WebSVN – Kolibri OS – Diff – /kernel/branches/Kolibri-acpi/network/tcp.inc


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;;                                                                 ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved.    ;;
;; Distributed under terms of the GNU General Public License       ;;
;;                                                                 ;;
;;  Part of the TCP/IP network stack for KolibriOS                 ;;
;;                                                                 ;;
;;   Written by hidnplayr@kolibrios.org                            ;;
;;                                                                 ;;
;;    Based on the code of 4.4BSD                                  ;;
;;                                                                 ;;
;;          GNU GENERAL PUBLIC LICENSE                             ;;
;;             Version 2, June 1991                                ;;
;;                                                                 ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
$Revision: 5565 $
 
; Socket states
TCPS_CLOSED             = 0
TCPS_LISTEN             = 1
TCPS_SYN_SENT           = 2
TCPS_SYN_RECEIVED       = 3
TCPS_ESTABLISHED        = 4
TCPS_CLOSE_WAIT         = 5
TCPS_FIN_WAIT_1         = 6
TCPS_CLOSING            = 7
TCPS_LAST_ACK           = 8
TCPS_FIN_WAIT_2         = 9
TCPS_TIMED_WAIT         = 10
 
; Socket Flags
TF_ACKNOW               = 1 shl 0     ; ack peer immediately
TF_DELACK               = 1 shl 1     ; ack, but try to delay it
TF_NODELAY              = 1 shl 2     ; don't delay packets to coalesce
TF_NOOPT                = 1 shl 3     ; don't use tcp options
TF_SENTFIN              = 1 shl 4     ; have sent FIN
TF_REQ_SCALE            = 1 shl 5     ; have/will request window scaling
TF_RCVD_SCALE           = 1 shl 6     ; other side has requested scaling
TF_REQ_TSTMP            = 1 shl 7     ; have/will request timestamps
TF_RCVD_TSTMP           = 1 shl 8     ; a timestamp was received in SYN
TF_SACK_PERMIT          = 1 shl 9     ; other side said I could SACK
 
; Segment flags
TH_FIN                  = 1 shl 0
TH_SYN                  = 1 shl 1
TH_RST                  = 1 shl 2
TH_PUSH                 = 1 shl 3
TH_ACK                  = 1 shl 4
TH_URG                  = 1 shl 5
 
; Segment header options
TCP_OPT_EOL             = 0           ; End of option list.
TCP_OPT_NOP             = 1           ; No-Operation.
TCP_OPT_MAXSEG          = 2           ; Maximum Segment Size.
TCP_OPT_WINDOW          = 3           ; window scale
TCP_OPT_SACK_PERMIT     = 4           ; Selective Acknowledgement
TCP_OPT_SACK            = 5
TCP_OPT_TIMESTAMP       = 8
 
; Fundamental timer values
TCP_time_MSL            = 47          ; max segment lifetime (30s)
TCP_time_re_min         = 2           ; min retransmission (1,28s)
TCP_time_re_max         = 100         ; max retransmission (64s)
TCP_time_pers_min       = 8           ; min persist (5,12s)
TCP_time_pers_max       = 94          ; max persist (60,16s)
TCP_time_keep_init      = 118         ; connection establishment (75,52s)
TCP_time_keep_idle      = 4608        ; idle time before 1st probe (2h)
TCP_time_keep_interval  = 118         ; between probes when no response (75,52s)
TCP_time_rtt_default    = 5           ; default Round Trip Time (3,2s)
TCP_time_srtt_default   = 0           ;
TCP_time_max_idle       = 8*TCP_time_keep_interval      ; FIXME
 
TCP_time_connect        = 300         ; in 1/100s (default=3s)
 
; timer constants
TCP_max_rxtshift        = 12          ; max retransmissions waiting for ACK
TCP_max_keepcnt         = 8           ; max keepalive probes
 
;
TCP_max_winshift        = 14
TCP_max_win             = 65535
 
TCP_re_xmit_thresh      = 3
 
TCP_mss_default         = 1480        ; default max segment size
 
; smoothed round trip time and estimated variance are stored as fixed point numbers,
; shifted by the value below.
; With these scales, srtt has 3 bits to the right of the binary point, and thus an "alpha"
; of .875. rttvar has 2 bits to the right and thus "alpha" of 0.75
TCP_RTT_SHIFT           = 3
TCP_RTTVAR_SHIFT        = 2
 
; bits used by tcp_input and tcp_output
TCP_BIT_NEEDOUTPUT      = 1 shl 0
TCP_BIT_TIMESTAMP       = 1 shl 1
TCP_BIT_DROPSOCKET      = 1 shl 2
TCP_BIT_FIN_IS_ACKED    = 1 shl 3
 
