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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" | |
c8b3094d | 44 | #include "chattr-util.h" |
3f6fd1ba LP |
45 | #include "conf-files.h" |
46 | #include "copy.h" | |
4f5dd394 | 47 | #include "escape.h" |
3ffd4af2 | 48 | #include "fd-util.h" |
0d39fa9c | 49 | #include "fileio.h" |
3f6fd1ba | 50 | #include "formats-util.h" |
f4f15635 | 51 | #include "fs-util.h" |
c004493c | 52 | #include "io-util.h" |
3f6fd1ba | 53 | #include "label.h" |
5008d581 | 54 | #include "log.h" |
54693d9b | 55 | #include "macro.h" |
d39efe74 | 56 | #include "missing.h" |
49e942b2 | 57 | #include "mkdir.h" |
6bedfcbb | 58 | #include "parse-util.h" |
9eb977db | 59 | #include "path-util.h" |
c6878637 | 60 | #include "rm-rf.h" |
d7b8eec7 | 61 | #include "selinux-util.h" |
3f6fd1ba LP |
62 | #include "set.h" |
63 | #include "specifier.h" | |
8fcde012 | 64 | #include "stat-util.h" |
8b43440b | 65 | #include "string-table.h" |
07630cea | 66 | #include "string-util.h" |
3f6fd1ba | 67 | #include "strv.h" |
b1d4f8e1 | 68 | #include "user-util.h" |
3f6fd1ba | 69 | #include "util.h" |
5008d581 | 70 | |
01000479 | 71 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 72 | * them in the file system. This is intended to be used to create |
db019b8d KS |
73 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
74 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 75 | |
66ccd038 | 76 | typedef enum ItemType { |
b8bb3e8f | 77 | /* These ones take file names */ |
3b63d2d3 LP |
78 | CREATE_FILE = 'f', |
79 | TRUNCATE_FILE = 'F', | |
80 | CREATE_DIRECTORY = 'd', | |
81 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 82 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
83 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
84 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 85 | CREATE_FIFO = 'p', |
468d726b LP |
86 | CREATE_SYMLINK = 'L', |
87 | CREATE_CHAR_DEVICE = 'c', | |
88 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 89 | COPY_FILES = 'C', |
b8bb3e8f LP |
90 | |
91 | /* These ones take globs */ | |
17493fa5 | 92 | WRITE_FILE = 'w', |
b705ab6a ZJS |
93 | SET_XATTR = 't', |
94 | RECURSIVE_SET_XATTR = 'T', | |
95 | SET_ACL = 'a', | |
96 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
97 | SET_ATTRIBUTE = 'h', |
98 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 99 | IGNORE_PATH = 'x', |
78a92a5a | 100 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 101 | REMOVE_PATH = 'r', |
a8d88783 | 102 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 103 | RELABEL_PATH = 'z', |
e73a03e0 | 104 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 105 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 106 | } ItemType; |
3b63d2d3 LP |
107 | |
108 | typedef struct Item { | |
66ccd038 | 109 | ItemType type; |
3b63d2d3 LP |
110 | |
111 | char *path; | |
468d726b | 112 | char *argument; |
ebf4e801 | 113 | char **xattrs; |
f8eeeaf9 ZJS |
114 | #ifdef HAVE_ACL |
115 | acl_t acl_access; | |
116 | acl_t acl_default; | |
117 | #endif | |
5008d581 LP |
118 | uid_t uid; |
119 | gid_t gid; | |
3b63d2d3 LP |
120 | mode_t mode; |
121 | usec_t age; | |
122 | ||
468d726b | 123 | dev_t major_minor; |
88ec4dfa LP |
124 | unsigned attribute_value; |
125 | unsigned attribute_mask; | |
468d726b | 126 | |
3b63d2d3 LP |
127 | bool uid_set:1; |
128 | bool gid_set:1; | |
129 | bool mode_set:1; | |
130 | bool age_set:1; | |
abef3f91 | 131 | bool mask_perms:1; |
88ec4dfa | 132 | bool attribute_set:1; |
24f3a374 LP |
133 | |
134 | bool keep_first_level:1; | |
1910cd0e | 135 | |
2e78fa79 LP |
136 | bool force:1; |
137 | ||
1910cd0e | 138 | bool done:1; |
3b63d2d3 LP |
139 | } Item; |
140 | ||
3f93da98 ZJS |
141 | typedef struct ItemArray { |
142 | Item *items; | |
143 | size_t count; | |
144 | size_t size; | |
145 | } ItemArray; | |
146 | ||
3b63d2d3 LP |
147 | static bool arg_create = false; |
148 | static bool arg_clean = false; | |
149 | static bool arg_remove = false; | |
81815651 | 150 | static bool arg_boot = false; |
3b63d2d3 | 151 | |
7bc040fa LP |
152 | static char **arg_include_prefixes = NULL; |
153 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 154 | static char *arg_root = NULL; |
fba6e687 | 155 | |
7f0a55d4 | 156 | static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles"); |
9125670f | 157 | |
3b63d2d3 LP |
158 | #define MAX_DEPTH 256 |
159 | ||
ef43a391 | 160 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
161 | static Set *unix_sockets = NULL; |
162 | ||
bd550f78 LP |
163 | static const Specifier specifier_table[] = { |
164 | { 'm', specifier_machine_id, NULL }, | |
165 | { 'b', specifier_boot_id, NULL }, | |
166 | { 'H', specifier_host_name, NULL }, | |
167 | { 'v', specifier_kernel_release, NULL }, | |
168 | {} | |
169 | }; | |
170 | ||
66ccd038 | 171 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
172 | return IN_SET(t, |
173 | WRITE_FILE, | |
174 | IGNORE_PATH, | |
175 | IGNORE_DIRECTORY_PATH, | |
176 | REMOVE_PATH, | |
177 | RECURSIVE_REMOVE_PATH, | |
e73a03e0 | 178 | ADJUST_MODE, |
cde684a2 | 179 | RELABEL_PATH, |
b705ab6a ZJS |
180 | RECURSIVE_RELABEL_PATH, |
181 | SET_XATTR, | |
182 | RECURSIVE_SET_XATTR, | |
183 | SET_ACL, | |
34f64536 LP |
184 | RECURSIVE_SET_ACL, |
185 | SET_ATTRIBUTE, | |
186 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
187 | } |
188 | ||
3f93da98 ZJS |
189 | static bool takes_ownership(ItemType t) { |
190 | return IN_SET(t, | |
191 | CREATE_FILE, | |
192 | TRUNCATE_FILE, | |
193 | CREATE_DIRECTORY, | |
194 | TRUNCATE_DIRECTORY, | |
195 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
196 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
197 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
198 | CREATE_FIFO, |
199 | CREATE_SYMLINK, | |
200 | CREATE_CHAR_DEVICE, | |
201 | CREATE_BLOCK_DEVICE, | |
202 | COPY_FILES, | |
3f93da98 ZJS |
203 | WRITE_FILE, |
204 | IGNORE_PATH, | |
205 | IGNORE_DIRECTORY_PATH, | |
206 | REMOVE_PATH, | |
207 | RECURSIVE_REMOVE_PATH); | |
208 | } | |
209 | ||
ef43a391 | 210 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 211 | ItemArray *j; |
b8bb3e8f LP |
212 | Iterator i; |
213 | ||
ef43a391 | 214 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
215 | unsigned n; |
216 | ||
217 | for (n = 0; n < j->count; n++) { | |
218 | Item *item = j->items + n; | |
219 | ||
220 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
221 | return item; | |
222 | } | |
223 | } | |
b8bb3e8f LP |
224 | |
225 | return NULL; | |
226 | } | |
227 | ||
17b90525 | 228 | static void load_unix_sockets(void) { |
7fd1b19b | 229 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
230 | char line[LINE_MAX]; |
231 | ||
232 | if (unix_sockets) | |
233 | return; | |
234 | ||
235 | /* We maintain a cache of the sockets we found in | |
236 | * /proc/net/unix to speed things up a little. */ | |
237 | ||
d5099efc | 238 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 239 | if (!unix_sockets) |
17b90525 LP |
240 | return; |
241 | ||
fdcad0c2 LP |
242 | f = fopen("/proc/net/unix", "re"); |
243 | if (!f) | |
17b90525 LP |
244 | return; |
245 | ||
fdcad0c2 LP |
246 | /* Skip header */ |
247 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
248 | goto fail; |
249 | ||
250 | for (;;) { | |
251 | char *p, *s; | |
252 | int k; | |
253 | ||
fdcad0c2 | 254 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
255 | break; |
256 | ||
257 | truncate_nl(line); | |
258 | ||
fdcad0c2 LP |
259 | p = strchr(line, ':'); |
260 | if (!p) | |
261 | continue; | |
262 | ||
263 | if (strlen(p) < 37) | |
17b90525 LP |
264 | continue; |
265 | ||
fdcad0c2 | 266 | p += 37; |
17b90525 | 267 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 268 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
269 | p += strspn(p, WHITESPACE); |
270 | ||
271 | if (*p != '/') | |
272 | continue; | |
273 | ||
fdcad0c2 LP |
274 | s = strdup(p); |
275 | if (!s) | |
17b90525 LP |
276 | goto fail; |
277 | ||
4ff21d85 LP |
278 | path_kill_slashes(s); |
279 | ||
ef42202a ZJS |
280 | k = set_consume(unix_sockets, s); |
281 | if (k < 0 && k != -EEXIST) | |
282 | goto fail; | |
17b90525 LP |
283 | } |
284 | ||
285 | return; | |
286 | ||
287 | fail: | |
288 | set_free_free(unix_sockets); | |
289 | unix_sockets = NULL; | |
17b90525 LP |
290 | } |
291 | ||
292 | static bool unix_socket_alive(const char *fn) { | |
293 | assert(fn); | |
294 | ||
295 | load_unix_sockets(); | |
296 | ||
297 | if (unix_sockets) | |
298 | return !!set_get(unix_sockets, (char*) fn); | |
299 | ||
300 | /* We don't know, so assume yes */ | |
301 | return true; | |
302 | } | |
303 | ||
99d680ac | 304 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 305 | |
2695c5c4 | 306 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
307 | int mount_id_parent, mount_id; |
308 | int r_p, r; | |
309 | ||
370c860f | 310 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
311 | if (r_p < 0) |
312 | r_p = -errno; | |
313 | ||
370c860f DR |
314 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
315 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
316 | if (r < 0) |
317 | r = -errno; | |
318 | ||
319 | /* got no handle; make no assumptions, return error */ | |
320 | if (r_p < 0 && r < 0) | |
321 | return r_p; | |
322 | ||
323 | /* got both handles; if they differ, it is a mount point */ | |
324 | if (r_p >= 0 && r >= 0) | |
325 | return mount_id_parent != mount_id; | |
326 | ||
327 | /* got only one handle; assume different mount points if one | |
328 | * of both queries was not supported by the filesystem */ | |
e7aab541 | 329 | if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
99d680ac KS |
330 | return true; |
331 | ||
332 | /* return error */ | |
333 | if (r_p < 0) | |
334 | return r_p; | |
335 | return r; | |
336 | } | |
337 | ||
df99a9ef ZJS |
338 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
339 | DIR *dir; | |
340 | ||
341 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
