- add classes for 802.11 tagged values

- adjust miniwellenreiter accordingly

8 files changed, 481 insertions, 80 deletions

diff --git a/libopie2/examples/opienet/miniwellenreiter/miniwellenreiter.cpp b/libopie2/examples/opienet/miniwellenreiter/miniwellenreiter.cpp
index aec9cc7..7581888 100644
--- a/libopie2/examples/opienet/miniwellenreiter/miniwellenreiter.cpp
+++ b/libopie2/examples/opienet/miniwellenreiter/miniwellenreiter.cpp
@@ -171,14 +171,17 @@ public slots:
     OWaveLanManagementPacket* beacon = (OWaveLanManagementPacket*) p->child( "802.11 Management" );
 
     if ( beacon )
     {
-        if ( stations.find( beacon->SSID() ) )
-            stations[beacon->SSID()]->beacons++;
+        OWaveLanManagementSSID* ssid = static_cast<OWaveLanManagementSSID*>( p->child( "802.11 SSID" ) );
+        QString essid = ssid ? ssid->ID() : "<unknown>";
+
+        if ( stations.find( essid ) )
+            stations[essid]->beacons++;
         else
         {
-            printf( "found new network @ channel %d, SSID = '%s'\n", wiface->channel(), (const char*) beacon->SSID() );
-            stations.insert( beacon->SSID(), new Station( "unknown", wiface->channel(),
+            printf( "found new network @ channel %d, SSID = '%s'\n", wiface->channel(), (const char*) essid );
+            stations.insert( essid, new Station( "unknown", wiface->channel(),
             ((OWaveLanPacket*) beacon->parent())->usesWep() ) );
         }
     }
   }
diff --git a/libopie2/opiecore/oapplication.cpp b/libopie2/opiecore/oapplication.cpp
index a0abcc2..12418d5 100644
--- a/libopie2/opiecore/oapplication.cpp
+++ b/libopie2/opiecore/oapplication.cpp
@@ -91,13 +91,15 @@ void OApplication::init()
         qFatal( "OApplication: Can't create more than one OApplication object. Aborting." );
     }
 }
 
+
 void OApplication::setMainWidget( QWidget* widget )
 {
     showMainWidget( widget );
 }
 
+
 void OApplication::showMainWidget( QWidget* widget, bool nomax )
 {
     #ifdef Q_WS_QWS
     QPEApplication::showMainWidget( widget, nomax );
@@ -105,6 +107,18 @@ void OApplication::showMainWidget( QWidget* widget, bool nomax )
     QApplication::setMainWidget( widget );
     widget->show();
     #endif
     widget->setCaption( _appname );
+}
+
 
+void OApplication::setTitle( QString title ) const
+{
+    if ( mainWidget() )
+    {
+        if ( !title.isNull() )
+            mainWidget()->setCaption( QString(_appname) + QString( " - " ) + title );
+        else
+            mainWidget()->setCaption( _appname );
+    }
 }
+
diff --git a/libopie2/opiecore/oapplication.h b/libopie2/opiecore/oapplication.h
index 736e786..4d25202 100644
--- a/libopie2/opiecore/oapplication.h
+++ b/libopie2/opiecore/oapplication.h
@@ -68,8 +68,9 @@ class OApplication: public OApplicationBaseClass
     * allows access to the single global OApplication object, since
     * more than one cannot be created in the same application. It
     * saves you the trouble of having to pass the pointer explicitly
     * to every function that may require it.
+    *
     * @return the current application object
     */
     static const OApplication* oApplication() { return _instance; };
 
@@ -91,17 +92,32 @@ class OApplication: public OApplicationBaseClass
 
    /**
     * Sets the main widget - reimplemented to call showMainWidget()
     * on Qt/Embedded.
+    *
+    * @param mainWidget the widget to become the main widget
+    * @see QWidget object
     */
     virtual void setMainWidget( QWidget *mainWidget );
 
    /**
     * Shows the main widget - reimplemented to call setMainWidget()
     * on platforms other than Qt/Embedded.
+    *
+    * @param mainWidget the widget to become the main widget
+    * @see QWidget object
     */
     virtual void showMainWidget( QWidget* widget, bool nomax = false );
 
+   /**
+    * Set the application title. The application title will be concatenated
+    * to the application name given in the constructor.
+    *
+    * @param title the title. If not given, resets caption to appname
+    */
+    virtual void setTitle( QString title = QString::null ) const;
+    //virtual void setTitle() const;
+
   protected:
     void init();
 
   private:
diff --git a/libopie2/opienet/802_11_user.h b/libopie2/opienet/802_11_user.h
index 0b3f198..ffdcb93 100644
--- a/libopie2/opienet/802_11_user.h
+++ b/libopie2/opienet/802_11_user.h
@@ -254,13 +254,13 @@ struct ieee_802_11_data_header {
 //	u_int16_t	gapLen;
 //	u_int8_t	gap[8];
 };
 
