1 /* 2 * Copyright (C) 2018 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 package android.seccomp.cts.app; 17 18 import android.app.Service; 19 import android.content.Intent; 20 import android.os.Handler; 21 import android.os.IBinder; 22 import android.os.Message; 23 import android.os.Messenger; 24 import android.os.RemoteException; 25 import android.util.Log; 26 27 public class IsolatedService extends Service { 28 static final String TAG = "IsolatedService"; 29 30 static final int MSG_GET_SECCOMP_RESULT = 1; 31 32 static final int MSG_SECCOMP_RESULT = 2; 33 final Messenger mMessenger = new Messenger(new ServiceHandler()); 34 35 @Override onBind(Intent intent)36 public IBinder onBind(Intent intent) { 37 return mMessenger.getBinder(); 38 } 39 40 static class ServiceHandler extends Handler { 41 @Override handleMessage(Message msg)42 public void handleMessage(Message msg) { 43 switch (msg.what) { 44 case (MSG_GET_SECCOMP_RESULT): 45 int result = ZygotePreload.getSeccomptestResult() ? 1 : 0; 46 try { 47 msg.replyTo.send(Message.obtain(null, MSG_SECCOMP_RESULT, result, 0)); 48 } catch (RemoteException e) { 49 Log.e(TAG, "Failed to send seccomp test result", e); 50 } 51 break; 52 default: 53 super.handleMessage(msg); 54 } 55 } 56 } 57 } 58