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/*
*
* Copyright (c) 2020-2022 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.
*/
/**
* @file
* Utilities for accessing persisted device configuration on
* platforms based on the NXP SDK.
*/
#pragma once
#include <platform/internal/CHIPDeviceLayerInternal.h>
#include "FreeRTOS.h"
#include <functional>
#define CHIP_PLAT_NO_NVM 0
#define CHIP_PLAT_NVM_FWK 1
#define CHIP_PLAT_LITTLEFS 2
#define CHIP_PLAT_KEY_STORAGE 3
#define DEBUG_NVM 0
#ifndef CHIP_PLAT_NVM_SUPPORT
#define CHIP_PLAT_NVM_SUPPORT CHIP_PLAT_NO_NVM
#endif
#if (CHIP_PLAT_NVM_SUPPORT == CHIP_PLAT_NVM_FWK)
#include "NVM_Interface.h"
#elif (CHIP_PLAT_NVM_SUPPORT == CHIP_PLAT_LITTLEFS)
#include "fwk_filesystem.h"
#endif
#if (CHIP_PLAT_NVM_SUPPORT == CHIP_PLAT_KEY_STORAGE)
#include "fwk_key_storage.h"
#else
#include "ram_storage.h"
#endif
namespace chip {
namespace DeviceLayer {
namespace Internal {
/* Base for the category calculation when determining the key IDs */
#define CATEGORY_BASE 0x01
constexpr inline uint16_t config_key(uint8_t chipId, uint8_t pdmId)
{
return static_cast<uint16_t>(chipId) << 8 | pdmId;
}
/**
* This implementation uses the NVM component from Connectivity Framework or the
* The Little FS component depending on CHIP_PLAT_NVM_SUPPORT defined in the build system
*
* NOTE: This class is designed to be mixed-in to the concrete subclass of the
* GenericConfigurationManagerImpl<> template. When used this way, the class
* naturally provides implementations for the delegated members referenced by
* the template class (e.g. the ReadConfigValue() method).
*/
class NXPConfig
{
public:
// Category ids used by the CHIP Device Layer
static constexpr uint8_t kFileId_ChipFactory = CATEGORY_BASE; /**< Category containing persistent config values set at
* manufacturing time. Retained during factory reset. */
static constexpr uint8_t kFileId_ChipConfig = CATEGORY_BASE + 1; /**< Catyegory containing dynamic config values set at runtime.
* Cleared during factory reset. */
static constexpr uint8_t kFileId_ChipCounter = CATEGORY_BASE + 2; /**< Category containing dynamic counter values set at
* runtime. Retained during factory reset. */
static constexpr uint8_t kFileId_KVS = CATEGORY_BASE + 3; /**< Category containing KVS set at runtime.
* Cleared during factory reset. */
using Key = uint16_t;
// Key definitions for well-known configuration values.
