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;
114 static char *arg_root = NULL;
116 static const char conf_file_dirs[] =
119 "/usr/local/lib/tmpfiles.d\0"
120 "/usr/lib/tmpfiles.d\0"
121 #ifdef HAVE_SPLIT_USR
126 #define MAX_DEPTH 256
128 static bool needs_glob(ItemType t) {
129 return t == IGNORE_PATH || t == IGNORE_DIRECTORY_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_PATH;
132 static struct Item* find_glob(Hashmap *h, const char *match) {
136 HASHMAP_FOREACH(j, h, i)
137 if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
143 static void load_unix_sockets(void) {
144 _cleanup_fclose_ FILE *f = NULL;
150 /* We maintain a cache of the sockets we found in
151 * /proc/net/unix to speed things up a little. */
153 unix_sockets = set_new(string_hash_func, string_compare_func);
157 f = fopen("/proc/net/unix", "re");
162 if (!fgets(line, sizeof(line), f))
169 if (!fgets(line, sizeof(line), f))
174 p = strchr(line, ':');
182 p += strspn(p, WHITESPACE);
183 p += strcspn(p, WHITESPACE); /* skip one more word */
184 p += strspn(p, WHITESPACE);
193 path_kill_slashes(s);
195 k = set_consume(unix_sockets, s);
196 if (k < 0 && k != -EEXIST)
203 set_free_free(unix_sockets);
207 static bool unix_socket_alive(const char *fn) {
213 return !!set_get(unix_sockets, (char*) fn);
215 /* We don't know, so assume yes */
219 static int dir_is_mount_point(DIR *d, const char *subdir) {
220 union file_handle_union h = { .handle.handle_bytes = MAX_HANDLE_SZ };
221 int mount_id_parent, mount_id;
224 r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0);
228 h.handle.handle_bytes = MAX_HANDLE_SZ;
229 r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0);
233 /* got no handle; make no assumptions, return error */
234 if (r_p < 0 && r < 0)
237 /* got both handles; if they differ, it is a mount point */
238 if (r_p >= 0 && r >= 0)
239 return mount_id_parent != mount_id;
241 /* got only one handle; assume different mount points if one
242 * of both queries was not supported by the filesystem */
243 if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP)
252 static int dir_cleanup(
256 const struct stat *ds,
261 bool keep_this_level) {
264 struct timespec times[2];
265 bool deleted = false;
268 while ((dent = readdir(d))) {
271 _cleanup_free_ char *sub_path = NULL;
273 if (streq(dent->d_name, ".") ||
274 streq(dent->d_name, ".."))
277 if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
281 /* FUSE, NFS mounts, SELinux might return EACCES */
283 log_debug("stat(%s/%s) failed: %m", p, dent->d_name);
285 log_error("stat(%s/%s) failed: %m", p, dent->d_name);
290 /* Stay on the same filesystem */
291 if (s.st_dev != rootdev)
294 /* Try to detect bind mounts of the same filesystem instance; they
295 * do not differ in device major/minors. This type of query is not
296 * supported on all kernels or filesystem types though. */
297 if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0)
300 /* Do not delete read-only files owned by root */
301 if (s.st_uid == 0 && !(s.st_mode & S_IWUSR))
304 if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
309 /* Is there an item configured for this path? */
310 if (hashmap_get(items, sub_path))
313 if (find_glob(globs, sub_path))
316 if (S_ISDIR(s.st_mode)) {
319 streq(dent->d_name, "lost+found") &&
324 log_warning("Reached max depth on %s.", sub_path);
326 _cleanup_closedir_ DIR *sub_dir;
329 sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
330 if (sub_dir == NULL) {
331 if (errno != ENOENT) {
332 log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
339 q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
345 /* Note: if you are wondering why we don't
346 * support the sticky bit for excluding
347 * directories from cleaning like we do it for
348 * other file system objects: well, the sticky
349 * bit already has a meaning for directories,
350 * so we don't want to overload that. */
355 /* Ignore ctime, we change it when deleting */
356 age = MAX(timespec_load(&s.st_mtim),
357 timespec_load(&s.st_atim));
361 if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) {
362 log_debug("rmdir '%s'", sub_path);
364 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
