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:
NetlinkClient()29   NetlinkClient() {}
~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