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[thirdparty/systemd.git] / src / tmpfiles / tmpfiles.c
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53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
5008d581 2/***
96b2fb93
LP		 3 Copyright © 2010 Kay Sievers
4 Copyright © 2015 Zbigniew Jędrzejewski-Szmek
5008d581
LP		 5***/
6
5008d581 7#include <errno.h>
3f6fd1ba
LP		 8#include <fcntl.h>
9#include <fnmatch.h>
10#include <getopt.h>
11#include <glob.h>
5008d581 12#include <limits.h>
3f6fd1ba
LP		 13#include <linux/fs.h>
14#include <stdbool.h>
15#include <stddef.h>
3b63d2d3
LP		 16#include <stdio.h>
17#include <stdlib.h>
3f6fd1ba 18#include <string.h>
505ef0e3 19#include <sys/stat.h>
ebf4e801 20#include <sys/xattr.h>
d9daae55 21#include <sysexits.h>
3f6fd1ba
LP		 22#include <time.h>
23#include <unistd.h>
5008d581 24
5a8575ef
ZJS		 25#include "sd-path.h"
26
3f6fd1ba 27#include "acl-util.h"
b5efdb8a 28#include "alloc-util.h"
3f6fd1ba 29#include "btrfs-util.h"
430f0182 30#include "capability-util.h"
c8b3094d 31#include "chattr-util.h"
3f6fd1ba
LP		 32#include "conf-files.h"
33#include "copy.h"
a0f29c76 34#include "def.h"
8fb3f009 35#include "dirent-util.h"
4f5dd394 36#include "escape.h"
3ffd4af2 37#include "fd-util.h"
0d39fa9c 38#include "fileio.h"
f97b34a6 39#include "format-util.h"
f4f15635 40#include "fs-util.h"
7d50b32a 41#include "glob-util.h"
c004493c 42#include "io-util.h"
3f6fd1ba 43#include "label.h"
5008d581 44#include "log.h"
54693d9b 45#include "macro.h"
d39efe74 46#include "missing.h"
49e942b2 47#include "mkdir.h"
4e036b7a 48#include "mount-util.h"
dcd5c891 49#include "pager.h"
6bedfcbb 50#include "parse-util.h"
f2b5ca0e 51#include "path-lookup.h"
9eb977db 52#include "path-util.h"
c6878637 53#include "rm-rf.h"
d7b8eec7 54#include "selinux-util.h"
3f6fd1ba
LP		 55#include "set.h"
56#include "specifier.h"
8fcde012 57#include "stat-util.h"
15a5e950 58#include "stdio-util.h"
8b43440b 59#include "string-table.h"
07630cea 60#include "string-util.h"
3f6fd1ba 61#include "strv.h"
ceaaeb9b 62#include "terminal-util.h"
affb60b1 63#include "umask-util.h"
b1d4f8e1 64#include "user-util.h"
3f6fd1ba 65#include "util.h"
5008d581 66
01000479 67/* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
5008d581 68 * them in the file system. This is intended to be used to create
db019b8d
KS		 69 * properly owned directories beneath /tmp, /var/tmp, /run, which are
70 * volatile and hence need to be recreated on bootup. */
5008d581 71
66ccd038 72typedef enum ItemType {
b8bb3e8f 73 /* These ones take file names */
3b63d2d3
LP		 74 CREATE_FILE = 'f',
75 TRUNCATE_FILE = 'F',
76 CREATE_DIRECTORY = 'd',
77 TRUNCATE_DIRECTORY = 'D',
d7b8eec7 78 CREATE_SUBVOLUME = 'v',
5fb13eb5
LP		 79 CREATE_SUBVOLUME_INHERIT_QUOTA = 'q',
80 CREATE_SUBVOLUME_NEW_QUOTA = 'Q',
ee17ee7c 81 CREATE_FIFO = 'p',
468d726b
LP		 82 CREATE_SYMLINK = 'L',
83 CREATE_CHAR_DEVICE = 'c',
84 CREATE_BLOCK_DEVICE = 'b',
849958d1 85 COPY_FILES = 'C',
b8bb3e8f
LP		 86
87 /* These ones take globs */
17493fa5 88 WRITE_FILE = 'w',
df8dee85 89 EMPTY_DIRECTORY = 'e',
b705ab6a
ZJS		 90 SET_XATTR = 't',
91 RECURSIVE_SET_XATTR = 'T',
92 SET_ACL = 'a',
93 RECURSIVE_SET_ACL = 'A',
17493fa5
LP		 94 SET_ATTRIBUTE = 'h',
95 RECURSIVE_SET_ATTRIBUTE = 'H',
3b63d2d3 96 IGNORE_PATH = 'x',
78a92a5a 97 IGNORE_DIRECTORY_PATH = 'X',
3b63d2d3 98 REMOVE_PATH = 'r',
a8d88783 99 RECURSIVE_REMOVE_PATH = 'R',
777b87e7 100 RELABEL_PATH = 'z',
e73a03e0 101 RECURSIVE_RELABEL_PATH = 'Z',
17493fa5 102 ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */
66ccd038 103} ItemType;
3b63d2d3
LP		 104
105typedef struct Item {
66ccd038 106 ItemType type;
3b63d2d3
LP		 107
108 char *path;
468d726b 109 char *argument;
ebf4e801 110 char **xattrs;
349cc4a5 111#if HAVE_ACL
f8eeeaf9
ZJS		 112 acl_t acl_access;
113 acl_t acl_default;
114#endif
5008d581
LP		 115 uid_t uid;
116 gid_t gid;
3b63d2d3
LP		 117 mode_t mode;
118 usec_t age;
119
468d726b 120 dev_t major_minor;
88ec4dfa
LP		 121 unsigned attribute_value;
122 unsigned attribute_mask;
468d726b 123
3b63d2d3
LP		 124 bool uid_set:1;
125 bool gid_set:1;
126 bool mode_set:1;
127 bool age_set:1;
abef3f91 128 bool mask_perms:1;
88ec4dfa 129 bool attribute_set:1;
24f3a374
LP		 130
131 bool keep_first_level:1;
1910cd0e 132
2e78fa79
LP		 133 bool force:1;
134
1910cd0e 135 bool done:1;
3b63d2d3
LP		 136} Item;
137
3f93da98
ZJS		 138typedef struct ItemArray {
139 Item *items;
140 size_t count;
141 size_t size;
142} ItemArray;
143
5a8575ef
ZJS		 144typedef enum DirectoryType {
145 DIRECTORY_RUNTIME = 0,
146 DIRECTORY_STATE,
147 DIRECTORY_CACHE,
148 DIRECTORY_LOGS,
149 _DIRECTORY_TYPE_MAX,
150} DirectoryType;
151
ceaaeb9b 152static bool arg_cat_config = false;
f2b5ca0e 153static bool arg_user = false;
3b63d2d3
LP		 154static bool arg_create = false;
155static bool arg_clean = false;
156static bool arg_remove = false;
81815651 157static bool arg_boot = false;
dcd5c891 158static bool arg_no_pager = false;
3b63d2d3 159
7bc040fa
LP		 160static char **arg_include_prefixes = NULL;
161static char **arg_exclude_prefixes = NULL;
cf9a4abd 162static char *arg_root = NULL;
a6d8474f 163static char *arg_replace = NULL;
fba6e687 164
3b63d2d3
LP		 165#define MAX_DEPTH 256
166
ef43a391 167static OrderedHashmap *items = NULL, *globs = NULL;
7bc040fa
LP		 168static Set *unix_sockets = NULL;
169
4cef1923 170static int specifier_machine_id_safe(char specifier, void *data, void *userdata, char **ret);
5a8575ef 171static int specifier_directory(char specifier, void *data, void *userdata, char **ret);
4cef1923 172
bd550f78 173static const Specifier specifier_table[] = {
4cef1923 174 { 'm', specifier_machine_id_safe, NULL },
5a8575ef
ZJS		 175 { 'b', specifier_boot_id, NULL },
176 { 'H', specifier_host_name, NULL },
177 { 'v', specifier_kernel_release, NULL },
178
179 { 'U', specifier_user_id, NULL },
180 { 'u', specifier_user_name, NULL },
181 { 'h', specifier_user_home, NULL },
b294e594 182
5a8575ef
ZJS		 183 { 't', specifier_directory, UINT_TO_PTR(DIRECTORY_RUNTIME) },
184 { 'S', specifier_directory, UINT_TO_PTR(DIRECTORY_STATE) },
185 { 'C', specifier_directory, UINT_TO_PTR(DIRECTORY_CACHE) },
186 { 'L', specifier_directory, UINT_TO_PTR(DIRECTORY_LOGS) },
b294e594
LP		 187 { 'T', specifier_tmp_dir, NULL },
188 { 'V', specifier_var_tmp_dir, NULL },
bd550f78
LP		 189 {}
190};
191
4cef1923
FB		 192static int specifier_machine_id_safe(char specifier, void *data, void *userdata, char **ret) {
193 int r;
194
d8dab757
FB		 195 /* If /etc/machine_id is missing or empty (e.g. in a chroot environment)
196 * return a recognizable error so that the caller can skip the rule
4cef1923
FB		 197 * gracefully. */
198
199 r = specifier_machine_id(specifier, data, userdata, ret);
d8dab757 200 if (IN_SET(r, -ENOENT, -ENOMEDIUM))
5a8575ef 201 return -ENXIO;
4cef1923
FB		 202
203 return r;
204}
205
5a8575ef
ZJS		 206static int specifier_directory(char specifier, void *data, void *userdata, char **ret) {
207 struct table_entry {
208 uint64_t type;
209 const char *suffix;
210 };
211
212 static const struct table_entry paths_system[] = {
213 [DIRECTORY_RUNTIME] = { SD_PATH_SYSTEM_RUNTIME },
214 [DIRECTORY_STATE] = { SD_PATH_SYSTEM_STATE_PRIVATE },
215 [DIRECTORY_CACHE] = { SD_PATH_SYSTEM_STATE_CACHE },
216 [DIRECTORY_LOGS] = { SD_PATH_SYSTEM_STATE_LOGS },
217 };
218
219 static const struct table_entry paths_user[] = {
220 [DIRECTORY_RUNTIME] = { SD_PATH_USER_RUNTIME },
221 [DIRECTORY_STATE] = { SD_PATH_USER_CONFIGURATION },
222 [DIRECTORY_CACHE] = { SD_PATH_USER_STATE_CACHE },
223 [DIRECTORY_LOGS] = { SD_PATH_USER_CONFIGURATION, "log" },
224 };
225
226 unsigned i;
227 const struct table_entry *paths;
228
229 assert_cc(ELEMENTSOF(paths_system) == ELEMENTSOF(paths_user));
230 paths = arg_user ? paths_user : paths_system;
231
232 i = PTR_TO_UINT(data);
233 assert(i < ELEMENTSOF(paths_system));
234
235 return sd_path_home(paths[i].type, paths[i].suffix, ret);
236}
237
4cef1923
FB		 238static int log_unresolvable_specifier(const char *filename, unsigned line) {
239 static bool notified = false;
240
5a8575ef
ZJS		 241 /* In system mode, this is called when /etc is not fully initialized (e.g.
