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Commit | Line | Data |
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5008d581 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
3b63d2d3 | 4 | Copyright 2010 Lennart Poettering, Kay Sievers |
3f93da98 | 5 | Copyright 2015 Zbigniew Jędrzejewski-Szmek |
5008d581 LP |
6 | |
7 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
8 | under the terms of the GNU Lesser General Public License as published by |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
5008d581 LP |
10 | (at your option) any later version. |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 15 | Lesser General Public License for more details. |
5008d581 | 16 | |
5430f7f2 | 17 | You should have received a copy of the GNU Lesser General Public License |
5008d581 LP |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
19 | ***/ | |
20 | ||
5008d581 | 21 | #include <errno.h> |
3f6fd1ba LP |
22 | #include <fcntl.h> |
23 | #include <fnmatch.h> | |
24 | #include <getopt.h> | |
25 | #include <glob.h> | |
5008d581 | 26 | #include <limits.h> |
3f6fd1ba LP |
27 | #include <linux/fs.h> |
28 | #include <stdbool.h> | |
29 | #include <stddef.h> | |
3b63d2d3 LP |
30 | #include <stdio.h> |
31 | #include <stdlib.h> | |
3f6fd1ba | 32 | #include <string.h> |
505ef0e3 | 33 | #include <sys/stat.h> |
ebf4e801 | 34 | #include <sys/xattr.h> |
3f6fd1ba LP |
35 | #include <time.h> |
36 | #include <unistd.h> | |
5008d581 | 37 | |
3f6fd1ba | 38 | #include "acl-util.h" |
b5efdb8a | 39 | #include "alloc-util.h" |
3f6fd1ba | 40 | #include "btrfs-util.h" |
430f0182 | 41 | #include "capability-util.h" |
c8b3094d | 42 | #include "chattr-util.h" |
3f6fd1ba LP |
43 | #include "conf-files.h" |
44 | #include "copy.h" | |
a0f29c76 | 45 | #include "def.h" |
8fb3f009 | 46 | #include "dirent-util.h" |
4f5dd394 | 47 | #include "escape.h" |
3ffd4af2 | 48 | #include "fd-util.h" |
0d39fa9c | 49 | #include "fileio.h" |
f97b34a6 | 50 | #include "format-util.h" |
f4f15635 | 51 | #include "fs-util.h" |
7d50b32a | 52 | #include "glob-util.h" |
c004493c | 53 | #include "io-util.h" |
3f6fd1ba | 54 | #include "label.h" |
5008d581 | 55 | #include "log.h" |
54693d9b | 56 | #include "macro.h" |
d39efe74 | 57 | #include "missing.h" |
49e942b2 | 58 | #include "mkdir.h" |
4e036b7a | 59 | #include "mount-util.h" |
6bedfcbb | 60 | #include "parse-util.h" |
9eb977db | 61 | #include "path-util.h" |
c6878637 | 62 | #include "rm-rf.h" |
d7b8eec7 | 63 | #include "selinux-util.h" |
3f6fd1ba LP |
64 | #include "set.h" |
65 | #include "specifier.h" | |
8fcde012 | 66 | #include "stat-util.h" |
15a5e950 | 67 | #include "stdio-util.h" |
8b43440b | 68 | #include "string-table.h" |
07630cea | 69 | #include "string-util.h" |
3f6fd1ba | 70 | #include "strv.h" |
affb60b1 | 71 | #include "umask-util.h" |
b1d4f8e1 | 72 | #include "user-util.h" |
3f6fd1ba | 73 | #include "util.h" |
5008d581 | 74 | |
01000479 | 75 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 76 | * them in the file system. This is intended to be used to create |
db019b8d KS |
77 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
78 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 79 | |
66ccd038 | 80 | typedef enum ItemType { |
b8bb3e8f | 81 | /* These ones take file names */ |
3b63d2d3 LP |
82 | CREATE_FILE = 'f', |
83 | TRUNCATE_FILE = 'F', | |
84 | CREATE_DIRECTORY = 'd', | |
85 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 86 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
87 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
88 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 89 | CREATE_FIFO = 'p', |
468d726b LP |
90 | CREATE_SYMLINK = 'L', |
91 | CREATE_CHAR_DEVICE = 'c', | |
92 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 93 | COPY_FILES = 'C', |
b8bb3e8f LP |
94 | |
95 | /* These ones take globs */ | |
17493fa5 | 96 | WRITE_FILE = 'w', |
df8dee85 | 97 | EMPTY_DIRECTORY = 'e', |
b705ab6a ZJS |
98 | SET_XATTR = 't', |
99 | RECURSIVE_SET_XATTR = 'T', | |
100 | SET_ACL = 'a', | |
101 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
102 | SET_ATTRIBUTE = 'h', |
103 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 104 | IGNORE_PATH = 'x', |
78a92a5a | 105 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 106 | REMOVE_PATH = 'r', |
a8d88783 | 107 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 108 | RELABEL_PATH = 'z', |
e73a03e0 | 109 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 110 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 111 | } ItemType; |
3b63d2d3 LP |
112 | |
113 | typedef struct Item { | |
66ccd038 | 114 | ItemType type; |
3b63d2d3 LP |
115 | |
116 | char *path; | |
468d726b | 117 | char *argument; |
ebf4e801 | 118 | char **xattrs; |
f8eeeaf9 ZJS |
119 | #ifdef HAVE_ACL |
120 | acl_t acl_access; | |
121 | acl_t acl_default; | |
122 | #endif | |
5008d581 LP |
123 | uid_t uid; |
124 | gid_t gid; | |
3b63d2d3 LP |
125 | mode_t mode; |
126 | usec_t age; | |
127 | ||
468d726b | 128 | dev_t major_minor; |
88ec4dfa LP |
129 | unsigned attribute_value; |
130 | unsigned attribute_mask; | |
468d726b | 131 | |
3b63d2d3 LP |
132 | bool uid_set:1; |
133 | bool gid_set:1; | |
134 | bool mode_set:1; | |
135 | bool age_set:1; | |
abef3f91 | 136 | bool mask_perms:1; |
88ec4dfa | 137 | bool attribute_set:1; |
24f3a374 LP |
138 | |
139 | bool keep_first_level:1; | |
1910cd0e | 140 | |
2e78fa79 LP |
141 | bool force:1; |
142 | ||
1910cd0e | 143 | bool done:1; |
3b63d2d3 LP |
144 | } Item; |
145 | ||
3f93da98 ZJS |
146 | typedef struct ItemArray { |
147 | Item *items; | |
148 | size_t count; | |
149 | size_t size; | |
150 | } ItemArray; | |
151 | ||
3b63d2d3 LP |
152 | static bool arg_create = false; |
153 | static bool arg_clean = false; | |
154 | static bool arg_remove = false; | |
81815651 | 155 | static bool arg_boot = false; |
3b63d2d3 | 156 | |
7bc040fa LP |
157 | static char **arg_include_prefixes = NULL; |
158 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 159 | static char *arg_root = NULL; |
fba6e687 | 160 | |
75eb6154 | 161 | static const char conf_file_dirs[] = CONF_PATHS_NULSTR("tmpfiles.d"); |
9125670f | 162 | |
3b63d2d3 LP |
163 | #define MAX_DEPTH 256 |
164 | ||
ef43a391 | 165 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
166 | static Set *unix_sockets = NULL; |
167 | ||
bd550f78 LP |
168 | static const Specifier specifier_table[] = { |
169 | { 'm', specifier_machine_id, NULL }, | |
170 | { 'b', specifier_boot_id, NULL }, | |
171 | { 'H', specifier_host_name, NULL }, | |
172 | { 'v', specifier_kernel_release, NULL }, | |
173 | {} | |
174 | }; | |
175 | ||
66ccd038 | 176 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
177 | return IN_SET(t, |
178 | WRITE_FILE, | |
179 | IGNORE_PATH, | |
180 | IGNORE_DIRECTORY_PATH, | |
181 | REMOVE_PATH, | |
182 | RECURSIVE_REMOVE_PATH, | |
df8dee85 | 183 | EMPTY_DIRECTORY, |
e73a03e0 | 184 | ADJUST_MODE, |
cde684a2 | 185 | RELABEL_PATH, |
b705ab6a ZJS |
186 | RECURSIVE_RELABEL_PATH, |
187 | SET_XATTR, | |
188 | RECURSIVE_SET_XATTR, | |
189 | SET_ACL, | |
34f64536 LP |
190 | RECURSIVE_SET_ACL, |
191 | SET_ATTRIBUTE, | |
192 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
193 | } |
194 | ||
3f93da98 ZJS |
195 | static bool takes_ownership(ItemType t) { |
196 | return IN_SET(t, | |
197 | CREATE_FILE, | |
198 | TRUNCATE_FILE, | |
199 | CREATE_DIRECTORY, | |
df8dee85 | 200 | EMPTY_DIRECTORY, |
3f93da98 ZJS |
201 | TRUNCATE_DIRECTORY, |
202 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
203 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
204 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
205 | CREATE_FIFO, |
206 | CREATE_SYMLINK, | |
207 | CREATE_CHAR_DEVICE, | |
208 | CREATE_BLOCK_DEVICE, | |
209 | COPY_FILES, | |
3f93da98 ZJS |
210 | WRITE_FILE, |
211 | IGNORE_PATH, | |
212 | IGNORE_DIRECTORY_PATH, | |
213 | REMOVE_PATH, | |
214 | RECURSIVE_REMOVE_PATH); | |
215 | } | |
216 | ||
ef43a391 | 217 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 218 | ItemArray *j; |
b8bb3e8f LP |
219 | Iterator i; |
220 | ||
ef43a391 | 221 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
222 | unsigned n; |
223 | ||
224 | for (n = 0; n < j->count; n++) { | |
225 | Item *item = j->items + n; | |
226 | ||
227 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
228 | return item; | |
229 | } | |
230 | } | |
b8bb3e8f LP |
231 | |
232 | return NULL; | |
233 | } | |
234 | ||
17b90525 | 235 | static void load_unix_sockets(void) { |
7fd1b19b | 236 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
237 | char line[LINE_MAX]; |
238 | ||
239 | if (unix_sockets) | |
240 | return; | |
241 | ||
242 | /* We maintain a cache of the sockets we found in | |
243 | * /proc/net/unix to speed things up a little. */ | |
244 | ||
d5099efc | 245 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 246 | if (!unix_sockets) |
17b90525 LP |
247 | return; |
248 | ||
fdcad0c2 LP |
249 | f = fopen("/proc/net/unix", "re"); |
250 | if (!f) | |
17b90525 LP |
251 | return; |
252 | ||
fdcad0c2 LP |
253 | /* Skip header */ |
254 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
255 | goto fail; |
256 | ||
257 | for (;;) { | |
258 | char *p, *s; | |
259 | int k; | |
260 | ||
fdcad0c2 | 261 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
262 | break; |
263 | ||
264 | truncate_nl(line); | |
265 | ||
fdcad0c2 LP |
266 | p = strchr(line, ':'); |
267 | if (!p) | |
268 | continue; | |
269 | ||
270 | if (strlen(p) < 37) | |
17b90525 LP |
271 | continue; |
272 | ||
fdcad0c2 | 273 | p += 37; |
17b90525 | 274 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 275 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
276 | p += strspn(p, WHITESPACE); |
277 | ||
278 | if (*p != '/') | |
279 | continue; | |
280 | ||
fdcad0c2 LP |
281 | s = strdup(p); |
282 | if (!s) | |
17b90525 LP |
283 | goto fail; |
284 | ||
4ff21d85 LP |
285 | path_kill_slashes(s); |
286 | ||
ef42202a ZJS |
287 | k = set_consume(unix_sockets, s); |
288 | if (k < 0 && k != -EEXIST) | |
289 | goto fail; | |
17b90525 LP |
290 | } |
291 | ||
292 | return; | |
293 | ||
294 | fail: | |
295 | set_free_free(unix_sockets); | |
296 | unix_sockets = NULL; | |
17b90525 LP |
297 | } |
298 | ||
299 | static bool unix_socket_alive(const char *fn) { | |
300 | assert(fn); | |
301 | ||
302 | load_unix_sockets(); | |
303 | ||
304 | if (unix_sockets) | |
305 | return !!set_get(unix_sockets, (char*) fn); | |
306 | ||
307 | /* We don't know, so assume yes */ | |
308 | return true; | |
309 | } | |
310 | ||
99d680ac | 311 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 312 | |
2695c5c4 | 313 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
314 | int mount_id_parent, mount_id; |
315 | int r_p, r; | |
316 | ||
370c860f | 317 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
318 | if (r_p < 0) |
319 | r_p = -errno; | |
320 | ||
370c860f DR |
321 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
322 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
323 | if (r < 0) |
324 | r = -errno; | |
325 | ||
326 | /* got no handle; make no assumptions, return error */ | |
327 | if (r_p < 0 && r < 0) | |
328 | return r_p; | |
329 | ||
330 | /* got both handles; if they differ, it is a mount point */ | |
331 | if (r_p >= 0 && r >= 0) | |
332 | return mount_id_parent != mount_id; | |
333 | ||
334 | /* got only one handle; assume different mount points if one | |
335 | * of both queries was not supported by the filesystem */ | |
4c701096 | 336 | if (IN_SET(r_p, -ENOSYS, -EOPNOTSUPP) || IN_SET(r, -ENOSYS, -EOPNOTSUPP)) |
99d680ac KS |
337 | return true; |
338 | ||
339 | /* return error */ | |
340 | if (r_p < 0) | |
341 | return r_p; | |
342 | return r; | |
343 | } | |
344 | ||
df99a9ef ZJS |
345 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
346 | DIR *dir; | |
347 | ||
348 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
349 | if (dir) |
350 | return dir; | |
351 | ||
352 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
353 | if (errno != EPERM) | |
354 | return NULL; | |
355 | ||
356 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
357 | if (!dir) | |
358 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
359 | |
360 | return dir; | |
361 | } | |
362 | ||
363 | static DIR* opendir_nomod(const char *path) { | |
364 | return xopendirat_nomod(AT_FDCWD, path); | |
365 | } | |
366 | ||
3b63d2d3 | 367 | static int dir_cleanup( |
78a92a5a | 368 | Item *i, |
3b63d2d3 LP |
369 | const char *p, |
370 | DIR *d, | |
371 | const struct stat *ds, | |
372 | usec_t cutoff, | |
373 | dev_t rootdev, | |
374 | bool mountpoint, | |
24f3a374 | 375 | int maxdepth, |
265ffa1e LP |
376 | bool keep_this_level) { |
377 | ||
3b63d2d3 LP |
378 | struct dirent *dent; |
379 | struct timespec times[2]; | |
380 | bool deleted = false; | |
3b63d2d3 LP |
381 | int r = 0; |
382 | ||
8fb3f009 | 383 | FOREACH_DIRENT_ALL(dent, d, break) { |
3b63d2d3 LP |
384 | struct stat s; |
385 | usec_t age; | |
7fd1b19b | 386 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 387 | |
49bfc877 | 388 | if (dot_or_dot_dot(dent->d_name)) |
3b63d2d3 | 389 | continue; |
5008d581 | 390 | |
3b63d2d3 | 391 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
392 | if (errno == ENOENT) |
393 | continue; | |
5008d581 | 394 | |
ca2f4176 KS |
395 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
396 | if (errno == EACCES) | |
56f64d95 | 397 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 398 | else |
56f64d95 | 399 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 400 | r = -errno; |
3b63d2d3 LP |
401 | continue; |
402 | } | |
403 | ||
404 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
405 | if (s.st_dev != rootdev) { |
406 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 407 | continue; |
582deb84 | 408 | } |
3b63d2d3 | 409 | |
99d680ac KS |
410 | /* Try to detect bind mounts of the same filesystem instance; they |
411 | * do not differ in device major/minors. This type of query is not | |
412 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
413 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
414 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
415 | p, dent->d_name); | |
99d680ac | 416 | continue; |
582deb84 | 417 | } |
99d680ac | 418 | |
3b63d2d3 | 419 | /* Do not delete read-only files owned by root */ |
582deb84 ZJS |
420 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
421 | log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); | |
3b63d2d3 | 422 | continue; |
582deb84 | 423 | } |
3b63d2d3 | 424 | |
605405c6 | 425 | sub_path = strjoin(p, "/", dent->d_name); |
cde684a2 | 426 | if (!sub_path) { |
0d0f0c50 | 427 | r = log_oom(); |
3b63d2d3 LP |
428 | goto finish; |
429 | } | |
430 | ||
431 | /* Is there an item configured for this path? */ | |
ef43a391 | 432 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 433 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 434 | continue; |
582deb84 | 435 | } |
3b63d2d3 | 436 | |
582deb84 ZJS |
437 | if (find_glob(globs, sub_path)) { |
438 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 439 | continue; |
582deb84 | 440 | } |
b8bb3e8f | 441 | |
3b63d2d3 LP |
442 | if (S_ISDIR(s.st_mode)) { |
443 | ||
444 | if (mountpoint && | |
445 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
446 | s.st_uid == 0) { |
447 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 448 | continue; |
582deb84 | 449 | } |
3b63d2d3 LP |
450 | |
451 | if (maxdepth <= 0) | |
582deb84 | 452 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 453 | else { |
7fd1b19b | 454 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
455 | int q; |
456 | ||
df99a9ef | 457 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 458 | if (!sub_dir) { |
582deb84 ZJS |
459 | if (errno != ENOENT) |
460 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
461 | |
462 | continue; | |
463 | } | |
464 | ||
78a92a5a | 465 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
466 | if (q < 0) |
467 | r = q; | |
468 | } | |
469 | ||
24f3a374 LP |
470 | /* Note: if you are wondering why we don't |
471 | * support the sticky bit for excluding | |
472 | * directories from cleaning like we do it for | |
473 | * other file system objects: well, the sticky | |
474 | * bit already has a meaning for directories, | |
475 | * so we don't want to overload that. */ | |
476 | ||
582deb84 ZJS |
477 | if (keep_this_level) { |
478 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 479 | continue; |
582deb84 | 480 | } |
24f3a374 | 481 | |
3b63d2d3 | 482 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
483 | age = timespec_load(&s.st_mtim); |
484 | if (age >= cutoff) { | |
485 | char a[FORMAT_TIMESTAMP_MAX]; | |
486 | /* Follows spelling in stat(1). */ | |
487 | log_debug("Directory \"%s\": modify time %s is too new.", | |
488 | sub_path, | |
489 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 490 | continue; |
582deb84 ZJS |
491 | } |
492 | ||
493 | age = timespec_load(&s.st_atim); | |
494 | if (age >= cutoff) { | |
495 | char a[FORMAT_TIMESTAMP_MAX]; | |
496 | log_debug("Directory \"%s\": access time %s is too new.", | |
497 | sub_path, | |
498 | format_timestamp_us(a, sizeof(a), age)); | |
499 | continue; | |
500 | } | |
3b63d2d3 | 501 | |
61253220 ZJS |
502 | log_debug("Removing directory \"%s\".", sub_path); |
503 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
4c701096 | 504 | if (!IN_SET(errno, ENOENT, ENOTEMPTY)) { |
61253220 ZJS |
505 | log_error_errno(errno, "rmdir(%s): %m", sub_path); |
506 | r = -errno; | |
3b63d2d3 | 507 | } |
3b63d2d3 LP |
508 | |
509 | } else { | |
9c73736d LP |
510 | /* Skip files for which the sticky bit is |
511 | * set. These are semantics we define, and are | |
512 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
513 | * specification for details. */ | |
582deb84 ZJS |
514 | if (s.st_mode & S_ISVTX) { |
515 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 516 | continue; |
582deb84 | 517 | } |
9c73736d | 518 | |
582deb84 | 519 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
520 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
521 | ".journal", | |
522 | "aquota.user", | |
523 | "aquota.group")) { | |
582deb84 | 524 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 525 | continue; |
582deb84 | 526 | } |
3b63d2d3 | 527 | |
17b90525 | 528 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
529 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
530 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 531 | continue; |
582deb84 | 532 | } |
17b90525 | 533 | |
78ab08eb | 534 | /* Ignore device nodes */ |
582deb84 ZJS |
535 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
536 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 537 | continue; |
582deb84 | 538 | } |
78ab08eb | 539 | |
24f3a374 LP |
540 | /* Keep files on this level around if this is |
541 | * requested */ | |
582deb84 ZJS |
542 | if (keep_this_level) { |
543 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 544 | continue; |
582deb84 | 545 | } |
24f3a374 | 546 | |
582deb84 ZJS |
547 | age = timespec_load(&s.st_mtim); |
548 | if (age >= cutoff) { | |
549 | char a[FORMAT_TIMESTAMP_MAX]; | |
550 | /* Follows spelling in stat(1). */ | |
551 | log_debug("File \"%s\": modify time %s is too new.", | |
552 | sub_path, | |
553 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 554 | continue; |
582deb84 | 555 | } |
3b63d2d3 | 556 | |
582deb84 ZJS |
557 | age = timespec_load(&s.st_atim); |
558 | if (age >= cutoff) { | |
559 | char a[FORMAT_TIMESTAMP_MAX]; | |
560 | log_debug("File \"%s\": access time %s is too new.", | |
561 | sub_path, | |
562 | format_timestamp_us(a, sizeof(a), age)); | |
563 | continue; | |
564 | } | |
3b63d2d3 | 565 | |
582deb84 ZJS |
566 | age = timespec_load(&s.st_ctim); |
567 | if (age >= cutoff) { | |
568 | char a[FORMAT_TIMESTAMP_MAX]; | |
569 | log_debug("File \"%s\": change time %s is too new.", | |
570 | sub_path, | |
571 | format_timestamp_us(a, sizeof(a), age)); | |
572 | continue; | |
3b63d2d3 LP |
573 | } |
574 | ||
582deb84 ZJS |
575 | log_debug("unlink \"%s\"", sub_path); |
576 | ||
577 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
578 | if (errno != ENOENT) | |
579 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
580 | ||
3b63d2d3 LP |
581 | deleted = true; |
582 | } | |
583 | } | |
584 | ||
585 | finish: | |
586 | if (deleted) { | |
582deb84 ZJS |
587 | usec_t age1, age2; |
588 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
589 | ||
3b63d2d3 LP |
590 | /* Restore original directory timestamps */ |
591 | times[0] = ds->st_atim; | |
592 | times[1] = ds->st_mtim; | |
593 | ||
582deb84 ZJS |
