Subversion Repositories Kolibri OS

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;;                                                                 ;;

;; Copyright (C) KolibriOS team 2004-2010. All rights reserved.    ;;

;; Distributed under terms of the GNU General Public License       ;;

;;                                                                 ;;

;;  SOCKET.INC                                                     ;;

;;                                                                 ;;

;;    Written by hidnplayr@kolibrios.org,                          ;;

;;     and Clevermouse.                                            ;;

;;                                                                 ;;

;;       Based on code by mike.dld                                 ;;

;;                                                                 ;;

;;         GNU GENERAL PUBLIC LICENSE                              ;;

;;          Version 2, June 1991                                   ;;

;;                                                                 ;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

$Revision: 1533 $

virtual at 0

	SOCKET:

	.NextPtr		dd ? ; pointer to next socket in list

	.PrevPtr		dd ? ; pointer to previous socket in list

	.Number 		dd ? ; socket number

	.lock			dd ? ; lock mutex

	.PID			dd ? ; application process id

	.Domain 		dd ? ; INET/UNIX/..

	.Type			dd ? ; RAW/UDP/TCP/...

	.Protocol		dd ? ; ICMP/IPv4/ARP/

	.errorcode		dd ?

	.options		dd ?

	.state			dd ?

	.end:

end virtual

virtual at SOCKET.end

	IP_SOCKET:

	.LocalIP		dd ?

				rd 3 ; for IPv6 addresses

	.RemoteIP		dd ?

				rd 3 ; for IPv6 addresses

	.end:

end virtual

virtual at IP_SOCKET.end

	TCP_SOCKET:

	.LocalPort		dw ? ; In INET byte order

	.RemotePort		dw ? ; In INET byte order

	.backlog		dw ? ; Backlog

	.backlog_cur		dw ? ; current size of queue for un-accept-ed connections

	.OrigRemoteIP		dd ? ; original remote IP address (used to reset to LISTEN state)

	.OrigRemotePort 	dw ? ; original remote port (used to reset to LISTEN state)

	.t_state		dd ? ; TCB state

	.t_rxtshift		dd ?

	.t_rxtcur		dd ?

	.t_dupacks		dd ?

	.t_maxseg		dd ?

	.t_force		dd ?

	.t_flags		dd ?

;---------------

; RFC783 page 21

; send sequence

	.SND_UNA		dd ? ; sequence number of unack'ed sent Packets

	.SND_NXT		dd ? ; next send sequence number to use

	.SND_UP 		dd ?

	.SND_WL1		dd ? ; window minus one

	.SND_WL2		dd ? ;

	.ISS			dd ? ; initial send sequence number

	.SND_WND		dd ? ; send window

; receive sequence

	.RCV_WND		dw ? ; receive window

	.RCV_NXT		dd ? ; next receive sequence number to use

	.RCV_UP 		dd ?

	.IRS			dd ? ; initial receive sequence number

;---------------------

; Additional variables

; receive variables

	.RCV_ADV		dd ?

; retransmit variables

	.SND_MAX		dd ?

; congestion control

	.SND_CWND		dd ?

	.SND_SSTHRESH		dd ?

;----------------------

; Transmit timing stuff

	.t_idle 		dd ?

	.t_rtt			dd ?

	.t_rtseq		dd ?

	.t_srtt 		dd ?

	.t_rttvar		dd ?

	.t_rttmin		dd ?

	.max_sndwnd		dd ?

;-----------------

; Out-of-band data

	.t_oobflags		dd ?

	.t_iobc 		dd ?

	.t_softerror		dd ?

;---------

; RFC 1323

	.SND_SCALE		db ? ; Scale factor

	.RCV_SCALE		db ?

	.request_r_scale	db ?

	.requested_s_scale	dd ?

	.ts_recent		dd ?

	.ts_recent_age		dd ?

	.last_ack_sent		dd ?

;-------

; Timers

	.timer_retransmission	dw ? ; rexmt

	.timer_ack		dw ?

	.timer_persist		dw ?

	.timer_keepalive	dw ? ; keepalive/syn timeout

	.timer_timed_wait	dw ? ; also used as 2msl timer

	.end:

end virtual

virtual at IP_SOCKET.end

	UDP_SOCKET:

	.LocalPort		dw ? ; In INET byte order

	.RemotePort		dw ? ; In INET byte order

	.firstpacket		db ?

	.end:

end virtual

virtual at IP_SOCKET.end

	ICMP_SOCKET:

	.Identifier		dw ? ;

	.end:

end virtual

struc	RING_BUFFER {

	.start_ptr		dd ? ; Pointer to start of buffer

	.end_ptr		dd ? ; pointer to end of buffer

	.read_ptr		dd ? ; Read pointer

	.write_ptr		dd ? ; Write pointer

	.size			dd ? ; Number of bytes buffered

	.end:

}

virtual at 0

	RING_BUFFER	RING_BUFFER

end virtual

virtual at TCP_SOCKET.end

 STREAM_SOCKET:

	.rcv	rd     RING_BUFFER.end/4

	.snd	rd     RING_BUFFER.end/4

	.end:

end virtual

struct	socket_queue_entry

	.data_ptr	dd ?

	.buf_ptr	dd ?

	.data_size	dd ?

	.size:

ends

SOCKETBUFFSIZE		equ 4096     ; in bytes

SOCKET_QUEUE_SIZE	equ 10	     ; maximum number ofincoming packets queued for 1 socket

; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start

SOCKET_QUEUE_LOCATION	equ SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*socket_queue_entry.size - queue.data

uglobal

	net_sockets	rd 4

	last_UDP_port	dw ? ; These values give the number of the last used ephemeral port

	last_TCP_port	dw ? ;

endg