tcp_in.c File Reference

#include "lwip/opt.h"
#include "lwip/priv/tcp_priv.h"
#include "lwip/def.h"
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/inet_chksum.h"
#include "lwip/stats.h"
#include "lwip/ip6.h"
#include "lwip/ip6_addr.h"
#include "lwip/nd6.h"
#include <string.h>
#include "path/to/my/lwip_hooks.h"

Macros
#define	LWIP_TCP_CALC_INITIAL_CWND(mss)   ((tcpwnd_size_t)LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U)))

Functions
void	tcp_input (struct pbuf *p, struct netif *inp)

Detailed Description

Transmission Control Protocol, incoming traffic

The input processing functions of the TCP layer.

These functions are generally called in the order (ip_input() ->) tcp_input() -> * tcp_process() -> tcp_receive() (-> application).

Macro Definition Documentation

LWIP_TCP_CALC_INITIAL_CWND

#define LWIP_TCP_CALC_INITIAL_CWND

(

mss

)

((tcpwnd_size_t)LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U)))

Initial CWND calculation as defined RFC 2581

Function Documentation

tcp_input()

void tcp_input	(	struct pbuf *	p,
		struct netif *	inp
	)

The initial input processing of TCP. It verifies the TCP header, demultiplexes the segment between the PCBs and passes it on to tcp_process(), which implements the TCP finite state machine. This function is called by the IP layer (in ip_input()).

Parameters

p	received TCP segment to process (p->payload pointing to the TCP header)
inp	network interface on which this segment was received