]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blob - e2fsck/unix.c
projects / thirdparty / e2fsprogs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'maint' into next
[thirdparty/e2fsprogs.git] / e2fsck / unix.c
1 /*
2 * unix.c - The unix-specific code for e2fsck
3 *
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 */
11
12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
13
14 #include "config.h"
15 #include <stdio.h>
16 #ifdef HAVE_STDLIB_H
17 #include <stdlib.h>
18 #endif
19 #include <string.h>
20 #include <fcntl.h>
21 #include <ctype.h>
22 #include <time.h>
23 #ifdef HAVE_SIGNAL_H
24 #include <signal.h>
25 #endif
26 #ifdef HAVE_GETOPT_H
27 #include <getopt.h>
28 #else
29 extern char *optarg;
30 extern int optind;
31 #endif
32 #include <unistd.h>
33 #ifdef HAVE_ERRNO_H
34 #include <errno.h>
35 #endif
36 #ifdef HAVE_SYS_IOCTL_H
37 #include <sys/ioctl.h>
38 #endif
39 #ifdef HAVE_MALLOC_H
40 #include <malloc.h>
41 #endif
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
44 #endif
45 #ifdef HAVE_DIRENT_H
46 #include <dirent.h>
47 #endif
48
49 #include "e2p/e2p.h"
50 #include "et/com_err.h"
51 #include "e2p/e2p.h"
52 #include "e2fsck.h"
53 #include "problem.h"
54 #include "../version.h"
55
56 /* Command line options */
57 static int cflag; /* check disk */
58 static int show_version_only;
59 static int verbose;
60
61 static int replace_bad_blocks;
62 static int keep_bad_blocks;
63 static char *bad_blocks_file;
64
65 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
66
67 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jfs-debug */
68 int journal_enable_debug = -1;
69 #endif
70
71 static void usage(e2fsck_t ctx)
72 {
73 fprintf(stderr,
74 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n"
75 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
76 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
77 "\t\t[-E extended-options] device\n"),
78 ctx->program_name);
79
80 fprintf(stderr, "%s", _("\nEmergency help:\n"
81 " -p Automatic repair (no questions)\n"
82 " -n Make no changes to the filesystem\n"
83 " -y Assume \"yes\" to all questions\n"
84 " -c Check for bad blocks and add them to the badblock list\n"
85 " -f Force checking even if filesystem is marked clean\n"));
86 fprintf(stderr, "%s", _(""
87 " -v Be verbose\n"
88 " -b superblock Use alternative superblock\n"
89 " -B blocksize Force blocksize when looking for superblock\n"
90 " -j external_journal Set location of the external journal\n"
91 " -l bad_blocks_file Add to badblocks list\n"
92 " -L bad_blocks_file Set badblocks list\n"
93 ));
94
95 exit(FSCK_USAGE);
96 }
97
98 static void show_stats(e2fsck_t ctx)
99 {
100 ext2_filsys fs = ctx->fs;
101 ext2_ino_t inodes, inodes_used;
102 blk64_t blocks, blocks_used;
103 unsigned int dir_links;
104 unsigned int num_files, num_links;
105 __u32 *mask, m;
106 int frag_percent_file, frag_percent_dir, frag_percent_total;
107 int i, j, printed = 0;
108
109 dir_links = 2 * ctx->fs_directory_count - 1;
110 num_files = ctx->fs_total_count - dir_links;
111 num_links = ctx->fs_links_count - dir_links;
112 inodes = fs->super->s_inodes_count;
113 inodes_used = (fs->super->s_inodes_count -
114 fs->super->s_free_inodes_count);
115 blocks = ext2fs_blocks_count(fs->super);
116 blocks_used = (ext2fs_blocks_count(fs->super) -
117 ext2fs_free_blocks_count(fs->super));
118
119 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
120 frag_percent_file = (frag_percent_file + 5) / 10;
121
122 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
123 frag_percent_dir = (frag_percent_dir + 5) / 10;
124
125 frag_percent_total = ((10000 * (ctx->fs_fragmented +
126 ctx->fs_fragmented_dir))
127 / inodes_used);
128 frag_percent_total = (frag_percent_total + 5) / 10;
129
130 if (!verbose) {
131 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
132 "%llu/%llu blocks\n"),
133 ctx->device_name, inodes_used, inodes,
134 frag_percent_total / 10, frag_percent_total % 10,
135 blocks_used, blocks);
136 return;
137 }
138 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
139 &i);
140 if (verbose && i) {
141 log_out(ctx, "\nFilesystem features:");
142 mask = &ctx->fs->super->s_feature_compat;
143 for (i = 0; i < 3; i++, mask++) {
144 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
145 if (*mask & m) {
146 log_out(ctx, " %s",
147 e2p_feature2string(i, m));
148 printed++;
149 }
150 }
151 }
152 if (printed == 0)
153 log_out(ctx, " (none)");
154 log_out(ctx, "\n");
155 }
156
157 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
158 "\n%12u inodes used (%2.2f%%, out of %u)\n",
159 inodes_used), inodes_used,
160 100.0 * inodes_used / inodes, inodes);
161 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
162 "%12u non-contiguous files (%0d.%d%%)\n",
163 ctx->fs_fragmented),
164 ctx->fs_fragmented, frag_percent_file / 10,
165 frag_percent_file % 10);
166 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
167 "%12u non-contiguous directories (%0d.%d%%)\n",
168 ctx->fs_fragmented_dir),
169 ctx->fs_fragmented_dir, frag_percent_dir / 10,
170 frag_percent_dir % 10);
171 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
172 "%u/%u/%u\n"),
173 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
174
175 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
176 if (ctx->extent_depth_count[j])
177 break;
178 if (++j) {
179 log_out(ctx, "%s", _(" Extent depth histogram: "));
180 for (i=0; i < j; i++) {
181 if (i)
182 fputc('/', stdout);
183 log_out(ctx, "%u", ctx->extent_depth_count[i]);
184 }
185 log_out(ctx, "\n");
186 }
187
188 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
189 "%12llu blocks used (%2.2f%%, out of %llu)\n",
190 blocks_used),
191 blocks_used, 100.0 * blocks_used / blocks, blocks);
192 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
193 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
194 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
195 ctx->large_files), ctx->large_files);
196 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
197 ctx->fs_regular_count), ctx->fs_regular_count);
198 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
199 ctx->fs_directory_count), ctx->fs_directory_count);
200 log_out(ctx, P_("%12u character device file\n",
201 "%12u character device files\n", ctx->fs_chardev_count),
202 ctx->fs_chardev_count);
203 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
204 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
205 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
206 ctx->fs_fifo_count);
207 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
208 ctx->fs_links_count - dir_links);
209 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
210 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
211 log_out(ctx, P_(" (%u fast symbolic link)\n",
212 " (%u fast symbolic links)\n",
213 ctx->fs_fast_symlinks_count),
214 ctx->fs_fast_symlinks_count);
215 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
216 ctx->fs_sockets_count),
217 ctx->fs_sockets_count);
218 log_out(ctx, "------------\n");
219 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
220 num_files);
221 }
222
223 static void check_mount(e2fsck_t ctx)
224 {
225 errcode_t retval;
226 int cont;
227
228 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
229 &ctx->mount_flags);
230 if (retval) {
231 com_err("ext2fs_check_if_mount", retval,
232 _("while determining whether %s is mounted."),
233 ctx->filesystem_name);
234 return;
235 }
236
237 /*
238 * If the filesystem isn't mounted, or it's the root
239 * filesystem and it's mounted read-only, and we're not doing
240 * a read/write check, then everything's fine.
