| /* |
| * Copyright (C) 2016 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 static android.net.wifi.WifiManager.WIFI_STATE_DISABLED; |
| import static android.net.wifi.WifiManager.WIFI_STATE_DISABLING; |
| import static android.net.wifi.WifiManager.WIFI_STATE_ENABLED; |
| import static android.net.wifi.WifiManager.WIFI_STATE_ENABLING; |
| import static android.net.wifi.WifiManager.WIFI_STATE_UNKNOWN; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.ConnectivityManager; |
| import android.net.ConnectivityManager.NetworkCallback; |
| import android.net.DhcpResultsParcelable; |
| import android.net.Network; |
| import android.net.NetworkCapabilities; |
| import android.net.NetworkRequest; |
| import android.net.wifi.IWifiConnectedNetworkScorer; |
| import android.net.wifi.ScanResult; |
| import android.net.wifi.WifiAnnotations; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiInfo; |
| import android.net.wifi.WifiManager; |
| import android.net.wifi.hotspot2.IProvisioningCallback; |
| import android.net.wifi.hotspot2.OsuProvider; |
| import android.net.wifi.nl80211.WifiNl80211Manager; |
| import android.os.Handler; |
| import android.os.HandlerExecutor; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.PersistableBundle; |
| import android.os.UserHandle; |
| import android.os.WorkSource; |
| import android.telephony.AccessNetworkConstants; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.SubscriptionInfo; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.ims.ImsException; |
| import android.telephony.ims.ImsMmTelManager; |
| import android.telephony.ims.ImsReasonInfo; |
| import android.telephony.ims.RegistrationManager; |
| import android.telephony.ims.feature.MmTelFeature; |
| import android.telephony.ims.stub.ImsRegistrationImplBase; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.internal.util.IState; |
| import com.android.internal.util.State; |
| import com.android.internal.util.StateMachine; |
| import com.android.server.wifi.WifiNative.InterfaceCallback; |
| import com.android.server.wifi.util.ActionListenerWrapper; |
| import com.android.server.wifi.util.StateMachineObituary; |
| import com.android.server.wifi.util.WifiHandler; |
| import com.android.wifi.resources.R; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.ArrayDeque; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** Manager WiFi in Client Mode where we connect to configured networks. */ |
| public class ConcreteClientModeManager implements ClientModeManager { |
| private static final String TAG = "WifiClientModeManager"; |
| |
| private final ClientModeStateMachine mStateMachine; |
| |
| private final Context mContext; |
| private final Clock mClock; |
| private final WifiNative mWifiNative; |
| private final WifiMetrics mWifiMetrics; |
| private final WakeupController mWakeupController; |
| private final Listener mModeListener; |
| private final WifiInjector mWifiInjector; |
| private final SelfRecovery mSelfRecovery; |
| private final WifiGlobals mWifiGlobals; |
| private final DefaultClientModeImpl mDefaultClientModeImpl; |
| private final Graveyard mGraveyard = new Graveyard(); |
| |
| private String mClientInterfaceName; |
| private boolean mIfaceIsUp = false; |
| private DeferStopHandler mDeferStopHandler; |
| @Nullable |
| private ClientRole mRole = null; |
| @Nullable |
| private ClientRole mTargetRole = null; |
| private boolean mVerboseLoggingEnabled = false; |
| private int mActiveSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| /** |
| * mClientModeImpl is only non-null when in {@link ClientModeStateMachine.ConnectModeState} - |
| * it will be null in all other states |
| */ |
| @Nullable |
| private ClientModeImpl mClientModeImpl = null; |
| |
| /** |
| * One of {@link WifiManager#WIFI_STATE_DISABLED}, |
| * {@link WifiManager#WIFI_STATE_DISABLING}, |
| * {@link WifiManager#WIFI_STATE_ENABLED}, |
| * {@link WifiManager#WIFI_STATE_ENABLING}, |
| * {@link WifiManager#WIFI_STATE_UNKNOWN} |
| */ |
| private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); |
| |
| ConcreteClientModeManager(Context context, @NonNull Looper looper, Clock clock, |
