A2osX/LIB/LIBTCPIP.S.txt

PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
				.LIST OFF	
				.OP	65C02
				.OR	$2000
				.TF /A2OSX.BOOT/LIB/LIBTCPIP.O
*--------------------------------------
				.INB INC/MACROS.I
				.INB INC/A2OSX.I
				.INB INC/LIBTCPIP.I
*--------------------------------------
ZPFrameBase1	.EQ ZPLIB
ZPFrameLen1		.EQ ZPLIB+2
*ZPFramePtr1		.EQ ZPLIB+4
ZPPtrIP			.EQ ZPLIB+12
ZPPtrMAC		.EQ ZPLIB+14
ZPPtrDNS		.EQ ZPLIB+16
ZPPtrSKT		.EQ ZPLIB+18
ZPTmpPtr1		.EQ ZPLIB+20
ZPTmpPtr2		.EQ ZPLIB+22
ZPTmpPtr3		.EQ ZPLIB+24
ZPDataPtr		.EQ ZPLIB+26
ZPDataLen		.EQ ZPLIB+28
ZPCachePtr		.EQ ZPLIB+30
*--------------------------------------
*			File Header (16 Bytes)
*--------------------------------------
CS.START		cld
				jmp (.1,x)
				.DA #$61				6502,Level 1 (65c02)
				.DA #1					BIN Layout Version 1
				.DA 0
				.DA CS.END-CS.START
				.DA 0
				.DA 0
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1				.DA LIB.LOAD
				.DA LIB.UNLOAD	
				
				.DA SET.IPCFG
				.DA GET.IPCFG
				
				.DA NEW.ICMP.FRAME
				.DA NEW.TCP.FRAME
				.DA NEW.UDP.FRAME
				.DA NEW.IP.FRAME
				.DA $ffff				NEW.ARP.FRAME
				.DA $ffff				NEW.ETH.FRAME
				
				.DA SEND.ICMP.FRAME
				.DA SEND.TCP.FRAME
				.DA SEND.UDP.FRAME
				.DA SEND.IP.FRAME
				.DA $ffff				SEND.ARP.FRAME
				.DA $ffff				SEND.ETH.FRAME
				
				.DA ARP.CLEAR
				.DA ARP.QUERY
				.DA ARP.ADD
				.DA ARP.GETCACHE
				
				.DA DNS.CLEAR
				.DA DNS.QUERY
				.DA DNS.ADD
				.DA DNS.GETCACHE
				
				.DA RCVD.FRAMEA
				.DA PULSEA
				
				.DA SKT.NEW	
				.DA $FFFF
				.DA SKT.ACCEPTA
				.DA SKT.SENDA
				.DA SKT.SEND
				.DA SKT.RCVDA
				.DA $FFFF
				.DA SKT.CLOSEA
				.DA SKT.GETTABLE
				.DA SKT.GETA
				
				.DA HST.GETBYNAME
				.DA HST.GETBYADDR
*--------------------------------------
L.IPCFG			.DA IPCFG
L.ARP.REQ		.DA ARP.REQ
L.ARP.REP		.DA ARP.REP
L.DNS.SOCKET	.DA DNS.SOCKET
L.DNS.MSG		.DA DNS.MSG
L.ARP.CACHE		.DA ARP.CACHE
L.DNS.CACHE		.DA DNS.CACHE
L.SKT.TABLE		.DA SKT.TABLE
L.TmpSocket		.DA TmpSocket
L.TCP.MSG		.DA TCP.MSG
				.DA 0
*--------------------------------------
LIB.LOAD		lda bFirstLoad
				bne .8
				jsr ARP.CLEAR
				jsr DNS.CLEAR
				