242 * in a chroot environment) where some specifiers are unresolvable. In user
243 * mode, this is called when some variables are not defined. These cases are
244 * not considered as an error so log at LOG_NOTICE only for the first time
245 * and then downgrade this to LOG_DEBUG for the rest. */
4cef1923
FB		 246
247 log_full(notified ? LOG_DEBUG : LOG_NOTICE,
5a8575ef
ZJS		 248 "[%s:%u] Failed to resolve specifier: %s, skipping",
249 filename, line,
250 arg_user ? "Required $XDG_... variable not defined" : "uninitialized /etc detected");
4cef1923
FB		 251
252 if (!notified)
253 log_notice("All rules containing unresolvable specifiers will be skipped.");
254
255 notified = true;
256 return 0;
257}
258
f2b5ca0e
ZJS		 259static int user_config_paths(char*** ret) {
260 _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
261 _cleanup_free_ char *persistent_config = NULL, *runtime_config = NULL, *data_home = NULL;
262 _cleanup_strv_free_ char **res = NULL;
263 int r;
264
265 r = xdg_user_dirs(&config_dirs, &data_dirs);
266 if (r < 0)
267 return r;
268
269 r = xdg_user_config_dir(&persistent_config, "/user-tmpfiles.d");
270 if (r < 0 && r != -ENXIO)
271 return r;
272
273 r = xdg_user_runtime_dir(&runtime_config, "/user-tmpfiles.d");
274 if (r < 0 && r != -ENXIO)
275 return r;
276
277 r = xdg_user_data_dir(&data_home, "/user-tmpfiles.d");
278 if (r < 0 && r != -ENXIO)
279 return r;
280
281 r = strv_extend_strv_concat(&res, config_dirs, "/user-tmpfiles.d");
282 if (r < 0)
283 return r;
284
285 r = strv_extend(&res, persistent_config);
286 if (r < 0)
287 return r;
288
289 r = strv_extend(&res, runtime_config);
290 if (r < 0)
291 return r;
292
293 r = strv_extend(&res, data_home);
294 if (r < 0)
295 return r;
296
297 r = strv_extend_strv_concat(&res, data_dirs, "/user-tmpfiles.d");
298 if (r < 0)
299 return r;
300
301 r = path_strv_make_absolute_cwd(res);
302 if (r < 0)
303 return r;
304
ae2a15bc 305 *ret = TAKE_PTR(res);
f2b5ca0e
ZJS		 306 return 0;
307}
308
66ccd038 309static bool needs_glob(ItemType t) {
cde684a2
LP		 310 return IN_SET(t,
311 WRITE_FILE,
312 IGNORE_PATH,
313 IGNORE_DIRECTORY_PATH,
314 REMOVE_PATH,
315 RECURSIVE_REMOVE_PATH,
df8dee85 316 EMPTY_DIRECTORY,
e73a03e0 317 ADJUST_MODE,
cde684a2 318 RELABEL_PATH,
b705ab6a
ZJS		 319 RECURSIVE_RELABEL_PATH,
320 SET_XATTR,
321 RECURSIVE_SET_XATTR,
322 SET_ACL,
34f64536
LP		 323 RECURSIVE_SET_ACL,
324 SET_ATTRIBUTE,
325 RECURSIVE_SET_ATTRIBUTE);
b8bb3e8f
LP		 326}
327
3f93da98
ZJS		 328static bool takes_ownership(ItemType t) {
329 return IN_SET(t,
330 CREATE_FILE,
331 TRUNCATE_FILE,
332 CREATE_DIRECTORY,
df8dee85 333 EMPTY_DIRECTORY,
3f93da98
ZJS		 334 TRUNCATE_DIRECTORY,
335 CREATE_SUBVOLUME,
5fb13eb5
LP		 336 CREATE_SUBVOLUME_INHERIT_QUOTA,
337 CREATE_SUBVOLUME_NEW_QUOTA,
3f93da98
ZJS		 338 CREATE_FIFO,
339 CREATE_SYMLINK,
340 CREATE_CHAR_DEVICE,
341 CREATE_BLOCK_DEVICE,
342 COPY_FILES,
3f93da98
ZJS		 343 WRITE_FILE,
344 IGNORE_PATH,
345 IGNORE_DIRECTORY_PATH,
346 REMOVE_PATH,
347 RECURSIVE_REMOVE_PATH);
348}
349
ef43a391 350static struct Item* find_glob(OrderedHashmap *h, const char *match) {
3f93da98 351 ItemArray *j;
b8bb3e8f
LP		 352 Iterator i;
353
ef43a391 354 ORDERED_HASHMAP_FOREACH(j, h, i) {
3f93da98
ZJS		 355 unsigned n;
356
357 for (n = 0; n < j->count; n++) {
358 Item *item = j->items + n;
359
360 if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
361 return item;
362 }
363 }
b8bb3e8f
LP		 364
365 return NULL;
366}
367
17b90525 368static void load_unix_sockets(void) {
7fd1b19b 369 _cleanup_fclose_ FILE *f = NULL;
f1ff734f 370 int r;
17b90525
LP		 371
372 if (unix_sockets)
373 return;
374
f1ff734f 375 /* We maintain a cache of the sockets we found in /proc/net/unix to speed things up a little. */
17b90525 376
548f6937
LP		 377 unix_sockets = set_new(&path_hash_ops);
378 if (!unix_sockets) {
379 log_oom();
17b90525 380 return;
548f6937 381 }
17b90525 382
fdcad0c2 383 f = fopen("/proc/net/unix", "re");
f1ff734f
LP		 384 if (!f) {
385 log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, errno,
386 "Failed to open /proc/net/unix, ignoring: %m");
387 goto fail;
388 }
17b90525 389
fdcad0c2 390 /* Skip header */
f1ff734f
LP		 391 r = read_line(f, LONG_LINE_MAX, NULL);
392 if (r < 0) {
393 log_warning_errno(r, "Failed to skip /proc/net/unix header line: %m");
394 goto fail;
395 }
396 if (r == 0) {
397 log_warning("Premature end of file reading /proc/net/unix.");
17b90525 398 goto fail;
f1ff734f 399 }
17b90525
LP		 400
401 for (;;) {
f1ff734f 402 _cleanup_free_ char *line = NULL;
17b90525 403 char *p, *s;
17b90525 404
f1ff734f
LP		 405 r = read_line(f, LONG_LINE_MAX, &line);
406 if (r < 0) {
407 log_warning_errno(r, "Failed to read /proc/net/unix line, ignoring: %m");
408 goto fail;
409 }
410 if (r == 0) /* EOF */
17b90525
LP		 411 break;
412
fdcad0c2
LP		 413 p = strchr(line, ':');
414 if (!p)
415 continue;
416
417 if (strlen(p) < 37)
17b90525
LP		 418 continue;
419
fdcad0c2 420 p += 37;
17b90525 421 p += strspn(p, WHITESPACE);
fdcad0c2 422 p += strcspn(p, WHITESPACE); /* skip one more word */
17b90525
LP		 423 p += strspn(p, WHITESPACE);
424
425 if (*p != '/')
426 continue;
427
fdcad0c2 428 s = strdup(p);
f1ff734f
LP		 429 if (!s) {
430 log_oom();
17b90525 431 goto fail;
f1ff734f 432 }
17b90525 433
858d36c1 434 path_simplify(s, false);
4ff21d85 435
f1ff734f
LP		 436 r = set_consume(unix_sockets, s);
437 if (r < 0 && r != -EEXIST) {
438 log_warning_errno(r, "Failed to add AF_UNIX socket to set, ignoring: %m");
ef42202a 439 goto fail;
f1ff734f 440 }
17b90525
LP		 441 }
442
443 return;
444
445fail:
f1ff734f 446 unix_sockets = set_free_free(unix_sockets);
17b90525
LP		 447}
448
449static bool unix_socket_alive(const char *fn) {
450 assert(fn);
451
452 load_unix_sockets();
453
454 if (unix_sockets)
455 return !!set_get(unix_sockets, (char*) fn);
456
457 /* We don't know, so assume yes */
458 return true;
459}
460
99d680ac 461static int dir_is_mount_point(DIR *d, const char *subdir) {
cde684a2 462
99d680ac
KS		 463 int mount_id_parent, mount_id;
464 int r_p, r;
465
cbfb8679 466 r_p = name_to_handle_at_loop(dirfd(d), ".", NULL, &mount_id_parent, 0);
99d680ac
KS		 467 if (r_p < 0)
468 r_p = -errno;
469
cbfb8679 470 r = name_to_handle_at_loop(dirfd(d), subdir, NULL, &mount_id, 0);
99d680ac
KS		 471 if (r < 0)
472 r = -errno;
473
474 /* got no handle; make no assumptions, return error */
475 if (r_p < 0 && r < 0)
476 return r_p;
477
478 /* got both handles; if they differ, it is a mount point */
479 if (r_p >= 0 && r >= 0)
480 return mount_id_parent != mount_id;
481
482 /* got only one handle; assume different mount points if one
483 * of both queries was not supported by the filesystem */
4c701096 484 if (IN_SET(r_p, -ENOSYS, -EOPNOTSUPP) || IN_SET(r, -ENOSYS, -EOPNOTSUPP))
99d680ac
KS		 485 return true;
486
487 /* return error */
488 if (r_p < 0)
489 return r_p;
490 return r;
491}
492
df99a9ef
ZJS		 493static DIR* xopendirat_nomod(int dirfd, const char *path) {
494 DIR *dir;
495
496 dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME);
1532227a
LP		 497 if (dir)
498 return dir;
499
500 log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path);
501 if (errno != EPERM)
502 return NULL;
503
504 dir = xopendirat(dirfd, path, O_NOFOLLOW);
505 if (!dir)
506 log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path);
df99a9ef
ZJS		 507
508 return dir;
509}
510
511static DIR* opendir_nomod(const char *path) {
512 return xopendirat_nomod(AT_FDCWD, path);
513}
514
3b63d2d3 515static int dir_cleanup(
78a92a5a 516 Item *i,
3b63d2d3
LP		 517 const char *p,
518 DIR *d,
519 const struct stat *ds,
520 usec_t cutoff,
521 dev_t rootdev,
522 bool mountpoint,
24f3a374 523 int maxdepth,
265ffa1e
LP		 524 bool keep_this_level) {
525
3b63d2d3
LP		 526 struct dirent *dent;
527 struct timespec times[2];
528 bool deleted = false;
3b63d2d3
LP		 529 int r = 0;
530
8fb3f009 531 FOREACH_DIRENT_ALL(dent, d, break) {
3b63d2d3
LP		 532 struct stat s;
533 usec_t age;
7fd1b19b 534 _cleanup_free_ char *sub_path = NULL;
3b63d2d3 535
49bfc877 536 if (dot_or_dot_dot(dent->d_name))
3b63d2d3 537 continue;
5008d581 538
3b63d2d3 539 if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
ca2f4176
KS		 540 if (errno == ENOENT)
541 continue;
5008d581 542
ca2f4176 543 /* FUSE, NFS mounts, SELinux might return EACCES */
ecc1709c
LP		 544 r = log_full_errno(errno == EACCES ? LOG_DEBUG : LOG_ERR, errno,
545 "stat(%s/%s) failed: %m", p, dent->d_name);
3b63d2d3
LP		 546 continue;
547 }
548
549 /* Stay on the same filesystem */
582deb84
ZJS		 550 if (s.st_dev != rootdev) {
551 log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name);
3b63d2d3 552 continue;
582deb84 553 }
3b63d2d3 554
99d680ac
KS		 555 /* Try to detect bind mounts of the same filesystem instance; they
556 * do not differ in device major/minors. This type of query is not
557 * supported on all kernels or filesystem types though. */
582deb84
ZJS		 558 if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) {
559 log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.",
560 p, dent->d_name);
99d680ac 561 continue;
582deb84 562 }
99d680ac 563
605405c6 564 sub_path = strjoin(p, "/", dent->d_name);
cde684a2 565 if (!sub_path) {
0d0f0c50 566 r = log_oom();
3b63d2d3
LP		 567 goto finish;
568 }
569
570 /* Is there an item configured for this path? */
ef43a391 571 if (ordered_hashmap_get(items, sub_path)) {
582deb84 572 log_debug("Ignoring \"%s\": a separate entry exists.", sub_path);
3b63d2d3 573 continue;
582deb84 574 }
3b63d2d3 575
582deb84
ZJS		 576 if (find_glob(globs, sub_path)) {
577 log_debug("Ignoring \"%s\": a separate glob exists.", sub_path);
b8bb3e8f 578 continue;
582deb84 579 }
b8bb3e8f 580
3b63d2d3
LP		 581 if (S_ISDIR(s.st_mode)) {
582
583 if (mountpoint &&
584 streq(dent->d_name, "lost+found") &&
582deb84
ZJS		 585 s.st_uid == 0) {
586 log_debug("Ignoring \"%s\".", sub_path);
3b63d2d3 587 continue;
582deb84 588 }
3b63d2d3
LP		 589
590 if (maxdepth <= 0)
582deb84 591 log_warning("Reached max depth on \"%s\".", sub_path);
3b63d2d3 592 else {
7fd1b19b 593 _cleanup_closedir_ DIR *sub_dir;
3b63d2d3
LP		 594 int q;
595
df99a9ef 596 sub_dir = xopendirat_nomod(dirfd(d), dent->d_name);
cde684a2 597 if (!sub_dir) {
582deb84
ZJS		 598 if (errno != ENOENT)
599 r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path);
3b63d2d3
LP		 600
601 continue;
602 }
603
78a92a5a 604 q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
3b63d2d3
LP		 605 if (q < 0)
606 r = q;
607 }
608
24f3a374
LP		 609 /* Note: if you are wondering why we don't
610 * support the sticky bit for excluding
611 * directories from cleaning like we do it for
612 * other file system objects: well, the sticky
613 * bit already has a meaning for directories,
614 * so we don't want to overload that. */
615
582deb84
ZJS		 616 if (keep_this_level) {
617 log_debug("Keeping \"%s\".", sub_path);
24f3a374 618 continue;
582deb84 619 }
24f3a374 620
3b63d2d3 621 /* Ignore ctime, we change it when deleting */
582deb84
ZJS		 622 age = timespec_load(&s.st_mtim);
623 if (age >= cutoff) {
624 char a[FORMAT_TIMESTAMP_MAX];
625 /* Follows spelling in stat(1). */
626 log_debug("Directory \"%s\": modify time %s is too new.",
627 sub_path,
628 format_timestamp_us(a, sizeof(a), age));
3b63d2d3 629 continue;
582deb84
ZJS		 630 }
631
632 age = timespec_load(&s.st_atim);
633 if (age >= cutoff) {
634 char a[FORMAT_TIMESTAMP_MAX];
635 log_debug("Directory \"%s\": access time %s is too new.",
636 sub_path,
637 format_timestamp_us(a, sizeof(a), age));
638 continue;
639 }
3b63d2d3 640
61253220
ZJS		 641 log_debug("Removing directory \"%s\".", sub_path);
642 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0)
920ce828
LP		 643 if (!IN_SET(errno, ENOENT, ENOTEMPTY))
644 r = log_error_errno(errno, "rmdir(%s): %m", sub_path);
3b63d2d3
LP		 645
646 } else {
9c73736d
LP		 647 /* Skip files for which the sticky bit is
