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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" |
d39efe74 | 46 | #include "missing.h" |
49e942b2 | 47 | #include "mkdir.h" |
9eb977db | 48 | #include "path-util.h" |
5008d581 LP |
49 | #include "strv.h" |
50 | #include "label.h" | |
3b63d2d3 | 51 | #include "set.h" |
2c21044f | 52 | #include "conf-files.h" |
cb7ed9df | 53 | #include "capability.h" |
5008d581 | 54 | |
01000479 | 55 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 56 | * them in the file system. This is intended to be used to create |
db019b8d KS |
57 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
58 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 59 | |
66ccd038 | 60 | typedef enum ItemType { |
b8bb3e8f | 61 | /* These ones take file names */ |
3b63d2d3 LP |
62 | CREATE_FILE = 'f', |
63 | TRUNCATE_FILE = 'F', | |
31ed59c5 | 64 | WRITE_FILE = 'w', |
3b63d2d3 LP |
65 | CREATE_DIRECTORY = 'd', |
66 | TRUNCATE_DIRECTORY = 'D', | |
ee17ee7c | 67 | CREATE_FIFO = 'p', |
468d726b LP |
68 | CREATE_SYMLINK = 'L', |
69 | CREATE_CHAR_DEVICE = 'c', | |
70 | CREATE_BLOCK_DEVICE = 'b', | |
b8bb3e8f LP |
71 | |
72 | /* These ones take globs */ | |
3b63d2d3 | 73 | IGNORE_PATH = 'x', |
78a92a5a | 74 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 75 | REMOVE_PATH = 'r', |
a8d88783 | 76 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 77 | RELABEL_PATH = 'z', |
a8d88783 | 78 | RECURSIVE_RELABEL_PATH = 'Z' |
66ccd038 | 79 | } ItemType; |
3b63d2d3 LP |
80 | |
81 | typedef struct Item { | |
66ccd038 | 82 | ItemType type; |
3b63d2d3 LP |
83 | |
84 | char *path; | |
468d726b | 85 | char *argument; |
5008d581 LP |
86 | uid_t uid; |
87 | gid_t gid; | |
3b63d2d3 LP |
88 | mode_t mode; |
89 | usec_t age; | |
90 | ||
468d726b LP |
91 | dev_t major_minor; |
92 | ||
3b63d2d3 LP |
93 | bool uid_set:1; |
94 | bool gid_set:1; | |
95 | bool mode_set:1; | |
96 | bool age_set:1; | |
24f3a374 LP |
97 | |
98 | bool keep_first_level:1; | |
3b63d2d3 LP |
99 | } Item; |
100 | ||
b8bb3e8f | 101 | static Hashmap *items = NULL, *globs = NULL; |
17b90525 | 102 | static Set *unix_sockets = NULL; |
3b63d2d3 LP |
103 | |
104 | static bool arg_create = false; | |
105 | static bool arg_clean = false; | |
106 | static bool arg_remove = false; | |
107 | ||
fba6e687 LP |
108 | static const char *arg_prefix = NULL; |
109 | ||
fabe5c0e LP |
110 | static const char conf_file_dirs[] = |
111 | "/etc/tmpfiles.d\0" | |
112 | "/run/tmpfiles.d\0" | |
113 | "/usr/local/lib/tmpfiles.d\0" | |
114 | "/usr/lib/tmpfiles.d\0" | |
3f2afb29 | 115 | #ifdef HAVE_SPLIT_USR |
fabe5c0e | 116 | "/lib/tmpfiles.d\0" |
3f2afb29 | 117 | #endif |
fabe5c0e | 118 | ; |
9125670f | 119 | |
3b63d2d3 LP |
120 | #define MAX_DEPTH 256 |
121 | ||
66ccd038 | 122 | static bool needs_glob(ItemType t) { |
78a92a5a | 123 | return t == IGNORE_PATH || t == IGNORE_DIRECTORY_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_PATH; |
b8bb3e8f LP |
124 | } |
125 | ||
126 | static struct Item* find_glob(Hashmap *h, const char *match) { | |
127 | Item *j; | |
128 | Iterator i; | |
129 | ||
130 | HASHMAP_FOREACH(j, h, i) | |
131 | if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
132 | return j; | |
133 | ||
134 | return NULL; | |
135 | } | |
136 | ||
17b90525 | 137 | static void load_unix_sockets(void) { |
19fbec19 | 138 | FILE _cleanup_fclose_ *f = NULL; |
17b90525 LP |
139 | char line[LINE_MAX]; |
140 | ||
141 | if (unix_sockets) | |
142 | return; | |
143 | ||
144 | /* We maintain a cache of the sockets we found in | |
145 | * /proc/net/unix to speed things up a little. */ | |
146 | ||
fdcad0c2 LP |
147 | unix_sockets = set_new(string_hash_func, string_compare_func); |
148 | if (!unix_sockets) | |
17b90525 LP |
149 | return; |
150 | ||
fdcad0c2 LP |
151 | f = fopen("/proc/net/unix", "re"); |
152 | if (!f) | |
17b90525 LP |
153 | return; |
154 | ||
fdcad0c2 LP |
155 | /* Skip header */ |
156 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
157 | goto fail; |
158 | ||
159 | for (;;) { | |
160 | char *p, *s; | |
161 | int k; | |
162 | ||
fdcad0c2 | 163 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
164 | break; |
165 | ||
166 | truncate_nl(line); | |
167 | ||
fdcad0c2 LP |
168 | p = strchr(line, ':'); |
169 | if (!p) | |
170 | continue; | |
171 | ||
172 | if (strlen(p) < 37) | |
17b90525 LP |
173 | continue; |
174 | ||
fdcad0c2 | 175 | p += 37; |
17b90525 | 176 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 177 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
178 | p += strspn(p, WHITESPACE); |
179 | ||
180 | if (*p != '/') | |
181 | continue; | |
182 | ||
fdcad0c2 LP |
183 | s = strdup(p); |
184 | if (!s) | |
17b90525 LP |
185 | goto fail; |
186 | ||
4ff21d85 LP |
187 | path_kill_slashes(s); |
188 | ||
fdcad0c2 LP |
189 | k = set_put(unix_sockets, s); |
190 | if (k < 0) { | |
17b90525 LP |
191 | free(s); |
192 | ||
193 | if (k != -EEXIST) | |
194 | goto fail; | |
195 | } | |
196 | } | |
197 | ||
198 | return; | |
199 | ||
200 | fail: | |
201 | set_free_free(unix_sockets); | |
202 | unix_sockets = NULL; | |
17b90525 LP |
203 | } |
204 | ||
205 | static bool unix_socket_alive(const char *fn) { | |
206 | assert(fn); | |
207 | ||
208 | load_unix_sockets(); | |
209 | ||
210 | if (unix_sockets) | |
211 | return !!set_get(unix_sockets, (char*) fn); | |
212 | ||
