--- /dev/null
+/*
+ * Copyright (c) 2007, Cameron Rich
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * Demonstrate the use of the axTLS library in C# with a set of
+ * command-line parameters similar to openssl. In fact, openssl clients
+ * should be able to communicate with axTLS servers and visa-versa.
+ *
+ * This code has various bits enabled depending on the configuration. To enable
+ * the most interesting version, compile with the 'full mode' enabled.
+ *
+ * To see what options you have, run the following:
+ * > axssl.csharp.exe s_server -?
+ * > axssl.csharp.exe s_client -?
+ *
+ * The axtls shared library must be in the same directory or be found
+ * by the OS.
+ */
+
+using System;
+using System.Net;
+using System.Net.Sockets;
+using axTLS;
+
+public class axssl
+{
+ /*
+ * Main()
+ */
+ public static void Main(string[] args)
+ {
+ if (args.Length == 1 && args[0] == "version")
+ {
+ Console.WriteLine("axssl.csharp " + SSLUtil.Version());
+ Environment.Exit(0);
+ }
+
+ axssl runner = new axssl();
+
+ if (args.Length < 1 || (args[0] != "s_server" && args[0] != "s_client"))
+ runner.print_options(args.Length > 0 ? args[0] : "");
+
+ int build_mode = SSLUtil.BuildMode();
+
+ if (args[0] == "s_server")
+ runner.do_server(build_mode, args);
+ else
+ runner.do_client(build_mode, args);
+ }
+
+ /*
+ * do_server()
+ */
+ private void do_server(int build_mode, string[] args)
+ {
+ int i = 1;
+ int port = 4433;
+ uint options = axtls.SSL_DISPLAY_CERTS;
+ bool quiet = false;
+ string password = null;
+ string private_key_file = null;
+
+ /* organise the cert/ca_cert lists */
+ int cert_size = SSLUtil.MaxCerts();
+ int ca_cert_size = SSLUtil.MaxCACerts();
+ string[] cert = new string[cert_size];
+ string[] ca_cert = new string[ca_cert_size];
+ int cert_index = 0;
+ int ca_cert_index = 0;
+
+ while (i < args.Length)
+ {
+ if (args[i] == "-accept")
+ {
+ if (i >= args.Length-1)
+ {
+ print_server_options(build_mode, args[i]);
+ }
+
+ port = Int32.Parse(args[++i]);
+ }
+ else if (args[i] == "-quiet")
+ {
+ quiet = true;
+ options &= ~(uint)axtls.SSL_DISPLAY_CERTS;
+ }
+ else if (build_mode >= axtls.SSL_BUILD_SERVER_ONLY)
+ {
+ if (args[i] == "-cert")
+ {
+ if (i >= args.Length-1 || cert_index >= cert_size)
+ {
+ print_server_options(build_mode, args[i]);
+ }
+
+ cert[cert_index++] = args[++i];
+ }
+ else if (args[i] == "-key")
+ {
+ if (i >= args.Length-1)
+ {
+ print_server_options(build_mode, args[i]);
+ }
+
+ private_key_file = args[++i];
+ options |= axtls.SSL_NO_DEFAULT_KEY;
+ }
+ else if (args[i] == "-pass")
+ {
+ if (i >= args.Length-1)
+ {
+ print_server_options(build_mode, args[i]);
+ }
+
+ password = args[++i];
+ }
+ else if (build_mode >= axtls.SSL_BUILD_ENABLE_VERIFICATION)
+ {
+ if (args[i] == "-verify")
+ {
+ options |= axtls.SSL_CLIENT_AUTHENTICATION;
+ }
+ else if (args[i] == "-CAfile")
+ {
+ if (i >= args.Length-1 || ca_cert_index >= ca_cert_size)
+ {
+ print_server_options(build_mode, args[i]);
+ }
+
+ ca_cert[ca_cert_index++] = args[++i];
+ }
+ else if (build_mode == axtls.SSL_BUILD_FULL_MODE)
+ {
+ if (args[i] == "-debug")
+ {
+ options |= axtls.SSL_DISPLAY_BYTES;
+ }
+ else if (args[i] == "-state")
+ {
+ options |= axtls.SSL_DISPLAY_STATES;
+ }
+ else if (args[i] == "-show-rsa")
+ {
+ options |= axtls.SSL_DISPLAY_RSA;
+ }
+ else
+ print_server_options(build_mode, args[i]);
+ }
+ else
+ print_server_options(build_mode, args[i]);
+ }
+ else
+ print_server_options(build_mode, args[i]);
+ }
+ else
+ print_server_options(build_mode, args[i]);
+
+ i++;
+ }
+
+ /* Create socket for incoming connections */
+ IPEndPoint ep = new IPEndPoint(IPAddress.Any, port);
+ TcpListener server_sock = new TcpListener(ep);
+ server_sock.Start();
+
+ /**********************************************************************
+ * This is where the interesting stuff happens. Up until now we've
+ * just been setting up sockets etc. Now we do the SSL handshake.
