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5008d581 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
3b63d2d3 | 6 | Copyright 2010 Lennart Poettering, Kay Sievers |
3f93da98 | 7 | Copyright 2015 Zbigniew Jędrzejewski-Szmek |
5008d581 LP |
8 | |
9 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
10 | under the terms of the GNU Lesser General Public License as published by |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
5008d581 LP |
12 | (at your option) any later version. |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 17 | Lesser General Public License for more details. |
5008d581 | 18 | |
5430f7f2 | 19 | You should have received a copy of the GNU Lesser General Public License |
5008d581 LP |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
21 | ***/ | |
22 | ||
23 | #include <unistd.h> | |
24 | #include <fcntl.h> | |
25 | #include <errno.h> | |
26 | #include <string.h> | |
5008d581 LP |
27 | #include <limits.h> |
28 | #include <dirent.h> | |
3b63d2d3 LP |
29 | #include <stdio.h> |
30 | #include <stdlib.h> | |
31 | #include <stddef.h> | |
32 | #include <getopt.h> | |
33 | #include <stdbool.h> | |
34 | #include <time.h> | |
b8bb3e8f LP |
35 | #include <glob.h> |
36 | #include <fnmatch.h> | |
505ef0e3 | 37 | #include <sys/stat.h> |
ebf4e801 | 38 | #include <sys/xattr.h> |
22c3a6ca | 39 | #include <linux/fs.h> |
5008d581 LP |
40 | |
41 | #include "log.h" | |
42 | #include "util.h" | |
54693d9b | 43 | #include "macro.h" |
d39efe74 | 44 | #include "missing.h" |
49e942b2 | 45 | #include "mkdir.h" |
9eb977db | 46 | #include "path-util.h" |
5008d581 LP |
47 | #include "strv.h" |
48 | #include "label.h" | |
3b63d2d3 | 49 | #include "set.h" |
2c21044f | 50 | #include "conf-files.h" |
cb7ed9df | 51 | #include "capability.h" |
1731e34a | 52 | #include "specifier.h" |
eb9da376 | 53 | #include "build.h" |
849958d1 | 54 | #include "copy.h" |
c6878637 | 55 | #include "rm-rf.h" |
d7b8eec7 LP |
56 | #include "selinux-util.h" |
57 | #include "btrfs-util.h" | |
f8eeeaf9 | 58 | #include "acl-util.h" |
6482f626 | 59 | #include "formats-util.h" |
5008d581 | 60 | |
01000479 | 61 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 62 | * them in the file system. This is intended to be used to create |
db019b8d KS |
63 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
64 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 65 | |
66ccd038 | 66 | typedef enum ItemType { |
b8bb3e8f | 67 | /* These ones take file names */ |
3b63d2d3 LP |
68 | CREATE_FILE = 'f', |
69 | TRUNCATE_FILE = 'F', | |
70 | CREATE_DIRECTORY = 'd', | |
71 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 72 | CREATE_SUBVOLUME = 'v', |
ee17ee7c | 73 | CREATE_FIFO = 'p', |
468d726b LP |
74 | CREATE_SYMLINK = 'L', |
75 | CREATE_CHAR_DEVICE = 'c', | |
76 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 77 | COPY_FILES = 'C', |
b8bb3e8f LP |
78 | |
79 | /* These ones take globs */ | |
17493fa5 | 80 | WRITE_FILE = 'w', |
b705ab6a ZJS |
81 | SET_XATTR = 't', |
82 | RECURSIVE_SET_XATTR = 'T', | |
83 | SET_ACL = 'a', | |
84 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
85 | SET_ATTRIBUTE = 'h', |
86 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 87 | IGNORE_PATH = 'x', |
78a92a5a | 88 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 89 | REMOVE_PATH = 'r', |
a8d88783 | 90 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 91 | RELABEL_PATH = 'z', |
e73a03e0 | 92 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 93 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 94 | } ItemType; |
3b63d2d3 LP |
95 | |
96 | typedef struct Item { | |
66ccd038 | 97 | ItemType type; |
3b63d2d3 LP |
98 | |
99 | char *path; | |
468d726b | 100 | char *argument; |
ebf4e801 | 101 | char **xattrs; |
f8eeeaf9 ZJS |
102 | #ifdef HAVE_ACL |
103 | acl_t acl_access; | |
104 | acl_t acl_default; | |
105 | #endif | |
5008d581 LP |
106 | uid_t uid; |
107 | gid_t gid; | |
3b63d2d3 LP |
108 | mode_t mode; |
109 | usec_t age; | |
110 | ||
468d726b | 111 | dev_t major_minor; |
88ec4dfa LP |
112 | unsigned attribute_value; |
113 | unsigned attribute_mask; | |
468d726b | 114 | |
3b63d2d3 LP |
115 | bool uid_set:1; |
116 | bool gid_set:1; | |
117 | bool mode_set:1; | |
118 | bool age_set:1; | |
abef3f91 | 119 | bool mask_perms:1; |
88ec4dfa | 120 | bool attribute_set:1; |
24f3a374 LP |
121 | |
122 | bool keep_first_level:1; | |
1910cd0e | 123 | |
2e78fa79 LP |
124 | bool force:1; |
125 | ||
1910cd0e | 126 | bool done:1; |
3b63d2d3 LP |
127 | } Item; |
128 | ||
3f93da98 ZJS |
129 | typedef struct ItemArray { |
130 | Item *items; | |
131 | size_t count; | |
132 | size_t size; | |
133 | } ItemArray; | |
134 | ||
3b63d2d3 LP |
135 | static bool arg_create = false; |
136 | static bool arg_clean = false; | |
137 | static bool arg_remove = false; | |
81815651 | 138 | static bool arg_boot = false; |
3b63d2d3 | 139 | |
7bc040fa LP |
140 | static char **arg_include_prefixes = NULL; |
141 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 142 | static char *arg_root = NULL; |
fba6e687 | 143 | |
7f0a55d4 | 144 | static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles"); |
9125670f | 145 | |
3b63d2d3 LP |
146 | #define MAX_DEPTH 256 |
147 | ||
7bc040fa LP |
148 | static Hashmap *items = NULL, *globs = NULL; |
149 | static Set *unix_sockets = NULL; | |
150 | ||
bd550f78 LP |
151 | static const Specifier specifier_table[] = { |
152 | { 'm', specifier_machine_id, NULL }, | |
153 | { 'b', specifier_boot_id, NULL }, | |
154 | { 'H', specifier_host_name, NULL }, | |
155 | { 'v', specifier_kernel_release, NULL }, | |
156 | {} | |
157 | }; | |
158 | ||
66ccd038 | 159 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
160 | return IN_SET(t, |
161 | WRITE_FILE, | |
162 | IGNORE_PATH, | |
163 | IGNORE_DIRECTORY_PATH, | |
164 | REMOVE_PATH, | |
165 | RECURSIVE_REMOVE_PATH, | |
e73a03e0 | 166 | ADJUST_MODE, |
cde684a2 | 167 | RELABEL_PATH, |
b705ab6a ZJS |
168 | RECURSIVE_RELABEL_PATH, |
169 | SET_XATTR, | |
170 | RECURSIVE_SET_XATTR, | |
171 | SET_ACL, | |
34f64536 LP |
172 | RECURSIVE_SET_ACL, |
173 | SET_ATTRIBUTE, | |
174 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
175 | } |
176 | ||
3f93da98 ZJS |
177 | static bool takes_ownership(ItemType t) { |
178 | return IN_SET(t, | |
179 | CREATE_FILE, | |
180 | TRUNCATE_FILE, | |
181 | CREATE_DIRECTORY, | |
182 | TRUNCATE_DIRECTORY, | |
183 | CREATE_SUBVOLUME, | |
184 | CREATE_FIFO, | |
185 | CREATE_SYMLINK, | |
186 | CREATE_CHAR_DEVICE, | |
187 | CREATE_BLOCK_DEVICE, | |
188 | COPY_FILES, | |
3f93da98 ZJS |
189 | WRITE_FILE, |
190 | IGNORE_PATH, | |
191 | IGNORE_DIRECTORY_PATH, | |
192 | REMOVE_PATH, | |
193 | RECURSIVE_REMOVE_PATH); | |
194 | } | |
195 | ||
b8bb3e8f | 196 | static struct Item* find_glob(Hashmap *h, const char *match) { |
3f93da98 | 197 | ItemArray *j; |
b8bb3e8f LP |
198 | Iterator i; |
199 | ||
3f93da98 ZJS |
200 | HASHMAP_FOREACH(j, h, i) { |
201 | unsigned n; | |
202 | ||
203 | for (n = 0; n < j->count; n++) { | |
204 | Item *item = j->items + n; | |
205 | ||
206 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
207 | return item; | |
208 | } | |
209 | } | |
b8bb3e8f LP |
210 | |
211 | return NULL; | |
212 | } | |
213 | ||
17b90525 | 214 | static void load_unix_sockets(void) { |
7fd1b19b | 215 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
216 | char line[LINE_MAX]; |
217 | ||
218 | if (unix_sockets) | |
219 | return; | |
220 | ||
221 | /* We maintain a cache of the sockets we found in | |
222 | * /proc/net/unix to speed things up a little. */ | |
223 | ||
d5099efc | 224 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 225 | if (!unix_sockets) |
17b90525 LP |
226 | return; |
227 | ||
fdcad0c2 LP |
228 | f = fopen("/proc/net/unix", "re"); |
229 | if (!f) | |
17b90525 LP |
230 | return; |
231 | ||
fdcad0c2 LP |
232 | /* Skip header */ |
233 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
234 | goto fail; |
235 | ||
236 | for (;;) { | |
237 | char *p, *s; | |
238 | int k; | |
239 | ||
fdcad0c2 | 240 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
241 | break; |
242 | ||
243 | truncate_nl(line); | |
244 | ||
fdcad0c2 LP |
245 | p = strchr(line, ':'); |
246 | if (!p) | |
247 | continue; | |
248 | ||
249 | if (strlen(p) < 37) | |
17b90525 LP |
250 | continue; |
251 | ||
fdcad0c2 | 252 | p += 37; |
17b90525 | 253 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 254 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
255 | p += strspn(p, WHITESPACE); |
256 | ||
257 | if (*p != '/') | |
258 | continue; | |
259 | ||
fdcad0c2 LP |
260 | s = strdup(p); |
261 | if (!s) | |
17b90525 LP |
262 | goto fail; |
263 | ||
4ff21d85 LP |
264 | path_kill_slashes(s); |
265 | ||
ef42202a ZJS |
266 | k = set_consume(unix_sockets, s); |
267 | if (k < 0 && k != -EEXIST) | |
268 | goto fail; | |
17b90525 LP |
269 | } |
270 | ||
271 | return; | |
272 | ||
273 | fail: | |
274 | set_free_free(unix_sockets); | |
275 | unix_sockets = NULL; | |
17b90525 LP |
276 | } |
277 | ||
278 | static bool unix_socket_alive(const char *fn) { | |
279 | assert(fn); | |
280 | ||
281 | load_unix_sockets(); | |
282 | ||
283 | if (unix_sockets) | |
284 | return !!set_get(unix_sockets, (char*) fn); | |
285 | ||
286 | /* We don't know, so assume yes */ | |
287 | return true; | |
288 | } | |
289 | ||
99d680ac | 290 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 291 | |
2695c5c4 | 292 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
293 | int mount_id_parent, mount_id; |
294 | int r_p, r; | |
295 | ||
370c860f | 296 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
297 | if (r_p < 0) |
298 | r_p = -errno; | |
299 | ||
370c860f DR |
300 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
301 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
302 | if (r < 0) |
303 | r = -errno; | |
304 | ||
