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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
5008d581 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
3b63d2d3 | 5 | Copyright 2010 Lennart Poettering, Kay Sievers |
3f93da98 | 6 | Copyright 2015 Zbigniew Jędrzejewski-Szmek |
5008d581 LP |
7 | ***/ |
8 | ||
5008d581 | 9 | #include <errno.h> |
3f6fd1ba LP |
10 | #include <fcntl.h> |
11 | #include <fnmatch.h> | |
12 | #include <getopt.h> | |
13 | #include <glob.h> | |
5008d581 | 14 | #include <limits.h> |
3f6fd1ba LP |
15 | #include <linux/fs.h> |
16 | #include <stdbool.h> | |
17 | #include <stddef.h> | |
3b63d2d3 LP |
18 | #include <stdio.h> |
19 | #include <stdlib.h> | |
3f6fd1ba | 20 | #include <string.h> |
505ef0e3 | 21 | #include <sys/stat.h> |
ebf4e801 | 22 | #include <sys/xattr.h> |
d9daae55 | 23 | #include <sysexits.h> |
3f6fd1ba LP |
24 | #include <time.h> |
25 | #include <unistd.h> | |
5008d581 | 26 | |
5a8575ef ZJS |
27 | #include "sd-path.h" |
28 | ||
3f6fd1ba | 29 | #include "acl-util.h" |
b5efdb8a | 30 | #include "alloc-util.h" |
3f6fd1ba | 31 | #include "btrfs-util.h" |
430f0182 | 32 | #include "capability-util.h" |
c8b3094d | 33 | #include "chattr-util.h" |
3f6fd1ba LP |
34 | #include "conf-files.h" |
35 | #include "copy.h" | |
a0f29c76 | 36 | #include "def.h" |
8fb3f009 | 37 | #include "dirent-util.h" |
4f5dd394 | 38 | #include "escape.h" |
3ffd4af2 | 39 | #include "fd-util.h" |
0d39fa9c | 40 | #include "fileio.h" |
f97b34a6 | 41 | #include "format-util.h" |
f4f15635 | 42 | #include "fs-util.h" |
7d50b32a | 43 | #include "glob-util.h" |
c004493c | 44 | #include "io-util.h" |
3f6fd1ba | 45 | #include "label.h" |
5008d581 | 46 | #include "log.h" |
54693d9b | 47 | #include "macro.h" |
d39efe74 | 48 | #include "missing.h" |
49e942b2 | 49 | #include "mkdir.h" |
4e036b7a | 50 | #include "mount-util.h" |
6bedfcbb | 51 | #include "parse-util.h" |
f2b5ca0e | 52 | #include "path-lookup.h" |
9eb977db | 53 | #include "path-util.h" |
c6878637 | 54 | #include "rm-rf.h" |
d7b8eec7 | 55 | #include "selinux-util.h" |
3f6fd1ba LP |
56 | #include "set.h" |
57 | #include "specifier.h" | |
8fcde012 | 58 | #include "stat-util.h" |
15a5e950 | 59 | #include "stdio-util.h" |
8b43440b | 60 | #include "string-table.h" |
07630cea | 61 | #include "string-util.h" |
3f6fd1ba | 62 | #include "strv.h" |
ceaaeb9b | 63 | #include "terminal-util.h" |
affb60b1 | 64 | #include "umask-util.h" |
b1d4f8e1 | 65 | #include "user-util.h" |
3f6fd1ba | 66 | #include "util.h" |
5008d581 | 67 | |
01000479 | 68 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 69 | * them in the file system. This is intended to be used to create |
db019b8d KS |
70 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
71 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 72 | |
66ccd038 | 73 | typedef enum ItemType { |
b8bb3e8f | 74 | /* These ones take file names */ |
3b63d2d3 LP |
75 | CREATE_FILE = 'f', |
76 | TRUNCATE_FILE = 'F', | |
77 | CREATE_DIRECTORY = 'd', | |
78 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 79 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
80 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
81 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 82 | CREATE_FIFO = 'p', |
468d726b LP |
83 | CREATE_SYMLINK = 'L', |
84 | CREATE_CHAR_DEVICE = 'c', | |
85 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 86 | COPY_FILES = 'C', |
b8bb3e8f LP |
87 | |
88 | /* These ones take globs */ | |
17493fa5 | 89 | WRITE_FILE = 'w', |
df8dee85 | 90 | EMPTY_DIRECTORY = 'e', |
b705ab6a ZJS |
91 | SET_XATTR = 't', |
92 | RECURSIVE_SET_XATTR = 'T', | |
93 | SET_ACL = 'a', | |
94 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
95 | SET_ATTRIBUTE = 'h', |
96 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 97 | IGNORE_PATH = 'x', |
78a92a5a | 98 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 99 | REMOVE_PATH = 'r', |
a8d88783 | 100 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 101 | RELABEL_PATH = 'z', |
e73a03e0 | 102 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 103 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 104 | } ItemType; |
3b63d2d3 LP |
105 | |
106 | typedef struct Item { | |
66ccd038 | 107 | ItemType type; |
3b63d2d3 LP |
108 | |
109 | char *path; | |
468d726b | 110 | char *argument; |
ebf4e801 | 111 | char **xattrs; |
349cc4a5 | 112 | #if HAVE_ACL |
f8eeeaf9 ZJS |
113 | acl_t acl_access; |
114 | acl_t acl_default; | |
115 | #endif | |
5008d581 LP |
116 | uid_t uid; |
117 | gid_t gid; | |
3b63d2d3 LP |
118 | mode_t mode; |
119 | usec_t age; | |
120 | ||
468d726b | 121 | dev_t major_minor; |
88ec4dfa LP |
122 | unsigned attribute_value; |
123 | unsigned attribute_mask; | |
468d726b | 124 | |
3b63d2d3 LP |
125 | bool uid_set:1; |
126 | bool gid_set:1; | |
127 | bool mode_set:1; | |
128 | bool age_set:1; | |
abef3f91 | 129 | bool mask_perms:1; |
88ec4dfa | 130 | bool attribute_set:1; |
24f3a374 LP |
131 | |
132 | bool keep_first_level:1; | |
1910cd0e | 133 | |
2e78fa79 LP |
134 | bool force:1; |
135 | ||
1910cd0e | 136 | bool done:1; |
3b63d2d3 LP |
137 | } Item; |
138 | ||
3f93da98 ZJS |
139 | typedef struct ItemArray { |
140 | Item *items; | |
141 | size_t count; | |
142 | size_t size; | |
143 | } ItemArray; | |
144 | ||
5a8575ef ZJS |
145 | typedef enum DirectoryType { |
146 | DIRECTORY_RUNTIME = 0, | |
147 | DIRECTORY_STATE, | |
148 | DIRECTORY_CACHE, | |
149 | DIRECTORY_LOGS, | |
150 | _DIRECTORY_TYPE_MAX, | |
151 | } DirectoryType; | |
152 | ||
ceaaeb9b | 153 | static bool arg_cat_config = false; |
f2b5ca0e | 154 | static bool arg_user = false; |
3b63d2d3 LP |
155 | static bool arg_create = false; |
156 | static bool arg_clean = false; | |
157 | static bool arg_remove = false; | |
81815651 | 158 | static bool arg_boot = false; |
3b63d2d3 | 159 | |
7bc040fa LP |
160 | static char **arg_include_prefixes = NULL; |
161 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 162 | static char *arg_root = NULL; |
a6d8474f | 163 | static char *arg_replace = NULL; |
fba6e687 | 164 | |
3b63d2d3 LP |
165 | #define MAX_DEPTH 256 |
166 | ||
ef43a391 | 167 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
168 | static Set *unix_sockets = NULL; |
169 | ||
4cef1923 | 170 | static int specifier_machine_id_safe(char specifier, void *data, void *userdata, char **ret); |
5a8575ef | 171 | static int specifier_directory(char specifier, void *data, void *userdata, char **ret); |
4cef1923 | 172 | |
bd550f78 | 173 | static const Specifier specifier_table[] = { |
4cef1923 | 174 | { 'm', specifier_machine_id_safe, NULL }, |
5a8575ef ZJS |
175 | { 'b', specifier_boot_id, NULL }, |
176 | { 'H', specifier_host_name, NULL }, | |
177 | { 'v', specifier_kernel_release, NULL }, | |
178 | ||
179 | { 'U', specifier_user_id, NULL }, | |
180 | { 'u', specifier_user_name, NULL }, | |
181 | { 'h', specifier_user_home, NULL }, | |
b294e594 | 182 | |
5a8575ef ZJS |
183 | { 't', specifier_directory, UINT_TO_PTR(DIRECTORY_RUNTIME) }, |
184 | { 'S', specifier_directory, UINT_TO_PTR(DIRECTORY_STATE) }, | |
185 | { 'C', specifier_directory, UINT_TO_PTR(DIRECTORY_CACHE) }, | |
186 | { 'L', specifier_directory, UINT_TO_PTR(DIRECTORY_LOGS) }, | |
b294e594 LP |
187 | { 'T', specifier_tmp_dir, NULL }, |
188 | { 'V', specifier_var_tmp_dir, NULL }, | |
bd550f78 LP |
189 | {} |
190 | }; | |
191 | ||
4cef1923 FB |
192 | static int specifier_machine_id_safe(char specifier, void *data, void *userdata, char **ret) { |
193 | int r; | |
194 | ||
d8dab757 FB |
195 | /* If /etc/machine_id is missing or empty (e.g. in a chroot environment) |
196 | * return a recognizable error so that the caller can skip the rule | |
4cef1923 FB |
197 | * gracefully. */ |
198 | ||
199 | r = specifier_machine_id(specifier, data, userdata, ret); | |
d8dab757 | 200 | if (IN_SET(r, -ENOENT, -ENOMEDIUM)) |
5a8575ef | 201 | return -ENXIO; |
4cef1923 FB |
202 | |
203 | return r; | |
204 | } | |
205 | ||
5a8575ef ZJS |
206 | static int specifier_directory(char specifier, void *data, void *userdata, char **ret) { |
207 | struct table_entry { | |
208 | uint64_t type; | |
209 | const char *suffix; | |
210 | }; | |
211 | ||
212 | static const struct table_entry paths_system[] = { | |
213 | [DIRECTORY_RUNTIME] = { SD_PATH_SYSTEM_RUNTIME }, | |
214 | [DIRECTORY_STATE] = { SD_PATH_SYSTEM_STATE_PRIVATE }, | |
215 | [DIRECTORY_CACHE] = { SD_PATH_SYSTEM_STATE_CACHE }, | |
216 | [DIRECTORY_LOGS] = { SD_PATH_SYSTEM_STATE_LOGS }, | |
217 | }; | |
218 | ||
219 | static const struct table_entry paths_user[] = { | |
220 | [DIRECTORY_RUNTIME] = { SD_PATH_USER_RUNTIME }, | |
221 | [DIRECTORY_STATE] = { SD_PATH_USER_CONFIGURATION }, | |
222 | [DIRECTORY_CACHE] = { SD_PATH_USER_STATE_CACHE }, | |
223 | [DIRECTORY_LOGS] = { SD_PATH_USER_CONFIGURATION, "log" }, | |
224 | }; | |
225 | ||
226 | unsigned i; | |
227 | const struct table_entry *paths; | |
228 | ||
229 | assert_cc(ELEMENTSOF(paths_system) == ELEMENTSOF(paths_user)); | |
230 | paths = arg_user ? paths_user : paths_system; | |
231 | ||
232 | i = PTR_TO_UINT(data); | |
233 | assert(i < ELEMENTSOF(paths_system)); | |
234 | ||
235 | return sd_path_home(paths[i].type, paths[i].suffix, ret); | |
236 | } | |
237 | ||
4cef1923 FB |
238 | static int log_unresolvable_specifier(const char *filename, unsigned line) { |
239 | static bool notified = false; | |
240 | ||
5a8575ef ZJS |
241 | /* In system mode, this is called when /etc is not fully initialized (e.g. |
242 | * in a chroot environment) where some specifiers are unresolvable. In user | |
243 | * mode, this is called when some variables are not defined. These cases are | |
244 | * not considered as an error so log at LOG_NOTICE only for the first time | |
245 | * and then downgrade this to LOG_DEBUG for the rest. */ | |
4cef1923 FB |
246 | |
247 | log_full(notified ? LOG_DEBUG : LOG_NOTICE, | |
5a8575ef ZJS |
248 | "[%s:%u] Failed to resolve specifier: %s, skipping", |
249 | filename, line, | |
250 | arg_user ? "Required $XDG_... variable not defined" : "uninitialized /etc detected"); | |
4cef1923 FB |
251 | |
252 | if (!notified) | |
253 | log_notice("All rules containing unresolvable specifiers will be skipped."); | |
254 | ||
255 | notified = true; | |
256 | return 0; | |
257 | } | |
258 | ||
f2b5ca0e ZJS |
259 | static int user_config_paths(char*** ret) { |
260 | _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL; | |
261 | _cleanup_free_ char *persistent_config = NULL, *runtime_config = NULL, *data_home = NULL; | |
262 | _cleanup_strv_free_ char **res = NULL; | |
263 | int r; | |
264 | ||
265 | r = xdg_user_dirs(&config_dirs, &data_dirs); | |
266 | if (r < 0) | |
267 | return r; | |
268 | ||
269 | r = xdg_user_config_dir(&persistent_config, "/user-tmpfiles.d"); | |
270 | if (r < 0 && r != -ENXIO) | |
271 | return r; | |
272 | ||
273 | r = xdg_user_runtime_dir(&runtime_config, "/user-tmpfiles.d"); | |
274 | if (r < 0 && r != -ENXIO) | |
275 | return r; | |
276 | ||
277 | r = xdg_user_data_dir(&data_home, "/user-tmpfiles.d"); | |
278 | if (r < 0 && r != -ENXIO) | |
279 | return r; | |
280 | ||
281 | r = strv_extend_strv_concat(&res, config_dirs, "/user-tmpfiles.d"); | |
282 | if (r < 0) | |
283 | return r; | |
284 | ||
285 | r = strv_extend(&res, persistent_config); | |
286 | if (r < 0) | |
287 | return r; | |
288 | ||
289 | r = strv_extend(&res, runtime_config); | |
290 | if (r < 0) | |
291 | return r; | |
292 | ||
293 | r = strv_extend(&res, data_home); | |
294 | if (r < 0) | |
295 | return r; | |
296 | ||
297 | r = strv_extend_strv_concat(&res, data_dirs, "/user-tmpfiles.d"); | |
298 | if (r < 0) | |
299 | return r; | |
300 | ||
301 | r = path_strv_make_absolute_cwd(res); | |
302 | if (r < 0) | |
303 | return r; | |
304 | ||
ae2a15bc | 305 | *ret = TAKE_PTR(res); |
f2b5ca0e ZJS |
306 | return 0; |
307 | } | |
308 | ||
66ccd038 | 309 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
310 | return IN_SET(t, |
311 | WRITE_FILE, | |
312 | IGNORE_PATH, | |
313 | IGNORE_DIRECTORY_PATH, | |
314 | REMOVE_PATH, | |
315 | RECURSIVE_REMOVE_PATH, | |
df8dee85 | 316 | EMPTY_DIRECTORY, |
e73a03e0 | 317 | ADJUST_MODE, |
cde684a2 | 318 | RELABEL_PATH, |
b705ab6a ZJS |
319 | RECURSIVE_RELABEL_PATH, |
320 | SET_XATTR, | |
321 | RECURSIVE_SET_XATTR, | |
322 | SET_ACL, | |
34f64536 LP |
323 | RECURSIVE_SET_ACL, |
324 | SET_ATTRIBUTE, | |
325 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
326 | } |
327 | ||
3f93da98 ZJS |
328 | static bool takes_ownership(ItemType t) { |
329 | return IN_SET(t, | |
330 | CREATE_FILE, | |
331 | TRUNCATE_FILE, | |
332 | CREATE_DIRECTORY, | |
df8dee85 | 333 | EMPTY_DIRECTORY, |
3f93da98 ZJS |
334 | TRUNCATE_DIRECTORY, |
335 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
336 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
337 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
338 | CREATE_FIFO, |
339 | CREATE_SYMLINK, | |
340 | CREATE_CHAR_DEVICE, | |
341 | CREATE_BLOCK_DEVICE, | |
342 | COPY_FILES, | |
3f93da98 ZJS |
343 | WRITE_FILE, |
344 | IGNORE_PATH, | |
345 | IGNORE_DIRECTORY_PATH, | |
346 | REMOVE_PATH, | |
347 | RECURSIVE_REMOVE_PATH); | |
348 | } | |
349 | ||
ef43a391 | 350 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 351 | ItemArray *j; |
b8bb3e8f LP |
352 | Iterator i; |
353 | ||
ef43a391 | 354 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
355 | unsigned n; |
356 | ||
357 | for (n = 0; n < j->count; n++) { | |
358 | Item *item = j->items + n; | |
359 | ||
360 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
361 | return item; | |
362 | } | |
363 | } | |
b8bb3e8f LP |
364 | |
365 | return NULL; | |
366 | } | |
367 | ||
17b90525 | 368 | static void load_unix_sockets(void) { |
7fd1b19b | 369 | _cleanup_fclose_ FILE *f = NULL; |
f1ff734f | 370 | int r; |
17b90525 LP |
371 | |
372 | if (unix_sockets) | |
373 | return; | |
374 | ||
f1ff734f | 375 | /* We maintain a cache of the sockets we found in /proc/net/unix to speed things up a little. */ |
17b90525 | 376 | |
548f6937 LP |
377 | unix_sockets = set_new(&path_hash_ops); |
378 | if (!unix_sockets) { | |
379 | log_oom(); | |
17b90525 | 380 | return; |
548f6937 | 381 | } |
17b90525 | 382 | |
fdcad0c2 | 383 | f = fopen("/proc/net/unix", "re"); |
f1ff734f LP |
384 | if (!f) { |
385 | log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, errno, | |
386 | "Failed to open /proc/net/unix, ignoring: %m"); | |
387 | goto fail; | |
388 | } | |
17b90525 | 389 | |
fdcad0c2 | 390 | /* Skip header */ |
f1ff734f LP |
391 | r = read_line(f, LONG_LINE_MAX, NULL); |
392 | if (r < 0) { | |
393 | log_warning_errno(r, "Failed to skip /proc/net/unix header line: %m"); | |
394 | goto fail; | |
395 | } | |
396 | if (r == 0) { | |
397 | log_warning("Premature end of file reading /proc/net/unix."); | |
17b90525 | 398 | goto fail; |
f1ff734f | 399 | } |
17b90525 LP |
400 | |
401 | for (;;) { | |
f1ff734f | 402 | _cleanup_free_ char *line = NULL; |
17b90525 | 403 | char *p, *s; |
17b90525 | 404 | |
f1ff734f LP |
405 | r = read_line(f, LONG_LINE_MAX, &line); |
406 | if (r < 0) { | |
407 | log_warning_errno(r, "Failed to read /proc/net/unix line, ignoring: %m"); | |
408 | goto fail; | |
409 | } | |
410 | if (r == 0) /* EOF */ | |
17b90525 LP |
411 | break; |
412 | ||
fdcad0c2 LP |
413 | p = strchr(line, ':'); |
414 | if (!p) | |
415 | continue; | |
416 | ||
417 | if (strlen(p) < 37) | |
17b90525 LP |
418 | continue; |
419 | ||
fdcad0c2 | 420 | p += 37; |
17b90525 | 421 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 422 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
423 | p += strspn(p, WHITESPACE); |
424 | ||
425 | if (*p != '/') | |
426 | continue; | |
427 | ||
fdcad0c2 | 428 | s = strdup(p); |
f1ff734f LP |
429 | if (!s) { |
430 | log_oom(); | |
17b90525 | 431 | goto fail; |
f1ff734f | 432 | } |
17b90525 | 433 | |
858d36c1 | 434 | path_simplify(s, false); |
4ff21d85 | 435 | |
f1ff734f LP |
436 | r = set_consume(unix_sockets, s); |
437 | if (r < 0 && r != -EEXIST) { | |
438 | log_warning_errno(r, "Failed to add AF_UNIX socket to set, ignoring: %m"); | |
ef42202a | 439 | goto fail; |
f1ff734f | 440 | } |
17b90525 LP |
441 | } |
442 | ||
443 | return; | |
444 | ||
445 | fail: | |
f1ff734f | 446 | unix_sockets = set_free_free(unix_sockets); |
17b90525 LP |
447 | } |
448 | ||
449 | static bool unix_socket_alive(const char *fn) { | |
450 | assert(fn); | |
451 | ||
452 | load_unix_sockets(); | |
453 | ||
454 | if (unix_sockets) | |
455 | return !!set_get(unix_sockets, (char*) fn); | |
456 | ||
457 | /* We don't know, so assume yes */ | |
458 | return true; | |
459 | } | |
460 | ||
99d680ac | 461 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 462 | |
99d680ac KS |
463 | int mount_id_parent, mount_id; |
464 | int r_p, r; | |
465 | ||
cbfb8679 | 466 | r_p = name_to_handle_at_loop(dirfd(d), ".", NULL, &mount_id_parent, 0); |
99d680ac KS |
467 | if (r_p < 0) |
468 | r_p = -errno; | |
469 | ||
cbfb8679 | 470 | r = name_to_handle_at_loop(dirfd(d), subdir, NULL, &mount_id, 0); |
99d680ac KS |
471 | if (r < 0) |
472 | r = -errno; | |
473 | ||
474 | /* got no handle; make no assumptions, return error */ | |
475 | if (r_p < 0 && r < 0) | |
476 | return r_p; | |
477 | ||
478 | /* got both handles; if they differ, it is a mount point */ | |
479 | if (r_p >= 0 && r >= 0) | |
480 | return mount_id_parent != mount_id; | |
481 | ||
482 | /* got only one handle; assume different mount points if one | |
483 | * of both queries was not supported by the filesystem */ | |
4c701096 | 484 | if (IN_SET(r_p, -ENOSYS, -EOPNOTSUPP) || IN_SET(r, -ENOSYS, -EOPNOTSUPP)) |
99d680ac KS |
485 | return true; |
486 | ||
487 | /* return error */ | |
488 | if (r_p < 0) | |
489 | return r_p; | |
490 | return r; | |
491 | } | |
492 | ||
df99a9ef ZJS |
493 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
494 | DIR *dir; | |
495 | ||
496 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
497 | if (dir) |
498 | return dir; | |
499 | ||
500 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
501 | if (errno != EPERM) | |
502 | return NULL; | |
503 | ||
504 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
505 | if (!dir) | |
506 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
507 | |
508 | return dir; | |
509 | } | |
510 | ||
511 | static DIR* opendir_nomod(const char *path) { | |
512 | return xopendirat_nomod(AT_FDCWD, path); | |
513 | } | |
514 | ||
3b63d2d3 | 515 | static int dir_cleanup( |
78a92a5a | 516 | Item *i, |
3b63d2d3 LP |
517 | const char *p, |
518 | DIR *d, | |
519 | const struct stat *ds, | |
520 | usec_t cutoff, | |
521 | dev_t rootdev, | |
522 | bool mountpoint, | |
24f3a374 | 523 | int maxdepth, |
265ffa1e LP |
524 | bool keep_this_level) { |
525 | ||
3b63d2d3 LP |
526 | struct dirent *dent; |
527 | struct timespec times[2]; | |
528 | bool deleted = false; | |
3b63d2d3 LP |
529 | int r = 0; |
530 | ||
8fb3f009 | 531 | FOREACH_DIRENT_ALL(dent, d, break) { |
3b63d2d3 LP |
532 | struct stat s; |
533 | usec_t age; | |
7fd1b19b | 534 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 535 | |
49bfc877 | 536 | if (dot_or_dot_dot(dent->d_name)) |
3b63d2d3 | 537 | continue; |
5008d581 | 538 | |
3b63d2d3 | 539 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
540 | if (errno == ENOENT) |
541 | continue; | |
5008d581 | 542 | |
ca2f4176 | 543 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
ecc1709c LP |
544 | r = log_full_errno(errno == EACCES ? LOG_DEBUG : LOG_ERR, errno, |
545 | "stat(%s/%s) failed: %m", p, dent->d_name); | |
3b63d2d3 LP |
546 | continue; |
547 | } | |
548 | ||
549 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
550 | if (s.st_dev != rootdev) { |
551 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 552 | continue; |
582deb84 | 553 | } |
3b63d2d3 | 554 | |
99d680ac KS |
555 | /* Try to detect bind mounts of the same filesystem instance; they |
556 | * do not differ in device major/minors. This type of query is not | |
557 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
558 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
559 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
560 | p, dent->d_name); | |
99d680ac | 561 | continue; |
582deb84 | 562 | } |
99d680ac | 563 | |
605405c6 | 564 | sub_path = strjoin(p, "/", dent->d_name); |
cde684a2 | 565 | if (!sub_path) { |
0d0f0c50 | 566 | r = log_oom(); |
3b63d2d3 LP |
567 | goto finish; |
568 | } | |
569 | ||
570 | /* Is there an item configured for this path? */ | |
ef43a391 | 571 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 572 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 573 | continue; |
582deb84 | 574 | } |
3b63d2d3 | 575 | |
582deb84 ZJS |
576 | if (find_glob(globs, sub_path)) { |
577 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 578 | continue; |
582deb84 | 579 | } |
b8bb3e8f | 580 | |
3b63d2d3 LP |
581 | if (S_ISDIR(s.st_mode)) { |
582 | ||
583 | if (mountpoint && | |
584 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
585 | s.st_uid == 0) { |
586 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 587 | continue; |
582deb84 | 588 | } |
3b63d2d3 LP |
589 | |
590 | if (maxdepth <= 0) | |
582deb84 | 591 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 592 | else { |
7fd1b19b | 593 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
594 | int q; |
595 | ||
df99a9ef | 596 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 597 | if (!sub_dir) { |
582deb84 ZJS |
598 | if (errno != ENOENT) |
599 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
600 | |
601 | continue; | |
602 | } | |
603 | ||
78a92a5a | 604 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
605 | if (q < 0) |
606 | r = q; | |
607 | } | |
608 | ||
24f3a374 LP |
609 | /* Note: if you are wondering why we don't |
610 | * support the sticky bit for excluding | |
611 | * directories from cleaning like we do it for | |
612 | * other file system objects: well, the sticky | |
613 | * bit already has a meaning for directories, | |
614 | * so we don't want to overload that. */ | |
615 | ||
582deb84 ZJS |
616 | if (keep_this_level) { |
617 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 618 | continue; |
582deb84 | 619 | } |
24f3a374 | 620 | |
3b63d2d3 | 621 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
622 | age = timespec_load(&s.st_mtim); |
623 | if (age >= cutoff) { | |
624 | char a[FORMAT_TIMESTAMP_MAX]; | |
625 | /* Follows spelling in stat(1). */ | |
626 | log_debug("Directory \"%s\": modify time %s is too new.", | |
627 | sub_path, | |
628 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 629 | continue; |
582deb84 ZJS |
630 | } |
631 | ||
632 | age = timespec_load(&s.st_atim); | |
633 | if (age >= cutoff) { | |
634 | char a[FORMAT_TIMESTAMP_MAX]; | |
635 | log_debug("Directory \"%s\": access time %s is too new.", | |
636 | sub_path, | |
637 | format_timestamp_us(a, sizeof(a), age)); | |
638 | continue; | |
639 | } | |
3b63d2d3 | 640 | |
61253220 ZJS |
641 | log_debug("Removing directory \"%s\".", sub_path); |
642 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
920ce828 LP |
643 | if (!IN_SET(errno, ENOENT, ENOTEMPTY)) |
644 | r = log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
3b63d2d3 LP |
645 | |
646 | } else { | |
9c73736d LP |
647 | /* Skip files for which the sticky bit is |
648 | * set. These are semantics we define, and are | |
649 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
650 | * specification for details. */ | |
582deb84 ZJS |
651 | if (s.st_mode & S_ISVTX) { |
652 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 653 | continue; |
582deb84 | 654 | } |
9c73736d | 655 | |
582deb84 | 656 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
657 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
658 | ".journal", | |
659 | "aquota.user", | |
660 | "aquota.group")) { | |
582deb84 | 661 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 662 | continue; |
582deb84 | 663 | } |
3b63d2d3 | 664 | |
17b90525 | 665 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
666 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
667 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 668 | continue; |
582deb84 | 669 | } |
17b90525 | 670 | |
78ab08eb | 671 | /* Ignore device nodes */ |
582deb84 ZJS |
672 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
673 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 674 | continue; |
582deb84 | 675 | } |
78ab08eb | 676 | |
24f3a374 LP |
677 | /* Keep files on this level around if this is |
678 | * requested */ | |
582deb84 ZJS |
679 | if (keep_this_level) { |
680 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 681 | continue; |
582deb84 | 682 | } |
24f3a374 | 683 | |
582deb84 ZJS |
684 | age = timespec_load(&s.st_mtim); |
685 | if (age >= cutoff) { | |
686 | char a[FORMAT_TIMESTAMP_MAX]; | |
687 | /* Follows spelling in stat(1). */ | |
688 | log_debug("File \"%s\": modify time %s is too new.", | |
689 | sub_path, | |
690 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 691 | continue; |
582deb84 | 692 | } |
3b63d2d3 | 693 | |
582deb84 ZJS |
694 | age = timespec_load(&s.st_atim); |
695 | if (age >= cutoff) { | |
696 | char a[FORMAT_TIMESTAMP_MAX]; | |
697 | log_debug("File \"%s\": access time %s is too new.", | |
698 | sub_path, | |
699 | format_timestamp_us(a, sizeof(a), age)); | |
700 | continue; | |
701 | } | |
3b63d2d3 | 702 | |
582deb84 ZJS |
703 | age = timespec_load(&s.st_ctim); |
704 | if (age >= cutoff) { | |
705 | char a[FORMAT_TIMESTAMP_MAX]; | |
706 | log_debug("File \"%s\": change time %s is too new.", | |
707 | sub_path, | |
708 | format_timestamp_us(a, sizeof(a), age)); | |
709 | continue; | |
3b63d2d3 LP |
710 | } |
711 | ||
582deb84 ZJS |
712 | log_debug("unlink \"%s\"", sub_path); |
713 | ||
714 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
715 | if (errno != ENOENT) | |
716 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
717 | ||
3b63d2d3 LP |
718 | deleted = true; |
719 | } | |
720 | } | |
721 | ||
722 | finish: | |
723 | if (deleted) { | |
582deb84 ZJS |
724 | usec_t age1, age2; |
725 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
726 | ||
3b63d2d3 LP |
727 | /* Restore original directory timestamps */ |
728 | times[0] = ds->st_atim; | |
729 | times[1] = ds->st_mtim; | |
730 | ||
582deb84 ZJS |
731 | age1 = timespec_load(&ds->st_atim); |
732 | age2 = timespec_load(&ds->st_mtim); | |
733 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
734 | p, | |
735 | format_timestamp_us(a, sizeof(a), age1), | |
736 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 737 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 738 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
739 | } |
740 | ||
3b63d2d3 LP |
741 | return r; |
742 | } | |
743 | ||
5579f856 LP |
744 | static bool dangerous_hardlinks(void) { |
745 | _cleanup_free_ char *value = NULL; | |
746 | static int cached = -1; | |
747 | int r; | |
748 | ||
749 | /* Check whether the fs.protected_hardlinks sysctl is on. If we can't determine it we assume its off, as that's | |
750 | * what the upstream default is. */ | |
751 | ||
752 | if (cached >= 0) | |
753 | return cached; | |
754 | ||
755 | r = read_one_line_file("/proc/sys/fs/protected_hardlinks", &value); | |
756 | if (r < 0) { | |
757 | log_debug_errno(r, "Failed to read fs.protected_hardlinks sysctl: %m"); | |
758 | return true; | |
759 | } | |
760 | ||
761 | r = parse_boolean(value); | |
762 | if (r < 0) { | |
763 | log_debug_errno(r, "Failed to parse fs.protected_hardlinks sysctl: %m"); | |
764 | return true; | |
765 | } | |
766 | ||
767 | cached = r == 0; | |
768 | return cached; | |
769 | } | |
770 | ||
774f79b5 | 771 | static bool hardlink_vulnerable(const struct stat *st) { |
5579f856 LP |
772 | assert(st); |
773 | ||
774 | return !S_ISDIR(st->st_mode) && st->st_nlink > 1 && dangerous_hardlinks(); | |
775 | } | |
776 | ||
936f6bdb FB |
777 | static int fd_set_perms(Item *i, int fd, const struct stat *st) { |
778 | _cleanup_free_ char *path = NULL; | |
779 | int r; | |
1924a97d | 780 | |
cde684a2 | 781 | assert(i); |
936f6bdb | 782 | assert(fd); |
780e2ee1 | 783 | |
936f6bdb FB |
784 | r = fd_get_path(fd, &path); |
785 | if (r < 0) | |
780e2ee1 | 786 | return r; |
48b8aaa8 | 787 | |
936f6bdb FB |
788 | if (!i->mode_set && !i->uid_set && !i->gid_set) |
789 | goto shortcut; | |
1924a97d | 790 | |
936f6bdb | 791 | if (hardlink_vulnerable(st)) { |
5579f856 LP |
792 | log_error("Refusing to set permissions on hardlinked file %s while the fs.protected_hardlinks sysctl is turned off.", path); |
793 | return -EPERM; | |
794 | } | |
795 | ||
51207ca1 | 796 | if (i->mode_set) { |
936f6bdb | 797 | if (S_ISLNK(st->st_mode)) |
51207ca1 LP |
798 | log_debug("Skipping mode fix for symlink %s.", path); |
799 | else { | |
48b8aaa8 LP |
800 | mode_t m = i->mode; |
801 | ||
802 | if (i->mask_perms) { | |
936f6bdb | 803 | if (!(st->st_mode & 0111)) |
48b8aaa8 | 804 | m &= ~0111; |
936f6bdb | 805 | if (!(st->st_mode & 0222)) |
7d6884b6 | 806 | m &= ~0222; |
936f6bdb | 807 | if (!(st->st_mode & 0444)) |
48b8aaa8 | 808 | m &= ~0444; |
936f6bdb | 809 | if (!S_ISDIR(st->st_mode)) |
48b8aaa8 LP |
810 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ |
811 | } | |
abef3f91 | 812 | |
936f6bdb FB |
813 | if (m == (st->st_mode & 07777)) |
814 | log_debug("\"%s\" has correct mode %o already.", path, st->st_mode); | |
48b8aaa8 | 815 | else { |
51207ca1 | 816 | log_debug("Changing \"%s\" to mode %o.", path, m); |
4dfaa528 FB |
817 | if (fchmod_opath(fd, m) < 0) |
818 | return log_error_errno(errno, "fchmod() of %s failed: %m", path); | |
48b8aaa8 | 819 | } |
062e01bb | 820 | } |
51207ca1 | 821 | } |
062e01bb | 822 | |
936f6bdb FB |
823 | if ((i->uid_set && i->uid != st->st_uid) || |
824 | (i->gid_set && i->gid != st->st_gid)) { | |
51207ca1 LP |
825 | log_debug("Changing \"%s\" to owner "UID_FMT":"GID_FMT, |
826 | path, | |
827 | i->uid_set ? i->uid : UID_INVALID, | |
828 | i->gid_set ? i->gid : GID_INVALID); | |
829 | ||
936f6bdb FB |
830 | if (fchownat(fd, |
831 | "", | |
832 | i->uid_set ? i->uid : UID_INVALID, | |
833 | i->gid_set ? i->gid : GID_INVALID, | |
834 | AT_EMPTY_PATH) < 0) | |
835 | return log_error_errno(errno, "fchownat() of %s failed: %m", path); | |
582deb84 | 836 | } |
062e01bb | 837 | |
59793c8f | 838 | shortcut: |
08c84981 | 839 | return label_fix(path, 0); |
062e01bb MS |
840 | } |
841 | ||
936f6bdb FB |
842 | static int path_set_perms(Item *i, const char *path) { |
843 | _cleanup_close_ int fd = -1; | |
844 | struct stat st; | |
845 | ||
846 | assert(i); | |
847 | assert(path); | |
848 | ||
849 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
850 | if (fd < 0) { | |
851 | int level = LOG_ERR, r = -errno; | |
852 | ||
853 | /* Option "e" operates only on existing objects. Do not | |
854 | * print errors about non-existent files or directories */ | |
855 | if (i->type == EMPTY_DIRECTORY && errno == ENOENT) { | |
856 | level = LOG_DEBUG; | |
857 | r = 0; | |
858 | } | |
859 | ||
860 | log_full_errno(level, errno, "Adjusting owner and mode for %s failed: %m", path); | |
861 | return r; | |
862 | } | |
863 | ||
864 | if (fstat(fd, &st) < 0) | |
865 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
866 | ||
d460ba18 FB |
867 | if (i->type == EMPTY_DIRECTORY && !S_ISDIR(st.st_mode)) |
868 | return log_error_errno(EEXIST, "'%s' already exists and is not a directory. ", path); | |
869 | ||
936f6bdb FB |
870 | return fd_set_perms(i, fd, &st); |
871 | } | |
872 | ||
bd550f78 | 873 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
874 | const char *p; |
875 | int r; | |
876 | ||
877 | assert(i); | |
505ef0e3 | 878 | assert(i->argument); |
ebf4e801 | 879 | |
ebf4e801 MW |
880 | p = i->argument; |
881 | ||
4034a06d | 882 | for (;;) { |
4cef1923 | 883 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL; |
4034a06d | 884 | |
12ba2c44 | 885 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 886 | if (r < 0) |
bd550f78 | 887 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
888 | if (r <= 0) |
889 | break; | |
505ef0e3 | 890 | |
4cef1923 | 891 | r = split_pair(xattr, "=", &name, &value); |
ebf4e801 | 892 | if (r < 0) { |
4034a06d | 893 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
894 | continue; |
895 | } | |
505ef0e3 | 896 | |
4034a06d | 897 | if (isempty(name) || isempty(value)) { |
bd550f78 | 898 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
899 | continue; |
900 | } | |
505ef0e3 | 901 | |
4034a06d | 902 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 903 | return log_oom(); |
505ef0e3 | 904 | |
4034a06d | 905 | name = value = NULL; |
ebf4e801 MW |
906 | } |
907 | ||
4034a06d | 908 | return 0; |
ebf4e801 MW |
909 | } |
910 | ||
936f6bdb | 911 | static int fd_set_xattrs(Item *i, int fd, const struct stat *st) { |
34d26777 | 912 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
936f6bdb | 913 | _cleanup_free_ char *path = NULL; |
ebf4e801 | 914 | char **name, **value; |
936f6bdb | 915 | int r; |
ebf4e801 MW |
916 | |
917 | assert(i); | |
936f6bdb FB |
918 | assert(fd); |
919 | ||
920 | r = fd_get_path(fd, &path); | |
921 | if (r < 0) | |
922 | return r; | |
923 | ||
924 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); | |
ebf4e801 | 925 | |
ebf4e801 | 926 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
bd550f78 | 927 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
936f6bdb | 928 | if (setxattr(procfs_path, *name, *value, strlen(*value), 0) < 0) |
25f027c5 ZJS |
929 | return log_error_errno(errno, "Setting extended attribute %s=%s on %s failed: %m", |
930 | *name, *value, path); | |
ebf4e801 MW |
931 | } |
932 | return 0; | |
933 | } | |
934 | ||
936f6bdb FB |
935 | static int path_set_xattrs(Item *i, const char *path) { |
936 | _cleanup_close_ int fd = -1; | |
937 | ||
938 | assert(i); | |
939 | assert(path); | |
940 | ||
941 | fd = open(path, O_CLOEXEC|O_NOFOLLOW|O_PATH); | |
942 | if (fd < 0) | |
943 | return log_error_errno(errno, "Cannot open '%s': %m", path); | |
944 | ||
945 | return fd_set_xattrs(i, fd, NULL); | |
946 | } | |
947 | ||
bd550f78 | 948 | static int parse_acls_from_arg(Item *item) { |
349cc4a5 | 949 | #if HAVE_ACL |
f8eeeaf9 | 950 | int r; |
f8eeeaf9 ZJS |
951 | |
952 | assert(item); | |
953 | ||
50d9e46d ZJS |
954 | /* If force (= modify) is set, we will not modify the acl |
955 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 956 | |
50d9e46d | 957 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 958 | if (r < 0) |
4034a06d | 959 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
960 | #else |
961 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
962 | #endif | |
963 | ||
964 | return 0; | |
965 | } | |
966 | ||
349cc4a5 | 967 | #if HAVE_ACL |
48b8aaa8 LP |
968 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
969 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 970 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
971 | int r; |
972 | ||
d873e877 HPD |
973 | /* Returns 0 for success, positive error if already warned, |
974 | * negative error otherwise. */ | |
975 | ||
50d9e46d | 976 | if (modify) { |
dd4105b0 | 977 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
978 | if (r < 0) |
979 | return r; | |
50d9e46d | 980 | |
dd4105b0 ZJS |
981 | r = calc_acl_mask_if_needed(&dup); |
982 | if (r < 0) | |
983 | return r; | |
984 | } else { | |
985 | dup = acl_dup(acl); | |
986 | if (!dup) | |
987 | return -errno; | |
988 | ||
989 | /* the mask was already added earlier if needed */ | |
990 | } | |
991 | ||
992 | r = add_base_acls_if_needed(&dup, path); | |
993 | if (r < 0) | |
994 | return r; | |
995 | ||
582deb84 | 996 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 997 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 998 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 999 | strna(t), pretty); |
50d9e46d | 1000 | |
582deb84 ZJS |
1001 | r = acl_set_file(path, type, dup); |
1002 | if (r < 0) | |
3ea40b78 LP |
1003 | /* Return positive to indicate we already warned */ |
1004 | return -log_error_errno(errno, | |
1005 | "Setting %s ACL \"%s\" on %s failed: %m", | |
1006 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 1007 | strna(t), pretty); |
d873e877 | 1008 | |
582deb84 | 1009 | return 0; |
50d9e46d | 1010 | } |
35888b67 | 1011 | #endif |
50d9e46d | 1012 | |
936f6bdb | 1013 | static int fd_set_acls(Item *item, int fd, const struct stat *st) { |
d873e877 | 1014 | int r = 0; |
349cc4a5 | 1015 | #if HAVE_ACL |
34d26777 | 1016 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
936f6bdb | 1017 | _cleanup_free_ char *path = NULL; |
48b8aaa8 | 1018 | |
f8eeeaf9 | 1019 | assert(item); |
936f6bdb FB |
1020 | assert(fd); |
1021 | assert(st); | |
48b8aaa8 | 1022 | |
936f6bdb FB |
1023 | r = fd_get_path(fd, &path); |
1024 | if (r < 0) | |
1025 | return r; | |
48b8aaa8 | 1026 | |
936f6bdb | 1027 | if (hardlink_vulnerable(st)) { |
5579f856 LP |
1028 | log_error("Refusing to set ACLs on hardlinked file %s while the fs.protected_hardlinks sysctl is turned off.", path); |
1029 | return -EPERM; | |
1030 | } | |
1031 | ||
936f6bdb | 1032 | if (S_ISLNK(st->st_mode)) { |
48b8aaa8 LP |
1033 | log_debug("Skipping ACL fix for symlink %s.", path); |
1034 | return 0; | |
1035 | } | |
1036 | ||
936f6bdb | 1037 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); |
48b8aaa8 | 1038 | |
d873e877 | 1039 | if (item->acl_access) |
936f6bdb | 1040 | r = path_set_acl(procfs_path, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 1041 | |
d873e877 | 1042 | if (r == 0 && item->acl_default) |
936f6bdb | 1043 | r = path_set_acl(procfs_path, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 1044 | |
d873e877 HPD |
1045 | if (r > 0) |
1046 | return -r; /* already warned */ | |
936f6bdb | 1047 | if (r == -EOPNOTSUPP) { |
d873e877 HPD |
1048 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
1049 | return 0; | |
936f6bdb FB |
1050 | } |
1051 | if (r < 0) | |
1052 | return log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
d873e877 HPD |
1053 | #endif |
1054 | return r; | |
f8eeeaf9 ZJS |
1055 | } |
1056 | ||
936f6bdb FB |
1057 | static int path_set_acls(Item *item, const char *path) { |
1058 | int r = 0; | |
1059 | #ifdef HAVE_ACL | |
1060 | _cleanup_close_ int fd = -1; | |
1061 | struct stat st; | |
1062 | ||
1063 | assert(item); | |
1064 | assert(path); | |
1065 | ||
1066 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
1067 | if (fd < 0) | |
1068 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
1069 | ||
1070 | if (fstat(fd, &st) < 0) | |
1071 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1072 | ||
1073 | r = fd_set_acls(item, fd, &st); | |
1074 | #endif | |
1075 | return r; | |
1076 | } | |
1077 | ||
88ec4dfa LP |
1078 | #define ATTRIBUTES_ALL \ |
1079 | (FS_NOATIME_FL | \ | |
1080 | FS_SYNC_FL | \ | |
1081 | FS_DIRSYNC_FL | \ | |
1082 | FS_APPEND_FL | \ | |
1083 | FS_COMPR_FL | \ | |
1084 | FS_NODUMP_FL | \ | |
1085 | FS_EXTENT_FL | \ | |
1086 | FS_IMMUTABLE_FL | \ | |
1087 | FS_JOURNAL_DATA_FL | \ | |
1088 | FS_SECRM_FL | \ | |
1089 | FS_UNRM_FL | \ | |
