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Diffstat (limited to 'src/wifi/qwifimanager.cpp')
| -rw-r--r-- | src/wifi/qwifimanager.cpp | 534 |
1 files changed, 0 insertions, 534 deletions
diff --git a/src/wifi/qwifimanager.cpp b/src/wifi/qwifimanager.cpp deleted file mode 100644 index 0448ec7..0000000 --- a/src/wifi/qwifimanager.cpp +++ /dev/null @@ -1,534 +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 "qwificontroller_p.h" -#include "qwifinetworklistmodel_p.h" -#include "qwifinetwork_p.h" -#include "qwifimanager_p.h" -#include "qwifisupplicant_p.h" - -#include "qwifidevice.h" - -#include <QtCore/QFile> -#include <QtCore/QProcess> - -QT_BEGIN_NAMESPACE - -// must be in the same order as in enum {} definiton -const char *nsText[] = { "Disconnected", "Authenticating", "HandshakeFailed", - "ObtainingIPAddress", "DhcpRequestFailed", "Connected" }; -const char *bsText[] = { "Initializing", "Running", "Terminating", "NotRunning" }; - -QWifiManagerPrivate::QWifiManagerPrivate(QWifiManager *manager) - : q_ptr(manager) - , m_networkListModel(new QWifiNetworkListModel(manager)) - , m_scanTimer(0) - , m_scanning(false) - , m_interface(QWifiDevice::wifiInterfaceName()) - , m_backendState(QWifiManager::NotRunning) - , m_networkState(QWifiManager::Disconnected) -{ - qCDebug(B2QT_WIFI) << "using wifi interface: " << m_interface; -} - -QWifiManagerPrivate::~QWifiManagerPrivate() -{ - delete m_wifiController; -} - -void QWifiManagerPrivate::setCurrentSSID(const QString &ssid) -{ - Q_Q(QWifiManager); - qCDebug(B2QT_WIFI) << "current SSID: " << m_currentSSID << " -> " << ssid; - if (m_currentSSID == ssid) - return; - - m_currentSSID = ssid; - emit q->currentSSIDChanged(m_currentSSID); -} - -void QWifiManagerPrivate::handleAuthenticating(QWifiEvent *event) -{ - QString data = event->data().trimmed(); - QString ssid = data.mid(data.indexOf(QLatin1String("SSID")) + 6); - ssid = ssid.left(ssid.lastIndexOf(QLatin1Char('\''))); - - setCurrentSSID(QWifiSupplicant::decodeSsid(ssid)); - updateNetworkState(QWifiManager::Authenticating); -} - -void QWifiManagerPrivate::handleConnected() -{ - qCDebug(B2QT_WIFI) << "connected network: " << m_currentSSID; - updateNetworkState(QWifiManager::ObtainingIPAddress); - m_wifiController->asyncCall(QWifiController::AcquireIPAddress); -} - -void QWifiManagerPrivate::handleDisconneced() -{ - updateNetworkState(QWifiManager::Disconnected); -} - -void QWifiManagerPrivate::updateNetworkState(QWifiManager::NetworkState networkState) -{ - Q_Q(QWifiManager); - qCDebug(B2QT_WIFI, "network state: %s -> %s", nsText[m_networkState], nsText[networkState]); - if (m_networkState == networkState) - return; - - m_networkState = networkState; - emit q->networkStateChanged(m_networkState); -} - -void QWifiManagerPrivate::updateBackendState(QWifiManager::BackendState backendState) -{ - Q_Q(QWifiManager); - qCDebug(B2QT_WIFI, "backend state: %s -> %s", bsText[m_backendState], bsText[backendState]); - if (m_backendState == backendState) - return; - - m_backendState = backendState; - emit q->backendStateChanged(m_backendState); -} - -void QWifiManagerPrivate::updateWifiState() -{ - QProcess ps; - ps.start(QStringLiteral("ps")); - if (!ps.waitForStarted()) { - updateLastError(ps.program() + QLatin1String(": ") + ps.errorString()); - return; - } - - ps.waitForFinished(); - bool supplicantRunning = ps.readAll().contains("wpa_supplicant"); - if (supplicantRunning && m_wifiController->resetSupplicantSocket()) - m_backendState = QWifiManager::Running; -} - -QString QWifiManagerPrivate::call(const QString &command) -{ - if (m_backendState != QWifiManager::Running) - return QString(); - - QByteArray reply; - bool success = m_wifiController->supplicant()->sendCommand(command, &reply); - if (!success) { - qCDebug(B2QT_WIFI) << "call to supplicant failed"; - return QString(); - } - - return