- fix off-by-one bug in OChannelHopper

- fix bug in OPacket which broke everything using it
- expose both wireless extension versions (runtime + compile time) through API

3 files changed, 18 insertions, 8 deletions

diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index b6c9876..e141097 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -114,17 +114,17 @@ void ONetwork::synchronize()
             iface = new ONetworkInterface( this, (const char*) str );

         }

         _interfaces.insert( str, iface );

         s.readLine();

     }

 }

 

 

-short ONetwork::wirelessExtensionVersion()

+short ONetwork::wirelessExtensionCompileVersion()

 {

     return WIRELESS_EXT;

 }

 

 

 int ONetwork::count() const

 {

     return _interfaces.count();

@@ -377,34 +377,33 @@ bool ONetworkInterface::isWireless() const
 /*======================================================================================

  * OChannelHopper

  *======================================================================================*/

 

 OChannelHopper::OChannelHopper( OWirelessNetworkInterface* iface )

                :QObject( 0, "Mickey's funky hopper" ),

                _iface( iface ), _interval( 0 ), _tid( 0 )

 {

-    int _maxChannel = iface->channels()+1;

+    int _maxChannel = iface->channels();

     // generate fancy hopping sequence honoring the device capabilities

     if ( _maxChannel >=  1 ) _channels.append(  1 );

     if ( _maxChannel >=  7 ) _channels.append(  7 );

     if ( _maxChannel >= 13 ) _channels.append( 13 );

     if ( _maxChannel >=  2 ) _channels.append(  2 );

     if ( _maxChannel >=  8 ) _channels.append(  8 );

     if ( _maxChannel >=  3 ) _channels.append(  3 );

     if ( _maxChannel >= 14 ) _channels.append( 14 );

     if ( _maxChannel >=  9 ) _channels.append(  9 );

     if ( _maxChannel >=  4 ) _channels.append(  4 );

     if ( _maxChannel >= 10 ) _channels.append( 10 );

     if ( _maxChannel >=  5 ) _channels.append(  5 );

     if ( _maxChannel >= 11 ) _channels.append( 11 );

     if ( _maxChannel >=  6 ) _channels.append(  6 );

     if ( _maxChannel >= 12 ) _channels.append( 12 );

     _channel = _channels.begin();

-

 }

 

 

 OChannelHopper::~OChannelHopper()

 {

 }

 

 

@@ -556,26 +555,33 @@ void OWirelessNetworkInterface::buildInformation()
 

         struct iw_range range;

         memcpy( &range, buffer, sizeof range );

 

         odebug << "OWirelessNetworkInterface::buildInformation(): Interface reported to have " << (int) range.num_frequency << " channels." << oendl;

         for ( int i = 0; i < range.num_frequency; ++i )

         {

             int freq = (int) ( double( range.freq[i].m ) * pow( 10.0, range.freq[i].e ) / 1000000.0 );

+            odebug << "OWirelessNetworkInterface::buildInformation: Adding frequency " << freq << " as channel " << i+1 << oendl;

             _channels.insert( freq, i+1 );

         }

     }

 

     memcpy( &_range, buffer, sizeof( struct iw_range ) );

     odebug << "OWirelessNetworkInterface::buildInformation(): Information block constructed." << oendl;

     free(buffer);

 }

 

 

+short OWirelessNetworkInterface::wirelessExtensionDriverVersion() const

+{

+    return _range.we_version_compiled;

+}

+

+

 void OWirelessNetworkInterface::buildPrivateList()

 {

     odebug << "OWirelessNetworkInterface::buildPrivateList()" << oendl;

 

     struct iw_priv_args priv[IW_MAX_PRIV_DEF];

 

     _iwr.u.data.pointer = (char*) &priv;

     _iwr.u.data.length = IW_MAX_PRIV_DEF; // length in terms of number of (sizeof iw_priv_args), not (sizeof iw_priv_args) itself

diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h
index f5fbe1d..a49c8fb 100644
--- a/libopie2/opienet/onetwork.h
+++ b/libopie2/opienet/onetwork.h
@@ -120,17 +120,17 @@ class ONetwork : public QObject
      * @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();
+    static short wirelessExtensionCompileVersion();
 
   protected:
     ONetwork();
 
   private:
     static ONetwork* _instance;
     InterfaceMap _interfaces;
     class Private;
@@ -446,18 +446,22 @@ class OWirelessNetworkInterface : public ONetworkInterface
      */
     virtual OStationList* scanNetwork();
     /**
      * @return signal strength to associated neighbour (in percent).
      * In infrastructure mode, this is the signal strength of the Access Point.
      * In other modes the result is driver dependent.
      */
     virtual int signalStrength() const;
-    /** @internal commit pending changes to the driver
-     *
+    /**
+     * @returns the wireless extension version used by the interface driver.
+     **/
+    short wirelessExtensionDriverVersion() const;
+    /**
+     * @internal commit pending changes to the driver
      */
     void commit() const;
 
   protected:
     void buildInformation();
     void buildPrivateList();
     void dumpInformation() const;
     virtual void init();
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index f8ebe6b..a9dc577 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -53,19 +53,19 @@ namespace Net  {
 /*======================================================================================
  * OPacket
  *======================================================================================*/
 
 OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char* data, QObject* parent )
         :QObject( parent, "Generic" ), _hdr( header ), _data( 0 )
 {
 
-    _data = new unsigned char[sizeof data];
+    _data = new unsigned char[ header.len ];
     assert( _data );
-    memcpy( const_cast<unsigned char*>(_data), data, sizeof data );
+    memcpy( const_cast<unsigned char*>(_data), data, header.len );
     // We have to copy the data structure here, because the 'data' pointer handed by libpcap
     // points to an internal region which is reused by lipcap.
     odebug << "OPacket: Length = " << header.len << ", Caplen = " << header.caplen << oendl;
     _end = (unsigned char*) _data + header.len;
 
     switch ( datalink )
     {
         case DLT_EN10MB: