290 lines
11 KiB
Java
290 lines
11 KiB
Java
/*
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* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 4927640
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* @summary Tests the SCTP protocol implementation
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* @author chegar
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*/
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import java.net.InetSocketAddress;
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import java.net.SocketAddress;
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import java.io.IOException;
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import java.util.Set;
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import java.util.Iterator;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import java.nio.ByteBuffer;
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import com.sun.nio.sctp.AbstractNotificationHandler;
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import com.sun.nio.sctp.Association;
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import com.sun.nio.sctp.AssociationChangeNotification;
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import com.sun.nio.sctp.AssociationChangeNotification.AssocChangeEvent;
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import com.sun.nio.sctp.HandlerResult;
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import com.sun.nio.sctp.InvalidStreamException;
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import com.sun.nio.sctp.MessageInfo;
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import com.sun.nio.sctp.SctpChannel;
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import com.sun.nio.sctp.SctpMultiChannel;
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import com.sun.nio.sctp.ShutdownNotification;
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import static java.lang.System.out;
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import static java.lang.System.err;
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public class Branch {
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/* Latches used to synchronize between the client and server so that
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* connections without any IO may not be closed without being accepted */
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final CountDownLatch clientFinishedLatch = new CountDownLatch(1);
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final CountDownLatch serverFinishedLatch = new CountDownLatch(1);
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void test(String[] args) {
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SocketAddress address = null;
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Server server = null;
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if (!Util.isSCTPSupported()) {
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out.println("SCTP protocol is not supported");
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out.println("Test cannot be run");
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return;
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}
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if (args.length == 2) {
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/* requested to connecct to a specific address */
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try {
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int port = Integer.valueOf(args[1]);
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address = new InetSocketAddress(args[0], port);
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} catch (NumberFormatException nfe) {
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err.println(nfe);
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}
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} else {
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/* start server on local machine, default */
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try {
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server = new Server();
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server.start();
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address = server.address();
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debug("Server started and listening on " + address);
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} catch (IOException ioe) {
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ioe.printStackTrace();
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return;
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}
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}
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doTest(address);
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}
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void doTest(SocketAddress peerAddress) {
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SctpMultiChannel channel = null;
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ByteBuffer buffer = ByteBuffer.allocate(Util.LARGE_BUFFER);
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MessageInfo info = MessageInfo.createOutgoing(null, 0);
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try {
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channel = SctpMultiChannel.open();
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/* setup an association implicitly by sending a small message */
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int streamNumber = 0;
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debug("sending to " + peerAddress + " on stream number: " + streamNumber);
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info = MessageInfo.createOutgoing(peerAddress, streamNumber);
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buffer.put(Util.SMALL_MESSAGE.getBytes("ISO-8859-1"));
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buffer.flip();
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int position = buffer.position();
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int remaining = buffer.remaining();
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debug("sending small message: " + buffer);
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int sent = channel.send(buffer, info);
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check(sent == remaining, "sent should be equal to remaining");
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check(buffer.position() == (position + sent),
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"buffers position should have been incremented by sent");
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/* Receive the COMM_UP */
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buffer.clear();
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BranchNotificationHandler handler = new BranchNotificationHandler();
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info = channel.receive(buffer, null, handler);
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check(handler.receivedCommUp(), "COMM_UP no received");
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Set<Association> associations = channel.associations();
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check(!associations.isEmpty(),"There should be some associations");
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Association bassoc = associations.iterator().next();
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/* TEST 1: branch */
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SctpChannel bchannel = channel.branch(bassoc);
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check(!bchannel.getAllLocalAddresses().isEmpty(),
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"branched channel should be bound");
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check(!bchannel.getRemoteAddresses().isEmpty(),
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"branched channel should be connected");
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check(channel.associations().isEmpty(),
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"there should be no associations since the only one was branched off");
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buffer.clear();
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info = bchannel.receive(buffer, null, null);
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buffer.flip();
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check(info != null, "info is null");
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check(info.streamNumber() == streamNumber,
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"message not sent on the correct stream");
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check(info.bytes() == Util.SMALL_MESSAGE.getBytes("ISO-8859-1").
