Add UDP demo running FreeRTOS+TCP (#425)

* Add FreeRTOS+TCP UDP only demo.

* Update folder name and remove old one

* Update the network interface to be used.

* Update headers

* Update header

* Header update and folder name correction

* Remove WinPCap folder
pull/416/head^2
Aniruddha Kanhere 4 years ago committed by GitHub
parent eec68e8790
commit 9a452918d1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -0,0 +1,630 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/******************************************************************************
*
* See the following URL for information on the commands defined in this file:
* http://localhost/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/Ethernet_Related_CLI_Commands.shtml
*
******************************************************************************/
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
/* FreeRTOS+CLI includes. */
#include "FreeRTOS_CLI.h"
/* FreeRTOS+UDP includes, just to make the stats available to the CLI
commands. */
#include "FreeRTOS_UDP_IP.h"
#include "FreeRTOS_Sockets.h"
#ifndef configINCLUDE_TRACE_RELATED_CLI_COMMANDS
#define configINCLUDE_TRACE_RELATED_CLI_COMMANDS 0
#endif
/*
* Implements the run-time-stats command.
*/
static portBASE_TYPE prvTaskStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the task-stats command.
*/
static portBASE_TYPE prvRunTimeStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the echo-three-parameters command.
*/
static portBASE_TYPE prvThreeParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the echo-parameters command.
*/
static portBASE_TYPE prvParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Defines a command that prints out IP address information.
*/
static portBASE_TYPE prvDisplayIPConfig( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Defines a command that prints out the gathered demo debug stats.
*/
static portBASE_TYPE prvDisplayIPDebugStats( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Defines a command that sends an ICMP ping request to an IP address.
*/
static portBASE_TYPE prvPingCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the "trace start" and "trace stop" commands;
*/
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
static portBASE_TYPE prvStartStopTraceCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
#endif
/* Structure that defines the "ip-config" command line command. */
static const CLI_Command_Definition_t xIPConfig =
{
( const int8_t * const ) "ip-config",
( const int8_t * const ) "ip-config:\r\n Displays IP address configuration\r\n\r\n",
prvDisplayIPConfig,
0
};
#if configINCLUDE_DEMO_DEBUG_STATS != 0
/* Structure that defines the "ip-debug-stats" command line command. */
static const CLI_Command_Definition_t xIPDebugStats =
{
( const int8_t * const ) "ip-debug-stats", /* The command string to type. */
( const int8_t * const ) "ip-debug-stats:\r\n Shows some IP stack stats useful for debug - an example only.\r\n\r\n",
prvDisplayIPDebugStats, /* The function to run. */
0 /* No parameters are expected. */
};
#endif /* configINCLUDE_DEMO_DEBUG_STATS */
/* Structure that defines the "run-time-stats" command line command. This
generates a table that shows how much run time each task has */
static const CLI_Command_Definition_t xRunTimeStats =
{
( const int8_t * const ) "run-time-stats", /* The command string to type. */
( const int8_t * const ) "run-time-stats:\r\n Displays a table showing how much processing time each FreeRTOS task has used\r\n\r\n",
prvRunTimeStatsCommand, /* The function to run. */
0 /* No parameters are expected. */
};
/* Structure that defines the "task-stats" command line command. This generates
a table that gives information on each task in the system. */
static const CLI_Command_Definition_t xTaskStats =
{
( const int8_t * const ) "task-stats", /* The command string to type. */
( const int8_t * const ) "task-stats:\r\n Displays a table showing the state of each FreeRTOS task\r\n\r\n",
prvTaskStatsCommand, /* The function to run. */
0 /* No parameters are expected. */
};
/* Structure that defines the "echo_3_parameters" command line command. This
takes exactly three parameters that the command simply echos back one at a
time. */
static const CLI_Command_Definition_t xThreeParameterEcho =
{
( const int8_t * const ) "echo-3-parameters",
( const int8_t * const ) "echo-3-parameters <param1> <param2> <param3>:\r\n Expects three parameters, echos each in turn\r\n\r\n",
prvThreeParameterEchoCommand, /* The function to run. */
3 /* Three parameters are expected, which can take any value. */
};
/* Structure that defines the "echo_parameters" command line command. This
takes a variable number of parameters that the command simply echos back one at
a time. */
static const CLI_Command_Definition_t xParameterEcho =
{
( const int8_t * const ) "echo-parameters",
( const int8_t * const ) "echo-parameters <...>:\r\n Take variable number of parameters, echos each in turn\r\n\r\n",
prvParameterEchoCommand, /* The function to run. */
-1 /* The user can enter any number of commands. */
};
#if ipconfigSUPPORT_OUTGOING_PINGS == 1
/* Structure that defines the "ping" command line command. This takes an IP
address or host name and (optionally) the number of bytes to ping as
parameters. */
static const CLI_Command_Definition_t xPing =
{
( const int8_t * const ) "ping",
( const int8_t * const ) "ping <ipaddress> <optional:bytes to send>:\r\n for example, ping 192.168.0.3 8, or ping www.example.com\r\n\r\n",
prvPingCommand, /* The function to run. */
-1 /* Ping can take either one or two parameter, so the number of parameters has to be determined by the ping command implementation. */
};
#endif /* ipconfigSUPPORT_OUTGOING_PINGS */
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
/* Structure that defines the "trace" command line command. This takes a single
parameter, which can be either "start" or "stop". */
static const CLI_Command_Definition_t xStartStopTrace =
{
( const int8_t * const ) "trace",
( const int8_t * const ) "trace [start | stop]:\r\n Starts or stops a trace recording for viewing in FreeRTOS+Trace\r\n\r\n",
prvStartStopTraceCommand, /* The function to run. */
1 /* One parameter is expected. Valid values are "start" and "stop". */
};
#endif /* configINCLUDE_TRACE_RELATED_CLI_COMMANDS */
/*-----------------------------------------------------------*/
void vRegisterCLICommands( void )
{
/* Register all the command line commands defined immediately above. */
FreeRTOS_CLIRegisterCommand( &xTaskStats );
FreeRTOS_CLIRegisterCommand( &xRunTimeStats );
FreeRTOS_CLIRegisterCommand( &xThreeParameterEcho );
FreeRTOS_CLIRegisterCommand( &xParameterEcho );
FreeRTOS_CLIRegisterCommand( &xIPConfig );
#if ipconfigSUPPORT_OUTGOING_PINGS == 1
{
FreeRTOS_CLIRegisterCommand( &xPing );
}
#endif /* ipconfigSUPPORT_OUTGOING_PINGS */
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
FreeRTOS_CLIRegisterCommand( & xStartStopTrace );
#endif
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvTaskStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
const int8_t *const pcHeader = ( int8_t * ) "Task State Priority Stack #\r\n************************************************\r\n";
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Generate a table of task stats. */
strcpy( ( char * ) pcWriteBuffer, ( char * ) pcHeader );
vTaskList( pcWriteBuffer + strlen( ( char * ) pcHeader ) );
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvRunTimeStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
const int8_t * const pcHeader = ( int8_t * ) "Task Abs Time % Time\r\n****************************************\r\n";
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Generate a table of task stats. */
strcpy( ( char * ) pcWriteBuffer, ( char * ) pcHeader );
#if ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
vTaskGetRunTimeStats( pcWriteBuffer + strlen( ( char * ) pcHeader ) );
#endif
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvThreeParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t *pcParameter;
portBASE_TYPE xParameterStringLength, xReturn;
static portBASE_TYPE lParameterNumber = 0;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
if( lParameterNumber == 0 )
{
/* The first time the function is called after the command has been
entered just a header string is returned. */
sprintf( ( char * ) pcWriteBuffer, "The three parameters were:\r\n" );
/* Next time the function is called the first parameter will be echoed
back. */
lParameterNumber = 1L;
/* There is more data to be returned as no parameters have been echoed
back yet. */
xReturn = pdPASS;
}
else
{
/* Obtain the parameter string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
lParameterNumber, /* Return the next parameter. */
&xParameterStringLength /* Store the parameter string length. */
);
/* Sanity check something was returned. */
configASSERT( pcParameter );
/* Return the parameter string. */
memset( pcWriteBuffer, 0x00, xWriteBufferLen );
sprintf( ( char * ) pcWriteBuffer, "%d: ", ( int ) lParameterNumber );
strncat( ( char * ) pcWriteBuffer, ( const char * ) pcParameter, xParameterStringLength );
strncat( ( char * ) pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
/* If this is the last of the three parameters then there are no more
strings to return after this one. */
if( lParameterNumber == 3L )
{
/* If this is the last of the three parameters then there are no more
strings to return after this one. */
xReturn = pdFALSE;
lParameterNumber = 0L;
}
else
{
/* There are more parameters to return after this one. */
xReturn = pdTRUE;
lParameterNumber++;
}
}
return xReturn;
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t *pcParameter;
portBASE_TYPE xParameterStringLength, xReturn;
static portBASE_TYPE lParameterNumber = 0;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
if( lParameterNumber == 0 )
{
/* The first time the function is called after the command has been
entered just a header string is returned. */
sprintf( ( char * ) pcWriteBuffer, "The parameters were:\r\n" );
/* Next time the function is called the first parameter will be echoed
back. */
lParameterNumber = 1L;
/* There is more data to be returned as no parameters have been echoed
back yet. */
xReturn = pdPASS;
}
else
{
/* Obtain the parameter string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
lParameterNumber, /* Return the next parameter. */
&xParameterStringLength /* Store the parameter string length. */
);
if( pcParameter != NULL )
{
/* Return the parameter string. */
memset( pcWriteBuffer, 0x00, xWriteBufferLen );
sprintf( ( char * ) pcWriteBuffer, "%d: ", ( int ) lParameterNumber );
strncat( ( char * ) pcWriteBuffer, ( const char * ) pcParameter, xParameterStringLength );
strncat( ( char * ) pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
/* There might be more parameters to return after this one. */
xReturn = pdTRUE;
lParameterNumber++;
}
else
{
/* No more parameters were found. Make sure the write buffer does
not contain a valid string. */
pcWriteBuffer[ 0 ] = 0x00;
/* No more data to return. */
xReturn = pdFALSE;
/* Start over the next time this command is executed. */
lParameterNumber = 0;
}
}
return xReturn;
}
/*-----------------------------------------------------------*/
#if ipconfigSUPPORT_OUTGOING_PINGS == 1
static portBASE_TYPE prvPingCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t * pcParameter;
portBASE_TYPE lParameterStringLength, xReturn;
uint32_t ulIPAddress, ulBytesToPing;
const uint32_t ulDefaultBytesToPing = 8UL;
int8_t cBuffer[ 16 ];
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Start with an empty string. */
pcWriteBuffer[ 0 ] = 0x00;
/* Obtain the number of bytes to ping. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
2, /* Return the second parameter. */
&lParameterStringLength /* Store the parameter string length. */
);
if( pcParameter == NULL )
{
/* The number of bytes was not specified, so default it. */
ulBytesToPing = ulDefaultBytesToPing;
}
else
{
ulBytesToPing = atol( ( const char * ) pcParameter );
}
/* Obtain the IP address string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
1, /* Return the first parameter. */
&lParameterStringLength /* Store the parameter string length. */
);
/* Sanity check something was returned. */
configASSERT( pcParameter );
/* Attempt to obtain the IP address. If the first character is not a
digit, assume the host name has been passed in. */
if( ( *pcParameter >= '0' ) && ( *pcParameter <= '9' ) )
{
ulIPAddress = FreeRTOS_inet_addr( ( const uint8_t * ) pcParameter );
}
else
{
/* Terminate the host name. */
pcParameter[ lParameterStringLength ] = 0x00;
/* Attempt to resolve host. */
ulIPAddress = FreeRTOS_gethostbyname( ( uint8_t * ) pcParameter );
}
/* Convert IP address, which may have come from a DNS lookup, to string. */
FreeRTOS_inet_ntoa( ulIPAddress, ( char * ) cBuffer );
if( ulIPAddress != 0 )
{
xReturn = FreeRTOS_SendPingRequest( ulIPAddress, ( uint16_t ) ulBytesToPing, portMAX_DELAY );
}
else
{
xReturn = pdFALSE;
}
if( xReturn == pdFALSE )
{
sprintf( ( char * ) pcWriteBuffer, "%s", "Could not send ping request\r\n" );
}
else
{
sprintf( ( char * ) pcWriteBuffer, "Ping sent to %s with identifier %d\r\n", cBuffer, xReturn );
}
return pdFALSE;
}
/*-----------------------------------------------------------*/
#endif /* ipconfigSUPPORT_OUTGOING_PINGS */
#if configINCLUDE_DEMO_DEBUG_STATS != 0
static portBASE_TYPE prvDisplayIPDebugStats( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
static portBASE_TYPE xIndex = -1;
extern xExampleDebugStatEntry_t xIPTraceValues[];
portBASE_TYPE xReturn;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
xIndex++;
if( xIndex < xExampleDebugStatEntries() )
{
sprintf( ( char * ) pcWriteBuffer, "%s %d\r\n", ( char * ) xIPTraceValues[ xIndex ].pucDescription, ( int ) xIPTraceValues[ xIndex ].ulData );
xReturn = pdPASS;
}
else
{
/* Reset the index for the next time it is called. */
xIndex = -1;
/* Ensure nothing remains in the write buffer. */
pcWriteBuffer[ 0 ] = 0x00;
xReturn = pdFALSE;
}
return xReturn;
}
/*-----------------------------------------------------------*/
#endif /* configINCLUDE_DEMO_DEBUG_STATS */
static portBASE_TYPE prvDisplayIPConfig( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
static portBASE_TYPE xIndex = 0;
portBASE_TYPE xReturn;
uint32_t ulAddress;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
switch( xIndex )
{
case 0 :
FreeRTOS_GetAddressConfiguration( &ulAddress, NULL, NULL, NULL );
sprintf( ( char * ) pcWriteBuffer, "\r\nIP address " );
xReturn = pdTRUE;
xIndex++;
break;
case 1 :
FreeRTOS_GetAddressConfiguration( NULL, &ulAddress, NULL, NULL );
sprintf( ( char * ) pcWriteBuffer, "\r\nNet mask " );
xReturn = pdTRUE;
xIndex++;
break;
case 2 :
FreeRTOS_GetAddressConfiguration( NULL, NULL, &ulAddress, NULL );
sprintf( ( char * ) pcWriteBuffer, "\r\nGateway address " );
xReturn = pdTRUE;
xIndex++;
break;
case 3 :
FreeRTOS_GetAddressConfiguration( NULL, NULL, NULL, &ulAddress );
sprintf( ( char * ) pcWriteBuffer, "\r\nDNS server address " );
xReturn = pdTRUE;
xIndex++;
break;
default :
ulAddress = 0;
sprintf( ( char * ) pcWriteBuffer, "\r\n\r\n" );
xReturn = pdFALSE;
xIndex = 0;
break;
}
if( ulAddress != 0 )
{
FreeRTOS_inet_ntoa( ulAddress, ( ( char * ) &( pcWriteBuffer[ strlen( ( char * ) pcWriteBuffer ) ] ) ) );
}
return xReturn;
}
/*-----------------------------------------------------------*/
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
static portBASE_TYPE prvStartStopTraceCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t *pcParameter;
portBASE_TYPE lParameterStringLength;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Obtain the parameter string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
1, /* Return the first parameter. */
&lParameterStringLength /* Store the parameter string length. */
);
/* Sanity check something was returned. */
configASSERT( pcParameter );
/* There are only two valid parameter values. */
if( strncmp( ( const char * ) pcParameter, "start", strlen( "start" ) ) == 0 )
{
/* Start or restart the trace. */
vTraceStop();
vTraceClear();
vTraceStart();
sprintf( ( char * ) pcWriteBuffer, "Trace recording (re)started.\r\n" );
}
else if( strncmp( ( const char * ) pcParameter, "stop", strlen( "stop" ) ) == 0 )
{
/* End the trace, if one is running. */
vTraceStop();
sprintf( ( char * ) pcWriteBuffer, "Stopping trace recording.\r\n" );
}
else
{
sprintf( ( char * ) pcWriteBuffer, "Valid parameters are 'start' and 'stop'.\r\n" );
}
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
#endif /* configINCLUDE_TRACE_RELATED_CLI_COMMANDS */

