pcpp::PPP_PPTPLayer Class Reference

#include <GreLayer.h>

Inheritance diagram for pcpp::PPP_PPTPLayer:

Public Member Functions
	PPP_PPTPLayer (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)
	PPP_PPTPLayer (uint8_t address, uint8_t control)
ppp_pptp_header *	getPPP_PPTPHeader () const
void	parseNextLayer () override
	Currently identifies the following next layers: IPv4Layer, IPv6Layer. Otherwise sets PayloadLayer.
size_t	getHeaderLen () const override
void	computeCalculateFields () override
std::string	toString () const override
OsiModelLayer	getOsiModelLayer () const override
Public Member Functions inherited from pcpp::Layer
	~Layer () override
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 override

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

Additional Inherited Members
Protected Member Functions inherited from pcpp::Layer
template<typename T , typename... Args>
Layer *	constructNextLayer (uint8_t *data, size_t dataLen, Packet *packet, Args &&... extraArgs)
template<typename T , typename TFallback , typename... Args>
Layer *	tryConstructNextLayerWithFallback (uint8_t *data, size_t dataLen, Packet *packet, Args &&... extraArgs)
Static Protected Member Functions inherited from pcpp::Layer
template<typename T >
static bool	canReinterpretAs (const uint8_t *data, size_t dataLen)
	Check if the data is large enough to reinterpret as a type. More...

Detailed Description

Represent a PPP (point-to-point) protocol header that comes after GREv1 header, as part of PPTP - Point-to-Point Tunneling Protocol

Constructor & Destructor Documentation

PPP_PPTPLayer() [1/2]

pcpp::PPP_PPTPLayer::PPP_PPTPLayer ( 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 ppp_pptp_header)
[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

PPP_PPTPLayer() [2/2]

pcpp::PPP_PPTPLayer::PPP_PPTPLayer	(	uint8_t	address,
		uint8_t	control
	)

A constructor that allocates a new PPP-PPTP header

Parameters

[in]	address	Address field
[in]	control	Control field

Member Function Documentation

computeCalculateFields()

void pcpp::PPP_PPTPLayer::computeCalculateFields ( )

overridevirtual

Calculate the following fields:

• ppp_pptp_header::protocol

Implements pcpp::Layer.

getHeaderLen()

size_t pcpp::PPP_PPTPLayer::getHeaderLen ( ) const

inlineoverridevirtual

Returns

The size of ppp_pptp_header

Implements pcpp::Layer.

getOsiModelLayer()

OsiModelLayer pcpp::PPP_PPTPLayer::getOsiModelLayer ( ) const

inlineoverridevirtual

Returns

The OSI Model layer this protocol belongs to

Implements pcpp::Layer.

getPPP_PPTPHeader()

ppp_pptp_header* pcpp::PPP_PPTPLayer::getPPP_PPTPHeader ( ) const

inline

Get a pointer to the PPP-PPTP header. Notice this points directly to the data, so every change will change the actual packet data

Returns

A pointer to the ppp_pptp_header

isDataValid()

bool pcpp::PPP_PPTPLayer::isDataValid ( const uint8_t *  data, size_t  dataLen  )

inlinestatic

A static method that validates the input data

Parameters

[in]	data	The pointer to the beginning of a byte stream of a PPP-PPTP packet
[in]	dataLen	The length of the byte stream

Returns

True if the data is valid and can represent a PPP-PPTP packet

toString()

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

inlineoverridevirtual

Returns

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

Implements pcpp::Layer.