1090 | FS_NOTAIL_FL | \ | |
1091 | FS_TOPDIR_FL | \ | |
1092 | FS_NOCOW_FL) | |
1093 | ||
bd550f78 | 1094 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
1095 | |
1096 | static const struct { | |
1097 | char character; | |
1098 | unsigned value; | |
1099 | } attributes[] = { | |
1100 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
1101 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
1102 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
1103 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
1104 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
1105 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
8c35b2ca | 1106 | { 'e', FS_EXTENT_FL }, /* Extents */ |
88ec4dfa LP |
1107 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ |
1108 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
1109 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
1110 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
1111 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
13e785f7 | 1112 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies */ |
88ec4dfa | 1113 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ |
22c3a6ca | 1114 | }; |
88ec4dfa | 1115 | |
22c3a6ca GB |
1116 | enum { |
1117 | MODE_ADD, | |
1118 | MODE_DEL, | |
1119 | MODE_SET | |
1120 | } mode = MODE_ADD; | |
22c3a6ca | 1121 | |
88ec4dfa LP |
1122 | unsigned value = 0, mask = 0; |
1123 | const char *p; | |
22c3a6ca | 1124 | |
88ec4dfa LP |
1125 | assert(item); |
1126 | ||
1127 | p = item->argument; | |
1128 | if (p) { | |
1129 | if (*p == '+') { | |
1130 | mode = MODE_ADD; | |
1131 | p++; | |
1132 | } else if (*p == '-') { | |
1133 | mode = MODE_DEL; | |
1134 | p++; | |
1135 | } else if (*p == '=') { | |
1136 | mode = MODE_SET; | |
1137 | p++; | |
1138 | } | |
22c3a6ca GB |
1139 | } |
1140 | ||
88ec4dfa LP |
1141 | if (isempty(p) && mode != MODE_SET) { |
1142 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
1143 | return -EINVAL; |
1144 | } | |
88ec4dfa LP |
1145 | |
1146 | for (; p && *p ; p++) { | |
1147 | unsigned i, v; | |
1148 | ||
1149 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
1150 | if (*p == attributes[i].character) | |
1151 | break; | |
1152 | ||
1153 | if (i >= ELEMENTSOF(attributes)) { | |
1154 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
1155 | return -EINVAL; |
1156 | } | |
88ec4dfa LP |
1157 | |
1158 | v = attributes[i].value; | |
1159 | ||
3742095b | 1160 | SET_FLAG(value, v, IN_SET(mode, MODE_ADD, MODE_SET)); |
88ec4dfa LP |
1161 | |
1162 | mask |= v; | |
22c3a6ca GB |
1163 | } |
1164 | ||
1165 | if (mode == MODE_SET) | |
88ec4dfa | 1166 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 1167 | |
88ec4dfa | 1168 | assert(mask != 0); |
22c3a6ca | 1169 | |
88ec4dfa LP |
1170 | item->attribute_mask = mask; |
1171 | item->attribute_value = value; | |
1172 | item->attribute_set = true; | |
22c3a6ca GB |
1173 | |
1174 | return 0; | |
22c3a6ca GB |
1175 | } |
1176 | ||
936f6bdb | 1177 | static int fd_set_attribute(Item *item, int fd, const struct stat *st) { |
936f6bdb FB |
1178 | _cleanup_close_ int procfs_fd = -1; |
1179 | _cleanup_free_ char *path = NULL; | |
88ec4dfa LP |
1180 | unsigned f; |
1181 | int r; | |
22c3a6ca | 1182 | |
88ec4dfa | 1183 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 1184 | return 0; |
22c3a6ca | 1185 | |
936f6bdb FB |
1186 | r = fd_get_path(fd, &path); |
1187 | if (r < 0) | |
1188 | return r; | |
88ec4dfa LP |
1189 | |
1190 | /* Issuing the file attribute ioctls on device nodes is not | |
1191 | * safe, as that will be delivered to the drivers, not the | |
1192 | * file system containing the device node. */ | |
936f6bdb | 1193 | if (!S_ISREG(st->st_mode) && !S_ISDIR(st->st_mode)) { |
88ec4dfa LP |
1194 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); |
1195 | return -EINVAL; | |
1196 | } | |
1197 | ||
1198 | f = item->attribute_value & item->attribute_mask; | |
1199 | ||
1200 | /* Mask away directory-specific flags */ | |
936f6bdb | 1201 | if (!S_ISDIR(st->st_mode)) |
22c3a6ca | 1202 | f &= ~FS_DIRSYNC_FL; |
88ec4dfa | 1203 | |
f2324783 | 1204 | procfs_fd = fd_reopen(fd, O_RDONLY|O_CLOEXEC|O_NOATIME); |
936f6bdb FB |
1205 | if (procfs_fd < 0) |
1206 | return -errno; | |
1207 | ||
1208 | r = chattr_fd(procfs_fd, f, item->attribute_mask); | |
22c3a6ca | 1209 | if (r < 0) |
4c701096 | 1210 | log_full_errno(IN_SET(r, -ENOTTY, -EOPNOTSUPP) ? LOG_DEBUG : LOG_WARNING, |
ad75a97f LP |
1211 | r, |
1212 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
1213 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
1214 | |
1215 | return 0; | |
1216 | } | |
1217 | ||
936f6bdb FB |
1218 | static int path_set_attribute(Item *item, const char *path) { |
1219 | _cleanup_close_ int fd = -1; | |
1220 | struct stat st; | |
1221 | ||
1222 | if (!item->attribute_set || item->attribute_mask == 0) | |
1223 | return 0; | |
1224 | ||
1225 | fd = open(path, O_CLOEXEC|O_NOFOLLOW|O_PATH); | |
1226 | if (fd < 0) | |
1227 | return log_error_errno(errno, "Cannot open '%s': %m", path); | |
1228 | ||
1229 | if (fstat(fd, &st) < 0) | |
1230 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
1231 | ||
1232 | return fd_set_attribute(item, fd, &st); | |
1233 | } | |
1234 | ||
d4e9eb91 | 1235 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
1236 | _cleanup_close_ int fd = -1; |
1237 | int flags, r = 0; | |
d4e9eb91 | 1238 | struct stat st; |
d4e9eb91 | 1239 | |
874f1947 LP |
1240 | assert(i); |
1241 | assert(path); | |
1242 | ||
49e87292 | 1243 | flags = i->type == CREATE_FILE ? O_CREAT|O_EXCL|O_NOFOLLOW : |
43ad6e31 | 1244 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; |
d4e9eb91 | 1245 | |
43ad6e31 | 1246 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1247 | mac_selinux_create_file_prepare(path, S_IFREG); |
669fc4e5 | 1248 | fd = open(path, flags|O_NONBLOCK|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 1249 | mac_selinux_create_file_clear(); |
5c0d398d | 1250 | } |
d4e9eb91 DR |
1251 | |
1252 | if (fd < 0) { | |
582deb84 | 1253 | if (i->type == WRITE_FILE && errno == ENOENT) { |
49e87292 | 1254 | log_debug_errno(errno, "Not writing missing file \"%s\": %m", path); |
d4e9eb91 | 1255 | return 0; |
582deb84 | 1256 | } |
49e87292 LP |
1257 | if (i->type == CREATE_FILE && errno == EEXIST) { |
1258 | log_debug_errno(errno, "Not writing to pre-existing file \"%s\": %m", path); | |
1259 | goto done; | |
1260 | } | |
d4e9eb91 | 1261 | |
f44b28fd MO |
1262 | r = -errno; |
1263 | if (!i->argument && errno == EROFS && stat(path, &st) == 0 && | |
1264 | (i->type == CREATE_FILE || st.st_size == 0)) | |
1265 | goto check_mode; | |
1266 | ||
1267 | return log_error_errno(r, "Failed to create file %s: %m", path); | |
d4e9eb91 DR |
1268 | } |
1269 | ||
1270 | if (i->argument) { | |
4034a06d | 1271 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 1272 | |
4cef1923 | 1273 | r = loop_write(fd, i->argument, strlen(i->argument), false); |
582deb84 ZJS |
1274 | if (r < 0) |
1275 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1276 | } else | |
1277 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1278 | |
43ad6e31 | 1279 | fd = safe_close(fd); |
3612fbc1 | 1280 | |
bb9947be | 1281 | done: |
4a62c710 MS |
1282 | if (stat(path, &st) < 0) |
1283 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 | 1284 | |
f44b28fd | 1285 | check_mode: |
d4e9eb91 DR |
1286 | if (!S_ISREG(st.st_mode)) { |
1287 | log_error("%s is not a file.", path); | |
1288 | return -EEXIST; | |
1289 | } | |
1290 | ||
b705ab6a | 1291 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1292 | if (r < 0) |
1293 | return r; | |
1294 | ||
1295 | return 0; | |
1296 | } | |
1297 | ||
081043cf | 1298 | typedef int (*action_t)(Item *, const char *); |
936f6bdb | 1299 | typedef int (*fdaction_t)(Item *, int fd, const struct stat *st); |
081043cf | 1300 | |
936f6bdb FB |
1301 | static int item_do(Item *i, int fd, const struct stat *st, fdaction_t action) { |
1302 | int r = 0, q; | |
e73a03e0 LP |
1303 | |
1304 | assert(i); | |
936f6bdb FB |
1305 | assert(fd >= 0); |
1306 | assert(st); | |
a8d88783 MS |
1307 | |
1308 | /* This returns the first error we run into, but nevertheless | |
1309 | * tries to go on */ | |
936f6bdb | 1310 | r = action(i, fd, st); |
a8d88783 | 1311 | |
936f6bdb | 1312 | if (S_ISDIR(st->st_mode)) { |
22dd8d35 | 1313 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
936f6bdb FB |
1314 | _cleanup_closedir_ DIR *d = NULL; |
1315 | struct dirent *de; | |
a8d88783 | 1316 | |
936f6bdb FB |
1317 | /* The passed 'fd' was opened with O_PATH. We need to convert |
1318 | * it into a 'regular' fd before reading the directory content. */ | |
1319 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); | |
a8d88783 | 1320 | |
936f6bdb FB |
1321 | d = opendir(procfs_path); |
1322 | if (!d) { | |
1323 | r = r ?: -errno; | |
1324 | goto finish; | |
1325 | } | |
a8d88783 | 1326 | |
936f6bdb FB |
1327 | FOREACH_DIRENT_ALL(de, d, q = -errno; goto finish) { |
1328 | struct stat de_st; | |
1329 | int de_fd; | |
a8d88783 | 1330 | |
936f6bdb FB |
1331 | if (dot_or_dot_dot(de->d_name)) |
1332 | continue; | |
1333 | ||
1334 | de_fd = openat(fd, de->d_name, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
1335 | if (de_fd >= 0 && fstat(de_fd, &de_st) >= 0) | |
1336 | /* pass ownership of dirent fd over */ | |
1337 | q = item_do(i, de_fd, &de_st, action); | |
1338 | else | |
1339 | q = -errno; | |
a8d88783 | 1340 | |
e73a03e0 LP |
1341 | if (q < 0 && r == 0) |
1342 | r = q; | |
a8d88783 | 1343 | } |
a8d88783 | 1344 | } |
936f6bdb FB |
1345 | finish: |
1346 | safe_close(fd); | |
e73a03e0 | 1347 | return r; |
a8d88783 MS |
1348 | } |
1349 | ||
936f6bdb | 1350 | static int glob_item(Item *i, action_t action) { |
df99a9ef | 1351 | _cleanup_globfree_ glob_t g = { |
ebf31a1f | 1352 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, |
df99a9ef | 1353 | }; |
e73a03e0 | 1354 | int r = 0, k; |
99e68c0b MS |
1355 | char **fn; |
1356 | ||
84e72b5e ZJS |
1357 | k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g); |
1358 | if (k < 0 && k != -ENOENT) | |
1359 | return log_error_errno(k, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1360 | |
c84a9488 ZJS |
1361 | STRV_FOREACH(fn, g.gl_pathv) { |
1362 | k = action(i, *fn); | |
e73a03e0 | 1363 | if (k < 0 && r == 0) |
99e68c0b | 1364 | r = k; |
936f6bdb FB |
1365 | } |
1366 | ||
1367 | return r; | |
1368 | } | |
081043cf | 1369 | |
936f6bdb FB |
1370 | static int glob_item_recursively(Item *i, fdaction_t action) { |
1371 | _cleanup_globfree_ glob_t g = { | |
1372 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
1373 | }; | |
1374 | int r = 0, k; | |
1375 | char **fn; | |
1376 | ||
1377 | k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g); | |
1378 | if (k < 0 && k != -ENOENT) | |
1379 | return log_error_errno(k, "glob(%s) failed: %m", i->path); | |
1380 | ||
1381 | STRV_FOREACH(fn, g.gl_pathv) { | |
1382 | _cleanup_close_ int fd = -1; | |
1383 | struct stat st; | |
1384 | ||
1385 | /* Make sure we won't trigger/follow file object (such as | |
1386 | * device nodes, automounts, ...) pointed out by 'fn' with | |
1387 | * O_PATH. Note, when O_PATH is used, flags other than | |
1388 | * O_CLOEXEC, O_DIRECTORY, and O_NOFOLLOW are ignored. */ | |
1389 | ||
1390 | fd = open(*fn, O_CLOEXEC|O_NOFOLLOW|O_PATH); | |
1391 | if (fd < 0) { | |
1392 | r = r ?: -errno; | |
1393 | continue; | |
1394 | } | |
1395 | ||
1396 | if (fstat(fd, &st) < 0) { | |
1397 | r = r ?: -errno; | |
1398 | continue; | |
081043cf | 1399 | } |
936f6bdb FB |
1400 | |
1401 | k = item_do(i, fd, &st, action); | |
1402 | if (k < 0 && r == 0) | |
1403 | r = k; | |
1404 | ||
1405 | /* we passed fd ownership to the previous call */ | |
1406 | fd = -1; | |
c84a9488 | 1407 | } |
99e68c0b | 1408 | |
99e68c0b MS |
1409 | return r; |
1410 | } | |
1411 | ||
294929f8 ZJS |
1412 | typedef enum { |
1413 | CREATION_NORMAL, | |
1414 | CREATION_EXISTING, | |
1415 | CREATION_FORCE, | |
7a7d5db7 LP |
1416 | _CREATION_MODE_MAX, |
1417 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1418 | } CreationMode; |
1419 | ||
7a7d5db7 LP |
1420 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1421 | [CREATION_NORMAL] = "Created", | |
1422 | [CREATION_EXISTING] = "Found existing", | |
1423 | [CREATION_FORCE] = "Created replacement", | |
1424 | }; | |
1425 | ||
1426 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1427 | |
3b63d2d3 | 1428 | static int create_item(Item *i) { |
3b63d2d3 | 1429 | struct stat st; |
df28bc08 | 1430 | int r = 0; |
114a17d2 | 1431 | int q = 0; |
294929f8 | 1432 | CreationMode creation; |
5008d581 | 1433 | |
3b63d2d3 | 1434 | assert(i); |
5008d581 | 1435 | |
582deb84 ZJS |
1436 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1437 | ||
3b63d2d3 LP |
1438 | switch (i->type) { |
1439 | ||
1440 | case IGNORE_PATH: | |
78a92a5a | 1441 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1442 | case REMOVE_PATH: |
1443 | case RECURSIVE_REMOVE_PATH: | |
1444 | return 0; | |