213 | /* We don't know, so assume yes */ | |
214 | return true; | |
215 | } | |
216 | ||
99d680ac KS |
217 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
218 | struct file_handle *h; | |
219 | int mount_id_parent, mount_id; | |
220 | int r_p, r; | |
221 | ||
222 | h = alloca(MAX_HANDLE_SZ); | |
223 | ||
224 | h->handle_bytes = MAX_HANDLE_SZ; | |
225 | r_p = name_to_handle_at(dirfd(d), ".", h, &mount_id_parent, 0); | |
226 | if (r_p < 0) | |
227 | r_p = -errno; | |
228 | ||
229 | h->handle_bytes = MAX_HANDLE_SZ; | |
230 | r = name_to_handle_at(dirfd(d), subdir, h, &mount_id, 0); | |
231 | if (r < 0) | |
232 | r = -errno; | |
233 | ||
234 | /* got no handle; make no assumptions, return error */ | |
235 | if (r_p < 0 && r < 0) | |
236 | return r_p; | |
237 | ||
238 | /* got both handles; if they differ, it is a mount point */ | |
239 | if (r_p >= 0 && r >= 0) | |
240 | return mount_id_parent != mount_id; | |
241 | ||
242 | /* got only one handle; assume different mount points if one | |
243 | * of both queries was not supported by the filesystem */ | |
244 | if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP) | |
245 | return true; | |
246 | ||
247 | /* return error */ | |
248 | if (r_p < 0) | |
249 | return r_p; | |
250 | return r; | |
251 | } | |
252 | ||
3b63d2d3 | 253 | static int dir_cleanup( |
78a92a5a | 254 | Item *i, |
3b63d2d3 LP |
255 | const char *p, |
256 | DIR *d, | |
257 | const struct stat *ds, | |
258 | usec_t cutoff, | |
259 | dev_t rootdev, | |
260 | bool mountpoint, | |
24f3a374 LP |
261 | int maxdepth, |
262 | bool keep_this_level) | |
3b63d2d3 LP |
263 | { |
264 | struct dirent *dent; | |
265 | struct timespec times[2]; | |
266 | bool deleted = false; | |
3b63d2d3 LP |
267 | int r = 0; |
268 | ||
269 | while ((dent = readdir(d))) { | |
270 | struct stat s; | |
271 | usec_t age; | |
19fbec19 | 272 | char _cleanup_free_ *sub_path = NULL; |
3b63d2d3 LP |
273 | |
274 | if (streq(dent->d_name, ".") || | |
275 | streq(dent->d_name, "..")) | |
276 | continue; | |
5008d581 | 277 | |
3b63d2d3 | 278 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
5008d581 | 279 | |
3b63d2d3 LP |
280 | if (errno != ENOENT) { |
281 | log_error("stat(%s/%s) failed: %m", p, dent->d_name); | |
282 | r = -errno; | |
283 | } | |
284 | ||
285 | continue; | |
286 | } | |
287 | ||
288 | /* Stay on the same filesystem */ | |
289 | if (s.st_dev != rootdev) | |
290 | continue; | |
291 | ||
99d680ac KS |
292 | /* Try to detect bind mounts of the same filesystem instance; they |
293 | * do not differ in device major/minors. This type of query is not | |
294 | * supported on all kernels or filesystem types though. */ | |
295 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) | |
296 | continue; | |
297 | ||
3b63d2d3 LP |
298 | /* Do not delete read-only files owned by root */ |
299 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) | |
300 | continue; | |
301 | ||
3b63d2d3 | 302 | if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) { |
0d0f0c50 | 303 | r = log_oom(); |
3b63d2d3 LP |
304 | goto finish; |
305 | } | |
306 | ||
307 | /* Is there an item configured for this path? */ | |
308 | if (hashmap_get(items, sub_path)) | |
309 | continue; | |
310 | ||
b8bb3e8f LP |
311 | if (find_glob(globs, sub_path)) |
312 | continue; | |
313 | ||
3b63d2d3 LP |
314 | if (S_ISDIR(s.st_mode)) { |
315 | ||
316 | if (mountpoint && | |
317 | streq(dent->d_name, "lost+found") && | |
318 | s.st_uid == 0) | |
319 | continue; | |
320 | ||
321 | if (maxdepth <= 0) | |
322 | log_warning("Reached max depth on %s.", sub_path); | |
323 | else { | |
19fbec19 | 324 | DIR _cleanup_closedir_ *sub_dir; |
3b63d2d3 LP |
325 | int q; |
326 | ||
e5f3d1ba | 327 | sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME); |
3b63d2d3 LP |
328 | if (sub_dir == NULL) { |
329 | if (errno != ENOENT) { | |
330 | log_error("opendir(%s/%s) failed: %m", p, dent->d_name); | |
331 | r = -errno; | |
332 | } | |
333 | ||
334 | continue; | |
335 | } | |
336 | ||
78a92a5a | 337 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
338 | |
339 | if (q < 0) | |
340 | r = q; | |
341 | } | |
342 | ||
24f3a374 LP |
343 | /* Note: if you are wondering why we don't |
344 | * support the sticky bit for excluding | |
345 | * directories from cleaning like we do it for | |
346 | * other file system objects: well, the sticky | |
347 | * bit already has a meaning for directories, | |
348 | * so we don't want to overload that. */ | |
349 | ||
350 | if (keep_this_level) | |
351 | continue; | |
352 | ||
3b63d2d3 LP |
353 | /* Ignore ctime, we change it when deleting */ |
354 | age = MAX(timespec_load(&s.st_mtim), | |
355 | timespec_load(&s.st_atim)); | |
356 | if (age >= cutoff) | |
357 | continue; | |
358 | ||
a6187d4c | 359 | if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) { |
78a92a5a | 360 | log_debug("rmdir '%s'\n", sub_path); |
3b63d2d3 | 361 | |
78a92a5a MS |
362 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) { |
363 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
364 | log_error("rmdir(%s): %m", sub_path); | |
365 | r = -errno; | |
366 | } | |
3b63d2d3 LP |
367 | } |
368 | } | |
369 | ||
370 | } else { | |
9c73736d LP |
371 | /* Skip files for which the sticky bit is |
372 | * set. These are semantics we define, and are | |
373 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
