pcpp::SllLayer Class Reference

#include <SllLayer.h>

Inheritance diagram for pcpp::SllLayer:

Public Member Functions
	SllLayer (uint8_t *data, size_t dataLen, Packet *packet)
	SllLayer (uint16_t packetType, uint16_t ARPHRDType)
sll_header *	getSllHeader () const
bool	setLinkLayerAddr (uint8_t *addr, size_t addrLength)
bool	setMacAddressAsLinkLayer (const MacAddress &macAddr)
void	parseNextLayer () override
size_t	getHeaderLen () const override
void	computeCalculateFields () override
	Calculate the next protocol type for known protocols: IPv4, IPv6, ARP, VLAN.
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

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

Represents an SLL (Linux cooked capture) protocol layer

Constructor & Destructor Documentation

SllLayer() [1/2]

pcpp::SllLayer::SllLayer ( 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

SllLayer() [2/2]

pcpp::SllLayer::SllLayer	(	uint16_t	packetType,
		uint16_t	ARPHRDType
	)

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

Parameters

[in]	packetType	The packet type
[in]	ARPHRDType	The ARPHRD type

Member Function Documentation

getHeaderLen()

size_t pcpp::SllLayer::getHeaderLen ( ) const

inlineoverridevirtual

Returns

Size of sll_header

Implements pcpp::Layer.

getOsiModelLayer()

OsiModelLayer pcpp::SllLayer::getOsiModelLayer ( ) const

inlineoverridevirtual

Returns

The OSI Model layer this protocol belongs to

Implements pcpp::Layer.

getSllHeader()

sll_header* pcpp::SllLayer::getSllHeader ( ) const

inline

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

Returns

A pointer to the sll_header

parseNextLayer()

void pcpp::SllLayer::parseNextLayer ( )

overridevirtual

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

Implements pcpp::Layer.

setLinkLayerAddr()

bool pcpp::SllLayer::setLinkLayerAddr	(	uint8_t *	addr,
		size_t	addrLength
	)

A setter for the link layer address field

Parameters

[in]	addr	The address to set. Memory will be copied to packet
[in]	addrLength	Address length, must be lower or equal to 8 (which is max length for SLL address)

Returns

True if address was set successfully, or false of addrLength is out of bounds (0 or larger than 8)

setMacAddressAsLinkLayer()

bool pcpp::SllLayer::setMacAddressAsLinkLayer

(

const MacAddress &

macAddr

)

Set a MAC address in the link layer address field

Parameters

[in]

macAddr

MAC address to set

Returns

True if address was set successfully, false if MAC address isn't valid or if set failed

toString()

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

overridevirtual

Returns

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

Implements pcpp::Layer.