WebSVN – Kolibri OS – Blame – /kernel/branches/net/network/socket.inc

Rev	Author	Line No.	Line
1159	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
2362	hidnplayr	3	;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
1159	hidnplayr	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
2888	hidnplayr	6	;; Part of the tcp/ip network stack for KolibriOS ;;
		7	;; ;;
		8	;; Written by hidnplayr@kolibrios.org, ;;
1529	hidnplayr	9	;; and Clevermouse. ;;
1159	hidnplayr	10	;; ;;
1529	hidnplayr	11	;; Based on code by mike.dld ;;
1159	hidnplayr	12	;; ;;
1529	hidnplayr	13	;; GNU GENERAL PUBLIC LICENSE ;;
		14	;; Version 2, June 1991 ;;
		15	;; ;;
1159	hidnplayr	16	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		17
1206	hidnplayr	18	$Revision: 2995 $
1159	hidnplayr	19
1773	hidnplayr	20
2402	hidnplayr	21	struct SOCKET
1249	hidnplayr	22
2402	hidnplayr	23	NextPtr dd ? ; pointer to next socket in list
		24	PrevPtr dd ? ; pointer to previous socket in list
		25	Number dd ? ; socket number
1249	hidnplayr	26
2402	hidnplayr	27	mutex MUTEX
1249	hidnplayr	28
2402	hidnplayr	29	PID dd ? ; application process id
		30	Domain dd ? ; INET/UNIX/..
		31	Type dd ? ; RAW/STREAM/DGRAP
		32	Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP
		33	errorcode dd ?
2877	hidnplayr	34	device dd ?
1249	hidnplayr	35
2402	hidnplayr	36	options dd ?
		37	state dd ?
		38	backlog dw ? ; how many incomming connections that can be queued
1249	hidnplayr	39
2402	hidnplayr	40	snd_proc dd ?
		41	rcv_proc dd ?
1536	hidnplayr	42
2305	hidnplayr	43	ends
1249	hidnplayr	44
2402	hidnplayr	45	struct IP_SOCKET SOCKET
1254	hidnplayr	46
2995	hidnplayr	47	LocalIP rd 4 ; network byte order
		48	RemoteIP rd 4 ; network byte order
1318	hidnplayr	49
2305	hidnplayr	50	ends
1159	hidnplayr	51
2402	hidnplayr	52	struct TCP_SOCKET IP_SOCKET
1249	hidnplayr	53
2995	hidnplayr	54	LocalPort dw ? ; network byte order
		55	RemotePort dw ? ; network byte order
1514	hidnplayr	56
2402	hidnplayr	57	t_state dd ? ; TCB state
2955	hidnplayr	58	t_rxtshift db ?
		59	rb 3 ; align
2402	hidnplayr	60	t_rxtcur dd ?
		61	t_dupacks dd ?
		62	t_maxseg dd ?
		63	t_force dd ?
		64	t_flags dd ?
1514	hidnplayr	65
		66	;---------------
		67	; RFC783 page 21
		68
		69	; send sequence
2402	hidnplayr	70	SND_UNA dd ? ; sequence number of unack'ed sent Packets
		71	SND_NXT dd ? ; next send sequence number to use
2890	hidnplayr	72	SND_UP dd ? ; urgent pointer
2402	hidnplayr	73	SND_WL1 dd ? ; window minus one
		74	SND_WL2 dd ? ;
		75	ISS dd ? ; initial send sequence number
		76	SND_WND dd ? ; send window
1514	hidnplayr	77
		78	; receive sequence
2957	hidnplayr	79	RCV_WND dd ? ; receive window
2402	hidnplayr	80	RCV_NXT dd ? ; next receive sequence number to use
2890	hidnplayr	81	RCV_UP dd ? ; urgent pointer
2402	hidnplayr	82	IRS dd ? ; initial receive sequence number
1514	hidnplayr	83
		84	;---------------------
		85	; Additional variables
		86
		87	; receive variables
2402	hidnplayr	88	RCV_ADV dd ?
1514	hidnplayr	89
		90	; retransmit variables
2402	hidnplayr	91	SND_MAX dd ?
1514	hidnplayr	92
		93	; congestion control
2402	hidnplayr	94	SND_CWND dd ?
		95	SND_SSTHRESH dd ?
1514	hidnplayr	96
		97	;----------------------
		98	; Transmit timing stuff
2402	hidnplayr	99	t_idle dd ?
		100	t_rtt dd ?
		101	t_rtseq dd ?
		102	t_srtt dd ?
		103	t_rttvar dd ?
		104	t_rttmin dd ?
		105	max_sndwnd dd ?
1514	hidnplayr	106
		107	;-----------------
		108	; Out-of-band data
2402	hidnplayr	109	t_oobflags dd ?
		110	t_iobc dd ?
		111	t_softerror dd ?
1514	hidnplayr	112
		113
		114	;---------
2924	hidnplayr	115	; RFC 1323 ; the order of next 4 elements may not change
1514	hidnplayr	116
2402	hidnplayr	117	SND_SCALE db ?
		118	RCV_SCALE db ?
		119	requested_s_scale db ?
		120	request_r_scale db ?
1514	hidnplayr	121
2924	hidnplayr	122	ts_recent dd ? ; a copy of the most-recent valid timestamp from the other end
2402	hidnplayr	123	ts_recent_age dd ?
		124	last_ack_sent dd ?
1519	hidnplayr	125
2310	hidnplayr	126
1519	hidnplayr	127	;-------
		128	; Timers
2955	hidnplayr	129	timer_retransmission dd ? ; rexmt
		130	timer_persist dd ?
		131	timer_keepalive dd ? ; keepalive/syn timeout
		132	timer_timed_wait dd ? ; also used as 2msl timer
1519	hidnplayr	133
2890	hidnplayr	134	; extra
		135
2924	hidnplayr	136	ts_ecr dd ? ; timestamp echo reply
2937	hidnplayr	137	ts_val dd ?
		138	temp_bits db ?
2890	hidnplayr	139
2305	hidnplayr	140	ends
1249	hidnplayr	141
2402	hidnplayr	142	struct UDP_SOCKET IP_SOCKET
1249	hidnplayr	143
2995	hidnplayr	144	LocalPort dw ? ; network byte order
		145	RemotePort dw ? ; network byte order
2402	hidnplayr	146	firstpacket db ?
1249	hidnplayr	147
2305	hidnplayr	148	ends
1249	hidnplayr	149
		150
2402	hidnplayr	151	struct ICMP_SOCKET IP_SOCKET
1249	hidnplayr	152
2402	hidnplayr	153	Identifier dw ?
1514	hidnplayr	154
2305	hidnplayr	155	ends
1514	hidnplayr	156
		157
2402	hidnplayr	158	struct RING_BUFFER
2311	hidnplayr	159
2402	hidnplayr	160	start_ptr dd ? ; Pointer to start of buffer
		161	end_ptr dd ? ; pointer to end of buffer
		162	read_ptr dd ? ; Read pointer
		163	write_ptr dd ? ; Write pointer
		164	size dd ? ; Number of bytes buffered
2311	hidnplayr	165
2305	hidnplayr	166	ends
1514	hidnplayr	167
2402	hidnplayr	168	struct STREAM_SOCKET TCP_SOCKET
1529	hidnplayr	169
2402	hidnplayr	170	rcv RING_BUFFER
		171	snd RING_BUFFER
1529	hidnplayr	172
2305	hidnplayr	173	ends
1529	hidnplayr	174
2402	hidnplayr	175	struct socket_queue_entry
1529	hidnplayr	176
2402	hidnplayr	177	data_ptr dd ?
		178	buf_ptr dd ?
		179	data_size dd ?
1529	hidnplayr	180
1274	hidnplayr	181	ends
		182
1514	hidnplayr	183
2614	hidnplayr	184	SOCKETBUFFSIZE = 4096 ; in bytes
1514	hidnplayr	185
2614	hidnplayr	186	SOCKET_QUEUE_SIZE = 10 ; maximum number ofincoming packets queued for 1 socket
1514	hidnplayr	187	; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start
2614	hidnplayr	188	SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue)
1249	hidnplayr	189
1159	hidnplayr	190	uglobal
2402	hidnplayr	191	net_sockets rd 4
		192	last_socket_num dd ?
		193	last_UDP_port dw ? ; These values give the number of the last used ephemeral port
		194	last_TCP_port dw ? ;
1159	hidnplayr	195	endg
		196
		197
1257	hidnplayr	198	;-----------------------------------------------------------------
1159	hidnplayr	199	;
		200	; SOCKET_init
		201	;
1257	hidnplayr	202	;-----------------------------------------------------------------
2402	hidnplayr	203	macro SOCKET_init {
1159	hidnplayr	204
2402	hidnplayr	205	xor eax, eax
		206	mov edi, net_sockets
		207	mov ecx, 5
		208	rep stosd
1159	hidnplayr	209
1529	hidnplayr	210	@@:
2402	hidnplayr	211	pseudo_random eax
		212	cmp ax, MIN_EPHEMERAL_PORT
		213	jb @r
		214	cmp ax, MAX_EPHEMERAL_PORT
		215	ja @r
2995	hidnplayr	216	xchg al, ah
2402	hidnplayr	217	mov [last_UDP_port], ax
1529	hidnplayr	218
		219	@@:
2402	hidnplayr	220	pseudo_random eax
		221	cmp ax, MIN_EPHEMERAL_PORT
		222	jb @r
		223	cmp ax, MAX_EPHEMERAL_PORT
		224	ja @r
2995	hidnplayr	225	xchg al, ah
2402	hidnplayr	226	mov [last_TCP_port], ax
1529	hidnplayr	227
		228	}
		229
		230
1257	hidnplayr	231	;-----------------------------------------------------------------
1159	hidnplayr	232	;
2994	hidnplayr	233	; SOCKET_block
		234	;
		235	;-----------------------------------------------------------------
		236	macro SOCKET_block socket, loop, done {
		237
		238	test [socket + SOCKET.options], SO_BLOCK ; Is this a blocking socket?
