author | mickeyl <mickeyl> | 2004-03-12 13:04:07 (UTC) |
---|---|---|
committer | mickeyl <mickeyl> | 2004-03-12 13:04:07 (UTC) |
commit | d38384a6edb0110117e0297864f813b379d52789 (patch) (unidiff) | |
tree | 82929ccdea4c9e30e39971beea1a9f4a51bc7b57 | |
parent | 36d9d18055dbed7a85ab2979d1e96dfb4017560b (diff) | |
download | opie-d38384a6edb0110117e0297864f813b379d52789.zip opie-d38384a6edb0110117e0297864f813b379d52789.tar.gz opie-d38384a6edb0110117e0297864f813b379d52789.tar.bz2 |
API change: OPacket::dumpStructure() now returns a QString and accepts void
API change: add QTextStream& operator<<( QTextStream& s, const OPacket& p );
-rw-r--r-- | libopie2/opienet/opcap.cpp | 21 | ||||
-rw-r--r-- | libopie2/opienet/opcap.h | 35 |
2 files changed, 32 insertions, 24 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp index 7463320..fdd519c 100644 --- a/libopie2/opienet/opcap.cpp +++ b/libopie2/opienet/opcap.cpp | |||
@@ -89,56 +89,55 @@ timevalstruct OPacket::timeval() const | |||
89 | { | 89 | { |
90 | return _hdr.ts; | 90 | return _hdr.ts; |
91 | } | 91 | } |
92 | 92 | ||
93 | 93 | ||
94 | int OPacket::caplen() const | 94 | int OPacket::caplen() const |
95 | { | 95 | { |
96 | return _hdr.caplen; | 96 | return _hdr.caplen; |
97 | } | 97 | } |
98 | 98 | ||
99 | 99 | ||
100 | void OPacket::updateStats( QMap<QString,int>& stats, QObjectList* l ) | 100 | void OPacket::updateStats( QMap<QString,int>& stats, QObjectList* l ) |
101 | { | 101 | { |
102 | if (!l) return; | 102 | if (!l) return; |
103 | QObject* o = l->first(); | 103 | QObject* o = l->first(); |
104 | while ( o ) | 104 | while ( o ) |
105 | { | 105 | { |
106 | stats[o->name()]++; | 106 | stats[o->name()]++; |
107 | updateStats( stats, const_cast<QObjectList*>( o->children() ) ); | 107 | updateStats( stats, const_cast<QObjectList*>( o->children() ) ); |
108 | o = l->next(); | 108 | o = l->next(); |
109 | } | 109 | } |
110 | } | 110 | } |
111 | 111 | ||
112 | 112 | ||
113 | void OPacket::dumpStructure( QObjectList* l ) | 113 | QString OPacket::dumpStructure() const |
114 | { | 114 | { |
115 | QString packetString( "[ |" + _dumpStructure( l ) + " ]" ); | 115 | return "[ |" + _dumpStructure( const_cast<QObjectList*>( this->children() ) ) + " ]"; |
116 | odebug << "OPacket::dumpStructure: " << packetString << oendl; | ||
117 | } | 116 | } |
118 | 117 | ||
119 | 118 | ||
120 | QString OPacket::_dumpStructure( QObjectList* l ) | 119 | QString OPacket::_dumpStructure( QObjectList* l ) const |
121 | { | 120 | { |
122 | if (!l) return QString::null; | 121 | if (!l) return QString::null; |
123 | QObject* o = l->first(); | 122 | QObject* o = l->first(); |
124 | QString str(" "); | 123 | QString str(" "); |
125 | 124 | ||
126 | while ( o ) | 125 | while ( o ) |
127 | { | 126 | { |
128 | str.append( o->name() ); | 127 | str.append( o->name() ); |
129 | str.append( " |" ); | 128 | str.append( " |" ); |
130 | str += _dumpStructure( const_cast<QObjectList*>( o->children() ) ); | 129 | str += _dumpStructure( const_cast<QObjectList*>( o->children() ) ); |
131 | o = l->next(); | 130 | o = l->next(); |
132 | } | 131 | } |
133 | return str; | 132 | return str; |
134 | } | 133 | } |
135 | 134 | ||
136 | QString OPacket::dump( int bpl ) const | 135 | QString OPacket::dump( int bpl ) const |
137 | { | 136 | { |
138 | static int index = 0; | 137 | static int index = 0; |
139 | index++; | 138 | index++; |
140 | int len = _hdr.caplen; | 139 | int len = _hdr.caplen; |
141 | QString str; | 140 | QString str; |
142 | str.sprintf( "\n<----- Packet #%04d Len = 0x%X (%d) ----->\n\n", index, len, len ); | 141 | str.sprintf( "\n<----- Packet #%04d Len = 0x%X (%d) ----->\n\n", index, len, len ); |