+ **********************************************************************/
+ SSLServer ssl_ctx = new SSLServer(
+ options, axtls.SSL_DEFAULT_SVR_SESS);
+
+ if (ssl_ctx == null)
+ {
+ Console.Error.WriteLine("Error: Server context is invalid");
+ Environment.Exit(1);
+ }
+
+ if (private_key_file != null)
+ {
+ int obj_type = axtls.SSL_OBJ_RSA_KEY;
+
+ if (private_key_file.EndsWith(".p8"))
+ obj_type = axtls.SSL_OBJ_PKCS8;
+ else if (private_key_file.EndsWith(".p12"))
+ obj_type = axtls.SSL_OBJ_PKCS12;
+
+ if (ssl_ctx.ObjLoad(obj_type,
+ private_key_file, password) != axtls.SSL_OK)
+ {
+ Console.Error.WriteLine("Private key '" + private_key_file +
+ "' is undefined.");
+ Environment.Exit(1);
+ }
+ }
+
+ for (i = 0; i < cert_index; i++)
+ {
+ if (ssl_ctx.ObjLoad(axtls.SSL_OBJ_X509_CERT,
+ cert[i], null) != axtls.SSL_OK)
+ {
+ Console.WriteLine("Certificate '" + cert[i] +
+ "' is undefined.");
+ Environment.Exit(1);
+ }
+ }
+
+ for (i = 0; i < ca_cert_index; i++)
+ {
+ if (ssl_ctx.ObjLoad(axtls.SSL_OBJ_X509_CACERT,
+ ca_cert[i], null) != axtls.SSL_OK)
+ {
+ Console.WriteLine("Certificate '" + cert[i] +
+ "' is undefined.");
+ Environment.Exit(1);
+ }
+ }
+
+ byte[] buf = null;
+ int res;
+
+ for (;;)
+ {
+ if (!quiet)
+ {
+ Console.WriteLine("ACCEPT");
+ }
+
+ Socket client_sock = server_sock.AcceptSocket();
+
+ SSL ssl = ssl_ctx.Connect(client_sock);
+
+ /* do the actual SSL handshake */
+ while ((res = ssl_ctx.Read(ssl, out buf)) == axtls.SSL_OK)
+ {
+ /* check when the connection has been established */
+ if (ssl.HandshakeStatus() == axtls.SSL_OK)
+ break;
+
+ /* could do something else here */
+ }
+
+ if (res == axtls.SSL_OK) /* connection established and ok */
+ {
+ if (!quiet)
+ {
+ display_session_id(ssl);
+ display_cipher(ssl);
+ }
+
+ /* now read (and display) whatever the client sends us */
+ for (;;)
+ {
+ /* keep reading until we get something interesting */
+ while ((res = ssl_ctx.Read(ssl, out buf)) == axtls.SSL_OK)
+ {
+ /* could do something else here */
+ }
+
+ if (res < axtls.SSL_OK)
+ {
+ if (!quiet)
+ {
+ Console.WriteLine("CONNECTION CLOSED");
+ }
+
+ break;
+ }
+
+ /* convert to string */
+ char[] str = new char[res];
+ for (i = 0; i < res; i++)
+ {
+ str[i] = (char)buf[i];
+ }
+
+ Console.Write(str);
+ }
+ }
+ else if (!quiet)
+ {
+ SSLUtil.DisplayError(res);
+ }
+
+ /* client was disconnected or the handshake failed. */
+ ssl.Dispose();
+ client_sock.Close();
+ }
+
+ /* ssl_ctx.Dispose(); */
+ }
+
+ /*
+ * do_client()
+ */
+ private void do_client(int build_mode, string[] args)
+ {
+ if (build_mode < axtls.SSL_BUILD_ENABLE_CLIENT)
+ {
+ print_client_options(build_mode, args[1]);
+ }
+
+ int i = 1, res;
+ int port = 4433;
+ bool quiet = false;
+ string password = null;
+ int reconnect = 0;
+ string private_key_file = null;
+ string hostname = "127.0.0.1";
+
+ /* organise the cert/ca_cert lists */
+ int cert_index = 0;