374 | * specification for details. */ | |
375 | if (s.st_mode & S_ISVTX) | |
376 | continue; | |
377 | ||
17b90525 | 378 | if (mountpoint && S_ISREG(s.st_mode)) { |
3b63d2d3 LP |
379 | if (streq(dent->d_name, ".journal") && |
380 | s.st_uid == 0) | |
381 | continue; | |
382 | ||
383 | if (streq(dent->d_name, "aquota.user") || | |
384 | streq(dent->d_name, "aquota.group")) | |
385 | continue; | |
386 | } | |
387 | ||
17b90525 LP |
388 | /* Ignore sockets that are listed in /proc/net/unix */ |
389 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) | |
390 | continue; | |
391 | ||
78ab08eb LP |
392 | /* Ignore device nodes */ |
393 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) | |
394 | continue; | |
395 | ||
24f3a374 LP |
396 | /* Keep files on this level around if this is |
397 | * requested */ | |
398 | if (keep_this_level) | |
399 | continue; | |
400 | ||
3b63d2d3 LP |
401 | age = MAX3(timespec_load(&s.st_mtim), |
402 | timespec_load(&s.st_atim), | |
403 | timespec_load(&s.st_ctim)); | |
404 | ||
405 | if (age >= cutoff) | |
406 | continue; | |
407 | ||
408 | log_debug("unlink '%s'\n", sub_path); | |
409 | ||
410 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) { | |
411 | if (errno != ENOENT) { | |
412 | log_error("unlink(%s): %m", sub_path); | |
413 | r = -errno; | |
414 | } | |
415 | } | |
416 | ||
417 | deleted = true; | |
418 | } | |
419 | } | |
420 | ||
421 | finish: | |
422 | if (deleted) { | |
423 | /* Restore original directory timestamps */ | |
424 | times[0] = ds->st_atim; | |
425 | times[1] = ds->st_mtim; | |
426 | ||
427 | if (futimens(dirfd(d), times) < 0) | |
428 | log_error("utimensat(%s): %m", p); | |
429 | } | |
430 | ||
3b63d2d3 LP |
431 | return r; |
432 | } | |
433 | ||
062e01bb MS |
434 | static int item_set_perms(Item *i, const char *path) { |
435 | /* not using i->path directly because it may be a glob */ | |
436 | if (i->mode_set) | |
437 | if (chmod(path, i->mode) < 0) { | |
438 | log_error("chmod(%s) failed: %m", path); | |
439 | return -errno; | |
440 | } | |
441 | ||
442 | if (i->uid_set || i->gid_set) | |
443 | if (chown(path, | |
444 | i->uid_set ? i->uid : (uid_t) -1, | |
445 | i->gid_set ? i->gid : (gid_t) -1) < 0) { | |
446 | ||
447 | log_error("chown(%s) failed: %m", path); | |
448 | return -errno; | |
449 | } | |
450 | ||
c9bc0764 | 451 | return label_fix(path, false, false); |
062e01bb MS |
452 | } |
453 | ||
d4e9eb91 DR |
454 | static int write_one_file(Item *i, const char *path) { |
455 | int r, e, fd, flags; | |
456 | struct stat st; | |
d4e9eb91 DR |
457 | |
458 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND : | |
459 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0; | |
460 | ||
5c0d398d LP |
461 | RUN_WITH_UMASK(0) { |
462 | label_context_set(path, S_IFREG); | |
463 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode); | |
464 | e = errno; | |
465 | label_context_clear(); | |
466 | errno = e; | |
467 | } | |
d4e9eb91 DR |
468 | |
469 | if (fd < 0) { | |
470 | if (i->type == WRITE_FILE && errno == ENOENT) | |
471 | return 0; | |
472 | ||
473 | log_error("Failed to create file %s: %m", path); | |
474 | return -errno; | |
475 | } | |
476 | ||
477 | if (i->argument) { | |
478 | ssize_t n; | |
479 | size_t l; | |
54693d9b | 480 | _cleanup_free_ char *unescaped; |
d4e9eb91 | 481 | |
54693d9b | 482 | unescaped = cunescape(i->argument); |
3785ba69 TJ |
483 | if (unescaped == NULL) { |
484 | close_nointr_nofail(fd); | |
54693d9b | 485 | return log_oom(); |
3785ba69 | 486 | } |
d4e9eb91 | 487 | |
54693d9b DR |
488 | l = strlen(unescaped); |
489 | n = write(fd, unescaped, l); | |
d4e9eb91 | 490 | |
d4e9eb91 DR |
491 | if (n < 0 || (size_t) n < l) { |
492 | log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write"); | |
493 | close_nointr_nofail(fd); | |
494 | return n < 0 ? n : -EIO; | |
495 | } | |
496 | } | |
497 | ||
3612fbc1 DR |
498 | close_nointr_nofail(fd); |
499 | ||
d4e9eb91 DR |
500 | if (stat(path, &st) < 0) { |
501 | log_error("stat(%s) failed: %m", path); | |
502 | return -errno; | |
503 | } | |
504 | ||
505 | if (!S_ISREG(st.st_mode)) { | |
506 | log_error("%s is not a file.", path); | |
507 | return -EEXIST; | |
508 | } | |
509 | ||
510 | r = item_set_perms(i, path); | |
511 | if (r < 0) | |
512 | return r; | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
062e01bb | 517 | static int recursive_relabel_children(Item *i, const char *path) { |
19fbec19 | 518 | DIR _cleanup_closedir_ *d; |
a8d88783 MS |
519 | int ret = 0; |
520 | ||
521 | /* This returns the first error we run into, but nevertheless | |
522 | * tries to go on */ | |
523 | ||
524 | d = opendir(path); | |
525 | if (!d) | |
526 | return errno == ENOENT ? 0 : -errno; | |
527 | ||
528 | for (;;) { | |
7d5e9c0f LP |
529 | struct dirent *de; |
530 | union dirent_storage buf; | |
a8d88783 MS |
531 | bool is_dir; |
532 | int r; | |
19fbec19 | 533 | char _cleanup_free_ *entry_path = NULL; |
a8d88783 | 534 | |
7d5e9c0f | 535 | r = readdir_r(d, &buf.de, &de); |
a8d88783 MS |
536 | if (r != 0) { |
537 | if (ret == 0) | |
538 | ret = -r; | |
539 | break; | |
540 | } | |
541 | ||
542 | if (!de) | |
543 | break; | |
544 | ||
545 | if (streq(de->d_name, ".") || streq(de->d_name, "..")) | |
546 | continue; | |
547 | ||
548 | if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) { | |