305 | /* got no handle; make no assumptions, return error */ | |
306 | if (r_p < 0 && r < 0) | |
307 | return r_p; | |
308 | ||
309 | /* got both handles; if they differ, it is a mount point */ | |
310 | if (r_p >= 0 && r >= 0) | |
311 | return mount_id_parent != mount_id; | |
312 | ||
313 | /* got only one handle; assume different mount points if one | |
314 | * of both queries was not supported by the filesystem */ | |
e7aab541 | 315 | if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
99d680ac KS |
316 | return true; |
317 | ||
318 | /* return error */ | |
319 | if (r_p < 0) | |
320 | return r_p; | |
321 | return r; | |
322 | } | |
323 | ||
df99a9ef ZJS |
324 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
325 | DIR *dir; | |
326 | ||
327 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
328 | if (dir) |
329 | return dir; | |
330 | ||
331 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
332 | if (errno != EPERM) | |
333 | return NULL; | |
334 | ||
335 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
336 | if (!dir) | |
337 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
338 | |
339 | return dir; | |
340 | } | |
341 | ||
342 | static DIR* opendir_nomod(const char *path) { | |
343 | return xopendirat_nomod(AT_FDCWD, path); | |
344 | } | |
345 | ||
3b63d2d3 | 346 | static int dir_cleanup( |
78a92a5a | 347 | Item *i, |
3b63d2d3 LP |
348 | const char *p, |
349 | DIR *d, | |
350 | const struct stat *ds, | |
351 | usec_t cutoff, | |
352 | dev_t rootdev, | |
353 | bool mountpoint, | |
24f3a374 | 354 | int maxdepth, |
265ffa1e LP |
355 | bool keep_this_level) { |
356 | ||
3b63d2d3 LP |
357 | struct dirent *dent; |
358 | struct timespec times[2]; | |
359 | bool deleted = false; | |
3b63d2d3 LP |
360 | int r = 0; |
361 | ||
362 | while ((dent = readdir(d))) { | |
363 | struct stat s; | |
364 | usec_t age; | |
7fd1b19b | 365 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 366 | |
7fcb4b9b | 367 | if (STR_IN_SET(dent->d_name, ".", "..")) |
3b63d2d3 | 368 | continue; |
5008d581 | 369 | |
3b63d2d3 | 370 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
371 | if (errno == ENOENT) |
372 | continue; | |
5008d581 | 373 | |
ca2f4176 KS |
374 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
375 | if (errno == EACCES) | |
56f64d95 | 376 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 377 | else |
56f64d95 | 378 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 379 | r = -errno; |
3b63d2d3 LP |
380 | continue; |
381 | } | |
382 | ||
383 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
384 | if (s.st_dev != rootdev) { |
385 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 386 | continue; |
582deb84 | 387 | } |
3b63d2d3 | 388 | |
99d680ac KS |
389 | /* Try to detect bind mounts of the same filesystem instance; they |
390 | * do not differ in device major/minors. This type of query is not | |
391 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
392 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
393 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
394 | p, dent->d_name); | |
99d680ac | 395 | continue; |
582deb84 | 396 | } |
99d680ac | 397 | |
3b63d2d3 | 398 | /* Do not delete read-only files owned by root */ |
582deb84 ZJS |
399 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
400 | log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); | |
3b63d2d3 | 401 | continue; |
582deb84 | 402 | } |
3b63d2d3 | 403 | |
cde684a2 LP |
404 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
405 | if (!sub_path) { | |
0d0f0c50 | 406 | r = log_oom(); |
3b63d2d3 LP |
407 | goto finish; |
408 | } | |
409 | ||
410 | /* Is there an item configured for this path? */ | |
582deb84 ZJS |
411 | if (hashmap_get(items, sub_path)) { |
412 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); | |
3b63d2d3 | 413 | continue; |
582deb84 | 414 | } |
3b63d2d3 | 415 | |
582deb84 ZJS |
416 | if (find_glob(globs, sub_path)) { |
417 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 418 | continue; |
582deb84 | 419 | } |
b8bb3e8f | 420 | |
3b63d2d3 LP |
421 | if (S_ISDIR(s.st_mode)) { |
422 | ||
423 | if (mountpoint && | |
424 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
425 | s.st_uid == 0) { |
426 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 427 | continue; |
582deb84 | 428 | } |
3b63d2d3 LP |
429 | |
430 | if (maxdepth <= 0) | |
582deb84 | 431 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 432 | else { |
7fd1b19b | 433 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
434 | int q; |
435 | ||
df99a9ef | 436 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 437 | if (!sub_dir) { |
582deb84 ZJS |
438 | if (errno != ENOENT) |
439 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
440 | |
441 | continue; | |
442 | } | |
443 | ||
78a92a5a | 444 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
445 | if (q < 0) |
446 | r = q; | |
447 | } | |
448 | ||
24f3a374 LP |
449 | /* Note: if you are wondering why we don't |
450 | * support the sticky bit for excluding | |
451 | * directories from cleaning like we do it for | |
452 | * other file system objects: well, the sticky | |
453 | * bit already has a meaning for directories, | |
454 | * so we don't want to overload that. */ | |
455 | ||
582deb84 ZJS |
456 | if (keep_this_level) { |
457 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 458 | continue; |
582deb84 | 459 | } |
24f3a374 | 460 | |
3b63d2d3 | 461 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
462 | age = timespec_load(&s.st_mtim); |
463 | if (age >= cutoff) { | |
464 | char a[FORMAT_TIMESTAMP_MAX]; | |
465 | /* Follows spelling in stat(1). */ | |
466 | log_debug("Directory \"%s\": modify time %s is too new.", | |
467 | sub_path, | |
468 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 469 | continue; |
582deb84 ZJS |
470 | } |
471 | ||
472 | age = timespec_load(&s.st_atim); | |
473 | if (age >= cutoff) { | |
474 | char a[FORMAT_TIMESTAMP_MAX]; | |
475 | log_debug("Directory \"%s\": access time %s is too new.", | |
476 | sub_path, | |
477 | format_timestamp_us(a, sizeof(a), age)); | |
478 | continue; | |
479 | } | |
3b63d2d3 | 480 | |
61253220 ZJS |
481 | log_debug("Removing directory \"%s\".", sub_path); |
482 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
483 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
484 | log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
485 | r = -errno; | |
3b63d2d3 | 486 | } |
3b63d2d3 LP |
487 | |
488 | } else { | |
9c73736d LP |
489 | /* Skip files for which the sticky bit is |
490 | * set. These are semantics we define, and are | |
491 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
492 | * specification for details. */ | |
582deb84 ZJS |
493 | if (s.st_mode & S_ISVTX) { |
494 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 495 | continue; |
582deb84 | 496 | } |
9c73736d | 497 | |
582deb84 ZJS |
498 | if (mountpoint && S_ISREG(s.st_mode)) |
499 | if ((streq(dent->d_name, ".journal") && s.st_uid == 0) || | |
500 | streq(dent->d_name, "aquota.user") || | |
501 | streq(dent->d_name, "aquota.group")) { | |
502 | log_debug("Skipping \"%s\".", sub_path); | |
3b63d2d3 | 503 | continue; |
582deb84 | 504 | } |
3b63d2d3 | 505 | |
17b90525 | 506 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
507 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
508 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 509 | continue; |
582deb84 | 510 | } |
17b90525 | 511 | |
78ab08eb | 512 | /* Ignore device nodes */ |
582deb84 ZJS |
513 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
514 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 515 | continue; |
582deb84 | 516 | } |
78ab08eb | 517 | |
24f3a374 LP |
518 | /* Keep files on this level around if this is |
519 | * requested */ | |
582deb84 ZJS |
520 | if (keep_this_level) { |
521 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 522 | continue; |
582deb84 | 523 | } |
24f3a374 | 524 | |
582deb84 ZJS |
525 | age = timespec_load(&s.st_mtim); |
526 | if (age >= cutoff) { | |
527 | char a[FORMAT_TIMESTAMP_MAX]; | |
528 | /* Follows spelling in stat(1). */ | |
529 | log_debug("File \"%s\": modify time %s is too new.", | |
530 | sub_path, | |
531 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 532 | continue; |
582deb84 | 533 | } |
3b63d2d3 | 534 | |
582deb84 ZJS |
535 | age = timespec_load(&s.st_atim); |
536 | if (age >= cutoff) { | |
537 | char a[FORMAT_TIMESTAMP_MAX]; | |
538 | log_debug("File \"%s\": access time %s is too new.", | |
539 | sub_path, | |
540 | format_timestamp_us(a, sizeof(a), age)); | |
541 | continue; | |
542 | } | |
3b63d2d3 | 543 | |
582deb84 ZJS |
544 | age = timespec_load(&s.st_ctim); |
545 | if (age >= cutoff) { | |
546 | char a[FORMAT_TIMESTAMP_MAX]; | |
547 | log_debug("File \"%s\": change time %s is too new.", | |
548 | sub_path, | |
549 | format_timestamp_us(a, sizeof(a), age)); | |
550 | continue; | |
3b63d2d3 LP |
551 | } |
552 | ||
582deb84 ZJS |
553 | log_debug("unlink \"%s\"", sub_path); |
554 | ||
555 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
556 | if (errno != ENOENT) | |
557 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
558 | ||
3b63d2d3 LP |
559 | deleted = true; |
560 | } | |
561 | } | |
562 | ||
563 | finish: | |
564 | if (deleted) { | |
582deb84 ZJS |
565 | usec_t age1, age2; |
566 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
567 | ||
3b63d2d3 LP |
568 | /* Restore original directory timestamps */ |
569 | times[0] = ds->st_atim; | |
570 | times[1] = ds->st_mtim; | |
571 | ||
582deb84 ZJS |
572 | age1 = timespec_load(&ds->st_atim); |
573 | age2 = timespec_load(&ds->st_mtim); | |
574 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
575 | p, | |
576 | format_timestamp_us(a, sizeof(a), age1), | |
