1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 8043758

    27  * @summary Testing DTLS incorrect app data packages unwrapping.

    28  * @key randomness

    29  * @library /sun/security/krb5/auto /lib/testlibrary /javax/net/ssl/TLSCommon

    30  * @run main/othervm -Dtest.security.protocol=DTLS

    31  *      -Dtest.mode=norm DTLSIncorrectAppDataTest

    32  * @run main/othervm -Dtest.security.protocol=DTLS

    33  *      -Dtest.mode=norm_sni DTLSIncorrectAppDataTest

    34  * @run main/othervm -Dtest.security.protocol=DTLS

    35  *      -Dtest.mode=krb DTLSIncorrectAppDataTest

    36  */

    37 

    38 import java.nio.ByteBuffer;

    39 import javax.net.ssl.SSLContext;

    40 import javax.net.ssl.SSLEngine;

    41 import javax.net.ssl.SSLEngineResult;

    42 import javax.net.ssl.SSLException;

    43 import java.util.Random;

    44 import jdk.testlibrary.RandomFactory;

    45 

    46 /**

    47  * Testing DTLS incorrect app data packages unwrapping. Incorrect application

    48  * data packages should be ignored by DTLS SSLEngine.

    49  */

    50 public class DTLSIncorrectAppDataTest extends SSLEngineTestCase {

    51 

    52     private final String MESSAGE = "Hello peer!";

    53 

    54     public static void main(String[] s) {

    55         DTLSIncorrectAppDataTest test = new DTLSIncorrectAppDataTest();

    56         setUpAndStartKDCIfNeeded();

    57         test.runTests();

    58     }

    59 

    60     @Override

    61     protected void testOneCipher(String cipher) {

    62         SSLContext context = getContext();

    63         int maxPacketSize = getMaxPacketSize();

    64         boolean useSNI = !TEST_MODE.equals("norm");

    65         SSLEngine clientEngine = getClientSSLEngine(context, useSNI);

    66         SSLEngine serverEngine = getServerSSLEngine(context, useSNI);

    67         clientEngine.setEnabledCipherSuites(new String[]{cipher});

    68         serverEngine.setEnabledCipherSuites(new String[]{cipher});

    69         serverEngine.setNeedClientAuth(!cipher.contains("anon"));

    70         try {

    71             doHandshake(clientEngine, serverEngine, maxPacketSize,

    72                     HandshakeMode.INITIAL_HANDSHAKE);

    73             checkIncorrectAppDataUnwrap(clientEngine, serverEngine);

    74             checkIncorrectAppDataUnwrap(serverEngine, clientEngine);

    75         } catch (SSLException ssle) {

    76             throw new AssertionError("Error during handshake or sending app data",

    77                     ssle);

    78         }

    79     }

    80 

    81     private void checkIncorrectAppDataUnwrap(SSLEngine sendEngine,

    82             SSLEngine recvEngine) throws SSLException {

    83         String direction = sendEngine.getUseClientMode() ? "client"

    84                 : "server";

    85         System.out.println("================================================="

    86                 + "===========");

    87         System.out.println("Testing DTLS incorrect app data packages unwrapping"

    88                 + " by sending data from " + direction);

    89         ByteBuffer app = ByteBuffer.wrap(MESSAGE.getBytes());

    90         ByteBuffer net = doWrap(sendEngine, direction, 0, app);

    91         final Random RNG = RandomFactory.getRandom();

    92         int randomPlace = RNG.nextInt(net.remaining());

    93         net.array()[randomPlace] += 1;

    94         app = ByteBuffer.allocate(recvEngine.getSession()

    95                 .getApplicationBufferSize());

    96         recvEngine.unwrap(net, app);

    97         app.flip();

    98         int length = app.remaining();

    99         System.out.println("Unwrapped " + length + " bytes.");

   100     }

   101 }