Port Defender demo from C-SDK (#407)

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/*
* 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
*
*/
/*
* Demo for showing how to use the Device Defender library's APIs. The Device
* Defender library provides macros and helper functions for assembling MQTT
* topics strings, and for determining whether an incoming MQTT message is
* related to device defender. The Device Defender library does not depend on
* any particular MQTT library, therefore the code for MQTT operations is
* placed in another file (mqtt_demo_helpers.c). This demo uses the coreMQTT
* library. If needed, mqtt_demo_helpers.c can be modified to replace coreMQTT
* with another MQTT library. This demo requires using the AWS IoT broker as
* Device Defender is an AWS service.
*
* This demo connects to the AWS IoT broker and subscribes to the device
* defender topics. It then collects metrics for the open ports and sockets on
* the device using FreeRTOS+TCP, and generates a device defender report. The
* report is then published, and the demo waits for a response from the device
* defender service. Upon receiving the response or timing out, the demo
* finishes.
*
* This demo sets the report ID to xTaskGetTickCount(), which may collide if
* the device is reset. Reports for a Thing with a previously used report ID
* will be assumed to be duplicates and discarded by the Device Defender
* service. The report ID needs to be unique per report sent with a given
* Thing. We recommend using an increasing unique id such as the current
* timestamp.
*/
/* Standard includes. */
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdint.h>
/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Demo config. */
#include "demo_config.h"
/* JSON Library. */
#include "core_json.h"
/* Device Defender Client Library. */
#include "defender.h"
/* MQTT operations. */
#include "mqtt_demo_helpers.h"
/* Metrics collector. */
#include "metrics_collector.h"
/* Report builder. */
#include "report_builder.h"
/**
* democonfigTHING_NAME is required. Throw compilation error if it is not defined.
*/
#ifndef democonfigTHING_NAME
#error "Please define democonfigTHING_NAME to the thing name registered with AWS IoT Core in demo_config.h."
#endif
/**
* @brief The length of #democonfigTHING_NAME.
*/
#define THING_NAME_LENGTH ( ( uint16_t ) ( sizeof( democonfigTHING_NAME ) - 1 ) )
/**
* @brief Number of seconds to wait for the response from AWS IoT Device
* Defender service.
*/
#define DEFENDER_RESPONSE_WAIT_SECONDS ( 2 )
#define DEFENDER_RESPONSE_REPORT_ID_FIELD "reportId"
#define DEFENDER_RESPONSE_REPORT_ID_FIELD_LENGTH ( sizeof( DEFENDER_RESPONSE_REPORT_ID_FIELD ) - 1 )
/**
* @brief Status values of the device defender report.
*/
typedef enum
{
ReportStatusNotReceived,
ReportStatusAccepted,
ReportStatusRejected
} ReportStatus_t;
/*-----------------------------------------------------------*/
/**
* @brief The MQTT context used for MQTT operation.
*/
static MQTTContext_t xMqttContext;
/**
* @brief The network context used for mbedTLS operation.
*/
static NetworkContext_t xNetworkContext;
/**
* @brief Static buffer used to hold MQTT messages being sent and received.
*/
static uint8_t ucSharedBuffer[ democonfigNETWORK_BUFFER_SIZE ];
/**
* @brief Static buffer used to hold MQTT messages being sent and received.
*/
static MQTTFixedBuffer_t xBuffer =
{
ucSharedBuffer,
democonfigNETWORK_BUFFER_SIZE
};
/**
* @brief Network Stats.
*/
static NetworkStats_t xNetworkStats;
/**
* @brief Open TCP ports array.
*/
static uint16_t pusOpenTcpPorts[ democonfigOPEN_TCP_PORTS_ARRAY_SIZE ];
/**
* @brief Open UDP ports array.
*/
static uint16_t pusOpenUdpPorts[ democonfigOPEN_UDP_PORTS_ARRAY_SIZE ];
/**
* @brief Established connections array.
*/
static Connection_t pxEstablishedConnections[ democonfigESTABLISHED_CONNECTIONS_ARRAY_SIZE ];
/**
* @brief All the metrics sent in the device defender report.
*/
static ReportMetrics_t xDeviceMetrics;
/**
* @brief Report status.
*/
static ReportStatus_t xReportStatus;
/**
* @brief Buffer for generating the device defender report.
*/
static char pcDeviceMetricsJsonReport[ democonfigDEVICE_METRICS_REPORT_BUFFER_SIZE ];
/**
* @brief Report Id sent in the defender report.
*/
static uint32_t ulReportId = 0UL;
/*-----------------------------------------------------------*/
/**
* @brief Callback to receive the incoming publish messages from the MQTT broker.
*
* @param[in] pxMqttContext The MQTT context for the MQTT connection.
* @param[in] pxPacketInfo Pointer to publish info of the incoming publish.
* @param[in] pxDeserializedInfo Deserialized information from the incoming publish.
*/
static void prvPublishCallback( MQTTContext_t * pxMqttContext,
MQTTPacketInfo_t * pxPacketInfo,
MQTTDeserializedInfo_t * pxDeserializedInfo );
/**
* @brief Collect all the metrics to be sent in the device defender report.
*
* @return true if all the metrics are successfully collected;
* false otherwise.
*/
static bool prvCollectDeviceMetrics( void );
/**
* @brief Generate the device defender report.
*
* @param[out] pulOutReportLength Length of the device defender report.
*
* @return true if the report is generated successfully;
* false otherwise.
*/
static bool prvGenerateDeviceMetricsReport( uint32_t * pulOutReportLength );
/**
* @brief Subscribe to the device defender topics.
*
* @return true if the subscribe is successful;
* false otherwise.
*/
static bool prvSubscribeToDefenderTopics( void );
/**
* @brief Unsubscribe from the device defender topics.
*
* @return true if the unsubscribe is successful;
* false otherwise.
*/
static bool prvUnsubscribeFromDefenderTopics( void );
/**
* @brief Publish the generated device defender report.
*
* @param[in] ulReportLength Length of the device defender report.
*
* @return true if the report is published successfully;
* false otherwise.
*/
static bool prvPublishDeviceMetricsReport( uint32_t ulReportLength );
/**
* @brief Validate the response received from the AWS IoT Device Defender Service.
*
* This functions checks that a valid JSON is received and the report ID
* is same as was sent in the published report.
*
* @param[in] pcDefenderResponse The defender response to validate.
* @param[in] ulDefenderResponseLength Length of the defender response.
*
* @return true if the response is valid;
* false otherwise.
*/
static bool prvValidateDefenderResponse( const char * pcDefenderResponse,
uint32_t ulDefenderResponseLength );
/**
* @brief The task used to demonstrate the Defender API.
*
* This task collects metrics from the device using the functions in
* metrics_collector.h and uses them to build a defender report using functions
* in report_builder.h. Metrics include the number for bytes written and read
* over the network, open TCP and UDP ports, and open TCP sockets. The
* generated report is then published to the AWS IoT Device Defender service.
*
* @param[in] pvParameters Parameters as passed at the time of task creation.
* Not used in this example.
*/
static void prvDefenderDemoTask( void * pvParameters );
/*-----------------------------------------------------------*/
static bool prvValidateDefenderResponse( const char * pcDefenderResponse,
uint32_t ulDefenderResponseLength )
{
bool xStatus = false;
JSONStatus_t eJsonResult = JSONSuccess;
char * ucReportIdString = NULL;
size_t xReportIdStringLength;
uint32_t ulReportIdInResponse;
configASSERT( pcDefenderResponse != NULL );
/* Is the response a valid JSON? */
eJsonResult = JSON_Validate( pcDefenderResponse, ulDefenderResponseLength );
if( eJsonResult != JSONSuccess )
{
LogError( ( "Invalid response from AWS IoT Device Defender Service: %.*s.",
( int ) ulDefenderResponseLength,
pcDefenderResponse ) );
}
if( eJsonResult == JSONSuccess )
{
/* Search the ReportId key in the response. */
eJsonResult = JSON_Search( ( char * ) pcDefenderResponse,
ulDefenderResponseLength,
DEFENDER_RESPONSE_REPORT_ID_FIELD,
DEFENDER_RESPONSE_REPORT_ID_FIELD_LENGTH,
&( ucReportIdString ),
&( xReportIdStringLength ) );
if( eJsonResult != JSONSuccess )
{
LogError( ( "%s key not found in the response from the"
"AWS IoT Device Defender Service: %.*s.",
DEFENDER_RESPONSE_REPORT_ID_FIELD,
( int ) ulDefenderResponseLength,
pcDefenderResponse ) );
}
}
if( eJsonResult == JSONSuccess )
{
ulReportIdInResponse = ( uint32_t ) strtoul( ucReportIdString, NULL, 10 );
/* Is the report ID present in the response same as was sent in the
* published report? */
if( ulReportIdInResponse == ulReportId )
{
LogInfo( ( "A valid response with report ID %u received from the "
"AWS IoT Device Defender Service.", ulReportId ) );
xStatus = true;
}
else
{
LogError( ( "Unexpected %s found in the response from the AWS"
"IoT Device Defender Service. Expected: %u, Found: %u, "
"Complete Response: %.*s.",
DEFENDER_RESPONSE_REPORT_ID_FIELD,
ulReportId,
ulReportIdInResponse,
( int ) ulDefenderResponseLength,
pcDefenderResponse ) );
}
}
return xStatus;
}
/*-----------------------------------------------------------*/
static void prvPublishCallback( MQTTContext_t * pxMqttContext,
MQTTPacketInfo_t * pxPacketInfo,
MQTTDeserializedInfo_t * pxDeserializedInfo )
{
DefenderStatus_t xStatus;
DefenderTopic_t xApi;
bool xValidationResult;
MQTTPublishInfo_t * pxPublishInfo;
configASSERT( pxMqttContext != NULL );
configASSERT( pxPacketInfo != NULL );
configASSERT( pxDeserializedInfo != NULL );
/* Suppress the unused parameter warning when asserts are disabled in
* build. */
( void ) pxMqttContext;
/* Handle an incoming publish. The lower 4 bits of the publish packet
* type is used for the dup, QoS, and retain flags. Hence masking
* out the lower bits to check if the packet is publish. */
if( ( pxPacketInfo->type & 0xF0U ) == MQTT_PACKET_TYPE_PUBLISH )
{
configASSERT( pxDeserializedInfo->pPublishInfo != NULL );
pxPublishInfo = pxDeserializedInfo->pPublishInfo;
/* Verify that the publish is for device defender, and if so get which
* defender API it is for */
xStatus = Defender_MatchTopic( pxPublishInfo->pTopicName,
pxPublishInfo->topicNameLength,
&( xApi ),
NULL,
NULL );
if( xStatus == DefenderSuccess )
{
if( xApi == DefenderJsonReportAccepted )
{
/* Check if the response is valid and is for the report we
* published. If so, report was accepted. */
xValidationResult = prvValidateDefenderResponse( pxPublishInfo->pPayload,
pxPublishInfo->payloadLength );
if( xValidationResult == true )
{
LogInfo( ( "The defender report was accepted by the service. Response: %.*s.",
( int ) pxPublishInfo->payloadLength,
( const char * ) pxPublishInfo->pPayload ) );
xReportStatus = ReportStatusAccepted;
}
}
else if( xApi == DefenderJsonReportRejected )
{
/* Check if the response is valid and is for the report we
* published. If so, report was rejected. */
xValidationResult = prvValidateDefenderResponse( pxPublishInfo->pPayload,
pxPublishInfo->payloadLength );
if( xValidationResult == true )
{
LogError( ( "The defender report was rejected by the service. Response: %.*s.",
( int ) pxPublishInfo->payloadLength,
( const char * ) pxPublishInfo->pPayload ) );
xReportStatus = ReportStatusRejected;
}
}
else
{
LogError( ( "Unexpected defender API : %d.", xApi ) );
}
}
else
{
LogError( ( "Unexpected publish message received. Topic: %.*s, Payload: %.*s.",
( int ) pxPublishInfo->topicNameLength,
( const char * ) pxPublishInfo->pTopicName,
( int ) pxPublishInfo->payloadLength,
( const char * ) ( pxPublishInfo->pPayload ) ) );
}
}
else
{
vHandleOtherIncomingPacket( pxPacketInfo, pxDeserializedInfo->packetIdentifier );
}
}
/*-----------------------------------------------------------*/
static bool prvCollectDeviceMetrics( void )
{
bool xStatus = false;
eMetricsCollectorStatus eMetricsCollectorStatus;
uint32_t ulNumOpenTcpPorts = 0UL, ulNumOpenUdpPorts = 0UL, ulNumEstablishedConnections = 0UL;
/* Collect bytes and packets sent and received. */
eMetricsCollectorStatus = eGetNetworkStats( &( xNetworkStats ) );
if( eMetricsCollectorStatus != eMetricsCollectorSuccess )
{
LogError( ( "xGetNetworkStats failed. Status: %d.",
eMetricsCollectorStatus ) );
}
/* Collect a list of open TCP ports. */
if( eMetricsCollectorStatus == eMetricsCollectorSuccess )
