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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 | ||
3f6fd1ba | 23 | #include <dirent.h> |
5008d581 | 24 | #include <errno.h> |
3f6fd1ba LP |
25 | #include <fcntl.h> |
26 | #include <fnmatch.h> | |
27 | #include <getopt.h> | |
28 | #include <glob.h> | |
5008d581 | 29 | #include <limits.h> |
3f6fd1ba LP |
30 | #include <linux/fs.h> |
31 | #include <stdbool.h> | |
32 | #include <stddef.h> | |
3b63d2d3 LP |
33 | #include <stdio.h> |
34 | #include <stdlib.h> | |
3f6fd1ba | 35 | #include <string.h> |
505ef0e3 | 36 | #include <sys/stat.h> |
ebf4e801 | 37 | #include <sys/xattr.h> |
3f6fd1ba LP |
38 | #include <time.h> |
39 | #include <unistd.h> | |
5008d581 | 40 | |
3f6fd1ba LP |
41 | #include "acl-util.h" |
42 | #include "btrfs-util.h" | |
43 | #include "capability.h" | |
44 | #include "conf-files.h" | |
45 | #include "copy.h" | |
46 | #include "formats-util.h" | |
47 | #include "label.h" | |
5008d581 | 48 | #include "log.h" |
54693d9b | 49 | #include "macro.h" |
d39efe74 | 50 | #include "missing.h" |
49e942b2 | 51 | #include "mkdir.h" |
9eb977db | 52 | #include "path-util.h" |
c6878637 | 53 | #include "rm-rf.h" |
d7b8eec7 | 54 | #include "selinux-util.h" |
3f6fd1ba LP |
55 | #include "set.h" |
56 | #include "specifier.h" | |
57 | #include "strv.h" | |
58 | #include "util.h" | |
5008d581 | 59 | |
01000479 | 60 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 61 | * them in the file system. This is intended to be used to create |
db019b8d KS |
62 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
63 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 64 | |
66ccd038 | 65 | typedef enum ItemType { |
b8bb3e8f | 66 | /* These ones take file names */ |
3b63d2d3 LP |
67 | CREATE_FILE = 'f', |
68 | TRUNCATE_FILE = 'F', | |
69 | CREATE_DIRECTORY = 'd', | |
70 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 71 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
72 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
73 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 74 | CREATE_FIFO = 'p', |
468d726b LP |
75 | CREATE_SYMLINK = 'L', |
76 | CREATE_CHAR_DEVICE = 'c', | |
77 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 78 | COPY_FILES = 'C', |
b8bb3e8f LP |
79 | |
80 | /* These ones take globs */ | |
17493fa5 | 81 | WRITE_FILE = 'w', |
b705ab6a ZJS |
82 | SET_XATTR = 't', |
83 | RECURSIVE_SET_XATTR = 'T', | |
84 | SET_ACL = 'a', | |
85 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
86 | SET_ATTRIBUTE = 'h', |
87 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 88 | IGNORE_PATH = 'x', |
78a92a5a | 89 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 90 | REMOVE_PATH = 'r', |
a8d88783 | 91 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 92 | RELABEL_PATH = 'z', |
e73a03e0 | 93 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 94 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 95 | } ItemType; |
3b63d2d3 LP |
96 | |
97 | typedef struct Item { | |
66ccd038 | 98 | ItemType type; |
3b63d2d3 LP |
99 | |
100 | char *path; | |
468d726b | 101 | char *argument; |
ebf4e801 | 102 | char **xattrs; |
f8eeeaf9 ZJS |
103 | #ifdef HAVE_ACL |
104 | acl_t acl_access; | |
105 | acl_t acl_default; | |
106 | #endif | |
5008d581 LP |
107 | uid_t uid; |
108 | gid_t gid; | |
3b63d2d3 LP |
109 | mode_t mode; |
110 | usec_t age; | |
111 | ||
468d726b | 112 | dev_t major_minor; |
88ec4dfa LP |
113 | unsigned attribute_value; |
114 | unsigned attribute_mask; | |
468d726b | 115 | |
3b63d2d3 LP |
116 | bool uid_set:1; |
117 | bool gid_set:1; | |
118 | bool mode_set:1; | |
119 | bool age_set:1; | |
abef3f91 | 120 | bool mask_perms:1; |
88ec4dfa | 121 | bool attribute_set:1; |
24f3a374 LP |
122 | |
123 | bool keep_first_level:1; | |
1910cd0e | 124 | |
2e78fa79 LP |
125 | bool force:1; |
126 | ||
1910cd0e | 127 | bool done:1; |
3b63d2d3 LP |
128 | } Item; |
129 | ||
3f93da98 ZJS |
130 | typedef struct ItemArray { |
131 | Item *items; | |
132 | size_t count; | |
133 | size_t size; | |
134 | } ItemArray; | |
135 | ||
3b63d2d3 LP |
136 | static bool arg_create = false; |
137 | static bool arg_clean = false; | |
138 | static bool arg_remove = false; | |
81815651 | 139 | static bool arg_boot = false; |
3b63d2d3 | 140 | |
7bc040fa LP |
141 | static char **arg_include_prefixes = NULL; |
142 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 143 | static char *arg_root = NULL; |
fba6e687 | 144 | |
7f0a55d4 | 145 | static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles"); |
9125670f | 146 | |
3b63d2d3 LP |
147 | #define MAX_DEPTH 256 |
148 | ||
ef43a391 | 149 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
150 | static Set *unix_sockets = NULL; |
151 | ||
bd550f78 LP |
152 | static const Specifier specifier_table[] = { |
153 | { 'm', specifier_machine_id, NULL }, | |
154 | { 'b', specifier_boot_id, NULL }, | |
155 | { 'H', specifier_host_name, NULL }, | |
156 | { 'v', specifier_kernel_release, NULL }, | |
157 | {} | |
158 | }; | |
159 | ||
66ccd038 | 160 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
161 | return IN_SET(t, |
162 | WRITE_FILE, | |
163 | IGNORE_PATH, | |
164 | IGNORE_DIRECTORY_PATH, | |
165 | REMOVE_PATH, | |
166 | RECURSIVE_REMOVE_PATH, | |
e73a03e0 | 167 | ADJUST_MODE, |
cde684a2 | 168 | RELABEL_PATH, |
b705ab6a ZJS |
169 | RECURSIVE_RELABEL_PATH, |
170 | SET_XATTR, | |
171 | RECURSIVE_SET_XATTR, | |
172 | SET_ACL, | |
34f64536 LP |
173 | RECURSIVE_SET_ACL, |
174 | SET_ATTRIBUTE, | |
175 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
176 | } |
177 | ||
3f93da98 ZJS |
178 | static bool takes_ownership(ItemType t) { |
179 | return IN_SET(t, | |
180 | CREATE_FILE, | |
181 | TRUNCATE_FILE, | |
182 | CREATE_DIRECTORY, | |
183 | TRUNCATE_DIRECTORY, | |
184 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
185 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
186 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
187 | CREATE_FIFO, |
188 | CREATE_SYMLINK, | |
189 | CREATE_CHAR_DEVICE, | |
190 | CREATE_BLOCK_DEVICE, | |
191 | COPY_FILES, | |
3f93da98 ZJS |
192 | WRITE_FILE, |
193 | IGNORE_PATH, | |
194 | IGNORE_DIRECTORY_PATH, | |
195 | REMOVE_PATH, | |
196 | RECURSIVE_REMOVE_PATH); | |
197 | } | |
198 | ||
ef43a391 | 199 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 200 | ItemArray *j; |
b8bb3e8f LP |
201 | Iterator i; |
202 | ||
ef43a391 | 203 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
204 | unsigned n; |
205 | ||
206 | for (n = 0; n < j->count; n++) { | |
207 | Item *item = j->items + n; | |
208 | ||
209 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
210 | return item; | |
211 | } | |
212 | } | |
b8bb3e8f LP |
213 | |
214 | return NULL; | |
215 | } | |
216 | ||
17b90525 | 217 | static void load_unix_sockets(void) { |
7fd1b19b | 218 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
219 | char line[LINE_MAX]; |
220 | ||
221 | if (unix_sockets) | |
222 | return; | |
223 | ||
224 | /* We maintain a cache of the sockets we found in | |
225 | * /proc/net/unix to speed things up a little. */ | |
226 | ||
d5099efc | 227 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 228 | if (!unix_sockets) |
17b90525 LP |
229 | return; |
230 | ||
fdcad0c2 LP |
231 | f = fopen("/proc/net/unix", "re"); |
232 | if (!f) | |
17b90525 LP |
233 | return; |
234 | ||
fdcad0c2 LP |
235 | /* Skip header */ |
236 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
237 | goto fail; |
238 | ||
239 | for (;;) { | |
240 | char *p, *s; | |
241 | int k; | |
242 | ||
fdcad0c2 | 243 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
244 | break; |
245 | ||
246 | truncate_nl(line); | |
247 | ||
fdcad0c2 LP |
248 | p = strchr(line, ':'); |
249 | if (!p) | |
250 | continue; | |
251 | ||
252 | if (strlen(p) < 37) | |
17b90525 LP |
253 | continue; |
254 | ||
fdcad0c2 | 255 | p += 37; |
17b90525 | 256 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 257 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
258 | p += strspn(p, WHITESPACE); |
259 | ||
260 | if (*p != '/') | |
261 | continue; | |
262 | ||
fdcad0c2 LP |
263 | s = strdup(p); |
264 | if (!s) | |
17b90525 LP |
265 | goto fail; |
266 | ||
4ff21d85 LP |
267 | path_kill_slashes(s); |
268 | ||
ef42202a ZJS |
269 | k = set_consume(unix_sockets, s); |
270 | if (k < 0 && k != -EEXIST) | |
271 | goto fail; | |
17b90525 LP |
272 | } |
273 | ||
274 | return; | |
275 | ||
276 | fail: | |
277 | set_free_free(unix_sockets); | |
278 | unix_sockets = NULL; | |
17b90525 LP |
279 | } |
280 | ||
281 | static bool unix_socket_alive(const char *fn) { | |
282 | assert(fn); | |
283 | ||
284 | load_unix_sockets(); | |
285 | ||
286 | if (unix_sockets) | |
287 | return !!set_get(unix_sockets, (char*) fn); | |
288 | ||
289 | /* We don't know, so assume yes */ | |
290 | return true; | |
291 | } | |
292 | ||
99d680ac | 293 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 294 | |
2695c5c4 | 295 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
296 | int mount_id_parent, mount_id; |
297 | int r_p, r; | |
298 | ||
370c860f | 299 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
300 | if (r_p < 0) |
301 | r_p = -errno; | |
302 | ||
370c860f DR |
303 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
304 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
305 | if (r < 0) |
306 | r = -errno; | |
307 | ||
308 | /* got no handle; make no assumptions, return error */ | |
309 | if (r_p < 0 && r < 0) | |
310 | return r_p; | |
311 | ||
312 | /* got both handles; if they differ, it is a mount point */ | |
313 | if (r_p >= 0 && r >= 0) | |
314 | return mount_id_parent != mount_id; | |
315 | ||
316 | /* got only one handle; assume different mount points if one | |
317 | * of both queries was not supported by the filesystem */ | |
e7aab541 | 318 | if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
99d680ac KS |
319 | return true; |
320 | ||
321 | /* return error */ | |
322 | if (r_p < 0) | |
323 | return r_p; | |
324 | return r; | |
325 | } | |
