1 /* 2 * Copyright (C) 2017 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 #pragma once 17 18 #include <stdint.h> 19 20 #include <netinet/in.h> 21 22 #include "result.h" 23 24 class Router { 25 public: 26 Router(); 27 ~Router(); 28 // Initialize the router, this has to be called before any other methods can 29 // be called. It only needs to be called once. 30 Result init(); 31 32 // Set the default route to |gateway| on the interface specified by 33 // |interfaceIndex|. If the default route is already set up with the same 34 // configuration then nothing is done. If another default route exists it 35 // will be removed and replaced by the new one. If no default route exists 36 // a route will be created with the given parameters. 37 Result setDefaultGateway(in_addr_t gateway, unsigned int interfaceIndex); 38 private: 39 Result sendNetlinkMessage(const void* data, size_t size); 40 41 // Netlink socket for setting up neighbors and routes 42 int mSocketFd; 43 }; 44 45