// Factory config keys
static constexpr Key kConfigKey_SerialNum = config_key(kFileId_ChipFactory, 0x00);
static constexpr Key kConfigKey_UniqueId = config_key(kFileId_ChipFactory, 0x01);
static constexpr Key kConfigKey_MfrDeviceId = config_key(kFileId_ChipFactory, 0x02);
static constexpr Key kConfigKey_MfrDeviceCert = config_key(kFileId_ChipFactory, 0x03);
static constexpr Key kConfigKey_MfrDevicePrivateKey = config_key(kFileId_ChipFactory, 0x04);
static constexpr Key kConfigKey_ManufacturingDate = config_key(kFileId_ChipFactory, 0x05);
static constexpr Key kConfigKey_SetupPinCode = config_key(kFileId_ChipFactory, 0x06);
static constexpr Key kConfigKey_MfrDeviceICACerts = config_key(kFileId_ChipFactory, 0x07);
static constexpr Key kConfigKey_HardwareVersion = config_key(kFileId_ChipFactory, 0x08);
static constexpr Key kConfigKey_SetupDiscriminator = config_key(kFileId_ChipFactory, 0x09);
static constexpr Key kConfigKey_Spake2pIterationCount = config_key(kFileId_ChipFactory, 0x0A);
static constexpr Key kConfigKey_Spake2pSalt = config_key(kFileId_ChipFactory, 0x0B);
static constexpr Key kConfigKey_Spake2pVerifier = config_key(kFileId_ChipFactory, 0x0C);
// CHIP Config Keys
static constexpr Key kConfigKey_FabricId = config_key(kFileId_ChipConfig, 0x00);
static constexpr Key kConfigKey_ServiceConfig = config_key(kFileId_ChipConfig, 0x01);
static constexpr Key kConfigKey_PairedAccountId = config_key(kFileId_ChipConfig, 0x02);
static constexpr Key kConfigKey_ServiceId = config_key(kFileId_ChipConfig, 0x03);
static constexpr Key kConfigKey_FabricSecret = config_key(kFileId_ChipConfig, 0x04);
static constexpr Key kConfigKey_LastUsedEpochKeyId = config_key(kFileId_ChipConfig, 0x05);
static constexpr Key kConfigKey_FailSafeArmed = config_key(kFileId_ChipConfig, 0x06);
static constexpr Key kConfigKey_OperationalDeviceId = config_key(kFileId_ChipConfig, 0x07);
static constexpr Key kConfigKey_OperationalDeviceCert = config_key(kFileId_ChipConfig, 0x08);
static constexpr Key kConfigKey_OperationalDeviceICACerts = config_key(kFileId_ChipConfig, 0x09);
static constexpr Key kConfigKey_OperationalDevicePrivateKey = config_key(kFileId_ChipConfig, 0x0A);
static constexpr Key kConfigKey_RegulatoryLocation = config_key(kFileId_ChipConfig, 0x0B);
static constexpr Key kConfigKey_CountryCode = config_key(kFileId_ChipConfig, 0x0C);
static constexpr Key kConfigKey_Breadcrumb = config_key(kFileId_ChipConfig, 0x0D);
// CHIP Counter Keys
static constexpr Key kCounterKey_RebootCount = config_key(kFileId_ChipCounter, 0x00);
static constexpr Key kCounterKey_UpTime = config_key(kFileId_ChipCounter, 0x01);
static constexpr Key kCounterKey_TotalOperationalHours = config_key(kFileId_ChipCounter, 0x02);
static constexpr Key kCounterKey_BootReason = config_key(kFileId_ChipCounter, 0x03);
static constexpr Key kConfigKey_GroupKey = config_key(kFileId_ChipConfig, 0x0E);
static constexpr Key kConfigKey_GroupKey0 = config_key(kFileId_ChipConfig, 0x0F);
static constexpr Key kConfigKey_GroupKey1 = config_key(kFileId_ChipConfig, 0x10);
static constexpr Key kConfigKey_GroupKey2 = config_key(kFileId_ChipConfig, 0x11);
static constexpr Key kConfigKey_GroupKey3 = config_key(kFileId_ChipConfig, 0x12);
static constexpr Key kConfigKey_GroupKey4 = config_key(kFileId_ChipConfig, 0x13);
static constexpr Key kConfigKey_GroupKey5 = config_key(kFileId_ChipConfig, 0x14);
static constexpr Key kConfigKey_GroupKey6 = config_key(kFileId_ChipConfig, 0x15);
static constexpr Key kConfigKey_GroupKey7 = config_key(kFileId_ChipConfig, 0x16);
static constexpr Key kConfigKey_GroupKey8 = config_key(kFileId_ChipConfig, 0x17);
static constexpr Key kConfigKey_GroupKey9 = config_key(kFileId_ChipConfig, 0x18);
static constexpr Key kConfigKey_GroupKey10 = config_key(kFileId_ChipConfig, 0x19);
static constexpr Key kConfigKey_GroupKey11 = config_key(kFileId_ChipConfig, 0x1A);
static constexpr Key kConfigKey_GroupKey12 = config_key(kFileId_ChipConfig, 0x1B);
static constexpr Key kConfigKey_GroupKey13 = config_key(kFileId_ChipConfig, 0x1C);
static constexpr Key kConfigKey_GroupKey14 = config_key(kFileId_ChipConfig, 0x1D);
static constexpr Key kConfigKey_GroupKey15 = config_key(kFileId_ChipConfig, 0x1E);
static constexpr Key kConfigKey_GroupKeyBase = kConfigKey_GroupKey0;
static constexpr Key kConfigKey_GroupKeyMax = config_key(kFileId_ChipConfig, 0x1E);
; // Allows 16 Group Keys to be created.
