760 lines
24 KiB
Java
760 lines
24 KiB
Java
/*
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* Copyright (c) 2007, Cameron Rich
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the axTLS project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Demonstrate the use of the axTLS library in Java with a set of
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* command-line parameters similar to openssl. In fact, openssl clients
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* should be able to communicate with axTLS servers and visa-versa. *
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* This code has various bits enabled depending on the configuration. To enable
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* the most interesting version, compile with the 'full mode' enabled.
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*
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* To see what options you have, run the following:
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* > java -jar axtls.jar s_server -?
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* > java -jar axtls.jar s_client -?
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*
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* The axtls/axtlsj shared libraries must be in the same directory or be found
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* by the OS.
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*/
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import java.io.*;
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import java.util.*;
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import java.net.*;
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import axTLSj.*;
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public class axssl
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{
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/*
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* Main()
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*/
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public static void main(String[] args)
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{
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if (args.length == 1 && args[0].equals("version"))
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{
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System.out.println("axtls.jar " + SSLUtil.version());
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System.exit(0);
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}
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axssl runner = new axssl();
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try
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{
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if (args.length < 1 ||
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(!args[0].equals("s_server") &&
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!args[0].equals("s_client")))
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{
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runner.print_options(args.length > 0 ? args[0] : "");
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}
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int build_mode = SSLUtil.buildMode();
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if (args[0].equals("s_server"))
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runner.do_server(build_mode, args);
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else
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runner.do_client(build_mode, args);
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}
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catch (Exception e)
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{
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System.out.println(e);
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}
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}
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/*
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* do_server()
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*/
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private void do_server(int build_mode, String[] args)
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throws Exception
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{
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int i = 1;
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int port = 4433;
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int options = axtlsj.SSL_DISPLAY_CERTS;
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boolean quiet = false;
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String password = null;
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String private_key_file = null;
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/* organise the cert/ca_cert lists */
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int cert_size = SSLUtil.maxCerts();
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int ca_cert_size = SSLUtil.maxCACerts();
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String[] cert = new String[cert_size];
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String[] ca_cert = new String[ca_cert_size];
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int cert_index = 0;
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int ca_cert_index = 0;
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while (i < args.length)
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{
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if (args[i].equals("-accept"))
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{
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if (i >= args.length-1)
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{
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print_server_options(build_mode, args[i]);
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}
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port = Integer.parseInt(args[++i]);
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}
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else if (args[i].equals("-quiet"))
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{
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quiet = true;
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options &= ~(int)axtlsj.SSL_DISPLAY_CERTS;
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}
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else if (build_mode >= axtlsj.SSL_BUILD_SERVER_ONLY)
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{
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if (args[i].equals("-cert"))
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{
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if (i >= args.length-1 || cert_index >= cert_size)
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{
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print_server_options(build_mode, args[i]);
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}
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cert[cert_index++] = args[++i];
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}
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else if (args[i].equals("-key"))
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{
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if (i >= args.length-1)
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{
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print_server_options(build_mode, args[i]);
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}
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private_key_file = args[++i];
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options |= axtlsj.SSL_NO_DEFAULT_KEY;
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}
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else if (args[i].equals("-pass"))
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{
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if (i >= args.length-1)
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{
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print_server_options(build_mode, args[i]);
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}
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password = args[++i];
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}
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else if (build_mode >= axtlsj.SSL_BUILD_ENABLE_VERIFICATION)
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{
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if (args[i].equals("-verify"))
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{
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options |= axtlsj.SSL_CLIENT_AUTHENTICATION;
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}
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else if (args[i].equals("-CAfile"))
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{
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if (i >= args.length-1 || ca_cert_index >= ca_cert_size)
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{
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print_server_options(build_mode, args[i]);
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}
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ca_cert[ca_cert_index++] = args[++i];
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}
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else if (build_mode == axtlsj.SSL_BUILD_FULL_MODE)
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{
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if (args[i].equals("-debug"))
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{
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options |= axtlsj.SSL_DISPLAY_BYTES;
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}
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else if (args[i].equals("-state"))
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{
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options |= axtlsj.SSL_DISPLAY_STATES;
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}
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else if (args[i].equals("-show-rsa"))
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{
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options |= axtlsj.SSL_DISPLAY_RSA;
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}
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else
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print_server_options(build_mode, args[i]);
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}
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else
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print_server_options(build_mode, args[i]);
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}
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else
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print_server_options(build_mode, args[i]);
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}
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else
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print_server_options(build_mode, args[i]);
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i++;
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}
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/* Create socket for incoming connections */
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ServerSocket server_sock = new ServerSocket(port);
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/**********************************************************************
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* This is where the interesting stuff happens. Up until now we've
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* just been setting up sockets etc. Now we do the SSL handshake.
