blob: 240b98fc446951018089c9fcc7872a5cf5b4b782 [file] [log] [blame]
// Copyright 2020 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.testing.proxy;
/// A protocol that enables creating TCP proxies so that host tests may
/// access debug services that normally accept only local connections.
/// For example, if web browser exposes a debug HTTP service listening on
/// [::1]:9999, TcpProxyControl may listen on [::]:10000 and forward requests
/// to port 9999. The host test then calls port 10000 to access the web browser's
/// debug service.
protocol TcpProxyControl {
/// Opens a proxy to the given |target_port|. If a proxy is already open
/// for the specified |target_port|, the existing |open_port| is returned.
/// The proxy remains open as long as at least a single client keeps their
/// |proxy_token| handle for the specified |target_port|. Once all the
/// |proxy_token| handles are closed, the proxy is closed. |proxy_port| is
/// the source port where the proxy is opened. Except when the test running
/// on remote host needs to reach a local device, its value is 0. This is
/// only useful when the user has tunneled these ports to the local device
/// and specified that port number as |proxy_port|.
OpenProxy(uint16 target_port, uint16 proxy_port, request<TcpProxy> tcp_proxy) -> (uint16 open_port);
/// An empty protocol which serves as a token for a proxy started with
/// |TcpProxyControl.OpenProxy|. The proxy stays open as long as at least one
/// |TcpProxy| channel corresponding to the proxy remains open. Note that the
/// server may close the channel in the case an error is encountered.
protocol TcpProxy {