service/java/com/android/server/wifi/WifiSettingsConfigStore.java - platform/packages/modules/Wifi - Git at Google

 /*
  * Copyright (C) 2020 The Android Open Source Project
  *
  * 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.
  */

 package com.android.server.wifi;

 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StringDef;
 import android.content.Context;
 import android.net.wifi.WifiMigration;
 import android.os.Handler;
 import android.text.TextUtils;
 import android.util.Log;

 import com.android.internal.annotations.GuardedBy;
 import com.android.server.wifi.util.WifiConfigStoreEncryptionUtil;
 import com.android.server.wifi.util.XmlUtil;


 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;

 import java.io.IOException;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.HashMap;
 import java.util.Map;

 /**
  * Store data for storing wifi settings. These are key (string) / value pairs that are stored in
  * WifiConfigStore.xml file in a separate section.
  * TODO(b/149738301): Rework this class.
  */
 public class WifiSettingsConfigStore {
     private static final String TAG = "WifiSettingsConfigStore";

     /******** Wifi shared pref keys ***************/
     @StringDef({
             WIFI_P2P_DEVICE_NAME,
             WIFI_P2P_PENDING_FACTORY_RESET,
             WIFI_SCAN_ALWAYS_AVAILABLE,
             WIFI_SCAN_THROTTLE_ENABLED,
             WIFI_VERBOSE_LOGGING_ENABLED
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface WifiSettingsKey {}

     /**
      * The Wi-Fi peer-to-peer device name
      */
     public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";

     /**
      * Indicate whether factory reset request is pending.
      */
     public static final String WIFI_P2P_PENDING_FACTORY_RESET = "wifi_p2p_pending_factory_reset";

     /**
      * Allow scans to be enabled even wifi is turned off.
      */
     public static final String WIFI_SCAN_ALWAYS_AVAILABLE = "wifi_scan_always_enabled";

     /**
      * Whether wifi scan throttle is enabled or not.
      */
     public static final String WIFI_SCAN_THROTTLE_ENABLED = "wifi_scan_throttle_enabled";

     /**
      * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
      * will enable it. In the future, additional values may be supported.
      */
     public static final String WIFI_VERBOSE_LOGGING_ENABLED = "wifi_verbose_logging_enabled";
     /******** Wifi shared pref keys ***************/

     private final Context mContext;
     private final Handler mHandler;
     private final WifiConfigManager mWifiConfigManager;

     private final Object mLock = new Object();
     @GuardedBy("mLock")
     private final Map<String, Object> mSettings = new HashMap<>();
     @GuardedBy("mLock")
     private final Map<String, Map<OnSettingsChangedListener, Handler>> mListeners =
             new HashMap<>();

     private boolean mHasNewDataToSerialize = false;

     /**
      * Interface for a settings change listener.
      */
     public interface OnSettingsChangedListener {
         /**
          * Invoked when a particular key settings changes.
          *
          * @param key Key that was changed.
          * @param newValue New value that was assigned to the key.
          */
         void onSettingsChanged(@NonNull @WifiSettingsKey String key, @NonNull Object newValue);
     }

     public WifiSettingsConfigStore(@NonNull Context context, @NonNull Handler handler,
             @NonNull WifiConfigManager wifiConfigManager,
             @NonNull WifiConfigStore wifiConfigStore) {
         mContext = context;
         mHandler = handler;
         mWifiConfigManager = wifiConfigManager;

         // Register our data store.
         wifiConfigStore.registerStoreData(new StoreData());
     }

     private void invokeAllListeners() {
         synchronized (mLock) {
             for (String key : mSettings.keySet()) {
                 invokeListeners(key);
             }
         }
     }

     private void invokeListeners(@NonNull @WifiSettingsKey String key) {
         synchronized (mLock) {
             Object newValue = mSettings.get(key);
             Map<OnSettingsChangedListener, Handler> listeners = mListeners.get(key);
             if (listeners == null || listeners.isEmpty()) return;
             for (Map.Entry<OnSettingsChangedListener, Handler> listener
                     : listeners.entrySet()) {
                 // Trigger the callback in the appropriate handler.
                 listener.getValue().post(() -> listener.getKey().onSettingsChanged(key, newValue));
             }
         }
     }

