/*
* Copyright (c) 2014, 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.
*/
/* @test
* @bug 8034181
* @summary SIGBUS in SctpChannelImpl receive
* @author chegar
*/
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.io.IOException;
import java.nio.ByteBuffer;
import com.sun.nio.sctp.AbstractNotificationHandler;
import com.sun.nio.sctp.AssociationChangeNotification;
import com.sun.nio.sctp.AssociationChangeNotification.AssocChangeEvent;
import com.sun.nio.sctp.HandlerResult;
import com.sun.nio.sctp.MessageInfo;
import com.sun.nio.sctp.Notification;
import com.sun.nio.sctp.PeerAddressChangeNotification;
import com.sun.nio.sctp.SctpChannel;
import com.sun.nio.sctp.SctpServerChannel;
import com.sun.nio.sctp.ShutdownNotification;
import static java.lang.System.out;
import static java.lang.System.err;
import static java.nio.charset.StandardCharsets.US_ASCII;
public class ReceiveIntoDirect {
/* suitably small message to NOT overrun small buffers */
final byte[] msgBytes = "Hello".getBytes(US_ASCII);
/* number of client connections/combinations (accepted by the server) */
final int NUM_CONNECTIONS = 75;
void test(String[] args) throws IOException {
SocketAddress address = null;
Server server;
if (!Util.isSCTPSupported()) {
out.println("SCTP protocol is not supported");
out.println("Test cannot be run");
return;
}
if (args.length == 2) {
/* requested to connecct to a specific address */
try {
int port = Integer.valueOf(args[1]);
address = new InetSocketAddress(args[0], port);
} catch (NumberFormatException nfe) {
err.println(nfe);
}
} else {
/* start server on local machine, default */
server = new Server();
server.start();
address = server.address();
debug("Server started and listening on " + address);
}
/* many combinations with varing buffer sizes, and offsets */
runWithManyOffsets(address, 20);
runWithManyOffsets(address, 49);
runWithManyOffsets(address, 50);
runWithManyOffsets(address, 51);
runWithManyOffsets(address, 1024);
}
void runWithManyOffsets(SocketAddress addr, int bufferSize)
throws IOException
{
doTest(addr, bufferSize, 1);
doTest(addr, bufferSize, 2);
doTest(addr, bufferSize, 3);
doTest(addr, bufferSize, 4);
doTest(addr, bufferSize, 5);
doTest(addr, bufferSize, 6);
doTest(addr, bufferSize, 7);
doTest(addr, bufferSize, 8);
doTest(addr, bufferSize, 9);
doTest(addr, bufferSize, 10);
doTest(addr, bufferSize, 11);
doTest(addr, bufferSize, 12);
doTest(addr, bufferSize, 13);
doTest(addr, bufferSize, 14);
doTest(addr, bufferSize, 15);
}
void doTest(SocketAddress peerAddress, int bufferSize, int bufferOffset)
throws IOException
{
debug("\n\nTesting with bufferSize " + bufferSize + " and offset " + bufferOffset);
assert bufferOffset + msgBytes.length <= bufferSize :
"buffer offset + message length greater than buffer size ";
ByteBuffer buffer = ByteBuffer.allocateDirect(bufferSize);
MessageInfo info;
try (SctpChannel channel = SctpChannel.open()) {
channel.connect(peerAddress);
ReceiveNotificationHandler handler =
new ReceiveNotificationHandler();
/* TEST 1: Assoc/peer change notif into direct buffer with offest */
do {
debug("Test 1: Assoc/peer change with offset " + bufferOffset);
buffer.position(bufferOffset);
info = channel.receive(buffer, null, handler);
if (info == null) {
fail("unexpected null from receive");
return;
}
} while (!info.isComplete());
buffer.flip().position(bufferOffset);
check(handler.receivedCommUp(), "SCTP_COMM_UP not received");
check(info != null, "info is null");
check(info.address() != null, "address is null");
check(info.association() != null, "association is null");
check(info.isComplete(), "message is not complete");
check(info.isUnordered() != true,
"message should not be unordered");
