blocking OTA Tx and Rx

Reviewed-on: #1

.gitignore

@@ -52,3 +52,11 @@ Module.symvers
 Mkfile.old
 dkms.conf
 
+build/
+
+test/build/
+
+*.old
+
+*.orig
+

CMakeLists.txt

@@ -3,4 +3,4 @@
 cmake_minimum_required(VERSION 3.5)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(internal_communication)
+project(mesh_ota)

Makefile

@@ -3,6 +3,6 @@
 # project subdirectory.
 #
 
-PROJECT_NAME := internal_communication
+PROJECT_NAME := mesh_ota
 
 include $(IDF_PATH)/make/project.mk

components/mesh_ota/CMakeLists.txt

@@ -0,0 +1,7 @@
+idf_component_register(SRCS "HTTPS_client.c" "Mesh_network_handler.c" "Mesh_network.c" "Mesh_OTA.c"
+                    INCLUDE_DIRS "include" 
+                    REQUIRES nvs_flash
+                    esp_http_client
+                    bootloader_support
+                    app_update
+                    log)

components/mesh_ota/HTTPS_client.c

@@ -0,0 +1,280 @@
+#include "HTTPS_client.h"
+
+static const char *TAG = "https_client";
+
+static const char *REQUEST = "GET " CONFIG_OTA_HTTPS_URL " HTTP/1.1\r\n"
+                             "Host: "CONFIG_OTA_HTTPS_SERVER_COMMON_NAME"\r\n"
+                             "User-Agent: esp-idf/1.0 esp32\r\n"
+                             "Authorization: Basic " CONFIG_OTA_HTTPS_AUTH "\r\n"
+                             "\r\n";
+
+
+static HTTPS_Client_t sHTTPS_ClientConfig;
+
+https_client_ret_t https_clientInitEmbedTLS();
+https_client_ret_t errHTTPSClientConnectToServer();
+https_client_ret_t errHTTPSClientValidateServer();
+https_client_ret_t errHTTPSClientSendRequest();
+
+https_client_ret_t errHTTPSClientInitialize()
+{
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+
+    i32RetHTTPClient = https_clientInitEmbedTLS();
+
+    if (i32RetHTTPClient == HTTPS_CLIENT_ERROR_INIT_EMBEDTLS)
+        {
+            ESP_LOGE(TAG, "Unable to initialize EmbedTLS");
+            i32RetHTTPClient = HTTPS_CLIENT_ERROR;
+        }
+    return i32RetHTTPClient;
+}
+
+https_client_ret_t errHTTPSClientRetrieveData(char* pu8Data, uint32_t* pu32DataLenght, uint32_t* pu32BytesRead)
+{
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+    int32_t i32RetRetrieveData = ESP_OK;
+    bool bRetriveData = true;
+
+    bzero(pu8Data, *pu32DataLenght);
+    *pu32BytesRead = 0U;
+
+    while (bRetriveData)
+        {
+            mbedtls_ssl_conf_read_timeout(&sHTTPS_ClientConfig.conf, HTTPS_READ_TIMEOUT); //set timeout
+            //Reading HTTP response
+            i32RetRetrieveData = mbedtls_ssl_read(&sHTTPS_ClientConfig.ssl, (unsigned char *)(pu8Data+(*pu32BytesRead)), ((*pu32DataLenght)-(*pu32BytesRead)));
+
+            if(i32RetRetrieveData > 0)
+                {
+                    //Data received
+                    *pu32BytesRead = *pu32BytesRead + i32RetRetrieveData;
+
+                    if(*pu32DataLenght > 0)
+                        {
+                            //buffer not full yet --> read some more
+                            bRetriveData = true;
+                        }
+                    else
+                        {
+                            //buffer full --> stop reading
+                            bRetriveData = false;
+                        }
+                }
+
+            if(i32RetRetrieveData == 0)
+                {
+                    //all data read --> stop reading
+                    bRetriveData = false;
+                    pu32BytesRead = 0;
+                }
+
+            if(i32RetRetrieveData == MBEDTLS_ERR_SSL_TIMEOUT )
+                {
+                    //timeout --> stop reading
+                    bRetriveData = false;
+                }
+
+            if(i32RetRetrieveData == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY)
+                {
+                    //connection is going to be closed
+                    i32RetHTTPClient = HTTPS_CLIENT_ERROR;
+                    bRetriveData = false;
+                }
+        }
+    return i32RetHTTPClient;
+}
+
+https_client_ret_t errHTTPSClientReset()
+{
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+
+    i32RetHTTPClient = mbedtls_ssl_close_notify(&sHTTPS_ClientConfig.ssl); //close session
+
+    if(i32RetHTTPClient != ESP_OK)
+        {
+            ESP_LOGE(TAG, "mbedtls_ssl_close_notify returned 0x%x", i32RetHTTPClient);
+        }
+
+    mbedtls_ssl_session_reset(&sHTTPS_ClientConfig.ssl); //reset embedssl
+    mbedtls_net_free(&sHTTPS_ClientConfig.server_fd); //free ram
+
+    return i32RetHTTPClient;
+}
+
+https_client_ret_t https_clientInitEmbedTLS()
+{
+
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+    int32_t i32RetEmbedTLS = ESP_OK;
+    static bool bAlreadySetup = false;
+
+    mbedtls_ssl_init(&sHTTPS_ClientConfig.ssl);
+    mbedtls_x509_crt_init(&sHTTPS_ClientConfig.cacert);
+    mbedtls_ctr_drbg_init(&sHTTPS_ClientConfig.ctr_drbg);
+    mbedtls_ssl_config_init(&sHTTPS_ClientConfig.conf);
+    mbedtls_entropy_init(&sHTTPS_ClientConfig.entropy);
+
+    i32RetEmbedTLS = mbedtls_ctr_drbg_seed(&sHTTPS_ClientConfig.ctr_drbg, mbedtls_entropy_func, &sHTTPS_ClientConfig.entropy, NULL, 0);
+
+    if(i32RetEmbedTLS!= ESP_OK)
+        {
+            ESP_LOGE(TAG, "mbedtls_ctr_drbg_seed returned %d", i32RetEmbedTLS);
+        }
+
+    if(i32RetEmbedTLS == ESP_OK)
+        {
+            //Attaching the certificate bundle
+            i32RetEmbedTLS = esp_crt_bundle_attach(&sHTTPS_ClientConfig.conf);
+            if(i32RetEmbedTLS != ESP_OK)
+                {
+                    ESP_LOGE(TAG, "esp_crt_bundle_attach returned 0x%x\n\n", i32RetEmbedTLS);
+                }
+        }
+
+    if(i32RetEmbedTLS == ESP_OK)
+        {
+            //Setting hostname for TLS session.
+            i32RetEmbedTLS = mbedtls_ssl_set_hostname(&sHTTPS_ClientConfig.ssl, CONFIG_OTA_HTTPS_SERVER_COMMON_NAME);
+            // Hostname set here should match CN in server certificate
+            if(i32RetEmbedTLS != ESP_OK)
+                {
+                    ESP_LOGE(TAG, "mbedtls_ssl_set_hostname returned 0x%x", i32RetEmbedTLS);
+                }
+        }
+    if(i32RetEmbedTLS == ESP_OK)
+        {
+            //Setting up the SSL/TLS structure
+            i32RetEmbedTLS = mbedtls_ssl_config_defaults(&sHTTPS_ClientConfig.conf,
+                             MBEDTLS_SSL_IS_CLIENT,
+                             MBEDTLS_SSL_TRANSPORT_STREAM,
+                             MBEDTLS_SSL_PRESET_DEFAULT);
+
+            if(i32RetEmbedTLS != ESP_OK)
+                {
+                    ESP_LOGE(TAG, "mbedtls_ssl_config_defaults returned %d", i32RetEmbedTLS);
+                }
+        }
+
+    if(i32RetEmbedTLS == ESP_OK)
+        {
+            mbedtls_ssl_conf_authmode(&sHTTPS_ClientConfig.conf, MBEDTLS_SSL_VERIFY_REQUIRED);
+            mbedtls_ssl_conf_ca_chain(&sHTTPS_ClientConfig.conf, &sHTTPS_ClientConfig.cacert, NULL);
+            mbedtls_ssl_conf_rng(&sHTTPS_ClientConfig.conf, mbedtls_ctr_drbg_random, &sHTTPS_ClientConfig.ctr_drbg);
+
+            if (bAlreadySetup == false) //check if mbedtls_ssl_setup was called before
+                {
+                    i32RetEmbedTLS = mbedtls_ssl_setup(&sHTTPS_ClientConfig.ssl, &sHTTPS_ClientConfig.conf); //call this only once
+                    if(i32RetEmbedTLS != ESP_OK)
+                        {
+                            ESP_LOGE(TAG, "mbedtls_ssl_setup returned 0x%x\n\n", i32RetEmbedTLS);
+
+                            // uint8_t buffer[20];
+                            //mbedtls_strerror(i32RetEmbedTLS, buffer, 20);
+                            //ESP_LOGE(TAG, "%s", buffer);
+                        }
+                    else
+                        {
+                            bAlreadySetup = true;
+                        }
+
+                }
+
+
+        }
+
+    if(i32RetEmbedTLS == ESP_OK)
+        {
+            mbedtls_net_init(&sHTTPS_ClientConfig.server_fd);
+        }
+
+    if (i32RetEmbedTLS != ESP_OK)
+        {
+            i32RetHTTPClient = HTTPS_CLIENT_ERROR_INIT_EMBEDTLS;
+        }
+
+    return i32RetHTTPClient;
+}
+
+https_client_ret_t errHTTPSClientConnectToServer()
+{
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+    int32_t i32RetServerConnect = ESP_OK;
+
+    //Connecting to server
+    i32RetServerConnect = mbedtls_net_connect(&sHTTPS_ClientConfig.server_fd, CONFIG_OTA_HTTPS_SERVER_COMMON_NAME, CONFIG_OTA_HTTPS_SERVER_PORT, MBEDTLS_NET_PROTO_TCP);
+    if (i32RetServerConnect != ESP_OK)
+        {
+            ESP_LOGE(TAG, "mbedtls_net_connect returned %x", i32RetServerConnect);
+        }
+
+    if(i32RetServerConnect == ESP_OK)
+        {
+            mbedtls_ssl_set_bio(&sHTTPS_ClientConfig.ssl, &sHTTPS_ClientConfig.server_fd, mbedtls_net_send, mbedtls_net_recv, mbedtls_net_recv_timeout);
+
+            //Performing the SSL/TLS handshake
+            while ((i32RetServerConnect = mbedtls_ssl_handshake(&sHTTPS_ClientConfig.ssl)) != 0)
+                {
+                    if ((i32RetServerConnect != MBEDTLS_ERR_SSL_WANT_READ) && (i32RetServerConnect != MBEDTLS_ERR_SSL_WANT_WRITE))
+                        {
+                            ESP_LOGE(TAG, "mbedtls_ssl_handshake returned 0x%x", i32RetServerConnect);
+                        }
+                }
+        }
+
+    if(i32RetServerConnect != ESP_OK)
+        {
+            i32RetHTTPClient = HTTPS_CLIENT_ERROR_INIT_CONNECT_TWO_SERVER;
+        }
+    return i32RetHTTPClient;
+}
+
+https_client_ret_t errHTTPSClientValidateServer()
+{
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+    int32_t i32RetValidateServer = ESP_OK;
+
+    //Verifying peer X.509 certificate
+    if ((i32RetValidateServer = mbedtls_ssl_get_verify_result(&sHTTPS_ClientConfig.ssl)) != 0)
+        {
+            ESP_LOGE(TAG, "Failed to verify peer certificate!");
+        }
+
+    if(i32RetValidateServer != ESP_OK)
+        {
+            i32RetHTTPClient = HTTPS_CLIENT_ERROR_INIT_VALIDATE_SERVER;
+        }
+    return i32RetHTTPClient;
+}
+
+https_client_ret_t errHTTPSClientSendRequest()
+{
+    https_client_ret_t i32RetHTTPClient = HTTPS_CLIENT_OK;
+    int32_t i32RetSendRequest = ESP_OK;
+    uint32_t u32WrittenBytes = 0;
+    bool bWrite = true; //flag to stop loop
+
+    //Writing HTTP request
+    while((u32WrittenBytes < strlen(REQUEST)) && bWrite)
+        {
+            i32RetSendRequest = mbedtls_ssl_write(&sHTTPS_ClientConfig.ssl,
+                                                  (const unsigned char *)REQUEST + u32WrittenBytes,
+                                                  strlen(REQUEST) - u32WrittenBytes);
+            if (i32RetSendRequest >= 0)
+                {
+                    //bytes written
+                    u32WrittenBytes += i32RetSendRequest;
+                }
+            else if (i32RetSendRequest != MBEDTLS_ERR_SSL_WANT_WRITE && i32RetSendRequest != MBEDTLS_ERR_SSL_WANT_READ)
+                {
+                    ESP_LOGE(TAG, "mbedtls_ssl_write returned 0x%x", i32RetSendRequest);
+                    bWrite = false;
+                }
+        }
+
+    if(bWrite == false)
+        {
+            i32RetHTTPClient = HTTPS_CLIENT_ERROR_INIT_SEND_REQUEST;
+        }
+    return i32RetHTTPClient;
+}