648 * set. These are semantics we define, and are
649 * unknown elsewhere. See XDG_RUNTIME_DIR
650 * specification for details. */
582deb84
ZJS		 651 if (s.st_mode & S_ISVTX) {
652 log_debug("Skipping \"%s\": sticky bit set.", sub_path);
9c73736d 653 continue;
582deb84 654 }
9c73736d 655
582deb84 656 if (mountpoint && S_ISREG(s.st_mode))
1542c01b
ZJS		 657 if (s.st_uid == 0 && STR_IN_SET(dent->d_name,
658 ".journal",
659 "aquota.user",
660 "aquota.group")) {
582deb84 661 log_debug("Skipping \"%s\".", sub_path);
3b63d2d3 662 continue;
582deb84 663 }
3b63d2d3 664
17b90525 665 /* Ignore sockets that are listed in /proc/net/unix */
582deb84
ZJS		 666 if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) {
667 log_debug("Skipping \"%s\": live socket.", sub_path);
17b90525 668 continue;
582deb84 669 }
17b90525 670
78ab08eb 671 /* Ignore device nodes */
582deb84
ZJS		 672 if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) {
673 log_debug("Skipping \"%s\": a device.", sub_path);
78ab08eb 674 continue;
582deb84 675 }
78ab08eb 676
24f3a374
LP		 677 /* Keep files on this level around if this is
678 * requested */
582deb84
ZJS		 679 if (keep_this_level) {
680 log_debug("Keeping \"%s\".", sub_path);
24f3a374 681 continue;
582deb84 682 }
24f3a374 683
582deb84
ZJS		 684 age = timespec_load(&s.st_mtim);
685 if (age >= cutoff) {
686 char a[FORMAT_TIMESTAMP_MAX];
687 /* Follows spelling in stat(1). */
688 log_debug("File \"%s\": modify time %s is too new.",
689 sub_path,
690 format_timestamp_us(a, sizeof(a), age));
3b63d2d3 691 continue;
582deb84 692 }
3b63d2d3 693
582deb84
ZJS		 694 age = timespec_load(&s.st_atim);
695 if (age >= cutoff) {
696 char a[FORMAT_TIMESTAMP_MAX];
697 log_debug("File \"%s\": access time %s is too new.",
698 sub_path,
699 format_timestamp_us(a, sizeof(a), age));
700 continue;
701 }
3b63d2d3 702
582deb84
ZJS		 703 age = timespec_load(&s.st_ctim);
704 if (age >= cutoff) {
705 char a[FORMAT_TIMESTAMP_MAX];
706 log_debug("File \"%s\": change time %s is too new.",
707 sub_path,
708 format_timestamp_us(a, sizeof(a), age));
709 continue;
3b63d2d3
LP		 710 }
711
582deb84
ZJS		 712 log_debug("unlink \"%s\"", sub_path);
713
714 if (unlinkat(dirfd(d), dent->d_name, 0) < 0)
715 if (errno != ENOENT)
716 r = log_error_errno(errno, "unlink(%s): %m", sub_path);
717
3b63d2d3
LP		 718 deleted = true;
719 }
720 }
721
722finish:
723 if (deleted) {
582deb84
ZJS		 724 usec_t age1, age2;
725 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
726
3b63d2d3
LP		 727 /* Restore original directory timestamps */
728 times[0] = ds->st_atim;
729 times[1] = ds->st_mtim;
730
582deb84
ZJS		 731 age1 = timespec_load(&ds->st_atim);
732 age2 = timespec_load(&ds->st_mtim);
733 log_debug("Restoring access and modification time on \"%s\": %s, %s",
734 p,
735 format_timestamp_us(a, sizeof(a), age1),
736 format_timestamp_us(b, sizeof(b), age2));
3b63d2d3 737 if (futimens(dirfd(d), times) < 0)
56f64d95 738 log_error_errno(errno, "utimensat(%s): %m", p);
3b63d2d3
LP		 739 }
740
3b63d2d3
LP		 741 return r;
742}
743
5579f856
LP		 744static bool dangerous_hardlinks(void) {
745 _cleanup_free_ char *value = NULL;
746 static int cached = -1;
747 int r;
748
749 /* Check whether the fs.protected_hardlinks sysctl is on. If we can't determine it we assume its off, as that's
750 * what the upstream default is. */
751
752 if (cached >= 0)
753 return cached;
754
755 r = read_one_line_file("/proc/sys/fs/protected_hardlinks", &value);
756 if (r < 0) {
757 log_debug_errno(r, "Failed to read fs.protected_hardlinks sysctl: %m");
758 return true;
759 }
760
761 r = parse_boolean(value);
762 if (r < 0) {
763 log_debug_errno(r, "Failed to parse fs.protected_hardlinks sysctl: %m");
764 return true;
765 }
766
767 cached = r == 0;
768 return cached;
769}
770
774f79b5 771static bool hardlink_vulnerable(const struct stat *st) {
5579f856
LP		 772 assert(st);
773
774 return !S_ISDIR(st->st_mode) && st->st_nlink > 1 && dangerous_hardlinks();
775}
776
936f6bdb
FB		 777static int fd_set_perms(Item *i, int fd, const struct stat *st) {
778 _cleanup_free_ char *path = NULL;
779 int r;
1924a97d 780
cde684a2 781 assert(i);
936f6bdb 782 assert(fd);
780e2ee1 783
936f6bdb
FB		 784 r = fd_get_path(fd, &path);
785 if (r < 0)
780e2ee1 786 return r;
48b8aaa8 787
936f6bdb
FB		 788 if (!i->mode_set && !i->uid_set && !i->gid_set)
789 goto shortcut;
1924a97d 790
936f6bdb 791 if (hardlink_vulnerable(st)) {
5579f856
LP		 792 log_error("Refusing to set permissions on hardlinked file %s while the fs.protected_hardlinks sysctl is turned off.", path);
793 return -EPERM;
794 }
795
51207ca1 796 if (i->mode_set) {
936f6bdb 797 if (S_ISLNK(st->st_mode))
51207ca1
LP		 798 log_debug("Skipping mode fix for symlink %s.", path);
799 else {
48b8aaa8
LP		 800 mode_t m = i->mode;
801
802 if (i->mask_perms) {
936f6bdb 803 if (!(st->st_mode & 0111))
48b8aaa8 804 m &= ~0111;
936f6bdb 805 if (!(st->st_mode & 0222))
7d6884b6 806 m &= ~0222;
936f6bdb 807 if (!(st->st_mode & 0444))
48b8aaa8 808 m &= ~0444;
936f6bdb 809 if (!S_ISDIR(st->st_mode))
48b8aaa8
LP		 810 m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */
811 }
abef3f91 812
936f6bdb
FB		 813 if (m == (st->st_mode & 07777))
814 log_debug("\"%s\" has correct mode %o already.", path, st->st_mode);
48b8aaa8 815 else {
51207ca1 816 log_debug("Changing \"%s\" to mode %o.", path, m);
4dfaa528
FB		 817 if (fchmod_opath(fd, m) < 0)
818 return log_error_errno(errno, "fchmod() of %s failed: %m", path);
48b8aaa8 819 }
062e01bb 820 }
51207ca1 821 }
062e01bb 822
936f6bdb
FB		 823 if ((i->uid_set && i->uid != st->st_uid) ||
824 (i->gid_set && i->gid != st->st_gid)) {
51207ca1
LP		 825 log_debug("Changing \"%s\" to owner "UID_FMT":"GID_FMT,
826 path,
827 i->uid_set ? i->uid : UID_INVALID,
828 i->gid_set ? i->gid : GID_INVALID);
829
936f6bdb
FB		 830 if (fchownat(fd,
831 "",
832 i->uid_set ? i->uid : UID_INVALID,
833 i->gid_set ? i->gid : GID_INVALID,
834 AT_EMPTY_PATH) < 0)
835 return log_error_errno(errno, "fchownat() of %s failed: %m", path);
582deb84 836 }
062e01bb 837
59793c8f 838shortcut:
08c84981 839 return label_fix(path, 0);
062e01bb
MS		 840}
841
936f6bdb
FB		 842static int path_set_perms(Item *i, const char *path) {
843 _cleanup_close_ int fd = -1;
844 struct stat st;
845
846 assert(i);
847 assert(path);
848
849 fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH);
850 if (fd < 0) {
851 int level = LOG_ERR, r = -errno;
852
853 /* Option "e" operates only on existing objects. Do not
854 * print errors about non-existent files or directories */
855 if (i->type == EMPTY_DIRECTORY && errno == ENOENT) {
856 level = LOG_DEBUG;
857 r = 0;
858 }
859
860 log_full_errno(level, errno, "Adjusting owner and mode for %s failed: %m", path);
861 return r;
862 }
863
864 if (fstat(fd, &st) < 0)
865 return log_error_errno(errno, "Failed to fstat() file %s: %m", path);
866
d460ba18
FB		 867 if (i->type == EMPTY_DIRECTORY && !S_ISDIR(st.st_mode))
868 return log_error_errno(EEXIST, "'%s' already exists and is not a directory. ", path);
869
936f6bdb
FB		 870 return fd_set_perms(i, fd, &st);
871}
872
bd550f78 873static int parse_xattrs_from_arg(Item *i) {
ebf4e801
MW		 874 const char *p;
875 int r;
876
877 assert(i);
505ef0e3 878 assert(i->argument);
ebf4e801 879
ebf4e801
MW		 880 p = i->argument;
881
4034a06d 882 for (;;) {
4cef1923 883 _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL;
4034a06d 884
12ba2c44 885 r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE);
4034a06d 886 if (r < 0)
bd550f78 887 log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p);
4034a06d
LP		 888 if (r <= 0)
889 break;
505ef0e3 890
4cef1923 891 r = split_pair(xattr, "=", &name, &value);
ebf4e801 892 if (r < 0) {
4034a06d 893 log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr);
ebf4e801
MW		 894 continue;
895 }
505ef0e3 896
4034a06d 897 if (isempty(name) || isempty(value)) {
bd550f78 898 log_warning("Malformed extended attribute found, ignoring: %s", xattr);
ebf4e801
MW		 899 continue;
900 }
505ef0e3 901
4034a06d 902 if (strv_push_pair(&i->xattrs, name, value) < 0)
ebf4e801 903 return log_oom();
505ef0e3 904
4034a06d 905 name = value = NULL;
ebf4e801
MW		 906 }
907
4034a06d 908 return 0;
ebf4e801
MW		 909}
910
936f6bdb 911static int fd_set_xattrs(Item *i, int fd, const struct stat *st) {
34d26777 912 char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
936f6bdb 913 _cleanup_free_ char *path = NULL;
ebf4e801 914 char **name, **value;
936f6bdb 915 int r;
ebf4e801
MW		 916
917 assert(i);
936f6bdb
FB		 918 assert(fd);
919
920 r = fd_get_path(fd, &path);
921 if (r < 0)
922 return r;
923
924 xsprintf(procfs_path, "/proc/self/fd/%i", fd);
ebf4e801 925
ebf4e801 926 STRV_FOREACH_PAIR(name, value, i->xattrs) {
bd550f78 927 log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path);
936f6bdb 928 if (setxattr(procfs_path, *name, *value, strlen(*value), 0) < 0)
25f027c5
ZJS		 929 return log_error_errno(errno, "Setting extended attribute %s=%s on %s failed: %m",
930 *name, *value, path);
ebf4e801
MW		 931 }
932 return 0;
933}
934
936f6bdb
FB		 935static int path_set_xattrs(Item *i, const char *path) {
936 _cleanup_close_ int fd = -1;
937
938 assert(i);
939 assert(path);
940
941 fd = open(path, O_CLOEXEC|O_NOFOLLOW|O_PATH);
942 if (fd < 0)
943 return log_error_errno(errno, "Cannot open '%s': %m", path);
944
945 return fd_set_xattrs(i, fd, NULL);
946}
947
bd550f78 948static int parse_acls_from_arg(Item *item) {
349cc4a5 949#if HAVE_ACL
f8eeeaf9 950 int r;
f8eeeaf9
ZJS		 951
952 assert(item);
953
50d9e46d
ZJS		 954 /* If force (= modify) is set, we will not modify the acl
955 * afterwards, so the mask can be added now if necessary. */
bd550f78 956
50d9e46d 957 r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force);
f8eeeaf9 958 if (r < 0)
4034a06d 959 log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument);
f8eeeaf9
ZJS		 960#else
961 log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring");
962#endif
963
964 return 0;
965}
966
349cc4a5 967#if HAVE_ACL
48b8aaa8
LP		 968static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) {
969 _cleanup_(acl_free_charpp) char *t = NULL;
dd4105b0 970 _cleanup_(acl_freep) acl_t dup = NULL;
50d9e46d
ZJS		 971 int r;
972
d873e877
HPD		 973 /* Returns 0 for success, positive error if already warned,
974 * negative error otherwise. */
975
50d9e46d 976 if (modify) {
dd4105b0 977 r = acls_for_file(path, type, acl, &dup);
50d9e46d
ZJS		 978 if (r < 0)
979 return r;
50d9e46d 980
dd4105b0
ZJS		 981 r = calc_acl_mask_if_needed(&dup);
982 if (r < 0)
983 return r;
984 } else {
985 dup = acl_dup(acl);
986 if (!dup)
987 return -errno;
988
989 /* the mask was already added earlier if needed */
990 }
991
992 r = add_base_acls_if_needed(&dup, path);
993 if (r < 0)
994 return r;
995
582deb84 996 t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE);
48b8aaa8 997 log_debug("Setting %s ACL %s on %s.",
582deb84 998 type == ACL_TYPE_ACCESS ? "access" : "default",
48b8aaa8 999 strna(t), pretty);
50d9e46d 1000
582deb84
ZJS		 1001 r = acl_set_file(path, type, dup);
1002 if (r < 0)
3ea40b78
LP		 1003 /* Return positive to indicate we already warned */
1004 return -log_error_errno(errno,
1005 "Setting %s ACL \"%s\" on %s failed: %m",
1006 type == ACL_TYPE_ACCESS ? "access" : "default",
48b8aaa8 1007 strna(t), pretty);
d873e877 1008
582deb84 1009 return 0;
50d9e46d 1010}
35888b67 1011#endif
50d9e46d 1012
936f6bdb 1013static int fd_set_acls(Item *item, int fd, const struct stat *st) {
d873e877 1014 int r = 0;
349cc4a5 1015#if HAVE_ACL
34d26777 1016 char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
936f6bdb 1017 _cleanup_free_ char *path = NULL;
48b8aaa8 1018
f8eeeaf9 1019 assert(item);
936f6bdb
FB		 1020 assert(fd);
1021 assert(st);
48b8aaa8 1022
936f6bdb
FB		 1023 r = fd_get_path(fd, &path);
1024 if (r < 0)
1025 return r;
48b8aaa8 1026
936f6bdb 1027 if (hardlink_vulnerable(st)) {
5579f856
