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authormickeyl <mickeyl>2003-05-08 08:16:14 (UTC)
committer mickeyl <mickeyl>2003-05-08 08:16:14 (UTC)
commiteb1dba5550e63ab7b915d55048175e2992ab5447 (patch) (side-by-side diff)
tree52b37945352c56effd58cacac071cba4f410bef2 /libopie2
parent0950f27fa7136eb59f7e259cb4477ca10c89640d (diff)
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decouple dump files from live capture to shift control over 'what' is dumped to applications
Diffstat (limited to 'libopie2') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opienet/opcap.cpp42
-rw-r--r--libopie2/opienet/opcap.h21
2 files changed, 48 insertions, 15 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index bef9182..1de7124 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -865,4 +865,15 @@ bool OPacketCapturer::blocking() const
+void OPacketCapturer::closeDumpFile()
+{
+ if ( _pcd )
+ {
+ pcap_dump_close( _pcd );
+ _pcd = 0;
+ }
+ pcap_close( _pch );
+}
+
+
void OPacketCapturer::close()
{
@@ -874,11 +885,6 @@ void OPacketCapturer::close()
delete _sn;
}
- if ( _pcd )
- {
- pcap_dump_close( _pcd );
- _pcd = 0;
- }
- pcap_close( _pch );
- _open = false;
+ closeDumpFile();
+ _open = false;
}
@@ -898,4 +904,15 @@ int OPacketCapturer::dataLink() const
+void OPacketCapturer::dump( OPacket* p )
+{
+ if ( !_pcd )
+ {
+ qWarning( "OPacketCapturer::dump() - cannot dump without open capture file!" );
+ return;
+ }
+ pcap_dump( (u_char*) _pcd, &p->_hdr, p->_data );
+}
+
+
int OPacketCapturer::fileno() const
{
@@ -916,6 +933,4 @@ OPacket* OPacketCapturer::next()
const unsigned char* pdata = pcap_next( _pch, &header );
qDebug( "<== OPacketCapturer::next()" );
- if ( _pcd )
- pcap_dump( (u_char*) _pcd, &header, pdata );
if ( pdata && header.len )
@@ -939,5 +954,5 @@ OPacket* OPacketCapturer::next()
-bool OPacketCapturer::open( const QString& name, const QString& filename )
+bool OPacketCapturer::open( const QString& name )
{
if ( _open )
@@ -976,5 +991,10 @@ bool OPacketCapturer::open( const QString& name, const QString& filename )
}
- // if requested, open a dump
+ return true;
+}
+
+
+bool OPacketCapturer::openDumpFile( const QString& filename )
+{
pcap_dumper_t* dump = pcap_dump_open( _pch, const_cast<char*>( (const char*) filename ) );
if ( !dump )
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h
index ad5b07c..9119972 100644
--- a/libopie2/opienet/opcap.h
+++ b/libopie2/opienet/opcap.h
@@ -116,4 +116,6 @@ class OPacket : public QObject
Q_OBJECT
+ friend class OPacketCapturer;
+
public:
OPacket( int datalink, packetheaderstruct, const unsigned char*, QObject* parent );
@@ -525,5 +527,5 @@ class OPacketCapturer : public QObject
~OPacketCapturer();
/**
- * Setting the packet capturer to use blocking IO calls can be useful when
+ * Set the packet capturer to use blocking or non-blocking IO. This can be useful when
* not using the socket notifier, e.g. without an application object.
*/
@@ -534,8 +536,12 @@ class OPacketCapturer : public QObject
bool blocking() const;
/**
- * Closes the packet capturer. This is automatically done in the destructor.
+ * Close the packet capturer. This is automatically done in the destructor.
*/
void close();
/**
+ * Close the output capture file.
+ */
+ void closeDumpFile();
+ /**
* @returns the data link type.
* @see <pcap.h> for possible values.
@@ -543,4 +549,8 @@ class OPacketCapturer : public QObject
int dataLink() const;
/**
+ * Dump a packet to the output capture file.
+ */
+ void dump( OPacket* );
+ /**
* @returns the file descriptor of the packet capturer. This is only useful, if
* not using the socket notifier, e.g. without an application object.
@@ -554,7 +564,6 @@ class OPacketCapturer : public QObject
/**
* Open the packet capturer to capture packets in live-mode from @a interface.
- * If a @a filename is given, all captured packets are output to a tcpdump-compatible capture file.
*/
- bool open( const QString& interface, const QString& filename = QString::null );
+ bool open( const QString& interface );
/**
* Open the packet capturer to capture packets in offline-mode from @a file.
@@ -562,4 +571,8 @@ class OPacketCapturer : public QObject
bool open( const QFile& file );
/**
+ * Open a prerecorded tcpdump compatible capture file for use with @ref dump()
+ */
+ bool openDumpFile( const QString& filename );
+ /**
* @returns true if the packet capturer is open
*/