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 struct file_handle *h;
221 int mount_id_parent, mount_id;
224 h = alloca(MAX_HANDLE_SZ);
226 h->handle_bytes = MAX_HANDLE_SZ;
227 r_p = name_to_handle_at(dirfd(d), ".", h, &mount_id_parent, 0);
231 h->handle_bytes = MAX_HANDLE_SZ;
232 r = name_to_handle_at(dirfd(d), subdir, h, &mount_id, 0);
236 /* got no handle; make no assumptions, return error */
237 if (r_p < 0 && r < 0)
240 /* got both handles; if they differ, it is a mount point */
241 if (r_p >= 0 && r >= 0)
242 return mount_id_parent != mount_id;
244 /* got only one handle; assume different mount points if one
245 * of both queries was not supported by the filesystem */
246 if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP)
255 static int dir_cleanup(
259 const struct stat *ds,
264 bool keep_this_level) {
267 struct timespec times[2];
268 bool deleted = false;
271 while ((dent = readdir(d))) {
274 _cleanup_free_ char *sub_path = NULL;
276 if (streq(dent->d_name, ".") ||
277 streq(dent->d_name, ".."))
280 if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
284 /* FUSE, NFS mounts, SELinux might return EACCES */
286 log_debug("stat(%s/%s) failed: %m", p, dent->d_name);
288 log_error("stat(%s/%s) failed: %m", p, dent->d_name);
293 /* Stay on the same filesystem */
294 if (s.st_dev != rootdev)
297 /* Try to detect bind mounts of the same filesystem instance; they
298 * do not differ in device major/minors. This type of query is not
299 * supported on all kernels or filesystem types though. */
300 if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0)
303 /* Do not delete read-only files owned by root */
304 if (s.st_uid == 0 && !(s.st_mode & S_IWUSR))
307 if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
312 /* Is there an item configured for this path? */
313 if (hashmap_get(items, sub_path))
316 if (find_glob(globs, sub_path))
319 if (S_ISDIR(s.st_mode)) {
322 streq(dent->d_name, "lost+found") &&
327 log_warning("Reached max depth on %s.", sub_path);
329 _cleanup_closedir_ DIR *sub_dir;
332 sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
333 if (sub_dir == NULL) {
334 if (errno != ENOENT) {
335 log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
342 q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
348 /* Note: if you are wondering why we don't
349 * support the sticky bit for excluding
350 * directories from cleaning like we do it for
351 * other file system objects: well, the sticky
352 * bit already has a meaning for directories,
353 * so we don't want to overload that. */
358 /* Ignore ctime, we change it when deleting */
359 age = MAX(timespec_load(&s.st_mtim),
360 timespec_load(&s.st_atim));
364 if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) {
365 log_debug("rmdir '%s'", sub_path);
367 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
368 if (errno != ENOENT && errno != ENOTEMPTY) {
369 log_error("rmdir(%s): %m", sub_path);
376 /* Skip files for which the sticky bit is
377 * set. These are semantics we define, and are
378 * unknown elsewhere. See XDG_RUNTIME_DIR
379 * specification for details. */
380 if (s.st_mode & S_ISVTX)
383 if (mountpoint && S_ISREG(s.st_mode)) {
384 if (streq(dent->d_name, ".journal") &&
388 if (streq(dent->d_name, "aquota.user") ||
389 streq(dent->d_name, "aquota.group"))
393 /* Ignore sockets that are listed in /proc/net/unix */
394 if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path))
397 /* Ignore device nodes */
398 if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode))
401 /* Keep files on this level around if this is
406 age = MAX3(timespec_load(&s.st_mtim),
407 timespec_load(&s.st_atim),
408 timespec_load(&s.st_ctim));
413 log_debug("unlink '%s'", sub_path);
415 if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
416 if (errno != ENOENT) {
417 log_error("unlink(%s): %m", sub_path);
428 /* Restore original directory timestamps */
429 times[0] = ds->st_atim;
