Asynchronous API (e04653cb) · Commits · e / os / android_frameworks_base

services/java/com/android/server/WifiService.java

+19 −0

Original line number	Diff line number	Diff line
		@@ -766,6 +766,25 @@ public class WifiService extends IWifiManager.Stub {
		mWifiStateMachine.clearBlacklist();
		}

		public void connectNetworkWithId(int networkId) {
		enforceChangePermission();
		mWifiStateMachine.connectNetwork(networkId);
		}

		public void connectNetworkWithConfig(WifiConfiguration config) {
		enforceChangePermission();
		mWifiStateMachine.connectNetwork(config);
		}

		public void saveNetwork(WifiConfiguration config) {
		enforceChangePermission();
		mWifiStateMachine.saveNetwork(config);
		}

		public void forgetNetwork(int netId) {
		enforceChangePermission();
		mWifiStateMachine.forgetNetwork(netId);
		}

		private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
		@Override

wifi/java/android/net/wifi/IWifiManager.aidl

+8 −0

Original line number	Diff line number	Diff line
		@@ -93,5 +93,13 @@ interface IWifiManager
		void addToBlacklist(String bssid);

		void clearBlacklist();

		void connectNetworkWithConfig(in WifiConfiguration wifiConfig);

		void connectNetworkWithId(int networkId);

		void saveNetwork(in WifiConfiguration wifiConfig);

		void forgetNetwork(int networkId);
		}

wifi/java/android/net/wifi/WifiManager.java

+92 −1

Original line number	Diff line number	Diff line
		@@ -274,7 +274,14 @@ public class WifiManager {
		* @see #ERROR_AUTHENTICATING
		*/
		public static final String EXTRA_SUPPLICANT_ERROR = "supplicantError";

		/**
		* Broadcast intent action indicating that the supplicant configuration changed.
		* This can be as a result of adding/updating/deleting a network
		* @hide
		*/
		@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
		public static final String SUPPLICANT_CONFIG_CHANGED_ACTION =
		"android.net.wifi.supplicant.CONFIG_CHANGE";
		/**
		* An access point scan has completed, and results are available from the supplicant.
		* Call {@link #getScanResults()} to obtain the results.
		@@ -929,6 +936,90 @@ public class WifiManager {
		}
		}

		/* TODO: deprecate synchronous API and open up the following API */
		/**
		* Connect to a network with the given configuration. The network also
		* gets added to the supplicant configuration.
		*
		* For a new network, this function is used instead of a
		* sequence of addNetwork(), enableNetwork(), saveConfiguration() and
		* reconnect()
		*
		* @param config the set of variables that describe the configuration,
		* contained in a {@link WifiConfiguration} object.
		* @hide
		*/
		public void connectNetwork(WifiConfiguration config) {
		if (config == null) {
		return;
		}
		try {
		mService.connectNetworkWithConfig(config);
		} catch (RemoteException e) { }
		}

		/**
		* Connect to a network with the given networkId.
		*
		* This function is used instead of a enableNetwork(), saveConfiguration() and
		* reconnect()
		*
		* @param networkId the network id identifiying the network in the
		* supplicant configuration list
		* @hide
		*/
		public void connectNetwork(int networkId) {
		if (networkId < 0) {
		return;
		}
		try {
		mService.connectNetworkWithId(networkId);
		} catch (RemoteException e) { }
		}

		/**
		* Save the given network in the supplicant config. If the network already
		* exists, the configuration is updated. A new network is enabled
		* by default.
		*
		* For a new network, this function is used instead of a
		* sequence of addNetwork(), enableNetwork() and saveConfiguration().
		*
		* For an existing network, it accomplishes the task of updateNetwork()
		* and saveConfiguration()
		*
		* @param config the set of variables that describe the configuration,
		* contained in a {@link WifiConfiguration} object.
		* @hide
		*/
		public void saveNetwork(WifiConfiguration config) {
		if (config == null) {
		return;
		}
		try {
		mService.saveNetwork(config);
		} catch (RemoteException e) { }
		}

		/**
		* Delete the network in the supplicant config.
		*
		* This function is used instead of a sequence of removeNetwork()
		* and saveConfiguration().
		*
		* @param config the set of variables that describe the configuration,
		* contained in a {@link WifiConfiguration} object.
		* @hide
		*/
		public void forgetNetwork(int netId) {
		if (netId < 0) {
		return;
		}
		try {
		mService.forgetNetwork(netId);
		} catch (RemoteException e) { }
		}

		/**
		* Allows an application to keep the Wi-Fi radio awake.
		* Normally the Wi-Fi radio may turn off when the user has not used the device in a while.

wifi/java/android/net/wifi/WifiStateMachine.java

+129 −3

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ import android.net.NetworkUtils;
		import android.net.ConnectivityManager;
		import android.net.NetworkInfo.DetailedState;
		import android.net.NetworkProperties;
		import android.net.wifi.WifiConfiguration.Status;
		import android.os.Binder;
		import android.os.Message;
		import android.os.Parcelable;
		@@ -151,6 +152,10 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		private WifiInfo mWifiInfo;
		private NetworkInfo mNetworkInfo;
		private SupplicantStateTracker mSupplicantStateTracker;
		/* Tracks the highest priority of configured networks */
		private int mLastPriority = -1;
		/* Tracks if all networks need to be enabled */
		private boolean mEnableAllNetworks = false;

