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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 | * | |
934530c7 | 22 | * Copyright (C) 2009-2014 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 | 45 | #include <dirent.h> |
5a0da00a | 46 | #include <sys/resource.h> |
0556def4 | 47 | #include <sys/time.h> |
0c0f93fc | 48 | #include <blkid.h> |
2b505124 | 49 | #include <libmount.h> |
607c2a72 KZ |
50 | |
51 | #include "nls.h" | |
52 | #include "pathnames.h" | |
947558f5 | 53 | #include "exitcodes.h" |
93bd18bc | 54 | #include "c.h" |
45ca68ec | 55 | #include "closestream.h" |
0a09eb4e | 56 | |
947558f5 | 57 | #define XALLOC_EXIT_CODE FSCK_EX_ERROR |
0a09eb4e | 58 | #include "xalloc.h" |
607c2a72 | 59 | |
7ac166bf KZ |
60 | #ifndef DEFAULT_FSTYPE |
61 | # define DEFAULT_FSTYPE "ext2" | |
62 | #endif | |
63 | ||
64 | #define MAX_DEVICES 32 | |
65 | #define MAX_ARGS 32 | |
66 | ||
607c2a72 KZ |
67 | static const char *ignored_types[] = { |
68 | "ignore", | |
69 | "iso9660", | |
607c2a72 | 70 | "sw", |
607c2a72 KZ |
71 | NULL |
72 | }; | |
73 | ||
74 | static const char *really_wanted[] = { | |
75 | "minix", | |
76 | "ext2", | |
77 | "ext3", | |
78 | "ext4", | |
79 | "ext4dev", | |
80 | "jfs", | |
81 | "reiserfs", | |
c7a96884 | 82 | "xiafs" |
607c2a72 KZ |
83 | }; |
84 | ||
7ac166bf KZ |
85 | /* |
86 | * Internal structure for mount tabel entries. | |
87 | */ | |
88 | struct fsck_fs_data | |
89 | { | |
90 | const char *device; | |
91 | dev_t disk; | |
92 | unsigned int stacked:1, | |
93 | done:1, | |
94 | eval_device:1; | |
95 | }; | |
96 | ||
97 | /* | |
98 | * Structure to allow exit codes to be stored | |
99 | */ | |
100 | struct fsck_instance { | |
101 | int pid; | |
102 | int flags; /* FLAG_{DONE|PROGRESS} */ | |
103 | int lock; /* flock()ed whole disk file descriptor or -1 */ | |
104 | int exit_status; | |
0556def4 KZ |
105 | struct timeval start_time; |
106 | struct timeval end_time; | |
7ac166bf KZ |
107 | char * prog; |
108 | char * type; | |
109 | ||
5a0da00a | 110 | struct rusage rusage; |
7ac166bf KZ |
111 | struct libmnt_fs *fs; |
112 | struct fsck_instance *next; | |
113 | }; | |
114 | ||
115 | #define FLAG_DONE 1 | |
116 | #define FLAG_PROGRESS 2 | |
607c2a72 KZ |
117 | |
118 | /* | |
119 | * Global variables for options | |
120 | */ | |
5894bcd4 KZ |
121 | static char *devices[MAX_DEVICES]; |
122 | static char *args[MAX_ARGS]; | |
123 | static int num_devices, num_args; | |
124 | ||
125 | static int lockdisk; | |
126 | static int verbose; | |
127 | static int doall; | |
128 | static int noexecute; | |
129 | static int serialize; | |
130 | static int skip_root; | |
131 | static int ignore_mounted; | |
132 | static int notitle; | |
133 | static int parallel_root; | |
134 | static int progress; | |
135 | static int progress_fd; | |
136 | static int force_all_parallel; | |
5a0da00a | 137 | static int report_stats; |
5894bcd4 KZ |
138 | |
139 | static int num_running; | |
140 | static int max_running; | |
141 | ||
142 | static volatile int cancel_requested; | |
143 | static int kill_sent; | |
144 | static char *fstype; | |
145 | static struct fsck_instance *instance_list; | |
146 | ||
147 | static const char fsck_prefix_path[] = FS_SEARCH_PATH; | |
148 | static char *fsck_path; | |
149 | ||
150 | /* parsed fstab and mtab */ | |
67f09eae | 151 | static struct libmnt_table *fstab, *mtab; |
e33b39a8 | 152 | static struct libmnt_cache *mntcache; |
2b505124 KZ |
153 | |
154 | static int count_slaves(dev_t disk); | |
155 | ||
607c2a72 KZ |
156 | static int string_to_int(const char *s) |
157 | { | |
158 | long l; | |
159 | char *p; | |
160 | ||
161 | l = strtol(s, &p, 0); | |
162 | if (*p || l == LONG_MIN || l == LONG_MAX || l < 0 || l > INT_MAX) | |
163 | return -1; | |
164 | else | |
165 | return (int) l; | |
166 | } | |
167 | ||
c7a96884 KZ |
168 | /* Do we really really want to check this fs? */ |
169 | static int fs_check_required(const char *type) | |
170 | { | |
171 | size_t i; | |
172 | ||
173 | for(i = 0; i < ARRAY_SIZE(really_wanted); i++) { | |
174 | if (strcmp(type, really_wanted[i]) == 0) | |
175 | return 1; | |
176 | } | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
67f09eae KZ |
181 | static int is_mounted(struct libmnt_fs *fs) |
182 | { | |
183 | int rc; | |
7a4f9885 | 184 | const char *src; |
67f09eae | 185 | |
7a4f9885 KZ |
186 | src = mnt_fs_get_source(fs); |
187 | if (!src) | |
188 | return 0; | |
189 | if (!mntcache) | |
190 | mntcache = mnt_new_cache(); | |
67f09eae KZ |
191 | if (!mtab) { |
192 | mtab = mnt_new_table(); | |
193 | if (!mtab) | |
194 | err(FSCK_EX_ERROR, ("failed to initialize libmount table")); | |
67f09eae KZ |
195 | mnt_table_set_cache(mtab, mntcache); |
196 | mnt_table_parse_mtab(mtab, NULL); | |
197 | } | |
198 | ||
7a4f9885 | 199 | rc = mnt_table_find_source(mtab, src, MNT_ITER_BACKWARD) ? 1 : 0; |
67f09eae KZ |
200 | if (verbose) { |
201 | if (rc) | |
7a4f9885 | 202 | printf(_("%s is mounted\n"), src); |
67f09eae | 203 | else |
7a4f9885 | 204 | printf(_("%s is not mounted\n"), src); |
67f09eae KZ |
205 | } |
206 | return rc; | |
207 | } | |
208 | ||
2b505124 | 209 | static int ignore(struct libmnt_fs *); |
607c2a72 | 210 | |
2b505124 | 211 | static struct fsck_fs_data *fs_create_data(struct libmnt_fs *fs) |
607c2a72 | 212 | { |
2b505124 | 213 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); |
607c2a72 | 214 | |
2b505124 KZ |
215 | if (!data) { |
216 | data = xcalloc(1, sizeof(*data)); | |
217 | mnt_fs_set_userdata(fs, data); | |
218 | } | |
219 | return data; | |
607c2a72 KZ |
220 | } |
221 | ||
2b505124 KZ |
222 | /* |
223 | * fs from fstab might contains real device name as well as symlink, | |
224 | * LABEL or UUID, this function returns canonicalized result. | |
225 | */ | |
226 | static const char *fs_get_device(struct libmnt_fs *fs) | |
607c2a72 | 227 | { |
2b505124 | 228 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); |
607c2a72 | 229 | |
2b505124 KZ |
230 | if (!data || !data->eval_device) { |
231 | const char *spec = mnt_fs_get_source(fs); | |
232 | ||
233 | if (!data) | |
234 | data = fs_create_data(fs); | |
235 | ||
236 | data->eval_device = 1; | |
237 | data->device = mnt_resolve_spec(spec, mnt_table_get_cache(fstab)); | |
238 | if (!data->device) | |
2a24e16e | 239 | data->device = xstrdup(spec); |
607c2a72 | 240 | } |
2b505124 KZ |
241 | |
242 | return data->device; | |
607c2a72 KZ |
243 | } |
244 | ||
2b505124 | 245 | static dev_t fs_get_disk(struct libmnt_fs *fs, int check) |
607c2a72 | 246 | { |
2b505124 KZ |
247 | struct fsck_fs_data *data; |
248 | const char *device; | |
249 | struct stat st; | |
250 | ||
251 | data = mnt_fs_get_userdata(fs); | |
252 | if (data && data->disk) | |
253 | return data->disk; | |
607c2a72 | 254 | |
2b505124 | 255 | if (!check) |
607c2a72 KZ |
256 | return 0; |
257 | ||
2b505124 KZ |
258 | if (mnt_fs_is_netfs(fs) || mnt_fs_is_pseudofs(fs)) |
259 | return 0; | |
607c2a72 | 260 | |
2b505124 KZ |
261 | device = fs_get_device(fs); |
262 | if (!device) | |
263 | return 0; | |
607c2a72 | 264 | |
2b505124 | 265 | data = fs_create_data(fs); |
607c2a72 | 266 | |
2b505124 KZ |
267 | if (!stat(device, &st) && |
268 | !blkid_devno_to_wholedisk(st.st_rdev, NULL, 0, &data->disk)) { | |
269 | ||
270 | if (data->disk) | |
271 | data->stacked = count_slaves(data->disk) > 0 ? 1 : 0; | |
272 | return data->disk; | |
607c2a72 | 273 | } |
2b505124 | 274 | return 0; |
607c2a72 KZ |
275 | } |
276 | ||
2b505124 | 277 | static int fs_is_stacked(struct libmnt_fs *fs) |
dd0bd943 | 278 | { |
2b505124 KZ |
279 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); |
280 | return data ? data->stacked : 0; | |
281 | } | |
dd0bd943 | 282 | |
2b505124 KZ |
283 | static int fs_is_done(struct libmnt_fs *fs) |
284 | { | |
285 | struct fsck_fs_data *data = mnt_fs_get_userdata(fs); | |
286 | return data ? data->done : 0; | |
287 | } | |
dd0bd943 | 288 | |
2b505124 KZ |
289 | static void fs_set_done(struct libmnt_fs *fs) |
290 | { | |
291 | struct fsck_fs_data *data = fs_create_data(fs); | |
292 | ||
293 | if (data) | |
294 | data->done = 1; | |
dd0bd943 KZ |
295 | } |
296 | ||
297 | static int is_irrotational_disk(dev_t disk) | |
298 | { | |
299 | char path[PATH_MAX]; | |
300 | FILE *f; | |
301 | int rc, x; | |
302 | ||
2b505124 | 303 | |
dd0bd943 KZ |
304 | rc = snprintf(path, sizeof(path), |
305 | "/sys/dev/block/%d:%d/queue/rotational", | |
306 | major(disk), minor(disk)); | |
307 | ||
0a09eb4e | 308 | if (rc < 0 || (unsigned int) (rc + 1) > sizeof(path)) |
dd0bd943 KZ |
309 | return 0; |
310 | ||
311 | f = fopen(path, "r"); | |
312 | if (!f) | |
313 | return 0; | |
314 | ||
0a09eb4e SK |
315 | rc = fscanf(f, "%d", &x); |
316 | if (rc != 1) { | |
317 | if (ferror(f)) | |
47481cbd | 318 | warn(_("cannot read %s"), path); |
0a09eb4e SK |
319 | else |
320 | warnx(_("parse error: %s"), path); | |
321 | } | |
dd0bd943 KZ |
322 | fclose(f); |
323 | ||
324 | return rc == 1 ? !x : 0; | |
325 | } | |
326 | ||
327 | static void lock_disk(struct fsck_instance *inst) | |
328 | { | |
2b505124 | 329 | dev_t disk = fs_get_disk(inst->fs, 1); |
dd0bd943 KZ |
330 | char *diskname; |
331 | ||
332 | if (!disk || is_irrotational_disk(disk)) | |
333 | return; | |
334 | ||
335 | diskname = blkid_devno_to_devname(disk); | |
336 | if (!diskname) | |
337 | return; | |
338 | ||
339 | if (verbose) | |
340 | printf(_("Locking disk %s ... "), diskname); | |
341 | ||
342 | inst->lock = open(diskname, O_CLOEXEC | O_RDONLY); | |
343 | if (inst->lock >= 0) { | |
344 | int rc = -1; | |
345 | ||
346 | /* inform users that we're waiting on the lock */ | |
347 | if (verbose && | |
348 | (rc = flock(inst->lock, LOCK_EX | LOCK_NB)) != 0 && | |
349 | errno == EWOULDBLOCK) | |
350 | printf(_("(waiting) ")); | |
351 | ||
352 | if (rc != 0 && flock(inst->lock, LOCK_EX) != 0) { | |
353 | close(inst->lock); /* failed */ | |
354 | inst->lock = -1; | |
355 | } | |
356 | } | |
357 | ||
358 | if (verbose) | |
fcc058f4 BS |
359 | /* TRANSLATORS: These are followups to "Locking disk...". */ |
360 | printf("%s.\n", inst->lock >= 0 ? _("succeeded") : _("failed")); | |
dd0bd943 KZ |
361 | |
362 | free(diskname); | |
363 | return; | |
364 | } | |
365 | ||
366 | static void unlock_disk(struct fsck_instance *inst) | |
367 | { | |
368 | if (inst->lock >= 0) { | |
369 | /* explicitly unlock, don't rely on close(), maybe some library | |
370 | * (e.g. liblkid) has still open the device. | |
371 | */ | |
372 | flock(inst->lock, LOCK_UN); | |
373 | close(inst->lock); | |
ac8f2843 KZ |
374 | |
375 | inst->lock = -1; | |
dd0bd943 KZ |
376 | } |
377 | } | |
378 | ||
607c2a72 KZ |
379 | static void free_instance(struct fsck_instance *i) |
380 | { | |
dd0bd943 KZ |
381 | if (lockdisk) |
382 | unlock_disk(i); | |
7009077b | 383 | free(i->prog); |
72c08aa9 | 384 | mnt_unref_fs(i->fs); |
607c2a72 KZ |
385 | free(i); |
386 | return; | |
387 | } | |
388 | ||
2b505124 | 389 | static struct libmnt_fs *add_dummy_fs(const char *device) |
607c2a72 | 390 | { |
2b505124 | 391 | struct libmnt_fs *fs = mnt_new_fs(); |
607c2a72 | 392 | |
2b505124 | 393 | if (fs && mnt_fs_set_source(fs, device) == 0 && |
72c08aa9 KZ |
394 | mnt_table_add_fs(fstab, fs) == 0) { |
395 | mnt_unref_fs(fs); | |
2b505124 | 396 | return fs; |
72c08aa9 | 397 | } |
607c2a72 | 398 | |
72c08aa9 | 399 | mnt_unref_fs(fs); |
2b505124 KZ |
400 | err(FSCK_EX_ERROR, _("failed to setup description for %s"), device); |
401 | } | |
607c2a72 | 402 | |
2b505124 | 403 | static void fs_interpret_type(struct libmnt_fs *fs) |
607c2a72 | 404 | { |
2b505124 KZ |
405 | const char *device; |
406 | const char *type = mnt_fs_get_fstype(fs); | |
607c2a72 | 407 | |
2b505124 KZ |
408 | if (type && strcmp(type, "auto") != 0) |
409 | return; | |
607c2a72 | 410 | |
2b505124 | 411 | mnt_fs_set_fstype(fs, NULL); |
607c2a72 | 412 | |
2b505124 KZ |
413 | device = fs_get_device(fs); |
414 | if (device) { | |
415 | int ambi = 0; | |
607c2a72 | 416 | |
2b505124 KZ |
417 | type = mnt_get_fstype(device, &ambi, mnt_table_get_cache(fstab)); |
418 | if (!ambi) | |
419 | mnt_fs_set_fstype(fs, type); | |
420 | } | |
607c2a72 KZ |
421 | } |
422 | ||
2b505124 KZ |
423 | static int parser_errcb(struct libmnt_table *tb __attribute__ ((__unused__)), |
424 | const char *filename, int line) | |
607c2a72 | 425 | { |
2b505124 KZ |
426 | warnx(_("%s: parse error at line %d -- ignore"), filename, line); |
427 | return 0; | |
607c2a72 KZ |
428 | } |
429 | ||
430 | /* | |
431 | * Load the filesystem database from /etc/fstab | |
432 | */ | |
2b505124 | 433 | static void load_fs_info(void) |
607c2a72 | 434 | { |
2b505124 | 435 | const char *path; |
607c2a72 | 436 | |
2b505124 KZ |
437 | fstab = mnt_new_table(); |
438 | if (!fstab) | |
439 | err(FSCK_EX_ERROR, ("failed to initialize libmount table")); | |
607c2a72 | 440 | |
2b505124 | 441 | mnt_table_set_parser_errcb(fstab, parser_errcb); |
e33b39a8 | 442 | mnt_table_set_cache(fstab, mntcache); |
2b505124 KZ |
443 | |
444 | errno = 0; | |
