1 /* 2 * Copyright 2013 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 android.security.cts; 18 19 import android.platform.test.annotations.SecurityTest; 20 21 import junit.framework.TestCase; 22 23 import java.io.IOException; 24 25 @SecurityTest 26 public class LinuxRngTest extends TestCase { 27 static { 28 System.loadLibrary("ctssecurity_jni"); 29 } 30 31 public void testDevRandomMajorMinor() throws Exception { 32 // Based on Linux kernel's drivers/char/random.c 33 assertEquals("/dev/random major", 1, getCharDeviceMajor("/dev/random")); 34 assertEquals("/dev/random minor", 8, getCharDeviceMinor("/dev/random")); 35 } 36 37 public void testDevUrandomMajorMinor() throws Exception { 38 // Based on Linux kernel's drivers/char/random.c 39 assertEquals("/dev/urandom major", 1, getCharDeviceMajor("/dev/urandom")); 40 assertEquals("/dev/urandom minor", 9, getCharDeviceMinor("/dev/urandom")); 41 } 42 43 public static native int getCharDeviceMajor(String file) throws IOException; 44 public static native int getCharDeviceMinor(String file) throws IOException; 45 } 46