WebSVN – Kolibri OS – Blame – /kernel/trunk/network/socket.inc

Rev	Author	Line No.	Line
3545	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
5363	yogev_ezra	3	;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
3545	hidnplayr	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; Part of the TCP/IP network stack for KolibriOS ;;
		7	;; ;;
		8	;; Written by hidnplayr@kolibrios.org, ;;
		9	;; and Clevermouse. ;;
		10	;; ;;
		11	;; Based on code by mike.dld ;;
		12	;; ;;
		13	;; GNU GENERAL PUBLIC LICENSE ;;
		14	;; Version 2, June 1991 ;;
		15	;; ;;
		16	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		17
4850	mario79	18	$Revision: 5364 $
3545	hidnplayr	19
		20	struct SOCKET
		21
		22	NextPtr dd ? ; pointer to next socket in list
		23	PrevPtr dd ? ; pointer to previous socket in list
		24	Number dd ? ; socket number
		25
		26	mutex MUTEX
		27
		28	PID dd ? ; process ID
		29	TID dd ? ; thread ID
		30	Domain dd ? ; INET/LOCAL/..
4365	hidnplayr	31	Type dd ? ; RAW/STREAM/DGRAM
3545	hidnplayr	32	Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP
		33	errorcode dd ?
		34	device dd ? ; driver pointer, socket pointer if it's an LOCAL socket
		35
		36	options dd ?
		37	state dd ?
		38	backlog dw ? ; how many incoming connections that can be queued
		39
		40	snd_proc dd ?
		41	rcv_proc dd ?
4030	hidnplayr	42	connect_proc dd ?
3545	hidnplayr	43
		44	ends
		45
		46	struct IP_SOCKET SOCKET
		47
		48	LocalIP rd 4 ; network byte order
		49	RemoteIP rd 4 ; network byte order
		50
		51	ends
		52
		53	struct TCP_SOCKET IP_SOCKET
		54
		55	LocalPort dw ? ; network byte order
		56	RemotePort dw ? ; network byte order
		57
		58	t_state dd ? ; TCB state
		59	t_rxtshift db ?
		60	rb 3 ; align
		61	t_rxtcur dd ?
		62	t_dupacks dd ?
		63	t_maxseg dd ?
		64	t_force dd ?
		65	t_flags dd ?
		66
		67	;---------------
		68	; RFC783 page 21
		69
		70	; send sequence
		71	SND_UNA dd ? ; sequence number of unack'ed sent Packets
		72	SND_NXT dd ? ; next send sequence number to use
		73	SND_UP dd ? ; urgent pointer
		74	SND_WL1 dd ? ; window minus one
		75	SND_WL2 dd ? ;
		76	ISS dd ? ; initial send sequence number
		77	SND_WND dd ? ; send window
		78
		79	; receive sequence
		80	RCV_WND dd ? ; receive window
		81	RCV_NXT dd ? ; next receive sequence number to use
		82	RCV_UP dd ? ; urgent pointer
		83	IRS dd ? ; initial receive sequence number
		84
		85	;---------------------
		86	; Additional variables
		87
		88	; receive variables
		89	RCV_ADV dd ?
		90
		91	; retransmit variables
		92	SND_MAX dd ?
		93
		94	; congestion control
4339	hidnplayr	95	SND_CWND dd ? ; congestion window
		96	SND_SSTHRESH dd ? ; slow start threshold
3545	hidnplayr	97
		98	;----------------------
		99	; Transmit timing stuff
		100	t_idle dd ?
		101	t_rtt dd ?
		102	t_rtseq dd ?
		103	t_srtt dd ?
		104	t_rttvar dd ?
		105	t_rttmin dd ?
		106	max_sndwnd dd ?
		107
		108	;-----------------
		109	; Out-of-band data
		110	t_oobflags dd ?
		111	t_iobc dd ?
		112	t_softerror dd ?
		113
		114
		115	;---------
		116	; RFC 1323 ; the order of next 4 elements may not change
