1 /*
2 * unix.c - The unix-specific code for e2fsck
3 *
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 */
11
12 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
13
14 #include "config.h"
15 #include <stdio.h>
16 #ifdef HAVE_STDLIB_H
17 #include <stdlib.h>
18 #endif
19 #include <string.h>
20 #include <fcntl.h>
21 #include <ctype.h>
22 #include <time.h>
23 #ifdef HAVE_SIGNAL_H
24 #include <signal.h>
25 #endif
26 #ifdef HAVE_GETOPT_H
27 #include <getopt.h>
28 #else
29 extern char *optarg;
30 extern int optind;
31 #endif
32 #include <unistd.h>
33 #ifdef HAVE_ERRNO_H
34 #include <errno.h>
35 #endif
36 #ifdef HAVE_SYS_IOCTL_H
37 #include <sys/ioctl.h>
38 #endif
39 #ifdef HAVE_MALLOC_H
40 #include <malloc.h>
41 #endif
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
44 #endif
45 #ifdef HAVE_DIRENT_H
46 #include <dirent.h>
47 #endif
48 #include <libgen.h>
49
50 #include "e2p/e2p.h"
51 #include "et/com_err.h"
52 #include "e2p/e2p.h"
53 #include "support/plausible.h"
54 #include "e2fsck.h"
55 #include "problem.h"
56 #include "jfs_user.h"
57 #include "../version.h"
58
59 /* Command line options */
60 static int cflag; /* check disk */
61 static int show_version_only;
62 static int verbose;
63
64 static int replace_bad_blocks;
65 static int keep_bad_blocks;
66 static char *bad_blocks_file;
67
68 e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
69
70 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
71 int journal_enable_debug = -1;
72 #endif
73
usage(e2fsck_t ctx)74 static void usage(e2fsck_t ctx)
75 {
76 fprintf(stderr,
77 _("Usage: %s [-panyrcdfktvDFV] [-b superblock] [-B blocksize]\n"
78 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
79 "\t\t[-E extended-options] [-z undo_file] device\n"),
80 ctx->program_name);
81
82 fprintf(stderr, "%s", _("\nEmergency help:\n"
83 " -p Automatic repair (no questions)\n"
84 " -n Make no changes to the filesystem\n"
85 " -y Assume \"yes\" to all questions\n"
86 " -c Check for bad blocks and add them to the badblock list\n"
87 " -f Force checking even if filesystem is marked clean\n"));
88 fprintf(stderr, "%s", _(""
89 " -v Be verbose\n"
90 " -b superblock Use alternative superblock\n"
91 " -B blocksize Force blocksize when looking for superblock\n"
92 " -j external_journal Set location of the external journal\n"
93 " -l bad_blocks_file Add to badblocks list\n"
94 " -L bad_blocks_file Set badblocks list\n"
95 " -z undo_file Create an undo file\n"
96 ));
97
98 exit(FSCK_USAGE);
99 }
100
show_stats(e2fsck_t ctx)101 static void show_stats(e2fsck_t ctx)
102 {
103 ext2_filsys fs = ctx->fs;
104 ext2_ino_t inodes, inodes_used;
105 blk64_t blocks, blocks_used;
106 unsigned int dir_links;
107 unsigned int num_files, num_links;
108 __u32 *mask, m;
109 int frag_percent_file = 0, frag_percent_dir = 0, frag_percent_total = 0;
110 int i, j, printed = 0;
111
112 dir_links = 2 * ctx->fs_directory_count - 1;
113 num_files = ctx->fs_total_count - dir_links;
114 num_links = ctx->fs_links_count - dir_links;
115 inodes = fs->super->s_inodes_count;
116 inodes_used = (fs->super->s_inodes_count -
117 fs->super->s_free_inodes_count);
118 blocks = ext2fs_blocks_count(fs->super);
119 blocks_used = (ext2fs_blocks_count(fs->super) -
120 ext2fs_free_blocks_count(fs->super));
121
122 if (inodes_used > 0) {
123 frag_percent_file = (10000 * ctx->fs_fragmented) / inodes_used;
124 frag_percent_file = (frag_percent_file + 5) / 10;
125
126 frag_percent_dir = (10000 * ctx->fs_fragmented_dir) / inodes_used;
127 frag_percent_dir = (frag_percent_dir + 5) / 10;
128
129 frag_percent_total = ((10000 * (ctx->fs_fragmented +
130 ctx->fs_fragmented_dir))
131 / inodes_used);
132 frag_percent_total = (frag_percent_total + 5) / 10;
133 }
134
135 if (!verbose) {
136 log_out(ctx, _("%s: %u/%u files (%0d.%d%% non-contiguous), "
137 "%llu/%llu blocks\n"),
138 ctx->device_name, inodes_used, inodes,
139 frag_percent_total / 10, frag_percent_total % 10,
140 blocks_used, blocks);
141 return;
142 }
143 profile_get_boolean(ctx->profile, "options", "report_features", 0, 0,
144 &i);
145 if (verbose && i) {
146 log_out(ctx, "\nFilesystem features:");
147 mask = &ctx->fs->super->s_feature_compat;
148 for (i = 0; i < 3; i++, mask++) {
149 for (j = 0, m = 1; j < 32; j++, m <<= 1) {
150 if (*mask & m) {
151 log_out(ctx, " %s",
152 e2p_feature2string(i, m));
153 printed++;
154 }
155 }
156 }
157 if (printed == 0)
158 log_out(ctx, " (none)");
159 log_out(ctx, "\n");
160 }
161
162 log_out(ctx, P_("\n%12u inode used (%2.2f%%, out of %u)\n",
163 "\n%12u inodes used (%2.2f%%, out of %u)\n",
164 inodes_used), inodes_used,
165 100.0 * inodes_used / inodes, inodes);
166 log_out(ctx, P_("%12u non-contiguous file (%0d.%d%%)\n",
167 "%12u non-contiguous files (%0d.%d%%)\n",
168 ctx->fs_fragmented),
169 ctx->fs_fragmented, frag_percent_file / 10,
170 frag_percent_file % 10);
171 log_out(ctx, P_("%12u non-contiguous directory (%0d.%d%%)\n",
172 "%12u non-contiguous directories (%0d.%d%%)\n",
173 ctx->fs_fragmented_dir),
174 ctx->fs_fragmented_dir, frag_percent_dir / 10,
175 frag_percent_dir % 10);
176 log_out(ctx, _(" # of inodes with ind/dind/tind blocks: "
177 "%u/%u/%u\n"),
178 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
179
180 for (j=MAX_EXTENT_DEPTH_COUNT-1; j >=0; j--)
181 if (ctx->extent_depth_count[j])
182 break;
183 if (++j) {
184 log_out(ctx, "%s", _(" Extent depth histogram: "));
185 for (i=0; i < j; i++) {
186 if (i)
187 fputc('/', stdout);
188 log_out(ctx, "%u", ctx->extent_depth_count[i]);
189 }
190 log_out(ctx, "\n");
191 }
192
193 log_out(ctx, P_("%12llu block used (%2.2f%%, out of %llu)\n",
194 "%12llu blocks used (%2.2f%%, out of %llu)\n",
195 blocks_used),
196 blocks_used, 100.0 * blocks_used / blocks, blocks);
197 log_out(ctx, P_("%12u bad block\n", "%12u bad blocks\n",
198 ctx->fs_badblocks_count), ctx->fs_badblocks_count);
199 log_out(ctx, P_("%12u large file\n", "%12u large files\n",
200 ctx->large_files), ctx->large_files);
201 log_out(ctx, P_("\n%12u regular file\n", "\n%12u regular files\n",
202 ctx->fs_regular_count), ctx->fs_regular_count);
203 log_out(ctx, P_("%12u directory\n", "%12u directories\n",
204 ctx->fs_directory_count), ctx->fs_directory_count);
205 log_out(ctx, P_("%12u character device file\n",
206 "%12u character device files\n", ctx->fs_chardev_count),
207 ctx->fs_chardev_count);
208 log_out(ctx, P_("%12u block device file\n", "%12u block device files\n",
209 ctx->fs_blockdev_count), ctx->fs_blockdev_count);
210 log_out(ctx, P_("%12u fifo\n", "%12u fifos\n", ctx->fs_fifo_count),
211 ctx->fs_fifo_count);
212 log_out(ctx, P_("%12u link\n", "%12u links\n", num_links),
213 ctx->fs_links_count - dir_links);
214 log_out(ctx, P_("%12u symbolic link", "%12u symbolic links",
215 ctx->fs_symlinks_count), ctx->fs_symlinks_count);
216 log_out(ctx, P_(" (%u fast symbolic link)\n",
217 " (%u fast symbolic links)\n",
218 ctx->fs_fast_symlinks_count),
219 ctx->fs_fast_symlinks_count);
220 log_out(ctx, P_("%12u socket\n", "%12u sockets\n",
221 ctx->fs_sockets_count),
222 ctx->fs_sockets_count);
223 log_out(ctx, "------------\n");
224 log_out(ctx, P_("%12u file\n", "%12u files\n", num_files),
225 num_files);
226 }
227
check_mount(e2fsck_t ctx)228 static void check_mount(e2fsck_t ctx)
229 {
230 errcode_t retval;
231 int cont;
232
233 retval = ext2fs_check_if_mounted(ctx->filesystem_name,
234 &ctx->mount_flags);
235 if (retval) {
236 com_err("ext2fs_check_if_mount", retval,
237 _("while determining whether %s is mounted."),
238 ctx->filesystem_name);
239 return;
240 }
241
242 /*
243 * If the filesystem isn't mounted, or it's the root
244 * filesystem and it's mounted read-only, and we're not doing
245 * a read/write check, then everything's fine.
