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/*
*
* Copyright (c) 2021 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 "OTAImageProcessorImpl.h"
namespace chip {
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 currentSwVersion;
uint32_t targetVersion = requestor->GetTargetVersion();
ReturnErrorOnFailure(DeviceLayer::ConfigurationMgr().GetSoftwareVersion(currentSwVersion));
if (currentSwVersion != targetVersion)
{
ChipLogError(SoftwareUpdate, "Current software version = %" PRIu32 ", expected software version = %" PRIu32,
currentSwVersion, targetVersion);
return CHIP_ERROR_INCORRECT_STATE;
}
return CHIP_NO_ERROR;
}
CHIP_ERROR OTAImageProcessorImpl::PrepareDownload()
{
// Get OTA status - under what circumstances does prepared break?
// what happens if a prepare is pending and another one is invoked
// Should we store the state here and wait until we receive notification
mHeaderParser.Init();
DeviceLayer::PlatformMgr().ScheduleWork(HandlePrepareDownload, reinterpret_cast<intptr_t>(this));
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();
// Load qvCHIP_Ota header structure and call application callback to validate image header
qvCHIP_Ota_ImageHeader_t qvCHIP_OtaImgHeader;
this->mSwVer = header.mSoftwareVersion; // Store software version in imageProcessor as well
qvCHIP_OtaImgHeader.vendorId = header.mVendorId;
qvCHIP_OtaImgHeader.productId = header.mProductId;
qvCHIP_OtaImgHeader.softwareVersion = header.mSoftwareVersion;
qvCHIP_OtaImgHeader.minApplicableVersion = header.mMinApplicableVersion.ValueOr(0);
qvCHIP_OtaImgHeader.maxApplicableVersion = header.mMaxApplicableVersion.ValueOr(0);
if (true != qvCHIP_OtaValidateImage(qvCHIP_OtaImgHeader))
{
// Dropping image due to invalid header
return CHIP_DEVICE_ERROR_SOFTWARE_UPDATE_IGNORED;
}
}
return CHIP_NO_ERROR;
}
CHIP_ERROR OTAImageProcessorImpl::Finalize()
{
DeviceLayer::PlatformMgr().ScheduleWork(HandleFinalize, reinterpret_cast<intptr_t>(this));
return CHIP_NO_ERROR;
}
CHIP_ERROR OTAImageProcessorImpl::Apply()
{
ChipLogProgress(SoftwareUpdate, "Q: Applying - resetting device");
// Reset into Bootloader
qvCHIP_OtaReset();
return CHIP_NO_ERROR;
}
CHIP_ERROR OTAImageProcessorImpl::Abort()
{
DeviceLayer::PlatformMgr().ScheduleWork(HandleAbort, reinterpret_cast<intptr_t>(this));
return CHIP_NO_ERROR;
}
CHIP_ERROR OTAImageProcessorImpl::ProcessBlock(ByteSpan & block)
{
if ((block.data() == nullptr) || block.empty())
{
return CHIP_ERROR_INVALID_ARGUMENT;
}
CHIP_ERROR err = ProcessHeader(block);
if (err != CHIP_NO_ERROR)
{
ChipLogError(SoftwareUpdate, "Matter image header parser error %s", chip::ErrorStr(err));
this->mDownloader->EndDownload(CHIP_ERROR_INVALID_FILE_IDENTIFIER);
return err;
}
// Store block data for HandleProcessBlock to access
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;
}
// running this in a thread so won't block main event loop
ChipLogProgress(SoftwareUpdate, "Q: HandlePrepareDownload");
qvCHIP_OtaEraseArea();
qvCHIP_OtaStartWrite();
// Initialize tracking variables
imageProcessor->mParams.downloadedBytes = 0;
imageProcessor->mDownloader->OnPreparedForDownload(CHIP_NO_ERROR);
}
void OTAImageProcessorImpl::HandleFinalize(intptr_t context)
{
auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
if (imageProcessor == nullptr)
{
return;
}
ChipLogProgress(SoftwareUpdate, "Q: HandleFinalize");
qvCHIP_OtaSetPendingImage();
imageProcessor->ReleaseBlock();
// Start from scratch
imageProcessor->mParams.downloadedBytes = 0;
}
void OTAImageProcessorImpl::HandleAbort(intptr_t context)
{
auto * imageProcessor = reinterpret_cast<OTAImageProcessorImpl *>(context);
if (imageProcessor == nullptr)
{
return;
}
ChipLogProgress(SoftwareUpdate, "Q: HandleAbort");
imageProcessor->ReleaseBlock();
// Start from scratch
imageProcessor->mParams.downloadedBytes = 0;
}
void OTAImageProcessorImpl::HandleProcessBlock(intptr_t context)
{
qvCHIP_OtaStatus_t status;
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;
}
ChipLogDetail(SoftwareUpdate, "Q: HandleProcessBlock");
status =
qvCHIP_OtaWriteChunk(imageProcessor->mParams.downloadedBytes, static_cast<std::uint16_t>(imageProcessor->mBlock.size()),
reinterpret_cast<std::uint8_t *>(imageProcessor->mBlock.data()));
if (status != qvCHIP_OtaStatusSuccess)
{
ChipLogError(SoftwareUpdate, "Flash write failed");
imageProcessor->mDownloader->EndDownload(CHIP_ERROR_WRITE_FAILED);
return;
}
imageProcessor->mParams.downloadedBytes += imageProcessor->mBlock.size();
imageProcessor->mDownloader->FetchNextData();
}
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;
}
} // namespace chip