-#define CAPABILITY_ESS(cap)	((cap) & 0x0001)
-#define CAPABILITY_IBSS(cap)	((cap) & 0x0002)
-#define CAPABILITY_CFP(cap)	((cap) & 0x0004)
-#define CAPABILITY_CFP_REQ(cap)	((cap) & 0x0008)
-#define CAPABILITY_PRIVACY(cap)	((cap) & 0x0010)
+#define CAPABILITY_ESS(cap)     ((cap) & 0x0001)
+#define CAPABILITY_IBSS(cap)    ((cap) & 0x0002)
+#define CAPABILITY_CFP(cap)     ((cap) & 0x0004)
+#define CAPABILITY_CFP_REQ(cap) ((cap) & 0x0008)
+#define CAPABILITY_PRIVACY(cap) ((cap) & 0x0010)
 
 struct ssid_t {
   u_int8_t	element_id;
   u_int8_t	length;
@@ -317,37 +317,45 @@ struct tim_t {
   u_int8_t	bitmap_control;
   u_int8_t	bitmap[251];
 };
 
-#define E_SSID 		0
-#define E_RATES 	1
-#define E_FH	 	2
-#define E_DS 		3
-#define E_CF	 	4
-#define E_TIM	 	5
-#define E_IBSS 		6
-#define E_CHALLENGE 	16
-#define E_CISCO		133
+
+struct ibss_t {
+  u_int8_t	element_id;
+  u_int8_t	length;
+  u_int16_t	atim_window;
+};
+
+
+#define E_SSID      0
+#define E_RATES     1
+#define E_FH        2
+#define E_DS        3
+#define E_CF        4
+#define E_TIM       5
+#define E_IBSS      6
+#define E_CHALLENGE 16
+#define E_CISCO     133
 
 
 struct ieee_802_11_mgmt_body {
-  u_int8_t   	timestamp[8];
-  u_int16_t  	beacon_interval;
+  u_int8_t  timestamp[8];
+  u_int16_t beacon_interval;
 //  u_int16_t 	listen_interval;
 //  u_int16_t 	status_code;
 //  u_int16_t 	aid;
 //  u_char		ap[6];
 //  u_int16_t	reason_code;
 //  u_int16_t	auth_alg;
 //  u_int16_t	auth_trans_seq_num;
 //  struct challenge_t  challenge;
-  u_int16_t	capability_info;
-  struct ssid_t	ssid;
-  struct rates_t 	rates;
-  struct ds_t	ds;
-  struct cf_t	cf;
-  struct fh_t	fh;
-  struct tim_t	tim;
+  u_int16_t capability_info;
+//  struct ssid_t	ssid;
+//  struct rates_t 	rates;
+//  struct ds_t	ds;
+//  struct cf_t	cf;
+//  struct fh_t	fh;
+//  struct tim_t	tim;
 };
 
 
 struct ieee_802_11_data_body {
diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index 1d3b9fe..25c70e0 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -290,9 +290,10 @@ bool ONetworkInterface::isWireless() const
  *======================================================================================*/
 
 OChannelHopper::OChannelHopper( OWirelessNetworkInterface* iface )
                :QObject( 0, "Mickey's funky hopper" ),
-               _iface( iface ), _interval( 0 ), _channel( 0 ), _tid( 0 )
+               _iface( iface ), _interval( 0 ), _channel( 1 ), _tid( 0 ),
+               _maxChannel( iface->channels()+1 )
 {
 }
 
 
@@ -300,12 +301,23 @@ OChannelHopper::~OChannelHopper()
 {
 }
 
 
+bool OChannelHopper::isActive() const
+{
+    return _tid;
+}
+
+
+int OChannelHopper::channel() const
+{
+    return _channel;
+}
+
+
 void OChannelHopper::timerEvent( QTimerEvent* )
 {
-    //FIXME: Get available channels from OWirelessNetworkInterface
-    if ( --_channel < 0 ) _channel = 13;
+    if ( !--_channel ) _channel = _maxChannel;
     _iface->setChannel( _channel );
     qDebug( "OChannelHopper::timerEvent(): set channel %d on interface '%s'",
             _channel, (const char*) _iface->name() );
 }
@@ -318,8 +330,9 @@ void OChannelHopper::setInterval( int interval )
 
     if ( _interval )
         killTimer( _tid );
 
+    _tid = 0;
     _interval = interval;
 
     if ( _interval )
     {
@@ -338,9 +351,9 @@ int OChannelHopper::interval() const
  * OWirelessNetworkInterface
  *======================================================================================*/
 
 OWirelessNetworkInterface::OWirelessNetworkInterface( const QString& name )
-                           :ONetworkInterface( name ), _hopper( this )
+                           :ONetworkInterface( name ), _hopper( 0 )
 {
     qDebug( "OWirelessNetworkInterface::OWirelessNetworkInterface()" );
     init();
 }
@@ -375,15 +388,12 @@ void OWirelessNetworkInterface::init()
         qDebug( "OWirelessNetworkInterface::init(): SIOCGIWRANGE failed (%s)", strerror( errno ) );
         return;
     }
 
