chiark / gitweb /
Add initialization helper for file_handle_union
[elogind.git] / src / tmpfiles / tmpfiles.c
index 79fd0b7..332ddce 100644 (file)
@@ -38,7 +38,7 @@
 #include <sys/param.h>
 #include <glob.h>
 #include <fnmatch.h>
-#include <sys/capability.h>
+#include <sys/xattr.h>
 
 #include "log.h"
 #include "util.h"
@@ -54,6 +54,8 @@
 #include "specifier.h"
 #include "build.h"
 #include "copy.h"
+#include "selinux-util.h"
+#include "btrfs-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
@@ -66,11 +68,13 @@ typedef enum ItemType {
         TRUNCATE_FILE = 'F',
         CREATE_DIRECTORY = 'd',
         TRUNCATE_DIRECTORY = 'D',
+        CREATE_SUBVOLUME = 'v',
         CREATE_FIFO = 'p',
         CREATE_SYMLINK = 'L',
         CREATE_CHAR_DEVICE = 'c',
         CREATE_BLOCK_DEVICE = 'b',
         COPY_FILES = 'C',
+        SET_XATTR = 't',
 
         /* These ones take globs */
         WRITE_FILE = 'w',
@@ -88,6 +92,7 @@ typedef struct Item {
 
         char *path;
         char *argument;
+        char **xattrs;
         uid_t uid;
         gid_t gid;
         mode_t mode;
@@ -117,15 +122,7 @@ static char **arg_include_prefixes = NULL;
 static char **arg_exclude_prefixes = NULL;
 static char *arg_root = NULL;
 
-static const char conf_file_dirs[] =
-        "/etc/tmpfiles.d\0"
-        "/run/tmpfiles.d\0"
-        "/usr/local/lib/tmpfiles.d\0"
-        "/usr/lib/tmpfiles.d\0"
-#ifdef HAVE_SPLIT_USR
-        "/lib/tmpfiles.d\0"
-#endif
-        ;
+static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles");
 
 #define MAX_DEPTH 256
 
@@ -165,7 +162,7 @@ static void load_unix_sockets(void) {
         /* We maintain a cache of the sockets we found in
          * /proc/net/unix to speed things up a little. */
 
-        unix_sockets = set_new(string_hash_func, string_compare_func);
+        unix_sockets = set_new(&string_hash_ops);
         if (!unix_sockets)
                 return;
 
@@ -233,10 +230,7 @@ static bool unix_socket_alive(const char *fn) {
 
 static int dir_is_mount_point(DIR *d, const char *subdir) {
 
-        union file_handle_union h = {
-                .handle.handle_bytes = MAX_HANDLE_SZ
-        };
-
+        union file_handle_union h = FILE_HANDLE_INIT;
         int mount_id_parent, mount_id;
         int r_p, r;
 
@@ -259,7 +253,7 @@ static int dir_is_mount_point(DIR *d, const char *subdir) {
 
         /* got only one handle; assume different mount points if one
          * of both queries was not supported by the filesystem */
-        if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP)
+        if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP)
                 return true;
 
         /* return error */
@@ -299,9 +293,9 @@ static int dir_cleanup(
 
                         /* FUSE, NFS mounts, SELinux might return EACCES */
                         if (errno == EACCES)
-                                log_debug("stat(%s/%s) failed: %m", p, dent->d_name);
+                                log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name);
                         else
-                                log_error("stat(%s/%s) failed: %m", p, dent->d_name);
+                                log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name);
                         r = -errno;
                         continue;
                 }
@@ -349,7 +343,7 @@ static int dir_cleanup(
                                 sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
                                 if (!sub_dir) {
                                         if (errno != ENOENT) {
-                                                log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
+                                                log_error_errno(errno, "opendir(%s/%s) failed: %m", p, dent->d_name);
                                                 r = -errno;
                                         }
 
