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author | Muneeb Ahmed <54290492+muneebahmed10@users.noreply.github.com> | 2020-07-10 12:19:57 -0700 |
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committer | GitHub <noreply@github.com> | 2020-07-10 12:19:57 -0700 |
commit | b98b75e312da0968815fc43343947d4f0efa1755 (patch) | |
tree | 257a6a2c1564a78159c64349980caf506bf9d4b5 | |
parent | 5399d97814ab24faa733ba912c1480521ce605d6 (diff) | |
download | freertos-git-b98b75e312da0968815fc43343947d4f0efa1755.tar.gz |
Add transport interface and MQTT plaintext demo (#130)
* Add transport interface for FreeRTOS
* Add MQTT plaintext demo
11 files changed, 2048 insertions, 0 deletions
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/DemoTasks/PlaintextMQTTExample.c b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/DemoTasks/PlaintextMQTTExample.c new file mode 100644 index 000000000..3bd484302 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/DemoTasks/PlaintextMQTTExample.c @@ -0,0 +1,638 @@ +/* + * FreeRTOS Kernel V10.3.0 + * 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. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ + +/* + * Demo for showing use of the managed MQTT API. + * + * The Example shown below uses this API to create MQTT messages and + * send them over the connection established using FreeRTOS sockets. + * The example is single threaded and uses statically allocated memory; + * it uses QOS0 and therefore does not implement any retransmission + * mechanism for Publish messages. + * + * !!! NOTE !!! + * This MQTT demo does not authenticate the server nor the client. + * Hence, this demo should not be used as production ready code. + */ + +/* Standard includes. */ +#include <string.h> +#include <stdio.h> + +/* Kernel includes. */ +#include "FreeRTOS.h" +#include "task.h" + +/* FreeRTOS+TCP includes. */ +#include "FreeRTOS_IP.h" +#include "FreeRTOS_Sockets.h" + +/* Demo Specific configs. */ +#include "demo_config.h" + +/* MQTT library includes. */ +#include "mqtt.h" + +/* Transport interface include. */ +#include "transport_interface_freertos.h" + + +/* Default values for configs. */ +#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 +#ifndef democonfigMQTT_BROKER_ENDPOINT + +/** + * @brief Details of the MQTT broker to connect to. + */ + #define democonfigMQTT_BROKER_ENDPOINT "test.mosquitto.org" +#endif +#ifndef democonfigMQTT_BROKER_PORT + +/** + * @brief The port to use for the demo. + */ + #define democonfigMQTT_BROKER_PORT ( 1883 ) +#endif + +/** + * @brief Timeout for receiving CONNACK packet in milliseconds. + */ +#define mqttexampleCONNACK_RECV_TIMEOUT_MS ( 1000U ) + +/** + * @brief The topic to subscribe and publish to in the example. + * + * The topic name starts with the client identifier to ensure that each demo + * interacts with a unique topic name. + */ +#define mqttexampleTOPIC democonfigCLIENT_IDENTIFIER "/example/topic" + +/** + * @brief The MQTT message published in this example. + */ +#define mqttexampleMESSAGE "Hello World!" + +/** + * @brief Dimensions a file scope buffer currently used to send and receive MQTT data + * from a socket. + */ +#define mqttexampleSHARED_BUFFER_SIZE ( 500U ) + +/** + * @brief Time to wait between each cycle of the demo implemented by prvMQTTDemoTask(). + */ +#define mqttexampleDELAY_BETWEEN_DEMO_ITERATIONS ( pdMS_TO_TICKS( 5000U ) ) + +/** + * @brief Timeout for MQTT_ProcessLoop in milliseconds. + */ +#define mqttexamplePROCESS_LOOP_TIMEOUT_MS ( 500U ) + +/** + * @brief Keep alive time reported to the broker while establishing an MQTT connection. + * + * It is the responsibility of the Client to ensure that the interval between + * Control Packets being sent does not exceed the this Keep Alive value. In the + * absence of sending any other Control Packets, the Client MUST send a + * PINGREQ Packet. + */ +#define mqttexampleKEEP_ALIVE_TIMEOUT_SECONDS ( 60U ) + +/** + * @brief Delay between MQTT publishes. Note that the process loop also has a + * timeout, so the total time between publishes is the sum of the two delays. + */ +#define mqttexampleDELAY_BETWEEN_PUBLISHES ( pdMS_TO_TICKS( 500U ) ) + +/** + * @brief Transport timeout in milliseconds for transport send and receive. + */ +#define TRANSPORT_SEND_RECV_TIMEOUT_MS ( 200U ) + +#define _MILLISECONDS_PER_SECOND ( 1000U ) /**< @brief Milliseconds per second. */ +#define _MILLISECONDS_PER_TICK ( _MILLISECONDS_PER_SECOND / configTICK_RATE_HZ ) /**< Milliseconds per FreeRTOS tick. */ + +/*-----------------------------------------------------------*/ + +/** + * @brief The task used to demonstrate the MQTT API. + * + * @param[in] pvParameters Parameters as passed at the time of task creation. Not + * used in this example. + */ +static void prvMQTTDemoTask( void * pvParameters ); + +/** + * @brief Sends an MQTT Connect packet over the already connected TCP socket. + * + * @param pxMQTTContext MQTT context pointer. + * @param xNetworkContext network context. + * + */ +static void prvCreateMQTTConnectionWithBroker( MQTTContext_t * pxMQTTContext, + NetworkContext_t * pxNetworkContext ); + +/** + * @brief Subscribes to the topic as specified in mqttexampleTOPIC at the top of + * this file. + * + * @param pxMQTTContext MQTT context pointer. + */ +static void prvMQTTSubscribeToTopic( MQTTContext_t * pxMQTTContext ); + +/** + * @brief Publishes a message mqttexampleMESSAGE on mqttexampleTOPIC topic. + * + * @param pxMQTTContext MQTT context pointer. + */ +static void prvMQTTPublishToTopic( MQTTContext_t * pxMQTTContext ); + +/** + * @brief Unsubscribes from the previously subscribed topic as specified + * in mqttexampleTOPIC. + * + * @param pxMQTTContext MQTT context pointer. + */ +static void prvMQTTUnsubscribeFromTopic( MQTTContext_t * pxMQTTContext ); + +/** + * @brief The timer query function provided to the MQTT context. + * + * @return Time in milliseconds. + */ +static uint32_t prvGetTimeMs( void ); + +/** + * @brief Process a response or ack to an MQTT request (PING, SUBSCRIBE + * or UNSUBSCRIBE). This function processes PINGRESP, SUBACK, UNSUBACK + * + * @param pxIncomingPacket is a pointer to structure containing deserialized + * MQTT response. + * @param usPacketId is the packet identifier from the ack received. + */ +static void prvMQTTProcessResponse( MQTTPacketInfo_t * pxIncomingPacket, + uint16_t usPacketId ); + +/** + * @brief Process incoming Publish message. + * + * @param pxPublishInfo is a pointer to structure containing deserialized + * Publish message. + */ +static void prvMQTTProcessIncomingPublish( MQTTPublishInfo_t * pxPublishInfo ); + +/** + * @brief The application callback function for getting the incoming publish + * and incoming acks reported from the MQTT library. + * + * @param pxMQTTContext MQTT context pointer. + * @param pxPacketInfo Packet Info pointer for the incoming packet. + * @param usPacketIdentifier Packet identifier of the incoming packet. + * @param pxPublishInfo Deserialized publish info pointer for the incoming + * packet. + */ +static void prvEventCallback( MQTTContext_t * pxMQTTContext, + MQTTPacketInfo_t * pxPacketInfo, + uint16_t usPacketIdentifier, + MQTTPublishInfo_t * pxPublishInfo ); + +/*-----------------------------------------------------------*/ + +/* @brief Static buffer used to hold MQTT messages being sent and received. */ +static uint8_t ucSharedBuffer[ mqttexampleSHARED_BUFFER_SIZE ]; + +/** + * @brief Global entry time into the application to use as a reference timestamp + * in the #prvGetTimeMs function. #prvGetTimeMs will always return the difference + * between the current time and the global entry time. This will reduce the chances + * of overflow for the 32 bit unsigned integer used for holding the timestamp. + */ +static uint32_t ulGlobalEntryTimeMs; + +/** + * @brief Packet Identifier generated when Subscribe request was sent to the broker; + * it is used to match received Subscribe ACK to the transmitted ACK. + */ +static uint16_t usSubscribePacketIdentifier; + +/** + * @brief Packet Identifier generated when Unsubscribe request was sent to the broker; + * it is used to match received Unsubscribe response to the transmitted unsubscribe + * request. + */ +static uint16_t usUnsubscribePacketIdentifier; + + +/** @brief Static buffer used to hold MQTT messages being sent and received. */ +static MQTTFixedBuffer_t xBuffer = +{ + .pBuffer = ucSharedBuffer, + .size = mqttexampleSHARED_BUFFER_SIZE +}; + +/*-----------------------------------------------------------*/ + +/* + * @brief Create the task that demonstrates the Plain text MQTT API Demo. + */ +void vStartSimpleMQTTDemo( void ) +{ + /* This example uses a single application task, which in turn is used to + * connect, subscribe, publish, unsubscribe and disconnect from the MQTT + * broker. */ + xTaskCreate( prvMQTTDemoTask, /* Function that implements the task. */ + "MQTTDemo", /* 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. */ +} +/*-----------------------------------------------------------*/ + +static void prvMQTTDemoTask( void * pvParameters ) +{ + uint32_t ulPublishCount = 0U; + const uint32_t ulMaxPublishCount = 5UL; + NetworkContext_t xNetworkContext = { 0 }; + MQTTContext_t xMQTTContext; + MQTTStatus_t xMQTTStatus; + + /* Remove compiler warnings about unused parameters. */ + ( void ) pvParameters; + + ulGlobalEntryTimeMs = prvGetTimeMs(); + + for( ; ; ) + { + /****************************** Connect. ******************************/ + + /* Establish a TCP connection with the MQTT broker. This example connects to + * the MQTT broker as specified in democonfigMQTT_BROKER_ENDPOINT and + * democonfigMQTT_BROKER_PORT at the top of this file. */ + LogInfo( ( "Create a TCP connection to %s.