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_VIRTUAL_NETWORK_H 18 #define NETD_SERVER_VIRTUAL_NETWORK_H 19 20 #include "Network.h" 21 #include "UidRanges.h" 22 23 // A VirtualNetwork may be "secure" or not. 24 // 25 // A secure VPN is the usual type of VPN that grabs the default route (and thus all user traffic). 26 // Only a few privileged UIDs may skip the VPN and go directly to the underlying physical network. 27 // 28 // A non-secure VPN ("bypassable" VPN) also grabs all user traffic by default. But all apps are 29 // permitted to skip it and pick any other network for their connections. 30 class VirtualNetwork : public Network { 31 public: 32 VirtualNetwork(unsigned netId, bool hasDns, bool secure); 33 virtual ~VirtualNetwork(); 34 35 bool getHasDns() const; 36 bool isSecure() const; 37 bool appliesToUser(uid_t uid) const; 38 39 int addUsers(const UidRanges& uidRanges) WARN_UNUSED_RESULT; 40 int removeUsers(const UidRanges& uidRanges) WARN_UNUSED_RESULT; 41 42 private: 43 Type getType() const override; 44 int addInterface(const std::string& interface) override WARN_UNUSED_RESULT; 45 int removeInterface(const std::string& interface) override WARN_UNUSED_RESULT; 46 47 const bool mHasDns; 48 const bool mSecure; 49 UidRanges mUidRanges; 50 }; 51 52 #endif // NETD_SERVER_VIRTUAL_NETWORK_H 53