@@ -382,7 +376,7 @@ static int dir_cleanup(
 
                                 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
                                         if (errno != ENOENT && errno != ENOTEMPTY) {
-                                                log_error("rmdir(%s): %m", sub_path);
+                                                log_error_errno(errno, "rmdir(%s): %m", sub_path);
                                                 r = -errno;
                                         }
                                 }
@@ -430,7 +424,7 @@ static int dir_cleanup(
 
                         if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
                                 if (errno != ENOENT) {
-                                        log_error("unlink(%s): %m", sub_path);
+                                        log_error_errno(errno, "unlink(%s): %m", sub_path);
                                         r = -errno;
                                 }
                         }
@@ -446,53 +440,116 @@ finish:
                 times[1] = ds->st_mtim;
 
                 if (futimens(dirfd(d), times) < 0)
-                        log_error("utimensat(%s): %m", p);
+                        log_error_errno(errno, "utimensat(%s): %m", p);
         }
 
         return r;
 }
 
 static int item_set_perms(Item *i, const char *path) {
+        struct stat st;
+        bool st_valid;
+
         assert(i);
         assert(path);
 
+        st_valid = stat(path, &st) == 0;
+
         /* not using i->path directly because it may be a glob */
         if (i->mode_set) {
                 mode_t m = i->mode;
 
-                if (i->mask_perms) {
-                        struct stat st;
-
-                        if (stat(path, &st) >= 0) {
-                                if (!(st.st_mode & 0111))
-                                        m &= ~0111;
-                                if (!(st.st_mode & 0222))
-                                        m &= ~0222;
-                                if (!(st.st_mode & 0444))
-                                        m &= ~0444;
-                                if (!S_ISDIR(st.st_mode))
-                                        m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */
-                        }
+                if (i->mask_perms && st_valid) {
+                        if (!(st.st_mode & 0111))
+                                m &= ~0111;
+                        if (!(st.st_mode & 0222))
+                                m &= ~0222;
+                        if (!(st.st_mode & 0444))
+                                m &= ~0444;
+                        if (!S_ISDIR(st.st_mode))
+                                m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */
                 }
 
-                if (chmod(path, m) < 0) {
-                        log_error("chmod(%s) failed: %m", path);
-                        return -errno;
+                if (!st_valid || m != (st.st_mode & 07777)) {
+                        if (chmod(path, m) < 0)
+                                return log_error_errno(errno, "chmod(%s) failed: %m", path);
                 }
         }
 
-        if (i->uid_set || i->gid_set)
+        if ((!st_valid || (i->uid != st.st_uid || i->gid != st.st_gid)) &&
+            (i->uid_set || i->gid_set))
                 if (chown(path,
-                          i->uid_set ? i->uid : (uid_t) -1,
-                          i->gid_set ? i->gid : (gid_t) -1) < 0) {
+                          i->uid_set ? i->uid : UID_INVALID,
+                          i->gid_set ? i->gid : GID_INVALID) < 0) {
 
-                        log_error("chown(%s) failed: %m", path);
+                        log_error_errno(errno, "chown(%s) failed: %m", path);
                         return -errno;
                 }
 
         return label_fix(path, false, false);
 }
 
+static int get_xattrs_from_arg(Item *i) {
+        char *xattr;
+        const char *p;
+        int r;
+
+        assert(i);
+
+        if (!i->argument) {
+                log_error("%s: Argument can't be empty!", i->path);
+                return -EBADMSG;
+        }
+        p = i->argument;
+
+        while ((r = unquote_first_word(&p, &xattr, false)) > 0) {
+                _cleanup_free_ char *tmp = NULL, *name = NULL, *value = NULL;
+                r = split_pair(xattr, "=", &name, &value);
+                if (r < 0) {
+                        log_warning("Illegal xattr found: \"%s\" - ignoring.", xattr);
+                        free(xattr);
+                        continue;
+                }
+                free(xattr);
+                if (streq(name, "") || streq(value, "")) {
+                        log_warning("Malformed xattr found: \"%s=%s\" - ignoring.", name, value);
+                        continue;
+                }
+                tmp = unquote(value, "\"");
+                if (!tmp)
+                        return log_oom();
+                free(value);
+                value = cunescape(tmp);
+                if (!value)
+                        return log_oom();
+                if (strv_consume_pair(&i->xattrs, name, value) < 0)
+                        return log_oom();
+                name = value = NULL;
+        }
+
+        return r;
+}
+
+static int item_set_xattrs(Item *i, const char *path) {
+        char **name, **value;
+
+        assert(i);
+        assert(path);
+
+        if (strv_isempty(i->xattrs))
+                return 0;
+
+        STRV_FOREACH_PAIR(name, value, i->xattrs) {
+                int n;
+                n = strlen(*value);
+                if (lsetxattr(path, *name, *value, n, 0) < 0) {
+                        log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path);
+                        return -errno;
+                }
+        }
+        return 0;
+}
+
 static int write_one_file(Item *i, const char *path) {
         _cleanup_close_ int fd = -1;
         int flags, r = 0;
@@ -505,16 +562,16 @@ static int write_one_file(Item *i, const char *path) {
                 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0;
 
