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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" |
1731e34a | 54 | #include "specifier.h" |
5008d581 | 55 | |
01000479 | 56 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 57 | * them in the file system. This is intended to be used to create |
db019b8d KS |
58 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
59 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 60 | |
66ccd038 | 61 | typedef enum ItemType { |
b8bb3e8f | 62 | /* These ones take file names */ |
3b63d2d3 LP |
63 | CREATE_FILE = 'f', |
64 | TRUNCATE_FILE = 'F', | |
31ed59c5 | 65 | WRITE_FILE = 'w', |
3b63d2d3 LP |
66 | CREATE_DIRECTORY = 'd', |
67 | TRUNCATE_DIRECTORY = 'D', | |
ee17ee7c | 68 | CREATE_FIFO = 'p', |
468d726b LP |
69 | CREATE_SYMLINK = 'L', |
70 | CREATE_CHAR_DEVICE = 'c', | |
71 | CREATE_BLOCK_DEVICE = 'b', | |
b8bb3e8f LP |
72 | |
73 | /* These ones take globs */ | |
3b63d2d3 | 74 | IGNORE_PATH = 'x', |
78a92a5a | 75 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 76 | REMOVE_PATH = 'r', |
a8d88783 | 77 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 78 | RELABEL_PATH = 'z', |
a8d88783 | 79 | RECURSIVE_RELABEL_PATH = 'Z' |
66ccd038 | 80 | } ItemType; |
3b63d2d3 LP |
81 | |
82 | typedef struct Item { | |
66ccd038 | 83 | ItemType type; |
3b63d2d3 LP |
84 | |
85 | char *path; | |
468d726b | 86 | char *argument; |
5008d581 LP |
87 | uid_t uid; |
88 | gid_t gid; | |
3b63d2d3 LP |
89 | mode_t mode; |
90 | usec_t age; | |
91 | ||
468d726b LP |
92 | dev_t major_minor; |
93 | ||
3b63d2d3 LP |
94 | bool uid_set:1; |
95 | bool gid_set:1; | |
96 | bool mode_set:1; | |
97 | bool age_set:1; | |
24f3a374 LP |
98 | |
99 | bool keep_first_level:1; | |
3b63d2d3 LP |
100 | } Item; |
101 | ||
b8bb3e8f | 102 | static Hashmap *items = NULL, *globs = NULL; |
17b90525 | 103 | static Set *unix_sockets = NULL; |
3b63d2d3 LP |
104 | |
105 | static bool arg_create = false; | |
106 | static bool arg_clean = false; | |
107 | static bool arg_remove = false; | |
108 | ||
a2aced4a | 109 | static char **include_prefixes = NULL; |
5c795114 | 110 | static char **exclude_prefixes = NULL; |
fba6e687 | 111 | |
fabe5c0e LP |
112 | static const char conf_file_dirs[] = |
113 | "/etc/tmpfiles.d\0" | |
114 | "/run/tmpfiles.d\0" | |
115 | "/usr/local/lib/tmpfiles.d\0" | |
116 | "/usr/lib/tmpfiles.d\0" | |
3f2afb29 | 117 | #ifdef HAVE_SPLIT_USR |
fabe5c0e | 118 | "/lib/tmpfiles.d\0" |
3f2afb29 | 119 | #endif |
fabe5c0e | 120 | ; |
9125670f | 121 | |
3b63d2d3 LP |
122 | #define MAX_DEPTH 256 |
123 | ||
66ccd038 | 124 | static bool needs_glob(ItemType t) { |
78a92a5a | 125 | return t == IGNORE_PATH || t == IGNORE_DIRECTORY_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_PATH; |
b8bb3e8f LP |
126 | } |
127 | ||
128 | static struct Item* find_glob(Hashmap *h, const char *match) { | |
129 | Item *j; | |
130 | Iterator i; | |
131 | ||
132 | HASHMAP_FOREACH(j, h, i) | |
133 | if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
134 | return j; | |
135 | ||
136 | return NULL; | |
137 | } | |
138 | ||
17b90525 | 139 | static void load_unix_sockets(void) { |
7fd1b19b | 140 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
141 | char line[LINE_MAX]; |
142 | ||
143 | if (unix_sockets) | |
144 | return; | |
145 | ||
146 | /* We maintain a cache of the sockets we found in | |
147 | * /proc/net/unix to speed things up a little. */ | |
148 | ||
fdcad0c2 LP |
149 | unix_sockets = set_new(string_hash_func, string_compare_func); |
150 | if (!unix_sockets) | |
17b90525 LP |
151 | return; |
152 | ||
fdcad0c2 LP |
153 | f = fopen("/proc/net/unix", "re"); |
154 | if (!f) | |
17b90525 LP |
155 | return; |
156 | ||
fdcad0c2 LP |
157 | /* Skip header */ |
158 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
159 | goto fail; |
160 | ||
161 | for (;;) { | |
162 | char *p, *s; | |
163 | int k; | |
164 | ||
fdcad0c2 | 165 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
166 | break; |
167 | ||
168 | truncate_nl(line); | |
169 | ||
fdcad0c2 LP |
170 | p = strchr(line, ':'); |
171 | if (!p) | |
172 | continue; | |
173 | ||
174 | if (strlen(p) < 37) | |
17b90525 LP |
175 | continue; |
176 | ||
fdcad0c2 | 177 | p += 37; |
17b90525 | 178 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 179 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
180 | p += strspn(p, WHITESPACE); |
181 | ||
182 | if (*p != '/') | |
183 | continue; | |
184 | ||
fdcad0c2 LP |
185 | s = strdup(p); |
186 | if (!s) | |
17b90525 LP |
187 | goto fail; |
188 | ||
4ff21d85 LP |
189 | path_kill_slashes(s); |
190 | ||
ef42202a ZJS |
191 | k = set_consume(unix_sockets, s); |
192 | if (k < 0 && k != -EEXIST) | |
193 | goto fail; | |
17b90525 LP |
194 | } |
195 | ||
196 | return; | |
197 | ||
198 | fail: | |
199 | set_free_free(unix_sockets); | |
200 | unix_sockets = NULL; | |
17b90525 LP |
201 | } |
202 | ||
203 | static bool unix_socket_alive(const char *fn) { | |
204 | assert(fn); | |
205 | ||
206 | load_unix_sockets(); | |
207 | ||
208 | if (unix_sockets) | |
209 | return !!set_get(unix_sockets, (char*) fn); | |
210 | ||
211 | /* We don't know, so assume yes */ | |
212 | return true; | |
213 | } | |
214 | ||
99d680ac KS |
215 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
216 | struct file_handle *h; | |
217 | int mount_id_parent, mount_id; | |
218 | int r_p, r; | |
219 | ||
220 | h = alloca(MAX_HANDLE_SZ); | |
221 | ||
222 | h->handle_bytes = MAX_HANDLE_SZ; | |
223 | r_p = name_to_handle_at(dirfd(d), ".", h, &mount_id_parent, 0); | |
224 | if (r_p < 0) | |
225 | r_p = -errno; | |
226 | ||
227 | h->handle_bytes = MAX_HANDLE_SZ; | |
228 | r = name_to_handle_at(dirfd(d), subdir, h, &mount_id, 0); | |
229 | if (r < 0) | |
230 | r = -errno; | |
231 | ||
232 | /* got no handle; make no assumptions, return error */ | |
233 | if (r_p < 0 && r < 0) | |
234 | return r_p; | |
235 | ||
236 | /* got both handles; if they differ, it is a mount point */ | |
237 | if (r_p >= 0 && r >= 0) | |
238 | return mount_id_parent != mount_id; | |
239 | ||
240 | /* got only one handle; assume different mount points if one | |
241 | * of both queries was not supported by the filesystem */ | |
242 | if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP) | |
243 | return true; | |
244 | ||
245 | /* return error */ | |
246 | if (r_p < 0) | |
247 | return r_p; | |
248 | return r; | |
249 | } | |
250 | ||
3b63d2d3 | 251 | static int dir_cleanup( |
78a92a5a | 252 | Item *i, |
3b63d2d3 LP |
253 | const char *p, |
254 | DIR *d, | |
255 | const struct stat *ds, | |
256 | usec_t cutoff, | |
257 | dev_t rootdev, | |
258 | bool mountpoint, | |
24f3a374 LP |
259 | int maxdepth, |
260 | bool keep_this_level) | |
3b63d2d3 LP |
261 | { |
262 | struct dirent *dent; | |
263 | struct timespec times[2]; | |
264 | bool deleted = false; | |
3b63d2d3 LP |
265 | int r = 0; |
266 | ||
267 | while ((dent = readdir(d))) { | |
268 | struct stat s; | |
269 | usec_t age; | |
7fd1b19b | 270 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 LP |
271 | |
272 | if (streq(dent->d_name, ".") || | |
273 | streq(dent->d_name, "..")) | |
274 | continue; | |
5008d581 | 275 | |
3b63d2d3 | 276 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
5008d581 | 277 | |
3b63d2d3 LP |
278 | if (errno != ENOENT) { |
279 | log_error("stat(%s/%s) failed: %m", p, dent->d_name); | |
280 | r = -errno; | |
281 | } | |
282 | ||
283 | continue; | |
284 | } | |
285 | ||
286 | /* Stay on the same filesystem */ | |
287 | if (s.st_dev != rootdev) | |
288 | continue; | |
289 | ||
99d680ac KS |
290 | /* Try to detect bind mounts of the same filesystem instance; they |
291 | * do not differ in device major/minors. This type of query is not | |
292 | * supported on all kernels or filesystem types though. */ | |
293 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) | |
294 | continue; | |
295 | ||
3b63d2d3 LP |
296 | /* Do not delete read-only files owned by root */ |
297 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) | |
298 | continue; | |
299 | ||
3b63d2d3 | 300 | if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) { |
0d0f0c50 | 301 | r = log_oom(); |
3b63d2d3 LP |
302 | goto finish; |
303 | } | |
304 | ||
305 | /* Is there an item configured for this path? */ | |
306 | if (hashmap_get(items, sub_path)) | |
307 | continue; | |
308 | ||
b8bb3e8f LP |
309 | if (find_glob(globs, sub_path)) |
310 | continue; | |
311 | ||
3b63d2d3 LP |
312 | if (S_ISDIR(s.st_mode)) { |
313 | ||
314 | if (mountpoint && | |
315 | streq(dent->d_name, "lost+found") && | |
316 | s.st_uid == 0) | |
317 | continue; | |
318 | ||
319 | if (maxdepth <= 0) | |
320 | log_warning("Reached max depth on %s.", sub_path); | |
321 | else { | |
7fd1b19b | 322 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
323 | int q; |
324 | ||
e5f3d1ba | 325 | sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME); |
3b63d2d3 LP |
326 | if (sub_dir == NULL) { |
327 | if (errno != ENOENT) { | |
328 | log_error("opendir(%s/%s) failed: %m", p, dent->d_name); | |
329 | r = -errno; | |
330 | } | |
331 | ||
332 | continue; | |
333 | } | |
334 | ||
78a92a5a | 335 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
336 | |
337 | if (q < 0) | |
338 | r = q; | |
339 | } | |
340 | ||
24f3a374 LP |
341 | /* Note: if you are wondering why we don't |
342 | * support the sticky bit for excluding | |
343 | * directories from cleaning like we do it for | |
344 | * other file system objects: well, the sticky | |
345 | * bit already has a meaning for directories, | |
346 | * so we don't want to overload that. */ | |
347 | ||
348 | if (keep_this_level) | |
349 | continue; | |
350 | ||
3b63d2d3 LP |
351 | /* Ignore ctime, we change it when deleting */ |
352 | age = MAX(timespec_load(&s.st_mtim), | |
353 | timespec_load(&s.st_atim)); | |
354 | if (age >= cutoff) | |
355 | continue; | |
356 | ||
a6187d4c | 357 | if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) { |
78a92a5a | 358 | log_debug("rmdir '%s'\n", sub_path); |
3b63d2d3 | 359 | |
78a92a5a MS |
360 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) { |
361 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
362 | log_error("rmdir(%s): %m", sub_path); | |
363 | r = -errno; | |
364 | } | |
3b63d2d3 LP |
365 | } |
366 | } | |
367 | ||
368 | } else { | |
9c73736d LP |
369 | /* Skip files for which the sticky bit is |
370 | * set. These are semantics we define, and are | |
371 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
372 | * specification for details. */ | |
373 | if (s.st_mode & S_ISVTX) | |
374 | continue; | |
375 | ||
17b90525 | 376 | if (mountpoint && S_ISREG(s.st_mode)) { |
3b63d2d3 LP |
377 | if (streq(dent->d_name, ".journal") && |
378 | s.st_uid == 0) | |
379 | continue; | |
380 | ||
381 | if (streq(dent->d_name, "aquota.user") || | |
382 | streq(dent->d_name, "aquota.group")) | |
383 | continue; | |
384 | } | |
385 | ||
17b90525 LP |
386 | /* Ignore sockets that are listed in /proc/net/unix */ |
387 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) | |
388 | continue; | |
389 | ||
78ab08eb LP |
390 | /* Ignore device nodes */ |
391 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) | |
392 | continue; | |
393 | ||
24f3a374 LP |
394 | /* Keep files on this level around if this is |
395 | * requested */ | |
396 | if (keep_this_level) | |
397 | continue; | |
398 | ||
3b63d2d3 LP |
399 | age = MAX3(timespec_load(&s.st_mtim), |
400 | timespec_load(&s.st_atim), | |
401 | timespec_load(&s.st_ctim)); | |
402 | ||
403 | if (age >= cutoff) | |
404 | continue; | |
405 | ||
406 | log_debug("unlink '%s'\n", sub_path); | |
407 | ||
408 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) { | |
409 | if (errno != ENOENT) { | |
410 | log_error("unlink(%s): %m", sub_path); | |
411 | r = -errno; | |
412 | } | |
413 | } | |
414 | ||
415 | deleted = true; | |
416 | } | |
417 | } | |
418 | ||
419 | finish: | |
420 | if (deleted) { | |
421 | /* Restore original directory timestamps */ | |
422 | times[0] = ds->st_atim; | |
423 | times[1] = ds->st_mtim; | |
424 | ||
425 | if (futimens(dirfd(d), times) < 0) | |
426 | log_error("utimensat(%s): %m", p); | |
427 | } | |
428 | ||
3b63d2d3 LP |
429 | return r; |
430 | } | |
431 | ||
062e01bb MS |
432 | static int item_set_perms(Item *i, const char *path) { |
433 | /* not using i->path directly because it may be a glob */ | |
434 | if (i->mode_set) | |
435 | if (chmod(path, i->mode) < 0) { | |
436 | log_error("chmod(%s) failed: %m", path); | |
437 | return -errno; | |
438 | } | |
439 | ||
440 | if (i->uid_set || i->gid_set) | |
441 | if (chown(path, | |
442 | i->uid_set ? i->uid : (uid_t) -1, | |
443 | i->gid_set ? i->gid : (gid_t) -1) < 0) { | |
444 | ||
445 | log_error("chown(%s) failed: %m", path); | |
446 | return -errno; | |
447 | } | |
448 | ||
c9bc0764 | 449 | return label_fix(path, false, false); |
062e01bb MS |
450 | } |
451 | ||
d4e9eb91 DR |
452 | static int write_one_file(Item *i, const char *path) { |
453 | int r, e, fd, flags; | |
454 | struct stat st; | |
d4e9eb91 DR |
455 | |
456 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND : | |
457 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0; | |
458 | ||
5c0d398d LP |
459 | RUN_WITH_UMASK(0) { |
460 | label_context_set(path, S_IFREG); | |
461 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode); | |
462 | e = errno; | |
463 | label_context_clear(); | |
464 | errno = e; | |
465 | } | |
d4e9eb91 DR |
466 | |
467 | if (fd < 0) { | |
468 | if (i->type == WRITE_FILE && errno == ENOENT) | |
469 | return 0; | |
470 | ||
471 | log_error("Failed to create file %s: %m", path); | |
472 | return -errno; | |
473 | } | |
474 | ||
475 | if (i->argument) { | |
476 | ssize_t n; | |
477 | size_t l; | |
54693d9b | 478 | _cleanup_free_ char *unescaped; |
d4e9eb91 | 479 | |
54693d9b | 480 | unescaped = cunescape(i->argument); |
3785ba69 TJ |
481 | if (unescaped == NULL) { |
482 | close_nointr_nofail(fd); | |
54693d9b | 483 | return log_oom(); |
3785ba69 | 484 | } |
d4e9eb91 | 485 | |
54693d9b DR |
486 | l = strlen(unescaped); |
487 | n = write(fd, unescaped, l); | |
d4e9eb91 | 488 | |
d4e9eb91 DR |
489 | if (n < 0 || (size_t) n < l) { |
490 | log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write"); | |
491 | close_nointr_nofail(fd); | |
492 | return n < 0 ? n : -EIO; | |
493 | } | |
494 | } | |
495 | ||
3612fbc1 DR |
496 | close_nointr_nofail(fd); |
497 | ||
d4e9eb91 DR |
498 | if (stat(path, &st) < 0) { |
499 | log_error("stat(%s) failed: %m", path); | |
500 | return -errno; | |
501 | } | |
502 | ||
503 | if (!S_ISREG(st.st_mode)) { | |
504 | log_error("%s is not a file.", path); | |
505 | return -EEXIST; | |
506 | } | |
507 | ||
508 | r = item_set_perms(i, path); | |
509 | if (r < 0) | |
510 | return r; | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
062e01bb | 515 | static int recursive_relabel_children(Item *i, const char *path) { |
7fd1b19b | 516 | _cleanup_closedir_ DIR *d; |
a8d88783 MS |
517 | int ret = 0; |
518 | ||
519 | /* This returns the first error we run into, but nevertheless | |
520 | * tries to go on */ | |
521 | ||
522 | d = opendir(path); | |
523 | if (!d) | |
524 | return errno == ENOENT ? 0 : -errno; | |
525 | ||
526 | for (;;) { | |
7d5e9c0f LP |
527 | struct dirent *de; |
528 | union dirent_storage buf; | |
a8d88783 MS |
529 | bool is_dir; |
530 | int r; | |
7fd1b19b | 531 | _cleanup_free_ char *entry_path = NULL; |
a8d88783 | 532 | |
7d5e9c0f | 533 | r = readdir_r(d, &buf.de, &de); |
a8d88783 MS |
534 | if (r != 0) { |
535 | if (ret == 0) | |
536 | ret = -r; | |
537 | break; | |
538 | } | |
539 | ||
540 | if (!de) | |
541 | break; | |
542 | ||
543 | if (streq(de->d_name, ".") || streq(de->d_name, "..")) | |
544 | continue; | |
545 | ||
546 | if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) { | |
547 | if (ret == 0) | |
548 | ret = -ENOMEM; | |
549 | continue; | |
550 | } | |
551 | ||
552 | if (de->d_type == DT_UNKNOWN) { | |
553 | struct stat st; | |
554 | ||
555 | if (lstat(entry_path, &st) < 0) { | |
556 | if (ret == 0 && errno != ENOENT) | |
557 | ret = -errno; | |
a8d88783 MS |
558 | continue; |
559 | } | |
560 | ||
561 | is_dir = S_ISDIR(st.st_mode); | |
562 | ||
563 | } else | |
564 | is_dir = de->d_type == DT_DIR; | |
565 | ||
062e01bb | 566 | r = item_set_perms(i, entry_path); |
a8d88783 MS |
567 | if (r < 0) { |
568 | if (ret == 0 && r != -ENOENT) | |
569 | ret = r; | |
a8d88783 MS |
570 | continue; |
571 | } | |
572 | ||
573 | if (is_dir) { | |
062e01bb | 574 | r = recursive_relabel_children(i, entry_path); |
a8d88783 MS |
575 | if (r < 0 && ret == 0) |
576 | ret = r; | |
577 | } | |
a8d88783 MS |
578 | } |
579 | ||
a8d88783 MS |
580 | return ret; |
581 | } | |
582 | ||
583 | static int recursive_relabel(Item *i, const char *path) { | |
584 | int r; | |
585 | struct stat st; | |
586 | ||
062e01bb | 587 | r = item_set_perms(i, path); |
a8d88783 MS |
588 | if (r < 0) |
589 | return r; | |
590 | ||
591 | if (lstat(path, &st) < 0) | |
592 | return -errno; | |
593 | ||
594 | if (S_ISDIR(st.st_mode)) | |
062e01bb | 595 | r = recursive_relabel_children(i, path); |
a8d88783 MS |
596 | |
597 | return r; | |
598 | } | |
599 | ||
99e68c0b MS |
600 | static int glob_item(Item *i, int (*action)(Item *, const char *)) { |
601 | int r = 0, k; | |
7fd1b19b | 602 | _cleanup_globfree_ glob_t g = {}; |
99e68c0b MS |
603 | char **fn; |
604 | ||
99e68c0b | 605 | errno = 0; |
c84a9488 ZJS |
606 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g); |
607 | if (k != 0) | |
99e68c0b | 608 | if (k != GLOB_NOMATCH) { |
8333c77e | 609 | if (errno > 0) |
99e68c0b MS |
610 | errno = EIO; |
611 | ||
612 | log_error("glob(%s) failed: %m", i->path); | |
613 | return -errno; | |
614 | } | |
99e68c0b | 615 | |
c84a9488 ZJS |
616 | STRV_FOREACH(fn, g.gl_pathv) { |
617 | k = action(i, *fn); | |
618 | if (k < 0) | |
99e68c0b | 619 | r = k; |
c84a9488 | 620 | } |
99e68c0b | 621 | |
99e68c0b MS |
622 | return r; |
623 | } | |
624 | ||
3b63d2d3 | 625 | static int create_item(Item *i) { |
e9a5ef7c | 626 | int r, e; |
3b63d2d3 | 627 | struct stat st; |
5008d581 | 628 | |
3b63d2d3 | 629 | assert(i); |
5008d581 | 630 | |
3b63d2d3 LP |
631 | switch (i->type) { |
632 | ||
633 | case IGNORE_PATH: | |
78a92a5a | 634 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
635 | case REMOVE_PATH: |
636 | case RECURSIVE_REMOVE_PATH: | |
637 | return 0; | |
5008d581 | 638 | |
3b63d2d3 | 639 | case CREATE_FILE: |
31ed59c5 | 640 | case TRUNCATE_FILE: |
1845fdd9 DR |
641 | r = write_one_file(i, i->path); |
642 | if (r < 0) | |
643 | return r; | |
644 | break; | |
d4e9eb91 DR |
645 | case WRITE_FILE: |
646 | r = glob_item(i, write_one_file); | |
f05bc3f7 MS |
647 | if (r < 0) |
648 | return r; | |
5008d581 | 649 | |
3b63d2d3 LP |
650 | break; |
651 | ||
652 | case TRUNCATE_DIRECTORY: | |
653 | case CREATE_DIRECTORY: | |
5008d581 | 654 | |
5c0d398d LP |
655 | RUN_WITH_UMASK(0000) { |
656 | mkdir_parents_label(i->path, 0755); | |
657 | r = mkdir(i->path, i->mode); | |
658 | } | |
5008d581 LP |
659 | |
660 | if (r < 0 && errno != EEXIST) { | |
3b63d2d3 | 661 | log_error("Failed to create directory %s: %m", i->path); |
f05bc3f7 | 662 | return -errno; |
5008d581 LP |
663 | } |
664 | ||
3b63d2d3 LP |
665 | if (stat(i->path, &st) < 0) { |
666 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 667 | return -errno; |
5008d581 LP |
668 | } |
669 | ||
670 | if (!S_ISDIR(st.st_mode)) { | |
3b63d2d3 | 671 | log_error("%s is not a directory.", i->path); |
f05bc3f7 | 672 | return -EEXIST; |
5008d581 LP |
673 | } |
674 | ||
062e01bb | 675 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
676 | if (r < 0) |
677 | return r; | |
3b63d2d3 LP |
678 | |
679 | break; | |
ee17ee7c LP |
680 | |
681 | case CREATE_FIFO: | |
682 | ||
5c0d398d LP |
683 | RUN_WITH_UMASK(0000) { |
684 | r = mkfifo(i->path, i->mode); | |
685 | } | |
ee17ee7c LP |
686 | |
687 | if (r < 0 && errno != EEXIST) { | |
688 | log_error("Failed to create fifo %s: %m", i->path); | |
f05bc3f7 | 689 | return -errno; |
ee17ee7c LP |
690 | } |
691 | ||
692 | if (stat(i->path, &st) < 0) { | |
693 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 694 | return -errno; |
ee17ee7c LP |
695 | } |
696 | ||
697 | if (!S_ISFIFO(st.st_mode)) { | |
698 | log_error("%s is not a fifo.", i->path); | |
f05bc3f7 | 699 | return -EEXIST; |
ee17ee7c LP |
700 | } |
701 | ||
062e01bb | 702 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
703 | if (r < 0) |
704 | return r; | |
ee17ee7c LP |
705 | |
706 | break; | |
a8d88783 | 707 | |
468d726b LP |
708 | case CREATE_SYMLINK: { |
709 | char *x; | |
710 | ||
e9a5ef7c | 711 | label_context_set(i->path, S_IFLNK); |
468d726b | 712 | r = symlink(i->argument, i->path); |
e9a5ef7c KS |
713 | e = errno; |
714 | label_context_clear(); | |
715 | errno = e; | |
716 | ||
468d726b LP |
717 | if (r < 0 && errno != EEXIST) { |
718 | log_error("symlink(%s, %s) failed: %m", i->argument, i->path); | |
719 | return -errno; | |
720 | } | |
721 | ||
722 | r = readlink_malloc(i->path, &x); | |
723 | if (r < 0) { | |
724 | log_error("readlink(%s) failed: %s", i->path, strerror(-r)); | |
725 | return -errno; | |
726 | } | |
727 | ||
728 | if (!streq(i->argument, x)) { | |
729 | free(x); | |
730 | log_error("%s is not the right symlinks.", i->path); | |
731 | return -EEXIST; | |
732 | } | |
733 | ||
734 | free(x); | |
735 | break; | |
736 | } | |
737 | ||
738 | case CREATE_BLOCK_DEVICE: | |
739 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
740 | mode_t file_type; |
741 | ||
742 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
743 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 744 | shouldn't attempt to create the device node in |
cb7ed9df LP |
745 | that case to avoid noise, and we don't support |
746 | virtualized devices in containers anyway. */ | |
747 | ||
748 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
749 | return 0; | |
750 | } | |
751 | ||
752 | file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR); | |
468d726b | 753 | |
5c0d398d LP |
754 | RUN_WITH_UMASK(0000) { |
755 | label_context_set(i->path, file_type); | |
756 | r = mknod(i->path, i->mode | file_type, i->major_minor); | |