365 if (errno != ENOENT && errno != ENOTEMPTY) {
366 log_error("rmdir(%s): %m", sub_path);
373 /* Skip files for which the sticky bit is
374 * set. These are semantics we define, and are
375 * unknown elsewhere. See XDG_RUNTIME_DIR
376 * specification for details. */
377 if (s.st_mode & S_ISVTX)
380 if (mountpoint && S_ISREG(s.st_mode)) {
381 if (streq(dent->d_name, ".journal") &&
385 if (streq(dent->d_name, "aquota.user") ||
386 streq(dent->d_name, "aquota.group"))
390 /* Ignore sockets that are listed in /proc/net/unix */
391 if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path))
394 /* Ignore device nodes */
395 if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode))
398 /* Keep files on this level around if this is
403 age = MAX3(timespec_load(&s.st_mtim),
404 timespec_load(&s.st_atim),
405 timespec_load(&s.st_ctim));
410 log_debug("unlink '%s'", sub_path);
412 if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
413 if (errno != ENOENT) {
414 log_error("unlink(%s): %m", sub_path);
425 /* Restore original directory timestamps */
426 times[0] = ds->st_atim;
427 times[1] = ds->st_mtim;
429 if (futimens(dirfd(d), times) < 0)
430 log_error("utimensat(%s): %m", p);
436 static int item_set_perms_full(Item *i, const char *path, bool ignore_enoent) {
437 /* not using i->path directly because it may be a glob */
439 if (chmod(path, i->mode) < 0) {
440 if (errno != ENOENT || !ignore_enoent) {
441 log_error("chmod(%s) failed: %m", path);
446 if (i->uid_set || i->gid_set)
448 i->uid_set ? i->uid : (uid_t) -1,
449 i->gid_set ? i->gid : (gid_t) -1) < 0) {
451 if (errno != ENOENT || !ignore_enoent) {
452 log_error("chown(%s) failed: %m", path);
457 return label_fix(path, ignore_enoent, false);
460 static int item_set_perms(Item *i, const char *path) {
461 return item_set_perms_full(i, path, false);
464 static int write_one_file(Item *i, const char *path) {
470 flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
471 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
474 label_context_set(path, S_IFREG);
475 fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
477 label_context_clear();
482 if (i->type == WRITE_FILE && errno == ENOENT)
485 log_error("Failed to create file %s: %m", path);
492 _cleanup_free_ char *unescaped;
494 unescaped = cunescape(i->argument);
495 if (unescaped == NULL) {
500 l = strlen(unescaped);
501 n = write(fd, unescaped, l);
503 if (n < 0 || (size_t) n < l) {
504 log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
506 return n < 0 ? n : -EIO;
512 if (stat(path, &st) < 0) {
513 log_error("stat(%s) failed: %m", path);
517 if (!S_ISREG(st.st_mode)) {
518 log_error("%s is not a file.", path);
522 r = item_set_perms(i, path);
529 static int recursive_relabel_children(Item *i, const char *path) {
530 _cleanup_closedir_ DIR *d;
533 /* This returns the first error we run into, but nevertheless
538 return errno == ENOENT ? 0 : -errno;
544 _cleanup_free_ char *entry_path = NULL;
548 if (!de && errno != 0) {
557 if (streq(de->d_name, ".") || streq(de->d_name, ".."))
560 if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) {
566 if (de->d_type == DT_UNKNOWN) {
567 r = is_dir(entry_path);
569 if (ret == 0 && errno != ENOENT)
577 dir = de->d_type == DT_DIR;
579 r = item_set_perms(i, entry_path);
581 if (ret == 0 && r != -ENOENT)
587 r = recursive_relabel_children(i, entry_path);
588 if (r < 0 && ret == 0)
596 static int recursive_relabel(Item *i, const char *path) {
600 r = item_set_perms(i, path);
604 if (lstat(path, &st) < 0)
607 if (S_ISDIR(st.st_mode))
608 r = recursive_relabel_children(i, path);
613 static int glob_item(Item *i, int (*action)(Item *, const char *)) {
615 _cleanup_globfree_ glob_t g = {};
619 k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
621 if (k != GLOB_NOMATCH) {
625 log_error("glob(%s) failed: %m", i->path);
629 STRV_FOREACH(fn, g.gl_pathv) {
638 static int create_item(Item *i) {
648 case IGNORE_DIRECTORY_PATH:
650 case RECURSIVE_REMOVE_PATH:
655 r = write_one_file(i, i->path);
661 r = glob_item(i, write_one_file);
668 r = item_set_perms_full(i, i->path, true);
674 case TRUNCATE_DIRECTORY:
675 case CREATE_DIRECTORY:
677 RUN_WITH_UMASK(0000) {
678 mkdir_parents_label(i->path, 0755);
679 r = mkdir(i->path, i->mode);
682 if (r < 0 && errno != EEXIST) {
683 log_error("Failed to create directory %s: %m", i->path);
687 if (stat(i->path, &st) < 0) {
688 log_error("stat(%s) failed: %m", i->path);
692 if (!S_ISDIR(st.st_mode)) {
693 log_error("%s is not a directory.", i->path);
697 r = item_set_perms(i, i->path);
705 RUN_WITH_UMASK(0000) {
706 r = mkfifo(i->path, i->mode);
709 if (r < 0 && errno != EEXIST) {
710 log_error("Failed to create fifo %s: %m", i->path);
714 if (stat(i->path, &st) < 0) {
715 log_error("stat(%s) failed: %m", i->path);
719 if (!S_ISFIFO(st.st_mode)) {
720 log_error("%s is not a fifo.", i->path);
724 r = item_set_perms(i, i->path);
730 case CREATE_SYMLINK: {
731 _cleanup_free_ char *x = NULL;
733 label_context_set(i->path, S_IFLNK);
734 r = symlink(i->argument, i->path);
736 label_context_clear();
739 if (r < 0 && errno != EEXIST) {
740 log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
744 r = readlink_malloc(i->path, &x);
746 log_error("readlink(%s) failed: %s", i->path, strerror(-r));
750 if (!streq(i->argument, x)) {
751 log_error("%s is not the right symlinks.", i->path);
758 case CREATE_BLOCK_DEVICE:
759 case CREATE_CHAR_DEVICE: {
762 if (have_effective_cap(CAP_MKNOD) == 0) {
763 /* In a container we lack CAP_MKNOD. We
764 shouldn't attempt to create the device node in
765 that case to avoid noise, and we don't support
766 virtualized devices in containers anyway. */
768 log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
772 file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
774 RUN_WITH_UMASK(0000) {
775 label_context_set(i->path, file_type);
776 r = mknod(i->path, i->mode | file_type, i->major_minor);
778 label_context_clear();
782 if (r < 0 && errno != EEXIST) {
783 log_error("Failed to create device node %s: %m", i->path);
787 if (stat(i->path, &st) < 0) {
788 log_error("stat(%s) failed: %m", i->path);
792 if ((st.st_mode & S_IFMT) != file_type) {
793 log_error("%s is not a device node.", i->path);
797 r = item_set_perms(i, i->path);
806 r = glob_item(i, item_set_perms);
811 case RECURSIVE_RELABEL_PATH:
813 r = glob_item(i, recursive_relabel);
818 log_debug("%s created successfully.", i->path);
823 static int remove_item_instance(Item *i, const char *instance) {
832 case CREATE_DIRECTORY:
835 case CREATE_BLOCK_DEVICE:
836 case CREATE_CHAR_DEVICE:
838 case IGNORE_DIRECTORY_PATH:
840 case RECURSIVE_RELABEL_PATH:
846 if (remove(instance) < 0 && errno != ENOENT) {
847 log_error("remove(%s): %m", instance);
853 case TRUNCATE_DIRECTORY:
854 case RECURSIVE_REMOVE_PATH:
855 /* FIXME: we probably should use dir_cleanup() here
856 * instead of rm_rf() so that 'x' is honoured. */
857 r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
858 if (r < 0 && r != -ENOENT) {
859 log_error("rm_rf(%s): %s", instance, strerror(-r));
869 static int remove_item(Item *i) {
878 case CREATE_DIRECTORY:
881 case CREATE_CHAR_DEVICE:
882 case CREATE_BLOCK_DEVICE:
884 case IGNORE_DIRECTORY_PATH:
886 case RECURSIVE_RELABEL_PATH:
892 case TRUNCATE_DIRECTORY:
893 case RECURSIVE_REMOVE_PATH:
894 r = glob_item(i, remove_item_instance);
901 static int clean_item_instance(Item *i, const char* instance) {
902 _cleanup_closedir_ DIR *d = NULL;
913 n = now(CLOCK_REALTIME);
919 d = opendir(instance);
921 if (errno == ENOENT || errno == ENOTDIR)
924 log_error("Failed to open directory %s: %m", i->path);
928 if (fstat(dirfd(d), &s) < 0) {
929 log_error("stat(%s) failed: %m", i->path);
933 if (!S_ISDIR(s.st_mode)) {
934 log_error("%s is not a directory.", i->path);
938 if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
939 log_error("stat(%s/..) failed: %m", i->path);
943 mountpoint = s.st_dev != ps.st_dev ||
944 (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
946 r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
947 MAX_DEPTH, i->keep_first_level);
951 static int clean_item(Item *i) {
957 case CREATE_DIRECTORY:
958 case TRUNCATE_DIRECTORY:
960 clean_item_instance(i, i->path);
962 case IGNORE_DIRECTORY_PATH:
963 r = glob_item(i, clean_item_instance);
972 static int process_item(Item *i) {