326 | ||
df99a9ef ZJS |
327 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
328 | DIR *dir; | |
329 | ||
330 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
331 | if (dir) |
332 | return dir; | |
333 | ||
334 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
335 | if (errno != EPERM) | |
336 | return NULL; | |
337 | ||
338 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
339 | if (!dir) | |
340 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
341 | |
342 | return dir; | |
343 | } | |
344 | ||
345 | static DIR* opendir_nomod(const char *path) { | |
346 | return xopendirat_nomod(AT_FDCWD, path); | |
347 | } | |
348 | ||
3b63d2d3 | 349 | static int dir_cleanup( |
78a92a5a | 350 | Item *i, |
3b63d2d3 LP |
351 | const char *p, |
352 | DIR *d, | |
353 | const struct stat *ds, | |
354 | usec_t cutoff, | |
355 | dev_t rootdev, | |
356 | bool mountpoint, | |
24f3a374 | 357 | int maxdepth, |
265ffa1e LP |
358 | bool keep_this_level) { |
359 | ||
3b63d2d3 LP |
360 | struct dirent *dent; |
361 | struct timespec times[2]; | |
362 | bool deleted = false; | |
3b63d2d3 LP |
363 | int r = 0; |
364 | ||
365 | while ((dent = readdir(d))) { | |
366 | struct stat s; | |
367 | usec_t age; | |
7fd1b19b | 368 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 369 | |
7fcb4b9b | 370 | if (STR_IN_SET(dent->d_name, ".", "..")) |
3b63d2d3 | 371 | continue; |
5008d581 | 372 | |
3b63d2d3 | 373 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
374 | if (errno == ENOENT) |
375 | continue; | |
5008d581 | 376 | |
ca2f4176 KS |
377 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
378 | if (errno == EACCES) | |
56f64d95 | 379 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 380 | else |
56f64d95 | 381 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 382 | r = -errno; |
3b63d2d3 LP |
383 | continue; |
384 | } | |
385 | ||
386 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
387 | if (s.st_dev != rootdev) { |
388 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 389 | continue; |
582deb84 | 390 | } |
3b63d2d3 | 391 | |
99d680ac KS |
392 | /* Try to detect bind mounts of the same filesystem instance; they |
393 | * do not differ in device major/minors. This type of query is not | |
394 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
395 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
396 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
397 | p, dent->d_name); | |
99d680ac | 398 | continue; |
582deb84 | 399 | } |
99d680ac | 400 | |
3b63d2d3 | 401 | /* Do not delete read-only files owned by root */ |
582deb84 ZJS |
402 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
403 | log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); | |
3b63d2d3 | 404 | continue; |
582deb84 | 405 | } |
3b63d2d3 | 406 | |
cde684a2 LP |
407 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
408 | if (!sub_path) { | |
0d0f0c50 | 409 | r = log_oom(); |
3b63d2d3 LP |
410 | goto finish; |
411 | } | |
412 | ||
413 | /* Is there an item configured for this path? */ | |
ef43a391 | 414 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 415 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 416 | continue; |
582deb84 | 417 | } |
3b63d2d3 | 418 | |
582deb84 ZJS |
419 | if (find_glob(globs, sub_path)) { |
420 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 421 | continue; |
582deb84 | 422 | } |
b8bb3e8f | 423 | |
3b63d2d3 LP |
424 | if (S_ISDIR(s.st_mode)) { |
425 | ||
426 | if (mountpoint && | |
427 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
428 | s.st_uid == 0) { |
429 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 430 | continue; |
582deb84 | 431 | } |
3b63d2d3 LP |
432 | |
433 | if (maxdepth <= 0) | |
582deb84 | 434 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 435 | else { |
7fd1b19b | 436 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
437 | int q; |
438 | ||
df99a9ef | 439 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 440 | if (!sub_dir) { |
582deb84 ZJS |
441 | if (errno != ENOENT) |
442 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
443 | |
444 | continue; | |
445 | } | |
446 | ||
78a92a5a | 447 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
448 | if (q < 0) |
449 | r = q; | |
450 | } | |
451 | ||
24f3a374 LP |
452 | /* Note: if you are wondering why we don't |
453 | * support the sticky bit for excluding | |
454 | * directories from cleaning like we do it for | |
455 | * other file system objects: well, the sticky | |
456 | * bit already has a meaning for directories, | |
457 | * so we don't want to overload that. */ | |
458 | ||
582deb84 ZJS |
459 | if (keep_this_level) { |
460 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 461 | continue; |
582deb84 | 462 | } |
24f3a374 | 463 | |
3b63d2d3 | 464 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
465 | age = timespec_load(&s.st_mtim); |
466 | if (age >= cutoff) { | |
467 | char a[FORMAT_TIMESTAMP_MAX]; | |
468 | /* Follows spelling in stat(1). */ | |
469 | log_debug("Directory \"%s\": modify time %s is too new.", | |
470 | sub_path, | |
471 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 472 | continue; |
582deb84 ZJS |
473 | } |
474 | ||
475 | age = timespec_load(&s.st_atim); | |
476 | if (age >= cutoff) { | |
477 | char a[FORMAT_TIMESTAMP_MAX]; | |
478 | log_debug("Directory \"%s\": access time %s is too new.", | |
479 | sub_path, | |
480 | format_timestamp_us(a, sizeof(a), age)); | |
481 | continue; | |
482 | } | |
3b63d2d3 | 483 | |
61253220 ZJS |
484 | log_debug("Removing directory \"%s\".", sub_path); |
485 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
486 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
487 | log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
488 | r = -errno; | |
3b63d2d3 | 489 | } |
3b63d2d3 LP |
490 | |
491 | } else { | |
9c73736d LP |
492 | /* Skip files for which the sticky bit is |
493 | * set. These are semantics we define, and are | |
494 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
495 | * specification for details. */ | |
582deb84 ZJS |
496 | if (s.st_mode & S_ISVTX) { |
497 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 498 | continue; |
582deb84 | 499 | } |
9c73736d | 500 | |
582deb84 | 501 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
502 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
503 | ".journal", | |
504 | "aquota.user", | |
505 | "aquota.group")) { | |
582deb84 | 506 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 507 | continue; |
582deb84 | 508 | } |
3b63d2d3 | 509 | |
17b90525 | 510 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
511 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
512 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 513 | continue; |
582deb84 | 514 | } |
17b90525 | 515 | |
78ab08eb | 516 | /* Ignore device nodes */ |
582deb84 ZJS |
517 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
518 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 519 | continue; |
582deb84 | 520 | } |
78ab08eb | 521 | |
24f3a374 LP |
522 | /* Keep files on this level around if this is |
523 | * requested */ | |
582deb84 ZJS |
524 | if (keep_this_level) { |
525 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 526 | continue; |
582deb84 | 527 | } |
24f3a374 | 528 | |
582deb84 ZJS |
529 | age = timespec_load(&s.st_mtim); |
530 | if (age >= cutoff) { | |
531 | char a[FORMAT_TIMESTAMP_MAX]; | |
532 | /* Follows spelling in stat(1). */ | |
533 | log_debug("File \"%s\": modify time %s is too new.", | |
534 | sub_path, | |
535 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 536 | continue; |
582deb84 | 537 | } |
3b63d2d3 | 538 | |
582deb84 ZJS |
539 | age = timespec_load(&s.st_atim); |
540 | if (age >= cutoff) { | |
541 | char a[FORMAT_TIMESTAMP_MAX]; | |
542 | log_debug("File \"%s\": access time %s is too new.", | |
543 | sub_path, | |
544 | format_timestamp_us(a, sizeof(a), age)); | |
545 | continue; | |
546 | } | |
3b63d2d3 | 547 | |
582deb84 ZJS |
548 | age = timespec_load(&s.st_ctim); |
549 | if (age >= cutoff) { | |
550 | char a[FORMAT_TIMESTAMP_MAX]; | |
551 | log_debug("File \"%s\": change time %s is too new.", | |
552 | sub_path, | |
553 | format_timestamp_us(a, sizeof(a), age)); | |
554 | continue; | |
3b63d2d3 LP |
555 | } |
556 | ||
582deb84 ZJS |
557 | log_debug("unlink \"%s\"", sub_path); |
558 | ||
559 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
560 | if (errno != ENOENT) | |
561 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
562 | ||
3b63d2d3 LP |
563 | deleted = true; |
564 | } | |
565 | } | |
566 | ||
567 | finish: | |
568 | if (deleted) { | |
582deb84 ZJS |
569 | usec_t age1, age2; |
570 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
571 | ||
3b63d2d3 LP |
572 | /* Restore original directory timestamps */ |
573 | times[0] = ds->st_atim; | |
574 | times[1] = ds->st_mtim; | |
575 | ||
582deb84 ZJS |
576 | age1 = timespec_load(&ds->st_atim); |
577 | age2 = timespec_load(&ds->st_mtim); | |
578 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
579 | p, | |
580 | format_timestamp_us(a, sizeof(a), age1), | |
581 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 582 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 583 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
584 | } |
585 | ||
3b63d2d3 LP |
586 | return r; |
587 | } | |
588 | ||
b705ab6a | 589 | static int path_set_perms(Item *i, const char *path) { |
48b8aaa8 | 590 | _cleanup_close_ int fd = -1; |
1924a97d | 591 | struct stat st; |
1924a97d | 592 | |
cde684a2 LP |
593 | assert(i); |
594 | assert(path); | |
595 | ||
48b8aaa8 LP |
596 | /* We open the file with O_PATH here, to make the operation |
597 | * somewhat atomic. Also there's unfortunately no fchmodat() | |
598 | * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via | |
599 | * O_PATH. */ | |
600 | ||
601 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); | |
602 | if (fd < 0) | |
603 | return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); | |