445 | ||
446 | /* | |
447 | * Let's follow libmount defauls if $FSTAB_FILE is not specified | |
448 | */ | |
449 | path = getenv("FSTAB_FILE"); | |
450 | ||
451 | if (mnt_table_parse_fstab(fstab, path)) { | |
2b505124 KZ |
452 | if (!path) |
453 | path = mnt_get_fstab_path(); | |
0525768a KZ |
454 | |
455 | /* don't print error when there is no fstab at all */ | |
456 | if (access(path, F_OK) == 0) { | |
457 | if (errno) | |
458 | warn(_("%s: failed to parse fstab"), path); | |
459 | else | |
460 | warnx(_("%s: failed to parse fstab"), path); | |
461 | } | |
607c2a72 KZ |
462 | } |
463 | } | |
464 | ||
e33b39a8 KZ |
465 | /* |
466 | * Lookup filesys in /etc/fstab and return the corresponding entry. | |
467 | * The @path has to be real path (no TAG) by mnt_resolve_spec(). | |
468 | */ | |
469 | static struct libmnt_fs *lookup(char *path) | |
607c2a72 | 470 | { |
2b505124 | 471 | struct libmnt_fs *fs; |
607c2a72 | 472 | |
e33b39a8 | 473 | if (!path) |
607c2a72 KZ |
474 | return NULL; |
475 | ||
e33b39a8 | 476 | fs = mnt_table_find_srcpath(fstab, path, MNT_ITER_FORWARD); |
7a4f9885 KZ |
477 | if (!fs) { |
478 | /* | |
479 | * Maybe mountpoint has been specified on fsck command line. | |
480 | * Yeah, crazy feature... | |
481 | * | |
482 | * Note that mnt_table_find_target() may canonicalize paths in | |
483 | * the fstab to support symlinks. This is really unwanted, | |
484 | * because readlink() on mountpoints may trigger automounts. | |
485 | * | |
486 | * So, disable the cache and compare the paths as strings | |
487 | * without care about symlinks... | |
488 | */ | |
489 | mnt_table_set_cache(fstab, NULL); | |
e33b39a8 | 490 | fs = mnt_table_find_target(fstab, path, MNT_ITER_FORWARD); |
7a4f9885 KZ |
491 | mnt_table_set_cache(fstab, mntcache); |
492 | } | |
607c2a72 KZ |
493 | return fs; |
494 | } | |
495 | ||
496 | /* Find fsck program for a given fs type. */ | |
2b505124 | 497 | static char *find_fsck(const char *type) |
607c2a72 | 498 | { |
41e32d9f KZ |
499 | char *s; |
500 | const char *tpl; | |
501 | static char prog[256]; | |
2a24e16e | 502 | char *p = xstrdup(fsck_path); |
41e32d9f KZ |
503 | struct stat st; |
504 | ||
505 | /* Are we looking for a program or just a type? */ | |
506 | tpl = (strncmp(type, "fsck.", 5) ? "%s/fsck.%s" : "%s/%s"); | |
507 | ||
508 | for(s = strtok(p, ":"); s; s = strtok(NULL, ":")) { | |
509 | sprintf(prog, tpl, s, type); | |
7064679f KZ |
510 | if (stat(prog, &st) == 0) |
511 | break; | |
41e32d9f KZ |
512 | } |
513 | free(p); | |
514 | ||
515 | return(s ? prog : NULL); | |
607c2a72 KZ |
516 | } |
517 | ||
7ac166bf | 518 | static int progress_active(void) |
607c2a72 KZ |
519 | { |
520 | struct fsck_instance *inst; | |
521 | ||
522 | for (inst = instance_list; inst; inst = inst->next) { | |
523 | if (inst->flags & FLAG_DONE) | |
524 | continue; | |
525 | if (inst->flags & FLAG_PROGRESS) | |
526 | return 1; | |
527 | } | |
528 | return 0; | |
529 | } | |
530 | ||
5a0da00a FM |
531 | /* |
532 | * Process run statistics for finished fsck instances. | |
533 | * | |
534 | * If report_stats is 0, do nothing, otherwise print a selection of | |
535 | * interesting rusage statistics as well as elapsed wallclock time. | |
536 | */ | |
537 | static void print_stats(struct fsck_instance *inst) | |
538 | { | |
0556def4 | 539 | double time_diff; |
5a0da00a FM |
540 | |
541 | if (!inst || !report_stats || noexecute) | |
542 | return; | |
543 | ||
0556def4 KZ |
544 | time_diff = (inst->end_time.tv_sec - inst->start_time.tv_sec) |
545 | + (inst->end_time.tv_usec - inst->start_time.tv_usec) / 1E6; | |
546 | ||
547 | fprintf(stdout, "%s: status %d, rss %ld, " | |
548 | "real %f, user %d.%06d, sys %d.%06d\n", | |
5a0da00a FM |
549 | fs_get_device(inst->fs), |
550 | inst->exit_status, | |
551 | inst->rusage.ru_maxrss, | |
0556def4 | 552 | time_diff, |
5a0da00a FM |
553 | (int)inst->rusage.ru_utime.tv_sec, |
554 | (int)inst->rusage.ru_utime.tv_usec, | |
555 | (int)inst->rusage.ru_stime.tv_sec, | |
556 | (int)inst->rusage.ru_stime.tv_usec); | |
557 | } | |
558 | ||
607c2a72 KZ |
559 | /* |
560 | * Execute a particular fsck program, and link it into the list of | |
561 | * child processes we are waiting for. | |
562 | */ | |
c7a96884 KZ |
563 | static int execute(const char *progname, const char *progpath, |
564 | const char *type, struct libmnt_fs *fs, int interactive) | |
607c2a72 | 565 | { |
c7a96884 | 566 | char *argv[80]; |
607c2a72 KZ |
567 | int argc, i; |
568 | struct fsck_instance *inst, *p; | |
569 | pid_t pid; | |
570 | ||
ac8f2843 | 571 | inst = xcalloc(1, sizeof(*inst)); |
607c2a72 | 572 | |
c7a96884 | 573 | argv[0] = xstrdup(progname); |
607c2a72 KZ |
574 | argc = 1; |
575 | ||
576 | for (i=0; i <num_args; i++) | |
2a24e16e | 577 | argv[argc++] = xstrdup(args[i]); |
607c2a72 KZ |
578 | |
579 | if (progress) { | |
580 | if ((strcmp(type, "ext2") == 0) || | |
581 | (strcmp(type, "ext3") == 0) || | |
582 | (strcmp(type, "ext4") == 0) || | |
583 | (strcmp(type, "ext4dev") == 0)) { | |
584 | char tmp[80]; | |
585 | ||
586 | tmp[0] = 0; | |
587 | if (!progress_active()) { | |
588 | snprintf(tmp, 80, "-C%d", progress_fd); | |
589 | inst->flags |= FLAG_PROGRESS; | |
590 | } else if (progress_fd) | |
591 | snprintf(tmp, 80, "-C%d", progress_fd * -1); | |
592 | if (tmp[0]) | |
2a24e16e | 593 | argv[argc++] = xstrdup(tmp); |
607c2a72 KZ |
594 | } |
595 | } | |
596 | ||
2a24e16e | 597 | argv[argc++] = xstrdup(fs_get_device(fs)); |
607c2a72 KZ |
598 | argv[argc] = 0; |
599 | ||
607c2a72 | 600 | if (verbose || noexecute) { |
2b505124 KZ |
601 | const char *tgt = mnt_fs_get_target(fs); |
602 | ||
603 | if (!tgt) | |
604 | tgt = fs_get_device(fs); | |
c7a96884 | 605 | printf("[%s (%d) -- %s] ", progpath, num_running, tgt); |
607c2a72 KZ |
606 | for (i=0; i < argc; i++) |
607 | printf("%s ", argv[i]); | |
608 | printf("\n"); | |
609 | } | |
610 | ||
72c08aa9 | 611 | mnt_ref_fs(fs); |
dd0bd943 KZ |
612 | inst->fs = fs; |
613 | inst->lock = -1; | |
614 | ||
615 | if (lockdisk) | |
616 | lock_disk(inst); | |
617 | ||
607c2a72 KZ |
618 | /* Fork and execute the correct program. */ |
619 | if (noexecute) | |
620 | pid = -1; | |
621 | else if ((pid = fork()) < 0) { | |
ac8f2843 | 622 | warn(_("fork failed")); |
72c08aa9 | 623 | free_instance(inst); |
607c2a72 KZ |
624 | return errno; |
625 | } else if (pid == 0) { | |
626 | if (!interactive) | |
627 | close(0); | |
c7a96884 KZ |
628 | execv(progpath, argv); |
629 | err(FSCK_EX_ERROR, _("%s: execute failed"), progpath); | |