5008d581 | 1445 | |
3b63d2d3 | 1446 | case CREATE_FILE: |
31ed59c5 | 1447 | case TRUNCATE_FILE: |
7fa10748 LP |
1448 | RUN_WITH_UMASK(0000) |
1449 | (void) mkdir_parents_label(i->path, 0755); | |
1450 | ||
1845fdd9 DR |
1451 | r = write_one_file(i, i->path); |
1452 | if (r < 0) | |
1453 | return r; | |
1454 | break; | |
265ffa1e | 1455 | |
7b887f22 | 1456 | case COPY_FILES: |
7fa10748 LP |
1457 | RUN_WITH_UMASK(0000) |
1458 | (void) mkdir_parents_label(i->path, 0755); | |
1459 | ||
4cef1923 | 1460 | log_debug("Copying tree \"%s\" to \"%s\".", i->argument, i->path); |
7fa10748 LP |
1461 | r = copy_tree(i->argument, i->path, |
1462 | i->uid_set ? i->uid : UID_INVALID, | |
1463 | i->gid_set ? i->gid : GID_INVALID, | |
1464 | COPY_REFLINK); | |
f44b28fd MO |
1465 | |
1466 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1467 | r = -EEXIST; | |
1468 | ||
849958d1 | 1469 | if (r < 0) { |
e156347e LP |
1470 | struct stat a, b; |
1471 | ||
8d3d7072 MS |
1472 | if (r != -EEXIST) |
1473 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1474 | |
4cef1923 FB |
1475 | if (stat(i->argument, &a) < 0) |
1476 | return log_error_errno(errno, "stat(%s) failed: %m", i->argument); | |
e156347e | 1477 | |
4a62c710 MS |
1478 | if (stat(i->path, &b) < 0) |
1479 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1480 | |
1481 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1482 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1483 | return 0; | |
1484 | } | |
849958d1 LP |
1485 | } |
1486 | ||
b705ab6a | 1487 | r = path_set_perms(i, i->path); |
849958d1 LP |
1488 | if (r < 0) |
1489 | return r; | |
1490 | ||
1491 | break; | |
1492 | ||
d4e9eb91 | 1493 | case WRITE_FILE: |
936f6bdb | 1494 | r = glob_item(i, write_one_file); |
f05bc3f7 MS |
1495 | if (r < 0) |
1496 | return r; | |
5008d581 | 1497 | |
3b63d2d3 LP |
1498 | break; |
1499 | ||
3b63d2d3 | 1500 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1501 | case TRUNCATE_DIRECTORY: |
1502 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1503 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1504 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
d7b8eec7 | 1505 | RUN_WITH_UMASK(0000) |
7fa10748 | 1506 | (void) mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1507 | |
5fb13eb5 | 1508 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
2904e949 | 1509 | |
945403e6 | 1510 | if (btrfs_is_subvol(empty_to_root(arg_root)) <= 0) |
2904e949 LP |
1511 | |
1512 | /* Don't create a subvolume unless the | |
1513 | * root directory is one, too. We do | |
1514 | * this under the assumption that if | |
1515 | * the root directory is just a plain | |
1516 | * directory (i.e. very light-weight), | |
1517 | * we shouldn't try to split it up | |
1518 | * into subvolumes (i.e. more | |
1519 | * heavy-weight). Thus, chroot() | |
1520 | * environments and suchlike will get | |
1521 | * a full brtfs subvolume set up below | |
1522 | * their tree only if they | |
1523 | * specifically set up a btrfs | |
1524 | * subvolume for the root dir too. */ | |
1525 | ||
1526 | r = -ENOTTY; | |
1527 | else { | |
1528 | RUN_WITH_UMASK((~i->mode) & 0777) | |
1529 | r = btrfs_subvol_make(i->path); | |
1530 | } | |
5fb13eb5 | 1531 | } else |
d7b8eec7 LP |
1532 | r = 0; |
1533 | ||
582deb84 | 1534 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1535 | RUN_WITH_UMASK(0000) |
1536 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1537 | |
e156347e | 1538 | if (r < 0) { |
7b135a73 | 1539 | int k; |
5008d581 | 1540 | |
4c701096 | 1541 | if (!IN_SET(r, -EEXIST, -EROFS)) |
7b135a73 | 1542 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); |
5008d581 | 1543 | |
7b135a73 LP |
1544 | k = is_dir(i->path, false); |
1545 | if (k == -ENOENT && r == -EROFS) | |
1546 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1547 | if (k < 0) | |
1548 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1549 | if (!k) { | |
1550 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1551 | return 0; |
1552 | } | |
294929f8 ZJS |
1553 | |
1554 | creation = CREATION_EXISTING; | |
1555 | } else | |
1556 | creation = CREATION_NORMAL; | |
7b135a73 | 1557 | |
7a7d5db7 | 1558 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1559 | |
5fb13eb5 LP |
1560 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1561 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
114a17d2 | 1562 | if (r == -ENOTTY) |
022ffe4c | 1563 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (unsupported fs or dir not a subvolume): %m", i->path); |
114a17d2 | 1564 | else if (r == -EROFS) |
022ffe4c | 1565 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (fs is read-only).", i->path); |
114a17d2 | 1566 | else if (r == -ENOPROTOOPT) |
022ffe4c | 1567 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (quota support is disabled).", i->path); |
114a17d2 EV |
1568 | else if (r < 0) |
1569 | q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1570 | else if (r > 0) | |
5fb13eb5 | 1571 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); |
114a17d2 | 1572 | else if (r == 0) |
5fb13eb5 LP |
1573 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); |
1574 | } | |
1575 | ||
4831981d | 1576 | _fallthrough_; |
df8dee85 | 1577 | case EMPTY_DIRECTORY: |
939ca213 | 1578 | r = glob_item(i, path_set_perms); |
114a17d2 EV |
1579 | if (q < 0) |
1580 | return q; | |
f05bc3f7 MS |
1581 | if (r < 0) |
1582 | return r; | |
3b63d2d3 LP |
1583 | |
1584 | break; | |
ee17ee7c LP |
1585 | |
1586 | case CREATE_FIFO: | |
5c0d398d | 1587 | RUN_WITH_UMASK(0000) { |
7fa10748 LP |
1588 | (void) mkdir_parents_label(i->path, 0755); |
1589 | ||
ecabcf8b | 1590 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1591 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1592 | mac_selinux_create_file_clear(); |
5c0d398d | 1593 | } |
ee17ee7c | 1594 | |
1554afae | 1595 | if (r < 0) { |
4a62c710 MS |
1596 | if (errno != EEXIST) |
1597 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1598 | |
a542c4dc | 1599 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1600 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1601 | |
1554afae LP |
1602 | if (!S_ISFIFO(st.st_mode)) { |
1603 | ||
1604 | if (i->force) { | |
1554afae | 1605 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1606 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1607 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1608 | mac_selinux_create_file_clear(); |
1554afae LP |
1609 | } |
1610 | ||
f647962d MS |
1611 | if (r < 0) |
1612 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1613 | creation = CREATION_FORCE; |
1554afae | 1614 | } else { |
a542c4dc | 1615 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1616 | return 0; |
1617 | } | |
294929f8 ZJS |
1618 | } else |
1619 | creation = CREATION_EXISTING; | |
1620 | } else | |
1621 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1622 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1623 | |
b705ab6a | 1624 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1625 | if (r < 0) |
1626 | return r; | |
ee17ee7c LP |
1627 | |
1628 | break; | |
a8d88783 | 1629 | |
5c5ccf12 | 1630 | case CREATE_SYMLINK: { |
7fa10748 LP |
1631 | RUN_WITH_UMASK(0000) |
1632 | (void) mkdir_parents_label(i->path, 0755); | |
1633 | ||
ecabcf8b | 1634 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
4cef1923 | 1635 | r = symlink(i->argument, i->path); |
ecabcf8b | 1636 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1637 | |
468d726b | 1638 | if (r < 0) { |
2e78fa79 | 1639 | _cleanup_free_ char *x = NULL; |
468d726b | 1640 | |
4a62c710 | 1641 | if (errno != EEXIST) |
4cef1923 | 1642 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", i->argument, i->path); |
2e78fa79 LP |
1643 | |
1644 | r = readlink_malloc(i->path, &x); | |
4cef1923 | 1645 | if (r < 0 || !streq(i->argument, x)) { |
2e78fa79 LP |
1646 | |
1647 | if (i->force) { | |
ecabcf8b | 1648 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
4cef1923 | 1649 | r = symlink_atomic(i->argument, i->path); |
ecabcf8b | 1650 | mac_selinux_create_file_clear(); |
2e78fa79 | 1651 | |
2ef5de1b | 1652 | if (IN_SET(r, -EISDIR, -EEXIST, -ENOTEMPTY)) { |
b3f5897f WD |
1653 | r = rm_rf(i->path, REMOVE_ROOT|REMOVE_PHYSICAL); |
1654 | if (r < 0) | |
1655 | return log_error_errno(r, "rm -fr %s failed: %m", i->path); | |
1656 | ||
1657 | mac_selinux_create_file_prepare(i->path, S_IFLNK); | |
4cef1923 | 1658 | r = symlink(i->argument, i->path) < 0 ? -errno : 0; |
b3f5897f WD |
1659 | mac_selinux_create_file_clear(); |
1660 | } | |
f647962d | 1661 | if (r < 0) |
4cef1923 | 1662 | return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path); |
a542c4dc | 1663 | |
294929f8 | 1664 | creation = CREATION_FORCE; |
1554afae | 1665 | } else { |
582deb84 | 1666 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1667 | return 0; |
1668 | } | |
294929f8 ZJS |
1669 | } else |
1670 | creation = CREATION_EXISTING; | |
1671 | } else | |
a542c4dc | 1672 | |
294929f8 | 1673 | creation = CREATION_NORMAL; |
7a7d5db7 | 1674 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1675 | break; |
5c5ccf12 | 1676 | } |
468d726b LP |
1677 | |
1678 | case CREATE_BLOCK_DEVICE: | |
1679 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1680 | mode_t file_type; |
1681 | ||
1682 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1683 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1684 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1685 | that case to avoid noise, and we don't support |
1686 | virtualized devices in containers anyway. */ | |
1687 | ||
1688 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1689 | return 0; | |
1690 | } | |
1691 | ||
7fa10748 LP |
1692 | RUN_WITH_UMASK(0000) |
1693 | (void) mkdir_parents_label(i->path, 0755); | |
1694 | ||
1554afae | 1695 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1696 | |
5c0d398d | 1697 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1698 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1699 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1700 | mac_selinux_create_file_clear(); |
5c0d398d | 1701 | } |
468d726b | 1702 | |
6555ad8e KS |
1703 | if (r < 0) { |
1704 | if (errno == EPERM) { | |
1705 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1706 | "skipping creation of device node %s.", i->path); | |
1707 | return 0; | |
1708 | } | |
1709 | ||
4a62c710 MS |
1710 | if (errno != EEXIST) |
1711 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1712 | |
a542c4dc | 1713 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1714 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1715 | |
1554afae LP |
1716 | if ((st.st_mode & S_IFMT) != file_type) { |
1717 | ||
1718 | if (i->force) { | |
1719 | ||
1720 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1721 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1722 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1723 | mac_selinux_create_file_clear(); |
1554afae LP |
1724 | } |
1725 | ||
f647962d | 1726 | if (r < 0) |
294929f8 ZJS |
1727 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1728 | creation = CREATION_FORCE; | |
1554afae LP |
1729 | } else { |
1730 | log_debug("%s is not a device node.", i->path); | |
1731 | return 0; | |
1732 | } | |
294929f8 ZJS |
1733 | } else |
1734 | creation = CREATION_EXISTING; | |
1735 | } else | |
1736 | creation = CREATION_NORMAL; | |
a542c4dc | 1737 | |
294929f8 | 1738 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1739 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1740 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1741 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1742 | |
b705ab6a | 1743 | r = path_set_perms(i, i->path); |
468d726b LP |
1744 | if (r < 0) |
1745 | return r; | |
1746 | ||
1747 | break; | |
1748 | } | |
1749 | ||
e73a03e0 | 1750 | case ADJUST_MODE: |
777b87e7 | 1751 | case RELABEL_PATH: |
936f6bdb | 1752 | r = glob_item(i, path_set_perms); |
777b87e7 | 1753 | if (r < 0) |
96ca8194 | 1754 | return r; |
777b87e7 MS |
1755 | break; |
1756 | ||
a8d88783 | 1757 | case RECURSIVE_RELABEL_PATH: |
936f6bdb | 1758 | r = glob_item_recursively(i, fd_set_perms); |
a8d88783 MS |
1759 | if (r < 0) |
1760 | return r; | |
ebf4e801 | 1761 | break; |
e73a03e0 | 1762 | |
ebf4e801 | 1763 | case SET_XATTR: |
936f6bdb | 1764 | r = glob_item(i, path_set_xattrs); |
b705ab6a ZJS |
1765 | if (r < 0) |
1766 | return r; | |
1767 | break; | |
1768 | ||
1769 | case RECURSIVE_SET_XATTR: | |
936f6bdb | 1770 | r = glob_item_recursively(i, fd_set_xattrs); |
ebf4e801 MW |
1771 | if (r < 0) |
1772 | return r; | |
e73a03e0 | 1773 | break; |
f8eeeaf9 ZJS |
1774 | |
1775 | case SET_ACL: | |
936f6bdb | 1776 | r = glob_item(i, path_set_acls); |
f8eeeaf9 ZJS |
1777 | if (r < 0) |
1778 | return r; | |
b705ab6a ZJS |
1779 | break; |
1780 | ||
1781 | case RECURSIVE_SET_ACL: | |
936f6bdb | 1782 | r = glob_item_recursively(i, fd_set_acls); |
b705ab6a ZJS |
1783 | if (r < 0) |
1784 | return r; | |
1785 | break; | |
22c3a6ca | 1786 | |