342 | if (dir) |
343 | return dir; | |
344 | ||
345 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
346 | if (errno != EPERM) | |
347 | return NULL; | |
348 | ||
349 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
350 | if (!dir) | |
351 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
352 | |
353 | return dir; | |
354 | } | |
355 | ||
356 | static DIR* opendir_nomod(const char *path) { | |
357 | return xopendirat_nomod(AT_FDCWD, path); | |
358 | } | |
359 | ||
3b63d2d3 | 360 | static int dir_cleanup( |
78a92a5a | 361 | Item *i, |
3b63d2d3 LP |
362 | const char *p, |
363 | DIR *d, | |
364 | const struct stat *ds, | |
365 | usec_t cutoff, | |
366 | dev_t rootdev, | |
367 | bool mountpoint, | |
24f3a374 | 368 | int maxdepth, |
265ffa1e LP |
369 | bool keep_this_level) { |
370 | ||
3b63d2d3 LP |
371 | struct dirent *dent; |
372 | struct timespec times[2]; | |
373 | bool deleted = false; | |
3b63d2d3 LP |
374 | int r = 0; |
375 | ||
376 | while ((dent = readdir(d))) { | |
377 | struct stat s; | |
378 | usec_t age; | |
7fd1b19b | 379 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 380 | |
7fcb4b9b | 381 | if (STR_IN_SET(dent->d_name, ".", "..")) |
3b63d2d3 | 382 | continue; |
5008d581 | 383 | |
3b63d2d3 | 384 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
385 | if (errno == ENOENT) |
386 | continue; | |
5008d581 | 387 | |
ca2f4176 KS |
388 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
389 | if (errno == EACCES) | |
56f64d95 | 390 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 391 | else |
56f64d95 | 392 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 393 | r = -errno; |
3b63d2d3 LP |
394 | continue; |
395 | } | |
396 | ||
397 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
398 | if (s.st_dev != rootdev) { |
399 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 400 | continue; |
582deb84 | 401 | } |
3b63d2d3 | 402 | |
99d680ac KS |
403 | /* Try to detect bind mounts of the same filesystem instance; they |
404 | * do not differ in device major/minors. This type of query is not | |
405 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
406 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
407 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
408 | p, dent->d_name); | |
99d680ac | 409 | continue; |
582deb84 | 410 | } |
99d680ac | 411 | |
3b63d2d3 | 412 | /* Do not delete read-only files owned by root */ |
582deb84 ZJS |
413 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
414 | log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); | |
3b63d2d3 | 415 | continue; |
582deb84 | 416 | } |
3b63d2d3 | 417 | |
cde684a2 LP |
418 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
419 | if (!sub_path) { | |
0d0f0c50 | 420 | r = log_oom(); |
3b63d2d3 LP |
421 | goto finish; |
422 | } | |
423 | ||
424 | /* Is there an item configured for this path? */ | |
ef43a391 | 425 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 426 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 427 | continue; |
582deb84 | 428 | } |
3b63d2d3 | 429 | |
582deb84 ZJS |
430 | if (find_glob(globs, sub_path)) { |
431 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 432 | continue; |
582deb84 | 433 | } |
b8bb3e8f | 434 | |
3b63d2d3 LP |
435 | if (S_ISDIR(s.st_mode)) { |
436 | ||
437 | if (mountpoint && | |
438 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
439 | s.st_uid == 0) { |
440 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 441 | continue; |
582deb84 | 442 | } |
3b63d2d3 LP |
443 | |
444 | if (maxdepth <= 0) | |
582deb84 | 445 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 446 | else { |
7fd1b19b | 447 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
448 | int q; |
449 | ||
df99a9ef | 450 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 451 | if (!sub_dir) { |
582deb84 ZJS |
452 | if (errno != ENOENT) |
453 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
454 | |
455 | continue; | |
456 | } | |
457 | ||
78a92a5a | 458 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
459 | if (q < 0) |
460 | r = q; | |
461 | } | |
462 | ||
24f3a374 LP |
463 | /* Note: if you are wondering why we don't |
464 | * support the sticky bit for excluding | |
465 | * directories from cleaning like we do it for | |
466 | * other file system objects: well, the sticky | |
467 | * bit already has a meaning for directories, | |
468 | * so we don't want to overload that. */ | |
469 | ||
582deb84 ZJS |
470 | if (keep_this_level) { |
471 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 472 | continue; |
582deb84 | 473 | } |
24f3a374 | 474 | |
3b63d2d3 | 475 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
476 | age = timespec_load(&s.st_mtim); |
477 | if (age >= cutoff) { | |
478 | char a[FORMAT_TIMESTAMP_MAX]; | |
479 | /* Follows spelling in stat(1). */ | |
480 | log_debug("Directory \"%s\": modify time %s is too new.", | |
481 | sub_path, | |
482 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 483 | continue; |
582deb84 ZJS |
484 | } |
485 | ||
486 | age = timespec_load(&s.st_atim); | |
487 | if (age >= cutoff) { | |
488 | char a[FORMAT_TIMESTAMP_MAX]; | |
489 | log_debug("Directory \"%s\": access time %s is too new.", | |
490 | sub_path, | |
491 | format_timestamp_us(a, sizeof(a), age)); | |
492 | continue; | |
493 | } | |
3b63d2d3 | 494 | |
61253220 ZJS |
495 | log_debug("Removing directory \"%s\".", sub_path); |
496 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
497 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
498 | log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
499 | r = -errno; | |
3b63d2d3 | 500 | } |
3b63d2d3 LP |
501 | |
502 | } else { | |
9c73736d LP |
503 | /* Skip files for which the sticky bit is |
504 | * set. These are semantics we define, and are | |
505 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
506 | * specification for details. */ | |
582deb84 ZJS |
507 | if (s.st_mode & S_ISVTX) { |
508 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 509 | continue; |
582deb84 | 510 | } |
9c73736d | 511 | |
582deb84 | 512 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
513 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
514 | ".journal", | |
515 | "aquota.user", | |
516 | "aquota.group")) { | |
582deb84 | 517 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 518 | continue; |
582deb84 | 519 | } |
3b63d2d3 | 520 | |
17b90525 | 521 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
522 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
523 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 524 | continue; |
582deb84 | 525 | } |
17b90525 | 526 | |
78ab08eb | 527 | /* Ignore device nodes */ |
582deb84 ZJS |
528 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
529 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 530 | continue; |
582deb84 | 531 | } |
78ab08eb | 532 | |
24f3a374 LP |
533 | /* Keep files on this level around if this is |
534 | * requested */ | |
582deb84 ZJS |
535 | if (keep_this_level) { |
536 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 537 | continue; |
582deb84 | 538 | } |
24f3a374 | 539 | |
582deb84 ZJS |
540 | age = timespec_load(&s.st_mtim); |
541 | if (age >= cutoff) { | |
542 | char a[FORMAT_TIMESTAMP_MAX]; | |
543 | /* Follows spelling in stat(1). */ | |
544 | log_debug("File \"%s\": modify time %s is too new.", | |
545 | sub_path, | |
546 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 547 | continue; |
582deb84 | 548 | } |
3b63d2d3 | 549 | |
582deb84 ZJS |
550 | age = timespec_load(&s.st_atim); |
551 | if (age >= cutoff) { | |
552 | char a[FORMAT_TIMESTAMP_MAX]; | |
553 | log_debug("File \"%s\": access time %s is too new.", | |
554 | sub_path, | |
555 | format_timestamp_us(a, sizeof(a), age)); | |
556 | continue; | |
557 | } | |
3b63d2d3 | 558 | |
582deb84 ZJS |
559 | age = timespec_load(&s.st_ctim); |
560 | if (age >= cutoff) { | |
561 | char a[FORMAT_TIMESTAMP_MAX]; | |
562 | log_debug("File \"%s\": change time %s is too new.", | |
563 | sub_path, | |
564 | format_timestamp_us(a, sizeof(a), age)); | |
565 | continue; | |
3b63d2d3 LP |
566 | } |
567 | ||
582deb84 ZJS |
568 | log_debug("unlink \"%s\"", sub_path); |
569 | ||
570 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
571 | if (errno != ENOENT) | |
572 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
573 | ||
3b63d2d3 LP |
574 | deleted = true; |
575 | } | |
576 | } | |
577 | ||
578 | finish: | |
579 | if (deleted) { | |
582deb84 ZJS |
580 | usec_t age1, age2; |
581 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
582 | ||
3b63d2d3 LP |
583 | /* Restore original directory timestamps */ |
584 | times[0] = ds->st_atim; | |
585 | times[1] = ds->st_mtim; | |
586 | ||
582deb84 ZJS |
587 | age1 = timespec_load(&ds->st_atim); |
588 | age2 = timespec_load(&ds->st_mtim); | |
589 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
590 | p, | |
591 | format_timestamp_us(a, sizeof(a), age1), | |
592 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 593 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 594 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
595 | } |
596 | ||
3b63d2d3 LP |
597 | return r; |
598 | } | |
599 | ||
b705ab6a | 600 | static int path_set_perms(Item *i, const char *path) { |
48b8aaa8 | 601 | _cleanup_close_ int fd = -1; |
1924a97d | 602 | struct stat st; |
1924a97d | 603 | |
cde684a2 LP |
604 | assert(i); |
605 | assert(path); | |
606 | ||
48b8aaa8 LP |
607 | /* We open the file with O_PATH here, to make the operation |
608 | * somewhat atomic. Also there's unfortunately no fchmodat() | |
609 | * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via | |
610 | * O_PATH. */ | |
611 | ||
612 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); | |
613 | if (fd < 0) | |
614 | return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); | |
615 | ||
616 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
617 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1924a97d | 618 | |
