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

Rev	Author	Line No.	Line
3545	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; Part of the TCP/IP network stack for KolibriOS ;;
		7	;; ;;
		8	;; Written by hidnplayr@kolibrios.org, ;;
		9	;; and Clevermouse. ;;
		10	;; ;;
		11	;; Based on code by mike.dld ;;
		12	;; ;;
		13	;; GNU GENERAL PUBLIC LICENSE ;;
		14	;; Version 2, June 1991 ;;
		15	;; ;;
		16	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		17
		18	$Revision: 3514 $
		19
		20
		21	struct SOCKET
		22
		23	NextPtr dd ? ; pointer to next socket in list
		24	PrevPtr dd ? ; pointer to previous socket in list
		25	Number dd ? ; socket number
		26
		27	mutex MUTEX
		28
		29	PID dd ? ; process ID
		30	TID dd ? ; thread ID
		31	Domain dd ? ; INET/LOCAL/..
		32	Type dd ? ; RAW/STREAM/DGRAP
		33	Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP
		34	errorcode dd ?
		35	device dd ? ; driver pointer, socket pointer if it's an LOCAL socket
		36
		37	options dd ?
		38	state dd ?
		39	backlog dw ? ; how many incoming connections that can be queued
		40
		41	snd_proc dd ?
		42	rcv_proc dd ?
		43
		44	ends
		45
		46	struct IP_SOCKET SOCKET
		47
		48	LocalIP rd 4 ; network byte order
		49	RemoteIP rd 4 ; network byte order
		50
		51	ends
		52
		53	struct TCP_SOCKET IP_SOCKET
		54
		55	LocalPort dw ? ; network byte order
		56	RemotePort dw ? ; network byte order
		57
		58	t_state dd ? ; TCB state
		59	t_rxtshift db ?
		60	rb 3 ; align
		61	t_rxtcur dd ?
		62	t_dupacks dd ?
		63	t_maxseg dd ?
		64	t_force dd ?
		65	t_flags dd ?
		66
		67	;---------------
		68	; RFC783 page 21
		69
		70	; send sequence
		71	SND_UNA dd ? ; sequence number of unack'ed sent Packets
		72	SND_NXT dd ? ; next send sequence number to use
		73	SND_UP dd ? ; urgent pointer
		74	SND_WL1 dd ? ; window minus one
		75	SND_WL2 dd ? ;
		76	ISS dd ? ; initial send sequence number
		77	SND_WND dd ? ; send window
		78
		79	; receive sequence
		80	RCV_WND dd ? ; receive window
		81	RCV_NXT dd ? ; next receive sequence number to use
		82	RCV_UP dd ? ; urgent pointer
		83	IRS dd ? ; initial receive sequence number
		84
		85	;---------------------
		86	; Additional variables
		87
		88	; receive variables
		89	RCV_ADV dd ?
		90
		91	; retransmit variables
		92	SND_MAX dd ?
		93
		94	; congestion control
		95	SND_CWND dd ?
		96	SND_SSTHRESH dd ?
		97
		98	;----------------------
		99	; Transmit timing stuff
		100	t_idle dd ?
		101	t_rtt dd ?
		102	t_rtseq dd ?
		103	t_srtt dd ?
		104	t_rttvar dd ?
		105	t_rttmin dd ?
		106	max_sndwnd dd ?
		107
		108	;-----------------
		109	; Out-of-band data
		110	t_oobflags dd ?
		111	t_iobc dd ?
		112	t_softerror dd ?
		113
		114
		115	;---------
		116	; RFC 1323 ; the order of next 4 elements may not change
		117
		118	SND_SCALE db ?
		119	RCV_SCALE db ?
		120	requested_s_scale db ?
		121	request_r_scale db ?
		122
		123	ts_recent dd ? ; a copy of the most-recent valid timestamp from the other end
		124	ts_recent_age dd ?
		125	last_ack_sent dd ?
		126
		127
		128	;-------
		129	; Timers
		130	timer_retransmission dd ? ; rexmt
		131	timer_persist dd ?
		132	timer_keepalive dd ? ; keepalive/syn timeout
		133	timer_timed_wait dd ? ; also used as 2msl timer
		134
		135	; extra
		136
		137	ts_ecr dd ? ; timestamp echo reply
		138	ts_val dd ?
		139
		140	seg_next dd ? ; re-assembly queue
		141
		142	temp_bits db ?
		143	rb 3 ; align
		144
		145	ends
		146
		147	struct UDP_SOCKET IP_SOCKET
		148
		149	LocalPort dw ? ; network byte order
		150	RemotePort dw ? ; network byte order
		151	firstpacket db ?
		152
		153	ends
		154
		155
		156	struct ICMP_SOCKET IP_SOCKET
		157
		158	Identifier dw ?
		159
		160	ends
		161
		162
		163	struct RING_BUFFER
		164
		165	mutex MUTEX
		166	start_ptr dd ? ; Pointer to start of buffer
		167	end_ptr dd ? ; pointer to end of buffer
		168	read_ptr dd ? ; Read pointer
		169	write_ptr dd ? ; Write pointer
		170	size dd ? ; Number of bytes buffered
		171
		172	ends
		173
		174	struct STREAM_SOCKET TCP_SOCKET
		175
		176	rcv RING_BUFFER
		177	snd RING_BUFFER
		178
		179	ends
		180
		181	struct socket_queue_entry
		182
		183	data_ptr dd ?
		184	buf_ptr dd ?
		185	data_size dd ?
		186
		187	ends
		188
		189
		190	SOCKETBUFFSIZE = 4096 ; in bytes
		191
		192	SOCKET_QUEUE_SIZE = 10 ; maximum number of incoming packets queued for 1 socket
		193	; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start
		194	SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue)
		195
		196	uglobal
		197	net_sockets rd 4
		198	last_socket_num dd ?
		199	last_UDP_port dw ? ; These values give the number of the last used ephemeral port
		200	last_TCP_port dw ? ;
		201	endg
		202
		203
		204	;-----------------------------------------------------------------
		205	;
		206	; SOCKET_init
		207	;
		208	;-----------------------------------------------------------------
		209	macro SOCKET_init {
		210
		211	xor eax, eax
		212	mov edi, net_sockets
		213	mov ecx, 5
		214	rep stosd
		215
		216	@@:
		217	pseudo_random eax
		218	cmp ax, MIN_EPHEMERAL_PORT
		219	jb @r
		220	cmp ax, MAX_EPHEMERAL_PORT
		221	ja @r
		222	xchg al, ah
		223	mov [last_UDP_port], ax
		224
		225	@@:
		226	pseudo_random eax
		227	cmp ax, MIN_EPHEMERAL_PORT
		228	jb @r
		229	cmp ax, MAX_EPHEMERAL_PORT
		230	ja @r
		231	xchg al, ah
		232	mov [last_TCP_port], ax
		233
		234	}
		235
		236	;-----------------------------------------------------------------
		237	;
		238	; Socket API (function 74)
		239	;
		240	;-----------------------------------------------------------------
		241	align 4
		242	sys_socket:
		243
		244	cmp ebx, 255
		245	jz SOCKET_debug
		246
		247	cmp ebx, .number
		248	ja s_error
		249	jmp dword [.table + 4*ebx]
		250
		251	.table:
		252	dd SOCKET_open ; 0
		253	dd SOCKET_close ; 1
		254	dd SOCKET_bind ; 2
		255	dd SOCKET_listen ; 3
		256	dd SOCKET_connect ; 4
		257	dd SOCKET_accept ; 5
		258	dd SOCKET_send ; 6
		259	dd SOCKET_receive ; 7
		260	dd SOCKET_set_opt ; 8
		261	dd SOCKET_get_opt ; 9
		262	dd SOCKET_pair ; 10
		263	.number = ($ - .table) / 4 - 1
		264
		265	s_error:
3556	hidnplayr	266	DEBUGF DEBUG_NETWORK_ERROR, "SOCKET: error\n"
3545	hidnplayr	267	mov dword [esp+32], -1
		268
		269	ret
		270
		271	;-----------------------------------------------------------------
		272	;
		273	; SOCKET_open
		274	;
		275	; IN: domain in ecx
		276	; type in edx
		277	; protocol in esi
		278	; OUT: eax is socket num, -1 on error
		279	;
		280	;-----------------------------------------------------------------
		281	align 4
		282	SOCKET_open:
		283
3556	hidnplayr	284	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_open: domain=%u type=%u protocol=%x ", ecx, edx, esi
3545	hidnplayr	285
		286	push ecx edx esi
		287	call SOCKET_alloc
		288	pop esi edx ecx
		289	jz s_error
		290
		291	mov [esp+32], edi ; return socketnumber
3556	hidnplayr	292	DEBUGF DEBUG_NETWORK_VERBOSE, "socknum=%u\n", edi
3545	hidnplayr	293
		294	; push edx
		295	; and edx, SO_NONBLOCK
		296	or [eax + SOCKET.options], SO_NONBLOCK ;edx
		297	; pop edx
		298	; and edx, not SO_NONBLOCK
		299
		300	mov [eax + SOCKET.Domain], ecx
		301	mov [eax + SOCKET.Type], edx
		302	mov [eax + SOCKET.Protocol], esi
		303
		304	cmp ecx, AF_INET4
		305	jne .no_inet4
		306
		307	cmp edx, SOCK_DGRAM
		308	je .udp
		309
		310	cmp edx, SOCK_STREAM
		311	je .tcp
		312
		313	cmp edx, SOCK_RAW
		314	je .raw
		315
		316	.no_inet4:
		317	cmp ecx, AF_PPP
		318	jne .no_ppp
		319
		320	cmp esi, PPP_PROTO_ETHERNET
		321	je .pppoe
		322
		323	.no_ppp:
3556	hidnplayr	324	DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_open: Unknown socket family/protocol\n"
3545	hidnplayr	325	ret
		326
		327	align 4
		328	.raw:
		329	test esi, esi ; IP_PROTO_IP
		330	jz .ip
		331
		332	cmp esi, IP_PROTO_ICMP
		333	je .icmp
		334
		335	cmp esi, IP_PROTO_UDP
		336	je .udp
		337
		338	cmp esi, IP_PROTO_TCP