-    //TODO: Find out what the difference between num_channel and
-    //      num_frequency is about.
-
     for ( int i = 0; i < range.num_frequency; ++i )
     {
         int freq = (int) ( double( range.freq[i].m ) * pow( 10, range.freq[i].e ) / 1000000.0 );
-        _channels.insert( freq, i );
+        _channels.insert( freq, i+1 );
     }
 }
 
 
@@ -411,15 +421,20 @@ QString OWirelessNetworkInterface::associatedAP() const
 
 
 int OWirelessNetworkInterface::channel() const
 {
+    //FIXME: When monitoring enabled, then use it
+    //FIXME: to gather the current RF channel
+    //FIXME: Until then, get active channel from hopper.
+    if ( _hopper && _hopper->isActive() )
+        return _hopper->channel();
+
     if ( !wioctl( SIOCGIWFREQ ) )
     {
         return -1;
     }
     else
     {
-        //FIXME: This is off-by-one !? Why?
         return _channels[ static_cast<int>(double( _iwr.u.freq.m ) * pow( 10, _iwr.u.freq.e ) / 1000000) ];
     }
 }
 
@@ -460,15 +475,17 @@ int OWirelessNetworkInterface::channels() const
 
 
 void OWirelessNetworkInterface::setChannelHopping( int interval )
 {
-    _hopper.setInterval( interval );
+    if ( !_hopper ) _hopper = new OChannelHopper( this );
+    _hopper->setInterval( interval );
+    //FIXME: When and by whom will the channel hopper be deleted?
 }
 
 
 int OWirelessNetworkInterface::channelHopping() const
 {
-    return _hopper.interval();
+    return _hopper->interval();
 }
 
 
 void OWirelessNetworkInterface::setMonitorMode( bool b )
@@ -478,8 +495,9 @@ void OWirelessNetworkInterface::setMonitorMode( bool b )
     else
         qDebug( "ONetwork(): can't switch monitor mode without installed monitoring interface" );
 }
 
+
 bool OWirelessNetworkInterface::monitorMode() const
 {
     return _mon ? _mon->enabled() : false;
 }
diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h
index 9a68a74..936ac85 100644
--- a/libopie2/opienet/onetwork.h
+++ b/libopie2/opienet/onetwork.h
@@ -141,8 +141,10 @@ class OChannelHopper : public QObject
 {
   public:
     OChannelHopper( OWirelessNetworkInterface* );
     virtual ~OChannelHopper();
+    bool isActive() const;
+    int channel() const;
     virtual void timerEvent( QTimerEvent* );
     void setInterval( int );
     int interval() const;
 
@@ -150,8 +152,9 @@ class OChannelHopper : public QObject
     OWirelessNetworkInterface* _iface;
     int _interval;
     int _channel;
     int _tid;
+    int _maxChannel;
 };
 
 
 /*======================================================================================
@@ -183,9 +186,9 @@ class OWirelessNetworkInterface : public ONetworkInterface
 
     virtual void setMonitorMode( bool );
     virtual bool monitorMode() const;
 
-    virtual void setChannelHopping( int interval );
+    virtual void setChannelHopping( int interval = 0 );
     virtual int channelHopping() const;
 
     virtual void setNickName( const QString& ) {};
     virtual QString nickName() const;
@@ -206,9 +209,9 @@ class OWirelessNetworkInterface : public ONetworkInterface
     bool wioctl( int call ) const;
     bool wioctl( int call, iwreqstruct& ) const;
 
   private:
-    OChannelHopper _hopper;
+    OChannelHopper* _hopper;
 };
 
 
 /*======================================================================================
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index 48f874f..913d42e 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -48,17 +48,20 @@ OPacket::OPacket( packetheaderstruct header, const unsigned char* data, QObject*
         :QObject( parent, "Generic" ), _hdr( header ), _data( data )
 {
     qDebug( "OPacket::OPacket(): (Len %d, CapLen %d)" /*, ctime((const time_t*) header.ts.tv_sec)*/, header.len, header.caplen );
 
+    _end = (unsigned char*) data + header.len;
+    qDebug( "OPacket::data @ %0x, end @ %0x", data, _end );
+
     if ( packetCapturer()->dataLink() == DLT_EN10MB )
     {
         qDebug( "OPacket::OPacket(): Received Packet. Datalink = ETHERNET" );
-        new OEthernetPacket( (const struct ether_header*) data, this );
+        new OEthernetPacket( _end, (const struct ether_header*) data, this );
     }
     else
     {
         qDebug( "OPacket::OPacket(): Received Packet. Datalink = IEEE802.11" );
-        new OWaveLanPacket( (const struct ieee_802_11_header*) data, this );
+        new OWaveLanPacket( _end, (const struct ieee_802_11_header*) data, this );
     }
 }
 
