uip_conn Struct Reference
[The uIP TCP/IP stack]

#include <uip.h>

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Detailed Description

Representation of a uIP TCP connection.

The uip_conn structure is used for identifying a connection. All but one field in the structure are to be considered read-only by an application. The only exception is the appstate field whos purpose is to let the application store application-specific state (e.g., file pointers) for the connection. The size of this field is configured in the "uipopt.h" header file.

Data Fields
u16_t	ripaddr [2]
	The IP address of the remote host.
u16_t	lport
	The local TCP port, in network byte order.
u16_t	rport
	The local remote TCP port, in network byte order.
u8_t	rcv_nxt [4]
	The sequence number that we expect to receive next.
u8_t	snd_nxt [4]
	The sequence number that was last sent by us.
u16_t	len
	Length of the data that was previously sent.
u16_t	mss
	Current maximum segment size for the connection.
u16_t	initialmss
	Initial maximum segment size for the connection.
u8_t	sa
	Retransmission time-out calculation state variable.
u8_t	sv
	Retransmission time-out calculation state variable.
u8_t	rto
	Retransmission time-out.
u8_t	tcpstateflags
	TCP state and flags.
u8_t	timer
	The retransmission timer.
u8_t	nrtx
	The number of retransmissions for the last segment sent.
u8_t	appstate [UIP_APPSTATE_SIZE]
	The application state.

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