From cd677b247532305ca67b1459bafe74a19cead7ad Mon Sep 17 00:00:00 2001
From: Gatis Paeglis <gatis.paeglis@theqtcompany.com>
Date: Mon, 2 Feb 2015 10:51:22 +0100
Subject: Add support for hidden SSIDs

Wifi access points may be configured not to
broadcast its SSID, connecting to such networks
requires a SSID-specific probe request. Add new
property to WifiConfiguration for describing this
type of networks.

Change-Id: I068ac53936a860e3752e31b8151b87ba4308c510
Task-number: QTEE-816
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
---
 src/wifi/qwificonfiguration.cpp | 24 ++++++++++++++++++++++++
 src/wifi/qwificonfiguration.h   |  3 +++
 src/wifi/qwifimanager.cpp       |  8 ++++++++
 3 files changed, 35 insertions(+)

(limited to 'src/wifi')

diff --git a/src/wifi/qwificonfiguration.cpp b/src/wifi/qwificonfiguration.cpp
index 42196a2..b532620 100644
--- a/src/wifi/qwificonfiguration.cpp
+++ b/src/wifi/qwificonfiguration.cpp
@@ -31,10 +31,12 @@ public:
     QString m_ssid;
     QString m_psk;
     QString m_protocol;
+    bool m_ssidHidden;
 };
 
 QWifiConfigurationPrivate::QWifiConfigurationPrivate(QWifiConfiguration *config)
     : q_ptr(config)
+    , m_ssidHidden(false)
 {
 }
 
@@ -119,4 +121,26 @@ void QWifiConfiguration::setProtocol(const QString &protocol)
     d->m_protocol = protocol;
 }
 
+/*!
+    \property QWifiConfiguration::ssidHidden
+    \brief Holds whether a Wifi access point broadcasts its SSID
+
+    If a Wifi access point does not broadcast its SSID, setting this
+    property to \c true ensures that the Wifi backend can detect the
+    specified network.
+
+    By default this property is set to \c false.
+*/
+bool QWifiConfiguration::isSsidHidden() const
+{
+    Q_D(const QWifiConfiguration);
+    return d->m_ssidHidden;
+}
+
+void QWifiConfiguration::setSsidHidden(bool hidden)
+{
+    Q_D(QWifiConfiguration);
+    d->m_ssidHidden = hidden;
+}
+
 QT_END_NAMESPACE
diff --git a/src/wifi/qwificonfiguration.h b/src/wifi/qwificonfiguration.h
index 9b03c9e..cdeb453 100644
--- a/src/wifi/qwificonfiguration.h
+++ b/src/wifi/qwificonfiguration.h
@@ -32,6 +32,7 @@ class Q_DECL_EXPORT QWifiConfiguration : public QObject
     Q_PROPERTY(QString ssid READ ssid WRITE setSsid)
     Q_PROPERTY(QString passphrase READ passphrase WRITE setPassphrase)
     Q_PROPERTY(QString protocol READ protocol WRITE setProtocol)
+    Q_PROPERTY(bool ssidHidden READ isSsidHidden WRITE setSsidHidden)
 public:
     explicit QWifiConfiguration(QObject *parent = 0);
     virtual ~QWifiConfiguration();
@@ -42,6 +43,8 @@ public:
     QString passphrase() const;
     void setProtocol(const QString &protocol);
     QString protocol() const;
+    void setSsidHidden(bool hidden);
+    bool isSsidHidden() const;
 
 private:
     Q_DISABLE_COPY(QWifiConfiguration)
diff --git a/src/wifi/qwifimanager.cpp b/src/wifi/qwifimanager.cpp
index 319c9d9..d60ec13 100644
--- a/src/wifi/qwifimanager.cpp
+++ b/src/wifi/qwifimanager.cpp
@@ -506,7 +506,11 @@ bool QWifiManager::connect(QWifiConfiguration *config)
     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.
@@ -520,6 +524,10 @@ bool QWifiManager::connect(QWifiConfiguration *config)
         // 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)
-- 
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