#include <StpLayer.h>

Inheritance diagram for pcpp::StpTopologyChangeBPDULayer:

Public Member Functions
	StpTopologyChangeBPDULayer (uint8_t data, size_t dataLen, Layer prevLayer, Packet *packet)

	StpTopologyChangeBPDULayer ()

stp_tcn_bpdu *	getStpTcnHeader ()

size_t	getHeaderLen () const override

void	parseNextLayer () override
	Parses next layer.

std::string	toString () const override

Public Member Functions inherited from pcpp::StpLayer
stp_header *	getStpHeader () const

uint16_t	getProtoId () const

void	setProtoId (uint16_t value)

uint8_t	getVersion () const

void	setVersion (uint8_t value)

uint8_t	getType () const

void	setType (uint8_t value)

void	computeCalculateFields () override
	Does nothing for this layer.

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)

Static Public Member Functions inherited from pcpp::StpLayer
static bool	isDataValid (const uint8_t *data, size_t dataLen)

static StpLayer *	parseStpLayer (uint8_t data, size_t dataLen, Layer prevLayer, Packet *packet)

Additional Inherited Members
Static Public Attributes inherited from pcpp::StpLayer
static pcpp::MacAddress	StpMulticastDstMAC
	STP protocol uses "01:80:C2:00:00:00" multicast address as destination MAC.

static pcpp::MacAddress	StpUplinkFastMulticastDstMAC
	STP Uplink Fast protocol uses "01:00:0C:CD:CD:CD" as destination MAC.

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

Represents network topology change BPDU message of Spanning Tree Protocol

Constructor & Destructor Documentation

◆ StpTopologyChangeBPDULayer() [1/2]

pcpp::StpTopologyChangeBPDULayer::StpTopologyChangeBPDULayer	(	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
[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

◆ StpTopologyChangeBPDULayer() [2/2]

pcpp::StpTopologyChangeBPDULayer::StpTopologyChangeBPDULayer ( )

Empty c'tor to create a new network topology change (TCN) BPDU layer. Initializes the protocol identifier, version and STP type fields with correct values

Member Function Documentation

◆ getHeaderLen()

size_t pcpp::StpTopologyChangeBPDULayer::getHeaderLen ( ) const

inlineoverridevirtual

Returns: The size of STP TCN message

Reimplemented from pcpp::StpLayer.

Reimplemented in pcpp::RapidStpLayer, and pcpp::StpConfigurationBPDULayer.

◆ getStpTcnHeader()

stp_tcn_bpdu* pcpp::StpTopologyChangeBPDULayer::getStpTcnHeader ( )

inline

Get a pointer to network topology change (TCN) BPDU message

Returns: A pointer to TCN BPDU message

◆ isDataValid()

static bool pcpp::StpTopologyChangeBPDULayer::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 an Spanning Tree Topology Change BPDU packet
[in]	dataLen	The length of the byte stream

Returns: True if the data is valid and can represent an Spanning Tree packet

◆ toString()

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

inlineoverridevirtual

Returns: Returns the protocol info as readable string

Implements pcpp::Layer.

Reimplemented in pcpp::MultipleStpLayer, pcpp::RapidStpLayer, and pcpp::StpConfigurationBPDULayer.

Public Member Functions

Static Public Member Functions

Additional Inherited Members