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devin-ai-integration[bot]danielinux
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danielinux
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Add FreeRTOS + wolfIP + wolfMQTT TLS example
- Implements MQTT client with TLS 1.3 using wolfMQTT and wolfSSL - Uses wolfIP for network stack integration - Runs on FreeRTOS POSIX simulation - Includes test scripts and documentation - Network configuration: 10.10.0.1 (broker), 10.10.0.10 (client) - Supports publish/subscribe on test/topic Co-Authored-By: [email protected] <[email protected]>
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‎fullstack/freertos-wolfip-wolfmqtt/.gitignore‎

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# FreeRTOS directories managed by setup script
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freertos/FreeRTOS/
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freertos/FreeRTOS-Kernel/
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# Certificate files
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certs/
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# Build directory
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build/
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# Object files
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*.o
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*.ko
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*.obj
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*.elf
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# Libraries
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*.lib
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*.a
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*.la
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*.lo
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# Executables
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*.exe
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*.out
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*.app
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*.i*86
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*.x86_64
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*.hex
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# Debug files
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*.dSYM/

‎fullstack/freertos-wolfip-wolfmqtt/CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.13)
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project(freertos_wolfssl_demo C)
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# Set C standard
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_STANDARD_REQUIRED ON)
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# wolfSSL configuration
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add_definitions(-DWOLFSSL_USER_SETTINGS)
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# FreeRTOS Kernel source files for POSIX port
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set(FREERTOS_PORT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/portable/ThirdParty/GCC/Posix)
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set(FREERTOS_HEAP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/portable/MemMang)
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# Include directories
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include_directories(
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${CMAKE_CURRENT_SOURCE_DIR}/include
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/include
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${FREERTOS_PORT_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip/src
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip/src/http
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip/src/port
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfssl
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfssl/include
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfMQTT
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)
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# FreeRTOS source files
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set(FREERTOS_SOURCES
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/tasks.c
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/queue.c
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/list.c
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/timers.c
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/event_groups.c
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/FreeRTOS-Kernel/stream_buffer.c
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${FREERTOS_PORT_DIR}/port.c
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${FREERTOS_HEAP_DIR}/heap_3.c
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${CMAKE_CURRENT_SOURCE_DIR}/freertos/utils/utils.c
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)
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# Add wolfIP library
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add_library(wolfip STATIC
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip/src/wolfip.c
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip/src/http/httpd.c
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfip/src/port/wolfssl_io.c
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)
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# Add the main application
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add_executable(freertos_sim
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${FREERTOS_SOURCES}
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src/main.c
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src/wolfip_freertos.c
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src/mqtt_client.c
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src/mqtt_net.c
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)
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target_link_libraries(freertos_sim
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pthread
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wolfip
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfMQTT/src/.libs/libwolfmqtt.a
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${CMAKE_CURRENT_SOURCE_DIR}/../../../wolfssl/src/.libs/libwolfssl.a
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m
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crypto
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)

‎fullstack/freertos-wolfip-wolfmqtt/freertos/utils/utils.c‎

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#include <errno.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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typedef struct event_t {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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int value;
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} event_t;
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event_t *event_create(void) {
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event_t *event = malloc(sizeof(event_t));
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if (event != NULL) {
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pthread_mutex_init(&event->mutex, NULL);
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pthread_cond_init(&event->cond, NULL);
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event->value = 0;
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}
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return event;
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}
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void event_delete(event_t *event) {
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if (event != NULL) {
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pthread_mutex_destroy(&event->mutex);
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pthread_cond_destroy(&event->cond);
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free(event);
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}
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}
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void event_signal(event_t *event) {
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if (event != NULL) {
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pthread_mutex_lock(&event->mutex);
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event->value = 1;
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pthread_cond_signal(&event->cond);
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pthread_mutex_unlock(&event->mutex);
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}
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}
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void event_wait(event_t *event) {
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if (event != NULL) {
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pthread_mutex_lock(&event->mutex);
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while (event->value == 0) {
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pthread_cond_wait(&event->cond, &event->mutex);
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}
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event->value = 0;
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pthread_mutex_unlock(&event->mutex);
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}
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}