{
eMetricsCollectorStatus = eGetOpenTcpPorts( &( pusOpenTcpPorts[ 0 ] ),
democonfigOPEN_TCP_PORTS_ARRAY_SIZE,
&( ulNumOpenTcpPorts ) );
if( eMetricsCollectorStatus != eMetricsCollectorSuccess )
{
LogError( ( "xGetOpenTcpPorts failed. Status: %d.",
eMetricsCollectorStatus ) );
}
}
/* Collect a list of open UDP ports. */
if( eMetricsCollectorStatus == eMetricsCollectorSuccess )
{
eMetricsCollectorStatus = eGetOpenUdpPorts( &( pusOpenUdpPorts[ 0 ] ),
democonfigOPEN_UDP_PORTS_ARRAY_SIZE,
&( ulNumOpenUdpPorts ) );
if( eMetricsCollectorStatus != eMetricsCollectorSuccess )
{
LogError( ( "xGetOpenUdpPorts failed. Status: %d.",
eMetricsCollectorStatus ) );
}
}
/* Collect a list of established connections. */
if( eMetricsCollectorStatus == eMetricsCollectorSuccess )
{
eMetricsCollectorStatus = eGetEstablishedConnections( &( pxEstablishedConnections[ 0 ] ),
democonfigESTABLISHED_CONNECTIONS_ARRAY_SIZE,
&( ulNumEstablishedConnections ) );
if( eMetricsCollectorStatus != eMetricsCollectorSuccess )
{
LogError( ( "GetEstablishedConnections failed. Status: %d.",
eMetricsCollectorStatus ) );
}
}
/* Populate device metrics. */
if( eMetricsCollectorStatus == eMetricsCollectorSuccess )
{
xStatus = true;
xDeviceMetrics.pxNetworkStats = &( xNetworkStats );
xDeviceMetrics.pusOpenTcpPortsArray = &( pusOpenTcpPorts[ 0 ] );
xDeviceMetrics.ulOpenTcpPortsArrayLength = ulNumOpenTcpPorts;
xDeviceMetrics.pusOpenUdpPortsArray = &( pusOpenUdpPorts[ 0 ] );
xDeviceMetrics.ulOpenUdpPortsArrayLength = ulNumOpenUdpPorts;
xDeviceMetrics.pxEstablishedConnectionsArray = &( pxEstablishedConnections[ 0 ] );
xDeviceMetrics.ulEstablishedConnectionsArrayLength = ulNumEstablishedConnections;
}
return xStatus;
}
/*-----------------------------------------------------------*/
static bool prvGenerateDeviceMetricsReport( uint32_t * pulOutReportLength )
{
bool xStatus = false;
eReportBuilderStatus eReportBuilderStatus;
/* Generate the metrics report in the format expected by the AWS IoT Device
* Defender Service. */
eReportBuilderStatus = eGenerateJsonReport( &( pcDeviceMetricsJsonReport[ 0 ] ),
democonfigDEVICE_METRICS_REPORT_BUFFER_SIZE,
&( xDeviceMetrics ),
democonfigDEVICE_METRICS_REPORT_MAJOR_VERSION,
democonfigDEVICE_METRICS_REPORT_MINOR_VERSION,
ulReportId,
pulOutReportLength );
if( eReportBuilderStatus != eReportBuilderSuccess )
{
LogError( ( "GenerateJsonReport failed. Status: %d.",
eReportBuilderStatus ) );
}
else
{
LogDebug( ( "Generated Report: %.*s.",
*pulOutReportLength,
&( pcDeviceMetricsJsonReport[ 0 ] ) ) );
xStatus = true;
}
return xStatus;
}
/*-----------------------------------------------------------*/
static bool prvSubscribeToDefenderTopics( void )
{
bool xStatus = false;
/* Subscribe to defender topic for responses for accepted reports. */
xStatus = xSubscribeToTopic( &xMqttContext,
DEFENDER_API_JSON_ACCEPTED( democonfigTHING_NAME ),
DEFENDER_API_LENGTH_JSON_ACCEPTED( THING_NAME_LENGTH ) );
if( xStatus == false )
{
LogError( ( "Failed to subscribe to defender topic: %.*s.",
DEFENDER_API_LENGTH_JSON_ACCEPTED( THING_NAME_LENGTH ),
DEFENDER_API_JSON_ACCEPTED( democonfigTHING_NAME ) ) );
}
if( xStatus == true )
{
/* Subscribe to defender topic for responses for rejected reports. */
xStatus = xSubscribeToTopic( &xMqttContext,
DEFENDER_API_JSON_REJECTED( democonfigTHING_NAME ),
DEFENDER_API_LENGTH_JSON_REJECTED( THING_NAME_LENGTH ) );
if( xStatus == false )
{
LogError( ( "Failed to subscribe to defender topic: %.*s.",
DEFENDER_API_LENGTH_JSON_REJECTED( THING_NAME_LENGTH ),
DEFENDER_API_JSON_REJECTED( democonfigTHING_NAME ) ) );
}
}
return xStatus;
}
/*-----------------------------------------------------------*/
static bool prvUnsubscribeFromDefenderTopics( void )
{
bool xStatus = false;
/* Unsubscribe from defender accepted topic. */
xStatus = xUnsubscribeFromTopic( &xMqttContext,
DEFENDER_API_JSON_ACCEPTED( democonfigTHING_NAME ),
DEFENDER_API_LENGTH_JSON_ACCEPTED( THING_NAME_LENGTH ) );
if( xStatus == true )
{
/* Unsubscribe from defender rejected topic. */
xStatus = xUnsubscribeFromTopic( &xMqttContext,
DEFENDER_API_JSON_REJECTED( democonfigTHING_NAME ),
DEFENDER_API_LENGTH_JSON_REJECTED( THING_NAME_LENGTH ) );
}
return xStatus;
}
/*-----------------------------------------------------------*/
static bool prvPublishDeviceMetricsReport( uint32_t reportLength )
{
return xPublishToTopic( &xMqttContext,
DEFENDER_API_JSON_PUBLISH( democonfigTHING_NAME ),
DEFENDER_API_LENGTH_JSON_PUBLISH( THING_NAME_LENGTH ),
&( pcDeviceMetricsJsonReport[ 0 ] ),
reportLength );
}
/*-----------------------------------------------------------*/
/**
* @brief Create the task that demonstrates the Device Defender library API via
* a mutually authenticated MQTT connection with the AWS IoT broker.
*/
void vStartDefenderDemo( void )
{
/* This example uses a single application task, which shows that how to use
* Device Defender library to generate and validate AWS IoT Device Defender
* MQTT topics, and use the coreMQTT library to communicate with the AWS
* IoT Device Defender service. */
xTaskCreate( prvDefenderDemoTask, /* Function that implements the task. */
"DemoTask", /* Text name for the task - only used for debugging. */
democonfigDEMO_STACKSIZE, /* Size of stack (in words, not bytes) to allocate for the task. */
NULL, /* Task parameter - not used in this case. */
tskIDLE_PRIORITY, /* Task priority, must be between 0 and configMAX_PRIORITIES - 1. */
NULL ); /* Used to pass out a handle to the created task - not used in this case. */
}
/*-----------------------------------------------------------*/
void prvDefenderDemoTask( void * pvParameters )
{
bool xStatus = false;
BaseType_t xExitStatus = EXIT_FAILURE;
uint32_t ulReportLength = 0UL, i, ulMqttSessionEstablished = 0UL;
/* Remove compiler warnings about unused parameters. */
( void ) pvParameters;
/* Start with report not received. */
xReportStatus = ReportStatusNotReceived;
/* Set a report Id to be used.
*
* !!!NOTE!!!
* This demo sets the report ID to xTaskGetTickCount(), which may collide
* if the device is reset. Reports for a Thing with a previously used
* report ID will be assumed to be duplicates and discarded by the Device
* Defender service. The report ID needs to be unique per report sent with
* a given Thing. We recommend using an increasing unique id such as the
* current timestamp. */
ulReportId = ( uint32_t ) xTaskGetTickCount();
/****************************** Connect. ******************************/
/* Attempts to connect to the AWS IoT MQTT broker over TCP. If the
* connection fails, retries after a timeout. Timeout value will
* exponentially increase until maximum attempts are reached. */
LogInfo( ( "Establishing MQTT session..." ) );
xStatus = xEstablishMqttSession( &xMqttContext,
&xNetworkContext,
&xBuffer,
prvPublishCallback );
if( xStatus != true )
{
LogError( ( "Failed to establish MQTT session." ) );
}
else
{
ulMqttSessionEstablished = 1;
}
/******************** Subscribe to Defender topics. *******************/
/* Attempt to subscribe to the AWS IoT Device Defender topics.
* Since this demo is using JSON, in prvSubscribeToDefenderTopics() we
* subscribe to the topics to which accepted and rejected responses are
* received from after publishing a JSON report.
*
* This demo uses a constant #democonfigTHING_NAME known at compile time
* therefore we use macros to assemble defender topic strings.
* If the thing name is known at run time, then we could use the API
* #Defender_GetTopic instead.
*
* For example, for the JSON accepted responses topic:
*
* #define TOPIC_BUFFER_LENGTH ( 256U )
*
* // Every device should have a unique thing name registered with AWS IoT Core.
* // This example assumes that the device has a unique serial number which is
* // registered as the thing name with AWS IoT Core.
* const char * pThingName = GetDeviceSerialNumber();
* uint16_t thingNameLength = ( uint16_t )strlen( pThingname );
* char topicBuffer[ TOPIC_BUFFER_LENGTH ] = { 0 };
* uint16_t topicLength = 0;
* DefenderStatus_t status = DefenderSuccess;
*
* status = Defender_GetTopic( &( topicBuffer[ 0 ] ),
* TOPIC_BUFFER_LENGTH,
* pThingName,
* thingNameLength,
* DefenderJsonReportAccepted,
* &( topicLength ) );
*/
if( xStatus == true )
{
LogInfo( ( "Subscribing to defender topics..." ) );
xStatus = prvSubscribeToDefenderTopics();
if( xStatus != true )
{
LogError( ( "Failed to subscribe to defender topics." ) );
}
}
/*********************** Collect device metrics. **********************/
/* We then need to collect the metrics that will be sent to the AWS IoT
* Device Defender service. This demo uses the functions declared in
* in metrics_collector.h to collect network metrics. For this demo, the
* implementation of these functions are in metrics_collector.c and
* collects metrics using tcp_netstat utility for FreeRTOS+TCP. */
if( xStatus == true )
{
LogInfo( ( "Collecting device metrics..." ) );
xStatus = prvCollectDeviceMetrics();
if( xStatus != true )
{
LogError( ( "Failed to collect device metrics." ) );
}
}
/********************** Generate defender report. *********************/
/* The data needs to be incorporated into a JSON formatted report,
* which follows the format expected by the Device Defender service.
* This format is documented here:
* https://docs.aws.amazon.com/iot/latest/developerguide/detect-device-side-metrics.html
*/
if( xStatus == true )
{
LogInfo( ( "Generating device defender report..." ) );
xStatus = prvGenerateDeviceMetricsReport( &( ulReportLength ) );
if( xStatus != true )
{
LogError( ( "Failed to generate device defender report." ) );
}
}
/********************** Publish defender report. **********************/
/* The report is then published to the Device Defender service. This report
* is published to the MQTT topic for publishing JSON reports. As before,
* we use the defender library macros to create the topic string, though
* #Defender_GetTopic could be used if the Thing name is acquired at
* run time */
if( xStatus == true )
{
LogInfo( ( "Publishing device defender report..." ) );
xStatus = prvPublishDeviceMetricsReport( ulReportLength );
if( xStatus != true )
{
LogError( ( "Failed to publish device defender report." ) );
}
}
/* Wait for the response to our report. Response will be handled by the
* callback passed to xEstablishMqttSession() earlier.
* The callback will verify that the MQTT messages received are from the
* defender service's topic. Based on whether the response comes from
* the accepted or rejected topics, it updates xReportStatus. */
if( xStatus == true )
{
for( i = 0; i < DEFENDER_RESPONSE_WAIT_SECONDS; i++ )
{
( void ) xProcessLoop( &xMqttContext );
/* xReportStatus is updated in the prvPublishCallback. */
if( xReportStatus != ReportStatusNotReceived )
{
break;
}
/* Wait for sometime between consecutive executions of ProcessLoop. */
vTaskDelay( 1000 / portTICK_PERIOD_MS );
}
}
if( xReportStatus == ReportStatusNotReceived )
{
LogError( ( "Failed to receive response from AWS IoT Device Defender Service." ) );
xStatus = false;
}
/**************************** Disconnect. *****************************/
/* Unsubscribe and disconnect if MQTT session was established. Per the MQTT
* protocol spec, it is okay to send UNSUBSCRIBE even if no corresponding
* subscription exists on the broker. Therefore, it is okay to attempt
* unsubscribe even if one more subscribe failed earlier. */
if( ulMqttSessionEstablished == 1 )
{
LogInfo( ( "Unsubscribing from defender topics..." ) );
xStatus = prvUnsubscribeFromDefenderTopics();
if( xStatus != true )
{
LogError( ( "Failed to unsubscribe from defender topics." ) );
}
LogInfo( ( "Closing MQTT session..." ) );
( void ) xDisconnectMqttSession( &xMqttContext,
&xNetworkContext );
}
/****************************** Finish. ******************************/
if( ( xStatus == true ) && ( xReportStatus == ReportStatusAccepted ) )
{
xExitStatus = EXIT_SUCCESS;
LogInfo( ( "Demo completed successfully." ) );
}
else
{
LogError( ( "Demo failed." ) );
}
/* Delete this task. */
LogInfo( ( "Deleting Defender Demo task." ) );
vTaskDelete( NULL );
}
/*-----------------------------------------------------------*/

