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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 |
3f93da98 | 7 | Copyright 2015 Zbigniew Jędrzejewski-Szmek |
5008d581 LP |
8 | |
9 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
10 | under the terms of the GNU Lesser General Public License as published by |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
5008d581 LP |
12 | (at your option) any later version. |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 17 | Lesser General Public License for more details. |
5008d581 | 18 | |
5430f7f2 | 19 | You should have received a copy of the GNU Lesser General Public License |
5008d581 LP |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
21 | ***/ | |
22 | ||
23 | #include <unistd.h> | |
24 | #include <fcntl.h> | |
25 | #include <errno.h> | |
26 | #include <string.h> | |
5008d581 LP |
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> | |
b8bb3e8f LP |
37 | #include <glob.h> |
38 | #include <fnmatch.h> | |
505ef0e3 ZJS |
39 | #include <sys/stat.h> |
40 | #include <sys/types.h> | |
41 | #include <sys/param.h> | |
ebf4e801 | 42 | #include <sys/xattr.h> |
5008d581 LP |
43 | |
44 | #include "log.h" | |
45 | #include "util.h" | |
54693d9b | 46 | #include "macro.h" |
d39efe74 | 47 | #include "missing.h" |
49e942b2 | 48 | #include "mkdir.h" |
9eb977db | 49 | #include "path-util.h" |
5008d581 LP |
50 | #include "strv.h" |
51 | #include "label.h" | |
3b63d2d3 | 52 | #include "set.h" |
2c21044f | 53 | #include "conf-files.h" |
cb7ed9df | 54 | #include "capability.h" |
1731e34a | 55 | #include "specifier.h" |
eb9da376 | 56 | #include "build.h" |
849958d1 | 57 | #include "copy.h" |
d7b8eec7 LP |
58 | #include "selinux-util.h" |
59 | #include "btrfs-util.h" | |
f8eeeaf9 | 60 | #include "acl-util.h" |
5008d581 | 61 | |
01000479 | 62 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 63 | * them in the file system. This is intended to be used to create |
db019b8d KS |
64 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
65 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 66 | |
66ccd038 | 67 | typedef enum ItemType { |
b8bb3e8f | 68 | /* These ones take file names */ |
3b63d2d3 LP |
69 | CREATE_FILE = 'f', |
70 | TRUNCATE_FILE = 'F', | |
71 | CREATE_DIRECTORY = 'd', | |
72 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 73 | CREATE_SUBVOLUME = 'v', |
ee17ee7c | 74 | CREATE_FIFO = 'p', |
468d726b LP |
75 | CREATE_SYMLINK = 'L', |
76 | CREATE_CHAR_DEVICE = 'c', | |
77 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 78 | COPY_FILES = 'C', |
b8bb3e8f LP |
79 | |
80 | /* These ones take globs */ | |
b705ab6a ZJS |
81 | SET_XATTR = 't', |
82 | RECURSIVE_SET_XATTR = 'T', | |
83 | SET_ACL = 'a', | |
84 | RECURSIVE_SET_ACL = 'A', | |
cde684a2 | 85 | WRITE_FILE = 'w', |
3b63d2d3 | 86 | IGNORE_PATH = 'x', |
78a92a5a | 87 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 88 | REMOVE_PATH = 'r', |
a8d88783 | 89 | RECURSIVE_REMOVE_PATH = 'R', |
e73a03e0 | 90 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
777b87e7 | 91 | RELABEL_PATH = 'z', |
e73a03e0 | 92 | RECURSIVE_RELABEL_PATH = 'Z', |
66ccd038 | 93 | } ItemType; |
3b63d2d3 LP |
94 | |
95 | typedef struct Item { | |
66ccd038 | 96 | ItemType type; |
3b63d2d3 LP |
97 | |
98 | char *path; | |
468d726b | 99 | char *argument; |
ebf4e801 | 100 | char **xattrs; |
f8eeeaf9 ZJS |
101 | #ifdef HAVE_ACL |
102 | acl_t acl_access; | |
103 | acl_t acl_default; | |
104 | #endif | |
5008d581 LP |
105 | uid_t uid; |
106 | gid_t gid; | |
3b63d2d3 LP |
107 | mode_t mode; |
108 | usec_t age; | |
109 | ||
468d726b LP |
110 | dev_t major_minor; |
111 | ||
3b63d2d3 LP |
112 | bool uid_set:1; |
113 | bool gid_set:1; | |
114 | bool mode_set:1; | |
115 | bool age_set:1; | |
abef3f91 | 116 | bool mask_perms:1; |
24f3a374 LP |
117 | |
118 | bool keep_first_level:1; | |
1910cd0e | 119 | |
2e78fa79 LP |
120 | bool force:1; |
121 | ||
1910cd0e | 122 | bool done:1; |
3b63d2d3 LP |
123 | } Item; |
124 | ||
3f93da98 ZJS |
125 | typedef struct ItemArray { |
126 | Item *items; | |
127 | size_t count; | |
128 | size_t size; | |
129 | } ItemArray; | |
130 | ||
3b63d2d3 LP |
131 | static bool arg_create = false; |
132 | static bool arg_clean = false; | |
133 | static bool arg_remove = false; | |
81815651 | 134 | static bool arg_boot = false; |
3b63d2d3 | 135 | |
7bc040fa LP |
136 | static char **arg_include_prefixes = NULL; |
137 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 138 | static char *arg_root = NULL; |
fba6e687 | 139 | |
7f0a55d4 | 140 | static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles"); |
9125670f | 141 | |
3b63d2d3 LP |
142 | #define MAX_DEPTH 256 |
143 | ||
7bc040fa LP |
144 | static Hashmap *items = NULL, *globs = NULL; |
145 | static Set *unix_sockets = NULL; | |
146 | ||
66ccd038 | 147 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
148 | return IN_SET(t, |
149 | WRITE_FILE, | |
150 | IGNORE_PATH, | |
151 | IGNORE_DIRECTORY_PATH, | |
152 | REMOVE_PATH, | |
153 | RECURSIVE_REMOVE_PATH, | |
e73a03e0 | 154 | ADJUST_MODE, |
cde684a2 | 155 | RELABEL_PATH, |
b705ab6a ZJS |
156 | RECURSIVE_RELABEL_PATH, |
157 | SET_XATTR, | |
158 | RECURSIVE_SET_XATTR, | |
159 | SET_ACL, | |
160 | RECURSIVE_SET_ACL); | |
b8bb3e8f LP |
161 | } |
162 | ||
3f93da98 ZJS |
163 | static bool takes_ownership(ItemType t) { |
164 | return IN_SET(t, | |
165 | CREATE_FILE, | |
166 | TRUNCATE_FILE, | |
167 | CREATE_DIRECTORY, | |
168 | TRUNCATE_DIRECTORY, | |
169 | CREATE_SUBVOLUME, | |
170 | CREATE_FIFO, | |
171 | CREATE_SYMLINK, | |
172 | CREATE_CHAR_DEVICE, | |
173 | CREATE_BLOCK_DEVICE, | |
174 | COPY_FILES, | |
175 | ||
176 | WRITE_FILE, | |
177 | IGNORE_PATH, | |
178 | IGNORE_DIRECTORY_PATH, | |
179 | REMOVE_PATH, | |
180 | RECURSIVE_REMOVE_PATH); | |
181 | } | |
182 | ||
b8bb3e8f | 183 | static struct Item* find_glob(Hashmap *h, const char *match) { |
3f93da98 | 184 | ItemArray *j; |
b8bb3e8f LP |
185 | Iterator i; |
186 | ||
3f93da98 ZJS |
187 | HASHMAP_FOREACH(j, h, i) { |
188 | unsigned n; | |
189 | ||
190 | for (n = 0; n < j->count; n++) { | |
191 | Item *item = j->items + n; | |
192 | ||
193 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
194 | return item; | |
195 | } | |
196 | } | |
b8bb3e8f LP |
197 | |
198 | return NULL; | |
199 | } | |
200 | ||
17b90525 | 201 | static void load_unix_sockets(void) { |
7fd1b19b | 202 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
203 | char line[LINE_MAX]; |
204 | ||
205 | if (unix_sockets) | |
206 | return; | |
207 | ||
208 | /* We maintain a cache of the sockets we found in | |
209 | * /proc/net/unix to speed things up a little. */ | |
210 | ||
d5099efc | 211 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 212 | if (!unix_sockets) |
17b90525 LP |
213 | return; |
214 | ||
fdcad0c2 LP |
215 | f = fopen("/proc/net/unix", "re"); |
216 | if (!f) | |
17b90525 LP |
217 | return; |
218 | ||
fdcad0c2 LP |
219 | /* Skip header */ |
220 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
221 | goto fail; |
222 | ||
223 | for (;;) { | |
224 | char *p, *s; | |
225 | int k; | |
226 | ||
fdcad0c2 | 227 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
228 | break; |
229 | ||
230 | truncate_nl(line); | |
231 | ||
fdcad0c2 LP |
232 | p = strchr(line, ':'); |
233 | if (!p) | |
234 | continue; | |
235 | ||
236 | if (strlen(p) < 37) | |
17b90525 LP |
237 | continue; |
238 | ||
fdcad0c2 | 239 | p += 37; |
17b90525 | 240 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 241 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
242 | p += strspn(p, WHITESPACE); |
243 | ||
244 | if (*p != '/') | |
245 | continue; | |
246 | ||
fdcad0c2 LP |
247 | s = strdup(p); |
248 | if (!s) | |
17b90525 LP |
249 | goto fail; |
250 | ||
4ff21d85 LP |
251 | path_kill_slashes(s); |
252 | ||
