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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
5008d581 | 2 | |
5008d581 | 3 | #include <errno.h> |
3f6fd1ba LP |
4 | #include <fcntl.h> |
5 | #include <fnmatch.h> | |
6 | #include <getopt.h> | |
7 | #include <glob.h> | |
5008d581 | 8 | #include <limits.h> |
3f6fd1ba LP |
9 | #include <linux/fs.h> |
10 | #include <stdbool.h> | |
11 | #include <stddef.h> | |
3b63d2d3 LP |
12 | #include <stdio.h> |
13 | #include <stdlib.h> | |
3f6fd1ba | 14 | #include <string.h> |
505ef0e3 | 15 | #include <sys/stat.h> |
ebf4e801 | 16 | #include <sys/xattr.h> |
d9daae55 | 17 | #include <sysexits.h> |
3f6fd1ba LP |
18 | #include <time.h> |
19 | #include <unistd.h> | |
5008d581 | 20 | |
5a8575ef ZJS |
21 | #include "sd-path.h" |
22 | ||
3f6fd1ba | 23 | #include "acl-util.h" |
b5efdb8a | 24 | #include "alloc-util.h" |
3f6fd1ba | 25 | #include "btrfs-util.h" |
430f0182 | 26 | #include "capability-util.h" |
c8b3094d | 27 | #include "chattr-util.h" |
3f6fd1ba LP |
28 | #include "conf-files.h" |
29 | #include "copy.h" | |
a0f29c76 | 30 | #include "def.h" |
8fb3f009 | 31 | #include "dirent-util.h" |
4f5dd394 | 32 | #include "escape.h" |
3ffd4af2 | 33 | #include "fd-util.h" |
0d39fa9c | 34 | #include "fileio.h" |
f97b34a6 | 35 | #include "format-util.h" |
f4f15635 | 36 | #include "fs-util.h" |
7d50b32a | 37 | #include "glob-util.h" |
c004493c | 38 | #include "io-util.h" |
3f6fd1ba | 39 | #include "label.h" |
5008d581 | 40 | #include "log.h" |
54693d9b | 41 | #include "macro.h" |
d39efe74 | 42 | #include "missing.h" |
49e942b2 | 43 | #include "mkdir.h" |
4e036b7a | 44 | #include "mount-util.h" |
dcd5c891 | 45 | #include "pager.h" |
6bedfcbb | 46 | #include "parse-util.h" |
f2b5ca0e | 47 | #include "path-lookup.h" |
9eb977db | 48 | #include "path-util.h" |
c6878637 | 49 | #include "rm-rf.h" |
d7b8eec7 | 50 | #include "selinux-util.h" |
3f6fd1ba LP |
51 | #include "set.h" |
52 | #include "specifier.h" | |
8fcde012 | 53 | #include "stat-util.h" |
15a5e950 | 54 | #include "stdio-util.h" |
8b43440b | 55 | #include "string-table.h" |
07630cea | 56 | #include "string-util.h" |
3f6fd1ba | 57 | #include "strv.h" |
ceaaeb9b | 58 | #include "terminal-util.h" |
affb60b1 | 59 | #include "umask-util.h" |
b1d4f8e1 | 60 | #include "user-util.h" |
3f6fd1ba | 61 | #include "util.h" |
5008d581 | 62 | |
01000479 | 63 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 64 | * them in the file system. This is intended to be used to create |
db019b8d KS |
65 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
66 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 67 | |
66ccd038 | 68 | typedef enum ItemType { |
b8bb3e8f | 69 | /* These ones take file names */ |
3b63d2d3 LP |
70 | CREATE_FILE = 'f', |
71 | TRUNCATE_FILE = 'F', | |
72 | CREATE_DIRECTORY = 'd', | |
73 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 74 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
75 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
76 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 77 | CREATE_FIFO = 'p', |
468d726b LP |
78 | CREATE_SYMLINK = 'L', |
79 | CREATE_CHAR_DEVICE = 'c', | |
80 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 81 | COPY_FILES = 'C', |
b8bb3e8f LP |
82 | |
83 | /* These ones take globs */ | |
17493fa5 | 84 | WRITE_FILE = 'w', |
df8dee85 | 85 | EMPTY_DIRECTORY = 'e', |
b705ab6a ZJS |
86 | SET_XATTR = 't', |
87 | RECURSIVE_SET_XATTR = 'T', | |
88 | SET_ACL = 'a', | |
89 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
90 | SET_ATTRIBUTE = 'h', |
91 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 92 | IGNORE_PATH = 'x', |
78a92a5a | 93 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 94 | REMOVE_PATH = 'r', |
a8d88783 | 95 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 96 | RELABEL_PATH = 'z', |
e73a03e0 | 97 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 98 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 99 | } ItemType; |
3b63d2d3 LP |
100 | |
101 | typedef struct Item { | |
66ccd038 | 102 | ItemType type; |
3b63d2d3 LP |
103 | |
104 | char *path; | |
468d726b | 105 | char *argument; |
ebf4e801 | 106 | char **xattrs; |
349cc4a5 | 107 | #if HAVE_ACL |
f8eeeaf9 ZJS |
108 | acl_t acl_access; |
109 | acl_t acl_default; | |
110 | #endif | |
5008d581 LP |
111 | uid_t uid; |
112 | gid_t gid; | |
3b63d2d3 LP |
113 | mode_t mode; |
114 | usec_t age; | |
115 | ||
468d726b | 116 | dev_t major_minor; |
88ec4dfa LP |
117 | unsigned attribute_value; |
118 | unsigned attribute_mask; | |
468d726b | 119 | |
3b63d2d3 LP |
120 | bool uid_set:1; |
121 | bool gid_set:1; | |
122 | bool mode_set:1; | |
123 | bool age_set:1; | |
abef3f91 | 124 | bool mask_perms:1; |
88ec4dfa | 125 | bool attribute_set:1; |
24f3a374 LP |
126 | |
127 | bool keep_first_level:1; | |
1910cd0e | 128 | |
2e78fa79 LP |
129 | bool force:1; |
130 | ||
1910cd0e | 131 | bool done:1; |
3b63d2d3 LP |
132 | } Item; |
133 | ||
3f93da98 ZJS |
134 | typedef struct ItemArray { |
135 | Item *items; | |
136 | size_t count; | |
137 | size_t size; | |
138 | } ItemArray; | |
139 | ||
5a8575ef ZJS |
140 | typedef enum DirectoryType { |
141 | DIRECTORY_RUNTIME = 0, | |
142 | DIRECTORY_STATE, | |
143 | DIRECTORY_CACHE, | |
144 | DIRECTORY_LOGS, | |
145 | _DIRECTORY_TYPE_MAX, | |
146 | } DirectoryType; | |
147 | ||
ceaaeb9b | 148 | static bool arg_cat_config = false; |
f2b5ca0e | 149 | static bool arg_user = false; |
3b63d2d3 LP |
150 | static bool arg_create = false; |
151 | static bool arg_clean = false; | |
152 | static bool arg_remove = false; | |
81815651 | 153 | static bool arg_boot = false; |
dcd5c891 | 154 | static bool arg_no_pager = false; |
3b63d2d3 | 155 | |
7bc040fa LP |
156 | static char **arg_include_prefixes = NULL; |
157 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 158 | static char *arg_root = NULL; |
a6d8474f | 159 | static char *arg_replace = NULL; |
fba6e687 | 160 | |
3b63d2d3 LP |
161 | #define MAX_DEPTH 256 |
162 | ||
ef43a391 | 163 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
164 | static Set *unix_sockets = NULL; |
165 | ||
4cef1923 | 166 | static int specifier_machine_id_safe(char specifier, void *data, void *userdata, char **ret); |
5a8575ef | 167 | static int specifier_directory(char specifier, void *data, void *userdata, char **ret); |
4cef1923 | 168 | |
bd550f78 | 169 | static const Specifier specifier_table[] = { |
4cef1923 | 170 | { 'm', specifier_machine_id_safe, NULL }, |
5a8575ef ZJS |
171 | { 'b', specifier_boot_id, NULL }, |
172 | { 'H', specifier_host_name, NULL }, | |
173 | { 'v', specifier_kernel_release, NULL }, | |
174 | ||
175 | { 'U', specifier_user_id, NULL }, | |
176 | { 'u', specifier_user_name, NULL }, | |
177 | { 'h', specifier_user_home, NULL }, | |
b294e594 | 178 | |
5a8575ef ZJS |
179 | { 't', specifier_directory, UINT_TO_PTR(DIRECTORY_RUNTIME) }, |
180 | { 'S', specifier_directory, UINT_TO_PTR(DIRECTORY_STATE) }, | |
181 | { 'C', specifier_directory, UINT_TO_PTR(DIRECTORY_CACHE) }, | |
182 | { 'L', specifier_directory, UINT_TO_PTR(DIRECTORY_LOGS) }, | |
b294e594 LP |
183 | { 'T', specifier_tmp_dir, NULL }, |
184 | { 'V', specifier_var_tmp_dir, NULL }, | |
bd550f78 LP |
185 | {} |
186 | }; | |
187 | ||
4cef1923 FB |
188 | static int specifier_machine_id_safe(char specifier, void *data, void *userdata, char **ret) { |
189 | int r; | |
190 | ||
d8dab757 FB |
191 | /* If /etc/machine_id is missing or empty (e.g. in a chroot environment) |
192 | * return a recognizable error so that the caller can skip the rule | |
4cef1923 FB |
193 | * gracefully. */ |
194 | ||
195 | r = specifier_machine_id(specifier, data, userdata, ret); | |
d8dab757 | 196 | if (IN_SET(r, -ENOENT, -ENOMEDIUM)) |
5a8575ef | 197 | return -ENXIO; |
4cef1923 FB |
198 | |
199 | return r; | |
200 | } | |
201 | ||
5a8575ef ZJS |
202 | static int specifier_directory(char specifier, void *data, void *userdata, char **ret) { |
203 | struct table_entry { | |
204 | uint64_t type; | |
205 | const char *suffix; | |
206 | }; | |
207 | ||
208 | static const struct table_entry paths_system[] = { | |
209 | [DIRECTORY_RUNTIME] = { SD_PATH_SYSTEM_RUNTIME }, | |
210 | [DIRECTORY_STATE] = { SD_PATH_SYSTEM_STATE_PRIVATE }, | |
211 | [DIRECTORY_CACHE] = { SD_PATH_SYSTEM_STATE_CACHE }, | |
212 | [DIRECTORY_LOGS] = { SD_PATH_SYSTEM_STATE_LOGS }, | |
213 | }; | |
214 | ||
215 | static const struct table_entry paths_user[] = { | |
216 | [DIRECTORY_RUNTIME] = { SD_PATH_USER_RUNTIME }, | |
217 | [DIRECTORY_STATE] = { SD_PATH_USER_CONFIGURATION }, | |
218 | [DIRECTORY_CACHE] = { SD_PATH_USER_STATE_CACHE }, | |
219 | [DIRECTORY_LOGS] = { SD_PATH_USER_CONFIGURATION, "log" }, | |
220 | }; | |
221 | ||
222 | unsigned i; | |
223 | const struct table_entry *paths; | |
224 | ||
225 | assert_cc(ELEMENTSOF(paths_system) == ELEMENTSOF(paths_user)); | |
226 | paths = arg_user ? paths_user : paths_system; | |
227 | ||
228 | i = PTR_TO_UINT(data); | |
229 | assert(i < ELEMENTSOF(paths_system)); | |
230 | ||
231 | return sd_path_home(paths[i].type, paths[i].suffix, ret); | |
232 | } | |
233 | ||
4cef1923 FB |
234 | static int log_unresolvable_specifier(const char *filename, unsigned line) { |
235 | static bool notified = false; | |
236 | ||
5a8575ef ZJS |
237 | /* In system mode, this is called when /etc is not fully initialized (e.g. |
238 | * in a chroot environment) where some specifiers are unresolvable. In user | |
239 | * mode, this is called when some variables are not defined. These cases are | |
240 | * not considered as an error so log at LOG_NOTICE only for the first time | |
241 | * and then downgrade this to LOG_DEBUG for the rest. */ | |
4cef1923 FB |
242 | |
243 | log_full(notified ? LOG_DEBUG : LOG_NOTICE, | |
5a8575ef ZJS |
244 | "[%s:%u] Failed to resolve specifier: %s, skipping", |
245 | filename, line, | |
246 | arg_user ? "Required $XDG_... variable not defined" : "uninitialized /etc detected"); | |
4cef1923 FB |
247 | |
248 | if (!notified) | |
249 | log_notice("All rules containing unresolvable specifiers will be skipped."); | |
250 | ||
251 | notified = true; | |
252 | return 0; | |
253 | } | |
254 | ||
f2b5ca0e ZJS |
255 | static int user_config_paths(char*** ret) { |
256 | _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL; | |
257 | _cleanup_free_ char *persistent_config = NULL, *runtime_config = NULL, *data_home = NULL; | |
258 | _cleanup_strv_free_ char **res = NULL; | |
259 | int r; | |
260 | ||
261 | r = xdg_user_dirs(&config_dirs, &data_dirs); | |
262 | if (r < 0) | |
263 | return r; | |
264 | ||
265 | r = xdg_user_config_dir(&persistent_config, "/user-tmpfiles.d"); | |
266 | if (r < 0 && r != -ENXIO) | |
267 | return r; | |
268 | ||
269 | r = xdg_user_runtime_dir(&runtime_config, "/user-tmpfiles.d"); | |
270 | if (r < 0 && r != -ENXIO) | |
271 | return r; | |
272 | ||
273 | r = xdg_user_data_dir(&data_home, "/user-tmpfiles.d"); | |
274 | if (r < 0 && r != -ENXIO) | |
275 | return r; | |
276 | ||
277 | r = strv_extend_strv_concat(&res, config_dirs, "/user-tmpfiles.d"); | |
278 | if (r < 0) | |
279 | return r; | |
280 | ||
281 | r = strv_extend(&res, persistent_config); | |
282 | if (r < 0) | |
283 | return r; | |
284 | ||
285 | r = strv_extend(&res, runtime_config); | |
286 | if (r < 0) | |
287 | return r; | |
288 | ||
289 | r = strv_extend(&res, data_home); | |
290 | if (r < 0) | |
291 | return r; | |
292 | ||
293 | r = strv_extend_strv_concat(&res, data_dirs, "/user-tmpfiles.d"); | |
294 | if (r < 0) | |
295 | return r; | |
296 | ||
297 | r = path_strv_make_absolute_cwd(res); | |
298 | if (r < 0) | |
299 | return r; | |
300 | ||
ae2a15bc | 301 | *ret = TAKE_PTR(res); |
f2b5ca0e ZJS |
302 | return 0; |
303 | } | |
304 | ||
66ccd038 | 305 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
306 | return IN_SET(t, |
307 | WRITE_FILE, | |
308 | IGNORE_PATH, | |
309 | IGNORE_DIRECTORY_PATH, | |
310 | REMOVE_PATH, | |
311 | RECURSIVE_REMOVE_PATH, | |
df8dee85 | 312 | EMPTY_DIRECTORY, |
e73a03e0 | 313 | ADJUST_MODE, |
cde684a2 | 314 | RELABEL_PATH, |
b705ab6a ZJS |
315 | RECURSIVE_RELABEL_PATH, |
316 | SET_XATTR, | |
317 | RECURSIVE_SET_XATTR, | |
318 | SET_ACL, | |
34f64536 LP |
319 | RECURSIVE_SET_ACL, |
320 | SET_ATTRIBUTE, | |
321 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
322 | } |
323 | ||
3f93da98 ZJS |
324 | static bool takes_ownership(ItemType t) { |
325 | return IN_SET(t, | |
326 | CREATE_FILE, | |
327 | TRUNCATE_FILE, | |
328 | CREATE_DIRECTORY, | |
df8dee85 | 329 | EMPTY_DIRECTORY, |
3f93da98 ZJS |
330 | TRUNCATE_DIRECTORY, |
331 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
332 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
333 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
334 | CREATE_FIFO, |
335 | CREATE_SYMLINK, | |
336 | CREATE_CHAR_DEVICE, | |
337 | CREATE_BLOCK_DEVICE, | |
338 | COPY_FILES, | |
3f93da98 ZJS |
339 | WRITE_FILE, |
340 | IGNORE_PATH, | |
341 | IGNORE_DIRECTORY_PATH, | |
342 | REMOVE_PATH, | |
343 | RECURSIVE_REMOVE_PATH); | |
344 | } | |
345 | ||
ef43a391 | 346 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 347 | ItemArray *j; |
b8bb3e8f LP |
348 | Iterator i; |
349 | ||
ef43a391 | 350 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
351 | unsigned n; |
352 | ||
353 | for (n = 0; n < j->count; n++) { | |
354 | Item *item = j->items + n; | |
355 | ||
356 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
357 | return item; | |
358 | } | |
359 | } | |
b8bb3e8f LP |
360 | |
361 | return NULL; | |
362 | } | |
363 | ||
17b90525 | 364 | static void load_unix_sockets(void) { |
7fd1b19b | 365 | _cleanup_fclose_ FILE *f = NULL; |
f1ff734f | 366 | int r; |
17b90525 LP |
367 | |
368 | if (unix_sockets) | |
369 | return; | |
370 | ||
f1ff734f | 371 | /* We maintain a cache of the sockets we found in /proc/net/unix to speed things up a little. */ |
17b90525 | 372 | |
548f6937 LP |
373 | unix_sockets = set_new(&path_hash_ops); |