143 | str.append( "0000: " ); | 142 | str.append( "0000: " ); |
144 | QString tmp; | 143 | QString tmp; |
@@ -158,48 +157,54 @@ QString OPacket::dump( int bpl ) const | |||
158 | str.append( chars ); | 157 | str.append( chars ); |
159 | str.append( '\n' ); | 158 | str.append( '\n' ); |
160 | tmp.sprintf( "%04X: ", i+1 ); str.append( tmp ); | 159 | tmp.sprintf( "%04X: ", i+1 ); str.append( tmp ); |
161 | bytes = ""; | 160 | bytes = ""; |
162 | chars = ""; | 161 | chars = ""; |
163 | } | 162 | } |
164 | 163 | ||
165 | } | 164 | } |
166 | if ( (len % bpl) ) | 165 | if ( (len % bpl) ) |
167 | { | 166 | { |
168 | str.append( bytes.leftJustify( 1 + 3*bpl ) ); | 167 | str.append( bytes.leftJustify( 1 + 3*bpl ) ); |
169 | str.append( chars ); | 168 | str.append( chars ); |
170 | } | 169 | } |
171 | str.append( '\n' ); | 170 | str.append( '\n' ); |
172 | return str; | 171 | return str; |
173 | } | 172 | } |
174 | 173 | ||
175 | 174 | ||
176 | int OPacket::len() const | 175 | int OPacket::len() const |
177 | { | 176 | { |
178 | return _hdr.len; | 177 | return _hdr.len; |
179 | } | 178 | } |
180 | 179 | ||
181 | 180 | ||
181 | QTextStream& operator<<( QTextStream& s, const OPacket& p ) | ||
182 | { | ||
183 | s << p.dumpStructure(); | ||
184 | } | ||
185 | |||
186 | |||
182 | /*====================================================================================== | 187 | /*====================================================================================== |
183 | * OEthernetPacket | 188 | * OEthernetPacket |
184 | *======================================================================================*/ | 189 | *======================================================================================*/ |
185 | 190 | ||
186 | OEthernetPacket::OEthernetPacket( const unsigned char* end, const struct ether_header* data, QObject* parent ) | 191 | OEthernetPacket::OEthernetPacket( const unsigned char* end, const struct ether_header* data, QObject* parent ) |
187 | :QObject( parent, "Ethernet" ), _ether( data ) | 192 | :QObject( parent, "Ethernet" ), _ether( data ) |
188 | { | 193 | { |
189 | 194 | ||
190 | odebug << "Source = " << sourceAddress().toString(); | 195 | odebug << "Source = " << sourceAddress().toString(); |
191 | odebug << "Destination = " << destinationAddress().toString(); | 196 | odebug << "Destination = " << destinationAddress().toString(); |
192 | 197 | ||
193 | if ( sourceAddress() == OMacAddress::broadcast ) | 198 | if ( sourceAddress() == OMacAddress::broadcast ) |
194 | odebug << "Source is broadcast address" << oendl; | 199 | odebug << "Source is broadcast address" << oendl; |
195 | if ( destinationAddress() == OMacAddress::broadcast ) | 200 | if ( destinationAddress() == OMacAddress::broadcast ) |
196 | odebug << "Destination is broadcast address" << oendl; | 201 | odebug << "Destination is broadcast address" << oendl; |
197 | 202 | ||
198 | switch ( type() ) | 203 | switch ( type() ) |
199 | { | 204 | { |
200 | case ETHERTYPE_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break; | 205 | case ETHERTYPE_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break; |
201 | case ETHERTYPE_ARP: new OARPPacket( end, (const struct myarphdr*) (data+1), this ); break; | 206 | case ETHERTYPE_ARP: new OARPPacket( end, (const struct myarphdr*) (data+1), this ); break; |
202 | case ETHERTYPE_REVARP: { odebug << "OPacket::OPacket(): Received Ethernet Packet : Type = RARP" << oendl; break; } | 207 | case ETHERTYPE_REVARP: { odebug << "OPacket::OPacket(): Received Ethernet Packet : Type = RARP" << oendl; break; } |