		339	je .tcp
		340
		341	ret
		342
		343	align 4
		344	.udp:
		345	mov [eax + SOCKET.Protocol], IP_PROTO_UDP
		346	mov [eax + SOCKET.snd_proc], SOCKET_send_udp
		347	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		348	ret
		349
		350	align 4
		351	.tcp:
		352	mov [eax + SOCKET.Protocol], IP_PROTO_TCP
		353	mov [eax + SOCKET.snd_proc], SOCKET_send_tcp
		354	mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream
		355
		356	TCP_init_socket eax
		357	ret
		358
		359
		360	align 4
		361	.ip:
		362	mov [eax + SOCKET.snd_proc], SOCKET_send_ip
		363	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		364	ret
		365
		366
		367	align 4
		368	.icmp:
		369	mov [eax + SOCKET.snd_proc], SOCKET_send_icmp
		370	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		371	ret
		372
		373	align 4
		374	.pppoe:
		375	push eax
		376	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		377	pop eax
		378
		379	mov [eax + SOCKET.snd_proc], SOCKET_send_pppoe
		380	mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram
		381	ret
		382
		383
		384	;-----------------------------------------------------------------
		385	;
		386	; SOCKET_bind
		387	;
		388	; IN: socket number in ecx
		389	; pointer to sockaddr struct in edx
		390	; length of that struct in esi
		391	; OUT: 0 on success
		392	;
		393	;-----------------------------------------------------------------
		394	align 4
		395	SOCKET_bind:
		396
3556	hidnplayr	397	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi
3545	hidnplayr	398
		399	call SOCKET_num_to_ptr
		400	jz s_error
		401
		402	cmp esi, 2
		403	jb s_error
		404
		405	cmp word [edx], AF_INET4
		406	je .af_inet4
		407
		408	cmp word [edx], AF_LOCAL
		409	je .af_local
		410
		411	jmp s_error
		412
		413	.af_local:
		414	; TODO: write code here
		415
		416	mov dword [esp+32], 0
		417	ret
		418
		419	.af_inet4:
		420
		421	cmp esi, 6
		422	jb s_error
		423
		424	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		425	je .udp
		426
		427	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		428	je .tcp
		429
		430	jmp s_error
		431
		432	.tcp:
		433	.udp:
		434
		435	mov ebx, [edx + 4] ; First, fill in the IP
		436	test ebx, ebx ; If IP is 0, use default
		437	jnz @f
		438	mov ebx, [NET_DEFAULT]
		439	mov ebx, [IP_LIST + 4*ebx]
		440	@@:
		441	mov [eax + IP_SOCKET.LocalIP], ebx
		442
		443	mov bx, [edx + 2] ; Now fill in the local port if it's still available
		444	call SOCKET_check_port
		445	jz s_error ; ZF is set by socket_check_port, on error
		446
3556	hidnplayr	447	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: local ip=%u.%u.%u.%u\n",\
3545	hidnplayr	448	[eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\
		449	[eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1
		450
		451	mov dword [esp+32], 0
		452	ret
		453
		454
		455
		456
		457	;-----------------------------------------------------------------
		458	;
		459	; SOCKET_connect
		460	;
		461	; IN: socket number in ecx
		462	; pointer to sockaddr struct in edx
		463	; length of that struct in esi
		464	; OUT: 0 on success
		465	;
		466	;-----------------------------------------------------------------
		467	align 4
		468	SOCKET_connect:
		469
3556	hidnplayr	470	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_connect: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi
3545	hidnplayr	471
		472	call SOCKET_num_to_ptr
		473	jz s_error
		474
		475	cmp esi, 8
		476	jb s_error
		477
		478	cmp word [edx], AF_INET4
		479	je .af_inet4
		480
		481	jmp s_error
		482
		483	.af_inet4:
		484	cmp [eax + IP_SOCKET.LocalIP], 0
		485	jne @f
		486	push [IP_LIST] ; FIXME
		487	pop [eax + IP_SOCKET.LocalIP]
		488	@@:
		489
		490	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		491	je .udp
		492
		493	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		494	je .tcp
		495
		496	cmp [eax + SOCKET.Protocol], IP_PROTO_IP
		497	je .ip
		498
		499	cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP
		500	je .ip
		501
		502	jmp s_error
		503
		504	align 4
		505	.udp:
		506	pusha
		507	lea ecx, [eax + SOCKET.mutex]
		508	call mutex_lock
		509	popa
		510
		511	pushw [edx + 2]
		512	pop [eax + UDP_SOCKET.RemotePort]
		513
		514	pushd [edx + 4]
		515	pop [eax + IP_SOCKET.RemoteIP]
		516
		517	cmp [eax + UDP_SOCKET.LocalPort], 0
		518	jne @f
		519	call SOCKET_find_port
		520	@@:
		521
		522	mov [eax + UDP_SOCKET.firstpacket], 0
		523
		524	push eax
		525	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		526	pop eax
		527
		528	lea ecx, [eax + SOCKET.mutex]
		529	call mutex_unlock
		530
		531	mov dword [esp+32], 0
		532	ret
		533
		534	align 4
		535	.tcp:
		536	pusha
		537	lea ecx, [eax + SOCKET.mutex]
		538	call mutex_lock
		539	popa
		540
		541	pushw [edx + 2]
		542	pop [eax + TCP_SOCKET.RemotePort]
		543
		544	pushd [edx + 4]
		545	pop [eax + IP_SOCKET.RemoteIP]
		546
		547	cmp [eax + TCP_SOCKET.LocalPort], 0
		548	jne @f
		549	call SOCKET_find_port
		550	@@:
		551
		552	mov [eax + TCP_SOCKET.timer_persist], 0
		553	mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT
		554
		555	push [TCP_sequence_num]
		556	add [TCP_sequence_num], 6400
		557	pop [eax + TCP_SOCKET.ISS]
		558	mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init
		559
		560
		561	TCP_sendseqinit eax
		562
		563	; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer
		564
		565	mov ebx, eax
		566
		567	lea eax, [ebx + STREAM_SOCKET.snd]
		568	call SOCKET_ring_create
		569
		570	lea eax, [ebx + STREAM_SOCKET.rcv]
		571	call SOCKET_ring_create
		572
		573	pusha
		574	lea ecx, [ebx + SOCKET.mutex]
		575	call mutex_unlock
		576	popa
		577
		578	mov eax, ebx
		579	call TCP_output
		580
		581	;;; TODO: wait for successfull connection if blocking socket
		582
		583	mov dword [esp+32], 0
		584	ret
		585
		586	align 4
		587	.ip:
		588	pusha
		589	lea ecx, [eax + SOCKET.mutex]
		590	call mutex_lock
		591	popa
		592
		593	pushd [edx + 4]
		594	pop [eax + IP_SOCKET.RemoteIP]
		595
		596	push eax
		597	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue
		598	pop eax
		599
		600	lea ecx, [eax + SOCKET.mutex]
		601	call mutex_unlock
		602
		603	mov dword [esp+32], 0
		604	ret
		605
		606
		607	;-----------------------------------------------------------------
		608	;
		609	; SOCKET_listen
		610	;
		611	; IN: socket number in ecx
		612	; backlog in edx
		613	; OUT: eax is socket num, -1 on error
		614	;
		615	;-----------------------------------------------------------------
		616	align 4
		617	SOCKET_listen:
		618
3556	hidnplayr	619	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_listen: socknum=%u backlog=%u\n", ecx, edx
3545	hidnplayr	620
		621	call SOCKET_num_to_ptr
		622	jz s_error
		623
		624	cmp [eax + SOCKET.Domain], AF_INET4
		625	jne s_error
		626
		627	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		628	jne s_error
		629
		630	cmp [eax + TCP_SOCKET.LocalPort], 0
		631	je s_error
		632
		633	cmp [eax + IP_SOCKET.LocalIP], 0
		634	jne @f
		635	push [IP_LIST]
		636	pop [eax + IP_SOCKET.LocalIP]
		637	@@:
		638
		639	cmp edx, MAX_backlog
		640	jbe @f
		641	mov edx, MAX_backlog
		642	@@:
		643
		644	mov [eax + SOCKET.backlog], dx
		645	or [eax + SOCKET.options], SO_ACCEPTCON
		646	mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN
		647	mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer
		648
		649	push eax
		650	init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue
		651	pop eax
		652
		653	mov dword [esp+32], 0
		654
		655	ret
		656
		657
		658	;-----------------------------------------------------------------
		659	;
		660	; SOCKET_accept
		661	;
		662	; IN: socket number in ecx
		663	; addr in edx
		664	; addrlen in esi
		665	; OUT: eax is socket num, -1 on error
		666	;
		667	;-----------------------------------------------------------------
		668	align 4
		669	SOCKET_accept:
		670