604 | ||
605 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
606 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1924a97d | 607 | |
48b8aaa8 LP |
608 | if (S_ISLNK(st.st_mode)) |
609 | log_debug("Skipping mode an owner fix for symlink %s.", path); | |
610 | else { | |
611 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; | |
612 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
abef3f91 | 613 | |
48b8aaa8 LP |
614 | /* not using i->path directly because it may be a glob */ |
615 | if (i->mode_set) { | |
616 | mode_t m = i->mode; | |
617 | ||
618 | if (i->mask_perms) { | |
619 | if (!(st.st_mode & 0111)) | |
620 | m &= ~0111; | |
621 | if (!(st.st_mode & 0222)) | |
7d6884b6 | 622 | m &= ~0222; |
48b8aaa8 LP |
623 | if (!(st.st_mode & 0444)) |
624 | m &= ~0444; | |
625 | if (!S_ISDIR(st.st_mode)) | |
626 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
627 | } | |
abef3f91 | 628 | |
48b8aaa8 LP |
629 | if (m == (st.st_mode & 07777)) |
630 | log_debug("\"%s\" has right mode %o", path, st.st_mode); | |
631 | else { | |
632 | log_debug("chmod \"%s\" to mode %o", path, m); | |
633 | if (chmod(fn, m) < 0) | |
634 | return log_error_errno(errno, "chmod(%s) failed: %m", path); | |
635 | } | |
062e01bb | 636 | } |
062e01bb | 637 | |
48b8aaa8 LP |
638 | if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
639 | (i->uid_set || i->gid_set)) { | |
640 | log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, | |
641 | path, | |
642 | i->uid_set ? i->uid : UID_INVALID, | |
643 | i->gid_set ? i->gid : GID_INVALID); | |
644 | if (chown(fn, | |
645 | i->uid_set ? i->uid : UID_INVALID, | |
646 | i->gid_set ? i->gid : GID_INVALID) < 0) | |
7d6884b6 | 647 | return log_error_errno(errno, "chown(%s) failed: %m", path); |
48b8aaa8 | 648 | } |
582deb84 | 649 | } |
062e01bb | 650 | |
48b8aaa8 LP |
651 | fd = safe_close(fd); |
652 | ||
9855d6c7 | 653 | return label_fix(path, false, false); |
062e01bb MS |
654 | } |
655 | ||
bd550f78 | 656 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
657 | const char *p; |
658 | int r; | |
659 | ||
660 | assert(i); | |
505ef0e3 | 661 | assert(i->argument); |
ebf4e801 | 662 | |
ebf4e801 MW |
663 | p = i->argument; |
664 | ||
4034a06d | 665 | for (;;) { |
bd550f78 | 666 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
4034a06d | 667 | |
12ba2c44 | 668 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 669 | if (r < 0) |
bd550f78 | 670 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
671 | if (r <= 0) |
672 | break; | |
505ef0e3 | 673 | |
bd550f78 LP |
674 | r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
675 | if (r < 0) | |
676 | return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); | |
677 | ||
678 | r = split_pair(xattr_replaced, "=", &name, &value); | |
ebf4e801 | 679 | if (r < 0) { |
4034a06d | 680 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
681 | continue; |
682 | } | |
505ef0e3 | 683 | |
4034a06d | 684 | if (isempty(name) || isempty(value)) { |
bd550f78 | 685 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
686 | continue; |
687 | } | |
505ef0e3 | 688 | |
4034a06d | 689 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 690 | return log_oom(); |
505ef0e3 | 691 | |
4034a06d | 692 | name = value = NULL; |
ebf4e801 MW |
693 | } |
694 | ||
4034a06d | 695 | return 0; |
ebf4e801 MW |
696 | } |
697 | ||
b705ab6a | 698 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
699 | char **name, **value; |
700 | ||
701 | assert(i); | |
702 | assert(path); | |
703 | ||
ebf4e801 MW |
704 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
705 | int n; | |
505ef0e3 | 706 | |
ebf4e801 | 707 | n = strlen(*value); |
bd550f78 | 708 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
ebf4e801 | 709 | if (lsetxattr(path, *name, *value, n, 0) < 0) { |
bd550f78 | 710 | log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path); |
ebf4e801 MW |
711 | return -errno; |
712 | } | |
713 | } | |
714 | return 0; | |
715 | } | |
716 | ||
bd550f78 | 717 | static int parse_acls_from_arg(Item *item) { |
f8eeeaf9 ZJS |
718 | #ifdef HAVE_ACL |
719 | int r; | |
f8eeeaf9 ZJS |
720 | |
721 | assert(item); | |
722 | ||
50d9e46d ZJS |
723 | /* If force (= modify) is set, we will not modify the acl |
724 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 725 | |
50d9e46d | 726 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 727 | if (r < 0) |
4034a06d | 728 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
729 | #else |
730 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
731 | #endif | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
35888b67 | 736 | #ifdef HAVE_ACL |
48b8aaa8 LP |
737 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
738 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 739 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
740 | int r; |
741 | ||
d873e877 HPD |
742 | /* Returns 0 for success, positive error if already warned, |
743 | * negative error otherwise. */ | |
744 | ||
50d9e46d | 745 | if (modify) { |
dd4105b0 | 746 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
747 | if (r < 0) |
748 | return r; | |
50d9e46d | 749 | |
dd4105b0 ZJS |
750 | r = calc_acl_mask_if_needed(&dup); |
751 | if (r < 0) | |
752 | return r; | |
753 | } else { | |
754 | dup = acl_dup(acl); | |
755 | if (!dup) | |
756 | return -errno; | |
757 | ||
758 | /* the mask was already added earlier if needed */ | |
759 | } | |
760 | ||
761 | r = add_base_acls_if_needed(&dup, path); | |
762 | if (r < 0) | |
763 | return r; | |
764 | ||
582deb84 | 765 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 766 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 767 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 768 | strna(t), pretty); |
50d9e46d | 769 | |
582deb84 ZJS |
770 | r = acl_set_file(path, type, dup); |
771 | if (r < 0) | |
3ea40b78 LP |
772 | /* Return positive to indicate we already warned */ |
773 | return -log_error_errno(errno, | |
774 | "Setting %s ACL \"%s\" on %s failed: %m", | |
775 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 776 | strna(t), pretty); |
d873e877 | 777 | |
582deb84 | 778 | return 0; |
50d9e46d | 779 | } |
35888b67 | 780 | #endif |
50d9e46d | 781 | |
b705ab6a | 782 | static int path_set_acls(Item *item, const char *path) { |
d873e877 | 783 | int r = 0; |
f8eeeaf9 | 784 | #ifdef HAVE_ACL |
48b8aaa8 LP |
785 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
786 | _cleanup_close_ int fd = -1; | |
787 | struct stat st; | |
788 | ||
f8eeeaf9 ZJS |
789 | assert(item); |
790 | assert(path); | |
791 | ||
48b8aaa8 LP |
792 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); |
793 | if (fd < 0) | |
794 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
795 | ||
796 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
797 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
798 | ||
799 | if (S_ISLNK(st.st_mode)) { | |
800 | log_debug("Skipping ACL fix for symlink %s.", path); | |
801 | return 0; | |
802 | } | |
803 | ||
804 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
805 | ||
d873e877 | 806 | if (item->acl_access) |
48b8aaa8 | 807 | r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 808 | |
d873e877 | 809 | if (r == 0 && item->acl_default) |
48b8aaa8 | 810 | r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 811 | |
d873e877 HPD |
812 | if (r > 0) |
813 | return -r; /* already warned */ | |
15411c0c | 814 | else if (r == -EOPNOTSUPP) { |
d873e877 HPD |
815 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
816 | return 0; | |
817 | } else if (r < 0) | |
818 | log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
819 | #endif | |
820 | return r; | |
f8eeeaf9 ZJS |
821 | } |
822 | ||
88ec4dfa LP |
823 | #define ATTRIBUTES_ALL \ |
824 | (FS_NOATIME_FL | \ | |
825 | FS_SYNC_FL | \ | |
826 | FS_DIRSYNC_FL | \ | |
827 | FS_APPEND_FL | \ | |
828 | FS_COMPR_FL | \ | |
829 | FS_NODUMP_FL | \ | |
830 | FS_EXTENT_FL | \ | |
831 | FS_IMMUTABLE_FL | \ | |
832 | FS_JOURNAL_DATA_FL | \ | |
833 | FS_SECRM_FL | \ | |
834 | FS_UNRM_FL | \ | |
835 | FS_NOTAIL_FL | \ | |
836 | FS_TOPDIR_FL | \ | |
837 | FS_NOCOW_FL) | |
838 | ||
bd550f78 | 839 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
840 | |
841 | static const struct { | |
842 | char character; | |
843 | unsigned value; | |
844 | } attributes[] = { | |
845 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
846 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
847 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
848 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
849 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
850 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
851 | { 'e', FS_EXTENT_FL }, /* Top of directory hierarchies*/ | |
852 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ | |
853 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
854 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
855 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
856 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
857 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ | |
858 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ | |
22c3a6ca | 859 | }; |
88ec4dfa | 860 | |
22c3a6ca GB |
861 | enum { |
862 | MODE_ADD, | |
863 | MODE_DEL, | |
864 | MODE_SET | |
865 | } mode = MODE_ADD; | |
22c3a6ca | 866 | |
88ec4dfa LP |
867 | unsigned value = 0, mask = 0; |
868 | const char *p; | |
22c3a6ca | 869 | |
88ec4dfa LP |
870 | assert(item); |
871 | ||
872 | p = item->argument; | |
873 | if (p) { | |
874 | if (*p == '+') { | |
875 | mode = MODE_ADD; | |
876 | p++; | |
877 | } else if (*p == '-') { | |
878 | mode = MODE_DEL; | |
879 | p++; | |
880 | } else if (*p == '=') { | |
881 | mode = MODE_SET; | |
882 | p++; | |
883 | } | |
22c3a6ca GB |
884 | } |
885 | ||
88ec4dfa LP |
886 | if (isempty(p) && mode != MODE_SET) { |
887 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
888 | return -EINVAL; |
889 | } | |
88ec4dfa LP |
890 | |
891 | for (; p && *p ; p++) { | |