203 | default: odebug << "OPacket::OPacket(): Received Ethernet Packet : Type = UNKNOWN" << oendl; | 208 | default: odebug << "OPacket::OPacket(): Received Ethernet Packet : Type = UNKNOWN" << oendl; |
204 | } | 209 | } |
205 | 210 | ||
@@ -708,49 +713,49 @@ bool OWaveLanPacket::usesPowerManagement() const | |||
708 | 713 | ||
709 | 714 | ||
710 | bool OWaveLanPacket::usesWep() const | 715 | bool OWaveLanPacket::usesWep() const |
711 | { | 716 | { |
712 | return FC_WEP( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) ); | 717 | return FC_WEP( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) ); |
713 | } | 718 | } |
714 | 719 | ||
715 | 720 | ||
716 | /*====================================================================================== | 721 | /*====================================================================================== |
717 | * OWaveLanManagementPacket | 722 | * OWaveLanManagementPacket |
718 | *======================================================================================*/ | 723 | *======================================================================================*/ |
719 | 724 | ||
720 | OWaveLanManagementPacket::OWaveLanManagementPacket( const unsigned char* end, const struct ieee_802_11_mgmt_header* data, OWaveLanPacket* parent ) | 725 | OWaveLanManagementPacket::OWaveLanManagementPacket( const unsigned char* end, const struct ieee_802_11_mgmt_header* data, OWaveLanPacket* parent ) |
721 | :QObject( parent, "802.11 Management" ), _header( data ), | 726 | :QObject( parent, "802.11 Management" ), _header( data ), |
722 | _body( (const struct ieee_802_11_mgmt_body*) (data+1) ) | 727 | _body( (const struct ieee_802_11_mgmt_body*) (data+1) ) |
723 | { | 728 | { |
724 | odebug << "OWaveLanManagementPacket::OWaveLanManagementPacket(): decoding frame..." << oendl; | 729 | odebug << "OWaveLanManagementPacket::OWaveLanManagementPacket(): decoding frame..." << oendl; |
725 | odebug << "Detected subtype is " << managementType() << oendl; | 730 | odebug << "Detected subtype is " << managementType() << oendl; |
726 | 731 | ||
727 | // Grab tagged values. | 732 | // Grab tagged values. |
728 | // Beacons contain a 12 byte long fixed parameters set before the tagged parameters come, | 733 | // Beacons contain a 12 byte long fixed parameters set before the tagged parameters come, |
729 | // Other management frames don't - which is why we have to inspect the subtype here. | 734 | // Other management frames don't - which is why we have to inspect the subtype here. |
730 | 735 | ||
731 | const unsigned char* ptr = managementType() == "Beacon" ? (const unsigned char*) (_body+1) : (const unsigned char*) (_header+1); | 736 | const unsigned char* ptr = managementType() == "Beacon" ? (const unsigned char*) (_body+1) : (const unsigned char*) (_header+1); |
732 | 737 | ||
733 | while (ptr < end) | 738 | while (ptr < end) |
734 | { | 739 | { |
735 | switch ( *ptr ) | 740 | switch ( *ptr ) |
736 | { | 741 | { |
737 | case E_SSID: new OWaveLanManagementSSID( end, (struct ssid_t*) ptr, this ); break; | 742 | case E_SSID: new OWaveLanManagementSSID( end, (struct ssid_t*) ptr, this ); break; |
738 | case E_FH: new OWaveLanManagementFH( end, (struct fh_t*) ptr, this ); break; | 743 | case E_FH: new OWaveLanManagementFH( end, (struct fh_t*) ptr, this ); break; |
739 | case E_DS: new OWaveLanManagementDS( end, (struct ds_t*) ptr, this ); break; | 744 | case E_DS: new OWaveLanManagementDS( end, (struct ds_t*) ptr, this ); break; |
740 | case E_RATES: new OWaveLanManagementRates( end, (struct rates_t*) ptr, this ); break; | 745 | case E_RATES: new OWaveLanManagementRates( end, (struct rates_t*) ptr, this ); break; |