246 */
247 if ((!(ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY))) ||
248 ((ctx->mount_flags & EXT2_MF_ISROOT) &&
249 (ctx->mount_flags & EXT2_MF_READONLY) &&
250 !(ctx->options & E2F_OPT_WRITECHECK)))
251 return;
252
253 if (((ctx->options & E2F_OPT_READONLY) ||
254 ((ctx->options & E2F_OPT_FORCE) &&
255 (ctx->mount_flags & EXT2_MF_READONLY))) &&
256 !(ctx->options & E2F_OPT_WRITECHECK)) {
257 if (ctx->mount_flags & EXT2_MF_MOUNTED)
258 log_out(ctx, _("Warning! %s is mounted.\n"),
259 ctx->filesystem_name);
260 else
261 log_out(ctx, _("Warning! %s is in use.\n"),
262 ctx->filesystem_name);
263 return;
264 }
265
266 if (ctx->mount_flags & EXT2_MF_MOUNTED)
267 log_out(ctx, _("%s is mounted.\n"), ctx->filesystem_name);
268 else
269 log_out(ctx, _("%s is in use.\n"), ctx->filesystem_name);
270 if (!ctx->interactive || ctx->mount_flags & EXT2_MF_BUSY)
271 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
272 puts("\007\007\007\007");
273 log_out(ctx, "%s", _("\n\nWARNING!!! "
274 "The filesystem is mounted. "
275 "If you continue you ***WILL***\n"
276 "cause ***SEVERE*** filesystem damage.\n\n"));
277 puts("\007\007\007");
278 cont = ask_yn(ctx, _("Do you really want to continue"), 0);
279 if (!cont) {
280 printf("%s", _("check aborted.\n"));
281 exit (0);
282 }
283 return;
284 }
285
is_on_batt(void)286 static int is_on_batt(void)
287 {
288 FILE *f;
289 DIR *d;
290 char tmp[80], tmp2[80], fname[NAME_MAX+30];
291 unsigned int acflag;
292 struct dirent* de;
293
294 f = fopen("/sys/class/power_supply/AC/online", "r");
295 if (f) {
296 if (fscanf(f, "%u\n", &acflag) == 1) {
297 fclose(f);
298 return (!acflag);
299 }
300 fclose(f);
301 }
302 f = fopen("/proc/apm", "r");
303 if (f) {
304 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
305 acflag = 1;
306 fclose(f);
307 return (acflag != 1);
308 }
309 d = opendir("/proc/acpi/ac_adapter");
310 if (d) {
311 while ((de=readdir(d)) != NULL) {
312 if (!strncmp(".", de->d_name, 1))
313 continue;
314 snprintf(fname, sizeof(fname),
315 "/proc/acpi/ac_adapter/%s/state",
316 de->d_name);
317 f = fopen(fname, "r");
318 if (!f)
319 continue;
320 if (fscanf(f, "%s %s", tmp2, tmp) != 2)
321 tmp[0] = 0;
322 fclose(f);
323 if (strncmp(tmp, "off-line", 8) == 0) {
324 closedir(d);
325 return 1;
326 }
327 }
328 closedir(d);
329 }
330 return 0;
331 }
332
333 /*
334 * This routine checks to see if a filesystem can be skipped; if so,
335 * it will exit with E2FSCK_OK. Under some conditions it will print a
336 * message explaining why a check is being forced.
337 */
check_if_skip(e2fsck_t ctx)338 static void check_if_skip(e2fsck_t ctx)
339 {
340 ext2_filsys fs = ctx->fs;
341 struct problem_context pctx;
342 const char *reason = NULL;
343 unsigned int reason_arg = 0;
344 long next_check;
345 int batt = is_on_batt();
346 int defer_check_on_battery;
347 int broken_system_clock;
348 time_t lastcheck;
349
350 if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
351 return;
352
353 profile_get_boolean(ctx->profile, "options", "broken_system_clock",
354 0, 0, &broken_system_clock);
355 if (ctx->flags & E2F_FLAG_TIME_INSANE)
356 broken_system_clock = 1;
357 profile_get_boolean(ctx->profile, "options",
358 "defer_check_on_battery", 0, 1,
359 &defer_check_on_battery);
360 if (!defer_check_on_battery)
361 batt = 0;
362
363 if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
364 return;
365
366 if (ctx->options & E2F_OPT_JOURNAL_ONLY)
367 goto skip;
368
369 lastcheck = fs->super->s_lastcheck;
370 if (lastcheck > ctx->now)
371 lastcheck -= ctx->time_fudge;
372 if ((fs->super->s_state & EXT2_ERROR_FS) ||
373 !ext2fs_test_valid(fs))
374 reason = _(" contains a file system with errors");
375 else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
376 reason = _(" was not cleanly unmounted");
377 else if (check_backup_super_block(ctx))
378 reason = _(" primary superblock features different from backup");
379 else if ((fs->super->s_max_mnt_count > 0) &&
380 (fs->super->s_mnt_count >=
381 (unsigned) fs->super->s_max_mnt_count)) {
382 reason = _(" has been mounted %u times without being checked");
383 reason_arg = fs->super->s_mnt_count;
384 if (batt && (fs->super->s_mnt_count <
385 (unsigned) fs->super->s_max_mnt_count*2))
386 reason = 0;
387 } else if (!broken_system_clock && fs->super->s_checkinterval &&
388 (ctx->now < lastcheck)) {
389 reason = _(" has filesystem last checked time in the future");
390 if (batt)
391 reason = 0;
392 } else if (!broken_system_clock && fs->super->s_checkinterval &&
393 ((ctx->now - lastcheck) >=
394 ((time_t) fs->super->s_checkinterval))) {
395 reason = _(" has gone %u days without being checked");
396 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
397 if (batt && ((ctx->now - fs->super->s_lastcheck) <
398 fs->super->s_checkinterval*2))
399 reason = 0;
400 } else if (broken_system_clock && fs->super->s_checkinterval) {
401 log_out(ctx, "%s: ", ctx->device_name);
402 log_out(ctx, "%s",
403 _("ignoring check interval, broken_system_clock set\n"));
404 }
405
406 if (reason) {
407 log_out(ctx, "%s", ctx->device_name);
408 log_out(ctx, reason, reason_arg);
409 log_out(ctx, "%s", _(", check forced.\n"));
410 return;
411 }
412
413 /*
414 * Update the global counts from the block group counts. This
415 * is needed since modern kernels don't update the global
416 * counts so as to avoid locking the entire file system. So
417 * if the filesystem is not unmounted cleanly, the global
418 * counts may not be accurate. Update them here if we can,
419 * for the benefit of users who might examine the file system
420 * using dumpe2fs. (This is for cosmetic reasons only.)
421 */
422 clear_problem_context(&pctx);
423 pctx.ino = fs->super->s_free_inodes_count;
424 pctx.ino2 = ctx->free_inodes;
425 if ((pctx.ino != pctx.ino2) &&
426 !(ctx->options & E2F_OPT_READONLY) &&
427 fix_problem(ctx, PR_0_FREE_INODE_COUNT, &pctx)) {
428 fs->super->s_free_inodes_count = ctx->free_inodes;
429 ext2fs_mark_super_dirty(fs);
430 }
431 clear_problem_context(&pctx);
432 pctx.blk = ext2fs_free_blocks_count(fs->super);
433 pctx.blk2 = ctx->free_blocks;
434 if ((pctx.blk != pctx.blk2) &&
435 !(ctx->options & E2F_OPT_READONLY) &&
436 fix_problem(ctx, PR_0_FREE_BLOCK_COUNT, &pctx)) {
437 ext2fs_free_blocks_count_set(fs->super, ctx->free_blocks);
438 ext2fs_mark_super_dirty(fs);
439 }
440
441 /* Print the summary message when we're skipping a full check */
442 log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
443 ctx->device_name,
444 fs->super->s_inodes_count - fs->super->s_free_inodes_count,
445 fs->super->s_inodes_count,
446 ext2fs_blocks_count(fs->super) -
447 ext2fs_free_blocks_count(fs->super),
448 ext2fs_blocks_count(fs->super));
449 next_check = 100000;
450 if (fs->super->s_max_mnt_count > 0) {
451 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
452 if (next_check <= 0)
453 next_check = 1;
454 }
455 if (!broken_system_clock && fs->super->s_checkinterval &&
456 ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
457 next_check = 1;
458 if (next_check <= 5) {
459 if (next_check == 1) {
460 if (batt)
461 log_out(ctx, "%s",
462 _(" (check deferred; on battery)"));
463 else
464 log_out(ctx, "%s",
465 _(" (check after next mount)"));
466 } else
467 log_out(ctx, _(" (check in %ld mounts)"),
468 next_check);
469 }
470 log_out(ctx, "\n");
471 skip:
472 ext2fs_close_free(&ctx->fs);
473 e2fsck_free_context(ctx);
474 exit(FSCK_OK);
475 }
476
477 /*
478 * For completion notice
479 */
480 struct percent_tbl {
481 int max_pass;
482 int table[32];
483 };
484 static struct percent_tbl e2fsck_tbl = {
485 5, { 0, 70, 90, 92, 95, 100 }
486 };
487 static char bar[128], spaces[128];
488
calc_percent(struct percent_tbl * tbl,int pass,int curr,int max)489 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
490 int max)
491 {
492 float percent;
493
494 if (pass <= 0)
495 return 0.0;
496 if (pass > tbl->max_pass || max == 0)
497 return 100.0;
498 percent = ((float) curr) / ((float) max);
499 return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
500 + tbl->table[pass-1]);
501 }
502
e2fsck_clear_progbar(e2fsck_t ctx)503 void e2fsck_clear_progbar(e2fsck_t ctx)
504 {
505 if (!(ctx->flags & E2F_FLAG_PROG_BAR))
506 return;
507
508 printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
509 ctx->stop_meta);
510 fflush(stdout);
511 ctx->flags &= ~E2F_FLAG_PROG_BAR;
512 }
513
e2fsck_simple_progress(e2fsck_t ctx,const char * label,float percent,unsigned int dpynum)514 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
515 unsigned int dpynum)
516 {
517 static const char spinner[] = "\\|/-";
518 int i;
519 unsigned int tick;
520 struct timeval tv;
521 int dpywidth;
522 int fixed_percent;
523
524 if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
525 return 0;
526
527 /*
528 * Calculate the new progress position. If the
529 * percentage hasn't changed, then we skip out right
530 * away.
