add monitor mode handling for recent kernels (WE>14)

2 files changed, 29 insertions, 7 deletions

diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index 6cef5cf..751d841 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -22,138 +22,145 @@
 ..}^=.=       =       ;      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>
 
 /* 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;
 
 /*======================================================================================
  * 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
 
     _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 )
                  :QObject( parent, name ),
                  _sfd( socket( AF_INET, SOCK_DGRAM, 0 ) ), _mon( 0 )
 {
     qDebug( "ONetworkInterface::ONetworkInterface()" );
     init();
 }
 
 
@@ -904,110 +911,123 @@ OWlanNGMonitoringInterface::~OWlanNGMonitoringInterface()
 {
 }
 
 
 void OWlanNGMonitoringInterface::setEnabled( bool b )
 {
     //FIXME: do nothing if its already in the same mode
 
     QString enable = b ? "true" : "false";
     QString prism = _prismHeader ? "true" : "false";
     QString cmd;
     cmd.sprintf( "$(which wlanctl-ng) %s lnxreq_wlansniff channel=%d enable=%s prismheader=%s",
                  (const char*) _if->name(), 1, (const char*) enable, (const char*) prism );
     system( cmd );
 }
 
 
 QString OWlanNGMonitoringInterface::name() const
 {
     return "wlan-ng";
 }
 
 
 void OWlanNGMonitoringInterface::setChannel( int )
 {
     // wlan-ng devices automatically switch channels when in monitor mode
 }
 
 
 /*======================================================================================
  * OHostAPMonitoringInterface
  *======================================================================================*/
 
 OHostAPMonitoringInterface::OHostAPMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
                            :OMonitoringInterface( iface, prismHeader )
 {
     iface->setMonitoring( this );
 }
 
 OHostAPMonitoringInterface::~OHostAPMonitoringInterface()
 {
 }
 
 void OHostAPMonitoringInterface::setEnabled( bool b )
 {
     // IW_MODE_MONITOR was introduced in Wireless Extensions Version 15
     // Wireless Extensions < Version 15 need iwpriv commandos for monitoring
 
-    //TODO: check wireless extensions version on runtime and use
-    //TODO: SIOCSIWMODE( IW_MODE_MONITOR ) if running on WE >= 15
-
+    #if WIRELESS_EXT > 14
+    if ( b )
+        _if->setMode( "monitor" );  // IW_MODE_MONITOR doesn't support prism header
+    else
+        _if->setMode( "managed" );
+    #else
     int monitorCode = _prismHeader ? 1 : 2;
-
     if ( b )
     {
         _if->setPrivate( "monitor", 1, monitorCode );
     }
     else
     {
         _if->setPrivate( "monitor", 1, 0 );
     }
+    #endif
 }
 
 
 QString OHostAPMonitoringInterface::name() const
 {
     return "hostap";
 }
 
 
 /*======================================================================================
  * OOrinocoNetworkInterface
  *======================================================================================*/
 
 OOrinocoMonitoringInterface::OOrinocoMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
                            :OMonitoringInterface( iface, prismHeader )
 {
     iface->setMonitoring( this );
 }
 
 
 OOrinocoMonitoringInterface::~OOrinocoMonitoringInterface()
 {
 }
 
 
 void OOrinocoMonitoringInterface::setChannel( int c )
 {
     int monitorCode = _prismHeader ? 1 : 2;
     _if->setPrivate( "monitor", 2, monitorCode, c );
 }
 
 
 void OOrinocoMonitoringInterface::setEnabled( bool b )
 {
+    // IW_MODE_MONITOR was introduced in Wireless Extensions Version 15
+    // Wireless Extensions < Version 15 need iwpriv commandos for monitoring
+
+    #if WIRELESS_EXT > 14
+    if ( b )
+        _if->setMode( "monitor" );  // IW_MODE_MONITOR doesn't support prism header
+    else
+        _if->setMode( "managed" );
+    #else
     if ( b )
     {
         setChannel( 1 );
     }
     else
     {
         _if->setPrivate( "monitor", 2, 0, 0 );
     }
+    #endif
 }
 
 
 QString OOrinocoMonitoringInterface::name() const
 {
     return "orinoco";
 }
diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h
index cfb999d..2553a61 100644
--- a/libopie2/opienet/onetwork.h
+++ b/libopie2/opienet/onetwork.h
@@ -59,110 +59,112 @@
 #endif
 #ifndef IW_MAX_PRIV_DEF
 #define IW_MAX_PRIV_DEF        128
 #endif
 
 #define _LINUX_IF_H
 #include <linux/wireless.h>
 
 class ONetworkInterface;
 class OWirelessNetworkInterface;
 class OChannelHopper;
 class OMonitoringInterface;
 
 /*======================================================================================
  * ONetwork
  *======================================================================================*/
 
 /**
  * @brief A container class for all network interfaces
  *
  * This class provides access to all available network interfaces of your computer.
  *
  * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
  */
 class ONetwork : public QObject
 {
   Q_OBJECT
 
  public:
     typedef QDict<ONetworkInterface> InterfaceMap;
     typedef QDictIterator<ONetworkInterface> InterfaceIterator;
 
   public:
     /**
      * @returns the number of available interfaces
      */
     int count() const;
     /**
      * @returns a pointer to the (one and only) @ref ONetwork instance.
      */
     static ONetwork* instance();
     /**
      * @returns an iterator usable for iterating through all network interfaces.
      */
     InterfaceIterator iterator() const;
     /**
      * @returns true, if the @a interface supports the wireless extension protocol.
      */
-     // FIXME QString? -zecke
     bool isWirelessInterface( const char* interface ) const;
     /**
-     * @returns a pointer to the @ref ONetworkInterface object for the specified @a interface or 0, if not found
+     * @returns a pointer to the @ref ONetworkInterface object for the specified @a interface or 0, if not found.
      * @see ONetworkInterface
      */
-     // FIXME: const QString& is prefered over QString!!! -zecke
     ONetworkInterface* interface( const QString& interface ) const;
     /**
      * @internal Rebuild the internal interface database
      * @note Sometimes it might be useful to call this from client code,
      * e.g. after issuing a cardctl insert
      */
     void synchronize();
+    /**
+     * @returns the wireless extension version used at compile time.
+     **/
+    static short wirelessExtensionVersion();
 
   protected:
     ONetwork();
 
   private:
     static ONetwork* _instance;
     InterfaceMap _interfaces;
 };
 
 
 /*======================================================================================
  * ONetworkInterface
  *======================================================================================*/
 
 /**
  * @brief A network interface wrapper.
  *
  * This class provides a wrapper for a network interface. All the cumbersume details of
  * Linux ioctls are hidden under a convenient high-level interface.
  * @warning Most of the setting methods contained in this class require the appropriate
  * process permissions to work.
  *
  * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
  */
 class ONetworkInterface : public QObject
 {
     friend class OMonitoringInterface;
     friend class OCiscoMonitoringInterface;
     friend class OWlanNGMonitoringInterface;
     friend class OHostAPMonitoringInterface;
     friend class OOrinocoMonitoringInterface;
 
   public:
     /**
      * Constructor. Normally you don't create @ref ONetworkInterface objects yourself,
      * but access them via @ref ONetwork::interface().
      */
     ONetworkInterface( QObject* parent, const char* name );
     /**
      * Destructor.
      */
     virtual ~ONetworkInterface();
     /**
      * Associates a @a monitoring interface with this network interface.
      * @note This is currently only useful with @ref OWirelessNetworkInterface objects.
      */
     void setMonitoring( OMonitoringInterface* monitoring );
     /**