Diffstat (limited to 'noncore/settings/networksettings/wlan/wextensions.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/settings/networksettings/wlan/wextensions.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/noncore/settings/networksettings/wlan/wextensions.cpp b/noncore/settings/networksettings/wlan/wextensions.cpp new file mode 100644 index 0000000..f45ebf2 --- a/dev/null +++ b/noncore/settings/networksettings/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 |