1 /*
2  * Copyright (C) 2015 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 package android.net.netlink;
18 
19 import android.net.netlink.StructNlMsgHdr;
20 import android.net.netlink.NetlinkMessage;
21 
22 import java.nio.ByteBuffer;
23 
24 
25 /**
26  * A NetlinkMessage subclass for netlink error messages.
27  *
28  * @hide
29  */
30 public class NetlinkErrorMessage extends NetlinkMessage {
31 
parse(StructNlMsgHdr header, ByteBuffer byteBuffer)32     public static NetlinkErrorMessage parse(StructNlMsgHdr header, ByteBuffer byteBuffer) {
33         final NetlinkErrorMessage errorMsg = new NetlinkErrorMessage(header);
34 
35         errorMsg.mNlMsgErr = StructNlMsgErr.parse(byteBuffer);
36         if (errorMsg.mNlMsgErr == null) {
37             return null;
38         }
39 
40         return errorMsg;
41     }
42 
43     private StructNlMsgErr mNlMsgErr;
44 
NetlinkErrorMessage(StructNlMsgHdr header)45     NetlinkErrorMessage(StructNlMsgHdr header) {
46         super(header);
47         mNlMsgErr = null;
48     }
49 
getNlMsgError()50     public StructNlMsgErr getNlMsgError() {
51         return mNlMsgErr;
52     }
53 
54     @Override
toString()55     public String toString() {
56         return "NetlinkErrorMessage{ "
57                 + "nlmsghdr{" + (mHeader == null ? "" : mHeader.toString()) + "}, "
58                 + "nlmsgerr{" + (mNlMsgErr == null ? "" : mNlMsgErr.toString()) + "} "
59                 + "}";
60     }
61 }
62