241 */
242 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
243 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
244 (ctx->mount_flags & EXT2_MF_READONLY) &&
245 !(ctx->options & E2F_OPT_WRITECHECK)))
246 return;
247
248 if (((ctx->options & E2F_OPT_READONLY) ||
249 ((ctx->options & E2F_OPT_FORCE) &&
250 (ctx->mount_flags & EXT2_MF_READONLY))) &&
251 !(ctx->options & E2F_OPT_WRITECHECK)) {
252 log_out(ctx, _("Warning! %s is %s.\n"),
253 ctx->filesystem_name,
254 ctx->mount_flags & EXT2_MF_MOUNTED ?
255 "mounted" : "in use");
256 return;
257 }
258
259 log_out(ctx, _("%s is %s.\n"), ctx->filesystem_name,
260 ctx->mount_flags & EXT2_MF_MOUNTED ? "mounted" : "in use");
261 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
262 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
263 puts("\007\007\007\007");
264 log_out(ctx, "%s", _("\n\nWARNING!!! "
265 "The filesystem is mounted. "
266 "If you continue you ***WILL***\n"
267 "cause ***SEVERE*** filesystem damage.\n\n"));
268 puts("\007\007\007");
269 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
270 if (!cont) {
271 printf("%s", _("check aborted.\n"));
272 exit (0);
273 }
274 return;
275 }
276
277 static int is_on_batt(void)
278 {
279 FILE *f;
280 DIR *d;
281 char tmp[80], tmp2[80], fname[80];
282 unsigned int acflag;
283 struct dirent* de;
284
285 f = fopen("/sys/class/power_supply/AC/online", "r");
286 if (f) {
287 if (fscanf(f, "%u\n", &acflag) == 1) {
288 fclose(f);
289 return (!acflag);
290 }
291 fclose(f);
292 }
293 f = fopen("/proc/apm", "r");
294 if (f) {
295 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
296 acflag = 1;
297 fclose(f);
298 return (acflag != 1);
299 }
300 d = opendir("/proc/acpi/ac_adapter");
301 if (d) {
302 while ((de=readdir(d)) != NULL) {
303 if (!strncmp(".", de->d_name, 1))
304 continue;
305 snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
306 de->d_name);
307 f = fopen(fname, "r");
308 if (!f)
309 continue;
310 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
311 tmp[0] = 0;
312 fclose(f);
313 if (strncmp(tmp, "off-line", 8) == 0) {
314 closedir(d);
315 return 1;
316 }
317 }
318 closedir(d);
319 }
320 return 0;
321 }
322
323 /*
324 * This routine checks to see if a filesystem can be skipped; if so,
325 * it will exit with E2FSCK_OK. Under some conditions it will print a
326 * message explaining why a check is being forced.
327 */
328 static void check_if_skip(e2fsck_t ctx)
329 {
330 ext2_filsys fs = ctx->fs;
331 struct problem_context pctx;
332 const char *reason = NULL;
333 unsigned int reason_arg = 0;
334 long next_check;
335 int batt = is_on_batt();
336 int defer_check_on_battery;
337 int broken_system_clock;
338 time_t lastcheck;
339
340 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
341 return;
342
343 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
344 0, 0, &broken_system_clock);
345 if (ctx->flags & E2F_FLAG_TIME_INSANE)
346 broken_system_clock = 1;
347 profile_get_boolean(ctx->profile, "options",
348 "defer_check_on_battery", 0, 1,
349 &defer_check_on_battery);
350 if (!defer_check_on_battery)
351 batt = 0;
352
353 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
354 return;
355
356 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
357 goto skip;
358
359 lastcheck = fs->super->s_lastcheck;
360 if (lastcheck > ctx->now)
361 lastcheck -= ctx->time_fudge;
362 if ((fs->super->s_state & EXT2_ERROR_FS) ||
363 !ext2fs_test_valid(fs))
364 reason = _(" contains a file system with errors");
365 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
366 reason = _(" was not cleanly unmounted");
367 else if (check_backup_super_block(ctx))
368 reason = _(" primary superblock features different from backup");
369 else if ((fs->super->s_max_mnt_count > 0) &&
370 (fs->super->s_mnt_count >=
371 (unsigned) fs->super->s_max_mnt_count)) {
372 reason = _(" has been mounted %u times without being checked");
373 reason_arg = fs->super->s_mnt_count;
374 if (batt && (fs->super->s_mnt_count <
375 (unsigned) fs->super->s_max_mnt_count*2))
376 reason = 0;
377 } else if (!broken_system_clock && fs->super->s_checkinterval &&
378 (ctx->now < lastcheck)) {
379 reason = _(" has filesystem last checked time in the future");
380 if (batt)
381 reason = 0;
382 } else if (!broken_system_clock && fs->super->s_checkinterval &&
383 ((ctx->now - lastcheck) >=
384 ((time_t) fs->super->s_checkinterval))) {
385 reason = _(" has gone %u days without being checked");
386 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
387 if (batt && ((ctx->now - fs->super->s_lastcheck) <
388 fs->super->s_checkinterval*2))
389 reason = 0;
390 }
391 if (reason) {
392 log_out(ctx, "%s", ctx->device_name);
393 log_out(ctx, reason, reason_arg);
394 log_out(ctx, "%s", _(", check forced.\n"));
395 return;
396 }
397
398 /*
399 * Update the global counts from the block group counts. This
400 * is needed since modern kernels don't update the global
401 * counts so as to avoid locking the entire file system. So
402 * if the filesystem is not unmounted cleanly, the global
403 * counts may not be accurate. Update them here if we can,
404 * for the benefit of users who might examine the file system
405 * using dumpe2fs. (This is for cosmetic reasons only.)
