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

Rev	Author	Line No.	Line
3545	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
10051	ace_dent	3	;; Copyright (C) KolibriOS team 2004-2024. All rights reserved. ;;
3545	hidnplayr	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; Part of the TCP/IP network stack for KolibriOS ;;
		7	;; ;;
		8	;; Written by hidnplayr@kolibrios.org ;;
		9	;; ;;
		10	;; Based on the code of 4.4BSD ;;
		11	;; ;;
		12	;; GNU GENERAL PUBLIC LICENSE ;;
		13	;; Version 2, June 1991 ;;
		14	;; ;;
		15	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		16
		17
		18	align 4
		19	iglobal
		20	TCP_backoff db 0,1,2,3,4,5,6,6,6,6,6,6,6
		21	endg
		22
6011	hidnplayr	23	macro tcp_checksum IP1, IP2 {
3545	hidnplayr	24
		25	;-------------
		26	; Pseudoheader
		27
		28	; protocol type
		29	mov edx, IP_PROTO_TCP
		30
		31	; source address
		32	add dl, byte [IP1+1]
		33	adc dh, byte [IP1+0]
		34	adc dl, byte [IP1+3]
		35	adc dh, byte [IP1+2]
		36
		37	; destination address
		38	adc dl, byte [IP2+1]
		39	adc dh, byte [IP2+0]
		40	adc dl, byte [IP2+3]
		41	adc dh, byte [IP2+2]
		42
		43	; size
		44	adc dl, cl
		45	adc dh, ch
		46
		47	adc edx, 0
		48
		49	;---------------------
		50	; Real header and data
		51
		52	push esi
		53	call checksum_1
		54	call checksum_2
		55	pop esi
		56
		57	} ; returns in dx only
		58
		59
		60
		61
6011	hidnplayr	62	macro tcp_sendseqinit ptr {
3545	hidnplayr	63
6011	hidnplayr	64	push edi ;;;; FIXME: i dont like this static use of edi
3545	hidnplayr	65	mov edi, [ptr + TCP_SOCKET.ISS]
		66	mov [ptr + TCP_SOCKET.SND_UP], edi
		67	mov [ptr + TCP_SOCKET.SND_MAX], edi
		68	mov [ptr + TCP_SOCKET.SND_NXT], edi
		69	mov [ptr + TCP_SOCKET.SND_UNA], edi
		70	pop edi
		71
		72	}
		73
		74
		75
6011	hidnplayr	76	macro tcp_rcvseqinit ptr {
3545	hidnplayr	77
		78	push edi
		79	mov edi, [ptr + TCP_SOCKET.IRS]
6476	hidnplayr	80	inc edi ; SYN ocupies a sequence number
3545	hidnplayr	81	mov [ptr + TCP_SOCKET.RCV_NXT], edi
		82	mov [ptr + TCP_SOCKET.RCV_ADV], edi
		83	pop edi
		84
		85	}
		86
		87
		88
6011	hidnplayr	89	macro tcp_init_socket socket {
3545	hidnplayr	90
7680	hidnplayr	91	; new tcp control block
		92
3545	hidnplayr	93	mov [socket + TCP_SOCKET.t_maxseg], TCP_mss_default
		94	mov [socket + TCP_SOCKET.t_flags], TF_REQ_SCALE or TF_REQ_TSTMP
		95
		96	mov [socket + TCP_SOCKET.t_srtt], TCP_time_srtt_default
		97	mov [socket + TCP_SOCKET.t_rttvar], TCP_time_rtt_default * 4
		98	mov [socket + TCP_SOCKET.t_rttmin], TCP_time_re_min
		99	;;; TODO: TCP_time_rangeset
		100
		101	mov [socket + TCP_SOCKET.SND_CWND], TCP_max_win shl TCP_max_winshift
		102	mov [socket + TCP_SOCKET.SND_SSTHRESH], TCP_max_win shl TCP_max_winshift
		103
7974	hidnplayr	104	mov [socket + TCP_SOCKET.RCV_SCALE], 0
		105	mov [socket + TCP_SOCKET.SND_SCALE], 0
3545	hidnplayr	106
		107	}
		108
		109
5976	hidnplayr	110	;-----------------------------------------------------------------;
		111	; ;
6011	hidnplayr	112	; tcp_pull_out_of_band ;
5976	hidnplayr	113	; ;
		114	; IN: eax = ? ;
		115	; ebx = socket ptr ;
		116	; edx = tcp packet ptr ;
