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-rw-r--r--libopie2/opienet/opcap.cpp40
-rw-r--r--libopie2/opienet/opcap.h7
2 files changed, 43 insertions, 4 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index 5c464cf..6a3dc26 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -36,12 +36,13 @@
36#include <opie2/opcap.h> 36#include <opie2/opcap.h>
37 37
38/* QT */ 38/* QT */
39 39
40#include <qapplication.h> // don't use oapplication here (will decrease reusability in other projects) 40#include <qapplication.h> // don't use oapplication here (will decrease reusability in other projects)
41#include <qsocketnotifier.h> 41#include <qsocketnotifier.h>
42#include <qobjectlist.h>
42 43
43/*====================================================================================== 44/*======================================================================================
44 * OPacket 45 * OPacket
45 *======================================================================================*/ 46 *======================================================================================*/
46 47
47OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char* data, QObject* parent ) 48OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char* data, QObject* parent )
@@ -84,12 +85,25 @@ timevalstruct OPacket::timeval() const
84int OPacket::caplen() const 85int OPacket::caplen() const
85{ 86{
86 return _hdr.caplen; 87 return _hdr.caplen;
87} 88}
88 89
89 90
91void OPacket::updateStats( QMap<QString,int>& stats, QObjectList* l )
92{
93 if (!l) return;
94 QObject* o = l->first();
95 while ( o )
96 {
97 stats[o->name()]++;
98 updateStats( stats, const_cast<QObjectList*>( o->children() ) );
99 o = l->next();
100 }
101}
102
103
90QString OPacket::dump( int bpl ) const 104QString OPacket::dump( int bpl ) const
91{ 105{
92 static int index = 0; 106 static int index = 0;
93 index++; 107 index++;
94 int len = _hdr.caplen; 108 int len = _hdr.caplen;
95 QString str; 109 QString str;
@@ -124,18 +138,18 @@ QString OPacket::dump( int bpl ) const
124 } 138 }
125 str.append( '\n' ); 139 str.append( '\n' );
126 return str; 140 return str;
127} 141}
128 142
129 143
130
131int OPacket::len() const 144int OPacket::len() const
132{ 145{
133 return _hdr.len; 146 return _hdr.len;
134} 147}
135 148
149
136/*====================================================================================== 150/*======================================================================================
137 * OEthernetPacket 151 * OEthernetPacket
138 *======================================================================================*/ 152 *======================================================================================*/
139 153
140OEthernetPacket::OEthernetPacket( const unsigned char* end, const struct ether_header* data, QObject* parent ) 154OEthernetPacket::OEthernetPacket( const unsigned char* end, const struct ether_header* data, QObject* parent )
141 :QObject( parent, "Ethernet" ), _ether( data ) 155 :QObject( parent, "Ethernet" ), _ether( data )
@@ -769,12 +783,19 @@ void OPacketCapturer::close()
769 _sn->disconnect( SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) ); 783 _sn->disconnect( SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
770 delete _sn; 784 delete _sn;
771 } 785 }
772 pcap_close( _pch ); 786 pcap_close( _pch );
773 _open = false; 787 _open = false;
774 } 788 }
789
790 qDebug( "OPacketCapturer::close() --- dumping capturing statistics..." );
791 qDebug( "--------------------------------------------------" );
792 for( QMap<QString,int>::Iterator it = _stats.begin(); it != _stats.end(); ++it )
793 qDebug( "%s : %d", (const char*) it.key(), it.data() );
794 qDebug( "--------------------------------------------------" );
795
775} 796}
776 797
777 798
778int OPacketCapturer::dataLink() const 799int OPacketCapturer::dataLink() const
779{ 800{
780 return pcap_datalink( _pch ); 801 return pcap_datalink( _pch );
@@ -790,27 +811,31 @@ int OPacketCapturer::fileno() const
790 else 811 else
791 { 812 {
792 return -1; 813 return -1;
793 } 814 }
794} 815}
795 816
796
797OPacket* OPacketCapturer::next() 817OPacket* OPacketCapturer::next()
798{ 818{
799 packetheaderstruct header; 819 packetheaderstruct header;
800 qDebug( "==> OPacketCapturer::next()" ); 820 qDebug( "==> OPacketCapturer::next()" );
801 const unsigned char* pdata = pcap_next( _pch, &header ); 821 const unsigned char* pdata = pcap_next( _pch, &header );
802 qDebug( "<== OPacketCapturer::next()" ); 822 qDebug( "<== OPacketCapturer::next()" );
803 823
804 if ( header.len ) 824 if ( header.len )
805 { 825 {
806 return new OPacket( dataLink(), header, pdata, 0 ); 826 OPacket* p = new OPacket( dataLink(), header, pdata, 0 );
807 // packets shouldn't be inserted in the QObject child-parent hierarchy, 827 // packets shouldn't be inserted in the QObject child-parent hierarchy,
