| -rw-r--r-- | libopie2/opienet/802_11_user.h | 4 | ||||
| -rw-r--r-- | libopie2/opienet/opcap.cpp | 38 | ||||
| -rw-r--r-- | libopie2/opienet/opcap.h | 2 |
3 files changed, 30 insertions, 14 deletions
diff --git a/libopie2/opienet/802_11_user.h b/libopie2/opienet/802_11_user.h index ad84514..7ae27c5 100644 --- a/libopie2/opienet/802_11_user.h +++ b/libopie2/opienet/802_11_user.h @@ -1,458 +1,458 @@ #ifndef IEEE_802_11 #define IEEE_802_11 enum ieee_802_11_link_status_failure_reason { reserved0, Unspecified=1, Previous_not_valid, Sender_Quits_ESS_or_IBSS, Due_Inactivity, AP_Overload, Class_2_from_NonAuth, Class_3_from_NonAuth, Sender_Quits_BSS, Association_requester_not_authenticated, Reserved10 }; #define IEEE_802_11_LINK_STATUS_FAILURE_REASON_STRINGS \ { \ {reserved0, 0xff," Reserved reason "},\ {Unspecified, 0xff," Unspecified Reason "},\ {Previous_not_valid, 0xff," Previous Authentication no longer valid "},\ {Sender_Quits_ESS_or_IBSS,0xff," Deauthenticated because sending station is leaving (has left) IBSS or ESS "},\ {Due_Inactivity, 0xff," Disassociated due to inactivity "},\ {AP_Overload, 0xff," Disassociated because AP is unable to handle all currently associated stations "},\ {Class_2_from_NonAuth, 0xff," Class 2 frame received from non-Authenticated station"},\ {Class_3_from_NonAuth, 0xff," Class 3 frame received from nonAssociated station"},\ {Sender_Quits_BSS, 0xff," Disassociated because sending station is leaving (has left) BSS"},\ {Association_requester_not_authenticated,0xff," Station requesting (Re)Association is not Authenticated with responding station"},\ {Reserved10, 0xff," Reserved"},\ {0,0,NULL}\ }; struct ieee_802_11_header { u_int16_t frame_control;// needs to be subtyped u_int16_t duration; u_int8_t mac1[6]; u_int8_t mac2[6]; u_int8_t mac3[6]; u_int16_t SeqCtl; u_int8_t mac4[6]; // u_int16_t gapLen; // u_int8_t gap[8]; }; struct ieee_802_3_header { u_int16_t status; u_int16_t payload_length; u_int8_t dst_mac[6]; u_int8_t src_mac[6]; }; #define P80211_OUI_LEN 3 struct ieee_802_11_802_2_header { u_int8_t dsap; u_int8_t ssap; /* always 0xAA */ u_int8_t ctrl; /* always 0x03 */ u_int8_t oui[P80211_OUI_LEN]; /* organizational universal id */ u_int16_t type; /* packet type ID field */ }; /* See RFC 826 for protocol description. ARP packets are variable in size; the arphdr structure defines the fixed-length portion. Protocol type values are the same as those for 10 Mb/s Ethernet. It is followed by the variable-sized fields ar_sha, arp_spa, arp_tha and arp_tpa in that order, according to the lengths specified. Field names used correspond to RFC 826. */ #define ETH_ALEN 6 struct myarphdr { unsigned short int ar_hrd; /* Format of hardware address. */ unsigned short int ar_pro; /* Format of protocol address. */ unsigned char ar_hln; /* Length of hardware address. */ unsigned char ar_pln; /* Length of protocol address. */ unsigned short int ar_op; /* ARP opcode (command). */ /* Ethernet looks like this : This bit is variable sized however... */ unsigned char ar_sha[ETH_ALEN]; /* Sender hardware address. */ unsigned char ar_sip[4]; /* Sender IP address. */ unsigned char ar_tha[ETH_ALEN]; /* Target hardware address. */ unsigned char ar_tip[4]; /* Target IP address. */ }; // following is incoplete and may be incorrect and need reorganization #define ieee_802_11_frame_type_Management 0x00 #define ieee_802_11_frame_type_Control 0x01 #define ieee_802_11_frame_type_Data 0x10 #define ieee_802_11_frame_type_Reserved 0x11 #define ieee_802_11_frame_subtype_Association_Req 0x0 // Association Request #define ieee_802_11_frame_subtype_Association_Resp 0x1 // Association Response #define ieee_802_11_frame_subtype_Reassociation_Req 0x2 // Reassociation Request #define ieee_802_11_frame_subtype_Reassociation_Resp 0x3 // Reassociation Response #define ieee_802_11_frame_subtype_Probe_Req 0x4 // Probe Request #define ieee_802_11_frame_subtype_Probe_Resp 0x5 // Probe Response #define ieee_802_11_frame_subtype_Beacon 0x8 // Beacon #define ieee_802_11_frame_subtype_ATIM 0x9 // ATIM #define ieee_802_11_frame_subtype_Disassociation 0xA // Disassociation #define ieee_802_11_frame_subtype_Authentication 0xB // Authentication #define ieee_802_11_frame_subtype_Deauthentication 0xC // Deauthentication #define ieee_802_11_frame_subtype_PS_Poll 0xA // PS-Poll #define ieee_802_11_frame_subtype_RTS 0xB // RTS #define ieee_802_11_frame_subtype_CTS 0xC // CTS #define ieee_802_11_frame_subtype_ACK 0xD // ACK #define ieee_802_11_frame_subtype_CFEnd 0xE // CF-End #define ieee_802_11_frame_subtype_CFEnd_CFAck 0xF // CF-End + CF-Ack #define ieee_802_11_frame_subtype_Data 0x0 // Data #define ieee_802_11_frame_subtype_Data_CFAck 0x1 // Data + CF-Ack #define ieee_802_11_frame_subtype_Data_CF_Poll 0x2 // Data + CF-Poll #define ieee_802_11_frame_subtype_Data_CF_AckCF_Poll 0x3 // Data + CF-Ack + CF-Poll #define ieee_802_11_frame_subtype_NullFunction 0x4 // Null Function (no data) #define ieee_802_11_frame_subtype_CF_Ack 0x5 // CF-Ack (no data) #define ieee_802_11_frame_subtype_CF_Poll 0x6 // CF-Poll (no