531 */
532 fixed_percent = (int) ((10 * percent) + 0.5);
533 if (ctx->progress_last_percent == fixed_percent)
534 return 0;
535 ctx->progress_last_percent = fixed_percent;
536
537 /*
538 * If we've already updated the spinner once within
539 * the last 1/8th of a second, no point doing it
540 * again.
541 */
542 gettimeofday(&tv, NULL);
543 tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
544 if ((tick == ctx->progress_last_time) &&
545 (fixed_percent != 0) && (fixed_percent != 1000))
546 return 0;
547 ctx->progress_last_time = tick;
548
549 /*
550 * Advance the spinner, and note that the progress bar
551 * will be on the screen
552 */
553 ctx->progress_pos = (ctx->progress_pos+1) & 3;
554 ctx->flags |= E2F_FLAG_PROG_BAR;
555
556 dpywidth = 66 - strlen(label);
557 dpywidth = 8 * (dpywidth / 8);
558 if (dpynum)
559 dpywidth -= 8;
560
561 i = ((percent * dpywidth) + 50) / 100;
562 printf("%s%s: |%s%s", ctx->start_meta, label,
563 bar + (sizeof(bar) - (i+1)),
564 spaces + (sizeof(spaces) - (dpywidth - i + 1)));
565 if (fixed_percent == 1000)
566 fputc('|', stdout);
567 else
568 fputc(spinner[ctx->progress_pos & 3], stdout);
569 printf(" %4.1f%% ", percent);
570 if (dpynum)
571 printf("%u\r", dpynum);
572 else
573 fputs(" \r", stdout);
574 fputs(ctx->stop_meta, stdout);
575
576 if (fixed_percent == 1000)
577 e2fsck_clear_progbar(ctx);
578 fflush(stdout);
579
580 return 0;
581 }
582
e2fsck_update_progress(e2fsck_t ctx,int pass,unsigned long cur,unsigned long max)583 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
584 unsigned long cur, unsigned long max)
585 {
586 char buf[1024];
587 float percent;
588
589 if (pass == 0)
590 return 0;
591
592 if (ctx->progress_fd) {
593 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
594 pass, cur, max, ctx->device_name);
595 write_all(ctx->progress_fd, buf, strlen(buf));
596 } else {
597 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
598 e2fsck_simple_progress(ctx, ctx->device_name,
599 percent, 0);
600 }
601 return 0;
602 }
603
604 #define PATH_SET "PATH=/sbin"
605
606 /*
607 * Make sure 0,1,2 file descriptors are open, so that we don't open
608 * the filesystem using the same file descriptor as stdout or stderr.
609 */
reserve_stdio_fds(void)610 static void reserve_stdio_fds(void)
611 {
612 int fd = 0;
613
614 while (fd <= 2) {
615 fd = open("/dev/null", O_RDWR);
616 if (fd < 0) {
617 fprintf(stderr, _("ERROR: Couldn't open "
618 "/dev/null (%s)\n"),
619 strerror(errno));
620 return;
621 }
622 }
623 (void) close(fd);
624 }
625
626 #ifdef HAVE_SIGNAL_H
signal_progress_on(int sig EXT2FS_ATTR ((unused)))627 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
628 {
629 e2fsck_t ctx = e2fsck_global_ctx;
630
631 if (!ctx)
632 return;
633
634 ctx->progress = e2fsck_update_progress;
635 }
636
signal_progress_off(int sig EXT2FS_ATTR ((unused)))637 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
638 {
639 e2fsck_t ctx = e2fsck_global_ctx;
640
641 if (!ctx)
642 return;
643
644 e2fsck_clear_progbar(ctx);
645 ctx->progress = 0;
646 }
647
signal_cancel(int sig EXT2FS_ATTR ((unused)))648 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
649 {
650 e2fsck_t ctx = e2fsck_global_ctx;
651
652 if (!ctx)
653 exit(FSCK_CANCELED);
654
655 ctx->flags |= E2F_FLAG_CANCEL;
656 }
657 #endif
658
parse_extended_opts(e2fsck_t ctx,const char * opts)659 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
660 {
661 char *buf, *token, *next, *p, *arg;
662 int ea_ver;
663 int extended_usage = 0;
664 unsigned long long reada_kb;
665
666 buf = string_copy(ctx, opts, 0);
667 for (token = buf; token && *token; token = next) {
668 p = strchr(token, ',');
669 next = 0;
670 if (p) {
671 *p = 0;
672 next = p+1;
673 }
674 arg = strchr(token, '=');
675 if (arg) {
676 *arg = 0;
677 arg++;
678 }
679 if (strcmp(token, "ea_ver") == 0) {
680 if (!arg) {
681 extended_usage++;
682 continue;
683 }
684 ea_ver = strtoul(arg, &p, 0);
685 if (*p ||
686 ((ea_ver != 1) && (ea_ver != 2))) {
687 fprintf(stderr, "%s",
688 _("Invalid EA version.\n"));
689 extended_usage++;
690 continue;
691 }
692 ctx->ext_attr_ver = ea_ver;
693 } else if (strcmp(token, "readahead_kb") == 0) {
694 if (!arg) {
695 extended_usage++;
696 continue;
697 }
698 reada_kb = strtoull(arg, &p, 0);
699 if (*p) {
700 fprintf(stderr, "%s",
701 _("Invalid readahead buffer size.\n"));
702 extended_usage++;
703 continue;
704 }
705 ctx->readahead_kb = reada_kb;
706 } else if (strcmp(token, "fragcheck") == 0) {
707 ctx->options |= E2F_OPT_FRAGCHECK;
708 continue;
709 } else if (strcmp(token, "journal_only") == 0) {
710 if (arg) {
711 extended_usage++;
712 continue;
713 }
714 ctx->options |= E2F_OPT_JOURNAL_ONLY;
715 } else if (strcmp(token, "discard") == 0) {
716 ctx->options |= E2F_OPT_DISCARD;
717 continue;
718 } else if (strcmp(token, "nodiscard") == 0) {
719 ctx->options &= ~E2F_OPT_DISCARD;
720 continue;
721 } else if (strcmp(token, "optimize_extents") == 0) {
722 ctx->options &= ~E2F_OPT_NOOPT_EXTENTS;
723 continue;
724 } else if (strcmp(token, "no_optimize_extents") == 0) {
725 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
726 continue;
727 } else if (strcmp(token, "inode_count_fullmap") == 0) {
728 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
729 continue;
730 } else if (strcmp(token, "no_inode_count_fullmap") == 0) {
731 ctx->options &= ~E2F_OPT_ICOUNT_FULLMAP;
732 continue;
733 } else if (strcmp(token, "log_filename") == 0) {
734 if (!arg)
735 extended_usage++;
736 else
737 ctx->log_fn = string_copy(ctx, arg, 0);
738 continue;
739 } else if (strcmp(token, "bmap2extent") == 0) {
740 ctx->options |= E2F_OPT_CONVERT_BMAP;
741 continue;
742 } else if (strcmp(token, "fixes_only") == 0) {
743 ctx->options |= E2F_OPT_FIXES_ONLY;
744 continue;
745 } else if (strcmp(token, "unshare_blocks") == 0) {
746 ctx->options |= E2F_OPT_UNSHARE_BLOCKS;
747 ctx->options |= E2F_OPT_FORCE;
748 continue;
749 } else {
750 fprintf(stderr, _("Unknown extended option: %s\n"),
751 token);
752 extended_usage++;
753 }
754 }
755 free(buf);
756
757 if (extended_usage) {
758 fputs(_("\nExtended options are separated by commas, "
759 "and may take an argument which\n"
760 "is set off by an equals ('=') sign. "
761 "Valid extended options are:\n\n"), stderr);
762 fputs(_("\tea_ver=<ea_version (1 or 2)>\n"), stderr);
763 fputs("\tfragcheck\n", stderr);
764 fputs("\tjournal_only\n", stderr);
765 fputs("\tdiscard\n", stderr);
766 fputs("\tnodiscard\n", stderr);
767 fputs("\toptimize_extents\n", stderr);
768 fputs("\tno_optimize_extents\n", stderr);
769 fputs("\tinode_count_fullmap\n", stderr);
770 fputs("\tno_inode_count_fullmap\n", stderr);
771 fputs(_("\treadahead_kb=<buffer size>\n"), stderr);
772 fputs("\tbmap2extent\n", stderr);
773 fputs("\tunshare_blocks\n", stderr);
774 fputs("\tfixes_only\n", stderr);
775 fputc('\n', stderr);
776 exit(1);
777 }
778 }
779
syntax_err_report(const char * filename,long err,int line_num)780 static void syntax_err_report(const char *filename, long err, int line_num)
781 {
782 fprintf(stderr,
783 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
784 filename, line_num, error_message(err));
785 exit(FSCK_ERROR);
786 }
787
788 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
789
PRS(int argc,char * argv[],e2fsck_t * ret_ctx)790 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
791 {
792 int flush = 0;
793 int c, fd;
794 #ifdef MTRACE
795 extern void *mallwatch;
796 #endif
797 e2fsck_t ctx;
798 errcode_t retval;
