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Merge pull request #1406 from blaskovic/journal-remote-typo
[thirdparty/systemd.git] / src / tmpfiles / tmpfiles.c
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3 /***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering, Kay Sievers
7 Copyright 2015 Zbigniew Jędrzejewski-Szmek
8
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
13
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21 ***/
22
23 #include <dirent.h>
24 #include <errno.h>
25 #include <fcntl.h>
26 #include <fnmatch.h>
27 #include <getopt.h>
28 #include <glob.h>
29 #include <limits.h>
30 #include <linux/fs.h>
31 #include <stdbool.h>
32 #include <stddef.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <sys/stat.h>
37 #include <sys/xattr.h>
38 #include <time.h>
39 #include <unistd.h>
40
41 #include "acl-util.h"
42 #include "btrfs-util.h"
43 #include "capability.h"
44 #include "conf-files.h"
45 #include "copy.h"
46 #include "formats-util.h"
47 #include "label.h"
48 #include "log.h"
49 #include "macro.h"
50 #include "missing.h"
51 #include "mkdir.h"
52 #include "path-util.h"
53 #include "rm-rf.h"
54 #include "selinux-util.h"
55 #include "set.h"
56 #include "specifier.h"
57 #include "strv.h"
58 #include "util.h"
59
60 /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
61 * them in the file system. This is intended to be used to create
62 * properly owned directories beneath /tmp, /var/tmp, /run, which are
63 * volatile and hence need to be recreated on bootup. */
64
65 typedef enum ItemType {
66 /* These ones take file names */
67 CREATE_FILE = 'f',
68 TRUNCATE_FILE = 'F',
69 CREATE_DIRECTORY = 'd',
70 TRUNCATE_DIRECTORY = 'D',
71 CREATE_SUBVOLUME = 'v',
72 CREATE_FIFO = 'p',
73 CREATE_SYMLINK = 'L',
74 CREATE_CHAR_DEVICE = 'c',
75 CREATE_BLOCK_DEVICE = 'b',
76 COPY_FILES = 'C',
77
78 /* These ones take globs */
79 WRITE_FILE = 'w',
80 SET_XATTR = 't',
81 RECURSIVE_SET_XATTR = 'T',
82 SET_ACL = 'a',
83 RECURSIVE_SET_ACL = 'A',
84 SET_ATTRIBUTE = 'h',
85 RECURSIVE_SET_ATTRIBUTE = 'H',
86 IGNORE_PATH = 'x',
87 IGNORE_DIRECTORY_PATH = 'X',
88 REMOVE_PATH = 'r',
89 RECURSIVE_REMOVE_PATH = 'R',
90 RELABEL_PATH = 'z',
91 RECURSIVE_RELABEL_PATH = 'Z',
92 ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */
93 } ItemType;
94
95 typedef struct Item {
96 ItemType type;
97
98 char *path;
99 char *argument;
100 char **xattrs;
101 #ifdef HAVE_ACL
102 acl_t acl_access;
103 acl_t acl_default;
104 #endif
105 uid_t uid;
106 gid_t gid;
107 mode_t mode;
108 usec_t age;
109
110 dev_t major_minor;
111 unsigned attribute_value;
112 unsigned attribute_mask;
113
114 bool uid_set:1;
115 bool gid_set:1;
116 bool mode_set:1;
117 bool age_set:1;
118 bool mask_perms:1;
119 bool attribute_set:1;
120
121 bool keep_first_level:1;
122
123 bool force:1;
124
125 bool done:1;
126 } Item;
127
128 typedef struct ItemArray {
129 Item *items;
130 size_t count;
131 size_t size;
132 } ItemArray;
133
134 static bool arg_create = false;
135 static bool arg_clean = false;
136 static bool arg_remove = false;
137 static bool arg_boot = false;
138
139 static char **arg_include_prefixes = NULL;
140 static char **arg_exclude_prefixes = NULL;
141 static char *arg_root = NULL;
142
143 static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles");
144
145 #define MAX_DEPTH 256
146
147 static OrderedHashmap *items = NULL, *globs = NULL;
148 static Set *unix_sockets = NULL;
149
150 static const Specifier specifier_table[] = {
151 { 'm', specifier_machine_id, NULL },
152 { 'b', specifier_boot_id, NULL },
153 { 'H', specifier_host_name, NULL },
154 { 'v', specifier_kernel_release, NULL },
155 {}
156 };
157
158 static bool needs_glob(ItemType t) {
159 return IN_SET(t,
160 WRITE_FILE,
161 IGNORE_PATH,
162 IGNORE_DIRECTORY_PATH,
163 REMOVE_PATH,
164 RECURSIVE_REMOVE_PATH,
165 ADJUST_MODE,
166 RELABEL_PATH,
167 RECURSIVE_RELABEL_PATH,
168 SET_XATTR,
169 RECURSIVE_SET_XATTR,
170 SET_ACL,
171 RECURSIVE_SET_ACL,
172 SET_ATTRIBUTE,
173 RECURSIVE_SET_ATTRIBUTE);
174 }
175
176 static bool takes_ownership(ItemType t) {
177 return IN_SET(t,
178 CREATE_FILE,
179 TRUNCATE_FILE,
180 CREATE_DIRECTORY,
181 TRUNCATE_DIRECTORY,
182 CREATE_SUBVOLUME,
183 CREATE_FIFO,
184 CREATE_SYMLINK,
185 CREATE_CHAR_DEVICE,
186 CREATE_BLOCK_DEVICE,
187 COPY_FILES,
188 WRITE_FILE,
189 IGNORE_PATH,
190 IGNORE_DIRECTORY_PATH,
191 REMOVE_PATH,
192 RECURSIVE_REMOVE_PATH);
193 }
194
195 static struct Item* find_glob(OrderedHashmap *h, const char *match) {
196 ItemArray *j;
197 Iterator i;
198
199 ORDERED_HASHMAP_FOREACH(j, h, i) {
200 unsigned n;
201
202 for (n = 0; n < j->count; n++) {
203 Item *item = j->items + n;
204
205 if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
206 return item;
207 }
208 }
209
210 return NULL;
211 }
212
213 static void load_unix_sockets(void) {
214 _cleanup_fclose_ FILE *f = NULL;
215 char line[LINE_MAX];
216
217 if (unix_sockets)
218 return;
219
220 /* We maintain a cache of the sockets we found in
221 * /proc/net/unix to speed things up a little. */
222
223 unix_sockets = set_new(&string_hash_ops);
224 if (!unix_sockets)
225 return;
226
227 f = fopen("/proc/net/unix", "re");
228 if (!f)
229 return;
230
231 /* Skip header */
232 if (!fgets(line, sizeof(line), f))
233 goto fail;
234
235 for (;;) {
236 char *p, *s;
237 int k;
238
239 if (!fgets(line, sizeof(line), f))
240 break;
241
242 truncate_nl(line);
243
244 p = strchr(line, ':');
245 if (!p)
246 continue;
247
248 if (strlen(p) < 37)
249 continue;
250
251 p += 37;
252 p += strspn(p, WHITESPACE);
253 p += strcspn(p, WHITESPACE); /* skip one more word */
254 p += strspn(p, WHITESPACE);
255
256 if (*p != '/')
257 continue;
258
259 s = strdup(p);
260 if (!s)
261 goto fail;
262
263 path_kill_slashes(s);
264
265 k = set_consume(unix_sockets, s);
266 if (k < 0 && k != -EEXIST)
267 goto fail;
268 }
269
270 return;
271
272 fail:
273 set_free_free(unix_sockets);
274 unix_sockets = NULL;
275 }
276
277 static bool unix_socket_alive(const char *fn) {
278 assert(fn);
279
280 load_unix_sockets();
281
282 if (unix_sockets)
283 return !!set_get(unix_sockets, (char*) fn);
284
285 /* We don't know, so assume yes */
286 return true;
287 }
288
289 static int dir_is_mount_point(DIR *d, const char *subdir) {
290
291 union file_handle_union h = FILE_HANDLE_INIT;
292 int mount_id_parent, mount_id;
293 int r_p, r;
294
295 r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0);
296 if (r_p < 0)
297 r_p = -errno;
298
299 h.handle.handle_bytes = MAX_HANDLE_SZ;
300 r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0);
301 if (r < 0)
302 r = -errno;
303
304 /* got no handle; make no assumptions, return error */
305 if (r_p < 0 && r < 0)
306 return r_p;
307
308 /* got both handles; if they differ, it is a mount point */
309 if (r_p >= 0 && r >= 0)
310 return mount_id_parent != mount_id;
311
312 /* got only one handle; assume different mount points if one
313 * of both queries was not supported by the filesystem */
314 if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP)
315 return true;
316
317 /* return error */
318 if (r_p < 0)
319 return r_p;
320 return r;
321 }
322
323 static DIR* xopendirat_nomod(int dirfd, const char *path) {
324 DIR *dir;
325
326 dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME);
327 if (dir)
328 return dir;
329
330 log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path);
331 if (errno != EPERM)
332 return NULL;
333
334 dir = xopendirat(dirfd, path, O_NOFOLLOW);
335 if (!dir)
336 log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path);
337
338 return dir;
339 }
340
341 static DIR* opendir_nomod(const char *path) {
342 return xopendirat_nomod(AT_FDCWD, path);
343 }
344
345 static int dir_cleanup(
346 Item *i,
347 const char *p,
348 DIR *d,
349 const struct stat *ds,
350 usec_t cutoff,
351 dev_t rootdev,
352 bool mountpoint,
353 int maxdepth,
354 bool keep_this_level) {
355
356 struct dirent *dent;
357 struct timespec times[2];
358 bool deleted = false;
359 int r = 0;
360
361 while ((dent = readdir(d))) {
362 struct stat s;
363 usec_t age;
364 _cleanup_free_ char *sub_path = NULL;
365
366 if (STR_IN_SET(dent->d_name, ".", ".."))