data) #define ieee_802_11_frame_subtype_CF_AckCF_Poll 0x7 // CF-Ack + CF-Poll (no data) #define ieee_802_11_frame_subtype_strings {\ { ieee_802_11_frame_subtype_Association_Req, 0xF,"f Association Request"},\ { ieee_802_11_frame_subtype_Association_Resp, 0xF,"1 Association Response"},\ { ieee_802_11_frame_subtype_Reassociation_Req, 0xF,"2 Reassociation Request"},\ { ieee_802_11_frame_subtype_Reassociation_Resp, 0xF,"3 Reassociation Response"},\ { ieee_802_11_frame_subtype_Probe_Req , 0xF,"4 Probe Request"},\ { ieee_802_11_frame_subtype_Probe_Resp , 0xF,"5 Probe Response"},\ { ieee_802_11_frame_subtype_Beacon , 0xF,"8 Beacon"},\ { ieee_802_11_frame_subtype_ATIM , 0xF,"9 ATIM"},\ { ieee_802_11_frame_subtype_Disassociation, 0xF,"A Disassociation"},\ { ieee_802_11_frame_subtype_Authentication, 0xF,"B Authentication"},\ { ieee_802_11_frame_subtype_Deauthentication, 0xF,"C Deauthentication"},\ { ieee_802_11_frame_subtype_PS_Poll , 0xF,"A PS-Poll"},\ { ieee_802_11_frame_subtype_RTS , 0xF,"B RTS"},\ { ieee_802_11_frame_subtype_CTS , 0xF,"C CTS"},\ { ieee_802_11_frame_subtype_ACK , 0xF,"D ACK"},\ { ieee_802_11_frame_subtype_CFEnd , 0xF,"E CF-End"},\ { ieee_802_11_frame_subtype_CFEnd_CFAck , 0xF,"F CF-End + CF-Ack"},\ { ieee_802_11_frame_subtype_Data , 0xF,"0 Data"},\ { ieee_802_11_frame_subtype_Data_CFAck , 0xF,"1 Data + CF-Ack"},\ { ieee_802_11_frame_subtype_Data_CFPoll , 0xF,"2 Data + CF-Poll"},\ { ieee_802_11_frame_subtype_Data_CFAck_CFPoll, 0xF,"3 Data + CF-Ack + CF-Poll"},\ { ieee_802_11_frame_subtype_Null_Function , 0xF,"4 Null Function (no data)"},\ { ieee_802_11_frame_subtype_CFAck , 0xF,"5 CF-Ack (no data)"},\ { ieee_802_11_frame_subtype_CFPoll , 0xF,"6 CF-Poll (no data)"},\ { ieee_802_11_frame_subtype_CFAck_CFPoll, 0xF,"y7 CF-Ack + CF-Poll (no data)"},\ { 0,0,NULL}\ } struct ieee_802_11_frame_subtype_class { u_int8_t subtype; u_int8_t mask; u_int8_t klass; u_int8_t type; }; #define ieee_802_11_frame_subtype_classes {\ { ieee_802_11_frame_subtype_Association_Req, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Association_Resp, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Reassociation_Req, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Reassociation_Resp, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Probe_Req , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Probe_Resp , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Beacon , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_ATIM , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Disassociation, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Authentication, 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Deauthentication, 0xF,3,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_PS-Poll , 0xF,3,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_RTS , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_CTS , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_ACK , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_CFEnd , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_CFEnd_CFAck , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_Data , 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_Data_CFAck , 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_Data_CF_Poll 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_Data_CF_AckCF_Poll, 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_NullFunction 0xF,1,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_CF_Ack , 0xF,1,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_CF_Poll , 0xF,1,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_CF_AckCF_Poll, 0xF,1,ieee_802_11_frame_type_Data},\ { 0,0,NULL}\ } #define IEEE802_11_FC_LEN 2 #define T_MGMT 0x0 /* management */ #define T_CTRL 0x1 /* control */ #define T_DATA 0x2 /* data */ #define T_RESV 0x3 /* reserved */ #define ST_ASSOC_REQUEST 0x0 #define ST_ASSOC_RESPONSE 0x1 #define ST_REASSOC_REQUEST 0x2 #define ST_REASSOC_RESPONSE 0x3 #define ST_PROBE_REQUEST 0x4 #define ST_PROBE_RESPONSE 0x5 /* RESERVED 0x6 */ /* RESERVED 0x7 */ #define ST_BEACON 0x8 #define ST_ATIM 0x9 #define ST_DISASSOC 0xA #define ST_AUTH 0xB #define ST_DEAUTH 0xC /* RESERVED 0xD */ /* RESERVED 0xE */ /* RESERVED 0xF */ #define CTRL_PS_POLL 0xA #define CTRL_RTS 0xB #define CTRL_CTS 0xC #define CTRL_ACK 0xD #define CTRL_CF_END 0xE #define CTRL_END_ACK 0xF /* * Bits in the frame control field. */ #define FC_VERSION(fc) ((fc) & 0x3) #define FC_TYPE(fc) (((fc) >> 2) & 0x3) #define FC_SUBTYPE(fc) (((fc) >> 4) & 0xF) #define FC_TO_DS(fc) ((fc) & 0x0100) #define FC_FROM_DS(fc) ((fc) & 0x0200) #define FC_MORE_FLAG(fc) ((fc) & 0x0400) #define FC_RETRY(fc) ((fc) & 0x0800) #define FC_POWER_MGMT(fc) ((fc) & 0x1000) #define FC_MORE_DATA(fc) ((fc) & 0x2000) #define FC_WEP(fc) ((fc) & 0x4000) #define FC_ORDER(fc) ((fc) & 0x8000) struct ieee_802_11_mgmt_header { u_int16_t fc; u_int16_t duration; u_int8_t da[6]; u_int8_t sa[6]; u_int8_t bssid[6]; u_int16_t seq_ctrl; }; struct ieee_802_11_data_header { - u_int16_t frame_control; + u_int16_t fc; u_int16_t duration; u_int8_t mac1[6]; u_int8_t