     /**
      * Trigger config store writes and invoke listeners in the main wifi service looper's handler.
      */
     private void triggerSaveToStoreAndInvokeAllListeners() {
         mHandler.post(() -> {
             mHasNewDataToSerialize = true;
             mWifiConfigManager.saveToStore(true);

             invokeAllListeners();
         });
     }

     /**
      * Trigger config store writes and invoke listeners in the main wifi service looper's handler.
      */
     private void triggerSaveToStoreAndInvokeListeners(@NonNull @WifiSettingsKey String key) {
         mHandler.post(() -> {
             mHasNewDataToSerialize = true;
             mWifiConfigManager.saveToStore(true);

             invokeListeners(key);
         });
     }

     /**
      * Performs a one time migration from Settings.Global values to settings store. Only
      * performed one time if the settings store is empty.
      */
     private void migrateFromSettingsIfNeeded() {
         if (!mSettings.isEmpty()) return; // already migrated.

         WifiMigration.SettingsMigrationData dataToMigrate =
                 WifiMigration.loadFromSettings(mContext);
         if (dataToMigrate == null) {
             Log.e(TAG, "Not settings data to migrate");
             return;
         }
         Log.i(TAG, "Migrating data out of settings to shared preferences");

         mSettings.put(WIFI_P2P_DEVICE_NAME, dataToMigrate.getP2pDeviceName());
         mSettings.put(WIFI_P2P_PENDING_FACTORY_RESET, dataToMigrate.isP2pFactoryResetPending());
         mSettings.put(WIFI_SCAN_THROTTLE_ENABLED, dataToMigrate.isScanThrottleEnabled());
         mSettings.put(WIFI_VERBOSE_LOGGING_ENABLED, dataToMigrate.isVerboseLoggingEnabled());
         triggerSaveToStoreAndInvokeAllListeners();
     }

     /**
      * Store an int value to the stored settings.
      *
      * @param key One of the settings keys.
      * @param value Value to be stored.
      */
     public void putInt(@NonNull @WifiSettingsKey String key, int value) {
         synchronized (mLock) {
             mSettings.put(key, value);
         }
         triggerSaveToStoreAndInvokeListeners(key);
     }

     /**
      * Store a boolean value to the stored settings.
      *
      * @param key One of the settings keys.
      * @param value Value to be stored.
      */
     public void putBoolean(@NonNull @WifiSettingsKey String key, boolean value) {
         synchronized (mLock) {
             mSettings.put(key, value);
         }
         triggerSaveToStoreAndInvokeListeners(key);
     }

     /**
      * Store a String value to the stored settings.
      *
      * @param key One of the settings keys.
      * @param value Value to be stored.
      */
     public void putString(@NonNull @WifiSettingsKey String key, @NonNull String value) {
         synchronized (mLock) {
             mSettings.put(key, value);
         }
         triggerSaveToStoreAndInvokeListeners(key);
     }

     /**
      * Retrieve an int value from the stored settings.
      *
      * @param key One of the settings keys.
      * @param defValue Default value to be returned if the key does not exist.
      * @return value stored in settings, defValue if the key does not exist.
      */
     public int getInt(@NonNull @WifiSettingsKey String key, int defValue) {
         synchronized (mLock) {
             return (int) mSettings.getOrDefault(key, defValue);
         }
     }

     /**
      * Retrieve a boolean value from the stored settings.
      *
      * @param key One of the settings keys.
      * @param defValue Default value to be returned if the key does not exist.
      * @return value stored in settings, defValue if the key does not exist.
      */
     public boolean getBoolean(@NonNull @WifiSettingsKey String key, boolean defValue) {
         synchronized (mLock) {
             return (boolean) mSettings.getOrDefault(key, defValue);
         }
     }