549 | if (ret == 0) | |
550 | ret = -ENOMEM; | |
551 | continue; | |
552 | } | |
553 | ||
554 | if (de->d_type == DT_UNKNOWN) { | |
555 | struct stat st; | |
556 | ||
557 | if (lstat(entry_path, &st) < 0) { | |
558 | if (ret == 0 && errno != ENOENT) | |
559 | ret = -errno; | |
a8d88783 MS |
560 | continue; |
561 | } | |
562 | ||
563 | is_dir = S_ISDIR(st.st_mode); | |
564 | ||
565 | } else | |
566 | is_dir = de->d_type == DT_DIR; | |
567 | ||
062e01bb | 568 | r = item_set_perms(i, entry_path); |
a8d88783 MS |
569 | if (r < 0) { |
570 | if (ret == 0 && r != -ENOENT) | |
571 | ret = r; | |
a8d88783 MS |
572 | continue; |
573 | } | |
574 | ||
575 | if (is_dir) { | |
062e01bb | 576 | r = recursive_relabel_children(i, entry_path); |
a8d88783 MS |
577 | if (r < 0 && ret == 0) |
578 | ret = r; | |
579 | } | |
a8d88783 MS |
580 | } |
581 | ||
a8d88783 MS |
582 | return ret; |
583 | } | |
584 | ||
585 | static int recursive_relabel(Item *i, const char *path) { | |
586 | int r; | |
587 | struct stat st; | |
588 | ||
062e01bb | 589 | r = item_set_perms(i, path); |
a8d88783 MS |
590 | if (r < 0) |
591 | return r; | |
592 | ||
593 | if (lstat(path, &st) < 0) | |
594 | return -errno; | |
595 | ||
596 | if (S_ISDIR(st.st_mode)) | |
062e01bb | 597 | r = recursive_relabel_children(i, path); |
a8d88783 MS |
598 | |
599 | return r; | |
600 | } | |
601 | ||
99e68c0b MS |
602 | static int glob_item(Item *i, int (*action)(Item *, const char *)) { |
603 | int r = 0, k; | |
b92bea5d | 604 | glob_t g = {}; |
99e68c0b MS |
605 | char **fn; |
606 | ||
99e68c0b MS |
607 | errno = 0; |
608 | if ((k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g)) != 0) { | |
609 | ||
610 | if (k != GLOB_NOMATCH) { | |
8333c77e | 611 | if (errno > 0) |
99e68c0b MS |
612 | errno = EIO; |
613 | ||
614 | log_error("glob(%s) failed: %m", i->path); | |
615 | return -errno; | |
616 | } | |
617 | } | |
618 | ||
619 | STRV_FOREACH(fn, g.gl_pathv) | |
620 | if ((k = action(i, *fn)) < 0) | |
621 | r = k; | |
622 | ||
623 | globfree(&g); | |
624 | return r; | |
625 | } | |
626 | ||
3b63d2d3 | 627 | static int create_item(Item *i) { |
e9a5ef7c | 628 | int r, e; |
3b63d2d3 | 629 | struct stat st; |
5008d581 | 630 | |
3b63d2d3 | 631 | assert(i); |
5008d581 | 632 | |
3b63d2d3 LP |
633 | switch (i->type) { |
634 | ||
635 | case IGNORE_PATH: | |
78a92a5a | 636 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
637 | case REMOVE_PATH: |
638 | case RECURSIVE_REMOVE_PATH: | |
639 | return 0; | |
5008d581 | 640 | |
3b63d2d3 | 641 | case CREATE_FILE: |
31ed59c5 | 642 | case TRUNCATE_FILE: |
1845fdd9 DR |
643 | r = write_one_file(i, i->path); |
644 | if (r < 0) | |
645 | return r; | |
646 | break; | |
d4e9eb91 DR |
647 | case WRITE_FILE: |
648 | r = glob_item(i, write_one_file); | |
f05bc3f7 MS |
649 | if (r < 0) |
650 | return r; | |
5008d581 | 651 | |
3b63d2d3 LP |
652 | break; |
653 | ||
654 | case TRUNCATE_DIRECTORY: | |
655 | case CREATE_DIRECTORY: | |
5008d581 | 656 | |
5c0d398d LP |
657 | RUN_WITH_UMASK(0000) { |
658 | mkdir_parents_label(i->path, 0755); | |
659 | r = mkdir(i->path, i->mode); | |
660 | } | |
5008d581 LP |
661 | |
662 | if (r < 0 && errno != EEXIST) { | |
3b63d2d3 | 663 | log_error("Failed to create directory %s: %m", i->path); |
f05bc3f7 | 664 | return -errno; |
5008d581 LP |
665 | } |
666 | ||
3b63d2d3 LP |
667 | if (stat(i->path, &st) < 0) { |
668 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 669 | return -errno; |
5008d581 LP |
670 | } |
671 | ||
672 | if (!S_ISDIR(st.st_mode)) { | |
3b63d2d3 | 673 | log_error("%s is not a directory.", i->path); |
f05bc3f7 | 674 | return -EEXIST; |
5008d581 LP |
675 | } |
676 | ||
062e01bb | 677 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
678 | if (r < 0) |
679 | return r; | |
3b63d2d3 LP |
680 | |
681 | break; | |
ee17ee7c LP |
682 | |
683 | case CREATE_FIFO: | |
684 | ||
5c0d398d LP |
685 | RUN_WITH_UMASK(0000) { |
686 | r = mkfifo(i->path, i->mode); | |
687 | } | |
ee17ee7c LP |
688 | |
689 | if (r < 0 && errno != EEXIST) { | |
690 | log_error("Failed to create fifo %s: %m", i->path); | |
f05bc3f7 | 691 | return -errno; |
ee17ee7c LP |
692 | } |
693 | ||
694 | if (stat(i->path, &st) < 0) { | |
695 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 696 | return -errno; |
ee17ee7c LP |
697 | } |
698 | ||
699 | if (!S_ISFIFO(st.st_mode)) { | |
700 | log_error("%s is not a fifo.", i->path); | |
f05bc3f7 | 701 | return -EEXIST; |
ee17ee7c LP |
702 | } |
703 | ||
062e01bb | 704 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
705 | if (r < 0) |
706 | return r; | |
ee17ee7c LP |
707 | |
708 | break; | |
a8d88783 | 709 | |
468d726b LP |
710 | case CREATE_SYMLINK: { |
711 | char *x; | |
712 | ||
e9a5ef7c | 713 | label_context_set(i->path, S_IFLNK); |
468d726b | 714 | r = symlink(i->argument, i->path); |
e9a5ef7c KS |
715 | e = errno; |
716 | label_context_clear(); | |
717 | errno = e; | |
718 | ||
468d726b LP |
719 | if (r < 0 && errno != EEXIST) { |
720 | log_error("symlink(%s, %s) failed: %m", i->argument, i->path); | |
721 | return -errno; | |
722 | } | |
723 | ||
724 | r = readlink_malloc(i->path, &x); | |
725 | if (r < 0) { | |
726 | log_error("readlink(%s) failed: %s", i->path, strerror(-r)); | |
727 | return -errno; | |
728 | } | |
729 | ||
730 | if (!streq(i->argument, x)) { | |
731 | free(x); | |
