undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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/*
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* Copyright (c) 2008, 2018, 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 4607272 6842687
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* @summary Unit test for AsynchronousServerSocketChannel
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* @modules jdk.net
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* @run main/timeout=180 Basic
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*/
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import java.nio.channels.*;
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import java.net.*;
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import static java.net.StandardSocketOptions.*;
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import java.io.IOException;
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import java.util.List;
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import java.util.Set;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.Future;
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import java.util.concurrent.atomic.AtomicReference;
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import static jdk.net.ExtendedSocketOptions.TCP_KEEPCOUNT;
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import static jdk.net.ExtendedSocketOptions.TCP_KEEPIDLE;
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import static jdk.net.ExtendedSocketOptions.TCP_KEEPINTERVAL;
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public class Basic {
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public static void main(String[] args) throws Exception {
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testBind();
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testAccept();
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testSocketOptions();
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}
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static void testBind() throws Exception {
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System.out.println("-- bind --");
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AsynchronousServerSocketChannel ch = AsynchronousServerSocketChannel.open();
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if (ch.getLocalAddress() != null)
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throw new RuntimeException("Local address should be 'null'");
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ch.bind(new InetSocketAddress(0), 20);
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// check local address after binding
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InetSocketAddress local = (InetSocketAddress)ch.getLocalAddress();
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if (local.getPort() == 0)
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throw new RuntimeException("Unexpected port");
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if (!local.getAddress().isAnyLocalAddress())
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throw new RuntimeException("Not bound to a wildcard address");
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// try to re-bind
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try {
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ch.bind(new InetSocketAddress(0));
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throw new RuntimeException("AlreadyBoundException expected");
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} catch (AlreadyBoundException x) {
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}
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ch.close();
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// check ClosedChannelException
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ch = AsynchronousServerSocketChannel.open();
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ch.close();
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try {
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ch.bind(new InetSocketAddress(0));
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throw new RuntimeException("ClosedChannelException expected");
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} catch (ClosedChannelException x) {
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}
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}
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static void testAccept() throws Exception {
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System.out.println("-- accept --");
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final AsynchronousServerSocketChannel listener =
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AsynchronousServerSocketChannel.open().bind(new InetSocketAddress(0));
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InetAddress lh = InetAddress.getLocalHost();
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int port = ((InetSocketAddress)(listener.getLocalAddress())).getPort();
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final InetSocketAddress isa = new InetSocketAddress(lh, port);
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// establish a few loopback connections
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for (int i=0; i<100; i++) {
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SocketChannel sc = SocketChannel.open(isa);
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AsynchronousSocketChannel ch = listener.accept().get();
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sc.close();
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ch.close();
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}
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final AtomicReference<Throwable> exception = new AtomicReference<Throwable>();
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// start accepting
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listener.accept((Void)null, new CompletionHandler<AsynchronousSocketChannel,Void>() {
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public void completed(AsynchronousSocketChannel ch, Void att) {
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try {
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ch.close();
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} catch (IOException ignore) { }
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}
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public void failed(Throwable exc, Void att) {
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exception.set(exc);
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}
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});
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// check AcceptPendingException
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try {
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listener.accept();
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throw new RuntimeException("AcceptPendingException expected");
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} catch (AcceptPendingException x) {
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}
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// asynchronous close
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listener.close();
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while (exception.get() == null)
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Thread.sleep(100);
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if (!(exception.get() instanceof AsynchronousCloseException))
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throw new RuntimeException("AsynchronousCloseException expected");
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// once closed when a further attemt should throw ClosedChannelException
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try {
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listener.accept().get();
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throw new RuntimeException("ExecutionException expected");
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} catch (ExecutionException x) {
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if (!(x.getCause() instanceof ClosedChannelException))
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throw new RuntimeException("Cause of ClosedChannelException expected");
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} catch (InterruptedException x) {
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}
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}
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static void testSocketOptions() throws Exception {
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System.out.println("-- socket options --");
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AsynchronousServerSocketChannel ch = AsynchronousServerSocketChannel.open();
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try {
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// check supported options
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Set<SocketOption<?>> options = ch.supportedOptions();
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boolean reuseport = options.contains(SO_REUSEPORT);
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if (!options.contains(SO_REUSEADDR))
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throw new RuntimeException("SO_REUSEADDR should be supported");
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if (!options.contains(SO_REUSEPORT) && reuseport)
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throw new RuntimeException("SO_REUSEPORT should be supported");
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if (!options.contains(SO_RCVBUF))
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throw new RuntimeException("SO_RCVBUF should be supported");
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// allowed to change when not bound
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ch.setOption(SO_RCVBUF, 256*1024); // can't check
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int before = ch.getOption(SO_RCVBUF);
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int after = ch.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF);
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if (after < before)
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throw new RuntimeException("setOption caused SO_RCVBUF to decrease");
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ch.setOption(SO_REUSEADDR, true);
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checkOption(ch, SO_REUSEADDR, true);
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ch.setOption(SO_REUSEADDR, false);
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checkOption(ch, SO_REUSEADDR, false);
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if (reuseport) {
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ch.setOption(SO_REUSEPORT, true);
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checkOption(ch, SO_REUSEPORT, true);
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ch.setOption(SO_REUSEPORT, false);
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checkOption(ch, SO_REUSEPORT, false);
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}
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List<? extends SocketOption> extOptions = List.of(TCP_KEEPCOUNT,
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TCP_KEEPIDLE, TCP_KEEPINTERVAL);
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if (options.containsAll(extOptions)) {
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ch.setOption(TCP_KEEPIDLE, 1234);
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checkOption(ch, TCP_KEEPIDLE, 1234);
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ch.setOption(TCP_KEEPINTERVAL, 123);
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checkOption(ch, TCP_KEEPINTERVAL, 123);
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ch.setOption(TCP_KEEPCOUNT, 7);
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checkOption(ch, TCP_KEEPCOUNT, 7);
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}
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} finally {
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ch.close();
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}
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}
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static void checkOption(AsynchronousServerSocketChannel ch,
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SocketOption name, Object expectedValue)
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throws IOException
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{
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Object value = ch.getOption(name);
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if (!value.equals(expectedValue))
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throw new RuntimeException("value not as expected");
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}
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}
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