconds and total wait "
1243 "time is %u seconds. Please wait...\n"),
1244 mmp_check_interval, wait_time * 2);
1245 }
1246
1247 return 0;
1248
1249 check_error:
1250
1251 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1252 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1253 fs->super->s_mmp_block = 0;
1254 ext2fs_mark_super_dirty(fs);
1255 retval = 0;
1256 }
1257 } else if (retval == EXT2_ET_MMP_FAILED) {
1258 com_err(ctx->program_name, retval, "%s",
1259 _("while checking MMP block"));
1260 dump_mmp_msg(fs->mmp_buf, NULL);
1261 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1262 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1263 com_err(ctx->program_name, retval, "%s",
1264 _("while checking MMP block"));
1265 dump_mmp_msg(fs->mmp_buf,
1266 _("If you are sure the filesystem is not "
1267 "in use on any node, run:\n"
1268 "'tune2fs -f -E clear_mmp %s'\n"),
1269 ctx->device_name);
1270 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1271 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1272 ext2fs_mmp_clear(fs);
1273 retval = 0;
1274 }
1275 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1276 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1277 ext2fs_mmp_clear(fs);
1278 retval = 0;
1279 }
1280 } else
1281 com_err(ctx->program_name, retval, "%s",
1282 _("while reading MMP block"));
1283 return retval;
1284 }
1285
e2fsck_setup_tdb(e2fsck_t ctx,io_manager * io_ptr)1286 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1287 {
1288 errcode_t retval = ENOMEM;
1289 char *tdb_dir = NULL, *tdb_file = NULL;
1290 char *dev_name, *tmp_name;
1291 int free_tdb_dir = 0;
1292
1293 /* (re)open a specific undo file */
1294 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1295 retval = set_undo_io_backing_manager(*io_ptr);
1296 if (retval)
1297 goto err;
1298 *io_ptr = undo_io_manager;
1299 retval = set_undo_io_backup_file(ctx->undo_file);
1300 if (retval)
1301 goto err;
1302 printf(_("Overwriting existing filesystem; this can be undone "
1303 "using the command:\n"
1304 " e2undo %s %s\n\n"),
1305 ctx->undo_file, ctx->filesystem_name);
1306 return retval;
1307 }
1308
1309 /*
1310 * Configuration via a conf file would be
1311 * nice
1312 */
1313 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1314 if (!tdb_dir) {
1315 profile_get_string(ctx->profile, "defaults",
1316 "undo_dir", 0, "/var/lib/e2fsprogs",
1317 &tdb_dir);
1318 free_tdb_dir = 1;
1319 }
1320
1321 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1322 access(tdb_dir, W_OK)) {
1323 if (free_tdb_dir)
1324 free(tdb_dir);
1325 return 0;
1326 }
1327
1328 tmp_name = strdup(ctx->filesystem_name);
1329 if (!tmp_name)
1330 goto errout;
1331 dev_name = basename(tmp_name);
1332 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1333 if (!tdb_file) {
1334 free(tmp_name);
1335 goto errout;
1336 }
1337 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1338 free(tmp_name);
1339
1340 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1341 retval = errno;
1342 com_err(ctx->program_name, retval,
1343 _("while trying to delete %s"), tdb_file);
1344 goto errout;
1345 }
1346
1347 retval = set_undo_io_backing_manager(*io_ptr);
1348 if (retval)
1349 goto errout;
1350 *io_ptr = undo_io_manager;
1351 retval = set_undo_io_backup_file(tdb_file);
1352 if (retval)
1353 goto errout;
1354 printf(_("Overwriting existing filesystem; this can be undone "
1355 "using the command:\n"
1356 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1357
1358 if (free_tdb_dir)
1359 free(tdb_dir);
1360 free(tdb_file);
1361 return 0;
1362
1363 errout:
1364 if (free_tdb_dir)
1365 free(tdb_dir);
1366 free(tdb_file);
1367 err:
1368 com_err(ctx->program_name, retval, "%s",
1369 _("while trying to setup undo file\n"));
1370 return retval;
1371 }
1372