367 continue;
368
369 if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
370 if (errno == ENOENT)
371 continue;
372
373 /* FUSE, NFS mounts, SELinux might return EACCES */
374 if (errno == EACCES)
375 log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name);
376 else
377 log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name);
378 r = -errno;
379 continue;
380 }
381
382 /* Stay on the same filesystem */
383 if (s.st_dev != rootdev) {
384 log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name);
385 continue;
386 }
387
388 /* Try to detect bind mounts of the same filesystem instance; they
389 * do not differ in device major/minors. This type of query is not
390 * supported on all kernels or filesystem types though. */
391 if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) {
392 log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.",
393 p, dent->d_name);
394 continue;
395 }
396
397 /* Do not delete read-only files owned by root */
398 if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) {
399 log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name);
400 continue;
401 }
402
403 sub_path = strjoin(p, "/", dent->d_name, NULL);
404 if (!sub_path) {
405 r = log_oom();
406 goto finish;
407 }
408
409 /* Is there an item configured for this path? */
410 if (ordered_hashmap_get(items, sub_path)) {
411 log_debug("Ignoring \"%s\": a separate entry exists.", sub_path);
412 continue;
413 }
414
415 if (find_glob(globs, sub_path)) {
416 log_debug("Ignoring \"%s\": a separate glob exists.", sub_path);
417 continue;
418 }
419
420 if (S_ISDIR(s.st_mode)) {
421
422 if (mountpoint &&
423 streq(dent->d_name, "lost+found") &&
424 s.st_uid == 0) {
425 log_debug("Ignoring \"%s\".", sub_path);
426 continue;
427 }
428
429 if (maxdepth <= 0)
430 log_warning("Reached max depth on \"%s\".", sub_path);
431 else {
432 _cleanup_closedir_ DIR *sub_dir;
433 int q;
434
435 sub_dir = xopendirat_nomod(dirfd(d), dent->d_name);
436 if (!sub_dir) {
437 if (errno != ENOENT)
438 r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path);
439
440 continue;
441 }
442
443 q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
444 if (q < 0)
445 r = q;
446 }
447
448 /* Note: if you are wondering why we don't
449 * support the sticky bit for excluding
450 * directories from cleaning like we do it for
451 * other file system objects: well, the sticky
452 * bit already has a meaning for directories,
453 * so we don't want to overload that. */
454
455 if (keep_this_level) {
456 log_debug("Keeping \"%s\".", sub_path);
457 continue;
458 }
459
460 /* Ignore ctime, we change it when deleting */
461 age = timespec_load(&s.st_mtim);
462 if (age >= cutoff) {
463 char a[FORMAT_TIMESTAMP_MAX];
464 /* Follows spelling in stat(1). */
465 log_debug("Directory \"%s\": modify time %s is too new.",
466 sub_path,
467 format_timestamp_us(a, sizeof(a), age));
468 continue;
469 }
470
471 age = timespec_load(&s.st_atim);
472 if (age >= cutoff) {
473 char a[FORMAT_TIMESTAMP_MAX];
474 log_debug("Directory \"%s\": access time %s is too new.",
475 sub_path,
476 format_timestamp_us(a, sizeof(a), age));
477 continue;
478 }
479
480 log_debug("Removing directory \"%s\".", sub_path);
481 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0)
482 if (errno != ENOENT && errno != ENOTEMPTY) {
483 log_error_errno(errno, "rmdir(%s): %m", sub_path);
484 r = -errno;
485 }
486
487 } else {
488 /* Skip files for which the sticky bit is
489 * set. These are semantics we define, and are
490 * unknown elsewhere. See XDG_RUNTIME_DIR
491 * specification for details. */
492 if (s.st_mode & S_ISVTX) {
493 log_debug("Skipping \"%s\": sticky bit set.", sub_path);
494 continue;
495 }
496
497 if (mountpoint && S_ISREG(s.st_mode))
498 if (s.st_uid == 0 && STR_IN_SET(dent->d_name,
499 ".journal",
500 "aquota.user",
501 "aquota.group")) {
502 log_debug("Skipping \"%s\".", sub_path);
503 continue;
504 }
505
506 /* Ignore sockets that are listed in /proc/net/unix */
507 if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) {
508 log_debug("Skipping \"%s\": live socket.", sub_path);
509 continue;
510 }
511
512 /* Ignore device nodes */
513 if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) {
514 log_debug("Skipping \"%s\": a device.", sub_path);
515 continue;
516 }
517
518 /* Keep files on this level around if this is
519 * requested */
520 if (keep_this_level) {
521 log_debug("Keeping \"%s\".", sub_path);
522 continue;
523 }
524
525 age = timespec_load(&s.st_mtim);
526 if (age >= cutoff) {
527 char a[FORMAT_TIMESTAMP_MAX];
528 /* Follows spelling in stat(1). */
529 log_debug("File \"%s\": modify time %s is too new.",
530 sub_path,
531 format_timestamp_us(a, sizeof(a), age));
532 continue;
533 }
534
535 age = timespec_load(&s.st_atim);
536 if (age >= cutoff) {
537 char a[FORMAT_TIMESTAMP_MAX];
538 log_debug("File \"%s\": access time %s is too new.",
539 sub_path,
540 format_timestamp_us(a, sizeof(a), age));
541 continue;
542 }
543
544 age = timespec_load(&s.st_ctim);
545 if (age >= cutoff) {
546 char a[FORMAT_TIMESTAMP_MAX];
547 log_debug("File \"%s\": change time %s is too new.",
548 sub_path,
549 format_timestamp_us(a, sizeof(a), age));
550 continue;
551 }
552
553 log_debug("unlink \"%s\"", sub_path);
554
555 if (unlinkat(dirfd(d), dent->d_name, 0) < 0)
556 if (errno != ENOENT)
557 r = log_error_errno(errno, "unlink(%s): %m", sub_path);
558
559 deleted = true;
560 }
561 }
562
563 finish:
564 if (deleted) {
565 usec_t age1, age2;
566 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
567
568 /* Restore original directory timestamps */
569 times[0] = ds->st_atim;
570 times[1] = ds->st_mtim;
571
572 age1 = timespec_load(&ds->st_atim);
573 age2 = timespec_load(&ds->st_mtim);
574 log_debug("Restoring access and modification time on \"%s\": %s, %s",
575 p,
576 format_timestamp_us(a, sizeof(a), age1),
577 format_timestamp_us(b, sizeof(b), age2));
578 if (futimens(dirfd(d), times) < 0)
579 log_error_errno(errno, "utimensat(%s): %m", p);
580 }
581
582 return r;
583 }
584
585 static int path_set_perms(Item *i, const char *path) {
586 _cleanup_close_ int fd = -1;
587 struct stat st;
588
589 assert(i);
590 assert(path);
591
592 /* We open the file with O_PATH here, to make the operation
593 * somewhat atomic. Also there's unfortunately no fchmodat()
594 * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via
595 * O_PATH. */
596
597 fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME);
598 if (fd < 0)
599 return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path);
600
601 if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0)
602 return log_error_errno(errno, "Failed to fstat() file %s: %m", path);
603
604 if (S_ISLNK(st.st_mode))
605 log_debug("Skipping mode an owner fix for symlink %s.", path);
606 else {
607 char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
608 xsprintf(fn, "/proc/self/fd/%i", fd);
609
610 /* not using i->path directly because it may be a glob */
611 if (i->mode_set) {
612 mode_t m = i->mode;
613
614 if (i->mask_perms) {
