add prism header parsing capability!

4 files changed, 67 insertions, 2 deletions

diff --git a/libopie2/opienet/802_11_user.h b/libopie2/opienet/802_11_user.h
index f596bd8..cd98503 100644
--- a/libopie2/opienet/802_11_user.h
+++ b/libopie2/opienet/802_11_user.h
@@ -308,128 +308,142 @@ struct ds_t {
   u_int8_t	element_id;
   u_int8_t	length;
   u_int8_t	channel;
 };
 
 
 struct cf_t {
   u_int8_t	element_id;
   u_int8_t	length;
   u_int8_t	count;
   u_int8_t	period;
   u_int16_t	max_duration;
   u_int16_t	dur_remaing;
 };
 
 
 struct tim_t {
   u_int8_t	element_id;
   u_int8_t	length;
   u_int8_t	count;
   u_int8_t	period;
   u_int8_t	bitmap_control;
   u_int8_t	bitmap[251];
 };
 
 
 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_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;
 };
 
+/* a 802.11 value */
+struct val_80211 {
+    unsigned int did;
+    unsigned short status, len;
+    unsigned int data;
+};
+
+/* header attached during prism monitor mode */
+struct prism_hdr {
+    unsigned int msgcode, msglen;
+    char devname[16];
+    struct val_80211 hosttime, mactime, channel, rssi, sq, signal,
+        noise, rate, istx, frmlen;
+};
 
 struct ieee_802_11_data_body {
 //FIXME
 };
 
 struct ieee_802_11_control_body {
 //FIXME
 };
 
 struct ctrl_rts_t {
   u_int16_t	fc;
   u_int16_t	duration;
   u_int8_t	ra[6];
   u_int8_t	ta[6];
   u_int8_t	fcs[4];
 };
 
 #define CTRL_RTS_LEN	(2+2+6+6+4)
 
 struct ctrl_cts_t {
   u_int16_t	fc;
   u_int16_t	duration;
   u_int8_t	ra[6];
   u_int8_t	fcs[4];
 };
 
 #define CTRL_CTS_LEN	(2+2+6+4)
 
 struct ctrl_ack_t {
   u_int16_t	fc;
   u_int16_t	duration;
   u_int8_t	ra[6];
   u_int8_t	fcs[4];
 };
 
 #define CTRL_ACK_LEN	(2+2+6+4)
 
 struct ctrl_ps_poll_t {
   u_int16_t	fc;
   u_int16_t	aid;
   u_int8_t	bssid[6];
   u_int8_t	ta[6];
   u_int8_t	fcs[4];
 };
 
 #define CTRL_PS_POLL_LEN	(2+2+6+6+4)
 
 struct ctrl_end_t {
   u_int16_t	fc;
   u_int16_t	duration;
   u_int8_t	ra[6];
   u_int8_t	bssid[6];
   u_int8_t	fcs[4];
 };
 
 #define CTRL_END_LEN	(2+2+6+6+4)
 
 struct ctrl_end_ack_t {
   u_int16_t	fc;
   u_int16_t	duration;
   u_int8_t	ra[6];
   u_int8_t	bssid[6];
   u_int8_t	fcs[4];
 };
diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index be2736a..95e7043 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -590,129 +590,130 @@ void OWirelessNetworkInterface::setChannel( int c ) const
         memset( &_iwr, 0, sizeof( struct iwreq ) );
         _iwr.u.freq.m = c;
         _iwr.u.freq.e = 0;
         wioctl( SIOCSIWFREQ );
     }
     else
     {
         _mon->setChannel( c );
     }
 }
 
 
 double OWirelessNetworkInterface::frequency() const
 {
     if ( !wioctl( SIOCGIWFREQ ) )
     {
         return -1.0;
     }
     else
     {
         return double( _iwr.u.freq.m ) * pow( 10.0, _iwr.u.freq.e ) / 1000000000.0;
     }
 }
 
 
 int OWirelessNetworkInterface::channels() const
 {
     return _channels.count();
 }
 
 
 void OWirelessNetworkInterface::setChannelHopping( int interval )
 {
     if ( !_hopper ) _hopper = new OChannelHopper( this );
     _hopper->setInterval( interval );
     //FIXME: When and by whom will the channel hopper be deleted?
     //TODO: rely on QObject hierarchy
 }
 
 
 int OWirelessNetworkInterface::channelHopping() const
 {
     return _hopper->interval();
 }
 
