mirror of
https://github.com/espressif/esp-matter.git
synced 2026-04-27 19:13:13 +00:00
Shubham Patil
63 lines
2.7 KiB
C++
63 lines
2.7 KiB
C++
/*
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*
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* Copyright (c) 2024 Project CHIP Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* ESP32FactoryDataProvider reads the commissionable data and device instance information from the factory partition.
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* This implementation extends that behaviour to read the commissionable data from secure cert partition.
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* It also extends the behaviour to read the unique id for generating rotating device identifier from the secure cert
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* partition.
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*
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*/
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#pragma once
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#include <lib/core/CHIPError.h>
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#include <lib/support/Span.h>
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// original file includes from ESP32 directory and hence it won't be able to find the ESP32FactoryDataProvider.h
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// so switching to the external_platform directory, till the connectedhomeip repo switches to quoted includes.
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#include "ESP32FactoryDataProvider.h"
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#include <esp_secure_cert_tlv_config.h>
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namespace chip {
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namespace DeviceLayer {
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class ESP32SecureCertDataProvider : public ESP32FactoryDataProvider
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{
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public:
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// CommissionableDataProvider implementation
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CHIP_ERROR GetSetupDiscriminator(uint16_t & setupDiscriminator) override;
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CHIP_ERROR GetSpake2pIterationCount(uint32_t & iterationCount) override;
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CHIP_ERROR GetSpake2pSalt(MutableByteSpan & saltBuf) override;
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CHIP_ERROR GetSpake2pVerifier(MutableByteSpan & verifierBuf, size_t & verifierLen) override;
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#if CHIP_DEVICE_CONFIG_ENABLE_DEVICE_INSTANCE_INFO_PROVIDER
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// GetRotatingDeviceIdUniqueId from GenericDeviceInstanceInfoProvider
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CHIP_ERROR GetRotatingDeviceIdUniqueId(MutableByteSpan & uniqueIdSpan) override;
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#endif // CHIP_DEVICE_CONFIG_ENABLE_DEVICE_INSTANCE_INFO_PROVIDER
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// esp-secure-cert partition contains two 32-byte fixed random values that are set during manufacturing
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// and remain constant for the lifetime of the device. These are unique per device and can be used
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// for device identification, serial numbers, or any other purpose requiring a device-specific identifier.
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static constexpr uint32_t kFixedRandomValueLength = 32;
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static CHIP_ERROR GetFixedRandom1(MutableByteSpan & randomBuf);
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static CHIP_ERROR GetFixedRandom2(MutableByteSpan & randomBuf);
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};
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} // namespace DeviceLayer
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} // namespace chip
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