TCP_BIT_SENDALOT        = 1 shl 0
 
TCP_PAWS_IDLE           = 24*24*60*60*100       ; 24 days, in 1/100 seconds
 
TCP_QUEUE_SIZE          = 50
 
struct  TCP_header
 
        SourcePort              dw ?
        DestinationPort         dw ?
        SequenceNumber          dd ?
        AckNumber               dd ?
        DataOffset              db ?    ; DataOffset[0-3 bits] and Reserved[4-7]
        Flags                   db ?    ; Reserved[0-1 bits]|URG|ACK|PSH|RST|SYN|FIN
        Window                  dw ?
        Checksum                dw ?
        UrgentPointer           dw ?
 
ends
 
struct  TCP_queue_entry
 
        ip_ptr                  dd ?
        segment_ptr             dd ?
        segment_size            dd ?
        device_ptr              dd ?
 
 
        timestamp               dd ?
        buffer_ptr              dd ?
 
ends
 
uglobal
align 4
 
        TCP_segments_tx         rd NET_DEVICES_MAX
        TCP_segments_rx         rd NET_DEVICES_MAX
        TCP_segments_missed     rd NET_DEVICES_MAX
        TCP_segments_dumped     rd NET_DEVICES_MAX
;        TCP_bytes_rx            rq NET_DEVICES_MAX
;        TCP_bytes_tx            rq NET_DEVICES_MAX
        TCP_sequence_num        dd ?
        TCP_queue               rd (TCP_QUEUE_SIZE*sizeof.TCP_queue_entry + sizeof.queue)/4
        TCP_input_event         dd ?
        TCP_timer1_event        dd ?
endg
 
uglobal
align 4
 
        TCPS_accepts            dd ?    ; #SYNs received in LISTEN state
        TCPS_closed             dd ?    ; #connections closed (includes drops)
        TCPS_connattempt        dd ?    ; #connections initiated (calls to connect)
        TCPS_conndrops          dd ?    ; #embryonic connections dropped (before SYN received)
        TCPS_connects           dd ?    ; #connections established actively or passively
        TCPS_delack             dd ?    ; #delayed ACKs sent
        TCPS_drops              dd ?    ; #connections dropped (after SYN received)
        TCPS_keepdrops          dd ?    ; #connections dropped in keepalive (established or awaiting SYN)
        TCPS_keepprobe          dd ?    ; #keepalive probes sent
        TCPS_keeptimeo          dd ?    ; #times keepalive timer or connections-establishment timer expire
        TCPS_pawsdrop           dd ?    ; #segments dropped due to PAWS
        TCPS_pcbcachemiss       dd ?    ; #times PCB cache comparison fails
        TCPS_persisttimeo       dd ?    ; #times persist timer expires
        TCPS_predack            dd ?    ; #times header prediction correct for ACKs
        TCPS_preddat            dd ?    ; #times header prediction correct for data packets
        TCPS_rcvackbyte         dd ?    ; #bytes ACKed by received ACKs
        TCPS_rcvackpack         dd ?    ; #received ACK packets
        TCPS_rcvacktoomuch      dd ?    ; #received ACKs for unsent data
        TCPS_rcvafterclose      dd ?    ; #packets received after connection closed
        TCPS_rcvbadoff          dd ?    ; #packets received with invalid header length
        TCPS_rcvbadsum          dd ?    ; #packets received with checksum errors
        TCPS_rcvbyte            dd ?    ; #bytes received in sequence
        TCPS_rcvbyteafterwin    dd ?    ; #bytes received beyond advertised window
        TCPS_rcvdupack          dd ?    ; #duplicate ACKs received
        TCPS_rcvdupbyte         dd ?    ; #bytes receivedin completely duplicate packets
        TCPS_rcvduppack         dd ?    ; #packets received with completely duplicate bytes
        TCPS_rcvoobyte          dd ?    ; #out-of-order bytes received
        TCPS_rcvoopack          dd ?    ; #out-of-order packets received
        TCPS_rcvpack            dd ?    ; #packets received in sequence
        TCPS_rcvpackafterwin    dd ?    ; #packets with some data beyond advertised window
        TCPS_rcvpartdupbyte     dd ?    ; #duplicate bytes in part-duplicate packets
        TCPS_rcvpartduppack     dd ?    ; #packets with some duplicate data
        TCPS_rcvshort           dd ?    ; #packets received too short
        TCPS_rcvtotal           dd ?    ; #total packets received
        TCPS_rcvwinprobe        dd ?    ; #window probe packets received
        TCPS_rcvwinupd          dd ?    ; #received window update packets
        TCPS_rexmttimeo         dd ?    ; #retransmission timeouts
        TCPS_rttupdated         dd ?    ; #times RTT estimators updated
        TCPS_segstimed          dd ?    ; #segments for which TCP tried to measure RTT
        TCPS_sndacks            dd ?    ; #ACK-only packets sent (data length = 0)
        TCPS_sndbyte            dd ?    ; #data bytes sent
        TCPS_sndctrl            dd ?    ; #control (SYN, FIN, RST) packets sent (data length = 0)
        TCPS_sndpack            dd ?    ; #data packets sent (data length > 0)
        TCPS_sndprobe           dd ?    ; #window probes sent (1 byte of data forced by persist timer)
        TCPS_sndrexmitbyte      dd ?    ; #data bytes retransmitted
        TCPS_sndrexmitpack      dd ?    ; #data packets retransmitted
        TCPS_sndtotal           dd ?    ; total #packets sent
        TCPS_sndurg             dd ?    ; #packets sent with URG-only (data length=0)
        TCPS_sndwinup           dd ?    ; #window update-only packets sent (data length=0)
        TCPS_timeoutdrop        dd ?    ; #connections dropped in retransmission timeout
 