@ -0,0 +1,352 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
/* FreeRTOS+UDP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
#define simpTINY_DELAY ( ( portTickType ) 2 )
/*
* Uses a socket to send data without using the zero copy option.
* prvSimpleServerTask() will receive the data.
*/
static void prvSimpleClientTask( void *pvParameters );
/*
* Uses a socket to receive the data sent by the prvSimpleClientTask() task.
* Does not use the zero copy option.
*/
static void prvSimpleServerTask( void *pvParameters );
/*
* Uses a socket to send data using the zero copy option.
* prvSimpleZeroCopyServerTask() will receive the data.
*/
static void prvSimpleZeroCopyUDPClientTask( void *pvParameters );
/*
* Uses a socket to receive the data sent by the prvSimpleZeroCopyUDPClientTask()
* task. Uses the zero copy option.
*/
static void prvSimpleZeroCopyServerTask( void *pvParameters );
/*-----------------------------------------------------------*/
void vStartSimpleUDPClientServerTasks( uint16_t usStackSize, uint32_t ulPort, unsigned portBASE_TYPE uxPriority )
{
/* Create the client and server tasks that do not use the zero copy
interface. */
xTaskCreate( prvSimpleClientTask, "SimpCpyClnt", usStackSize, ( void * ) ulPort, uxPriority, NULL );
xTaskCreate( prvSimpleServerTask, "SimpCpySrv", usStackSize, ( void * ) ulPort, uxPriority + 1, NULL );
/* Create the client and server tasks that do use the zero copy interface. */
xTaskCreate( prvSimpleZeroCopyUDPClientTask, "SimpZCpyClnt", usStackSize, ( void * ) ( ulPort + 1 ), uxPriority, NULL );
xTaskCreate( prvSimpleZeroCopyServerTask, "SimpZCpySrv", usStackSize, ( void * ) ( ulPort + 1 ), uxPriority + 1, NULL );
}
/*-----------------------------------------------------------*/
static void prvSimpleClientTask( void *pvParameters )
{
Socket_t xClientSocket;
struct freertos_sockaddr xDestinationAddress;
uint8_t cString[ 50 ];
portBASE_TYPE lReturned;
uint32_t ulCount = 0UL, ulIPAddress;
const uint32_t ulLoopsPerSocket = 10UL;
const portTickType x150ms = 150UL / portTICK_RATE_MS;
/* Remove compiler warning about unused parameters. */
( void ) pvParameters;
/* It is assumed that this task is not created until the network is up,
so the IP address can be obtained immediately. store the IP address being
used in ulIPAddress. This is done so the socket can send to a different
port on the same IP address. */
FreeRTOS_GetAddressConfiguration( &ulIPAddress, NULL, NULL, NULL );
/* This test sends to itself, so data sent from here is received by a server
socket on the same IP address. Setup the freertos_sockaddr structure with
this nodes IP address, and the port number being sent to. The strange
casting is to try and remove compiler warnings on 32 bit machines. */
xDestinationAddress.sin_addr = ulIPAddress;
xDestinationAddress.sin_port = ( uint16_t ) ( ( uint32_t ) pvParameters ) & 0xffffUL;
xDestinationAddress.sin_port = FreeRTOS_htons( xDestinationAddress.sin_port );
for( ;; )
{
/* Create the socket. */
xClientSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
configASSERT( xClientSocket != FREERTOS_INVALID_SOCKET );
/* The count is used to differentiate between different messages sent to
the server, and to break out of the do while loop below. */
ulCount = 0UL;
do
{
/* Create the string that is sent to the server. */
sprintf( ( char * ) cString, "Server received (not zero copy): Message number %lu\r\n", ulCount );
/* Send the string to the socket. ulFlags is set to 0, so the zero
copy option is not selected. That means the data from cString[] is
copied into a network buffer inside FreeRTOS_sendto(), and cString[]
can be reused as soon as FreeRTOS_sendto() has returned. */
lReturned = FreeRTOS_sendto( xClientSocket, ( void * ) cString, strlen( ( const char * ) cString ), 0, &xDestinationAddress, sizeof( xDestinationAddress ) );
ulCount++;
} while( ( lReturned != FREERTOS_SOCKET_ERROR ) && ( ulCount < ulLoopsPerSocket ) );
FreeRTOS_closesocket( xClientSocket );
/* A short delay to prevent the messages printed by the server task
scrolling off the screen too quickly, and to prevent reduce the network
loading. */
vTaskDelay( x150ms );
}
}
/*-----------------------------------------------------------*/
static void prvSimpleServerTask( void *pvParameters )
{
long lBytes;
uint8_t cReceivedString[ 60 ];
struct freertos_sockaddr xClient, xBindAddress;
uint32_t xClientLength = sizeof( xClient );
Socket_t xListeningSocket;
/* Just to prevent compiler warnings. */
( void ) pvParameters;
/* Attempt to open the socket. */
xListeningSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
configASSERT( xListeningSocket != FREERTOS_INVALID_SOCKET );
/* This test receives data sent from a different port on the same IP
address. Configure the freertos_sockaddr structure with the address being
bound to. The strange casting is to try and remove compiler warnings on 32
bit machines. Note that this task is only created after the network is up,
so the IP address is valid here. */
xBindAddress.sin_port = ( uint16_t ) ( ( uint32_t ) pvParameters ) & 0xffffUL;
xBindAddress.sin_port = FreeRTOS_htons( xBindAddress.sin_port );
/* Bind the socket to the port that the client task will send to. */
FreeRTOS_bind( xListeningSocket, &xBindAddress, sizeof( xBindAddress ) );
for( ;; )
{
/* Zero out the receive array so there is NULL at the end of the string
when it is printed out. */
memset( cReceivedString, 0x00, sizeof( cReceivedString ) );
/* Receive data on the socket. ulFlags is zero, so the zero copy option
is not set and the received data is copied into the buffer pointed to by
cReceivedString. By default the block time is portMAX_DELAY.
xClientLength is not actually used by FreeRTOS_recvfrom(), but is set
appropriately in case future versions do use it. */
lBytes = FreeRTOS_recvfrom( xListeningSocket, cReceivedString, sizeof( cReceivedString ), 0, &xClient, &xClientLength );
/* Print the received characters. */
if( lBytes > 0 )
{
FreeRTOS_debug_printf( ( ( char * ) cReceivedString ) );
}
/* Error check. */
configASSERT( lBytes == ( portBASE_TYPE ) strlen( ( const char * ) cReceivedString ) );
}
}
/*-----------------------------------------------------------*/
static void prvSimpleZeroCopyUDPClientTask( void *pvParameters )
{
Socket_t xClientSocket;
uint8_t *pucUDPPayloadBuffer;
struct freertos_sockaddr xDestinationAddress;
portBASE_TYPE lReturned;
uint32_t ulCount = 0UL, ulIPAddress;
const uint32_t ulLoopsPerSocket = 10UL;
const uint8_t *pucStringToSend = ( const uint8_t * ) "Server received (using zero copy): Message number ";
const portTickType x150ms = 150UL / portTICK_RATE_MS;
/* 15 is added to ensure the number, \r\n and terminating zero fit. */
const size_t xStringLength = strlen( ( char * ) pucStringToSend ) + 15;
/* Remove compiler warning about unused parameters. */
( void ) pvParameters;
/* It is assumed that this task is not created until the network is up,
so the IP address can be obtained immediately. store the IP address being
used in ulIPAddress. This is done so the socket can send to a different
port on the same IP address. */
FreeRTOS_GetAddressConfiguration( &ulIPAddress, NULL, NULL, NULL );
/* This test sends to itself, so data sent from here is received by a server
socket on the same IP address. Setup the freertos_sockaddr structure with
this nodes IP address, and the port number being sent to. The strange
casting is to try and remove compiler warnings on 32 bit machines. */
xDestinationAddress.sin_addr = ulIPAddress;
xDestinationAddress.sin_port = ( uint16_t ) ( ( uint32_t ) pvParameters ) & 0xffffUL;
xDestinationAddress.sin_port = FreeRTOS_htons( xDestinationAddress.sin_port );
for( ;; )
{
/* Create the socket. */
xClientSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
configASSERT( xClientSocket != FREERTOS_INVALID_SOCKET );
/* The count is used to differentiate between different messages sent to
the server, and to break out of the do while loop below. */
ulCount = 0UL;
do
{
/* This task is going to send using the zero copy interface. The
data being sent is therefore written directly into a buffer that is
passed into, rather than copied into, the FreeRTOS_sendto()
function.
First obtain a buffer of adequate length from the IP stack into which
the string will be written. Although a max delay is used, the actual
delay will be capped to ipconfigMAX_SEND_BLOCK_TIME_TICKS, hence
the do while loop is used to ensure a buffer is obtained. */
do
{
} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xStringLength, portMAX_DELAY ) ) == NULL );
/* A buffer was successfully obtained. Create the string that is
sent to the server. First the string is filled with zeros as this will
effectively be the null terminator when the string is received at the other
end. Note that the string is being written directly into the buffer
obtained from the IP stack above. */
memset( ( void * ) pucUDPPayloadBuffer, 0x00, xStringLength );
sprintf( ( char * ) pucUDPPayloadBuffer, "%s%lu\r\n", ( char * ) pucStringToSend, ulCount );
/* Pass the buffer into the send function. ulFlags has the
FREERTOS_ZERO_COPY bit set so the IP stack will take control of the
buffer rather than copy data out of the buffer. */
lReturned = FreeRTOS_sendto( xClientSocket, /* The socket being sent to. */
( void * ) pucUDPPayloadBuffer, /* A pointer to the the data being sent. */
strlen( ( const char * ) pucUDPPayloadBuffer ) + 1, /* The length of the data being sent - including the string's null terminator. */
FREERTOS_ZERO_COPY, /* ulFlags with the FREERTOS_ZERO_COPY bit set. */
&xDestinationAddress, /* Where the data is being sent. */
sizeof( xDestinationAddress ) );
if( lReturned == 0 )
{
/* The send operation failed, so this task is still responsible
for the buffer obtained from the IP stack. To ensure the buffer
is not lost it must either be used again, or, as in this case,
returned to the IP stack using FreeRTOS_ReleaseUDPPayloadBuffer().
pucUDPPayloadBuffer can be safely re-used after this call. */
FreeRTOS_ReleaseUDPPayloadBuffer( ( void * ) pucUDPPayloadBuffer );
}
else
{
/* The send was successful so the IP stack is now managing the
buffer pointed to by pucUDPPayloadBuffer, and the IP stack will
return the buffer once it has been sent. pucUDPPayloadBuffer can
be safely re-used. */
}
ulCount++;
} while( ( lReturned != FREERTOS_SOCKET_ERROR ) && ( ulCount < ulLoopsPerSocket ) );
FreeRTOS_closesocket( xClientSocket );
/* A short delay to prevent the messages scrolling off the screen too
quickly. */
vTaskDelay( x150ms );
}
}
/*-----------------------------------------------------------*/
static void prvSimpleZeroCopyServerTask( void *pvParameters )
{
int32_t lBytes;
uint8_t *pucUDPPayloadBuffer;
struct freertos_sockaddr xClient, xBindAddress;
uint32_t xClientLength = sizeof( xClient ), ulIPAddress;
Socket_t xListeningSocket;
/* Just to prevent compiler warnings. */
( void ) pvParameters;
/* Attempt to open the socket. */
xListeningSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
configASSERT( xListeningSocket != FREERTOS_INVALID_SOCKET );
/* This test receives data sent from a different port on the same IP address.
Obtain the nodes IP address. Configure the freertos_sockaddr structure with
the address being bound to. The strange casting is to try and remove
compiler warnings on 32 bit machines. Note that this task is only created
after the network is up, so the IP address is valid here. */
FreeRTOS_GetAddressConfiguration( &ulIPAddress, NULL, NULL, NULL );
xBindAddress.sin_addr = ulIPAddress;
xBindAddress.sin_port = ( uint16_t ) ( ( uint32_t ) pvParameters ) & 0xffffUL;
xBindAddress.sin_port = FreeRTOS_htons( xBindAddress.sin_port );
/* Bind the socket to the port that the client task will send to. */
FreeRTOS_bind( xListeningSocket, &xBindAddress, sizeof( xBindAddress ) );
for( ;; )
{
/* Receive data on the socket. ulFlags has the zero copy bit set
(FREERTOS_ZERO_COPY) indicating to the stack that a reference to the
received data should be passed out to this task using the second
parameter to the FreeRTOS_recvfrom() call. When this is done the
IP stack is no longer responsible for releasing the buffer, and
the task *must* return the buffer to the stack when it is no longer
needed. By default the block time is portMAX_DELAY. */
lBytes = FreeRTOS_recvfrom( xListeningSocket, ( void * ) &pucUDPPayloadBuffer, 0, FREERTOS_ZERO_COPY, &xClient, &xClientLength );
/* It is expected to receive one more byte than the string length as
the NULL terminator is also transmitted. */
configASSERT( lBytes == ( ( portBASE_TYPE ) strlen( ( const char * ) pucUDPPayloadBuffer ) + 1 ) );
/* Print the received characters. */
if( lBytes > 0 )
{
FreeRTOS_debug_printf( ( ( char * ) pucUDPPayloadBuffer ) );
}
if( lBytes >= 0 )
{
/* The buffer *must* be freed once it is no longer needed. */
FreeRTOS_ReleaseUDPPayloadBuffer( pucUDPPayloadBuffer );
}
}
}

