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path: root/libopie2/opienet/opcap.cpp
authormickeyl <mickeyl>2003-05-05 22:25:58 (UTC)
committer mickeyl <mickeyl>2003-05-05 22:25:58 (UTC)
commit3f8c29b3cbbb32864694fe9c95b43d1cb777360e (patch) (side-by-side diff)
treedd749f9d27bfb8c9ad02bea8545fecba33555a67 /libopie2/opienet/opcap.cpp
parent3b193b852133a82b5c1708b68a7e460c63629768 (diff)
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fix typos
Diffstat (limited to 'libopie2/opienet/opcap.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opienet/opcap.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index f6d05ea..523be3e 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -1,1057 +1,1057 @@
/*
                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.
*/
/* OPIE */
#include <opie2/opcap.h>
/* QT */
#include <qapplication.h> // don't use oapplication here (will decrease reusability in other projects)
#include <qsocketnotifier.h>
#include <qobjectlist.h>
/*======================================================================================
* OPacket
*======================================================================================*/
OPacket::OPacket( int datalink, packetheaderstruct header, const unsigned char* data, QObject* parent )
:QObject( parent, "Generic" ), _hdr( header ), _data( data )
{
//qDebug( "OPacket::OPacket(): (Len %d, CapLen %d)" /*, ctime((const time_t*) header.ts.tv_sec)*/, header.len, header.caplen );
_end = (unsigned char*) data + header.len;
//qDebug( "OPacket::data @ %0x, end @ %0x", data, _end );
switch ( datalink )
{
case DLT_EN10MB:
qDebug( "OPacket::OPacket(): Received Packet. Datalink = ETHERNET" );
new OEthernetPacket( _end, (const struct ether_header*) data, this );
break;
case DLT_IEEE802_11:
qDebug( "OPacket::OPacket(): Received Packet. Datalink = IEEE802.11" );
new OWaveLanPacket( _end, (const struct ieee_802_11_header*) data, this );
break;
case DLT_PRISM_HEADER:
qDebug( "OPacket::OPacket(): Received Packet. Datalink = PRISM_HEADER" );
new OPrismHeaderPacket( _end, (const struct prism_hdr*) (unsigned char*) data, this );
break;
default:
qWarning( "OPacket::OPacket(): Received Packet over unsupported datalink (type %d)!", datalink );
}
}
OPacket::~OPacket()
{
}
timevalstruct OPacket::timeval() const
{
return _hdr.ts;
}
int OPacket::caplen() const
{
return _hdr.caplen;
}
void OPacket::updateStats( QMap<QString,int>& stats, QObjectList* l )
{
if (!l) return;
QObject* o = l->first();
while ( o )
{
stats[o->name()]++;
updateStats( stats, const_cast<QObjectList*>( o->children() ) );
o = l->next();
}
}
QString OPacket::dump( int bpl ) const
{
static int index = 0;
index++;
int len = _hdr.caplen;
QString str;
str.sprintf( "\n<----- Packet #%04d Len = 0x%X (%d) ----->\n\n", index, len, len );
str.append( "0000: " );
QString tmp;
QString bytes;
QString chars;
for ( int i = 0; i < len; ++i )
{
tmp.sprintf( "%02X ", _data[i] ); bytes.append( tmp );
if ( (_data[i] > 31) && (_data[i]<128) ) chars.append( _data[i] );
else chars.append( '.' );
if ( !((i+1) % bpl) )
{
str.append( bytes );
str.append( ' ' );
str.append( chars );
str.append( '\n' );
tmp.sprintf( "%04X: ", i+1 ); str.append( tmp );
bytes = "";
chars = "";
}
}
if ( (len % bpl) )
{
str.append( bytes.leftJustify( 1 + 3*bpl ) );
str.append( chars );
}
str.append( '\n' );
return str;
}
int OPacket::len() const
{
return _hdr.len;
}
/*======================================================================================
* OEthernetPacket
*======================================================================================*/
OEthernetPacket::OEthernetPacket( const unsigned char* end, const struct ether_header* data, QObject* parent )
:QObject( parent, "Ethernet" ), _ether( data )
{
qDebug( "Source = %s", (const char*) sourceAddress().toString() );
qDebug( "Destination = %s", (const char*) destinationAddress().toString() );
if ( sourceAddress() == OMacAddress::broadcast )
qDebug( "Source is broadcast address" );
if ( destinationAddress() == OMacAddress::broadcast )
qDebug( "Destination is broadcast address" );
switch ( type() )
{
case ETHERTYPE_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break;
case ETHERTYPE_ARP: { qDebug( "OPacket::OPacket(): Received Ethernet Packet : Type = ARP" ); break; }
case ETHERTYPE_REVARP: { qDebug( "OPacket::OPacket(): Received Ethernet Packet : Type = RARP" ); break; }
default: qDebug( "OPacket::OPacket(): Received Ethernet Packet : Type = UNKNOWN" );
}
}
OEthernetPacket::~OEthernetPacket()
{
}
OMacAddress OEthernetPacket::sourceAddress() const
{
return OMacAddress( _ether->ether_shost );
}
OMacAddress OEthernetPacket::destinationAddress() const
{
return OMacAddress( _ether->ether_dhost );
}
int OEthernetPacket::type() const
{
return ntohs( _ether->ether_type );
}
/*======================================================================================
* OIPPacket
*======================================================================================*/
OIPPacket::OIPPacket( const unsigned char* end, const struct iphdr* data, QObject* parent )
:QObject( parent, "IP" ), _iphdr( data )
{
qDebug( "OIPPacket::OIPPacket(): decoding IP header..." );
//qDebug( "FromAddress: %s", (const char*) inet_ntoa( *src ) );
//qDebug( " ToAddress: %s", (const char*) inet_ntoa( *dst ) );
qDebug( "FromAddress: %s", (const char*) fromIPAddress().toString() );
qDebug( " toAddress: %s", (const char*) toIPAddress().toString() );
switch ( protocol() )
{
case IPPROTO_UDP: new OUDPPacket( end, (const struct udphdr*) (data+1), this ); break;
case IPPROTO_TCP: new OTCPPacket( end, (const struct tcphdr*) (data+1), this ); break;
default: qDebug( "OIPPacket::OIPPacket(): unknown IP protocol type = %d", protocol() );
}
}
OIPPacket::~OIPPacket()
{
}
QHostAddress OIPPacket::fromIPAddress() const
{
return EXTRACT_32BITS( &_iphdr->saddr );
}
QHostAddress OIPPacket::toIPAddress() const
{
return EXTRACT_32BITS( &_iphdr->saddr );
}
int OIPPacket::tos() const
{
return _iphdr->tos;
}
int OIPPacket::len() const
{
return EXTRACT_16BITS( &_iphdr->tot_len );
}
int OIPPacket::id() const
{
return EXTRACT_16BITS( &_iphdr->id );
}
int OIPPacket::offset() const
{
return EXTRACT_16BITS( &_iphdr->frag_off );
}
int OIPPacket::ttl() const
{
return _iphdr->ttl;
}
int OIPPacket::protocol() const
{
return _iphdr->protocol;
}
int OIPPacket::checksum() const
{
return EXTRACT_16BITS( &_iphdr->check );
}
/*======================================================================================
* OARPPacket
*======================================================================================*/
OARPPacket::OARPPacket( const unsigned char* end, const struct myarphdr* data, QObject* parent )
:QObject( parent, "ARP" ), _arphdr( data )
{
qDebug( "OARPPacket::OARPPacket(): decoding ARP header..." );
qDebug( "ARP type seems to be %02d - '%s'", EXTRACT_16BITS( &_arphdr->ar_op ), (const char*) type() );
qDebug( "Sender: MAC %s = IP %s", (const char*) senderMacAddress().toString(), (const char*) senderIPV4Address().toString() );
qDebug( "Target: MAC %s = IP %s", (const char*) targetMacAddress().toString(), (const char*) targetIPV4Address().toString() );
}
OARPPacket::~OARPPacket()
{
}
QString OARPPacket::type() const
{
switch ( EXTRACT_16BITS( &_arphdr->ar_op ) )
{
case 1: return "REQUEST";
case 2: return "REPLY";
case 3: return "RREQUEST";
case 4: return "RREPLY";
case 8: return "InREQUEST";
case 9: return "InREPLY";
case 10: return "NAK";
default: qWarning( "OARPPacket::type(): invalid ARP type!" ); return "<unknown>";
}
}
QHostAddress OARPPacket::senderIPV4Address() const
{
return EXTRACT_32BITS( &_arphdr->ar_sip );
}
QHostAddress OARPPacket::targetIPV4Address() const
{
return EXTRACT_32BITS( &_arphdr->ar_tip );
}
OMacAddress OARPPacket::senderMacAddress() const
{
return OMacAddress( _arphdr->ar_sha );
}
OMacAddress OARPPacket::targetMacAddress() const
{
return OMacAddress( _arphdr->ar_tha );
}
/*======================================================================================
