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5008d581 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
3b63d2d3 | 6 | Copyright 2010 Lennart Poettering, Kay Sievers |
5008d581 LP |
7 | |
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
5008d581 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
5008d581 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
5008d581 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <unistd.h> | |
23 | #include <fcntl.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <sys/stat.h> | |
27 | #include <limits.h> | |
28 | #include <dirent.h> | |
29 | #include <grp.h> | |
30 | #include <pwd.h> | |
3b63d2d3 LP |
31 | #include <stdio.h> |
32 | #include <stdlib.h> | |
33 | #include <stddef.h> | |
34 | #include <getopt.h> | |
35 | #include <stdbool.h> | |
36 | #include <time.h> | |
37 | #include <sys/types.h> | |
38 | #include <sys/param.h> | |
b8bb3e8f LP |
39 | #include <glob.h> |
40 | #include <fnmatch.h> | |
cb7ed9df | 41 | #include <sys/capability.h> |
5008d581 LP |
42 | |
43 | #include "log.h" | |
44 | #include "util.h" | |
54693d9b | 45 | #include "macro.h" |
49e942b2 | 46 | #include "mkdir.h" |
9eb977db | 47 | #include "path-util.h" |
5008d581 LP |
48 | #include "strv.h" |
49 | #include "label.h" | |
3b63d2d3 | 50 | #include "set.h" |
2c21044f | 51 | #include "conf-files.h" |
cb7ed9df | 52 | #include "capability.h" |
5008d581 | 53 | |
01000479 | 54 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 55 | * them in the file system. This is intended to be used to create |
db019b8d KS |
56 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
57 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 58 | |
66ccd038 | 59 | typedef enum ItemType { |
b8bb3e8f | 60 | /* These ones take file names */ |
3b63d2d3 LP |
61 | CREATE_FILE = 'f', |
62 | TRUNCATE_FILE = 'F', | |
31ed59c5 | 63 | WRITE_FILE = 'w', |
3b63d2d3 LP |
64 | CREATE_DIRECTORY = 'd', |
65 | TRUNCATE_DIRECTORY = 'D', | |
ee17ee7c | 66 | CREATE_FIFO = 'p', |
468d726b LP |
67 | CREATE_SYMLINK = 'L', |
68 | CREATE_CHAR_DEVICE = 'c', | |
69 | CREATE_BLOCK_DEVICE = 'b', | |
b8bb3e8f LP |
70 | |
71 | /* These ones take globs */ | |
3b63d2d3 LP |
72 | IGNORE_PATH = 'x', |
73 | REMOVE_PATH = 'r', | |
a8d88783 | 74 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 75 | RELABEL_PATH = 'z', |
a8d88783 | 76 | RECURSIVE_RELABEL_PATH = 'Z' |
66ccd038 | 77 | } ItemType; |
3b63d2d3 LP |
78 | |
79 | typedef struct Item { | |
66ccd038 | 80 | ItemType type; |
3b63d2d3 LP |
81 | |
82 | char *path; | |
468d726b | 83 | char *argument; |
5008d581 LP |
84 | uid_t uid; |
85 | gid_t gid; | |
3b63d2d3 LP |
86 | mode_t mode; |
87 | usec_t age; | |
88 | ||
468d726b LP |
89 | dev_t major_minor; |
90 | ||
3b63d2d3 LP |
91 | bool uid_set:1; |
92 | bool gid_set:1; | |
93 | bool mode_set:1; | |
94 | bool age_set:1; | |
24f3a374 LP |
95 | |
96 | bool keep_first_level:1; | |
3b63d2d3 LP |
97 | } Item; |
98 | ||
b8bb3e8f | 99 | static Hashmap *items = NULL, *globs = NULL; |
17b90525 | 100 | static Set *unix_sockets = NULL; |
3b63d2d3 LP |
101 | |
102 | static bool arg_create = false; | |
103 | static bool arg_clean = false; | |
104 | static bool arg_remove = false; | |
105 | ||
fba6e687 LP |
106 | static const char *arg_prefix = NULL; |
107 | ||
24f3a374 | 108 | static const char * const conf_file_dirs[] = { |
9125670f DR |
109 | "/etc/tmpfiles.d", |
110 | "/run/tmpfiles.d", | |
111 | "/usr/local/lib/tmpfiles.d", | |
112 | "/usr/lib/tmpfiles.d", | |
3f2afb29 LP |
113 | #ifdef HAVE_SPLIT_USR |
114 | "/lib/tmpfiles.d", | |
115 | #endif | |
9125670f DR |
116 | NULL |
117 | }; | |
118 | ||
3b63d2d3 LP |
119 | #define MAX_DEPTH 256 |
120 | ||
66ccd038 | 121 | static bool needs_glob(ItemType t) { |
777b87e7 | 122 | return t == IGNORE_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_PATH; |
b8bb3e8f LP |
123 | } |
124 | ||
125 | static struct Item* find_glob(Hashmap *h, const char *match) { | |
126 | Item *j; | |
127 | Iterator i; | |
128 | ||
129 | HASHMAP_FOREACH(j, h, i) | |
130 | if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
131 | return j; | |
132 | ||
133 | return NULL; | |
134 | } | |
135 | ||
17b90525 LP |
136 | static void load_unix_sockets(void) { |
137 | FILE *f = NULL; | |
138 | char line[LINE_MAX]; | |
139 | ||
140 | if (unix_sockets) | |
141 | return; | |
142 | ||
143 | /* We maintain a cache of the sockets we found in | |
144 | * /proc/net/unix to speed things up a little. */ | |
145 | ||
fdcad0c2 LP |
146 | unix_sockets = set_new(string_hash_func, string_compare_func); |
147 | if (!unix_sockets) | |
17b90525 LP |
148 | return; |
149 | ||
fdcad0c2 LP |
150 | f = fopen("/proc/net/unix", "re"); |
151 | if (!f) | |
17b90525 LP |
152 | return; |
153 | ||
fdcad0c2 LP |
154 | /* Skip header */ |
155 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
156 | goto fail; |
157 | ||
158 | for (;;) { | |
159 | char *p, *s; | |
160 | int k; | |
161 | ||
fdcad0c2 | 162 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
163 | break; |
164 | ||
165 | truncate_nl(line); | |
166 | ||
fdcad0c2 LP |
167 | p = strchr(line, ':'); |
168 | if (!p) | |
169 | continue; | |
170 | ||
171 | if (strlen(p) < 37) | |
17b90525 LP |
172 | continue; |