88ec4dfa | 1787 | case SET_ATTRIBUTE: |
936f6bdb | 1788 | r = glob_item(i, path_set_attribute); |
22c3a6ca GB |
1789 | if (r < 0) |
1790 | return r; | |
1791 | break; | |
1792 | ||
88ec4dfa | 1793 | case RECURSIVE_SET_ATTRIBUTE: |
936f6bdb | 1794 | r = glob_item_recursively(i, fd_set_attribute); |
22c3a6ca GB |
1795 | if (r < 0) |
1796 | return r; | |
1797 | break; | |
3b63d2d3 LP |
1798 | } |
1799 | ||
f05bc3f7 | 1800 | return 0; |
3b63d2d3 LP |
1801 | } |
1802 | ||
a0896123 | 1803 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1804 | int r; |
1805 | ||
1806 | assert(i); | |
1807 | ||
1808 | switch (i->type) { | |
1809 | ||
3b63d2d3 | 1810 | case REMOVE_PATH: |
4a62c710 | 1811 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1812 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1813 | |
1814 | break; | |
1815 | ||
1816 | case TRUNCATE_DIRECTORY: | |
1817 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1818 | /* FIXME: we probably should use dir_cleanup() here |
1819 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1820 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1821 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1822 | if (r < 0 && r != -ENOENT) |
1823 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1824 | |
1825 | break; | |
7fcb4b9b ZJS |
1826 | |
1827 | default: | |
1828 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1829 | } |
1830 | ||
1831 | return 0; | |
1832 | } | |
1833 | ||
a0896123 | 1834 | static int remove_item(Item *i) { |
b8bb3e8f LP |
1835 | assert(i); |
1836 | ||
582deb84 ZJS |
1837 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1838 | ||
b8bb3e8f LP |
1839 | switch (i->type) { |
1840 | ||
b8bb3e8f LP |
1841 | case REMOVE_PATH: |
1842 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1843 | case RECURSIVE_REMOVE_PATH: |
936f6bdb | 1844 | return glob_item(i, remove_item_instance); |
b8bb3e8f | 1845 | |
df8dee85 ZJS |
1846 | default: |
1847 | return 0; | |
1848 | } | |
b8bb3e8f LP |
1849 | } |
1850 | ||
78a92a5a | 1851 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1852 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1853 | struct stat s, ps; |
1854 | bool mountpoint; | |
78a92a5a | 1855 | usec_t cutoff, n; |
582deb84 | 1856 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1857 | |
1858 | assert(i); | |
1859 | ||
1860 | if (!i->age_set) | |
1861 | return 0; | |
1862 | ||
1863 | n = now(CLOCK_REALTIME); | |
1864 | if (n < i->age) | |
1865 | return 0; | |
1866 | ||
1867 | cutoff = n - i->age; | |
1868 | ||
df99a9ef | 1869 | d = opendir_nomod(instance); |
78a92a5a | 1870 | if (!d) { |
d710aaf7 | 1871 | if (IN_SET(errno, ENOENT, ENOTDIR)) { |
582deb84 | 1872 | log_debug_errno(errno, "Directory \"%s\": %m", instance); |
78a92a5a | 1873 | return 0; |
582deb84 | 1874 | } |
78a92a5a | 1875 | |
d710aaf7 | 1876 | return log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1877 | } |
1878 | ||
4a62c710 MS |
1879 | if (fstat(dirfd(d), &s) < 0) |
1880 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1881 | |
1882 | if (!S_ISDIR(s.st_mode)) { | |
1883 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1884 | return -ENOTDIR; |
78a92a5a MS |
1885 | } |
1886 | ||
4a62c710 MS |
1887 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1888 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a | 1889 | |
2bb158c1 | 1890 | mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
78a92a5a | 1891 | |
582deb84 ZJS |
1892 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1893 | mountpoint ? "mount point" : "directory", | |
1894 | instance, | |
1895 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1896 | ||
1897 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1898 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1899 | } |
1900 | ||
1901 | static int clean_item(Item *i) { | |
78a92a5a MS |
1902 | assert(i); |
1903 | ||
582deb84 ZJS |
1904 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1905 | ||
78a92a5a MS |
1906 | switch (i->type) { |
1907 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1908 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1909 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1910 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
78a92a5a MS |
1911 | case TRUNCATE_DIRECTORY: |
1912 | case IGNORE_PATH: | |
849958d1 | 1913 | case COPY_FILES: |
78a92a5a | 1914 | clean_item_instance(i, i->path); |
df8dee85 | 1915 | return 0; |
65241c14 | 1916 | case EMPTY_DIRECTORY: |
78a92a5a | 1917 | case IGNORE_DIRECTORY_PATH: |
936f6bdb | 1918 | return glob_item(i, clean_item_instance); |
78a92a5a | 1919 | default: |
df8dee85 | 1920 | return 0; |
78a92a5a | 1921 | } |
78a92a5a MS |
1922 | } |
1923 | ||
3f93da98 ZJS |
1924 | static int process_item_array(ItemArray *array); |
1925 | ||
3b63d2d3 | 1926 | static int process_item(Item *i) { |
1e95893a | 1927 | int r, q, p, t = 0; |
9348f0e6 | 1928 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1929 | |
1930 | assert(i); | |
1931 | ||
1910cd0e LP |
1932 | if (i->done) |
1933 | return 0; | |
1934 | ||
1935 | i->done = true; | |
1936 | ||
9348f0e6 ZJS |
1937 | prefix = malloc(strlen(i->path) + 1); |
1938 | if (!prefix) | |
1939 | return log_oom(); | |
1940 | ||
1910cd0e | 1941 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1942 | ItemArray *j; |
1910cd0e | 1943 | |
ef43a391 | 1944 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
1945 | if (j) { |
1946 | int s; | |
1947 | ||
3f93da98 | 1948 | s = process_item_array(j); |
1db50423 ZJS |
1949 | if (s < 0 && t == 0) |
1950 | t = s; | |
1951 | } | |
1910cd0e LP |
1952 | } |
1953 | ||
655f2da0 N |
1954 | if (chase_symlinks(i->path, NULL, CHASE_NO_AUTOFS, NULL) == -EREMOTE) |
1955 | return t; | |
1956 | ||
3b63d2d3 | 1957 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1958 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1959 | p = arg_clean ? clean_item(i) : 0; |
1960 | ||
1db50423 ZJS |
1961 | return t < 0 ? t : |
1962 | r < 0 ? r : | |
1963 | q < 0 ? q : | |
1964 | p; | |
3b63d2d3 LP |
1965 | } |
1966 | ||
3f93da98 ZJS |
1967 | static int process_item_array(ItemArray *array) { |
1968 | unsigned n; | |
1969 | int r = 0, k; | |
753615e8 | 1970 | |
3f93da98 ZJS |
1971 | assert(array); |
1972 | ||
1973 | for (n = 0; n < array->count; n++) { | |
1974 | k = process_item(array->items + n); | |
1975 | if (k < 0 && r == 0) | |
1976 | r = k; | |
1977 | } | |
1978 | ||
1979 | return r; | |
1980 | } | |
3b63d2d3 | 1981 | |
3f93da98 ZJS |
1982 | static void item_free_contents(Item *i) { |
1983 | assert(i); | |
3b63d2d3 | 1984 | free(i->path); |
468d726b | 1985 | free(i->argument); |
ebf4e801 | 1986 | strv_free(i->xattrs); |
f8eeeaf9 | 1987 | |
349cc4a5 | 1988 | #if HAVE_ACL |
f8eeeaf9 ZJS |
1989 | acl_free(i->acl_access); |
1990 | acl_free(i->acl_default); | |
1991 | #endif | |
3b63d2d3 LP |
1992 | } |
1993 | ||
3f93da98 ZJS |
1994 | static void item_array_free(ItemArray *a) { |
1995 | unsigned n; | |
1996 | ||
1997 | if (!a) | |
1998 | return; | |
1999 | ||
2000 | for (n = 0; n < a->count; n++) | |
2001 | item_free_contents(a->items + n); | |
2002 | free(a->items); | |
2003 | free(a); | |
2004 | } | |
e2f2fb78 | 2005 | |
17493fa5 LP |
2006 | static int item_compare(const void *a, const void *b) { |
2007 | const Item *x = a, *y = b; | |
2008 | ||
2009 | /* Make sure that the ownership taking item is put first, so | |
2010 | * that we first create the node, and then can adjust it */ | |
2011 | ||
2012 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
2013 | return -1; | |
2014 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
2015 | return 1; | |
2016 | ||
2017 | return (int) x->type - (int) y->type; | |
2018 | } | |
2019 | ||
3f93da98 | 2020 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
2021 | assert(a); |
2022 | assert(b); | |
3f93da98 | 2023 | assert(streq(a->path, b->path)); |
bfe95f35 | 2024 | |
3f93da98 ZJS |
2025 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
2026 | /* check if the items are the same */ | |
2027 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 2028 | |
3f93da98 ZJS |
2029 | a->uid_set == b->uid_set && |
2030 | a->uid == b->uid && | |
bfe95f35 | 2031 | |
3f93da98 ZJS |
2032 | a->gid_set == b->gid_set && |
2033 | a->gid == b->gid && | |
bfe95f35 | 2034 | |
3f93da98 ZJS |
2035 | a->mode_set == b->mode_set && |
2036 | a->mode == b->mode && | |
bfe95f35 | 2037 | |
3f93da98 ZJS |
2038 | a->age_set == b->age_set && |
2039 | a->age == b->age && | |
bfe95f35 | 2040 | |
3f93da98 | 2041 | a->mask_perms == b->mask_perms && |
bfe95f35 | 2042 | |
3f93da98 | 2043 | a->keep_first_level == b->keep_first_level && |
468d726b | 2044 | |
3f93da98 | 2045 | a->major_minor == b->major_minor; |
468d726b | 2046 | |
bfe95f35 LP |
2047 | return true; |
2048 | } | |
2049 | ||
a2aced4a DR |
2050 | static bool should_include_path(const char *path) { |
2051 | char **prefix; | |
2052 | ||
abef3f91 | 2053 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
2054 | if (path_startswith(path, *prefix)) { |
2055 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
2056 | path, *prefix); | |
5c795114 | 2057 | return false; |
582deb84 | 2058 | } |
a2aced4a | 2059 | |
abef3f91 | 2060 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
2061 | if (path_startswith(path, *prefix)) { |
2062 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 2063 | return true; |
582deb84 | 2064 | } |
a2aced4a | 2065 | |
5c795114 DR |
2066 | /* no matches, so we should include this path only if we |
2067 | * have no whitelist at all */ | |
7b943bb7 | 2068 | if (strv_isempty(arg_include_prefixes)) |
582deb84 ZJS |
2069 | return true; |
2070 | ||
2071 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
2072 | return false; | |
a2aced4a DR |
2073 | } |
2074 | ||
4cef1923 FB |
2075 | static int specifier_expansion_from_arg(Item *i) { |
2076 | _cleanup_free_ char *unescaped = NULL, *resolved = NULL; | |
2077 | char **xattr; | |
2078 | int r; | |
2079 | ||
2080 | assert(i); | |
2081 | ||
2082 | if (i->argument == NULL) | |
2083 | return 0; | |
2084 | ||
2085 | switch (i->type) { | |
2086 | case COPY_FILES: | |
2087 | case CREATE_SYMLINK: | |
2088 | case CREATE_FILE: | |
2089 | case TRUNCATE_FILE: | |
2090 | case WRITE_FILE: | |
2091 | r = cunescape(i->argument, 0, &unescaped); | |
2092 | if (r < 0) | |
2093 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
2094 | ||
2095 | r = specifier_printf(unescaped, specifier_table, NULL, &resolved); | |
2096 | if (r < 0) | |
2097 | return r; | |
2098 | ||
2099 | free_and_replace(i->argument, resolved); | |
2100 | break; | |
2101 | ||
2102 | case SET_XATTR: | |
2103 | case RECURSIVE_SET_XATTR: | |
2104 | assert(i->xattrs); | |
2105 | ||
2106 | STRV_FOREACH (xattr, i->xattrs) { | |
2107 | r = specifier_printf(*xattr, specifier_table, NULL, &resolved); | |
2108 | if (r < 0) | |
2109 | return r; | |
2110 | ||
2111 | free_and_replace(*xattr, resolved); | |
2112 | } | |
2113 | break; | |
2114 | ||
2115 | default: | |
2116 | break; | |
2117 | } | |
2118 | return 0; | |
2119 | } | |
2120 | ||
a2d1fb88 LP |
2121 | static int patch_var_run(const char *fname, unsigned line, char **path) { |
2122 | const char *k; | |
2123 | char *n; | |
2124 | ||
2125 | assert(path); | |
2126 | assert(*path); | |
2127 | ||
2128 | /* Optionally rewrites lines referencing /var/run/, to use /run/ instead. Why bother? tmpfiles merges lines in | |
2129 | * some cases and detects conflicts in others. If files/directories are specified through two equivalent lines | |
2130 | * this is problematic as neither case will be detected. Ideally we'd detect these cases by resolving symlinks | |
2131 | * early, but that's precisely not what we can do here as this code very likely is running very early on, at a | |
2132 | * time where the paths in question are not available yet, or even more importantly, our own tmpfiles rules | |
2133 | * might create the paths that are intermediary to the listed paths. We can't really cover the generic case, | |
2134 | * but the least we can do is cover the specific case of /var/run vs. /run, as /var/run is a legacy name for | |
2135 | * /run only, and we explicitly document that and require that on systemd systems the former is a symlink to | |
2136 | * the latter. Moreover files below this path are by far the primary usecase for tmpfiles.d/. */ | |
2137 | ||
2138 | k = path_startswith(*path, "/var/run/"); | |
2139 | if (isempty(k)) /* Don't complain about other paths than /var/run, and not about /var/run itself either. */ | |
2140 | return 0; | |
2141 | ||
2142 | n = strjoin("/run/", k); | |
2143 | if (!n) | |
2144 | return log_oom(); | |
2145 | ||
2146 | /* Also log about this briefly. We do so at LOG_NOTICE level, as we fixed up the situation automatically, hence | |
2147 | * there's no immediate need for action by the user. However, in the interest of making things less confusing | |
2148 | * to the user, let's still inform the user that these snippets should really be updated. */ | |
2149 | ||