		239	jz done ; No, return immediately
		240
		241	push esi
		242	mov esi, 5 ; yes, wait for event
		243	call delay_ms
		244	pop esi
		245
		246	jmp loop
		247
		248	}
		249
		250
		251	;-----------------------------------------------------------------
		252	;
1159	hidnplayr	253	; Socket API (function 74)
		254	;
1257	hidnplayr	255	;-----------------------------------------------------------------
2614	hidnplayr	256	align 4
		257	sys_socket:
		258
		259	cmp ebx, 255
		260	jz SOCKET_debug
		261
		262	cmp ebx, .number
		263	ja s_error
		264	jmp dword [.table + 4*ebx]
		265
		266	.table:
2402	hidnplayr	267	dd SOCKET_open ; 0
		268	dd SOCKET_close ; 1
		269	dd SOCKET_bind ; 2
		270	dd SOCKET_listen ; 3
		271	dd SOCKET_connect ; 4
		272	dd SOCKET_accept ; 5
		273	dd SOCKET_send ; 6
		274	dd SOCKET_receive ; 7
		275	dd SOCKET_set_opt ; 8
		276	dd SOCKET_get_opt ; 9
2614	hidnplayr	277	.number = ($ - .table) / 4 - 1
2301	hidnplayr	278
1529	hidnplayr	279	s_error:
2402	hidnplayr	280	DEBUGF 1,"socket error\n"
		281	mov dword [esp+32], -1
1529	hidnplayr	282
2402	hidnplayr	283	ret
1529	hidnplayr	284
1159	hidnplayr	285
2301	hidnplayr	286
1257	hidnplayr	287	;-----------------------------------------------------------------
1159	hidnplayr	288	;
		289	; SOCKET_open
		290	;
		291	; IN: domain in ecx
		292	; type in edx
1196	hidnplayr	293	; protocol in esi
1159	hidnplayr	294	; OUT: eax is socket num, -1 on error
		295	;
1257	hidnplayr	296	;-----------------------------------------------------------------
1206	hidnplayr	297	align 4
1514	hidnplayr	298	SOCKET_open:
1159	hidnplayr	299
2891	hidnplayr	300	DEBUGF 1,"SOCKET_open: domain=%u type=%u protocol=%x\n", ecx, edx, esi
1159	hidnplayr	301
2402	hidnplayr	302	push ecx edx esi
		303	call SOCKET_alloc
		304	pop esi edx ecx
		305	jz s_error
1159	hidnplayr	306
2402	hidnplayr	307	mov [esp+32], edi ; return socketnumber
1542	hidnplayr	308
2402	hidnplayr	309	mov [eax + SOCKET.Domain], ecx
		310	mov [eax + SOCKET.Type], edx
		311	mov [eax + SOCKET.Protocol], esi
1159	hidnplayr	312
2402	hidnplayr	313	cmp ecx, AF_INET4
		314	jne .no_inet4
1529	hidnplayr	315
2402	hidnplayr	316	cmp edx, SOCK_DGRAM
		317	je .udp
1536	hidnplayr	318
2402	hidnplayr	319	cmp edx, SOCK_STREAM
		320	je .tcp
1529	hidnplayr	321
2402	hidnplayr	322	cmp edx, SOCK_RAW
		323	je .raw
1541	hidnplayr	324
1536	hidnplayr	325	.no_inet4:
2931	hidnplayr	326	cmp ecx, AF_PPP
		327	jne .no_ppp
		328
		329	cmp esi, PPP_PROTO_ETHERNET
		330	je .pppoe
		331
		332	.no_ppp:
2402	hidnplayr	333	ret
1536	hidnplayr	334
1542	hidnplayr	335	align 4
		336	.raw:
2402	hidnplayr	337	test esi, esi ; IP_PROTO_IP
		338	jz .ip
1529	hidnplayr	339
2402	hidnplayr	340	cmp esi, IP_PROTO_ICMP
		341	je .icmp
1529	hidnplayr	342
2402	hidnplayr	343	cmp esi, IP_PROTO_UDP
		344	je .udp
1533	hidnplayr	345
2402	hidnplayr	346	cmp esi, IP_PROTO_TCP
		347	je .tcp
1536	hidnplayr	348
2402	hidnplayr	349	ret
1159	hidnplayr	350
1542	hidnplayr	351	align 4
1536	hidnplayr	352	.udp:
2402	hidnplayr	353	mov [eax + SOCKET.Protocol], IP_PROTO_UDP
		354	mov [eax + SOCKET.snd_proc], SOCKET_send_udp
		355	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		356	ret
1529	hidnplayr	357
1542	hidnplayr	358	align 4
		359	.tcp:
2402	hidnplayr	360	mov [eax + SOCKET.Protocol], IP_PROTO_TCP
		361	mov [eax + SOCKET.snd_proc], SOCKET_send_tcp
		362	mov [eax + SOCKET.rcv_proc], SOCKET_receive_tcp
1838	hidnplayr	363
2612	hidnplayr	364	TCP_init_socket eax
2402	hidnplayr	365	ret
1529	hidnplayr	366
		367
1543	hidnplayr	368	align 4
		369	.ip:
2402	hidnplayr	370	mov [eax + SOCKET.snd_proc], SOCKET_send_ip
		371	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		372	ret
1541	hidnplayr	373
1542	hidnplayr	374
		375	align 4
1541	hidnplayr	376	.icmp:
2402	hidnplayr	377	mov [eax + SOCKET.snd_proc], SOCKET_send_icmp
		378	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		379	ret
1541	hidnplayr	380
2931	hidnplayr	381	align 4
		382	.pppoe:
		383	push eax
		384	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		385	pop eax
1541	hidnplayr	386
2931	hidnplayr	387	mov [eax + SOCKET.snd_proc], SOCKET_send_pppoe
		388	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		389	ret
1541	hidnplayr	390
2931	hidnplayr	391
1257	hidnplayr	392	;-----------------------------------------------------------------
1159	hidnplayr	393	;
		394	; SOCKET_bind
		395	;
		396	; IN: socket number in ecx
		397	; pointer to sockaddr struct in edx
		398	; length of that struct in esi
		399	; OUT: 0 on success
		400	;
1257	hidnplayr	401	;-----------------------------------------------------------------
1206	hidnplayr	402	align 4
1514	hidnplayr	403	SOCKET_bind:
1159	hidnplayr	404
2891	hidnplayr	405	DEBUGF 1,"SOCKET_bind: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi
1159	hidnplayr	406
2402	hidnplayr	407	call SOCKET_num_to_ptr
		408	jz s_error
1159	hidnplayr	409
2402	hidnplayr	410	cmp esi, 2
		411	jb s_error
1159	hidnplayr	412
2402	hidnplayr	413	cmp word [edx], AF_INET4
		414	je .af_inet4
1159	hidnplayr	415
2402	hidnplayr	416	cmp word [edx], AF_UNIX
		417	je .af_unix
1249	hidnplayr	418
2402	hidnplayr	419	jmp s_error
1249	hidnplayr	420
		421	.af_unix:
2402	hidnplayr	422	; TODO: write code here
1249	hidnplayr	423
2402	hidnplayr	424	mov dword [esp+32], 0
		425	ret
1249	hidnplayr	426
1159	hidnplayr	427	.af_inet4:
		428
2402	hidnplayr	429	cmp esi, 6
		430	jb s_error
1159	hidnplayr	431
2622	hidnplayr	432	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		433	je .udp
1159	hidnplayr	434
2622	hidnplayr	435	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		436	je .tcp
1159	hidnplayr	437
2622	hidnplayr	438	jmp s_error
		439
		440	.tcp:
		441	.udp:
		442
		443	mov ebx, [edx + 4] ; First, fill in the IP
		444	test ebx, ebx ; If IP is 0, use default
		445	jnz @f
		446	mov ebx, [NET_DEFAULT]
		447	mov ebx, [IP_LIST + 4*ebx]
		448	@@:
		449	mov [eax + IP_SOCKET.LocalIP], ebx
		450
2995	hidnplayr	451	mov bx, [edx + 2] ; Now fill in the local port if it's still available
2622	hidnplayr	452	call SOCKET_check_port
		453	jz s_error ; ZF is set by socket_check_port, on error
		454
2891	hidnplayr	455	DEBUGF 1,"SOCKET_bind: local ip=%u.%u.%u.%u\n",\
2402	hidnplayr	456	[eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\
		457	[eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1
1159	hidnplayr	458
2402	hidnplayr	459	mov dword [esp+32], 0
		460	ret
1159	hidnplayr	461
		462
		463
		464
1257	hidnplayr	465	;-----------------------------------------------------------------
1159	hidnplayr	466	;
		467	; SOCKET_connect
		468	;
		469	; IN: socket number in ecx
		470	; pointer to sockaddr struct in edx
		471	; length of that struct in esi
		472	; OUT: 0 on success
		473	;
1257	hidnplayr	474	;-----------------------------------------------------------------
1159	hidnplayr	475	align 4
1514	hidnplayr	476	SOCKET_connect:
1159	hidnplayr	477
2891	hidnplayr	478	DEBUGF 1,"SOCKET_connect: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi
1159	hidnplayr	479
2402	hidnplayr	480	call SOCKET_num_to_ptr
		481	jz s_error
1159	hidnplayr	482
2402	hidnplayr	483	cmp esi, 8
		484	jb s_error
1159	hidnplayr	485
2402	hidnplayr	486	cmp word [edx], AF_INET4
		487	je .af_inet4
1159	hidnplayr	488
2402	hidnplayr	489	jmp s_error
1159	hidnplayr	490
		491	.af_inet4:
2402	hidnplayr	492	cmp [eax + IP_SOCKET.LocalIP], 0
		493	jne @f
		494	push [IP_LIST]
		495	pop [eax + IP_SOCKET.LocalIP]
1543	hidnplayr	496	@@:
1159	hidnplayr	497
2402	hidnplayr	498	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		499	je .udp
1159	hidnplayr	500
2402	hidnplayr	501	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		502	je .tcp
1159	hidnplayr	503
2402	hidnplayr	504	cmp [eax + SOCKET.Protocol], IP_PROTO_IP
		505	je .ip