577 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 578 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 579 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
580 | } |
581 | ||
3b63d2d3 LP |
582 | return r; |
583 | } | |
584 | ||
b705ab6a | 585 | static int path_set_perms(Item *i, const char *path) { |
48b8aaa8 | 586 | _cleanup_close_ int fd = -1; |
1924a97d | 587 | struct stat st; |
1924a97d | 588 | |
cde684a2 LP |
589 | assert(i); |
590 | assert(path); | |
591 | ||
48b8aaa8 LP |
592 | /* We open the file with O_PATH here, to make the operation |
593 | * somewhat atomic. Also there's unfortunately no fchmodat() | |
594 | * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via | |
595 | * O_PATH. */ | |
596 | ||
597 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); | |
598 | if (fd < 0) | |
599 | return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); | |
600 | ||
601 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
602 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1924a97d | 603 | |
48b8aaa8 LP |
604 | if (S_ISLNK(st.st_mode)) |
605 | log_debug("Skipping mode an owner fix for symlink %s.", path); | |
606 | else { | |
607 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; | |
608 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
abef3f91 | 609 | |
48b8aaa8 LP |
610 | /* not using i->path directly because it may be a glob */ |
611 | if (i->mode_set) { | |
612 | mode_t m = i->mode; | |
613 | ||
614 | if (i->mask_perms) { | |
615 | if (!(st.st_mode & 0111)) | |
616 | m &= ~0111; | |
617 | if (!(st.st_mode & 0222)) | |
1924a97d | 618 | m &= ~0222; |
48b8aaa8 LP |
619 | if (!(st.st_mode & 0444)) |
620 | m &= ~0444; | |
621 | if (!S_ISDIR(st.st_mode)) | |
622 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
623 | } | |
abef3f91 | 624 | |
48b8aaa8 LP |
625 | if (m == (st.st_mode & 07777)) |
626 | log_debug("\"%s\" has right mode %o", path, st.st_mode); | |
627 | else { | |
628 | log_debug("chmod \"%s\" to mode %o", path, m); | |
629 | if (chmod(fn, m) < 0) | |
630 | return log_error_errno(errno, "chmod(%s) failed: %m", path); | |
631 | } | |
062e01bb | 632 | } |
062e01bb | 633 | |
48b8aaa8 LP |
634 | if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
635 | (i->uid_set || i->gid_set)) { | |
636 | log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, | |
637 | path, | |
638 | i->uid_set ? i->uid : UID_INVALID, | |
639 | i->gid_set ? i->gid : GID_INVALID); | |
640 | if (chown(fn, | |
641 | i->uid_set ? i->uid : UID_INVALID, | |
642 | i->gid_set ? i->gid : GID_INVALID) < 0) | |
505ef0e3 | 643 | return log_error_errno(errno, "chown(%s) failed: %m", path); |
48b8aaa8 | 644 | } |
582deb84 | 645 | } |
062e01bb | 646 | |
48b8aaa8 LP |
647 | fd = safe_close(fd); |
648 | ||
9855d6c7 | 649 | return label_fix(path, false, false); |
062e01bb MS |
650 | } |
651 | ||
bd550f78 | 652 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
653 | const char *p; |
654 | int r; | |
655 | ||
656 | assert(i); | |
505ef0e3 | 657 | assert(i->argument); |
ebf4e801 | 658 | |
ebf4e801 MW |
659 | p = i->argument; |
660 | ||
4034a06d | 661 | for (;;) { |
bd550f78 | 662 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
4034a06d LP |
663 | |
664 | r = unquote_first_word(&p, &xattr, UNQUOTE_CUNESCAPE); | |
665 | if (r < 0) | |
bd550f78 | 666 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
667 | if (r <= 0) |
668 | break; | |
505ef0e3 | 669 | |
bd550f78 LP |
670 | r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
671 | if (r < 0) | |
672 | return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); | |
673 | ||
674 | r = split_pair(xattr_replaced, "=", &name, &value); | |
ebf4e801 | 675 | if (r < 0) { |
4034a06d | 676 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
677 | continue; |
678 | } | |
505ef0e3 | 679 | |
4034a06d | 680 | if (isempty(name) || isempty(value)) { |
bd550f78 | 681 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
682 | continue; |
683 | } | |
505ef0e3 | 684 | |
4034a06d | 685 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 686 | return log_oom(); |
505ef0e3 | 687 | |
4034a06d | 688 | name = value = NULL; |
ebf4e801 MW |
689 | } |
690 | ||
4034a06d | 691 | return 0; |
ebf4e801 MW |
692 | } |
693 | ||
b705ab6a | 694 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
695 | char **name, **value; |
696 | ||
697 | assert(i); | |
698 | assert(path); | |
699 | ||
ebf4e801 MW |
700 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
701 | int n; | |
505ef0e3 | 702 | |
ebf4e801 | 703 | n = strlen(*value); |
bd550f78 | 704 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
ebf4e801 | 705 | if (lsetxattr(path, *name, *value, n, 0) < 0) { |
bd550f78 | 706 | log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path); |
ebf4e801 MW |
707 | return -errno; |
708 | } | |
709 | } | |
710 | return 0; | |
711 | } | |
712 | ||
bd550f78 | 713 | static int parse_acls_from_arg(Item *item) { |
f8eeeaf9 ZJS |
714 | #ifdef HAVE_ACL |
715 | int r; | |
f8eeeaf9 ZJS |
716 | |
717 | assert(item); | |
718 | ||
50d9e46d ZJS |
719 | /* If force (= modify) is set, we will not modify the acl |
720 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 721 | |
50d9e46d | 722 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 723 | if (r < 0) |
4034a06d | 724 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
725 | #else |
726 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
727 | #endif | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
35888b67 | 732 | #ifdef HAVE_ACL |
48b8aaa8 LP |
733 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
734 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 735 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
736 | int r; |
737 | ||
d873e877 HPD |
738 | /* Returns 0 for success, positive error if already warned, |
739 | * negative error otherwise. */ | |
740 | ||
50d9e46d | 741 | if (modify) { |
dd4105b0 | 742 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
743 | if (r < 0) |
744 | return r; | |
50d9e46d | 745 | |
dd4105b0 ZJS |
746 | r = calc_acl_mask_if_needed(&dup); |
747 | if (r < 0) | |
748 | return r; | |
749 | } else { | |
750 | dup = acl_dup(acl); | |
751 | if (!dup) | |
752 | return -errno; | |
753 | ||
754 | /* the mask was already added earlier if needed */ | |
755 | } | |
756 | ||
757 | r = add_base_acls_if_needed(&dup, path); | |
758 | if (r < 0) | |
759 | return r; | |
760 | ||
582deb84 | 761 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 762 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 763 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 764 | strna(t), pretty); |
50d9e46d | 765 | |
582deb84 ZJS |
766 | r = acl_set_file(path, type, dup); |
767 | if (r < 0) | |
3ea40b78 LP |
768 | /* Return positive to indicate we already warned */ |
769 | return -log_error_errno(errno, | |
770 | "Setting %s ACL \"%s\" on %s failed: %m", | |
771 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 772 | strna(t), pretty); |
d873e877 | 773 | |
582deb84 | 774 | return 0; |
50d9e46d | 775 | } |
35888b67 | 776 | #endif |
50d9e46d | 777 | |
b705ab6a | 778 | static int path_set_acls(Item *item, const char *path) { |
d873e877 | 779 | int r = 0; |
f8eeeaf9 | 780 | #ifdef HAVE_ACL |
48b8aaa8 LP |
781 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
782 | _cleanup_close_ int fd = -1; | |
783 | struct stat st; | |
784 | ||
f8eeeaf9 ZJS |
785 | assert(item); |
786 | assert(path); | |
787 | ||
48b8aaa8 LP |
788 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); |
789 | if (fd < 0) | |
790 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
791 | ||
792 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
793 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
794 | ||
795 | if (S_ISLNK(st.st_mode)) { | |
796 | log_debug("Skipping ACL fix for symlink %s.", path); | |
797 | return 0; | |
798 | } | |
799 | ||
800 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
801 | ||
d873e877 | 802 | if (item->acl_access) |
48b8aaa8 | 803 | r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 804 | |
d873e877 | 805 | if (r == 0 && item->acl_default) |
48b8aaa8 | 806 | r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 807 | |
d873e877 HPD |
808 | if (r > 0) |
809 | return -r; /* already warned */ | |
15411c0c | 810 | else if (r == -EOPNOTSUPP) { |
d873e877 HPD |
811 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
812 | return 0; | |
813 | } else if (r < 0) | |
814 | log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
815 | #endif | |
816 | return r; | |
f8eeeaf9 ZJS |
817 | } |
818 | ||
88ec4dfa LP |
819 | #define ATTRIBUTES_ALL \ |
820 | (FS_NOATIME_FL | \ | |
821 | FS_SYNC_FL | \ | |
822 | FS_DIRSYNC_FL | \ | |
823 | FS_APPEND_FL | \ | |
824 | FS_COMPR_FL | \ | |
825 | FS_NODUMP_FL | \ | |
826 | FS_EXTENT_FL | \ | |
827 | FS_IMMUTABLE_FL | \ | |
828 | FS_JOURNAL_DATA_FL | \ | |
829 | FS_SECRM_FL | \ | |
830 | FS_UNRM_FL | \ | |
831 | FS_NOTAIL_FL | \ | |
832 | FS_TOPDIR_FL | \ | |
833 | FS_NOCOW_FL) | |
834 | ||
bd550f78 | 835 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
836 | |
837 | static const struct { | |
838 | char character; | |
839 | unsigned value; | |
840 | } attributes[] = { | |
841 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
842 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
843 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
844 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
845 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
846 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
847 | { 'e', FS_EXTENT_FL }, /* Top of directory hierarchies*/ | |
848 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ | |
849 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
850 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
851 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