		// Event log tags (must be in sync with event-log-tags)
		private static final int EVENTLOG_WIFI_STATE_CHANGED = 50021;
		@@ -283,6 +288,27 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		private static final int CMD_START_PACKET_FILTERING = 88;
		/* Clear packet filter */
		private static final int CMD_STOP_PACKET_FILTERING = 89;
		/* Connect to a specified network (network id
		* or WifiConfiguration) This involves increasing
		* the priority of the network, enabling the network
		* (while disabling others) and issuing a reconnect.
		* Note that CMD_RECONNECT just does a reconnect to
		* an existing network. All the networks get enabled
		* upon a successful connection or a failure.
		*/
		private static final int CMD_CONNECT_NETWORK = 90;
		/* Save the specified network. This involves adding
		* an enabled network (if new) and updating the
		* config and issuing a save on supplicant config.
		*/
		private static final int CMD_SAVE_NETWORK = 91;
		/* Delete the specified network. This involves
		* removing the network and issuing a save on
		* supplicant config.
		*/
		private static final int CMD_FORGET_NETWORK = 92;



		/**
		* Interval in milliseconds between polling for connection
		@@ -704,6 +730,22 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		sendMessage(obtainMessage(CMD_CLEAR_BLACKLIST));
		}

		public void connectNetwork(int netId) {
		sendMessage(obtainMessage(CMD_CONNECT_NETWORK, netId, 0));
		}

		public void connectNetwork(WifiConfiguration wifiConfig) {
		sendMessage(obtainMessage(CMD_CONNECT_NETWORK, wifiConfig));
		}

		public void saveNetwork(WifiConfiguration wifiConfig) {
		sendMessage(obtainMessage(CMD_SAVE_NETWORK, wifiConfig));
		}

		public void forgetNetwork(int netId) {
		sendMessage(obtainMessage(CMD_FORGET_NETWORK, netId, 0));
		}

		/**
		* Get detailed status of the connection
		*
		@@ -1354,6 +1396,11 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		mContext.sendStickyBroadcast(intent);
		}

		private void sendSupplicantConfigChangedBroadcast() {
		Intent intent = new Intent(WifiManager.SUPPLICANT_CONFIG_CHANGED_ACTION);
		mContext.sendBroadcast(intent);
		}

		private void sendSupplicantConnectionChangedBroadcast(boolean connected) {
		if (!ActivityManagerNative.isSystemReady()) return;

		@@ -1420,6 +1467,20 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		return -1;
		}

		private void enableAllNetworks() {
		if (mEnableAllNetworks) {
		mEnableAllNetworks = false;
		List<WifiConfiguration> configList = getConfiguredNetworksNative();
		for (WifiConfiguration config : configList) {
		if(config != null && config.status == Status.DISABLED) {
		WifiNative.enableNetworkCommand(config.networkId, false);
		}
		}
		WifiNative.saveConfigCommand();
		sendSupplicantConfigChangedBroadcast();
		}
		}

		private int addOrUpdateNetworkNative(WifiConfiguration config) {
		/*
		* If the supplied networkId is -1, we create a new empty
		@@ -1613,7 +1674,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {

		private List<WifiConfiguration> getConfiguredNetworksNative() {
		String listStr = WifiNative.listNetworksCommand();