ef42202a ZJS |
253 | k = set_consume(unix_sockets, s); |
254 | if (k < 0 && k != -EEXIST) | |
255 | goto fail; | |
17b90525 LP |
256 | } |
257 | ||
258 | return; | |
259 | ||
260 | fail: | |
261 | set_free_free(unix_sockets); | |
262 | unix_sockets = NULL; | |
17b90525 LP |
263 | } |
264 | ||
265 | static bool unix_socket_alive(const char *fn) { | |
266 | assert(fn); | |
267 | ||
268 | load_unix_sockets(); | |
269 | ||
270 | if (unix_sockets) | |
271 | return !!set_get(unix_sockets, (char*) fn); | |
272 | ||
273 | /* We don't know, so assume yes */ | |
274 | return true; | |
275 | } | |
276 | ||
99d680ac | 277 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 278 | |
2695c5c4 | 279 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
280 | int mount_id_parent, mount_id; |
281 | int r_p, r; | |
282 | ||
370c860f | 283 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
284 | if (r_p < 0) |
285 | r_p = -errno; | |
286 | ||
370c860f DR |
287 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
288 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
289 | if (r < 0) |
290 | r = -errno; | |
291 | ||
292 | /* got no handle; make no assumptions, return error */ | |
293 | if (r_p < 0 && r < 0) | |
294 | return r_p; | |
295 | ||
296 | /* got both handles; if they differ, it is a mount point */ | |
297 | if (r_p >= 0 && r >= 0) | |
298 | return mount_id_parent != mount_id; | |
299 | ||
300 | /* got only one handle; assume different mount points if one | |
301 | * of both queries was not supported by the filesystem */ | |
e7aab541 | 302 | if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
99d680ac KS |
303 | return true; |
304 | ||
305 | /* return error */ | |
306 | if (r_p < 0) | |
307 | return r_p; | |
308 | return r; | |
309 | } | |
310 | ||
3b63d2d3 | 311 | static int dir_cleanup( |
78a92a5a | 312 | Item *i, |
3b63d2d3 LP |
313 | const char *p, |
314 | DIR *d, | |
315 | const struct stat *ds, | |
316 | usec_t cutoff, | |
317 | dev_t rootdev, | |
318 | bool mountpoint, | |
24f3a374 | 319 | int maxdepth, |
265ffa1e LP |
320 | bool keep_this_level) { |
321 | ||
3b63d2d3 LP |
322 | struct dirent *dent; |
323 | struct timespec times[2]; | |
324 | bool deleted = false; | |
3b63d2d3 LP |
325 | int r = 0; |
326 | ||
327 | while ((dent = readdir(d))) { | |
328 | struct stat s; | |
329 | usec_t age; | |
7fd1b19b | 330 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 LP |
331 | |
332 | if (streq(dent->d_name, ".") || | |
333 | streq(dent->d_name, "..")) | |
334 | continue; | |
5008d581 | 335 | |
3b63d2d3 | 336 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
337 | if (errno == ENOENT) |
338 | continue; | |
5008d581 | 339 | |
ca2f4176 KS |
340 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
341 | if (errno == EACCES) | |
56f64d95 | 342 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 343 | else |
56f64d95 | 344 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 345 | r = -errno; |
3b63d2d3 LP |
346 | continue; |
347 | } | |
348 | ||
349 | /* Stay on the same filesystem */ | |
350 | if (s.st_dev != rootdev) | |
351 | continue; | |
352 | ||
99d680ac KS |
353 | /* Try to detect bind mounts of the same filesystem instance; they |
354 | * do not differ in device major/minors. This type of query is not | |
355 | * supported on all kernels or filesystem types though. */ | |
356 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) | |
357 | continue; | |
358 | ||
3b63d2d3 LP |
359 | /* Do not delete read-only files owned by root */ |
360 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) | |
361 | continue; | |
362 | ||
cde684a2 LP |
363 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
364 | if (!sub_path) { | |
0d0f0c50 | 365 | r = log_oom(); |
3b63d2d3 LP |
366 | goto finish; |
367 | } | |
368 | ||
369 | /* Is there an item configured for this path? */ | |
370 | if (hashmap_get(items, sub_path)) | |
371 | continue; | |
372 | ||
b8bb3e8f LP |
373 | if (find_glob(globs, sub_path)) |
374 | continue; | |
375 | ||
3b63d2d3 LP |
376 | if (S_ISDIR(s.st_mode)) { |
377 | ||
378 | if (mountpoint && | |
379 | streq(dent->d_name, "lost+found") && | |
380 | s.st_uid == 0) | |
381 | continue; | |
382 | ||
383 | if (maxdepth <= 0) | |
384 | log_warning("Reached max depth on %s.", sub_path); | |
385 | else { | |
7fd1b19b | 386 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
387 | int q; |
388 | ||
e5f3d1ba | 389 | sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME); |
cde684a2 | 390 | if (!sub_dir) { |
3b63d2d3 | 391 | if (errno != ENOENT) { |
56f64d95 | 392 | log_error_errno(errno, "opendir(%s/%s) failed: %m", p, dent->d_name); |
3b63d2d3 LP |
393 | r = -errno; |
394 | } | |
395 | ||
396 | continue; | |
397 | } | |
398 | ||
78a92a5a | 399 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
400 | if (q < 0) |
401 | r = q; | |
402 | } | |
403 | ||
24f3a374 LP |
404 | /* Note: if you are wondering why we don't |
405 | * support the sticky bit for excluding | |
406 | * directories from cleaning like we do it for | |
407 | * other file system objects: well, the sticky | |
408 | * bit already has a meaning for directories, | |
409 | * so we don't want to overload that. */ | |
410 | ||
411 | if (keep_this_level) | |
412 | continue; | |
413 | ||
3b63d2d3 LP |
414 | /* Ignore ctime, we change it when deleting */ |
415 | age = MAX(timespec_load(&s.st_mtim), | |
416 | timespec_load(&s.st_atim)); | |
417 | if (age >= cutoff) | |
418 | continue; | |
419 | ||
a6187d4c | 420 | if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) { |
9f6445e3 | 421 | log_debug("rmdir '%s'", sub_path); |
3b63d2d3 | 422 | |
78a92a5a MS |
423 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) { |
424 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
56f64d95 | 425 | log_error_errno(errno, "rmdir(%s): %m", sub_path); |
78a92a5a MS |
426 | r = -errno; |
427 | } | |
3b63d2d3 LP |
428 | } |
429 | } | |
430 | ||
431 | } else { | |
9c73736d LP |
432 | /* Skip files for which the sticky bit is |
433 | * set. These are semantics we define, and are | |
434 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
435 | * specification for details. */ | |
436 | if (s.st_mode & S_ISVTX) | |
437 | continue; | |
438 | ||
17b90525 | 439 | if (mountpoint && S_ISREG(s.st_mode)) { |
3b63d2d3 LP |
440 | if (streq(dent->d_name, ".journal") && |
441 | s.st_uid == 0) | |
442 | continue; | |
443 | ||
444 | if (streq(dent->d_name, "aquota.user") || | |
445 | streq(dent->d_name, "aquota.group")) | |
446 | continue; | |
447 | } | |
448 | ||
17b90525 LP |
449 | /* Ignore sockets that are listed in /proc/net/unix */ |
450 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) | |
451 | continue; | |
452 | ||
78ab08eb LP |
453 | /* Ignore device nodes */ |
454 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) | |
455 | continue; | |
456 | ||
24f3a374 LP |
457 | /* Keep files on this level around if this is |
458 | * requested */ | |
459 | if (keep_this_level) | |
460 | continue; | |
461 | ||
3b63d2d3 LP |
462 | age = MAX3(timespec_load(&s.st_mtim), |
463 | timespec_load(&s.st_atim), | |
464 | timespec_load(&s.st_ctim)); | |
465 | ||
466 | if (age >= cutoff) | |
467 | continue; | |
468 | ||
9f6445e3 | 469 | log_debug("unlink '%s'", sub_path); |
3b63d2d3 LP |
470 | |
471 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) { | |
472 | if (errno != ENOENT) { | |
56f64d95 | 473 | log_error_errno(errno, "unlink(%s): %m", sub_path); |
3b63d2d3 LP |
474 | r = -errno; |
475 | } | |
476 | } | |
477 | ||
478 | deleted = true; | |
479 | } | |
480 | } | |
481 | ||
482 | finish: | |
483 | if (deleted) { | |
484 | /* Restore original directory timestamps */ | |
485 | times[0] = ds->st_atim; | |
486 | times[1] = ds->st_mtim; | |
487 | ||
488 | if (futimens(dirfd(d), times) < 0) | |