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/*
* 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 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 0
#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 0
#define configENABLE_BACKWARD_COMPATIBILITY 1
#define configSUPPORT_STATIC_ALLOCATION 1
/* Hook function related definitions. */
#define configUSE_TICK_HOOK 0
#define configUSE_IDLE_HOOK 0
#define configUSE_MALLOC_FAILED_HOOK 0
#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 configuration options. */
#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. **********************************/
/* 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 to which logging is sent should UDP logging be enabled. */
#define configUDP_LOGGING_ADDR0 192
#define configUDP_LOGGING_ADDR1 168
#define configUDP_LOGGING_ADDR2 0
#define configUDP_LOGGING_ADDR3 11
/* 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 0x11
#define configMAC_ADDR3 0x11
#define configMAC_ADDR4 0x11
#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 10
#define configIP_ADDR1 10
#define configIP_ADDR2 10
#define configIP_ADDR3 200
/* 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 in 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
/* 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,
... );
#define configPRINTF( X ) vLoggingPrintf X
#endif /* FREERTOS_CONFIG_H */

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@ -0,0 +1,311 @@
/*
* 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
#include "tcp_netstat.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 0
#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 ( 2000 )
#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME ( 5000 )
/* Include support for LLMNR: Link-local Multicast Name Resolution
* (non-Microsoft) */
#define ipconfigUSE_LLMNR ( 0 )
/* Include support for NBNS: NetBIOS Name Service (Microsoft) */
#define ipconfigUSE_NBNS ( 0 )
/* 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 ( 64 )
#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 ( 5000 / 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 ( 120000 / 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 ( 1 )
/* Use the TCP socket wake context with a callback. */
#define ipconfigSOCKET_HAS_USER_WAKE_CALLBACK_WITH_CONTEXT ( 1 )
/* USE_WIN: Let TCP use windowing mechanism. */
#define ipconfigUSE_TCP_WIN ( 1 )
/* 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 1200
/* 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 2
/* 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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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\pk_internal.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\platform.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\platform_time.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\platform_util.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\poly1305.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\psa_util.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ripemd160.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\rsa.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\rsa_internal.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\sha1.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\sha256.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\sha512.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
</ClInclude>
<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl_cache.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl_ciphersuites.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl_cookie.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl_internal.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl_ticket.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\ssl_tls13_keys.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<Filter>FreeRTOS+\mbedtls\include</Filter>
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<Filter>FreeRTOS+\mbedtls\include</Filter>
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<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\x509.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\x509_crl.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\x509_crt.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\ThirdParty\mbedtls\include\mbedtls\x509_csr.h">
<Filter>FreeRTOS+\mbedtls\include</Filter>
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<Filter>FreeRTOS+\mbedtls\include</Filter>
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<ClInclude Include="..\..\..\..\..\FreeRTOS-Plus\Source\Utilities\logging\logging_levels.h" />
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<ClInclude Include="defender_config.h" />
<ClInclude Include="metrics_collector.h" />
<ClInclude Include="report_builder.h" />
<ClInclude Include="..\..\Mqtt_Demo_Helpers\mqtt_demo_helpers.h" />
<ClInclude Include="..\..\..\..\Source\FreeRTOS-Plus-TCP\tools\tcp_utilities\include\tcp_netstat.h" />
<ClInclude Include="..\..\..\..\Source\AWS\device-defender\source\include\defender.h" />
</ItemGroup>
</Project>

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/*
* 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 CORE_MQTT_CONFIG_H
#define CORE_MQTT_CONFIG_H
/**************************************************/
/******* DO NOT CHANGE the following order ********/
/**************************************************/
/* Include logging header files and define logging macros in the following order:
* 1. Include the header file "logging_levels.h".
* 2. Define the LIBRARY_LOG_NAME and LIBRARY_LOG_LEVEL macros depending on
* the logging configuration for MQTT.
* 3. Include the header file "logging_stack.h", if logging is enabled for MQTT.
*/
#include "logging_levels.h"
/* Logging configuration for the MQTT library. */
#ifndef LIBRARY_LOG_NAME
#define LIBRARY_LOG_NAME "MQTT"
#endif
#ifndef LIBRARY_LOG_LEVEL
#define LIBRARY_LOG_LEVEL LOG_ERROR
#endif
/* Prototype for the function used to print to console on Windows simulator
* of FreeRTOS.
* The function prints to the console before the network is connected;
* then a UDP port after the network has connected. */
extern void vLoggingPrintf( const char * pcFormatString,
... );
/* Map the SdkLog macro to the logging function to enable logging
* on Windows simulator. */
#ifndef SdkLog
#define SdkLog( message ) vLoggingPrintf message
#endif
#include "logging_stack.h"
/************ End of logging configuration ****************/
/**
* @brief Determines the maximum number of MQTT PUBLISH messages, pending
* acknowledgement at a time, that are supported for incoming and outgoing
* direction of messages, separately.
*
* QoS 1 and 2 MQTT PUBLISHes require acknowledgement from the server before
* they can be completed. While they are awaiting the acknowledgement, the
* client must maintain information about their state. The value of this
* macro sets the limit on how many simultaneous PUBLISH states an MQTT
* context maintains, separately, for both incoming and outgoing direction of
* PUBLISHes.
*
* @note The MQTT context maintains separate state records for outgoing
* and incoming PUBLISHes, and thus, 2 * MQTT_STATE_ARRAY_MAX_COUNT amount
* of memory is statically allocated for the state records.
*/
#define MQTT_STATE_ARRAY_MAX_COUNT ( 10U )
/**
* @brief Number of milliseconds to wait for a ping response to a ping
* request as part of the keep-alive mechanism.
*
* If a ping response is not received before this timeout, then
* #MQTT_ProcessLoop will return #MQTTKeepAliveTimeout.
*/
#define MQTT_PINGRESP_TIMEOUT_MS ( 5000U )
#endif /* ifndef CORE_MQTT_CONFIG_H */

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/*
* 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 DEFENDER_CONFIG_H_
#define DEFENDER_CONFIG_H_
/**************************************************/
/******* DO NOT CHANGE the following order ********/
/**************************************************/
/* Include logging header files and define logging macros in the following order:
* 1. Include the header file "logging_levels.h".
* 2. Define the LIBRARY_LOG_NAME and LIBRARY_LOG_LEVEL macros.
* 3. Include the header file "logging_stack.h".
*/
#include "logging_levels.h"
/* Logging configuration for the Defender library. */
#ifndef LIBRARY_LOG_NAME
#define LIBRARY_LOG_NAME "Defender"
#endif
#ifndef LIBRARY_LOG_LEVEL
#define LIBRARY_LOG_LEVEL LOG_INFO
#endif
#include "logging_stack.h"
/************ End of logging configuration ****************/
#endif /* ifndef DEFENDER_CONFIG_H_ */