173 | ||
fdcad0c2 | 174 | p += 37; |
17b90525 | 175 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 176 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
177 | p += strspn(p, WHITESPACE); |
178 | ||
179 | if (*p != '/') | |
180 | continue; | |
181 | ||
fdcad0c2 LP |
182 | s = strdup(p); |
183 | if (!s) | |
17b90525 LP |
184 | goto fail; |
185 | ||
4ff21d85 LP |
186 | path_kill_slashes(s); |
187 | ||
fdcad0c2 LP |
188 | k = set_put(unix_sockets, s); |
189 | if (k < 0) { | |
17b90525 LP |
190 | free(s); |
191 | ||
192 | if (k != -EEXIST) | |
193 | goto fail; | |
194 | } | |
195 | } | |
196 | ||
10d975f5 | 197 | fclose(f); |
17b90525 LP |
198 | return; |
199 | ||
200 | fail: | |
201 | set_free_free(unix_sockets); | |
202 | unix_sockets = NULL; | |
203 | ||
204 | if (f) | |
205 | fclose(f); | |
206 | } | |
207 | ||
208 | static bool unix_socket_alive(const char *fn) { | |
209 | assert(fn); | |
210 | ||
211 | load_unix_sockets(); | |
212 | ||
213 | if (unix_sockets) | |
214 | return !!set_get(unix_sockets, (char*) fn); | |
215 | ||
216 | /* We don't know, so assume yes */ | |
217 | return true; | |
218 | } | |
219 | ||
3b63d2d3 LP |
220 | static int dir_cleanup( |
221 | const char *p, | |
222 | DIR *d, | |
223 | const struct stat *ds, | |
224 | usec_t cutoff, | |
225 | dev_t rootdev, | |
226 | bool mountpoint, | |
24f3a374 LP |
227 | int maxdepth, |
228 | bool keep_this_level) | |
3b63d2d3 LP |
229 | { |
230 | struct dirent *dent; | |
231 | struct timespec times[2]; | |
232 | bool deleted = false; | |
233 | char *sub_path = NULL; | |
234 | int r = 0; | |
235 | ||
236 | while ((dent = readdir(d))) { | |
237 | struct stat s; | |
238 | usec_t age; | |
239 | ||
240 | if (streq(dent->d_name, ".") || | |
241 | streq(dent->d_name, "..")) | |
242 | continue; | |
5008d581 | 243 | |
3b63d2d3 | 244 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
5008d581 | 245 | |
3b63d2d3 LP |
246 | if (errno != ENOENT) { |
247 | log_error("stat(%s/%s) failed: %m", p, dent->d_name); | |
248 | r = -errno; | |
249 | } | |
250 | ||
251 | continue; | |
252 | } | |
253 | ||
254 | /* Stay on the same filesystem */ | |
255 | if (s.st_dev != rootdev) | |
256 | continue; | |
257 | ||
258 | /* Do not delete read-only files owned by root */ | |
259 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) | |
260 | continue; | |
261 | ||
262 | free(sub_path); | |
263 | sub_path = NULL; | |
264 | ||
265 | if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) { | |
0d0f0c50 | 266 | r = log_oom(); |
3b63d2d3 LP |
267 | goto finish; |
268 | } | |
269 | ||
270 | /* Is there an item configured for this path? */ | |
271 | if (hashmap_get(items, sub_path)) | |
272 | continue; | |
273 | ||
b8bb3e8f LP |
274 | if (find_glob(globs, sub_path)) |
275 | continue; | |
276 | ||
3b63d2d3 LP |
277 | if (S_ISDIR(s.st_mode)) { |
278 | ||
279 | if (mountpoint && | |
280 | streq(dent->d_name, "lost+found") && | |
281 | s.st_uid == 0) | |
282 | continue; | |
283 | ||
284 | if (maxdepth <= 0) | |
285 | log_warning("Reached max depth on %s.", sub_path); | |
286 | else { | |
287 | DIR *sub_dir; | |
288 | int q; | |
289 | ||
e5f3d1ba | 290 | sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME); |
3b63d2d3 LP |
291 | if (sub_dir == NULL) { |
292 | if (errno != ENOENT) { | |
293 | log_error("opendir(%s/%s) failed: %m", p, dent->d_name); | |
294 | r = -errno; | |
295 | } | |
296 | ||
297 | continue; | |
298 | } | |
299 | ||
24f3a374 | 300 | q = dir_cleanup(sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
301 | closedir(sub_dir); |
302 | ||
303 | if (q < 0) | |
304 | r = q; | |
305 | } | |
306 | ||
24f3a374 LP |
307 | /* Note: if you are wondering why we don't |
308 | * support the sticky bit for excluding | |
309 | * directories from cleaning like we do it for | |
310 | * other file system objects: well, the sticky | |
311 | * bit already has a meaning for directories, | |
312 | * so we don't want to overload that. */ | |
313 | ||
314 | if (keep_this_level) | |
315 | continue; | |
316 | ||
3b63d2d3 LP |
317 | /* Ignore ctime, we change it when deleting */ |
318 | age = MAX(timespec_load(&s.st_mtim), | |
319 | timespec_load(&s.st_atim)); | |
320 | if (age >= cutoff) | |
321 | continue; | |
322 | ||
323 | log_debug("rmdir '%s'\n", sub_path); | |
324 | ||
325 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) { | |
326 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
327 | log_error("rmdir(%s): %m", sub_path); | |
328 | r = -errno; | |
329 | } | |
330 | } | |
331 | ||
332 | } else { | |
9c73736d LP |
333 | /* Skip files for which the sticky bit is |
334 | * set. These are semantics we define, and are | |
335 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
336 | * specification for details. */ | |
337 | if (s.st_mode & S_ISVTX) | |
338 | continue; | |
339 | ||
17b90525 | 340 | if (mountpoint && S_ISREG(s.st_mode)) { |
3b63d2d3 LP |
341 | if (streq(dent->d_name, ".journal") && |
342 | s.st_uid == 0) | |
343 | continue; | |
344 | ||
345 | if (streq(dent->d_name, "aquota.user") || | |
346 | streq(dent->d_name, "aquota.group")) | |
347 | continue; | |
348 | } | |
349 | ||
17b90525 LP |
350 | /* Ignore sockets that are listed in /proc/net/unix */ |