1541	hidnplayr	506
2402	hidnplayr	507	cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP
		508	je .ip
1542	hidnplayr	509
2402	hidnplayr	510	jmp s_error
1159	hidnplayr	511
1542	hidnplayr	512	align 4
1254	hidnplayr	513	.udp:
2402	hidnplayr	514	pusha
		515	lea ecx, [eax + SOCKET.mutex]
		516	call mutex_lock
		517	popa
1543	hidnplayr	518
2402	hidnplayr	519	pushw [edx + 2]
		520	pop [eax + UDP_SOCKET.RemotePort]
1543	hidnplayr	521
2402	hidnplayr	522	pushd [edx + 4]
		523	pop [eax + IP_SOCKET.RemoteIP]
1543	hidnplayr	524
2402	hidnplayr	525	cmp [eax + UDP_SOCKET.LocalPort], 0
		526	jne @f
		527	call SOCKET_find_port
1543	hidnplayr	528	@@:
		529
2402	hidnplayr	530	mov [eax + UDP_SOCKET.firstpacket], 0
1159	hidnplayr	531
2402	hidnplayr	532	push eax
		533	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		534	pop eax
1159	hidnplayr	535
2402	hidnplayr	536	lea ecx, [eax + SOCKET.mutex]
		537	call mutex_unlock
1159	hidnplayr	538
2402	hidnplayr	539	mov dword [esp+32], 0
		540	ret
		541
1542	hidnplayr	542	align 4
1254	hidnplayr	543	.tcp:
2402	hidnplayr	544	pusha
		545	lea ecx, [eax + SOCKET.mutex]
		546	call mutex_lock
		547	popa
1159	hidnplayr	548
2402	hidnplayr	549	pushw [edx + 2]
		550	pop [eax + TCP_SOCKET.RemotePort]
1159	hidnplayr	551
2402	hidnplayr	552	pushd [edx + 4]
		553	pop [eax + IP_SOCKET.RemoteIP]
1159	hidnplayr	554
2402	hidnplayr	555	cmp [eax + TCP_SOCKET.LocalPort], 0
		556	jne @f
		557	call SOCKET_find_port
1543	hidnplayr	558	@@:
1159	hidnplayr	559
2402	hidnplayr	560	mov [eax + TCP_SOCKET.timer_persist], 0
		561	mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT
2612	hidnplayr	562
2402	hidnplayr	563	push [TCP_sequence_num]
		564	add [TCP_sequence_num], 6400
		565	pop [eax + TCP_SOCKET.ISS]
		566	mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init
1519	hidnplayr	567
2612	hidnplayr	568
2402	hidnplayr	569	TCP_sendseqinit eax
1529	hidnplayr	570
1543	hidnplayr	571	; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer
1533	hidnplayr	572
2402	hidnplayr	573	mov ebx, eax
1159	hidnplayr	574
2402	hidnplayr	575	lea eax, [ebx + STREAM_SOCKET.snd]
		576	call SOCKET_ring_create
1543	hidnplayr	577
2402	hidnplayr	578	lea eax, [ebx + STREAM_SOCKET.rcv]
		579	call SOCKET_ring_create
1543	hidnplayr	580
2402	hidnplayr	581	pusha
2939	hidnplayr	582	lea ecx, [ebx + SOCKET.mutex]
2402	hidnplayr	583	call mutex_unlock
		584	popa
1733	hidnplayr	585
2402	hidnplayr	586	mov eax, ebx
		587	call TCP_output
1733	hidnplayr	588
2994	hidnplayr	589	;;; TODO: wait for successfull connection if blocking socket
		590
2402	hidnplayr	591	mov dword [esp+32], 0
		592	ret
1159	hidnplayr	593
1542	hidnplayr	594	align 4
		595	.ip:
2402	hidnplayr	596	pusha
		597	lea ecx, [eax + SOCKET.mutex]
		598	call mutex_lock
		599	popa
1543	hidnplayr	600
2402	hidnplayr	601	pushd [edx + 4]
		602	pop [eax + IP_SOCKET.RemoteIP]
1159	hidnplayr	603
2402	hidnplayr	604	push eax
		605	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		606	pop eax
1543	hidnplayr	607
2402	hidnplayr	608	lea ecx, [eax + SOCKET.mutex]
		609	call mutex_unlock
1541	hidnplayr	610
2402	hidnplayr	611	mov dword [esp+32], 0
		612	ret
1541	hidnplayr	613
2402	hidnplayr	614
1257	hidnplayr	615	;-----------------------------------------------------------------
1159	hidnplayr	616	;
		617	; SOCKET_listen
		618	;
		619	; IN: socket number in ecx
		620	; backlog in edx
		621	; OUT: eax is socket num, -1 on error
		622	;
1257	hidnplayr	623	;-----------------------------------------------------------------
1206	hidnplayr	624	align 4
1514	hidnplayr	625	SOCKET_listen:
1159	hidnplayr	626
2891	hidnplayr	627	DEBUGF 1,"SOCKET_listen: socknum=%u backlog=%u\n", ecx, edx
1159	hidnplayr	628
2402	hidnplayr	629	call SOCKET_num_to_ptr
		630	jz s_error
1159	hidnplayr	631
2402	hidnplayr	632	cmp [eax + SOCKET.Domain], AF_INET4
		633	jne s_error
1254	hidnplayr	634
2402	hidnplayr	635	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		636	jne s_error
1254	hidnplayr	637
2402	hidnplayr	638	cmp [eax + TCP_SOCKET.LocalPort], 0
		639	je s_error
1514	hidnplayr	640
2402	hidnplayr	641	cmp [eax + IP_SOCKET.LocalIP], 0
		642	jne @f
		643	push [IP_LIST]
		644	pop [eax + IP_SOCKET.LocalIP]
1543	hidnplayr	645	@@:
		646
2402	hidnplayr	647	cmp edx, MAX_backlog
		648	jbe @f
		649	mov edx, MAX_backlog
1543	hidnplayr	650	@@:
1159	hidnplayr	651
2402	hidnplayr	652	mov [eax + SOCKET.backlog], dx
		653	or [eax + SOCKET.options], SO_ACCEPTCON
		654	mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN
2880	hidnplayr	655	mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer
1159	hidnplayr	656
2402	hidnplayr	657	push eax
		658	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue
		659	pop eax
1543	hidnplayr	660
2402	hidnplayr	661	mov dword [esp+32], 0
1514	hidnplayr	662
2402	hidnplayr	663	ret
1159	hidnplayr	664
		665
1257	hidnplayr	666	;-----------------------------------------------------------------
1159	hidnplayr	667	;
		668	; SOCKET_accept
		669	;
		670	; IN: socket number in ecx
		671	; addr in edx
		672	; addrlen in esi
		673	; OUT: eax is socket num, -1 on error
		674	;
1257	hidnplayr	675	;-----------------------------------------------------------------
1206	hidnplayr	676	align 4
1514	hidnplayr	677	SOCKET_accept:
1159	hidnplayr	678
2891	hidnplayr	679	DEBUGF 1,"SOCKET_accept: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi
1159	hidnplayr	680
2402	hidnplayr	681	call SOCKET_num_to_ptr
		682	jz s_error
1159	hidnplayr	683
2402	hidnplayr	684	test [eax + SOCKET.options], SO_ACCEPTCON
		685	jz s_error
1543	hidnplayr	686
2402	hidnplayr	687	cmp [eax + SOCKET.Domain], AF_INET4
		688	jne s_error
1249	hidnplayr	689
2402	hidnplayr	690	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		691	jne s_error
1249	hidnplayr	692
2994	hidnplayr	693	.loop:
		694	get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .block
		695
		696	; Ok, we got a socket ptr
2572	hidnplayr	697	mov eax, [esi]
1249	hidnplayr	698
2572	hidnplayr	699	; Change PID to that of the current process
		700	mov ebx, [TASK_BASE]
		701	mov ebx, [ebx + TASKDATA.pid]
		702	mov [eax + SOCKET.PID], ebx
		703
2994	hidnplayr	704	; Convert it to a socket number
2402	hidnplayr	705	call SOCKET_ptr_to_num
		706	jz s_error
2994	hidnplayr	707	; and return it to caller
2402	hidnplayr	708	mov [esp+32], eax
		709	ret
1514	hidnplayr	710
2994	hidnplayr	711	.block:
		712	SOCKET_block eax, .loop, s_error
1159	hidnplayr	713
1257	hidnplayr	714	;-----------------------------------------------------------------
1159	hidnplayr	715	;
		716	; SOCKET_close
		717	;
		718	; IN: socket number in ecx
		719	; OUT: eax is socket num, -1 on error
		720	;
1257	hidnplayr	721	;-----------------------------------------------------------------
1206	hidnplayr	722	align 4
1514	hidnplayr	723	SOCKET_close:
1159	hidnplayr	724
2891	hidnplayr	725	DEBUGF 1,"SOCKET_close: %u\n", ecx
1159	hidnplayr	726
2402	hidnplayr	727	call SOCKET_num_to_ptr
		728	jz s_error
1159	hidnplayr	729
2402	hidnplayr	730	cmp [eax + SOCKET.Domain], AF_INET4
		731	jne s_error
1159	hidnplayr	732
2402	hidnplayr	733	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		734	je .free
1159	hidnplayr	735
2402	hidnplayr	736	cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP
		737	je .free
1159	hidnplayr	738
2402	hidnplayr	739	cmp [eax + SOCKET.Protocol], IP_PROTO_IP
		740	je .free
1542	hidnplayr	741
2402	hidnplayr	742	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		743	je .tcp
1159	hidnplayr	744
2402	hidnplayr	745	jmp s_error
1159	hidnplayr	746
		747	.tcp:
2402	hidnplayr	748	cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED
		749	jb .free
1318	hidnplayr	750
2890	hidnplayr	751	call TCP_usrclosed
2891	hidnplayr	752	call TCP_output ;;;; Fixme: is this nescessary??