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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.29215.179
MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RTOSDemo", "WIN32.vcxproj", "{C686325E-3261-42F7-AEB1-DDE5280E1CEB}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{C686325E-3261-42F7-AEB1-DDE5280E1CEB}.Debug|Win32.ActiveCfg = Debug|Win32
{C686325E-3261-42F7-AEB1-DDE5280E1CEB}.Debug|Win32.Build.0 = Debug|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {150F08BF-9D61-4CC2-8DBF-1335172A1EA4}
EndGlobalSection
GlobalSection(TestCaseManagementSettings) = postSolution
CategoryFile = FreeRTOS_Plus_TCP_Minimal.vsmdi
EndGlobalSection
EndGlobal

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/*
* 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 DEMO_CONFIG_H
#define DEMO_CONFIG_H
/* FreeRTOS config include. */
#include "FreeRTOSConfig.h"
/**************************************************/
/******* DO NOT CHANGE the following order ********/
/**************************************************/
/* Include logging header files and define logging macros in the following order:
* 1. Include the header file "logging_levels.h".
* 2. Define the LIBRARY_LOG_NAME and LIBRARY_LOG_LEVEL macros depending on
* the logging configuration for DEMO.
* 3. Include the header file "logging_stack.h", if logging is enabled for DEMO.
*/
#include "logging_levels.h"
/* Logging configuration for the Demo. */
#ifndef LIBRARY_LOG_NAME
#define LIBRARY_LOG_NAME "DefenderDemo"
#endif
#ifndef LIBRARY_LOG_LEVEL
#define LIBRARY_LOG_LEVEL LOG_INFO
#endif
/* Prototype for the function used to print to console on Windows simulator
* of FreeRTOS.
* The function prints to the console before the network is connected;
* then a UDP port after the network has connected. */
extern void vLoggingPrintf( const char * pcFormatString,
... );
/* Map the SdkLog macro to the logging function to enable logging
* on Windows simulator. */
#ifndef SdkLog
#define SdkLog( message ) vLoggingPrintf message
#endif
#include "logging_stack.h"
/************ End of logging configuration ****************/
/**
* @brief The Thing resource registered on your AWS IoT account to use in the demo.
* A Thing resource is required to communicate with the AWS IoT Device Shadow service.
*
* @note The Things associated with your AWS account can be found in the
* AWS IoT console under Manage/Things, or using the ListThings REST API (that can
* be called with the AWS CLI command line tool).
*
* #define democonfigTHING_NAME "...insert here..."
*/
#ifndef democonfigCLIENT_IDENTIFIER
/**
* @brief The MQTT client identifier used in this example. Each client identifier
* must be unique so edit as required to ensure no two clients connecting to the
* same broker use the same client identifier.
*
* @note Appending __TIME__ to the client id string will reduce the possibility of a
* client id collision in the broker. Note that the appended time is the compilation
* time. This client id can cause collision, if more than one instance of the same
* binary is used at the same time to connect to the broker.
*/
#define democonfigCLIENT_IDENTIFIER "testClient"__TIME__
#endif
/**
* @brief The AWS IoT broker endpoint to connect to in the demo.
*
* @note Your AWS IoT Core endpoint can be found in the AWS IoT console under
* Settings/Custom Endpoint, or using the DescribeEndpoint REST API (that can
* be called with AWS CLI command line tool).
*
* #define democonfigMQTT_BROKER_ENDPOINT "...insert here..."
*/
/**
* @brief The port to use for the demo.
*
* In general, port 8883 is for secured MQTT connections.
*
* @note Port 443 requires use of the ALPN TLS extension with the ALPN protocol
* name. Using ALPN with this demo would require additional changes, including
* setting the `pAlpnProtos` member of the `NetworkCredentials_t` struct before
* forming the TLS connection. When using port 8883, ALPN is not required.
*
* #define democonfigMQTT_BROKER_PORT ( insert here. )
*/
/**
* @brief AWS root CA certificate.
*
* This certificate is used to identify the AWS IoT server and is publicly available.
* Refer to the link below.
* https://www.amazontrust.com/repository/AmazonRootCA1.pem
*
* @note This certificate should be PEM-encoded.
*
* Must include the PEM header and footer:
* "-----BEGIN CERTIFICATE-----\n"\
* "...base64 data...\n"\
* "-----END CERTIFICATE-----\n"
*
*/
/**
* @brief Client certificate.
*
* Please refer to the AWS documentation below for details
* regarding client authentication.
* https://docs.aws.amazon.com/iot/latest/developerguide/client-authentication.html
*
* @note This certificate should be PEM-encoded.
*
* Must include the PEM header and footer:
* "-----BEGIN CERTIFICATE-----\n"\
* "...base64 data...\n"\
* "-----END CERTIFICATE-----\n"
*
* #define democonfigCLIENT_CERTIFICATE_PEM "...insert here..."
*/
/**
* @brief Client's private key.
*
* Please refer to the AWS documentation below for details
* regarding client authentication.
* https://docs.aws.amazon.com/iot/latest/developerguide/client-authentication.html
*
* @note This private key should be PEM-encoded.
*
* Must include the PEM header and footer:
* "-----BEGIN RSA PRIVATE KEY-----\n"\
* "...base64 data...\n"\
* "-----END RSA PRIVATE KEY-----\n"
*
* #define democonfigCLIENT_PRIVATE_KEY_PEM "...insert here..."
*/
/**
* @brief The username value for authenticating client to the MQTT broker when
* username/password based client authentication is used.
*
* Please refer to the AWS IoT documentation below for
* details regarding client authentication with a username and password.
* https://docs.aws.amazon.com/iot/latest/developerguide/custom-authentication.html
* An authorizer setup needs to be done, as mentioned in the above link, to use
* username/password based client authentication.
*
* #define democonfigCLIENT_USERNAME "...insert here..."
*/
/**
* @brief The password value for authenticating client to the MQTT broker when
* username/password based client authentication is used.
*
* Please refer to the AWS IoT documentation below for
* details regarding client authentication with a username and password.
* https://docs.aws.amazon.com/iot/latest/developerguide/custom-authentication.html
* An authorizer setup needs to be done, as mentioned in the above link, to use
* username/password based client authentication.
*
* #define democonfigCLIENT_PASSWORD "...insert here..."
*/
/**
* @brief The name of the operating system that the application is running on.
* The current value is given as an example. Please update for your specific
* operating system.
*/
#define democonfigOS_NAME "FreeRTOS"
/**
* @brief The version of the operating system that the application is running
* on. The current value is given as an example. Please update for your specific
* operating system version.
*/
#define democonfigOS_VERSION tskKERNEL_VERSION_NUMBER
/**
* @brief The name of the hardware platform the application is running on. The
* current value is given as an example. Please update for your specific
* hardware platform.
*/
#define democonfigHARDWARE_PLATFORM_NAME "WinSim"
/**
* @brief The name of the MQTT library used and its version, following an "@"
* symbol.
*/
#define democonfigMQTT_LIB "core-mqtt@1.0.1"
/**
* @brief Set the stack size of the main demo task.
*
* In the Windows port, this stack only holds a structure. The actual
* stack is created by an operating system thread.
*/
#define democonfigDEMO_STACKSIZE configMINIMAL_STACK_SIZE
/**
* @brief Size of the network buffer for MQTT packets.
*/
#define democonfigNETWORK_BUFFER_SIZE ( 1024U )
/**
* @brief Size of the open TCP ports array.
*
* A maximum of these many open TCP ports will be sent in the device defender
* report.
*/
#define democonfigOPEN_TCP_PORTS_ARRAY_SIZE 10
/**
* @brief Size of the open UDP ports array.
*
* A maximum of these many open UDP ports will be sent in the device defender
* report.
*/
#define democonfigOPEN_UDP_PORTS_ARRAY_SIZE 10
/**
* @brief Size of the established connections array.
*
* A maximum of these many established connections will be sent in the device
* defender report.
*/
#define democonfigESTABLISHED_CONNECTIONS_ARRAY_SIZE 10
/**
* @brief Size of the buffer which contains the generated device defender report.
*
* If the generated report is larger than this, it is rejected.
*/
#define democonfigDEVICE_METRICS_REPORT_BUFFER_SIZE 1000
/**
* @brief Major version number of the device defender report.
*/
#define democonfigDEVICE_METRICS_REPORT_MAJOR_VERSION 1
/**
* @brief Minor version number of the device defender report.
*/
#define democonfigDEVICE_METRICS_REPORT_MINOR_VERSION 0
#endif /* DEMO_CONFIG_H */