endg
 
 
;-----------------------------------------------------------------
;
; TCP_init
;
;  This function resets all TCP variables
;
;-----------------------------------------------------------------
macro   TCP_init {
 
        xor     eax, eax
        mov     edi, TCP_segments_tx
        mov     ecx, (6*NET_DEVICES_MAX)
        rep stosd
 
        pseudo_random   eax
        mov     [TCP_sequence_num], eax
 
        init_queue TCP_queue
 
        movi    ebx, 1
        mov     ecx, TCP_process_input
        call    new_sys_threads
        test    eax, eax
        jns     @f
        DEBUGF  DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for TCP input, error %d\n', eax
  @@:
 
        movi    ebx, 1
        mov     ecx, TCP_timer_640ms
        call    new_sys_threads
        test    eax, eax
        jns     @f
        DEBUGF  DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for TCP timer, error %d\n', eax
  @@:
 
}
 
 
include 'tcp_timer.inc'
include 'tcp_subr.inc'
include 'tcp_usreq.inc'
include 'tcp_input.inc'
include 'tcp_output.inc'
 
 
;---------------------------------------------------------------------------
;
; TCP_API
;
; This function is called by system function 76
;
; IN:  subfunction number in bl
;      device number in bh
;      ecx, edx, .. depends on subfunction
;
; OUT:
;
;---------------------------------------------------------------------------
align 4
TCP_api:
 
        movzx   eax, bh
        shl     eax, 2
 
        test    bl, bl
        jz      .packets_tx     ; 0
        dec     bl
        jz      .packets_rx     ; 1
        dec     bl
        jz      .packets_missed ; 2
        dec     bl
        jz      .packets_dumped ; 3
        dec     bl
        jz      .packets_queued ; 4
 
