nspawn: Enable specifying root as the mount target directory.

Fixes #3847.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/nspawn/nspawn-mount.h b/src/nspawn/nspawn-mount.h
index ff6990c734..08d3e68f29 100644
--- a/src/nspawn/nspawn-mount.h
+++ b/src/nspawn/nspawn-mount.h
@@ -14,6 +14,8 @@ typedef enum MountSettingsMask {
         MOUNT_APPLY_APIVFS_NETNS = 1 << 4, /* if set, /proc/sys/net will be mounted read-write.
                                                Works only if MOUNT_APPLY_APIVFS_RO is also set. */
         MOUNT_APPLY_TMPFS_TMP    = 1 << 5, /* if set, /tmp will be mounted as tmpfs */
+        MOUNT_ROOT_ONLY          = 1 << 6, /* if set, only root mounts are mounted */
+        MOUNT_NON_ROOT_ONLY      = 1 << 7, /* if set, only non-root mounts are mounted */
 } MountSettingsMask;
 
 typedef enum CustomMountType {
@@ -52,7 +54,7 @@ int inaccessible_mount_parse(CustomMount **l, size_t *n, const char *s);
 int mount_all(const char *dest, MountSettingsMask mount_settings, uid_t uid_shift, const char *selinux_apifs_context);
 int mount_sysfs(const char *dest, MountSettingsMask mount_settings);
 
-int mount_custom(const char *dest, CustomMount *mounts, size_t n, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context, bool in_userns);
+int mount_custom(const char *dest, CustomMount *mounts, size_t n, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context, MountSettingsMask mount_settings);
 
 int setup_volatile_mode(const char *directory, VolatileMode mode, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context);