615 if (!(st.st_mode & 0111))
616 m &= ~0111;
617 if (!(st.st_mode & 0222))
618 m &= ~0222;
619 if (!(st.st_mode & 0444))
620 m &= ~0444;
621 if (!S_ISDIR(st.st_mode))
622 m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */
623 }
624
625 if (m == (st.st_mode & 07777))
626 log_debug("\"%s\" has right mode %o", path, st.st_mode);
627 else {
628 log_debug("chmod \"%s\" to mode %o", path, m);
629 if (chmod(fn, m) < 0)
630 return log_error_errno(errno, "chmod(%s) failed: %m", path);
631 }
632 }
633
634 if ((i->uid != st.st_uid || i->gid != st.st_gid) &&
635 (i->uid_set || i->gid_set)) {
636 log_debug("chown \"%s\" to "UID_FMT"."GID_FMT,
637 path,
638 i->uid_set ? i->uid : UID_INVALID,
639 i->gid_set ? i->gid : GID_INVALID);
640 if (chown(fn,
641 i->uid_set ? i->uid : UID_INVALID,
642 i->gid_set ? i->gid : GID_INVALID) < 0)
643 return log_error_errno(errno, "chown(%s) failed: %m", path);
644 }
645 }
646
647 fd = safe_close(fd);
648
649 return label_fix(path, false, false);
650 }
651
652 static int parse_xattrs_from_arg(Item *i) {
653 const char *p;
654 int r;
655
656 assert(i);
657 assert(i->argument);
658
659 p = i->argument;
660
661 for (;;) {
662 _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL;
663
664 r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE);
665 if (r < 0)
666 log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p);
667 if (r <= 0)
668 break;
669
670 r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced);
671 if (r < 0)
672 return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr);
673
674 r = split_pair(xattr_replaced, "=", &name, &value);
675 if (r < 0) {
676 log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr);
677 continue;
678 }
679
680 if (isempty(name) || isempty(value)) {
681 log_warning("Malformed extended attribute found, ignoring: %s", xattr);
682 continue;
683 }
684
685 if (strv_push_pair(&i->xattrs, name, value) < 0)
686 return log_oom();
687
688 name = value = NULL;
689 }
690
691 return 0;
692 }
693
694 static int path_set_xattrs(Item *i, const char *path) {
695 char **name, **value;
696
697 assert(i);
698 assert(path);
699
700 STRV_FOREACH_PAIR(name, value, i->xattrs) {
701 int n;
702
703 n = strlen(*value);
704 log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path);
705 if (lsetxattr(path, *name, *value, n, 0) < 0) {
706 log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path);
707 return -errno;
708 }
709 }
710 return 0;
711 }
712
713 static int parse_acls_from_arg(Item *item) {
714 #ifdef HAVE_ACL
715 int r;
716
717 assert(item);
718
719 /* If force (= modify) is set, we will not modify the acl
720 * afterwards, so the mask can be added now if necessary. */
721
722 r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force);
723 if (r < 0)
724 log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument);
725 #else
726 log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring");
727 #endif
728
729 return 0;
730 }
731
732 #ifdef HAVE_ACL
733 static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) {
734 _cleanup_(acl_free_charpp) char *t = NULL;
735 _cleanup_(acl_freep) acl_t dup = NULL;
736 int r;
737
738 /* Returns 0 for success, positive error if already warned,
739 * negative error otherwise. */
740
741 if (modify) {
742 r = acls_for_file(path, type, acl, &dup);
743 if (r < 0)
744 return r;
745
746 r = calc_acl_mask_if_needed(&dup);
747 if (r < 0)
748 return r;
749 } else {
750 dup = acl_dup(acl);
751 if (!dup)
752 return -errno;
753
754 /* the mask was already added earlier if needed */
755 }
756
757 r = add_base_acls_if_needed(&dup, path);
758 if (r < 0)
759 return r;
760
761 t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE);
762 log_debug("Setting %s ACL %s on %s.",
763 type == ACL_TYPE_ACCESS ? "access" : "default",
764 strna(t), pretty);
765
766 r = acl_set_file(path, type, dup);
767 if (r < 0)
768 /* Return positive to indicate we already warned */
769 return -log_error_errno(errno,
770 "Setting %s ACL \"%s\" on %s failed: %m",
771 type == ACL_TYPE_ACCESS ? "access" : "default",
772 strna(t), pretty);
773
774 return 0;
775 }
776 #endif
777
778 static int path_set_acls(Item *item, const char *path) {
779 int r = 0;
780 #ifdef HAVE_ACL
781 char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
782 _cleanup_close_ int fd = -1;
783 struct stat st;
784
785 assert(item);
786 assert(path);
787
788 fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME);
789 if (fd < 0)
790 return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path);
791
792 if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0)
793 return log_error_errno(errno, "Failed to fstat() file %s: %m", path);
794
795 if (S_ISLNK(st.st_mode)) {
796 log_debug("Skipping ACL fix for symlink %s.", path);
797 return 0;
798 }
799
800 xsprintf(fn, "/proc/self/fd/%i", fd);
801
802 if (item->acl_access)
803 r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force);
804
805 if (r == 0 && item->acl_default)
806 r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force);
807
808 if (r > 0)
809 return -r; /* already warned */
810 else if (r == -EOPNOTSUPP) {
811 log_debug_errno(r, "ACLs not supported by file system at %s", path);
812 return 0;
813 } else if (r < 0)
814 log_error_errno(r, "ACL operation on \"%s\" failed: %m", path);
815 #endif
816 return r;
817 }
818
819 #define ATTRIBUTES_ALL \
820 (FS_NOATIME_FL | \
821 FS_SYNC_FL | \
822 FS_DIRSYNC_FL | \
823 FS_APPEND_FL | \
824 FS_COMPR_FL | \
825 FS_NODUMP_FL | \
826 FS_EXTENT_FL | \
827 FS_IMMUTABLE_FL | \
828 FS_JOURNAL_DATA_FL | \
829 FS_SECRM_FL | \
830 FS_UNRM_FL | \
831 FS_NOTAIL_FL | \
832 FS_TOPDIR_FL | \
833 FS_NOCOW_FL)
834
835 static int parse_attribute_from_arg(Item *item) {
836
837 static const struct {
838 char character;
839 unsigned value;
840 } attributes[] = {
841 { 'A', FS_NOATIME_FL }, /* do not update atime */
842 { 'S', FS_SYNC_FL }, /* Synchronous updates */
843 { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */
844 { 'a', FS_APPEND_FL }, /* writes to file may only append */
845 { 'c', FS_COMPR_FL }, /* Compress file */
846 { 'd', FS_NODUMP_FL }, /* do not dump file */
847 { 'e', FS_EXTENT_FL }, /* Top of directory hierarchies*/
848 { 'i', FS_IMMUTABLE_FL }, /* Immutable file */
849 { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */
850 { 's', FS_SECRM_FL }, /* Secure deletion */
851 { 'u', FS_UNRM_FL }, /* Undelete */
852 { 't', FS_NOTAIL_FL }, /* file tail should not be merged */
853 { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/
854 { 'C', FS_NOCOW_FL }, /* Do not cow file */
855 };
856
857 enum {
858 MODE_ADD,
859 MODE_DEL,
860 MODE_SET
861 } mode = MODE_ADD;
862
863 unsigned value = 0, mask = 0;
864 const char *p;
865
866 assert(item);
867
868 p = item->argument;
869 if (p) {
870 if (*p == '+') {
871 mode = MODE_ADD;
872 p++;
873 } else if (*p == '-') {
874 mode = MODE_DEL;
875 p++;
876 } else if (*p == '=') {
877 mode = MODE_SET;
878 p++;
879 }
880 }
881
882 if (isempty(p) && mode != MODE_SET) {
883 log_error("Setting file attribute on '%s' needs an attribute specification.", item->path);