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/*
* 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 https://www.FreeRTOS.org/iot-device-defender for configuration and usage instructions.
***/
/* Standard includes. */
#include <stdio.h>
#include <time.h>
#include <stdint.h>
/* Visual studio intrinsics used so the __debugbreak() function is available
* should an assert get hit. */
#include <intrin.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
/* TCP/IP stack includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Demo logging includes. */
#include "logging.h"
/* Demo Specific configs. */
#include "demo_config.h"
/*
* Prototypes for the demos that can be started from this project. Note the
* Defender demo is not actually started until the network is already, which is
* indicated by vApplicationIPNetworkEventHook() executing - hence
* vStartDefenderDemo() is called from inside vApplicationIPNetworkEventHook().
*/
extern void vStartDefenderDemo( void );
/*
* Just seeds the simple pseudo random number generator.
*
* !!! NOTE !!!
* This is not a secure method of generating random numbers and production
* devices should use a true random number generator (TRNG).
*/
static void prvSRand( UBaseType_t ulSeed );
/*
* Miscellaneous initialization including preparing the logging and seeding the
* random number generator.
*/
static void prvMiscInitialisation( 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 };
/* 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 UDP logging server
* address (see the configUDP_LOGGING_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;
/* 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 by the pseudo random number generator. */
static UBaseType_t ulNextRand;
/*-----------------------------------------------------------*/
int main( void )
{
/***
* See https://www.FreeRTOS.org/iot-device-shadow for configuration and usage instructions.
***/
/* Miscellaneous initialization including preparing the logging and seeding
* the random number generator. */
prvMiscInitialisation();
/* Initialize the network interface.
*
***NOTE*** Tasks that use the network are created in the network event hook
* when the network is connected and ready for use (see the implementation of
* vApplicationIPNetworkEventHook() below). 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 );
/* 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
* really applicable to the Win32 simulator port). */
for( ; ; )
{
__debugbreak();
}
}
/*-----------------------------------------------------------*/
/* Called by FreeRTOS+TCP when the network connects or disconnects. Disconnect
* events are only received if implemented in the MAC driver. */
void vApplicationIPNetworkEventHook( eIPCallbackEvent_t eNetworkEvent )
{
uint32_t ulIPAddress, ulNetMask, ulGatewayAddress, ulDNSServerAddress;
char cBuffer[ 16 ];
static BaseType_t xTasksAlreadyCreated = pdFALSE;
/* If the network has just come up...*/
if( eNetworkEvent == eNetworkUp )
{
/* Create the tasks that use the IP stack if they have not already been
* created. */
if( xTasksAlreadyCreated == pdFALSE )
{
/* Demos that use the network are created after the network is
* up. */
LogInfo( ( "---------STARTING DEMO---------\r\n" ) );
vStartDefenderDemo();
xTasksAlreadyCreated = pdTRUE;
}
/* Print out the network configuration, which may have come from a DHCP
* server. */
FreeRTOS_GetAddressConfiguration( &ulIPAddress, &ulNetMask, &ulGatewayAddress, &ulDNSServerAddress );
FreeRTOS_inet_ntoa( ulIPAddress, cBuffer );
LogInfo( ( "\r\n\r\nIP Address: %s\r\n", cBuffer ) );
FreeRTOS_inet_ntoa( ulNetMask, cBuffer );
LogInfo( ( "Subnet Mask: %s\r\n", cBuffer ) );
FreeRTOS_inet_ntoa( ulGatewayAddress, cBuffer );
LogInfo( ( "Gateway Address: %s\r\n", cBuffer ) );
FreeRTOS_inet_ntoa( ulDNSServerAddress, cBuffer );
LogInfo( ( "DNS Server Address: %s\r\n\r\n\r\n", cBuffer ) );
}
}
/*-----------------------------------------------------------*/
void vAssertCalled( const char * pcFile,
uint32_t ulLine )
{
volatile uint32_t ulBlockVariable = 0UL;
volatile char * pcFileName = ( volatile char * ) pcFile;
volatile uint32_t ulLineNumber = ulLine;
( void ) pcFileName;
( void ) ulLineNumber;
printf( "vAssertCalled( %s, %u\n", pcFile, ulLine );
/* Setting ulBlockVariable to a non-zero value in the debugger will allow
* this function to be exited. */
taskDISABLE_INTERRUPTS();
{
while( ulBlockVariable == 0UL )
{
__debugbreak();
}
}
taskENABLE_INTERRUPTS();
}
/*-----------------------------------------------------------*/
UBaseType_t uxRand( void )
{
const uint32_t ulMultiplier = 0x015a4e35UL, ulIncrement = 1UL;
/*
* Utility function to generate a pseudo random number.
*
* !!!NOTE!!!
* This is not a secure method of generating a random number. Production
* devices should use a True Random Number Generator (TRNG).
*/
ulNextRand = ( ulMultiplier * ulNextRand ) + ulIncrement;
return( ( int ) ( ulNextRand >> 16UL ) & 0x7fffUL );
}
/*-----------------------------------------------------------*/
static void prvSRand( UBaseType_t ulSeed )
{
/* Utility function to seed the pseudo random number generator. */
ulNextRand = ulSeed;
}
/*-----------------------------------------------------------*/
static void prvMiscInitialisation( void )
{
time_t xTimeNow;
uint32_t ulLoggingIPAddress;
ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
/*
* Seed random number generator.
*
* !!!NOTE!!!
* This is not a secure method of generating a random number. Production
* devices should use a True Random Number Generator (TRNG).
*/
time( &xTimeNow );
LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
prvSRand( ( uint32_t ) xTimeNow );
LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
}
/*-----------------------------------------------------------*/
#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 ) */
/*-----------------------------------------------------------*/
/*
* Callback that provides the inputs necessary to generate a randomized TCP
* Initial Sequence Number per RFC 6528. THIS IS ONLY A DUMMY IMPLEMENTATION
* THAT RETURNS A PSEUDO RANDOM NUMBER SO IS NOT INTENDED FOR USE IN PRODUCTION
* SYSTEMS.
*/
extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
uint16_t usSourcePort,
uint32_t ulDestinationAddress,
uint16_t usDestinationPort )
{
( void ) ulSourceAddress;
( void ) usSourcePort;
( void ) ulDestinationAddress;
( void ) usDestinationPort;
return uxRand();
}
/*-----------------------------------------------------------*/
/*
* Set *pulNumber to a random number, and return pdTRUE. When the random number
* generator is broken, it shall return pdFALSE.
* The macros ipconfigRAND32() and configRAND32() are not in use
* anymore in FreeRTOS+TCP.
*
* 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;
}
/*-----------------------------------------------------------*/
/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
* implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
* used by the Idle task. */
void vApplicationGetIdleTaskMemory( StaticTask_t ** ppxIdleTaskTCBBuffer,
StackType_t ** ppxIdleTaskStackBuffer,
uint32_t * pulIdleTaskStackSize )
{
/* If the buffers to be provided to the Idle task are declared inside this
* function then they must be declared static - otherwise they will be allocated on
* the stack and so not exists after this function exits. */
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];
/* Pass out a pointer to the StaticTask_t structure in which the Idle task's
* state will be stored. */
*ppxIdleTaskTCBBuffer = &xIdleTaskTCB;
/* Pass out the array that will be used as the Idle task's stack. */
*ppxIdleTaskStackBuffer = uxIdleTaskStack;
/* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
* Note that, as the array is necessarily of type StackType_t,
* configMINIMAL_STACK_SIZE is specified in words, not bytes. */
*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
/*-----------------------------------------------------------*/
/* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
* application must provide an implementation of vApplicationGetTimerTaskMemory()
* to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t ** ppxTimerTaskTCBBuffer,
StackType_t ** ppxTimerTaskStackBuffer,
uint32_t * pulTimerTaskStackSize )
{
/* If the buffers to be provided to the Timer task are declared inside this
* function then they must be declared static - otherwise they will be allocated on
* the stack and so not exists after this function exits. */
static StaticTask_t xTimerTaskTCB;
static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];
/* Pass out a pointer to the StaticTask_t structure in which the Timer
* task's state will be stored. */
*ppxTimerTaskTCBBuffer = &xTimerTaskTCB;
/* Pass out the array that will be used as the Timer task's stack. */
*ppxTimerTaskStackBuffer = uxTimerTaskStack;
/* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
* Note that, as the array is necessarily of type StackType_t,
* configMINIMAL_STACK_SIZE is specified in words, not bytes. */
*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
}
/*-----------------------------------------------------------*/

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/*
* Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*
* This file is provided under the Apache License 2.0, or the
* GNU General Public License v2.0 or later.
*
* **********
* Apache License 2.0:
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* **********
*
* **********
* GNU General Public License v2.0 or later:
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* **********
*
* This repository uses Mbed TLS under Apache 2.0
*/
/* This file configures mbed TLS for FreeRTOS. */
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* FreeRTOS include. */
#include "FreeRTOS.h"
/* Generate errors if deprecated functions are used. */
#define MBEDTLS_DEPRECATED_REMOVED
/* Place AES tables in ROM. */
#define MBEDTLS_AES_ROM_TABLES
/* Enable the following cipher modes. */
#define MBEDTLS_CIPHER_MODE_CBC
#define MBEDTLS_CIPHER_MODE_CFB
#define MBEDTLS_CIPHER_MODE_CTR
/* Enable the following cipher padding modes. */
#define MBEDTLS_CIPHER_PADDING_PKCS7
#define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS
#define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN
#define MBEDTLS_CIPHER_PADDING_ZEROS
/* Cipher suite configuration. */
#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
#define MBEDTLS_ECP_NIST_OPTIM
#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
/* Enable all SSL alert messages. */
#define MBEDTLS_SSL_ALL_ALERT_MESSAGES
/* Enable the following SSL features. */
#define MBEDTLS_SSL_ENCRYPT_THEN_MAC
#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET
#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
#define MBEDTLS_SSL_PROTO_TLS1_2
#define MBEDTLS_SSL_ALPN
#define MBEDTLS_SSL_SERVER_NAME_INDICATION
/* Check certificate key usage. */
#define MBEDTLS_X509_CHECK_KEY_USAGE
#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
/* Disable platform entropy functions. */
#define MBEDTLS_NO_PLATFORM_ENTROPY
/* Enable the following mbed TLS features. */
#define MBEDTLS_AES_C
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_ASN1_WRITE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_BIGNUM_C
#define MBEDTLS_CIPHER_C
#define MBEDTLS_CTR_DRBG_C
#define MBEDTLS_ECDH_C
#define MBEDTLS_ECDSA_C
#define MBEDTLS_ECP_C
#define MBEDTLS_ENTROPY_C
#define MBEDTLS_GCM_C
#define MBEDTLS_MD_C
#define MBEDTLS_OID_C
#define MBEDTLS_PEM_PARSE_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_PKCS1_V15
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_RSA_C
#define MBEDTLS_SHA1_C
#define MBEDTLS_SHA256_C
#define MBEDTLS_SSL_CLI_C
#define MBEDTLS_SSL_TLS_C
#define MBEDTLS_THREADING_ALT
#define MBEDTLS_THREADING_C
#define MBEDTLS_X509_USE_C
#define MBEDTLS_X509_CRT_PARSE_C
/* Set the memory allocation functions on FreeRTOS. */
void * mbedtls_platform_calloc( size_t nmemb,
size_t size );
void mbedtls_platform_free( void * ptr );
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_PLATFORM_CALLOC_MACRO mbedtls_platform_calloc
#define MBEDTLS_PLATFORM_FREE_MACRO mbedtls_platform_free
/* The network send and receive functions on FreeRTOS. */
int mbedtls_platform_send( void * ctx,
const unsigned char * buf,
size_t len );
int mbedtls_platform_recv( void * ctx,
unsigned char * buf,
size_t len );
/* The entropy poll function. */
int mbedtls_platform_entropy_poll( void * data,
unsigned char * output,
size_t len,
size_t * olen );
#include "mbedtls/check_config.h"
#endif /* ifndef MBEDTLS_CONFIG_H */