		117	; ;
		118	; OUT: / ;
		119	; ;
		120	;-----------------------------------------------------------------;
3545	hidnplayr	121	align 4
6011	hidnplayr	122	tcp_pull_out_of_band:
3545	hidnplayr	123
6011	hidnplayr	124	DEBUGF DEBUG_NETWORK_VERBOSE, "tcp_pull_out_of_band\n"
3545	hidnplayr	125
		126	;;;; 1282-1305
		127
		128	ret
		129
		130
		131
5976	hidnplayr	132	;-----------------------------------------------------------------;
		133	; ;
6011	hidnplayr	134	; tcp_drop ;
5976	hidnplayr	135	; ;
		136	; IN: eax = socket ptr ;
		137	; ebx = error number ;
		138	; ;
		139	; OUT: eax = socket ptr ;
		140	; ;
		141	;-----------------------------------------------------------------;
3545	hidnplayr	142	align 4
7974	hidnplayr	143	tcp_drop:
3545	hidnplayr	144
7974	hidnplayr	145	;;; TODO: check if error code is "Connection timed out' and handle accordingly
		146
6011	hidnplayr	147	DEBUGF DEBUG_NETWORK_VERBOSE, "tcp_drop: %x\n", eax
3545	hidnplayr	148
		149	cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED
		150	jb .no_syn_received
		151
		152	mov [eax + TCP_SOCKET.t_state], TCPS_CLOSED
		153
4365	hidnplayr	154	push eax
6011	hidnplayr	155	call tcp_output
4365	hidnplayr	156	pop eax
3545	hidnplayr	157
7974	hidnplayr	158	inc [TCPS_drops]
3545	hidnplayr	159
7974	hidnplayr	160	mov [eax + SOCKET.errorcode], ebx
6011	hidnplayr	161	jmp tcp_close
3545	hidnplayr	162
		163	.no_syn_received:
7974	hidnplayr	164	inc [TCPS_conndrops]
3545	hidnplayr	165
7974	hidnplayr	166	mov [eax + SOCKET.errorcode], ebx
		167	jmp tcp_close
3545	hidnplayr	168
		169
5976	hidnplayr	170	;-----------------------------------------------------------------;
		171	; ;
6011	hidnplayr	172	; tcp_disconnect ;
5976	hidnplayr	173	; ;
		174	; IN: eax = socket ptr ;
		175	; ;
		176	; OUT: eax = socket ptr / 0 ;
		177	; ;
		178	;-----------------------------------------------------------------;
4366	hidnplayr	179	align 4
6011	hidnplayr	180	tcp_disconnect:
3545	hidnplayr	181
4366	hidnplayr	182	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_disconnect: %x\n", eax
3545	hidnplayr	183
4366	hidnplayr	184	cmp [eax + TCP_SOCKET.t_state], TCPS_ESTABLISHED
6011	hidnplayr	185	jb tcp_close ; Connection not yet synchronised, just get rid of the socket
3545	hidnplayr	186
8026	hidnplayr	187	test [eax + SOCKET.options], SO_LINGER
		188	jz .nolinger
		189
4366	hidnplayr	190	; TODO: implement LINGER
8026	hidnplayr	191	; cmp [eax + SOCKET.so_linger], 0
		192	; je TCP_drop
3545	hidnplayr	193
8026	hidnplayr	194	.nolinger:
6011	hidnplayr	195	call socket_is_disconnecting
8026	hidnplayr	196
		197	push eax
		198	add eax, STREAM_SOCKET.rcv
		199	mov ecx, [eax + RING_BUFFER.size]
		200	call socket_ring_free
		201	pop eax
		202
6011	hidnplayr	203	call tcp_usrclosed
4366	hidnplayr	204
		205	test eax, eax
		206	jz @f
		207	push eax
6011	hidnplayr	208	call tcp_output
4366	hidnplayr	209	pop eax
		210	@@:
		211	ret
		212
		213
5976	hidnplayr	214	;-----------------------------------------------------------------;
		215	; ;
6011	hidnplayr	216	; tcp_close ;
5976	hidnplayr	217	; ;
		218	; IN: eax = socket ptr ;
		219	; ;
		220	; OUT: / ;
