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Commit | Line | Data |
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607c2a72 | 1 | /* |
41e32d9f | 2 | * fsck --- A generic, parallelizing front-end for the fsck program. |
607c2a72 KZ |
3 | * It will automatically try to run fsck programs in parallel if the |
4 | * devices are on separate spindles. It is based on the same ideas as | |
5 | * the generic front end for fsck by David Engel and Fred van Kempen, | |
6 | * but it has been completely rewritten from scratch to support | |
7 | * parallel execution. | |
8 | * | |
9 | * Written by Theodore Ts'o, <tytso@mit.edu> | |
10 | * | |
11 | * Miquel van Smoorenburg (miquels@drinkel.ow.org) 20-Oct-1994: | |
12 | * o Changed -t fstype to behave like with mount when -A (all file | |
13 | * systems) or -M (like mount) is specified. | |
14 | * o fsck looks if it can find the fsck.type program to decide | |
15 | * if it should ignore the fs type. This way more fsck programs | |
16 | * can be added without changing this front-end. | |
17 | * o -R flag skip root file system. | |
18 | * | |
19 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, | |
20 | * 2001, 2002, 2003, 2004, 2005 by Theodore Ts'o. | |
21 | * | |
41e32d9f | 22 | * Copyright (C) 2009, 2012 Karel Zak <kzak@redhat.com> |
607c2a72 KZ |
23 | * |
24 | * This file may be redistributed under the terms of the GNU Public | |
25 | * License. | |
26 | */ | |
27 | ||
28 | #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */ | |
29 | ||
30 | #include <sys/types.h> | |
31 | #include <sys/wait.h> | |
607c2a72 | 32 | #include <sys/stat.h> |
dd0bd943 KZ |
33 | #include <sys/file.h> |
34 | #include <fcntl.h> | |
607c2a72 KZ |
35 | #include <limits.h> |
36 | #include <stdio.h> | |
37 | #include <ctype.h> | |
38 | #include <string.h> | |
39 | #include <time.h> | |
40 | #include <stdlib.h> | |
607c2a72 KZ |
41 | #include <paths.h> |
42 | #include <unistd.h> | |
43 | #include <errno.h> | |
607c2a72 | 44 | #include <signal.h> |
0c0f93fc KZ |
45 | #include <dirent.h> |
46 | #include <blkid.h> | |
2b505124 | 47 | #include <libmount.h> |
607c2a72 KZ |
48 | |
49 | #include "nls.h" | |
50 | #include "pathnames.h" | |
947558f5 | 51 | #include "exitcodes.h" |
93bd18bc | 52 | #include "c.h" |
0a09eb4e | 53 | |
947558f5 | 54 | #define XALLOC_EXIT_CODE FSCK_EX_ERROR |
0a09eb4e | 55 | #include "xalloc.h" |
607c2a72 | 56 | |
7ac166bf KZ |
57 | #ifndef DEFAULT_FSTYPE |
58 | # define DEFAULT_FSTYPE "ext2" | |
59 | #endif | |
60 | ||
61 | #define MAX_DEVICES 32 | |
62 | #define MAX_ARGS 32 | |
63 | ||
607c2a72 KZ |
64 | static const char *ignored_types[] = { |
65 | "ignore", | |
66 | "iso9660", | |
607c2a72 | 67 | "sw", |
607c2a72 KZ |
68 | NULL |
69 | }; | |
70 | ||
71 | static const char *really_wanted[] = { | |
72 | "minix", | |
73 | "ext2", | |
74 | "ext3", | |
75 | "ext4", | |
76 | "ext4dev", | |
77 | "jfs", | |
78 | "reiserfs", | |
79 | "xiafs", | |
80 | "xfs", | |
81 | NULL | |
82 | }; | |
83 | ||
7ac166bf KZ |
84 | /* |
85 | * Internal structure for mount tabel entries. | |
86 | */ | |
87 | struct fsck_fs_data | |
88 | { | |
89 | const char *device; | |
90 | dev_t disk; | |
91 | unsigned int stacked:1, | |
92 | done:1, | |
93 | eval_device:1; | |
94 | }; | |
95 | ||
96 | /* | |
97 | * Structure to allow exit codes to be stored | |
98 | */ | |
99 | struct fsck_instance { | |
100 | int pid; | |
101 | int flags; /* FLAG_{DONE|PROGRESS} */ | |
102 | int lock; /* flock()ed whole disk file descriptor or -1 */ | |
103 | int exit_status; | |
104 | time_t start_time; | |
105 | char * prog; | |
106 | char * type; | |
107 | ||
108 | struct libmnt_fs *fs; | |
109 | struct fsck_instance *next; | |
110 | }; | |
111 | ||
112 | #define FLAG_DONE 1 | |
113 | #define FLAG_PROGRESS 2 | |
607c2a72 KZ |
114 | |
115 | /* | |
116 | * Global variables for options | |
117 | */ | |
5894bcd4 KZ |
118 | static char *devices[MAX_DEVICES]; |
119 | static char *args[MAX_ARGS]; | |
120 | static int num_devices, num_args; | |
121 | ||
122 | static int lockdisk; | |
123 | static int verbose; | |
124 | static int doall; | |
125 | static int noexecute; | |
126 | static int serialize; | |
127 | static int skip_root; | |
128 | static int ignore_mounted; | |
129 | static int notitle; | |
130 | static int parallel_root; | |
131 | static int progress; | |
132 | static int progress_fd; | |
133 | static int force_all_parallel; | |
134 | ||
135 | static int num_running; | |
136 | static int max_running; | |
137 | ||
138 | static volatile int cancel_requested; | |
139 | static int kill_sent; | |
140 | static char *fstype; | |
141 | static struct fsck_instance *instance_list; | |
142 | ||
143 | static const char fsck_prefix_path[] = FS_SEARCH_PATH; | |
144 | static char *fsck_path; | |
145 | ||
146 | /* parsed fstab and mtab */ | |
67f09eae | 147 | static struct libmnt_table *fstab, *mtab; |
e33b39a8 | 148 | static struct libmnt_cache *mntcache; |
2b505124 KZ |
149 | |
150 | static int count_slaves(dev_t disk); | |
151 | ||
607c2a72 KZ |
152 | static int string_to_int(const char *s) |
153 | { | |
154 | long l; | |
155 | char *p; | |
156 | ||
157 | l = strtol(s, &p, 0); | |
158 | if (*p || l == LONG_MIN || l == LONG_MAX || l < 0 || l > INT_MAX) | |
159 | return -1; | |
160 | else | |
161 | return (int) l; | |
162 | } | |
163 | ||
67f09eae KZ |
164 | static int is_mounted(struct libmnt_fs *fs) |
165 | { | |
166 | int rc; | |
167 | ||
168 | if (!mtab) { | |
169 | mtab = mnt_new_table(); | |
170 | if (!mtab) | |
171 | err(FSCK_EX_ERROR, ("failed to initialize libmount table")); | |
172 | if (!mntcache) | |
173 | mntcache = mnt_new_cache(); | |
174 | mnt_table_set_cache(mtab, mntcache); | |
175 | mnt_table_parse_mtab(mtab, NULL); | |
176 | } | |
177 | ||
178 | rc = mnt_table_is_fs_mounted(mtab, fs); | |
179 | if (verbose) { | |
180 | if (rc) | |
181 | printf(_("%s is mounted\n"), mnt_fs_get_target(fs)); | |
182 | else | |
183 | printf(_("%s is not mounted\n"), mnt_fs_get_target(fs)); | |
184 | } | |
185 | return rc; | |
186 | } | |
187 | ||
2b505124 | 188 | static int ignore(struct libmnt_fs *); |
607c2a72 | 189 | |
2b505124 | 190 | static struct fsck_fs_data *fs_create_data(struct libmnt_fs *fs) |