351 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) | |
352 | continue; | |
353 | ||
78ab08eb LP |
354 | /* Ignore device nodes */ |
355 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) | |
356 | continue; | |
357 | ||
24f3a374 LP |
358 | /* Keep files on this level around if this is |
359 | * requested */ | |
360 | if (keep_this_level) | |
361 | continue; | |
362 | ||
3b63d2d3 LP |
363 | age = MAX3(timespec_load(&s.st_mtim), |
364 | timespec_load(&s.st_atim), | |
365 | timespec_load(&s.st_ctim)); | |
366 | ||
367 | if (age >= cutoff) | |
368 | continue; | |
369 | ||
370 | log_debug("unlink '%s'\n", sub_path); | |
371 | ||
372 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) { | |
373 | if (errno != ENOENT) { | |
374 | log_error("unlink(%s): %m", sub_path); | |
375 | r = -errno; | |
376 | } | |
377 | } | |
378 | ||
379 | deleted = true; | |
380 | } | |
381 | } | |
382 | ||
383 | finish: | |
384 | if (deleted) { | |
385 | /* Restore original directory timestamps */ | |
386 | times[0] = ds->st_atim; | |
387 | times[1] = ds->st_mtim; | |
388 | ||
389 | if (futimens(dirfd(d), times) < 0) | |
390 | log_error("utimensat(%s): %m", p); | |
391 | } | |
392 | ||
393 | free(sub_path); | |
394 | ||
395 | return r; | |
396 | } | |
397 | ||
398 | static int clean_item(Item *i) { | |
399 | DIR *d; | |
400 | struct stat s, ps; | |
401 | bool mountpoint; | |
402 | int r; | |
403 | usec_t cutoff, n; | |
404 | ||
405 | assert(i); | |
406 | ||
407 | if (i->type != CREATE_DIRECTORY && | |
408 | i->type != TRUNCATE_DIRECTORY && | |
409 | i->type != IGNORE_PATH) | |
410 | return 0; | |
411 | ||
a2558205 | 412 | if (!i->age_set) |
3b63d2d3 LP |
413 | return 0; |
414 | ||
415 | n = now(CLOCK_REALTIME); | |
416 | if (n < i->age) | |
417 | return 0; | |
418 | ||
419 | cutoff = n - i->age; | |
420 | ||
421 | d = opendir(i->path); | |
422 | if (!d) { | |
423 | if (errno == ENOENT) | |
424 | return 0; | |
425 | ||
426 | log_error("Failed to open directory %s: %m", i->path); | |
427 | return -errno; | |
428 | } | |
429 | ||
430 | if (fstat(dirfd(d), &s) < 0) { | |
431 | log_error("stat(%s) failed: %m", i->path); | |
432 | r = -errno; | |
5008d581 LP |
433 | goto finish; |
434 | } | |
435 | ||
3b63d2d3 LP |
436 | if (!S_ISDIR(s.st_mode)) { |
437 | log_error("%s is not a directory.", i->path); | |
438 | r = -ENOTDIR; | |
5008d581 LP |
439 | goto finish; |
440 | } | |
441 | ||
3b63d2d3 LP |
442 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) { |
443 | log_error("stat(%s/..) failed: %m", i->path); | |
444 | r = -errno; | |
5008d581 | 445 | goto finish; |
4aa8b15b | 446 | } |
5008d581 | 447 | |
3b63d2d3 LP |
448 | mountpoint = s.st_dev != ps.st_dev || |
449 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
5008d581 | 450 | |
24f3a374 | 451 | r = dir_cleanup(i->path, d, &s, cutoff, s.st_dev, mountpoint, MAX_DEPTH, i->keep_first_level); |
5008d581 | 452 | |
3b63d2d3 LP |
453 | finish: |
454 | if (d) | |
455 | closedir(d); | |
5008d581 | 456 | |
3b63d2d3 LP |
457 | return r; |
458 | } | |
5008d581 | 459 | |
062e01bb MS |
460 | static int item_set_perms(Item *i, const char *path) { |
461 | /* not using i->path directly because it may be a glob */ | |
462 | if (i->mode_set) | |
463 | if (chmod(path, i->mode) < 0) { | |
464 | log_error("chmod(%s) failed: %m", path); | |
465 | return -errno; | |
466 | } | |
467 | ||
468 | if (i->uid_set || i->gid_set) | |
469 | if (chown(path, | |
470 | i->uid_set ? i->uid : (uid_t) -1, | |
471 | i->gid_set ? i->gid : (gid_t) -1) < 0) { | |
472 | ||
473 | log_error("chown(%s) failed: %m", path); | |
474 | return -errno; | |
475 | } | |
476 | ||
c9bc0764 | 477 | return label_fix(path, false, false); |
062e01bb MS |
478 | } |
479 | ||
d4e9eb91 DR |
480 | static int write_one_file(Item *i, const char *path) { |
481 | int r, e, fd, flags; | |
482 | struct stat st; | |
483 | mode_t u; | |
484 | ||
485 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND : | |
486 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0; | |
487 | ||
488 | u = umask(0); | |
489 | label_context_set(path, S_IFREG); | |
490 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode); | |
491 | e = errno; | |
492 | label_context_clear(); | |
493 | umask(u); | |
494 | errno = e; | |
495 | ||
496 | if (fd < 0) { | |
497 | if (i->type == WRITE_FILE && errno == ENOENT) | |
498 | return 0; | |
499 | ||
500 | log_error("Failed to create file %s: %m", path); | |
501 | return -errno; | |
502 | } | |
503 | ||
504 | if (i->argument) { | |
505 | ssize_t n; | |
506 | size_t l; | |
54693d9b | 507 | _cleanup_free_ char *unescaped; |
d4e9eb91 | 508 | |
54693d9b DR |
509 | unescaped = cunescape(i->argument); |
510 | if (unescaped == NULL) | |
511 | return log_oom(); | |
d4e9eb91 | 512 | |
54693d9b DR |
513 | l = strlen(unescaped); |
514 | n = write(fd, unescaped, l); | |
d4e9eb91 | 515 | |
d4e9eb91 DR |
516 | if (n < 0 || (size_t) n < l) { |
517 | log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write"); | |
518 | close_nointr_nofail(fd); | |
519 | return n < 0 ? n : -EIO; | |
520 | } | |
521 | } | |
522 | ||
3612fbc1 DR |
523 | close_nointr_nofail(fd); |
524 | ||
d4e9eb91 DR |
525 | if (stat(path, &st) < 0) { |
526 | log_error("stat(%s) failed: %m", path); | |