884 return -EINVAL;
885 }
886
887 for (; p && *p ; p++) {
888 unsigned i, v;
889
890 for (i = 0; i < ELEMENTSOF(attributes); i++)
891 if (*p == attributes[i].character)
892 break;
893
894 if (i >= ELEMENTSOF(attributes)) {
895 log_error("Unknown file attribute '%c' on '%s'.", *p, item->path);
896 return -EINVAL;
897 }
898
899 v = attributes[i].value;
900
901 if (mode == MODE_ADD || mode == MODE_SET)
902 value |= v;
903 else
904 value &= ~v;
905
906 mask |= v;
907 }
908
909 if (mode == MODE_SET)
910 mask |= ATTRIBUTES_ALL;
911
912 assert(mask != 0);
913
914 item->attribute_mask = mask;
915 item->attribute_value = value;
916 item->attribute_set = true;
917
918 return 0;
919 }
920
921 static int path_set_attribute(Item *item, const char *path) {
922 _cleanup_close_ int fd = -1;
923 struct stat st;
924 unsigned f;
925 int r;
926
927 if (!item->attribute_set || item->attribute_mask == 0)
928 return 0;
929
930 fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW);
931 if (fd < 0) {
932 if (errno == ELOOP)
933 return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path);
934
935 return log_error_errno(errno, "Cannot open '%s': %m", path);
936 }
937
938 if (fstat(fd, &st) < 0)
939 return log_error_errno(errno, "Cannot stat '%s': %m", path);
940
941 /* Issuing the file attribute ioctls on device nodes is not
942 * safe, as that will be delivered to the drivers, not the
943 * file system containing the device node. */
944 if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) {
945 log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path);
946 return -EINVAL;
947 }
948
949 f = item->attribute_value & item->attribute_mask;
950
951 /* Mask away directory-specific flags */
952 if (!S_ISDIR(st.st_mode))
953 f &= ~FS_DIRSYNC_FL;
954
955 r = chattr_fd(fd, f, item->attribute_mask);
956 if (r < 0)
957 log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING,
958 r,
959 "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m",
960 path, item->attribute_value, item->attribute_mask);
961
962 return 0;
963 }
964
965 static int write_one_file(Item *i, const char *path) {
966 _cleanup_close_ int fd = -1;
967 int flags, r = 0;
968 struct stat st;
969
970 assert(i);
971 assert(path);
972
973 flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW :
974 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0;
975
976 RUN_WITH_UMASK(0000) {
977 mac_selinux_create_file_prepare(path, S_IFREG);
978 fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode);
979 mac_selinux_create_file_clear();
980 }
981
982 if (fd < 0) {
983 if (i->type == WRITE_FILE && errno == ENOENT) {
984 log_debug_errno(errno, "Not writing \"%s\": %m", path);
985 return 0;
986 }
987
988 r = -errno;
989 if (!i->argument && errno == EROFS && stat(path, &st) == 0 &&
990 (i->type == CREATE_FILE || st.st_size == 0))
991 goto check_mode;
992
993 return log_error_errno(r, "Failed to create file %s: %m", path);
994 }
995
996 if (i->argument) {
997 _cleanup_free_ char *unescaped = NULL, *replaced = NULL;
998
999 log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path);
1000
1001 r = cunescape(i->argument, 0, &unescaped);
1002 if (r < 0)
1003 return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument);
1004
1005 r = specifier_printf(unescaped, specifier_table, NULL, &replaced);
1006 if (r < 0)
1007 return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped);
1008
1009 r = loop_write(fd, replaced, strlen(replaced), false);
1010 if (r < 0)
1011 return log_error_errno(r, "Failed to write file \"%s\": %m", path);
1012 } else
1013 log_debug("\"%s\" has been created.", path);
1014
1015 fd = safe_close(fd);
1016
1017 if (stat(path, &st) < 0)
1018 return log_error_errno(errno, "stat(%s) failed: %m", path);
1019
1020 check_mode:
1021 if (!S_ISREG(st.st_mode)) {
1022 log_error("%s is not a file.", path);
1023 return -EEXIST;
1024 }
1025
1026 r = path_set_perms(i, path);
1027 if (r < 0)
1028 return r;
1029
1030 return 0;
1031 }
1032
1033 typedef int (*action_t)(Item *, const char *);
1034
1035 static int item_do_children(Item *i, const char *path, action_t action) {
1036 _cleanup_closedir_ DIR *d;
1037 int r = 0;
1038
1039 assert(i);
1040 assert(path);
1041
1042 /* This returns the first error we run into, but nevertheless
1043 * tries to go on */
1044
1045 d = opendir_nomod(path);
1046 if (!d)
1047 return errno == ENOENT || errno == ENOTDIR ? 0 : -errno;
1048
1049 for (;;) {
1050 _cleanup_free_ char *p = NULL;
1051 struct dirent *de;
1052 int q;
1053
1054 errno = 0;
1055 de = readdir(d);
1056 if (!de) {
1057 if (errno != 0 && r == 0)
1058 r = -errno;
1059
1060 break;
1061 }
1062
1063 if (STR_IN_SET(de->d_name, ".", ".."))
1064 continue;
1065
1066 p = strjoin(path, "/", de->d_name, NULL);
1067 if (!p)
1068 return -ENOMEM;
1069
1070 q = action(i, p);
1071 if (q < 0 && q != -ENOENT && r == 0)
1072 r = q;
1073
1074 if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) {
1075 q = item_do_children(i, p, action);
1076 if (q < 0 && r == 0)
1077 r = q;
1078 }
1079 }
1080
1081 return r;
1082 }
1083
1084 static int glob_item(Item *i, action_t action, bool recursive) {
1085 _cleanup_globfree_ glob_t g = {
1086 .gl_closedir = (void (*)(void *)) closedir,
1087 .gl_readdir = (struct dirent *(*)(void *)) readdir,
1088 .gl_opendir = (void *(*)(const char *)) opendir_nomod,
1089 .gl_lstat = lstat,
1090 .gl_stat = stat,
1091 };
1092 int r = 0, k;
1093 char **fn;
1094
1095 errno = 0;
1096 k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g);
1097 if (k != 0 && k != GLOB_NOMATCH)
1098 return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path);
1099
1100 STRV_FOREACH(fn, g.gl_pathv) {
1101 k = action(i, *fn);
1102 if (k < 0 && r == 0)
1103 r = k;
1104
1105 if (recursive) {
1106 k = item_do_children(i, *fn, action);
1107 if (k < 0 && r == 0)
1108 r = k;
1109 }
1110 }
1111
1112 return r;
1113 }
1114
1115 typedef enum {
1116 CREATION_NORMAL,
1117 CREATION_EXISTING,
1118 CREATION_FORCE,
1119 _CREATION_MODE_MAX,
1120 _CREATION_MODE_INVALID = -1
1121 } CreationMode;
1122
1123 static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = {
1124 [CREATION_NORMAL] = "Created",
1125 [CREATION_EXISTING] = "Found existing",
1126 [CREATION_FORCE] = "Created replacement",
1127 };
1128
1129 DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode);
1130
1131 static int create_item(Item *i) {
1132 _cleanup_free_ char *resolved = NULL;
1133 struct stat st;
1134 int r = 0;
1135 CreationMode creation;
1136
1137 assert(i);
1138
1139 log_debug("Running create action for entry %c %s", (char) i->type, i->path);
1140
1141 switch (i->type) {
1142
1143 case IGNORE_PATH:
1144 case IGNORE_DIRECTORY_PATH:
1145 case REMOVE_PATH:
1146 case RECURSIVE_REMOVE_PATH:
1147 return 0;
1148
1149 case CREATE_FILE:
1150 case TRUNCATE_FILE:
1151 r = write_one_file(i, i->path);
1152 if (r < 0)
1153 return r;
1154 break;
1155
1156 case COPY_FILES: {
1157 r = specifier_printf(i->argument, specifier_table, NULL, &resolved);
1158 if (r < 0)