     /**
      * Retrieve a string value from the stored settings.
      *
      * @param key One of the settings keys.
      * @param defValue Default value to be returned if the key does not exist.
      * @return value stored in settings, defValue if the key does not exist.
      */
     public @Nullable String getString(@NonNull @WifiSettingsKey String key,
             @Nullable String defValue) {
         synchronized (mLock) {
             return (String) mSettings.getOrDefault(key, defValue);
         }
     }

     /**
      * Register for settings change listener.
      *
      * @param key One of the settings keys.
      * @param listener Listener to be registered.
      * @param handler Handler to post the listener
      */
     public void registerChangeListener(@NonNull @WifiSettingsKey String key,
             @NonNull OnSettingsChangedListener listener, @NonNull Handler handler) {
         synchronized (mLock) {
             mListeners.computeIfAbsent(key, ignore -> new HashMap<>()).put(listener, handler);
         }
     }

     /**
      * Unregister for settings change listener.
      *
      * @param key One of the settings keys.
      * @param listener Listener to be unregistered.
      */
     public void unregisterChangeListener(@NonNull @WifiSettingsKey String key,
             @NonNull OnSettingsChangedListener listener) {
         synchronized (mLock) {
             Map<OnSettingsChangedListener, Handler> listeners = mListeners.get(key);
             if (listeners == null || listeners.isEmpty()) {
                 Log.e(TAG, "No listeners for " + key);
                 return;
             }
             if (listeners.remove(listener) == null) {
                 Log.e(TAG, "Unknown listener for " + key);
             }
         }
     }

     /**
      * Store data for persisting the settings data to config store.
      */
     private class StoreData implements WifiConfigStore.StoreData {
         private static final String XML_TAG_SECTION_HEADER = "Settings";
         private static final String XML_TAG_VALUES = "Values";

         @Override
         public void serializeData(XmlSerializer out,
                 @Nullable WifiConfigStoreEncryptionUtil encryptionUtil)
                 throws XmlPullParserException, IOException {
             synchronized (mLock) {
                 XmlUtil.writeNextValue(out, XML_TAG_VALUES, mSettings);
             }
         }

         @Override
         public void deserializeData(XmlPullParser in, int outerTagDepth,
                 @WifiConfigStore.Version int version,
                 @Nullable WifiConfigStoreEncryptionUtil encryptionUtil,
                 @NonNull WifiConfigStoreMigrationDataHolder storeMigrationDataHolder)
                 throws XmlPullParserException, IOException {
             if (in == null) {
                 // Empty read triggers the migration since it indicates that there is no settings
                 // data stored in the settings store.
                 migrateFromSettingsIfNeeded();
                 return;
             }
             Map<String, Object> values = null;
             while (!XmlUtil.isNextSectionEnd(in, outerTagDepth)) {
                 String[] valueName = new String[1];
                 Object value = XmlUtil.readCurrentValue(in, valueName);
                 if (TextUtils.isEmpty(valueName[0])) {
                     throw new XmlPullParserException("Missing value name");
                 }
                 switch (valueName[0]) {
                     case XML_TAG_VALUES:
                         values = (Map) value;
                         break;
                     default:
                         Log.w(TAG, "Ignoring unknown tag under " + XML_TAG_SECTION_HEADER + ": "
                                 + valueName[0]);
                         break;
                 }
             }
             if (values != null) {
                 synchronized (mLock) {
                     mSettings.putAll(values);
                     // Invoke all the registered listeners.
                     invokeAllListeners();
                 }
             }
         }

         @Override
         public void resetData() {
             synchronized (mLock) {
                 mSettings.clear();
             }
         }

         @Override
         public boolean hasNewDataToSerialize() {
             return mHasNewDataToSerialize;
         }

         @Override
         public String getName() {
             return XML_TAG_SECTION_HEADER;
         }

