1 /* 2 * Copyright (C) 2008 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 #ifndef _TETHER_CONTROLLER_H 18 #define _TETHER_CONTROLLER_H 19 20 #include <netinet/in.h> 21 22 #include "List.h" 23 24 typedef android::netd::List<char *> InterfaceCollection; 25 typedef android::netd::List<struct in_addr> NetAddressCollection; 26 27 class TetherController { 28 InterfaceCollection *mInterfaces; 29 // NetId to use for forwarded DNS queries. This may not be the default 30 // network, e.g., in the case where we are tethering to a DUN APN. 31 unsigned mDnsNetId; 32 NetAddressCollection *mDnsForwarders; 33 pid_t mDaemonPid; 34 int mDaemonFd; 35 36 public: 37 TetherController(); 38 virtual ~TetherController(); 39 40 int setIpFwdEnabled(bool enable); 41 bool getIpFwdEnabled(); 42 43 int startTethering(int num_addrs, struct in_addr* addrs); 44 45 int stopTethering(); 46 bool isTetheringStarted(); 47 48 unsigned getDnsNetId(); 49 int setDnsForwarders(unsigned netId, char **servers, int numServers); 50 NetAddressCollection *getDnsForwarders(); 51 52 int tetherInterface(const char *interface); 53 int untetherInterface(const char *interface); 54 InterfaceCollection *getTetheredInterfaceList(); 55 56 private: 57 int applyDnsInterfaces(); 58 }; 59 60 #endif 61