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path: root/libopie2/opienet/opcap.h
authormickeyl <mickeyl>2004-03-28 17:32:44 (UTC)
committer mickeyl <mickeyl>2004-03-28 17:32:44 (UTC)
commit1c151bedaa6cfcc8f10c7b5aa549de3e6628d271 (patch) (side-by-side diff)
tree23cb7abf06ff3092e629095546f1171761321716 /libopie2/opienet/opcap.h
parente2368b92a101437f7ed289d5ae62f7e7e2466344 (diff)
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add some FIXMEs for later API revisions
Diffstat (limited to 'libopie2/opienet/opcap.h') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opienet/opcap.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h
index 4ff8495..2dbe030 100644
--- a/libopie2/opienet/opcap.h
+++ b/libopie2/opienet/opcap.h
@@ -37,210 +37,210 @@
/* QT */
#include <qevent.h>
#include <qfile.h>
#include <qhostaddress.h>
#include <qobject.h>
#include <qstring.h>
#include <qtextstream.h>
#include <qmap.h>
/* STD */
extern "C" // work around a bpf/pcap conflict in recent headers
{
#include <pcap.h>
}
#include <netinet/ether.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <netinet/tcp.h>
#include <time.h>
/* Custom Network Includes (must go here, don't reorder!) */
#include "802_11_user.h"
#include "dhcp.h"
/* TYPEDEFS */
typedef struct timeval timevalstruct;
typedef struct pcap_pkthdr packetheaderstruct;
/* FORWARDS */
class QSocketNotifier;
namespace Opie {
namespace Net {
class OPacketCapturer;
/*======================================================================================
* OPacket - A frame on the wire
*======================================================================================*/
/** @brief A class representing a data frame on the wire.
*
* The whole family of the packet classes are used when capturing frames from a network.
* Most standard network protocols in use share a common architecture, which mostly is
* a packet header and then the packet payload. In layered architectures, each lower layer
* encapsulates data from its upper layer - that is it
* treats the data from its upper layer as payload and prepends an own header to the packet,
* which - again - is treated as the payload for the layer below. The figure below is an
* example for how such a data frame is composed out of packets, e.g. when sending a mail.
*
* <pre>
* | User Data | == Mail Data
* | SMTP Header | User Data | == SMTP
* | TCP Header | SMTP Header | User Data | == TCP
* | IP Header | TCP Header | SMTP Header | User Data | == IP
* | MAC Header | IP Header | TCP Header | SMTP Header | User Data | == MAC
*
* </pre>
*
* The example is trimmed for simplicity, because the MAC (Medium Access Control) layer
* also contains a few more levels of encapsulation.
* Since the type of the payload is more or less independent from the encapsulating protocol,
* the header must be inspected before attempting to decode the payload. Hence, the
* encapsulation level varies and can't be deduced without actually looking into the packets.
*
* For actually working with captured frames, it's useful to identify the packets via names and
* insert them into a parent/child - relationship based on the encapsulation. This is why
* all packet classes derive from QObject. The amount of overhead caused by the QObject is
* not a problem in this case, because we're talking about a theoratical maximum of about
* 10 packets per captured frame. We need to stuff them into a searchable list anyway and the
* QObject also cares about destroying the sub-, (child-) packets.
*
* This enables us to perform a simple look for packets of a certain type:
* @code
* OPacketCapturer* pcap = new OPacketCapturer();
* pcap->open( "eth0" );
* OPacket* p = pcap->next();
* OIPPacket* ip = (OIPPacket*) p->child( "IP" ); // returns 0, if no such child exists
* odebug << "got ip packet from " << ip->fromIPAddress().toString() << " to " << ip->toIPAddress().toString() << oendl;
*
*/
class OPacket : public QObject
{
Q_OBJECT
friend class OPacketCapturer;
friend QTextStream& operator<<( QTextStream& s, const OPacket& p );
public:
OPacket( int datalink, packetheaderstruct, const unsigned char*, QObject* parent );
virtual ~OPacket();
timevalstruct timeval() const;
int caplen() const;
int len() const;
- QString dump( int = 32 ) const;
+ QString dump( int = 32 ) const; //FIXME: remove that
- void updateStats( QMap<QString,int>&, QObjectList* );
+ void updateStats( QMap<QString,int>&, QObjectList* ); //FIXME: Revise
- QString dumpStructure() const;
+ QString dumpStructure() const; //FIXME: Revise
private:
- QString _dumpStructure( QObjectList* ) const;
+ QString _dumpStructure( QObjectList* ) const; //FIXME: Revise
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;
Private *d;
};
-QTextStream& operator<<( QTextStream& s, const OPacket& p );
+QTextStream& operator<<( QTextStream& s, const OPacket& p ); //FIXME: Revise
/*======================================================================================
* OEthernetPacket - DLT_EN10MB frame
*======================================================================================*/
class OEthernetPacket : public QObject
{
Q_OBJECT
public:
OEthernetPacket( const unsigned char*, const struct ether_header*, QObject* parent = 0 );
virtual ~OEthernetPacket();
OMacAddress sourceAddress() const;
OMacAddress destinationAddress() const;
int type() const;
private:
const struct ether_header* _ether;
private:
class Private;
Private *d;
};
/*======================================================================================
* 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;
class Private;
Private *d;
};
/*======================================================================================
* OWaveLanPacket - DLT_IEEE802_11 frame
*======================================================================================*/
class OWaveLanPacket : public QObject
{
Q_OBJECT
public:
OWaveLanPacket( const unsigned char*, const struct ieee_802_11_header*, QObject* parent = 0 );
virtual ~OWaveLanPacket();
int duration() const;
bool fromDS() const;
bool toDS() const;
virtual OMacAddress macAddress1() const;
virtual OMacAddress macAddress2() const;
virtual OMacAddress macAddress3() const;
virtual OMacAddress macAddress4() const;
bool usesPowerManagement() const;
int type() const;
int subType() const;
int version() const;
bool usesWep() const;
private:
const struct ieee_802_11_header* _wlanhdr;
class Private;
Private *d;
};
/*======================================================================================
* OWaveLanManagementPacket - type: management (T_MGMT)
*======================================================================================*/
class OWaveLanManagementPacket : public QObject
{
Q_OBJECT
public:
OWaveLanManagementPacket( const unsigned char*, const struct ieee_802_11_mgmt_header*, OWaveLanPacket* parent = 0 );
virtual ~OWaveLanManagementPacket();
QString managementType() const;
int beaconInterval() const;
int capabilities() const; // generic
bool canESS() const;
bool canIBSS() const;
bool canCFP() const;