  .error:
        mov     eax, -1
        ret
 
  .packets_tx:
        mov     eax, [TCP_segments_tx + eax]
        ret
 
  .packets_rx:
        mov     eax, [TCP_segments_rx + eax]
        ret
 
  .packets_missed:
        mov     eax, [TCP_segments_missed + eax]
        ret
 
  .packets_dumped:
        mov     eax, [TCP_segments_dumped + eax]
        ret
 
  .packets_queued:
        mov     eax, [TCP_queue + queue.size]
        ret

Rev 5201	Rev 5565
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
4	;; Distributed under terms of the GNU General Public License ;;	4	;; Distributed under terms of the GNU General Public License ;;
5	;; ;;	5	;; ;;
6	;; Part of the TCP/IP network stack for KolibriOS ;;	6	;; Part of the TCP/IP network stack for KolibriOS ;;
7	;; ;;	7	;; ;;
8	;; Written by hidnplayr@kolibrios.org ;;	8	;; Written by hidnplayr@kolibrios.org ;;
9	;; ;;	9	;; ;;
10	;; Based on the code of 4.4BSD ;;	10	;; Based on the code of 4.4BSD ;;
11	;; ;;	11	;; ;;
12	;; GNU GENERAL PUBLIC LICENSE ;;	12	;; GNU GENERAL PUBLIC LICENSE ;;
13	;; Version 2, June 1991 ;;	13	;; Version 2, June 1991 ;;
14	;; ;;	14	;; ;;
15	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	15	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
16		16
17	$Revision: 5201 $	17	$Revision: 5565 $
18		18
19	; Socket states	19	; Socket states
20	TCPS_CLOSED = 0	20	TCPS_CLOSED = 0
21	TCPS_LISTEN = 1	21	TCPS_LISTEN = 1
22	TCPS_SYN_SENT = 2	22	TCPS_SYN_SENT = 2
23	TCPS_SYN_RECEIVED = 3	23	TCPS_SYN_RECEIVED = 3
24	TCPS_ESTABLISHED = 4	24	TCPS_ESTABLISHED = 4
25	TCPS_CLOSE_WAIT = 5	25	TCPS_CLOSE_WAIT = 5
26	TCPS_FIN_WAIT_1 = 6	26	TCPS_FIN_WAIT_1 = 6
27	TCPS_CLOSING = 7	27	TCPS_CLOSING = 7
28	TCPS_LAST_ACK = 8	28	TCPS_LAST_ACK = 8
29	TCPS_FIN_WAIT_2 = 9	29	TCPS_FIN_WAIT_2 = 9
30	TCPS_TIMED_WAIT = 10	30	TCPS_TIMED_WAIT = 10
31		31
32	; Socket Flags	32	; Socket Flags
33	TF_ACKNOW = 1 shl 0 ; ack peer immediately	33	TF_ACKNOW = 1 shl 0 ; ack peer immediately
34	TF_DELACK = 1 shl 1 ; ack, but try to delay it	34	TF_DELACK = 1 shl 1 ; ack, but try to delay it
35	TF_NODELAY = 1 shl 2 ; don't delay packets to coalesce	35	TF_NODELAY = 1 shl 2 ; don't delay packets to coalesce
36	TF_NOOPT = 1 shl 3 ; don't use tcp options	36	TF_NOOPT = 1 shl 3 ; don't use tcp options
37	TF_SENTFIN = 1 shl 4 ; have sent FIN	37	TF_SENTFIN = 1 shl 4 ; have sent FIN
38	TF_REQ_SCALE = 1 shl 5 ; have/will request window scaling	38	TF_REQ_SCALE = 1 shl 5 ; have/will request window scaling
39	TF_RCVD_SCALE = 1 shl 6 ; other side has requested scaling	39	TF_RCVD_SCALE = 1 shl 6 ; other side has requested scaling
40	TF_REQ_TSTMP = 1 shl 7 ; have/will request timestamps	40	TF_REQ_TSTMP = 1 shl 7 ; have/will request timestamps
41	TF_RCVD_TSTMP = 1 shl 8 ; a timestamp was received in SYN	41	TF_RCVD_TSTMP = 1 shl 8 ; a timestamp was received in SYN
42	TF_SACK_PERMIT = 1 shl 9 ; other side said I could SACK	42	TF_SACK_PERMIT = 1 shl 9 ; other side said I could SACK
43		43
44	; Segment flags	44	; Segment flags
45	TH_FIN = 1 shl 0	45	TH_FIN = 1 shl 0
46	TH_SYN = 1 shl 1	46	TH_SYN = 1 shl 1
47	TH_RST = 1 shl 2	47	TH_RST = 1 shl 2
48	TH_PUSH = 1 shl 3	48	TH_PUSH = 1 shl 3
49	TH_ACK = 1 shl 4	49	TH_ACK = 1 shl 4
50	TH_URG = 1 shl 5	50	TH_URG = 1 shl 5
51		51
52	; Segment header options	52	; Segment header options
53	TCP_OPT_EOL = 0 ; End of option list.	53	TCP_OPT_EOL = 0 ; End of option list.
54	TCP_OPT_NOP = 1 ; No-Operation.	54	TCP_OPT_NOP = 1 ; No-Operation.
55	TCP_OPT_MAXSEG = 2 ; Maximum Segment Size.	55	TCP_OPT_MAXSEG = 2 ; Maximum Segment Size.
56	TCP_OPT_WINDOW = 3 ; window scale	56	TCP_OPT_WINDOW = 3 ; window scale
57	TCP_OPT_SACK_PERMIT = 4 ; Selective Acknowledgement	57	TCP_OPT_SACK_PERMIT = 4 ; Selective Acknowledgement
58	TCP_OPT_SACK = 5	58	TCP_OPT_SACK = 5
59	TCP_OPT_TIMESTAMP = 8	59	TCP_OPT_TIMESTAMP = 8
60		60
61	; Fundamental timer values	61	; Fundamental timer values
