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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" | |
4f5dd394 | 46 | #include "escape.h" |
3f6fd1ba LP |
47 | #include "formats-util.h" |
48 | #include "label.h" | |
5008d581 | 49 | #include "log.h" |
54693d9b | 50 | #include "macro.h" |
d39efe74 | 51 | #include "missing.h" |
49e942b2 | 52 | #include "mkdir.h" |
9eb977db | 53 | #include "path-util.h" |
c6878637 | 54 | #include "rm-rf.h" |
d7b8eec7 | 55 | #include "selinux-util.h" |
3f6fd1ba LP |
56 | #include "set.h" |
57 | #include "specifier.h" | |
07630cea | 58 | #include "string-util.h" |
3f6fd1ba LP |
59 | #include "strv.h" |
60 | #include "util.h" | |
5008d581 | 61 | |
01000479 | 62 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 63 | * them in the file system. This is intended to be used to create |
db019b8d KS |
64 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
65 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 66 | |
66ccd038 | 67 | typedef enum ItemType { |
b8bb3e8f | 68 | /* These ones take file names */ |
3b63d2d3 LP |
69 | CREATE_FILE = 'f', |
70 | TRUNCATE_FILE = 'F', | |
71 | CREATE_DIRECTORY = 'd', | |
72 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 73 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
74 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
75 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 76 | CREATE_FIFO = 'p', |
468d726b LP |
77 | CREATE_SYMLINK = 'L', |
78 | CREATE_CHAR_DEVICE = 'c', | |
79 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 80 | COPY_FILES = 'C', |
b8bb3e8f LP |
81 | |
82 | /* These ones take globs */ | |
17493fa5 | 83 | WRITE_FILE = 'w', |
b705ab6a ZJS |
84 | SET_XATTR = 't', |
85 | RECURSIVE_SET_XATTR = 'T', | |
86 | SET_ACL = 'a', | |
87 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
88 | SET_ATTRIBUTE = 'h', |
89 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 90 | IGNORE_PATH = 'x', |
78a92a5a | 91 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 92 | REMOVE_PATH = 'r', |
a8d88783 | 93 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 94 | RELABEL_PATH = 'z', |
e73a03e0 | 95 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 96 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 97 | } ItemType; |
3b63d2d3 LP |
98 | |
99 | typedef struct Item { | |
66ccd038 | 100 | ItemType type; |
3b63d2d3 LP |
101 | |
102 | char *path; | |
468d726b | 103 | char *argument; |
ebf4e801 | 104 | char **xattrs; |
f8eeeaf9 ZJS |
105 | #ifdef HAVE_ACL |
106 | acl_t acl_access; | |
107 | acl_t acl_default; | |
108 | #endif | |
5008d581 LP |
109 | uid_t uid; |
110 | gid_t gid; | |
3b63d2d3 LP |
111 | mode_t mode; |
112 | usec_t age; | |
113 | ||
468d726b | 114 | dev_t major_minor; |
88ec4dfa LP |
115 | unsigned attribute_value; |
116 | unsigned attribute_mask; | |
468d726b | 117 | |
3b63d2d3 LP |
118 | bool uid_set:1; |
119 | bool gid_set:1; | |
120 | bool mode_set:1; | |
121 | bool age_set:1; | |
abef3f91 | 122 | bool mask_perms:1; |
88ec4dfa | 123 | bool attribute_set:1; |
24f3a374 LP |
124 | |
125 | bool keep_first_level:1; | |
1910cd0e | 126 | |
2e78fa79 LP |
127 | bool force:1; |
128 | ||
1910cd0e | 129 | bool done:1; |
3b63d2d3 LP |
130 | } Item; |
131 | ||
3f93da98 ZJS |
132 | typedef struct ItemArray { |
133 | Item *items; | |
134 | size_t count; | |
135 | size_t size; | |
136 | } ItemArray; | |
137 | ||
3b63d2d3 LP |
138 | static bool arg_create = false; |
139 | static bool arg_clean = false; | |
140 | static bool arg_remove = false; | |
81815651 | 141 | static bool arg_boot = false; |
3b63d2d3 | 142 | |
7bc040fa LP |
143 | static char **arg_include_prefixes = NULL; |
144 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 145 | static char *arg_root = NULL; |
fba6e687 | 146 | |
7f0a55d4 | 147 | static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles"); |
9125670f | 148 | |
3b63d2d3 LP |
149 | #define MAX_DEPTH 256 |
150 | ||
ef43a391 | 151 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
152 | static Set *unix_sockets = NULL; |
153 | ||
bd550f78 LP |
154 | static const Specifier specifier_table[] = { |
155 | { 'm', specifier_machine_id, NULL }, | |
156 | { 'b', specifier_boot_id, NULL }, | |
157 | { 'H', specifier_host_name, NULL }, | |
158 | { 'v', specifier_kernel_release, NULL }, | |
159 | {} | |
160 | }; | |
161 | ||
66ccd038 | 162 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
163 | return IN_SET(t, |
164 | WRITE_FILE, | |
165 | IGNORE_PATH, | |
166 | IGNORE_DIRECTORY_PATH, | |
167 | REMOVE_PATH, | |
168 | RECURSIVE_REMOVE_PATH, | |
e73a03e0 | 169 | ADJUST_MODE, |
cde684a2 | 170 | RELABEL_PATH, |
b705ab6a ZJS |
171 | RECURSIVE_RELABEL_PATH, |
172 | SET_XATTR, | |
173 | RECURSIVE_SET_XATTR, | |
174 | SET_ACL, | |
34f64536 LP |
175 | RECURSIVE_SET_ACL, |
176 | SET_ATTRIBUTE, | |
177 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
178 | } |
179 | ||
3f93da98 ZJS |
180 | static bool takes_ownership(ItemType t) { |
181 | return IN_SET(t, | |
182 | CREATE_FILE, | |
183 | TRUNCATE_FILE, | |
184 | CREATE_DIRECTORY, | |
185 | TRUNCATE_DIRECTORY, | |
186 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
187 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
188 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
189 | CREATE_FIFO, |
190 | CREATE_SYMLINK, | |
191 | CREATE_CHAR_DEVICE, | |
192 | CREATE_BLOCK_DEVICE, | |
193 | COPY_FILES, | |
3f93da98 ZJS |
194 | WRITE_FILE, |
195 | IGNORE_PATH, | |
196 | IGNORE_DIRECTORY_PATH, | |
197 | REMOVE_PATH, | |
198 | RECURSIVE_REMOVE_PATH); | |
199 | } | |
200 | ||
ef43a391 | 201 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 202 | ItemArray *j; |
b8bb3e8f LP |
203 | Iterator i; |
204 | ||
ef43a391 | 205 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
206 | unsigned n; |
207 | ||
208 | for (n = 0; n < j->count; n++) { | |
209 | Item *item = j->items + n; | |
210 | ||
211 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
212 | return item; | |
213 | } | |
214 | } | |
b8bb3e8f LP |
215 | |
216 | return NULL; | |
217 | } | |
218 | ||
17b90525 | 219 | static void load_unix_sockets(void) { |
7fd1b19b | 220 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
221 | char line[LINE_MAX]; |
222 | ||
223 | if (unix_sockets) | |
224 | return; | |
225 | ||
226 | /* We maintain a cache of the sockets we found in | |
227 | * /proc/net/unix to speed things up a little. */ | |
228 | ||
d5099efc | 229 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 230 | if (!unix_sockets) |
17b90525 LP |
231 | return; |
232 | ||
fdcad0c2 LP |
233 | f = fopen("/proc/net/unix", "re"); |
234 | if (!f) | |
17b90525 LP |
235 | return; |
236 | ||
fdcad0c2 LP |
237 | /* Skip header */ |
238 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
239 | goto fail; |
240 | ||
241 | for (;;) { | |
242 | char *p, *s; | |
243 | int k; | |
244 | ||
fdcad0c2 | 245 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
246 | break; |
247 | ||
248 | truncate_nl(line); | |
249 | ||
fdcad0c2 LP |
250 | p = strchr(line, ':'); |
251 | if (!p) | |
252 | continue; | |
253 | ||
254 | if (strlen(p) < 37) | |
17b90525 LP |
255 | continue; |
256 | ||
fdcad0c2 | 257 | p += 37; |
17b90525 | 258 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 259 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
260 | p += strspn(p, WHITESPACE); |
261 | ||
262 | if (*p != '/') | |
263 | continue; | |
264 | ||
fdcad0c2 LP |
265 | s = strdup(p); |
266 | if (!s) | |
17b90525 LP |
267 | goto fail; |
268 | ||
4ff21d85 LP |
269 | path_kill_slashes(s); |
270 | ||
ef42202a ZJS |
271 | k = set_consume(unix_sockets, s); |
272 | if (k < 0 && k != -EEXIST) | |
273 | goto fail; | |
17b90525 LP |
274 | } |
275 | ||
276 | return; | |
277 | ||
278 | fail: | |
279 | set_free_free(unix_sockets); | |
280 | unix_sockets = NULL; | |
17b90525 LP |
281 | } |
282 | ||
283 | static bool unix_socket_alive(const char *fn) { | |
284 | assert(fn); | |
285 | ||
286 | load_unix_sockets(); | |
287 | ||
288 | if (unix_sockets) | |
289 | return !!set_get(unix_sockets, (char*) fn); | |
290 | ||
291 | /* We don't know, so assume yes */ | |
292 | return true; | |
293 | } | |
294 | ||
99d680ac | 295 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 296 | |
2695c5c4 | 297 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
298 | int mount_id_parent, mount_id; |
299 | int r_p, r; | |
300 | ||
370c860f | 301 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
302 | if (r_p < 0) |
303 | r_p = -errno; | |
304 | ||
370c860f DR |
305 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
306 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
307 | if (r < 0) |
308 | r = -errno; | |
309 | ||
310 | /* got no handle; make no assumptions, return error */ | |
311 | if (r_p < 0 && r < 0) | |
312 | return r_p; | |
313 | ||
314 | /* got both handles; if they differ, it is a mount point */ | |
315 | if (r_p >= 0 && r >= 0) | |
316 | return mount_id_parent != mount_id; | |
317 | ||
318 | /* got only one handle; assume different mount points if one | |
319 | * of both queries was not supported by the filesystem */ | |
e7aab541 | 320 | if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
99d680ac KS |
321 | return true; |
322 | ||
323 | /* return error */ | |
324 | if (r_p < 0) | |
325 | return r_p; | |
326 | return r; | |
327 | } | |
328 | ||
df99a9ef ZJS |
329 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
330 | DIR *dir; | |
331 | ||
332 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
333 | if (dir) |
334 | return dir; | |
335 | ||
336 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
337 | if (errno != EPERM) | |
338 | return NULL; | |
339 | ||
340 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
341 | if (!dir) | |
342 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
343 | |
344 | return dir; | |
345 | } | |
346 | ||
347 | static DIR* opendir_nomod(const char *path) { | |
348 | return xopendirat_nomod(AT_FDCWD, path); | |
349 | } | |
350 | ||
3b63d2d3 | 351 | static int dir_cleanup( |
78a92a5a | 352 | Item *i, |
3b63d2d3 LP |
353 | const char *p, |
354 | DIR *d, | |
355 | const struct stat *ds, | |
356 | usec_t cutoff, | |
357 | dev_t rootdev, | |
358 | bool mountpoint, | |
24f3a374 | 359 | int maxdepth, |
265ffa1e LP |
360 | bool keep_this_level) { |
361 | ||
3b63d2d3 LP |
362 | struct dirent *dent; |
363 | struct timespec times[2]; | |
364 | bool deleted = false; | |
3b63d2d3 LP |
365 | int r = 0; |
366 | ||
367 | while ((dent = readdir(d))) { | |
368 | struct stat s; | |
369 | usec_t age; | |
7fd1b19b | 370 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 371 | |
7fcb4b9b | 372 | if (STR_IN_SET(dent->d_name, ".", "..")) |
3b63d2d3 | 373 | continue; |
5008d581 | 374 | |
3b63d2d3 | 375 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
376 | if (errno == ENOENT) |
377 | continue; | |
5008d581 | 378 | |
ca2f4176 KS |
379 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
380 | if (errno == EACCES) | |
56f64d95 | 381 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 382 | else |
56f64d95 | 383 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 384 | r = -errno; |
3b63d2d3 LP |
385 | continue; |
386 | } | |
387 | ||
388 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
389 | if (s.st_dev != rootdev) { |
390 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 391 | continue; |
582deb84 | 392 | } |
3b63d2d3 | 393 | |
99d680ac KS |
394 | /* Try to detect bind mounts of the same filesystem instance; they |
395 | * do not differ in device major/minors. This type of query is not | |
396 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
397 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
398 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
399 | p, dent->d_name); | |
99d680ac | 400 | continue; |
582deb84 | 401 | } |
99d680ac | 402 | |
3b63d2d3 | 403 | /* Do not delete read-only files owned by root */ |
582deb84 ZJS |
404 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
405 | log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); | |
3b63d2d3 | 406 | continue; |
582deb84 | 407 | } |
3b63d2d3 | 408 | |
cde684a2 LP |
409 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
410 | if (!sub_path) { | |
0d0f0c50 | 411 | r = log_oom(); |
3b63d2d3 LP |
412 | goto finish; |
413 | } | |
414 | ||
415 | /* Is there an item configured for this path? */ | |
ef43a391 | 416 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 417 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 418 | continue; |
582deb84 | 419 | } |
3b63d2d3 | 420 | |
582deb84 ZJS |
421 | if (find_glob(globs, sub_path)) { |
422 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 423 | continue; |
582deb84 | 424 | } |
b8bb3e8f | 425 | |
3b63d2d3 LP |
426 | if (S_ISDIR(s.st_mode)) { |
427 | ||
428 | if (mountpoint && | |
429 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
430 | s.st_uid == 0) { |
431 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 432 | continue; |
582deb84 | 433 | } |
3b63d2d3 LP |
434 | |
435 | if (maxdepth <= 0) | |
582deb84 | 436 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 437 | else { |
7fd1b19b | 438 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
439 | int q; |
440 | ||
df99a9ef | 441 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 442 | if (!sub_dir) { |
582deb84 ZJS |
443 | if (errno != ENOENT) |
444 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
445 | |
446 | continue; | |
447 | } | |
448 | ||
78a92a5a | 449 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
450 | if (q < 0) |
451 | r = q; | |
452 | } | |
453 | ||
24f3a374 LP |
454 | /* Note: if you are wondering why we don't |
455 | * support the sticky bit for excluding | |
456 | * directories from cleaning like we do it for | |
457 | * other file system objects: well, the sticky | |
458 | * bit already has a meaning for directories, | |
459 | * so we don't want to overload that. */ | |
460 | ||
582deb84 ZJS |
461 | if (keep_this_level) { |
462 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 463 | continue; |
582deb84 | 464 | } |
24f3a374 | 465 | |
3b63d2d3 | 466 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
467 | age = timespec_load(&s.st_mtim); |
468 | if (age >= cutoff) { | |
469 | char a[FORMAT_TIMESTAMP_MAX]; | |
470 | /* Follows spelling in stat(1). */ | |
471 | log_debug("Directory \"%s\": modify time %s is too new.", | |
472 | sub_path, | |
473 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 474 | continue; |
582deb84 ZJS |
475 | } |
476 | ||
477 | age = timespec_load(&s.st_atim); | |
478 | if (age >= cutoff) { | |
479 | char a[FORMAT_TIMESTAMP_MAX]; | |
480 | log_debug("Directory \"%s\": access time %s is too new.", | |
481 | sub_path, | |
482 | format_timestamp_us(a, sizeof(a), age)); | |
483 | continue; | |
484 | } | |
3b63d2d3 | 485 | |
61253220 ZJS |
486 | log_debug("Removing directory \"%s\".", sub_path); |
487 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
488 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
489 | log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
490 | r = -errno; | |
3b63d2d3 | 491 | } |
3b63d2d3 LP |
492 | |
493 | } else { | |
9c73736d LP |
494 | /* Skip files for which the sticky bit is |
495 | * set. These are semantics we define, and are | |
496 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
497 | * specification for details. */ | |
582deb84 ZJS |
498 | if (s.st_mode & S_ISVTX) { |
499 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 500 | continue; |
582deb84 | 501 | } |
9c73736d | 502 | |
582deb84 | 503 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
504 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
505 | ".journal", | |
506 | "aquota.user", | |
507 | "aquota.group")) { | |
582deb84 | 508 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 509 | continue; |
582deb84 | 510 | } |
3b63d2d3 | 511 | |
17b90525 | 512 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
513 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
514 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 515 | continue; |
582deb84 | 516 | } |
17b90525 | 517 | |
78ab08eb | 518 | /* Ignore device nodes */ |
582deb84 ZJS |
519 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
520 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 521 | continue; |
582deb84 | 522 | } |
78ab08eb | 523 | |
24f3a374 LP |
524 | /* Keep files on this level around if this is |
525 | * requested */ | |
582deb84 ZJS |
526 | if (keep_this_level) { |
527 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 528 | continue; |
582deb84 | 529 | } |
24f3a374 | 530 | |
582deb84 ZJS |
531 | age = timespec_load(&s.st_mtim); |
532 | if (age >= cutoff) { | |
533 | char a[FORMAT_TIMESTAMP_MAX]; | |
534 | /* Follows spelling in stat(1). */ | |
535 | log_debug("File \"%s\": modify time %s is too new.", | |
536 | sub_path, | |
537 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 538 | continue; |
582deb84 | 539 | } |
3b63d2d3 | 540 | |
582deb84 ZJS |
541 | age = timespec_load(&s.st_atim); |
542 | if (age >= cutoff) { | |
543 | char a[FORMAT_TIMESTAMP_MAX]; | |
544 | log_debug("File \"%s\": access time %s is too new.", | |
545 | sub_path, | |
546 | format_timestamp_us(a, sizeof(a), age)); | |
547 | continue; | |
548 | } | |
3b63d2d3 | 549 | |
582deb84 ZJS |
550 | age = timespec_load(&s.st_ctim); |
551 | if (age >= cutoff) { | |
552 | char a[FORMAT_TIMESTAMP_MAX]; | |
553 | log_debug("File \"%s\": change time %s is too new.", | |
554 | sub_path, | |
555 | format_timestamp_us(a, sizeof(a), age)); | |
556 | continue; | |
3b63d2d3 LP |
557 | } |
558 | ||
582deb84 ZJS |
559 | log_debug("unlink \"%s\"", sub_path); |
560 | ||
561 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
562 | if (errno != ENOENT) | |
563 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
564 | ||
3b63d2d3 LP |
565 | deleted = true; |
566 | } | |
567 | } | |
568 | ||
569 | finish: | |
570 | if (deleted) { | |
582deb84 ZJS |
571 | usec_t age1, age2; |
572 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
573 | ||
3b63d2d3 LP |
574 | /* Restore original directory timestamps */ |
575 | times[0] = ds->st_atim; | |
576 | times[1] = ds->st_mtim; | |
577 | ||
582deb84 ZJS |
578 | age1 = timespec_load(&ds->st_atim); |
579 | age2 = timespec_load(&ds->st_mtim); | |
580 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
581 | p, | |
582 | format_timestamp_us(a, sizeof(a), age1), | |
583 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 584 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 585 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
586 | } |
587 | ||
3b63d2d3 LP |
588 | return r; |
589 | } | |
590 | ||
b705ab6a | 591 | static int path_set_perms(Item *i, const char *path) { |
48b8aaa8 | 592 | _cleanup_close_ int fd = -1; |
1924a97d | 593 | struct stat st; |
1924a97d | 594 | |
cde684a2 LP |
595 | assert(i); |
596 | assert(path); | |
597 | ||
48b8aaa8 LP |
598 | /* We open the file with O_PATH here, to make the operation |
599 | * somewhat atomic. Also there's unfortunately no fchmodat() | |
600 | * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via | |
601 | * O_PATH. */ | |
602 | ||
603 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); | |
604 | if (fd < 0) | |
605 | return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); | |
606 | ||
607 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
608 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1924a97d | 609 | |
48b8aaa8 LP |
610 | if (S_ISLNK(st.st_mode)) |
611 | log_debug("Skipping mode an owner fix for symlink %s.", path); | |
612 | else { | |
613 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; | |
614 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
abef3f91 | 615 | |
48b8aaa8 LP |