         RUN_WITH_UMASK(0000) {
-                label_context_set(path, S_IFREG);
+                mac_selinux_create_file_prepare(path, S_IFREG);
                 fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode);
-                label_context_clear();
+                mac_selinux_create_file_clear();
         }
 
         if (fd < 0) {
                 if (i->type == WRITE_FILE && errno == ENOENT)
                         return 0;
 
-                log_error("Failed to create file %s: %m", path);
+                log_error_errno(errno, "Failed to create file %s: %m", path);
                 return -errno;
         }
 
@@ -538,10 +595,8 @@ static int write_one_file(Item *i, const char *path) {
 
         fd = safe_close(fd);
 
-        if (stat(path, &st) < 0) {
-                log_error("stat(%s) failed: %m", path);
-                return -errno;
-        }
+        if (stat(path, &st) < 0)
+                return log_error_errno(errno, "stat(%s) failed: %m", path);
 
         if (!S_ISREG(st.st_mode)) {
                 log_error("%s is not a file.", path);
@@ -552,6 +607,10 @@ static int write_one_file(Item *i, const char *path) {
         if (r < 0)
                 return r;
 
+        r = item_set_xattrs(i, i->path);
+        if (r < 0)
+                return r;
+
         return 0;
 }
 
@@ -632,7 +691,7 @@ static int glob_item(Item *i, int (*action)(Item *, const char *)) {
                 if (errno == 0)
                         errno = EIO;
 
-                log_error("glob(%s) failed: %m", i->path);
+                log_error_errno(errno, "glob(%s) failed: %m", i->path);
                 return -errno;
         }
 
@@ -671,20 +730,14 @@ static int create_item(Item *i) {
                 if (r < 0) {
                         struct stat a, b;
 
-                        if (r != -EEXIST) {
-                                log_error("Failed to copy files to %s: %s", i->path, strerror(-r));
-                                return -r;
-                        }
+                        if (r != -EEXIST)
+                                return log_error_errno(r, "Failed to copy files to %s: %m", i->path);
 
-                        if (stat(i->argument, &a) < 0) {
-                                log_error("stat(%s) failed: %m", i->argument);
-                                return -errno;
-                        }
+                        if (stat(i->argument, &a) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->argument);
 
-                        if (stat(i->path, &b) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &b) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if ((a.st_mode ^ b.st_mode) & S_IFMT) {
                                 log_debug("Can't copy to %s, file exists already and is of different type", i->path);
@@ -705,24 +758,30 @@ static int create_item(Item *i) {
 
                 break;
 
-        case TRUNCATE_DIRECTORY:
         case CREATE_DIRECTORY:
+        case TRUNCATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
 