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**********************************************************************/
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SSLServer ssl_ctx = new SSLServer(options,
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axtlsj.SSL_DEFAULT_SVR_SESS);
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if (ssl_ctx == null)
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throw new Exception("Error: Server context is invalid");
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if (private_key_file != null)
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{
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int obj_type = axtlsj.SSL_OBJ_RSA_KEY;
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if (private_key_file.endsWith(".p8"))
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obj_type = axtlsj.SSL_OBJ_PKCS8;
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else if (private_key_file.endsWith(".p12"))
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obj_type = axtlsj.SSL_OBJ_PKCS12;
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if (ssl_ctx.objLoad(obj_type,
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private_key_file, password) != axtlsj.SSL_OK)
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{
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throw new Exception("Error: Private key '" + private_key_file +
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"' is undefined.");
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}
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}
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for (i = 0; i < cert_index; i++)
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{
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if (ssl_ctx.objLoad(axtlsj.SSL_OBJ_X509_CERT,
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cert[i], null) != axtlsj.SSL_OK)
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{
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throw new Exception("Certificate '" + cert[i] +
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"' is undefined.");
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}
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}
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for (i = 0; i < ca_cert_index; i++)
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{
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if (ssl_ctx.objLoad(axtlsj.SSL_OBJ_X509_CACERT,
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ca_cert[i], null) != axtlsj.SSL_OK)
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{
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throw new Exception("Certificate '" + ca_cert[i] +
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"' is undefined.");
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}
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}
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int res;
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SSLReadHolder rh = new SSLReadHolder();
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for (;;)
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{
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if (!quiet)
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{
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System.out.println("ACCEPT");
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}
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Socket client_sock = server_sock.accept();
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SSL ssl = ssl_ctx.connect(client_sock);
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while ((res = ssl_ctx.read(ssl, rh)) == axtlsj.SSL_OK)
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{
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/* check when the connection has been established */
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if (ssl.handshakeStatus() == axtlsj.SSL_OK)
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break;
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/* could do something else here */
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}
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if (res == axtlsj.SSL_OK) /* connection established and ok */
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{
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if (!quiet)
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{
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display_session_id(ssl);
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display_cipher(ssl);
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}
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/* now read (and display) whatever the client sends us */
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for (;;)
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{
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/* keep reading until we get something interesting */
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while ((res = ssl_ctx.read(ssl, rh)) == axtlsj.SSL_OK)
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{
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/* could do something else here */
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}
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if (res < axtlsj.SSL_OK)
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{
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if (!quiet)
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{
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System.out.println("CONNECTION CLOSED");
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}
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break;
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}
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/* convert to String */
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byte[] buf = rh.getData();
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char[] str = new char[res];
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for (i = 0; i < res; i++)
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{
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str[i] = (char)buf[i];
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}
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System.out.print(str);
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}
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}
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else if (!quiet)
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{
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SSLUtil.displayError(res);
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}
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/* client was disconnected or the handshake failed. */
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ssl.dispose();
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client_sock.close();
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}
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/* ssl_ctx.dispose(); */
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}
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/*
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* do_client()
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*/
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private void do_client(int build_mode, String[] args)
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throws Exception
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{
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if (build_mode < axtlsj.SSL_BUILD_ENABLE_CLIENT)
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print_client_options(build_mode, args[1]);
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int i = 1, res;
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int port = 4433;
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boolean quiet = false;
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String password = null;
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int reconnect = 0;
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String private_key_file = null;
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String hostname = "127.0.0.1";
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/* organise the cert/ca_cert lists */
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int cert_index = 0;
