KeymasterBooleanArgument.java revision 8effa36ca6440604cf10bbc34fba2b60ff304f54 
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.keymaster;
18
19import android.os.Parcel;
20
21/**
22 * @hide
23 */
24class KeymasterBooleanArgument extends KeymasterArgument {
25
26    // Boolean arguments are always true if they exist and false if they don't.
27    public final boolean value = true;
28
29    public KeymasterBooleanArgument(int tag) {
30        super(tag);
31        switch (KeymasterDefs.getTagType(tag)) {
32            case KeymasterDefs.KM_BOOL:
33                break; // OK.
34            default:
35                throw new IllegalArgumentException("Bad bool tag " + tag);
36        }
37    }
38
39    public KeymasterBooleanArgument(int tag, Parcel in) {
40        super(tag);
41    }
42
43    @Override
44    public void writeValue(Parcel out) {
45        // Do nothing, value is implicit.
46    }
47}
48