374 | if (!unix_sockets) { | |
375 | log_oom(); | |
17b90525 | 376 | return; |
548f6937 | 377 | } |
17b90525 | 378 | |
fdcad0c2 | 379 | f = fopen("/proc/net/unix", "re"); |
f1ff734f LP |
380 | if (!f) { |
381 | log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, errno, | |
382 | "Failed to open /proc/net/unix, ignoring: %m"); | |
383 | goto fail; | |
384 | } | |
17b90525 | 385 | |
fdcad0c2 | 386 | /* Skip header */ |
f1ff734f LP |
387 | r = read_line(f, LONG_LINE_MAX, NULL); |
388 | if (r < 0) { | |
389 | log_warning_errno(r, "Failed to skip /proc/net/unix header line: %m"); | |
390 | goto fail; | |
391 | } | |
392 | if (r == 0) { | |
393 | log_warning("Premature end of file reading /proc/net/unix."); | |
17b90525 | 394 | goto fail; |
f1ff734f | 395 | } |
17b90525 LP |
396 | |
397 | for (;;) { | |
f1ff734f | 398 | _cleanup_free_ char *line = NULL; |
17b90525 | 399 | char *p, *s; |
17b90525 | 400 | |
f1ff734f LP |
401 | r = read_line(f, LONG_LINE_MAX, &line); |
402 | if (r < 0) { | |
403 | log_warning_errno(r, "Failed to read /proc/net/unix line, ignoring: %m"); | |
404 | goto fail; | |
405 | } | |
406 | if (r == 0) /* EOF */ | |
17b90525 LP |
407 | break; |
408 | ||
fdcad0c2 LP |
409 | p = strchr(line, ':'); |
410 | if (!p) | |
411 | continue; | |
412 | ||
413 | if (strlen(p) < 37) | |
17b90525 LP |
414 | continue; |
415 | ||
fdcad0c2 | 416 | p += 37; |
17b90525 | 417 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 418 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
419 | p += strspn(p, WHITESPACE); |
420 | ||
421 | if (*p != '/') | |
422 | continue; | |
423 | ||
fdcad0c2 | 424 | s = strdup(p); |
f1ff734f LP |
425 | if (!s) { |
426 | log_oom(); | |
17b90525 | 427 | goto fail; |
f1ff734f | 428 | } |
17b90525 | 429 | |
858d36c1 | 430 | path_simplify(s, false); |
4ff21d85 | 431 | |
f1ff734f LP |
432 | r = set_consume(unix_sockets, s); |
433 | if (r < 0 && r != -EEXIST) { | |
434 | log_warning_errno(r, "Failed to add AF_UNIX socket to set, ignoring: %m"); | |
ef42202a | 435 | goto fail; |
f1ff734f | 436 | } |
17b90525 LP |
437 | } |
438 | ||
439 | return; | |
440 | ||
441 | fail: | |
f1ff734f | 442 | unix_sockets = set_free_free(unix_sockets); |
17b90525 LP |
443 | } |
444 | ||
445 | static bool unix_socket_alive(const char *fn) { | |
446 | assert(fn); | |
447 | ||
448 | load_unix_sockets(); | |
449 | ||
450 | if (unix_sockets) | |
451 | return !!set_get(unix_sockets, (char*) fn); | |
452 | ||
453 | /* We don't know, so assume yes */ | |
454 | return true; | |
455 | } | |
456 | ||
99d680ac | 457 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 458 | |
99d680ac KS |
459 | int mount_id_parent, mount_id; |
460 | int r_p, r; | |
461 | ||
cbfb8679 | 462 | r_p = name_to_handle_at_loop(dirfd(d), ".", NULL, &mount_id_parent, 0); |
99d680ac KS |
463 | if (r_p < 0) |
464 | r_p = -errno; | |
465 | ||
cbfb8679 | 466 | r = name_to_handle_at_loop(dirfd(d), subdir, NULL, &mount_id, 0); |
99d680ac KS |
467 | if (r < 0) |
468 | r = -errno; | |
469 | ||
470 | /* got no handle; make no assumptions, return error */ | |
471 | if (r_p < 0 && r < 0) | |
472 | return r_p; | |
473 | ||
474 | /* got both handles; if they differ, it is a mount point */ | |
475 | if (r_p >= 0 && r >= 0) | |
476 | return mount_id_parent != mount_id; | |
477 | ||
478 | /* got only one handle; assume different mount points if one | |
479 | * of both queries was not supported by the filesystem */ | |
4c701096 | 480 | if (IN_SET(r_p, -ENOSYS, -EOPNOTSUPP) || IN_SET(r, -ENOSYS, -EOPNOTSUPP)) |
99d680ac KS |
481 | return true; |
482 | ||
483 | /* return error */ | |
484 | if (r_p < 0) | |
485 | return r_p; | |
486 | return r; | |
487 | } | |
488 | ||
df99a9ef ZJS |
489 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
490 | DIR *dir; | |
491 | ||
492 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
493 | if (dir) |
494 | return dir; | |
495 | ||
496 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
497 | if (errno != EPERM) | |
498 | return NULL; | |
499 | ||
500 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
501 | if (!dir) | |
502 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
503 | |
504 | return dir; | |
505 | } | |
506 | ||
507 | static DIR* opendir_nomod(const char *path) { | |
508 | return xopendirat_nomod(AT_FDCWD, path); | |
509 | } | |
510 | ||
3b63d2d3 | 511 | static int dir_cleanup( |
78a92a5a | 512 | Item *i, |
3b63d2d3 LP |
513 | const char *p, |
514 | DIR *d, | |
515 | const struct stat *ds, | |
516 | usec_t cutoff, | |
517 | dev_t rootdev, | |
518 | bool mountpoint, | |
24f3a374 | 519 | int maxdepth, |
265ffa1e LP |
520 | bool keep_this_level) { |
521 | ||
3b63d2d3 LP |
522 | struct dirent *dent; |
523 | struct timespec times[2]; | |
524 | bool deleted = false; | |
3b63d2d3 LP |
525 | int r = 0; |
526 | ||
8fb3f009 | 527 | FOREACH_DIRENT_ALL(dent, d, break) { |
3b63d2d3 LP |
528 | struct stat s; |
529 | usec_t age; | |
7fd1b19b | 530 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 531 | |
49bfc877 | 532 | if (dot_or_dot_dot(dent->d_name)) |
3b63d2d3 | 533 | continue; |
5008d581 | 534 | |
3b63d2d3 | 535 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
536 | if (errno == ENOENT) |
537 | continue; | |
5008d581 | 538 | |
ca2f4176 | 539 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
ecc1709c LP |
540 | r = log_full_errno(errno == EACCES ? LOG_DEBUG : LOG_ERR, errno, |
541 | "stat(%s/%s) failed: %m", p, dent->d_name); | |
3b63d2d3 LP |
542 | continue; |
543 | } | |
544 | ||
545 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
546 | if (s.st_dev != rootdev) { |
547 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 548 | continue; |
582deb84 | 549 | } |
3b63d2d3 | 550 | |
99d680ac KS |
551 | /* Try to detect bind mounts of the same filesystem instance; they |
552 | * do not differ in device major/minors. This type of query is not | |
553 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
554 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
555 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
556 | p, dent->d_name); | |
99d680ac | 557 | continue; |
582deb84 | 558 | } |
99d680ac | 559 | |
605405c6 | 560 | sub_path = strjoin(p, "/", dent->d_name); |
cde684a2 | 561 | if (!sub_path) { |
0d0f0c50 | 562 | r = log_oom(); |
3b63d2d3 LP |
563 | goto finish; |
564 | } | |
565 | ||
566 | /* Is there an item configured for this path? */ | |
ef43a391 | 567 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 568 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 569 | continue; |
582deb84 | 570 | } |
3b63d2d3 | 571 | |
582deb84 ZJS |
572 | if (find_glob(globs, sub_path)) { |
573 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 574 | continue; |
582deb84 | 575 | } |
b8bb3e8f | 576 | |
3b63d2d3 LP |
577 | if (S_ISDIR(s.st_mode)) { |
578 | ||
579 | if (mountpoint && | |
580 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
581 | s.st_uid == 0) { |
582 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 583 | continue; |
582deb84 | 584 | } |
3b63d2d3 LP |
585 | |
586 | if (maxdepth <= 0) | |
582deb84 | 587 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 588 | else { |
7fd1b19b | 589 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
590 | int q; |
591 | ||
df99a9ef | 592 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 593 | if (!sub_dir) { |
582deb84 ZJS |
594 | if (errno != ENOENT) |
595 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
596 | |
597 | continue; | |
598 | } | |
599 | ||
78a92a5a | 600 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
601 | if (q < 0) |
602 | r = q; | |
603 | } | |
604 | ||
24f3a374 LP |
605 | /* Note: if you are wondering why we don't |
606 | * support the sticky bit for excluding | |
607 | * directories from cleaning like we do it for | |
608 | * other file system objects: well, the sticky | |
609 | * bit already has a meaning for directories, | |
610 | * so we don't want to overload that. */ | |
611 | ||
582deb84 ZJS |
612 | if (keep_this_level) { |
613 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 614 | continue; |
582deb84 | 615 | } |
24f3a374 | 616 | |
3b63d2d3 | 617 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
618 | age = timespec_load(&s.st_mtim); |
619 | if (age >= cutoff) { | |
620 | char a[FORMAT_TIMESTAMP_MAX]; | |
621 | /* Follows spelling in stat(1). */ | |
622 | log_debug("Directory \"%s\": modify time %s is too new.", | |
623 | sub_path, | |
624 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 625 | continue; |
582deb84 ZJS |
626 | } |
627 | ||
628 | age = timespec_load(&s.st_atim); | |
629 | if (age >= cutoff) { | |
630 | char a[FORMAT_TIMESTAMP_MAX]; | |
631 | log_debug("Directory \"%s\": access time %s is too new.", | |
632 | sub_path, | |
633 | format_timestamp_us(a, sizeof(a), age)); | |
634 | continue; | |
635 | } | |
3b63d2d3 | 636 | |
61253220 ZJS |
637 | log_debug("Removing directory \"%s\".", sub_path); |
638 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
920ce828 LP |
639 | if (!IN_SET(errno, ENOENT, ENOTEMPTY)) |
640 | r = log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
3b63d2d3 LP |
641 | |
642 | } else { | |
9c73736d LP |
643 | /* Skip files for which the sticky bit is |
644 | * set. These are semantics we define, and are | |
645 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
646 | * specification for details. */ | |
582deb84 ZJS |
647 | if (s.st_mode & S_ISVTX) { |
648 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 649 | continue; |
582deb84 | 650 | } |
9c73736d | 651 | |
582deb84 | 652 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
653 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
654 | ".journal", | |
655 | "aquota.user", | |
656 | "aquota.group")) { | |
582deb84 | 657 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 658 | continue; |
582deb84 | 659 | } |
3b63d2d3 | 660 | |
17b90525 | 661 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
662 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
663 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 664 | continue; |
582deb84 | 665 | } |
17b90525 | 666 | |
78ab08eb | 667 | /* Ignore device nodes */ |
582deb84 ZJS |
668 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
669 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 670 | continue; |
582deb84 | 671 | } |
78ab08eb | 672 | |
24f3a374 LP |
673 | /* Keep files on this level around if this is |
674 | * requested */ | |
582deb84 ZJS |
675 | if (keep_this_level) { |
676 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 677 | continue; |
582deb84 | 678 | } |
24f3a374 | 679 | |
582deb84 ZJS |
680 | age = timespec_load(&s.st_mtim); |
681 | if (age >= cutoff) { | |
682 | char a[FORMAT_TIMESTAMP_MAX]; | |
683 | /* Follows spelling in stat(1). */ | |
684 | log_debug("File \"%s\": modify time %s is too new.", | |
685 | sub_path, | |
686 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 687 | continue; |
582deb84 | 688 | } |
3b63d2d3 | 689 | |
582deb84 ZJS |
690 | age = timespec_load(&s.st_atim); |
691 | if (age >= cutoff) { | |
692 | char a[FORMAT_TIMESTAMP_MAX]; | |
693 | log_debug("File \"%s\": access time %s is too new.", | |
694 | sub_path, | |
695 | format_timestamp_us(a, sizeof(a), age)); | |
696 | continue; | |
697 | } | |
3b63d2d3 | 698 | |
582deb84 ZJS |
699 | age = timespec_load(&s.st_ctim); |
700 | if (age >= cutoff) { | |
701 | char a[FORMAT_TIMESTAMP_MAX]; | |
702 | log_debug("File \"%s\": change time %s is too new.", | |
703 | sub_path, | |
704 | format_timestamp_us(a, sizeof(a), age)); | |
705 | continue; | |
3b63d2d3 LP |
706 | } |
707 | ||
582deb84 ZJS |
708 | log_debug("unlink \"%s\"", sub_path); |
709 | ||
710 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
711 | if (errno != ENOENT) | |
712 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
713 | ||
3b63d2d3 LP |
714 | deleted = true; |
715 | } | |
716 | } | |
717 | ||
718 | finish: | |
719 | if (deleted) { | |
582deb84 ZJS |
720 | usec_t age1, age2; |
721 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
722 | ||
3b63d2d3 LP |
723 | /* Restore original directory timestamps */ |
724 | times[0] = ds->st_atim; | |
725 | times[1] = ds->st_mtim; | |
726 | ||
582deb84 ZJS |
727 | age1 = timespec_load(&ds->st_atim); |
728 | age2 = timespec_load(&ds->st_mtim); | |
729 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
730 | p, | |
731 | format_timestamp_us(a, sizeof(a), age1), | |
732 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 733 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 734 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
735 | } |
736 | ||
3b63d2d3 LP |
737 | return r; |
738 | } | |
739 | ||
5579f856 LP |
740 | static bool dangerous_hardlinks(void) { |
741 | _cleanup_free_ char *value = NULL; | |
742 | static int cached = -1; | |
743 | int r; | |
744 | ||
745 | /* Check whether the fs.protected_hardlinks sysctl is on. If we can't determine it we assume its off, as that's | |
746 | * what the upstream default is. */ | |
747 | ||
748 | if (cached >= 0) | |
749 | return cached; | |
750 | ||
751 | r = read_one_line_file("/proc/sys/fs/protected_hardlinks", &value); | |
752 | if (r < 0) { | |
753 | log_debug_errno(r, "Failed to read fs.protected_hardlinks sysctl: %m"); | |
754 | return true; | |
755 | } | |
756 | ||
757 | r = parse_boolean(value); | |
758 | if (r < 0) { | |
759 | log_debug_errno(r, "Failed to parse fs.protected_hardlinks sysctl: %m"); | |
760 | return true; | |
761 | } | |
762 | ||
763 | cached = r == 0; | |
764 | return cached; | |
765 | } | |
766 | ||
774f79b5 | 767 | static bool hardlink_vulnerable(const struct stat *st) { |
5579f856 LP |
768 | assert(st); |
769 | ||
770 | return !S_ISDIR(st->st_mode) && st->st_nlink > 1 && dangerous_hardlinks(); | |
771 | } | |
772 | ||
936f6bdb FB |
773 | static int fd_set_perms(Item *i, int fd, const struct stat *st) { |
774 | _cleanup_free_ char *path = NULL; | |
b206ac8e | 775 | struct stat stbuf; |
936f6bdb | 776 | int r; |
1924a97d | 777 | |
cde684a2 | 778 | assert(i); |
936f6bdb | 779 | assert(fd); |
780e2ee1 | 780 | |
936f6bdb FB |
781 | r = fd_get_path(fd, &path); |
782 | if (r < 0) | |
780e2ee1 | 783 | return r; |
48b8aaa8 | 784 | |
936f6bdb FB |
785 | if (!i->mode_set && !i->uid_set && !i->gid_set) |
786 | goto shortcut; | |
1924a97d | 787 | |
b206ac8e FB |
788 | if (!st) { |
789 | if (fstat(fd, &stbuf) < 0) | |
790 | return log_error_errno(errno, "fstat(%s) failed: %m", path); | |
791 | st = &stbuf; | |
792 | } | |
793 | ||
936f6bdb | 794 | if (hardlink_vulnerable(st)) { |
5579f856 LP |
795 | log_error("Refusing to set permissions on hardlinked file %s while the fs.protected_hardlinks sysctl is turned off.", path); |
796 | return -EPERM; | |
797 | } | |
798 | ||
51207ca1 | 799 | if (i->mode_set) { |
936f6bdb | 800 | if (S_ISLNK(st->st_mode)) |
51207ca1 LP |
801 | log_debug("Skipping mode fix for symlink %s.", path); |
802 | else { | |
48b8aaa8 LP |
803 | mode_t m = i->mode; |
804 | ||
805 | if (i->mask_perms) { | |
936f6bdb | 806 | if (!(st->st_mode & 0111)) |
48b8aaa8 | 807 | m &= ~0111; |
936f6bdb | 808 | if (!(st->st_mode & 0222)) |
7d6884b6 | 809 | m &= ~0222; |
936f6bdb | 810 | if (!(st->st_mode & 0444)) |
48b8aaa8 | 811 | m &= ~0444; |
936f6bdb | 812 | if (!S_ISDIR(st->st_mode)) |
48b8aaa8 LP |
813 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ |
814 | } | |
abef3f91 | 815 | |
936f6bdb FB |
816 | if (m == (st->st_mode & 07777)) |
817 | log_debug("\"%s\" has correct mode %o already.", path, st->st_mode); | |
48b8aaa8 | 818 | else { |
51207ca1 | 819 | log_debug("Changing \"%s\" to mode %o.", path, m); |
4dfaa528 FB |
820 | if (fchmod_opath(fd, m) < 0) |
821 | return log_error_errno(errno, "fchmod() of %s failed: %m", path); | |
48b8aaa8 | 822 | } |
062e01bb | 823 | } |
51207ca1 | 824 | } |
062e01bb | 825 | |
936f6bdb FB |
826 | if ((i->uid_set && i->uid != st->st_uid) || |
827 | (i->gid_set && i->gid != st->st_gid)) { | |
51207ca1 LP |
828 | log_debug("Changing \"%s\" to owner "UID_FMT":"GID_FMT, |
829 | path, | |
830 | i->uid_set ? i->uid : UID_INVALID, | |
831 | i->gid_set ? i->gid : GID_INVALID); | |
832 | ||
936f6bdb FB |
833 | if (fchownat(fd, |
834 | "", | |
835 | i->uid_set ? i->uid : UID_INVALID, | |
836 | i->gid_set ? i->gid : GID_INVALID, | |
837 | AT_EMPTY_PATH) < 0) | |
838 | return log_error_errno(errno, "fchownat() of %s failed: %m", path); | |
582deb84 | 839 | } |
062e01bb | 840 | |
59793c8f | 841 | shortcut: |
08c84981 | 842 | return label_fix(path, 0); |
062e01bb MS |
843 | } |
844 | ||
5ec9d065 FB |
845 | static int path_open_parent_safe(const char *path) { |
846 | _cleanup_free_ char *dn = NULL; | |
847 | int fd; | |
848 | ||
849 | if (path_equal(path, "/") || !path_is_normalized(path)) { | |
850 | log_error("Failed to open parent of '%s': invalid path.", path); | |
851 | return -EINVAL; | |
852 | } | |
853 | ||
854 | dn = dirname_malloc(path); | |
855 | if (!dn) | |
856 | return log_oom(); | |
857 | ||
858 | fd = chase_symlinks(dn, NULL, CHASE_OPEN|CHASE_SAFE, NULL); | |
859 | if (fd == -EPERM) | |
860 | return log_error_errno(fd, "Unsafe symlinks encountered in %s, refusing.", path); | |
861 | if (fd < 0) | |
862 | return log_error_errno(fd, "Failed to validate path %s: %m", path); | |
863 | ||
864 | return fd; | |
865 | } | |
866 | ||
936f6bdb FB |
867 | static int path_set_perms(Item *i, const char *path) { |
868 | _cleanup_close_ int fd = -1; | |
b206ac8e | 869 | struct stat stbuf, *st = NULL; |
936f6bdb FB |
870 | |
871 | assert(i); | |
872 | assert(path); | |
873 | ||
874 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
875 | if (fd < 0) { | |
876 | int level = LOG_ERR, r = -errno; | |
877 | ||
878 | /* Option "e" operates only on existing objects. Do not | |
879 | * print errors about non-existent files or directories */ | |
880 | if (i->type == EMPTY_DIRECTORY && errno == ENOENT) { | |
881 | level = LOG_DEBUG; | |
882 | r = 0; | |
883 | } | |
884 | ||
885 | log_full_errno(level, errno, "Adjusting owner and mode for %s failed: %m", path); | |
886 | return r; | |
887 | } | |
888 | ||
b206ac8e FB |
889 | if (i->type == EMPTY_DIRECTORY) { |
890 | /* FIXME: introduce fd_is_dir() helper ? */ | |
891 | if (fstat(fd, &stbuf) < 0) | |
892 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
893 | ||
894 | if (!S_ISDIR(stbuf.st_mode)) { | |
895 | log_error("'%s' already exists and is not a directory. ", path); | |
896 | return -EEXIST; | |
897 | } | |
936f6bdb | 898 | |
b206ac8e FB |
899 | st = &stbuf; |
900 | } | |
d460ba18 | 901 | |
b206ac8e | 902 | return fd_set_perms(i, fd, st); |
936f6bdb FB |
903 | } |
904 | ||
bd550f78 | 905 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
906 | const char *p; |
907 | int r; | |
908 | ||
909 | assert(i); | |
505ef0e3 | 910 | assert(i->argument); |
ebf4e801 | 911 | |
ebf4e801 MW |
912 | p = i->argument; |
913 | ||
4034a06d | 914 | for (;;) { |
4cef1923 | 915 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL; |
4034a06d | 916 | |
12ba2c44 | 917 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 918 | if (r < 0) |
bd550f78 | 919 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
920 | if (r <= 0) |
921 | break; | |
505ef0e3 | 922 | |
4cef1923 | 923 | r = split_pair(xattr, "=", &name, &value); |
ebf4e801 | 924 | if (r < 0) { |
4034a06d | 925 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
926 | continue; |
927 | } | |
505ef0e3 | 928 | |
4034a06d | 929 | if (isempty(name) || isempty(value)) { |
bd550f78 | 930 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
931 | continue; |
932 | } | |
505ef0e3 | 933 | |
4034a06d | 934 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 935 | return log_oom(); |
505ef0e3 | 936 | |
4034a06d | 937 | name = value = NULL; |
ebf4e801 MW |
938 | } |
939 | ||
4034a06d | 940 | return 0; |
ebf4e801 MW |
941 | } |
942 | ||
936f6bdb | 943 | static int fd_set_xattrs(Item *i, int fd, const struct stat *st) { |
34d26777 | 944 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
936f6bdb | 945 | _cleanup_free_ char *path = NULL; |
ebf4e801 | 946 | char **name, **value; |
936f6bdb | 947 | int r; |
ebf4e801 MW |
948 | |
949 | assert(i); | |
936f6bdb FB |
950 | assert(fd); |
951 | ||
952 | r = fd_get_path(fd, &path); | |
953 | if (r < 0) | |
954 | return r; | |
955 | ||
956 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); | |
ebf4e801 | 957 | |
ebf4e801 | 958 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
bd550f78 | 959 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
936f6bdb | 960 | if (setxattr(procfs_path, *name, *value, strlen(*value), 0) < 0) |
25f027c5 ZJS |
961 | return log_error_errno(errno, "Setting extended attribute %s=%s on %s failed: %m", |
962 | *name, *value, path); | |
ebf4e801 MW |
963 | } |
964 | return 0; | |
965 | } | |
966 | ||
936f6bdb FB |
967 | static int path_set_xattrs(Item *i, const char *path) { |
968 | _cleanup_close_ int fd = -1; | |
969 | ||
970 | assert(i); | |
971 | assert(path); | |
972 | ||
973 | fd = open(path, O_CLOEXEC|O_NOFOLLOW|O_PATH); | |
974 | if (fd < 0) | |
975 | return log_error_errno(errno, "Cannot open '%s': %m", path); | |
976 | ||
977 | return fd_set_xattrs(i, fd, NULL); | |
978 | } | |
979 | ||
bd550f78 | 980 | static int parse_acls_from_arg(Item *item) { |
349cc4a5 | 981 | #if HAVE_ACL |
f8eeeaf9 | 982 | int r; |
f8eeeaf9 ZJS |
983 | |
984 | assert(item); | |
985 | ||
50d9e46d ZJS |
986 | /* If force (= modify) is set, we will not modify the acl |
987 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 988 | |
50d9e46d | 989 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 990 | if (r < 0) |
4034a06d | 991 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
992 | #else |
993 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
994 | #endif | |
995 | ||
996 | return 0; | |
997 | } | |
998 | ||
349cc4a5 | 999 | #if HAVE_ACL |
48b8aaa8 LP |
1000 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
1001 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 1002 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
1003 | int r; |
1004 | ||
d873e877 HPD |
1005 | /* Returns 0 for success, positive error if already warned, |
1006 | * negative error otherwise. */ | |
1007 | ||
50d9e46d | 1008 | if (modify) { |
dd4105b0 | 1009 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
1010 | if (r < 0) |
1011 | return r; | |
50d9e46d | 1012 | |
dd4105b0 ZJS |
1013 | r = calc_acl_mask_if_needed(&dup); |
1014 | if (r < 0) | |
1015 | return r; | |
1016 | } else { | |
1017 | dup = acl_dup(acl); | |
1018 | if (!dup) | |
1019 | return -errno; | |
1020 | ||
1021 | /* the mask was already added earlier if needed */ | |
1022 | } | |
1023 | ||
1024 | r = add_base_acls_if_needed(&dup, path); | |
1025 | if (r < 0) | |
1026 | return r; | |
1027 | ||
582deb84 | 1028 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 1029 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 1030 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 1031 | strna(t), pretty); |
50d9e46d | 1032 | |
582deb84 ZJS |
1033 | r = acl_set_file(path, type, dup); |
1034 | if (r < 0) | |
3ea40b78 LP |
1035 | /* Return positive to indicate we already warned */ |
1036 | return -log_error_errno(errno, | |
1037 | "Setting %s ACL \"%s\" on %s failed: %m", | |
1038 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 1039 | strna(t), pretty); |
d873e877 | 1040 | |
582deb84 | 1041 | return 0; |
50d9e46d | 1042 | } |
35888b67 | 1043 | #endif |
50d9e46d | 1044 | |
936f6bdb | 1045 | static int fd_set_acls(Item *item, int fd, const struct stat *st) { |
d873e877 | 1046 | int r = 0; |
349cc4a5 | 1047 | #if HAVE_ACL |
34d26777 | 1048 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
936f6bdb | 1049 | _cleanup_free_ char *path = NULL; |
b206ac8e | 1050 | struct stat stbuf; |
48b8aaa8 | 1051 | |
f8eeeaf9 | 1052 | assert(item); |
936f6bdb | 1053 | assert(fd); |
48b8aaa8 | 1054 | |
936f6bdb FB |
1055 | r = fd_get_path(fd, &path); |
1056 | if (r < 0) | |
1057 | return r; | |
48b8aaa8 | 1058 | |
b206ac8e FB |
1059 | if (!st) { |
1060 | if (fstat(fd, &stbuf) < 0) | |
1061 | return log_error_errno(errno, "fstat(%s) failed: %m", path); | |
1062 | st = &stbuf; | |
1063 | } | |
1064 | ||
936f6bdb | 1065 | if (hardlink_vulnerable(st)) { |
5579f856 LP |
1066 | log_error("Refusing to set ACLs on hardlinked file %s while the fs.protected_hardlinks sysctl is turned off.", path); |
1067 | return -EPERM; | |
1068 | } | |
1069 | ||
936f6bdb | 1070 | if (S_ISLNK(st->st_mode)) { |
48b8aaa8 LP |
1071 | log_debug("Skipping ACL fix for symlink %s.", path); |
1072 | return 0; | |
1073 | } | |
1074 | ||
936f6bdb | 1075 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); |
48b8aaa8 | 1076 | |
d873e877 | 1077 | if (item->acl_access) |
936f6bdb | 1078 | r = path_set_acl(procfs_path, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 1079 | |
2667385b RM |
1080 | /* set only default acls to folders */ |
1081 | if (r == 0 && item->acl_default && S_ISDIR(st->st_mode)) | |
936f6bdb | 1082 | r = path_set_acl(procfs_path, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 1083 | |
d873e877 HPD |
1084 | if (r > 0) |
1085 | return -r; /* already warned */ | |
936f6bdb | 1086 | if (r == -EOPNOTSUPP) { |
d873e877 HPD |
1087 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
1088 | return 0; | |
936f6bdb FB |
1089 | } |
1090 | if (r < 0) | |
1091 | return log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
d873e877 HPD |
1092 | #endif |
1093 | return r; | |
f8eeeaf9 ZJS |
1094 | } |
1095 | ||
936f6bdb FB |
1096 | static int path_set_acls(Item *item, const char *path) { |
1097 | int r = 0; | |
545cdb90 | 1098 | #if HAVE_ACL |
936f6bdb | 1099 | _cleanup_close_ int fd = -1; |
936f6bdb FB |
1100 | |
1101 | assert(item); | |
1102 | assert(path); | |
1103 | ||
1104 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
1105 | if (fd < 0) | |
1106 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
1107 | ||
b206ac8e | 1108 | r = fd_set_acls(item, fd, NULL); |
545cdb90 YW |
1109 | #endif |
1110 | return r; | |
1111 | } | |
936f6bdb | 1112 | |
88ec4dfa LP |
1113 | #define ATTRIBUTES_ALL \ |
1114 | (FS_NOATIME_FL | \ | |
1115 | FS_SYNC_FL | \ | |
1116 | FS_DIRSYNC_FL | \ | |
1117 | FS_APPEND_FL | \ | |
1118 | FS_COMPR_FL | \ | |
1119 | FS_NODUMP_FL | \ | |
1120 | FS_EXTENT_FL | \ | |
1121 | FS_IMMUTABLE_FL | \ | |
1122 | FS_JOURNAL_DATA_FL | \ | |
1123 | FS_SECRM_FL | \ | |
1124 | FS_UNRM_FL | \ | |
1125 | FS_NOTAIL_FL | \ | |
1126 | FS_TOPDIR_FL | \ | |
1127 | FS_NOCOW_FL) | |
1128 | ||
bd550f78 | 1129 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
1130 | |
1131 | static const struct { | |
1132 | char character; | |
1133 | unsigned value; | |
1134 | } attributes[] = { | |
1135 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
1136 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
1137 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
1138 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
1139 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
1140 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
8c35b2ca | 1141 | { 'e', FS_EXTENT_FL }, /* Extents */ |
88ec4dfa LP |
1142 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ |
1143 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
1144 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
1145 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
1146 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
13e785f7 | 1147 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies */ |
88ec4dfa | 1148 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ |
22c3a6ca | 1149 | }; |
88ec4dfa | 1150 | |
22c3a6ca GB |
1151 | enum { |
1152 | MODE_ADD, | |
1153 | MODE_DEL, | |
1154 | MODE_SET | |
1155 | } mode = MODE_ADD; | |
22c3a6ca | 1156 | |