616 | /* not using i->path directly because it may be a glob */ |
617 | if (i->mode_set) { | |
618 | mode_t m = i->mode; | |
619 | ||
620 | if (i->mask_perms) { | |
621 | if (!(st.st_mode & 0111)) | |
622 | m &= ~0111; | |
623 | if (!(st.st_mode & 0222)) | |
7d6884b6 | 624 | m &= ~0222; |
48b8aaa8 LP |
625 | if (!(st.st_mode & 0444)) |
626 | m &= ~0444; | |
627 | if (!S_ISDIR(st.st_mode)) | |
628 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
629 | } | |
abef3f91 | 630 | |
48b8aaa8 LP |
631 | if (m == (st.st_mode & 07777)) |
632 | log_debug("\"%s\" has right mode %o", path, st.st_mode); | |
633 | else { | |
634 | log_debug("chmod \"%s\" to mode %o", path, m); | |
635 | if (chmod(fn, m) < 0) | |
636 | return log_error_errno(errno, "chmod(%s) failed: %m", path); | |
637 | } | |
062e01bb | 638 | } |
062e01bb | 639 | |
48b8aaa8 LP |
640 | if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
641 | (i->uid_set || i->gid_set)) { | |
642 | log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, | |
643 | path, | |
644 | i->uid_set ? i->uid : UID_INVALID, | |
645 | i->gid_set ? i->gid : GID_INVALID); | |
646 | if (chown(fn, | |
647 | i->uid_set ? i->uid : UID_INVALID, | |
648 | i->gid_set ? i->gid : GID_INVALID) < 0) | |
7d6884b6 | 649 | return log_error_errno(errno, "chown(%s) failed: %m", path); |
48b8aaa8 | 650 | } |
582deb84 | 651 | } |
062e01bb | 652 | |
48b8aaa8 LP |
653 | fd = safe_close(fd); |
654 | ||
9855d6c7 | 655 | return label_fix(path, false, false); |
062e01bb MS |
656 | } |
657 | ||
bd550f78 | 658 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
659 | const char *p; |
660 | int r; | |
661 | ||
662 | assert(i); | |
505ef0e3 | 663 | assert(i->argument); |
ebf4e801 | 664 | |
ebf4e801 MW |
665 | p = i->argument; |
666 | ||
4034a06d | 667 | for (;;) { |
bd550f78 | 668 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
4034a06d | 669 | |
12ba2c44 | 670 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 671 | if (r < 0) |
bd550f78 | 672 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
673 | if (r <= 0) |
674 | break; | |
505ef0e3 | 675 | |
bd550f78 LP |
676 | r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
677 | if (r < 0) | |
678 | return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); | |
679 | ||
680 | r = split_pair(xattr_replaced, "=", &name, &value); | |
ebf4e801 | 681 | if (r < 0) { |
4034a06d | 682 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
683 | continue; |
684 | } | |
505ef0e3 | 685 | |
4034a06d | 686 | if (isempty(name) || isempty(value)) { |
bd550f78 | 687 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
688 | continue; |
689 | } | |
505ef0e3 | 690 | |
4034a06d | 691 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 692 | return log_oom(); |
505ef0e3 | 693 | |
4034a06d | 694 | name = value = NULL; |
ebf4e801 MW |
695 | } |
696 | ||
4034a06d | 697 | return 0; |
ebf4e801 MW |
698 | } |
699 | ||
b705ab6a | 700 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
701 | char **name, **value; |
702 | ||
703 | assert(i); | |
704 | assert(path); | |
705 | ||
ebf4e801 MW |
706 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
707 | int n; | |
505ef0e3 | 708 | |
ebf4e801 | 709 | n = strlen(*value); |
bd550f78 | 710 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
ebf4e801 | 711 | if (lsetxattr(path, *name, *value, n, 0) < 0) { |
bd550f78 | 712 | log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path); |
ebf4e801 MW |
713 | return -errno; |
714 | } | |
715 | } | |
716 | return 0; | |
717 | } | |
718 | ||
bd550f78 | 719 | static int parse_acls_from_arg(Item *item) { |
f8eeeaf9 ZJS |
720 | #ifdef HAVE_ACL |
721 | int r; | |
f8eeeaf9 ZJS |
722 | |
723 | assert(item); | |
724 | ||
50d9e46d ZJS |
725 | /* If force (= modify) is set, we will not modify the acl |
726 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 727 | |
50d9e46d | 728 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 729 | if (r < 0) |
4034a06d | 730 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
731 | #else |
732 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
733 | #endif | |
734 | ||
735 | return 0; | |
736 | } | |
737 | ||
35888b67 | 738 | #ifdef HAVE_ACL |
48b8aaa8 LP |
739 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
740 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 741 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
742 | int r; |
743 | ||
d873e877 HPD |
744 | /* Returns 0 for success, positive error if already warned, |
745 | * negative error otherwise. */ | |
746 | ||
50d9e46d | 747 | if (modify) { |
dd4105b0 | 748 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
749 | if (r < 0) |
750 | return r; | |
50d9e46d | 751 | |
dd4105b0 ZJS |
752 | r = calc_acl_mask_if_needed(&dup); |
753 | if (r < 0) | |
754 | return r; | |
755 | } else { | |
756 | dup = acl_dup(acl); | |
757 | if (!dup) | |
758 | return -errno; | |
759 | ||
760 | /* the mask was already added earlier if needed */ | |
761 | } | |
762 | ||
763 | r = add_base_acls_if_needed(&dup, path); | |
764 | if (r < 0) | |
765 | return r; | |
766 | ||
582deb84 | 767 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 768 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 769 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 770 | strna(t), pretty); |
50d9e46d | 771 | |
582deb84 ZJS |
772 | r = acl_set_file(path, type, dup); |
773 | if (r < 0) | |
3ea40b78 LP |
774 | /* Return positive to indicate we already warned */ |
775 | return -log_error_errno(errno, | |
776 | "Setting %s ACL \"%s\" on %s failed: %m", | |
777 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 778 | strna(t), pretty); |
d873e877 | 779 | |
582deb84 | 780 | return 0; |
50d9e46d | 781 | } |
35888b67 | 782 | #endif |
50d9e46d | 783 | |
b705ab6a | 784 | static int path_set_acls(Item *item, const char *path) { |
d873e877 | 785 | int r = 0; |
f8eeeaf9 | 786 | #ifdef HAVE_ACL |
48b8aaa8 LP |
787 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
788 | _cleanup_close_ int fd = -1; | |
789 | struct stat st; | |
790 | ||
f8eeeaf9 ZJS |
791 | assert(item); |
792 | assert(path); | |
793 | ||
48b8aaa8 LP |
794 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); |
795 | if (fd < 0) | |
796 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
797 | ||
798 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
799 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
800 | ||
801 | if (S_ISLNK(st.st_mode)) { | |
802 | log_debug("Skipping ACL fix for symlink %s.", path); | |
803 | return 0; | |
804 | } | |
805 | ||
806 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
807 | ||
d873e877 | 808 | if (item->acl_access) |
48b8aaa8 | 809 | r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 810 | |
d873e877 | 811 | if (r == 0 && item->acl_default) |
48b8aaa8 | 812 | r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 813 | |
d873e877 HPD |
814 | if (r > 0) |
815 | return -r; /* already warned */ | |
15411c0c | 816 | else if (r == -EOPNOTSUPP) { |
d873e877 HPD |
817 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
818 | return 0; | |
819 | } else if (r < 0) | |
820 | log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
821 | #endif | |
822 | return r; | |
f8eeeaf9 ZJS |
823 | } |
824 | ||
88ec4dfa LP |
825 | #define ATTRIBUTES_ALL \ |
826 | (FS_NOATIME_FL | \ | |
827 | FS_SYNC_FL | \ | |
828 | FS_DIRSYNC_FL | \ | |
829 | FS_APPEND_FL | \ | |
830 | FS_COMPR_FL | \ | |
831 | FS_NODUMP_FL | \ | |
832 | FS_EXTENT_FL | \ | |
833 | FS_IMMUTABLE_FL | \ | |
834 | FS_JOURNAL_DATA_FL | \ | |
835 | FS_SECRM_FL | \ | |
836 | FS_UNRM_FL | \ | |
837 | FS_NOTAIL_FL | \ | |
838 | FS_TOPDIR_FL | \ | |
839 | FS_NOCOW_FL) | |
840 | ||
bd550f78 | 841 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
842 | |
843 | static const struct { | |
844 | char character; | |
845 | unsigned value; | |
846 | } attributes[] = { | |
847 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
848 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
849 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
850 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
851 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
852 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
853 | { 'e', FS_EXTENT_FL }, /* Top of directory hierarchies*/ | |
854 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ | |
855 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
856 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
857 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
858 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
859 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ | |
860 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ | |
22c3a6ca | 861 | }; |
88ec4dfa | 862 | |
22c3a6ca GB |
863 | enum { |
864 | MODE_ADD, | |
865 | MODE_DEL, | |
866 | MODE_SET | |
867 | } mode = MODE_ADD; | |
22c3a6ca | 868 | |
88ec4dfa LP |
869 | unsigned value = 0, mask = 0; |
870 | const char *p; | |
22c3a6ca | 871 | |
88ec4dfa LP |
872 | assert(item); |
873 | ||
874 | p = item->argument; | |
875 | if (p) { | |
876 | if (*p == '+') { | |
877 | mode = MODE_ADD; | |
878 | p++; | |
879 | } else if (*p == '-') { | |
880 | mode = MODE_DEL; | |
881 | p++; | |
882 | } else if (*p == '=') { | |
883 | mode = MODE_SET; | |
884 | p++; | |
885 | } | |
22c3a6ca GB |
886 | } |
887 | ||
88ec4dfa LP |
888 | if (isempty(p) && mode != MODE_SET) { |
889 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
890 | return -EINVAL; |
891 | } | |
88ec4dfa LP |
892 | |
893 | for (; p && *p ; p++) { | |
894 | unsigned i, v; | |
895 | ||
896 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
897 | if (*p == attributes[i].character) | |
898 | break; | |
899 | ||
900 | if (i >= ELEMENTSOF(attributes)) { | |
901 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
902 | return -EINVAL; |
903 | } | |
88ec4dfa LP |
904 | |