3556	hidnplayr	671	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_accept: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi
3545	hidnplayr	672
		673	call SOCKET_num_to_ptr
		674	jz s_error
		675
		676	test [eax + SOCKET.options], SO_ACCEPTCON
		677	jz s_error
		678
		679	cmp [eax + SOCKET.Domain], AF_INET4
		680	jne s_error
		681
		682	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		683	jne s_error
		684
		685	.loop:
		686	get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .block
		687
		688	; Ok, we got a socket ptr
		689	mov eax, [esi]
		690
		691	; Change thread ID to that of the current thread
		692	mov ebx, [TASK_BASE]
		693	mov ebx, [ebx + TASKDATA.pid]
		694	mov [eax + SOCKET.TID], ebx
		695
		696	; Convert it to a socket number
		697	call SOCKET_ptr_to_num
		698	jz s_error
		699	; and return it to caller
		700	mov [esp+32], eax
		701	ret
		702
		703	.block:
		704	test [eax + SOCKET.options], SO_NONBLOCK
		705	jnz s_error
		706
		707	call SOCKET_block
		708	jmp .loop
		709
		710	;-----------------------------------------------------------------
		711	;
		712	; SOCKET_close
		713	;
		714	; IN: socket number in ecx
		715	; OUT: eax is socket num, -1 on error
		716	;
		717	;-----------------------------------------------------------------
		718	align 4
		719	SOCKET_close:
		720
3556	hidnplayr	721	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_close: socknum=%u\n", ecx
3545	hidnplayr	722
		723	call SOCKET_num_to_ptr
		724	jz s_error
		725
		726	mov dword [esp+32], 0 ; The socket exists, so we will succeed in closing it.
		727
		728	.socket:
		729	or [eax + SOCKET.options], SO_NONBLOCK ; Mark the socket as non blocking, we dont want it to block any longer!
		730
		731	test [eax + SOCKET.state], SS_BLOCKED ; Is the socket still in blocked state?
		732	jz @f
		733	call SOCKET_notify.unblock ; Unblock it.
		734	@@:
		735
		736	cmp [eax + SOCKET.Domain], AF_INET4
		737	jne .free
		738
		739	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		740	je .tcp
		741
		742	.free:
		743	call SOCKET_free
		744	ret
		745
		746	.tcp:
		747	cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED
		748	jb .free
		749
		750	call TCP_usrclosed
		751	call TCP_output ;;;; Fixme: is this nescessary??
		752
		753	ret
		754
		755
		756	;-----------------------------------------------------------------
		757	;
		758	; SOCKET_receive
		759	;
		760	; IN: socket number in ecx
		761	; addr to buffer in edx
		762	; length of buffer in esi
		763	; flags in edi
		764	; OUT: eax is number of bytes copied, -1 on error
		765	;
		766	;-----------------------------------------------------------------
		767	align 4
		768	SOCKET_receive:
		769
3556	hidnplayr	770	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: socknum=%u bufaddr=%x buflength=%u flags=%x\n", ecx, edx, esi, edi
3545	hidnplayr	771
		772	call SOCKET_num_to_ptr
		773	jz s_error
		774
		775	jmp [eax + SOCKET.rcv_proc]
		776
		777
		778	align 4
		779	SOCKET_receive_dgram:
		780
3556	hidnplayr	781	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: DGRAM\n"
3545	hidnplayr	782
		783	mov ebx, esi
		784	mov edi, edx ; addr to buffer
		785
		786	.loop:
		787	get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, .block ; destroys esi and ecx
		788
		789	mov ecx, [esi + socket_queue_entry.data_size]
3556	hidnplayr	790	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: %u bytes data\n", ecx
3545	hidnplayr	791
		792	cmp ecx, ebx
		793	ja .too_small
		794
		795	push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later
		796	mov esi, [esi + socket_queue_entry.data_ptr]
3556	hidnplayr	797	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: Source buffer=%x real addr=%x\n", [esp], esi
3545	hidnplayr	798	mov [esp+32+4], ecx ; return number of bytes copied
		799
		800	; copy the data
		801	shr ecx, 1
		802	jnc .nb
		803	movsb
		804	.nb:
		805	shr ecx, 1
		806	jnc .nw
		807	movsw
		808	.nw:
		809	test ecx, ecx
		810	jz .nd
		811	rep movsd
		812	.nd:
		813
		814	call kernel_free ; remove the packet
		815	ret
		816
		817	.too_small:
		818
3556	hidnplayr	819	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: Buffer too small\n"
3545	hidnplayr	820	jmp s_error
		821
		822	.block:
		823	test [eax + SOCKET.options], SO_NONBLOCK
		824	jnz s_error
		825
		826	call SOCKET_block
		827	jmp .loop
		828
		829
		830	align 4
		831	SOCKET_receive_local:
		832
		833	; does this socket have a PID yet?
		834	cmp [eax + SOCKET.PID], 0
		835	jne @f
		836
		837	; Change PID to that of current process
		838	mov ebx, [TASK_BASE]
		839	mov ebx, [ebx + TASKDATA.pid]
		840	mov [eax + SOCKET.PID], ebx
		841	mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :(
		842	@@:
		843
		844	mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream
		845
		846	align 4
		847	SOCKET_receive_stream:
		848
3556	hidnplayr	849	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: STREAM\n"
3545	hidnplayr	850
		851	mov ebx, edi
		852	mov ecx, esi
		853	mov edi, edx
		854	xor edx, edx
		855
		856	test ebx, MSG_DONTWAIT
		857	jnz .dontwait
		858	.loop:
		859	cmp [eax + STREAM_SOCKET.rcv + RING_BUFFER.size], 0
		860	je .block
		861	.dontwait:
		862	test ebx, MSG_PEEK
		863	jnz .peek
		864
		865	add eax, STREAM_SOCKET.rcv
		866	call SOCKET_ring_read
		867	call SOCKET_ring_free
		868
		869	mov [esp+32], ecx ; return number of bytes copied
		870	ret
		871
		872	.peek:
		873	mov ecx, [eax + STREAM_SOCKET.rcv + RING_BUFFER.size]
		874	mov [esp+32], ecx ; return number of bytes available
		875	ret
		876
		877	.block:
		878	test [eax + SOCKET.options], SO_NONBLOCK
		879	jnz .return0
		880
		881	call SOCKET_block
		882	jmp .loop
		883
		884	.return0:
		885	xor ecx, ecx
		886	mov [esp+32], ecx
		887	ret
		888
		889
		890	;-----------------------------------------------------------------
		891	;
		892	; SOCKET_send
		893	;
		894	;
		895	; IN: socket number in ecx
		896	; pointer to data in edx
		897	; datalength in esi
		898	; flags in edi
		899	; OUT: -1 on error
		900	;
		901	;-----------------------------------------------------------------
		902	align 4
		903	SOCKET_send:
		904
3556	hidnplayr	905	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: socknum=%u data ptr=%x length=%u flags=%x\n", ecx, edx, esi, edi
3545	hidnplayr	906
		907	call SOCKET_num_to_ptr
		908	jz s_error
		909
		910	mov ecx, esi
		911	mov esi, edx
		912
		913	jmp [eax + SOCKET.snd_proc]
		914
		915
		916	align 4
		917	SOCKET_send_udp:
		918
3556	hidnplayr	919	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: UDP\n"
3545	hidnplayr	920
		921	mov [esp+32], ecx
		922	call UDP_output
		923	cmp eax, -1
		924	je s_error
		925	ret
		926
		927
		928	align 4
		929	SOCKET_send_tcp:
		930
3556	hidnplayr	931	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: TCP\n"
3545	hidnplayr	932
		933	push eax
		934	add eax, STREAM_SOCKET.snd
		935	call SOCKET_ring_write
		936	pop eax
		937
		938	mov [esp+32], ecx
		939
		940	call TCP_output
		941	ret
		942
		943
		944	align 4
		945	SOCKET_send_ip:
		946
3556	hidnplayr	947	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: IPv4\n"
3545	hidnplayr	948
		949	mov [esp+32], ecx
		950	call IPv4_output_raw
		951	cmp eax, -1
		952	je s_error
		953	ret
		954
		955
		956	align 4
		957	SOCKET_send_icmp:
		958
3556	hidnplayr	959	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: ICMP\n"
3545	hidnplayr	960
		961	mov [esp+32], ecx
		962	call ICMP_output_raw
		963	cmp eax, -1
		964	je s_error
		965	ret
		966
		967
		968	align 4
		969	SOCKET_send_pppoe:
		970
3556	hidnplayr	971	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: PPPoE\n"
3545	hidnplayr	972
		973	mov [esp+32], ecx
		974	mov ebx, [eax + SOCKET.device]
		975
		976	call PPPoE_discovery_output
		977	cmp eax, -1
		978	je s_error
		979	ret
		980
		981
		982
		983	align 4
		984	SOCKET_send_local:
		985
		986	; does this socket have a PID yet?