| WifiNative wifiNative, Listener listener, WifiMetrics wifiMetrics, |
| WakeupController wakeupController, WifiInjector wifiInjector, |
| SelfRecovery selfRecovery, WifiGlobals wifiGlobals, |
| DefaultClientModeImpl defaultClientModeImpl) { |
| mContext = context; |
| mClock = clock; |
| mWifiNative = wifiNative; |
| mModeListener = listener; |
| mWifiMetrics = wifiMetrics; |
| mWakeupController = wakeupController; |
| mWifiInjector = wifiInjector; |
| mStateMachine = new ClientModeStateMachine(looper); |
| mDeferStopHandler = new DeferStopHandler(looper); |
| mSelfRecovery = selfRecovery; |
| mWifiGlobals = wifiGlobals; |
| mDefaultClientModeImpl = defaultClientModeImpl; |
| } |
| |
| private String getTag() { |
| return TAG + "[" + (mClientInterfaceName == null ? "unknown" : mClientInterfaceName) + "]"; |
| } |
| |
| /** |
| * Start client mode. |
| */ |
| @Override |
| public void start(@NonNull WorkSource requestorWs) { |
| mTargetRole = ROLE_CLIENT_SCAN_ONLY; |
| mStateMachine.sendMessage(ClientModeStateMachine.CMD_START, requestorWs); |
| } |
| |
| /** |
| * Disconnect from any currently connected networks and stop client mode. |
| */ |
| @Override |
| public void stop() { |
| Log.d(getTag(), " currentstate: " + getCurrentStateName()); |
| mTargetRole = null; |
| if (mIfaceIsUp) { |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLING, |
| WifiManager.WIFI_STATE_ENABLED); |
| } else { |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLING, |
| WifiManager.WIFI_STATE_ENABLING); |
| } |
| mDeferStopHandler.start(getWifiOffDeferringTimeMs()); |
| } |
| |
| private class DeferStopHandler extends WifiHandler { |
| private boolean mIsDeferring = false; |
| private ImsMmTelManager mImsMmTelManager = null; |
| private Looper mLooper = null; |
| private final Runnable mRunnable = () -> continueToStopWifi(); |
| private int mMaximumDeferringTimeMillis = 0; |
| private long mDeferringStartTimeMillis = 0; |
| private NetworkRequest mImsRequest = null; |
| private ConnectivityManager mConnectivityManager = null; |
| |
| private RegistrationManager.RegistrationCallback mImsRegistrationCallback = |
| new RegistrationManager.RegistrationCallback() { |
| @Override |
| public void onRegistered(int imsRadioTech) { |
| Log.d(getTag(), "on IMS registered on type " + imsRadioTech); |
| if (!mIsDeferring) return; |
| |
| if (imsRadioTech != AccessNetworkConstants.TRANSPORT_TYPE_WLAN) { |
| continueToStopWifi(); |
| } |
| } |
| |
| @Override |
| public void onUnregistered(ImsReasonInfo imsReasonInfo) { |
| Log.d(getTag(), "on IMS unregistered"); |
| // Wait for onLost in NetworkCallback |
| } |
| }; |
| |
| private NetworkCallback mImsNetworkCallback = new NetworkCallback() { |
| private int mRegisteredImsNetworkCount = 0; |
| |
| @Override |
| public void onAvailable(Network network) { |
| synchronized (this) { |
| Log.d(getTag(), "IMS network available: " + network); |
| mRegisteredImsNetworkCount++; |
| } |
| } |
| |
| @Override |
| public void onLost(Network network) { |
| synchronized (this) { |
| Log.d(getTag(), "IMS network lost: " + network |
| + " ,isDeferring: " + mIsDeferring |
| + " ,registered IMS network count: " + mRegisteredImsNetworkCount); |
| mRegisteredImsNetworkCount--; |
| if (mIsDeferring && mRegisteredImsNetworkCount <= 0) { |
| mRegisteredImsNetworkCount = 0; |
| // Add delay for targets where IMS PDN down at modem takes additional delay. |
| int delay = mContext.getResources() |
| .getInteger(R.integer.config_wifiDelayDisconnectOnImsLostMs); |
| if (delay == 0 || !postDelayed(mRunnable, delay)) { |
| continueToStopWifi(); |
| } |
| } |
| } |
| } |
| }; |
| |
| DeferStopHandler(Looper looper) { |
| super(TAG, looper); |
| mLooper = looper; |
| } |
| |
| public void start(int delayMs) { |
| if (mIsDeferring) return; |
| |
| mMaximumDeferringTimeMillis = delayMs; |
| mDeferringStartTimeMillis = mClock.getElapsedSinceBootMillis(); |
| // Most cases don't need delay, check it first to avoid unnecessary work. |
| if (delayMs == 0) { |
| continueToStopWifi(); |
| return; |
| } |
| |
| mImsMmTelManager = ImsMmTelManager.createForSubscriptionId(mActiveSubId); |
