src/platform/Beken/OTAImageProcessorImpl.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2022 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
  *    You may obtain a copy of the License at
  *
  *        http://www.apache.org/licenses/LICENSE-2.0
  *
  *    Unless required by applicable law or agreed to in writing, software
  *    distributed under the License is distributed on an "AS IS" BASIS,
  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
  */

 #include <app/clusters/ota-requestor/OTADownloader.h>
 #include <app/clusters/ota-requestor/OTARequestorInterface.h>
 #include <lib/support/logging/CHIPLogging.h>

 #include "matter_pal.h"
 #include <platform/Beken/OTAImageProcessorImpl.h>
 #include <string.h>

 using namespace chip::System;
 using namespace ::chip::DeviceLayer::Internal;

 namespace chip {

 namespace {
 void HandleRestart(Layer * systemLayer, void * appState)
 {
     bk_reboot();
 }
 } // namespace

 const char ucFinishFlag[] = { 0xF0, 0x5D, 0x4A, 0x8C }; // Flag that OTA update has finished
 CHIP_ERROR OTAImageProcessorImpl::PrepareDownload()
 {
     ChipLogProgress(SoftwareUpdate, "Prepare download");

     DeviceLayer::PlatformMgr().ScheduleWork(HandlePrepareDownload, reinterpret_cast<intptr_t>(this));
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR OTAImageProcessorImpl::Finalize()
 {
     ChipLogProgress(SoftwareUpdate, "Finalize");

     DeviceLayer::PlatformMgr().ScheduleWork(HandleFinalize, reinterpret_cast<intptr_t>(this));
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR OTAImageProcessorImpl::Apply()
 {
     ChipLogProgress(SoftwareUpdate, "Apply");

     DeviceLayer::PlatformMgr().ScheduleWork(HandleApply, reinterpret_cast<intptr_t>(this));
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR OTAImageProcessorImpl::Abort()
 {
     ChipLogProgress(SoftwareUpdate, "Abort");

     DeviceLayer::PlatformMgr().ScheduleWork(HandleAbort, reinterpret_cast<intptr_t>(this));
     return CHIP_NO_ERROR;
 }

 bool OTAImageProcessorImpl::IsFirstImageRun()
 {
     OTARequestorInterface * requestor = chip::GetRequestorInstance();
     if (requestor == nullptr)
     {
         return false;
     }

     return requestor->GetCurrentUpdateState() == OTARequestorInterface::OTAUpdateStateEnum::kApplying;
 }

 CHIP_ERROR OTAImageProcessorImpl::ConfirmCurrentImage()
 {
     OTARequestorInterface * requestor = chip::GetRequestorInstance();
     if (requestor == nullptr)
     {
         return CHIP_ERROR_INTERNAL;
     }

     uint32_t currentVersion;
     uint32_t targetVersion = requestor->GetTargetVersion();
     ReturnErrorOnFailure(DeviceLayer::ConfigurationMgr().GetSoftwareVersion(currentVersion));
     if (currentVersion != targetVersion)
     {
         ChipLogError(SoftwareUpdate, "Current software version = %" PRIu32 ", expected software version = %" PRIu32, currentVersion,
                      targetVersion);
         return CHIP_ERROR_INCORRECT_STATE;
     }

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR OTAImageProcessorImpl::ProcessBlock(ByteSpan & block)
 {
     ChipLogProgress(SoftwareUpdate, "Process Block");

     if ((block.data() == nullptr) || block.empty())
     {
         return CHIP_ERROR_INVALID_ARGUMENT;
     }
     CHIP_ERROR err = SetBlock(block);
     if (err != CHIP_NO_ERROR)
     {
         ChipLogError(SoftwareUpdate, "Cannot set block data: %" CHIP_ERROR_FORMAT, err.Format());
         return err;
     }

     DeviceLayer::PlatformMgr().ScheduleWork(HandleProcessBlock, reinterpret_cast<intptr_t>(this));
     return CHIP_NO_ERROR;
 }

 void OTAImageProcessorImpl::HandlePrepareDownload(intptr_t context)
 {
     auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
     if (imageProcessor == nullptr)
     {
         ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
         return;
     }
     else if (imageProcessor->mDownloader == nullptr)
     {
         ChipLogError(SoftwareUpdate, "mDownloader is null");
         return;
     }

