changeset 4487:25df27523672

7031830: bad_record_mac failure on TLSv1.2 enabled connection with SSLEngine Reviewed-by: xuelei, weijun, asaha
author wetmore
date Tue, 18 Oct 2011 14:21:31 -0700
parents 35a7ac263804
children ca16821efef9
files src/share/classes/sun/security/ssl/CipherBox.java test/sun/security/ssl/com/sun/net/ssl/internal/ssl/SSLEngineImpl/SSLEngineBadBufferArrayAccess.java
diffstat 2 files changed, 487 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/classes/sun/security/ssl/CipherBox.java	Fri Oct 14 16:52:00 2011 +0100
+++ b/src/share/classes/sun/security/ssl/CipherBox.java	Tue Oct 18 14:21:31 2011 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2011, 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
@@ -305,9 +305,11 @@
                     byte[] buf = null;
                     int limit = bb.limit();
                     if (bb.hasArray()) {
+                        int arrayOffset = bb.arrayOffset();
                         buf = bb.array();
-                        System.arraycopy(buf, pos,
-                                buf, pos + prefix.length, limit - pos);
+                        System.arraycopy(buf, arrayOffset + pos,
+                            buf, arrayOffset + pos + prefix.length,
+                            limit - pos);
                         bb.limit(limit + prefix.length);
                     } else {
                         buf = new byte[limit - pos];
@@ -491,9 +493,10 @@
                     byte[] buf = null;
                     int limit = bb.limit();
                     if (bb.hasArray()) {
+                        int arrayOffset = bb.arrayOffset();
                         buf = bb.array();
-                        System.arraycopy(buf, pos + blockSize,
-                                         buf, pos, limit - pos - blockSize);
+                        System.arraycopy(buf, arrayOffset + pos + blockSize,
+                            buf, arrayOffset + pos, limit - pos - blockSize);
                         bb.limit(limit - blockSize);
                     } else {
                         buf = new byte[limit - pos - blockSize];
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/sun/security/ssl/com/sun/net/ssl/internal/ssl/SSLEngineImpl/SSLEngineBadBufferArrayAccess.java	Tue Oct 18 14:21:31 2011 -0700
@@ -0,0 +1,479 @@
+/*
+ * Copyright (c) 2011, 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 7031830
+ * @summary bad_record_mac failure on TLSv1.2 enabled connection with SSLEngine
+ * @run main/othervm SSLEngineBadBufferArrayAccess
+ *
+ *     SunJSSE does not support dynamic system properties, no way to re-use
+ *     system properties in samevm/agentvm mode.
+ */
+
+/**
+ * A SSLSocket/SSLEngine interop test case.  This is not the way to
+ * code SSLEngine-based servers, but works for what we need to do here,
+ * which is to make sure that SSLEngine/SSLSockets can talk to each other.
+ * SSLEngines can use direct or indirect buffers, and different code
+ * is used to get at the buffer contents internally, so we test that here.
+ *
+ * The test creates one SSLSocket (client) and one SSLEngine (server).
+ * The SSLSocket talks to a raw ServerSocket, and the server code
+ * does the translation between byte [] and ByteBuffers that the SSLEngine
+ * can use.  The "transport" layer consists of a Socket Input/OutputStream
+ * and two byte buffers for the SSLEngines:  think of them
+ * as directly connected pipes.
+ *
+ * Again, this is a *very* simple example: real code will be much more
+ * involved.  For example, different threading and I/O models could be
+ * used, transport mechanisms could close unexpectedly, and so on.
+ *
+ * When this application runs, notice that several messages
+ * (wrap/unwrap) pass before any application data is consumed or
+ * produced.  (For more information, please see the SSL/TLS
+ * specifications.)  There may several steps for a successful handshake,
+ * so it's typical to see the following series of operations:
+ *
+ *      client          server          message
+ *      ======          ======          =======
+ *      write()         ...             ClientHello
+ *      ...             unwrap()        ClientHello
+ *      ...             wrap()          ServerHello/Certificate
+ *      read()         ...             ServerHello/Certificate
+ *      write()         ...             ClientKeyExchange
+ *      write()         ...             ChangeCipherSpec
+ *      write()         ...             Finished
+ *      ...             unwrap()        ClientKeyExchange
+ *      ...             unwrap()        ChangeCipherSpec
+ *      ...             unwrap()        Finished
+ *      ...             wrap()          ChangeCipherSpec
+ *      ...             wrap()          Finished
+ *      read()          ...             ChangeCipherSpec
+ *      read()          ...             Finished
+ *
+ * This particular bug had a problem where byte buffers backed by an
+ * array didn't offset correctly, and we got bad MAC errors.