430 times[1] = ds->st_mtim;
432 if (futimens(dirfd(d), times) < 0)
433 log_error("utimensat(%s): %m", p);
439 static int item_set_perms_full(Item *i, const char *path, bool ignore_enoent) {
440 /* not using i->path directly because it may be a glob */
442 if (chmod(path, i->mode) < 0) {
443 if (errno != ENOENT || !ignore_enoent) {
444 log_error("chmod(%s) failed: %m", path);
449 if (i->uid_set || i->gid_set)
451 i->uid_set ? i->uid : (uid_t) -1,
452 i->gid_set ? i->gid : (gid_t) -1) < 0) {
454 if (errno != ENOENT || !ignore_enoent) {
455 log_error("chown(%s) failed: %m", path);
460 return label_fix(path, ignore_enoent, false);
463 static int item_set_perms(Item *i, const char *path) {
464 return item_set_perms_full(i, path, false);
467 static int write_one_file(Item *i, const char *path) {
473 flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
474 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
477 label_context_set(path, S_IFREG);
478 fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
480 label_context_clear();
485 if (i->type == WRITE_FILE && errno == ENOENT)
488 log_error("Failed to create file %s: %m", path);
495 _cleanup_free_ char *unescaped;
497 unescaped = cunescape(i->argument);
498 if (unescaped == NULL) {
499 close_nointr_nofail(fd);
503 l = strlen(unescaped);
504 n = write(fd, unescaped, l);
506 if (n < 0 || (size_t) n < l) {
507 log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
508 close_nointr_nofail(fd);
509 return n < 0 ? n : -EIO;
513 close_nointr_nofail(fd);
515 if (stat(path, &st) < 0) {
516 log_error("stat(%s) failed: %m", path);
520 if (!S_ISREG(st.st_mode)) {
521 log_error("%s is not a file.", path);
525 r = item_set_perms(i, path);
532 static int recursive_relabel_children(Item *i, const char *path) {
533 _cleanup_closedir_ DIR *d;
536 /* This returns the first error we run into, but nevertheless
541 return errno == ENOENT ? 0 : -errno;
547 _cleanup_free_ char *entry_path = NULL;
551 if (!de && errno != 0) {
560 if (streq(de->d_name, ".") || streq(de->d_name, ".."))
563 if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) {
569 if (de->d_type == DT_UNKNOWN) {
572 if (lstat(entry_path, &st) < 0) {
573 if (ret == 0 && errno != ENOENT)
578 is_dir = S_ISDIR(st.st_mode);
581 is_dir = de->d_type == DT_DIR;
583 r = item_set_perms(i, entry_path);
585 if (ret == 0 && r != -ENOENT)
591 r = recursive_relabel_children(i, entry_path);
592 if (r < 0 && ret == 0)
600 static int recursive_relabel(Item *i, const char *path) {
604 r = item_set_perms(i, path);
608 if (lstat(path, &st) < 0)
611 if (S_ISDIR(st.st_mode))
612 r = recursive_relabel_children(i, path);
617 static int glob_item(Item *i, int (*action)(Item *, const char *)) {
619 _cleanup_globfree_ glob_t g = {};
623 k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
625 if (k != GLOB_NOMATCH) {
629 log_error("glob(%s) failed: %m", i->path);
633 STRV_FOREACH(fn, g.gl_pathv) {
642 static int create_item(Item *i) {
652 case IGNORE_DIRECTORY_PATH:
654 case RECURSIVE_REMOVE_PATH:
659 r = write_one_file(i, i->path);
665 r = glob_item(i, write_one_file);
672 r = item_set_perms_full(i, i->path, true);
678 case TRUNCATE_DIRECTORY:
679 case CREATE_DIRECTORY:
681 RUN_WITH_UMASK(0000) {
682 mkdir_parents_label(i->path, 0755);
683 r = mkdir(i->path, i->mode);
686 if (r < 0 && errno != EEXIST) {
687 log_error("Failed to create directory %s: %m", i->path);
691 if (stat(i->path, &st) < 0) {
692 log_error("stat(%s) failed: %m", i->path);
696 if (!S_ISDIR(st.st_mode)) {
697 log_error("%s is not a directory.", i->path);
701 r = item_set_perms(i, i->path);
709 RUN_WITH_UMASK(0000) {
710 r = mkfifo(i->path, i->mode);
713 if (r < 0 && errno != EEXIST) {
714 log_error("Failed to create fifo %s: %m", i->path);
718 if (stat(i->path, &st) < 0) {
719 log_error("stat(%s) failed: %m", i->path);
723 if (!S_ISFIFO(st.st_mode)) {
724 log_error("%s is not a fifo.", i->path);