56f64d95 | 489 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
490 | } |
491 | ||
3b63d2d3 LP |
492 | return r; |
493 | } | |
494 | ||
b705ab6a | 495 | static int path_set_perms(Item *i, const char *path) { |
1924a97d MO |
496 | struct stat st; |
497 | bool st_valid; | |
498 | ||
cde684a2 LP |
499 | assert(i); |
500 | assert(path); | |
501 | ||
1924a97d MO |
502 | st_valid = stat(path, &st) == 0; |
503 | ||
062e01bb | 504 | /* not using i->path directly because it may be a glob */ |
abef3f91 LP |
505 | if (i->mode_set) { |
506 | mode_t m = i->mode; | |
507 | ||
1924a97d MO |
508 | if (i->mask_perms && st_valid) { |
509 | if (!(st.st_mode & 0111)) | |
510 | m &= ~0111; | |
511 | if (!(st.st_mode & 0222)) | |
512 | m &= ~0222; | |
513 | if (!(st.st_mode & 0444)) | |
514 | m &= ~0444; | |
515 | if (!S_ISDIR(st.st_mode)) | |
516 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
abef3f91 LP |
517 | } |
518 | ||
1924a97d | 519 | if (!st_valid || m != (st.st_mode & 07777)) { |
4a62c710 MS |
520 | if (chmod(path, m) < 0) |
521 | return log_error_errno(errno, "chmod(%s) failed: %m", path); | |
062e01bb | 522 | } |
abef3f91 | 523 | } |
062e01bb | 524 | |
1924a97d MO |
525 | if ((!st_valid || (i->uid != st.st_uid || i->gid != st.st_gid)) && |
526 | (i->uid_set || i->gid_set)) | |
062e01bb | 527 | if (chown(path, |
fed1e721 | 528 | i->uid_set ? i->uid : UID_INVALID, |
505ef0e3 | 529 | i->gid_set ? i->gid : GID_INVALID) < 0) |
062e01bb | 530 | |
505ef0e3 | 531 | return log_error_errno(errno, "chown(%s) failed: %m", path); |
062e01bb | 532 | |
9855d6c7 | 533 | return label_fix(path, false, false); |
062e01bb MS |
534 | } |
535 | ||
ebf4e801 MW |
536 | static int get_xattrs_from_arg(Item *i) { |
537 | char *xattr; | |
538 | const char *p; | |
539 | int r; | |
540 | ||
541 | assert(i); | |
505ef0e3 | 542 | assert(i->argument); |
ebf4e801 | 543 | |
ebf4e801 MW |
544 | p = i->argument; |
545 | ||
546 | while ((r = unquote_first_word(&p, &xattr, false)) > 0) { | |
505ef0e3 ZJS |
547 | _cleanup_free_ char *tmp = NULL, *name = NULL, |
548 | *value = NULL, *value2 = NULL, *_xattr = xattr; | |
549 | ||
ebf4e801 MW |
550 | r = split_pair(xattr, "=", &name, &value); |
551 | if (r < 0) { | |
552 | log_warning("Illegal xattr found: \"%s\" - ignoring.", xattr); | |
ebf4e801 MW |
553 | continue; |
554 | } | |
505ef0e3 ZJS |
555 | |
556 | if (strempty(name) || strempty(value)) { | |
557 | log_warning("Malformed xattr found: \"%s\" - ignoring.", xattr); | |
ebf4e801 MW |
558 | continue; |
559 | } | |
505ef0e3 | 560 | |
ebf4e801 MW |
561 | tmp = unquote(value, "\""); |
562 | if (!tmp) | |
563 | return log_oom(); | |
505ef0e3 ZJS |
564 | |
565 | value2 = cunescape(tmp); | |
566 | if (!value2) | |
ebf4e801 | 567 | return log_oom(); |
505ef0e3 ZJS |
568 | |
569 | if (strv_push_pair(&i->xattrs, name, value2) < 0) | |
ebf4e801 | 570 | return log_oom(); |
505ef0e3 | 571 | name = value2 = NULL; |
ebf4e801 MW |
572 | } |
573 | ||
574 | return r; | |
575 | } | |
576 | ||
b705ab6a | 577 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
578 | char **name, **value; |
579 | ||
580 | assert(i); | |
581 | assert(path); | |
582 | ||
ebf4e801 MW |
583 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
584 | int n; | |
505ef0e3 | 585 | |
ebf4e801 MW |
586 | n = strlen(*value); |
587 | if (lsetxattr(path, *name, *value, n, 0) < 0) { | |
505ef0e3 ZJS |
588 | log_error("Setting extended attribute %s=%s on %s failed: %m", |
589 | *name, *value, path); | |
ebf4e801 MW |
590 | return -errno; |
591 | } | |
592 | } | |
593 | return 0; | |
594 | } | |
595 | ||
f8eeeaf9 ZJS |
596 | static int get_acls_from_arg(Item *item) { |
597 | #ifdef HAVE_ACL | |
598 | int r; | |
599 | _cleanup_(acl_freep) acl_t a = NULL, d = NULL; | |
600 | ||
601 | assert(item); | |
602 | ||
50d9e46d ZJS |
603 | /* If force (= modify) is set, we will not modify the acl |
604 | * afterwards, so the mask can be added now if necessary. */ | |
605 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); | |
f8eeeaf9 ZJS |
606 | if (r < 0) |
607 | log_warning_errno(errno, "Failed to parse ACL \"%s\": %m. Ignoring", | |
608 | item->argument); | |
609 | #else | |
610 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
611 | #endif | |
612 | ||
613 | return 0; | |
614 | } | |
615 | ||
50d9e46d | 616 | static int path_set_acl(const char *path, acl_type_t type, acl_t acl, bool modify) { |
dd4105b0 | 617 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
618 | int r; |
619 | ||
620 | if (modify) { | |
dd4105b0 | 621 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
622 | if (r < 0) |
623 | return r; | |
50d9e46d | 624 | |
dd4105b0 ZJS |
625 | r = calc_acl_mask_if_needed(&dup); |
626 | if (r < 0) | |
627 | return r; | |
628 | } else { | |
629 | dup = acl_dup(acl); | |
630 | if (!dup) | |
631 | return -errno; | |
632 | ||
633 | /* the mask was already added earlier if needed */ | |
634 | } | |
635 | ||
636 | r = add_base_acls_if_needed(&dup, path); | |
637 | if (r < 0) | |
638 | return r; | |
639 | ||
640 | r = acl_set_file(path, type, dup); | |
50d9e46d ZJS |
641 | if (r < 0) { |
642 | _cleanup_(acl_free_charpp) char *t; | |
643 | ||
644 | r = -errno; | |
dd4105b0 | 645 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
50d9e46d ZJS |
646 | log_error_errno(r, |
647 | "Setting %s ACL \"%s\" on %s failed: %m", | |
648 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
649 | strna(t), path); | |
650 | } | |
651 | ||
652 | return r; | |
653 | } | |
654 | ||
b705ab6a | 655 | static int path_set_acls(Item *item, const char *path) { |
f8eeeaf9 ZJS |
656 | #ifdef HAVE_ACL |
657 | int r; | |
658 | ||
659 | assert(item); | |
660 | assert(path); | |
661 | ||
662 | if (item->acl_access) { | |
50d9e46d ZJS |
663 | r = path_set_acl(path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
664 | if (r < 0) | |
665 | return r; | |
f8eeeaf9 ZJS |
666 | } |
667 | ||
668 | if (item->acl_default) { | |
50d9e46d ZJS |
669 | r = path_set_acl(path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
670 | if (r < 0) | |
671 | return r; | |
f8eeeaf9 ZJS |
672 | } |
673 | #endif | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
d4e9eb91 | 678 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
679 | _cleanup_close_ int fd = -1; |
680 | int flags, r = 0; | |
d4e9eb91 | 681 | struct stat st; |
d4e9eb91 | 682 | |
874f1947 LP |
683 | assert(i); |
684 | assert(path); | |
685 | ||
43ad6e31 LP |
686 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
687 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 688 | |
43ad6e31 | 689 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 690 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 691 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 692 | mac_selinux_create_file_clear(); |
5c0d398d | 693 | } |
d4e9eb91 DR |
694 | |
695 | if (fd < 0) { | |
696 | if (i->type == WRITE_FILE && errno == ENOENT) | |
697 | return 0; | |
698 | ||
56f64d95 | 699 | log_error_errno(errno, "Failed to create file %s: %m", path); |
d4e9eb91 DR |
700 | return -errno; |
701 | } | |
702 | ||
703 | if (i->argument) { | |
cde684a2 | 704 | _cleanup_free_ char *unescaped; |
d4e9eb91 DR |
705 | ssize_t n; |
706 | size_t l; | |
d4e9eb91 | 707 | |
54693d9b | 708 | unescaped = cunescape(i->argument); |
43ad6e31 | 709 | if (!unescaped) |
54693d9b | 710 | return log_oom(); |
d4e9eb91 | 711 | |
54693d9b DR |
712 | l = strlen(unescaped); |
713 | n = write(fd, unescaped, l); | |
d4e9eb91 | 714 | |
d4e9eb91 DR |
715 | if (n < 0 || (size_t) n < l) { |
716 | log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write"); | |
d4e9eb91 DR |
717 | return n < 0 ? n : -EIO; |
718 | } | |
719 | } | |
720 | ||
43ad6e31 | 721 | fd = safe_close(fd); |
3612fbc1 | 722 | |
4a62c710 MS |
723 | if (stat(path, &st) < 0) |