905 | v = attributes[i].value; | |
906 | ||
22c3a6ca | 907 | if (mode == MODE_ADD || mode == MODE_SET) |
88ec4dfa | 908 | value |= v; |
22c3a6ca | 909 | else |
88ec4dfa LP |
910 | value &= ~v; |
911 | ||
912 | mask |= v; | |
22c3a6ca GB |
913 | } |
914 | ||
915 | if (mode == MODE_SET) | |
88ec4dfa | 916 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 917 | |
88ec4dfa | 918 | assert(mask != 0); |
22c3a6ca | 919 | |
88ec4dfa LP |
920 | item->attribute_mask = mask; |
921 | item->attribute_value = value; | |
922 | item->attribute_set = true; | |
22c3a6ca GB |
923 | |
924 | return 0; | |
22c3a6ca GB |
925 | } |
926 | ||
88ec4dfa | 927 | static int path_set_attribute(Item *item, const char *path) { |
22c3a6ca | 928 | _cleanup_close_ int fd = -1; |
22c3a6ca | 929 | struct stat st; |
88ec4dfa LP |
930 | unsigned f; |
931 | int r; | |
22c3a6ca | 932 | |
88ec4dfa | 933 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 934 | return 0; |
22c3a6ca | 935 | |
48b8aaa8 LP |
936 | fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
937 | if (fd < 0) { | |
938 | if (errno == ELOOP) | |
939 | return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); | |
940 | ||
88ec4dfa | 941 | return log_error_errno(errno, "Cannot open '%s': %m", path); |
48b8aaa8 | 942 | } |
22c3a6ca | 943 | |
88ec4dfa LP |
944 | if (fstat(fd, &st) < 0) |
945 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
946 | ||
947 | /* Issuing the file attribute ioctls on device nodes is not | |
948 | * safe, as that will be delivered to the drivers, not the | |
949 | * file system containing the device node. */ | |
950 | if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { | |
951 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); | |
952 | return -EINVAL; | |
953 | } | |
954 | ||
955 | f = item->attribute_value & item->attribute_mask; | |
956 | ||
957 | /* Mask away directory-specific flags */ | |
22c3a6ca GB |
958 | if (!S_ISDIR(st.st_mode)) |
959 | f &= ~FS_DIRSYNC_FL; | |
88ec4dfa LP |
960 | |
961 | r = chattr_fd(fd, f, item->attribute_mask); | |
22c3a6ca | 962 | if (r < 0) |
ad75a97f LP |
963 | log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING, |
964 | r, | |
965 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
966 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
967 | |
968 | return 0; | |
969 | } | |
970 | ||
d4e9eb91 | 971 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
972 | _cleanup_close_ int fd = -1; |
973 | int flags, r = 0; | |
d4e9eb91 | 974 | struct stat st; |
d4e9eb91 | 975 | |
874f1947 LP |
976 | assert(i); |
977 | assert(path); | |
978 | ||
43ad6e31 LP |
979 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
980 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 981 | |
43ad6e31 | 982 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 983 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 984 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 985 | mac_selinux_create_file_clear(); |
5c0d398d | 986 | } |
d4e9eb91 DR |
987 | |
988 | if (fd < 0) { | |
582deb84 ZJS |
989 | if (i->type == WRITE_FILE && errno == ENOENT) { |
990 | log_debug_errno(errno, "Not writing \"%s\": %m", path); | |
d4e9eb91 | 991 | return 0; |
582deb84 | 992 | } |
d4e9eb91 | 993 | |
f44b28fd MO |
994 | r = -errno; |
995 | if (!i->argument && errno == EROFS && stat(path, &st) == 0 && | |
996 | (i->type == CREATE_FILE || st.st_size == 0)) | |
997 | goto check_mode; | |
998 | ||
999 | return log_error_errno(r, "Failed to create file %s: %m", path); | |
d4e9eb91 DR |
1000 | } |
1001 | ||
1002 | if (i->argument) { | |
bd550f78 | 1003 | _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
582deb84 | 1004 | |
4034a06d | 1005 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 1006 | |
527b7a42 LP |
1007 | r = cunescape(i->argument, 0, &unescaped); |
1008 | if (r < 0) | |
1009 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
d4e9eb91 | 1010 | |
bd550f78 LP |
1011 | r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
1012 | if (r < 0) | |
1013 | return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); | |
1014 | ||
1015 | r = loop_write(fd, replaced, strlen(replaced), false); | |
582deb84 ZJS |
1016 | if (r < 0) |
1017 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1018 | } else | |
1019 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1020 | |
43ad6e31 | 1021 | fd = safe_close(fd); |
3612fbc1 | 1022 | |
4a62c710 MS |
1023 | if (stat(path, &st) < 0) |
1024 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 | 1025 | |
f44b28fd | 1026 | check_mode: |
d4e9eb91 DR |
1027 | if (!S_ISREG(st.st_mode)) { |
1028 | log_error("%s is not a file.", path); | |
1029 | return -EEXIST; | |
1030 | } | |
1031 | ||
b705ab6a | 1032 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1033 | if (r < 0) |
1034 | return r; | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
081043cf ZJS |
1039 | typedef int (*action_t)(Item *, const char *); |
1040 | ||
1041 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 1042 | _cleanup_closedir_ DIR *d; |
e73a03e0 LP |
1043 | int r = 0; |
1044 | ||
1045 | assert(i); | |
1046 | assert(path); | |
a8d88783 MS |
1047 | |
1048 | /* This returns the first error we run into, but nevertheless | |
1049 | * tries to go on */ | |
1050 | ||
df99a9ef ZJS |
1051 | d = opendir_nomod(path); |
1052 | if (!d) | |
e73a03e0 | 1053 | return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
a8d88783 MS |
1054 | |
1055 | for (;;) { | |
e73a03e0 | 1056 | _cleanup_free_ char *p = NULL; |
7d5e9c0f | 1057 | struct dirent *de; |
e73a03e0 | 1058 | int q; |
a8d88783 | 1059 | |
d78096b3 FW |
1060 | errno = 0; |
1061 | de = readdir(d); | |
e73a03e0 LP |
1062 | if (!de) { |
1063 | if (errno != 0 && r == 0) | |
1064 | r = -errno; | |
a8d88783 | 1065 | |
a8d88783 | 1066 | break; |
e73a03e0 | 1067 | } |
a8d88783 | 1068 | |
7fcb4b9b | 1069 | if (STR_IN_SET(de->d_name, ".", "..")) |
a8d88783 MS |
1070 | continue; |
1071 | ||
e73a03e0 LP |
1072 | p = strjoin(path, "/", de->d_name, NULL); |
1073 | if (!p) | |
1074 | return -ENOMEM; | |
a8d88783 | 1075 | |
081043cf | 1076 | q = action(i, p); |
e73a03e0 LP |
1077 | if (q < 0 && q != -ENOENT && r == 0) |
1078 | r = q; | |
a8d88783 | 1079 | |
e73a03e0 | 1080 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 1081 | q = item_do_children(i, p, action); |
e73a03e0 LP |
1082 | if (q < 0 && r == 0) |
1083 | r = q; | |
a8d88783 | 1084 | } |
a8d88783 MS |
1085 | } |
1086 | ||
e73a03e0 | 1087 | return r; |
a8d88783 MS |
1088 | } |
1089 | ||
081043cf | 1090 | static int glob_item(Item *i, action_t action, bool recursive) { |
df99a9ef | 1091 | _cleanup_globfree_ glob_t g = { |
ebf31a1f ZJS |
1092 | .gl_closedir = (void (*)(void *)) closedir, |
1093 | .gl_readdir = (struct dirent *(*)(void *)) readdir, | |
1094 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
df99a9ef ZJS |
1095 | .gl_lstat = lstat, |
1096 | .gl_stat = stat, | |
1097 | }; | |
e73a03e0 | 1098 | int r = 0, k; |
99e68c0b MS |
1099 | char **fn; |
1100 | ||
99e68c0b | 1101 | errno = 0; |
df99a9ef | 1102 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); |
081043cf ZJS |
1103 | if (k != 0 && k != GLOB_NOMATCH) |
1104 | return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1105 | |
c84a9488 ZJS |
1106 | STRV_FOREACH(fn, g.gl_pathv) { |
1107 | k = action(i, *fn); | |
e73a03e0 | 1108 | if (k < 0 && r == 0) |
99e68c0b | 1109 | r = k; |
081043cf ZJS |
1110 | |
1111 | if (recursive) { | |
1112 | k = item_do_children(i, *fn, action); | |
1113 | if (k < 0 && r == 0) | |
1114 | r = k; | |
1115 | } | |
c84a9488 | 1116 | } |
99e68c0b | 1117 | |
99e68c0b MS |
1118 | return r; |
1119 | } | |
1120 | ||
294929f8 ZJS |
1121 | typedef enum { |
1122 | CREATION_NORMAL, | |
1123 | CREATION_EXISTING, | |
1124 | CREATION_FORCE, | |
7a7d5db7 LP |
1125 | _CREATION_MODE_MAX, |
1126 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1127 | } CreationMode; |
1128 | ||
7a7d5db7 LP |
1129 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1130 | [CREATION_NORMAL] = "Created", | |
1131 | [CREATION_EXISTING] = "Found existing", | |
1132 | [CREATION_FORCE] = "Created replacement", | |
1133 | }; | |
1134 | ||
1135 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1136 | |
3b63d2d3 | 1137 | static int create_item(Item *i) { |
75c2a9fd | 1138 | _cleanup_free_ char *resolved = NULL; |
3b63d2d3 | 1139 | struct stat st; |
df28bc08 | 1140 | int r = 0; |
294929f8 | 1141 | CreationMode creation; |
5008d581 | 1142 | |
3b63d2d3 | 1143 | assert(i); |
5008d581 | 1144 | |
582deb84 ZJS |
1145 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1146 | ||
3b63d2d3 LP |
1147 | switch (i->type) { |
1148 | ||
1149 | case IGNORE_PATH: | |
78a92a5a | 1150 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1151 | case REMOVE_PATH: |
1152 | case RECURSIVE_REMOVE_PATH: | |
1153 | return 0; | |
5008d581 | 1154 | |
3b63d2d3 | 1155 | case CREATE_FILE: |
31ed59c5 | 1156 | case TRUNCATE_FILE: |
1845fdd9 DR |
1157 | r = write_one_file(i, i->path); |
1158 | if (r < 0) | |
1159 | return r; | |
1160 | break; | |
265ffa1e | 1161 | |
5c5ccf12 | 1162 | case COPY_FILES: { |
5c5ccf12 LP |
1163 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1164 | if (r < 0) | |
1165 | return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); | |
1166 | ||
1167 | log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); | |
1168 | r = copy_tree(resolved, i->path, false); | |
f44b28fd MO |
1169 | |
1170 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1171 | r = -EEXIST; | |
1172 | ||
849958d1 | 1173 | if (r < 0) { |
e156347e LP |
1174 | struct stat a, b; |
1175 | ||
8d3d7072 MS |
1176 | if (r != -EEXIST) |
1177 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1178 | |
5c5ccf12 LP |
1179 | if (stat(resolved, &a) < 0) |
1180 | return log_error_errno(errno, "stat(%s) failed: %m", resolved); | |
e156347e | 1181 | |
4a62c710 MS |
