src/platform/Ameba/NetworkCommissioningWiFiDriver.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2021 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.
  */

 #include <lib/support/CodeUtils.h>
 #include <lib/support/SafeInt.h>
 #include <platform/Ameba/AmebaUtils.h>
 #include <platform/Ameba/NetworkCommissioningDriver.h>
 #include <platform/CHIPDeviceLayer.h>

 #include <limits>
 #include <string>

 extern uint32_t apNum;
 using namespace ::chip;

 namespace chip {
 namespace DeviceLayer {
 namespace NetworkCommissioning {

 CHIP_ERROR AmebaWiFiDriver::Init(NetworkStatusChangeCallback * networkStatusChangeCallback)
 {
     CHIP_ERROR err;
     size_t ssidLen         = 0;
     size_t credentialsLen  = 0;
     mpScanCallback         = nullptr;
     mpConnectCallback      = nullptr;
     mpStatusChangeCallback = networkStatusChangeCallback;

     rtw_wifi_config_t config = { 0 };
     err                      = chip::DeviceLayer::Internal::AmebaUtils::GetWiFiConfig(&config);
     if (err == CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND)
     {
         return CHIP_NO_ERROR;
     }

     memcpy(mSavedNetwork.ssid, config.ssid, sizeof(config.ssid));
     memcpy(mSavedNetwork.credentials, config.password, sizeof(config.password));
     mSavedNetwork.ssidLen        = config.ssid_len;
     mSavedNetwork.credentialsLen = config.password_len;

     mStagingNetwork = mSavedNetwork;
     return err;
 }

 void AmebaWiFiDriver::Shutdown()
 {
     mpStatusChangeCallback = nullptr;
 }

 CHIP_ERROR AmebaWiFiDriver::CommitConfiguration()
 {
     rtw_wifi_config_t config = { 0 };
     memcpy(config.ssid, mStagingNetwork.ssid, mStagingNetwork.ssidLen);
     memcpy(config.password, mStagingNetwork.credentials, mStagingNetwork.credentialsLen);
     ReturnErrorOnFailure(chip::DeviceLayer::Internal::AmebaUtils::SetWiFiConfig(&config));

     mSavedNetwork = mStagingNetwork;
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR AmebaWiFiDriver::RevertConfiguration()
 {
     mStagingNetwork = mSavedNetwork;
     return CHIP_NO_ERROR;
 }

 bool AmebaWiFiDriver::NetworkMatch(const WiFiNetwork & network, ByteSpan networkId)
 {
     return networkId.size() == network.ssidLen && memcmp(networkId.data(), network.ssid, network.ssidLen) == 0;
 }

 Status AmebaWiFiDriver::AddOrUpdateNetwork(ByteSpan ssid, ByteSpan credentials, MutableCharSpan & outDebugText,
                                            uint8_t & outNetworkIndex)
 {
     outDebugText.reduce_size(0);
     outNetworkIndex = 0;
     VerifyOrReturnError(mStagingNetwork.ssidLen == 0 || NetworkMatch(mStagingNetwork, ssid), Status::kBoundsExceeded);
     VerifyOrReturnError(credentials.size() <= sizeof(mStagingNetwork.credentials), Status::kOutOfRange);
     VerifyOrReturnError(ssid.size() <= sizeof(mStagingNetwork.ssid), Status::kOutOfRange);

     mStagingNetwork = {};
     memcpy(mStagingNetwork.credentials, credentials.data(), credentials.size());
     mStagingNetwork.credentialsLen = static_cast<decltype(mStagingNetwork.credentialsLen)>(credentials.size());

     memcpy(mStagingNetwork.ssid, ssid.data(), ssid.size());
     mStagingNetwork.ssidLen = static_cast<decltype(mStagingNetwork.ssidLen)>(ssid.size());

     return Status::kSuccess;
 }

 Status AmebaWiFiDriver::RemoveNetwork(ByteSpan networkId, MutableCharSpan & outDebugText, uint8_t & outNetworkIndex)
 {
     outDebugText.reduce_size(0);
     outNetworkIndex = 0;
     VerifyOrReturnError(NetworkMatch(mStagingNetwork, networkId), Status::kNetworkIDNotFound);

