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 
17 package com.android.server.pm;
18 
19 import android.util.ArraySet;
20 import android.util.LongSparseArray;
21 
22 import java.lang.reflect.Field;
23 import java.security.PublicKey;
24 
25 public class KeySetUtils {
26 
getPubKey(KeySetManagerService ksms, long pkId)27     public static PublicKey getPubKey(KeySetManagerService ksms, long pkId)
28             throws NoSuchFieldException, IllegalAccessException {
29         Field pkField = ksms.getClass().getDeclaredField("mPublicKeys");
30         pkField.setAccessible(true);
31         LongSparseArray<KeySetManagerService.PublicKeyHandle> mPublicKeys =
32             (LongSparseArray<KeySetManagerService.PublicKeyHandle>) pkField.get(ksms);
33         KeySetManagerService.PublicKeyHandle pkh = mPublicKeys.get(pkId);
34         if (pkh == null) {
35             return null;
36         } else {
37             return pkh.getKey();
38         }
39     }
40 
getPubKeyRefCount(KeySetManagerService ksms, long pkId)41     public static int getPubKeyRefCount(KeySetManagerService ksms, long pkId)
42             throws NoSuchFieldException, IllegalAccessException {
43         Field pkField = ksms.getClass().getDeclaredField("mPublicKeys");
44         pkField.setAccessible(true);
45         LongSparseArray<KeySetManagerService.PublicKeyHandle> mPublicKeys =
46             (LongSparseArray<KeySetManagerService.PublicKeyHandle>) pkField.get(ksms);
47         KeySetManagerService.PublicKeyHandle pkh = mPublicKeys.get(pkId);
48         if (pkh == null) {
49             return 0;
50         } else {
51             return pkh.getRefCountLPr();
52         }
53     }
54 
getKeySetRefCount(KeySetManagerService ksms, long keysetId)55     public static int getKeySetRefCount(KeySetManagerService ksms, long keysetId)
56             throws NoSuchFieldException, IllegalAccessException {
57         Field ksField = ksms.getClass().getDeclaredField("mKeySets");
58         ksField.setAccessible(true);
59         LongSparseArray<KeySetHandle> mKeySets =
60             (LongSparseArray<KeySetHandle>) ksField.get(ksms);
61         KeySetHandle ksh = mKeySets.get(keysetId);
62         if (ksh == null) {
63             return 0;
64         } else {
65             return ksh.getRefCountLPr();
66         }
67     }
68 
getKeySetMapping(KeySetManagerService ksms)69     public static LongSparseArray<ArraySet<Long>> getKeySetMapping(KeySetManagerService ksms)
70             throws NoSuchFieldException, IllegalAccessException {
71         Field ksField = ksms.getClass().getDeclaredField("mKeySetMapping");
72         ksField.setAccessible(true);
73         return (LongSparseArray<ArraySet<Long>>) ksField.get(ksms);
74     }
75 
getLastIssuedKeyId(KeySetManagerService ksms)76     public static Long getLastIssuedKeyId(KeySetManagerService ksms)
77             throws NoSuchFieldException, IllegalAccessException {
78         Field ksField = ksms.getClass().getDeclaredField("lastIssuedKeyId");
79         ksField.setAccessible(true);
80         return (Long) ksField.get(ksms);
81     }
82 
getLastIssuedKeySetId(KeySetManagerService ksms)83     public static Long getLastIssuedKeySetId(KeySetManagerService ksms)
84             throws NoSuchFieldException, IllegalAccessException {
85         Field ksField = ksms.getClass().getDeclaredField("lastIssuedKeySetId");
86         ksField.setAccessible(true);
87         return (Long) ksField.get(ksms);
88     }
89 }
90