1182 | if (stat(i->path, &b) < 0) |
1183 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1184 | |
1185 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1186 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1187 | return 0; | |
1188 | } | |
849958d1 LP |
1189 | } |
1190 | ||
b705ab6a | 1191 | r = path_set_perms(i, i->path); |
849958d1 LP |
1192 | if (r < 0) |
1193 | return r; | |
1194 | ||
1195 | break; | |
1196 | ||
d4e9eb91 | 1197 | case WRITE_FILE: |
081043cf | 1198 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
1199 | if (r < 0) |
1200 | return r; | |
5008d581 | 1201 | |
3b63d2d3 LP |
1202 | break; |
1203 | ||
3b63d2d3 | 1204 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1205 | case TRUNCATE_DIRECTORY: |
1206 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1207 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1208 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
5008d581 | 1209 | |
d7b8eec7 | 1210 | RUN_WITH_UMASK(0000) |
5c0d398d | 1211 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1212 | |
5fb13eb5 LP |
1213 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
1214 | RUN_WITH_UMASK((~i->mode) & 0777) | |
d7b8eec7 | 1215 | r = btrfs_subvol_make(i->path); |
5fb13eb5 | 1216 | } else |
d7b8eec7 LP |
1217 | r = 0; |
1218 | ||
582deb84 | 1219 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1220 | RUN_WITH_UMASK(0000) |
1221 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1222 | |
e156347e | 1223 | if (r < 0) { |
7b135a73 | 1224 | int k; |
5008d581 | 1225 | |
7b135a73 LP |
1226 | if (r != -EEXIST && r != -EROFS) |
1227 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); | |
5008d581 | 1228 | |
7b135a73 LP |
1229 | k = is_dir(i->path, false); |
1230 | if (k == -ENOENT && r == -EROFS) | |
1231 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1232 | if (k < 0) | |
1233 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1234 | if (!k) { | |
1235 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1236 | return 0; |
1237 | } | |
294929f8 ZJS |
1238 | |
1239 | creation = CREATION_EXISTING; | |
1240 | } else | |
1241 | creation = CREATION_NORMAL; | |
7b135a73 | 1242 | |
7a7d5db7 | 1243 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1244 | |
5fb13eb5 LP |
1245 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1246 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
1247 | if (r == -ENOTTY) { | |
1248 | 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); | |
1249 | return 0; | |
1250 | } | |
1251 | if (r == -EROFS) { | |
1252 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of read-only file system: %m", i->path); | |
1253 | return 0; | |
1254 | } | |
1255 | if (r < 0) | |
1256 | return log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1257 | if (r > 0) | |
1258 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); | |
1259 | if (r == 0) | |
1260 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); | |
1261 | } | |
1262 | ||
b705ab6a | 1263 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1264 | if (r < 0) |
1265 | return r; | |
3b63d2d3 LP |
1266 | |
1267 | break; | |
ee17ee7c LP |
1268 | |
1269 | case CREATE_FIFO: | |
1270 | ||
5c0d398d | 1271 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1272 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1273 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1274 | mac_selinux_create_file_clear(); |
5c0d398d | 1275 | } |
ee17ee7c | 1276 | |
1554afae | 1277 | if (r < 0) { |
4a62c710 MS |
1278 | if (errno != EEXIST) |
1279 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1280 | |
a542c4dc | 1281 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1282 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1283 | |
1554afae LP |
1284 | if (!S_ISFIFO(st.st_mode)) { |
1285 | ||
1286 | if (i->force) { | |
1554afae | 1287 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1288 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1289 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1290 | mac_selinux_create_file_clear(); |
1554afae LP |
1291 | } |
1292 | ||
f647962d MS |
1293 | if (r < 0) |
1294 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1295 | creation = CREATION_FORCE; |
1554afae | 1296 | } else { |
a542c4dc | 1297 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1298 | return 0; |
1299 | } | |
294929f8 ZJS |
1300 | } else |
1301 | creation = CREATION_EXISTING; | |
1302 | } else | |
1303 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1304 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1305 | |
b705ab6a | 1306 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1307 | if (r < 0) |
1308 | return r; | |
ee17ee7c LP |
1309 | |
1310 | break; | |
5c5ccf12 | 1311 | } |
a8d88783 | 1312 | |
5c5ccf12 | 1313 | case CREATE_SYMLINK: { |
5c5ccf12 LP |
1314 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1315 | if (r < 0) | |
1316 | return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); | |
468d726b | 1317 | |
ecabcf8b | 1318 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1319 | r = symlink(resolved, i->path); |
ecabcf8b | 1320 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1321 | |
468d726b | 1322 | if (r < 0) { |
2e78fa79 | 1323 | _cleanup_free_ char *x = NULL; |
468d726b | 1324 | |
4a62c710 | 1325 | if (errno != EEXIST) |
5c5ccf12 | 1326 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
2e78fa79 LP |
1327 | |
1328 | r = readlink_malloc(i->path, &x); | |
5c5ccf12 | 1329 | if (r < 0 || !streq(resolved, x)) { |
2e78fa79 LP |
1330 | |
1331 | if (i->force) { | |
ecabcf8b | 1332 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1333 | r = symlink_atomic(resolved, i->path); |
ecabcf8b | 1334 | mac_selinux_create_file_clear(); |
2e78fa79 | 1335 | |
f647962d | 1336 | if (r < 0) |
5c5ccf12 | 1337 | return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
a542c4dc | 1338 | |
294929f8 | 1339 | creation = CREATION_FORCE; |
1554afae | 1340 | } else { |
582deb84 | 1341 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1342 | return 0; |
1343 | } | |
294929f8 ZJS |
1344 | } else |
1345 | creation = CREATION_EXISTING; | |
1346 | } else | |
a542c4dc | 1347 | |
294929f8 | 1348 | creation = CREATION_NORMAL; |
7a7d5db7 | 1349 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1350 | break; |
5c5ccf12 | 1351 | } |
468d726b LP |
1352 | |
1353 | case CREATE_BLOCK_DEVICE: | |
1354 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1355 | mode_t file_type; |
1356 | ||
1357 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1358 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1359 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1360 | that case to avoid noise, and we don't support |
1361 | virtualized devices in containers anyway. */ | |
1362 | ||
1363 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1554afae | 1367 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1368 | |
5c0d398d | 1369 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1370 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1371 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1372 | mac_selinux_create_file_clear(); |
5c0d398d | 1373 | } |
468d726b | 1374 | |
6555ad8e KS |
1375 | if (r < 0) { |
1376 | if (errno == EPERM) { | |
1377 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1378 | "skipping creation of device node %s.", i->path); | |
1379 | return 0; | |
1380 | } | |
1381 | ||
4a62c710 MS |
1382 | if (errno != EEXIST) |
1383 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1384 | |
a542c4dc | 1385 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1386 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1387 | |
1554afae LP |
1388 | if ((st.st_mode & S_IFMT) != file_type) { |
1389 | ||
1390 | if (i->force) { | |
1391 | ||
1392 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1393 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1394 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1395 | mac_selinux_create_file_clear(); |
1554afae LP |
1396 | } |
1397 | ||
f647962d | 1398 | if (r < 0) |
294929f8 ZJS |
1399 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1400 | creation = CREATION_FORCE; | |
1554afae LP |
1401 | } else { |
1402 | log_debug("%s is not a device node.", i->path); | |
1403 | return 0; | |
1404 | } | |
294929f8 ZJS |
1405 | } else |
1406 | creation = CREATION_EXISTING; | |
1407 | } else | |
1408 | creation = CREATION_NORMAL; | |
a542c4dc | 1409 | |
294929f8 | 1410 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1411 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1412 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1413 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1414 | |
b705ab6a | 1415 | r = path_set_perms(i, i->path); |
468d726b LP |
1416 | if (r < 0) |
1417 | return r; | |
1418 | ||
1419 | break; | |
1420 | } | |
1421 | ||
e73a03e0 | 1422 | case ADJUST_MODE: |
777b87e7 | 1423 | case RELABEL_PATH: |
b705ab6a | 1424 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1425 | if (r < 0) |
96ca8194 | 1426 | return r; |
777b87e7 MS |
1427 | break; |
1428 | ||
a8d88783 | 1429 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1430 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1431 | if (r < 0) |
1432 | return r; | |
ebf4e801 | 1433 | break; |
e73a03e0 | 1434 | |
ebf4e801 | 1435 | case SET_XATTR: |
b705ab6a ZJS |
1436 | r = glob_item(i, path_set_xattrs, false); |
1437 | if (r < 0) | |
1438 | return r; | |
1439 | break; | |
1440 | ||
1441 | case RECURSIVE_SET_XATTR: | |
1442 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1443 | if (r < 0) |
1444 | return r; | |
e73a03e0 | 1445 | break; |
f8eeeaf9 ZJS |
1446 | |
1447 | case SET_ACL: | |
b705ab6a | 1448 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1449 | if (r < 0) |
1450 | return r; | |
b705ab6a ZJS |
1451 | break; |
1452 | ||
1453 | case RECURSIVE_SET_ACL: | |
