1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering, Kay Sievers
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
37 #include <sys/types.h>
38 #include <sys/param.h>
41 #include <sys/capability.h>
48 #include "path-util.h"
52 #include "conf-files.h"
53 #include "capability.h"
54 #include "specifier.h"
57 /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
58 * them in the file system. This is intended to be used to create
59 * properly owned directories beneath /tmp, /var/tmp, /run, which are
60 * volatile and hence need to be recreated on bootup. */
62 typedef enum ItemType {
63 /* These ones take file names */
67 CREATE_DIRECTORY = 'd',
68 TRUNCATE_DIRECTORY = 'D',
71 CREATE_CHAR_DEVICE = 'c',
72 CREATE_BLOCK_DEVICE = 'b',
75 /* These ones take globs */
77 IGNORE_DIRECTORY_PATH = 'X',
79 RECURSIVE_REMOVE_PATH = 'R',
81 RECURSIVE_RELABEL_PATH = 'Z'
101 bool keep_first_level:1;
104 static Hashmap *items = NULL, *globs = NULL;
105 static Set *unix_sockets = NULL;
107 static bool arg_create = false;
108 static bool arg_clean = false;
109 static bool arg_remove = false;
110 static bool arg_boot = false;
112 static char **include_prefixes = NULL;
113 static char **exclude_prefixes = NULL;
115 static const char conf_file_dirs[] =
118 "/usr/local/lib/tmpfiles.d\0"
119 "/usr/lib/tmpfiles.d\0"
120 #ifdef HAVE_SPLIT_USR
125 #define MAX_DEPTH 256
127 static bool needs_glob(ItemType t) {
128 return t == IGNORE_PATH || t == IGNORE_DIRECTORY_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_PATH;
131 static struct Item* find_glob(Hashmap *h, const char *match) {
135 HASHMAP_FOREACH(j, h, i)
136 if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
142 static void load_unix_sockets(void) {
143 _cleanup_fclose_ FILE *f = NULL;
149 /* We maintain a cache of the sockets we found in
150 * /proc/net/unix to speed things up a little. */
152 unix_sockets = set_new(string_hash_func, string_compare_func);
156 f = fopen("/proc/net/unix", "re");
161 if (!fgets(line, sizeof(line), f))
168 if (!fgets(line, sizeof(line), f))
173 p = strchr(line, ':');
181 p += strspn(p, WHITESPACE);
182 p += strcspn(p, WHITESPACE); /* skip one more word */
183 p += strspn(p, WHITESPACE);
192 path_kill_slashes(s);
194 k = set_consume(unix_sockets, s);
195 if (k < 0 && k != -EEXIST)
202 set_free_free(unix_sockets);
206 static bool unix_socket_alive(const char *fn) {
212 return !!set_get(unix_sockets, (char*) fn);
214 /* We don't know, so assume yes */
218 static int dir_is_mount_point(DIR *d, const char *subdir) {
219 struct file_handle *h;
220 int mount_id_parent, mount_id;
223 h = alloca(MAX_HANDLE_SZ);
225 h->handle_bytes = MAX_HANDLE_SZ;
226 r_p = name_to_handle_at(dirfd(d), ".", h, &mount_id_parent, 0);
230 h->handle_bytes = MAX_HANDLE_SZ;
231 r = name_to_handle_at(dirfd(d), subdir, h, &mount_id, 0);
235 /* got no handle; make no assumptions, return error */
236 if (r_p < 0 && r < 0)
239 /* got both handles; if they differ, it is a mount point */
240 if (r_p >= 0 && r >= 0)
241 return mount_id_parent != mount_id;
243 /* got only one handle; assume different mount points if one
244 * of both queries was not supported by the filesystem */
245 if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP)
254 static int dir_cleanup(
258 const struct stat *ds,
263 bool keep_this_level) {
266 struct timespec times[2];
267 bool deleted = false;
270 while ((dent = readdir(d))) {
273 _cleanup_free_ char *sub_path = NULL;
275 if (streq(dent->d_name, ".") ||
276 streq(dent->d_name, ".."))
279 if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
283 /* FUSE, NFS mounts, SELinux might return EACCES */
285 log_debug("stat(%s/%s) failed: %m", p, dent->d_name);
287 log_error("stat(%s/%s) failed: %m", p, dent->d_name);
292 /* Stay on the same filesystem */
293 if (s.st_dev != rootdev)
296 /* Try to detect bind mounts of the same filesystem instance; they
297 * do not differ in device major/minors. This type of query is not
298 * supported on all kernels or filesystem types though. */
299 if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0)
302 /* Do not delete read-only files owned by root */
303 if (s.st_uid == 0 && !(s.st_mode & S_IWUSR))
306 if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
311 /* Is there an item configured for this path? */
312 if (hashmap_get(items, sub_path))
315 if (find_glob(globs, sub_path))
318 if (S_ISDIR(s.st_mode)) {
321 streq(dent->d_name, "lost+found") &&
326 log_warning("Reached max depth on %s.", sub_path);
328 _cleanup_closedir_ DIR *sub_dir;
331 sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
332 if (sub_dir == NULL) {
333 if (errno != ENOENT) {
334 log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
341 q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
347 /* Note: if you are wondering why we don't
348 * support the sticky bit for excluding
349 * directories from cleaning like we do it for
350 * other file system objects: well, the sticky
351 * bit already has a meaning for directories,
352 * so we don't want to overload that. */
357 /* Ignore ctime, we change it when deleting */
358 age = MAX(timespec_load(&s.st_mtim),
359 timespec_load(&s.st_atim));
363 if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) {
364 log_debug("rmdir '%s'", sub_path);
366 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
367 if (errno != ENOENT && errno != ENOTEMPTY) {
368 log_error("rmdir(%s): %m", sub_path);
375 /* Skip files for which the sticky bit is
376 * set. These are semantics we define, and are
377 * unknown elsewhere. See XDG_RUNTIME_DIR
378 * specification for details. */
379 if (s.st_mode & S_ISVTX)
382 if (mountpoint && S_ISREG(s.st_mode)) {
383 if (streq(dent->d_name, ".journal") &&
387 if (streq(dent->d_name, "aquota.user") ||
388 streq(dent->d_name, "aquota.group"))
392 /* Ignore sockets that are listed in /proc/net/unix */
393 if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path))
396 /* Ignore device nodes */
397 if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode))
400 /* Keep files on this level around if this is
405 age = MAX3(timespec_load(&s.st_mtim),
406 timespec_load(&s.st_atim),
407 timespec_load(&s.st_ctim));
412 log_debug("unlink '%s'", sub_path);
414 if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
415 if (errno != ENOENT) {
416 log_error("unlink(%s): %m", sub_path);
427 /* Restore original directory timestamps */
428 times[0] = ds->st_atim;
429 times[1] = ds->st_mtim;
431 if (futimens(dirfd(d), times) < 0)
432 log_error("utimensat(%s): %m", p);
438 static int item_set_perms_full(Item *i, const char *path, bool ignore_enoent) {
439 /* not using i->path directly because it may be a glob */
441 if (chmod(path, i->mode) < 0) {
442 if (errno != ENOENT || !ignore_enoent) {
443 log_error("chmod(%s) failed: %m", path);
448 if (i->uid_set || i->gid_set)
450 i->uid_set ? i->uid : (uid_t) -1,
451 i->gid_set ? i->gid : (gid_t) -1) < 0) {
453 if (errno != ENOENT || !ignore_enoent) {
454 log_error("chown(%s) failed: %m", path);
459 return label_fix(path, ignore_enoent, false);
462 static int item_set_perms(Item *i, const char *path) {
463 return item_set_perms_full(i, path, false);
466 static int write_one_file(Item *i, const char *path) {
472 flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
473 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
476 label_context_set(path, S_IFREG);
477 fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
479 label_context_clear();
484 if (i->type == WRITE_FILE && errno == ENOENT)
487 log_error("Failed to create file %s: %m", path);
494 _cleanup_free_ char *unescaped;
496 unescaped = cunescape(i->argument);
497 if (unescaped == NULL) {
498 close_nointr_nofail(fd);
502 l = strlen(unescaped);
503 n = write(fd, unescaped, l);
505 if (n < 0 || (size_t) n < l) {
506 log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
507 close_nointr_nofail(fd);
508 return n < 0 ? n : -EIO;
512 close_nointr_nofail(fd);
514 if (stat(path, &st) < 0) {
515 log_error("stat(%s) failed: %m", path);
519 if (!S_ISREG(st.st_mode)) {
520 log_error("%s is not a file.", path);
524 r = item_set_perms(i, path);
531 static int recursive_relabel_children(Item *i, const char *path) {
532 _cleanup_closedir_ DIR *d;
535 /* This returns the first error we run into, but nevertheless
540 return errno == ENOENT ? 0 : -errno;
546 _cleanup_free_ char *entry_path = NULL;
550 if (!de && errno != 0) {
559 if (streq(de->d_name, ".") || streq(de->d_name, ".."))
