[Wifi] graduate from Qt.labs.wifi 0.1 to B2Qt.Wifi 1.0

- Make wifi library available from c++
   1) included with "#include <B2QtWifi>", available classes are:
      QWifiDevice, QWifiManager, QWifiConfiguration

- Re-design of API:
   1) connectedSSID -> currentSSID
      get current network from this property instead of networks state change events

   2) networkStateChanaged(QWifiNetwork *) -> networkStateChanged(NetworkState)
      Don't expose QWifiNetwork objects to library users, use data model roles
      instead, no need to pollute API with "read-only" class. The flaws of exposing
      QWifiNetwork become apparent when looking at C++ API.

   3) New BackendState enum for backend state changes events, backendStateChanged(BackendState)
      Initializing backend can be lengthy operation and can block GUI thread,
      same is true for DHCP requests, now these operations are moved into a separate thread
      and backend state change events are delivered asynchronously.

   4) Make WifiManager a Singleton, we don't want several instances starting
      and stopping system processes and it makes global state handling simpler.

   5) Rename Interface -> WifiDevice

   6!) Introducing QWifiConfiguration. This abstraction allows for easy
       way to add new features, whatever we choose to support from:

       http://w1.fi/cgit/hostap/plain/wpa_supplicant/wpa_supplicant.conf

       The idea for it is to be a Qt-style wrapper for "network {}" configurations
       from wpa_supplicant.conf.

       Also this makes life simpler for developers if they know what network they
       will be using, they can omit scanning, listing, selecting parts and do something
       like this instead:

       WifiConfiguration {
          id: config
          ssid: "network name"
          passphrase: "12345678"
       }

       if (!WifiManager.connect(config))
           print("failed to connect: " + WifiManager.lastError)

- Optimizations:
  1) Async. event delivery.

  2) eLinux: Don't use "ifup", it is slow because it starts dhcp
     request even before any network has been configured. Use
     start-stop-daemon and ifconfig directly.

- Bug fixes (many), but most importantly:
  1) Get backend state properly when WifiManager is created.

- Public header cleanup

- Other:
  1) Added categorized logging.
  2) Methods to get/set wifi interface name. Not exposed to qml.

- Missing parts that will be added as a separate patch:
 * [doc] Getting started guide for c++ and qml
 * [doc] Update for qml docs and new docs for c++. The current docs
         are out-of-date.

Task-number: QTEE-649
Task-number: QTEE-810
Change-Id: I7dc8709aed2de622828a119749aef31534a4296d
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