732 | log_error("%s is not the right symlinks.", i->path); | |
733 | return -EEXIST; | |
734 | } | |
735 | ||
736 | free(x); | |
737 | break; | |
738 | } | |
739 | ||
740 | case CREATE_BLOCK_DEVICE: | |
741 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
742 | mode_t file_type; |
743 | ||
744 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
745 | /* In a container we lack CAP_MKNOD. We | |
746 | shouldnt attempt to create the device node in | |
747 | that case to avoid noise, and we don't support | |
748 | virtualized devices in containers anyway. */ | |
749 | ||
750 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
751 | return 0; | |
752 | } | |
753 | ||
754 | file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR); | |
468d726b | 755 | |
5c0d398d LP |
756 | RUN_WITH_UMASK(0000) { |
757 | label_context_set(i->path, file_type); | |
758 | r = mknod(i->path, i->mode | file_type, i->major_minor); | |
759 | e = errno; | |
760 | label_context_clear(); | |
761 | errno = e; | |
762 | } | |
468d726b LP |
763 | |
764 | if (r < 0 && errno != EEXIST) { | |
765 | log_error("Failed to create device node %s: %m", i->path); | |
766 | return -errno; | |
767 | } | |
768 | ||
769 | if (stat(i->path, &st) < 0) { | |
770 | log_error("stat(%s) failed: %m", i->path); | |
771 | return -errno; | |
772 | } | |
773 | ||
e7aee759 | 774 | if ((st.st_mode & S_IFMT) != file_type) { |
468d726b LP |
775 | log_error("%s is not a device node.", i->path); |
776 | return -EEXIST; | |
777 | } | |
778 | ||
779 | r = item_set_perms(i, i->path); | |
780 | if (r < 0) | |
781 | return r; | |
782 | ||
783 | break; | |
784 | } | |
785 | ||
777b87e7 MS |
786 | case RELABEL_PATH: |
787 | ||
788 | r = glob_item(i, item_set_perms); | |
789 | if (r < 0) | |
790 | return 0; | |
791 | break; | |
792 | ||
a8d88783 MS |
793 | case RECURSIVE_RELABEL_PATH: |
794 | ||
795 | r = glob_item(i, recursive_relabel); | |
796 | if (r < 0) | |
797 | return r; | |
3b63d2d3 LP |
798 | } |
799 | ||
3b63d2d3 LP |
800 | log_debug("%s created successfully.", i->path); |
801 | ||
f05bc3f7 | 802 | return 0; |
3b63d2d3 LP |
803 | } |
804 | ||
a0896123 | 805 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
806 | int r; |
807 | ||
808 | assert(i); | |
809 | ||
810 | switch (i->type) { | |
811 | ||
812 | case CREATE_FILE: | |
813 | case TRUNCATE_FILE: | |
814 | case CREATE_DIRECTORY: | |
ee17ee7c | 815 | case CREATE_FIFO: |
468d726b LP |
816 | case CREATE_SYMLINK: |
817 | case CREATE_BLOCK_DEVICE: | |
818 | case CREATE_CHAR_DEVICE: | |
3b63d2d3 | 819 | case IGNORE_PATH: |
78a92a5a | 820 | case IGNORE_DIRECTORY_PATH: |
777b87e7 | 821 | case RELABEL_PATH: |
a8d88783 | 822 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 823 | case WRITE_FILE: |
3b63d2d3 LP |
824 | break; |
825 | ||
826 | case REMOVE_PATH: | |
b8bb3e8f LP |
827 | if (remove(instance) < 0 && errno != ENOENT) { |
828 | log_error("remove(%s): %m", instance); | |
3b63d2d3 | 829 | return -errno; |
5008d581 | 830 | } |
3b63d2d3 LP |
831 | |
832 | break; | |
833 | ||
834 | case TRUNCATE_DIRECTORY: | |
835 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
836 | /* FIXME: we probably should use dir_cleanup() here |
837 | * instead of rm_rf() so that 'x' is honoured. */ | |
f56d5db9 | 838 | r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false); |
468d726b | 839 | if (r < 0 && r != -ENOENT) { |
b8bb3e8f | 840 | log_error("rm_rf(%s): %s", instance, strerror(-r)); |
3b63d2d3 LP |
841 | return r; |
842 | } | |
843 | ||
844 | break; | |
845 | } | |
846 | ||
847 | return 0; | |
848 | } | |
849 | ||
a0896123 | 850 | static int remove_item(Item *i) { |
99e68c0b MS |
851 | int r = 0; |
852 | ||
b8bb3e8f LP |
853 | assert(i); |
854 | ||
855 | switch (i->type) { | |
856 | ||
857 | case CREATE_FILE: | |
858 | case TRUNCATE_FILE: | |
859 | case CREATE_DIRECTORY: | |
ee17ee7c | 860 | case CREATE_FIFO: |
468d726b LP |
861 | case CREATE_SYMLINK: |
862 | case CREATE_CHAR_DEVICE: | |
863 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 864 | case IGNORE_PATH: |
78a92a5a | 865 | case IGNORE_DIRECTORY_PATH: |
777b87e7 | 866 | case RELABEL_PATH: |
a8d88783 | 867 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 868 | case WRITE_FILE: |
b8bb3e8f LP |
869 | break; |
870 | ||
871 | case REMOVE_PATH: | |
872 | case TRUNCATE_DIRECTORY: | |
99e68c0b MS |
873 | case RECURSIVE_REMOVE_PATH: |
874 | r = glob_item(i, remove_item_instance); | |
875 | break; | |
b8bb3e8f LP |
876 | } |
877 | ||
99e68c0b | 878 | return r; |
b8bb3e8f LP |
879 | } |
880 | ||
78a92a5a | 881 | static int clean_item_instance(Item *i, const char* instance) { |
19fbec19 | 882 | DIR _cleanup_closedir_ *d = NULL; |
78a92a5a MS |
883 | struct stat s, ps; |
884 | bool mountpoint; | |
885 | int r; | |
886 | usec_t cutoff, n; | |
887 | ||
888 | assert(i); | |
889 | ||
890 | if (!i->age_set) | |
891 | return 0; | |
892 | ||
893 | n = now(CLOCK_REALTIME); | |
894 | if (n < i->age) | |
895 | return 0; | |
896 | ||
897 | cutoff = n - i->age; | |
898 | ||
899 | d = opendir(instance); | |
900 | if (!d) { | |
901 | if (errno == ENOENT || errno == ENOTDIR) | |
902 | return 0; | |
903 | ||
904 | log_error("Failed to open directory %s: %m", i->path); | |
905 | return -errno; | |
906 | } | |
907 | ||
908 | if (fstat(dirfd(d), &s) < 0) { | |
909 | log_error("stat(%s) failed: %m", i->path); | |