88ec4dfa LP |
1157 | unsigned value = 0, mask = 0; |
1158 | const char *p; | |
22c3a6ca | 1159 | |
88ec4dfa LP |
1160 | assert(item); |
1161 | ||
1162 | p = item->argument; | |
1163 | if (p) { | |
1164 | if (*p == '+') { | |
1165 | mode = MODE_ADD; | |
1166 | p++; | |
1167 | } else if (*p == '-') { | |
1168 | mode = MODE_DEL; | |
1169 | p++; | |
1170 | } else if (*p == '=') { | |
1171 | mode = MODE_SET; | |
1172 | p++; | |
1173 | } | |
22c3a6ca GB |
1174 | } |
1175 | ||
88ec4dfa LP |
1176 | if (isempty(p) && mode != MODE_SET) { |
1177 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
1178 | return -EINVAL; |
1179 | } | |
88ec4dfa LP |
1180 | |
1181 | for (; p && *p ; p++) { | |
1182 | unsigned i, v; | |
1183 | ||
1184 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
1185 | if (*p == attributes[i].character) | |
1186 | break; | |
1187 | ||
1188 | if (i >= ELEMENTSOF(attributes)) { | |
1189 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
1190 | return -EINVAL; |
1191 | } | |
88ec4dfa LP |
1192 | |
1193 | v = attributes[i].value; | |
1194 | ||
3742095b | 1195 | SET_FLAG(value, v, IN_SET(mode, MODE_ADD, MODE_SET)); |
88ec4dfa LP |
1196 | |
1197 | mask |= v; | |
22c3a6ca GB |
1198 | } |
1199 | ||
1200 | if (mode == MODE_SET) | |
88ec4dfa | 1201 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 1202 | |
88ec4dfa | 1203 | assert(mask != 0); |
22c3a6ca | 1204 | |
88ec4dfa LP |
1205 | item->attribute_mask = mask; |
1206 | item->attribute_value = value; | |
1207 | item->attribute_set = true; | |
22c3a6ca GB |
1208 | |
1209 | return 0; | |
22c3a6ca GB |
1210 | } |
1211 | ||
936f6bdb | 1212 | static int fd_set_attribute(Item *item, int fd, const struct stat *st) { |
936f6bdb FB |
1213 | _cleanup_close_ int procfs_fd = -1; |
1214 | _cleanup_free_ char *path = NULL; | |
b206ac8e | 1215 | struct stat stbuf; |
88ec4dfa LP |
1216 | unsigned f; |
1217 | int r; | |
22c3a6ca | 1218 | |
88ec4dfa | 1219 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 1220 | return 0; |
22c3a6ca | 1221 | |
936f6bdb FB |
1222 | r = fd_get_path(fd, &path); |
1223 | if (r < 0) | |
1224 | return r; | |
88ec4dfa | 1225 | |
b206ac8e FB |
1226 | if (!st) { |
1227 | if (fstat(fd, &stbuf) < 0) | |
1228 | return log_error_errno(errno, "fstat(%s) failed: %m", path); | |
1229 | st = &stbuf; | |
1230 | } | |
1231 | ||
88ec4dfa LP |
1232 | /* Issuing the file attribute ioctls on device nodes is not |
1233 | * safe, as that will be delivered to the drivers, not the | |
1234 | * file system containing the device node. */ | |
936f6bdb | 1235 | if (!S_ISREG(st->st_mode) && !S_ISDIR(st->st_mode)) { |
88ec4dfa LP |
1236 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); |
1237 | return -EINVAL; | |
1238 | } | |
1239 | ||
1240 | f = item->attribute_value & item->attribute_mask; | |
1241 | ||
1242 | /* Mask away directory-specific flags */ | |
936f6bdb | 1243 | if (!S_ISDIR(st->st_mode)) |
22c3a6ca | 1244 | f &= ~FS_DIRSYNC_FL; |
88ec4dfa | 1245 | |
f2324783 | 1246 | procfs_fd = fd_reopen(fd, O_RDONLY|O_CLOEXEC|O_NOATIME); |
936f6bdb FB |
1247 | if (procfs_fd < 0) |
1248 | return -errno; | |
1249 | ||
1250 | r = chattr_fd(procfs_fd, f, item->attribute_mask); | |
22c3a6ca | 1251 | if (r < 0) |
4c701096 | 1252 | log_full_errno(IN_SET(r, -ENOTTY, -EOPNOTSUPP) ? LOG_DEBUG : LOG_WARNING, |
ad75a97f LP |
1253 | r, |
1254 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
1255 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
1256 | |
1257 | return 0; | |
1258 | } | |
1259 | ||
936f6bdb FB |
1260 | static int path_set_attribute(Item *item, const char *path) { |
1261 | _cleanup_close_ int fd = -1; | |
936f6bdb FB |
1262 | |
1263 | if (!item->attribute_set || item->attribute_mask == 0) | |
1264 | return 0; | |
1265 | ||
1266 | fd = open(path, O_CLOEXEC|O_NOFOLLOW|O_PATH); | |
1267 | if (fd < 0) | |
1268 | return log_error_errno(errno, "Cannot open '%s': %m", path); | |
1269 | ||
b206ac8e | 1270 | return fd_set_attribute(item, fd, NULL); |
936f6bdb FB |
1271 | } |
1272 | ||
d4e9eb91 | 1273 | static int write_one_file(Item *i, const char *path) { |
551470ec FB |
1274 | _cleanup_close_ int fd = -1, dir_fd = -1; |
1275 | char *bn; | |
31c84ff1 FB |
1276 | int r; |
1277 | ||
1278 | assert(i); | |
1279 | assert(path); | |
1280 | assert(i->argument); | |
1281 | assert(i->type == WRITE_FILE); | |
1282 | ||
551470ec FB |
1283 | /* Validate the path and keep the fd on the directory for opening the |
1284 | * file so we're sure that it can't be changed behind our back. */ | |
1285 | dir_fd = path_open_parent_safe(path); | |
1286 | if (dir_fd < 0) | |
1287 | return dir_fd; | |
1288 | ||
1289 | bn = basename(path); | |
1290 | ||
31c84ff1 | 1291 | /* Follows symlinks */ |
551470ec | 1292 | fd = openat(dir_fd, bn, O_NONBLOCK|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
31c84ff1 FB |
1293 | if (fd < 0) { |
1294 | if (errno == ENOENT) { | |
1295 | log_debug_errno(errno, "Not writing missing file \"%s\": %m", path); | |
1296 | return 0; | |
1297 | } | |
1298 | return log_error_errno(errno, "Failed to open file \"%s\": %m", path); | |
1299 | } | |
1300 | ||
1301 | /* 'w' is allowed to write into any kind of files. */ | |
1302 | log_debug("Writing to \"%s\".", path); | |
1303 | ||
1304 | r = loop_write(fd, i->argument, strlen(i->argument), false); | |
1305 | if (r < 0) | |
1306 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1307 | ||
551470ec | 1308 | return fd_set_perms(i, fd, NULL); |
31c84ff1 FB |
1309 | } |
1310 | ||
1311 | static int create_file(Item *i, const char *path) { | |
5ec9d065 FB |
1312 | _cleanup_close_ int fd = -1, dir_fd = -1; |
1313 | struct stat stbuf, *st = NULL; | |
1314 | int r = 0; | |
1315 | char *bn; | |
d4e9eb91 | 1316 | |
874f1947 LP |
1317 | assert(i); |
1318 | assert(path); | |
5ec9d065 FB |
1319 | assert(i->type == CREATE_FILE); |
1320 | ||
1321 | /* 'f' operates on regular files exclusively. */ | |
1322 | ||
1323 | /* Validate the path and keep the fd on the directory for opening the | |
1324 | * file so we're sure that it can't be changed behind our back. */ | |
1325 | dir_fd = path_open_parent_safe(path); | |
1326 | if (dir_fd < 0) | |
1327 | return dir_fd; | |
874f1947 | 1328 | |
5ec9d065 | 1329 | bn = basename(path); |
d4e9eb91 | 1330 | |
43ad6e31 | 1331 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1332 | mac_selinux_create_file_prepare(path, S_IFREG); |
5ec9d065 | 1333 | fd = openat(dir_fd, bn, O_CREAT|O_EXCL|O_NOFOLLOW|O_NONBLOCK|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 1334 | mac_selinux_create_file_clear(); |
5c0d398d | 1335 | } |
d4e9eb91 DR |
1336 | |
1337 | if (fd < 0) { | |
5ec9d065 FB |
1338 | /* Even on a read-only filesystem, open(2) returns EEXIST if the |
1339 | * file already exists. It returns EROFS only if it needs to | |
1340 | * create the file. */ | |
1341 | if (errno != EEXIST) | |
1342 | return log_error_errno(errno, "Failed to create file %s: %m", path); | |
1343 | ||
1344 | /* Re-open the file. At that point it must exist since open(2) | |
1345 | * failed with EEXIST. We still need to check if the perms/mode | |
1346 | * need to be changed. For read-only filesystems, we let | |
1347 | * fd_set_perms() report the error if the perms need to be | |
1348 | * modified. */ | |
1349 | fd = openat(dir_fd, bn, O_NOFOLLOW|O_CLOEXEC|O_PATH, i->mode); | |
1350 | if (fd < 0) | |
1351 | return log_error_errno(errno, "Failed to re-open file %s: %m", path); | |
1352 | ||
1353 | if (fstat(fd, &stbuf) < 0) | |
1354 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
1355 | ||
1356 | if (!S_ISREG(stbuf.st_mode)) { | |
1357 | log_error("%s exists and is not a regular file.", path); | |
1358 | return -EEXIST; | |
49e87292 | 1359 | } |
d4e9eb91 | 1360 | |
5ec9d065 FB |
1361 | st = &stbuf; |
1362 | } else { | |
1363 | ||
1364 | log_debug("\"%s\" has been created.", path); | |
1365 | ||
1366 | if (i->argument) { | |
1367 | log_debug("Writing to \"%s\".", path); | |
f44b28fd | 1368 | |
5ec9d065 FB |
1369 | r = loop_write(fd, i->argument, strlen(i->argument), false); |
1370 | if (r < 0) | |
1371 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1372 | } | |
d4e9eb91 DR |
1373 | } |
1374 | ||
5ec9d065 FB |
1375 | return fd_set_perms(i, fd, st); |
1376 | } | |
d4e9eb91 | 1377 | |
5ec9d065 | 1378 | static int truncate_file(Item *i, const char *path) { |
14ab804e | 1379 | _cleanup_close_ int fd = -1, dir_fd = -1; |
5ec9d065 FB |
1380 | struct stat stbuf, *st = NULL; |
1381 | bool erofs = false; | |
1382 | int r = 0; | |
14ab804e | 1383 | char *bn; |
5ec9d065 FB |
1384 | |
1385 | assert(i); | |
1386 | assert(path); | |
1387 | assert(i->type == TRUNCATE_FILE); | |
d4e9eb91 | 1388 | |
5ec9d065 FB |
1389 | /* We want to operate on regular file exclusively especially since |
1390 | * O_TRUNC is unspecified if the file is neither a regular file nor a | |
1391 | * fifo nor a terminal device. Therefore we first open the file and make | |
1392 | * sure it's a regular one before truncating it. */ | |
3612fbc1 | 1393 | |
14ab804e FB |
1394 | /* Validate the path and keep the fd on the directory for opening the |
1395 | * file so we're sure that it can't be changed behind our back. */ | |
1396 | dir_fd = path_open_parent_safe(path); | |
1397 | if (dir_fd < 0) | |
1398 | return dir_fd; | |
1399 | ||
1400 | bn = basename(path); | |
1401 | ||
5ec9d065 FB |
1402 | RUN_WITH_UMASK(0000) { |
1403 | mac_selinux_create_file_prepare(path, S_IFREG); | |
14ab804e | 1404 | fd = openat(dir_fd, bn, O_CREAT|O_NOFOLLOW|O_NONBLOCK|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
5ec9d065 FB |
1405 | mac_selinux_create_file_clear(); |
1406 | } | |
1407 | ||
1408 | if (fd < 0) { | |
1409 | if (errno != EROFS) | |
1410 | return log_error_errno(errno, "Failed to open/create file %s: %m", path); | |
1411 | ||
1412 | /* On a read-only filesystem, we don't want to fail if the | |
1413 | * target is already empty and the perms are set. So we still | |
1414 | * proceed with the sanity checks and let the remaining | |
1415 | * operations fail with EROFS if they try to modify the target | |
1416 | * file. */ | |
1417 | ||
14ab804e | 1418 | fd = openat(dir_fd, bn, O_NOFOLLOW|O_CLOEXEC|O_PATH, i->mode); |
5ec9d065 FB |
1419 | if (fd < 0) { |
1420 | if (errno == ENOENT) { | |
1421 | log_error("Cannot create file %s on a read-only file system.", path); | |
1422 | return -EROFS; | |
1423 | } | |
1424 | ||
1425 | return log_error_errno(errno, "Failed to re-open file %s: %m", path); | |
1426 | } | |
1427 | ||
1428 | erofs = true; | |
1429 | } | |
1430 | ||
1431 | if (fstat(fd, &stbuf) < 0) | |
4a62c710 | 1432 | return log_error_errno(errno, "stat(%s) failed: %m", path); |
d4e9eb91 | 1433 | |
5ec9d065 FB |
1434 | if (!S_ISREG(stbuf.st_mode)) { |
1435 | log_error("%s exists and is not a regular file.", path); | |
d4e9eb91 DR |
1436 | return -EEXIST; |
1437 | } | |
1438 | ||
5ec9d065 FB |
1439 | if (stbuf.st_size > 0) { |
1440 | if (ftruncate(fd, 0) < 0) { | |
1441 | r = erofs ? -EROFS : -errno; | |
1442 | return log_error_errno(r, "Failed to truncate file %s: %m", path); | |
1443 | } | |
1444 | } else | |
1445 | st = &stbuf; | |
d4e9eb91 | 1446 | |
5ec9d065 FB |
1447 | log_debug("\"%s\" has been created.", path); |
1448 | ||
1449 | if (i->argument) { | |
1450 | log_debug("Writing to \"%s\".", path); | |
1451 | ||
1452 | r = loop_write(fd, i->argument, strlen(i->argument), false); | |
1453 | if (r < 0) { | |
1454 | r = erofs ? -EROFS : r; | |
1455 | return log_error_errno(r, "Failed to write file %s: %m", path); | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | return fd_set_perms(i, fd, st); | |
d4e9eb91 DR |
1460 | } |
1461 | ||
b1f7b17f FB |
1462 | static int copy_files(Item *i) { |
1463 | struct stat st; | |
1464 | int r; | |
1465 | ||
1466 | log_debug("Copying tree \"%s\" to \"%s\".", i->argument, i->path); | |
1467 | ||
1468 | r = copy_tree(i->argument, i->path, | |
1469 | i->uid_set ? i->uid : UID_INVALID, | |
1470 | i->gid_set ? i->gid : GID_INVALID, | |
1471 | COPY_REFLINK); | |
1472 | ||
1473 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1474 | r = -EEXIST; | |
1475 | ||
1476 | if (r < 0) { | |
1477 | struct stat a, b; | |
1478 | ||
1479 | if (r != -EEXIST) | |
1480 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
1481 | ||
1482 | if (stat(i->argument, &a) < 0) | |
1483 | return log_error_errno(errno, "stat(%s) failed: %m", i->argument); | |
1484 | ||
1485 | if (stat(i->path, &b) < 0) | |
1486 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
1487 | ||
1488 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1489 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1490 | return 0; | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | return path_set_perms(i, i->path); | |
1495 | } | |
1496 | ||
081043cf | 1497 | typedef int (*action_t)(Item *, const char *); |
936f6bdb | 1498 | typedef int (*fdaction_t)(Item *, int fd, const struct stat *st); |
081043cf | 1499 | |
14f3480a FB |
1500 | static int item_do(Item *i, int fd, fdaction_t action) { |
1501 | struct stat st; | |
936f6bdb | 1502 | int r = 0, q; |
e73a03e0 LP |
1503 | |
1504 | assert(i); | |
936f6bdb | 1505 | assert(fd >= 0); |
14f3480a FB |
1506 | |
1507 | if (fstat(fd, &st) < 0) { | |
1508 | r = -errno; | |
1509 | goto finish; | |
1510 | } | |
a8d88783 MS |
1511 | |
1512 | /* This returns the first error we run into, but nevertheless | |
1513 | * tries to go on */ | |
14f3480a | 1514 | r = action(i, fd, &st); |
a8d88783 | 1515 | |
14f3480a | 1516 | if (S_ISDIR(st.st_mode)) { |
22dd8d35 | 1517 | char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
936f6bdb FB |
1518 | _cleanup_closedir_ DIR *d = NULL; |
1519 | struct dirent *de; | |
a8d88783 | 1520 | |
936f6bdb FB |
1521 | /* The passed 'fd' was opened with O_PATH. We need to convert |
1522 | * it into a 'regular' fd before reading the directory content. */ | |
1523 | xsprintf(procfs_path, "/proc/self/fd/%i", fd); | |