607c2a72 | 191 | { |
2b505124 | 192 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); |
607c2a72 | 193 | |
2b505124 KZ |
194 | if (!data) { |
195 | data = xcalloc(1, sizeof(*data)); | |
196 | mnt_fs_set_userdata(fs, data); | |
197 | } | |
198 | return data; | |
607c2a72 KZ |
199 | } |
200 | ||
2b505124 KZ |
201 | /* |
202 | * fs from fstab might contains real device name as well as symlink, | |
203 | * LABEL or UUID, this function returns canonicalized result. | |
204 | */ | |
205 | static const char *fs_get_device(struct libmnt_fs *fs) | |
607c2a72 | 206 | { |
2b505124 | 207 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); |
607c2a72 | 208 | |
2b505124 KZ |
209 | if (!data || !data->eval_device) { |
210 | const char *spec = mnt_fs_get_source(fs); | |
211 | ||
212 | if (!data) | |
213 | data = fs_create_data(fs); | |
214 | ||
215 | data->eval_device = 1; | |
216 | data->device = mnt_resolve_spec(spec, mnt_table_get_cache(fstab)); | |
217 | if (!data->device) | |
2a24e16e | 218 | data->device = xstrdup(spec); |
607c2a72 | 219 | } |
2b505124 KZ |
220 | |
221 | return data->device; | |
607c2a72 KZ |
222 | } |
223 | ||
2b505124 | 224 | static dev_t fs_get_disk(struct libmnt_fs *fs, int check) |
607c2a72 | 225 | { |
2b505124 KZ |
226 | struct fsck_fs_data *data; |
227 | const char *device; | |
228 | struct stat st; | |
229 | ||
230 | data = mnt_fs_get_userdata(fs); | |
231 | if (data && data->disk) | |
232 | return data->disk; | |
607c2a72 | 233 | |
2b505124 | 234 | if (!check) |
607c2a72 KZ |
235 | return 0; |
236 | ||
2b505124 KZ |
237 | if (mnt_fs_is_netfs(fs) || mnt_fs_is_pseudofs(fs)) |
238 | return 0; | |
607c2a72 | 239 | |
2b505124 KZ |
240 | device = fs_get_device(fs); |
241 | if (!device) | |
242 | return 0; | |
607c2a72 | 243 | |
2b505124 | 244 | data = fs_create_data(fs); |
607c2a72 | 245 | |
2b505124 KZ |
246 | if (!stat(device, &st) && |
247 | !blkid_devno_to_wholedisk(st.st_rdev, NULL, 0, &data->disk)) { | |
248 | ||
249 | if (data->disk) | |
250 | data->stacked = count_slaves(data->disk) > 0 ? 1 : 0; | |
251 | return data->disk; | |
607c2a72 | 252 | } |
2b505124 | 253 | return 0; |
607c2a72 KZ |
254 | } |
255 | ||
2b505124 | 256 | static int fs_is_stacked(struct libmnt_fs *fs) |
dd0bd943 | 257 | { |
2b505124 KZ |
258 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); |
259 | return data ? data->stacked : 0; | |
260 | } | |
dd0bd943 | 261 | |
2b505124 KZ |
262 | static int fs_is_done(struct libmnt_fs *fs) |
263 | { | |
264 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); | |
265 | return data ? data->done : 0; | |
266 | } | |
dd0bd943 | 267 | |
2b505124 KZ |
268 | static void fs_set_done(struct libmnt_fs *fs) |
269 | { | |
270 | struct fsck_fs_data *data = fs_create_data(fs); | |
271 | ||
272 | if (data) | |
273 | data->done = 1; | |
dd0bd943 KZ |
274 | } |
275 | ||
276 | static int is_irrotational_disk(dev_t disk) | |
277 | { | |
278 | char path[PATH_MAX]; | |
279 | FILE *f; | |
280 | int rc, x; | |
281 | ||
2b505124 | 282 | |
dd0bd943 KZ |
283 | rc = snprintf(path, sizeof(path), |
284 | "/sys/dev/block/%d:%d/queue/rotational", | |
285 | major(disk), minor(disk)); | |
286 | ||
0a09eb4e | 287 | if (rc < 0 || (unsigned int) (rc + 1) > sizeof(path)) |
dd0bd943 KZ |
288 | return 0; |
289 | ||
290 | f = fopen(path, "r"); | |
291 | if (!f) | |
292 | return 0; | |
293 | ||
0a09eb4e SK |
294 | rc = fscanf(f, "%d", &x); |
295 | if (rc != 1) { | |
296 | if (ferror(f)) | |
297 | warn(_("failed to read: %s"), path); | |
298 | else | |
299 | warnx(_("parse error: %s"), path); | |
300 | } | |
dd0bd943 KZ |
301 | fclose(f); |
302 | ||
303 | return rc == 1 ? !x : 0; | |
304 | } | |
305 | ||
306 | static void lock_disk(struct fsck_instance *inst) | |
307 | { | |
2b505124 | 308 | dev_t disk = fs_get_disk(inst->fs, 1); |
dd0bd943 KZ |
309 | char *diskname; |
310 | ||
311 | if (!disk || is_irrotational_disk(disk)) | |
312 | return; | |
313 | ||
314 | diskname = blkid_devno_to_devname(disk); | |
315 | if (!diskname) | |
316 | return; | |
317 | ||
318 | if (verbose) | |
319 | printf(_("Locking disk %s ... "), diskname); | |
320 | ||
321 | inst->lock = open(diskname, O_CLOEXEC | O_RDONLY); | |
322 | if (inst->lock >= 0) { | |
323 | int rc = -1; | |
324 | ||
325 | /* inform users that we're waiting on the lock */ | |
326 | if (verbose && | |
327 | (rc = flock(inst->lock, LOCK_EX | LOCK_NB)) != 0 && | |
328 | errno == EWOULDBLOCK) | |
329 | printf(_("(waiting) ")); | |
330 | ||
331 | if (rc != 0 && flock(inst->lock, LOCK_EX) != 0) { | |
332 | close(inst->lock); /* failed */ | |
333 | inst->lock = -1; | |
334 | } | |
335 | } | |
336 | ||
337 | if (verbose) | |
fcc058f4 BS |
338 | /* TRANSLATORS: These are followups to "Locking disk...". */ |
339 | printf("%s.\n", inst->lock >= 0 ? _("succeeded") : _("failed")); | |
dd0bd943 KZ |
340 | |
341 | free(diskname); | |
342 | return; | |
343 | } | |
344 | ||
345 | static void unlock_disk(struct fsck_instance *inst) | |
346 | { | |
347 | if (inst->lock >= 0) { | |
348 | /* explicitly unlock, don't rely on close(), maybe some library | |
349 | * (e.g. liblkid) has still open the device. | |
350 | */ | |
351 | flock(inst->lock, LOCK_UN); | |
352 | close(inst->lock); | |
353 | } | |
354 | } | |
355 | ||
607c2a72 KZ |
356 | static void free_instance(struct fsck_instance *i) |
357 | { | |
dd0bd943 KZ |
358 | if (lockdisk) |
359 | unlock_disk(i); | |
7009077b | 360 | free(i->prog); |
607c2a72 KZ |
361 | free(i); |
362 | return; | |
363 | } | |
364 | ||
2b505124 | 365 | static struct libmnt_fs *add_dummy_fs(const char *device) |
607c2a72 | 366 | { |
2b505124 | 367 | struct libmnt_fs *fs = mnt_new_fs(); |
607c2a72 | 368 | |
2b505124 KZ |
369 | if (fs && mnt_fs_set_source(fs, device) == 0 && |
370 | mnt_table_add_fs(fstab, fs) == 0) | |
371 | return fs; | |
607c2a72 | 372 | |
2b505124 KZ |
373 | mnt_free_fs(fs); |
374 | err(FSCK_EX_ERROR, _("failed to setup description for %s"), device); | |
375 | } | |
607c2a72 | 376 | |
2b505124 | 377 | static void fs_interpret_type(struct libmnt_fs *fs) |
607c2a72 | 378 | { |
2b505124 KZ |
379 | const char *device; |
380 | const char *type = mnt_fs_get_fstype(fs); | |
607c2a72 | 381 | |
2b505124 KZ |
