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
@@ -366,12 +366,26 @@ struct ieee_802_11_mgmt_body {
 //  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 {
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
@@ -648,13 +648,14 @@ void OWirelessNetworkInterface::setMonitorMode( bool b )
 }
 
 
 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];
@@ -930,13 +931,13 @@ 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 )
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
@@ -62,12 +62,17 @@ OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char*
 
         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 );
     }
 }
 
 
@@ -313,12 +318,38 @@ OTCPPacket::OTCPPacket( const unsigned char* end, const struct tcphdr* data, QOb
 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 )
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
@@ -152,12 +152,31 @@ class OEthernetPacket : public QObject
   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