\r\n", democonfigMQTT_BROKER_ENDPOINT ) ); + Transport_FreeRTOS_Connect( &xNetworkContext, + democonfigMQTT_BROKER_ENDPOINT, + democonfigMQTT_BROKER_PORT, + TRANSPORT_SEND_RECV_TIMEOUT_MS ); + + /* Sends an MQTT Connect packet over the already connected TCP socket, + * and waits for connection acknowledgment (CONNACK) packet. */ + LogInfo( ( "Creating an MQTT connection to %s.\r\n", democonfigMQTT_BROKER_ENDPOINT ) ); + prvCreateMQTTConnectionWithBroker( &xMQTTContext, &xNetworkContext ); + + /**************************** Subscribe. ******************************/ + + /* The client is now connected to the broker. Subscribe to the topic + * as specified in mqttexampleTOPIC at the top of this file by sending a + * subscribe packet then waiting for a subscribe acknowledgment (SUBACK). + * This client will then publish to the same topic it subscribed to, so it + * will expect all the messages it sends to the broker to be sent back to it + * from the broker. This demo uses QOS0 in Subscribe, therefore, the Publish + * messages received from the broker will have QOS0. */ + LogInfo( ( "Attempt to subscribed to the MQTT topic %s.\r\n", mqttexampleTOPIC ) ); + prvMQTTSubscribeToTopic( &xMQTTContext ); + + /* Process incoming packet from the broker. After sending the subscribe, the + * client may receive a publish before it receives a subscribe ack. Therefore, + * call generic incoming packet processing function. Since this demo is + * subscribing to the topic to which no one is publishing, probability of + * receiving Publish message before subscribe ack is zero; but application + * must be ready to receive any packet. This demo uses the generic packet + * processing function everywhere to highlight this fact. */ + xMQTTStatus = MQTT_ProcessLoop( &xMQTTContext, mqttexamplePROCESS_LOOP_TIMEOUT_MS ); + configASSERT( xMQTTStatus == MQTTSuccess ); + + /**************************** Publish and Keep Alive Loop. ******************************/ + /* Publish messages with QOS0, send and process Keep alive messages. */ + for( ulPublishCount = 0; ulPublishCount < ulMaxPublishCount; ulPublishCount++ ) + { + LogInfo( ( "Publish to the MQTT topic %s.\r\n", mqttexampleTOPIC ) ); + prvMQTTPublishToTopic( &xMQTTContext ); + + /* Process incoming publish echo, since application subscribed to the same + * topic the broker will send publish message back to the application. */ + LogInfo( ( "Attempt to receive publish message from broker.\r\n" ) ); + xMQTTStatus = MQTT_ProcessLoop( &xMQTTContext, mqttexamplePROCESS_LOOP_TIMEOUT_MS ); + configASSERT( xMQTTStatus == MQTTSuccess ); + + /* Leave Connection Idle for some time. */ + LogInfo( ( "Keeping Connection Idle...\r\n\r\n" ) ); + vTaskDelay( mqttexampleDELAY_BETWEEN_PUBLISHES ); + } + + /************************ Unsubscribe from the topic. **************************/ + LogInfo( ( "Unsubscribe from the MQTT topic %s.\r\n", mqttexampleTOPIC ) ); + prvMQTTUnsubscribeFromTopic( &xMQTTContext ); + + /* Process Incoming packet from the broker. */ + xMQTTStatus = MQTT_ProcessLoop( &xMQTTContext, mqttexamplePROCESS_LOOP_TIMEOUT_MS ); + configASSERT( xMQTTStatus == MQTTSuccess ); + + /**************************** Disconnect. ******************************/ + + /* Send an MQTT Disconnect packet over the already connected TCP socket. + * There is no corresponding response for the disconnect packet. After sending + * disconnect, client must close the network connection. */ + LogInfo( ( "Disconnecting the MQTT connection with %s.\r\n", democonfigMQTT_BROKER_ENDPOINT ) ); + MQTT_Disconnect( &xMQTTContext ); + + /* Close the network connection. */ + Transport_FreeRTOS_Disconnect( &xNetworkContext ); + + /* Wait for some time between two iterations to ensure that we do not + * bombard the public test mosquitto broker. */ + LogInfo( ( "prvMQTTDemoTask() completed an iteration successfully. Total free heap is %u.\r\n", xPortGetFreeHeapSize() ) ); + LogInfo( ( "Demo completed successfully.\r\n" ) ); + LogInfo( ( "Short delay before starting the next iteration.... \r\n\r\n" ) ); + vTaskDelay( mqttexampleDELAY_BETWEEN_DEMO_ITERATIONS ); + } +} +/*-----------------------------------------------------------*/ + +static void prvCreateMQTTConnectionWithBroker( MQTTContext_t * pxMQTTContext, + NetworkContext_t * pxNetworkContext ) +{ + MQTTStatus_t xResult; + MQTTConnectInfo_t xConnectInfo; + uint16_t usPacketId; + bool xSessionPresent; + TransportInterface_t xTransport; + MQTTApplicationCallbacks_t xCallbacks; + + /*** + * For readability, error handling in this function is restricted to the use of + * asserts(). + ***/ + + /* Fill in Transport Interface send and receive function pointers. */ + xTransport.pNetworkContext = pxNetworkContext; + xTransport.send = Transport_FreeRTOS_send; + xTransport.recv = Transport_FreeRTOS_recv; + + /* Application callbacks for receiving incoming published and incoming acks + * from MQTT library. */ + xCallbacks.appCallback = prvEventCallback; + xCallbacks.getTime = prvGetTimeMs; + + /* Initialize MQTT library. */ + xResult = MQTT_Init( pxMQTTContext, &xTransport, &xCallbacks, &xBuffer ); + configASSERT( xResult == MQTTSuccess ); + + /* Many fields not used in this demo so start with everything at 0. */ + memset( ( void * ) &xConnectInfo, 0x00, sizeof( xConnectInfo ) ); + + /* Start with a clean session i.e. direct the MQTT broker to discard any + * previous session data. Also, establishing a connection with clean session + * will ensure that the broker does not store any data when this client + * gets disconnected. */ + xConnectInfo.cleanSession = true; + + /* The client identifier is used to uniquely identify this MQTT client to + * the MQTT broker. In a production device the identifier can be something + * unique, such as a device serial number. */ + xConnectInfo.pClientIdentifier = democonfigCLIENT_IDENTIFIER; + xConnectInfo.clientIdentifierLength = ( uint16_t ) strlen( democonfigCLIENT_IDENTIFIER ); + + /* Set MQTT keep-alive period. It is the responsibility of the application to ensure + * that the interval between Control Packets being sent does not exceed the Keep Alive value. + * In the absence of sending any other Control Packets, the Client MUST send a PINGREQ Packet. */ + xConnectInfo.keepAliveSeconds = mqttexampleKEEP_ALIVE_TIMEOUT_SECONDS; + + /* Send MQTT CONNECT packet to broker. LWT is not used in this demo, so it + * is passed as NULL. */ + xResult = MQTT_Connect( pxMQTTContext, + &xConnectInfo, + NULL, + mqttexampleCONNACK_RECV_TIMEOUT_MS, + &xSessionPresent ); + + if( xResult != MQTTSuccess ) + { + LogError( ( "Connection with MQTT broker failed.\r\n" ) ); + } +} +/*-----------------------------------------------------------*/ + +static void prvMQTTSubscribeToTopic( MQTTContext_t * pxMQTTContext ) +{ + MQTTStatus_t xResult; + MQTTSubscribeInfo_t xMQTTSubscription[ 1 ]; + + /*** + * For readability, error handling in this function is restricted to the use of + * asserts(). + ***/ + + /* Some fields not used by this demo so start with everything at 0. */ + ( void ) memset( ( void * ) &xMQTTSubscription, 0x00, sizeof( xMQTTSubscription ) ); + + /* Subscribe to the mqttexampleTOPIC topic filter. This example subscribes to + * only one topic and uses QOS0. */ + xMQTTSubscription[ 0 ].qos = MQTTQoS0; + xMQTTSubscription[ 0 ].pTopicFilter = mqttexampleTOPIC; + xMQTTSubscription[ 0 ].topicFilterLength = ( uint16_t ) strlen( mqttexampleTOPIC ); + + /* Get a unique packet id. */ + usSubscribePacketIdentifier = MQTT_GetPacketId( pxMQTTContext ); + /* Make sure the packet id obtained is valid. */ + configASSERT( usSubscribePacketIdentifier != 0 ); + + /* Send SUBSCRIBE packet. */ + xResult = MQTT_Subscribe( pxMQTTContext, + xMQTTSubscription, + sizeof( xMQTTSubscription ) / sizeof( MQTTSubscribeInfo_t ), + usSubscribePacketIdentifier ); + + configASSERT( xResult == MQTTSuccess ); +} +/*-----------------------------------------------------------*/ + +static void prvMQTTPublishToTopic( MQTTContext_t * pxMQTTContext ) +{ + MQTTStatus_t xResult; + MQTTPublishInfo_t xMQTTPublishInfo; + + + /*** + * For readability, error handling in this function is restricted to the use of + * asserts(). + ***/ + + /* Some fields not used by this demo so start with everything at 0. */ + ( void ) memset( ( void * ) &xMQTTPublishInfo, 0x00, sizeof( xMQTTPublishInfo ) ); + + /* This demo uses QOS0 */ + xMQTTPublishInfo.qos = MQTTQoS0; + xMQTTPublishInfo.retain = false; + xMQTTPublishInfo.pTopicName = mqttexampleTOPIC; + xMQTTPublishInfo.topicNameLength = ( uint16_t ) strlen( mqttexampleTOPIC ); + xMQTTPublishInfo.pPayload = mqttexampleMESSAGE; + xMQTTPublishInfo.payloadLength = strlen( mqttexampleMESSAGE ); + + /* Send PUBLISH packet. Packet ID is not used for a QoS0 publish. */ + xResult = MQTT_Publish( pxMQTTContext, &xMQTTPublishInfo, 0U ); + + configASSERT( xResult == MQTTSuccess ); +} +/*-----------------------------------------------------------*/ + +static void prvMQTTUnsubscribeFromTopic( MQTTContext_t * pxMQTTContext ) +{ + MQTTStatus_t xResult; + MQTTSubscribeInfo_t xMQTTSubscription[ 1 ]; + BaseType_t xStatus; + + /* Some fields not used by this demo so start with everything at 0. */ + memset( ( void * ) &xMQTTSubscription, 0x00, sizeof( xMQTTSubscription ) ); + + /* Unsubscribe to the mqttexampleTOPIC topic filter. */ + xMQTTSubscription[ 0 ].qos = MQTTQoS0; + xMQTTSubscription[ 0 ].pTopicFilter = mqttexampleTOPIC; + xMQTTSubscription[ 0 ].topicFilterLength = ( uint16_t ) strlen( mqttexampleTOPIC ); + + /* Get next unique packet identifier */ + usUnsubscribePacketIdentifier = MQTT_GetPacketId( pxMQTTContext ); + /* Make sure the packet id obtained is valid. */ + configASSERT( usUnsubscribePacketIdentifier != 0 ); + + /* Send UNSUBSCRIBE packet. */ + xResult = MQTT_Unsubscribe( pxMQTTContext, + xMQTTSubscription, + sizeof( xMQTTSubscription ) / sizeof( MQTTSubscribeInfo_t ), + usUnsubscribePacketIdentifier ); + + configASSERT( xResult == MQTTSuccess ); +} +/*-----------------------------------------------------------*/ + +static void prvMQTTProcessResponse( MQTTPacketInfo_t * pxIncomingPacket, + uint16_t usPacketId ) +{ + switch( pxIncomingPacket->type ) + { + case MQTT_PACKET_TYPE_SUBACK: + LogInfo( ( "Subscribed to the topic %s.\r\n", mqttexampleTOPIC ) ); + /* Make sure ACK packet identifier matches with Request packet identifier. */ + configASSERT( usSubscribePacketIdentifier == usPacketId ); + break; + + case MQTT_PACKET_TYPE_UNSUBACK: + LogInfo( ( "Unsubscribed from the topic %s.\r\n", mqttexampleTOPIC ) ); + /* Make sure ACK packet identifier matches with Request packet identifier. */ + configASSERT( usUnsubscribePacketIdentifier == usPacketId ); + break; + + case MQTT_PACKET_TYPE_PINGRESP: + LogInfo( ( "Ping Response successfully received.\r\n" ) ); + break; + + /* Any other packet type is invalid. */ + default: + LogWarn( ( "prvMQTTProcessResponse() called with unknown packet type:(%02X).\r\n", + pxIncomingPacket->type ) ); + } +} + +/*-----------------------------------------------------------*/ + +static void prvMQTTProcessIncomingPublish( MQTTPublishInfo_t * pxPublishInfo ) +{ + configASSERT( pxPublishInfo != NULL ); + + /* Process incoming Publish. */ + LogInfo( ( "Incoming QoS : %d\n", pxPublishInfo->qos ) ); + + /* Verify the received publish is for the we have subscribed to. */ + if( ( pxPublishInfo->topicNameLength == strlen( mqttexampleTOPIC ) ) && + ( 0 == strncmp( mqttexampleTOPIC, pxPublishInfo->pTopicName, pxPublishInfo->topicNameLength ) ) ) + { + LogInfo( ( "\r\nIncoming Publish Topic Name: %.*s matches subscribed topic.\r\n" + "Incoming Publish Message : %.*s\r\n", + pxPublishInfo->topicNameLength, + pxPublishInfo->pTopicName, + pxPublishInfo->payloadLength, + pxPublishInfo->pPayload ) ); + } + else + { + LogInfo( ( "Incoming Publish Topic Name: %.*s does not match subscribed topic.\r\n", + pxPublishInfo->topicNameLength, + pxPublishInfo->pTopicName ) ); + } +} + +/*-----------------------------------------------------------*/ + +static void prvEventCallback( MQTTContext_t * pxMQTTContext, + MQTTPacketInfo_t * pxPacketInfo, + uint16_t usPacketIdentifier, + MQTTPublishInfo_t * pxPublishInfo ) +{ + if( ( pxPacketInfo->type & 0xF0U ) == MQTT_PACKET_TYPE_PUBLISH ) + { + prvMQTTProcessIncomingPublish( pxPublishInfo ); + } + else + { + prvMQTTProcessResponse( pxPacketInfo, usPacketIdentifier ); + } +} + +/*-----------------------------------------------------------*/ + +static uint32_t prvGetTimeMs( void ) +{ + TickType_t xTickCount = 0; + uint32_t ulTimeMs = 0UL; + + /* Get the current tick count. */ + xTickCount = xTaskGetTickCount(); + + /* Convert the ticks to milliseconds. */ + ulTimeMs = ( uint32_t ) xTickCount * _MILLISECONDS_PER_TICK; + + /* Reduce ulGlobalEntryTimeMs from obtained time so as to always return the + * elapsed time in the application. */ + ulTimeMs = ( uint32_t ) ( ulTimeMs - ulGlobalEntryTimeMs ); + + return ulTimeMs; +} + +/*-----------------------------------------------------------*/ diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/FreeRTOSConfig.h b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/FreeRTOSConfig.h new file mode 100644 index 000000000..83a56fdc8 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/FreeRTOSConfig.h @@ -0,0 +1,217 @@ +/* + * FreeRTOS Kernel V10.3.0 + * 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. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ + +#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 1L + +/* The address of an echo server is only left in this project as it doubles as + * the address to which logging is sent should UDP logging be enabled. */ +#define configECHO_SERVER_ADDR0 192 +#define configECHO_SERVER_ADDR1 168 +#define configECHO_SERVER_ADDR2 0 +#define configECHO_SERVER_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 ) + +/* Task pool definitions for the demos of IoT Libraries. */ +#define configTASKPOOL_ENABLE_ASSERTS 1 +#define configTASKPOOL_NUMBER_OF_WORKERS 1 +#define configTASKPOOL_WORKER_PRIORITY tskIDLE_PRIORITY +#define configTASKPOOL_WORKER_STACK_SIZE_BYTES 2048 + +#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 */ diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/FreeRTOSIPConfig.h b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/FreeRTOSIPConfig.h new file mode 100644 index 000000000..0c090966e --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/FreeRTOSIPConfig.h @@ -0,0 +1,311 @@ +/* + * FreeRTOS Kernel V10.3.0 + * 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. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ + + +/***************************************************************************** +* +* See the following URL for configuration information. +* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html +* +*****************************************************************************/ + +#ifndef FREERTOS_IP_CONFIG_H +#define FREERTOS_IP_CONFIG_H + +/* Prototype for the function used to print out. In this case it prints to the + * console before the network is connected then a UDP port after the network has + * connected. */ +extern void vLoggingPrintf( const char * pcFormatString, + ... ); + +/* Set to 1 to print out debug messages. If ipconfigHAS_DEBUG_PRINTF is set to + * 1 then FreeRTOS_debug_printf should be defined to the function used to print + * out the debugging messages. */ +#define ipconfigHAS_DEBUG_PRINTF 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 ( 32 ) +#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 */ diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/READ_ME_INSTRUCTIONS.url b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/READ_ME_INSTRUCTIONS.url new file mode 100644 index 000000000..7f0aa1829 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/READ_ME_INSTRUCTIONS.url @@ -0,0 +1,5 @@ +[{000214A0-0000-0000-C000-000000000046}] +Prop3=19,11 +[InternetShortcut] +IDList= +URL=https://www.freertos.org/mqtt/ diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/WIN32.vcxproj b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/WIN32.vcxproj new file mode 100644 index 000000000..7795c1156 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/WIN32.vcxproj @@ -0,0 +1,205 @@ +<?xml version="1.0" encoding="utf-8"?> +<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> + <ItemGroup Label="ProjectConfigurations"> + <ProjectConfiguration Include="Debug|Win32"> + <Configuration>Debug</Configuration> + <Platform>Win32</Platform> + </ProjectConfiguration> + <ProjectConfiguration Include="Release|Win32"> + <Configuration>Release</Configuration> + <Platform>Win32</Platform> + </ProjectConfiguration> + </ItemGroup> + <PropertyGroup Label="Globals"> + <ProjectGuid>{C686325E-3261-42F7-AEB1-DDE5280E1CEB}</ProjectGuid> + <ProjectName>RTOSDemo</ProjectName> + 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Include="..\..\..\..\..\FreeRTOS-Plus\Source\FreeRTOS-Plus-TCP\include\FreeRTOS_Stream_Buffer.h"> + <Filter>FreeRTOS+\FreeRTOS+TCP\include</Filter> + </ClInclude> + <ClInclude Include="..\..\..\..\..\FreeRTOS\Source\include\portable.h"> + <Filter>FreeRTOS\Source\include</Filter> + </ClInclude> + <ClInclude Include="..\..\..\..\..\FreeRTOS\Source\include\projdefs.h"> + <Filter>FreeRTOS\Source\include</Filter> + </ClInclude> + <ClInclude Include="demo_config.h" /> + <ClInclude Include="..\..\..\..\Source\FreeRTOS-IoT-Libraries-LTS-Beta2\c_sdk\standard\mqtt\include\mqtt_lightweight.h"> + <Filter>FreeRTOS+\FreeRTOS IoT Libraries\standard\mqtt\include</Filter> + </ClInclude> + <ClInclude Include="..\..\..\..\Source\FreeRTOS-IoT-Libraries-LTS-Beta2\c_sdk\standard\mqtt\include\mqtt_state.h"> + <Filter>FreeRTOS+\FreeRTOS IoT Libraries\standard\mqtt\include</Filter> + </ClInclude> + <ClInclude Include="..\..\..\..\Source\FreeRTOS-IoT-Libraries-LTS-Beta2\c_sdk\standard\mqtt\include\mqtt.h"> + <Filter>FreeRTOS+\FreeRTOS IoT Libraries\standard\mqtt\include</Filter> + </ClInclude> + <ClInclude Include="mqtt_config.h" /> + <ClInclude Include="..\..\..\..\Source\FreeRTOS-IoT-Libraries-LTS-Beta2\abstractions\platform\freertos\transport_interface_freertos.h"> + <Filter>FreeRTOS+\FreeRTOS IoT Libraries\platform</Filter> + </ClInclude> + <ClInclude Include="..\..\..\..\Source\FreeRTOS-IoT-Libraries-LTS-Beta2\c_sdk\platform\transport_interface.h"> + <Filter>FreeRTOS+\FreeRTOS IoT Libraries\platform</Filter> + </ClInclude> + </ItemGroup> +</Project> diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/demo_config.h b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/demo_config.h new file mode 100644 index 000000000..bb7278fff --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/demo_config.h @@ -0,0 +1,87 @@ +/* + * FreeRTOS Kernel V10.3.0 + * 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. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ + +#ifndef DEMO_CONFIG_H +#define DEMO_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 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 "MQTTDemo" +#endif + +#ifndef LIBRARY_LOG_LEVEL + #define LIBRARY_LOG_LEVEL LOG_INFO +#endif +#include "logging_stack.h" + +/************ End of logging configuration ****************/ + +/** + * @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. + * + * #define democonfigCLIENT_IDENTIFIER "insert here." + */ + + +/** + * @brief MQTT broker end point to connect to. + * + * #define democonfigMQTT_BROKER_ENDPOINT "insert here." + */ + + +/** + * @brief The port to use for the demo. + * + * #define democonfigMQTT_BROKER_PORT ( insert here. ) + */ + + +/** + * @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 + +#endif /* DEMO_CONFIG_H */ diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/mqtt_config.h b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/mqtt_config.h new file mode 100644 index 000000000..21135caf7 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/mqtt_config.h @@ -0,0 +1,67 @@ +/* + * FreeRTOS Kernel V10.3.0 + * 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. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ +#ifndef MQTT_CONFIG_H_ +#define 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_NONE +#endif + +#include "logging_stack.h" +/************ End of logging configuration ****************/ + +/** + * @brief The maximum number of MQTT PUBLISH messages that may be pending + * acknowledgement at any time. + * + * QoS 1 and 2 MQTT PUBLISHes require acknowledgment from the server before + * they can be completed. While they are awaiting the acknowledgment, 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. + */ +#define MQTT_STATE_ARRAY_MAX_COUNT 10U + +#endif /* ifndef MQTT_CONFIG_H_ */ diff --git a/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/mqtt_plain_text_demo.sln b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/mqtt_plain_text_demo.sln new file mode 100644 index 000000000..dcfc1fe09 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS-IoT-Libraries-LTS-Beta2/mqtt/mqtt_plain_text/mqtt_plain_text_demo.sln @@ -0,0 +1,25 @@ + +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 diff --git a/FreeRTOS-Plus/Source/FreeRTOS-IoT-Libraries-LTS-Beta2/abstractions/platform/freertos/transport_interface_freertos.c b/FreeRTOS-Plus/Source/FreeRTOS-IoT-Libraries-LTS-Beta2/abstractions/platform/freertos/transport_interface_freertos.c new file mode 100644 index 000000000..87dc58a9e --- /dev/null +++ b/FreeRTOS-Plus/Source/FreeRTOS-IoT-Libraries-LTS-Beta2/abstractions/platform/freertos/transport_interface_freertos.c @@ -0,0 +1,160 @@ +/* + * 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. + */ + +/* Standard includes. */ +#include <string.h> + +/* FreeRTOS includes. */ +#include "FreeRTOS.h" +#include "atomic.h" +#include "semphr.h" + +/* FreeRTOS+TCP includes. */ +#include "FreeRTOS_IP.h" +#include "FreeRTOS_Sockets.h" + +/* Transport interface include. */ +#include "transport_interface_freertos.h" + +/* Maximum number of times to call FreeRTOS_recv when initiating a graceful shutdown. */ +#ifndef TRANSPORT_FREERTOS_SHUTDOWN_LOOPS + #define TRANSPORT_FREERTOS_SHUTDOWN_LOOPS ( 3 ) +#endif + +BaseType_t Transport_FreeRTOS_Connect( NetworkContext_t * pNetworkContext, + const char * pHostName, + uint16_t port, + uint32_t receiveTimeoutMs ) +{ + Socket_t tcpSocket = FREERTOS_INVALID_SOCKET; + BaseType_t socketStatus = 0; + struct freertos_sockaddr serverAddress = { 0 }; + TickType_t receiveTimeout = pdMS_TO_TICKS( receiveTimeoutMs ); + + /* Create a new TCP socket. */ + tcpSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_STREAM, FREERTOS_IPPROTO_TCP ); + + if( tcpSocket == FREERTOS_INVALID_SOCKET ) + { + LogError( ( "Failed to create new socket." ) ); + socketStatus = -1; + } + else + { + LogDebug( ( "Created new TCP socket." ) ); + socketStatus = FreeRTOS_setsockopt( tcpSocket, + 0, + FREERTOS_SO_RCVTIMEO, + &receiveTimeout, + sizeof( TickType_t ) ); + + if( socketStatus != 0 ) + { + LogError( ( "Failed to set socket receive timeout." ) ); + } + } + + if( socketStatus == 0 ) + { + /* Establish connection. */ + serverAddress.sin_family = FREERTOS_AF_INET; + serverAddress.sin_port = FreeRTOS_htons( port ); + serverAddress.sin_addr = FreeRTOS_gethostbyname( pHostName ); + serverAddress.sin_len = ( uint8_t ) sizeof( serverAddress ); + + /* Check for errors from DNS lookup. */ + if( serverAddress.sin_addr == 0 ) + { + LogError( ( "Failed to resolve %s.", pHostName ) ); + socketStatus = -1; + } + } + + if( socketStatus == 0 ) + { + socketStatus = FreeRTOS_connect( tcpSocket, &serverAddress, sizeof( serverAddress ) ); + } + + /* Clean up on failure. */ + if( socketStatus != 0 ) + { + if( tcpSocket != FREERTOS_INVALID_SOCKET ) + { + FreeRTOS_closesocket( tcpSocket ); + } + } + else + { + /* Set the socket. */ + pNetworkContext->tcpSocket = tcpSocket; + LogDebug( ( "TCP Connection to %s established.", pHostName ) ); + } + + return socketStatus; +} + +void Transport_FreeRTOS_Disconnect( const