741 | case E_CF: new OWaveLanManagementCF( end, (struct cf_t*) ptr, this ); break; | 746 | case E_CF: new OWaveLanManagementCF( end, (struct cf_t*) ptr, this ); break; |
742 | case E_TIM: new OWaveLanManagementTim( end, (struct tim_t*) ptr, this ); break; | 747 | case E_TIM: new OWaveLanManagementTim( end, (struct tim_t*) ptr, this ); break; |
743 | case E_IBSS: new OWaveLanManagementIBSS( end, (struct ibss_t*) ptr, this ); break; | 748 | case E_IBSS: new OWaveLanManagementIBSS( end, (struct ibss_t*) ptr, this ); break; |
744 | case E_CHALLENGE: new OWaveLanManagementChallenge( end, (struct challenge_t*) ptr, this ); break; | 749 | case E_CHALLENGE: new OWaveLanManagementChallenge( end, (struct challenge_t*) ptr, this ); break; |
745 | } | 750 | } |
746 | ptr+= ( ( struct ssid_t* ) ptr )->length; // skip length of tagged value | 751 | ptr+= ( ( struct ssid_t* ) ptr )->length; // skip length of tagged value |
747 | ptr+= 2; // skip tag ID and length | 752 | ptr+= 2; // skip tag ID and length |
748 | } | 753 | } |
749 | } | 754 | } |
750 | 755 | ||
751 | 756 | ||
752 | OWaveLanManagementPacket::~OWaveLanManagementPacket() | 757 | OWaveLanManagementPacket::~OWaveLanManagementPacket() |
753 | { | 758 | { |
754 | } | 759 | } |
755 | 760 | ||
756 | 761 | ||
@@ -1167,51 +1172,49 @@ OPacket* OPacketCapturer::next( int time ) | |||
1167 | int retval = select( pcap_fileno( _pch )+1, &fds, NULL, NULL, &tv); | 1172 | int retval = select( pcap_fileno( _pch )+1, &fds, NULL, NULL, &tv); |
1168 | if ( retval > 0 ) // clear to read! | 1173 | if ( retval > 0 ) // clear to read! |
1169 | return next(); | 1174 | return next(); |
1170 | else | 1175 | else |
1171 | return 0; | 1176 | return 0; |
1172 | } | 1177 | } |
1173 | 1178 | ||
1174 | 1179 | ||
1175 | OPacket* OPacketCapturer::next() | 1180 | OPacket* OPacketCapturer::next() |
1176 | { | 1181 | { |
1177 | packetheaderstruct header; | 1182 | packetheaderstruct header; |
1178 | odebug << "==> OPacketCapturer::next()" << oendl; | 1183 | odebug << "==> OPacketCapturer::next()" << oendl; |
1179 | const unsigned char* pdata = pcap_next( _pch, &header ); | 1184 | const unsigned char* pdata = pcap_next( _pch, &header ); |
1180 | odebug << "<== OPacketCapturer::next()" << oendl; | 1185 | odebug << "<== OPacketCapturer::next()" << oendl; |
1181 | 1186 | ||
1182 | if ( pdata && header.len ) | 1187 | if ( pdata && header.len ) |
1183 | { | 1188 | { |
1184 | OPacket* p = new OPacket( dataLink(), header, pdata, 0 ); | 1189 | OPacket* p = new OPacket( dataLink(), header, pdata, 0 ); |
1185 | // packets shouldn't be inserted in the QObject child-parent hierarchy, | 1190 | // packets shouldn't be inserted in the QObject child-parent hierarchy, |
1186 | // because due to memory constraints they will be deleted as soon | 1191 | // because due to memory constraints they will be deleted as soon |
1187 | // as possible - that is right after they have been processed | 1192 | // as possible - that is right after they have been processed |
1188 | // by emit() [ see below ] | 1193 | // by emit() [ see below ] |
1189 | //TODO: make gathering statistics optional, because it takes time | 1194 | //TODO: make gathering statistics optional, because it takes time |
1190 | p->updateStats( _stats, const_cast<QObjectList*>( p->children() ) ); | 1195 | p->updateStats( _stats, const_cast<QObjectList*>( p->children() ) ); |
1191 | #ifndef NODEBUG | 1196 | odebug << "OPacket::dumpStructure: " << p->dumpStructure() << oendl; |
1192 | p->dumpStructure( const_cast<QObjectList*>( p->children() ) ); | ||