594 | age1 = timespec_load(&ds->st_atim); |
595 | age2 = timespec_load(&ds->st_mtim); | |
596 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
597 | p, | |
598 | format_timestamp_us(a, sizeof(a), age1), | |
599 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 600 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 601 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
602 | } |
603 | ||
3b63d2d3 LP |
604 | return r; |
605 | } | |
606 | ||
b705ab6a | 607 | static int path_set_perms(Item *i, const char *path) { |
48b8aaa8 | 608 | _cleanup_close_ int fd = -1; |
1924a97d | 609 | struct stat st; |
1924a97d | 610 | |
cde684a2 LP |
611 | assert(i); |
612 | assert(path); | |
613 | ||
48b8aaa8 LP |
614 | /* We open the file with O_PATH here, to make the operation |
615 | * somewhat atomic. Also there's unfortunately no fchmodat() | |
616 | * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via | |
617 | * O_PATH. */ | |
618 | ||
c4b69156 | 619 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); |
780e2ee1 MS |
620 | if (fd < 0) { |
621 | int level = LOG_ERR, r = -errno; | |
622 | ||
623 | /* Option "e" operates only on existing objects. Do not | |
624 | * print errors about non-existent files or directories */ | |
625 | if (i->type == EMPTY_DIRECTORY && errno == ENOENT) { | |
626 | level = LOG_DEBUG; | |
627 | r = 0; | |
628 | } | |
629 | ||
630 | log_full_errno(level, errno, "Adjusting owner and mode for %s failed: %m", path); | |
631 | ||
632 | return r; | |
633 | } | |
48b8aaa8 LP |
634 | |
635 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
636 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1924a97d | 637 | |
48b8aaa8 LP |
638 | if (S_ISLNK(st.st_mode)) |
639 | log_debug("Skipping mode an owner fix for symlink %s.", path); | |
640 | else { | |
641 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; | |
642 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
abef3f91 | 643 | |
48b8aaa8 LP |
644 | /* not using i->path directly because it may be a glob */ |
645 | if (i->mode_set) { | |
646 | mode_t m = i->mode; | |
647 | ||
648 | if (i->mask_perms) { | |
649 | if (!(st.st_mode & 0111)) | |
650 | m &= ~0111; | |
651 | if (!(st.st_mode & 0222)) | |
7d6884b6 | 652 | m &= ~0222; |
48b8aaa8 LP |
653 | if (!(st.st_mode & 0444)) |
654 | m &= ~0444; | |
655 | if (!S_ISDIR(st.st_mode)) | |
656 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
657 | } | |
abef3f91 | 658 | |
48b8aaa8 LP |
659 | if (m == (st.st_mode & 07777)) |
660 | log_debug("\"%s\" has right mode %o", path, st.st_mode); | |
661 | else { | |
662 | log_debug("chmod \"%s\" to mode %o", path, m); | |
663 | if (chmod(fn, m) < 0) | |
e0bc1d70 | 664 | return log_error_errno(errno, "chmod() of %s via %s failed: %m", path, fn); |
48b8aaa8 | 665 | } |
062e01bb | 666 | } |
062e01bb | 667 | |
48b8aaa8 LP |
668 | if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
669 | (i->uid_set || i->gid_set)) { | |
670 | log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, | |
671 | path, | |
672 | i->uid_set ? i->uid : UID_INVALID, | |
673 | i->gid_set ? i->gid : GID_INVALID); | |
674 | if (chown(fn, | |
675 | i->uid_set ? i->uid : UID_INVALID, | |
676 | i->gid_set ? i->gid : GID_INVALID) < 0) | |
e0bc1d70 | 677 | return log_error_errno(errno, "chown() of %s via %s failed: %m", path, fn); |
48b8aaa8 | 678 | } |
582deb84 | 679 | } |
062e01bb | 680 | |
48b8aaa8 LP |
681 | fd = safe_close(fd); |
682 | ||
9855d6c7 | 683 | return label_fix(path, false, false); |
062e01bb MS |
684 | } |
685 | ||
bd550f78 | 686 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
687 | const char *p; |
688 | int r; | |
689 | ||
690 | assert(i); | |
505ef0e3 | 691 | assert(i->argument); |
ebf4e801 | 692 | |
ebf4e801 MW |
693 | p = i->argument; |
694 | ||
4034a06d | 695 | for (;;) { |
bd550f78 | 696 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
4034a06d | 697 | |
12ba2c44 | 698 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 699 | if (r < 0) |
bd550f78 | 700 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
701 | if (r <= 0) |
702 | break; | |
505ef0e3 | 703 | |
bd550f78 LP |
704 | r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
705 | if (r < 0) | |
706 | return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); | |
707 | ||
708 | r = split_pair(xattr_replaced, "=", &name, &value); | |
ebf4e801 | 709 | if (r < 0) { |
4034a06d | 710 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
711 | continue; |
712 | } | |
505ef0e3 | 713 | |
4034a06d | 714 | if (isempty(name) || isempty(value)) { |
bd550f78 | 715 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
716 | continue; |
717 | } | |
505ef0e3 | 718 | |
4034a06d | 719 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 720 | return log_oom(); |
505ef0e3 | 721 | |
4034a06d | 722 | name = value = NULL; |
ebf4e801 MW |
723 | } |
724 | ||
4034a06d | 725 | return 0; |
ebf4e801 MW |
726 | } |
727 | ||
b705ab6a | 728 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
729 | char **name, **value; |
730 | ||
731 | assert(i); | |
732 | assert(path); | |
733 | ||
ebf4e801 MW |
734 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
735 | int n; | |
505ef0e3 | 736 | |
ebf4e801 | 737 | n = strlen(*value); |
bd550f78 | 738 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
25f027c5 ZJS |
739 | if (lsetxattr(path, *name, *value, n, 0) < 0) |
740 | return log_error_errno(errno, "Setting extended attribute %s=%s on %s failed: %m", | |
741 | *name, *value, path); | |
ebf4e801 MW |
742 | } |
743 | return 0; | |
744 | } | |
745 | ||
bd550f78 | 746 | static int parse_acls_from_arg(Item *item) { |
f8eeeaf9 ZJS |
747 | #ifdef HAVE_ACL |
748 | int r; | |
f8eeeaf9 ZJS |
749 | |
750 | assert(item); | |
751 | ||
50d9e46d ZJS |
752 | /* If force (= modify) is set, we will not modify the acl |
753 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 754 | |
50d9e46d | 755 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 756 | if (r < 0) |
4034a06d | 757 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
758 | #else |
759 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
760 | #endif | |
761 | ||
762 | return 0; | |
763 | } | |
764 | ||
35888b67 | 765 | #ifdef HAVE_ACL |
48b8aaa8 LP |
766 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
767 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 768 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
769 | int r; |
770 | ||
d873e877 HPD |
771 | /* Returns 0 for success, positive error if already warned, |
772 | * negative error otherwise. */ | |
773 | ||
50d9e46d | 774 | if (modify) { |
dd4105b0 | 775 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
776 | if (r < 0) |
777 | return r; | |
50d9e46d | 778 | |
dd4105b0 ZJS |
779 | r = calc_acl_mask_if_needed(&dup); |
780 | if (r < 0) | |
781 | return r; | |
782 | } else { | |
783 | dup = acl_dup(acl); | |
784 | if (!dup) | |
785 | return -errno; | |
786 | ||
787 | /* the mask was already added earlier if needed */ | |
788 | } | |
789 | ||
790 | r = add_base_acls_if_needed(&dup, path); | |
791 | if (r < 0) | |
792 | return r; | |
793 | ||
582deb84 | 794 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 795 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 796 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 797 | strna(t), pretty); |
50d9e46d | 798 | |
582deb84 ZJS |
799 | r = acl_set_file(path, type, dup); |
800 | if (r < 0) | |
3ea40b78 LP |
801 | /* Return positive to indicate we already warned */ |
802 | return -log_error_errno(errno, | |
803 | "Setting %s ACL \"%s\" on %s failed: %m", | |
804 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 805 | strna(t), pretty); |
d873e877 | 806 | |
582deb84 | 807 | return 0; |
50d9e46d | 808 | } |
35888b67 | 809 | #endif |
50d9e46d | 810 | |
b705ab6a | 811 | static int path_set_acls(Item *item, const char *path) { |
d873e877 | 812 | int r = 0; |
f8eeeaf9 | 813 | #ifdef HAVE_ACL |
48b8aaa8 LP |
814 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
815 | _cleanup_close_ int fd = -1; | |
816 | struct stat st; | |
817 | ||
f8eeeaf9 ZJS |
818 | assert(item); |
819 | assert(path); | |
820 | ||
c4b69156 | 821 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); |
48b8aaa8 LP |
822 | if (fd < 0) |
823 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
824 | ||
825 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
826 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
827 | ||
828 | if (S_ISLNK(st.st_mode)) { | |
829 | log_debug("Skipping ACL fix for symlink %s.", path); | |
830 | return 0; | |
831 | } | |
832 | ||
833 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
834 | ||
d873e877 | 835 | if (item->acl_access) |
48b8aaa8 | 836 | r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 837 | |
d873e877 | 838 | if (r == 0 && item->acl_default) |
48b8aaa8 | 839 | r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 840 | |
d873e877 HPD |
841 | if (r > 0) |
842 | return -r; /* already warned */ | |
15411c0c | 843 | else if (r == -EOPNOTSUPP) { |
d873e877 HPD |
844 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
845 | return 0; | |
846 | } else if (r < 0) | |
847 | log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
848 | #endif | |
849 | return r; | |
f8eeeaf9 ZJS |
850 | } |
851 | ||
88ec4dfa LP |
852 | #define ATTRIBUTES_ALL \ |
853 | (FS_NOATIME_FL | \ | |
854 | FS_SYNC_FL | \ | |
855 | FS_DIRSYNC_FL | \ | |
856 | FS_APPEND_FL | \ | |
857 | FS_COMPR_FL | \ | |
858 | FS_NODUMP_FL | \ | |
859 | FS_EXTENT_FL | \ | |
860 | FS_IMMUTABLE_FL | \ | |
861 | FS_JOURNAL_DATA_FL | \ | |
862 | FS_SECRM_FL | \ | |
863 | FS_UNRM_FL | \ | |
864 | FS_NOTAIL_FL | \ | |
865 | FS_TOPDIR_FL | \ | |
866 | FS_NOCOW_FL) | |
867 | ||
bd550f78 | 868 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
869 | |
870 | static const struct { | |
871 | char character; | |
872 | unsigned value; | |
873 | } attributes[] = { | |
874 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
875 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
876 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
877 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
878 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
879 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
8c35b2ca | 880 | { 'e', FS_EXTENT_FL }, /* Extents */ |
88ec4dfa LP |