62	TCP_time_MSL = 47 ; max segment lifetime (30s)	62	TCP_time_MSL = 47 ; max segment lifetime (30s)
63	TCP_time_re_min = 2 ; min retransmission (1,28s)	63	TCP_time_re_min = 2 ; min retransmission (1,28s)
64	TCP_time_re_max = 100 ; max retransmission (64s)	64	TCP_time_re_max = 100 ; max retransmission (64s)
65	TCP_time_pers_min = 8 ; min persist (5,12s)	65	TCP_time_pers_min = 8 ; min persist (5,12s)
66	TCP_time_pers_max = 94 ; max persist (60,16s)	66	TCP_time_pers_max = 94 ; max persist (60,16s)
67	TCP_time_keep_init = 118 ; connection establishment (75,52s)	67	TCP_time_keep_init = 118 ; connection establishment (75,52s)
68	TCP_time_keep_idle = 4608 ; idle time before 1st probe (2h)	68	TCP_time_keep_idle = 4608 ; idle time before 1st probe (2h)
69	TCP_time_keep_interval = 118 ; between probes when no response (75,52s)	69	TCP_time_keep_interval = 118 ; between probes when no response (75,52s)
70	TCP_time_rtt_default = 5 ; default Round Trip Time (3,2s)	70	TCP_time_rtt_default = 5 ; default Round Trip Time (3,2s)
71	TCP_time_srtt_default = 0 ;	71	TCP_time_srtt_default = 0 ;
72	TCP_time_max_idle = 8*TCP_time_keep_interval ; FIXME	72	TCP_time_max_idle = 8*TCP_time_keep_interval ; FIXME
73		73
74	TCP_time_connect = 300 ; in 1/100s (default=3s)	74	TCP_time_connect = 300 ; in 1/100s (default=3s)
75		75
76	; timer constants	76	; timer constants
77	TCP_max_rxtshift = 12 ; max retransmissions waiting for ACK	77	TCP_max_rxtshift = 12 ; max retransmissions waiting for ACK
78	TCP_max_keepcnt = 8 ; max keepalive probes	78	TCP_max_keepcnt = 8 ; max keepalive probes
79		79
80	;	80	;
81	TCP_max_winshift = 14	81	TCP_max_winshift = 14
82	TCP_max_win = 65535	82	TCP_max_win = 65535
83		83
84	TCP_re_xmit_thresh = 3	84	TCP_re_xmit_thresh = 3
85		85
86	TCP_mss_default = 1480 ; default max segment size	86	TCP_mss_default = 1480 ; default max segment size
87		87
88	; smoothed round trip time and estimated variance are stored as fixed point numbers,	88	; smoothed round trip time and estimated variance are stored as fixed point numbers,
89	; shifted by the value below.	89	; shifted by the value below.
90	; With these scales, srtt has 3 bits to the right of the binary point, and thus an "alpha"	90	; With these scales, srtt has 3 bits to the right of the binary point, and thus an "alpha"
91	; of .875. rttvar has 2 bits to the right and thus "alpha" of 0.75	91	; of .875. rttvar has 2 bits to the right and thus "alpha" of 0.75
92	TCP_RTT_SHIFT = 3	92	TCP_RTT_SHIFT = 3
93	TCP_RTTVAR_SHIFT = 2	93	TCP_RTTVAR_SHIFT = 2
94		94
95	; bits used by tcp_input and tcp_output	95	; bits used by tcp_input and tcp_output
96	TCP_BIT_NEEDOUTPUT = 1 shl 0	96	TCP_BIT_NEEDOUTPUT = 1 shl 0
97	TCP_BIT_TIMESTAMP = 1 shl 1	97	TCP_BIT_TIMESTAMP = 1 shl 1
98	TCP_BIT_DROPSOCKET = 1 shl 2	98	TCP_BIT_DROPSOCKET = 1 shl 2
99	TCP_BIT_FIN_IS_ACKED = 1 shl 3	99	TCP_BIT_FIN_IS_ACKED = 1 shl 3
100		100
101	TCP_BIT_SENDALOT = 1 shl 0	101	TCP_BIT_SENDALOT = 1 shl 0
102		102
103	TCP_PAWS_IDLE = 24246060100 ; 24 days, in 1/100 seconds	103	TCP_PAWS_IDLE = 24246060100 ; 24 days, in 1/100 seconds
104		104
105	TCP_QUEUE_SIZE = 50	105	TCP_QUEUE_SIZE = 50
106		106
107	struct TCP_header	107	struct TCP_header
108		108
109	SourcePort dw ?	109	SourcePort dw ?
110	DestinationPort dw ?	110	DestinationPort dw ?
111	SequenceNumber dd ?	111	SequenceNumber dd ?
112	AckNumber dd ?	112	AckNumber dd ?
113	DataOffset db ? ; DataOffset[0-3 bits] and Reserved[4-7]	113	DataOffset db ? ; DataOffset[0-3 bits] and Reserved[4-7]
114	Flags db ? ; Reserved[0-1 bits]\|URG\|ACK\|PSH\|RST\|SYN\|FIN	114	Flags db ? ; Reserved[0-1 bits]\|URG\|ACK\|PSH\|RST\|SYN\|FIN
115	Window dw ?	115	Window dw ?
116	Checksum dw ?	116	Checksum dw ?
117	UrgentPointer dw ?	117	UrgentPointer dw ?
118		118
119	ends	119	ends
120		120
121	struct TCP_queue_entry	121	struct TCP_queue_entry
122		122
123	ip_ptr dd ?	123	ip_ptr dd ?
124	segment_ptr dd ?	124	segment_ptr dd ?