406 */
407 clear_problem_context(&pctx);
408 pctx.ino = fs->super->s_free_inodes_count;
409 pctx.ino2 = ctx->free_inodes;
410 if ((pctx.ino != pctx.ino2) &&
411 !(ctx->options & E2F_OPT_READONLY) &&
412 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
413 fs->super->s_free_inodes_count = ctx->free_inodes;
414 ext2fs_mark_super_dirty(fs);
415 }
416 clear_problem_context(&pctx);
417 pctx.blk = ext2fs_free_blocks_count(fs->super);
418 pctx.blk2 = ctx->free_blocks;
419 if ((pctx.blk != pctx.blk2) &&
420 !(ctx->options & E2F_OPT_READONLY) &&
421 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
422 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
423 ext2fs_mark_super_dirty(fs);
424 }
425
426 /* Print the summary message when we're skipping a full check */
427 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
428 ctx->device_name,
429 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
430 fs->super->s_inodes_count,
431 ext2fs_blocks_count(fs->super) -
432 ext2fs_free_blocks_count(fs->super),
433 ext2fs_blocks_count(fs->super));
434 next_check = 100000;
435 if (fs->super->s_max_mnt_count > 0) {
436 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
437 if (next_check <= 0)
438 next_check = 1;
439 }
440 if (!broken_system_clock && fs->super->s_checkinterval &&
441 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
442 next_check = 1;
443 if (next_check <= 5) {
444 if (next_check == 1) {
445 if (batt)
446 log_out(ctx, "%s",
447 _(" (check deferred; on battery)"));
448 else
449 log_out(ctx, "%s",
450 _(" (check after next mount)"));
451 } else
452 log_out(ctx, _(" (check in %ld mounts)"),
453 next_check);
454 }
455 log_out(ctx, "\n");
456 skip:
457 ext2fs_close(fs);
458 ctx->fs = NULL;
459 e2fsck_free_context(ctx);
460 exit(FSCK_OK);
461 }
462
463 /*
464 * For completion notice
465 */
466 struct percent_tbl {
467 int max_pass;
468 int table[32];
469 };
470 static struct percent_tbl e2fsck_tbl = {
471 5, { 0, 70, 90, 92, 95, 100 }
472 };
473 static char bar[128], spaces[128];
474
475 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
476 int max)
477 {
478 float percent;
479
480 if (pass <= 0)
481 return 0.0;
482 if (pass > tbl->max_pass || max == 0)
483 return 100.0;
484 percent = ((float) curr) / ((float) max);
485 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
486 + tbl->table[pass-1]);
487 }
488
489 void e2fsck_clear_progbar(e2fsck_t ctx)
490 {
491 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
492 return;
493
494 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
495 ctx->stop_meta);
496 fflush(stdout);
497 ctx->flags &= ~E2F_FLAG_PROG_BAR;
498 }
499
500 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
501 unsigned int dpynum)
502 {
503 static const char spinner[] = "\\|/-";
504 int i;
505 unsigned int tick;
506 struct timeval tv;
507 int dpywidth;
508 int fixed_percent;
509
510 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
511 return 0;
512
513 /*
514 * Calculate the new progress position. If the
515 * percentage hasn't changed, then we skip out right
516 * away.
517 */
518 fixed_percent = (int) ((10 * percent) + 0.5);
519 if (ctx->progress_last_percent == fixed_percent)
520 return 0;
521 ctx->progress_last_percent = fixed_percent;
522
523 /*
524 * If we've already updated the spinner once within
525 * the last 1/8th of a second, no point doing it
526 * again.
527 */
528 gettimeofday(&tv, NULL);
529 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
530 if ((tick == ctx->progress_last_time) &&
531 (fixed_percent != 0) && (fixed_percent != 1000))
532 return 0;
533 ctx->progress_last_time = tick;
534
535 /*
536 * Advance the spinner, and note that the progress bar
537 * will be on the screen
538 */
539 ctx->progress_pos = (ctx->progress_pos+1) & 3;
540 ctx->flags |= E2F_FLAG_PROG_BAR;
541
542 dpywidth = 66 - strlen(label);
543 dpywidth = 8 * (dpywidth / 8);
544 if (dpynum)
545 dpywidth -= 8;
546
547 i = ((percent * dpywidth) + 50) / 100;
548 printf("%s%s: |%s%s", ctx->start_meta, label,
549 bar + (sizeof(bar) - (i+1)),
550 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
551 if (fixed_percent == 1000)
552 fputc('|', stdout);
553 else
554 fputc(spinner[ctx->progress_pos & 3], stdout);
555 printf(" %4.1f%% ", percent);
556 if (dpynum)
557 printf("%u\r", dpynum);
558 else
559 fputs(" \r", stdout);
560 fputs(ctx->stop_meta, stdout);
561
562 if (fixed_percent == 1000)
563 e2fsck_clear_progbar(ctx);
564 fflush(stdout);
565
566 return 0;
567 }
568
569 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
570 unsigned long cur, unsigned long max)
571 {
572 char buf[1024];
573 float percent;
574
575 if (pass == 0)
576 return 0;
577
578 if (ctx->progress_fd) {
579 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
580 pass, cur, max, ctx->device_name);
581 write_all(ctx->progress_fd, buf, strlen(buf));
582 } else {
583 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
584 e2fsck_simple_progress(ctx, ctx->device_name,
585 percent, 0);
586 }
587 return 0;
588 }
589
590 #define PATH_SET "PATH=/sbin"
591
592 /*
593 * Make sure 0,1,2 file descriptors are open, so that we don't open
594 * the filesystem using the same file descriptor as stdout or stderr.
595 */
596 static void reserve_stdio_fds(void)
597 {
598 int fd = 0;
599
600 while (fd <= 2) {
601 fd = open("/dev/null", O_RDWR);
602 if (fd < 0) {
603 fprintf(stderr, _("ERROR: Couldn't open "
604 "/dev/null (%s)\n"),
605 strerror(errno));
606 break;
607 }
608 }
609 }
610
611 #ifdef HAVE_SIGNAL_H
612 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
613 {
614 e2fsck_t ctx = e2fsck_global_ctx;
615
616 if (!ctx)
617 return;
618
619 ctx->progress = e2fsck_update_progress;
620 }
621
622 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
623 {
624 e2fsck_t ctx = e2fsck_global_ctx;
625
626 if (!ctx)
627 return;
628
629 e2fsck_clear_progbar(ctx);
630 ctx->progress = 0;
631 }
632
633 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
634 {
635 e2fsck_t ctx = e2fsck_global_ctx;
636
637 if (!ctx)
638 exit(FSCK_CANCELED);
639
640 ctx->flags |= E2F_FLAG_CANCEL;
641 }
642 #endif
643