881 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ |
882 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
883 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
884 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
885 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
13e785f7 | 886 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies */ |
88ec4dfa | 887 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ |
22c3a6ca | 888 | }; |
88ec4dfa | 889 | |
22c3a6ca GB |
890 | enum { |
891 | MODE_ADD, | |
892 | MODE_DEL, | |
893 | MODE_SET | |
894 | } mode = MODE_ADD; | |
22c3a6ca | 895 | |
88ec4dfa LP |
896 | unsigned value = 0, mask = 0; |
897 | const char *p; | |
22c3a6ca | 898 | |
88ec4dfa LP |
899 | assert(item); |
900 | ||
901 | p = item->argument; | |
902 | if (p) { | |
903 | if (*p == '+') { | |
904 | mode = MODE_ADD; | |
905 | p++; | |
906 | } else if (*p == '-') { | |
907 | mode = MODE_DEL; | |
908 | p++; | |
909 | } else if (*p == '=') { | |
910 | mode = MODE_SET; | |
911 | p++; | |
912 | } | |
22c3a6ca GB |
913 | } |
914 | ||
88ec4dfa LP |
915 | if (isempty(p) && mode != MODE_SET) { |
916 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
917 | return -EINVAL; |
918 | } | |
88ec4dfa LP |
919 | |
920 | for (; p && *p ; p++) { | |
921 | unsigned i, v; | |
922 | ||
923 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
924 | if (*p == attributes[i].character) | |
925 | break; | |
926 | ||
927 | if (i >= ELEMENTSOF(attributes)) { | |
928 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
929 | return -EINVAL; |
930 | } | |
88ec4dfa LP |
931 | |
932 | v = attributes[i].value; | |
933 | ||
3742095b | 934 | SET_FLAG(value, v, IN_SET(mode, MODE_ADD, MODE_SET)); |
88ec4dfa LP |
935 | |
936 | mask |= v; | |
22c3a6ca GB |
937 | } |
938 | ||
939 | if (mode == MODE_SET) | |
88ec4dfa | 940 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 941 | |
88ec4dfa | 942 | assert(mask != 0); |
22c3a6ca | 943 | |
88ec4dfa LP |
944 | item->attribute_mask = mask; |
945 | item->attribute_value = value; | |
946 | item->attribute_set = true; | |
22c3a6ca GB |
947 | |
948 | return 0; | |
22c3a6ca GB |
949 | } |
950 | ||
88ec4dfa | 951 | static int path_set_attribute(Item *item, const char *path) { |
22c3a6ca | 952 | _cleanup_close_ int fd = -1; |
22c3a6ca | 953 | struct stat st; |
88ec4dfa LP |
954 | unsigned f; |
955 | int r; | |
22c3a6ca | 956 | |
88ec4dfa | 957 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 958 | return 0; |
22c3a6ca | 959 | |
48b8aaa8 LP |
960 | fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
961 | if (fd < 0) { | |
962 | if (errno == ELOOP) | |
963 | return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); | |
964 | ||
88ec4dfa | 965 | return log_error_errno(errno, "Cannot open '%s': %m", path); |
48b8aaa8 | 966 | } |
22c3a6ca | 967 | |
88ec4dfa LP |
968 | if (fstat(fd, &st) < 0) |
969 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
970 | ||
971 | /* Issuing the file attribute ioctls on device nodes is not | |
972 | * safe, as that will be delivered to the drivers, not the | |
973 | * file system containing the device node. */ | |
974 | if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { | |
975 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); | |
976 | return -EINVAL; | |
977 | } | |
978 | ||
979 | f = item->attribute_value & item->attribute_mask; | |
980 | ||
981 | /* Mask away directory-specific flags */ | |
22c3a6ca GB |
982 | if (!S_ISDIR(st.st_mode)) |
983 | f &= ~FS_DIRSYNC_FL; | |
88ec4dfa LP |
984 | |
985 | r = chattr_fd(fd, f, item->attribute_mask); | |
22c3a6ca | 986 | if (r < 0) |
4c701096 | 987 | log_full_errno(IN_SET(r, -ENOTTY, -EOPNOTSUPP) ? LOG_DEBUG : LOG_WARNING, |
ad75a97f LP |
988 | r, |
989 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
990 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
991 | |
992 | return 0; | |
993 | } | |
994 | ||
d4e9eb91 | 995 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
996 | _cleanup_close_ int fd = -1; |
997 | int flags, r = 0; | |
d4e9eb91 | 998 | struct stat st; |
d4e9eb91 | 999 | |
874f1947 LP |
1000 | assert(i); |
1001 | assert(path); | |
1002 | ||
43ad6e31 LP |
1003 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
1004 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 1005 | |
43ad6e31 | 1006 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1007 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 1008 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 1009 | mac_selinux_create_file_clear(); |
5c0d398d | 1010 | } |
d4e9eb91 DR |
1011 | |
1012 | if (fd < 0) { | |
582deb84 ZJS |
1013 | if (i->type == WRITE_FILE && errno == ENOENT) { |
1014 | log_debug_errno(errno, "Not writing \"%s\": %m", path); | |
d4e9eb91 | 1015 | return 0; |
582deb84 | 1016 | } |
d4e9eb91 | 1017 | |
f44b28fd MO |
1018 | r = -errno; |
1019 | if (!i->argument && errno == EROFS && stat(path, &st) == 0 && | |
1020 | (i->type == CREATE_FILE || st.st_size == 0)) | |
1021 | goto check_mode; | |
1022 | ||
1023 | return log_error_errno(r, "Failed to create file %s: %m", path); | |
d4e9eb91 DR |
1024 | } |
1025 | ||
1026 | if (i->argument) { | |
bd550f78 | 1027 | _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
582deb84 | 1028 | |
4034a06d | 1029 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 1030 | |
527b7a42 LP |
1031 | r = cunescape(i->argument, 0, &unescaped); |
1032 | if (r < 0) | |
1033 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
d4e9eb91 | 1034 | |
bd550f78 LP |
1035 | r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
1036 | if (r < 0) | |
1037 | return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); | |
1038 | ||
1039 | r = loop_write(fd, replaced, strlen(replaced), false); | |
582deb84 ZJS |
1040 | if (r < 0) |
1041 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1042 | } else | |
1043 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1044 | |
43ad6e31 | 1045 | fd = safe_close(fd); |
3612fbc1 | 1046 | |
4a62c710 MS |
1047 | if (stat(path, &st) < 0) |
1048 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 | 1049 | |
f44b28fd | 1050 | check_mode: |
d4e9eb91 DR |
1051 | if (!S_ISREG(st.st_mode)) { |
1052 | log_error("%s is not a file.", path); | |
1053 | return -EEXIST; | |
1054 | } | |
1055 | ||
b705ab6a | 1056 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1057 | if (r < 0) |
1058 | return r; | |
1059 | ||
1060 | return 0; | |
1061 | } | |
1062 | ||
081043cf ZJS |
1063 | typedef int (*action_t)(Item *, const char *); |
1064 | ||
1065 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 1066 | _cleanup_closedir_ DIR *d; |
8fb3f009 | 1067 | struct dirent *de; |
e73a03e0 LP |
1068 | int r = 0; |
1069 | ||
1070 | assert(i); | |
1071 | assert(path); | |
a8d88783 MS |
1072 | |
1073 | /* This returns the first error we run into, but nevertheless | |
1074 | * tries to go on */ | |
1075 | ||
df99a9ef ZJS |
1076 | d = opendir_nomod(path); |
1077 | if (!d) | |
4c701096 | 1078 | return IN_SET(errno, ENOENT, ENOTDIR) ? 0 : -errno; |
a8d88783 | 1079 | |
8fb3f009 | 1080 | FOREACH_DIRENT_ALL(de, d, r = -errno) { |
e73a03e0 | 1081 | _cleanup_free_ char *p = NULL; |
e73a03e0 | 1082 | int q; |
a8d88783 | 1083 | |
49bfc877 | 1084 | if (dot_or_dot_dot(de->d_name)) |
a8d88783 MS |
1085 | continue; |
1086 | ||
605405c6 | 1087 | p = strjoin(path, "/", de->d_name); |
e73a03e0 LP |
1088 | if (!p) |
1089 | return -ENOMEM; | |
a8d88783 | 1090 | |
081043cf | 1091 | q = action(i, p); |
e73a03e0 LP |
1092 | if (q < 0 && q != -ENOENT && r == 0) |
1093 | r = q; | |
a8d88783 | 1094 | |
e73a03e0 | 1095 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 1096 | q = item_do_children(i, p, action); |
e73a03e0 LP |
1097 | if (q < 0 && r == 0) |
1098 | r = q; | |
a8d88783 | 1099 | } |
a8d88783 MS |
1100 | } |
1101 | ||
e73a03e0 | 1102 | return r; |
a8d88783 MS |
1103 | } |
1104 | ||
081043cf | 1105 | static int glob_item(Item *i, action_t action, bool recursive) { |
df99a9ef | 1106 | _cleanup_globfree_ glob_t g = { |
ebf31a1f | 1107 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, |
df99a9ef | 1108 | }; |
e73a03e0 | 1109 | int r = 0, k; |
99e68c0b MS |
1110 | char **fn; |
1111 | ||
84e72b5e ZJS |
1112 | k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g); |
1113 | if (k < 0 && k != -ENOENT) | |
1114 | return log_error_errno(k, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1115 | |
c84a9488 ZJS |
1116 | STRV_FOREACH(fn, g.gl_pathv) { |
1117 | k = action(i, *fn); | |
e73a03e0 | 1118 | if (k < 0 && r == 0) |
99e68c0b | 1119 | r = k; |
081043cf ZJS |
1120 | |
1121 | if (recursive) { | |
1122 | k = item_do_children(i, *fn, action); | |
1123 | if (k < 0 && r == 0) | |
1124 | r = k; | |
1125 | } | |
c84a9488 | 1126 | } |
99e68c0b | 1127 | |
99e68c0b MS |
1128 | return r; |
1129 | } | |
1130 | ||
294929f8 ZJS |
1131 | typedef enum { |
1132 | CREATION_NORMAL, | |
1133 | CREATION_EXISTING, | |
1134 | CREATION_FORCE, | |
7a7d5db7 LP |
1135 | _CREATION_MODE_MAX, |
1136 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1137 | } CreationMode; |
1138 | ||
7a7d5db7 LP |
1139 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1140 | [CREATION_NORMAL] = "Created", | |
1141 | [CREATION_EXISTING] = "Found existing", | |
1142 | [CREATION_FORCE] = "Created replacement", | |
1143 | }; | |
1144 | ||
1145 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1146 | |
3b63d2d3 | 1147 | static int create_item(Item *i) { |
75c2a9fd | 1148 | _cleanup_free_ char *resolved = NULL; |
3b63d2d3 | 1149 | struct stat st; |
df28bc08 | 1150 | int r = 0; |
114a17d2 | 1151 | int q = 0; |
294929f8 | 1152 | CreationMode creation; |
5008d581 | 1153 | |
3b63d2d3 | 1154 | assert(i); |
5008d581 | 1155 | |
582deb84 ZJS |
1156 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1157 | ||
3b63d2d3 LP |
1158 | switch (i->type) { |
1159 | ||
1160 | case IGNORE_PATH: | |
78a92a5a | 1161 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1162 | case REMOVE_PATH: |
1163 | case RECURSIVE_REMOVE_PATH: | |
1164 | return 0; | |
5008d581 | 1165 | |
3b63d2d3 | 1166 | case CREATE_FILE: |
31ed59c5 | 1167 | case TRUNCATE_FILE: |
1845fdd9 DR |
1168 | r = write_one_file(i, i->path); |
1169 | if (r < 0) | |
1170 | return r; | |
1171 | break; | |
265ffa1e | 1172 | |
5c5ccf12 | 1173 | case COPY_FILES: { |