* OUDPPacket
*======================================================================================*/
OUDPPacket::OUDPPacket( const unsigned char* end, const struct udphdr* data, QObject* parent )
:QObject( parent, "UDP" ), _udphdr( data )
{
qDebug( "OUDPPacket::OUDPPacket(): decoding UDP header..." );
}
OUDPPacket::~OUDPPacket()
{
}
/*======================================================================================
* OTCPPacket
*======================================================================================*/
OTCPPacket::OTCPPacket( const unsigned char* end, const struct tcphdr* data, QObject* parent )
:QObject( parent, "TCP" ), _tcphdr( data )
{
qDebug( "OTCPPacket::OTCPPacket(): decoding TCP header..." );
}
OTCPPacket::~OTCPPacket()
{
}
/*======================================================================================
* OPrismHeaderPacket
*======================================================================================*/
OPrismHeaderPacket::OPrismHeaderPacket( const unsigned char* end, const struct prism_hdr* data, QObject* parent )
:QObject( parent, "Prism" ), _header( data )
{
qDebug( "OPrismHeaderPacket::OPrismHeaderPacket(): decoding PRISM header..." );
qDebug( "Signal Strength = %d", data->signal.data );
new OWaveLanPacket( end, (const struct ieee_802_11_header*) (data+1), this );
}
OPrismHeaderPacket::~OPrismHeaderPacket()
{
}
unsigned int OPrismHeaderPacket::signalStrength() const
{
return _header->signal.data;
}
/*======================================================================================
* OWaveLanPacket
*======================================================================================*/
OWaveLanPacket::OWaveLanPacket( const unsigned char* end, const struct ieee_802_11_header* data, QObject* parent )
:QObject( parent, "802.11" ), _wlanhdr( data )
{
qDebug( "OWaveLanPacket::OWaveLanPacket(): decoding IEEE 802.11 header..." );
qDebug( "type: %0X", type() );
qDebug( "subType: %0X", subType() );
qDebug( "duration: %d", duration() );
qDebug( "powermanagement: %d", usesPowerManagement() );
qDebug( "payload is encrypted: %s", usesWep() ? "yes" : "no" );
qDebug( "MAC1: %s", (const char*) macAddress1().toString() );
qDebug( "MAC2: %s", (const char*) macAddress2().toString() );
qDebug( "MAC3: %s", (const char*) macAddress3().toString() );
qDebug( "MAC4: %s", (const char*) macAddress4().toString() );
switch ( type() )
{
case T_MGMT: new OWaveLanManagementPacket( end, (const struct ieee_802_11_mgmt_header*) data, this ); break;
case T_DATA: new OWaveLanDataPacket( end, (const struct ieee_802_11_data_header*) data, this ); break;
case T_CTRL: new OWaveLanControlPacket( end, (const struct ieee_802_11_control_header*) data, this ); break;
default: qDebug( "OWaveLanPacket::OWaveLanPacket(): Warning: Unknown major type '%d'!", type() );
}
}
OWaveLanPacket::~OWaveLanPacket()
{
}
int OWaveLanPacket::duration() const
{
return _wlanhdr->duration;
}
OMacAddress OWaveLanPacket::macAddress1() const
{
return OMacAddress( _wlanhdr->mac1 );
}
OMacAddress OWaveLanPacket::macAddress2() const
{
return OMacAddress( _wlanhdr->mac2 );
}
OMacAddress OWaveLanPacket::macAddress3() const
{
return OMacAddress( _wlanhdr->mac3 );
}
OMacAddress OWaveLanPacket::macAddress4() const
{
return OMacAddress( _wlanhdr->mac4 );
}
int OWaveLanPacket::subType() const
{
return FC_SUBTYPE( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
int OWaveLanPacket::type() const
{
return FC_TYPE( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
int OWaveLanPacket::version() const
{
return FC_VERSION( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
bool OWaveLanPacket::fromDS() const
{
return FC_FROM_DS( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
bool OWaveLanPacket::toDS() const
{
return FC_TO_DS( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
bool OWaveLanPacket::usesPowerManagement() const
{
return FC_POWER_MGMT( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
bool OWaveLanPacket::usesWep() const