1 files changed, 0 insertions, 818 deletions

diff --git a/src/imports/wifi/qwifimanager.cpp b/src/imports/wifi/qwifimanager.cpp
deleted file mode 100644
index 2574cd2..0000000
--- a/src/imports/wifi/qwifimanager.cpp
+++ /dev/null
@@ -1,818 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc
-** All rights reserved.
-** For any questions to Digia, please use the contact form at
-** http://www.qt.io
-**
-** This file is part of Qt Enterprise Embedded.
-**
-** Licensees holding valid Qt Enterprise licenses may use this file in
-** accordance with the Qt Enterprise License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.
-**
-** If you have questions regarding the use of this file, please use
-** the contact form at http://www.qt.io
-**
-****************************************************************************/
-#include "qwifimanager.h"
-#include "qwifiinterface.h"
-
-#include <QtCore>
-#ifdef Q_OS_ANDROID
-#include <hardware_legacy/wifi.h>
-#include <cutils/sockets.h>
-#include <unistd.h>
-#else
-#include <qwifi_elinux.h>
-#endif
-
-static const char SUPPLICANT_SVC[]  = "init.svc.wpa_supplicant";
-static const char WIFI_INTERFACE[]  = "wifi.interface";
-static const char QT_WIFI_BACKEND[] = "qt.wifi";
-
-static bool QT_WIFI_DEBUG = !qgetenv("QT_WIFI_DEBUG").isEmpty();
-
-const QEvent::Type WIFI_SCAN_RESULTS = (QEvent::Type) (QEvent::User + 2001);
-const QEvent::Type WIFI_CONNECTED = (QEvent::Type) (QEvent::User + 2002);
-const QEvent::Type WIFI_HANDSHAKE_FAILED = (QEvent::Type) (QEvent::User + 2003);
-
-#ifdef Q_OS_ANDROID
-/*
- * Work around API differences between Android versions
- */
-
-static int q_wifi_start_supplicant()
-{
-#if Q_ANDROID_VERSION_MAJOR == 4 && Q_ANDROID_VERSION_MINOR < 1
-    return wifi_start_supplicant();
-#else
-    return wifi_start_supplicant(0);
-#endif
-}
-
-static int q_wifi_stop_supplicant()
-{
-#if Q_ANDROID_VERSION_MAJOR == 4 && Q_ANDROID_VERSION_MINOR < 1
-    return wifi_stop_supplicant();
-#else
-    return wifi_stop_supplicant(0);
-#endif
-}
-
-static int q_wifi_connect_to_supplicant(const char *ifname)
-{
-#if Q_ANDROID_VERSION_MAJOR == 4 && (Q_ANDROID_VERSION_MINOR < 4 && Q_ANDROID_VERSION_MINOR >= 1)
-    return wifi_connect_to_supplicant(ifname);
-#else
-    Q_UNUSED(ifname);
-    return wifi_connect_to_supplicant();
-#endif
-}
-
-static void q_wifi_close_supplicant_connection(const char *ifname)
-{
-#if Q_ANDROID_VERSION_MAJOR == 4 && (Q_ANDROID_VERSION_MINOR < 4 && Q_ANDROID_VERSION_MINOR >= 1)
-    wifi_close_supplicant_connection(ifname);
-#else
-    Q_UNUSED(ifname);
-    wifi_close_supplicant_connection();
-#endif
-}
-
-static int q_wifi_wait_for_event(const char *ifname, char *buf, size_t len)
-{
-#if Q_ANDROID_VERSION_MAJOR == 4 && (Q_ANDROID_VERSION_MINOR < 4 && Q_ANDROID_VERSION_MINOR >= 1)
-    return wifi_wait_for_event(ifname, buf, len);
-#else
-    Q_UNUSED(ifname);
-    return wifi_wait_for_event(buf, len);
-#endif
-}
-
-static int q_wifi_command(const char *ifname, const char *command, char *reply, size_t *reply_len)
-{
-#if Q_ANDROID_VERSION_MAJOR == 4 && (Q_ANDROID_VERSION_MINOR < 4 && Q_ANDROID_VERSION_MINOR >= 1)
-    return wifi_command(ifname, command, reply, reply_len);
-#else
-    Q_UNUSED(ifname);
-    return wifi_command(command, reply, reply_len);
-#endif
-}
-
-/*
- * This function is borrowed from /system/core/libnetutils/dhcp_utils.c
- *
- * Wait for a system property to be assigned a specified value.
- * If desired_value is NULL, then just wait for the property to
- * be created with any value. maxwait is the maximum amount of
- * time in seconds to wait before giving up.