main(int argc,char * argv[])1373 int main (int argc, char *argv[])
1374 {
1375 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1376 int exit_value = FSCK_OK;
1377 ext2_filsys fs = 0;
1378 io_manager io_ptr;
1379 struct ext2_super_block *sb;
1380 const char *lib_ver_date;
1381 int my_ver, lib_ver;
1382 e2fsck_t ctx;
1383 blk64_t orig_superblock = ~(blk64_t)0;
1384 struct problem_context pctx;
1385 int flags, run_result, was_changed;
1386 int journal_size;
1387 int sysval, sys_page_size = 4096;
1388 int old_bitmaps;
1389 __u32 features[3];
1390 char *cp;
1391 enum quota_type qtype;
1392
1393 clear_problem_context(&pctx);
1394 sigcatcher_setup();
1395 #ifdef MTRACE
1396 mtrace();
1397 #endif
1398 #ifdef MCHECK
1399 mcheck(0);
1400 #endif
1401 #ifdef ENABLE_NLS
1402 setlocale(LC_MESSAGES, "");
1403 setlocale(LC_CTYPE, "");
1404 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1405 textdomain(NLS_CAT_NAME);
1406 set_com_err_gettext(gettext);
1407 #endif
1408 my_ver = ext2fs_parse_version_string(my_ver_string);
1409 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1410 if (my_ver > lib_ver) {
1411 fprintf( stderr, "%s",
1412 _("Error: ext2fs library version out of date!\n"));
1413 show_version_only++;
1414 }
1415
1416 retval = PRS(argc, argv, &ctx);
1417 if (retval) {
1418 com_err("e2fsck", retval, "%s",
1419 _("while trying to initialize program"));
1420 exit(FSCK_ERROR);
1421 }
1422 reserve_stdio_fds();
1423
1424 set_up_logging(ctx);
1425 if (ctx->logf) {
1426 int i;
1427
1428 fputs("E2fsck run: ", ctx->logf);
1429 for (i = 0; i < argc; i++) {
1430 if (i)
1431 fputc(' ', ctx->logf);
1432 fputs(argv[i], ctx->logf);
1433 }
1434 fputc('\n', ctx->logf);
1435 }
1436 if (ctx->problem_logf) {
1437 int i;
1438
1439 fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n",
1440 ctx->problem_logf);
1441 fprintf(ctx->problem_logf, "<problem_log time=\"%lu\">\n",
1442 ctx->now);
1443 fprintf(ctx->problem_logf, "<invocation prog=\"%s\"",
1444 argv[0]);
1445 for (i = 1; i < argc; i++)
1446 fprintf(ctx->problem_logf, " arg%d=\"%s\"", i, argv[i]);
1447 fputs("/>\n", ctx->problem_logf);
1448 }
1449
1450 init_resource_track(&ctx->global_rtrack, NULL);
1451 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1452 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1453 my_ver_date);
1454
1455 if (show_version_only) {
1456 log_err(ctx, _("\tUsing %s, %s\n"),
1457 error_message(EXT2_ET_BASE), lib_ver_date);
1458 exit(FSCK_OK);
1459 }
1460
1461 check_mount(ctx);
1462
1463 if (!(ctx->options & E2F_OPT_PREEN) &&
1464 !(ctx->options & E2F_OPT_NO) &&
1465 !(ctx->options & E2F_OPT_YES)) {
1466 if (!ctx->interactive)
1467 fatal_error(ctx,
1468 _("need terminal for interactive repairs"));
1469 }
1470 ctx->superblock = ctx->use_superblock;
1471
1472 flags = EXT2_FLAG_SKIP_MMP;
1473 restart:
1474 #ifdef CONFIG_TESTIO_DEBUG
1475 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1476 io_ptr = test_io_manager;
1477 test_io_backing_manager = unix_io_manager;
1478 } else
1479 #endif
1480 io_ptr = unix_io_manager;
1481 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1482 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1483 &old_bitmaps);
1484 if (!old_bitmaps)
1485 flags |= EXT2_FLAG_64BITS;
1486 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1487 flags |= EXT2_FLAG_RW;
1488 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1489 ctx->mount_flags & EXT2_MF_READONLY))
1490 flags |= EXT2_FLAG_EXCLUSIVE;
1491 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1492 (ctx->options & E2F_OPT_FORCE))
1493 flags &= ~EXT2_FLAG_EXCLUSIVE;
1494 }
1495
1496 if (ctx->undo_file) {
1497 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1498 if (retval)
1499 exit(FSCK_ERROR);
1500 }
1501
1502 ctx->openfs_flags = flags;