724 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 DR |
725 | |
726 | if (!S_ISREG(st.st_mode)) { | |
727 | log_error("%s is not a file.", path); | |
728 | return -EEXIST; | |
729 | } | |
730 | ||
b705ab6a | 731 | r = path_set_perms(i, path); |
d4e9eb91 DR |
732 | if (r < 0) |
733 | return r; | |
734 | ||
735 | return 0; | |
736 | } | |
737 | ||
081043cf ZJS |
738 | typedef int (*action_t)(Item *, const char *); |
739 | ||
740 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 741 | _cleanup_closedir_ DIR *d; |
e73a03e0 LP |
742 | int r = 0; |
743 | ||
744 | assert(i); | |
745 | assert(path); | |
a8d88783 MS |
746 | |
747 | /* This returns the first error we run into, but nevertheless | |
748 | * tries to go on */ | |
749 | ||
750 | d = opendir(path); | |
751 | if (!d) | |
e73a03e0 | 752 | return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
a8d88783 MS |
753 | |
754 | for (;;) { | |
e73a03e0 | 755 | _cleanup_free_ char *p = NULL; |
7d5e9c0f | 756 | struct dirent *de; |
e73a03e0 | 757 | int q; |
a8d88783 | 758 | |
d78096b3 FW |
759 | errno = 0; |
760 | de = readdir(d); | |
e73a03e0 LP |
761 | if (!de) { |
762 | if (errno != 0 && r == 0) | |
763 | r = -errno; | |
a8d88783 | 764 | |
a8d88783 | 765 | break; |
e73a03e0 | 766 | } |
a8d88783 MS |
767 | |
768 | if (streq(de->d_name, ".") || streq(de->d_name, "..")) | |
769 | continue; | |
770 | ||
e73a03e0 LP |
771 | p = strjoin(path, "/", de->d_name, NULL); |
772 | if (!p) | |
773 | return -ENOMEM; | |
a8d88783 | 774 | |
081043cf | 775 | q = action(i, p); |
e73a03e0 LP |
776 | if (q < 0 && q != -ENOENT && r == 0) |
777 | r = q; | |
a8d88783 | 778 | |
e73a03e0 | 779 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 780 | q = item_do_children(i, p, action); |
e73a03e0 LP |
781 | if (q < 0 && r == 0) |
782 | r = q; | |
a8d88783 | 783 | } |
a8d88783 MS |
784 | } |
785 | ||
e73a03e0 | 786 | return r; |
a8d88783 MS |
787 | } |
788 | ||
081043cf | 789 | static int glob_item(Item *i, action_t action, bool recursive) { |
7fd1b19b | 790 | _cleanup_globfree_ glob_t g = {}; |
e73a03e0 | 791 | int r = 0, k; |
99e68c0b MS |
792 | char **fn; |
793 | ||
99e68c0b | 794 | errno = 0; |
c84a9488 | 795 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g); |
081043cf ZJS |
796 | if (k != 0 && k != GLOB_NOMATCH) |
797 | return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); | |
99e68c0b | 798 | |
c84a9488 ZJS |
799 | STRV_FOREACH(fn, g.gl_pathv) { |
800 | k = action(i, *fn); | |
e73a03e0 | 801 | if (k < 0 && r == 0) |
99e68c0b | 802 | r = k; |
081043cf ZJS |
803 | |
804 | if (recursive) { | |
805 | k = item_do_children(i, *fn, action); | |
806 | if (k < 0 && r == 0) | |
807 | r = k; | |
808 | } | |
c84a9488 | 809 | } |
99e68c0b | 810 | |
99e68c0b MS |
811 | return r; |
812 | } | |
813 | ||
3b63d2d3 | 814 | static int create_item(Item *i) { |
3b63d2d3 | 815 | struct stat st; |
df28bc08 | 816 | int r = 0; |
5008d581 | 817 | |
3b63d2d3 | 818 | assert(i); |
5008d581 | 819 | |
3b63d2d3 LP |
820 | switch (i->type) { |
821 | ||
822 | case IGNORE_PATH: | |
78a92a5a | 823 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
824 | case REMOVE_PATH: |
825 | case RECURSIVE_REMOVE_PATH: | |
826 | return 0; | |
5008d581 | 827 | |
3b63d2d3 | 828 | case CREATE_FILE: |
31ed59c5 | 829 | case TRUNCATE_FILE: |
1845fdd9 DR |
830 | r = write_one_file(i, i->path); |
831 | if (r < 0) | |
832 | return r; | |
833 | break; | |
265ffa1e | 834 | |
849958d1 | 835 | case COPY_FILES: |
e156347e | 836 | r = copy_tree(i->argument, i->path, false); |
849958d1 | 837 | if (r < 0) { |
e156347e LP |
838 | struct stat a, b; |
839 | ||
8d3d7072 MS |
840 | if (r != -EEXIST) |
841 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 842 | |
4a62c710 MS |
843 | if (stat(i->argument, &a) < 0) |
844 | return log_error_errno(errno, "stat(%s) failed: %m", i->argument); | |
e156347e | 845 | |
4a62c710 MS |
846 | if (stat(i->path, &b) < 0) |
847 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
848 | |
849 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
850 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
851 | return 0; | |
852 | } | |
849958d1 LP |
853 | } |
854 | ||
b705ab6a | 855 | r = path_set_perms(i, i->path); |
849958d1 LP |
856 | if (r < 0) |
857 | return r; | |
858 | ||
859 | break; | |
860 | ||
d4e9eb91 | 861 | case WRITE_FILE: |
081043cf | 862 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
863 | if (r < 0) |
864 | return r; | |
5008d581 | 865 | |
3b63d2d3 LP |
866 | break; |
867 | ||
3b63d2d3 | 868 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
869 | case TRUNCATE_DIRECTORY: |
870 | case CREATE_SUBVOLUME: | |
5008d581 | 871 | |
d7b8eec7 | 872 | RUN_WITH_UMASK(0000) |
5c0d398d | 873 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 LP |
874 | |
875 | if (i->type == CREATE_SUBVOLUME) { | |
876 | RUN_WITH_UMASK((~i->mode) & 0777) | |
877 | r = btrfs_subvol_make(i->path); | |
878 | } else | |
879 | r = 0; | |
880 | ||
505ef0e3 | 881 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) { |
d7b8eec7 LP |
882 | RUN_WITH_UMASK(0000) |
883 | r = mkdir_label(i->path, i->mode); | |
5c0d398d | 884 | } |
5008d581 | 885 | |
e156347e | 886 | if (r < 0) { |
f647962d | 887 | if (r != -EEXIST) |
d7b8eec7 | 888 | return log_error_errno(r, "Failed to create directory or subvolume %s: %m", i->path); |
5008d581 | 889 | |
4a62c710 MS |
890 | if (stat(i->path, &st) < 0) |
891 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
5008d581 | 892 | |
e156347e LP |
893 | if (!S_ISDIR(st.st_mode)) { |
894 | log_debug("%s already exists and is not a directory.", i->path); | |
895 | return 0; | |
896 | } | |
5008d581 LP |
897 | } |
898 | ||
b705ab6a | 899 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
900 | if (r < 0) |
901 | return r; | |
3b63d2d3 LP |
902 | |
903 | break; | |
ee17ee7c LP |
904 | |
905 | case CREATE_FIFO: | |
906 | ||
5c0d398d | 907 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 908 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 909 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 910 | mac_selinux_create_file_clear(); |
5c0d398d | 911 | } |
ee17ee7c | 912 | |
1554afae | 913 | if (r < 0) { |
4a62c710 MS |
914 | if (errno != EEXIST) |
915 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 916 | |
4a62c710 MS |
917 | if (stat(i->path, &st) < 0) |
918 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
ee17ee7c | 919 | |
1554afae LP |
920 | if (!S_ISFIFO(st.st_mode)) { |
921 | ||
922 | if (i->force) { | |
923 | ||
924 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 925 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 926 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 927 | mac_selinux_create_file_clear(); |
1554afae LP |
928 | } |
929 | ||
f647962d MS |
930 | if (r < 0) |
931 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
1554afae LP |
932 | } else { |
933 | log_debug("%s is not a fifo.", i->path); | |
934 | return 0; | |
935 | } | |
936 | } | |
ee17ee7c LP |
937 | } |
938 | ||
b705ab6a | 939 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
940 | if (r < 0) |
941 | return r; | |
ee17ee7c LP |
942 | |
943 | break; | |
a8d88783 | 944 | |
2e78fa79 | 945 | case CREATE_SYMLINK: |
468d726b | 946 | |
ecabcf8b | 947 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
468d726b | 948 | r = symlink(i->argument, i->path); |
ecabcf8b | 949 | mac_selinux_create_file_clear(); |
e9a5ef7c | 950 | |
468d726b | 951 | if (r < 0) { |
2e78fa79 | 952 | _cleanup_free_ char *x = NULL; |
468d726b | 953 | |
4a62c710 MS |
954 | if (errno != EEXIST) |
955 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", i->argument, i->path); | |
2e78fa79 LP |
956 | |
957 | r = readlink_malloc(i->path, &x); | |
958 | if (r < 0 || !streq(i->argument, x)) { | |
959 | ||
960 | if (i->force) { | |
