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      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 #ifndef COMMON_LIBS_NET_NETLINK_CLIENT_H_
     17 #define COMMON_LIBS_NET_NETLINK_CLIENT_H_
     18 
     19 #include <stddef.h>
     20 #include <memory>
     21 #include <string>
     22 #include "common/libs/net/netlink_request.h"
     23 
     24 namespace cvd {
     25 
     26 // Abstraction of Netlink client class.
     27 class NetlinkClient {
     28  public:
     29   NetlinkClient() {}
     30   virtual ~NetlinkClient() {}
     31 
     32   // Send netlink message to kernel.
     33   virtual bool Send(const NetlinkRequest& message) = 0;
     34 
     35  private:
     36   NetlinkClient(const NetlinkClient&);
     37   NetlinkClient& operator= (const NetlinkClient&);
     38 };
     39 
     40 class NetlinkClientFactory {
     41  public:
     42   // Create new NetlinkClient instance of a specified type.
     43   // type can be any of the NETLINK_* types (eg. NETLINK_ROUTE).
     44   virtual std::unique_ptr<NetlinkClient> New(int type) = 0;
     45 
     46   static NetlinkClientFactory* Default();
     47 
     48  protected:
     49   NetlinkClientFactory() = default;
     50   virtual ~NetlinkClientFactory() = default;
     51 };
     52 
     53 }  // namespace cvd
     54 
     55 #endif  // COMMON_LIBS_NET_NETLINK_CLIENT_H_
     56