852 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
853 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ | |
854 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ | |
22c3a6ca | 855 | }; |
88ec4dfa | 856 | |
22c3a6ca GB |
857 | enum { |
858 | MODE_ADD, | |
859 | MODE_DEL, | |
860 | MODE_SET | |
861 | } mode = MODE_ADD; | |
22c3a6ca | 862 | |
88ec4dfa LP |
863 | unsigned value = 0, mask = 0; |
864 | const char *p; | |
22c3a6ca | 865 | |
88ec4dfa LP |
866 | assert(item); |
867 | ||
868 | p = item->argument; | |
869 | if (p) { | |
870 | if (*p == '+') { | |
871 | mode = MODE_ADD; | |
872 | p++; | |
873 | } else if (*p == '-') { | |
874 | mode = MODE_DEL; | |
875 | p++; | |
876 | } else if (*p == '=') { | |
877 | mode = MODE_SET; | |
878 | p++; | |
879 | } | |
22c3a6ca GB |
880 | } |
881 | ||
88ec4dfa LP |
882 | if (isempty(p) && mode != MODE_SET) { |
883 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
884 | return -EINVAL; |
885 | } | |
88ec4dfa LP |
886 | |
887 | for (; p && *p ; p++) { | |
888 | unsigned i, v; | |
889 | ||
890 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
891 | if (*p == attributes[i].character) | |
892 | break; | |
893 | ||
894 | if (i >= ELEMENTSOF(attributes)) { | |
895 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
896 | return -EINVAL; |
897 | } | |
88ec4dfa LP |
898 | |
899 | v = attributes[i].value; | |
900 | ||
22c3a6ca | 901 | if (mode == MODE_ADD || mode == MODE_SET) |
88ec4dfa | 902 | value |= v; |
22c3a6ca | 903 | else |
88ec4dfa LP |
904 | value &= ~v; |
905 | ||
906 | mask |= v; | |
22c3a6ca GB |
907 | } |
908 | ||
909 | if (mode == MODE_SET) | |
88ec4dfa | 910 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 911 | |
88ec4dfa | 912 | assert(mask != 0); |
22c3a6ca | 913 | |
88ec4dfa LP |
914 | item->attribute_mask = mask; |
915 | item->attribute_value = value; | |
916 | item->attribute_set = true; | |
22c3a6ca GB |
917 | |
918 | return 0; | |
22c3a6ca GB |
919 | } |
920 | ||
88ec4dfa | 921 | static int path_set_attribute(Item *item, const char *path) { |
22c3a6ca | 922 | _cleanup_close_ int fd = -1; |
22c3a6ca | 923 | struct stat st; |
88ec4dfa LP |
924 | unsigned f; |
925 | int r; | |
22c3a6ca | 926 | |
88ec4dfa | 927 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 928 | return 0; |
22c3a6ca | 929 | |
48b8aaa8 LP |
930 | fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
931 | if (fd < 0) { | |
932 | if (errno == ELOOP) | |
933 | return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); | |
934 | ||
88ec4dfa | 935 | return log_error_errno(errno, "Cannot open '%s': %m", path); |
48b8aaa8 | 936 | } |
22c3a6ca | 937 | |
88ec4dfa LP |
938 | if (fstat(fd, &st) < 0) |
939 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
940 | ||
941 | /* Issuing the file attribute ioctls on device nodes is not | |
942 | * safe, as that will be delivered to the drivers, not the | |
943 | * file system containing the device node. */ | |
944 | if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { | |
945 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); | |
946 | return -EINVAL; | |
947 | } | |
948 | ||
949 | f = item->attribute_value & item->attribute_mask; | |
950 | ||
951 | /* Mask away directory-specific flags */ | |
22c3a6ca GB |
952 | if (!S_ISDIR(st.st_mode)) |
953 | f &= ~FS_DIRSYNC_FL; | |
88ec4dfa LP |
954 | |
955 | r = chattr_fd(fd, f, item->attribute_mask); | |
22c3a6ca | 956 | if (r < 0) |
88ec4dfa LP |
957 | return log_error_errno(r, |
958 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
959 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
960 | |
961 | return 0; | |
962 | } | |
963 | ||
d4e9eb91 | 964 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
965 | _cleanup_close_ int fd = -1; |
966 | int flags, r = 0; | |
d4e9eb91 | 967 | struct stat st; |
d4e9eb91 | 968 | |
874f1947 LP |
969 | assert(i); |
970 | assert(path); | |
971 | ||
43ad6e31 LP |
972 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
973 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 974 | |
43ad6e31 | 975 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 976 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 977 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 978 | mac_selinux_create_file_clear(); |
5c0d398d | 979 | } |
d4e9eb91 DR |
980 | |
981 | if (fd < 0) { | |
582deb84 ZJS |
982 | if (i->type == WRITE_FILE && errno == ENOENT) { |
983 | log_debug_errno(errno, "Not writing \"%s\": %m", path); | |
d4e9eb91 | 984 | return 0; |
582deb84 | 985 | } |
d4e9eb91 | 986 | |
56f64d95 | 987 | log_error_errno(errno, "Failed to create file %s: %m", path); |
d4e9eb91 DR |
988 | return -errno; |
989 | } | |
990 | ||
991 | if (i->argument) { | |
bd550f78 | 992 | _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
582deb84 | 993 | |
4034a06d | 994 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 995 | |
527b7a42 LP |
996 | r = cunescape(i->argument, 0, &unescaped); |
997 | if (r < 0) | |
998 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
d4e9eb91 | 999 | |
bd550f78 LP |
1000 | r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
1001 | if (r < 0) | |
1002 | return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); | |
1003 | ||
1004 | r = loop_write(fd, replaced, strlen(replaced), false); | |
582deb84 ZJS |
1005 | if (r < 0) |
1006 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1007 | } else | |
1008 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1009 | |
43ad6e31 | 1010 | fd = safe_close(fd); |
3612fbc1 | 1011 | |
4a62c710 MS |
1012 | if (stat(path, &st) < 0) |
1013 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 DR |
1014 | |
1015 | if (!S_ISREG(st.st_mode)) { | |
1016 | log_error("%s is not a file.", path); | |
1017 | return -EEXIST; | |
1018 | } | |
1019 | ||
b705ab6a | 1020 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1021 | if (r < 0) |
1022 | return r; | |
1023 | ||
1024 | return 0; | |
1025 | } | |
1026 | ||
081043cf ZJS |
1027 | typedef int (*action_t)(Item *, const char *); |
1028 | ||
1029 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 1030 | _cleanup_closedir_ DIR *d; |
e73a03e0 LP |
1031 | int r = 0; |
1032 | ||
1033 | assert(i); | |
1034 | assert(path); | |
a8d88783 MS |
1035 | |
1036 | /* This returns the first error we run into, but nevertheless | |
1037 | * tries to go on */ | |
1038 | ||
df99a9ef ZJS |
1039 | d = opendir_nomod(path); |
1040 | if (!d) | |
e73a03e0 | 1041 | return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
a8d88783 MS |
1042 | |
1043 | for (;;) { | |
e73a03e0 | 1044 | _cleanup_free_ char *p = NULL; |
7d5e9c0f | 1045 | struct dirent *de; |
e73a03e0 | 1046 | int q; |
a8d88783 | 1047 | |
d78096b3 FW |
1048 | errno = 0; |
1049 | de = readdir(d); | |
e73a03e0 LP |
1050 | if (!de) { |
1051 | if (errno != 0 && r == 0) | |
1052 | r = -errno; | |
a8d88783 | 1053 | |
a8d88783 | 1054 | break; |
e73a03e0 | 1055 | } |
a8d88783 | 1056 | |
7fcb4b9b | 1057 | if (STR_IN_SET(de->d_name, ".", "..")) |
a8d88783 MS |
1058 | continue; |
1059 | ||
e73a03e0 LP |
1060 | p = strjoin(path, "/", de->d_name, NULL); |
1061 | if (!p) | |
1062 | return -ENOMEM; | |
a8d88783 | 1063 | |
081043cf | 1064 | q = action(i, p); |
e73a03e0 LP |
1065 | if (q < 0 && q != -ENOENT && r == 0) |
1066 | r = q; | |
a8d88783 | 1067 | |
e73a03e0 | 1068 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 1069 | q = item_do_children(i, p, action); |
e73a03e0 LP |
1070 | if (q < 0 && r == 0) |
1071 | r = q; | |
a8d88783 | 1072 | } |
a8d88783 MS |
1073 | } |
1074 | ||
e73a03e0 | 1075 | return r; |
a8d88783 MS |
1076 | } |
1077 | ||
081043cf | 1078 | static int glob_item(Item *i, action_t action, bool recursive) { |
df99a9ef | 1079 | _cleanup_globfree_ glob_t g = { |
ebf31a1f ZJS |
1080 | .gl_closedir = (void (*)(void *)) closedir, |
1081 | .gl_readdir = (struct dirent *(*)(void *)) readdir, | |
1082 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
df99a9ef ZJS |
1083 | .gl_lstat = lstat, |
1084 | .gl_stat = stat, | |
1085 | }; | |
e73a03e0 | 1086 | int r = 0, k; |
99e68c0b MS |
1087 | char **fn; |
1088 | ||
99e68c0b | 1089 | errno = 0; |
df99a9ef | 1090 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); |
081043cf ZJS |
1091 | if (k != 0 && k != GLOB_NOMATCH) |
1092 | return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1093 | |
c84a9488 ZJS |
1094 | STRV_FOREACH(fn, g.gl_pathv) { |
1095 | k = action(i, *fn); | |
e73a03e0 | 1096 | if (k < 0 && r == 0) |
99e68c0b | 1097 | r = k; |
081043cf ZJS |
1098 | |
1099 | if (recursive) { | |
1100 | k = item_do_children(i, *fn, action); | |
1101 | if (k < 0 && r == 0) | |
1102 | r = k; | |
1103 | } | |
c84a9488 | 1104 | } |
99e68c0b | 1105 | |
99e68c0b MS |
1106 | return r; |
1107 | } | |
1108 | ||
294929f8 ZJS |
1109 | typedef enum { |
1110 | CREATION_NORMAL, | |
1111 | CREATION_EXISTING, | |
1112 | CREATION_FORCE, | |
7a7d5db7 LP |
1113 | _CREATION_MODE_MAX, |
1114 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1115 | } CreationMode; |
1116 | ||
7a7d5db7 LP |
1117 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1118 | [CREATION_NORMAL] = "Created", | |
1119 | [CREATION_EXISTING] = "Found existing", | |
1120 | [CREATION_FORCE] = "Created replacement", | |
1121 | }; | |
1122 | ||
1123 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1124 | |
3b63d2d3 | 1125 | static int create_item(Item *i) { |
75c2a9fd | 1126 | _cleanup_free_ char *resolved = NULL; |
3b63d2d3 | 1127 | struct stat st; |
df28bc08 | 1128 | int r = 0; |
294929f8 | 1129 | CreationMode creation; |
5008d581 | 1130 | |
3b63d2d3 | 1131 | assert(i); |
5008d581 | 1132 | |
582deb84 ZJS |
1133 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1134 | ||
3b63d2d3 LP |
1135 | switch (i->type) { |
1136 | ||
1137 | case IGNORE_PATH: | |
78a92a5a | 1138 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1139 | case REMOVE_PATH: |
