275 lines
12 KiB
Java
275 lines
12 KiB
Java
/*
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* Copyright (c) 2019, 2024, 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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import com.sun.jdi.Bootstrap;
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import com.sun.jdi.VirtualMachine;
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import com.sun.jdi.connect.AttachingConnector;
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import com.sun.jdi.connect.Connector;
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import com.sun.jdi.connect.IllegalConnectorArgumentsException;
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import lib.jdb.Debuggee;
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import java.io.IOException;
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import java.net.Inet4Address;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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/*
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* @test
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* @bug 8184770 8313804
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* @summary Tests that JDWP agent honors jdk net properties
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* @library /test/lib
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*
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* @build HelloWorld JdwpNetProps
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* @run main/othervm -Djava.net.preferIPv6Addresses=system JdwpNetProps
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*/
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public class JdwpNetProps {
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// Set to true to allow testing of attach from wrong address (expected to fail).
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// It's off by default as it causes test interference (see JDK-8311990).
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private static boolean allowNegativeAttachTesting =
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"true".equalsIgnoreCase(System.getProperty("jdk.jdi.allowNegativeTesting"));
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public static void main(String[] args) throws Exception {
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InetAddress addrs[] = InetAddress.getAllByName("localhost");
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InetAddress ipv4Address = null;
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InetAddress ipv6Address = null;
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for (int i = 0; i < addrs.length; i++) {
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if (addrs[i] instanceof Inet4Address) {
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ipv4Address = addrs[i];
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} else if (addrs[i] instanceof Inet6Address) {
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ipv6Address = addrs[i];
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}
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}
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String preferIPv6Address = System.getProperty("java.net.preferIPv6Addresses");
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if (!Objects.equals(preferIPv6Address, "system")) {
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throw new AssertionError(
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"Expected -Djava.net.preferIPv6Address=system, was " + preferIPv6Address);
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}
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boolean systemPrefersIPv6 = addrs[0] instanceof Inet6Address;
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if (ipv4Address != null) {
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new ListenTest("localhost", ipv4Address)
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.preferIPv4Stack(true)
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.run(TestResult.Success);
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new ListenTest("localhost", ipv4Address)
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.preferIPv4Stack(true)
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.preferIPv6Addresses("true")
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.run(TestResult.Success);
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new ListenTest("localhost", ipv4Address)
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.preferIPv4Stack(true)
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.preferIPv6Addresses("system")
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.run(TestResult.Success);
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new ListenTest("localhost", ipv4Address)
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.preferIPv4Stack(false)
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.run(TestResult.Success);
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if (ipv6Address != null) {
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// - only IPv4, so connection from IPv6 should fail
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new ListenTest("localhost", ipv6Address)
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.preferIPv4Stack(true)
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.preferIPv6Addresses("true")
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.run(TestResult.AttachFailed);
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new ListenTest("localhost", ipv6Address)
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.preferIPv4Stack(true)
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.preferIPv6Addresses("system")
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.run(TestResult.AttachFailed);
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// - listen on IPv4
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new ListenTest("localhost", ipv6Address)
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.preferIPv6Addresses("false")
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.run(TestResult.AttachFailed);
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// - listen on IPv4 (preferIPv6Addresses defaults to false)
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new ListenTest("localhost", ipv6Address)
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.run(TestResult.AttachFailed);
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// - listen on IPv6
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new ListenTest("localhost", ipv6Address)
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.preferIPv6Addresses("true")
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.run(TestResult.Success);
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new ListenTest("localhost", ipv6Address)
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.preferIPv6Addresses("system")
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.run(systemPrefersIPv6 ? TestResult.Success : TestResult.AttachFailed);
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// - listen on IPv6, connect from IPv4
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new ListenTest("localhost", ipv4Address)
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.preferIPv4Stack(false)
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.preferIPv6Addresses("true")
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.run(TestResult.AttachFailed);
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// - listen on system preference, connect from IPv4
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new ListenTest("localhost", ipv4Address)
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.preferIPv4Stack(false)
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.preferIPv6Addresses("system")
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.run(systemPrefersIPv6 ? TestResult.AttachFailed : TestResult.Success);
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}
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} else {
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if (!systemPrefersIPv6) {
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throw new AssertionError("The system is IPv6-only, but systemPrefersIPv6 was unexpectedly false");
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}
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// IPv6-only system - expected to fail on IPv4 address
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new ListenTest("localhost", ipv6Address)
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.preferIPv4Stack(true)
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.run(TestResult.ListenFailed);
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new ListenTest("localhost", ipv6Address)
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.preferIPv4Stack(true)
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.preferIPv6Addresses("system")
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.run(TestResult.ListenFailed);
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new ListenTest("localhost", ipv6Address)
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.preferIPv4Stack(true)
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.preferIPv6Addresses("true")
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.run(TestResult.ListenFailed);
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new ListenTest("localhost", ipv6Address)
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.run(TestResult.Success);
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new ListenTest("localhost", ipv6Address)
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.preferIPv6Addresses("system")
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.run(TestResult.Success);
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new ListenTest("localhost", ipv6Address)