125	segment_size dd ?	125	segment_size dd ?
126	device_ptr dd ?	126	device_ptr dd ?
127		-
128	buffer_ptr dd ?	-
129	timestamp dd ?	127	timestamp dd ?
-		128	buffer_ptr dd ?
130		129
131	ends	130	ends
132		131
133	uglobal	132	uglobal
134	align 4	133	align 4
135		134
136	TCP_segments_tx rd NET_DEVICES_MAX	135	TCP_segments_tx rd NET_DEVICES_MAX
137	TCP_segments_rx rd NET_DEVICES_MAX	136	TCP_segments_rx rd NET_DEVICES_MAX
138	TCP_segments_missed rd NET_DEVICES_MAX	137	TCP_segments_missed rd NET_DEVICES_MAX
139	TCP_segments_dumped rd NET_DEVICES_MAX	138	TCP_segments_dumped rd NET_DEVICES_MAX
140	; TCP_bytes_rx rq NET_DEVICES_MAX	139	; TCP_bytes_rx rq NET_DEVICES_MAX
141	; TCP_bytes_tx rq NET_DEVICES_MAX	140	; TCP_bytes_tx rq NET_DEVICES_MAX
142	TCP_sequence_num dd ?	141	TCP_sequence_num dd ?
143	TCP_queue rd (TCP_QUEUE_SIZE*sizeof.TCP_queue_entry + sizeof.queue)/4	142	TCP_queue rd (TCP_QUEUE_SIZE*sizeof.TCP_queue_entry + sizeof.queue)/4
144	TCP_input_event dd ?	143	TCP_input_event dd ?
145	TCP_timer1_event dd ?	144	TCP_timer1_event dd ?
146	endg	145	endg
147		146
148	uglobal	147	uglobal
149	align 4	148	align 4
150		149
151	TCPS_accepts dd ? ; #SYNs received in LISTEN state	150	TCPS_accepts dd ? ; #SYNs received in LISTEN state
152	TCPS_closed dd ? ; #connections closed (includes drops)	151	TCPS_closed dd ? ; #connections closed (includes drops)
153	TCPS_connattempt dd ? ; #connections initiated (calls to connect)	152	TCPS_connattempt dd ? ; #connections initiated (calls to connect)
154	TCPS_conndrops dd ? ; #embryonic connections dropped (before SYN received)	153	TCPS_conndrops dd ? ; #embryonic connections dropped (before SYN received)
155	TCPS_connects dd ? ; #connections established actively or passively	154	TCPS_connects dd ? ; #connections established actively or passively
156	TCPS_delack dd ? ; #delayed ACKs sent	155	TCPS_delack dd ? ; #delayed ACKs sent
157	TCPS_drops dd ? ; #connections dropped (after SYN received)	156	TCPS_drops dd ? ; #connections dropped (after SYN received)
158	TCPS_keepdrops dd ? ; #connections dropped in keepalive (established or awaiting SYN)	157	TCPS_keepdrops dd ? ; #connections dropped in keepalive (established or awaiting SYN)
159	TCPS_keepprobe dd ? ; #keepalive probes sent	158	TCPS_keepprobe dd ? ; #keepalive probes sent
160	TCPS_keeptimeo dd ? ; #times keepalive timer or connections-establishment timer expire	159	TCPS_keeptimeo dd ? ; #times keepalive timer or connections-establishment timer expire
161	TCPS_pawsdrop dd ? ; #segments dropped due to PAWS	160	TCPS_pawsdrop dd ? ; #segments dropped due to PAWS
162	TCPS_pcbcachemiss dd ? ; #times PCB cache comparison fails	161	TCPS_pcbcachemiss dd ? ; #times PCB cache comparison fails
163	TCPS_persisttimeo dd ? ; #times persist timer expires	162	TCPS_persisttimeo dd ? ; #times persist timer expires
164	TCPS_predack dd ? ; #times header prediction correct for ACKs	163	TCPS_predack dd ? ; #times header prediction correct for ACKs
165	TCPS_preddat dd ? ; #times header prediction correct for data packets	164	TCPS_preddat dd ? ; #times header prediction correct for data packets
166	TCPS_rcvackbyte dd ? ; #bytes ACKed by received ACKs	165	TCPS_rcvackbyte dd ? ; #bytes ACKed by received ACKs
167	TCPS_rcvackpack dd ? ; #received ACK packets	166	TCPS_rcvackpack dd ? ; #received ACK packets
168	TCPS_rcvacktoomuch dd ? ; #received ACKs for unsent data	167	TCPS_rcvacktoomuch dd ? ; #received ACKs for unsent data
169	TCPS_rcvafterclose dd ? ; #packets received after connection closed	168	TCPS_rcvafterclose dd ? ; #packets received after connection closed
170	TCPS_rcvbadoff dd ? ; #packets received with invalid header length	169	TCPS_rcvbadoff dd ? ; #packets received with invalid header length
171	TCPS_rcvbadsum dd ? ; #packets received with checksum errors	170	TCPS_rcvbadsum dd ? ; #packets received with checksum errors
172	TCPS_rcvbyte dd ? ; #bytes received in sequence	171	TCPS_rcvbyte dd ? ; #bytes received in sequence