     // Use empty ssid for representing invalid network
     mStagingNetwork         = {};
     mStagingNetwork.ssidLen = 0;
     return Status::kSuccess;
 }

 Status AmebaWiFiDriver::ReorderNetwork(ByteSpan networkId, uint8_t index, MutableCharSpan & outDebugText)
 {
     outDebugText.reduce_size(0);
     // Only one network is supported now
     VerifyOrReturnError(index == 0, Status::kOutOfRange);
     VerifyOrReturnError(NetworkMatch(mStagingNetwork, networkId), Status::kNetworkIDNotFound);
     return Status::kSuccess;
 }

 CHIP_ERROR AmebaWiFiDriver::ConnectWiFiNetwork(const char * ssid, uint8_t ssidLen, const char * key, uint8_t keyLen)
 {
     CHIP_ERROR err = CHIP_NO_ERROR;
     // If device is already connected to WiFi, then disconnect the WiFi,
     // clear the WiFi configurations and add the newly provided WiFi configurations.
     if (chip::DeviceLayer::Internal::AmebaUtils::IsStationProvisioned())
     {
         ChipLogProgress(DeviceLayer, "Disconnecting WiFi station interface");
         err = chip::DeviceLayer::Internal::AmebaUtils::WiFiDisconnect();
         if (err != CHIP_NO_ERROR)
         {
             ChipLogError(DeviceLayer, "WiFiDisconnect() failed");
             return err;
         }
         err = chip::DeviceLayer::Internal::AmebaUtils::ClearWiFiConfig();
         if (err != CHIP_NO_ERROR)
         {
             ChipLogError(DeviceLayer, "ClearWiFiStationProvision failed");
             return err;
         }
     }

     ReturnErrorOnFailure(ConnectivityMgr().SetWiFiStationMode(ConnectivityManager::kWiFiStationMode_Disabled));

     rtw_wifi_config_t wifiConfig;

     // Set the wifi configuration
     memset(&wifiConfig, 0, sizeof(wifiConfig));
     memcpy(wifiConfig.ssid, ssid, ssidLen + 1);
     memcpy(wifiConfig.password, key, keyLen + 1);

     // Configure the WiFi interface.
     err = chip::DeviceLayer::Internal::AmebaUtils::SetWiFiConfig(&wifiConfig);
     if (err != CHIP_NO_ERROR)
     {
         ChipLogError(DeviceLayer, "SetWiFiConfig() failed");
         return err;
     }

     ReturnErrorOnFailure(ConnectivityMgr().SetWiFiStationMode(ConnectivityManager::kWiFiStationMode_Disabled));
     return ConnectivityMgr().SetWiFiStationMode(ConnectivityManager::kWiFiStationMode_Enabled);
 }

 void AmebaWiFiDriver::OnConnectWiFiNetwork()
 {
     if (mpConnectCallback)
     {
         mpConnectCallback->OnResult(Status::kSuccess, CharSpan(), 0);
         mpConnectCallback = nullptr;
     }
 }

 void AmebaWiFiDriver::ConnectNetwork(ByteSpan networkId, ConnectCallback * callback)
 {
     CHIP_ERROR err          = CHIP_NO_ERROR;
     Status networkingStatus = Status::kSuccess;

     VerifyOrExit(NetworkMatch(mStagingNetwork, networkId), networkingStatus = Status::kNetworkIDNotFound);
     VerifyOrExit(mpConnectCallback == nullptr, networkingStatus = Status::kUnknownError);
     ChipLogProgress(NetworkProvisioning, "Ameba NetworkCommissioningDelegate: SSID: %s", mStagingNetwork.ssid);

     err               = ConnectWiFiNetwork(reinterpret_cast<const char *>(mStagingNetwork.ssid), mStagingNetwork.ssidLen,
                              reinterpret_cast<const char *>(mStagingNetwork.credentials), mStagingNetwork.credentialsLen);
     mpConnectCallback = callback;
 exit:
     if (err != CHIP_NO_ERROR)
     {
         networkingStatus = Status::kUnknownError;
     }
     if (networkingStatus != Status::kSuccess)
     {
         ChipLogError(NetworkProvisioning, "Failed to connect to WiFi network:%s", chip::ErrorStr(err));
         mpConnectCallback = nullptr;
         callback->OnResult(networkingStatus, CharSpan(), 0);
     }
 }