‎fullstack/freertos-wolfip-wolfmqtt/include/FreeRTOSConfig.h‎

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/* FreeRTOSConfig.h
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*
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* Copyright (C) 2006-2024 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef FREERTOS_CONFIG_H
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#define FREERTOS_CONFIG_H
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/* Scheduler Related */
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#define configUSE_PREEMPTION 1
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#define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
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#define configUSE_TICKLESS_IDLE 0
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#define configCPU_CLOCK_HZ ( ( unsigned long ) 60000000 )
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#define configTICK_RATE_HZ ( ( TickType_t ) 1000 )
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#define configMAX_PRIORITIES 5
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#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 4096 )
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#define configMAX_TASK_NAME_LEN 16
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#define configUSE_16_BIT_TICKS 0
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#define configIDLE_SHOULD_YIELD 1
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#define configUSE_TASK_NOTIFICATIONS 1
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#define configTASK_NOTIFICATION_ARRAY_ENTRIES 3
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#define configUSE_MUTEXES 1
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#define configUSE_RECURSIVE_MUTEXES 1
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#define configUSE_COUNTING_SEMAPHORES 1
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#define configQUEUE_REGISTRY_SIZE 10
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#define configUSE_QUEUE_SETS 0
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#define configUSE_TIME_SLICING 1
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#define configUSE_NEWLIB_REENTRANT 0
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#define configENABLE_BACKWARD_COMPATIBILITY 0
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#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 5
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#define configUSE_MINI_LIST_ITEM 1
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/* Memory allocation related definitions. */
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#define configSUPPORT_STATIC_ALLOCATION 0
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#define configSUPPORT_DYNAMIC_ALLOCATION 1
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#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 60 * 1024 ) )
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#define configAPPLICATION_ALLOCATED_HEAP 0
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/* Hook function related definitions. */
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#define configUSE_IDLE_HOOK 0
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#define configUSE_TICK_HOOK 0
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#define configCHECK_FOR_STACK_OVERFLOW 0
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#define configUSE_MALLOC_FAILED_HOOK 0
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#define configUSE_DAEMON_TASK_STARTUP_HOOK 0
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/* Run time and task stats gathering related definitions. */
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#define configGENERATE_RUN_TIME_STATS 0
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#define configUSE_TRACE_FACILITY 0
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#define configUSE_STATS_FORMATTING_FUNCTIONS 0
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/* Co-routine related definitions. */
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#define configUSE_CO_ROUTINES 0
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#define configMAX_CO_ROUTINE_PRIORITIES 1
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/* Software timer related definitions. */
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#define configUSE_TIMERS 1
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#define configTIMER_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
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#define configTIMER_QUEUE_LENGTH 10
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#define configTIMER_TASK_STACK_DEPTH configMINIMAL_STACK_SIZE
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/* Define to trap errors during development. */
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#define configASSERT( x )
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/* Optional functions - most linkers will remove unused functions anyway. */
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#define INCLUDE_vTaskPrioritySet 1
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#define INCLUDE_uxTaskPriorityGet 1
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#define INCLUDE_vTaskDelete 1
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#define INCLUDE_vTaskSuspend 1
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#define INCLUDE_xResumeFromISR 1
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#define INCLUDE_vTaskDelayUntil 1
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#define INCLUDE_vTaskDelay 1
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#define INCLUDE_xTaskGetSchedulerState 1
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#define INCLUDE_xTaskGetCurrentTaskHandle 1
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#define INCLUDE_uxTaskGetStackHighWaterMark 0
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#define INCLUDE_xTaskGetIdleTaskHandle 0
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#define INCLUDE_eTaskGetState 0
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#define INCLUDE_xEventGroupSetBitFromISR 1
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#define INCLUDE_xTimerPendFunctionCall 0
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#define INCLUDE_xTaskAbortDelay 0
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#define INCLUDE_xTaskGetHandle 0
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#define INCLUDE_xTaskResumeFromISR 1
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/* POSIX Port specific definitions. */
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#define configPOSIX_STACK_SIZE ( ( unsigned short ) 8192 )
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#endif /* FREERTOS_CONFIG_H */