799 #ifdef HAVE_SIGNAL_H
800 struct sigaction sa;
801 #endif
802 char *extended_opts = 0;
803 char *cp;
804 int res; /* result of sscanf */
805 #ifdef CONFIG_JBD_DEBUG
806 char *jbd_debug;
807 #endif
808 unsigned long long phys_mem_kb;
809
810 retval = e2fsck_allocate_context(&ctx);
811 if (retval)
812 return retval;
813
814 *ret_ctx = ctx;
815 e2fsck_global_ctx = ctx;
816
817 setvbuf(stdout, NULL, _IONBF, BUFSIZ);
818 setvbuf(stderr, NULL, _IONBF, BUFSIZ);
819 if (getenv("E2FSCK_FORCE_INTERACTIVE") || (isatty(0) && isatty(1))) {
820 ctx->interactive = 1;
821 } else {
822 ctx->start_meta[0] = '\001';
823 ctx->stop_meta[0] = '\002';
824 }
825 memset(bar, '=', sizeof(bar)-1);
826 memset(spaces, ' ', sizeof(spaces)-1);
827 add_error_table(&et_ext2_error_table);
828 add_error_table(&et_prof_error_table);
829 blkid_get_cache(&ctx->blkid, NULL);
830
831 if (argc && *argv)
832 ctx->program_name = *argv;
833 else
834 ctx->program_name = "e2fsck";
835
836 phys_mem_kb = get_memory_size() / 1024;
837 ctx->readahead_kb = ~0ULL;
838 while ((c = getopt(argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDkz:")) != EOF)
839 switch (c) {
840 case 'C':
841 ctx->progress = e2fsck_update_progress;
842 res = sscanf(optarg, "%d", &ctx->progress_fd);
843 if (res != 1)
844 goto sscanf_err;
845
846 if (ctx->progress_fd < 0) {
847 ctx->progress = 0;
848 ctx->progress_fd = ctx->progress_fd * -1;
849 }
850 if (!ctx->progress_fd)
851 break;
852 /* Validate the file descriptor to avoid disasters */
853 fd = dup(ctx->progress_fd);
854 if (fd < 0) {
855 fprintf(stderr,
856 _("Error validating file descriptor %d: %s\n"),
857 ctx->progress_fd,
858 error_message(errno));
859 fatal_error(ctx,
860 _("Invalid completion information file descriptor"));
861 } else
862 close(fd);
863 break;
864 case 'D':
865 ctx->options |= E2F_OPT_COMPRESS_DIRS;
866 break;
867 case 'E':
868 extended_opts = optarg;
869 break;
870 case 'p':
871 case 'a':
872 if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
873 conflict_opt:
874 fatal_error(ctx,
875 _("Only one of the options -p/-a, -n or -y may be specified."));
876 }
877 ctx->options |= E2F_OPT_PREEN;
878 break;
879 case 'n':
880 if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
881 goto conflict_opt;
882 ctx->options |= E2F_OPT_NO;
883 break;
884 case 'y':
885 if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
886 goto conflict_opt;
887 ctx->options |= E2F_OPT_YES;
888 break;
889 case 't':
890 #ifdef RESOURCE_TRACK
891 if (ctx->options & E2F_OPT_TIME)
892 ctx->options |= E2F_OPT_TIME2;
893 else
894 ctx->options |= E2F_OPT_TIME;
895 #else
896 fprintf(stderr, _("The -t option is not "
897 "supported on this version of e2fsck.\n"));
898 #endif
899 break;
900 case 'c':
901 if (cflag++)
902 ctx->options |= E2F_OPT_WRITECHECK;
903 ctx->options |= E2F_OPT_CHECKBLOCKS;
904 break;
905 case 'r':
906 /* What we do by default, anyway! */
907 break;
908 case 'b':
909 res = sscanf(optarg, "%llu", &ctx->use_superblock);
910 if (res != 1)
911 goto sscanf_err;
912 ctx->flags |= E2F_FLAG_SB_SPECIFIED;
913 break;
914 case 'B':
915 ctx->blocksize = atoi(optarg);
916 break;
917 case 'I':
918 res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
919 if (res != 1)
920 goto sscanf_err;
921 break;
922 case 'j':
923 ctx->journal_name = blkid_get_devname(ctx->blkid,
924 optarg, NULL);
925 if (!ctx->journal_name) {
926 com_err(ctx->program_name, 0,
927 _("Unable to resolve '%s'"),
928 optarg);
929 fatal_error(ctx, 0);
930 }
931 break;
932 case 'P':
933 res = sscanf(optarg, "%d", &ctx->process_inode_size);
934 if (res != 1)
935 goto sscanf_err;
936 break;
937 case 'L':
938 replace_bad_blocks++;
939 /* fall through */
940 case 'l':
941 if (bad_blocks_file)
942 free(bad_blocks_file);
943 bad_blocks_file = string_copy(ctx, optarg, 0);
944 break;
945 case 'd':
946 ctx->options |= E2F_OPT_DEBUG;
947 break;
948 case 'f':
949 ctx->options |= E2F_OPT_FORCE;
950 break;
951 case 'F':
952 flush = 1;
953 break;
954 case 'v':
955 verbose = 1;
956 break;
957 case 'V':
958 show_version_only = 1;
959 break;
960 #ifdef MTRACE
961 case 'M':
962 mallwatch = (void *) strtol(optarg, NULL, 0);
963 break;
964 #endif
965 case 'N':
966 ctx->device_name = string_copy(ctx, optarg, 0);
967 break;
968 case 'k':
969 keep_bad_blocks++;
970 break;
971 case 'z':
972 ctx->undo_file = optarg;
973 break;
974 default:
975 usage(ctx);
976 }
977 if (show_version_only)
978 return 0;
979 if (optind != argc - 1)
980 usage(ctx);
981 if ((ctx->options & E2F_OPT_NO) &&
982 (ctx->options & E2F_OPT_COMPRESS_DIRS)) {
983 com_err(ctx->program_name, 0, "%s",
984 _("The -n and -D options are incompatible."));
985 fatal_error(ctx, 0);
986 }
987 if ((ctx->options & E2F_OPT_NO) && cflag) {
988 com_err(ctx->program_name, 0, "%s",
989 _("The -n and -c options are incompatible."));
990 fatal_error(ctx, 0);
991 }
992 if ((ctx->options & E2F_OPT_NO) && bad_blocks_file) {
993 com_err(ctx->program_name, 0, "%s",
994 _("The -n and -l/-L options are incompatible."));
995 fatal_error(ctx, 0);
996 }
997 if (ctx->options & E2F_OPT_NO)
998 ctx->options |= E2F_OPT_READONLY;
999
1000 ctx->io_options = strchr(argv[optind], '?');
1001 if (ctx->io_options)
1002 *ctx->io_options++ = 0;
1003 ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
1004 if (!ctx->filesystem_name) {
1005 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
1006 argv[optind]);
1007 fatal_error(ctx, 0);
1008 }
1009 if (extended_opts)
1010 parse_extended_opts(ctx, extended_opts);
1011
1012 /* Complain about mutually exclusive rebuilding activities */
1013 if (getenv("E2FSCK_FIXES_ONLY"))
1014 ctx->options |= E2F_OPT_FIXES_ONLY;
1015 if ((ctx->options & E2F_OPT_COMPRESS_DIRS) &&
1016 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1017 com_err(ctx->program_name, 0, "%s",
1018 _("The -D and -E fixes_only options are incompatible."));
1019 fatal_error(ctx, 0);
1020 }
1021 if ((ctx->options & E2F_OPT_CONVERT_BMAP) &&
1022 (ctx->options & E2F_OPT_FIXES_ONLY)) {
1023 com_err(ctx->program_name, 0, "%s",
1024 _("The -E bmap2extent and fixes_only options are incompatible."));
1025 fatal_error(ctx, 0);
1026 }
1027
1028 if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
1029 config_fn[0] = cp;
1030 profile_set_syntax_err_cb(syntax_err_report);
1031 profile_init(config_fn, &ctx->profile);
1032
1033 profile_get_boolean(ctx->profile, "options", "report_time", 0, 0,
1034 &c);
1035 if (c)
1036 ctx->options |= E2F_OPT_TIME | E2F_OPT_TIME2;
1037 profile_get_boolean(ctx->profile, "options", "report_verbose", 0, 0,
1038 &c);
1039 if (c)
1040 verbose = 1;
1041
1042 profile_get_boolean(ctx->profile, "options", "no_optimize_extents",
1043 0, 0, &c);
1044 if (c)
1045 ctx->options |= E2F_OPT_NOOPT_EXTENTS;
1046
1047 profile_get_boolean(ctx->profile, "options", "inode_count_fullmap",
1048 0, 0, &c);
1049 if (c)
1050 ctx->options |= E2F_OPT_ICOUNT_FULLMAP;
1051
1052 if (ctx->readahead_kb == ~0ULL) {
1053 profile_get_integer(ctx->profile, "options",
1054 "readahead_mem_pct", 0, -1, &c);
1055 if (c >= 0 && c <= 100)
1056 ctx->readahead_kb = phys_mem_kb * c / 100;
1057 profile_get_integer(ctx->profile, "options",
1058 "readahead_kb", 0, -1, &c);
1059 if (c >= 0)
1060 ctx->readahead_kb = c;
1061 if (ctx->readahead_kb != ~0ULL &&
1062 ctx->readahead_kb > phys_mem_kb)
1063 ctx->readahead_kb = phys_mem_kb;
1064 }
1065
1066 /* Turn off discard in read-only mode */
1067 if ((ctx->options & E2F_OPT_NO) &&
1068 (ctx->options & E2F_OPT_DISCARD))
