--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/ssl/templates/SSLEngineTemplate.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,377 @@
+/*
+ * Copyright 2003-2007 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 1234567
+ * @summary SSLEngine has not yet caused Solaris kernel to panic
+ *
+ */
+
+/**
+ * A SSLEngine usage example which simplifies the presentation
+ * by removing the I/O and multi-threading concerns.
+ *
+ * The test creates two SSLEngines, simulating a client and server.
+ * The "transport" layer consists two byte buffers: think of them
+ * as directly connected pipes.
+ *
+ * Note, 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
+ * ====== ====== =======
+ * wrap() ... ClientHello
+ * ... unwrap() ClientHello
+ * ... wrap() ServerHello/Certificate
+ * unwrap() ... ServerHello/Certificate
+ * wrap() ... ClientKeyExchange
+ * wrap() ... ChangeCipherSpec
+ * wrap() ... Finished
+ * ... unwrap() ClientKeyExchange
+ * ... unwrap() ChangeCipherSpec
+ * ... unwrap() Finished
+ * ... wrap() ChangeCipherSpec
+ * ... wrap() Finished
+ * unwrap() ... ChangeCipherSpec
+ * unwrap() ... Finished
+ */
+
+import javax.net.ssl.*;
+import javax.net.ssl.SSLEngineResult.*;
+import java.io.*;
+import java.security.*;
+import java.nio.*;
+
+public class SSLEngineTemplate {
+
+ /*
+ * Enables logging of the SSLEngine 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 clientEngine; // client Engine
+ private ByteBuffer clientOut; // write side of clientEngine
+ private ByteBuffer clientIn; // read side of clientEngine
+
+ private SSLEngine serverEngine; // server Engine
+ private ByteBuffer serverOut; // write side of serverEngine
+ private ByteBuffer serverIn; // read side of serverEngine
+
+ /*
+ * For data transport, this example uses local ByteBuffers. This
+ * isn't really useful, but the purpose of this example is to show
+ * SSLEngine concepts, not how to do network transport.
+ */
+ private ByteBuffer cTOs; // "reliable" transport client->server
+ private ByteBuffer sTOc; // "reliable" transport server->client
+
+ /*
+ * The following is to set up the keystores.
+ */
+ private static String pathToStores = "../etc";
+ private static String keyStoreFile = "keystore";
+ private static String trustStoreFile = "truststore";
+ private static 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");
+ }
+
+ SSLEngineTemplate test = new SSLEngineTemplate();
+ test.runTest();
+
+ System.out.println("Test Passed.");
+ }
+
+ /*
+ * Create an initialized SSLContext to use for these tests.
+ */
+ public SSLEngineTemplate() 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("TLS");
+
+ sslCtx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
+
+ sslc = sslCtx;
+ }
+
+ /*
+ * Run the test.
+ *
+ * Sit in a tight loop, both engines calling wrap/unwrap regardless
+ * of whether data is available or not. We do this until both engines
+ * report back they are closed.
+ *
+ * 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() throws Exception {
+ boolean dataDone = false;
+
+ createSSLEngines();
+ createBuffers();
+
+ SSLEngineResult clientResult; // results from client's last operation
+ SSLEngineResult serverResult; // results from server's 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.
+ */
+ while (!isEngineClosed(clientEngine) ||
+ !isEngineClosed(serverEngine)) {
+
+ log("================");
+
+ clientResult = clientEngine.wrap(clientOut, cTOs);
+ log("client wrap: ", clientResult);
+ runDelegatedTasks(clientResult, clientEngine);
+
+ serverResult = serverEngine.wrap(serverOut, sTOc);
+ log("server wrap: ", serverResult);
+ runDelegatedTasks(serverResult, serverEngine);
+
+ cTOs.flip();
+ sTOc.flip();
+
+ log("----");
+
+ clientResult = clientEngine.unwrap(sTOc, clientIn);
+ log("client unwrap: ", clientResult);
+ runDelegatedTasks(clientResult, clientEngine);
+
+ serverResult = serverEngine.unwrap(cTOs, serverIn);
+ log("server unwrap: ", serverResult);
+ runDelegatedTasks(serverResult, serverEngine);
+
+ cTOs.compact();
+ sTOc.compact();
+
+ /*
+ * After we've transfered all application data between the client
+ * and server, we close the clientEngine's outbound stream.
+ * This generates a close_notify handshake message, which the
+ * server engine receives and responds by closing itself.
+ */
+ if (!dataDone && (clientOut.limit() == serverIn.position()) &&
+ (serverOut.limit() == clientIn.position())) {
+
+ /*
+ * A sanity check to ensure we got what was sent.
+ */
+ checkTransfer(serverOut, clientIn);
+ checkTransfer(clientOut, serverIn);
+
+ log("\tClosing clientEngine's *OUTBOUND*...");
+ clientEngine.closeOutbound();
+ dataDone = true;
+ }
+ }
+ }
+
+ /*
+ * Using the SSLContext created during object creation,
+ * create/configure the SSLEngines we'll use for this test.
+ */
+ private void createSSLEngines() throws Exception {
+ /*
+ * Configure the serverEngine to act as a server in the SSL/TLS
+ * handshake. Also, require SSL client authentication.
+ */
+ serverEngine = sslc.createSSLEngine();
+ serverEngine.setUseClientMode(false);
+ serverEngine.setNeedClientAuth(true);
+
+ /*
+ * Similar to above, but using client mode instead.
+ */
+ clientEngine = sslc.createSSLEngine("client", 80);
+ clientEngine.setUseClientMode(true);
+ }
+
+ /*
+ * Create and size the buffers appropriately.
+ */
+ private void createBuffers() {
+
+ /*
+ * We'll assume the buffer sizes are the same
+ * between client and server.
+ */
+ SSLSession session = clientEngine.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.
+ */
+ clientIn = ByteBuffer.allocate(appBufferMax + 50);
+ serverIn = ByteBuffer.allocate(appBufferMax + 50);
+
+ cTOs = ByteBuffer.allocateDirect(netBufferMax);
+ sTOc = ByteBuffer.allocateDirect(netBufferMax);
+
+ clientOut = ByteBuffer.wrap("Hi Server, I'm Client".getBytes());
+ serverOut = ByteBuffer.wrap("Hello Client, I'm Server".getBytes());
+ }
+
+ /*
+ * 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());
+ }
+
+ /*
+ * Simple check to make sure everything came across as expected.
+ */
+ private static void checkTransfer(ByteBuffer a, ByteBuffer b)
+ throws Exception {
+ a.flip();
+ b.flip();
+
+ if (!a.equals(b)) {
+ throw new Exception("Data didn't transfer cleanly");
+ } else {
+ log("\tData transferred cleanly");
+ }
+
+ a.position(a.limit());
+ b.position(b.limit());
+ a.limit(a.capacity());
+ b.limit(b.capacity());
+ }
+
+ /*
+ * 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);
+ }
+ }
+}