{
return FC_WEP( EXTRACT_LE_16BITS( &_wlanhdr->frame_control ) );
}
/*======================================================================================
* OWaveLanManagementPacket
*======================================================================================*/
OWaveLanManagementPacket::OWaveLanManagementPacket( const unsigned char* end, const struct ieee_802_11_mgmt_header* data, OWaveLanPacket* parent )
:QObject( parent, "802.11 Management" ), _header( data ),
_body( (const struct ieee_802_11_mgmt_body*) (data+1) )
{
qDebug( "OWaveLanManagementPacket::OWaveLanManagementPacket(): decoding frame..." );
qDebug( "Detected subtype is '%s'", (const char*) managementType() );
// grab tagged values
const unsigned char* ptr = (const unsigned char*) (_body+1);
while (ptr < end)
{
switch ( *ptr )
{
case E_SSID: new OWaveLanManagementSSID( end, (struct ssid_t*) ptr, this ); break;
case E_FH: new OWaveLanManagementFH( end, (struct fh_t*) ptr, this ); break;
case E_DS: new OWaveLanManagementDS( end, (struct ds_t*) ptr, this ); break;
case E_RATES: new OWaveLanManagementRates( end, (struct rates_t*) ptr, this ); break;
case E_CF: new OWaveLanManagementCF( end, (struct cf_t*) ptr, this ); break;
case E_TIM: new OWaveLanManagementTim( end, (struct tim_t*) ptr, this ); break;
case E_IBSS: new OWaveLanManagementIBSS( end, (struct ibss_t*) ptr, this ); break;
case E_CHALLENGE: new OWaveLanManagementChallenge( end, (struct challenge_t*) ptr, this ); break;
}
ptr+= ( ( struct ssid_t* ) ptr )->length; // skip length of tagged value
ptr+= 2; // skip tag ID and length
}
}
OWaveLanManagementPacket::~OWaveLanManagementPacket()
{
}
QString OWaveLanManagementPacket::managementType() const
{
switch ( FC_SUBTYPE( EXTRACT_LE_16BITS( &_header->fc ) ) )
{
case ST_ASSOC_REQUEST: return "AssociationRequest"; break;
case ST_ASSOC_RESPONSE: return "AssociationResponse"; break;
case ST_REASSOC_REQUEST: return "ReassociationRequest"; break;
case ST_REASSOC_RESPONSE: return "ReassociationResponse"; break;
case ST_PROBE_REQUEST: return "ProbeRequest"; break;
case ST_PROBE_RESPONSE: return "ProbeResponse"; break;
case ST_BEACON: return "Beacon"; break;
case ST_ATIM: return "Atim"; break;
case ST_DISASSOC: return "Disassociation"; break;
case ST_AUTH: return "Authentication"; break;
case ST_DEAUTH: return "Deathentication"; break;
default:
qWarning( "OWaveLanManagementPacket::managementType(): unhandled subtype %d", FC_SUBTYPE( EXTRACT_LE_16BITS( &_header->fc ) ) );
return "Unknown";
}
}
int OWaveLanManagementPacket::beaconInterval() const
{
return EXTRACT_LE_16BITS( &_body->beacon_interval );
}
int OWaveLanManagementPacket::capabilities() const
{
return EXTRACT_LE_16BITS( &_body->capability_info );
}
bool OWaveLanManagementPacket::canESS() const
{
return CAPABILITY_ESS( EXTRACT_LE_16BITS( &_body->capability_info ) );
}
bool OWaveLanManagementPacket::canIBSS() const
{
return CAPABILITY_IBSS( EXTRACT_LE_16BITS( &_body->capability_info ) );
}
bool OWaveLanManagementPacket::canCFP() const
{
return CAPABILITY_CFP( EXTRACT_LE_16BITS( &_body->capability_info ) );
}
bool OWaveLanManagementPacket::canCFP_REQ() const
{
return CAPABILITY_CFP_REQ( EXTRACT_LE_16BITS( &_body->capability_info ) );
}
bool OWaveLanManagementPacket::canPrivacy() const
{
return CAPABILITY_PRIVACY( EXTRACT_LE_16BITS( &_body->capability_info ) );
}
/*======================================================================================
* OWaveLanManagementSSID
*======================================================================================*/
OWaveLanManagementSSID::OWaveLanManagementSSID( const unsigned char* end, const struct ssid_t* data, QObject* parent )
:QObject( parent, "802.11 SSID" ), _data( data )
{
qDebug( "OWaveLanManagementSSID()" );
}
OWaveLanManagementSSID::~OWaveLanManagementSSID()
{
}
QString OWaveLanManagementSSID::ID() const
{
int length = _data->length;
if ( length > 32 ) length = 32;
char essid[length+1];
memcpy( &essid, &_data->ssid, length );
essid[length] = 0x0;