562 if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) {
568 if (de->d_type == DT_UNKNOWN) {
571 if (lstat(entry_path, &st) < 0) {
572 if (ret == 0 && errno != ENOENT)
577 is_dir = S_ISDIR(st.st_mode);
580 is_dir = de->d_type == DT_DIR;
582 r = item_set_perms(i, entry_path);
584 if (ret == 0 && r != -ENOENT)
590 r = recursive_relabel_children(i, entry_path);
591 if (r < 0 && ret == 0)
599 static int recursive_relabel(Item *i, const char *path) {
603 r = item_set_perms(i, path);
607 if (lstat(path, &st) < 0)
610 if (S_ISDIR(st.st_mode))
611 r = recursive_relabel_children(i, path);
616 static int glob_item(Item *i, int (*action)(Item *, const char *)) {
618 _cleanup_globfree_ glob_t g = {};
622 k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
624 if (k != GLOB_NOMATCH) {
628 log_error("glob(%s) failed: %m", i->path);
632 STRV_FOREACH(fn, g.gl_pathv) {
641 static int create_item(Item *i) {
651 case IGNORE_DIRECTORY_PATH:
653 case RECURSIVE_REMOVE_PATH:
658 r = write_one_file(i, i->path);
664 r = glob_item(i, write_one_file);
671 r = item_set_perms_full(i, i->path, true);
677 case TRUNCATE_DIRECTORY:
678 case CREATE_DIRECTORY:
680 RUN_WITH_UMASK(0000) {
681 mkdir_parents_label(i->path, 0755);
682 r = mkdir(i->path, i->mode);
685 if (r < 0 && errno != EEXIST) {
686 log_error("Failed to create directory %s: %m", i->path);
690 if (stat(i->path, &st) < 0) {
691 log_error("stat(%s) failed: %m", i->path);
695 if (!S_ISDIR(st.st_mode)) {
696 log_error("%s is not a directory.", i->path);
700 r = item_set_perms(i, i->path);
708 RUN_WITH_UMASK(0000) {
709 r = mkfifo(i->path, i->mode);
712 if (r < 0 && errno != EEXIST) {
713 log_error("Failed to create fifo %s: %m", i->path);
717 if (stat(i->path, &st) < 0) {
718 log_error("stat(%s) failed: %m", i->path);
722 if (!S_ISFIFO(st.st_mode)) {
723 log_error("%s is not a fifo.", i->path);
727 r = item_set_perms(i, i->path);
733 case CREATE_SYMLINK: {
736 label_context_set(i->path, S_IFLNK);
737 r = symlink(i->argument, i->path);
739 label_context_clear();
742 if (r < 0 && errno != EEXIST) {
743 log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
747 r = readlink_malloc(i->path, &x);
749 log_error("readlink(%s) failed: %s", i->path, strerror(-r));
753 if (!streq(i->argument, x)) {
755 log_error("%s is not the right symlinks.", i->path);
763 case CREATE_BLOCK_DEVICE:
764 case CREATE_CHAR_DEVICE: {
767 if (have_effective_cap(CAP_MKNOD) == 0) {
768 /* In a container we lack CAP_MKNOD. We
769 shouldn't attempt to create the device node in
770 that case to avoid noise, and we don't support
771 virtualized devices in containers anyway. */
773 log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
777 file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
779 RUN_WITH_UMASK(0000) {
780 label_context_set(i->path, file_type);
781 r = mknod(i->path, i->mode | file_type, i->major_minor);
783 label_context_clear();
787 if (r < 0 && errno != EEXIST) {
788 log_error("Failed to create device node %s: %m", i->path);
792 if (stat(i->path, &st) < 0) {
793 log_error("stat(%s) failed: %m", i->path);
797 if ((st.st_mode & S_IFMT) != file_type) {
798 log_error("%s is not a device node.", i->path);
802 r = item_set_perms(i, i->path);
811 r = glob_item(i, item_set_perms);
816 case RECURSIVE_RELABEL_PATH:
818 r = glob_item(i, recursive_relabel);