ecabcf8b | 961 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
2e78fa79 | 962 | r = symlink_atomic(i->argument, i->path); |
ecabcf8b | 963 | mac_selinux_create_file_clear(); |
2e78fa79 | 964 | |
f647962d MS |
965 | if (r < 0) |
966 | return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path); | |
1554afae | 967 | } else { |
2e78fa79 | 968 | log_debug("%s is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
969 | return 0; |
970 | } | |
2e78fa79 | 971 | } |
468d726b LP |
972 | } |
973 | ||
468d726b | 974 | break; |
468d726b LP |
975 | |
976 | case CREATE_BLOCK_DEVICE: | |
977 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
978 | mode_t file_type; |
979 | ||
980 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
981 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 982 | shouldn't attempt to create the device node in |
cb7ed9df LP |
983 | that case to avoid noise, and we don't support |
984 | virtualized devices in containers anyway. */ | |
985 | ||
986 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
987 | return 0; | |
988 | } | |
989 | ||
1554afae | 990 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 991 | |
5c0d398d | 992 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 993 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 994 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 995 | mac_selinux_create_file_clear(); |
5c0d398d | 996 | } |
468d726b | 997 | |
6555ad8e KS |
998 | if (r < 0) { |
999 | if (errno == EPERM) { | |
1000 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1001 | "skipping creation of device node %s.", i->path); | |
1002 | return 0; | |
1003 | } | |
1004 | ||
4a62c710 MS |
1005 | if (errno != EEXIST) |
1006 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1007 | |
4a62c710 MS |
1008 | if (stat(i->path, &st) < 0) |
1009 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
468d726b | 1010 | |
1554afae LP |
1011 | if ((st.st_mode & S_IFMT) != file_type) { |
1012 | ||
1013 | if (i->force) { | |
1014 | ||
1015 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1016 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1017 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1018 | mac_selinux_create_file_clear(); |
1554afae LP |
1019 | } |
1020 | ||
f647962d MS |
1021 | if (r < 0) |
1022 | return log_error_errno(r, "Failed to create device node %s: %m", i->path); | |
1554afae LP |
1023 | } else { |
1024 | log_debug("%s is not a device node.", i->path); | |
1025 | return 0; | |
1026 | } | |
1027 | } | |
468d726b LP |
1028 | } |
1029 | ||
b705ab6a | 1030 | r = path_set_perms(i, i->path); |
468d726b LP |
1031 | if (r < 0) |
1032 | return r; | |
1033 | ||
1034 | break; | |
1035 | } | |
1036 | ||
e73a03e0 | 1037 | case ADJUST_MODE: |
777b87e7 | 1038 | case RELABEL_PATH: |
b705ab6a | 1039 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1040 | if (r < 0) |
96ca8194 | 1041 | return r; |
777b87e7 MS |
1042 | break; |
1043 | ||
a8d88783 | 1044 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1045 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1046 | if (r < 0) |
1047 | return r; | |
ebf4e801 | 1048 | break; |
e73a03e0 | 1049 | |
ebf4e801 | 1050 | case SET_XATTR: |
b705ab6a ZJS |
1051 | r = glob_item(i, path_set_xattrs, false); |
1052 | if (r < 0) | |
1053 | return r; | |
1054 | break; | |
1055 | ||
1056 | case RECURSIVE_SET_XATTR: | |
1057 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1058 | if (r < 0) |
1059 | return r; | |
e73a03e0 | 1060 | break; |
f8eeeaf9 ZJS |
1061 | |
1062 | case SET_ACL: | |
b705ab6a | 1063 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1064 | if (r < 0) |
1065 | return r; | |
b705ab6a ZJS |
1066 | break; |
1067 | ||
1068 | case RECURSIVE_SET_ACL: | |
1069 | r = glob_item(i, path_set_acls, true); | |
1070 | if (r < 0) | |
1071 | return r; | |
1072 | break; | |
3b63d2d3 LP |
1073 | } |
1074 | ||
3b63d2d3 LP |
1075 | log_debug("%s created successfully.", i->path); |
1076 | ||
f05bc3f7 | 1077 | return 0; |
3b63d2d3 LP |
1078 | } |
1079 | ||
a0896123 | 1080 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1081 | int r; |
1082 | ||
1083 | assert(i); | |
1084 | ||
1085 | switch (i->type) { | |
1086 | ||
1087 | case CREATE_FILE: | |
1088 | case TRUNCATE_FILE: | |
1089 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1090 | case CREATE_SUBVOLUME: |
ee17ee7c | 1091 | case CREATE_FIFO: |
468d726b LP |
1092 | case CREATE_SYMLINK: |
1093 | case CREATE_BLOCK_DEVICE: | |
1094 | case CREATE_CHAR_DEVICE: | |
3b63d2d3 | 1095 | case IGNORE_PATH: |
78a92a5a | 1096 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1097 | case ADJUST_MODE: |
777b87e7 | 1098 | case RELABEL_PATH: |
a8d88783 | 1099 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1100 | case WRITE_FILE: |
849958d1 | 1101 | case COPY_FILES: |
ebf4e801 | 1102 | case SET_XATTR: |
b705ab6a | 1103 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1104 | case SET_ACL: |
b705ab6a | 1105 | case RECURSIVE_SET_ACL: |
3b63d2d3 LP |
1106 | break; |
1107 | ||
1108 | case REMOVE_PATH: | |
4a62c710 | 1109 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1110 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1111 | |
1112 | break; | |
1113 | ||
1114 | case TRUNCATE_DIRECTORY: | |
1115 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1116 | /* FIXME: we probably should use dir_cleanup() here |
1117 | * instead of rm_rf() so that 'x' is honoured. */ | |
f56d5db9 | 1118 | r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false); |
f647962d MS |
1119 | if (r < 0 && r != -ENOENT) |
1120 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1121 | |
1122 | break; | |
1123 | } | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
a0896123 | 1128 | static int remove_item(Item *i) { |
99e68c0b MS |
1129 | int r = 0; |
1130 | ||
b8bb3e8f LP |
1131 | assert(i); |
1132 | ||
1133 | switch (i->type) { | |
1134 | ||
1135 | case CREATE_FILE: | |
1136 | case TRUNCATE_FILE: | |
1137 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1138 | case CREATE_SUBVOLUME: |
ee17ee7c | 1139 | case CREATE_FIFO: |
468d726b LP |
1140 | case CREATE_SYMLINK: |
1141 | case CREATE_CHAR_DEVICE: | |
1142 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 1143 | case IGNORE_PATH: |
78a92a5a | 1144 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1145 | case ADJUST_MODE: |
777b87e7 | 1146 | case RELABEL_PATH: |
a8d88783 | 1147 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1148 | case WRITE_FILE: |
849958d1 | 1149 | case COPY_FILES: |
ebf4e801 | 1150 | case SET_XATTR: |
b705ab6a | 1151 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1152 | case SET_ACL: |
b705ab6a | 1153 | case RECURSIVE_SET_ACL: |
b8bb3e8f LP |
1154 | break; |
1155 | ||
1156 | case REMOVE_PATH: | |
1157 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1158 | case RECURSIVE_REMOVE_PATH: |
081043cf | 1159 | r = glob_item(i, remove_item_instance, false); |
99e68c0b | 1160 | break; |
b8bb3e8f LP |
1161 | } |
1162 | ||
99e68c0b | 1163 | return r; |
b8bb3e8f LP |
1164 | } |
1165 | ||
78a92a5a | 1166 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1167 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1168 | struct stat s, ps; |
1169 | bool mountpoint; | |
1170 | int r; | |
1171 | usec_t cutoff, n; | |
1172 | ||
1173 | assert(i); | |
1174 | ||
1175 | if (!i->age_set) | |
1176 | return 0; | |
1177 | ||
1178 | n = now(CLOCK_REALTIME); | |
1179 | if (n < i->age) | |
1180 | return 0; | |
1181 | ||
1182 | cutoff = n - i->age; | |
1183 | ||
1184 | d = opendir(instance); | |
1185 | if (!d) { | |
1186 | if (errno == ENOENT || errno == ENOTDIR) | |
1187 | return 0; | |
1188 | ||
56f64d95 | 1189 | log_error_errno(errno, "Failed to open directory %s: %m", i->path); |
78a92a5a MS |
1190 | return -errno; |