1140 | case RECURSIVE_REMOVE_PATH: | |
1141 | return 0; | |
5008d581 | 1142 | |
3b63d2d3 | 1143 | case CREATE_FILE: |
31ed59c5 | 1144 | case TRUNCATE_FILE: |
1845fdd9 DR |
1145 | r = write_one_file(i, i->path); |
1146 | if (r < 0) | |
1147 | return r; | |
1148 | break; | |
265ffa1e | 1149 | |
5c5ccf12 | 1150 | case COPY_FILES: { |
5c5ccf12 LP |
1151 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1152 | if (r < 0) | |
1153 | return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); | |
1154 | ||
1155 | log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); | |
1156 | r = copy_tree(resolved, i->path, false); | |
849958d1 | 1157 | if (r < 0) { |
e156347e LP |
1158 | struct stat a, b; |
1159 | ||
8d3d7072 MS |
1160 | if (r != -EEXIST) |
1161 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1162 | |
5c5ccf12 LP |
1163 | if (stat(resolved, &a) < 0) |
1164 | return log_error_errno(errno, "stat(%s) failed: %m", resolved); | |
e156347e | 1165 | |
4a62c710 MS |
1166 | if (stat(i->path, &b) < 0) |
1167 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1168 | |
1169 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1170 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1171 | return 0; | |
1172 | } | |
849958d1 LP |
1173 | } |
1174 | ||
b705ab6a | 1175 | r = path_set_perms(i, i->path); |
849958d1 LP |
1176 | if (r < 0) |
1177 | return r; | |
1178 | ||
1179 | break; | |
1180 | ||
d4e9eb91 | 1181 | case WRITE_FILE: |
081043cf | 1182 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
1183 | if (r < 0) |
1184 | return r; | |
5008d581 | 1185 | |
3b63d2d3 LP |
1186 | break; |
1187 | ||
3b63d2d3 | 1188 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1189 | case TRUNCATE_DIRECTORY: |
1190 | case CREATE_SUBVOLUME: | |
5008d581 | 1191 | |
d7b8eec7 | 1192 | RUN_WITH_UMASK(0000) |
5c0d398d | 1193 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1194 | |
582deb84 ZJS |
1195 | if (i->type == CREATE_SUBVOLUME) |
1196 | RUN_WITH_UMASK((~i->mode) & 0777) { | |
d7b8eec7 | 1197 | r = btrfs_subvol_make(i->path); |
582deb84 ZJS |
1198 | log_debug_errno(r, "Creating subvolume \"%s\": %m", i->path); |
1199 | } | |
1200 | else | |
d7b8eec7 LP |
1201 | r = 0; |
1202 | ||
582deb84 | 1203 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1204 | RUN_WITH_UMASK(0000) |
1205 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1206 | |
e156347e | 1207 | if (r < 0) { |
f647962d | 1208 | if (r != -EEXIST) |
582deb84 | 1209 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); |
5008d581 | 1210 | |
4a62c710 MS |
1211 | if (stat(i->path, &st) < 0) |
1212 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
5008d581 | 1213 | |
e156347e | 1214 | if (!S_ISDIR(st.st_mode)) { |
582deb84 | 1215 | log_debug("\"%s\" already exists and is not a directory.", i->path); |
e156347e LP |
1216 | return 0; |
1217 | } | |
294929f8 ZJS |
1218 | |
1219 | creation = CREATION_EXISTING; | |
1220 | } else | |
1221 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1222 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1223 | |
b705ab6a | 1224 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1225 | if (r < 0) |
1226 | return r; | |
3b63d2d3 LP |
1227 | |
1228 | break; | |
ee17ee7c LP |
1229 | |
1230 | case CREATE_FIFO: | |
1231 | ||
5c0d398d | 1232 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1233 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1234 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1235 | mac_selinux_create_file_clear(); |
5c0d398d | 1236 | } |
ee17ee7c | 1237 | |
1554afae | 1238 | if (r < 0) { |
4a62c710 MS |
1239 | if (errno != EEXIST) |
1240 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1241 | |
4a62c710 MS |
1242 | if (stat(i->path, &st) < 0) |
1243 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
ee17ee7c | 1244 | |
1554afae LP |
1245 | if (!S_ISFIFO(st.st_mode)) { |
1246 | ||
1247 | if (i->force) { | |
1248 | ||
1249 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1250 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1251 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1252 | mac_selinux_create_file_clear(); |
1554afae LP |
1253 | } |
1254 | ||
f647962d MS |
1255 | if (r < 0) |
1256 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1257 | creation = CREATION_FORCE; |
1554afae LP |
1258 | } else { |
1259 | log_debug("%s is not a fifo.", i->path); | |
1260 | return 0; | |
1261 | } | |
294929f8 ZJS |
1262 | } else |
1263 | creation = CREATION_EXISTING; | |
1264 | } else | |
1265 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1266 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1267 | |
b705ab6a | 1268 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1269 | if (r < 0) |
1270 | return r; | |
ee17ee7c LP |
1271 | |
1272 | break; | |
5c5ccf12 | 1273 | } |
a8d88783 | 1274 | |
5c5ccf12 | 1275 | case CREATE_SYMLINK: { |
5c5ccf12 LP |
1276 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1277 | if (r < 0) | |
1278 | return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); | |
468d726b | 1279 | |
ecabcf8b | 1280 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1281 | r = symlink(resolved, i->path); |
ecabcf8b | 1282 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1283 | |
468d726b | 1284 | if (r < 0) { |
2e78fa79 | 1285 | _cleanup_free_ char *x = NULL; |
468d726b | 1286 | |
4a62c710 | 1287 | if (errno != EEXIST) |
5c5ccf12 | 1288 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
2e78fa79 LP |
1289 | |
1290 | r = readlink_malloc(i->path, &x); | |
5c5ccf12 | 1291 | if (r < 0 || !streq(resolved, x)) { |
2e78fa79 LP |
1292 | |
1293 | if (i->force) { | |
ecabcf8b | 1294 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1295 | r = symlink_atomic(resolved, i->path); |
ecabcf8b | 1296 | mac_selinux_create_file_clear(); |
2e78fa79 | 1297 | |
f647962d | 1298 | if (r < 0) |
5c5ccf12 | 1299 | return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
294929f8 | 1300 | creation = CREATION_FORCE; |
1554afae | 1301 | } else { |
582deb84 | 1302 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1303 | return 0; |
1304 | } | |
294929f8 ZJS |
1305 | } else |
1306 | creation = CREATION_EXISTING; | |
1307 | } else | |
1308 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1309 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1310 | |
468d726b | 1311 | break; |
5c5ccf12 | 1312 | } |
468d726b LP |
1313 | |
1314 | case CREATE_BLOCK_DEVICE: | |
1315 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1316 | mode_t file_type; |
1317 | ||
1318 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1319 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1320 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1321 | that case to avoid noise, and we don't support |
1322 | virtualized devices in containers anyway. */ | |
1323 | ||
1324 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1325 | return 0; | |
1326 | } | |
1327 | ||
1554afae | 1328 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1329 | |
5c0d398d | 1330 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1331 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1332 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1333 | mac_selinux_create_file_clear(); |
5c0d398d | 1334 | } |
468d726b | 1335 | |
6555ad8e KS |
1336 | if (r < 0) { |
1337 | if (errno == EPERM) { | |
1338 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1339 | "skipping creation of device node %s.", i->path); | |
1340 | return 0; | |
1341 | } | |
1342 | ||
4a62c710 MS |
1343 | if (errno != EEXIST) |
1344 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1345 | |
4a62c710 MS |
1346 | if (stat(i->path, &st) < 0) |
1347 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
468d726b | 1348 | |
1554afae LP |
1349 | if ((st.st_mode & S_IFMT) != file_type) { |
1350 | ||
1351 | if (i->force) { | |
1352 | ||
1353 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1354 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1355 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1356 | mac_selinux_create_file_clear(); |
1554afae LP |
1357 | } |
1358 | ||
f647962d | 1359 | if (r < 0) |
294929f8 ZJS |
1360 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1361 | creation = CREATION_FORCE; | |
1554afae LP |
1362 | } else { |
1363 | log_debug("%s is not a device node.", i->path); | |
1364 | return 0; | |
1365 | } | |
294929f8 ZJS |
1366 | } else |
1367 | creation = CREATION_EXISTING; | |
1368 | } else | |
1369 | creation = CREATION_NORMAL; | |
1370 | log_debug("%s %s device node \"%s\" %u:%u.", | |
7a7d5db7 | 1371 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1372 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1373 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1374 | |
b705ab6a | 1375 | r = path_set_perms(i, i->path); |
468d726b LP |
1376 | if (r < 0) |
1377 | return r; | |
1378 | ||
1379 | break; | |
1380 | } | |
1381 | ||
e73a03e0 | 1382 | case ADJUST_MODE: |
777b87e7 | 1383 | case RELABEL_PATH: |
b705ab6a | 1384 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1385 | if (r < 0) |
96ca8194 | 1386 | return r; |
777b87e7 MS |
1387 | break; |
1388 | ||
a8d88783 | 1389 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1390 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1391 | if (r < 0) |
1392 | return r; | |
ebf4e801 | 1393 | break; |
e73a03e0 | 1394 | |
ebf4e801 | 1395 | case SET_XATTR: |
b705ab6a ZJS |
1396 | r = glob_item(i, path_set_xattrs, false); |
1397 | if (r < 0) | |
1398 | return r; | |
1399 | break; | |
1400 | ||
1401 | case RECURSIVE_SET_XATTR: | |
1402 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1403 | if (r < 0) |
1404 | return r; | |
e73a03e0 | 1405 | break; |
f8eeeaf9 ZJS |
1406 | |
1407 | case SET_ACL: | |
b705ab6a | 1408 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1409 | if (r < 0) |
