summaryrefslogtreecommitdiff
path: root/libopie2/opienet/opcap.cpp
Unidiff
Diffstat (limited to 'libopie2/opienet/opcap.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opienet/opcap.cpp40
1 files changed, 36 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
@@ -30,24 +30,25 @@
30 Boston, MA 02111-1307, USA. 30 Boston, MA 02111-1307, USA.
31 31
32*/ 32*/
33 33
34/* OPIE */ 34/* OPIE */
35 35
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 )
48 :QObject( parent, "Generic" ), _hdr( header ), _data( data ) 49 :QObject( parent, "Generic" ), _hdr( header ), _data( data )
49{ 50{
50 //qDebug( "OPacket::OPacket(): (Len %d, CapLen %d)" /*, ctime((const time_t*) header.ts.tv_sec)*/, header.len, header.caplen ); 51 //qDebug( "OPacket::OPacket(): (Len %d, CapLen %d)" /*, ctime((const time_t*) header.ts.tv_sec)*/, header.len, header.caplen );
51 52
52 _end = (unsigned char*) data + header.len; 53 _end = (unsigned char*) data + header.len;
53 //qDebug( "OPacket::data @ %0x, end @ %0x", data, _end ); 54 //qDebug( "OPacket::data @ %0x, end @ %0x", data, _end );
@@ -78,24 +79,37 @@ OPacket::~OPacket()
78timevalstruct OPacket::timeval() const 79timevalstruct OPacket::timeval() const
79{ 80{
80 return _hdr.ts; 81 return _hdr.ts;
81} 82}
82 83
83 84
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;
96 str.sprintf( "\n<----- Packet #%04d Len = 0x%X (%d) ----->\n\n", index, len, len ); 110 str.sprintf( "\n<----- Packet #%04d Len = 0x%X (%d) ----->\n\n", index, len, len );
97 str.append( "0000: " ); 111 str.append( "0000: " );
98 QString tmp; 112 QString tmp;
99 QString bytes; 113 QString bytes;
100 QString chars; 114 QString chars;
101 115
@@ -118,30 +132,30 @@ QString OPacket::dump( int bpl ) const
118 132
119 } 133 }
120 if ( (len % bpl) ) 134 if ( (len % bpl) )
121 { 135 {
122 str.append( bytes.leftJustify( 1 + 3*bpl ) ); 136 str.append( bytes.leftJustify( 1 + 3*bpl ) );
123 str.append( chars ); 137 str.append( chars );
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 )
142 156
143{ 157{
144 158
145 qDebug( "Source = %s", (const char*) sourceAddress().toString() ); 159 qDebug( "Source = %s", (const char*) sourceAddress().toString() );
146 qDebug( "Destination = %s", (const char*) destinationAddress().toString() ); 160 qDebug( "Destination = %s", (const char*) destinationAddress().toString() );
147 161
@@ -763,60 +777,71 @@ bool OPacketCapturer::blocking() const
763void OPacketCapturer::close() 777void OPacketCapturer::close()
764{ 778{
765 if ( _open ) 779 if ( _open )
766 { 780 {
767 if ( _sn ) 781 if ( _sn )
768 { 782 {
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 );
781} 802}
782 803
783 804
784int OPacketCapturer::fileno() const 805int OPacketCapturer::fileno() const
785{ 806{
786 if ( _open ) 807 if ( _open )
787 { 808 {
788 return pcap_fileno( _pch ); 809 return pcap_fileno( _pch );
789 } 810 }
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}
817 842
818 843
819bool OPacketCapturer::open( const QString& name ) 844bool OPacketCapturer::open( const QString& name )
820{ 845{
821 if ( _open ) 846 if ( _open )
822 { 847 {
@@ -830,24 +855,25 @@ bool OPacketCapturer::open( const QString& name )
830 } 855 }
831 } 856 }
832 857
833 _name = name; 858 _name = name;
834 859
835 pcap_t* handle = pcap_open_live( const_cast<char*>( (const char*) name ), 1024, 0, 0, &_errbuf[0] ); 860 pcap_t* handle = pcap_open_live( const_cast<char*>( (const char*) name ), 1024, 0, 0, &_errbuf[0] );
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() ) );
848 } 874 }
849 875
850 return true; 876 return true;
851 } 877 }
852 else 878 else
853 { 879 {
@@ -857,19 +883,25 @@ bool OPacketCapturer::open( const QString& name )
857 883
858} 884}
859 885
860 886
861bool OPacketCapturer::isOpen() const 887bool OPacketCapturer::isOpen() const
862{ 888{
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