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Diffstat (limited to 'src/tmpfiles/tmpfiles.c')
-rw-r--r--src/tmpfiles/tmpfiles.c151
1 files changed, 106 insertions, 45 deletions
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 8f29256c6d..bb81ff5e3a 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -20,43 +20,59 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <unistd.h>
-#include <fcntl.h>
+#include <dirent.h>
#include <errno.h>
-#include <string.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <getopt.h>
+#include <glob.h>
#include <limits.h>
-#include <dirent.h>
+#include <linux/fs.h>
+#include <stdbool.h>
+#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
-#include <stddef.h>
-#include <getopt.h>
-#include <stdbool.h>
-#include <time.h>
-#include <glob.h>
-#include <fnmatch.h>
+#include <string.h>
#include <sys/stat.h>
#include <sys/xattr.h>
-#include <linux/fs.h>
+#include <time.h>
+#include <unistd.h>
+#include "acl-util.h"
+#include "alloc-util.h"
+#include "btrfs-util.h"
+#include "capability-util.h"
+#include "chattr-util.h"
+#include "conf-files.h"
+#include "copy.h"
+#include "def.h"
+#include "escape.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "formats-util.h"
+#include "fs-util.h"
+#include "glob-util.h"
+#include "io-util.h"
+#include "label.h"
#include "log.h"
-#include "util.h"
#include "macro.h"
#include "missing.h"
#include "mkdir.h"
+#include "mount-util.h"
+#include "parse-util.h"
#include "path-util.h"
-#include "strv.h"
-#include "label.h"
-#include "set.h"
-#include "conf-files.h"
-#include "capability.h"
-#include "specifier.h"
-#include "build.h"
-#include "copy.h"
#include "rm-rf.h"
#include "selinux-util.h"
-#include "btrfs-util.h"
-#include "acl-util.h"
-#include "formats-util.h"
+#include "set.h"
+#include "specifier.h"
+#include "stat-util.h"
+#include "stdio-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "strv.h"
+#include "umask-util.h"
+#include "user-util.h"
+#include "util.h"
/* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
* them in the file system. This is intended to be used to create
@@ -70,6 +86,8 @@ typedef enum ItemType {
CREATE_DIRECTORY = 'd',
TRUNCATE_DIRECTORY = 'D',
CREATE_SUBVOLUME = 'v',
+ CREATE_SUBVOLUME_INHERIT_QUOTA = 'q',
+ CREATE_SUBVOLUME_NEW_QUOTA = 'Q',
CREATE_FIFO = 'p',
CREATE_SYMLINK = 'L',
CREATE_CHAR_DEVICE = 'c',
@@ -141,7 +159,7 @@ static char **arg_include_prefixes = NULL;
static char **arg_exclude_prefixes = NULL;
static char *arg_root = NULL;
-static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles");
+static const char conf_file_dirs[] = CONF_PATHS_NULSTR("tmpfiles.d");
#define MAX_DEPTH 256
@@ -181,6 +199,8 @@ static bool takes_ownership(ItemType t) {
CREATE_DIRECTORY,
TRUNCATE_DIRECTORY,
CREATE_SUBVOLUME,
+ CREATE_SUBVOLUME_INHERIT_QUOTA,
+ CREATE_SUBVOLUME_NEW_QUOTA,
CREATE_FIFO,
CREATE_SYMLINK,
CREATE_CHAR_DEVICE,
@@ -1055,7 +1075,7 @@ static int item_do_children(Item *i, const char *path, action_t action) {
errno = 0;
de = readdir(d);
if (!de) {
- if (errno != 0 && r == 0)
+ if (errno > 0 && r == 0)
r = -errno;
break;
@@ -1199,16 +1219,36 @@ static int create_item(Item *i) {
case CREATE_DIRECTORY:
case TRUNCATE_DIRECTORY:
case CREATE_SUBVOLUME:
+ case CREATE_SUBVOLUME_INHERIT_QUOTA:
+ case CREATE_SUBVOLUME_NEW_QUOTA:
RUN_WITH_UMASK(0000)
mkdir_parents_label(i->path, 0755);
- if (i->type == CREATE_SUBVOLUME)
- RUN_WITH_UMASK((~i->mode) & 0777) {
- r = btrfs_subvol_make(i->path);
- log_debug_errno(r, "Creating subvolume \"%s\": %m", i->path);
+ if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) {
+
+ if (btrfs_is_subvol(isempty(arg_root) ? "/" : arg_root) <= 0)
+
+ /* Don't create a subvolume unless the
+ * root directory is one, too. We do
+ * this under the assumption that if
+ * the root directory is just a plain
+ * directory (i.e. very light-weight),
+ * we shouldn't try to split it up
+ * into subvolumes (i.e. more
+ * heavy-weight). Thus, chroot()