| if (mImsMmTelManager == null || !postDelayed(mRunnable, delayMs)) { |
| // if no delay or failed to add runnable, stop Wifi immediately. |
| continueToStopWifi(); |
| return; |
| } |
| |
| mIsDeferring = true; |
| Log.d(getTag(), "Start DeferWifiOff handler with deferring time " |
| + delayMs + " ms for subId: " + mActiveSubId); |
| try { |
| mImsMmTelManager.registerImsRegistrationCallback( |
| new HandlerExecutor(new Handler(mLooper)), |
| mImsRegistrationCallback); |
| } catch (RuntimeException | ImsException e) { |
| Log.e(getTag(), "registerImsRegistrationCallback failed", e); |
| continueToStopWifi(); |
| return; |
| } |
| |
| mImsRequest = new NetworkRequest.Builder() |
| .addCapability(NetworkCapabilities.NET_CAPABILITY_IMS) |
| .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR) |
| .build(); |
| |
| mConnectivityManager = |
| (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); |
| |
| mConnectivityManager.registerNetworkCallback(mImsRequest, mImsNetworkCallback, |
| new Handler(mLooper)); |
| } |
| |
| private void continueToStopWifi() { |
| Log.d(getTag(), "The target role " + mTargetRole); |
| |
| int deferringDurationMillis = |
| (int) (mClock.getElapsedSinceBootMillis() - mDeferringStartTimeMillis); |
| boolean isTimedOut = mMaximumDeferringTimeMillis > 0 |
| && deferringDurationMillis >= mMaximumDeferringTimeMillis; |
| if (mTargetRole == null) { |
| Log.d(getTag(), "Continue to stop wifi"); |
| mStateMachine.captureObituaryAndQuitNow(); |
| mWifiMetrics.noteWifiOff(mIsDeferring, isTimedOut, deferringDurationMillis); |
| } else if (mTargetRole == ROLE_CLIENT_SCAN_ONLY) { |
| if (!mWifiNative.switchClientInterfaceToScanMode(mClientInterfaceName)) { |
| mModeListener.onStartFailure(); |
| } else { |
| mStateMachine.sendMessage( |
| ClientModeStateMachine.CMD_SWITCH_TO_SCAN_ONLY_MODE_CONTINUE); |
| mWifiMetrics.noteWifiOff(mIsDeferring, isTimedOut, deferringDurationMillis); |
| } |
| } else { |
| updateConnectModeState(WifiManager.WIFI_STATE_ENABLED, |
| WifiManager.WIFI_STATE_DISABLING); |
| } |
| |
| if (!mIsDeferring) return; |
| |
| Log.d(getTag(), "Stop DeferWifiOff handler."); |
| removeCallbacks(mRunnable); |
| if (mImsMmTelManager != null) { |
| try { |
| mImsMmTelManager.unregisterImsRegistrationCallback(mImsRegistrationCallback); |
| } catch (RuntimeException e) { |
| Log.e(getTag(), "unregisterImsRegistrationCallback failed", e); |
| } |
| } |
| |
| if (mConnectivityManager != null) { |
| mConnectivityManager.unregisterNetworkCallback(mImsNetworkCallback); |
| } |
| |
| mIsDeferring = false; |
| } |
| } |
| |
| /** |
| * Get deferring time before turning off WiFi. |
| */ |
| private int getWifiOffDeferringTimeMs() { |
| SubscriptionManager subscriptionManager = (SubscriptionManager) mContext.getSystemService( |
| Context.TELEPHONY_SUBSCRIPTION_SERVICE); |
| if (subscriptionManager == null) { |
| Log.d(getTag(), "SubscriptionManager not found"); |
| return 0; |
| } |
| |
| List<SubscriptionInfo> subInfoList = subscriptionManager.getActiveSubscriptionInfoList(); |
| if (subInfoList == null) { |
| Log.d(getTag(), "Active SubscriptionInfo list not found"); |
| return 0; |
| } |
| |
| // Get the maximum delay for the active subscription latched on IWLAN. |
| int maxDelay = 0; |
| for (SubscriptionInfo subInfo : subInfoList) { |
| int curDelay = getWifiOffDeferringTimeMs(subInfo.getSubscriptionId()); |
| if (curDelay > maxDelay) { |
| maxDelay = curDelay; |
| mActiveSubId = subInfo.getSubscriptionId(); |
| } |
| } |
| return maxDelay; |
| } |
| |
| private int getWifiOffDeferringTimeMs(int subId) { |
| if (subId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) { |
| Log.d(getTag(), "Invalid Subscription ID: " + subId); |
| return 0; |
| } |
| |
| ImsMmTelManager imsMmTelManager = ImsMmTelManager.createForSubscriptionId(subId); |
| // If no wifi calling, no delay |
| if (!imsMmTelManager.isAvailable( |
| MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_VOICE, |
| ImsRegistrationImplBase.REGISTRATION_TECH_IWLAN)) { |
| Log.d(getTag(), "IMS not registered over IWLAN for subId: " + subId); |
| return 0; |
| } |
| |
| CarrierConfigManager configManager = |