 CHIP_ERROR AmebaWiFiDriver::StartScanWiFiNetworks(ByteSpan ssid)
 {
     if (!ssid.empty()) // ssid is given, only scan this network
     {
         matter_scan_networks_with_ssid(ssid.data(), ssid.size());
     }
     else // scan all networks
     {
         matter_scan_networks();
     }
     return CHIP_NO_ERROR;
 }

 void AmebaWiFiDriver::OnScanWiFiNetworkDone()
 {
     uint16_t NumAP = apNum;
     apNum          = 0;
     if (!NumAP)
     {
         ChipLogProgress(DeviceLayer, "No AP found");
         if (mpScanCallback != nullptr)
         {
             mpScanCallback->OnFinished(Status::kSuccess, CharSpan(), nullptr);
             mpScanCallback = nullptr;
         }
         return;
     }

     rtw_scan_result_t * ScanResult = (rtw_scan_result *) pvPortMalloc(NumAP * sizeof(rtw_scan_result));
     matter_get_scan_results(ScanResult, NumAP);

     if (ScanResult)
     {
         if (CHIP_NO_ERROR == DeviceLayer::SystemLayer().ScheduleLambda([NumAP, ScanResult]() {
                 AmebaScanResponseIterator iter(NumAP, ScanResult);
                 if (GetInstance().mpScanCallback)
                 {
                     GetInstance().mpScanCallback->OnFinished(Status::kSuccess, CharSpan(), &iter);
                     GetInstance().mpScanCallback = nullptr;
                 }
                 else
                 {
                     ChipLogError(DeviceLayer, "can't find the ScanCallback function");
                 }
             }))
         {
             ChipLogProgress(DeviceLayer, "ScheduleLambda OK");
         }
     }
     else
     {
         ChipLogError(DeviceLayer, "can't get ap_records ");
         if (mpScanCallback)
         {
             mpScanCallback->OnFinished(Status::kUnknownError, CharSpan(), nullptr);
             mpScanCallback = nullptr;
         }
     }
     vPortFree(ScanResult);
 }

 CHIP_ERROR GetConfiguredNetwork(Network & network)
 {
     rtw_wifi_setting_t wifi_setting;
     wifi_get_setting(WLAN0_NAME, &wifi_setting);

     uint8_t length = strnlen(reinterpret_cast<const char *>(wifi_setting.ssid), DeviceLayer::Internal::kMaxWiFiSSIDLength);
     if (length > sizeof(network.networkID))
     {
         ChipLogError(DeviceLayer, "SSID too long");
         return CHIP_ERROR_INTERNAL;
     }

     memcpy(network.networkID, wifi_setting.ssid, length);
     network.networkIDLen = length;
     return CHIP_NO_ERROR;
 }

 void AmebaWiFiDriver::OnNetworkStatusChange()
 {
     Network configuredNetwork;
     bool staEnabled = false, staConnected = false;
     VerifyOrReturn(chip::DeviceLayer::Internal::AmebaUtils::IsStationEnabled(staEnabled) == CHIP_NO_ERROR);
     VerifyOrReturn(staEnabled && mpStatusChangeCallback != nullptr);

     CHIP_ERROR err = GetConfiguredNetwork(configuredNetwork);
     if (err != CHIP_NO_ERROR)
     {
         ChipLogError(DeviceLayer, "Failed to get configured network when updating network status: %s", err.AsString());
         return;
     }

     VerifyOrReturn(chip::DeviceLayer::Internal::AmebaUtils::IsStationConnected(staConnected) == CHIP_NO_ERROR);
     if (staConnected)
     {
         mpStatusChangeCallback->OnNetworkingStatusChange(
             Status::kSuccess, MakeOptional(ByteSpan(configuredNetwork.networkID, configuredNetwork.networkIDLen)), NullOptional);
         return;
     }
     mpStatusChangeCallback->OnNetworkingStatusChange(
         Status::kUnknownError, MakeOptional(ByteSpan(configuredNetwork.networkID, configuredNetwork.networkIDLen)),
         MakeOptional(GetLastDisconnectReason()));
 }

 void AmebaWiFiDriver::ScanNetworks(ByteSpan ssid, WiFiDriver::ScanCallback * callback)
 {
     if (callback != nullptr)
     {
         mpScanCallback = callback;
         if (StartScanWiFiNetworks(ssid) != CHIP_NO_ERROR)
         {
             mpScanCallback = nullptr;
             callback->OnFinished(Status::kUnknownError, CharSpan(), nullptr);
         }
     }
 }