@ -0,0 +1,397 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/******************************************************************************
*
* See the following web page for essential TwoEchoClient.c usage and
* configuration details:
* http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/Common_Echo_Clients.shtml
*
******************************************************************************/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
/* FreeRTOS+UDP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Small delay used between attempts to obtain a zero copy buffer. */
#define echoTINY_DELAY ( ( portTickType ) 2 )
/* The echo tasks create a socket, send out a number of echo requests
(listening for each echo reply), then close the socket again before
starting over. This delay is used between each iteration to ensure the
network does not get too congested. The delay is shorter when the Windows
simulator is used because simulated time is slower than real time. */
#ifdef _WINDOWS_
#define echoLOOP_DELAY ( ( portTickType ) 10 / portTICK_RATE_MS )
#else
#define echoLOOP_DELAY ( ( portTickType ) 150 / portTICK_RATE_MS )
#endif /* _WINDOWS_ */
#if ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1
/* When the trace recorder code is included user events are generated to
mark the sending and receiving of the echoed data (only in the zero copy
task. */
#define echoMARK_SEND_IN_TRACE_BUFFER( x ) vTraceUserEvent( x )
traceLabel xZeroCopySendEvent, xZeroCopyReceiveEvent;
#else
/* When the trace recorder code is not included just #define away the call
to post the user event. */
#define echoMARK_SEND_IN_TRACE_BUFFER( x )
#define xZeroCopySendEvent 0
#define xZeroCopyReceiveEvent 0
#endif
/* The echo server is assumed to be on port 7, which is the standard echo
protocol port. */
#define echoECHO_PORT ( 8080 )
/*
* Uses a socket to send data to, then receive data from, the standard echo
* port number 7. prvEchoClientTask() uses the standard interface.
* prvZeroCopyEchoClientTask() uses the zero copy interface.
*/
static void prvEchoClientTask( void *pvParameters );
static void prvZeroCopyEchoClientTask( void *pvParameters );
/* The receive timeout is set shorter when the windows simulator is used
because simulated time is slower than real time. */
#ifdef _WINDOWS_
const portTickType xReceiveTimeOut = 500 / portTICK_RATE_MS;
#else
const portTickType xReceiveTimeOut = 1000 / portTICK_RATE_MS;
#endif
/*-----------------------------------------------------------*/
void vStartEchoClientTasks( uint16_t usTaskStackSize, unsigned portBASE_TYPE uxTaskPriority )
{
/* Create the echo client task that does not use the zero copy interface. */
xTaskCreate( prvEchoClientTask, /* The function that implements the task. */
( const signed char * const ) "Echo0", /* Just a text name for the task to aid debugging. */
usTaskStackSize, /* The stack size is defined in FreeRTOSIPConfig.h. */
NULL, /* The task parameter, not used in this case. */
uxTaskPriority, /* The priority assigned to the task is defined in FreeRTOSConfig.h. */
NULL ); /* The task handle is not used. */
/* Create the echo client task that does use the zero copy interface. */
xTaskCreate( prvZeroCopyEchoClientTask, /* The function that implements the task. */
( const signed char * const ) "Echo1", /* Just a text name for the task to aid debugging. */
usTaskStackSize, /* The stack size is defined in FreeRTOSIPConfig.h. */
NULL, /* The task parameter, not used in this case. */
uxTaskPriority, /* The priority assigned to the task is defined in FreeRTOSConfig.h. */
NULL ); /* The task handle is not used. */
}
/*-----------------------------------------------------------*/
static void prvEchoClientTask( void *pvParameters )
{
Socket_t xSocket;
struct freertos_sockaddr xEchoServerAddress;
int8_t cTxString[ 25 ], cRxString[ 25 ]; /* Make sure the stack is large enough to hold these. Turn on stack overflow checking during debug to be sure. */
int32_t lLoopCount = 0UL;
int32_t lReturned;
const int32_t lMaxLoopCount = 50;
volatile uint32_t ulRxCount = 0UL, ulTxCount = 0UL;
uint32_t xAddressLength = sizeof( xEchoServerAddress );
/* Remove compiler warning about unused parameters. */
( void ) pvParameters;
/* Echo requests are sent to the echo server. The address of the echo
server is configured by the constants configECHO_SERVER_ADDR0 to
configECHO_SERVER_ADDR3 in FreeRTOSConfig.h. */
xEchoServerAddress.sin_port = FreeRTOS_htons( echoECHO_PORT );
xEchoServerAddress.sin_addr = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0,
configECHO_SERVER_ADDR1,
configECHO_SERVER_ADDR2,
configECHO_SERVER_ADDR3 );
for( ;; )
{
/* Create a socket. */
xSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
configASSERT( xSocket != FREERTOS_INVALID_SOCKET );
/* Set a time out so a missing reply does not cause the task to block
indefinitely. */
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
/* Send a number of echo requests. */
for( lLoopCount = 0; lLoopCount < lMaxLoopCount; lLoopCount++ )
{
/* Create the string that is sent to the echo server. */
sprintf( ( char * ) cTxString, "Message number %u\r\n", ulTxCount );
/* Send the string to the socket. ulFlags is set to 0, so the zero
copy interface is not used. That means the data from cTxString is
copied into a network buffer inside FreeRTOS_sendto(), and cTxString
can be reused as soon as FreeRTOS_sendto() has returned. 1 is added
to ensure the NULL string terminator is sent as part of the message. */
lReturned = FreeRTOS_sendto( xSocket, /* The socket being sent to. */
( void * ) cTxString, /* The data being sent. */
strlen( ( const char * ) cTxString ) + 1, /* The length of the data being sent. */
0, /* ulFlags with the FREERTOS_ZERO_COPY bit clear. */
&xEchoServerAddress, /* The destination address. */
sizeof( xEchoServerAddress ) );
if( lReturned == 0 )
{
/* The send operation failed. */
}
else
{
/* The send was successful. */
FreeRTOS_debug_printf( ( "[Echo Client] Data sent... \r\n" ) );
}
/* Keep a count of how many echo requests have been transmitted so
it can be compared to the number of echo replies received. It would
be expected to loose at least one to an ARP message the first time
the connection is created. */
ulTxCount++;
/* Receive data echoed back to the socket. ulFlags is zero, so the
zero copy option is not being used and the received data will be
copied into the buffer pointed to by cRxString. xAddressLength is
not actually used (at the time of writing this comment, anyway) by
FreeRTOS_recvfrom(), but is set appropriately in case future
versions do use it. */
memset( ( void * ) cRxString, 0x00, sizeof( cRxString ) );
lReturned = FreeRTOS_recvfrom( xSocket, /* The socket being received from. */
cRxString, /* The buffer into which the received data will be written. */
sizeof( cRxString ), /* The size of the buffer provided to receive the data. */
0, /* ulFlags with the FREERTOS_ZERO_COPY bit clear. */
&xEchoServerAddress, /* The address from where the data was sent (the source address). */
&xAddressLength );
if( lReturned > 0 )
{
/* Compare the transmitted string to the received string. */
if( strcmp( ( char * ) cRxString, ( char * ) cTxString ) == 0 )
{
/* The echo reply was received without error. */
ulRxCount++;
FreeRTOS_debug_printf( ( "[Echo Client] Data was received correctly.\r\n" ) );
}
else
{
FreeRTOS_debug_printf( ( "[Echo Client] Data received was erreneous.\r\n" ) );
}
}
else
{
FreeRTOS_debug_printf( ( "[Echo Client] Data was not received\r\n" ) );
}
}
/* Pause for a short while to ensure the network is not too
congested. */
vTaskDelay( echoLOOP_DELAY );
/* Close this socket before looping back to create another. */
FreeRTOS_closesocket( xSocket );
}
}
/*-----------------------------------------------------------*/
static void prvZeroCopyEchoClientTask( void *pvParameters )
{
Socket_t xSocket;
struct freertos_sockaddr xEchoServerAddress;
static int8_t cTxString[ 40 ];
int32_t lLoopCount = 0UL;
volatile uint32_t ulRxCount = 0UL, ulTxCount = 0UL;
uint32_t xAddressLength = sizeof( xEchoServerAddress );
int32_t lReturned;
uint8_t *pucUDPPayloadBuffer;
const int32_t lMaxLoopCount = 50;
const uint8_t * const pucStringToSend = ( const uint8_t * const ) "Zero copy message number";
/* The buffer is large enough to hold the string, a number, and the string terminator. */
const size_t xBufferLength = strlen( ( char * ) pucStringToSend ) + 15;
#if ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1
{
/* When the trace recorder code is included user events are generated to
mark the sending and receiving of the echoed data (only in the zero copy
task). */
xZeroCopySendEvent = xTraceOpenLabel( "ZeroCopyTx" );
xZeroCopyReceiveEvent = xTraceOpenLabel( "ZeroCopyRx" );
}
#endif /* ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS */
/* Remove compiler warning about unused parameters. */
( void ) pvParameters;
/* Delay for a little while to ensure the task is out of synch with the
other echo task implemented above. */
vTaskDelay( echoLOOP_DELAY >> 1 );
/* Echo requests are sent to the echo server. The address of the echo
server is configured by the constants configECHO_SERVER_ADDR0 to
configECHO_SERVER_ADDR3 in FreeRTOSConfig.h. */
xEchoServerAddress.sin_port = FreeRTOS_htons( echoECHO_PORT );
xEchoServerAddress.sin_addr = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0,
configECHO_SERVER_ADDR1,
configECHO_SERVER_ADDR2,
configECHO_SERVER_ADDR3 );
for( ;; )
{
/* Create a socket. */
xSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
configASSERT( xSocket != FREERTOS_INVALID_SOCKET );
/* Set a time out so a missing reply does not cause the task to block
indefinitely. */
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
/* Send a number of echo requests. */
for( lLoopCount = 0; lLoopCount < lMaxLoopCount; lLoopCount++ )
{
/* This task is going to send using the zero copy interface. The
data being sent is therefore written directly into a buffer that is
passed by reference into the FreeRTOS_sendto() function. First
obtain a buffer of adequate size from the IP stack. Although a max
delay is used, the actual delay will be capped to
ipconfigMAX_SEND_BLOCK_TIME_TICKS, hence the test to ensure a buffer
was actually obtained. */
pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xBufferLength, portMAX_DELAY );
if( pucUDPPayloadBuffer != NULL )
{
/* A buffer was successfully obtained. Create the string that is
sent to the echo server. Note the string is written directly
into the buffer obtained from the IP stack. */
sprintf( ( char * ) pucUDPPayloadBuffer, "%s %u\r\n", ( const char * ) "Zero copy message number", ulTxCount );
/* Also copy the string into a local buffer so it can be compared
with the string that is later received back from the echo server. */
strcpy( ( char * ) cTxString, ( char * ) pucUDPPayloadBuffer );
/* Pass the buffer into the send function. ulFlags has the
FREERTOS_ZERO_COPY bit set so the IP stack will take control of
the buffer, rather than copy data out of the buffer. */
echoMARK_SEND_IN_TRACE_BUFFER( xZeroCopySendEvent );
lReturned = FreeRTOS_sendto( xSocket, /* The socket being sent to. */
( void * ) pucUDPPayloadBuffer, /* The buffer being passed into the IP stack. */
strlen( ( const char * ) cTxString ) + 1, /* The length of the data being sent. Plus 1 to ensure the null terminator is part of the data. */
FREERTOS_ZERO_COPY, /* ulFlags with the zero copy bit is set. */
&xEchoServerAddress, /* Where the data is being sent. */
sizeof( xEchoServerAddress ) );
if( lReturned == 0 )
{
/* The send operation failed, so this task is still
responsible for the buffer obtained from the IP stack. To
ensure the buffer is not lost it must either be used again,
or, as in this case, returned to the IP stack using
FreeRTOS_ReleaseUDPPayloadBuffer(). pucUDPPayloadBuffer can
be safely re-used to receive from the socket below once the
buffer has been returned to the stack. */
FreeRTOS_ReleaseUDPPayloadBuffer( ( void * ) pucUDPPayloadBuffer );
}
else
{
/* The send was successful so the IP stack is now managing
the buffer pointed to by pucUDPPayloadBuffer, and the IP
stack will return the buffer once it has been sent.
pucUDPPayloadBuffer can be safely re-used to receive from
the socket below. */
FreeRTOS_debug_printf( ( "[Zero Copy] Data sent... \r\n" ) );
}
/* Keep a count of how many echo requests have been transmitted
so it can be compared to the number of echo replies received.
It would be expected to loose at least one to an ARP message the
first time the connection is created. */
ulTxCount++;
/* Receive data on the socket. ulFlags has the zero copy bit set
(FREERTOS_ZERO_COPY) indicating to the stack that a reference to
the received data should be passed out to this task using the
second parameter to the FreeRTOS_recvfrom() call. When this is
done the IP stack is no longer responsible for releasing the
buffer, and the task *must* return the buffer to the stack when
it is no longer needed. By default the receive block time is
portMAX_DELAY. */
echoMARK_SEND_IN_TRACE_BUFFER( xZeroCopyReceiveEvent );
lReturned = FreeRTOS_recvfrom( xSocket, /* The socket to receive from. */
( void * ) &pucUDPPayloadBuffer, /* pucUDPPayloadBuffer will be set to point to the buffer that already contains the received data. */
0, /* Ignored because the zero copy interface is being used. */
FREERTOS_ZERO_COPY, /* ulFlags with the FREERTOS_ZERO_COPY bit set. */
&xEchoServerAddress, /* The address from which the data was sent. */
&xAddressLength );
if( lReturned > 0 )
{
/* Compare the string sent to the echo server with the string
received back from the echo server. */
if( strcmp( ( char * ) pucUDPPayloadBuffer, ( char * ) cTxString ) == 0 )
{
/* The strings matched. */
ulRxCount++;
FreeRTOS_debug_printf( ( "[Zero Copy] Data was received correctly.\r\n" ) );
}
else
{
FreeRTOS_debug_printf( ( "[Zero Copy] Data received was erreneous.\r\n" ) );
}
/* The buffer that contains the data passed out of the stack
*must* be returned to the stack. */
FreeRTOS_ReleaseUDPPayloadBuffer( pucUDPPayloadBuffer );
}
else
{
FreeRTOS_debug_printf( ( "[Zero Copy] Data was not received\r\n" ) );
}
}
}
/* Pause for a short while to ensure the network is not too
congested. */
vTaskDelay( echoLOOP_DELAY );
/* Close this socket before looping back to create another. */
FreeRTOS_closesocket( xSocket );
}
}
/*-----------------------------------------------------------*/