         @Override
         public @WifiConfigStore.StoreFileId int getStoreFileId() {
             // Shared general store.
             return WifiConfigStore.STORE_FILE_SHARED_GENERAL;
         }
     }
 }
	/*
	* Copyright (C) 2020 The Android Open Source Project
	*
	* 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.
	*/

	package com.android.server.wifi;

	import android.annotation.NonNull;
	import android.annotation.Nullable;
	import android.annotation.StringDef;
	import android.content.Context;
	import android.net.wifi.WifiMigration;
	import android.os.Handler;
	import android.text.TextUtils;
	import android.util.Log;

	import com.android.internal.annotations.GuardedBy;
	import com.android.server.wifi.util.WifiConfigStoreEncryptionUtil;
	import com.android.server.wifi.util.XmlUtil;


	import org.xmlpull.v1.XmlPullParser;
	import org.xmlpull.v1.XmlPullParserException;
	import org.xmlpull.v1.XmlSerializer;

	import java.io.IOException;
	import java.lang.annotation.Retention;
	import java.lang.annotation.RetentionPolicy;
	import java.util.HashMap;
	import java.util.Map;

	/**
	* Store data for storing wifi settings. These are key (string) / value pairs that are stored in
	* WifiConfigStore.xml file in a separate section.
	* TODO(b/149738301): Rework this class.
	*/
	public class WifiSettingsConfigStore {
	private static final String TAG = "WifiSettingsConfigStore";

	/****** Wifi shared pref keys *************/
	@StringDef({
	WIFI_P2P_DEVICE_NAME,
	WIFI_P2P_PENDING_FACTORY_RESET,
	WIFI_SCAN_ALWAYS_AVAILABLE,
	WIFI_SCAN_THROTTLE_ENABLED,
	WIFI_VERBOSE_LOGGING_ENABLED
	})
	@Retention(RetentionPolicy.SOURCE)
	public @interface WifiSettingsKey {}

	/**
	* The Wi-Fi peer-to-peer device name
	*/
	public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";

	/**
	* Indicate whether factory reset request is pending.
	*/
	public static final String WIFI_P2P_PENDING_FACTORY_RESET = "wifi_p2p_pending_factory_reset";

	/**
	* Allow scans to be enabled even wifi is turned off.
	*/
	public static final String WIFI_SCAN_ALWAYS_AVAILABLE = "wifi_scan_always_enabled";

	/**
	* Whether wifi scan throttle is enabled or not.
	*/
	public static final String WIFI_SCAN_THROTTLE_ENABLED = "wifi_scan_throttle_enabled";

	/**
	* Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
	* will enable it. In the future, additional values may be supported.
	*/
	public static final String WIFI_VERBOSE_LOGGING_ENABLED = "wifi_verbose_logging_enabled";
	/****** Wifi shared pref keys *************/

	private final Context mContext;
	private final Handler mHandler;
	private final WifiConfigManager mWifiConfigManager;

	private final Object mLock = new Object();
	@GuardedBy("mLock")
	private final Map<String, Object> mSettings = new HashMap<>();
	@GuardedBy("mLock")
	private final Map<String, Map<OnSettingsChangedListener, Handler>> mListeners =
	new HashMap<>();

	private boolean mHasNewDataToSerialize = false;

	/**
	* Interface for a settings change listener.
	*/
	public interface OnSettingsChangedListener {
	/**
	* Invoked when a particular key settings changes.
	*
	* @param key Key that was changed.
	* @param newValue New value that was assigned to the key.
	*/
	void onSettingsChanged(@NonNull @WifiSettingsKey String key, @NonNull Object newValue);
	}

	public WifiSettingsConfigStore(@NonNull Context context, @NonNull Handler handler,
	@NonNull WifiConfigManager wifiConfigManager,
	@NonNull WifiConfigStore wifiConfigStore) {
	mContext = context;
	mHandler = handler;
	mWifiConfigManager = wifiConfigManager;

	// Register our data store.
	wifiConfigStore.registerStoreData(new StoreData());
	}

	private void invokeAllListeners() {
	synchronized (mLock) {
	for (String key : mSettings.keySet()) {
	invokeListeners(key);
	}
	}
	}

	private void invokeListeners(@NonNull @WifiSettingsKey String key) {
	synchronized (mLock) {
	Object newValue = mSettings.get(key);
	Map<OnSettingsChangedListener, Handler> listeners = mListeners.get(key);
	if (listeners == null \|\| listeners.isEmpty()) return;
	for (Map.Entry<OnSettingsChangedListener, Handler> listener
	: listeners.entrySet()) {
	// Trigger the callback in the appropriate handler.
	listener.getValue().post(() -> listener.getKey().onSettingsChanged(key, newValue));
	}
	}
	}