+ int ca_cert_index = 0;
+ int cert_size = SSLUtil.MaxCerts();
+ int ca_cert_size = SSLUtil.MaxCACerts();
+ string[] cert = new string[cert_size];
+ string[] ca_cert = new string[ca_cert_size];
+
+ uint options = axtls.SSL_SERVER_VERIFY_LATER|axtls.SSL_DISPLAY_CERTS;
+ byte[] session_id = null;
+
+ while (i < args.Length)
+ {
+ if (args[i] == "-connect")
+ {
+ string host_port;
+
+ if (i >= args.Length-1)
+ {
+ print_client_options(build_mode, args[i]);
+ }
+
+ host_port = args[++i];
+ int index_colon;
+
+ if ((index_colon = host_port.IndexOf(':')) < 0)
+ print_client_options(build_mode, args[i]);
+
+ hostname = new string(host_port.ToCharArray(),
+ 0, index_colon);
+ port = Int32.Parse(new String(host_port.ToCharArray(),
+ index_colon+1, host_port.Length-index_colon-1));
+ }
+ else if (args[i] == "-cert")
+ {
+ if (i >= args.Length-1 || cert_index >= cert_size)
+ {
+ print_client_options(build_mode, args[i]);
+ }
+
+ cert[cert_index++] = args[++i];
+ }
+ else if (args[i] == "-key")
+ {
+ if (i >= args.Length-1)
+ {
+ print_client_options(build_mode, args[i]);
+ }
+
+ private_key_file = args[++i];
+ options |= axtls.SSL_NO_DEFAULT_KEY;
+ }
+ else if (args[i] == "-CAfile")
+ {
+ if (i >= args.Length-1 || ca_cert_index >= ca_cert_size)
+ {
+ print_client_options(build_mode, args[i]);
+ }
+
+ ca_cert[ca_cert_index++] = args[++i];
+ }
+ else if (args[i] == "-verify")
+ {
+ options &= ~(uint)axtls.SSL_SERVER_VERIFY_LATER;
+ }
+ else if (args[i] == "-reconnect")
+ {
+ reconnect = 4;
+ }
+ else if (args[i] == "-quiet")
+ {
+ quiet = true;
+ options &= ~(uint)axtls.SSL_DISPLAY_CERTS;
+ }
+ else if (args[i] == "-pass")
+ {
+ if (i >= args.Length-1)
+ {
+ print_client_options(build_mode, args[i]);
+ }
+
+ password = args[++i];
+ }
+ else if (build_mode == axtls.SSL_BUILD_FULL_MODE)
+ {
+ if (args[i] == "-debug")
+ {
+ options |= axtls.SSL_DISPLAY_BYTES;
+ }
+ else if (args[i] == "-state")
+ {
+ options |= axtls.SSL_DISPLAY_STATES;
+ }
+ else if (args[i] == "-show-rsa")
+ {
+ options |= axtls.SSL_DISPLAY_RSA;
+ }
+ else
+ print_client_options(build_mode, args[i]);
+ }
+ else /* don't know what this is */
+ print_client_options(build_mode, args[i]);
+
+ i++;
+ }
+
+ // IPHostEntry hostInfo = Dns.Resolve(hostname);
+ IPHostEntry hostInfo = Dns.GetHostEntry(hostname);
+ IPAddress[] addresses = hostInfo.AddressList;
+ IPEndPoint ep = new IPEndPoint(addresses[0], port);
+ Socket client_sock = new Socket(AddressFamily.InterNetwork,
+ SocketType.Stream, ProtocolType.Tcp);
+ client_sock.Connect(ep);
+
+ if (!client_sock.Connected)
+ {
+ Console.WriteLine("could not connect");
+ Environment.Exit(1);
+ }
+
+ if (!quiet)
+ {
+ Console.WriteLine("CONNECTED");
+ }
+
+ /**********************************************************************
+ * This is where the interesting stuff happens. Up until now we've
+ * just been setting up sockets etc. Now we do the SSL handshake.