 CHIP_ERROR AmebaWiFiDriver::SetLastDisconnectReason(const ChipDeviceEvent * event)
 {
     VerifyOrReturnError(event->Type == DeviceEventType::kRtkWiFiStationDisconnectedEvent, CHIP_ERROR_INVALID_ARGUMENT);
     mLastDisconnectedReason = wifi_get_last_error();
     return CHIP_NO_ERROR;
 }

 int32_t AmebaWiFiDriver::GetLastDisconnectReason()
 {
     return mLastDisconnectedReason;
 }

 size_t AmebaWiFiDriver::WiFiNetworkIterator::Count()
 {
     return mDriver->mStagingNetwork.ssidLen == 0 ? 0 : 1;
 }

 bool AmebaWiFiDriver::WiFiNetworkIterator::Next(Network & item)
 {
     if (mExhausted || mDriver->mStagingNetwork.ssidLen == 0)
     {
         return false;
     }
     memcpy(item.networkID, mDriver->mStagingNetwork.ssid, mDriver->mStagingNetwork.ssidLen);
     item.networkIDLen = mDriver->mStagingNetwork.ssidLen;
     item.connected    = false;
     mExhausted        = true;

     Network configuredNetwork;
     CHIP_ERROR err = GetConfiguredNetwork(configuredNetwork);
     if (err == CHIP_NO_ERROR)
     {
         bool isConnected = false;
         err              = chip::DeviceLayer::Internal::AmebaUtils::IsStationConnected(isConnected);

         if (isConnected && configuredNetwork.networkIDLen == item.networkIDLen &&
             memcmp(configuredNetwork.networkID, item.networkID, item.networkIDLen) == 0)
         {
             item.connected = true;
         }
     }
     return true;
 }

 } // namespace NetworkCommissioning
 } // namespace DeviceLayer
 } // namespace chip
	/*
	*
	* Copyright (c) 2021 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.
	*/

	#include <lib/support/CodeUtils.h>
	#include <lib/support/SafeInt.h>
	#include <platform/Ameba/AmebaUtils.h>
	#include <platform/Ameba/NetworkCommissioningDriver.h>
	#include <platform/CHIPDeviceLayer.h>

	#include <limits>
	#include <string>

	extern uint32_t apNum;
	using namespace ::chip;

	namespace chip {
	namespace DeviceLayer {
	namespace NetworkCommissioning {

	CHIP_ERROR AmebaWiFiDriver::Init(NetworkStatusChangeCallback * networkStatusChangeCallback)
	{
	CHIP_ERROR err;
	size_t ssidLen = 0;
	size_t credentialsLen = 0;
	mpScanCallback = nullptr;
	mpConnectCallback = nullptr;
	mpStatusChangeCallback = networkStatusChangeCallback;

	rtw_wifi_config_t config = { 0 };
	err = chip::DeviceLayer::Internal::AmebaUtils::GetWiFiConfig(&config);
	if (err == CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND)
	{
	return CHIP_NO_ERROR;
	}

	memcpy(mSavedNetwork.ssid, config.ssid, sizeof(config.ssid));
	memcpy(mSavedNetwork.credentials, config.password, sizeof(config.password));
	mSavedNetwork.ssidLen = config.ssid_len;
	mSavedNetwork.credentialsLen = config.password_len;

	mStagingNetwork = mSavedNetwork;
	return err;
	}

	void AmebaWiFiDriver::Shutdown()
	{
	mpStatusChangeCallback = nullptr;
	}

	CHIP_ERROR AmebaWiFiDriver::CommitConfiguration()
	{
	rtw_wifi_config_t config = { 0 };
	memcpy(config.ssid, mStagingNetwork.ssid, mStagingNetwork.ssidLen);
	memcpy(config.password, mStagingNetwork.credentials, mStagingNetwork.credentialsLen);
	ReturnErrorOnFailure(chip::DeviceLayer::Internal::AmebaUtils::SetWiFiConfig(&config));