644 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
645 {
646 char *buf, *token, *next, *p, *arg;
647 int ea_ver;
648 int extended_usage = 0;
649
650 buf = string_copy(ctx, opts, 0);
651 for (token = buf; token && *token; token = next) {
652 p = strchr(token, ',');
653 next = 0;
654 if (p) {
655 *p = 0;
656 next = p+1;
657 }
658 arg = strchr(token, '=');
659 if (arg) {
660 *arg = 0;
661 arg++;
662 }
663 if (strcmp(token, "ea_ver") == 0) {
664 if (!arg) {
665 extended_usage++;
666 continue;
667 }
668 ea_ver = strtoul(arg, &p, 0);
669 if (*p ||
670 ((ea_ver != 1) && (ea_ver != 2))) {
671 fprintf(stderr, "%s",
672 _("Invalid EA version.\n"));
673 extended_usage++;
674 continue;
675 }
676 ctx->ext_attr_ver = ea_ver;
677 } else if (strcmp(token, "fragcheck") == 0) {
678 ctx->options |= E2F_OPT_FRAGCHECK;
679 continue;
680 } else if (strcmp(token, "journal_only") == 0) {
681 if (arg) {
682 extended_usage++;
683 continue;
684 }
685 ctx->options |= E2F_OPT_JOURNAL_ONLY;
686 } else if (strcmp(token, "discard") == 0) {
687 ctx->options |= E2F_OPT_DISCARD;
688 continue;
689 } else if (strcmp(token, "nodiscard") == 0) {
690 ctx->options &= ~E2F_OPT_DISCARD;
691 continue;
692 } else if (strcmp(token, "log_filename") == 0) {
693 if (!arg)
694 extended_usage++;
695 else
696 ctx->log_fn = string_copy(ctx, arg, 0);
697 continue;
698 } else {
699 fprintf(stderr, _("Unknown extended option: %s\n"),
700 token);
701 extended_usage++;
702 }
703 }
704 free(buf);
705
706 if (extended_usage) {
707 fputs(("\nExtended options are separated by commas, "
708 "and may take an argument which\n"
709 "is set off by an equals ('=') sign. "
710 "Valid extended options are:\n"), stderr);
711 fputs(("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
712 fputs(("\tfragcheck\n"), stderr);
713 fputs(("\tjournal_only\n"), stderr);
714 fputs(("\tdiscard\n"), stderr);
715 fputs(("\tnodiscard\n"), stderr);
716 fputc('\n', stderr);
717 exit(1);
718 }
719 }
720
721 static void syntax_err_report(const char *filename, long err, int line_num)
722 {
723 fprintf(stderr,
724 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
725 filename, line_num, error_message(err));
726 exit(FSCK_ERROR);
727 }
728
729 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
730
731 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
732 {
733 int flush = 0;
734 int c, fd;
735 #ifdef MTRACE
736 extern void *mallwatch;
737 #endif
738 e2fsck_t ctx;
739 errcode_t retval;
740 #ifdef HAVE_SIGNAL_H
741 struct sigaction sa;
742 #endif
743 char *extended_opts = 0;
744 char *cp;
745 int res; /* result of sscanf */
746 #ifdef CONFIG_JBD_DEBUG
747 char *jbd_debug;
748 #endif
749
750 retval = e2fsck_allocate_context(&ctx);
751 if (retval)
752 return retval;
753
754 *ret_ctx = ctx;
755 e2fsck_global_ctx = ctx;
756
757 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
758 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
759 if (isatty(0) && isatty(1)) {
760 ctx->interactive = 1;
761 } else {
762 ctx->start_meta[0] = '\001';
763 ctx->stop_meta[0] = '\002';
764 }
765 memset(bar, '=', sizeof(bar)-1);
766 memset(spaces, ' ', sizeof(spaces)-1);
767 add_error_table(&et_ext2_error_table);
768 add_error_table(&et_prof_error_table);
769 blkid_get_cache(&ctx->blkid, NULL);
770
771 if (argc && *argv)
772 ctx->program_name = *argv;
773 else
774 ctx->program_name = "e2fsck";
775
776 while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
777 switch (c) {
778 case 'C':
779 ctx->progress = e2fsck_update_progress;
780 res = sscanf(optarg, "%d", &ctx->progress_fd);
781 if (res != 1)
782 goto sscanf_err;
783
784 if (ctx->progress_fd < 0) {
785 ctx->progress = 0;
786 ctx->progress_fd = ctx->progress_fd * -1;
787 }
788 if (!ctx->progress_fd)
789 break;
790 /* Validate the file descriptor to avoid disasters */
791 fd = dup(ctx->progress_fd);
792 if (fd < 0) {
793 fprintf(stderr,
794 _("Error validating file descriptor %d: %s\n"),
795 ctx->progress_fd,
796 error_message(errno));
797 fatal_error(ctx,
798 _("Invalid completion information file descriptor"));
799 } else
800 close(fd);
801 break;
802 case 'D':
803 ctx->options |= E2F_OPT_COMPRESS_DIRS;
804 break;
805 case 'E':
806 extended_opts = optarg;
807 break;
808 case 'p':
809 case 'a':
810 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
811 conflict_opt:
812 fatal_error(ctx,
813 _("Only one of the options -p/-a, -n or -y may be specified."));
814 }
815 ctx->options |= E2F_OPT_PREEN;
816 break;
817 case 'n':
818 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
819 goto conflict_opt;
820 ctx->options |= E2F_OPT_NO;
821 break;
822 case 'y':
823 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
824 goto conflict_opt;
825 ctx->options |= E2F_OPT_YES;
826 break;
827 case 't':
828 #ifdef RESOURCE_TRACK
829 if (ctx->options & E2F_OPT_TIME)
830 ctx->options |= E2F_OPT_TIME2;
831 else
832 ctx->options |= E2F_OPT_TIME;
833 #else
834 fprintf(stderr, _("The -t option is not "
835 "supported on this version of e2fsck.\n"));
836 #endif
837 break;
838 case 'c':
839 if (cflag++)
840 ctx->options |= E2F_OPT_WRITECHECK;
841 ctx->options |= E2F_OPT_CHECKBLOCKS;
842 break;
843 case 'r':
844 /* What we do by default, anyway! */
845 break;
846 case 'b':
847 res = sscanf(optarg, "%llu", &ctx->use_superblock);
848 if (res != 1)
849 goto sscanf_err;
850 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
851 break;
852 case 'B':
853 ctx->blocksize = atoi(optarg);
854 break;
855 case 'I':
856 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
857 if (res != 1)
858 goto sscanf_err;
859 break;
860 case 'j':
861 ctx->journal_name = blkid_get_devname(ctx->blkid,
862 optarg, NULL);
863 if (!ctx->journal_name) {
864 com_err(ctx->program_name, 0,
865 _("Unable to resolve '%s'"),
866 optarg);
867 fatal_error(ctx, 0);
868 }
869 break;
870 case 'P':
871 res = sscanf(optarg, "%d", &ctx->process_inode_size);
872 if (res != 1)
873 goto sscanf_err;
874 break;
875 case 'L':
876 replace_bad_blocks++;
877 case 'l':
878 if (bad_blocks_file)
879 free(bad_blocks_file);
880 bad_blocks_file = string_copy(ctx, optarg, 0);
881 break;
882 case 'd':
883 ctx->options |= E2F_OPT_DEBUG;