48b8aaa8 LP |
619 | if (S_ISLNK(st.st_mode)) |
620 | log_debug("Skipping mode an owner fix for symlink %s.", path); | |
621 | else { | |
622 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; | |
623 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
abef3f91 | 624 | |
48b8aaa8 LP |
625 | /* not using i->path directly because it may be a glob */ |
626 | if (i->mode_set) { | |
627 | mode_t m = i->mode; | |
628 | ||
629 | if (i->mask_perms) { | |
630 | if (!(st.st_mode & 0111)) | |
631 | m &= ~0111; | |
632 | if (!(st.st_mode & 0222)) | |
7d6884b6 | 633 | m &= ~0222; |
48b8aaa8 LP |
634 | if (!(st.st_mode & 0444)) |
635 | m &= ~0444; | |
636 | if (!S_ISDIR(st.st_mode)) | |
637 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
638 | } | |
abef3f91 | 639 | |
48b8aaa8 LP |
640 | if (m == (st.st_mode & 07777)) |
641 | log_debug("\"%s\" has right mode %o", path, st.st_mode); | |
642 | else { | |
643 | log_debug("chmod \"%s\" to mode %o", path, m); | |
644 | if (chmod(fn, m) < 0) | |
645 | return log_error_errno(errno, "chmod(%s) failed: %m", path); | |
646 | } | |
062e01bb | 647 | } |
062e01bb | 648 | |
48b8aaa8 LP |
649 | if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
650 | (i->uid_set || i->gid_set)) { | |
651 | log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, | |
652 | path, | |
653 | i->uid_set ? i->uid : UID_INVALID, | |
654 | i->gid_set ? i->gid : GID_INVALID); | |
655 | if (chown(fn, | |
656 | i->uid_set ? i->uid : UID_INVALID, | |
657 | i->gid_set ? i->gid : GID_INVALID) < 0) | |
7d6884b6 | 658 | return log_error_errno(errno, "chown(%s) failed: %m", path); |
48b8aaa8 | 659 | } |
582deb84 | 660 | } |
062e01bb | 661 | |
48b8aaa8 LP |
662 | fd = safe_close(fd); |
663 | ||
9855d6c7 | 664 | return label_fix(path, false, false); |
062e01bb MS |
665 | } |
666 | ||
bd550f78 | 667 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
668 | const char *p; |
669 | int r; | |
670 | ||
671 | assert(i); | |
505ef0e3 | 672 | assert(i->argument); |
ebf4e801 | 673 | |
ebf4e801 MW |
674 | p = i->argument; |
675 | ||
4034a06d | 676 | for (;;) { |
bd550f78 | 677 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
4034a06d | 678 | |
12ba2c44 | 679 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 680 | if (r < 0) |
bd550f78 | 681 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
682 | if (r <= 0) |
683 | break; | |
505ef0e3 | 684 | |
bd550f78 LP |
685 | r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
686 | if (r < 0) | |
687 | return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); | |
688 | ||
689 | r = split_pair(xattr_replaced, "=", &name, &value); | |
ebf4e801 | 690 | if (r < 0) { |
4034a06d | 691 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
692 | continue; |
693 | } | |
505ef0e3 | 694 | |
4034a06d | 695 | if (isempty(name) || isempty(value)) { |
bd550f78 | 696 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
697 | continue; |
698 | } | |
505ef0e3 | 699 | |
4034a06d | 700 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 701 | return log_oom(); |
505ef0e3 | 702 | |
4034a06d | 703 | name = value = NULL; |
ebf4e801 MW |
704 | } |
705 | ||
4034a06d | 706 | return 0; |
ebf4e801 MW |
707 | } |
708 | ||
b705ab6a | 709 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
710 | char **name, **value; |
711 | ||
712 | assert(i); | |
713 | assert(path); | |
714 | ||
ebf4e801 MW |
715 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
716 | int n; | |
505ef0e3 | 717 | |
ebf4e801 | 718 | n = strlen(*value); |
bd550f78 | 719 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
ebf4e801 | 720 | if (lsetxattr(path, *name, *value, n, 0) < 0) { |
bd550f78 | 721 | log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path); |
ebf4e801 MW |
722 | return -errno; |
723 | } | |
724 | } | |
725 | return 0; | |
726 | } | |
727 | ||
bd550f78 | 728 | static int parse_acls_from_arg(Item *item) { |
f8eeeaf9 ZJS |
729 | #ifdef HAVE_ACL |
730 | int r; | |
f8eeeaf9 ZJS |
731 | |
732 | assert(item); | |
733 | ||
50d9e46d ZJS |
734 | /* If force (= modify) is set, we will not modify the acl |
735 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 736 | |
50d9e46d | 737 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 738 | if (r < 0) |
4034a06d | 739 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
740 | #else |
741 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
742 | #endif | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
35888b67 | 747 | #ifdef HAVE_ACL |
48b8aaa8 LP |
748 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
749 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 750 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
751 | int r; |
752 | ||
d873e877 HPD |
753 | /* Returns 0 for success, positive error if already warned, |
754 | * negative error otherwise. */ | |
755 | ||
50d9e46d | 756 | if (modify) { |
dd4105b0 | 757 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
758 | if (r < 0) |
759 | return r; | |
50d9e46d | 760 | |
dd4105b0 ZJS |
761 | r = calc_acl_mask_if_needed(&dup); |
762 | if (r < 0) | |
763 | return r; | |
764 | } else { | |
765 | dup = acl_dup(acl); | |
766 | if (!dup) | |
767 | return -errno; | |
768 | ||
769 | /* the mask was already added earlier if needed */ | |
770 | } | |
771 | ||
772 | r = add_base_acls_if_needed(&dup, path); | |
773 | if (r < 0) | |
774 | return r; | |
775 | ||
582deb84 | 776 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 777 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 778 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 779 | strna(t), pretty); |
50d9e46d | 780 | |
582deb84 ZJS |
781 | r = acl_set_file(path, type, dup); |
782 | if (r < 0) | |
3ea40b78 LP |
783 | /* Return positive to indicate we already warned */ |
784 | return -log_error_errno(errno, | |
785 | "Setting %s ACL \"%s\" on %s failed: %m", | |
786 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 787 | strna(t), pretty); |
d873e877 | 788 | |
582deb84 | 789 | return 0; |
50d9e46d | 790 | } |
35888b67 | 791 | #endif |
50d9e46d | 792 | |
b705ab6a | 793 | static int path_set_acls(Item *item, const char *path) { |
d873e877 | 794 | int r = 0; |
f8eeeaf9 | 795 | #ifdef HAVE_ACL |
48b8aaa8 LP |
796 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
797 | _cleanup_close_ int fd = -1; | |
798 | struct stat st; | |
799 | ||
f8eeeaf9 ZJS |
800 | assert(item); |
801 | assert(path); | |
802 | ||
48b8aaa8 LP |
803 | fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME); |
804 | if (fd < 0) | |
805 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
806 | ||
807 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
808 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
809 | ||
810 | if (S_ISLNK(st.st_mode)) { | |
811 | log_debug("Skipping ACL fix for symlink %s.", path); | |
812 | return 0; | |
813 | } | |
814 | ||
815 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
816 | ||
d873e877 | 817 | if (item->acl_access) |
48b8aaa8 | 818 | r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 819 | |
d873e877 | 820 | if (r == 0 && item->acl_default) |
48b8aaa8 | 821 | r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 822 | |
d873e877 HPD |
823 | if (r > 0) |
824 | return -r; /* already warned */ | |
15411c0c | 825 | else if (r == -EOPNOTSUPP) { |
d873e877 HPD |
826 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
827 | return 0; | |
828 | } else if (r < 0) | |
829 | log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
830 | #endif | |
831 | return r; | |
f8eeeaf9 ZJS |
832 | } |
833 | ||
88ec4dfa LP |
834 | #define ATTRIBUTES_ALL \ |
835 | (FS_NOATIME_FL | \ | |
836 | FS_SYNC_FL | \ | |
837 | FS_DIRSYNC_FL | \ | |
838 | FS_APPEND_FL | \ | |
839 | FS_COMPR_FL | \ | |
840 | FS_NODUMP_FL | \ | |
841 | FS_EXTENT_FL | \ | |
842 | FS_IMMUTABLE_FL | \ | |
843 | FS_JOURNAL_DATA_FL | \ | |
844 | FS_SECRM_FL | \ | |
845 | FS_UNRM_FL | \ | |
846 | FS_NOTAIL_FL | \ | |
847 | FS_TOPDIR_FL | \ | |
848 | FS_NOCOW_FL) | |
849 | ||
bd550f78 | 850 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
851 | |
852 | static const struct { | |
853 | char character; | |
854 | unsigned value; | |
855 | } attributes[] = { | |
856 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
857 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
858 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
859 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
860 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
861 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
862 | { 'e', FS_EXTENT_FL }, /* Top of directory hierarchies*/ | |
863 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ | |
864 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
865 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
866 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
867 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
868 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ | |
869 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ | |
22c3a6ca | 870 | }; |
88ec4dfa | 871 | |
22c3a6ca GB |
872 | enum { |
873 | MODE_ADD, | |
874 | MODE_DEL, | |
875 | MODE_SET | |
876 | } mode = MODE_ADD; | |
22c3a6ca | 877 | |
88ec4dfa LP |
878 | unsigned value = 0, mask = 0; |
879 | const char *p; | |
22c3a6ca | 880 | |
88ec4dfa LP |
881 | assert(item); |
882 | ||
883 | p = item->argument; | |
884 | if (p) { | |
885 | if (*p == '+') { | |
886 | mode = MODE_ADD; | |
887 | p++; | |
888 | } else if (*p == '-') { | |
889 | mode = MODE_DEL; | |
890 | p++; | |
891 | } else if (*p == '=') { | |
892 | mode = MODE_SET; | |
893 | p++; | |
894 | } | |
22c3a6ca GB |
895 | } |
896 | ||
88ec4dfa LP |
897 | if (isempty(p) && mode != MODE_SET) { |
898 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
899 | return -EINVAL; |
900 | } | |
88ec4dfa LP |
901 | |
902 | for (; p && *p ; p++) { | |
903 | unsigned i, v; | |
904 | ||
