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

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(root)/kernel/branches/net/network/socket.inc @ 2924 – Rev 2891