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
17package android.security;
18
19import android.os.Parcel;
20import android.os.Parcelable;
21
22/**
23 * Class for handling the additional arguments to some keystore binder calls.
24 * This must be kept in sync with the deserialization code in system/security/keystore.
25 * @hide
26 */
27public class KeystoreArguments implements Parcelable {
28    public byte[][] args;
29
30    public static final Parcelable.Creator<KeystoreArguments> CREATOR = new
31            Parcelable.Creator<KeystoreArguments>() {
32                public KeystoreArguments createFromParcel(Parcel in) {
33                    return new KeystoreArguments(in);
34                }
35                public KeystoreArguments[] newArray(int size) {
36                    return new KeystoreArguments[size];
37                }
38            };
39
40    public KeystoreArguments() {
41        args = null;
42    }
43
44    public KeystoreArguments(byte[][] args) {
45        this.args = args;
46    }
47
48    private KeystoreArguments(Parcel in) {
49        readFromParcel(in);
50    }
51
52    @Override
53    public void writeToParcel(Parcel out, int flags) {
54        if (args == null) {
55            out.writeInt(0);
56        } else {
57            out.writeInt(args.length);
58            for (byte[] arg : args) {
59                out.writeByteArray(arg);
60            }
61        }
62    }
63
64    private void readFromParcel(Parcel in) {
65        int length = in.readInt();
66        args = new byte[length][];
67        for (int i = 0; i < length; i++) {
68            args[i] = in.createByteArray();
69        }
70    }
71
72    @Override
73    public int describeContents() {
74        return 0;
75    }
76}
77