1410 | return r; | |
b705ab6a ZJS |
1411 | break; |
1412 | ||
1413 | case RECURSIVE_SET_ACL: | |
1414 | r = glob_item(i, path_set_acls, true); | |
1415 | if (r < 0) | |
1416 | return r; | |
1417 | break; | |
22c3a6ca | 1418 | |
88ec4dfa LP |
1419 | case SET_ATTRIBUTE: |
1420 | r = glob_item(i, path_set_attribute, false); | |
22c3a6ca GB |
1421 | if (r < 0) |
1422 | return r; | |
1423 | break; | |
1424 | ||
88ec4dfa LP |
1425 | case RECURSIVE_SET_ATTRIBUTE: |
1426 | r = glob_item(i, path_set_attribute, true); | |
22c3a6ca GB |
1427 | if (r < 0) |
1428 | return r; | |
1429 | break; | |
3b63d2d3 LP |
1430 | } |
1431 | ||
f05bc3f7 | 1432 | return 0; |
3b63d2d3 LP |
1433 | } |
1434 | ||
a0896123 | 1435 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1436 | int r; |
1437 | ||
1438 | assert(i); | |
1439 | ||
1440 | switch (i->type) { | |
1441 | ||
3b63d2d3 | 1442 | case REMOVE_PATH: |
4a62c710 | 1443 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1444 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1445 | |
1446 | break; | |
1447 | ||
1448 | case TRUNCATE_DIRECTORY: | |
1449 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1450 | /* FIXME: we probably should use dir_cleanup() here |
1451 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1452 | log_debug("rm -rf \"%s\"", instance); |
c6878637 | 1453 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1454 | if (r < 0 && r != -ENOENT) |
1455 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1456 | |
1457 | break; | |
7fcb4b9b ZJS |
1458 | |
1459 | default: | |
1460 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1461 | } |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
a0896123 | 1466 | static int remove_item(Item *i) { |
99e68c0b MS |
1467 | int r = 0; |
1468 | ||
b8bb3e8f LP |
1469 | assert(i); |
1470 | ||
582deb84 ZJS |
1471 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1472 | ||
b8bb3e8f LP |
1473 | switch (i->type) { |
1474 | ||
1475 | case CREATE_FILE: | |
1476 | case TRUNCATE_FILE: | |
1477 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1478 | case CREATE_SUBVOLUME: |
ee17ee7c | 1479 | case CREATE_FIFO: |
468d726b LP |
1480 | case CREATE_SYMLINK: |
1481 | case CREATE_CHAR_DEVICE: | |
1482 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 1483 | case IGNORE_PATH: |
78a92a5a | 1484 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1485 | case ADJUST_MODE: |
777b87e7 | 1486 | case RELABEL_PATH: |
a8d88783 | 1487 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1488 | case WRITE_FILE: |
849958d1 | 1489 | case COPY_FILES: |
ebf4e801 | 1490 | case SET_XATTR: |
b705ab6a | 1491 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1492 | case SET_ACL: |
b705ab6a | 1493 | case RECURSIVE_SET_ACL: |
88ec4dfa LP |
1494 | case SET_ATTRIBUTE: |
1495 | case RECURSIVE_SET_ATTRIBUTE: | |
b8bb3e8f LP |
1496 | break; |
1497 | ||
1498 | case REMOVE_PATH: | |
1499 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1500 | case RECURSIVE_REMOVE_PATH: |
081043cf | 1501 | r = glob_item(i, remove_item_instance, false); |
99e68c0b | 1502 | break; |
b8bb3e8f LP |
1503 | } |
1504 | ||
99e68c0b | 1505 | return r; |
b8bb3e8f LP |
1506 | } |
1507 | ||
78a92a5a | 1508 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1509 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1510 | struct stat s, ps; |
1511 | bool mountpoint; | |
78a92a5a | 1512 | usec_t cutoff, n; |
582deb84 | 1513 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1514 | |
1515 | assert(i); | |
1516 | ||
1517 | if (!i->age_set) | |
1518 | return 0; | |
1519 | ||
1520 | n = now(CLOCK_REALTIME); | |
1521 | if (n < i->age) | |
1522 | return 0; | |
1523 | ||
1524 | cutoff = n - i->age; | |
1525 | ||
df99a9ef | 1526 | d = opendir_nomod(instance); |
78a92a5a | 1527 | if (!d) { |
582deb84 ZJS |
1528 | if (errno == ENOENT || errno == ENOTDIR) { |
1529 | log_debug_errno(errno, "Directory \"%s\": %m", instance); | |
78a92a5a | 1530 | return 0; |
582deb84 | 1531 | } |
78a92a5a | 1532 | |
582deb84 | 1533 | log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1534 | return -errno; |
1535 | } | |
1536 | ||
4a62c710 MS |
1537 | if (fstat(dirfd(d), &s) < 0) |
1538 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1539 | |
1540 | if (!S_ISDIR(s.st_mode)) { | |
1541 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1542 | return -ENOTDIR; |
78a92a5a MS |
1543 | } |
1544 | ||
4a62c710 MS |
1545 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1546 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a MS |
1547 | |
1548 | mountpoint = s.st_dev != ps.st_dev || | |
1549 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
1550 | ||
582deb84 ZJS |
1551 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1552 | mountpoint ? "mount point" : "directory", | |
1553 | instance, | |
1554 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1555 | ||
1556 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1557 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1558 | } |
1559 | ||
1560 | static int clean_item(Item *i) { | |
1561 | int r = 0; | |
1562 | ||
1563 | assert(i); | |
1564 | ||
582deb84 ZJS |
1565 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1566 | ||
78a92a5a MS |
1567 | switch (i->type) { |
1568 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1569 | case CREATE_SUBVOLUME: |
78a92a5a MS |
1570 | case TRUNCATE_DIRECTORY: |
1571 | case IGNORE_PATH: | |
849958d1 | 1572 | case COPY_FILES: |
78a92a5a MS |
1573 | clean_item_instance(i, i->path); |
1574 | break; | |
1575 | case IGNORE_DIRECTORY_PATH: | |
081043cf | 1576 | r = glob_item(i, clean_item_instance, false); |
78a92a5a MS |
1577 | break; |
1578 | default: | |
1579 | break; | |
1580 | } | |
1581 | ||
1582 | return r; | |
1583 | } | |
1584 | ||
3f93da98 ZJS |
1585 | static int process_item_array(ItemArray *array); |
1586 | ||
3b63d2d3 | 1587 | static int process_item(Item *i) { |
1e95893a | 1588 | int r, q, p, t = 0; |
9348f0e6 | 1589 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1590 | |
1591 | assert(i); | |
1592 | ||
1910cd0e LP |
1593 | if (i->done) |
1594 | return 0; | |
1595 | ||
1596 | i->done = true; | |
1597 | ||
9348f0e6 ZJS |
1598 | prefix = malloc(strlen(i->path) + 1); |
1599 | if (!prefix) | |
1600 | return log_oom(); | |
1601 | ||
1910cd0e | 1602 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1603 | ItemArray *j; |
1910cd0e LP |
1604 | |
1605 | j = hashmap_get(items, prefix); | |
1db50423 ZJS |
1606 | if (j) { |
1607 | int s; | |
1608 | ||
3f93da98 | 1609 | s = process_item_array(j); |
1db50423 ZJS |
1610 | if (s < 0 && t == 0) |
1611 | t = s; | |
1612 | } | |
1910cd0e LP |
1613 | } |
1614 | ||
3b63d2d3 | 1615 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1616 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1617 | p = arg_clean ? clean_item(i) : 0; |
1618 | ||
1db50423 ZJS |
1619 | return t < 0 ? t : |
1620 | r < 0 ? r : | |
1621 | q < 0 ? q : | |
1622 | p; | |
3b63d2d3 LP |
1623 | } |
1624 | ||
3f93da98 ZJS |
1625 | static int process_item_array(ItemArray *array) { |
1626 | unsigned n; | |
1627 | int r = 0, k; | |
753615e8 | 1628 | |
3f93da98 ZJS |
1629 | assert(array); |
1630 | ||
1631 | for (n = 0; n < array->count; n++) { | |
1632 | k = process_item(array->items + n); | |
1633 | if (k < 0 && r == 0) | |
1634 | r = k; | |
1635 | } | |
1636 | ||
1637 | return r; | |
1638 | } | |
3b63d2d3 | 1639 | |
3f93da98 ZJS |
1640 | static void item_free_contents(Item *i) { |
1641 | assert(i); | |
3b63d2d3 | 1642 | free(i->path); |
468d726b | 1643 | free(i->argument); |
ebf4e801 | 1644 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1645 | |
1646 | #ifdef HAVE_ACL | |
1647 | acl_free(i->acl_access); | |
1648 | acl_free(i->acl_default); | |
1649 | #endif | |
3b63d2d3 LP |
1650 | } |
1651 | ||
3f93da98 ZJS |
1652 | static void item_array_free(ItemArray *a) { |
1653 | unsigned n; | |
1654 | ||
1655 | if (!a) | |
1656 | return; | |
1657 | ||
1658 | for (n = 0; n < a->count; n++) | |
1659 | item_free_contents(a->items + n); | |
1660 | free(a->items); | |
1661 | free(a); | |
1662 | } | |
e2f2fb78 | 1663 | |
17493fa5 LP |
1664 | static int item_compare(const void *a, const void *b) { |
1665 | const Item *x = a, *y = b; | |
1666 | ||
1667 | /* Make sure that the ownership taking item is put first, so | |
1668 | * that we first create the node, and then can adjust it */ | |
1669 | ||
1670 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
1671 | return -1; | |
1672 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
1673 | return 1; | |
1674 | ||
1675 | return (int) x->type - (int) y->type; | |
1676 | } | |
1677 | ||
3f93da98 | 1678 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1679 | assert(a); |
1680 | assert(b); | |
3f93da98 | 1681 | assert(streq(a->path, b->path)); |
bfe95f35 | 1682 | |
3f93da98 ZJS |
1683 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1684 | /* check if the items are the same */ | |
1685 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1686 | |
3f93da98 ZJS |
1687 | a->uid_set == b->uid_set && |
1688 | a->uid == b->uid && | |
bfe95f35 | 1689 | |
3f93da98 ZJS |
1690 | a->gid_set == b->gid_set && |
1691 | a->gid == b->gid && | |
bfe95f35 | 1692 | |
3f93da98 ZJS |
1693 | a->mode_set == b->mode_set && |
1694 | a->mode == b->mode && | |
bfe95f35 | 1695 | |
3f93da98 ZJS |
1696 | a->age_set == b->age_set && |
1697 | a->age == b->age && | |
bfe95f35 | 1698 | |
3f93da98 | 1699 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1700 | |
3f93da98 | 1701 | a->keep_first_level == b->keep_first_level && |
468d726b | 1702 | |
3f93da98 | 1703 | a->major_minor == b->major_minor; |
468d726b | 1704 | |
bfe95f35 LP |
1705 | return true; |
1706 | } | |
1707 | ||
a2aced4a DR |
1708 | static bool should_include_path(const char *path) { |