a8d88783 | 1524 | |
936f6bdb FB |
1525 | d = opendir(procfs_path); |
1526 | if (!d) { | |
1527 | r = r ?: -errno; | |
1528 | goto finish; | |
1529 | } | |
a8d88783 | 1530 | |
936f6bdb | 1531 | FOREACH_DIRENT_ALL(de, d, q = -errno; goto finish) { |
936f6bdb | 1532 | int de_fd; |
a8d88783 | 1533 | |
936f6bdb FB |
1534 | if (dot_or_dot_dot(de->d_name)) |
1535 | continue; | |
1536 | ||
1537 | de_fd = openat(fd, de->d_name, O_NOFOLLOW|O_CLOEXEC|O_PATH); | |
14f3480a | 1538 | if (de_fd >= 0) |
936f6bdb | 1539 | /* pass ownership of dirent fd over */ |
14f3480a | 1540 | q = item_do(i, de_fd, action); |
936f6bdb FB |
1541 | else |
1542 | q = -errno; | |
a8d88783 | 1543 | |
e73a03e0 LP |
1544 | if (q < 0 && r == 0) |
1545 | r = q; | |
a8d88783 | 1546 | } |
a8d88783 | 1547 | } |
936f6bdb FB |
1548 | finish: |
1549 | safe_close(fd); | |
e73a03e0 | 1550 | return r; |
a8d88783 MS |
1551 | } |
1552 | ||
936f6bdb | 1553 | static int glob_item(Item *i, action_t action) { |
df99a9ef | 1554 | _cleanup_globfree_ glob_t g = { |
ebf31a1f | 1555 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, |
df99a9ef | 1556 | }; |
e73a03e0 | 1557 | int r = 0, k; |
99e68c0b MS |
1558 | char **fn; |
1559 | ||
84e72b5e ZJS |
1560 | k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g); |
1561 | if (k < 0 && k != -ENOENT) | |
1562 | return log_error_errno(k, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1563 | |
c84a9488 ZJS |
1564 | STRV_FOREACH(fn, g.gl_pathv) { |
1565 | k = action(i, *fn); | |
e73a03e0 | 1566 | if (k < 0 && r == 0) |
99e68c0b | 1567 | r = k; |
936f6bdb FB |
1568 | } |
1569 | ||
1570 | return r; | |
1571 | } | |
081043cf | 1572 | |
936f6bdb FB |
1573 | static int glob_item_recursively(Item *i, fdaction_t action) { |
1574 | _cleanup_globfree_ glob_t g = { | |
1575 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
1576 | }; | |
1577 | int r = 0, k; | |
1578 | char **fn; | |
1579 | ||
1580 | k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g); | |
1581 | if (k < 0 && k != -ENOENT) | |
1582 | return log_error_errno(k, "glob(%s) failed: %m", i->path); | |
1583 | ||
1584 | STRV_FOREACH(fn, g.gl_pathv) { | |
1585 | _cleanup_close_ int fd = -1; | |
936f6bdb FB |
1586 | |
1587 | /* Make sure we won't trigger/follow file object (such as | |
1588 | * device nodes, automounts, ...) pointed out by 'fn' with | |
1589 | * O_PATH. Note, when O_PATH is used, flags other than | |
1590 | * O_CLOEXEC, O_DIRECTORY, and O_NOFOLLOW are ignored. */ | |
1591 | ||
1592 | fd = open(*fn, O_CLOEXEC|O_NOFOLLOW|O_PATH); | |
1593 | if (fd < 0) { | |
1594 | r = r ?: -errno; | |
1595 | continue; | |
1596 | } | |
1597 | ||
14f3480a | 1598 | k = item_do(i, fd, action); |
936f6bdb FB |
1599 | if (k < 0 && r == 0) |
1600 | r = k; | |
1601 | ||
1602 | /* we passed fd ownership to the previous call */ | |
1603 | fd = -1; | |
c84a9488 | 1604 | } |
99e68c0b | 1605 | |
99e68c0b MS |
1606 | return r; |
1607 | } | |
1608 | ||
294929f8 ZJS |
1609 | typedef enum { |
1610 | CREATION_NORMAL, | |
1611 | CREATION_EXISTING, | |
1612 | CREATION_FORCE, | |
7a7d5db7 LP |
1613 | _CREATION_MODE_MAX, |
1614 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1615 | } CreationMode; |
1616 | ||
7a7d5db7 LP |
1617 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1618 | [CREATION_NORMAL] = "Created", | |
1619 | [CREATION_EXISTING] = "Found existing", | |
1620 | [CREATION_FORCE] = "Created replacement", | |
1621 | }; | |
1622 | ||
1623 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1624 | |
3b63d2d3 | 1625 | static int create_item(Item *i) { |
3b63d2d3 | 1626 | struct stat st; |
df28bc08 | 1627 | int r = 0; |
114a17d2 | 1628 | int q = 0; |
294929f8 | 1629 | CreationMode creation; |
5008d581 | 1630 | |
3b63d2d3 | 1631 | assert(i); |
5008d581 | 1632 | |
582deb84 ZJS |
1633 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1634 | ||
3b63d2d3 LP |
1635 | switch (i->type) { |
1636 | ||
1637 | case IGNORE_PATH: | |
78a92a5a | 1638 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1639 | case REMOVE_PATH: |
1640 | case RECURSIVE_REMOVE_PATH: | |
1641 | return 0; | |
5008d581 | 1642 | |
3b63d2d3 | 1643 | case CREATE_FILE: |
7fa10748 LP |
1644 | RUN_WITH_UMASK(0000) |
1645 | (void) mkdir_parents_label(i->path, 0755); | |
1646 | ||
31c84ff1 | 1647 | r = create_file(i, i->path); |
1845fdd9 DR |
1648 | if (r < 0) |
1649 | return r; | |
1650 | break; | |
265ffa1e | 1651 | |
5ec9d065 FB |
1652 | case TRUNCATE_FILE: |
1653 | RUN_WITH_UMASK(0000) | |
1654 | (void) mkdir_parents_label(i->path, 0755); | |
1655 | ||
1656 | r = truncate_file(i, i->path); | |
1657 | if (r < 0) | |
1658 | return r; | |
1659 | break; | |
1660 | ||
7b887f22 | 1661 | case COPY_FILES: |
7fa10748 LP |
1662 | RUN_WITH_UMASK(0000) |
1663 | (void) mkdir_parents_label(i->path, 0755); | |
1664 | ||
b1f7b17f | 1665 | r = copy_files(i); |
849958d1 LP |
1666 | if (r < 0) |
1667 | return r; | |
849958d1 LP |
1668 | break; |
1669 | ||
d4e9eb91 | 1670 | case WRITE_FILE: |
936f6bdb | 1671 | r = glob_item(i, write_one_file); |
f05bc3f7 MS |
1672 | if (r < 0) |
1673 | return r; | |
5008d581 | 1674 | |
3b63d2d3 LP |
1675 | break; |
1676 | ||
3b63d2d3 | 1677 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1678 | case TRUNCATE_DIRECTORY: |
1679 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1680 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1681 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
d7b8eec7 | 1682 | RUN_WITH_UMASK(0000) |
7fa10748 | 1683 | (void) mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1684 | |
5fb13eb5 | 1685 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
2904e949 | 1686 | |
945403e6 | 1687 | if (btrfs_is_subvol(empty_to_root(arg_root)) <= 0) |
2904e949 LP |
1688 | |
1689 | /* Don't create a subvolume unless the | |
1690 | * root directory is one, too. We do | |
1691 | * this under the assumption that if | |
1692 | * the root directory is just a plain | |
1693 | * directory (i.e. very light-weight), | |
1694 | * we shouldn't try to split it up | |
1695 | * into subvolumes (i.e. more | |
1696 | * heavy-weight). Thus, chroot() | |
1697 | * environments and suchlike will get | |
1698 | * a full brtfs subvolume set up below | |
1699 | * their tree only if they | |
1700 | * specifically set up a btrfs | |
1701 | * subvolume for the root dir too. */ | |
1702 | ||
1703 | r = -ENOTTY; | |
1704 | else { | |
1705 | RUN_WITH_UMASK((~i->mode) & 0777) | |
1706 | r = btrfs_subvol_make(i->path); | |
1707 | } | |
5fb13eb5 | 1708 | } else |
d7b8eec7 LP |
1709 | r = 0; |
1710 | ||
582deb84 | 1711 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1712 | RUN_WITH_UMASK(0000) |
1713 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1714 | |
e156347e | 1715 | if (r < 0) { |
7b135a73 | 1716 | int k; |
5008d581 | 1717 | |
4c701096 | 1718 | if (!IN_SET(r, -EEXIST, -EROFS)) |
7b135a73 | 1719 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); |
5008d581 | 1720 | |
7b135a73 LP |
1721 | k = is_dir(i->path, false); |
1722 | if (k == -ENOENT && r == -EROFS) | |
1723 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1724 | if (k < 0) | |
1725 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1726 | if (!k) { | |
1727 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1728 | return 0; |
1729 | } | |
294929f8 ZJS |
1730 | |
1731 | creation = CREATION_EXISTING; | |
1732 | } else | |
1733 | creation = CREATION_NORMAL; | |
7b135a73 | 1734 | |
7a7d5db7 | 1735 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1736 | |
5fb13eb5 LP |
1737 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1738 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
114a17d2 | 1739 | if (r == -ENOTTY) |
022ffe4c | 1740 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (unsupported fs or dir not a subvolume): %m", i->path); |
114a17d2 | 1741 | else if (r == -EROFS) |
022ffe4c | 1742 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (fs is read-only).", i->path); |
114a17d2 | 1743 | else if (r == -ENOPROTOOPT) |
022ffe4c | 1744 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (quota support is disabled).", i->path); |
114a17d2 EV |
1745 | else if (r < 0) |
1746 | q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1747 | else if (r > 0) | |
5fb13eb5 | 1748 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); |
114a17d2 | 1749 | else if (r == 0) |
5fb13eb5 LP |
1750 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); |
1751 | } | |
1752 | ||
4831981d | 1753 | _fallthrough_; |
df8dee85 | 1754 | case EMPTY_DIRECTORY: |
939ca213 | 1755 | r = glob_item(i, path_set_perms); |
114a17d2 EV |
1756 | if (q < 0) |
1757 | return q; | |
f05bc3f7 MS |
1758 | if (r < 0) |
1759 | return r; | |
3b63d2d3 LP |
1760 | |
1761 | break; | |
ee17ee7c LP |
1762 | |
1763 | case CREATE_FIFO: | |
5c0d398d | 1764 | RUN_WITH_UMASK(0000) { |
7fa10748 LP |
1765 | (void) mkdir_parents_label(i->path, 0755); |
1766 | ||
ecabcf8b | 1767 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1768 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1769 | mac_selinux_create_file_clear(); |
5c0d398d | 1770 | } |
ee17ee7c | 1771 | |
1554afae | 1772 | if (r < 0) { |
4a62c710 MS |
1773 | if (errno != EEXIST) |
1774 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1775 | |
a542c4dc | 1776 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1777 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1778 | |
1554afae LP |
1779 | if (!S_ISFIFO(st.st_mode)) { |
1780 | ||
1781 | if (i->force) { | |
1554afae | 1782 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1783 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1784 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1785 | mac_selinux_create_file_clear(); |
1554afae LP |
1786 | } |
1787 | ||
f647962d MS |
1788 | if (r < 0) |
1789 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1790 | creation = CREATION_FORCE; |
1554afae | 1791 | } else { |
a542c4dc | 1792 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1793 | return 0; |
1794 | } | |
294929f8 ZJS |
1795 | } else |
1796 | creation = CREATION_EXISTING; | |
1797 | } else | |
1798 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1799 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1800 | |
b705ab6a | 1801 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1802 | if (r < 0) |
1803 | return r; | |
ee17ee7c LP |
1804 | |
1805 | break; | |
a8d88783 | 1806 | |
5c5ccf12 | 1807 | case CREATE_SYMLINK: { |
7fa10748 LP |
1808 | RUN_WITH_UMASK(0000) |
1809 | (void) mkdir_parents_label(i->path, 0755); | |
1810 | ||
ecabcf8b | 1811 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
4cef1923 | 1812 | r = symlink(i->argument, i->path); |
ecabcf8b | 1813 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1814 | |
468d726b | 1815 | if (r < 0) { |
2e78fa79 | 1816 | _cleanup_free_ char *x = NULL; |
468d726b | 1817 | |
4a62c710 | 1818 | if (errno != EEXIST) |
4cef1923 | 1819 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", i->argument, i->path); |
2e78fa79 LP |
1820 | |
1821 | r = readlink_malloc(i->path, &x); | |
4cef1923 | 1822 | if (r < 0 || !streq(i->argument, x)) { |
2e78fa79 LP |
1823 | |
1824 | if (i->force) { | |
ecabcf8b | 1825 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
4cef1923 | 1826 | r = symlink_atomic(i->argument, i->path); |
ecabcf8b | 1827 | mac_selinux_create_file_clear(); |
2e78fa79 | 1828 | |
2ef5de1b | 1829 | if (IN_SET(r, -EISDIR, -EEXIST, -ENOTEMPTY)) { |
b3f5897f WD |
1830 | r = rm_rf(i->path, REMOVE_ROOT|REMOVE_PHYSICAL); |
1831 | if (r < 0) | |
1832 | return log_error_errno(r, "rm -fr %s failed: %m", i->path); | |
1833 | ||
1834 | mac_selinux_create_file_prepare(i->path, S_IFLNK); | |
4cef1923 | 1835 | r = symlink(i->argument, i->path) < 0 ? -errno : 0; |
b3f5897f WD |
1836 | mac_selinux_create_file_clear(); |
1837 | } | |
f647962d | 1838 | if (r < 0) |
4cef1923 | 1839 | return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path); |
a542c4dc | 1840 | |
294929f8 | 1841 | creation = CREATION_FORCE; |
1554afae | 1842 | } else { |
582deb84 | 1843 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1844 | return 0; |
1845 | } | |
294929f8 ZJS |
1846 | } else |
1847 | creation = CREATION_EXISTING; | |
1848 | } else | |
a542c4dc | 1849 | |
294929f8 | 1850 | creation = CREATION_NORMAL; |
7a7d5db7 | 1851 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1852 | break; |
5c5ccf12 | 1853 | } |
468d726b LP |
1854 | |
1855 | case CREATE_BLOCK_DEVICE: | |
1856 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1857 | mode_t file_type; |
1858 | ||
1859 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1860 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1861 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1862 | that case to avoid noise, and we don't support |
1863 | virtualized devices in containers anyway. */ | |
1864 | ||
1865 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1866 | return 0; | |
1867 | } | |
1868 | ||
7fa10748 LP |
1869 | RUN_WITH_UMASK(0000) |
1870 | (void) mkdir_parents_label(i->path, 0755); | |
1871 | ||
1554afae | 1872 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1873 | |
5c0d398d | 1874 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1875 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1876 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1877 | mac_selinux_create_file_clear(); |
5c0d398d | 1878 | } |
468d726b | 1879 | |
6555ad8e KS |
1880 | if (r < 0) { |
1881 | if (errno == EPERM) { | |
1882 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1883 | "skipping creation of device node %s.", i->path); | |
1884 | return 0; | |
1885 | } | |
1886 | ||
4a62c710 MS |
1887 | if (errno != EEXIST) |
1888 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1889 | |
a542c4dc | 1890 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1891 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1892 | |