1193 | #endif | ||
1194 | return p; | 1197 | return p; |
1195 | } | 1198 | } |
1196 | else | 1199 | else |
1197 | { | 1200 | { |
1198 | owarn << "OPacketCapturer::next() - no packet received!" << oendl; | 1201 | owarn << "OPacketCapturer::next() - no packet received!" << oendl; |
1199 | return 0; | 1202 | return 0; |
1200 | } | 1203 | } |
1201 | } | 1204 | } |
1202 | 1205 | ||
1203 | 1206 | ||
1204 | bool OPacketCapturer::open( const QString& name ) | 1207 | bool OPacketCapturer::open( const QString& name ) |
1205 | { | 1208 | { |
1206 | if ( _open ) | 1209 | if ( _open ) |
1207 | { | 1210 | { |
1208 | if ( name == _name ) // ignore opening an already openend device | 1211 | if ( name == _name ) // ignore opening an already openend device |
1209 | { | 1212 | { |
1210 | return true; | 1213 | return true; |
1211 | } | 1214 | } |
1212 | else // close the last opened device | 1215 | else // close the last opened device |
1213 | { | 1216 | { |
1214 | close(); | 1217 | close(); |
1215 | } | 1218 | } |
1216 | } | 1219 | } |
1217 | 1220 | ||
@@ -1317,28 +1320,28 @@ void OPacketCapturer::readyToReceive() | |||
1317 | delete p; | 1320 | delete p; |
1318 | } | 1321 | } |
1319 | 1322 | ||
1320 | 1323 | ||
1321 | const QMap<QString,int>& OPacketCapturer::statistics() const | 1324 | const QMap<QString,int>& OPacketCapturer::statistics() const |
1322 | { | 1325 | { |
1323 | return _stats; | 1326 | return _stats; |
1324 | } | 1327 | } |
1325 | 1328 | ||
1326 | 1329 | ||
1327 | int OPacketCapturer::snapShot() const | 1330 | int OPacketCapturer::snapShot() const |
1328 | { | 1331 | { |
1329 | return pcap_snapshot( _pch ); | 1332 | return pcap_snapshot( _pch ); |
1330 | } | 1333 | } |
1331 | 1334 | ||
1332 | 1335 | ||
1333 | bool OPacketCapturer::swapped() const | 1336 | bool OPacketCapturer::swapped() const |
1334 | { | 1337 | { |
1335 | return pcap_is_swapped( _pch ); | 1338 | return pcap_is_swapped( _pch ); |
1336 | } | 1339 | } |
1337 | 1340 | ||
1338 | 1341 | ||
1339 | QString OPacketCapturer::version() const | 1342 | QString OPacketCapturer::version() const |
1340 | { | 1343 | { |
1341 | return QString().sprintf( "%s.%s", pcap_major_version( _pch ), pcap_minor_version( _pch ) ); | 1344 | return QString().sprintf( "%d.%d", pcap_major_version( _pch ), pcap_minor_version( _pch ) ); |
1342 | } | 1345 | } |
1343 | 1346 | ||
1344 | 1347 | ||
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h index f5dc5c0..b873b49 100644 --- a/libopie2/opienet/opcap.h +++ b/libopie2/opienet/opcap.h | |||
@@ -10,74 +10,76 @@ | |||
10 | .="- .-=="i, .._ License as published by the Free Software | 10 | .="- .-=="i, .._ License as published by the Free Software |
11 | - . .-<_> .<> Foundation; either version 2 of the License, | 11 | - . .-<_> .<> Foundation; either version 2 of the License, |
12 | ._= =} : or (at your option) any later version. | 12 | ._= =} : or (at your option) any later version. |
13 | .%`+i> _;_. | 13 | .%`+i> _;_. |
14 | .i_,=:_. -<s. This program is distributed in the hope that | 14 | .i_,=:_. -<s. This program is distributed in the hope that |
15 | + . -:. = it will be useful, but WITHOUT ANY WARRANTY; | 15 | + . -:. = it will be useful, but WITHOUT ANY WARRANTY; |
16 | : .. .:, . . . without even the implied warranty of | 16 | : .. .:, . . . without even the implied warranty of |
17 | =_ + =;=|` MERCHANTABILITY or FITNESS FOR A | 17 | =_ + =;=|` MERCHANTABILITY or FITNESS FOR A |
18 | _.=:. : :=>`: PARTICULAR PURPOSE. See the GNU | 18 | _.=:. : :=>`: PARTICULAR PURPOSE. See the GNU |
19 | ..}^=.= = ; Library General Public License for more | 19 | ..}^=.= = ; Library General Public License for more |