LP		 1028 log_error("Refusing to set ACLs on hardlinked file %s while the fs.protected_hardlinks sysctl is turned off.", path);
1029 return -EPERM;
1030 }
1031
936f6bdb 1032 if (S_ISLNK(st->st_mode)) {
48b8aaa8
LP		 1033 log_debug("Skipping ACL fix for symlink %s.", path);
1034 return 0;
1035 }
1036
936f6bdb 1037 xsprintf(procfs_path, "/proc/self/fd/%i", fd);
48b8aaa8 1038
d873e877 1039 if (item->acl_access)
936f6bdb 1040 r = path_set_acl(procfs_path, path, ACL_TYPE_ACCESS, item->acl_access, item->force);
f8eeeaf9 1041
d873e877 1042 if (r == 0 && item->acl_default)
936f6bdb 1043 r = path_set_acl(procfs_path, path, ACL_TYPE_DEFAULT, item->acl_default, item->force);
f8eeeaf9 1044
d873e877
HPD		 1045 if (r > 0)
1046 return -r; /* already warned */
936f6bdb 1047 if (r == -EOPNOTSUPP) {
d873e877
HPD		 1048 log_debug_errno(r, "ACLs not supported by file system at %s", path);
1049 return 0;
936f6bdb
FB		 1050 }
1051 if (r < 0)
1052 return log_error_errno(r, "ACL operation on \"%s\" failed: %m", path);
d873e877
HPD		 1053#endif
1054 return r;
f8eeeaf9
ZJS		 1055}
1056
936f6bdb
FB		 1057static int path_set_acls(Item *item, const char *path) {
1058 int r = 0;
1059#ifdef HAVE_ACL
1060 _cleanup_close_ int fd = -1;
1061 struct stat st;
1062
1063 assert(item);
1064 assert(path);
1065
1066 fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH);
1067 if (fd < 0)
1068 return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path);
1069
1070 if (fstat(fd, &st) < 0)
1071 return log_error_errno(errno, "Failed to fstat() file %s: %m", path);
1072
1073 r = fd_set_acls(item, fd, &st);
1074 #endif
1075 return r;
1076 }
1077
88ec4dfa
LP		 1078#define ATTRIBUTES_ALL \
1079 (FS_NOATIME_FL | \
1080 FS_SYNC_FL | \
1081 FS_DIRSYNC_FL | \
1082 FS_APPEND_FL | \
1083 FS_COMPR_FL | \
1084 FS_NODUMP_FL | \
1085 FS_EXTENT_FL | \
1086 FS_IMMUTABLE_FL | \
1087 FS_JOURNAL_DATA_FL | \
1088 FS_SECRM_FL | \
1089 FS_UNRM_FL | \
1090 FS_NOTAIL_FL | \
1091 FS_TOPDIR_FL | \
1092 FS_NOCOW_FL)
1093
bd550f78 1094static int parse_attribute_from_arg(Item *item) {
88ec4dfa
LP		 1095
1096 static const struct {
1097 char character;
1098 unsigned value;
1099 } attributes[] = {
1100 { 'A', FS_NOATIME_FL }, /* do not update atime */
1101 { 'S', FS_SYNC_FL }, /* Synchronous updates */
1102 { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */
1103 { 'a', FS_APPEND_FL }, /* writes to file may only append */
1104 { 'c', FS_COMPR_FL }, /* Compress file */
1105 { 'd', FS_NODUMP_FL }, /* do not dump file */
8c35b2ca 1106 { 'e', FS_EXTENT_FL }, /* Extents */
88ec4dfa
LP		 1107 { 'i', FS_IMMUTABLE_FL }, /* Immutable file */
1108 { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */
1109 { 's', FS_SECRM_FL }, /* Secure deletion */
1110 { 'u', FS_UNRM_FL }, /* Undelete */
1111 { 't', FS_NOTAIL_FL }, /* file tail should not be merged */
13e785f7 1112 { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies */
88ec4dfa 1113 { 'C', FS_NOCOW_FL }, /* Do not cow file */
22c3a6ca 1114 };
88ec4dfa 1115
22c3a6ca
GB		 1116 enum {
1117 MODE_ADD,
1118 MODE_DEL,
1119 MODE_SET
1120 } mode = MODE_ADD;
22c3a6ca 1121
88ec4dfa
LP		 1122 unsigned value = 0, mask = 0;
1123 const char *p;
22c3a6ca 1124
88ec4dfa
LP		 1125 assert(item);
1126
1127 p = item->argument;
1128 if (p) {
1129 if (*p == '+') {
1130 mode = MODE_ADD;
1131 p++;
1132 } else if (*p == '-') {
1133 mode = MODE_DEL;
1134 p++;
1135 } else if (*p == '=') {
1136 mode = MODE_SET;
1137 p++;
1138 }
22c3a6ca
GB		 1139 }
1140
88ec4dfa
LP		 1141 if (isempty(p) && mode != MODE_SET) {
1142 log_error("Setting file attribute on '%s' needs an attribute specification.", item->path);
22c3a6ca
GB		 1143 return -EINVAL;
1144 }
88ec4dfa
LP		 1145
1146 for (; p && *p ; p++) {
1147 unsigned i, v;
1148
1149 for (i = 0; i < ELEMENTSOF(attributes); i++)
1150 if (*p == attributes[i].character)
1151 break;
1152
1153 if (i >= ELEMENTSOF(attributes)) {
1154 log_error("Unknown file attribute '%c' on '%s'.", *p, item->path);
22c3a6ca
GB		 1155 return -EINVAL;
1156 }
88ec4dfa
LP		 1157
1158 v = attributes[i].value;
1159
3742095b 1160 SET_FLAG(value, v, IN_SET(mode, MODE_ADD, MODE_SET));
88ec4dfa
LP		 1161
1162 mask |= v;
22c3a6ca
GB		 1163 }
1164
1165 if (mode == MODE_SET)
88ec4dfa 1166 mask |= ATTRIBUTES_ALL;
22c3a6ca 1167
88ec4dfa 1168 assert(mask != 0);
22c3a6ca 1169
88ec4dfa
LP		 1170 item->attribute_mask = mask;
1171 item->attribute_value = value;
1172 item->attribute_set = true;
22c3a6ca
GB		 1173
1174 return 0;
22c3a6ca
GB		 1175}
1176
936f6bdb 1177static int fd_set_attribute(Item *item, int fd, const struct stat *st) {
936f6bdb
FB		 1178 _cleanup_close_ int procfs_fd = -1;
1179 _cleanup_free_ char *path = NULL;
88ec4dfa
LP		 1180 unsigned f;
1181 int r;
22c3a6ca 1182
88ec4dfa 1183 if (!item->attribute_set || item->attribute_mask == 0)
22c3a6ca 1184 return 0;
22c3a6ca 1185
936f6bdb
FB		 1186 r = fd_get_path(fd, &path);
1187 if (r < 0)
1188 return r;
88ec4dfa
LP		 1189
1190 /* Issuing the file attribute ioctls on device nodes is not
1191 * safe, as that will be delivered to the drivers, not the
1192 * file system containing the device node. */
936f6bdb 1193 if (!S_ISREG(st->st_mode) && !S_ISDIR(st->st_mode)) {
88ec4dfa
LP		 1194 log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path);
1195 return -EINVAL;
1196 }
1197
1198 f = item->attribute_value & item->attribute_mask;
1199
1200 /* Mask away directory-specific flags */
936f6bdb 1201 if (!S_ISDIR(st->st_mode))
22c3a6ca 1202 f &= ~FS_DIRSYNC_FL;
88ec4dfa 1203
f2324783 1204 procfs_fd = fd_reopen(fd, O_RDONLY|O_CLOEXEC|O_NOATIME);
936f6bdb
FB		 1205 if (procfs_fd < 0)
1206 return -errno;
1207
1208 r = chattr_fd(procfs_fd, f, item->attribute_mask);
22c3a6ca 1209 if (r < 0)
4c701096 1210 log_full_errno(IN_SET(r, -ENOTTY, -EOPNOTSUPP) ? LOG_DEBUG : LOG_WARNING,
ad75a97f
LP		 1211 r,
1212 "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m",
1213 path, item->attribute_value, item->attribute_mask);
22c3a6ca
GB		 1214
1215 return 0;
1216}
1217
936f6bdb
FB		 1218static int path_set_attribute(Item *item, const char *path) {
1219 _cleanup_close_ int fd = -1;
1220 struct stat st;
1221
1222 if (!item->attribute_set || item->attribute_mask == 0)
1223 return 0;
1224
1225 fd = open(path, O_CLOEXEC|O_NOFOLLOW|O_PATH);
1226 if (fd < 0)
1227 return log_error_errno(errno, "Cannot open '%s': %m", path);
1228
1229 if (fstat(fd, &st) < 0)
1230 return log_error_errno(errno, "Cannot stat '%s': %m", path);
1231
1232 return fd_set_attribute(item, fd, &st);
1233}
1234
d4e9eb91 1235static int write_one_file(Item *i, const char *path) {
43ad6e31
LP		 1236 _cleanup_close_ int fd = -1;
1237 int flags, r = 0;
d4e9eb91 1238 struct stat st;
d4e9eb91 1239
874f1947
LP		 1240 assert(i);
1241 assert(path);
1242
49e87292 1243 flags = i->type == CREATE_FILE ? O_CREAT|O_EXCL|O_NOFOLLOW :
43ad6e31 1244 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0;
d4e9eb91 1245
43ad6e31 1246 RUN_WITH_UMASK(0000) {
ecabcf8b 1247 mac_selinux_create_file_prepare(path, S_IFREG);
669fc4e5 1248 fd = open(path, flags|O_NONBLOCK|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode);
ecabcf8b 1249 mac_selinux_create_file_clear();
5c0d398d 1250 }
d4e9eb91
DR		 1251
1252 if (fd < 0) {
582deb84 1253 if (i->type == WRITE_FILE && errno == ENOENT) {
49e87292 1254 log_debug_errno(errno, "Not writing missing file \"%s\": %m", path);
d4e9eb91 1255 return 0;
582deb84 1256 }
49e87292
LP		 1257 if (i->type == CREATE_FILE && errno == EEXIST) {
1258 log_debug_errno(errno, "Not writing to pre-existing file \"%s\": %m", path);
1259 goto done;
1260 }
d4e9eb91 1261
f44b28fd
MO		 1262 r = -errno;
1263 if (!i->argument && errno == EROFS && stat(path, &st) == 0 &&
1264 (i->type == CREATE_FILE || st.st_size == 0))
1265 goto check_mode;
1266
1267 return log_error_errno(r, "Failed to create file %s: %m", path);
d4e9eb91
DR		 1268 }
1269
1270 if (i->argument) {
4034a06d 1271 log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path);
d4e9eb91 1272
4cef1923 1273 r = loop_write(fd, i->argument, strlen(i->argument), false);
582deb84
ZJS		 1274 if (r < 0)
1275 return log_error_errno(r, "Failed to write file \"%s\": %m", path);
1276 } else
1277 log_debug("\"%s\" has been created.", path);
d4e9eb91 1278
43ad6e31 1279 fd = safe_close(fd);
3612fbc1 1280
bb9947be 1281 done:
4a62c710
MS		 1282 if (stat(path, &st) < 0)
1283 return log_error_errno(errno, "stat(%s) failed: %m", path);
d4e9eb91 1284
f44b28fd 1285 check_mode:
d4e9eb91
DR		 1286 if (!S_ISREG(st.st_mode)) {
1287 log_error("%s is not a file.", path);
1288 return -EEXIST;
1289 }
1290
b705ab6a 1291 r = path_set_perms(i, path);
d4e9eb91
DR		 1292 if (r < 0)
1293 return r;
1294
1295 return 0;
1296}
1297
081043cf 1298typedef int (*action_t)(Item *, const char *);
936f6bdb 1299typedef int (*fdaction_t)(Item *, int fd, const struct stat *st);
081043cf 1300
936f6bdb
FB		 1301static int item_do(Item *i, int fd, const struct stat *st, fdaction_t action) {
1302 int r = 0, q;
e73a03e0
LP		 1303
1304 assert(i);
936f6bdb
FB		 1305 assert(fd >= 0);
1306 assert(st);
a8d88783
MS		 1307
1308 /* This returns the first error we run into, but nevertheless
1309 * tries to go on */
936f6bdb 1310 r = action(i, fd, st);
a8d88783 1311
936f6bdb 1312 if (S_ISDIR(st->st_mode)) {
22dd8d35 1313 char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
936f6bdb
FB		 1314 _cleanup_closedir_ DIR *d = NULL;
1315 struct dirent *de;
a8d88783 1316
936f6bdb
FB		 1317 /* The passed 'fd' was opened with O_PATH. We need to convert
1318 * it into a 'regular' fd before reading the directory content. */
1319 xsprintf(procfs_path, "/proc/self/fd/%i", fd);
a8d88783 1320
936f6bdb
FB		 1321 d = opendir(procfs_path);
1322 if (!d) {
1323 r = r ?: -errno;
1324 goto finish;
1325 }
a8d88783 1326
936f6bdb
FB		 1327 FOREACH_DIRENT_ALL(de, d, q = -errno; goto finish) {
1328 struct stat de_st;
1329 int de_fd;
a8d88783 1330
936f6bdb
FB		 1331 if (dot_or_dot_dot(de->d_name))
1332 continue;
1333
1334 de_fd = openat(fd, de->d_name, O_NOFOLLOW|O_CLOEXEC|O_PATH);
1335 if (de_fd >= 0 && fstat(de_fd, &de_st) >= 0)
1336 /* pass ownership of dirent fd over */
1337 q = item_do(i, de_fd, &de_st, action);
1338 else
1339 q = -errno;
a8d88783 1340
e73a03e0
LP		 1341 if (q < 0 && r == 0)
1342 r = q;
a8d88783 1343 }
a8d88783 1344 }
936f6bdb
FB		 1345finish:
1346 safe_close(fd);
e73a03e0 1347 return r;
a8d88783
MS		 1348}
1349
936f6bdb 1350static int glob_item(Item *i, action_t action) {
df99a9ef 1351 _cleanup_globfree_ glob_t g = {
ebf31a1f 1352 .gl_opendir = (void *(*)(const char *)) opendir_nomod,
df99a9ef 1353 };
e73a03e0 1354 int r = 0, k;
99e68c0b
MS		 1355 char **fn;
1356
84e72b5e
ZJS		 1357 k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g);
1358 if (k < 0 && k != -ENOENT)
1359 return log_error_errno(k, "glob(%s) failed: %m", i->path);
99e68c0b 1360
c84a9488
ZJS		 1361 STRV_FOREACH(fn, g.gl_pathv) {
1362 k = action(i, *fn);
e73a03e0 1363 if (k < 0 && r == 0)
99e68c0b 1364 r = k;
936f6bdb
FB		 1365 }
1366
1367 return r;
1368}
081043cf 1369
936f6bdb
FB		 1370static int glob_item_recursively(Item *i, fdaction_t action) {
1371 _cleanup_globfree_ glob_t g = {
1372 .gl_opendir = (void *(*)(const char *)) opendir_nomod,
1373 };
1374 int r = 0, k;
1375 char **fn;
1376
1377 k = safe_glob(i->path, GLOB_NOSORT|GLOB_BRACE, &g);
1378 if (k < 0 && k != -ENOENT)
1379 return log_error_errno(k, "glob(%s) failed: %m", i->path);
1380
1381 STRV_FOREACH(fn, g.gl_pathv) {
1382 _cleanup_close_ int fd = -1;
1383 struct stat st;
1384
1385 /* Make sure we won't trigger/follow file object (such as
1386 * device nodes, automounts, ...) pointed out by 'fn' with
1387 * O_PATH. Note, when O_PATH is used, flags other than
1388 * O_CLOEXEC, O_DIRECTORY, and O_NOFOLLOW are ignored. */
1389
1390 fd = open(*fn, O_CLOEXEC|O_NOFOLLOW|O_PATH);
1391 if (fd < 0) {
1392 r = r ?: -errno;
1393 continue;
1394 }
1395
1396 if (fstat(fd, &st) < 0) {
1397 r = r ?: -errno;
1398 continue;