		221	; ;
		222	;-----------------------------------------------------------------;
3545	hidnplayr	223	align 4
6011	hidnplayr	224	tcp_close:
3545	hidnplayr	225
3556	hidnplayr	226	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_close: %x\n", eax
3545	hidnplayr	227
		228	;;; TODO: update RTT and mean deviation
		229	;;; TODO: update slow start threshold
		230
6011	hidnplayr	231	call socket_is_disconnected
		232	call socket_free
3545	hidnplayr	233
6476	hidnplayr	234	inc [TCPS_closed]
		235
4366	hidnplayr	236	xor eax, eax
3545	hidnplayr	237	ret
		238
		239
		240
5976	hidnplayr	241	;-----------------------------------------------------------------;
		242	; ;
6011	hidnplayr	243	; tcp_outflags ;
5976	hidnplayr	244	; ;
		245	; IN: eax = socket ptr ;
		246	; ;
		247	; OUT: edx = flags ;
		248	; ;
		249	;-----------------------------------------------------------------;
3545	hidnplayr	250	align 4
6011	hidnplayr	251	tcp_outflags:
3545	hidnplayr	252
		253	mov edx, [eax + TCP_SOCKET.t_state]
6011	hidnplayr	254	movzx edx, byte[edx + .flaglist]
3545	hidnplayr	255
3556	hidnplayr	256	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_outflags: socket=%x flags=%x\n", eax, dl
3545	hidnplayr	257
		258	ret
		259
		260	.flaglist:
		261	db TH_RST + TH_ACK ; TCPS_CLOSED
		262	db 0 ; TCPS_LISTEN
		263	db TH_SYN ; TCPS_SYN_SENT
		264	db TH_SYN + TH_ACK ; TCPS_SYN_RECEIVED
		265	db TH_ACK ; TCPS_ESTABLISHED
		266	db TH_ACK ; TCPS_CLOSE_WAIT
		267	db TH_FIN + TH_ACK ; TCPS_FIN_WAIT_1
		268	db TH_FIN + TH_ACK ; TCPS_CLOSING
		269	db TH_FIN + TH_ACK ; TCPS_LAST_ACK
		270	db TH_ACK ; TCPS_FIN_WAIT_2
6476	hidnplayr	271	db TH_ACK ; TCPS_TIME_WAIT
3545	hidnplayr	272
		273
5976	hidnplayr	274	;-----------------------------------------------------------------;
		275	; ;
		276	; TCP_respond: Fast way to send an ACK/RST/keepalive segment. ;
		277	; ;
		278	; IN: ebx = socket ptr ;
		279	; cl = flags ;
		280	; ;
		281	; OUT: / ;
		282	; ;
		283	;-----------------------------------------------------------------;
3545	hidnplayr	284	align 4
6011	hidnplayr	285	tcp_respond:
3545	hidnplayr	286
3556	hidnplayr	287	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_respond_socket: socket=%x flags=%x\n", ebx, cl
3545	hidnplayr	288
		289	;---------------------
		290	; Create the IP packet
		291
		292	push cx ebx
		293	mov edx, [ebx + IP_SOCKET.LocalIP]
5842	hidnplayr	294	mov edi, [ebx + IP_SOCKET.RemoteIP]
		295	mov al, [ebx + IP_SOCKET.ttl]
		296	mov ah, IP_PROTO_TCP
		297	mov ecx, sizeof.TCP_header
5584	hidnplayr	298	mov ebx, [ebx + IP_SOCKET.device]
6011	hidnplayr	299	call ipv4_output
3545	hidnplayr	300	jz .error
		301	pop esi cx
5522	hidnplayr	302	push eax
3545	hidnplayr	303
		304	;-----------------------------------------------
		305	; Fill in the TCP header by using the socket ptr
		306
		307	mov ax, [esi + TCP_SOCKET.LocalPort]
		308	stosw
		309	mov ax, [esi + TCP_SOCKET.RemotePort]
		310	stosw
		311	mov eax, [esi + TCP_SOCKET.SND_NXT]
		312	bswap eax
		313	stosd
		314	mov eax, [esi + TCP_SOCKET.RCV_NXT]
		315	bswap eax
		316	stosd
		317	mov al, 0x50 ; Dataoffset: 20 bytes (TCP_header.DataOffset)