2994	hidnplayr	753
		754	;;; TODO: wait for successfull termination if blocking socket
2402	hidnplayr	755	mov dword [esp+32], 0
1159	hidnplayr	756
2402	hidnplayr	757	ret
1159	hidnplayr	758
1514	hidnplayr	759	.free:
2402	hidnplayr	760	call SOCKET_free
		761	mov dword [esp+32], 0
1159	hidnplayr	762
2402	hidnplayr	763	ret
1159	hidnplayr	764
		765
1257	hidnplayr	766	;-----------------------------------------------------------------
1159	hidnplayr	767	;
		768	; SOCKET_receive
		769	;
		770	; IN: socket number in ecx
1249	hidnplayr	771	; addr to buffer in edx
		772	; length of buffer in esi
1159	hidnplayr	773	; flags in edi
		774	; OUT: eax is number of bytes copied, -1 on error
		775	;
1257	hidnplayr	776	;-----------------------------------------------------------------
1206	hidnplayr	777	align 4
1514	hidnplayr	778	SOCKET_receive:
1159	hidnplayr	779
2891	hidnplayr	780	DEBUGF 1,"SOCKET_receive: socknum=%u bufaddr=%x buflength=%u flags=%x\n", ecx, edx, esi, edi
1514	hidnplayr	781
2402	hidnplayr	782	call SOCKET_num_to_ptr
		783	jz s_error
1159	hidnplayr	784
2402	hidnplayr	785	jmp [eax + SOCKET.rcv_proc]
1533	hidnplayr	786
1536	hidnplayr	787
		788	align 4
1541	hidnplayr	789	SOCKET_receive_dgram:
1536	hidnplayr	790
2402	hidnplayr	791	DEBUGF 1,"SOCKET_receive: DGRAM\n"
1536	hidnplayr	792
2402	hidnplayr	793	mov ebx, esi
		794	mov edi, edx ; addr to buffer
1159	hidnplayr	795
2994	hidnplayr	796	.loop:
		797	get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, .block ; destroys esi and ecx
1536	hidnplayr	798
2402	hidnplayr	799	mov ecx, [esi + socket_queue_entry.data_size]
2891	hidnplayr	800	DEBUGF 1,"SOCKET_receive: %u bytes data\n", ecx
1159	hidnplayr	801
2402	hidnplayr	802	cmp ecx, ebx
		803	ja .too_small
1514	hidnplayr	804
2402	hidnplayr	805	push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later
		806	mov esi, [esi + socket_queue_entry.data_ptr]
2891	hidnplayr	807	DEBUGF 1,"SOCKET_receive: Source buffer=%x real addr=%x\n", [esp], esi
2402	hidnplayr	808	mov [esp+32+4], ecx ; return number of bytes copied
1159	hidnplayr	809
1514	hidnplayr	810	; copy the data
2402	hidnplayr	811	shr ecx, 1
		812	jnc .nb
		813	movsb
1536	hidnplayr	814	.nb:
2402	hidnplayr	815	shr ecx, 1
		816	jnc .nw
		817	movsw
1536	hidnplayr	818	.nw:
2402	hidnplayr	819	test ecx, ecx
		820	jz .nd
		821	rep movsd
1536	hidnplayr	822	.nd:
1159	hidnplayr	823
2402	hidnplayr	824	call kernel_free ; remove the packet
		825	ret
1514	hidnplayr	826
1536	hidnplayr	827	.too_small:
1533	hidnplayr	828
2891	hidnplayr	829	DEBUGF 1,"SOCKET_receive: Buffer too small\n"
2402	hidnplayr	830	jmp s_error
1536	hidnplayr	831
2994	hidnplayr	832	.block:
		833	SOCKET_block eax, .loop, s_error
		834
		835
1536	hidnplayr	836	align 4
		837	SOCKET_receive_tcp:
		838
2402	hidnplayr	839	DEBUGF 1,"SOCKET_receive: TCP\n"
1536	hidnplayr	840
2402	hidnplayr	841	mov ecx, esi
		842	mov edi, edx
2994	hidnplayr	843	xor edx, edx
2402	hidnplayr	844	add eax, STREAM_SOCKET.rcv
2994	hidnplayr	845	.loop: ;;;; FIXME: ecx!
2402	hidnplayr	846	call SOCKET_ring_read
2994	hidnplayr	847	test ecx, ecx
		848	jz .block
2402	hidnplayr	849	call SOCKET_ring_free
1533	hidnplayr	850
2402	hidnplayr	851	mov [esp+32], ecx ; return number of bytes copied
		852	ret
1159	hidnplayr	853
2994	hidnplayr	854	.block:
		855	SOCKET_block (eax - STREAM_SOCKET.rcv), .loop, s_error
1159	hidnplayr	856
2994	hidnplayr	857
1257	hidnplayr	858	;-----------------------------------------------------------------
1159	hidnplayr	859	;
		860	; SOCKET_send
		861	;
		862	;
		863	; IN: socket number in ecx
1206	hidnplayr	864	; pointer to data in edx
		865	; datalength in esi
1159	hidnplayr	866	; flags in edi
		867	; OUT: -1 on error
		868	;
1257	hidnplayr	869	;-----------------------------------------------------------------
1206	hidnplayr	870	align 4
1514	hidnplayr	871	SOCKET_send:
1159	hidnplayr	872
2891	hidnplayr	873	DEBUGF 1,"SOCKET_send: socknum=%u data ptr=%x length=%u flags=%x\n", ecx, edx, esi, edi
1159	hidnplayr	874
2402	hidnplayr	875	call SOCKET_num_to_ptr
		876	jz s_error
1159	hidnplayr	877
2402	hidnplayr	878	mov ecx, esi
		879	mov esi, edx
1763	hidnplayr	880
2402	hidnplayr	881	jmp [eax + SOCKET.snd_proc]
1206	hidnplayr	882
		883
1536	hidnplayr	884	align 4
		885	SOCKET_send_udp:
1529	hidnplayr	886
2402	hidnplayr	887	DEBUGF 1,"SOCKET_send: UDP\n"
1159	hidnplayr	888
2573	hidnplayr	889	mov [esp+32], ecx
2402	hidnplayr	890	call UDP_output
2573	hidnplayr	891	cmp eax, -1
		892	je s_error
2402	hidnplayr	893	ret
1159	hidnplayr	894
		895
1536	hidnplayr	896	align 4
		897	SOCKET_send_tcp:
1254	hidnplayr	898
2402	hidnplayr	899	DEBUGF 1,"SOCKET_send: TCP\n"
1254	hidnplayr	900
2402	hidnplayr	901	push eax
		902	add eax, STREAM_SOCKET.snd
		903	call SOCKET_ring_write
		904	pop eax
1536	hidnplayr	905
2621	hidnplayr	906	mov [esp+32], ecx
		907
2402	hidnplayr	908	call TCP_output
		909	ret
1159	hidnplayr	910
1249	hidnplayr	911
1543	hidnplayr	912	align 4
		913	SOCKET_send_ip:
1249	hidnplayr	914
2891	hidnplayr	915	DEBUGF 1,"SOCKET_send: IPv4\n"
1543	hidnplayr	916
2573	hidnplayr	917	mov [esp+32], ecx
2402	hidnplayr	918	call IPv4_output_raw
2573	hidnplayr	919	cmp eax, -1
		920	je s_error
2402	hidnplayr	921	ret
1543	hidnplayr	922
2573	hidnplayr	923
1541	hidnplayr	924	align 4
		925	SOCKET_send_icmp:
1249	hidnplayr	926
2402	hidnplayr	927	DEBUGF 1,"SOCKET_send: ICMP\n"
1541	hidnplayr	928
2573	hidnplayr	929	mov [esp+32], ecx
2402	hidnplayr	930	call ICMP_output_raw
2573	hidnplayr	931	cmp eax, -1
		932	je s_error
2402	hidnplayr	933	ret
1541	hidnplayr	934
		935
2931	hidnplayr	936	align 4
		937	SOCKET_send_pppoe:
1541	hidnplayr	938
2931	hidnplayr	939	DEBUGF 1,"SOCKET_send: PPPoE\n"
1541	hidnplayr	940
2931	hidnplayr	941	mov [esp+32], ecx
		942	mov ebx, [eax + SOCKET.device]
		943
		944	call PPPoE_discovery_output
		945	cmp eax, -1
		946	je s_error
		947	ret
		948
		949
		950
		951
1257	hidnplayr	952	;-----------------------------------------------------------------
1256	clevermous	953	;
1257	hidnplayr	954	; SOCKET_get_options
1256	clevermous	955	;
1514	hidnplayr	956	; IN: ecx = socket number
		957	; edx = pointer to the options:
1257	hidnplayr	958	; dd level, optname, optval, optlen
1256	clevermous	959	; OUT: -1 on error
		960	;
		961	; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP.
		962	; TODO: find best way to notify that send()'ed data were acknowledged
1831	hidnplayr	963	; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*.
1256	clevermous	964	;
1257	hidnplayr	965	;-----------------------------------------------------------------
		966	align 4
1514	hidnplayr	967	SOCKET_get_opt:
1257	hidnplayr	968
2402	hidnplayr	969	DEBUGF 1,"SOCKET_get_opt\n"
1514	hidnplayr	970
2402	hidnplayr	971	call SOCKET_num_to_ptr
		972	jz s_error
1514	hidnplayr	973
2402	hidnplayr	974	cmp dword [edx], IP_PROTO_TCP
		975	jne s_error
		976	cmp dword [edx+4], -2
		977	je @f
		978	cmp dword [edx+4], -3
		979	jne s_error
1299	clevermous	980	@@:
1514	hidnplayr	981	; mov eax, [edx+12]
		982	; test eax, eax
		983	; jz .fail
		984	; cmp dword [eax], 4
		985	; mov dword [eax], 4
		986	; jb .fail
		987	; stdcall net_socket_num_to_addr, ecx
		988	; test eax, eax
		989	; jz .fail
		990	; ; todo: check that eax is really TCP socket
		991	; mov ecx, [eax + TCP_SOCKET.last_ack_number]
		992	; cmp dword [edx+4], -2
		993	; jz @f
		994	; mov ecx, [eax + TCP_SOCKET.state]
1299	clevermous	995	@@:
2402	hidnplayr	996	mov eax, [edx+8]
		997	test eax, eax
		998	jz @f
		999	mov [eax], ecx
1256	clevermous	1000	@@:
2402	hidnplayr	1001	mov dword [esp+32], 0
		1002	ret
1159	hidnplayr	1003
		1004
1529	hidnplayr	1005
2731	hidnplayr	1006	;-----------------------------------------------------------------
		1007	;
		1008	; SOCKET_set_options
		1009	;
		1010	; IN: ecx = socket number
		1011	; edx = pointer to the options:
2877	hidnplayr	1012	; dd level, optname, optlen, optval
2731	hidnplayr	1013	; OUT: -1 on error
		1014	;
		1015	;-----------------------------------------------------------------
1542	hidnplayr	1016	align 4
		1017	SOCKET_set_opt:
		1018
2731	hidnplayr	1019	DEBUGF 1,"SOCKET_set_opt\n"
		1020
		1021	call SOCKET_num_to_ptr
		1022	jz s_error
		1023
2877	hidnplayr	1024	cmp dword [edx], SOL_SOCKET
		1025	jne s_error
2731	hidnplayr	1026
2877	hidnplayr	1027	cmp dword [edx+4], SO_BINDTODEVICE
		1028	je .bind
2731	hidnplayr	1029
2877	hidnplayr	1030	jmp s_error
		1031
		1032	.bind:
		1033	cmp dword [edx+8], 0
		1034	je .unbind
		1035
		1036	movzx edx, byte [edx + 9]
		1037	cmp edx, MAX_NET_DEVICES
		1038	ja s_error
		1039
		1040	mov edx, [NET_DRV_LIST + 4*edx]
		1041	test edx, edx
		1042	jz s_error
		1043	mov [eax + SOCKET.device], edx
		1044
2891	hidnplayr	1045	DEBUGF 1,"SOCKET_set_opt: Bound socket %x to device %x\n",eax, edx
2877	hidnplayr	1046
		1047	mov dword [esp+32], 0 ; success!
