mirror of https://github.com/A2osX/A2osX.git
483 lines
10 KiB
Plaintext
483 lines
10 KiB
Plaintext
PR#3
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PREFIX /A2OSX.BUILD
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF LIB/LIBTCPIP.O
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*--------------------------------------
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.INB INC/MACROS.I
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.INB INC/A2OSX.I
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.INB INC/KERNEL.I
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.INB INC/LIBTCPIP.I
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*--------------------------------------
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ZPFrameBase1 .EQ ZPLIB
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ZPFrameLen1 .EQ ZPLIB+2
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ZPFramePtr1 .EQ ZPLIB+4
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ZPARPIP .EQ ZPLIB+6
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ZPARPMAC .EQ ZPLIB+8
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ZPDNSHostname .EQ ZPLIB+10
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ZPDNSIP .EQ ZPLIB+12
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*--------------------------------------
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* Main entry point
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* input :
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* X = Function
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*--------------------------------------
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* Code signature and relocation table
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*--------------------------------------
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* CLD $D8
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* JMP (*,x) $7C
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* #JMPTABLE
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* /JMPTABLE
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.1 .DA LIB.LOAD
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.DA LIB.UNLOAD
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.DA SET.IPCFG
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.DA GET.IPCFG
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.DA NEW.ICMP.FRAME
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.DA NEW.TCP.FRAME
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.DA NEW.UDP.FRAME
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.DA NEW.IP.FRAME
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.DA NEW.ARP.FRAME
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.DA NEW.ETH.FRAME
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.DA SEND.ICMP.FRAME
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.DA SEND.TCP.FRAME
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.DA SEND.UDP.FRAME
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.DA SEND.IP.FRAME
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.DA SEND.ARP.FRAME
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.DA SEND.ETH.FRAME
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.DA ARP.CLEAR
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.DA ARP.QUERY
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.DA ARP.ADD
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.DA ARP.GETCACHE
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.DA DNS.CLEAR
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.DA DNS.QUERY
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.DA DNS.ADD
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.DA DNS.GETCACHE
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.DA UDP.LISTENER
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.DA TCP.LISTENER
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.DA ADD.LISTENER
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.DA REM.LISTENER
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*--------------------------------------
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L.IPCFG .DA IPCFG
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L.ARP.CACHE .DA ARP.CACHE
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L.DNS.CACHE .DA DNS.CACHE
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.DA 0
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.DA CS.END-CS.START
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.DA DS.END-DS.START
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*--------------------------------------
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LIB.LOAD lda bFirstLoad
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bne .8
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jsr ARP.CLEAR
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jsr DNS.CLEAR
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inc bFirstLoad
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.8 clc
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rts
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*--------------------------------------
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LIB.UNLOAD clc
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rts
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*--------------------------------------
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* PULLW = PTR to S.IPCFG
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*--------------------------------------
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SET.IPCFG >PUSHBI K.PROTOID.IP
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>SYSCALL SYS.SetNetCfg
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bcs GET.IPCFG.RTS
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*--------------------------------------
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* grab a copy on the fly for lib function
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* OUT :
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* Y,A = PTR to S.IPCFG
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*--------------------------------------
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GET.IPCFG lda #K.PROTOID.IP
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>SYSCALL SYS.GetNetCfgA
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bcs GET.IPCFG.RTS
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>STYA ZPQuickPtr1
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ldy #S.IPCFG
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.1 dey
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lda (ZPQuickPtr1),y
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sta IPCFG,y
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tya
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bne .1
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>LDYA ZPQuickPtr1
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clc
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GET.IPCFG.RTS rts
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*--------------------------------------
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* Out:
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* Y,A = Frame PTR
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* X = hMem
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*--------------------------------------
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NEW.ICMP.FRAME jsr NEW.IP.FRAME
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bcs .9
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ldy #S.IP.PROTOCOL
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lda #S.IP.PROTOCOL.ICMP
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sta (ZPFrameBase1),y
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>LDYA ZPFrameBase1
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clc
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.9 rts
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*--------------------------------------
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* Out:
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* Y,A = Frame PTR
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* X = hMem
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*--------------------------------------
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NEW.TCP.FRAME jsr NEW.IP.FRAME
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bcs .9
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ldy #S.IP.PROTOCOL
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lda #S.IP.PROTOCOL.TCP
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sta (ZPFrameBase1),y
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>LDYA ZPFrameBase1
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clc
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.9 rts
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*--------------------------------------
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* Out:
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* Y,A = Frame PTR
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* X = hMem
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*--------------------------------------
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NEW.UDP.FRAME jsr NEW.IP.FRAME
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bcs .9
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ldy #S.IP.PROTOCOL
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lda #S.IP.PROTOCOL.UDP
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sta (ZPFrameBase1),y
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>LDYA ZPFrameBase1
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clc
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.9 rts
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*--------------------------------------
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* Out:
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* Y,A = Frame PTR
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* X = hMem
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*--------------------------------------
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NEW.IP.FRAME jsr NEW.ETH.FRAME
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bcs .9
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ldy #S.ETH.ETHERTYPE
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lda /S.ETH.ETHERTYPE.IP
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sta (ZPFrameBase1),y
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iny
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lda #S.ETH.ETHERTYPE.IP
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sta (ZPFrameBase1),y
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ldy #S.IP.V.IHL.DSCP.ECN
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lda #$45
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sta (ZPFrameBase1),y
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iny
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lda #$0
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sta (ZPFrameBase1),y
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ldy #S.IP.IDENTIFICATION
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sta (ZPFrameBase1),y
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inc
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iny
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sta (ZPFrameBase1),y
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dec
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ldy #S.IP.FRAGMENT.FLAGS
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sta (ZPFrameBase1),y
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iny
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sta (ZPFrameBase1),y
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ldy #S.IP.TTL
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lda #K.IP.TTL
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sta (ZPFrameBase1),y
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>LDYA ZPFrameBase1
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clc
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.9 rts
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*--------------------------------------
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* Out:
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* Y,A = Frame PTR
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* X = hMem
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*--------------------------------------
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NEW.ARP.FRAME jsr NEW.ETH.FRAME
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bcs .9
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ldy #S.ETH.ETHERTYPE
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lda /S.ETH.ETHERTYPE.ARP
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sta (ZPFrameBase1),y
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iny
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lda #S.ETH.ETHERTYPE.ARP
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sta (ZPFrameBase1),y
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ldy #S.ARP.HTYPE
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lda #0
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sta (ZPFrameBase1),y
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iny
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lda #1
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sta (ZPFrameBase1),y
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iny
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lda #8
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sta (ZPFrameBase1),y
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iny
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lda #0
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sta (ZPFrameBase1),y
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iny
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lda #6
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sta (ZPFrameBase1),y
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iny
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lda #4
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sta (ZPFrameBase1),y
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>LDYA ZPFrameBase1
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clc
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.9 rts
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*--------------------------------------
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* Out:
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* Y,A = Frame PTR
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* X = hMem
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*--------------------------------------
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NEW.ETH.FRAME >PUSHWI K.ETH.FRAME.LEN
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>PUSHBI 0
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>SYSCALL SYS.GetMem
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bcs .9
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>STYA ZPFrameBase1
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phx
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txa
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>SYSCALL SYS.ClrMemA
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plx
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clc
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.9 rts
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*--------------------------------------
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* In:
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* Out:
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*--------------------------------------
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SEND.ICMP.FRAME >PULLW ZPFrameBase1
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>PULLW ZPFrameLen1
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>PUSHW ZPFrameLen1
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>PUSHWI S.ICMP.TYPE
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jsr ComputeChecksum
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phy
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ldy #S.ICMP.CHECKSUM
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sta (ZPFrameBase1),y
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iny
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pla
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sta (ZPFrameBase1),y
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bra SEND.IP.FRAME.I
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*--------------------------------------
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* In:
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* Out:
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*--------------------------------------
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SEND.TCP.FRAME >PULLW ZPFrameBase1
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>PULLW ZPFrameLen1
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bra SEND.IP.FRAME.I
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*--------------------------------------
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* In:
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* Out:
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*--------------------------------------
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SEND.UDP.FRAME >PULLW ZPFrameBase1
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>PULLW ZPFrameLen1
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SEND.UDP.FRAME.I
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ldy #S.UDP.LENGTH+1
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lda ZPFrameLen1
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sec
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sbc #S.IP
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sta (ZPFrameBase1),y
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dey
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lda ZPFrameLen1+1
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sbc /S.IP
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sta (ZPFrameBase1),y
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lda #0 SET.UDP.CHECKSUM
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ldy #S.UDP.CHECKSUM (0 = Disable UDP Checksum)
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sta (ZPFrameBase1),y
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iny
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sta (ZPFrameBase1),y
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bra SEND.IP.FRAME.I
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*--------------------------------------
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* In:
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* Out:
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*--------------------------------------
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SEND.IP.FRAME >PULLW ZPFrameBase1
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>PULLW ZPFrameLen1
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SEND.IP.FRAME.I ldx #S.IPCFG.IP
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ldy #S.IP.SRC
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.10 lda IPCFG,x
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sta (ZPFrameBase1),y
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inx
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iny
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cpy #S.IP.SRC+4
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bne .10
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jsr ARP.RESOLVE