+ */
+import javax.net.ssl.*;
+import javax.net.ssl.SSLEngineResult.*;
+import java.io.*;
+import java.net.*;
+import java.security.*;
+import java.nio.*;
+
+public class SSLEngineBadBufferArrayAccess {
+
+    /*
+     * Enables logging of the SSL/TLS operations.
+     */
+    private static boolean logging = true;
+
+    /*
+     * Enables the JSSE system debugging system property:
+     *
+     *     -Djavax.net.debug=all
+     *
+     * This gives a lot of low-level information about operations underway,
+     * including specific handshake messages, and might be best examined
+     * after gaining some familiarity with this application.
+     */
+    private static boolean debug = false;
+    private SSLContext sslc;
+    private SSLEngine serverEngine;     // server-side SSLEngine
+    private SSLSocket sslSocket;        // client-side socket
+    private ServerSocket serverSocket;  // server-side Socket, generates the...
+    private Socket socket;              // server-side socket that will read
+
+    private final byte[] serverMsg = "Hi there Client, I'm a Server".getBytes();
+    private final byte[] clientMsg = "Hello Server, I'm a Client".getBytes();
+
+    private ByteBuffer serverOut;       // write side of serverEngine
+    private ByteBuffer serverIn;        // read side of serverEngine
+
+    private volatile Exception clientException;
+    private volatile Exception serverException;
+
+    /*
+     * For data transport, this example uses local ByteBuffers.
+     */
+    private ByteBuffer cTOs;            // "reliable" transport client->server
+    private ByteBuffer sTOc;            // "reliable" transport server->client
+
+    /*
+     * The following is to set up the keystores/trust material.
+     */
+    private static final String pathToStores = "../../../../../../../etc/";
+    private static final String keyStoreFile = "keystore";
+    private static final String trustStoreFile = "truststore";
+    private static final String passwd = "passphrase";
+    private static String keyFilename =
+            System.getProperty("test.src", ".") + "/" + pathToStores
+            + "/" + keyStoreFile;
+    private static String trustFilename =
+            System.getProperty("test.src", ".") + "/" + pathToStores
+            + "/" + trustStoreFile;
+
+    /*
+     * Main entry point for this test.
+     */
+    public static void main(String args[]) throws Exception {
+        if (debug) {
+            System.setProperty("javax.net.debug", "all");
+        }
+
+        String [] protocols = new String [] {
+            "SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2" };
+
+        for (String protocol : protocols) {
+            log("Testing " + protocol);
+            /*
+             * Run the tests with direct and indirect buffers.
+             */
+            SSLEngineBadBufferArrayAccess test =
+                new SSLEngineBadBufferArrayAccess(protocol);
+            test.runTest(true);
+            test.runTest(false);
+        }
+
+        System.out.println("Test Passed.");
+    }
+
+    /*
+     * Create an initialized SSLContext to use for these tests.
+     */
+    public SSLEngineBadBufferArrayAccess(String protocol) throws Exception {
+
+        KeyStore ks = KeyStore.getInstance("JKS");
+        KeyStore ts = KeyStore.getInstance("JKS");
+
+        char[] passphrase = "passphrase".toCharArray();
+
+        ks.load(new FileInputStream(keyFilename), passphrase);
+        ts.load(new FileInputStream(trustFilename), passphrase);
+
+        KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
+        kmf.init(ks, passphrase);
+
+        TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
+        tmf.init(ts);
+
+        SSLContext sslCtx = SSLContext.getInstance(protocol);
+
+        sslCtx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
+
+        sslc = sslCtx;
+    }
+
+    /*
+     * Run the test.
+     *
+     * Sit in a tight loop, with the server engine calling wrap/unwrap
+     * regardless of whether data is available or not.  We do this until
+     * we get the application data.  Then we shutdown and go to the next one.
+     *
+     * The main loop handles all of the I/O phases of the SSLEngine's
+     * lifetime:
+     *
+     *     initial handshaking
+     *     application data transfer
+     *     engine closing
+     *
+     * One could easily separate these phases into separate
+     * sections of code.