-                RUN_WITH_UMASK(0000) {
+                RUN_WITH_UMASK(0000)
                         mkdir_parents_label(i->path, 0755);
-                        r = mkdir_label(i->path, i->mode);
+
+                if (i->type == CREATE_SUBVOLUME) {
+                        RUN_WITH_UMASK((~i->mode) & 0777)
+                                r = btrfs_subvol_make(i->path);
+                } else
+                        r = 0;
+
+                if (i->type == CREATE_DIRECTORY || i->type == TRUNCATE_DIRECTORY || r == -ENOTTY) {
+                        RUN_WITH_UMASK(0000)
+                                r = mkdir_label(i->path, i->mode);
                 }
 
                 if (r < 0) {
-                        if (r != -EEXIST) {
-                                log_error("Failed to create directory %s: %s", i->path, strerror(-r));
-                                return r;
-                        }
+                        if (r != -EEXIST)
+                                return log_error_errno(r, "Failed to create directory or subvolume %s: %m", i->path);
 
-                        if (stat(i->path, &st) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &st) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if (!S_ISDIR(st.st_mode)) {
                                 log_debug("%s already exists and is not a directory.", i->path);
@@ -734,41 +793,39 @@ static int create_item(Item *i) {
                 if (r < 0)
                         return r;
 
+                r = item_set_xattrs(i, i->path);
+                if (r < 0)
+                        return r;
+
                 break;
 
         case CREATE_FIFO:
 
                 RUN_WITH_UMASK(0000) {
-                        label_context_set(i->path, S_IFIFO);
+                        mac_selinux_create_file_prepare(i->path, S_IFIFO);
                         r = mkfifo(i->path, i->mode);
-                        label_context_clear();
+                        mac_selinux_create_file_clear();
                 }
 
                 if (r < 0) {
-                        if (errno != EEXIST) {
-                                log_error("Failed to create fifo %s: %m", i->path);
-                                return -errno;
-                        }
+                        if (errno != EEXIST)
+                                return log_error_errno(errno, "Failed to create fifo %s: %m", i->path);
 
-                        if (stat(i->path, &st) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &st) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if (!S_ISFIFO(st.st_mode)) {
 
                                 if (i->force) {
 
                                         RUN_WITH_UMASK(0000) {
-                                                label_context_set(i->path, S_IFIFO);
+                                                mac_selinux_create_file_prepare(i->path, S_IFIFO);
                                                 r = mkfifo_atomic(i->path, i->mode);
-                                                label_context_clear();
+                                                mac_selinux_create_file_clear();
                                         }
 
-                                        if (r < 0) {
-                                                log_error("Failed to create fifo %s: %s", i->path, strerror(-r));
-                                                return r;
-                                        }
+                                        if (r < 0)
+                                                return log_error_errno(r, "Failed to create fifo %s: %m", i->path);
                                 } else {
                                         log_debug("%s is not a fifo.", i->path);
                                         return 0;
@@ -780,34 +837,34 @@ static int create_item(Item *i) {
                 if (r < 0)
                         return r;
 
+                r = item_set_xattrs(i, i->path);
+                if (r < 0)
+                        return r;
+
                 break;
 
         case CREATE_SYMLINK:
 
-                label_context_set(i->path, S_IFLNK);
+                mac_selinux_create_file_prepare(i->path, S_IFLNK);
                 r = symlink(i->argument, i->path);
-                label_context_clear();
+                mac_selinux_create_file_clear();
 
                 if (r < 0) {
                         _cleanup_free_ char *x = NULL;
 
-                        if (errno != EEXIST) {
-                                log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
-                                return -errno;
-                        }
+                        if (errno != EEXIST)
+                                return log_error_errno(errno, "symlink(%s, %s) failed: %m", i->argument, i->path);
 
                         r = readlink_malloc(i->path, &x);
                         if (r < 0 || !streq(i->argument, x)) {
 
                                 if (i->force) {
-                                        label_context_set(i->path, S_IFLNK);
+                                        mac_selinux_create_file_prepare(i->path, S_IFLNK);
                                         r = symlink_atomic(i->argument, i->path);
-                                        label_context_clear();
+                                        mac_selinux_create_file_clear();
 
