author | mickeyl <mickeyl> | 2004-01-06 20:21:25 (UTC) |
---|---|---|
committer | mickeyl <mickeyl> | 2004-01-06 20:21:25 (UTC) |
commit | 543c349726a63798491e85cf0dda89e79c6183d1 (patch) (side-by-side diff) | |
tree | a230464852b0a32f1113ac4753c1423676ce66bb | |
parent | 7a9f4e78be5e2b888568ba99b2b65505d2a50bf0 (diff) | |
download | opie-543c349726a63798491e85cf0dda89e79c6183d1.zip opie-543c349726a63798491e85cf0dda89e79c6183d1.tar.gz opie-543c349726a63798491e85cf0dda89e79c6183d1.tar.bz2 |
start parsing 802.11 control frames
-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 @@ -184,141 +184,141 @@ struct ieee_802_11_frame_subtype_class { { 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; }; 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 @@ -177,230 +177,230 @@ 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
@@ -432,129 +432,129 @@ ODHCPPacket::ODHCPPacket( const unsigned char* end, const struct dhcp_packet* da {
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 );
}
@@ -704,131 +704,129 @@ bool OWaveLanPacket::toDS() const 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
{
@@ -950,286 +948,302 @@ OWaveLanManagementChallenge::OWaveLanManagementChallenge( const unsigned char* e 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();
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 @@ -336,128 +336,130 @@ class OWaveLanManagementTim : public QObject 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; |