20 | ++= -. .` .: details. | 20 | ++= -. .` .: details. |
21 | : = ...= . :.=- | 21 | : = ...= . :.=- |
22 | -. .:....=;==+<; You should have received a copy of the GNU | 22 | -. .:....=;==+<; You should have received a copy of the GNU |
23 | -_. . . )=. = Library General Public License along with | 23 | -_. . . )=. = Library General Public License along with |
24 | -- :-=` this library; see the file COPYING.LIB. | 24 | -- :-=` this library; see the file COPYING.LIB. |
25 | If not, write to the Free Software Foundation, | 25 | If not, write to the Free Software Foundation, |
26 | Inc., 59 Temple Place - Suite 330, | 26 | Inc., 59 Temple Place - Suite 330, |
27 | Boston, MA 02111-1307, USA. | 27 | Boston, MA 02111-1307, USA. |
28 | 28 | ||
29 | */ | 29 | */ |
30 | 30 | ||
31 | #ifndef OPCAP_H | 31 | #ifndef OPCAP_H |
32 | #define OPCAP_H | 32 | #define OPCAP_H |
33 | 33 | ||
34 | /* LINUX */ | 34 | /* OPIE */ |
35 | extern "C" // work around a bpf/pcap conflict in recent headers | 35 | #include <opie2/onetutils.h> |
36 | { | ||
37 | #include <pcap.h> | ||
38 | } | ||
39 | #include <netinet/ether.h> | ||
40 | #include <netinet/ip.h> | ||
41 | #include <netinet/udp.h> | ||
42 | #include <netinet/tcp.h> | ||
43 | #include <time.h> | ||
44 | 36 | ||
45 | /* QT */ | 37 | /* QT */ |
46 | #include <qevent.h> | 38 | #include <qevent.h> |
47 | #include <qfile.h> | 39 | #include <qfile.h> |
48 | #include <qhostaddress.h> | 40 | #include <qhostaddress.h> |
49 | #include <qobject.h> | 41 | #include <qobject.h> |
50 | #include <qstring.h> | 42 | #include <qstring.h> |
43 | #include <qtextstream.h> | ||
51 | #include <qmap.h> | 44 | #include <qmap.h> |
52 | 45 | ||
53 | /* OPIE */ | 46 | /* STD */ |
54 | #include <opie2/onetutils.h> | 47 | extern "C" // work around a bpf/pcap conflict in recent headers |
48 | { | ||
49 | #include <pcap.h> | ||
50 | } | ||
51 | #include <netinet/ether.h> | ||
52 | #include <netinet/ip.h> | ||
53 | #include <netinet/udp.h> | ||
54 | #include <netinet/tcp.h> | ||
55 | #include <time.h> | ||
55 | 56 | ||
56 | /* Custom Network Includes */ | 57 | /* Custom Network Includes (must go here, don't reorder!) */ |
57 | #include "802_11_user.h" | 58 | #include "802_11_user.h" |
58 | #include "dhcp.h" | 59 | #include "dhcp.h" |
59 | 60 | ||
61 | |||
60 | /* TYPEDEFS */ | 62 | /* TYPEDEFS */ |
61 | typedef struct timeval timevalstruct; | 63 | typedef struct timeval timevalstruct; |
62 | typedef struct pcap_pkthdr packetheaderstruct; | 64 | typedef struct pcap_pkthdr packetheaderstruct; |
63 | 65 | ||
64 | /* FORWARDS */ | 66 | /* FORWARDS */ |
65 | class OPacketCapturer; | 67 | class OPacketCapturer; |
66 | class QSocketNotifier; | 68 | class QSocketNotifier; |
67 | 69 | ||
68 | /*====================================================================================== | 70 | /*====================================================================================== |
69 | * OPacket - A frame on the wire | 71 | * OPacket - A frame on the wire |
70 | *======================================================================================*/ | 72 | *======================================================================================*/ |
71 | 73 | ||
72 | /** @brief A class representing a data frame on the wire. | 74 | /** @brief A class representing a data frame on the wire. |
73 | * | 75 | * |
74 | * The whole family of the packet classes are used when capturing frames from a network. | 76 | * The whole family of the packet classes are used when capturing frames from a network. |
