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: 2890 $
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
		135	sendalot db ?
		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
2402	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
2402	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	DEBUGF 1,"af_inet4\n"
1514	hidnplayr	389
2402	hidnplayr	390	cmp esi, 6
		391	jb s_error
1159	hidnplayr	392
2622	hidnplayr	393	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		394	je .udp
1159	hidnplayr	395
2622	hidnplayr	396	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		397	je .tcp
1159	hidnplayr	398
2622	hidnplayr	399	jmp s_error
		400
		401	.tcp:
		402	.udp:
		403
		404	mov ebx, [edx + 4] ; First, fill in the IP
		405	test ebx, ebx ; If IP is 0, use default
		406	jnz @f
		407	mov ebx, [NET_DEFAULT]
		408	mov ebx, [IP_LIST + 4*ebx]
		409	@@:
		410	mov [eax + IP_SOCKET.LocalIP], ebx
		411
		412	mov bx, [edx + 2] ; Now fill in the port if it's still available
		413	call SOCKET_check_port
		414	jz s_error ; ZF is set by socket_check_port, on error
		415
2402	hidnplayr	416	DEBUGF 1,"local ip: %u.%u.%u.%u\n",\
		417	[eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\
		418	[eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1
1159	hidnplayr	419
2402	hidnplayr	420	mov dword [esp+32], 0
		421	ret
1159	hidnplayr	422
		423
		424
		425
1257	hidnplayr	426	;-----------------------------------------------------------------
1159	hidnplayr	427	;
		428	; SOCKET_connect
		429	;
		430	; IN: socket number in ecx
		431	; pointer to sockaddr struct in edx
		432	; length of that struct in esi
		433	; OUT: 0 on success
		434	;
1257	hidnplayr	435	;-----------------------------------------------------------------
1159	hidnplayr	436	align 4
1514	hidnplayr	437	SOCKET_connect:
1159	hidnplayr	438
2402	hidnplayr	439	DEBUGF 1,"SOCKET_connect: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi
1159	hidnplayr	440
2402	hidnplayr	441	call SOCKET_num_to_ptr
		442	jz s_error
1159	hidnplayr	443
2402	hidnplayr	444	cmp esi, 8
		445	jb s_error
1159	hidnplayr	446
2402	hidnplayr	447	cmp word [edx], AF_INET4
		448	je .af_inet4
1159	hidnplayr	449
2402	hidnplayr	450	jmp s_error
1159	hidnplayr	451
		452	.af_inet4:
2402	hidnplayr	453	cmp [eax + IP_SOCKET.LocalIP], 0
		454	jne @f
		455	push [IP_LIST]
		456	pop [eax + IP_SOCKET.LocalIP]
1543	hidnplayr	457	@@:
1159	hidnplayr	458
2402	hidnplayr	459	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		460	je .udp
1159	hidnplayr	461
2402	hidnplayr	462	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		463	je .tcp
1159	hidnplayr	464
2402	hidnplayr	465	cmp [eax + SOCKET.Protocol], IP_PROTO_IP
		466	je .ip
1541	hidnplayr	467
2402	hidnplayr	468	cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP
		469	je .ip
1542	hidnplayr	470
2402	hidnplayr	471	jmp s_error
1159	hidnplayr	472
1542	hidnplayr	473	align 4
1254	hidnplayr	474	.udp:
2402	hidnplayr	475	pusha
		476	lea ecx, [eax + SOCKET.mutex]
		477	call mutex_lock
		478	popa
1543	hidnplayr	479
2402	hidnplayr	480	pushw [edx + 2]
		481	pop [eax + UDP_SOCKET.RemotePort]
1543	hidnplayr	482
2402	hidnplayr	483	pushd [edx + 4]
		484	pop [eax + IP_SOCKET.RemoteIP]
1543	hidnplayr	485
2402	hidnplayr	486	cmp [eax + UDP_SOCKET.LocalPort], 0
		487	jne @f
		488	call SOCKET_find_port
1543	hidnplayr	489	@@:
		490
2402	hidnplayr	491	mov [eax + UDP_SOCKET.firstpacket], 0
1159	hidnplayr	492
2402	hidnplayr	493	push eax
		494	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		495	pop eax
1159	hidnplayr	496
2402	hidnplayr	497	lea ecx, [eax + SOCKET.mutex]
		498	call mutex_unlock
1159	hidnplayr	499
2402	hidnplayr	500	mov dword [esp+32], 0
		501	ret
		502
1542	hidnplayr	503	align 4
1254	hidnplayr	504	.tcp:
2402	hidnplayr	505	pusha
		506	lea ecx, [eax + SOCKET.mutex]
		507	call mutex_lock
		508	popa
1159	hidnplayr	509