607c2a72 KZ |
630 | } |
631 | ||
632 | for (i=0; i < argc; i++) | |
633 | free(argv[i]); | |
634 | ||
635 | inst->pid = pid; | |
c7a96884 | 636 | inst->prog = xstrdup(progname); |
2a24e16e | 637 | inst->type = xstrdup(type); |
0556def4 | 638 | gettimeofday(&inst->start_time, NULL); |
607c2a72 KZ |
639 | inst->next = NULL; |
640 | ||
641 | /* | |
642 | * Find the end of the list, so we add the instance on at the end. | |
643 | */ | |
644 | for (p = instance_list; p && p->next; p = p->next); | |
645 | ||
646 | if (p) | |
647 | p->next = inst; | |
648 | else | |
649 | instance_list = inst; | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | /* | |
655 | * Send a signal to all outstanding fsck child processes | |
656 | */ | |
657 | static int kill_all(int signum) | |
658 | { | |
659 | struct fsck_instance *inst; | |
660 | int n = 0; | |
661 | ||
662 | for (inst = instance_list; inst; inst = inst->next) { | |
663 | if (inst->flags & FLAG_DONE) | |
664 | continue; | |
665 | kill(inst->pid, signum); | |
666 | n++; | |
667 | } | |
668 | return n; | |
669 | } | |
670 | ||
671 | /* | |
672 | * Wait for one child process to exit; when it does, unlink it from | |
673 | * the list of executing child processes, and return it. | |
674 | */ | |
675 | static struct fsck_instance *wait_one(int flags) | |
676 | { | |
677 | int status; | |
678 | int sig; | |
679 | struct fsck_instance *inst, *inst2, *prev; | |
680 | pid_t pid; | |
5a0da00a | 681 | struct rusage rusage; |
607c2a72 KZ |
682 | |
683 | if (!instance_list) | |
684 | return NULL; | |
685 | ||
686 | if (noexecute) { | |
687 | inst = instance_list; | |
688 | prev = 0; | |
689 | #ifdef RANDOM_DEBUG | |
690 | while (inst->next && (random() & 1)) { | |
691 | prev = inst; | |
692 | inst = inst->next; | |
693 | } | |
694 | #endif | |
695 | inst->exit_status = 0; | |
696 | goto ret_inst; | |
697 | } | |
698 | ||
699 | /* | |
700 | * gcc -Wall fails saving throw against stupidity | |
701 | * (inst and prev are thought to be uninitialized variables) | |
702 | */ | |
703 | inst = prev = NULL; | |
704 | ||
705 | do { | |
5a0da00a | 706 | pid = wait4(-1, &status, flags, &rusage); |
607c2a72 KZ |
707 | if (cancel_requested && !kill_sent) { |
708 | kill_all(SIGTERM); | |
709 | kill_sent++; | |
710 | } | |
711 | if ((pid == 0) && (flags & WNOHANG)) | |
712 | return NULL; | |
713 | if (pid < 0) { | |
714 | if ((errno == EINTR) || (errno == EAGAIN)) | |
715 | continue; | |
716 | if (errno == ECHILD) { | |
0a09eb4e | 717 | warnx(_("wait: no more child process?!?")); |
607c2a72 KZ |
718 | return NULL; |
719 | } | |
83217641 | 720 | warn(_("waitpid failed")); |
607c2a72 KZ |
721 | continue; |
722 | } | |
723 | for (prev = 0, inst = instance_list; | |
724 | inst; | |
725 | prev = inst, inst = inst->next) { | |
726 | if (inst->pid == pid) | |
727 | break; | |
728 | } | |
729 | } while (!inst); | |
730 | ||
731 | if (WIFEXITED(status)) | |
732 | status = WEXITSTATUS(status); | |
733 | else if (WIFSIGNALED(status)) { | |
734 | sig = WTERMSIG(status); | |
735 | if (sig == SIGINT) { | |
947558f5 | 736 | status = FSCK_EX_UNCORRECTED; |
607c2a72 | 737 | } else { |
0a09eb4e SK |
738 | warnx(_("Warning... %s for device %s exited " |
739 | "with signal %d."), | |
2b505124 | 740 | inst->prog, fs_get_device(inst->fs), sig); |
947558f5 | 741 | status = FSCK_EX_ERROR; |
607c2a72 KZ |
742 | } |
743 | } else { | |
0a09eb4e | 744 | warnx(_("%s %s: status is %x, should never happen."), |
2b505124 | 745 | inst->prog, fs_get_device(inst->fs), status); |
947558f5 | 746 | status = FSCK_EX_ERROR; |
607c2a72 | 747 | } |
5a0da00a | 748 | |
607c2a72 KZ |
749 | inst->exit_status = status; |
750 | inst->flags |= FLAG_DONE; | |
0556def4 | 751 | gettimeofday(&inst->end_time, NULL); |
5a0da00a FM |
752 | memcpy(&inst->rusage, &rusage, sizeof(struct rusage)); |
753 | ||
607c2a72 KZ |
754 | if (progress && (inst->flags & FLAG_PROGRESS) && |
755 | !progress_active()) { | |
756 | for (inst2 = instance_list; inst2; inst2 = inst2->next) { | |
757 | if (inst2->flags & FLAG_DONE) | |
758 | continue; | |
759 | if (strcmp(inst2->type, "ext2") && | |
760 | strcmp(inst2->type, "ext3") && | |
761 | strcmp(inst2->type, "ext4") && | |
762 | strcmp(inst2->type, "ext4dev")) | |
763 | continue; | |
764 | /* | |
765 | * If we've just started the fsck, wait a tiny | |
766 | * bit before sending the kill, to give it | |
767 | * time to set up the signal handler | |
768 | */ | |
0556def4 | 769 | if (inst2->start_time.tv_sec < time(0) + 2) { |
607c2a72 KZ |
770 | if (fork() == 0) { |
771 | sleep(1); | |
772 | kill(inst2->pid, SIGUSR1); | |
947558f5 | 773 | exit(FSCK_EX_OK); |
607c2a72 KZ |
774 | } |
775 | } else | |
776 | kill(inst2->pid, SIGUSR1); | |
777 | inst2->flags |= FLAG_PROGRESS; | |
778 | break; | |
779 | } | |
780 | } | |
781 | ret_inst: | |
782 | if (prev) | |
783 | prev->next = inst->next; | |
784 | else | |
785 | instance_list = inst->next; | |
5a0da00a FM |
786 | |
787 | print_stats(inst); | |
788 | ||
607c2a72 KZ |
789 | if (verbose > 1) |
790 | printf(_("Finished with %s (exit status %d)\n"), | |
2b505124 | 791 | fs_get_device(inst->fs), inst->exit_status); |
607c2a72 KZ |
792 | num_running--; |
793 | return inst; | |
794 | } | |
795 | ||
796 | #define FLAG_WAIT_ALL 0 | |
797 | #define FLAG_WAIT_ATLEAST_ONE 1 | |
798 | /* | |
799 | * Wait until all executing child processes have exited; return the | |
800 | * logical OR of all of their exit code values. | |
801 | */ | |
802 | static int wait_many(int flags) | |
803 | { | |
804 | struct fsck_instance *inst; | |
805 | int global_status = 0; | |
806 | int wait_flags = 0; | |
807 | ||
808 | while ((inst = wait_one(wait_flags))) { | |
809 | global_status |= inst->exit_status; | |
810 | free_instance(inst); | |
811 | #ifdef RANDOM_DEBUG | |
812 | if (noexecute && (flags & WNOHANG) && !(random() % 3)) | |
813 | break; | |
814 | #endif | |
815 | if (flags & FLAG_WAIT_ATLEAST_ONE) | |
816 | wait_flags = WNOHANG; | |
817 | } | |
818 | return global_status; | |
819 | } | |
820 | ||
821 | /* | |
822 | * Run the fsck program on a particular device | |
823 | * | |
824 | * If the type is specified using -t, and it isn't prefixed with "no" | |
825 | * (as in "noext2") and only one filesystem type is specified, then | |
826 | * use that type regardless of what is specified in /etc/fstab. | |
827 | * | |
828 | * If the type isn't specified by the user, then use either the type | |