728 r = item_set_perms(i, i->path);
734 case CREATE_SYMLINK: {
735 _cleanup_free_ char *x = NULL;
737 label_context_set(i->path, S_IFLNK);
738 r = symlink(i->argument, i->path);
740 label_context_clear();
743 if (r < 0 && errno != EEXIST) {
744 log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
748 r = readlink_malloc(i->path, &x);
750 log_error("readlink(%s) failed: %s", i->path, strerror(-r));
754 if (!streq(i->argument, x)) {
755 log_error("%s is not the right symlinks.", i->path);
762 case CREATE_BLOCK_DEVICE:
763 case CREATE_CHAR_DEVICE: {
766 if (have_effective_cap(CAP_MKNOD) == 0) {
767 /* In a container we lack CAP_MKNOD. We
768 shouldn't attempt to create the device node in
769 that case to avoid noise, and we don't support
770 virtualized devices in containers anyway. */
772 log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
776 file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
778 RUN_WITH_UMASK(0000) {
779 label_context_set(i->path, file_type);
780 r = mknod(i->path, i->mode | file_type, i->major_minor);
782 label_context_clear();
786 if (r < 0 && errno != EEXIST) {
787 log_error("Failed to create device node %s: %m", i->path);
791 if (stat(i->path, &st) < 0) {
792 log_error("stat(%s) failed: %m", i->path);
796 if ((st.st_mode & S_IFMT) != file_type) {
797 log_error("%s is not a device node.", i->path);
801 r = item_set_perms(i, i->path);
810 r = glob_item(i, item_set_perms);
815 case RECURSIVE_RELABEL_PATH:
817 r = glob_item(i, recursive_relabel);
822 log_debug("%s created successfully.", i->path);
827 static int remove_item_instance(Item *i, const char *instance) {
836 case CREATE_DIRECTORY:
839 case CREATE_BLOCK_DEVICE:
840 case CREATE_CHAR_DEVICE:
842 case IGNORE_DIRECTORY_PATH:
844 case RECURSIVE_RELABEL_PATH:
850 if (remove(instance) < 0 && errno != ENOENT) {
851 log_error("remove(%s): %m", instance);
857 case TRUNCATE_DIRECTORY:
858 case RECURSIVE_REMOVE_PATH:
859 /* FIXME: we probably should use dir_cleanup() here
860 * instead of rm_rf() so that 'x' is honoured. */
861 r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
862 if (r < 0 && r != -ENOENT) {
863 log_error("rm_rf(%s): %s", instance, strerror(-r));
873 static int remove_item(Item *i) {
882 case CREATE_DIRECTORY:
885 case CREATE_CHAR_DEVICE:
886 case CREATE_BLOCK_DEVICE:
888 case IGNORE_DIRECTORY_PATH:
890 case RECURSIVE_RELABEL_PATH:
896 case TRUNCATE_DIRECTORY:
897 case RECURSIVE_REMOVE_PATH:
898 r = glob_item(i, remove_item_instance);
905 static int clean_item_instance(Item *i, const char* instance) {
906 _cleanup_closedir_ DIR *d = NULL;
917 n = now(CLOCK_REALTIME);
923 d = opendir(instance);
925 if (errno == ENOENT || errno == ENOTDIR)
928 log_error("Failed to open directory %s: %m", i->path);
932 if (fstat(dirfd(d), &s) < 0) {
933 log_error("stat(%s) failed: %m", i->path);
937 if (!S_ISDIR(s.st_mode)) {
938 log_error("%s is not a directory.", i->path);
942 if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
943 log_error("stat(%s/..) failed: %m", i->path);
947 mountpoint = s.st_dev != ps.st_dev ||
948 (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
950 r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
951 MAX_DEPTH, i->keep_first_level);
955 static int clean_item(Item *i) {
961 case CREATE_DIRECTORY:
962 case TRUNCATE_DIRECTORY:
964 clean_item_instance(i, i->path);
966 case IGNORE_DIRECTORY_PATH:
967 r = glob_item(i, clean_item_instance);
976 static int process_item(Item *i) {
981 r = arg_create ? create_item(i) : 0;
982 q = arg_remove ? remove_item(i) : 0;
983 p = arg_clean ? clean_item(i) : 0;
994 static void item_free(Item *i) {
1002 DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free);
1003 #define _cleanup_item_free_ _cleanup_(item_freep)
1005 static bool item_equal(Item *a, Item *b) {
1009 if (!streq_ptr(a->path, b->path))
1012 if (a->type != b->type)
1015 if (a->uid_set != b->uid_set ||
1016 (a->uid_set && a->uid != b->uid))