808 // because due to memory constraints they will be deleted as soon 828 // because due to memory constraints they will be deleted as soon
809 // as possible - that is right after they have been processed 829 // as possible - that is right after they have been processed
810 // by emit() [ see below ] 830 // by emit() [ see below ]
831
832 //TODO: make gathering statistics optional, because it takes time
833 p->updateStats( _stats, const_cast<QObjectList*>( p->children() ) );
834
835 return p;
811 } 836 }
812 else 837 else
813 { 838 {
814 return 0; 839 return 0;
815 } 840 }
816} 841}
@@ -836,12 +861,13 @@ bool OPacketCapturer::open( const QString& name )
836 861
837 if ( handle ) 862 if ( handle )
838 { 863 {
839 qDebug( "OPacketCapturer::open(): libpcap opened successfully." ); 864 qDebug( "OPacketCapturer::open(): libpcap opened successfully." );
840 _pch = handle; 865 _pch = handle;
841 _open = true; 866 _open = true;
867 _stats.clear();
842 868
843 // in case we have an application object, create a socket notifier 869 // in case we have an application object, create a socket notifier
844 if ( qApp ) 870 if ( qApp )
845 { 871 {
846 _sn = new QSocketNotifier( fileno(), QSocketNotifier::Read ); 872 _sn = new QSocketNotifier( fileno(), QSocketNotifier::Read );
847 connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) ); 873 connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
@@ -863,13 +889,19 @@ bool OPacketCapturer::isOpen() const
863 return _open; 889 return _open;
864} 890}
865 891
866 892
867void OPacketCapturer::readyToReceive() 893void OPacketCapturer::readyToReceive()
868{ 894{
869 qDebug( "OPacketCapturer::readyToReceive(): about to emit 'receivePacket(...)'" ); 895 qDebug( "OPacketCapturer::readyToReceive(): about to emit 'receivePacket(p)'" );
870 OPacket* p = next(); 896 OPacket* p = next();
871 emit receivedPacket( p ); 897 emit receivedPacket( p );
872 // emit is synchronous - packet has been dealt with, now it's safe to delete 898 // emit is synchronous - packet has been dealt with, now it's safe to delete
873 delete p; 899 delete p;
874} 900}
875 901
902
903const QMap<QString,int>& OPacketCapturer::statistics() const
904{
905 return _stats;
906}
907
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h
index ddef278..c9b0624 100644
--- a/libopie2/opienet/opcap.h
+++ b/libopie2/opienet/opcap.h
@@ -43,15 +43,17 @@ extern "C" // work around a bpf/pcap conflict in recent headers
43#include <netinet/ip.h> 43#include <netinet/ip.h>
44#include <netinet/udp.h> 44#include <netinet/udp.h>
45#include <netinet/tcp.h> 45#include <netinet/tcp.h>
46#include <time.h> 46#include <time.h>
47 47
48/* QT */ 48/* QT */
49#include <qevent.h>
49#include <qhostaddress.h> 50#include <qhostaddress.h>
50#include <qobject.h> 51#include <qobject.h>
51#include <qstring.h> 52#include <qstring.h>
53#include <qmap.h>
52 54
53/* OPIE */ 55/* OPIE */
54#include <opie2/onetutils.h> 56#include <opie2/onetutils.h>
55#include "802_11_user.h" 57#include "802_11_user.h"
56 58
57/* TYPEDEFS */ 59/* TYPEDEFS */
@@ -77,12 +79,14 @@ class OPacket : public QObject
77 timevalstruct timeval() const; 79 timevalstruct timeval() const;
78 80
79 int caplen() const; 81 int caplen() const;
80 int len() const; 82 int len() const;
81 QString dump( int = 32 ) const; 83 QString dump( int = 32 ) const;
82 84
85 void updateStats( QMap<QString,int>&, QObjectList* );
86
83 private: 87 private:
84 const packetheaderstruct _hdr; // pcap packet header 88 const packetheaderstruct _hdr; // pcap packet header
85 const unsigned char* _data; // pcap packet data 89 const unsigned char* _data; // pcap packet data
86 const unsigned char* _end; // end of pcap packet data 90 const unsigned char* _end; // end of pcap packet data
87}; 91};
88 92
@@ -431,22 +435,25 @@ class OPacketCapturer : public QObject
431 int dataLink() const; 435 int dataLink() const;
432 int fileno() const; 436 int fileno() const;
433 OPacket* next(); 437 OPacket* next();
434 bool open( const QString& name ); 438 bool open( const QString& name );
435 bool isOpen() const; 439 bool isOpen() const;
436 440
441 const QMap<QString,int>& statistics() const;
442
437 signals: 443 signals:
438 void receivedPacket( OPacket* ); 444 void receivedPacket( OPacket* );
439 445
440 protected slots: 446 protected slots:
441 void readyToReceive(); 447 void readyToReceive();
442 448
443 protected: 449 protected:
444 QString _name; // devicename 450 QString _name; // devicename
445 bool _open; // check this before doing pcap calls 451 bool _open; // check this before doing pcap calls
446 pcap_t* _pch; // pcap library handle 452 pcap_t* _pch; // pcap library handle
447 QSocketNotifier* _sn; // socket notifier for main loop 453 QSocketNotifier* _sn; // socket notifier for main loop
448 mutable char _errbuf[PCAP_ERRBUF_SIZE]; 454 mutable char _errbuf[PCAP_ERRBUF_SIZE];
455 QMap<QString, int> _stats; // statistics;
449}; 456};
450 457
451#endif // OPCAP_H 458#endif // OPCAP_H
452 459