1159 return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument);
1160
1161 log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path);
1162 r = copy_tree(resolved, i->path, false);
1163
1164 if (r == -EROFS && stat(i->path, &st) == 0)
1165 r = -EEXIST;
1166
1167 if (r < 0) {
1168 struct stat a, b;
1169
1170 if (r != -EEXIST)
1171 return log_error_errno(r, "Failed to copy files to %s: %m", i->path);
1172
1173 if (stat(resolved, &a) < 0)
1174 return log_error_errno(errno, "stat(%s) failed: %m", resolved);
1175
1176 if (stat(i->path, &b) < 0)
1177 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
1178
1179 if ((a.st_mode ^ b.st_mode) & S_IFMT) {
1180 log_debug("Can't copy to %s, file exists already and is of different type", i->path);
1181 return 0;
1182 }
1183 }
1184
1185 r = path_set_perms(i, i->path);
1186 if (r < 0)
1187 return r;
1188
1189 break;
1190
1191 case WRITE_FILE:
1192 r = glob_item(i, write_one_file, false);
1193 if (r < 0)
1194 return r;
1195
1196 break;
1197
1198 case CREATE_DIRECTORY:
1199 case TRUNCATE_DIRECTORY:
1200 case CREATE_SUBVOLUME:
1201
1202 RUN_WITH_UMASK(0000)
1203 mkdir_parents_label(i->path, 0755);
1204
1205 if (i->type == CREATE_SUBVOLUME)
1206 RUN_WITH_UMASK((~i->mode) & 0777) {
1207 r = btrfs_subvol_make(i->path);
1208 log_debug_errno(r, "Creating subvolume \"%s\": %m", i->path);
1209 }
1210 else
1211 r = 0;
1212
1213 if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY)
1214 RUN_WITH_UMASK(0000)
1215 r = mkdir_label(i->path, i->mode);
1216
1217 if (r < 0) {
1218 int k;
1219
1220 if (r != -EEXIST && r != -EROFS)
1221 return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path);
1222
1223 k = is_dir(i->path, false);
1224 if (k == -ENOENT && r == -EROFS)
1225 return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path);
1226 if (k < 0)
1227 return log_error_errno(k, "Failed to check if %s exists: %m", i->path);
1228 if (!k) {
1229 log_warning("\"%s\" already exists and is not a directory.", i->path);
1230 return 0;
1231 }
1232
1233 creation = CREATION_EXISTING;
1234 } else
1235 creation = CREATION_NORMAL;
1236
1237 log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path);
1238
1239 r = path_set_perms(i, i->path);
1240 if (r < 0)
1241 return r;
1242
1243 break;
1244
1245 case CREATE_FIFO:
1246
1247 RUN_WITH_UMASK(0000) {
1248 mac_selinux_create_file_prepare(i->path, S_IFIFO);
1249 r = mkfifo(i->path, i->mode);
1250 mac_selinux_create_file_clear();
1251 }
1252
1253 if (r < 0) {
1254 if (errno != EEXIST)
1255 return log_error_errno(errno, "Failed to create fifo %s: %m", i->path);
1256
1257 if (lstat(i->path, &st) < 0)
1258 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
1259
1260 if (!S_ISFIFO(st.st_mode)) {
1261
1262 if (i->force) {
1263 RUN_WITH_UMASK(0000) {
1264 mac_selinux_create_file_prepare(i->path, S_IFIFO);
1265 r = mkfifo_atomic(i->path, i->mode);
1266 mac_selinux_create_file_clear();
1267 }
1268
1269 if (r < 0)
1270 return log_error_errno(r, "Failed to create fifo %s: %m", i->path);
1271 creation = CREATION_FORCE;
1272 } else {
1273 log_warning("\"%s\" already exists and is not a fifo.", i->path);
1274 return 0;
1275 }
1276 } else
1277 creation = CREATION_EXISTING;
1278 } else
1279 creation = CREATION_NORMAL;
1280 log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path);
1281
1282 r = path_set_perms(i, i->path);
1283 if (r < 0)
1284 return r;
1285
1286 break;
1287 }
1288
1289 case CREATE_SYMLINK: {
1290 r = specifier_printf(i->argument, specifier_table, NULL, &resolved);
1291 if (r < 0)
1292 return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument);
1293
1294 mac_selinux_create_file_prepare(i->path, S_IFLNK);
1295 r = symlink(resolved, i->path);
1296 mac_selinux_create_file_clear();
1297
1298 if (r < 0) {
1299 _cleanup_free_ char *x = NULL;
1300
1301 if (errno != EEXIST)
1302 return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path);
1303
1304 r = readlink_malloc(i->path, &x);
1305 if (r < 0 || !streq(resolved, x)) {
1306
1307 if (i->force) {
1308 mac_selinux_create_file_prepare(i->path, S_IFLNK);
1309 r = symlink_atomic(resolved, i->path);
1310 mac_selinux_create_file_clear();
1311
1312 if (r < 0)
1313 return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path);
1314
1315 creation = CREATION_FORCE;
1316 } else {
1317 log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path);
1318 return 0;
1319 }
1320 } else
1321 creation = CREATION_EXISTING;
1322 } else
1323
1324 creation = CREATION_NORMAL;
1325 log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path);
1326 break;
1327 }
1328
1329 case CREATE_BLOCK_DEVICE:
1330 case CREATE_CHAR_DEVICE: {
1331 mode_t file_type;
1332
1333 if (have_effective_cap(CAP_MKNOD) == 0) {
1334 /* In a container we lack CAP_MKNOD. We
1335 shouldn't attempt to create the device node in
1336 that case to avoid noise, and we don't support
1337 virtualized devices in containers anyway. */
1338
1339 log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
1340 return 0;
1341 }
1342
1343 file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR;
1344
1345 RUN_WITH_UMASK(0000) {
1346 mac_selinux_create_file_prepare(i->path, file_type);
1347 r = mknod(i->path, i->mode | file_type, i->major_minor);
1348 mac_selinux_create_file_clear();
1349 }
1350
1351 if (r < 0) {
1352 if (errno == EPERM) {
1353 log_debug("We lack permissions, possibly because of cgroup configuration; "
1354 "skipping creation of device node %s.", i->path);
1355 return 0;
1356 }
1357
1358 if (errno != EEXIST)
1359 return log_error_errno(errno, "Failed to create device node %s: %m", i->path);
1360
1361 if (lstat(i->path, &st) < 0)
1362 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
1363
1364 if ((st.st_mode & S_IFMT) != file_type) {
1365
1366 if (i->force) {
1367
1368 RUN_WITH_UMASK(0000) {
1369 mac_selinux_create_file_prepare(i->path, file_type);
1370 r = mknod_atomic(i->path, i->mode | file_type, i->major_minor);
1371 mac_selinux_create_file_clear();
1372 }
1373
1374 if (r < 0)
1375 return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path);
1376 creation = CREATION_FORCE;
1377 } else {
1378 log_debug("%s is not a device node.", i->path);
1379 return 0;
1380 }
1381 } else
1382 creation = CREATION_EXISTING;
1383 } else
1384 creation = CREATION_NORMAL;
1385
1386 log_debug("%s %s device node \"%s\" %u:%u.",
1387 creation_mode_verb_to_string(creation),
1388 i->type == CREATE_BLOCK_DEVICE ? "block" : "char",
1389 i->path, major(i->mode), minor(i->mode));
1390
1391 r = path_set_perms(i, i->path);
1392 if (r < 0)
1393 return r;
1394
1395 break;
1396 }
1397
1398 case ADJUST_MODE:
1399 case RELABEL_PATH:
1400 r = glob_item(i, path_set_perms, false);
1401 if (r < 0)
1402 return r;
1403 break;
1404
1405 case RECURSIVE_RELABEL_PATH:
1406 r = glob_item(i, path_set_perms, true);
1407 if (r < 0)
1408 return r;
1409 break;
1410
1411 case SET_XATTR:
1412 r = glob_item(i, path_set_xattrs, false);
1413 if (r < 0)
1414 return r;
1415 break;
1416
1417 case RECURSIVE_SET_XATTR:
1418 r = glob_item(i, path_set_xattrs, true);
1419 if (r < 0)
1420 return r;