081043cf 1399 }
936f6bdb
FB		 1400
1401 k = item_do(i, fd, &st, action);
1402 if (k < 0 && r == 0)
1403 r = k;
1404
1405 /* we passed fd ownership to the previous call */
1406 fd = -1;
c84a9488 1407 }
99e68c0b 1408
99e68c0b
MS		 1409 return r;
1410}
1411
294929f8
ZJS		 1412typedef enum {
1413 CREATION_NORMAL,
1414 CREATION_EXISTING,
1415 CREATION_FORCE,
7a7d5db7
LP		 1416 _CREATION_MODE_MAX,
1417 _CREATION_MODE_INVALID = -1
294929f8
ZJS		 1418} CreationMode;
1419
7a7d5db7
LP		 1420static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = {
1421 [CREATION_NORMAL] = "Created",
1422 [CREATION_EXISTING] = "Found existing",
1423 [CREATION_FORCE] = "Created replacement",
1424};
1425
1426DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode);
294929f8 1427
3b63d2d3 1428static int create_item(Item *i) {
3b63d2d3 1429 struct stat st;
df28bc08 1430 int r = 0;
114a17d2 1431 int q = 0;
294929f8 1432 CreationMode creation;
5008d581 1433
3b63d2d3 1434 assert(i);
5008d581 1435
582deb84
ZJS		 1436 log_debug("Running create action for entry %c %s", (char) i->type, i->path);
1437
3b63d2d3
LP		 1438 switch (i->type) {
1439
1440 case IGNORE_PATH:
78a92a5a 1441 case IGNORE_DIRECTORY_PATH:
3b63d2d3
LP		 1442 case REMOVE_PATH:
1443 case RECURSIVE_REMOVE_PATH:
1444 return 0;
5008d581 1445
3b63d2d3 1446 case CREATE_FILE:
31ed59c5 1447 case TRUNCATE_FILE:
7fa10748
LP		 1448 RUN_WITH_UMASK(0000)
1449 (void) mkdir_parents_label(i->path, 0755);
1450
1845fdd9
DR		 1451 r = write_one_file(i, i->path);
1452 if (r < 0)
1453 return r;
1454 break;
265ffa1e 1455
7b887f22 1456 case COPY_FILES:
7fa10748
LP		 1457 RUN_WITH_UMASK(0000)
1458 (void) mkdir_parents_label(i->path, 0755);
1459
4cef1923 1460 log_debug("Copying tree \"%s\" to \"%s\".", i->argument, i->path);
7fa10748
LP		 1461 r = copy_tree(i->argument, i->path,
1462 i->uid_set ? i->uid : UID_INVALID,
1463 i->gid_set ? i->gid : GID_INVALID,
1464 COPY_REFLINK);
f44b28fd
MO		 1465
1466 if (r == -EROFS && stat(i->path, &st) == 0)
1467 r = -EEXIST;
1468
849958d1 1469 if (r < 0) {
e156347e
LP		 1470 struct stat a, b;
1471
8d3d7072
MS		 1472 if (r != -EEXIST)
1473 return log_error_errno(r, "Failed to copy files to %s: %m", i->path);
e156347e 1474
4cef1923
FB		 1475 if (stat(i->argument, &a) < 0)
1476 return log_error_errno(errno, "stat(%s) failed: %m", i->argument);
e156347e 1477
4a62c710
MS		 1478 if (stat(i->path, &b) < 0)
1479 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
e156347e
LP		 1480
1481 if ((a.st_mode ^ b.st_mode) & S_IFMT) {
1482 log_debug("Can't copy to %s, file exists already and is of different type", i->path);
1483 return 0;
1484 }
849958d1
LP		 1485 }
1486
b705ab6a 1487 r = path_set_perms(i, i->path);
849958d1
LP		 1488 if (r < 0)
1489 return r;
1490
1491 break;
1492
d4e9eb91 1493 case WRITE_FILE:
936f6bdb 1494 r = glob_item(i, write_one_file);
f05bc3f7
MS		 1495 if (r < 0)
1496 return r;
5008d581 1497
3b63d2d3
LP		 1498 break;
1499
3b63d2d3 1500 case CREATE_DIRECTORY:
d7b8eec7
LP		 1501 case TRUNCATE_DIRECTORY:
1502 case CREATE_SUBVOLUME:
5fb13eb5
LP		 1503 case CREATE_SUBVOLUME_INHERIT_QUOTA:
1504 case CREATE_SUBVOLUME_NEW_QUOTA:
d7b8eec7 1505 RUN_WITH_UMASK(0000)
7fa10748 1506 (void) mkdir_parents_label(i->path, 0755);
d7b8eec7 1507
5fb13eb5 1508 if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) {
2904e949 1509
945403e6 1510 if (btrfs_is_subvol(empty_to_root(arg_root)) <= 0)
2904e949
LP		 1511
1512 /* Don't create a subvolume unless the
1513 * root directory is one, too. We do
1514 * this under the assumption that if
1515 * the root directory is just a plain
1516 * directory (i.e. very light-weight),
1517 * we shouldn't try to split it up
1518 * into subvolumes (i.e. more
1519 * heavy-weight). Thus, chroot()
1520 * environments and suchlike will get
1521 * a full brtfs subvolume set up below
1522 * their tree only if they
1523 * specifically set up a btrfs
1524 * subvolume for the root dir too. */
1525
1526 r = -ENOTTY;
1527 else {
1528 RUN_WITH_UMASK((~i->mode) & 0777)
1529 r = btrfs_subvol_make(i->path);
1530 }
5fb13eb5 1531 } else
d7b8eec7
LP		 1532 r = 0;
1533
582deb84 1534 if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY)
d7b8eec7
LP		 1535 RUN_WITH_UMASK(0000)
1536 r = mkdir_label(i->path, i->mode);
5008d581 1537
e156347e 1538 if (r < 0) {
7b135a73 1539 int k;
5008d581 1540
4c701096 1541 if (!IN_SET(r, -EEXIST, -EROFS))
7b135a73 1542 return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path);
5008d581 1543
7b135a73
LP		 1544 k = is_dir(i->path, false);
1545 if (k == -ENOENT && r == -EROFS)
1546 return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path);
1547 if (k < 0)
1548 return log_error_errno(k, "Failed to check if %s exists: %m", i->path);
1549 if (!k) {
1550 log_warning("\"%s\" already exists and is not a directory.", i->path);
e156347e
LP		 1551 return 0;
1552 }
294929f8
ZJS		 1553
1554 creation = CREATION_EXISTING;
1555 } else
1556 creation = CREATION_NORMAL;
7b135a73 1557
7a7d5db7 1558 log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path);
5008d581 1559
5fb13eb5
LP		 1560 if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) {
1561 r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA);
114a17d2 1562 if (r == -ENOTTY)
022ffe4c 1563 log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (unsupported fs or dir not a subvolume): %m", i->path);
114a17d2 1564 else if (r == -EROFS)
022ffe4c 1565 log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (fs is read-only).", i->path);
114a17d2 1566 else if (r == -ENOPROTOOPT)
022ffe4c 1567 log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (quota support is disabled).", i->path);
114a17d2
EV		 1568 else if (r < 0)
1569 q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path);
1570 else if (r > 0)
5fb13eb5 1571 log_debug("Adjusted quota for subvolume \"%s\".", i->path);
114a17d2 1572 else if (r == 0)
5fb13eb5
LP		 1573 log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path);
1574 }
1575
4831981d 1576 _fallthrough_;
df8dee85 1577 case EMPTY_DIRECTORY:
939ca213 1578 r = glob_item(i, path_set_perms);
114a17d2
EV		 1579 if (q < 0)
1580 return q;
f05bc3f7
MS		 1581 if (r < 0)
1582 return r;
3b63d2d3
LP		 1583
1584 break;
ee17ee7c
LP		 1585
1586 case CREATE_FIFO:
5c0d398d 1587 RUN_WITH_UMASK(0000) {
7fa10748
LP		 1588 (void) mkdir_parents_label(i->path, 0755);
1589
ecabcf8b 1590 mac_selinux_create_file_prepare(i->path, S_IFIFO);
5c0d398d 1591 r = mkfifo(i->path, i->mode);
ecabcf8b 1592 mac_selinux_create_file_clear();
5c0d398d 1593 }
ee17ee7c 1594
1554afae 1595 if (r < 0) {
4a62c710
MS		 1596 if (errno != EEXIST)
1597 return log_error_errno(errno, "Failed to create fifo %s: %m", i->path);
ee17ee7c 1598
a542c4dc 1599 if (lstat(i->path, &st) < 0)
4a62c710 1600 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
ee17ee7c 1601
1554afae
LP		 1602 if (!S_ISFIFO(st.st_mode)) {
1603
1604 if (i->force) {
1554afae 1605 RUN_WITH_UMASK(0000) {
ecabcf8b 1606 mac_selinux_create_file_prepare(i->path, S_IFIFO);
1554afae 1607 r = mkfifo_atomic(i->path, i->mode);
ecabcf8b 1608 mac_selinux_create_file_clear();
1554afae
LP		 1609 }
1610
f647962d
MS		 1611 if (r < 0)
1612 return log_error_errno(r, "Failed to create fifo %s: %m", i->path);
294929f8 1613 creation = CREATION_FORCE;
1554afae 1614 } else {
a542c4dc 1615 log_warning("\"%s\" already exists and is not a fifo.", i->path);
1554afae
LP		 1616 return 0;
1617 }
294929f8
ZJS		 1618 } else
1619 creation = CREATION_EXISTING;
1620 } else
1621 creation = CREATION_NORMAL;
7a7d5db7 1622 log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path);
ee17ee7c 1623
b705ab6a 1624 r = path_set_perms(i, i->path);
f05bc3f7
MS		 1625 if (r < 0)
1626 return r;
ee17ee7c
LP		 1627
1628 break;
a8d88783 1629
5c5ccf12 1630 case CREATE_SYMLINK: {
7fa10748
LP		 1631 RUN_WITH_UMASK(0000)
1632 (void) mkdir_parents_label(i->path, 0755);
1633
ecabcf8b 1634 mac_selinux_create_file_prepare(i->path, S_IFLNK);
4cef1923 1635 r = symlink(i->argument, i->path);
ecabcf8b 1636 mac_selinux_create_file_clear();
e9a5ef7c 1637
468d726b 1638 if (r < 0) {
2e78fa79 1639 _cleanup_free_ char *x = NULL;
468d726b 1640
4a62c710 1641 if (errno != EEXIST)
4cef1923 1642 return log_error_errno(errno, "symlink(%s, %s) failed: %m", i->argument, i->path);
2e78fa79
LP		 1643
1644 r = readlink_malloc(i->path, &x);
4cef1923 1645 if (r < 0 || !streq(i->argument, x)) {
2e78fa79
LP		 1646
1647 if (i->force) {
ecabcf8b 1648 mac_selinux_create_file_prepare(i->path, S_IFLNK);
4cef1923 1649 r = symlink_atomic(i->argument, i->path);
ecabcf8b 1650 mac_selinux_create_file_clear();
2e78fa79 1651
2ef5de1b 1652 if (IN_SET(r, -EISDIR, -EEXIST, -ENOTEMPTY)) {
b3f5897f
WD		 1653 r = rm_rf(i->path, REMOVE_ROOT|REMOVE_PHYSICAL);
1654 if (r < 0)
1655 return log_error_errno(r, "rm -fr %s failed: %m", i->path);
1656
1657 mac_selinux_create_file_prepare(i->path, S_IFLNK);
4cef1923 1658 r = symlink(i->argument, i->path) < 0 ? -errno : 0;
b3f5897f
WD		 1659 mac_selinux_create_file_clear();
1660 }
f647962d 1661 if (r < 0)
4cef1923 1662 return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path);
a542c4dc 1663
294929f8 1664 creation = CREATION_FORCE;
1554afae 1665 } else {
582deb84 1666 log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path);
1554afae
LP		 1667 return 0;
1668 }
294929f8
ZJS		 1669 } else
1670 creation = CREATION_EXISTING;
1671 } else
a542c4dc 1672
294929f8 1673 creation = CREATION_NORMAL;
7a7d5db7 1674 log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path);
468d726b 1675 break;
5c5ccf12 1676 }
468d726b
LP		 1677
1678 case CREATE_BLOCK_DEVICE:
1679 case CREATE_CHAR_DEVICE: {
cb7ed9df
LP		 1680 mode_t file_type;
1681
1682 if (have_effective_cap(CAP_MKNOD) == 0) {
1683 /* In a container we lack CAP_MKNOD. We
ab06eef8 1684 shouldn't attempt to create the device node in
cb7ed9df
LP		 1685 that case to avoid noise, and we don't support
1686 virtualized devices in containers anyway. */
1687
1688 log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
1689 return 0;
1690 }
1691
7fa10748
LP		 1692 RUN_WITH_UMASK(0000)
1693 (void) mkdir_parents_label(i->path, 0755);
1694
1554afae 1695 file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR;
468d726b 1696
5c0d398d 1697 RUN_WITH_UMASK(0000) {
ecabcf8b 1698 mac_selinux_create_file_prepare(i->path, file_type);
5c0d398d 1699 r = mknod(i->path, i->mode | file_type, i->major_minor);
ecabcf8b 1700 mac_selinux_create_file_clear();
5c0d398d 1701 }
468d726b 1702
6555ad8e
KS		 1703 if (r < 0) {
1704 if (errno == EPERM) {
1705 log_debug("We lack permissions, possibly because of cgroup configuration; "
1706 "skipping creation of device node %s.", i->path);
1707 return 0;
1708 }
1709
4a62c710
MS		 1710 if (errno != EEXIST)
1711 return log_error_errno(errno, "Failed to create device node %s: %m", i->path);
468d726b 1712
a542c4dc 1713 if (lstat(i->path, &st) < 0)
4a62c710 1714 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
468d726b 1715
1554afae
LP		 1716 if ((st.st_mode & S_IFMT) != file_type) {
1717
1718 if (i->force) {
1719
1720 RUN_WITH_UMASK(0000) {
ecabcf8b 1721 mac_selinux_create_file_prepare(i->path, file_type);
1554afae 1722 r = mknod_atomic(i->path, i->mode | file_type, i->major_minor);
ecabcf8b 1723 mac_selinux_create_file_clear();
1554afae
LP		 1724 }
1725
f647962d 1726 if (r < 0)
294929f8
ZJS		 1727 return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path);
1728 creation = CREATION_FORCE;
1554afae
LP		 1729 } else {
1730 log_debug("%s is not a device node.", i->path);
1731 return 0;
1732 }
294929f8
ZJS		 1733 } else
1734 creation = CREATION_EXISTING;
1735 } else
1736 creation = CREATION_NORMAL;
a542c4dc 1737
294929f8 1738 log_debug("%s %s device node \"%s\" %u:%u.",
7a7d5db7 1739 creation_mode_verb_to_string(creation),
582deb84
ZJS		 1740 i->type == CREATE_BLOCK_DEVICE ? "block" : "char",
1741 i->path, major(i->mode), minor(i->mode));
468d726b 1742
b705ab6a 1743 r = path_set_perms(i, i->path);