return essid;
}
/*======================================================================================
* OWaveLanManagementRates
*======================================================================================*/
OWaveLanManagementRates::OWaveLanManagementRates( const unsigned char* end, const struct rates_t* data, QObject* parent )
:QObject( parent, "802.11 Rates" ), _data( data )
{
qDebug( "OWaveLanManagementRates()" );
}
OWaveLanManagementRates::~OWaveLanManagementRates()
{
}
/*======================================================================================
* OWaveLanManagementCF
*======================================================================================*/
OWaveLanManagementCF::OWaveLanManagementCF( const unsigned char* end, const struct cf_t* data, QObject* parent )
:QObject( parent, "802.11 CF" ), _data( data )
{
qDebug( "OWaveLanManagementCF()" );
}
OWaveLanManagementCF::~OWaveLanManagementCF()
{
}
/*======================================================================================
* OWaveLanManagementFH
*======================================================================================*/
OWaveLanManagementFH::OWaveLanManagementFH( const unsigned char* end, const struct fh_t* data, QObject* parent )
:QObject( parent, "802.11 FH" ), _data( data )
{
qDebug( "OWaveLanManagementFH()" );
}
OWaveLanManagementFH::~OWaveLanManagementFH()
{
}
/*======================================================================================
* OWaveLanManagementDS
*======================================================================================*/
OWaveLanManagementDS::OWaveLanManagementDS( const unsigned char* end, const struct ds_t* data, QObject* parent )
:QObject( parent, "802.11 DS" ), _data( data )
{
qDebug( "OWaveLanManagementDS()" );
}
OWaveLanManagementDS::~OWaveLanManagementDS()
{
}
int OWaveLanManagementDS::channel() const
{
return _data->channel;
}
/*======================================================================================
* OWaveLanManagementTim
*======================================================================================*/
OWaveLanManagementTim::OWaveLanManagementTim( const unsigned char* end, const struct tim_t* data, QObject* parent )
:QObject( parent, "802.11 Tim" ), _data( data )
{
qDebug( "OWaveLanManagementTim()" );
}
OWaveLanManagementTim::~OWaveLanManagementTim()
{
}
/*======================================================================================
* OWaveLanManagementIBSS
*======================================================================================*/
OWaveLanManagementIBSS::OWaveLanManagementIBSS( const unsigned char* end, const struct ibss_t* data, QObject* parent )
:QObject( parent, "802.11 IBSS" ), _data( data )
{
qDebug( "OWaveLanManagementIBSS()" );
}
OWaveLanManagementIBSS::~OWaveLanManagementIBSS()
{
}
/*======================================================================================
* OWaveLanManagementChallenge
*======================================================================================*/
OWaveLanManagementChallenge::OWaveLanManagementChallenge( const unsigned char* end, const struct challenge_t* data, QObject* parent )
:QObject( parent, "802.11 Challenge" ), _data( data )
{
qDebug( "OWaveLanManagementChallenge()" );
}
OWaveLanManagementChallenge::~OWaveLanManagementChallenge()
{
}
/*======================================================================================
* OWaveLanDataPacket
*======================================================================================*/
OWaveLanDataPacket::OWaveLanDataPacket( const unsigned char* end, const struct ieee_802_11_data_header* data, OWaveLanPacket* parent )
:QObject( parent, "802.11 Data" ), _header( data )
{
qDebug( "OWaveLanDataPacket::OWaveLanDataPacket(): decoding frame..." );
const unsigned char* payload = (const unsigned char*) data + sizeof( struct ieee_802_11_data_header );
#warning The next line works for most cases, but can not be correct generally!