1069 ctx->options &= ~E2F_OPT_DISCARD;
1070
1071 if (flush) {
1072 fd = open(ctx->filesystem_name, O_RDONLY, 0);
1073 if (fd < 0) {
1074 com_err("open", errno,
1075 _("while opening %s for flushing"),
1076 ctx->filesystem_name);
1077 fatal_error(ctx, 0);
1078 }
1079 if ((retval = ext2fs_sync_device(fd, 1))) {
1080 com_err("ext2fs_sync_device", retval,
1081 _("while trying to flush %s"),
1082 ctx->filesystem_name);
1083 fatal_error(ctx, 0);
1084 }
1085 close(fd);
1086 }
1087 if (cflag && bad_blocks_file) {
1088 fprintf(stderr, "%s", _("The -c and the -l/-L options may not "
1089 "be both used at the same time.\n"));
1090 exit(FSCK_USAGE);
1091 }
1092 #ifdef HAVE_SIGNAL_H
1093 /*
1094 * Set up signal action
1095 */
1096 memset(&sa, 0, sizeof(struct sigaction));
1097 sa.sa_handler = signal_cancel;
1098 sigaction(SIGINT, &sa, 0);
1099 sigaction(SIGTERM, &sa, 0);
1100 #ifdef SA_RESTART
1101 sa.sa_flags = SA_RESTART;
1102 #endif
1103 sa.sa_handler = signal_progress_on;
1104 sigaction(SIGUSR1, &sa, 0);
1105 sa.sa_handler = signal_progress_off;
1106 sigaction(SIGUSR2, &sa, 0);
1107 #endif
1108
1109 /* Update our PATH to include /sbin if we need to run badblocks */
1110 if (cflag) {
1111 char *oldpath = getenv("PATH");
1112 char *newpath;
1113 int len = sizeof(PATH_SET) + 1;
1114
1115 if (oldpath)
1116 len += strlen(oldpath);
1117
1118 newpath = malloc(len);
1119 if (!newpath)
1120 fatal_error(ctx, "Couldn't malloc() newpath");
1121 strcpy(newpath, PATH_SET);
1122
1123 if (oldpath) {
1124 strcat(newpath, ":");
1125 strcat(newpath, oldpath);
1126 }
1127 putenv(newpath);
1128 }
1129 #ifdef CONFIG_JBD_DEBUG
1130 jbd_debug = getenv("E2FSCK_JBD_DEBUG");
1131 if (jbd_debug) {
1132 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
1133 if (res != 1) {
1134 fprintf(stderr,
1135 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
1136 jbd_debug);
1137 exit (1);
1138 }
1139 }
1140 #endif
1141 return 0;
1142
1143 sscanf_err:
1144 fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
1145 c, optarg);
1146 exit (1);
1147 }
1148
try_open_fs(e2fsck_t ctx,int flags,io_manager io_ptr,ext2_filsys * ret_fs)1149 static errcode_t try_open_fs(e2fsck_t ctx, int flags, io_manager io_ptr,
1150 ext2_filsys *ret_fs)
1151 {
1152 errcode_t retval;
1153
1154 *ret_fs = NULL;
1155 if (ctx->superblock && ctx->blocksize) {
1156 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1157 flags, ctx->superblock, ctx->blocksize,
1158 io_ptr, ret_fs);
1159 } else if (ctx->superblock) {
1160 int blocksize;
1161 for (blocksize = EXT2_MIN_BLOCK_SIZE;
1162 blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
1163 if (*ret_fs) {
1164 ext2fs_free(*ret_fs);
1165 *ret_fs = NULL;
1166 }
1167 retval = ext2fs_open2(ctx->filesystem_name,
1168 ctx->io_options, flags,
1169 ctx->superblock, blocksize,
1170 io_ptr, ret_fs);
1171 if (!retval)
1172 break;
1173 }
1174 } else
1175 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
1176 flags, 0, 0, io_ptr, ret_fs);
1177
1178 if (retval == 0) {
1179 (*ret_fs)->priv_data = ctx;
1180 e2fsck_set_bitmap_type(*ret_fs, EXT2FS_BMAP64_RBTREE,
1181 "default", NULL);
1182 }
1183 return retval;
1184 }
1185
1186 static const char *my_ver_string = E2FSPROGS_VERSION;
1187 static const char *my_ver_date = E2FSPROGS_DATE;
1188
e2fsck_check_mmp(ext2_filsys fs,e2fsck_t ctx)1189 static errcode_t e2fsck_check_mmp(ext2_filsys fs, e2fsck_t ctx)
1190 {
1191 struct mmp_struct *mmp_s;
1192 unsigned int mmp_check_interval;
1193 errcode_t retval = 0;
1194 struct problem_context pctx;
1195 unsigned int wait_time = 0;
1196
1197 clear_problem_context(&pctx);
1198 if (fs->mmp_buf == NULL) {
1199 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
1200 if (retval)
1201 goto check_error;
1202 }
1203
1204 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
1205 if (retval)
1206 goto check_error;
1207
1208 mmp_s = fs->mmp_buf;
1209
1210 mmp_check_interval = fs->super->s_mmp_update_interval;
1211 if (mmp_check_interval < EXT4_MMP_MIN_CHECK_INTERVAL)
1212 mmp_check_interval = EXT4_MMP_MIN_CHECK_INTERVAL;
1213
1214 /*
1215 * If check_interval in MMP block is larger, use that instead of
1216 * check_interval from the superblock.
1217 */
1218 if (mmp_s->mmp_check_interval > mmp_check_interval)
1219 mmp_check_interval = mmp_s->mmp_check_interval;
1220
1221 wait_time = mmp_check_interval * 2 + 1;
1222
1223 if (mmp_s->mmp_seq == EXT4_MMP_SEQ_CLEAN)
1224 retval = 0;
1225 else if (mmp_s->mmp_seq == EXT4_MMP_SEQ_FSCK)
1226 retval = EXT2_ET_MMP_FSCK_ON;
1227 else if (mmp_s->mmp_seq > EXT4_MMP_SEQ_MAX)
1228 retval = EXT2_ET_MMP_UNKNOWN_SEQ;
1229
1230 if (retval)
1231 goto check_error;
1232
1233 /* Print warning if e2fsck will wait for more than 20 secs. */
1234 if (verbose || wait_time > EXT4_MMP_MIN_CHECK_INTERVAL * 4) {
1235 log_out(ctx, _("MMP interval is %u seconds and total wait "
1236 "time is %u seconds. Please wait...\n"),
1237 mmp_check_interval, wait_time * 2);
1238 }
1239
1240 return 0;
1241
1242 check_error:
1243
1244 if (retval == EXT2_ET_MMP_BAD_BLOCK) {
1245 if (fix_problem(ctx, PR_0_MMP_INVALID_BLK, &pctx)) {
1246 fs->super->s_mmp_block = 0;
1247 ext2fs_mark_super_dirty(fs);
1248 retval = 0;
1249 }
1250 } else if (retval == EXT2_ET_MMP_FAILED) {
1251 com_err(ctx->program_name, retval, "%s",
1252 _("while checking MMP block"));
1253 dump_mmp_msg(fs->mmp_buf, NULL);
1254 } else if (retval == EXT2_ET_MMP_FSCK_ON ||
1255 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
1256 com_err(ctx->program_name, retval, "%s",
1257 _("while checking MMP block"));
1258 dump_mmp_msg(fs->mmp_buf,
1259 _("If you are sure the filesystem is not "
1260 "in use on any node, run:\n"
1261 "'tune2fs -f -E clear_mmp %s'\n"),
1262 ctx->device_name);
1263 } else if (retval == EXT2_ET_MMP_MAGIC_INVALID) {
1264 if (fix_problem(ctx, PR_0_MMP_INVALID_MAGIC, &pctx)) {
1265 ext2fs_mmp_clear(fs);
1266 retval = 0;
1267 }
1268 } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
1269 if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
1270 ext2fs_mmp_clear(fs);
1271 retval = 0;
1272 }
1273 } else
1274 com_err(ctx->program_name, retval, "%s",
1275 _("while reading MMP block"));
1276 return retval;
1277 }
1278
e2fsck_setup_tdb(e2fsck_t ctx,io_manager * io_ptr)1279 static int e2fsck_setup_tdb(e2fsck_t ctx, io_manager *io_ptr)
1280 {
1281 errcode_t retval = ENOMEM;
1282 char *tdb_dir = NULL, *tdb_file = NULL;
1283 char *dev_name, *tmp_name;
1284 int free_tdb_dir = 0;
1285
1286 /* (re)open a specific undo file */
1287 if (ctx->undo_file && ctx->undo_file[0] != 0) {
1288 retval = set_undo_io_backing_manager(*io_ptr);
1289 if (retval)
1290 goto err;
1291 *io_ptr = undo_io_manager;
1292 retval = set_undo_io_backup_file(ctx->undo_file);
1293 if (retval)
1294 goto err;
1295 printf(_("Overwriting existing filesystem; this can be undone "
1296 "using the command:\n"
1297 " e2undo %s %s\n\n"),
1298 ctx->undo_file, ctx->filesystem_name);
1299 return retval;
1300 }
1301
1302 /*
1303 * Configuration via a conf file would be
1304 * nice
1305 */
1306 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1307 if (!tdb_dir) {
1308 profile_get_string(ctx->profile, "defaults",
1309 "undo_dir", 0, "/var/lib/e2fsprogs",
1310 &tdb_dir);
1311 free_tdb_dir = 1;
1312 }
1313
1314 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1315 access(tdb_dir, W_OK)) {
1316 if (free_tdb_dir)
1317 free(tdb_dir);
1318 return 0;
1319 }
1320
1321 tmp_name = strdup(ctx->filesystem_name);