1454 | r = glob_item(i, path_set_acls, true); | |
1455 | if (r < 0) | |
1456 | return r; | |
1457 | break; | |
22c3a6ca | 1458 | |
88ec4dfa LP |
1459 | case SET_ATTRIBUTE: |
1460 | r = glob_item(i, path_set_attribute, false); | |
22c3a6ca GB |
1461 | if (r < 0) |
1462 | return r; | |
1463 | break; | |
1464 | ||
88ec4dfa LP |
1465 | case RECURSIVE_SET_ATTRIBUTE: |
1466 | r = glob_item(i, path_set_attribute, true); | |
22c3a6ca GB |
1467 | if (r < 0) |
1468 | return r; | |
1469 | break; | |
3b63d2d3 LP |
1470 | } |
1471 | ||
f05bc3f7 | 1472 | return 0; |
3b63d2d3 LP |
1473 | } |
1474 | ||
a0896123 | 1475 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1476 | int r; |
1477 | ||
1478 | assert(i); | |
1479 | ||
1480 | switch (i->type) { | |
1481 | ||
3b63d2d3 | 1482 | case REMOVE_PATH: |
4a62c710 | 1483 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1484 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1485 | |
1486 | break; | |
1487 | ||
1488 | case TRUNCATE_DIRECTORY: | |
1489 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1490 | /* FIXME: we probably should use dir_cleanup() here |
1491 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1492 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1493 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1494 | if (r < 0 && r != -ENOENT) |
1495 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1496 | |
1497 | break; | |
7fcb4b9b ZJS |
1498 | |
1499 | default: | |
1500 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1501 | } |
1502 | ||
1503 | return 0; | |
1504 | } | |
1505 | ||
a0896123 | 1506 | static int remove_item(Item *i) { |
99e68c0b MS |
1507 | int r = 0; |
1508 | ||
b8bb3e8f LP |
1509 | assert(i); |
1510 | ||
582deb84 ZJS |
1511 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1512 | ||
b8bb3e8f LP |
1513 | switch (i->type) { |
1514 | ||
1515 | case CREATE_FILE: | |
1516 | case TRUNCATE_FILE: | |
1517 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1518 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1519 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1520 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
ee17ee7c | 1521 | case CREATE_FIFO: |
468d726b LP |
1522 | case CREATE_SYMLINK: |
1523 | case CREATE_CHAR_DEVICE: | |
1524 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 1525 | case IGNORE_PATH: |
78a92a5a | 1526 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1527 | case ADJUST_MODE: |
777b87e7 | 1528 | case RELABEL_PATH: |
a8d88783 | 1529 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1530 | case WRITE_FILE: |
849958d1 | 1531 | case COPY_FILES: |
ebf4e801 | 1532 | case SET_XATTR: |
b705ab6a | 1533 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1534 | case SET_ACL: |
b705ab6a | 1535 | case RECURSIVE_SET_ACL: |
88ec4dfa LP |
1536 | case SET_ATTRIBUTE: |
1537 | case RECURSIVE_SET_ATTRIBUTE: | |
b8bb3e8f LP |
1538 | break; |
1539 | ||
1540 | case REMOVE_PATH: | |
1541 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1542 | case RECURSIVE_REMOVE_PATH: |
081043cf | 1543 | r = glob_item(i, remove_item_instance, false); |
99e68c0b | 1544 | break; |
b8bb3e8f LP |
1545 | } |
1546 | ||
99e68c0b | 1547 | return r; |
b8bb3e8f LP |
1548 | } |
1549 | ||
78a92a5a | 1550 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1551 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1552 | struct stat s, ps; |
1553 | bool mountpoint; | |
78a92a5a | 1554 | usec_t cutoff, n; |
582deb84 | 1555 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1556 | |
1557 | assert(i); | |
1558 | ||
1559 | if (!i->age_set) | |
1560 | return 0; | |
1561 | ||
1562 | n = now(CLOCK_REALTIME); | |
1563 | if (n < i->age) | |
1564 | return 0; | |
1565 | ||
1566 | cutoff = n - i->age; | |
1567 | ||
df99a9ef | 1568 | d = opendir_nomod(instance); |
78a92a5a | 1569 | if (!d) { |
582deb84 ZJS |
1570 | if (errno == ENOENT || errno == ENOTDIR) { |
1571 | log_debug_errno(errno, "Directory \"%s\": %m", instance); | |
78a92a5a | 1572 | return 0; |
582deb84 | 1573 | } |
78a92a5a | 1574 | |
582deb84 | 1575 | log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1576 | return -errno; |
1577 | } | |
1578 | ||
4a62c710 MS |
1579 | if (fstat(dirfd(d), &s) < 0) |
1580 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1581 | |
1582 | if (!S_ISDIR(s.st_mode)) { | |
1583 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1584 | return -ENOTDIR; |
78a92a5a MS |
1585 | } |
1586 | ||
4a62c710 MS |
1587 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1588 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a | 1589 | |
2bb158c1 | 1590 | mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
78a92a5a | 1591 | |
582deb84 ZJS |
1592 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1593 | mountpoint ? "mount point" : "directory", | |
1594 | instance, | |
1595 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1596 | ||
1597 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1598 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1599 | } |
1600 | ||
1601 | static int clean_item(Item *i) { | |
1602 | int r = 0; | |
1603 | ||
1604 | assert(i); | |
1605 | ||
582deb84 ZJS |
1606 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1607 | ||
78a92a5a MS |
1608 | switch (i->type) { |
1609 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1610 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1611 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1612 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
78a92a5a MS |
1613 | case TRUNCATE_DIRECTORY: |
1614 | case IGNORE_PATH: | |
849958d1 | 1615 | case COPY_FILES: |
78a92a5a MS |
1616 | clean_item_instance(i, i->path); |
1617 | break; | |
1618 | case IGNORE_DIRECTORY_PATH: | |
081043cf | 1619 | r = glob_item(i, clean_item_instance, false); |
78a92a5a MS |
1620 | break; |
1621 | default: | |
1622 | break; | |
1623 | } | |
1624 | ||
1625 | return r; | |
1626 | } | |
1627 | ||
3f93da98 ZJS |
1628 | static int process_item_array(ItemArray *array); |
1629 | ||
3b63d2d3 | 1630 | static int process_item(Item *i) { |
1e95893a | 1631 | int r, q, p, t = 0; |
9348f0e6 | 1632 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1633 | |
1634 | assert(i); | |
1635 | ||
1910cd0e LP |
1636 | if (i->done) |
1637 | return 0; | |
1638 | ||
1639 | i->done = true; | |
1640 | ||
9348f0e6 ZJS |
1641 | prefix = malloc(strlen(i->path) + 1); |
1642 | if (!prefix) | |
1643 | return log_oom(); | |
1644 | ||
1910cd0e | 1645 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1646 | ItemArray *j; |
1910cd0e | 1647 | |
ef43a391 | 1648 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
1649 | if (j) { |
1650 | int s; | |
1651 | ||
3f93da98 | 1652 | s = process_item_array(j); |
1db50423 ZJS |
1653 | if (s < 0 && t == 0) |
1654 | t = s; | |
1655 | } | |
1910cd0e LP |
1656 | } |
1657 | ||
3b63d2d3 | 1658 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1659 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1660 | p = arg_clean ? clean_item(i) : 0; |
1661 | ||
1db50423 ZJS |
1662 | return t < 0 ? t : |
1663 | r < 0 ? r : | |
1664 | q < 0 ? q : | |
1665 | p; | |
3b63d2d3 LP |
1666 | } |
1667 | ||
3f93da98 ZJS |
1668 | static int process_item_array(ItemArray *array) { |
1669 | unsigned n; | |
1670 | int r = 0, k; | |
753615e8 | 1671 | |
3f93da98 ZJS |
1672 | assert(array); |
1673 | ||
1674 | for (n = 0; n < array->count; n++) { | |
1675 | k = process_item(array->items + n); | |
1676 | if (k < 0 && r == 0) | |
1677 | r = k; | |
1678 | } | |
1679 | ||
1680 | return r; | |
1681 | } | |
3b63d2d3 | 1682 | |
3f93da98 ZJS |
1683 | static void item_free_contents(Item *i) { |
1684 | assert(i); | |
3b63d2d3 | 1685 | free(i->path); |
468d726b | 1686 | free(i->argument); |
ebf4e801 | 1687 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1688 | |
1689 | #ifdef HAVE_ACL | |
1690 | acl_free(i->acl_access); | |
1691 | acl_free(i->acl_default); | |
1692 | #endif | |
3b63d2d3 LP |
1693 | } |
1694 | ||
3f93da98 ZJS |
1695 | static void item_array_free(ItemArray *a) { |
1696 | unsigned n; | |
1697 | ||
1698 | if (!a) | |
1699 | return; | |
1700 | ||
1701 | for (n = 0; n < a->count; n++) | |
1702 | item_free_contents(a->items + n); | |
1703 | free(a->items); | |
1704 | free(a); | |
1705 | } | |
e2f2fb78 | 1706 | |
17493fa5 LP |
1707 | static int item_compare(const void *a, const void *b) { |
1708 | const Item *x = a, *y = b; | |
1709 | ||
1710 | /* Make sure that the ownership taking item is put first, so | |
1711 | * that we first create the node, and then can adjust it */ | |
1712 | ||
1713 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
1714 | return -1; | |
1715 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
1716 | return 1; | |
1717 | ||
1718 | return (int) x->type - (int) y->type; | |
1719 | } | |
1720 | ||
3f93da98 | 1721 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1722 | assert(a); |
1723 | assert(b); | |
3f93da98 | 1724 | assert(streq(a->path, b->path)); |
bfe95f35 | 1725 | |
3f93da98 ZJS |
1726 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1727 | /* check if the items are the same */ | |
1728 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1729 | |
3f93da98 ZJS |
1730 | a->uid_set == b->uid_set && |
1731 | a->uid == b->uid && | |
bfe95f35 | 1732 | |
3f93da98 ZJS |
1733 | a->gid_set == b->gid_set && |
1734 | a->gid == b->gid && | |
bfe95f35 | 1735 | |
3f93da98 ZJS |
1736 | a->mode_set == b->mode_set && |
1737 | a->mode == b->mode && | |
bfe95f35 | 1738 | |
3f93da98 ZJS |
1739 | a->age_set == b->age_set && |
1740 | a->age == b->age && | |
bfe95f35 | 1741 | |
3f93da98 | 1742 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1743 | |
3f93da98 | 1744 | a->keep_first_level == b->keep_first_level && |
468d726b | 1745 | |
3f93da98 | 1746 | a->major_minor == b->major_minor; |
468d726b | 1747 | |
bfe95f35 LP |
1748 | return true; |
1749 | } | |
1750 | ||
a2aced4a DR |