 
@@ -108,9 +111,9 @@ int OPacket::len() const
 /*======================================================================================
  * OEthernetPacket
  *======================================================================================*/
 
-OEthernetPacket::OEthernetPacket( const struct ether_header* data, QObject* parent )
+OEthernetPacket::OEthernetPacket( const unsigned char* end, const struct ether_header* data, QObject* parent )
                 :QObject( parent, "Ethernet" ), _ether( data )
 
 {
 
@@ -123,9 +126,9 @@ OEthernetPacket::OEthernetPacket( const struct ether_header* data, QObject* pare
         qDebug( "Destination is broadcast address" );
 
     switch ( type() )
     {
-        case ETHERTYPE_IP: new OIPPacket( (const struct iphdr*) (data+1), this ); break;
+        case ETHERTYPE_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break;
         case ETHERTYPE_ARP: { qDebug( "OPacket::OPacket(): Received Ethernet Packet : Type = ARP" ); break; }
         case ETHERTYPE_REVARP: { qDebug( "OPacket::OPacket(): Received Ethernet Packet : Type = RARP" ); break; }
         default: qDebug( "OPacket::OPacket(): Received Ethernet Packet : Type = UNKNOWN" );
     }
@@ -159,9 +162,9 @@ int OEthernetPacket::type() const
  * OIPPacket
  *======================================================================================*/
 
 
-OIPPacket::OIPPacket( const struct iphdr* data, QObject* parent )
+OIPPacket::OIPPacket( const unsigned char* end, const struct iphdr* data, QObject* parent )
           :QObject( parent, "IP" ), _iphdr( data )
 
 {
     qDebug( "OIPPacket::OIPPacket(): decoding IP header..." );
@@ -173,10 +176,10 @@ OIPPacket::OIPPacket( const struct iphdr* data, QObject* parent )
     qDebug( "  toAddress: %s", (const char*) toIPAddress().toString() );
 
     switch ( protocol() )
     {
-        case IPPROTO_UDP: new OUDPPacket( (const struct udphdr*) (data+1), this ); break;
-        case IPPROTO_TCP: new OTCPPacket( (const struct tcphdr*) (data+1), this ); break;
+        case IPPROTO_UDP: new OUDPPacket( end, (const struct udphdr*) (data+1), this ); break;
+        case IPPROTO_TCP: new OTCPPacket( end, (const struct tcphdr*) (data+1), this ); break;
         default: qDebug( "OIPPacket::OIPPacket(): unknown IP protocol type = %d", protocol() );
     }
 
 }
@@ -243,9 +246,9 @@ int OIPPacket::checksum() const
  * OUDPPacket
  *======================================================================================*/
 
 
-OUDPPacket::OUDPPacket( const struct udphdr* data, QObject* parent )
+OUDPPacket::OUDPPacket( const unsigned char* end, const struct udphdr* data, QObject* parent )
            :QObject( parent, "UDP" ), _udphdr( data )
 
 {
     qDebug( "OUDPPacket::OUDPPacket(): decoding UDP header..." );
@@ -260,9 +263,9 @@ OUDPPacket::~OUDPPacket()
  * OTCPPacket
  *======================================================================================*/
 
 
-OTCPPacket::OTCPPacket( const struct tcphdr* data, QObject* parent )
+OTCPPacket::OTCPPacket( const unsigned char* end, const struct tcphdr* data, QObject* parent )
            :QObject( parent, "TCP" ), _tcphdr( data )
 
 {
     qDebug( "OTCPPacket::OTCPPacket(): decoding TCP header..." );
@@ -277,9 +280,9 @@ OTCPPacket::~OTCPPacket()
  * OWaveLanPacket
  *======================================================================================*/
 
 
-OWaveLanPacket::OWaveLanPacket( const struct ieee_802_11_header* data, QObject* parent )
+OWaveLanPacket::OWaveLanPacket( const unsigned char* end, const struct ieee_802_11_header* data, QObject* parent )
                 :QObject( parent, "802.11" ), _wlanhdr( data )
 
 {
     qDebug( "OWaveLanPacket::OWaveLanPacket(): decoding IEEE 802.11 header..." );
@@ -294,11 +297,11 @@ OWaveLanPacket::OWaveLanPacket( const struct ieee_802_11_header* data, QObject*
     qDebug( "MAC4: %s", (const char*) macAddress4().toString() );
 
     switch ( type() )
     {
-        case T_MGMT: new OWaveLanManagementPacket( (const struct ieee_802_11_mgmt_header*) data, this ); break;
-        case T_DATA: new OWaveLanDataPacket( (const struct ieee_802_11_data_header*) data, this ); break;
-        //case T_CTRL: new OWaveLanControlPacket( (const struct ieee_802_11_ctrl_header*) data, this ); break;
+        case T_MGMT: new OWaveLanManagementPacket( end, (const struct ieee_802_11_mgmt_header*) data, this ); break;
+        case T_DATA: new OWaveLanDataPacket( end, (const struct ieee_802_11_data_header*) data, this ); break;
+        //case T_CTRL: new OWaveLanControlPacket( end, (const struct ieee_802_11_ctrl_header*) data, this ); break;
         default: qDebug( "OWaveLanPacket::OWaveLanPacket(): Warning: Unknown type!" );
     }
 }
 
