From 4fbca156e2bede574f458f9d96cc650c75219973 Mon Sep 17 00:00:00 2001
From: benmeyer <benmeyer>
Date: Tue, 22 Oct 2002 14:48:26 +0000
Subject: Added wireless extensions abstraction

---
(limited to 'noncore/net/networksetup/wlan/wextensions.cpp')

diff --git a/noncore/net/networksetup/wlan/wextensions.cpp b/noncore/net/networksetup/wlan/wextensions.cpp
new file mode 100644
index 0000000..f45ebf2
--- a/dev/null
+++ b/noncore/net/networksetup/wlan/wextensions.cpp
@@ -0,0 +1,158 @@
+#include "wextensions.h"
+
+#include <qfile.h>
+#include <qtextstream.h>
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+
+#include <math.h>
+
+#define PROCNETWIRELESS "/proc/net/wireless"
+#define IW_LOWER 140
+#define IW_UPPER 200
+
+/**
+ * Constructor.  Sets hasWirelessExtensions
+ */ 
+WExtensions::WExtensions(QString interfaceName){
+  interface = interfaceName;
+  fd = socket( AF_INET, SOCK_DGRAM, 0 );
+
+  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;
+  else
+    hasWirelessExtensions = false;
+}
+
+/**
+ * @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-1] = '\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;;
+}
+
+/**
+ * @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();
+
+}
+
+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 == interface){
+      if ( quality > 92 )
+        #ifdef MDEBUG
+        qDebug( "WIFIAPPLET: D'oh! Quality %d > estimated max!\n", quality );
+        #endif
+      if ( ( signal > IW_UPPER ) || ( signal < IW_LOWER ) )
+        #ifdef MDEBUG
+        qDebug( "WIFIAPPLET: Doh! Strength %d > estimated max!\n", signal );
+        #endif
+      if ( ( noise > IW_UPPER ) || ( noise < IW_LOWER ) )
+        #ifdef MDEBUG
+        qDebug( "WIFIAPPLET: Doh! Noise %d > estimated max!\n", noise );
+        #endif
+      return true;
+    }  
+  }
+
+  qDebug("Card no longer present");
+  quality = -1;
+  signal = IW_LOWER;
+  noise = IW_LOWER;
+  return false;
+}
+
+// wextensions.cpp
--
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