mac2[6]; u_int8_t mac3[6]; u_int16_t SeqCtl; u_int8_t mac4[6]; // u_int16_t gapLen; // u_int8_t gap[8]; }; struct ieee_802_11_control_header { - u_int16_t frame_control; + u_int16_t fc; u_int16_t duration; u_int8_t mac1[6]; u_int8_t mac2[6]; u_int8_t mac3[6]; u_int16_t SeqCtl; u_int8_t mac4[6]; // u_int16_t gapLen; // u_int8_t gap[8]; }; #define CAPABILITY_ESS(cap) ((cap) & 0x0001) #define CAPABILITY_IBSS(cap) ((cap) & 0x0002) #define CAPABILITY_CFP(cap) ((cap) & 0x0004) #define CAPABILITY_CFP_REQ(cap) ((cap) & 0x0008) #define CAPABILITY_PRIVACY(cap) ((cap) & 0x0010) struct ssid_t { u_int8_t element_id; u_int8_t length; u_char ssid[33]; /* 32 + 1 for null */ }; struct rates_t { u_int8_t element_id; u_int8_t length; u_int8_t rate[8]; }; struct challenge_t { u_int8_t element_id; u_int8_t length; u_int8_t text[254]; /* 1-253 + 1 for null */ }; struct fh_t { u_int8_t element_id; u_int8_t length; u_int16_t dwell_time; u_int8_t hop_set; u_int8_t hop_pattern; u_int8_t hop_index; }; struct ds_t { u_int8_t element_id; u_int8_t length; u_int8_t channel; }; struct cf_t { u_int8_t element_id; u_int8_t length; u_int8_t count; u_int8_t period; u_int16_t max_duration; u_int16_t dur_remaing; }; struct tim_t { u_int8_t element_id; u_int8_t length; u_int8_t count; u_int8_t period; u_int8_t bitmap_control; u_int8_t bitmap[251]; }; struct ibss_t { u_int8_t element_id; u_int8_t length; u_int16_t atim_window; }; #define E_SSID 0 #define E_RATES 1 #define E_FH 2 #define E_DS 3 #define E_CF 4 #define E_TIM 5 #define E_IBSS 6 #define E_CHALLENGE 16 #define E_CISCO 133 struct ieee_802_11_mgmt_body { u_int8_t timestamp[8]; u_int16_t beacon_interval; // u_int16_t listen_interval; // u_int16_t status_code; // u_int16_t aid; // u_char ap[6]; // u_int16_t reason_code; // u_int16_t auth_alg; // u_int16_t auth_trans_seq_num; // struct challenge_t challenge; u_int16_t capability_info; // struct ssid_t ssid; // struct rates_t rates; // struct ds_t ds; // struct cf_t cf; // struct fh_t fh; // struct tim_t tim; }; /* a 802.11 value */ struct val_80211 { unsigned int did; unsigned short status, len; unsigned int data; }; /* header attached during prism monitor mode */ struct prism_hdr { unsigned int msgcode, msglen; char devname[16]; struct val_80211 hosttime, mactime, channel, rssi, sq, signal, noise, rate, istx, frmlen; }; struct ieee_802_11_data_body { //FIXME }; struct ieee_802_11_control_body { //FIXME }; struct ctrl_rts_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t ta[6]; u_int8_t fcs[4]; }; #define CTRL_RTS_LEN (2+2+6+6+4) struct ctrl_cts_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t fcs[4]; }; #define CTRL_CTS_LEN (2+2+6+4) struct ctrl_ack_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t fcs[4]; }; #define CTRL_ACK_LEN (2+2+6+4) struct ctrl_ps_poll_t { u_int16_t fc; u_int16_t aid; u_int8_t bssid[6]; u_int8_t ta[6]; u_int8_t fcs[4]; }; #define CTRL_PS_POLL_LEN (2+2+6+6+4) struct ctrl_end_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t bssid[6]; u_int8_t fcs[4]; }; #define CTRL_END_LEN (2+2+6+6+4) struct ctrl_end_ack_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t bssid[6]; u_int8_t fcs[4]; }; #define CTRL_END_ACK_LEN (2+2+6+6+4) #define IV_IV(iv) ((iv) & 0xFFFFFF) #define IV_PAD(iv) (((iv) >> 24) & 0x3F) #define IV_KEYID(iv) (((iv) >> 30) & 0x03) #endif diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp index e9b3b2c..012c0a3 100644 --- a/libopie2/opienet/opcap.cpp +++ b/libopie2/opienet/opcap.cpp @@ -1,1317 +1,1331 @@ /*
This file is part of the Opie Project
Copyright (C) 2003 by Michael 'Mickey' Lauer <mickey@Vanille.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>
#include <opie2/odebug.h>
/* QT */
#include <qapplication.h> // don't use oapplication here (will decrease reusability in other projects)
#include <qsocketnotifier.h>
#include <qobjectlist.h>
/* SYSTEM */
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
/* LOCAL */
#include "udp_ports.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:
odebug << "OPacket::OPacket(): Received Packet. Datalink = ETHERNET" << oendl;
new OEthernetPacket( _end, (const struct ether_header*) data, this );
break;
case DLT_IEEE802_11:
odebug << "OPacket::OPacket(): Received Packet. Datalink = IEEE802.11" << oendl;
new OWaveLanPacket( _end, (const struct ieee_802_11_header*) data, this );
break;
case DLT_PRISM_HEADER:
odebug << "OPacket::OPacket(): Received Packet. Datalink = PRISM_HEADER" << oendl;
new OPrismHeaderPacket( _end, (const struct prism_hdr*) (unsigned char*) data, this );
break;
default:
owarn << "OPacket::OPacket(): Received Packet over unsupported datalink, type " << datalink << "!" << oendl;
}
}
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();
}
}
void OPacket::dumpStructure( QObjectList* l )
{
QString packetString( "[ |" + _dumpStructure( l ) + " ]" );
odebug << "OPacket::dumpStructure: " << packetString << oendl;
}
QString OPacket::_dumpStructure( QObjectList* l )
{
if (!l) return QString::null;
QObject* o = l->first();
QString str(" ");
while ( o )
{
str.append( o->name() );