2402	hidnplayr	510	pushw [edx + 2]
		511	pop [eax + TCP_SOCKET.RemotePort]
1159	hidnplayr	512
2402	hidnplayr	513	pushd [edx + 4]
		514	pop [eax + IP_SOCKET.RemoteIP]
1159	hidnplayr	515
2402	hidnplayr	516	cmp [eax + TCP_SOCKET.LocalPort], 0
		517	jne @f
		518	call SOCKET_find_port
1543	hidnplayr	519	@@:
1159	hidnplayr	520
2402	hidnplayr	521	mov [eax + TCP_SOCKET.timer_persist], 0
		522	mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT
2612	hidnplayr	523
2402	hidnplayr	524	push [TCP_sequence_num]
		525	add [TCP_sequence_num], 6400
		526	pop [eax + TCP_SOCKET.ISS]
		527	mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init
1519	hidnplayr	528
2612	hidnplayr	529
2402	hidnplayr	530	TCP_sendseqinit eax
1529	hidnplayr	531
1543	hidnplayr	532	; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer
1533	hidnplayr	533
2402	hidnplayr	534	mov ebx, eax
1159	hidnplayr	535
2402	hidnplayr	536	lea eax, [ebx + STREAM_SOCKET.snd]
		537	call SOCKET_ring_create
1543	hidnplayr	538
2402	hidnplayr	539	lea eax, [ebx + STREAM_SOCKET.rcv]
		540	call SOCKET_ring_create
1543	hidnplayr	541
2402	hidnplayr	542	pusha
2403	hidnplayr	543	lea ecx, [eax + SOCKET.mutex]
2402	hidnplayr	544	call mutex_unlock
		545	popa
1733	hidnplayr	546
2402	hidnplayr	547	mov eax, ebx
		548	call TCP_output
1733	hidnplayr	549
2402	hidnplayr	550	mov dword [esp+32], 0
		551	ret
1159	hidnplayr	552
1542	hidnplayr	553	align 4
		554	.ip:
2402	hidnplayr	555	pusha
		556	lea ecx, [eax + SOCKET.mutex]
		557	call mutex_lock
		558	popa
1543	hidnplayr	559
2402	hidnplayr	560	pushd [edx + 4]
		561	pop [eax + IP_SOCKET.RemoteIP]
1159	hidnplayr	562
2402	hidnplayr	563	push eax
		564	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		565	pop eax
1543	hidnplayr	566
2402	hidnplayr	567	lea ecx, [eax + SOCKET.mutex]
		568	call mutex_unlock
1541	hidnplayr	569
2402	hidnplayr	570	mov dword [esp+32], 0
		571	ret
1541	hidnplayr	572
2402	hidnplayr	573
1257	hidnplayr	574	;-----------------------------------------------------------------
1159	hidnplayr	575	;
		576	; SOCKET_listen
		577	;
		578	; IN: socket number in ecx
		579	; backlog in edx
		580	; OUT: eax is socket num, -1 on error
		581	;
1257	hidnplayr	582	;-----------------------------------------------------------------
1206	hidnplayr	583	align 4
1514	hidnplayr	584	SOCKET_listen:
1159	hidnplayr	585
2402	hidnplayr	586	DEBUGF 1,"SOCKET_listen: socknum: %u backlog: %u\n", ecx, edx
1159	hidnplayr	587
2402	hidnplayr	588	call SOCKET_num_to_ptr
		589	jz s_error
1159	hidnplayr	590
2402	hidnplayr	591	cmp [eax + SOCKET.Domain], AF_INET4
		592	jne s_error
1254	hidnplayr	593
2402	hidnplayr	594	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		595	jne s_error
1254	hidnplayr	596
2402	hidnplayr	597	cmp [eax + TCP_SOCKET.LocalPort], 0
		598	je s_error
1514	hidnplayr	599
2402	hidnplayr	600	cmp [eax + IP_SOCKET.LocalIP], 0
		601	jne @f
		602	push [IP_LIST]
		603	pop [eax + IP_SOCKET.LocalIP]
1543	hidnplayr	604	@@:
		605
2402	hidnplayr	606	cmp edx, MAX_backlog
		607	jbe @f
		608	mov edx, MAX_backlog
1543	hidnplayr	609	@@:
1159	hidnplayr	610
2402	hidnplayr	611	mov [eax + SOCKET.backlog], dx
		612	or [eax + SOCKET.options], SO_ACCEPTCON
		613	mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN
2880	hidnplayr	614	mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer
1159	hidnplayr	615
2402	hidnplayr	616	push eax
		617	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue
		618	pop eax
1543	hidnplayr	619
2402	hidnplayr	620	mov dword [esp+32], 0
1514	hidnplayr	621
2402	hidnplayr	622	ret
1159	hidnplayr	623
		624
1257	hidnplayr	625	;-----------------------------------------------------------------
1159	hidnplayr	626	;
		627	; SOCKET_accept
		628	;
		629	; IN: socket number in ecx
		630	; addr in edx
		631	; addrlen in esi
		632	; OUT: eax is socket num, -1 on error
		633	;
1257	hidnplayr	634	;-----------------------------------------------------------------