| (CarrierConfigManager) mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE); |
| PersistableBundle config = configManager.getConfigForSubId(subId); |
| return (config != null) |
| ? config.getInt(CarrierConfigManager.Ims.KEY_WIFI_OFF_DEFERRING_TIME_MILLIS_INT) |
| : 0; |
| } |
| |
| @Override |
| public ClientRole getRole() { |
| return mRole; |
| } |
| |
| /** Set the role of this ClientModeManager */ |
| public void setRole(ClientRole role) { |
| if (role == ROLE_CLIENT_SCAN_ONLY) { |
| mTargetRole = role; |
| // Switch client mode manager to scan only mode. |
| mStateMachine.sendMessage(ClientModeStateMachine.CMD_SWITCH_TO_SCAN_ONLY_MODE); |
| } else if (role instanceof ClientConnectivityRole) { |
| mTargetRole = role; |
| // Switch client mode manager to connect mode. |
| mStateMachine.sendMessage(ClientModeStateMachine.CMD_SWITCH_TO_CONNECT_MODE, role); |
| } |
| } |
| |
| @Override |
| public String getInterfaceName() { |
| return mClientInterfaceName; |
| } |
| |
| /** |
| * Keep stopped {@link ClientModeImpl} instances so that they can be dumped to aid debugging. |
| * |
| * TODO(b/160283853): Find a smarter way to evict old ClientModeImpls |
| */ |
| private static class Graveyard { |
| private static final int INSTANCES_TO_KEEP = 3; |
| |
| private final ArrayDeque<ClientModeImpl> mClientModeImpls = new ArrayDeque<>(); |
| |
| /** |
| * Add this stopped {@link ClientModeImpl} to the graveyard, and evict the oldest |
| * ClientModeImpl if the graveyard is full. |
| */ |
| void inter(ClientModeImpl clientModeImpl) { |
| if (mClientModeImpls.size() == INSTANCES_TO_KEEP) { |
| mClientModeImpls.removeFirst(); |
| } |
| mClientModeImpls.addLast(clientModeImpl); |
| } |
| |
| /** Dump the contents of the graveyard. */ |
| void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.println("Dump of ConcreteClientModeManager.Graveyard"); |
| pw.println("Stopped ClientModeImpls: " + mClientModeImpls.size() + " total"); |
| int i = 0; |
| for (ClientModeImpl clientModeImpl : mClientModeImpls) { |
| pw.println("Dump of stopped ClientModeImpl " + i); |
| clientModeImpl.dump(fd, pw, args); |
| i++; |
| } |
| pw.println(); |
| } |
| } |
| |
| /** |
| * Dump info about this ClientMode manager. |
| */ |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.println("--Dump of ClientModeManager--"); |
| |
| pw.println("current StateMachine mode: " + getCurrentStateName()); |
| pw.println("mRole: " + mRole); |
| pw.println("mTargetRole: " + mTargetRole); |
| pw.println("mClientInterfaceName: " + mClientInterfaceName); |
| pw.println("mIfaceIsUp: " + mIfaceIsUp); |
| mStateMachine.dump(fd, pw, args); |
| pw.println(); |
| pw.println("Wi-Fi is " + syncGetWifiStateByName()); |
| if (mClientModeImpl == null) { |
| pw.println("No active ClientModeImpl instance"); |
| } else { |
| mClientModeImpl.dump(fd, pw, args); |
| } |
| mGraveyard.dump(fd, pw, args); |
| pw.println(); |
| } |
| |
| private String getCurrentStateName() { |
| IState currentState = mStateMachine.getCurrentState(); |
| |
| if (currentState != null) { |
| return currentState.getName(); |
| } |
| |
| return "StateMachine not active"; |
| } |
| |
| /** |
| * Update Wifi state and send the broadcast. |
| * |
| * @param newState new Wifi state |
| * @param currentState current wifi state |
| */ |
| private void updateConnectModeState(int newState, int currentState) { |
| if (newState == WifiManager.WIFI_STATE_UNKNOWN) { |
| // do not need to broadcast failure to system |
| return; |
| } |
| if (mRole != ROLE_CLIENT_PRIMARY) { |
| // do not raise public broadcast unless this is the primary client mode manager |
| return; |
| } |
| |
| setWifiStateForApiCalls(newState); |
| |
| final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_WIFI_STATE, newState); |
| intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, currentState); |
| mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void setWifiStateForApiCalls(int newState) { |
| switch (newState) { |
| case WIFI_STATE_DISABLING: |
| case WIFI_STATE_DISABLED: |
| case WIFI_STATE_ENABLING: |
| case WIFI_STATE_ENABLED: |
| case WIFI_STATE_UNKNOWN: |
| if (mVerboseLoggingEnabled) { |