527 | return -errno; | |
528 | } | |
529 | ||
530 | if (!S_ISREG(st.st_mode)) { | |
531 | log_error("%s is not a file.", path); | |
532 | return -EEXIST; | |
533 | } | |
534 | ||
535 | r = item_set_perms(i, path); | |
536 | if (r < 0) | |
537 | return r; | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
062e01bb | 542 | static int recursive_relabel_children(Item *i, const char *path) { |
a8d88783 MS |
543 | DIR *d; |
544 | int ret = 0; | |
545 | ||
546 | /* This returns the first error we run into, but nevertheless | |
547 | * tries to go on */ | |
548 | ||
549 | d = opendir(path); | |
550 | if (!d) | |
551 | return errno == ENOENT ? 0 : -errno; | |
552 | ||
553 | for (;;) { | |
7d5e9c0f LP |
554 | struct dirent *de; |
555 | union dirent_storage buf; | |
a8d88783 MS |
556 | bool is_dir; |
557 | int r; | |
558 | char *entry_path; | |
559 | ||
7d5e9c0f | 560 | r = readdir_r(d, &buf.de, &de); |
a8d88783 MS |
561 | if (r != 0) { |
562 | if (ret == 0) | |
563 | ret = -r; | |
564 | break; | |
565 | } | |
566 | ||
567 | if (!de) | |
568 | break; | |
569 | ||
570 | if (streq(de->d_name, ".") || streq(de->d_name, "..")) | |
571 | continue; | |
572 | ||
573 | if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) { | |
574 | if (ret == 0) | |
575 | ret = -ENOMEM; | |
576 | continue; | |
577 | } | |
578 | ||
579 | if (de->d_type == DT_UNKNOWN) { | |
580 | struct stat st; | |
581 | ||
582 | if (lstat(entry_path, &st) < 0) { | |
583 | if (ret == 0 && errno != ENOENT) | |
584 | ret = -errno; | |
585 | free(entry_path); | |
586 | continue; | |
587 | } | |
588 | ||
589 | is_dir = S_ISDIR(st.st_mode); | |
590 | ||
591 | } else | |
592 | is_dir = de->d_type == DT_DIR; | |
593 | ||
062e01bb | 594 | r = item_set_perms(i, entry_path); |
a8d88783 MS |
595 | if (r < 0) { |
596 | if (ret == 0 && r != -ENOENT) | |
597 | ret = r; | |
598 | free(entry_path); | |
599 | continue; | |
600 | } | |
601 | ||
602 | if (is_dir) { | |
062e01bb | 603 | r = recursive_relabel_children(i, entry_path); |
a8d88783 MS |
604 | if (r < 0 && ret == 0) |
605 | ret = r; | |
606 | } | |
607 | ||
608 | free(entry_path); | |
609 | } | |
610 | ||
611 | closedir(d); | |
612 | ||
613 | return ret; | |
614 | } | |
615 | ||
616 | static int recursive_relabel(Item *i, const char *path) { | |
617 | int r; | |
618 | struct stat st; | |
619 | ||
062e01bb | 620 | r = item_set_perms(i, path); |
a8d88783 MS |
621 | if (r < 0) |
622 | return r; | |
623 | ||
624 | if (lstat(path, &st) < 0) | |
625 | return -errno; | |
626 | ||
627 | if (S_ISDIR(st.st_mode)) | |
062e01bb | 628 | r = recursive_relabel_children(i, path); |
a8d88783 MS |
629 | |
630 | return r; | |
631 | } | |
632 | ||
99e68c0b MS |
633 | static int glob_item(Item *i, int (*action)(Item *, const char *)) { |
634 | int r = 0, k; | |
635 | glob_t g; | |
636 | char **fn; | |
637 | ||
638 | zero(g); | |
639 | ||
640 | errno = 0; | |
641 | if ((k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g)) != 0) { | |
642 | ||
643 | if (k != GLOB_NOMATCH) { | |
644 | if (errno != 0) | |
645 | errno = EIO; | |
646 | ||
647 | log_error("glob(%s) failed: %m", i->path); | |
648 | return -errno; | |
649 | } | |
650 | } | |
651 | ||
652 | STRV_FOREACH(fn, g.gl_pathv) | |
653 | if ((k = action(i, *fn)) < 0) | |
654 | r = k; | |
655 | ||
656 | globfree(&g); | |
657 | return r; | |
658 | } | |
659 | ||
3b63d2d3 | 660 | static int create_item(Item *i) { |
e9a5ef7c | 661 | int r, e; |
3b63d2d3 LP |
662 | mode_t u; |
663 | struct stat st; | |
5008d581 | 664 | |
3b63d2d3 | 665 | assert(i); |
5008d581 | 666 | |
3b63d2d3 LP |
667 | switch (i->type) { |
668 | ||
669 | case IGNORE_PATH: | |
670 | case REMOVE_PATH: | |
671 | case RECURSIVE_REMOVE_PATH: | |
672 | return 0; | |
5008d581 | 673 | |
3b63d2d3 | 674 | case CREATE_FILE: |
31ed59c5 | 675 | case TRUNCATE_FILE: |
1845fdd9 DR |
676 | r = write_one_file(i, i->path); |
677 | if (r < 0) | |
678 | return r; | |
679 | break; | |
d4e9eb91 DR |
680 | case WRITE_FILE: |
681 | r = glob_item(i, write_one_file); | |
f05bc3f7 MS |
682 | if (r < 0) |
683 | return r; | |
5008d581 | 684 | |
3b63d2d3 LP |
685 | break; |
686 | ||
687 | case TRUNCATE_DIRECTORY: | |
688 | case CREATE_DIRECTORY: | |
5008d581 LP |
689 | |
690 | u = umask(0); | |
d2e54fae | 691 | mkdir_parents_label(i->path, 0755); |
3b63d2d3 | 692 | r = mkdir(i->path, i->mode); |
5008d581 LP |
693 | umask(u); |
694 | ||
695 | if (r < 0 && errno != EEXIST) { | |
3b63d2d3 | 696 | log_error("Failed to create directory %s: %m", i->path); |
f05bc3f7 | 697 | return -errno; |
5008d581 LP |
698 | } |
699 | ||
3b63d2d3 LP |
700 | if (stat(i->path, &st) < 0) { |
701 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 702 | return -errno; |
5008d581 LP |
703 | } |
704 | ||
705 | if (!S_ISDIR(st.st_mode)) { | |
3b63d2d3 | 706 | log_error("%s is not a directory.", i->path); |
f05bc3f7 | 707 | return -EEXIST; |
5008d581 LP |
708 | } |
709 | ||
062e01bb | 710 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
711 | if (r < 0) |
712 | return r; | |
3b63d2d3 LP |
713 | |
714 | break; | |
ee17ee7c LP |
715 | |
716 | case CREATE_FIFO: | |
717 | ||
718 | u = umask(0); | |
719 | r = mkfifo(i->path, i->mode); | |
720 | umask(u); | |
721 | ||
722 | if (r < 0 && errno != EEXIST) { | |