+ **********************************************************************/
+ SSLClient ssl_ctx = new SSLClient(options,
+ axtls.SSL_DEFAULT_CLNT_SESS);
+
+ if (ssl_ctx == null)
+ {
+ Console.Error.WriteLine("Error: Client context is invalid");
+ Environment.Exit(1);
+ }
+
+ if (private_key_file != null)
+ {
+ int obj_type = axtls.SSL_OBJ_RSA_KEY;
+
+ if (private_key_file.EndsWith(".p8"))
+ obj_type = axtls.SSL_OBJ_PKCS8;
+ else if (private_key_file.EndsWith(".p12"))
+ obj_type = axtls.SSL_OBJ_PKCS12;
+
+ if (ssl_ctx.ObjLoad(obj_type,
+ private_key_file, password) != axtls.SSL_OK)
+ {
+ Console.Error.WriteLine("Private key '" + private_key_file +
+ "' is undefined.");
+ Environment.Exit(1);
+ }
+ }
+
+ for (i = 0; i < cert_index; i++)
+ {
+ if (ssl_ctx.ObjLoad(axtls.SSL_OBJ_X509_CERT,
+ cert[i], null) != axtls.SSL_OK)
+ {
+ Console.WriteLine("Certificate '" + cert[i] +
+ "' is undefined.");
+ Environment.Exit(1);
+ }
+ }
+
+ for (i = 0; i < ca_cert_index; i++)
+ {
+ if (ssl_ctx.ObjLoad(axtls.SSL_OBJ_X509_CACERT,
+ ca_cert[i], null) != axtls.SSL_OK)
+ {
+ Console.WriteLine("Certificate '" + cert[i] +
+ "' is undefined.");
+ Environment.Exit(1);
+ }
+ }
+
+ SSL ssl = new SSL(new IntPtr(0)); /* keep compiler happy */
+
+ /* Try session resumption? */
+ if (reconnect > 0)
+ {
+ while (reconnect-- > 0)
+ {
+ ssl = ssl_ctx.Connect(client_sock, session_id);
+
+ if ((res = ssl.HandshakeStatus()) != axtls.SSL_OK)
+ {
+ if (!quiet)
+ {
+ SSLUtil.DisplayError(res);
+ }
+
+ ssl.Dispose();
+ Environment.Exit(1);
+ }
+
+ display_session_id(ssl);
+ session_id = ssl.GetSessionId();
+
+ if (reconnect > 0)
+ {
+ ssl.Dispose();
+ client_sock.Close();
+
+ /* and reconnect */
+ client_sock = new Socket(AddressFamily.InterNetwork,
+ SocketType.Stream, ProtocolType.Tcp);
+ client_sock.Connect(ep);
+ }
+ }
+ }
+ else
+ {
+ ssl = ssl_ctx.Connect(client_sock, null);
+ }
+
+ /* check the return status */
+ if ((res = ssl.HandshakeStatus()) != axtls.SSL_OK)
+ {
+ if (!quiet)
+ {
+ SSLUtil.DisplayError(res);
+ }
+
+ Environment.Exit(1);
+ }
+
+ if (!quiet)
+ {
+ string common_name =
+ ssl.GetCertificateDN(axtls.SSL_X509_CERT_COMMON_NAME);
+
+ if (common_name != null)
+ {
+ Console.WriteLine("Common Name:\t\t\t" + common_name);
+ }
+
+ display_session_id(ssl);
+ display_cipher(ssl);
+ }
+
+ for (;;)
+ {
+ string user_input = Console.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[i];
+ }
+
+ if ((res = ssl_ctx.Write(ssl, buf, buf.Length)) < axtls.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)
+ {
+ Console.WriteLine("axssl: Error: '" + option +
+ "' is an invalid command.");
+ Console.WriteLine("usage: axssl.csharp [s_server|" +
+ "s_client|version] [args ...]");
+ Environment.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();
+
+ Console.WriteLine("unknown option " + option);
+ Console.WriteLine("usage: s_server [args ...]");
+ Console.WriteLine(" -accept arg\t- port to accept on (default " +
+ "is 4433)");
+ Console.WriteLine(" -quiet\t\t- No server output");
+
+ if (build_mode >= axtls.SSL_BUILD_SERVER_ONLY)
+ {