- */
-static const int NAP_TIME = 200; // wait for 200ms at a time when polling for property values
-static int wait_for_property(const char *name, const char *desired_value, int maxwait)
-{
-    char value[PROPERTY_VALUE_MAX] = {'\0'};
-    int maxnaps = (maxwait * 1000) / NAP_TIME;
-
-    if (maxnaps < 1) {
-        maxnaps = 1;
-    }
-
-    while (maxnaps-- > 0) {
-        usleep(NAP_TIME * 1000);
-        if (property_get(name, value, NULL)) {
-            if (desired_value == NULL ||
-                    strcmp(value, desired_value) == 0) {
-                return 0;
-            }
-        }
-    }
-    return -1; /* failure */
-}
-#endif
-
-class QWifiManagerEvent : public QEvent
-{
-public:
-    QWifiManagerEvent(QEvent::Type type, const QByteArray &data = QByteArray())
-        : QEvent(type)
-        , m_data(data)
-    {
-    }
-
-    QByteArray data() const { return m_data; }
-
-private:
-    QByteArray m_data;
-};
-
-class QWifiManagerEventThread : public QThread
-{
-public:
-    QWifiManagerEventThread(QWifiManager *manager, const QByteArray &interface)
-        : m_manager(manager)
-        , m_if(interface)
-    {
-
-    }
-
-    void run() {
-        if (QT_WIFI_DEBUG) qDebug("WiFi event thread is running");
-        QWifiManagerEvent *event = 0;
-        char buffer[2048];
-        while (1) {
-            int size = q_wifi_wait_for_event(m_if.constData(), buffer, sizeof(buffer) - 1);
-            if (size > 0) {
-                buffer[size] = 0;
-                event = 0;
-                if (strstr(buffer, "SCAN-RESULTS")) {
-                    if (m_manager->exitingEventThread()) {
-                        if (QT_WIFI_DEBUG) qDebug() << "Exiting WiFi event thread";
-                        return;
-                    }
-                    event = new QWifiManagerEvent(WIFI_SCAN_RESULTS);
-                } else if (strstr(buffer, "CONNECTED")) {
-                    event = new QWifiManagerEvent(WIFI_CONNECTED);
-                } else if (strstr(buffer, "Handshake failed")) {
-                    event = new QWifiManagerEvent(WIFI_HANDSHAKE_FAILED);
-                } else if (strstr(buffer, "TERMINATING")) {
-                    // stop monitoring for events when supplicant is terminating
-                    return;
-                }
-                if (event)
-                    QCoreApplication::postEvent(m_manager, event);
-            }
-        }
-    }
-
-    QWifiManager *m_manager;
-    QByteArray m_if;
-};
-
-/*!
-    \qmlmodule Qt.labs.wifi 0.1
-    \title WiFi Module
-    \ingroup qtee-qmlmodules
-    \brief Controlling wireless network interfaces.
-
-    Provides QML types for controlling and accessing information about wireless network interfaces.
-
-    The import command for adding these QML types is:
-
-    \code
-    import Qt.labs.wifi 0.1
-    \endcode
-
-    If the module is imported into a namespace, some additional methods become available through the
-    \l Interface element.
-
-    \code
-    import Qt.labs.wifi 0.1 as Wifi
-    \endcode
-
-    \section1 QML Types
-*/
-
-/*!
-
-    \qmltype WifiManager
-    \inqmlmodule Qt.labs.wifi
-    \ingroup wifi-qmltypes
-    \brief Provides information about the WiFi backend and available networks.
-
-    This element is the main interface to the WiFi functionality.
-
- */
-
-/*!
-    \qmlproperty enumeration WifiManager::networkState
-
-    This property holds the current state of the network connection.
-
-    \list
-    \li \e WifiManager.Disconnected - Not connected to any network
-    \li \e WifiManager.Authenticating - Verifying password with the network provider