     ChipLogProgress(SoftwareUpdate, "%s [%d] OTA address space will be upgraded", __FUNCTION__, __LINE__);
     imageProcessor->mHeaderParser.Init(); // Initialize the status of OTA parse
     imageProcessor->mDownloader->OnPreparedForDownload(CHIP_NO_ERROR);
 }

 void OTAImageProcessorImpl::HandleFinalize(intptr_t context)
 {
     auto * imageProcessor                 = reinterpret_cast<OTAImageProcessorImpl *>(context);
     bk_logic_partition_t * partition_info = NULL;
     UINT32 dwFlagAddrOffset               = 0;
     if (imageProcessor == nullptr)
     {
         ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
         return;
     }

 #if CONFIG_FLASH_ORIGIN_API
     partition_info = bk_flash_get_info(BK_PARTITION_OTA);
 #else
     partition_info = bk_flash_partition_get_info(BK_PARTITION_OTA);
 #endif
     BK_CHECK_POINTER_NULL_TO_VOID(partition_info);
     dwFlagAddrOffset = partition_info->partition_length - (sizeof(ucFinishFlag) - 1);

     bk_write_ota_data_to_flash((char *) ucFinishFlag, dwFlagAddrOffset, (sizeof(ucFinishFlag) - 1));

     imageProcessor->ReleaseBlock();

     ChipLogProgress(SoftwareUpdate, "OTA image downloaded and written to flash");
 }

 void OTAImageProcessorImpl::HandleAbort(intptr_t context)
 {
     auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
     if (imageProcessor == nullptr)
     {
         ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
         return;
     }

     // Abort OTA procedure

     imageProcessor->ReleaseBlock();
 }

 void OTAImageProcessorImpl::HandleProcessBlock(intptr_t context)
 {
     auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);

     if (imageProcessor == nullptr)
     {
         ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
         return;
     }
     else if (imageProcessor->mDownloader == nullptr)
     {
         ChipLogError(SoftwareUpdate, "mDownloader is null");
         return;
     }

     ByteSpan block = ByteSpan(imageProcessor->mBlock.data(), imageProcessor->mBlock.size());

     CHIP_ERROR error = imageProcessor->ProcessHeader(block);
     if (error != CHIP_NO_ERROR)
     {
         ChipLogError(SoftwareUpdate, "Failed to process OTA image header");
         imageProcessor->mDownloader->EndDownload(error);
         return;
     }

     if (!imageProcessor->readHeader) // First block received, process header
     {
         ota_data_struct_t * tempBuf = (ota_data_struct_t *) chip::Platform::MemoryAlloc(sizeof(ota_data_struct_t));

         if (NULL == tempBuf)
         {
             ChipLogError(SoftwareUpdate, "%s [%d] malloc failed  ", __FUNCTION__, __LINE__);
         }
         memset((char *) tempBuf, 0, sizeof(ota_data_struct_t));
         memcpy((char *) &(imageProcessor->pOtaTgtHdr), block.data(), sizeof(ota_data_struct_t));

         imageProcessor->flash_data_offset = 0;

         bk_read_ota_data_in_flash((char *) tempBuf, imageProcessor->flash_data_offset, sizeof(ota_data_struct_t));
         ChipLogProgress(SoftwareUpdate, "Download version %s,date is %ld ", tempBuf->version, tempBuf->timestamp);
         ChipLogProgress(SoftwareUpdate, "Download size_raw %ld,size_package is %ld ", tempBuf->size_raw, tempBuf->size_package);
         ChipLogProgress(SoftwareUpdate, "imageProcessor version %s,date is 0x%lx ", imageProcessor->pOtaTgtHdr.version,
                         imageProcessor->pOtaTgtHdr.timestamp);

         bk_logic_partition_t * partition_info   = NULL;
         UINT32 dwFlagAddrOffset                 = 0;
         char ucflag[(sizeof(ucFinishFlag) - 1)] = { 0 };