2402	hidnplayr	1048	ret
1542	hidnplayr	1049
2877	hidnplayr	1050	.unbind:
		1051	mov [eax + SOCKET.device], 0
1542	hidnplayr	1052
2877	hidnplayr	1053	mov dword [esp+32], 0 ; success!
		1054	ret
1542	hidnplayr	1055
2877	hidnplayr	1056
		1057
1257	hidnplayr	1058	;-----------------------------------------------------------------
1206	hidnplayr	1059	;
1529	hidnplayr	1060	; SOCKET_debug
		1061	;
		1062	; Copies socket variables to application buffer
		1063	;
		1064	; IN: ecx = socket number
		1065	; edx = pointer to buffer
		1066	;
		1067	; OUT: -1 on error
		1068	;-----------------------------------------------------------------
		1069	align 4
		1070	SOCKET_debug:
		1071
2891	hidnplayr	1072	DEBUGF 1,"SOCKET_debug\n"
1529	hidnplayr	1073
2402	hidnplayr	1074	call SOCKET_num_to_ptr
		1075	jz s_error
1529	hidnplayr	1076
2402	hidnplayr	1077	mov esi, eax
		1078	mov edi, edx
		1079	mov ecx, SOCKETBUFFSIZE/4
		1080	rep movsd
1529	hidnplayr	1081
2402	hidnplayr	1082	mov dword [esp+32], 0
		1083	ret
1529	hidnplayr	1084
		1085
		1086	;-----------------------------------------------------------------
		1087	;
1514	hidnplayr	1088	; SOCKET_find_port
1206	hidnplayr	1089	;
1514	hidnplayr	1090	; Fills in the local port number for TCP and UDP sockets
		1091	; This procedure always works because the number of sockets is
		1092	; limited to a smaller number then the number of possible ports
1206	hidnplayr	1093	;
1514	hidnplayr	1094	; IN: eax = socket pointer
		1095	; OUT: /
1206	hidnplayr	1096	;
1257	hidnplayr	1097	;-----------------------------------------------------------------
1206	hidnplayr	1098	align 4
1514	hidnplayr	1099	SOCKET_find_port:
1159	hidnplayr	1100
2402	hidnplayr	1101	DEBUGF 1,"SOCKET_find_port\n"
1159	hidnplayr	1102
2402	hidnplayr	1103	push ebx esi ecx
1514	hidnplayr	1104
2402	hidnplayr	1105	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		1106	je .udp
1159	hidnplayr	1107
2402	hidnplayr	1108	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		1109	je .tcp
1159	hidnplayr	1110
2402	hidnplayr	1111	pop ecx esi ebx
		1112	ret
1514	hidnplayr	1113
1206	hidnplayr	1114	.udp:
2402	hidnplayr	1115	mov bx, [last_UDP_port]
		1116	call .findit
		1117	mov [last_UDP_port], bx
1206	hidnplayr	1118
2995	hidnplayr	1119	pop ecx esi ebx
		1120	ret
		1121
1206	hidnplayr	1122	.tcp:
2402	hidnplayr	1123	mov bx, [last_TCP_port]
		1124	call .findit
		1125	mov [last_TCP_port], bx
1206	hidnplayr	1126
2995	hidnplayr	1127	pop ecx esi ebx
		1128	ret
1206	hidnplayr	1129
2995	hidnplayr	1130
1514	hidnplayr	1131	.restart:
2995	hidnplayr	1132	mov bx, MIN_EPHEMERAL_PORT_N
1514	hidnplayr	1133	.findit:
2995	hidnplayr	1134	cmp bx, MAX_EPHEMERAL_PORT_N
		1135	je .restart
1206	hidnplayr	1136
2995	hidnplayr	1137	add bh, 1
		1138	adc bl, 0
1206	hidnplayr	1139
2402	hidnplayr	1140	call SOCKET_check_port
		1141	jz .findit
		1142	ret
1206	hidnplayr	1143
1257	hidnplayr	1144
		1145
		1146	;-----------------------------------------------------------------
1206	hidnplayr	1147	;
1542	hidnplayr	1148	; SOCKET_check_port (to be used with AF_INET only!)
1206	hidnplayr	1149	;
1514	hidnplayr	1150	; Checks if a local port number is unused
		1151	; If the proposed port number is unused, it is filled in in the socket structure
1206	hidnplayr	1152	;
1514	hidnplayr	1153	; IN: eax = socket ptr (to find out if its a TCP/UDP socket)
2995	hidnplayr	1154	; bx = proposed socket number (network byte order)
1206	hidnplayr	1155	;
2995	hidnplayr	1156	; OUT: ZF = set on error
1514	hidnplayr	1157	;
1257	hidnplayr	1158	;-----------------------------------------------------------------
1206	hidnplayr	1159	align 4
1514	hidnplayr	1160	SOCKET_check_port:
		1161
2891	hidnplayr	1162	DEBUGF 1,"SOCKET_check_port: "
1514	hidnplayr	1163
2402	hidnplayr	1164	mov ecx, [eax + SOCKET.Protocol]
2622	hidnplayr	1165	mov edx, [eax + IP_SOCKET.LocalIP]
2402	hidnplayr	1166	mov esi, net_sockets
1206	hidnplayr	1167
		1168	.next_socket:
2402	hidnplayr	1169	mov esi, [esi + SOCKET.NextPtr]
		1170	or esi, esi
		1171	jz .port_ok
1206	hidnplayr	1172
2402	hidnplayr	1173	cmp [esi + SOCKET.Protocol], ecx
		1174	jne .next_socket
1206	hidnplayr	1175
2622	hidnplayr	1176	cmp [esi + IP_SOCKET.LocalIP], edx
		1177	jne .next_socket
		1178
2402	hidnplayr	1179	cmp [esi + UDP_SOCKET.LocalPort], bx
		1180	jne .next_socket
1206	hidnplayr	1181
2402	hidnplayr	1182	DEBUGF 1,"local port %u already in use\n", bx
		1183	ret
1206	hidnplayr	1184
		1185	.port_ok:
2995	hidnplayr	1186	DEBUGF 1,"local port %x is free\n", bx ; FIXME: find a way to print big endian values with debugf
2402	hidnplayr	1187	mov [eax + UDP_SOCKET.LocalPort], bx
2995	hidnplayr	1188	or bx, bx ; clear the zero-flag
2402	hidnplayr	1189	ret
1206	hidnplayr	1190
		1191
1257	hidnplayr	1192
		1193	;-----------------------------------------------------------------
1206	hidnplayr	1194	;
1514	hidnplayr	1195	; SOCKET_input
1206	hidnplayr	1196	;
1536	hidnplayr	1197	; Updates a (stateless) socket with received data
1206	hidnplayr	1198	;
1514	hidnplayr	1199	; Note: the mutex should already be set !