components/mesh_ota/Mesh_OTA.c

@@ -0,0 +1,992 @@
+#include "Mesh_OTA.h"
+
+static const char *LOG_TAG = "mesh_ota";
+
+xQueueHandle queueNodes; //nodes that should be checked for ota update (contains children and parent)
+xQueueHandle queueMessageOTA; //mesh ota controll messages like "OTA_Version_Response" "OTA_ACK"
+
+SemaphoreHandle_t bsStartStopServerWorker; //binary semaphore
+SemaphoreHandle_t bsOTAProcess; //binary semaphore
+
+const esp_partition_t* pOTAPartition; //pointer to ota partition
+bool bWantReboot; //flag to signal pending reboot
+
+bool bOtaAbortTx = false;
+esp_partition_t* pBootPartitionTx; //pointer to boot partition (that will booted after reset)
+uint32_t u32OTABytesWrittenTx = 0U;
+uint32_t u32SegmentCounterTx = 0U;
+bool bNodeIsRespondingTx = false; //remote node is still active
+
+esp_err_t errMeshOTAInitialize()
+{
+    esp_err_t err = ESP_OK;
+    BaseType_t xReturned;
+    bWantReboot = false;
+
+    //create queue to store nodes for ota worker task
+    queueNodes = xQueueCreate(QUEUE_NODES_SIZE, sizeof(mesh_addr_t));
+    if (queueNodes == 0)  // Queue not created
+        {
+            ESP_LOGE(LOG_TAG, "Unable to create Queue for Nodes");
+            err = ESP_FAIL;
+        }
+
+    if(err == ESP_OK)
+        {
+            //create queue to store ota messages
+            queueMessageOTA = xQueueCreate(QUEUE_MESSAGE_OTA_SIZE, sizeof(MESH_PACKET_t));
+            if (queueMessageOTA == 0)  // Queue not created
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to create Queue for OTA Messages");
+                    err = ESP_FAIL;
+                }
+        }
+
+    if(err == ESP_OK)
+        {
+            bsStartStopServerWorker = xSemaphoreCreateBinary();
+            if( bsStartStopServerWorker == NULL )
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to create Mutex to represent state of Server worker");
+                    err = ESP_FAIL;
+                }
+        }
+
+    if(err == ESP_OK)
+        {
+            bsOTAProcess = xSemaphoreCreateBinary();
+            if( bsOTAProcess == NULL )
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to create Mutex to grant access to OTA Process");
+                    err = ESP_FAIL;
+                }
+        }
+
+    if(err == ESP_OK)
+        {
+            xSemaphoreGive(bsOTAProcess);  //unlock binary semaphore
+            if( bsOTAProcess == NULL )
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to unlock Mutex to grant access to OTA Process");
+                    err = ESP_FAIL;
+                }
+        }
+
+    ERROR_CHECK(errMeshNetworkSetChildConnectedHandle(vAddNodeToPossibleUpdatableQueue));
+    ERROR_CHECK(errMeshNetworkSetOTAMessageHandle(vAddOTAControllMessageToQueue));
+    ERROR_CHECK(errMeshNetworkSetChangeStateOfServerWorkerHandle(vChangeStateOfServerWorker));
+    ERROR_CHECK(errMeshNetworkSetOtaDataHandle(vRecOtaDataHandler));
+    ERROR_CHECK(errMeshNetworkSetOtaAckHandle(vRecOtaAckHandler));
+    //ERROR_CHECK(errMeshNetworkSetOtaCompleteHandle(vRecOtaCompleteHandler));
+   // ERROR_CHECK(errMeshNetworkSetOtaAbortHandle(vRecOtaAbortHandler));
+
+    if(err == ESP_OK)
+        {
+            pOTAPartition =  esp_ota_get_next_update_partition(NULL); //get ota partition
+
+            if(pOTAPartition == NULL)
+                {
+                    err = ESP_FAIL;
+                    ESP_LOGE(LOG_TAG, "unable to get next ota partition");
+                }
+        }
+
+    if(err == ESP_OK)
+        {
+            xReturned = xTaskCreate(vTaskServerWorker, "vTaskServerWorker", 8192, NULL, 5, NULL);
+            if(xReturned != pdPASS)
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to create the server worker task");
+                    err = ESP_FAIL;
+                }
+        }
+
+
+    if(err == ESP_OK)
+        {
+            xReturned = xTaskCreate(vTaskOTAWorker, "vTaskOTAWorker", 8192, NULL, 5, NULL);
+            if(xReturned != pdPASS)
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to create the OTA worker task");
+                    err = ESP_FAIL;
+                }
+        }
+
+    return err;
+}
+
+void vAddNodeToPossibleUpdatableQueue(uint8_t* pu8MAC)
+{
+    //send payload to node queues
+    mesh_addr_t addrNode;
+    memcpy(&addrNode.addr, (uint8_t *)pu8MAC, 6); //copy MAC
+
+    if (xQueueSend(queueNodes, &addrNode, portMAX_DELAY) != pdPASS)
+        {
+            ESP_LOGE(LOG_TAG, "Unable to push node into node queue");
+        }
+    else
+        {
+            ESP_LOGI(LOG_TAG, "added node \"%x:%x:%x:%x:%x:%x\" to possible updatable queue", addrNode.addr[0], addrNode.addr[1], addrNode.addr[2], addrNode.addr[3], addrNode.addr[4], addrNode.addr[5]);
+        }
+}
+
+void vAddOTAControllMessageToQueue(MESH_PACKET_t* puMeshPacket)
+{
+    //send ota packet to packet queue
+    if (xQueueSend(queueMessageOTA, puMeshPacket, portMAX_DELAY) != pdPASS)
+        {
+            ESP_LOGE(LOG_TAG, "Unable to push ota packet into packet queue");
+        }
+    else
+        {
+            ESP_LOGI(LOG_TAG, "added ota message to queue: %i (type)", puMeshPacket->type);
+        }
+}
+
+void vChangeStateOfServerWorker(bool bState) //allow access via function ptn to networl_handler
+{
+    static bool bLastState = false;
+
+    if(bState != bLastState) //change only if necessary
+        {
+            ESP_LOGI(LOG_TAG, "server worker change handler");
+
+            if(bState == true)
+                {
+                    if (xSemaphoreGive(bsStartStopServerWorker)  != pdTRUE)
+                        {
+                            ESP_LOGE(LOG_TAG, "Unable to give mutex to activate the server worker");
+                        }
+                }
+            else
+                {
+                    if (xSemaphoreTake(bsStartStopServerWorker,( TickType_t ) 10 )  != pdTRUE)
+                        {
+                            ESP_LOGE(LOG_TAG, "Unable to obtain mutex to deactivate the server worker");
+                        }
+                }
+            bLastState = bState;
+        }
+}
+
+void vTaskServerWorker(void *arg)
+{
+    esp_err_t err;
+    bool bNewOTAImage; //true if a new ota image was downloaded and validated
+    bool bFirstRun = true;
+
+    while(true)
+        {
+            err = ESP_OK;
+            bNewOTAImage = false;
+            xSemaphoreTake(bsStartStopServerWorker, portMAX_DELAY); //wait for binary semaphore that allows to start the worker
+            xSemaphoreGive(bsStartStopServerWorker); //free binary semaphore, this allows the handler to change is to taken
+
+            if (esp_mesh_is_root()) //check again that this node is the root node
+                {
+                    ESP_LOGI(LOG_TAG, "Checking firmware image on server");
+
+                    if(bFirstRun == true)
+                        {
+                            ERROR_CHECK(errHTTPSClientInitialize());
+                            bFirstRun = false;
+                        }
+
+                    ERROR_CHECK(errHTTPSClientConnectToServer());
+                    ERROR_CHECK(errHTTPSClientValidateServer());
+                    ERROR_CHECK(errHTTPSClientSendRequest());
+
+                    ERROR_CHECK(errOTAHTTPS(&bNewOTAImage));
+                    errHTTPSClientReset();
+
+                    if(bNewOTAImage == true)
+                        {
+                            //set want reboot
+                            ESP_LOGI(LOG_TAG, "Updated successfully via HTTPS, set pending reboot");
+                            bWantReboot = true;
+                            vAddAllNeighboursToQueue(); //add all existing neighbours to queue (aparent will not be added because this node is the root)
+                        }
+                    vTaskDelay( (SERVER_CHECK_INTERVAL*1000) / portTICK_PERIOD_MS); //sleep till next server checks
+                }
+        }
+}
+
+void vTaskOTAWorker(void *arg)
+{
+    esp_err_t err = ESP_OK;
+    bool bNewOTAImage; //true if a new ota image was downloaded and validated
+    mesh_addr_t meshNodeAddr; //node that should be checked for ota update
+
+    while(true)
+        {
+            err = ESP_OK;
+            bNewOTAImage = false;
+
+            if((uxQueueSpacesAvailable(queueNodes) - QUEUE_NODES_SIZE) == 0)
+                {
+                    //nodes queue is empty
+                    ESP_LOGI(LOG_TAG, "nodes queue is empty");
+
+                    if(bWantReboot == true)
+                        {
+                            ESP_LOGI(LOG_TAG, "ESP32 Reboot ...");
+                            //vTaskDelay( (1000) / portTICK_PERIOD_MS);
+                            //esp_restart();
+                        }
+
+                    ERROR_CHECK(errOTAMeshSlave(&bNewOTAImage));
+                }
+            else
+                {
+                    //queue not empty
+                    ESP_LOGI(LOG_TAG, "nodes queue not empty: %i", (QUEUE_NODES_SIZE - uxQueueSpacesAvailable(queueNodes)));
+
+                    if (xQueueReceive(queueNodes, &meshNodeAddr, ((100) / portTICK_PERIOD_MS)) != pdTRUE)
+                        {
+                            ESP_LOGE(LOG_TAG, "Unable to receive OTA Messages from Queue");
+                            err = ESP_FAIL;
+                        }
+
+                    ERROR_CHECK(errOTAMeshMaster(&bNewOTAImage, &meshNodeAddr));
+
+                    if (err != ESP_OK)
+                        {
+                            //OTA process faild --> add back to queue
+                            vAddNodeToPossibleUpdatableQueue(meshNodeAddr.addr);
+                        }
+                }
+
+            if(bNewOTAImage == true)
+                {
+                    //set want reboot
+                    ESP_LOGI(LOG_TAG, "Updated successfully via Mesh, set pending reboot");
+                    bWantReboot = true;
+                    vAddAllNeighboursToQueue(); //add all existing neighbours to queue
+                }
+            vTaskDelay( (1000) / portTICK_PERIOD_MS); //TODO this is debug
+        }
+}
+
+esp_err_t errOTAHTTPS(bool* pbNewOTAImage)
+{
+    esp_err_t err = ESP_OK;
+    char u8OTABuffer[OTA_HTTPS_SEGMENT_SIZE]; //store image segment from server before ota write
+    uint32_t u32BufferLenght = OTA_HTTPS_SEGMENT_SIZE; //size of buffer
+    uint32_t u32BytesRead = 0; //number of bytes that are read from server, <= u32BufferLenght
+    char pcRemoteVersionNumber[12]; //string for version number in server image
+    const esp_partition_t* pBootPartition; //pointer to boot partition (that will booted after reset)
+    static esp_ota_handle_t otaHandle; //OTA process handle
+    uint32_t u32StartOffset = 0U; //start offset for image (exclude the http response data)
+    esp_app_desc_t bootPartitionDesc; //Metadate from boot partition
+    uint32_t u32OTABytesWritten = 0U; //counter unsed for progress log
+
+    ERROR_CHECK(errHTTPSClientRetrieveData(u8OTABuffer, &u32BufferLenght, &u32BytesRead)); //read first bytes if image, including the version
+
+    ERROR_CHECK(errExtractVersionNumber(u8OTABuffer, &u32BytesRead, pcRemoteVersionNumber)); //extract version numbers
+
+    if(err == ESP_OK) //check if version number is found
+        {
+            xSemaphoreTake(bsOTAProcess, portMAX_DELAY); //wait for binary semaphore that allows to start the OTA process
+
+            pBootPartition = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
+            ERROR_CHECK(esp_ota_get_partition_description(pBootPartition, &bootPartitionDesc)); //get metadata of partition
+
+            if(bNewerVersion((bootPartitionDesc).version, pcRemoteVersionNumber)) //compare local and remote version
+                {
+                    // server image is newer --> OTA update required
+                    ESP_LOGI(LOG_TAG, "Server: image is newer --> OTA update required");
+
+                    ERROR_CHECK(errFindImageStart(u8OTABuffer, &u32BufferLenght, &u32StartOffset)); //get image start offset
+
+                    ERROR_CHECK(esp_ota_begin(pOTAPartition, OTA_SIZE_UNKNOWN, &otaHandle)); //start ota update process
+                    if(err == ESP_OK)
+                        {
+                            //image download and ota partition write
+                            ESP_LOGI(LOG_TAG, "start OTA download via HTTPS");
+                            do
+                                {
+                                    vPrintOTAProgress(&(pOTAPartition->size), &u32OTABytesWritten, Receiver);
+                                    ERROR_CHECK(esp_ota_write(otaHandle, (const void*) u8OTABuffer+u32StartOffset, (u32BytesRead-u32StartOffset)));
+
+                                    if(err == ESP_OK)
+                                        {
+                                            //write was succsesfull
+                                            u32StartOffset = 0U; //reset the offset for next download
+                                            ERROR_CHECK(errHTTPSClientRetrieveData(u8OTABuffer, &u32BufferLenght, &u32BytesRead)); //download next data segment
+                                            u32OTABytesWritten = u32OTABytesWritten + u32BytesRead; //update counter
+                                        }
+                                }
+                            while ((u32BytesRead > 0) && (err == ESP_OK) && (u32OTABytesWritten <= pOTAPartition->size)); //loop until error or complete image downloaded
+                        }
+
+                    if(err == ESP_OK)
+                        {
+                            //no error occurred --> finish ota update process
+                            ERROR_CHECK(esp_ota_end(otaHandle)); //finish process
+                            ERROR_CHECK(esp_ota_set_boot_partition(pOTAPartition)); //set new image as boot
+                            if(err == ESP_OK)
+                                {
+                                    *pbNewOTAImage = true; //image validated
+                                }
+                        }
+                    else
+                        {
+                            //error occurred --> abort ota update process
+                            ESP_LOGE(LOG_TAG, "abort ota process due to error 0x%x -> %s", err, esp_err_to_name(err));
+                            ERROR_CHECK(esp_ota_abort(otaHandle));
+                            *pbNewOTAImage = false; //ota update failed
+                        }
+                }
+            else
+                {
+                    ESP_LOGI(LOG_TAG, "server image is NOT newer --> OTA update NOT required");
+                }
+            xSemaphoreGive(bsOTAProcess); //free binary semaphore, this allows other tasks to start the OTA process
+        } //end version number extracted
+    return err;
+}
+
+esp_err_t errOTAMeshSlave(bool* pbNewOTAImage)
+{
+    esp_err_t err = ESP_OK;
+    MESH_PACKET_t sOTAMessage;
+    const esp_partition_t* pBootPartition; //pointer to boot partition (that will booted after reset)
+    esp_app_desc_t bootPartitionDesc; //Metadate from boot partition
+    *pbNewOTAImage = false; //set default false
+
+    //read OTAMessages queue
+    if(uxQueueSpacesAvailable(queueMessageOTA) < QUEUE_MESSAGE_OTA_SIZE)
+        {
+            //queue not empty
+            if (xQueueReceive(queueMessageOTA, &sOTAMessage, ((100) / portTICK_PERIOD_MS)) != pdTRUE)
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to receive OTA Messages from Queue");
+                    err = ESP_FAIL;
+                }
+
+            if((err == ESP_OK) && (sOTAMessage.type == OTA_Version_Request)) //if OTA_Version_Request
+                {
+                    xSemaphoreTake(bsOTAProcess, portMAX_DELAY); //wait for binary semaphore that allows to start the OTA process
+
+                    pBootPartition = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
+                    ERROR_CHECK(esp_ota_get_partition_description(pBootPartition, &bootPartitionDesc)); //get metadata of partition
+
+                    ESP_LOGI(LOG_TAG, "//send OTA_Version_Response to sender of OTA_Version_Request packet with version in payload");
+                    ERROR_CHECK(errSendOTAVersionResponse(&sOTAMessage.meshSenderAddr));
+
+                    if((bNewerVersion((bootPartitionDesc).version, (char*) sOTAMessage.au8Payload)) && (err == ESP_OK)) //compare local and remote version
+                        {
+                            //remote newer as local
+                            ESP_LOGI(LOG_TAG, "remote image on node is newer --> OTA update required");
+                            //  --> this version older --> start OTA_Rx --> set pbNewOTAImage true
+                            ERROR_CHECK(errOTAMeshReceive(pbNewOTAImage, &sOTAMessage.meshSenderAddr));
+                        }
+
+                    if((bNewerVersion((char*) sOTAMessage.au8Payload, (bootPartitionDesc).version)) && (err == ESP_OK)) //compare remote and local version
+                        {
+                            //local newer as remote
+                            ESP_LOGI(LOG_TAG, "remote image on node is older --> OTA send required");
+                            //  --> this version newer --> start OTA_Tx
+                            ERROR_CHECK(errOTAMeshTransmit(&sOTAMessage.meshSenderAddr));
+                        }
+                    xSemaphoreGive(bsOTAProcess); //free binary semaphore, this allows other tasks to start the OTA process
+                }
+        }
+    return err;
+}
+
+esp_err_t errOTAMeshMaster(bool* pbNewOTAImage, mesh_addr_t* pMeshNodeAddr)
+{
+    esp_err_t err = ESP_OK;
+    MESH_PACKET_t sOTAMessage;
+    const esp_partition_t* pBootPartition; //pointer to boot partition (that will booted after reset)
+    esp_app_desc_t bootPartitionDesc; //Metadata from boot partition
+    bool bNodeIsConnected = false;
+    bool bNodeIsResponding = false;
+
+    *pbNewOTAImage = false; //set default false
+
+    if(bIsNodeNeighbour(pMeshNodeAddr) == true) //check if node is still connected
+        {
+            bNodeIsConnected = true; //node is one of the neighbours
+            xSemaphoreTake(bsOTAProcess, portMAX_DELAY); //wait for binary semaphore that allows to start the OTA process
+
+            ERROR_CHECK(errSendOTAVersionRequest(pMeshNodeAddr)); //send OTA_VERSION_REQUEST with local version in payload
+
+            for (uint32_t u32Index = 0; u32Index < QUEUE_MESSAGE_OTA_SIZE; u32Index++) //loop through all OTA messages
+                {
+                    //if(uxQueueSpacesAvailable(queueMessageOTA) < QUEUE_MESSAGE_OTA_SIZE)
+                    // {
+                    //queue not empty
+                    if (xQueueReceive(queueMessageOTA, &sOTAMessage, ((OTA_MESH_TIMEOUT) / portTICK_PERIOD_MS)) != pdTRUE)
+                        {
+                            ESP_LOGE(LOG_TAG, "Unable to receive OTA Messages from queue");
+                            err = ESP_FAIL;
+                        }
+
+                    if((err == ESP_OK) && (sOTAMessage.type == OTA_Version_Response) && (bCheckMACEquality(sOTAMessage.meshSenderAddr.addr, pMeshNodeAddr->addr))) //if OTA_Version_Request
+                        {
+                            bNodeIsResponding = true;
+                            u32Index = QUEUE_MESSAGE_OTA_SIZE; //this will exit the loop through all OTA messages
+                            pBootPartition = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
+                            ERROR_CHECK(esp_ota_get_partition_description(pBootPartition, &bootPartitionDesc)); //get metadata of partition
+
+                            if((bNewerVersion((bootPartitionDesc).version, (char*) sOTAMessage.au8Payload)) && (err == ESP_OK)) //compare local and remote version
+                                {
+                                    //remote newer as local
+                                    ESP_LOGI(LOG_TAG, "Mesh: remote image on node is newer --> OTA update required");
+                                    //  --> this version older --> start OTA_Rx --> set pbNewOTAImage true
+                                    ERROR_CHECK(errOTAMeshReceive(pbNewOTAImage, &sOTAMessage.meshSenderAddr));
+                                }
+
+                            if((bNewerVersion((char*) sOTAMessage.au8Payload, (bootPartitionDesc).version)) && (err == ESP_OK)) //compare remote and local version
+                                {
+                                    //local newer as remote
+                                    ESP_LOGI(LOG_TAG, "Mesh: remote image on node is older --> OTA send required");
+                                    //  --> this version newer --> start OTA_Tx
+                                    ERROR_CHECK(errOTAMeshTransmit(&sOTAMessage.meshSenderAddr));
+                                }
+                        }
+                    else if (err == ESP_OK)
+                        {
+                            ESP_LOGI(LOG_TAG, "//received from wrong node or type --> back to queue");
+                            vAddOTAControllMessageToQueue(&sOTAMessage);
+                        }
+                    /* }
+                    else
+                     {
+                         ESP_LOGI(LOG_TAG, "// OTA Message queue is empty --> wait some time");
+                         vTaskDelay(OTA_MESH_TIMEOUT*u32Index / portTICK_PERIOD_MS);
+                     }
+                     */
+                }//end loop
+            xSemaphoreGive(bsOTAProcess); //free binary semaphore, this allows other tasks to start the OTA process
+        }
+
+    if((bNodeIsResponding == false) && (bNodeIsConnected == true))
+        {
+            ESP_LOGI(LOG_TAG, "//add node back to queue if connected and NOT responding");
+            vAddNodeToPossibleUpdatableQueue(pMeshNodeAddr->addr);
+        }
+    return err;
+}
+
+bool bNewerVersion(const char* pu8Local, const  char* pu8Remote)
+{
+    /*
+     * Return true if remote version is newer (higher) than local version
+    */
+    char u8LocalTmp[12]; //local version
+    char u8RemoteTmp[12]; //remote version
+    char* pu8saveptrLocal; //context for strok_r
+    char* pu8saveptrRemote; //context for strok_r
+    bool bReturn = false; //flag to stop loop
+    uint8_t u8Index = 0; //numbers counter in version string
+
+    strncpy(u8LocalTmp, pu8Local, 12); //copy in tmp
+    strncpy(u8RemoteTmp, pu8Remote, 12); //copy in tmp
+
+    char* pu8TokenLocal = strtok_r(u8LocalTmp, ".", &pu8saveptrLocal); //split tokens
+    char* pu8TokenRemote = strtok_r(u8RemoteTmp, ".", &pu8saveptrRemote); //split tokens
+
+    while( (u8Index <= 2) && (bReturn == false)) //loop through tokens
+        {
+            u8Index++;
+            if(atoi(pu8TokenLocal) < atoi(pu8TokenRemote))
+                {
+                    bReturn = true; //version number difference --> stop loop
+                }
+            pu8TokenLocal = strtok_r(NULL, ".", &pu8saveptrLocal); //split tokens
+            pu8TokenRemote = strtok_r(NULL, ".", &pu8saveptrRemote); //split tokens
+        }
+    return bReturn;
+}
+
+esp_err_t errFindImageStart(const char* pu8Data, uint32_t* pu32DataLenght, uint32_t* pu32StartOffset)
+{
+    /*
+    Offset  value
+    0      = 0xE9 (first byte in image --> magic byte)
+    48     = first digit of version number
+    */
+
+    esp_err_t errReturn = ESP_OK;
+    bool bImageStartOffsetFound = false;
+    uint32_t u32DataIndex = 0;
+    uint32_t u32FirstDotOffset = 0;
+    uint32_t u32SecondDotOffset = 0;
+    uint8_t u8FirstDotIndex = 0;
+    uint8_t u8SecondDotIndex = 0;
+
+    *pu32StartOffset = 0U; //reset offset to zero
+
+    while((u32DataIndex < *pu32DataLenght) &&  (bImageStartOffsetFound == false))
+        {
+            //search for magic byte
+            if(pu8Data[u32DataIndex] == 0xe9)
+                {
+                    //magic byte found
+                    while ((u8FirstDotIndex < 3) && (u32FirstDotOffset == 0))
+                        {
+                            //search first dot in version number
+                            if((u32DataIndex+49+u8FirstDotIndex) < *pu32DataLenght)
+                                {
+                                    if((pu8Data[(u32DataIndex+49+u8FirstDotIndex)] == 0x2e))
+                                        {
+                                            //first dot found
+                                            u32FirstDotOffset = (u32DataIndex+49+u8FirstDotIndex);
+                                        }
+                                }
+                            u8FirstDotIndex++;
+                        }
+
+                    while ((u8SecondDotIndex < 3) && (u32SecondDotOffset == 0) && (u32FirstDotOffset != 0))
+                        {
+                            //search first dot in version number
+                            if((u32FirstDotOffset+(u8SecondDotIndex+2)) < *pu32DataLenght)
+                                {
+                                    if((pu8Data[(u32FirstDotOffset+(u8SecondDotIndex+2))] == 0x2e))
+                                        {
+                                            //second dot found
+                                            u32SecondDotOffset = (u32FirstDotOffset+(u8SecondDotIndex+2));
+                                        }
+                                }
+                            u8SecondDotIndex++;
+                        }
+
+                    if((u32FirstDotOffset != 0) && (u32SecondDotOffset != 0))
+                        {
+                            //image start found based on magic byte and version number systax
+                            *pu32StartOffset = u32DataIndex; //store image start offset
+                            bImageStartOffsetFound = true;
+                        }
+                    else
+                        {
+                            // this is propably not the magic byte --> reset
+                            u32FirstDotOffset = 0;
+                            u32SecondDotOffset = 0;
+                            u8FirstDotIndex = 0;
+                            u8SecondDotIndex = 0;
+                        }
+                }
+            u32DataIndex++;
+        }
+
+    if(bImageStartOffsetFound == false)
+        {
+            errReturn = ESP_ERR_NOT_FOUND;
+        }
+
+    return errReturn;
+}
+
+esp_err_t errExtractVersionNumber(const char* pu8Data, uint32_t* pu32DataLenght, char* pc8RemoteVersionNumber)
+{
+    uint32_t u32StartOffset;
+    esp_err_t err = ESP_OK;
+
+    strcpy(pc8RemoteVersionNumber, "999.999.999"); //init value
+    err = errFindImageStart(pu8Data, pu32DataLenght, &u32StartOffset); //get image start offset
+
+    if(err == ESP_OK)
+        {
+            //image found
+            strncpy(pc8RemoteVersionNumber, pu8Data+(u32StartOffset+48), 11); //copy version number
+            pc8RemoteVersionNumber[12] = '\0';
+        }
+    return err;
+}
+
+void vPrintOTAProgress(const uint32_t* const pu32TotalImageSize, const uint32_t* const pu32BytesWritten, OTA_MESH_ROLE_t eRole)
+{
+    uint32_t u32Percentage = 0U;
+    static uint32_t u32LastPercentage = 0U;
+
+    if((*pu32BytesWritten) >= (*pu32TotalImageSize))
+        {
+            u32Percentage = 100;
+        }
+    else
+        {
+            u32Percentage = (uint32_t) (((float) (*pu32BytesWritten)/(float) (*pu32TotalImageSize)) * 100.0);
+        }
+
+    if((u32Percentage-u32LastPercentage) >= OTA_PROGRESS_LOG_INTERVAL)
+        {
+            if(eRole == Transmitter)
+                {
+                    ESP_LOGE(LOG_TAG, "Transmitting OTA update: %i %%", u32Percentage);
+                }
+
+            if(eRole == Receiver)
+                {
+                    ESP_LOGE(LOG_TAG, "Receiving OTA update: %i %%", u32Percentage);
+                }
+
+
+
+            u32LastPercentage = u32Percentage;
+        }
+}
+
+void vAddAllNeighboursToQueue(void)
+{
+    esp_err_t err = ESP_OK;
+
+    mesh_addr_t addrParent;  //addr of parent node
+    mesh_addr_t childrenAddr[CONFIG_MESH_ROUTE_TABLE_SIZE]; //array of children attached to this node
+    uint16_t u16ChildrenSize = 0U; //number of children attached to this node
+
+    err = errGetParentNode(&addrParent);
+
+    if(err == ESP_OK)
+        {
+            vAddNodeToPossibleUpdatableQueue(addrParent.addr);
+            ESP_LOGI(LOG_TAG, "added parent");
+        }
+
+    err = ESP_OK; //reset error code
+
+    ERROR_CHECK(errGetChildren(childrenAddr, &u16ChildrenSize)); //get all children
+
+    for (uint16_t u16Index = 0; ((u16Index < u16ChildrenSize) && (err == ESP_OK)); u16Index++)
+        {
+            vAddNodeToPossibleUpdatableQueue(childrenAddr[u16Index].addr);
+            ESP_LOGI(LOG_TAG, "added child");
+        }
+}
+
+esp_err_t errSendOTAVersionResponse(mesh_addr_t* pMeshReceiverAddr)
+{
+    esp_err_t err = ESP_OK;
+    MESH_PACKET_t packet;
+    packet.type = OTA_Version_Response;
+
+    const esp_partition_t* pBootPartition; //pointer to boot partition (that will booted after reset)
+    esp_app_desc_t bootPartitionDesc; //Metadata from boot partition
+
+    pBootPartition = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
+    ERROR_CHECK(esp_ota_get_partition_description(pBootPartition, &bootPartitionDesc)); //get metadate of partition
+    memcpy(&packet.au8Payload, &bootPartitionDesc.version, 12); //copy local version to OTA_Version_Response packet
+    err = errSendMeshPacket(pMeshReceiverAddr, &packet);
+    return err;
+}
+
+esp_err_t errSendOTAVersionRequest(mesh_addr_t* pMeshReceiverAddr)
+{
+    esp_err_t err = ESP_OK;
+    MESH_PACKET_t packet;
+    packet.type = OTA_Version_Request;
+
+    const esp_partition_t* pBootPartition; //pointer to boot partition (that will booted after reset)
+    esp_app_desc_t bootPartitionDesc; //Metadata from boot partition
+
+    pBootPartition = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
+    ERROR_CHECK(esp_ota_get_partition_description(pBootPartition, &bootPartitionDesc)); //get metadate of partition
+    memcpy(&packet.au8Payload, &bootPartitionDesc.version, 12); //copy local version to OTA_Version_Request packet
+    err = errSendMeshPacket(pMeshReceiverAddr, &packet);
+    return err;
+}
+
+esp_err_t errOTAMeshTransmit(mesh_addr_t* pMeshNodeAddr)
+{
+    esp_err_t err = ESP_OK;
+    //const esp_partition_t* pBootPartition; //pointer to boot partition (that will booted after reset)
+    MESH_PACKET_t sMeshPacket; //packet for sending and receiving
+    //uint32_t u32Index = 0U; //index for partition read offset
+    //bool bAbort = false; //abort the OTA process
+    //bool bNodeIsResponding = false; //remote node is still active
+    //uint32_t u32OTABytesWritten = 0U;
+    //uint32_t u32SegmentCounter = 0U;
+
+    pBootPartitionTx = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
+
+    u32OTABytesWrittenTx = 0U;
+    u32SegmentCounterTx = 0U;
+    bNodeIsRespondingTx = false; //remote node is still active
+
+    //loop through partition to read in segmensts until end or error or abort called
+    //  while( ((OTA_MESH_SEGMENT_SIZE * u32SegmentCounter) < pBootPartition->size) && (err == ESP_OK) && (bAbort == false))
+    {
+        //bNodeIsResponding = false; //reset to default
+        /*
+                ESP_LOGI(LOG_TAG, "// read partition with offset based in index");
+                ERROR_CHECK(esp_partition_read(pBootPartition, (OTA_MESH_SEGMENT_SIZE * u32Index), sMeshPacket.au8Payload, OTA_MESH_SEGMENT_SIZE));
+                u32OTABytesWritten = ((u32SegmentCounter+1) * OTA_MESH_SEGMENT_SIZE);
+                vPrintOTAProgress(&(pBootPartition->size), &u32OTABytesWritten, Transmitter);
+
+                if(err == ESP_OK)
+                    {
+                        //ESP_LOGI(LOG_TAG, "//no error while read --> send OTA_DATA packet");
+                        sMeshPacket.type = OTA_Data;
+
+                        if((OTA_MESH_SEGMENT_SIZE * (u32SegmentCounter+1)) >= pBootPartition->size) //check if last segment
+                            {
+                                ESP_LOGI(LOG_TAG, "//last partition image segment --> send OTA_Complete");
+                                sMeshPacket.type = OTA_Complete;
+                                ESP_LOGE(LOG_TAG, "u32SegmentCounter: %i", u32SegmentCounter);
+                            }
+
+                        err = errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
+                    }
+                else
+                    {
+                        ESP_LOGI(LOG_TAG, "// error while read --> send OTA_ABORT and abort this OTA process");
+                        sMeshPacket.type = OTA_Abort;
+                        bAbort = true;
+                        errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
+                    }
+        */
+        // loop through all OTA messages or until abort is called or error
+        for (uint32_t u32Index = 0; ((u32Index < QUEUE_MESSAGE_OTA_SIZE) && (bOtaAbortTx == false)); u32Index++) //loop through all OTA messages
+            {
+                // if(uxQueueSpacesAvailable(queueMessageOTA) < QUEUE_MESSAGE_OTA_SIZE)
+                // {
+                //queue not empty
+                if (xQueueReceive(queueMessageOTA, &sMeshPacket, ((OTA_MESH_TIMEOUT) / portTICK_PERIOD_MS)) != pdTRUE)
+                    {
+                        ESP_LOGE(LOG_TAG, "Unable to receive OTA Messages from queue");
+                        err = ESP_FAIL;
+                    }
+
+                if((err == ESP_OK) && (bCheckMACEquality(sMeshPacket.meshSenderAddr.addr, pMeshNodeAddr->addr))) //if OTA_Version_Request
+                    {
+                        ESP_LOGI(LOG_TAG, "//packet from node received");
+                        switch (sMeshPacket.type)
+                            {
+                            case OTA_Abort: //abort this OTA process
+                                bOtaAbortTx = true;
+                              bNodeIsRespondingTx = true;
+                                break;
+                            default:
+                                ESP_LOGI(LOG_TAG, "//receives wrong OTA message type from node --> back to queue");
+                                vAddOTAControllMessageToQueue(&sMeshPacket);
+                                break;
+                            }
+                    }
+                else if (err == ESP_OK)
+                    {
+                        ESP_LOGI(LOG_TAG, "//received from wrong node --> back to queue");
+                        vAddOTAControllMessageToQueue(&sMeshPacket);
+
+                        if(bNodeIsRespondingTx == false)
+                            {
+                                ESP_LOGI(LOG_TAG, "//no abort was called but node didn’t responded");
+                                bOtaAbortTx = true;
+                                err = ESP_FAIL; //this OTA process failed with error
+                            }
+                        else
+                            {
+                                bNodeIsRespondingTx = false;
+                            }
+
+
+                    }
+                // }
+                // else
+                //{
+                //  ESP_LOGI(LOG_TAG, "// OTA Message queue is empty --> wait some time");
+                //vTaskDelay(OTA_MESH_TIMEOUT*u32Index/ portTICK_PERIOD_MS);
+                // }
+
+            }//end OTA message loop
+
+    }
+       // u32SegmentCounter++;
+        //}//end of partition segment loop
+        return err;
+    }
+
+    esp_err_t errOTAMeshReceive(bool* pbNewOTAImage, mesh_addr_t* pMeshNodeAddr)
+    {
+        esp_err_t err = ESP_OK;
+        MESH_PACKET_t sMeshPacket; //packet for sending and receiving
+        bool bComplete = false; //complete the OTA process
+        bool bAbort = false; //abort the OTA process
+        bool bNodeIsResponding = false; //remote node is still active
+        uint32_t u32OTABytesWritten = 0U; //counter unsed for progress log
+        static esp_ota_handle_t otaHandle; //OTA process handle
+        *pbNewOTAImage = false;
+        uint32_t u32SegmentCounter = 0U;
+
+        ERROR_CHECK(esp_ota_begin(pOTAPartition, OTA_SIZE_UNKNOWN, &otaHandle)); //start ota update process
+
+        //partition segement loop through partition to read in segmensts until end or error or abort called
+        while((bComplete == false) && (err == ESP_OK) && (bAbort == false) && (u32OTABytesWritten <= pOTAPartition->size))
+            {
+                bNodeIsResponding = false; //reset to default
+
+                // loop through all OTA messages or until abort is called
+                for (uint32_t u32Index = 0; ((u32Index < QUEUE_MESSAGE_OTA_SIZE) && (bAbort == false)); u32Index++) //loop through all OTA messages
+                    {
+                        //if(uxQueueSpacesAvailable(queueMessageOTA) < QUEUE_MESSAGE_OTA_SIZE)
+                        // {
+                        //queue not empty
+                        if (xQueueReceive(queueMessageOTA, &sMeshPacket, ((OTA_MESH_TIMEOUT) / portTICK_PERIOD_MS)) != pdTRUE)
+                            {
+                                ESP_LOGE(LOG_TAG, "Unable to receive OTA Messages from queue");
+                                err = ESP_FAIL;
+                            }
+
+                        if((err == ESP_OK) && (bCheckMACEquality(sMeshPacket.meshSenderAddr.addr, pMeshNodeAddr->addr))) //if OTA_Version_Request
+                            {
+                                ESP_LOGI(LOG_TAG, "//packet from node received");
+                                switch (sMeshPacket.type)
+                                    {
+                                    case OTA_Complete:
+                                        ESP_LOGI(LOG_TAG, "//signal end of this OTA process, fall through because same behavior as OTA_Data");
+                                        bComplete = true;
+                                        ESP_LOGE(LOG_TAG, "after rec:Complete u32SegmentCounter: %i", u32SegmentCounter);
+                                    //fall through
+                                    case OTA_Data:
+                                        ESP_LOGI(LOG_TAG, "//data segement received");
+                                        bNodeIsResponding = true;
+                                        u32Index = QUEUE_MESSAGE_OTA_SIZE; //this will exit the loop through all OTA messages
+                                        ERROR_CHECK(esp_ota_write(otaHandle, sMeshPacket.au8Payload, OTA_MESH_SEGMENT_SIZE));
+
+                                        if(err != ESP_OK)
+                                            {
+                                                ESP_LOGE(LOG_TAG, "write error - Segement: %i", u32SegmentCounter);
+                                            }
+
+                                        u32OTABytesWritten = ((u32SegmentCounter+1) * OTA_MESH_SEGMENT_SIZE);
+                                        vPrintOTAProgress(&(pOTAPartition->size), &u32OTABytesWritten, Receiver);
+                                        break;
+                                    case OTA_Abort: //abort this OTA process
+                                        bAbort = true;
+                                        bNodeIsResponding = true;
+                                        break;
+                                    default:
+                                        ESP_LOGI(LOG_TAG, "//receives wrong OTA message type from node --> back to queue");
+                                        vAddOTAControllMessageToQueue(&sMeshPacket);
+                                        break;
+                                    }
+                            }
+                        else if (err == ESP_OK)
+                            {
+                                ESP_LOGI(LOG_TAG, "//received from wrong node --> back to queue");
+                                vAddOTAControllMessageToQueue(&sMeshPacket);
+                            }
+                        //  }
+                        // else
+                        //  {
+                        //     ESP_LOGI(LOG_TAG, "// OTA Message queue is empty --> wait some time");
+                        //   vTaskDelay((OTA_MESH_TIMEOUT*u32Index) / portTICK_PERIOD_MS);
+                        //  }
+
+                    }//end of OTA message loop
+
+                if(bNodeIsResponding == false)
+                    {
+                        ESP_LOGI(LOG_TAG, "//no abort was called but node didn’t responded --> error");
+                        bAbort = true; //this will stop the partition segement loop
+                        err = ESP_FAIL; //this OTA process failed with error
+                    }
+                else
+                    {
+                        ESP_LOGI(LOG_TAG, "//node has responded with OTA_DATA or OTA_Complete or OTA_ABORT");
+                        if(err == ESP_OK)
+                            {
+
+                                if((bAbort == false) && (bComplete == false))
+                                    {
+                                        ESP_LOGI(LOG_TAG, "//no error while ota write --> send OTA_ACK packet");
+                                        sMeshPacket.type = OTA_ACK;
+                                        err = errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
+                                    }
+                            }
+                        else if (bComplete == false)
+                            {
+                                ESP_LOGI(LOG_TAG, "// error while read --> send OTA_ABORT and abort this OTA process");
+                                sMeshPacket.type = OTA_Abort;
+                                bAbort = true;
+                                errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
+                            }
+                    }
+                u32SegmentCounter++;
+            }//end of partition segement loop
+
+        if(bComplete == true)
+            {
+                ESP_LOGI(LOG_TAG, "//all OTA segments received --> validate");
+                ERROR_CHECK(esp_ota_end(otaHandle));
+                ERROR_CHECK(esp_ota_set_boot_partition(pOTAPartition));
+                if(err == ESP_OK)
+                    {
+                        ESP_LOGI(LOG_TAG, "//successfully updated OTA partition");
+                        *pbNewOTAImage = true;
+                    }
+            }
+        else
+            {
+                ESP_LOGI(LOG_TAG, "//not all OTA segments received --> abort this OTA process");
+                ERROR_CHECK(esp_ota_abort(otaHandle));
+            }
+        return err;
+    }
+
+    void vRecOtaDataHandler(MESH_PACKET_t* puMeshPacket)
+    {
+        if(bOtaAbortTx == false)
+            {
+
+            }
+
+    }
+
+    void vRecOtaAckHandler(MESH_PACKET_t* puMeshPacket)
+    {
+        esp_err_t err = ESP_OK;
+
+        MESH_PACKET_t sMeshPacket; //packet for sending and receiving
+
+
+
+        if(bOtaAbortTx == false)
+            {
+
+                //sender node == ota node ?
+                bNodeIsRespondingTx = true;
+                ESP_LOGI(LOG_TAG, "// read partition with offset based in index");
+                ERROR_CHECK(esp_partition_read(pBootPartitionTx, (OTA_MESH_SEGMENT_SIZE * u32SegmentCounterTx), sMeshPacket.au8Payload, OTA_MESH_SEGMENT_SIZE));
+
+                u32OTABytesWrittenTx = ((u32SegmentCounterTx+1) * OTA_MESH_SEGMENT_SIZE);
+
+                vPrintOTAProgress(&(pBootPartitionTx->size), &u32OTABytesWrittenTx, Transmitter);
+
+
+                sMeshPacket.type = OTA_Data;
+
+                if(err != ESP_OK)
+                    {
+                        bOtaAbortTx = true;
+                        sMeshPacket.type = OTA_Abort;
+                    }
+
+                if((OTA_MESH_SEGMENT_SIZE * (u32SegmentCounterTx+1)) >= pBootPartitionTx->size) //check if last segment
+                    {
+                        ESP_LOGI(LOG_TAG, "//last partition image segment --> send OTA_Complete");
+                        sMeshPacket.type = OTA_Complete;
+                        ESP_LOGE(LOG_TAG, "u32SegmentCounterTx: %i", u32SegmentCounterTx);
+                    }
+
+                err = errSendMeshPacket(&puMeshPacket->meshSenderAddr, &sMeshPacket);
+
+                u32SegmentCounterTx++;
+            }
+
+
+
+    }
+/*
+    void vRecOtaCompleteHandler(MESH_PACKET_t* puMeshPacket)
+    {
+return;
+    }
+
+    void vRecOtaAbortHandler(MESH_PACKET_t* puMeshPacket)
+    {
+return;
+    }
+    */