5c5ccf12 LP |
1174 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1175 | if (r < 0) | |
1176 | return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); | |
1177 | ||
1178 | log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); | |
d01cd401 | 1179 | r = copy_tree(resolved, i->path, i->uid_set ? i->uid : UID_INVALID, i->gid_set ? i->gid : GID_INVALID, COPY_REFLINK); |
f44b28fd MO |
1180 | |
1181 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1182 | r = -EEXIST; | |
1183 | ||
849958d1 | 1184 | if (r < 0) { |
e156347e LP |
1185 | struct stat a, b; |
1186 | ||
8d3d7072 MS |
1187 | if (r != -EEXIST) |
1188 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1189 | |
5c5ccf12 LP |
1190 | if (stat(resolved, &a) < 0) |
1191 | return log_error_errno(errno, "stat(%s) failed: %m", resolved); | |
e156347e | 1192 | |
4a62c710 MS |
1193 | if (stat(i->path, &b) < 0) |
1194 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1195 | |
1196 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1197 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1198 | return 0; | |
1199 | } | |
849958d1 LP |
1200 | } |
1201 | ||
b705ab6a | 1202 | r = path_set_perms(i, i->path); |
849958d1 LP |
1203 | if (r < 0) |
1204 | return r; | |
1205 | ||
1206 | break; | |
1207 | ||
d4e9eb91 | 1208 | case WRITE_FILE: |
081043cf | 1209 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
1210 | if (r < 0) |
1211 | return r; | |
5008d581 | 1212 | |
3b63d2d3 LP |
1213 | break; |
1214 | ||
3b63d2d3 | 1215 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1216 | case TRUNCATE_DIRECTORY: |
1217 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1218 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1219 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
d7b8eec7 | 1220 | RUN_WITH_UMASK(0000) |
5c0d398d | 1221 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1222 | |
5fb13eb5 | 1223 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
2904e949 LP |
1224 | |
1225 | if (btrfs_is_subvol(isempty(arg_root) ? "/" : arg_root) <= 0) | |
1226 | ||
1227 | /* Don't create a subvolume unless the | |
1228 | * root directory is one, too. We do | |
1229 | * this under the assumption that if | |
1230 | * the root directory is just a plain | |
1231 | * directory (i.e. very light-weight), | |
1232 | * we shouldn't try to split it up | |
1233 | * into subvolumes (i.e. more | |
1234 | * heavy-weight). Thus, chroot() | |
1235 | * environments and suchlike will get | |
1236 | * a full brtfs subvolume set up below | |
1237 | * their tree only if they | |
1238 | * specifically set up a btrfs | |
1239 | * subvolume for the root dir too. */ | |
1240 | ||
1241 | r = -ENOTTY; | |
1242 | else { | |
1243 | RUN_WITH_UMASK((~i->mode) & 0777) | |
1244 | r = btrfs_subvol_make(i->path); | |
1245 | } | |
5fb13eb5 | 1246 | } else |
d7b8eec7 LP |
1247 | r = 0; |
1248 | ||
582deb84 | 1249 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1250 | RUN_WITH_UMASK(0000) |
1251 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1252 | |
e156347e | 1253 | if (r < 0) { |
7b135a73 | 1254 | int k; |
5008d581 | 1255 | |
4c701096 | 1256 | if (!IN_SET(r, -EEXIST, -EROFS)) |
7b135a73 | 1257 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); |
5008d581 | 1258 | |
7b135a73 LP |
1259 | k = is_dir(i->path, false); |
1260 | if (k == -ENOENT && r == -EROFS) | |
1261 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1262 | if (k < 0) | |
1263 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1264 | if (!k) { | |
1265 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1266 | return 0; |
1267 | } | |
294929f8 ZJS |
1268 | |
1269 | creation = CREATION_EXISTING; | |
1270 | } else | |
1271 | creation = CREATION_NORMAL; | |
7b135a73 | 1272 | |
7a7d5db7 | 1273 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1274 | |
5fb13eb5 LP |
1275 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1276 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
114a17d2 | 1277 | if (r == -ENOTTY) |
022ffe4c | 1278 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (unsupported fs or dir not a subvolume): %m", i->path); |
114a17d2 | 1279 | else if (r == -EROFS) |
022ffe4c | 1280 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (fs is read-only).", i->path); |
114a17d2 | 1281 | else if (r == -ENOPROTOOPT) |
022ffe4c | 1282 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (quota support is disabled).", i->path); |
114a17d2 EV |
1283 | else if (r < 0) |
1284 | q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1285 | else if (r > 0) | |
5fb13eb5 | 1286 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); |
114a17d2 | 1287 | else if (r == 0) |
5fb13eb5 LP |
1288 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); |
1289 | } | |
1290 | ||
df8dee85 ZJS |
1291 | /* fall through */ |
1292 | ||
1293 | case EMPTY_DIRECTORY: | |
b705ab6a | 1294 | r = path_set_perms(i, i->path); |
114a17d2 EV |
1295 | if (q < 0) |
1296 | return q; | |
f05bc3f7 MS |
1297 | if (r < 0) |
1298 | return r; | |
3b63d2d3 LP |
1299 | |
1300 | break; | |
ee17ee7c LP |
1301 | |
1302 | case CREATE_FIFO: | |
5c0d398d | 1303 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1304 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1305 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1306 | mac_selinux_create_file_clear(); |
5c0d398d | 1307 | } |
ee17ee7c | 1308 | |
1554afae | 1309 | if (r < 0) { |
4a62c710 MS |
1310 | if (errno != EEXIST) |
1311 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1312 | |
a542c4dc | 1313 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1314 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1315 | |
1554afae LP |
1316 | if (!S_ISFIFO(st.st_mode)) { |
1317 | ||
1318 | if (i->force) { | |
1554afae | 1319 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1320 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1321 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1322 | mac_selinux_create_file_clear(); |
1554afae LP |
1323 | } |
1324 | ||
f647962d MS |
1325 | if (r < 0) |
1326 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1327 | creation = CREATION_FORCE; |
1554afae | 1328 | } else { |
a542c4dc | 1329 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1330 | return 0; |
1331 | } | |
294929f8 ZJS |
1332 | } else |
1333 | creation = CREATION_EXISTING; | |
1334 | } else | |
1335 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1336 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1337 | |
b705ab6a | 1338 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1339 | if (r < 0) |
1340 | return r; | |
ee17ee7c LP |
1341 | |
1342 | break; | |
5c5ccf12 | 1343 | } |
a8d88783 | 1344 | |
5c5ccf12 | 1345 | case CREATE_SYMLINK: { |
5c5ccf12 LP |
1346 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1347 | if (r < 0) | |
1348 | return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); | |
468d726b | 1349 | |
ecabcf8b | 1350 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1351 | r = symlink(resolved, i->path); |
ecabcf8b | 1352 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1353 | |
468d726b | 1354 | if (r < 0) { |
2e78fa79 | 1355 | _cleanup_free_ char *x = NULL; |
468d726b | 1356 | |
4a62c710 | 1357 | if (errno != EEXIST) |
5c5ccf12 | 1358 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
2e78fa79 LP |
1359 | |
1360 | r = readlink_malloc(i->path, &x); | |
5c5ccf12 | 1361 | if (r < 0 || !streq(resolved, x)) { |
2e78fa79 LP |
1362 | |
1363 | if (i->force) { | |
ecabcf8b | 1364 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1365 | r = symlink_atomic(resolved, i->path); |
ecabcf8b | 1366 | mac_selinux_create_file_clear(); |
2e78fa79 | 1367 | |
b3f5897f WD |
1368 | if (IN_SET(r, -EEXIST, -ENOTEMPTY)) { |
1369 | r = rm_rf(i->path, REMOVE_ROOT|REMOVE_PHYSICAL); | |
1370 | if (r < 0) | |
1371 | return log_error_errno(r, "rm -fr %s failed: %m", i->path); | |
1372 | ||
1373 | mac_selinux_create_file_prepare(i->path, S_IFLNK); | |
1374 | r = symlink(resolved, i->path) < 0 ? -errno : 0; | |
1375 | mac_selinux_create_file_clear(); | |
1376 | } | |
f647962d | 1377 | if (r < 0) |
5c5ccf12 | 1378 | return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
a542c4dc | 1379 | |
294929f8 | 1380 | creation = CREATION_FORCE; |
1554afae | 1381 | } else { |
582deb84 | 1382 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1383 | return 0; |
1384 | } | |
294929f8 ZJS |
1385 | } else |
1386 | creation = CREATION_EXISTING; | |
1387 | } else | |
a542c4dc | 1388 | |
294929f8 | 1389 | creation = CREATION_NORMAL; |
7a7d5db7 | 1390 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1391 | break; |
5c5ccf12 | 1392 | } |
468d726b LP |
1393 | |
1394 | case CREATE_BLOCK_DEVICE: | |
1395 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1396 | mode_t file_type; |
1397 | ||
1398 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1399 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1400 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1401 | that case to avoid noise, and we don't support |
1402 | virtualized devices in containers anyway. */ | |
1403 | ||
1404 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1405 | return 0; | |
1406 | } | |
1407 | ||
1554afae | 1408 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1409 | |
5c0d398d | 1410 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1411 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1412 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1413 | mac_selinux_create_file_clear(); |
5c0d398d | 1414 | } |
468d726b | 1415 | |
6555ad8e KS |
1416 | if (r < 0) { |
1417 | if (errno == EPERM) { | |
1418 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1419 | "skipping creation of device node %s.", i->path); | |
1420 | return 0; | |
1421 | } | |
1422 | ||
4a62c710 MS |
1423 | if (errno != EEXIST) |
1424 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1425 | |
a542c4dc | 1426 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1427 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1428 | |
1554afae LP |
1429 | if ((st.st_mode & S_IFMT) != file_type) { |
1430 | ||
1431 | if (i->force) { | |
1432 | ||
1433 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1434 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1435 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1436 | mac_selinux_create_file_clear(); |