1191 | } | |
1192 | ||
4a62c710 MS |
1193 | if (fstat(dirfd(d), &s) < 0) |
1194 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1195 | |
1196 | if (!S_ISDIR(s.st_mode)) { | |
1197 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1198 | return -ENOTDIR; |
78a92a5a MS |
1199 | } |
1200 | ||
4a62c710 MS |
1201 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1202 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a MS |
1203 | |
1204 | mountpoint = s.st_dev != ps.st_dev || | |
1205 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
1206 | ||
19fbec19 ZJS |
1207 | r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, |
1208 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1209 | return r; |
1210 | } | |
1211 | ||
1212 | static int clean_item(Item *i) { | |
1213 | int r = 0; | |
1214 | ||
1215 | assert(i); | |
1216 | ||
1217 | switch (i->type) { | |
1218 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1219 | case CREATE_SUBVOLUME: |
78a92a5a MS |
1220 | case TRUNCATE_DIRECTORY: |
1221 | case IGNORE_PATH: | |
849958d1 | 1222 | case COPY_FILES: |
78a92a5a MS |
1223 | clean_item_instance(i, i->path); |
1224 | break; | |
1225 | case IGNORE_DIRECTORY_PATH: | |
081043cf | 1226 | r = glob_item(i, clean_item_instance, false); |
78a92a5a MS |
1227 | break; |
1228 | default: | |
1229 | break; | |
1230 | } | |
1231 | ||
1232 | return r; | |
1233 | } | |
1234 | ||
3f93da98 ZJS |
1235 | static int process_item_array(ItemArray *array); |
1236 | ||
3b63d2d3 | 1237 | static int process_item(Item *i) { |
1e95893a | 1238 | int r, q, p, t = 0; |
9348f0e6 | 1239 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1240 | |
1241 | assert(i); | |
1242 | ||
1910cd0e LP |
1243 | if (i->done) |
1244 | return 0; | |
1245 | ||
1246 | i->done = true; | |
1247 | ||
9348f0e6 ZJS |
1248 | prefix = malloc(strlen(i->path) + 1); |
1249 | if (!prefix) | |
1250 | return log_oom(); | |
1251 | ||
1910cd0e | 1252 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1253 | ItemArray *j; |
1910cd0e LP |
1254 | |
1255 | j = hashmap_get(items, prefix); | |
1db50423 ZJS |
1256 | if (j) { |
1257 | int s; | |
1258 | ||
3f93da98 | 1259 | s = process_item_array(j); |
1db50423 ZJS |
1260 | if (s < 0 && t == 0) |
1261 | t = s; | |
1262 | } | |
1910cd0e LP |
1263 | } |
1264 | ||
3b63d2d3 | 1265 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1266 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1267 | p = arg_clean ? clean_item(i) : 0; |
1268 | ||
1db50423 ZJS |
1269 | return t < 0 ? t : |
1270 | r < 0 ? r : | |
1271 | q < 0 ? q : | |
1272 | p; | |
3b63d2d3 LP |
1273 | } |
1274 | ||
3f93da98 ZJS |
1275 | static int process_item_array(ItemArray *array) { |
1276 | unsigned n; | |
1277 | int r = 0, k; | |
753615e8 | 1278 | |
3f93da98 ZJS |
1279 | assert(array); |
1280 | ||
1281 | for (n = 0; n < array->count; n++) { | |
1282 | k = process_item(array->items + n); | |
1283 | if (k < 0 && r == 0) | |
1284 | r = k; | |
1285 | } | |
1286 | ||
1287 | return r; | |
1288 | } | |
3b63d2d3 | 1289 | |
3f93da98 ZJS |
1290 | static void item_free_contents(Item *i) { |
1291 | assert(i); | |
3b63d2d3 | 1292 | free(i->path); |
468d726b | 1293 | free(i->argument); |
ebf4e801 | 1294 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1295 | |
1296 | #ifdef HAVE_ACL | |
1297 | acl_free(i->acl_access); | |
1298 | acl_free(i->acl_default); | |
1299 | #endif | |
3b63d2d3 LP |
1300 | } |
1301 | ||
3f93da98 ZJS |
1302 | static void item_array_free(ItemArray *a) { |
1303 | unsigned n; | |
1304 | ||
1305 | if (!a) | |
1306 | return; | |
1307 | ||
1308 | for (n = 0; n < a->count; n++) | |
1309 | item_free_contents(a->items + n); | |
1310 | free(a->items); | |
1311 | free(a); | |
1312 | } | |
e2f2fb78 | 1313 | |
3f93da98 | 1314 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1315 | assert(a); |
1316 | assert(b); | |
3f93da98 | 1317 | assert(streq(a->path, b->path)); |
bfe95f35 | 1318 | |
3f93da98 ZJS |
1319 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1320 | /* check if the items are the same */ | |
1321 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1322 | |
3f93da98 ZJS |
1323 | a->uid_set == b->uid_set && |
1324 | a->uid == b->uid && | |
bfe95f35 | 1325 | |
3f93da98 ZJS |
1326 | a->gid_set == b->gid_set && |
1327 | a->gid == b->gid && | |
bfe95f35 | 1328 | |
3f93da98 ZJS |
1329 | a->mode_set == b->mode_set && |
1330 | a->mode == b->mode && | |
bfe95f35 | 1331 | |
3f93da98 ZJS |
1332 | a->age_set == b->age_set && |
1333 | a->age == b->age && | |
bfe95f35 | 1334 | |
3f93da98 | 1335 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1336 | |
3f93da98 | 1337 | a->keep_first_level == b->keep_first_level && |
468d726b | 1338 | |
3f93da98 | 1339 | a->major_minor == b->major_minor; |
468d726b | 1340 | |
bfe95f35 LP |
1341 | return true; |
1342 | } | |
1343 | ||
a2aced4a DR |
1344 | static bool should_include_path(const char *path) { |
1345 | char **prefix; | |
1346 | ||
abef3f91 | 1347 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
5c795114 DR |
1348 | if (path_startswith(path, *prefix)) |
1349 | return false; | |
a2aced4a | 1350 | |
abef3f91 | 1351 | STRV_FOREACH(prefix, arg_include_prefixes) |
a2aced4a DR |
1352 | if (path_startswith(path, *prefix)) |
1353 | return true; | |
a2aced4a | 1354 | |
5c795114 DR |
1355 | /* no matches, so we should include this path only if we |
1356 | * have no whitelist at all */ | |
7bc040fa | 1357 | return strv_length(arg_include_prefixes) == 0; |
a2aced4a DR |
1358 | } |
1359 | ||
fba6e687 | 1360 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a LP |
1361 | |
1362 | static const Specifier specifier_table[] = { | |
1363 | { 'm', specifier_machine_id, NULL }, | |
1364 | { 'b', specifier_boot_id, NULL }, | |
1365 | { 'H', specifier_host_name, NULL }, | |
1366 | { 'v', specifier_kernel_release, NULL }, | |
1367 | {} | |
1368 | }; | |
1369 | ||
cde684a2 | 1370 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1371 | _cleanup_(item_free_contents) Item i = {}; |
1372 | ItemArray *existing; | |
bfe95f35 | 1373 | Hashmap *h; |
3f93da98 | 1374 | int r, c = -1, pos; |
5f255144 | 1375 | bool force = false, boot = false; |
3b63d2d3 LP |
1376 | |
1377 | assert(fname); | |
1378 | assert(line >= 1); | |
1379 | assert(buffer); | |
1380 | ||
19fbec19 | 1381 | r = sscanf(buffer, |
c4708f13 ZJS |
1382 | "%ms %ms %ms %ms %ms %ms %n", |
1383 | &action, | |
1731e34a | 1384 | &path, |
bd40a2d8 LP |
1385 | &mode, |
1386 | &user, | |
1387 | &group, | |
468d726b | 1388 | &age, |
3f93da98 | 1389 | &c); |
19fbec19 | 1390 | if (r < 2) { |
3b63d2d3 | 1391 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1392 | return -EIO; |
5008d581 LP |
1393 | } |
1394 | ||
2e78fa79 LP |
1395 | if (isempty(action)) { |
1396 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1397 | return -EINVAL; |
2e78fa79 LP |
1398 | } |
1399 | ||
5f255144 ZJS |
1400 | for (pos = 1; action[pos]; pos++) { |
1401 | if (action[pos] == '!' && !boot) | |
1402 | boot = true; | |
1403 | else if (action[pos] == '+' && !force) | |
1404 | force = true; | |
1405 | else { | |
1406 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1407 | fname, line, action); | |
1408 | return -EINVAL; | |
1409 | } | |
2e78fa79 LP |
1410 | } |
1411 | ||
5f255144 | 1412 | if (boot && !arg_boot) |
c4708f13 ZJS |
1413 | return 0; |
1414 | ||
3f93da98 ZJS |
1415 | i.type = action[0]; |
1416 | i.force = force; | |
2e78fa79 | 1417 | |
3f93da98 | 1418 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1419 | if (r < 0) { |
1420 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1421 | return r; | |
1422 | } | |
1423 | ||
3f93da98 ZJS |
1424 | if (c >= 0) { |
1425 | c += strspn(buffer+c, WHITESPACE); | |
1426 | if (buffer[c] != 0 && (buffer[c] != '-' || buffer[c+1] != 0)) { | |
1427 | i.argument = unquote(buffer+c, "\""); | |