1503 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1504
1505 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1506 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1507 ((retval == EXT2_ET_BAD_MAGIC) ||
1508 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1509 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1510 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1511 if (retval) {
1512 pctx.errcode = retval;
1513 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1514 }
1515 if (retval2) {
1516 pctx.errcode = retval2;
1517 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1518 }
1519 pctx.errcode = 0;
1520 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1521 retval = retval2;
1522 goto failure;
1523 }
1524 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1525 ext2fs_free(fs);
1526 fs = NULL;
1527 }
1528 if (!fs || (fs->group_desc_count > 1)) {
1529 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1530 ctx->program_name,
1531 retval ? _("Superblock invalid,") :
1532 _("Group descriptors look bad..."));
1533 orig_superblock = ctx->superblock;
1534 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1535 if (fs)
1536 ext2fs_close_free(&fs);
1537 orig_retval = retval;
1538 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1539 if ((orig_retval == 0) && retval != 0) {
1540 if (fs)
1541 ext2fs_close_free(&fs);
1542 log_out(ctx, _("%s: %s while using the "
1543 "backup blocks"),
1544 ctx->program_name,
1545 error_message(retval));
1546 log_out(ctx, _("%s: going back to original "
1547 "superblock\n"),
1548 ctx->program_name);
1549 ctx->superblock = orig_superblock;
1550 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1551 }
1552 }
1553 }
1554 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1555 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1556 fs && fs->super) {
1557 sb = fs->super;
1558 features[0] = (sb->s_feature_compat &
1559 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1560 features[1] = (sb->s_feature_incompat &
1561 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1562 features[2] = (sb->s_feature_ro_compat &
1563 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1564 if (features[0] || features[1] || features[2])
1565 goto print_unsupp_features;
1566 }
1567 failure:
1568 if (retval) {
1569 if (orig_retval)
1570 retval = orig_retval;
1571 com_err(ctx->program_name, retval, _("while trying to open %s"),
1572 ctx->filesystem_name);
1573 if (retval == EXT2_ET_REV_TOO_HIGH) {
1574 log_out(ctx, "%s",
1575 _("The filesystem revision is apparently "
1576 "too high for this version of e2fsck.\n"
1577 "(Or the filesystem superblock "
1578 "is corrupt)\n\n"));
1579 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1580 } else if (retval == EXT2_ET_SHORT_READ)
1581 log_out(ctx, "%s",
1582 _("Could this be a zero-length partition?\n"));
1583 else if ((retval == EPERM) || (retval == EACCES))
1584 log_out(ctx, _("You must have %s access to the "
1585 "filesystem or be root\n"),
1586 (ctx->options & E2F_OPT_READONLY) ?
1587 "r/o" : "r/w");
1588 else if (retval == ENXIO)
1589 log_out(ctx, "%s",
1590 _("Possibly non-existent or swap device?\n"));
1591 else if (retval == EBUSY)
1592 log_out(ctx, "%s", _("Filesystem mounted or opened "
1593 "exclusively by another program?\n"));
1594 else if (retval == ENOENT)
1595 log_out(ctx, "%s",
1596 _("Possibly non-existent device?\n"));
1597 #ifdef EROFS
1598 else if (retval == EROFS)
1599 log_out(ctx, "%s", _("Disk write-protected; use the "
1600 "-n option to do a read-only\n"
1601 "check of the device.\n"));
1602 #endif
1603 else {
1604 /*
1605 * Let's try once more will less consistency checking
1606 * so that we are able to recover from more errors
1607 * (e.g. some tool messing up some value in the sb).
