src/platform/android/AndroidConfig.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2020-2022 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 multiple file partitions and maps
  *          key-value config calls to the correct partition.
  */

 #include <cstdint>
 #include <cstring>
 #include <platform/internal/CHIPDeviceLayerInternal.h>
 #include <platform/internal/testing/ConfigUnitTest.h>

 #include <lib/core/CHIPEncoding.h>
 #include <lib/support/CHIPJNIError.h>
 #include <lib/support/CodeUtils.h>
 #include <lib/support/JniTypeWrappers.h>
 #include <platform/android/AndroidConfig.h>

 namespace chip {
 namespace DeviceLayer {
 namespace Internal {

 static jobject gAndroidConfigObject          = nullptr;
 static jmethodID gReadConfigValueLongMethod  = nullptr;
 static jmethodID gReadConfigValueStrMethod   = nullptr;
 static jmethodID gReadConfigValueBinMethod   = nullptr;
 static jmethodID gWriteConfigValueLongMethod = nullptr;
 static jmethodID gWriteConfigValueStrMethod  = nullptr;
 static jmethodID gWriteConfigValueBinMethod  = nullptr;
 static jmethodID gClearConfigValueMethod     = nullptr;
 static jmethodID gConfigValueExistsMethod    = nullptr;

 // *** CAUTION ***: Changing the names or namespaces of these values will *break* existing devices.

 // NVS namespaces used to store device configuration information.
 const char AndroidConfig::kConfigNamespace_ChipFactory[]  = "chip-factory";
 const char AndroidConfig::kConfigNamespace_ChipConfig[]   = "chip-config";
 const char AndroidConfig::kConfigNamespace_ChipCounters[] = "chip-counters";

 // Keys stored in the Chip-factory namespace
 const AndroidConfig::Key AndroidConfig::kConfigKey_SerialNum             = { kConfigNamespace_ChipFactory, "serial-num" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDeviceId           = { kConfigNamespace_ChipFactory, "device-id" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDeviceCert         = { kConfigNamespace_ChipFactory, "device-cert" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDeviceICACerts     = { kConfigNamespace_ChipFactory, "device-ca-certs" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDevicePrivateKey   = { kConfigNamespace_ChipFactory, "device-key" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_HardwareVersion       = { kConfigNamespace_ChipFactory, "hardware-ver" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_HardwareVersionString = { kConfigNamespace_ChipFactory, "hardware-ver-str" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_ManufacturingDate     = { kConfigNamespace_ChipFactory, "mfg-date" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_SetupPinCode          = { kConfigNamespace_ChipFactory, "pin-code" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_SetupDiscriminator    = { kConfigNamespace_ChipFactory, "discriminator" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_ProductId             = { kConfigNamespace_ChipFactory, "product-id" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_ProductName           = { kConfigNamespace_ChipFactory, "product-name" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_SoftwareVersion       = { kConfigNamespace_ChipFactory, "software-version" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_SoftwareVersionString = { kConfigNamespace_ChipFactory, "software-version-str" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_PartNumber            = { kConfigNamespace_ChipFactory, "part-number" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_ProductURL            = { kConfigNamespace_ChipFactory, "product-url" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_ProductLabel          = { kConfigNamespace_ChipFactory, "product-label" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_UniqueId              = { kConfigNamespace_ChipFactory, "uniqueId" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_Spake2pIterationCount = { kConfigNamespace_ChipFactory, "iteration-count" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_Spake2pSalt           = { kConfigNamespace_ChipFactory, "salt" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_Spake2pVerifier       = { kConfigNamespace_ChipFactory, "verifier" };