757 | e = errno; | |
758 | label_context_clear(); | |
759 | errno = e; | |
760 | } | |
468d726b LP |
761 | |
762 | if (r < 0 && errno != EEXIST) { | |
763 | log_error("Failed to create device node %s: %m", i->path); | |
764 | return -errno; | |
765 | } | |
766 | ||
767 | if (stat(i->path, &st) < 0) { | |
768 | log_error("stat(%s) failed: %m", i->path); | |
769 | return -errno; | |
770 | } | |
771 | ||
e7aee759 | 772 | if ((st.st_mode & S_IFMT) != file_type) { |
468d726b LP |
773 | log_error("%s is not a device node.", i->path); |
774 | return -EEXIST; | |
775 | } | |
776 | ||
777 | r = item_set_perms(i, i->path); | |
778 | if (r < 0) | |
779 | return r; | |
780 | ||
781 | break; | |
782 | } | |
783 | ||
777b87e7 MS |
784 | case RELABEL_PATH: |
785 | ||
786 | r = glob_item(i, item_set_perms); | |
787 | if (r < 0) | |
96ca8194 | 788 | return r; |
777b87e7 MS |
789 | break; |
790 | ||
a8d88783 MS |
791 | case RECURSIVE_RELABEL_PATH: |
792 | ||
793 | r = glob_item(i, recursive_relabel); | |
794 | if (r < 0) | |
795 | return r; | |
3b63d2d3 LP |
796 | } |
797 | ||
3b63d2d3 LP |
798 | log_debug("%s created successfully.", i->path); |
799 | ||
f05bc3f7 | 800 | return 0; |
3b63d2d3 LP |
801 | } |
802 | ||
a0896123 | 803 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
804 | int r; |
805 | ||
806 | assert(i); | |
807 | ||
808 | switch (i->type) { | |
809 | ||
810 | case CREATE_FILE: | |
811 | case TRUNCATE_FILE: | |
812 | case CREATE_DIRECTORY: | |
ee17ee7c | 813 | case CREATE_FIFO: |
468d726b LP |
814 | case CREATE_SYMLINK: |
815 | case CREATE_BLOCK_DEVICE: | |
816 | case CREATE_CHAR_DEVICE: | |
3b63d2d3 | 817 | case IGNORE_PATH: |
78a92a5a | 818 | case IGNORE_DIRECTORY_PATH: |
777b87e7 | 819 | case RELABEL_PATH: |
a8d88783 | 820 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 821 | case WRITE_FILE: |
3b63d2d3 LP |
822 | break; |
823 | ||
824 | case REMOVE_PATH: | |
b8bb3e8f LP |
825 | if (remove(instance) < 0 && errno != ENOENT) { |
826 | log_error("remove(%s): %m", instance); | |
3b63d2d3 | 827 | return -errno; |
5008d581 | 828 | } |
3b63d2d3 LP |
829 | |
830 | break; | |
831 | ||
832 | case TRUNCATE_DIRECTORY: | |
833 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
834 | /* FIXME: we probably should use dir_cleanup() here |
835 | * instead of rm_rf() so that 'x' is honoured. */ | |
f56d5db9 | 836 | r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false); |
468d726b | 837 | if (r < 0 && r != -ENOENT) { |
b8bb3e8f | 838 | log_error("rm_rf(%s): %s", instance, strerror(-r)); |
3b63d2d3 LP |
839 | return r; |
840 | } | |
841 | ||
842 | break; | |
843 | } | |
844 | ||
845 | return 0; | |
846 | } | |
847 | ||
a0896123 | 848 | static int remove_item(Item *i) { |
99e68c0b MS |
849 | int r = 0; |
850 | ||
b8bb3e8f LP |
851 | assert(i); |
852 | ||
853 | switch (i->type) { | |
854 | ||
855 | case CREATE_FILE: | |
856 | case TRUNCATE_FILE: | |
857 | case CREATE_DIRECTORY: | |
ee17ee7c | 858 | case CREATE_FIFO: |
468d726b LP |
859 | case CREATE_SYMLINK: |
860 | case CREATE_CHAR_DEVICE: | |
861 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 862 | case IGNORE_PATH: |
78a92a5a | 863 | case IGNORE_DIRECTORY_PATH: |
777b87e7 | 864 | case RELABEL_PATH: |
a8d88783 | 865 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 866 | case WRITE_FILE: |
b8bb3e8f LP |
867 | break; |
868 | ||
869 | case REMOVE_PATH: | |
870 | case TRUNCATE_DIRECTORY: | |
99e68c0b MS |
871 | case RECURSIVE_REMOVE_PATH: |
872 | r = glob_item(i, remove_item_instance); | |
873 | break; | |
b8bb3e8f LP |
874 | } |
875 | ||
99e68c0b | 876 | return r; |
b8bb3e8f LP |
877 | } |
878 | ||
78a92a5a | 879 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 880 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
881 | struct stat s, ps; |
882 | bool mountpoint; | |
883 | int r; | |
884 | usec_t cutoff, n; | |
885 | ||
886 | assert(i); | |
887 | ||
888 | if (!i->age_set) | |
889 | return 0; | |
890 | ||
891 | n = now(CLOCK_REALTIME); | |
892 | if (n < i->age) | |
893 | return 0; | |
894 | ||
895 | cutoff = n - i->age; | |
896 | ||
897 | d = opendir(instance); | |
898 | if (!d) { | |
899 | if (errno == ENOENT || errno == ENOTDIR) | |
900 | return 0; | |
901 | ||
902 | log_error("Failed to open directory %s: %m", i->path); | |
903 | return -errno; | |
904 | } | |
905 | ||
906 | if (fstat(dirfd(d), &s) < 0) { | |
907 | log_error("stat(%s) failed: %m", i->path); | |
19fbec19 | 908 | return -errno; |
78a92a5a MS |
909 | } |
910 | ||
911 | if (!S_ISDIR(s.st_mode)) { | |
912 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 913 | return -ENOTDIR; |
78a92a5a MS |
914 | } |
915 | ||
916 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) { | |
917 | log_error("stat(%s/..) failed: %m", i->path); | |
19fbec19 | 918 | return -errno; |
78a92a5a MS |
919 | } |
920 | ||
921 | mountpoint = s.st_dev != ps.st_dev || | |
922 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
923 | ||
19fbec19 ZJS |
924 | r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, |
925 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
926 | return r; |
927 | } | |
928 | ||
929 | static int clean_item(Item *i) { | |
930 | int r = 0; | |
931 | ||
932 | assert(i); | |
933 | ||
934 | switch (i->type) { | |
935 | case CREATE_DIRECTORY: | |
936 | case TRUNCATE_DIRECTORY: | |
937 | case IGNORE_PATH: | |
938 | clean_item_instance(i, i->path); | |
939 | break; | |
940 | case IGNORE_DIRECTORY_PATH: | |
941 | r = glob_item(i, clean_item_instance); | |
942 | break; | |
943 | default: | |