1608 */
1609 if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) &&
1610 !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) {
1611 if (fs)
1612 ext2fs_close_free(&fs);
1613 log_out(ctx, _("%s: Trying to load superblock "
1614 "despite errors...\n"),
1615 ctx->program_name);
1616 flags |= EXT2_FLAG_IGNORE_SB_ERRORS;
1617 /*
1618 * If we tried backup sb, revert to the
1619 * original one now.
1620 */
1621 if (orig_superblock != ~(blk64_t)0)
1622 ctx->superblock = orig_superblock;
1623 goto restart;
1624 }
1625 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1626 if (retval == EXT2_ET_BAD_MAGIC)
1627 check_plausibility(ctx->filesystem_name,
1628 CHECK_FS_EXIST, NULL);
1629 }
1630 fatal_error(ctx, 0);
1631 }
1632 /*
1633 * We only update the master superblock because (a) paranoia;
1634 * we don't want to corrupt the backup superblocks, and (b) we
1635 * don't need to update the mount count and last checked
1636 * fields in the backup superblock (the kernel doesn't update
1637 * the backup superblocks anyway). With newer versions of the
1638 * library this flag is set by ext2fs_open2(), but we set this
1639 * here just to be sure. (No, we don't support e2fsck running
1640 * with some other libext2fs than the one that it was shipped
1641 * with, but just in case....)
1642 */
1643 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1644
1645 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1646 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1647 int need_restart = 0;
1648
1649 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1650 blocksize,
1651 &ctx->num_blocks);
1652 /*
1653 * The floppy driver refuses to allow anyone else to
1654 * open the device if has been opened with O_EXCL;
1655 * this is unlike other block device drivers in Linux.
1656 * To handle this, we close the filesystem and then
1657 * reopen the filesystem after we get the device size.
1658 */
1659 if (pctx.errcode == EBUSY) {
1660 ext2fs_close_free(&fs);
1661 need_restart++;
1662 pctx.errcode =
1663 ext2fs_get_device_size2(ctx->filesystem_name,
1664 blocksize,
1665 &ctx->num_blocks);
1666 }
1667 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1668 ctx->num_blocks = 0;
1669 else if (pctx.errcode) {
1670 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1671 ctx->flags |= E2F_FLAG_ABORT;
1672 fatal_error(ctx, 0);
1673 }
1674 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1675 if (need_restart)
1676 goto restart;
1677 }
1678
1679 ctx->fs = fs;
1680 fs->now = ctx->now;
1681 sb = fs->super;
1682
1683 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1684 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1685 _("while trying to open %s"),
1686 ctx->filesystem_name);
1687 get_newer:
1688 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1689 }
1690
1691 /*
1692 * Set the device name, which is used whenever we print error
1693 * or informational messages to the user.
1694 */
1695 if (ctx->device_name == 0 &&
1696 (sb->s_volume_name[0] != 0)) {
1697 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1698 sizeof(sb->s_volume_name));
1699 }
1700 if (ctx->device_name == 0)
1701 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1702 for (cp = ctx->device_name; *cp; cp++)
1703 if (isspace(*cp) || *cp == ':')
1704 *cp = '_';
1705
1706 if (ctx->problem_logf) {
1707 char buf[48];
1708
1709 fprintf(ctx->problem_logf, "<filesystem dev=\"%s\"",
1710 ctx->filesystem_name);
1711 if (!uuid_is_null(sb->s_uuid)) {
1712 uuid_unparse(sb->s_uuid, buf);
1713 fprintf(ctx->problem_logf, " uuid=\"%s\"", buf);
1714 }
1715 if (sb->s_volume_name[0]) {
1716 memset(buf, 0, sizeof(buf));
1717 strncpy(buf, sb->s_volume_name, sizeof(buf));
1718 fprintf(ctx->problem_logf, " label=\"%s\"", buf);
1719 }
1720 fputs("/>\n", ctx->problem_logf);
1721 }
1722
1723 ehandler_init(fs->io);
1724
1725 if (ext2fs_has_feature_mmp(fs->super) &&
1726 (flags & EXT2_FLAG_SKIP_MMP)) {
1727 if (e2fsck_check_mmp(fs, ctx))
1728 fatal_error(ctx, 0);
1729
1730 /*
1731 * Restart in order to reopen fs but this time start mmp.