@@ -382,9 +385,9 @@ bool OWaveLanPacket::usesWep() const
 /*======================================================================================
  * OWaveLanManagementPacket
  *======================================================================================*/
 
-OWaveLanManagementPacket::OWaveLanManagementPacket( const struct ieee_802_11_mgmt_header* data, OWaveLanPacket* parent )
+OWaveLanManagementPacket::OWaveLanManagementPacket( const unsigned char* end, const struct ieee_802_11_mgmt_header* data, OWaveLanPacket* parent )
                 :QObject( parent, "802.11 Management" ), _header( data ),
                 _body( (const struct ieee_802_11_mgmt_body*) (data+1) )
 {
     qDebug( "OWaveLanManagementPacket::OWaveLanManagementPacket(): decoding frame..." );
@@ -392,12 +395,29 @@ OWaveLanManagementPacket::OWaveLanManagementPacket( const struct ieee_802_11_mgm
     switch ( ((OWaveLanPacket*) this->parent() )->subType() )
     {
         case ST_BEACON:
         {
-            qDebug( "TYPE: BEACON FRAME" );
-            qDebug( "ESSID: %s", (const char*) SSID() );
-            break;
+            // nice, received a beacon...
+        }
+    }
+
+    // grab tagged values
+    const unsigned char* ptr = (const unsigned char*) (_body+1);
+    while (ptr < end)
+    {
+        switch ( *ptr )
+        {
+            case E_SSID: new OWaveLanManagementSSID( end, (struct ssid_t*) ptr, this ); break;
+            case E_FH: new OWaveLanManagementFH( end, (struct fh_t*) ptr, this ); break;
+            case E_DS: new OWaveLanManagementDS( end, (struct ds_t*) ptr, this ); break;
+            case E_RATES: new OWaveLanManagementRates( end, (struct rates_t*) ptr, this ); break;
+            case E_CF: new OWaveLanManagementCF( end, (struct cf_t*) ptr, this ); break;
+            case E_TIM: new OWaveLanManagementTim( end, (struct tim_t*) ptr, this ); break;
+            case E_IBSS: new OWaveLanManagementIBSS( end, (struct ibss_t*) ptr, this ); break;
+            case E_CHALLENGE: new OWaveLanManagementChallenge( end, (struct challenge_t*) ptr, this ); break;
         }
+        ptr+= ( ( struct ssid_t* ) ptr )->length; // skip length of tagged value
+        ptr+= 2; // skip tag ID and length
     }
 }
 
 
@@ -405,24 +425,193 @@ OWaveLanManagementPacket::~OWaveLanManagementPacket()
 {
 }
 
 
-QString OWaveLanManagementPacket::SSID() const
+int OWaveLanManagementPacket::beaconInterval() const
+{
+    return EXTRACT_LE_16BITS( &_body->beacon_interval );
+}
+
+
+int OWaveLanManagementPacket::capabilities() const
+{
+    return EXTRACT_LE_16BITS( &_body->capability_info );
+}
+
+
+bool OWaveLanManagementPacket::canESS() const
 {
-    int length = _body->ssid.length;
+    return CAPABILITY_ESS( EXTRACT_LE_16BITS( &_body->capability_info ) );
+}
+
+
+bool OWaveLanManagementPacket::canIBSS() const
+{
+    return CAPABILITY_IBSS( EXTRACT_LE_16BITS( &_body->capability_info ) );
+}
+
+
+bool OWaveLanManagementPacket::canCFP() const
+{
+    return CAPABILITY_CFP( EXTRACT_LE_16BITS( &_body->capability_info ) );
+}
+
+
+bool OWaveLanManagementPacket::canCFP_REQ() const
+{
+    return CAPABILITY_CFP_REQ( EXTRACT_LE_16BITS( &_body->capability_info ) );
+}
+
+
+bool OWaveLanManagementPacket::canPrivacy() const
+{
+    return CAPABILITY_PRIVACY( EXTRACT_LE_16BITS( &_body->capability_info ) );
+}
+
+
+/*======================================================================================
+ * OWaveLanManagementSSID
+ *======================================================================================*/
+
+OWaveLanManagementSSID::OWaveLanManagementSSID( const unsigned char* end, const struct ssid_t* data, QObject* parent )
+                :QObject( parent, "802.11 SSID" ), _data( data )
+{
+    qDebug( "OWaveLanManagementSSID()" );
+}
+
+
+OWaveLanManagementSSID::~OWaveLanManagementSSID()
+{
+}
+
+
+QString OWaveLanManagementSSID::ID() const
+{
+    int length = _data->length;
     if ( length > 32 ) length = 32;
     char essid[length+1];
-    memcpy( &essid, _body->ssid.ssid, length );
+    memcpy( &essid, &_data->ssid, length );
     essid[length] = 0x0;
     return essid;
 }
 
