WLAN settings

2 files changed, 237 insertions, 0 deletions

diff --git a/noncore/settings/networksettings2/networksettings2/wextensions.cpp b/noncore/settings/networksettings2/networksettings2/wextensions.cpp
new file mode 100644
index 0000000..778990c
--- a/dev/null
+++ b/noncore/settings/networksettings2/networksettings2/wextensions.cpp
@@ -0,0 +1,203 @@
+#include "wextensions.h"
+
+#include <qfile.h>
+#include <qtextstream.h>
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+
+#include <opie2/odebug.h>
+using namespace Opie::Core;
+
+#include <math.h>
+
+#define PROCNETWIRELESS "/proc/net/wireless"
+#define IW_LOWER 0
+#define IW_UPPER 256
+
+/**
+ * Constructor.  Sets hasWirelessExtensions
+ */ 
+WExtensions::WExtensions(QString interfaceName): hasWirelessExtensions(false), interface(interfaceName) {
+  fd = socket( AF_INET, SOCK_DGRAM, 0 );
+  if(fd == -1) 
+    return;
+
+  const char* buffer[200];
+  memset( &iwr, 0, sizeof( iwr ) );
+  iwr.u.essid.pointer = (caddr_t) buffer;
+  iwr.u.essid.length = IW_ESSID_MAX_SIZE;
+  iwr.u.essid.flags = 0;
+  
+  // check if it is an IEEE 802.11 standard conform
+  // wireless device by sending SIOCGIWESSID
+  // which also gives back the Extended Service Set ID
+  // (see IEEE 802.11 for more information)
+
+  const char* iname = interface.latin1();
+  strcpy( iwr.ifr_ifrn.ifrn_name,  (const char *)iname );
+  if ( 0 == ioctl( fd, SIOCGIWESSID, &iwr ) )
+    hasWirelessExtensions = true;
+}
+
+/**
+ * @return QString the station name of the access point.
+ */ 
+QString WExtensions::station(){
+  if(!hasWirelessExtensions)
+    return QString();
+  const char* buffer[200];
+  iwr.u.data.pointer = (caddr_t) buffer;
+  iwr.u.data.length = IW_ESSID_MAX_SIZE;
+  iwr.u.data.flags = 0;
+  if ( 0 == ioctl( fd, SIOCGIWNICKN, &iwr )){
+    iwr.u.data.pointer[(unsigned int) iwr.u.data.length-1] = '\0';
+    return QString(iwr.u.data.pointer);
+  }
+  return QString();
+}
+
+/**
+ * @return QString the essid of the host 802.11 access point.
+ */ 
+QString WExtensions::essid(){
+  if(!hasWirelessExtensions)
+    return QString();
+  if ( 0 == ioctl( fd, SIOCGIWESSID, &iwr )){
+    iwr.u.essid.pointer[(unsigned int) iwr.u.essid.length] = '\0';
+    return QString(iwr.u.essid.pointer);
+  }
+  return QString();
+}
+
+/**
+ * @return QString the mode of interface
+ */ 
+QString WExtensions::mode(){
+  if(!hasWirelessExtensions)
+    return QString();
+  if ( 0 == ioctl( fd, SIOCGIWMODE, &iwr ) )
+    return QString("%1").arg(iwr.u.mode == IW_MODE_ADHOC ? "Ad-Hoc" : "Managed");
+  return QString();
+}
+
+/**
+ * Get the frequency that the interface is running at.
+ * @return int the frequency that the interfacae is running at.
+ */ 
+double WExtensions::frequency(){
+  if(!hasWirelessExtensions)
+    return 0;
+  if ( 0 == ioctl( fd, SIOCGIWFREQ, &iwr ))
+    return (double( iwr.u.freq.m ) * pow( 10, iwr.u.freq.e ) / 1000000000);
+  return 0;
+}
+
+/**
+ * Get the channel that the interface is running at.
+ * @return int the channel that the interfacae is running at.
+ */ 
+int WExtensions::channel(){
+  if(!hasWirelessExtensions)
+    return 0;
+  if ( 0 != ioctl( fd, SIOCGIWFREQ, &iwr ))
+    return 0;
+  
+  // http://www.elanix.com/pdf/an137e.pdf
+
+  double num = (double( iwr.u.freq.m ) * pow( 10, iwr.u.freq.e ) / 1000000000);
+  double left = 2.401;
+  double right = 2.416;
+  for(int channel = 1;  channel<= 15; channel++){
+    if( num >= left && num <= right )
+      return channel;
+    left += 0.005;
+    right += 0.005;
+  }
+  odebug << QString("Unknown frequency: %1, returning -1 for the channel.").arg(num).latin1() << oendl; 
+  return -1;
+}
+
+/***
+ * Get the current rate that the card is transmiting at.