1554afae LP |
1893 | if ((st.st_mode & S_IFMT) != file_type) { |
1894 | ||
1895 | if (i->force) { | |
1896 | ||
1897 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1898 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1899 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1900 | mac_selinux_create_file_clear(); |
1554afae LP |
1901 | } |
1902 | ||
f647962d | 1903 | if (r < 0) |
294929f8 ZJS |
1904 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1905 | creation = CREATION_FORCE; | |
1554afae LP |
1906 | } else { |
1907 | log_debug("%s is not a device node.", i->path); | |
1908 | return 0; | |
1909 | } | |
294929f8 ZJS |
1910 | } else |
1911 | creation = CREATION_EXISTING; | |
1912 | } else | |
1913 | creation = CREATION_NORMAL; | |
a542c4dc | 1914 | |
294929f8 | 1915 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1916 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1917 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1918 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1919 | |
b705ab6a | 1920 | r = path_set_perms(i, i->path); |
468d726b LP |
1921 | if (r < 0) |
1922 | return r; | |
1923 | ||
1924 | break; | |
1925 | } | |
1926 | ||
e73a03e0 | 1927 | case ADJUST_MODE: |
777b87e7 | 1928 | case RELABEL_PATH: |
936f6bdb | 1929 | r = glob_item(i, path_set_perms); |
777b87e7 | 1930 | if (r < 0) |
96ca8194 | 1931 | return r; |
777b87e7 MS |
1932 | break; |
1933 | ||
a8d88783 | 1934 | case RECURSIVE_RELABEL_PATH: |
936f6bdb | 1935 | r = glob_item_recursively(i, fd_set_perms); |
a8d88783 MS |
1936 | if (r < 0) |
1937 | return r; | |
ebf4e801 | 1938 | break; |
e73a03e0 | 1939 | |
ebf4e801 | 1940 | case SET_XATTR: |
936f6bdb | 1941 | r = glob_item(i, path_set_xattrs); |
b705ab6a ZJS |
1942 | if (r < 0) |
1943 | return r; | |
1944 | break; | |
1945 | ||
1946 | case RECURSIVE_SET_XATTR: | |
936f6bdb | 1947 | r = glob_item_recursively(i, fd_set_xattrs); |
ebf4e801 MW |
1948 | if (r < 0) |
1949 | return r; | |
e73a03e0 | 1950 | break; |
f8eeeaf9 ZJS |
1951 | |
1952 | case SET_ACL: | |
936f6bdb | 1953 | r = glob_item(i, path_set_acls); |
f8eeeaf9 ZJS |
1954 | if (r < 0) |
1955 | return r; | |
b705ab6a ZJS |
1956 | break; |
1957 | ||
1958 | case RECURSIVE_SET_ACL: | |
936f6bdb | 1959 | r = glob_item_recursively(i, fd_set_acls); |
b705ab6a ZJS |
1960 | if (r < 0) |
1961 | return r; | |
1962 | break; | |
22c3a6ca | 1963 | |
88ec4dfa | 1964 | case SET_ATTRIBUTE: |
936f6bdb | 1965 | r = glob_item(i, path_set_attribute); |
22c3a6ca GB |
1966 | if (r < 0) |
1967 | return r; | |
1968 | break; | |
1969 | ||
88ec4dfa | 1970 | case RECURSIVE_SET_ATTRIBUTE: |
936f6bdb | 1971 | r = glob_item_recursively(i, fd_set_attribute); |
22c3a6ca GB |
1972 | if (r < 0) |
1973 | return r; | |
1974 | break; | |
3b63d2d3 LP |
1975 | } |
1976 | ||
f05bc3f7 | 1977 | return 0; |
3b63d2d3 LP |
1978 | } |
1979 | ||
a0896123 | 1980 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1981 | int r; |
1982 | ||
1983 | assert(i); | |
1984 | ||
1985 | switch (i->type) { | |
1986 | ||
3b63d2d3 | 1987 | case REMOVE_PATH: |
4a62c710 | 1988 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1989 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1990 | |
1991 | break; | |
1992 | ||
1993 | case TRUNCATE_DIRECTORY: | |
1994 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1995 | /* FIXME: we probably should use dir_cleanup() here |
1996 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1997 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1998 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1999 | if (r < 0 && r != -ENOENT) |
2000 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
2001 | |
2002 | break; | |
7fcb4b9b ZJS |
2003 | |
2004 | default: | |
2005 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
2006 | } |
2007 | ||
2008 | return 0; | |
2009 | } | |
2010 | ||
a0896123 | 2011 | static int remove_item(Item *i) { |
b8bb3e8f LP |
2012 | assert(i); |
2013 | ||
582deb84 ZJS |
2014 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
2015 | ||
b8bb3e8f LP |
2016 | switch (i->type) { |
2017 | ||
b8bb3e8f LP |
2018 | case REMOVE_PATH: |
2019 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 2020 | case RECURSIVE_REMOVE_PATH: |
936f6bdb | 2021 | return glob_item(i, remove_item_instance); |
b8bb3e8f | 2022 | |
df8dee85 ZJS |
2023 | default: |
2024 | return 0; | |
2025 | } | |
b8bb3e8f LP |
2026 | } |
2027 | ||
78a92a5a | 2028 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 2029 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
2030 | struct stat s, ps; |
2031 | bool mountpoint; | |
78a92a5a | 2032 | usec_t cutoff, n; |
582deb84 | 2033 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
2034 | |
2035 | assert(i); | |
2036 | ||
2037 | if (!i->age_set) | |
2038 | return 0; | |
2039 | ||
2040 | n = now(CLOCK_REALTIME); | |
2041 | if (n < i->age) | |
2042 | return 0; | |
2043 | ||
2044 | cutoff = n - i->age; | |
2045 | ||
df99a9ef | 2046 | d = opendir_nomod(instance); |
78a92a5a | 2047 | if (!d) { |
d710aaf7 | 2048 | if (IN_SET(errno, ENOENT, ENOTDIR)) { |
582deb84 | 2049 | log_debug_errno(errno, "Directory \"%s\": %m", instance); |
78a92a5a | 2050 | return 0; |
582deb84 | 2051 | } |
78a92a5a | 2052 | |
d710aaf7 | 2053 | return log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
2054 | } |
2055 | ||
4a62c710 MS |
2056 | if (fstat(dirfd(d), &s) < 0) |
2057 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
2058 | |
2059 | if (!S_ISDIR(s.st_mode)) { | |
2060 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 2061 | return -ENOTDIR; |
78a92a5a MS |
2062 | } |
2063 | ||
4a62c710 MS |
2064 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
2065 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a | 2066 | |
2bb158c1 | 2067 | mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
78a92a5a | 2068 | |
582deb84 ZJS |
2069 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
2070 | mountpoint ? "mount point" : "directory", | |
2071 | instance, | |
2072 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
2073 | ||
2074 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
2075 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
2076 | } |
2077 | ||
2078 | static int clean_item(Item *i) { | |
78a92a5a MS |
2079 | assert(i); |
2080 | ||
582deb84 ZJS |
2081 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
2082 | ||
78a92a5a MS |
2083 | switch (i->type) { |
2084 | case CREATE_DIRECTORY: | |
d7b8eec7 | 2085 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
2086 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
2087 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
78a92a5a MS |
2088 | case TRUNCATE_DIRECTORY: |
2089 | case IGNORE_PATH: | |
849958d1 | 2090 | case COPY_FILES: |
78a92a5a | 2091 | clean_item_instance(i, i->path); |
df8dee85 | 2092 | return 0; |
65241c14 | 2093 | case EMPTY_DIRECTORY: |
78a92a5a | 2094 | case IGNORE_DIRECTORY_PATH: |
936f6bdb | 2095 | return glob_item(i, clean_item_instance); |
78a92a5a | 2096 | default: |
df8dee85 | 2097 | return 0; |
78a92a5a | 2098 | } |
78a92a5a MS |
2099 | } |
2100 | ||
3f93da98 ZJS |
2101 | static int process_item_array(ItemArray *array); |
2102 | ||
3b63d2d3 | 2103 | static int process_item(Item *i) { |
1e95893a | 2104 | int r, q, p, t = 0; |
9348f0e6 | 2105 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
2106 | |
2107 | assert(i); | |
2108 | ||
1910cd0e LP |
2109 | if (i->done) |
2110 | return 0; | |
2111 | ||
2112 | i->done = true; | |
2113 | ||
9348f0e6 ZJS |
2114 | prefix = malloc(strlen(i->path) + 1); |
2115 | if (!prefix) | |
2116 | return log_oom(); | |
2117 | ||
1910cd0e | 2118 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 2119 | ItemArray *j; |
1910cd0e | 2120 | |
ef43a391 | 2121 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
2122 | if (j) { |
2123 | int s; | |
2124 | ||
3f93da98 | 2125 | s = process_item_array(j); |
1db50423 ZJS |
2126 | if (s < 0 && t == 0) |
2127 | t = s; | |
2128 | } | |
1910cd0e LP |
2129 | } |
2130 | ||
655f2da0 N |
2131 | if (chase_symlinks(i->path, NULL, CHASE_NO_AUTOFS, NULL) == -EREMOTE) |
2132 | return t; | |
2133 | ||
3b63d2d3 | 2134 | r = arg_create ? create_item(i) : 0; |
a0896123 | 2135 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
2136 | p = arg_clean ? clean_item(i) : 0; |
2137 | ||
1db50423 ZJS |
2138 | return t < 0 ? t : |
2139 | r < 0 ? r : | |
2140 | q < 0 ? q : | |
2141 | p; | |
3b63d2d3 LP |
2142 | } |
2143 | ||
3f93da98 ZJS |
2144 | static int process_item_array(ItemArray *array) { |
2145 | unsigned n; | |
2146 | int r = 0, k; | |
753615e8 | 2147 | |
3f93da98 ZJS |
2148 | assert(array); |
2149 | ||
2150 | for (n = 0; n < array->count; n++) { | |
2151 | k = process_item(array->items + n); | |
2152 | if (k < 0 && r == 0) | |
2153 | r = k; | |
2154 | } | |
2155 | ||
2156 | return r; | |
2157 | } | |
3b63d2d3 | 2158 | |
3f93da98 ZJS |
2159 | static void item_free_contents(Item *i) { |
2160 | assert(i); | |
3b63d2d3 | 2161 | free(i->path); |
468d726b | 2162 | free(i->argument); |
ebf4e801 | 2163 | strv_free(i->xattrs); |
f8eeeaf9 | 2164 | |
349cc4a5 | 2165 | #if HAVE_ACL |
f8eeeaf9 ZJS |
2166 | acl_free(i->acl_access); |
2167 | acl_free(i->acl_default); | |
2168 | #endif | |
3b63d2d3 LP |
2169 | } |
2170 | ||
3f93da98 ZJS |
2171 | static void item_array_free(ItemArray *a) { |
2172 | unsigned n; | |
2173 | ||
2174 | if (!a) | |
2175 | return; | |
2176 | ||
2177 | for (n = 0; n < a->count; n++) | |
2178 | item_free_contents(a->items + n); | |
2179 | free(a->items); | |
2180 | free(a); | |
2181 | } | |
e2f2fb78 | 2182 | |
17493fa5 LP |
2183 | static int item_compare(const void *a, const void *b) { |
2184 | const Item *x = a, *y = b; | |
2185 | ||
2186 | /* Make sure that the ownership taking item is put first, so | |
2187 | * that we first create the node, and then can adjust it */ | |
2188 | ||
2189 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
2190 | return -1; | |
2191 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
2192 | return 1; | |
2193 | ||
2194 | return (int) x->type - (int) y->type; | |
2195 | } | |
2196 | ||
3f93da98 | 2197 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
2198 | assert(a); |
2199 | assert(b); | |
3f93da98 | 2200 | assert(streq(a->path, b->path)); |
bfe95f35 | 2201 | |
3f93da98 ZJS |
2202 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
2203 | /* check if the items are the same */ | |
2204 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 2205 | |
3f93da98 ZJS |
2206 | a->uid_set == b->uid_set && |
2207 | a->uid == b->uid && | |
bfe95f35 | 2208 | |
3f93da98 ZJS |
2209 | a->gid_set == b->gid_set && |
2210 | a->gid == b->gid && | |
bfe95f35 | 2211 | |
3f93da98 ZJS |
2212 | a->mode_set == b->mode_set && |
2213 | a->mode == b->mode && | |
bfe95f35 | 2214 | |
3f93da98 ZJS |
2215 | a->age_set == b->age_set && |
2216 | a->age == b->age && | |
bfe95f35 | 2217 | |
3f93da98 | 2218 | a->mask_perms == b->mask_perms && |
bfe95f35 | 2219 | |
3f93da98 | 2220 | a->keep_first_level == b->keep_first_level && |
468d726b | 2221 | |
3f93da98 | 2222 | a->major_minor == b->major_minor; |
468d726b | 2223 | |
bfe95f35 LP |
2224 | return true; |
2225 | } | |
2226 | ||
a2aced4a DR |
2227 | static bool should_include_path(const char *path) { |
2228 | char **prefix; | |
2229 | ||
abef3f91 | 2230 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
2231 | if (path_startswith(path, *prefix)) { |
2232 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
2233 | path, *prefix); | |
5c795114 | 2234 | return false; |
582deb84 | 2235 | } |
a2aced4a | 2236 | |
abef3f91 | 2237 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
2238 | if (path_startswith(path, *prefix)) { |
2239 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 2240 | return true; |
582deb84 | 2241 | } |
a2aced4a | 2242 | |
5c795114 DR |
2243 | /* no matches, so we should include this path only if we |
2244 | * have no whitelist at all */ | |
7b943bb7 | 2245 | if (strv_isempty(arg_include_prefixes)) |
582deb84 ZJS |
2246 | return true; |
2247 | ||
2248 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
2249 | return false; | |
a2aced4a DR |
2250 | } |
2251 | ||
4cef1923 FB |
2252 | static int specifier_expansion_from_arg(Item *i) { |
2253 | _cleanup_free_ char *unescaped = NULL, *resolved = NULL; | |
2254 | char **xattr; | |
2255 | int r; | |
2256 | ||
2257 | assert(i); | |
2258 | ||
2259 | if (i->argument == NULL) | |
2260 | return 0; | |
2261 | ||
2262 | switch (i->type) { | |
2263 | case COPY_FILES: | |
2264 | case CREATE_SYMLINK: | |
2265 | case CREATE_FILE: | |
2266 | case TRUNCATE_FILE: | |
2267 | case WRITE_FILE: | |
2268 | r = cunescape(i->argument, 0, &unescaped); | |
2269 | if (r < 0) | |
2270 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
2271 | ||
2272 | r = specifier_printf(unescaped, specifier_table, NULL, &resolved); | |
2273 | if (r < 0) | |
2274 | return r; | |
2275 | ||
2276 | free_and_replace(i->argument, resolved); | |
2277 | break; | |
2278 | ||
2279 | case SET_XATTR: | |
2280 | case RECURSIVE_SET_XATTR: | |
2281 | assert(i->xattrs); | |
2282 | ||
2283 | STRV_FOREACH (xattr, i->xattrs) { | |
2284 | r = specifier_printf(*xattr, specifier_table, NULL, &resolved); | |
2285 | if (r < 0) | |
2286 | return r; | |
2287 | ||
2288 | free_and_replace(*xattr, resolved); | |
2289 | } | |
2290 | break; | |
2291 | ||
2292 | default: | |
2293 | break; | |
2294 | } | |
2295 | return 0; | |
2296 | } | |
2297 | ||
a2d1fb88 LP |
2298 | static int patch_var_run(const char *fname, unsigned line, char **path) { |
2299 | const char *k; | |
2300 | char *n; | |
2301 | ||
2302 | assert(path); | |
2303 | assert(*path); | |
2304 | ||
2305 | /* Optionally rewrites lines referencing /var/run/, to use /run/ instead. Why bother? tmpfiles merges lines in | |
2306 | * some cases and detects conflicts in others. If files/directories are specified through two equivalent lines | |