components/mesh_ota/Mesh_network.c

@@ -0,0 +1,376 @@
+
+#include "Mesh_OTA.h"
+
+static const char *LOG_TAG = "mesh_network";
+static uint8_t tx_buf[CONFIG_MESH_MESSAGE_SIZE] = { 0, };
+static uint8_t rx_buf[CONFIG_MESH_MESSAGE_SIZE] = { 0, };
+uint8_t u8ownMAC[6];
+esp_netif_t* netif_sta;
+bool bIsMeshConnected;
+int32_t i32MeshLayer;
+mesh_addr_t meshParentAddr;
+void (*pAppRxHandle)(uint8_t*, uint8_t* );
+void (*pOTAChildConnectHandle)(uint8_t* );
+void (*pOTAMessageHandle)(MESH_PACKET_t* );
+void (*pChangeStateOfServerWorkerHandle)(bool );
+
+void (*pOtaDataHandle)(MESH_PACKET_t* );
+void (*pOtaAckHandle)(MESH_PACKET_t* );
+void (*pOtaCompleteHandle)(MESH_PACKET_t* );
+void (*pOtaAbortHandle)(MESH_PACKET_t* );
+
+
+esp_err_t errMeshNetworkInitialize()
+{
+    //init module variables
+    esp_err_t err;
+    bIsMeshConnected = false;
+    i32MeshLayer = -1;
+    netif_sta = NULL;
+
+    err = nvs_flash_init(); //init non-volatile storage
+
+#ifdef ERASE_NVS
+    if(err == ESP_ERR_NVS_NO_FREE_PAGES) //check if storage is full
+        {
+            ERROR_CHECK(nvs_flash_erase());
+        }
+#endif
+
+    // tcpip initialization
+    ERROR_CHECK(esp_netif_init());
+
+    //event initialization
+    ERROR_CHECK(esp_event_loop_create_default());
+
+    //create network interfaces for mesh (only station instance saved for further manipulation, soft AP instance ignored
+    ERROR_CHECK(esp_netif_create_default_wifi_mesh_netifs(&netif_sta, NULL));
+
+    //wifi initialization
+    ERROR_CHECK(errMeshNetworkInitializeWiFi());
+
+    //mesh initialization
+    ERROR_CHECK(esp_mesh_init());
+
+    //mesh initialization
+    ERROR_CHECK(esp_event_handler_register(MESH_EVENT, ESP_EVENT_ANY_ID, &vMeshEventHandler, NULL));
+
+    //set mesh topology
+    ERROR_CHECK(esp_mesh_set_topology(CONFIG_MESH_TOPOLOGY));
+
+    //set mesh max layer according to the topology
+    ERROR_CHECK(esp_mesh_set_max_layer(CONFIG_MESH_MAX_LAYER));
+    ERROR_CHECK(esp_mesh_set_vote_percentage(1));
+    ERROR_CHECK(esp_mesh_set_xon_qsize(128));
+
+    //Disable mesh PS function
+    ERROR_CHECK(esp_mesh_disable_ps());
+    ERROR_CHECK(esp_mesh_set_ap_assoc_expire(10));
+
+    mesh_cfg_t cfg = MESH_INIT_CONFIG_DEFAULT();
+
+    /* mesh ID */
+    memcpy((uint8_t *) &cfg.mesh_id, CONFIG_MESH_ID, 6);
+
+    ERROR_CHECK(errMeshNetworkInitializeRouter(&cfg));
+
+    /* mesh softAP */
+    ERROR_CHECK(esp_mesh_set_ap_authmode(CONFIG_MESH_AP_AUTHMODE));
+    cfg.mesh_ap.max_connection = CONFIG_MESH_AP_CONNECTIONS;
+    memcpy((uint8_t *) &cfg.mesh_ap.password, CONFIG_MESH_AP_PASSWD,
+           strlen(CONFIG_MESH_AP_PASSWD));
+    ERROR_CHECK(esp_mesh_set_config(&cfg));
+
+    /* mesh start */
+    ERROR_CHECK(esp_mesh_start());
+
+    ERROR_CHECK(esp_base_mac_addr_get(u8ownMAC))
+
+    //debug info
+    ESP_LOGD(LOG_TAG, "mesh starts successfully, heap:%d, %s<%d>%s, ps:%d\n",  esp_get_minimum_free_heap_size(),
+             esp_mesh_is_root_fixed() ? "root fixed" : "root not fixed",
+             esp_mesh_get_topology(), esp_mesh_get_topology() ? "(chain)":"(tree)", esp_mesh_is_ps_enabled());
+
+
+    ESP_LOGI(LOG_TAG, "Node MAC: \"%x:%x:%x:%x:%x:%x\" ", u8ownMAC[0], u8ownMAC[1], u8ownMAC[2], u8ownMAC[3], u8ownMAC[4], u8ownMAC[5]);
+
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkInitializeWiFi()
+{
+//wifi initialization
+    esp_err_t err = ESP_OK;
+    wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT();
+    ERROR_CHECK(esp_wifi_init(&config));
+    ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &vIPEventHandler, NULL));
+    ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_FLASH));
+    ERROR_CHECK(esp_wifi_start());
+    return err;
+}
+
+esp_err_t errMeshNetworkInitializeRouter(mesh_cfg_t* cfg)
+{
+//router initialization
+    esp_err_t err = ESP_OK;
+    (*cfg).channel = CONFIG_MESH_CHANNEL;
+    (*cfg).router.ssid_len = strlen(CONFIG_MESH_ROUTER_SSID);
+    memcpy((uint8_t *) &(*cfg).router.ssid, CONFIG_MESH_ROUTER_SSID, (*cfg).router.ssid_len);
+    memcpy((uint8_t *) &(*cfg).router.password, CONFIG_MESH_ROUTER_PASSWD,
+           strlen(CONFIG_MESH_ROUTER_PASSWD));
+    return err;
+}
+
+//returns true if MAC address is equal
+bool bCheckMACEquality(uint8_t* pu8aMAC,  uint8_t* pu8bMAC)
+{
+    bool bRet = true;
+    uint8_t index = 0;
+
+    while ((index < 6) && (bRet == true))
+        {
+            if(pu8aMAC[index] != pu8bMAC[index])
+                {
+                    bRet = false;
+                }
+            index++;
+        }
+    return bRet;
+}
+
+esp_err_t errGetChildren(mesh_addr_t* pChildren, uint16_t* pu16ChildrenSize)
+{
+    esp_err_t err = ESP_OK;
+    int route_table_size = 0;
+    *pu16ChildrenSize = 0;
+    mesh_addr_t route_table[CONFIG_MESH_ROUTE_TABLE_SIZE];
+    ERROR_CHECK(esp_mesh_get_routing_table((mesh_addr_t *) &route_table, (CONFIG_MESH_ROUTE_TABLE_SIZE * 6), &route_table_size));
+
+    if (err == ESP_OK)
+        {
+            for(uint16_t index = 0; index < esp_mesh_get_routing_table_size(); index++)
+                {
+                    if(! (bCheckMACEquality(u8ownMAC, route_table[index].addr))  )
+                        {
+                            //child node
+                            //ESP_LOGI(LOG_TAG, "adding Node: \"0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\" ", route_table[index].addr[0], route_table[index].addr[1], route_table[index].addr[2], route_table[index].addr[3], route_table[index].addr[4], route_table[index].addr[5]);
+                            pChildren[*pu16ChildrenSize] = route_table[index];
+                            *pu16ChildrenSize = (*pu16ChildrenSize)+1;
+                        }
+                }
+        }
+    return err;
+}
+
+esp_err_t errGetParentNode(mesh_addr_t* pMeshParentAddr)
+{
+    esp_err_t err = ESP_OK;
+
+    if((bIsMeshConnected == false) || (esp_mesh_is_root()))
+        {
+            //this node is not connected or is the root --> this node has no parent
+            err = ESP_FAIL;
+        }
+    else
+        {
+            //node has parent
+            memcpy(pMeshParentAddr, &meshParentAddr, sizeof(mesh_addr_t));
+        }
+    return err;
+}
+
+void vGetOwnAddr(mesh_addr_t* pMeshOwnAddr)
+{
+    memcpy(pMeshOwnAddr->addr, u8ownMAC, 6);
+}
+
+bool bIsRootNode()
+{
+    return esp_mesh_is_root();
+}
+
+bool bIsNodeNeighbour(mesh_addr_t* pNode)
+{
+    esp_err_t err = ESP_OK;
+    bool bReturn = false;
+    mesh_addr_t addrParent;  //addr of parent node
+    mesh_addr_t childrenAddr[CONFIG_MESH_ROUTE_TABLE_SIZE]; //array of children attached to this node
+    uint16_t u16ChildrenSize = 0U; //number of children attached to this node
+
+    err = errGetParentNode(&addrParent);
+
+    if(err == ESP_OK)
+        {
+            if(bCheckMACEquality(pNode->addr,  addrParent.addr) == true)
+                {
+                    bReturn = true; //node was found
+                }
+        }
+
+    if(bReturn == false)
+        {
+            err = ESP_OK; //reset error code
+
+            ERROR_CHECK(errGetChildren(childrenAddr, &u16ChildrenSize)); //get all children
+
+            for (uint16_t u16Index = 0; ((u16Index < u16ChildrenSize) && (err == ESP_OK) && (bReturn == false)); u16Index++)
+                {
+                    if(bCheckMACEquality(pNode->addr,  childrenAddr[u16Index].addr) == true)
+                        {
+                            bReturn = true; //node was found
+                        }
+                }
+        }
+    return bReturn;
+}
+
+esp_err_t errMeshNetworkSetAppReceiveHandle(void (*pAppRxHandleTmp)(uint8_t * pu8Data, uint8_t* pu8Sender))
+{
+    pAppRxHandle = pAppRxHandleTmp; //set handle from app as receive handle if an app packet is received
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetChildConnectedHandle(void (*pChildConnectHandleTmp)(uint8_t * pu8Data))
+{
+    pOTAChildConnectHandle = pChildConnectHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetOTAMessageHandle(void (*pOTAMessageHandleTmp)(MESH_PACKET_t* puMeshPacket))
+{
+    pOTAMessageHandle = pOTAMessageHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetOtaDataHandle(void (*pOtaDataHandleTmp)(MESH_PACKET_t* puMeshPacket))
+{
+    pOtaDataHandle = pOtaDataHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetOtaAckHandle(void (*pOtaAckHandleTmp)(MESH_PACKET_t* puMeshPacket))
+{
+    pOtaAckHandle = pOtaAckHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetOtaCompleteHandle(void (*pOtaCompleteHandleTmp)(MESH_PACKET_t* puMeshPacket))
+{
+    pOtaCompleteHandle = pOtaCompleteHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetOtaAbortHandle(void (*pOtaAbortHandleTmp)(MESH_PACKET_t* puMeshPacket))
+{
+    pOtaAbortHandle = pOtaAbortHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errMeshNetworkSetChangeStateOfServerWorkerHandle(void (*pChangeStateOfServerWorkerHandleTmp)(bool bState))
+{
+    pChangeStateOfServerWorkerHandle = pChangeStateOfServerWorkerHandleTmp;
+    return ESP_OK;
+}
+
+esp_err_t errSendMeshPacket(mesh_addr_t* pAddrDest, MESH_PACKET_t* pPacket)
+{
+    esp_err_t err;
+    mesh_data_t data;
+    data.data = tx_buf;
+    data.size = sizeof(tx_buf);
+    data.proto = MESH_PROTO_BIN;
+    data.tos = MESH_TOS_P2P;
+    memcpy(tx_buf, (uint8_t *)pPacket, sizeof(MESH_PACKET_t));
+
+    err = esp_mesh_send(pAddrDest, &data, MESH_DATA_P2P, NULL, 0);
+
+    return err;
+}
+
+esp_err_t errStartReceiveTask()
+{
+    esp_err_t err = ESP_OK;
+    BaseType_t xReturned;
+
+    xReturned = xTaskCreate(vTaskReceiveMeshData, "ReceiveMeshData", 7000, NULL, 5, NULL);
+
+    if(xReturned != pdPASS)
+        {
+            err = ESP_FAIL;
+        }
+    return err;
+}
+
+void vTaskReceiveMeshData(void *arg)
+{
+    esp_err_t err;
+    mesh_addr_t from;
+    mesh_data_t data;
+    int flag = 0;
+    data.data = rx_buf;
+    data.size = CONFIG_MESH_MESSAGE_SIZE;
+
+    while (true)
+        {
+            data.size = CONFIG_MESH_MESSAGE_SIZE;
+            err = esp_mesh_recv(&from, &data, portMAX_DELAY, &flag, NULL, 0);
+            if (err != ESP_OK || !data.size)
+                {
+                    ESP_LOGE(LOG_TAG, "err:0x%x, size:%d", err, data.size);
+                    continue;
+                }
+            MESH_PACKET_t packet;
+            memcpy(&packet, (uint8_t *)rx_buf, sizeof(MESH_PACKET_t)); //parse MESH_PACKET_t
+            memcpy(&packet.meshSenderAddr, &from, sizeof(mesh_addr_t)); //copy sender into packet
+
+            switch (packet.type)
+                {
+                case APP_Data:
+                    ESP_LOGD(LOG_TAG, "recv: APP_Data");
+                    //call the rx handle from app
+                    pAppRxHandle(packet.au8Payload, from.addr);  //hand over payload and sender of this mesh packet
+                    break;
+                case OTA_Version_Request:
+                case OTA_Version_Response:
+                case OTA_Complete:
+                case OTA_Abort:
+                    //call the rx handle from OTA
+                    if(pOTAMessageHandle)
+                        {
+                            pOTAMessageHandle(&packet);
+                        }
+                    break;
+                case OTA_Data:
+                    if(pOtaDataHandle)
+                        {
+                            pOtaDataHandle(&packet);
+                        }
+                    break;
+                case OTA_ACK:
+                    if(pOtaAckHandle)
+                        {
+                            pOtaAckHandle(&packet);
+                        }
+                    break;
+                /* case OTA_Complete:
+                     if(pOtaCompleteHandle)
+                         {
+                             pOtaCompleteHandle(&packet);
+                         }
+                     break;
+                 case OTA_Abort:
+                     if(pOtaAbortHandle)
+                         {
+                             pOtaAbortHandle(&packet);
+                         }
+                     break;
+                     */
+                default:
+                    ESP_LOGE(LOG_TAG, "recv: something");
+                    break;
+                }//end switch
+        } //end while
+}
+
+
+