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length, "bytes received not equal to message length");
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check(info.bytes() == buffer.remaining(), "bytes != remaining");
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check(Util.compare(buffer, Util.SMALL_MESSAGE),
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"received message not the same as sent message");
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} catch (IOException ioe) {
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unexpected(ioe);
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} finally {
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clientFinishedLatch.countDown();
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try { serverFinishedLatch.await(10L, TimeUnit.SECONDS); }
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catch (InterruptedException ie) { unexpected(ie); }
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if (channel != null) {
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try { channel.close(); }
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catch (IOException e) { unexpected (e);}
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}
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}
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}
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class Server implements Runnable
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{
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final InetSocketAddress serverAddr;
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private SctpMultiChannel serverChannel;
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public Server() throws IOException {
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serverChannel = SctpMultiChannel.open().bind(null);
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java.util.Set<SocketAddress> addrs = serverChannel.getAllLocalAddresses();
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if (addrs.isEmpty())
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debug("addrs should not be empty");
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serverAddr = (InetSocketAddress) addrs.iterator().next();
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}
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public void start() {
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(new Thread(this, "Server-" + serverAddr.getPort())).start();
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}
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public InetSocketAddress address() {
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return serverAddr;
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}
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@Override
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public void run() {
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ByteBuffer buffer = ByteBuffer.allocateDirect(Util.LARGE_BUFFER);
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try {
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MessageInfo info;
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/* receive a small message */
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do {
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info = serverChannel.receive(buffer, null, null);
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if (info == null) {
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fail("Server: unexpected null from receive");
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return;
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}
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} while (!info.isComplete());
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buffer.flip();
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check(info != null, "info is null");
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check(info.streamNumber() == 0,
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"message not sent on the correct stream");
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check(info.bytes() == Util.SMALL_MESSAGE.getBytes("ISO-8859-1").
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length, "bytes received not equal to message length");
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check(info.bytes() == buffer.remaining(), "bytes != remaining");
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check(Util.compare(buffer, Util.SMALL_MESSAGE),
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"received message not the same as sent message");
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check(info != null, "info is null");
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Set<Association> assocs = serverChannel.associations();
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check(assocs.size() == 1, "there should be only one association");
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/* echo the message */
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debug("Server: echoing first message");
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buffer.flip();
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MessageInfo sendInfo = MessageInfo.createOutgoing(info.association(), null, 0);
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int bytes = serverChannel.send(buffer, sendInfo);
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debug("Server: sent " + bytes + "bytes");
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clientFinishedLatch.await(10L, TimeUnit.SECONDS);
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serverFinishedLatch.countDown();
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} catch (IOException ioe) {
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unexpected(ioe);
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} catch (InterruptedException ie) {
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unexpected(ie);
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} finally {
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try { if (serverChannel != null) serverChannel.close(); }
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catch (IOException unused) {}
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}
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}
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}
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class BranchNotificationHandler extends AbstractNotificationHandler<Object>
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{
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boolean receivedCommUp; // false
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boolean receivedCommUp() {
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return receivedCommUp;
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}
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@Override
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public HandlerResult handleNotification(
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AssociationChangeNotification notification, Object attachment) {
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AssocChangeEvent event = notification.event();
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debug("AssociationChangeNotification");
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debug(" Association: " + notification.association());
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debug(" Event: " + event);
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if (event.equals(AssocChangeEvent.COMM_UP))
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receivedCommUp = true;
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return HandlerResult.RETURN;
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}
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/* A ShutdownNotification handler is provided to ensure that no
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* shutdown notification are being handled since we don't expect
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* to receive them. This is not part of branch testing, it just
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* fits here to test another bug. */
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@Override
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public HandlerResult handleNotification(
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ShutdownNotification notification, Object attachment) {
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debug("ShutdownNotification");
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debug(" Association: " + notification.association());
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fail("Shutdown should not be received");
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return HandlerResult.RETURN;
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}
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}
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//--------------------- Infrastructure ---------------------------
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boolean debug = true;
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volatile int passed = 0, failed = 0;
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void pass() {passed++;}
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void fail() {failed++; Thread.dumpStack();}
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void fail(String msg) {System.err.println(msg); fail();}
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void unexpected(Throwable t) {failed++; t.printStackTrace();}
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void check(boolean cond) {if (cond) pass(); else fail();}
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void check(boolean cond, String failMessage) {if (cond) pass(); else fail(failMessage);}
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void debug(String message) {if(debug) { System.out.println(message); } }
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public static void main(String[] args) throws Throwable {
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Class<?> k = new Object(){}.getClass().getEnclosingClass();
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try {k.getMethod("instanceMain",String[].class)
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.invoke( k.newInstance(), (Object) args);}
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catch (Throwable e) {throw e.getCause();}}
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public void instanceMain(String[] args) throws Throwable {
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try {test(args);} catch (Throwable t) {unexpected(t);}
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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}
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