QLatin1String(reply.trimmed()); -} - -bool QWifiManagerPrivate::checkedCall(const QString &command) -{ - return call(command).toUpper() == QLatin1String("OK"); -} - -void QWifiManagerPrivate::updateLastError(const QString &error) -{ - Q_Q(QWifiManager); - qCWarning(B2QT_WIFI) << error; - m_lastError = error; - emit q->lastErrorChanged(m_lastError); -} - -/*! - \class QWifiManager - \inmodule B2Qt.Wifi.Cpp - \ingroup wifi-cppclasses - \brief Enables an application to be Wifi-capable. - - QWifiManager is a singleton class that handles Wifi-related tasks. You can - use QWifiManager to control the Wifi backend, scan for Wifi access points, - and connect to a wireless network. - - QWifiManager packs the scan results in a list-based data model, which can - be used with Qt's Model/View classes. Information about a Wifi network can - be accessed using the QWifiManager::Roles data roles. -*/ - -/*! - \enum QWifiManager::NetworkState - - Describes current state of the network connection. - - \value Disconnected Not connected to any network - \value Authenticating Verifying password with the network provider - \value HandshakeFailed Incorrect password provided - \value ObtainingIPAddress Requesting IP address from DHCP server - \value DhcpRequestFailed Could not retrieve IP address - \value Connected Ready to process network requests -*/ - -/*! - \enum QWifiManager::BackendState - - Describes current state of the Wifi backend. - - \value Initializing Wireless supplicant is starting up - \value Running Supplicant is initialized and ready to process commands - \value Terminating Shutting down wireless supplicant - \value NotRunning Wireless supplicant process is not running -*/ - -/*! - \enum QWifiManager::Roles - - Data roles supported by the data model returned from QWifiManager::networks() - - \value SSID informal (human) name of a Wifi network (QString) - \value BSSID basic service set identification of a network, used to uniquely identify BSS (QString) - \value SignalStrength strength of a Wifi signal represented as percentage (0-100) (int) - \value WPASupported holds whether network access point supports WPA security protocol (bool) - \value WPA2Supported holds whether network access point supports WPA2 security protocol (bool) - \value WEPSupported holds whether network access point supports WEP security protocol (bool) - \value WPSSupported holds whether network access point supports WPS security protocol (bool) -*/ - -QWifiManager* QWifiManager::m_instance = 0; - -/*! - Returns a singleton instance of QWifiManager. -*/ -QWifiManager* QWifiManager::instance() -{ - if (!m_instance) - m_instance = new QWifiManager(); - return m_instance; -} - -QWifiManager::QWifiManager() - : d_ptr(new QWifiManagerPrivate(this)) -{ - Q_D(QWifiManager); - - if (!QWifiDevice::wifiSupported()) - qCWarning(B2QT_WIFI) << "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 wifi manager"; - - d->m_wifiController = new QWifiController(this, d_ptr); - QObject::connect(d->m_wifiController, &QWifiController::backendStateChanged, - this, &QWifiManager::handleBackendStateChanged); - QObject::connect(d->m_wifiController, &QWifiController::dhcpRequestFinished, - this, &QWifiManager::handleDhcpRequestFinished); - d->m_wifiController->start(); - - d->updateWifiState(); -} - -/*! - Destroys the QWifiManager singleton instance. - */ -QWifiManager::~QWifiManager() -{ - Q_D(QWifiManager); - d->m_wifiController->asyncCall(QWifiController::ExitEventLoop); - d->m_wifiController->wait(); - delete d_ptr; -} - -/*! - \property QWifiManager::networks - \brief a list-based data model of networks - - Returns a list-based data model of networks that can be sensed by a device. - Model can be used with Qt's Model/View classes such as QListView. Data in - the model is updated every 5 seconds if scanning is enabled. - - \sa isScanning() -*/ -QAbstractListModel *QWifiManager::networks() const -{ - Q_D(const QWifiManager); - return d->m_networkListModel; -} - -/*! - \property QWifiManager::currentSSID - \brief a network name of the last selected network - - The network for which the NetworkState change signals are emitted. - Property can contain an empty string when there is no active network - connection. -*/ -QString QWifiManager::currentSSID() const -{ - Q_D(const QWifiManager); - return d->m_currentSSID; -} - -/*! - \property QWifiManager::networkState - \brief the current network state - - Returns the current network state. -*/ -QWifiManager::NetworkState QWifiManager::networkState() const -{ - Q_D(const QWifiManager); - return d->m_networkState; -} - -/*! - \property QWifiManager::backendState - \brief the current backend state. - - Returns the current backend state. -*/ -QWifiManager::BackendState QWifiManager::backendState() const -{ - Q_D(const QWifiManager); - return d->m_backendState; -} - -/*! - Start the Wifi backend. This function returns immediately, the BackendState - change events are delivered asynchronously. - - \sa stop(), BackendState -*/ -void QWifiManager::start() -{ - Q_D(QWifiManager); - d->m_wifiController->asyncCall(QWifiController::InitializeBackend); -} - -/*! - Stop the Wifi backend. Closes the open network connection if any. - This function returns immediately, and the BackendState change events are - delivered asynchronously. - - \sa start(), BackendState -*/ -void QWifiManager::stop() -{ - Q_D(QWifiManager); - d->m_wifiController->asyncCall(QWifiController::TerminateBackend); -} - -/*! - \property QWifiManager::scanning - \brief whether the backend is scanning for Wifi networks. - - Sets whether to scan the environment for Wifi access points. - - To preserve battery energy, set this property to false when scanning is not required. - When enabled, new readings are taken every 5 seconds. - - \note You must initialize the Wifi backend to scan for networks. - - \sa start() -*/ -bool QWifiManager::isScanning() const -{ - Q_D(const QWifiManager); - return d->m_scanning; -} - -void QWifiManager::setScanning(bool scanning) -{ - Q_D(QWifiManager); - if (d->m_scanning == scanning) - return; - - d->m_scanning = scanning; - emit scanningChanged(d->m_scanning); - if (d->m_scanning) { - d->call(QStringLiteral("SCAN")); - // ### TODO expose this with a property - d->m_scanTimer = startTimer(5000); - } else { - killTimer(d->m_scanTimer); - } -} - -/*! - \property QWifiManager::lastError - \brief a QString containing the last error message set by QWifiManager. - - Returns a QString containing the last error message set by QWifiManager. - This helps in diagnosing the internal process failures. - - \sa connect() -*/ -QString QWifiManager::lastError() const -{ - Q_D(const QWifiManager); - return d->m_lastError; -} - -/*! \reimp */ -bool QWifiManager::event(QEvent *event) -{ - Q_D(QWifiManager); - switch ((int) event->type()) { - case WIFI_SCAN_RESULTS: - d->m_networkListModel->parseScanResults(d->call(QStringLiteral("SCAN_RESULTS"))); - return true; - case WIFI_CONNECTED: - d->handleConnected(); - return true; - case WIFI_DISCONNECTED: - d->handleDisconneced(); - return true; - case WIFI_AUTHENTICATING: - d->handleAuthenticating(static_cast<QWifiEvent *>(event)); - return true; - case WIFI_HANDSHAKE_FAILED: - d->updateNetworkState(QWifiManager::HandshakeFailed); - return true; - case QEvent::Timer: { - int tid = static_cast<QTimerEvent *>(event)->timerId(); - if (tid == d->m_scanTimer) { - d->call(QStringLiteral("SCAN")); - return true; - } - break; - } - } - return QObject::event(event); -} - -/*! - Connect a device to a network using the \a config network configuration. - This method returns \c true if the network with the provided configuration - could be successfully added by the backend or \c false on failure. - Use lastError() to obtain