components/mesh_ota/Mesh_network_handler.c

@@ -0,0 +1,230 @@
+
+#include "Mesh_OTA.h"
+
+static const char *LOG_TAG = "mesh_network_handler";
+
+void vIPEventHandler(void *arg, esp_event_base_t event_base, int32_t i32EventID, void *vpEventData)
+{
+    ip_event_got_ip_t *event = (ip_event_got_ip_t *) vpEventData;
+    ESP_LOGI(LOG_TAG, "<IP_EVENT_STA_GOT_IP>IP:" IPSTR, IP2STR(&event->ip_info.ip));
+    if(pChangeStateOfServerWorkerHandle)
+        {
+            pChangeStateOfServerWorkerHandle(true);   //signal that this node (root node) has access to internet
+        }
+}
+
+void vMeshEventHandler(void *arg, esp_event_base_t event_base, int32_t i32EventID, void* vpEventData)
+{
+    mesh_addr_t id = {0,};
+    static uint16_t last_layer = 0;
+
+    switch (i32EventID)
+        {
+        case MESH_EVENT_STARTED:
+        {
+            esp_mesh_get_id(&id);
+            ESP_LOGI(LOG_TAG, "<MESH_EVENT_MESH_STARTED>ID:"MACSTR"", MAC2STR(id.addr));
+bIsMeshConnected = false;
+i32MeshLayer = esp_mesh_get_layer();
+}
+break;
+        case MESH_EVENT_STOPPED: 
+{
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_STOPPED>");
+bIsMeshConnected = false;
+i32MeshLayer = esp_mesh_get_layer();
+}
+break;
+        case MESH_EVENT_CHILD_CONNECTED: 
+{
+mesh_event_child_connected_t *child_connected = (mesh_event_child_connected_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_CHILD_CONNECTED>aid:%d, "MACSTR"", child_connected->aid, MAC2STR(child_connected->mac));
+
+if(pOTAChildConnectHandle){pOTAChildConnectHandle(child_connected->mac);}//add this child to queue using handle
+
+}
+break;
+        case MESH_EVENT_CHILD_DISCONNECTED: 
+{
+mesh_event_child_disconnected_t *child_disconnected = (mesh_event_child_disconnected_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_CHILD_DISCONNECTED>aid:%d, "MACSTR"",
+child_disconnected->aid,
+MAC2STR(child_disconnected->mac));
+}
+break;
+        case MESH_EVENT_ROUTING_TABLE_ADD: 
+{
+mesh_event_routing_table_change_t *routing_table = (mesh_event_routing_table_change_t *)vpEventData;
+ESP_LOGW(LOG_TAG, "<MESH_EVENT_ROUTING_TABLE_ADD>add %d, new:%d, layer:%d",
+routing_table->rt_size_change,
+routing_table->rt_size_new, i32MeshLayer);
+}
+break;
+        case MESH_EVENT_ROUTING_TABLE_REMOVE: 
+{   
+mesh_event_routing_table_change_t *routing_table = (mesh_event_routing_table_change_t *)vpEventData;
+ESP_LOGW(LOG_TAG, "<MESH_EVENT_ROUTING_TABLE_REMOVE>remove %d, new:%d, layer:%d",
+routing_table->rt_size_change,
+routing_table->rt_size_new, i32MeshLayer);
+}
+break;
+        case MESH_EVENT_NO_PARENT_FOUND: 
+{
+mesh_event_no_parent_found_t *no_parent = (mesh_event_no_parent_found_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_NO_PARENT_FOUND>scan times:%d",
+no_parent->scan_times);
+/* TODO handler for the failure, maybe nominate themselves */
+}
+break;
+        case MESH_EVENT_PARENT_CONNECTED: 
+{
+mesh_event_connected_t *connected = (mesh_event_connected_t *)vpEventData;
+esp_mesh_get_id(&id);
+i32MeshLayer = connected->self_layer;
+memcpy(&meshParentAddr.addr, connected->connected.bssid, 6); 
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_PARENT_CONNECTED>layer:%d-->%d, parent:"MACSTR"%s, ID:"MACSTR", duty:%d",
+last_layer, i32MeshLayer, MAC2STR(meshParentAddr.addr),
+esp_mesh_is_root() ? "<ROOT>" : (i32MeshLayer == 2) ? "<layer2>" : "", //print own node title
+MAC2STR(id.addr), connected->duty);
+last_layer = i32MeshLayer;
+bIsMeshConnected = true;
+if (esp_mesh_is_root()) 
+{
+if(esp_netif_dhcpc_start(netif_sta) == ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED) //get a IP from router
+{
+if(pChangeStateOfServerWorkerHandle){pChangeStateOfServerWorkerHandle(true);}// signal reconnect
+} 
+}
+errStartReceiveTask();//start receiving
+}
+break;
+        case MESH_EVENT_PARENT_DISCONNECTED: 
+{
+mesh_event_disconnected_t *disconnected = (mesh_event_disconnected_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_PARENT_DISCONNECTED>reason:%d", disconnected->reason);
+bIsMeshConnected = false;
+if(pChangeStateOfServerWorkerHandle){pChangeStateOfServerWorkerHandle(false);}
+i32MeshLayer = esp_mesh_get_layer();
+}
+break;
+        case MESH_EVENT_LAYER_CHANGE: 
+{
+mesh_event_layer_change_t *layer_change = (mesh_event_layer_change_t *)vpEventData;
+i32MeshLayer = layer_change->new_layer;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_LAYER_CHANGE>layer:%d-->%d%s",
+last_layer, i32MeshLayer,
+esp_mesh_is_root() ? "<ROOT>" : (i32MeshLayer == 2) ? "<layer2>" : "");
+last_layer = i32MeshLayer;
+}
+break;
+        case MESH_EVENT_ROOT_ADDRESS: 
+{
+mesh_event_root_address_t *root_addr = (mesh_event_root_address_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_ROOT_ADDRESS>root address:"MACSTR"",
+MAC2STR(root_addr->addr));
+}
+break;
+        case MESH_EVENT_VOTE_STARTED: 
+{
+mesh_event_vote_started_t *vote_started = (mesh_event_vote_started_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_VOTE_STARTED>attempts:%d, reason:%d, rc_addr:"MACSTR"",
+vote_started->attempts,
+vote_started->reason,
+MAC2STR(vote_started->rc_addr.addr));
+}
+break;
+        case MESH_EVENT_VOTE_STOPPED: 
+{
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_VOTE_STOPPED>");
+}
+break;
+        case MESH_EVENT_ROOT_SWITCH_REQ: 
+{
+mesh_event_root_switch_req_t *switch_req = (mesh_event_root_switch_req_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_ROOT_SWITCH_REQ>reason:%d, rc_addr:"MACSTR"", switch_req->reason,
+MAC2STR( switch_req->rc_addr.addr));
+}
+break;
+        case MESH_EVENT_ROOT_SWITCH_ACK: 
+{
+//new root
+i32MeshLayer = esp_mesh_get_layer();
+esp_mesh_get_parent_bssid(&meshParentAddr);
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_ROOT_SWITCH_ACK>layer:%d, parent:"MACSTR"", i32MeshLayer, MAC2STR(meshParentAddr.addr));
+}
+break;
+        case MESH_EVENT_TODS_STATE: 
+{
+mesh_event_toDS_state_t *toDs_state = (mesh_event_toDS_state_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_TODS_REACHABLE>state:%d", *toDs_state);
+}
+break;
+        case MESH_EVENT_ROOT_FIXED: 
+{
+mesh_event_root_fixed_t *root_fixed = (mesh_event_root_fixed_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_ROOT_FIXED>%s",
+root_fixed->is_fixed ? "fixed" : "not fixed");
+}
+break;
+        case MESH_EVENT_ROOT_ASKED_YIELD: 
+{
+mesh_event_root_conflict_t *root_conflict = (mesh_event_root_conflict_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_ROOT_ASKED_YIELD>"MACSTR", rssi:%d, capacity:%d",
+MAC2STR(root_conflict->addr), root_conflict->rssi, root_conflict->capacity);
+}
+break;
+        case MESH_EVENT_CHANNEL_SWITCH: 
+{
+mesh_event_channel_switch_t *channel_switch = (mesh_event_channel_switch_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_CHANNEL_SWITCH>new channel:%d", channel_switch->channel);
+}
+break;
+        case MESH_EVENT_SCAN_DONE: 
+{
+mesh_event_scan_done_t *scan_done = (mesh_event_scan_done_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_SCAN_DONE>number:%d", scan_done->number);
+}
+break;
+        case MESH_EVENT_NETWORK_STATE: 
+{
+mesh_event_network_state_t *network_state = (mesh_event_network_state_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_NETWORK_STATE>is_rootless:%d", network_state->is_rootless);
+}
+break;
+        case MESH_EVENT_STOP_RECONNECTION: 
+{
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_STOP_RECONNECTION>");    
+}
+break;
+        case MESH_EVENT_FIND_NETWORK: 
+{
+mesh_event_find_network_t *find_network = (mesh_event_find_network_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_FIND_NETWORK>new channel:%d, router BSSID:"MACSTR"",
+find_network->channel, MAC2STR(find_network->router_bssid));
+}
+break;
+        case MESH_EVENT_ROUTER_SWITCH: 
+{
+mesh_event_router_switch_t *router_switch = (mesh_event_router_switch_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_ROUTER_SWITCH>new router:%s, channel:%d, "MACSTR"",
+router_switch->ssid, router_switch->channel, MAC2STR(router_switch->bssid));
+}
+break;
+        case MESH_EVENT_PS_PARENT_DUTY: 
+{
+mesh_event_ps_duty_t *ps_duty = (mesh_event_ps_duty_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_PS_PARENT_DUTY>duty:%d", ps_duty->duty);
+}
+break;
+        case MESH_EVENT_PS_CHILD_DUTY: 
+{
+mesh_event_ps_duty_t *ps_duty = (mesh_event_ps_duty_t *)vpEventData;
+ESP_LOGI(LOG_TAG, "<MESH_EVENT_PS_CHILD_DUTY>cidx:%d, "MACSTR", duty:%d", ps_duty->child_connected.aid-1,
+MAC2STR(ps_duty->child_connected.mac), ps_duty->duty);
+}
+break;
+        default:
+            ESP_LOGI(LOG_TAG, "unknown id:%d", i32EventID);
+        break;
+    }
+}

components/mesh_ota/include/HTTPS_client.h

@@ -0,0 +1,80 @@
+#ifndef H_HTTPS_CLIENT
+#define H_HTTPS_CLIENT
+
+#include <string.h>
+#include <stdlib.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_wifi.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_system.h"
+#include "nvs_flash.h"
+#include "esp_netif.h"
+
+#include "lwip/err.h"
+#include "lwip/sockets.h"
+#include "lwip/sys.h"
+#include "lwip/netdb.h"
+#include "lwip/dns.h"
+
+#include "mbedtls/platform.h"
+#include "mbedtls/net_sockets.h"
+#include "mbedtls/esp_debug.h"
+#include "mbedtls/ssl.h"
+#include "mbedtls/entropy.h"
+#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/error.h"
+#include "mbedtls/certs.h"
+#include "esp_crt_bundle.h"
+
+#ifndef CONFIG_OTA_HTTPS_URL
+#define CONFIG_OTA_HTTPS_URL "https://exmaple.com/theImage.bin"
+#endif
+
+#ifndef CONFIG_OTA_HTTPS_SERVER_PORT
+#define CONFIG_OTA_HTTPS_SERVER_PORT "443"
+#endif
+
+#ifndef CONFIG_OTA_HTTPS_AUTH
+#define CONFIG_OTA_HTTPS_AUTH "base64(user:password)"
+#endif
+
+#ifndef CONFIG_OTA_HTTPS_SERVER_COMMON_NAME
+#define CONFIG_OTA_HTTPS_SERVER_COMMON_NAME "exmaple.com"
+#endif
+
+#define HTTPS_CLIENT_OK 0
+#define HTTPS_CLIENT_ERROR -1
+#define HTTPS_CLIENT_ERROR_INIT_EMBEDTLS -2
+#define HTTPS_CLIENT_ERROR_INIT_CONNECT_TWO_SERVER -3
+#define HTTPS_CLIENT_ERROR_INIT_VALIDATE_SERVER -4
+#define HTTPS_CLIENT_ERROR_INIT_SEND_REQUEST -5
+
+#define HTTPS_READ_TIMEOUT 1000 //ms
+
+struct HTTPS_Client
+{
+    mbedtls_entropy_context entropy;
+    mbedtls_ctr_drbg_context ctr_drbg;
+    mbedtls_ssl_context ssl;
+    mbedtls_x509_crt cacert;
+    mbedtls_ssl_config conf;
+    mbedtls_net_context server_fd;
+};
+
+typedef int32_t https_client_ret_t;
+typedef struct HTTPS_Client HTTPS_Client_t;
+
+https_client_ret_t errHTTPSClientInitialize();
+https_client_ret_t errHTTPSClientConnectToServer();
+https_client_ret_t errHTTPSClientValidateServer();
+https_client_ret_t errHTTPSClientSendRequest();
+https_client_ret_t errHTTPSClientRetrieveData(char* pu8Data, uint32_t* pu32DataLenght, uint32_t* pu32BytesRead);
+https_client_ret_t errHTTPSClientReset();
+
+#endif /* H_HTTPS_CLIENT */
+
+
+
+

components/mesh_ota/include/Mesh_OTA.h

@@ -0,0 +1,79 @@
+#ifndef H_MESH_OTA
+#define H_MESH_OTA
+
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_system.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_mesh.h"
+#include "esp_mesh_internal.h"
+#include "nvs_flash.h"
+#include "driver/gpio.h"
+#include "esp_ota_ops.h"
+#include "esp_partition.h"
+
+#include "Mesh_network.h"
+#include "HTTPS_client.h"
+
+#define ERASE_NVS //erase non volatile storage if full
+#define QUEUE_NODES_SIZE 10
+#define QUEUE_MESSAGE_OTA_SIZE 10
+#define SERVER_CHECK_INTERVAL 30 //in seconds
+#define OTA_HTTPS_SEGMENT_SIZE 2048U
+#define OTA_PROGRESS_LOG_INTERVAL 7U
+#define OTA_MESH_SEGMENT_SIZE MESH_NETWORK_PAYLOAD_SIZE
+#define OTA_MESH_TIMEOUT 100U //in ms
+
+#define ERROR_CHECK(x) if (err == ESP_OK)                                                               \
+    {                                                                                                   \
+        err = (x);                                                                                      \
+        if (err != ESP_OK)                                                                              \
+            {                                                                                           \
+                ESP_LOGE(LOG_TAG,  "%s failed with error: 0x%x -> %s", #x,  err, esp_err_to_name(err)); \
+            }                                                                                           \
+    }                                                                                                   \
+
+enum otaMeshRole
+{
+    Transmitter,
+    Receiver
+};
+
+typedef  enum otaMeshRole OTA_MESH_ROLE_t;
+
+esp_err_t errMeshOTAInitialize();
+
+esp_err_t errOTAHTTPS(bool* pbNewOTAImage);
+esp_err_t errOTAMeshSlave(bool* pbNewOTAImage);
+esp_err_t errOTAMeshMaster(bool* pbNewOTAImage, mesh_addr_t* pMeshNodeAddr);
+esp_err_t errOTAMeshTransmit(mesh_addr_t* pMeshNodeAddr);
+esp_err_t errOTAMeshReceive(bool* pbNewOTAImage, mesh_addr_t* pMeshNodeAddr);
+
+
+//helper functions
+bool bNewerVersion(const char* pu8Local, const char* pu8Remote);
+esp_err_t errExtractVersionNumber(const  char* pu8Data, uint32_t* pu32DataLenght, char* pc8RemoteVersionNumber);
+esp_err_t errFindImageStart(const  char* pu8Data, uint32_t* pu32DataLenght, uint32_t* pu32StartOffset);
+void vPrintOTAProgress(const uint32_t* const pu32TotalImageSize, const uint32_t* const pu32BytesWritten, OTA_MESH_ROLE_t eRole);
+void vAddAllNeighboursToQueue(void);
+esp_err_t errSendOTAVersionResponse(mesh_addr_t* meshReceiverAddr);
+esp_err_t errSendOTAVersionRequest(mesh_addr_t* meshReceiverAddr);
+
+//Handler
+void vAddNodeToPossibleUpdatableQueue(uint8_t* pu8MAC);
+void vAddOTAControllMessageToQueue(MESH_PACKET_t* puMeshPacket);
+void vChangeStateOfServerWorker(bool state);
+
+void vRecOtaDataHandler(MESH_PACKET_t* puMeshPacket);
+void vRecOtaAckHandler(MESH_PACKET_t* puMeshPacket);
+//void vRecOtaCompleteHandler(MESH_PACKET_t* puMeshPacket);
+//void vRecOtaAbortHandler(MESH_PACKET_t* puMeshPacket);
+
+//Tasks
+void vTaskServerWorker(void *arg);
+void vTaskOTAWorker(void *arg);
+
+
+
+#endif /* H_MESH_OTA */