1206	hidnplayr	1200	;
1249	hidnplayr	1201	; IN: eax = socket ptr
1514	hidnplayr	1202	; ecx = data size
		1203	; esi = ptr to data
		1204	; [esp] = ptr to buf
		1205	; [esp + 4] = buf size
1249	hidnplayr	1206	;
1514	hidnplayr	1207	; OUT: /
1206	hidnplayr	1208	;
1257	hidnplayr	1209	;-----------------------------------------------------------------
1206	hidnplayr	1210	align 4
1514	hidnplayr	1211	SOCKET_input:
1206	hidnplayr	1212
2402	hidnplayr	1213	DEBUGF 1,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx
1206	hidnplayr	1214
2402	hidnplayr	1215	mov [esp+4], ecx
		1216	push esi
		1217	mov esi, esp
1514	hidnplayr	1218
2402	hidnplayr	1219	add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full
1514	hidnplayr	1220
2402	hidnplayr	1221	DEBUGF 1,"SOCKET_input: queued packet successfully\n"
		1222	add esp, sizeof.socket_queue_entry
1206	hidnplayr	1223
2402	hidnplayr	1224	pusha
		1225	lea ecx, [eax + SOCKET.mutex]
		1226	call mutex_unlock
		1227	popa
		1228
		1229	jmp SOCKET_notify_owner
		1230
1514	hidnplayr	1231	.full:
2402	hidnplayr	1232	DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax
1206	hidnplayr	1233
2402	hidnplayr	1234	pusha
		1235	lea ecx, [eax + SOCKET.mutex]
		1236	call mutex_unlock
		1237	popa
1514	hidnplayr	1238
2402	hidnplayr	1239	call kernel_free
		1240	add esp, 8
1533	hidnplayr	1241
2402	hidnplayr	1242	ret
		1243
		1244
1533	hidnplayr	1245	;--------------------------
		1246	;
		1247	; eax = ptr to ring struct (just a buffer of the right size)
		1248	;
		1249	align 4
		1250	SOCKET_ring_create:
		1251
2402	hidnplayr	1252	push esi
		1253	mov esi, eax
1543	hidnplayr	1254
2402	hidnplayr	1255	push edx
		1256	stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW
		1257	pop edx
1533	hidnplayr	1258
2402	hidnplayr	1259	DEBUGF 1,"SOCKET_ring_created: %x\n", eax
		1260	mov [esi + RING_BUFFER.start_ptr], eax
		1261	mov [esi + RING_BUFFER.write_ptr], eax
		1262	mov [esi + RING_BUFFER.read_ptr], eax
		1263	mov [esi + RING_BUFFER.size], 0
2888	hidnplayr	1264	add eax, SOCKET_MAXDATA
2402	hidnplayr	1265	mov [esi + RING_BUFFER.end_ptr], eax
		1266	mov eax, esi
		1267	pop esi
1533	hidnplayr	1268
2402	hidnplayr	1269	ret
1533	hidnplayr	1270
1514	hidnplayr	1271	;-----------------------------------------------------------------
		1272	;
1533	hidnplayr	1273	; SOCKET_ring_write
1529	hidnplayr	1274	;
1533	hidnplayr	1275	; Adds data to a stream socket, and updates write pointer and size
1529	hidnplayr	1276	;
		1277	; IN: eax = ptr to ring struct
		1278	; ecx = data size
		1279	; esi = ptr to data
		1280	;
1533	hidnplayr	1281	; OUT: ecx = number of bytes stored
1529	hidnplayr	1282	;
		1283	;-----------------------------------------------------------------
		1284	align 4
1533	hidnplayr	1285	SOCKET_ring_write:
1529	hidnplayr	1286
2402	hidnplayr	1287	DEBUGF 1,"SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx
1529	hidnplayr	1288
2402	hidnplayr	1289	add [eax + RING_BUFFER.size], ecx
2573	hidnplayr	1290	jc .way_too_large
2402	hidnplayr	1291	cmp [eax + RING_BUFFER.size], SOCKET_MAXDATA
		1292	ja .too_large
1529	hidnplayr	1293
		1294	.copy:
2402	hidnplayr	1295	mov edi, [eax + RING_BUFFER.write_ptr]
		1296	DEBUGF 2,"SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi
1529	hidnplayr	1297
2402	hidnplayr	1298	push ecx
		1299	shr ecx, 1
		1300	jnc .nb
		1301	movsb
1536	hidnplayr	1302	.nb:
2402	hidnplayr	1303	shr ecx, 1
		1304	jnc .nw
		1305	movsw
1536	hidnplayr	1306	.nw:
2402	hidnplayr	1307	test ecx, ecx
		1308	jz .nd
		1309	rep movsd
1536	hidnplayr	1310	.nd:
2402	hidnplayr	1311	pop ecx
1529	hidnplayr	1312
2402	hidnplayr	1313	cmp edi, [eax + RING_BUFFER.end_ptr]
		1314	jae .wrap
		1315	mov [eax + RING_BUFFER.write_ptr], edi
1533	hidnplayr	1316
2402	hidnplayr	1317	ret
1529	hidnplayr	1318
1533	hidnplayr	1319	.wrap:
2402	hidnplayr	1320	sub edi, SOCKET_MAXDATA
		1321	mov [eax + RING_BUFFER.write_ptr], edi
1533	hidnplayr	1322
2402	hidnplayr	1323	ret
1533	hidnplayr	1324
2404	hidnplayr	1325	.too_large: ; update size, we will fill buffer completely
		1326	sub [eax + RING_BUFFER.size], SOCKET_MAXDATA
2402	hidnplayr	1327	sub ecx, [eax + RING_BUFFER.size]
2404	hidnplayr	1328	mov [eax + RING_BUFFER.size], SOCKET_MAXDATA
2573	hidnplayr	1329	ja .copy
1529	hidnplayr	1330
2573	hidnplayr	1331	.full:
2402	hidnplayr	1332	DEBUGF 2,"SOCKET_ring_write: ring buffer is full!\n"
		1333	xor ecx, ecx
		1334	ret
1529	hidnplayr	1335
2573	hidnplayr	1336	.way_too_large:
		1337	sub [eax + RING_BUFFER.size], ecx
		1338	mov ecx, SOCKET_MAXDATA
		1339	sub ecx, [eax + RING_BUFFER.size]
		1340	ja .copy
		1341	jmp .full
1529	hidnplayr	1342
2573	hidnplayr	1343
		1344
1529	hidnplayr	1345	;-----------------------------------------------------------------
		1346	;
		1347	; SOCKET_ring_read
		1348	;
2893	hidnplayr	1349	; IN: eax = ring struct ptr
		1350	; ecx = bytes to read
		1351	; edx = offset
2994	hidnplayr	1352	; edi = ptr to buffer start
1529	hidnplayr	1353	;
2994	hidnplayr	1354	; OUT: eax = unchanged
		1355	; ecx = number of bytes read (0 on error)
		1356	; edx = destroyed
		1357	; esi = destroyed
		1358	; edi = ptr to buffer end
1529	hidnplayr	1359	;
		1360	;-----------------------------------------------------------------
		1361	align 4
		1362	SOCKET_ring_read:
		1363
2893	hidnplayr	1364	DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u offset=%x\n", eax, edi, ecx, edx
1529	hidnplayr	1365
2893	hidnplayr	1366	mov esi, [eax + RING_BUFFER.read_ptr]
		1367	add esi, edx ; esi = start_ptr + offset
		1368
		1369	neg edx
		1370	add edx, [eax + RING_BUFFER.size] ; edx = snd.size - offset
		1371	jle .no_data_at_all
		1372
		1373	cmp ecx, edx
2402	hidnplayr	1374	ja .less_data
1529	hidnplayr	1375
		1376	.copy:
2402	hidnplayr	1377	DEBUGF 2,"SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi
		1378	push ecx
		1379	shr ecx, 1
		1380	jnc .nb
		1381	movsb
1536	hidnplayr	1382	.nb:
2402	hidnplayr	1383	shr ecx, 1
		1384	jnc .nw
		1385	movsw
1536	hidnplayr	1386	.nw:
2402	hidnplayr	1387	test ecx, ecx
		1388	jz .nd
		1389	rep movsd
1536	hidnplayr	1390	.nd:
2402	hidnplayr	1391	pop ecx
2893	hidnplayr	1392	ret
1529	hidnplayr	1393
1830	hidnplayr	1394	.no_data_at_all:
2894	hidnplayr	1395	DEBUGF 1,"SOCKET_ring_read: no data at all!\n"
2993	hidnplayr	1396	xor ecx, ecx
2402	hidnplayr	1397	ret
1529	hidnplayr	1398
1533	hidnplayr	1399	.less_data:
2893	hidnplayr	1400	mov ecx, edx
2402	hidnplayr	1401	jmp .copy
1529	hidnplayr	1402
		1403
		1404	;-----------------------------------------------------------------
		1405	;
		1406	; SOCKET_ring_free
		1407	;
		1408	; Free's some bytes from the ringbuffer
		1409	;
		1410	; IN: eax = ptr to ring struct
		1411	; ecx = data size
		1412	;
		1413	; OUT: ecx = number of bytes free-ed
		1414	;
		1415	;-----------------------------------------------------------------
		1416	align 4
		1417	SOCKET_ring_free:
		1418
2402	hidnplayr	1419	DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax
1529	hidnplayr	1420
2402	hidnplayr	1421	sub [eax + RING_BUFFER.size], ecx
2888	hidnplayr	1422	jb .error
2402	hidnplayr	1423	add [eax + RING_BUFFER.read_ptr], ecx
1529	hidnplayr	1424
2402	hidnplayr	1425	mov edx, [eax + RING_BUFFER.end_ptr]
		1426	cmp [eax + RING_BUFFER.read_ptr], edx
		1427	jb @f
		1428	sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA
1529	hidnplayr	1429	@@:
2402	hidnplayr	1430	ret
1529	hidnplayr	1431
2888	hidnplayr	1432	.error: ; we could free all available bytes, but that would be stupid, i guess..
		1433	DEBUGF 1,"SOCKET_ring_free: buffer=%x error!\n", eax
2402	hidnplayr	1434	add [eax + RING_BUFFER.size], ecx
		1435	xor ecx, ecx
		1436	ret
1529	hidnplayr	1437
		1438
		1439	;-----------------------------------------------------------------
		1440	;
1514	hidnplayr	1441	; SOCKET_notify_owner
		1442	;
		1443	; notify's the owner of a socket that something happened
		1444	;
		1445	; IN: eax = socket ptr
		1446	; OUT: /
		1447	;
		1448	;-----------------------------------------------------------------
		1449	align 4
		1450	SOCKET_notify_owner:
		1451
2402	hidnplayr	1452	DEBUGF 1,"SOCKET_notify_owner: %x\n", eax
1514	hidnplayr	1453
2402	hidnplayr	1454	call SOCKET_check
		1455	jz .error
1514	hidnplayr	1456
2402	hidnplayr	1457	push eax ecx esi
1514	hidnplayr	1458
		1459	; socket exists, now try to flag an event to the application
		1460
2402	hidnplayr	1461	mov eax, [eax + SOCKET.PID]
2629	hidnplayr	1462	test eax, eax
		1463	jz .error2
2402	hidnplayr	1464	mov ecx, 1
		1465	mov esi, TASK_DATA + TASKDATA.pid
1206	hidnplayr	1466
		1467	.next_pid:
2402	hidnplayr	1468	cmp [esi], eax
		1469	je .found_pid
		1470	inc ecx
		1471	add esi, 0x20
		1472	cmp ecx, [TASK_COUNT]
		1473	jbe .next_pid
1206	hidnplayr	1474
1514	hidnplayr	1475	; PID not found, TODO: close socket!
		1476
2402	hidnplayr	1477	jmp .error2
1514	hidnplayr	1478
1206	hidnplayr	1479	.found_pid:
2402	hidnplayr	1480	shl ecx, 8
		1481	or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK
		1482	mov [check_idle_semaphore], 200
1206	hidnplayr	1483
2402	hidnplayr	1484	DEBUGF 1,"SOCKET_notify_owner: succes!\n"
1514	hidnplayr	1485
		1486	.error2:
2402	hidnplayr	1487	pop esi ecx eax
1536	hidnplayr	1488
1514	hidnplayr	1489	.error:
		1490
2402	hidnplayr	1491	ret
1206	hidnplayr	1492
		1493
1514	hidnplayr	1494	;--------------------------------------------------------------------
		1495	;
		1496	; SOCKET_alloc
		1497	;
1159	hidnplayr	1498	; Allocate memory for socket data and put new socket into the list
		1499	; Newly created socket is initialized with calling PID and number and
		1500	; put into beginning of list (which is a fastest way).
