Fingerprint: Add Set Active Group

Change-Id: Ie9d63c5f948c9610bd6b19a76bffab5ae0070620
Signed-off-by: Sasha Levitskiy <sanek@google.com>

2 files changed, 25 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/fingerprint/FingerprintService.java b/services/core/java/com/android/server/fingerprint/FingerprintService.java
index ed8519a..0faccc6 100644
--- a/services/core/java/com/android/server/fingerprint/FingerprintService.java
+++ b/services/core/java/com/android/server/fingerprint/FingerprintService.java
@@ -16,10 +16,12 @@
 
 package com.android.server.fingerprint;
 
+import android.app.ActivityManager;
 import android.app.AppOpsManager;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.os.Binder;
+import android.os.Environment;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
@@ -38,6 +40,7 @@ import android.hardware.fingerprint.IFingerprintServiceReceiver;
 import static android.Manifest.permission.MANAGE_FINGERPRINT;
 import static android.Manifest.permission.USE_FINGERPRINT;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -116,6 +119,7 @@ public class FingerprintService extends SystemService {
     static native int nativeCloseHal();
     static native void nativeInit(MessageQueue queue, FingerprintService service);
     static native long nativeGetAuthenticatorId();
+    static native int nativeSetActiveGroup(int gid, byte[] storePath);
 
     static final class FpHalMsg {
         int type; // Type of the message. One of the constants in fingerprint.h
@@ -628,6 +632,11 @@ public class FingerprintService extends SystemService {
     public void onStart() {
         publishBinderService(Context.FINGERPRINT_SERVICE, new FingerprintServiceWrapper());
         mHalDeviceId = nativeOpenHal();
+        if (mHalDeviceId != 0) {
+            int userId = ActivityManager.getCurrentUser();
+            File path = Environment.getUserSystemDirectory(userId);
+            nativeSetActiveGroup(0, path.getAbsolutePath().getBytes());
+        }
         if (DEBUG) Slog.v(TAG, "Fingerprint HAL id: " + mHalDeviceId);
     }
 
diff --git a/services/core/jni/com_android_server_fingerprint_FingerprintService.cpp b/services/core/jni/com_android_server_fingerprint_FingerprintService.cpp
index 7dbfaf6..39474ec 100644
--- a/services/core/jni/com_android_server_fingerprint_FingerprintService.cpp
+++ b/services/core/jni/com_android_server_fingerprint_FingerprintService.cpp
@@ -181,6 +181,21 @@ static jlong nativeGetAuthenticatorId(JNIEnv *, jobject clazz) {
     return gContext.device->get_authenticator_id(gContext.device);
 }
 
+static jint nativeSetActiveGroup(JNIEnv *env, jobject clazz, jint gid, jbyteArray path) {
+    const int pathSize = env->GetArrayLength(path);
+    jbyte* pathData = env->GetByteArrayElements(path, 0);
+    if (pathSize >= PATH_MAX) {
+	ALOGE("Path name is too long\n");
+        return -1;
+    }
+    char path_name[PATH_MAX] = {0};
+    memcpy(path_name, pathData, pathSize);
+    ALOG(LOG_VERBOSE, LOG_TAG, "nativeSetActiveGroup() path: %s, gid: %d\n", path_name, gid);
+    int result = gContext.device->set_active_group(gContext.device, gid, path_name);
+    env->ReleaseByteArrayElements(path, pathData, 0);
+    return result;
+}
+
 static jint nativeOpenHal(JNIEnv* env, jobject clazz) {
     ALOG(LOG_VERBOSE, LOG_TAG, "nativeOpenHal()\n");
     int err;
@@ -242,6 +257,7 @@ static const JNINativeMethod g_methods[] = {
     { "nativeAuthenticate", "(JI)I", (void*)nativeAuthenticate },
     { "nativeStopAuthentication", "()I", (void*)nativeStopAuthentication },
     { "nativeEnroll", "([BII)I", (void*)nativeEnroll },
+    { "nativeSetActiveGroup", "(I[B)I", (void*)nativeSetActiveGroup },
     { "nativePreEnroll", "()J", (void*)nativePreEnroll },
     { "nativeStopEnrollment", "()I", (void*)nativeStopEnrollment },
     { "nativeRemove", "(II)I", (void*)nativeRemove },