ESP32-Mesh-OTA/components/mesh_ota/Mesh_OTA.c

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#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
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(errMeshNetworkSetOTAMessageHandleHandle(vAddOTAControllMessageToQueue));
ERROR_CHECK(errMeshNetworkSetChangeStateOfServerWorkerHandle(vChangeStateOfServerWorker));
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);
}
}
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
//send OTA_Version_Response to sender of OTA_Version_Request packet wirh 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, ((3000) / 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;
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)
{
//received from wrong node or type --> back to queue
vAddOTAControllMessageToQueue(&sOTAMessage);
}
}
else
{
// OTA Message queue is empty --> wait some time
vTaskDelay( (1000/QUEUE_MESSAGE_OTA_SIZE) / portTICK_PERIOD_MS);
}
}//end loop
xSemaphoreGive(bsOTAProcess); //free binary semaphore, this allows other tasks to start the OTA process
}
if((bNodeIsResponding == false) && (bNodeIsConnected == true))
{
//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_LOGI(LOG_TAG, "Transmitting OTA update: %i %%", u32Percentage);
}
if(eRole == Receiver)
{
ESP_LOGI(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;
pBootPartition = esp_ota_get_boot_partition(); //get boot partition (that will booted after reset), not the running partition
//loop through partition to read in segmensts until end or error or abort called
while( ((OTA_MESH_SEGMENT_SIZE * u32Index) < pBootPartition->size) && (err == ESP_OK) && (bAbort == false))
{
bNodeIsResponding = false; //reset to default
// 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 = ((u32Index+1) * OTA_MESH_SEGMENT_SIZE);
vPrintOTAProgress(&(pBootPartition->size), &u32OTABytesWritten, Transmitter);
if(err == ESP_OK)
{
//no error while read --> send OTA_DATA packet
sMeshPacket.type = OTA_Data;
if((OTA_MESH_SEGMENT_SIZE * (u32Index+1)) >= pBootPartition->size) //check if last segment
{
//last partition image segment --> send OTA_Complete
sMeshPacket.type = OTA_Complete;
}
err = errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
}
else
{
// 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) && (bAbort == false) && (err == ESP_OK)); u32Index++) //loop through all OTA messages
{
if(uxQueueSpacesAvailable(queueMessageOTA) < QUEUE_MESSAGE_OTA_SIZE)
{
//queue not empty
if (xQueueReceive(queueMessageOTA, &sMeshPacket, ((3000) / 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
{
//packet from node received
switch (sMeshPacket.type)
{
case OTA_ACK: //increase index for next round
u32Index++;
bNodeIsResponding = true;
break;
case OTA_Abort: //abort this OTA process
bAbort = true;
bNodeIsResponding = true;
break;
default:
//receives wrong OTA message type from node --> back to queue
vAddOTAControllMessageToQueue(&sMeshPacket);
break;
}
}
else if (err == ESP_OK)
{
//received from wrong node --> back to queue
vAddOTAControllMessageToQueue(&sMeshPacket);
}
}
else
{
// OTA Message queue is empty --> wait some time
vTaskDelay( (1000/QUEUE_MESSAGE_OTA_SIZE) / portTICK_PERIOD_MS);
}
}//end OTA message loop
if(bNodeIsResponding == false)
{
//no abort was called but node didnt responded
bAbort = true;
err = ESP_FAIL; //this OTA process failed with error
}
}//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;
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, ((3000) / 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
{
//packet from node received
switch (sMeshPacket.type)
{
case OTA_Complete: //signal end of this OTA process, fall through because same behavior as OTA_Data
bComplete = true;
//fall through
case OTA_Data: //data segement received
bNodeIsResponding = true;
ERROR_CHECK(esp_ota_write(otaHandle, sMeshPacket.au8Payload, OTA_MESH_SEGMENT_SIZE));
u32OTABytesWritten = ((u32Index+1) * OTA_MESH_SEGMENT_SIZE);
vPrintOTAProgress(&(pOTAPartition->size), &u32OTABytesWritten, Receiver);
break;
case OTA_Abort: //abort this OTA process
bAbort = true;
bNodeIsResponding = true;
break;
default:
//receives wrong OTA message type from node --> back to queue
vAddOTAControllMessageToQueue(&sMeshPacket);
break;
}
}
else if (err == ESP_OK)
{
//received from wrong node --> back to queue
vAddOTAControllMessageToQueue(&sMeshPacket);
}
}
else
{
// OTA Message queue is empty --> wait some time
vTaskDelay( (1000/QUEUE_MESSAGE_OTA_SIZE) / portTICK_PERIOD_MS);
}
}//end of OTA message loop
if(bNodeIsResponding == false)
{
//no abort was called but node didnt responded --> error
bAbort = true; //this will stop the partition segement loop
err = ESP_FAIL; //this OTA process failed with error
}
else
{
//node has responded with OTA_DATA or OTA_Complete or OTA_ABORT
if(err == ESP_OK)
{
if(bAbort == false)
{
//no error while ota write --> send OTA_ACK packet
sMeshPacket.type = OTA_ACK;
err = errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
}
}
else
{
// error while read --> send OTA_ABORT and abort this OTA process
sMeshPacket.type = OTA_Abort;
bAbort = true;
errSendMeshPacket(pMeshNodeAddr, &sMeshPacket);
}
}
}//end of partition segement loop
if(bComplete == true)
{
//all OTA segments received --> validate
ERROR_CHECK(esp_ota_end(otaHandle));
ERROR_CHECK(esp_ota_set_boot_partition(pOTAPartition));
if(err == ESP_OK)
{
//successfully updated OTA partition
*pbNewOTAImage = true;
}
}
else
{
//not all OTA segments received --> abort this OTA process
ERROR_CHECK(esp_ota_abort(otaHandle));
}
return err;
}