1709 | char **prefix; | |
1710 | ||
abef3f91 | 1711 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
1712 | if (path_startswith(path, *prefix)) { |
1713 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
1714 | path, *prefix); | |
5c795114 | 1715 | return false; |
582deb84 | 1716 | } |
a2aced4a | 1717 | |
abef3f91 | 1718 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
1719 | if (path_startswith(path, *prefix)) { |
1720 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 1721 | return true; |
582deb84 | 1722 | } |
a2aced4a | 1723 | |
5c795114 DR |
1724 | /* no matches, so we should include this path only if we |
1725 | * have no whitelist at all */ | |
582deb84 ZJS |
1726 | if (strv_length(arg_include_prefixes) == 0) |
1727 | return true; | |
1728 | ||
1729 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
1730 | return false; | |
a2aced4a DR |
1731 | } |
1732 | ||
fba6e687 | 1733 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a | 1734 | |
cde684a2 | 1735 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1736 | _cleanup_(item_free_contents) Item i = {}; |
1737 | ItemArray *existing; | |
bfe95f35 | 1738 | Hashmap *h; |
657cf7f4 | 1739 | int r, pos; |
5f255144 | 1740 | bool force = false, boot = false; |
3b63d2d3 LP |
1741 | |
1742 | assert(fname); | |
1743 | assert(line >= 1); | |
1744 | assert(buffer); | |
1745 | ||
4034a06d LP |
1746 | r = unquote_many_words( |
1747 | &buffer, | |
1748 | 0, | |
1749 | &action, | |
1750 | &path, | |
1751 | &mode, | |
1752 | &user, | |
1753 | &group, | |
1754 | &age, | |
1755 | NULL); | |
657cf7f4 | 1756 | if (r < 0) |
1757 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); | |
1758 | else if (r < 2) { | |
3b63d2d3 | 1759 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1760 | return -EIO; |
5008d581 LP |
1761 | } |
1762 | ||
aa5f6817 | 1763 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
1764 | i.argument = strdup(buffer); |
1765 | if (!i.argument) | |
1766 | return log_oom(); | |
1767 | } | |
1768 | ||
2e78fa79 LP |
1769 | if (isempty(action)) { |
1770 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1771 | return -EINVAL; |
2e78fa79 LP |
1772 | } |
1773 | ||
5f255144 ZJS |
1774 | for (pos = 1; action[pos]; pos++) { |
1775 | if (action[pos] == '!' && !boot) | |
1776 | boot = true; | |
1777 | else if (action[pos] == '+' && !force) | |
1778 | force = true; | |
1779 | else { | |
1780 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1781 | fname, line, action); | |
1782 | return -EINVAL; | |
1783 | } | |
2e78fa79 LP |
1784 | } |
1785 | ||
582deb84 ZJS |
1786 | if (boot && !arg_boot) { |
1787 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
1788 | action, path); | |
c4708f13 | 1789 | return 0; |
582deb84 | 1790 | } |
c4708f13 | 1791 | |
3f93da98 ZJS |
1792 | i.type = action[0]; |
1793 | i.force = force; | |
2e78fa79 | 1794 | |
3f93da98 | 1795 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1796 | if (r < 0) { |
1797 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1798 | return r; | |
1799 | } | |
1800 | ||
3f93da98 | 1801 | switch (i.type) { |
468d726b | 1802 | |
777b87e7 | 1803 | case CREATE_DIRECTORY: |
d7b8eec7 | 1804 | case CREATE_SUBVOLUME: |
777b87e7 MS |
1805 | case TRUNCATE_DIRECTORY: |
1806 | case CREATE_FIFO: | |
1807 | case IGNORE_PATH: | |
78a92a5a | 1808 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1809 | case REMOVE_PATH: |
1810 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1811 | case ADJUST_MODE: |
777b87e7 MS |
1812 | case RELABEL_PATH: |
1813 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 1814 | if (i.argument) |
bd550f78 | 1815 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
1816 | |
1817 | break; | |
1818 | ||
1819 | case CREATE_FILE: | |
1820 | case TRUNCATE_FILE: | |
777b87e7 | 1821 | break; |
468d726b LP |
1822 | |
1823 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1824 | if (!i.argument) { |
1825 | i.argument = strappend("/usr/share/factory/", i.path); | |
1826 | if (!i.argument) | |
2f3b873a | 1827 | return log_oom(); |
468d726b LP |
1828 | } |
1829 | break; | |
1830 | ||
31ed59c5 | 1831 | case WRITE_FILE: |
3f93da98 | 1832 | if (!i.argument) { |
31ed59c5 | 1833 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1834 | return -EBADMSG; |
31ed59c5 LP |
1835 | } |
1836 | break; | |
1837 | ||
849958d1 | 1838 | case COPY_FILES: |
3f93da98 ZJS |
1839 | if (!i.argument) { |
1840 | i.argument = strappend("/usr/share/factory/", i.path); | |
1841 | if (!i.argument) | |
2f3b873a | 1842 | return log_oom(); |
3f93da98 | 1843 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1844 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1845 | return -EBADMSG; | |
1846 | } | |
1847 | ||
3f93da98 | 1848 | path_kill_slashes(i.argument); |
849958d1 LP |
1849 | break; |
1850 | ||
468d726b LP |
1851 | case CREATE_CHAR_DEVICE: |
1852 | case CREATE_BLOCK_DEVICE: { | |
1853 | unsigned major, minor; | |
1854 | ||
3f93da98 | 1855 | if (!i.argument) { |
468d726b | 1856 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1857 | return -EBADMSG; |
468d726b LP |
1858 | } |
1859 | ||
3f93da98 ZJS |
1860 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1861 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1862 | return -EBADMSG; |
468d726b LP |
1863 | } |
1864 | ||
3f93da98 | 1865 | i.major_minor = makedev(major, minor); |
468d726b LP |
1866 | break; |
1867 | } | |
1868 | ||
ebf4e801 | 1869 | case SET_XATTR: |
b705ab6a | 1870 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1871 | if (!i.argument) { |
ebf4e801 MW |
1872 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1873 | return -EBADMSG; | |
1874 | } | |
bd550f78 | 1875 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
1876 | if (r < 0) |
1877 | return r; | |
1878 | break; | |
1879 | ||
f8eeeaf9 | 1880 | case SET_ACL: |
b705ab6a | 1881 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1882 | if (!i.argument) { |
1883 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1884 | return -EBADMSG; | |
1885 | } | |
bd550f78 | 1886 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
1887 | if (r < 0) |
1888 | return r; | |
1889 | break; | |
1890 | ||
88ec4dfa LP |
1891 | case SET_ATTRIBUTE: |
1892 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 1893 | if (!i.argument) { |
88ec4dfa | 1894 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
1895 | return -EBADMSG; |
1896 | } | |
bd550f78 | 1897 | r = parse_attribute_from_arg(&i); |
22c3a6ca GB |
1898 | if (r < 0) |
1899 | return r; | |
1900 | break; | |
1901 | ||
777b87e7 | 1902 | default: |
582deb84 | 1903 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
7f2c1f4d | 1904 | return -EBADMSG; |
3b63d2d3 | 1905 | } |
468d726b | 1906 | |
3f93da98 ZJS |
1907 | if (!path_is_absolute(i.path)) { |
1908 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1909 | return -EBADMSG; |
3b63d2d3 LP |
1910 | } |
1911 | ||
3f93da98 | 1912 | path_kill_slashes(i.path); |
3b63d2d3 | 1913 | |
3f93da98 | 1914 | if (!should_include_path(i.path)) |
7f2c1f4d | 1915 | return 0; |
5008d581 | 1916 | |
cf9a4abd | 1917 | if (arg_root) { |
cde684a2 LP |
1918 | char *p; |
1919 | ||
3f93da98 | 1920 | p = strappend(arg_root, i.path); |
cf9a4abd MM |
1921 | if (!p) |
1922 | return log_oom(); | |
1923 | ||
3f93da98 ZJS |
1924 | free(i.path); |
1925 | i.path = p; | |
cf9a4abd MM |
1926 | } |
1927 | ||
90937fe3 | 1928 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
1929 | const char *u = user; |
1930 | ||
3f93da98 | 1931 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 1932 | if (r < 0) { |
3b63d2d3 | 1933 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1934 | return r; |
3b63d2d3 LP |
1935 | } |
1936 | ||
3f93da98 | 1937 | i.uid_set = true; |
3b63d2d3 LP |
1938 | } |
1939 | ||
90937fe3 | 1940 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
1941 | const char *g = group; |
1942 | ||
3f93da98 | 1943 | r = get_group_creds(&g, &i.gid); |
4b67834e | 1944 | if (r < 0) { |
3b63d2d3 | 1945 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1946 | return r; |
3b63d2d3 LP |
1947 | } |
1948 | ||
3f93da98 | 1949 | i.gid_set = true; |
3b63d2d3 LP |
1950 | } |
1951 | ||
90937fe3 | 1952 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 1953 | const char *mm = mode; |
3b63d2d3 LP |
1954 | unsigned m; |
1955 | ||
abef3f91 | 1956 | if (*mm == '~') { |
3f93da98 | 1957 | i.mask_perms = true; |
abef3f91 LP |
1958 | mm++; |
1959 | } | |
1960 | ||
2ff7b0a5 | 1961 | if (parse_mode(mm, &m) < 0) { |
3b63d2d3 | 1962 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 1963 | return -EBADMSG; |
3b63d2d3 LP |
1964 | } |
1965 | ||
3f93da98 ZJS |
1966 | i.mode = m; |
1967 | i.mode_set = true; | |
3b63d2d3 | 1968 | } else |
3f93da98 ZJS |
1969 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, CREATE_SUBVOLUME, TRUNCATE_DIRECTORY) |
1970 | ? 0755 : 0644; | |
3b63d2d3 | 1971 | |
90937fe3 | 1972 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
1973 | const char *a = age; |
1974 | ||
1975 | if (*a == '~') { | |
3f93da98 | 1976 | i.keep_first_level = true; |
24f3a374 LP |
1977 | a++; |
1978 | } | |
1979 | ||
3f93da98 | 1980 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 1981 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 1982 | return -EBADMSG; |
3b63d2d3 LP |
1983 | } |
1984 | ||
3f93da98 | 1985 | i.age_set = true; |
3b63d2d3 LP |
1986 | } |
1987 | ||
3f93da98 | 1988 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 1989 | |
3f93da98 | 1990 | existing = hashmap_get(h, i.path); |
468d726b | 1991 | if (existing) { |
3f93da98 ZJS |
1992 | unsigned n; |
1993 | ||
1994 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 1995 | if (!item_compatible(existing->items + n, &i)) { |
505ef0e3 | 1996 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 1997 | fname, line, i.path); |
6487ada8 MP |
