pcpp::PostgresLayer Class Reference

#include <PostgresLayer.h>

Inheritance diagram for pcpp::PostgresLayer:

Public Member Functions
	~PostgresLayer () override=default
	A d'tor for this layer.
PostgresMessageOrigin	getPostgresOrigin () const
const PointerVector< PostgresMessage > &	getPostgresMessages () const
const PostgresMessage *	getPostgresMessage (const PostgresMessageType &messageType) const
	Get a PostgreSQL message by its type. More...
template<class TMessage , std::enable_if_t< std::is_base_of< PostgresMessage, TMessage >::value, bool > = nullptr>
const TMessage *	getPostgresMessage () const
	Get a PostgreSQL message by its type (template version) More...
size_t	getHeaderLen () const override
void	parseNextLayer () override
	Does nothing for this layer, Postgres is always last.
void	computeCalculateFields () override
	Does nothing for this layer.
OsiModelLayer	getOsiModelLayer () const override
std::string	toString () 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	isPostgresPort (uint16_t port)
static PostgresLayer *	parsePostgresBackendMessages (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)
static PostgresLayer *	parsePostgresFrontendMessages (uint8_t *data, size_t dataLen, Layer *prevLayer, Packet *packet)

Additional Inherited Members
Protected Member Functions inherited from pcpp::Layer
Packet *	getAttachedPacket ()
	Get a pointer to the Packet this layer is attached to (if any). More...
Packet const *	getAttachedPacket () const
	Get a pointer to the Packet this layer is attached to (if any). More...
template<typename T , typename... Args>
Layer *	constructNextLayer (uint8_t *data, size_t dataLen, Args &&... extraArgs)
	Construct the next layer in the protocol stack. No validation is performed on the data. More...
template<typename T , typename... Args>
Layer *	constructNextLayer (uint8_t *data, size_t dataLen, Packet *packet, Args &&... extraArgs)
template<typename TFactory , typename... Args>
Layer *	constructNextLayerFromFactory (TFactory factoryFn, uint8_t *data, size_t dataLen, Args &&... extraArgs)
	Construct the next layer in the protocol stack using a factory functor. More...
template<typename TFactory , typename... Args>
Layer *	constructNextLayerFromFactory (TFactory factoryFn, uint8_t *data, size_t dataLen, Packet *packet, Args &&... extraArgs)
	Construct the next layer in the protocol stack using a factory functor. More...
template<typename T , typename... Args>
Layer *	tryConstructNextLayer (uint8_t *data, size_t dataLen, Args &&... extraArgs)
template<typename T , typename... Args>
Layer *	tryConstructNextLayer (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, Args &&... extraArgs)
	Try to construct the next layer in the protocol stack with a fallback option. More...
template<typename T , typename TFallback , typename... Args>
Layer *	tryConstructNextLayerWithFallback (uint8_t *data, size_t dataLen, Packet *packet, Args &&... extraArgs)
template<typename TFallback , typename TFactory , typename... Args>
Layer *	tryConstructNextLayerFromFactoryWithFallback (TFactory factoryFn, uint8_t *data, size_t dataLen, Args &&... extraArgs)
	Try to construct the next layer in the protocol stack using a factory functor with a fallback option. More...
template<typename TFallback , typename TFactory , typename... Args>
Layer *	tryConstructNextLayerFromFactoryWithFallback (TFactory factoryFn, uint8_t *data, size_t dataLen, Packet *packet, Args &&... extraArgs)
	Try to construct the next layer in the protocol stack using a factory functor with a fallback option. More...
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 a PostgreSQL protocol layer

Member Function Documentation

getHeaderLen()

size_t pcpp::PostgresLayer::getHeaderLen ( ) const

inlineoverridevirtual

Returns

The size of the Postgres layer header

Implements pcpp::Layer.

getOsiModelLayer()

OsiModelLayer pcpp::PostgresLayer::getOsiModelLayer ( ) const

inlineoverridevirtual

Returns

The OSI layer level of Postgres (Application Layer).

Implements pcpp::Layer.

getPostgresMessage() [1/2]

template<class TMessage , std::enable_if_t< std::is_base_of< PostgresMessage, TMessage >::value, bool > = nullptr>

const TMessage* pcpp::PostgresLayer::getPostgresMessage ( ) const

inline

Get a PostgreSQL message by its type (template version)

Template Parameters

TMessage

The message type to retrieve (must derive from PostgresMessage)

Returns

A pointer to the message of the specified type, or nullptr if not found

getPostgresMessage() [2/2]

const PostgresMessage* pcpp::PostgresLayer::getPostgresMessage

(

const PostgresMessageType &

messageType

)

const

Get a PostgreSQL message by its type.

Parameters

[in]

messageType

The type of message to retrieve

Returns

A pointer to the message, or nullptr if not found

getPostgresMessages()

const PointerVector<PostgresMessage>& pcpp::PostgresLayer::getPostgresMessages

(

)

const

Returns

A vector of all PostgreSQL messages in this layer

getPostgresOrigin()

PostgresMessageOrigin pcpp::PostgresLayer::getPostgresOrigin ( ) const

inline

Returns

The message origin (frontend or backend)

isPostgresPort()

static bool pcpp::PostgresLayer::isPostgresPort ( uint16_t  port )

inlinestatic

A static method that checks whether the port is considered as PostgreSQL

Parameters

[in]

port

The port number to be checked

parsePostgresBackendMessages()

static PostgresLayer* pcpp::PostgresLayer::parsePostgresBackendMessages ( uint8_t *  data, size_t  dataLen, Layer *  prevLayer, Packet *  packet  )

static

Parse a PostgreSQL backend message from 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

Returns

A pointer to the parsed PostgresLayer, or nullptr if parsing fails

parsePostgresFrontendMessages()

static PostgresLayer* pcpp::PostgresLayer::parsePostgresFrontendMessages ( uint8_t *  data, size_t  dataLen, Layer *  prevLayer, Packet *  packet  )

static

Parse a PostgreSQL frontend message from 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

Returns

A pointer to the parsed PostgresLayer, or nullptr if parsing fails

toString()

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

overridevirtual

Returns

Returns the protocol info as readable string

Implements pcpp::Layer.