| -rw-r--r-- | noncore/settings/networksettings/wlan/wextensions.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/noncore/settings/networksettings/wlan/wextensions.cpp b/noncore/settings/networksettings/wlan/wextensions.cpp index 827d075..bd7cf93 100644 --- a/noncore/settings/networksettings/wlan/wextensions.cpp +++ b/noncore/settings/networksettings/wlan/wextensions.cpp @@ -1,200 +1,200 @@ #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 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-1] = '\0'; + 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; } qDebug(QString("Unknown frequency: %1, returning -1 for the channel.").arg(num).latin1()); 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 successfull */ 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 ) qDebug( "WIFIAPPLET: D'oh! Quality %d > estimated max!\n", quality ); if ( ( signal > IW_UPPER ) || ( signal < IW_LOWER ) ) qDebug( "WIFIAPPLET: Doh! Strength %d > estimated max!\n", signal ); if ( ( noise > IW_UPPER ) || ( noise < IW_LOWER ) ) qDebug( "WIFIAPPLET: Doh! Noise %d > estimated max!\n", noise ); //qDebug(QString("q:%1, s:%2, n:%3").arg(quality).arg(signal).arg(noise).latin1()); signal = ( ( signal-IW_LOWER ) * 100 ) / IW_UPPER; noise = ( ( noise-IW_LOWER ) * 100 ) / IW_UPPER; quality = ( quality*100 ) / 92; return true; } } qDebug("WExtensions::statsCard no longer present."); quality = -1; signal = IW_LOWER; noise = IW_LOWER; return false; } // wextensions.cpp |