@ -0,0 +1,207 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
/* FreeRTOS+CLI includes. */
#include "FreeRTOS_CLI.h"
/* FreeRTOS+UDP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Demo app includes. */
#include "UDPCommandInterpreter.h"
/* Dimensions the buffer into which input characters are placed. */
#define cmdMAX_INPUT_SIZE 60
/* Dimensions the buffer into which string outputs can be placed. */
#define cmdMAX_OUTPUT_SIZE 1024
/* Dimensions the buffer passed to the recvfrom() call. */
#define cmdSOCKET_INPUT_BUFFER_SIZE 60
/*
* The task that runs FreeRTOS+CLI.
*/
void vUDPCommandInterpreterTask( void *pvParameters );
/*
* Open and configure the UDP socket.
*/
static Socket_t prvOpenUDPServerSocket( uint16_t usPort );
/*-----------------------------------------------------------*/
void vStartUDPCommandInterpreterTask( uint16_t usStackSize, uint32_t ulPort, unsigned portBASE_TYPE uxPriority )
{
xTaskCreate( vUDPCommandInterpreterTask, ( signed char * ) "CLI", usStackSize, ( void * ) ulPort, uxPriority, NULL );
}
/*-----------------------------------------------------------*/
/*
* Task that provides the input and output for the FreeRTOS+CLI command
* interpreter. In this case a UDP port is used. See the URL in the comments
* within main.c for the location of the online documentation.
*/
void vUDPCommandInterpreterTask( void *pvParameters )
{
long lBytes, lByte;
signed char cInChar, cInputIndex = 0;
static signed char cInputString[ cmdMAX_INPUT_SIZE ], cOutputString[ cmdMAX_OUTPUT_SIZE ], cLocalBuffer[ cmdSOCKET_INPUT_BUFFER_SIZE ];
portBASE_TYPE xMoreDataToFollow;
struct freertos_sockaddr xClient;
socklen_t xClientAddressLength = 0; /* This is required as a parameter to maintain the sendto() Berkeley sockets API - but it is not actually used so can take any value. */
Socket_t xSocket;
extern const uint8_t ucIPAddress[ 4 ];
extern const uint8_t ucMACAddress[ 6 ];
/* Just to prevent compiler warnings. */
( void ) pvParameters;
/* Attempt to open the socket. The port number is passed in the task
parameter. The strange casting is to remove compiler warnings on 32-bit
machines. */
xSocket = prvOpenUDPServerSocket( ( uint16_t ) ( ( uint32_t ) pvParameters ) & 0xffffUL );
if( xSocket != FREERTOS_INVALID_SOCKET )
{
for( ;; )
{
/* Wait for incoming data on the opened socket. */
lBytes = FreeRTOS_recvfrom( xSocket, ( void * ) cLocalBuffer, sizeof( cLocalBuffer ), 0, &xClient, &xClientAddressLength );
if( lBytes != FREERTOS_SOCKET_ERROR )
{
/* Process each received byte in turn. */
lByte = 0;
while( lByte < lBytes )
{
/* The next character in the input buffer. */
cInChar = cLocalBuffer[ lByte ];
lByte++;
/* Newline characters are taken as the end of the command
string. */
if( cInChar == '\n' )
{
/* Process the input string received prior to the
newline. */
do
{
/* Pass the string to FreeRTOS+CLI. */
xMoreDataToFollow = FreeRTOS_CLIProcessCommand( cInputString, cOutputString, cmdMAX_OUTPUT_SIZE );
/* Send the output generated by the command's
implementation. */
FreeRTOS_sendto( xSocket, cOutputString, strlen( ( const char * ) cOutputString ), 0, &xClient, xClientAddressLength );
} while( xMoreDataToFollow != pdFALSE ); /* Until the command does not generate any more output. */
/* All the strings generated by the command processing
have been sent. Clear the input string ready to receive
the next command. */
cInputIndex = 0;
memset( cInputString, 0x00, cmdMAX_INPUT_SIZE );
/* Transmit a spacer, just to make the command console
easier to read. */
FreeRTOS_sendto( xSocket, "\r\n", strlen( "\r\n" ), 0, &xClient, xClientAddressLength );
}
else
{
if( cInChar == '\r' )
{
/* Ignore the character. Newlines are used to
detect the end of the input string. */
}
else if( cInChar == '\b' )
{
/* Backspace was pressed. Erase the last character
in the string - if any. */
if( cInputIndex > 0 )
{
cInputIndex--;
cInputString[ cInputIndex ] = '\0';
}
}
else
{
/* A character was entered. Add it to the string
entered so far. When a \n is entered the complete
string will be passed to the command interpreter. */
if( cInputIndex < cmdMAX_INPUT_SIZE )
{
cInputString[ cInputIndex ] = cInChar;
cInputIndex++;
}
}
}
}
}
}
}
else
{
/* The socket could not be opened. */
vTaskDelete( NULL );
}
}
/*-----------------------------------------------------------*/
static Socket_t prvOpenUDPServerSocket( uint16_t usPort )
{
struct freertos_sockaddr xServer;
Socket_t xSocket = FREERTOS_INVALID_SOCKET;
xSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
if( xSocket != FREERTOS_INVALID_SOCKET)
{
/* Zero out the server structure. */
memset( ( void * ) &xServer, 0x00, sizeof( xServer ) );
/* Set family and port. */
xServer.sin_port = FreeRTOS_htons( usPort );
/* Bind the address to the socket. */
if( FreeRTOS_bind( xSocket, &xServer, sizeof( xServer ) ) == -1 )
{
FreeRTOS_closesocket( xSocket );
xSocket = FREERTOS_INVALID_SOCKET;
}
}
return xSocket;
}

