1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <functional> 20 21 #include "common/libs/fs/shared_fd.h" 22 23 namespace cuttlefish { 24 // Executes a TCP proxy 25 // Accept() is called on the server in a loop, for every client connection a 26 // target connection is created through the conn_factory callback and data is 27 // forwarded between the two connections. 28 // This function is meant to execute forever, but will return if the server is 29 // closed in another thread. It's recommended the caller disables the default 30 // behavior for SIGPIPE before calling this function, otherwise it runs the risk 31 // or crashing the process when a connection breaks. 32 void Proxy(SharedFD server, std::function<SharedFD()> conn_factory); 33 } // namespace cuttlefish 34