		987	cmp [eax + SOCKET.PID], 0
		988	jne @f
		989
		990	; Change PID to that of current process
		991	mov ebx, [TASK_BASE]
		992	mov ebx, [ebx + TASKDATA.pid]
		993	mov [eax + SOCKET.PID], ebx
		994	mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :(
		995	@@:
		996	mov [eax + SOCKET.snd_proc], SOCKET_send_local_
		997
		998	align 4
		999	SOCKET_send_local_:
		1000
3556	hidnplayr	1001	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: LOCAL\n"
3545	hidnplayr	1002
		1003	; get the other side's socket and check if it still exists
		1004	mov eax, [eax + SOCKET.device]
		1005	call SOCKET_check
		1006	jz s_error
		1007
		1008	; allright, shove in the data!
		1009	push eax
		1010	add eax, STREAM_SOCKET.rcv
		1011	call SOCKET_ring_write
		1012	pop eax
		1013
		1014	; return the number of written bytes (or errorcode) to application
		1015	mov [esp+32], ecx
		1016
		1017	; and notify the other end
		1018	call SOCKET_notify
		1019
		1020	ret
		1021
		1022
		1023	;-----------------------------------------------------------------
		1024	;
		1025	; SOCKET_get_options
		1026	;
		1027	; IN: ecx = socket number
		1028	; edx = pointer to the options:
		1029	; dd level, optname, optval, optlen
		1030	; OUT: -1 on error
		1031	;
		1032	; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP.
		1033	; TODO: find best way to notify that send()'ed data were acknowledged
		1034	; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*.
		1035	;
		1036	;-----------------------------------------------------------------
		1037	align 4
		1038	SOCKET_get_opt:
		1039
3556	hidnplayr	1040	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_get_opt\n"
3545	hidnplayr	1041
		1042	call SOCKET_num_to_ptr
		1043	jz s_error
		1044
		1045	cmp dword [edx], IP_PROTO_TCP
		1046	jne s_error
		1047	cmp dword [edx+4], -2
		1048	je @f
		1049	cmp dword [edx+4], -3
		1050	jne s_error
		1051	@@:
		1052	; mov eax, [edx+12]
		1053	; test eax, eax
		1054	; jz .fail
		1055	; cmp dword [eax], 4
		1056	; mov dword [eax], 4
		1057	; jb .fail
		1058	; stdcall net_socket_num_to_addr, ecx
		1059	; test eax, eax
		1060	; jz .fail
		1061	; ; todo: check that eax is really TCP socket
		1062	; mov ecx, [eax + TCP_SOCKET.last_ack_number]
		1063	; cmp dword [edx+4], -2
		1064	; jz @f
		1065	; mov ecx, [eax + TCP_SOCKET.state]
		1066	@@:
		1067	mov eax, [edx+8]
		1068	test eax, eax
		1069	jz @f
		1070	mov [eax], ecx
		1071	@@:
		1072	mov dword [esp+32], 0
		1073	ret
		1074
		1075
		1076
		1077	;-----------------------------------------------------------------
		1078	;
		1079	; SOCKET_set_options
		1080	;
		1081	; IN: ecx = socket number
		1082	; edx = pointer to the options:
		1083	; dd level, optname, optlen, optval
		1084	; OUT: -1 on error
		1085	;
		1086	;-----------------------------------------------------------------
		1087	align 4
		1088	SOCKET_set_opt:
		1089
3556	hidnplayr	1090	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt\n"
3545	hidnplayr	1091
		1092	call SOCKET_num_to_ptr
		1093	jz s_error
		1094
		1095	cmp dword [edx], SOL_SOCKET
		1096	jne s_error
		1097
		1098	cmp dword [edx+4], SO_BINDTODEVICE
		1099	je .bind
		1100
		1101	cmp dword [edx+4], SO_BLOCK
		1102	je .block
		1103
		1104	jmp s_error
		1105
		1106	.bind:
		1107	cmp dword [edx+8], 0
		1108	je .unbind
		1109
		1110	movzx edx, byte [edx + 9]
		1111	cmp edx, MAX_NET_DEVICES
		1112	ja s_error
		1113
		1114	mov edx, [NET_DRV_LIST + 4*edx]
		1115	test edx, edx
		1116	jz s_error
		1117	mov [eax + SOCKET.device], edx
		1118
3556	hidnplayr	1119	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt: Bound socket %x to device %x\n",eax, edx
3545	hidnplayr	1120
		1121	mov dword [esp+32], 0 ; success!
		1122	ret
		1123
		1124	.unbind:
		1125	mov [eax + SOCKET.device], 0
		1126
		1127	mov dword [esp+32], 0 ; success!
		1128	ret
		1129
		1130	.block:
		1131	cmp dword [edx+8], 0
		1132	je .unblock
		1133
		1134	and [eax + SOCKET.options], not SO_NONBLOCK
		1135
		1136	mov dword [esp+32], 0 ; success!
		1137	ret
		1138
		1139	.unblock:
		1140	or [eax + SOCKET.options], SO_NONBLOCK
		1141
		1142	mov dword [esp+32], 0 ; success!