str.append( " |" );
str += _dumpStructure( const_cast<QObjectList*>( o->children() ) );
o = l->next();
}
return str;
}
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 )
{
odebug << "Source = " << sourceAddress().toString();
odebug << "Destination = " << destinationAddress().toString();
if ( sourceAddress() == OMacAddress::broadcast )
odebug << "Source is broadcast address" << oendl;
if ( destinationAddress() == OMacAddress::broadcast )
odebug << "Destination is broadcast address" << oendl;
switch ( type() )
{
case ETHERTYPE_IP: new OIPPacket( end, (const struct iphdr*) (data+1), this ); break;
case ETHERTYPE_ARP: new OARPPacket( end, (const struct myarphdr*) (data+1), this ); break;
case ETHERTYPE_REVARP: { odebug << "OPacket::OPacket(): Received Ethernet Packet : Type = RARP" << oendl; break; }
default: odebug << "OPacket::OPacket(): Received Ethernet Packet : Type = UNKNOWN" << oendl;
}
}
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 )
{
odebug << "OIPPacket::OIPPacket(): decoding IP header..." << oendl;
- odebug << "FromAddress = " << fromIPAddress().toString();
- odebug << " toAddress = " << toIPAddress().toString();
+ odebug << "FromAddress = " << fromIPAddress().toString() << oendl; + odebug << " toAddress = " << toIPAddress().toString() << oendl; 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: odebug << "OIPPacket::OIPPacket(): unknown IP protocol, type = " << protocol() << oendl;
}
}
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 )
{
odebug << "OARPPacket::OARPPacket(): decoding ARP header..." << oendl;
odebug << "ARP type seems to be " << EXTRACT_16BITS( &_arphdr->ar_op ) << " = " << type() << oendl;
odebug << "Sender: MAC " << senderMacAddress().toString() << " = IP " << senderIPV4Address().toString() << oendl;
odebug << "Target: MAC " << targetMacAddress().toString() << " = IP " << targetIPV4Address().toString() << oendl;
}
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>";
+ default: owarn << "OARPPacket::type(): invalid ARP type!" << oendl; 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 )
{
odebug << "OUDPPacket::OUDPPacket(): decoding UDP header..." << oendl;
odebug << "fromPort = " << fromPort() << oendl;
odebug << " toPort = " << toPort() << oendl;
// TODO: Make this a case or a hash if we know more udp protocols
if ( fromPort() == UDP_PORT_BOOTPS || fromPort() == UDP_PORT_BOOTPC ||
toPort() == UDP_PORT_BOOTPS || toPort() == UDP_PORT_BOOTPC )
{
odebug << "seems to be part of a DHCP conversation => creating DHCP packet." << oendl;
new ODHCPPacket( end, (const struct dhcp_packet*) (data+1), this );
}
}
OUDPPacket::~OUDPPacket()
{
}
int OUDPPacket::fromPort() const
{
return EXTRACT_16BITS( &_udphdr->source );
}
int OUDPPacket::toPort() const
{
return EXTRACT_16BITS( &_udphdr->dest );
}
int OUDPPacket::length() const
{
return EXTRACT_16BITS( &_udphdr->len );
}
int OUDPPacket::checksum() const
{
return EXTRACT_16BITS( &_udphdr->check );
}
/*======================================================================================
* ODHCPPacket
*======================================================================================*/
ODHCPPacket::ODHCPPacket( const unsigned char* end, const struct dhcp_packet* data, QObject* parent )
:QObject( parent, "DHCP" ), _dhcphdr( data )
{
odebug << "ODHCPPacket::ODHCPPacket(): decoding DHCP information..." << oendl;
odebug << "DHCP opcode seems to be " << _dhcphdr->op << ": " << ( isRequest() ? "REQUEST" : "REPLY" ) << oendl;
odebug << "clientAddress = " << clientAddress().toString() << oendl;
odebug << " yourAddress = " << yourAddress().toString() << oendl;
odebug << "serverAddress = " << serverAddress().toString() << oendl;
odebug << " relayAddress = " << relayAddress().toString() << oendl;
odebug << "parsing DHCP options..." << oendl;
_type = 0;
const unsigned char* option = &_dhcphdr->options[4];
char tag = -1;
char len = -1;
while ( ( tag = *option++ ) != -1 /* end of option field */ )
{
len = *option++;
odebug << "recognized DHCP option #" << tag << ", length " << len << oendl;
if ( tag == DHO_DHCP_MESSAGE_TYPE )
_type = *option;
option += len;
if ( option >= end )
{
owarn << "DHCP parsing ERROR: sanity check says the packet is at its end!" << oendl;
break;
}
}
odebug << "DHCP type seems to be << " << type() << oendl;
}
ODHCPPacket::~ODHCPPacket()
{
}
bool ODHCPPacket::isRequest() const
{
return ( _dhcphdr->op == 01 );
}
bool ODHCPPacket::isReply() const
{
return ( _dhcphdr->op == 02 );
}
QString ODHCPPacket::type() const
{
switch ( _type )
{
case 1: return "DISCOVER";
case 2: return "OFFER";
case 3: return "REQUEST";
case 4: return "DECLINE";
case 5: return "ACK";
case 6: return "NAK";
case 7: return "RELEASE";
case 8: return "INFORM";
- default: qWarning( "ODHCPPacket::type(): invalid DHCP type (%d) !", _dhcphdr->op ); return "<unknown>";
+ default: owarn << "ODHCPPacket::type(): invalid DHCP type " << _dhcphdr->op << oendl; return "<unknown>"; }
}
QHostAddress ODHCPPacket::clientAddress() const
{
return EXTRACT_32BITS( &_dhcphdr->ciaddr );
}
QHostAddress ODHCPPacket::yourAddress() const