823 log_debug("%s created successfully.", i->path);
828 static int remove_item_instance(Item *i, const char *instance) {
837 case CREATE_DIRECTORY:
840 case CREATE_BLOCK_DEVICE:
841 case CREATE_CHAR_DEVICE:
843 case IGNORE_DIRECTORY_PATH:
845 case RECURSIVE_RELABEL_PATH:
851 if (remove(instance) < 0 && errno != ENOENT) {
852 log_error("remove(%s): %m", instance);
858 case TRUNCATE_DIRECTORY:
859 case RECURSIVE_REMOVE_PATH:
860 /* FIXME: we probably should use dir_cleanup() here
861 * instead of rm_rf() so that 'x' is honoured. */
862 r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
863 if (r < 0 && r != -ENOENT) {
864 log_error("rm_rf(%s): %s", instance, strerror(-r));
874 static int remove_item(Item *i) {
883 case CREATE_DIRECTORY:
886 case CREATE_CHAR_DEVICE:
887 case CREATE_BLOCK_DEVICE:
889 case IGNORE_DIRECTORY_PATH:
891 case RECURSIVE_RELABEL_PATH:
897 case TRUNCATE_DIRECTORY:
898 case RECURSIVE_REMOVE_PATH:
899 r = glob_item(i, remove_item_instance);
906 static int clean_item_instance(Item *i, const char* instance) {
907 _cleanup_closedir_ DIR *d = NULL;
918 n = now(CLOCK_REALTIME);
924 d = opendir(instance);
926 if (errno == ENOENT || errno == ENOTDIR)
929 log_error("Failed to open directory %s: %m", i->path);
933 if (fstat(dirfd(d), &s) < 0) {
934 log_error("stat(%s) failed: %m", i->path);
938 if (!S_ISDIR(s.st_mode)) {
939 log_error("%s is not a directory.", i->path);
943 if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
944 log_error("stat(%s/..) failed: %m", i->path);
948 mountpoint = s.st_dev != ps.st_dev ||
949 (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
951 r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
952 MAX_DEPTH, i->keep_first_level);
956 static int clean_item(Item *i) {
962 case CREATE_DIRECTORY:
963 case TRUNCATE_DIRECTORY:
965 clean_item_instance(i, i->path);
967 case IGNORE_DIRECTORY_PATH:
968 r = glob_item(i, clean_item_instance);
977 static int process_item(Item *i) {
982 r = arg_create ? create_item(i) : 0;
983 q = arg_remove ? remove_item(i) : 0;
984 p = arg_clean ? clean_item(i) : 0;
995 static void item_free(Item *i) {
1003 DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free);
1004 #define _cleanup_item_free_ _cleanup_(item_freep)
1006 static bool item_equal(Item *a, Item *b) {
1010 if (!streq_ptr(a->path, b->path))
1013 if (a->type != b->type)
1016 if (a->uid_set != b->uid_set ||
1017 (a->uid_set && a->uid != b->uid))
1020 if (a->gid_set != b->gid_set ||
1021 (a->gid_set && a->gid != b->gid))
1024 if (a->mode_set != b->mode_set ||
1025 (a->mode_set && a->mode != b->mode))
1028 if (a->age_set != b->age_set ||
1029 (a->age_set && a->age != b->age))
1032 if ((a->type == CREATE_FILE ||
1033 a->type == TRUNCATE_FILE ||
1034 a->type == WRITE_FILE ||
1035 a->type == CREATE_SYMLINK) &&
1036 !streq_ptr(a->argument, b->argument))
1039 if ((a->type == CREATE_CHAR_DEVICE ||
1040 a->type == CREATE_BLOCK_DEVICE) &&
1041 a->major_minor != b->major_minor)
1047 static bool should_include_path(const char *path) {
1050 STRV_FOREACH(prefix, exclude_prefixes) {
1051 if (path_startswith(path, *prefix))
1055 STRV_FOREACH(prefix, include_prefixes) {
1056 if (path_startswith(path, *prefix))
1060 /* no matches, so we should include this path only if we
1061 * have no whitelist at all */
1062 return strv_length(include_prefixes) == 0;