		1501	;
1514	hidnplayr	1502	; IN: /
		1503	; OUT: eax = 0 on error, socket ptr otherwise
		1504	; edi = socket number
		1505	; ZF = cleared on error
1159	hidnplayr	1506	;
1514	hidnplayr	1507	;--------------------------------------------------------------------
		1508	align 4
		1509	SOCKET_alloc:
		1510
2402	hidnplayr	1511	push ebx
1514	hidnplayr	1512
2402	hidnplayr	1513	stdcall kernel_alloc, SOCKETBUFFSIZE
		1514	DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax
		1515	or eax, eax
		1516	jz .exit
1159	hidnplayr	1517
1514	hidnplayr	1518	; zero-initialize allocated memory
2402	hidnplayr	1519	push eax
		1520	mov edi, eax
		1521	mov ecx, SOCKETBUFFSIZE / 4
		1522	xor eax, eax
		1523	rep stosd
		1524	pop eax
1159	hidnplayr	1525
1536	hidnplayr	1526	; set send-and receive procedures to return -1
2402	hidnplayr	1527	mov [eax + SOCKET.snd_proc], s_error
		1528	mov [eax + SOCKET.rcv_proc], s_error
1536	hidnplayr	1529
1514	hidnplayr	1530	; find first free socket number and use it
2402	hidnplayr	1531	mov edi, [last_socket_num]
1159	hidnplayr	1532	.next_socket_number:
2402	hidnplayr	1533	inc edi
		1534	jz .next_socket_number ; avoid socket nr 0
		1535	cmp edi, -1
		1536	je .next_socket_number ; avoid socket nr -1
		1537	mov ebx, net_sockets
1159	hidnplayr	1538	.next_socket:
2402	hidnplayr	1539	mov ebx, [ebx + SOCKET.NextPtr]
		1540	test ebx, ebx
		1541	jz .last_socket
1536	hidnplayr	1542
2402	hidnplayr	1543	cmp [ebx + SOCKET.Number], edi
		1544	jne .next_socket
		1545	jmp .next_socket_number
1159	hidnplayr	1546
1514	hidnplayr	1547	.last_socket:
2402	hidnplayr	1548	mov [last_socket_num], edi
		1549	mov [eax + SOCKET.Number], edi
		1550	DEBUGF 1, "SOCKET_alloc: number=%u\n", edi
1159	hidnplayr	1551
1514	hidnplayr	1552	; Fill in PID
2402	hidnplayr	1553	mov ebx, [TASK_BASE]
		1554	mov ebx, [ebx + TASKDATA.pid]
		1555	mov [eax + SOCKET.PID], ebx
1514	hidnplayr	1556
2403	hidnplayr	1557	; init mutex
		1558	pusha
		1559	lea ecx, [eax + SOCKET.mutex]
		1560	call mutex_init
		1561	popa
		1562
1529	hidnplayr	1563	; add socket to the list by re-arranging some pointers
2402	hidnplayr	1564	mov ebx, [net_sockets + SOCKET.NextPtr]
1514	hidnplayr	1565
2402	hidnplayr	1566	mov [eax + SOCKET.PrevPtr], net_sockets
		1567	mov [eax + SOCKET.NextPtr], ebx
1514	hidnplayr	1568
2402	hidnplayr	1569	test ebx, ebx
		1570	jz @f
		1571
		1572	pusha
		1573	lea ecx, [ebx + SOCKET.mutex]
		1574	call mutex_lock
		1575	popa
		1576
		1577	mov [ebx + SOCKET.PrevPtr], eax
		1578
		1579	pusha
		1580	lea ecx, [ebx + SOCKET.mutex]
		1581	call mutex_unlock
		1582	popa
1514	hidnplayr	1583	@@:
		1584
2402	hidnplayr	1585	mov [net_sockets + SOCKET.NextPtr], eax
		1586	or eax, eax ; used to clear zero flag
1159	hidnplayr	1587	.exit:
2402	hidnplayr	1588	pop ebx
1514	hidnplayr	1589
2402	hidnplayr	1590	ret
1159	hidnplayr	1591
1514	hidnplayr	1592
		1593	;----------------------------------------------------
1159	hidnplayr	1594	;
1514	hidnplayr	1595	; SOCKET_free
1159	hidnplayr	1596	;
1514	hidnplayr	1597	; Free socket data memory and remove socket from the list
		1598	;
		1599	; IN: eax = socket ptr
		1600	; OUT: /
		1601	;
		1602	;----------------------------------------------------
		1603	align 4
		1604	SOCKET_free:
1159	hidnplayr	1605
2402	hidnplayr	1606	DEBUGF 1, "SOCKET_free: %x\n", eax
1514	hidnplayr	1607
2402	hidnplayr	1608	call SOCKET_check
		1609	jz .error
1159	hidnplayr	1610
2402	hidnplayr	1611	push ebx
1514	hidnplayr	1612
2402	hidnplayr	1613	pusha
		1614	lea ecx, [eax + SOCKET.mutex]
		1615	call mutex_lock
		1616	popa
1514	hidnplayr	1617
2402	hidnplayr	1618	cmp [eax + SOCKET.Domain], AF_INET4
		1619	jnz .no_tcp
1529	hidnplayr	1620
2402	hidnplayr	1621	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		1622	jnz .no_tcp
		1623
		1624	mov ebx, eax
		1625	stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr]
		1626	stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr]
		1627	mov eax, ebx
1536	hidnplayr	1628	.no_tcp:
1529	hidnplayr	1629
2402	hidnplayr	1630	push eax ; this will be passed to kernel_free
		1631	mov ebx, [eax + SOCKET.NextPtr]
		1632	mov eax, [eax + SOCKET.PrevPtr]
1514	hidnplayr	1633
2402	hidnplayr	1634	DEBUGF 1, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx
1514	hidnplayr	1635
2402	hidnplayr	1636	test eax, eax
		1637	jz @f
		1638	mov [eax + SOCKET.NextPtr], ebx
1514	hidnplayr	1639	@@:
1159	hidnplayr	1640
2402	hidnplayr	1641	test ebx, ebx
		1642	jz @f
		1643	mov [ebx + SOCKET.PrevPtr], eax
1514	hidnplayr	1644	@@:
1249	hidnplayr	1645
2402	hidnplayr	1646	call kernel_free
		1647	pop ebx
1159	hidnplayr	1648
2402	hidnplayr	1649	DEBUGF 1, "SOCKET_free: success!\n"
1514	hidnplayr	1650
1159	hidnplayr	1651	.error:
2402	hidnplayr	1652	ret
1159	hidnplayr	1653
1543	hidnplayr	1654	;------------------------------------
		1655	;
		1656	; SOCKET_fork
		1657	;
		1658	; Create a child socket
		1659	;
1533	hidnplayr	1660	; IN: socket nr in ebx
1543	hidnplayr	1661	; OUT: child socket nr in eax
		1662	;
		1663	;-----------------------------------
1529	hidnplayr	1664	align 4
		1665	SOCKET_fork:
		1666
2402	hidnplayr	1667	DEBUGF 1,"SOCKET_fork: %x\n", ebx
1529	hidnplayr	1668
1543	hidnplayr	1669	; Exit if backlog queue is full
2402	hidnplayr	1670	mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size]
		1671	cmp ax, [ebx + SOCKET.backlog]
		1672	jae .fail
1543	hidnplayr	1673
1529	hidnplayr	1674	; Allocate new socket
2402	hidnplayr	1675	push ebx
		1676	call SOCKET_alloc
		1677	pop ebx
		1678	jz .fail
1529	hidnplayr	1679
2402	hidnplayr	1680	push eax
		1681	mov esi, esp
		1682	add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2
		1683	pop eax
1543	hidnplayr	1684
		1685	; Copy structure from current socket to new
		1686	; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket
2402	hidnplayr	1687	lea esi, [ebx + SOCKET.PID]
		1688	lea edi, [eax + SOCKET.PID]
		1689	mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4
		1690	rep movsd
1529	hidnplayr	1691
2402	hidnplayr	1692	and [eax + SOCKET.options], not SO_ACCEPTCON
1529	hidnplayr	1693
2402	hidnplayr	1694	ret
1529	hidnplayr	1695
1543	hidnplayr	1696	.fail2:
2402	hidnplayr	1697	add esp, 4+4+4
1543	hidnplayr	1698	.fail:
2402	hidnplayr	1699	DEBUGF 1,"SOCKET_fork: failed\n"
		1700	xor eax, eax
		1701	ret
1529	hidnplayr	1702
1543	hidnplayr	1703
1514	hidnplayr	1704	;---------------------------------------------------
		1705	;
		1706	; SOCKET_num_to_ptr
		1707	;
1159	hidnplayr	1708	; Get socket structure address by its number
		1709	;
1514	hidnplayr	1710	; IN: ecx = socket number
1533	hidnplayr	1711	; OUT: eax = 0 on error, socket ptr otherwise
1514	hidnplayr	1712	; ZF = set on error
1159	hidnplayr	1713	;
1514	hidnplayr	1714	;---------------------------------------------------
		1715	align 4
		1716	SOCKET_num_to_ptr:
1159	hidnplayr	1717
2891	hidnplayr	1718	DEBUGF 1,"SOCKET_num_to_ptr: num=%u ", ecx
1514	hidnplayr	1719
2402	hidnplayr	1720	mov eax, net_sockets
1514	hidnplayr	1721
1159	hidnplayr	1722	.next_socket:
2402	hidnplayr	1723	mov eax, [eax + SOCKET.NextPtr]
		1724	or eax, eax
		1725	jz .error
		1726	cmp [eax + SOCKET.Number], ecx
		1727	jne .next_socket
1159	hidnplayr	1728
2402	hidnplayr	1729	test eax, eax
1159	hidnplayr	1730
2891	hidnplayr	1731	DEBUGF 1,"ptr=%x\n", eax
		1732	ret
		1733
1159	hidnplayr	1734	.error:
2891	hidnplayr	1735	DEBUGF 1,"not found\n", eax
2402	hidnplayr	1736	ret
1159	hidnplayr	1737
1514	hidnplayr	1738
		1739	;---------------------------------------------------
1159	hidnplayr	1740	;
1514	hidnplayr	1741	; SOCKET_ptr_to_num
1159	hidnplayr	1742	;
1514	hidnplayr	1743	; Get socket number by its address
		1744	;
		1745	; IN: eax = socket ptr
		1746	; OUT: eax = 0 on error, socket num otherwise
