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-rw-r--r--libopie2/opienet/opcap.cpp21
-rw-r--r--libopie2/opienet/opcap.h20
2 files changed, 33 insertions, 8 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index 4081d4f..c5df041 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -52,17 +52,17 @@ namespace Net {
/*======================================================================================
* 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 );
+ 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:
odebug << "OPacket::OPacket(): Received Packet. Datalink = ETHERNET" << oendl;
@@ -82,16 +82,17 @@ OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char*
default:
owarn << "OPacket::OPacket(): Received Packet over unsupported datalink, type " << datalink << "!" << oendl;
}
}
OPacket::~OPacket()
{
+ qDebug( "OPacket::~OPacket( %s )", name() );
}
timevalstruct OPacket::timeval() const
{
return _hdr.ts;
}
@@ -1058,31 +1059,43 @@ QString OWaveLanControlPacket::controlType() const
}
/*======================================================================================
* OPacketCapturer
*======================================================================================*/
OPacketCapturer::OPacketCapturer( QObject* parent, const char* name )
- :QObject( parent, name ), _name( QString::null ), _open( false ), _pch( 0 ), _pcd( 0 ), _sn( 0 )
+ :QObject( parent, name ), _name( QString::null ), _open( false ), _pch( 0 ), _pcd( 0 ), _sn( 0 ), _autodelete( true )
{
}
OPacketCapturer::~OPacketCapturer()
{
if ( _open )
{
odebug << "OPacketCapturer::~OPacketCapturer(): pcap still open, autoclosing." << oendl;
close();
}
}
+void OPacketCapturer::setAutoDelete( bool b )
+{
+ _autodelete = b;
+}
+
+
+bool OPacketCapturer::autoDelete() const
+{
+ return _autodelete;
+}
+
+
void OPacketCapturer::setBlocking( bool b )
{
if ( pcap_setnonblock( _pch, 1-b, _errbuf ) != -1 )
{
odebug << "OPacketCapturer::setBlocking(): blocking mode changed successfully." << oendl;
}
else
{
@@ -1316,18 +1329,18 @@ bool OPacketCapturer::isOpen() const
}
void OPacketCapturer::readyToReceive()
{
odebug << "OPacketCapturer::readyToReceive(): about to emit 'receivePacket(p)'" << oendl;
OPacket* p = next();
emit receivedPacket( p );
- // emit is synchronous - packet has been dealt with, now it's safe to delete
- delete p;
+ // emit is synchronous - packet has been dealt with, now it's safe to delete (if enabled)
+ if ( _autodelete ) delete p;
}
const QMap<QString,int>& OPacketCapturer::statistics() const
{
return _stats;
}
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h
index 72a78de..4ff8495 100644
--- a/libopie2/opienet/opcap.h
+++ b/libopie2/opienet/opcap.h
@@ -129,19 +129,18 @@ class OPacket : public QObject
timevalstruct timeval() const;
int caplen() const;
int len() const;
QString dump( int = 32 ) const;
void updateStats( QMap<QString,int>&, QObjectList* );
- private:
-
QString dumpStructure() const;
+ private:
QString _dumpStructure( QObjectList* ) const;
private:
const packetheaderstruct _hdr; // pcap packet header
const unsigned char* _data; // pcap packet data
const unsigned char* _end; // end of pcap packet data
private:
class Private;
@@ -688,16 +687,28 @@ class OPacketCapturer : public QObject
* @returns the libpcap version string used to write the input capture file.
*/
QString version() const;
/**
* @returns the packet statistic database.
* @see QMap
*/
const QMap<QString,int>& statistics() const;
+ /**
+ * Enable or disable the auto-delete option.
+ * If auto-delete is enabled, then the packet capturer will delete a packet right
+ * after it has been emit'ted. This is the default, which is useful if the packet
+ * capturer has the only reference to the packets. If you pass the packet for adding
+ * into a collection or do processing after the SLOT, the auto delete must be disabled.
+ */
+ void setAutoDelete( bool enable );
+ /**
+ * @returns the auto-delete value.
+ */
+ bool autoDelete() const;
signals:
/**
* This signal is emitted, when a packet has been received.
*/
void receivedPacket( Opie::Net::OPacket* );
protected slots:
@@ -706,16 +717,17 @@ class OPacketCapturer : public QObject
protected:
QString _name; // devicename
bool _open; // check this before doing pcap calls
pcap_t* _pch; // pcap library handle
pcap_dumper_t* _pcd; // pcap dumper handle
QSocketNotifier* _sn; // socket notifier for main loop
mutable char _errbuf[PCAP_ERRBUF_SIZE]; // holds error strings from libpcap
QMap<QString, int> _stats; // statistics;
- class Private; // Private Forward declaration
- Private *d; // if we need to add data
+ bool _autodelete; // if we auto delete packets after emit
+ class Private; // Private Forward declaration
+ Private *d; // if we need to add data
};
}
}
#endif // OPCAP_H