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path: root/libopie2/opienet/opcap.cpp
authormickeyl <mickeyl>2003-10-10 00:15:28 (UTC)
committer mickeyl <mickeyl>2003-10-10 00:15:28 (UTC)
commitc1a897e63513c9647666970794c1684b2439501e (patch) (side-by-side diff)
tree6787f5b1731238c7010937dca220e97f116f19b7 /libopie2/opienet/opcap.cpp
parent802c9ab6b89fd10f709aa012e8ff075e9b4a5d7f (diff)
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Question: What's wrong in select(1, [], NULL, NULL, {100, 0} = 0 (timeout) ?
Answer: It would help to give select the correct filedescriptor... /me hugs strace
Diffstat (limited to 'libopie2/opienet/opcap.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opienet/opcap.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index 38ca1a1..6331b2d 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -1018,257 +1018,257 @@ OWaveLanControlPacket::OWaveLanControlPacket( const unsigned char* end, const st
{
qDebug( "OWaveLanControlPacket::OWaveLanDataControl(): decoding frame..." );
//TODO: Implement this
}
OWaveLanControlPacket::~OWaveLanControlPacket()
{
}
/*======================================================================================
* OPacketCapturer
*======================================================================================*/
OPacketCapturer::OPacketCapturer( QObject* parent, const char* name )
:QObject( parent, name ), _name( QString::null ), _open( false ),
_pch( 0 ), _pcd( 0 ), _sn( 0 )
{
}
OPacketCapturer::~OPacketCapturer()
{
if ( _open )
{
qDebug( "OPacketCapturer::~OPacketCapturer(): pcap still open, autoclosing." );
close();
}
}
void OPacketCapturer::setBlocking( bool b )
{
if ( pcap_setnonblock( _pch, 1-b, _errbuf ) != -1 )
{
qDebug( "OPacketCapturer::setBlocking(): blocking mode changed successfully." );
}
else
{
qDebug( "OPacketCapturer::setBlocking(): can't change blocking mode: %s", _errbuf );
}
}
bool OPacketCapturer::blocking() const
{
int b = pcap_getnonblock( _pch, _errbuf );
if ( b == -1 )
{
qDebug( "OPacketCapturer::blocking(): can't get blocking mode: %s", _errbuf );
return -1;
}
return !b;
}
void OPacketCapturer::closeDumpFile()
{
if ( _pcd )
{
pcap_dump_close( _pcd );
_pcd = 0;
}
pcap_close( _pch );
}
void OPacketCapturer::close()
{
if ( _open )
{
if ( _sn )
{
_sn->disconnect( SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
delete _sn;
}
closeDumpFile();
_open = false;
}
qDebug( "OPacketCapturer::close() --- dumping capturing statistics..." );
qDebug( "--------------------------------------------------" );
for( QMap<QString,int>::Iterator it = _stats.begin(); it != _stats.end(); ++it )
qDebug( "%s : %d", (const char*) it.key(), it.data() );
qDebug( "--------------------------------------------------" );
}
int OPacketCapturer::dataLink() const
{
return pcap_datalink( _pch );
}
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
{
if ( _open )
{
return pcap_fileno( _pch );
}
else
{
return -1;
}
}
OPacket* OPacketCapturer::next( int time )
{
fd_set fds;
struct timeval tv;
FD_ZERO( &fds );
FD_SET( pcap_fileno( _pch ), &fds );
tv.tv_sec = time / 1000;
tv.tv_usec = time % 1000;
- int retval = select( 1, &fds, NULL, NULL, &tv);
+ int retval = select( pcap_fileno( _pch )+1, &fds, NULL, NULL, &tv);
if ( retval > 0 ) // clear to read!
return next();
else
return 0;
}
OPacket* OPacketCapturer::next()
{
packetheaderstruct header;
qDebug( "==> OPacketCapturer::next()" );
const unsigned char* pdata = pcap_next( _pch, &header );
qDebug( "<== OPacketCapturer::next()" );
if ( pdata && 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() ) );
#ifndef NODEBUG
p->dumpStructure( const_cast<QObjectList*>( p->children() ) );
#endif
return p;
}
else
{
qWarning( "OPacketCapturer::next() - no packet received!" );
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;
// open libpcap
pcap_t* handle = pcap_open_live( const_cast<char*>( (const char*) name ), 1024, 0, 0, &_errbuf[0] );
if ( !handle )
{
qWarning( "OPacketCapturer::open(): can't open libpcap with '%s': %s", (const char*) name, _errbuf );
return false;
}
qDebug( "OPacketCapturer::open(): libpcap [%s] opened successfully.", (const char*) name );
_pch = handle;
_open = true;
_stats.clear();
// in case we have an application object, create a socket notifier
if ( qApp ) //TODO: I don't like this here...
{
_sn = new QSocketNotifier( fileno(), QSocketNotifier::Read );
connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
}
return true;
}
bool OPacketCapturer::openDumpFile( const QString& filename )
{
pcap_dumper_t* dump = pcap_dump_open( _pch, const_cast<char*>( (const char*) filename ) );
if ( !dump )
{
qWarning( "OPacketCapturer::open(): can't open dump with '%s': %s", (const char*) filename, _errbuf );
return false;
}
qDebug( "OPacketCapturer::open(): dump [%s] opened successfully.", (const char*) filename );
_pcd = dump;
return true;
}
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;
}