1554afae LP |
1437 | } |
1438 | ||
f647962d | 1439 | if (r < 0) |
294929f8 ZJS |
1440 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1441 | creation = CREATION_FORCE; | |
1554afae LP |
1442 | } else { |
1443 | log_debug("%s is not a device node.", i->path); | |
1444 | return 0; | |
1445 | } | |
294929f8 ZJS |
1446 | } else |
1447 | creation = CREATION_EXISTING; | |
1448 | } else | |
1449 | creation = CREATION_NORMAL; | |
a542c4dc | 1450 | |
294929f8 | 1451 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1452 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1453 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1454 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1455 | |
b705ab6a | 1456 | r = path_set_perms(i, i->path); |
468d726b LP |
1457 | if (r < 0) |
1458 | return r; | |
1459 | ||
1460 | break; | |
1461 | } | |
1462 | ||
e73a03e0 | 1463 | case ADJUST_MODE: |
777b87e7 | 1464 | case RELABEL_PATH: |
b705ab6a | 1465 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1466 | if (r < 0) |
96ca8194 | 1467 | return r; |
777b87e7 MS |
1468 | break; |
1469 | ||
a8d88783 | 1470 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1471 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1472 | if (r < 0) |
1473 | return r; | |
ebf4e801 | 1474 | break; |
e73a03e0 | 1475 | |
ebf4e801 | 1476 | case SET_XATTR: |
b705ab6a ZJS |
1477 | r = glob_item(i, path_set_xattrs, false); |
1478 | if (r < 0) | |
1479 | return r; | |
1480 | break; | |
1481 | ||
1482 | case RECURSIVE_SET_XATTR: | |
1483 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1484 | if (r < 0) |
1485 | return r; | |
e73a03e0 | 1486 | break; |
f8eeeaf9 ZJS |
1487 | |
1488 | case SET_ACL: | |
b705ab6a | 1489 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1490 | if (r < 0) |
1491 | return r; | |
b705ab6a ZJS |
1492 | break; |
1493 | ||
1494 | case RECURSIVE_SET_ACL: | |
1495 | r = glob_item(i, path_set_acls, true); | |
1496 | if (r < 0) | |
1497 | return r; | |
1498 | break; | |
22c3a6ca | 1499 | |
88ec4dfa LP |
1500 | case SET_ATTRIBUTE: |
1501 | r = glob_item(i, path_set_attribute, false); | |
22c3a6ca GB |
1502 | if (r < 0) |
1503 | return r; | |
1504 | break; | |
1505 | ||
88ec4dfa LP |
1506 | case RECURSIVE_SET_ATTRIBUTE: |
1507 | r = glob_item(i, path_set_attribute, true); | |
22c3a6ca GB |
1508 | if (r < 0) |
1509 | return r; | |
1510 | break; | |
3b63d2d3 LP |
1511 | } |
1512 | ||
f05bc3f7 | 1513 | return 0; |
3b63d2d3 LP |
1514 | } |
1515 | ||
a0896123 | 1516 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1517 | int r; |
1518 | ||
1519 | assert(i); | |
1520 | ||
1521 | switch (i->type) { | |
1522 | ||
3b63d2d3 | 1523 | case REMOVE_PATH: |
4a62c710 | 1524 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1525 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1526 | |
1527 | break; | |
1528 | ||
1529 | case TRUNCATE_DIRECTORY: | |
1530 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1531 | /* FIXME: we probably should use dir_cleanup() here |
1532 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1533 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1534 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1535 | if (r < 0 && r != -ENOENT) |
1536 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1537 | |
1538 | break; | |
7fcb4b9b ZJS |
1539 | |
1540 | default: | |
1541 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1542 | } |
1543 | ||
1544 | return 0; | |
1545 | } | |
1546 | ||
a0896123 | 1547 | static int remove_item(Item *i) { |
b8bb3e8f LP |
1548 | assert(i); |
1549 | ||
582deb84 ZJS |
1550 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1551 | ||
b8bb3e8f LP |
1552 | switch (i->type) { |
1553 | ||
b8bb3e8f LP |
1554 | case REMOVE_PATH: |
1555 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1556 | case RECURSIVE_REMOVE_PATH: |
df8dee85 | 1557 | return glob_item(i, remove_item_instance, false); |
b8bb3e8f | 1558 | |
df8dee85 ZJS |
1559 | default: |
1560 | return 0; | |
1561 | } | |
b8bb3e8f LP |
1562 | } |
1563 | ||
78a92a5a | 1564 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1565 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1566 | struct stat s, ps; |
1567 | bool mountpoint; | |
78a92a5a | 1568 | usec_t cutoff, n; |
582deb84 | 1569 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1570 | |
1571 | assert(i); | |
1572 | ||
1573 | if (!i->age_set) | |
1574 | return 0; | |
1575 | ||
1576 | n = now(CLOCK_REALTIME); | |
1577 | if (n < i->age) | |
1578 | return 0; | |
1579 | ||
1580 | cutoff = n - i->age; | |
1581 | ||
df99a9ef | 1582 | d = opendir_nomod(instance); |
78a92a5a | 1583 | if (!d) { |
d710aaf7 | 1584 | if (IN_SET(errno, ENOENT, ENOTDIR)) { |
582deb84 | 1585 | log_debug_errno(errno, "Directory \"%s\": %m", instance); |
78a92a5a | 1586 | return 0; |
582deb84 | 1587 | } |
78a92a5a | 1588 | |
d710aaf7 | 1589 | return log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1590 | } |
1591 | ||
4a62c710 MS |
1592 | if (fstat(dirfd(d), &s) < 0) |
1593 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1594 | |
1595 | if (!S_ISDIR(s.st_mode)) { | |
1596 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1597 | return -ENOTDIR; |
78a92a5a MS |
1598 | } |
1599 | ||
4a62c710 MS |
1600 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1601 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a | 1602 | |
2bb158c1 | 1603 | mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
78a92a5a | 1604 | |
582deb84 ZJS |
1605 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1606 | mountpoint ? "mount point" : "directory", | |
1607 | instance, | |
1608 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1609 | ||
1610 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1611 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1612 | } |
1613 | ||
1614 | static int clean_item(Item *i) { | |
78a92a5a MS |
1615 | assert(i); |
1616 | ||
582deb84 ZJS |
1617 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1618 | ||
78a92a5a MS |
1619 | switch (i->type) { |
1620 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1621 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1622 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1623 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
df8dee85 | 1624 | case EMPTY_DIRECTORY: |
78a92a5a MS |
1625 | case TRUNCATE_DIRECTORY: |
1626 | case IGNORE_PATH: | |
849958d1 | 1627 | case COPY_FILES: |
78a92a5a | 1628 | clean_item_instance(i, i->path); |
df8dee85 | 1629 | return 0; |
78a92a5a | 1630 | case IGNORE_DIRECTORY_PATH: |
df8dee85 | 1631 | return glob_item(i, clean_item_instance, false); |
78a92a5a | 1632 | default: |
df8dee85 | 1633 | return 0; |
78a92a5a | 1634 | } |
78a92a5a MS |
1635 | } |
1636 | ||
3f93da98 ZJS |
1637 | static int process_item_array(ItemArray *array); |
1638 | ||
3b63d2d3 | 1639 | static int process_item(Item *i) { |
1e95893a | 1640 | int r, q, p, t = 0; |
9348f0e6 | 1641 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1642 | |
1643 | assert(i); | |
1644 | ||
1910cd0e LP |
1645 | if (i->done) |
1646 | return 0; | |
1647 | ||
1648 | i->done = true; | |
1649 | ||
9348f0e6 ZJS |
1650 | prefix = malloc(strlen(i->path) + 1); |
1651 | if (!prefix) | |
1652 | return log_oom(); | |
1653 | ||
1910cd0e | 1654 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1655 | ItemArray *j; |
1910cd0e | 1656 | |
ef43a391 | 1657 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
1658 | if (j) { |
1659 | int s; | |
1660 | ||
3f93da98 | 1661 | s = process_item_array(j); |
1db50423 ZJS |
1662 | if (s < 0 && t == 0) |
1663 | t = s; | |
1664 | } | |
1910cd0e LP |
1665 | } |
1666 | ||
655f2da0 N |
1667 | if (chase_symlinks(i->path, NULL, CHASE_NO_AUTOFS, NULL) == -EREMOTE) |
1668 | return t; | |
1669 | ||
3b63d2d3 | 1670 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1671 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1672 | p = arg_clean ? clean_item(i) : 0; |
1673 | ||
1db50423 ZJS |
1674 | return t < 0 ? t : |
1675 | r < 0 ? r : | |
1676 | q < 0 ? q : | |
1677 | p; | |
3b63d2d3 LP |
1678 | } |
1679 | ||
3f93da98 ZJS |
1680 | static int process_item_array(ItemArray *array) { |
1681 | unsigned n; | |
1682 | int r = 0, k; | |
753615e8 | 1683 | |
3f93da98 ZJS |
1684 | assert(array); |
1685 | ||
1686 | for (n = 0; n < array->count; n++) { | |
1687 | k = process_item(array->items + n); | |
1688 | if (k < 0 && r == 0) | |
1689 | r = k; | |
1690 | } | |
1691 | ||
1692 | return r; | |
1693 | } | |
3b63d2d3 | 1694 | |
3f93da98 ZJS |
1695 | static void item_free_contents(Item *i) { |
1696 | assert(i); | |
3b63d2d3 | 1697 | free(i->path); |
468d726b | 1698 | free(i->argument); |
ebf4e801 | 1699 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1700 | |
1701 | #ifdef HAVE_ACL | |
1702 | acl_free(i->acl_access); | |
1703 | acl_free(i->acl_default); | |
1704 | #endif | |
3b63d2d3 LP |
1705 | } |
1706 | ||
3f93da98 ZJS |
1707 | static void item_array_free(ItemArray *a) { |
1708 | unsigned n; | |
1709 | ||
1710 | if (!a) | |
1711 | return; | |
1712 | ||
1713 | for (n = 0; n < a->count; n++) | |
1714 | item_free_contents(a->items + n); | |
1715 | free(a->items); | |
1716 | free(a); | |
1717 | } | |
e2f2fb78 | 1718 | |
17493fa5 LP |
1719 | static int item_compare(const void *a, const void *b) { |
1720 | const Item *x = a, *y = b; | |
1721 | ||
1722 | /* Make sure that the ownership taking item is put first, so | |
1723 | * that we first create the node, and then can adjust it */ | |
1724 | ||
1725 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
1726 | return -1; | |
1727 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
1728 | return 1; | |
1729 | ||
1730 | return (int) x->type - (int) y->type; | |
1731 | } | |
1732 | ||
3f93da98 | 1733 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1734 | assert(a); |
1735 | assert(b); | |
3f93da98 | 1736 | assert(streq(a->path, b->path)); |
bfe95f35 | 1737 | |
3f93da98 ZJS |
1738 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1739 | /* check if the items are the same */ | |
1740 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1741 | |
3f93da98 ZJS |
1742 | a->uid_set == b->uid_set && |
1743 | a->uid == b->uid && | |
bfe95f35 | 1744 | |
3f93da98 ZJS |
1745 | a->gid_set == b->gid_set && |
1746 | a->gid == b->gid && | |