1428 | if (!i.argument) | |
0d0f0c50 | 1429 | return log_oom(); |
31ed59c5 LP |
1430 | } |
1431 | } | |
1432 | ||
3f93da98 | 1433 | switch (i.type) { |
468d726b | 1434 | |
777b87e7 MS |
1435 | case CREATE_FILE: |
1436 | case TRUNCATE_FILE: | |
1437 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1438 | case CREATE_SUBVOLUME: |
777b87e7 MS |
1439 | case TRUNCATE_DIRECTORY: |
1440 | case CREATE_FIFO: | |
1441 | case IGNORE_PATH: | |
78a92a5a | 1442 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1443 | case REMOVE_PATH: |
1444 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1445 | case ADJUST_MODE: |
777b87e7 MS |
1446 | case RELABEL_PATH: |
1447 | case RECURSIVE_RELABEL_PATH: | |
1448 | break; | |
468d726b LP |
1449 | |
1450 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1451 | if (!i.argument) { |
1452 | i.argument = strappend("/usr/share/factory/", i.path); | |
1453 | if (!i.argument) | |
2f3b873a | 1454 | return log_oom(); |
468d726b LP |
1455 | } |
1456 | break; | |
1457 | ||
31ed59c5 | 1458 | case WRITE_FILE: |
3f93da98 | 1459 | if (!i.argument) { |
31ed59c5 | 1460 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1461 | return -EBADMSG; |
31ed59c5 LP |
1462 | } |
1463 | break; | |
1464 | ||
849958d1 | 1465 | case COPY_FILES: |
3f93da98 ZJS |
1466 | if (!i.argument) { |
1467 | i.argument = strappend("/usr/share/factory/", i.path); | |
1468 | if (!i.argument) | |
2f3b873a | 1469 | return log_oom(); |
3f93da98 | 1470 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1471 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1472 | return -EBADMSG; | |
1473 | } | |
1474 | ||
3f93da98 | 1475 | path_kill_slashes(i.argument); |
849958d1 LP |
1476 | break; |
1477 | ||
468d726b LP |
1478 | case CREATE_CHAR_DEVICE: |
1479 | case CREATE_BLOCK_DEVICE: { | |
1480 | unsigned major, minor; | |
1481 | ||
3f93da98 | 1482 | if (!i.argument) { |
468d726b | 1483 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1484 | return -EBADMSG; |
468d726b LP |
1485 | } |
1486 | ||
3f93da98 ZJS |
1487 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1488 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1489 | return -EBADMSG; |
468d726b LP |
1490 | } |
1491 | ||
3f93da98 | 1492 | i.major_minor = makedev(major, minor); |
468d726b LP |
1493 | break; |
1494 | } | |
1495 | ||
ebf4e801 | 1496 | case SET_XATTR: |
b705ab6a | 1497 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1498 | if (!i.argument) { |
ebf4e801 MW |
1499 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1500 | return -EBADMSG; | |
1501 | } | |
3f93da98 | 1502 | r = get_xattrs_from_arg(&i); |
ebf4e801 MW |
1503 | if (r < 0) |
1504 | return r; | |
1505 | break; | |
1506 | ||
f8eeeaf9 | 1507 | case SET_ACL: |
b705ab6a | 1508 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1509 | if (!i.argument) { |
1510 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1511 | return -EBADMSG; | |
1512 | } | |
1513 | r = get_acls_from_arg(&i); | |
1514 | if (r < 0) | |
1515 | return r; | |
1516 | break; | |
1517 | ||
777b87e7 | 1518 | default: |
3f93da98 | 1519 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, i.type); |
7f2c1f4d | 1520 | return -EBADMSG; |
3b63d2d3 | 1521 | } |
468d726b | 1522 | |
3f93da98 ZJS |
1523 | if (!path_is_absolute(i.path)) { |
1524 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1525 | return -EBADMSG; |
3b63d2d3 LP |
1526 | } |
1527 | ||
3f93da98 | 1528 | path_kill_slashes(i.path); |
3b63d2d3 | 1529 | |
3f93da98 | 1530 | if (!should_include_path(i.path)) |
7f2c1f4d | 1531 | return 0; |
5008d581 | 1532 | |
cf9a4abd | 1533 | if (arg_root) { |
cde684a2 LP |
1534 | char *p; |
1535 | ||
3f93da98 | 1536 | p = strappend(arg_root, i.path); |
cf9a4abd MM |
1537 | if (!p) |
1538 | return log_oom(); | |
1539 | ||
3f93da98 ZJS |
1540 | free(i.path); |
1541 | i.path = p; | |
cf9a4abd MM |
1542 | } |
1543 | ||
3b63d2d3 | 1544 | if (user && !streq(user, "-")) { |
4b67834e LP |
1545 | const char *u = user; |
1546 | ||
3f93da98 | 1547 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 1548 | if (r < 0) { |
3b63d2d3 | 1549 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1550 | return r; |
3b63d2d3 LP |
1551 | } |
1552 | ||
3f93da98 | 1553 | i.uid_set = true; |
3b63d2d3 LP |
1554 | } |
1555 | ||
1556 | if (group && !streq(group, "-")) { | |
4b67834e LP |
1557 | const char *g = group; |
1558 | ||
3f93da98 | 1559 | r = get_group_creds(&g, &i.gid); |
4b67834e | 1560 | if (r < 0) { |
3b63d2d3 | 1561 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1562 | return r; |
3b63d2d3 LP |
1563 | } |
1564 | ||
3f93da98 | 1565 | i.gid_set = true; |
3b63d2d3 LP |
1566 | } |
1567 | ||
1568 | if (mode && !streq(mode, "-")) { | |
abef3f91 | 1569 | const char *mm = mode; |
3b63d2d3 LP |
1570 | unsigned m; |
1571 | ||
abef3f91 | 1572 | if (*mm == '~') { |
3f93da98 | 1573 | i.mask_perms = true; |
abef3f91 LP |
1574 | mm++; |
1575 | } | |
1576 | ||
1577 | if (sscanf(mm, "%o", &m) != 1) { | |
3b63d2d3 | 1578 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
7f2c1f4d | 1579 | return -ENOENT; |
3b63d2d3 LP |
1580 | } |
1581 | ||
3f93da98 ZJS |
1582 | i.mode = m; |
1583 | i.mode_set = true; | |
3b63d2d3 | 1584 | } else |
3f93da98 ZJS |
1585 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, CREATE_SUBVOLUME, TRUNCATE_DIRECTORY) |
1586 | ? 0755 : 0644; | |
3b63d2d3 LP |
1587 | |
1588 | if (age && !streq(age, "-")) { | |
24f3a374 LP |
1589 | const char *a = age; |
1590 | ||
1591 | if (*a == '~') { | |
3f93da98 | 1592 | i.keep_first_level = true; |
24f3a374 LP |
1593 | a++; |
1594 | } | |
1595 | ||
3f93da98 | 1596 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 1597 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 1598 | return -EBADMSG; |
3b63d2d3 LP |
1599 | } |
1600 | ||
3f93da98 | 1601 | i.age_set = true; |
3b63d2d3 LP |
1602 | } |
1603 | ||
3f93da98 | 1604 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 1605 | |
3f93da98 | 1606 | existing = hashmap_get(h, i.path); |
468d726b | 1607 | if (existing) { |
3f93da98 ZJS |
1608 | unsigned n; |
1609 | ||
1610 | for (n = 0; n < existing->count; n++) { | |
1611 | if (!item_compatible(existing->items + n, &i)) | |
505ef0e3 | 1612 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 1613 | fname, line, i.path); |
ebf4e801 MW |
1614 | } |
1615 | } else { | |
3f93da98 ZJS |
1616 | existing = new0(ItemArray, 1); |
1617 | r = hashmap_put(h, i.path, existing); | |
1618 | if (r < 0) | |
1619 | return log_oom(); | |
bfe95f35 LP |
1620 | } |
1621 | ||
3f93da98 ZJS |
1622 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
1623 | return log_oom(); | |
5008d581 | 1624 | |
3f93da98 ZJS |
1625 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
1626 | zero(i); | |
7f2c1f4d | 1627 | return 0; |
5008d581 LP |
1628 | } |
1629 | ||
601185b4 | 1630 | static void help(void) { |
522d4a49 LP |
1631 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
1632 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 1633 | " -h --help Show this help\n" |
eb9da376 | 1634 | " --version Show package version\n" |
5c795114 DR |
1635 | " --create Create marked files/directories\n" |
1636 | " --clean Clean up marked directories\n" | |
1637 | " --remove Remove marked files/directories\n" | |
81815651 | 1638 | " --boot Execute actions only safe at boot\n" |
5c795114 | 1639 | " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n" |
cf9a4abd MM |
1640 | " --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n" |
1641 | " --root=PATH Operate on an alternate filesystem root\n", | |
3b63d2d3 | 1642 | program_invocation_short_name); |
3b63d2d3 LP |
1643 | } |
1644 | ||
1645 | static int parse_argv(int argc, char *argv[]) { | |
1646 | ||
1647 | enum { | |
eb9da376 | 1648 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