		318	stosb
		319	mov al, cl
		320	stosb
7098	ashmew2	321	mov eax, SOCKET_BUFFER_SIZE
		322	sub eax, [esi + STREAM_SOCKET.rcv.size]
		323	cmp eax, TCP_max_win
		324	jbe .lessthanmax
		325	mov eax, TCP_max_win
8026	hidnplayr	326	.lessthanmax:
7098	ashmew2	327	mov cl, [esi + TCP_SOCKET.RCV_SCALE]
		328	shr eax, cl
		329
6913	ashmew2	330	xchg al, ah
3545	hidnplayr	331	stosw ; window
		332	xor eax, eax
		333	stosd ; checksum + urgentpointer
		334
		335	;---------------------
		336	; Fill in the checksum
		337
		338	.checksum:
		339	sub edi, sizeof.TCP_header
		340	mov ecx, sizeof.TCP_header
		341	xchg esi, edi
6011	hidnplayr	342	tcp_checksum (edi + IP_SOCKET.LocalIP), (edi + IP_SOCKET.RemoteIP)
3545	hidnplayr	343	mov [esi+TCP_header.Checksum], dx
		344
		345	;--------------------
		346	; And send the segment
		347
		348	call [ebx + NET_DEVICE.transmit]
3644	hidnplayr	349	test eax, eax
		350	jnz @f
6011	hidnplayr	351	call net_ptr_to_num4
3644	hidnplayr	352	inc [TCP_segments_tx + edi]
		353	@@:
3545	hidnplayr	354	ret
		355
		356	.error:
3556	hidnplayr	357	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_respond_socket: failed\n"
3545	hidnplayr	358	add esp, 2 + 4
		359
		360	ret
		361
		362
5976	hidnplayr	363	;-----------------------------------------------------------------;
		364	; ;
6011	hidnplayr	365	; tcp_respond_segment ;
5976	hidnplayr	366	; ;
		367	; IN: ebx = device ptr ;
		368	; edx = segment ptr (a previously received segment) ;
		369	; edi = ptr to IPv4 header ;
		370	; cl = flags ;
		371	; ;
		372	; OUT: / ;
		373	; ;
		374	;-----------------------------------------------------------------;
3545	hidnplayr	375	align 4
6011	hidnplayr	376	tcp_respond_segment:
3545	hidnplayr	377
5842	hidnplayr	378	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_respond_segment: frame=%x flags=%x\n", edx, cl
3545	hidnplayr	379
		380	;---------------------
		381	; Create the IP packet
		382
		383	push cx edx
5842	hidnplayr	384	mov edx, [edi + IPv4_header.DestinationAddress]
		385	mov edi, [edi + IPv4_header.SourceAddress]
3545	hidnplayr	386	mov ecx, sizeof.TCP_header
5842	hidnplayr	387	mov ax, IP_PROTO_TCP shl 8 + 128
6011	hidnplayr	388	call ipv4_output
3545	hidnplayr	389	jz .error
		390	pop esi cx
		391
5522	hidnplayr	392	push eax
3545	hidnplayr	393
		394	;---------------------------------------------------
		395	; Fill in the TCP header by using a received segment
		396
		397	mov ax, [esi + TCP_header.DestinationPort]
		398	stosw
		399	mov ax, [esi + TCP_header.SourcePort]
		400	stosw
		401	mov eax, [esi + TCP_header.AckNumber]
		402	bswap eax
		403	stosd
		404	xor eax, eax
		405	stosd
		406	mov al, 0x50 ; Dataoffset: 20 bytes (sizeof.TCP_header/4 shl 4)
		407	stosb
		408	mov al, cl
		409	stosb
		410	mov ax, 1280
		411	rol ax, 8
		412	stosw ; window
		413	xor eax, eax
		414	stosd ; checksum + urgentpointer
		415
		416	;---------------------
		417	; Fill in the checksum
		418
		419	lea esi, [edi - sizeof.TCP_header]
		420	mov ecx, sizeof.TCP_header
6011	hidnplayr	421	tcp_checksum (esi - sizeof.IPv4_header + IPv4_header.DestinationAddress),\ ; FIXME