 
 /*======================================================================================
+ * OWaveLanManagementRates
+ *======================================================================================*/
+
+OWaveLanManagementRates::OWaveLanManagementRates( const unsigned char* end, const struct rates_t* data, QObject* parent )
+                :QObject( parent, "802.11 Rates" ), _data( data )
+{
+    qDebug( "OWaveLanManagementRates()" );
+}
+
+
+OWaveLanManagementRates::~OWaveLanManagementRates()
+{
+}
+
+/*======================================================================================
+ * OWaveLanManagementCF
+ *======================================================================================*/
+
+OWaveLanManagementCF::OWaveLanManagementCF( const unsigned char* end, const struct cf_t* data, QObject* parent )
+                :QObject( parent, "802.11 CF" ), _data( data )
+{
+    qDebug( "OWaveLanManagementCF()" );
+}
+
+
+OWaveLanManagementCF::~OWaveLanManagementCF()
+{
+}
+
+/*======================================================================================
+ * OWaveLanManagementFH
+ *======================================================================================*/
+
+OWaveLanManagementFH::OWaveLanManagementFH( const unsigned char* end, const struct fh_t* data, QObject* parent )
+                :QObject( parent, "802.11 FH" ), _data( data )
+{
+    qDebug( "OWaveLanManagementFH()" );
+}
+
+
+OWaveLanManagementFH::~OWaveLanManagementFH()
+{
+}
+
+/*======================================================================================
+ * OWaveLanManagementDS
+ *======================================================================================*/
+
+OWaveLanManagementDS::OWaveLanManagementDS( const unsigned char* end, const struct ds_t* data, QObject* parent )
+                :QObject( parent, "802.11 DS" ), _data( data )
+{
+    qDebug( "OWaveLanManagementDS()" );
+}
+
+
+OWaveLanManagementDS::~OWaveLanManagementDS()
+{
+}
+
+
+int OWaveLanManagementDS::channel() const
+{
+    return _data->channel;
+}
+
+/*======================================================================================
+ * OWaveLanManagementTim
+ *======================================================================================*/
+
+OWaveLanManagementTim::OWaveLanManagementTim( const unsigned char* end, const struct tim_t* data, QObject* parent )
+                :QObject( parent, "802.11 Tim" ), _data( data )
+{
+    qDebug( "OWaveLanManagementTim()" );
+}
+
+
+OWaveLanManagementTim::~OWaveLanManagementTim()
+{
+}
+
+/*======================================================================================
+ * OWaveLanManagementIBSS
+ *======================================================================================*/
+
+OWaveLanManagementIBSS::OWaveLanManagementIBSS( const unsigned char* end, const struct ibss_t* data, QObject* parent )
+                :QObject( parent, "802.11 IBSS" ), _data( data )
+{
+    qDebug( "OWaveLanManagementIBSS()" );
+}
+
+
+OWaveLanManagementIBSS::~OWaveLanManagementIBSS()
+{
+}
+
+/*======================================================================================
+ * OWaveLanManagementChallenge
+ *======================================================================================*/
+
+OWaveLanManagementChallenge::OWaveLanManagementChallenge( const unsigned char* end, const struct challenge_t* data, QObject* parent )
+                :QObject( parent, "802.11 Challenge" ), _data( data )
+{
+    qDebug( "OWaveLanManagementChallenge()" );
+}
+
+
+OWaveLanManagementChallenge::~OWaveLanManagementChallenge()
+{
+}
+
+/*======================================================================================
  * OWaveLanDataPacket
  *======================================================================================*/
 
-OWaveLanDataPacket::OWaveLanDataPacket( const struct ieee_802_11_data_header* data, OWaveLanPacket* parent )
+OWaveLanDataPacket::OWaveLanDataPacket( const unsigned char* end, const struct ieee_802_11_data_header* data, OWaveLanPacket* parent )
                 :QObject( parent, "802.11 Data" ), _header( data )
 {
     //qDebug( "size of header = %d", sizeof( struct ieee_802_11_data_header ) );
     //qDebug( "header: %0x", data );
@@ -430,9 +619,9 @@ OWaveLanDataPacket::OWaveLanDataPacket( const struct ieee_802_11_data_header* da
     //qDebug( "payload: %0x", payload );
 
     if (!( ( (OWaveLanPacket*) this->parent())->duration() )) payload -= 6; // compensation for missing last address
 
-    new OLLCPacket( (const struct ieee_802_11_802_2_header*) payload, this );
+    new OLLCPacket( end, (const struct ieee_802_11_802_2_header*) payload, this );
 }
 