1649 | ARG_CREATE, |
1650 | ARG_CLEAN, | |
fba6e687 | 1651 | ARG_REMOVE, |
81815651 | 1652 | ARG_BOOT, |
5c795114 DR |
1653 | ARG_PREFIX, |
1654 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 1655 | ARG_ROOT, |
3b63d2d3 LP |
1656 | }; |
1657 | ||
1658 | static const struct option options[] = { | |
5c795114 | 1659 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 1660 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
1661 | { "create", no_argument, NULL, ARG_CREATE }, |
1662 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
1663 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 1664 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
1665 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
1666 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 1667 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 1668 | {} |
3b63d2d3 LP |
1669 | }; |
1670 | ||
1671 | int c; | |
1672 | ||
1673 | assert(argc >= 0); | |
1674 | assert(argv); | |
1675 | ||
601185b4 | 1676 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
1677 | |
1678 | switch (c) { | |
1679 | ||
1680 | case 'h': | |
601185b4 ZJS |
1681 | help(); |
1682 | return 0; | |
eb9da376 LP |
1683 | |
1684 | case ARG_VERSION: | |
1685 | puts(PACKAGE_STRING); | |
1686 | puts(SYSTEMD_FEATURES); | |
3b63d2d3 LP |
1687 | return 0; |
1688 | ||
1689 | case ARG_CREATE: | |
1690 | arg_create = true; | |
1691 | break; | |
1692 | ||
1693 | case ARG_CLEAN: | |
1694 | arg_clean = true; | |
1695 | break; | |
1696 | ||
1697 | case ARG_REMOVE: | |
1698 | arg_remove = true; | |
1699 | break; | |
1700 | ||
81815651 ZJS |
1701 | case ARG_BOOT: |
1702 | arg_boot = true; | |
c4708f13 ZJS |
1703 | break; |
1704 | ||
fba6e687 | 1705 | case ARG_PREFIX: |
7bc040fa | 1706 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 1707 | return log_oom(); |
fba6e687 LP |
1708 | break; |
1709 | ||
5c795114 | 1710 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 1711 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
1712 | return log_oom(); |
1713 | break; | |
1714 | ||
cf9a4abd | 1715 | case ARG_ROOT: |
753615e8 | 1716 | free(arg_root); |
cf9a4abd MM |
1717 | arg_root = path_make_absolute_cwd(optarg); |
1718 | if (!arg_root) | |
1719 | return log_oom(); | |
753615e8 | 1720 | |
cf9a4abd MM |
1721 | path_kill_slashes(arg_root); |
1722 | break; | |
1723 | ||
3b63d2d3 LP |
1724 | case '?': |
1725 | return -EINVAL; | |
1726 | ||
1727 | default: | |
eb9da376 | 1728 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 1729 | } |
3b63d2d3 LP |
1730 | |
1731 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 1732 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
1733 | return -EINVAL; |
1734 | } | |
1735 | ||
1736 | return 1; | |
1737 | } | |
1738 | ||
fba6e687 | 1739 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
1740 | _cleanup_fclose_ FILE *f = NULL; |
1741 | char line[LINE_MAX]; | |
78a92a5a | 1742 | Iterator iterator; |
1731e34a | 1743 | unsigned v = 0; |
78a92a5a | 1744 | Item *i; |
1731e34a | 1745 | int r; |
fba6e687 LP |
1746 | |
1747 | assert(fn); | |
1748 | ||
cf9a4abd | 1749 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e LP |
1750 | if (r < 0) { |
1751 | if (ignore_enoent && r == -ENOENT) | |
fba6e687 LP |
1752 | return 0; |
1753 | ||
8d3d7072 | 1754 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
fba6e687 LP |
1755 | } |
1756 | ||
1731e34a LP |
1757 | FOREACH_LINE(line, f, break) { |
1758 | char *l; | |
fba6e687 LP |
1759 | int k; |
1760 | ||
fba6e687 LP |
1761 | v++; |
1762 | ||
1763 | l = strstrip(line); | |
1764 | if (*l == '#' || *l == 0) | |
1765 | continue; | |
1766 | ||
1731e34a LP |
1767 | k = parse_line(fn, v, l); |
1768 | if (k < 0 && r == 0) | |
1769 | r = k; | |
fba6e687 LP |
1770 | } |
1771 | ||
78a92a5a MS |
1772 | /* we have to determine age parameter for each entry of type X */ |
1773 | HASHMAP_FOREACH(i, globs, iterator) { | |
1774 | Iterator iter; | |
1775 | Item *j, *candidate_item = NULL; | |
1776 | ||
1777 | if (i->type != IGNORE_DIRECTORY_PATH) | |
1778 | continue; | |
1779 | ||
1780 | HASHMAP_FOREACH(j, items, iter) { | |
d7b8eec7 | 1781 | if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY && j->type != CREATE_SUBVOLUME) |
78a92a5a MS |
1782 | continue; |
1783 | ||
1784 | if (path_equal(j->path, i->path)) { | |
1785 | candidate_item = j; | |
1786 | break; | |
1787 | } | |
1788 | ||
1789 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
1790 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
1791 | candidate_item = j; | |
1792 | } | |
1793 | ||
9ed2a35e | 1794 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
1795 | i->age = candidate_item->age; |
1796 | i->age_set = true; | |
1797 | } | |
1798 | } | |
1799 | ||
fba6e687 | 1800 | if (ferror(f)) { |
56f64d95 | 1801 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
1802 | if (r == 0) |
1803 | r = -EIO; | |
1804 | } | |
1805 | ||
fba6e687 LP |
1806 | return r; |
1807 | } | |
1808 | ||
5008d581 | 1809 | int main(int argc, char *argv[]) { |
fabe5c0e | 1810 | int r, k; |
3f93da98 | 1811 | ItemArray *a; |
3b63d2d3 LP |
1812 | Iterator iterator; |
1813 | ||
fdcad0c2 LP |
1814 | r = parse_argv(argc, argv); |
1815 | if (r <= 0) | |
753615e8 | 1816 | goto finish; |
5008d581 | 1817 | |
eb0ca9eb | 1818 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
1819 | log_parse_environment(); |
1820 | log_open(); | |
1821 | ||
4c12626c LP |
1822 | umask(0022); |
1823 | ||
cc56fafe | 1824 | mac_selinux_init(NULL); |
5008d581 | 1825 | |
d5099efc MS |
1826 | items = hashmap_new(&string_hash_ops); |
1827 | globs = hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
1828 | |
1829 | if (!items || !globs) { | |
fabe5c0e | 1830 | r = log_oom(); |
3b63d2d3 LP |
1831 | goto finish; |
1832 | } | |
1833 | ||
fabe5c0e | 1834 | r = 0; |
5008d581 | 1835 | |
fba6e687 LP |
1836 | if (optind < argc) { |
1837 | int j; | |
5008d581 | 1838 | |
9125670f | 1839 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
1840 | k = read_config_file(argv[j], false); |
1841 | if (k < 0 && r == 0) | |
1842 | r = k; | |
9125670f | 1843 | } |
5008d581 | 1844 | |
fba6e687 | 1845 | } else { |
fabe5c0e LP |
1846 | _cleanup_strv_free_ char **files = NULL; |
1847 | char **f; | |
5008d581 | 1848 | |
cf9a4abd | 1849 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 1850 | if (r < 0) { |
da927ba9 | 1851 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
1852 | goto finish; |
1853 | } | |
3b63d2d3 | 1854 | |
772f8371 | 1855 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
1856 | k = read_config_file(*f, true); |
1857 | if (k < 0 && r == 0) | |
1858 | r = k; | |
5008d581 | 1859 | } |
772f8371 | 1860 | } |
5008d581 | 1861 | |
3f93da98 ZJS |
1862 | HASHMAP_FOREACH(a, globs, iterator) { |
1863 | k = process_item_array(a); | |
1db50423 ZJS |
1864 | if (k < 0 && r == 0) |
1865 | r = k; | |
1866 | } | |
b8bb3e8f | 1867 | |
3f93da98 ZJS |
1868 | HASHMAP_FOREACH(a, items, iterator) { |
1869 | k = process_item_array(a); | |
1db50423 ZJS |
1870 | if (k < 0 && r == 0) |
1871 | r = k; | |
1872 | } | |
3b63d2d3 | 1873 | |
5008d581 | 1874 | finish: |
3f93da98 ZJS |
1875 | while ((a = hashmap_steal_first(items))) |
1876 | item_array_free(a); | |
3b63d2d3 | 1877 | |
3f93da98 ZJS |
1878 | while ((a = hashmap_steal_first(globs))) |
1879 | item_array_free(a); | |
17b90525 | 1880 | |
3b63d2d3 | 1881 | hashmap_free(items); |
b8bb3e8f | 1882 | hashmap_free(globs); |
5008d581 | 1883 | |
7bc040fa LP |
1884 | free(arg_include_prefixes); |
1885 | free(arg_exclude_prefixes); | |
cf9a4abd | 1886 | free(arg_root); |
a2aced4a | 1887 | |
17b90525 LP |
1888 | set_free_free(unix_sockets); |
1889 | ||
cc56fafe | 1890 | mac_selinux_finish(); |
29003cff | 1891 | |
fabe5c0e | 1892 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1893 | } |