bfe95f35 | 1747 | |
3f93da98 ZJS |
1748 | a->mode_set == b->mode_set && |
1749 | a->mode == b->mode && | |
bfe95f35 | 1750 | |
3f93da98 ZJS |
1751 | a->age_set == b->age_set && |
1752 | a->age == b->age && | |
bfe95f35 | 1753 | |
3f93da98 | 1754 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1755 | |
3f93da98 | 1756 | a->keep_first_level == b->keep_first_level && |
468d726b | 1757 | |
3f93da98 | 1758 | a->major_minor == b->major_minor; |
468d726b | 1759 | |
bfe95f35 LP |
1760 | return true; |
1761 | } | |
1762 | ||
a2aced4a DR |
1763 | static bool should_include_path(const char *path) { |
1764 | char **prefix; | |
1765 | ||
abef3f91 | 1766 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
1767 | if (path_startswith(path, *prefix)) { |
1768 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
1769 | path, *prefix); | |
5c795114 | 1770 | return false; |
582deb84 | 1771 | } |
a2aced4a | 1772 | |
abef3f91 | 1773 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
1774 | if (path_startswith(path, *prefix)) { |
1775 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 1776 | return true; |
582deb84 | 1777 | } |
a2aced4a | 1778 | |
5c795114 DR |
1779 | /* no matches, so we should include this path only if we |
1780 | * have no whitelist at all */ | |
582deb84 ZJS |
1781 | if (strv_length(arg_include_prefixes) == 0) |
1782 | return true; | |
1783 | ||
1784 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
1785 | return false; | |
a2aced4a DR |
1786 | } |
1787 | ||
fba6e687 | 1788 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a | 1789 | |
cde684a2 | 1790 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1791 | _cleanup_(item_free_contents) Item i = {}; |
1792 | ItemArray *existing; | |
ef43a391 | 1793 | OrderedHashmap *h; |
657cf7f4 | 1794 | int r, pos; |
5f255144 | 1795 | bool force = false, boot = false; |
3b63d2d3 LP |
1796 | |
1797 | assert(fname); | |
1798 | assert(line >= 1); | |
1799 | assert(buffer); | |
1800 | ||
68685607 | 1801 | r = extract_many_words( |
4034a06d | 1802 | &buffer, |
68685607 | 1803 | NULL, |
12ba2c44 | 1804 | EXTRACT_QUOTES, |
4034a06d LP |
1805 | &action, |
1806 | &path, | |
1807 | &mode, | |
1808 | &user, | |
1809 | &group, | |
1810 | &age, | |
1811 | NULL); | |
657cf7f4 | 1812 | if (r < 0) |
1813 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); | |
1814 | else if (r < 2) { | |
3b63d2d3 | 1815 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1816 | return -EIO; |
5008d581 LP |
1817 | } |
1818 | ||
aa5f6817 | 1819 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
1820 | i.argument = strdup(buffer); |
1821 | if (!i.argument) | |
1822 | return log_oom(); | |
1823 | } | |
1824 | ||
2e78fa79 LP |
1825 | if (isempty(action)) { |
1826 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1827 | return -EINVAL; |
2e78fa79 LP |
1828 | } |
1829 | ||
5f255144 ZJS |
1830 | for (pos = 1; action[pos]; pos++) { |
1831 | if (action[pos] == '!' && !boot) | |
1832 | boot = true; | |
1833 | else if (action[pos] == '+' && !force) | |
1834 | force = true; | |
1835 | else { | |
1836 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1837 | fname, line, action); | |
1838 | return -EINVAL; | |
1839 | } | |
2e78fa79 LP |
1840 | } |
1841 | ||
582deb84 ZJS |
1842 | if (boot && !arg_boot) { |
1843 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
1844 | action, path); | |
c4708f13 | 1845 | return 0; |
582deb84 | 1846 | } |
c4708f13 | 1847 | |
3f93da98 ZJS |
1848 | i.type = action[0]; |
1849 | i.force = force; | |
2e78fa79 | 1850 | |
3f93da98 | 1851 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1852 | if (r < 0) { |
1853 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1854 | return r; | |
1855 | } | |
1856 | ||
3f93da98 | 1857 | switch (i.type) { |
468d726b | 1858 | |
777b87e7 | 1859 | case CREATE_DIRECTORY: |
d7b8eec7 | 1860 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1861 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1862 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
df8dee85 | 1863 | case EMPTY_DIRECTORY: |
777b87e7 MS |
1864 | case TRUNCATE_DIRECTORY: |
1865 | case CREATE_FIFO: | |
1866 | case IGNORE_PATH: | |
78a92a5a | 1867 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1868 | case REMOVE_PATH: |
1869 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1870 | case ADJUST_MODE: |
777b87e7 MS |
1871 | case RELABEL_PATH: |
1872 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 1873 | if (i.argument) |
bd550f78 | 1874 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
1875 | |
1876 | break; | |
1877 | ||
1878 | case CREATE_FILE: | |
1879 | case TRUNCATE_FILE: | |
777b87e7 | 1880 | break; |
468d726b LP |
1881 | |
1882 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1883 | if (!i.argument) { |
1884 | i.argument = strappend("/usr/share/factory/", i.path); | |
1885 | if (!i.argument) | |
2f3b873a | 1886 | return log_oom(); |
468d726b LP |
1887 | } |
1888 | break; | |
1889 | ||
31ed59c5 | 1890 | case WRITE_FILE: |
3f93da98 | 1891 | if (!i.argument) { |
31ed59c5 | 1892 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1893 | return -EBADMSG; |
31ed59c5 LP |
1894 | } |
1895 | break; | |
1896 | ||
849958d1 | 1897 | case COPY_FILES: |
3f93da98 ZJS |
1898 | if (!i.argument) { |
1899 | i.argument = strappend("/usr/share/factory/", i.path); | |
1900 | if (!i.argument) | |
2f3b873a | 1901 | return log_oom(); |
3f93da98 | 1902 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1903 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1904 | return -EBADMSG; | |
1905 | } | |
1906 | ||
3f93da98 | 1907 | path_kill_slashes(i.argument); |
849958d1 LP |
1908 | break; |
1909 | ||
468d726b LP |
1910 | case CREATE_CHAR_DEVICE: |
1911 | case CREATE_BLOCK_DEVICE: { | |
1912 | unsigned major, minor; | |
1913 | ||
3f93da98 | 1914 | if (!i.argument) { |
468d726b | 1915 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1916 | return -EBADMSG; |
468d726b LP |
1917 | } |
1918 | ||
3f93da98 ZJS |
1919 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1920 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1921 | return -EBADMSG; |
468d726b LP |
1922 | } |
1923 | ||
3f93da98 | 1924 | i.major_minor = makedev(major, minor); |
468d726b LP |
1925 | break; |
1926 | } | |
1927 | ||
ebf4e801 | 1928 | case SET_XATTR: |
b705ab6a | 1929 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1930 | if (!i.argument) { |
ebf4e801 MW |
1931 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1932 | return -EBADMSG; | |
1933 | } | |
bd550f78 | 1934 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
1935 | if (r < 0) |
1936 | return r; | |
1937 | break; | |
1938 | ||
f8eeeaf9 | 1939 | case SET_ACL: |
b705ab6a | 1940 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1941 | if (!i.argument) { |
1942 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1943 | return -EBADMSG; | |
1944 | } | |
bd550f78 | 1945 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
1946 | if (r < 0) |
1947 | return r; | |
1948 | break; | |
1949 | ||
88ec4dfa LP |
1950 | case SET_ATTRIBUTE: |
1951 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 1952 | if (!i.argument) { |
88ec4dfa | 1953 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
1954 | return -EBADMSG; |
1955 | } | |
bd550f78 | 1956 | r = parse_attribute_from_arg(&i); |
22c3a6ca GB |
1957 | if (r < 0) |
1958 | return r; | |
1959 | break; | |
1960 | ||
777b87e7 | 1961 | default: |
582deb84 | 1962 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
7f2c1f4d | 1963 | return -EBADMSG; |
3b63d2d3 | 1964 | } |
468d726b | 1965 | |
3f93da98 ZJS |
1966 | if (!path_is_absolute(i.path)) { |
1967 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1968 | return -EBADMSG; |
3b63d2d3 LP |
1969 | } |
1970 | ||
3f93da98 | 1971 | path_kill_slashes(i.path); |
3b63d2d3 | 1972 | |
3f93da98 | 1973 | if (!should_include_path(i.path)) |
7f2c1f4d | 1974 | return 0; |
5008d581 | 1975 | |
cf9a4abd | 1976 | if (arg_root) { |
cde684a2 LP |
1977 | char *p; |
1978 | ||
1d13f648 | 1979 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
1980 | if (!p) |
1981 | return log_oom(); | |
1982 | ||
3f93da98 ZJS |
1983 | free(i.path); |
1984 | i.path = p; | |
cf9a4abd MM |
1985 | } |
1986 | ||
90937fe3 | 1987 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
1988 | const char *u = user; |
1989 | ||
3f93da98 | 1990 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 1991 | if (r < 0) { |
3b63d2d3 | 1992 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1993 | return r; |
3b63d2d3 LP |
1994 | } |
1995 | ||
3f93da98 | 1996 | i.uid_set = true; |
3b63d2d3 LP |
1997 | } |
1998 | ||
90937fe3 | 1999 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
2000 | const char *g = group; |
2001 | ||
3f93da98 | 2002 | r = get_group_creds(&g, &i.gid); |
4b67834e | 2003 | if (r < 0) { |
3b63d2d3 | 2004 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 2005 | return r; |
3b63d2d3 LP |
2006 | } |
2007 | ||
3f93da98 | 2008 | i.gid_set = true; |
3b63d2d3 LP |
2009 | } |
2010 | ||
90937fe3 | 2011 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 2012 | const char *mm = mode; |
3b63d2d3 LP |
2013 | unsigned m; |
2014 | ||
abef3f91 | 2015 | if (*mm == '~') { |
3f93da98 | 2016 | i.mask_perms = true; |
abef3f91 LP |
2017 | mm++; |
2018 | } | |
2019 | ||
2ff7b0a5 | 2020 | if (parse_mode(mm, &m) < 0) { |
3b63d2d3 | 2021 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2022 | return -EBADMSG; |
3b63d2d3 LP |
2023 | } |
2024 | ||
3f93da98 ZJS |
2025 | i.mode = m; |
2026 | i.mode_set = true; | |
3b63d2d3 | 2027 | } else |
5fb13eb5 | 2028 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2029 | |
90937fe3 | 2030 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2031 | const char *a = age; |
2032 | ||
2033 | if (*a == '~') { | |
3f93da98 | 2034 | i.keep_first_level = true; |
24f3a374 LP |
2035 | a++; |
2036 | } | |
2037 | ||
3f93da98 | 2038 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 2039 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2040 | return -EBADMSG; |
3b63d2d3 LP |
2041 | } |
2042 | ||
3f93da98 | 2043 | i.age_set = true; |
3b63d2d3 LP |
2044 | } |
2045 | ||
3f93da98 | 2046 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2047 | |
ef43a391 | 2048 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2049 | if (existing) { |