1065 static int parse_line(const char *fname, unsigned line, const char *buffer) {
1067 static const Specifier specifier_table[] = {
1068 { 'm', specifier_machine_id, NULL },
1069 { 'b', specifier_boot_id, NULL },
1070 { 'H', specifier_host_name, NULL },
1071 { 'v', specifier_kernel_release, NULL },
1075 _cleanup_item_free_ Item *i = NULL;
1078 *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
1088 "%ms %ms %ms %ms %ms %ms %n",
1097 log_error("[%s:%u] Syntax error.", fname, line);
1101 if (strlen(action) > 2 || (strlen(action) > 1 && action[1] != '!')) {
1102 log_error("[%s:%u] Unknown modifier '%s'", fname, line, action);
1104 } else if (strlen(action) > 1 && !arg_boot)
1113 r = specifier_printf(path, specifier_table, NULL, &i->path);
1115 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
1120 n += strspn(buffer+n, WHITESPACE);
1121 if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
1122 i->argument = unquote(buffer+n, "\"");
1132 case CREATE_DIRECTORY:
1133 case TRUNCATE_DIRECTORY:
1136 case IGNORE_DIRECTORY_PATH:
1138 case RECURSIVE_REMOVE_PATH:
1140 case RECURSIVE_RELABEL_PATH:
1144 case CREATE_SYMLINK:
1146 log_error("[%s:%u] Symlink file requires argument.", fname, line);
1153 log_error("[%s:%u] Write file requires argument.", fname, line);
1158 case CREATE_CHAR_DEVICE:
1159 case CREATE_BLOCK_DEVICE: {
1160 unsigned major, minor;
1163 log_error("[%s:%u] Device file requires argument.", fname, line);
1167 if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) {
1168 log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument);
1172 i->major_minor = makedev(major, minor);
1177 log_error("[%s:%u] Unknown file type '%c'.", fname, line, type);
1183 if (!path_is_absolute(i->path)) {
1184 log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
1188 path_kill_slashes(i->path);
1190 if (!should_include_path(i->path))
1193 if (user && !streq(user, "-")) {
1194 const char *u = user;
1196 r = get_user_creds(&u, &i->uid, NULL, NULL, NULL);
1198 log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
1205 if (group && !streq(group, "-")) {
1206 const char *g = group;
1208 r = get_group_creds(&g, &i->gid);
1210 log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
1217 if (mode && !streq(mode, "-")) {
1220 if (sscanf(mode, "%o", &m) != 1) {
1221 log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
1229 i->type == CREATE_DIRECTORY ||
1230 i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
1232 if (age && !streq(age, "-")) {
1233 const char *a = age;
1236 i->keep_first_level = true;
1240 if (parse_sec(a, &i->age) < 0) {
1241 log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
1248 h = needs_glob(i->type) ? globs : items;
1250 existing = hashmap_get(h, i->path);
1253 /* Two identical items are fine */
1254 if (!item_equal(existing, i))
1255 log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
1260 r = hashmap_put(h, i->path, i);
1262 log_error("Failed to insert item %s: %s", i->path, strerror(-r));
1266 i = NULL; /* avoid cleanup */
1271 static int help(void) {
1273 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
1274 "Creates, deletes and cleans up volatile and temporary files and directories.\n\n"
1275 " -h --help Show this help\n"
1276 " --version Show package version\n"
1277 " --create Create marked files/directories\n"
1278 " --clean Clean up marked directories\n"