977 r = arg_create ? create_item(i) : 0;
978 q = arg_remove ? remove_item(i) : 0;
979 p = arg_clean ? clean_item(i) : 0;
990 static void item_free(Item *i) {
998 DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free);
999 #define _cleanup_item_free_ _cleanup_(item_freep)
1001 static bool item_equal(Item *a, Item *b) {
1005 if (!streq_ptr(a->path, b->path))
1008 if (a->type != b->type)
1011 if (a->uid_set != b->uid_set ||
1012 (a->uid_set && a->uid != b->uid))
1015 if (a->gid_set != b->gid_set ||
1016 (a->gid_set && a->gid != b->gid))
1019 if (a->mode_set != b->mode_set ||
1020 (a->mode_set && a->mode != b->mode))
1023 if (a->age_set != b->age_set ||
1024 (a->age_set && a->age != b->age))
1027 if ((a->type == CREATE_FILE ||
1028 a->type == TRUNCATE_FILE ||
1029 a->type == WRITE_FILE ||
1030 a->type == CREATE_SYMLINK) &&
1031 !streq_ptr(a->argument, b->argument))
1034 if ((a->type == CREATE_CHAR_DEVICE ||
1035 a->type == CREATE_BLOCK_DEVICE) &&
1036 a->major_minor != b->major_minor)
1042 static bool should_include_path(const char *path) {
1045 STRV_FOREACH(prefix, exclude_prefixes) {
1046 if (path_startswith(path, *prefix))
1050 STRV_FOREACH(prefix, include_prefixes) {
1051 if (path_startswith(path, *prefix))
1055 /* no matches, so we should include this path only if we
1056 * have no whitelist at all */
1057 return strv_length(include_prefixes) == 0;
1060 static int parse_line(const char *fname, unsigned line, const char *buffer) {
1062 static const Specifier specifier_table[] = {
1063 { 'm', specifier_machine_id, NULL },
1064 { 'b', specifier_boot_id, NULL },
1065 { 'H', specifier_host_name, NULL },
1066 { 'v', specifier_kernel_release, NULL },
1070 _cleanup_item_free_ Item *i = NULL;
1073 *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
1083 "%ms %ms %ms %ms %ms %ms %n",
1092 log_error("[%s:%u] Syntax error.", fname, line);
1096 if (strlen(action) > 2 || (strlen(action) > 1 && action[1] != '!')) {
1097 log_error("[%s:%u] Unknown modifier '%s'", fname, line, action);
1099 } else if (strlen(action) > 1 && !arg_boot)
1108 r = specifier_printf(path, specifier_table, NULL, &i->path);
1110 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
1115 n += strspn(buffer+n, WHITESPACE);
1116 if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
1117 i->argument = unquote(buffer+n, "\"");
1127 case CREATE_DIRECTORY:
1128 case TRUNCATE_DIRECTORY:
1131 case IGNORE_DIRECTORY_PATH:
1133 case RECURSIVE_REMOVE_PATH:
1135 case RECURSIVE_RELABEL_PATH:
1139 case CREATE_SYMLINK:
1141 log_error("[%s:%u] Symlink file requires argument.", fname, line);
1148 log_error("[%s:%u] Write file requires argument.", fname, line);
1153 case CREATE_CHAR_DEVICE:
1154 case CREATE_BLOCK_DEVICE: {
1155 unsigned major, minor;
1158 log_error("[%s:%u] Device file requires argument.", fname, line);
1162 if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) {
1163 log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument);
1167 i->major_minor = makedev(major, minor);
1172 log_error("[%s:%u] Unknown file type '%c'.", fname, line, type);
1178 if (!path_is_absolute(i->path)) {
1179 log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
1183 path_kill_slashes(i->path);
1185 if (!should_include_path(i->path))
1189 char *p = strappend(arg_root, i->path);
1197 if (user && !streq(user, "-")) {
1198 const char *u = user;
1200 r = get_user_creds(&u, &i->uid, NULL, NULL, NULL);
1202 log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
1209 if (group && !streq(group, "-")) {
1210 const char *g = group;
1212 r = get_group_creds(&g, &i->gid);
1214 log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
1221 if (mode && !streq(mode, "-")) {
1224 if (sscanf(mode, "%o", &m) != 1) {
1225 log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
1233 i->type == CREATE_DIRECTORY ||
1234 i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
1236 if (age && !streq(age, "-")) {
1237 const char *a = age;
1240 i->keep_first_level = true;
1244 if (parse_sec(a, &i->age) < 0) {
1245 log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
1252 h = needs_glob(i->type) ? globs : items;
1254 existing = hashmap_get(h, i->path);
1257 /* Two identical items are fine */