| Log.d(getTag(), "setting wifi state to: " + newState); |
| } |
| mWifiState.set(newState); |
| break; |
| default: |
| Log.d(getTag(), "attempted to set an invalid state: " + newState); |
| break; |
| } |
| } |
| |
| private String syncGetWifiStateByName() { |
| switch (mWifiState.get()) { |
| case WIFI_STATE_DISABLING: |
| return "disabling"; |
| case WIFI_STATE_DISABLED: |
| return "disabled"; |
| case WIFI_STATE_ENABLING: |
| return "enabling"; |
| case WIFI_STATE_ENABLED: |
| return "enabled"; |
| case WIFI_STATE_UNKNOWN: |
| return "unknown state"; |
| default: |
| return "[invalid state]"; |
| } |
| } |
| |
| private class ClientModeStateMachine extends StateMachine { |
| // Commands for the state machine. |
| public static final int CMD_START = 0; |
| public static final int CMD_SWITCH_TO_SCAN_ONLY_MODE = 1; |
| public static final int CMD_SWITCH_TO_CONNECT_MODE = 2; |
| public static final int CMD_INTERFACE_STATUS_CHANGED = 3; |
| public static final int CMD_INTERFACE_DESTROYED = 4; |
| public static final int CMD_INTERFACE_DOWN = 5; |
| public static final int CMD_SWITCH_TO_SCAN_ONLY_MODE_CONTINUE = 6; |
| private final State mIdleState = new IdleState(); |
| private final State mStartedState = new StartedState(); |
| private final State mScanOnlyModeState = new ScanOnlyModeState(); |
| private final State mConnectModeState = new ConnectModeState(); |
| |
| @Nullable |
| private StateMachineObituary mObituary = null; |
| |
| private final InterfaceCallback mWifiNativeInterfaceCallback = new InterfaceCallback() { |
| @Override |
| public void onDestroyed(String ifaceName) { |
| if (mClientInterfaceName != null && mClientInterfaceName.equals(ifaceName)) { |
| Log.d(getTag(), "STA iface " + ifaceName + " was destroyed, " |
| + "stopping client mode"); |
| |
| // we must immediately clean up state in ClientModeImpl to unregister |
| // all client mode related objects |
| // Note: onDestroyed is only called from the main Wifi thread |
| if (mClientModeImpl == null) { |
| Log.w(getTag(), "Received mWifiNativeInterfaceCallback.onDestroyed " |
| + "callback when no ClientModeImpl instance is active."); |
| } else { |
| mClientModeImpl.handleIfaceDestroyed(); |
| } |
| |
| sendMessage(CMD_INTERFACE_DESTROYED); |
| } |
| } |
| |
| @Override |
| public void onUp(String ifaceName) { |
| if (mClientInterfaceName != null && mClientInterfaceName.equals(ifaceName)) { |
| sendMessage(CMD_INTERFACE_STATUS_CHANGED, 1); |
| } |
| } |
| |
| @Override |
| public void onDown(String ifaceName) { |
| if (mClientInterfaceName != null && mClientInterfaceName.equals(ifaceName)) { |
| sendMessage(CMD_INTERFACE_STATUS_CHANGED, 0); |
| } |
| } |
| }; |
| |
| ClientModeStateMachine(Looper looper) { |
| super(TAG, looper); |
| |
| // CHECKSTYLE:OFF IndentationCheck |
| addState(mIdleState); |
| addState(mStartedState); |
| addState(mScanOnlyModeState, mStartedState); |
| addState(mConnectModeState, mStartedState); |
| // CHECKSTYLE:ON IndentationCheck |
| |
| setInitialState(mIdleState); |
| start(); |
| } |
| |
| void captureObituaryAndQuitNow() { |
| // capture StateMachine LogRecs since we will lose them after we call quitNow() |
| // This is used for debugging. |
| mObituary = new StateMachineObituary(this); |
| |
| quitNow(); |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mObituary == null) { |
| // StateMachine hasn't quit yet, dump `this` via StateMachineObituary's dump() |
| // method for consistency with `else` branch. |
| new StateMachineObituary(this).dump(fd, pw, args); |
| } else { |
| // StateMachine has quit and cleared all LogRecs. |
| // Get them from the obituary instead. |
| mObituary.dump(fd, pw, args); |
| } |
| } |
| |
| private void setRoleInternalAndInvokeCallback(ClientRole newRole) { |
| if (newRole == mRole) return; |
| if (mRole == null) { |
| Log.v(getTag(), "ClientModeManager started in role: " + newRole); |
| mRole = newRole; |
| mModeListener.onStarted(); |
| } else { |
| Log.v(getTag(), "ClientModeManager role changed: " + newRole); |
| mRole = newRole; |
| mModeListener.onRoleChanged(); |
| } |
| } |
| |
| private class IdleState extends State { |