// Set key id limits for each group.
static constexpr Key kMinConfigKey_ChipFactory = config_key(kFileId_ChipFactory, 0x00);
static constexpr Key kMaxConfigKey_ChipFactory = config_key(kFileId_ChipFactory, 0x08);
static constexpr Key kMinConfigKey_ChipConfig = config_key(kFileId_ChipConfig, 0x00);
static constexpr Key kMaxConfigKey_ChipConfig = config_key(kFileId_ChipConfig, 0x1E);
static constexpr Key kMinConfigKey_ChipCounter = config_key(kFileId_ChipCounter, 0x00);
static constexpr Key kMaxConfigKey_ChipCounter = config_key(kFileId_ChipCounter, 0x1F); // Allows 32 Counters to be created.
static constexpr Key kMinConfigKey_KVS = config_key(kFileId_KVS, 0x00);
static constexpr Key kMaxConfigKey_KVS = config_key(kFileId_KVS, 0xFF);
static CHIP_ERROR Init(void);
// Configuration methods used by the GenericConfigurationManagerImpl<> template.
static CHIP_ERROR ReadConfigValue(Key key, bool & val);
static CHIP_ERROR ReadConfigValue(Key key, uint32_t & val);
static CHIP_ERROR ReadConfigValue(Key key, uint64_t & val);
static CHIP_ERROR ReadConfigValueStr(Key key, char * buf, size_t bufSize, size_t & outLen);
static CHIP_ERROR ReadConfigValueBin(Key key, uint8_t * buf, size_t bufSize, size_t & outLen);
static CHIP_ERROR ReadConfigValueBin(const char * keyString, uint8_t * buf, size_t bufSize, size_t & outLen);
static CHIP_ERROR ReadConfigValueCounter(uint8_t counterIdx, uint32_t & val);
static CHIP_ERROR WriteConfigValue(Key key, bool val);
static CHIP_ERROR WriteConfigValue(Key key, uint32_t val);
static CHIP_ERROR WriteConfigValue(Key key, uint64_t val);
static CHIP_ERROR WriteConfigValueStr(Key key, const char * str);
static CHIP_ERROR WriteConfigValueStr(Key key, const char * str, size_t strLen);
static CHIP_ERROR WriteConfigValueBin(Key key, const uint8_t * data, size_t dataLen);
static CHIP_ERROR WriteConfigValueBin(const char * keyString, const uint8_t * data, size_t dataLen);
static CHIP_ERROR WriteConfigValueCounter(uint8_t counterIdx, uint32_t val);
static CHIP_ERROR ClearConfigValue(Key key);
static CHIP_ERROR ClearConfigValue(const char * keyString);
static bool ConfigValueExists(Key key);
static CHIP_ERROR FactoryResetConfig(void);
static bool ValidConfigKey(Key key);
static void RunConfigUnitTest(void);
static void RunSystemIdleTask(void);
private:
#if (CHIP_PLAT_NVM_SUPPORT == CHIP_PLAT_KEY_STORAGE)
static CHIP_ERROR MapKeyStorageStatus(ks_error_t ksStatus);
#else
static CHIP_ERROR MapRamStorageStatus(rsError rsStatus);
#endif
static int SaveIntKeysToFS(void);
static int SaveStringKeysToFS(void);
};
} // namespace Internal
} // namespace DeviceLayer
} // namespace chip