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