-    \li \e WifiManager.HandshakeFailed - Incorrect password provided
-    \li \e WifiManager.ObtainingIPAddress - Requesting IP address from DHCP server
-    \li \e WifiManager.DhcpRequestFailed - Could not retrieve IP address
-    \li \e WifiManager.Connected - Ready to process network requests
-    \endlist
-*/
-
-/*!
-    \qmlproperty bool WifiManager::backendReady
-
-    This property holds whether or not the backend has been successfully initialized.
-
-    \code
-    WifiManager {
-        id: wifiManager
-        scanning: backendReady
-    }
-
-    Button {
-        id: wifiOnOffButton
-        text: (wifiManager.backendReady) ? "Switch Off" : "Switch On"
-        onClicked: {
-            if (wifiManager.backendReady) {
-                wifiManager.stop()
-            } else {
-                wifiManager.start()
-            }
-        }
-    }
-    \endcode
-*/
-
-/*!
-    \qmlproperty bool WifiManager::scanning
-
-    This property holds whether or not the backend is scanning for WiFi networks. To
-    preserve battery energy, stop scanning for networks once you are done with configuring a network.
-
-    Before starting to scan for networks, you need to initialize the WiFi backend.
-
-    \sa start
-*/
-
-/*!
-    \qmlproperty string WifiManager::connectedSSID
-
-    This property holds the network name.
-*/
-
-/*!
-    \qmlproperty WifiNetworkListModel WifiManager::networks
-
-    This property holds a list of networks that can be sensed by a device. Use the returned
-    model as data model in ListView, model is updated every 5 seconds.
-
-    WifiNetworkListModel is a simple data model consisting of WifiNetwork objects, accessed with
-    the "network" data role. Instances of WifiNetwork cannot be created directly from the QML system.
-
-    \code
-    WifiManager {
-        id: wifiManager
-        scanning: backendReady
-        Component.onCompleted: start()
-    }
-
-    Component {
-        id: listDelegate
-        Rectangle {
-            id: delegateBackground
-            height: 60
-            width: parent.width
-            color: "#5C5C5C"
-            border.color: "black"
-            border.width: 1
-
-            Text {
-                id: ssidLabel
-                anchors.top: parent.top
-                anchors.left: parent.left
-                anchors.margins: 10
-                font.pixelSize: 20
-                font.bold: true
-                color: "#E6E6E6"
-                text: network.ssid
-            }
-
-            Rectangle {
-                width: Math.max(100 + network.signalStrength, 0) / 100 * parent.width;
-                height: 20
-                radius: 10
-                antialiasing: true
-                anchors.margins: 20
-                anchors.right: parent.right
-                anchors.top: parent.top
-                color: "#BF8888"
-                border.color: "#212126"
-            }
-        }
-    }
-
-
-    ListView {
-        id: networkView
-        anchors.fill: parent
-        model: wifiManager.networks
-        delegate: listDelegate
-    }
-    \endcode
-
-*/
-
-/*!
-    \qmlmethod void WifiManager::start()
-
-    Start an initialization of the WiFi backend.
-
-    \sa stop
- */
-
-/*!
-    \qmlmethod void WifiManager::stop()
-
-    Stop the WiFi backend and shut down all network functionality.
-
-    \sa start
- */
-
-/*!
-    \qmlmethod void WifiManager::connect(WifiNetwork network, const string passphrase)
-
-    Connect to network \a network and use passphrase \a passphrase for authentication.
-
-    \sa disconnect, networkState
