--- a/jdk/src/share/classes/sun/security/validator/EndEntityChecker.java	Mon Mar 31 16:50:16 2008 -0700
+++ b/jdk/src/share/classes/sun/security/validator/EndEntityChecker.java	Wed Apr 02 22:44:45 2008 -0400
@@ -87,6 +87,9 @@
     // the Microsoft Server-Gated-Cryptography EKU extension OID
     private final static String OID_EKU_MS_SGC = "1.3.6.1.4.1.311.10.3.3";
 
+    // the recognized extension OIDs
+    private final static String OID_SUBJECT_ALT_NAME = "2.5.29.17";
+
     private final static String NSCT_SSL_CLIENT =
                                 NetscapeCertTypeExtension.SSL_CLIENT;
 
@@ -171,6 +174,13 @@
             throws CertificateException {
         // basic constraints irrelevant in EE certs
         exts.remove(SimpleValidator.OID_BASIC_CONSTRAINTS);
+
+        // If the subject field contains an empty sequence, the subjectAltName
+        // extension MUST be marked critical.
+        // We do not check the validity of the critical extension, just mark
+        // it recognizable here.
+        exts.remove(OID_SUBJECT_ALT_NAME);
+
         if (!exts.isEmpty()) {
             throw new CertificateException("Certificate contains unsupported "
                 + "critical extensions: " + exts);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/ssl/com/sun/net/ssl/internal/www/protocol/https/HttpsURLConnection/CriticalSubjectAltName.java	Wed Apr 02 22:44:45 2008 -0400
@@ -0,0 +1,262 @@
+/*
+ * Copyright 2001-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6668231
+ * @summary Presence of a critical subjectAltName causes JSSE's SunX509 to
+ *          fail trusted checks
+ * @author Xuelei Fan
+ *
+ * This test depends on binary keystore, crisubn.jks and trusted.jks. Because
+ * JAVA keytool cannot generate X509 certificate with SubjectAltName extension,
+ * the certificates are generated with openssl toolkits and then imported into
+ * JAVA keystore.
+ *
+ * The crisubn.jks holds a private key entry and the corresponding X509
+ * certificate issued with an empty Subject field, and a critical
+ * SubjectAltName extension.
+ *
+ * The trusted.jks holds the trusted certificate.
+ */
+import java.io.*;
+import java.net.*;
+import javax.net.ssl.*;
+import java.security.cert.Certificate;
+
+public class CriticalSubjectAltName implements HostnameVerifier {
+    /*
+     * =============================================================
+     * Set the various variables needed for the tests, then
+     * specify what tests to run on each side.
+     */
+
+    /*
+     * Should we run the client or server in a separate thread?
+     * Both sides can throw exceptions, but do you have a preference
+     * as to which side should be the main thread.
+     */
+    static boolean separateServerThread = true;
+
+    /*
+     * Where do we find the keystores?
+     */
+    static String pathToStores = "./";
+    static String keyStoreFile = "crisubn.jks";
+    static String trustStoreFile = "trusted.jks";
+    static String passwd = "passphrase";
+
+    /*
+     * Is the server ready to serve?
+     */
+    volatile static boolean serverReady = false;
+
+    /*
+     * Turn on SSL debugging?
+     */
+    static boolean debug = false;
+
+    /*
+     * If the client or server is doing some kind of object creation
+     * that the other side depends on, and that thread prematurely
+     * exits, you may experience a hang.  The test harness will
+     * terminate all hung threads after its timeout has expired,
+     * currently 3 minutes by default, but you might try to be
+     * smart about it....
+     */
+
+    /*
+     * Define the server side of the test.
+     *
+     * If the server prematurely exits, serverReady will be set to true
+     * to avoid infinite hangs.
+     */
+    void doServerSide() throws Exception {
+        SSLServerSocketFactory sslssf =
+            (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
+        SSLServerSocket sslServerSocket =
+            (SSLServerSocket) sslssf.createServerSocket(serverPort);
+        serverPort = sslServerSocket.getLocalPort();
+
+        /*
+         * Signal Client, we're ready for his connect.
+         */
+        serverReady = true;
+
+        SSLSocket sslSocket = (SSLSocket) sslServerSocket.accept();
+        OutputStream sslOS = sslSocket.getOutputStream();
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(sslOS));
+        bw.write("HTTP/1.1 200 OK\r\n\r\n\r\n");
+        bw.flush();
+        Thread.sleep(5000);
+        sslSocket.close();
+    }
+
+    /*
+     * Define the client side of the test.
+     *
+     * If the server prematurely exits, serverReady will be set to true
+     * to avoid infinite hangs.