884 break;
885 case 'f':
886 ctx->options |= E2F_OPT_FORCE;
887 break;
888 case 'F':
889 flush = 1;
890 break;
891 case 'v':
892 verbose = 1;
893 break;
894 case 'V':
895 show_version_only = 1;
896 break;
897 #ifdef MTRACE
898 case 'M':
899 mallwatch = (void *) strtol(optarg, NULL, 0);
900 break;
901 #endif
902 case 'N':
903 ctx->device_name = string_copy(ctx, optarg, 0);
904 break;
905 case 'k':
906 keep_bad_blocks++;
907 break;
908 default:
909 usage(ctx);
910 }
911 if (show_version_only)
912 return 0;
913 if (optind != argc - 1)
914 usage(ctx);
915 if ((ctx->options & E2F_OPT_NO) &&
916 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
917 com_err(ctx->program_name, 0, "%s",
918 _("The -n and -D options are incompatible."));
919 fatal_error(ctx, 0);
920 }
921 if ((ctx->options & E2F_OPT_NO) && cflag) {
922 com_err(ctx->program_name, 0, "%s",
923 _("The -n and -c options are incompatible."));
924 fatal_error(ctx, 0);
925 }
926 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
927 com_err(ctx->program_name, 0, "%s",
928 _("The -n and -l/-L options are incompatible."));
929 fatal_error(ctx, 0);
930 }
931 if (ctx->options & E2F_OPT_NO)
932 ctx->options |= E2F_OPT_READONLY;
933
934 ctx->io_options = strchr(argv[optind], '?');
935 if (ctx->io_options)
936 *ctx->io_options++ = 0;
937 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
938 if (!ctx->filesystem_name) {
939 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
940 argv[optind]);
941 fatal_error(ctx, 0);
942 }
943 if (extended_opts)
944 parse_extended_opts(ctx, extended_opts);
945
946 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
947 config_fn[0] = cp;
948 profile_set_syntax_err_cb(syntax_err_report);
949 profile_init(config_fn, &ctx->profile);
950
951 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
952 &c);
953 if (c)
954 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
955 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
956 &c);
957 if (c)
958 verbose = 1;
959
960 /* Turn off discard in read-only mode */
961 if ((ctx->options & E2F_OPT_NO) &&
962 (ctx->options & E2F_OPT_DISCARD))
963 ctx->options &= ~E2F_OPT_DISCARD;
964
965 if (flush) {
966 fd = open(ctx->filesystem_name, O_RDONLY, 0);
967 if (fd < 0) {
968 com_err("open", errno,
969 _("while opening %s for flushing"),
970 ctx->filesystem_name);
971 fatal_error(ctx, 0);
972 }
973 if ((retval = ext2fs_sync_device(fd, 1))) {
974 com_err("ext2fs_sync_device", retval,
975 _("while trying to flush %s"),
976 ctx->filesystem_name);
977 fatal_error(ctx, 0);
978 }
979 close(fd);
980 }
981 if (cflag && bad_blocks_file) {
982 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
983 "be both used at the same time.\n"));
984 exit(FSCK_USAGE);
985 }
986 #ifdef HAVE_SIGNAL_H
987 /*
988 * Set up signal action
989 */
990 memset(&sa, 0, sizeof(struct sigaction));
991 sa.sa_handler = signal_cancel;
992 sigaction(SIGINT, &sa, 0);
993 sigaction(SIGTERM, &sa, 0);
994 #ifdef SA_RESTART
995 sa.sa_flags = SA_RESTART;
996 #endif
997 sa.sa_handler = signal_progress_on;
998 sigaction(SIGUSR1, &sa, 0);
999 sa.sa_handler = signal_progress_off;
1000 sigaction(SIGUSR2, &sa, 0);
1001 #endif
1002
1003 /* Update our PATH to include /sbin if we need to run badblocks */
1004 if (cflag) {
1005 char *oldpath = getenv("PATH");
1006 char *newpath;
1007 int len = sizeof(PATH_SET) + 1;
1008
1009 if (oldpath)
1010 len += strlen(oldpath);
1011
1012 newpath = malloc(len);
1013 if (!newpath)
1014 fatal_error(ctx, "Couldn't malloc() newpath");
1015 strcpy(newpath, PATH_SET);
1016
1017 if (oldpath) {
1018 strcat(newpath, ":");
1019 strcat(newpath, oldpath);
1020 }
1021 putenv(newpath);
1022 }
1023 #ifdef CONFIG_JBD_DEBUG
1024 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1025 if (jbd_debug) {
1026 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1027 if (res != 1) {
1028 fprintf(stderr,
1029 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1030 jbd_debug);
1031 exit (1);
1032 }
1033 }
1034 #endif
1035 return 0;
1036
1037 sscanf_err:
1038 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1039 c, optarg);
1040 exit (1);
1041 }
1042
1043 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1044 ext2_filsys *ret_fs)
1045 {
1046 errcode_t retval;
1047
1048 *ret_fs = NULL;
1049 if (ctx->superblock && ctx->blocksize) {
1050 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1051 flags, ctx->superblock, ctx->blocksize,
1052 io_ptr, ret_fs);
1053 } else if (ctx->superblock) {
1054 int blocksize;
1055 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1056 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1057 if (*ret_fs) {
1058 ext2fs_free(*ret_fs);
1059 *ret_fs = NULL;
1060 }
1061 retval = ext2fs_open2(ctx->filesystem_name,
1062 ctx->io_options, flags,
1063 ctx->superblock, blocksize,
1064 io_ptr, ret_fs);
1065 if (!retval)
1066 break;
1067 }
1068 } else
1069 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1070 flags, 0, 0, io_ptr, ret_fs);
1071
1072 if (retval == 0) {
1073 (*ret_fs)->priv_data = ctx;
1074 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1075 "default", NULL);
1076 }
1077 return retval;
1078 }
1079
1080 static const char *my_ver_string = E2FSPROGS_VERSION;
1081 static const char *my_ver_date = E2FSPROGS_DATE;
1082
1083 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1084 {
1085 struct mmp_struct *mmp_s;
1086 unsigned int mmp_check_interval;
1087 errcode_t retval = 0;
1088 struct problem_context pctx;
1089 unsigned int wait_time = 0;
1090
1091 clear_problem_context(&pctx);
1092 if (fs->mmp_buf == NULL) {
1093 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1094 if (retval)
1095 goto check_error;
1096 }
1097
1098 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1099 if (retval)
1100 goto check_error;
1101
1102 mmp_s = fs->mmp_buf;
1103
1104 mmp_check_interval = fs->super->s_mmp_update_interval;
1105 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1106 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1107
1108 /*
1109 * If check_interval in MMP block is larger, use that instead of
1110 * check_interval from the superblock.