382 | if (type && strcmp(type, "auto") != 0) |
383 | return; | |
607c2a72 | 384 | |
2b505124 | 385 | mnt_fs_set_fstype(fs, NULL); |
607c2a72 | 386 | |
2b505124 KZ |
387 | device = fs_get_device(fs); |
388 | if (device) { | |
389 | int ambi = 0; | |
607c2a72 | 390 | |
2b505124 KZ |
391 | type = mnt_get_fstype(device, &ambi, mnt_table_get_cache(fstab)); |
392 | if (!ambi) | |
393 | mnt_fs_set_fstype(fs, type); | |
394 | } | |
607c2a72 KZ |
395 | } |
396 | ||
2b505124 KZ |
397 | static int parser_errcb(struct libmnt_table *tb __attribute__ ((__unused__)), |
398 | const char *filename, int line) | |
607c2a72 | 399 | { |
2b505124 KZ |
400 | warnx(_("%s: parse error at line %d -- ignore"), filename, line); |
401 | return 0; | |
607c2a72 KZ |
402 | } |
403 | ||
404 | /* | |
405 | * Load the filesystem database from /etc/fstab | |
406 | */ | |
2b505124 | 407 | static void load_fs_info(void) |
607c2a72 | 408 | { |
2b505124 | 409 | const char *path; |
607c2a72 | 410 | |
2b505124 KZ |
411 | fstab = mnt_new_table(); |
412 | if (!fstab) | |
413 | err(FSCK_EX_ERROR, ("failed to initialize libmount table")); | |
607c2a72 | 414 | |
2b505124 | 415 | mnt_table_set_parser_errcb(fstab, parser_errcb); |
e33b39a8 | 416 | mnt_table_set_cache(fstab, mntcache); |
2b505124 KZ |
417 | |
418 | errno = 0; | |
419 | ||
420 | /* | |
421 | * Let's follow libmount defauls if $FSTAB_FILE is not specified | |
422 | */ | |
423 | path = getenv("FSTAB_FILE"); | |
424 | ||
425 | if (mnt_table_parse_fstab(fstab, path)) { | |
426 | mnt_free_table(fstab); | |
427 | if (!path) | |
428 | path = mnt_get_fstab_path(); | |
429 | if (errno) | |
430 | warn(_("%s: failed to parse fstab"), path); | |
431 | else | |
432 | warnx(_("%s: failed to parse fstab"), path); | |
607c2a72 KZ |
433 | } |
434 | } | |
435 | ||
e33b39a8 KZ |
436 | /* |
437 | * Lookup filesys in /etc/fstab and return the corresponding entry. | |
438 | * The @path has to be real path (no TAG) by mnt_resolve_spec(). | |
439 | */ | |
440 | static struct libmnt_fs *lookup(char *path) | |
607c2a72 | 441 | { |
2b505124 | 442 | struct libmnt_fs *fs; |
607c2a72 | 443 | |
e33b39a8 | 444 | if (!path) |
607c2a72 KZ |
445 | return NULL; |
446 | ||
e33b39a8 | 447 | fs = mnt_table_find_srcpath(fstab, path, MNT_ITER_FORWARD); |
2b505124 | 448 | if (!fs) |
e33b39a8 | 449 | fs = mnt_table_find_target(fstab, path, MNT_ITER_FORWARD); |
607c2a72 KZ |
450 | |
451 | return fs; | |
452 | } | |
453 | ||
454 | /* Find fsck program for a given fs type. */ | |
2b505124 | 455 | static char *find_fsck(const char *type) |
607c2a72 | 456 | { |
41e32d9f KZ |
457 | char *s; |
458 | const char *tpl; | |
459 | static char prog[256]; | |
2a24e16e | 460 | char *p = xstrdup(fsck_path); |
41e32d9f KZ |
461 | struct stat st; |
462 | ||
463 | /* Are we looking for a program or just a type? */ | |
464 | tpl = (strncmp(type, "fsck.", 5) ? "%s/fsck.%s" : "%s/%s"); | |
465 | ||
466 | for(s = strtok(p, ":"); s; s = strtok(NULL, ":")) { | |
467 | sprintf(prog, tpl, s, type); | |
468 | if (stat(prog, &st) == 0) break; | |
469 | } | |
470 | free(p); | |
471 | ||
472 | return(s ? prog : NULL); | |
607c2a72 KZ |
473 | } |
474 | ||
7ac166bf | 475 | static int progress_active(void) |
607c2a72 KZ |
476 | { |
477 | struct fsck_instance *inst; | |
478 | ||
479 | for (inst = instance_list; inst; inst = inst->next) { | |
480 | if (inst->flags & FLAG_DONE) | |
481 | continue; | |
482 | if (inst->flags & FLAG_PROGRESS) | |
483 | return 1; | |
484 | } | |
485 | return 0; | |
486 | } | |
487 | ||
488 | /* | |
489 | * Execute a particular fsck program, and link it into the list of | |
490 | * child processes we are waiting for. | |
491 | */ | |
2b505124 | 492 | static int execute(const char *type, struct libmnt_fs *fs, int interactive) |
607c2a72 KZ |
493 | { |
494 | char *s, *argv[80], prog[80]; | |
495 | int argc, i; | |
496 | struct fsck_instance *inst, *p; | |
497 | pid_t pid; | |
498 | ||
0a09eb4e | 499 | inst = xmalloc(sizeof(struct fsck_instance)); |
607c2a72 KZ |
500 | memset(inst, 0, sizeof(struct fsck_instance)); |
501 | ||
502 | sprintf(prog, "fsck.%s", type); | |
2a24e16e | 503 | argv[0] = xstrdup(prog); |
607c2a72 KZ |
504 | argc = 1; |
505 | ||
506 | for (i=0; i <num_args; i++) | |
2a24e16e | 507 | argv[argc++] = xstrdup(args[i]); |
607c2a72 KZ |
508 | |
509 | if (progress) { | |
510 | if ((strcmp(type, "ext2") == 0) || | |
511 | (strcmp(type, "ext3") == 0) || | |
512 | (strcmp(type, "ext4") == 0) || | |
513 | (strcmp(type, "ext4dev") == 0)) { | |
514 | char tmp[80]; | |
515 | ||
516 | tmp[0] = 0; | |
517 | if (!progress_active()) { | |
518 | snprintf(tmp, 80, "-C%d", progress_fd); | |
519 | inst->flags |= FLAG_PROGRESS; | |
520 | } else if (progress_fd) | |
521 | snprintf(tmp, 80, "-C%d", progress_fd * -1); | |
522 | if (tmp[0]) | |
2a24e16e | 523 | argv[argc++] = xstrdup(tmp); |
607c2a72 KZ |
524 | } |
525 | } | |
526 | ||
2a24e16e | 527 | argv[argc++] = xstrdup(fs_get_device(fs)); |
607c2a72 KZ |
528 | argv[argc] = 0; |
529 | ||
530 | s = find_fsck(prog); | |
531 | if (s == NULL) { | |
0a09eb4e | 532 | warnx(_("%s: not found"), prog); |
607c2a72 KZ |
533 | free(inst); |
534 | return ENOENT; | |
535 | } | |
536 | ||
537 | if (verbose || noexecute) { | |
2b505124 KZ |
538 | const char *tgt = mnt_fs_get_target(fs); |
539 | ||
540 | if (!tgt) | |
541 | tgt = fs_get_device(fs); | |
542 | printf("[%s (%d) -- %s] ", s, num_running, tgt); | |
607c2a72 KZ |
543 | for (i=0; i < argc; i++) |
544 | printf("%s ", argv[i]); | |
545 | printf("\n"); | |
546 | } | |
547 | ||
dd0bd943 KZ |
548 | inst->fs = fs; |
549 | inst->lock = -1; | |
550 | ||
551 | if (lockdisk) | |
552 | lock_disk(inst); | |
553 | ||
607c2a72 KZ |
554 | /* Fork and execute the correct program. */ |
555 | if (noexecute) | |
556 | pid = -1; | |
557 | else if ((pid = fork()) < 0) { | |
558 | perror("fork"); | |
559 | free(inst); | |
560 | return errno; | |
561 | } else if (pid == 0) { | |
562 | if (!interactive) | |
563 | close(0); | |
564 | (void) execv(s, argv); | |
565 | perror(argv[0]); | |
566 | free(inst); | |
947558f5 | 567 | exit(FSCK_EX_ERROR); |
607c2a72 KZ |
568 | } |
569 | ||
570 | for (i=0; i < argc; i++) | |
571 | free(argv[i]); | |
572 | ||