	/**
	* Trigger config store writes and invoke listeners in the main wifi service looper's handler.
	*/
	private void triggerSaveToStoreAndInvokeAllListeners() {
	mHandler.post(() -> {
	mHasNewDataToSerialize = true;
	mWifiConfigManager.saveToStore(true);

	invokeAllListeners();
	});
	}

	/**
	* Trigger config store writes and invoke listeners in the main wifi service looper's handler.
	*/
	private void triggerSaveToStoreAndInvokeListeners(@NonNull @WifiSettingsKey String key) {
	mHandler.post(() -> {
	mHasNewDataToSerialize = true;
	mWifiConfigManager.saveToStore(true);

	invokeListeners(key);
	});
	}

	/**
	* Performs a one time migration from Settings.Global values to settings store. Only
	* performed one time if the settings store is empty.
	*/
	private void migrateFromSettingsIfNeeded() {
	if (!mSettings.isEmpty()) return; // already migrated.

	WifiMigration.SettingsMigrationData dataToMigrate =
	WifiMigration.loadFromSettings(mContext);
	if (dataToMigrate == null) {
	Log.e(TAG, "Not settings data to migrate");
	return;
	}
	Log.i(TAG, "Migrating data out of settings to shared preferences");

	mSettings.put(WIFI_P2P_DEVICE_NAME, dataToMigrate.getP2pDeviceName());
	mSettings.put(WIFI_P2P_PENDING_FACTORY_RESET, dataToMigrate.isP2pFactoryResetPending());
	mSettings.put(WIFI_SCAN_THROTTLE_ENABLED, dataToMigrate.isScanThrottleEnabled());
	mSettings.put(WIFI_VERBOSE_LOGGING_ENABLED, dataToMigrate.isVerboseLoggingEnabled());
	triggerSaveToStoreAndInvokeAllListeners();
	}

	/**
	* Store an int value to the stored settings.
	*
	* @param key One of the settings keys.
	* @param value Value to be stored.
	*/
	public void putInt(@NonNull @WifiSettingsKey String key, int value) {
	synchronized (mLock) {
	mSettings.put(key, value);
	}
	triggerSaveToStoreAndInvokeListeners(key);
	}

	/**
	* Store a boolean value to the stored settings.
	*
	* @param key One of the settings keys.
	* @param value Value to be stored.
	*/
	public void putBoolean(@NonNull @WifiSettingsKey String key, boolean value) {
	synchronized (mLock) {
	mSettings.put(key, value);
	}
	triggerSaveToStoreAndInvokeListeners(key);
	}

	/**
	* Store a String value to the stored settings.
	*
	* @param key One of the settings keys.
	* @param value Value to be stored.
	*/
	public void putString(@NonNull @WifiSettingsKey String key, @NonNull String value) {
	synchronized (mLock) {
	mSettings.put(key, value);
	}
	triggerSaveToStoreAndInvokeListeners(key);
	}

	/**
	* Retrieve an int value from the stored settings.
	*
	* @param key One of the settings keys.
	* @param defValue Default value to be returned if the key does not exist.
	* @return value stored in settings, defValue if the key does not exist.
	*/
	public int getInt(@NonNull @WifiSettingsKey String key, int defValue) {
	synchronized (mLock) {
	return (int) mSettings.getOrDefault(key, defValue);
	}
	}

	/**
	* Retrieve a boolean value from the stored settings.
	*
	* @param key One of the settings keys.
	* @param defValue Default value to be returned if the key does not exist.
	* @return value stored in settings, defValue if the key does not exist.
	*/
	public boolean getBoolean(@NonNull @WifiSettingsKey String key, boolean defValue) {
	synchronized (mLock) {
	return (boolean) mSettings.getOrDefault(key, defValue);
	}
	}