- */
-
-/*!
-    \qmlmethod void WifiManager::disconnect()
-
-    Disconnect from currently connected network connection.
-
-    \sa connect, networkState
- */
-
-/*!
-    \qmlsignal void WifiManager::scanningChanged(bool scanning)
-
-    This signal is emitted when device starts or stops to scan for available wifi networks.
-
-    \sa scanning
-
-*/
-
-/*!
-    \qmlsignal void WifiManager::networkStateChanged(WifiNetwork network)
-
-    This signal is emitted whenever changes in a network state occur. Network \a network is the
-    the currently active network connection.
-
-    \sa networkState
-*/
-
-/*!
-    \qmlsignal void WifiManager::backendReadyChanged()
-
-    This signal is emitted when backend has been successfully initialized or shut down.
-
-    \sa start, stop
-*/
-
-/*!
-    \qmlsignal void WifiManager::connectedSSIDChanged(string ssid)
-
-    This signal is emitted when the device has connected to or disconnected from a network.
-    \a ssid contains the name of the connected network, or an empty string if the network was disconnected.
-
-    \sa connect, disconnect
-*/
-
-QWifiManager::QWifiManager()
-    : m_networkListModel(this)
-    , m_eventThread(0)
-    , m_scanTimer(0)
-    , m_scanning(false)
-#ifdef Q_OS_ANDROID
-    , m_daemonClientSocket(0)
-#endif
-    , m_exitingEventThread(false)
-    , m_startingUp(true)
-    , m_network(0)
-{
-    if (!QWifiInterface().wifiSupported())
-        // give a warning about API misuse
-        qWarning() << "WifiManager may not work as expected on this device. Use the API provided by QtWifi "
-                      "library to verify if device has support for Wi-Fi before creating an instance of WifiManager!";
-#ifdef Q_OS_ANDROID
-    char interface[PROPERTY_VALUE_MAX];
-    property_get(WIFI_INTERFACE, interface, NULL);
-    m_interface = interface;
-#else
-    m_interface = "wlan0"; // use envvar for the interface name?
-    m_dhcpRunner = new ProcessRunner(m_interface);
-    QObject::connect(m_dhcpRunner, &ProcessRunner::processFinished, this, &QWifiManager::handleDhcpFinished);
-#endif
-    qDebug("QWifiManager: using wifi interface: %s", m_interface.constData());
-    m_eventThread = new QWifiManagerEventThread(this, m_interface);
-#ifdef Q_OS_ANDROID
-    m_daemonClientSocket = new QLocalSocket;
-    int qconnFd = socket_local_client("qconnectivity", ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM);
-    if (qconnFd != -1) {
-        m_daemonClientSocket->setSocketDescriptor(qconnFd);
-        QObject::connect(m_daemonClientSocket, SIGNAL(readyRead()), this, SLOT(handleDhcpReply()));
-        QObject::connect(m_daemonClientSocket, SIGNAL(connected()), this, SLOT(connectedToDaemon()));
-    } else {
-        qWarning() << "QWifiManager: failed to connect to qconnectivity socket";
-    }
-    // check if backend has already been initialized
-    char backendStatus[PROPERTY_VALUE_MAX];
-    if (property_get(QT_WIFI_BACKEND, backendStatus, NULL)) {
-        if (strcmp(backendStatus, "running") == 0) {
-            // let it re-connect, in most cases this will see that everything is working properly
-            // and will do nothing. Special case is when process has crashed or was killed by a system
-            // signal in previous execution, which results in broken connection to a supplicant,
-            // connectToBackend will fix it..
-            connectToBackend();
-        } else if (strcmp(backendStatus, "stopped") == 0) {
-            // same here, cleans up the state
-            disconnectFromBackend();
-        }
-    } else {
-#endif
-        m_backendReady = false;
-        emit backendReadyChanged();
-#ifdef Q_OS_ANDROID
-    }
-#endif
-}
-
-QWifiManager::~QWifiManager()
-{
-    exitEventThread();
-    delete m_eventThread;
-#ifdef Q_OS_ANDROID
-    delete m_daemonClientSocket;
-#endif
-}
-
-#ifdef Q_OS_ANDROID
-void QWifiManager::handleDhcpReply()
-{
-    if (m_daemonClientSocket->canReadLine()) {
-        QByteArray receivedMessage;
-        receivedMessage = m_daemonClientSocket->readLine(m_daemonClientSocket->bytesAvailable());
-        if (QT_WIFI_DEBUG) qDebug() << "QWifiManager: reply from qconnectivity: " << receivedMessage;
-        if (receivedMessage == "success") {
-            updateNetworkState(Connected);
-            emit connectedSSIDChanged(m_connectedSSID);
-            // Store settings of a working wifi connection
-            call("SAVE_CONFIG");
-        } else if (receivedMessage == "failed") {
-            updateNetworkState(DhcpRequestFailed);
-        } else {
-            qWarning() << "QWifiManager: unknown message: " << receivedMessage;
-        }
-    }
-}
-
-void QWifiManager::sendDhcpRequest(const QByteArray &request)
-{
-    if (QT_WIFI_DEBUG) qDebug() << "QWifiManager: sending request - " << request;
-    m_request = request;
-    m_request.append("\n");
-    m_daemonClientSocket->abort();
-    // path where android stores "reserved" sockets
-    m_daemonClientSocket->connectToServer(ANDROID_SOCKET_DIR "/qconnectivity");
-}
-
-void QWifiManager::connectedToDaemon()
-{
-    m_daemonClientSocket->write(m_request.constData(), m_request.length());
-    m_daemonClientSocket->flush();
-}
-#endif
-
-void QWifiManager::handleDhcpFinished()
-{
-    // ### TODO - could be that dhcp request fails, how to determine?
-    updateNetworkState(Connected);
-    call("SAVE_CONFIG");
-}
-
-void QWifiManager::start()
-{
-    if (QT_WIFI_DEBUG) qDebug("QWifiManager: connecting to the backend");
-    if (m_backendReady)
-        return;
-    connectToBackend();
-}
-
-void QWifiManager::stop()
-{
-    if (QT_WIFI_DEBUG) qDebug("QWifiManager: shutting down");
-    if (!m_backendReady)
-        return;
-    disconnectFromBackend();
-}
-
-void QWifiManager::connectToBackend()
-{
-    // ### TODO: maybe it makes sense to move this functions in non-gui thread
-#ifdef Q_OS_ANDROID
-    if (!(is_wifi_driver_loaded() || wifi_load_driver() == 0)) {
-        qWarning("QWifiManager: failed to load a driver");
-        return;
-    }
-#else
-    QProcess::execute(QStringLiteral("ifup"), QStringList() << m_interface.constData());
-#endif
-    if (q_wifi_start_supplicant() != 0) {
-        qWarning("QWifiManager: failed to start a supplicant");
-        return;
-    }
-#ifdef Q_OS_ANDROID
-    if (wait_for_property(SUPPLICANT_SVC, "running", 5) < 0) {
-        qWarning("QWifiManager: Timed out waiting for supplicant to start");
-        return;
-    }
-#endif
-    if (q_wifi_connect_to_supplicant(m_interface.constData()) == 0) {
-        m_backendReady = true;
-        emit backendReadyChanged();
-#ifdef Q_OS_ANDROID
-        property_set(QT_WIFI_BACKEND, "running");
-#endif
-    } else {
-        qWarning("QWifiManager: failed to connect to a supplicant");
-        return;
-    }
-    if (QT_WIFI_DEBUG) qDebug("QWifiManager: started successfully");
-    m_exitingEventThread = false;
-    m_eventThread->start();
-    call("SCAN");
-}
-
-void QWifiManager::disconnectFromBackend()
-{
-    exitEventThread();
-    if (q_wifi_stop_supplicant() < 0)
-        qWarning("QWifiManager: failed to stop supplicant");
-    q_wifi_close_supplicant_connection(m_interface.constData());
-    setScanning(false);
