pcpp::LLCLayer Class Reference

#include <LLCLayer.h>

Inheritance diagram for pcpp::LLCLayer:

Public Member Functions
	LLCLayer (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)
	LLCLayer (uint8_t dsap, uint8_t ssap, uint8_t control)
llc_header *	getLlcHeader () const
void	parseNextLayer () override
	Parses the next layer. Currently only STP supported as next layer.
void	computeCalculateFields () override
	Does nothing for this layer.
size_t	getHeaderLen () const 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)

Detailed Description

Represents Logical Link Control layer messages

Constructor & Destructor Documentation

LLCLayer() [1/2]

pcpp::LLCLayer::LLCLayer ( 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 llc_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

LLCLayer() [2/2]

pcpp::LLCLayer::LLCLayer	(	uint8_t	dsap,
		uint8_t	ssap,
		uint8_t	control
	)

A constructor that creates the LLC layer from provided values

Parameters

[in]	dsap	Destination Service Access Point
[in]	ssap	Source Service Access Point
[in]	control	Control Field

Member Function Documentation

getHeaderLen()

size_t pcpp::LLCLayer::getHeaderLen ( ) const

inlineoverridevirtual

Returns

Get the size of the LLC header

Implements pcpp::Layer.

getLlcHeader()

llc_header* pcpp::LLCLayer::getLlcHeader ( ) const

inline

Get a pointer to Logical Link Control (LLC) layer header

Returns

Pointer to LLC header

getOsiModelLayer()

OsiModelLayer pcpp::LLCLayer::getOsiModelLayer ( ) const

inlineoverridevirtual

Returns

The OSI layer level of LLC (Data Link Layer).

Implements pcpp::Layer.

isDataValid()

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

static

A static method that validates the input data

Parameters

[in]	data	The pointer to the beginning of a byte stream of an LLC packet
[in]	dataLen	The length of the byte stream

Returns

True if the data is valid and can represent an LLC packet

toString()

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

overridevirtual

Returns

Returns the protocol info as readable string

Implements pcpp::Layer.