1206	hidnplayr	635	align 4
1514	hidnplayr	636	SOCKET_accept:
1159	hidnplayr	637
2402	hidnplayr	638	DEBUGF 1,"SOCKET_accept: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi
1159	hidnplayr	639
2402	hidnplayr	640	call SOCKET_num_to_ptr
		641	jz s_error
1159	hidnplayr	642
2402	hidnplayr	643	test [eax + SOCKET.options], SO_ACCEPTCON
		644	jz s_error
1543	hidnplayr	645
2402	hidnplayr	646	cmp [eax + SOCKET.Domain], AF_INET4
		647	jne s_error
1249	hidnplayr	648
2402	hidnplayr	649	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		650	jne s_error
1249	hidnplayr	651
2402	hidnplayr	652	get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, s_error
2572	hidnplayr	653	mov eax, [esi]
1249	hidnplayr	654
2572	hidnplayr	655	; Change PID to that of the current process
		656	mov ebx, [TASK_BASE]
		657	mov ebx, [ebx + TASKDATA.pid]
		658	mov [eax + SOCKET.PID], ebx
		659
2402	hidnplayr	660	call SOCKET_ptr_to_num
		661	jz s_error
		662	mov [esp+32], eax
		663	ret
1514	hidnplayr	664
1159	hidnplayr	665
1257	hidnplayr	666	;-----------------------------------------------------------------
1159	hidnplayr	667	;
		668	; SOCKET_close
		669	;
		670	; IN: socket number in ecx
		671	; OUT: eax is socket num, -1 on error
		672	;
1257	hidnplayr	673	;-----------------------------------------------------------------
1206	hidnplayr	674	align 4
1514	hidnplayr	675	SOCKET_close:
1159	hidnplayr	676
2402	hidnplayr	677	DEBUGF 1,"SOCKET_close: socknum: %u\n", ecx
1159	hidnplayr	678
2402	hidnplayr	679	call SOCKET_num_to_ptr
		680	jz s_error
1159	hidnplayr	681
2402	hidnplayr	682	cmp [eax + SOCKET.Domain], AF_INET4
		683	jne s_error
1159	hidnplayr	684
2402	hidnplayr	685	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		686	je .free
1159	hidnplayr	687
2402	hidnplayr	688	cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP
		689	je .free
1159	hidnplayr	690
2402	hidnplayr	691	cmp [eax + SOCKET.Protocol], IP_PROTO_IP
		692	je .free
1542	hidnplayr	693
2402	hidnplayr	694	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		695	je .tcp
1159	hidnplayr	696
2402	hidnplayr	697	jmp s_error
1159	hidnplayr	698
		699	.tcp:
2402	hidnplayr	700	cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED
		701	jb .free
1318	hidnplayr	702
2890	hidnplayr	703	call TCP_usrclosed
2402	hidnplayr	704	mov dword [esp+32], 0
1159	hidnplayr	705
2402	hidnplayr	706	ret
1159	hidnplayr	707
1514	hidnplayr	708	.free:
2402	hidnplayr	709	call SOCKET_free
		710	mov dword [esp+32], 0
1159	hidnplayr	711
2402	hidnplayr	712	ret
1159	hidnplayr	713
		714
1257	hidnplayr	715	;-----------------------------------------------------------------
1159	hidnplayr	716	;
		717	; SOCKET_receive
		718	;
		719	; IN: socket number in ecx
1249	hidnplayr	720	; addr to buffer in edx
		721	; length of buffer in esi
1159	hidnplayr	722	; flags in edi
		723	; OUT: eax is number of bytes copied, -1 on error
		724	;
1257	hidnplayr	725	;-----------------------------------------------------------------
1206	hidnplayr	726	align 4
1514	hidnplayr	727	SOCKET_receive:
1159	hidnplayr	728
2402	hidnplayr	729	DEBUGF 1,"SOCKET_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x, ", ecx, edx, esi, edi
1514	hidnplayr	730
2402	hidnplayr	731	call SOCKET_num_to_ptr
		732	jz s_error
1159	hidnplayr	733
2402	hidnplayr	734	jmp [eax + SOCKET.rcv_proc]
1533	hidnplayr	735
1536	hidnplayr	736
		737	align 4
1541	hidnplayr	738	SOCKET_receive_dgram:
1536	hidnplayr	739
2402	hidnplayr	740	DEBUGF 1,"SOCKET_receive: DGRAM\n"
1536	hidnplayr	741
2402	hidnplayr	742	mov ebx, esi
		743	mov edi, edx ; addr to buffer
1159	hidnplayr	744
2402	hidnplayr	745	get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, s_error ; destroys esi and ecx
1536	hidnplayr	746
2402	hidnplayr	747	mov ecx, [esi + socket_queue_entry.data_size]
		748	DEBUGF 1,"Got %u bytes of data\n", ecx
1159	hidnplayr	749