{
return EXTRACT_32BITS( &_dhcphdr->yiaddr );
}
QHostAddress ODHCPPacket::serverAddress() const
{
return EXTRACT_32BITS( &_dhcphdr->siaddr );
}
QHostAddress ODHCPPacket::relayAddress() const
{
return EXTRACT_32BITS( &_dhcphdr->giaddr );
}
OMacAddress ODHCPPacket::clientMacAddress() const
{
return OMacAddress( _dhcphdr->chaddr );
}
/*======================================================================================
* OTCPPacket
*======================================================================================*/
OTCPPacket::OTCPPacket( const unsigned char* end, const struct tcphdr* data, QObject* parent )
:QObject( parent, "TCP" ), _tcphdr( data )
{
odebug << "OTCPPacket::OTCPPacket(): decoding TCP header..." << oendl;
}
OTCPPacket::~OTCPPacket()
{
}
int OTCPPacket::fromPort() const
{
return EXTRACT_16BITS( &_tcphdr->source );
}
int OTCPPacket::toPort() const
{
return EXTRACT_16BITS( &_tcphdr->dest );
}
int OTCPPacket::seq() const
{
return EXTRACT_16BITS( &_tcphdr->seq );
}
int OTCPPacket::ack() const
{
return EXTRACT_16BITS( &_tcphdr->ack_seq );
}
int OTCPPacket::window() const
{
return EXTRACT_16BITS( &_tcphdr->window );
}
int OTCPPacket::checksum() const
{
return EXTRACT_16BITS( &_tcphdr->check );
}
/*======================================================================================
* OPrismHeaderPacket
*======================================================================================*/
OPrismHeaderPacket::OPrismHeaderPacket( const unsigned char* end, const struct prism_hdr* data, QObject* parent )
:QObject( parent, "Prism" ), _header( data )
{
odebug << "OPrismHeaderPacket::OPrismHeaderPacket(): decoding PRISM header..." << oendl;
odebug << "Signal Strength = " << data->signal.data << oendl;
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 )
{
odebug << "OWaveLanPacket::OWaveLanPacket(): decoding IEEE 802.11 header..." << oendl;
odebug << "type = " << type() << oendl;
odebug << "subType = " << subType() << oendl;
odebug << "duration = " << duration() << oendl;
odebug << "powermanagement = " << usesPowerManagement() << oendl;
odebug << "payload is encrypted = " << ( usesWep() ? "yes" : "no" ) << oendl;
odebug << "MAC1 = " << macAddress1().toString() << oendl;
odebug << "MAC2 = " << macAddress2().toString() << oendl;
odebug << "MAC3 = " << macAddress3().toString() << oendl;
odebug << "MAC4 = " << macAddress4().toString() << oendl;
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: odebug << "OWaveLanPacket::OWaveLanPacket(): Warning: Unknown major type = " << type() << oendl;
}
}
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) )
{
odebug << "OWaveLanManagementPacket::OWaveLanManagementPacket(): decoding frame..." << oendl;
odebug << "Detected subtype is " << managementType() << oendl;
// 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";
+ default: owarn << "OWaveLanManagementPacket::managementType(): unhandled subtype " << FC_SUBTYPE( EXTRACT_LE_16BITS( &_header->fc ) ) << oendl; 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 )
{
odebug << "OWaveLanManagementSSID()" << oendl;
}
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 )
{
odebug << "OWaveLanManagementRates()" << oendl;
}
OWaveLanManagementRates::~OWaveLanManagementRates()
{
}
/*======================================================================================
* OWaveLanManagementCF
*======================================================================================*/
OWaveLanManagementCF::OWaveLanManagementCF( const unsigned char* end, const struct cf_t* data, QObject* parent )
:QObject( parent, "802.11 CF" ), _data( data )
{
odebug << "OWaveLanManagementCF()" << oendl;
}
OWaveLanManagementCF::~OWaveLanManagementCF()
{
}
/*======================================================================================
* OWaveLanManagementFH
*======================================================================================*/
OWaveLanManagementFH::OWaveLanManagementFH( const unsigned char* end, const struct fh_t* data, QObject* parent )
:QObject( parent, "802.11 FH" ), _data( data )
{
odebug << "OWaveLanManagementFH()" << oendl;
}
OWaveLanManagementFH::~OWaveLanManagementFH()
{
}
/*======================================================================================
* OWaveLanManagementDS
*======================================================================================*/
OWaveLanManagementDS::OWaveLanManagementDS( const unsigned char* end, const struct ds_t* data, QObject* parent )
:QObject( parent, "802.11 DS" ), _data( data )
{
odebug << "OWaveLanManagementDS()" << oendl;
}
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 )
{
odebug << "OWaveLanManagementTim()" << oendl;
}
OWaveLanManagementTim::~OWaveLanManagementTim()
{
}
/*======================================================================================
* OWaveLanManagementIBSS
*======================================================================================*/
OWaveLanManagementIBSS::OWaveLanManagementIBSS( const unsigned char* end, const struct ibss_t* data, QObject* parent )