1279 " --remove Remove marked files/directories\n"
1280 " --boot Execute actions only safe at boot\n"
1281 " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n"
1282 " --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n",
1283 program_invocation_short_name);
1288 static int parse_argv(int argc, char *argv[]) {
1291 ARG_VERSION = 0x100,
1300 static const struct option options[] = {
1301 { "help", no_argument, NULL, 'h' },
1302 { "version", no_argument, NULL, ARG_VERSION },
1303 { "create", no_argument, NULL, ARG_CREATE },
1304 { "clean", no_argument, NULL, ARG_CLEAN },
1305 { "remove", no_argument, NULL, ARG_REMOVE },
1306 { "boot", no_argument, NULL, ARG_BOOT },
1307 { "prefix", required_argument, NULL, ARG_PREFIX },
1308 { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX },
1317 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
1325 puts(PACKAGE_STRING);
1326 puts(SYSTEMD_FEATURES);
1346 if (strv_extend(&include_prefixes, optarg) < 0)
1350 case ARG_EXCLUDE_PREFIX:
1351 if (strv_extend(&exclude_prefixes, optarg) < 0)
1359 assert_not_reached("Unhandled option");
1363 if (!arg_clean && !arg_create && !arg_remove) {
1364 log_error("You need to specify at least one of --clean, --create or --remove.");
1371 static int read_config_file(const char *fn, bool ignore_enoent) {
1372 _cleanup_fclose_ FILE *f = NULL;
1373 char line[LINE_MAX];
1381 r = search_and_fopen_nulstr(fn, "re", conf_file_dirs, &f);
1383 if (ignore_enoent && r == -ENOENT)
1386 log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r));
1390 FOREACH_LINE(line, f, break) {
1397 if (*l == '#' || *l == 0)
1400 k = parse_line(fn, v, l);
1401 if (k < 0 && r == 0)
1405 /* we have to determine age parameter for each entry of type X */
1406 HASHMAP_FOREACH(i, globs, iterator) {
1408 Item *j, *candidate_item = NULL;
1410 if (i->type != IGNORE_DIRECTORY_PATH)
1413 HASHMAP_FOREACH(j, items, iter) {
1414 if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
1417 if (path_equal(j->path, i->path)) {
1422 if ((!candidate_item && path_startswith(i->path, j->path)) ||
1423 (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
1427 if (candidate_item) {
1428 i->age = candidate_item->age;
1434 log_error("Failed to read from file %s: %m", fn);
1442 int main(int argc, char *argv[]) {
1447 r = parse_argv(argc, argv);
1449 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1451 log_set_target(LOG_TARGET_AUTO);
1452 log_parse_environment();
1459 items = hashmap_new(string_hash_func, string_compare_func);
1460 globs = hashmap_new(string_hash_func, string_compare_func);
1462 if (!items || !globs) {
1469 if (optind < argc) {
1472 for (j = optind; j < argc; j++) {
1473 k = read_config_file(argv[j], false);
1474 if (k < 0 && r == 0)
1479 _cleanup_strv_free_ char **files = NULL;
1482 r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs);
1484 log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
1488 STRV_FOREACH(f, files) {
1489 k = read_config_file(*f, true);
1490 if (k < 0 && r == 0)
1495 HASHMAP_FOREACH(i, globs, iterator)
1498 HASHMAP_FOREACH(i, items, iterator)
1502 while ((i = hashmap_steal_first(items)))
1505 while ((i = hashmap_steal_first(globs)))
1508 hashmap_free(items);
1509 hashmap_free(globs);
1511 strv_free(include_prefixes);
1513 set_free_free(unix_sockets);
1517 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;