+     */
+    private void runTest(boolean direct) throws Exception {
+        boolean serverClose = direct;
+
+        serverSocket = new ServerSocket(0);
+        int port = serverSocket.getLocalPort();
+        Thread thread = createClientThread(port, serverClose);
+
+        socket = serverSocket.accept();
+        socket.setSoTimeout(500);
+        serverSocket.close();
+
+        createSSLEngine();
+        createBuffers(direct);
+
+        try {
+            boolean closed = false;
+
+            InputStream is = socket.getInputStream();
+            OutputStream os = socket.getOutputStream();
+
+            SSLEngineResult serverResult;   // results from last operation
+
+            /*
+             * Examining the SSLEngineResults could be much more involved,
+             * and may alter the overall flow of the application.
+             *
+             * For example, if we received a BUFFER_OVERFLOW when trying
+             * to write to the output pipe, we could reallocate a larger
+             * pipe, but instead we wait for the peer to drain it.
+             */
+            byte[] inbound = new byte[8192];
+            byte[] outbound = new byte[8192];
+
+            while (!isEngineClosed(serverEngine)) {
+                int len = 0;
+
+                // Inbound data
+                log("================");
+
+                // Read from the Client side.
+                try {
+                    len = is.read(inbound);
+                    if (len == -1) {
+                        throw new Exception("Unexpected EOF");
+                    }
+                    cTOs.put(inbound, 0, len);
+                } catch (SocketTimeoutException ste) {
+                    // swallow.  Nothing yet, probably waiting on us.
+                }
+
+                cTOs.flip();
+
+                serverResult = serverEngine.unwrap(cTOs, serverIn);
+                log("server unwrap: ", serverResult);
+                runDelegatedTasks(serverResult, serverEngine);
+                cTOs.compact();
+
+                // Outbound data
+                log("----");
+
+                serverResult = serverEngine.wrap(serverOut, sTOc);
+                log("server wrap: ", serverResult);
+                runDelegatedTasks(serverResult, serverEngine);
+
+                sTOc.flip();
+
+                if ((len = sTOc.remaining()) != 0) {
+                    sTOc.get(outbound, 0, len);
+                    os.write(outbound, 0, len);
+                    // Give the other side a chance to process
+                }
+
+                sTOc.compact();
+
+                if (!closed && (serverOut.remaining() == 0)) {
+                    closed = true;
+
+                    /*
+                     * We'll alternate initiatating the shutdown.
+                     * When the server initiates, it will take one more
+                     * loop, but tests the orderly shutdown.
+                     */
+                    if (serverClose) {
+                        serverEngine.closeOutbound();
+                    }
+                    serverIn.flip();
+
+                    /*
+                     * A sanity check to ensure we got what was sent.
+                     */
+                    if (serverIn.remaining() != clientMsg.length) {
+                        throw new Exception("Client:  Data length error");
+                    }
+
+                    for (int i = 0; i < clientMsg.length; i++) {
+                        if (clientMsg[i] != serverIn.get()) {
+                            throw new Exception("Client:  Data content error");
+                        }
+                    }
+                    serverIn.compact();
+                }
+            }
+            return;
+        } catch (Exception e) {
+            serverException = e;
+        } finally {
+            socket.close();
+
+            // Wait for the client to join up with us.
+            thread.join();
+            if (serverException != null) {
+                throw serverException;
+            }
+            if (clientException != null) {
+                throw clientException;
+            }
+        }
+    }
+
+    /*
+     * Create a client thread which does simple SSLSocket operations.
+     * We'll write and read one data packet.
+     */
+    private Thread createClientThread(final int port,
+            final boolean serverClose) throws Exception {
+
+        Thread t = new Thread("ClientThread") {
+
+            @Override
+            public void run() {
+                try {
+                    Thread.sleep(1000);  // Give server time to finish setup.
+
+                    sslSocket = (SSLSocket) sslc.getSocketFactory().
+                            createSocket("localhost", port);
+                    OutputStream os = sslSocket.getOutputStream();
+                    InputStream is = sslSocket.getInputStream();
+
+                    // write(byte[]) goes in one shot.
+                    os.write(clientMsg);
+
+                    byte[] inbound = new byte[2048];
+                    int pos = 0;
+
+                    int len;
+done:
+                    while ((len = is.read(inbound, pos, 2048 - pos)) != -1) {
+                        pos += len;
+                        // Let the client do the closing.