 
 OChannelHopper* OWirelessNetworkInterface::channelHopper() const
 {
     return _hopper;
 }
 
 
 void OWirelessNetworkInterface::setMonitorMode( bool b )
 {
     if ( _mon )
         _mon->setEnabled( b );
     else
         qDebug( "ONetwork(): can't switch monitor mode without installed monitoring interface" );
 }
 
 
 bool OWirelessNetworkInterface::monitorMode() const
 {
     qDebug( "dataLinkType = %d", dataLinkType() );
-    return dataLinkType() == ARPHRD_IEEE80211;
+    return ( dataLinkType() == ARPHRD_IEEE80211 || dataLinkType() == 802 );
+    // 802 is the header type for PRISM - Linux support for this is pending...
 }
 
 
 QString OWirelessNetworkInterface::nickName() const
 {
     char str[IW_ESSID_MAX_SIZE];
     _iwr.u.data.pointer = &str[0];
     _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;
@@ -872,85 +873,85 @@ QString OWlanNGMonitoringInterface::name() const
 
 void OWlanNGMonitoringInterface::setChannel( int )
 {
     // wlan-ng devices automatically switch channels when in monitor mode
 }
 
 
 /*======================================================================================
  * OHostAPMonitoringInterface
  *======================================================================================*/
 
 OHostAPMonitoringInterface::OHostAPMonitoringInterface( ONetworkInterface* iface )
                            :OMonitoringInterface( iface )
 {
     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 ( b )
     {
         _if->setPrivate( "monitor", 1, 2 );
     }
     else
     {
         _if->setPrivate( "monitor", 1, 0 );
     }
 }
 
 
 QString OHostAPMonitoringInterface::name() const
 {
     return "hostap";
 }
 
 
 /*======================================================================================
  * OOrinocoNetworkInterface
  *======================================================================================*/
 
 OOrinocoMonitoringInterface::OOrinocoMonitoringInterface( ONetworkInterface* iface )
                            :OMonitoringInterface( iface )
 {
     iface->setMonitoring( this );
 }
 
 
 OOrinocoMonitoringInterface::~OOrinocoMonitoringInterface()
 {
 }
 
 
 void OOrinocoMonitoringInterface::setChannel( int c )
 {
-    _if->setPrivate( "monitor", 2, 2, c );
+    _if->setPrivate( "monitor", 2, 1, c );
 }
 
 
 void OOrinocoMonitoringInterface::setEnabled( bool b )
 {
     if ( b )
     {
         setChannel( 1 );
     }
     else
     {
         _if->setPrivate( "monitor", 2, 0, 0 );
     }
 }
 
 
 QString OOrinocoMonitoringInterface::name() const
 {
     return "orinoco";
 }
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index e362883..675818e 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -4,128 +4,133 @@
                              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/opcap.h>
 
 /* QT */
 
 #include <qapplication.h> // don't use oapplication here (will decrease reusability in other projects)
 #include <qsocketnotifier.h>
 #include <qobjectlist.h>
 
 /*======================================================================================
  * OPacket
  *======================================================================================*/
 
 OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char* data, QObject* parent )
         :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 );
 
     switch ( datalink )
     {
         case DLT_EN10MB:
             qDebug( "OPacket::OPacket(): Received Packet. Datalink = ETHERNET" );
             new OEthernetPacket( _end, (const struct ether_header*) data, this );
             break;
 
         case DLT_IEEE802_11:
             qDebug( "OPacket::OPacket(): Received Packet. Datalink = IEEE802.11" );
             new OWaveLanPacket( _end, (const struct ieee_802_11_header*) data, this );
             break;
 
+        case DLT_PRISM_HEADER:
+            qDebug( "OPacket::OPacket(): Received Packet. Datalink = PRISM_HEADER" );
+            new OPrismHeaderPacket( _end, (const struct prism_hdr*) (unsigned char*) data, this );
+            break;
+
         default:
             qWarning( "OPacket::OPacket(): Received Packet over unsupported datalink '%s'!", datalink );
     }
 }
 
 
 OPacket::~OPacket()
 {
 }
 
 
 timevalstruct OPacket::timeval() const
 {
     return _hdr.ts;
 }
 
 
 int OPacket::caplen() const
 {
     return _hdr.caplen;
 }
 
 
 void OPacket::updateStats( QMap<QString,int>& stats, QObjectList* l )
 {
     if (!l) return;
     QObject* o = l->first();
     while ( o )
     {
         stats[o->name()]++;
         updateStats( stats, const_cast<QObjectList*>( o->children() ) );
         o = l->next();
     }
 }
 
