TCP sock type. More...

Detailed Description

TCP sock type.

Transmission control block of GNRC TCP.

Warning: For network stack internal purposes only. Do not access members externally.

Definition at line 101 of file sock_types.h.

#include <sock_types.h>

Data Fields
lwip_sock_base_t	base
	parent class

struct sock_tcp_queue *	queue
	Queue the sock might have been generated from.

mutex_t	mutex
	Mutex to protect the sock.

struct pbuf *	last_buf
	Last received data.

ssize_t	last_offset
	Offset in struct sock_tcp::last_buf since last read.

uint8_t	address_family
	Address Family of local_addr / peer_addr.

uint8_t	local_addr [sizeof(ipv6_addr_t)]
	Local IP address.

uint8_t	peer_addr [sizeof(ipv6_addr_t)]
	Peer IP address.

int8_t	ll_iface
	Link layer interface id to use.

uint16_t	local_port
	Local connections port number.

uint16_t	peer_port
	Peer connections port number.

uint8_t	state
	Connections state.

uint8_t	status
	A connections status flags.

uint32_t	snd_una
	Send unacknowledged.

uint32_t	snd_nxt
	Send next.

uint16_t	snd_wnd
	Send window.

uint32_t	snd_wl1
	SeqNo.

uint32_t	snd_wl2
	AckNo.

uint32_t	rcv_nxt
	Receive next.

uint16_t	rcv_wnd
	Receive window.

uint32_t	iss
	Initial sequence sumber.

uint32_t	irs
	Initial received sequence number.

uint16_t	mss
	The peers MSS.

uint32_t	rtt_start
	Timer value for rtt estimation.

int32_t	rtt_var
	Round trip time variance.

int32_t	srtt
	Smoothed round trip time.

int32_t	rto
	Retransmission timeout duration.

uint8_t	retries
	Number of retransmissions.

evtimer_msg_event_t	event_retransmit
	Retransmission event.

evtimer_msg_event_t	event_timeout
	Timeout event.

evtimer_mbox_event_t	event_misc
	General purpose event.

gnrc_pktsnip_t *	pkt_retransmit
	Pointer to packet in "retransmit queue".

mbox_t *	mbox
	TCB mbox for synchronization.

uint8_t *	rcv_buf_raw
	Pointer to the receive buffer.

ringbuffer_t	rcv_buf
	Receive buffer data structure.

mutex_t	fsm_lock
	Mutex for FSM access synchronization.

mutex_t	function_lock
	Mutex for function call synchronization.

struct sock_tcp *	next
	Pointer next TCB.

Field Documentation

◆ address_family

uint8_t sock_tcp::address_family

Address Family of local_addr / peer_addr.

Definition at line 45 of file tcb.h.

◆ base

lwip_sock_base_t sock_tcp::base

parent class

Definition at line 102 of file sock_types.h.

◆ event_misc

evtimer_mbox_event_t sock_tcp::event_misc

General purpose event.

Definition at line 72 of file tcb.h.

◆ event_retransmit

evtimer_msg_event_t sock_tcp::event_retransmit

Retransmission event.

Definition at line 70 of file tcb.h.

◆ event_timeout

evtimer_msg_event_t sock_tcp::event_timeout

Timeout event.

Definition at line 71 of file tcb.h.

◆ fsm_lock

mutex_t sock_tcp::fsm_lock

Mutex for FSM access synchronization.

Definition at line 77 of file tcb.h.

◆ function_lock

mutex_t sock_tcp::function_lock

Mutex for function call synchronization.

Definition at line 78 of file tcb.h.

◆ irs

uint32_t sock_tcp::irs

Initial received sequence number.

Definition at line 63 of file tcb.h.

◆ iss

uint32_t sock_tcp::iss

Initial sequence sumber.

Definition at line 62 of file tcb.h.

◆ last_buf

struct pbuf* sock_tcp::last_buf

Last received data.

Definition at line 105 of file sock_types.h.