		1143	ret
		1144
		1145
		1146
		1147	;-----------------------------------------------------------------
		1148	;
		1149	; SOCKET_pair
		1150	;
		1151	; Allocates a pair of linked LOCAL domain sockets
		1152	;
		1153	; IN: /
		1154	; OUT: eax is socket1 num, -1 on error
		1155	; ebx is socket2 num
		1156	;
		1157	;-----------------------------------------------------------------
		1158	align 4
		1159	SOCKET_pair:
		1160
3556	hidnplayr	1161	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_pair\n"
3545	hidnplayr	1162
		1163	call SOCKET_alloc
		1164	jz s_error
		1165	mov [esp+32], edi ; application's eax
		1166
		1167	mov [eax + SOCKET.Domain], AF_LOCAL
		1168	mov [eax + SOCKET.Type], SOCK_STREAM
		1169	mov [eax + SOCKET.Protocol], 0 ;;; CHECKME
		1170	mov [eax + SOCKET.snd_proc], SOCKET_send_local
		1171	mov [eax + SOCKET.rcv_proc], SOCKET_receive_local
		1172	mov [eax + SOCKET.PID], 0
		1173	mov ebx, eax
		1174
		1175	call SOCKET_alloc
		1176	jz .error
		1177	mov [esp+24], edi ; application's ebx
		1178
		1179	mov [eax + SOCKET.Domain], AF_LOCAL
		1180	mov [eax + SOCKET.Type], SOCK_STREAM
		1181	mov [eax + SOCKET.Protocol], 0 ;;; CHECKME
		1182	mov [eax + SOCKET.snd_proc], SOCKET_send_local
		1183	mov [eax + SOCKET.rcv_proc], SOCKET_receive_local
		1184	mov [eax + SOCKET.PID], 0
		1185
		1186	; Link the two sockets to eachother
		1187	mov [eax + SOCKET.device], ebx
		1188	mov [ebx + SOCKET.device], eax
		1189
		1190	lea eax, [eax + STREAM_SOCKET.rcv]
		1191	call SOCKET_ring_create
		1192
		1193	lea eax, [ebx + STREAM_SOCKET.rcv]
		1194	call SOCKET_ring_create
		1195	pop eax
		1196
		1197	ret
		1198
		1199	.error:
		1200	mov eax, ebx
		1201	call SOCKET_free
		1202	jmp s_error
		1203
		1204
		1205
		1206	;-----------------------------------------------------------------
		1207	;
		1208	; SOCKET_debug
		1209	;
		1210	; Copies socket variables to application buffer
		1211	;
		1212	; IN: ecx = socket number
		1213	; edx = pointer to buffer
		1214	;
		1215	; OUT: -1 on error
		1216	;-----------------------------------------------------------------
		1217	align 4
		1218	SOCKET_debug:
		1219
3556	hidnplayr	1220	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_debug\n"
3545	hidnplayr	1221
		1222	mov edi, edx
		1223
		1224	test ecx, ecx
		1225	jz .returnall
		1226
		1227	call SOCKET_num_to_ptr
		1228	jz s_error
		1229
		1230	mov esi, eax
		1231	mov ecx, SOCKETBUFFSIZE/4
		1232	rep movsd
		1233
		1234	mov dword [esp+32], 0
		1235	ret
		1236
		1237	.returnall:
		1238	mov ebx, net_sockets
		1239	.next_socket:
		1240	mov ebx, [ebx + SOCKET.NextPtr]
		1241	test ebx, ebx
		1242	jz .done
		1243	mov eax, [ebx + SOCKET.Number]
		1244	stosd
		1245	jmp .next_socket
		1246	.done:
		1247	xor eax, eax
		1248	stosd
		1249
		1250	mov dword [esp+32], 0
		1251	ret
		1252
		1253
		1254	;-----------------------------------------------------------------
		1255	;
		1256	; SOCKET_find_port
		1257	;
		1258	; Fills in the local port number for TCP and UDP sockets
		1259	; This procedure always works because the number of sockets is
		1260	; limited to a smaller number then the number of possible ports
		1261	;
		1262	; IN: eax = socket pointer
		1263	; OUT: /
		1264	;
		1265	;-----------------------------------------------------------------
		1266	align 4
		1267	SOCKET_find_port:
		1268
3556	hidnplayr	1269	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_find_port\n"
3545	hidnplayr	1270
		1271	push ebx esi ecx
		1272
		1273	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		1274	je .udp
		1275
		1276	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		1277	je .tcp
		1278
		1279	pop ecx esi ebx
		1280	ret
		1281
		1282	.udp:
		1283	mov bx, [last_UDP_port]
		1284	call .findit
		1285	mov [last_UDP_port], bx
		1286
		1287	pop ecx esi ebx
		1288	ret
		1289
		1290	.tcp:
		1291	mov bx, [last_TCP_port]
		1292	call .findit
		1293	mov [last_TCP_port], bx
		1294
		1295	pop ecx esi ebx
		1296	ret
		1297
		1298
		1299	.restart:
		1300	mov bx, MIN_EPHEMERAL_PORT_N
		1301	.findit:
		1302	cmp bx, MAX_EPHEMERAL_PORT_N
		1303	je .restart
		1304
		1305	add bh, 1
		1306	adc bl, 0
		1307
		1308	call SOCKET_check_port
		1309	jz .findit
		1310	ret
		1311
		1312
		1313
		1314	;-----------------------------------------------------------------
		1315	;
		1316	; SOCKET_check_port (to be used with AF_INET only!)
		1317	;
		1318	; Checks if a local port number is unused
		1319	; If the proposed port number is unused, it is filled in in the socket structure
		1320	;
		1321	; IN: eax = socket ptr (to find out if its a TCP/UDP socket)
		1322	; bx = proposed socket number (network byte order)
		1323	;
		1324	; OUT: ZF = set on error
		1325	;
		1326	;-----------------------------------------------------------------
		1327	align 4
		1328	SOCKET_check_port:
		1329
3556	hidnplayr	1330	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_port: "
3545	hidnplayr	1331
		1332	mov ecx, [eax + SOCKET.Protocol]
		1333	mov edx, [eax + IP_SOCKET.LocalIP]
		1334	mov esi, net_sockets
		1335
		1336	.next_socket:
		1337	mov esi, [esi + SOCKET.NextPtr]
		1338	or esi, esi
		1339	jz .port_ok
		1340
		1341	cmp [esi + SOCKET.Protocol], ecx
		1342	jne .next_socket
		1343
		1344	cmp [esi + IP_SOCKET.LocalIP], edx
		1345	jne .next_socket
		1346
		1347	cmp [esi + UDP_SOCKET.LocalPort], bx
		1348	jne .next_socket
		1349
3556	hidnplayr	1350	DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x already in use\n", bx ; FIXME: find a way to print big endian values with debugf
3545	hidnplayr	1351	ret
		1352
		1353	.port_ok:
3556	hidnplayr	1354	DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x is free\n", bx ; FIXME: find a way to print big endian values with debugf
3545	hidnplayr	1355	mov [eax + UDP_SOCKET.LocalPort], bx
		1356	or bx, bx ; clear the zero-flag
		1357	ret
		1358
		1359
		1360
		1361	;-----------------------------------------------------------------
		1362	;
		1363	; SOCKET_input
		1364	;
		1365	; Updates a (stateless) socket with received data
		1366	;
		1367	; Note: the mutex should already be set !
		1368	;
		1369	; IN: eax = socket ptr
		1370	; ecx = data size
		1371	; esi = ptr to data
		1372	; [esp] = ptr to buf
		1373	; [esp + 4] = buf size
		1374	;
		1375	; OUT: /
		1376	;
		1377	;-----------------------------------------------------------------
		1378	align 4
		1379	SOCKET_input:
		1380
3556	hidnplayr	1381	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx
3545	hidnplayr	1382
		1383	mov [esp+4], ecx
		1384	push esi
		1385	mov esi, esp
		1386
		1387	add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full
		1388
3556	hidnplayr	1389	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: success\n"
3545	hidnplayr	1390	add esp, sizeof.socket_queue_entry
		1391
		1392	pusha
		1393	lea ecx, [eax + SOCKET.mutex]
		1394	call mutex_unlock
		1395	popa
		1396
		1397	jmp SOCKET_notify
		1398
		1399	.full:
3556	hidnplayr	1400	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket %x is full!\n", eax
3545	hidnplayr	1401
		1402	pusha
		1403	lea ecx, [eax + SOCKET.mutex]
		1404	call mutex_unlock
		1405	popa
		1406
		1407	call kernel_free
		1408	add esp, 8
		1409
		1410	ret
		1411
		1412
		1413	;--------------------------
		1414	;
		1415	; eax = ptr to ring struct (just a buffer of the right size)
		1416	;
		1417	align 4
		1418	SOCKET_ring_create:
		1419
		1420	push esi
		1421	mov esi, eax
		1422
		1423	push edx
		1424	stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW
		1425	pop edx
		1426
3556	hidnplayr	1427	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_created: %x\n", eax
3545	hidnplayr	1428
		1429	pusha
		1430	lea ecx, [esi + RING_BUFFER.mutex]
		1431	call mutex_init
		1432	popa
		1433
		1434	mov [esi + RING_BUFFER.start_ptr], eax
		1435	mov [esi + RING_BUFFER.write_ptr], eax
		1436	mov [esi + RING_BUFFER.read_ptr], eax
		1437	mov [esi + RING_BUFFER.size], 0
		1438	add eax, SOCKET_MAXDATA
