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