if (!( ( (OWaveLanPacket*) this->parent())->duration() )) payload -= 6; // compensation for missing last address
new OLLCPacket( end, (const struct ieee_802_11_802_2_header*) payload, this );
}
OWaveLanDataPacket::~OWaveLanDataPacket()
{
}
/*======================================================================================
* OLLCPacket
*======================================================================================*/
OLLCPacket::OLLCPacket( const unsigned char* end, const struct ieee_802_11_802_2_header* data, QObject* parent )
:QObject( parent, "802.11 LLC" ), _header( data )
{
qDebug( "OLLCPacket::OLLCPacket(): decoding frame..." );
if ( !(_header->oui[0] || _header->oui[1] || _header->oui[2]) )
{
qDebug( "OLLCPacket::OLLCPacket(): contains an encapsulated Ethernet frame (type=%04X)", EXTRACT_16BITS( &_header->type ) );
switch ( EXTRACT_16BITS( &_header->type ) ) // defined in linux/if_ether.h
{
case ETH_P_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break;
case ETH_P_ARP: new OARPPacket( end, (const struct myarphdr*) (data+1), this ); break;
default: qWarning( "OLLCPacket::OLLCPacket(): Unknown Encapsulation (type=%04X)", EXTRACT_16BITS( &_header->type ) );
}
}
}
OLLCPacket::~OLLCPacket()
{
}
/*======================================================================================
* OWaveLanControlPacket
*======================================================================================*/
OWaveLanControlPacket::OWaveLanControlPacket( const unsigned char* end, const struct ieee_802_11_control_header* data, OWaveLanPacket* parent )
- :QObject( parent, "802.11 Data" ), _header( data )
+ :QObject( parent, "802.11 Control" ), _header( data )
{
qDebug( "OWaveLanControlPacket::OWaveLanDataControl(): decoding frame..." );
//TODO: Implement this
}
OWaveLanControlPacket::~OWaveLanControlPacket()
{
}
/*======================================================================================
* OPacketCapturer
*======================================================================================*/
OPacketCapturer::OPacketCapturer( QObject* parent, const char* name )
:QObject( parent, name ), _name( QString::null ), _open( false ),
_pch( 0 ), _pcd( 0 ), _sn( 0 )
{
}
OPacketCapturer::~OPacketCapturer()
{
if ( _open )
{
qDebug( "OPacketCapturer::~OPacketCapturer(): pcap still open, autoclosing." );
close();
}
}
void OPacketCapturer::setBlocking( bool b )
{
if ( pcap_setnonblock( _pch, 1-b, _errbuf ) != -1 )
{
qDebug( "OPacketCapturer::setBlocking(): blocking mode changed successfully." );
}
else
{
qDebug( "OPacketCapturer::setBlocking(): can't change blocking mode: %s", _errbuf );
}
}
bool OPacketCapturer::blocking() const
{
int b = pcap_getnonblock( _pch, _errbuf );
if ( b == -1 )
{
qDebug( "OPacketCapturer::blocking(): can't get blocking mode: %s", _errbuf );
return -1;
}
return !b;
}
void OPacketCapturer::close()
{
if ( _open )
{
if ( _sn )
{
_sn->disconnect( SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
delete _sn;
}
if ( _pcd )
{
pcap_dump_close( _pcd );
_pcd = 0;
}
pcap_close( _pch );
_open = false;
}
qDebug( "OPacketCapturer::close() --- dumping capturing statistics..." );
qDebug( "--------------------------------------------------" );
for( QMap<QString,int>::Iterator it = _stats.begin(); it != _stats.end(); ++it )
qDebug( "%s : %d", (const char*) it.key(), it.data() );
qDebug( "--------------------------------------------------" );
}