		1747	; ZF = set on error
		1748	;
		1749	;---------------------------------------------------
		1750	align 4
		1751	SOCKET_ptr_to_num:
		1752
2891	hidnplayr	1753	DEBUGF 1,"SOCKET_ptr_to_num: ptr=%x ", eax
1514	hidnplayr	1754
2402	hidnplayr	1755	call SOCKET_check
		1756	jz .error
1159	hidnplayr	1757
2402	hidnplayr	1758	mov eax, [eax + SOCKET.Number]
1514	hidnplayr	1759
2891	hidnplayr	1760	DEBUGF 1,"num=%u\n", eax
		1761	ret
1514	hidnplayr	1762
		1763	.error:
2891	hidnplayr	1764	DEBUGF 1,"not found\n", eax
2402	hidnplayr	1765	ret
1514	hidnplayr	1766
		1767
		1768	;---------------------------------------------------
		1769	;
		1770	; SOCKET_check
		1771	;
		1772	; checks if the given value is really a socket ptr
		1773	;
		1774	; IN: eax = socket ptr
		1775	; OUT: eax = 0 on error, unchanged otherwise
		1776	; ZF = set on error
		1777	;
		1778	;---------------------------------------------------
		1779	align 4
		1780	SOCKET_check:
		1781
2402	hidnplayr	1782	DEBUGF 1,"SOCKET_check: %x\n", eax
1514	hidnplayr	1783
2402	hidnplayr	1784	push ebx
		1785	mov ebx, net_sockets
1514	hidnplayr	1786
1159	hidnplayr	1787	.next_socket:
2402	hidnplayr	1788	mov ebx, [ebx + SOCKET.NextPtr]
		1789	or ebx, ebx
		1790	jz .done
		1791	cmp ebx, eax
		1792	jnz .next_socket
1159	hidnplayr	1793
1514	hidnplayr	1794	.done:
2402	hidnplayr	1795	mov eax, ebx
		1796	test eax, eax
		1797	pop ebx
1514	hidnplayr	1798
2402	hidnplayr	1799	ret
1159	hidnplayr	1800
1514	hidnplayr	1801
		1802
		1803	;---------------------------------------------------
		1804	;
		1805	; SOCKET_check_owner
		1806	;
		1807	; checks if the caller application owns the socket
		1808	;
		1809	; IN: eax = socket ptr
		1810	; OUT: ZF = true/false
		1811	;
		1812	;---------------------------------------------------
		1813	align 4
		1814	SOCKET_check_owner:
		1815
2402	hidnplayr	1816	DEBUGF 1,"SOCKET_check_owner: %x\n", eax
1514	hidnplayr	1817
2402	hidnplayr	1818	push ebx
		1819	mov ebx, [TASK_BASE]
		1820	mov ebx, [ecx + TASKDATA.pid]
		1821	cmp [eax + SOCKET.PID], ebx
		1822	pop ebx
1514	hidnplayr	1823
2402	hidnplayr	1824	ret
1514	hidnplayr	1825
		1826
		1827
		1828
1885	hidnplayr	1829	;------------------------------------------------------
1514	hidnplayr	1830	;
		1831	; SOCKET_process_end
		1832	;
		1833	; Kernel calls this function when a certain process ends
		1834	; This function will check if the process had any open sockets
		1835	; And update them accordingly
		1836	;
2867	hidnplayr	1837	; IN: edx = pid
1514	hidnplayr	1838	; OUT: /
		1839	;
		1840	;------------------------------------------------------
		1841	align 4
		1842	SOCKET_process_end:
		1843
2867	hidnplayr	1844	DEBUGF 1,"SOCKET_process_end: %x\n", edx
1514	hidnplayr	1845
2402	hidnplayr	1846	push ebx
		1847	mov ebx, net_sockets
1514	hidnplayr	1848
		1849	.next_socket:
2402	hidnplayr	1850	mov ebx, [ebx + SOCKET.NextPtr]
1514	hidnplayr	1851	.test_socket:
2402	hidnplayr	1852	test ebx, ebx
		1853	jz .done
1514	hidnplayr	1854
2867	hidnplayr	1855	cmp [ebx + SOCKET.PID], edx
2402	hidnplayr	1856	jne .next_socket
1514	hidnplayr	1857
2891	hidnplayr	1858	DEBUGF 1,"SOCKET_process_end: killing socket %x\n", ebx
1514	hidnplayr	1859
2402	hidnplayr	1860	mov [ebx + SOCKET.PID], 0
1514	hidnplayr	1861
2402	hidnplayr	1862	cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP
		1863	je .tcp
1514	hidnplayr	1864
2629	hidnplayr	1865	; The socket is stateless, just kill it right away!
1514	hidnplayr	1866
2402	hidnplayr	1867	mov eax, ebx
		1868	mov ebx, [ebx + SOCKET.NextPtr]
		1869	call SOCKET_free
		1870	jmp .test_socket
1514	hidnplayr	1871
		1872	.tcp:
2629	hidnplayr	1873	push [ebx + SOCKET.NextPtr]
		1874	mov eax, ebx
2869	hidnplayr	1875	call TCP_disconnect
2629	hidnplayr	1876	pop ebx
		1877	jmp .test_socket
1885	hidnplayr	1878
1514	hidnplayr	1879	.done:
2402	hidnplayr	1880	pop ebx
1514	hidnplayr	1881
2402	hidnplayr	1882	ret
1773	hidnplayr	1883
		1884
		1885
		1886
1885	hidnplayr	1887	;-----------------------------------------------------------------
		1888	;
		1889	; SOCKET_is_connecting
		1890	;
		1891	; IN: eax = socket ptr
		1892	; OUT: /
		1893	;
		1894	;-----------------------------------------------------------------
1773	hidnplayr	1895
1885	hidnplayr	1896	align 4
		1897	SOCKET_is_connecting:
1773	hidnplayr	1898
2891	hidnplayr	1899	DEBUGF 1,"SOCKET_is_connecting: %x\n", eax
1773	hidnplayr	1900
2402	hidnplayr	1901	and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING)
		1902	or [eax + SOCKET.options], SS_ISCONNECTING
1773	hidnplayr	1903
2402	hidnplayr	1904	jmp SOCKET_notify_owner
1885	hidnplayr	1905
		1906
		1907
1773	hidnplayr	1908	;-----------------------------------------------------------------
		1909	;
1885	hidnplayr	1910	; SOCKET_is_connected
		1911	;
		1912	; IN: eax = socket ptr
		1913	; OUT: /
		1914	;
		1915	;-----------------------------------------------------------------
		1916
		1917	align 4
		1918	SOCKET_is_connected:
		1919
2891	hidnplayr	1920	DEBUGF 1,"SOCKET_is_connected: %x\n", eax
1885	hidnplayr	1921
2402	hidnplayr	1922	and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING)
		1923	or [eax + SOCKET.options], SS_ISCONNECTED
1885	hidnplayr	1924
2402	hidnplayr	1925	jmp SOCKET_notify_owner
1885	hidnplayr	1926
		1927
		1928
		1929
		1930	;-----------------------------------------------------------------
		1931	;
1773	hidnplayr	1932	; SOCKET_is_disconnecting
		1933	;
		1934	; IN: eax = socket ptr
		1935	; OUT: /
		1936	;
		1937	;-----------------------------------------------------------------
		1938
		1939	align 4
		1940	SOCKET_is_disconnecting:
		1941
2891	hidnplayr	1942	DEBUGF 1,"SOCKET_is_disconnecting: %x\n", eax
		1943
2402	hidnplayr	1944	and [eax + SOCKET.options], not (SS_ISCONNECTING)
		1945	or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE
1773	hidnplayr	1946
2402	hidnplayr	1947	jmp SOCKET_notify_owner
1773	hidnplayr	1948
		1949
		1950
		1951	;-----------------------------------------------------------------
		1952	;
		1953	; SOCKET_is_disconnected
		1954	;
		1955	; IN: eax = socket ptr
		1956	; OUT: /
		1957	;
		1958	;-----------------------------------------------------------------
		1959
		1960	align 4
		1961	SOCKET_is_disconnected:
		1962
2891	hidnplayr	1963	DEBUGF 1,"SOCKET_is_disconnected: %x\n", eax
		1964
2402	hidnplayr	1965	and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING)
		1966	or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE
1773	hidnplayr	1967
2402	hidnplayr	1968	jmp SOCKET_notify_owner
1774	hidnplayr	1969
		1970
		1971	;-----------------------------------------------------------------
		1972	;
		1973	; SOCKET_cant_recv_more
		1974	;
		1975	; IN: eax = socket ptr
		1976	; OUT: /
		1977	;
		1978	;-----------------------------------------------------------------
		1979
		1980	align 4
		1981	SOCKET_cant_recv_more:
		1982
2891	hidnplayr	1983	DEBUGF 1,"SOCKET_cant_recv_more: %x\n", eax
		1984
2402	hidnplayr	1985	or [eax + SOCKET.options], SS_CANTRCVMORE
1885	hidnplayr	1986
2402	hidnplayr	1987	ret
1831	hidnplayr	1988
		1989
		1990
		1991	;-----------------------------------------------------------------
		1992	;
1885	hidnplayr	1993	; SOCKET_cant_send_more
1831	hidnplayr	1994	;
		1995	; IN: eax = socket ptr
		1996	; OUT: /
		1997	;
		1998	;-----------------------------------------------------------------
		1999
		2000	align 4
1885	hidnplayr	2001	SOCKET_cant_send_more:
1831	hidnplayr	2002
2891	hidnplayr	2003	DEBUGF 1,"SOCKET_cant_send_more: %x\n", eax
		2004
2402	hidnplayr	2005	or [eax + SOCKET.options], SS_CANTSENDMORE
1831	hidnplayr	2006
2402	hidnplayr	2007	ret

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(root)/kernel/branches/net/network/socket.inc – Rev 2995