829 | * specified in /etc/fstab, or DEFAULT_FSTYPE. | |
830 | */ | |
2b505124 | 831 | static int fsck_device(struct libmnt_fs *fs, int interactive) |
607c2a72 | 832 | { |
c7a96884 | 833 | char progname[80], *progpath; |
607c2a72 KZ |
834 | const char *type; |
835 | int retval; | |
836 | ||
2b505124 KZ |
837 | fs_interpret_type(fs); |
838 | ||
839 | type = mnt_fs_get_fstype(fs); | |
607c2a72 | 840 | |
2b505124 KZ |
841 | if (type && strcmp(type, "auto") != 0) |
842 | ; | |
607c2a72 KZ |
843 | else if (fstype && strncmp(fstype, "no", 2) && |
844 | strncmp(fstype, "opts=", 5) && strncmp(fstype, "loop", 4) && | |
845 | !strchr(fstype, ',')) | |
846 | type = fstype; | |
847 | else | |
848 | type = DEFAULT_FSTYPE; | |
849 | ||
c7a96884 KZ |
850 | sprintf(progname, "fsck.%s", type); |
851 | progpath = find_fsck(progname); | |
852 | if (progpath == NULL) { | |
853 | if (fs_check_required(type)) { | |
854 | retval = ENOENT; | |
855 | goto err; | |
856 | } | |
857 | return 0; | |
858 | } | |
859 | ||
607c2a72 | 860 | num_running++; |
c7a96884 | 861 | retval = execute(progname, progpath, type, fs, interactive); |
607c2a72 | 862 | if (retval) { |
607c2a72 | 863 | num_running--; |
c7a96884 | 864 | goto err; |
607c2a72 | 865 | } |
6c6f2af9 | 866 | return 0; |
c7a96884 KZ |
867 | err: |
868 | warnx(_("error %d (%m) while executing fsck.%s for %s"), | |
869 | retval, type, fs_get_device(fs)); | |
870 | return FSCK_EX_ERROR; | |
607c2a72 KZ |
871 | } |
872 | ||
873 | ||
874 | /* | |
875 | * Deal with the fsck -t argument. | |
876 | */ | |
877 | struct fs_type_compile { | |
878 | char **list; | |
879 | int *type; | |
880 | int negate; | |
881 | } fs_type_compiled; | |
882 | ||
883 | #define FS_TYPE_NORMAL 0 | |
884 | #define FS_TYPE_OPT 1 | |
885 | #define FS_TYPE_NEGOPT 2 | |
886 | ||
607c2a72 KZ |
887 | static void compile_fs_type(char *fs_type, struct fs_type_compile *cmp) |
888 | { | |
5894bcd4 | 889 | char *cp, *list, *s; |
607c2a72 KZ |
890 | int num = 2; |
891 | int negate, first_negate = 1; | |
892 | ||
893 | if (fs_type) { | |
894 | for (cp=fs_type; *cp; cp++) { | |
895 | if (*cp == ',') | |
896 | num++; | |
897 | } | |
898 | } | |
899 | ||
ac8f2843 KZ |
900 | cmp->list = xcalloc(num, sizeof(char *)); |
901 | cmp->type = xcalloc(num, sizeof(int)); | |
607c2a72 KZ |
902 | cmp->negate = 0; |
903 | ||
904 | if (!fs_type) | |
905 | return; | |
906 | ||
2a24e16e | 907 | list = xstrdup(fs_type); |
607c2a72 KZ |
908 | num = 0; |
909 | s = strtok(list, ","); | |
910 | while(s) { | |
911 | negate = 0; | |
912 | if (strncmp(s, "no", 2) == 0) { | |
913 | s += 2; | |
914 | negate = 1; | |
915 | } else if (*s == '!') { | |
916 | s++; | |
917 | negate = 1; | |
918 | } | |
919 | if (strcmp(s, "loop") == 0) | |
920 | /* loop is really short-hand for opts=loop */ | |
921 | goto loop_special_case; | |
922 | else if (strncmp(s, "opts=", 5) == 0) { | |
923 | s += 5; | |
924 | loop_special_case: | |
925 | cmp->type[num] = negate ? FS_TYPE_NEGOPT : FS_TYPE_OPT; | |
926 | } else { | |
927 | if (first_negate) { | |
928 | cmp->negate = negate; | |
929 | first_negate = 0; | |
930 | } | |
931 | if ((negate && !cmp->negate) || | |
932 | (!negate && cmp->negate)) { | |
947558f5 | 933 | errx(FSCK_EX_USAGE, |
e0eadc0d SK |
934 | _("Either all or none of the filesystem types passed to -t must be prefixed\n" |
935 | "with 'no' or '!'.")); | |
607c2a72 KZ |
936 | } |
937 | } | |
ac8f2843 | 938 | |
2a24e16e | 939 | cmp->list[num++] = xstrdup(s); |
607c2a72 KZ |
940 | s = strtok(NULL, ","); |
941 | } | |
942 | free(list); | |
943 | } | |
944 | ||
945 | /* | |
946 | * This function returns true if a particular option appears in a | |
947 | * comma-delimited options list | |
948 | */ | |
2b505124 | 949 | static int opt_in_list(const char *opt, const char *optlist) |
607c2a72 KZ |
950 | { |
951 | char *list, *s; | |
952 | ||
953 | if (!optlist) | |
954 | return 0; | |
2a24e16e | 955 | list = xstrdup(optlist); |
607c2a72 KZ |
956 | |
957 | s = strtok(list, ","); | |
958 | while(s) { | |
959 | if (strcmp(s, opt) == 0) { | |
960 | free(list); | |
961 | return 1; | |
962 | } | |
963 | s = strtok(NULL, ","); | |
964 | } | |
0a09eb4e | 965 | free(list); |
607c2a72 KZ |
966 | return 0; |
967 | } | |
968 | ||
969 | /* See if the filesystem matches the criteria given by the -t option */ | |
2b505124 | 970 | static int fs_match(struct libmnt_fs *fs, struct fs_type_compile *cmp) |
607c2a72 KZ |
971 | { |
972 | int n, ret = 0, checked_type = 0; | |
973 | char *cp; | |
974 | ||
975 | if (cmp->list == 0 || cmp->list[0] == 0) | |
976 | return 1; | |
977 | ||
978 | for (n=0; (cp = cmp->list[n]); n++) { | |
979 | switch (cmp->type[n]) { | |
980 | case FS_TYPE_NORMAL: | |
2b505124 KZ |
981 | { |
982 | const char *type = mnt_fs_get_fstype(fs); | |
983 | ||
607c2a72 | 984 | checked_type++; |
2b505124 | 985 | if (type && strcmp(cp, type) == 0) |
607c2a72 | 986 | ret = 1; |
607c2a72 | 987 | break; |
2b505124 | 988 | } |
607c2a72 | 989 | case FS_TYPE_NEGOPT: |
2b505124 | 990 | if (opt_in_list(cp, mnt_fs_get_options(fs))) |
607c2a72 KZ |
991 | return 0; |
992 | break; | |
993 | case FS_TYPE_OPT: | |
2b505124 | 994 | if (!opt_in_list(cp, mnt_fs_get_options(fs))) |
607c2a72 KZ |
995 | return 0; |
996 | break; | |
997 | } | |
998 | } | |
999 | if (checked_type == 0) | |
1000 | return 1; | |
1001 | return (cmp->negate ? !ret : ret); | |
1002 | } | |
1003 | ||
1bb516c3 LN |
1004 | /* |
1005 | * Check if a device exists | |
1006 | */ | |
1007 | static int device_exists(const char *device) | |
1008 | { | |
1009 | struct stat st; | |
1010 | ||
1011 | if (stat(device, &st) == -1) | |
1012 | return 0; | |
1bb516c3 LN |
1013 | if (!S_ISBLK(st.st_mode)) |
1014 | return 0; | |
1bb516c3 LN |
1015 | return 1; |
1016 | } | |
1017 | ||
2b505124 | 1018 | static int fs_ignored_type(struct libmnt_fs *fs) |
e3174198 | 1019 | { |
2b505124 KZ |
1020 | const char **ip, *type; |
1021 | ||
1022 | if (mnt_fs_is_netfs(fs) || mnt_fs_is_pseudofs(fs) || mnt_fs_is_swaparea(fs)) | |
1023 | return 1; | |
1024 | ||
1025 | type = mnt_fs_get_fstype(fs); | |
e3174198 | 1026 | |
2b505124 KZ |
1027 | for(ip = ignored_types; type && *ip; ip++) { |
1028 | if (strcmp(type, *ip) == 0) | |
e3174198 KZ |
1029 | return 1; |
1030 | } | |
1031 | ||
1032 | return 0; | |
1033 | } | |
1034 | ||
607c2a72 | 1035 | /* Check if we should ignore this filesystem. */ |
2b505124 | 1036 | static int ignore(struct libmnt_fs *fs) |
607c2a72 | 1037 | { |
c7a96884 | 1038 | const char *type; |
607c2a72 KZ |
1039 | |
