1 /*
2  * Copyright (C) 2018 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;
18 
19 import android.os.Parcel;
20 import android.os.Parcelable;
21 
22 import java.net.InetAddress;
23 import java.net.InetSocketAddress;
24 import java.net.UnknownHostException;
25 
26 /**
27  * Describe a network connection including local and remote address/port of a connection and the
28  * transport protocol.
29  *
30  * @hide
31  */
32 public final class ConnectionInfo implements Parcelable {
33     public final int protocol;
34     public final InetSocketAddress local;
35     public final InetSocketAddress remote;
36 
37     @Override
describeContents()38     public int describeContents() {
39         return 0;
40     }
41 
ConnectionInfo(int protocol, InetSocketAddress local, InetSocketAddress remote)42     public ConnectionInfo(int protocol, InetSocketAddress local, InetSocketAddress remote) {
43         this.protocol = protocol;
44         this.local = local;
45         this.remote = remote;
46     }
47 
48     @Override
writeToParcel(Parcel out, int flags)49     public void writeToParcel(Parcel out, int flags) {
50         out.writeInt(protocol);
51         out.writeByteArray(local.getAddress().getAddress());
52         out.writeInt(local.getPort());
53         out.writeByteArray(remote.getAddress().getAddress());
54         out.writeInt(remote.getPort());
55     }
56 
57     public static final @android.annotation.NonNull Creator<ConnectionInfo> CREATOR = new Creator<ConnectionInfo>() {
58         public ConnectionInfo createFromParcel(Parcel in) {
59             int protocol = in.readInt();
60             InetAddress localAddress;
61             try {
62                 localAddress = InetAddress.getByAddress(in.createByteArray());
63             } catch (UnknownHostException e) {
64                 throw new IllegalArgumentException("Invalid InetAddress");
65             }
66             int localPort = in.readInt();
67             InetAddress remoteAddress;
68             try {
69                 remoteAddress = InetAddress.getByAddress(in.createByteArray());
70             } catch (UnknownHostException e) {
71                 throw new IllegalArgumentException("Invalid InetAddress");
72             }
73             int remotePort = in.readInt();
74             InetSocketAddress local = new InetSocketAddress(localAddress, localPort);
75             InetSocketAddress remote = new InetSocketAddress(remoteAddress, remotePort);
76             return new ConnectionInfo(protocol, local, remote);
77         }
78 
79         public ConnectionInfo[] newArray(int size) {
80             return new ConnectionInfo[size];
81         }
82     };
83 }
84