NetworkContext_t * pNetworkContext ) +{ + BaseType_t waitForShutdownLoopCount = 0; + uint8_t pDummyBuffer[ 2 ]; + + if( pNetworkContext->tcpSocket != FREERTOS_INVALID_SOCKET ) + { + /* Initiate graceful shutdown. */ + ( void ) FreeRTOS_shutdown( pNetworkContext->tcpSocket, FREERTOS_SHUT_RDWR ); + + /* Wait for the socket to disconnect gracefully (indicated by FreeRTOS_recv() + * returning a FREERTOS_EINVAL error) before closing the socket. */ + while( FreeRTOS_recv( pNetworkContext->tcpSocket, pDummyBuffer, sizeof( pDummyBuffer ), 0 ) >= 0 ) + { + /* We don't need to delay since FreeRTOS_recv should already have a timeout. */ + + if( ++waitForShutdownLoopCount >= TRANSPORT_FREERTOS_SHUTDOWN_LOOPS ) + { + break; + } + } + + ( void ) FreeRTOS_closesocket( pNetworkContext->tcpSocket ); + } +} + +int32_t Transport_FreeRTOS_recv( NetworkContext_t * pNetworkContext, + void * pBuffer, + size_t bytesToRecv ) +{ + int32_t socketStatus = 0; + + socketStatus = FreeRTOS_recv( pNetworkContext->tcpSocket, pBuffer, bytesToRecv, 0 ); + + return socketStatus; +} + +int32_t Transport_FreeRTOS_send( NetworkContext_t * pNetworkContext, + const void * pBuffer, + size_t bytesToSend ) +{ + int32_t socketStatus = 0; + + socketStatus = FreeRTOS_send( pNetworkContext->tcpSocket, pBuffer, bytesToSend, 0 ); + + return socketStatus; +} diff --git a/FreeRTOS-Plus/Source/FreeRTOS-IoT-Libraries-LTS-Beta2/abstractions/platform/freertos/transport_interface_freertos.h b/FreeRTOS-Plus/Source/FreeRTOS-IoT-Libraries-LTS-Beta2/abstractions/platform/freertos/transport_interface_freertos.h new file mode 100644 index 000000000..07fcad0c0 --- /dev/null +++ b/FreeRTOS-Plus/Source/FreeRTOS-IoT-Libraries-LTS-Beta2/abstractions/platform/freertos/transport_interface_freertos.h @@ -0,0 +1,116 @@ +/* + * 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. + */ + +#ifndef TRANSPORT_INTERFACE_FREERTOS_H_ +#define TRANSPORT_INTERFACE_FREERTOS_H_ + +/**************************************************/ +/******* DO NOT CHANGE the following order ********/ +/**************************************************/ + +/* Logging related header files are required to be included in the following order: + * 1. Include the header file "logging_levels.h". + * 2. Define LIBRARY_LOG_NAME and LIBRARY_LOG_LEVEL. + * 3. Include the header file "logging_stack.h". + */ + +/* Include header that defines log levels. */ +#include "logging_levels.h" + +/* Logging configuration for the Sockets. */ +#ifndef LIBRARY_LOG_NAME + #define LIBRARY_LOG_NAME "FreeRTOSTransport" +#endif +#ifndef LIBRARY_LOG_LEVEL + #define LIBRARY_LOG_LEVEL LOG_DEBUG +#endif + +#include "logging_stack.h" + +/************ End of logging configuration ****************/ + +/* FreeRTOS+TCP include. */ +#include "FreeRTOS_Sockets.h" + +/* Transport interface include. */ +#include "transport_interface.h" + +/** + * @brief Network context definition for FreeRTOS sockets. + */ +struct NetworkContext +{ + Socket_t tcpSocket; +}; + +/** + * @brief Create a TCP connection with FreeRTOS sockets. + * + * @param[out] pNetworkContext Pointer to a network context to contain the + * initialized socket handle. + * @param[in] pHostName The hostname of the remote endpoint. + * @param[in] port The destination port. + * @param[in] receiveTimeoutMs Receive socket timeout. + * + * @return Non-zero value on error, 0 on success. + */ +BaseType_t Transport_FreeRTOS_Connect( NetworkContext_t * pNetworkContext, + const char * pHostName, + uint16_t port, + uint32_t receiveTimeoutMs ); + +/** + * @brief Gracefully disconnect an established TCP connection. + * + * @param[in] pNetworkContext Network context containing the TCP socket handle. + */ +void Transport_FreeRTOS_Disconnect( const NetworkContext_t * pNetworkContext ); + +/** + * @brief Receives data from an established TCP connection. + * + * @param[in] pNetworkContext The network context containing the TCP socket + * handle. + * @param[out] pBuffer Buffer to receive bytes into. + * @param[in] bytesToRecv Number of bytes to receive from the network. + * + * @return Number of bytes received if successful; 0 if the socket times out; + * Negative value on error. + */ +int32_t Transport_FreeRTOS_recv( NetworkContext_t * pNetworkContext, + void * pBuffer, + size_t bytesToRecv ); + +/** + * @brief Sends data over an established TCP connection. + * + * @param[in] pNetworkContext The network context containing the TCP socket + * handle. + * @param[in] pBuffer Buffer containing the bytes to send. + * @param[in] bytesToSend Number of bytes to send from the buffer. + * + * @return Number of bytes sent on success; else a negative value. + */ +int32_t Transport_FreeRTOS_send( NetworkContext_t * pNetworkContext, + const void * pBuffer, + size_t bytesToSend ); + +#endif /* ifndef TRANSPORT_INTERFACE_FREERTOS_H_ */ |