+ * environments and suchlike will get
+ * a full brtfs subvolume set up below
+ * their tree only if they
+ * specifically set up a btrfs
+ * subvolume for the root dir too. */
+
+ r = -ENOTTY;
+ else {
+ RUN_WITH_UMASK((~i->mode) & 0777)
+ r = btrfs_subvol_make(i->path);
}
- else
+ } else
r = 0;
if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY)
@@ -1237,6 +1277,28 @@ static int create_item(Item *i) {
log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path);
+ if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) {
+ r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA);
+ if (r == -ENOTTY) {
+ log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of unsupported file system or because directory is not a subvolume: %m", i->path);
+ return 0;
+ }
+ if (r == -EROFS) {
+ log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of read-only file system: %m", i->path);
+ return 0;
+ }
+ if (r == -ENOPROTOOPT) {
+ log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because quota support is disabled: %m", i->path);
+ return 0;
+ }
+ if (r < 0)
+ return log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path);
+ if (r > 0)
+ log_debug("Adjusted quota for subvolume \"%s\".", i->path);
+ if (r == 0)
+ log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path);
+ }
+
r = path_set_perms(i, i->path);
if (r < 0)
return r;
@@ -1493,6 +1555,8 @@ static int remove_item(Item *i) {
case TRUNCATE_FILE:
case CREATE_DIRECTORY:
case CREATE_SUBVOLUME:
+ case CREATE_SUBVOLUME_INHERIT_QUOTA:
+ case CREATE_SUBVOLUME_NEW_QUOTA:
case CREATE_FIFO:
case CREATE_SYMLINK:
case CREATE_CHAR_DEVICE:
@@ -1562,8 +1626,7 @@ static int clean_item_instance(Item *i, const char* instance) {
if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0)
return log_error_errno(errno, "stat(%s/..) failed: %m", i->path);
- mountpoint = s.st_dev != ps.st_dev ||
- (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
+ mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino;
log_debug("Cleanup threshold for %s \"%s\" is %s",
mountpoint ? "mount point" : "directory",
@@ -1584,6 +1647,8 @@ static int clean_item(Item *i) {
switch (i->type) {
case CREATE_DIRECTORY:
case CREATE_SUBVOLUME:
+ case CREATE_SUBVOLUME_INHERIT_QUOTA:
+ case CREATE_SUBVOLUME_NEW_QUOTA:
case TRUNCATE_DIRECTORY:
case IGNORE_PATH:
case COPY_FILES:
@@ -1820,6 +1885,8 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
case CREATE_DIRECTORY:
case CREATE_SUBVOLUME:
+ case CREATE_SUBVOLUME_INHERIT_QUOTA:
+ case CREATE_SUBVOLUME_NEW_QUOTA:
case TRUNCATE_DIRECTORY:
case CREATE_FIFO:
case IGNORE_PATH:
@@ -1984,8 +2051,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
i.mode = m;
i.mode_set = true;
} else
- i.mode = IN_SET(i.type, CREATE_DIRECTORY, CREATE_SUBVOLUME, TRUNCATE_DIRECTORY)
- ? 0755 : 0644;
+ i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644;
if (!isempty(age) && !streq(age, "-")) {
const char *a = age;
@@ -2076,7 +2142,7 @@ static int parse_argv(int argc, char *argv[]) {
{}
};
- int c;
+ int c, r;
assert(argc >= 0);
assert(argv);
@@ -2090,9 +2156,7 @@ static int parse_argv(int argc, char *argv[]) {
return 0;
case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
+ return version();
case ARG_CREATE:
arg_create = true;
@@ -2121,12 +2185,9 @@ static int parse_argv(int argc, char *argv[]) {
break;
case ARG_ROOT:
- free(arg_root);
- arg_root = path_make_absolute_cwd(optarg);
- if (!arg_root)
- return log_oom();
-
- path_kill_slashes(arg_root);
+ r = parse_path_argument_and_warn(optarg, true, &arg_root);
+ if (r < 0)
+ return r;
break;
case '?':
@@ -2189,7 +2250,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
continue;
ORDERED_HASHMAP_FOREACH(j, items, iter) {
- if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY && j->type != CREATE_SUBVOLUME)
+ if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA))
continue;
if (path_equal(j->path, i->path)) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-04-05 15:21:09 +0000