3545	hidnplayr	422	(esi - sizeof.IPv4_header + IPv4_header.SourceAddress)
		423	mov [esi + TCP_header.Checksum], dx
		424
		425	;--------------------
		426	; And send the segment
		427
		428	call [ebx + NET_DEVICE.transmit]
3644	hidnplayr	429	test eax, eax
		430	jnz @f
6011	hidnplayr	431	call net_ptr_to_num4
3644	hidnplayr	432	inc [TCP_segments_tx + edi]
		433	@@:
3545	hidnplayr	434	ret
		435
		436	.error:
3556	hidnplayr	437	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_respond_segment: failed\n"
3545	hidnplayr	438	add esp, 2+4
		439
		440	ret
		441
		442
6011	hidnplayr	443	macro tcpt_rangeset timer, value, min, max {
3545	hidnplayr	444
		445	local .min
		446	local .max
		447	local .done
		448
		449	cmp value, min
		450	jb .min
		451	cmp value, max
		452	ja .max
		453	mov timer, value
		454	jmp .done
		455	.min:
6512	hidnplayr	456	mov timer, min
3545	hidnplayr	457	jmp .done
		458	.max:
6512	hidnplayr	459	mov timer, max
3545	hidnplayr	460	.done:
		461	}
		462
5976	hidnplayr	463	;-----------------------------------------------------------------;
		464	; ;
6011	hidnplayr	465	; tcp_set_persist ;
5976	hidnplayr	466	; ;
		467	;-----------------------------------------------------------------;
3545	hidnplayr	468	align 4
6011	hidnplayr	469	tcp_set_persist:
3545	hidnplayr	470
3556	hidnplayr	471	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_set_persist\n"
3545	hidnplayr	472
		473	; First, check if retransmit timer is not set, retransmit and persist are mutually exclusive
		474
3600	hidnplayr	475	test [eax + TCP_SOCKET.timer_flags], timer_flag_retransmission
		476	jnz .exit
3545	hidnplayr	477
		478	; calculate RTO
		479	push ebx
		480	mov ebx, [eax + TCP_SOCKET.t_srtt]
		481	shr ebx, 2
		482	add ebx, [eax + TCP_SOCKET.t_rttvar]
		483	shr ebx, 1
		484
		485	mov cl, [eax + TCP_SOCKET.t_rxtshift]
		486	shl ebx, cl
		487
		488	; Start/restart persistance timer.
		489
6011	hidnplayr	490	tcpt_rangeset [eax + TCP_SOCKET.timer_persist], ebx, TCP_time_pers_min, TCP_time_pers_max
3600	hidnplayr	491	or [ebx + TCP_SOCKET.timer_flags], timer_flag_persist
3545	hidnplayr	492	pop ebx
		493
		494	cmp [eax + TCP_SOCKET.t_rxtshift], TCP_max_rxtshift
		495	jae @f
		496	inc [eax + TCP_SOCKET.t_rxtshift]
		497	@@:
3600	hidnplayr	498	.exit:
3545	hidnplayr	499
		500	ret
		501
		502
		503
5976	hidnplayr	504	;-----------------------------------------------------------------;
		505	; ;
6011	hidnplayr	506	; tcp_xmit_timer: Calculate new smoothed RTT. ;
5976	hidnplayr	507	; ;
		508	; IN: eax = rtt ;
		509	; ebx = socket ptr ;
		510	; ;
		511	; OUT: / ;
		512	; ;
		513	;-----------------------------------------------------------------;
3545	hidnplayr	514	align 4
6011	hidnplayr	515	tcp_xmit_timer:
3545	hidnplayr	516
5976	hidnplayr	517	DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_xmit_timer: socket=0x%x rtt=%d0ms\n", ebx, eax
3545	hidnplayr	518
6476	hidnplayr	519	inc [TCPS_rttupdated]
3545	hidnplayr	520
		521	cmp [ebx + TCP_SOCKET.t_rtt], 0
		522	je .no_rtt_yet
		523
		524	; srtt is stored as a fixed point with 3 bits after the binary point.
