/*
* Copyright ( c ) 2015 , 2019 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
// SunJSSE does not support dynamic system properties, no way to re-use
// system properties in samevm/agentvm mode.
/*
* @ test
* @ bug 8043758
* @ summary Datagram Transport Layer Security ( DTLS )
* @ modules java . base / sun . security . util
* @ library / test / lib
* @ build DTLSOverDatagram
* @ run main / othervm Retransmission
*/
import java.util.List;
import java.util.ArrayList;
import java.net.DatagramPacket;
import java.net.SocketAddress;
import javax.net.ssl.SSLEngine;
/**
* Test that DTLS implementation is able to do retransmission internally
* automatically if packet get lost .
*/
public class Retransmission extends DTLSOverDatagram {
boolean needPacketLoss = true ;
public static void main(String[] args) throws Exception {
Retransmission testCase = new Retransmission();
testCase.runTest(testCase);
}
@Override
boolean produceHandshakePackets(SSLEngine engine, SocketAddress socketAddr,
String side, List<DatagramPacket> packets) throws Exception {
boolean finished = super .produceHandshakePackets(
engine, socketAddr, side, packets);
if (!needPacketLoss || (!engine.getUseClientMode())) {
return finished;
}
List<DatagramPacket> parts = new ArrayList<>();
int lostSeq = 2 ;
for (DatagramPacket packet : packets) {
lostSeq--;
if (lostSeq == 0 ) {
needPacketLoss = false ;
// loss this packet
System.out.println("Loss a packet" );
continue ;
}
parts.add(packet);
}
packets.clear();
packets.addAll(parts);
return finished;
}
}
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