1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.security;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.os.ServiceManager;
import android.os.ServiceSpecificException;
import android.security.maintenance.IKeystoreMaintenance;
import android.system.keystore2.Domain;
import android.system.keystore2.ResponseCode;
import android.util.Log;
/**
* @hide This is the client side for IKeystoreUserManager AIDL.
* It shall only be used by the LockSettingsService.
*/
public class AndroidKeyStoreMaintenance {
private static final String TAG = "AndroidKeyStoreMaintenance";
public static final int SYSTEM_ERROR = ResponseCode.SYSTEM_ERROR;
private static IKeystoreMaintenance getService() {
return IKeystoreMaintenance.Stub.asInterface(
ServiceManager.checkService("android.security.maintenance"));
}
/**
* Informs Keystore 2.0 about adding a user
*
* @param userId - Android user id of the user being added
* @return 0 if successful or a {@code ResponseCode}
* @hide
*/
public static int onUserAdded(@NonNull int userId) {
if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
try {
getService().onUserAdded(userId);
return 0;
} catch (ServiceSpecificException e) {
Log.e(TAG, "onUserAdded failed", e);
return e.errorCode;
} catch (Exception e) {
Log.e(TAG, "Can not connect to keystore", e);
return SYSTEM_ERROR;
}
}
/**
* Informs Keystore 2.0 about removing a usergit mer
*
* @param userId - Android user id of the user being removed
* @return 0 if successful or a {@code ResponseCode}
* @hide
*/
public static int onUserRemoved(int userId) {
if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
try {
getService().onUserRemoved(userId);
return 0;
} catch (ServiceSpecificException e) {
Log.e(TAG, "onUserRemoved failed", e);
return e.errorCode;
} catch (Exception e) {
Log.e(TAG, "Can not connect to keystore", e);
return SYSTEM_ERROR;
}
}
/**
* Informs Keystore 2.0 about changing user's password
*
* @param userId - Android user id of the user
* @param password - a secret derived from the synthetic password provided by the
* LockSettingService
* @return 0 if successful or a {@code ResponseCode}
* @hide
*/
public static int onUserPasswordChanged(int userId, @Nullable byte[] password) {
if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
try {
getService().onUserPasswordChanged(userId, password);
return 0;
} catch (ServiceSpecificException e) {
Log.e(TAG, "onUserPasswordChanged failed", e);
return e.errorCode;
} catch (Exception e) {
Log.e(TAG, "Can not connect to keystore", e);
return SYSTEM_ERROR;
}
}
/**
* Informs Keystore 2.0 that an app was uninstalled and the corresponding namspace is to
* be cleared.
*/
public static int clearNamespace(@Domain int domain, long namespace) {
if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
try {
getService().clearNamespace(domain, namespace);
return 0;
} catch (ServiceSpecificException e) {
Log.e(TAG, "clearNamespace failed", e);
return e.errorCode;
} catch (Exception e) {
Log.e(TAG, "Can not connect to keystore", e);
return SYSTEM_ERROR;
}
}
/**
* Queries user state from Keystore 2.0.
*
* @param userId - Android user id of the user.
* @return UserState enum variant as integer if successful or an error
*/
public static int getState(int userId) {
try {
return getService().getState(userId);
} catch (ServiceSpecificException e) {
Log.e(TAG, "getState failed", e);
return e.errorCode;
} catch (Exception e) {
Log.e(TAG, "Can not connect to keystore", e);
return SYSTEM_ERROR;
}
}
/**
* Informs Keystore 2.0 that an off body event was detected.
*/
public static void onDeviceOffBody() {
if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return;
try {
getService().onDeviceOffBody();
} catch (Exception e) {
// TODO This fails open. This is not a regression with respect to keystore1 but it
// should get fixed.
Log.e(TAG, "Error while reporting device off body event.", e);
}
}
}
|