| @Override |
| public void enter() { |
| Log.d(getTag(), "entering IdleState"); |
| mClientInterfaceName = null; |
| mIfaceIsUp = false; |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| switch (message.what) { |
| case CMD_START: |
| // Always start in scan mode first. |
| WorkSource requestorWs = (WorkSource) message.obj; |
| mClientInterfaceName = mWifiNative.setupInterfaceForClientInScanMode( |
| mWifiNativeInterfaceCallback, requestorWs); |
| if (TextUtils.isEmpty(mClientInterfaceName)) { |
| Log.e(getTag(), "Failed to create ClientInterface. Sit in Idle"); |
| mModeListener.onStartFailure(); |
| break; |
| } |
| transitionTo(mScanOnlyModeState); |
| break; |
| default: |
| Log.d(getTag(), "received an invalid message: " + message); |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| private class StartedState extends State { |
| |
| private void onUpChanged(boolean isUp) { |
| if (isUp == mIfaceIsUp) { |
| return; // no change |
| } |
| mIfaceIsUp = isUp; |
| if (!isUp) { |
| // if the interface goes down we should exit and go back to idle state. |
| Log.d(getTag(), "interface down!"); |
| mStateMachine.sendMessage(CMD_INTERFACE_DOWN); |
| } |
| } |
| |
| @Override |
| public void enter() { |
| Log.d(getTag(), "entering StartedState"); |
| mIfaceIsUp = false; |
| onUpChanged(mWifiNative.isInterfaceUp(mClientInterfaceName)); |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| switch (message.what) { |
| case CMD_START: |
| // Already started, ignore this command. |
| break; |
| case CMD_SWITCH_TO_CONNECT_MODE: |
| // could be any one of possible connect mode roles. |
| setRoleInternalAndInvokeCallback((ClientRole) message.obj); |
| updateConnectModeState(WifiManager.WIFI_STATE_ENABLING, |
| WifiManager.WIFI_STATE_DISABLED); |
| if (!mWifiNative.switchClientInterfaceToConnectivityMode( |
| mClientInterfaceName)) { |
| updateConnectModeState(WifiManager.WIFI_STATE_UNKNOWN, |
| WifiManager.WIFI_STATE_ENABLING); |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLED, |
| WifiManager.WIFI_STATE_UNKNOWN); |
| mModeListener.onStartFailure(); |
| break; |
| } |
| transitionTo(mConnectModeState); |
| break; |
| case CMD_SWITCH_TO_SCAN_ONLY_MODE: |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLING, |
| WifiManager.WIFI_STATE_ENABLED); |
| mDeferStopHandler.start(getWifiOffDeferringTimeMs()); |
| break; |
| case CMD_SWITCH_TO_SCAN_ONLY_MODE_CONTINUE: |
| transitionTo(mScanOnlyModeState); |
| break; |
| case CMD_INTERFACE_DOWN: |
| Log.e(getTag(), "Detected an interface down, reporting failure to " |
| + "SelfRecovery"); |
| mSelfRecovery.trigger(SelfRecovery.REASON_STA_IFACE_DOWN); |
| transitionTo(mIdleState); |
| break; |
| case CMD_INTERFACE_STATUS_CHANGED: |
| boolean isUp = message.arg1 == 1; |
| onUpChanged(isUp); |
| break; |
| case CMD_INTERFACE_DESTROYED: |
| Log.d(getTag(), "interface destroyed - client mode stopping"); |
| mClientInterfaceName = null; |
| transitionTo(mIdleState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| |
| /** |
| * Clean up state, unregister listeners and update wifi state. |
| */ |
| @Override |
| public void exit() { |
| if (mClientInterfaceName != null) { |
| mWifiNative.teardownInterface(mClientInterfaceName); |
| mClientInterfaceName = null; |
| mIfaceIsUp = false; |
| } |
| |
| // once we leave started, nothing else to do... stop the state machine |
| mRole = null; |
| mStateMachine.captureObituaryAndQuitNow(); |
| mModeListener.onStopped(); |
| } |
| } |
| |
| private class ScanOnlyModeState extends State { |
| @Override |
| public void enter() { |
| Log.d(getTag(), "entering ScanOnlyModeState"); |
| setRoleInternalAndInvokeCallback(ROLE_CLIENT_SCAN_ONLY); |
| |
| mWakeupController.start(); |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| switch (message.what) { |
| case CMD_SWITCH_TO_SCAN_ONLY_MODE: |
| // Already in scan only mode, ignore this command. |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| |
| @Override |
| public void exit() { |
| mWakeupController.stop(); |
| } |
| } |
| |
| private class ConnectModeState extends State { |
| @Override |
| public void enter() { |