 #if CONFIG_FLASH_ORIGIN_API
         partition_info = bk_flash_get_info(BK_PARTITION_OTA);
 #else
         partition_info = bk_flash_partition_get_info(BK_PARTITION_OTA);
 #endif
         BK_CHECK_POINTER_NULL_TO_VOID(partition_info);

         dwFlagAddrOffset = partition_info->partition_length - (sizeof(ucFinishFlag) - 1);
         bk_read_ota_data_in_flash((char *) ucflag, dwFlagAddrOffset, (sizeof(ucFinishFlag) - 1));
         ChipLogProgress(SoftwareUpdate, "Block size is %d ,ucFinishFlag size len is %d", block.size(), sizeof(ucFinishFlag));

         if ((0 == memcmp(ucflag, ucFinishFlag, (sizeof(ucFinishFlag) - 1))) &&
             (0 == memcmp(tempBuf->version, imageProcessor->pOtaTgtHdr.version, sizeof(imageProcessor->pOtaTgtHdr.version))))
         {
             chip::Platform::MemoryFree(tempBuf);
             tempBuf = NULL;
             ChipLogError(SoftwareUpdate, "The version is is the same as the previous version");
             return;
         }

         imageProcessor->readHeader = true;
         ChipLogProgress(SoftwareUpdate, "flash_data_offset is 0x%lx", imageProcessor->flash_data_offset);

         // Erase update partition
         ChipLogProgress(SoftwareUpdate, "Erasing target partition...");
         bk_erase_ota_data_in_flash();
         ChipLogProgress(SoftwareUpdate, "Erasing target partition...");

         if (0 != bk_write_ota_data_to_flash((char *) block.data(), imageProcessor->flash_data_offset, block.size()))
         {
             chip::Platform::MemoryFree(tempBuf);
             tempBuf = NULL;
             ChipLogError(SoftwareUpdate, "bk_write_ota_data_to_flash failed %s [%d] ", __FUNCTION__, __LINE__);
             imageProcessor->mDownloader->EndDownload(CHIP_ERROR_WRITE_FAILED);
             return;
         }

         imageProcessor->flash_data_offset += block.size(); // count next write flash address

         chip::Platform::MemoryFree(tempBuf);
         tempBuf = NULL;
     }
     else // received subsequent blocks
     {
         if (0 != bk_write_ota_data_to_flash((char *) block.data(), imageProcessor->flash_data_offset, block.size()))
         {
             ChipLogError(SoftwareUpdate, "bk_write_ota_data_to_flash failed %s [%d] ", __FUNCTION__, __LINE__);
             imageProcessor->mDownloader->EndDownload(CHIP_ERROR_WRITE_FAILED);
             return;
         }

         imageProcessor->flash_data_offset += block.size(); // count next write flash address

         imageProcessor->size += block.size();
     }

     imageProcessor->mParams.downloadedBytes += block.size();
     imageProcessor->mDownloader->FetchNextData();
 }

 void OTAImageProcessorImpl::HandleApply(intptr_t context)
 {
     auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
     ChipLogError(SoftwareUpdate, "Update completly,will reboot %s [%d] ", __FUNCTION__, __LINE__);

     // HandleApply is called after delayed action time seconds are elapsed, so it would be safe to schedule the restart
     chip::DeviceLayer::SystemLayer().StartTimer(chip::System::Clock::Milliseconds32(2 * 1000), HandleRestart, nullptr);
 }

 CHIP_ERROR OTAImageProcessorImpl::SetBlock(ByteSpan & block)
 {
     if (!IsSpanUsable(block))
     {
         ReleaseBlock();
         return CHIP_NO_ERROR;
     }

     if (mBlock.size() < block.size())
     {
         if (!mBlock.empty())
         {
             ReleaseBlock();
         }
         uint8_t * mBlock_ptr = static_cast<uint8_t *>(chip::Platform::MemoryAlloc(block.size()));
         if (mBlock_ptr == nullptr)
         {
             return CHIP_ERROR_NO_MEMORY;
         }
         mBlock = MutableByteSpan(mBlock_ptr, block.size());
     }
     CHIP_ERROR err = CopySpanToMutableSpan(block, mBlock);
     if (err != CHIP_NO_ERROR)
     {
         ChipLogError(SoftwareUpdate, "Cannot copy block data: %" CHIP_ERROR_FORMAT, err.Format());
         return err;
     }

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR OTAImageProcessorImpl::ReleaseBlock()
 {
     if (mBlock.data() != nullptr)
     {
         chip::Platform::MemoryFree(mBlock.data());
     }

     mBlock = MutableByteSpan();
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR OTAImageProcessorImpl::ProcessHeader(ByteSpan & block)
 {
     if (mHeaderParser.IsInitialized())
     {
         OTAImageHeader header;
         CHIP_ERROR error = mHeaderParser.AccumulateAndDecode(block, header);