2150 | log_notice("[%s:%u] Line references path below legacy directory /var/run/, updating %s → %s; please update the tmpfiles.d/ drop-in file accordingly.", fname, line, *path, n); | |
2151 | ||
2152 | free(*path); | |
2153 | *path = n; | |
2154 | ||
2155 | return 0; | |
2156 | } | |
2157 | ||
d9daae55 | 2158 | static int parse_line(const char *fname, unsigned line, const char *buffer, bool *invalid_config) { |
1731e34a | 2159 | |
cde684a2 | 2160 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
2161 | _cleanup_(item_free_contents) Item i = {}; |
2162 | ItemArray *existing; | |
ef43a391 | 2163 | OrderedHashmap *h; |
657cf7f4 | 2164 | int r, pos; |
5f255144 | 2165 | bool force = false, boot = false; |
3b63d2d3 LP |
2166 | |
2167 | assert(fname); | |
2168 | assert(line >= 1); | |
2169 | assert(buffer); | |
2170 | ||
68685607 | 2171 | r = extract_many_words( |
4034a06d | 2172 | &buffer, |
68685607 | 2173 | NULL, |
12ba2c44 | 2174 | EXTRACT_QUOTES, |
4034a06d LP |
2175 | &action, |
2176 | &path, | |
2177 | &mode, | |
2178 | &user, | |
2179 | &group, | |
2180 | &age, | |
2181 | NULL); | |
d9daae55 | 2182 | if (r < 0) { |
751223fe ZJS |
2183 | if (IN_SET(r, -EINVAL, -EBADSLT)) |
2184 | /* invalid quoting and such or an unknown specifier */ | |
d9daae55 | 2185 | *invalid_config = true; |
657cf7f4 | 2186 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); |
4b93699d | 2187 | } else if (r < 2) { |
d9daae55 | 2188 | *invalid_config = true; |
3b63d2d3 | 2189 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 2190 | return -EIO; |
5008d581 LP |
2191 | } |
2192 | ||
aa5f6817 | 2193 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
2194 | i.argument = strdup(buffer); |
2195 | if (!i.argument) | |
2196 | return log_oom(); | |
2197 | } | |
2198 | ||
2e78fa79 | 2199 | if (isempty(action)) { |
d9daae55 | 2200 | *invalid_config = true; |
2e78fa79 | 2201 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); |
c4708f13 | 2202 | return -EINVAL; |
2e78fa79 LP |
2203 | } |
2204 | ||
5f255144 ZJS |
2205 | for (pos = 1; action[pos]; pos++) { |
2206 | if (action[pos] == '!' && !boot) | |
2207 | boot = true; | |
2208 | else if (action[pos] == '+' && !force) | |
2209 | force = true; | |
2210 | else { | |
d9daae55 | 2211 | *invalid_config = true; |
5f255144 ZJS |
2212 | log_error("[%s:%u] Unknown modifiers in command '%s'", |
2213 | fname, line, action); | |
2214 | return -EINVAL; | |
2215 | } | |
2e78fa79 LP |
2216 | } |
2217 | ||
582deb84 ZJS |
2218 | if (boot && !arg_boot) { |
2219 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
2220 | action, path); | |
c4708f13 | 2221 | return 0; |
582deb84 | 2222 | } |
c4708f13 | 2223 | |
3f93da98 ZJS |
2224 | i.type = action[0]; |
2225 | i.force = force; | |
2e78fa79 | 2226 | |
3f93da98 | 2227 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
5a8575ef | 2228 | if (r == -ENXIO) |
4cef1923 | 2229 | return log_unresolvable_specifier(fname, line); |
d9daae55 | 2230 | if (r < 0) { |
751223fe ZJS |
2231 | if (IN_SET(r, -EINVAL, -EBADSLT)) |
2232 | *invalid_config = true; | |
4cef1923 | 2233 | return log_error_errno(r, "[%s:%u] Failed to replace specifiers: %s", fname, line, path); |
d9daae55 | 2234 | } |
1731e34a | 2235 | |
a2d1fb88 LP |
2236 | r = patch_var_run(fname, line, &i.path); |
2237 | if (r < 0) | |
2238 | return r; | |
2239 | ||
3f93da98 | 2240 | switch (i.type) { |
468d726b | 2241 | |
777b87e7 | 2242 | case CREATE_DIRECTORY: |
d7b8eec7 | 2243 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
2244 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
2245 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
df8dee85 | 2246 | case EMPTY_DIRECTORY: |
777b87e7 MS |
2247 | case TRUNCATE_DIRECTORY: |
2248 | case CREATE_FIFO: | |
2249 | case IGNORE_PATH: | |
78a92a5a | 2250 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
2251 | case REMOVE_PATH: |
2252 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 2253 | case ADJUST_MODE: |
777b87e7 MS |
2254 | case RELABEL_PATH: |
2255 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 2256 | if (i.argument) |
bd550f78 | 2257 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
2258 | |
2259 | break; | |
2260 | ||
2261 | case CREATE_FILE: | |
2262 | case TRUNCATE_FILE: | |
777b87e7 | 2263 | break; |
468d726b LP |
2264 | |
2265 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
2266 | if (!i.argument) { |
2267 | i.argument = strappend("/usr/share/factory/", i.path); | |
2268 | if (!i.argument) | |
2f3b873a | 2269 | return log_oom(); |
468d726b LP |
2270 | } |
2271 | break; | |
2272 | ||
31ed59c5 | 2273 | case WRITE_FILE: |
3f93da98 | 2274 | if (!i.argument) { |
d9daae55 | 2275 | *invalid_config = true; |
31ed59c5 | 2276 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 2277 | return -EBADMSG; |
31ed59c5 LP |
2278 | } |
2279 | break; | |
2280 | ||
849958d1 | 2281 | case COPY_FILES: |
3f93da98 ZJS |
2282 | if (!i.argument) { |
2283 | i.argument = strappend("/usr/share/factory/", i.path); | |
2284 | if (!i.argument) | |
2f3b873a | 2285 | return log_oom(); |
3f93da98 | 2286 | } else if (!path_is_absolute(i.argument)) { |
d9daae55 | 2287 | *invalid_config = true; |
849958d1 LP |
2288 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
2289 | return -EBADMSG; | |
2290 | } | |
2291 | ||
858d36c1 | 2292 | path_simplify(i.argument, false); |
849958d1 LP |
2293 | break; |
2294 | ||
468d726b LP |
2295 | case CREATE_CHAR_DEVICE: |
2296 | case CREATE_BLOCK_DEVICE: { | |
2297 | unsigned major, minor; | |
2298 | ||
3f93da98 | 2299 | if (!i.argument) { |
d9daae55 | 2300 | *invalid_config = true; |
468d726b | 2301 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 2302 | return -EBADMSG; |
468d726b LP |
2303 | } |
2304 | ||
3f93da98 | 2305 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
d9daae55 | 2306 | *invalid_config = true; |
3f93da98 | 2307 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); |
7f2c1f4d | 2308 | return -EBADMSG; |
468d726b LP |
2309 | } |
2310 | ||
3f93da98 | 2311 | i.major_minor = makedev(major, minor); |
468d726b LP |
2312 | break; |
2313 | } | |
2314 | ||
ebf4e801 | 2315 | case SET_XATTR: |
b705ab6a | 2316 | case RECURSIVE_SET_XATTR: |
3f93da98 | 2317 | if (!i.argument) { |
d9daae55 | 2318 | *invalid_config = true; |
ebf4e801 MW |
2319 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
2320 | return -EBADMSG; | |
2321 | } | |
bd550f78 | 2322 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
2323 | if (r < 0) |
2324 | return r; | |
2325 | break; | |
2326 | ||
f8eeeaf9 | 2327 | case SET_ACL: |
b705ab6a | 2328 | case RECURSIVE_SET_ACL: |
f8eeeaf9 | 2329 | if (!i.argument) { |
d9daae55 | 2330 | *invalid_config = true; |
f8eeeaf9 ZJS |
2331 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); |
2332 | return -EBADMSG; | |
2333 | } | |
bd550f78 | 2334 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
2335 | if (r < 0) |
2336 | return r; | |
2337 | break; | |
2338 | ||
88ec4dfa LP |
2339 | case SET_ATTRIBUTE: |
2340 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 2341 | if (!i.argument) { |
d9daae55 | 2342 | *invalid_config = true; |
88ec4dfa | 2343 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
2344 | return -EBADMSG; |
2345 | } | |
bd550f78 | 2346 | r = parse_attribute_from_arg(&i); |
751223fe | 2347 | if (IN_SET(r, -EINVAL, -EBADSLT)) |
d9daae55 | 2348 | *invalid_config = true; |
22c3a6ca GB |
2349 | if (r < 0) |
2350 | return r; | |
2351 | break; | |
2352 | ||
777b87e7 | 2353 | default: |
582deb84 | 2354 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
d9daae55 | 2355 | *invalid_config = true; |
7f2c1f4d | 2356 | return -EBADMSG; |
3b63d2d3 | 2357 | } |
468d726b | 2358 | |
3f93da98 ZJS |
2359 | if (!path_is_absolute(i.path)) { |
2360 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
d9daae55 | 2361 | *invalid_config = true; |
7f2c1f4d | 2362 | return -EBADMSG; |
3b63d2d3 LP |
2363 | } |
2364 | ||
858d36c1 | 2365 | path_simplify(i.path, false); |
3b63d2d3 | 2366 | |
3f93da98 | 2367 | if (!should_include_path(i.path)) |
7f2c1f4d | 2368 | return 0; |
5008d581 | 2369 | |
4cef1923 | 2370 | r = specifier_expansion_from_arg(&i); |
5a8575ef | 2371 | if (r == -ENXIO) |
4cef1923 | 2372 | return log_unresolvable_specifier(fname, line); |
751223fe ZJS |
2373 | if (r < 0) { |
2374 | if (IN_SET(r, -EINVAL, -EBADSLT)) | |
2375 | *invalid_config = true; | |
4cef1923 FB |
2376 | return log_error_errno(r, "[%s:%u] Failed to substitute specifiers in argument: %m", |
2377 | fname, line); | |
751223fe | 2378 | } |
4cef1923 | 2379 | |
cf9a4abd | 2380 | if (arg_root) { |
cde684a2 LP |
2381 | char *p; |
2382 | ||
1d13f648 | 2383 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
2384 | if (!p) |
2385 | return log_oom(); | |
2386 | ||
3f93da98 ZJS |
2387 | free(i.path); |
2388 | i.path = p; | |
cf9a4abd MM |
2389 | } |
2390 | ||
90937fe3 | 2391 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
2392 | const char *u = user; |
2393 | ||
3f93da98 | 2394 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 2395 | if (r < 0) { |
d9daae55 ZJS |
2396 | *invalid_config = true; |
2397 | return log_error_errno(r, "[%s:%u] Unknown user '%s'.", fname, line, user); | |
3b63d2d3 LP |
2398 | } |
2399 | ||
3f93da98 | 2400 | i.uid_set = true; |
3b63d2d3 LP |
2401 | } |
2402 | ||
90937fe3 | 2403 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
2404 | const char *g = group; |
2405 | ||
3f93da98 | 2406 | r = get_group_creds(&g, &i.gid); |
4b67834e | 2407 | if (r < 0) { |
d9daae55 | 2408 | *invalid_config = true; |
3b63d2d3 | 2409 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 2410 | return r; |
3b63d2d3 LP |
2411 | } |
2412 | ||
3f93da98 | 2413 | i.gid_set = true; |
3b63d2d3 LP |
2414 | } |
2415 | ||
90937fe3 | 2416 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 2417 | const char *mm = mode; |
3b63d2d3 LP |
2418 | unsigned m; |
2419 | ||
abef3f91 | 2420 | if (*mm == '~') { |
3f93da98 | 2421 | i.mask_perms = true; |
abef3f91 LP |
2422 | mm++; |
2423 | } | |
2424 | ||
2ff7b0a5 | 2425 | if (parse_mode(mm, &m) < 0) { |
d9daae55 | 2426 | *invalid_config = true; |
3b63d2d3 | 2427 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2428 | return -EBADMSG; |
3b63d2d3 LP |
2429 | } |
2430 | ||
3f93da98 ZJS |
2431 | i.mode = m; |
2432 | i.mode_set = true; | |
3b63d2d3 | 2433 | } else |
5fb13eb5 | 2434 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2435 | |
90937fe3 | 2436 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2437 | const char *a = age; |
2438 | ||
2439 | if (*a == '~') { | |
3f93da98 | 2440 | i.keep_first_level = true; |
24f3a374 LP |
2441 | a++; |
2442 | } | |
2443 | ||
3f93da98 | 2444 | if (parse_sec(a, &i.age) < 0) { |
d9daae55 | 2445 | *invalid_config = true; |
3b63d2d3 | 2446 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2447 | return -EBADMSG; |
3b63d2d3 LP |
2448 | } |
2449 | ||
3f93da98 | 2450 | i.age_set = true; |
3b63d2d3 LP |
2451 | } |
2452 | ||
3f93da98 | 2453 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2454 | |
ef43a391 | 2455 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2456 | if (existing) { |
3f93da98 ZJS |
2457 | unsigned n; |
2458 | ||
2459 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2460 | if (!item_compatible(existing->items + n, &i)) { |
e286dbaf ZJS |
2461 | log_notice("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
2462 | fname, line, i.path); | |
6487ada8 MP |
2463 | return 0; |
2464 | } | |
ebf4e801 MW |
2465 | } |
2466 | } else { | |
3f93da98 | 2467 | existing = new0(ItemArray, 1); |
07982ed1 LP |
2468 | if (!existing) |
2469 | return log_oom(); | |
2470 | ||
ef43a391 | 2471 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2472 | if (r < 0) |
2473 | return log_oom(); | |
bfe95f35 LP |
2474 | } |
2475 | ||
3f93da98 ZJS |
2476 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2477 | return log_oom(); | |
5008d581 | 2478 | |
3f93da98 | 2479 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2480 | |
2481 | /* Sort item array, to enforce stable ordering of application */ | |
2482 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2483 | |
3f93da98 | 2484 | zero(i); |
7f2c1f4d | 2485 | return 0; |
5008d581 LP |
2486 | } |
2487 | ||
ceaaeb9b ZJS |
2488 | static int cat_config(char **config_dirs, char **args) { |
2489 | _cleanup_strv_free_ char **files = NULL; | |
2490 | int r; | |
2491 | ||
2492 | r = conf_files_list_with_replacement(arg_root, config_dirs, arg_replace, &files, NULL); | |
2493 | if (r < 0) | |
2494 | return r; | |
2495 | ||
2496 | return cat_files(NULL, files, 0); | |
2497 | } | |
2498 | ||
601185b4 | 2499 | static void help(void) { |
522d4a49 LP |
2500 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2501 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2502 | " -h --help Show this help\n" |
f2b5ca0e | 2503 | " --user Execute user configuration\n" |
eb9da376 | 2504 | " --version Show package version\n" |
ceaaeb9b | 2505 | " --cat-config Show configuration files\n" |
5c795114 DR |
