pcpp::ESPLayer Class Reference

#include <IPSecLayer.h>

Inheritance diagram for pcpp::ESPLayer:

Public Member Functions
	ESPLayer (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)
uint32_t	getSPI () const
uint32_t	getSequenceNumber () const
size_t	getHeaderLen () const
void	parseNextLayer ()
void	computeCalculateFields ()
std::string	toString () const
OsiModelLayer	getOsiModelLayer () const
Public Member Functions inherited from pcpp::Layer
virtual	~Layer ()
Layer *	getNextLayer () const
Layer *	getPrevLayer () const
ProtocolType	getProtocol () 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

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

Detailed Description

Represents an IPSec Encapsulating Security Payload (ESP) layer

Constructor & Destructor Documentation

ESPLayer()

pcpp::ESPLayer::ESPLayer ( 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

Member Function Documentation

computeCalculateFields()

void pcpp::ESPLayer::computeCalculateFields ( )

inlinevirtual

Does nothing for this layer

Implements pcpp::Layer.

getHeaderLen()

size_t pcpp::ESPLayer::getHeaderLen ( ) const

inlinevirtual

Returns

The size of the ESP header (8 bytes)

Implements pcpp::Layer.

getOsiModelLayer()

OsiModelLayer pcpp::ESPLayer::getOsiModelLayer ( ) const

inlinevirtual

Returns

The OSI Model layer this protocol belongs to

Implements pcpp::Layer.

getSequenceNumber()

uint32_t pcpp::ESPLayer::getSequenceNumber

(

)

const

Returns

The sequence number value

getSPI()

uint32_t pcpp::ESPLayer::getSPI

(

)

const

Returns

The Security Parameters Index (SPI) field value

isDataValid()

bool pcpp::ESPLayer::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 ESP layer
[in]	dataLen	The length of byte stream

Returns

True if the data is valid and can represent an ESP layer

parseNextLayer()

void pcpp::ESPLayer::parseNextLayer ( )

virtual

The payload of an ESP layer is encrypted, hence the next layer is always a generic payload (PayloadLayer)

Implements pcpp::Layer.

toString()

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

virtual

Returns

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

Implements pcpp::Layer.