+ * @return double the rate, 0 if error.
+ */ 
+double WExtensions::rate(){
+  if(!hasWirelessExtensions)
+    return 0;
+  if(0 == ioctl(fd, SIOCGIWRATE, &iwr)){
+    return ((double)iwr.u.bitrate.value)/1000000;
+  }
+  return 0;
+}
+
+
+/**
+ * @return QString the AccessPoint that the interface is connected to.
+ */ 
+QString WExtensions::ap(){
+  if(!hasWirelessExtensions)
+    return QString();
+  if ( 0 == ioctl( fd, SIOCGIWAP, &iwr )){
+    QString ap;
+    ap = ap.sprintf( "%.2X:%.2X:%.2X:%.2X:%.2X:%.2X",
+      iwr.u.ap_addr.sa_data[0]&0xff,
+      iwr.u.ap_addr.sa_data[1]&0xff,
+      iwr.u.ap_addr.sa_data[2]&0xff,
+      iwr.u.ap_addr.sa_data[3]&0xff,
+      iwr.u.ap_addr.sa_data[4]&0xff,
+      iwr.u.ap_addr.sa_data[5]&0xff );
+    return ap;
+  }
+  else return QString();
+}
+
+/**
+ * Get the stats for interfaces
+ * @param signal the signal strength of interface
+ * @param noise the noise level of the interface
+ * @param quality the quality level of the interface
+ * @return bool true if successful
+ */ 
+bool WExtensions::stats(int &signal, int &noise, int &quality){
+  // gather link quality from /proc/net/wireless
+  if(!QFile::exists(PROCNETWIRELESS))
+    return false;
+
+  char c;
+  QString status;
+  QString name;
+  
+  QFile wfile( PROCNETWIRELESS );
+  if(!wfile.open( IO_ReadOnly ))
+    return false;
+  
+  QTextStream wstream( &wfile );
+  wstream.readLine();  // skip the first two lines
+  wstream.readLine();  // because they only contain headers
+  while(!wstream.atEnd()){
+    wstream >> name >> status >> quality >> c >> signal >> c >> noise;
+    if(name == QString("%1:").arg(interface)){
+      if ( quality > 92 )
+        odebug << "WIFIAPPLET: D'oh! Quality " << quality << " > estimated max!\n" << oendl; 
+      if ( ( signal > IW_UPPER ) || ( signal < IW_LOWER ) )
+        odebug << "WIFIAPPLET: Doh! Strength " << signal << " > estimated max!\n" << oendl; 
+      if ( ( noise > IW_UPPER ) || ( noise < IW_LOWER ) )
+        odebug << "WIFIAPPLET: Doh! Noise " << noise << " > estimated max!\n" << oendl; 
+      //odebug << QString("q:%1, s:%2, n:%3").arg(quality).arg(signal).arg(noise).latin1() << oendl; 
+      signal = ( ( signal-IW_LOWER ) * 100 ) / IW_UPPER;
+      noise = ( ( noise-IW_LOWER ) * 100 ) / IW_UPPER;
+      quality = ( quality*100 ) / 92;
+      return true;
+    }  
+  }
+
+  odebug << "WExtensions::statsCard no longer present." << oendl; 
+  quality = -1;
+  signal = IW_LOWER;
+  noise = IW_LOWER;
+  return false;
+}
+
+// wextensions.cpp
diff --git a/noncore/settings/networksettings2/networksettings2/wextensions.h b/noncore/settings/networksettings2/networksettings2/wextensions.h
new file mode 100644
index 0000000..a89e33a
--- a/dev/null
+++ b/noncore/settings/networksettings2/networksettings2/wextensions.h
@@ -0,0 +1,34 @@
+#ifndef WEXTENSIONS_H
+#define WEXTENSIONS_H
+
+#include <qstring.h>
+
+#include <netinet/ip.h>
+#include <linux/wireless.h>
+
+class WExtensions {
+
+public:
+  WExtensions(QString interfaceName);
+  QString getInterfaceName(){return interface;};
+  bool doesHaveWirelessExtensions(){return hasWirelessExtensions;};
+  QString station();
+  QString essid();
+  QString mode();
+  double frequency();
+  int channel();
+  double rate();
+  QString ap();
+  bool stats( int &signal, int &noise, int &quality);
+
+private:
+  bool hasWirelessExtensions;
+  QString interface;
+  
+  // Used in we calls
+  struct iwreq iwr;
+  int fd;
+
+};
+
+#endif