3f93da98 ZJS |
2050 | unsigned n; |
2051 | ||
2052 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2053 | if (!item_compatible(existing->items + n, &i)) { |
505ef0e3 | 2054 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 2055 | fname, line, i.path); |
6487ada8 MP |
2056 | return 0; |
2057 | } | |
ebf4e801 MW |
2058 | } |
2059 | } else { | |
3f93da98 | 2060 | existing = new0(ItemArray, 1); |
ef43a391 | 2061 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2062 | if (r < 0) |
2063 | return log_oom(); | |
bfe95f35 LP |
2064 | } |
2065 | ||
3f93da98 ZJS |
2066 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2067 | return log_oom(); | |
5008d581 | 2068 | |
3f93da98 | 2069 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2070 | |
2071 | /* Sort item array, to enforce stable ordering of application */ | |
2072 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2073 | |
3f93da98 | 2074 | zero(i); |
7f2c1f4d | 2075 | return 0; |
5008d581 LP |
2076 | } |
2077 | ||
601185b4 | 2078 | static void help(void) { |
522d4a49 LP |
2079 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2080 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2081 | " -h --help Show this help\n" |
eb9da376 | 2082 | " --version Show package version\n" |
5c795114 DR |
2083 | " --create Create marked files/directories\n" |
2084 | " --clean Clean up marked directories\n" | |
2085 | " --remove Remove marked files/directories\n" | |
81815651 | 2086 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2087 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2088 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
cf9a4abd | 2089 | " --root=PATH Operate on an alternate filesystem root\n", |
3b63d2d3 | 2090 | program_invocation_short_name); |
3b63d2d3 LP |
2091 | } |
2092 | ||
2093 | static int parse_argv(int argc, char *argv[]) { | |
2094 | ||
2095 | enum { | |
eb9da376 | 2096 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
2097 | ARG_CREATE, |
2098 | ARG_CLEAN, | |
fba6e687 | 2099 | ARG_REMOVE, |
81815651 | 2100 | ARG_BOOT, |
5c795114 DR |
2101 | ARG_PREFIX, |
2102 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2103 | ARG_ROOT, |
3b63d2d3 LP |
2104 | }; |
2105 | ||
2106 | static const struct option options[] = { | |
5c795114 | 2107 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 2108 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
2109 | { "create", no_argument, NULL, ARG_CREATE }, |
2110 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2111 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2112 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2113 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2114 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2115 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 2116 | {} |
3b63d2d3 LP |
2117 | }; |
2118 | ||
0f474365 | 2119 | int c, r; |
3b63d2d3 LP |
2120 | |
2121 | assert(argc >= 0); | |
2122 | assert(argv); | |
2123 | ||
601185b4 | 2124 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2125 | |
2126 | switch (c) { | |
2127 | ||
2128 | case 'h': | |
601185b4 ZJS |
2129 | help(); |
2130 | return 0; | |
eb9da376 LP |
2131 | |
2132 | case ARG_VERSION: | |
3f6fd1ba | 2133 | return version(); |
3b63d2d3 LP |
2134 | |
2135 | case ARG_CREATE: | |
2136 | arg_create = true; | |
2137 | break; | |
2138 | ||
2139 | case ARG_CLEAN: | |
2140 | arg_clean = true; | |
2141 | break; | |
2142 | ||
2143 | case ARG_REMOVE: | |
2144 | arg_remove = true; | |
2145 | break; | |
2146 | ||
81815651 ZJS |
2147 | case ARG_BOOT: |
2148 | arg_boot = true; | |
c4708f13 ZJS |
2149 | break; |
2150 | ||
fba6e687 | 2151 | case ARG_PREFIX: |
7bc040fa | 2152 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2153 | return log_oom(); |
fba6e687 LP |
2154 | break; |
2155 | ||
5c795114 | 2156 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2157 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2158 | return log_oom(); |
2159 | break; | |
2160 | ||
cf9a4abd | 2161 | case ARG_ROOT: |
0f03c2a4 | 2162 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 2163 | if (r < 0) |
0f03c2a4 | 2164 | return r; |
cf9a4abd MM |
2165 | break; |
2166 | ||
3b63d2d3 LP |
2167 | case '?': |
2168 | return -EINVAL; | |
2169 | ||
2170 | default: | |
eb9da376 | 2171 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2172 | } |
3b63d2d3 LP |
2173 | |
2174 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 2175 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2176 | return -EINVAL; |
2177 | } | |
2178 | ||
2179 | return 1; | |
2180 | } | |
2181 | ||
fba6e687 | 2182 | static int read_config_file(const char *fn, bool ignore_enoent) { |
f7ac1ed2 ZJS |
2183 | _cleanup_fclose_ FILE *_f = NULL; |
2184 | FILE *f; | |
1731e34a | 2185 | char line[LINE_MAX]; |
78a92a5a | 2186 | Iterator iterator; |
1731e34a | 2187 | unsigned v = 0; |
78a92a5a | 2188 | Item *i; |
4e68ec18 | 2189 | int r = 0; |
fba6e687 LP |
2190 | |
2191 | assert(fn); | |
2192 | ||
f7ac1ed2 ZJS |
2193 | if (streq(fn, "-")) { |
2194 | log_debug("Reading config from stdin."); | |
2195 | fn = "<stdin>"; | |
2196 | f = stdin; | |
2197 | } else { | |
2198 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &_f); | |
2199 | if (r < 0) { | |
2200 | if (ignore_enoent && r == -ENOENT) { | |
2201 | log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn); | |
2202 | return 0; | |
2203 | } | |
fba6e687 | 2204 | |
f7ac1ed2 ZJS |
2205 | return log_error_errno(r, "Failed to open '%s': %m", fn); |
2206 | } | |
2207 | log_debug("Reading config file \"%s\".", fn); | |
2208 | f = _f; | |
fba6e687 LP |
2209 | } |
2210 | ||
1731e34a LP |
2211 | FOREACH_LINE(line, f, break) { |
2212 | char *l; | |
fba6e687 LP |
2213 | int k; |
2214 | ||
fba6e687 LP |
2215 | v++; |
2216 | ||
2217 | l = strstrip(line); | |
4c701096 | 2218 | if (IN_SET(*l, 0, '#')) |
fba6e687 LP |
2219 | continue; |
2220 | ||
1731e34a LP |
2221 | k = parse_line(fn, v, l); |
2222 | if (k < 0 && r == 0) | |
2223 | r = k; | |
fba6e687 LP |
2224 | } |
2225 | ||
78a92a5a | 2226 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2227 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2228 | Iterator iter; |
2229 | Item *j, *candidate_item = NULL; | |
2230 | ||
2231 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2232 | continue; | |
2233 | ||
ef43a391 | 2234 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2235 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2236 | continue; |
2237 | ||
2238 | if (path_equal(j->path, i->path)) { | |
2239 | candidate_item = j; | |
2240 | break; | |
2241 | } | |
2242 | ||
2243 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2244 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2245 | candidate_item = j; | |
2246 | } | |
2247 | ||
9ed2a35e | 2248 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2249 | i->age = candidate_item->age; |
2250 | i->age_set = true; | |
2251 | } | |
2252 | } | |
2253 | ||
fba6e687 | 2254 | if (ferror(f)) { |
56f64d95 | 2255 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2256 | if (r == 0) |
2257 | r = -EIO; | |
2258 | } | |
2259 | ||
fba6e687 LP |
2260 | return r; |
2261 | } | |
2262 | ||
5008d581 | 2263 | int main(int argc, char *argv[]) { |
fabe5c0e | 2264 | int r, k; |
3f93da98 | 2265 | ItemArray *a; |
3b63d2d3 LP |
2266 | Iterator iterator; |
2267 | ||
fdcad0c2 LP |
2268 | r = parse_argv(argc, argv); |
2269 | if (r <= 0) | |
753615e8 | 2270 | goto finish; |
5008d581 | 2271 | |
eb0ca9eb | 2272 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2273 | log_parse_environment(); |
2274 | log_open(); | |
2275 | ||
4c12626c LP |
2276 | umask(0022); |
2277 | ||
c3dacc8b | 2278 | mac_selinux_init(); |
5008d581 | 2279 | |
ef43a391 LP |
2280 | items = ordered_hashmap_new(&string_hash_ops); |
2281 | globs = ordered_hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
2282 | |
2283 | if (!items || !globs) { | |
fabe5c0e | 2284 | r = log_oom(); |
3b63d2d3 LP |
2285 | goto finish; |
2286 | } | |
2287 | ||
fabe5c0e | 2288 | r = 0; |
5008d581 | 2289 | |
fba6e687 LP |
2290 | if (optind < argc) { |
2291 | int j; | |
5008d581 | 2292 | |
9125670f | 2293 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
2294 | k = read_config_file(argv[j], false); |
2295 | if (k < 0 && r == 0) | |
2296 | r = k; | |
9125670f | 2297 | } |
5008d581 | 2298 | |
fba6e687 | 2299 | } else { |
fabe5c0e LP |
2300 | _cleanup_strv_free_ char **files = NULL; |
2301 | char **f; | |
5008d581 | 2302 | |
b5084605 | 2303 | r = conf_files_list_nulstr(&files, ".conf", arg_root, 0, conf_file_dirs); |
44143309 | 2304 | if (r < 0) { |
da927ba9 | 2305 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
2306 | goto finish; |
2307 | } | |
3b63d2d3 | 2308 | |
772f8371 | 2309 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
2310 | k = read_config_file(*f, true); |
2311 | if (k < 0 && r == 0) | |
2312 | r = k; | |
5008d581 | 2313 | } |
772f8371 | 2314 | } |
5008d581 | 2315 | |
17493fa5 LP |
2316 | /* The non-globbing ones usually create things, hence we apply |
2317 | * them first */ | |
ef43a391 | 2318 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 2319 | k = process_item_array(a); |
1db50423 ZJS |
2320 | if (k < 0 && r == 0) |
2321 | r = k; | |
2322 | } | |
b8bb3e8f | 2323 | |
17493fa5 LP |
2324 | /* The globbing ones usually alter things, hence we apply them |
2325 | * second. */ | |
ef43a391 | 2326 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 2327 | k = process_item_array(a); |
1db50423 ZJS |
2328 | if (k < 0 && r == 0) |
2329 | r = k; | |
2330 | } | |
3b63d2d3 | 2331 | |
5008d581 | 2332 | finish: |
ef43a391 | 2333 | while ((a = ordered_hashmap_steal_first(items))) |
3f93da98 | 2334 | item_array_free(a); |
3b63d2d3 | 2335 | |
ef43a391 | 2336 | while ((a = ordered_hashmap_steal_first(globs))) |
3f93da98 | 2337 | item_array_free(a); |
17b90525 | 2338 | |
ef43a391 LP |
2339 | ordered_hashmap_free(items); |
2340 | ordered_hashmap_free(globs); | |
5008d581 | 2341 | |
7bc040fa LP |
2342 | free(arg_include_prefixes); |
2343 | free(arg_exclude_prefixes); | |
cf9a4abd | 2344 | free(arg_root); |
a2aced4a | 2345 | |
17b90525 LP |
2346 | set_free_free(unix_sockets); |
2347 | ||
cc56fafe | 2348 | mac_selinux_finish(); |
29003cff | 2349 | |
fabe5c0e | 2350 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 2351 | } |