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int ca_cert_index = 0;
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int cert_size = SSLUtil.maxCerts();
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int ca_cert_size = SSLUtil.maxCACerts();
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String[] cert = new String[cert_size];
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String[] ca_cert = new String[ca_cert_size];
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int options = axtlsj.SSL_SERVER_VERIFY_LATER|axtlsj.SSL_DISPLAY_CERTS;
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byte[] session_id = null;
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while (i < args.length)
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{
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if (args[i].equals("-connect"))
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{
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String host_port;
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if (i >= args.length-1)
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{
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print_client_options(build_mode, args[i]);
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}
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host_port = args[++i];
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int index_colon;
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if ((index_colon = host_port.indexOf(':')) < 0)
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print_client_options(build_mode, args[i]);
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hostname = new String(host_port.toCharArray(),
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0, index_colon);
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port = Integer.parseInt(new String(host_port.toCharArray(),
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index_colon+1, host_port.length()-index_colon-1));
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}
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else if (args[i].equals("-cert"))
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{
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if (i >= args.length-1 || cert_index >= cert_size)
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{
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print_client_options(build_mode, args[i]);
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}
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cert[cert_index++] = args[++i];
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}
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else if (args[i].equals("-CAfile"))
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{
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if (i >= args.length-1 || ca_cert_index >= ca_cert_size)
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{
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print_client_options(build_mode, args[i]);
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}
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ca_cert[ca_cert_index++] = args[++i];
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}
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else if (args[i].equals("-key"))
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{
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if (i >= args.length-1)
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{
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print_client_options(build_mode, args[i]);
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}
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private_key_file = args[++i];
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options |= axtlsj.SSL_NO_DEFAULT_KEY;
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}
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else if (args[i].equals("-verify"))
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{
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options &= ~(int)axtlsj.SSL_SERVER_VERIFY_LATER;
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}
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else if (args[i].equals("-reconnect"))
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{
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reconnect = 4;
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}
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else if (args[i].equals("-quiet"))
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{
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quiet = true;
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options &= ~(int)axtlsj.SSL_DISPLAY_CERTS;
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}
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else if (args[i].equals("-pass"))
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{
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if (i >= args.length-1)
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{
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print_server_options(build_mode, args[i]);
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}
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password = args[++i];
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}
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else if (build_mode == axtlsj.SSL_BUILD_FULL_MODE)
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{
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if (args[i].equals("-debug"))
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{
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options |= axtlsj.SSL_DISPLAY_BYTES;
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}
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else if (args[i].equals("-state"))
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{
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options |= axtlsj.SSL_DISPLAY_STATES;
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}
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else if (args[i].equals("-show-rsa"))
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{
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options |= axtlsj.SSL_DISPLAY_RSA;
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}
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else
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print_client_options(build_mode, args[i]);
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}
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else /* don't know what this is */
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print_client_options(build_mode, args[i]);
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i++;
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}
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Socket client_sock = new Socket(hostname, port);
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if (!client_sock.isConnected())
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{
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System.out.println("could not connect");
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throw new Exception();
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}
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if (!quiet)
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{
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System.out.println("CONNECTED");
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}
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/**********************************************************************
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* This is where the interesting stuff happens. Up until now we've
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* just been setting up sockets etc. Now we do the SSL handshake.
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**********************************************************************/
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SSLClient ssl_ctx = new SSLClient(options,
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axtlsj.SSL_DEFAULT_CLNT_SESS);
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if (ssl_ctx == null)
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{
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throw new Exception("Error: Client context is invalid");