173	TCPS_rcvbyteafterwin dd ? ; #bytes received beyond advertised window	172	TCPS_rcvbyteafterwin dd ? ; #bytes received beyond advertised window
174	TCPS_rcvdupack dd ? ; #duplicate ACKs received	173	TCPS_rcvdupack dd ? ; #duplicate ACKs received
175	TCPS_rcvdupbyte dd ? ; #bytes receivedin completely duplicate packets	174	TCPS_rcvdupbyte dd ? ; #bytes receivedin completely duplicate packets
176	TCPS_rcvduppack dd ? ; #packets received with completely duplicate bytes	175	TCPS_rcvduppack dd ? ; #packets received with completely duplicate bytes
177	TCPS_rcvoobyte dd ? ; #out-of-order bytes received	176	TCPS_rcvoobyte dd ? ; #out-of-order bytes received
178	TCPS_rcvoopack dd ? ; #out-of-order packets received	177	TCPS_rcvoopack dd ? ; #out-of-order packets received
179	TCPS_rcvpack dd ? ; #packets received in sequence	178	TCPS_rcvpack dd ? ; #packets received in sequence
180	TCPS_rcvpackafterwin dd ? ; #packets with some data beyond advertised window	179	TCPS_rcvpackafterwin dd ? ; #packets with some data beyond advertised window
181	TCPS_rcvpartdupbyte dd ? ; #duplicate bytes in part-duplicate packets	180	TCPS_rcvpartdupbyte dd ? ; #duplicate bytes in part-duplicate packets
182	TCPS_rcvpartduppack dd ? ; #packets with some duplicate data	181	TCPS_rcvpartduppack dd ? ; #packets with some duplicate data
183	TCPS_rcvshort dd ? ; #packets received too short	182	TCPS_rcvshort dd ? ; #packets received too short
184	TCPS_rcvtotal dd ? ; #total packets received	183	TCPS_rcvtotal dd ? ; #total packets received
185	TCPS_rcvwinprobe dd ? ; #window probe packets received	184	TCPS_rcvwinprobe dd ? ; #window probe packets received
186	TCPS_rcvwinupd dd ? ; #received window update packets	185	TCPS_rcvwinupd dd ? ; #received window update packets
187	TCPS_rexmttimeo dd ? ; #retransmission timeouts	186	TCPS_rexmttimeo dd ? ; #retransmission timeouts
188	TCPS_rttupdated dd ? ; #times RTT estimators updated	187	TCPS_rttupdated dd ? ; #times RTT estimators updated
189	TCPS_segstimed dd ? ; #segments for which TCP tried to measure RTT	188	TCPS_segstimed dd ? ; #segments for which TCP tried to measure RTT
190	TCPS_sndacks dd ? ; #ACK-only packets sent (data length = 0)	189	TCPS_sndacks dd ? ; #ACK-only packets sent (data length = 0)
191	TCPS_sndbyte dd ? ; #data bytes sent	190	TCPS_sndbyte dd ? ; #data bytes sent
192	TCPS_sndctrl dd ? ; #control (SYN, FIN, RST) packets sent (data length = 0)	191	TCPS_sndctrl dd ? ; #control (SYN, FIN, RST) packets sent (data length = 0)
193	TCPS_sndpack dd ? ; #data packets sent (data length > 0)	192	TCPS_sndpack dd ? ; #data packets sent (data length > 0)
194	TCPS_sndprobe dd ? ; #window probes sent (1 byte of data forced by persist timer)	193	TCPS_sndprobe dd ? ; #window probes sent (1 byte of data forced by persist timer)
195	TCPS_sndrexmitbyte dd ? ; #data bytes retransmitted	194	TCPS_sndrexmitbyte dd ? ; #data bytes retransmitted
196	TCPS_sndrexmitpack dd ? ; #data packets retransmitted	195	TCPS_sndrexmitpack dd ? ; #data packets retransmitted
197	TCPS_sndtotal dd ? ; total #packets sent	196	TCPS_sndtotal dd ? ; total #packets sent
198	TCPS_sndurg dd ? ; #packets sent with URG-only (data length=0)	197	TCPS_sndurg dd ? ; #packets sent with URG-only (data length=0)
199	TCPS_sndwinup dd ? ; #window update-only packets sent (data length=0)	198	TCPS_sndwinup dd ? ; #window update-only packets sent (data length=0)
200	TCPS_timeoutdrop dd ? ; #connections dropped in retransmission timeout	199	TCPS_timeoutdrop dd ? ; #connections dropped in retransmission timeout
201		200
202	endg	201	endg
203		202
204		203
205	;-----------------------------------------------------------------	204	;-----------------------------------------------------------------
206	;	205	;
207	; TCP_init	206	; TCP_init
208	;	207	;
209	; This function resets all TCP variables	208	; This function resets all TCP variables