int OPacketCapturer::dataLink() const
{
return pcap_datalink( _pch );
}
int OPacketCapturer::fileno() const
{
if ( _open )
{
return pcap_fileno( _pch );
}
else
{
return -1;
}
}
OPacket* OPacketCapturer::next()
{
packetheaderstruct header;
qDebug( "==> OPacketCapturer::next()" );
const unsigned char* pdata = pcap_next( _pch, &header );
qDebug( "<== OPacketCapturer::next()" );
if ( _pcd )
pcap_dump( (u_char*) _pcd, &header, pdata );
if ( pdata && header.len )
{
OPacket* p = new OPacket( dataLink(), header, pdata, 0 );
// packets shouldn't be inserted in the QObject child-parent hierarchy,
// because due to memory constraints they will be deleted as soon
// as possible - that is right after they have been processed
// by emit() [ see below ]
//TODO: make gathering statistics optional, because it takes time
p->updateStats( _stats, const_cast<QObjectList*>( p->children() ) );
return p;
}
else
{
qWarning( "OPacketCapturer::next() - no packet received!" );
return 0;
}
}
bool OPacketCapturer::open( const QString& name, const QString& filename )
{
if ( _open )
{
if ( name == _name ) // ignore opening an already openend device
{
return true;
}
else // close the last opened device
{
close();
}
}
_name = name;
// open libpcap
pcap_t* handle = pcap_open_live( const_cast<char*>( (const char*) name ), 1024, 0, 0, &_errbuf[0] );
if ( !handle )
{
qWarning( "OPacketCapturer::open(): can't open libpcap with '%s': %s", (const char*) name, _errbuf );
return false;
}
qDebug( "OPacketCapturer::open(): libpcap [%s] opened successfully.", (const char*) name );
_pch = handle;
_open = true;
_stats.clear();
// in case we have an application object, create a socket notifier
if ( qApp ) //TODO: I don't like this here...
{
_sn = new QSocketNotifier( fileno(), QSocketNotifier::Read );
connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
}
// if requested, open a dump
pcap_dumper_t* dump = pcap_dump_open( _pch, const_cast<char*>( (const char*) filename ) );
if ( !dump )
{
qWarning( "OPacketCapturer::open(): can't open dump with '%s': %s", (const char*) filename, _errbuf );
return false;
}
qDebug( "OPacketCapturer::open(): dump [%s] opened successfully.", (const char*) filename );
_pcd = dump;
return true;
}
bool OPacketCapturer::open( const QFile& file )
{
QString name = file.name();
if ( _open )
{
close();
if ( name == _name ) // ignore opening an already openend device
{
return true;
}
else // close the last opened device
{
close();
}
}
_name = name;
pcap_t* handle = pcap_open_offline( const_cast<char*>( (const char*) name ), &_errbuf[0] );
if ( handle )
{
qDebug( "OPacketCapturer::open(): libpcap opened successfully." );
_pch = handle;
_open = true;
// in case we have an application object, create a socket notifier
if ( qApp )
{
_sn = new QSocketNotifier( fileno(), QSocketNotifier::Read );
connect( _sn, SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
}
return true;
}
else
{
qDebug( "OPacketCapturer::open(): can't open libpcap with '%s': %s", (const char*) name, _errbuf );
return false;
}
}
bool OPacketCapturer::isOpen() const
{
return _open;
}
void OPacketCapturer::readyToReceive()
{
qDebug( "OPacketCapturer::readyToReceive(): about to emit 'receivePacket(p)'" );
OPacket* p = next();
emit receivedPacket( p );
// emit is synchronous - packet has been dealt with, now it's safe to delete
delete p;
}
const QMap<QString,int>& OPacketCapturer::statistics() const
{
return _stats;
}