		mLastPriority = 0;
		List<WifiConfiguration> networks =
		new ArrayList<WifiConfiguration>();
		if (listStr == null)
		@@ -1641,6 +1702,9 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		config.status = WifiConfiguration.Status.ENABLED;
		}
		readNetworkVariables(config);
		if (config.priority > mLastPriority) {
		mLastPriority = config.priority;
		}
		networks.add(config);
		}
		return networks;
		@@ -2048,6 +2112,9 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		case CMD_SET_BLUETOOTH_SCAN_MODE:
		case CMD_SET_NUM_ALLOWED_CHANNELS:
		case CMD_REQUEST_CM_WAKELOCK:
		case CMD_CONNECT_NETWORK:
		case CMD_SAVE_NETWORK:
		case CMD_FORGET_NETWORK:
		break;
		default:
		Log.e(TAG, "Error! unhandled message" + message);
		@@ -2397,6 +2464,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		public boolean processMessage(Message message) {
		if (DBG) Log.d(TAG, getName() + message.toString() + "\n");
		SyncParams syncParams;
		WifiConfiguration config;
		switch(message.what) {
		case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */
		Log.d(TAG, "Stop supplicant received");
		@@ -2434,9 +2502,10 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		case CMD_ADD_OR_UPDATE_NETWORK:
		EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
		syncParams = (SyncParams) message.obj;
		WifiConfiguration config = (WifiConfiguration) syncParams.mParameter;
		config = (WifiConfiguration) syncParams.mParameter;
		syncParams.mSyncReturn.intValue = addOrUpdateNetworkNative(config);
		notifyOnMsgObject(message);
		sendSupplicantConfigChangedBroadcast();
		break;
		case CMD_REMOVE_NETWORK:
		EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
		@@ -2449,6 +2518,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		/* asynchronous handling */
		WifiNative.removeNetworkCommand(message.arg1);
		}
		sendSupplicantConfigChangedBroadcast();
		break;
		case CMD_ENABLE_NETWORK:
		EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
		@@ -2462,6 +2532,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		/* asynchronous handling */
		WifiNative.enableNetworkCommand(message.arg1, message.arg2 == 1);
		}
		sendSupplicantConfigChangedBroadcast();
		break;
		case CMD_DISABLE_NETWORK:
		EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
		@@ -2474,6 +2545,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		/* asynchronous handling */
		WifiNative.disableNetworkCommand(message.arg1);
		}
		sendSupplicantConfigChangedBroadcast();
		break;
		case CMD_BLACKLIST_NETWORK:
		EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
		@@ -2526,6 +2598,21 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		case CMD_SET_SCAN_MODE:
		mIsScanMode = (message.arg1 == SCAN_ONLY_MODE);
		break;
		case CMD_SAVE_NETWORK:
		config = (WifiConfiguration) message.obj;
		int netId = addOrUpdateNetworkNative(config);
		/* enable a new network */
		if (config.networkId < 0) {
		WifiNative.enableNetworkCommand(netId, false);
		}
		WifiNative.saveConfigCommand();
		sendSupplicantConfigChangedBroadcast();
		break;
		case CMD_FORGET_NETWORK:
		WifiNative.removeNetworkCommand(message.arg1);
		WifiNative.saveConfigCommand();
		sendSupplicantConfigChangedBroadcast();
		break;
		default:
		return NOT_HANDLED;
		}
		@@ -2836,6 +2923,41 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		WifiNative.reassociateCommand();
		}
		break;
		case CMD_CONNECT_NETWORK:
		int netId = message.arg1;
		WifiConfiguration config = (WifiConfiguration) message.obj;
		if (config != null) {
		netId = addOrUpdateNetworkNative(config);
		}
		// Reset the priority of each network at start or if it goes too high.
		if (mLastPriority == -1 \|\| mLastPriority > 1000000) {
		List<WifiConfiguration> configList = getConfiguredNetworksNative();
		for (WifiConfiguration conf : configList) {
		if (conf.networkId != -1) {
		conf.priority = 0;
		addOrUpdateNetworkNative(conf);
		}
		}
		mLastPriority = 0;
		}

		// Set to the highest priority and save the configuration.
		config = new WifiConfiguration();
		config.networkId = netId;
		config.priority = ++mLastPriority;

		addOrUpdateNetworkNative(config);
		WifiNative.saveConfigCommand();

		// Connect to network by disabling others.
		WifiNative.enableNetworkCommand(netId, true);
		WifiNative.reconnectCommand();
		mEnableAllNetworks = true;
		/* Dont send a supplicant config change broadcast here
		* as it is better to not expose the temporary disabling
		* of all networks
		*/
		break;
		case SCAN_RESULTS_EVENT:
		/* Set the scan setting back to "connect" mode */
		WifiNative.setScanResultHandlingCommand(CONNECT_MODE);
		@@ -2848,7 +2970,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		mWifiInfo.setBSSID(mLastBssid = stateChangeResult.BSSID);
		mWifiInfo.setNetworkId(stateChangeResult.networkId);
		mLastNetworkId = stateChangeResult.networkId;

		enableAllNetworks();
		/* send event to CM & network change broadcast */
		setDetailedState(DetailedState.OBTAINING_IPADDR);
		sendNetworkStateChangeBroadcast(mLastBssid);
		@@ -2857,6 +2979,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		break;
		case NETWORK_DISCONNECTION_EVENT:
		Log.d(TAG,"Network connection lost");
		enableAllNetworks();
		handleNetworkDisconnect();
		transitionTo(mDisconnectedState);
		break;
		@@ -2991,6 +3114,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		Log.e(TAG, "Failed " +
		mReconnectCount + " times, Disabling " + mLastNetworkId);
		WifiNative.disableNetworkCommand(mLastNetworkId);
		sendSupplicantConfigChangedBroadcast();
		}

		/* DHCP times out after about 30 seconds, we do a
		@@ -3419,6 +3543,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		WifiNative.disableNetworkCommand(mWifiInfo.getNetworkId());
		mPasswordKeyMayBeIncorrect = false;
		sendSupplicantStateChangedBroadcast(stateChangeResult, true);
		sendSupplicantConfigChangedBroadcast();
		}
		else {
		sendSupplicantStateChangedBroadcast(stateChangeResult, false);
		@@ -3478,6 +3603,7 @@ public class WifiStateMachine extends HierarchicalStateMachine {
		}
		if (mLoopDetectCount > MAX_SUPPLICANT_LOOP_ITERATIONS) {
		WifiNative.disableNetworkCommand(stateChangeResult.networkId);
		sendSupplicantConfigChangedBroadcast();
		mLoopDetectCount = 0;
		}