components/mesh_ota/include/Mesh_network.h

@@ -0,0 +1,110 @@
+#ifndef H_MESH_NETWORK
+#define H_MESH_NETWORK
+
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_system.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_mesh.h"
+#include "esp_mesh_internal.h"
+
+#ifndef CONFIG_MESH_MESSAGE_SIZE
+#define CONFIG_MESH_MESSAGE_SIZE 1500
+#endif
+#ifndef CONFIG_MESH_TOPOLOGY
+#define CONFIG_MESH_TOPOLOGY MESH_TOPO_TREE
+#endif
+#ifndef CONFIG_MESH_MAX_LAYER
+#define CONFIG_MESH_MAX_LAYER 6
+#endif
+#ifndef CONFIG_MESH_ID
+#define CONFIG_MESH_ID "00, 00, 00, 00, 00, 00"
+#endif
+#ifndef CONFIG_MESH_AP_AUTHMODE
+#define CONFIG_MESH_AP_AUTHMODE WIFI_AUTH_WPA2_PSK
+#endif
+#ifndef CONFIG_MESH_AP_CONNECTIONS
+#define CONFIG_MESH_AP_CONNECTIONS 6
+#endif
+#ifndef CONFIG_MESH_AP_PASSWD
+#define CONFIG_MESH_AP_PASSWD "MAP_PASSWD"
+#endif
+#ifndef CONFIG_MESH_CHANNEL
+#define CONFIG_MESH_CHANNEL 0
+#endif
+
+#ifndef CONFIG_MESH_ROUTER_SSID
+#define CONFIG_MESH_ROUTER_SSID "ROUTER_SSID"
+#endif
+
+#ifndef CONFIG_MESH_ROUTER_PASSWD
+#define CONFIG_MESH_ROUTER_PASSWD "ROUTER_PASSWD"
+#endif
+
+#ifndef CONFIG_MESH_ROUTE_TABLE_SIZE
+#define CONFIG_MESH_ROUTE_TABLE_SIZE 50
+#endif
+
+#define MESH_NETWORK_PAYLOAD_SIZE 1024U
+
+struct meshPacket
+{
+    enum otaMeshPacketType
+    {
+        APP_Data,            //data for application
+        OTA_Version_Request, //send own version in payload
+        OTA_Version_Response, //send own version in payload
+        OTA_Data,            //send image segment
+        OTA_ACK,             //ack image segment
+        OTA_Complete,         //signal end of image
+        OTA_Abort             //abort OTA process
+    } type;
+    uint8_t au8Payload[MESH_NETWORK_PAYLOAD_SIZE];
+    mesh_addr_t meshSenderAddr;
+};
+
+typedef struct meshPacket MESH_PACKET_t;
+
+extern bool bIsMeshConnected;
+extern int32_t i32MeshLayer;
+extern mesh_addr_t meshParentAddr;
+extern esp_netif_t* netif_sta;
+extern uint8_t u8ownMAC[6];
+extern void (*pOTAChildConnectHandle)(uint8_t* );
+extern void (*pChangeStateOfServerWorkerHandle)(bool );
+
+esp_err_t errMeshNetworkInitialize();
+esp_err_t errMeshNetworkInitializeWiFi();
+esp_err_t errMeshNetworkInitializeRouter(mesh_cfg_t* cfg);
+
+esp_err_t errMeshNetworkSetAppReceiveHandle(void (*pAppRxHandleTmp)(uint8_t * pu8Data, uint8_t* pu8Sender));
+esp_err_t errMeshNetworkSetChildConnectedHandle(void (*pChildConnectHandleTmp)(uint8_t * pu8Data));
+esp_err_t errMeshNetworkSetOTAMessageHandle(void (*pOTAMessageHandleTmp)(MESH_PACKET_t* puMeshPacket));
+
+esp_err_t errMeshNetworkSetOtaDataHandle(void (*pOtaDataHandleTmp)(MESH_PACKET_t* puMeshPacket));
+esp_err_t errMeshNetworkSetOtaAckHandle(void (*pOtaAckHandleTmp)(MESH_PACKET_t* puMeshPacket));
+esp_err_t errMeshNetworkSetOtaCompleteHandle(void (*pOtaCompleteHandleTmp)(MESH_PACKET_t* puMeshPacket));
+esp_err_t errMeshNetworkSetOtaAbortHandle(void (*pOtaAbortHandleTmp)(MESH_PACKET_t* puMeshPacket));
+
+esp_err_t errMeshNetworkSetChangeStateOfServerWorkerHandle(void (*pChangeStateOfServerWorkerHandleTmp)(bool bState));
+
+bool bCheckMACEquality(uint8_t* pu8aMAC,  uint8_t* pu8bMAC);
+void vGetOwnAddr(mesh_addr_t* pMeshOwnAddr);
+esp_err_t errGetParentNode(mesh_addr_t* pMeshParentAddr);
+esp_err_t errGetChildren(mesh_addr_t* pChildren, uint16_t* pu16ChildrenSize);
+bool bIsRootNode();
+bool bIsNodeNeighbour(mesh_addr_t* pNode);
+
+esp_err_t errStartReceiveTask();
+void vTaskReceiveMeshData(void *arg);
+void vMeshEventHandler(void *arg, esp_event_base_t event_base, int32_t i32EventID, void* vpEventData);
+void vIPEventHandler(void *arg, esp_event_base_t event_base, int32_t i32EventID, void *event_data);
+
+esp_err_t errSendMeshPacket(mesh_addr_t* pAddrDest, MESH_PACKET_t* pPacket);
+
+
+
+
+#endif /* H_MESH_NETWORK */
+

components/mesh_ota/test/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRC_DIRS "."
+                    INCLUDE_DIRS "."
+                    REQUIRES cmock mesh_ota)

components/mesh_ota/test/component.mk

@@ -0,0 +1,7 @@
+# This is the minimal test component makefile.
+#
+# The following line is needed to force the linker to include all the object
+# files into the application, even if the functions in these object files
+# are not referenced from outside (which is usually the case for unit tests).
+#
+COMPONENT_ADD_LDFLAGS = -Wl,--whole-archive -l$(COMPONENT_NAME) -Wl,--no-whole-archive

components/mesh_ota/test/test_image_hex.h

@@ -0,0 +1,171 @@
+#ifndef H_TEST_IMAGE_HEX
+#define H_TEST_IMAGE_HEX
+
+//with http response +  0.0.1
+char dataWithHttpRespone0_0_1[] = 
+{
+0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, 0x2e, 0x31, 0x20, 0x32, 0x30, 0x30, 0x20, 0x4f, 0x4b, 0xd, 0xa, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x3a, 0x20, 0x6e, 0x67, 0x69, 0x6e, 0x78, 0x2f, 0x31, 0x2e, 0x31, 0x34, 0x2e, 0x32, 0xd, 0xa, 0x44,
+0x61, 0x74, 0x65, 0x3a, 0x20, 0x54, 0x68, 0x75, 0x2c, 0x20, 0x30, 0x37, 0x20, 0x4a, 0x61, 0x6e, 0x20, 0x32, 0x30, 0x32, 0x31, 0x20, 0x31, 0x33, 0x3a, 0x34, 0x38, 0x3a, 0x32, 0x36, 0x20, 0x47, 0x4d, 0x54, 0xd, 0xa, 0x43, 0x6f, 0x6e, 0x74,
+0x65, 0x6e, 0x74, 0x2d, 0x54, 0x79, 0x70, 0x65, 0x3a, 0x20, 0x61, 0x70, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x6f, 0x63, 0x74, 0x65, 0x74, 0x2d, 0x73, 0x74, 0x72, 0x65, 0x61, 0x6d, 0xd, 0xa, 0x43, 0x6f, 0x6e, 0x74,
+0x65, 0x6e, 0x74, 0x2d, 0x4c, 0x65, 0x6e, 0x67, 0x74, 0x68, 0x3a, 0x20, 0x31, 0x31, 0x31, 0x34, 0x31, 0x30, 0x30, 0xd, 0xa, 0x4c, 0x61, 0x73, 0x74, 0x2d, 0x4d, 0x6f, 0x64, 0x69, 0x66, 0x69, 0x65, 0x64, 0x3a, 0x20, 0x53, 0x61, 0x74, 0x2c,
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+};
+
+//with http response +  999.999.999
+char dataWithHttpRespone999_999_999[] = 
+{
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+
+//with http response +  999.9.999
+char dataWithHttpRespone999_9_999[] = 
+{
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+};
+
+//with http response +  999.99.999
+char dataWithHttpRespone999_99_999[] = 
+{
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+};
+ 
+#endif /* H_TEST_IMAGE_HEX */

components/mesh_ota/test/test_mesh_ota.c

@@ -0,0 +1,223 @@
+#include <limits.h>
+#include "unity.h"
+
+#include "Mesh_OTA.h"
+#include "test_image_hex.h"
+
+// ### ### ###  distinguish newer image version ### ### ###
+
+TEST_CASE("Remote got patch", "[distinguish newer image version]")
+{
+    char versionLocal[] = "1.2.3";  //current running image
+    char versionRemote[] = "1.2.4"; //image from server
+    TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Remote got minor", "[distinguish newer image version]")
+{
+    char versionLocal[] = "1.2.3";  //current running image
+    char versionRemote[] = "1.3.3"; //image from server
+    TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Remote got major", "[distinguish newer image version]")
+{
+    char versionLocal[] = "1.2.3";  //current running image
+    char versionRemote[] = "2.2.3"; //image from server
+    TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Local got patch", "[distinguish newer image version]")
+{
+    char versionLocal[] = "1.2.4";  //current running image
+    char versionRemote[] = "1.2.3"; //image from server
+    TEST_ASSERT_FALSE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Local got minor", "[distinguish newer image version]")
+{
+    char versionLocal[] = "1.3.3";  //current running image
+    char versionRemote[] = "1.2.3"; //image from server
+    TEST_ASSERT_FALSE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Local got major", "[distinguish newer image version]")
+{
+    char versionLocal[] = "2.2.3";  //current running image
+    char versionRemote[] = "1.2.3"; //image from server
+    TEST_ASSERT_FALSE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Remote got alpha and patch", "[distinguish newer image version]")
+{
+    char versionLocal[] = "2.2.3";  //current running image
+    char versionRemote[] = "a2.2.4"; //image from server
+    TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+TEST_CASE("Remote got max", "[distinguish newer image version]")
+{
+    char versionLocal[] = "2.2.3";  //current running image
+    char versionRemote[] = "999.999.999"; //image from server
+    TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+}
+
+// ### ### ###  find start offset in firmware image ### ### ###
+
+TEST_CASE("with http response +  0.0.1", "[find start offset in firmware image]")
+{
+    uint32_t u32StartOffset;
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone0_0_1)/sizeof(dataWithHttpRespone0_0_1[0]);
+    esp_err_t err = errFindImageStart(dataWithHttpRespone0_0_1, &u32DataLenght, &u32StartOffset);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_EQUAL_INT(305, u32StartOffset);
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+TEST_CASE("without http response +  0.0.1", "[find start offset in firmware image]")
+{
+    uint32_t u32StartOffset;
+    uint32_t u32DataLenght = sizeof(dataWithoutHttpRespone0_0_1)/sizeof(dataWithoutHttpRespone0_0_1[0]);
+    esp_err_t err =  errFindImageStart(dataWithoutHttpRespone0_0_1, &u32DataLenght, &u32StartOffset);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_EQUAL_INT(0, u32StartOffset);
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+
+TEST_CASE("with http response +  999.999.999", "[find start offset in firmware image]")
+{
+    uint32_t u32StartOffset;
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone999_999_999)/sizeof(dataWithHttpRespone999_999_999[0]);
+    esp_err_t err = errFindImageStart(dataWithHttpRespone999_999_999, &u32DataLenght, &u32StartOffset);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_EQUAL_INT(305, u32StartOffset);
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+TEST_CASE("without http response +  999.999.999", "[find start offset in firmware image]")
+{
+    uint32_t u32StartOffset;
+    uint32_t u32DataLenght = sizeof(dataWithoutHttpRespone999_999_999)/sizeof(dataWithoutHttpRespone999_999_999[0]);
+    esp_err_t err = errFindImageStart(dataWithoutHttpRespone999_999_999, &u32DataLenght, &u32StartOffset);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_EQUAL_INT(0, u32StartOffset);
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+TEST_CASE("with http response +  999.9.999", "[find start offset in firmware image]")
+{
+    uint32_t u32StartOffset;
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone999_9_999)/sizeof(dataWithHttpRespone999_9_999[0]);
+    esp_err_t err = errFindImageStart(dataWithHttpRespone999_9_999, &u32DataLenght, &u32StartOffset);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_EQUAL_INT(302, u32StartOffset);
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+TEST_CASE("with http response +  999.99.999", "[find start offset in firmware image]")
+{
+    uint32_t u32StartOffset;
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone999_99_999)/sizeof(dataWithHttpRespone999_99_999[0]);
+    esp_err_t err = errFindImageStart(dataWithHttpRespone999_99_999, &u32DataLenght, &u32StartOffset);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_EQUAL_INT(299, u32StartOffset);
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+// ### ### ###  distinguish newer image version ### ### ###
+
+TEST_CASE("extract version 0.0.1", "[extract image version number]")
+{
+    char versionLocal[] = "0.0.0";  //current running image
+    char versionRemote[12];//image from server
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone0_0_1)/sizeof(dataWithHttpRespone0_0_1[0]);
+    esp_err_t err = errExtractVersionNumber(dataWithHttpRespone0_0_1, &u32DataLenght, versionRemote);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+TEST_CASE("extract version 999.999.999", "[extract image version number]")
+{
+    char versionLocal[] = "0.0.0";  //current running image
+    char versionRemote[12];//image from server
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone999_999_999)/sizeof(dataWithHttpRespone999_999_999[0]);
+    esp_err_t err = errExtractVersionNumber(dataWithHttpRespone999_999_999, &u32DataLenght, versionRemote);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_TRUE( bNewerVersion(versionLocal, versionRemote)  );
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+TEST_CASE("extract version 999.99.999", "[extract image version number]")
+{
+    char versionLocal[] = "999.100.999";  //current running image
+    char versionRemote[12];//image from server
+    uint32_t u32DataLenght = sizeof(dataWithHttpRespone999_99_999)/sizeof(dataWithHttpRespone999_99_999[0]);
+    esp_err_t err = errExtractVersionNumber(dataWithHttpRespone999_99_999, &u32DataLenght, versionRemote);
+    if(err == ESP_OK)
+    {
+        TEST_ASSERT_FALSE( bNewerVersion(versionLocal, versionRemote)  );
+    }
+    else
+    {
+        TEST_ASSERT_EQUAL_INT(ESP_OK, err);
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

main/Blinky_LED.c

@@ -0,0 +1,186 @@
+#include "Blinky_LED.h"
+
+static const char *LOG_TAG = "blinky_led";
+static bool bLEDisOn = false; //set led default off
+static mesh_addr_t addrParent;  //addr of parent node
+static mesh_addr_t childrenAddr[CONFIG_MESH_ROUTE_TABLE_SIZE]; //array of children attached to this node
+static uint16_t u16ChildrenSize; //number of children attached to this node
+xQueueHandle queueBlinkyLEDPackets; //handle for led action queue
+
+esp_err_t errBlinkyLEDInitialize()
+{
+    esp_err_t err = ESP_OK;
+    BaseType_t xReturned;
+
+    vGPIOInitialize();
+
+    //create queue to store led action created from BTN and mesh network events
+    queueBlinkyLEDPackets = xQueueCreate(5, sizeof(BLINKY_PACKET_t));
+    if (queueBlinkyLEDPackets == 0)  // Queue not created
+        {
+            ESP_LOGE(LOG_TAG, "Unable to create Queue for Application Packets");
+            err = ESP_FAIL;
+        }
+
+    //register the receiver handle in mesh network
+    ERROR_CHECK(errMeshNetworkSetAppReceiveHandle(rxHandle));
+
+    if(err == ESP_OK)
+        {
+            xReturned = xTaskCreate(vTaskReadUserInput, "vTaskReadUserInput", 4096, NULL, 5, NULL);
+            if(xReturned != pdPASS)
+                {
+                    err = ESP_FAIL;
+                }
+        }
+
+    if(err == ESP_OK)
+        {
+            xReturned = xTaskCreate(vTaskReceiveData, "vTaskReceiveData", 4096, NULL, 5, NULL);
+            if(xReturned != pdPASS)
+                {
+                    err = ESP_FAIL;
+                }
+        }
+    return err;
+}
+
+void vGPIOInitialize()
+{
+    gpio_config_t gpioConf;
+
+    //LED as Output
+    gpio_reset_pin(GPIO_LED);
+    gpio_set_direction(GPIO_LED, GPIO_MODE_OUTPUT);
+
+    //BTN as Input
+    gpioConf.intr_type = GPIO_INTR_DISABLE;
+    gpioConf.mode = GPIO_MODE_INPUT;
+    gpioConf.pin_bit_mask = GPIO_INPUT_PIN_SEL;
+    gpioConf.pull_down_en = 0;
+    gpioConf.pull_up_en = 1;
+    gpio_config(&gpioConf);
+}
+
+void rxHandle(uint8_t* pu8Data, uint8_t* pu8Sender)
+{
+    //send payload to app queue
+    BLINKY_PACKET_t bTmpPacket;
+    memcpy(&bTmpPacket, (uint8_t *)pu8Data, sizeof(BLINKY_PACKET_t));
+    memcpy(&bTmpPacket.meshSenderAddr, (uint8_t *)pu8Sender, 6); //copy MAC from sender into app packet
+    if (xQueueSend(queueBlinkyLEDPackets, &bTmpPacket, portMAX_DELAY) != pdPASS)
+        {
+            ESP_LOGE(LOG_TAG, "Unable to push packet from mesh into Queue");
+        }
+}
+
+void vTaskReadUserInput(void *arg)
+{
+    esp_err_t err = ESP_OK;
+    BLINKY_PACKET_t bTmpPacket;
+    MESH_PACKET_t meshPacket;
+
+    bTmpPacket.type = LED_OFF; //default off
+    meshPacket.type = APP_Data; //this is a app packet
+
+    while(true)
+        {
+            //check for BTN press
+            if(gpio_get_level(GPIO_BOOT_BTN) == 0)
+                {
+                    err = ESP_OK;
+
+                    if(bLEDisOn == false)
+                        {
+                            bTmpPacket.type = LED_ON;
+                        }
+                    else
+                        {
+                            bTmpPacket.type = LED_OFF;
+                        }
+
+                    //push led action into queue
+                    if (xQueueSend(queueBlinkyLEDPackets, &bTmpPacket, portMAX_DELAY) != pdPASS)
+                        {
+                            ESP_LOGE(LOG_TAG, "Unable to push packet into queue");
+                        }
+
+                    memcpy(meshPacket.au8Payload, &bTmpPacket, sizeof(BLINKY_PACKET_t));
+
+                    if(bIsRootNode() == false)
+                        {
+                            //this node is not root --> send led action to parent
+                            ERROR_CHECK(errGetParentNode(&addrParent));
+                            ERROR_CHECK(errSendMeshPacket(&addrParent, &meshPacket));
+                        }
+                    else
+                        {
+                            //this node is root --> send led action to children
+                            ERROR_CHECK(errGetChildren(childrenAddr, &u16ChildrenSize));
+
+                            for (uint16_t u16Index = 0; u16Index < u16ChildrenSize; u16Index++)
+                                {
+                                    ERROR_CHECK (errSendMeshPacket(&childrenAddr[u16Index], &meshPacket));
+                                }
+                        }
+                    vTaskDelay(200 / portTICK_PERIOD_MS);
+                }
+            vTaskDelay(50 / portTICK_PERIOD_MS);
+        }
+}
+
+void vTaskReceiveData(void *arg)
+{
+    esp_err_t err = ESP_OK;
+    MESH_PACKET_t meshPacket;
+    BLINKY_PACKET_t bTmpPacket;
+
+    bTmpPacket.type = LED_OFF; //default off
+    meshPacket.type = APP_Data; //this is a app packet
+
+    while (1)
+        {
+            if (xQueueReceive(queueBlinkyLEDPackets, &bTmpPacket, portMAX_DELAY) != pdTRUE)
+                {
+                    ESP_LOGE(LOG_TAG, "Unable to receive packet from Queue");
+                }
+            else
+                {
+                    err = ESP_OK;
+                    //Successfully RECEIVED the packet
+                    switch (bTmpPacket.type)
+                        {
+                        case LED_ON:
+                            bLEDisOn = true;
+                            gpio_set_level(GPIO_LED, 1); //switch on
+                            ESP_LOGI(LOG_TAG,"switch LED ON");
+                            break;
+
+                        case LED_OFF:
+                            bLEDisOn = false;
+                            gpio_set_level(GPIO_LED, 0); //switch off
+                            ESP_LOGI(LOG_TAG,"switch LED OFF");
+                            break;
+
+                        default:
+                            bLEDisOn = false;
+                            gpio_set_level(GPIO_LED, 0); //switch off
+                            ESP_LOGI(LOG_TAG,"switch LED OFF");
+                            break;
+                        }
+                }
+
+            ERROR_CHECK(errGetChildren(childrenAddr, &u16ChildrenSize)); //get all children attached to this node
+            memcpy(meshPacket.au8Payload, &bTmpPacket, sizeof(BLINKY_PACKET_t)); //copy led action in mesh packet payload
+
+            for (uint16_t u16Index = 0; u16Index < u16ChildrenSize; u16Index++)
+                {
+                    //loop through children
+                    if(bCheckMACEquality(bTmpPacket.meshSenderAddr.addr,  childrenAddr[u16Index].addr) == false) //exclude the sender node
+                        {
+                            ERROR_CHECK (errSendMeshPacket(&childrenAddr[u16Index], &meshPacket)); //send to child
+                        }
+                }
+            vTaskDelay(200 / portTICK_PERIOD_MS);
+        }
+}

main/Blinky_LED.h

@@ -0,0 +1,39 @@
+#ifndef H_BLINKY_LED
+#define H_BLINKY_LED
+
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_system.h"
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "driver/gpio.h"
+
+#include "Mesh_OTA.h"
+
+#define GPIO_BOOT_BTN   0 //GPIO0 (Boot BTN)
+#define GPIO_LED        2 //GPIO2 (internal blue LED in DevKit V1.0)
+
+#define GPIO_INPUT_PIN_SEL  (1ULL<<GPIO_BOOT_BTN)
+
+struct blinky_packet
+{
+    enum blinky_packet_type
+    {
+        LED_OFF,
+        LED_ON,
+    } type;
+    mesh_addr_t meshSenderAddr; //stores addr of sender of this packet
+};
+
+typedef struct blinky_packet BLINKY_PACKET_t;
+
+esp_err_t errBlinkyLEDInitialize();
+void vGPIOInitialize();
+void rxHandle(uint8_t* pu8Data, uint8_t* pu8Sender);
+void vTaskReadUserInput(void *arg);
+void vTaskReceiveData(void *arg);
+
+#endif /* H_BLINKY_LED */
+
+

main/CMakeLists.txt

@@ -1,2 +1,2 @@
-idf_component_register(SRCS "mesh_main.c"
+idf_component_register(SRCS "Blinky_LED.c" "Main.c"
                     INCLUDE_DIRS ".")

main/Kconfig.projbuild

@@ -1,4 +1,4 @@
-menu "Example Configuration"
+menu "Mesh OTA Configuration"
 
     choice
         bool "Mesh Topology"
@@ -105,6 +105,12 @@ menu "Example Configuration"
         default 0
         help
             mesh network channel.
+            
+    config MESH_ID
+        string "ID for mesh network"
+        default "00, 00, 00, 00, 00, 00"
+        help
+            Mesh network id like MAC addr.
 
     config MESH_ROUTER_SSID
         string "Router SSID"
@@ -124,22 +130,17 @@ menu "Example Configuration"
         help
             Authentication mode.
 