19fbec19 | 910 | return -errno; |
78a92a5a MS |
911 | } |
912 | ||
913 | if (!S_ISDIR(s.st_mode)) { | |
914 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 915 | return -ENOTDIR; |
78a92a5a MS |
916 | } |
917 | ||
918 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) { | |
919 | log_error("stat(%s/..) failed: %m", i->path); | |
19fbec19 | 920 | return -errno; |
78a92a5a MS |
921 | } |
922 | ||
923 | mountpoint = s.st_dev != ps.st_dev || | |
924 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
925 | ||
19fbec19 ZJS |
926 | r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, |
927 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
928 | return r; |
929 | } | |
930 | ||
931 | static int clean_item(Item *i) { | |
932 | int r = 0; | |
933 | ||
934 | assert(i); | |
935 | ||
936 | switch (i->type) { | |
937 | case CREATE_DIRECTORY: | |
938 | case TRUNCATE_DIRECTORY: | |
939 | case IGNORE_PATH: | |
940 | clean_item_instance(i, i->path); | |
941 | break; | |
942 | case IGNORE_DIRECTORY_PATH: | |
943 | r = glob_item(i, clean_item_instance); | |
944 | break; | |
945 | default: | |
946 | break; | |
947 | } | |
948 | ||
949 | return r; | |
950 | } | |
951 | ||
3b63d2d3 LP |
952 | static int process_item(Item *i) { |
953 | int r, q, p; | |
954 | ||
955 | assert(i); | |
956 | ||
957 | r = arg_create ? create_item(i) : 0; | |
a0896123 | 958 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
959 | p = arg_clean ? clean_item(i) : 0; |
960 | ||
961 | if (r < 0) | |
962 | return r; | |
963 | ||
964 | if (q < 0) | |
965 | return q; | |
966 | ||
967 | return p; | |
968 | } | |
969 | ||
970 | static void item_free(Item *i) { | |
971 | assert(i); | |
972 | ||
973 | free(i->path); | |
468d726b | 974 | free(i->argument); |
3b63d2d3 LP |
975 | free(i); |
976 | } | |
977 | ||
bfe95f35 LP |
978 | static bool item_equal(Item *a, Item *b) { |
979 | assert(a); | |
980 | assert(b); | |
981 | ||
982 | if (!streq_ptr(a->path, b->path)) | |
983 | return false; | |
984 | ||
985 | if (a->type != b->type) | |
986 | return false; | |
987 | ||
988 | if (a->uid_set != b->uid_set || | |
989 | (a->uid_set && a->uid != b->uid)) | |
990 | return false; | |
991 | ||
992 | if (a->gid_set != b->gid_set || | |
993 | (a->gid_set && a->gid != b->gid)) | |
994 | return false; | |
995 | ||
996 | if (a->mode_set != b->mode_set || | |
997 | (a->mode_set && a->mode != b->mode)) | |
998 | return false; | |
999 | ||
1000 | if (a->age_set != b->age_set || | |
1001 | (a->age_set && a->age != b->age)) | |
1002 | return false; | |
1003 | ||
31ed59c5 LP |
1004 | if ((a->type == CREATE_FILE || |
1005 | a->type == TRUNCATE_FILE || | |
1006 | a->type == WRITE_FILE || | |
1007 | a->type == CREATE_SYMLINK) && | |
1733ca54 | 1008 | !streq_ptr(a->argument, b->argument)) |
468d726b LP |
1009 | return false; |
1010 | ||
1011 | if ((a->type == CREATE_CHAR_DEVICE || | |
1012 | a->type == CREATE_BLOCK_DEVICE) && | |
1013 | a->major_minor != b->major_minor) | |
1014 | return false; | |
1015 | ||
bfe95f35 LP |
1016 | return true; |
1017 | } | |
1018 | ||
fba6e687 | 1019 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
7f2c1f4d ZJS |
1020 | Item _cleanup_free_ *i = NULL; |
1021 | Item *existing; | |
19fbec19 ZJS |
1022 | char _cleanup_free_ |
1023 | *mode = NULL, *user = NULL, *group = NULL, *age = NULL; | |
66ccd038 | 1024 | char type; |
bfe95f35 | 1025 | Hashmap *h; |
31ed59c5 | 1026 | int r, n = -1; |
3b63d2d3 LP |
1027 | |
1028 | assert(fname); | |
1029 | assert(line >= 1); | |
1030 | assert(buffer); | |
1031 | ||
468d726b | 1032 | i = new0(Item, 1); |
0d0f0c50 SL |
1033 | if (!i) |
1034 | return log_oom(); | |
3b63d2d3 | 1035 | |
19fbec19 ZJS |
1036 | r = sscanf(buffer, |
1037 | "%c %ms %ms %ms %ms %ms %n", | |
66ccd038 | 1038 | &type, |
bd40a2d8 LP |
1039 | &i->path, |
1040 | &mode, | |
1041 | &user, | |
1042 | &group, | |
468d726b | 1043 | &age, |
19fbec19 ZJS |
1044 | &n); |
1045 | if (r < 2) { | |
3b63d2d3 | 1046 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1047 | return -EIO; |
5008d581 LP |
1048 | } |
1049 | ||
31ed59c5 LP |
1050 | if (n >= 0) { |
1051 | n += strspn(buffer+n, WHITESPACE); | |
1052 | if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) { | |
1053 | i->argument = unquote(buffer+n, "\""); | |
0d0f0c50 SL |
1054 | if (!i->argument) |
1055 | return log_oom(); | |
31ed59c5 LP |
1056 | } |
1057 | } | |
1058 | ||
777b87e7 | 1059 | switch(type) { |
468d726b | 1060 | |
777b87e7 MS |
1061 | case CREATE_FILE: |
1062 | case TRUNCATE_FILE: | |
1063 | case CREATE_DIRECTORY: | |
1064 | case TRUNCATE_DIRECTORY: | |
1065 | case CREATE_FIFO: | |
1066 | case IGNORE_PATH: | |
78a92a5a | 1067 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1068 | case REMOVE_PATH: |
1069 | case RECURSIVE_REMOVE_PATH: | |
1070 | case RELABEL_PATH: | |
1071 | case RECURSIVE_RELABEL_PATH: | |
1072 | break; | |
468d726b LP |
1073 | |
1074 | case CREATE_SYMLINK: | |
1075 | if (!i->argument) { | |
1076 | log_error("[%s:%u] Symlink file requires argument.", fname, line); | |
7f2c1f4d | 1077 | return -EBADMSG; |
468d726b LP |
1078 | } |
1079 | break; | |
1080 | ||
31ed59c5 LP |
1081 | case WRITE_FILE: |
1082 | if (!i->argument) { | |
1083 | log_error("[%s:%u] Write file requires argument.", fname, line); | |
7f2c1f4d | 1084 | return -EBADMSG; |
31ed59c5 LP |