		117
		118	SND_SCALE db ?
		119	RCV_SCALE db ?
		120	requested_s_scale db ?
		121	request_r_scale db ?
		122
		123	ts_recent dd ? ; a copy of the most-recent valid timestamp from the other end
		124	ts_recent_age dd ?
		125	last_ack_sent dd ?
		126
		127
		128	;-------
		129	; Timers
3600	hidnplayr	130	timer_flags dd ?
3545	hidnplayr	131	timer_retransmission dd ? ; rexmt
		132	timer_persist dd ?
		133	timer_keepalive dd ? ; keepalive/syn timeout
		134	timer_timed_wait dd ? ; also used as 2msl timer
4021	hidnplayr	135	timer_connect dd ?
3545	hidnplayr	136
		137	; extra
		138
		139	ts_ecr dd ? ; timestamp echo reply
		140	ts_val dd ?
		141
		142	seg_next dd ? ; re-assembly queue
		143
		144	ends
		145
		146	struct UDP_SOCKET IP_SOCKET
		147
		148	LocalPort dw ? ; network byte order
		149	RemotePort dw ? ; network byte order
		150
		151	ends
		152
		153
		154	struct ICMP_SOCKET IP_SOCKET
		155
		156	Identifier dw ?
		157
		158	ends
		159
		160
		161	struct RING_BUFFER
		162
		163	mutex MUTEX
		164	start_ptr dd ? ; Pointer to start of buffer
		165	end_ptr dd ? ; pointer to end of buffer
		166	read_ptr dd ? ; Read pointer
		167	write_ptr dd ? ; Write pointer
		168	size dd ? ; Number of bytes buffered
		169
		170	ends
		171
		172	struct STREAM_SOCKET TCP_SOCKET
		173
		174	rcv RING_BUFFER
		175	snd RING_BUFFER
		176
		177	ends
		178
		179	struct socket_queue_entry
		180
		181	data_ptr dd ?
		182	buf_ptr dd ?
		183	data_size dd ?
		184
		185	ends
		186
		187
		188	SOCKETBUFFSIZE = 4096 ; in bytes
		189
		190	SOCKET_QUEUE_SIZE = 10 ; maximum number of incoming packets queued for 1 socket
		191	; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start
		192	SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue)
		193
		194	uglobal
3698	hidnplayr	195	align 4
		196
3545	hidnplayr	197	net_sockets rd 4
		198	last_socket_num dd ?
		199	last_UDP_port dw ? ; These values give the number of the last used ephemeral port
		200	last_TCP_port dw ? ;
3647	hidnplayr	201	socket_mutex MUTEX
3698	hidnplayr	202
3545	hidnplayr	203	endg
		204
		205
		206	;-----------------------------------------------------------------
		207	;
		208	; SOCKET_init
		209	;
		210	;-----------------------------------------------------------------
		211	macro SOCKET_init {
		212
		213	xor eax, eax
		214	mov edi, net_sockets
		215	mov ecx, 5
3711	clevermous	216	rep stosd
3545	hidnplayr	217
		218	@@:
		219	pseudo_random eax
3600	hidnplayr	220	cmp ax, EPHEMERAL_PORT_MIN
3545	hidnplayr	221	jb @r
3600	hidnplayr	222	cmp ax, EPHEMERAL_PORT_MAX
3545	hidnplayr	223	ja @r
		224	xchg al, ah
		225	mov [last_UDP_port], ax
		226
		227	@@:
		228	pseudo_random eax
3600	hidnplayr	229	cmp ax, EPHEMERAL_PORT_MIN
3545	hidnplayr	230	jb @r
3600	hidnplayr	231	cmp ax, EPHEMERAL_PORT_MAX
3545	hidnplayr	232	ja @r
		233	xchg al, ah
		234	mov [last_TCP_port], ax
		235
3647	hidnplayr	236	mov ecx, socket_mutex
		237	call mutex_init
		238
3545	hidnplayr	239	}
		240
		241	;---------------------------

Subversion Repositories Kolibri OS

(root)/kernel/trunk/network/socket.inc @ 6908 – Rev 5364