@ -0,0 +1,32 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef SIMPLE_CLIENT_AND_SERVER_H
#define SIMPLE_CLIENT_AND_SERVER_H
void vStartSimpleUDPClientServerTasks( uint16_t usStackSize, uint32_t ulsPort, unsigned portBASE_TYPE uxPriority );
#endif /* SIMPLE_CLIENT_AND_SERVER_H */

@ -0,0 +1,37 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef TWO_ECHO_CLIENTS_H
#define TWO_ECHO_CLIENTS_H
/*
* Create the two UDP echo client tasks. One task uses the standard interface
* to send to and receive from an echo server. The other task uses the zero
* copy interface to send to and receive from an echo server.
*/
void vStartEchoClientTasks( uint16_t usTaskStackSize, unsigned portBASE_TYPE uxTaskPriority );
#endif /* TWO_ECHO_CLIENTS_H */

@ -0,0 +1,32 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef UDP_COMMAND_INTERPRETER_H
#define UDP_COMMAND_INTERPRETER_H
void vStartUDPCommandInterpreterTask( uint16_t usStackSize, uint32_t ulPort, unsigned portBASE_TYPE uxPriority );
#endif /* UDP_COMMAND_INTERPRETER_H */

@ -0,0 +1,217 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef FREERTOS_CONFIG_H
#define FREERTOS_CONFIG_H
/*-----------------------------------------------------------
* Application specific definitions.
*
* These definitions should be adjusted for your particular hardware and
* application requirements.
*
* THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
* FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
* http://www.freertos.org/a00110.html
*
* The bottom of this file contains some constants specific to running the UDP
* stack in this demo. Constants specific to FreeRTOS+TCP itself (rather than
* the demo) are contained in FreeRTOSIPConfig.h.
*----------------------------------------------------------*/
#define configENABLE_BACKWARD_COMPATIBILITY 1
#define configUSE_PREEMPTION 1
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#define configMAX_PRIORITIES ( 7 )
#define configTICK_RATE_HZ ( 1000 ) /* In this non-real time simulated environment the tick frequency has to be at least a multiple of the Win32 tick frequency, and therefore very slow. */
#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 60 ) /* In this simulated case, the stack only has to hold one small structure as the real stack is part of the Win32 thread. */
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 2048U * 1024U ) )
#define configMAX_TASK_NAME_LEN ( 15 )
#define configUSE_TRACE_FACILITY 1
#define configUSE_16_BIT_TICKS 0
#define configIDLE_SHOULD_YIELD 1
#define configUSE_CO_ROUTINES 0
#define configUSE_MUTEXES 1
#define configUSE_RECURSIVE_MUTEXES 1
#define configQUEUE_REGISTRY_SIZE 0
#define configUSE_APPLICATION_TASK_TAG 0
#define configUSE_COUNTING_SEMAPHORES 1
#define configUSE_ALTERNATIVE_API 0
#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 3 /* FreeRTOS+FAT requires 2 pointers if a CWD is supported. */
/* Hook function related definitions. */
#define configUSE_TICK_HOOK 0
#define configUSE_IDLE_HOOK 1
#define configUSE_MALLOC_FAILED_HOOK 1
#define configCHECK_FOR_STACK_OVERFLOW 0 /* Not applicable to the Win32 port. */
/* Software timer related definitions. */
#define configUSE_TIMERS 1
#define configTIMER_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
#define configTIMER_QUEUE_LENGTH 5
#define configTIMER_TASK_STACK_DEPTH ( configMINIMAL_STACK_SIZE * 2 )
/* Event group related definitions. */
#define configUSE_EVENT_GROUPS 1
/* Run time stats gathering definitions. */
#define configGENERATE_RUN_TIME_STATS 0
/* Co-routine definitions. */
#define configUSE_CO_ROUTINES 0
#define configMAX_CO_ROUTINE_PRIORITIES ( 2 )
/* Set the following definitions to 1 to include the API function, or zero
to exclude the API function. */
#define INCLUDE_vTaskPrioritySet 1
#define INCLUDE_uxTaskPriorityGet 1
#define INCLUDE_vTaskDelete 1
#define INCLUDE_vTaskCleanUpResources 0
#define INCLUDE_vTaskSuspend 1
#define INCLUDE_vTaskDelayUntil 1
#define INCLUDE_vTaskDelay 1
#define INCLUDE_uxTaskGetStackHighWaterMark 1
#define INCLUDE_xTaskGetSchedulerState 1
#define INCLUDE_xTimerGetTimerTaskHandle 0
#define INCLUDE_xTaskGetIdleTaskHandle 0
#define INCLUDE_xQueueGetMutexHolder 1
#define INCLUDE_eTaskGetState 1
#define INCLUDE_xEventGroupSetBitsFromISR 1
#define INCLUDE_xTimerPendFunctionCall 1
#define INCLUDE_pcTaskGetTaskName 1
/* This demo makes use of one or more example stats formatting functions. These
format the raw data provided by the uxTaskGetSystemState() function in to human
readable ASCII form. See the notes in the implementation of vTaskList() within
FreeRTOS/Source/tasks.c for limitations. configUSE_STATS_FORMATTING_FUNCTIONS
is set to 2 so the formatting functions are included without the stdio.h being
included in tasks.c. That is because this project defines its own sprintf()
functions. */
#define configUSE_STATS_FORMATTING_FUNCTIONS 1
/* Assert call defined for debug builds. */
#ifdef _DEBUG
extern void vAssertCalled(const char* pcFile, uint32_t ulLine);
#define configASSERT( x ) if( ( x ) == 0 ) vAssertCalled( __FILE__, __LINE__ )
#endif /* _DEBUG */
/* Application specific definitions follow. **********************************/
/* If configINCLUDE_DEMO_DEBUG_STATS is set to one, then a few basic IP trace
macros are defined to gather some UDP stack statistics that can then be viewed
through the CLI interface. */
#define configINCLUDE_DEMO_DEBUG_STATS 0
/* The size of the global output buffer that is available for use when there
are multiple command interpreters running at once (for example, one on a UART
and one on TCP/IP). This is done to prevent an output buffer being defined by
each implementation - which would waste RAM. In this case, there is only one
command interpreter running, and it has its own local output buffer, so the
global buffer is just set to be one byte long as it is not used and should not
take up unnecessary RAM. */
#define configCOMMAND_INT_MAX_OUTPUT_SIZE 1
/* Only used when running in the FreeRTOS Windows simulator. Defines the
priority of the task used to simulate Ethernet interrupts. */
#define configMAC_ISR_SIMULATOR_PRIORITY ( configMAX_PRIORITIES - 1 )
/* This demo creates a virtual network connection by accessing the raw Ethernet
or WiFi data to and from a real network connection. Many computers have more
than one real network port, and configNETWORK_INTERFACE_TO_USE is used to tell
the demo which real port should be used to create the virtual port. The ports
available are displayed on the console when the application is executed. For
example, on my development laptop setting configNETWORK_INTERFACE_TO_USE to 4
results in the wired network being used, while setting
configNETWORK_INTERFACE_TO_USE to 2 results in the wireless network being
used. */
#define configNETWORK_INTERFACE_TO_USE ( 0L )
/* The address of an echo server that will be used by the two demo echo client
tasks.
http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_Echo_Clients.html
http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/UDP_Echo_Clients.html */
#define configECHO_SERVER_ADDR0 192
#define configECHO_SERVER_ADDR1 168
#define configECHO_SERVER_ADDR2 0
#define configECHO_SERVER_ADDR3 17
/* Default MAC address configuration. The demo creates a virtual network
connection that uses this MAC address by accessing the raw Ethernet/WiFi data
to and from a real network connection on the host PC. See the
configNETWORK_INTERFACE_TO_USE definition above for information on how to
configure the real network connection to use. */
#define configMAC_ADDR0 0x00
#define configMAC_ADDR1 0x11
#define configMAC_ADDR2 0x22
#define configMAC_ADDR3 0x33
#define configMAC_ADDR4 0x44
#define configMAC_ADDR5 0x41
/* Default IP address configuration. Used in ipconfigUSE_DNS is set to 0, or
ipconfigUSE_DNS is set to 1 but a DNS server cannot be contacted. */
#define configIP_ADDR0 192
#define configIP_ADDR1 168
#define configIP_ADDR2 0
#define configIP_ADDR3 20
/* Default gateway IP address configuration. Used in ipconfigUSE_DNS is set to
0, or ipconfigUSE_DNS is set to 1 but a DNS server cannot be contacted. */
#define configGATEWAY_ADDR0 10
#define configGATEWAY_ADDR1 10
#define configGATEWAY_ADDR2 10
#define configGATEWAY_ADDR3 1
/* Default DNS server configuration. OpenDNS addresses are 208.67.222.222 and
208.67.220.220. Used if ipconfigUSE_DNS is set to 0, or ipconfigUSE_DNS is set
to 1 but a DNS server cannot be contacted.*/
#define configDNS_SERVER_ADDR0 208
#define configDNS_SERVER_ADDR1 67
#define configDNS_SERVER_ADDR2 222
#define configDNS_SERVER_ADDR3 222
/* Default netmask configuration. Used in ipconfigUSE_DNS is set to 0, or
ipconfigUSE_DNS is set to 1 but a DNS server cannot be contacted. */
#define configNET_MASK0 255
#define configNET_MASK1 0
#define configNET_MASK2 0
#define configNET_MASK3 0
/* The UDP port to which print messages are sent. */
#define configPRINT_PORT ( 15000 )
#if( defined( _MSC_VER ) && ( _MSC_VER <= 1600 ) && !defined( snprintf ) )
/* Map to Windows names. */
#define snprintf _snprintf
#define vsnprintf _vsnprintf
#endif
/* Visual studio does not have an implementation of strcasecmp(). */
#define strcasecmp _stricmp
#define strncasecmp _strnicmp
#define strcmpi _strcmpi
#endif /* FREERTOS_CONFIG_H */