	/**
	* Retrieve a string value from the stored settings.
	*
	* @param key One of the settings keys.
	* @param defValue Default value to be returned if the key does not exist.
	* @return value stored in settings, defValue if the key does not exist.
	*/
	public @Nullable String getString(@NonNull @WifiSettingsKey String key,
	@Nullable String defValue) {
	synchronized (mLock) {
	return (String) mSettings.getOrDefault(key, defValue);
	}
	}

	/**
	* Register for settings change listener.
	*
	* @param key One of the settings keys.
	* @param listener Listener to be registered.
	* @param handler Handler to post the listener
	*/
	public void registerChangeListener(@NonNull @WifiSettingsKey String key,
	@NonNull OnSettingsChangedListener listener, @NonNull Handler handler) {
	synchronized (mLock) {
	mListeners.computeIfAbsent(key, ignore -> new HashMap<>()).put(listener, handler);
	}
	}

	/**
	* Unregister for settings change listener.
	*
	* @param key One of the settings keys.
	* @param listener Listener to be unregistered.
	*/
	public void unregisterChangeListener(@NonNull @WifiSettingsKey String key,
	@NonNull OnSettingsChangedListener listener) {
	synchronized (mLock) {
	Map<OnSettingsChangedListener, Handler> listeners = mListeners.get(key);
	if (listeners == null \|\| listeners.isEmpty()) {
	Log.e(TAG, "No listeners for " + key);
	return;
	}
	if (listeners.remove(listener) == null) {
	Log.e(TAG, "Unknown listener for " + key);
	}
	}
	}

	/**
	* Store data for persisting the settings data to config store.
	*/
	private class StoreData implements WifiConfigStore.StoreData {
	private static final String XML_TAG_SECTION_HEADER = "Settings";
	private static final String XML_TAG_VALUES = "Values";

	@Override
	public void serializeData(XmlSerializer out,
	@Nullable WifiConfigStoreEncryptionUtil encryptionUtil)
	throws XmlPullParserException, IOException {
	synchronized (mLock) {
	XmlUtil.writeNextValue(out, XML_TAG_VALUES, mSettings);
	}
	}

	@Override
	public void deserializeData(XmlPullParser in, int outerTagDepth,
	@WifiConfigStore.Version int version,
	@Nullable WifiConfigStoreEncryptionUtil encryptionUtil,
	@NonNull WifiConfigStoreMigrationDataHolder storeMigrationDataHolder)
	throws XmlPullParserException, IOException {
	if (in == null) {
	// Empty read triggers the migration since it indicates that there is no settings
	// data stored in the settings store.
	migrateFromSettingsIfNeeded();
	return;
	}
	Map<String, Object> values = null;
	while (!XmlUtil.isNextSectionEnd(in, outerTagDepth)) {
	String[] valueName = new String[1];
	Object value = XmlUtil.readCurrentValue(in, valueName);
	if (TextUtils.isEmpty(valueName[0])) {
	throw new XmlPullParserException("Missing value name");
	}
	switch (valueName[0]) {
	case XML_TAG_VALUES:
	values = (Map) value;
	break;
	default:
	Log.w(TAG, "Ignoring unknown tag under " + XML_TAG_SECTION_HEADER + ": "
	+ valueName[0]);
	break;
	}
	}
	if (values != null) {
	synchronized (mLock) {
	mSettings.putAll(values);
	// Invoke all the registered listeners.
	invokeAllListeners();
	}
	}
	}

	@Override
	public void resetData() {
	synchronized (mLock) {
	mSettings.clear();
	}
	}

	@Override
	public boolean hasNewDataToSerialize() {
	return mHasNewDataToSerialize;
	}

	@Override
	public String getName() {
	return XML_TAG_SECTION_HEADER;
	}

	@Override
	public @WifiConfigStore.StoreFileId int getStoreFileId() {
	// Shared general store.
	return WifiConfigStore.STORE_FILE_SHARED_GENERAL;
	}
	}
	}