	mSavedNetwork = mStagingNetwork;
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR AmebaWiFiDriver::RevertConfiguration()
	{
	mStagingNetwork = mSavedNetwork;
	return CHIP_NO_ERROR;
	}

	bool AmebaWiFiDriver::NetworkMatch(const WiFiNetwork & network, ByteSpan networkId)
	{
	return networkId.size() == network.ssidLen && memcmp(networkId.data(), network.ssid, network.ssidLen) == 0;
	}

	Status AmebaWiFiDriver::AddOrUpdateNetwork(ByteSpan ssid, ByteSpan credentials, MutableCharSpan & outDebugText,
	uint8_t & outNetworkIndex)
	{
	outDebugText.reduce_size(0);
	outNetworkIndex = 0;
	VerifyOrReturnError(mStagingNetwork.ssidLen == 0 \|\| NetworkMatch(mStagingNetwork, ssid), Status::kBoundsExceeded);
	VerifyOrReturnError(credentials.size() <= sizeof(mStagingNetwork.credentials), Status::kOutOfRange);
	VerifyOrReturnError(ssid.size() <= sizeof(mStagingNetwork.ssid), Status::kOutOfRange);

	mStagingNetwork = {};
	memcpy(mStagingNetwork.credentials, credentials.data(), credentials.size());
	mStagingNetwork.credentialsLen = static_cast<decltype(mStagingNetwork.credentialsLen)>(credentials.size());

	memcpy(mStagingNetwork.ssid, ssid.data(), ssid.size());
	mStagingNetwork.ssidLen = static_cast<decltype(mStagingNetwork.ssidLen)>(ssid.size());

	return Status::kSuccess;
	}

	Status AmebaWiFiDriver::RemoveNetwork(ByteSpan networkId, MutableCharSpan & outDebugText, uint8_t & outNetworkIndex)
	{
	outDebugText.reduce_size(0);
	outNetworkIndex = 0;
	VerifyOrReturnError(NetworkMatch(mStagingNetwork, networkId), Status::kNetworkIDNotFound);

	// Use empty ssid for representing invalid network
	mStagingNetwork = {};
	mStagingNetwork.ssidLen = 0;
	return Status::kSuccess;
	}

	Status AmebaWiFiDriver::ReorderNetwork(ByteSpan networkId, uint8_t index, MutableCharSpan & outDebugText)
	{
	outDebugText.reduce_size(0);
	// Only one network is supported now
	VerifyOrReturnError(index == 0, Status::kOutOfRange);
	VerifyOrReturnError(NetworkMatch(mStagingNetwork, networkId), Status::kNetworkIDNotFound);
	return Status::kSuccess;
	}

	CHIP_ERROR AmebaWiFiDriver::ConnectWiFiNetwork(const char * ssid, uint8_t ssidLen, const char * key, uint8_t keyLen)
	{
	CHIP_ERROR err = CHIP_NO_ERROR;
	// If device is already connected to WiFi, then disconnect the WiFi,
	// clear the WiFi configurations and add the newly provided WiFi configurations.
	if (chip::DeviceLayer::Internal::AmebaUtils::IsStationProvisioned())
	{
	ChipLogProgress(DeviceLayer, "Disconnecting WiFi station interface");
	err = chip::DeviceLayer::Internal::AmebaUtils::WiFiDisconnect();
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(DeviceLayer, "WiFiDisconnect() failed");
	return err;
	}
	err = chip::DeviceLayer::Internal::AmebaUtils::ClearWiFiConfig();
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(DeviceLayer, "ClearWiFiStationProvision failed");
	return err;
	}
	}

	ReturnErrorOnFailure(ConnectivityMgr().SetWiFiStationMode(ConnectivityManager::kWiFiStationMode_Disabled));

	rtw_wifi_config_t wifiConfig;

	// Set the wifi configuration
	memset(&wifiConfig, 0, sizeof(wifiConfig));
	memcpy(wifiConfig.ssid, ssid, ssidLen + 1);
	memcpy(wifiConfig.password, key, keyLen + 1);

