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
|
/*
* Copyright (C) 2020 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 com.android.server.biometrics.sensors.fingerprint.hidl;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.content.Context;
import android.hardware.biometrics.BiometricAuthenticator;
import android.hardware.biometrics.BiometricFingerprintConstants;
import android.hardware.biometrics.BiometricsProtoEnums;
import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
import android.hardware.fingerprint.IUdfpsOverlayController;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Slog;
import com.android.server.biometrics.BiometricsProto;
import com.android.server.biometrics.sensors.AcquisitionClient;
import com.android.server.biometrics.sensors.AuthenticationConsumer;
import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
import com.android.server.biometrics.sensors.PerformanceTracker;
import com.android.server.biometrics.sensors.fingerprint.Udfps;
import com.android.server.biometrics.sensors.fingerprint.UdfpsHelper;
import java.util.ArrayList;
/**
* Performs fingerprint detection without exposing any matching information (e.g. accept/reject
* have the same haptic, lockout counter is not increased).
*/
class FingerprintDetectClient extends AcquisitionClient<IBiometricsFingerprint>
implements AuthenticationConsumer, Udfps {
private static final String TAG = "FingerprintDetectClient";
private final boolean mIsStrongBiometric;
@Nullable private final IUdfpsOverlayController mUdfpsOverlayController;
public FingerprintDetectClient(@NonNull Context context,
@NonNull LazyDaemon<IBiometricsFingerprint> lazyDaemon, @NonNull IBinder token,
@NonNull ClientMonitorCallbackConverter listener, int userId, @NonNull String owner,
int sensorId, @Nullable IUdfpsOverlayController udfpsOverlayController,
boolean isStrongBiometric, int statsClient) {
super(context, lazyDaemon, token, listener, userId, owner, 0 /* cookie */, sensorId,
BiometricsProtoEnums.MODALITY_FINGERPRINT, BiometricsProtoEnums.ACTION_AUTHENTICATE,
statsClient);
mUdfpsOverlayController = udfpsOverlayController;
mIsStrongBiometric = isStrongBiometric;
}
@Override
protected void stopHalOperation() {
UdfpsHelper.hideUdfpsOverlay(getSensorId(), mUdfpsOverlayController);
try {
getFreshDaemon().cancel();
} catch (RemoteException e) {
Slog.e(TAG, "Remote exception when requesting cancel", e);
onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
0 /* vendorCode */);
mCallback.onClientFinished(this, false /* success */);
}
}
@Override
public void start(@NonNull Callback callback) {
super.start(callback);
startHalOperation();
}
@Override
protected void startHalOperation() {
UdfpsHelper.showUdfpsOverlay(getSensorId(),
IUdfpsOverlayController.REASON_AUTH_FPM_KEYGUARD,
mUdfpsOverlayController, this);
try {
getFreshDaemon().authenticate(0 /* operationId */, getTargetUserId());
} catch (RemoteException e) {
Slog.e(TAG, "Remote exception when requesting auth", e);
onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
0 /* vendorCode */);
UdfpsHelper.hideUdfpsOverlay(getSensorId(), mUdfpsOverlayController);
mCallback.onClientFinished(this, false /* success */);
}
}
@Override
public void onPointerDown(int x, int y, float minor, float major) {
UdfpsHelper.onFingerDown(getFreshDaemon(), x, y, minor, major);
}
@Override
public void onPointerUp() {
UdfpsHelper.onFingerUp(getFreshDaemon());
}
@Override
public void onUiReady() {
// Unsupported in HIDL.
}
@Override
public void onAuthenticated(BiometricAuthenticator.Identifier identifier, boolean authenticated,
ArrayList<Byte> hardwareAuthToken) {
logOnAuthenticated(getContext(), authenticated, false /* requireConfirmation */,
getTargetUserId(), false /* isBiometricPrompt */);
// Do not distinguish between success/failures.
vibrateSuccess();
final PerformanceTracker pm = PerformanceTracker.getInstanceForSensorId(getSensorId());
pm.incrementAuthForUser(getTargetUserId(), authenticated);
try {
getListener().onDetected(getSensorId(), getTargetUserId(), mIsStrongBiometric);
} catch (RemoteException e) {
Slog.e(TAG, "Remote exception when sending onDetected", e);
}
}
@Override
public int getProtoEnum() {
return BiometricsProto.CM_DETECT_INTERACTION;
}
@Override
public boolean interruptsPrecedingClients() {
return true;
}
}
|
