Structure describing a socket. More...

#include <socket.h>

Data Fields
uint_t	descriptor

uint_t	type

uint_t	protocol

NetInterface *	interface

IpAddr	localIpAddr

uint16_t	localPort

IpAddr	remoteIpAddr

uint16_t	remotePort

uint32_t	options
	Socket options. More...

systime_t	timeout

uint8_t	tos
	Type-of-service value. More...

uint8_t	ttl
	Time-to-live value for unicast datagrams. More...

uint8_t	multicastTtl
	Time-to-live value for multicast datagrams. More...

SocketMulticastGroup	multicastGroups [SOCKET_MAX_MULTICAST_GROUPS]
	Multicast groups. More...

int8_t	vlanPcp
	VLAN priority (802.1Q) More...

int8_t	vlanDei
	Drop eligible indicator. More...

int8_t	vmanPcp
	VMAN priority (802.1ad) More...

int8_t	vmanDei
	Drop eligible indicator. More...

int_t	errnoCode

OsEvent	event

uint_t	eventMask

uint_t	eventFlags

OsEvent *	userEvent

TcpState	state
	Current state of the TCP finite state machine. More...

bool_t	ownedFlag
	The user is the owner of the TCP socket. More...

bool_t	closedFlag
	The connection has been closed properly. More...

bool_t	resetFlag
	The connection has been reset. More...

uint16_t	mss
	Maximum segment size. More...

uint16_t	smss
	Sender maximum segment size. More...

uint16_t	rmss
	Receiver maximum segment size. More...

uint32_t	iss
	Initial send sequence number. More...

uint32_t	irs
	Initial receive sequence number. More...

uint32_t	sndUna
	Data that have been sent but not yet acknowledged. More...

uint32_t	sndNxt
	Sequence number of the next byte to be sent. More...

uint16_t	sndUser
	Amount of data buffered but not yet sent. More...

uint16_t	sndWnd
	Size of the send window. More...

uint16_t	maxSndWnd
	Maximum send window it has seen so far on the connection. More...

uint32_t	sndWl1
	Segment sequence number used for last window update. More...

uint32_t	sndWl2
	Segment acknowledgment number used for last window update. More...

uint32_t	rcvNxt
	Receive next sequence number. More...

uint16_t	rcvUser
	Number of data received but not yet consumed. More...

uint16_t	rcvWnd
	Receive window. More...

bool_t	rttBusy
	RTT measurement is being performed. More...

uint32_t	rttSeqNum
	Sequence number identifying a TCP segment. More...

systime_t	rttStartTime
	Round-trip start time. More...

systime_t	srtt
	Smoothed round-trip time. More...

systime_t	rttvar
	Round-trip time variation. More...

systime_t	rto
	Retransmission timeout. More...

TcpCongestState	congestState
	Congestion state. More...

uint16_t	cwnd
	Congestion window. More...

uint16_t	ssthresh
	Slow start threshold. More...

uint_t	dupAckCount
	Number of consecutive duplicate ACKs. More...

uint_t	n
	Number of bytes acknowledged during the whole round-trip. More...

uint32_t	recover
	NewReno modification to TCP's fast recovery algorithm. More...

bool_t	keepAliveEnabled
	Specifies whether TCP keep-alive mechanism is enabled. More...

systime_t	keepAliveIdle
	Keep-alive idle time. More...

systime_t	keepAliveInterval
	Time interval between subsequent keep-alive probes. More...

uint_t	keepAliveMaxProbes
	Number of keep-alive probes. More...

uint_t	keepAliveProbeCount
	Keep-alive probe counter. More...

systime_t	keepAliveTimestamp
	Keep-alive timestamp. More...

bool_t	sackPermitted
	SACK Permitted option received. More...

TcpSackBlock	sackBlock [TCP_MAX_SACK_BLOCKS]
	List of non-contiguous blocks that have been received. More...

uint_t	sackBlockCount
	Number of non-contiguous blocks that have been received. More...

TcpTxBuffer	txBuffer
	Send buffer. More...

size_t	txBufferSize
	Size of the send buffer. More...

TcpRxBuffer	rxBuffer
	Receive buffer. More...

size_t	rxBufferSize
	Size of the receive buffer. More...

TcpQueueItem *	retransmitQueue
	Retransmission queue. More...

NetTimer	retransmitTimer
	Retransmission timer. More...

uint_t	retransmitCount
	Number of retransmissions. More...

TcpSynQueueItem *	synQueue
	SYN queue for listening sockets. More...

uint_t	synQueueSize
	Maximum number of pending connections for listening sockets. More...

uint_t	wndProbeCount
	Zero window probe counter. More...

systime_t	wndProbeInterval
	Interval between successive probes. More...