1111 */
1112 if (mmp_s->mmp_check_interval > mmp_check_interval)
1113 mmp_check_interval = mmp_s->mmp_check_interval;
1114
1115 wait_time = mmp_check_interval * 2 + 1;
1116
1117 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1118 retval = 0;
1119 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1120 retval = EXT2_ET_MMP_FSCK_ON;
1121 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1122 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1123
1124 if (retval)
1125 goto check_error;
1126
1127 /* Print warning if e2fck will wait for more than 20 secs. */
1128 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1129 log_out(ctx, _("MMP interval is %u seconds and total wait "
1130 "time is %u seconds. Please wait...\n"),
1131 mmp_check_interval, wait_time * 2);
1132 }
1133
1134 return 0;
1135
1136 check_error:
1137
1138 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1139 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1140 fs->super->s_mmp_block = 0;
1141 ext2fs_mark_super_dirty(fs);
1142 retval = 0;
1143 }
1144 } else if (retval == EXT2_ET_MMP_FAILED) {
1145 com_err(ctx->program_name, retval, "%s",
1146 _("while checking MMP block"));
1147 dump_mmp_msg(fs->mmp_buf, NULL);
1148 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1149 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1150 com_err(ctx->program_name, retval, "%s",
1151 _("while checking MMP block"));
1152 dump_mmp_msg(fs->mmp_buf,
1153 _("If you are sure the filesystem is not "
1154 "in use on any node, run:\n"
1155 "'tune2fs -f -E clear_mmp {device}'\n"));
1156 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1157 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1158 ext2fs_mmp_clear(fs);
1159 retval = 0;
1160 }
1161 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1162 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1163 ext2fs_mmp_clear(fs);
1164 retval = 0;
1165 }
1166 }
1167 return retval;
1168 }
1169
1170 int main (int argc, char *argv[])
1171 {
1172 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1173 int exit_value = FSCK_OK;
1174 ext2_filsys fs = 0;
1175 io_manager io_ptr;
1176 struct ext2_super_block *sb;
1177 const char *lib_ver_date;
1178 int my_ver, lib_ver;
1179 e2fsck_t ctx;
1180 blk64_t orig_superblock;
1181 struct problem_context pctx;
1182 int flags, run_result;
1183 int journal_size;
1184 int sysval, sys_page_size = 4096;
1185 int old_bitmaps;
1186 __u32 features[3];
1187 char *cp;
1188 int qtype = -99; /* quota type */
1189
1190 clear_problem_context(&pctx);
1191 sigcatcher_setup();
1192 #ifdef MTRACE
1193 mtrace();
1194 #endif
1195 #ifdef MCHECK
1196 mcheck(0);
1197 #endif
1198 #ifdef ENABLE_NLS
1199 setlocale(LC_MESSAGES, "");
1200 setlocale(LC_CTYPE, "");
1201 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1202 textdomain(NLS_CAT_NAME);
1203 set_com_err_gettext(gettext);
1204 #endif
1205 my_ver = ext2fs_parse_version_string(my_ver_string);
1206 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1207 if (my_ver > lib_ver) {
1208 fprintf( stderr, "%s",
1209 _("Error: ext2fs library version out of date!\n"));
1210 show_version_only++;
1211 }
1212
1213 retval = PRS(argc, argv, &ctx);
1214 if (retval) {
1215 com_err("e2fsck", retval, "%s",
1216 _("while trying to initialize program"));
1217 exit(FSCK_ERROR);
1218 }
1219 reserve_stdio_fds();
1220
1221 set_up_logging(ctx);
1222 if (ctx->logf) {
1223 int i;
1224 fputs("E2fsck run: ", ctx->logf);
1225 for (i = 0; i < argc; i++) {
1226 if (i)
1227 fputc(' ', ctx->logf);
1228 fputs(argv[i], ctx->logf);
1229 }
1230 fputc('\n', ctx->logf);
1231 }
1232
1233 init_resource_track(&ctx->global_rtrack, NULL);
1234 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1235 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1236 my_ver_date);
1237
1238 if (show_version_only) {
1239 log_err(ctx, _("\tUsing %s, %s\n"),
1240 error_message(EXT2_ET_BASE), lib_ver_date);
1241 exit(FSCK_OK);
1242 }
1243
1244 check_mount(ctx);
1245
1246 if (!(ctx->options & E2F_OPT_PREEN) &&
1247 !(ctx->options & E2F_OPT_NO) &&
1248 !(ctx->options & E2F_OPT_YES)) {
1249 if (!ctx->interactive)
1250 fatal_error(ctx,
1251 _("need terminal for interactive repairs"));
1252 }
1253 ctx->superblock = ctx->use_superblock;
1254
1255 flags = EXT2_FLAG_SKIP_MMP;
1256 restart:
1257 #ifdef CONFIG_TESTIO_DEBUG
1258 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1259 io_ptr = test_io_manager;
1260 test_io_backing_manager = unix_io_manager;
1261 } else
1262 #endif
1263 io_ptr = unix_io_manager;
1264 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1265 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1266 &old_bitmaps);
1267 if (!old_bitmaps)
1268 flags |= EXT2_FLAG_64BITS;
1269 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1270 flags |= EXT2_FLAG_RW;
1271 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1272 ctx->mount_flags & EXT2_MF_READONLY))
1273 flags |= EXT2_FLAG_EXCLUSIVE;
1274 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1275 (ctx->options & E2F_OPT_FORCE))
1276 flags &= ~EXT2_FLAG_EXCLUSIVE;
1277 }
1278
1279 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1280
1281 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1282 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1283 ((retval == EXT2_ET_BAD_MAGIC) ||
1284 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1285 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1286 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1287 if (retval) {
1288 pctx.errcode = retval;
1289 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1290 }
1291 if (retval2) {
1292 pctx.errcode = retval2;
1293 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1294 }
1295 pctx.errcode = 0;
1296 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1297 retval = retval2;
1298 goto failure;
1299 }
1300 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1301 ext2fs_free(fs);
1302 fs = NULL;
1303 }
1304 if (!fs || (fs->group_desc_count > 1)) {
1305 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1306 ctx->program_name,
1307 retval ? _("Superblock invalid,") :
1308 _("Group descriptors look bad..."));
1309 orig_superblock = ctx->superblock;
1310 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1311 if (fs)
1312 ext2fs_close(fs);
1313 orig_retval = retval;
1314 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1315 if ((orig_retval == 0) && retval != 0) {
1316 if (fs)
1317 ext2fs_close(fs);
1318 log_out(ctx, _("%s: %s while using the "
1319 "backup blocks"),
1320 ctx->program_name,
1321 error_message(retval));
1322 log_out(ctx, _("%s: going back to original "
1323 "superblock\n"),
1324 ctx->program_name);
1325 ctx->superblock = orig_superblock;
1326 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1327 }
1328 }
1329 }
1330 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1331 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1332 fs && fs->super) {
1333 sb = fs->super;
1334 features[0] = (sb->s_feature_compat &
1335 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1336 features[1] = (sb->s_feature_incompat &
1337 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1338 features[2] = (sb->s_feature_ro_compat &
1339 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1340 if (features[0] || features[1] || features[2])
1341 goto print_unsupp_features;
1342 }
1343 failure:
1344 if (retval) {
1345 if (orig_retval)
1346 retval = orig_retval;
1347 com_err(ctx->program_name, retval, _("while trying to open %s"),
1348 ctx->filesystem_name);
1349 if (retval == EXT2_ET_REV_TOO_HIGH) {
1350 log_out(ctx, "%s",
1351 _("The filesystem revision is apparently "
1352 "too high for this version of e2fsck.\n"
1353 "(Or the filesystem superblock "
1354 "is corrupt)\n\n"));
1355 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1356 } else if (retval == EXT2_ET_SHORT_READ)
1357 log_out(ctx, "%s",
1358 _("Could this be a zero-length partition?\n"));
1359 else if ((retval == EPERM) || (retval == EACCES))
1360 log_out(ctx, _("You must have %s access to the "
1361 "filesystem or be root\n"),
1362 (ctx->options & E2F_OPT_READONLY) ?
1363 "r/o" : "r/w");
1364 else if (retval == ENXIO)
1365 log_out(ctx, "%s",
1366 _("Possibly non-existent or swap device?\n"));
1367 else if (retval == EBUSY)
1368 log_out(ctx, "%s", _("Filesystem mounted or opened "
1369 "exclusively by another program?\n"));
1370 else if (retval == ENOENT)
1371 log_out(ctx, "%s",
1372 _("Possibly non-existent device?\n"));
1373 #ifdef EROFS
1374 else if (retval == EROFS)
1375 log_out(ctx, "%s", _("Disk write-protected; use the "
1376 "-n option to do a read-only\n"
1377 "check of the device.\n"));
1378 #endif
1379 else
1380 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1381 fatal_error(ctx, 0);
1382 }
1383 /*
1384 * We only update the master superblock because (a) paranoia;
1385 * we don't want to corrupt the backup superblocks, and (b) we
1386 * don't need to update the mount count and last checked
1387 * fields in the backup superblock (the kernel doesn't update
1388 * the backup superblocks anyway). With newer versions of the
1389 * library this flag is set by ext2fs_open2(), but we set this
1390 * here just to be sure. (No, we don't support e2fsck running
1391 * with some other libext2fs than the one that it was shipped
1392 * with, but just in case....)
