2 FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
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5 ***************************************************************************
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7 * FreeRTOS tutorial books are available in pdf and paperback. *
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8 * Complete, revised, and edited pdf reference manuals are also *
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11 * Purchasing FreeRTOS documentation will not only help you, by *
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12 * ensuring you get running as quickly as possible and with an *
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13 * in-depth knowledge of how to use FreeRTOS, it will also help *
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14 * the FreeRTOS project to continue with its mission of providing *
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15 * professional grade, cross platform, de facto standard solutions *
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16 * for microcontrollers - completely free of charge! *
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18 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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20 * Thank you for using FreeRTOS, and thank you for your support! *
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22 ***************************************************************************
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25 This file is part of the FreeRTOS distribution.
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27 FreeRTOS is free software; you can redistribute it and/or modify it under
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28 the terms of the GNU General Public License (version 2) as published by the
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29 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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30 >>>NOTE<<< The modification to the GPL is included to allow you to
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31 distribute a combined work that includes FreeRTOS without being obliged to
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32 provide the source code for proprietary components outside of the FreeRTOS
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33 kernel. FreeRTOS is distributed in the hope that it will be useful, but
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34 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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35 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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36 more details. You should have received a copy of the GNU General Public
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37 License and the FreeRTOS license exception along with FreeRTOS; if not it
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38 can be viewed here: http://www.freertos.org/a00114.html and also obtained
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39 by writing to Richard Barry, contact details for whom are available on the
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44 ***************************************************************************
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46 * Having a problem? Start by reading the FAQ "My application does *
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47 * not run, what could be wrong? *
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49 * http://www.FreeRTOS.org/FAQHelp.html *
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51 ***************************************************************************
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54 http://www.FreeRTOS.org - Documentation, training, latest information,
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55 license and contact details.
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57 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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58 including FreeRTOS+Trace - an indispensable productivity tool.
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60 Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
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61 the code with commercial support, indemnification, and middleware, under
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62 the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
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63 provide a safety engineered and independently SIL3 certified version under
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64 the SafeRTOS brand: http://www.SafeRTOS.com.
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67 #pragma comment( lib, "ws2_32.lib" )
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69 /* Win32 includes. */
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70 #include <WinSock2.h>
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72 /* CyaSSL includes. */
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73 #include "cyassl/ssl.h"
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75 /* Standard includes. */
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79 /* FreeRTOS includes. */
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80 #include "FreeRTOS.h"
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83 /*-----------------------------------------------------------*/
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85 /* The CyaSSL context for the client. */
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86 static CYASSL_CTX* xCyaSSL_ClientContext = NULL;
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88 /*-----------------------------------------------------------*/
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90 /* See the comments at the top of main.c. */
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91 void vSecureTCPClientTask( void *pvParameters )
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93 SOCKET xClientSocket;
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94 struct sockaddr_in xConnection;
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95 CYASSL* xCyaSSL_Object;
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96 WORD wVersionRequested;
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98 uint8_t cString[ 50 ];
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99 portBASE_TYPE lReturned;
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100 uint32_t ulCount = 0UL;
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102 /* Remove compiler warning about unused parameters. */
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103 ( void ) pvParameters;
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105 /* Prepare to use WinSock. */
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106 wVersionRequested = MAKEWORD( 2, 2 );
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107 configASSERT( WSAStartup( wVersionRequested, &xWSAData ) == 0 );
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109 /* Set family and port for client socket. */
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110 memset( ( void * ) &xConnection, 0x00, sizeof( struct sockaddr_in ) );
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111 xConnection.sin_family = AF_INET;
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112 xConnection.sin_addr.s_addr = inet_addr("127.0.0.1");
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113 xConnection.sin_port = htons( configTCP_PORT_NUMBER );
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115 /* Attempt to create a context that uses the TLS V1 server protocol. */
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116 xCyaSSL_ClientContext = CyaSSL_CTX_new( CyaTLSv1_client_method() );
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117 configASSERT( xCyaSSL_ClientContext );
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119 /* Load the CA certificate. */
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120 lReturned = CyaSSL_CTX_load_verify_locations( xCyaSSL_ClientContext, "ca-cert.pem", 0 );
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121 configASSERT( lReturned == SSL_SUCCESS );
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125 /* Create the socket. */
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126 xClientSocket = socket( AF_INET, SOCK_STREAM, 0 );
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127 configASSERT( xClientSocket != INVALID_SOCKET );
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129 /* Connect to the secure server. */
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130 if( connect( xClientSocket, ( SOCKADDR * ) &xConnection, sizeof( xConnection ) ) == 0 )
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132 /* The connect was successful. Create a CyaSSL object to associate
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133 with this connection. */
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134 xCyaSSL_Object = CyaSSL_new( xCyaSSL_ClientContext );
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136 if( xCyaSSL_Object != NULL )
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138 /* Associate the created CyaSSL object with the connected
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140 lReturned = CyaSSL_set_fd( xCyaSSL_Object, xClientSocket );
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141 configASSERT( lReturned == SSL_SUCCESS );
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143 /* The count is used to differentiate between messages sent to
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144 the server, and to break out of the do while loop below. */
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149 /* Create the string that is sent to the secure server. */
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150 sprintf( ( char * ) cString, "Message number %lu\r\n", ulCount );
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152 /* The next line is the secure equivalent of the standard
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154 lReturned = send( xClientSocket, cString, strlen( cString ) + 1, 0 ); */
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155 lReturned = CyaSSL_write( xCyaSSL_Object, ( const char * ) cString, strlen( ( const char * ) cString ) + 1 );
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158 /* Short delay to prevent the messages streaming up the
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159 console too quickly. */
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163 } while( ( lReturned != SOCKET_ERROR ) && ( ulCount < 10UL ) );
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166 CyaSSL_free( xCyaSSL_Object );
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167 closesocket( xClientSocket );
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169 /* Delay for a short time before starting over. */
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174 /*-----------------------------------------------------------*/
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