210	;	209	;
211	;-----------------------------------------------------------------	210	;-----------------------------------------------------------------
212	macro TCP_init {	211	macro TCP_init {
213		212
214	xor eax, eax	213	xor eax, eax
215	mov edi, TCP_segments_tx	214	mov edi, TCP_segments_tx
216	mov ecx, (6*NET_DEVICES_MAX)	215	mov ecx, (6*NET_DEVICES_MAX)
217	rep stosd	216	rep stosd
218		217
219	pseudo_random eax	218	pseudo_random eax
220	mov [TCP_sequence_num], eax	219	mov [TCP_sequence_num], eax
221		220
222	init_queue TCP_queue	221	init_queue TCP_queue
223		222
224	movi ebx, 1	223	movi ebx, 1
225	mov ecx, TCP_process_input	224	mov ecx, TCP_process_input
226	call new_sys_threads	225	call new_sys_threads
227	test eax, eax	226	test eax, eax
228	jns @f	227	jns @f
229	DEBUGF DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for TCP input, error %d\n', eax	228	DEBUGF DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for TCP input, error %d\n', eax
230	@@:	229	@@:
231		230
232	movi ebx, 1	231	movi ebx, 1
233	mov ecx, TCP_timer_640ms	232	mov ecx, TCP_timer_640ms
234	call new_sys_threads	233	call new_sys_threads
235	test eax, eax	234	test eax, eax
236	jns @f	235	jns @f
237	DEBUGF DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for TCP timer, error %d\n', eax	236	DEBUGF DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for TCP timer, error %d\n', eax
238	@@:	237	@@:
239		238
240	}	239	}
241		240
242		241
243	include 'tcp_timer.inc'	242	include 'tcp_timer.inc'
244	include 'tcp_subr.inc'	243	include 'tcp_subr.inc'
245	include 'tcp_usreq.inc'	244	include 'tcp_usreq.inc'
246	include 'tcp_input.inc'	245	include 'tcp_input.inc'
247	include 'tcp_output.inc'	246	include 'tcp_output.inc'
248		247
249		248
250	;---------------------------------------------------------------------------	249	;---------------------------------------------------------------------------
251	;	250	;
252	; TCP_API	251	; TCP_API
253	;	252	;
254	; This function is called by system function 76	253	; This function is called by system function 76
255	;	254	;
256	; IN: subfunction number in bl	255	; IN: subfunction number in bl
257	; device number in bh	256	; device number in bh
258	; ecx, edx, .. depends on subfunction	257	; ecx, edx, .. depends on subfunction
259	;	258	;
260	; OUT:	259	; OUT:
261	;	260	;
262	;---------------------------------------------------------------------------	261	;---------------------------------------------------------------------------
263	align 4	262	align 4
264	TCP_api:	263	TCP_api:
265		264
266	movzx eax, bh	265	movzx eax, bh
267	shl eax, 2	266	shl eax, 2
268		267
269	test bl, bl	268	test bl, bl
270	jz .packets_tx ; 0	269	jz .packets_tx ; 0
271	dec bl	270	dec bl
272	jz .packets_rx ; 1	271	jz .packets_rx ; 1
273	dec bl	272	dec bl
274	jz .packets_missed ; 2	273	jz .packets_missed ; 2
275	dec bl	274	dec bl
276	jz .packets_dumped ; 3	275	jz .packets_dumped ; 3
277	dec bl	276	dec bl
278	jz .packets_queued ; 4	277	jz .packets_queued ; 4
279		278
280	.error:	279	.error:
281	mov eax, -1	280	mov eax, -1
282	ret	281	ret
283		282
284	.packets_tx:	283	.packets_tx:
285	mov eax, [TCP_segments_tx + eax]	284	mov eax, [TCP_segments_tx + eax]
286	ret	285	ret
287		286
288	.packets_rx:	287	.packets_rx:
289	mov eax, [TCP_segments_rx + eax]	288	mov eax, [TCP_segments_rx + eax]
290	ret	289	ret
291		290
292	.packets_missed:	291	.packets_missed:
293	mov eax, [TCP_segments_missed + eax]	292	mov eax, [TCP_segments_missed + eax]
294	ret	293	ret
295		294
296	.packets_dumped:	295	.packets_dumped:
297	mov eax, [TCP_segments_dumped + eax]	296	mov eax, [TCP_segments_dumped + eax]
298	ret	297	ret
299		298
300	.packets_queued:	299	.packets_queued:
301	mov eax, [TCP_queue + queue.size]	300	mov eax, [TCP_queue + queue.size]
302	ret	301	ret

Subversion Repositories Kolibri OS

(root)/kernel/branches/Kolibri-acpi/network/tcp.inc – Rev 5201 → 5565