468d726b
LP		 1744 if (r < 0)
1745 return r;
1746
1747 break;
1748 }
1749
e73a03e0 1750 case ADJUST_MODE:
777b87e7 1751 case RELABEL_PATH:
936f6bdb 1752 r = glob_item(i, path_set_perms);
777b87e7 1753 if (r < 0)
96ca8194 1754 return r;
777b87e7
MS		 1755 break;
1756
a8d88783 1757 case RECURSIVE_RELABEL_PATH:
936f6bdb 1758 r = glob_item_recursively(i, fd_set_perms);
a8d88783
MS		 1759 if (r < 0)
1760 return r;
ebf4e801 1761 break;
e73a03e0 1762
ebf4e801 1763 case SET_XATTR:
936f6bdb 1764 r = glob_item(i, path_set_xattrs);
b705ab6a
ZJS		 1765 if (r < 0)
1766 return r;
1767 break;
1768
1769 case RECURSIVE_SET_XATTR:
936f6bdb 1770 r = glob_item_recursively(i, fd_set_xattrs);
ebf4e801
MW		 1771 if (r < 0)
1772 return r;
e73a03e0 1773 break;
f8eeeaf9
ZJS		 1774
1775 case SET_ACL:
936f6bdb 1776 r = glob_item(i, path_set_acls);
f8eeeaf9
ZJS		 1777 if (r < 0)
1778 return r;
b705ab6a
ZJS		 1779 break;
1780
1781 case RECURSIVE_SET_ACL:
936f6bdb 1782 r = glob_item_recursively(i, fd_set_acls);
b705ab6a
ZJS		 1783 if (r < 0)
1784 return r;
1785 break;
22c3a6ca 1786
88ec4dfa 1787 case SET_ATTRIBUTE:
936f6bdb 1788 r = glob_item(i, path_set_attribute);
22c3a6ca
GB		 1789 if (r < 0)
1790 return r;
1791 break;
1792
88ec4dfa 1793 case RECURSIVE_SET_ATTRIBUTE:
936f6bdb 1794 r = glob_item_recursively(i, fd_set_attribute);
22c3a6ca
GB		 1795 if (r < 0)
1796 return r;
1797 break;
3b63d2d3
LP		 1798 }
1799
f05bc3f7 1800 return 0;
3b63d2d3
LP		 1801}
1802
a0896123 1803static int remove_item_instance(Item *i, const char *instance) {
3b63d2d3
LP		 1804 int r;
1805
1806 assert(i);
1807
1808 switch (i->type) {
1809
3b63d2d3 1810 case REMOVE_PATH:
4a62c710 1811 if (remove(instance) < 0 && errno != ENOENT)
3f93da98 1812 return log_error_errno(errno, "rm(%s): %m", instance);
3b63d2d3
LP		 1813
1814 break;
1815
1816 case TRUNCATE_DIRECTORY:
1817 case RECURSIVE_REMOVE_PATH:
d139b24a
LP		 1818 /* FIXME: we probably should use dir_cleanup() here
1819 * instead of rm_rf() so that 'x' is honoured. */
582deb84 1820 log_debug("rm -rf \"%s\"", instance);
1b26f09e 1821 r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL);
f647962d
MS		 1822 if (r < 0 && r != -ENOENT)
1823 return log_error_errno(r, "rm_rf(%s): %m", instance);
3b63d2d3
LP		 1824
1825 break;
7fcb4b9b
ZJS		 1826
1827 default:
1828 assert_not_reached("wut?");
3b63d2d3
LP		 1829 }
1830
1831 return 0;
1832}
1833
a0896123 1834static int remove_item(Item *i) {
b8bb3e8f
LP		 1835 assert(i);
1836
582deb84
ZJS		 1837 log_debug("Running remove action for entry %c %s", (char) i->type, i->path);
1838
b8bb3e8f
LP		 1839 switch (i->type) {
1840
b8bb3e8f
LP		 1841 case REMOVE_PATH:
1842 case TRUNCATE_DIRECTORY:
99e68c0b 1843 case RECURSIVE_REMOVE_PATH:
936f6bdb 1844 return glob_item(i, remove_item_instance);
b8bb3e8f 1845
df8dee85
ZJS		 1846 default:
1847 return 0;
1848 }
b8bb3e8f
LP		 1849}
1850
78a92a5a 1851static int clean_item_instance(Item *i, const char* instance) {
7fd1b19b 1852 _cleanup_closedir_ DIR *d = NULL;
78a92a5a
MS		 1853 struct stat s, ps;
1854 bool mountpoint;
78a92a5a 1855 usec_t cutoff, n;
582deb84 1856 char timestamp[FORMAT_TIMESTAMP_MAX];
78a92a5a
MS		 1857
1858 assert(i);
1859
1860 if (!i->age_set)
1861 return 0;
1862
1863 n = now(CLOCK_REALTIME);
1864 if (n < i->age)
1865 return 0;
1866
1867 cutoff = n - i->age;
1868
df99a9ef 1869 d = opendir_nomod(instance);
78a92a5a 1870 if (!d) {
d710aaf7 1871 if (IN_SET(errno, ENOENT, ENOTDIR)) {
582deb84 1872 log_debug_errno(errno, "Directory \"%s\": %m", instance);
78a92a5a 1873 return 0;
582deb84 1874 }
78a92a5a 1875
d710aaf7 1876 return log_error_errno(errno, "Failed to open directory %s: %m", instance);
78a92a5a
MS		 1877 }
1878
4a62c710
MS		 1879 if (fstat(dirfd(d), &s) < 0)
1880 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
78a92a5a
MS		 1881
1882 if (!S_ISDIR(s.st_mode)) {
1883 log_error("%s is not a directory.", i->path);
19fbec19 1884 return -ENOTDIR;
78a92a5a
MS		 1885 }
1886
4a62c710
MS		 1887 if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0)
1888 return log_error_errno(errno, "stat(%s/..) failed: %m", i->path);
78a92a5a 1889
2bb158c1 1890 mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino;
78a92a5a 1891
582deb84
ZJS		 1892 log_debug("Cleanup threshold for %s \"%s\" is %s",
1893 mountpoint ? "mount point" : "directory",
1894 instance,
1895 format_timestamp_us(timestamp, sizeof(timestamp), cutoff));
1896
1897 return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
1898 MAX_DEPTH, i->keep_first_level);
78a92a5a
MS		 1899}
1900
1901static int clean_item(Item *i) {
78a92a5a
MS		 1902 assert(i);
1903
582deb84
ZJS		 1904 log_debug("Running clean action for entry %c %s", (char) i->type, i->path);
1905
78a92a5a
MS		 1906 switch (i->type) {
1907 case CREATE_DIRECTORY:
d7b8eec7 1908 case CREATE_SUBVOLUME:
5fb13eb5
LP		 1909 case CREATE_SUBVOLUME_INHERIT_QUOTA:
1910 case CREATE_SUBVOLUME_NEW_QUOTA:
78a92a5a
MS		 1911 case TRUNCATE_DIRECTORY:
1912 case IGNORE_PATH:
849958d1 1913 case COPY_FILES:
78a92a5a 1914 clean_item_instance(i, i->path);
df8dee85 1915 return 0;
65241c14 1916 case EMPTY_DIRECTORY:
78a92a5a 1917 case IGNORE_DIRECTORY_PATH:
936f6bdb 1918 return glob_item(i, clean_item_instance);
78a92a5a 1919 default:
df8dee85 1920 return 0;
78a92a5a 1921 }
78a92a5a
MS		 1922}
1923
3f93da98
ZJS		 1924static int process_item_array(ItemArray *array);
1925
3b63d2d3 1926static int process_item(Item *i) {
1e95893a 1927 int r, q, p, t = 0;
9348f0e6 1928 _cleanup_free_ char *prefix = NULL;
3b63d2d3
LP		 1929
1930 assert(i);
1931
1910cd0e
LP		 1932 if (i->done)
1933 return 0;
1934
1935 i->done = true;
1936
9348f0e6
ZJS		 1937 prefix = malloc(strlen(i->path) + 1);
1938 if (!prefix)
1939 return log_oom();
1940
1910cd0e 1941 PATH_FOREACH_PREFIX(prefix, i->path) {
3f93da98 1942 ItemArray *j;
1910cd0e 1943
ef43a391 1944 j = ordered_hashmap_get(items, prefix);
1db50423
ZJS		 1945 if (j) {
1946 int s;
1947
3f93da98 1948 s = process_item_array(j);
1db50423
ZJS		 1949 if (s < 0 && t == 0)
1950 t = s;
1951 }
1910cd0e
LP		 1952 }
1953
655f2da0
N		 1954 if (chase_symlinks(i->path, NULL, CHASE_NO_AUTOFS, NULL) == -EREMOTE)
1955 return t;
1956
3b63d2d3 1957 r = arg_create ? create_item(i) : 0;
a0896123 1958 q = arg_remove ? remove_item(i) : 0;
3b63d2d3
LP		 1959 p = arg_clean ? clean_item(i) : 0;
1960
1db50423
ZJS		 1961 return t < 0 ? t :
1962 r < 0 ? r :
1963 q < 0 ? q :
1964 p;
3b63d2d3
LP		 1965}
1966
3f93da98
ZJS		 1967static int process_item_array(ItemArray *array) {
1968 unsigned n;
1969 int r = 0, k;
753615e8 1970
3f93da98
ZJS		 1971 assert(array);
1972
1973 for (n = 0; n < array->count; n++) {
1974 k = process_item(array->items + n);
1975 if (k < 0 && r == 0)
1976 r = k;
1977 }
1978
1979 return r;
1980}
3b63d2d3 1981
3f93da98
ZJS		 1982static void item_free_contents(Item *i) {
1983 assert(i);
3b63d2d3 1984 free(i->path);
468d726b 1985 free(i->argument);
ebf4e801 1986 strv_free(i->xattrs);
f8eeeaf9 1987
349cc4a5 1988#if HAVE_ACL
f8eeeaf9
ZJS		 1989 acl_free(i->acl_access);
1990 acl_free(i->acl_default);
1991#endif
3b63d2d3
LP		 1992}
1993
3f93da98
ZJS		 1994static void item_array_free(ItemArray *a) {
1995 unsigned n;
1996
1997 if (!a)
1998 return;
1999
2000 for (n = 0; n < a->count; n++)
2001 item_free_contents(a->items + n);
2002 free(a->items);
2003 free(a);
2004}
e2f2fb78 2005
17493fa5
LP		 2006static int item_compare(const void *a, const void *b) {
2007 const Item *x = a, *y = b;
2008
2009 /* Make sure that the ownership taking item is put first, so
2010 * that we first create the node, and then can adjust it */
2011
2012 if (takes_ownership(x->type) && !takes_ownership(y->type))
2013 return -1;
2014 if (!takes_ownership(x->type) && takes_ownership(y->type))
2015 return 1;
2016
2017 return (int) x->type - (int) y->type;
2018}
2019
3f93da98 2020static bool item_compatible(Item *a, Item *b) {
bfe95f35
LP		 2021 assert(a);
2022 assert(b);
3f93da98 2023 assert(streq(a->path, b->path));
bfe95f35 2024
3f93da98
ZJS		 2025 if (takes_ownership(a->type) && takes_ownership(b->type))
2026 /* check if the items are the same */
2027 return streq_ptr(a->argument, b->argument) &&
bfe95f35 2028
3f93da98
ZJS		 2029 a->uid_set == b->uid_set &&
2030 a->uid == b->uid &&
bfe95f35 2031
3f93da98
ZJS		 2032 a->gid_set == b->gid_set &&
2033 a->gid == b->gid &&
bfe95f35 2034
3f93da98
ZJS		 2035 a->mode_set == b->mode_set &&
2036 a->mode == b->mode &&
bfe95f35 2037
3f93da98
ZJS		 2038 a->age_set == b->age_set &&
2039 a->age == b->age &&
bfe95f35 2040
3f93da98 2041 a->mask_perms == b->mask_perms &&
bfe95f35 2042
3f93da98 2043 a->keep_first_level == b->keep_first_level &&
468d726b 2044
3f93da98 2045 a->major_minor == b->major_minor;
468d726b 2046
bfe95f35
LP		 2047 return true;
2048}
2049
a2aced4a
DR		 2050static bool should_include_path(const char *path) {
2051 char **prefix;
2052
abef3f91 2053 STRV_FOREACH(prefix, arg_exclude_prefixes)
582deb84
ZJS		 2054 if (path_startswith(path, *prefix)) {
2055 log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.",
2056 path, *prefix);
5c795114 2057 return false;
582deb84 2058 }
a2aced4a 2059
abef3f91 2060 STRV_FOREACH(prefix, arg_include_prefixes)
582deb84
ZJS		 2061 if (path_startswith(path, *prefix)) {
2062 log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix);
a2aced4a 2063 return true;
582deb84 2064 }
a2aced4a 2065
5c795114
DR		 2066 /* no matches, so we should include this path only if we
2067 * have no whitelist at all */
7b943bb7 2068 if (strv_isempty(arg_include_prefixes))
582deb84
ZJS		 2069 return true;
2070
2071 log_debug("Entry \"%s\" does not match any include prefix, skipping.", path);
2072 return false;
a2aced4a
DR		 2073}
2074
4cef1923
FB		 2075static int specifier_expansion_from_arg(Item *i) {
2076 _cleanup_free_ char *unescaped = NULL, *resolved = NULL;
2077 char **xattr;
2078 int r;
2079
2080 assert(i);
2081
2082 if (i->argument == NULL)
2083 return 0;
2084
2085 switch (i->type) {
2086 case COPY_FILES:
2087 case CREATE_SYMLINK:
2088 case CREATE_FILE:
2089 case TRUNCATE_FILE:
2090 case WRITE_FILE:
2091 r = cunescape(i->argument, 0, &unescaped);
2092 if (r < 0)
2093 return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument);
2094
2095 r = specifier_printf(unescaped, specifier_table, NULL, &resolved);
2096 if (r < 0)
2097 return r;
2098
2099 free_and_replace(i->argument, resolved);
2100 break;
2101
2102 case SET_XATTR:
2103 case RECURSIVE_SET_XATTR:
2104 assert(i->xattrs);
2105
2106 STRV_FOREACH (xattr, i->xattrs) {
2107 r = specifier_printf(*xattr, specifier_table, NULL, &resolved);
2108 if (r < 0)
2109 return r;
2110
2111 free_and_replace(*xattr, resolved);
2112 }
2113 break;
2114
2115 default:
2116 break;
2117 }
2118 return 0;
2119}
2120
a2d1fb88
LP		 2121static int patch_var_run(const char *fname, unsigned line, char **path) {
2122 const char *k;
2123 char *n;
2124
2125 assert(path);
2126 assert(*path);
2127
2128 /* Optionally rewrites lines referencing /var/run/, to use /run/ instead. Why bother? tmpfiles merges lines in
2129 * some cases and detects conflicts in others. If files/directories are specified through two equivalent lines
2130 * this is problematic as neither case will be detected. Ideally we'd detect these cases by resolving symlinks
2131 * early, but that's precisely not what we can do here as this code very likely is running very early on, at a
2132 * time where the paths in question are not available yet, or even more importantly, our own tmpfiles rules
2133 * might create the paths that are intermediary to the listed paths. We can't really cover the generic case,
2134 * but the least we can do is cover the specific case of /var/run vs. /run, as /var/run is a legacy name for
2135 * /run only, and we explicitly document that and require that on systemd systems the former is a symlink to
2136 * the latter. Moreover files below this path are by far the primary usecase for tmpfiles.d/. */
2137