1393 */
1394 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1395
1396 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1397 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1398 int need_restart = 0;
1399
1400 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1401 blocksize,
1402 &ctx->num_blocks);
1403 /*
1404 * The floppy driver refuses to allow anyone else to
1405 * open the device if has been opened with O_EXCL;
1406 * this is unlike other block device drivers in Linux.
1407 * To handle this, we close the filesystem and then
1408 * reopen the filesystem after we get the device size.
1409 */
1410 if (pctx.errcode == EBUSY) {
1411 ext2fs_close(fs);
1412 need_restart++;
1413 pctx.errcode =
1414 ext2fs_get_device_size2(ctx->filesystem_name,
1415 blocksize,
1416 &ctx->num_blocks);
1417 }
1418 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1419 ctx->num_blocks = 0;
1420 else if (pctx.errcode) {
1421 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1422 ctx->flags |= E2F_FLAG_ABORT;
1423 fatal_error(ctx, 0);
1424 }
1425 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1426 if (need_restart)
1427 goto restart;
1428 }
1429
1430 ctx->fs = fs;
1431 fs->now = ctx->now;
1432 sb = fs->super;
1433
1434 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1435 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1436 _("while trying to open %s"),
1437 ctx->filesystem_name);
1438 get_newer:
1439 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1440 }
1441
1442 /*
1443 * Set the device name, which is used whenever we print error
1444 * or informational messages to the user.
1445 */
1446 if (ctx->device_name == 0 &&
1447 (sb->s_volume_name[0] != 0)) {
1448 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1449 sizeof(sb->s_volume_name));
1450 }
1451 if (ctx->device_name == 0)
1452 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1453 for (cp = ctx->device_name; *cp; cp++)
1454 if (isspace(*cp) || *cp == ':')
1455 *cp = '_';
1456
1457 ehandler_init(fs->io);
1458
1459 if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) &&
1460 (flags & EXT2_FLAG_SKIP_MMP)) {
1461 if (e2fsck_check_mmp(fs, ctx))
1462 fatal_error(ctx, 0);
1463
1464 /*
1465 * Restart in order to reopen fs but this time start mmp.
1466 */
1467 ext2fs_close(fs);
1468 ctx->fs = NULL;
1469 flags &= ~EXT2_FLAG_SKIP_MMP;
1470 goto restart;
1471 }
1472
1473 if (ctx->logf)
1474 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1475 e2p_uuid2str(sb->s_uuid));
1476
1477 /*
1478 * Make sure the ext3 superblock fields are consistent.
1479 */
1480 retval = e2fsck_check_ext3_journal(ctx);
1481 if (retval) {
1482 com_err(ctx->program_name, retval,
1483 _("while checking ext3 journal for %s"),
1484 ctx->device_name);
1485 fatal_error(ctx, 0);
1486 }
1487
1488 /*
1489 * Check to see if we need to do ext3-style recovery. If so,
1490 * do it, and then restart the fsck.
1491 */
1492 if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
1493 if (ctx->options & E2F_OPT_READONLY) {
1494 log_out(ctx, "%s",
1495 _("Warning: skipping journal recovery because "
1496 "doing a read-only filesystem check.\n"));
1497 io_channel_flush(ctx->fs->io);
1498 } else {
1499 if (ctx->flags & E2F_FLAG_RESTARTED) {
1500 /*
1501 * Whoops, we attempted to run the
1502 * journal twice. This should never
1503 * happen, unless the hardware or
1504 * device driver is being bogus.
1505 */
1506 com_err(ctx->program_name, 0,
1507 _("unable to set superblock flags "
1508 "on %s\n"), ctx->device_name);
1509 fatal_error(ctx, 0);
1510 }
1511 retval = e2fsck_run_ext3_journal(ctx);
1512 if (retval) {
1513 com_err(ctx->program_name, retval,
1514 _("while recovering ext3 journal of %s"),
1515 ctx->device_name);
1516 fatal_error(ctx, 0);
1517 }
1518 ext2fs_close(ctx->fs);
1519 ctx->fs = 0;
1520 ctx->flags |= E2F_FLAG_RESTARTED;
1521 goto restart;
1522 }
1523 }
1524
1525 /*
1526 * Check for compatibility with the feature sets. We need to
1527 * be more stringent than ext2fs_open().
1528 */
1529 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1530 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1531 features[2] = (sb->s_feature_ro_compat &
1532 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1533 print_unsupp_features:
1534 if (features[0] || features[1] || features[2]) {
1535 int i, j;
1536 __u32 *mask = features, m;
1537
1538 log_err(ctx, _("%s has unsupported feature(s):"),
1539 ctx->filesystem_name);
1540
1541 for (i=0; i <3; i++,mask++) {
1542 for (j=0,m=1; j < 32; j++, m<<=1) {
1543 if (*mask & m)
1544 log_err(ctx, " %s",
1545 e2p_feature2string(i, m));
1546 }
1547 }
1548 log_err(ctx, "\n");
1549 goto get_newer;
1550 }
1551 #ifdef ENABLE_COMPRESSION
1552 if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
1553 log_err(ctx, _("%s: warning: compression support "
1554 "is experimental.\n"),
1555 ctx->program_name);
1556 #endif
1557 #ifndef ENABLE_HTREE
1558 if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
1559 log_err(ctx, _("%s: e2fsck not compiled with HTREE support,\n\t"
1560 "but filesystem %s has HTREE directories.\n"),
1561 ctx->program_name, ctx->device_name);
1562 goto get_newer;
1563 }
1564 #endif
1565
1566 /*
1567 * If the user specified a specific superblock, presumably the
1568 * master superblock has been trashed. So we mark the
1569 * superblock as dirty, so it can be written out.
1570 */
1571 if (ctx->superblock &&
1572 !(ctx->options & E2F_OPT_READONLY))
1573 ext2fs_mark_super_dirty(fs);
1574
1575 /*
1576 * Calculate the number of filesystem blocks per pagesize. If
1577 * fs->blocksize > page_size, set the number of blocks per
1578 * pagesize to 1 to avoid division by zero errors.
1579 */
1580 #ifdef _SC_PAGESIZE
1581 sysval = sysconf(_SC_PAGESIZE);
1582 if (sysval > 0)
1583 sys_page_size = sysval;
1584 #endif /* _SC_PAGESIZE */
1585 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1586 if (ctx->blocks_per_page == 0)
1587 ctx->blocks_per_page = 1;
1588
1589 if (ctx->superblock)
1590 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1591 ext2fs_mark_valid(fs);
1592 check_super_block(ctx);
1593 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1594 fatal_error(ctx, 0);
1595 check_if_skip(ctx);
1596 check_resize_inode(ctx);
1597 if (bad_blocks_file)
1598 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1599 else if (cflag)
1600 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1601 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1602 fatal_error(ctx, 0);
1603
1604 /*
1605 * Mark the system as valid, 'til proven otherwise
1606 */
1607 ext2fs_mark_valid(fs);
1608
1609 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1610 if (retval) {
1611 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1612 ctx->program_name, error_message(retval));
1613 preenhalt(ctx);
1614 log_out(ctx, "%s", _("This doesn't bode well, "
1615 "but we'll try to go on...\n"));
1616 }
1617
1618 /*
1619 * Save the journal size in megabytes.