		1439	mov [esi + RING_BUFFER.end_ptr], eax
		1440	mov eax, esi
		1441	pop esi
		1442
		1443	ret
		1444
		1445	;-----------------------------------------------------------------
		1446	;
		1447	; SOCKET_ring_write
		1448	;
		1449	; Adds data to a stream socket, and updates write pointer and size
		1450	;
		1451	; IN: eax = ptr to ring struct
		1452	; ecx = data size
		1453	; esi = ptr to data
		1454	;
		1455	; OUT: ecx = number of bytes stored
		1456	;
		1457	;-----------------------------------------------------------------
		1458	align 4
		1459	SOCKET_ring_write:
		1460
3556	hidnplayr	1461	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx
3545	hidnplayr	1462
		1463	; lock mutex
		1464	pusha
		1465	lea ecx, [eax + RING_BUFFER.mutex]
		1466	call mutex_lock ; TODO: check what registers this function actually destroys
		1467	popa
		1468
		1469	; calculate available size
		1470	mov edi, SOCKET_MAXDATA
		1471	sub edi, [eax + RING_BUFFER.size] ; available buffer size in edi
		1472	cmp ecx, edi
		1473	jbe .copy
		1474	mov ecx, edi
		1475	.copy:
		1476	mov edi, [eax + RING_BUFFER.write_ptr]
3556	hidnplayr	1477	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi
3545	hidnplayr	1478
		1479	; update write ptr
		1480	push edi
		1481	add edi, ecx
		1482	cmp edi, [eax + RING_BUFFER.end_ptr]
		1483	jb @f
		1484	sub edi, SOCKET_MAXDATA ; WRAP
		1485	@@:
		1486	mov [eax + RING_BUFFER.write_ptr], edi
		1487	pop edi
		1488
		1489	; update size
		1490	add [eax + RING_BUFFER.size], ecx
		1491
		1492	; copy the data
		1493	push ecx
		1494	shr ecx, 1
		1495	jnc .nb
		1496	movsb
		1497	.nb:
		1498	shr ecx, 1
		1499	jnc .nw
		1500	movsw
		1501	.nw:
		1502	test ecx, ecx
		1503	jz .nd
		1504	rep movsd
		1505	.nd:
		1506	pop ecx
		1507
		1508	; unlock mutex
		1509	push eax ecx
		1510	lea ecx, [eax + RING_BUFFER.mutex]
		1511	call mutex_unlock ; TODO: check what registers this function actually destroys
		1512	pop ecx eax
		1513
		1514	ret
		1515
		1516	;-----------------------------------------------------------------
		1517	;
		1518	; SOCKET_ring_read
		1519	;
		1520	; IN: eax = ring struct ptr
		1521	; ecx = bytes to read
		1522	; edx = offset
		1523	; edi = ptr to buffer start
		1524	;
		1525	; OUT: eax = unchanged
		1526	; ecx = number of bytes read (0 on error)
		1527	; edx = destroyed
		1528	; esi = destroyed
		1529	; edi = ptr to buffer end
		1530	;
		1531	;-----------------------------------------------------------------
		1532	align 4
		1533	SOCKET_ring_read:
		1534
3556	hidnplayr	1535	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: ringbuff=%x ptr=%x size=%u offset=%x\n", eax, edi, ecx, edx
3545	hidnplayr	1536
		1537	pusha
		1538	lea ecx, [eax + RING_BUFFER.mutex]
		1539	call mutex_lock ; TODO: check what registers this function actually destroys
		1540	popa
		1541
		1542	mov esi, [eax + RING_BUFFER.read_ptr]
		1543	add esi, edx ; esi = start_ptr + offset
		1544
		1545	neg edx
		1546	add edx, [eax + RING_BUFFER.size] ; edx = snd.size - offset
		1547	jle .no_data_at_all
		1548
		1549	pusha
		1550	lea ecx, [eax + RING_BUFFER.mutex]
		1551	call mutex_unlock ; TODO: check what registers this function actually destroys
		1552	popa
		1553
		1554	cmp ecx, edx
		1555	ja .less_data
		1556
		1557	.copy:
3556	hidnplayr	1558	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi
3545	hidnplayr	1559	push ecx
		1560	shr ecx, 1
		1561	jnc .nb
		1562	movsb
		1563	.nb:
		1564	shr ecx, 1
		1565	jnc .nw
		1566	movsw
		1567	.nw:
		1568	test ecx, ecx
		1569	jz .nd
		1570	rep movsd
		1571	.nd:
		1572	pop ecx
		1573	ret
		1574
		1575	.no_data_at_all:
		1576	pusha
		1577	lea ecx, [eax + RING_BUFFER.mutex]
		1578	call mutex_unlock ; TODO: check what registers this function actually destroys
		1579	popa
		1580
3556	hidnplayr	1581	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: no data at all!\n"
3545	hidnplayr	1582	xor ecx, ecx
		1583	ret
		1584
		1585	.less_data:
		1586	mov ecx, edx
		1587	jmp .copy
		1588
		1589
		1590	;-----------------------------------------------------------------
		1591	;
		1592	; SOCKET_ring_free
		1593	;
		1594	; Free's some bytes from the ringbuffer
		1595	;
		1596	; IN: eax = ptr to ring struct
		1597	; ecx = data size
		1598	;
		1599	; OUT: ecx = number of bytes free-ed
		1600	;
		1601	;-----------------------------------------------------------------
		1602	align 4
		1603	SOCKET_ring_free:
		1604
3556	hidnplayr	1605	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax
3545	hidnplayr	1606
		1607	push eax ecx
		1608	lea ecx, [eax + RING_BUFFER.mutex]
		1609	call mutex_lock ; TODO: check what registers this function actually destroys
		1610	pop ecx eax
		1611
		1612	sub [eax + RING_BUFFER.size], ecx
		1613	jb .error
		1614	add [eax + RING_BUFFER.read_ptr], ecx
		1615
		1616	mov edx, [eax + RING_BUFFER.end_ptr]
		1617	cmp [eax + RING_BUFFER.read_ptr], edx
		1618	jb @f
		1619	sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA
		1620	@@:
		1621
		1622	push eax ecx
		1623	lea ecx, [eax + RING_BUFFER.mutex] ; TODO: check what registers this function actually destroys
		1624	call mutex_unlock
		1625	pop ecx eax
		1626
		1627	ret
		1628
		1629	.error: ; we could free all available bytes, but that would be stupid, i guess..
3556	hidnplayr	1630	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: buffer=%x error!\n", eax
3545	hidnplayr	1631	add [eax + RING_BUFFER.size], ecx
		1632
		1633	push eax
		1634	lea ecx, [eax + RING_BUFFER.mutex]
		1635	call mutex_unlock ; TODO: check what registers this function actually destroys
		1636	pop eax
		1637
		1638	xor ecx, ecx
		1639	ret
		1640
		1641
		1642	;-----------------------------------------------------------------
		1643	;
		1644	; SOCKET_block
		1645	;
		1646	; Suspends the thread attached to a socket
		1647	;
		1648	; IN: eax = socket ptr
		1649	; OUT: /
		1650	;
		1651	;-----------------------------------------------------------------
		1652	align 4
		1653	SOCKET_block:
		1654
3556	hidnplayr	1655	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: %x\n", eax
3545	hidnplayr	1656
		1657	pushf
		1658	cli
		1659
		1660	; Set the 'socket is blocked' flag
		1661	or [eax + SOCKET.state], SS_BLOCKED
		1662
		1663	; Suspend the thread
		1664	push edx
		1665	mov edx, [TASK_BASE]
		1666	mov [edx + TASKDATA.state], 1 ; Suspended
		1667
		1668	; Remember the thread ID so we can wake it up again
		1669	mov edx, [edx + TASKDATA.pid]
3556	hidnplayr	1670	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: suspending thread: %u\n", edx
3545	hidnplayr	1671	mov [eax + SOCKET.TID], edx
		1672	pop edx
		1673
		1674	call change_task
		1675	popf
		1676
3556	hidnplayr	1677	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: continueing\n"
3545	hidnplayr	1678
		1679	ret
		1680
		1681
		1682	;-----------------------------------------------------------------
		1683	;
		1684	; SOCKET_notify
		1685	;
		1686	; notify's the owner of a socket that something happened
		1687	;
		1688	; IN: eax = socket ptr
		1689	; OUT: /
		1690	;
		1691	;-----------------------------------------------------------------
		1692	align 4
		1693	SOCKET_notify:
		1694
3556	hidnplayr	1695	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: %x\n", eax
3545	hidnplayr	1696
		1697	call SOCKET_check
		1698	jz .error
		1699
		1700	test [eax + SOCKET.state], SS_BLOCKED
		1701	jnz .unblock
		1702
		1703	test [eax + SOCKET.options], SO_NONBLOCK
		1704	jz .error
		1705
		1706	push eax ecx esi
		1707
		1708	; socket exists and is of non blocking type.
		1709	; We'll try to flag an event to the thread
		1710
		1711	mov eax, [eax + SOCKET.TID]
		1712	test eax, eax
		1713	jz .done
		1714	mov ecx, 1
		1715	mov esi, TASK_DATA + TASKDATA.pid
		1716
		1717	.next_pid:
		1718	cmp [esi], eax
		1719	je .found_pid
		1720	inc ecx
		1721	add esi, 0x20
		1722	cmp ecx, [TASK_COUNT]
		1723	jbe .next_pid
		1724	; PID not found, TODO: close socket!