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@ -0,0 +1,247 @@
/*
* 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
*
*/
/**
* @file metrics_collector.c
*
* @brief Functions used by the defender demo to collect metrics on the
* device's open ports and sockets. FreeRTOS+TCP tcp_netstat utility
* is used to collect this metrics.
*/
/* Standard includes. */
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "FreeRTOS_IP.h"
/* FreeRTOS+TCP tcp_netstat utility include. */
#include "tcp_netstat.h"
/* Demo config. */
#include "demo_config.h"
/* Interface include. */
#include "metrics_collector.h"
/*-----------------------------------------------------------*/
eMetricsCollectorStatus eGetNetworkStats( NetworkStats_t * pxOutNetworkStats )
{
eMetricsCollectorStatus eStatus = eMetricsCollectorSuccess;
MetricsType_t xMetrics = { 0 };
BaseType_t xMetricsStatus = 0;
configASSERT( pxOutNetworkStats != NULL );
if( eStatus == eMetricsCollectorSuccess )
{
/* Start with everything as zero. */
memset( pxOutNetworkStats, 0, sizeof( NetworkStats_t ) );
/* Get metrics from FreeRTOS+TCP tcp_netstat utility. */
xMetricsStatus = vGetMetrics( &xMetrics );
if( xMetricsStatus != 0 )
{
eStatus = eMetricsCollectorCollectionFailed;
}
}
/* Fill our response with values gotten from FreeRTOS+TCP. */
if( eStatus == eMetricsCollectorSuccess )
{
pxOutNetworkStats->ulBytesReceived = xMetrics.xInput.uxByteCount;
pxOutNetworkStats->ulPacketsReceived = xMetrics.xInput.uxPacketCount;
pxOutNetworkStats->ulBytesSent = xMetrics.XOutput.uxByteCount;
pxOutNetworkStats->ulPacketsSent = xMetrics.XOutput.uxPacketCount;
}
return eStatus;
}
/*-----------------------------------------------------------*/
eMetricsCollectorStatus eGetOpenTcpPorts( uint16_t * pusOutTcpPortsArray,
uint32_t ulTcpPortsArrayLength,
uint32_t * pulOutNumTcpOpenPorts )
{
eMetricsCollectorStatus eStatus = eMetricsCollectorSuccess;
MetricsType_t xMetrics = { 0 };
BaseType_t xMetricsStatus = 0;
/* pusOutTcpPortsArray can be NULL. */
configASSERT( pulOutNumTcpOpenPorts != NULL );
if( eStatus == eMetricsCollectorSuccess )
{
/* Get metrics from FreeRTOS+TCP tcp_netstat utility. */
xMetricsStatus = vGetMetrics( &xMetrics );
if( xMetricsStatus != 0 )
{
eStatus = eMetricsCollectorCollectionFailed;
}
}
if( eStatus == eMetricsCollectorSuccess )
{
/* Set the out value for number of open TCP ports. */
*pulOutNumTcpOpenPorts = xMetrics.xTCPPortList.uxCount;
/* Fill the output array with as many TCP ports as will fit in the
* given array. */
if( pusOutTcpPortsArray != NULL )
{
/* Lower the amount of ports copied if less are open than will fit
* in the given array. */
if( xMetrics.xTCPPortList.uxCount < ulTcpPortsArrayLength )
{
ulTcpPortsArrayLength = xMetrics.xTCPPortList.uxCount;
}
memcpy( pusOutTcpPortsArray, &xMetrics.xTCPPortList.usTCPPortList, ulTcpPortsArrayLength * sizeof( uint16_t ) );
}
}
return eMetricsCollectorSuccess;
}
/*-----------------------------------------------------------*/
eMetricsCollectorStatus eGetOpenUdpPorts( uint16_t * pusOutUdpPortsArray,
uint32_t ulUdpPortsArrayLength,
uint32_t * pulOutNumUdpOpenPorts )
{
eMetricsCollectorStatus eStatus = eMetricsCollectorSuccess;
MetricsType_t xMetrics = { 0 };
BaseType_t xMetricsStatus = 0;
/* pusOutUdpPortsArray can be NULL. */
configASSERT( pulOutNumUdpOpenPorts != NULL );
if( eStatus == eMetricsCollectorSuccess )
{
/* Get metrics from FreeRTOS+TCP tcp_netstat utility. */
xMetricsStatus = vGetMetrics( &xMetrics );
if( xMetricsStatus != 0 )
{
eStatus = eMetricsCollectorCollectionFailed;
}
}
if( eStatus == eMetricsCollectorSuccess )
{
*pulOutNumUdpOpenPorts = xMetrics.xUDPPortList.uxCount;
/* Fill the output array with as many UDP ports as will fit in the
* given array. */
if( pusOutUdpPortsArray != NULL )
{
/* Lower the amount of ports copied if less are open than will fit
* in the given array. */
if( xMetrics.xUDPPortList.uxCount < ulUdpPortsArrayLength )
{
ulUdpPortsArrayLength = xMetrics.xUDPPortList.uxCount;
}
memcpy( pusOutUdpPortsArray, &xMetrics.xUDPPortList.usUDPPortList, ulUdpPortsArrayLength * sizeof( uint16_t ) );
}
}
return eMetricsCollectorSuccess;
}
/*-----------------------------------------------------------*/
eMetricsCollectorStatus eGetEstablishedConnections( Connection_t * pxOutConnectionsArray,
uint32_t ulConnectionsArrayLength,
uint32_t * pulOutNumEstablishedConnections )
{
eMetricsCollectorStatus eStatus = eMetricsCollectorSuccess;
MetricsType_t xMetrics = { 0 };
BaseType_t xMetricsStatus = 0;
uint32_t ulLocalIp = 0UL;
/* pxOutConnectionsArray can be NULL. */
configASSERT( pulOutNumEstablishedConnections != NULL );
if( eStatus == eMetricsCollectorSuccess )
{
/* Get metrics from FreeRTOS+TCP tcp_netstat utility. */
xMetricsStatus = vGetMetrics( &xMetrics );
if( xMetricsStatus != 0 )
{
eStatus = eMetricsCollectorCollectionFailed;
}
}
if( eStatus == eMetricsCollectorSuccess )
{
/* We consider only TCP sockets for open connections. */
*pulOutNumEstablishedConnections = xMetrics.xTCPSocketList.uxCount;
/* Fill the output array with as many TCP socket infos as will fit in
* the given array. */
if( pxOutConnectionsArray != NULL )
{
/* Get local IP as the tcp_netstat utility does not give it. */
ulLocalIp = FreeRTOS_GetIPAddress();
/* Lower the amount of socket infos populated if less are open than will fit
* in the given array. */
if( xMetrics.xTCPSocketList.uxCount < ulConnectionsArrayLength )
{
ulConnectionsArrayLength = xMetrics.xTCPSocketList.uxCount;
}
/* If xMetrics.xTCPSocketList.uxCount > ulConnectionsArrayLength, we
* return the first ulConnectionsArrayLength ports. */
while( ulConnectionsArrayLength > 0 )
{
ulConnectionsArrayLength--;
pxOutConnectionsArray[ ulConnectionsArrayLength ].ulLocalIp = ulLocalIp;
pxOutConnectionsArray[ ulConnectionsArrayLength ].usLocalPort =
xMetrics.xTCPSocketList.xTCPList[ ulConnectionsArrayLength ].usLocalPort;
pxOutConnectionsArray[ ulConnectionsArrayLength ].ulRemoteIp =
xMetrics.xTCPSocketList.xTCPList[ ulConnectionsArrayLength ].ulRemoteIP;
pxOutConnectionsArray[ ulConnectionsArrayLength ].usRemotePort =
xMetrics.xTCPSocketList.xTCPList[ ulConnectionsArrayLength ].usRemotePort;
}
}
}
return eStatus;
}
/*-----------------------------------------------------------*/

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@ -0,0 +1,144 @@
/*
* 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
*
*/
/**
* @file metrics_collector.h
*
* @brief Functions used by the defender demo to collect metrics on the
* device's open ports and sockets.
*/
#ifndef METRICS_COLLECTOR_H_
#define METRICS_COLLECTOR_H_
/**
* @brief Return codes from metrics collector APIs.
*/
typedef enum
{
eMetricsCollectorSuccess = 0,
eMetricsCollectorBadParameter,
eMetricsCollectorCollectionFailed
} eMetricsCollectorStatus;
/**
* @brief Represents network stats.
*/
typedef struct NetworkStats
{
uint32_t ulBytesReceived; /**< Number of bytes received. */
uint32_t ulBytesSent; /**< Number of bytes sent. */
uint32_t ulPacketsReceived; /**< Number of packets (ethernet frames) received. */
uint32_t ulPacketsSent; /**< Number of packets (ethernet frames) sent. */
} NetworkStats_t;
/**
* @brief Represents a network connection.
*/
typedef struct Connection
{
uint32_t ulLocalIp;
uint32_t ulRemoteIp;
uint16_t usLocalPort;
uint16_t usRemotePort;
} Connection_t;
/**
* @brief Get network stats.
*
* This function returns the network stats.
*
* @param[out] pxOutNetworkStats The network stats.
*
* @return #MetricsCollectorSuccess if the network stats are successfully obtained;
* #MetricsCollectorBadParameter if invalid parameters are passed;
* #MetricsCollectorCollectionFailed if the collection methods failed.
*/
eMetricsCollectorStatus eGetNetworkStats( NetworkStats_t * pxOutNetworkStats );
/**
* @brief Get a list of the open TCP ports.
*
* This function finds the open TCP ports. It can be called with
* @p pusOutTcpPortsArray NULL to get the number of the open TCP ports.
*
* @param[out] pusOutTcpPortsArray The array to write the open TCP ports into. This
* can be NULL, if only the number of open ports is needed.
* @param[in] ulTcpPortsArrayLength Length of the pusOutTcpPortsArray, if it is not
* NULL.
* @param[out] pulOutNumTcpOpenPorts Number of the open TCP ports.
*
* @return #MetricsCollectorSuccess if open TCP ports are successfully obtained;
* #MetricsCollectorBadParameter if invalid parameters are passed;
* #MetricsCollectorCollectionFailed if the collection methods failed.
*/
eMetricsCollectorStatus eGetOpenTcpPorts( uint16_t * pusOutTcpPortsArray,
uint32_t ulTcpPortsArrayLength,
uint32_t * pulOutNumTcpOpenPorts );
/**
* @brief Get a list of the open UDP ports.
*
* This function finds the open UDP ports. It can be called with
* @p pusOutUdpPortsArray NULL to get the number of the open UDP ports.
*
* @param[out] pusOutUdpPortsArray The array to write the open UDP ports into. Can
* be NULL, if only number of open ports is needed.
* @param[in] ulUdpPortsArrayLength Length of the pusOutUdpPortsArray, if it is not
* NULL.
* @param[out] pulOutNumUdpOpenPorts Number of the open UDP ports.
*
* @return #MetricsCollectorSuccess if open UDP ports are successfully obtained;
* #MetricsCollectorBadParameter if invalid parameters are passed;
* #MetricsCollectorCollectionFailed if the collection methods failed.
*/
eMetricsCollectorStatus eGetOpenUdpPorts( uint16_t * pusOutUdpPortsArray,
uint32_t ulUdpPortsArrayLength,
uint32_t * pulOutNumUdpOpenPorts );
/**
* @brief Get a list of established connections.
*
* This function finds the established TCP connections.
* It can be called with @p pxOutConnectionsArray NULL to get the number of
* established connections.
*
* @param[out] pxOutConnectionsArray The array to write the established connections
* into. This can be NULL, if only the number of established connections is
* needed.
* @param[in] ulConnectionsArrayLength Length of the pxOutConnectionsArray, if it
* is not NULL.
* @param[out] pulOutNumEstablishedConnections Number of the established connections.
*
* @return #MetricsCollectorSuccess if established connections are successfully obtained;
* #MetricsCollectorBadParameter if invalid parameters are passed;
* #MetricsCollectorCollectionFailed if the collection methods failed.
*/
eMetricsCollectorStatus eGetEstablishedConnections( Connection_t * pxOutConnectionsArray,
uint32_t ulConnectionsArrayLength,
uint32_t * pulOutNumEstablishedConnections );
#endif /* ifndef METRICS_COLLECTOR_H_ */

