external lstat : t -> string -> stat = "ocaml_guestfs_lstat"
external statvfs : t -> string -> statvfs = "ocaml_guestfs_statvfs"
external tune2fs_l : t -> string -> (string * string) list = "ocaml_guestfs_tune2fs_l"
+external blockdev_setro : t -> string -> unit = "ocaml_guestfs_blockdev_setro"
+external blockdev_setrw : t -> string -> unit = "ocaml_guestfs_blockdev_setrw"
+external blockdev_getro : t -> string -> bool = "ocaml_guestfs_blockdev_getro"
+external blockdev_getss : t -> string -> int = "ocaml_guestfs_blockdev_getss"
+external blockdev_getbsz : t -> string -> int = "ocaml_guestfs_blockdev_getbsz"
+external blockdev_setbsz : t -> string -> int -> unit = "ocaml_guestfs_blockdev_setbsz"
+external blockdev_getsz : t -> string -> int64 = "ocaml_guestfs_blockdev_getsz"
+external blockdev_getsize64 : t -> string -> int64 = "ocaml_guestfs_blockdev_getsize64"
+external blockdev_flushbufs : t -> string -> unit = "ocaml_guestfs_blockdev_flushbufs"
+external blockdev_rereadpt : t -> string -> unit = "ocaml_guestfs_blockdev_rereadpt"