◆ last_offset

ssize_t sock_tcp::last_offset

Offset in struct sock_tcp::last_buf since last read.

Definition at line 106 of file sock_types.h.

◆ ll_iface

int8_t sock_tcp::ll_iface

Link layer interface id to use.

Definition at line 49 of file tcb.h.

◆ local_addr

uint8_t sock_tcp::local_addr[sizeof(ipv6_addr_t)]

Local IP address.

Definition at line 47 of file tcb.h.

◆ local_port

uint16_t sock_tcp::local_port

Local connections port number.

Definition at line 51 of file tcb.h.

◆ mbox

mbox_t* sock_tcp::mbox

TCB mbox for synchronization.

Definition at line 74 of file tcb.h.

◆ mss

uint16_t sock_tcp::mss

The peers MSS.

Definition at line 64 of file tcb.h.

◆ mutex

mutex_t sock_tcp::mutex

Mutex to protect the sock.

Definition at line 104 of file sock_types.h.

◆ next

struct sock_tcp* sock_tcp::next

Pointer next TCB.

Definition at line 79 of file tcb.h.

◆ peer_addr

uint8_t sock_tcp::peer_addr[sizeof(ipv6_addr_t)]

Peer IP address.

Definition at line 48 of file tcb.h.

◆ peer_port

uint16_t sock_tcp::peer_port

Peer connections port number.

Definition at line 52 of file tcb.h.

◆ pkt_retransmit

gnrc_pktsnip_t* sock_tcp::pkt_retransmit

Pointer to packet in "retransmit queue".

Definition at line 73 of file tcb.h.

◆ queue

struct sock_tcp_queue* sock_tcp::queue

Queue the sock might have been generated from.

Definition at line 103 of file sock_types.h.

◆ rcv_buf

ringbuffer_t sock_tcp::rcv_buf

Receive buffer data structure.

Definition at line 76 of file tcb.h.

◆ rcv_buf_raw

uint8_t* sock_tcp::rcv_buf_raw

Pointer to the receive buffer.

Definition at line 75 of file tcb.h.

◆ rcv_nxt

uint32_t sock_tcp::rcv_nxt

Receive next.

Definition at line 60 of file tcb.h.

◆ rcv_wnd

uint16_t sock_tcp::rcv_wnd

Receive window.

Definition at line 61 of file tcb.h.

◆ retries

uint8_t sock_tcp::retries

Number of retransmissions.

Definition at line 69 of file tcb.h.

◆ rto

int32_t sock_tcp::rto

Retransmission timeout duration.

Definition at line 68 of file tcb.h.

◆ rtt_start

uint32_t sock_tcp::rtt_start

Timer value for rtt estimation.

Definition at line 65 of file tcb.h.

◆ rtt_var

int32_t sock_tcp::rtt_var

Round trip time variance.

Definition at line 66 of file tcb.h.

◆ snd_nxt

uint32_t sock_tcp::snd_nxt

Send next.

Definition at line 56 of file tcb.h.

◆ snd_una

uint32_t sock_tcp::snd_una

Send unacknowledged.

Definition at line 55 of file tcb.h.

◆ snd_wl1

uint32_t sock_tcp::snd_wl1

SeqNo.

from last window update

Definition at line 58 of file tcb.h.

◆ snd_wl2

uint32_t sock_tcp::snd_wl2

AckNo.

from last window update

Definition at line 59 of file tcb.h.

◆ snd_wnd

uint16_t sock_tcp::snd_wnd

Send window.

Definition at line 57 of file tcb.h.

◆ srtt

int32_t sock_tcp::srtt

Smoothed round trip time.

Definition at line 67 of file tcb.h.

◆ state

uint8_t sock_tcp::state

Connections state.

Definition at line 53 of file tcb.h.

◆ status

uint8_t sock_tcp::status

A connections status flags.

Definition at line 54 of file tcb.h.

The documentation for this struct was generated from the following files:

pkg/lwip/include/sock_types.h
sys/include/net/gnrc/tcp/tcb.h