1040 | /* | |
1041 | * If the pass number is 0, ignore it. | |
1042 | */ | |
2b505124 | 1043 | if (mnt_fs_get_passno(fs) == 0) |
607c2a72 KZ |
1044 | return 1; |
1045 | ||
1046 | /* | |
1047 | * If this is a bind mount, ignore it. | |
1048 | */ | |
2b505124 | 1049 | if (opt_in_list("bind", mnt_fs_get_options(fs))) { |
0a09eb4e SK |
1050 | warnx(_("%s: skipping bad line in /etc/fstab: " |
1051 | "bind mount with nonzero fsck pass number"), | |
2b505124 | 1052 | mnt_fs_get_target(fs)); |
607c2a72 KZ |
1053 | return 1; |
1054 | } | |
1055 | ||
1bb516c3 LN |
1056 | /* |
1057 | * ignore devices that don't exist and have the "nofail" mount option | |
1058 | */ | |
2b505124 KZ |
1059 | if (!device_exists(fs_get_device(fs))) { |
1060 | if (opt_in_list("nofail", mnt_fs_get_options(fs))) { | |
236acf2d KZ |
1061 | if (verbose) |
1062 | printf(_("%s: skipping nonexistent device\n"), | |
2b505124 | 1063 | fs_get_device(fs)); |
236acf2d KZ |
1064 | return 1; |
1065 | } | |
1bb516c3 | 1066 | if (verbose) |
236acf2d KZ |
1067 | printf(_("%s: nonexistent device (\"nofail\" fstab " |
1068 | "option may be used to skip this device)\n"), | |
2b505124 | 1069 | fs_get_device(fs)); |
1bb516c3 LN |
1070 | } |
1071 | ||
2b505124 | 1072 | fs_interpret_type(fs); |
607c2a72 KZ |
1073 | |
1074 | /* | |
1075 | * If a specific fstype is specified, and it doesn't match, | |
1076 | * ignore it. | |
1077 | */ | |
3d4820f4 KZ |
1078 | if (!fs_match(fs, &fs_type_compiled)) |
1079 | return 1; | |
607c2a72 | 1080 | |
2b505124 | 1081 | type = mnt_fs_get_fstype(fs); |
7064679f KZ |
1082 | if (!type) { |
1083 | if (verbose) | |
1084 | printf(_("%s: skipping unknown filesystem type\n"), | |
1085 | fs_get_device(fs)); | |
1086 | return 1; | |
1087 | } | |
2b505124 | 1088 | |
607c2a72 | 1089 | /* Are we ignoring this type? */ |
2b505124 | 1090 | if (fs_ignored_type(fs)) |
e3174198 | 1091 | return 1; |
607c2a72 | 1092 | |
c7a96884 | 1093 | |
607c2a72 KZ |
1094 | |
1095 | /* See if the <fsck.fs> program is available. */ | |
2b505124 | 1096 | if (find_fsck(type) == NULL) { |
c7a96884 | 1097 | if (fs_check_required(type)) |
0a09eb4e | 1098 | warnx(_("cannot check %s: fsck.%s not found"), |
2b505124 | 1099 | fs_get_device(fs), type); |
607c2a72 KZ |
1100 | return 1; |
1101 | } | |
1102 | ||
1103 | /* We can and want to check this file system type. */ | |
1104 | return 0; | |
1105 | } | |
1106 | ||
0c0f93fc KZ |
1107 | static int count_slaves(dev_t disk) |
1108 | { | |
1109 | DIR *dir; | |
1110 | struct dirent *dp; | |
1111 | char dirname[PATH_MAX]; | |
1112 | int count = 0; | |
1113 | ||
1114 | snprintf(dirname, sizeof(dirname), | |
1115 | "/sys/dev/block/%u:%u/slaves/", | |
1116 | major(disk), minor(disk)); | |
1117 | ||
1118 | if (!(dir = opendir(dirname))) | |
1119 | return -1; | |
1120 | ||
1121 | while ((dp = readdir(dir)) != 0) { | |
1122 | #ifdef _DIRENT_HAVE_D_TYPE | |
1123 | if (dp->d_type != DT_UNKNOWN && dp->d_type != DT_LNK) | |
1124 | continue; | |
1125 | #endif | |
1126 | if (dp->d_name[0] == '.' && | |
1127 | ((dp->d_name[1] == 0) || | |
1128 | ((dp->d_name[1] == '.') && (dp->d_name[2] == 0)))) | |
1129 | continue; | |
1130 | ||
1131 | count++; | |
1132 | } | |
ac8f2843 | 1133 | |
0c0f93fc KZ |
1134 | closedir(dir); |
1135 | return count; | |
1136 | } | |
1137 | ||
607c2a72 KZ |
1138 | /* |
1139 | * Returns TRUE if a partition on the same disk is already being | |
1140 | * checked. | |
1141 | */ | |
2b505124 | 1142 | static int disk_already_active(struct libmnt_fs *fs) |
607c2a72 KZ |
1143 | { |
1144 | struct fsck_instance *inst; | |
2b505124 | 1145 | dev_t disk; |
607c2a72 KZ |
1146 | |
1147 | if (force_all_parallel) | |
1148 | return 0; | |
1149 | ||
2b505124 | 1150 | if (instance_list && fs_is_stacked(instance_list->fs)) |
0c0f93fc | 1151 | /* any instance for a stacked device is already running */ |
607c2a72 | 1152 | return 1; |
607c2a72 | 1153 | |
2b505124 | 1154 | disk = fs_get_disk(fs, 1); |
0c0f93fc | 1155 | |
607c2a72 KZ |
1156 | /* |
1157 | * If we don't know the base device, assume that the device is | |
1158 | * already active if there are any fsck instances running. | |
0c0f93fc KZ |
1159 | * |
1160 | * Don't check a stacked device with any other disk too. | |
607c2a72 | 1161 | */ |
2b505124 | 1162 | if (!disk || fs_is_stacked(fs)) |
607c2a72 | 1163 | return (instance_list != 0); |
0c0f93fc | 1164 | |
607c2a72 | 1165 | for (inst = instance_list; inst; inst = inst->next) { |
2b505124 KZ |
1166 | dev_t idisk = fs_get_disk(inst->fs, 0); |
1167 | ||
1168 | if (!idisk || disk == idisk) | |
607c2a72 | 1169 | return 1; |
607c2a72 | 1170 | } |
ac8f2843 | 1171 | |
607c2a72 KZ |
1172 | return 0; |
1173 | } | |
1174 | ||
1175 | /* Check all file systems, using the /etc/fstab table. */ | |
2b505124 | 1176 | static int check_all(void) |
607c2a72 | 1177 | { |
607c2a72 KZ |
1178 | int not_done_yet = 1; |
1179 | int passno = 1; | |
1180 | int pass_done; | |
2b505124 | 1181 | int status = FSCK_EX_OK; |
607c2a72 | 1182 | |
2b505124 KZ |
1183 | struct libmnt_fs *fs; |
1184 | struct libmnt_iter *itr = mnt_new_iter(MNT_ITER_FORWARD); | |
1185 | ||
1186 | if (!itr) | |
1187 | err(FSCK_EX_ERROR, _("failed to allocate iterator")); | |
607c2a72 KZ |
1188 | |
1189 | /* | |
1190 | * Do an initial scan over the filesystem; mark filesystems | |
1191 | * which should be ignored as done, and resolve any "auto" | |
1192 | * filesystem types (done as a side-effect of calling ignore()). | |
1193 | */ | |
2b505124 KZ |
1194 | while (mnt_table_next_fs(fstab, itr, &fs) == 0) { |
1195 | if (ignore(fs)) { | |
1196 | fs_set_done(fs); | |
1197 | continue; | |
1198 | } | |
607c2a72 KZ |
1199 | } |
1200 | ||
2b505124 KZ |
1201 | if (verbose) |
1202 | fputs(_("Checking all file systems.\n"), stdout); | |
1203 | ||
607c2a72 KZ |
1204 | /* |
1205 | * Find and check the root filesystem. | |
1206 | */ | |
1207 | if (!parallel_root) { | |
2b505124 | 1208 | fs = mnt_table_find_target(fstab, "/", MNT_ITER_FORWARD); |
607c2a72 | 1209 | if (fs) { |
2b505124 KZ |
1210 | if (!skip_root && |
1211 | !fs_is_done(fs) && | |
67f09eae | 1212 | !(ignore_mounted && is_mounted(fs))) { |
6c6f2af9 | 1213 | status |= fsck_device(fs, 1); |
607c2a72 | 1214 | status |= wait_many(FLAG_WAIT_ALL); |
2b505124 KZ |
1215 | if (status > FSCK_EX_NONDESTRUCT) { |
1216 | mnt_free_iter(itr); | |
607c2a72 | 1217 | return status; |
2b505124 | 1218 | } |
607c2a72 | 1219 | } |
2b505124 | 1220 | fs_set_done(fs); |
607c2a72 KZ |
1221 | } |
1222 | } | |
2b505124 | 1223 | |