1085 | } |
1086 | break; | |
1087 | ||
468d726b LP |
1088 | case CREATE_CHAR_DEVICE: |
1089 | case CREATE_BLOCK_DEVICE: { | |
1090 | unsigned major, minor; | |
1091 | ||
1092 | if (!i->argument) { | |
1093 | log_error("[%s:%u] Device file requires argument.", fname, line); | |
7f2c1f4d | 1094 | return -EBADMSG; |
468d726b LP |
1095 | } |
1096 | ||
1097 | if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) { | |
1098 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument); | |
7f2c1f4d | 1099 | return -EBADMSG; |
468d726b LP |
1100 | } |
1101 | ||
1102 | i->major_minor = makedev(major, minor); | |
1103 | break; | |
1104 | } | |
1105 | ||
777b87e7 | 1106 | default: |
a8d88783 | 1107 | log_error("[%s:%u] Unknown file type '%c'.", fname, line, type); |
7f2c1f4d | 1108 | return -EBADMSG; |
3b63d2d3 | 1109 | } |
468d726b | 1110 | |
a8d88783 | 1111 | i->type = type; |
3b63d2d3 LP |
1112 | |
1113 | if (!path_is_absolute(i->path)) { | |
1114 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path); | |
7f2c1f4d | 1115 | return -EBADMSG; |
3b63d2d3 LP |
1116 | } |
1117 | ||
1118 | path_kill_slashes(i->path); | |
1119 | ||
7f2c1f4d ZJS |
1120 | if (arg_prefix && !path_startswith(i->path, arg_prefix)) |
1121 | return 0; | |
5008d581 | 1122 | |
3b63d2d3 | 1123 | if (user && !streq(user, "-")) { |
4b67834e LP |
1124 | const char *u = user; |
1125 | ||
d05c5031 | 1126 | r = get_user_creds(&u, &i->uid, NULL, NULL, NULL); |
4b67834e | 1127 | if (r < 0) { |
3b63d2d3 | 1128 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1129 | return r; |
3b63d2d3 LP |
1130 | } |
1131 | ||
1132 | i->uid_set = true; | |
1133 | } | |
1134 | ||
1135 | if (group && !streq(group, "-")) { | |
4b67834e LP |
1136 | const char *g = group; |
1137 | ||
1138 | r = get_group_creds(&g, &i->gid); | |
1139 | if (r < 0) { | |
3b63d2d3 | 1140 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1141 | return r; |
3b63d2d3 LP |
1142 | } |
1143 | ||
1144 | i->gid_set = true; | |
1145 | } | |
1146 | ||
1147 | if (mode && !streq(mode, "-")) { | |
1148 | unsigned m; | |
1149 | ||
1150 | if (sscanf(mode, "%o", &m) != 1) { | |
1151 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); | |
7f2c1f4d | 1152 | return -ENOENT; |
3b63d2d3 LP |
1153 | } |
1154 | ||
1155 | i->mode = m; | |
1156 | i->mode_set = true; | |
1157 | } else | |
468d726b LP |
1158 | i->mode = |
1159 | i->type == CREATE_DIRECTORY || | |
1160 | i->type == TRUNCATE_DIRECTORY ? 0755 : 0644; | |
3b63d2d3 LP |
1161 | |
1162 | if (age && !streq(age, "-")) { | |
24f3a374 LP |
1163 | const char *a = age; |
1164 | ||
1165 | if (*a == '~') { | |
1166 | i->keep_first_level = true; | |
1167 | a++; | |
1168 | } | |
1169 | ||
7f602784 | 1170 | if (parse_sec(a, &i->age) < 0) { |
3b63d2d3 | 1171 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 1172 | return -EBADMSG; |
3b63d2d3 LP |
1173 | } |
1174 | ||
1175 | i->age_set = true; | |
1176 | } | |
1177 | ||
bfe95f35 LP |
1178 | h = needs_glob(i->type) ? globs : items; |
1179 | ||
468d726b LP |
1180 | existing = hashmap_get(h, i->path); |
1181 | if (existing) { | |
bfe95f35 LP |
1182 | |
1183 | /* Two identical items are fine */ | |
1184 | if (!item_equal(existing, i)) | |
022707d9 | 1185 | log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path); |
022707d9 | 1186 | |
7f2c1f4d | 1187 | return 0; |
bfe95f35 LP |
1188 | } |
1189 | ||
468d726b LP |
1190 | r = hashmap_put(h, i->path, i); |
1191 | if (r < 0) { | |
3b63d2d3 | 1192 | log_error("Failed to insert item %s: %s", i->path, strerror(-r)); |
7f2c1f4d | 1193 | return r; |
3b63d2d3 LP |
1194 | } |
1195 | ||
7f2c1f4d | 1196 | i = NULL; /* avoid cleanup */ |
5008d581 | 1197 | |
7f2c1f4d | 1198 | return 0; |
5008d581 LP |
1199 | } |
1200 | ||
3b63d2d3 LP |
1201 | static int help(void) { |
1202 | ||
522d4a49 LP |
1203 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
1204 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
3b63d2d3 LP |
1205 | " -h --help Show this help\n" |
1206 | " --create Create marked files/directories\n" | |
1207 | " --clean Clean up marked directories\n" | |
fba6e687 | 1208 | " --remove Remove marked files/directories\n" |
522d4a49 | 1209 | " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n", |
3b63d2d3 LP |
1210 | program_invocation_short_name); |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | static int parse_argv(int argc, char *argv[]) { | |
1216 | ||
1217 | enum { | |
1218 | ARG_CREATE, | |
1219 | ARG_CLEAN, | |
fba6e687 LP |
1220 | ARG_REMOVE, |
1221 | ARG_PREFIX | |
3b63d2d3 LP |
1222 | }; |
1223 | ||
1224 | static const struct option options[] = { | |
1225 | { "help", no_argument, NULL, 'h' }, | |
1226 | { "create", no_argument, NULL, ARG_CREATE }, | |
1227 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
1228 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
fba6e687 | 1229 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
3b63d2d3 LP |
1230 | { NULL, 0, NULL, 0 } |
1231 | }; | |
1232 | ||
1233 | int c; | |
1234 | ||
1235 | assert(argc >= 0); | |
1236 | assert(argv); | |
1237 | ||
1238 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) { | |
1239 | ||
1240 | switch (c) { | |
1241 | ||
1242 | case 'h': | |
1243 | help(); | |
1244 | return 0; | |
1245 | ||
1246 | case ARG_CREATE: | |
1247 | arg_create = true; | |
1248 | break; | |
1249 | ||
1250 | case ARG_CLEAN: | |
