examples/platform/nxp/common/factory_data/source/AppFactoryDataDefaultImpl.cpp

/*
 *
 *    Copyright (c) 2023 Project CHIP Authors
 *    Copyright 2023-2024 NXP
 *    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 "AppFactoryData.h"

#include <credentials/DeviceAttestationCredsProvider.h>
#include <platform/CommissionableDataProvider.h>
#include <platform/DeviceInstanceInfoProvider.h>

#if CONFIG_CHIP_PLAT_LOAD_REAL_FACTORY_DATA
#include "FactoryDataProvider.h"
#if CONFIG_CHIP_ENCRYPTED_FACTORY_DATA
/*
 * Test key used to encrypt factory data before storing it to the flash.
 */
static const uint8_t aes128TestKey[]
    __attribute__((aligned)) = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c };
#endif /* CONFIG_CHIP_ENCRYPTED_FACTORY_DATA */
#else
#include <credentials/examples/DeviceAttestationCredsExample.h>
#endif /* CONFIG_CHIP_PLAT_LOAD_REAL_FACTORY_DATA */

using namespace chip;
using namespace ::chip::Credentials;
using namespace ::chip::DeviceLayer;

/**
 * Allows to register Matter factory data before initializing the Matter stack
 * Empty content here nothing particular to do.
 */
CHIP_ERROR chip::NXP::App::AppFactoryData_PreMatterStackInit(void)
{
    return CHIP_NO_ERROR;
}

/**
 * Allows to register Matter factory data before initializing the Matter stack
 * Load factory data.
 *
 * In this example we assume that the matter factory dataset is encrypted.
 * This example demonstrates the usage of AES ecb with a software key.
 */
CHIP_ERROR chip::NXP::App::AppFactoryData_PostMatterStackInit(void)
{
#if CONFIG_CHIP_PLAT_LOAD_REAL_FACTORY_DATA
#if CONFIG_CHIP_ENCRYPTED_FACTORY_DATA
    FactoryDataPrvdImpl().SetEncryptionMode(FactoryDataProvider::encrypt_ecb);
    FactoryDataPrvdImpl().SetAes128Key(&aes128TestKey[0]);
#endif /* CONFIG_CHIP_ENCRYPTED_FACTORY_DATA */

    ReturnErrorOnFailure(FactoryDataPrvdImpl().Init());

    SetDeviceInstanceInfoProvider(&FactoryDataPrvd());
    SetDeviceAttestationCredentialsProvider(&FactoryDataPrvd());
    SetCommissionableDataProvider(&FactoryDataPrvd());
#else
    // Initialize device attestation with example one (only for debug purpose)
    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
#endif /* CONFIG_CHIP_PLAT_LOAD_REAL_FACTORY_DATA */
    return CHIP_NO_ERROR;
}