| Log.d(getTag(), "entering ConnectModeState"); |
| if (mClientInterfaceName == null) { |
| Log.e(getTag(), "Supposed to start ClientModeImpl, but iface is null!"); |
| } else { |
| if (mClientModeImpl != null) { |
| Log.e(getTag(), "ConnectModeState.enter(): mClientModeImpl is already " |
| + "instantiated?!"); |
| } |
| mClientModeImpl = mWifiInjector.makeClientModeImpl( |
| mClientInterfaceName, ConcreteClientModeManager.this); |
| } |
| updateConnectModeState(WifiManager.WIFI_STATE_ENABLED, |
| WifiManager.WIFI_STATE_ENABLING); |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| switch (message.what) { |
| case CMD_SWITCH_TO_CONNECT_MODE: |
| // Already in connect mode, only switching the connectivity roles. |
| setRoleInternalAndInvokeCallback((ClientRole) message.obj); |
| break; |
| case CMD_SWITCH_TO_SCAN_ONLY_MODE: |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLING, |
| WifiManager.WIFI_STATE_ENABLED); |
| return NOT_HANDLED; // Handled in StartedState. |
| case CMD_INTERFACE_DOWN: |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLING, |
| WifiManager.WIFI_STATE_UNKNOWN); |
| return NOT_HANDLED; // Handled in StartedState. |
| case CMD_INTERFACE_STATUS_CHANGED: |
| boolean isUp = message.arg1 == 1; |
| if (isUp == mIfaceIsUp) { |
| break; // no change |
| } |
| if (!isUp) { |
| if (!mWifiGlobals.isConnectedMacRandomizationEnabled()) { |
| // Handle the error case where our underlying interface went down if |
| // we do not have mac randomization enabled (b/72459123). |
| // if the interface goes down we should exit and go back to idle |
| // state. |
| updateConnectModeState(WifiManager.WIFI_STATE_UNKNOWN, |
| WifiManager.WIFI_STATE_ENABLED); |
| } else { |
| return HANDLED; // For MAC randomization, ignore... |
| } |
| } |
| return NOT_HANDLED; // Handled in StartedState. |
| case CMD_INTERFACE_DESTROYED: |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLING, |
| WifiManager.WIFI_STATE_ENABLED); |
| return NOT_HANDLED; // Handled in StartedState. |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| |
| @Override |
| public void exit() { |
| updateConnectModeState(WifiManager.WIFI_STATE_DISABLED, |
| WifiManager.WIFI_STATE_DISABLING); |
| |
| if (mClientModeImpl == null) { |
| Log.w(getTag(), "ConnectModeState.exit(): mClientModeImpl is already null?!"); |
| } else { |
| mClientModeImpl.stop(); |
| mGraveyard.inter(mClientModeImpl); |
| mClientModeImpl = null; |
| } |
| } |
| } |
| } |
| |
| @Override |
| public int syncGetWifiState() { |
| return mWifiState.get(); |
| } |
| |
| private ClientMode getClientMode() { |
| if (mClientModeImpl == null) { |
| return mDefaultClientModeImpl; |
| } else { |
| return mClientModeImpl; |
| } |
| } |
| |
| /* |
| * Note: These are simple wrappers over methods to {@link ClientModeImpl}. |
| * TODO(next CL in the stack): get rid of these methods and instead just expose a |
| * getClientMode() method |
| */ |
| |
| @Override |
| public void connectNetwork(NetworkUpdateResult result, ActionListenerWrapper wrapper, |
| int callingUid) { |
| getClientMode().connectNetwork(result, wrapper, callingUid); |
| } |
| |
| @Override |
| public void saveNetwork(NetworkUpdateResult result, ActionListenerWrapper wrapper, |
| int callingUid) { |
| getClientMode().saveNetwork(result, wrapper, callingUid); |
| } |
| |
| @Override |
| public void disconnect() { |
| getClientMode().disconnect(); |
| } |
| |
| @Override |
| public void reconnect(WorkSource ws) { |
| getClientMode().reconnect(ws); |
| } |
| |
| @Override |
| public void reassociate() { |
| getClientMode().reassociate(); |
| } |
| |
| @Override |
| public void startConnectToNetwork(int networkId, int uid, String bssid) { |
| getClientMode().startConnectToNetwork(networkId, uid, bssid); |
| } |
| |
| @Override |
| public void startRoamToNetwork(int networkId, ScanResult scanResult) { |
| getClientMode().startRoamToNetwork(networkId, scanResult); |
| } |
| |
| @Override |
| public boolean setWifiConnectedNetworkScorer( |
| IBinder binder, IWifiConnectedNetworkScorer scorer) { |
| return getClientMode().setWifiConnectedNetworkScorer(binder, scorer); |
| } |
| |
| @Override |