2402	hidnplayr	750	cmp ecx, ebx
		751	ja .too_small
1514	hidnplayr	752
2402	hidnplayr	753	push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later
		754	mov esi, [esi + socket_queue_entry.data_ptr]
		755	DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi
		756	mov [esp+32+4], ecx ; return number of bytes copied
1159	hidnplayr	757
1514	hidnplayr	758	; copy the data
2402	hidnplayr	759	shr ecx, 1
		760	jnc .nb
		761	movsb
1536	hidnplayr	762	.nb:
2402	hidnplayr	763	shr ecx, 1
		764	jnc .nw
		765	movsw
1536	hidnplayr	766	.nw:
2402	hidnplayr	767	test ecx, ecx
		768	jz .nd
		769	rep movsd
1536	hidnplayr	770	.nd:
1159	hidnplayr	771
2402	hidnplayr	772	call kernel_free ; remove the packet
		773	ret
1514	hidnplayr	774
1536	hidnplayr	775	.too_small:
1533	hidnplayr	776
2402	hidnplayr	777	DEBUGF 1,"Buffer too small...\n"
		778	jmp s_error
1536	hidnplayr	779
		780	align 4
		781	SOCKET_receive_tcp:
		782
2402	hidnplayr	783	DEBUGF 1,"SOCKET_receive: TCP\n"
1536	hidnplayr	784
2402	hidnplayr	785	mov ecx, esi
		786	mov edi, edx
		787	add eax, STREAM_SOCKET.rcv
		788	call SOCKET_ring_read
		789	call SOCKET_ring_free
1533	hidnplayr	790
2402	hidnplayr	791	mov [esp+32], ecx ; return number of bytes copied
1533	hidnplayr	792
2402	hidnplayr	793	ret
1159	hidnplayr	794
		795
1257	hidnplayr	796	;-----------------------------------------------------------------
1159	hidnplayr	797	;
		798	; SOCKET_send
		799	;
		800	;
		801	; IN: socket number in ecx
1206	hidnplayr	802	; pointer to data in edx
		803	; datalength in esi
1159	hidnplayr	804	; flags in edi
		805	; OUT: -1 on error
		806	;
1257	hidnplayr	807	;-----------------------------------------------------------------
1206	hidnplayr	808	align 4
1514	hidnplayr	809	SOCKET_send:
1159	hidnplayr	810
2402	hidnplayr	811	DEBUGF 1,"SOCKET_send: socknum: %u data ptr: %x, length: %u, flags: %x, ", ecx, edx, esi, edi
1159	hidnplayr	812
2402	hidnplayr	813	call SOCKET_num_to_ptr
		814	jz s_error
1159	hidnplayr	815
2402	hidnplayr	816	mov ecx, esi
		817	mov esi, edx
1763	hidnplayr	818
2402	hidnplayr	819	jmp [eax + SOCKET.snd_proc]
1206	hidnplayr	820
		821
1536	hidnplayr	822	align 4
		823	SOCKET_send_udp:
1529	hidnplayr	824
2402	hidnplayr	825	DEBUGF 1,"SOCKET_send: UDP\n"
1159	hidnplayr	826
2573	hidnplayr	827	mov [esp+32], ecx
2402	hidnplayr	828	call UDP_output
2573	hidnplayr	829	cmp eax, -1
		830	je s_error
2402	hidnplayr	831	ret
1159	hidnplayr	832
		833
1536	hidnplayr	834	align 4
		835	SOCKET_send_tcp:
1254	hidnplayr	836
2402	hidnplayr	837	DEBUGF 1,"SOCKET_send: TCP\n"
1254	hidnplayr	838
2402	hidnplayr	839	push eax
		840	add eax, STREAM_SOCKET.snd
		841	call SOCKET_ring_write
		842	pop eax
1536	hidnplayr	843
2621	hidnplayr	844	mov [esp+32], ecx
		845
2402	hidnplayr	846	call TCP_output
		847	ret
1159	hidnplayr	848
1249	hidnplayr	849
1543	hidnplayr	850	align 4
		851	SOCKET_send_ip:
1249	hidnplayr	852
2402	hidnplayr	853	DEBUGF 1,"type: IP\n"
1543	hidnplayr	854
2573	hidnplayr	855	mov [esp+32], ecx
2402	hidnplayr	856	call IPv4_output_raw
2573	hidnplayr	857	cmp eax, -1
		858	je s_error
2402	hidnplayr	859	ret
1543	hidnplayr	860
2573	hidnplayr	861
1541	hidnplayr	862	align 4
		863	SOCKET_send_icmp:
1249	hidnplayr	864
2402	hidnplayr	865	DEBUGF 1,"SOCKET_send: ICMP\n"
1541	hidnplayr	866
2573	hidnplayr	867	mov [esp+32], ecx
2402	hidnplayr	868	call ICMP_output_raw
2573	hidnplayr	869	cmp eax, -1
		870	je s_error
2402	hidnplayr	871	ret
1541	hidnplayr	872
		873
		874
		875
1257	hidnplayr	876	;-----------------------------------------------------------------
1256	clevermous	877	;
1257	hidnplayr	878	; SOCKET_get_options
1256	clevermous	879	;
1514	hidnplayr	880	; IN: ecx = socket number
		881	; edx = pointer to the options:
1257	hidnplayr	882	; dd level, optname, optval, optlen
1256	clevermous	883	; OUT: -1 on error
		884	;
		885	; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP.