the error message on failure. - - \sa disconnect(), NetworkState, lastError() -*/ -bool QWifiManager::connect(QWifiConfiguration *config) -{ - Q_D(QWifiManager); - if (d->m_backendState != Running) { - qCWarning(B2QT_WIFI) << "start wifi backend before calling connect()"; - return false; - } - - d->call(QStringLiteral("DISABLE_NETWORK all")); - d->setCurrentSSID(config->ssid()); - - bool networkKnown = false; - QString id; - const QStringList configuredNetworks = d->call(QStringLiteral("LIST_NETWORKS")).split('\n'); - for (int i = 1; i < configuredNetworks.length(); ++i) { - const QStringList networkFields = configuredNetworks.at(i).split('\t'); - const QString ssid = QWifiSupplicant::decodeSsid(networkFields.at(1)); - if (ssid == d->m_currentSSID) { - id = networkFields.at(0); - networkKnown = true; - break; - } - } - - if (!networkKnown) { - bool ok; - id = d->call(QStringLiteral("ADD_NETWORK")); - id.toInt(&ok); - if (!ok) { - d->updateLastError(QStringLiteral("failed to add network")); - return false; - } - } - - bool ok = true; - QChar q = QLatin1Char('"'); - QString setNetworkCommand = QLatin1String("SET_NETWORK ") + id; - if (!networkKnown) { - ok = ok && d->checkedCall(setNetworkCommand + QLatin1String(" ssid ") + q + d->m_currentSSID + q); - } - - QString key_mgmt; - QString protocol = config->protocol().toUpper(); - QString psk = config->passphrase(); - - // --------------------- configure network ------------------------------ - // ref: http://w1.fi/cgit/hostap/plain/wpa_supplicant/wpa_supplicant.conf - // ref: https://www.freebsd.org/cgi/man.cgi?wpa_supplicant.conf - // ---------------------------------------------------------------------- - if (protocol.isEmpty() || protocol.contains(QStringLiteral("WPA"))) { - // ### TODO - password length has limits (see IEEE 802.11), we need to check - // for those limits here. Supplicant gives only a meaningless "fail" message. - ok = ok && d->checkedCall(setNetworkCommand + QLatin1String(" psk ") + q + psk + q); - key_mgmt = QLatin1String("WPA-PSK"); - } else if (protocol.contains(QStringLiteral("WEP"))) { - ok = ok && d->checkedCall(setNetworkCommand + QLatin1String(" wep_key0 ") + q + psk + q); - ok = ok && d->checkedCall(setNetworkCommand + QLatin1String(" auth_alg OPEN SHARED")); - key_mgmt = QLatin1String("NONE"); - } else if (protocol.contains(QStringLiteral("WPS")) && psk.length() == 0) { - // open network - key_mgmt = QLatin1String("NONE"); - } - - if (config->isSsidHidden()) - ok = ok && d->checkedCall(setNetworkCommand + QLatin1String(" scan_ssid 1")); - - ok = ok && d->checkedCall(setNetworkCommand + QLatin1String(" key_mgmt ") + key_mgmt); - if (!ok) { - if (!networkKnown) - d->call(QLatin1String("REMOVE_NETWORK ") + id); - d->updateLastError(QLatin1String("failed to set properties on network: ") + id); - return false; - } - - d->call(QLatin1String("SELECT_NETWORK ") + id); - d->call(QStringLiteral("RECONNECT")); - - return true; -} - -/*! - Disconnect from currently connected network connection. - - \sa connect(), networkState() -*/ -void QWifiManager::disconnect() -{ - Q_D(QWifiManager); - d->call(QStringLiteral("DISCONNECT")); - d->m_wifiController->asyncCall(QWifiController::StopDhcp); -} - -void QWifiManager::handleBackendStateChanged(BackendState backendState) -{ - Q_D(QWifiManager); - switch (backendState) { - case NotRunning: - d->updateNetworkState(Disconnected); - break; - default: - break; - } - d->updateBackendState(backendState); -} - -void QWifiManager::handleDhcpRequestFinished(const QString &status) -{ - Q_D(QWifiManager); - qCDebug(B2QT_WIFI) << "handleDhcpRequestFinished: " << status << " for " << d->m_currentSSID; - if (status == QLatin1String("success")) { - d->updateNetworkState(Connected); - d->call(QStringLiteral("SAVE_CONFIG")); - } else { - d->updateNetworkState(DhcpRequestFailed); - } -} - -QT_END_NAMESPACE |