diff options
Diffstat (limited to 'src/imports/wifi/qwifimanager.cpp')
-rw-r--r-- | src/imports/wifi/qwifimanager.cpp | 339 |
1 files changed, 293 insertions, 46 deletions
diff --git a/src/imports/wifi/qwifimanager.cpp b/src/imports/wifi/qwifimanager.cpp index 160b9a7..7615f70 100644 --- a/src/imports/wifi/qwifimanager.cpp +++ b/src/imports/wifi/qwifimanager.cpp @@ -32,6 +32,7 @@ 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); /* * Work around API differences between Android versions @@ -151,28 +152,30 @@ public: } void run() { - if (QT_WIFI_DEBUG) qDebug("EventReceiver thread is running"); + 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; - - if (QT_WIFI_DEBUG) qDebug("EVENT: %s", buffer); - - char *event = &buffer[11]; - if (strstr(event, "SCAN-RESULTS")) { - if (m_manager->exitingEventThread()) + event = 0; + if (strstr(buffer, "SCAN-RESULTS")) { + if (m_manager->exitingEventThread()) { + if (QT_WIFI_DEBUG) qDebug() << "Exiting WiFi event thread"; return; - QWifiManagerEvent *e = new QWifiManagerEvent(WIFI_SCAN_RESULTS); - QCoreApplication::postEvent(m_manager, e); - } else if (strstr(event, "CONNECTED")) { - QWifiManagerEvent *e = new QWifiManagerEvent(WIFI_CONNECTED); - QCoreApplication::postEvent(m_manager, e); - } else if (strstr(event, "TERMINATING")) { + } + 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); } } } @@ -181,13 +184,236 @@ public: 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_networks(this) + : m_networkListModel(this) , m_eventThread(0) , m_scanTimer(0) , m_scanning(false) , m_daemonClientSocket(0) , m_exitingEventThread(false) + , m_startingUp(true) + , m_network(0) { char interface[PROPERTY_VALUE_MAX]; property_get(WIFI_INTERFACE, interface, NULL); @@ -205,15 +431,15 @@ QWifiManager::QWifiManager() qWarning() << "QWifiManager: failed to connect to qconnectivity socket"; } // check if backend has already been initialized - char backend_status[PROPERTY_VALUE_MAX]; - if (property_get(QT_WIFI_BACKEND, backend_status, NULL)) { - if (strcmp(backend_status, "running") == 0) { + 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(backend_status, "stopped") == 0) { + } else if (strcmp(backendStatus, "stopped") == 0) { // same here, cleans up the state disconnectFromBackend(); } @@ -222,12 +448,7 @@ QWifiManager::QWifiManager() QWifiManager::~QWifiManager() { - // exit event thread if it is running - if (m_eventThread->isRunning()) { - m_exitingEventThread = true; - call("SCAN"); - m_eventThread->wait(); - } + exitEventThread(); delete m_eventThread; delete m_daemonClientSocket; } @@ -239,14 +460,12 @@ void QWifiManager::handleDhcpReply() receivedMessage = m_daemonClientSocket->readLine(m_daemonClientSocket->bytesAvailable()); if (QT_WIFI_DEBUG) qDebug() << "QWifiManager: reply from qconnectivity: " << receivedMessage; if (receivedMessage == "success") { - m_state = Connected; - emit networkStateChanged(); + updateNetworkState(Connected); emit connectedSSIDChanged(m_connectedSSID); // Store settings of a working wifi connection call("SAVE_CONFIG"); } else if (receivedMessage == "failed") { - m_state = DhcpRequestFailed; - emit networkStateChanged(); + updateNetworkState(DhcpRequestFailed); } else { qWarning() << "QWifiManager: unknown message: " << receivedMessage; } @@ -272,12 +491,16 @@ void QWifiManager::connectedToDaemon() 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(); } @@ -306,15 +529,12 @@ void QWifiManager::connectToBackend() if (QT_WIFI_DEBUG) qDebug("QWifiManager: started successfully"); m_exitingEventThread = false; m_eventThread->start(); - handleConnected(); + call("SCAN"); } void QWifiManager::disconnectFromBackend() { - m_exitingEventThread = true; - call("SCAN"); - m_eventThread->wait(); - + exitEventThread(); if (q_wifi_stop_supplicant() < 0) qWarning("QWifiManager: failed to stop supplicant"); q_wifi_close_supplicant_connection(m_interface.constData()); @@ -323,9 +543,18 @@ void QWifiManager::disconnectFromBackend() emit backendReadyChanged(); } +void QWifiManager::exitEventThread() +{ + if (m_eventThread->isRunning()) { + m_exitingEventThread = true; + call("SCAN"); + m_eventThread->wait(); + } +} + void QWifiManager::setScanning(bool scanning) { - if (m_scanning == scanning) + if (!m_backendReady || m_scanning == scanning) return; m_scanning = scanning; @@ -361,15 +590,27 @@ 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_networks.parseScanResults(call("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) { @@ -385,10 +626,13 @@ bool QWifiManager::event(QEvent *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()); + 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()) { @@ -396,16 +640,13 @@ void QWifiManager::connect(QWifiNetwork *network, const QString &passphrase) emit connectedSSIDChanged(m_connectedSSID); } - m_state = ObtainingIPAddress; - emit networkStateChanged(); 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())) { - int networkId = line.toInt(); - id = QByteArray::number(networkId); + id = line.split('\t').at(0); networkKnown = true; break; } @@ -413,7 +654,7 @@ void QWifiManager::connect(QWifiNetwork *network, const QString &passphrase) if (!networkKnown) { bool ok; - QByteArray id = call("ADD_NETWORK").trimmed(); + id = call("ADD_NETWORK").trimmed(); id.toInt(&ok); if (!ok) { qWarning("QWifiManager::connect(), failed to add network"); @@ -456,9 +697,8 @@ void QWifiManager::disconnect() call("DISCONNECT"); QByteArray req = m_interface; sendDhcpRequest(req.append(" disconnect")); - m_state = Disconnected; m_connectedSSID.clear(); - emit networkStateChanged(); + updateNetworkState(Disconnected); emit connectedSSIDChanged(m_connectedSSID); } @@ -466,7 +706,7 @@ void QWifiManager::handleConnected() { QList<QByteArray> lists = call("LIST_NETWORKS").split('\n'); QByteArray connectedNetwork; - for (int i=1; i<lists.size(); ++i) { + for (int i = 1; i < lists.size(); ++i) { if (lists.at(i).toUpper().contains("[CURRENT]")) { connectedNetwork = lists.at(i); break; @@ -475,8 +715,6 @@ void QWifiManager::handleConnected() if (connectedNetwork.isEmpty()) { if (QT_WIFI_DEBUG) qDebug("QWifiManager::handleConnected: not connected to a network..."); - m_state = Disconnected; - emit networkStateChanged(); return; } @@ -485,6 +723,15 @@ void QWifiManager::handleConnected() 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); QByteArray req = m_interface; sendDhcpRequest(req.append(" connect")); } |