         // Needs more data to decode the header
         ReturnErrorCodeIf(error == CHIP_ERROR_BUFFER_TOO_SMALL, CHIP_NO_ERROR);
         ReturnErrorOnFailure(error);

         mParams.totalFileBytes = header.mPayloadSize;
         mHeaderParser.Clear();
     }

     return CHIP_NO_ERROR;
 }

 } // namespace chip
	/*
	*
	* Copyright (c) 2022 Project CHIP Authors
	* All rights reserved.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include <app/clusters/ota-requestor/OTADownloader.h>
	#include <app/clusters/ota-requestor/OTARequestorInterface.h>
	#include <lib/support/logging/CHIPLogging.h>

	#include "matter_pal.h"
	#include <platform/Beken/OTAImageProcessorImpl.h>
	#include <string.h>

	using namespace chip::System;
	using namespace ::chip::DeviceLayer::Internal;

	namespace chip {

	namespace {
	void HandleRestart(Layer * systemLayer, void * appState)
	{
	bk_reboot();
	}
	} // namespace

	const char ucFinishFlag[] = { 0xF0, 0x5D, 0x4A, 0x8C }; // Flag that OTA update has finished
	CHIP_ERROR OTAImageProcessorImpl::PrepareDownload()
	{
	ChipLogProgress(SoftwareUpdate, "Prepare download");

	DeviceLayer::PlatformMgr().ScheduleWork(HandlePrepareDownload, reinterpret_cast<intptr_t>(this));
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR OTAImageProcessorImpl::Finalize()
	{
	ChipLogProgress(SoftwareUpdate, "Finalize");

	DeviceLayer::PlatformMgr().ScheduleWork(HandleFinalize, reinterpret_cast<intptr_t>(this));
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR OTAImageProcessorImpl::Apply()
	{
	ChipLogProgress(SoftwareUpdate, "Apply");

	DeviceLayer::PlatformMgr().ScheduleWork(HandleApply, reinterpret_cast<intptr_t>(this));
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR OTAImageProcessorImpl::Abort()
	{
	ChipLogProgress(SoftwareUpdate, "Abort");

	DeviceLayer::PlatformMgr().ScheduleWork(HandleAbort, reinterpret_cast<intptr_t>(this));
	return CHIP_NO_ERROR;
	}

	bool OTAImageProcessorImpl::IsFirstImageRun()
	{
	OTARequestorInterface * requestor = chip::GetRequestorInstance();
	if (requestor == nullptr)
	{
	return false;
	}

	return requestor->GetCurrentUpdateState() == OTARequestorInterface::OTAUpdateStateEnum::kApplying;
	}

	CHIP_ERROR OTAImageProcessorImpl::ConfirmCurrentImage()
	{
	OTARequestorInterface * requestor = chip::GetRequestorInstance();
	if (requestor == nullptr)
	{
	return CHIP_ERROR_INTERNAL;
	}

	uint32_t currentVersion;
	uint32_t targetVersion = requestor->GetTargetVersion();
	ReturnErrorOnFailure(DeviceLayer::ConfigurationMgr().GetSoftwareVersion(currentVersion));
	if (currentVersion != targetVersion)
	{
	ChipLogError(SoftwareUpdate, "Current software version = %" PRIu32 ", expected software version = %" PRIu32, currentVersion,
	targetVersion);
	return CHIP_ERROR_INCORRECT_STATE;
	}

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR OTAImageProcessorImpl::ProcessBlock(ByteSpan & block)
	{
	ChipLogProgress(SoftwareUpdate, "Process Block");

	if ((block.data() == nullptr) \|\| block.empty())
	{
	return CHIP_ERROR_INVALID_ARGUMENT;
	}
	CHIP_ERROR err = SetBlock(block);
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(SoftwareUpdate, "Cannot set block data: %" CHIP_ERROR_FORMAT, err.Format());
	return err;
	}

	DeviceLayer::PlatformMgr().ScheduleWork(HandleProcessBlock, reinterpret_cast<intptr_t>(this));
	return CHIP_NO_ERROR;
	}

	void OTAImageProcessorImpl::HandlePrepareDownload(intptr_t context)
	{
	auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
	if (imageProcessor == nullptr)
	{
	ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
	return;
	}
	else if (imageProcessor->mDownloader == nullptr)
	{
	ChipLogError(SoftwareUpdate, "mDownloader is null");
	return;
	}