944 | break; | |
945 | } | |
946 | ||
947 | return r; | |
948 | } | |
949 | ||
3b63d2d3 LP |
950 | static int process_item(Item *i) { |
951 | int r, q, p; | |
952 | ||
953 | assert(i); | |
954 | ||
955 | r = arg_create ? create_item(i) : 0; | |
a0896123 | 956 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
957 | p = arg_clean ? clean_item(i) : 0; |
958 | ||
959 | if (r < 0) | |
960 | return r; | |
961 | ||
962 | if (q < 0) | |
963 | return q; | |
964 | ||
965 | return p; | |
966 | } | |
967 | ||
968 | static void item_free(Item *i) { | |
969 | assert(i); | |
970 | ||
971 | free(i->path); | |
468d726b | 972 | free(i->argument); |
3b63d2d3 LP |
973 | free(i); |
974 | } | |
975 | ||
e2f2fb78 MW |
976 | static inline void item_freep(Item **i) { |
977 | if (*i) | |
978 | item_free(*i); | |
979 | } | |
980 | #define _cleanup_item_free_ _cleanup_(item_freep) | |
981 | ||
bfe95f35 LP |
982 | static bool item_equal(Item *a, Item *b) { |
983 | assert(a); | |
984 | assert(b); | |
985 | ||
986 | if (!streq_ptr(a->path, b->path)) | |
987 | return false; | |
988 | ||
989 | if (a->type != b->type) | |
990 | return false; | |
991 | ||
992 | if (a->uid_set != b->uid_set || | |
993 | (a->uid_set && a->uid != b->uid)) | |
994 | return false; | |
995 | ||
996 | if (a->gid_set != b->gid_set || | |
997 | (a->gid_set && a->gid != b->gid)) | |
998 | return false; | |
999 | ||
1000 | if (a->mode_set != b->mode_set || | |
1001 | (a->mode_set && a->mode != b->mode)) | |
1002 | return false; | |
1003 | ||
1004 | if (a->age_set != b->age_set || | |
1005 | (a->age_set && a->age != b->age)) | |
1006 | return false; | |
1007 | ||
31ed59c5 LP |
1008 | if ((a->type == CREATE_FILE || |
1009 | a->type == TRUNCATE_FILE || | |
1010 | a->type == WRITE_FILE || | |
1011 | a->type == CREATE_SYMLINK) && | |
1733ca54 | 1012 | !streq_ptr(a->argument, b->argument)) |
468d726b LP |
1013 | return false; |
1014 | ||
1015 | if ((a->type == CREATE_CHAR_DEVICE || | |
1016 | a->type == CREATE_BLOCK_DEVICE) && | |
1017 | a->major_minor != b->major_minor) | |
1018 | return false; | |
1019 | ||
bfe95f35 LP |
1020 | return true; |
1021 | } | |
1022 | ||
a2aced4a DR |
1023 | static bool should_include_path(const char *path) { |
1024 | char **prefix; | |
1025 | ||
5c795114 DR |
1026 | STRV_FOREACH(prefix, exclude_prefixes) { |
1027 | if (path_startswith(path, *prefix)) | |
1028 | return false; | |
1029 | } | |
a2aced4a DR |
1030 | |
1031 | STRV_FOREACH(prefix, include_prefixes) { | |
1032 | if (path_startswith(path, *prefix)) | |
1033 | return true; | |
1034 | } | |
1035 | ||
5c795114 DR |
1036 | /* no matches, so we should include this path only if we |
1037 | * have no whitelist at all */ | |
1038 | return strv_length(include_prefixes) == 0; | |
a2aced4a DR |
1039 | } |
1040 | ||
fba6e687 | 1041 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a LP |
1042 | |
1043 | static const Specifier specifier_table[] = { | |
1044 | { 'm', specifier_machine_id, NULL }, | |
1045 | { 'b', specifier_boot_id, NULL }, | |
1046 | { 'H', specifier_host_name, NULL }, | |
1047 | { 'v', specifier_kernel_release, NULL }, | |
1048 | {} | |
1049 | }; | |
1050 | ||
e2f2fb78 | 1051 | _cleanup_item_free_ Item *i = NULL; |
7f2c1f4d | 1052 | Item *existing; |
7fd1b19b | 1053 | _cleanup_free_ char |
1731e34a | 1054 | *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
66ccd038 | 1055 | char type; |
bfe95f35 | 1056 | Hashmap *h; |
31ed59c5 | 1057 | int r, n = -1; |
3b63d2d3 LP |
1058 | |
1059 | assert(fname); | |
1060 | assert(line >= 1); | |
1061 | assert(buffer); | |
1062 | ||
19fbec19 ZJS |
1063 | r = sscanf(buffer, |
1064 | "%c %ms %ms %ms %ms %ms %n", | |
66ccd038 | 1065 | &type, |
1731e34a | 1066 | &path, |
bd40a2d8 LP |
1067 | &mode, |
1068 | &user, | |
1069 | &group, | |
468d726b | 1070 | &age, |
19fbec19 ZJS |
1071 | &n); |
1072 | if (r < 2) { | |
3b63d2d3 | 1073 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1074 | return -EIO; |
5008d581 LP |
1075 | } |
1076 | ||
1731e34a LP |
1077 | i = new0(Item, 1); |
1078 | if (!i) | |
1079 | return log_oom(); | |
1080 | ||
1081 | r = specifier_printf(path, specifier_table, NULL, &i->path); | |
1082 | if (r < 0) { | |
1083 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1084 | return r; | |
1085 | } | |
1086 | ||
31ed59c5 LP |
1087 | if (n >= 0) { |
1088 | n += strspn(buffer+n, WHITESPACE); | |
1089 | if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) { | |
1090 | i->argument = unquote(buffer+n, "\""); | |
0d0f0c50 SL |
1091 | if (!i->argument) |
1092 | return log_oom(); | |
31ed59c5 LP |
1093 | } |
1094 | } | |
1095 | ||
777b87e7 | 1096 | switch(type) { |
468d726b | 1097 | |
777b87e7 MS |
1098 | case CREATE_FILE: |
1099 | case TRUNCATE_FILE: | |
1100 | case CREATE_DIRECTORY: | |
1101 | case TRUNCATE_DIRECTORY: | |
1102 | case CREATE_FIFO: | |
1103 | case IGNORE_PATH: | |
78a92a5a | 1104 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1105 | case REMOVE_PATH: |
1106 | case RECURSIVE_REMOVE_PATH: | |
1107 | case RELABEL_PATH: | |
1108 | case RECURSIVE_RELABEL_PATH: | |
1109 | break; | |
468d726b LP |
1110 | |
1111 | case CREATE_SYMLINK: | |
1112 | if (!i->argument) { | |
1113 | log_error("[%s:%u] Symlink file requires argument.", fname, line); | |
7f2c1f4d | 1114 | return -EBADMSG; |
468d726b LP |
1115 | } |
1116 | break; | |
1117 | ||
31ed59c5 LP |
1118 | case WRITE_FILE: |
1119 | if (!i->argument) { | |
1120 | log_error("[%s:%u] Write file requires argument.", fname, line); | |
7f2c1f4d | 1121 | return -EBADMSG; |
31ed59c5 LP |
1122 | } |