-                                        if (r < 0) {
-                                                log_error("symlink(%s, %s) failed: %s", i->argument, i->path, strerror(-r));
-                                                return r;
-                                        }
+                                        if (r < 0)
+                                                return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path);
                                 } else {
                                         log_debug("%s is not a symlink or does not point to the correct path.", i->path);
                                         return 0;
@@ -815,6 +872,10 @@ static int create_item(Item *i) {
                         }
                 }
 
+                r = item_set_xattrs(i, i->path);
+                if (r < 0)
+                       return r;
+
                 break;
 
         case CREATE_BLOCK_DEVICE:
@@ -834,9 +895,9 @@ static int create_item(Item *i) {
                 file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR;
 
                 RUN_WITH_UMASK(0000) {
-                        label_context_set(i->path, file_type);
+                        mac_selinux_create_file_prepare(i->path, file_type);
                         r = mknod(i->path, i->mode | file_type, i->major_minor);
-                        label_context_clear();
+                        mac_selinux_create_file_clear();
                 }
 
                 if (r < 0) {
@@ -846,30 +907,24 @@ static int create_item(Item *i) {
                                 return 0;
                         }
 
-                        if (errno != EEXIST) {
-                                log_error("Failed to create device node %s: %m", i->path);
-                                return -errno;
-                        }
+                        if (errno != EEXIST)
+                                return log_error_errno(errno, "Failed to create device node %s: %m", i->path);
 
-                        if (stat(i->path, &st) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &st) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if ((st.st_mode & S_IFMT) != file_type) {
 
                                 if (i->force) {
 
                                         RUN_WITH_UMASK(0000) {
-                                                label_context_set(i->path, file_type);
+                                                mac_selinux_create_file_prepare(i->path, file_type);
                                                 r = mknod_atomic(i->path, i->mode | file_type, i->major_minor);
-                                                label_context_clear();
+                                                mac_selinux_create_file_clear();
                                         }
 
-                                        if (r < 0) {
-                                                log_error("Failed to create device node %s: %s", i->path, strerror(-r));
-                                                return r;
-                                        }
+                                        if (r < 0)
+                                                return log_error_errno(r, "Failed to create device node %s: %m", i->path);
                                 } else {
                                         log_debug("%s is not a device node.", i->path);
                                         return 0;
@@ -881,6 +936,10 @@ static int create_item(Item *i) {
                 if (r < 0)
                         return r;
 
+                r = item_set_xattrs(i, i->path);
+                if (r < 0)
+                        return r;
+
                 break;
         }
 
@@ -897,7 +956,12 @@ static int create_item(Item *i) {
                 r = glob_item(i, item_set_perms_recursive);
                 if (r < 0)
                         return r;
+                break;
 
+        case SET_XATTR:
+                r = item_set_xattrs(i, i->path);
+                if (r < 0)
+                        return r;
                 break;
         }
 
@@ -916,6 +980,7 @@ static int remove_item_instance(Item *i, const char *instance) {
         case CREATE_FILE:
         case TRUNCATE_FILE:
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case CREATE_FIFO:
         case CREATE_SYMLINK:
         case CREATE_BLOCK_DEVICE:
@@ -927,13 +992,12 @@ static int remove_item_instance(Item *i, const char *instance) {
         case RECURSIVE_RELABEL_PATH:
         case WRITE_FILE:
         case COPY_FILES:
+        case SET_XATTR:
                 break;
 
         case REMOVE_PATH:
-                if (remove(instance) < 0 && errno != ENOENT) {
-                        log_error("remove(%s): %m", instance);
-                        return -errno;
-                }
+                if (remove(instance) < 0 && errno != ENOENT)
+                        return log_error_errno(errno, "remove(%s): %m", instance);
 
                 break;
 