905 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
906 | if (*p == attributes[i].character) | |
907 | break; | |
908 | ||
909 | if (i >= ELEMENTSOF(attributes)) { | |
910 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
911 | return -EINVAL; |
912 | } | |
88ec4dfa LP |
913 | |
914 | v = attributes[i].value; | |
915 | ||
22c3a6ca | 916 | if (mode == MODE_ADD || mode == MODE_SET) |
88ec4dfa | 917 | value |= v; |
22c3a6ca | 918 | else |
88ec4dfa LP |
919 | value &= ~v; |
920 | ||
921 | mask |= v; | |
22c3a6ca GB |
922 | } |
923 | ||
924 | if (mode == MODE_SET) | |
88ec4dfa | 925 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 926 | |
88ec4dfa | 927 | assert(mask != 0); |
22c3a6ca | 928 | |
88ec4dfa LP |
929 | item->attribute_mask = mask; |
930 | item->attribute_value = value; | |
931 | item->attribute_set = true; | |
22c3a6ca GB |
932 | |
933 | return 0; | |
22c3a6ca GB |
934 | } |
935 | ||
88ec4dfa | 936 | static int path_set_attribute(Item *item, const char *path) { |
22c3a6ca | 937 | _cleanup_close_ int fd = -1; |
22c3a6ca | 938 | struct stat st; |
88ec4dfa LP |
939 | unsigned f; |
940 | int r; | |
22c3a6ca | 941 | |
88ec4dfa | 942 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 943 | return 0; |
22c3a6ca | 944 | |
48b8aaa8 LP |
945 | fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
946 | if (fd < 0) { | |
947 | if (errno == ELOOP) | |
948 | return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); | |
949 | ||
88ec4dfa | 950 | return log_error_errno(errno, "Cannot open '%s': %m", path); |
48b8aaa8 | 951 | } |
22c3a6ca | 952 | |
88ec4dfa LP |
953 | if (fstat(fd, &st) < 0) |
954 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
955 | ||
956 | /* Issuing the file attribute ioctls on device nodes is not | |
957 | * safe, as that will be delivered to the drivers, not the | |
958 | * file system containing the device node. */ | |
959 | if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { | |
960 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); | |
961 | return -EINVAL; | |
962 | } | |
963 | ||
964 | f = item->attribute_value & item->attribute_mask; | |
965 | ||
966 | /* Mask away directory-specific flags */ | |
22c3a6ca GB |
967 | if (!S_ISDIR(st.st_mode)) |
968 | f &= ~FS_DIRSYNC_FL; | |
88ec4dfa LP |
969 | |
970 | r = chattr_fd(fd, f, item->attribute_mask); | |
22c3a6ca | 971 | if (r < 0) |
ad75a97f LP |
972 | log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING, |
973 | r, | |
974 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
975 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
976 | |
977 | return 0; | |
978 | } | |
979 | ||
d4e9eb91 | 980 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
981 | _cleanup_close_ int fd = -1; |
982 | int flags, r = 0; | |
d4e9eb91 | 983 | struct stat st; |
d4e9eb91 | 984 | |
874f1947 LP |
985 | assert(i); |
986 | assert(path); | |
987 | ||
43ad6e31 LP |
988 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
989 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 990 | |
43ad6e31 | 991 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 992 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 993 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 994 | mac_selinux_create_file_clear(); |
5c0d398d | 995 | } |
d4e9eb91 DR |
996 | |
997 | if (fd < 0) { | |
582deb84 ZJS |
998 | if (i->type == WRITE_FILE && errno == ENOENT) { |
999 | log_debug_errno(errno, "Not writing \"%s\": %m", path); | |
d4e9eb91 | 1000 | return 0; |
582deb84 | 1001 | } |
d4e9eb91 | 1002 | |
f44b28fd MO |
1003 | r = -errno; |
1004 | if (!i->argument && errno == EROFS && stat(path, &st) == 0 && | |
1005 | (i->type == CREATE_FILE || st.st_size == 0)) | |
1006 | goto check_mode; | |
1007 | ||
1008 | return log_error_errno(r, "Failed to create file %s: %m", path); | |
d4e9eb91 DR |
1009 | } |
1010 | ||
1011 | if (i->argument) { | |
bd550f78 | 1012 | _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
582deb84 | 1013 | |
4034a06d | 1014 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 1015 | |
527b7a42 LP |
1016 | r = cunescape(i->argument, 0, &unescaped); |
1017 | if (r < 0) | |
1018 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
d4e9eb91 | 1019 | |
bd550f78 LP |
1020 | r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
1021 | if (r < 0) | |
1022 | return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); | |
1023 | ||
1024 | r = loop_write(fd, replaced, strlen(replaced), false); | |
582deb84 ZJS |
1025 | if (r < 0) |
1026 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1027 | } else | |
1028 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1029 | |
43ad6e31 | 1030 | fd = safe_close(fd); |
3612fbc1 | 1031 | |
4a62c710 MS |
1032 | if (stat(path, &st) < 0) |
1033 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 | 1034 | |
f44b28fd | 1035 | check_mode: |
d4e9eb91 DR |
1036 | if (!S_ISREG(st.st_mode)) { |
1037 | log_error("%s is not a file.", path); | |
1038 | return -EEXIST; | |
1039 | } | |
1040 | ||
b705ab6a | 1041 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1042 | if (r < 0) |
1043 | return r; | |
1044 | ||
1045 | return 0; | |
1046 | } | |
1047 | ||
081043cf ZJS |
1048 | typedef int (*action_t)(Item *, const char *); |
1049 | ||
1050 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 1051 | _cleanup_closedir_ DIR *d; |
e73a03e0 LP |
1052 | int r = 0; |
1053 | ||
1054 | assert(i); | |
1055 | assert(path); | |
a8d88783 MS |
1056 | |
1057 | /* This returns the first error we run into, but nevertheless | |
1058 | * tries to go on */ | |
1059 | ||
df99a9ef ZJS |
1060 | d = opendir_nomod(path); |
1061 | if (!d) | |
e73a03e0 | 1062 | return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
a8d88783 MS |
1063 | |
1064 | for (;;) { | |
e73a03e0 | 1065 | _cleanup_free_ char *p = NULL; |
7d5e9c0f | 1066 | struct dirent *de; |
e73a03e0 | 1067 | int q; |
a8d88783 | 1068 | |
d78096b3 FW |
1069 | errno = 0; |
1070 | de = readdir(d); | |
e73a03e0 LP |
1071 | if (!de) { |
1072 | if (errno != 0 && r == 0) | |
1073 | r = -errno; | |
a8d88783 | 1074 | |
a8d88783 | 1075 | break; |
e73a03e0 | 1076 | } |
a8d88783 | 1077 | |
7fcb4b9b | 1078 | if (STR_IN_SET(de->d_name, ".", "..")) |
a8d88783 MS |
1079 | continue; |
1080 | ||
e73a03e0 LP |
1081 | p = strjoin(path, "/", de->d_name, NULL); |
1082 | if (!p) | |
1083 | return -ENOMEM; | |
a8d88783 | 1084 | |
081043cf | 1085 | q = action(i, p); |
e73a03e0 LP |
1086 | if (q < 0 && q != -ENOENT && r == 0) |
1087 | r = q; | |
a8d88783 | 1088 | |
e73a03e0 | 1089 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 1090 | q = item_do_children(i, p, action); |
e73a03e0 LP |
1091 | if (q < 0 && r == 0) |
1092 | r = q; | |
a8d88783 | 1093 | } |
a8d88783 MS |
1094 | } |
1095 | ||
e73a03e0 | 1096 | return r; |
a8d88783 MS |
1097 | } |
1098 | ||
081043cf | 1099 | static int glob_item(Item *i, action_t action, bool recursive) { |
df99a9ef | 1100 | _cleanup_globfree_ glob_t g = { |
ebf31a1f ZJS |
1101 | .gl_closedir = (void (*)(void *)) closedir, |
1102 | .gl_readdir = (struct dirent *(*)(void *)) readdir, | |
1103 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
df99a9ef ZJS |
1104 | .gl_lstat = lstat, |
1105 | .gl_stat = stat, | |
1106 | }; | |
e73a03e0 | 1107 | int r = 0, k; |
99e68c0b MS |
1108 | char **fn; |
1109 | ||
99e68c0b | 1110 | errno = 0; |
df99a9ef | 1111 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); |
081043cf ZJS |
1112 | if (k != 0 && k != GLOB_NOMATCH) |
1113 | return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1114 | |
c84a9488 ZJS |
1115 | STRV_FOREACH(fn, g.gl_pathv) { |
1116 | k = action(i, *fn); | |
e73a03e0 | 1117 | if (k < 0 && r == 0) |
99e68c0b | 1118 | r = k; |
081043cf ZJS |
1119 | |
1120 | if (recursive) { | |
1121 | k = item_do_children(i, *fn, action); | |
1122 | if (k < 0 && r == 0) | |
1123 | r = k; | |
1124 | } | |
c84a9488 | 1125 | } |
99e68c0b | 1126 | |
99e68c0b MS |
1127 | return r; |
1128 | } | |
1129 | ||
294929f8 ZJS |
1130 | typedef enum { |
1131 | CREATION_NORMAL, | |
1132 | CREATION_EXISTING, | |
1133 | CREATION_FORCE, | |
7a7d5db7 LP |
1134 | _CREATION_MODE_MAX, |
1135 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1136 | } CreationMode; |
1137 | ||
7a7d5db7 LP |
1138 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1139 | [CREATION_NORMAL] = "Created", | |
1140 | [CREATION_EXISTING] = "Found existing", | |
1141 | [CREATION_FORCE] = "Created replacement", | |
1142 | }; | |
1143 | ||
1144 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1145 | |
3b63d2d3 | 1146 | static int create_item(Item *i) { |
75c2a9fd | 1147 | _cleanup_free_ char *resolved = NULL; |
3b63d2d3 | 1148 | struct stat st; |
df28bc08 | 1149 | int r = 0; |
294929f8 | 1150 | CreationMode creation; |
5008d581 | 1151 | |
3b63d2d3 | 1152 | assert(i); |
5008d581 | 1153 | |
582deb84 ZJS |
1154 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1155 | ||
3b63d2d3 LP |
1156 | switch (i->type) { |
1157 | ||
1158 | case IGNORE_PATH: | |
78a92a5a | 1159 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1160 | case REMOVE_PATH: |
1161 | case RECURSIVE_REMOVE_PATH: | |
1162 | return 0; | |
5008d581 | 1163 | |
3b63d2d3 | 1164 | case CREATE_FILE: |
31ed59c5 | 1165 | case TRUNCATE_FILE: |
1845fdd9 DR |
1166 | r = write_one_file(i, i->path); |
1167 | if (r < 0) | |
1168 | return r; | |
1169 | break; | |
265ffa1e | 1170 | |
5c5ccf12 | 1171 | case COPY_FILES: { |
5c5ccf12 LP |
1172 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1173 | if (r < 0) | |
1174 | return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); | |
1175 | ||
1176 | log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); | |
1177 | r = copy_tree(resolved, i->path, false); | |
f44b28fd MO |
1178 | |
1179 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1180 | r = -EEXIST; | |
1181 | ||
849958d1 | 1182 | if (r < 0) { |
e156347e LP |
1183 | struct stat a, b; |
1184 | ||
8d3d7072 MS |
1185 | if (r != -EEXIST) |