				>LDYAI K.DYNPORT.START
				>STYA DYNPORT.LAST
				
				inc bFirstLoad
				
.8				clc
				rts
*--------------------------------------
LIB.UNLOAD		clc
				rts
*--------------------------------------
*  PULLW = PTR to S.IPCFG
*--------------------------------------
SET.IPCFG		>PULLW ZPTmpPtr1
				ldy #0
.1				lda (ZPTmpPtr1),y
				sta IPCFG,y
				iny
				cpy #S.IPCFG
				bne .1
				
				ldx #5
.2				lda IPCFG+S.IPCFG.MAC,x
				sta ARP.REQ.SRCMAC,x
				sta ARP.REQ.SHA,x
				sta ARP.REP.SRCMAC,x
				sta ARP.REP.SHA,x
				dex
				bpl .2
				
				ldx #3
.3				lda IPCFG+S.IPCFG.IP,x
				sta ARP.REQ.SPA,x
				sta ARP.REP.SPA,x
				sta DNS.SOCKET.SA,x
				dex
				bpl .3
						
				lda IPCFG+S.IPCFG.HDEV
				
				>SYSCALL SYS.GetDevByIDA
				>STYA NetDevJmp+1

				ldx #DEVMGR.GETINFO
				jsr NetDevJmp
				
				>STYA ZPTmpPtr2
				ldy #S.DEVINFO.FLAGS
				lda (ZPTmpPtr2),y
				sta DevFlags
				and #S.DEVINFO.NET.FLAGS.ARPOFFLOAD
				beq .4
				
				>LDYA ZPTmpPtr1
				ldx #DEVMGR.SETIPCFG
				jsr NetDevJmp
				
.4				lda hDNSSocket1
				beq .41
				jsr SKT.CLOSEA
				
.41				lda hDNSSocket2
				beq .42
				jsr SKT.CLOSEA
				
.42				lda IPCFG+S.IPCFG.DNS1
				beq .6
				
				ldx #3
.5				lda IPCFG+S.IPCFG.DNS1,x
				sta DNS.SOCKET.DA,x
				dex
				bpl .5
				
				>PUSHW L.DNS.SOCKET
				jsr SKT.NEW
				bcs .9

				stx hDNSSocket1
				
.6				lda IPCFG+S.IPCFG.DNS2
				beq .8
				
				ldx #3
.7				lda IPCFG+S.IPCFG.DNS2,x
				sta DNS.SOCKET.DA,x
				dex
				bpl .7
				
				>PUSHW L.DNS.SOCKET
				jsr SKT.NEW
				bcs .9
			
				stx hDNSSocket2
				
.8				>LDYA ZPTmpPtr1
				clc
.9				rts
*--------------------------------------
* grab a copy on the fly for lib function
* OUT :
*  Y,A = PTR to S.IPCFG
*--------------------------------------
GET.IPCFG		>LDYA L.IPCFG
				clc
				rts
*--------------------------------------
* Expire = every sec
* Retry = every 100 msec
*--------------------------------------
PULSEA			asl
				bpl .1
				jsr ARP.EXPIRE
				jsr DNS.EXPIRE
.1				jmp FRM.RETRY				
*--------------------------------------
ToLowerCaseA	cmp #'A'
				bcc .1
				cmp #'Z'+1
				bcs .1
				adc #$20
.1				rts				
*--------------------------------------
GetDynPort		inc DYNPORT.LAST
				bne .1
				inc DYNPORT.LAST+1
				lda DYNPORT.LAST
				sec
				sbc #K.DYNPORT.END
				lda DYNPORT.LAST+1
				sbc /K.DYNPORT.END
				bcs .1
				>LDAXI K.DYNPORT.START
				>STAX DYNPORT.LAST
				rts						CC
				