 
 QString OPacket::dump( int bpl ) const
 {
     static int index = 0;
     index++;
     int len = _hdr.caplen;
     QString str;
     str.sprintf( "\n<----- Packet #%04d Len = 0x%X (%d) ----->\n\n", index, len, len );
     str.append( "0000: " );
     QString tmp;
     QString bytes;
     QString chars;
 
     for ( int i = 0; i < len; ++i )
     {
         tmp.sprintf( "%02X ", _data[i] ); bytes.append( tmp );
         if ( (_data[i] > 31) && (_data[i]<128) ) chars.append( _data[i] );
         else chars.append( '.' );
 
         if ( !((i+1) % bpl) )
         {
             str.append( bytes );
             str.append( ' ' );
             str.append( chars );
             str.append( '\n' );
             tmp.sprintf( "%04X: ", i+1 ); str.append( tmp );
             bytes = "";
             chars = "";
         }
@@ -255,128 +260,154 @@ int OIPPacket::len() const
 int OIPPacket::id() const
 {
     return EXTRACT_16BITS( &_iphdr->id );
 }
 
 
 int OIPPacket::offset() const
 {
     return EXTRACT_16BITS( &_iphdr->frag_off );
 }
 
 
 int OIPPacket::ttl() const
 {
     return _iphdr->ttl;
 }
 
 
 int OIPPacket::protocol() const
 {
     return _iphdr->protocol;
 }
 
 
 int OIPPacket::checksum() const
 {
     return EXTRACT_16BITS( &_iphdr->check );
 }
 
 /*======================================================================================
  * OUDPPacket
  *======================================================================================*/
 
 
 OUDPPacket::OUDPPacket( const unsigned char* end, const struct udphdr* data, QObject* parent )
            :QObject( parent, "UDP" ), _udphdr( data )
 
 {
     qDebug( "OUDPPacket::OUDPPacket(): decoding UDP header..." );
 }
 
 OUDPPacket::~OUDPPacket()
 {
 }
 
 
 /*======================================================================================
  * OTCPPacket
  *======================================================================================*/
 
 
 OTCPPacket::OTCPPacket( const unsigned char* end, const struct tcphdr* data, QObject* parent )
            :QObject( parent, "TCP" ), _tcphdr( data )
 
 {
     qDebug( "OTCPPacket::OTCPPacket(): decoding TCP header..." );
 }
 
 OTCPPacket::~OTCPPacket()
 {
 }
 
 
 /*======================================================================================
+ * OPrismHeaderPacket
+ *======================================================================================*/
+
+
+OPrismHeaderPacket::OPrismHeaderPacket( const unsigned char* end, const struct prism_hdr* data, QObject* parent )
+                :QObject( parent, "Prism" ), _header( data )
+
+{
+    qDebug( "OPrismHeaderPacket::OPrismHeaderPacket(): decoding PRISM header..." );
+
+    qDebug( "Signal Strength = %d", data->signal.data );
+
+    new OWaveLanPacket( end, (const struct ieee_802_11_header*) (data+1), this );
+}
+
+OPrismHeaderPacket::~OPrismHeaderPacket()
+{
+}
+
+
+unsigned int OPrismHeaderPacket::signalStrength() const
+{
+    return _header->signal.data;
+}
+
+/*======================================================================================
  * OWaveLanPacket
  *======================================================================================*/
 
 
 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..." );
     qDebug( "type: %0X", type() );
     qDebug( "subType: %0X", subType() );
     qDebug( "duration: %d", duration() );
     qDebug( "powermanagement: %d", usesPowerManagement() );
     qDebug( "payload is encrypted: %s", usesWep() ? "yes" : "no" );
     qDebug( "MAC1: %s", (const char*) macAddress1().toString() );
     qDebug( "MAC2: %s", (const char*) macAddress2().toString() );
     qDebug( "MAC3: %s", (const char*) macAddress3().toString() );
     qDebug( "MAC4: %s", (const char*) macAddress4().toString() );
 
     switch ( type() )
     {
         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_control_header*) data, this ); break;
         default: qDebug( "OWaveLanPacket::OWaveLanPacket(): Warning: Unknown major type '%d'!", type() );
     }
 }
 
 OWaveLanPacket::~OWaveLanPacket()
 {
 }
 
 
 int OWaveLanPacket::duration() const
 {
     return _wlanhdr->duration;
 }
 
 
 OMacAddress OWaveLanPacket::macAddress1() const
 {
     return OMacAddress( _wlanhdr->mac1 );
 }
 
