| -rw-r--r-- | libopie2/opienet/opcap.h | 64 |
1 files changed, 55 insertions, 9 deletions
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h index c9b0624..6c3ac6d 100644 --- a/libopie2/opienet/opcap.h +++ b/libopie2/opienet/opcap.h @@ -2,96 +2,97 @@ This file is part of the Opie Project Copyright (C) 2003 by the Wellenreiter team: Martin J. Muench <mjm@remote-exploit.org> Max Moser <mmo@remote-exploit.org Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> =. .=l. .>+-= _;:, .> :=|. This program is free software; you can .> <`_, > . <= redistribute it and/or modify it under :`=1 )Y*s>-.-- : the terms of the GNU Library General Public .="- .-=="i, .._ License as published by the Free Software - . .-<_> .<> Foundation; either version 2 of the License, ._= =} : or (at your option) any later version. .%`+i> _;_. .i_,=:_. -<s. This program is distributed in the hope that + . -:. = it will be useful, but WITHOUT ANY WARRANTY; : .. .:, . . . without even the implied warranty of =_ + =;=|` MERCHANTABILITY or FITNESS FOR A _.=:. : :=>`: PARTICULAR PURPOSE. See the GNU ..}^=.= = ; Library General Public License for more ++= -. .` .: details. : = ...= . :.=- -. .:....=;==+<; You should have received a copy of the GNU -_. . . )=. = Library General Public License along with -- :-=` this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef OPCAP_H #define OPCAP_H /* LINUX */ 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> /* QT */ #include <qevent.h> +#include <qfile.h> #include <qhostaddress.h> #include <qobject.h> #include <qstring.h> #include <qmap.h> /* OPIE */ #include <opie2/onetutils.h> #include "802_11_user.h" /* TYPEDEFS */ typedef struct timeval timevalstruct; typedef struct pcap_pkthdr packetheaderstruct; /* FORWARDS */ class OPacketCapturer; class QSocketNotifier; /*====================================================================================== * OPacket - A frame on the wire *======================================================================================*/ class OPacket : public QObject { Q_OBJECT 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; void updateStats( QMap<QString,int>&, QObjectList* ); private: const packetheaderstruct _hdr; // pcap packet header const unsigned char* _data; // pcap packet data const unsigned char* _end; // end of pcap packet data }; /*====================================================================================== * OEthernetPacket - DLT_EN10MB frame *======================================================================================*/ class OEthernetPacket : public QObject @@ -375,85 +376,130 @@ class OIPPacket : public QObject private: const struct iphdr* _iphdr; }; /*====================================================================================== * OUDPPacket *======================================================================================*/ class OUDPPacket : public QObject { Q_OBJECT public: OUDPPacket( const unsigned char*, const struct udphdr*, QObject* parent = 0 ); virtual ~OUDPPacket(); int fromPort() const; int toPort() const; private: const struct udphdr* _udphdr; }; /*====================================================================================== * OTCPPacket *======================================================================================*/ class OTCPPacket : public QObject { Q_OBJECT public: OTCPPacket( const unsigned char*, const struct tcphdr*, QObject* parent = 0 ); virtual ~OTCPPacket(); int fromPort() const; int toPort() const; private: const struct tcphdr* _tcphdr; }; /*====================================================================================== * OPacketCapturer *======================================================================================*/ +/** + * @brief A class based wrapper for network packet capturing. + * + * This class is the base of a high-level interface to the well known packet capturing + * library libpcap. ... + */ class OPacketCapturer : public QObject { Q_OBJECT public: + /** + * Constructor. + */ OPacketCapturer( QObject* parent = 0, const char* name = 0 ); + /** + * Destructor. + */ ~OPacketCapturer(); - + /** + * Setting the packet capturer to use blocking IO calls can be useful when + * not using the socket notifier, e.g. without an application object. + */ void setBlocking( bool ); + /** + * @returns true if the packet capturer uses blocking IO calls. + */ bool blocking() const; - + /** + * Closes the packet capturer. This is automatically done in the destructor. + */ void close(); + /** + * @returns the data link type. + * @see <pcap.h> for possible values. + */ int dataLink() const; + /** + * @returns the filedescriptor of the packet capturer. This is only useful, if + * not using the socket notifier, e.g. without an application object. + */ int fileno() const; + /** + * @returns the next @ref OPacket from the packet capturer. + * @note If blocking mode is true then this call might block. + */ OPacket* next(); - bool open( const QString& name ); + /** + * Open the packet capturer to capture packets in live-mode from @a interface. + */ + bool open( const QString& interface ); + /** + * Open the packet capturer to capture packets in offline-mode from @a file. + */ + bool open( const QFile& file ); + /** + * @returns true if the packet capturer is open + */ bool isOpen() const; const QMap<QString,int>& statistics() const; signals: + /** + * This signal is emitted, when a packet has been received. + */ void receivedPacket( OPacket* ); protected slots: void readyToReceive(); protected: - QString _name; // devicename - bool _open; // check this before doing pcap calls - pcap_t* _pch; // pcap library handle - QSocketNotifier* _sn; // socket notifier for main loop - mutable char _errbuf[PCAP_ERRBUF_SIZE]; - QMap<QString, int> _stats; // statistics; + QString _name; // devicename + bool _open; // check this before doing pcap calls + pcap_t* _pch; // pcap library handle + QSocketNotifier* _sn; // socket notifier for main loop + mutable char _errbuf[PCAP_ERRBUF_SIZE]; // holds error strings from libpcap + QMap<QString, int> _stats; // statistics; }; #endif // OPCAP_H |