View file

@ -0,0 +1,506 @@
/*
* 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 <string.h>
#include <stdint.h>
/* Demo config. */
#include "demo_config.h"
/* Interface include. */
#include "report_builder.h"
/* Various JSON characters. */
#define reportbuilderJSON_ARRAY_OPEN_MARKER '['
#define reportbuilderJSON_ARRAY_CLOSE_MARKER ']'
#define reportbuilderJSON_ARRAY_OBJECT_SEPARATOR ','
/* Helper macro to check if snprintf was successful. */
#define reportbuilderSNPRINTF_SUCCESS( retVal, bufLen ) ( ( retVal > 0 ) && ( ( uint32_t ) retVal < bufLen ) )
/* Formats used to generate the JSON report. */
#define reportbuilderJSON_PORT_OBJECT_FORMAT \
"{" \
"\"port\": %u" \
"},"
#define reportbuilderJSON_CONNECTION_OBJECT_FORMAT \
"{" \
"\"local_port\": %u," \
"\"remote_addr\": \"%u.%u.%u.%u:%u\"" \
"},"
#define reportbuilderJSON_REPORT_FORMAT_PART1 \
"{" \
"\"header\": {" \
"\"report_id\": %u," \
"\"version\": \"%u.%u\"" \
"}," \
"\"metrics\": {" \
"\"listening_tcp_ports\": {" \
"\"ports\": "
#define reportbuilderJSON_REPORT_FORMAT_PART2 \
"," \
"\"total\": %u" \
"}," \
"\"listening_udp_ports\": {" \
"\"ports\": "
#define reportbuilderJSON_REPORT_FORMAT_PART3 \
"," \
"\"total\": %u" \
"}," \
"\"network_stats\": {" \
"\"bytes_in\": %u," \
"\"bytes_out\": %u," \
"\"packets_in\": %u," \
"\"packets_out\": %u" \
"}," \
"\"tcp_connections\": {" \
"\"established_connections\": {" \
"\"connections\": "
#define reportbuilderJSON_REPORT_FORMAT_PART4 \
"," \
"\"total\": %u" \
"}" \
"}" \
"}" \
"}"
/*-----------------------------------------------------------*/
/**
* @brief Write ports array to the given buffer in the format expected by the
* AWS IoT Device Defender Service.
*
* This function writes an array of the following format:
* [
* {
* "port":44207
* },
* {
* "port":53
* }
* ]
*
* @param[in] pcBuffer The buffer to write the ports array.
* @param[in] ulBufferLength The length of the buffer.
* @param[in] pusOpenPortsArray The array containing the open ports.
* @param[in] ulOpenPortsArrayLength Length of the pusOpenPortsArray array.
* @param[out] pulOutCharsWritten Number of characters written to the buffer.
*
* @return #ReportBuilderSuccess if the array is successfully written;
* #ReportBuilderBufferTooSmall if the buffer cannot hold the full array.
*/
static eReportBuilderStatus prvWritePortsArray( char * pcBuffer,
uint32_t ulBufferLength,
const uint16_t * pusOpenPortsArray,
uint32_t ulOpenPortsArrayLength,
uint32_t * pulOutCharsWritten );
/**
* @brief Write established connections array to the given buffer in the format
* expected by the AWS IoT Device Defender Service.
*
* This function write array of the following format:
* [
* {
* "local_port":44207,
* "remote_addr":"127.0.0.1:45148"
* },
* {
* "local_port":22,
* "remote_addr":"24.16.237.194:63552"
* }
* ]
*
* @param[in] pcBuffer The buffer to write the connections array.
* @param[in] ulBufferLength The length of the buffer.
* @param[in] pxConnectionsArray The array containing the established connections.
* @param[in] ulConnectionsArrayLength Length of the pxConnectionsArray array.
* @param[out] pulOutCharsWritten Number of characters written to the buffer.
*
* @return #ReportBuilderSuccess if the array is successfully written;
* #ReportBuilderBufferTooSmall if the buffer cannot hold the full array.
*/
static eReportBuilderStatus prvWriteConnectionsArray( char * pcBuffer,
uint32_t ulBufferLength,
const Connection_t * pxConnectionsArray,
uint32_t ulConnectionsArrayLength,
uint32_t * pulOutCharsWritten );
/*-----------------------------------------------------------*/
static eReportBuilderStatus prvWritePortsArray( char * pcBuffer,
uint32_t ulBufferLength,
const uint16_t * pusOpenPortsArray,
uint32_t ulOpenPortsArrayLength,
uint32_t * pulOutCharsWritten )
{
char * pCurrentWritePos = pcBuffer;
uint32_t i, ulRemainingBufferLength = ulBufferLength;
uint32_t ulCharactersWritten;
eReportBuilderStatus eStatus = eReportBuilderSuccess;
configASSERT( pcBuffer != NULL );
configASSERT( pusOpenPortsArray != NULL );
configASSERT( pulOutCharsWritten != NULL );
/* Write the JSON array open marker. */
if( ulRemainingBufferLength > 1 )
{
*pCurrentWritePos = reportbuilderJSON_ARRAY_OPEN_MARKER;
ulRemainingBufferLength -= 1;
pCurrentWritePos += 1;
}
else
{
eStatus = eReportBuilderBufferTooSmall;
}
/* Write the array elements. */
for( i = 0; ( ( i < ulOpenPortsArrayLength ) && ( eStatus == eReportBuilderSuccess ) ); i++ )
{
ulCharactersWritten = snprintf( pCurrentWritePos,
ulRemainingBufferLength,
reportbuilderJSON_PORT_OBJECT_FORMAT,
pusOpenPortsArray[ i ] );
if( !reportbuilderSNPRINTF_SUCCESS( ulCharactersWritten, ulRemainingBufferLength ) )
{
eStatus = eReportBuilderBufferTooSmall;
break;
}
else
{
ulRemainingBufferLength -= ( uint32_t ) ulCharactersWritten;
pCurrentWritePos += ulCharactersWritten;
}
}
if( eStatus == eReportBuilderSuccess )
{
/* Discard the last comma. */
if( ulOpenPortsArrayLength > 0 )
{
pCurrentWritePos -= 1;
ulRemainingBufferLength += 1;
}
/* Write the JSON array close marker. */
if( ulRemainingBufferLength > 1 )
{
*pCurrentWritePos = reportbuilderJSON_ARRAY_CLOSE_MARKER;
ulRemainingBufferLength -= 1;
pCurrentWritePos += 1;
}
else
{
eStatus = eReportBuilderBufferTooSmall;
}
}
if( eStatus == eReportBuilderSuccess )
{
*pulOutCharsWritten = ulBufferLength - ulRemainingBufferLength;
}
return eStatus;
}
/*-----------------------------------------------------------*/
static eReportBuilderStatus prvWriteConnectionsArray( char * pcBuffer,
uint32_t ulBufferLength,
const Connection_t * pxConnectionsArray,
uint32_t ulConnectionsArrayLength,
uint32_t * pulOutCharsWritten )
{
char * pCurrentWritePos = pcBuffer;
uint32_t i, ulRemainingBufferLength = ulBufferLength;
uint32_t ulCharactersWritten;
eReportBuilderStatus eStatus = eReportBuilderSuccess;
const Connection_t * pxConn;
configASSERT( pcBuffer != NULL );
configASSERT( pxConnectionsArray != NULL );
configASSERT( pulOutCharsWritten != NULL );
/* Write the JSON array open marker. */
if( ulRemainingBufferLength > 1 )
{
*pCurrentWritePos = reportbuilderJSON_ARRAY_OPEN_MARKER;
ulRemainingBufferLength -= 1;
pCurrentWritePos += 1;
}
else
{
eStatus = eReportBuilderBufferTooSmall;
}
/* Write the array elements. */
for( i = 0; ( ( i < ulConnectionsArrayLength ) && ( eStatus == eReportBuilderSuccess ) ); i++ )
{
pxConn = &( pxConnectionsArray[ i ] );
ulCharactersWritten = snprintf( pCurrentWritePos,
ulRemainingBufferLength,
reportbuilderJSON_CONNECTION_OBJECT_FORMAT,
pxConn->usLocalPort,
( pxConn->ulRemoteIp >> 24 ) & 0xFF,
( pxConn->ulRemoteIp >> 16 ) & 0xFF,
( pxConn->ulRemoteIp >> 8 ) & 0xFF,
( pxConn->ulRemoteIp ) & 0xFF,
pxConn->usRemotePort );
if( !reportbuilderSNPRINTF_SUCCESS( ulCharactersWritten, ulRemainingBufferLength ) )
{
eStatus = eReportBuilderBufferTooSmall;
break;
}
else
{
ulRemainingBufferLength -= ulCharactersWritten;
pCurrentWritePos += ulCharactersWritten;
}
}
if( eStatus == eReportBuilderSuccess )
{
/* Discard the last comma. */
if( ulConnectionsArrayLength > 0 )
{
pCurrentWritePos -= 1;
ulRemainingBufferLength += 1;
}
/* Write the JSON array close marker. */
if( ulRemainingBufferLength > 1 )
{
*pCurrentWritePos = reportbuilderJSON_ARRAY_CLOSE_MARKER;
ulRemainingBufferLength -= 1;
pCurrentWritePos += 1;
}
else
{
eStatus = eReportBuilderBufferTooSmall;
}
}
if( eStatus == eReportBuilderSuccess )
{
*pulOutCharsWritten = ulBufferLength - ulRemainingBufferLength;
}
return eStatus;
}
/*-----------------------------------------------------------*/
eReportBuilderStatus eGenerateJsonReport( char * pcBuffer,
uint32_t ulBufferLength,
const ReportMetrics_t * pxMetrics,
uint32_t ulMajorReportVersion,
uint32_t ulMinorReportVersion,
uint32_t ulReportId,
uint32_t * pulOutReportLength )
{
char * pCurrentWritePos = pcBuffer;
uint32_t ulRemainingBufferLength = ulBufferLength, bufferWritten;
eReportBuilderStatus eStatus = eReportBuilderSuccess;
uint32_t ulCharactersWritten;
configASSERT( pcBuffer != NULL );
configASSERT( pxMetrics != NULL );
configASSERT( pulOutReportLength != NULL );
if( ( pcBuffer == NULL ) ||
( ulBufferLength == 0 ) ||
( pxMetrics == NULL ) ||
( pulOutReportLength == NULL ) )
{
LogError( ( "Invalid parameters. pcBuffer: %p, ulBufferLength: %u"
" pMetrics: %p, pOutReprotLength: %p.",
pcBuffer,
ulBufferLength,
pxMetrics,
pulOutReportLength ) );
eStatus = eReportBuilderBadParameter;
}
/* Write part1. */
if( eStatus == eReportBuilderSuccess )
{
ulCharactersWritten = snprintf( pCurrentWritePos,
ulRemainingBufferLength,
reportbuilderJSON_REPORT_FORMAT_PART1,
ulReportId,
ulMajorReportVersion,
ulMinorReportVersion );
if( !reportbuilderSNPRINTF_SUCCESS( ulCharactersWritten, ulRemainingBufferLength ) )
{
LogError( ( "Failed to write part 1." ) );
eStatus = eReportBuilderBufferTooSmall;
}
else
{
ulRemainingBufferLength -= ulCharactersWritten;
pCurrentWritePos += ulCharactersWritten;
}
}
/* Write TCP ports array. */
if( eStatus == eReportBuilderSuccess )
{
eStatus = prvWritePortsArray( pCurrentWritePos,
ulRemainingBufferLength,
pxMetrics->pusOpenTcpPortsArray,
pxMetrics->ulOpenTcpPortsArrayLength,
&( bufferWritten ) );
if( eStatus == eReportBuilderSuccess )
{
pCurrentWritePos += bufferWritten;
ulRemainingBufferLength -= bufferWritten;
}
else
{
LogError( ( "Failed to write TCP ports array." ) );
}
}
/* Write part2. */
if( eStatus == eReportBuilderSuccess )
{
ulCharactersWritten = snprintf( pCurrentWritePos,
ulRemainingBufferLength,
reportbuilderJSON_REPORT_FORMAT_PART2,
pxMetrics->ulOpenTcpPortsArrayLength );
if( !reportbuilderSNPRINTF_SUCCESS( ulCharactersWritten, ulRemainingBufferLength ) )
{
LogError( ( "Failed to write part 2." ) );
eStatus = eReportBuilderBufferTooSmall;
}
else
{
ulRemainingBufferLength -= ulCharactersWritten;
pCurrentWritePos += ulCharactersWritten;
}
}
/* Write UDP ports array. */
if( eStatus == eReportBuilderSuccess )
{
eStatus = prvWritePortsArray( pCurrentWritePos,
ulRemainingBufferLength,
pxMetrics->pusOpenUdpPortsArray,
pxMetrics->ulOpenUdpPortsArrayLength,
&( bufferWritten ) );
if( eStatus == eReportBuilderSuccess )
{
pCurrentWritePos += bufferWritten;
ulRemainingBufferLength -= bufferWritten;
}
else
{
LogError( ( "Failed to write UDP ports array." ) );
}
}
/* Write part3. */
if( eStatus == eReportBuilderSuccess )
{
ulCharactersWritten = snprintf( pCurrentWritePos,
ulRemainingBufferLength,
reportbuilderJSON_REPORT_FORMAT_PART3,
pxMetrics->ulOpenUdpPortsArrayLength,
pxMetrics->pxNetworkStats->ulBytesReceived,
pxMetrics->pxNetworkStats->ulBytesSent,
pxMetrics->pxNetworkStats->ulPacketsReceived,
pxMetrics->pxNetworkStats->ulPacketsSent );
if( !reportbuilderSNPRINTF_SUCCESS( ulCharactersWritten, ulRemainingBufferLength ) )
{
LogError( ( "Failed to write part 3." ) );
eStatus = eReportBuilderBufferTooSmall;
}
else
{
ulRemainingBufferLength -= ulCharactersWritten;
pCurrentWritePos += ulCharactersWritten;
}
}
/* Write connections array. */
if( eStatus == eReportBuilderSuccess )
{
eStatus = prvWriteConnectionsArray( pCurrentWritePos,
ulRemainingBufferLength,
pxMetrics->pxEstablishedConnectionsArray,
pxMetrics->ulEstablishedConnectionsArrayLength,
&( bufferWritten ) );
if( eStatus == eReportBuilderSuccess )
{
pCurrentWritePos += bufferWritten;
ulRemainingBufferLength -= bufferWritten;
}
else
{
LogError( ( "Failed to write established connections array." ) );
}
}
/* Write part4. */
if( eStatus == eReportBuilderSuccess )
{
ulCharactersWritten = snprintf( pCurrentWritePos,
ulRemainingBufferLength,
reportbuilderJSON_REPORT_FORMAT_PART4,
pxMetrics->ulEstablishedConnectionsArrayLength );
if( !reportbuilderSNPRINTF_SUCCESS( ulCharactersWritten, ulRemainingBufferLength ) )
{
LogError( ( "Failed to write part 4." ) );
eStatus = eReportBuilderBufferTooSmall;
}
else
{
ulRemainingBufferLength -= ulCharactersWritten;
pCurrentWritePos += ulCharactersWritten;
}
}
if( eStatus == eReportBuilderSuccess )
{
*pulOutReportLength = ulBufferLength - ulRemainingBufferLength;
}
return eStatus;
}
/*-----------------------------------------------------------*/