		886	; TODO: find best way to notify that send()'ed data were acknowledged
1831	hidnplayr	887	; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*.
1256	clevermous	888	;
1257	hidnplayr	889	;-----------------------------------------------------------------
		890	align 4
1514	hidnplayr	891	SOCKET_get_opt:
1257	hidnplayr	892
2402	hidnplayr	893	DEBUGF 1,"SOCKET_get_opt\n"
1514	hidnplayr	894
2402	hidnplayr	895	call SOCKET_num_to_ptr
		896	jz s_error
1514	hidnplayr	897
2402	hidnplayr	898	cmp dword [edx], IP_PROTO_TCP
		899	jne s_error
		900	cmp dword [edx+4], -2
		901	je @f
		902	cmp dword [edx+4], -3
		903	jne s_error
1299	clevermous	904	@@:
1514	hidnplayr	905	; mov eax, [edx+12]
		906	; test eax, eax
		907	; jz .fail
		908	; cmp dword [eax], 4
		909	; mov dword [eax], 4
		910	; jb .fail
		911	; stdcall net_socket_num_to_addr, ecx
		912	; test eax, eax
		913	; jz .fail
		914	; ; todo: check that eax is really TCP socket
		915	; mov ecx, [eax + TCP_SOCKET.last_ack_number]
		916	; cmp dword [edx+4], -2
		917	; jz @f
		918	; mov ecx, [eax + TCP_SOCKET.state]
1299	clevermous	919	@@:
2402	hidnplayr	920	mov eax, [edx+8]
		921	test eax, eax
		922	jz @f
		923	mov [eax], ecx
1256	clevermous	924	@@:
2402	hidnplayr	925	mov dword [esp+32], 0
		926	ret
1159	hidnplayr	927
		928
1529	hidnplayr	929
2731	hidnplayr	930	;-----------------------------------------------------------------
		931	;
		932	; SOCKET_set_options
		933	;
		934	; IN: ecx = socket number
		935	; edx = pointer to the options:
2877	hidnplayr	936	; dd level, optname, optlen, optval
2731	hidnplayr	937	; OUT: -1 on error
		938	;
		939	;-----------------------------------------------------------------
1542	hidnplayr	940	align 4
		941	SOCKET_set_opt:
		942
2731	hidnplayr	943	DEBUGF 1,"SOCKET_set_opt\n"
		944
		945	call SOCKET_num_to_ptr
		946	jz s_error
		947
2877	hidnplayr	948	cmp dword [edx], SOL_SOCKET
		949	jne s_error
2731	hidnplayr	950
2877	hidnplayr	951	cmp dword [edx+4], SO_BINDTODEVICE
		952	je .bind
2731	hidnplayr	953
2877	hidnplayr	954	jmp s_error
		955
		956	.bind:
		957	cmp dword [edx+8], 0
		958	je .unbind
		959
		960	movzx edx, byte [edx + 9]
		961	cmp edx, MAX_NET_DEVICES
		962	ja s_error
		963
		964	mov edx, [NET_DRV_LIST + 4*edx]
		965	test edx, edx
		966	jz s_error
		967	mov [eax + SOCKET.device], edx
		968
		969	DEBUGF 1,"Bound socket %x to device %x\n",eax, edx
		970
		971	mov dword [esp+32], 0 ; success!
2402	hidnplayr	972	ret
1542	hidnplayr	973
2877	hidnplayr	974	.unbind:
		975	mov [eax + SOCKET.device], 0
1542	hidnplayr	976
2877	hidnplayr	977	mov dword [esp+32], 0 ; success!