2307 | * this is problematic as neither case will be detected. Ideally we'd detect these cases by resolving symlinks | |
2308 | * early, but that's precisely not what we can do here as this code very likely is running very early on, at a | |
2309 | * time where the paths in question are not available yet, or even more importantly, our own tmpfiles rules | |
2310 | * might create the paths that are intermediary to the listed paths. We can't really cover the generic case, | |
2311 | * but the least we can do is cover the specific case of /var/run vs. /run, as /var/run is a legacy name for | |
2312 | * /run only, and we explicitly document that and require that on systemd systems the former is a symlink to | |
2313 | * the latter. Moreover files below this path are by far the primary usecase for tmpfiles.d/. */ | |
2314 | ||
2315 | k = path_startswith(*path, "/var/run/"); | |
2316 | if (isempty(k)) /* Don't complain about other paths than /var/run, and not about /var/run itself either. */ | |
2317 | return 0; | |
2318 | ||
2319 | n = strjoin("/run/", k); | |
2320 | if (!n) | |
2321 | return log_oom(); | |
2322 | ||
2323 | /* Also log about this briefly. We do so at LOG_NOTICE level, as we fixed up the situation automatically, hence | |
2324 | * there's no immediate need for action by the user. However, in the interest of making things less confusing | |
2325 | * to the user, let's still inform the user that these snippets should really be updated. */ | |
2326 | ||
2327 | 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); | |
2328 | ||
2329 | free(*path); | |
2330 | *path = n; | |
2331 | ||
2332 | return 0; | |
2333 | } | |
2334 | ||
d9daae55 | 2335 | static int parse_line(const char *fname, unsigned line, const char *buffer, bool *invalid_config) { |
1731e34a | 2336 | |
cde684a2 | 2337 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
2338 | _cleanup_(item_free_contents) Item i = {}; |
2339 | ItemArray *existing; | |
ef43a391 | 2340 | OrderedHashmap *h; |
657cf7f4 | 2341 | int r, pos; |
5f255144 | 2342 | bool force = false, boot = false; |
3b63d2d3 LP |
2343 | |
2344 | assert(fname); | |
2345 | assert(line >= 1); | |
2346 | assert(buffer); | |
2347 | ||
68685607 | 2348 | r = extract_many_words( |
4034a06d | 2349 | &buffer, |
68685607 | 2350 | NULL, |
12ba2c44 | 2351 | EXTRACT_QUOTES, |
4034a06d LP |
2352 | &action, |
2353 | &path, | |
2354 | &mode, | |
2355 | &user, | |
2356 | &group, | |
2357 | &age, | |
2358 | NULL); | |
d9daae55 | 2359 | if (r < 0) { |
751223fe ZJS |
2360 | if (IN_SET(r, -EINVAL, -EBADSLT)) |
2361 | /* invalid quoting and such or an unknown specifier */ | |
d9daae55 | 2362 | *invalid_config = true; |
657cf7f4 | 2363 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); |
4b93699d | 2364 | } else if (r < 2) { |
d9daae55 | 2365 | *invalid_config = true; |
3b63d2d3 | 2366 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 2367 | return -EIO; |
5008d581 LP |
2368 | } |
2369 | ||
aa5f6817 | 2370 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
2371 | i.argument = strdup(buffer); |
2372 | if (!i.argument) | |
2373 | return log_oom(); | |
2374 | } | |
2375 | ||
2e78fa79 | 2376 | if (isempty(action)) { |
d9daae55 | 2377 | *invalid_config = true; |
2e78fa79 | 2378 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); |
c4708f13 | 2379 | return -EINVAL; |
2e78fa79 LP |
2380 | } |
2381 | ||
5f255144 ZJS |
2382 | for (pos = 1; action[pos]; pos++) { |
2383 | if (action[pos] == '!' && !boot) | |
2384 | boot = true; | |
2385 | else if (action[pos] == '+' && !force) | |
2386 | force = true; | |
2387 | else { | |
d9daae55 | 2388 | *invalid_config = true; |
5f255144 ZJS |
2389 | log_error("[%s:%u] Unknown modifiers in command '%s'", |
2390 | fname, line, action); | |
2391 | return -EINVAL; | |
2392 | } | |
2e78fa79 LP |
2393 | } |
2394 | ||
582deb84 ZJS |
2395 | if (boot && !arg_boot) { |
2396 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
2397 | action, path); | |
c4708f13 | 2398 | return 0; |
582deb84 | 2399 | } |
c4708f13 | 2400 | |
3f93da98 ZJS |
2401 | i.type = action[0]; |
2402 | i.force = force; | |
2e78fa79 | 2403 | |
3f93da98 | 2404 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
5a8575ef | 2405 | if (r == -ENXIO) |
4cef1923 | 2406 | return log_unresolvable_specifier(fname, line); |
d9daae55 | 2407 | if (r < 0) { |
751223fe ZJS |
2408 | if (IN_SET(r, -EINVAL, -EBADSLT)) |
2409 | *invalid_config = true; | |
4cef1923 | 2410 | return log_error_errno(r, "[%s:%u] Failed to replace specifiers: %s", fname, line, path); |
d9daae55 | 2411 | } |
1731e34a | 2412 | |
a2d1fb88 LP |
2413 | r = patch_var_run(fname, line, &i.path); |
2414 | if (r < 0) | |
2415 | return r; | |
2416 | ||
3f93da98 | 2417 | switch (i.type) { |
468d726b | 2418 | |
777b87e7 | 2419 | case CREATE_DIRECTORY: |
d7b8eec7 | 2420 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
2421 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
2422 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
df8dee85 | 2423 | case EMPTY_DIRECTORY: |
777b87e7 MS |
2424 | case TRUNCATE_DIRECTORY: |
2425 | case CREATE_FIFO: | |
2426 | case IGNORE_PATH: | |
78a92a5a | 2427 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
2428 | case REMOVE_PATH: |
2429 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 2430 | case ADJUST_MODE: |
777b87e7 MS |
2431 | case RELABEL_PATH: |
2432 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 2433 | if (i.argument) |
bd550f78 | 2434 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
2435 | |
2436 | break; | |
2437 | ||
2438 | case CREATE_FILE: | |
2439 | case TRUNCATE_FILE: | |
777b87e7 | 2440 | break; |
468d726b LP |
2441 | |
2442 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
2443 | if (!i.argument) { |
2444 | i.argument = strappend("/usr/share/factory/", i.path); | |
2445 | if (!i.argument) | |
2f3b873a | 2446 | return log_oom(); |
468d726b LP |
2447 | } |
2448 | break; | |
2449 | ||
31ed59c5 | 2450 | case WRITE_FILE: |
3f93da98 | 2451 | if (!i.argument) { |
d9daae55 | 2452 | *invalid_config = true; |
31ed59c5 | 2453 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 2454 | return -EBADMSG; |
31ed59c5 LP |
2455 | } |
2456 | break; | |
2457 | ||
849958d1 | 2458 | case COPY_FILES: |
3f93da98 ZJS |
2459 | if (!i.argument) { |
2460 | i.argument = strappend("/usr/share/factory/", i.path); | |
2461 | if (!i.argument) | |
2f3b873a | 2462 | return log_oom(); |
3f93da98 | 2463 | } else if (!path_is_absolute(i.argument)) { |
d9daae55 | 2464 | *invalid_config = true; |
849958d1 LP |
2465 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
2466 | return -EBADMSG; | |
2467 | } | |
2468 | ||
858d36c1 | 2469 | path_simplify(i.argument, false); |
849958d1 LP |
2470 | break; |
2471 | ||
468d726b LP |
2472 | case CREATE_CHAR_DEVICE: |
2473 | case CREATE_BLOCK_DEVICE: { | |
2474 | unsigned major, minor; | |
2475 | ||
3f93da98 | 2476 | if (!i.argument) { |
d9daae55 | 2477 | *invalid_config = true; |
468d726b | 2478 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 2479 | return -EBADMSG; |
468d726b LP |
2480 | } |
2481 | ||
3f93da98 | 2482 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
d9daae55 | 2483 | *invalid_config = true; |
3f93da98 | 2484 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); |
7f2c1f4d | 2485 | return -EBADMSG; |
468d726b LP |
2486 | } |
2487 | ||
3f93da98 | 2488 | i.major_minor = makedev(major, minor); |
468d726b LP |
2489 | break; |
2490 | } | |
2491 | ||
ebf4e801 | 2492 | case SET_XATTR: |
b705ab6a | 2493 | case RECURSIVE_SET_XATTR: |
3f93da98 | 2494 | if (!i.argument) { |
d9daae55 | 2495 | *invalid_config = true; |
ebf4e801 MW |
2496 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
2497 | return -EBADMSG; | |
2498 | } | |
bd550f78 | 2499 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
2500 | if (r < 0) |
2501 | return r; | |
2502 | break; | |
2503 | ||
f8eeeaf9 | 2504 | case SET_ACL: |
b705ab6a | 2505 | case RECURSIVE_SET_ACL: |
f8eeeaf9 | 2506 | if (!i.argument) { |
d9daae55 | 2507 | *invalid_config = true; |
f8eeeaf9 ZJS |
2508 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); |
2509 | return -EBADMSG; | |
2510 | } | |
bd550f78 | 2511 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
2512 | if (r < 0) |
2513 | return r; | |
2514 | break; | |
2515 | ||
88ec4dfa LP |
2516 | case SET_ATTRIBUTE: |
2517 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 2518 | if (!i.argument) { |
d9daae55 | 2519 | *invalid_config = true; |
88ec4dfa | 2520 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
2521 | return -EBADMSG; |
2522 | } | |
bd550f78 | 2523 | r = parse_attribute_from_arg(&i); |
751223fe | 2524 | if (IN_SET(r, -EINVAL, -EBADSLT)) |
d9daae55 | 2525 | *invalid_config = true; |
22c3a6ca GB |
2526 | if (r < 0) |
2527 | return r; | |
2528 | break; | |
2529 | ||
777b87e7 | 2530 | default: |
582deb84 | 2531 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
d9daae55 | 2532 | *invalid_config = true; |
7f2c1f4d | 2533 | return -EBADMSG; |
3b63d2d3 | 2534 | } |
468d726b | 2535 | |
3f93da98 ZJS |
2536 | if (!path_is_absolute(i.path)) { |
2537 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
d9daae55 | 2538 | *invalid_config = true; |
7f2c1f4d | 2539 | return -EBADMSG; |
3b63d2d3 LP |
2540 | } |
2541 | ||
858d36c1 | 2542 | path_simplify(i.path, false); |
3b63d2d3 | 2543 | |
3f93da98 | 2544 | if (!should_include_path(i.path)) |
7f2c1f4d | 2545 | return 0; |
5008d581 | 2546 | |
4cef1923 | 2547 | r = specifier_expansion_from_arg(&i); |
5a8575ef | 2548 | if (r == -ENXIO) |
4cef1923 | 2549 | return log_unresolvable_specifier(fname, line); |
751223fe ZJS |
2550 | if (r < 0) { |
2551 | if (IN_SET(r, -EINVAL, -EBADSLT)) | |
2552 | *invalid_config = true; | |
4cef1923 FB |
2553 | return log_error_errno(r, "[%s:%u] Failed to substitute specifiers in argument: %m", |
2554 | fname, line); | |
751223fe | 2555 | } |
4cef1923 | 2556 | |
cf9a4abd | 2557 | if (arg_root) { |
cde684a2 LP |
2558 | char *p; |
2559 | ||
1d13f648 | 2560 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
2561 | if (!p) |
2562 | return log_oom(); | |
2563 | ||
3f93da98 ZJS |
2564 | free(i.path); |
2565 | i.path = p; | |
cf9a4abd MM |
2566 | } |
2567 | ||
90937fe3 | 2568 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
2569 | const char *u = user; |
2570 | ||
3f93da98 | 2571 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 2572 | if (r < 0) { |
d9daae55 ZJS |
2573 | *invalid_config = true; |
2574 | return log_error_errno(r, "[%s:%u] Unknown user '%s'.", fname, line, user); | |
3b63d2d3 LP |
2575 | } |
2576 | ||
3f93da98 | 2577 | i.uid_set = true; |
3b63d2d3 LP |
2578 | } |
2579 | ||
90937fe3 | 2580 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
2581 | const char *g = group; |
2582 | ||
3f93da98 | 2583 | r = get_group_creds(&g, &i.gid); |
4b67834e | 2584 | if (r < 0) { |
d9daae55 | 2585 | *invalid_config = true; |
3b63d2d3 | 2586 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 2587 | return r; |
3b63d2d3 LP |
2588 | } |
2589 | ||
3f93da98 | 2590 | i.gid_set = true; |
3b63d2d3 LP |
2591 | } |
2592 | ||
90937fe3 | 2593 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 2594 | const char *mm = mode; |
3b63d2d3 LP |
2595 | unsigned m; |
2596 | ||
abef3f91 | 2597 | if (*mm == '~') { |
3f93da98 | 2598 | i.mask_perms = true; |
abef3f91 LP |
2599 | mm++; |
2600 | } | |
2601 | ||
2ff7b0a5 | 2602 | if (parse_mode(mm, &m) < 0) { |
d9daae55 | 2603 | *invalid_config = true; |
3b63d2d3 | 2604 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2605 | return -EBADMSG; |
3b63d2d3 LP |
2606 | } |
2607 | ||
3f93da98 ZJS |
2608 | i.mode = m; |
2609 | i.mode_set = true; | |
3b63d2d3 | 2610 | } else |
5fb13eb5 | 2611 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2612 | |
90937fe3 | 2613 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2614 | const char *a = age; |
2615 | ||
2616 | if (*a == '~') { | |
3f93da98 | 2617 | i.keep_first_level = true; |
24f3a374 LP |
2618 | a++; |
2619 | } | |
2620 | ||
3f93da98 | 2621 | if (parse_sec(a, &i.age) < 0) { |
d9daae55 | 2622 | *invalid_config = true; |
3b63d2d3 | 2623 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2624 | return -EBADMSG; |
3b63d2d3 LP |
2625 | } |
2626 | ||
3f93da98 | 2627 | i.age_set = true; |
3b63d2d3 LP |
2628 | } |
2629 | ||
3f93da98 | 2630 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2631 | |
ef43a391 | 2632 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2633 | if (existing) { |
3f93da98 ZJS |
2634 | unsigned n; |
2635 | ||
2636 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2637 | if (!item_compatible(existing->items + n, &i)) { |
e286dbaf ZJS |
2638 | log_notice("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
2639 | fname, line, i.path); | |
6487ada8 MP |
2640 | return 0; |
2641 | } | |
ebf4e801 MW |
2642 | } |
2643 | } else { | |
3f93da98 | 2644 | existing = new0(ItemArray, 1); |
07982ed1 LP |
2645 | if (!existing) |
2646 | return log_oom(); | |
2647 | ||
ef43a391 | 2648 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2649 | if (r < 0) |
2650 | return log_oom(); | |
bfe95f35 LP |
2651 | } |
2652 | ||
3f93da98 ZJS |
2653 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2654 | return log_oom(); | |
5008d581 | 2655 | |
3f93da98 | 2656 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2657 | |
2658 | /* Sort item array, to enforce stable ordering of application */ | |
2659 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2660 | |
3f93da98 | 2661 | zero(i); |
7f2c1f4d | 2662 | return 0; |
5008d581 LP |
2663 | } |
2664 | ||
ceaaeb9b ZJS |
2665 | static int cat_config(char **config_dirs, char **args) { |
2666 | _cleanup_strv_free_ char **files = NULL; | |
2667 | int r; | |
2668 | ||
2669 | r = conf_files_list_with_replacement(arg_root, config_dirs, arg_replace, &files, NULL); | |
2670 | if (r < 0) | |
2671 | return r; | |
2672 | ||