75 | * Most standard network protocols in use share a common architecture, which mostly is | 77 | * Most standard network protocols in use share a common architecture, which mostly is |
76 | * a packet header and then the packet payload. In layered architectures, each lower layer | 78 | * a packet header and then the packet payload. In layered architectures, each lower layer |
77 | * encapsulates data from its upper layer - that is it | 79 | * encapsulates data from its upper layer - that is it |
78 | * treats the data from its upper layer as payload and prepends an own header to the packet, | 80 | * treats the data from its upper layer as payload and prepends an own header to the packet, |
79 | * which - again - is treated as the payload for the layer below. The figure below is an | 81 | * which - again - is treated as the payload for the layer below. The figure below is an |
80 | * example for how such a data frame is composed out of packets, e.g. when sending a mail. | 82 | * example for how such a data frame is composed out of packets, e.g. when sending a mail. |
81 | * | 83 | * |
82 | * <pre> | 84 | * <pre> |
83 | * | User Data | == Mail Data | 85 | * | User Data | == Mail Data |
@@ -95,72 +97,75 @@ class QSocketNotifier; | |||
95 | * encapsulation level varies and can't be deduced without actually looking into the packets. | 97 | * encapsulation level varies and can't be deduced without actually looking into the packets. |
96 | * | 98 | * |
97 | * For actually working with captured frames, it's useful to identify the packets via names and | 99 | * For actually working with captured frames, it's useful to identify the packets via names and |
98 | * insert them into a parent/child - relationship based on the encapsulation. This is why | 100 | * insert them into a parent/child - relationship based on the encapsulation. This is why |
99 | * all packet classes derive from QObject. The amount of overhead caused by the QObject is | 101 | * all packet classes derive from QObject. The amount of overhead caused by the QObject is |
100 | * not a problem in this case, because we're talking about a theoratical maximum of about | 102 | * not a problem in this case, because we're talking about a theoratical maximum of about |
101 | * 10 packets per captured frame. We need to stuff them into a searchable list anyway and the | 103 | * 10 packets per captured frame. We need to stuff them into a searchable list anyway and the |
102 | * QObject also cares about destroying the sub-, (child-) packets. | 104 | * QObject also cares about destroying the sub-, (child-) packets. |
103 | * | 105 | * |
104 | * This enables us to perform a simple look for packets of a certain type: | 106 | * This enables us to perform a simple look for packets of a certain type: |
105 | * @code | 107 | * @code |
106 | * OPacketCapturer* pcap = new OPacketCapturer(); | 108 | * OPacketCapturer* pcap = new OPacketCapturer(); |
107 | * pcap->open( "eth0" ); | 109 | * pcap->open( "eth0" ); |
108 | * OPacket* p = pcap->next(); | 110 | * OPacket* p = pcap->next(); |
109 | * OIPPacket* ip = (OIPPacket*) p->child( "IP" ); // returns 0, if no such child exists | 111 | * OIPPacket* ip = (OIPPacket*) p->child( "IP" ); // returns 0, if no such child exists |
110 | * odebug << "got ip packet from " << ip->fromIPAddress().toString() << " to " << ip->toIPAddress().toString() << oendl; | 112 | * odebug << "got ip packet from " << ip->fromIPAddress().toString() << " to " << ip->toIPAddress().toString() << oendl; |
111 | * | 113 | * |
112 | */ | 114 | */ |
113 | 115 | ||
114 | class OPacket : public QObject | 116 | class OPacket : public QObject |