723 | log_error("Failed to create fifo %s: %m", i->path); | |
f05bc3f7 | 724 | return -errno; |
ee17ee7c LP |
725 | } |
726 | ||
727 | if (stat(i->path, &st) < 0) { | |
728 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 729 | return -errno; |
ee17ee7c LP |
730 | } |
731 | ||
732 | if (!S_ISFIFO(st.st_mode)) { | |
733 | log_error("%s is not a fifo.", i->path); | |
f05bc3f7 | 734 | return -EEXIST; |
ee17ee7c LP |
735 | } |
736 | ||
062e01bb | 737 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
738 | if (r < 0) |
739 | return r; | |
ee17ee7c LP |
740 | |
741 | break; | |
a8d88783 | 742 | |
468d726b LP |
743 | case CREATE_SYMLINK: { |
744 | char *x; | |
745 | ||
e9a5ef7c | 746 | label_context_set(i->path, S_IFLNK); |
468d726b | 747 | r = symlink(i->argument, i->path); |
e9a5ef7c KS |
748 | e = errno; |
749 | label_context_clear(); | |
750 | errno = e; | |
751 | ||
468d726b LP |
752 | if (r < 0 && errno != EEXIST) { |
753 | log_error("symlink(%s, %s) failed: %m", i->argument, i->path); | |
754 | return -errno; | |
755 | } | |
756 | ||
757 | r = readlink_malloc(i->path, &x); | |
758 | if (r < 0) { | |
759 | log_error("readlink(%s) failed: %s", i->path, strerror(-r)); | |
760 | return -errno; | |
761 | } | |
762 | ||
763 | if (!streq(i->argument, x)) { | |
764 | free(x); | |
765 | log_error("%s is not the right symlinks.", i->path); | |
766 | return -EEXIST; | |
767 | } | |
768 | ||
769 | free(x); | |
770 | break; | |
771 | } | |
772 | ||
773 | case CREATE_BLOCK_DEVICE: | |
774 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
775 | mode_t file_type; |
776 | ||
777 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
778 | /* In a container we lack CAP_MKNOD. We | |
779 | shouldnt attempt to create the device node in | |
780 | that case to avoid noise, and we don't support | |
781 | virtualized devices in containers anyway. */ | |
782 | ||
783 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
784 | return 0; | |
785 | } | |
786 | ||
787 | file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR); | |
468d726b LP |
788 | |
789 | u = umask(0); | |
e7aee759 MS |
790 | label_context_set(i->path, file_type); |
791 | r = mknod(i->path, i->mode | file_type, i->major_minor); | |
e9a5ef7c KS |
792 | e = errno; |
793 | label_context_clear(); | |
468d726b | 794 | umask(u); |
e9a5ef7c | 795 | errno = e; |
468d726b LP |
796 | |
797 | if (r < 0 && errno != EEXIST) { | |
798 | log_error("Failed to create device node %s: %m", i->path); | |
799 | return -errno; | |
800 | } | |
801 | ||
802 | if (stat(i->path, &st) < 0) { | |
803 | log_error("stat(%s) failed: %m", i->path); | |
804 | return -errno; | |
805 | } | |
806 | ||
e7aee759 | 807 | if ((st.st_mode & S_IFMT) != file_type) { |
468d726b LP |
808 | log_error("%s is not a device node.", i->path); |
809 | return -EEXIST; | |
810 | } | |
811 | ||
812 | r = item_set_perms(i, i->path); | |
813 | if (r < 0) | |
814 | return r; | |
815 | ||
816 | break; | |
817 | } | |
818 | ||
777b87e7 MS |
819 | case RELABEL_PATH: |
820 | ||
821 | r = glob_item(i, item_set_perms); | |
822 | if (r < 0) | |
823 | return 0; | |
824 | break; | |
825 | ||
a8d88783 MS |
826 | case RECURSIVE_RELABEL_PATH: |
827 | ||
828 | r = glob_item(i, recursive_relabel); | |
829 | if (r < 0) | |
830 | return r; | |
3b63d2d3 LP |
831 | } |
832 | ||
3b63d2d3 LP |
833 | log_debug("%s created successfully.", i->path); |
834 | ||
f05bc3f7 | 835 | return 0; |
3b63d2d3 LP |
836 | } |
837 | ||
a0896123 | 838 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
839 | int r; |
840 | ||
841 | assert(i); | |
842 | ||
843 | switch (i->type) { | |
844 | ||
845 | case CREATE_FILE: | |
846 | case TRUNCATE_FILE: | |
847 | case CREATE_DIRECTORY: | |
ee17ee7c | 848 | case CREATE_FIFO: |
468d726b LP |
849 | case CREATE_SYMLINK: |
850 | case CREATE_BLOCK_DEVICE: | |
851 | case CREATE_CHAR_DEVICE: | |
3b63d2d3 | 852 | case IGNORE_PATH: |
777b87e7 | 853 | case RELABEL_PATH: |
a8d88783 | 854 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 855 | case WRITE_FILE: |
3b63d2d3 LP |
856 | break; |
857 | ||
858 | case REMOVE_PATH: | |
b8bb3e8f LP |
859 | if (remove(instance) < 0 && errno != ENOENT) { |
860 | log_error("remove(%s): %m", instance); | |
3b63d2d3 | 861 | return -errno; |
5008d581 | 862 | } |
3b63d2d3 LP |
863 | |
864 | break; | |
865 | ||
866 | case TRUNCATE_DIRECTORY: | |
867 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
868 | /* FIXME: we probably should use dir_cleanup() here |
869 | * instead of rm_rf() so that 'x' is honoured. */ | |
f56d5db9 | 870 | r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false); |
468d726b | 871 | if (r < 0 && r != -ENOENT) { |
b8bb3e8f | 872 | log_error("rm_rf(%s): %s", instance, strerror(-r)); |
3b63d2d3 LP |
873 | return r; |
874 | } | |
875 | ||
876 | break; | |
877 | } | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
a0896123 | 882 | static int remove_item(Item *i) { |
99e68c0b MS |
883 | int r = 0; |
884 | ||
b8bb3e8f LP |
885 | assert(i); |
886 | ||
887 | switch (i->type) { | |
888 | ||
889 | case CREATE_FILE: | |
890 | case TRUNCATE_FILE: | |
891 | case CREATE_DIRECTORY: | |
ee17ee7c | 892 | case CREATE_FIFO: |
468d726b LP |
893 | case CREATE_SYMLINK: |