1322 if (!tmp_name)
1323 goto errout;
1324 dev_name = basename(tmp_name);
1325 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
1326 if (!tdb_file) {
1327 free(tmp_name);
1328 goto errout;
1329 }
1330 sprintf(tdb_file, "%s/e2fsck-%s.e2undo", tdb_dir, dev_name);
1331 free(tmp_name);
1332
1333 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1334 retval = errno;
1335 com_err(ctx->program_name, retval,
1336 _("while trying to delete %s"), tdb_file);
1337 goto errout;
1338 }
1339
1340 retval = set_undo_io_backing_manager(*io_ptr);
1341 if (retval)
1342 goto errout;
1343 *io_ptr = undo_io_manager;
1344 retval = set_undo_io_backup_file(tdb_file);
1345 if (retval)
1346 goto errout;
1347 printf(_("Overwriting existing filesystem; this can be undone "
1348 "using the command:\n"
1349 " e2undo %s %s\n\n"), tdb_file, ctx->filesystem_name);
1350
1351 if (free_tdb_dir)
1352 free(tdb_dir);
1353 free(tdb_file);
1354 return 0;
1355
1356 errout:
1357 if (free_tdb_dir)
1358 free(tdb_dir);
1359 free(tdb_file);
1360 err:
1361 com_err(ctx->program_name, retval, "%s",
1362 _("while trying to setup undo file\n"));
1363 return retval;
1364 }
1365
main(int argc,char * argv[])1366 int main (int argc, char *argv[])
1367 {
1368 errcode_t retval = 0, retval2 = 0, orig_retval = 0;
1369 int exit_value = FSCK_OK;
1370 ext2_filsys fs = 0;
1371 io_manager io_ptr;
1372 struct ext2_super_block *sb;
1373 const char *lib_ver_date;
1374 int my_ver, lib_ver;
1375 e2fsck_t ctx;
1376 blk64_t orig_superblock = ~(blk64_t)0;
1377 struct problem_context pctx;
1378 int flags, run_result, was_changed;
1379 int journal_size;
1380 int sysval, sys_page_size = 4096;
1381 int old_bitmaps;
1382 __u32 features[3];
1383 char *cp;
1384 enum quota_type qtype;
1385
1386 clear_problem_context(&pctx);
1387 sigcatcher_setup();
1388 #ifdef MTRACE
1389 mtrace();
1390 #endif
1391 #ifdef MCHECK
1392 mcheck(0);
1393 #endif
1394 #ifdef ENABLE_NLS
1395 setlocale(LC_MESSAGES, "");
1396 setlocale(LC_CTYPE, "");
1397 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1398 textdomain(NLS_CAT_NAME);
1399 set_com_err_gettext(gettext);
1400 #endif
1401 my_ver = ext2fs_parse_version_string(my_ver_string);
1402 lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
1403 if (my_ver > lib_ver) {
1404 fprintf( stderr, "%s",
1405 _("Error: ext2fs library version out of date!\n"));
1406 show_version_only++;
1407 }
1408
1409 retval = PRS(argc, argv, &ctx);
1410 if (retval) {
1411 com_err("e2fsck", retval, "%s",
1412 _("while trying to initialize program"));
1413 exit(FSCK_ERROR);
1414 }
1415 reserve_stdio_fds();
1416
1417 set_up_logging(ctx);
1418 if (ctx->logf) {
1419 int i;
1420 fputs("E2fsck run: ", ctx->logf);
1421 for (i = 0; i < argc; i++) {
1422 if (i)
1423 fputc(' ', ctx->logf);
1424 fputs(argv[i], ctx->logf);
1425 }
1426 fputc('\n', ctx->logf);
1427 }
1428
1429 init_resource_track(&ctx->global_rtrack, NULL);
1430 if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
1431 log_err(ctx, "e2fsck %s (%s)\n", my_ver_string,
1432 my_ver_date);
1433
1434 if (show_version_only) {
1435 log_err(ctx, _("\tUsing %s, %s\n"),
1436 error_message(EXT2_ET_BASE), lib_ver_date);
1437 exit(FSCK_OK);
1438 }
1439
1440 check_mount(ctx);
1441
1442 if (!(ctx->options & E2F_OPT_PREEN) &&
1443 !(ctx->options & E2F_OPT_NO) &&
1444 !(ctx->options & E2F_OPT_YES)) {
1445 if (!ctx->interactive)
1446 fatal_error(ctx,
1447 _("need terminal for interactive repairs"));
1448 }
1449 ctx->superblock = ctx->use_superblock;
1450
1451 flags = EXT2_FLAG_SKIP_MMP;
1452 restart:
1453 #ifdef CONFIG_TESTIO_DEBUG
1454 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1455 io_ptr = test_io_manager;
1456 test_io_backing_manager = unix_io_manager;
1457 } else
1458 #endif
1459 io_ptr = unix_io_manager;
1460 flags |= EXT2_FLAG_NOFREE_ON_ERROR;
1461 profile_get_boolean(ctx->profile, "options", "old_bitmaps", 0, 0,
1462 &old_bitmaps);
1463 if (!old_bitmaps)
1464 flags |= EXT2_FLAG_64BITS;
1465 if ((ctx->options & E2F_OPT_READONLY) == 0) {
1466 flags |= EXT2_FLAG_RW;
1467 if (!(ctx->mount_flags & EXT2_MF_ISROOT &&
1468 ctx->mount_flags & EXT2_MF_READONLY))
1469 flags |= EXT2_FLAG_EXCLUSIVE;
1470 if ((ctx->mount_flags & EXT2_MF_READONLY) &&
1471 (ctx->options & E2F_OPT_FORCE))
1472 flags &= ~EXT2_FLAG_EXCLUSIVE;
1473 }
1474
1475 if (ctx->undo_file) {
1476 retval = e2fsck_setup_tdb(ctx, &io_ptr);
1477 if (retval)
1478 exit(FSCK_ERROR);
1479 }
1480
1481 ctx->openfs_flags = flags;
1482 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1483
1484 if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
1485 !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
1486 ((retval == EXT2_ET_BAD_MAGIC) ||
1487 (retval == EXT2_ET_SB_CSUM_INVALID) ||
1488 (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
1489 ((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
1490 if (retval) {
1491 pctx.errcode = retval;
1492 fix_problem(ctx, PR_0_OPEN_FAILED, &pctx);
1493 }
1494 if (retval2) {
1495 pctx.errcode = retval2;
1496 fix_problem(ctx, PR_0_CHECK_DESC_FAILED, &pctx);
1497 }
1498 pctx.errcode = 0;
1499 if (retval2 == ENOMEM || retval2 == EXT2_ET_NO_MEMORY) {
1500 retval = retval2;
1501 goto failure;
1502 }
1503 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
1504 ext2fs_free(fs);
1505 fs = NULL;
1506 }
1507 if (!fs || (fs->group_desc_count > 1)) {
1508 log_out(ctx, _("%s: %s trying backup blocks...\n"),
1509 ctx->program_name,
1510 retval ? _("Superblock invalid,") :
1511 _("Group descriptors look bad..."));
1512 orig_superblock = ctx->superblock;
1513 get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
1514 if (fs)
1515 ext2fs_close_free(&fs);
1516 orig_retval = retval;
1517 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1518 if ((orig_retval == 0) && retval != 0) {
1519 if (fs)
1520 ext2fs_close_free(&fs);
1521 log_out(ctx, _("%s: %s while using the "
1522 "backup blocks"),
1523 ctx->program_name,
1524 error_message(retval));
1525 log_out(ctx, _("%s: going back to original "
1526 "superblock\n"),
1527 ctx->program_name);
1528 ctx->superblock = orig_superblock;
1529 retval = try_open_fs(ctx, flags, io_ptr, &fs);
1530 }
1531 }
1532 }
1533 if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
1534 (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
1535 fs && fs->super) {
1536 sb = fs->super;
1537 features[0] = (sb->s_feature_compat &
1538 ~EXT2_LIB_FEATURE_COMPAT_SUPP);
1539 features[1] = (sb->s_feature_incompat &
1540 ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
1541 features[2] = (sb->s_feature_ro_compat &
1542 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1543 if (features[0] || features[1] || features[2])
1544 goto print_unsupp_features;
1545 }
1546 failure:
1547 if (retval) {
1548 if (orig_retval)
1549 retval = orig_retval;
1550 com_err(ctx->program_name, retval, _("while trying to open %s"),
1551 ctx->filesystem_name);
1552 if (retval == EXT2_ET_REV_TOO_HIGH) {
1553 log_out(ctx, "%s",
1554 _("The filesystem revision is apparently "
1555 "too high for this version of e2fsck.\n"
1556 "(Or the filesystem superblock "
1557 "is corrupt)\n\n"));
1558 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1559 } else if (retval == EXT2_ET_SHORT_READ)
1560 log_out(ctx, "%s",
1561 _("Could this be a zero-length partition?\n"));
1562 else if ((retval == EPERM) || (retval == EACCES))
1563 log_out(ctx, _("You must have %s access to the "
1564 "filesystem or be root\n"),
1565 (ctx->options & E2F_OPT_READONLY) ?