573 | inst->pid = pid; | |
2a24e16e KZ |
574 | inst->prog = xstrdup(prog); |
575 | inst->type = xstrdup(type); | |
607c2a72 KZ |
576 | inst->start_time = time(0); |
577 | inst->next = NULL; | |
578 | ||
579 | /* | |
580 | * Find the end of the list, so we add the instance on at the end. | |
581 | */ | |
582 | for (p = instance_list; p && p->next; p = p->next); | |
583 | ||
584 | if (p) | |
585 | p->next = inst; | |
586 | else | |
587 | instance_list = inst; | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
592 | /* | |
593 | * Send a signal to all outstanding fsck child processes | |
594 | */ | |
595 | static int kill_all(int signum) | |
596 | { | |
597 | struct fsck_instance *inst; | |
598 | int n = 0; | |
599 | ||
600 | for (inst = instance_list; inst; inst = inst->next) { | |
601 | if (inst->flags & FLAG_DONE) | |
602 | continue; | |
603 | kill(inst->pid, signum); | |
604 | n++; | |
605 | } | |
606 | return n; | |
607 | } | |
608 | ||
609 | /* | |
610 | * Wait for one child process to exit; when it does, unlink it from | |
611 | * the list of executing child processes, and return it. | |
612 | */ | |
613 | static struct fsck_instance *wait_one(int flags) | |
614 | { | |
615 | int status; | |
616 | int sig; | |
617 | struct fsck_instance *inst, *inst2, *prev; | |
618 | pid_t pid; | |
619 | ||
620 | if (!instance_list) | |
621 | return NULL; | |
622 | ||
623 | if (noexecute) { | |
624 | inst = instance_list; | |
625 | prev = 0; | |
626 | #ifdef RANDOM_DEBUG | |
627 | while (inst->next && (random() & 1)) { | |
628 | prev = inst; | |
629 | inst = inst->next; | |
630 | } | |
631 | #endif | |
632 | inst->exit_status = 0; | |
633 | goto ret_inst; | |
634 | } | |
635 | ||
636 | /* | |
637 | * gcc -Wall fails saving throw against stupidity | |
638 | * (inst and prev are thought to be uninitialized variables) | |
639 | */ | |
640 | inst = prev = NULL; | |
641 | ||
642 | do { | |
643 | pid = waitpid(-1, &status, flags); | |
644 | if (cancel_requested && !kill_sent) { | |
645 | kill_all(SIGTERM); | |
646 | kill_sent++; | |
647 | } | |
648 | if ((pid == 0) && (flags & WNOHANG)) | |
649 | return NULL; | |
650 | if (pid < 0) { | |
651 | if ((errno == EINTR) || (errno == EAGAIN)) | |
652 | continue; | |
653 | if (errno == ECHILD) { | |
0a09eb4e | 654 | warnx(_("wait: no more child process?!?")); |
607c2a72 KZ |
655 | return NULL; |
656 | } | |
657 | perror("wait"); | |
658 | continue; | |
659 | } | |
660 | for (prev = 0, inst = instance_list; | |
661 | inst; | |
662 | prev = inst, inst = inst->next) { | |
663 | if (inst->pid == pid) | |
664 | break; | |
665 | } | |
666 | } while (!inst); | |
667 | ||
668 | if (WIFEXITED(status)) | |
669 | status = WEXITSTATUS(status); | |
670 | else if (WIFSIGNALED(status)) { | |
671 | sig = WTERMSIG(status); | |
672 | if (sig == SIGINT) { | |
947558f5 | 673 | status = FSCK_EX_UNCORRECTED; |
607c2a72 | 674 | } else { |
0a09eb4e SK |
675 | warnx(_("Warning... %s for device %s exited " |
676 | "with signal %d."), | |
2b505124 | 677 | inst->prog, fs_get_device(inst->fs), sig); |
947558f5 | 678 | status = FSCK_EX_ERROR; |
607c2a72 KZ |
679 | } |
680 | } else { | |
0a09eb4e | 681 | warnx(_("%s %s: status is %x, should never happen."), |
2b505124 | 682 | inst->prog, fs_get_device(inst->fs), status); |
947558f5 | 683 | status = FSCK_EX_ERROR; |
607c2a72 KZ |
684 | } |
685 | inst->exit_status = status; | |
686 | inst->flags |= FLAG_DONE; | |
687 | if (progress && (inst->flags & FLAG_PROGRESS) && | |
688 | !progress_active()) { | |
689 | for (inst2 = instance_list; inst2; inst2 = inst2->next) { | |
690 | if (inst2->flags & FLAG_DONE) | |
691 | continue; | |
692 | if (strcmp(inst2->type, "ext2") && | |
693 | strcmp(inst2->type, "ext3") && | |
694 | strcmp(inst2->type, "ext4") && | |
695 | strcmp(inst2->type, "ext4dev")) | |
696 | continue; | |
697 | /* | |
698 | * If we've just started the fsck, wait a tiny | |
699 | * bit before sending the kill, to give it | |
700 | * time to set up the signal handler | |
701 | */ | |
702 | if (inst2->start_time < time(0)+2) { | |
703 | if (fork() == 0) { | |
704 | sleep(1); | |
705 | kill(inst2->pid, SIGUSR1); | |
947558f5 | 706 | exit(FSCK_EX_OK); |
607c2a72 KZ |
707 | } |
708 | } else | |
709 | kill(inst2->pid, SIGUSR1); | |
710 | inst2->flags |= FLAG_PROGRESS; | |
711 | break; | |
712 | } | |
713 | } | |
714 | ret_inst: | |
715 | if (prev) | |
716 | prev->next = inst->next; | |
717 | else | |
718 | instance_list = inst->next; | |
719 | if (verbose > 1) | |
720 | printf(_("Finished with %s (exit status %d)\n"), | |
2b505124 | 721 | fs_get_device(inst->fs), inst->exit_status); |
607c2a72 KZ |
722 | num_running--; |
723 | return inst; | |
724 | } | |
725 | ||
726 | #define FLAG_WAIT_ALL 0 | |
727 | #define FLAG_WAIT_ATLEAST_ONE 1 | |
728 | /* | |
729 | * Wait until all executing child processes have exited; return the | |
730 | * logical OR of all of their exit code values. | |
731 | */ | |
732 | static int wait_many(int flags) | |
733 | { | |
734 | struct fsck_instance *inst; | |
735 | int global_status = 0; | |
736 | int wait_flags = 0; | |
737 | ||
738 | while ((inst = wait_one(wait_flags))) { | |
739 | global_status |= inst->exit_status; | |
740 | free_instance(inst); | |
741 | #ifdef RANDOM_DEBUG | |
742 | if (noexecute && (flags & WNOHANG) && !(random() % 3)) | |
743 | break; | |
744 | #endif | |
745 | if (flags & FLAG_WAIT_ATLEAST_ONE) | |
746 | wait_flags = WNOHANG; | |
747 | } | |
748 | return global_status; | |
749 | } | |
750 | ||
751 | /* | |
752 | * Run the fsck program on a particular device | |
753 | * | |
754 | * If the type is specified using -t, and it isn't prefixed with "no" | |
755 | * (as in "noext2") and only one filesystem type is specified, then | |
756 | * use that type regardless of what is specified in /etc/fstab. | |
757 | * | |
758 | * If the type isn't specified by the user, then use either the type | |
759 | * specified in /etc/fstab, or DEFAULT_FSTYPE. | |
760 | */ | |
2b505124 | 761 | static int fsck_device(struct libmnt_fs *fs, int interactive) |
607c2a72 KZ |
762 | { |
763 | const char *type; | |
764 | int retval; | |
765 | ||
2b505124 KZ |
766 | fs_interpret_type(fs); |
767 | ||
