- more work on scanning

- start OStation class representing a network node

1 files changed, 44 insertions, 1 deletions

diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index 918ba07..a85a510 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -1,164 +1,165 @@
 /*
                              This file is part of the Opie Project
                              Copyright (C) 2003 by the Wellenreiter team:
                              Martin J. Muench <mjm@remote-exploit.org>
                              Max Moser <mmo@remote-exploit.org
                              Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
               =.
             .=l.
            .>+-=
  _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=          redistribute it and/or  modify it under
 :`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This program is distributed in the hope that
      +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
     : ..    .:,     . . .    without even the implied warranty of
     =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
   _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
 ..}^=.=       =       ;      Library General Public License for more
 ++=   -.     .`     .:       details.
  :     =  ...= . :.=-
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 /* OPIE */
 
 #include <opie2/onetwork.h>
+#include <opie2/ostation.h>
 
 /* QT */
 
 #include <qfile.h>
 #include <qtextstream.h>
 
 /* UNIX */
 
 #include <assert.h>
 #include <arpa/inet.h>
 #include <cerrno>
 #include <cstring>
 #include <cstdlib>
 #include <math.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <linux/sockios.h>
 #include <net/if_arp.h>
 #include <stdarg.h>
 
 using namespace std;
 
 #ifndef NODEBUG
 #include <opie2/oioctlmap.h>
 IntStringMap* _ioctlmap = constructIoctlMap();
 #endif
 
 /*======================================================================================
  * ONetwork
  *======================================================================================*/
 
 ONetwork* ONetwork::_instance = 0;
 
 ONetwork::ONetwork()
 {
     qDebug( "ONetwork::ONetwork()" );
     qDebug( "ONetwork: This code has been compiled against Wireless Extensions V%d", WIRELESS_EXT );
     synchronize();
 }
 
 void ONetwork::synchronize()
 {
     // gather available interfaces by inspecting /proc/net/dev
     //FIXME: we could use SIOCGIFCONF here, but we aren't interested in virtual (e.g. eth0:0) devices
     //FIXME: Use SIOCGIFCONF anway, because we can disable listing of aliased devices
     //FIXME: Best is use SIOCGIFCONF and if this doesn't work (result=-1), then fallback to parsing /proc/net/dev
 
     _interfaces.clear();
     QString str;
     QFile f( "/proc/net/dev" );
     bool hasFile = f.open( IO_ReadOnly );
     if ( !hasFile )
     {
         qDebug( "ONetwork: /proc/net/dev not existing. No network devices available" );
         return;
     }
     QTextStream s( &f );
     s.readLine();
     s.readLine();
     while ( !s.atEnd() )
     {
         s >> str;
         str.truncate( str.find( ':' ) );
         qDebug( "ONetwork: found interface '%s'", (const char*) str );
         ONetworkInterface* iface;
         if ( isWirelessInterface( str ) )
         {
             iface = new OWirelessNetworkInterface( this, (const char*) str );
             qDebug( "ONetwork: interface '%s' has Wireless Extensions", (const char*) str );
         }
         else
         {
             iface = new ONetworkInterface( this, (const char*) str );
         }
         _interfaces.insert( str, iface );
         s.readLine();
     }
 }
 
 
 short ONetwork::wirelessExtensionVersion()
 {
     return WIRELESS_EXT;
 }
 
 
 int ONetwork::count() const
 {
     return _interfaces.count();
 }
 
 
 ONetworkInterface* ONetwork::interface( const QString& iface ) const
 {
     return _interfaces[iface];
 }
 
 
 ONetwork* ONetwork::instance()
 {
     if ( !_instance ) _instance = new ONetwork();
     return _instance;
 }
 
 
 ONetwork::InterfaceIterator ONetwork::iterator() const
 {
     return ONetwork::InterfaceIterator( _interfaces );
 }
 
 
 bool ONetwork::isWirelessInterface( const char* name ) const
 {
     int sfd = socket( AF_INET, SOCK_STREAM, 0 );
     struct iwreq iwr;
     memset( &iwr, 0, sizeof( struct iwreq ) );
     strcpy( (char*) &iwr.ifr_name, name );
     int result = ::ioctl( sfd, SIOCGIWNAME, &iwr );
     return result != -1;
 }
 
 /*======================================================================================
  * ONetworkInterface
  *======================================================================================*/
 