892 | unsigned i, v; | |
893 | ||
894 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
895 | if (*p == attributes[i].character) | |
896 | break; | |
897 | ||
898 | if (i >= ELEMENTSOF(attributes)) { | |
899 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
900 | return -EINVAL; |
901 | } | |
88ec4dfa LP |
902 | |
903 | v = attributes[i].value; | |
904 | ||
22c3a6ca | 905 | if (mode == MODE_ADD || mode == MODE_SET) |
88ec4dfa | 906 | value |= v; |
22c3a6ca | 907 | else |
88ec4dfa LP |
908 | value &= ~v; |
909 | ||
910 | mask |= v; | |
22c3a6ca GB |
911 | } |
912 | ||
913 | if (mode == MODE_SET) | |
88ec4dfa | 914 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 915 | |
88ec4dfa | 916 | assert(mask != 0); |
22c3a6ca | 917 | |
88ec4dfa LP |
918 | item->attribute_mask = mask; |
919 | item->attribute_value = value; | |
920 | item->attribute_set = true; | |
22c3a6ca GB |
921 | |
922 | return 0; | |
22c3a6ca GB |
923 | } |
924 | ||
88ec4dfa | 925 | static int path_set_attribute(Item *item, const char *path) { |
22c3a6ca | 926 | _cleanup_close_ int fd = -1; |
22c3a6ca | 927 | struct stat st; |
88ec4dfa LP |
928 | unsigned f; |
929 | int r; | |
22c3a6ca | 930 | |
88ec4dfa | 931 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 932 | return 0; |
22c3a6ca | 933 | |
48b8aaa8 LP |
934 | fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
935 | if (fd < 0) { | |
936 | if (errno == ELOOP) | |
937 | return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); | |
938 | ||
88ec4dfa | 939 | return log_error_errno(errno, "Cannot open '%s': %m", path); |
48b8aaa8 | 940 | } |
22c3a6ca | 941 | |
88ec4dfa LP |
942 | if (fstat(fd, &st) < 0) |
943 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
944 | ||
945 | /* Issuing the file attribute ioctls on device nodes is not | |
946 | * safe, as that will be delivered to the drivers, not the | |
947 | * file system containing the device node. */ | |
948 | if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { | |
949 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); | |
950 | return -EINVAL; | |
951 | } | |
952 | ||
953 | f = item->attribute_value & item->attribute_mask; | |
954 | ||
955 | /* Mask away directory-specific flags */ | |
22c3a6ca GB |
956 | if (!S_ISDIR(st.st_mode)) |
957 | f &= ~FS_DIRSYNC_FL; | |
88ec4dfa LP |
958 | |
959 | r = chattr_fd(fd, f, item->attribute_mask); | |
22c3a6ca | 960 | if (r < 0) |
ad75a97f LP |
961 | log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING, |
962 | r, | |
963 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
964 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
965 | |
966 | return 0; | |
967 | } | |
968 | ||
d4e9eb91 | 969 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
970 | _cleanup_close_ int fd = -1; |
971 | int flags, r = 0; | |
d4e9eb91 | 972 | struct stat st; |
d4e9eb91 | 973 | |
874f1947 LP |
974 | assert(i); |
975 | assert(path); | |
976 | ||
43ad6e31 LP |
977 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
978 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 979 | |
43ad6e31 | 980 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 981 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 982 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 983 | mac_selinux_create_file_clear(); |
5c0d398d | 984 | } |
d4e9eb91 DR |
985 | |
986 | if (fd < 0) { | |
582deb84 ZJS |
987 | if (i->type == WRITE_FILE && errno == ENOENT) { |
988 | log_debug_errno(errno, "Not writing \"%s\": %m", path); | |
d4e9eb91 | 989 | return 0; |
582deb84 | 990 | } |
d4e9eb91 | 991 | |
f44b28fd MO |
992 | r = -errno; |
993 | if (!i->argument && errno == EROFS && stat(path, &st) == 0 && | |
994 | (i->type == CREATE_FILE || st.st_size == 0)) | |
995 | goto check_mode; | |
996 | ||
997 | return log_error_errno(r, "Failed to create file %s: %m", path); | |
d4e9eb91 DR |
998 | } |
999 | ||
1000 | if (i->argument) { | |
bd550f78 | 1001 | _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
582deb84 | 1002 | |
4034a06d | 1003 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 1004 | |
527b7a42 LP |
1005 | r = cunescape(i->argument, 0, &unescaped); |
1006 | if (r < 0) | |
1007 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
d4e9eb91 | 1008 | |
bd550f78 LP |
1009 | r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
1010 | if (r < 0) | |
1011 | return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); | |
1012 | ||
1013 | r = loop_write(fd, replaced, strlen(replaced), false); | |
582deb84 ZJS |
1014 | if (r < 0) |
1015 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1016 | } else | |
1017 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1018 | |
43ad6e31 | 1019 | fd = safe_close(fd); |
3612fbc1 | 1020 | |
4a62c710 MS |
1021 | if (stat(path, &st) < 0) |
1022 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 | 1023 | |
f44b28fd | 1024 | check_mode: |
d4e9eb91 DR |
1025 | if (!S_ISREG(st.st_mode)) { |
1026 | log_error("%s is not a file.", path); | |
1027 | return -EEXIST; | |
1028 | } | |
1029 | ||
b705ab6a | 1030 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1031 | if (r < 0) |
1032 | return r; | |
1033 | ||
1034 | return 0; | |
1035 | } | |
1036 | ||
081043cf ZJS |
1037 | typedef int (*action_t)(Item *, const char *); |
1038 | ||
1039 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 1040 | _cleanup_closedir_ DIR *d; |
e73a03e0 LP |
1041 | int r = 0; |
1042 | ||
1043 | assert(i); | |
1044 | assert(path); | |
a8d88783 MS |
1045 | |
1046 | /* This returns the first error we run into, but nevertheless | |
1047 | * tries to go on */ | |
1048 | ||
df99a9ef ZJS |
1049 | d = opendir_nomod(path); |
1050 | if (!d) | |
e73a03e0 | 1051 | return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
a8d88783 MS |
1052 | |
1053 | for (;;) { | |
e73a03e0 | 1054 | _cleanup_free_ char *p = NULL; |
7d5e9c0f | 1055 | struct dirent *de; |
e73a03e0 | 1056 | int q; |
a8d88783 | 1057 | |
d78096b3 FW |
1058 | errno = 0; |
1059 | de = readdir(d); | |
e73a03e0 LP |
1060 | if (!de) { |
1061 | if (errno != 0 && r == 0) | |
1062 | r = -errno; | |
a8d88783 | 1063 | |
a8d88783 | 1064 | break; |
e73a03e0 | 1065 | } |
a8d88783 | 1066 | |
7fcb4b9b | 1067 | if (STR_IN_SET(de->d_name, ".", "..")) |
a8d88783 MS |
1068 | continue; |
1069 | ||
e73a03e0 LP |
1070 | p = strjoin(path, "/", de->d_name, NULL); |
1071 | if (!p) | |
1072 | return -ENOMEM; | |
a8d88783 | 1073 | |
081043cf | 1074 | q = action(i, p); |
e73a03e0 LP |
1075 | if (q < 0 && q != -ENOENT && r == 0) |
1076 | r = q; | |
a8d88783 | 1077 | |
e73a03e0 | 1078 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 1079 | q = item_do_children(i, p, action); |
e73a03e0 LP |
1080 | if (q < 0 && r == 0) |
1081 | r = q; | |
a8d88783 | 1082 | } |
a8d88783 MS |
1083 | } |
1084 | ||
e73a03e0 | 1085 | return r; |
a8d88783 MS |
1086 | } |
1087 | ||
081043cf | 1088 | static int glob_item(Item *i, action_t action, bool recursive) { |
df99a9ef | 1089 | _cleanup_globfree_ glob_t g = { |
ebf31a1f ZJS |
1090 | .gl_closedir = (void (*)(void *)) closedir, |
1091 | .gl_readdir = (struct dirent *(*)(void *)) readdir, | |
1092 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
df99a9ef ZJS |
1093 | .gl_lstat = lstat, |
1094 | .gl_stat = stat, | |
1095 | }; | |
e73a03e0 | 1096 | int r = 0, k; |
99e68c0b MS |
1097 | char **fn; |
1098 | ||
99e68c0b | 1099 | errno = 0; |
df99a9ef | 1100 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); |
081043cf ZJS |
1101 | if (k != 0 && k != GLOB_NOMATCH) |
1102 | return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1103 | |
c84a9488 ZJS |
1104 | STRV_FOREACH(fn, g.gl_pathv) { |
1105 | k = action(i, *fn); | |
e73a03e0 | 1106 | if (k < 0 && r == 0) |
99e68c0b | 1107 | r = k; |
081043cf ZJS |
1108 | |
1109 | if (recursive) { | |
1110 | k = item_do_children(i, *fn, action); | |
1111 | if (k < 0 && r == 0) | |
1112 | r = k; | |
1113 | } | |
c84a9488 | 1114 | } |
99e68c0b | 1115 | |
99e68c0b MS |
1116 | return r; |
1117 | } | |
1118 | ||
294929f8 ZJS |
1119 | typedef enum { |
1120 | CREATION_NORMAL, | |
1121 | CREATION_EXISTING, | |
1122 | CREATION_FORCE, | |
7a7d5db7 LP |
1123 | _CREATION_MODE_MAX, |
1124 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1125 | } CreationMode; |
1126 | ||
7a7d5db7 LP |
1127 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1128 | [CREATION_NORMAL] = "Created", | |
1129 | [CREATION_EXISTING] = "Found existing", | |
1130 | [CREATION_FORCE] = "Created replacement", | |
1131 | }; | |
1132 | ||
1133 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1134 | |
3b63d2d3 | 1135 | static int create_item(Item *i) { |
75c2a9fd | 1136 | _cleanup_free_ char *resolved = NULL; |
3b63d2d3 | 1137 | struct stat st; |
df28bc08 | 1138 | int r = 0; |
294929f8 | 1139 | CreationMode creation; |
5008d581 | 1140 | |
3b63d2d3 | 1141 | assert(i); |
5008d581 | 1142 | |
582deb84 ZJS |
1143 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1144 | ||
3b63d2d3 LP |
1145 | switch (i->type) { |
1146 | ||
1147 | case IGNORE_PATH: | |
78a92a5a | 1148 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1149 | case REMOVE_PATH: |
1150 | case RECURSIVE_REMOVE_PATH: | |
1151 | return 0; | |
5008d581 | 1152 | |
3b63d2d3 | 1153 | case CREATE_FILE: |
31ed59c5 | 1154 | case TRUNCATE_FILE: |
1845fdd9 DR |
1155 | r = write_one_file(i, i->path); |
1156 | if (r < 0) | |
1157 | return r; | |
1158 | break; | |
265ffa1e | 1159 | |
5c5ccf12 | 1160 | case COPY_FILES: { |
5c5ccf12 LP |
1161 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1162 | if (r < 0) | |
1163 | return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); | |
1164 | ||
1165 | log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); | |
1166 | r = copy_tree(resolved, i->path, false); | |
f44b28fd MO |
1167 | |
1168 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1169 | r = -EEXIST; | |
1170 | ||
849958d1 | 1171 | if (r < 0) { |
e156347e LP |
1172 | struct stat a, b; |
1173 | ||
8d3d7072 MS |
1174 | if (r != -EEXIST) |