1998 | return 0; |
1999 | } | |
ebf4e801 MW |
2000 | } |
2001 | } else { | |
3f93da98 ZJS |
2002 | existing = new0(ItemArray, 1); |
2003 | r = hashmap_put(h, i.path, existing); | |
2004 | if (r < 0) | |
2005 | return log_oom(); | |
bfe95f35 LP |
2006 | } |
2007 | ||
3f93da98 ZJS |
2008 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2009 | return log_oom(); | |
5008d581 | 2010 | |
3f93da98 | 2011 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2012 | |
2013 | /* Sort item array, to enforce stable ordering of application */ | |
2014 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2015 | |
3f93da98 | 2016 | zero(i); |
7f2c1f4d | 2017 | return 0; |
5008d581 LP |
2018 | } |
2019 | ||
601185b4 | 2020 | static void help(void) { |
522d4a49 LP |
2021 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2022 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2023 | " -h --help Show this help\n" |
eb9da376 | 2024 | " --version Show package version\n" |
5c795114 DR |
2025 | " --create Create marked files/directories\n" |
2026 | " --clean Clean up marked directories\n" | |
2027 | " --remove Remove marked files/directories\n" | |
81815651 | 2028 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2029 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2030 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
cf9a4abd | 2031 | " --root=PATH Operate on an alternate filesystem root\n", |
3b63d2d3 | 2032 | program_invocation_short_name); |
3b63d2d3 LP |
2033 | } |
2034 | ||
2035 | static int parse_argv(int argc, char *argv[]) { | |
2036 | ||
2037 | enum { | |
eb9da376 | 2038 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
2039 | ARG_CREATE, |
2040 | ARG_CLEAN, | |
fba6e687 | 2041 | ARG_REMOVE, |
81815651 | 2042 | ARG_BOOT, |
5c795114 DR |
2043 | ARG_PREFIX, |
2044 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2045 | ARG_ROOT, |
3b63d2d3 LP |
2046 | }; |
2047 | ||
2048 | static const struct option options[] = { | |
5c795114 | 2049 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 2050 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
2051 | { "create", no_argument, NULL, ARG_CREATE }, |
2052 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2053 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2054 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2055 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2056 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2057 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 2058 | {} |
3b63d2d3 LP |
2059 | }; |
2060 | ||
2061 | int c; | |
2062 | ||
2063 | assert(argc >= 0); | |
2064 | assert(argv); | |
2065 | ||
601185b4 | 2066 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2067 | |
2068 | switch (c) { | |
2069 | ||
2070 | case 'h': | |
601185b4 ZJS |
2071 | help(); |
2072 | return 0; | |
eb9da376 LP |
2073 | |
2074 | case ARG_VERSION: | |
2075 | puts(PACKAGE_STRING); | |
2076 | puts(SYSTEMD_FEATURES); | |
3b63d2d3 LP |
2077 | return 0; |
2078 | ||
2079 | case ARG_CREATE: | |
2080 | arg_create = true; | |
2081 | break; | |
2082 | ||
2083 | case ARG_CLEAN: | |
2084 | arg_clean = true; | |
2085 | break; | |
2086 | ||
2087 | case ARG_REMOVE: | |
2088 | arg_remove = true; | |
2089 | break; | |
2090 | ||
81815651 ZJS |
2091 | case ARG_BOOT: |
2092 | arg_boot = true; | |
c4708f13 ZJS |
2093 | break; |
2094 | ||
fba6e687 | 2095 | case ARG_PREFIX: |
7bc040fa | 2096 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2097 | return log_oom(); |
fba6e687 LP |
2098 | break; |
2099 | ||
5c795114 | 2100 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2101 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2102 | return log_oom(); |
2103 | break; | |
2104 | ||
cf9a4abd | 2105 | case ARG_ROOT: |
753615e8 | 2106 | free(arg_root); |
cf9a4abd MM |
2107 | arg_root = path_make_absolute_cwd(optarg); |
2108 | if (!arg_root) | |
2109 | return log_oom(); | |
753615e8 | 2110 | |
cf9a4abd MM |
2111 | path_kill_slashes(arg_root); |
2112 | break; | |
2113 | ||
3b63d2d3 LP |
2114 | case '?': |
2115 | return -EINVAL; | |
2116 | ||
2117 | default: | |
eb9da376 | 2118 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2119 | } |
3b63d2d3 LP |
2120 | |
2121 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 2122 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2123 | return -EINVAL; |
2124 | } | |
2125 | ||
2126 | return 1; | |
2127 | } | |
2128 | ||
fba6e687 | 2129 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
2130 | _cleanup_fclose_ FILE *f = NULL; |
2131 | char line[LINE_MAX]; | |
78a92a5a | 2132 | Iterator iterator; |
1731e34a | 2133 | unsigned v = 0; |
78a92a5a | 2134 | Item *i; |
1731e34a | 2135 | int r; |
fba6e687 LP |
2136 | |
2137 | assert(fn); | |
2138 | ||
cf9a4abd | 2139 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e | 2140 | if (r < 0) { |
582deb84 ZJS |
2141 | if (ignore_enoent && r == -ENOENT) { |
2142 | log_debug_errno(r, "Failed to open \"%s\": %m", fn); | |
fba6e687 | 2143 | return 0; |
582deb84 | 2144 | } |
fba6e687 | 2145 | |
8d3d7072 | 2146 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
fba6e687 | 2147 | } |
582deb84 | 2148 | log_debug("Reading config file \"%s\".", fn); |
fba6e687 | 2149 | |
1731e34a LP |
2150 | FOREACH_LINE(line, f, break) { |
2151 | char *l; | |
fba6e687 LP |
2152 | int k; |
2153 | ||
fba6e687 LP |
2154 | v++; |
2155 | ||
2156 | l = strstrip(line); | |
2157 | if (*l == '#' || *l == 0) | |
2158 | continue; | |
2159 | ||
1731e34a LP |
2160 | k = parse_line(fn, v, l); |
2161 | if (k < 0 && r == 0) | |
2162 | r = k; | |
fba6e687 LP |
2163 | } |
2164 | ||
78a92a5a MS |
2165 | /* we have to determine age parameter for each entry of type X */ |
2166 | HASHMAP_FOREACH(i, globs, iterator) { | |
2167 | Iterator iter; | |
2168 | Item *j, *candidate_item = NULL; | |
2169 | ||
2170 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2171 | continue; | |
2172 | ||
2173 | HASHMAP_FOREACH(j, items, iter) { | |
d7b8eec7 | 2174 | if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY && j->type != CREATE_SUBVOLUME) |
78a92a5a MS |
2175 | continue; |
2176 | ||
2177 | if (path_equal(j->path, i->path)) { | |
2178 | candidate_item = j; | |
2179 | break; | |
2180 | } | |
2181 | ||
2182 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2183 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2184 | candidate_item = j; | |
2185 | } | |
2186 | ||
9ed2a35e | 2187 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2188 | i->age = candidate_item->age; |
2189 | i->age_set = true; | |
2190 | } | |
2191 | } | |
2192 | ||
fba6e687 | 2193 | if (ferror(f)) { |
56f64d95 | 2194 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2195 | if (r == 0) |
2196 | r = -EIO; | |
2197 | } | |
2198 | ||
fba6e687 LP |
2199 | return r; |
2200 | } | |
2201 | ||
5008d581 | 2202 | int main(int argc, char *argv[]) { |
fabe5c0e | 2203 | int r, k; |
3f93da98 | 2204 | ItemArray *a; |
3b63d2d3 LP |
2205 | Iterator iterator; |
2206 | ||
fdcad0c2 LP |
2207 | r = parse_argv(argc, argv); |
2208 | if (r <= 0) | |
753615e8 | 2209 | goto finish; |
5008d581 | 2210 | |
eb0ca9eb | 2211 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2212 | log_parse_environment(); |
2213 | log_open(); | |
2214 | ||
4c12626c LP |
2215 | umask(0022); |
2216 | ||
cc56fafe | 2217 | mac_selinux_init(NULL); |
5008d581 | 2218 | |
d5099efc MS |
2219 | items = hashmap_new(&string_hash_ops); |
2220 | globs = hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
2221 | |
2222 | if (!items || !globs) { | |
fabe5c0e | 2223 | r = log_oom(); |
3b63d2d3 LP |
2224 | goto finish; |
2225 | } | |
2226 | ||
fabe5c0e | 2227 | r = 0; |
5008d581 | 2228 | |
fba6e687 LP |
2229 | if (optind < argc) { |
2230 | int j; | |
5008d581 | 2231 | |
9125670f | 2232 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
2233 | k = read_config_file(argv[j], false); |
2234 | if (k < 0 && r == 0) | |
2235 | r = k; | |
9125670f | 2236 | } |
5008d581 | 2237 | |
fba6e687 | 2238 | } else { |
fabe5c0e LP |
2239 | _cleanup_strv_free_ char **files = NULL; |
2240 | char **f; | |
5008d581 | 2241 | |
cf9a4abd | 2242 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 2243 | if (r < 0) { |
da927ba9 | 2244 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
2245 | goto finish; |
2246 | } | |
3b63d2d3 | 2247 | |
772f8371 | 2248 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
2249 | k = read_config_file(*f, true); |
2250 | if (k < 0 && r == 0) | |
2251 | r = k; | |
5008d581 | 2252 | } |
772f8371 | 2253 | } |
5008d581 | 2254 | |
17493fa5 LP |
2255 | /* The non-globbing ones usually create things, hence we apply |
2256 | * them first */ | |
2257 | HASHMAP_FOREACH(a, items, iterator) { | |
3f93da98 | 2258 | k = process_item_array(a); |
1db50423 ZJS |
2259 | if (k < 0 && r == 0) |
2260 | r = k; | |
2261 | } | |
b8bb3e8f | 2262 | |
17493fa5 LP |
2263 | /* The globbing ones usually alter things, hence we apply them |
2264 | * second. */ | |
2265 | HASHMAP_FOREACH(a, globs, iterator) { | |
3f93da98 | 2266 | k = process_item_array(a); |
1db50423 ZJS |
2267 | if (k < 0 && r == 0) |
2268 | r = k; | |
2269 | } | |
3b63d2d3 | 2270 | |
5008d581 | 2271 | finish: |
3f93da98 ZJS |
2272 | while ((a = hashmap_steal_first(items))) |
2273 | item_array_free(a); | |
3b63d2d3 | 2274 | |
3f93da98 ZJS |
2275 | while ((a = hashmap_steal_first(globs))) |
2276 | item_array_free(a); | |
17b90525 | 2277 | |
3b63d2d3 | 2278 | hashmap_free(items); |
b8bb3e8f | 2279 | hashmap_free(globs); |
5008d581 | 2280 | |
7bc040fa LP |
2281 | free(arg_include_prefixes); |
2282 | free(arg_exclude_prefixes); | |
cf9a4abd | 2283 | free(arg_root); |
a2aced4a | 2284 | |
17b90525 LP |
2285 | set_free_free(unix_sockets); |
2286 | ||
cc56fafe | 2287 | mac_selinux_finish(); |
29003cff | 2288 | |
fabe5c0e | 2289 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 2290 | } |