 
 OMacAddress OWaveLanPacket::macAddress2() const
 {
     return OMacAddress( _wlanhdr->mac2 );
 }
 
 
 OMacAddress OWaveLanPacket::macAddress3() const
 {
     return OMacAddress( _wlanhdr->mac3 );
 }
 
 
 OMacAddress OWaveLanPacket::macAddress4() const
 {
     return OMacAddress( _wlanhdr->mac4 );
 }
 
 
 int OWaveLanPacket::subType() const
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h
index fe88e68..83f7115 100644
--- a/libopie2/opienet/opcap.h
+++ b/libopie2/opienet/opcap.h
@@ -94,128 +94,147 @@ class QSocketNotifier;
  * the header must be inspected before attempting to decode the payload. Hence, the
  * encapsulation level varies and can't be deduced without actually looking into the packets.
  *
  * For actually working with captured frames, it's useful to identify the packets via names and
  * insert them into a parent/child - relationship based on the encapsulation. This is why
  * all packet classes derive from QObject. The amount of overhead caused by the QObject is
  * not a problem in this case, because we're talking about a theoratical maximum of about
  * 10 packets per captured frame. We need to stuff them into a searchable list anyway and the
  * QObject also cares about destroying the sub-, (child-) packets.
  *
  * This enables us to perform a simple look for packets of a certain type:
  * @code
  * OPacketCapturer* pcap = new OPacketCapturer();
  * pcap->open( "eth0" );
  * OPacket* p = pcap->next();
  * OIPPacket* ip = (OIPPacket*) p->child( "IP" ); // returns 0, if no such child exists
  * odebug << "got ip packet from " << ip->fromIPAddress().toString() << " to " << ip->toIPAddress().toString() << oendl;
  *
  */
 
 class OPacket : public QObject
 {
   Q_OBJECT
 
   public:
     OPacket( int datalink, packetheaderstruct, const unsigned char*, QObject* parent );
     virtual ~OPacket();
 
     timevalstruct timeval() const;
 
     int caplen() const;
     int len() const;
     QString dump( int = 32 ) const;
 
     void updateStats( QMap<QString,int>&, QObjectList* );
 
   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
  *======================================================================================*/
 
 class OEthernetPacket : public QObject
 {
   Q_OBJECT
 
   public:
     OEthernetPacket( const unsigned char*, const struct ether_header*, QObject* parent = 0 );
     virtual ~OEthernetPacket();
 
     OMacAddress sourceAddress() const;
     OMacAddress destinationAddress() const;
     int type() const;
 
   private:
     const struct ether_header* _ether;
 };
 
 
 /*======================================================================================
+ * OPrismHeaderPacket - DLT_PRISM_HEADER frame
+ *======================================================================================*/
+
+class OPrismHeaderPacket : public QObject
+{
+  Q_OBJECT
+
+  public:
+    OPrismHeaderPacket( const unsigned char*, const struct prism_hdr*, QObject* parent = 0 );
+    virtual ~OPrismHeaderPacket();
+
+    unsigned int signalStrength() const;
+
+  private:
+    const struct prism_hdr* _header;
+};
+
+
+/*======================================================================================
  * OWaveLanPacket - DLT_IEEE802_11 frame
  *======================================================================================*/
 
 class OWaveLanPacket : public QObject
 {
   Q_OBJECT
 
   public:
     OWaveLanPacket( const unsigned char*, const struct ieee_802_11_header*, QObject* parent = 0 );
     virtual ~OWaveLanPacket();
 
     int duration() const;
     bool fromDS() const;
     bool toDS() const;
     virtual OMacAddress macAddress1() const;
     virtual OMacAddress macAddress2() const;
     virtual OMacAddress macAddress3() const;
     virtual OMacAddress macAddress4() const;
     bool usesPowerManagement() const;
     int type() const;
     int subType() const;
     int version() const;
     bool usesWep() const;
 
   private:
     const struct ieee_802_11_header* _wlanhdr;
 };
 
 
 /*======================================================================================
  * OWaveLanManagementPacket - type: management (T_MGMT)
  *======================================================================================*/
 
 class OWaveLanManagementPacket : public QObject
 {
   Q_OBJECT
 
   public:
     OWaveLanManagementPacket( const unsigned char*, const struct ieee_802_11_mgmt_header*, OWaveLanPacket* parent = 0 );
     virtual ~OWaveLanManagementPacket();
 
     QString managementType() 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
 {