 
 OWaveLanDataPacket::~OWaveLanDataPacket()
@@ -443,9 +632,9 @@ OWaveLanDataPacket::~OWaveLanDataPacket()
 /*======================================================================================
  * OLLCPacket
  *======================================================================================*/
 
-OLLCPacket::OLLCPacket( const struct ieee_802_11_802_2_header* data, QObject* parent )
+OLLCPacket::OLLCPacket( const unsigned char* end, const struct ieee_802_11_802_2_header* data, QObject* parent )
                 :QObject( parent, "802.11 802_2" ), _header( data )
 {
     qDebug( "OLLCPacket::OLLCPacket(): decoding frame..." );
 
@@ -454,9 +643,9 @@ OLLCPacket::OLLCPacket( const struct ieee_802_11_802_2_header* data, QObject* pa
         qDebug( "OLLCPacket::OLLCPacket(): contains an encapsulated Ethernet frame (type=%04X)", EXTRACT_16BITS( &_header->type ) );
 
         switch ( EXTRACT_16BITS( &_header->type ) ) // defined in linux/if_ether.h
         {
-            case ETH_P_IP: new OIPPacket( (const struct iphdr*) (data+1), this ); break;
+            case ETH_P_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break;
             default: qDebug( "OLLCPacket::OLLCPacket(): Unknown Encapsulation Type" );
         }
 
     }
@@ -472,9 +661,9 @@ OLLCPacket::~OLLCPacket()
  *======================================================================================*/
 
 OPacketCapturer::OPacketCapturer( QObject* parent, const char* name )
                  :QObject( parent, name ), _name( QString::null ), _open( false ),
-                 _pch( 0 )
+                 _pch( 0 ), _sn( 0 )
 {
 }
 
 
@@ -516,8 +705,13 @@ bool OPacketCapturer::blocking() const
 void OPacketCapturer::close()
 {
     if ( _open )
     {
+        if ( _sn )
+        {
+            _sn->disconnect( SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
+            delete _sn;
+        }
         pcap_close( _pch );
         _open = false;
     }
 }
@@ -544,9 +738,12 @@ int OPacketCapturer::fileno() const
 
 OPacket* OPacketCapturer::next()
 {
     packetheaderstruct header;
+    qDebug( "==> OPacketCapturer::next()" );
     const unsigned char* pdata = pcap_next( _pch, &header );
+    qDebug( "<== OPacketCapturer::next()" );
+
     if ( header.len )
         return new OPacket( header, pdata, this );
     else
         return 0;
@@ -576,13 +773,13 @@ bool OPacketCapturer::open( const QString& name )
         qDebug( "OPacketCapturer::open(): libpcap opened successfully." );
         _pch = handle;
         _open = true;
 
-        // in case we have a qapp, create a socket notifier
+        // in case we have an application object, create a socket notifier
         if ( qApp )
         {
-            QSocketNotifier* sn = new QSocketNotifier( fileno(), QSocketNotifier::Read, this );
-            connect( sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
+            _sn = new QSocketNotifier( fileno(), QSocketNotifier::Read );
+            connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
         }
 
         return true;
     }
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h
index 65c550c..0b06572 100644
--- a/libopie2/opienet/opcap.h
+++ b/libopie2/opienet/opcap.h
@@ -59,8 +59,9 @@ typedef struct timeval timevalstruct;
 typedef struct pcap_pkthdr packetheaderstruct;
 
 /* FORWARDS */
 class OPacketCapturer;
+class QSocketNotifier;
 
 /*======================================================================================
  * OPacket - A frame on the wire
  *======================================================================================*/
@@ -83,8 +84,9 @@ class OPacket : public QObject
 
   private:
     const packetheaderstruct _hdr;  // pcap packet header
     const unsigned char* _data;     // pcap packet data
+    const unsigned char* _end;      // end of pcap packet data
 };
 
 /*======================================================================================
  * OEthernetPacket - DLT_EN10MB frame
@@ -94,9 +96,9 @@ class OEthernetPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OEthernetPacket( const struct ether_header*, QObject* parent = 0 );
+    OEthernetPacket( const unsigned char*, const struct ether_header*, QObject* parent = 0 );
     virtual ~OEthernetPacket();
 
     OMacAddress sourceAddress() const;
     OMacAddress destinationAddress() const;
@@ -115,9 +117,9 @@ class OWaveLanPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OWaveLanPacket( const struct ieee_802_11_header*, QObject* parent = 0 );
+    OWaveLanPacket( const unsigned char*, const struct ieee_802_11_header*, QObject* parent = 0 );
     virtual ~OWaveLanPacket();
 
     int duration() const;
     bool fromDS() const;
@@ -145,29 +147,168 @@ class OWaveLanManagementPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OWaveLanManagementPacket( const struct ieee_802_11_mgmt_header*, OWaveLanPacket* parent = 0 );
+    OWaveLanManagementPacket( const unsigned char*, const struct ieee_802_11_mgmt_header*, OWaveLanPacket* parent = 0 );
     virtual ~OWaveLanManagementPacket();
 