1732 */
1733 ext2fs_close_free(&ctx->fs);
1734 flags &= ~EXT2_FLAG_SKIP_MMP;
1735 goto restart;
1736 }
1737
1738 if (ctx->logf)
1739 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1740 e2p_uuid2str(sb->s_uuid));
1741
1742 /*
1743 * Make sure the ext3 superblock fields are consistent.
1744 */
1745 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1746 retval = e2fsck_check_ext3_journal(ctx);
1747 if (retval) {
1748 com_err(ctx->program_name, retval,
1749 _("while checking journal for %s"),
1750 ctx->device_name);
1751 fatal_error(ctx,
1752 _("Cannot proceed with file system check"));
1753 }
1754 }
1755
1756 /*
1757 * Check to see if we need to do ext3-style recovery. If so,
1758 * do it, and then restart the fsck.
1759 */
1760 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1761 if (ctx->options & E2F_OPT_READONLY) {
1762 log_out(ctx, "%s",
1763 _("Warning: skipping journal recovery because "
1764 "doing a read-only filesystem check.\n"));
1765 io_channel_flush(ctx->fs->io);
1766 } else {
1767 if (ctx->flags & E2F_FLAG_RESTARTED) {
1768 /*
1769 * Whoops, we attempted to run the
1770 * journal twice. This should never
1771 * happen, unless the hardware or
1772 * device driver is being bogus.
1773 */
1774 com_err(ctx->program_name, 0,
1775 _("unable to set superblock flags "
1776 "on %s\n"), ctx->device_name);
1777 fatal_error(ctx, 0);
1778 }
1779 retval = e2fsck_run_ext3_journal(ctx);
1780 if (retval == EFSBADCRC) {
1781 log_out(ctx, _("Journal checksum error "
1782 "found in %s\n"),
1783 ctx->device_name);
1784 } else if (retval == EFSCORRUPTED) {
1785 log_out(ctx, _("Journal corrupted in %s\n"),
1786 ctx->device_name);
1787 } else if (retval) {
1788 com_err(ctx->program_name, retval,
1789 _("while recovering journal of %s"),
1790 ctx->device_name);
1791 }
1792 ext2fs_close_free(&ctx->fs);
1793 ctx->flags |= E2F_FLAG_RESTARTED;
1794 goto restart;
1795 }
1796 }
1797
1798 /*
1799 * Check for compatibility with the feature sets. We need to
1800 * be more stringent than ext2fs_open().
1801 */
1802 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1803 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1804 features[2] = (sb->s_feature_ro_compat &
1805 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1806 print_unsupp_features:
1807 if (features[0] || features[1] || features[2]) {
1808 int i, j;
1809 __u32 *mask = features, m;
1810
1811 log_err(ctx, _("%s has unsupported feature(s):"),
1812 ctx->filesystem_name);
1813
1814 for (i=0; i <3; i++,mask++) {
1815 for (j=0,m=1; j < 32; j++, m<<=1) {
1816 if (*mask & m)
1817 log_err(ctx, " %s",
1818 e2p_feature2string(i, m));
1819 }
1820 }
1821 log_err(ctx, "\n");
1822 goto get_newer;
1823 }
1824
1825 if (ext2fs_has_feature_casefold(sb) && !fs->encoding) {
1826 log_err(ctx, _("%s has unsupported encoding: %0x\n"),
1827 ctx->filesystem_name, sb->s_encoding);
1828 goto get_newer;
1829 }
1830
1831 /*
1832 * If the user specified a specific superblock, presumably the
1833 * master superblock has been trashed. So we mark the
1834 * superblock as dirty, so it can be written out.
1835 */
1836 if (ctx->superblock &&
1837 !(ctx->options & E2F_OPT_READONLY))
1838 ext2fs_mark_super_dirty(fs);
1839
1840 /*
1841 * Calculate the number of filesystem blocks per pagesize. If
1842 * fs->blocksize > page_size, set the number of blocks per
1843 * pagesize to 1 to avoid division by zero errors.
1844 */
1845 #ifdef _SC_PAGESIZE
1846 sysval = sysconf(_SC_PAGESIZE);
1847 if (sysval > 0)
1848 sys_page_size = sysval;
1849 #endif /* _SC_PAGESIZE */
1850 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1851 if (ctx->blocks_per_page == 0)
1852 ctx->blocks_per_page = 1;
1853
1854 if (ctx->superblock)
1855 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1856 ext2fs_mark_valid(fs);
1857 check_super_block(ctx);
1858 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1859 fatal_error(ctx, 0);
1860 check_if_skip(ctx);
1861 check_resize_inode(ctx);
1862 if (bad_blocks_file)
1863 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1864 else if (cflag)
1865 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1866 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1867 fatal_error(ctx, 0);
1868
1869 /*
1870 * Mark the system as valid, 'til proven otherwise
1871 */
1872 ext2fs_mark_valid(fs);
1873
1874 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1875 if (retval) {
1876 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1877 ctx->program_name, error_message(retval));
1878 preenhalt(ctx);
1879 log_out(ctx, "%s", _("This doesn't bode well, "
1880 "but we'll try to go on...\n"));
1881 }
1882
1883 /*
1884 * Save the journal size in megabytes.
1885 * Try and use the journal size from the backup else let e2fsck
1886 * find the default journal size.
1887 */
1888 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1889 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1890 (sb->s_jnl_blocks[16] >> 20);
1891 else
1892 journal_size = -1;
1893
1894 if (ext2fs_has_feature_quota(sb)) {
1895 /* Quotas were enabled. Do quota accounting during fsck. */
1896 clear_problem_context(&pctx);
1897 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1898 if (pctx.errcode) {
1899 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1900 fatal_error(ctx, 0);
1901 }
1902 }
1903
1904 run_result = e2fsck_run(ctx);
1905 e2fsck_clear_progbar(ctx);
1906
1907 if (!ctx->invalid_bitmaps &&
1908 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1909 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1910 if (journal_size < 1024)
1911 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1912 if (journal_size < 0) {
1913 ext2fs_clear_feature_journal(fs->super);
1914 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1915 log_out(ctx, "%s: Couldn't determine "
1916 "journal size\n", ctx->program_name);
1917 goto no_journal;
1918 }
1919 log_out(ctx, _("Creating journal (%d blocks): "),
1920 journal_size);
1921 fflush(stdout);
1922 retval = ext2fs_add_journal_inode(fs,
1923 journal_size, 0);
1924 if (retval) {
1925 log_out(ctx, "%s: while trying to create "
1926 "journal\n", error_message(retval));
1927 goto no_journal;
1928 }
1929 log_out(ctx, "%s", _(" Done.\n"));
1930 log_out(ctx, "%s",
1931 _("\n*** journal has been regenerated ***\n"));
1932 }
1933 }
1934 no_journal:
1935
1936 if (run_result & E2F_FLAG_ABORT) {
1937 fatal_error(ctx, _("aborted"));
1938 } else if (run_result & E2F_FLAG_CANCEL) {
1939 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1940 ctx->device_name : ctx->filesystem_name);
1941 exit_value |= FSCK_CANCELED;
1942 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1943 int needs_writeout;
1944
1945 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1946 if (*quota_sb_inump(sb, qtype) == 0)
1947 continue;
1948 needs_writeout = 0;
1949 pctx.num = qtype;
1950 retval = quota_compare_and_update(ctx->qctx, qtype,
1951 &needs_writeout);
1952 if ((retval || needs_writeout) &&
1953 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1954 pctx.errcode = quota_write_inode(ctx->qctx,
1955 1 << qtype);
1956 if (pctx.errcode)
1957 (void) fix_problem(ctx,
1958 PR_6_WRITE_QUOTAS, &pctx);
1959 }
1960 }
1961 quota_release_context(&ctx->qctx);