check(info.streamNumber() >= 0, "invalid stream number");
check(info.bytes() == msgBytes.length,
"bytes received not equal to message length");
check(info.bytes() == buffer.remaining(), "bytes != remaining");
check(Util.compare(buffer, msgBytes),
"received message not the same as sent message");
/* TEST 2: shutdown notification with offset */
debug("Test 2: shutdown notif with offset " + bufferOffset);
buffer.clear().position(bufferOffset);
while ((info = channel.receive(buffer, null, handler )) != null &&
info.bytes() != -1 );
}
}
class Server implements Runnable
{
private final InetSocketAddress serverAddr;
private final SctpServerChannel ssc;
public Server() throws IOException {
ssc = SctpServerChannel.open().bind(null);
java.util.Set<SocketAddress> addrs = ssc.getAllLocalAddresses();
if (addrs.isEmpty())
debug("addrs should not be empty");
serverAddr = (InetSocketAddress) addrs.iterator().next();
}
public void start() {
(new Thread(this, "Server-" + serverAddr.getPort())).start();
}
public InetSocketAddress address() {
return serverAddr;
}
@Override
public void run() {
try {
for (int i=0; i<NUM_CONNECTIONS; i++) {
SctpChannel sc = ssc.accept();
/* send a small message */
MessageInfo info = MessageInfo.createOutgoing(null, 0);
ByteBuffer buf = ByteBuffer.allocateDirect(Util.SMALL_BUFFER);
buf.put(msgBytes);
buf.flip();
debug("sending small message: " + buf);
sc.send(buf, info);
sc.shutdown();
sc.close();
}
} catch (IOException x) {
unexpected(x);
} finally {
try { ssc.close(); }
catch (IOException x) { unexpected(x); }
}
}
}
class ReceiveNotificationHandler extends AbstractNotificationHandler<Object>
{
boolean receivedCommUp; // false
public ReceiveNotificationHandler() { }
public boolean receivedCommUp() {
return receivedCommUp;
}
@Override
public HandlerResult handleNotification(
Notification notification, Object attachment) {
fail("Unknown notification type");
return HandlerResult.CONTINUE;
}
@Override
public HandlerResult handleNotification(
AssociationChangeNotification notification, Object attachment) {
AssocChangeEvent event = notification.event();
debug("AssociationChangeNotification");
debug(" Association: " + notification.association());
debug(" Event: " + event);
if (event.equals(AssocChangeEvent.COMM_UP))
receivedCommUp = true;
return HandlerResult.CONTINUE;
}
@Override
public HandlerResult handleNotification(
PeerAddressChangeNotification pacn, Object unused)
{
debug("PeerAddressChangeNotification: " + pacn);
return HandlerResult.CONTINUE;
}
@Override
public HandlerResult handleNotification(
ShutdownNotification notification, Object attachment) {
debug("ShutdownNotification");
debug(" Association: " + notification.association());
return HandlerResult.CONTINUE;
}
}
//--------------------- Infrastructure ---------------------------
boolean debug = true;
volatile int passed = 0, failed = 0;
void pass() {passed++;}
void fail() {failed++; Thread.dumpStack();}
void fail(String msg) {System.err.println(msg); fail();}
void unexpected(Throwable t) {failed++; t.printStackTrace();}
void check(boolean cond) {if (cond) pass(); else fail();}
void check(boolean cond, String failMessage) {if (cond) pass(); else fail(failMessage);}
void debug(String message) {if(debug) {
System.out.println(Thread.currentThread() + " " + message); } }
public static void main(String[] args) throws Throwable {
Class<?> k = new Object(){}.getClass().getEnclosingClass();
try {k.getMethod("instanceMain",String[].class)
.invoke( k.newInstance(), (Object) args);}
catch (Throwable e) {throw e.getCause();}}
public void instanceMain(String[] args) throws Throwable {
try {test(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
}