Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 227 insertions, 0 deletions

diff --git a/wifi/kwireless/linuxwirelesswidget.cpp b/wifi/kwireless/linuxwirelesswidget.cpp
new file mode 100644
index 00000000..de35b84b
--- /dev/null
+++ b/wifi/kwireless/linuxwirelesswidget.cpp
@@ -0,0 +1,227 @@
+/*
+  $ Author: Mirko Boehm $
+  $ License: This code is licensed under the LGPL $
+  $ Copyright: (C) 1996-2003, Mirko Boehm $
+  $ Contact: Mirko Boehm <mirko@kde.org>
+         http://www.kde.org
+         http://www.hackerbuero.org $
+*/
+
+#include <qtooltip.h>
+#include <qtimer.h>
+#include <kdebug.h>
+#include <klocale.h>
+#include <unistd.h> // for ::close
+#include "linuxwirelesswidget.h"
+#include "config.h"
+
+extern "C" {
+#include <iwlib.h>
+// #include <linux/wireless.h>
+}
+
+int LinuxWireLessWidget::socketFD;
+QStringList LinuxWireLessWidget::deviceNames;
+
+LinuxWireLessWidget::LinuxWireLessWidget(QWidget *parent, const char* name)
+    : KWireLessWidget(parent, name),
+      m_number  (-1)
+{
+}
+
+LinuxWireLessWidget::~LinuxWireLessWidget()
+{
+    if(instances() == 1)
+    {   // I am the only one
+        if(socketFD != 0)
+        {
+            kdDebug() << "KWireLessWidget dtor: closing FD, over and out."
+                      << endl;
+            ::close(socketFD); // prevent from using QWidget::close
+            socketFD = 0;
+        }
+    }
+}
+
+
+void LinuxWireLessWidget::poll()
+{
+    // BE AWARE: do not call this method, only the first instance is
+    // supposed to do so, and it has been taken care of!
+    // this will repoll the device names every ReEnumCountDownStart
+    // timer ticks:
+    const int ReEnumCountDownStart = 30;
+    static int ReEnumCountDown;
+    struct wireless_info info;
+    struct wireless_config config;
+    struct iwreq wrq;
+    bool updateNeeded = false;
+    bool updateToolTip = false;
+
+    // get a socket file descriptor:
+    if(socketFD == 0)
+        {
+            socketFD = iw_sockets_open();
+        }
+    if(socketFD == 0)
+    {
+        kdDebug() << "KWireLessWidget ctor: opening socket file descriptor failed."
+                  << endl;
+        return;
+    }
+    // ----- query the available devices:
+    mutex.lock(); // querying the device names is protected:
+    if(ReEnumCountDown-- == 0)
+    {
+        ReEnumCountDown = ReEnumCountDownStart;
+        updateToolTip = true;
+
+        // query device information:
+        deviceNames.clear();
+        iw_enum_devices(socketFD, devEnumHandler, 0, 0);
+
+        if (m_number != (int) deviceNames.count())
+        {
+            m_number = deviceNames.count();
+            kdDebug() << "KWireLessWidget::poll: found "
+                      << deviceNames.count() << " wireless "
+                      << ((deviceNames.count() == 1) ? "device" : "devices")
+                      << endl;
+        }
+    }
+
+    // -----  get the device information:
+    QStringList::Iterator it;
+
+    deviceInfo.clear();
+    for(it=deviceNames.begin(); it!=deviceNames.end(); ++it)
+    {
+        // I think it is OK to use this cast, since the QT docs say the
+        // returned pointer is valid until the value of the string is
+        // changed, which will not happen here (horrible cast, anyway
+        // ...):
+        char *device_c_str = (char*)(*it).latin1();
+
+        if(iw_get_basic_config(socketFD, device_c_str, &config) == -1)
+	{
+            kdDebug() << "KWireLessWidget::poll: device "
+                      << *it << " does not seem to be a wireless device"
+                      << endl;
+	} else {
+            // WORK_TO_DO: decide whether updates are needed or not
+            // create a DeviceInfo object and fill it:
+            QString dev, essid, encr;
+            float quality=0, signal=0, noise=0;
+            int bitrate;
+
+            dev = *it;
+            // get the bitrate:
+            if(iw_get_ext(socketFD, device_c_str, SIOCGIWRATE, &wrq) >=0)
+	    {
+                info.has_bitrate = 1;
+                memcpy(&(info.bitrate), &(wrq.u.bitrate), sizeof(iwparam));
+	    }
+            bitrate = info.bitrate.value;
+            // get the ranges (needed to translate the absolute values
+            // reported by the driver):
+            if(iw_get_range_info(socketFD, device_c_str, &(info.range)) >= 0)
+            {
+                info.has_range = 1;
+            }
+
+            // get the device statistics:
+#ifdef HAVE_IW_27 
+	    if(iw_get_stats(socketFD, device_c_str, &(info.stats), &(info.range), info.has_range)>= 0)
+#else
+	    if(iw_get_stats(socketFD, device_c_str, &(info.stats)) >= 0)
+#endif
+	    {
+                info.has_stats = 1;
+                // get the link quality (logic has been taken from
+                // wireless-tools, iwlib.c):
+
+		int rqn = info.range.max_qual.noise;
+		int rql = info.range.max_qual.level;
+		int rmq = info.range.max_qual.qual;
+
+		// in case the quality levels are zero, do not allow division by zero, and
+		// instead set the max. possible quality range to 255 (max of "unsigned char")
+		if (!rqn) rqn = 255;
+		if (!rql) rql = 255;
+		if (!rmq) rmq = 255;
+
+                bool isAbs; // true if values are relative tp a peak value,
+                            // otherwise values are dBm
+                isAbs = (float)info.stats.qual.level > (int)info.range.max_qual.level;
+                if(isAbs)
+                {
+                    noise  = 1 + ((float)info.stats.qual.noise - 0x100) / rqn;
+                    signal = 1 + ((float)info.stats.qual.level - 0x100) / rql;
+                } else {
+                    noise  = ((float)info.stats.qual.noise) / rqn;
+                    signal = ((float)info.stats.qual.level) / rql;
+                }
+
+                quality = ((float)info.stats.qual.qual) / rmq;
+
+                updateNeeded = true;
+	    }
+	    if(config.has_essid)
+		essid = config.essid;
+	    else
+                essid = i18n("<unknown>");
+
+            if (config.has_key && config.key_size>0) {
+                encr = i18n("enabled");
+            } else {
+		// non-root users don't get information about encryption status
+		encr = (getuid() == 0) ? i18n("disabled") : i18n("no information");
+	    }
+
+            DeviceInfo *device = new DeviceInfo(dev, essid, encr, quality, signal,
+                                                noise, bitrate);
+            deviceInfo.append(device);
+        }
+    }
+    mutex.unlock();
+    if(updateNeeded)
+    {
+        emit(updateDeviceInfo(&deviceInfo));
+        repaint(false);
+    }
+    if(updateToolTip)
+    {
+        DeviceInfo *info;
+        QString text;
+
+        for(info=deviceInfo.first(); info; info=deviceInfo.next())
+        {
+	    if (!text.isEmpty())
+		text.append('\n');
+            text += i18n("%1: Link Quality %2, Bitrate: %3")
+				.arg(info->device())
+				.arg(info->qualityString())
+				.arg(info->bitrateString());
+        }
+        QToolTip::add(this, text);
+
+        updateToolTip = false;
+    }
+
+    timer->start(330, true); // single shot
+}
+
+// static:
+int LinuxWireLessWidget::devEnumHandler(int	skfd, char * ifname, char **, int)
+{
+    struct wireless_config config;
+
+    if(iw_get_basic_config(skfd, ifname, &config) != -1)
+    {
+        deviceNames.append(ifname);
+    }
+    return 0;
+}
+
+
+#include "linuxwirelesswidget.moc"