NetTimer	persistTimer
	Persist timer. More...

NetTimer	overrideTimer
	Override timer. More...

NetTimer	finWait2Timer
	FIN-WAIT-2 timer. More...

NetTimer	timeWaitTimer
	2MSL timer More...

SocketQueueItem *	receiveQueue

Detailed Description

Structure describing a socket.

Definition at line 304 of file socket.h.

Field Documentation

◆ closedFlag

bool_t closedFlag

The connection has been closed properly.

Definition at line 340 of file socket.h.

◆ congestState

TcpCongestState congestState

Congestion state.

Definition at line 369 of file socket.h.

◆ cwnd

uint16_t cwnd

Congestion window.

Definition at line 370 of file socket.h.

◆ descriptor

uint_t descriptor

Definition at line 306 of file socket.h.

◆ dupAckCount

uint_t dupAckCount

Number of consecutive duplicate ACKs.

Definition at line 372 of file socket.h.

◆ errnoCode

int_t errnoCode

Definition at line 330 of file socket.h.

◆ event

OsEvent event

Definition at line 331 of file socket.h.

◆ eventFlags

uint_t eventFlags

Definition at line 333 of file socket.h.

◆ eventMask

uint_t eventMask

Definition at line 332 of file socket.h.

◆ finWait2Timer

NetTimer finWait2Timer

FIN-WAIT-2 timer.

Definition at line 410 of file socket.h.

◆ interface

NetInterface* interface

Definition at line 309 of file socket.h.

◆ irs

uint32_t irs

Initial receive sequence number.

Definition at line 347 of file socket.h.

◆ iss

uint32_t iss

Initial send sequence number.

Definition at line 346 of file socket.h.

◆ keepAliveEnabled

bool_t keepAliveEnabled

Specifies whether TCP keep-alive mechanism is enabled.

Definition at line 378 of file socket.h.

◆ keepAliveIdle

systime_t keepAliveIdle

Keep-alive idle time.

Definition at line 379 of file socket.h.

◆ keepAliveInterval

systime_t keepAliveInterval

Time interval between subsequent keep-alive probes.

Definition at line 380 of file socket.h.

◆ keepAliveMaxProbes

uint_t keepAliveMaxProbes

Number of keep-alive probes.

Definition at line 381 of file socket.h.

◆ keepAliveProbeCount

uint_t keepAliveProbeCount

Keep-alive probe counter.

Definition at line 382 of file socket.h.

◆ keepAliveTimestamp

systime_t keepAliveTimestamp

Keep-alive timestamp.

Definition at line 383 of file socket.h.

◆ localIpAddr

IpAddr localIpAddr

Definition at line 310 of file socket.h.

◆ localPort

uint16_t localPort

Definition at line 311 of file socket.h.

◆ maxSndWnd

uint16_t maxSndWnd

Maximum send window it has seen so far on the connection.

Definition at line 353 of file socket.h.

◆ mss

uint16_t mss

Maximum segment size.

Definition at line 343 of file socket.h.

◆ multicastGroups

SocketMulticastGroup multicastGroups[SOCKET_MAX_MULTICAST_GROUPS]

Multicast groups.

Definition at line 320 of file socket.h.

◆ multicastTtl

uint8_t multicastTtl

Time-to-live value for multicast datagrams.

Definition at line 318 of file socket.h.

◆ n

uint_t n

Number of bytes acknowledged during the whole round-trip.

Definition at line 373 of file socket.h.

◆ options

uint32_t options

Socket options.

Definition at line 314 of file socket.h.

◆ overrideTimer

NetTimer overrideTimer

Override timer.

Definition at line 409 of file socket.h.

◆ ownedFlag

bool_t ownedFlag

The user is the owner of the TCP socket.

Definition at line 339 of file socket.h.

◆ persistTimer

NetTimer persistTimer

Persist timer.

Definition at line 408 of file socket.h.

◆ protocol

uint_t protocol

Definition at line 308 of file socket.h.

◆ rcvNxt

uint32_t rcvNxt

Receive next sequence number.

Definition at line 357 of file socket.h.

◆ rcvUser

uint16_t rcvUser

Number of data received but not yet consumed.

Definition at line 358 of file socket.h.

◆ rcvWnd

uint16_t rcvWnd

Receive window.

Definition at line 359 of file socket.h.

◆ receiveQueue

SocketQueueItem* receiveQueue

Definition at line 416 of file socket.h.

◆ recover

uint32_t recover

NewReno modification to TCP's fast recovery algorithm.

Definition at line 374 of file socket.h.