 // Keys stored in the Chip-config namespace
 const AndroidConfig::Key AndroidConfig::kConfigKey_ServiceConfig      = { kConfigNamespace_ChipConfig, "service-config" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_PairedAccountId    = { kConfigNamespace_ChipConfig, "account-id" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_ServiceId          = { kConfigNamespace_ChipConfig, "service-id" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_LastUsedEpochKeyId = { kConfigNamespace_ChipConfig, "last-ek-id" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_FailSafeArmed      = { kConfigNamespace_ChipConfig, "fail-safe-armed" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_WiFiStationSecType = { kConfigNamespace_ChipConfig, "sta-sec-type" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_RegulatoryLocation = { kConfigNamespace_ChipConfig, "regulatory-location" };
 const AndroidConfig::Key AndroidConfig::kConfigKey_CountryCode        = { kConfigNamespace_ChipConfig, "country-code" };

 void AndroidConfig::InitializeWithObject(jobject managerObject)
 {
     JNIEnv * env              = JniReferences::GetInstance().GetEnvForCurrentThread();
     gAndroidConfigObject      = env->NewGlobalRef(managerObject);
     jclass androidConfigClass = env->GetObjectClass(gAndroidConfigObject);
     VerifyOrReturn(androidConfigClass != nullptr, ChipLogError(DeviceLayer, "Failed to get KVS Java class"));

     gReadConfigValueLongMethod =
         env->GetMethodID(androidConfigClass, "readConfigValueLong", "(Ljava/lang/String;Ljava/lang/String;)J");
     if (gReadConfigValueLongMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'readConfigValueLong' method");
         env->ExceptionClear();
     }

     gReadConfigValueStrMethod =
         env->GetMethodID(androidConfigClass, "readConfigValueStr", "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
     if (gReadConfigValueStrMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'readConfigValueStr' method");
         env->ExceptionClear();
     }

     gReadConfigValueBinMethod =
         env->GetMethodID(androidConfigClass, "readConfigValueBin", "(Ljava/lang/String;Ljava/lang/String;)[B");
     if (gReadConfigValueBinMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'readConfigValueBin' method");
         env->ExceptionClear();
     }

     gWriteConfigValueLongMethod =
         env->GetMethodID(androidConfigClass, "writeConfigValueLong", "(Ljava/lang/String;Ljava/lang/String;J)V");
     if (gWriteConfigValueLongMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'writeConfigValueLong' method");
         env->ExceptionClear();
     }

     gWriteConfigValueStrMethod =
         env->GetMethodID(androidConfigClass, "writeConfigValueStr", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
     if (gWriteConfigValueStrMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'writeConfigValueStr' method");
         env->ExceptionClear();
     }

     gWriteConfigValueBinMethod =
         env->GetMethodID(androidConfigClass, "writeConfigValueBin", "(Ljava/lang/String;Ljava/lang/String;[B)V");
     if (gWriteConfigValueBinMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'writeConfigValueBin' method");
         env->ExceptionClear();
     }

     gClearConfigValueMethod = env->GetMethodID(androidConfigClass, "clearConfigValue", "(Ljava/lang/String;Ljava/lang/String;)V");
     if (gClearConfigValueMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'clearConfigValue' method");
         env->ExceptionClear();
     }

     gConfigValueExistsMethod = env->GetMethodID(androidConfigClass, "configValueExists", "(Ljava/lang/String;Ljava/lang/String;)Z");
     if (gConfigValueExistsMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'configValueExists' method");
         env->ExceptionClear();
     }
 }

 CHIP_ERROR AndroidConfig::Init()
 {
     CHIP_ERROR err = CHIP_NO_ERROR;
     return err;
 }

 CHIP_ERROR AndroidConfig::ReadConfigValue(Key key, bool & val)
 {
     uint64_t valuint64;
     CHIP_ERROR err = AndroidConfig::ReadConfigValue(key, valuint64);
     if (err == CHIP_NO_ERROR)
     {
         val = static_cast<bool>(valuint64);
     }

     return err;
 }

 CHIP_ERROR AndroidConfig::ReadConfigValue(Key key, uint32_t & val)
 {
     uint64_t valuint64;
     CHIP_ERROR err = AndroidConfig::ReadConfigValue(key, valuint64);
     if (err == CHIP_NO_ERROR)
     {
         val = static_cast<uint32_t>(valuint64);
     }

     return err;
 }

 CHIP_ERROR AndroidConfig::ReadConfigValue(Key key, uint64_t & val)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gReadConfigValueLongMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);

     jlong javaValue = env->CallLongMethod(gAndroidConfigObject, gReadConfigValueLongMethod, space.jniValue(), name.jniValue());
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::readConfigValueLong");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     val = static_cast<uint64_t>(javaValue);