.1				>LDAX DYNPORT.LAST
				clc
				rts
*--------------------------------------
DecDataLen		lda ZPDataLen
				bne .1
				lda ZPDataLen+1
				beq .9
				dec ZPDataLen+1
.1				dec ZPDataLen
				lda #$FF				Make NZ
.9				rts
*--------------------------------------
NetDevJmp		jmp *
*--------------------------------------
				.INB LIB/LIBTCPIP.S.FRM
				.INB LIB/LIBTCPIP.S.ARP
				.INB LIB/LIBTCPIP.S.IP
				.INB LIB/LIBTCPIP.S.ICMP
				.INB LIB/LIBTCPIP.S.UDP
				.INB LIB/LIBTCPIP.S.TCP
				.INB LIB/LIBTCPIP.S.DNS
				.INB LIB/LIBTCPIP.S.SKT
				.INB LIB/LIBTCPIP.S.HST
*--------------------------------------
CS.END
*--------------------------------------
ARP.REQ			.DA S.ARP-2				Frame size
ARP.REQ.DSTMAC	.HS FFFFFFFFFFFF
ARP.REQ.SRCMAC	.BS 6
ARP.REQ.ETYPE	.DA /S.ETH.ETHERTYPE.ARP
				.DA #S.ETH.ETHERTYPE.ARP
				.HS 0001.0800.06.04
ARP.REQ.OP		.DA /S.ARP.OPERATION.REQ
				.DA #S.ARP.OPERATION.REQ
ARP.REQ.SHA		.BS 6
ARP.REQ.SPA		.BS 4
ARP.REQ.THA		.BS 6
ARP.REQ.TPA		.BS 4
*--------------------------------------
ARP.REP			.DA S.ARP-2				Frame size
ARP.REP.DSTMAC	.BS 6
ARP.REP.SRCMAC	.BS 6
ARP.REP.ETYPE	.DA /S.ETH.ETHERTYPE.ARP
				.DA #S.ETH.ETHERTYPE.ARP
				.HS 0001.0800.06.04
ARP.REP.OP		.DA /S.ARP.OPERATION.REP
				.DA #S.ARP.OPERATION.REP
ARP.REP.SHA		.BS 6
ARP.REP.SPA		.BS 4
ARP.REP.THA		.BS 6
ARP.REP.TPA		.BS 4
*--------------------------------------
TCP.MSG			.DA S.TCP-2+4			+4 bytes for MSS option
				.BS 12					ETH:MAC+MAC
				.DA /S.ETH.ETHERTYPE.IP
				.DA #S.ETH.ETHERTYPE.IP
				
				.DA $0045				IP:
				.BS 6					LEN+ID+Frag
				.DA #K.IP.TTL
				.DA #S.IP.PROTOCOL.TCP
				.BS 2					Checksum
				.BS 8					IP:DST,SRC
				
				.BS 4					TCP:Ports
				.BS 8					SEQ,ACK
				.DA #$60				6 DWORD
				.BS 1					Options
				.DA /K.TCP.WSIZE
				.DA #K.TCP.WSIZE
				.BS 4					CHK,URG
				.HS 0204				MSS option
				.DA /K.TCP.MSS
				.DA #K.TCP.MSS
*--------------------------------------
DNS.SOCKET		.DA #S.SOCKET.SOCK.DGRAM
				.BS 3
DNS.SOCKET.SA	.BS 4
DNS.SOCKET.SP	.DA 0					Dynamic
DNS.SOCKET.DA	.BS 4
DNS.SOCKET.DP	.DA UDP.PORT.DNS
				.BS 16
*--------------------------------------
DNS.MSG.LEN		.BS 2
DNS.MSG
DNS.MSG.ID		.BS 2
				.DA /S.DNS.F.RD			Flags=query
				.DA #S.DNS.F.RD			
				.DA $100				QDCOUNT
				.BS 6					ANCOUNT,NSCOUNT,ARCOUNT
DNS.MSG.NAME	.BS K.DNS.MAXLEN+6
*--------------------------------------
IPCFG			.BS S.IPCFG
ARP.CACHE		.BS K.ARPCACHE.SIZE*S.ARPCACHE
DNS.CACHE		.BS K.DNSCACHE.SIZE*S.DNSCACHE
SKT.TABLE		.BS K.SKTTABLE.SIZE*S.SOCKET
FRM.QUEUE.Tail	.BS 1
FRM.QUEUE.Head	.BS 1 
FRM.QUEUE.hMem	.BS K.FRMQUEUE.SIZE
FRM.QUEUE.State	.BS K.FRMQUEUE.SIZE
FRM.QUEUE.Retry	.BS K.FRMQUEUE.SIZE
*--------------------------------------
bFirstLoad		.DA #0
DevFlags		.BS 1
DYNPORT.LAST	.BS 2
hDNSSocket1		.BS 1
hDNSSocket2		.BS 1
DNS.HostNameLen	.BS 1
DNS.HostName	.BS K.DNS.MAXLEN+1
DNS.TmpCache	.BS	S.DNSCACHE
ARP.TmpCache	.BS S.ARP
TmpDWord		.BS 4
TmpSocket		.BS S.SOCKET
hFrame1			.BS 1
hSocket			.BS 1
TmpOffset		.BS 2
HST.DecStr		.BS 4
HST.IP			.BS 5
IP.CHECKSUM		.BS 4
*--------------------------------------
MAN
SAVE LIB/LIBTCPIP.S
ASM