894 | case CREATE_CHAR_DEVICE: | |
895 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 896 | case IGNORE_PATH: |
777b87e7 | 897 | case RELABEL_PATH: |
a8d88783 | 898 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 899 | case WRITE_FILE: |
b8bb3e8f LP |
900 | break; |
901 | ||
902 | case REMOVE_PATH: | |
903 | case TRUNCATE_DIRECTORY: | |
99e68c0b MS |
904 | case RECURSIVE_REMOVE_PATH: |
905 | r = glob_item(i, remove_item_instance); | |
906 | break; | |
b8bb3e8f LP |
907 | } |
908 | ||
99e68c0b | 909 | return r; |
b8bb3e8f LP |
910 | } |
911 | ||
3b63d2d3 LP |
912 | static int process_item(Item *i) { |
913 | int r, q, p; | |
914 | ||
915 | assert(i); | |
916 | ||
917 | r = arg_create ? create_item(i) : 0; | |
a0896123 | 918 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
919 | p = arg_clean ? clean_item(i) : 0; |
920 | ||
921 | if (r < 0) | |
922 | return r; | |
923 | ||
924 | if (q < 0) | |
925 | return q; | |
926 | ||
927 | return p; | |
928 | } | |
929 | ||
930 | static void item_free(Item *i) { | |
931 | assert(i); | |
932 | ||
933 | free(i->path); | |
468d726b | 934 | free(i->argument); |
3b63d2d3 LP |
935 | free(i); |
936 | } | |
937 | ||
bfe95f35 LP |
938 | static bool item_equal(Item *a, Item *b) { |
939 | assert(a); | |
940 | assert(b); | |
941 | ||
942 | if (!streq_ptr(a->path, b->path)) | |
943 | return false; | |
944 | ||
945 | if (a->type != b->type) | |
946 | return false; | |
947 | ||
948 | if (a->uid_set != b->uid_set || | |
949 | (a->uid_set && a->uid != b->uid)) | |
950 | return false; | |
951 | ||
952 | if (a->gid_set != b->gid_set || | |
953 | (a->gid_set && a->gid != b->gid)) | |
954 | return false; | |
955 | ||
956 | if (a->mode_set != b->mode_set || | |
957 | (a->mode_set && a->mode != b->mode)) | |
958 | return false; | |
959 | ||
960 | if (a->age_set != b->age_set || | |
961 | (a->age_set && a->age != b->age)) | |
962 | return false; | |
963 | ||
31ed59c5 LP |
964 | if ((a->type == CREATE_FILE || |
965 | a->type == TRUNCATE_FILE || | |
966 | a->type == WRITE_FILE || | |
967 | a->type == CREATE_SYMLINK) && | |
1733ca54 | 968 | !streq_ptr(a->argument, b->argument)) |
468d726b LP |
969 | return false; |
970 | ||
971 | if ((a->type == CREATE_CHAR_DEVICE || | |
972 | a->type == CREATE_BLOCK_DEVICE) && | |
973 | a->major_minor != b->major_minor) | |
974 | return false; | |
975 | ||
bfe95f35 LP |
976 | return true; |
977 | } | |
978 | ||
fba6e687 | 979 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
bfe95f35 | 980 | Item *i, *existing; |
3b63d2d3 | 981 | char *mode = NULL, *user = NULL, *group = NULL, *age = NULL; |
66ccd038 | 982 | char type; |
bfe95f35 | 983 | Hashmap *h; |
31ed59c5 | 984 | int r, n = -1; |
3b63d2d3 LP |
985 | |
986 | assert(fname); | |
987 | assert(line >= 1); | |
988 | assert(buffer); | |
989 | ||
468d726b | 990 | i = new0(Item, 1); |
0d0f0c50 SL |
991 | if (!i) |
992 | return log_oom(); | |
3b63d2d3 | 993 | |
bd40a2d8 LP |
994 | if (sscanf(buffer, |
995 | "%c " | |
996 | "%ms " | |
997 | "%ms " | |
998 | "%ms " | |
999 | "%ms " | |
468d726b | 1000 | "%ms " |
31ed59c5 | 1001 | "%n", |
66ccd038 | 1002 | &type, |
bd40a2d8 LP |
1003 | &i->path, |
1004 | &mode, | |
1005 | &user, | |
1006 | &group, | |
468d726b | 1007 | &age, |
31ed59c5 | 1008 | &n) < 2) { |
3b63d2d3 LP |
1009 | log_error("[%s:%u] Syntax error.", fname, line); |
1010 | r = -EIO; | |
1011 | goto finish; | |
5008d581 LP |
1012 | } |
1013 | ||
31ed59c5 LP |
1014 | if (n >= 0) { |
1015 | n += strspn(buffer+n, WHITESPACE); | |
1016 | if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) { | |
1017 | i->argument = unquote(buffer+n, "\""); | |
0d0f0c50 SL |
1018 | if (!i->argument) |
1019 | return log_oom(); | |
31ed59c5 LP |
1020 | } |
1021 | } | |
1022 | ||
777b87e7 | 1023 | switch(type) { |
468d726b | 1024 | |
777b87e7 MS |
1025 | case CREATE_FILE: |
1026 | case TRUNCATE_FILE: | |
1027 | case CREATE_DIRECTORY: | |
1028 | case TRUNCATE_DIRECTORY: | |
1029 | case CREATE_FIFO: | |
1030 | case IGNORE_PATH: | |
1031 | case REMOVE_PATH: | |
1032 | case RECURSIVE_REMOVE_PATH: | |
1033 | case RELABEL_PATH: | |
1034 | case RECURSIVE_RELABEL_PATH: | |
1035 | break; | |
468d726b LP |
1036 | |
1037 | case CREATE_SYMLINK: | |
1038 | if (!i->argument) { | |
1039 | log_error("[%s:%u] Symlink file requires argument.", fname, line); | |
1040 | r = -EBADMSG; | |
1041 | goto finish; | |
1042 | } | |
1043 | break; | |
1044 | ||
31ed59c5 LP |
1045 | case WRITE_FILE: |
1046 | if (!i->argument) { | |
1047 | log_error("[%s:%u] Write file requires argument.", fname, line); | |
1048 | r = -EBADMSG; | |
1049 | goto finish; | |
1050 | } | |
1051 | break; | |
1052 | ||
468d726b LP |
1053 | case CREATE_CHAR_DEVICE: |
1054 | case CREATE_BLOCK_DEVICE: { | |
1055 | unsigned major, minor; | |
1056 | ||
1057 | if (!i->argument) { | |
1058 | log_error("[%s:%u] Device file requires argument.", fname, line); | |
1059 | r = -EBADMSG; | |
1060 | goto finish; | |
1061 | } | |
1062 | ||
1063 | if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) { | |
1064 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument); | |
1065 | r = -EBADMSG; | |
1066 | goto finish; | |
1067 | } | |
1068 | ||
1069 | i->major_minor = makedev(major, minor); | |