1019 if (a->gid_set != b->gid_set ||
1020 (a->gid_set && a->gid != b->gid))
1023 if (a->mode_set != b->mode_set ||
1024 (a->mode_set && a->mode != b->mode))
1027 if (a->age_set != b->age_set ||
1028 (a->age_set && a->age != b->age))
1031 if ((a->type == CREATE_FILE ||
1032 a->type == TRUNCATE_FILE ||
1033 a->type == WRITE_FILE ||
1034 a->type == CREATE_SYMLINK) &&
1035 !streq_ptr(a->argument, b->argument))
1038 if ((a->type == CREATE_CHAR_DEVICE ||
1039 a->type == CREATE_BLOCK_DEVICE) &&
1040 a->major_minor != b->major_minor)
1046 static bool should_include_path(const char *path) {
1049 STRV_FOREACH(prefix, exclude_prefixes) {
1050 if (path_startswith(path, *prefix))
1054 STRV_FOREACH(prefix, include_prefixes) {
1055 if (path_startswith(path, *prefix))
1059 /* no matches, so we should include this path only if we
1060 * have no whitelist at all */
1061 return strv_length(include_prefixes) == 0;
1064 static int parse_line(const char *fname, unsigned line, const char *buffer) {
1066 static const Specifier specifier_table[] = {
1067 { 'm', specifier_machine_id, NULL },
1068 { 'b', specifier_boot_id, NULL },
1069 { 'H', specifier_host_name, NULL },
1070 { 'v', specifier_kernel_release, NULL },
1074 _cleanup_item_free_ Item *i = NULL;
1077 *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
1087 "%ms %ms %ms %ms %ms %ms %n",
1096 log_error("[%s:%u] Syntax error.", fname, line);
1100 if (strlen(action) > 2 || (strlen(action) > 1 && action[1] != '!')) {
1101 log_error("[%s:%u] Unknown modifier '%s'", fname, line, action);
1103 } else if (strlen(action) > 1 && !arg_boot)
1112 r = specifier_printf(path, specifier_table, NULL, &i->path);
1114 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
1119 n += strspn(buffer+n, WHITESPACE);
1120 if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
1121 i->argument = unquote(buffer+n, "\"");
1131 case CREATE_DIRECTORY:
1132 case TRUNCATE_DIRECTORY:
1135 case IGNORE_DIRECTORY_PATH:
1137 case RECURSIVE_REMOVE_PATH:
1139 case RECURSIVE_RELABEL_PATH:
1143 case CREATE_SYMLINK:
1145 log_error("[%s:%u] Symlink file requires argument.", fname, line);
1152 log_error("[%s:%u] Write file requires argument.", fname, line);
1157 case CREATE_CHAR_DEVICE:
1158 case CREATE_BLOCK_DEVICE: {
1159 unsigned major, minor;
1162 log_error("[%s:%u] Device file requires argument.", fname, line);
1166 if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) {
1167 log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument);
1171 i->major_minor = makedev(major, minor);
1176 log_error("[%s:%u] Unknown file type '%c'.", fname, line, type);
1182 if (!path_is_absolute(i->path)) {
1183 log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
1187 path_kill_slashes(i->path);
1189 if (!should_include_path(i->path))
1193 char *p = strappend(arg_root, i->path);
1201 if (user && !streq(user, "-")) {
1202 const char *u = user;
1204 r = get_user_creds(&u, &i->uid, NULL, NULL, NULL);
1206 log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
1213 if (group && !streq(group, "-")) {
1214 const char *g = group;
1216 r = get_group_creds(&g, &i->gid);
1218 log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
1225 if (mode && !streq(mode, "-")) {
1228 if (sscanf(mode, "%o", &m) != 1) {
1229 log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
1237 i->type == CREATE_DIRECTORY ||
1238 i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
1240 if (age && !streq(age, "-")) {
1241 const char *a = age;
1244 i->keep_first_level = true;
1248 if (parse_sec(a, &i->age) < 0) {
1249 log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
1256 h = needs_glob(i->type) ? globs : items;
1258 existing = hashmap_get(h, i->path);
1261 /* Two identical items are fine */
1262 if (!item_equal(existing, i))
1263 log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
1268 r = hashmap_put(h, i->path, i);
1270 log_error("Failed to insert item %s: %s", i->path, strerror(-r));
