pcpp::EthLayer Class Reference

#include <EthLayer.h>

Inheritance diagram for pcpp::EthLayer:

Public Member Functions
	EthLayer (uint8_t *data, size_t dataLen, Packet *packet)
	EthLayer (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)
	EthLayer (const MacAddress &sourceMac, const MacAddress &destMac, uint16_t etherType=0)
ether_header *	getEthHeader ()
MacAddress	getSourceMac ()
void	setSourceMac (const MacAddress &sourceMac)
MacAddress	getDestMac ()
void	setDestMac (const MacAddress &destMac)
void	parseNextLayer ()
size_t	getHeaderLen ()
void	computeCalculateFields ()
std::string	toString ()
OsiModelLayer	getOsiModelLayer ()
Public Member Functions inherited from pcpp::Layer
virtual	~Layer ()
Layer *	getNextLayer ()
Layer *	getPrevLayer ()
ProtocolType	getProtocol ()
uint8_t *	getData ()
size_t	getDataLen ()
uint8_t *	getLayerPayload ()
size_t	getLayerPayloadSize ()
bool	isAllocatedToPacket ()
void	copyData (uint8_t *toArr)
uint8_t *	getDataPtr (size_t offset=0)

Detailed Description

Represents an Ethernet protocol layer

Constructor & Destructor Documentation

EthLayer() [1/3]

pcpp::EthLayer::EthLayer ( uint8_t *  data, size_t  dataLen, 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 ether_header)
[in]	dataLen	Size of the data in bytes
[in]	packet	A pointer to the Packet instance where layer will be stored in

EthLayer() [2/3]

pcpp::EthLayer::EthLayer ( 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 ether_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

EthLayer() [3/3]

pcpp::EthLayer::EthLayer	(	const MacAddress &	sourceMac,
		const MacAddress &	destMac,
		uint16_t	etherType = 0
	)

A constructor that creates a new Ethernet header and allocates the data

Parameters

[in]	sourceMac	The source MAC address
[in]	destMac	The destination MAC address
[in]	etherType	The EtherType to be used. It's an optional parameter, a value of 0 will be set if not provided

Member Function Documentation

computeCalculateFields()

void pcpp::EthLayer::computeCalculateFields ( )

virtual

Calculate ether_header::etherType for known protocols: IPv4, IPv6, ARP, VLAN

Implements pcpp::Layer.

getDestMac()

MacAddress pcpp::EthLayer::getDestMac ( )

inline

Get the destination MAC address

Returns

The destination MAC address

getEthHeader()

ether_header* pcpp::EthLayer::getEthHeader ( )

inline

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

Returns

A pointer to the ether_header

getHeaderLen()

size_t pcpp::EthLayer::getHeaderLen ( )

inlinevirtual

Returns

Size of ether_header

Implements pcpp::Layer.

getOsiModelLayer()

OsiModelLayer pcpp::EthLayer::getOsiModelLayer ( )

inlinevirtual

Returns

The OSI Model layer this protocol belongs to

Implements pcpp::Layer.

getSourceMac()

MacAddress pcpp::EthLayer::getSourceMac ( )

inline

Get the source MAC address

Returns

The source MAC address

parseNextLayer()

void pcpp::EthLayer::parseNextLayer ( )

virtual

Currently identifies the following next layers: IPv4Layer, IPv6Layer, ArpLayer, VlanLayer, PPPoESessionLayer, PPPoEDiscoveryLayer, MplsLayer. Otherwise sets PayloadLayer

Implements pcpp::Layer.

setDestMac()

void pcpp::EthLayer::setDestMac ( const MacAddress &  destMac )

inline

Set destination MAC address

Parameters

destMac

Destination MAC to set

setSourceMac()

void pcpp::EthLayer::setSourceMac ( const MacAddress &  sourceMac )

inline

Set source MAC address

Parameters

sourceMac

Source MAC to set

toString()

std::string pcpp::EthLayer::toString ( )

virtual

Returns

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

Implements pcpp::Layer.