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::ReadConfigValueStr(Key key, char * buf, size_t bufSize, size_t & outLen)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gReadConfigValueStrMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);

     jobject javaValue = env->CallObjectMethod(gAndroidConfigObject, gReadConfigValueStrMethod, space.jniValue(), name.jniValue());
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::ReadConfigValueStr");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     chip::JniUtfString utfValue(env, (jstring) javaValue);
     outLen = strlen(utfValue.c_str());

     strncpy(buf, utfValue.c_str(), bufSize);

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::ReadConfigValueBin(Key key, uint8_t * buf, size_t bufSize, size_t & outLen)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gReadConfigValueBinMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);

     jbyteArray javaValue = static_cast<jbyteArray>(
         env->CallObjectMethod(gAndroidConfigObject, gReadConfigValueBinMethod, space.jniValue(), name.jniValue()));
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::ReadConfigValueBin");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     jbyte * elements = env->GetByteArrayElements(javaValue, NULL);
     if (elements == NULL)
     {
         ChipLogError(DeviceLayer, "AndroidConfig::ReadConfigValueBin got null");
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     outLen = static_cast<size_t>(env->GetArrayLength(javaValue));
     memcpy(buf, elements, min(outLen, bufSize));

     env->ReleaseByteArrayElements(javaValue, elements, 0);

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::WriteConfigValue(Key key, bool val)
 {
     return AndroidConfig::WriteConfigValue(key, static_cast<uint64_t>(val));
 }

 CHIP_ERROR AndroidConfig::WriteConfigValue(Key key, uint32_t val)
 {
     return AndroidConfig::WriteConfigValue(key, static_cast<uint64_t>(val));
 }

 CHIP_ERROR AndroidConfig::WriteConfigValue(Key key, uint64_t val)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gWriteConfigValueLongMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);
     jlong jval = static_cast<jlong>(val);

     env->CallVoidMethod(gAndroidConfigObject, gWriteConfigValueLongMethod, space.jniValue(), name.jniValue(), jval);
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::readConfigValueLong");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::WriteConfigValueStr(Key key, const char * str)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gWriteConfigValueStrMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);
     UtfString val(env, str);

     env->CallVoidMethod(gAndroidConfigObject, gWriteConfigValueStrMethod, space.jniValue(), name.jniValue(), val.jniValue());
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gWriteConfigValueStrMethod");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::WriteConfigValueStr(Key key, const char * str, size_t strLen)
 {
 #if CHIP_CONFIG_MEMORY_MGMT_MALLOC
     CHIP_ERROR err;
     char * strCopy = nullptr;

     if (str != nullptr)
     {
         strCopy = strndup(str, strLen);
         VerifyOrExit(strCopy != nullptr, err = CHIP_ERROR_NO_MEMORY);
     }

     err = AndroidConfig::WriteConfigValueStr(key, strCopy);

 exit:
     if (strCopy != nullptr)
     {
         free(strCopy);
     }
     return err;
 #else
 #error "Unsupported CHIP_CONFIG_MEMORY_MGMT configuration"
 #endif
 }