1070 | break; | |
1071 | } | |
1072 | ||
777b87e7 | 1073 | default: |
a8d88783 | 1074 | log_error("[%s:%u] Unknown file type '%c'.", fname, line, type); |
3b63d2d3 | 1075 | r = -EBADMSG; |
4aa8b15b | 1076 | goto finish; |
3b63d2d3 | 1077 | } |
468d726b | 1078 | |
a8d88783 | 1079 | i->type = type; |
3b63d2d3 LP |
1080 | |
1081 | if (!path_is_absolute(i->path)) { | |
1082 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path); | |
1083 | r = -EBADMSG; | |
1084 | goto finish; | |
1085 | } | |
1086 | ||
1087 | path_kill_slashes(i->path); | |
1088 | ||
fba6e687 | 1089 | if (arg_prefix && !path_startswith(i->path, arg_prefix)) { |
3b63d2d3 LP |
1090 | r = 0; |
1091 | goto finish; | |
1092 | } | |
5008d581 | 1093 | |
3b63d2d3 | 1094 | if (user && !streq(user, "-")) { |
4b67834e LP |
1095 | const char *u = user; |
1096 | ||
d05c5031 | 1097 | r = get_user_creds(&u, &i->uid, NULL, NULL, NULL); |
4b67834e | 1098 | if (r < 0) { |
3b63d2d3 | 1099 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
3b63d2d3 LP |
1100 | goto finish; |
1101 | } | |
1102 | ||
1103 | i->uid_set = true; | |
1104 | } | |
1105 | ||
1106 | if (group && !streq(group, "-")) { | |
4b67834e LP |
1107 | const char *g = group; |
1108 | ||
1109 | r = get_group_creds(&g, &i->gid); | |
1110 | if (r < 0) { | |
3b63d2d3 | 1111 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
3b63d2d3 LP |
1112 | goto finish; |
1113 | } | |
1114 | ||
1115 | i->gid_set = true; | |
1116 | } | |
1117 | ||
1118 | if (mode && !streq(mode, "-")) { | |
1119 | unsigned m; | |
1120 | ||
1121 | if (sscanf(mode, "%o", &m) != 1) { | |
1122 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); | |
1123 | r = -ENOENT; | |
1124 | goto finish; | |
1125 | } | |
1126 | ||
1127 | i->mode = m; | |
1128 | i->mode_set = true; | |
1129 | } else | |
468d726b LP |
1130 | i->mode = |
1131 | i->type == CREATE_DIRECTORY || | |
1132 | i->type == TRUNCATE_DIRECTORY ? 0755 : 0644; | |
3b63d2d3 LP |
1133 | |
1134 | if (age && !streq(age, "-")) { | |
24f3a374 LP |
1135 | const char *a = age; |
1136 | ||
1137 | if (*a == '~') { | |
1138 | i->keep_first_level = true; | |
1139 | a++; | |
1140 | } | |
1141 | ||
1142 | if (parse_usec(a, &i->age) < 0) { | |
3b63d2d3 LP |
1143 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
1144 | r = -EBADMSG; | |
1145 | goto finish; | |
1146 | } | |
1147 | ||
1148 | i->age_set = true; | |
1149 | } | |
1150 | ||
bfe95f35 LP |
1151 | h = needs_glob(i->type) ? globs : items; |
1152 | ||
468d726b LP |
1153 | existing = hashmap_get(h, i->path); |
1154 | if (existing) { | |
bfe95f35 LP |
1155 | |
1156 | /* Two identical items are fine */ | |
1157 | if (!item_equal(existing, i)) | |
022707d9 | 1158 | log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path); |
022707d9 | 1159 | |
bfe95f35 LP |
1160 | r = 0; |
1161 | goto finish; | |
1162 | } | |
1163 | ||
468d726b LP |
1164 | r = hashmap_put(h, i->path, i); |
1165 | if (r < 0) { | |
3b63d2d3 LP |
1166 | log_error("Failed to insert item %s: %s", i->path, strerror(-r)); |
1167 | goto finish; | |
1168 | } | |
1169 | ||
1170 | i = NULL; | |
4aa8b15b | 1171 | r = 0; |
5008d581 LP |
1172 | |
1173 | finish: | |
5008d581 LP |
1174 | free(user); |
1175 | free(group); | |
3b63d2d3 LP |
1176 | free(mode); |
1177 | free(age); | |
5008d581 | 1178 | |
3b63d2d3 LP |
1179 | if (i) |
1180 | item_free(i); | |
4aa8b15b LP |
1181 | |
1182 | return r; | |
5008d581 LP |
1183 | } |
1184 | ||
3b63d2d3 LP |
1185 | static int help(void) { |
1186 | ||
522d4a49 LP |
1187 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
1188 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
3b63d2d3 LP |
1189 | " -h --help Show this help\n" |
1190 | " --create Create marked files/directories\n" | |
1191 | " --clean Clean up marked directories\n" | |
fba6e687 | 1192 | " --remove Remove marked files/directories\n" |
522d4a49 | 1193 | " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n", |
3b63d2d3 LP |
1194 | program_invocation_short_name); |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | static int parse_argv(int argc, char *argv[]) { | |
1200 | ||
1201 | enum { | |
1202 | ARG_CREATE, | |
1203 | ARG_CLEAN, | |
fba6e687 LP |
1204 | ARG_REMOVE, |
1205 | ARG_PREFIX | |
3b63d2d3 LP |
1206 | }; |
1207 | ||
1208 | static const struct option options[] = { | |
1209 | { "help", no_argument, NULL, 'h' }, | |
1210 | { "create", no_argument, NULL, ARG_CREATE }, | |
1211 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
1212 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
fba6e687 | 1213 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
3b63d2d3 LP |
1214 | { NULL, 0, NULL, 0 } |
1215 | }; | |
1216 | ||
1217 | int c; | |
1218 | ||
1219 | assert(argc >= 0); | |
1220 | assert(argv); | |
1221 | ||
1222 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) { | |
1223 | ||
1224 | switch (c) { | |
1225 | ||
1226 | case 'h': | |
1227 | help(); | |
1228 | return 0; | |
1229 | ||
1230 | case ARG_CREATE: | |
1231 | arg_create = true; | |
1232 | break; | |
1233 | ||
1234 | case ARG_CLEAN: | |
1235 | arg_clean = true; | |
1236 | break; | |
1237 | ||
1238 | case ARG_REMOVE: | |
1239 | arg_remove = true; | |
1240 | break; | |
1241 | ||
fba6e687 LP |
1242 | case ARG_PREFIX: |