1751 | static bool should_include_path(const char *path) { |
1752 | char **prefix; | |
1753 | ||
abef3f91 | 1754 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
1755 | if (path_startswith(path, *prefix)) { |
1756 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
1757 | path, *prefix); | |
5c795114 | 1758 | return false; |
582deb84 | 1759 | } |
a2aced4a | 1760 | |
abef3f91 | 1761 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
1762 | if (path_startswith(path, *prefix)) { |
1763 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 1764 | return true; |
582deb84 | 1765 | } |
a2aced4a | 1766 | |
5c795114 DR |
1767 | /* no matches, so we should include this path only if we |
1768 | * have no whitelist at all */ | |
582deb84 ZJS |
1769 | if (strv_length(arg_include_prefixes) == 0) |
1770 | return true; | |
1771 | ||
1772 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
1773 | return false; | |
a2aced4a DR |
1774 | } |
1775 | ||
fba6e687 | 1776 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a | 1777 | |
cde684a2 | 1778 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1779 | _cleanup_(item_free_contents) Item i = {}; |
1780 | ItemArray *existing; | |
ef43a391 | 1781 | OrderedHashmap *h; |
657cf7f4 | 1782 | int r, pos; |
5f255144 | 1783 | bool force = false, boot = false; |
3b63d2d3 LP |
1784 | |
1785 | assert(fname); | |
1786 | assert(line >= 1); | |
1787 | assert(buffer); | |
1788 | ||
68685607 | 1789 | r = extract_many_words( |
4034a06d | 1790 | &buffer, |
68685607 | 1791 | NULL, |
12ba2c44 | 1792 | EXTRACT_QUOTES, |
4034a06d LP |
1793 | &action, |
1794 | &path, | |
1795 | &mode, | |
1796 | &user, | |
1797 | &group, | |
1798 | &age, | |
1799 | NULL); | |
657cf7f4 | 1800 | if (r < 0) |
1801 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); | |
1802 | else if (r < 2) { | |
3b63d2d3 | 1803 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1804 | return -EIO; |
5008d581 LP |
1805 | } |
1806 | ||
aa5f6817 | 1807 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
1808 | i.argument = strdup(buffer); |
1809 | if (!i.argument) | |
1810 | return log_oom(); | |
1811 | } | |
1812 | ||
2e78fa79 LP |
1813 | if (isempty(action)) { |
1814 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1815 | return -EINVAL; |
2e78fa79 LP |
1816 | } |
1817 | ||
5f255144 ZJS |
1818 | for (pos = 1; action[pos]; pos++) { |
1819 | if (action[pos] == '!' && !boot) | |
1820 | boot = true; | |
1821 | else if (action[pos] == '+' && !force) | |
1822 | force = true; | |
1823 | else { | |
1824 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1825 | fname, line, action); | |
1826 | return -EINVAL; | |
1827 | } | |
2e78fa79 LP |
1828 | } |
1829 | ||
582deb84 ZJS |
1830 | if (boot && !arg_boot) { |
1831 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
1832 | action, path); | |
c4708f13 | 1833 | return 0; |
582deb84 | 1834 | } |
c4708f13 | 1835 | |
3f93da98 ZJS |
1836 | i.type = action[0]; |
1837 | i.force = force; | |
2e78fa79 | 1838 | |
3f93da98 | 1839 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1840 | if (r < 0) { |
1841 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1842 | return r; | |
1843 | } | |
1844 | ||
3f93da98 | 1845 | switch (i.type) { |
468d726b | 1846 | |
777b87e7 | 1847 | case CREATE_DIRECTORY: |
d7b8eec7 | 1848 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1849 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1850 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
777b87e7 MS |
1851 | case TRUNCATE_DIRECTORY: |
1852 | case CREATE_FIFO: | |
1853 | case IGNORE_PATH: | |
78a92a5a | 1854 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1855 | case REMOVE_PATH: |
1856 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1857 | case ADJUST_MODE: |
777b87e7 MS |
1858 | case RELABEL_PATH: |
1859 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 1860 | if (i.argument) |
bd550f78 | 1861 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
1862 | |
1863 | break; | |
1864 | ||
1865 | case CREATE_FILE: | |
1866 | case TRUNCATE_FILE: | |
777b87e7 | 1867 | break; |
468d726b LP |
1868 | |
1869 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1870 | if (!i.argument) { |
1871 | i.argument = strappend("/usr/share/factory/", i.path); | |
1872 | if (!i.argument) | |
2f3b873a | 1873 | return log_oom(); |
468d726b LP |
1874 | } |
1875 | break; | |
1876 | ||
31ed59c5 | 1877 | case WRITE_FILE: |
3f93da98 | 1878 | if (!i.argument) { |
31ed59c5 | 1879 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1880 | return -EBADMSG; |
31ed59c5 LP |
1881 | } |
1882 | break; | |
1883 | ||
849958d1 | 1884 | case COPY_FILES: |
3f93da98 ZJS |
1885 | if (!i.argument) { |
1886 | i.argument = strappend("/usr/share/factory/", i.path); | |
1887 | if (!i.argument) | |
2f3b873a | 1888 | return log_oom(); |
3f93da98 | 1889 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1890 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1891 | return -EBADMSG; | |
1892 | } | |
1893 | ||
3f93da98 | 1894 | path_kill_slashes(i.argument); |
849958d1 LP |
1895 | break; |
1896 | ||
468d726b LP |
1897 | case CREATE_CHAR_DEVICE: |
1898 | case CREATE_BLOCK_DEVICE: { | |
1899 | unsigned major, minor; | |
1900 | ||
3f93da98 | 1901 | if (!i.argument) { |
468d726b | 1902 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1903 | return -EBADMSG; |
468d726b LP |
1904 | } |
1905 | ||
3f93da98 ZJS |
1906 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1907 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1908 | return -EBADMSG; |
468d726b LP |
1909 | } |
1910 | ||
3f93da98 | 1911 | i.major_minor = makedev(major, minor); |
468d726b LP |
1912 | break; |
1913 | } | |
1914 | ||
ebf4e801 | 1915 | case SET_XATTR: |
b705ab6a | 1916 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1917 | if (!i.argument) { |
ebf4e801 MW |
1918 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1919 | return -EBADMSG; | |
1920 | } | |
bd550f78 | 1921 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
1922 | if (r < 0) |
1923 | return r; | |
1924 | break; | |
1925 | ||
f8eeeaf9 | 1926 | case SET_ACL: |
b705ab6a | 1927 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1928 | if (!i.argument) { |
1929 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1930 | return -EBADMSG; | |
1931 | } | |
bd550f78 | 1932 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
1933 | if (r < 0) |
1934 | return r; | |
1935 | break; | |
1936 | ||
88ec4dfa LP |
1937 | case SET_ATTRIBUTE: |
1938 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 1939 | if (!i.argument) { |
88ec4dfa | 1940 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
1941 | return -EBADMSG; |
1942 | } | |
bd550f78 | 1943 | r = parse_attribute_from_arg(&i); |
22c3a6ca GB |
1944 | if (r < 0) |
1945 | return r; | |
1946 | break; | |
1947 | ||
777b87e7 | 1948 | default: |
582deb84 | 1949 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
7f2c1f4d | 1950 | return -EBADMSG; |
3b63d2d3 | 1951 | } |
468d726b | 1952 | |
3f93da98 ZJS |
1953 | if (!path_is_absolute(i.path)) { |
1954 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1955 | return -EBADMSG; |
3b63d2d3 LP |
1956 | } |
1957 | ||
3f93da98 | 1958 | path_kill_slashes(i.path); |
3b63d2d3 | 1959 | |
3f93da98 | 1960 | if (!should_include_path(i.path)) |
7f2c1f4d | 1961 | return 0; |
5008d581 | 1962 | |
cf9a4abd | 1963 | if (arg_root) { |
cde684a2 LP |
1964 | char *p; |
1965 | ||
1d13f648 | 1966 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
1967 | if (!p) |
1968 | return log_oom(); | |
1969 | ||
3f93da98 ZJS |
1970 | free(i.path); |
1971 | i.path = p; | |
cf9a4abd MM |
1972 | } |
1973 | ||
90937fe3 | 1974 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
1975 | const char *u = user; |
1976 | ||
3f93da98 | 1977 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 1978 | if (r < 0) { |
3b63d2d3 | 1979 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1980 | return r; |
3b63d2d3 LP |
1981 | } |
1982 | ||
3f93da98 | 1983 | i.uid_set = true; |
3b63d2d3 LP |
1984 | } |
1985 | ||
90937fe3 | 1986 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
1987 | const char *g = group; |
1988 | ||
3f93da98 | 1989 | r = get_group_creds(&g, &i.gid); |
4b67834e | 1990 | if (r < 0) { |
3b63d2d3 | 1991 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1992 | return r; |
3b63d2d3 LP |
1993 | } |
1994 | ||
3f93da98 | 1995 | i.gid_set = true; |
3b63d2d3 LP |
1996 | } |
1997 | ||
90937fe3 | 1998 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 1999 | const char *mm = mode; |
3b63d2d3 LP |
2000 | unsigned m; |
2001 | ||
abef3f91 | 2002 | if (*mm == '~') { |
3f93da98 | 2003 | i.mask_perms = true; |
abef3f91 LP |
2004 | mm++; |
2005 | } | |
2006 | ||
2ff7b0a5 | 2007 | if (parse_mode(mm, &m) < 0) { |
3b63d2d3 | 2008 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2009 | return -EBADMSG; |
3b63d2d3 LP |
2010 | } |
2011 | ||
3f93da98 ZJS |
2012 | i.mode = m; |
2013 | i.mode_set = true; | |
3b63d2d3 | 2014 | } else |
5fb13eb5 | 2015 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2016 | |
90937fe3 | 2017 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2018 | const char *a = age; |
2019 | ||
2020 | if (*a == '~') { | |
3f93da98 | 2021 | i.keep_first_level = true; |
24f3a374 LP |
2022 | a++; |
2023 | } | |
2024 | ||
3f93da98 | 2025 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 2026 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2027 | return -EBADMSG; |
3b63d2d3 LP |
2028 | } |
2029 | ||
3f93da98 | 2030 | i.age_set = true; |
3b63d2d3 LP |
2031 | } |
2032 | ||
3f93da98 | 2033 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2034 | |
ef43a391 | 2035 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2036 | if (existing) { |
3f93da98 ZJS |
2037 | unsigned n; |
2038 | ||
2039 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2040 | if (!item_compatible(existing->items + n, &i)) { |