 CHIP_ERROR AndroidConfig::WriteConfigValueBin(Key key, const uint8_t * data, size_t dataLen)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gWriteConfigValueBinMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);
     ByteArray jval(env, reinterpret_cast<const jbyte *>(data), dataLen);

     env->CallVoidMethod(gAndroidConfigObject, gWriteConfigValueBinMethod, space.jniValue(), name.jniValue(), jval.jniValue());
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gWriteConfigValueBinMethod");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::ClearConfigValue(Key key)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
     ReturnErrorCodeIf(gClearConfigValueMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);

     env->CallVoidMethod(gAndroidConfigObject, gClearConfigValueMethod, space.jniValue(), name.jniValue());
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gClearConfigValueMethod");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
     }

     return CHIP_NO_ERROR;
 }

 bool AndroidConfig::ConfigValueExists(Key key)
 {
     chip::DeviceLayer::StackUnlock unlock;
     ReturnErrorCodeIf(gAndroidConfigObject == nullptr, false);
     ReturnErrorCodeIf(gConfigValueExistsMethod == nullptr, false);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     ReturnErrorCodeIf(env == nullptr, false);

     UtfString space(env, key.Namespace);
     UtfString name(env, key.Name);

     jboolean jvalue = env->CallBooleanMethod(gAndroidConfigObject, gConfigValueExistsMethod, space.jniValue(), name.jniValue());
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gConfigValueExistsMethod");
         env->ExceptionDescribe();
         env->ExceptionClear();
         return false;
     }

     return static_cast<bool>(jvalue);
 }

 CHIP_ERROR AndroidConfig::EnsureNamespace(const char * ns)
 {
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AndroidConfig::ClearNamespace(const char * ns)
 {
     const AndroidConfig::Key key = { ns, nullptr };
     return AndroidConfig::ClearConfigValue(key);
 }

 CHIP_ERROR AndroidConfig::FactoryResetConfig()
 {
     const AndroidConfig::Key key = { AndroidConfig::kConfigNamespace_ChipConfig, nullptr };
     return AndroidConfig::ClearConfigValue(key);
 }

 void AndroidConfig::RunConfigUnitTest()
 {
     // Run common unit test.
     ::chip::DeviceLayer::Internal::RunConfigUnitTest<AndroidConfig>();
 }

 } // namespace Internal
 } // namespace DeviceLayer
 } // namespace chip
	/*
	*
	* Copyright (c) 2020-2022 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 multiple file partitions and maps
	* key-value config calls to the correct partition.
	*/

	#include <cstdint>
	#include <cstring>
	#include <platform/internal/CHIPDeviceLayerInternal.h>
	#include <platform/internal/testing/ConfigUnitTest.h>

	#include <lib/core/CHIPEncoding.h>
	#include <lib/support/CHIPJNIError.h>
	#include <lib/support/CodeUtils.h>
	#include <lib/support/JniTypeWrappers.h>
	#include <platform/android/AndroidConfig.h>

	namespace chip {
	namespace DeviceLayer {
	namespace Internal {

	static jobject gAndroidConfigObject = nullptr;
	static jmethodID gReadConfigValueLongMethod = nullptr;
	static jmethodID gReadConfigValueStrMethod = nullptr;
	static jmethodID gReadConfigValueBinMethod = nullptr;
	static jmethodID gWriteConfigValueLongMethod = nullptr;
	static jmethodID gWriteConfigValueStrMethod = nullptr;
	static jmethodID gWriteConfigValueBinMethod = nullptr;
	static jmethodID gClearConfigValueMethod = nullptr;
	static jmethodID gConfigValueExistsMethod = nullptr;

	// * CAUTION : Changing the names or namespaces of these values will break* existing devices.

	// NVS namespaces used to store device configuration information.
	const char AndroidConfig::kConfigNamespace_ChipFactory[] = "chip-factory";
	const char AndroidConfig::kConfigNamespace_ChipConfig[] = "chip-config";
	const char AndroidConfig::kConfigNamespace_ChipCounters[] = "chip-counters";