@ -0,0 +1,306 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/*****************************************************************************
*
* See the following URL for configuration information.
* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html
*
*****************************************************************************/
#ifndef FREERTOS_IP_CONFIG_H
#define FREERTOS_IP_CONFIG_H
/* Prototype for the function used to print out. In this case it prints to the
console before the network is connected then a UDP port after the network has
connected. */
extern void vLoggingPrintf(const char* pcFormatString, ...);
/* Set to 1 to print out debug messages. If ipconfigHAS_DEBUG_PRINTF is set to
1 then FreeRTOS_debug_printf should be defined to the function used to print
out the debugging messages. */
#define ipconfigHAS_DEBUG_PRINTF 1
#if( ipconfigHAS_DEBUG_PRINTF == 1 )
#define FreeRTOS_debug_printf(X) vLoggingPrintf X
#endif
/* Set to 1 to print out non debugging messages, for example the output of the
FreeRTOS_netstat() command, and ping replies. If ipconfigHAS_PRINTF is set to 1
then FreeRTOS_printf should be set to the function used to print out the
messages. */
#define ipconfigHAS_PRINTF 1
#if( ipconfigHAS_PRINTF == 1 )
#define FreeRTOS_printf(X) vLoggingPrintf X
#endif
/* Define the byte order of the target MCU (the MCU FreeRTOS+TCP is executing
on). Valid options are pdFREERTOS_BIG_ENDIAN and pdFREERTOS_LITTLE_ENDIAN. */
#define ipconfigBYTE_ORDER pdFREERTOS_LITTLE_ENDIAN
/* If the network card/driver includes checksum offloading (IP/TCP/UDP checksums)
then set ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM to 1 to prevent the software
stack repeating the checksum calculations. */
#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
/* Several API's will block until the result is known, or the action has been
performed, for example FreeRTOS_send() and FreeRTOS_recv(). The timeouts can be
set per socket, using setsockopt(). If not set, the times below will be
used as defaults. */
#define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME ( 5000 )
#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME ( 5000 )
/* Include support for LLMNR: Link-local Multicast Name Resolution
(non-Microsoft) */
#define ipconfigUSE_LLMNR ( 1 )
/* Include support for NBNS: NetBIOS Name Service (Microsoft) */
#define ipconfigUSE_NBNS ( 1 )
/* Include support for DNS caching. For TCP, having a small DNS cache is very
useful. When a cache is present, ipconfigDNS_REQUEST_ATTEMPTS can be kept low
and also DNS may use small timeouts. If a DNS reply comes in after the DNS
socket has been destroyed, the result will be stored into the cache. The next
call to FreeRTOS_gethostbyname() will return immediately, without even creating
a socket. */
#define ipconfigUSE_DNS_CACHE ( 1 )
#define ipconfigDNS_CACHE_NAME_LENGTH ( 16 )
#define ipconfigDNS_CACHE_ENTRIES ( 4 )
#define ipconfigDNS_REQUEST_ATTEMPTS ( 2 )
/* The IP stack executes it its own task (although any application task can make
use of its services through the published sockets API). ipconfigUDP_TASK_PRIORITY
sets the priority of the task that executes the IP stack. The priority is a
standard FreeRTOS task priority so can take any value from 0 (the lowest
priority) to (configMAX_PRIORITIES - 1) (the highest priority).
configMAX_PRIORITIES is a standard FreeRTOS configuration parameter defined in
FreeRTOSConfig.h, not FreeRTOSIPConfig.h. Consideration needs to be given as to
the priority assigned to the task executing the IP stack relative to the
priority assigned to tasks that use the IP stack. */
#define ipconfigIP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
/* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
task. This setting is less important when the FreeRTOS Win32 simulator is used
as the Win32 simulator only stores a fixed amount of information on the task
stack. FreeRTOS includes optional stack overflow detection, see:
http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
#define ipconfigIP_TASK_STACK_SIZE_WORDS ( configMINIMAL_STACK_SIZE * 5 )
/* ipconfigRAND32() is called by the IP stack to generate random numbers for
things such as a DHCP transaction number or initial sequence number. Random
number generation is performed via this macro to allow applications to use their
own random number generation method. For example, it might be possible to
generate a random number by sampling noise on an analogue input. */
extern UBaseType_t uxRand();
#define ipconfigRAND32() uxRand()
/* If ipconfigUSE_NETWORK_EVENT_HOOK is set to 1 then FreeRTOS+TCP will call the
network event hook at the appropriate times. If ipconfigUSE_NETWORK_EVENT_HOOK
is not set to 1 then the network event hook will never be called. See
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/API/vApplicationIPNetworkEventHook.shtml
*/
#define ipconfigUSE_NETWORK_EVENT_HOOK 1
/* Sockets have a send block time attribute. If FreeRTOS_sendto() is called but
a network buffer cannot be obtained then the calling task is held in the Blocked
state (so other tasks can continue to executed) until either a network buffer
becomes available or the send block time expires. If the send block time expires
then the send operation is aborted. The maximum allowable send block time is
capped to the value set by ipconfigMAX_SEND_BLOCK_TIME_TICKS. Capping the
maximum allowable send block time prevents prevents a deadlock occurring when
all the network buffers are in use and the tasks that process (and subsequently
free) the network buffers are themselves blocked waiting for a network buffer.
ipconfigMAX_SEND_BLOCK_TIME_TICKS is specified in RTOS ticks. A time in
milliseconds can be converted to a time in ticks by dividing the time in
milliseconds by portTICK_PERIOD_MS. */
#define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS ( 5000U / portTICK_PERIOD_MS )
/* If ipconfigUSE_DHCP is 1 then FreeRTOS+TCP will attempt to retrieve an IP
address, netmask, DNS server address and gateway address from a DHCP server. If
ipconfigUSE_DHCP is 0 then FreeRTOS+TCP will use a static IP address. The
stack will revert to using the static IP address even when ipconfigUSE_DHCP is
set to 1 if a valid configuration cannot be obtained from a DHCP server for any
reason. The static configuration used is that passed into the stack by the
FreeRTOS_IPInit() function call. */
#define ipconfigUSE_DHCP 1
/* When ipconfigUSE_DHCP is set to 1, DHCP requests will be sent out at
increasing time intervals until either a reply is received from a DHCP server
and accepted, or the interval between transmissions reaches
ipconfigMAXIMUM_DISCOVER_TX_PERIOD. The IP stack will revert to using the
static IP address passed as a parameter to FreeRTOS_IPInit() if the
re-transmission time interval reaches ipconfigMAXIMUM_DISCOVER_TX_PERIOD without
a DHCP reply being received. */
#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( 120000U / portTICK_PERIOD_MS )
/* The ARP cache is a table that maps IP addresses to MAC addresses. The IP
stack can only send a UDP message to a remove IP address if it knowns the MAC
address associated with the IP address, or the MAC address of the router used to
contact the remote IP address. When a UDP message is received from a remote IP
address the MAC address and IP address are added to the ARP cache. When a UDP
message is sent to a remote IP address that does not already appear in the ARP
cache then the UDP message is replaced by a ARP message that solicits the
required MAC address information. ipconfigARP_CACHE_ENTRIES defines the maximum
number of entries that can exist in the ARP table at any one time. */
#define ipconfigARP_CACHE_ENTRIES 6
/* ARP requests that do not result in an ARP response will be re-transmitted a
maximum of ipconfigMAX_ARP_RETRANSMISSIONS times before the ARP request is
aborted. */
#define ipconfigMAX_ARP_RETRANSMISSIONS ( 5 )
/* ipconfigMAX_ARP_AGE defines the maximum time between an entry in the ARP
table being created or refreshed and the entry being removed because it is stale.
New ARP requests are sent for ARP cache entries that are nearing their maximum
age. ipconfigMAX_ARP_AGE is specified in tens of seconds, so a value of 150 is
equal to 1500 seconds (or 25 minutes). */
#define ipconfigMAX_ARP_AGE 150
/* Implementing FreeRTOS_inet_addr() necessitates the use of string handling
routines, which are relatively large. To save code space the full
FreeRTOS_inet_addr() implementation is made optional, and a smaller and faster
alternative called FreeRTOS_inet_addr_quick() is provided. FreeRTOS_inet_addr()
takes an IP in decimal dot format (for example, "192.168.0.1") as its parameter.
FreeRTOS_inet_addr_quick() takes an IP address as four separate numerical octets
(for example, 192, 168, 0, 1) as its parameters. If
ipconfigINCLUDE_FULL_INET_ADDR is set to 1 then both FreeRTOS_inet_addr() and
FreeRTOS_indet_addr_quick() are available. If ipconfigINCLUDE_FULL_INET_ADDR is
not set to 1 then only FreeRTOS_indet_addr_quick() is available. */
#define ipconfigINCLUDE_FULL_INET_ADDR 1
/* ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS defines the total number of network buffer that
are available to the IP stack. The total number of network buffers is limited
to ensure the total amount of RAM that can be consumed by the IP stack is capped
to a pre-determinable value. */
#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS 60
/* A FreeRTOS queue is used to send events from application tasks to the IP
stack. ipconfigEVENT_QUEUE_LENGTH sets the maximum number of events that can
be queued for processing at any one time. The event queue must be a minimum of
5 greater than the total number of network buffers. */
#define ipconfigEVENT_QUEUE_LENGTH ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5 )
/* The address of a socket is the combination of its IP address and its port
number. FreeRTOS_bind() is used to manually allocate a port number to a socket
(to 'bind' the socket to a port), but manual binding is not normally necessary
for client sockets (those sockets that initiate outgoing connections rather than
wait for incoming connections on a known port number). If
ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 1 then calling
FreeRTOS_sendto() on a socket that has not yet been bound will result in the IP
stack automatically binding the socket to a port number from the range
socketAUTO_PORT_ALLOCATION_START_NUMBER to 0xffff. If
ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 0 then calling FreeRTOS_sendto()
on a socket that has not yet been bound will result in the send operation being
aborted. */
#define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND 1
/* Defines the Time To Live (TTL) values used in outgoing UDP packets. */
#define ipconfigUDP_TIME_TO_LIVE 128
#define ipconfigTCP_TIME_TO_LIVE 128 /* also defined in FreeRTOSIPConfigDefaults.h */
/* USE_TCP: Use TCP and all its features */
#define ipconfigUSE_TCP ( 0 )
/* USE_WIN: Let TCP use windowing mechanism. */
#define ipconfigUSE_TCP_WIN ( 0 )
/* The MTU is the maximum number of bytes the payload of a network frame can
contain. For normal Ethernet V2 frames the maximum MTU is 1500. Setting a
lower value can save RAM, depending on the buffer management scheme used. If
ipconfigCAN_FRAGMENT_OUTGOING_PACKETS is 1 then (ipconfigNETWORK_MTU - 28) must
be divisible by 8. */
#define ipconfigNETWORK_MTU 1200U
/* Set ipconfigUSE_DNS to 1 to include a basic DNS client/resolver. DNS is used
through the FreeRTOS_gethostbyname() API function. */
#define ipconfigUSE_DNS 1
/* If ipconfigREPLY_TO_INCOMING_PINGS is set to 1 then the IP stack will
generate replies to incoming ICMP echo (ping) requests. */
#define ipconfigREPLY_TO_INCOMING_PINGS 1
/* If ipconfigSUPPORT_OUTGOING_PINGS is set to 1 then the
FreeRTOS_SendPingRequest() API function is available. */
#define ipconfigSUPPORT_OUTGOING_PINGS 0
/* If ipconfigSUPPORT_SELECT_FUNCTION is set to 1 then the FreeRTOS_select()
(and associated) API function is available. */
#define ipconfigSUPPORT_SELECT_FUNCTION 1
/* If ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES is set to 1 then Ethernet frames
that are not in Ethernet II format will be dropped. This option is included for
potential future IP stack developments. */
#define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES 1
/* If ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES is set to 1 then it is the
responsibility of the Ethernet interface to filter out packets that are of no
interest. If the Ethernet interface does not implement this functionality, then
set ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES to 0 to have the IP stack
perform the filtering instead (it is much less efficient for the stack to do it
because the packet will already have been passed into the stack). If the
Ethernet driver does all the necessary filtering in hardware then software
filtering can be removed by using a value other than 1 or 0. */
#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
/* The windows simulator cannot really simulate MAC interrupts, and needs to
block occasionally to allow other tasks to run. */
#define configWINDOWS_MAC_INTERRUPT_SIMULATOR_DELAY ( 20 / portTICK_PERIOD_MS )
/* Advanced only: in order to access 32-bit fields in the IP packets with
32-bit memory instructions, all packets will be stored 32-bit-aligned, plus 16-bits.
This has to do with the contents of the IP-packets: all 32-bit fields are
32-bit-aligned, plus 16-bit(!) */
#define ipconfigPACKET_FILLER_SIZE 2U
/* Define the size of the pool of TCP window descriptors. On the average, each
TCP socket will use up to 2 x 6 descriptors, meaning that it can have 2 x 6
outstanding packets (for Rx and Tx). When using up to 10 TP sockets
simultaneously, one could define TCP_WIN_SEG_COUNT as 120. */
#define ipconfigTCP_WIN_SEG_COUNT 240
/* Each TCP socket has a circular buffers for Rx and Tx, which have a fixed
maximum size. Define the size of Rx buffer for TCP sockets. */
#define ipconfigTCP_RX_BUFFER_LENGTH ( 1000 )
/* Define the size of Tx buffer for TCP sockets. */
#define ipconfigTCP_TX_BUFFER_LENGTH ( 1000 )
/* When using call-back handlers, the driver may check if the handler points to
real program memory (RAM or flash) or just has a random non-zero value. */
#define ipconfigIS_VALID_PROG_ADDRESS(x) ( (x) != NULL )
/* Include support for TCP hang protection. All sockets in a connecting or
disconnecting stage will timeout after a period of non-activity. */
#define ipconfigTCP_HANG_PROTECTION ( 1 )
#define ipconfigTCP_HANG_PROTECTION_TIME ( 30 )
/* Include support for TCP keep-alive messages. */
#define ipconfigTCP_KEEP_ALIVE ( 1 )
#define ipconfigTCP_KEEP_ALIVE_INTERVAL ( 20 ) /* in seconds */
#define portINLINE __inline
#endif /* FREERTOS_IP_CONFIG_H */