607c2a72 KZ |
1224 | /* |
1225 | * This is for the bone-headed user who enters the root | |
1226 | * filesystem twice. Skip root will skep all root entries. | |
1227 | */ | |
2b505124 KZ |
1228 | if (skip_root) { |
1229 | mnt_reset_iter(itr, MNT_ITER_FORWARD); | |
1230 | ||
1231 | while(mnt_table_next_fs(fstab, itr, &fs) == 0) { | |
1232 | const char *tgt = mnt_fs_get_target(fs); | |
1233 | ||
1234 | if (tgt && strcmp(tgt, "/") == 0) | |
1235 | fs_set_done(fs); | |
1236 | } | |
1237 | } | |
607c2a72 KZ |
1238 | |
1239 | while (not_done_yet) { | |
1240 | not_done_yet = 0; | |
1241 | pass_done = 1; | |
1242 | ||
2b505124 KZ |
1243 | mnt_reset_iter(itr, MNT_ITER_FORWARD); |
1244 | ||
1245 | while(mnt_table_next_fs(fstab, itr, &fs) == 0) { | |
1246 | ||
607c2a72 KZ |
1247 | if (cancel_requested) |
1248 | break; | |
2b505124 | 1249 | if (fs_is_done(fs)) |
607c2a72 KZ |
1250 | continue; |
1251 | /* | |
1252 | * If the filesystem's pass number is higher | |
1253 | * than the current pass number, then we don't | |
1254 | * do it yet. | |
1255 | */ | |
2b505124 | 1256 | if (mnt_fs_get_passno(fs) > passno) { |
607c2a72 KZ |
1257 | not_done_yet++; |
1258 | continue; | |
1259 | } | |
67f09eae | 1260 | if (ignore_mounted && is_mounted(fs)) { |
2b505124 | 1261 | fs_set_done(fs); |
607c2a72 KZ |
1262 | continue; |
1263 | } | |
1264 | /* | |
1265 | * If a filesystem on a particular device has | |
1266 | * already been spawned, then we need to defer | |
1267 | * this to another pass. | |
1268 | */ | |
0c0f93fc | 1269 | if (disk_already_active(fs)) { |
607c2a72 KZ |
1270 | pass_done = 0; |
1271 | continue; | |
1272 | } | |
1273 | /* | |
1274 | * Spawn off the fsck process | |
1275 | */ | |
6c6f2af9 | 1276 | status |= fsck_device(fs, serialize); |
2b505124 | 1277 | fs_set_done(fs); |
607c2a72 KZ |
1278 | |
1279 | /* | |
1280 | * Only do one filesystem at a time, or if we | |
1281 | * have a limit on the number of fsck's extant | |
1282 | * at one time, apply that limit. | |
1283 | */ | |
1284 | if (serialize || | |
1285 | (max_running && (num_running >= max_running))) { | |
1286 | pass_done = 0; | |
1287 | break; | |
1288 | } | |
1289 | } | |
1290 | if (cancel_requested) | |
1291 | break; | |
1292 | if (verbose > 1) | |
1293 | printf(_("--waiting-- (pass %d)\n"), passno); | |
2b505124 | 1294 | |
607c2a72 KZ |
1295 | status |= wait_many(pass_done ? FLAG_WAIT_ALL : |
1296 | FLAG_WAIT_ATLEAST_ONE); | |
1297 | if (pass_done) { | |
1298 | if (verbose > 1) | |
1299 | printf("----------------------------------\n"); | |
1300 | passno++; | |
1301 | } else | |
1302 | not_done_yet++; | |
1303 | } | |
2b505124 | 1304 | |
607c2a72 KZ |
1305 | if (cancel_requested && !kill_sent) { |
1306 | kill_all(SIGTERM); | |
1307 | kill_sent++; | |
1308 | } | |
2b505124 | 1309 | |
607c2a72 | 1310 | status |= wait_many(FLAG_WAIT_ATLEAST_ONE); |
2b505124 | 1311 | mnt_free_iter(itr); |
607c2a72 KZ |
1312 | return status; |
1313 | } | |
1314 | ||
1b8ce047 | 1315 | static void __attribute__((__noreturn__)) usage(FILE *out) |
607c2a72 | 1316 | { |
1b8ce047 KZ |
1317 | fputs(USAGE_HEADER, out); |
1318 | fprintf(out, _(" %s [options] -- [fs-options] [<filesystem> ...]\n"), | |
1319 | program_invocation_short_name); | |
1320 | ||
1321 | fputs(USAGE_OPTIONS, out); | |
1322 | fputs(_(" -A check all filesystems\n"), out); | |
1323 | fputs(_(" -C [<fd>] display progress bar; file descriptor is for GUIs\n"), out); | |
1324 | fputs(_(" -l lock the device to guarantee exclusive access\n"), out); | |
1325 | fputs(_(" -M do not check mounted filesystems\n"), out); | |
1326 | fputs(_(" -N do not execute, just show what would be done\n"), out); | |
1327 | fputs(_(" -P check filesystems in parallel, including root\n"), out); | |
1328 | fputs(_(" -R skip root filesystem; useful only with '-A'\n"), out); | |
1329 | fputs(_(" -r report statistics for each device checked\n"), out); | |
1330 | fputs(_(" -s serialize the checking operations\n"), out); | |
1331 | fputs(_(" -T do not show the title on startup\n"), out); | |
1332 | fputs(_(" -t <type> specify filesystem types to be checked;\n" | |
1333 | " <type> is allowed to be a comma-separated list\n"), out); | |
1334 | fputs(_(" -V explain what is being done\n"), out); | |
1335 | fputs(_(" -? display this help and exit\n"), out); | |
1336 | ||
1337 | fputs(USAGE_SEPARATOR, out); | |
1338 | fputs(_("See the specific fsck.* commands for available fs-options."), out); | |
1339 | fprintf(out, USAGE_MAN_TAIL("fsck(8)")); | |
1340 | ||
1341 | exit(out == stderr ? FSCK_EX_USAGE : FSCK_EX_OK); | |
607c2a72 KZ |
1342 | } |
1343 | ||
7ac166bf | 1344 | static void signal_cancel(int sig __attribute__((__unused__))) |
607c2a72 KZ |
1345 | { |
1346 | cancel_requested++; | |
1347 | } | |
1348 | ||
9895daca | 1349 | static void parse_argv(int argc, char *argv[]) |
607c2a72 KZ |
1350 | { |
1351 | int i, j; | |
1352 | char *arg, *dev, *tmp = 0; | |
1353 | char options[128]; | |
1354 | int opt = 0; | |
1355 | int opts_for_fsck = 0; | |
1356 | struct sigaction sa; | |
1357 | ||
1358 | /* | |
1359 | * Set up signal action | |
1360 | */ | |
1361 | memset(&sa, 0, sizeof(struct sigaction)); | |
1362 | sa.sa_handler = signal_cancel; | |
1363 | sigaction(SIGINT, &sa, 0); | |
1364 | sigaction(SIGTERM, &sa, 0); | |
1365 | ||
1366 | num_devices = 0; | |
1367 | num_args = 0; | |
1368 | instance_list = 0; | |
1369 | ||
607c2a72 KZ |
1370 | for (i=1; i < argc; i++) { |
1371 | arg = argv[i]; | |
1372 | if (!arg) | |
1373 | continue; | |
1374 | if ((arg[0] == '/' && !opts_for_fsck) || strchr(arg, '=')) { | |
0a09eb4e | 1375 | if (num_devices >= MAX_DEVICES) |
947558f5 | 1376 | errx(FSCK_EX_ERROR, _("too many devices")); |
e33b39a8 KZ |
1377 | |
1378 | dev = mnt_resolve_spec(arg, mntcache); | |
1379 | ||
607c2a72 KZ |
1380 | if (!dev && strchr(arg, '=')) { |
1381 | /* | |
1382 | * Check to see if we failed because | |
1383 | * /proc/partitions isn't found. | |
1384 | */ | |
fb429f22 | 1385 | if (access(_PATH_PROC_PARTITIONS, R_OK) < 0) { |
289dcc90 | 1386 | warn(_("cannot open %s"), |
0a09eb4e | 1387 | _PATH_PROC_PARTITIONS); |
947558f5 | 1388 | errx(FSCK_EX_ERROR, _("Is /proc mounted?")); |
607c2a72 KZ |
1389 | } |
1390 | /* | |
1391 | * Check to see if this is because | |
1392 | * we're not running as root | |
1393 | */ | |
1394 | if (geteuid()) | |
947558f5 | 1395 | errx(FSCK_EX_ERROR, |
0a09eb4e SK |
1396 | _("must be root to scan for matching filesystems: %s"), |
1397 | arg); | |
607c2a72 | 1398 | else |