+                        if ((pos == serverMsg.length) && !serverClose) {
+                            sslSocket.close();
+                            break done;
+                        }
+                    }
+
+                    if (pos != serverMsg.length) {
+                        throw new Exception("Client:  Data length error");
+                    }
+
+                    for (int i = 0; i < serverMsg.length; i++) {
+                        if (inbound[i] != serverMsg[i]) {
+                            throw new Exception("Client:  Data content error");
+                        }
+                    }
+                } catch (Exception e) {
+                    clientException = e;
+                }
+            }
+        };
+        t.start();
+        return t;
+    }
+
+    /*
+     * Using the SSLContext created during object creation,
+     * create/configure the SSLEngines we'll use for this test.
+     */
+    private void createSSLEngine() throws Exception {
+        /*
+         * Configure the serverEngine to act as a server in the SSL/TLS
+         * handshake.
+         */
+        serverEngine = sslc.createSSLEngine();
+        serverEngine.setUseClientMode(false);
+        serverEngine.getNeedClientAuth();
+    }
+
+    /*
+     * Create and size the buffers appropriately.
+     */
+    private void createBuffers(boolean direct) {
+
+        SSLSession session = serverEngine.getSession();
+        int appBufferMax = session.getApplicationBufferSize();
+        int netBufferMax = session.getPacketBufferSize();
+
+        /*
+         * We'll make the input buffers a bit bigger than the max needed
+         * size, so that unwrap()s following a successful data transfer
+         * won't generate BUFFER_OVERFLOWS.
+         *
+         * We'll use a mix of direct and indirect ByteBuffers for
+         * tutorial purposes only.  In reality, only use direct
+         * ByteBuffers when they give a clear performance enhancement.
+         */
+        if (direct) {
+            serverIn = ByteBuffer.allocateDirect(appBufferMax + 50);
+            cTOs = ByteBuffer.allocateDirect(netBufferMax);
+            sTOc = ByteBuffer.allocateDirect(netBufferMax);
+        } else {
+            serverIn = ByteBuffer.allocate(appBufferMax + 50);
+            cTOs = ByteBuffer.allocate(netBufferMax);
+            sTOc = ByteBuffer.allocate(netBufferMax);
+        }
+
+        serverOut = ByteBuffer.wrap(serverMsg);
+    }
+
+    /*
+     * If the result indicates that we have outstanding tasks to do,
+     * go ahead and run them in this thread.
+     */
+    private static void runDelegatedTasks(SSLEngineResult result,
+            SSLEngine engine) throws Exception {
+
+        if (result.getHandshakeStatus() == HandshakeStatus.NEED_TASK) {
+            Runnable runnable;
+            while ((runnable = engine.getDelegatedTask()) != null) {
+                log("\trunning delegated task...");
+                runnable.run();
+            }
+            HandshakeStatus hsStatus = engine.getHandshakeStatus();
+            if (hsStatus == HandshakeStatus.NEED_TASK) {
+                throw new Exception(
+                        "handshake shouldn't need additional tasks");
+            }
+            log("\tnew HandshakeStatus: " + hsStatus);
+        }
+    }
+
+    private static boolean isEngineClosed(SSLEngine engine) {
+        return (engine.isOutboundDone() && engine.isInboundDone());
+    }
+
+    /*
+     * Logging code
+     */
+    private static boolean resultOnce = true;
+
+    private static void log(String str, SSLEngineResult result) {
+        if (!logging) {
+            return;
+        }
+        if (resultOnce) {
+            resultOnce = false;
+            System.out.println("The format of the SSLEngineResult is: \n"
+                    + "\t\"getStatus() / getHandshakeStatus()\" +\n"
+                    + "\t\"bytesConsumed() / bytesProduced()\"\n");
+        }
+        HandshakeStatus hsStatus = result.getHandshakeStatus();
+        log(str
+                + result.getStatus() + "/" + hsStatus + ", "
+                + result.bytesConsumed() + "/" + result.bytesProduced()
+                + " bytes");
+        if (hsStatus == HandshakeStatus.FINISHED) {
+            log("\t...ready for application data");
+        }
+    }
+
+    private static void log(String str) {
+        if (logging) {
+            System.out.println(str);
+        }
+    }
+}