1 /*
2  * Copyright (C) 2016 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.app.admin;
18 
19 import android.os.Parcel;
20 import android.os.Parcelable;
21 
22 import java.net.InetAddress;
23 import java.net.UnknownHostException;
24 
25 /**
26  * A class that represents a TCP connect event initiated through the standard network stack.
27  *
28  * <p>It contains information about the originating app as well as the remote TCP endpoint.
29  *
30  * <p>Support both IPv4 and IPv6 connections.
31  */
32 public final class ConnectEvent extends NetworkEvent implements Parcelable {
33 
34     /** The destination IP address. */
35     private final String mIpAddress;
36 
37     /** The destination port number. */
38     private final int mPort;
39 
40     /** @hide */
ConnectEvent(String ipAddress, int port, String packageName, long timestamp)41     public ConnectEvent(String ipAddress, int port, String packageName, long timestamp) {
42         super(packageName, timestamp);
43         this.mIpAddress = ipAddress;
44         this.mPort = port;
45     }
46 
ConnectEvent(Parcel in)47     private ConnectEvent(Parcel in) {
48         this.mIpAddress = in.readString();
49         this.mPort = in.readInt();
50         this.mPackageName = in.readString();
51         this.mTimestamp = in.readLong();
52         this.mId = in.readLong();
53     }
54 
getInetAddress()55     public InetAddress getInetAddress() {
56         try {
57             // ipAddress is already an address, not a host name, no DNS resolution will happen.
58             return InetAddress.getByName(mIpAddress);
59         } catch (UnknownHostException e) {
60             // Should never happen as we aren't passing a host name.
61             return InetAddress.getLoopbackAddress();
62         }
63     }
64 
getPort()65     public int getPort() {
66         return mPort;
67     }
68 
69     @Override
toString()70     public String toString() {
71         return String.format("ConnectEvent(%d, %s, %d, %d, %s)", mId, mIpAddress, mPort, mTimestamp,
72                 mPackageName);
73     }
74 
75     public static final @android.annotation.NonNull Parcelable.Creator<ConnectEvent> CREATOR
76             = new Parcelable.Creator<ConnectEvent>() {
77         @Override
78         public ConnectEvent createFromParcel(Parcel in) {
79             if (in.readInt() != PARCEL_TOKEN_CONNECT_EVENT) {
80                 return null;
81             }
82             return new ConnectEvent(in);
83         }
84 
85         @Override
86         public ConnectEvent[] newArray(int size) {
87             return new ConnectEvent[size];
88         }
89     };
90 
91     @Override
describeContents()92     public int describeContents() {
93         return 0;
94     }
95 
96     @Override
writeToParcel(Parcel out, int flags)97     public void writeToParcel(Parcel out, int flags) {
98         // write parcel token first
99         out.writeInt(PARCEL_TOKEN_CONNECT_EVENT);
100         out.writeString(mIpAddress);
101         out.writeInt(mPort);
102         out.writeString(mPackageName);
103         out.writeLong(mTimestamp);
104         out.writeLong(mId);
105     }
106 }
107