768 | type = mnt_fs_get_fstype(fs); | |
607c2a72 | 769 | |
2b505124 KZ |
770 | if (type && strcmp(type, "auto") != 0) |
771 | ; | |
607c2a72 KZ |
772 | else if (fstype && strncmp(fstype, "no", 2) && |
773 | strncmp(fstype, "opts=", 5) && strncmp(fstype, "loop", 4) && | |
774 | !strchr(fstype, ',')) | |
775 | type = fstype; | |
776 | else | |
777 | type = DEFAULT_FSTYPE; | |
778 | ||
779 | num_running++; | |
0c0f93fc | 780 | retval = execute(type, fs, interactive); |
607c2a72 | 781 | if (retval) { |
0a09eb4e | 782 | warnx(_("error %d while executing fsck.%s for %s"), |
2b505124 | 783 | retval, type, fs_get_device(fs)); |
607c2a72 | 784 | num_running--; |
947558f5 | 785 | return FSCK_EX_ERROR; |
607c2a72 | 786 | } |
6c6f2af9 | 787 | return 0; |
607c2a72 KZ |
788 | } |
789 | ||
790 | ||
791 | /* | |
792 | * Deal with the fsck -t argument. | |
793 | */ | |
794 | struct fs_type_compile { | |
795 | char **list; | |
796 | int *type; | |
797 | int negate; | |
798 | } fs_type_compiled; | |
799 | ||
800 | #define FS_TYPE_NORMAL 0 | |
801 | #define FS_TYPE_OPT 1 | |
802 | #define FS_TYPE_NEGOPT 2 | |
803 | ||
607c2a72 KZ |
804 | static void compile_fs_type(char *fs_type, struct fs_type_compile *cmp) |
805 | { | |
5894bcd4 | 806 | char *cp, *list, *s; |
607c2a72 KZ |
807 | int num = 2; |
808 | int negate, first_negate = 1; | |
809 | ||
810 | if (fs_type) { | |
811 | for (cp=fs_type; *cp; cp++) { | |
812 | if (*cp == ',') | |
813 | num++; | |
814 | } | |
815 | } | |
816 | ||
0a09eb4e SK |
817 | cmp->list = xmalloc(num * sizeof(char *)); |
818 | cmp->type = xmalloc(num * sizeof(int)); | |
607c2a72 KZ |
819 | memset(cmp->list, 0, num * sizeof(char *)); |
820 | memset(cmp->type, 0, num * sizeof(int)); | |
821 | cmp->negate = 0; | |
822 | ||
823 | if (!fs_type) | |
824 | return; | |
825 | ||
2a24e16e | 826 | list = xstrdup(fs_type); |
607c2a72 KZ |
827 | num = 0; |
828 | s = strtok(list, ","); | |
829 | while(s) { | |
830 | negate = 0; | |
831 | if (strncmp(s, "no", 2) == 0) { | |
832 | s += 2; | |
833 | negate = 1; | |
834 | } else if (*s == '!') { | |
835 | s++; | |
836 | negate = 1; | |
837 | } | |
838 | if (strcmp(s, "loop") == 0) | |
839 | /* loop is really short-hand for opts=loop */ | |
840 | goto loop_special_case; | |
841 | else if (strncmp(s, "opts=", 5) == 0) { | |
842 | s += 5; | |
843 | loop_special_case: | |
844 | cmp->type[num] = negate ? FS_TYPE_NEGOPT : FS_TYPE_OPT; | |
845 | } else { | |
846 | if (first_negate) { | |
847 | cmp->negate = negate; | |
848 | first_negate = 0; | |
849 | } | |
850 | if ((negate && !cmp->negate) || | |
851 | (!negate && cmp->negate)) { | |
947558f5 | 852 | errx(FSCK_EX_USAGE, |
e0eadc0d SK |
853 | _("Either all or none of the filesystem types passed to -t must be prefixed\n" |
854 | "with 'no' or '!'.")); | |
607c2a72 KZ |
855 | } |
856 | } | |
857 | #if 0 | |
858 | printf("Adding %s to list (type %d).\n", s, cmp->type[num]); | |
859 | #endif | |
2a24e16e | 860 | cmp->list[num++] = xstrdup(s); |
607c2a72 KZ |
861 | s = strtok(NULL, ","); |
862 | } | |
863 | free(list); | |
864 | } | |
865 | ||
866 | /* | |
867 | * This function returns true if a particular option appears in a | |
868 | * comma-delimited options list | |
869 | */ | |
2b505124 | 870 | static int opt_in_list(const char *opt, const char *optlist) |
607c2a72 KZ |
871 | { |
872 | char *list, *s; | |
873 | ||
874 | if (!optlist) | |
875 | return 0; | |
2a24e16e | 876 | list = xstrdup(optlist); |
607c2a72 KZ |
877 | |
878 | s = strtok(list, ","); | |
879 | while(s) { | |
880 | if (strcmp(s, opt) == 0) { | |
881 | free(list); | |
882 | return 1; | |
883 | } | |
884 | s = strtok(NULL, ","); | |
885 | } | |
0a09eb4e | 886 | free(list); |
607c2a72 KZ |
887 | return 0; |
888 | } | |
889 | ||
890 | /* See if the filesystem matches the criteria given by the -t option */ | |
2b505124 | 891 | static int fs_match(struct libmnt_fs *fs, struct fs_type_compile *cmp) |
607c2a72 KZ |
892 | { |
893 | int n, ret = 0, checked_type = 0; | |
894 | char *cp; | |
895 | ||
896 | if (cmp->list == 0 || cmp->list[0] == 0) | |
897 | return 1; | |
898 | ||
899 | for (n=0; (cp = cmp->list[n]); n++) { | |
900 | switch (cmp->type[n]) { | |
901 | case FS_TYPE_NORMAL: | |
2b505124 KZ |
902 | { |
903 | const char *type = mnt_fs_get_fstype(fs); | |
904 | ||
607c2a72 | 905 | checked_type++; |
2b505124 | 906 | if (type && strcmp(cp, type) == 0) |
607c2a72 | 907 | ret = 1; |
607c2a72 | 908 | break; |
2b505124 | 909 | } |
607c2a72 | 910 | case FS_TYPE_NEGOPT: |
2b505124 | 911 | if (opt_in_list(cp, mnt_fs_get_options(fs))) |
607c2a72 KZ |
912 | return 0; |
913 | break; | |
914 | case FS_TYPE_OPT: | |
2b505124 | 915 | if (!opt_in_list(cp, mnt_fs_get_options(fs))) |
607c2a72 KZ |
916 | return 0; |
917 | break; | |
918 | } | |
919 | } | |
920 | if (checked_type == 0) | |
921 | return 1; | |
922 | return (cmp->negate ? !ret : ret); | |
923 | } | |
924 | ||
1bb516c3 LN |
925 | /* |
926 | * Check if a device exists | |
927 | */ | |
928 | static int device_exists(const char *device) | |
929 | { | |
930 | struct stat st; | |
931 | ||
932 | if (stat(device, &st) == -1) | |
933 | return 0; | |
934 | ||
935 | if (!S_ISBLK(st.st_mode)) | |
936 | return 0; | |
937 | ||
938 | return 1; | |
939 | } | |
940 | ||
2b505124 | 941 | static int fs_ignored_type(struct libmnt_fs *fs) |
e3174198 | 942 | { |
2b505124 KZ |
943 | const char **ip, *type; |
944 | ||
945 | if (mnt_fs_is_netfs(fs) || mnt_fs_is_pseudofs(fs) || mnt_fs_is_swaparea(fs)) | |
946 | return 1; | |
947 | ||
948 | type = mnt_fs_get_fstype(fs); | |
e3174198 | 949 | |
2b505124 KZ |
950 | for(ip = ignored_types; type && *ip; ip++) { |
951 | if (strcmp(type, *ip) == 0) | |
e3174198 KZ |
952 | return 1; |
953 | } | |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
607c2a72 | 958 | /* Check if we should ignore this filesystem. */ |
2b505124 | 959 | static int ignore(struct libmnt_fs *fs) |
607c2a72 | 960 | { |
2b505124 | 961 | const char **ip, *type; |
607c2a72 KZ |
962 | int wanted = 0; |
963 | ||
964 | /* | |
965 | * If the pass number is 0, ignore it. | |
966 | */ | |
2b505124 | 967 | if (mnt_fs_get_passno(fs) == 0) |
607c2a72 KZ |
968 | return 1; |
969 | ||
970 | /* | |
971 | * If this is a bind mount, ignore it. | |