| public void clearWifiConnectedNetworkScorer() { |
| getClientMode().clearWifiConnectedNetworkScorer(); |
| } |
| |
| @Override |
| public void resetSimAuthNetworks(@ClientModeImpl.ResetSimReason int resetReason) { |
| getClientMode().resetSimAuthNetworks(resetReason); |
| } |
| |
| @Override |
| public void onBluetoothConnectionStateChanged() { |
| getClientMode().onBluetoothConnectionStateChanged(); |
| } |
| |
| @Override |
| public WifiInfo syncRequestConnectionInfo() { |
| return getClientMode().syncRequestConnectionInfo(); |
| } |
| |
| @Override |
| public boolean syncQueryPasspointIcon(long bssid, String fileName) { |
| return getClientMode().syncQueryPasspointIcon(bssid, fileName); |
| } |
| |
| @Override |
| public Network syncGetCurrentNetwork() { |
| return getClientMode().syncGetCurrentNetwork(); |
| } |
| |
| @Override |
| public DhcpResultsParcelable syncGetDhcpResultsParcelable() { |
| return getClientMode().syncGetDhcpResultsParcelable(); |
| } |
| |
| @Override |
| public long syncGetSupportedFeatures() { |
| return getClientMode().syncGetSupportedFeatures(); |
| } |
| |
| @Override |
| public boolean syncStartSubscriptionProvisioning(int callingUid, OsuProvider provider, |
| IProvisioningCallback callback) { |
| return getClientMode().syncStartSubscriptionProvisioning( |
| callingUid, provider, callback); |
| } |
| |
| @Override |
| public boolean isWifiStandardSupported(@WifiAnnotations.WifiStandard int standard) { |
| return getClientMode().isWifiStandardSupported(standard); |
| } |
| |
| @Override |
| public void enableTdls(String remoteMacAddress, boolean enable) { |
| getClientMode().enableTdls(remoteMacAddress, enable); |
| } |
| |
| @Override |
| public void dumpIpClient(FileDescriptor fd, PrintWriter pw, String[] args) { |
| getClientMode().dumpIpClient(fd, pw, args); |
| } |
| |
| @Override |
| public void dumpWifiScoreReport(FileDescriptor fd, PrintWriter pw, String[] args) { |
| getClientMode().dumpWifiScoreReport(fd, pw, args); |
| } |
| |
| @Override |
| public void updateLinkLayerStatsRssiAndScoreReport() { |
| getClientMode().updateLinkLayerStatsRssiAndScoreReport(); |
| } |
| |
| @Override |
| public void enableVerboseLogging(boolean verbose) { |
| mVerboseLoggingEnabled = verbose; |
| getClientMode().enableVerboseLogging(verbose); |
| } |
| |
| @Override |
| public String getFactoryMacAddress() { |
| return getClientMode().getFactoryMacAddress(); |
| } |
| |
| @Override |
| public WifiConfiguration getConnectedWifiConfiguration() { |
| return getClientMode().getConnectedWifiConfiguration(); |
| } |
| |
| @Override |
| public WifiConfiguration getConnectingWifiConfiguration() { |
| return getClientMode().getConnectingWifiConfiguration(); |
| } |
| |
| @Override |
| public String getConnectedBssid() { |
| return getClientMode().getConnectedBssid(); |
| } |
| |
| @Override |
| public String getConnectingBssid() { |
| return getClientMode().getConnectingBssid(); |
| } |
| |
| @Override |
| public WifiLinkLayerStats getWifiLinkLayerStats() { |
| return getClientMode().getWifiLinkLayerStats(); |
| } |
| |
| @Override |
| public boolean setPowerSave(boolean ps) { |
| return getClientMode().setPowerSave(ps); |
| } |
| |
| @Override |
| public boolean setLowLatencyMode(boolean enabled) { |
| return getClientMode().setLowLatencyMode(enabled); |
| } |
| |
| @Override |
| public WifiMulticastLockManager.FilterController getMcastLockManagerFilterController() { |
| return getClientMode().getMcastLockManagerFilterController(); |
| } |
| |
| @Override |
| public boolean isConnected() { |
| return getClientMode().isConnected(); |
| } |
| |
| @Override |
| public boolean isDisconnected() { |
| return getClientMode().isDisconnected(); |
| } |
| |
| @Override |
| public boolean isSupplicantTransientState() { |
| return getClientMode().isSupplicantTransientState(); |
| } |
| |
| @Override |
| public void probeLink(WifiNl80211Manager.SendMgmtFrameCallback callback, int mcs) { |
| getClientMode().probeLink(callback, mcs); |
| } |
| |
| @Override |
| public void sendMessageToClientModeImpl(Message msg) { |
| getClientMode().sendMessageToClientModeImpl(msg); |
| } |
| } |