	// Configure the WiFi interface.
	err = chip::DeviceLayer::Internal::AmebaUtils::SetWiFiConfig(&wifiConfig);
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(DeviceLayer, "SetWiFiConfig() failed");
	return err;
	}

	ReturnErrorOnFailure(ConnectivityMgr().SetWiFiStationMode(ConnectivityManager::kWiFiStationMode_Disabled));
	return ConnectivityMgr().SetWiFiStationMode(ConnectivityManager::kWiFiStationMode_Enabled);
	}

	void AmebaWiFiDriver::OnConnectWiFiNetwork()
	{
	if (mpConnectCallback)
	{
	mpConnectCallback->OnResult(Status::kSuccess, CharSpan(), 0);
	mpConnectCallback = nullptr;
	}
	}

	void AmebaWiFiDriver::ConnectNetwork(ByteSpan networkId, ConnectCallback * callback)
	{
	CHIP_ERROR err = CHIP_NO_ERROR;
	Status networkingStatus = Status::kSuccess;

	VerifyOrExit(NetworkMatch(mStagingNetwork, networkId), networkingStatus = Status::kNetworkIDNotFound);
	VerifyOrExit(mpConnectCallback == nullptr, networkingStatus = Status::kUnknownError);
	ChipLogProgress(NetworkProvisioning, "Ameba NetworkCommissioningDelegate: SSID: %s", mStagingNetwork.ssid);

	err = ConnectWiFiNetwork(reinterpret_cast<const char *>(mStagingNetwork.ssid), mStagingNetwork.ssidLen,
	reinterpret_cast<const char *>(mStagingNetwork.credentials), mStagingNetwork.credentialsLen);
	mpConnectCallback = callback;
	exit:
	if (err != CHIP_NO_ERROR)
	{
	networkingStatus = Status::kUnknownError;
	}
	if (networkingStatus != Status::kSuccess)
	{
	ChipLogError(NetworkProvisioning, "Failed to connect to WiFi network:%s", chip::ErrorStr(err));
	mpConnectCallback = nullptr;
	callback->OnResult(networkingStatus, CharSpan(), 0);
	}
	}

	CHIP_ERROR AmebaWiFiDriver::StartScanWiFiNetworks(ByteSpan ssid)
	{
	if (!ssid.empty()) // ssid is given, only scan this network
	{
	matter_scan_networks_with_ssid(ssid.data(), ssid.size());
	}
	else // scan all networks
	{
	matter_scan_networks();
	}
	return CHIP_NO_ERROR;
	}

	void AmebaWiFiDriver::OnScanWiFiNetworkDone()
	{
	uint16_t NumAP = apNum;
	apNum = 0;
	if (!NumAP)
	{
	ChipLogProgress(DeviceLayer, "No AP found");
	if (mpScanCallback != nullptr)
	{
	mpScanCallback->OnFinished(Status::kSuccess, CharSpan(), nullptr);
	mpScanCallback = nullptr;
	}
	return;
	}

	rtw_scan_result_t * ScanResult = (rtw_scan_result ) pvPortMalloc(NumAP sizeof(rtw_scan_result));
	matter_get_scan_results(ScanResult, NumAP);

	if (ScanResult)
	{
	if (CHIP_NO_ERROR == DeviceLayer::SystemLayer().ScheduleLambda([NumAP, ScanResult]() {
	AmebaScanResponseIterator iter(NumAP, ScanResult);
	if (GetInstance().mpScanCallback)
	{
	GetInstance().mpScanCallback->OnFinished(Status::kSuccess, CharSpan(), &iter);
	GetInstance().mpScanCallback = nullptr;
	}
	else
	{
	ChipLogError(DeviceLayer, "can't find the ScanCallback function");
	}
	}))
	{
	ChipLogProgress(DeviceLayer, "ScheduleLambda OK");
	}
	}
	else
	{
	ChipLogError(DeviceLayer, "can't get ap_records ");
	if (mpScanCallback)
	{
	mpScanCallback->OnFinished(Status::kUnknownError, CharSpan(), nullptr);
	mpScanCallback = nullptr;
	}
	}
	vPortFree(ScanResult);
	}

