// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library fuchsia.developer.ffx;
using fuchsia.device;
using fuchsia.net;

type TunnelError = strict enum {
    /// Could not listen on the port from which we were attempting to forward.
    COULD_NOT_LISTEN = 1;
    /// Could not connect to the target to establish a tunnel.
    TARGET_CONNECT_FAILED = 2;
};

@discoverable
protocol Tunnel {
    /// Forwards a TCP port on the host to the target address, from the target node.
    ForwardPort(struct {
        target string:<fuchsia.device.DEVICE_NAME_MAX>;
        host_address fuchsia.net.SocketAddress;
        target_address fuchsia.net.SocketAddress;
    }) -> (struct {}) error TunnelError;

    /// Forwards a TCP port on the target to the host address, from the host.
    ReversePort(struct {
        target string:<fuchsia.device.DEVICE_NAME_MAX>;
        host_address fuchsia.net.SocketAddress;
        target_address fuchsia.net.SocketAddress;
    }) -> (struct {}) error TunnelError;
};