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/*
*
* Copyright (c) 2021-2022 Project CHIP Authors
* Copyright (c) 2019-2020 Google LLC.
* Copyright (c) 2018 Nest Labs, Inc.
* 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.
*/
/**
* @file
* Utilities for interacting with the the ASR key-value store.
*/
#pragma once
#include "ASRFactoryDataParser.h"
#include <string.h>
namespace chip {
namespace DeviceLayer {
namespace Internal {
/**
* Provides functions and definitions for accessing device configuration information on the ASR.
*
* This class is designed to be mixed-in to concrete implementation classes as a means to
* provide access to configuration information to generic base classes.
*/
class ASRConfig
{
public:
struct Key;
// Maximum length of a key name
static constexpr size_t kMaxConfigKeyNameLength = 128;
// Namespaces used to store device configuration information.
static const char kConfigNamespace_ChipFactory[];
static const char kConfigNamespace_ChipConfig[];
static const char kConfigNamespace_ChipCounters[];
// Key definitions for well-known keys.
static const Key kConfigKey_SerialNum;
static const Key kConfigKey_UniqueId;
static const Key kConfigKey_MfrDeviceId;
static const Key kConfigKey_MfrDeviceCert;
static const Key kConfigKey_MfrDeviceICACerts;
static const Key kConfigKey_MfrDevicePrivateKey;
static const Key kConfigKey_SoftwareVersion;
static const Key kConfigKey_HardwareVersion;
static const Key kConfigKey_ManufacturingDate;
static const Key kConfigKey_ServiceConfig;
static const Key kConfigKey_PairedAccountId;
static const Key kConfigKey_ServiceId;
static const Key kConfigKey_LastUsedEpochKeyId;
static const Key kConfigKey_FailSafeArmed;
static const Key kConfigKey_WiFiStationSecType;
static const Key kConfigKey_RegulatoryLocation;
static const Key kConfigKey_CountryCode;
static const Key kConfigKey_WiFiSSID;
static const Key kConfigKey_WiFiPassword;
static const Key kConfigKey_WiFiSecurity;
static const Key kConfigKey_WiFiMode;
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
static const Key kConfigKey_SetupPinCode;
static const Key kConfigKey_SetupDiscriminator;
static const Key kConfigKey_Spake2pIterationCount;
static const Key kConfigKey_Spake2pSalt;
static const Key kConfigKey_Spake2pVerifier;
static const Key kConfigKey_DACCert;
static const Key kConfigKey_DACPrivateKey;
static const Key kConfigKey_DACPublicKey;
static const Key kConfigKey_PAICert;
static const Key kConfigKey_CertDeclaration;
#endif
// CHIP Counter keys
static const Key kCounterKey_RebootCount;
static const Key kCounterKey_UpTime;
static const Key kCounterKey_TotalOperationalHours;
// Config value accessors.
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 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 ClearConfigValue(Key key);
static bool ConfigValueExists(Key key);
#if CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
static CHIP_ERROR ReadFactoryConfigValue(asr_matter_partition_t matter_partition, uint8_t * buf, size_t bufSize,
size_t & outLen);
static CHIP_ERROR ReadFactoryConfigValue(asr_matter_partition_t matter_partition, uint32_t & val);
#endif
static CHIP_ERROR FactoryResetConfig(void);
static void RunConfigUnitTest(void);
};
struct ASRConfig::Key
{
const char * Namespace;
const char * Name;
CHIP_ERROR to_str(char * buf, size_t buf_size) const;
size_t len() const;
bool operator==(const Key & other) const;
};
inline CHIP_ERROR ASRConfig::Key::to_str(char * buf, size_t buf_size) const
{
if (buf_size < len() + 1)
{
return CHIP_ERROR_BUFFER_TOO_SMALL;
}
strcpy(buf, Namespace);
strcat(buf, ";");
strcat(buf, Name);
return CHIP_NO_ERROR;
}
// Length of key str (not including terminating null char)
inline size_t ASRConfig::Key::len() const
{
// + 1 for separating ';'
size_t out_size = strlen(Namespace) + strlen(Name) + 1;
return out_size;
}
inline bool ASRConfig::Key::operator==(const Key & other) const
{
return strcmp(Namespace, other.Namespace) == 0 && strcmp(Name, other.Name) == 0;
}
} // namespace Internal
} // namespace DeviceLayer
} // namespace chip