1258 if (!item_equal(existing, i))
1259 log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
1264 r = hashmap_put(h, i->path, i);
1266 log_error("Failed to insert item %s: %s", i->path, strerror(-r));
1270 i = NULL; /* avoid cleanup */
1275 static int help(void) {
1277 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
1278 "Creates, deletes and cleans up volatile and temporary files and directories.\n\n"
1279 " -h --help Show this help\n"
1280 " --version Show package version\n"
1281 " --create Create marked files/directories\n"
1282 " --clean Clean up marked directories\n"
1283 " --remove Remove marked files/directories\n"
1284 " --boot Execute actions only safe at boot\n"
1285 " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n"
1286 " --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n"
1287 " --root=PATH Operate on an alternate filesystem root\n",
1288 program_invocation_short_name);
1293 static int parse_argv(int argc, char *argv[]) {
1296 ARG_VERSION = 0x100,
1306 static const struct option options[] = {
1307 { "help", no_argument, NULL, 'h' },
1308 { "version", no_argument, NULL, ARG_VERSION },
1309 { "create", no_argument, NULL, ARG_CREATE },
1310 { "clean", no_argument, NULL, ARG_CLEAN },
1311 { "remove", no_argument, NULL, ARG_REMOVE },
1312 { "boot", no_argument, NULL, ARG_BOOT },
1313 { "prefix", required_argument, NULL, ARG_PREFIX },
1314 { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX },
1315 { "root", required_argument, NULL, ARG_ROOT },
1324 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
1332 puts(PACKAGE_STRING);
1333 puts(SYSTEMD_FEATURES);
1353 if (strv_push(&include_prefixes, optarg) < 0)
1357 case ARG_EXCLUDE_PREFIX:
1358 if (strv_push(&exclude_prefixes, optarg) < 0)
1363 arg_root = path_make_absolute_cwd(optarg);
1366 path_kill_slashes(arg_root);
1373 assert_not_reached("Unhandled option");
1377 if (!arg_clean && !arg_create && !arg_remove) {
1378 log_error("You need to specify at least one of --clean, --create or --remove.");
1385 static int read_config_file(const char *fn, bool ignore_enoent) {
1386 _cleanup_fclose_ FILE *f = NULL;
1387 char line[LINE_MAX];
1395 r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f);
1397 if (ignore_enoent && r == -ENOENT)
1400 log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r));
1404 FOREACH_LINE(line, f, break) {
1411 if (*l == '#' || *l == 0)
1414 k = parse_line(fn, v, l);
1415 if (k < 0 && r == 0)
1419 /* we have to determine age parameter for each entry of type X */
1420 HASHMAP_FOREACH(i, globs, iterator) {
1422 Item *j, *candidate_item = NULL;
1424 if (i->type != IGNORE_DIRECTORY_PATH)
1427 HASHMAP_FOREACH(j, items, iter) {
1428 if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
1431 if (path_equal(j->path, i->path)) {
1436 if ((!candidate_item && path_startswith(i->path, j->path)) ||
1437 (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
1441 if (candidate_item) {
1442 i->age = candidate_item->age;
1448 log_error("Failed to read from file %s: %m", fn);
1456 int main(int argc, char *argv[]) {
1461 r = parse_argv(argc, argv);
1463 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1465 log_set_target(LOG_TARGET_AUTO);
1466 log_parse_environment();
1473 items = hashmap_new(string_hash_func, string_compare_func);
1474 globs = hashmap_new(string_hash_func, string_compare_func);
1476 if (!items || !globs) {
1483 if (optind < argc) {
1486 for (j = optind; j < argc; j++) {
1487 k = read_config_file(argv[j], false);
1488 if (k < 0 && r == 0)
1493 _cleanup_strv_free_ char **files = NULL;
1496 r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs);
1498 log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
1502 STRV_FOREACH(f, files) {
1503 k = read_config_file(*f, true);
1504 if (k < 0 && r == 0)
1509 HASHMAP_FOREACH(i, globs, iterator)
1512 HASHMAP_FOREACH(i, items, iterator)
1516 while ((i = hashmap_steal_first(items)))
1519 while ((i = hashmap_steal_first(globs)))
1522 hashmap_free(items);
1523 hashmap_free(globs);
1525 free(include_prefixes);
1526 free(exclude_prefixes);
1529 set_free_free(unix_sockets);
1533 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;