:QObject( parent, "802.11 IBSS" ), _data( data )
{
odebug << "OWaveLanManagementIBSS()" << oendl;
}
OWaveLanManagementIBSS::~OWaveLanManagementIBSS()
{
}
/*======================================================================================
* OWaveLanManagementChallenge
*======================================================================================*/
OWaveLanManagementChallenge::OWaveLanManagementChallenge( const unsigned char* end, const struct challenge_t* data, QObject* parent )
:QObject( parent, "802.11 Challenge" ), _data( data )
{
odebug << "OWaveLanManagementChallenge()" << oendl;
}
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 )
{
odebug << "OWaveLanDataPacket::OWaveLanDataPacket(): decoding frame..." << oendl;
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 )
{
odebug << "OLLCPacket::OLLCPacket(): decoding frame..." << oendl;
if ( !(_header->oui[0] || _header->oui[1] || _header->oui[2]) )
{
owarn << "OLLCPacket::OLLCPacket(): contains an encapsulated Ethernet frame (type = " << EXTRACT_16BITS( &_header->type ) << ")" << oendl;
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: owarn << "OLLCPacket::OLLCPacket(): Unknown Encapsulation type = " << EXTRACT_16BITS( &_header->type ) << oendl;
}
}
}
OLLCPacket::~OLLCPacket()
{
}
/*======================================================================================
* OWaveLanControlPacket
*======================================================================================*/
OWaveLanControlPacket::OWaveLanControlPacket( const unsigned char* end, const struct ieee_802_11_control_header* data, OWaveLanPacket* parent )
:QObject( parent, "802.11 Control" ), _header( data )
{
odebug << "OWaveLanControlPacket::OWaveLanDataControl(): decoding frame..." << oendl;
- //TODO: Implement this
+ odebug << "Detected subtype is " << controlType() << oendl; }
OWaveLanControlPacket::~OWaveLanControlPacket()
{
}
+QString OWaveLanControlPacket::controlType() const +{ + switch ( FC_SUBTYPE( EXTRACT_LE_16BITS( &_header->fc ) ) ) + { + case CTRL_PS_POLL: return "PowerSavePoll"; break; + case CTRL_RTS: return "RequestToSend"; break; + case CTRL_CTS: return "ClearToSend"; break; + case CTRL_ACK: return "Acknowledge"; break; + case CTRL_CF_END: return "ContentionFreeEnd"; break; + case CTRL_END_ACK: return "AcknowledgeEnd"; break; + default: + owarn << "OWaveLanControlPacket::managementType(): unhandled subtype " << FC_SUBTYPE( EXTRACT_LE_16BITS( &_header->fc ) ) << oendl; + return "Unknown"; + } +} + + /*======================================================================================
* OPacketCapturer
*======================================================================================*/
OPacketCapturer::OPacketCapturer( QObject* parent, const char* name )
- :QObject( parent, name ), _name( QString::null ), _open( false ),
- _pch( 0 ), _pcd( 0 ), _sn( 0 )
+ :QObject( parent, name ), _name( QString::null ), _open( false ), _pch( 0 ), _pcd( 0 ), _sn( 0 ) {
}
OPacketCapturer::~OPacketCapturer()
{
if ( _open )
{
odebug << "OPacketCapturer::~OPacketCapturer(): pcap still open, autoclosing." << oendl;
close();
}
}
void OPacketCapturer::setBlocking( bool b )
{
if ( pcap_setnonblock( _pch, 1-b, _errbuf ) != -1 )
{
odebug << "OPacketCapturer::setBlocking(): blocking mode changed successfully." << oendl;
}
else
{
odebug << "OPacketCapturer::setBlocking(): can't change blocking mode: " << _errbuf << oendl;
}
}
bool OPacketCapturer::blocking() const
{
int b = pcap_getnonblock( _pch, _errbuf );
if ( b == -1 )
{
odebug << "OPacketCapturer::blocking(): can't get blocking mode: " << _errbuf << oendl;
return -1;
}
return !b;
}
void OPacketCapturer::closeDumpFile()
{
if ( _pcd )
{
pcap_dump_close( _pcd );
_pcd = 0;
}
pcap_close( _pch );
}
void OPacketCapturer::close()
{
if ( _open )
{
if ( _sn )
{
_sn->disconnect( SIGNAL( activated(int) ), this, SLOT( readyToReceive() ) );
delete _sn;
}
closeDumpFile();
_open = false;
}
odebug << "OPacketCapturer::close() --- dumping capturing statistics..." << oendl;
odebug << "--------------------------------------------------" << oendl;
for( QMap<QString,int>::Iterator it = _stats.begin(); it != _stats.end(); ++it )
odebug << it.key() << " = " << it.data() << oendl;
odebug << "--------------------------------------------------" << oendl;
}
int OPacketCapturer::dataLink() const
{
return pcap_datalink( _pch );
}
void OPacketCapturer::dump( OPacket* p )
{
if ( !_pcd )
{
- qWarning( "OPacketCapturer::dump() - cannot dump without open capture file!" );
+ owarn << "OPacketCapturer::dump() - cannot dump without open capture file!" << oendl; return;
}
pcap_dump( (u_char*) _pcd, &p->_hdr, p->_data );
}
int OPacketCapturer::fileno() const
{
if ( _open )
{
return pcap_fileno( _pch );
}
else
{
return -1;
}
}
OPacket* OPacketCapturer::next( int time )
{
fd_set fds;
struct timeval tv;
FD_ZERO( &fds );
FD_SET( pcap_fileno( _pch ), &fds );
tv.tv_sec = time / 1000;
tv.tv_usec = time % 1000;
int retval = select( pcap_fileno( _pch )+1, &fds, NULL, NULL, &tv);
if ( retval > 0 ) // clear to read!