1421 break;
1422
1423 case SET_ACL:
1424 r = glob_item(i, path_set_acls, false);
1425 if (r < 0)
1426 return r;
1427 break;
1428
1429 case RECURSIVE_SET_ACL:
1430 r = glob_item(i, path_set_acls, true);
1431 if (r < 0)
1432 return r;
1433 break;
1434
1435 case SET_ATTRIBUTE:
1436 r = glob_item(i, path_set_attribute, false);
1437 if (r < 0)
1438 return r;
1439 break;
1440
1441 case RECURSIVE_SET_ATTRIBUTE:
1442 r = glob_item(i, path_set_attribute, true);
1443 if (r < 0)
1444 return r;
1445 break;
1446 }
1447
1448 return 0;
1449 }
1450
1451 static int remove_item_instance(Item *i, const char *instance) {
1452 int r;
1453
1454 assert(i);
1455
1456 switch (i->type) {
1457
1458 case REMOVE_PATH:
1459 if (remove(instance) < 0 && errno != ENOENT)
1460 return log_error_errno(errno, "rm(%s): %m", instance);
1461
1462 break;
1463
1464 case TRUNCATE_DIRECTORY:
1465 case RECURSIVE_REMOVE_PATH:
1466 /* FIXME: we probably should use dir_cleanup() here
1467 * instead of rm_rf() so that 'x' is honoured. */
1468 log_debug("rm -rf \"%s\"", instance);
1469 r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL);
1470 if (r < 0 && r != -ENOENT)
1471 return log_error_errno(r, "rm_rf(%s): %m", instance);
1472
1473 break;
1474
1475 default:
1476 assert_not_reached("wut?");
1477 }
1478
1479 return 0;
1480 }
1481
1482 static int remove_item(Item *i) {
1483 int r = 0;
1484
1485 assert(i);
1486
1487 log_debug("Running remove action for entry %c %s", (char) i->type, i->path);
1488
1489 switch (i->type) {
1490
1491 case CREATE_FILE:
1492 case TRUNCATE_FILE:
1493 case CREATE_DIRECTORY:
1494 case CREATE_SUBVOLUME:
1495 case CREATE_FIFO:
1496 case CREATE_SYMLINK:
1497 case CREATE_CHAR_DEVICE:
1498 case CREATE_BLOCK_DEVICE:
1499 case IGNORE_PATH:
1500 case IGNORE_DIRECTORY_PATH:
1501 case ADJUST_MODE:
1502 case RELABEL_PATH:
1503 case RECURSIVE_RELABEL_PATH:
1504 case WRITE_FILE:
1505 case COPY_FILES:
1506 case SET_XATTR:
1507 case RECURSIVE_SET_XATTR:
1508 case SET_ACL:
1509 case RECURSIVE_SET_ACL:
1510 case SET_ATTRIBUTE:
1511 case RECURSIVE_SET_ATTRIBUTE:
1512 break;
1513
1514 case REMOVE_PATH:
1515 case TRUNCATE_DIRECTORY:
1516 case RECURSIVE_REMOVE_PATH:
1517 r = glob_item(i, remove_item_instance, false);
1518 break;
1519 }
1520
1521 return r;
1522 }
1523
1524 static int clean_item_instance(Item *i, const char* instance) {
1525 _cleanup_closedir_ DIR *d = NULL;
1526 struct stat s, ps;
1527 bool mountpoint;
1528 usec_t cutoff, n;
1529 char timestamp[FORMAT_TIMESTAMP_MAX];
1530
1531 assert(i);
1532
1533 if (!i->age_set)
1534 return 0;
1535
1536 n = now(CLOCK_REALTIME);
1537 if (n < i->age)
1538 return 0;
1539
1540 cutoff = n - i->age;
1541
1542 d = opendir_nomod(instance);
1543 if (!d) {
1544 if (errno == ENOENT || errno == ENOTDIR) {
1545 log_debug_errno(errno, "Directory \"%s\": %m", instance);
1546 return 0;
1547 }
1548
1549 log_error_errno(errno, "Failed to open directory %s: %m", instance);
1550 return -errno;
1551 }
1552
1553 if (fstat(dirfd(d), &s) < 0)
1554 return log_error_errno(errno, "stat(%s) failed: %m", i->path);
1555
1556 if (!S_ISDIR(s.st_mode)) {
1557 log_error("%s is not a directory.", i->path);
1558 return -ENOTDIR;
1559 }
1560
1561 if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0)
1562 return log_error_errno(errno, "stat(%s/..) failed: %m", i->path);
1563
1564 mountpoint = s.st_dev != ps.st_dev ||
1565 (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
1566
1567 log_debug("Cleanup threshold for %s \"%s\" is %s",
1568 mountpoint ? "mount point" : "directory",
1569 instance,
1570 format_timestamp_us(timestamp, sizeof(timestamp), cutoff));
1571
1572 return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
1573 MAX_DEPTH, i->keep_first_level);
1574 }
1575
1576 static int clean_item(Item *i) {
1577 int r = 0;
1578
1579 assert(i);
1580
1581 log_debug("Running clean action for entry %c %s", (char) i->type, i->path);
1582
1583 switch (i->type) {
1584 case CREATE_DIRECTORY:
1585 case CREATE_SUBVOLUME:
1586 case TRUNCATE_DIRECTORY:
1587 case IGNORE_PATH:
1588 case COPY_FILES:
1589 clean_item_instance(i, i->path);
1590 break;
1591 case IGNORE_DIRECTORY_PATH:
1592 r = glob_item(i, clean_item_instance, false);
1593 break;
1594 default:
1595 break;
1596 }
1597
1598 return r;
1599 }
1600
1601 static int process_item_array(ItemArray *array);
1602
1603 static int process_item(Item *i) {
1604 int r, q, p, t = 0;
1605 _cleanup_free_ char *prefix = NULL;
1606
1607 assert(i);
1608
1609 if (i->done)
1610 return 0;
1611
1612 i->done = true;
1613
1614 prefix = malloc(strlen(i->path) + 1);
1615 if (!prefix)
1616 return log_oom();
1617
1618 PATH_FOREACH_PREFIX(prefix, i->path) {
1619 ItemArray *j;
1620
1621 j = ordered_hashmap_get(items, prefix);
1622 if (j) {
1623 int s;
1624
1625 s = process_item_array(j);
1626 if (s < 0 && t == 0)
1627 t = s;
1628 }
1629 }
1630
1631 r = arg_create ? create_item(i) : 0;
1632 q = arg_remove ? remove_item(i) : 0;
1633 p = arg_clean ? clean_item(i) : 0;
1634
1635 return t < 0 ? t :
1636 r < 0 ? r :
1637 q < 0 ? q :
1638 p;
1639 }
1640
1641 static int process_item_array(ItemArray *array) {
1642 unsigned n;
1643 int r = 0, k;
1644
1645 assert(array);
1646
1647 for (n = 0; n < array->count; n++) {
1648 k = process_item(array->items + n);
1649 if (k < 0 && r == 0)
1650 r = k;
1651 }
1652
1653 return r;
1654 }
1655
1656 static void item_free_contents(Item *i) {
1657 assert(i);
1658 free(i->path);
1659 free(i->argument);
1660 strv_free(i->xattrs);
1661
1662 #ifdef HAVE_ACL
1663 acl_free(i->acl_access);
1664 acl_free(i->acl_default);
1665 #endif
1666 }
1667
1668 static void item_array_free(ItemArray *a) {
1669 unsigned n;
1670
1671 if (!a)
1672 return;
1673
1674 for (n = 0; n < a->count; n++)
1675 item_free_contents(a->items + n);
1676 free(a->items);
1677 free(a);
1678 }
1679
1680 static int item_compare(const void *a, const void *b) {
1681 const Item *x = a, *y = b;
1682
1683 /* Make sure that the ownership taking item is put first, so
1684 * that we first create the node, and then can adjust it */
1685
1686 if (takes_ownership(x->type) && !takes_ownership(y->type))
1687 return -1;
1688 if (!takes_ownership(x->type) && takes_ownership(y->type))
1689 return 1;
1690
1691 return (int) x->type - (int) y->type;
1692 }
1693
1694 static bool item_compatible(Item *a, Item *b) {
1695 assert(a);
1696 assert(b);
1697 assert(streq(a->path, b->path));
1698
1699 if (takes_ownership(a->type) && takes_ownership(b->type))
1700 /* check if the items are the same */
1701 return streq_ptr(a->argument, b->argument) &&
1702
1703 a->uid_set == b->uid_set &&
1704 a->uid == b->uid &&
1705
1706 a->gid_set == b->gid_set &&
1707 a->gid == b->gid &&
1708
1709 a->mode_set == b->mode_set &&
1710 a->mode == b->mode &&
1711
1712 a->age_set == b->age_set &&
1713 a->age == b->age &&
1714
1715 a->mask_perms == b->mask_perms &&
1716
1717 a->keep_first_level == b->keep_first_level &&
1718
1719 a->major_minor == b->major_minor;
1720
1721 return true;
1722 }
1723
1724 static bool should_include_path(const char *path) {
1725 char **prefix;