1186 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1187 | |
5c5ccf12 LP |
1188 | if (stat(resolved, &a) < 0) |
1189 | return log_error_errno(errno, "stat(%s) failed: %m", resolved); | |
e156347e | 1190 | |
4a62c710 MS |
1191 | if (stat(i->path, &b) < 0) |
1192 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1193 | |
1194 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1195 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1196 | return 0; | |
1197 | } | |
849958d1 LP |
1198 | } |
1199 | ||
b705ab6a | 1200 | r = path_set_perms(i, i->path); |
849958d1 LP |
1201 | if (r < 0) |
1202 | return r; | |
1203 | ||
1204 | break; | |
1205 | ||
d4e9eb91 | 1206 | case WRITE_FILE: |
081043cf | 1207 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
1208 | if (r < 0) |
1209 | return r; | |
5008d581 | 1210 | |
3b63d2d3 LP |
1211 | break; |
1212 | ||
3b63d2d3 | 1213 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1214 | case TRUNCATE_DIRECTORY: |
1215 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1216 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1217 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
5008d581 | 1218 | |
d7b8eec7 | 1219 | RUN_WITH_UMASK(0000) |
5c0d398d | 1220 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1221 | |
5fb13eb5 LP |
1222 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
1223 | RUN_WITH_UMASK((~i->mode) & 0777) | |
d7b8eec7 | 1224 | r = btrfs_subvol_make(i->path); |
5fb13eb5 | 1225 | } else |
d7b8eec7 LP |
1226 | r = 0; |
1227 | ||
582deb84 | 1228 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1229 | RUN_WITH_UMASK(0000) |
1230 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1231 | |
e156347e | 1232 | if (r < 0) { |
7b135a73 | 1233 | int k; |
5008d581 | 1234 | |
7b135a73 LP |
1235 | if (r != -EEXIST && r != -EROFS) |
1236 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); | |
5008d581 | 1237 | |
7b135a73 LP |
1238 | k = is_dir(i->path, false); |
1239 | if (k == -ENOENT && r == -EROFS) | |
1240 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1241 | if (k < 0) | |
1242 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1243 | if (!k) { | |
1244 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1245 | return 0; |
1246 | } | |
294929f8 ZJS |
1247 | |
1248 | creation = CREATION_EXISTING; | |
1249 | } else | |
1250 | creation = CREATION_NORMAL; | |
7b135a73 | 1251 | |
7a7d5db7 | 1252 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1253 | |
5fb13eb5 LP |
1254 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1255 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
1256 | if (r == -ENOTTY) { | |
1257 | 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); | |
1258 | return 0; | |
1259 | } | |
1260 | if (r == -EROFS) { | |
1261 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of read-only file system: %m", i->path); | |
1262 | return 0; | |
1263 | } | |
1264 | if (r < 0) | |
1265 | return log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1266 | if (r > 0) | |
1267 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); | |
1268 | if (r == 0) | |
1269 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); | |
1270 | } | |
1271 | ||
b705ab6a | 1272 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1273 | if (r < 0) |
1274 | return r; | |
3b63d2d3 LP |
1275 | |
1276 | break; | |
ee17ee7c LP |
1277 | |
1278 | case CREATE_FIFO: | |
1279 | ||
5c0d398d | 1280 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1281 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1282 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1283 | mac_selinux_create_file_clear(); |
5c0d398d | 1284 | } |
ee17ee7c | 1285 | |
1554afae | 1286 | if (r < 0) { |
4a62c710 MS |
1287 | if (errno != EEXIST) |
1288 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1289 | |
a542c4dc | 1290 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1291 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1292 | |
1554afae LP |
1293 | if (!S_ISFIFO(st.st_mode)) { |
1294 | ||
1295 | if (i->force) { | |
1554afae | 1296 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1297 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1298 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1299 | mac_selinux_create_file_clear(); |
1554afae LP |
1300 | } |
1301 | ||
f647962d MS |
1302 | if (r < 0) |
1303 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1304 | creation = CREATION_FORCE; |
1554afae | 1305 | } else { |
a542c4dc | 1306 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1307 | return 0; |
1308 | } | |
294929f8 ZJS |
1309 | } else |
1310 | creation = CREATION_EXISTING; | |
1311 | } else | |
1312 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1313 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1314 | |
b705ab6a | 1315 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1316 | if (r < 0) |
1317 | return r; | |
ee17ee7c LP |
1318 | |
1319 | break; | |
5c5ccf12 | 1320 | } |
a8d88783 | 1321 | |
5c5ccf12 | 1322 | case CREATE_SYMLINK: { |
5c5ccf12 LP |
1323 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1324 | if (r < 0) | |
1325 | return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); | |
468d726b | 1326 | |
ecabcf8b | 1327 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1328 | r = symlink(resolved, i->path); |
ecabcf8b | 1329 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1330 | |
468d726b | 1331 | if (r < 0) { |
2e78fa79 | 1332 | _cleanup_free_ char *x = NULL; |
468d726b | 1333 | |
4a62c710 | 1334 | if (errno != EEXIST) |
5c5ccf12 | 1335 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
2e78fa79 LP |
1336 | |
1337 | r = readlink_malloc(i->path, &x); | |
5c5ccf12 | 1338 | if (r < 0 || !streq(resolved, x)) { |
2e78fa79 LP |
1339 | |
1340 | if (i->force) { | |
ecabcf8b | 1341 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1342 | r = symlink_atomic(resolved, i->path); |
ecabcf8b | 1343 | mac_selinux_create_file_clear(); |
2e78fa79 | 1344 | |
f647962d | 1345 | if (r < 0) |
5c5ccf12 | 1346 | return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
a542c4dc | 1347 | |
294929f8 | 1348 | creation = CREATION_FORCE; |
1554afae | 1349 | } else { |
582deb84 | 1350 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1351 | return 0; |
1352 | } | |
294929f8 ZJS |
1353 | } else |
1354 | creation = CREATION_EXISTING; | |
1355 | } else | |
a542c4dc | 1356 | |
294929f8 | 1357 | creation = CREATION_NORMAL; |
7a7d5db7 | 1358 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1359 | break; |
5c5ccf12 | 1360 | } |
468d726b LP |
1361 | |
1362 | case CREATE_BLOCK_DEVICE: | |
1363 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1364 | mode_t file_type; |
1365 | ||
1366 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1367 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1368 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1369 | that case to avoid noise, and we don't support |
1370 | virtualized devices in containers anyway. */ | |
1371 | ||
1372 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1373 | return 0; | |
1374 | } | |
1375 | ||
1554afae | 1376 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1377 | |
5c0d398d | 1378 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1379 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1380 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1381 | mac_selinux_create_file_clear(); |
5c0d398d | 1382 | } |
468d726b | 1383 | |
6555ad8e KS |
1384 | if (r < 0) { |
1385 | if (errno == EPERM) { | |
1386 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1387 | "skipping creation of device node %s.", i->path); | |
1388 | return 0; | |
1389 | } | |
1390 | ||
4a62c710 MS |
1391 | if (errno != EEXIST) |
1392 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1393 | |
a542c4dc | 1394 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1395 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1396 | |
1554afae LP |
1397 | if ((st.st_mode & S_IFMT) != file_type) { |
1398 | ||
1399 | if (i->force) { | |
1400 | ||
1401 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1402 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1403 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1404 | mac_selinux_create_file_clear(); |
1554afae LP |
1405 | } |
1406 | ||
f647962d | 1407 | if (r < 0) |
294929f8 ZJS |
1408 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1409 | creation = CREATION_FORCE; | |
1554afae LP |
1410 | } else { |
1411 | log_debug("%s is not a device node.", i->path); | |
1412 | return 0; | |
1413 | } | |
294929f8 ZJS |
1414 | } else |
1415 | creation = CREATION_EXISTING; | |
1416 | } else | |
1417 | creation = CREATION_NORMAL; | |
a542c4dc | 1418 | |
294929f8 | 1419 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1420 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1421 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1422 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1423 | |
b705ab6a | 1424 | r = path_set_perms(i, i->path); |
468d726b LP |
1425 | if (r < 0) |
1426 | return r; | |
1427 | ||
1428 | break; | |
1429 | } | |
1430 | ||
e73a03e0 | 1431 | case ADJUST_MODE: |
777b87e7 | 1432 | case RELABEL_PATH: |
b705ab6a | 1433 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1434 | if (r < 0) |
96ca8194 | 1435 | return r; |
777b87e7 MS |
1436 | break; |
1437 | ||
a8d88783 | 1438 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1439 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1440 | if (r < 0) |
1441 | return r; | |
ebf4e801 | 1442 | break; |
e73a03e0 | 1443 | |
ebf4e801 | 1444 | case SET_XATTR: |
b705ab6a ZJS |
1445 | r = glob_item(i, path_set_xattrs, false); |
1446 | if (r < 0) | |
1447 | return r; | |
1448 | break; | |
1449 | ||
1450 | case RECURSIVE_SET_XATTR: | |
1451 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1452 | if (r < 0) |
1453 | return r; | |
e73a03e0 | 1454 | break; |
f8eeeaf9 ZJS |
1455 | |
1456 | case SET_ACL: | |