1566 "r/o" : "r/w");
1567 else if (retval == ENXIO)
1568 log_out(ctx, "%s",
1569 _("Possibly non-existent or swap device?\n"));
1570 else if (retval == EBUSY)
1571 log_out(ctx, "%s", _("Filesystem mounted or opened "
1572 "exclusively by another program?\n"));
1573 else if (retval == ENOENT)
1574 log_out(ctx, "%s",
1575 _("Possibly non-existent device?\n"));
1576 #ifdef EROFS
1577 else if (retval == EROFS)
1578 log_out(ctx, "%s", _("Disk write-protected; use the "
1579 "-n option to do a read-only\n"
1580 "check of the device.\n"));
1581 #endif
1582 else {
1583 /*
1584 * Let's try once more will less consistency checking
1585 * so that we are able to recover from more errors
1586 * (e.g. some tool messing up some value in the sb).
1587 */
1588 if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) &&
1589 !(flags & EXT2_FLAG_IGNORE_SB_ERRORS)) {
1590 if (fs)
1591 ext2fs_close_free(&fs);
1592 log_out(ctx, _("%s: Trying to load superblock "
1593 "despite errors...\n"),
1594 ctx->program_name);
1595 flags |= EXT2_FLAG_IGNORE_SB_ERRORS;
1596 /*
1597 * If we tried backup sb, revert to the
1598 * original one now.
1599 */
1600 if (orig_superblock != ~(blk64_t)0)
1601 ctx->superblock = orig_superblock;
1602 goto restart;
1603 }
1604 fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1605 if (retval == EXT2_ET_BAD_MAGIC)
1606 check_plausibility(ctx->filesystem_name,
1607 CHECK_FS_EXIST, NULL);
1608 }
1609 fatal_error(ctx, 0);
1610 }
1611 /*
1612 * We only update the master superblock because (a) paranoia;
1613 * we don't want to corrupt the backup superblocks, and (b) we
1614 * don't need to update the mount count and last checked
1615 * fields in the backup superblock (the kernel doesn't update
1616 * the backup superblocks anyway). With newer versions of the
1617 * library this flag is set by ext2fs_open2(), but we set this
1618 * here just to be sure. (No, we don't support e2fsck running
1619 * with some other libext2fs than the one that it was shipped
1620 * with, but just in case....)
1621 */
1622 fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1623
1624 if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1625 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1626 int need_restart = 0;
1627
1628 pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
1629 blocksize,
1630 &ctx->num_blocks);
1631 /*
1632 * The floppy driver refuses to allow anyone else to
1633 * open the device if has been opened with O_EXCL;
1634 * this is unlike other block device drivers in Linux.
1635 * To handle this, we close the filesystem and then
1636 * reopen the filesystem after we get the device size.
1637 */
1638 if (pctx.errcode == EBUSY) {
1639 ext2fs_close_free(&fs);
1640 need_restart++;
1641 pctx.errcode =
1642 ext2fs_get_device_size2(ctx->filesystem_name,
1643 blocksize,
1644 &ctx->num_blocks);
1645 }
1646 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1647 ctx->num_blocks = 0;
1648 else if (pctx.errcode) {
1649 fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1650 ctx->flags |= E2F_FLAG_ABORT;
1651 fatal_error(ctx, 0);
1652 }
1653 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1654 if (need_restart)
1655 goto restart;
1656 }
1657
1658 ctx->fs = fs;
1659 fs->now = ctx->now;
1660 sb = fs->super;
1661
1662 if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1663 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1664 _("while trying to open %s"),
1665 ctx->filesystem_name);
1666 get_newer:
1667 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1668 }
1669
1670 /*
1671 * Set the device name, which is used whenever we print error
1672 * or informational messages to the user.
1673 */
1674 if (ctx->device_name == 0 &&
1675 (sb->s_volume_name[0] != 0)) {
1676 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1677 sizeof(sb->s_volume_name));
1678 }
1679 if (ctx->device_name == 0)
1680 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1681 for (cp = ctx->device_name; *cp; cp++)
1682 if (isspace(*cp) || *cp == ':')
1683 *cp = '_';
1684
1685 ehandler_init(fs->io);
1686
1687 if (ext2fs_has_feature_mmp(fs->super) &&
1688 (flags & EXT2_FLAG_SKIP_MMP)) {
1689 if (e2fsck_check_mmp(fs, ctx))
1690 fatal_error(ctx, 0);
1691
1692 /*
1693 * Restart in order to reopen fs but this time start mmp.
1694 */
1695 ext2fs_close_free(&ctx->fs);
1696 flags &= ~EXT2_FLAG_SKIP_MMP;
1697 goto restart;
1698 }
1699
1700 if (ctx->logf)
1701 fprintf(ctx->logf, "Filesystem UUID: %s\n",
1702 e2p_uuid2str(sb->s_uuid));
1703
1704 /*
1705 * Make sure the ext3 superblock fields are consistent.
1706 */
1707 if ((ctx->mount_flags & (EXT2_MF_MOUNTED | EXT2_MF_BUSY)) == 0) {
1708 retval = e2fsck_check_ext3_journal(ctx);
1709 if (retval) {
1710 com_err(ctx->program_name, retval,
1711 _("while checking journal for %s"),
1712 ctx->device_name);
1713 fatal_error(ctx,
1714 _("Cannot proceed with file system check"));
1715 }
1716 }
1717
1718 /*
1719 * Check to see if we need to do ext3-style recovery. If so,
1720 * do it, and then restart the fsck.
1721 */
1722 if (ext2fs_has_feature_journal_needs_recovery(sb)) {
1723 if (ctx->options & E2F_OPT_READONLY) {
1724 log_out(ctx, "%s",
1725 _("Warning: skipping journal recovery because "
1726 "doing a read-only filesystem check.\n"));
1727 io_channel_flush(ctx->fs->io);
1728 } else {
1729 if (ctx->flags & E2F_FLAG_RESTARTED) {
1730 /*
1731 * Whoops, we attempted to run the
1732 * journal twice. This should never
1733 * happen, unless the hardware or
1734 * device driver is being bogus.
1735 */
1736 com_err(ctx->program_name, 0,
1737 _("unable to set superblock flags "
1738 "on %s\n"), ctx->device_name);
1739 fatal_error(ctx, 0);
1740 }
1741 retval = e2fsck_run_ext3_journal(ctx);
1742 if (retval == EFSBADCRC) {
1743 log_out(ctx, _("Journal checksum error "
1744 "found in %s\n"),
1745 ctx->device_name);
1746 } else if (retval == EFSCORRUPTED) {
1747 log_out(ctx, _("Journal corrupted in %s\n"),
1748 ctx->device_name);
1749 } else if (retval) {
1750 com_err(ctx->program_name, retval,
1751 _("while recovering journal of %s"),
1752 ctx->device_name);
1753 }
1754 ext2fs_close_free(&ctx->fs);
1755 ctx->flags |= E2F_FLAG_RESTARTED;
1756 goto restart;
1757 }
1758 }
1759
1760 /*
1761 * Check for compatibility with the feature sets. We need to
1762 * be more stringent than ext2fs_open().
1763 */
1764 features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1765 features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1766 features[2] = (sb->s_feature_ro_compat &
1767 ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1768 print_unsupp_features:
1769 if (features[0] || features[1] || features[2]) {
1770 int i, j;
1771 __u32 *mask = features, m;
1772
1773 log_err(ctx, _("%s has unsupported feature(s):"),
1774 ctx->filesystem_name);
1775
1776 for (i=0; i <3; i++,mask++) {
1777 for (j=0,m=1; j < 32; j++, m<<=1) {
1778 if (*mask & m)
1779 log_err(ctx, " %s",
1780 e2p_feature2string(i, m));
1781 }
1782 }
1783 log_err(ctx, "\n");
1784 goto get_newer;
1785 }
1786
1787 /*
1788 * If the user specified a specific superblock, presumably the
1789 * master superblock has been trashed. So we mark the
1790 * superblock as dirty, so it can be written out.
1791 */
1792 if (ctx->superblock &&
1793 !(ctx->options & E2F_OPT_READONLY))
1794 ext2fs_mark_super_dirty(fs);
1795
1796 /*
1797 * Calculate the number of filesystem blocks per pagesize. If
1798 * fs->blocksize > page_size, set the number of blocks per
1799 * pagesize to 1 to avoid division by zero errors.
