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package org.bouncycastle.crypto.tls.test;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketTimeoutException;
import java.security.SecureRandom;
import org.bouncycastle.crypto.tls.DTLSServerProtocol;
import org.bouncycastle.crypto.tls.DTLSTransport;
import org.bouncycastle.crypto.tls.DatagramTransport;
import org.bouncycastle.crypto.tls.UDPTransport;
/**
* A simple test designed to conduct a DTLS handshake with an external DTLS client.
* <p>
* Please refer to GnuTLSSetup.html or OpenSSLSetup.html (under 'docs'), and x509-*.pem files in
* this package (under 'src/test/resources') for help configuring an external DTLS client.
* </p>
*/
public class DTLSServerTest
{
public static void main(String[] args)
throws Exception
{
int port = 5556;
int mtu = 1500;
SecureRandom secureRandom = new SecureRandom();
DTLSServerProtocol serverProtocol = new DTLSServerProtocol(secureRandom);
byte[] data = new byte[mtu];
DatagramPacket packet = new DatagramPacket(data, mtu);
DatagramSocket socket = new DatagramSocket(port);
socket.receive(packet);
System.out.println("Accepting connection from " + packet.getAddress().getHostAddress() + ":" + port);
socket.connect(packet.getAddress(), packet.getPort());
/*
* NOTE: For simplicity, and since we don't yet have HelloVerifyRequest support, we just
* discard the initial packet, which the client should re-send anyway.
*/
DatagramTransport transport = new UDPTransport(socket, mtu);
// Uncomment to see packets
// transport = new LoggingDatagramTransport(transport, System.out);
MockDTLSServer server = new MockDTLSServer();
DTLSTransport dtlsServer = serverProtocol.accept(server, transport);
byte[] buf = new byte[dtlsServer.getReceiveLimit()];
while (!socket.isClosed())
{
try
{
int length = dtlsServer.receive(buf, 0, buf.length, 60000);
if (length >= 0)
{
System.out.write(buf, 0, length);
dtlsServer.send(buf, 0, length);
}
}
catch (SocketTimeoutException ste)
{
}
}
dtlsServer.close();
}
}
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