947558f5 | 1399 | errx(FSCK_EX_ERROR, |
0a09eb4e SK |
1400 | _("couldn't find matching filesystem: %s"), |
1401 | arg); | |
607c2a72 | 1402 | } |
2a24e16e | 1403 | devices[num_devices++] = dev ? dev : xstrdup(arg); |
607c2a72 KZ |
1404 | continue; |
1405 | } | |
1406 | if (arg[0] != '-' || opts_for_fsck) { | |
0a09eb4e | 1407 | if (num_args >= MAX_ARGS) |
947558f5 | 1408 | errx(FSCK_EX_ERROR, _("too many arguments")); |
2a24e16e | 1409 | args[num_args++] = xstrdup(arg); |
607c2a72 KZ |
1410 | continue; |
1411 | } | |
1412 | for (j=1; arg[j]; j++) { | |
1413 | if (opts_for_fsck) { | |
1414 | options[++opt] = arg[j]; | |
1415 | continue; | |
1416 | } | |
1417 | switch (arg[j]) { | |
1418 | case 'A': | |
0a09eb4e | 1419 | doall = 1; |
607c2a72 KZ |
1420 | break; |
1421 | case 'C': | |
0a09eb4e | 1422 | progress = 1; |
607c2a72 KZ |
1423 | if (arg[j+1]) { |
1424 | progress_fd = string_to_int(arg+j+1); | |
1425 | if (progress_fd < 0) | |
1426 | progress_fd = 0; | |
1427 | else | |
1428 | goto next_arg; | |
1429 | } else if ((i+1) < argc && | |
1430 | !strncmp(argv[i+1], "-", 1) == 0) { | |
1431 | progress_fd = string_to_int(argv[i]); | |
1432 | if (progress_fd < 0) | |
1433 | progress_fd = 0; | |
1434 | else { | |
f1c2eaac | 1435 | ++i; |
607c2a72 | 1436 | goto next_arg; |
607c2a72 KZ |
1437 | } |
1438 | } | |
1439 | break; | |
dd0bd943 | 1440 | case 'l': |
0a09eb4e | 1441 | lockdisk = 1; |
dd0bd943 | 1442 | break; |
607c2a72 KZ |
1443 | case 'V': |
1444 | verbose++; | |
1445 | break; | |
1446 | case 'N': | |
0a09eb4e | 1447 | noexecute = 1; |
607c2a72 KZ |
1448 | break; |
1449 | case 'R': | |
0a09eb4e | 1450 | skip_root = 1; |
607c2a72 KZ |
1451 | break; |
1452 | case 'T': | |
0a09eb4e | 1453 | notitle = 1; |
607c2a72 KZ |
1454 | break; |
1455 | case 'M': | |
0a09eb4e | 1456 | ignore_mounted = 1; |
607c2a72 KZ |
1457 | break; |
1458 | case 'P': | |
0a09eb4e | 1459 | parallel_root = 1; |
607c2a72 | 1460 | break; |
5a0da00a FM |
1461 | case 'r': |
1462 | report_stats = 1; | |
1463 | break; | |
607c2a72 | 1464 | case 's': |
0a09eb4e | 1465 | serialize = 1; |
607c2a72 KZ |
1466 | break; |
1467 | case 't': | |
1468 | tmp = 0; | |
1469 | if (fstype) | |
1b8ce047 | 1470 | usage(stderr); |
607c2a72 KZ |
1471 | if (arg[j+1]) |
1472 | tmp = arg+j+1; | |
1473 | else if ((i+1) < argc) | |
1474 | tmp = argv[++i]; | |
1475 | else | |
1b8ce047 | 1476 | usage(stderr); |
2a24e16e | 1477 | fstype = xstrdup(tmp); |
607c2a72 KZ |
1478 | compile_fs_type(fstype, &fs_type_compiled); |
1479 | goto next_arg; | |
1480 | case '-': | |
1481 | opts_for_fsck++; | |
1482 | break; | |
1483 | case '?': | |
1b8ce047 | 1484 | usage(stdout); |
607c2a72 KZ |
1485 | break; |
1486 | default: | |
1487 | options[++opt] = arg[j]; | |
1488 | break; | |
1489 | } | |
1490 | } | |
1491 | next_arg: | |
1492 | if (opt) { | |
1493 | options[0] = '-'; | |
1494 | options[++opt] = '\0'; | |
0a09eb4e | 1495 | if (num_args >= MAX_ARGS) |
947558f5 | 1496 | errx(FSCK_EX_ERROR, _("too many arguments")); |
2a24e16e | 1497 | args[num_args++] = xstrdup(options); |
607c2a72 KZ |
1498 | opt = 0; |
1499 | } | |
1500 | } | |
1501 | if (getenv("FSCK_FORCE_ALL_PARALLEL")) | |
1502 | force_all_parallel++; | |
1503 | if ((tmp = getenv("FSCK_MAX_INST"))) | |
1504 | max_running = atoi(tmp); | |
1505 | } | |
1506 | ||
1507 | int main(int argc, char *argv[]) | |
1508 | { | |
1509 | int i, status = 0; | |
1510 | int interactive = 0; | |
1511 | char *oldpath = getenv("PATH"); | |
2b505124 | 1512 | struct libmnt_fs *fs; |
607c2a72 KZ |
1513 | |
1514 | setvbuf(stdout, NULL, _IONBF, BUFSIZ); | |
1515 | setvbuf(stderr, NULL, _IONBF, BUFSIZ); | |
1516 | ||
1517 | setlocale(LC_MESSAGES, ""); | |
1518 | setlocale(LC_CTYPE, ""); | |
1519 | bindtextdomain(PACKAGE, LOCALEDIR); | |
1520 | textdomain(PACKAGE); | |
45ca68ec | 1521 | atexit(close_stdout); |
607c2a72 | 1522 | |
e33b39a8 KZ |
1523 | mnt_init_debug(0); /* init libmount debug mask */ |
1524 | mntcache = mnt_new_cache(); /* no fatal error if failed */ | |
1525 | ||
9895daca | 1526 | parse_argv(argc, argv); |
607c2a72 KZ |
1527 | |
1528 | if (!notitle) | |
e421313d | 1529 | printf(UTIL_LINUX_VERSION); |
607c2a72 | 1530 | |
2b505124 | 1531 | load_fs_info(); |
607c2a72 KZ |
1532 | |
1533 | /* Update our search path to include uncommon directories. */ | |
1534 | if (oldpath) { | |
0a09eb4e | 1535 | fsck_path = xmalloc (strlen (fsck_prefix_path) + 1 + |
607c2a72 | 1536 | strlen (oldpath) + 1); |
607c2a72 KZ |
1537 | strcpy (fsck_path, fsck_prefix_path); |
1538 | strcat (fsck_path, ":"); | |
1539 | strcat (fsck_path, oldpath); | |
1540 | } else { | |
2a24e16e | 1541 | fsck_path = xstrdup(fsck_prefix_path); |
607c2a72 KZ |
1542 | } |
1543 | ||
1544 | if ((num_devices == 1) || (serialize)) | |
1545 | interactive = 1; | |
1546 | ||
dd0bd943 | 1547 | if (lockdisk && (doall || num_devices > 1)) { |
0a09eb4e SK |
1548 | warnx(_("the -l option can be used with one " |
1549 | "device only -- ignore")); | |
dd0bd943 KZ |
1550 | lockdisk = 0; |
1551 | } | |
1552 | ||
607c2a72 KZ |
1553 | /* If -A was specified ("check all"), do that! */ |
1554 | if (doall) | |
1555 | return check_all(); | |
1556 | ||
1557 | if (num_devices == 0) { | |
1558 | serialize++; | |
1559 | interactive++; | |
1560 | return check_all(); | |
1561 | } | |
1562 | for (i = 0 ; i < num_devices; i++) { | |
1563 | if (cancel_requested) { | |
1564 | if (!kill_sent) { | |
1565 | kill_all(SIGTERM); | |
1566 | kill_sent++; | |
1567 | } | |
1568 | break; | |
1569 | } | |
1570 | fs = lookup(devices[i]); | |
2b505124 KZ |
1571 | if (!fs) |
1572 | fs = add_dummy_fs(devices[i]); | |
1573 | else if (fs_ignored_type(fs)) | |
e3174198 | 1574 | continue; |
67f09eae | 1575 | if (ignore_mounted && is_mounted(fs)) |
607c2a72 | 1576 | continue; |
6c6f2af9 | 1577 | status |= fsck_device(fs, interactive); |
607c2a72 KZ |
1578 | if (serialize || |
1579 | (max_running && (num_running >= max_running))) { | |
1580 | struct fsck_instance *inst; | |
1581 | ||
1582 | inst = wait_one(0); | |
1583 | if (inst) { | |
1584 | status |= inst->exit_status; | |
1585 | free_instance(inst); | |
1586 | } | |
1587 | if (verbose > 1) | |
1588 | printf("----------------------------------\n"); | |
1589 | } | |
1590 | } | |
1591 | status |= wait_many(FLAG_WAIT_ALL); | |
1592 | free(fsck_path); | |
6195f9e6 | 1593 | mnt_unref_cache(mntcache); |
50fccba1 KZ |
1594 | mnt_unref_table(fstab); |
1595 | mnt_unref_table(mtab); | |
607c2a72 KZ |
1596 | return status; |
1597 | } |