-        config WIFI_AUTH_OPEN
-            bool "WIFI_AUTH_OPEN"
-        config WIFI_AUTH_WPA_PSK
-            bool "WIFI_AUTH_WPA_PSK"
         config WIFI_AUTH_WPA2_PSK
             bool "WIFI_AUTH_WPA2_PSK"
-        config WIFI_AUTH_WPA_WPA2_PSK
-            bool "WIFI_AUTH_WPA_WPA2_PSK"
+        config WIFI_AUTH_WPA2_ENTERPRISE
+            bool "WIFI_AUTH_WPA2_ENTERPRISE"
     endchoice
 
     config MESH_AP_AUTHMODE
         int
-        default 0 if WIFI_AUTH_OPEN
-        default 2 if WIFI_AUTH_WPA_PSK
+
         default 3 if WIFI_AUTH_WPA2_PSK
-        default 4 if WIFI_AUTH_WPA_WPA2_PSK
+        default 5 if WIFI_AUTH_WPA2_ENTERPRISE
         help
             Mesh AP authentication mode.
 
@@ -162,4 +163,36 @@ menu "Example Configuration"
         default 50
         help
             The number of devices over the network(max: 300).
+            
+    config MESH_MESSAGE_SIZE
+        int "Mesh network messages size"
+        range 1 65536
+        default 1500
+        help
+            Length of messages deliveres by the mesh network.
+            
+    config OTA_HTTPS_SERVER_COMMON_NAME
+        string "Common name OTA server"
+        default "exmaple.com"
+        help
+           Fully Qualified Domain Name used in the certificate.
+           
+    config OTA_HTTPS_SERVER_PORT
+        string "Server port"
+        default "443"
+        help
+           HTTPS webserver port
+           
+    config OTA_HTTPS_URL
+        string "URL to ota image"
+        default "https://exmaple.com/theImage.bin"
+        help
+           Uniform Resource Locator to the image file
+           
+    config OTA_HTTPS_AUTH
+        string "HTTPS authentication"
+        default "base64(user:password)"
+        help
+           HTTPS basic auth using base64 decoded "user:password"
+           
 endmenu

main/Main.c

@@ -0,0 +1,37 @@
+
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_system.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_mesh.h"
+#include "esp_mesh_internal.h"
+#include "nvs_flash.h"
+#include "driver/gpio.h"
+#include "esp_ota_ops.h"
+#include "esp_partition.h"
+
+#include "Mesh_OTA.h"
+#include "Blinky_LED.h"
+
+static const char *LOG_TAG = "esp_main";
+
+void app_main(void)
+{
+    esp_err_t err = ESP_OK;
+    ESP_LOGI(LOG_TAG, "hardcoded: 0.0.1");
+
+    ESP_LOGI(LOG_TAG, "start mesh network");
+    err = errMeshNetworkInitialize();
+    ESP_ERROR_CHECK(err);
+
+    ESP_LOGI(LOG_TAG, "start ota");
+    err = errMeshOTAInitialize();
+    ESP_ERROR_CHECK(err);
+
+    ESP_LOGI(LOG_TAG, "start app");
+    err = errBlinkyLEDInitialize();
+    ESP_ERROR_CHECK(err);
+}
+
+

main/mesh_main.c

@@ -1,606 +0,0 @@
-
-#include <string.h>
-#include "esp_wifi.h"
-#include "esp_system.h"
-#include "esp_event.h"
-#include "esp_log.h"
-#include "esp_mesh.h"
-#include "esp_mesh_internal.h"
-#include "nvs_flash.h"
-#include "driver/gpio.h"
-#include "esp_ota_ops.h"
-#include "esp_partition.h"
-
-
-
-#define RX_SIZE          (1234)
-#define TX_SIZE          (1234)
-
-
-
-static const char *MESH_TAG = "mesh_main";
-static const uint8_t MESH_ID[6] = { 0x77, 0x77, 0x77, 0x77, 0x77, 0x77};
-static uint8_t tx_buf[TX_SIZE] = { 0, };
-static uint8_t rx_buf[RX_SIZE] = { 0, };
-static bool is_mesh_connected = false;
-static mesh_addr_t mesh_parent_addr;
-static uint8_t ownMAC[6];
-static int mesh_layer = -1;
-static esp_netif_t *netif_sta = NULL;
-
-struct ota_mesh_packet {
-    enum ota_mesh_packet_type {
-        APP_Version_Request,
-        APP_Version_Response,
-        OTA_Data,
-        OTA_ACK,
-        OTA_Complete
-    } type;
-
-    uint8_t au8Payload[1024];
-};
-
-
-
-/*******************************************************
- *                Function Declarations
- *******************************************************/
-
-esp_err_t esp_mesh_send_packet(mesh_addr_t* dest, struct ota_mesh_packet* packet);
-
-/*******************************************************
- *                Function Definitions
- *******************************************************/
-
-
-esp_err_t esp_mesh_ota_send(mesh_addr_t* dest)
-{
-    esp_err_t err = ESP_OK;
-
-    static uint32_t u32index;
-
-    const esp_partition_t * currentPartition = esp_ota_get_boot_partition();
-
-    if((*currentPartition).subtype == 0) {
-
-        int data_read = 0;
-
-        struct ota_mesh_packet packet;
-        packet.type=OTA_Data;
-
-        if(u32index == 1024)
-        {
-            //all data read
-            data_read = 0;
-            u32index = 0;
-        }
-        else
-        {
-            ESP_LOGI(MESH_TAG, "OTA-Data read: %i", u32index);
-            err =  esp_partition_read(currentPartition, (1024*u32index), packet.au8Payload, 1024 );
-            ESP_ERROR_CHECK(err);
-            data_read = 1024;
-            u32index++;
-        }
-
-        if (data_read > 0)
-        {
-            //send ota fragemnt to node
-            esp_mesh_send_packet(dest, &packet);
-        }
-
-        ESP_ERROR_CHECK(err);
-    }
-    else
-    {
-        ESP_LOGI(MESH_TAG, "Subtype: %d",  (*currentPartition).subtype);
-    }
-    return err;
-}
-
-esp_err_t esp_mesh_ota_receive(mesh_addr_t* dest, struct ota_mesh_packet* packet)
-{
-    esp_err_t err = ESP_OK;
-    static esp_ota_handle_t otaHandle;
-    static uint32_t u32index;
-
-    const esp_partition_t * currentPartition = esp_ota_get_boot_partition();
-    const esp_partition_t * otaPartition =  esp_ota_get_next_update_partition(currentPartition);
-
-    if(u32index == 0)
-    {
-        //first run
-
-        err = esp_ota_begin(otaPartition, OTA_SIZE_UNKNOWN, &otaHandle);
-        ESP_ERROR_CHECK(err);
-    }
-
-    ESP_LOGI(MESH_TAG, "OTA-Data write: %i", u32index);
-    err = esp_ota_write(otaHandle, packet->au8Payload, 1024);
-
-    if(err != ESP_OK)
-    {
-        ESP_LOGE(MESH_TAG, "OTA-Data write error: %i at %i", err, u32index);
-    }
-
-    ESP_ERROR_CHECK(err);
-
-
-
-    if(u32index >= 1023)
-    {
-        //ota update complete
-
-        ESP_LOGI(MESH_TAG, "OTA-Data complete arrived: %i", u32index);
-        err = esp_ota_end(otaHandle);
-        ESP_ERROR_CHECK(err);
-        esp_app_desc_t otaPartitionDesc;
-        err = esp_ota_get_partition_description(otaPartition, &otaPartitionDesc);
-        ESP_ERROR_CHECK(err);
-        ESP_LOGI(MESH_TAG, "otaPartition project_name: %s",  (otaPartitionDesc).project_name);
-
-        err = esp_ota_set_boot_partition(otaPartition);
-        ESP_ERROR_CHECK(err);
-
-        struct ota_mesh_packet retPacket;
-        retPacket.type=OTA_Complete;
-        ESP_ERROR_CHECK (esp_mesh_send_packet(dest, &retPacket)); //send back to parent
-
-        //check if this node has children --> Update them
-
-        esp_restart();
-    }
-
-    u32index++;
-
-
-    return err;
-}
-
-
-
-//returns true if MAC address is equal
-bool esp_mesh_check_MAC_Equality(uint8_t* aMAC,  uint8_t* bMAC)
-{
-    for (uint8_t index = 0; index < 6; index++)
-    {
-        if(aMAC[index] != bMAC[index]) {
-            return false;
-        }
-    }
-    return true;
-}
-
-esp_err_t esp_mesh_get_Children(mesh_addr_t children[], uint16_t* pu16ChildrenSize)
-{
-    *pu16ChildrenSize = 0;
-    mesh_addr_t route_table[CONFIG_MESH_ROUTE_TABLE_SIZE];
-    int route_table_size = 0;
-    esp_mesh_get_routing_table((mesh_addr_t *) &route_table, CONFIG_MESH_ROUTE_TABLE_SIZE * 6, &route_table_size);
-    for(uint16_t index = 0; index < esp_mesh_get_routing_table_size(); index++)
-    {
-        if(!    (esp_mesh_check_MAC_Equality(ownMAC, route_table[index].addr))  )
-        {
-            //child node
-            // ESP_LOGI(MESH_TAG, "adding Node: \"0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\" ", route_table[index].addr[0], route_table[index].addr[1], route_table[index].addr[2], route_table[index].addr[3], route_table[index].addr[4], route_table[index].addr[5]);
-            children[*pu16ChildrenSize] = route_table[index];
-            *pu16ChildrenSize = (*pu16ChildrenSize)+1;
-        }
-    }
-    return ESP_OK;
-}
-
-
-esp_err_t esp_mesh_send_packet(mesh_addr_t* dest, struct ota_mesh_packet* packet)
-{
-    esp_err_t err;
-    mesh_data_t data;
-    data.data = tx_buf;
-    data.size = sizeof(tx_buf);
-    data.proto = MESH_PROTO_BIN;
-    data.tos = MESH_TOS_P2P;
-
-    memcpy(tx_buf, (uint8_t *)packet, sizeof(struct ota_mesh_packet));
-
-    err = esp_mesh_send(dest, &data, MESH_DATA_P2P, NULL, 0);
-
-    return err;
-}
-
-void esp_mesh_p2p_rx_main(void *arg)
-{
-    esp_err_t err;
-    mesh_addr_t from;
-    mesh_data_t data;
-    int flag = 0;
-    data.data = rx_buf;
-    data.size = RX_SIZE;
-
-    while (true) {
-        data.size = RX_SIZE;
-        err = esp_mesh_recv(&from, &data, portMAX_DELAY, &flag, NULL, 0);
-        if (err != ESP_OK || !data.size) {
-            ESP_LOGE(MESH_TAG, "err:0x%x, size:%d", err, data.size);
-            continue;
-        }
-
-        struct ota_mesh_packet packet;
-        memcpy(&packet, (uint8_t *)rx_buf, sizeof(struct ota_mesh_packet));
-
-        switch (packet.type)
-        {
-        case APP_Version_Request:
-            ESP_LOGI(MESH_TAG, "recv: APP_Version_Request");
-            packet.type=APP_Version_Response;
-            packet.au8Payload[0] = 42; //TODO get current running version
-            ESP_ERROR_CHECK (esp_mesh_send_packet(&from, &packet)); //send back to parent
-            break;
-        case APP_Version_Response:
-            ESP_LOGI(MESH_TAG, "recv: APP_Version_Response - App Version %i: ", packet.au8Payload[0]);
-            //check if node is out-dated
-            esp_mesh_ota_send(&from);
-            break;
-        case OTA_Data:
-            ESP_LOGI(MESH_TAG, "recv: OTA_Data");
-            esp_mesh_ota_receive(&from, &packet);
-            packet.type=OTA_ACK;
-            ESP_ERROR_CHECK (esp_mesh_send_packet(&from, &packet)); //send back to parent
-            break;
-        case OTA_ACK:
-            ESP_LOGI(MESH_TAG, "recv: OTA_ACK");
-            esp_mesh_ota_send(&from);
-            break;
-        case OTA_Complete:
-            ESP_LOGI(MESH_TAG, "recv: OTA_Complete");
-            break;
-        default:
-            ESP_LOGE(MESH_TAG, "recv: something");
-            break;
-        }
-
-    } //end while
-    vTaskDelete(NULL);
-}
-
-
-esp_err_t esp_mesh_comm_p2p_start(void)
-{
-    static bool is_comm_p2p_started = false;
-    if (!is_comm_p2p_started) {
-        is_comm_p2p_started = true;
-        xTaskCreate(esp_mesh_p2p_rx_main, "MPRX", 7000, NULL, 5, NULL);
-    }
-    return ESP_OK;
-}
-
-void mesh_event_handler(void *arg, esp_event_base_t event_base,
-                        int32_t event_id, void *event_data)
-{
-    mesh_addr_t id = {0,};
-    static uint16_t last_layer = 0;
-
-    switch (event_id) {
-    case MESH_EVENT_STARTED: {
-        esp_mesh_get_id(&id);
-        ESP_LOGI(MESH_TAG, "<MESH_EVENT_MESH_STARTED>ID:"MACSTR"", MAC2STR(id.addr));
-is_mesh_connected = false;
-mesh_layer = esp_mesh_get_layer();
-}
-break;
-    case MESH_EVENT_STOPPED: {
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_STOPPED>");
-is_mesh_connected = false;
-mesh_layer = esp_mesh_get_layer();
-}
-break;
-    case MESH_EVENT_CHILD_CONNECTED: {
-mesh_event_child_connected_t *child_connected = (mesh_event_child_connected_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_CHILD_CONNECTED>aid:%d, "MACSTR"",
- child_connected->aid,
- MAC2STR(child_connected->mac));
-}
-break;
-    case MESH_EVENT_CHILD_DISCONNECTED: {
-mesh_event_child_disconnected_t *child_disconnected = (mesh_event_child_disconnected_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_CHILD_DISCONNECTED>aid:%d, "MACSTR"",
- child_disconnected->aid,
- MAC2STR(child_disconnected->mac));
-}
-break;
-    case MESH_EVENT_ROUTING_TABLE_ADD: {
-mesh_event_routing_table_change_t *routing_table = (mesh_event_routing_table_change_t *)event_data;
-ESP_LOGW(MESH_TAG, "<MESH_EVENT_ROUTING_TABLE_ADD>add %d, new:%d, layer:%d",
- routing_table->rt_size_change,
- routing_table->rt_size_new, mesh_layer);
-}
-break;
-    case MESH_EVENT_ROUTING_TABLE_REMOVE: {
-mesh_event_routing_table_change_t *routing_table = (mesh_event_routing_table_change_t *)event_data;
-ESP_LOGW(MESH_TAG, "<MESH_EVENT_ROUTING_TABLE_REMOVE>remove %d, new:%d, layer:%d",
- routing_table->rt_size_change,
- routing_table->rt_size_new, mesh_layer);
-}
-break;
-    case MESH_EVENT_NO_PARENT_FOUND: {
-mesh_event_no_parent_found_t *no_parent = (mesh_event_no_parent_found_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_NO_PARENT_FOUND>scan times:%d",
- no_parent->scan_times);
-}
-    /* TODO handler for the failure */
-break;
-    case MESH_EVENT_PARENT_CONNECTED: {
-mesh_event_connected_t *connected = (mesh_event_connected_t *)event_data;
-esp_mesh_get_id(&id);
-mesh_layer = connected->self_layer;
-memcpy(&mesh_parent_addr.addr, connected->connected.bssid, 6);
-ESP_LOGI(MESH_TAG,
- "<MESH_EVENT_PARENT_CONNECTED>layer:%d-->%d, parent:"MACSTR"%s, ID:"MACSTR", duty:%d",
- last_layer, mesh_layer, MAC2STR(mesh_parent_addr.addr),
- esp_mesh_is_root() ? "<ROOT>" :
- (mesh_layer == 2) ? "<layer2>" : "", MAC2STR(id.addr), connected->duty);
-last_layer = mesh_layer;
- //  mesh_connected_indicator(mesh_layer);
-is_mesh_connected = true;
-if (esp_mesh_is_root()) {
-esp_netif_dhcpc_start(netif_sta);
-}
-esp_mesh_comm_p2p_start();//start receiving
-}
-break;
-    case MESH_EVENT_PARENT_DISCONNECTED: {
-mesh_event_disconnected_t *disconnected = (mesh_event_disconnected_t *)event_data;
-ESP_LOGI(MESH_TAG,
- "<MESH_EVENT_PARENT_DISCONNECTED>reason:%d",
- disconnected->reason);
-is_mesh_connected = false;
-   // mesh_disconnected_indicator();
-mesh_layer = esp_mesh_get_layer();
-}
-break;
-    case MESH_EVENT_LAYER_CHANGE: {
-mesh_event_layer_change_t *layer_change = (mesh_event_layer_change_t *)event_data;
-mesh_layer = layer_change->new_layer;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_LAYER_CHANGE>layer:%d-->%d%s",
- last_layer, mesh_layer,
- esp_mesh_is_root() ? "<ROOT>" :
- (mesh_layer == 2) ? "<layer2>" : "");
-last_layer = mesh_layer;
-  //  mesh_connected_indicator(mesh_layer);
-}
-break;
-    case MESH_EVENT_ROOT_ADDRESS: {
-mesh_event_root_address_t *root_addr = (mesh_event_root_address_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_ADDRESS>root address:"MACSTR"",
- MAC2STR(root_addr->addr));
-}
-break;
-    case MESH_EVENT_VOTE_STARTED: {
-mesh_event_vote_started_t *vote_started = (mesh_event_vote_started_t *)event_data;
-ESP_LOGI(MESH_TAG,
- "<MESH_EVENT_VOTE_STARTED>attempts:%d, reason:%d, rc_addr:"MACSTR"",
- vote_started->attempts,
- vote_started->reason,
- MAC2STR(vote_started->rc_addr.addr));
-}
-break;
-    case MESH_EVENT_VOTE_STOPPED: {
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_VOTE_STOPPED>");
-break;
-}
-    case MESH_EVENT_ROOT_SWITCH_REQ: {
-mesh_event_root_switch_req_t *switch_req = (mesh_event_root_switch_req_t *)event_data;
-ESP_LOGI(MESH_TAG,
- "<MESH_EVENT_ROOT_SWITCH_REQ>reason:%d, rc_addr:"MACSTR"",
- switch_req->reason,
- MAC2STR( switch_req->rc_addr.addr));
-}
-break;
-    case MESH_EVENT_ROOT_SWITCH_ACK: {
-/* new root */
-mesh_layer = esp_mesh_get_layer();
-esp_mesh_get_parent_bssid(&mesh_parent_addr);
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_SWITCH_ACK>layer:%d, parent:"MACSTR"", mesh_layer, MAC2STR(mesh_parent_addr.addr));
-}
-break;
-    case MESH_EVENT_TODS_STATE: {
-mesh_event_toDS_state_t *toDs_state = (mesh_event_toDS_state_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_TODS_REACHABLE>state:%d", *toDs_state);
-}
-break;
-    case MESH_EVENT_ROOT_FIXED: {
-mesh_event_root_fixed_t *root_fixed = (mesh_event_root_fixed_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_FIXED>%s",
- root_fixed->is_fixed ? "fixed" : "not fixed");
-}
-break;
-    case MESH_EVENT_ROOT_ASKED_YIELD: {
-mesh_event_root_conflict_t *root_conflict = (mesh_event_root_conflict_t *)event_data;
-ESP_LOGI(MESH_TAG,
- "<MESH_EVENT_ROOT_ASKED_YIELD>"MACSTR", rssi:%d, capacity:%d",
- MAC2STR(root_conflict->addr),
- root_conflict->rssi,
- root_conflict->capacity);
-}
-break;
-    case MESH_EVENT_CHANNEL_SWITCH: {
-mesh_event_channel_switch_t *channel_switch = (mesh_event_channel_switch_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_CHANNEL_SWITCH>new channel:%d", channel_switch->channel);
-}
-break;
-    case MESH_EVENT_SCAN_DONE: {
-mesh_event_scan_done_t *scan_done = (mesh_event_scan_done_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_SCAN_DONE>number:%d",
- scan_done->number);
-}
-break;
-    case MESH_EVENT_NETWORK_STATE: {
-mesh_event_network_state_t *network_state = (mesh_event_network_state_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_NETWORK_STATE>is_rootless:%d",
- network_state->is_rootless);
-}
-break;
-    case MESH_EVENT_STOP_RECONNECTION: {
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_STOP_RECONNECTION>");
-}
-break;
-    case MESH_EVENT_FIND_NETWORK: {
-mesh_event_find_network_t *find_network = (mesh_event_find_network_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_FIND_NETWORK>new channel:%d, router BSSID:"MACSTR"",
- find_network->channel, MAC2STR(find_network->router_bssid));
-}
-break;
-    case MESH_EVENT_ROUTER_SWITCH: {
-mesh_event_router_switch_t *router_switch = (mesh_event_router_switch_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROUTER_SWITCH>new router:%s, channel:%d, "MACSTR"",
- router_switch->ssid, router_switch->channel, MAC2STR(router_switch->bssid));
-}
-break;
-    case MESH_EVENT_PS_PARENT_DUTY: {
-mesh_event_ps_duty_t *ps_duty = (mesh_event_ps_duty_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_PS_PARENT_DUTY>duty:%d", ps_duty->duty);
-}
-break;
-    case MESH_EVENT_PS_CHILD_DUTY: {
-mesh_event_ps_duty_t *ps_duty = (mesh_event_ps_duty_t *)event_data;
-ESP_LOGI(MESH_TAG, "<MESH_EVENT_PS_CHILD_DUTY>cidx:%d, "MACSTR", duty:%d", ps_duty->child_connected.aid-1,
-MAC2STR(ps_duty->child_connected.mac), ps_duty->duty);
-}
-break;
-    default:
-        ESP_LOGI(MESH_TAG, "unknown id:%d", event_id);
-        break;
-    }
-}
-
-void ip_event_handler(void *arg, esp_event_base_t event_base,
-                      int32_t event_id, void *event_data)
-{
-    ip_event_got_ip_t *event = (ip_event_got_ip_t *) event_data;
-    ESP_LOGI(MESH_TAG, "<IP_EVENT_STA_GOT_IP>IP:" IPSTR, IP2STR(&event->ip_info.ip));
-
-}
-
-void app_main(void)
-{
-/*
-    esp_err_t err;
-
-    err = nvs_flash_erase();
-
-    if(err != ESP_OK){
-        ESP_LOGI(MESH_TAG, "Error: %x", err);
-        while(1){
-
-        }
-    }
-    */
-
-    ESP_ERROR_CHECK(nvs_flash_init());
-
-    ESP_LOGI(MESH_TAG, "Hello World");
-    const esp_partition_t * currentPartition = esp_ota_get_boot_partition();
-    ESP_LOGI(MESH_TAG, "Type: %d",  (*currentPartition).subtype);
-    ESP_LOGI(MESH_TAG, "Start address: %d",  (*currentPartition).address);
-    ESP_LOGI(MESH_TAG, "Size: %d",  (*currentPartition).size); //passt
-    ESP_LOGI(MESH_TAG, "Encrypted: %d",  (*currentPartition).encrypted);
-
-    /*  tcpip initialization */
-    ESP_ERROR_CHECK(esp_netif_init());
-
-    /*  event initialization */
-    ESP_ERROR_CHECK(esp_event_loop_create_default());
-
-    /*  create network interfaces for mesh (only station instance saved for further manipulation, soft AP instance ignored */
-    ESP_ERROR_CHECK(esp_netif_create_default_wifi_mesh_netifs(&netif_sta, NULL));
-
-    /*  wifi initialization */
-    wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT();
-    ESP_ERROR_CHECK(esp_wifi_init(&config));
-    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &ip_event_handler, NULL));
-    ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_FLASH));
-    ESP_ERROR_CHECK(esp_wifi_start());
-
-    /*  mesh initialization */
-    ESP_ERROR_CHECK(esp_mesh_init());
-    ESP_ERROR_CHECK(esp_event_handler_register(MESH_EVENT, ESP_EVENT_ANY_ID, &mesh_event_handler, NULL));
-
-    /*  set mesh topology */
-    ESP_ERROR_CHECK(esp_mesh_set_topology(CONFIG_MESH_TOPOLOGY));
-
-    /*  set mesh max layer according to the topology */
-    ESP_ERROR_CHECK(esp_mesh_set_max_layer(CONFIG_MESH_MAX_LAYER));
-    ESP_ERROR_CHECK(esp_mesh_set_vote_percentage(1));
-    ESP_ERROR_CHECK(esp_mesh_set_xon_qsize(128));
-
-    /* Disable mesh PS function */
-    ESP_ERROR_CHECK(esp_mesh_disable_ps());
-    ESP_ERROR_CHECK(esp_mesh_set_ap_assoc_expire(10));
-
-    mesh_cfg_t cfg = MESH_INIT_CONFIG_DEFAULT();
-
-    /* mesh ID */
-    memcpy((uint8_t *) &cfg.mesh_id, MESH_ID, 6);
-
-    /* router */
-    cfg.channel = CONFIG_MESH_CHANNEL;
-    cfg.router.ssid_len = strlen(CONFIG_MESH_ROUTER_SSID);
-    memcpy((uint8_t *) &cfg.router.ssid, CONFIG_MESH_ROUTER_SSID, cfg.router.ssid_len);
-    memcpy((uint8_t *) &cfg.router.password, CONFIG_MESH_ROUTER_PASSWD,
-           strlen(CONFIG_MESH_ROUTER_PASSWD));
-
-    /* mesh softAP */
-    ESP_ERROR_CHECK(esp_mesh_set_ap_authmode(CONFIG_MESH_AP_AUTHMODE));
-    cfg.mesh_ap.max_connection = CONFIG_MESH_AP_CONNECTIONS;
-    memcpy((uint8_t *) &cfg.mesh_ap.password, CONFIG_MESH_AP_PASSWD,
-           strlen(CONFIG_MESH_AP_PASSWD));
-    ESP_ERROR_CHECK(esp_mesh_set_config(&cfg));
-
-    ESP_ERROR_CHECK(esp_base_mac_addr_get(ownMAC));
-
-    ESP_LOGI(MESH_TAG, "Own MAC: \"0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\" ", ownMAC[0], ownMAC[1], ownMAC[2], ownMAC[3], ownMAC[4], ownMAC[5]);
-
-    /* mesh start */
-    ESP_ERROR_CHECK(esp_mesh_start());
-
-    ESP_LOGI(MESH_TAG, "mesh starts successfully, heap:%d, %s<%d>%s, ps:%d\n",  esp_get_minimum_free_heap_size(),
-             esp_mesh_is_root_fixed() ? "root fixed" : "root not fixed",
-             esp_mesh_get_topology(), esp_mesh_get_topology() ? "(chain)":"(tree)", esp_mesh_is_ps_enabled());
-
-
-/* START OTA MESH */
-
-    //if (esp_mesh_is_root()) {
-     ESP_LOGI(MESH_TAG, "ROOT NODE");
-     //https ota
-
-   // while(1){
-    for(;;) {
-            if(gpio_get_level(0) == 0){
-                break;
-            }
-            vTaskDelay(1000 / portTICK_PERIOD_MS);
-    }
-
-       mesh_addr_t children[CONFIG_MESH_ROUTE_TABLE_SIZE];
-       uint16_t u16ChildrenSize; 
-       esp_mesh_get_Children(children, &u16ChildrenSize);
-
-    ESP_LOGI(MESH_TAG, "ChildrenSize: %i", u16ChildrenSize);
-
-    
-   struct ota_mesh_packet packet;
-
-   packet.type=APP_Version_Request;
-   //packet.au8Payload[0] = 42;
-
-    for (uint16_t i = 0; i < u16ChildrenSize; i++)
-    {
-      ESP_ERROR_CHECK (esp_mesh_send_packet(&children[i], &packet));
-    }
-    
-
-
-   // }//end while 1
-    //} // end root node
-
-}