1175 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1176 | |
5c5ccf12 LP |
1177 | if (stat(resolved, &a) < 0) |
1178 | return log_error_errno(errno, "stat(%s) failed: %m", resolved); | |
e156347e | 1179 | |
4a62c710 MS |
1180 | if (stat(i->path, &b) < 0) |
1181 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1182 | |
1183 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1184 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1185 | return 0; | |
1186 | } | |
849958d1 LP |
1187 | } |
1188 | ||
b705ab6a | 1189 | r = path_set_perms(i, i->path); |
849958d1 LP |
1190 | if (r < 0) |
1191 | return r; | |
1192 | ||
1193 | break; | |
1194 | ||
d4e9eb91 | 1195 | case WRITE_FILE: |
081043cf | 1196 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
1197 | if (r < 0) |
1198 | return r; | |
5008d581 | 1199 | |
3b63d2d3 LP |
1200 | break; |
1201 | ||
3b63d2d3 | 1202 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1203 | case TRUNCATE_DIRECTORY: |
1204 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1205 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1206 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
5008d581 | 1207 | |
d7b8eec7 | 1208 | RUN_WITH_UMASK(0000) |
5c0d398d | 1209 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1210 | |
5fb13eb5 LP |
1211 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
1212 | RUN_WITH_UMASK((~i->mode) & 0777) | |
d7b8eec7 | 1213 | r = btrfs_subvol_make(i->path); |
5fb13eb5 | 1214 | } else |
d7b8eec7 LP |
1215 | r = 0; |
1216 | ||
582deb84 | 1217 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1218 | RUN_WITH_UMASK(0000) |
1219 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1220 | |
e156347e | 1221 | if (r < 0) { |
7b135a73 | 1222 | int k; |
5008d581 | 1223 | |
7b135a73 LP |
1224 | if (r != -EEXIST && r != -EROFS) |
1225 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); | |
5008d581 | 1226 | |
7b135a73 LP |
1227 | k = is_dir(i->path, false); |
1228 | if (k == -ENOENT && r == -EROFS) | |
1229 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1230 | if (k < 0) | |
1231 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1232 | if (!k) { | |
1233 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1234 | return 0; |
1235 | } | |
294929f8 ZJS |
1236 | |
1237 | creation = CREATION_EXISTING; | |
1238 | } else | |
1239 | creation = CREATION_NORMAL; | |
7b135a73 | 1240 | |
7a7d5db7 | 1241 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1242 | |
5fb13eb5 LP |
1243 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1244 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
1245 | if (r == -ENOTTY) { | |
1246 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of unsupported file system or because directory is not a subvolume: %m", i->path); | |
1247 | return 0; | |
1248 | } | |
1249 | if (r == -EROFS) { | |
1250 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of read-only file system: %m", i->path); | |
1251 | return 0; | |
1252 | } | |
1253 | if (r < 0) | |
1254 | return log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1255 | if (r > 0) | |
1256 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); | |
1257 | if (r == 0) | |
1258 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); | |
1259 | } | |
1260 | ||
b705ab6a | 1261 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1262 | if (r < 0) |
1263 | return r; | |
3b63d2d3 LP |
1264 | |
1265 | break; | |
ee17ee7c LP |
1266 | |
1267 | case CREATE_FIFO: | |
1268 | ||
5c0d398d | 1269 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1270 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1271 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1272 | mac_selinux_create_file_clear(); |
5c0d398d | 1273 | } |
ee17ee7c | 1274 | |
1554afae | 1275 | if (r < 0) { |
4a62c710 MS |
1276 | if (errno != EEXIST) |
1277 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1278 | |
a542c4dc | 1279 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1280 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1281 | |
1554afae LP |
1282 | if (!S_ISFIFO(st.st_mode)) { |
1283 | ||
1284 | if (i->force) { | |
1554afae | 1285 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1286 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1287 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1288 | mac_selinux_create_file_clear(); |
1554afae LP |
1289 | } |
1290 | ||
f647962d MS |
1291 | if (r < 0) |
1292 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1293 | creation = CREATION_FORCE; |
1554afae | 1294 | } else { |
a542c4dc | 1295 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1296 | return 0; |
1297 | } | |
294929f8 ZJS |
1298 | } else |
1299 | creation = CREATION_EXISTING; | |
1300 | } else | |
1301 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1302 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1303 | |
b705ab6a | 1304 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1305 | if (r < 0) |
1306 | return r; | |
ee17ee7c LP |
1307 | |
1308 | break; | |
5c5ccf12 | 1309 | } |
a8d88783 | 1310 | |
5c5ccf12 | 1311 | case CREATE_SYMLINK: { |
5c5ccf12 LP |
1312 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1313 | if (r < 0) | |
1314 | return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); | |
468d726b | 1315 | |
ecabcf8b | 1316 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1317 | r = symlink(resolved, i->path); |
ecabcf8b | 1318 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1319 | |
468d726b | 1320 | if (r < 0) { |
2e78fa79 | 1321 | _cleanup_free_ char *x = NULL; |
468d726b | 1322 | |
4a62c710 | 1323 | if (errno != EEXIST) |
5c5ccf12 | 1324 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
2e78fa79 LP |
1325 | |
1326 | r = readlink_malloc(i->path, &x); | |
5c5ccf12 | 1327 | if (r < 0 || !streq(resolved, x)) { |
2e78fa79 LP |
1328 | |
1329 | if (i->force) { | |
ecabcf8b | 1330 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1331 | r = symlink_atomic(resolved, i->path); |
ecabcf8b | 1332 | mac_selinux_create_file_clear(); |
2e78fa79 | 1333 | |
f647962d | 1334 | if (r < 0) |
5c5ccf12 | 1335 | return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
a542c4dc | 1336 | |
294929f8 | 1337 | creation = CREATION_FORCE; |
1554afae | 1338 | } else { |
582deb84 | 1339 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1340 | return 0; |
1341 | } | |
294929f8 ZJS |
1342 | } else |
1343 | creation = CREATION_EXISTING; | |
1344 | } else | |
a542c4dc | 1345 | |
294929f8 | 1346 | creation = CREATION_NORMAL; |
7a7d5db7 | 1347 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1348 | break; |
5c5ccf12 | 1349 | } |
468d726b LP |
1350 | |
1351 | case CREATE_BLOCK_DEVICE: | |
1352 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1353 | mode_t file_type; |
1354 | ||
1355 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1356 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1357 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1358 | that case to avoid noise, and we don't support |
1359 | virtualized devices in containers anyway. */ | |
1360 | ||
1361 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1362 | return 0; | |
1363 | } | |
1364 | ||
1554afae | 1365 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1366 | |
5c0d398d | 1367 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1368 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1369 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1370 | mac_selinux_create_file_clear(); |
5c0d398d | 1371 | } |
468d726b | 1372 | |
6555ad8e KS |
1373 | if (r < 0) { |
1374 | if (errno == EPERM) { | |
1375 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1376 | "skipping creation of device node %s.", i->path); | |
1377 | return 0; | |
1378 | } | |
1379 | ||
4a62c710 MS |
1380 | if (errno != EEXIST) |
1381 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1382 | |
a542c4dc | 1383 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1384 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1385 | |
1554afae LP |
1386 | if ((st.st_mode & S_IFMT) != file_type) { |
1387 | ||
1388 | if (i->force) { | |
1389 | ||
1390 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1391 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1392 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1393 | mac_selinux_create_file_clear(); |
1554afae LP |
1394 | } |
1395 | ||
f647962d | 1396 | if (r < 0) |
294929f8 ZJS |
1397 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1398 | creation = CREATION_FORCE; | |
1554afae LP |
1399 | } else { |
1400 | log_debug("%s is not a device node.", i->path); | |
1401 | return 0; | |
1402 | } | |
294929f8 ZJS |
1403 | } else |
1404 | creation = CREATION_EXISTING; | |
1405 | } else | |
1406 | creation = CREATION_NORMAL; | |
a542c4dc | 1407 | |
294929f8 | 1408 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1409 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1410 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1411 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1412 | |
b705ab6a | 1413 | r = path_set_perms(i, i->path); |
468d726b LP |
1414 | if (r < 0) |
1415 | return r; | |
1416 | ||
1417 | break; | |
1418 | } | |
1419 | ||
e73a03e0 | 1420 | case ADJUST_MODE: |
777b87e7 | 1421 | case RELABEL_PATH: |
b705ab6a | 1422 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1423 | if (r < 0) |
96ca8194 | 1424 | return r; |
777b87e7 MS |
1425 | break; |
1426 | ||
a8d88783 | 1427 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1428 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1429 | if (r < 0) |
1430 | return r; | |
ebf4e801 | 1431 | break; |
e73a03e0 | 1432 | |
ebf4e801 | 1433 | case SET_XATTR: |
b705ab6a ZJS |
1434 | r = glob_item(i, path_set_xattrs, false); |
1435 | if (r < 0) | |
1436 | return r; | |
1437 | break; | |
1438 | ||
1439 | case RECURSIVE_SET_XATTR: | |
1440 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1441 | if (r < 0) |
1442 | return r; | |
e73a03e0 | 1443 | break; |
f8eeeaf9 ZJS |
