-rw-r--r-- | libopie2/opienet/opcap.cpp | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp index 6a3dc26..30f6208 100644 --- a/libopie2/opienet/opcap.cpp +++ b/libopie2/opienet/opcap.cpp @@ -807,98 +807,142 @@ int OPacketCapturer::fileno() const if ( _open ) { return pcap_fileno( _pch ); } else { return -1; } } OPacket* OPacketCapturer::next() { packetheaderstruct header; qDebug( "==> OPacketCapturer::next()" ); const unsigned char* pdata = pcap_next( _pch, &header ); qDebug( "<== OPacketCapturer::next()" ); if ( header.len ) { OPacket* p = new OPacket( dataLink(), header, pdata, 0 ); // packets shouldn't be inserted in the QObject child-parent hierarchy, // because due to memory constraints they will be deleted as soon // as possible - that is right after they have been processed // by emit() [ see below ] - //TODO: make gathering statistics optional, because it takes time p->updateStats( _stats, const_cast<QObjectList*>( p->children() ) ); return p; } else { return 0; } } bool OPacketCapturer::open( const QString& name ) { if ( _open ) { if ( name == _name ) // ignore opening an already openend device { return true; } else // close the last opened device { close(); } } _name = name; pcap_t* handle = pcap_open_live( const_cast<char*>( (const char*) name ), 1024, 0, 0, &_errbuf[0] ); if ( handle ) { qDebug( "OPacketCapturer::open(): libpcap opened successfully." ); _pch = handle; _open = true; _stats.clear(); // in case we have an application object, create a socket notifier if ( qApp ) { _sn = new QSocketNotifier( fileno(), QSocketNotifier::Read ); connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) ); } return true; } else { - qDebug( "OPacketCapturer::open(): can't open libpcap: %s", _errbuf ); + qDebug( "OPacketCapturer::open(): can't open libpcap with '%s': %s", (const char*) name, _errbuf ); + return false; + } + +} + + +bool OPacketCapturer::open( const QFile& file ) +{ + QString name = file.name(); + + if ( _open ) + { + close(); + if ( name == _name ) // ignore opening an already openend device + { + return true; + } + else // close the last opened device + { + close(); + } + } + + _name = name; + + pcap_t* handle = pcap_open_offline( const_cast<char*>( (const char*) name ), &_errbuf[0] ); + + if ( handle ) + { + qDebug( "OPacketCapturer::open(): libpcap opened successfully." ); + _pch = handle; + _open = true; + + // in case we have an application object, create a socket notifier + if ( qApp ) + { + _sn = new QSocketNotifier( fileno(), QSocketNotifier::Read ); + connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) ); + } + + return true; + } + else + { + qDebug( "OPacketCapturer::open(): can't open libpcap with '%s': %s", (const char*) name, _errbuf ); return false; } } bool OPacketCapturer::isOpen() const { return _open; } void OPacketCapturer::readyToReceive() { qDebug( "OPacketCapturer::readyToReceive(): about to emit 'receivePacket(p)'" ); OPacket* p = next(); emit receivedPacket( p ); // emit is synchronous - packet has been dealt with, now it's safe to delete delete p; } const QMap<QString,int>& OPacketCapturer::statistics() const { |