1274 i = NULL; /* avoid cleanup */
1279 static int help(void) {
1281 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
1282 "Creates, deletes and cleans up volatile and temporary files and directories.\n\n"
1283 " -h --help Show this help\n"
1284 " --version Show package version\n"
1285 " --create Create marked files/directories\n"
1286 " --clean Clean up marked directories\n"
1287 " --remove Remove marked files/directories\n"
1288 " --boot Execute actions only safe at boot\n"
1289 " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n"
1290 " --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n"
1291 " --root=PATH Operate on an alternate filesystem root\n",
1292 program_invocation_short_name);
1297 static int parse_argv(int argc, char *argv[]) {
1300 ARG_VERSION = 0x100,
1310 static const struct option options[] = {
1311 { "help", no_argument, NULL, 'h' },
1312 { "version", no_argument, NULL, ARG_VERSION },
1313 { "create", no_argument, NULL, ARG_CREATE },
1314 { "clean", no_argument, NULL, ARG_CLEAN },
1315 { "remove", no_argument, NULL, ARG_REMOVE },
1316 { "boot", no_argument, NULL, ARG_BOOT },
1317 { "prefix", required_argument, NULL, ARG_PREFIX },
1318 { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX },
1319 { "root", required_argument, NULL, ARG_ROOT },
1328 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
1336 puts(PACKAGE_STRING);
1337 puts(SYSTEMD_FEATURES);
1357 if (strv_push(&include_prefixes, optarg) < 0)
1361 case ARG_EXCLUDE_PREFIX:
1362 if (strv_push(&exclude_prefixes, optarg) < 0)
1367 arg_root = path_make_absolute_cwd(optarg);
1370 path_kill_slashes(arg_root);
1377 assert_not_reached("Unhandled option");
1381 if (!arg_clean && !arg_create && !arg_remove) {
1382 log_error("You need to specify at least one of --clean, --create or --remove.");
1389 static int read_config_file(const char *fn, bool ignore_enoent) {
1390 _cleanup_fclose_ FILE *f = NULL;
1391 char line[LINE_MAX];
1399 r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f);
1401 if (ignore_enoent && r == -ENOENT)
1404 log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r));
1408 FOREACH_LINE(line, f, break) {
1415 if (*l == '#' || *l == 0)
1418 k = parse_line(fn, v, l);
1419 if (k < 0 && r == 0)
1423 /* we have to determine age parameter for each entry of type X */
1424 HASHMAP_FOREACH(i, globs, iterator) {
1426 Item *j, *candidate_item = NULL;
1428 if (i->type != IGNORE_DIRECTORY_PATH)
1431 HASHMAP_FOREACH(j, items, iter) {
1432 if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
1435 if (path_equal(j->path, i->path)) {
1440 if ((!candidate_item && path_startswith(i->path, j->path)) ||
1441 (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
1445 if (candidate_item) {
1446 i->age = candidate_item->age;
1452 log_error("Failed to read from file %s: %m", fn);
1460 int main(int argc, char *argv[]) {
1465 r = parse_argv(argc, argv);
1467 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1469 log_set_target(LOG_TARGET_AUTO);
1470 log_parse_environment();
1477 items = hashmap_new(string_hash_func, string_compare_func);
1478 globs = hashmap_new(string_hash_func, string_compare_func);
1480 if (!items || !globs) {
1487 if (optind < argc) {
1490 for (j = optind; j < argc; j++) {
1491 k = read_config_file(argv[j], false);
1492 if (k < 0 && r == 0)
1497 _cleanup_strv_free_ char **files = NULL;
1500 r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs);
1502 log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
1506 STRV_FOREACH(f, files) {
1507 k = read_config_file(*f, true);
1508 if (k < 0 && r == 0)
1513 HASHMAP_FOREACH(i, globs, iterator)
1516 HASHMAP_FOREACH(i, items, iterator)
1520 while ((i = hashmap_steal_first(items)))
1523 while ((i = hashmap_steal_first(globs)))
1526 hashmap_free(items);
1527 hashmap_free(globs);
1529 free(include_prefixes);
1530 free(exclude_prefixes);
1533 set_free_free(unix_sockets);
1537 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;