972 | */ | |
2b505124 | 973 | if (opt_in_list("bind", mnt_fs_get_options(fs))) { |
0a09eb4e SK |
974 | warnx(_("%s: skipping bad line in /etc/fstab: " |
975 | "bind mount with nonzero fsck pass number"), | |
2b505124 | 976 | mnt_fs_get_target(fs)); |
607c2a72 KZ |
977 | return 1; |
978 | } | |
979 | ||
1bb516c3 LN |
980 | /* |
981 | * ignore devices that don't exist and have the "nofail" mount option | |
982 | */ | |
2b505124 KZ |
983 | if (!device_exists(fs_get_device(fs))) { |
984 | if (opt_in_list("nofail", mnt_fs_get_options(fs))) { | |
236acf2d KZ |
985 | if (verbose) |
986 | printf(_("%s: skipping nonexistent device\n"), | |
2b505124 | 987 | fs_get_device(fs)); |
236acf2d KZ |
988 | return 1; |
989 | } | |
1bb516c3 | 990 | if (verbose) |
236acf2d KZ |
991 | printf(_("%s: nonexistent device (\"nofail\" fstab " |
992 | "option may be used to skip this device)\n"), | |
2b505124 | 993 | fs_get_device(fs)); |
1bb516c3 LN |
994 | } |
995 | ||
2b505124 | 996 | fs_interpret_type(fs); |
607c2a72 KZ |
997 | |
998 | /* | |
999 | * If a specific fstype is specified, and it doesn't match, | |
1000 | * ignore it. | |
1001 | */ | |
3d4820f4 KZ |
1002 | if (!fs_match(fs, &fs_type_compiled)) |
1003 | return 1; | |
607c2a72 | 1004 | |
2b505124 KZ |
1005 | type = mnt_fs_get_fstype(fs); |
1006 | if (!type) | |
1007 | return 0; /* should not happen */ | |
1008 | ||
607c2a72 | 1009 | /* Are we ignoring this type? */ |
2b505124 | 1010 | if (fs_ignored_type(fs)) |
e3174198 | 1011 | return 1; |
607c2a72 KZ |
1012 | |
1013 | /* Do we really really want to check this fs? */ | |
1014 | for(ip = really_wanted; *ip; ip++) | |
2b505124 | 1015 | if (strcmp(type, *ip) == 0) { |
607c2a72 KZ |
1016 | wanted = 1; |
1017 | break; | |
1018 | } | |
1019 | ||
1020 | /* See if the <fsck.fs> program is available. */ | |
2b505124 | 1021 | if (find_fsck(type) == NULL) { |
607c2a72 | 1022 | if (wanted) |
0a09eb4e | 1023 | warnx(_("cannot check %s: fsck.%s not found"), |
2b505124 | 1024 | fs_get_device(fs), type); |
607c2a72 KZ |
1025 | return 1; |
1026 | } | |
1027 | ||
1028 | /* We can and want to check this file system type. */ | |
1029 | return 0; | |
1030 | } | |
1031 | ||
0c0f93fc KZ |
1032 | static int count_slaves(dev_t disk) |
1033 | { | |
1034 | DIR *dir; | |
1035 | struct dirent *dp; | |
1036 | char dirname[PATH_MAX]; | |
1037 | int count = 0; | |
1038 | ||
1039 | snprintf(dirname, sizeof(dirname), | |
1040 | "/sys/dev/block/%u:%u/slaves/", | |
1041 | major(disk), minor(disk)); | |
1042 | ||
1043 | if (!(dir = opendir(dirname))) | |
1044 | return -1; | |
1045 | ||
1046 | while ((dp = readdir(dir)) != 0) { | |
1047 | #ifdef _DIRENT_HAVE_D_TYPE | |
1048 | if (dp->d_type != DT_UNKNOWN && dp->d_type != DT_LNK) | |
1049 | continue; | |
1050 | #endif | |
1051 | if (dp->d_name[0] == '.' && | |
1052 | ((dp->d_name[1] == 0) || | |
1053 | ((dp->d_name[1] == '.') && (dp->d_name[2] == 0)))) | |
1054 | continue; | |
1055 | ||
1056 | count++; | |
1057 | } | |
1058 | closedir(dir); | |
1059 | return count; | |
1060 | } | |
1061 | ||
607c2a72 KZ |
1062 | /* |
1063 | * Returns TRUE if a partition on the same disk is already being | |
1064 | * checked. | |
1065 | */ | |
2b505124 | 1066 | static int disk_already_active(struct libmnt_fs *fs) |
607c2a72 KZ |
1067 | { |
1068 | struct fsck_instance *inst; | |
2b505124 | 1069 | dev_t disk; |
607c2a72 KZ |
1070 | |
1071 | if (force_all_parallel) | |
1072 | return 0; | |
1073 | ||
2b505124 | 1074 | if (instance_list && fs_is_stacked(instance_list->fs)) |
0c0f93fc | 1075 | /* any instance for a stacked device is already running */ |
607c2a72 | 1076 | return 1; |
607c2a72 | 1077 | |
2b505124 | 1078 | disk = fs_get_disk(fs, 1); |
0c0f93fc | 1079 | |
607c2a72 KZ |
1080 | /* |
1081 | * If we don't know the base device, assume that the device is | |
1082 | * already active if there are any fsck instances running. | |
0c0f93fc KZ |
1083 | * |
1084 | * Don't check a stacked device with any other disk too. | |
607c2a72 | 1085 | */ |
2b505124 | 1086 | if (!disk || fs_is_stacked(fs)) |
607c2a72 | 1087 | return (instance_list != 0); |
0c0f93fc | 1088 | |
607c2a72 | 1089 | for (inst = instance_list; inst; inst = inst->next) { |
2b505124 KZ |
1090 | dev_t idisk = fs_get_disk(inst->fs, 0); |
1091 | ||
1092 | if (!idisk || disk == idisk) | |
607c2a72 | 1093 | return 1; |
607c2a72 | 1094 | } |
607c2a72 KZ |
1095 | return 0; |
1096 | } | |
1097 | ||
1098 | /* Check all file systems, using the /etc/fstab table. */ | |
2b505124 | 1099 | static int check_all(void) |
607c2a72 | 1100 | { |
607c2a72 KZ |
1101 | int not_done_yet = 1; |
1102 | int passno = 1; | |
1103 | int pass_done; | |
2b505124 | 1104 | int status = FSCK_EX_OK; |
607c2a72 | 1105 | |
2b505124 KZ |
1106 | struct libmnt_fs *fs; |
1107 | struct libmnt_iter *itr = mnt_new_iter(MNT_ITER_FORWARD); | |
1108 | ||
1109 | if (!itr) | |
1110 | err(FSCK_EX_ERROR, _("failed to allocate iterator")); | |
607c2a72 KZ |
1111 | |
1112 | /* | |
1113 | * Do an initial scan over the filesystem; mark filesystems | |
1114 | * which should be ignored as done, and resolve any "auto" | |
1115 | * filesystem types (done as a side-effect of calling ignore()). | |
1116 | */ | |
2b505124 KZ |
1117 | while (mnt_table_next_fs(fstab, itr, &fs) == 0) { |
1118 | if (ignore(fs)) { | |
1119 | fs_set_done(fs); | |
1120 | continue; | |
1121 | } | |
607c2a72 KZ |
1122 | } |
1123 | ||
2b505124 KZ |
1124 | if (verbose) |
1125 | fputs(_("Checking all file systems.\n"), stdout); | |
1126 | ||
607c2a72 KZ |
1127 | /* |
1128 | * Find and check the root filesystem. | |
1129 | */ | |
1130 | if (!parallel_root) { | |
2b505124 | 1131 | fs = mnt_table_find_target(fstab, "/", MNT_ITER_FORWARD); |
607c2a72 | 1132 | if (fs) { |
2b505124 KZ |
1133 | if (!skip_root && |
1134 | !fs_is_done(fs) && | |
67f09eae | 1135 | !(ignore_mounted && is_mounted(fs))) { |
6c6f2af9 | 1136 | status |= fsck_device(fs, 1); |
607c2a72 | 1137 | status |= wait_many(FLAG_WAIT_ALL); |
2b505124 KZ |
1138 | if (status > FSCK_EX_NONDESTRUCT) { |
1139 | mnt_free_iter(itr); | |
607c2a72 | 1140 | return status; |
2b505124 | 1141 | } |
607c2a72 | 1142 | } |
2b505124 | 1143 | fs_set_done(fs); |
607c2a72 KZ |