b705ab6a | 1457 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1458 | if (r < 0) |
1459 | return r; | |
b705ab6a ZJS |
1460 | break; |
1461 | ||
1462 | case RECURSIVE_SET_ACL: | |
1463 | r = glob_item(i, path_set_acls, true); | |
1464 | if (r < 0) | |
1465 | return r; | |
1466 | break; | |
22c3a6ca | 1467 | |
88ec4dfa LP |
1468 | case SET_ATTRIBUTE: |
1469 | r = glob_item(i, path_set_attribute, false); | |
22c3a6ca GB |
1470 | if (r < 0) |
1471 | return r; | |
1472 | break; | |
1473 | ||
88ec4dfa LP |
1474 | case RECURSIVE_SET_ATTRIBUTE: |
1475 | r = glob_item(i, path_set_attribute, true); | |
22c3a6ca GB |
1476 | if (r < 0) |
1477 | return r; | |
1478 | break; | |
3b63d2d3 LP |
1479 | } |
1480 | ||
f05bc3f7 | 1481 | return 0; |
3b63d2d3 LP |
1482 | } |
1483 | ||
a0896123 | 1484 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1485 | int r; |
1486 | ||
1487 | assert(i); | |
1488 | ||
1489 | switch (i->type) { | |
1490 | ||
3b63d2d3 | 1491 | case REMOVE_PATH: |
4a62c710 | 1492 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1493 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1494 | |
1495 | break; | |
1496 | ||
1497 | case TRUNCATE_DIRECTORY: | |
1498 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1499 | /* FIXME: we probably should use dir_cleanup() here |
1500 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1501 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1502 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1503 | if (r < 0 && r != -ENOENT) |
1504 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1505 | |
1506 | break; | |
7fcb4b9b ZJS |
1507 | |
1508 | default: | |
1509 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1510 | } |
1511 | ||
1512 | return 0; | |
1513 | } | |
1514 | ||
a0896123 | 1515 | static int remove_item(Item *i) { |
99e68c0b MS |
1516 | int r = 0; |
1517 | ||
b8bb3e8f LP |
1518 | assert(i); |
1519 | ||
582deb84 ZJS |
1520 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1521 | ||
b8bb3e8f LP |
1522 | switch (i->type) { |
1523 | ||
1524 | case CREATE_FILE: | |
1525 | case TRUNCATE_FILE: | |
1526 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1527 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1528 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1529 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
ee17ee7c | 1530 | case CREATE_FIFO: |
468d726b LP |
1531 | case CREATE_SYMLINK: |
1532 | case CREATE_CHAR_DEVICE: | |
1533 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 1534 | case IGNORE_PATH: |
78a92a5a | 1535 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1536 | case ADJUST_MODE: |
777b87e7 | 1537 | case RELABEL_PATH: |
a8d88783 | 1538 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1539 | case WRITE_FILE: |
849958d1 | 1540 | case COPY_FILES: |
ebf4e801 | 1541 | case SET_XATTR: |
b705ab6a | 1542 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1543 | case SET_ACL: |
b705ab6a | 1544 | case RECURSIVE_SET_ACL: |
88ec4dfa LP |
1545 | case SET_ATTRIBUTE: |
1546 | case RECURSIVE_SET_ATTRIBUTE: | |
b8bb3e8f LP |
1547 | break; |
1548 | ||
1549 | case REMOVE_PATH: | |
1550 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1551 | case RECURSIVE_REMOVE_PATH: |
081043cf | 1552 | r = glob_item(i, remove_item_instance, false); |
99e68c0b | 1553 | break; |
b8bb3e8f LP |
1554 | } |
1555 | ||
99e68c0b | 1556 | return r; |
b8bb3e8f LP |
1557 | } |
1558 | ||
78a92a5a | 1559 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1560 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1561 | struct stat s, ps; |
1562 | bool mountpoint; | |
78a92a5a | 1563 | usec_t cutoff, n; |
582deb84 | 1564 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1565 | |
1566 | assert(i); | |
1567 | ||
1568 | if (!i->age_set) | |
1569 | return 0; | |
1570 | ||
1571 | n = now(CLOCK_REALTIME); | |
1572 | if (n < i->age) | |
1573 | return 0; | |
1574 | ||
1575 | cutoff = n - i->age; | |
1576 | ||
df99a9ef | 1577 | d = opendir_nomod(instance); |
78a92a5a | 1578 | if (!d) { |
582deb84 ZJS |
1579 | if (errno == ENOENT || errno == ENOTDIR) { |
1580 | log_debug_errno(errno, "Directory \"%s\": %m", instance); | |
78a92a5a | 1581 | return 0; |
582deb84 | 1582 | } |
78a92a5a | 1583 | |
582deb84 | 1584 | log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1585 | return -errno; |
1586 | } | |
1587 | ||
4a62c710 MS |
1588 | if (fstat(dirfd(d), &s) < 0) |
1589 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1590 | |
1591 | if (!S_ISDIR(s.st_mode)) { | |
1592 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1593 | return -ENOTDIR; |
78a92a5a MS |
1594 | } |
1595 | ||
4a62c710 MS |
1596 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1597 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a | 1598 | |
2bb158c1 | 1599 | mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
78a92a5a | 1600 | |
582deb84 ZJS |
1601 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1602 | mountpoint ? "mount point" : "directory", | |
1603 | instance, | |
1604 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1605 | ||
1606 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1607 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1608 | } |
1609 | ||
1610 | static int clean_item(Item *i) { | |
1611 | int r = 0; | |
1612 | ||
1613 | assert(i); | |
1614 | ||
582deb84 ZJS |
1615 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1616 | ||
78a92a5a MS |
1617 | switch (i->type) { |
1618 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1619 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1620 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1621 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
78a92a5a MS |
1622 | case TRUNCATE_DIRECTORY: |
1623 | case IGNORE_PATH: | |
849958d1 | 1624 | case COPY_FILES: |
78a92a5a MS |
1625 | clean_item_instance(i, i->path); |
1626 | break; | |
1627 | case IGNORE_DIRECTORY_PATH: | |
081043cf | 1628 | r = glob_item(i, clean_item_instance, false); |
78a92a5a MS |
1629 | break; |
1630 | default: | |
1631 | break; | |
1632 | } | |
1633 | ||
1634 | return r; | |
1635 | } | |
1636 | ||
3f93da98 ZJS |
1637 | static int process_item_array(ItemArray *array); |
1638 | ||
3b63d2d3 | 1639 | static int process_item(Item *i) { |
1e95893a | 1640 | int r, q, p, t = 0; |
9348f0e6 | 1641 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1642 | |
1643 | assert(i); | |
1644 | ||
1910cd0e LP |
1645 | if (i->done) |
1646 | return 0; | |
1647 | ||
1648 | i->done = true; | |
1649 | ||
9348f0e6 ZJS |
1650 | prefix = malloc(strlen(i->path) + 1); |
1651 | if (!prefix) | |
1652 | return log_oom(); | |
1653 | ||
1910cd0e | 1654 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1655 | ItemArray *j; |
1910cd0e | 1656 | |
ef43a391 | 1657 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
1658 | if (j) { |
1659 | int s; | |
1660 | ||
3f93da98 | 1661 | s = process_item_array(j); |
1db50423 ZJS |
1662 | if (s < 0 && t == 0) |
1663 | t = s; | |
1664 | } | |
1910cd0e LP |
1665 | } |
1666 | ||
3b63d2d3 | 1667 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1668 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1669 | p = arg_clean ? clean_item(i) : 0; |
1670 | ||
1db50423 ZJS |
1671 | return t < 0 ? t : |
1672 | r < 0 ? r : | |
1673 | q < 0 ? q : | |
1674 | p; | |
3b63d2d3 LP |
1675 | } |
1676 | ||
3f93da98 ZJS |
1677 | static int process_item_array(ItemArray *array) { |
1678 | unsigned n; | |
1679 | int r = 0, k; | |
753615e8 | 1680 | |
3f93da98 ZJS |
1681 | assert(array); |
1682 | ||
1683 | for (n = 0; n < array->count; n++) { | |
1684 | k = process_item(array->items + n); | |
1685 | if (k < 0 && r == 0) | |
1686 | r = k; | |
1687 | } | |
1688 | ||
1689 | return r; | |
1690 | } | |
3b63d2d3 | 1691 | |
3f93da98 ZJS |
1692 | static void item_free_contents(Item *i) { |
1693 | assert(i); | |
3b63d2d3 | 1694 | free(i->path); |
468d726b | 1695 | free(i->argument); |
ebf4e801 | 1696 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1697 | |
1698 | #ifdef HAVE_ACL | |
1699 | acl_free(i->acl_access); | |
1700 | acl_free(i->acl_default); | |
1701 | #endif | |
3b63d2d3 LP |
1702 | } |
1703 | ||
3f93da98 ZJS |
1704 | static void item_array_free(ItemArray *a) { |
1705 | unsigned n; | |
1706 | ||
1707 | if (!a) | |
1708 | return; | |
1709 | ||
1710 | for (n = 0; n < a->count; n++) | |
1711 | item_free_contents(a->items + n); | |
1712 | free(a->items); | |
1713 | free(a); | |
1714 | } | |
e2f2fb78 | 1715 | |
17493fa5 LP |
1716 | static int item_compare(const void *a, const void *b) { |
1717 | const Item *x = a, *y = b; | |
1718 | ||
1719 | /* Make sure that the ownership taking item is put first, so | |
1720 | * that we first create the node, and then can adjust it */ | |
1721 | ||
1722 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
1723 | return -1; | |
1724 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
1725 | return 1; | |
1726 | ||
1727 | return (int) x->type - (int) y->type; | |
1728 | } | |
1729 | ||
3f93da98 | 1730 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1731 | assert(a); |
1732 | assert(b); | |
3f93da98 | 1733 | assert(streq(a->path, b->path)); |
bfe95f35 | 1734 | |
3f93da98 ZJS |
1735 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1736 | /* check if the items are the same */ | |
1737 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1738 | |
3f93da98 ZJS |
1739 | a->uid_set == b->uid_set && |
1740 | a->uid == b->uid && | |
bfe95f35 | 1741 | |
3f93da98 ZJS |
1742 | a->gid_set == b->gid_set && |
1743 | a->gid == b->gid && | |
bfe95f35 | 1744 | |
3f93da98 ZJS |
1745 | a->mode_set == b->mode_set && |
1746 | a->mode == b->mode && | |
bfe95f35 | 1747 | |
3f93da98 ZJS |
1748 | a->age_set == b->age_set && |
1749 | a->age == b->age && | |
bfe95f35 | 1750 | |
3f93da98 | 1751 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1752 | |
3f93da98 | 1753 | a->keep_first_level == b->keep_first_level && |
468d726b | 1754 | |