return next();
else
return 0;
}
OPacket* OPacketCapturer::next()
{
packetheaderstruct header;
odebug << "==> OPacketCapturer::next()" << oendl;
const unsigned char* pdata = pcap_next( _pch, &header );
odebug << "<== OPacketCapturer::next()" << oendl;
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() ) );
#ifndef NODEBUG
p->dumpStructure( const_cast<QObjectList*>( p->children() ) );
#endif
return p;
}
else
{
- qWarning( "OPacketCapturer::next() - no packet received!" );
+ owarn << "OPacketCapturer::next() - no packet received!" << oendl; return 0;
}
}
bool OPacketCapturer::open( const QString& name )
{
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 )
{
owarn << "OPacketCapturer::open(): can't open libpcap with '" << name << "': " << _errbuf << oendl;
return false;
}
odebug << "OPacketCapturer::open(): libpcap [" << name << "] opened successfully." << oendl;
_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() ) );
}
return true;
}
bool OPacketCapturer::openDumpFile( const QString& filename )
{
pcap_dumper_t* dump = pcap_dump_open( _pch, const_cast<char*>( (const char*) filename ) );
if ( !dump )
{
owarn << "OPacketCapturer::open(): can't open dump with '" << filename << "': " << _errbuf << oendl;
return false;
}
odebug << "OPacketCapturer::open(): dump [" << filename << "] opened successfully." << oendl;
_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 )
{
odebug << "OPacketCapturer::open(): libpcap opened successfully." << oendl;
_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
{
odebug << "OPacketCapturer::open(): can't open libpcap with '" << name << "': " << _errbuf << oendl;
return false;
}
}
bool OPacketCapturer::isOpen() const
{
return _open;
}
void OPacketCapturer::readyToReceive()
{
odebug << "OPacketCapturer::readyToReceive(): about to emit 'receivePacket(p)'" << oendl;
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;
}
int OPacketCapturer::snapShot() const
{
return pcap_snapshot( _pch );
}
bool OPacketCapturer::swapped() const
{
return pcap_is_swapped( _pch );
}
QString OPacketCapturer::version() const
{
return QString().sprintf( "%s.%s", pcap_major_version( _pch ), pcap_minor_version( _pch ) );
}
diff --git a/libopie2/opienet/opcap.h b/libopie2/opienet/opcap.h index 497fd6b..b373c56 100644 --- a/libopie2/opienet/opcap.h +++ b/libopie2/opienet/opcap.h @@ -1,664 +1,666 @@ /* This file is part of the Opie Project Copyright (C) 2003 by Michael 'Mickey' Lauer <mickey@Vanille.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> /* Custom Network Includes */ #include "802_11_user.h" #include "dhcp.h" /* TYPEDEFS */ typedef struct timeval timevalstruct; typedef struct pcap_pkthdr packetheaderstruct; /* FORWARDS */ class OPacketCapturer; class QSocketNotifier; /*====================================================================================== * OPacket - A frame on the wire *======================================================================================*/ /** @brief A class representing a data frame on the wire. * * The whole family of the packet classes are used when capturing frames from a network. * Most standard network protocols in use share a common architecture, which mostly is * a packet header and then the packet payload. In layered architectures, each lower layer * encapsulates data from its upper layer - that is it * treats the data from its upper layer as payload and prepends an own header to the packet, * which - again - is treated as the payload for the layer below. The figure below is an * example for how such a data frame is composed out of packets, e.g. when sending a mail. * * <pre> * | User Data | == Mail Data * | SMTP Header | User Data | == SMTP * | TCP Header | SMTP Header | User Data | == TCP * | IP Header | TCP Header | SMTP Header | User Data | == IP * | MAC Header | IP Header | TCP Header | SMTP Header | User Data | == MAC * * </pre> * * The example is trimmed for simplicity, because the MAC (Medium Access Control) layer * also contains a few more levels of encapsulation. * Since the type of the payload is more or less independent from the encapsulating protocol, * the header must be inspected before attempting to decode the payload. Hence, the * encapsulation level varies and can't be deduced without actually looking into the packets. * * For actually working with captured frames, it's useful to identify the packets via names and * insert them into a parent/child - relationship based on the encapsulation. This is why * all packet classes derive from QObject. The amount of overhead caused by the QObject is * not a problem in this case, because we're talking about a theoratical maximum of about * 10 packets per captured frame. We need to stuff them into a searchable list anyway and the * QObject also cares about destroying the sub-, (child-) packets. * * This enables us to perform a simple look for packets of a certain type: * @code * OPacketCapturer* pcap = new OPacketCapturer(); * pcap->open( "eth0" ); * OPacket* p = pcap->next(); * OIPPacket* ip = (OIPPacket*) p->child( "IP" ); // returns 0, if no such child exists * odebug << "got ip packet from " << ip->fromIPAddress().toString() << " to " << ip->toIPAddress().toString() << oendl; * */ class OPacket : public QObject { Q_OBJECT friend class OPacketCapturer; 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: void dumpStructure( QObjectList* ); QString _dumpStructure( 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 { Q_OBJECT public: OEthernetPacket( const unsigned char*, const struct ether_header*, QObject* parent = 0 ); virtual ~OEthernetPacket(); OMacAddress sourceAddress() const; OMacAddress destinationAddress() const; int type() const; private: const struct ether_header* _ether; }; /*====================================================================================== * OPrismHeaderPacket - DLT_PRISM_HEADER frame *======================================================================================*/ class OPrismHeaderPacket : public QObject { Q_OBJECT public: OPrismHeaderPacket( const unsigned char*, const struct prism_hdr*, QObject* parent = 0 ); virtual ~OPrismHeaderPacket(); unsigned int signalStrength() const; private: const struct prism_hdr* _header; }; /*====================================================================================== * OWaveLanPacket - DLT_IEEE802_11 frame *======================================================================================*/ class OWaveLanPacket : public QObject { Q_OBJECT public: OWaveLanPacket( const unsigned char*, const struct ieee_802_11_header*, QObject* parent = 0 ); virtual ~OWaveLanPacket(); int duration() const; bool fromDS() const; bool toDS() const; virtual OMacAddress macAddress1() const; virtual OMacAddress macAddress2() const; virtual OMacAddress macAddress3() const; virtual OMacAddress macAddress4() const; bool usesPowerManagement() const; int type() const; int subType() const; int version() const; bool usesWep() const; private: const struct ieee_802_11_header* _wlanhdr; }; /*====================================================================================== * OWaveLanManagementPacket - type: management (T_MGMT) *======================================================================================*/ class OWaveLanManagementPacket : public QObject { Q_OBJECT public: OWaveLanManagementPacket( const unsigned char*, const struct ieee_802_11_mgmt_header*, OWaveLanPacket* parent = 0 ); virtual ~OWaveLanManagementPacket(); QString managementType() const; int beaconInterval() const; int capabilities() const; // generic bool canESS() const; bool canIBSS() const; bool canCFP() const; bool canCFP_REQ() const; bool canPrivacy() const; private: const struct ieee_802_11_mgmt_header* _header; const struct ieee_802_11_mgmt_body* _body; }; /*====================================================================================== * OWaveLanManagementSSID *======================================================================================*/ class OWaveLanManagementSSID : public QObject { Q_OBJECT public: OWaveLanManagementSSID( const unsigned char*, const struct ssid_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementSSID(); QString ID() const; private: const struct ssid_t* _data; }; /*====================================================================================== * OWaveLanManagementRates *======================================================================================*/ class OWaveLanManagementRates : public QObject { Q_OBJECT public: OWaveLanManagementRates( const unsigned char*, const struct rates_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementRates(); private: const struct rates_t* _data; }; /*====================================================================================== * OWaveLanManagementCF *======================================================================================*/ class OWaveLanManagementCF : public QObject { Q_OBJECT public: OWaveLanManagementCF( const unsigned char*, const struct cf_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementCF(); private: const struct cf_t* _data; }; /*====================================================================================== * OWaveLanManagementFH *======================================================================================*/ class OWaveLanManagementFH : public QObject { Q_OBJECT public: OWaveLanManagementFH( const unsigned char*, const struct fh_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementFH(); private: const struct fh_t* _data; }; /*====================================================================================== * OWaveLanManagementDS *======================================================================================*/ class OWaveLanManagementDS : public QObject { Q_OBJECT public: OWaveLanManagementDS( const unsigned char*, const struct ds_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementDS(); int channel() const; private: const struct ds_t* _data; }; /*====================================================================================== * OWaveLanManagementTim *======================================================================================*/ class OWaveLanManagementTim : public QObject { Q_OBJECT public: OWaveLanManagementTim( const unsigned char*, const struct tim_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementTim(); private: const struct tim_t* _data; }; /*====================================================================================== * OWaveLanManagementIBSS *======================================================================================*/ class OWaveLanManagementIBSS : public QObject { Q_OBJECT public: OWaveLanManagementIBSS( const unsigned char*, const struct ibss_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementIBSS(); private: const struct ibss_t* _data; }; /*====================================================================================== * OWaveLanManagementChallenge *======================================================================================*/ class OWaveLanManagementChallenge : public QObject { Q_OBJECT public: OWaveLanManagementChallenge( const unsigned char*, const struct challenge_t*, QObject* parent = 0 ); virtual ~OWaveLanManagementChallenge(); private: const struct challenge_t* _data; }; /*====================================================================================== * OWaveLanDataPacket - type: data (T_DATA) *======================================================================================*/ class OWaveLanDataPacket : public QObject { Q_OBJECT public: OWaveLanDataPacket( const unsigned char*, const struct ieee_802_11_data_header*, OWaveLanPacket* parent = 0 ); virtual ~OWaveLanDataPacket(); private: const struct ieee_802_11_data_header* _header; }; /*====================================================================================== * OWaveLanControlPacket - type: control (T_CTRL) *======================================================================================*/ class OWaveLanControlPacket : public QObject { Q_OBJECT public: OWaveLanControlPacket( const unsigned char*, const struct ieee_802_11_control_header*, OWaveLanPacket* parent = 0 ); virtual ~OWaveLanControlPacket(); + QString controlType() const; + private: const struct ieee_802_11_control_header* _header; }; /*====================================================================================== * OLLCPacket - IEEE 802.2 Link Level Control *======================================================================================*/ class OLLCPacket : public QObject { Q_OBJECT public: OLLCPacket( const unsigned char*, const struct ieee_802_11_802_2_header* data, QObject* parent = 0 ); virtual ~OLLCPacket(); private: const struct ieee_802_11_802_2_header* _header; }; /*====================================================================================== * OIPPacket *======================================================================================*/ class OIPPacket : public QObject { Q_OBJECT public: OIPPacket( const unsigned char*, const struct iphdr*, QObject* parent = 0 ); virtual ~OIPPacket(); QHostAddress fromIPAddress() const; QHostAddress toIPAddress() const; int tos() const; int len() const; int id() const; int offset() const; int ttl() const; int protocol() const; int checksum() const; private: const struct iphdr* _iphdr; }; /*====================================================================================== * OARPPacket *======================================================================================*/ class OARPPacket : public QObject { Q_OBJECT public: OARPPacket( const unsigned char*, const struct myarphdr*, QObject* parent = 0 ); virtual ~OARPPacket(); QHostAddress senderIPV4Address() const; OMacAddress senderMacAddress() const; QHostAddress targetIPV4Address() const; OMacAddress targetMacAddress() const; //int type() const; QString type() const; private: const struct myarphdr* _arphdr; }; /*====================================================================================== * 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; int length() const; int checksum() const; private: const struct udphdr* _udphdr; }; /*====================================================================================== * ODHCPPacket *======================================================================================*/ class ODHCPPacket : public QObject { Q_OBJECT public: ODHCPPacket( const unsigned char*, const struct dhcp_packet*, QObject* parent = 0 ); virtual ~ODHCPPacket(); QHostAddress clientAddress() const; QHostAddress yourAddress() const; QHostAddress serverAddress() const; QHostAddress relayAddress() const; OMacAddress clientMacAddress() const; bool isRequest() const; bool isReply() const; QString type() const; private: const struct dhcp_packet* _dhcphdr; unsigned char _type; }; /*====================================================================================== * 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; int seq() const; int ack() const; int window() const; int checksum() 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. * @see http://tcpdump.org */ class OPacketCapturer : public QObject { Q_OBJECT public: /** * Constructor. */ OPacketCapturer( QObject* parent = 0, const char* name = 0 ); /** * Destructor. */ ~OPacketCapturer(); /** * Set the packet capturer to use blocking or non-blocking IO. This 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; /** * Close the packet capturer. This is automatically done in the destructor. */ void close(); /** * Close the output capture file. */ void closeDumpFile(); /** * @returns the data link type. * @see <pcap.h> for possible values. */ int dataLink() const; /** * Dump a packet to the output capture file. */ void dump( OPacket* ); /** * @returns the file descriptor 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(); /** * @returns the next @ref OPacket from the packet capturer, if * one arrives within @a time milliseconds. */ OPacket* next( int time ); /** * 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 ); /** * Open a prerecorded tcpdump compatible capture file for use with @ref dump() */ bool openDumpFile( const QString& filename ); /** * @returns true if the packet capturer is open */ bool isOpen() const; /** * @returns the snapshot length of this packet capturer */ int snapShot() const; /** * @returns true if the input capture file has a different byte-order * than the byte-order of the running system. */ bool swapped() const; /** * @returns the libpcap version string used to write the input capture file. */ QString version() const; /** * @returns the packet statistic database. * @see QMap */ 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 pcap_dumper_t* _pcd; // pcap dumper 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 |