+     */
+    void doClientSide() throws Exception {
+
+        /*
+         * Wait for server to get started.
+         */
+        while (!serverReady) {
+            Thread.sleep(50);
+        }
+
+        URL url = new URL("https://localhost:"+serverPort+"/index.html");
+        HttpsURLConnection urlc = (HttpsURLConnection)url.openConnection();
+        urlc.setHostnameVerifier(this);
+        urlc.getInputStream();
+
+        if (urlc.getResponseCode() == -1) {
+            throw new RuntimeException("getResponseCode() returns -1");
+        }
+    }
+
+    /*
+     * =============================================================
+     * The remainder is just support stuff
+     */
+
+    // use any free port by default
+    volatile int serverPort = 0;
+
+    volatile Exception serverException = null;
+    volatile Exception clientException = null;
+
+    public static void main(String[] args) throws Exception {
+        String keyFilename =
+            System.getProperty("test.src", "./") + "/" + pathToStores +
+                "/" + keyStoreFile;
+        String trustFilename =
+            System.getProperty("test.src", "./") + "/" + pathToStores +
+                "/" + trustStoreFile;
+
+        System.setProperty("javax.net.ssl.keyStore", keyFilename);
+        System.setProperty("javax.net.ssl.keyStorePassword", passwd);
+        System.setProperty("javax.net.ssl.trustStore", trustFilename);
+        System.setProperty("javax.net.ssl.trustStorePassword", passwd);
+
+        if (debug)
+            System.setProperty("javax.net.debug", "all");
+
+        /*
+         * Start the tests.
+         */
+        new CriticalSubjectAltName();
+    }
+
+    Thread clientThread = null;
+    Thread serverThread = null;
+
+    /*
+     * Primary constructor, used to drive remainder of the test.
+     *
+     * Fork off the other side, then do your work.
+     */
+    CriticalSubjectAltName() throws Exception {
+        if (separateServerThread) {
+            startServer(true);
+            startClient(false);
+        } else {
+            startClient(true);
+            startServer(false);
+        }
+
+        /*
+         * Wait for other side to close down.
+         */
+        if (separateServerThread) {
+            serverThread.join();
+        } else {
+            clientThread.join();
+        }
+
+        /*
+         * When we get here, the test is pretty much over.
+         *
+         * If the main thread excepted, that propagates back
+         * immediately.  If the other thread threw an exception, we
+         * should report back.
+         */
+        if (serverException != null)
+            throw serverException;
+        if (clientException != null)
+            throw clientException;
+    }
+
+    void startServer(boolean newThread) throws Exception {
+        if (newThread) {
+            serverThread = new Thread() {
+                public void run() {
+                    try {
+                        doServerSide();
+                    } catch (Exception e) {
+                        /*
+                         * Our server thread just died.
+                         *
+                         * Release the client, if not active already...
+                         */
+                        System.err.println("Server died...");
+                        serverReady = true;
+                        serverException = e;
+                    }
+                }
+            };
+            serverThread.start();
+        } else {
+            doServerSide();
+        }
+    }
+
+    void startClient(boolean newThread) throws Exception {
+        if (newThread) {
+            clientThread = new Thread() {
+                public void run() {
+                    try {
+                        doClientSide();
+                    } catch (Exception e) {
+                        /*
+                         * Our client thread just died.
+                         */
+                        System.err.println("Client died...");
+                        clientException = e;
+                    }
+                }
+            };
+            clientThread.start();
+        } else {
+            doClientSide();
+        }
+    }
+
+    // Simple test method to blindly agree that hostname and certname match
+    public boolean verify(String hostname, SSLSession session) {
+        return true;
+    }
+
+}

Binary file jdk/test/sun/security/ssl/com/sun/net/ssl/internal/www/protocol/https/HttpsURLConnection/crisubn.jks has changed

Binary file jdk/test/sun/security/ssl/com/sun/net/ssl/internal/www/protocol/https/HttpsURLConnection/trusted.jks has changed