1123 | break; | |
1124 | ||
468d726b LP |
1125 | case CREATE_CHAR_DEVICE: |
1126 | case CREATE_BLOCK_DEVICE: { | |
1127 | unsigned major, minor; | |
1128 | ||
1129 | if (!i->argument) { | |
1130 | log_error("[%s:%u] Device file requires argument.", fname, line); | |
7f2c1f4d | 1131 | return -EBADMSG; |
468d726b LP |
1132 | } |
1133 | ||
1134 | if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) { | |
1135 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument); | |
7f2c1f4d | 1136 | return -EBADMSG; |
468d726b LP |
1137 | } |
1138 | ||
1139 | i->major_minor = makedev(major, minor); | |
1140 | break; | |
1141 | } | |
1142 | ||
777b87e7 | 1143 | default: |
a8d88783 | 1144 | log_error("[%s:%u] Unknown file type '%c'.", fname, line, type); |
7f2c1f4d | 1145 | return -EBADMSG; |
3b63d2d3 | 1146 | } |
468d726b | 1147 | |
a8d88783 | 1148 | i->type = type; |
3b63d2d3 LP |
1149 | |
1150 | if (!path_is_absolute(i->path)) { | |
1151 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path); | |
7f2c1f4d | 1152 | return -EBADMSG; |
3b63d2d3 LP |
1153 | } |
1154 | ||
1155 | path_kill_slashes(i->path); | |
1156 | ||
a2aced4a | 1157 | if (!should_include_path(i->path)) |
7f2c1f4d | 1158 | return 0; |
5008d581 | 1159 | |
3b63d2d3 | 1160 | if (user && !streq(user, "-")) { |
4b67834e LP |
1161 | const char *u = user; |
1162 | ||
d05c5031 | 1163 | r = get_user_creds(&u, &i->uid, NULL, NULL, NULL); |
4b67834e | 1164 | if (r < 0) { |
3b63d2d3 | 1165 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1166 | return r; |
3b63d2d3 LP |
1167 | } |
1168 | ||
1169 | i->uid_set = true; | |
1170 | } | |
1171 | ||
1172 | if (group && !streq(group, "-")) { | |
4b67834e LP |
1173 | const char *g = group; |
1174 | ||
1175 | r = get_group_creds(&g, &i->gid); | |
1176 | if (r < 0) { | |
3b63d2d3 | 1177 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1178 | return r; |
3b63d2d3 LP |
1179 | } |
1180 | ||
1181 | i->gid_set = true; | |
1182 | } | |
1183 | ||
1184 | if (mode && !streq(mode, "-")) { | |
1185 | unsigned m; | |
1186 | ||
1187 | if (sscanf(mode, "%o", &m) != 1) { | |
1188 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); | |
7f2c1f4d | 1189 | return -ENOENT; |
3b63d2d3 LP |
1190 | } |
1191 | ||
1192 | i->mode = m; | |
1193 | i->mode_set = true; | |
1194 | } else | |
468d726b LP |
1195 | i->mode = |
1196 | i->type == CREATE_DIRECTORY || | |
1197 | i->type == TRUNCATE_DIRECTORY ? 0755 : 0644; | |
3b63d2d3 LP |
1198 | |
1199 | if (age && !streq(age, "-")) { | |
24f3a374 LP |
1200 | const char *a = age; |
1201 | ||
1202 | if (*a == '~') { | |
1203 | i->keep_first_level = true; | |
1204 | a++; | |
1205 | } | |
1206 | ||
7f602784 | 1207 | if (parse_sec(a, &i->age) < 0) { |
3b63d2d3 | 1208 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 1209 | return -EBADMSG; |
3b63d2d3 LP |
1210 | } |
1211 | ||
1212 | i->age_set = true; | |
1213 | } | |
1214 | ||
bfe95f35 LP |
1215 | h = needs_glob(i->type) ? globs : items; |
1216 | ||
468d726b LP |
1217 | existing = hashmap_get(h, i->path); |
1218 | if (existing) { | |
bfe95f35 LP |
1219 | |
1220 | /* Two identical items are fine */ | |
1221 | if (!item_equal(existing, i)) | |
022707d9 | 1222 | log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path); |
022707d9 | 1223 | |
7f2c1f4d | 1224 | return 0; |
bfe95f35 LP |
1225 | } |
1226 | ||
468d726b LP |
1227 | r = hashmap_put(h, i->path, i); |
1228 | if (r < 0) { | |
3b63d2d3 | 1229 | log_error("Failed to insert item %s: %s", i->path, strerror(-r)); |
7f2c1f4d | 1230 | return r; |
3b63d2d3 LP |
1231 | } |
1232 | ||
7f2c1f4d | 1233 | i = NULL; /* avoid cleanup */ |
5008d581 | 1234 | |
7f2c1f4d | 1235 | return 0; |
5008d581 LP |
1236 | } |
1237 | ||
3b63d2d3 LP |
1238 | static int help(void) { |
1239 | ||
522d4a49 LP |
1240 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
1241 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 DR |
1242 | " -h --help Show this help\n" |
1243 | " --create Create marked files/directories\n" | |
1244 | " --clean Clean up marked directories\n" | |
1245 | " --remove Remove marked files/directories\n" | |
1246 | " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n" | |
1247 | " --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n", | |
3b63d2d3 LP |
1248 | program_invocation_short_name); |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | static int parse_argv(int argc, char *argv[]) { | |
1254 | ||
1255 | enum { | |
1256 | ARG_CREATE, | |
1257 | ARG_CLEAN, | |
fba6e687 | 1258 | ARG_REMOVE, |
5c795114 DR |
1259 | ARG_PREFIX, |
1260 | ARG_EXCLUDE_PREFIX, | |
3b63d2d3 LP |
1261 | }; |
1262 | ||
1263 | static const struct option options[] = { | |
5c795114 DR |
1264 | { "help", no_argument, NULL, 'h' }, |
1265 | { "create", no_argument, NULL, ARG_CREATE }, | |
1266 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
1267 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
1268 | { "prefix", required_argument, NULL, ARG_PREFIX }, | |
1269 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
1270 | { NULL, 0, NULL, 0 } | |
3b63d2d3 LP |
1271 | }; |
1272 | ||
1273 | int c; | |
1274 | ||
1275 | assert(argc >= 0); | |
1276 | assert(argv); | |
1277 | ||
1278 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) { | |
1279 | ||
1280 | switch (c) { | |
1281 | ||
1282 | case 'h': | |
1283 | help(); | |
1284 | return 0; | |
1285 | ||
1286 | case ARG_CREATE: | |
1287 | arg_create = true; | |
1288 | break; | |
1289 | ||
1290 | case ARG_CLEAN: | |
1291 | arg_clean = true; | |
1292 | break; | |
1293 | ||