‎fullstack/freertos-wolfip-wolfmqtt/include/user_settings.h‎

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/* user_settings.h
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*
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* Copyright (C) 2006-2024 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef USER_SETTINGS_H
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#define USER_SETTINGS_H
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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/* wolfSSL TLS configuration */
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#define WOLFSSL_TLS13
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#define WOLFSSL_TLS13_NO_OLD_TLS
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#define WOLFSSL_CERT_GEN
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#define WOLFSSL_DES_ECB
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#define HAVE_HKDF
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#define HAVE_AEAD
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#define HAVE_SUPPORTED_CURVES
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#define WOLFSSL_AES_DIRECT
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#define HAVE_TLS_EXTENSIONS
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#define HAVE_SNI
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#define HAVE_OCSP
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#define HAVE_CERTIFICATE_STATUS_REQUEST
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#define WOLFSSL_ALWAYS_VERIFY_CB
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#define WOLFSSL_VERIFY_CB_ALL_CERTS
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/* wolfMQTT configuration */
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#define WOLFMQTT_NO_ERROR_STRINGS
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#define WOLFMQTT_NONBLOCK
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#define WOLFMQTT_ENABLE_NONBLOCK
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#define ENABLE_MQTT_TLS
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#define MQTT_MAX_PACKET_SIZE 1024
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#define MQTT_DEFAULT_CMD_TIMEOUT_MS 5000
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/* wolfIP configuration */
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#define WOLFIP_DEBUG
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#define WOLFIP_CHECKSUM_VERIFY
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/* Socket configuration */
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#define WOLFIP_AF_INET 2
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#define WOLFIP_SOCK_STREAM 1
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#define WOLFIP_SOCK_DGRAM 2
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#endif /* USER_SETTINGS_H */

‎fullstack/freertos-wolfip-wolfmqtt/setup.sh‎

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#!/bin/bash
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# Script to setup FreeRTOS environment for wolfSSL examples
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set -e
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FREERTOS_REPO="https://github.com/FreeRTOS/FreeRTOS.git"
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FREERTOS_KERNEL_REPO="https://github.com/FreeRTOS/FreeRTOS-Kernel.git"
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echo "Setting up FreeRTOS simulation environment..."
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# Create directories if they don't exist
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mkdir -p freertos
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cd freertos
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# Clone FreeRTOS repositories if they don't exist
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if [ ! -d "FreeRTOS" ]; then
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git clone $FREERTOS_REPO
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fi
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if [ ! -d "FreeRTOS-Kernel" ]; then
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git clone $FREERTOS_KERNEL_REPO
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fi
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echo "FreeRTOS repositories cloned successfully"
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# Create basic directory structure for our project
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mkdir -p ../src
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mkdir -p ../include
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mkdir -p ../build
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# Create utils directory and copy utils.c from HTTPS example
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mkdir -p utils
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cp ../freertos-wolfip-wolfssl-https/freertos/utils/utils.c utils/
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echo "Directory structure created"
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echo "Setup complete!"

‎fullstack/freertos-wolfip-wolfmqtt/setup_network.sh‎

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#!/bin/bash
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# Configure host TAP interface for wolfSSL embedded testing
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# Creates a TAP interface for virtual networking between host and FreeRTOS
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# Check if running as root
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if [ "$EUID" -ne 0 ]; then
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echo "Please run as root (sudo)"
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exit 1
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fi
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# Remove existing interface if present
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ip link show wtap0 >/dev/null 2>&1 && ip link delete wtap0
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# Create new TAP interface and configure it
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ip tuntap add dev wtap0 mode tap
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ip link set wtap0 down
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ip addr flush dev wtap0
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ip addr add 10.10.0.1/24 dev wtap0
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ip link set wtap0 up
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echo "TAP interface wtap0 configured with IP 10.10.0.1/24"

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