1726
1727 STRV_FOREACH(prefix, arg_exclude_prefixes)
1728 if (path_startswith(path, *prefix)) {
1729 log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.",
1730 path, *prefix);
1731 return false;
1732 }
1733
1734 STRV_FOREACH(prefix, arg_include_prefixes)
1735 if (path_startswith(path, *prefix)) {
1736 log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix);
1737 return true;
1738 }
1739
1740 /* no matches, so we should include this path only if we
1741 * have no whitelist at all */
1742 if (strv_length(arg_include_prefixes) == 0)
1743 return true;
1744
1745 log_debug("Entry \"%s\" does not match any include prefix, skipping.", path);
1746 return false;
1747 }
1748
1749 static int parse_line(const char *fname, unsigned line, const char *buffer) {
1750
1751 _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
1752 _cleanup_(item_free_contents) Item i = {};
1753 ItemArray *existing;
1754 OrderedHashmap *h;
1755 int r, pos;
1756 bool force = false, boot = false;
1757
1758 assert(fname);
1759 assert(line >= 1);
1760 assert(buffer);
1761
1762 r = extract_many_words(
1763 &buffer,
1764 NULL,
1765 EXTRACT_QUOTES,
1766 &action,
1767 &path,
1768 &mode,
1769 &user,
1770 &group,
1771 &age,
1772 NULL);
1773 if (r < 0)
1774 return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line);
1775 else if (r < 2) {
1776 log_error("[%s:%u] Syntax error.", fname, line);
1777 return -EIO;
1778 }
1779
1780 if (!isempty(buffer) && !streq(buffer, "-")) {
1781 i.argument = strdup(buffer);
1782 if (!i.argument)
1783 return log_oom();
1784 }
1785
1786 if (isempty(action)) {
1787 log_error("[%s:%u] Command too short '%s'.", fname, line, action);
1788 return -EINVAL;
1789 }
1790
1791 for (pos = 1; action[pos]; pos++) {
1792 if (action[pos] == '!' && !boot)
1793 boot = true;
1794 else if (action[pos] == '+' && !force)
1795 force = true;
1796 else {
1797 log_error("[%s:%u] Unknown modifiers in command '%s'",
1798 fname, line, action);
1799 return -EINVAL;
1800 }
1801 }
1802
1803 if (boot && !arg_boot) {
1804 log_debug("Ignoring entry %s \"%s\" because --boot is not specified.",
1805 action, path);
1806 return 0;
1807 }
1808
1809 i.type = action[0];
1810 i.force = force;
1811
1812 r = specifier_printf(path, specifier_table, NULL, &i.path);
1813 if (r < 0) {
1814 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
1815 return r;
1816 }
1817
1818 switch (i.type) {
1819
1820 case CREATE_DIRECTORY:
1821 case CREATE_SUBVOLUME:
1822 case TRUNCATE_DIRECTORY:
1823 case CREATE_FIFO:
1824 case IGNORE_PATH:
1825 case IGNORE_DIRECTORY_PATH:
1826 case REMOVE_PATH:
1827 case RECURSIVE_REMOVE_PATH:
1828 case ADJUST_MODE:
1829 case RELABEL_PATH:
1830 case RECURSIVE_RELABEL_PATH:
1831 if (i.argument)
1832 log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type);
1833
1834 break;
1835
1836 case CREATE_FILE:
1837 case TRUNCATE_FILE:
1838 break;
1839
1840 case CREATE_SYMLINK:
1841 if (!i.argument) {
1842 i.argument = strappend("/usr/share/factory/", i.path);
1843 if (!i.argument)
1844 return log_oom();
1845 }
1846 break;
1847
1848 case WRITE_FILE:
1849 if (!i.argument) {
1850 log_error("[%s:%u] Write file requires argument.", fname, line);
1851 return -EBADMSG;
1852 }
1853 break;
1854
1855 case COPY_FILES:
1856 if (!i.argument) {
1857 i.argument = strappend("/usr/share/factory/", i.path);
1858 if (!i.argument)
1859 return log_oom();
1860 } else if (!path_is_absolute(i.argument)) {
1861 log_error("[%s:%u] Source path is not absolute.", fname, line);
1862 return -EBADMSG;
1863 }
1864
1865 path_kill_slashes(i.argument);
1866 break;
1867
1868 case CREATE_CHAR_DEVICE:
1869 case CREATE_BLOCK_DEVICE: {
1870 unsigned major, minor;
1871
1872 if (!i.argument) {
1873 log_error("[%s:%u] Device file requires argument.", fname, line);
1874 return -EBADMSG;
1875 }
1876
1877 if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) {
1878 log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument);
1879 return -EBADMSG;
1880 }
1881
1882 i.major_minor = makedev(major, minor);
1883 break;
1884 }
1885
1886 case SET_XATTR:
1887 case RECURSIVE_SET_XATTR:
1888 if (!i.argument) {
1889 log_error("[%s:%u] Set extended attribute requires argument.", fname, line);
1890 return -EBADMSG;
1891 }
1892 r = parse_xattrs_from_arg(&i);
1893 if (r < 0)
1894 return r;
1895 break;
1896
1897 case SET_ACL:
1898 case RECURSIVE_SET_ACL:
1899 if (!i.argument) {
1900 log_error("[%s:%u] Set ACLs requires argument.", fname, line);
1901 return -EBADMSG;
1902 }
1903 r = parse_acls_from_arg(&i);
1904 if (r < 0)
1905 return r;
1906 break;
1907
1908 case SET_ATTRIBUTE:
1909 case RECURSIVE_SET_ATTRIBUTE:
1910 if (!i.argument) {
1911 log_error("[%s:%u] Set file attribute requires argument.", fname, line);
1912 return -EBADMSG;
1913 }
1914 r = parse_attribute_from_arg(&i);
1915 if (r < 0)
1916 return r;
1917 break;
1918
1919 default:
1920 log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type);
1921 return -EBADMSG;
1922 }
1923
1924 if (!path_is_absolute(i.path)) {
1925 log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path);
1926 return -EBADMSG;
1927 }
1928
1929 path_kill_slashes(i.path);
1930
1931 if (!should_include_path(i.path))
1932 return 0;
1933
1934 if (arg_root) {
1935 char *p;
1936
1937 p = prefix_root(arg_root, i.path);
1938 if (!p)
1939 return log_oom();
1940
1941 free(i.path);
1942 i.path = p;
1943 }
1944
1945 if (!isempty(user) && !streq(user, "-")) {
1946 const char *u = user;
1947
1948 r = get_user_creds(&u, &i.uid, NULL, NULL, NULL);
1949 if (r < 0) {
1950 log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
1951 return r;
1952 }
1953
1954 i.uid_set = true;
1955 }
1956
1957 if (!isempty(group) && !streq(group, "-")) {
1958 const char *g = group;
1959
1960 r = get_group_creds(&g, &i.gid);
1961 if (r < 0) {
1962 log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
1963 return r;
1964 }
1965
1966 i.gid_set = true;
1967 }
1968
1969 if (!isempty(mode) && !streq(mode, "-")) {
1970 const char *mm = mode;
1971 unsigned m;
1972
1973 if (*mm == '~') {
1974 i.mask_perms = true;
1975 mm++;
1976 }
1977
1978 if (parse_mode(mm, &m) < 0) {
1979 log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
1980 return -EBADMSG;
1981 }
1982
1983 i.mode = m;
1984 i.mode_set = true;
1985 } else
1986 i.mode = IN_SET(i.type, CREATE_DIRECTORY, CREATE_SUBVOLUME, TRUNCATE_DIRECTORY)
1987 ? 0755 : 0644;
1988
1989 if (!isempty(age) && !streq(age, "-")) {
1990 const char *a = age;
1991
1992 if (*a == '~') {
1993 i.keep_first_level = true;
1994 a++;
1995 }
1996
1997 if (parse_sec(a, &i.age) < 0) {
1998 log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
1999 return -EBADMSG;
2000 }
2001
2002 i.age_set = true;
2003 }
2004
2005 h = needs_glob(i.type) ? globs : items;
2006
2007 existing = ordered_hashmap_get(h, i.path);
2008 if (existing) {
2009 unsigned n;
2010
2011 for (n = 0; n < existing->count; n++) {
2012 if (!item_compatible(existing->items + n, &i)) {
2013 log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.",
2014 fname, line, i.path);
2015 return 0;
2016 }