 ONetworkInterface::ONetworkInterface( QObject* parent, const char* name )
@@ -756,261 +757,303 @@ QString OWirelessNetworkInterface::nickName() const
     _iwr.u.data.length = IW_ESSID_MAX_SIZE;
     if ( !wioctl( SIOCGIWNICKN ) )
     {
         return "<unknown>";
     }
     else
     {
         str[_iwr.u.data.length] = 0x0; // some drivers (e.g. wlan-ng) don't zero-terminate the string
         return str;
     }
 }
 
 
 void OWirelessNetworkInterface::setPrivate( const QString& call, int numargs, ... )
 {
     OPrivateIOCTL* priv = static_cast<OPrivateIOCTL*>( child( (const char*) call ) );
     if ( !priv )
     {
         qDebug( "OWirelessNetworkInterface::setPrivate(): interface '%s' does not support private ioctl '%s'", name(), (const char*) call );
         return;
     }
     if ( priv->numberSetArgs() != numargs )
     {
         qDebug( "OWirelessNetworkInterface::setPrivate(): parameter count not matching. '%s' expects %d arguments, but got %d", (const char*) call, priv->numberSetArgs(), numargs );
         return;
     }
 
     qDebug( "OWirelessNetworkInterface::setPrivate(): about to call '%s' on interface '%s'", (const char*) call, name() );
     memset( &_iwr, 0, sizeof _iwr );
     va_list argp;
     va_start( argp, numargs );
     for ( int i = 0; i < numargs; ++i )
     {
         priv->setParameter( i, va_arg( argp, int ) );
     }
     va_end( argp );
     priv->invoke();
 }
 
 
 void OWirelessNetworkInterface::getPrivate( const QString& call )
 {
     qWarning( "OWirelessNetworkInterface::getPrivate() is not implemented yet." );
 }
 
 
 bool OWirelessNetworkInterface::hasPrivate( const QString& call )
 {
     return child( (const char*) call );
 }
 
 
 QString OWirelessNetworkInterface::SSID() const
 {
     char str[IW_ESSID_MAX_SIZE];
     _iwr.u.essid.pointer = &str[0];
     _iwr.u.essid.length = IW_ESSID_MAX_SIZE;
     if ( !wioctl( SIOCGIWESSID ) )
     {
         return "<unknown>";
     }
     else
     {
         return str;
     }
 }
 
 
 void OWirelessNetworkInterface::setSSID( const QString& ssid )
 {
     _iwr.u.essid.pointer = const_cast<char*>( (const char*) ssid );
     _iwr.u.essid.length = ssid.length();
     wioctl( SIOCSIWESSID );
 }
 
 
 int OWirelessNetworkInterface::scanNetwork()
 {
     _iwr.u.param.flags = IW_SCAN_DEFAULT;
     _iwr.u.param.value = 0;
     if ( !wioctl( SIOCSIWSCAN ) )
     {
         return -1;
     }
 
     int timeout = 1000000;
 
     qDebug( "ONetworkInterface::scanNetwork() - scan started." );
 
     bool results = false;
     struct timeval tv;
     tv.tv_sec = 0;
     tv.tv_usec = 250000; // initial timeout ~ 250ms
     char buffer[IW_SCAN_MAX_DATA];
 
     while ( !results && timeout > 0 )
     {
         timeout -= tv.tv_usec;
         select( 0, 0, 0, 0, &tv );
 
         _iwr.u.data.pointer = &buffer[0];
         _iwr.u.data.flags = 0;
         _iwr.u.data.length = sizeof buffer;
         if ( wioctl( SIOCGIWSCAN ) )
         {
             results = true;
             continue;
         }
         else if ( errno == EAGAIN)
         {
             qDebug( "ONetworkInterface::scanNetwork() - scan in progress..." );
             #if 0
             if ( qApp )
             {
                 qApp->processEvents( 100 );
                 continue;
             }
             #endif
             tv.tv_sec = 0;
             tv.tv_usec = 100000;
             continue;
         }
     }
 
     qDebug( "ONetworkInterface::scanNetwork() - scan finished." );
 