1251 | arg_clean = true; | |
1252 | break; | |
1253 | ||
1254 | case ARG_REMOVE: | |
1255 | arg_remove = true; | |
1256 | break; | |
1257 | ||
fba6e687 LP |
1258 | case ARG_PREFIX: |
1259 | arg_prefix = optarg; | |
1260 | break; | |
1261 | ||
3b63d2d3 LP |
1262 | case '?': |
1263 | return -EINVAL; | |
1264 | ||
1265 | default: | |
1266 | log_error("Unknown option code %c", c); | |
1267 | return -EINVAL; | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 1272 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
1273 | return -EINVAL; |
1274 | } | |
1275 | ||
1276 | return 1; | |
1277 | } | |
1278 | ||
fba6e687 LP |
1279 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1280 | FILE *f; | |
1281 | unsigned v = 0; | |
fabe5c0e | 1282 | int r; |
78a92a5a MS |
1283 | Iterator iterator; |
1284 | Item *i; | |
fba6e687 LP |
1285 | |
1286 | assert(fn); | |
1287 | ||
fabe5c0e LP |
1288 | r = search_and_fopen_nulstr(fn, "re", conf_file_dirs, &f); |
1289 | if (r < 0) { | |
1290 | if (ignore_enoent && r == -ENOENT) | |
fba6e687 LP |
1291 | return 0; |
1292 | ||
fabe5c0e LP |
1293 | log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r)); |
1294 | return r; | |
fba6e687 LP |
1295 | } |
1296 | ||
772f8371 | 1297 | log_debug("apply: %s\n", fn); |
fba6e687 LP |
1298 | for (;;) { |
1299 | char line[LINE_MAX], *l; | |
1300 | int k; | |
1301 | ||
1302 | if (!(fgets(line, sizeof(line), f))) | |
1303 | break; | |
1304 | ||
1305 | v++; | |
1306 | ||
1307 | l = strstrip(line); | |
1308 | if (*l == '#' || *l == 0) | |
1309 | continue; | |
1310 | ||
1311 | if ((k = parse_line(fn, v, l)) < 0) | |
1312 | if (r == 0) | |
1313 | r = k; | |
1314 | } | |
1315 | ||
78a92a5a MS |
1316 | /* we have to determine age parameter for each entry of type X */ |
1317 | HASHMAP_FOREACH(i, globs, iterator) { | |
1318 | Iterator iter; | |
1319 | Item *j, *candidate_item = NULL; | |
1320 | ||
1321 | if (i->type != IGNORE_DIRECTORY_PATH) | |
1322 | continue; | |
1323 | ||
1324 | HASHMAP_FOREACH(j, items, iter) { | |
1325 | if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY) | |
1326 | continue; | |
1327 | ||
1328 | if (path_equal(j->path, i->path)) { | |
1329 | candidate_item = j; | |
1330 | break; | |
1331 | } | |
1332 | ||
1333 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
1334 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
1335 | candidate_item = j; | |
1336 | } | |
1337 | ||
1338 | if (candidate_item) { | |
1339 | i->age = candidate_item->age; | |
1340 | i->age_set = true; | |
1341 | } | |
1342 | } | |
1343 | ||
fba6e687 LP |
1344 | if (ferror(f)) { |
1345 | log_error("Failed to read from file %s: %m", fn); | |
1346 | if (r == 0) | |
1347 | r = -EIO; | |
1348 | } | |
1349 | ||
1350 | fclose(f); | |
1351 | ||
1352 | return r; | |
1353 | } | |
1354 | ||
5008d581 | 1355 | int main(int argc, char *argv[]) { |
fabe5c0e | 1356 | int r, k; |
3b63d2d3 LP |
1357 | Item *i; |
1358 | Iterator iterator; | |
1359 | ||
fdcad0c2 LP |
1360 | r = parse_argv(argc, argv); |
1361 | if (r <= 0) | |
3b63d2d3 | 1362 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1363 | |
eb0ca9eb | 1364 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
1365 | log_parse_environment(); |
1366 | log_open(); | |
1367 | ||
4c12626c LP |
1368 | umask(0022); |
1369 | ||
e9a5ef7c | 1370 | label_init(NULL); |
5008d581 | 1371 | |
b8bb3e8f LP |
1372 | items = hashmap_new(string_hash_func, string_compare_func); |
1373 | globs = hashmap_new(string_hash_func, string_compare_func); | |
1374 | ||
1375 | if (!items || !globs) { | |
fabe5c0e | 1376 | r = log_oom(); |
3b63d2d3 LP |
1377 | goto finish; |
1378 | } | |
1379 | ||
fabe5c0e | 1380 | r = 0; |
5008d581 | 1381 | |
fba6e687 LP |
1382 | if (optind < argc) { |
1383 | int j; | |
5008d581 | 1384 | |
9125670f | 1385 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
1386 | k = read_config_file(argv[j], false); |
1387 | if (k < 0 && r == 0) | |
1388 | r = k; | |
9125670f | 1389 | } |
5008d581 | 1390 | |
fba6e687 | 1391 | } else { |
fabe5c0e LP |
1392 | _cleanup_strv_free_ char **files = NULL; |
1393 | char **f; | |
5008d581 | 1394 | |
fabe5c0e | 1395 | r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); |
44143309 | 1396 | if (r < 0) { |
44143309 KS |
1397 | log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r)); |
1398 | goto finish; | |
1399 | } | |
3b63d2d3 | 1400 | |
772f8371 | 1401 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
1402 | k = read_config_file(*f, true); |
1403 | if (k < 0 && r == 0) | |
1404 | r = k; | |
5008d581 | 1405 | } |
772f8371 | 1406 | } |
5008d581 | 1407 | |
b8bb3e8f | 1408 | HASHMAP_FOREACH(i, globs, iterator) |
21bdae12 | 1409 | process_item(i); |
b8bb3e8f | 1410 | |
3b63d2d3 | 1411 | HASHMAP_FOREACH(i, items, iterator) |
21bdae12 | 1412 | process_item(i); |
3b63d2d3 | 1413 | |
5008d581 | 1414 | finish: |
3b63d2d3 LP |
1415 | while ((i = hashmap_steal_first(items))) |
1416 | item_free(i); | |
1417 | ||
17b90525 LP |
1418 | while ((i = hashmap_steal_first(globs))) |
1419 | item_free(i); | |
1420 | ||
3b63d2d3 | 1421 | hashmap_free(items); |
b8bb3e8f | 1422 | hashmap_free(globs); |
5008d581 | 1423 | |
17b90525 LP |
1424 | set_free_free(unix_sockets); |
1425 | ||
29003cff LP |
1426 | label_finish(); |
1427 | ||
fabe5c0e | 1428 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1429 | } |