1294 | case ARG_REMOVE: | |
1295 | arg_remove = true; | |
1296 | break; | |
1297 | ||
fba6e687 | 1298 | case ARG_PREFIX: |
a2aced4a DR |
1299 | if (strv_extend(&include_prefixes, optarg) < 0) |
1300 | return log_oom(); | |
fba6e687 LP |
1301 | break; |
1302 | ||
5c795114 DR |
1303 | case ARG_EXCLUDE_PREFIX: |
1304 | if (strv_extend(&exclude_prefixes, optarg) < 0) | |
1305 | return log_oom(); | |
1306 | break; | |
1307 | ||
3b63d2d3 LP |
1308 | case '?': |
1309 | return -EINVAL; | |
1310 | ||
1311 | default: | |
1312 | log_error("Unknown option code %c", c); | |
1313 | return -EINVAL; | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 1318 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
1319 | return -EINVAL; |
1320 | } | |
1321 | ||
1322 | return 1; | |
1323 | } | |
1324 | ||
fba6e687 | 1325 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
1326 | _cleanup_fclose_ FILE *f = NULL; |
1327 | char line[LINE_MAX]; | |
78a92a5a | 1328 | Iterator iterator; |
1731e34a | 1329 | unsigned v = 0; |
78a92a5a | 1330 | Item *i; |
1731e34a | 1331 | int r; |
fba6e687 LP |
1332 | |
1333 | assert(fn); | |
1334 | ||
fabe5c0e LP |
1335 | r = search_and_fopen_nulstr(fn, "re", conf_file_dirs, &f); |
1336 | if (r < 0) { | |
1337 | if (ignore_enoent && r == -ENOENT) | |
fba6e687 LP |
1338 | return 0; |
1339 | ||
fabe5c0e LP |
1340 | log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r)); |
1341 | return r; | |
fba6e687 LP |
1342 | } |
1343 | ||
1731e34a LP |
1344 | FOREACH_LINE(line, f, break) { |
1345 | char *l; | |
fba6e687 LP |
1346 | int k; |
1347 | ||
fba6e687 LP |
1348 | v++; |
1349 | ||
1350 | l = strstrip(line); | |
1351 | if (*l == '#' || *l == 0) | |
1352 | continue; | |
1353 | ||
1731e34a LP |
1354 | k = parse_line(fn, v, l); |
1355 | if (k < 0 && r == 0) | |
1356 | r = k; | |
fba6e687 LP |
1357 | } |
1358 | ||
78a92a5a MS |
1359 | /* we have to determine age parameter for each entry of type X */ |
1360 | HASHMAP_FOREACH(i, globs, iterator) { | |
1361 | Iterator iter; | |
1362 | Item *j, *candidate_item = NULL; | |
1363 | ||
1364 | if (i->type != IGNORE_DIRECTORY_PATH) | |
1365 | continue; | |
1366 | ||
1367 | HASHMAP_FOREACH(j, items, iter) { | |
1368 | if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY) | |
1369 | continue; | |
1370 | ||
1371 | if (path_equal(j->path, i->path)) { | |
1372 | candidate_item = j; | |
1373 | break; | |
1374 | } | |
1375 | ||
1376 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
1377 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
1378 | candidate_item = j; | |
1379 | } | |
1380 | ||
1381 | if (candidate_item) { | |
1382 | i->age = candidate_item->age; | |
1383 | i->age_set = true; | |
1384 | } | |
1385 | } | |
1386 | ||
fba6e687 LP |
1387 | if (ferror(f)) { |
1388 | log_error("Failed to read from file %s: %m", fn); | |
1389 | if (r == 0) | |
1390 | r = -EIO; | |
1391 | } | |
1392 | ||
fba6e687 LP |
1393 | return r; |
1394 | } | |
1395 | ||
5008d581 | 1396 | int main(int argc, char *argv[]) { |
fabe5c0e | 1397 | int r, k; |
3b63d2d3 LP |
1398 | Item *i; |
1399 | Iterator iterator; | |
1400 | ||
fdcad0c2 LP |
1401 | r = parse_argv(argc, argv); |
1402 | if (r <= 0) | |
3b63d2d3 | 1403 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1404 | |
eb0ca9eb | 1405 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
1406 | log_parse_environment(); |
1407 | log_open(); | |
1408 | ||
4c12626c LP |
1409 | umask(0022); |
1410 | ||
e9a5ef7c | 1411 | label_init(NULL); |
5008d581 | 1412 | |
b8bb3e8f LP |
1413 | items = hashmap_new(string_hash_func, string_compare_func); |
1414 | globs = hashmap_new(string_hash_func, string_compare_func); | |
1415 | ||
1416 | if (!items || !globs) { | |
fabe5c0e | 1417 | r = log_oom(); |
3b63d2d3 LP |
1418 | goto finish; |
1419 | } | |
1420 | ||
fabe5c0e | 1421 | r = 0; |
5008d581 | 1422 | |
fba6e687 LP |
1423 | if (optind < argc) { |
1424 | int j; | |
5008d581 | 1425 | |
9125670f | 1426 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
1427 | k = read_config_file(argv[j], false); |
1428 | if (k < 0 && r == 0) | |
1429 | r = k; | |
9125670f | 1430 | } |
5008d581 | 1431 | |
fba6e687 | 1432 | } else { |
fabe5c0e LP |
1433 | _cleanup_strv_free_ char **files = NULL; |
1434 | char **f; | |
5008d581 | 1435 | |
fabe5c0e | 1436 | r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); |
44143309 | 1437 | if (r < 0) { |
44143309 KS |
1438 | log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r)); |
1439 | goto finish; | |
1440 | } | |
3b63d2d3 | 1441 | |
772f8371 | 1442 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
1443 | k = read_config_file(*f, true); |
1444 | if (k < 0 && r == 0) | |
1445 | r = k; | |
5008d581 | 1446 | } |
772f8371 | 1447 | } |
5008d581 | 1448 | |
b8bb3e8f | 1449 | HASHMAP_FOREACH(i, globs, iterator) |
21bdae12 | 1450 | process_item(i); |
b8bb3e8f | 1451 | |
3b63d2d3 | 1452 | HASHMAP_FOREACH(i, items, iterator) |
21bdae12 | 1453 | process_item(i); |
3b63d2d3 | 1454 | |
5008d581 | 1455 | finish: |
3b63d2d3 LP |
1456 | while ((i = hashmap_steal_first(items))) |
1457 | item_free(i); | |
1458 | ||
17b90525 LP |
1459 | while ((i = hashmap_steal_first(globs))) |
1460 | item_free(i); | |
1461 | ||
3b63d2d3 | 1462 | hashmap_free(items); |
b8bb3e8f | 1463 | hashmap_free(globs); |
5008d581 | 1464 | |
a2aced4a DR |
1465 | strv_free(include_prefixes); |
1466 | ||
17b90525 LP |
1467 | set_free_free(unix_sockets); |
1468 | ||
29003cff LP |
1469 | label_finish(); |
1470 | ||
fabe5c0e | 1471 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1472 | } |