1444 | |
1445 | case SET_ACL: | |
b705ab6a | 1446 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1447 | if (r < 0) |
1448 | return r; | |
b705ab6a ZJS |
1449 | break; |
1450 | ||
1451 | case RECURSIVE_SET_ACL: | |
1452 | r = glob_item(i, path_set_acls, true); | |
1453 | if (r < 0) | |
1454 | return r; | |
1455 | break; | |
22c3a6ca | 1456 | |
88ec4dfa LP |
1457 | case SET_ATTRIBUTE: |
1458 | r = glob_item(i, path_set_attribute, false); | |
22c3a6ca GB |
1459 | if (r < 0) |
1460 | return r; | |
1461 | break; | |
1462 | ||
88ec4dfa LP |
1463 | case RECURSIVE_SET_ATTRIBUTE: |
1464 | r = glob_item(i, path_set_attribute, true); | |
22c3a6ca GB |
1465 | if (r < 0) |
1466 | return r; | |
1467 | break; | |
3b63d2d3 LP |
1468 | } |
1469 | ||
f05bc3f7 | 1470 | return 0; |
3b63d2d3 LP |
1471 | } |
1472 | ||
a0896123 | 1473 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1474 | int r; |
1475 | ||
1476 | assert(i); | |
1477 | ||
1478 | switch (i->type) { | |
1479 | ||
3b63d2d3 | 1480 | case REMOVE_PATH: |
4a62c710 | 1481 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1482 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1483 | |
1484 | break; | |
1485 | ||
1486 | case TRUNCATE_DIRECTORY: | |
1487 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1488 | /* FIXME: we probably should use dir_cleanup() here |
1489 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1490 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1491 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1492 | if (r < 0 && r != -ENOENT) |
1493 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1494 | |
1495 | break; | |
7fcb4b9b ZJS |
1496 | |
1497 | default: | |
1498 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1499 | } |
1500 | ||
1501 | return 0; | |
1502 | } | |
1503 | ||
a0896123 | 1504 | static int remove_item(Item *i) { |
99e68c0b MS |
1505 | int r = 0; |
1506 | ||
b8bb3e8f LP |
1507 | assert(i); |
1508 | ||
582deb84 ZJS |
1509 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1510 | ||
b8bb3e8f LP |
1511 | switch (i->type) { |
1512 | ||
1513 | case CREATE_FILE: | |
1514 | case TRUNCATE_FILE: | |
1515 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1516 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1517 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1518 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
ee17ee7c | 1519 | case CREATE_FIFO: |
468d726b LP |
1520 | case CREATE_SYMLINK: |
1521 | case CREATE_CHAR_DEVICE: | |
1522 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 1523 | case IGNORE_PATH: |
78a92a5a | 1524 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1525 | case ADJUST_MODE: |
777b87e7 | 1526 | case RELABEL_PATH: |
a8d88783 | 1527 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1528 | case WRITE_FILE: |
849958d1 | 1529 | case COPY_FILES: |
ebf4e801 | 1530 | case SET_XATTR: |
b705ab6a | 1531 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1532 | case SET_ACL: |
b705ab6a | 1533 | case RECURSIVE_SET_ACL: |
88ec4dfa LP |
1534 | case SET_ATTRIBUTE: |
1535 | case RECURSIVE_SET_ATTRIBUTE: | |
b8bb3e8f LP |
1536 | break; |
1537 | ||
1538 | case REMOVE_PATH: | |
1539 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1540 | case RECURSIVE_REMOVE_PATH: |
081043cf | 1541 | r = glob_item(i, remove_item_instance, false); |
99e68c0b | 1542 | break; |
b8bb3e8f LP |
1543 | } |
1544 | ||
99e68c0b | 1545 | return r; |
b8bb3e8f LP |
1546 | } |
1547 | ||
78a92a5a | 1548 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1549 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1550 | struct stat s, ps; |
1551 | bool mountpoint; | |
78a92a5a | 1552 | usec_t cutoff, n; |
582deb84 | 1553 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1554 | |
1555 | assert(i); | |
1556 | ||
1557 | if (!i->age_set) | |
1558 | return 0; | |
1559 | ||
1560 | n = now(CLOCK_REALTIME); | |
1561 | if (n < i->age) | |
1562 | return 0; | |
1563 | ||
1564 | cutoff = n - i->age; | |
1565 | ||
df99a9ef | 1566 | d = opendir_nomod(instance); |
78a92a5a | 1567 | if (!d) { |
582deb84 ZJS |
1568 | if (errno == ENOENT || errno == ENOTDIR) { |
1569 | log_debug_errno(errno, "Directory \"%s\": %m", instance); | |
78a92a5a | 1570 | return 0; |
582deb84 | 1571 | } |
78a92a5a | 1572 | |
582deb84 | 1573 | log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1574 | return -errno; |
1575 | } | |
1576 | ||
4a62c710 MS |
1577 | if (fstat(dirfd(d), &s) < 0) |
1578 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1579 | |
1580 | if (!S_ISDIR(s.st_mode)) { | |
1581 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1582 | return -ENOTDIR; |
78a92a5a MS |
1583 | } |
1584 | ||
4a62c710 MS |
1585 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1586 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a MS |
1587 | |
1588 | mountpoint = s.st_dev != ps.st_dev || | |
1589 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
1590 | ||
582deb84 ZJS |
1591 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1592 | mountpoint ? "mount point" : "directory", | |
1593 | instance, | |
1594 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1595 | ||
1596 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1597 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1598 | } |
1599 | ||
1600 | static int clean_item(Item *i) { | |
1601 | int r = 0; | |
1602 | ||
1603 | assert(i); | |
1604 | ||
582deb84 ZJS |
1605 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1606 | ||
78a92a5a MS |
1607 | switch (i->type) { |
1608 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1609 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1610 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1611 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
78a92a5a MS |
1612 | case TRUNCATE_DIRECTORY: |
1613 | case IGNORE_PATH: | |
849958d1 | 1614 | case COPY_FILES: |
78a92a5a MS |
1615 | clean_item_instance(i, i->path); |
1616 | break; | |
1617 | case IGNORE_DIRECTORY_PATH: | |
081043cf | 1618 | r = glob_item(i, clean_item_instance, false); |
78a92a5a MS |
1619 | break; |
1620 | default: | |
1621 | break; | |
1622 | } | |
1623 | ||
1624 | return r; | |
1625 | } | |
1626 | ||
3f93da98 ZJS |
1627 | static int process_item_array(ItemArray *array); |
1628 | ||
3b63d2d3 | 1629 | static int process_item(Item *i) { |
1e95893a | 1630 | int r, q, p, t = 0; |
9348f0e6 | 1631 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1632 | |
1633 | assert(i); | |
1634 | ||
1910cd0e LP |
1635 | if (i->done) |
1636 | return 0; | |
1637 | ||
1638 | i->done = true; | |
1639 | ||
9348f0e6 ZJS |
1640 | prefix = malloc(strlen(i->path) + 1); |
1641 | if (!prefix) | |
1642 | return log_oom(); | |
1643 | ||
1910cd0e | 1644 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1645 | ItemArray *j; |
1910cd0e | 1646 | |
ef43a391 | 1647 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
1648 | if (j) { |
1649 | int s; | |
1650 | ||
3f93da98 | 1651 | s = process_item_array(j); |
1db50423 ZJS |
1652 | if (s < 0 && t == 0) |
1653 | t = s; | |
1654 | } | |
1910cd0e LP |
1655 | } |
1656 | ||
3b63d2d3 | 1657 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1658 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1659 | p = arg_clean ? clean_item(i) : 0; |
1660 | ||
1db50423 ZJS |
1661 | return t < 0 ? t : |
1662 | r < 0 ? r : | |
1663 | q < 0 ? q : | |
1664 | p; | |
3b63d2d3 LP |
1665 | } |
1666 | ||
3f93da98 ZJS |
1667 | static int process_item_array(ItemArray *array) { |
1668 | unsigned n; | |
1669 | int r = 0, k; | |
753615e8 | 1670 | |
3f93da98 ZJS |
1671 | assert(array); |
1672 | ||
1673 | for (n = 0; n < array->count; n++) { | |
1674 | k = process_item(array->items + n); | |
1675 | if (k < 0 && r == 0) | |
1676 | r = k; | |
1677 | } | |
1678 | ||
1679 | return r; | |
1680 | } | |
3b63d2d3 | 1681 | |
3f93da98 ZJS |
1682 | static void item_free_contents(Item *i) { |
1683 | assert(i); | |
3b63d2d3 | 1684 | free(i->path); |
468d726b | 1685 | free(i->argument); |
ebf4e801 | 1686 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1687 | |
1688 | #ifdef HAVE_ACL | |
1689 | acl_free(i->acl_access); | |
1690 | acl_free(i->acl_default); | |
1691 | #endif | |
3b63d2d3 LP |
1692 | } |
1693 | ||
3f93da98 ZJS |
1694 | static void item_array_free(ItemArray *a) { |
1695 | unsigned n; | |
1696 | ||
1697 | if (!a) | |
1698 | return; | |
1699 | ||
1700 | for (n = 0; n < a->count; n++) | |
1701 | item_free_contents(a->items + n); | |
1702 | free(a->items); | |
1703 | free(a); | |
1704 | } | |
e2f2fb78 | 1705 | |
17493fa5 LP |
1706 | static int item_compare(const void *a, const void *b) { |
1707 | const Item *x = a, *y = b; | |
1708 | ||
1709 | /* Make sure that the ownership taking item is put first, so | |
1710 | * that we first create the node, and then can adjust it */ | |
1711 | ||
1712 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
1713 | return -1; | |
1714 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
1715 | return 1; | |
1716 | ||
1717 | return (int) x->type - (int) y->type; | |
1718 | } | |
1719 | ||
3f93da98 | 1720 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1721 | assert(a); |
1722 | assert(b); | |
3f93da98 | 1723 | assert(streq(a->path, b->path)); |
bfe95f35 | 1724 | |
3f93da98 ZJS |
1725 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1726 | /* check if the items are the same */ | |
1727 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1728 | |
3f93da98 ZJS |
1729 | a->uid_set == b->uid_set && |
1730 | a->uid == b->uid && | |
bfe95f35 | 1731 | |
3f93da98 ZJS |
1732 | a->gid_set == b->gid_set && |
1733 | a->gid == b->gid && | |
bfe95f35 | 1734 | |
3f93da98 ZJS |
1735 | a->mode_set == b->mode_set && |
1736 | a->mode == b->mode && | |
bfe95f35 | 1737 | |
3f93da98 ZJS |
1738 | a->age_set == b->age_set && |
1739 | a->age == b->age && | |
bfe95f35 | 1740 | |
3f93da98 | 1741 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1742 | |
3f93da98 | 1743 | a->keep_first_level == b->keep_first_level && |
468d726b | 1744 | |
