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 com.android.server.wifi.hotspot2.anqp.eap;
18 
19 import com.android.internal.annotations.VisibleForTesting;
20 
21 import java.nio.BufferUnderflowException;
22 import java.nio.ByteBuffer;
23 import java.util.Arrays;
24 
25 /**
26  * The Vendor Specific authentication parameter, IEEE802.11-2012, table 8-188.
27  *
28  * Format:
29  * | Data |
30  * variable
31  */
32 public class VendorSpecificAuth extends AuthParam {
33     private final byte[] mData;
34 
35     @VisibleForTesting
VendorSpecificAuth(byte[] data)36     public VendorSpecificAuth(byte[] data) {
37         super(AuthParam.PARAM_TYPE_VENDOR_SPECIFIC);
38         mData = data;
39     }
40 
41     /**
42      * Parse a VendorSpecificAuth from the given buffer.
43      *
44      * @param payload The byte buffer to read from
45      * @param length The length of the data
46      * @return {@link VendorSpecificAuth}
47      * @throws BufferUnderflowException
48      */
parse(ByteBuffer payload, int length)49     public static VendorSpecificAuth parse(ByteBuffer payload, int length) {
50         byte[] data = new byte[length];
51         payload.get(data);
52         return new VendorSpecificAuth(data);
53     }
54 
getData()55     public byte[] getData() {
56         return mData;
57     }
58 
59     @Override
equals(Object thatObject)60     public boolean equals(Object thatObject) {
61         if (thatObject == this) {
62             return true;
63         }
64         if (!(thatObject instanceof VendorSpecificAuth)) {
65             return false;
66         }
67         VendorSpecificAuth that = (VendorSpecificAuth) thatObject;
68         return Arrays.equals(mData, that.mData);
69     }
70 
71     @Override
hashCode()72     public int hashCode() {
73         return Arrays.hashCode(mData);
74     }
75 
76     @Override
toString()77     public String toString() {
78         return "VendorSpecificAuth{mData=" + Arrays.toString(mData) + "}";
79     }
80 }
81