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}
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if (private_key_file != null)
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{
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int obj_type = axtlsj.SSL_OBJ_RSA_KEY;
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if (private_key_file.endsWith(".p8"))
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obj_type = axtlsj.SSL_OBJ_PKCS8;
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else if (private_key_file.endsWith(".p12"))
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obj_type = axtlsj.SSL_OBJ_PKCS12;
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if (ssl_ctx.objLoad(obj_type,
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private_key_file, password) != axtlsj.SSL_OK)
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{
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throw new Exception("Error: Private key '" + private_key_file +
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"' is undefined.");
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}
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}
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for (i = 0; i < cert_index; i++)
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{
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if (ssl_ctx.objLoad(axtlsj.SSL_OBJ_X509_CERT,
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cert[i], null) != axtlsj.SSL_OK)
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{
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throw new Exception("Certificate '" + cert[i] +
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"' is undefined.");
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}
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}
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for (i = 0; i < ca_cert_index; i++)
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{
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if (ssl_ctx.objLoad(axtlsj.SSL_OBJ_X509_CACERT,
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ca_cert[i], null) != axtlsj.SSL_OK)
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{
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throw new Exception("Certificate '" + ca_cert[i] +
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"' is undefined.");
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}
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}
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SSL ssl = null;
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/* Try session resumption? */
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if (reconnect > 0)
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{
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while (reconnect-- > 0)
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{
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ssl = ssl_ctx.connect(client_sock, session_id);
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if ((res = ssl.handshakeStatus()) != axtlsj.SSL_OK)
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{
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if (!quiet)
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{
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SSLUtil.displayError(res);
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}
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ssl.dispose();
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throw new Exception();
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}
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display_session_id(ssl);
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session_id = ssl.getSessionId();
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if (reconnect > 0)
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{
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ssl.dispose();
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client_sock.close();
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/* and reconnect */
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client_sock = new Socket(hostname, port);
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}
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}
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}
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else
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{
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ssl = ssl_ctx.connect(client_sock, null);
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}
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/* check the return status */
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if ((res = ssl.handshakeStatus()) != axtlsj.SSL_OK)
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{
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if (!quiet)
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{
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SSLUtil.displayError(res);
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}
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throw new Exception();
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}
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if (!quiet)
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{
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String common_name =
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ssl.getCertificateDN(axtlsj.SSL_X509_CERT_COMMON_NAME);
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if (common_name != null)
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{
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System.out.println("Common Name:\t\t\t" + common_name);
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}
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|
display_session_id(ssl);
|
|
display_cipher(ssl);
|
|
}
|
|
|
|
BufferedReader in = new BufferedReader(
|
|
new InputStreamReader(System.in));
|
|
|
|
for (;;)
|
|
{
|
|
String user_input = in.readLine();
|
|
|
|
if (user_input == null)
|
|
break;
|
|
|
|
byte[] buf = new byte[user_input.length()+2];
|
|
buf[buf.length-2] = (byte)'\n'; /* add the carriage return */
|
|
buf[buf.length-1] = 0; /* null terminate */
|
|
|
|
for (i = 0; i < buf.length-2; i++)
|
|
{
|
|
buf[i] = (byte)user_input.charAt(i);
|
|
}
|
|
|
|
if ((res = ssl_ctx.write(ssl, buf)) < axtlsj.SSL_OK)
|
|
{
|
|
if (!quiet)
|
|
{
|
|
SSLUtil.displayError(res);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
ssl_ctx.dispose();
|
|
}
|
|
|
|
/**
|
|
* We've had some sort of command-line error. Print out the basic options.
|
|
*/
|
|
private void print_options(String option)
|
|
{
|
|
System.out.println("axssl: Error: '" + option +
|
|
"' is an invalid command.");
|
|
System.out.println("usage: axtlsj.jar [s_server|s_client|version] " +
|
|
"[args ...]");
|
|
System.exit(1);
|
|
}
|
|
|
|
/**
|
|
* We've had some sort of command-line error. Print out the server options.
|
|
*/
|
|
private void print_server_options(int build_mode, String option)
|
|
{
|
|
int cert_size = SSLUtil.maxCerts();
|
|
int ca_cert_size = SSLUtil.maxCACerts();
|
|
|
|
System.out.println("unknown option " + option);
|
|
System.out.println("usage: s_server [args ...]");
|
|
System.out.println(" -accept arg\t- port to accept on (default " +
|
|
"is 4433)");
|
|
System.out.println(" -quiet\t\t- No server output");
|
|
|
|
if (build_mode >= axtlsj.SSL_BUILD_SERVER_ONLY)
|
|
{
|
|
System.out.println(" -cert arg\t- certificate file to add (in " +
|
|
"addition to default) to chain -");
|
|
System.out.println("\t\t Can repeat up to " + cert_size + " times");
|
|
System.out.println(" -key arg\t- Private key file to use");
|
|
System.out.println(" -pass\t\t- private key file pass phrase source");
|
|
}
|
|
|
|
if (build_mode >= axtlsj.SSL_BUILD_ENABLE_VERIFICATION)
|
|
{
|
|
System.out.println(" -verify\t- turn on peer certificate " +
|
|
"verification");
|
|
System.out.println(" -CAfile arg\t- Certificate authority. ");
|
|
System.out.println("\t\t Can repeat up to " +
|
|
ca_cert_size + " times");
|
|
}
|
|
|
|
if (build_mode == axtlsj.SSL_BUILD_FULL_MODE)
|
|
{
|
|
System.out.println(" -debug\t\t- Print more output");
|
|
System.out.println(" -state\t\t- Show state messages");
|
|
System.out.println(" -show-rsa\t- Show RSA state");
|
|
}
|
|
|
|
System.exit(1);
|
|
}
|
|
|
|
/**
|
|
* We've had some sort of command-line error. Print out the client options.
