pcpp::CotpLayer Class Reference

#include <CotpLayer.h>

Inheritance diagram for pcpp::CotpLayer:

Public Member Functions
	CotpLayer (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)
	CotpLayer (uint8_t tpduNumber)
uint8_t	getLength () const
uint8_t	getPduType () const
uint8_t	getTpduNumber () const
size_t	getHeaderLen () const override
void	setLength (uint8_t length) const
void	setPduType (uint8_t pduType) const
void	setTpduNumber (uint8_t tpduNumber) const
void	computeCalculateFields () override
void	parseNextLayer () override
std::string	toString () const override
OsiModelLayer	getOsiModelLayer () const override
Public Member Functions inherited from pcpp::Layer
virtual	~Layer ()
Layer *	getNextLayer () const
Layer *	getPrevLayer () const
ProtocolType	getProtocol () const
bool	isMemberOfProtocolFamily (ProtocolTypeFamily protocolTypeFamily) const
uint8_t *	getData () const
size_t	getDataLen () const
uint8_t *	getLayerPayload () const
size_t	getLayerPayloadSize () const
bool	isAllocatedToPacket () const
void	copyData (uint8_t *toArr) const
uint8_t *	getDataPtr (size_t offset=0) const

Static Public Member Functions
static bool	isDataValid (const uint8_t *data, size_t dataSize)

Detailed Description

Represents a COTP (Connection Oriented Transport Protocol)

Constructor & Destructor Documentation

CotpLayer() [1/2]

pcpp::CotpLayer::CotpLayer ( uint8_t *  data, size_t  dataLen, Layer *  prevLayer, Packet *  packet  )

inline

A constructor that creates the layer from an existing packet raw data

Parameters

[in]	data	A pointer to the raw data (will be casted to cotphdr)
[in]	dataLen	Size of the data in bytes
[in]	prevLayer	A pointer to the previous layer
[in]	packet	A pointer to the Packet instance where layer will be stored in

CotpLayer() [2/2]

pcpp::CotpLayer::CotpLayer ( uint8_t  tpduNumber )

explicit

A constructor that allocates a new COTP header

Parameters

[in]

tpduNumber

Protocol TPDU number

Member Function Documentation

computeCalculateFields()

void pcpp::CotpLayer::computeCalculateFields ( )

inlineoverridevirtual

Does nothing for this layer

Implements pcpp::Layer.

getHeaderLen()

size_t pcpp::CotpLayer::getHeaderLen ( ) const

inlineoverridevirtual

Returns

Size of cotphdr

Implements pcpp::Layer.

getLength()

uint8_t pcpp::CotpLayer::getLength

(

)

const

Returns

COTP length

getOsiModelLayer()

OsiModelLayer pcpp::CotpLayer::getOsiModelLayer ( ) const

inlineoverridevirtual

Returns

The OSI Model layer this protocol belongs to

Implements pcpp::Layer.

getPduType()

uint8_t pcpp::CotpLayer::getPduType

(

)

const

Returns

COTP PDU type

getTpduNumber()

uint8_t pcpp::CotpLayer::getTpduNumber

(

)

const

Returns

COTP TPDU number

isDataValid()

static bool pcpp::CotpLayer::isDataValid ( const uint8_t *  data, size_t  dataSize  )

static

A static method that takes a byte array and detects whether it is a COTP

Parameters

[in]	data	A byte array
[in]	dataSize	The byte array size (in bytes)

Returns

True if the data looks like a valid COTP layer

parseNextLayer()

void pcpp::CotpLayer::parseNextLayer ( )

overridevirtual

Currently parses the rest of the packet as a S7COMM or generic payload (PayloadLayer)

Implements pcpp::Layer.

setLength()

void pcpp::CotpLayer::setLength

(

uint8_t

length

)

const

Set the value of the length

Parameters

[in]

length

The value of the length

setPduType()

void pcpp::CotpLayer::setPduType

(

uint8_t

pduType

)

const

Set the value of the version

Parameters

[in]

pduType

The number of the PDU type

setTpduNumber()

void pcpp::CotpLayer::setTpduNumber

(

uint8_t

tpduNumber

)

const

Set the value of the version

Parameters

[in]

tpduNumber

The value of the TPDU number

toString()

std::string pcpp::CotpLayer::toString ( ) const

overridevirtual

Returns

A string representation of the layer most important data (should look like the layer description in Wireshark)

Implements pcpp::Layer.