1620 * Try and use the journal size from the backup else let e2fsck
1621 * find the default journal size.
1622 */
1623 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1624 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1625 (sb->s_jnl_blocks[16] >> 20);
1626 else
1627 journal_size = -1;
1628
1629 if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA) {
1630 /* Quotas were enabled. Do quota accounting during fsck. */
1631 if ((sb->s_usr_quota_inum && sb->s_grp_quota_inum) ||
1632 (!sb->s_usr_quota_inum && !sb->s_grp_quota_inum))
1633 qtype = -1;
1634 else
1635 qtype = sb->s_usr_quota_inum ? USRQUOTA : GRPQUOTA;
1636
1637 quota_init_context(&ctx->qctx, ctx->fs, qtype);
1638 }
1639
1640 run_result = e2fsck_run(ctx);
1641 e2fsck_clear_progbar(ctx);
1642
1643 if (ctx->flags & E2F_FLAG_JOURNAL_INODE) {
1644 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1645 if (journal_size < 1024)
1646 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1647 if (journal_size < 0) {
1648 fs->super->s_feature_compat &=
1649 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1650 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1651 log_out(ctx, "%s: Couldn't determine "
1652 "journal size\n", ctx->program_name);
1653 goto no_journal;
1654 }
1655 log_out(ctx, _("Creating journal (%d blocks): "),
1656 journal_size);
1657 fflush(stdout);
1658 retval = ext2fs_add_journal_inode(fs,
1659 journal_size, 0);
1660 if (retval) {
1661 log_out(ctx, "%s: while trying to create "
1662 "journal\n", error_message(retval));
1663 goto no_journal;
1664 }
1665 log_out(ctx, "%s", _(" Done.\n"));
1666 log_out(ctx, "%s",
1667 _("\n*** journal has been re-created - "
1668 "filesystem is now ext3 again ***\n"));
1669 }
1670 }
1671 no_journal:
1672
1673 if (ctx->qctx) {
1674 int i, needs_writeout;
1675 for (i = 0; i < MAXQUOTAS; i++) {
1676 if (qtype != -1 && qtype != i)
1677 continue;
1678 needs_writeout = 0;
1679 pctx.num = i;
1680 retval = quota_compare_and_update(ctx->qctx, i,
1681 &needs_writeout);
1682 if ((retval || needs_writeout) &&
1683 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx))
1684 quota_write_inode(ctx->qctx, i);
1685 }
1686 quota_release_context(&ctx->qctx);
1687 }
1688
1689 if (run_result == E2F_FLAG_RESTART) {
1690 log_out(ctx, "%s",
1691 _("Restarting e2fsck from the beginning...\n"));
1692 retval = e2fsck_reset_context(ctx);
1693 if (retval) {
1694 com_err(ctx->program_name, retval, "%s",
1695 _("while resetting context"));
1696 fatal_error(ctx, 0);
1697 }
1698 ext2fs_close(fs);
1699 goto restart;
1700 }
1701 if (run_result & E2F_FLAG_CANCEL) {
1702 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1703 ctx->device_name : ctx->filesystem_name);
1704 exit_value |= FSCK_CANCELED;
1705 }
1706 if (run_result & E2F_FLAG_ABORT)
1707 fatal_error(ctx, _("aborted"));
1708 if (check_backup_super_block(ctx)) {
1709 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1710 ext2fs_mark_super_dirty(fs);
1711 }
1712
1713 #ifdef MTRACE
1714 mtrace_print("Cleanup");
1715 #endif
1716 if (ext2fs_test_changed(fs)) {
1717 exit_value |= FSCK_NONDESTRUCT;
1718 if (!(ctx->options & E2F_OPT_PREEN))
1719 log_out(ctx, _("\n%s: ***** FILE SYSTEM WAS "
1720 "MODIFIED *****\n"),
1721 ctx->device_name);
1722 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1723 log_out(ctx, _("%s: ***** REBOOT LINUX *****\n"),
1724 ctx->device_name);
1725 exit_value |= FSCK_REBOOT;
1726 }
1727 }
1728 if (!ext2fs_test_valid(fs) ||
1729 ((exit_value & FSCK_CANCELED) &&
1730 (sb->s_state & EXT2_ERROR_FS))) {
1731 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
1732 "errors **********\n\n"), ctx->device_name);
1733 exit_value |= FSCK_UNCORRECTED;
1734 exit_value &= ~FSCK_NONDESTRUCT;
1735 }
1736 if (exit_value & FSCK_CANCELED) {
1737 int allow_cancellation;
1738
1739 profile_get_boolean(ctx->profile, "options",
1740 "allow_cancellation", 0, 0,
1741 &allow_cancellation);
1742 exit_value &= ~FSCK_NONDESTRUCT;
1743 if (allow_cancellation && ext2fs_test_valid(fs) &&
1744 (sb->s_state & EXT2_VALID_FS) &&
1745 !(sb->s_state & EXT2_ERROR_FS))
1746 exit_value = 0;
1747 } else {
1748 show_stats(ctx);
1749 if (!(ctx->options & E2F_OPT_READONLY)) {
1750 if (ext2fs_test_valid(fs)) {
1751 if (!(sb->s_state & EXT2_VALID_FS))
1752 exit_value |= FSCK_NONDESTRUCT;
1753 sb->s_state = EXT2_VALID_FS;
1754 } else
1755 sb->s_state &= ~EXT2_VALID_FS;
1756 sb->s_mnt_count = 0;
1757 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1758 sb->s_lastcheck = ctx->now;
1759 memset(((char *) sb) + EXT4_S_ERR_START, 0,
1760 EXT4_S_ERR_LEN);
1761 ext2fs_mark_super_dirty(fs);
1762 }
1763 }
1764
1765 if ((run_result & E2F_FLAG_CANCEL) == 0 &&
1766 ext2fs_has_group_desc_csum(ctx->fs) &&
1767 !(ctx->options & E2F_OPT_READONLY)) {
1768 retval = ext2fs_set_gdt_csum(ctx->fs);
1769 if (retval) {
1770 com_err(ctx->program_name, retval, "%s",
1771 _("while setting block group checksum info"));
1772 fatal_error(ctx, 0);
1773 }
1774 }
1775
1776 e2fsck_write_bitmaps(ctx);
1777 io_channel_flush(ctx->fs->io);
1778 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
1779
1780 ext2fs_close(fs);
1781 ctx->fs = NULL;
1782 free(ctx->journal_name);
1783
1784 e2fsck_free_context(ctx);
1785 remove_error_table(&et_ext2_error_table);
1786 remove_error_table(&et_prof_error_table);
1787 return exit_value;
1788 }
Unnamed repository; edit this file 'description' to name the repository.