|
|
*/
|
|
private void print_client_options(int build_mode, String option)
|
|
{
|
|
int cert_size = SSLUtil.maxCerts();
|
|
int ca_cert_size = SSLUtil.maxCACerts();
|
|
|
|
System.out.println("unknown option " + option);
|
|
|
|
if (build_mode >= axtlsj.SSL_BUILD_ENABLE_CLIENT)
|
|
{
|
|
System.out.println("usage: s_client [args ...]");
|
|
System.out.println(" -connect host:port - who to connect to " +
|
|
"(default is localhost:4433)");
|
|
System.out.println(" -verify\t- turn on peer certificate " +
|
|
"verification");
|
|
System.out.println(" -cert arg\t- certificate file to use");
|
|
System.out.println(" -key arg\t- Private key file to use");
|
|
System.out.println("\t\t Can repeat up to " + cert_size +
|
|
" times");
|
|
System.out.println(" -CAfile arg\t- Certificate authority.");
|
|
System.out.println("\t\t Can repeat up to " + ca_cert_size +
|
|
" times");
|
|
System.out.println(" -quiet\t\t- No client output");
|
|
System.out.println(" -pass\t\t- private key file pass " +
|
|
"phrase source");
|
|
System.out.println(" -reconnect\t- Drop and re-make the " +
|
|
"connection with the same Session-ID");
|
|
|
|
if (build_mode == axtlsj.SSL_BUILD_FULL_MODE)
|
|
{
|
|
System.out.println(" -debug\t\t- Print more output");
|
|
System.out.println(" -state\t\t- Show state messages");
|
|
System.out.println(" -show-rsa\t- Show RSA state");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
System.out.println("Change configuration to allow this feature");
|
|
}
|
|
|
|
System.exit(1);
|
|
}
|
|
|
|
/**
|
|
* Display what cipher we are using
|
|
*/
|
|
private void display_cipher(SSL ssl)
|
|
{
|
|
System.out.print("CIPHER is ");
|
|
|
|
byte ciph_id = ssl.getCipherId();
|
|
|
|
if (ciph_id == axtlsj.SSL_AES128_SHA)
|
|
System.out.println("AES128-SHA");
|
|
else if (ciph_id == axtlsj.SSL_AES256_SHA)
|
|
System.out.println("AES256-SHA");
|
|
else if (ciph_id == axtlsj.SSL_RC4_128_SHA)
|
|
System.out.println("RC4-SHA");
|
|
else if (ciph_id == axtlsj.SSL_RC4_128_MD5)
|
|
System.out.println("RC4-MD5");
|
|
else
|
|
System.out.println("Unknown - " + ssl.getCipherId());
|
|
}
|
|
|
|
public char toHexChar(int i)
|
|
{
|
|
if ((0 <= i) && (i <= 9 ))
|
|
return (char)('0' + i);
|
|
else
|
|
return (char)('a' + (i-10));
|
|
}
|
|
|
|
public void bytesToHex(byte[] data)
|
|
{
|
|
StringBuffer buf = new StringBuffer();
|
|
for (int i = 0; i < data.length; i++ )
|
|
{
|
|
buf.append(toHexChar((data[i]>>>4)&0x0F));
|
|
buf.append(toHexChar(data[i]&0x0F));
|
|
}
|
|
|
|
System.out.println(buf);
|
|
}
|
|
|
|
|
|
/**
|
|
* Display what session id we have.
|
|
*/
|
|
private void display_session_id(SSL ssl)
|
|
{
|
|
byte[] session_id = ssl.getSessionId();
|
|
|
|
if (session_id.length > 0)
|
|
{
|
|
System.out.println("-----BEGIN SSL SESSION PARAMETERS-----");
|
|
bytesToHex(session_id);
|
|
System.out.println("-----END SSL SESSION PARAMETERS-----");
|
|
}
|
|
}
|
|
}
|