1962 }
1963
1964 if (run_result == E2F_FLAG_RESTART) {
1965 log_out(ctx, "%s",
1966 _("Restarting e2fsck from the beginning...\n"));
1967 retval = e2fsck_reset_context(ctx);
1968 if (retval) {
1969 com_err(ctx->program_name, retval, "%s",
1970 _("while resetting context"));
1971 fatal_error(ctx, 0);
1972 }
1973 ext2fs_close_free(&ctx->fs);
1974 goto restart;
1975 }
1976
1977 #ifdef MTRACE
1978 mtrace_print("Cleanup");
1979 #endif
1980 was_changed = ext2fs_test_changed(fs);
1981 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1982 !(ctx->options & E2F_OPT_READONLY)) {
1983 if (ext2fs_test_valid(fs)) {
1984 if (!(sb->s_state & EXT2_VALID_FS))
1985 exit_value |= FSCK_NONDESTRUCT;
1986 sb->s_state = EXT2_VALID_FS;
1987 if (check_backup_super_block(ctx))
1988 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1989 } else
1990 sb->s_state &= ~EXT2_VALID_FS;
1991 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1992 sb->s_lastcheck = ctx->now;
1993 sb->s_mnt_count = 0;
1994 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1995 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1996 if (pctx.errcode)
1997 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1998 ext2fs_mark_super_dirty(fs);
1999 }
2000
2001 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
2002 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) &&
2003 (ctx->options & E2F_OPT_NO))
2004 /* Don't try to write or flush I/O, we just wanted to know whether or
2005 * not there were enough free blocks to undo deduplication.
2006 */
2007 goto skip_write;
2008
2009 if (!(ctx->options & E2F_OPT_READONLY)) {
2010 e2fsck_write_bitmaps(ctx);
2011 if (fs->flags & EXT2_FLAG_DIRTY) {
2012 pctx.errcode = ext2fs_flush(ctx->fs);
2013 if (pctx.errcode)
2014 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
2015 }
2016 pctx.errcode = io_channel_flush(ctx->fs->io);
2017 if (pctx.errcode)
2018 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
2019 }
2020
2021 if (was_changed) {
2022 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
2023
2024 if (fs_fixed)
2025 exit_value |= FSCK_NONDESTRUCT;
2026 if (!(ctx->options & E2F_OPT_PREEN)) {
2027 #if 0 /* Do this later; it breaks too many tests' golden outputs */
2028 log_out(ctx, fs_fixed ?
2029 _("\n%s: ***** FILE SYSTEM ERRORS "
2030 "CORRECTED *****\n") :
2031 _("%s: File system was modified.\n"),
2032 ctx->device_name);
2033 #else
2034 log_out(ctx,
2035 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
2036 ctx->device_name);
2037 #endif
2038 }
2039 if (ctx->mount_flags & EXT2_MF_ISROOT) {
2040 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
2041 ctx->device_name);
2042 exit_value |= FSCK_REBOOT;
2043 }
2044 }
2045
2046 skip_write:
2047 if (!ext2fs_test_valid(fs) ||
2048 ((exit_value & FSCK_CANCELED) &&
2049 (sb->s_state & EXT2_ERROR_FS))) {
2050 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
2051 "errors **********\n\n"), ctx->device_name);
2052 exit_value |= FSCK_UNCORRECTED;
2053 exit_value &= ~FSCK_NONDESTRUCT;
2054 }
2055 if (exit_value & FSCK_CANCELED) {
2056 int allow_cancellation;
2057
2058 profile_get_boolean(ctx->profile, "options",
2059 "allow_cancellation", 0, 0,
2060 &allow_cancellation);
2061 exit_value &= ~FSCK_NONDESTRUCT;
2062 if (allow_cancellation && ext2fs_test_valid(fs) &&
2063 (sb->s_state & EXT2_VALID_FS) &&
2064 !(sb->s_state & EXT2_ERROR_FS))
2065 exit_value = 0;
2066 } else
2067 show_stats(ctx);
2068
2069 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
2070
2071 ext2fs_close_free(&ctx->fs);
2072 free(ctx->journal_name);
2073
2074 if (ctx->logf)
2075 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
2076 e2fsck_free_context(ctx);
2077 remove_error_table(&et_ext2_error_table);
2078 remove_error_table(&et_prof_error_table);
2079 return exit_value;
2080 }
2081