	ChipLogProgress(SoftwareUpdate, "%s [%d] OTA address space will be upgraded", __FUNCTION__, __LINE__);
	imageProcessor->mHeaderParser.Init(); // Initialize the status of OTA parse
	imageProcessor->mDownloader->OnPreparedForDownload(CHIP_NO_ERROR);
	}

	void OTAImageProcessorImpl::HandleFinalize(intptr_t context)
	{
	auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
	bk_logic_partition_t * partition_info = NULL;
	UINT32 dwFlagAddrOffset = 0;
	if (imageProcessor == nullptr)
	{
	ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
	return;
	}

	#if CONFIG_FLASH_ORIGIN_API
	partition_info = bk_flash_get_info(BK_PARTITION_OTA);
	#else
	partition_info = bk_flash_partition_get_info(BK_PARTITION_OTA);
	#endif
	BK_CHECK_POINTER_NULL_TO_VOID(partition_info);
	dwFlagAddrOffset = partition_info->partition_length - (sizeof(ucFinishFlag) - 1);

	bk_write_ota_data_to_flash((char *) ucFinishFlag, dwFlagAddrOffset, (sizeof(ucFinishFlag) - 1));

	imageProcessor->ReleaseBlock();

	ChipLogProgress(SoftwareUpdate, "OTA image downloaded and written to flash");
	}

	void OTAImageProcessorImpl::HandleAbort(intptr_t context)
	{
	auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
	if (imageProcessor == nullptr)
	{
	ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
	return;
	}

	// Abort OTA procedure

	imageProcessor->ReleaseBlock();
	}

	void OTAImageProcessorImpl::HandleProcessBlock(intptr_t context)
	{
	auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);

	if (imageProcessor == nullptr)
	{
	ChipLogError(SoftwareUpdate, "ImageProcessor context is null");
	return;
	}
	else if (imageProcessor->mDownloader == nullptr)
	{
	ChipLogError(SoftwareUpdate, "mDownloader is null");
	return;
	}

	ByteSpan block = ByteSpan(imageProcessor->mBlock.data(), imageProcessor->mBlock.size());

	CHIP_ERROR error = imageProcessor->ProcessHeader(block);
	if (error != CHIP_NO_ERROR)
	{
	ChipLogError(SoftwareUpdate, "Failed to process OTA image header");
	imageProcessor->mDownloader->EndDownload(error);
	return;
	}

	if (!imageProcessor->readHeader) // First block received, process header
	{
	ota_data_struct_t * tempBuf = (ota_data_struct_t *) chip::Platform::MemoryAlloc(sizeof(ota_data_struct_t));

	if (NULL == tempBuf)
	{
	ChipLogError(SoftwareUpdate, "%s [%d] malloc failed ", __FUNCTION__, __LINE__);
	}
	memset((char *) tempBuf, 0, sizeof(ota_data_struct_t));
	memcpy((char *) &(imageProcessor->pOtaTgtHdr), block.data(), sizeof(ota_data_struct_t));

	imageProcessor->flash_data_offset = 0;

	bk_read_ota_data_in_flash((char *) tempBuf, imageProcessor->flash_data_offset, sizeof(ota_data_struct_t));
	ChipLogProgress(SoftwareUpdate, "Download version %s,date is %ld ", tempBuf->version, tempBuf->timestamp);
	ChipLogProgress(SoftwareUpdate, "Download size_raw %ld,size_package is %ld ", tempBuf->size_raw, tempBuf->size_package);
	ChipLogProgress(SoftwareUpdate, "imageProcessor version %s,date is 0x%lx ", imageProcessor->pOtaTgtHdr.version,
	imageProcessor->pOtaTgtHdr.timestamp);

	bk_logic_partition_t * partition_info = NULL;
	UINT32 dwFlagAddrOffset = 0;
	char ucflag[(sizeof(ucFinishFlag) - 1)] = { 0 };

	#if CONFIG_FLASH_ORIGIN_API
	partition_info = bk_flash_get_info(BK_PARTITION_OTA);
	#else
	partition_info = bk_flash_partition_get_info(BK_PARTITION_OTA);
	#endif
	BK_CHECK_POINTER_NULL_TO_VOID(partition_info);

	dwFlagAddrOffset = partition_info->partition_length - (sizeof(ucFinishFlag) - 1);
	bk_read_ota_data_in_flash((char *) ucflag, dwFlagAddrOffset, (sizeof(ucFinishFlag) - 1));
	ChipLogProgress(SoftwareUpdate, "Block size is %d ,ucFinishFlag size len is %d", block.size(), sizeof(ucFinishFlag));

	if ((0 == memcmp(ucflag, ucFinishFlag, (sizeof(ucFinishFlag) - 1))) &&
	(0 == memcmp(tempBuf->version, imageProcessor->pOtaTgtHdr.version, sizeof(imageProcessor->pOtaTgtHdr.version))))
	{
	chip::Platform::MemoryFree(tempBuf);
	tempBuf = NULL;
	ChipLogError(SoftwareUpdate, "The version is is the same as the previous version");
	return;
	}

	imageProcessor->readHeader = true;
	ChipLogProgress(SoftwareUpdate, "flash_data_offset is 0x%lx", imageProcessor->flash_data_offset);

