qubes-mirage-firewall/router.mli
Thomas Leonard 63cbb4bed0 Ensure that old client has quit before adding new one
Not sure if this can happen, but it removes a TODO from the code.
2016-09-25 16:36:18 +01:00

35 lines
968 B
OCaml

(* Copyright (C) 2015, Thomas Leonard <thomas.leonard@unikernel.com>
See the README file for details. *)
(** Routing packets to the right network interface. *)
open Utils
type t = private {
client_eth : Client_eth.t;
mutable nat : Nat_lookup.t;
uplink : interface;
}
(** A routing table. *)
val create :
client_eth:Client_eth.t ->
uplink:interface ->
t
(** [create ~client_eth ~uplink] is a new routing table
that routes packets outside of [client_eth] via [uplink]. *)
val target : t -> Cstruct.t -> interface option
(** [target t packet] is the interface to which [packet] (an IP packet) should be routed. *)
val add_client : t -> client_link -> unit Lwt.t
(** [add_client t iface] adds a rule for routing packets addressed to [iface]. *)
val remove_client : t -> client_link -> unit
val classify : t -> Ipaddr.t -> Packet.host
val resolve : t -> Packet.host -> Ipaddr.t
val reset : t -> unit
(** Clear the NAT table (to free memory). *)