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.preferIPv6Addresses("true")
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.run(TestResult.Success);
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}
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}
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private enum TestResult {
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Success,
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ListenFailed,
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AttachFailed
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}
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private static class ListenTest {
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private final String listenAddress;
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private final InetAddress connectAddress;
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private Boolean preferIPv4Stack;
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private String preferIPv6Addresses;
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public ListenTest(String listenAddress, InetAddress connectAddress) {
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this.listenAddress = listenAddress;
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this.connectAddress = connectAddress;
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}
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public ListenTest preferIPv4Stack(Boolean value) {
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preferIPv4Stack = value;
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return this;
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}
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public ListenTest preferIPv6Addresses(String value) {
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preferIPv6Addresses = value;
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return this;
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}
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public void run(TestResult expectedResult) throws Exception {
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log("\nTest: listen at " + listenAddress + ", attaching to " + connectAddress
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+ ", preferIPv4Stack = " + preferIPv4Stack
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+ ", preferIPv6Addresses = " + preferIPv6Addresses
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+ ", expectedResult = " + expectedResult);
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if (expectedResult == TestResult.AttachFailed && !allowNegativeAttachTesting) {
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log("SKIPPED: negative attach testing is disabled");
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return;
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}
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List<String> options = new LinkedList<>();
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if (preferIPv4Stack != null) {
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options.add("-Djava.net.preferIPv4Stack=" + preferIPv4Stack.toString());
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}
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if (preferIPv6Addresses != null) {
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options.add("-Djava.net.preferIPv6Addresses=" + preferIPv6Addresses);
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}
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log("Starting listening debuggee at " + listenAddress
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+ (expectedResult == TestResult.ListenFailed ? ": expected to fail" : ""));
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Exception error = null;
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try (Debuggee debuggee = Debuggee.launcher("HelloWorld")
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.setAddress(listenAddress + ":0")
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.addOptions(options).launch()) {
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log("Debuggee is listening on " + listenAddress + ":" + debuggee.getAddress());
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log("Connecting from " + connectAddress.getHostAddress()
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+ ", expected: " + (expectedResult == TestResult.Success ? "Success" : "Failure"));
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try {
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VirtualMachine vm = attach(connectAddress.getHostAddress(), debuggee.getAddress());
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vm.dispose();
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if (expectedResult == TestResult.Success) {
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log("Attached successfully (as expected)");
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} else {
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error = new RuntimeException("ERROR: attached successfully");
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}
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} catch (Exception ex) {
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if (expectedResult == TestResult.AttachFailed) {
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log("Attach failed (as expected)");
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} else {
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error = new RuntimeException("ERROR: failed to attach", ex);
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}
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}
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} catch (Exception ex) {
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if (expectedResult == TestResult.ListenFailed) {
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log("Listen failed (as expected)");
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} else {
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error = new RuntimeException("ERROR: listen failed", ex);
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}
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}
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if (error != null) {
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throw error;
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}
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}
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}
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private static String ATTACH_CONNECTOR = "com.sun.jdi.SocketAttach";
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// cache socket attaching connector
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private static AttachingConnector attachingConnector;
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private static VirtualMachine attach(String address, String port) throws IOException {
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if (attachingConnector == null) {
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attachingConnector = (AttachingConnector)getConnector(ATTACH_CONNECTOR);
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}
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Map<String, Connector.Argument> args = attachingConnector.defaultArguments();
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setConnectorArg(args, "hostname", address);
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setConnectorArg(args, "port", port);
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try {
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return attachingConnector.attach(args);
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} catch (IllegalConnectorArgumentsException e) {
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// unexpected.. wrap in RuntimeException
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throw new RuntimeException(e);
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}
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}
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private static Connector getConnector(String name) {
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List<Connector> connectors = Bootstrap.virtualMachineManager().allConnectors();
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for (Iterator<Connector> iter = connectors.iterator(); iter.hasNext(); ) {
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Connector connector = iter.next();
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if (connector.name().equalsIgnoreCase(name)) {
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return connector;
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}
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}
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throw new IllegalArgumentException("Connector " + name + " not found");
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}
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private static void setConnectorArg(Map<String, Connector.Argument> args, String name, String value) {
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Connector.Argument arg = args.get(name);
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if (arg == null) {
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throw new IllegalArgumentException("Argument " + name + " is not defined");
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}
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arg.setValue(value);
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}
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private static void log(Object o) {
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System.out.println(String.valueOf(o));
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}
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}
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