val get_ipv4_hlen_version : Cstruct.t -> Cstruct.uint8val set_ipv4_hlen_version : Cstruct.t -> Cstruct.uint8 -> unitval get_ipv4_tos : Cstruct.t -> Cstruct.uint8val set_ipv4_tos : Cstruct.t -> Cstruct.uint8 -> unitval get_ipv4_len : Cstruct.t -> Cstruct.uint16val set_ipv4_len : Cstruct.t -> Cstruct.uint16 -> unitval get_ipv4_id : Cstruct.t -> Cstruct.uint16val set_ipv4_id : Cstruct.t -> Cstruct.uint16 -> unitval get_ipv4_off : Cstruct.t -> Cstruct.uint16val set_ipv4_off : Cstruct.t -> Cstruct.uint16 -> unitval get_ipv4_ttl : Cstruct.t -> Cstruct.uint8val set_ipv4_ttl : Cstruct.t -> Cstruct.uint8 -> unitval get_ipv4_proto : Cstruct.t -> Cstruct.uint8val set_ipv4_proto : Cstruct.t -> Cstruct.uint8 -> unitval get_ipv4_csum : Cstruct.t -> Cstruct.uint16val set_ipv4_csum : Cstruct.t -> Cstruct.uint16 -> unitval get_ipv4_src : Cstruct.t -> Cstruct.uint32val set_ipv4_src : Cstruct.t -> Cstruct.uint32 -> unitval get_ipv4_dst : Cstruct.t -> Cstruct.uint32val set_ipv4_dst : Cstruct.t -> Cstruct.uint32 -> unitval hexdump_ipv4_to_buffer : Stdlib.Buffer.t -> Cstruct.t -> unitval hexdump_ipv4 : Cstruct.t -> unit