     if ( results )
     {
+        qDebug( " - result length = %d", _iwr.u.data.length );
+        if ( !_iwr.u.data.length )
+        {
+            qDebug( " - no results (empty neighbourhood)" );
+            return 0;
+        }
+
         qDebug( " - results are in!" );
+        dumpBytes( (const unsigned char*) &buffer[0], _iwr.u.data.length );
+
+        int stations = 0;
+
+        // parse results
+
+        int offset = 0;
+        struct iw_event* we = (struct iw_event*) &buffer[0];
+
+        while ( offset < _iwr.u.data.length )
+        {
+            //const char* cmd = *(*_ioctlmap)[we->cmd];
+            //if ( !cmd ) cmd = "<unknown>";
+            qDebug( "reading next event... cmd=%d, len=%d", we->cmd, we->len );
+            switch (we->cmd)
+            {
+                case SIOCGIWAP: qDebug( "SIOCGIWAP" ); stations++; break;
+                case SIOCGIWMODE: qDebug( "SIOCGIWMODE" ); break;
+                case SIOCGIWFREQ: qDebug( "SIOCGIWFREQ" ); break;
+                case SIOCGIWESSID: qDebug( "SIOCGIWESSID" ); break;
+                case SIOCGIWSENS: qDebug( "SIOCGIWSENS" ); break;
+                case SIOCGIWENCODE: qDebug( "SIOCGIWENCODE" ); break;
+                case IWEVTXDROP: qDebug( "IWEVTXDROP" ); break;         /* Packet dropped to excessive retry */
+                case IWEVQUAL: qDebug( "IWEVQUAL" ); break;             /* Quality part of statistics (scan) */
+                case IWEVCUSTOM: qDebug( "IWEVCUSTOM" ); break;         /* Driver specific ascii string */
+                case IWEVREGISTERED: qDebug( "IWEVREGISTERED" ); break; /* Discovered a new node (AP mode) */
+                case IWEVEXPIRED: qDebug( "IWEVEXPIRED" ); break;       /* Expired a node (AP mode) */
+                default: qDebug( "unhandled event" );
+            }
+
+            offset += we->len;
+            we = (struct iw_event*) &buffer[offset];
+        }
+
     }
     else
     {
-        qDebug( " - no results :(" );
+        qDebug( " - no results (timeout) :(" );
+        return 0;
     }
 }
 
 
 bool OWirelessNetworkInterface::wioctl( int call, struct iwreq& iwreq ) const
 {
     #ifndef NODEBUG
     int result = ::ioctl( _sfd, call, &iwreq );
     if ( result == -1 )
         qDebug( "ONetworkInterface::wioctl (%s) call %s (0x%04X) - Status: Failed: %d (%s)", name(), (const char*) *(*_ioctlmap)[call], call, result, strerror( errno ) );
     else
         qDebug( "ONetworkInterface::wioctl (%s) call %s (0x%04X) - Status: Ok.", name(), (const char*) *(*_ioctlmap)[call], call );
     return ( result != -1 );
     #else
     return ::ioctl( _sfd, call, &iwreq ) != -1;
     #endif
 }
 
 
 bool OWirelessNetworkInterface::wioctl( int call ) const
 {
     strcpy( _iwr.ifr_name, name() );
     return wioctl( call, _iwr );
 }
 
 
 /*======================================================================================
  * OMonitoringInterface
  *======================================================================================*/
 
 OMonitoringInterface::OMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
                       :_if( static_cast<OWirelessNetworkInterface*>( iface ) ), _prismHeader( prismHeader )
 {
 }
 
 
 OMonitoringInterface::~OMonitoringInterface()
 {
 }
 
 
 void OMonitoringInterface::setChannel( int c )
 {
     // use standard WE channel switching protocol
     memset( &_if->_iwr, 0, sizeof( struct iwreq ) );
     _if->_iwr.u.freq.m = c;
     _if->_iwr.u.freq.e = 0;
     _if->wioctl( SIOCSIWFREQ );
 }
 
 
 bool OMonitoringInterface::enabled() const
 {
     return _if->monitorMode();
 }
 
 
 void OMonitoringInterface::setEnabled( bool b )
 {
 }
 
 
 /*======================================================================================
  * OCiscoMonitoringInterface
  *======================================================================================*/
 
 OCiscoMonitoringInterface::OCiscoMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
                            :OMonitoringInterface( iface, prismHeader )
 {
     iface->setMonitoring( this );
 }
 
 
 OCiscoMonitoringInterface::~OCiscoMonitoringInterface()
 {
 }
 
 
 void OCiscoMonitoringInterface::setEnabled( bool b )
 {
     QString fname;
     fname.sprintf( "/proc/driver/aironet/%s", (const char*) _if->name() );
     QFile f( fname );
     if ( !f.exists() ) return;
 
     if ( f.open( IO_WriteOnly ) )
     {
         QTextStream s( &f );
         s << "Mode: r";
         s << "Mode: y";
         s << "XmitPower: 1";
     }
 
     // flushing and closing will be done automatically when f goes out of scope
 }
 
 
 QString OCiscoMonitoringInterface::name() const
 {
     return "cisco";
 }
 
 
 void OCiscoMonitoringInterface::setChannel( int )
 {
     // cisco devices automatically switch channels when in monitor mode
 }
 
 
 /*======================================================================================
  * OWlanNGMonitoringInterface
  *======================================================================================*/
 
 
 OWlanNGMonitoringInterface::OWlanNGMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
                            :OMonitoringInterface( iface, prismHeader )
 {
     iface->setMonitoring( this );
 }
 
 
 OWlanNGMonitoringInterface::~OWlanNGMonitoringInterface()
 {
 }
 
 
 void OWlanNGMonitoringInterface::setEnabled( bool b )
 {