2673 | return cat_files(NULL, files, 0); | |
2674 | } | |
2675 | ||
601185b4 | 2676 | static void help(void) { |
522d4a49 LP |
2677 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2678 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2679 | " -h --help Show this help\n" |
f2b5ca0e | 2680 | " --user Execute user configuration\n" |
eb9da376 | 2681 | " --version Show package version\n" |
ceaaeb9b | 2682 | " --cat-config Show configuration files\n" |
5c795114 DR |
2683 | " --create Create marked files/directories\n" |
2684 | " --clean Clean up marked directories\n" | |
2685 | " --remove Remove marked files/directories\n" | |
81815651 | 2686 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2687 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2688 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
d9daae55 | 2689 | " --root=PATH Operate on an alternate filesystem root\n" |
a6d8474f | 2690 | " --replace=PATH Treat arguments as replacement for PATH\n" |
dcd5c891 | 2691 | " --no-pager Do not pipe output into a pager\n" |
d9daae55 | 2692 | , program_invocation_short_name); |
3b63d2d3 LP |
2693 | } |
2694 | ||
2695 | static int parse_argv(int argc, char *argv[]) { | |
2696 | ||
2697 | enum { | |
eb9da376 | 2698 | ARG_VERSION = 0x100, |
ceaaeb9b | 2699 | ARG_CAT_CONFIG, |
f2b5ca0e | 2700 | ARG_USER, |
3b63d2d3 LP |
2701 | ARG_CREATE, |
2702 | ARG_CLEAN, | |
fba6e687 | 2703 | ARG_REMOVE, |
81815651 | 2704 | ARG_BOOT, |
5c795114 DR |
2705 | ARG_PREFIX, |
2706 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2707 | ARG_ROOT, |
a6d8474f | 2708 | ARG_REPLACE, |
dcd5c891 | 2709 | ARG_NO_PAGER, |
3b63d2d3 LP |
2710 | }; |
2711 | ||
2712 | static const struct option options[] = { | |
5c795114 | 2713 | { "help", no_argument, NULL, 'h' }, |
f2b5ca0e | 2714 | { "user", no_argument, NULL, ARG_USER }, |
eb9da376 | 2715 | { "version", no_argument, NULL, ARG_VERSION }, |
ceaaeb9b | 2716 | { "cat-config", no_argument, NULL, ARG_CAT_CONFIG }, |
5c795114 DR |
2717 | { "create", no_argument, NULL, ARG_CREATE }, |
2718 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2719 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2720 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2721 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2722 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2723 | { "root", required_argument, NULL, ARG_ROOT }, |
a6d8474f | 2724 | { "replace", required_argument, NULL, ARG_REPLACE }, |
dcd5c891 | 2725 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
eb9da376 | 2726 | {} |
3b63d2d3 LP |
2727 | }; |
2728 | ||
0f474365 | 2729 | int c, r; |
3b63d2d3 LP |
2730 | |
2731 | assert(argc >= 0); | |
2732 | assert(argv); | |
2733 | ||
601185b4 | 2734 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2735 | |
2736 | switch (c) { | |
2737 | ||
2738 | case 'h': | |
601185b4 ZJS |
2739 | help(); |
2740 | return 0; | |
eb9da376 LP |
2741 | |
2742 | case ARG_VERSION: | |
3f6fd1ba | 2743 | return version(); |
3b63d2d3 | 2744 | |
ceaaeb9b ZJS |
2745 | case ARG_CAT_CONFIG: |
2746 | arg_cat_config = true; | |
2747 | break; | |
2748 | ||
f2b5ca0e ZJS |
2749 | case ARG_USER: |
2750 | arg_user = true; | |
2751 | break; | |
2752 | ||
3b63d2d3 LP |
2753 | case ARG_CREATE: |
2754 | arg_create = true; | |
2755 | break; | |
2756 | ||
2757 | case ARG_CLEAN: | |
2758 | arg_clean = true; | |
2759 | break; | |
2760 | ||
2761 | case ARG_REMOVE: | |
2762 | arg_remove = true; | |
2763 | break; | |
2764 | ||
81815651 ZJS |
2765 | case ARG_BOOT: |
2766 | arg_boot = true; | |
c4708f13 ZJS |
2767 | break; |
2768 | ||
fba6e687 | 2769 | case ARG_PREFIX: |
7bc040fa | 2770 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2771 | return log_oom(); |
fba6e687 LP |
2772 | break; |
2773 | ||
5c795114 | 2774 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2775 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2776 | return log_oom(); |
2777 | break; | |
2778 | ||
cf9a4abd | 2779 | case ARG_ROOT: |
0f03c2a4 | 2780 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 2781 | if (r < 0) |
0f03c2a4 | 2782 | return r; |
cf9a4abd MM |
2783 | break; |
2784 | ||
a6d8474f ZJS |
2785 | case ARG_REPLACE: |
2786 | if (!path_is_absolute(optarg) || | |
2787 | !endswith(optarg, ".conf")) { | |
2788 | log_error("The argument to --replace= must an absolute path to a config file"); | |
2789 | return -EINVAL; | |
2790 | } | |
2791 | ||
2792 | arg_replace = optarg; | |
2793 | break; | |
2794 | ||
dcd5c891 LP |
2795 | case ARG_NO_PAGER: |
2796 | arg_no_pager = true; | |
2797 | break; | |
2798 | ||
3b63d2d3 LP |
2799 | case '?': |
2800 | return -EINVAL; | |
2801 | ||
2802 | default: | |
eb9da376 | 2803 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2804 | } |
3b63d2d3 | 2805 | |
ceaaeb9b | 2806 | if (!arg_clean && !arg_create && !arg_remove && !arg_cat_config) { |
35b8ca3a | 2807 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2808 | return -EINVAL; |
2809 | } | |
2810 | ||
ceaaeb9b ZJS |
2811 | if (arg_replace && arg_cat_config) { |
2812 | log_error("Option --replace= is not supported with --cat-config"); | |
2813 | return -EINVAL; | |
2814 | } | |
2815 | ||
a6d8474f ZJS |
2816 | if (arg_replace && optind >= argc) { |
2817 | log_error("When --replace= is given, some configuration items must be specified"); | |
2818 | return -EINVAL; | |
2819 | } | |
2820 | ||
3b63d2d3 LP |
2821 | return 1; |
2822 | } | |
2823 | ||
a6d8474f | 2824 | static int read_config_file(char **config_dirs, const char *fn, bool ignore_enoent, bool *invalid_config) { |
f7ac1ed2 ZJS |
2825 | _cleanup_fclose_ FILE *_f = NULL; |
2826 | FILE *f; | |
1731e34a | 2827 | char line[LINE_MAX]; |
78a92a5a | 2828 | Iterator iterator; |
1731e34a | 2829 | unsigned v = 0; |
78a92a5a | 2830 | Item *i; |
4e68ec18 | 2831 | int r = 0; |
fba6e687 LP |
2832 | |
2833 | assert(fn); | |
2834 | ||
f7ac1ed2 | 2835 | if (streq(fn, "-")) { |
a6d8474f | 2836 | log_debug("Reading config from stdin…"); |
f7ac1ed2 ZJS |
2837 | fn = "<stdin>"; |
2838 | f = stdin; | |
2839 | } else { | |
a6d8474f | 2840 | r = search_and_fopen(fn, "re", arg_root, (const char**) config_dirs, &_f); |
f7ac1ed2 ZJS |
2841 | if (r < 0) { |
2842 | if (ignore_enoent && r == -ENOENT) { | |
2843 | log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn); | |
2844 | return 0; | |
2845 | } | |
fba6e687 | 2846 | |
f7ac1ed2 ZJS |
2847 | return log_error_errno(r, "Failed to open '%s': %m", fn); |
2848 | } | |
a6d8474f | 2849 | log_debug("Reading config file \"%s\"…", fn); |
f7ac1ed2 | 2850 | f = _f; |
fba6e687 LP |
2851 | } |
2852 | ||
1731e34a LP |
2853 | FOREACH_LINE(line, f, break) { |
2854 | char *l; | |
fba6e687 | 2855 | int k; |
d9daae55 | 2856 | bool invalid_line = false; |
fba6e687 | 2857 | |
fba6e687 LP |
2858 | v++; |
2859 | ||
2860 | l = strstrip(line); | |
4c701096 | 2861 | if (IN_SET(*l, 0, '#')) |
fba6e687 LP |
2862 | continue; |
2863 | ||
d9daae55 ZJS |
2864 | k = parse_line(fn, v, l, &invalid_line); |
2865 | if (k < 0) { | |
2866 | if (invalid_line) | |
2867 | /* Allow reporting with a special code if the caller requested this */ | |
2868 | *invalid_config = true; | |
2869 | else if (r == 0) | |
2870 | /* The first error becomes our return value */ | |
2871 | r = k; | |
2872 | } | |
fba6e687 LP |
2873 | } |
2874 | ||
78a92a5a | 2875 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2876 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2877 | Iterator iter; |
2878 | Item *j, *candidate_item = NULL; | |
2879 | ||
2880 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2881 | continue; | |
2882 | ||
ef43a391 | 2883 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2884 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2885 | continue; |
2886 | ||
2887 | if (path_equal(j->path, i->path)) { | |
2888 | candidate_item = j; | |
2889 | break; | |
2890 | } | |
2891 | ||
2892 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2893 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2894 | candidate_item = j; | |
2895 | } | |
2896 | ||
9ed2a35e | 2897 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2898 | i->age = candidate_item->age; |
2899 | i->age_set = true; | |
2900 | } | |
2901 | } | |
2902 | ||
fba6e687 | 2903 | if (ferror(f)) { |
56f64d95 | 2904 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2905 | if (r == 0) |
2906 | r = -EIO; | |
2907 | } | |
2908 | ||
fba6e687 LP |
2909 | return r; |
2910 | } | |
2911 | ||
a6d8474f ZJS |
2912 | static int parse_arguments(char **config_dirs, char **args, bool *invalid_config) { |
2913 | char **arg; | |
2914 | int r; | |
2915 | ||
2916 | STRV_FOREACH(arg, args) { | |
2917 | r = read_config_file(config_dirs, *arg, false, invalid_config); | |
2918 | if (r < 0) | |
2919 | return r; | |
2920 | } | |
2921 | ||
2922 | return 0; | |
2923 | } | |
2924 | ||
2925 | static int read_config_files(char **config_dirs, char **args, bool *invalid_config) { | |
2926 | _cleanup_strv_free_ char **files = NULL; | |
2927 | _cleanup_free_ char *p = NULL; | |
2928 | char **f; | |
2929 | int r; | |
2930 | ||
ceaaeb9b | 2931 | r = conf_files_list_with_replacement(arg_root, config_dirs, arg_replace, &files, &p); |
a6d8474f | 2932 | if (r < 0) |
ceaaeb9b | 2933 | return r; |
a6d8474f ZJS |
2934 | |
2935 | STRV_FOREACH(f, files) | |
2936 | if (p && path_equal(*f, p)) { | |
2937 | log_debug("Parsing arguments at position \"%s\"…", *f); | |
2938 | ||
2939 | r = parse_arguments(config_dirs, args, invalid_config); | |
2940 | if (r < 0) | |
2941 | return r; | |
2942 | } else | |
2943 | /* Just warn, ignore result otherwise. | |
2944 | * read_config_file() has some debug output, so no need to print anything. */ | |
2945 | (void) read_config_file(config_dirs, *f, true, invalid_config); | |
2946 | ||
2947 | return 0; | |
2948 | } | |
2949 | ||
5008d581 | 2950 | int main(int argc, char *argv[]) { |
bb9947be | 2951 | int r, k, r_process = 0; |
3f93da98 | 2952 | ItemArray *a; |
3b63d2d3 | 2953 | Iterator iterator; |
f2b5ca0e | 2954 | _cleanup_strv_free_ char **config_dirs = NULL; |
d9daae55 | 2955 | bool invalid_config = false; |
3b63d2d3 | 2956 | |
fdcad0c2 LP |
2957 | r = parse_argv(argc, argv); |
2958 | if (r <= 0) | |
753615e8 | 2959 | goto finish; |
5008d581 | 2960 | |
eb0ca9eb | 2961 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2962 | log_parse_environment(); |
2963 | log_open(); | |
2964 | ||
f2b5ca0e ZJS |
2965 | if (arg_user) { |
2966 | r = user_config_paths(&config_dirs); | |
2967 | if (r < 0) { | |
2968 | log_error_errno(r, "Failed to initialize configuration directory list: %m"); | |
2969 | goto finish; | |
2970 | } | |
2971 | } else { | |
2972 | config_dirs = strv_split_nulstr(CONF_PATHS_NULSTR("tmpfiles.d")); | |
2973 | if (!config_dirs) { | |
2974 | r = log_oom(); | |
2975 | goto finish; | |
2976 | } | |
2977 | } | |
2978 | ||
79c91cec | 2979 | if (DEBUG_LOGGING) { |
f2b5ca0e ZJS |
2980 | _cleanup_free_ char *t = NULL; |
2981 | ||
2982 | t = strv_join(config_dirs, "\n\t"); | |
2983 | if (t) | |
bb9947be | 2984 | log_debug("Looking for configuration files in (higher priority first):\n\t%s", t); |
f2b5ca0e ZJS |
2985 | } |
2986 | ||
ceaaeb9b | 2987 | if (arg_cat_config) { |
dcd5c891 LP |
2988 | (void) pager_open(arg_no_pager, false); |
2989 | ||
ceaaeb9b ZJS |
2990 | r = cat_config(config_dirs, argv + optind); |
2991 | goto finish; | |
2992 | } | |
2993 | ||
2994 | umask(0022); | |
2995 | ||
2996 | mac_selinux_init(); | |
2997 | ||
2998 | items = ordered_hashmap_new(&string_hash_ops); | |
2999 | globs = ordered_hashmap_new(&string_hash_ops); | |
3000 | ||
3001 | if (!items || !globs) { | |
3002 | r = log_oom(); | |
3003 | goto finish; | |
3004 | } | |
3005 | ||
a6d8474f ZJS |
3006 | /* If command line arguments are specified along with --replace, read all |
3007 | * configuration files and insert the positional arguments at the specified | |
3008 | * place. Otherwise, if command line arguments are specified, execute just | |
3009 | * them, and finally, without --replace= or any positional arguments, just | |
3010 | * read configuration and execute it. | |
3011 | */ | |
3012 | if (arg_replace || optind >= argc) | |
3013 | r = read_config_files(config_dirs, argv + optind, &invalid_config); | |
3014 | else | |
3015 | r = parse_arguments(config_dirs, argv + optind, &invalid_config); | |
3016 | if (r < 0) | |
3017 | goto finish; | |
5008d581 | 3018 | |
17493fa5 LP |
3019 | /* The non-globbing ones usually create things, hence we apply |
3020 | * them first */ | |
ef43a391 | 3021 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 3022 | k = process_item_array(a); |
bb9947be ZJS |
3023 | if (k < 0 && r_process == 0) |
3024 | r_process = k; | |
1db50423 | 3025 | } |
b8bb3e8f | 3026 | |
17493fa5 LP |
3027 | /* The globbing ones usually alter things, hence we apply them |
3028 | * second. */ | |
ef43a391 | 3029 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 3030 | k = process_item_array(a); |
bb9947be ZJS |
3031 | if (k < 0 && r_process == 0) |
3032 | r_process = k; | |
1db50423 | 3033 | } |
3b63d2d3 | 3034 | |
5008d581 | 3035 | finish: |
dcd5c891 LP |
3036 | pager_close(); |
3037 | ||
224b0e7a ZJS |
3038 | ordered_hashmap_free_with_destructor(items, item_array_free); |
3039 | ordered_hashmap_free_with_destructor(globs, item_array_free); | |
5008d581 | 3040 | |
7bc040fa LP |
3041 | free(arg_include_prefixes); |
3042 | free(arg_exclude_prefixes); | |
cf9a4abd | 3043 | free(arg_root); |
a2aced4a | 3044 | |
17b90525 LP |
3045 | set_free_free(unix_sockets); |
3046 | ||
cc56fafe | 3047 | mac_selinux_finish(); |
29003cff | 3048 | |
bb9947be | 3049 | if (r < 0 || ERRNO_IS_RESOURCE(-r_process)) |
d9daae55 ZJS |
3050 | return EXIT_FAILURE; |
3051 | else if (invalid_config) | |
3052 | return EX_DATAERR; | |
bb9947be ZJS |
3053 | else if (r_process < 0) |
3054 | return EX_CANTCREAT; | |
d9daae55 ZJS |
3055 | else |
3056 | return EXIT_SUCCESS; | |
5008d581 | 3057 | } |