2506 | " --create Create marked files/directories\n" |
2507 | " --clean Clean up marked directories\n" | |
2508 | " --remove Remove marked files/directories\n" | |
81815651 | 2509 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2510 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2511 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
d9daae55 | 2512 | " --root=PATH Operate on an alternate filesystem root\n" |
a6d8474f | 2513 | " --replace=PATH Treat arguments as replacement for PATH\n" |
d9daae55 | 2514 | , program_invocation_short_name); |
3b63d2d3 LP |
2515 | } |
2516 | ||
2517 | static int parse_argv(int argc, char *argv[]) { | |
2518 | ||
2519 | enum { | |
eb9da376 | 2520 | ARG_VERSION = 0x100, |
ceaaeb9b | 2521 | ARG_CAT_CONFIG, |
f2b5ca0e | 2522 | ARG_USER, |
3b63d2d3 LP |
2523 | ARG_CREATE, |
2524 | ARG_CLEAN, | |
fba6e687 | 2525 | ARG_REMOVE, |
81815651 | 2526 | ARG_BOOT, |
5c795114 DR |
2527 | ARG_PREFIX, |
2528 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2529 | ARG_ROOT, |
a6d8474f | 2530 | ARG_REPLACE, |
3b63d2d3 LP |
2531 | }; |
2532 | ||
2533 | static const struct option options[] = { | |
5c795114 | 2534 | { "help", no_argument, NULL, 'h' }, |
f2b5ca0e | 2535 | { "user", no_argument, NULL, ARG_USER }, |
eb9da376 | 2536 | { "version", no_argument, NULL, ARG_VERSION }, |
ceaaeb9b | 2537 | { "cat-config", no_argument, NULL, ARG_CAT_CONFIG }, |
5c795114 DR |
2538 | { "create", no_argument, NULL, ARG_CREATE }, |
2539 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2540 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2541 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2542 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2543 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2544 | { "root", required_argument, NULL, ARG_ROOT }, |
a6d8474f | 2545 | { "replace", required_argument, NULL, ARG_REPLACE }, |
eb9da376 | 2546 | {} |
3b63d2d3 LP |
2547 | }; |
2548 | ||
0f474365 | 2549 | int c, r; |
3b63d2d3 LP |
2550 | |
2551 | assert(argc >= 0); | |
2552 | assert(argv); | |
2553 | ||
601185b4 | 2554 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2555 | |
2556 | switch (c) { | |
2557 | ||
2558 | case 'h': | |
601185b4 ZJS |
2559 | help(); |
2560 | return 0; | |
eb9da376 LP |
2561 | |
2562 | case ARG_VERSION: | |
3f6fd1ba | 2563 | return version(); |
3b63d2d3 | 2564 | |
ceaaeb9b ZJS |
2565 | case ARG_CAT_CONFIG: |
2566 | arg_cat_config = true; | |
2567 | break; | |
2568 | ||
f2b5ca0e ZJS |
2569 | case ARG_USER: |
2570 | arg_user = true; | |
2571 | break; | |
2572 | ||
3b63d2d3 LP |
2573 | case ARG_CREATE: |
2574 | arg_create = true; | |
2575 | break; | |
2576 | ||
2577 | case ARG_CLEAN: | |
2578 | arg_clean = true; | |
2579 | break; | |
2580 | ||
2581 | case ARG_REMOVE: | |
2582 | arg_remove = true; | |
2583 | break; | |
2584 | ||
81815651 ZJS |
2585 | case ARG_BOOT: |
2586 | arg_boot = true; | |
c4708f13 ZJS |
2587 | break; |
2588 | ||
fba6e687 | 2589 | case ARG_PREFIX: |
7bc040fa | 2590 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2591 | return log_oom(); |
fba6e687 LP |
2592 | break; |
2593 | ||
5c795114 | 2594 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2595 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2596 | return log_oom(); |
2597 | break; | |
2598 | ||
cf9a4abd | 2599 | case ARG_ROOT: |
0f03c2a4 | 2600 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 2601 | if (r < 0) |
0f03c2a4 | 2602 | return r; |
cf9a4abd MM |
2603 | break; |
2604 | ||
a6d8474f ZJS |
2605 | case ARG_REPLACE: |
2606 | if (!path_is_absolute(optarg) || | |
2607 | !endswith(optarg, ".conf")) { | |
2608 | log_error("The argument to --replace= must an absolute path to a config file"); | |
2609 | return -EINVAL; | |
2610 | } | |
2611 | ||
2612 | arg_replace = optarg; | |
2613 | break; | |
2614 | ||
3b63d2d3 LP |
2615 | case '?': |
2616 | return -EINVAL; | |
2617 | ||
2618 | default: | |
eb9da376 | 2619 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2620 | } |
3b63d2d3 | 2621 | |
ceaaeb9b | 2622 | if (!arg_clean && !arg_create && !arg_remove && !arg_cat_config) { |
35b8ca3a | 2623 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2624 | return -EINVAL; |
2625 | } | |
2626 | ||
ceaaeb9b ZJS |
2627 | if (arg_replace && arg_cat_config) { |
2628 | log_error("Option --replace= is not supported with --cat-config"); | |
2629 | return -EINVAL; | |
2630 | } | |
2631 | ||
a6d8474f ZJS |
2632 | if (arg_replace && optind >= argc) { |
2633 | log_error("When --replace= is given, some configuration items must be specified"); | |
2634 | return -EINVAL; | |
2635 | } | |
2636 | ||
3b63d2d3 LP |
2637 | return 1; |
2638 | } | |
2639 | ||
a6d8474f | 2640 | static int read_config_file(char **config_dirs, const char *fn, bool ignore_enoent, bool *invalid_config) { |
f7ac1ed2 ZJS |
2641 | _cleanup_fclose_ FILE *_f = NULL; |
2642 | FILE *f; | |
1731e34a | 2643 | char line[LINE_MAX]; |
78a92a5a | 2644 | Iterator iterator; |
1731e34a | 2645 | unsigned v = 0; |
78a92a5a | 2646 | Item *i; |
4e68ec18 | 2647 | int r = 0; |
fba6e687 LP |
2648 | |
2649 | assert(fn); | |
2650 | ||
f7ac1ed2 | 2651 | if (streq(fn, "-")) { |
a6d8474f | 2652 | log_debug("Reading config from stdin…"); |
f7ac1ed2 ZJS |
2653 | fn = "<stdin>"; |
2654 | f = stdin; | |
2655 | } else { | |
a6d8474f | 2656 | r = search_and_fopen(fn, "re", arg_root, (const char**) config_dirs, &_f); |
f7ac1ed2 ZJS |
2657 | if (r < 0) { |
2658 | if (ignore_enoent && r == -ENOENT) { | |
2659 | log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn); | |
2660 | return 0; | |
2661 | } | |
fba6e687 | 2662 | |
f7ac1ed2 ZJS |
2663 | return log_error_errno(r, "Failed to open '%s': %m", fn); |
2664 | } | |
a6d8474f | 2665 | log_debug("Reading config file \"%s\"…", fn); |
f7ac1ed2 | 2666 | f = _f; |
fba6e687 LP |
2667 | } |
2668 | ||
1731e34a LP |
2669 | FOREACH_LINE(line, f, break) { |
2670 | char *l; | |
fba6e687 | 2671 | int k; |
d9daae55 | 2672 | bool invalid_line = false; |
fba6e687 | 2673 | |
fba6e687 LP |
2674 | v++; |
2675 | ||
2676 | l = strstrip(line); | |
4c701096 | 2677 | if (IN_SET(*l, 0, '#')) |
fba6e687 LP |
2678 | continue; |
2679 | ||
d9daae55 ZJS |
2680 | k = parse_line(fn, v, l, &invalid_line); |
2681 | if (k < 0) { | |
2682 | if (invalid_line) | |
2683 | /* Allow reporting with a special code if the caller requested this */ | |
2684 | *invalid_config = true; | |
2685 | else if (r == 0) | |
2686 | /* The first error becomes our return value */ | |
2687 | r = k; | |
2688 | } | |
fba6e687 LP |
2689 | } |
2690 | ||
78a92a5a | 2691 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2692 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2693 | Iterator iter; |
2694 | Item *j, *candidate_item = NULL; | |
2695 | ||
2696 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2697 | continue; | |
2698 | ||
ef43a391 | 2699 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2700 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2701 | continue; |
2702 | ||
2703 | if (path_equal(j->path, i->path)) { | |
2704 | candidate_item = j; | |
2705 | break; | |
2706 | } | |
2707 | ||
2708 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2709 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2710 | candidate_item = j; | |
2711 | } | |
2712 | ||
9ed2a35e | 2713 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2714 | i->age = candidate_item->age; |
2715 | i->age_set = true; | |
2716 | } | |
2717 | } | |
2718 | ||
fba6e687 | 2719 | if (ferror(f)) { |
56f64d95 | 2720 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2721 | if (r == 0) |
2722 | r = -EIO; | |
2723 | } | |
2724 | ||
fba6e687 LP |
2725 | return r; |
2726 | } | |
2727 | ||
a6d8474f ZJS |
2728 | static int parse_arguments(char **config_dirs, char **args, bool *invalid_config) { |
2729 | char **arg; | |
2730 | int r; | |
2731 | ||
2732 | STRV_FOREACH(arg, args) { | |
2733 | r = read_config_file(config_dirs, *arg, false, invalid_config); | |
2734 | if (r < 0) | |
2735 | return r; | |
2736 | } | |
2737 | ||
2738 | return 0; | |
2739 | } | |
2740 | ||
2741 | static int read_config_files(char **config_dirs, char **args, bool *invalid_config) { | |
2742 | _cleanup_strv_free_ char **files = NULL; | |
2743 | _cleanup_free_ char *p = NULL; | |
2744 | char **f; | |
2745 | int r; | |
2746 | ||
ceaaeb9b | 2747 | r = conf_files_list_with_replacement(arg_root, config_dirs, arg_replace, &files, &p); |
a6d8474f | 2748 | if (r < 0) |
ceaaeb9b | 2749 | return r; |
a6d8474f ZJS |
2750 | |
2751 | STRV_FOREACH(f, files) | |
2752 | if (p && path_equal(*f, p)) { | |
2753 | log_debug("Parsing arguments at position \"%s\"…", *f); | |
2754 | ||
2755 | r = parse_arguments(config_dirs, args, invalid_config); | |
2756 | if (r < 0) | |
2757 | return r; | |
2758 | } else | |
2759 | /* Just warn, ignore result otherwise. | |
2760 | * read_config_file() has some debug output, so no need to print anything. */ | |
2761 | (void) read_config_file(config_dirs, *f, true, invalid_config); | |
2762 | ||
2763 | return 0; | |
2764 | } | |
2765 | ||
5008d581 | 2766 | int main(int argc, char *argv[]) { |
bb9947be | 2767 | int r, k, r_process = 0; |
3f93da98 | 2768 | ItemArray *a; |
3b63d2d3 | 2769 | Iterator iterator; |
f2b5ca0e | 2770 | _cleanup_strv_free_ char **config_dirs = NULL; |
d9daae55 | 2771 | bool invalid_config = false; |
3b63d2d3 | 2772 | |
fdcad0c2 LP |
2773 | r = parse_argv(argc, argv); |
2774 | if (r <= 0) | |
753615e8 | 2775 | goto finish; |
5008d581 | 2776 | |
eb0ca9eb | 2777 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2778 | log_parse_environment(); |
2779 | log_open(); | |
2780 | ||
f2b5ca0e ZJS |
2781 | if (arg_user) { |
2782 | r = user_config_paths(&config_dirs); | |
2783 | if (r < 0) { | |
2784 | log_error_errno(r, "Failed to initialize configuration directory list: %m"); | |
2785 | goto finish; | |
2786 | } | |
2787 | } else { | |
2788 | config_dirs = strv_split_nulstr(CONF_PATHS_NULSTR("tmpfiles.d")); | |
2789 | if (!config_dirs) { | |
2790 | r = log_oom(); | |
2791 | goto finish; | |
2792 | } | |
2793 | } | |
2794 | ||
79c91cec | 2795 | if (DEBUG_LOGGING) { |
f2b5ca0e ZJS |
2796 | _cleanup_free_ char *t = NULL; |
2797 | ||
2798 | t = strv_join(config_dirs, "\n\t"); | |
2799 | if (t) | |
bb9947be | 2800 | log_debug("Looking for configuration files in (higher priority first):\n\t%s", t); |
f2b5ca0e ZJS |
2801 | } |
2802 | ||
ceaaeb9b ZJS |
2803 | if (arg_cat_config) { |
2804 | r = cat_config(config_dirs, argv + optind); | |
2805 | goto finish; | |
2806 | } | |
2807 | ||
2808 | umask(0022); | |
2809 | ||
2810 | mac_selinux_init(); | |
2811 | ||
2812 | items = ordered_hashmap_new(&string_hash_ops); | |
2813 | globs = ordered_hashmap_new(&string_hash_ops); | |
2814 | ||
2815 | if (!items || !globs) { | |
2816 | r = log_oom(); | |
2817 | goto finish; | |
2818 | } | |
2819 | ||
a6d8474f ZJS |
2820 | /* If command line arguments are specified along with --replace, read all |
2821 | * configuration files and insert the positional arguments at the specified | |
2822 | * place. Otherwise, if command line arguments are specified, execute just | |
2823 | * them, and finally, without --replace= or any positional arguments, just | |
2824 | * read configuration and execute it. | |
2825 | */ | |
2826 | if (arg_replace || optind >= argc) | |
2827 | r = read_config_files(config_dirs, argv + optind, &invalid_config); | |
2828 | else | |
2829 | r = parse_arguments(config_dirs, argv + optind, &invalid_config); | |
2830 | if (r < 0) | |
2831 | goto finish; | |
5008d581 | 2832 | |
17493fa5 LP |
2833 | /* The non-globbing ones usually create things, hence we apply |
2834 | * them first */ | |
ef43a391 | 2835 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 2836 | k = process_item_array(a); |
bb9947be ZJS |
2837 | if (k < 0 && r_process == 0) |
2838 | r_process = k; | |
1db50423 | 2839 | } |
b8bb3e8f | 2840 | |
17493fa5 LP |
2841 | /* The globbing ones usually alter things, hence we apply them |
2842 | * second. */ | |
ef43a391 | 2843 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 2844 | k = process_item_array(a); |
bb9947be ZJS |
2845 | if (k < 0 && r_process == 0) |
2846 | r_process = k; | |
1db50423 | 2847 | } |
3b63d2d3 | 2848 | |
5008d581 | 2849 | finish: |
224b0e7a ZJS |
2850 | ordered_hashmap_free_with_destructor(items, item_array_free); |
2851 | ordered_hashmap_free_with_destructor(globs, item_array_free); | |
5008d581 | 2852 | |
7bc040fa LP |
2853 | free(arg_include_prefixes); |
2854 | free(arg_exclude_prefixes); | |
cf9a4abd | 2855 | free(arg_root); |
a2aced4a | 2856 | |
17b90525 LP |
2857 | set_free_free(unix_sockets); |
2858 | ||
cc56fafe | 2859 | mac_selinux_finish(); |
29003cff | 2860 | |
bb9947be | 2861 | if (r < 0 || ERRNO_IS_RESOURCE(-r_process)) |
d9daae55 ZJS |
2862 | return EXIT_FAILURE; |
2863 | else if (invalid_config) | |
2864 | return EX_DATAERR; | |
bb9947be ZJS |
2865 | else if (r_process < 0) |
2866 | return EX_CANTCREAT; | |
d9daae55 ZJS |
2867 | else |
2868 | return EXIT_SUCCESS; | |
5008d581 | 2869 | } |