-    QString SSID() const;
+    int beaconInterval() const;
+    int capabilities() const; // generic
+
+    bool canESS() const;
+    bool canIBSS() const;
+    bool canCFP() const;
+    bool canCFP_REQ() const;
+    bool canPrivacy() const;
 
   private:
     const struct ieee_802_11_mgmt_header* _header;
     const struct ieee_802_11_mgmt_body* _body;
 };
 
 
 /*======================================================================================
+ * OWaveLanManagementSSID
+ *======================================================================================*/
+
+class OWaveLanManagementSSID : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementSSID( const unsigned char*, const struct ssid_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementSSID();
+
+    QString ID() const;
+
+  private:
+    const struct ssid_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementRates
+ *======================================================================================*/
+
+class OWaveLanManagementRates : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementRates( const unsigned char*, const struct rates_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementRates();
+
+  private:
+    const struct rates_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementCF
+ *======================================================================================*/
+
+class OWaveLanManagementCF : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementCF( const unsigned char*, const struct cf_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementCF();
+
+  private:
+    const struct cf_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementFH
+ *======================================================================================*/
+
+class OWaveLanManagementFH : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementFH( const unsigned char*, const struct fh_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementFH();
+
+  private:
+    const struct fh_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementDS
+ *======================================================================================*/
+
+class OWaveLanManagementDS : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementDS( const unsigned char*, const struct ds_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementDS();
+
+    int channel() const;
+
+  private:
+    const struct ds_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementTim
+ *======================================================================================*/
+
+class OWaveLanManagementTim : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementTim( const unsigned char*, const struct tim_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementTim();
+
+  private:
+    const struct tim_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementIBSS
+ *======================================================================================*/
+
+class OWaveLanManagementIBSS : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementIBSS( const unsigned char*, const struct ibss_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementIBSS();
+
+  private:
+    const struct ibss_t* _data;
+};
+
+/*======================================================================================
+ * OWaveLanManagementChallenge
+ *======================================================================================*/
+
+class OWaveLanManagementChallenge : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OWaveLanManagementChallenge( const unsigned char*, const struct challenge_t*, QObject* parent = 0 );
+    virtual ~OWaveLanManagementChallenge();
+
+  private:
+    const struct challenge_t* _data;
+};
+
+/*======================================================================================
  * OWaveLanDataPacket - type: data (T_DATA)
  *======================================================================================*/
 
 class OWaveLanDataPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OWaveLanDataPacket( const struct ieee_802_11_data_header*, OWaveLanPacket* parent = 0 );
+    OWaveLanDataPacket( const unsigned char*, const struct ieee_802_11_data_header*, OWaveLanPacket* parent = 0 );
     virtual ~OWaveLanDataPacket();
 
   private:
     const struct ieee_802_11_data_header* _header;
@@ -181,9 +322,9 @@ class OLLCPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OLLCPacket( const struct ieee_802_11_802_2_header* data, QObject* parent = 0 );
+    OLLCPacket( const unsigned char*, const struct ieee_802_11_802_2_header* data, QObject* parent = 0 );
     virtual ~OLLCPacket();
 
   private:
     const struct ieee_802_11_802_2_header* _header;
@@ -197,9 +338,9 @@ class OIPPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OIPPacket( const struct iphdr*, QObject* parent = 0 );
+    OIPPacket( const unsigned char*, const struct iphdr*, QObject* parent = 0 );
     virtual ~OIPPacket();
 
     QHostAddress fromIPAddress() const;
     QHostAddress toIPAddress() const;
@@ -224,9 +365,9 @@ class OUDPPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OUDPPacket( const struct udphdr*, QObject* parent = 0 );
+    OUDPPacket( const unsigned char*, const struct udphdr*, QObject* parent = 0 );
     virtual ~OUDPPacket();
 
     int fromPort() const;
     int toPort() const;
@@ -243,9 +384,9 @@ class OTCPPacket : public QObject
 {
   Q_OBJECT
 
   public:
-    OTCPPacket( const struct tcphdr*, QObject* parent = 0 );
+    OTCPPacket( const unsigned char*, const struct tcphdr*, QObject* parent = 0 );
     virtual ~OTCPPacket();
 
     int fromPort() const;
     int toPort() const;
@@ -283,11 +424,12 @@ class OPacketCapturer : public QObject
   protected slots:
     void readyToReceive();
 
   protected:
-    QString _name;  // devicename
-    bool _open;     // check this before doing pcap calls
-    pcap_t* _pch;   // pcap library handle
+    QString _name;          // devicename
+    bool _open;             // check this before doing pcap calls
+    pcap_t* _pch;           // pcap library handle
+    QSocketNotifier* _sn;   // socket notifier for main loop
     mutable char _errbuf[PCAP_ERRBUF_SIZE];
 };
 
 #endif // OPCAP_H