View file

@ -0,0 +1,81 @@
/*
* 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 REPORT_BUILDER_H_
#define REPORT_BUILDER_H_
/* Metrics collector. */
#include "metrics_collector.h"
/**
* @brief Return codes from report builder APIs.
*/
typedef enum
{
eReportBuilderSuccess = 0,
eReportBuilderBadParameter,
eReportBuilderBufferTooSmall
} eReportBuilderStatus;
/**
* @brief Represents metrics to be included in the report.
*/
typedef struct ReportMetrics
{
NetworkStats_t * pxNetworkStats;
uint16_t * pusOpenTcpPortsArray;
uint32_t ulOpenTcpPortsArrayLength;
uint16_t * pusOpenUdpPortsArray;
uint32_t ulOpenUdpPortsArrayLength;
Connection_t * pxEstablishedConnectionsArray;
uint32_t ulEstablishedConnectionsArrayLength;
} ReportMetrics_t;
/**
* @brief Generate a report in the format expected by the AWS IoT Device Defender
* Service.
*
* @param[in] pcBuffer The buffer to write the report into.
* @param[in] ulBufferLength The length of the buffer.
* @param[in] pxMetrics Metrics to write in the generated report.
* @param[in] ulMajorReportVersion Major version of the report.
* @param[in] ulMinorReportVersion Minor version of the report.
* @param[in] ulReportId Value to be used as the ulReportId in the generated report.
* @param[out] pulOutReprotLength The length of the generated report.
*
* @return #ReportBuilderSuccess if the report is successfully generated;
* #ReportBuilderBadParameter if invalid parameters are passed;
* #ReportBuilderBufferTooSmall if the buffer cannot hold the full report.
*/
eReportBuilderStatus eGenerateJsonReport( char * pcBuffer,
uint32_t ulBufferLength,
const ReportMetrics_t * pxMetrics,
uint32_t ulMajorReportVersion,
uint32_t ulMinorReportVersion,
uint32_t ulReportId,
uint32_t * pulOutReportLength );
#endif /* ifndef REPORT_BUILDER_H_ */

View file

@ -18,12 +18,16 @@
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * 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 * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/ */
/** /**
* @file shadow_demo_helpers.c * @file mqtt_demo_helpers.c
* *
* @brief This file provides helper functions used by the Shadow demo application to * @brief This file provides helper functions used by the AWS demo applications to
* do MQTT operations over a mutually authenticated TLS connection. * do MQTT operations over a mutually authenticated TLS connection.
* *
* A mutually authenticated TLS connection is used to connect to the AWS IoT * A mutually authenticated TLS connection is used to connect to the AWS IoT
@ -190,7 +194,7 @@ typedef struct PublishPackets
static uint32_t ulGlobalEntryTimeMs; static uint32_t ulGlobalEntryTimeMs;
/** /**
* @brief The flag to indicate the mqtt session changed. * @brief The flag to indicate the MQTT session changed.
*/ */
static BaseType_t xMqttSessionEstablished = pdFALSE; static BaseType_t xMqttSessionEstablished = pdFALSE;
@ -366,7 +370,7 @@ static BaseType_t prvGetNextFreeIndexForOutgoingPublishes( uint8_t * pucIndex )
for( ucIndex = 0; ucIndex < MAX_OUTGOING_PUBLISHES; ucIndex++ ) for( ucIndex = 0; ucIndex < MAX_OUTGOING_PUBLISHES; ucIndex++ )
{ {
/* A free ucIndex is marked by invalid packet id. /* A free ucIndex is marked by invalid packet id.
* Check if the the ucIndex has a free slot. */ * Check if the ucIndex has a free slot. */
if( outgoingPublishPackets[ ucIndex ].packetId == MQTT_PACKET_ID_INVALID ) if( outgoingPublishPackets[ ucIndex ].packetId == MQTT_PACKET_ID_INVALID )
{ {
xReturnStatus = pdPASS; xReturnStatus = pdPASS;
@ -881,6 +885,30 @@ BaseType_t xPublishToTopic( MQTTContext_t * pxMqttContext,
return xReturnStatus; return xReturnStatus;
} }
/*-----------------------------------------------------------*/
BaseType_t xProcessLoop( MQTTContext_t * pxMqttContext )
{
BaseType_t xReturnStatus = pdFAIL;
MQTTStatus_t xMQTTStatus = MQTTSuccess;
xMQTTStatus = MQTT_ProcessLoop( pxMqttContext, mqttexamplePROCESS_LOOP_TIMEOUT_MS );
if( xMQTTStatus != MQTTSuccess )
{
LogWarn( ( "MQTT_ProcessLoop returned with status = %u.",
xMQTTStatus ) );
}
else
{
LogDebug( ( "MQTT_ProcessLoop successful." ) );
xReturnStatus = pdPASS;
}
return xReturnStatus;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static uint32_t prvGetTimeMs( void ) static uint32_t prvGetTimeMs( void )

View file

@ -18,6 +18,10 @@
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * 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 * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/ */
#ifndef MQTT_DEMO_HELPERS_H #ifndef MQTT_DEMO_HELPERS_H
@ -38,7 +42,7 @@
* MQTT connection. * MQTT connection.
* @param[in] pxNetworkBuffer The buffer space for initializing the @p pxMqttContext MQTT * @param[in] pxNetworkBuffer The buffer space for initializing the @p pxMqttContext MQTT
* context used in the MQTT connection. * context used in the MQTT connection.
* @param[in] appCallback The callback function used to receive incoming * @param[in] eventCallback The callback function used to receive incoming
* publishes and incoming acks from MQTT library. * publishes and incoming acks from MQTT library.
* *
* @return The status of the final connection attempt. * @return The status of the final connection attempt.
@ -73,7 +77,7 @@ BaseType_t xDisconnectMqttSession( MQTTContext_t * pxMqttContext,
/** /**
* @brief Subscribe to a MQTT topic filter. * @brief Subscribe to a MQTT topic filter.
* *
* @param[in] pxMqttContext The MQTT context for the MQTT connection to close. * @param[in] pxMqttContext The MQTT context for the MQTT connection.
* @param[in] pcTopicFilter Pointer to the shadow topic buffer. * @param[in] pcTopicFilter Pointer to the shadow topic buffer.
* @param[in] usTopicFilterLength Indicates the length of the shadow * @param[in] usTopicFilterLength Indicates the length of the shadow
* topic buffer. * topic buffer.
@ -118,4 +122,14 @@ BaseType_t xPublishToTopic( MQTTContext_t * pxMqttContext,
const char * pcPayload, const char * pcPayload,
size_t payloadLength ); size_t payloadLength );
/**
* @brief Invoke the core MQTT library's process loop function.
*
* @param[in] pxMqttContext The MQTT context for the MQTT connection.
*
* @return pdPASS if process loop was successful;
* pdFAIL otherwise.
*/
BaseType_t xProcessLoop( MQTTContext_t * pxMqttContext );
#endif /* ifndef MQTT_DEMO_HELPERS_H */ #endif /* ifndef MQTT_DEMO_HELPERS_H */