1144 | } |
1145 | } | |
2b505124 | 1146 | |
607c2a72 KZ |
1147 | /* |
1148 | * This is for the bone-headed user who enters the root | |
1149 | * filesystem twice. Skip root will skep all root entries. | |
1150 | */ | |
2b505124 KZ |
1151 | if (skip_root) { |
1152 | mnt_reset_iter(itr, MNT_ITER_FORWARD); | |
1153 | ||
1154 | while(mnt_table_next_fs(fstab, itr, &fs) == 0) { | |
1155 | const char *tgt = mnt_fs_get_target(fs); | |
1156 | ||
1157 | if (tgt && strcmp(tgt, "/") == 0) | |
1158 | fs_set_done(fs); | |
1159 | } | |
1160 | } | |
607c2a72 KZ |
1161 | |
1162 | while (not_done_yet) { | |
1163 | not_done_yet = 0; | |
1164 | pass_done = 1; | |
1165 | ||
2b505124 KZ |
1166 | mnt_reset_iter(itr, MNT_ITER_FORWARD); |
1167 | ||
1168 | while(mnt_table_next_fs(fstab, itr, &fs) == 0) { | |
1169 | ||
607c2a72 KZ |
1170 | if (cancel_requested) |
1171 | break; | |
2b505124 | 1172 | if (fs_is_done(fs)) |
607c2a72 KZ |
1173 | continue; |
1174 | /* | |
1175 | * If the filesystem's pass number is higher | |
1176 | * than the current pass number, then we don't | |
1177 | * do it yet. | |
1178 | */ | |
2b505124 | 1179 | if (mnt_fs_get_passno(fs) > passno) { |
607c2a72 KZ |
1180 | not_done_yet++; |
1181 | continue; | |
1182 | } | |
67f09eae | 1183 | if (ignore_mounted && is_mounted(fs)) { |
2b505124 | 1184 | fs_set_done(fs); |
607c2a72 KZ |
1185 | continue; |
1186 | } | |
1187 | /* | |
1188 | * If a filesystem on a particular device has | |
1189 | * already been spawned, then we need to defer | |
1190 | * this to another pass. | |
1191 | */ | |
0c0f93fc | 1192 | if (disk_already_active(fs)) { |
607c2a72 KZ |
1193 | pass_done = 0; |
1194 | continue; | |
1195 | } | |
1196 | /* | |
1197 | * Spawn off the fsck process | |
1198 | */ | |
6c6f2af9 | 1199 | status |= fsck_device(fs, serialize); |
2b505124 | 1200 | fs_set_done(fs); |
607c2a72 KZ |
1201 | |
1202 | /* | |
1203 | * Only do one filesystem at a time, or if we | |
1204 | * have a limit on the number of fsck's extant | |
1205 | * at one time, apply that limit. | |
1206 | */ | |
1207 | if (serialize || | |
1208 | (max_running && (num_running >= max_running))) { | |
1209 | pass_done = 0; | |
1210 | break; | |
1211 | } | |
1212 | } | |
1213 | if (cancel_requested) | |
1214 | break; | |
1215 | if (verbose > 1) | |
1216 | printf(_("--waiting-- (pass %d)\n"), passno); | |
2b505124 | 1217 | |
607c2a72 KZ |
1218 | status |= wait_many(pass_done ? FLAG_WAIT_ALL : |
1219 | FLAG_WAIT_ATLEAST_ONE); | |
1220 | if (pass_done) { | |
1221 | if (verbose > 1) | |
1222 | printf("----------------------------------\n"); | |
1223 | passno++; | |
1224 | } else | |
1225 | not_done_yet++; | |
1226 | } | |
2b505124 | 1227 | |
607c2a72 KZ |
1228 | if (cancel_requested && !kill_sent) { |
1229 | kill_all(SIGTERM); | |
1230 | kill_sent++; | |
1231 | } | |
2b505124 | 1232 | |
607c2a72 | 1233 | status |= wait_many(FLAG_WAIT_ATLEAST_ONE); |
2b505124 | 1234 | mnt_free_iter(itr); |
607c2a72 KZ |
1235 | return status; |
1236 | } | |
1237 | ||
0a09eb4e | 1238 | static void __attribute__((__noreturn__)) usage(void) |
607c2a72 | 1239 | { |
0a09eb4e SK |
1240 | printf(_("\nUsage:\n" |
1241 | " %s [fsck-options] [fs-options] [filesys ...]\n"), | |
1242 | program_invocation_short_name); | |
1243 | ||
1244 | puts(_( "\nOptions:\n" | |
e6e060ec KZ |
1245 | " -A check all filesystems\n" |
1246 | " -R skip root filesystem; useful only with `-A'\n" | |
1247 | " -M do not check mounted filesystems\n" | |
be060aa1 KZ |
1248 | " -t <type> specify filesystem types to be checked;\n" |
1249 | " type is allowed to be comma-separated list\n" | |
e6e060ec KZ |
1250 | " -P check filesystems in parallel, including root\n" |
1251 | " -s serialize fsck operations\n" | |
1252 | " -l lock the device using flock()\n" | |
1253 | " -N do not execute, just show what would be done\n" | |
1254 | " -T do not show the title on startup\n" | |
be060aa1 | 1255 | " -C <fd> display progress bar; file descriptor is for GUIs\n" |
e6e060ec KZ |
1256 | " -V explain what is being done\n" |
1257 | " -? display this help and exit\n\n" | |
0a09eb4e SK |
1258 | "See fsck.* commands for fs-options.")); |
1259 | ||
947558f5 | 1260 | exit(FSCK_EX_USAGE); |
607c2a72 KZ |
1261 | } |
1262 | ||
7ac166bf | 1263 | static void signal_cancel(int sig __attribute__((__unused__))) |
607c2a72 KZ |
1264 | { |
1265 | cancel_requested++; | |
1266 | } | |
1267 | ||
1268 | static void PRS(int argc, char *argv[]) | |
1269 | { | |
1270 | int i, j; | |
1271 | char *arg, *dev, *tmp = 0; | |
1272 | char options[128]; | |
1273 | int opt = 0; | |
1274 | int opts_for_fsck = 0; | |
1275 | struct sigaction sa; | |
1276 | ||
1277 | /* | |
1278 | * Set up signal action | |
1279 | */ | |
1280 | memset(&sa, 0, sizeof(struct sigaction)); | |
1281 | sa.sa_handler = signal_cancel; | |
1282 | sigaction(SIGINT, &sa, 0); | |
1283 | sigaction(SIGTERM, &sa, 0); | |
1284 | ||
1285 | num_devices = 0; | |
1286 | num_args = 0; | |
1287 | instance_list = 0; | |
1288 | ||
607c2a72 KZ |
1289 | for (i=1; i < argc; i++) { |
1290 | arg = argv[i]; | |
1291 | if (!arg) | |
1292 | continue; | |
1293 | if ((arg[0] == '/' && !opts_for_fsck) || strchr(arg, '=')) { | |
0a09eb4e | 1294 | if (num_devices >= MAX_DEVICES) |
947558f5 | 1295 | errx(FSCK_EX_ERROR, _("too many devices")); |
e33b39a8 KZ |
1296 | |
1297 | dev = mnt_resolve_spec(arg, mntcache); | |
1298 | ||
607c2a72 KZ |
1299 | if (!dev && strchr(arg, '=')) { |
1300 | /* | |
1301 | * Check to see if we failed because | |
1302 | * /proc/partitions isn't found. | |
1303 | */ | |
fb429f22 | 1304 | if (access(_PATH_PROC_PARTITIONS, R_OK) < 0) { |
0a09eb4e SK |
1305 | warn(_("couldn't open %s"), |
1306 | _PATH_PROC_PARTITIONS); | |
947558f5 | 1307 | errx(FSCK_EX_ERROR, _("Is /proc mounted?")); |
607c2a72 KZ |
1308 | } |
1309 | /* | |
1310 | * Check to see if this is because | |
1311 | * we're not running as root | |
1312 | */ | |
1313 | if (geteuid()) | |
947558f5 | 1314 | errx(FSCK_EX_ERROR, |
0a09eb4e SK |
1315 | _("must be root to scan for matching filesystems: %s"), |
1316 | arg); | |
607c2a72 | 1317 | else |
947558f5 | 1318 | errx(FSCK_EX_ERROR, |
0a09eb4e SK |
1319 | _("couldn't find matching filesystem: %s"), |
1320 | arg); | |