+ Console.WriteLine(" -cert arg\t- certificate file to add (in " +
+ "addition to default) to chain -");
+ Console.WriteLine("\t\t Can repeat up to " + cert_size + " times");
+ Console.WriteLine(" -key arg\t- Private key file to use");
+ Console.WriteLine(" -pass\t\t- private key file pass phrase source");
+ }
+
+ if (build_mode >= axtls.SSL_BUILD_ENABLE_VERIFICATION)
+ {
+ Console.WriteLine(" -verify\t- turn on peer certificate " +
+ "verification");
+ Console.WriteLine(" -CAfile arg\t- Certificate authority.");
+ Console.WriteLine("\t\t Can repeat up to " +
+ ca_cert_size + "times");
+ }
+
+ if (build_mode == axtls.SSL_BUILD_FULL_MODE)
+ {
+ Console.WriteLine(" -debug\t\t- Print more output");
+ Console.WriteLine(" -state\t\t- Show state messages");
+ Console.WriteLine(" -show-rsa\t- Show RSA state");
+ }
+
+ Environment.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();
+
+ Console.WriteLine("unknown option " + option);
+
+ if (build_mode >= axtls.SSL_BUILD_ENABLE_CLIENT)
+ {
+ Console.WriteLine("usage: s_client [args ...]");
+ Console.WriteLine(" -connect host:port - who to connect to " +
+ "(default is localhost:4433)");
+ Console.WriteLine(" -verify\t- turn on peer certificate " +
+ "verification");
+ Console.WriteLine(" -cert arg\t- certificate file to use");
+ Console.WriteLine("\t\t Can repeat up to %d times", cert_size);
+ Console.WriteLine(" -key arg\t- Private key file to use");
+ Console.WriteLine(" -CAfile arg\t- Certificate authority.");
+ Console.WriteLine("\t\t Can repeat up to " + ca_cert_size +
+ " times");
+ Console.WriteLine(" -quiet\t\t- No client output");
+ Console.WriteLine(" -pass\t\t- private key file pass " +
+ "phrase source");
+ Console.WriteLine(" -reconnect\t- Drop and re-make the " +
+ "connection with the same Session-ID");
+
+ if (build_mode == axtls.SSL_BUILD_FULL_MODE)
+ {
+ Console.WriteLine(" -debug\t\t- Print more output");
+ Console.WriteLine(" -state\t\t- Show state messages");
+ Console.WriteLine(" -show-rsa\t- Show RSA state");
+ }
+ }
+ else
+ {
+ Console.WriteLine("Change configuration to allow this feature");
+ }
+
+ Environment.Exit(1);
+ }
+
+ /**
+ * Display what cipher we are using
+ */
+ private void display_cipher(SSL ssl)
+ {
+ Console.Write("CIPHER is ");
+
+ switch (ssl.GetCipherId())
+ {
+ case axtls.SSL_AES128_SHA:
+ Console.WriteLine("AES128-SHA");
+ break;
+
+ case axtls.SSL_AES256_SHA:
+ Console.WriteLine("AES256-SHA");
+ break;
+
+ case axtls.SSL_RC4_128_SHA:
+ Console.WriteLine("RC4-SHA");
+ break;
+
+ case axtls.SSL_RC4_128_MD5:
+ Console.WriteLine("RC4-MD5");
+ break;
+
+ default:
+ Console.WriteLine("Unknown - " + ssl.GetCipherId());
+ break;
+ }
+ }
+
+ /**
+ * Display what session id we have.
+ */
+ private void display_session_id(SSL ssl)
+ {
+ byte[] session_id = ssl.GetSessionId();
+
+ if (session_id.Length > 0)
+ {
+ Console.WriteLine("-----BEGIN SSL SESSION PARAMETERS-----");
+ foreach (byte b in session_id)
+ {
+ Console.Write("{0:x02}", b);
+ }
+
+ Console.WriteLine("\n-----END SSL SESSION PARAMETERS-----");
+ }
+ }
+}
projects / project / luci.git / blobdiff