	CHIP_ERROR GetConfiguredNetwork(Network & network)
	{
	rtw_wifi_setting_t wifi_setting;
	wifi_get_setting(WLAN0_NAME, &wifi_setting);

	uint8_t length = strnlen(reinterpret_cast<const char *>(wifi_setting.ssid), DeviceLayer::Internal::kMaxWiFiSSIDLength);
	if (length > sizeof(network.networkID))
	{
	ChipLogError(DeviceLayer, "SSID too long");
	return CHIP_ERROR_INTERNAL;
	}

	memcpy(network.networkID, wifi_setting.ssid, length);
	network.networkIDLen = length;
	return CHIP_NO_ERROR;
	}

	void AmebaWiFiDriver::OnNetworkStatusChange()
	{
	Network configuredNetwork;
	bool staEnabled = false, staConnected = false;
	VerifyOrReturn(chip::DeviceLayer::Internal::AmebaUtils::IsStationEnabled(staEnabled) == CHIP_NO_ERROR);
	VerifyOrReturn(staEnabled && mpStatusChangeCallback != nullptr);

	CHIP_ERROR err = GetConfiguredNetwork(configuredNetwork);
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(DeviceLayer, "Failed to get configured network when updating network status: %s", err.AsString());
	return;
	}

	VerifyOrReturn(chip::DeviceLayer::Internal::AmebaUtils::IsStationConnected(staConnected) == CHIP_NO_ERROR);
	if (staConnected)
	{
	mpStatusChangeCallback->OnNetworkingStatusChange(
	Status::kSuccess, MakeOptional(ByteSpan(configuredNetwork.networkID, configuredNetwork.networkIDLen)), NullOptional);
	return;
	}
	mpStatusChangeCallback->OnNetworkingStatusChange(
	Status::kUnknownError, MakeOptional(ByteSpan(configuredNetwork.networkID, configuredNetwork.networkIDLen)),
	MakeOptional(GetLastDisconnectReason()));
	}

	void AmebaWiFiDriver::ScanNetworks(ByteSpan ssid, WiFiDriver::ScanCallback * callback)
	{
	if (callback != nullptr)
	{
	mpScanCallback = callback;
	if (StartScanWiFiNetworks(ssid) != CHIP_NO_ERROR)
	{
	mpScanCallback = nullptr;
	callback->OnFinished(Status::kUnknownError, CharSpan(), nullptr);
	}
	}
	}

	CHIP_ERROR AmebaWiFiDriver::SetLastDisconnectReason(const ChipDeviceEvent * event)
	{
	VerifyOrReturnError(event->Type == DeviceEventType::kRtkWiFiStationDisconnectedEvent, CHIP_ERROR_INVALID_ARGUMENT);
	mLastDisconnectedReason = wifi_get_last_error();
	return CHIP_NO_ERROR;
	}

	int32_t AmebaWiFiDriver::GetLastDisconnectReason()
	{
	return mLastDisconnectedReason;
	}

	size_t AmebaWiFiDriver::WiFiNetworkIterator::Count()
	{
	return mDriver->mStagingNetwork.ssidLen == 0 ? 0 : 1;
	}

	bool AmebaWiFiDriver::WiFiNetworkIterator::Next(Network & item)
	{
	if (mExhausted \|\| mDriver->mStagingNetwork.ssidLen == 0)
	{
	return false;
	}
	memcpy(item.networkID, mDriver->mStagingNetwork.ssid, mDriver->mStagingNetwork.ssidLen);
	item.networkIDLen = mDriver->mStagingNetwork.ssidLen;
	item.connected = false;
	mExhausted = true;

	Network configuredNetwork;
	CHIP_ERROR err = GetConfiguredNetwork(configuredNetwork);
	if (err == CHIP_NO_ERROR)
	{
	bool isConnected = false;
	err = chip::DeviceLayer::Internal::AmebaUtils::IsStationConnected(isConnected);

	if (isConnected && configuredNetwork.networkIDLen == item.networkIDLen &&
	memcmp(configuredNetwork.networkID, item.networkID, item.networkIDLen) == 0)
	{
	item.connected = true;
	}
	}
	return true;
	}

	} // namespace NetworkCommissioning
	} // namespace DeviceLayer
	} // namespace chip