		1725	jmp .done
		1726
		1727	.found_pid:
		1728	shl ecx, 8
		1729	or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK
		1730
3556	hidnplayr	1731	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: Raised a network event!\n"
3545	hidnplayr	1732
		1733	jmp .done
		1734
		1735	.unblock:
		1736	push eax ecx esi
		1737	; Clear the 'socket is blocked' flag
		1738	and [eax + SOCKET.state], not SS_BLOCKED
		1739
		1740	; Find the thread's TASK_DATA
		1741	mov eax, [eax + SOCKET.TID]
		1742	test eax, eax
		1743	jz .error
		1744	xor ecx, ecx
		1745	inc ecx
		1746	mov esi, TASK_DATA
		1747	.next:
		1748	cmp [esi + TASKDATA.pid], eax
		1749	je .found
		1750	inc ecx
		1751	add esi, 0x20
		1752	cmp ecx, [TASK_COUNT]
		1753	jbe .next
		1754	jmp .error
		1755	.found:
		1756
		1757	; Run the thread
		1758	mov [esi + TASKDATA.state], 0 ; Running
3556	hidnplayr	1759	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: Unblocked socket!\n"
3545	hidnplayr	1760
		1761	.done:
		1762	pop esi ecx eax
		1763
		1764	.error:
		1765	ret
		1766
		1767
		1768	;--------------------------------------------------------------------
		1769	;
		1770	; SOCKET_alloc
		1771	;
		1772	; Allocate memory for socket data and put new socket into the list
		1773	; Newly created socket is initialized with calling PID and number and
		1774	; put into beginning of list (which is a fastest way).
		1775	;
		1776	; IN: /
		1777	; OUT: eax = 0 on error, socket ptr otherwise
		1778	; edi = socket number
		1779	; ZF = cleared on error
		1780	;
		1781	;--------------------------------------------------------------------
		1782	align 4
		1783	SOCKET_alloc:
		1784
		1785	push ebx
		1786
		1787	stdcall kernel_alloc, SOCKETBUFFSIZE
3556	hidnplayr	1788	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: ptr=%x\n", eax
3545	hidnplayr	1789	or eax, eax
		1790	jz .exit
		1791
		1792	; zero-initialize allocated memory
		1793	push eax
		1794	mov edi, eax
		1795	mov ecx, SOCKETBUFFSIZE / 4
		1796	xor eax, eax
		1797	rep stosd
		1798	pop eax
		1799
		1800	; set send-and receive procedures to return -1
		1801	mov [eax + SOCKET.snd_proc], s_error
		1802	mov [eax + SOCKET.rcv_proc], s_error
		1803
		1804	; find first free socket number and use it
		1805	mov edi, [last_socket_num]
		1806	.next_socket_number:
		1807	inc edi
		1808	jz .next_socket_number ; avoid socket nr 0
		1809	cmp edi, -1
		1810	je .next_socket_number ; avoid socket nr -1
		1811	mov ebx, net_sockets
		1812	.next_socket:
		1813	mov ebx, [ebx + SOCKET.NextPtr]
		1814	test ebx, ebx
		1815	jz .last_socket
		1816
		1817	cmp [ebx + SOCKET.Number], edi
		1818	jne .next_socket
		1819	jmp .next_socket_number
		1820
		1821	.last_socket:
		1822	mov [last_socket_num], edi
		1823	mov [eax + SOCKET.Number], edi
3556	hidnplayr	1824	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: number=%u\n", edi
3545	hidnplayr	1825
		1826	; Fill in PID
		1827	mov ebx, [TASK_BASE]
		1828	mov ebx, [ebx + TASKDATA.pid]
		1829	mov [eax + SOCKET.PID], ebx
		1830	mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :(
		1831
		1832	; init mutex
		1833	pusha
		1834	lea ecx, [eax + SOCKET.mutex]
		1835	call mutex_init
		1836	popa
		1837
		1838	; add socket to the list by re-arranging some pointers
		1839	mov ebx, [net_sockets + SOCKET.NextPtr]
		1840
		1841	mov [eax + SOCKET.PrevPtr], net_sockets
		1842	mov [eax + SOCKET.NextPtr], ebx
		1843
		1844	test ebx, ebx
		1845	jz @f
		1846
		1847	pusha
		1848	lea ecx, [ebx + SOCKET.mutex]
		1849	call mutex_lock
		1850	popa
		1851
		1852	mov [ebx + SOCKET.PrevPtr], eax
		1853
		1854	pusha
		1855	lea ecx, [ebx + SOCKET.mutex]
		1856	call mutex_unlock
		1857	popa
		1858	@@:
		1859
		1860	mov [net_sockets + SOCKET.NextPtr], eax
		1861	or eax, eax ; used to clear zero flag
		1862	.exit:
		1863	pop ebx
		1864
		1865	ret
		1866
		1867
		1868	;----------------------------------------------------
		1869	;
		1870	; SOCKET_free
		1871	;
		1872	; Free socket data memory and remove socket from the list
		1873	;
		1874	; IN: eax = socket ptr
		1875	; OUT: /
		1876	;
		1877	;----------------------------------------------------
		1878	align 4
		1879	SOCKET_free:
		1880
3556	hidnplayr	1881	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: %x\n", eax
3545	hidnplayr	1882
		1883	call SOCKET_check
		1884	jz .error
		1885
		1886	push ebx
		1887
		1888	pusha
		1889	lea ecx, [eax + SOCKET.mutex]
		1890	call mutex_lock
		1891	popa
		1892
		1893	cmp [eax + SOCKET.Domain], AF_INET4
		1894	jnz .no_tcp
		1895
		1896	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		1897	jnz .no_tcp
		1898
		1899	mov ebx, eax
		1900	stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr]
		1901	stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr]
		1902	mov eax, ebx
		1903	.no_tcp:
		1904
		1905	push eax ; this will be passed to kernel_free
		1906	mov ebx, [eax + SOCKET.NextPtr]
		1907	mov eax, [eax + SOCKET.PrevPtr]
		1908
3556	hidnplayr	1909	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx
3545	hidnplayr	1910
		1911	test eax, eax
		1912	jz @f
		1913	mov [eax + SOCKET.NextPtr], ebx
		1914	@@:
		1915
		1916	test ebx, ebx
		1917	jz @f
		1918	mov [ebx + SOCKET.PrevPtr], eax
		1919	@@:
		1920
		1921	call kernel_free
		1922	pop ebx
		1923
3556	hidnplayr	1924	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: success!\n"
3545	hidnplayr	1925
		1926	.error:
		1927	ret
		1928
		1929	;------------------------------------
		1930	;
		1931	; SOCKET_fork
		1932	;
		1933	; Create a child socket
		1934	;
		1935	; IN: socket nr in ebx
		1936	; OUT: child socket nr in eax
		1937	;
		1938	;-----------------------------------
		1939	align 4
		1940	SOCKET_fork:
		1941
3556	hidnplayr	1942	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_fork: %x\n", ebx
3545	hidnplayr	1943
		1944	; Exit if backlog queue is full
		1945	mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size]
		1946	cmp ax, [ebx + SOCKET.backlog]
		1947	jae .fail
		1948
		1949	; Allocate new socket
		1950	push ebx
		1951	call SOCKET_alloc
		1952	pop ebx
		1953	jz .fail
		1954
		1955	push eax
		1956	mov esi, esp
		1957	add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2
		1958	pop eax
		1959
		1960	; Copy structure from current socket to new
		1961	; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket
		1962	lea esi, [ebx + SOCKET.PID]
		1963	lea edi, [eax + SOCKET.PID]
		1964	mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4
		1965	rep movsd
		1966
		1967	and [eax + SOCKET.options], not SO_ACCEPTCON
		1968
		1969	ret
		1970
		1971	.fail2:
		1972	add esp, 4+4+4
		1973	.fail:
3556	hidnplayr	1974	DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_fork: failed\n"
3545	hidnplayr	1975	xor eax, eax
		1976	ret
		1977
		1978
		1979	;---------------------------------------------------
		1980	;
		1981	; SOCKET_num_to_ptr
		1982	;
		1983	; Get socket structure address by its number
		1984	;
		1985	; IN: ecx = socket number
		1986	; OUT: eax = 0 on error, socket ptr otherwise
		1987	; ZF = set on error
		1988	;
		1989	;---------------------------------------------------
		1990	align 4
		1991	SOCKET_num_to_ptr:
		1992
3556	hidnplayr	1993	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_num_to_ptr: num=%u ", ecx
3545	hidnplayr	1994
		1995	mov eax, net_sockets
		1996
		1997	.next_socket:
		1998	mov eax, [eax + SOCKET.NextPtr]
		1999	or eax, eax
		2000	jz .error
		2001	cmp [eax + SOCKET.Number], ecx
		2002	jne .next_socket
		2003
		2004	test eax, eax
		2005
3556	hidnplayr	2006	DEBUGF DEBUG_NETWORK_VERBOSE, "ptr=%x\n", eax