		978	ret
1542	hidnplayr	979
2877	hidnplayr	980
		981
1257	hidnplayr	982	;-----------------------------------------------------------------
1206	hidnplayr	983	;
1529	hidnplayr	984	; SOCKET_debug
		985	;
		986	; Copies socket variables to application buffer
		987	;
		988	; IN: ecx = socket number
		989	; edx = pointer to buffer
		990	;
		991	; OUT: -1 on error
		992	;-----------------------------------------------------------------
		993	align 4
		994	SOCKET_debug:
		995
2402	hidnplayr	996	DEBUGF 1,"socket_debug\n"
1529	hidnplayr	997
2402	hidnplayr	998	call SOCKET_num_to_ptr
		999	jz s_error
1529	hidnplayr	1000
2402	hidnplayr	1001	mov esi, eax
		1002	mov edi, edx
		1003	mov ecx, SOCKETBUFFSIZE/4
		1004	rep movsd
1529	hidnplayr	1005
2402	hidnplayr	1006	mov dword [esp+32], 0
		1007	ret
1529	hidnplayr	1008
		1009
		1010	;-----------------------------------------------------------------
		1011	;
1514	hidnplayr	1012	; SOCKET_find_port
1206	hidnplayr	1013	;
1514	hidnplayr	1014	; Fills in the local port number for TCP and UDP sockets
		1015	; This procedure always works because the number of sockets is
		1016	; limited to a smaller number then the number of possible ports
1206	hidnplayr	1017	;
1514	hidnplayr	1018	; IN: eax = socket pointer
		1019	; OUT: /
1206	hidnplayr	1020	;
1257	hidnplayr	1021	;-----------------------------------------------------------------
1206	hidnplayr	1022	align 4
1514	hidnplayr	1023	SOCKET_find_port:
1159	hidnplayr	1024
2402	hidnplayr	1025	DEBUGF 1,"SOCKET_find_port\n"
1159	hidnplayr	1026
2402	hidnplayr	1027	push ebx esi ecx
1514	hidnplayr	1028
2402	hidnplayr	1029	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		1030	je .udp
1159	hidnplayr	1031
2402	hidnplayr	1032	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		1033	je .tcp
1159	hidnplayr	1034
2402	hidnplayr	1035	jmp .error
1514	hidnplayr	1036
		1037	.done:
2402	hidnplayr	1038	mov [eax + UDP_SOCKET.LocalPort], bx
1514	hidnplayr	1039	.error:
2402	hidnplayr	1040	pop ecx esi ebx
		1041	ret
1514	hidnplayr	1042
1206	hidnplayr	1043	.udp:
2402	hidnplayr	1044	mov bx, [last_UDP_port]
		1045	call .findit
		1046	mov [last_UDP_port], bx
		1047	jmp .done
1206	hidnplayr	1048
		1049	.tcp:
2402	hidnplayr	1050	mov bx, [last_TCP_port]
		1051	call .findit
		1052	mov [last_TCP_port], bx
		1053	jmp .done
1206	hidnplayr	1054
		1055
1514	hidnplayr	1056	.restart:
2402	hidnplayr	1057	mov bx, MIN_EPHEMERAL_PORT
1514	hidnplayr	1058	.findit:
2402	hidnplayr	1059	inc bx
1206	hidnplayr	1060
2402	hidnplayr	1061	cmp bx, MAX_EPHEMERAL_PORT
		1062	jz .restart
1206	hidnplayr	1063
2402	hidnplayr	1064	call SOCKET_check_port
		1065	jz .findit
1206	hidnplayr	1066
2402	hidnplayr	1067	ret
1206	hidnplayr	1068
1257	hidnplayr	1069
		1070
		1071	;-----------------------------------------------------------------
1206	hidnplayr	1072	;
1542	hidnplayr	1073	; SOCKET_check_port (to be used with AF_INET only!)
1206	hidnplayr	1074	;
1514	hidnplayr	1075	; Checks if a local port number is unused
		1076	; If the proposed port number is unused, it is filled in in the socket structure
1206	hidnplayr	1077	;
1514	hidnplayr	1078	; IN: eax = socket ptr (to find out if its a TCP/UDP socket)
		1079	; bx = proposed socket number
1206	hidnplayr	1080	;
1514	hidnplayr	1081	; OUT: ZF = cleared on error
		1082	;
1257	hidnplayr	1083	;-----------------------------------------------------------------
1206	hidnplayr	1084	align 4
1514	hidnplayr	1085	SOCKET_check_port:
		1086
2402	hidnplayr	1087	DEBUGF 1,"SOCKET_check_port\n"
1514	hidnplayr	1088
2402	hidnplayr	1089	mov ecx, [eax + SOCKET.Protocol]
2622	hidnplayr	1090	mov edx, [eax + IP_SOCKET.LocalIP]
2402	hidnplayr	1091	mov esi, net_sockets
1206	hidnplayr	1092
		1093	.next_socket:
2402	hidnplayr	1094	mov esi, [esi + SOCKET.NextPtr]
		1095	or esi, esi
		1096	jz .port_ok
1206	hidnplayr	1097
2402	hidnplayr	1098	cmp [esi + SOCKET.Protocol], ecx
		1099	jne .next_socket
1206	hidnplayr	1100
2622	hidnplayr	1101	cmp [esi + IP_SOCKET.LocalIP], edx
		1102	jne .next_socket
		1103
2402	hidnplayr	1104	cmp [esi + UDP_SOCKET.LocalPort], bx