	// Keys stored in the Chip-factory namespace
	const AndroidConfig::Key AndroidConfig::kConfigKey_SerialNum = { kConfigNamespace_ChipFactory, "serial-num" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDeviceId = { kConfigNamespace_ChipFactory, "device-id" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDeviceCert = { kConfigNamespace_ChipFactory, "device-cert" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDeviceICACerts = { kConfigNamespace_ChipFactory, "device-ca-certs" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_MfrDevicePrivateKey = { kConfigNamespace_ChipFactory, "device-key" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_HardwareVersion = { kConfigNamespace_ChipFactory, "hardware-ver" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_HardwareVersionString = { kConfigNamespace_ChipFactory, "hardware-ver-str" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_ManufacturingDate = { kConfigNamespace_ChipFactory, "mfg-date" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_SetupPinCode = { kConfigNamespace_ChipFactory, "pin-code" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_SetupDiscriminator = { kConfigNamespace_ChipFactory, "discriminator" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_ProductId = { kConfigNamespace_ChipFactory, "product-id" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_ProductName = { kConfigNamespace_ChipFactory, "product-name" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_SoftwareVersion = { kConfigNamespace_ChipFactory, "software-version" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_SoftwareVersionString = { kConfigNamespace_ChipFactory, "software-version-str" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_PartNumber = { kConfigNamespace_ChipFactory, "part-number" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_ProductURL = { kConfigNamespace_ChipFactory, "product-url" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_ProductLabel = { kConfigNamespace_ChipFactory, "product-label" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_UniqueId = { kConfigNamespace_ChipFactory, "uniqueId" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_Spake2pIterationCount = { kConfigNamespace_ChipFactory, "iteration-count" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_Spake2pSalt = { kConfigNamespace_ChipFactory, "salt" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_Spake2pVerifier = { kConfigNamespace_ChipFactory, "verifier" };

	// Keys stored in the Chip-config namespace
	const AndroidConfig::Key AndroidConfig::kConfigKey_ServiceConfig = { kConfigNamespace_ChipConfig, "service-config" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_PairedAccountId = { kConfigNamespace_ChipConfig, "account-id" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_ServiceId = { kConfigNamespace_ChipConfig, "service-id" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_LastUsedEpochKeyId = { kConfigNamespace_ChipConfig, "last-ek-id" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_FailSafeArmed = { kConfigNamespace_ChipConfig, "fail-safe-armed" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_WiFiStationSecType = { kConfigNamespace_ChipConfig, "sta-sec-type" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_RegulatoryLocation = { kConfigNamespace_ChipConfig, "regulatory-location" };
	const AndroidConfig::Key AndroidConfig::kConfigKey_CountryCode = { kConfigNamespace_ChipConfig, "country-code" };

	void AndroidConfig::InitializeWithObject(jobject managerObject)
	{
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	gAndroidConfigObject = env->NewGlobalRef(managerObject);
	jclass androidConfigClass = env->GetObjectClass(gAndroidConfigObject);
	VerifyOrReturn(androidConfigClass != nullptr, ChipLogError(DeviceLayer, "Failed to get KVS Java class"));

	gReadConfigValueLongMethod =
	env->GetMethodID(androidConfigClass, "readConfigValueLong", "(Ljava/lang/String;Ljava/lang/String;)J");
	if (gReadConfigValueLongMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'readConfigValueLong' method");
	env->ExceptionClear();
	}

	gReadConfigValueStrMethod =
	env->GetMethodID(androidConfigClass, "readConfigValueStr", "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
	if (gReadConfigValueStrMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'readConfigValueStr' method");
	env->ExceptionClear();
	}

	gReadConfigValueBinMethod =
	env->GetMethodID(androidConfigClass, "readConfigValueBin", "(Ljava/lang/String;Ljava/lang/String;)[B");
	if (gReadConfigValueBinMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'readConfigValueBin' method");
	env->ExceptionClear();
	}

	gWriteConfigValueLongMethod =
	env->GetMethodID(androidConfigClass, "writeConfigValueLong", "(Ljava/lang/String;Ljava/lang/String;J)V");
	if (gWriteConfigValueLongMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'writeConfigValueLong' method");
	env->ExceptionClear();
	}