2017 }
2018 } else {
2019 existing = new0(ItemArray, 1);
2020 r = ordered_hashmap_put(h, i.path, existing);
2021 if (r < 0)
2022 return log_oom();
2023 }
2024
2025 if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1))
2026 return log_oom();
2027
2028 memcpy(existing->items + existing->count++, &i, sizeof(i));
2029
2030 /* Sort item array, to enforce stable ordering of application */
2031 qsort_safe(existing->items, existing->count, sizeof(Item), item_compare);
2032
2033 zero(i);
2034 return 0;
2035 }
2036
2037 static void help(void) {
2038 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
2039 "Creates, deletes and cleans up volatile and temporary files and directories.\n\n"
2040 " -h --help Show this help\n"
2041 " --version Show package version\n"
2042 " --create Create marked files/directories\n"
2043 " --clean Clean up marked directories\n"
2044 " --remove Remove marked files/directories\n"
2045 " --boot Execute actions only safe at boot\n"
2046 " --prefix=PATH Only apply rules with the specified prefix\n"
2047 " --exclude-prefix=PATH Ignore rules with the specified prefix\n"
2048 " --root=PATH Operate on an alternate filesystem root\n",
2049 program_invocation_short_name);
2050 }
2051
2052 static int parse_argv(int argc, char *argv[]) {
2053
2054 enum {
2055 ARG_VERSION = 0x100,
2056 ARG_CREATE,
2057 ARG_CLEAN,
2058 ARG_REMOVE,
2059 ARG_BOOT,
2060 ARG_PREFIX,
2061 ARG_EXCLUDE_PREFIX,
2062 ARG_ROOT,
2063 };
2064
2065 static const struct option options[] = {
2066 { "help", no_argument, NULL, 'h' },
2067 { "version", no_argument, NULL, ARG_VERSION },
2068 { "create", no_argument, NULL, ARG_CREATE },
2069 { "clean", no_argument, NULL, ARG_CLEAN },
2070 { "remove", no_argument, NULL, ARG_REMOVE },
2071 { "boot", no_argument, NULL, ARG_BOOT },
2072 { "prefix", required_argument, NULL, ARG_PREFIX },
2073 { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX },
2074 { "root", required_argument, NULL, ARG_ROOT },
2075 {}
2076 };
2077
2078 int c;
2079
2080 assert(argc >= 0);
2081 assert(argv);
2082
2083 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
2084
2085 switch (c) {
2086
2087 case 'h':
2088 help();
2089 return 0;
2090
2091 case ARG_VERSION:
2092 return version();
2093
2094 case ARG_CREATE:
2095 arg_create = true;
2096 break;
2097
2098 case ARG_CLEAN:
2099 arg_clean = true;
2100 break;
2101
2102 case ARG_REMOVE:
2103 arg_remove = true;
2104 break;
2105
2106 case ARG_BOOT:
2107 arg_boot = true;
2108 break;
2109
2110 case ARG_PREFIX:
2111 if (strv_push(&arg_include_prefixes, optarg) < 0)
2112 return log_oom();
2113 break;
2114
2115 case ARG_EXCLUDE_PREFIX:
2116 if (strv_push(&arg_exclude_prefixes, optarg) < 0)
2117 return log_oom();
2118 break;
2119
2120 case ARG_ROOT:
2121 free(arg_root);
2122 arg_root = path_make_absolute_cwd(optarg);
2123 if (!arg_root)
2124 return log_oom();
2125
2126 path_kill_slashes(arg_root);
2127 break;
2128
2129 case '?':
2130 return -EINVAL;
2131
2132 default:
2133 assert_not_reached("Unhandled option");
2134 }
2135
2136 if (!arg_clean && !arg_create && !arg_remove) {
2137 log_error("You need to specify at least one of --clean, --create or --remove.");
2138 return -EINVAL;
2139 }
2140
2141 return 1;
2142 }
2143
2144 static int read_config_file(const char *fn, bool ignore_enoent) {
2145 _cleanup_fclose_ FILE *f = NULL;
2146 char line[LINE_MAX];
2147 Iterator iterator;
2148 unsigned v = 0;
2149 Item *i;
2150 int r;
2151
2152 assert(fn);
2153
2154 r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f);
2155 if (r < 0) {
2156 if (ignore_enoent && r == -ENOENT) {
2157 log_debug_errno(r, "Failed to open \"%s\": %m", fn);
2158 return 0;
2159 }
2160
2161 return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn);
2162 }
2163 log_debug("Reading config file \"%s\".", fn);
2164
2165 FOREACH_LINE(line, f, break) {
2166 char *l;
2167 int k;
2168
2169 v++;
2170
2171 l = strstrip(line);
2172 if (*l == '#' || *l == 0)
2173 continue;
2174
2175 k = parse_line(fn, v, l);
2176 if (k < 0 && r == 0)
2177 r = k;
2178 }
2179
2180 /* we have to determine age parameter for each entry of type X */
2181 ORDERED_HASHMAP_FOREACH(i, globs, iterator) {
2182 Iterator iter;
2183 Item *j, *candidate_item = NULL;
2184
2185 if (i->type != IGNORE_DIRECTORY_PATH)
2186 continue;
2187
2188 ORDERED_HASHMAP_FOREACH(j, items, iter) {
2189 if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY && j->type != CREATE_SUBVOLUME)
2190 continue;
2191
2192 if (path_equal(j->path, i->path)) {
2193 candidate_item = j;
2194 break;
2195 }
2196
2197 if ((!candidate_item && path_startswith(i->path, j->path)) ||
2198 (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
2199 candidate_item = j;
2200 }
2201
2202 if (candidate_item && candidate_item->age_set) {
2203 i->age = candidate_item->age;
2204 i->age_set = true;
2205 }
2206 }
2207
2208 if (ferror(f)) {
2209 log_error_errno(errno, "Failed to read from file %s: %m", fn);
2210 if (r == 0)
2211 r = -EIO;
2212 }
2213
2214 return r;
2215 }
2216
2217 int main(int argc, char *argv[]) {
2218 int r, k;
2219 ItemArray *a;
2220 Iterator iterator;
2221
2222 r = parse_argv(argc, argv);
2223 if (r <= 0)
2224 goto finish;
2225
2226 log_set_target(LOG_TARGET_AUTO);
2227 log_parse_environment();
2228 log_open();
2229
2230 umask(0022);
2231
2232 mac_selinux_init(NULL);
2233
2234 items = ordered_hashmap_new(&string_hash_ops);
2235 globs = ordered_hashmap_new(&string_hash_ops);
2236
2237 if (!items || !globs) {
2238 r = log_oom();
2239 goto finish;
2240 }
2241
2242 r = 0;
2243
2244 if (optind < argc) {
2245 int j;
2246
2247 for (j = optind; j < argc; j++) {
2248 k = read_config_file(argv[j], false);
2249 if (k < 0 && r == 0)
2250 r = k;
2251 }
2252
2253 } else {
2254 _cleanup_strv_free_ char **files = NULL;
2255 char **f;
2256
2257 r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs);
2258 if (r < 0) {
2259 log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m");
2260 goto finish;
2261 }
2262
2263 STRV_FOREACH(f, files) {
2264 k = read_config_file(*f, true);
2265 if (k < 0 && r == 0)
2266 r = k;
2267 }
2268 }
2269
2270 /* The non-globbing ones usually create things, hence we apply
2271 * them first */
2272 ORDERED_HASHMAP_FOREACH(a, items, iterator) {
2273 k = process_item_array(a);
2274 if (k < 0 && r == 0)
2275 r = k;
2276 }
2277
2278 /* The globbing ones usually alter things, hence we apply them
2279 * second. */
2280 ORDERED_HASHMAP_FOREACH(a, globs, iterator) {
2281 k = process_item_array(a);
2282 if (k < 0 && r == 0)
2283 r = k;
2284 }
2285
2286 finish:
2287 while ((a = ordered_hashmap_steal_first(items)))
2288 item_array_free(a);
2289
2290 while ((a = ordered_hashmap_steal_first(globs)))
2291 item_array_free(a);
2292
2293 ordered_hashmap_free(items);
2294 ordered_hashmap_free(globs);
2295
2296 free(arg_include_prefixes);
2297 free(arg_exclude_prefixes);
2298 free(arg_root);
2299
2300 set_free_free(unix_sockets);
2301
2302 mac_selinux_finish();
2303
2304 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
2305 }
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