partitions.csv

@@ -3,6 +3,5 @@
 nvs,      data, nvs,     ,        0x4000,
 otadata,  data, ota,     ,        0x2000,
 phy_init, data, phy,     ,        0x1000,
-factory,  app,  factory, ,        1M,
-ota_0,    app,  ota_0,   ,        1M,
-ota_1,    app,  ota_1,   ,        1M, 
+ota_0,    app,  ota_0,   ,        1500K,
+ota_1,    app,  ota_1,   ,        1500K, 

sdkconfig

@@ -31,7 +31,8 @@ CONFIG_APP_BUILD_USE_FLASH_SECTIONS=y
 CONFIG_APP_COMPILE_TIME_DATE=y
 # CONFIG_APP_EXCLUDE_PROJECT_VER_VAR is not set
 # CONFIG_APP_EXCLUDE_PROJECT_NAME_VAR is not set
-# CONFIG_APP_PROJECT_VER_FROM_CONFIG is not set
+CONFIG_APP_PROJECT_VER_FROM_CONFIG=y
+CONFIG_APP_PROJECT_VER="0.0.1"
 CONFIG_APP_RETRIEVE_LEN_ELF_SHA=16
 # end of Application manager
 
@@ -66,8 +67,16 @@ CONFIG_BOOTLOADER_RESERVE_RTC_SIZE=0
 #
 # Security features
 #
-# CONFIG_SECURE_SIGNED_APPS_NO_SECURE_BOOT is not set
+CONFIG_SECURE_SIGNED_ON_BOOT=y
+CONFIG_SECURE_SIGNED_ON_UPDATE=y
+CONFIG_SECURE_SIGNED_APPS=y
+CONFIG_SECURE_SIGNED_APPS_NO_SECURE_BOOT=y
+CONFIG_SECURE_SIGNED_APPS_ECDSA_SCHEME=y
+CONFIG_SECURE_SIGNED_ON_BOOT_NO_SECURE_BOOT=y
+CONFIG_SECURE_SIGNED_ON_UPDATE_NO_SECURE_BOOT=y
 # CONFIG_SECURE_BOOT is not set
+CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES=y
+CONFIG_SECURE_BOOT_SIGNING_KEY="secure_boot_signing_key.pem"
 # CONFIG_SECURE_FLASH_ENC_ENABLED is not set
 # end of Security features
 
@@ -119,12 +128,12 @@ CONFIG_ESPTOOLPY_MONITOR_BAUD=115200
 CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
 CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
-CONFIG_PARTITION_TABLE_OFFSET=0x8000
+CONFIG_PARTITION_TABLE_OFFSET=0x10000
 CONFIG_PARTITION_TABLE_MD5=y
 # end of Partition Table
 
 #
-# Example Configuration
+# Mesh OTA Configuration
 #
 CONFIG_MESH_TOPO_TREE=y
 # CONFIG_MESH_TOPO_CHAIN is not set
@@ -141,17 +150,21 @@ CONFIG_MESH_PS_NETWORK_DUTY_APPLIED_ENTIRE=y
 CONFIG_MESH_PS_NWK_DUTY_RULE=0
 CONFIG_MESH_MAX_LAYER=6
 CONFIG_MESH_CHANNEL=13
-CONFIG_MESH_ROUTER_SSID="nicht verbunden"
-CONFIG_MESH_ROUTER_PASSWD="flamingo"
-# CONFIG_WIFI_AUTH_OPEN is not set
-# CONFIG_WIFI_AUTH_WPA_PSK is not set
+CONFIG_MESH_ID="00, 00, 00, 00, 00, 00"
+CONFIG_MESH_ROUTER_SSID="labNet"
+CONFIG_MESH_ROUTER_PASSWD="12345678"
 CONFIG_WIFI_AUTH_WPA2_PSK=y
-# CONFIG_WIFI_AUTH_WPA_WPA2_PSK is not set
+# CONFIG_WIFI_AUTH_WPA2_ENTERPRISE is not set
 CONFIG_MESH_AP_AUTHMODE=3
-CONFIG_MESH_AP_PASSWD="MAP_PASSWD"
+CONFIG_MESH_AP_PASSWD="qaws1234"
 CONFIG_MESH_AP_CONNECTIONS=6
 CONFIG_MESH_ROUTE_TABLE_SIZE=50
-# end of Example Configuration
+CONFIG_MESH_MESSAGE_SIZE=1234
+CONFIG_OTA_HTTPS_SERVER_COMMON_NAME="ota.hendrikschutter.com"
+CONFIG_OTA_HTTPS_SERVER_PORT="443"
+CONFIG_OTA_HTTPS_URL="https://ota.hendrikschutter.com/mesh_ota.bin"
+CONFIG_OTA_HTTPS_AUTH="b3RhOnB3"
+# end of Mesh OTA Configuration
 
 #
 # Compiler options
@@ -351,6 +364,7 @@ CONFIG_ESP_CONSOLE_UART_DEFAULT=y
 # CONFIG_ESP_CONSOLE_UART_CUSTOM is not set
 # CONFIG_ESP_CONSOLE_NONE is not set
 CONFIG_ESP_CONSOLE_UART=y
+CONFIG_ESP_CONSOLE_MULTIPLE_UART=y
 CONFIG_ESP_CONSOLE_UART_NUM=0
 CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
 CONFIG_ESP_INT_WDT=y
@@ -594,7 +608,8 @@ CONFIG_FREERTOS_IDLE_TASK_STACKSIZE=2304
 CONFIG_FREERTOS_ISR_STACKSIZE=1536
 # CONFIG_FREERTOS_LEGACY_HOOKS is not set
 CONFIG_FREERTOS_MAX_TASK_NAME_LEN=16
-# CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION is not set
+CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION=y
+# CONFIG_FREERTOS_ENABLE_STATIC_TASK_CLEAN_UP is not set
 CONFIG_FREERTOS_TIMER_TASK_PRIORITY=1
 CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=2048
 CONFIG_FREERTOS_TIMER_QUEUE_LENGTH=10
@@ -691,7 +706,6 @@ CONFIG_LWIP_LOOPBACK_MAX_PBUFS=8
 #
 # TCP
 #
-CONFIG_LWIP_TCP_ISN_HOOK=y
 CONFIG_LWIP_MAX_ACTIVE_TCP=16
 CONFIG_LWIP_MAX_LISTENING_TCP=16
 CONFIG_LWIP_TCP_HIGH_SPEED_RETRANSMISSION=y
@@ -719,6 +733,14 @@ CONFIG_LWIP_MAX_UDP_PCBS=16
 CONFIG_LWIP_UDP_RECVMBOX_SIZE=6
 # end of UDP
 
+#
+# Checksums
+#
+# CONFIG_LWIP_CHECKSUM_CHECK_IP is not set
+# CONFIG_LWIP_CHECKSUM_CHECK_UDP is not set
+CONFIG_LWIP_CHECKSUM_CHECK_ICMP=y
+# end of Checksums
+
 CONFIG_LWIP_TCPIP_TASK_STACK_SIZE=3072
 CONFIG_LWIP_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
 # CONFIG_LWIP_TCPIP_TASK_AFFINITY_CPU0 is not set
@@ -751,6 +773,20 @@ CONFIG_LWIP_SNTP_UPDATE_DELAY=3600000
 
 CONFIG_LWIP_ESP_LWIP_ASSERT=y
 
+#
+# Hooks
+#
+# CONFIG_LWIP_HOOK_TCP_ISN_NONE is not set
+CONFIG_LWIP_HOOK_TCP_ISN_DEFAULT=y
+# CONFIG_LWIP_HOOK_TCP_ISN_CUSTOM is not set
+CONFIG_LWIP_HOOK_IP6_ROUTE_NONE=y
+# CONFIG_LWIP_HOOK_IP6_ROUTE_DEFAULT is not set
+# CONFIG_LWIP_HOOK_IP6_ROUTE_CUSTOM is not set
+CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_NONE=y
+# CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT is not set
+# CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_CUSTOM is not set
+# end of Hooks
+
 #
 # Debug
 #
@@ -761,8 +797,10 @@ CONFIG_LWIP_ESP_LWIP_ASSERT=y
 # CONFIG_LWIP_SOCKETS_DEBUG is not set
 # CONFIG_LWIP_IP_DEBUG is not set
 # CONFIG_LWIP_ICMP_DEBUG is not set
+# CONFIG_LWIP_DHCP_DEBUG is not set
 # CONFIG_LWIP_IP6_DEBUG is not set
 # CONFIG_LWIP_ICMP6_DEBUG is not set
+# CONFIG_LWIP_TCP_DEBUG is not set
 # end of Debug
 # end of LWIP
 
@@ -1026,7 +1064,7 @@ CONFIG_WS_BUFFER_SIZE=1024
 #
 CONFIG_UNITY_ENABLE_FLOAT=y
 CONFIG_UNITY_ENABLE_DOUBLE=y
-# CONFIG_UNITY_ENABLE_COLOR is not set
+CONFIG_UNITY_ENABLE_COLOR=y
 CONFIG_UNITY_ENABLE_IDF_TEST_RUNNER=y
 # CONFIG_UNITY_ENABLE_FIXTURE is not set
 # CONFIG_UNITY_ENABLE_BACKTRACE_ON_FAIL is not set
@@ -1071,6 +1109,7 @@ CONFIG_WPA_MBEDTLS_CRYPTO=y
 # CONFIG_WPA_DEBUG_PRINT is not set
 # CONFIG_WPA_TESTING_OPTIONS is not set
 # CONFIG_WPA_WPS_WARS is not set
+# CONFIG_WPA_11KV_SUPPORT is not set
 # end of Supplicant
 # end of Component config
 
@@ -1193,7 +1232,7 @@ CONFIG_MB_EVENT_QUEUE_TIMEOUT=20
 CONFIG_MB_TIMER_PORT_ENABLED=y
 CONFIG_MB_TIMER_GROUP=0
 CONFIG_MB_TIMER_INDEX=0
-# CONFIG_SUPPORT_STATIC_ALLOCATION is not set
+# CONFIG_ENABLE_STATIC_TASK_CLEAN_UP_HOOK is not set
 CONFIG_TIMER_TASK_PRIORITY=1
 CONFIG_TIMER_TASK_STACK_DEPTH=2048
 CONFIG_TIMER_QUEUE_LENGTH=10

secure_boot_signing_key.pem

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIPADEvh72EIFEGixpoyTcMq6k3TdS5vYytoCd/aFdcOUoAoGCCqGSM49
+AwEHoUQDQgAE3LyvSuovRT0+O9V8fcjvdHT1vaS2RRs6Zh7RKd3LemhOR+ZZ7KmE
+7QZiCmbVxMsano1h8rJG0m4PSv/eQ03K8A==
+-----END EC PRIVATE KEY-----

style_code.sh

@@ -0,0 +1,15 @@
+#! /bin/bash
+
+cd main
+astyle --style=gnu *.c
+astyle --style=gnu *.h
+
+cd ..
+
+cd components/mesh_ota
+astyle --style=gnu *.c
+cd include
+astyle --style=gnu *.h
+
+
+

test/CMakeLists.txt

@@ -0,0 +1,16 @@
+# This is the project CMakeLists.txt file for the test subproject
+cmake_minimum_required(VERSION 3.5)
+
+# Include the components directory of the main application:
+#
+set(EXTRA_COMPONENT_DIRS "../components")
+
+# Set the components to include the tests for.
+# This can be overriden from CMake cache:
+# - when invoking CMake directly: cmake -D TEST_COMPONENTS="xxxxx" ..
+# - when using idf.py: idf.py -T xxxxx build
+#
+set(TEST_COMPONENTS "mesh_ota" CACHE STRING "List of components to test")
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(unit_test_mesh_ota)

test/Makefile

@@ -0,0 +1,17 @@
+#
+# This is a project Makefile for the test subproject.
+#
+
+PROJECT_NAME := unit_test_mesh_ota
+
+# Include the components directory of the main application:
+#
+EXTRA_COMPONENT_DIRS := $(realpath ../components)
+
+# Set the components to include the tests for.
+# This can be overriden from the command line
+# (e.g. 'make TEST_COMPONENTS=xxxx flash monitor')
+#
+TEST_COMPONENTS ?= mesh_ota
+
+include $(IDF_PATH)/make/project.mk

test/main/CMakeLists.txt

@@ -0,0 +1,2 @@
+idf_component_register(SRCS "unit_test_mesh_ota.c"
+                    INCLUDE_DIRS ".")

test/main/unit_test_mesh_ota.c

@@ -0,0 +1,58 @@
+/* Example test application for testable component.
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include "unity.h"
+
+static void print_banner(const char* text);
+
+void app_main(void)
+{
+    /* These are the different ways of running registered tests.
+     * In practice, only one of them is usually needed.
+     *
+     * UNITY_BEGIN() and UNITY_END() calls tell Unity to print a summary
+     * (number of tests executed/failed/ignored) of tests executed between these calls.
+     */
+    
+    /*
+    print_banner("Executing one test by its name");
+    UNITY_BEGIN();
+    unity_run_test_by_name("Mean of an empty array is zero");
+    UNITY_END();
+
+    print_banner("Running tests with [mean] tag");
+    UNITY_BEGIN();
+    unity_run_tests_by_tag("[mean]", false);
+    UNITY_END();
+
+    print_banner("Running tests without [fails] tag");
+    UNITY_BEGIN();
+    unity_run_tests_by_tag("[fails]", true);
+    UNITY_END();
+*/
+    
+    
+    print_banner("Running all the registered tests");
+    UNITY_BEGIN();
+    unity_run_all_tests();
+    UNITY_END();
+
+    print_banner("Starting interactive test menu");
+    /* This function will not return, and will be busy waiting for UART input.
+     * Make sure that task watchdog is disabled if you use this function.
+     */
+    unity_run_menu();
+}
+
+static void print_banner(const char* text)
+{
+    printf("\n#### %s #####\n\n", text);
+}

test/sdkconfig

@@ -2,6 +2,7 @@
 # Automatically generated file. DO NOT EDIT.
 # Espressif IoT Development Framework (ESP-IDF) Project Configuration
 #
+CONFIG_IDF_CMAKE=y
 CONFIG_IDF_TARGET_ARCH_XTENSA=y
 CONFIG_IDF_TARGET="esp32"
 CONFIG_IDF_TARGET_ESP32=y
@@ -11,8 +12,6 @@ CONFIG_IDF_FIRMWARE_CHIP_ID=0x0000
 # SDK tool configuration
 #
 CONFIG_SDK_TOOLPREFIX="xtensa-esp32-elf-"
-CONFIG_SDK_PYTHON="python"
-CONFIG_SDK_MAKE_WARN_UNDEFINED_VARIABLES=y
 # CONFIG_SDK_TOOLCHAIN_SUPPORTS_TIME_WIDE_64_BITS is not set
 # end of SDK tool configuration
 