	gWriteConfigValueStrMethod =
	env->GetMethodID(androidConfigClass, "writeConfigValueStr", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
	if (gWriteConfigValueStrMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'writeConfigValueStr' method");
	env->ExceptionClear();
	}

	gWriteConfigValueBinMethod =
	env->GetMethodID(androidConfigClass, "writeConfigValueBin", "(Ljava/lang/String;Ljava/lang/String;[B)V");
	if (gWriteConfigValueBinMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'writeConfigValueBin' method");
	env->ExceptionClear();
	}

	gClearConfigValueMethod = env->GetMethodID(androidConfigClass, "clearConfigValue", "(Ljava/lang/String;Ljava/lang/String;)V");
	if (gClearConfigValueMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'clearConfigValue' method");
	env->ExceptionClear();
	}

	gConfigValueExistsMethod = env->GetMethodID(androidConfigClass, "configValueExists", "(Ljava/lang/String;Ljava/lang/String;)Z");
	if (gConfigValueExistsMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access AndroidConfig 'configValueExists' method");
	env->ExceptionClear();
	}
	}

	CHIP_ERROR AndroidConfig::Init()
	{
	CHIP_ERROR err = CHIP_NO_ERROR;
	return err;
	}

	CHIP_ERROR AndroidConfig::ReadConfigValue(Key key, bool & val)
	{
	uint64_t valuint64;
	CHIP_ERROR err = AndroidConfig::ReadConfigValue(key, valuint64);
	if (err == CHIP_NO_ERROR)
	{
	val = static_cast<bool>(valuint64);
	}

	return err;
	}

	CHIP_ERROR AndroidConfig::ReadConfigValue(Key key, uint32_t & val)
	{
	uint64_t valuint64;
	CHIP_ERROR err = AndroidConfig::ReadConfigValue(key, valuint64);
	if (err == CHIP_NO_ERROR)
	{
	val = static_cast<uint32_t>(valuint64);
	}

	return err;
	}

	CHIP_ERROR AndroidConfig::ReadConfigValue(Key key, uint64_t & val)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gReadConfigValueLongMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);

	jlong javaValue = env->CallLongMethod(gAndroidConfigObject, gReadConfigValueLongMethod, space.jniValue(), name.jniValue());
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::readConfigValueLong");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	val = static_cast<uint64_t>(javaValue);

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::ReadConfigValueStr(Key key, char * buf, size_t bufSize, size_t & outLen)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gReadConfigValueStrMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);

	jobject javaValue = env->CallObjectMethod(gAndroidConfigObject, gReadConfigValueStrMethod, space.jniValue(), name.jniValue());
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::ReadConfigValueStr");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	chip::JniUtfString utfValue(env, (jstring) javaValue);
	outLen = strlen(utfValue.c_str());

	strncpy(buf, utfValue.c_str(), bufSize);

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::ReadConfigValueBin(Key key, uint8_t * buf, size_t bufSize, size_t & outLen)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gReadConfigValueBinMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);

	jbyteArray javaValue = static_cast<jbyteArray>(
	env->CallObjectMethod(gAndroidConfigObject, gReadConfigValueBinMethod, space.jniValue(), name.jniValue()));
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::ReadConfigValueBin");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	jbyte * elements = env->GetByteArrayElements(javaValue, NULL);
	if (elements == NULL)
	{
	ChipLogError(DeviceLayer, "AndroidConfig::ReadConfigValueBin got null");
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	outLen = static_cast<size_t>(env->GetArrayLength(javaValue));
	memcpy(buf, elements, min(outLen, bufSize));

	env->ReleaseByteArrayElements(javaValue, elements, 0);

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::WriteConfigValue(Key key, bool val)
	{
	return AndroidConfig::WriteConfigValue(key, static_cast<uint64_t>(val));
	}

	CHIP_ERROR AndroidConfig::WriteConfigValue(Key key, uint32_t val)
	{
	return AndroidConfig::WriteConfigValue(key, static_cast<uint64_t>(val));
	}