1243 | arg_prefix = optarg; | |
1244 | break; | |
1245 | ||
3b63d2d3 LP |
1246 | case '?': |
1247 | return -EINVAL; | |
1248 | ||
1249 | default: | |
1250 | log_error("Unknown option code %c", c); | |
1251 | return -EINVAL; | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 1256 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
1257 | return -EINVAL; |
1258 | } | |
1259 | ||
1260 | return 1; | |
1261 | } | |
1262 | ||
fba6e687 LP |
1263 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1264 | FILE *f; | |
1265 | unsigned v = 0; | |
1266 | int r = 0; | |
1267 | ||
1268 | assert(fn); | |
1269 | ||
468d726b LP |
1270 | f = fopen(fn, "re"); |
1271 | if (!f) { | |
fba6e687 LP |
1272 | |
1273 | if (ignore_enoent && errno == ENOENT) | |
1274 | return 0; | |
1275 | ||
1276 | log_error("Failed to open %s: %m", fn); | |
1277 | return -errno; | |
1278 | } | |
1279 | ||
772f8371 | 1280 | log_debug("apply: %s\n", fn); |
fba6e687 LP |
1281 | for (;;) { |
1282 | char line[LINE_MAX], *l; | |
1283 | int k; | |
1284 | ||
1285 | if (!(fgets(line, sizeof(line), f))) | |
1286 | break; | |
1287 | ||
1288 | v++; | |
1289 | ||
1290 | l = strstrip(line); | |
1291 | if (*l == '#' || *l == 0) | |
1292 | continue; | |
1293 | ||
1294 | if ((k = parse_line(fn, v, l)) < 0) | |
1295 | if (r == 0) | |
1296 | r = k; | |
1297 | } | |
1298 | ||
1299 | if (ferror(f)) { | |
1300 | log_error("Failed to read from file %s: %m", fn); | |
1301 | if (r == 0) | |
1302 | r = -EIO; | |
1303 | } | |
1304 | ||
1305 | fclose(f); | |
1306 | ||
1307 | return r; | |
1308 | } | |
1309 | ||
9125670f DR |
1310 | static char *resolve_fragment(const char *fragment, const char **search_paths) { |
1311 | const char **p; | |
1312 | char *resolved_path; | |
1313 | ||
1314 | if (is_path(fragment)) | |
1315 | return strdup(fragment); | |
1316 | ||
1317 | STRV_FOREACH(p, search_paths) { | |
b7def684 | 1318 | resolved_path = strjoin(*p, "/", fragment, NULL); |
9125670f | 1319 | if (resolved_path == NULL) { |
0d0f0c50 | 1320 | log_oom(); |
9125670f DR |
1321 | return NULL; |
1322 | } | |
1323 | ||
1324 | if (access(resolved_path, F_OK) == 0) | |
1325 | return resolved_path; | |
1326 | ||
1327 | free(resolved_path); | |
1328 | } | |
1329 | ||
ca2e894b | 1330 | errno = ENOENT; |
9125670f DR |
1331 | return NULL; |
1332 | } | |
1333 | ||
5008d581 | 1334 | int main(int argc, char *argv[]) { |
fba6e687 | 1335 | int r; |
3b63d2d3 LP |
1336 | Item *i; |
1337 | Iterator iterator; | |
1338 | ||
fdcad0c2 LP |
1339 | r = parse_argv(argc, argv); |
1340 | if (r <= 0) | |
3b63d2d3 | 1341 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1342 | |
eb0ca9eb | 1343 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
1344 | log_parse_environment(); |
1345 | log_open(); | |
1346 | ||
4c12626c LP |
1347 | umask(0022); |
1348 | ||
e9a5ef7c | 1349 | label_init(NULL); |
5008d581 | 1350 | |
b8bb3e8f LP |
1351 | items = hashmap_new(string_hash_func, string_compare_func); |
1352 | globs = hashmap_new(string_hash_func, string_compare_func); | |
1353 | ||
1354 | if (!items || !globs) { | |
0d0f0c50 | 1355 | log_oom(); |
3b63d2d3 LP |
1356 | r = EXIT_FAILURE; |
1357 | goto finish; | |
1358 | } | |
1359 | ||
5008d581 LP |
1360 | r = EXIT_SUCCESS; |
1361 | ||
fba6e687 LP |
1362 | if (optind < argc) { |
1363 | int j; | |
5008d581 | 1364 | |
9125670f | 1365 | for (j = optind; j < argc; j++) { |
ca2e894b KS |
1366 | char *fragment; |
1367 | ||
796b06c2 | 1368 | fragment = resolve_fragment(argv[j], (const char **)conf_file_dirs); |
ca2e894b | 1369 | if (!fragment) { |
94f7a714 | 1370 | log_error("Failed to find a %s file: %m", argv[j]); |
ca2e894b KS |
1371 | r = EXIT_FAILURE; |
1372 | goto finish; | |
1373 | } | |
9125670f | 1374 | if (read_config_file(fragment, false) < 0) |
fba6e687 | 1375 | r = EXIT_FAILURE; |
9125670f DR |
1376 | free(fragment); |
1377 | } | |
5008d581 | 1378 | |
fba6e687 | 1379 | } else { |
772f8371 | 1380 | char **files, **f; |
5008d581 | 1381 | |
796b06c2 | 1382 | r = conf_files_list_strv(&files, ".conf", (const char **)conf_file_dirs); |
44143309 | 1383 | if (r < 0) { |
44143309 | 1384 | log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r)); |
a48f3d15 | 1385 | r = EXIT_FAILURE; |
44143309 KS |
1386 | goto finish; |
1387 | } | |
3b63d2d3 | 1388 | |
772f8371 KS |
1389 | STRV_FOREACH(f, files) { |
1390 | if (read_config_file(*f, true) < 0) | |
3b63d2d3 | 1391 | r = EXIT_FAILURE; |
5008d581 LP |
1392 | } |
1393 | ||
772f8371 KS |
1394 | strv_free(files); |
1395 | } | |
5008d581 | 1396 | |
b8bb3e8f | 1397 | HASHMAP_FOREACH(i, globs, iterator) |
21bdae12 | 1398 | process_item(i); |
b8bb3e8f | 1399 | |
3b63d2d3 | 1400 | HASHMAP_FOREACH(i, items, iterator) |
21bdae12 | 1401 | process_item(i); |
3b63d2d3 | 1402 | |
5008d581 | 1403 | finish: |
3b63d2d3 LP |
1404 | while ((i = hashmap_steal_first(items))) |
1405 | item_free(i); | |
1406 | ||
17b90525 LP |
1407 | while ((i = hashmap_steal_first(globs))) |
1408 | item_free(i); | |
1409 | ||
3b63d2d3 | 1410 | hashmap_free(items); |
b8bb3e8f | 1411 | hashmap_free(globs); |
5008d581 | 1412 | |
17b90525 LP |
1413 | set_free_free(unix_sockets); |
1414 | ||
29003cff LP |
1415 | label_finish(); |
1416 | ||
5008d581 LP |
1417 | return r; |
1418 | } |