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@ -0,0 +1,11 @@
This demo is documented on the following web page:
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/RTOS_UDP_CLI_Windows_Simulator.shtml
The FreeRTOS+UDP API is documented on the following web page:
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/FreeRTOS_UDP_API_Functions.shtml
Other information, including a FreeRTOS+UDP primer, a description of the
directory structure, and a glossary of networking terminology, can be found in
the FreeRTOS+UDP portal:
http://www.FreeRTOS.org/udp

@ -0,0 +1,89 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/*
* Utility functions required to gather run time statistics. See:
* http://www.freertos.org/rtos-run-time-stats.html
*
* Note that this is a simulated port, where simulated time is a lot slower than
* real time, therefore the run time counter values have no real meaningful
* units.
*
* Also note that it is assumed this demo is going to be used for short periods
* of time only, and therefore timer overflows are not handled.
*/
/* FreeRTOS includes. */
#include <FreeRTOS.h>
/* Variables used in the creation of the run time stats time base. Run time
stats record how much time each task spends in the Running state. */
static long long llInitialRunTimeCounterValue = 0LL, llTicksPerHundedthMillisecond = 0LL;
/*-----------------------------------------------------------*/
void vConfigureTimerForRunTimeStats( void )
{
LARGE_INTEGER liPerformanceCounterFrequency, liInitialRunTimeValue;
/* Initialise the variables used to create the run time stats time base.
Run time stats record how much time each task spends in the Running
state. */
if( QueryPerformanceFrequency( &liPerformanceCounterFrequency ) == 0 )
{
llTicksPerHundedthMillisecond = 1;
}
else
{
/* How many times does the performance counter increment in 1/100th
millisecond. */
llTicksPerHundedthMillisecond = liPerformanceCounterFrequency.QuadPart / 100000LL;
/* What is the performance counter value now, this will be subtracted
from readings taken at run time. */
QueryPerformanceCounter( &liInitialRunTimeValue );
llInitialRunTimeCounterValue = liInitialRunTimeValue.QuadPart;
}
}
/*-----------------------------------------------------------*/
unsigned long ulGetRunTimeCounterValue( void )
{
LARGE_INTEGER liCurrentCount;
unsigned long ulReturn;
/* What is the performance counter value now? */
QueryPerformanceCounter( &liCurrentCount );
/* Subtract the performance counter value reading taken when the
application started to get a count from that reference point, then
scale to (simulated) 1/100ths of a millisecond. */
ulReturn = ( unsigned long ) ( ( liCurrentCount.QuadPart - llInitialRunTimeCounterValue ) / llTicksPerHundedthMillisecond );
return ulReturn;
}
/*-----------------------------------------------------------*/

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@ -0,0 +1,3 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
</Project>

@ -0,0 +1,365 @@
/*
* FreeRTOS V202011.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/* Standard includes. */
#include <stdio.h>
#include <stdint.h>
/* FreeRTOS includes. */
#include <FreeRTOS.h>
#include "task.h"
#include "queue.h"
#include "semphr.h"
/* Demo application includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
#include "SimpleClientAndServer.h"
#include "TwoEchoClients.h"
#include "UDPCommandInterpreter.h"
#include "logging.h"
/* UDP command server task parameters. */
#define mainUDP_CLI_TASK_PRIORITY ( tskIDLE_PRIORITY )
#define mainUDP_CLI_PORT_NUMBER ( 5001UL )
#define mainUDP_CLI_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE )
/* Simple UDP client and server task parameters. */
#define mainSIMPLE_CLIENT_SERVER_TASK_PRIORITY ( tskIDLE_PRIORITY )
#define mainSIMPLE_CLIENT_SERVER_PORT ( 5005UL )
#define mainSIMPLE_CLIENT_SERVER_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE )
/* Echo client task parameters. */
#define mainECHO_CLIENT_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 )
#define mainECHO_CLIENT_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
/* Set the following constants to 1 or 0 to define which tasks to include and
exclude. */
#define mainCREATE_UDP_CLI_TASKS 1
#define mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS 0
#define mainCREATE_UDP_ECHO_TASKS 1
/*-----------------------------------------------------------*/
/*
* Register commands that can be used with FreeRTOS+CLI through the UDP socket.
* The commands are defined in CLI-commands.c.
*/
extern void vRegisterCLICommands( void );
/* The default IP and MAC address used by the demo. The address configuration
defined here will be used if ipconfigUSE_DHCP is 0, or if ipconfigUSE_DHCP is
1 but a DHCP server could not be contacted. See the online documentation for
more information. */
static const uint8_t ucIPAddress[ 4 ] = { configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 };
static const uint8_t ucNetMask[ 4 ] = { configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 };
static const uint8_t ucGatewayAddress[ 4 ] = { configGATEWAY_ADDR0, configGATEWAY_ADDR1, configGATEWAY_ADDR2, configGATEWAY_ADDR3 };
static const uint8_t ucDNSServerAddress[ 4 ] = { configDNS_SERVER_ADDR0, configDNS_SERVER_ADDR1, configDNS_SERVER_ADDR2, configDNS_SERVER_ADDR3 };
/* Default MAC address configuration. The demo creates a virtual network
connection that uses this MAC address by accessing the raw Ethernet data
to and from a real network connection on the host PC. See the
configNETWORK_INTERFACE_TO_USE definition for information on how to configure
the real network connection to use. */
const uint8_t ucMACAddress[ 6 ] = { configMAC_ADDR0, configMAC_ADDR1, configMAC_ADDR2, configMAC_ADDR3, configMAC_ADDR4, configMAC_ADDR5 };
/* Used to guard prints to the console. */
static xSemaphoreHandle xConsoleMutex = NULL;
/* Set the following constant to pdTRUE to log using the method indicated by the
* name of the constant, or pdFALSE to not log using the method indicated by the
* name of the constant. Options include to standard out (xLogToStdout), to a disk
* file (xLogToFile), and to a UDP port (xLogToUDP). If xLogToUDP is set to pdTRUE
* then UDP messages are sent to the IP address configured as the echo server
* address (see the configECHO_SERVER_ADDR0 definitions in FreeRTOSConfig.h) and
* the port number set by configPRINT_PORT in FreeRTOSConfig.h. */
const BaseType_t xLogToStdout = pdTRUE, xLogToFile = pdFALSE, xLogToUDP = pdFALSE;
/*-----------------------------------------------------------*/
/* Define a name that will be used for LLMNR and NBNS searches. */
#define mainHOST_NAME "RTOSDemo"
#define mainDEVICE_NICK_NAME "windows_demo"
/* Used by the pseudo random number generator. */
static UBaseType_t ulNextRand;
/******************************************************************************
*
* See the following web page for information on using this demo.
* http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/RTOS_UDP_CLI_Windows_Simulator.shtml
*
******************************************************************************/
int main( void )
{
const uint32_t ulLongTime_ms = 250UL;
/* Create a mutex that is used to guard against the console being accessed
by more than one task simultaniously. */
xConsoleMutex = xSemaphoreCreateMutex();
/* Initialise the network interface. Tasks that use the network are
created in the network event hook when the network is connected and ready
for use. The address values passed in here are used if ipconfigUSE_DHCP is
set to 0, or if ipconfigUSE_DHCP is set to 1 but a DHCP server cannot be
contacted. */
FreeRTOS_IPInit( ucIPAddress, ucNetMask, ucGatewayAddress, ucDNSServerAddress, ucMACAddress );
/* Initialise the logging. */
uint32_t ulLoggingIPAddress;
ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0,
configECHO_SERVER_ADDR1,
configECHO_SERVER_ADDR2,
configECHO_SERVER_ADDR3 );
vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
/* Register commands with the FreeRTOS+CLI command interpreter. */
vRegisterCLICommands();
/* Start the RTOS scheduler. */
vTaskStartScheduler();
/* If all is well, the scheduler will now be running, and the following
line will never be reached. If the following line does execute, then
there was insufficient FreeRTOS heap memory available for the idle and/or
timer tasks to be created. See the memory management section on the
FreeRTOS web site for more details (this is standard text that is not not
really applicable to the Win32 simulator port). */
for( ;; )
{
Sleep( ulLongTime_ms );
}
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void )
{
const unsigned long ulMSToSleep = 5;
/* This function is called on each cycle of the idle task if
configUSE_IDLE_HOOK is set to 1 in FreeRTOSConfig.h. Sleep to reduce CPU
load. */
Sleep( ulMSToSleep );
}
/*-----------------------------------------------------------*/
void vAssertCalled( void )
{
const unsigned long ulLongSleep = 1000UL;
volatile uint32_t ulBlockVariable = 0UL;
/* Setting ulBlockVariable to a non-zero value in the debugger will allow
this function to be exited. */
taskDISABLE_INTERRUPTS();
{
while( ulBlockVariable == 0UL )
{
Sleep( ulLongSleep );
}
}
taskENABLE_INTERRUPTS();
}
/*-----------------------------------------------------------*/
/* Called by FreeRTOS+TCP when the network connects. */
void vApplicationIPNetworkEventHook( eIPCallbackEvent_t eNetworkEvent )
{
uint32_t ulIPAddress, ulNetMask, ulGatewayAddress, ulDNSServerAddress;
int8_t cBuffer[ 16 ];
static BaseType_t xTasksAlreadyCreated = pdFALSE;
if( eNetworkEvent == eNetworkUp )
{
/* Create the tasks that use the IP stack if they have not already been
created. */
if( xTasksAlreadyCreated == pdFALSE )
{
#if( mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS == 1 )
{
/* Create tasks that demonstrate sending and receiving in both
standard and zero copy mode. */
vStartSimpleUDPClientServerTasks( mainSIMPLE_CLIENT_SERVER_TASK_STACK_SIZE, mainSIMPLE_CLIENT_SERVER_PORT, mainSIMPLE_CLIENT_SERVER_TASK_PRIORITY );
}
#endif /* mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS */
#if( mainCREATE_UDP_ECHO_TASKS == 1 )
{
/* Create the tasks that transmit to and receive from a standard
echo server (see the web documentation for this port) in both
standard and zero copy mode. */
vStartEchoClientTasks( mainECHO_CLIENT_TASK_STACK_SIZE, mainECHO_CLIENT_TASK_PRIORITY );
}
#endif /* mainCREATE_UDP_ECHO_TASKS */
#if( mainCREATE_UDP_CLI_TASKS == 1 )
{
/* Create the task that handles the CLI on a UDP port. The port number
is set using the configUDP_CLI_PORT_NUMBER setting in FreeRTOSConfig.h. */
vStartUDPCommandInterpreterTask( mainUDP_CLI_TASK_STACK_SIZE, mainUDP_CLI_PORT_NUMBER, mainUDP_CLI_TASK_PRIORITY );
}
#endif /* mainCREATE_UDP_CLI_TASKS */
xTasksAlreadyCreated = pdTRUE;
}
/* Print out the network configuration, which may have come from a DHCP
server. */
FreeRTOS_GetAddressConfiguration( &ulIPAddress, &ulNetMask, &ulGatewayAddress, &ulDNSServerAddress );
FreeRTOS_debug_printf( ( "IP Address: " ) );
FreeRTOS_inet_ntoa( ulIPAddress, cBuffer );
FreeRTOS_debug_printf( ( ( char * ) cBuffer ) );
FreeRTOS_debug_printf( ( "\r\nSubnet Mask: " ) );
FreeRTOS_inet_ntoa( ulNetMask, cBuffer );
FreeRTOS_debug_printf( ( ( char * ) cBuffer ) );
FreeRTOS_debug_printf( ( "\r\nGateway Address: " ) );
FreeRTOS_inet_ntoa( ulGatewayAddress, cBuffer );
FreeRTOS_debug_printf( ( ( char * ) cBuffer ) );
FreeRTOS_debug_printf( ( "\r\nDNS Server Address: " ) );
FreeRTOS_inet_ntoa( ulDNSServerAddress, cBuffer );
FreeRTOS_debug_printf( ( ( char * ) cBuffer ) );
FreeRTOS_debug_printf( ( "\r\n\r\n" ) );
}
}
/*-----------------------------------------------------------*/
/* Called automatically when a reply to an outgoing ping is received. */
void vApplicationPingReplyHook( ePingReplyStatus_t eStatus, uint16_t usIdentifier )
{
static const uint8_t *pcSuccess = ( uint8_t * ) "Ping reply received - ";
static const uint8_t *pcInvalidChecksum = ( uint8_t * ) "Ping reply received with invalid checksum - ";
static const uint8_t *pcInvalidData = ( uint8_t * ) "Ping reply received with invalid data - ";
static uint8_t cMessage[ 50 ];
switch( eStatus )
{
case eSuccess :
FreeRTOS_debug_printf( ( ( char * ) pcSuccess ) );
break;
case eInvalidChecksum :
FreeRTOS_debug_printf( ( ( char * ) pcInvalidChecksum ) );
break;
case eInvalidData :
FreeRTOS_debug_printf( ( ( char * ) pcInvalidData ) );
break;
default :
/* It is not possible to get here as all enums have their own
case. */
break;
}
sprintf( ( char * ) cMessage, "identifier %d\r\n", ( int ) usIdentifier );
FreeRTOS_debug_printf( ( ( char * ) cMessage ) );
}
/*-----------------------------------------------------------*/
void vApplicationMallocFailedHook( void )
{
/* vApplicationMallocFailedHook() will only be called if
configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
function that will get called if a call to pvPortMalloc() fails.
pvPortMalloc() is called internally by the kernel whenever a task, queue,
timer or semaphore is created. It is also called by various parts of the
demo application. If heap_1.c, heap_2.c or heap_4.c are used, then the
size of the heap available to pvPortMalloc() is defined by
configTOTAL_HEAP_SIZE in FreeRTOSConfig.h, and the xPortGetFreeHeapSize()
API function can be used to query the size of free heap space that remains
(although it does not provide information on how the remaining heap might
be fragmented). */
taskDISABLE_INTERRUPTS();
for( ;; );
}
/*-----------------------------------------------------------*/
#if ( ipconfigUSE_LLMNR != 0 ) || ( ipconfigUSE_NBNS != 0 ) || ( ipconfigDHCP_REGISTER_HOSTNAME == 1 )
const char * pcApplicationHostnameHook( void )
{
/* Assign the name "FreeRTOS" to this network node. This function will
* be called during the DHCP: the machine will be registered with an IP
* address plus this name. */
return mainHOST_NAME;
}
#endif
/*-----------------------------------------------------------*/
#if ( ipconfigUSE_LLMNR != 0 ) || ( ipconfigUSE_NBNS != 0 )
BaseType_t xApplicationDNSQueryHook( const char * pcName )
{
BaseType_t xReturn;
/* Determine if a name lookup is for this node. Two names are given
* to this node: that returned by pcApplicationHostnameHook() and that set
* by mainDEVICE_NICK_NAME. */
if( _stricmp( pcName, pcApplicationHostnameHook() ) == 0 )
{
xReturn = pdPASS;
}
else if( _stricmp( pcName, mainDEVICE_NICK_NAME ) == 0 )
{
xReturn = pdPASS;
}
else
{
xReturn = pdFAIL;
}
return xReturn;
}
#endif /* if ( ipconfigUSE_LLMNR != 0 ) || ( ipconfigUSE_NBNS != 0 ) */
/*-----------------------------------------------------------*/
UBaseType_t uxRand( void )
{
const uint32_t ulMultiplier = 0x015a4e35UL, ulIncrement = 1UL;
/* Utility function to generate a pseudo random number. */
ulNextRand = ( ulMultiplier * ulNextRand ) + ulIncrement;
return( ( int ) ( ulNextRand >> 16UL ) & 0x7fffUL );
}
/*
* Supply a random number to FreeRTOS+TCP stack.
* THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER
* SO IS NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
*/
BaseType_t xApplicationGetRandomNumber( uint32_t * pulNumber )
{
*( pulNumber ) = uxRand();
return pdTRUE;
}

@ -1,4 +0,0 @@
FreeRTOS+UDP was removed in FreeRTOS V10.1.0 as it was replaced by FreeRTOS+TCP,
which was brought into the main download in FreeRTOS V10.0.0. FreeRTOS+TCP can
be configured as a UDP only stack, and FreeRTOS+UDP does not contain the patches
applied to FreeRTOS+TCP.

@ -1,5 +0,0 @@
[{000214A0-0000-0000-C000-000000000046}]
Prop3=19,2
[InternetShortcut]
URL=http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/index.html
IDList=
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