-#ifdef Q_OS_ANDROID
-    property_set(QT_WIFI_BACKEND, "stopped");
-#else
-    QProcess::execute(QStringLiteral("ifdown"), QStringList() << m_interface.constData());
-#endif
-    m_backendReady = false;
-    emit backendReadyChanged();
-}
-
-void QWifiManager::exitEventThread()
-{
-    if (m_eventThread->isRunning()) {
-        m_exitingEventThread = true;
-        call("SCAN");
-        m_eventThread->wait();
-    }
-}
-
-void QWifiManager::setScanning(bool scanning)
-{
-    if (!m_backendReady || m_scanning == scanning)
-        return;
-
-    m_scanning = scanning;
-    emit scanningChanged(m_scanning);
-
-    if (m_scanning) {
-        if (QT_WIFI_DEBUG) qDebug("QWifiManager: scanning");
-        call("SCAN");
-        m_scanTimer = startTimer(5000); // ### todo - this could be a qml property
-    } else {
-        if (QT_WIFI_DEBUG) qDebug("QWifiManager: stop scanning");
-        killTimer(m_scanTimer);
-    }
-}
-
-QByteArray QWifiManager::call(const char *command) const
-{
-    char data[2048];
-    size_t len = sizeof(data) - 1;  // -1: room to add a 0-terminator
-    QByteArray cmd;
-#ifdef Q_OS_ANDROID
-#if !(Q_ANDROID_VERSION_MAJOR == 4 && Q_ANDROID_VERSION_MINOR < 4)
-    cmd.append("IFNAME=").append(m_interface).append(" ");
-#endif
-#endif
-    cmd.append(command);
-    if (q_wifi_command(m_interface.constData(), cmd.constData(), data, &len) < 0) {
-        qWarning("QWifiManager: call failed: %s", cmd.constData());
-        return QByteArray();
-    }
-    if (len < sizeof(data))
-        data[len] = 0;
-    QByteArray result = QByteArray::fromRawData(data, len);
-    if (QT_WIFI_DEBUG) qDebug("QWifiManager::call: %s ==>\n%s", cmd.constData(), result.constData());
-    return result;
-}
-
-bool QWifiManager::checkedCall(const char *command) const
-{
-    return call(command).trimmed().toUpper() == "OK";
-}
-
-void QWifiManager::updateNetworkState(NetworkState state)
-{
-    m_state = state;
-    if (m_network)
-        emit networkStateChanged(m_network);
-}
-
-bool QWifiManager::event(QEvent *e)
-{
-    switch ((int) e->type()) {
-    case WIFI_SCAN_RESULTS:
-        m_networkListModel.parseScanResults(call("SCAN_RESULTS"));
-        if (m_startingUp)
-            handleConnected();
-        return true;
-    case WIFI_CONNECTED:
-        handleConnected();
-        break;
-    case WIFI_HANDSHAKE_FAILED:
-        updateNetworkState(HandshakeFailed);
-        break;
-    case QEvent::Timer: {
-        int tid = static_cast<QTimerEvent *>(e)->timerId();
-        if (tid == m_scanTimer) {
-            call("SCAN");
-            return true;
-        }
-        break;
-    }
-    }
-
-    return QObject::event(e);
-}
-
-void QWifiManager::connect(QWifiNetwork *network, const QString &passphrase)
-{
-    m_network = network;
-    if (network->ssid() == m_connectedSSID) {
-        if (QT_WIFI_DEBUG)
-            qDebug("QWifiManager::connect(), already connected to %s", network->ssid().constData());
-        return;
-    }
-    updateNetworkState(Authenticating);
-    call("DISABLE_NETWORK all");
-    if (!m_connectedSSID.isEmpty()) {
-        m_connectedSSID.clear();
-        emit connectedSSIDChanged(m_connectedSSID);
-    }
-
-    bool networkKnown = false;
-    QByteArray id;
-    QByteArray listResult = call("LIST_NETWORKS");
-    QList<QByteArray> lines = listResult.split('\n');
-    foreach (const QByteArray &line, lines) {
-        if (line.contains(network->ssid())) {
-            id = line.split('\t').at(0);
-            networkKnown = true;
-            break;
-        }
-    }
-
-    if (!networkKnown) {
-        bool ok;