2138 k = path_startswith(*path, "/var/run/");
2139 if (isempty(k)) /* Don't complain about other paths than /var/run, and not about /var/run itself either. */
2140 return 0;
2141
2142 n = strjoin("/run/", k);
2143 if (!n)
2144 return log_oom();
2145
2146 /* Also log about this briefly. We do so at LOG_NOTICE level, as we fixed up the situation automatically, hence
2147 * there's no immediate need for action by the user. However, in the interest of making things less confusing
2148 * to the user, let's still inform the user that these snippets should really be updated. */
2149
2150 log_notice("[%s:%u] Line references path below legacy directory /var/run/, updating %s → %s; please update the tmpfiles.d/ drop-in file accordingly.", fname, line, *path, n);
2151
2152 free(*path);
2153 *path = n;
2154
2155 return 0;
2156}
2157
d9daae55 2158static int parse_line(const char *fname, unsigned line, const char *buffer, bool *invalid_config) {
1731e34a 2159
cde684a2 2160 _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
3f93da98
ZJS		 2161 _cleanup_(item_free_contents) Item i = {};
2162 ItemArray *existing;
ef43a391 2163 OrderedHashmap *h;
657cf7f4 2164 int r, pos;
5f255144 2165 bool force = false, boot = false;
3b63d2d3
LP		 2166
2167 assert(fname);
2168 assert(line >= 1);
2169 assert(buffer);
2170
68685607 2171 r = extract_many_words(
4034a06d 2172 &buffer,
68685607 2173 NULL,
12ba2c44 2174 EXTRACT_QUOTES,
4034a06d
LP		 2175 &action,
2176 &path,
2177 &mode,
2178 &user,
2179 &group,
2180 &age,
2181 NULL);
d9daae55 2182 if (r < 0) {
751223fe
ZJS		 2183 if (IN_SET(r, -EINVAL, -EBADSLT))
2184 /* invalid quoting and such or an unknown specifier */
d9daae55 2185 *invalid_config = true;
657cf7f4 2186 return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line);
4b93699d 2187 } else if (r < 2) {
d9daae55 2188 *invalid_config = true;
3b63d2d3 2189 log_error("[%s:%u] Syntax error.", fname, line);
7f2c1f4d 2190 return -EIO;
5008d581
LP		 2191 }
2192
aa5f6817 2193 if (!isempty(buffer) && !streq(buffer, "-")) {
4034a06d
LP		 2194 i.argument = strdup(buffer);
2195 if (!i.argument)
2196 return log_oom();
2197 }
2198
2e78fa79 2199 if (isempty(action)) {
d9daae55 2200 *invalid_config = true;
2e78fa79 2201 log_error("[%s:%u] Command too short '%s'.", fname, line, action);
c4708f13 2202 return -EINVAL;
2e78fa79
LP		 2203 }
2204
5f255144
ZJS		 2205 for (pos = 1; action[pos]; pos++) {
2206 if (action[pos] == '!' && !boot)
2207 boot = true;
2208 else if (action[pos] == '+' && !force)
2209 force = true;
2210 else {
d9daae55 2211 *invalid_config = true;
5f255144
ZJS		 2212 log_error("[%s:%u] Unknown modifiers in command '%s'",
2213 fname, line, action);
2214 return -EINVAL;
2215 }
2e78fa79
LP		 2216 }
2217
582deb84
ZJS		 2218 if (boot && !arg_boot) {
2219 log_debug("Ignoring entry %s \"%s\" because --boot is not specified.",
2220 action, path);
c4708f13 2221 return 0;
582deb84 2222 }
c4708f13 2223
3f93da98
ZJS		 2224 i.type = action[0];
2225 i.force = force;
2e78fa79 2226
3f93da98 2227 r = specifier_printf(path, specifier_table, NULL, &i.path);
5a8575ef 2228 if (r == -ENXIO)
4cef1923 2229 return log_unresolvable_specifier(fname, line);
d9daae55 2230 if (r < 0) {
751223fe
ZJS		 2231 if (IN_SET(r, -EINVAL, -EBADSLT))
2232 *invalid_config = true;
4cef1923 2233 return log_error_errno(r, "[%s:%u] Failed to replace specifiers: %s", fname, line, path);
d9daae55 2234 }
1731e34a 2235
a2d1fb88
LP		 2236 r = patch_var_run(fname, line, &i.path);
2237 if (r < 0)
2238 return r;
2239
3f93da98 2240 switch (i.type) {
468d726b 2241
777b87e7 2242 case CREATE_DIRECTORY:
d7b8eec7 2243 case CREATE_SUBVOLUME:
5fb13eb5
LP		 2244 case CREATE_SUBVOLUME_INHERIT_QUOTA:
2245 case CREATE_SUBVOLUME_NEW_QUOTA:
df8dee85 2246 case EMPTY_DIRECTORY:
777b87e7
MS		 2247 case TRUNCATE_DIRECTORY:
2248 case CREATE_FIFO:
2249 case IGNORE_PATH:
78a92a5a 2250 case IGNORE_DIRECTORY_PATH:
777b87e7
MS		 2251 case REMOVE_PATH:
2252 case RECURSIVE_REMOVE_PATH:
e73a03e0 2253 case ADJUST_MODE:
777b87e7
MS		 2254 case RELABEL_PATH:
2255 case RECURSIVE_RELABEL_PATH:
c82500c6 2256 if (i.argument)
bd550f78 2257 log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type);
c82500c6
LP		 2258
2259 break;
2260
2261 case CREATE_FILE:
2262 case TRUNCATE_FILE:
777b87e7 2263 break;
468d726b
LP		 2264
2265 case CREATE_SYMLINK:
3f93da98
ZJS		 2266 if (!i.argument) {
2267 i.argument = strappend("/usr/share/factory/", i.path);
2268 if (!i.argument)
2f3b873a 2269 return log_oom();
468d726b
LP		 2270 }
2271 break;
2272
31ed59c5 2273 case WRITE_FILE:
3f93da98 2274 if (!i.argument) {
d9daae55 2275 *invalid_config = true;
31ed59c5 2276 log_error("[%s:%u] Write file requires argument.", fname, line);
7f2c1f4d 2277 return -EBADMSG;
31ed59c5
LP		 2278 }
2279 break;
2280
849958d1 2281 case COPY_FILES:
3f93da98
ZJS		 2282 if (!i.argument) {
2283 i.argument = strappend("/usr/share/factory/", i.path);
2284 if (!i.argument)
2f3b873a 2285 return log_oom();
3f93da98 2286 } else if (!path_is_absolute(i.argument)) {
d9daae55 2287 *invalid_config = true;
849958d1
LP		 2288 log_error("[%s:%u] Source path is not absolute.", fname, line);
2289 return -EBADMSG;
2290 }
2291
858d36c1 2292 path_simplify(i.argument, false);
849958d1
LP		 2293 break;
2294
468d726b
LP		 2295 case CREATE_CHAR_DEVICE:
2296 case CREATE_BLOCK_DEVICE: {
2297 unsigned major, minor;
2298
3f93da98 2299 if (!i.argument) {
d9daae55 2300 *invalid_config = true;
468d726b 2301 log_error("[%s:%u] Device file requires argument.", fname, line);
7f2c1f4d 2302 return -EBADMSG;
468d726b
LP		 2303 }
2304
3f93da98 2305 if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) {
d9daae55 2306 *invalid_config = true;
3f93da98 2307 log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument);
7f2c1f4d 2308 return -EBADMSG;
468d726b
LP		 2309 }
2310
3f93da98 2311 i.major_minor = makedev(major, minor);
468d726b
LP		 2312 break;
2313 }
2314
ebf4e801 2315 case SET_XATTR:
b705ab6a 2316 case RECURSIVE_SET_XATTR:
3f93da98 2317 if (!i.argument) {
d9daae55 2318 *invalid_config = true;
ebf4e801
MW		 2319 log_error("[%s:%u] Set extended attribute requires argument.", fname, line);
2320 return -EBADMSG;
2321 }
bd550f78 2322 r = parse_xattrs_from_arg(&i);
ebf4e801
MW		 2323 if (r < 0)
2324 return r;
2325 break;
2326
f8eeeaf9 2327 case SET_ACL:
b705ab6a 2328 case RECURSIVE_SET_ACL:
f8eeeaf9 2329 if (!i.argument) {
d9daae55 2330 *invalid_config = true;
f8eeeaf9
ZJS		 2331 log_error("[%s:%u] Set ACLs requires argument.", fname, line);
2332 return -EBADMSG;
2333 }
bd550f78 2334 r = parse_acls_from_arg(&i);
f8eeeaf9
ZJS		 2335 if (r < 0)
2336 return r;
2337 break;
2338
88ec4dfa
LP		 2339 case SET_ATTRIBUTE:
2340 case RECURSIVE_SET_ATTRIBUTE:
22c3a6ca 2341 if (!i.argument) {
d9daae55 2342 *invalid_config = true;
88ec4dfa 2343 log_error("[%s:%u] Set file attribute requires argument.", fname, line);
22c3a6ca
GB		 2344 return -EBADMSG;
2345 }
bd550f78 2346 r = parse_attribute_from_arg(&i);
751223fe 2347 if (IN_SET(r, -EINVAL, -EBADSLT))
d9daae55 2348 *invalid_config = true;
22c3a6ca
GB		 2349 if (r < 0)
2350 return r;
2351 break;
2352
777b87e7 2353 default:
582deb84 2354 log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type);
d9daae55 2355 *invalid_config = true;
7f2c1f4d 2356 return -EBADMSG;
3b63d2d3 2357 }
468d726b 2358
3f93da98
ZJS		 2359 if (!path_is_absolute(i.path)) {
2360 log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path);
d9daae55 2361 *invalid_config = true;
7f2c1f4d 2362 return -EBADMSG;
3b63d2d3
LP		 2363 }
2364
858d36c1 2365 path_simplify(i.path, false);
3b63d2d3 2366
3f93da98 2367 if (!should_include_path(i.path))
7f2c1f4d 2368 return 0;
5008d581 2369
4cef1923 2370 r = specifier_expansion_from_arg(&i);
5a8575ef 2371 if (r == -ENXIO)
4cef1923 2372 return log_unresolvable_specifier(fname, line);
751223fe
ZJS		 2373 if (r < 0) {
2374 if (IN_SET(r, -EINVAL, -EBADSLT))
2375 *invalid_config = true;
4cef1923
FB		 2376 return log_error_errno(r, "[%s:%u] Failed to substitute specifiers in argument: %m",
2377 fname, line);
751223fe 2378 }
4cef1923 2379
cf9a4abd 2380 if (arg_root) {
cde684a2
LP		 2381 char *p;
2382
1d13f648 2383 p = prefix_root(arg_root, i.path);
cf9a4abd
MM		 2384 if (!p)
2385 return log_oom();
2386
3f93da98
ZJS		 2387 free(i.path);
2388 i.path = p;
cf9a4abd
MM		 2389 }
2390
90937fe3 2391 if (!isempty(user) && !streq(user, "-")) {
4b67834e
LP		 2392 const char *u = user;
2393
3f93da98 2394 r = get_user_creds(&u, &i.uid, NULL, NULL, NULL);
4b67834e 2395 if (r < 0) {
d9daae55
ZJS		 2396 *invalid_config = true;
2397 return log_error_errno(r, "[%s:%u] Unknown user '%s'.", fname, line, user);
3b63d2d3
LP		 2398 }
2399
3f93da98 2400 i.uid_set = true;
3b63d2d3
LP		 2401 }
2402
90937fe3 2403 if (!isempty(group) && !streq(group, "-")) {
4b67834e
LP		 2404 const char *g = group;
2405
3f93da98 2406 r = get_group_creds(&g, &i.gid);
4b67834e 2407 if (r < 0) {
d9daae55 2408 *invalid_config = true;
3b63d2d3 2409 log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
7f2c1f4d 2410 return r;
3b63d2d3
LP		 2411 }
2412
3f93da98 2413 i.gid_set = true;
3b63d2d3
LP		 2414 }
2415
90937fe3 2416 if (!isempty(mode) && !streq(mode, "-")) {
abef3f91 2417 const char *mm = mode;
3b63d2d3
LP		 2418 unsigned m;
2419
abef3f91 2420 if (*mm == '~') {
3f93da98 2421 i.mask_perms = true;
abef3f91
LP		 2422 mm++;
2423 }
2424
2ff7b0a5 2425 if (parse_mode(mm, &m) < 0) {
d9daae55 2426 *invalid_config = true;
3b63d2d3 2427 log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
2ff7b0a5 2428 return -EBADMSG;
3b63d2d3
LP		 2429 }
2430
3f93da98
ZJS		 2431 i.mode = m;
2432 i.mode_set = true;
3b63d2d3 2433 } else
5fb13eb5 2434 i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644;
3b63d2d3 2435
90937fe3 2436 if (!isempty(age) && !streq(age, "-")) {
24f3a374
LP		 2437 const char *a = age;
2438
2439 if (*a == '~') {
3f93da98 2440 i.keep_first_level = true;
24f3a374
LP		 2441 a++;
2442 }
2443
3f93da98 2444 if (parse_sec(a, &i.age) < 0) {
d9daae55 2445 *invalid_config = true;
3b63d2d3 2446 log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
7f2c1f4d 2447 return -EBADMSG;
3b63d2d3
LP		 2448 }
2449
3f93da98 2450 i.age_set = true;
3b63d2d3
LP		 2451 }
2452
3f93da98 2453 h = needs_glob(i.type) ? globs : items;
bfe95f35 2454
ef43a391 2455 existing = ordered_hashmap_get(h, i.path);
468d726b 2456 if (existing) {
3f93da98
ZJS		 2457 unsigned n;
2458
2459 for (n = 0; n < existing->count; n++) {
6487ada8 2460 if (!item_compatible(existing->items + n, &i)) {
e286dbaf
ZJS		 2461 log_notice("[%s:%u] Duplicate line for path \"%s\", ignoring.",
2462 fname, line, i.path);
6487ada8
MP		 2463 return 0;
2464 }
ebf4e801
MW		 2465 }
2466 } else {
3f93da98 2467 existing = new0(ItemArray, 1);
07982ed1
LP		 2468 if (!existing)
2469 return log_oom();
2470
ef43a391 2471 r = ordered_hashmap_put(h, i.path, existing);
3f93da98
ZJS		 2472 if (r < 0)
2473 return log_oom();
bfe95f35
LP		 2474 }
2475
3f93da98
ZJS		 2476 if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1))
2477 return log_oom();
5008d581 2478
3f93da98 2479 memcpy(existing->items + existing->count++, &i, sizeof(i));
dd449aca
ZJS		 2480
2481 /* Sort item array, to enforce stable ordering of application */
2482 qsort_safe(existing->items, existing->count, sizeof(Item), item_compare);
17493fa5 2483
3f93da98 2484 zero(i);
7f2c1f4d 2485 return 0;
5008d581
LP		 2486}
2487
ceaaeb9b
ZJS		 2488static int cat_config(char **config_dirs, char **args) {
2489 _cleanup_strv_free_ char **files = NULL;
2490 int r;
2491
2492 r = conf_files_list_with_replacement(arg_root, config_dirs, arg_replace, &files, NULL);
2493 if (r < 0)
2494 return r;
2495
2496 return cat_files(NULL, files, 0);
2497}
2498
601185b4 2499static void help(void) {
522d4a49
LP		 2500 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
2501 "Creates, deletes and cleans up volatile and temporary files and directories.\n\n"
5c795114 2502 " -h --help Show this help\n"