		1105	jne .next_socket
1206	hidnplayr	1106
2402	hidnplayr	1107	DEBUGF 1,"local port %u already in use\n", bx
		1108	ret
1206	hidnplayr	1109
		1110	.port_ok:
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
2402	hidnplayr	1639	DEBUGF 1,"SOCKET_num_to_ptr: %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
2402	hidnplayr	1652	DEBUGF 1,"(%x)\n", eax
1159	hidnplayr	1653	.error:
2402	hidnplayr	1654	ret
1159	hidnplayr	1655
1514	hidnplayr	1656
		1657	;---------------------------------------------------
1159	hidnplayr	1658	;
1514	hidnplayr	1659	; SOCKET_ptr_to_num
1159	hidnplayr	1660	;
1514	hidnplayr	1661	; Get socket number by its address
		1662	;
		1663	; IN: eax = socket ptr
		1664	; OUT: eax = 0 on error, socket num otherwise
		1665	; ZF = set on error
		1666	;
		1667	;---------------------------------------------------
		1668	align 4
		1669	SOCKET_ptr_to_num:
		1670
2402	hidnplayr	1671	DEBUGF 1,"SOCKET_ptr_to_num: %x ", eax
1514	hidnplayr	1672
2402	hidnplayr	1673	call SOCKET_check
		1674	jz .error
1159	hidnplayr	1675
2402	hidnplayr	1676	mov eax, [eax + SOCKET.Number]
1514	hidnplayr	1677
2402	hidnplayr	1678	DEBUGF 1,"(%u)\n", eax
1514	hidnplayr	1679
		1680	.error:
2402	hidnplayr	1681	ret
1514	hidnplayr	1682
		1683
		1684	;---------------------------------------------------
		1685	;
		1686	; SOCKET_check
		1687	;
		1688	; checks if the given value is really a socket ptr
		1689	;
		1690	; IN: eax = socket ptr
		1691	; OUT: eax = 0 on error, unchanged otherwise
		1692	; ZF = set on error
		1693	;
		1694	;---------------------------------------------------
		1695	align 4
		1696	SOCKET_check:
		1697
2402	hidnplayr	1698	DEBUGF 1,"SOCKET_check: %x\n", eax
1514	hidnplayr	1699
2402	hidnplayr	1700	push ebx
		1701	mov ebx, net_sockets
1514	hidnplayr	1702
1159	hidnplayr	1703	.next_socket:
2402	hidnplayr	1704	mov ebx, [ebx + SOCKET.NextPtr]
		1705	or ebx, ebx
		1706	jz .done
		1707	cmp ebx, eax
		1708	jnz .next_socket
1159	hidnplayr	1709
1514	hidnplayr	1710	.done:
2402	hidnplayr	1711	mov eax, ebx
		1712	test eax, eax
		1713	pop ebx
1514	hidnplayr	1714
2402	hidnplayr	1715	ret
1159	hidnplayr	1716
1514	hidnplayr	1717
		1718
		1719	;---------------------------------------------------
		1720	;
		1721	; SOCKET_check_owner
		1722	;
		1723	; checks if the caller application owns the socket
		1724	;
		1725	; IN: eax = socket ptr
		1726	; OUT: ZF = true/false
		1727	;
		1728	;---------------------------------------------------
		1729	align 4
		1730	SOCKET_check_owner:
		1731
2402	hidnplayr	1732	DEBUGF 1,"SOCKET_check_owner: %x\n", eax
1514	hidnplayr	1733
2402	hidnplayr	1734	push ebx
		1735	mov ebx, [TASK_BASE]
		1736	mov ebx, [ecx + TASKDATA.pid]
		1737	cmp [eax + SOCKET.PID], ebx
		1738	pop ebx
1514	hidnplayr	1739
2402	hidnplayr	1740	ret
1514	hidnplayr	1741
		1742
		1743
		1744
1885	hidnplayr	1745	;------------------------------------------------------
1514	hidnplayr	1746	;
		1747	; SOCKET_process_end
		1748	;
		1749	; Kernel calls this function when a certain process ends
		1750	; This function will check if the process had any open sockets
		1751	; And update them accordingly
		1752	;
2867	hidnplayr	1753	; IN: edx = pid
1514	hidnplayr	1754	; OUT: /
		1755	;
		1756	;------------------------------------------------------
		1757	align 4
		1758	SOCKET_process_end:
		1759
2867	hidnplayr	1760	DEBUGF 1,"SOCKET_process_end: %x\n", edx
1514	hidnplayr	1761
2402	hidnplayr	1762	push ebx
		1763	mov ebx, net_sockets
1514	hidnplayr	1764
		1765	.next_socket:
2402	hidnplayr	1766	mov ebx, [ebx + SOCKET.NextPtr]
1514	hidnplayr	1767	.test_socket:
2402	hidnplayr	1768	test ebx, ebx
		1769	jz .done
1514	hidnplayr	1770
2867	hidnplayr	1771	cmp [ebx + SOCKET.PID], edx
2402	hidnplayr	1772	jne .next_socket
1514	hidnplayr	1773
2868	hidnplayr	1774	DEBUGF 1,"killing socket %x\n", ebx
1514	hidnplayr	1775
2402	hidnplayr	1776	mov [ebx + SOCKET.PID], 0
1514	hidnplayr	1777
2402	hidnplayr	1778	cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP
		1779	je .tcp
1514	hidnplayr	1780
2629	hidnplayr	1781	; The socket is stateless, just kill it right away!