@@ -942,10 +1006,8 @@ static int remove_item_instance(Item *i, const char *instance) {
                 /* FIXME: we probably should use dir_cleanup() here
                  * instead of rm_rf() so that 'x' is honoured. */
                 r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
-                if (r < 0 && r != -ENOENT) {
-                        log_error("rm_rf(%s): %s", instance, strerror(-r));
-                        return r;
-                }
+                if (r < 0 && r != -ENOENT)
+                        return log_error_errno(r, "rm_rf(%s): %m", instance);
 
                 break;
         }
@@ -963,6 +1025,7 @@ static int remove_item(Item *i) {
         case CREATE_FILE:
         case TRUNCATE_FILE:
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case CREATE_FIFO:
         case CREATE_SYMLINK:
         case CREATE_CHAR_DEVICE:
@@ -974,6 +1037,7 @@ static int remove_item(Item *i) {
         case RECURSIVE_RELABEL_PATH:
         case WRITE_FILE:
         case COPY_FILES:
+        case SET_XATTR:
                 break;
 
         case REMOVE_PATH:
@@ -1009,24 +1073,20 @@ static int clean_item_instance(Item *i, const char* instance) {
                 if (errno == ENOENT || errno == ENOTDIR)
                         return 0;
 
-                log_error("Failed to open directory %s: %m", i->path);
+                log_error_errno(errno, "Failed to open directory %s: %m", i->path);
                 return -errno;
         }
 
-        if (fstat(dirfd(d), &s) < 0) {
-                log_error("stat(%s) failed: %m", i->path);
-                return -errno;
-        }
+        if (fstat(dirfd(d), &s) < 0)
+                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
         if (!S_ISDIR(s.st_mode)) {
                 log_error("%s is not a directory.", i->path);
                 return -ENOTDIR;
         }
 
-        if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
-                log_error("stat(%s/..) failed: %m", i->path);
-                return -errno;
-        }
+        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);
@@ -1043,6 +1103,7 @@ static int clean_item(Item *i) {
 
         switch (i->type) {
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case TRUNCATE_DIRECTORY:
         case IGNORE_PATH:
         case COPY_FILES:
@@ -1059,8 +1120,8 @@ static int clean_item(Item *i) {
 }
 
 static int process_item(Item *i) {
-        int r, q, p;
-        char prefix[PATH_MAX];
+        int r, q, p, t = 0;
+        _cleanup_free_ char *prefix = NULL;
 
         assert(i);
 
@@ -1069,25 +1130,31 @@ static int process_item(Item *i) {
 
         i->done = true;
 
+        prefix = malloc(strlen(i->path) + 1);
+        if (!prefix)
+                return log_oom();
+
         PATH_FOREACH_PREFIX(prefix, i->path) {
                 Item *j;
 
                 j = hashmap_get(items, prefix);
-                if (j)
-                        process_item(j);
+                if (j) {
+                        int s;
+
+                        s = process_item(j);
+                        if (s < 0 && t == 0)
+                                t = s;
+                }
         }
 
         r = arg_create ? create_item(i) : 0;
         q = arg_remove ? remove_item(i) : 0;
         p = arg_clean ? clean_item(i) : 0;
 
-        if (r < 0)
-                return r;
-
-        if (q < 0)
-                return q;
-
-        return p;
+        return t < 0 ? t :
+                r < 0 ? r :
+                q < 0 ? q :
+                p;
 }
 
 static void item_free(Item *i) {
@@ -1097,6 +1164,7 @@ static void item_free(Item *i) {
 
         free(i->path);
         free(i->argument);
+        strv_free(i->xattrs);
         free(i);
 }
 
@@ -1236,6 +1304,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
         case CREATE_FILE:
         case TRUNCATE_FILE:
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case TRUNCATE_DIRECTORY:
         case CREATE_FIFO:
         case IGNORE_PATH:
@@ -1295,6 +1364,16 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
                 break;
         }
 