f2b5ca0e 2503 " --user Execute user configuration\n"
eb9da376 2504 " --version Show package version\n"
ceaaeb9b 2505 " --cat-config Show configuration files\n"
5c795114
DR		 2506 " --create Create marked files/directories\n"
2507 " --clean Clean up marked directories\n"
2508 " --remove Remove marked files/directories\n"
81815651 2509 " --boot Execute actions only safe at boot\n"
79ca888f
ZJS		 2510 " --prefix=PATH Only apply rules with the specified prefix\n"
2511 " --exclude-prefix=PATH Ignore rules with the specified prefix\n"
d9daae55 2512 " --root=PATH Operate on an alternate filesystem root\n"
a6d8474f 2513 " --replace=PATH Treat arguments as replacement for PATH\n"
dcd5c891 2514 " --no-pager Do not pipe output into a pager\n"
d9daae55 2515 , program_invocation_short_name);
3b63d2d3
LP		 2516}
2517
2518static int parse_argv(int argc, char *argv[]) {
2519
2520 enum {
eb9da376 2521 ARG_VERSION = 0x100,
ceaaeb9b 2522 ARG_CAT_CONFIG,
f2b5ca0e 2523 ARG_USER,
3b63d2d3
LP		 2524 ARG_CREATE,
2525 ARG_CLEAN,
fba6e687 2526 ARG_REMOVE,
81815651 2527 ARG_BOOT,
5c795114
DR		 2528 ARG_PREFIX,
2529 ARG_EXCLUDE_PREFIX,
cf9a4abd 2530 ARG_ROOT,
a6d8474f 2531 ARG_REPLACE,
dcd5c891 2532 ARG_NO_PAGER,
3b63d2d3
LP		 2533 };
2534
2535 static const struct option options[] = {
5c795114 2536 { "help", no_argument, NULL, 'h' },
f2b5ca0e 2537 { "user", no_argument, NULL, ARG_USER },
eb9da376 2538 { "version", no_argument, NULL, ARG_VERSION },
ceaaeb9b 2539 { "cat-config", no_argument, NULL, ARG_CAT_CONFIG },
5c795114
DR		 2540 { "create", no_argument, NULL, ARG_CREATE },
2541 { "clean", no_argument, NULL, ARG_CLEAN },
2542 { "remove", no_argument, NULL, ARG_REMOVE },
81815651 2543 { "boot", no_argument, NULL, ARG_BOOT },
5c795114
DR		 2544 { "prefix", required_argument, NULL, ARG_PREFIX },
2545 { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX },
cf9a4abd 2546 { "root", required_argument, NULL, ARG_ROOT },
a6d8474f 2547 { "replace", required_argument, NULL, ARG_REPLACE },
dcd5c891 2548 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
eb9da376 2549 {}
3b63d2d3
LP		 2550 };
2551
0f474365 2552 int c, r;
3b63d2d3
LP		 2553
2554 assert(argc >= 0);
2555 assert(argv);
2556
601185b4 2557 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
3b63d2d3
LP		 2558
2559 switch (c) {
2560
2561 case 'h':
601185b4
ZJS		 2562 help();
2563 return 0;
eb9da376
LP		 2564
2565 case ARG_VERSION:
3f6fd1ba 2566 return version();
3b63d2d3 2567
ceaaeb9b
ZJS		 2568 case ARG_CAT_CONFIG:
2569 arg_cat_config = true;
2570 break;
2571
f2b5ca0e
ZJS		 2572 case ARG_USER:
2573 arg_user = true;
2574 break;
2575
3b63d2d3
LP		 2576 case ARG_CREATE:
2577 arg_create = true;
2578 break;
2579
2580 case ARG_CLEAN:
2581 arg_clean = true;
2582 break;
2583
2584 case ARG_REMOVE:
2585 arg_remove = true;
2586 break;
2587
81815651
ZJS		 2588 case ARG_BOOT:
2589 arg_boot = true;
c4708f13
ZJS		 2590 break;
2591
fba6e687 2592 case ARG_PREFIX:
7bc040fa 2593 if (strv_push(&arg_include_prefixes, optarg) < 0)
a2aced4a 2594 return log_oom();
fba6e687
LP		 2595 break;
2596
5c795114 2597 case ARG_EXCLUDE_PREFIX:
7bc040fa 2598 if (strv_push(&arg_exclude_prefixes, optarg) < 0)
5c795114
DR		 2599 return log_oom();
2600 break;
2601
cf9a4abd 2602 case ARG_ROOT:
0f03c2a4 2603 r = parse_path_argument_and_warn(optarg, true, &arg_root);
0f474365 2604 if (r < 0)
0f03c2a4 2605 return r;
cf9a4abd
MM		 2606 break;
2607
a6d8474f
ZJS		 2608 case ARG_REPLACE:
2609 if (!path_is_absolute(optarg) ||
2610 !endswith(optarg, ".conf")) {
2611 log_error("The argument to --replace= must an absolute path to a config file");
2612 return -EINVAL;
2613 }
2614
2615 arg_replace = optarg;
2616 break;
2617
dcd5c891
LP		 2618 case ARG_NO_PAGER:
2619 arg_no_pager = true;
2620 break;
2621
3b63d2d3
LP		 2622 case '?':
2623 return -EINVAL;
2624
2625 default:
eb9da376 2626 assert_not_reached("Unhandled option");
3b63d2d3 2627 }
3b63d2d3 2628
ceaaeb9b 2629 if (!arg_clean && !arg_create && !arg_remove && !arg_cat_config) {
35b8ca3a 2630 log_error("You need to specify at least one of --clean, --create or --remove.");
3b63d2d3
LP		 2631 return -EINVAL;
2632 }
2633
ceaaeb9b
ZJS		 2634 if (arg_replace && arg_cat_config) {
2635 log_error("Option --replace= is not supported with --cat-config");
2636 return -EINVAL;
2637 }
2638
a6d8474f
ZJS		 2639 if (arg_replace && optind >= argc) {
2640 log_error("When --replace= is given, some configuration items must be specified");
2641 return -EINVAL;
2642 }
2643
3b63d2d3
LP		 2644 return 1;
2645}
2646
a6d8474f 2647static int read_config_file(char **config_dirs, const char *fn, bool ignore_enoent, bool *invalid_config) {
f7ac1ed2
ZJS		 2648 _cleanup_fclose_ FILE *_f = NULL;
2649 FILE *f;
1731e34a 2650 char line[LINE_MAX];
78a92a5a 2651 Iterator iterator;
1731e34a 2652 unsigned v = 0;
78a92a5a 2653 Item *i;
4e68ec18 2654 int r = 0;
fba6e687
LP		 2655
2656 assert(fn);
2657
f7ac1ed2 2658 if (streq(fn, "-")) {
a6d8474f 2659 log_debug("Reading config from stdin…");
f7ac1ed2
ZJS		 2660 fn = "<stdin>";
2661 f = stdin;
2662 } else {
a6d8474f 2663 r = search_and_fopen(fn, "re", arg_root, (const char**) config_dirs, &_f);
f7ac1ed2
ZJS		 2664 if (r < 0) {
2665 if (ignore_enoent && r == -ENOENT) {
2666 log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn);
2667 return 0;
2668 }
fba6e687 2669
f7ac1ed2
ZJS		 2670 return log_error_errno(r, "Failed to open '%s': %m", fn);
2671 }
a6d8474f 2672 log_debug("Reading config file \"%s\"…", fn);
f7ac1ed2 2673 f = _f;
fba6e687
LP		 2674 }
2675
1731e34a
LP		 2676 FOREACH_LINE(line, f, break) {
2677 char *l;
fba6e687 2678 int k;
d9daae55 2679 bool invalid_line = false;
fba6e687 2680
fba6e687
LP		 2681 v++;
2682
2683 l = strstrip(line);
4c701096 2684 if (IN_SET(*l, 0, '#'))
fba6e687
LP		 2685 continue;
2686
d9daae55
ZJS		 2687 k = parse_line(fn, v, l, &invalid_line);
2688 if (k < 0) {
2689 if (invalid_line)
2690 /* Allow reporting with a special code if the caller requested this */
2691 *invalid_config = true;
2692 else if (r == 0)
2693 /* The first error becomes our return value */
2694 r = k;
2695 }
fba6e687
LP		 2696 }
2697
78a92a5a 2698 /* we have to determine age parameter for each entry of type X */
ef43a391 2699 ORDERED_HASHMAP_FOREACH(i, globs, iterator) {
78a92a5a
MS		 2700 Iterator iter;
2701 Item *j, *candidate_item = NULL;
2702
2703 if (i->type != IGNORE_DIRECTORY_PATH)
2704 continue;
2705
ef43a391 2706 ORDERED_HASHMAP_FOREACH(j, items, iter) {
5fb13eb5 2707 if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA))
78a92a5a
MS		 2708 continue;
2709
2710 if (path_equal(j->path, i->path)) {
2711 candidate_item = j;
2712 break;
2713 }
2714
2715 if ((!candidate_item && path_startswith(i->path, j->path)) ||
2716 (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
2717 candidate_item = j;
2718 }
2719
9ed2a35e 2720 if (candidate_item && candidate_item->age_set) {
78a92a5a
MS		 2721 i->age = candidate_item->age;
2722 i->age_set = true;
2723 }
2724 }
2725
fba6e687 2726 if (ferror(f)) {
56f64d95 2727 log_error_errno(errno, "Failed to read from file %s: %m", fn);
fba6e687
LP		 2728 if (r == 0)
2729 r = -EIO;
2730 }
2731
fba6e687
LP		 2732 return r;
2733}
2734
a6d8474f
ZJS		 2735static int parse_arguments(char **config_dirs, char **args, bool *invalid_config) {
2736 char **arg;
2737 int r;
2738
2739 STRV_FOREACH(arg, args) {
2740 r = read_config_file(config_dirs, *arg, false, invalid_config);
2741 if (r < 0)
2742 return r;
2743 }
2744
2745 return 0;
2746}
2747
2748static int read_config_files(char **config_dirs, char **args, bool *invalid_config) {
2749 _cleanup_strv_free_ char **files = NULL;
2750 _cleanup_free_ char *p = NULL;
2751 char **f;
2752 int r;
2753
ceaaeb9b 2754 r = conf_files_list_with_replacement(arg_root, config_dirs, arg_replace, &files, &p);
a6d8474f 2755 if (r < 0)
ceaaeb9b 2756 return r;
a6d8474f
ZJS		 2757
2758 STRV_FOREACH(f, files)
2759 if (p && path_equal(*f, p)) {
2760 log_debug("Parsing arguments at position \"%s\"…", *f);
2761
2762 r = parse_arguments(config_dirs, args, invalid_config);
2763 if (r < 0)
2764 return r;
2765 } else
2766 /* Just warn, ignore result otherwise.
2767 * read_config_file() has some debug output, so no need to print anything. */
2768 (void) read_config_file(config_dirs, *f, true, invalid_config);
2769
2770 return 0;
2771}
2772
5008d581 2773int main(int argc, char *argv[]) {
bb9947be 2774 int r, k, r_process = 0;
3f93da98 2775 ItemArray *a;
3b63d2d3 2776 Iterator iterator;
f2b5ca0e 2777 _cleanup_strv_free_ char **config_dirs = NULL;
d9daae55 2778 bool invalid_config = false;
3b63d2d3 2779
fdcad0c2
LP		 2780 r = parse_argv(argc, argv);
2781 if (r <= 0)
753615e8 2782 goto finish;
5008d581 2783
eb0ca9eb 2784 log_set_target(LOG_TARGET_AUTO);
5008d581
LP		 2785 log_parse_environment();
2786 log_open();
2787
f2b5ca0e
ZJS		 2788 if (arg_user) {
2789 r = user_config_paths(&config_dirs);
2790 if (r < 0) {
2791 log_error_errno(r, "Failed to initialize configuration directory list: %m");
2792 goto finish;
2793 }
2794 } else {
2795 config_dirs = strv_split_nulstr(CONF_PATHS_NULSTR("tmpfiles.d"));
2796 if (!config_dirs) {
2797 r = log_oom();
2798 goto finish;
2799 }
2800 }
2801
79c91cec 2802 if (DEBUG_LOGGING) {
f2b5ca0e
ZJS		 2803 _cleanup_free_ char *t = NULL;
2804
2805 t = strv_join(config_dirs, "\n\t");
2806 if (t)
bb9947be 2807 log_debug("Looking for configuration files in (higher priority first):\n\t%s", t);
f2b5ca0e
ZJS		 2808 }
2809
ceaaeb9b 2810 if (arg_cat_config) {
dcd5c891
LP		 2811 (void) pager_open(arg_no_pager, false);
2812
ceaaeb9b
ZJS		 2813 r = cat_config(config_dirs, argv + optind);
2814 goto finish;
2815 }
2816
2817 umask(0022);
2818
2819 mac_selinux_init();
2820
2821 items = ordered_hashmap_new(&string_hash_ops);
2822 globs = ordered_hashmap_new(&string_hash_ops);
2823
2824 if (!items || !globs) {
2825 r = log_oom();
2826 goto finish;
2827 }
2828
a6d8474f
ZJS		 2829 /* If command line arguments are specified along with --replace, read all
2830 * configuration files and insert the positional arguments at the specified
2831 * place. Otherwise, if command line arguments are specified, execute just
2832 * them, and finally, without --replace= or any positional arguments, just
2833 * read configuration and execute it.
2834 */
2835 if (arg_replace || optind >= argc)
2836 r = read_config_files(config_dirs, argv + optind, &invalid_config);
2837 else
2838 r = parse_arguments(config_dirs, argv + optind, &invalid_config);
2839 if (r < 0)
2840 goto finish;
5008d581 2841
17493fa5
LP		 2842 /* The non-globbing ones usually create things, hence we apply
2843 * them first */
ef43a391 2844 ORDERED_HASHMAP_FOREACH(a, items, iterator) {
3f93da98 2845 k = process_item_array(a);
bb9947be
ZJS		 2846 if (k < 0 && r_process == 0)
2847 r_process = k;
1db50423 2848 }
b8bb3e8f 2849
17493fa5
LP		 2850 /* The globbing ones usually alter things, hence we apply them
2851 * second. */
ef43a391 2852 ORDERED_HASHMAP_FOREACH(a, globs, iterator) {
3f93da98 2853 k = process_item_array(a);
bb9947be
ZJS		 2854 if (k < 0 && r_process == 0)
2855 r_process = k;
1db50423 2856 }
3b63d2d3 2857
5008d581 2858finish:
dcd5c891
LP		 2859 pager_close();
2860
224b0e7a
ZJS		 2861 ordered_hashmap_free_with_destructor(items, item_array_free);
2862 ordered_hashmap_free_with_destructor(globs, item_array_free);
5008d581 2863
7bc040fa
LP		 2864 free(arg_include_prefixes);
2865 free(arg_exclude_prefixes);
cf9a4abd 2866 free(arg_root);
a2aced4a 2867
17b90525
LP		 2868 set_free_free(unix_sockets);
2869
cc56fafe 2870 mac_selinux_finish();
29003cff 2871
bb9947be 2872 if (r < 0 || ERRNO_IS_RESOURCE(-r_process))
d9daae55
ZJS		 2873 return EXIT_FAILURE;
2874 else if (invalid_config)
2875 return EX_DATAERR;
bb9947be
ZJS		 2876 else if (r_process < 0)
2877 return EX_CANTCREAT;
d9daae55
ZJS		 2878 else
2879 return EXIT_SUCCESS;
5008d581 2880}
Unnamed repository; edit this file 'description' to name the repository.