3f93da98 | 1755 | a->major_minor == b->major_minor; |
468d726b | 1756 | |
bfe95f35 LP |
1757 | return true; |
1758 | } | |
1759 | ||
a2aced4a DR |
1760 | static bool should_include_path(const char *path) { |
1761 | char **prefix; | |
1762 | ||
abef3f91 | 1763 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
1764 | if (path_startswith(path, *prefix)) { |
1765 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
1766 | path, *prefix); | |
5c795114 | 1767 | return false; |
582deb84 | 1768 | } |
a2aced4a | 1769 | |
abef3f91 | 1770 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
1771 | if (path_startswith(path, *prefix)) { |
1772 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 1773 | return true; |
582deb84 | 1774 | } |
a2aced4a | 1775 | |
5c795114 DR |
1776 | /* no matches, so we should include this path only if we |
1777 | * have no whitelist at all */ | |
582deb84 ZJS |
1778 | if (strv_length(arg_include_prefixes) == 0) |
1779 | return true; | |
1780 | ||
1781 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
1782 | return false; | |
a2aced4a DR |
1783 | } |
1784 | ||
fba6e687 | 1785 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a | 1786 | |
cde684a2 | 1787 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1788 | _cleanup_(item_free_contents) Item i = {}; |
1789 | ItemArray *existing; | |
ef43a391 | 1790 | OrderedHashmap *h; |
657cf7f4 | 1791 | int r, pos; |
5f255144 | 1792 | bool force = false, boot = false; |
3b63d2d3 LP |
1793 | |
1794 | assert(fname); | |
1795 | assert(line >= 1); | |
1796 | assert(buffer); | |
1797 | ||
68685607 | 1798 | r = extract_many_words( |
4034a06d | 1799 | &buffer, |
68685607 | 1800 | NULL, |
12ba2c44 | 1801 | EXTRACT_QUOTES, |
4034a06d LP |
1802 | &action, |
1803 | &path, | |
1804 | &mode, | |
1805 | &user, | |
1806 | &group, | |
1807 | &age, | |
1808 | NULL); | |
657cf7f4 | 1809 | if (r < 0) |
1810 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); | |
1811 | else if (r < 2) { | |
3b63d2d3 | 1812 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1813 | return -EIO; |
5008d581 LP |
1814 | } |
1815 | ||
aa5f6817 | 1816 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
1817 | i.argument = strdup(buffer); |
1818 | if (!i.argument) | |
1819 | return log_oom(); | |
1820 | } | |
1821 | ||
2e78fa79 LP |
1822 | if (isempty(action)) { |
1823 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1824 | return -EINVAL; |
2e78fa79 LP |
1825 | } |
1826 | ||
5f255144 ZJS |
1827 | for (pos = 1; action[pos]; pos++) { |
1828 | if (action[pos] == '!' && !boot) | |
1829 | boot = true; | |
1830 | else if (action[pos] == '+' && !force) | |
1831 | force = true; | |
1832 | else { | |
1833 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1834 | fname, line, action); | |
1835 | return -EINVAL; | |
1836 | } | |
2e78fa79 LP |
1837 | } |
1838 | ||
582deb84 ZJS |
1839 | if (boot && !arg_boot) { |
1840 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
1841 | action, path); | |
c4708f13 | 1842 | return 0; |
582deb84 | 1843 | } |
c4708f13 | 1844 | |
3f93da98 ZJS |
1845 | i.type = action[0]; |
1846 | i.force = force; | |
2e78fa79 | 1847 | |
3f93da98 | 1848 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1849 | if (r < 0) { |
1850 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1851 | return r; | |
1852 | } | |
1853 | ||
3f93da98 | 1854 | switch (i.type) { |
468d726b | 1855 | |
777b87e7 | 1856 | case CREATE_DIRECTORY: |
d7b8eec7 | 1857 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1858 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1859 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
777b87e7 MS |
1860 | case TRUNCATE_DIRECTORY: |
1861 | case CREATE_FIFO: | |
1862 | case IGNORE_PATH: | |
78a92a5a | 1863 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1864 | case REMOVE_PATH: |
1865 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1866 | case ADJUST_MODE: |
777b87e7 MS |
1867 | case RELABEL_PATH: |
1868 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 1869 | if (i.argument) |
bd550f78 | 1870 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
1871 | |
1872 | break; | |
1873 | ||
1874 | case CREATE_FILE: | |
1875 | case TRUNCATE_FILE: | |
777b87e7 | 1876 | break; |
468d726b LP |
1877 | |
1878 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1879 | if (!i.argument) { |
1880 | i.argument = strappend("/usr/share/factory/", i.path); | |
1881 | if (!i.argument) | |
2f3b873a | 1882 | return log_oom(); |
468d726b LP |
1883 | } |
1884 | break; | |
1885 | ||
31ed59c5 | 1886 | case WRITE_FILE: |
3f93da98 | 1887 | if (!i.argument) { |
31ed59c5 | 1888 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1889 | return -EBADMSG; |
31ed59c5 LP |
1890 | } |
1891 | break; | |
1892 | ||
849958d1 | 1893 | case COPY_FILES: |
3f93da98 ZJS |
1894 | if (!i.argument) { |
1895 | i.argument = strappend("/usr/share/factory/", i.path); | |
1896 | if (!i.argument) | |
2f3b873a | 1897 | return log_oom(); |
3f93da98 | 1898 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1899 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1900 | return -EBADMSG; | |
1901 | } | |
1902 | ||
3f93da98 | 1903 | path_kill_slashes(i.argument); |
849958d1 LP |
1904 | break; |
1905 | ||
468d726b LP |
1906 | case CREATE_CHAR_DEVICE: |
1907 | case CREATE_BLOCK_DEVICE: { | |
1908 | unsigned major, minor; | |
1909 | ||
3f93da98 | 1910 | if (!i.argument) { |
468d726b | 1911 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1912 | return -EBADMSG; |
468d726b LP |
1913 | } |
1914 | ||
3f93da98 ZJS |
1915 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1916 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1917 | return -EBADMSG; |
468d726b LP |
1918 | } |
1919 | ||
3f93da98 | 1920 | i.major_minor = makedev(major, minor); |
468d726b LP |
1921 | break; |
1922 | } | |
1923 | ||
ebf4e801 | 1924 | case SET_XATTR: |
b705ab6a | 1925 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1926 | if (!i.argument) { |
ebf4e801 MW |
1927 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1928 | return -EBADMSG; | |
1929 | } | |
bd550f78 | 1930 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
1931 | if (r < 0) |
1932 | return r; | |
1933 | break; | |
1934 | ||
f8eeeaf9 | 1935 | case SET_ACL: |
b705ab6a | 1936 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1937 | if (!i.argument) { |
1938 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1939 | return -EBADMSG; | |
1940 | } | |
bd550f78 | 1941 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
1942 | if (r < 0) |
1943 | return r; | |
1944 | break; | |
1945 | ||
88ec4dfa LP |
1946 | case SET_ATTRIBUTE: |
1947 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 1948 | if (!i.argument) { |
88ec4dfa | 1949 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
1950 | return -EBADMSG; |
1951 | } | |
bd550f78 | 1952 | r = parse_attribute_from_arg(&i); |
22c3a6ca GB |
1953 | if (r < 0) |
1954 | return r; | |
1955 | break; | |
1956 | ||
777b87e7 | 1957 | default: |
582deb84 | 1958 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
7f2c1f4d | 1959 | return -EBADMSG; |
3b63d2d3 | 1960 | } |
468d726b | 1961 | |
3f93da98 ZJS |
1962 | if (!path_is_absolute(i.path)) { |
1963 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1964 | return -EBADMSG; |
3b63d2d3 LP |
1965 | } |
1966 | ||
3f93da98 | 1967 | path_kill_slashes(i.path); |
3b63d2d3 | 1968 | |
3f93da98 | 1969 | if (!should_include_path(i.path)) |
7f2c1f4d | 1970 | return 0; |
5008d581 | 1971 | |
cf9a4abd | 1972 | if (arg_root) { |
cde684a2 LP |
1973 | char *p; |
1974 | ||
1d13f648 | 1975 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
1976 | if (!p) |
1977 | return log_oom(); | |
1978 | ||
3f93da98 ZJS |
1979 | free(i.path); |
1980 | i.path = p; | |
cf9a4abd MM |
1981 | } |
1982 | ||
90937fe3 | 1983 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
1984 | const char *u = user; |
1985 | ||
3f93da98 | 1986 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 1987 | if (r < 0) { |
3b63d2d3 | 1988 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1989 | return r; |
3b63d2d3 LP |
1990 | } |
1991 | ||
3f93da98 | 1992 | i.uid_set = true; |
3b63d2d3 LP |
1993 | } |
1994 | ||
90937fe3 | 1995 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
1996 | const char *g = group; |
1997 | ||
3f93da98 | 1998 | r = get_group_creds(&g, &i.gid); |
4b67834e | 1999 | if (r < 0) { |
3b63d2d3 | 2000 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 2001 | return r; |
3b63d2d3 LP |
2002 | } |
2003 | ||
3f93da98 | 2004 | i.gid_set = true; |
3b63d2d3 LP |
2005 | } |
2006 | ||
90937fe3 | 2007 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 2008 | const char *mm = mode; |
3b63d2d3 LP |
2009 | unsigned m; |
2010 | ||
abef3f91 | 2011 | if (*mm == '~') { |
3f93da98 | 2012 | i.mask_perms = true; |
abef3f91 LP |
2013 | mm++; |
2014 | } | |
2015 | ||
2ff7b0a5 | 2016 | if (parse_mode(mm, &m) < 0) { |
3b63d2d3 | 2017 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2018 | return -EBADMSG; |
3b63d2d3 LP |
2019 | } |
2020 | ||
3f93da98 ZJS |
2021 | i.mode = m; |
2022 | i.mode_set = true; | |
3b63d2d3 | 2023 | } else |
5fb13eb5 | 2024 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2025 | |
90937fe3 | 2026 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2027 | const char *a = age; |
2028 | ||
2029 | if (*a == '~') { | |
3f93da98 | 2030 | i.keep_first_level = true; |
24f3a374 LP |
2031 | a++; |
2032 | } | |
2033 | ||
3f93da98 | 2034 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 2035 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2036 | return -EBADMSG; |
3b63d2d3 LP |
2037 | } |
2038 | ||
3f93da98 | 2039 | i.age_set = true; |
3b63d2d3 LP |
2040 | } |
2041 | ||
3f93da98 | 2042 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2043 | |
ef43a391 | 2044 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2045 | if (existing) { |
3f93da98 ZJS |
2046 | unsigned n; |
2047 | ||
