| /* |
| * |
| * Copyright (c) 2022 Project CHIP Authors |
| * |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <credentials/DeviceAttestationCredsProvider.h> |
| #include <platform/CommissionableDataProvider.h> |
| #include <platform/DeviceInstanceInfoProvider.h> |
| |
| #include <drivers/flash.h> |
| #include <fprotect.h> |
| #include <pm_config.h> |
| #include <system/SystemError.h> |
| |
| #include "FactoryDataParser.h" |
| |
| namespace chip { |
| namespace DeviceLayer { |
| |
| struct InternalFlashFactoryData |
| { |
| CHIP_ERROR GetFactoryDataPartition(uint8_t *& data, size_t & dataSize) |
| { |
| data = reinterpret_cast<uint8_t *>(PM_FACTORY_DATA_ADDRESS); |
| dataSize = PM_FACTORY_DATA_SIZE; |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR ProtectFactoryDataPartitionAgainstWrite() |
| { |
| int ret = fprotect_area(PM_FACTORY_DATA_ADDRESS, PM_FACTORY_DATA_SIZE); |
| return System::MapErrorZephyr(ret); |
| } |
| }; |
| |
| struct ExternalFlashFactoryData |
| { |
| CHIP_ERROR GetFactoryDataPartition(uint8_t *& data, size_t & dataSize) |
| { |
| int ret = flash_read(mFlashDevice, PM_FACTORY_DATA_ADDRESS, mFactoryDataBuffer, PM_FACTORY_DATA_SIZE); |
| |
| if (ret != 0) |
| { |
| return CHIP_ERROR_READ_FAILED; |
| } |
| |
| data = mFactoryDataBuffer; |
| dataSize = PM_FACTORY_DATA_SIZE; |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR ProtectFactoryDataPartitionAgainstWrite() { return CHIP_ERROR_NOT_IMPLEMENTED; } |
| |
| const struct device * mFlashDevice = DEVICE_DT_GET(DT_CHOSEN(zephyr_flash_controller)); |
| uint8_t mFactoryDataBuffer[PM_FACTORY_DATA_SIZE]; |
| }; |
| |
| template <class FlashFactoryData> |
| class FactoryDataProvider : public chip::Credentials::DeviceAttestationCredentialsProvider, |
| public CommissionableDataProvider, |
| public DeviceInstanceInfoProvider |
| { |
| public: |
| CHIP_ERROR Init(); |
| |
| // ===== Members functions that implement the DeviceAttestationCredentialsProvider |
| CHIP_ERROR GetCertificationDeclaration(MutableByteSpan & outBuffer) override; |
| CHIP_ERROR GetFirmwareInformation(MutableByteSpan & out_firmware_info_buffer) override; |
| CHIP_ERROR GetDeviceAttestationCert(MutableByteSpan & outBuffer) override; |
| CHIP_ERROR GetProductAttestationIntermediateCert(MutableByteSpan & outBuffer) override; |
| CHIP_ERROR SignWithDeviceAttestationKey(const ByteSpan & messageToSign, MutableByteSpan & outSignBuffer) override; |
| |
| // ===== Members functions that implement the CommissionableDataProvider |
| CHIP_ERROR GetSetupDiscriminator(uint16_t & setupDiscriminator) override; |
| CHIP_ERROR SetSetupDiscriminator(uint16_t setupDiscriminator) override; |
| CHIP_ERROR GetSpake2pIterationCount(uint32_t & iterationCount) override; |
| CHIP_ERROR GetSpake2pSalt(MutableByteSpan & saltBuf) override; |
| CHIP_ERROR GetSpake2pVerifier(MutableByteSpan & verifierBuf, size_t & verifierLen) override; |
| CHIP_ERROR GetSetupPasscode(uint32_t & setupPasscode) override; |
| CHIP_ERROR SetSetupPasscode(uint32_t setupPasscode) override; |
| |
| // ===== Members functions that implement the DeviceInstanceInfoProvider |
| CHIP_ERROR GetVendorName(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetVendorId(uint16_t & vendorId) override; |
| CHIP_ERROR GetProductName(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetProductId(uint16_t & productId) override; |
| CHIP_ERROR GetPartNumber(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetProductURL(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetProductLabel(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetSerialNumber(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetManufacturingDate(uint16_t & year, uint8_t & month, uint8_t & day) override; |
| CHIP_ERROR GetHardwareVersion(uint16_t & hardwareVersion) override; |
| CHIP_ERROR GetHardwareVersionString(char * buf, size_t bufSize) override; |
| CHIP_ERROR GetRotatingDeviceIdUniqueId(MutableByteSpan & uniqueIdSpan) override; |
| |
| // ===== Members functions that are platform-specific |
| CHIP_ERROR GetEnableKey(MutableByteSpan & enableKey); |
| |
| private: |
| static constexpr uint16_t kFactoryDataPartitionSize = PM_FACTORY_DATA_SIZE; |
| static constexpr uint32_t kFactoryDataPartitionAddress = PM_FACTORY_DATA_ADDRESS; |
| static constexpr uint8_t kDACPrivateKeyLength = 32; |
| static constexpr uint8_t kDACPublicKeyLength = 65; |
| |
| struct FactoryData mFactoryData; |
| FlashFactoryData mFlashFactoryData; |
| }; |
| |
| } // namespace DeviceLayer |
| } // namespace chip |