3545	hidnplayr	2007	ret
		2008
		2009	.error:
3556	hidnplayr	2010	DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_nuto_ptr: not found\n", eax
3545	hidnplayr	2011	ret
		2012
		2013
		2014	;---------------------------------------------------
		2015	;
		2016	; SOCKET_ptr_to_num
		2017	;
		2018	; Get socket number by its address
		2019	;
		2020	; IN: eax = socket ptr
		2021	; OUT: eax = 0 on error, socket num otherwise
		2022	; ZF = set on error
		2023	;
		2024	;---------------------------------------------------
		2025	align 4
		2026	SOCKET_ptr_to_num:
		2027
3556	hidnplayr	2028	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ptr_to_num: ptr=%x ", eax
3545	hidnplayr	2029
		2030	call SOCKET_check
		2031	jz .error
		2032
		2033	mov eax, [eax + SOCKET.Number]
		2034
3556	hidnplayr	2035	DEBUGF DEBUG_NETWORK_VERBOSE, "num=%u\n", eax
3545	hidnplayr	2036	ret
		2037
		2038	.error:
3556	hidnplayr	2039	DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_ptr_to_num: not found\n", eax
3545	hidnplayr	2040	ret
		2041
		2042
		2043	;---------------------------------------------------
		2044	;
		2045	; SOCKET_check
		2046	;
		2047	; checks if the given value is really a socket ptr
		2048	;
		2049	; IN: eax = socket ptr
		2050	; OUT: eax = 0 on error, unchanged otherwise
		2051	; ZF = set on error
		2052	;
		2053	;---------------------------------------------------
		2054	align 4
		2055	SOCKET_check:
		2056
3556	hidnplayr	2057	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check: %x\n", eax
3545	hidnplayr	2058
		2059	push ebx
		2060	mov ebx, net_sockets
		2061
		2062	.next_socket:
		2063	mov ebx, [ebx + SOCKET.NextPtr]
		2064	or ebx, ebx
		2065	jz .done
		2066	cmp ebx, eax
		2067	jnz .next_socket
		2068
		2069	.done:
		2070	mov eax, ebx
		2071	test eax, eax
		2072	pop ebx
		2073
		2074	ret
		2075
		2076
		2077
		2078	;---------------------------------------------------
		2079	;
		2080	; SOCKET_check_owner
		2081	;
		2082	; checks if the caller application owns the socket
		2083	;
		2084	; IN: eax = socket ptr
		2085	; OUT: ZF = true/false
		2086	;
		2087	;---------------------------------------------------
		2088	align 4
		2089	SOCKET_check_owner:
		2090
3556	hidnplayr	2091	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_owner: %x\n", eax
3545	hidnplayr	2092
		2093	push ebx
		2094	mov ebx, [TASK_BASE]
		2095	mov ebx, [ebx + TASKDATA.pid]
		2096	cmp [eax + SOCKET.PID], ebx
		2097	pop ebx
		2098
		2099	ret
		2100
		2101
		2102
		2103
		2104	;------------------------------------------------------
		2105	;
		2106	; SOCKET_process_end
		2107	;
		2108	; Kernel calls this function when a certain process ends
		2109	; This function will check if the process had any open sockets
		2110	; And update them accordingly
		2111	;
		2112	; IN: edx = pid
		2113	; OUT: /
		2114	;
		2115	;------------------------------------------------------
		2116	align 4
		2117	SOCKET_process_end:
		2118
3556	hidnplayr	2119	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: %x\n", edx
3545	hidnplayr	2120
		2121	push ebx
		2122	mov ebx, net_sockets
		2123
		2124	.next_socket:
		2125	mov ebx, [ebx + SOCKET.NextPtr]
		2126	.next_socket_test:
		2127	test ebx, ebx
		2128	jz .done
		2129
		2130	cmp [ebx + SOCKET.PID], edx
		2131	jne .next_socket
		2132
3556	hidnplayr	2133	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: killing socket %x\n", ebx
3545	hidnplayr	2134
		2135	mov [ebx + SOCKET.PID], 0
		2136	mov eax, ebx
		2137	mov ebx, [ebx + SOCKET.NextPtr]
		2138	pusha
		2139	call SOCKET_close.socket
		2140	popa
		2141	jmp .next_socket_test
		2142
		2143	.done:
		2144	pop ebx
		2145
		2146	ret
		2147
		2148
		2149
		2150
		2151	;-----------------------------------------------------------------
		2152	;
		2153	; SOCKET_is_connecting
		2154	;
		2155	; IN: eax = socket ptr
		2156	; OUT: /
		2157	;
		2158	;-----------------------------------------------------------------
		2159
		2160	align 4
		2161	SOCKET_is_connecting:
		2162
3556	hidnplayr	2163	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connecting: %x\n", eax
3545	hidnplayr	2164
		2165	and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING)
		2166	or [eax + SOCKET.options], SS_ISCONNECTING
		2167
		2168	jmp SOCKET_notify
		2169
		2170
		2171
		2172	;-----------------------------------------------------------------
		2173	;
		2174	; SOCKET_is_connected
		2175	;
		2176	; IN: eax = socket ptr
		2177	; OUT: /
		2178	;
		2179	;-----------------------------------------------------------------
		2180
		2181	align 4
		2182	SOCKET_is_connected:
		2183
3556	hidnplayr	2184	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connected: %x\n", eax
3545	hidnplayr	2185
		2186	and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING)
		2187	or [eax + SOCKET.options], SS_ISCONNECTED
		2188
		2189	jmp SOCKET_notify
		2190
		2191
		2192
		2193
		2194	;-----------------------------------------------------------------
		2195	;
		2196	; SOCKET_is_disconnecting
		2197	;
		2198	; IN: eax = socket ptr
		2199	; OUT: /
		2200	;
		2201	;-----------------------------------------------------------------
		2202
		2203	align 4
		2204	SOCKET_is_disconnecting:
		2205
3556	hidnplayr	2206	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnecting: %x\n", eax
3545	hidnplayr	2207
		2208	and [eax + SOCKET.options], not (SS_ISCONNECTING)
		2209	or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE
		2210
		2211	jmp SOCKET_notify
		2212
		2213
		2214
		2215	;-----------------------------------------------------------------
		2216	;
		2217	; SOCKET_is_disconnected
		2218	;
		2219	; IN: eax = socket ptr
		2220	; OUT: /
		2221	;
		2222	;-----------------------------------------------------------------
		2223
		2224	align 4
		2225	SOCKET_is_disconnected:
		2226
3556	hidnplayr	2227	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnected: %x\n", eax
3545	hidnplayr	2228
		2229	and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING)
		2230	or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE
		2231
		2232	cmp [eax + SOCKET.Protocol], IP_PROTO_TCP
		2233	je .tcp
		2234
		2235	cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
		2236	je .udp
		2237
		2238	jmp SOCKET_notify
		2239
		2240	.tcp:
		2241	.udp:
		2242	mov [eax + UDP_SOCKET.LocalPort], 0 ; UDP and TCP structs store localport at the same offset
		2243	mov [eax + UDP_SOCKET.RemotePort], 0
		2244
		2245	jmp SOCKET_notify
		2246
		2247
		2248	;-----------------------------------------------------------------
		2249	;
		2250	; SOCKET_cant_recv_more
		2251	;
		2252	; IN: eax = socket ptr
		2253	; OUT: /
		2254	;
		2255	;-----------------------------------------------------------------
		2256
		2257	align 4
		2258	SOCKET_cant_recv_more:
		2259
3556	hidnplayr	2260	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_recv_more: %x\n", eax
3545	hidnplayr	2261
		2262	or [eax + SOCKET.options], SS_CANTRCVMORE
		2263
		2264	ret
		2265
		2266
		2267
		2268	;-----------------------------------------------------------------
		2269	;
		2270	; SOCKET_cant_send_more
		2271	;
		2272	; IN: eax = socket ptr
		2273	; OUT: /
		2274	;
		2275	;-----------------------------------------------------------------
		2276
		2277	align 4
		2278	SOCKET_cant_send_more:
		2279
3556	hidnplayr	2280	DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_send_more: %x\n", eax
3545	hidnplayr	2281
		2282	or [eax + SOCKET.options], SS_CANTSENDMORE
		2283
		2284	ret

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(root)/kernel/trunk/network/socket.inc @ 9739 – Rev 3556