author | mickeyl <mickeyl> | 2004-03-28 17:32:44 (UTC) |
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committer | mickeyl <mickeyl> | 2004-03-28 17:32:44 (UTC) |
commit | 1c151bedaa6cfcc8f10c7b5aa549de3e6628d271 (patch) (side-by-side diff) | |
tree | 23cb7abf06ff3092e629095546f1171761321716 /libopie2/opienet/opcap.h | |
parent | e2368b92a101437f7ed289d5ae62f7e7e2466344 (diff) | |
download | opie-1c151bedaa6cfcc8f10c7b5aa549de3e6628d271.zip opie-1c151bedaa6cfcc8f10c7b5aa549de3e6628d271.tar.gz opie-1c151bedaa6cfcc8f10c7b5aa549de3e6628d271.tar.bz2 |
add some FIXMEs for later API revisions
-rw-r--r-- | libopie2/opienet/opcap.h | 10 |
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; |