1800 */
1801 #ifdef _SC_PAGESIZE
1802 sysval = sysconf(_SC_PAGESIZE);
1803 if (sysval > 0)
1804 sys_page_size = sysval;
1805 #endif /* _SC_PAGESIZE */
1806 ctx->blocks_per_page = sys_page_size / fs->blocksize;
1807 if (ctx->blocks_per_page == 0)
1808 ctx->blocks_per_page = 1;
1809
1810 if (ctx->superblock)
1811 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1812 ext2fs_mark_valid(fs);
1813 check_super_block(ctx);
1814 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1815 fatal_error(ctx, 0);
1816 check_if_skip(ctx);
1817 check_resize_inode(ctx);
1818 if (bad_blocks_file)
1819 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1820 else if (cflag)
1821 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1822 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1823 fatal_error(ctx, 0);
1824
1825 /*
1826 * Mark the system as valid, 'til proven otherwise
1827 */
1828 ext2fs_mark_valid(fs);
1829
1830 retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1831 if (retval) {
1832 log_out(ctx, _("%s: %s while reading bad blocks inode\n"),
1833 ctx->program_name, error_message(retval));
1834 preenhalt(ctx);
1835 log_out(ctx, "%s", _("This doesn't bode well, "
1836 "but we'll try to go on...\n"));
1837 }
1838
1839 /*
1840 * Save the journal size in megabytes.
1841 * Try and use the journal size from the backup else let e2fsck
1842 * find the default journal size.
1843 */
1844 if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1845 journal_size = (sb->s_jnl_blocks[15] << (32 - 20)) |
1846 (sb->s_jnl_blocks[16] >> 20);
1847 else
1848 journal_size = -1;
1849
1850 if (ext2fs_has_feature_quota(sb)) {
1851 /* Quotas were enabled. Do quota accounting during fsck. */
1852 clear_problem_context(&pctx);
1853 pctx.errcode = quota_init_context(&ctx->qctx, ctx->fs, 0);
1854 if (pctx.errcode) {
1855 fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
1856 fatal_error(ctx, 0);
1857 }
1858 }
1859
1860 run_result = e2fsck_run(ctx);
1861 e2fsck_clear_progbar(ctx);
1862
1863 if (!ctx->invalid_bitmaps &&
1864 (ctx->flags & E2F_FLAG_JOURNAL_INODE)) {
1865 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1866 if (journal_size < 1024)
1867 journal_size = ext2fs_default_journal_size(ext2fs_blocks_count(fs->super));
1868 if (journal_size < 0) {
1869 ext2fs_clear_feature_journal(fs->super);
1870 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1871 log_out(ctx, "%s: Couldn't determine "
1872 "journal size\n", ctx->program_name);
1873 goto no_journal;
1874 }
1875 log_out(ctx, _("Creating journal (%d blocks): "),
1876 journal_size);
1877 fflush(stdout);
1878 retval = ext2fs_add_journal_inode(fs,
1879 journal_size, 0);
1880 if (retval) {
1881 log_out(ctx, "%s: while trying to create "
1882 "journal\n", error_message(retval));
1883 goto no_journal;
1884 }
1885 log_out(ctx, "%s", _(" Done.\n"));
1886 log_out(ctx, "%s",
1887 _("\n*** journal has been regenerated ***\n"));
1888 }
1889 }
1890 no_journal:
1891
1892 if (run_result & E2F_FLAG_ABORT) {
1893 fatal_error(ctx, _("aborted"));
1894 } else if (run_result & E2F_FLAG_CANCEL) {
1895 log_out(ctx, _("%s: e2fsck canceled.\n"), ctx->device_name ?
1896 ctx->device_name : ctx->filesystem_name);
1897 exit_value |= FSCK_CANCELED;
1898 } else if (ctx->qctx && !ctx->invalid_bitmaps) {
1899 int needs_writeout;
1900
1901 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1902 if (*quota_sb_inump(sb, qtype) == 0)
1903 continue;
1904 needs_writeout = 0;
1905 pctx.num = qtype;
1906 retval = quota_compare_and_update(ctx->qctx, qtype,
1907 &needs_writeout);
1908 if ((retval || needs_writeout) &&
1909 fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx)) {
1910 pctx.errcode = quota_write_inode(ctx->qctx,
1911 1 << qtype);
1912 if (pctx.errcode)
1913 (void) fix_problem(ctx,
1914 PR_6_WRITE_QUOTAS, &pctx);
1915 }
1916 }
1917 quota_release_context(&ctx->qctx);
1918 }
1919
1920 if (run_result == E2F_FLAG_RESTART) {
1921 log_out(ctx, "%s",
1922 _("Restarting e2fsck from the beginning...\n"));
1923 retval = e2fsck_reset_context(ctx);
1924 if (retval) {
1925 com_err(ctx->program_name, retval, "%s",
1926 _("while resetting context"));
1927 fatal_error(ctx, 0);
1928 }
1929 ext2fs_close_free(&ctx->fs);
1930 goto restart;
1931 }
1932
1933 #ifdef MTRACE
1934 mtrace_print("Cleanup");
1935 #endif
1936 was_changed = ext2fs_test_changed(fs);
1937 if (!(ctx->flags & E2F_FLAG_RUN_RETURN) &&
1938 !(ctx->options & E2F_OPT_READONLY)) {
1939 if (ext2fs_test_valid(fs)) {
1940 if (!(sb->s_state & EXT2_VALID_FS))
1941 exit_value |= FSCK_NONDESTRUCT;
1942 sb->s_state = EXT2_VALID_FS;
1943 if (check_backup_super_block(ctx))
1944 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1945 } else
1946 sb->s_state &= ~EXT2_VALID_FS;
1947 if (!(ctx->flags & E2F_FLAG_TIME_INSANE))
1948 sb->s_lastcheck = ctx->now;
1949 sb->s_mnt_count = 0;
1950 memset(((char *) sb) + EXT4_S_ERR_START, 0, EXT4_S_ERR_LEN);
1951 pctx.errcode = ext2fs_set_gdt_csum(ctx->fs);
1952 if (pctx.errcode)
1953 fix_problem(ctx, PR_6_SET_BG_CHECKSUM, &pctx);
1954 ext2fs_mark_super_dirty(fs);
1955 }
1956
1957 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
1958 (ctx->options & E2F_OPT_UNSHARE_BLOCKS) &&
1959 (ctx->options & E2F_OPT_NO))
1960 /* Don't try to write or flush I/O, we just wanted to know whether or
1961 * not there were enough free blocks to undo deduplication.
1962 */
1963 goto skip_write;
1964
1965 if (!(ctx->options & E2F_OPT_READONLY)) {
1966 e2fsck_write_bitmaps(ctx);
1967 if (fs->flags & EXT2_FLAG_DIRTY) {
1968 pctx.errcode = ext2fs_flush(ctx->fs);
1969 if (pctx.errcode)
1970 fix_problem(ctx, PR_6_FLUSH_FILESYSTEM, &pctx);
1971 }
1972 pctx.errcode = io_channel_flush(ctx->fs->io);
1973 if (pctx.errcode)
1974 fix_problem(ctx, PR_6_IO_FLUSH, &pctx);
1975 }
1976
1977 if (was_changed) {
1978 int fs_fixed = (ctx->flags & E2F_FLAG_PROBLEMS_FIXED);
1979
1980 if (fs_fixed)
1981 exit_value |= FSCK_NONDESTRUCT;
1982 if (!(ctx->options & E2F_OPT_PREEN)) {
1983 #if 0 /* Do this later; it breaks too many tests' golden outputs */
1984 log_out(ctx, fs_fixed ?
1985 _("\n%s: ***** FILE SYSTEM ERRORS "
1986 "CORRECTED *****\n") :
1987 _("%s: File system was modified.\n"),
1988 ctx->device_name);
1989 #else
1990 log_out(ctx,
1991 _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1992 ctx->device_name);
1993 #endif
1994 }
1995 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1996 log_out(ctx, _("%s: ***** REBOOT SYSTEM *****\n"),
1997 ctx->device_name);
1998 exit_value |= FSCK_REBOOT;
1999 }
2000 }
2001
2002 skip_write:
2003 if (!ext2fs_test_valid(fs) ||
2004 ((exit_value & FSCK_CANCELED) &&
2005 (sb->s_state & EXT2_ERROR_FS))) {
2006 log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has "
2007 "errors **********\n\n"), ctx->device_name);
2008 exit_value |= FSCK_UNCORRECTED;
2009 exit_value &= ~FSCK_NONDESTRUCT;
2010 }
2011 if (exit_value & FSCK_CANCELED) {
2012 int allow_cancellation;
2013
2014 profile_get_boolean(ctx->profile, "options",
2015 "allow_cancellation", 0, 0,
2016 &allow_cancellation);
2017 exit_value &= ~FSCK_NONDESTRUCT;
2018 if (allow_cancellation && ext2fs_test_valid(fs) &&
2019 (sb->s_state & EXT2_VALID_FS) &&
2020 !(sb->s_state & EXT2_ERROR_FS))
2021 exit_value = 0;
2022 } else
2023 show_stats(ctx);
2024
2025 print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
2026
2027 ext2fs_close_free(&ctx->fs);
2028 free(ctx->journal_name);
2029
2030 if (ctx->logf)
2031 fprintf(ctx->logf, "Exit status: %d\n", exit_value);
2032 e2fsck_free_context(ctx);
2033 remove_error_table(&et_ext2_error_table);
2034 remove_error_table(&et_prof_error_table);
2035 return exit_value;
2036 }
2037