+        case SET_XATTR:
+                if (!i->argument) {
+                        log_error("[%s:%u] Set extended attribute requires argument.", fname, line);
+                        return -EBADMSG;
+                }
+                r = get_xattrs_from_arg(i);
+                if (r < 0)
+                        return r;
+                break;
+
         default:
                 log_error("[%s:%u] Unknown command type '%c'.", fname, line, type);
                 return -EBADMSG;
@@ -1366,6 +1445,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
         } else
                 i->mode =
                         i->type == CREATE_DIRECTORY ||
+                        i->type == CREATE_SUBVOLUME ||
                         i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
 
         if (age && !streq(age, "-")) {
@@ -1388,18 +1468,33 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
 
         existing = hashmap_get(h, i->path);
         if (existing) {
-
-                /* Two identical items are fine */
-                if (!item_equal(existing, i))
-                        log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
-
-                return 0;
-        }
-
-        r = hashmap_put(h, i->path, i);
-        if (r < 0) {
-                log_error("Failed to insert item %s: %s", i->path, strerror(-r));
-                return r;
+                if (i->type == SET_XATTR) {
+                        r = strv_extend_strv(&existing->xattrs, i->xattrs);
+                        if (r < 0)
+                                return log_oom();
+                        return 0;
+                } else if (existing->type == SET_XATTR) {
+                        r = strv_extend_strv(&i->xattrs, existing->xattrs);
+                        if (r < 0)
+                                return log_oom();
+                        r = hashmap_replace(h, i->path, i);
+                        if (r < 0) {
+                                log_error("Failed to replace item for %s.", i->path);
+                                return r;
+                        }
+                        item_free(existing);
+                } else {
+                        /* Two identical items are fine */
+                        if (!item_equal(existing, i))
+                                log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
+                        return 0;
+                }
+        } else {
+                r = hashmap_put(h, i->path, i);
+                if (r < 0) {
+                        log_error("Failed to insert item %s: %s", i->path, strerror(-r));
+                        return r;
+                }
         }
 
         i = NULL; /* avoid cleanup */
@@ -1531,8 +1626,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
                 if (ignore_enoent && r == -ENOENT)
                         return 0;
 
-                log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r));
-                return r;
+                return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn);
         }
 
         FOREACH_LINE(line, f, break) {
@@ -1559,7 +1653,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
                         continue;
 
                 HASHMAP_FOREACH(j, items, iter) {
-                        if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
+                        if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY && j->type != CREATE_SUBVOLUME)
                                 continue;
 
                         if (path_equal(j->path, i->path)) {
@@ -1572,14 +1666,14 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
                                 candidate_item = j;
                 }
 
-                if (candidate_item) {
+                if (candidate_item && candidate_item->age_set) {
                         i->age = candidate_item->age;
                         i->age_set = true;
                 }
         }
 
         if (ferror(f)) {
-                log_error("Failed to read from file %s: %m", fn);
+                log_error_errno(errno, "Failed to read from file %s: %m", fn);
                 if (r == 0)
                         r = -EIO;
         }
@@ -1602,10 +1696,10 @@ int main(int argc, char *argv[]) {
 
         umask(0022);
 
-        label_init(NULL);
+        mac_selinux_init(NULL);
 
-        items = hashmap_new(string_hash_func, string_compare_func);
-        globs = hashmap_new(string_hash_func, string_compare_func);
+        items = hashmap_new(&string_hash_ops);
+        globs = hashmap_new(&string_hash_ops);
 
         if (!items || !globs) {
                 r = log_oom();
@@ -1629,7 +1723,7 @@ int main(int argc, char *argv[]) {
 
                 r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs);
                 if (r < 0) {
-                        log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
+                        log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m");
                         goto finish;
                 }
 
@@ -1640,11 +1734,17 @@ int main(int argc, char *argv[]) {
                 }
         }
 
-        HASHMAP_FOREACH(i, globs, iterator)
-                process_item(i);
+        HASHMAP_FOREACH(i, globs, iterator) {
+                k = process_item(i);
+                if (k < 0 && r == 0)
+                        r = k;
+        }
 
-        HASHMAP_FOREACH(i, items, iterator)
-                process_item(i);
+        HASHMAP_FOREACH(i, items, iterator) {
+                k = process_item(i);
+                if (k < 0 && r == 0)
+                        r = k;
+        }
 
 finish:
         while ((i = hashmap_steal_first(items)))
@@ -1662,7 +1762,7 @@ finish:
 
         set_free_free(unix_sockets);
 
-        label_finish();
+        mac_selinux_finish();
 
         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 }