| -rw-r--r-- | noncore/settings/networksettings2/networksettings2/wextensions.cpp | 203 | ||||
| -rw-r--r-- | noncore/settings/networksettings2/networksettings2/wextensions.h | 34 |
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 |