-        id = call("ADD_NETWORK").trimmed();
-        id.toInt(&ok);
-        if (!ok) {
-            qWarning("QWifiManager::connect(), failed to add network");
-            return;
-        }
-    }
-    QByteArray setNetworkCommand = QByteArray("SET_NETWORK ") + id;
-
-    bool ok = true;
-    if (!networkKnown)
-        ok = ok && checkedCall(setNetworkCommand + QByteArray(" ssid ") + '"' + network->ssid() + '"');
-
-    QByteArray key_mgmt;
-    if (network->supportsWPA() || network->supportsWPA2()) {
-        ok = ok && checkedCall(setNetworkCommand + QByteArray(" psk ") + '"' + passphrase.toLatin1() + '"');
-        key_mgmt = "WPA-PSK";
-    } else if (network->supportsWEP()) {
-        ok = ok && checkedCall(setNetworkCommand + QByteArray(" wep_key0 ") + '"' + passphrase.toLatin1() + '"');
-        ok = ok && checkedCall(setNetworkCommand + QByteArray(" auth_alg OPEN SHARED"));
-        key_mgmt = "NONE";
-    } else if (!network->supportsWPS() && passphrase.length() == 0) {
-        // open network
-        key_mgmt = "NONE";
-    }
-    ok = ok && checkedCall(setNetworkCommand + QByteArray(" key_mgmt ") + key_mgmt);
-
-    if (!ok) {
-        if (!networkKnown)
-            call("REMOVE_NETWORK " + id);
-        qWarning("QWifiManager::connect(), failed to set properties on network '%s'", id.constData());
-        return;
-    }
-
-    call(QByteArray("SELECT_NETWORK ") + id);
-    call("RECONNECT");
-}
-
-void QWifiManager::disconnect()
-{
-    call("DISCONNECT");
-#ifdef Q_OS_ANDROID
-    QByteArray req = m_interface;
-    sendDhcpRequest(req.append(" disconnect"));
-#endif
-    m_connectedSSID.clear();
-    updateNetworkState(Disconnected);
-    emit connectedSSIDChanged(m_connectedSSID);
-}
-
-void ProcessRunner::run()
-{
-    // kill existing udhcpc instance
-    QString filePath = QString("/var/run/udhcpc.").append(m_ifc).append(".pid");
-    QFile pidFile(filePath);
-    if (pidFile.open(QIODevice::ReadOnly)) {
-        QByteArray pid = pidFile.readAll();
-        pidFile.close();
-        QProcess::execute(QStringLiteral("kill"), QStringList() << pid.trimmed().constData());
-    } else {
-        qWarning() << "QWifiManager - Failed to read" << filePath;
-    }
-    QStringList args;
-    args << QStringLiteral("-R") << QStringLiteral("-n") << QStringLiteral("-p")
-         << filePath << QStringLiteral("-i") << m_ifc;
-    // start DHCP client
-    QProcess::execute(QStringLiteral("udhcpc"), args);
-    emit processFinished();
-}
-
-void QWifiManager::handleConnected()
-{
-    QList<QByteArray> lists = call("LIST_NETWORKS").split('\n');
-    QByteArray connectedNetwork;
-    for (int i = 1; i < lists.size(); ++i) {
-        if (lists.at(i).toUpper().contains("[CURRENT]")) {
-            connectedNetwork = lists.at(i);
-            break;
-        }
-    }
-
-    if (connectedNetwork.isEmpty()) {
-        if (QT_WIFI_DEBUG) qDebug("QWifiManager::handleConnected: not connected to a network...");
-        return;
-    }
-
-    if (QT_WIFI_DEBUG) qDebug("QWifiManager::handleConnected: current is %s", connectedNetwork.constData());
-
-    QList<QByteArray> info = connectedNetwork.split('\t');
-    m_connectedSSID = info.at(1);
-
-    if (m_startingUp) {
-        m_startingUp = false;
-        if (!m_network) {
-            int pos = 0; // unused
-            m_network = m_networkListModel.networkForSSID(info.at(1), &pos);
-        }
-    }
-
-    updateNetworkState(ObtainingIPAddress);
-#ifdef Q_OS_ANDROID
-    QByteArray req = m_interface;
-    sendDhcpRequest(req.append(" connect"));
-#else
-    m_dhcpRunner->start();
-#endif
-}