3f93da98 | 1745 | a->major_minor == b->major_minor; |
468d726b | 1746 | |
bfe95f35 LP |
1747 | return true; |
1748 | } | |
1749 | ||
a2aced4a DR |
1750 | static bool should_include_path(const char *path) { |
1751 | char **prefix; | |
1752 | ||
abef3f91 | 1753 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
1754 | if (path_startswith(path, *prefix)) { |
1755 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
1756 | path, *prefix); | |
5c795114 | 1757 | return false; |
582deb84 | 1758 | } |
a2aced4a | 1759 | |
abef3f91 | 1760 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
1761 | if (path_startswith(path, *prefix)) { |
1762 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 1763 | return true; |
582deb84 | 1764 | } |
a2aced4a | 1765 | |
5c795114 DR |
1766 | /* no matches, so we should include this path only if we |
1767 | * have no whitelist at all */ | |
582deb84 ZJS |
1768 | if (strv_length(arg_include_prefixes) == 0) |
1769 | return true; | |
1770 | ||
1771 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
1772 | return false; | |
a2aced4a DR |
1773 | } |
1774 | ||
fba6e687 | 1775 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a | 1776 | |
cde684a2 | 1777 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1778 | _cleanup_(item_free_contents) Item i = {}; |
1779 | ItemArray *existing; | |
ef43a391 | 1780 | OrderedHashmap *h; |
657cf7f4 | 1781 | int r, pos; |
5f255144 | 1782 | bool force = false, boot = false; |
3b63d2d3 LP |
1783 | |
1784 | assert(fname); | |
1785 | assert(line >= 1); | |
1786 | assert(buffer); | |
1787 | ||
68685607 | 1788 | r = extract_many_words( |
4034a06d | 1789 | &buffer, |
68685607 | 1790 | NULL, |
12ba2c44 | 1791 | EXTRACT_QUOTES, |
4034a06d LP |
1792 | &action, |
1793 | &path, | |
1794 | &mode, | |
1795 | &user, | |
1796 | &group, | |
1797 | &age, | |
1798 | NULL); | |
657cf7f4 | 1799 | if (r < 0) |
1800 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); | |
1801 | else if (r < 2) { | |
3b63d2d3 | 1802 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1803 | return -EIO; |
5008d581 LP |
1804 | } |
1805 | ||
aa5f6817 | 1806 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
1807 | i.argument = strdup(buffer); |
1808 | if (!i.argument) | |
1809 | return log_oom(); | |
1810 | } | |
1811 | ||
2e78fa79 LP |
1812 | if (isempty(action)) { |
1813 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1814 | return -EINVAL; |
2e78fa79 LP |
1815 | } |
1816 | ||
5f255144 ZJS |
1817 | for (pos = 1; action[pos]; pos++) { |
1818 | if (action[pos] == '!' && !boot) | |
1819 | boot = true; | |
1820 | else if (action[pos] == '+' && !force) | |
1821 | force = true; | |
1822 | else { | |
1823 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1824 | fname, line, action); | |
1825 | return -EINVAL; | |
1826 | } | |
2e78fa79 LP |
1827 | } |
1828 | ||
582deb84 ZJS |
1829 | if (boot && !arg_boot) { |
1830 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
1831 | action, path); | |
c4708f13 | 1832 | return 0; |
582deb84 | 1833 | } |
c4708f13 | 1834 | |
3f93da98 ZJS |
1835 | i.type = action[0]; |
1836 | i.force = force; | |
2e78fa79 | 1837 | |
3f93da98 | 1838 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1839 | if (r < 0) { |
1840 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1841 | return r; | |
1842 | } | |
1843 | ||
3f93da98 | 1844 | switch (i.type) { |
468d726b | 1845 | |
777b87e7 | 1846 | case CREATE_DIRECTORY: |
d7b8eec7 | 1847 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1848 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1849 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
777b87e7 MS |
1850 | case TRUNCATE_DIRECTORY: |
1851 | case CREATE_FIFO: | |
1852 | case IGNORE_PATH: | |
78a92a5a | 1853 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1854 | case REMOVE_PATH: |
1855 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1856 | case ADJUST_MODE: |
777b87e7 MS |
1857 | case RELABEL_PATH: |
1858 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 1859 | if (i.argument) |
bd550f78 | 1860 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
1861 | |
1862 | break; | |
1863 | ||
1864 | case CREATE_FILE: | |
1865 | case TRUNCATE_FILE: | |
777b87e7 | 1866 | break; |
468d726b LP |
1867 | |
1868 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1869 | if (!i.argument) { |
1870 | i.argument = strappend("/usr/share/factory/", i.path); | |
1871 | if (!i.argument) | |
2f3b873a | 1872 | return log_oom(); |
468d726b LP |
1873 | } |
1874 | break; | |
1875 | ||
31ed59c5 | 1876 | case WRITE_FILE: |
3f93da98 | 1877 | if (!i.argument) { |
31ed59c5 | 1878 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1879 | return -EBADMSG; |
31ed59c5 LP |
1880 | } |
1881 | break; | |
1882 | ||
849958d1 | 1883 | case COPY_FILES: |
3f93da98 ZJS |
1884 | if (!i.argument) { |
1885 | i.argument = strappend("/usr/share/factory/", i.path); | |
1886 | if (!i.argument) | |
2f3b873a | 1887 | return log_oom(); |
3f93da98 | 1888 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1889 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1890 | return -EBADMSG; | |
1891 | } | |
1892 | ||
3f93da98 | 1893 | path_kill_slashes(i.argument); |
849958d1 LP |
1894 | break; |
1895 | ||
468d726b LP |
1896 | case CREATE_CHAR_DEVICE: |
1897 | case CREATE_BLOCK_DEVICE: { | |
1898 | unsigned major, minor; | |
1899 | ||
3f93da98 | 1900 | if (!i.argument) { |
468d726b | 1901 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1902 | return -EBADMSG; |
468d726b LP |
1903 | } |
1904 | ||
3f93da98 ZJS |
1905 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1906 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1907 | return -EBADMSG; |
468d726b LP |
1908 | } |
1909 | ||
3f93da98 | 1910 | i.major_minor = makedev(major, minor); |
468d726b LP |
1911 | break; |
1912 | } | |
1913 | ||
ebf4e801 | 1914 | case SET_XATTR: |
b705ab6a | 1915 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1916 | if (!i.argument) { |
ebf4e801 MW |
1917 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1918 | return -EBADMSG; | |
1919 | } | |
bd550f78 | 1920 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
1921 | if (r < 0) |
1922 | return r; | |
1923 | break; | |
1924 | ||
f8eeeaf9 | 1925 | case SET_ACL: |
b705ab6a | 1926 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1927 | if (!i.argument) { |
1928 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1929 | return -EBADMSG; | |
1930 | } | |
bd550f78 | 1931 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
1932 | if (r < 0) |
1933 | return r; | |
1934 | break; | |
1935 | ||
88ec4dfa LP |
1936 | case SET_ATTRIBUTE: |
1937 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 1938 | if (!i.argument) { |
88ec4dfa | 1939 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
1940 | return -EBADMSG; |
1941 | } | |
bd550f78 | 1942 | r = parse_attribute_from_arg(&i); |
22c3a6ca GB |
1943 | if (r < 0) |
1944 | return r; | |
1945 | break; | |
1946 | ||
777b87e7 | 1947 | default: |
582deb84 | 1948 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
7f2c1f4d | 1949 | return -EBADMSG; |
3b63d2d3 | 1950 | } |
468d726b | 1951 | |
3f93da98 ZJS |
1952 | if (!path_is_absolute(i.path)) { |
1953 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1954 | return -EBADMSG; |
3b63d2d3 LP |
1955 | } |
1956 | ||
3f93da98 | 1957 | path_kill_slashes(i.path); |
3b63d2d3 | 1958 | |
3f93da98 | 1959 | if (!should_include_path(i.path)) |
7f2c1f4d | 1960 | return 0; |
5008d581 | 1961 | |
cf9a4abd | 1962 | if (arg_root) { |
cde684a2 LP |
1963 | char *p; |
1964 | ||
1d13f648 | 1965 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
1966 | if (!p) |
1967 | return log_oom(); | |
1968 | ||
3f93da98 ZJS |
1969 | free(i.path); |
1970 | i.path = p; | |
cf9a4abd MM |
1971 | } |
1972 | ||
90937fe3 | 1973 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
1974 | const char *u = user; |
1975 | ||
3f93da98 | 1976 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 1977 | if (r < 0) { |
3b63d2d3 | 1978 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1979 | return r; |
3b63d2d3 LP |
1980 | } |
1981 | ||
3f93da98 | 1982 | i.uid_set = true; |
3b63d2d3 LP |
1983 | } |
1984 | ||
90937fe3 | 1985 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
1986 | const char *g = group; |
1987 | ||
3f93da98 | 1988 | r = get_group_creds(&g, &i.gid); |
4b67834e | 1989 | if (r < 0) { |
3b63d2d3 | 1990 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1991 | return r; |
3b63d2d3 LP |
1992 | } |
1993 | ||
3f93da98 | 1994 | i.gid_set = true; |
3b63d2d3 LP |
1995 | } |
1996 | ||
90937fe3 | 1997 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 1998 | const char *mm = mode; |
3b63d2d3 LP |
1999 | unsigned m; |
2000 | ||
abef3f91 | 2001 | if (*mm == '~') { |
3f93da98 | 2002 | i.mask_perms = true; |
abef3f91 LP |
2003 | mm++; |
2004 | } | |
2005 | ||
2ff7b0a5 | 2006 | if (parse_mode(mm, &m) < 0) { |
3b63d2d3 | 2007 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2008 | return -EBADMSG; |
3b63d2d3 LP |
2009 | } |
2010 | ||
3f93da98 ZJS |
2011 | i.mode = m; |
2012 | i.mode_set = true; | |
3b63d2d3 | 2013 | } else |
5fb13eb5 | 2014 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2015 | |
90937fe3 | 2016 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2017 | const char *a = age; |
2018 | ||
2019 | if (*a == '~') { | |
3f93da98 | 2020 | i.keep_first_level = true; |
24f3a374 LP |
2021 | a++; |
2022 | } | |
2023 | ||
3f93da98 | 2024 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 2025 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2026 | return -EBADMSG; |
3b63d2d3 LP |
2027 | } |
2028 | ||
3f93da98 | 2029 | i.age_set = true; |
3b63d2d3 LP |
2030 | } |
2031 | ||
3f93da98 | 2032 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2033 | |
ef43a391 | 2034 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2035 | if (existing) { |
3f93da98 ZJS |
2036 | unsigned n; |
2037 | ||