@@ -75,15 +74,7 @@ CONFIG_BOOTLOADER_RESERVE_RTC_SIZE=0
 #
 # Serial flasher config
 #
-CONFIG_ESPTOOLPY_PORT="/dev/ttyUSB0"
-CONFIG_ESPTOOLPY_BAUD_115200B=y
-# CONFIG_ESPTOOLPY_BAUD_230400B is not set
-# CONFIG_ESPTOOLPY_BAUD_921600B is not set
-# CONFIG_ESPTOOLPY_BAUD_2MB is not set
-# CONFIG_ESPTOOLPY_BAUD_OTHER is not set
 CONFIG_ESPTOOLPY_BAUD_OTHER_VAL=115200
-CONFIG_ESPTOOLPY_BAUD=115200
-CONFIG_ESPTOOLPY_COMPRESSED=y
 # CONFIG_ESPTOOLPY_NO_STUB is not set
 # CONFIG_ESPTOOLPY_FLASHMODE_QIO is not set
 # CONFIG_ESPTOOLPY_FLASHMODE_QOUT is not set
@@ -96,11 +87,11 @@ CONFIG_ESPTOOLPY_FLASHFREQ_40M=y
 # CONFIG_ESPTOOLPY_FLASHFREQ_20M is not set
 CONFIG_ESPTOOLPY_FLASHFREQ="40m"
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
-# CONFIG_ESPTOOLPY_FLASHSIZE_2MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+CONFIG_ESPTOOLPY_FLASHSIZE_2MB=y
+# CONFIG_ESPTOOLPY_FLASHSIZE_4MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_8MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
+CONFIG_ESPTOOLPY_FLASHSIZE="2MB"
 CONFIG_ESPTOOLPY_FLASHSIZE_DETECT=y
 CONFIG_ESPTOOLPY_BEFORE_RESET=y
 # CONFIG_ESPTOOLPY_BEFORE_NORESET is not set
@@ -120,36 +111,6 @@ CONFIG_ESPTOOLPY_MONITOR_BAUD_OTHER_VAL=115200
 CONFIG_ESPTOOLPY_MONITOR_BAUD=115200
 # end of Serial flasher config
 
-#
-# Example Configuration
-#
-CONFIG_MESH_TOPO_TREE=y
-# CONFIG_MESH_TOPO_CHAIN is not set
-CONFIG_MESH_TOPOLOGY=0
-CONFIG_MESH_ENABLE_PS=y
-CONFIG_MESH_PS_DEV_DUTY_TYPE_REQUEST=y
-# CONFIG_MESH_PS_DEV_DUTY_TYPE_DEMAND is not set
-CONFIG_MESH_PS_DEV_DUTY_TYPE=1
-CONFIG_MESH_PS_DEV_DUTY=12
-CONFIG_MESH_PS_NWK_DUTY=12
-CONFIG_MESH_PS_NWK_DUTY_DURATION=-1
-CONFIG_MESH_PS_NETWORK_DUTY_APPLIED_ENTIRE=y
-# CONFIG_MESH_PS_NETWORK_DUTY_APPLIED_UPLINK is not set
-CONFIG_MESH_PS_NWK_DUTY_RULE=0
-CONFIG_MESH_MAX_LAYER=6
-CONFIG_MESH_CHANNEL=13
-CONFIG_MESH_ROUTER_SSID="nicht verbunden"
-CONFIG_MESH_ROUTER_PASSWD="flamingo"
-# CONFIG_WIFI_AUTH_OPEN is not set
-# CONFIG_WIFI_AUTH_WPA_PSK is not set
-CONFIG_WIFI_AUTH_WPA2_PSK=y
-# CONFIG_WIFI_AUTH_WPA_WPA2_PSK is not set
-CONFIG_MESH_AP_AUTHMODE=3
-CONFIG_MESH_AP_PASSWD="MAP_PASSWD"
-CONFIG_MESH_AP_CONNECTIONS=6
-CONFIG_MESH_ROUTE_TABLE_SIZE=50
-# end of Example Configuration
-
 #
 # Partition Table
 #
@@ -338,36 +299,6 @@ CONFIG_ESP32_XTAL_FREQ=40
 CONFIG_ESP32_DPORT_DIS_INTERRUPT_LVL=5
 # end of ESP32-specific
 
-#
-# Memory protection
-#
-CONFIG_ESP32S2_MEMPROT_FEATURE=y
-CONFIG_ESP32S2_MEMPROT_FEATURE_LOCK=y
-# end of Memory protection
-
-#
-# Cache config
-#
-# end of Cache config
-
-CONFIG_ESP32S2_TRACEMEM_RESERVE_DRAM=0x0
-CONFIG_ESP32S2_ULP_COPROC_RESERVE_MEM=0
-CONFIG_ESP32S2_DEBUG_OCDAWARE=y
-CONFIG_ESP32S2_BROWNOUT_DET=y
-CONFIG_ESP32S2_ALLOW_RTC_FAST_MEM_AS_HEAP=y
-
-#
-# Cache config
-#
-# end of Cache config
-
-CONFIG_ESP32S3_TRACEMEM_RESERVE_DRAM=0x0
-CONFIG_ESP_MAC_ADDR_UNIVERSE_BT_OFFSET=2
-CONFIG_ESP32S3_ULP_COPROC_RESERVE_MEM=0
-CONFIG_ESP32S3_DEBUG_OCDAWARE=y
-CONFIG_ESP32S3_BROWNOUT_DET=y
-CONFIG_ESP32S3_ALLOW_RTC_FAST_MEM_AS_HEAP=y
-
 #
 # ADC-Calibration
 #
@@ -390,20 +321,18 @@ CONFIG_ESP_CONSOLE_UART_DEFAULT=y
 # CONFIG_ESP_CONSOLE_UART_CUSTOM is not set
 # CONFIG_ESP_CONSOLE_NONE is not set
 CONFIG_ESP_CONSOLE_UART=y
+CONFIG_ESP_CONSOLE_MULTIPLE_UART=y
 CONFIG_ESP_CONSOLE_UART_NUM=0
 CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
 CONFIG_ESP_INT_WDT=y
 CONFIG_ESP_INT_WDT_TIMEOUT_MS=300
 CONFIG_ESP_INT_WDT_CHECK_CPU1=y
-CONFIG_ESP_TASK_WDT=y
-# CONFIG_ESP_TASK_WDT_PANIC is not set
-CONFIG_ESP_TASK_WDT_TIMEOUT_S=5
-CONFIG_ESP_TASK_WDT_CHECK_IDLE_TASK_CPU0=y
-CONFIG_ESP_TASK_WDT_CHECK_IDLE_TASK_CPU1=y
+# CONFIG_ESP_TASK_WDT is not set
 # CONFIG_ESP_PANIC_HANDLER_IRAM is not set
 CONFIG_ESP_MAC_ADDR_UNIVERSE_WIFI_STA=y
 CONFIG_ESP_MAC_ADDR_UNIVERSE_WIFI_AP=y
 CONFIG_ESP_MAC_ADDR_UNIVERSE_BT=y
+CONFIG_ESP_MAC_ADDR_UNIVERSE_BT_OFFSET=2
 CONFIG_ESP_MAC_ADDR_UNIVERSE_ETH=y
 # end of Common ESP-related
 
@@ -632,7 +561,8 @@ CONFIG_FREERTOS_IDLE_TASK_STACKSIZE=2304
 CONFIG_FREERTOS_ISR_STACKSIZE=1536
 # CONFIG_FREERTOS_LEGACY_HOOKS is not set
 CONFIG_FREERTOS_MAX_TASK_NAME_LEN=16
-# CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION is not set
+CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION=y
+# CONFIG_FREERTOS_ENABLE_STATIC_TASK_CLEAN_UP is not set
 CONFIG_FREERTOS_TIMER_TASK_PRIORITY=1
 CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=2048
 CONFIG_FREERTOS_TIMER_QUEUE_LENGTH=10
@@ -729,7 +659,6 @@ CONFIG_LWIP_LOOPBACK_MAX_PBUFS=8
 #
 # TCP
 #
-CONFIG_LWIP_TCP_ISN_HOOK=y
 CONFIG_LWIP_MAX_ACTIVE_TCP=16
 CONFIG_LWIP_MAX_LISTENING_TCP=16
 CONFIG_LWIP_TCP_HIGH_SPEED_RETRANSMISSION=y
@@ -757,6 +686,14 @@ CONFIG_LWIP_MAX_UDP_PCBS=16
 CONFIG_LWIP_UDP_RECVMBOX_SIZE=6
 # end of UDP
 
+#
+# Checksums
+#
+# CONFIG_LWIP_CHECKSUM_CHECK_IP is not set
+# CONFIG_LWIP_CHECKSUM_CHECK_UDP is not set
+CONFIG_LWIP_CHECKSUM_CHECK_ICMP=y
+# end of Checksums
+
 CONFIG_LWIP_TCPIP_TASK_STACK_SIZE=3072
 CONFIG_LWIP_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
 # CONFIG_LWIP_TCPIP_TASK_AFFINITY_CPU0 is not set
@@ -789,6 +726,20 @@ CONFIG_LWIP_SNTP_UPDATE_DELAY=3600000
 
 CONFIG_LWIP_ESP_LWIP_ASSERT=y
 
+#
+# Hooks
+#
+# CONFIG_LWIP_HOOK_TCP_ISN_NONE is not set
+CONFIG_LWIP_HOOK_TCP_ISN_DEFAULT=y
+# CONFIG_LWIP_HOOK_TCP_ISN_CUSTOM is not set
+CONFIG_LWIP_HOOK_IP6_ROUTE_NONE=y
+# CONFIG_LWIP_HOOK_IP6_ROUTE_DEFAULT is not set
+# CONFIG_LWIP_HOOK_IP6_ROUTE_CUSTOM is not set
+CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_NONE=y
+# CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT is not set
+# CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_CUSTOM is not set
+# end of Hooks
+
 #
 # Debug
 #
@@ -799,8 +750,10 @@ CONFIG_LWIP_ESP_LWIP_ASSERT=y
 # CONFIG_LWIP_SOCKETS_DEBUG is not set
 # CONFIG_LWIP_IP_DEBUG is not set
 # CONFIG_LWIP_ICMP_DEBUG is not set
+# CONFIG_LWIP_DHCP_DEBUG is not set
 # CONFIG_LWIP_IP6_DEBUG is not set
 # CONFIG_LWIP_ICMP6_DEBUG is not set
+# CONFIG_LWIP_TCP_DEBUG is not set
 # end of Debug
 # end of LWIP
 
@@ -1054,6 +1007,11 @@ CONFIG_SPIFFS_USE_MTIME=y
 CONFIG_WS_BUFFER_SIZE=1024
 # end of TCP Transport
 
+#
+# TinyUSB
+#
+# end of TinyUSB
+
 #
 # Unity unit testing library
 #
@@ -1104,6 +1062,7 @@ CONFIG_WPA_MBEDTLS_CRYPTO=y
 # CONFIG_WPA_DEBUG_PRINT is not set
 # CONFIG_WPA_TESTING_OPTIONS is not set
 # CONFIG_WPA_WPS_WARS is not set
+# CONFIG_WPA_11KV_SUPPORT is not set
 # end of Supplicant
 # end of Component config
 
@@ -1112,3 +1071,157 @@ CONFIG_WPA_MBEDTLS_CRYPTO=y
 #
 # CONFIG_LEGACY_INCLUDE_COMMON_HEADERS is not set
 # end of Compatibility options
+
+# Deprecated options for backward compatibility
+CONFIG_TOOLPREFIX="xtensa-esp32-elf-"
+# CONFIG_LOG_BOOTLOADER_LEVEL_NONE is not set
+# CONFIG_LOG_BOOTLOADER_LEVEL_ERROR is not set
+# CONFIG_LOG_BOOTLOADER_LEVEL_WARN is not set
+CONFIG_LOG_BOOTLOADER_LEVEL_INFO=y
+# CONFIG_LOG_BOOTLOADER_LEVEL_DEBUG is not set
+# CONFIG_LOG_BOOTLOADER_LEVEL_VERBOSE is not set
+CONFIG_LOG_BOOTLOADER_LEVEL=3
+# CONFIG_APP_ROLLBACK_ENABLE is not set
+# CONFIG_FLASH_ENCRYPTION_ENABLED is not set
+# CONFIG_FLASHMODE_QIO is not set
+# CONFIG_FLASHMODE_QOUT is not set
+CONFIG_FLASHMODE_DIO=y
+# CONFIG_FLASHMODE_DOUT is not set
+# CONFIG_MONITOR_BAUD_9600B is not set
+# CONFIG_MONITOR_BAUD_57600B is not set
+CONFIG_MONITOR_BAUD_115200B=y
+# CONFIG_MONITOR_BAUD_230400B is not set
+# CONFIG_MONITOR_BAUD_921600B is not set
+# CONFIG_MONITOR_BAUD_2MB is not set
+# CONFIG_MONITOR_BAUD_OTHER is not set
+CONFIG_MONITOR_BAUD_OTHER_VAL=115200
+CONFIG_MONITOR_BAUD=115200
+CONFIG_COMPILER_OPTIMIZATION_LEVEL_DEBUG=y
+# CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE is not set
+CONFIG_OPTIMIZATION_ASSERTIONS_ENABLED=y
+# CONFIG_OPTIMIZATION_ASSERTIONS_SILENT is not set
+# CONFIG_OPTIMIZATION_ASSERTIONS_DISABLED is not set
+# CONFIG_CXX_EXCEPTIONS is not set
+CONFIG_STACK_CHECK_NONE=y
+# CONFIG_STACK_CHECK_NORM is not set
+# CONFIG_STACK_CHECK_STRONG is not set
+# CONFIG_STACK_CHECK_ALL is not set
+# CONFIG_WARN_WRITE_STRINGS is not set
+# CONFIG_DISABLE_GCC8_WARNINGS is not set
+# CONFIG_ESP32_APPTRACE_DEST_TRAX is not set
+CONFIG_ESP32_APPTRACE_DEST_NONE=y
+CONFIG_ESP32_APPTRACE_LOCK_ENABLE=y
+CONFIG_BTDM_CONTROLLER_BLE_MAX_CONN_EFF=0
+CONFIG_BTDM_CONTROLLER_BR_EDR_MAX_ACL_CONN_EFF=0
+CONFIG_BTDM_CONTROLLER_BR_EDR_MAX_SYNC_CONN_EFF=0
+CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE=0
+CONFIG_ADC2_DISABLE_DAC=y
+# CONFIG_SPIRAM_SUPPORT is not set
+CONFIG_TRACEMEM_RESERVE_DRAM=0x0
+# CONFIG_TWO_UNIVERSAL_MAC_ADDRESS is not set
+CONFIG_FOUR_UNIVERSAL_MAC_ADDRESS=y
+CONFIG_NUMBER_OF_UNIVERSAL_MAC_ADDRESS=4
+# CONFIG_ULP_COPROC_ENABLED is not set
+CONFIG_ULP_COPROC_RESERVE_MEM=0
+CONFIG_BROWNOUT_DET=y
+CONFIG_BROWNOUT_DET_LVL_SEL_0=y
+# CONFIG_BROWNOUT_DET_LVL_SEL_1 is not set
+# CONFIG_BROWNOUT_DET_LVL_SEL_2 is not set
+# CONFIG_BROWNOUT_DET_LVL_SEL_3 is not set
+# CONFIG_BROWNOUT_DET_LVL_SEL_4 is not set
+# CONFIG_BROWNOUT_DET_LVL_SEL_5 is not set
+# CONFIG_BROWNOUT_DET_LVL_SEL_6 is not set
+# CONFIG_BROWNOUT_DET_LVL_SEL_7 is not set
+CONFIG_BROWNOUT_DET_LVL=0
+CONFIG_REDUCE_PHY_TX_POWER=y
+CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_RC=y
+# CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_CRYSTAL is not set
+# CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_OSC is not set
+# CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_8MD256 is not set
+# CONFIG_DISABLE_BASIC_ROM_CONSOLE is not set
+# CONFIG_NO_BLOBS is not set
+# CONFIG_COMPATIBLE_PRE_V2_1_BOOTLOADERS is not set
+CONFIG_SYSTEM_EVENT_QUEUE_SIZE=32
+CONFIG_SYSTEM_EVENT_TASK_STACK_SIZE=2304
+CONFIG_MAIN_TASK_STACK_SIZE=3584
+CONFIG_IPC_TASK_STACK_SIZE=1024
+CONFIG_CONSOLE_UART_DEFAULT=y
+# CONFIG_CONSOLE_UART_CUSTOM is not set
+# CONFIG_ESP_CONSOLE_UART_NONE is not set
+CONFIG_CONSOLE_UART=y
+CONFIG_CONSOLE_UART_NUM=0
+CONFIG_CONSOLE_UART_BAUDRATE=115200
+CONFIG_INT_WDT=y
+CONFIG_INT_WDT_TIMEOUT_MS=300
+CONFIG_INT_WDT_CHECK_CPU1=y
+# CONFIG_TASK_WDT is not set
+# CONFIG_EVENT_LOOP_PROFILING is not set
+CONFIG_POST_EVENTS_FROM_ISR=y
+CONFIG_POST_EVENTS_FROM_IRAM_ISR=y
+# CONFIG_ESP32S2_PANIC_PRINT_HALT is not set
+CONFIG_ESP32S2_PANIC_PRINT_REBOOT=y
+# CONFIG_ESP32S2_PANIC_SILENT_REBOOT is not set
+# CONFIG_ESP32S2_PANIC_GDBSTUB is not set
+CONFIG_TIMER_TASK_STACK_SIZE=3584
+# CONFIG_ESP32_ENABLE_COREDUMP_TO_FLASH is not set
+# CONFIG_ESP32_ENABLE_COREDUMP_TO_UART is not set
+CONFIG_ESP32_ENABLE_COREDUMP_TO_NONE=y
+CONFIG_MB_MASTER_TIMEOUT_MS_RESPOND=150
+CONFIG_MB_MASTER_DELAY_MS_CONVERT=200
+CONFIG_MB_QUEUE_LENGTH=20
+CONFIG_MB_SERIAL_TASK_STACK_SIZE=4096
+CONFIG_MB_SERIAL_BUF_SIZE=256
+CONFIG_MB_SERIAL_TASK_PRIO=10
+CONFIG_MB_CONTROLLER_SLAVE_ID_SUPPORT=y
+CONFIG_MB_CONTROLLER_SLAVE_ID=0x00112233
+CONFIG_MB_CONTROLLER_NOTIFY_TIMEOUT=20
+CONFIG_MB_CONTROLLER_NOTIFY_QUEUE_SIZE=20
+CONFIG_MB_CONTROLLER_STACK_SIZE=4096
+CONFIG_MB_EVENT_QUEUE_TIMEOUT=20
+CONFIG_MB_TIMER_PORT_ENABLED=y
+CONFIG_MB_TIMER_GROUP=0
+CONFIG_MB_TIMER_INDEX=0
+# CONFIG_ENABLE_STATIC_TASK_CLEAN_UP_HOOK is not set
+CONFIG_TIMER_TASK_PRIORITY=1
+CONFIG_TIMER_TASK_STACK_DEPTH=2048
+CONFIG_TIMER_QUEUE_LENGTH=10
+# CONFIG_L2_TO_L3_COPY is not set
+# CONFIG_USE_ONLY_LWIP_SELECT is not set
+CONFIG_ESP_GRATUITOUS_ARP=y
+CONFIG_GARP_TMR_INTERVAL=60
+CONFIG_TCPIP_RECVMBOX_SIZE=32
+CONFIG_TCP_MAXRTX=12
+CONFIG_TCP_SYNMAXRTX=12
+CONFIG_TCP_MSS=1440
+CONFIG_TCP_MSL=60000
+CONFIG_TCP_SND_BUF_DEFAULT=5744
+CONFIG_TCP_WND_DEFAULT=5744
+CONFIG_TCP_RECVMBOX_SIZE=6
+CONFIG_TCP_QUEUE_OOSEQ=y
+# CONFIG_ESP_TCP_KEEP_CONNECTION_WHEN_IP_CHANGES is not set
+CONFIG_TCP_OVERSIZE_MSS=y
+# CONFIG_TCP_OVERSIZE_QUARTER_MSS is not set
+# CONFIG_TCP_OVERSIZE_DISABLE is not set
+CONFIG_UDP_RECVMBOX_SIZE=6
+CONFIG_TCPIP_TASK_STACK_SIZE=3072
+CONFIG_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
+# CONFIG_TCPIP_TASK_AFFINITY_CPU0 is not set
+# CONFIG_TCPIP_TASK_AFFINITY_CPU1 is not set
+CONFIG_TCPIP_TASK_AFFINITY=0x7FFFFFFF
+# CONFIG_PPP_SUPPORT is not set
+CONFIG_ESP32_PTHREAD_TASK_PRIO_DEFAULT=5
+CONFIG_ESP32_PTHREAD_TASK_STACK_SIZE_DEFAULT=3072
+CONFIG_ESP32_PTHREAD_STACK_MIN=768
+CONFIG_ESP32_DEFAULT_PTHREAD_CORE_NO_AFFINITY=y
+# CONFIG_ESP32_DEFAULT_PTHREAD_CORE_0 is not set
+# CONFIG_ESP32_DEFAULT_PTHREAD_CORE_1 is not set
+CONFIG_ESP32_PTHREAD_TASK_CORE_DEFAULT=-1
+CONFIG_ESP32_PTHREAD_TASK_NAME_DEFAULT="pthread"
+CONFIG_SPI_FLASH_WRITING_DANGEROUS_REGIONS_ABORTS=y
+# CONFIG_SPI_FLASH_WRITING_DANGEROUS_REGIONS_FAILS is not set
+# CONFIG_SPI_FLASH_WRITING_DANGEROUS_REGIONS_ALLOWED is not set
+CONFIG_SUPPRESS_SELECT_DEBUG_OUTPUT=y
+CONFIG_SUPPORT_TERMIOS=y
+CONFIG_SEMIHOSTFS_MAX_MOUNT_POINTS=1
+CONFIG_SEMIHOSTFS_HOST_PATH_MAX_LEN=128
+# End of deprecated options

test/sdkconfig.defaults

@@ -0,0 +1 @@
+CONFIG_ESP_TASK_WDT=n