2048 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2049 | if (!item_compatible(existing->items + n, &i)) { |
505ef0e3 | 2050 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 2051 | fname, line, i.path); |
6487ada8 MP |
2052 | return 0; |
2053 | } | |
ebf4e801 MW |
2054 | } |
2055 | } else { | |
3f93da98 | 2056 | existing = new0(ItemArray, 1); |
ef43a391 | 2057 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2058 | if (r < 0) |
2059 | return log_oom(); | |
bfe95f35 LP |
2060 | } |
2061 | ||
3f93da98 ZJS |
2062 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2063 | return log_oom(); | |
5008d581 | 2064 | |
3f93da98 | 2065 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2066 | |
2067 | /* Sort item array, to enforce stable ordering of application */ | |
2068 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2069 | |
3f93da98 | 2070 | zero(i); |
7f2c1f4d | 2071 | return 0; |
5008d581 LP |
2072 | } |
2073 | ||
601185b4 | 2074 | static void help(void) { |
522d4a49 LP |
2075 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2076 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2077 | " -h --help Show this help\n" |
eb9da376 | 2078 | " --version Show package version\n" |
5c795114 DR |
2079 | " --create Create marked files/directories\n" |
2080 | " --clean Clean up marked directories\n" | |
2081 | " --remove Remove marked files/directories\n" | |
81815651 | 2082 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2083 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2084 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
cf9a4abd | 2085 | " --root=PATH Operate on an alternate filesystem root\n", |
3b63d2d3 | 2086 | program_invocation_short_name); |
3b63d2d3 LP |
2087 | } |
2088 | ||
2089 | static int parse_argv(int argc, char *argv[]) { | |
2090 | ||
2091 | enum { | |
eb9da376 | 2092 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
2093 | ARG_CREATE, |
2094 | ARG_CLEAN, | |
fba6e687 | 2095 | ARG_REMOVE, |
81815651 | 2096 | ARG_BOOT, |
5c795114 DR |
2097 | ARG_PREFIX, |
2098 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2099 | ARG_ROOT, |
3b63d2d3 LP |
2100 | }; |
2101 | ||
2102 | static const struct option options[] = { | |
5c795114 | 2103 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 2104 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
2105 | { "create", no_argument, NULL, ARG_CREATE }, |
2106 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2107 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2108 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2109 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2110 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2111 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 2112 | {} |
3b63d2d3 LP |
2113 | }; |
2114 | ||
0f474365 | 2115 | int c, r; |
3b63d2d3 LP |
2116 | |
2117 | assert(argc >= 0); | |
2118 | assert(argv); | |
2119 | ||
601185b4 | 2120 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2121 | |
2122 | switch (c) { | |
2123 | ||
2124 | case 'h': | |
601185b4 ZJS |
2125 | help(); |
2126 | return 0; | |
eb9da376 LP |
2127 | |
2128 | case ARG_VERSION: | |
3f6fd1ba | 2129 | return version(); |
3b63d2d3 LP |
2130 | |
2131 | case ARG_CREATE: | |
2132 | arg_create = true; | |
2133 | break; | |
2134 | ||
2135 | case ARG_CLEAN: | |
2136 | arg_clean = true; | |
2137 | break; | |
2138 | ||
2139 | case ARG_REMOVE: | |
2140 | arg_remove = true; | |
2141 | break; | |
2142 | ||
81815651 ZJS |
2143 | case ARG_BOOT: |
2144 | arg_boot = true; | |
c4708f13 ZJS |
2145 | break; |
2146 | ||
fba6e687 | 2147 | case ARG_PREFIX: |
7bc040fa | 2148 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2149 | return log_oom(); |
fba6e687 LP |
2150 | break; |
2151 | ||
5c795114 | 2152 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2153 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2154 | return log_oom(); |
2155 | break; | |
2156 | ||
cf9a4abd | 2157 | case ARG_ROOT: |
0f03c2a4 | 2158 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 2159 | if (r < 0) |
0f03c2a4 | 2160 | return r; |
cf9a4abd MM |
2161 | break; |
2162 | ||
3b63d2d3 LP |
2163 | case '?': |
2164 | return -EINVAL; | |
2165 | ||
2166 | default: | |
eb9da376 | 2167 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2168 | } |
3b63d2d3 LP |
2169 | |
2170 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 2171 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2172 | return -EINVAL; |
2173 | } | |
2174 | ||
2175 | return 1; | |
2176 | } | |
2177 | ||
fba6e687 | 2178 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
2179 | _cleanup_fclose_ FILE *f = NULL; |
2180 | char line[LINE_MAX]; | |
78a92a5a | 2181 | Iterator iterator; |
1731e34a | 2182 | unsigned v = 0; |
78a92a5a | 2183 | Item *i; |
1731e34a | 2184 | int r; |
fba6e687 LP |
2185 | |
2186 | assert(fn); | |
2187 | ||
cf9a4abd | 2188 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e | 2189 | if (r < 0) { |
582deb84 ZJS |
2190 | if (ignore_enoent && r == -ENOENT) { |
2191 | log_debug_errno(r, "Failed to open \"%s\": %m", fn); | |
fba6e687 | 2192 | return 0; |
582deb84 | 2193 | } |
fba6e687 | 2194 | |
8d3d7072 | 2195 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
fba6e687 | 2196 | } |
582deb84 | 2197 | log_debug("Reading config file \"%s\".", fn); |
fba6e687 | 2198 | |
1731e34a LP |
2199 | FOREACH_LINE(line, f, break) { |
2200 | char *l; | |
fba6e687 LP |
2201 | int k; |
2202 | ||
fba6e687 LP |
2203 | v++; |
2204 | ||
2205 | l = strstrip(line); | |
2206 | if (*l == '#' || *l == 0) | |
2207 | continue; | |
2208 | ||
1731e34a LP |
2209 | k = parse_line(fn, v, l); |
2210 | if (k < 0 && r == 0) | |
2211 | r = k; | |
fba6e687 LP |
2212 | } |
2213 | ||
78a92a5a | 2214 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2215 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2216 | Iterator iter; |
2217 | Item *j, *candidate_item = NULL; | |
2218 | ||
2219 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2220 | continue; | |
2221 | ||
ef43a391 | 2222 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2223 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2224 | continue; |
2225 | ||
2226 | if (path_equal(j->path, i->path)) { | |
2227 | candidate_item = j; | |
2228 | break; | |
2229 | } | |
2230 | ||
2231 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2232 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2233 | candidate_item = j; | |
2234 | } | |
2235 | ||
9ed2a35e | 2236 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2237 | i->age = candidate_item->age; |
2238 | i->age_set = true; | |
2239 | } | |
2240 | } | |
2241 | ||
fba6e687 | 2242 | if (ferror(f)) { |
56f64d95 | 2243 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2244 | if (r == 0) |
2245 | r = -EIO; | |
2246 | } | |
2247 | ||
fba6e687 LP |
2248 | return r; |
2249 | } | |
2250 | ||
5008d581 | 2251 | int main(int argc, char *argv[]) { |
fabe5c0e | 2252 | int r, k; |
3f93da98 | 2253 | ItemArray *a; |
3b63d2d3 LP |
2254 | Iterator iterator; |
2255 | ||
fdcad0c2 LP |
2256 | r = parse_argv(argc, argv); |
2257 | if (r <= 0) | |
753615e8 | 2258 | goto finish; |
5008d581 | 2259 | |
eb0ca9eb | 2260 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2261 | log_parse_environment(); |
2262 | log_open(); | |
2263 | ||
4c12626c LP |
2264 | umask(0022); |
2265 | ||
cc56fafe | 2266 | mac_selinux_init(NULL); |
5008d581 | 2267 | |
ef43a391 LP |
2268 | items = ordered_hashmap_new(&string_hash_ops); |
2269 | globs = ordered_hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
2270 | |
2271 | if (!items || !globs) { | |
fabe5c0e | 2272 | r = log_oom(); |
3b63d2d3 LP |
2273 | goto finish; |
2274 | } | |
2275 | ||
fabe5c0e | 2276 | r = 0; |
5008d581 | 2277 | |
fba6e687 LP |
2278 | if (optind < argc) { |
2279 | int j; | |
5008d581 | 2280 | |
9125670f | 2281 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
2282 | k = read_config_file(argv[j], false); |
2283 | if (k < 0 && r == 0) | |
2284 | r = k; | |
9125670f | 2285 | } |
5008d581 | 2286 | |
fba6e687 | 2287 | } else { |
fabe5c0e LP |
2288 | _cleanup_strv_free_ char **files = NULL; |
2289 | char **f; | |
5008d581 | 2290 | |
cf9a4abd | 2291 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 2292 | if (r < 0) { |
da927ba9 | 2293 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
2294 | goto finish; |
2295 | } | |
3b63d2d3 | 2296 | |
772f8371 | 2297 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
2298 | k = read_config_file(*f, true); |
2299 | if (k < 0 && r == 0) | |
2300 | r = k; | |
5008d581 | 2301 | } |
772f8371 | 2302 | } |
5008d581 | 2303 | |
17493fa5 LP |
2304 | /* The non-globbing ones usually create things, hence we apply |
2305 | * them first */ | |
ef43a391 | 2306 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 2307 | k = process_item_array(a); |
1db50423 ZJS |
2308 | if (k < 0 && r == 0) |
2309 | r = k; | |
2310 | } | |
b8bb3e8f | 2311 | |
17493fa5 LP |
2312 | /* The globbing ones usually alter things, hence we apply them |
2313 | * second. */ | |
ef43a391 | 2314 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 2315 | k = process_item_array(a); |
1db50423 ZJS |
2316 | if (k < 0 && r == 0) |
2317 | r = k; | |
2318 | } | |
3b63d2d3 | 2319 | |
5008d581 | 2320 | finish: |
ef43a391 | 2321 | while ((a = ordered_hashmap_steal_first(items))) |
3f93da98 | 2322 | item_array_free(a); |
3b63d2d3 | 2323 | |
ef43a391 | 2324 | while ((a = ordered_hashmap_steal_first(globs))) |
3f93da98 | 2325 | item_array_free(a); |
17b90525 | 2326 | |
ef43a391 LP |
2327 | ordered_hashmap_free(items); |
2328 | ordered_hashmap_free(globs); | |
5008d581 | 2329 | |
7bc040fa LP |
2330 | free(arg_include_prefixes); |
2331 | free(arg_exclude_prefixes); | |
cf9a4abd | 2332 | free(arg_root); |
a2aced4a | 2333 | |
17b90525 LP |
2334 | set_free_free(unix_sockets); |
2335 | ||
cc56fafe | 2336 | mac_selinux_finish(); |
29003cff | 2337 | |
fabe5c0e | 2338 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 2339 | } |