	// Erase update partition
	ChipLogProgress(SoftwareUpdate, "Erasing target partition...");
	bk_erase_ota_data_in_flash();
	ChipLogProgress(SoftwareUpdate, "Erasing target partition...");

	if (0 != bk_write_ota_data_to_flash((char *) block.data(), imageProcessor->flash_data_offset, block.size()))
	{
	chip::Platform::MemoryFree(tempBuf);
	tempBuf = NULL;
	ChipLogError(SoftwareUpdate, "bk_write_ota_data_to_flash failed %s [%d] ", __FUNCTION__, __LINE__);
	imageProcessor->mDownloader->EndDownload(CHIP_ERROR_WRITE_FAILED);
	return;
	}

	imageProcessor->flash_data_offset += block.size(); // count next write flash address

	chip::Platform::MemoryFree(tempBuf);
	tempBuf = NULL;
	}
	else // received subsequent blocks
	{
	if (0 != bk_write_ota_data_to_flash((char *) block.data(), imageProcessor->flash_data_offset, block.size()))
	{
	ChipLogError(SoftwareUpdate, "bk_write_ota_data_to_flash failed %s [%d] ", __FUNCTION__, __LINE__);
	imageProcessor->mDownloader->EndDownload(CHIP_ERROR_WRITE_FAILED);
	return;
	}

	imageProcessor->flash_data_offset += block.size(); // count next write flash address

	imageProcessor->size += block.size();
	}

	imageProcessor->mParams.downloadedBytes += block.size();
	imageProcessor->mDownloader->FetchNextData();
	}

	void OTAImageProcessorImpl::HandleApply(intptr_t context)
	{
	auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
	ChipLogError(SoftwareUpdate, "Update completly,will reboot %s [%d] ", __FUNCTION__, __LINE__);

	// HandleApply is called after delayed action time seconds are elapsed, so it would be safe to schedule the restart
	chip::DeviceLayer::SystemLayer().StartTimer(chip::System::Clock::Milliseconds32(2 * 1000), HandleRestart, nullptr);
	}

	CHIP_ERROR OTAImageProcessorImpl::SetBlock(ByteSpan & block)
	{
	if (!IsSpanUsable(block))
	{
	ReleaseBlock();
	return CHIP_NO_ERROR;
	}

	if (mBlock.size() < block.size())
	{
	if (!mBlock.empty())
	{
	ReleaseBlock();
	}
	uint8_t * mBlock_ptr = static_cast<uint8_t *>(chip::Platform::MemoryAlloc(block.size()));
	if (mBlock_ptr == nullptr)
	{
	return CHIP_ERROR_NO_MEMORY;
	}
	mBlock = MutableByteSpan(mBlock_ptr, block.size());
	}
	CHIP_ERROR err = CopySpanToMutableSpan(block, mBlock);
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(SoftwareUpdate, "Cannot copy block data: %" CHIP_ERROR_FORMAT, err.Format());
	return err;
	}

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR OTAImageProcessorImpl::ReleaseBlock()
	{
	if (mBlock.data() != nullptr)
	{
	chip::Platform::MemoryFree(mBlock.data());
	}

	mBlock = MutableByteSpan();
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR OTAImageProcessorImpl::ProcessHeader(ByteSpan & block)
	{
	if (mHeaderParser.IsInitialized())
	{
	OTAImageHeader header;
	CHIP_ERROR error = mHeaderParser.AccumulateAndDecode(block, header);

	// Needs more data to decode the header
	ReturnErrorCodeIf(error == CHIP_ERROR_BUFFER_TOO_SMALL, CHIP_NO_ERROR);
	ReturnErrorOnFailure(error);

	mParams.totalFileBytes = header.mPayloadSize;
	mHeaderParser.Clear();
	}

	return CHIP_NO_ERROR;
	}

	} // namespace chip