505ef0e3 | 2041 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 2042 | fname, line, i.path); |
6487ada8 MP |
2043 | return 0; |
2044 | } | |
ebf4e801 MW |
2045 | } |
2046 | } else { | |
3f93da98 | 2047 | existing = new0(ItemArray, 1); |
ef43a391 | 2048 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2049 | if (r < 0) |
2050 | return log_oom(); | |
bfe95f35 LP |
2051 | } |
2052 | ||
3f93da98 ZJS |
2053 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2054 | return log_oom(); | |
5008d581 | 2055 | |
3f93da98 | 2056 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2057 | |
2058 | /* Sort item array, to enforce stable ordering of application */ | |
2059 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2060 | |
3f93da98 | 2061 | zero(i); |
7f2c1f4d | 2062 | return 0; |
5008d581 LP |
2063 | } |
2064 | ||
601185b4 | 2065 | static void help(void) { |
522d4a49 LP |
2066 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2067 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2068 | " -h --help Show this help\n" |
eb9da376 | 2069 | " --version Show package version\n" |
5c795114 DR |
2070 | " --create Create marked files/directories\n" |
2071 | " --clean Clean up marked directories\n" | |
2072 | " --remove Remove marked files/directories\n" | |
81815651 | 2073 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2074 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2075 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
cf9a4abd | 2076 | " --root=PATH Operate on an alternate filesystem root\n", |
3b63d2d3 | 2077 | program_invocation_short_name); |
3b63d2d3 LP |
2078 | } |
2079 | ||
2080 | static int parse_argv(int argc, char *argv[]) { | |
2081 | ||
2082 | enum { | |
eb9da376 | 2083 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
2084 | ARG_CREATE, |
2085 | ARG_CLEAN, | |
fba6e687 | 2086 | ARG_REMOVE, |
81815651 | 2087 | ARG_BOOT, |
5c795114 DR |
2088 | ARG_PREFIX, |
2089 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2090 | ARG_ROOT, |
3b63d2d3 LP |
2091 | }; |
2092 | ||
2093 | static const struct option options[] = { | |
5c795114 | 2094 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 2095 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
2096 | { "create", no_argument, NULL, ARG_CREATE }, |
2097 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2098 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2099 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2100 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2101 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2102 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 2103 | {} |
3b63d2d3 LP |
2104 | }; |
2105 | ||
0f474365 | 2106 | int c, r; |
3b63d2d3 LP |
2107 | |
2108 | assert(argc >= 0); | |
2109 | assert(argv); | |
2110 | ||
601185b4 | 2111 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2112 | |
2113 | switch (c) { | |
2114 | ||
2115 | case 'h': | |
601185b4 ZJS |
2116 | help(); |
2117 | return 0; | |
eb9da376 LP |
2118 | |
2119 | case ARG_VERSION: | |
3f6fd1ba | 2120 | return version(); |
3b63d2d3 LP |
2121 | |
2122 | case ARG_CREATE: | |
2123 | arg_create = true; | |
2124 | break; | |
2125 | ||
2126 | case ARG_CLEAN: | |
2127 | arg_clean = true; | |
2128 | break; | |
2129 | ||
2130 | case ARG_REMOVE: | |
2131 | arg_remove = true; | |
2132 | break; | |
2133 | ||
81815651 ZJS |
2134 | case ARG_BOOT: |
2135 | arg_boot = true; | |
c4708f13 ZJS |
2136 | break; |
2137 | ||
fba6e687 | 2138 | case ARG_PREFIX: |
7bc040fa | 2139 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2140 | return log_oom(); |
fba6e687 LP |
2141 | break; |
2142 | ||
5c795114 | 2143 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2144 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2145 | return log_oom(); |
2146 | break; | |
2147 | ||
cf9a4abd | 2148 | case ARG_ROOT: |
0f03c2a4 | 2149 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 2150 | if (r < 0) |
0f03c2a4 | 2151 | return r; |
cf9a4abd MM |
2152 | break; |
2153 | ||
3b63d2d3 LP |
2154 | case '?': |
2155 | return -EINVAL; | |
2156 | ||
2157 | default: | |
eb9da376 | 2158 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2159 | } |
3b63d2d3 LP |
2160 | |
2161 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 2162 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2163 | return -EINVAL; |
2164 | } | |
2165 | ||
2166 | return 1; | |
2167 | } | |
2168 | ||
fba6e687 | 2169 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
2170 | _cleanup_fclose_ FILE *f = NULL; |
2171 | char line[LINE_MAX]; | |
78a92a5a | 2172 | Iterator iterator; |
1731e34a | 2173 | unsigned v = 0; |
78a92a5a | 2174 | Item *i; |
1731e34a | 2175 | int r; |
fba6e687 LP |
2176 | |
2177 | assert(fn); | |
2178 | ||
cf9a4abd | 2179 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e | 2180 | if (r < 0) { |
582deb84 ZJS |
2181 | if (ignore_enoent && r == -ENOENT) { |
2182 | log_debug_errno(r, "Failed to open \"%s\": %m", fn); | |
fba6e687 | 2183 | return 0; |
582deb84 | 2184 | } |
fba6e687 | 2185 | |
8d3d7072 | 2186 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
fba6e687 | 2187 | } |
582deb84 | 2188 | log_debug("Reading config file \"%s\".", fn); |
fba6e687 | 2189 | |
1731e34a LP |
2190 | FOREACH_LINE(line, f, break) { |
2191 | char *l; | |
fba6e687 LP |
2192 | int k; |
2193 | ||
fba6e687 LP |
2194 | v++; |
2195 | ||
2196 | l = strstrip(line); | |
2197 | if (*l == '#' || *l == 0) | |
2198 | continue; | |
2199 | ||
1731e34a LP |
2200 | k = parse_line(fn, v, l); |
2201 | if (k < 0 && r == 0) | |
2202 | r = k; | |
fba6e687 LP |
2203 | } |
2204 | ||
78a92a5a | 2205 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2206 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2207 | Iterator iter; |
2208 | Item *j, *candidate_item = NULL; | |
2209 | ||
2210 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2211 | continue; | |
2212 | ||
ef43a391 | 2213 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2214 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2215 | continue; |
2216 | ||
2217 | if (path_equal(j->path, i->path)) { | |
2218 | candidate_item = j; | |
2219 | break; | |
2220 | } | |
2221 | ||
2222 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2223 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2224 | candidate_item = j; | |
2225 | } | |
2226 | ||
9ed2a35e | 2227 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2228 | i->age = candidate_item->age; |
2229 | i->age_set = true; | |
2230 | } | |
2231 | } | |
2232 | ||
fba6e687 | 2233 | if (ferror(f)) { |
56f64d95 | 2234 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2235 | if (r == 0) |
2236 | r = -EIO; | |
2237 | } | |
2238 | ||
fba6e687 LP |
2239 | return r; |
2240 | } | |
2241 | ||
5008d581 | 2242 | int main(int argc, char *argv[]) { |
fabe5c0e | 2243 | int r, k; |
3f93da98 | 2244 | ItemArray *a; |
3b63d2d3 LP |
2245 | Iterator iterator; |
2246 | ||
fdcad0c2 LP |
2247 | r = parse_argv(argc, argv); |
2248 | if (r <= 0) | |
753615e8 | 2249 | goto finish; |
5008d581 | 2250 | |
eb0ca9eb | 2251 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2252 | log_parse_environment(); |
2253 | log_open(); | |
2254 | ||
4c12626c LP |
2255 | umask(0022); |
2256 | ||
cc56fafe | 2257 | mac_selinux_init(NULL); |
5008d581 | 2258 | |
ef43a391 LP |
2259 | items = ordered_hashmap_new(&string_hash_ops); |
2260 | globs = ordered_hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
2261 | |
2262 | if (!items || !globs) { | |
fabe5c0e | 2263 | r = log_oom(); |
3b63d2d3 LP |
2264 | goto finish; |
2265 | } | |
2266 | ||
fabe5c0e | 2267 | r = 0; |
5008d581 | 2268 | |
fba6e687 LP |
2269 | if (optind < argc) { |
2270 | int j; | |
5008d581 | 2271 | |
9125670f | 2272 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
2273 | k = read_config_file(argv[j], false); |
2274 | if (k < 0 && r == 0) | |
2275 | r = k; | |
9125670f | 2276 | } |
5008d581 | 2277 | |
fba6e687 | 2278 | } else { |
fabe5c0e LP |
2279 | _cleanup_strv_free_ char **files = NULL; |
2280 | char **f; | |
5008d581 | 2281 | |
cf9a4abd | 2282 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 2283 | if (r < 0) { |
da927ba9 | 2284 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
2285 | goto finish; |
2286 | } | |
3b63d2d3 | 2287 | |
772f8371 | 2288 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
2289 | k = read_config_file(*f, true); |
2290 | if (k < 0 && r == 0) | |
2291 | r = k; | |
5008d581 | 2292 | } |
772f8371 | 2293 | } |
5008d581 | 2294 | |
17493fa5 LP |
2295 | /* The non-globbing ones usually create things, hence we apply |
2296 | * them first */ | |
ef43a391 | 2297 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 2298 | k = process_item_array(a); |
1db50423 ZJS |
2299 | if (k < 0 && r == 0) |
2300 | r = k; | |
2301 | } | |
b8bb3e8f | 2302 | |
17493fa5 LP |
2303 | /* The globbing ones usually alter things, hence we apply them |
2304 | * second. */ | |
ef43a391 | 2305 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 2306 | k = process_item_array(a); |
1db50423 ZJS |
2307 | if (k < 0 && r == 0) |
2308 | r = k; | |
2309 | } | |
3b63d2d3 | 2310 | |
5008d581 | 2311 | finish: |
ef43a391 | 2312 | while ((a = ordered_hashmap_steal_first(items))) |
3f93da98 | 2313 | item_array_free(a); |
3b63d2d3 | 2314 | |
ef43a391 | 2315 | while ((a = ordered_hashmap_steal_first(globs))) |
3f93da98 | 2316 | item_array_free(a); |
17b90525 | 2317 | |
ef43a391 LP |
2318 | ordered_hashmap_free(items); |
2319 | ordered_hashmap_free(globs); | |
5008d581 | 2320 | |
7bc040fa LP |
2321 | free(arg_include_prefixes); |
2322 | free(arg_exclude_prefixes); | |
cf9a4abd | 2323 | free(arg_root); |
a2aced4a | 2324 | |
17b90525 LP |
2325 | set_free_free(unix_sockets); |
2326 | ||
cc56fafe | 2327 | mac_selinux_finish(); |
29003cff | 2328 | |
fabe5c0e | 2329 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 2330 | } |