1514	hidnplayr	1782
2402	hidnplayr	1783	mov eax, ebx
		1784	mov ebx, [ebx + SOCKET.NextPtr]
		1785	call SOCKET_free
		1786	jmp .test_socket
1514	hidnplayr	1787
		1788	.tcp:
2629	hidnplayr	1789	push [ebx + SOCKET.NextPtr]
		1790	mov eax, ebx
2869	hidnplayr	1791	call TCP_disconnect
2629	hidnplayr	1792	pop ebx
		1793	jmp .test_socket
1885	hidnplayr	1794
1514	hidnplayr	1795	.done:
2402	hidnplayr	1796	pop ebx
1514	hidnplayr	1797
2402	hidnplayr	1798	ret
1773	hidnplayr	1799
		1800
		1801
		1802
1885	hidnplayr	1803	;-----------------------------------------------------------------
		1804	;
		1805	; SOCKET_is_connecting
		1806	;
		1807	; IN: eax = socket ptr
		1808	; OUT: /
		1809	;
		1810	;-----------------------------------------------------------------
1773	hidnplayr	1811
1885	hidnplayr	1812	align 4
		1813	SOCKET_is_connecting:
1773	hidnplayr	1814
		1815
2402	hidnplayr	1816	and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING)
		1817	or [eax + SOCKET.options], SS_ISCONNECTING
1773	hidnplayr	1818
2402	hidnplayr	1819	jmp SOCKET_notify_owner
1885	hidnplayr	1820
		1821
		1822
1773	hidnplayr	1823	;-----------------------------------------------------------------
		1824	;
1885	hidnplayr	1825	; SOCKET_is_connected
		1826	;
		1827	; IN: eax = socket ptr
		1828	; OUT: /
		1829	;
		1830	;-----------------------------------------------------------------
		1831
		1832	align 4
		1833	SOCKET_is_connected:
		1834
		1835
2402	hidnplayr	1836	and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING)
		1837	or [eax + SOCKET.options], SS_ISCONNECTED
1885	hidnplayr	1838
2402	hidnplayr	1839	jmp SOCKET_notify_owner
1885	hidnplayr	1840
		1841
		1842
		1843
		1844	;-----------------------------------------------------------------
		1845	;
1773	hidnplayr	1846	; SOCKET_is_disconnecting
		1847	;
		1848	; IN: eax = socket ptr
		1849	; OUT: /
		1850	;
		1851	;-----------------------------------------------------------------
		1852
		1853	align 4
		1854	SOCKET_is_disconnecting:
		1855
2402	hidnplayr	1856	and [eax + SOCKET.options], not (SS_ISCONNECTING)
		1857	or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE
1773	hidnplayr	1858
2402	hidnplayr	1859	jmp SOCKET_notify_owner
1773	hidnplayr	1860
		1861
		1862
		1863	;-----------------------------------------------------------------
		1864	;
		1865	; SOCKET_is_disconnected
		1866	;
		1867	; IN: eax = socket ptr
		1868	; OUT: /
		1869	;
		1870	;-----------------------------------------------------------------
		1871
		1872	align 4
		1873	SOCKET_is_disconnected:
		1874
2402	hidnplayr	1875	and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING)
		1876	or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE
1773	hidnplayr	1877
2402	hidnplayr	1878	jmp SOCKET_notify_owner
1774	hidnplayr	1879
		1880
		1881	;-----------------------------------------------------------------
		1882	;
		1883	; SOCKET_cant_recv_more
		1884	;
		1885	; IN: eax = socket ptr
		1886	; OUT: /
		1887	;
		1888	;-----------------------------------------------------------------
		1889
		1890	align 4
		1891	SOCKET_cant_recv_more:
		1892
2402	hidnplayr	1893	or [eax + SOCKET.options], SS_CANTRCVMORE
1885	hidnplayr	1894
2402	hidnplayr	1895	ret
1831	hidnplayr	1896
		1897
		1898
		1899	;-----------------------------------------------------------------
		1900	;
1885	hidnplayr	1901	; SOCKET_cant_send_more
1831	hidnplayr	1902	;
		1903	; IN: eax = socket ptr
		1904	; OUT: /
		1905	;
		1906	;-----------------------------------------------------------------
		1907
		1908	align 4
1885	hidnplayr	1909	SOCKET_cant_send_more:
1831	hidnplayr	1910
2402	hidnplayr	1911	or [eax + SOCKET.options], SS_CANTSENDMORE
1831	hidnplayr	1912
2402	hidnplayr	1913	ret

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(root)/kernel/branches/net/network/socket.inc @ 2995 – Rev 2890