		525	; The following magic is equivalent of the smoothing algorithm in rfc793 with an alpha of .875
		526	; (srtt = rtt/8 + srtt*7/8 in fixed point)
		527	; Adjust rtt to origin 0.
		528
		529	push ecx
		530	mov ecx, [ebx + TCP_SOCKET.t_srtt]
		531	shr ecx, TCP_RTT_SHIFT
		532	sub eax, ecx
		533	dec eax
		534	pop ecx
		535
		536	add [ebx + TCP_SOCKET.t_srtt], eax
		537	ja @f
		538	mov [ebx + TCP_SOCKET.t_srtt], 1
		539	@@:
		540
		541	; We accumulate a smoothed rtt variance (actually, a smoothed mean difference),
		542	; then set the retransmit timer to smoothed rtt + 4 times the smoothed variance.
		543	; rttvar is stored as fixed point with 2 bits after the binary point.
		544	; The following is equivalent to rfc793 smoothing with an alpha of .75
		545	; (rttvar = rttvar*3/4 + delta/4) (delta = eax)
		546
		547	; get abs(eax)
		548	push edx
		549	cdq
		550	xor eax, edx
		551	sub eax, edx
		552
		553	mov edx, [ebx + TCP_SOCKET.t_rttvar]
		554	shr edx, TCP_RTTVAR_SHIFT
		555	sub eax, edx
		556	pop edx
		557
		558	add [ebx + TCP_SOCKET.t_rttvar], eax
		559	ja @f
		560	mov [ebx + TCP_SOCKET.t_rttvar], 1
		561	@@:
		562	ret
		563
		564
		565	.no_rtt_yet:
		566	push ecx
		567	mov ecx, eax
		568	shl ecx, TCP_RTT_SHIFT
		569	mov [ebx + TCP_SOCKET.t_srtt], ecx
		570
		571	shl eax, TCP_RTTVAR_SHIFT - 1
		572	mov [ebx + TCP_SOCKET.t_rttvar], eax
		573	pop ecx
		574
		575	ret
		576
		577
5976	hidnplayr	578	;-----------------------------------------------------------------;
		579	; ;
6011	hidnplayr	580	; tcp_mss: Update maximum segment size ;
5976	hidnplayr	581	; ;
		582	; IN: eax = max segment size ;
		583	; ebx = socket ptr ;
		584	; ;
		585	; OUT: / ;
		586	; ;
		587	;-----------------------------------------------------------------;
3545	hidnplayr	588	align 4
6011	hidnplayr	589	tcp_mss:
3545	hidnplayr	590
5976	hidnplayr	591	cmp eax, 1420 ; FIXME
3545	hidnplayr	592	jbe @f
		593	mov eax, 1420
		594	@@:
		595	mov [ebx + TCP_SOCKET.t_maxseg], eax
		596
		597
		598	ret
		599
		600
		601
5976	hidnplayr	602	;-----------------------------------------------------------------;
		603	; ;
6011	hidnplayr	604	; tcp_reassemble ;
5976	hidnplayr	605	; ;
		606	; IN: ebx = socket ptr ;
		607	; edx = segment ptr ;
		608	; ;
		609	; OUT: / ;
		610	; ;
		611	;-----------------------------------------------------------------;
3545	hidnplayr	612	align 4
6011	hidnplayr	613	tcp_reassemble:
3545	hidnplayr	614
5976	hidnplayr	615	;;;;; TODO
3545	hidnplayr	616
		617	ret
		618

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(root)/kernel/trunk/network/tcp_subr.inc @ 5976 – Rev 10051