1 /* 2 * Copyright (C) 2014 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 NETD_SERVER_NETWORK_H 18 #define NETD_SERVER_NETWORK_H 19 20 #include "NetdConstants.h" 21 22 #include <set> 23 #include <string> 24 25 namespace android { 26 namespace net { 27 28 // A Network represents a collection of interfaces participating as a single administrative unit. 29 class Network { 30 public: 31 enum Type { 32 DUMMY, 33 LOCAL, 34 PHYSICAL, 35 VIRTUAL, 36 }; 37 38 // You MUST ensure that no interfaces are still assigned to this network, say by calling 39 // clearInterfaces(), before deleting it. This is because interface removal may fail. If we 40 // automatically removed interfaces in the destructor, you wouldn't know if it failed. 41 virtual ~Network(); 42 43 virtual Type getType() const = 0; 44 unsigned getNetId() const; 45 46 bool hasInterface(const std::string& interface) const; 47 const std::set<std::string>& getInterfaces() const; 48 49 // These return 0 on success or negative errno on failure. 50 virtual int addInterface(const std::string& interface) WARN_UNUSED_RESULT = 0; 51 virtual int removeInterface(const std::string& interface) WARN_UNUSED_RESULT = 0; 52 int clearInterfaces() WARN_UNUSED_RESULT; 53 54 std::string toString() const; 55 56 protected: 57 explicit Network(unsigned netId); 58 59 const unsigned mNetId; 60 std::set<std::string> mInterfaces; 61 }; 62 63 } // namespace net 64 } // namespace android 65 66 #endif // NETD_SERVER_NETWORK_H 67