qubes-mirage-firewall/my_nat.mli
2022-10-11 13:30:45 +02:00

28 lines
706 B
OCaml

(* Copyright (C) 2015, Thomas Leonard <thomas.leonard@unikernel.com>
See the README file for details. *)
(* Abstract over NAT interface (todo: remove this) *)
type ports = private {
nat_tcp : Ports.t ref;
nat_udp : Ports.t ref;
nat_icmp : Ports.t ref;
dns_udp : Ports.t ref;
}
val empty_ports : unit -> ports
type t
type action = [
| `NAT
| `Redirect of Mirage_nat.endpoint
]
val create : max_entries:int -> t
val reset : t -> ports -> unit
val remove_connections : t -> ports -> Ipaddr.V4.t -> unit
val translate : t -> Nat_packet.t -> Nat_packet.t option
val add_nat_rule_and_translate : t -> ports ->
xl_host:Ipaddr.V4.t -> action -> Nat_packet.t -> (Nat_packet.t, string) result