115 | { | 117 | { |
116 | Q_OBJECT | 118 | Q_OBJECT |
117 | 119 | ||
118 | friend class OPacketCapturer; | 120 | friend class OPacketCapturer; |
121 | friend QTextStream& operator<<( QTextStream& s, const OPacket& p ); | ||
119 | 122 | ||
120 | public: | 123 | public: |
121 | OPacket( int datalink, packetheaderstruct, const unsigned char*, QObject* parent ); | 124 | OPacket( int datalink, packetheaderstruct, const unsigned char*, QObject* parent ); |
122 | virtual ~OPacket(); | 125 | virtual ~OPacket(); |
123 | 126 | ||
124 | timevalstruct timeval() const; | 127 | timevalstruct timeval() const; |
125 | 128 | ||
126 | int caplen() const; | 129 | int caplen() const; |
127 | int len() const; | 130 | int len() const; |
128 | QString dump( int = 32 ) const; | 131 | QString dump( int = 32 ) const; |
129 | 132 | ||
130 | void updateStats( QMap<QString,int>&, QObjectList* ); | 133 | void updateStats( QMap<QString,int>&, QObjectList* ); |
131 | 134 | ||
132 | private: | 135 | private: |
133 | 136 | ||
134 | void dumpStructure( QObjectList* ); | 137 | QString dumpStructure() const; |
135 | QString _dumpStructure( QObjectList* ); | 138 | QString _dumpStructure( QObjectList* ) const; |
136 | 139 | ||
137 | private: | 140 | private: |
138 | const packetheaderstruct _hdr; // pcap packet header | 141 | const packetheaderstruct _hdr; // pcap packet header |
139 | const unsigned char* _data; // pcap packet data | 142 | const unsigned char* _data; // pcap packet data |
140 | const unsigned char* _end; // end of pcap packet data | 143 | const unsigned char* _end; // end of pcap packet data |
141 | }; | 144 | }; |
142 | 145 | ||
146 | QTextStream& operator<<( QTextStream& s, const OPacket& p ); | ||
147 | |||
143 | /*====================================================================================== | 148 | /*====================================================================================== |
144 | * OEthernetPacket - DLT_EN10MB frame | 149 | * OEthernetPacket - DLT_EN10MB frame |
145 | *======================================================================================*/ | 150 | *======================================================================================*/ |
146 | 151 | ||
147 | class OEthernetPacket : public QObject | 152 | class OEthernetPacket : public QObject |
148 | { | 153 | { |
149 | Q_OBJECT | 154 | Q_OBJECT |
150 | 155 | ||
151 | public: | 156 | public: |
152 | OEthernetPacket( const unsigned char*, const struct ether_header*, QObject* parent = 0 ); | 157 | OEthernetPacket( const unsigned char*, const struct ether_header*, QObject* parent = 0 ); |
153 | virtual ~OEthernetPacket(); | 158 | virtual ~OEthernetPacket(); |
154 | 159 | ||
155 | OMacAddress sourceAddress() const; | 160 | OMacAddress sourceAddress() const; |
156 | OMacAddress destinationAddress() const; | 161 | OMacAddress destinationAddress() const; |
157 | int type() const; | 162 | int type() const; |
158 | 163 | ||
159 | private: | 164 | private: |
160 | const struct ether_header* _ether; | 165 | const struct ether_header* _ether; |
161 | }; | 166 | }; |
162 | 167 | ||
163 | /*====================================================================================== | 168 | /*====================================================================================== |
164 | * OPrismHeaderPacket - DLT_PRISM_HEADER frame | 169 | * OPrismHeaderPacket - DLT_PRISM_HEADER frame |
165 | *======================================================================================*/ | 170 | *======================================================================================*/ |
166 | 171 | ||