	CHIP_ERROR AndroidConfig::WriteConfigValue(Key key, uint64_t val)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gWriteConfigValueLongMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);
	jlong jval = static_cast<jlong>(val);

	env->CallVoidMethod(gAndroidConfigObject, gWriteConfigValueLongMethod, space.jniValue(), name.jniValue(), jval);
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::readConfigValueLong");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::WriteConfigValueStr(Key key, const char * str)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gWriteConfigValueStrMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);
	UtfString val(env, str);

	env->CallVoidMethod(gAndroidConfigObject, gWriteConfigValueStrMethod, space.jniValue(), name.jniValue(), val.jniValue());
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gWriteConfigValueStrMethod");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::WriteConfigValueStr(Key key, const char * str, size_t strLen)
	{
	#if CHIP_CONFIG_MEMORY_MGMT_MALLOC
	CHIP_ERROR err;
	char * strCopy = nullptr;

	if (str != nullptr)
	{
	strCopy = strndup(str, strLen);
	VerifyOrExit(strCopy != nullptr, err = CHIP_ERROR_NO_MEMORY);
	}

	err = AndroidConfig::WriteConfigValueStr(key, strCopy);

	exit:
	if (strCopy != nullptr)
	{
	free(strCopy);
	}
	return err;
	#else
	#error "Unsupported CHIP_CONFIG_MEMORY_MGMT configuration"
	#endif
	}

	CHIP_ERROR AndroidConfig::WriteConfigValueBin(Key key, const uint8_t * data, size_t dataLen)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gWriteConfigValueBinMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);
	ByteArray jval(env, reinterpret_cast<const jbyte *>(data), dataLen);

	env->CallVoidMethod(gAndroidConfigObject, gWriteConfigValueBinMethod, space.jniValue(), name.jniValue(), jval.jniValue());
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gWriteConfigValueBinMethod");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::ClearConfigValue(Key key)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, CHIP_ERROR_INCORRECT_STATE);
	ReturnErrorCodeIf(gClearConfigValueMethod == nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, CHIP_ERROR_INTERNAL);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);

	env->CallVoidMethod(gAndroidConfigObject, gClearConfigValueMethod, space.jniValue(), name.jniValue());
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gClearConfigValueMethod");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
	}

	return CHIP_NO_ERROR;
	}

	bool AndroidConfig::ConfigValueExists(Key key)
	{
	chip::DeviceLayer::StackUnlock unlock;
	ReturnErrorCodeIf(gAndroidConfigObject == nullptr, false);
	ReturnErrorCodeIf(gConfigValueExistsMethod == nullptr, false);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	ReturnErrorCodeIf(env == nullptr, false);

	UtfString space(env, key.Namespace);
	UtfString name(env, key.Name);

	jboolean jvalue = env->CallBooleanMethod(gAndroidConfigObject, gConfigValueExistsMethod, space.jniValue(), name.jniValue());
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in AndroidConfig::gConfigValueExistsMethod");
	env->ExceptionDescribe();
	env->ExceptionClear();
	return false;
	}

	return static_cast<bool>(jvalue);
	}

	CHIP_ERROR AndroidConfig::EnsureNamespace(const char * ns)
	{
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AndroidConfig::ClearNamespace(const char * ns)
	{
	const AndroidConfig::Key key = { ns, nullptr };
	return AndroidConfig::ClearConfigValue(key);
	}

	CHIP_ERROR AndroidConfig::FactoryResetConfig()
	{
	const AndroidConfig::Key key = { AndroidConfig::kConfigNamespace_ChipConfig, nullptr };
	return AndroidConfig::ClearConfigValue(key);
	}

	void AndroidConfig::RunConfigUnitTest()
	{
	// Run common unit test.
	::chip::DeviceLayer::Internal::RunConfigUnitTest<AndroidConfig>();
	}

	} // namespace Internal
	} // namespace DeviceLayer
	} // namespace chip