607c2a72 | 1321 | } |
2a24e16e | 1322 | devices[num_devices++] = dev ? dev : xstrdup(arg); |
607c2a72 KZ |
1323 | continue; |
1324 | } | |
1325 | if (arg[0] != '-' || opts_for_fsck) { | |
0a09eb4e | 1326 | if (num_args >= MAX_ARGS) |
947558f5 | 1327 | errx(FSCK_EX_ERROR, _("too many arguments")); |
2a24e16e | 1328 | args[num_args++] = xstrdup(arg); |
607c2a72 KZ |
1329 | continue; |
1330 | } | |
1331 | for (j=1; arg[j]; j++) { | |
1332 | if (opts_for_fsck) { | |
1333 | options[++opt] = arg[j]; | |
1334 | continue; | |
1335 | } | |
1336 | switch (arg[j]) { | |
1337 | case 'A': | |
0a09eb4e | 1338 | doall = 1; |
607c2a72 KZ |
1339 | break; |
1340 | case 'C': | |
0a09eb4e | 1341 | progress = 1; |
607c2a72 KZ |
1342 | if (arg[j+1]) { |
1343 | progress_fd = string_to_int(arg+j+1); | |
1344 | if (progress_fd < 0) | |
1345 | progress_fd = 0; | |
1346 | else | |
1347 | goto next_arg; | |
1348 | } else if ((i+1) < argc && | |
1349 | !strncmp(argv[i+1], "-", 1) == 0) { | |
1350 | progress_fd = string_to_int(argv[i]); | |
1351 | if (progress_fd < 0) | |
1352 | progress_fd = 0; | |
1353 | else { | |
f1c2eaac | 1354 | ++i; |
607c2a72 | 1355 | goto next_arg; |
607c2a72 KZ |
1356 | } |
1357 | } | |
1358 | break; | |
dd0bd943 | 1359 | case 'l': |
0a09eb4e | 1360 | lockdisk = 1; |
dd0bd943 | 1361 | break; |
607c2a72 KZ |
1362 | case 'V': |
1363 | verbose++; | |
1364 | break; | |
1365 | case 'N': | |
0a09eb4e | 1366 | noexecute = 1; |
607c2a72 KZ |
1367 | break; |
1368 | case 'R': | |
0a09eb4e | 1369 | skip_root = 1; |
607c2a72 KZ |
1370 | break; |
1371 | case 'T': | |
0a09eb4e | 1372 | notitle = 1; |
607c2a72 KZ |
1373 | break; |
1374 | case 'M': | |
0a09eb4e | 1375 | ignore_mounted = 1; |
607c2a72 KZ |
1376 | break; |
1377 | case 'P': | |
0a09eb4e | 1378 | parallel_root = 1; |
607c2a72 KZ |
1379 | break; |
1380 | case 's': | |
0a09eb4e | 1381 | serialize = 1; |
607c2a72 KZ |
1382 | break; |
1383 | case 't': | |
1384 | tmp = 0; | |
1385 | if (fstype) | |
1386 | usage(); | |
1387 | if (arg[j+1]) | |
1388 | tmp = arg+j+1; | |
1389 | else if ((i+1) < argc) | |
1390 | tmp = argv[++i]; | |
1391 | else | |
1392 | usage(); | |
2a24e16e | 1393 | fstype = xstrdup(tmp); |
607c2a72 KZ |
1394 | compile_fs_type(fstype, &fs_type_compiled); |
1395 | goto next_arg; | |
1396 | case '-': | |
1397 | opts_for_fsck++; | |
1398 | break; | |
1399 | case '?': | |
1400 | usage(); | |
1401 | break; | |
1402 | default: | |
1403 | options[++opt] = arg[j]; | |
1404 | break; | |
1405 | } | |
1406 | } | |
1407 | next_arg: | |
1408 | if (opt) { | |
1409 | options[0] = '-'; | |
1410 | options[++opt] = '\0'; | |
0a09eb4e | 1411 | if (num_args >= MAX_ARGS) |
947558f5 | 1412 | errx(FSCK_EX_ERROR, _("too many arguments")); |
2a24e16e | 1413 | args[num_args++] = xstrdup(options); |
607c2a72 KZ |
1414 | opt = 0; |
1415 | } | |
1416 | } | |
1417 | if (getenv("FSCK_FORCE_ALL_PARALLEL")) | |
1418 | force_all_parallel++; | |
1419 | if ((tmp = getenv("FSCK_MAX_INST"))) | |
1420 | max_running = atoi(tmp); | |
1421 | } | |
1422 | ||
1423 | int main(int argc, char *argv[]) | |
1424 | { | |
1425 | int i, status = 0; | |
1426 | int interactive = 0; | |
1427 | char *oldpath = getenv("PATH"); | |
2b505124 | 1428 | struct libmnt_fs *fs; |
607c2a72 KZ |
1429 | |
1430 | setvbuf(stdout, NULL, _IONBF, BUFSIZ); | |
1431 | setvbuf(stderr, NULL, _IONBF, BUFSIZ); | |
1432 | ||
1433 | setlocale(LC_MESSAGES, ""); | |
1434 | setlocale(LC_CTYPE, ""); | |
1435 | bindtextdomain(PACKAGE, LOCALEDIR); | |
1436 | textdomain(PACKAGE); | |
1437 | ||
e33b39a8 KZ |
1438 | mnt_init_debug(0); /* init libmount debug mask */ |
1439 | mntcache = mnt_new_cache(); /* no fatal error if failed */ | |
1440 | ||
607c2a72 KZ |
1441 | PRS(argc, argv); |
1442 | ||
1443 | if (!notitle) | |
0a09eb4e | 1444 | printf(_("%s from %s\n"), program_invocation_short_name, PACKAGE_STRING); |
607c2a72 | 1445 | |
2b505124 | 1446 | load_fs_info(); |
607c2a72 KZ |
1447 | |
1448 | /* Update our search path to include uncommon directories. */ | |
1449 | if (oldpath) { | |
0a09eb4e | 1450 | fsck_path = xmalloc (strlen (fsck_prefix_path) + 1 + |
607c2a72 | 1451 | strlen (oldpath) + 1); |
607c2a72 KZ |
1452 | strcpy (fsck_path, fsck_prefix_path); |
1453 | strcat (fsck_path, ":"); | |
1454 | strcat (fsck_path, oldpath); | |
1455 | } else { | |
2a24e16e | 1456 | fsck_path = xstrdup(fsck_prefix_path); |
607c2a72 KZ |
1457 | } |
1458 | ||
1459 | if ((num_devices == 1) || (serialize)) | |
1460 | interactive = 1; | |
1461 | ||
dd0bd943 | 1462 | if (lockdisk && (doall || num_devices > 1)) { |
0a09eb4e SK |
1463 | warnx(_("the -l option can be used with one " |
1464 | "device only -- ignore")); | |
dd0bd943 KZ |
1465 | lockdisk = 0; |
1466 | } | |
1467 | ||
607c2a72 KZ |
1468 | /* If -A was specified ("check all"), do that! */ |
1469 | if (doall) | |
1470 | return check_all(); | |
1471 | ||
1472 | if (num_devices == 0) { | |
1473 | serialize++; | |
1474 | interactive++; | |
1475 | return check_all(); | |
1476 | } | |
1477 | for (i = 0 ; i < num_devices; i++) { | |
1478 | if (cancel_requested) { | |
1479 | if (!kill_sent) { | |
1480 | kill_all(SIGTERM); | |
1481 | kill_sent++; | |
1482 | } | |
1483 | break; | |
1484 | } | |
1485 | fs = lookup(devices[i]); | |
2b505124 KZ |
1486 | if (!fs) |
1487 | fs = add_dummy_fs(devices[i]); | |
1488 | else if (fs_ignored_type(fs)) | |
e3174198 KZ |
1489 | continue; |
1490 | ||
67f09eae | 1491 | if (ignore_mounted && is_mounted(fs)) |
607c2a72 | 1492 | continue; |
6c6f2af9 | 1493 | status |= fsck_device(fs, interactive); |
607c2a72 KZ |
1494 | if (serialize || |
1495 | (max_running && (num_running >= max_running))) { | |
1496 | struct fsck_instance *inst; | |
1497 | ||
1498 | inst = wait_one(0); | |
1499 | if (inst) { | |
1500 | status |= inst->exit_status; | |
1501 | free_instance(inst); | |
1502 | } | |
1503 | if (verbose > 1) | |
1504 | printf("----------------------------------\n"); | |
1505 | } | |
1506 | } | |
1507 | status |= wait_many(FLAG_WAIT_ALL); | |
1508 | free(fsck_path); | |
e33b39a8 | 1509 | mnt_free_cache(mntcache); |
2b505124 | 1510 | mnt_free_table(fstab); |
67f09eae | 1511 | mnt_free_table(mtab); |
607c2a72 KZ |
1512 | return status; |
1513 | } | |
fb429f22 | 1514 |