◆ remoteIpAddr

IpAddr remoteIpAddr

Definition at line 312 of file socket.h.

◆ remotePort

uint16_t remotePort

Definition at line 313 of file socket.h.

◆ resetFlag

bool_t resetFlag

The connection has been reset.

Definition at line 341 of file socket.h.

◆ retransmitCount

uint_t retransmitCount

Number of retransmissions.

Definition at line 400 of file socket.h.

◆ retransmitQueue

TcpQueueItem* retransmitQueue

Retransmission queue.

Definition at line 398 of file socket.h.

◆ retransmitTimer

NetTimer retransmitTimer

Retransmission timer.

Definition at line 399 of file socket.h.

◆ rmss

uint16_t rmss

Receiver maximum segment size.

Definition at line 345 of file socket.h.

◆ rto

systime_t rto

Retransmission timeout.

Definition at line 366 of file socket.h.

◆ rttBusy

bool_t rttBusy

RTT measurement is being performed.

Definition at line 361 of file socket.h.

◆ rttSeqNum

uint32_t rttSeqNum

Sequence number identifying a TCP segment.

Definition at line 362 of file socket.h.

◆ rttStartTime

systime_t rttStartTime

Round-trip start time.

Definition at line 363 of file socket.h.

◆ rttvar

systime_t rttvar

Round-trip time variation.

Definition at line 365 of file socket.h.

◆ rxBuffer

TcpRxBuffer rxBuffer

Receive buffer.

Definition at line 395 of file socket.h.

◆ rxBufferSize

size_t rxBufferSize

Size of the receive buffer.

Definition at line 396 of file socket.h.

◆ sackBlock

TcpSackBlock sackBlock[TCP_MAX_SACK_BLOCKS]

List of non-contiguous blocks that have been received.

Definition at line 390 of file socket.h.

◆ sackBlockCount

uint_t sackBlockCount

Number of non-contiguous blocks that have been received.

Definition at line 391 of file socket.h.

◆ sackPermitted

bool_t sackPermitted

SACK Permitted option received.

Definition at line 387 of file socket.h.

◆ smss

uint16_t smss

Sender maximum segment size.

Definition at line 344 of file socket.h.

◆ sndNxt

uint32_t sndNxt

Sequence number of the next byte to be sent.

Definition at line 350 of file socket.h.

◆ sndUna

uint32_t sndUna

Data that have been sent but not yet acknowledged.

Definition at line 349 of file socket.h.

◆ sndUser

uint16_t sndUser

Amount of data buffered but not yet sent.

Definition at line 351 of file socket.h.

◆ sndWl1

uint32_t sndWl1

Segment sequence number used for last window update.

Definition at line 354 of file socket.h.

◆ sndWl2

uint32_t sndWl2

Segment acknowledgment number used for last window update.

Definition at line 355 of file socket.h.

◆ sndWnd

uint16_t sndWnd

Size of the send window.

Definition at line 352 of file socket.h.

◆ srtt

systime_t srtt

Smoothed round-trip time.

Definition at line 364 of file socket.h.

◆ ssthresh

uint16_t ssthresh

Slow start threshold.

Definition at line 371 of file socket.h.

◆ state

TcpState state

Current state of the TCP finite state machine.

Definition at line 338 of file socket.h.

◆ synQueue

TcpSynQueueItem* synQueue

SYN queue for listening sockets.

Definition at line 402 of file socket.h.

◆ synQueueSize

uint_t synQueueSize

Maximum number of pending connections for listening sockets.

Definition at line 403 of file socket.h.

◆ timeout

systime_t timeout

Definition at line 315 of file socket.h.

◆ timeWaitTimer

NetTimer timeWaitTimer

2MSL timer

Definition at line 411 of file socket.h.

◆ tos

uint8_t tos

Type-of-service value.

Definition at line 316 of file socket.h.

◆ ttl

uint8_t ttl

Time-to-live value for unicast datagrams.

Definition at line 317 of file socket.h.

◆ txBuffer

TcpTxBuffer txBuffer

Send buffer.

Definition at line 393 of file socket.h.

◆ txBufferSize

size_t txBufferSize

Size of the send buffer.

Definition at line 394 of file socket.h.

◆ type

uint_t type

Definition at line 307 of file socket.h.

◆ userEvent

OsEvent* userEvent

Definition at line 334 of file socket.h.

◆ vlanDei

int8_t vlanDei

Drop eligible indicator.

Definition at line 324 of file socket.h.

◆ vlanPcp

int8_t vlanPcp

VLAN priority (802.1Q)

Definition at line 323 of file socket.h.

◆ vmanDei

int8_t vmanDei