2038 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2039 | if (!item_compatible(existing->items + n, &i)) { |
505ef0e3 | 2040 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 2041 | fname, line, i.path); |
6487ada8 MP |
2042 | return 0; |
2043 | } | |
ebf4e801 MW |
2044 | } |
2045 | } else { | |
3f93da98 | 2046 | existing = new0(ItemArray, 1); |
ef43a391 | 2047 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2048 | if (r < 0) |
2049 | return log_oom(); | |
bfe95f35 LP |
2050 | } |
2051 | ||
3f93da98 ZJS |
2052 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2053 | return log_oom(); | |
5008d581 | 2054 | |
3f93da98 | 2055 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2056 | |
2057 | /* Sort item array, to enforce stable ordering of application */ | |
2058 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2059 | |
3f93da98 | 2060 | zero(i); |
7f2c1f4d | 2061 | return 0; |
5008d581 LP |
2062 | } |
2063 | ||
601185b4 | 2064 | static void help(void) { |
522d4a49 LP |
2065 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2066 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2067 | " -h --help Show this help\n" |
eb9da376 | 2068 | " --version Show package version\n" |
5c795114 DR |
2069 | " --create Create marked files/directories\n" |
2070 | " --clean Clean up marked directories\n" | |
2071 | " --remove Remove marked files/directories\n" | |
81815651 | 2072 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2073 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2074 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
cf9a4abd | 2075 | " --root=PATH Operate on an alternate filesystem root\n", |
3b63d2d3 | 2076 | program_invocation_short_name); |
3b63d2d3 LP |
2077 | } |
2078 | ||
2079 | static int parse_argv(int argc, char *argv[]) { | |
2080 | ||
2081 | enum { | |
eb9da376 | 2082 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
2083 | ARG_CREATE, |
2084 | ARG_CLEAN, | |
fba6e687 | 2085 | ARG_REMOVE, |
81815651 | 2086 | ARG_BOOT, |
5c795114 DR |
2087 | ARG_PREFIX, |
2088 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2089 | ARG_ROOT, |
3b63d2d3 LP |
2090 | }; |
2091 | ||
2092 | static const struct option options[] = { | |
5c795114 | 2093 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 2094 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
2095 | { "create", no_argument, NULL, ARG_CREATE }, |
2096 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2097 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2098 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2099 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2100 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2101 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 2102 | {} |
3b63d2d3 LP |
2103 | }; |
2104 | ||
2105 | int c; | |
2106 | ||
2107 | assert(argc >= 0); | |
2108 | assert(argv); | |
2109 | ||
601185b4 | 2110 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2111 | |
2112 | switch (c) { | |
2113 | ||
2114 | case 'h': | |
601185b4 ZJS |
2115 | help(); |
2116 | return 0; | |
eb9da376 LP |
2117 | |
2118 | case ARG_VERSION: | |
3f6fd1ba | 2119 | return version(); |
3b63d2d3 LP |
2120 | |
2121 | case ARG_CREATE: | |
2122 | arg_create = true; | |
2123 | break; | |
2124 | ||
2125 | case ARG_CLEAN: | |
2126 | arg_clean = true; | |
2127 | break; | |
2128 | ||
2129 | case ARG_REMOVE: | |
2130 | arg_remove = true; | |
2131 | break; | |
2132 | ||
81815651 ZJS |
2133 | case ARG_BOOT: |
2134 | arg_boot = true; | |
c4708f13 ZJS |
2135 | break; |
2136 | ||
fba6e687 | 2137 | case ARG_PREFIX: |
7bc040fa | 2138 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2139 | return log_oom(); |
fba6e687 LP |
2140 | break; |
2141 | ||
5c795114 | 2142 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2143 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2144 | return log_oom(); |
2145 | break; | |
2146 | ||
cf9a4abd | 2147 | case ARG_ROOT: |
753615e8 | 2148 | free(arg_root); |
cf9a4abd MM |
2149 | arg_root = path_make_absolute_cwd(optarg); |
2150 | if (!arg_root) | |
2151 | return log_oom(); | |
753615e8 | 2152 | |
cf9a4abd MM |
2153 | path_kill_slashes(arg_root); |
2154 | break; | |
2155 | ||
3b63d2d3 LP |
2156 | case '?': |
2157 | return -EINVAL; | |
2158 | ||
2159 | default: | |
eb9da376 | 2160 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2161 | } |
3b63d2d3 LP |
2162 | |
2163 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 2164 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2165 | return -EINVAL; |
2166 | } | |
2167 | ||
2168 | return 1; | |
2169 | } | |
2170 | ||
fba6e687 | 2171 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
2172 | _cleanup_fclose_ FILE *f = NULL; |
2173 | char line[LINE_MAX]; | |
78a92a5a | 2174 | Iterator iterator; |
1731e34a | 2175 | unsigned v = 0; |
78a92a5a | 2176 | Item *i; |
1731e34a | 2177 | int r; |
fba6e687 LP |
2178 | |
2179 | assert(fn); | |
2180 | ||
cf9a4abd | 2181 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e | 2182 | if (r < 0) { |
582deb84 ZJS |
2183 | if (ignore_enoent && r == -ENOENT) { |
2184 | log_debug_errno(r, "Failed to open \"%s\": %m", fn); | |
fba6e687 | 2185 | return 0; |
582deb84 | 2186 | } |
fba6e687 | 2187 | |
8d3d7072 | 2188 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
fba6e687 | 2189 | } |
582deb84 | 2190 | log_debug("Reading config file \"%s\".", fn); |
fba6e687 | 2191 | |
1731e34a LP |
2192 | FOREACH_LINE(line, f, break) { |
2193 | char *l; | |
fba6e687 LP |
2194 | int k; |
2195 | ||
fba6e687 LP |
2196 | v++; |
2197 | ||
2198 | l = strstrip(line); | |
2199 | if (*l == '#' || *l == 0) | |
2200 | continue; | |
2201 | ||
1731e34a LP |
2202 | k = parse_line(fn, v, l); |
2203 | if (k < 0 && r == 0) | |
2204 | r = k; | |
fba6e687 LP |
2205 | } |
2206 | ||
78a92a5a | 2207 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2208 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2209 | Iterator iter; |
2210 | Item *j, *candidate_item = NULL; | |
2211 | ||
2212 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2213 | continue; | |
2214 | ||
ef43a391 | 2215 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2216 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2217 | continue; |
2218 | ||
2219 | if (path_equal(j->path, i->path)) { | |
2220 | candidate_item = j; | |
2221 | break; | |
2222 | } | |
2223 | ||
2224 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2225 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2226 | candidate_item = j; | |
2227 | } | |
2228 | ||
9ed2a35e | 2229 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2230 | i->age = candidate_item->age; |
2231 | i->age_set = true; | |
2232 | } | |
2233 | } | |
2234 | ||
fba6e687 | 2235 | if (ferror(f)) { |
56f64d95 | 2236 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2237 | if (r == 0) |
2238 | r = -EIO; | |
2239 | } | |
2240 | ||
fba6e687 LP |
2241 | return r; |
2242 | } | |
2243 | ||
5008d581 | 2244 | int main(int argc, char *argv[]) { |
fabe5c0e | 2245 | int r, k; |
3f93da98 | 2246 | ItemArray *a; |
3b63d2d3 LP |
2247 | Iterator iterator; |
2248 | ||
fdcad0c2 LP |
2249 | r = parse_argv(argc, argv); |
2250 | if (r <= 0) | |
753615e8 | 2251 | goto finish; |
5008d581 | 2252 | |
eb0ca9eb | 2253 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2254 | log_parse_environment(); |
2255 | log_open(); | |
2256 | ||
4c12626c LP |
2257 | umask(0022); |
2258 | ||
cc56fafe | 2259 | mac_selinux_init(NULL); |
5008d581 | 2260 | |
ef43a391 LP |
2261 | items = ordered_hashmap_new(&string_hash_ops); |
2262 | globs = ordered_hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
2263 | |
2264 | if (!items || !globs) { | |
fabe5c0e | 2265 | r = log_oom(); |
3b63d2d3 LP |
2266 | goto finish; |
2267 | } | |
2268 | ||
fabe5c0e | 2269 | r = 0; |
5008d581 | 2270 | |
fba6e687 LP |
2271 | if (optind < argc) { |
2272 | int j; | |
5008d581 | 2273 | |
9125670f | 2274 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
2275 | k = read_config_file(argv[j], false); |
2276 | if (k < 0 && r == 0) | |
2277 | r = k; | |
9125670f | 2278 | } |
5008d581 | 2279 | |
fba6e687 | 2280 | } else { |
fabe5c0e LP |
2281 | _cleanup_strv_free_ char **files = NULL; |
2282 | char **f; | |
5008d581 | 2283 | |
cf9a4abd | 2284 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 2285 | if (r < 0) { |
da927ba9 | 2286 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
2287 | goto finish; |
2288 | } | |
3b63d2d3 | 2289 | |
772f8371 | 2290 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
2291 | k = read_config_file(*f, true); |
2292 | if (k < 0 && r == 0) | |
2293 | r = k; | |
5008d581 | 2294 | } |
772f8371 | 2295 | } |
5008d581 | 2296 | |
17493fa5 LP |
2297 | /* The non-globbing ones usually create things, hence we apply |
2298 | * them first */ | |
ef43a391 | 2299 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 2300 | k = process_item_array(a); |
1db50423 ZJS |
2301 | if (k < 0 && r == 0) |
2302 | r = k; | |
2303 | } | |
b8bb3e8f | 2304 | |
17493fa5 LP |
2305 | /* The globbing ones usually alter things, hence we apply them |
2306 | * second. */ | |
ef43a391 | 2307 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 2308 | k = process_item_array(a); |
1db50423 ZJS |
2309 | if (k < 0 && r == 0) |
2310 | r = k; | |
2311 | } | |
3b63d2d3 | 2312 | |
5008d581 | 2313 | finish: |
ef43a391 | 2314 | while ((a = ordered_hashmap_steal_first(items))) |
3f93da98 | 2315 | item_array_free(a); |
3b63d2d3 | 2316 | |
ef43a391 | 2317 | while ((a = ordered_hashmap_steal_first(globs))) |
3f93da98 | 2318 | item_array_free(a); |
17b90525 | 2319 | |
ef43a391 LP |
2320 | ordered_hashmap_free(items); |
2321 | ordered_hashmap_free(globs); | |
5008d581 | 2322 | |
7bc040fa LP |
2323 | free(arg_include_prefixes); |
2324 | free(arg_exclude_prefixes); | |
cf9a4abd | 2325 | free(arg_root); |
a2aced4a | 2326 | |
17b90525 LP |
2327 | set_free_free(unix_sockets); |
2328 | ||
cc56fafe | 2329 | mac_selinux_finish(); |
29003cff | 2330 | |
fabe5c0e | 2331 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 2332 | } |