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bcs .9
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ldy #S.IP.TOTAL.LENGTH+1
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lda ZPFrameLen1
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sec
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sbc #S.ETH
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sta (ZPFrameBase1),y
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dey
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lda ZPFrameLen1+1
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sbc /S.ETH
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sta (ZPFrameBase1),y
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stz IP.CHECKSUM RESET.IP.CHECKSUM
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stz IP.CHECKSUM+1
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stz IP.CHECKSUM+2
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* stz IP.CHECKSUM+3 Optimized for IP Header
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ldy #S.IP.V.IHL.DSCP.ECN
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.1 lda (ZPFrameBase1),y
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tax
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iny
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lda (ZPFrameBase1),y
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iny
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clc
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adc IP.CHECKSUM
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sta IP.CHECKSUM
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txa
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adc IP.CHECKSUM+1
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sta IP.CHECKSUM+1
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bcc .2
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inc IP.CHECKSUM+2
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*.2 bne .3 Optimized for IP Header
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* inc IP.CHECKSUM+3 Optimized for IP Header
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.2 cpy #S.IP
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bne .1
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lda IP.CHECKSUM
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clc
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adc IP.CHECKSUM+2
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eor #$FF
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ldy #S.IP.HDR.CHECKSUM+1
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sta (ZPFrameBase1),y
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dey
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lda IP.CHECKSUM+1
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* adc IP.CHECKSUM+3 Optimized for IP Header
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adc #0 Optimized for IP Header
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eor #$FF
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sta (ZPFrameBase1),y
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bra SEND.ETH.FRAME
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.9 rts
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*--------------------------------------
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* In:
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* Out:
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*--------------------------------------
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SEND.ARP.FRAME >PULLW ZPFrameBase1
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SEND.ARP.FRAME.I
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>LDYAI S.ARP default ARP Frame length
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>STYA ZPFrameLen1
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*--------------------------------------
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* In:
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* Out:
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*--------------------------------------
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SEND.ETH.FRAME >PUSHW ZPFrameLen1
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>PUSHW ZPFrameBase1
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ldx #S.IPCFG.HDEV
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lda IPCFG,x
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>SYSCALL SYS.DevOutA
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rts
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*--------------------------------------
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UDP.LISTENER >PULLW ZPFrameBase1
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>PULLW ZPFrameLen1
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sec
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rts
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*--------------------------------------
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TCP.LISTENER >PULLW ZPFrameBase1
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>PULLW ZPFrameLen1
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sec
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rts
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*--------------------------------------
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ADD.LISTENER sec
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rts
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*--------------------------------------
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REM.LISTENER sec
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rts
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*--------------------------------------
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.INB LIB/LIBTCPIP.S.ARP
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.INB LIB/LIBTCPIP.S.DNS
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*--------------------------------------
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* PRIVATE
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*--------------------------------------
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ToLowerCaseA cmp #'A'
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bcc .1
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cmp #'Z'+1
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bcs .1
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adc #$20
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.1 rts
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*--------------------------------------
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* In:
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* PULLW = Start Offset
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* PULLW = End Offset
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* Out:
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* Y,A = CheckSum
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*--------------------------------------
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ComputeChecksum >PULLA
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clc
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adc ZPFrameBase1
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sta ZPQuickPtr1
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>PULLA
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adc ZPFrameBase1+1
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sta ZPQuickPtr1+1
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>PULLA
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clc
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adc ZPFrameBase1
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sta ZPQuickPtr2
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>PULLA
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adc ZPFrameBase1+1
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sta ZPQuickPtr2+1
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stz IP.CHECKSUM RESET.IP.CHECKSUM
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stz IP.CHECKSUM+1
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stz IP.CHECKSUM+2
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stz IP.CHECKSUM+3
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ldy #1
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.1 lda (ZPQuickPtr1),y
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clc
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adc IP.CHECKSUM
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sta IP.CHECKSUM
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lda (ZPQuickPtr1)
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adc IP.CHECKSUM+1
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sta IP.CHECKSUM+1
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bcc .3
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inc IP.CHECKSUM+2
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bne .3
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inc IP.CHECKSUM+3
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.3 lda ZPQuickPtr1
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clc
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adc #2
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sta ZPQuickPtr1
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bcc .4
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inc ZPQuickPtr1+1
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.4 cmp ZPQuickPtr2
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bne .1
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lda ZPQuickPtr1+1
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cmp ZPQuickPtr2+1
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bne .1
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lda IP.CHECKSUM
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clc
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adc IP.CHECKSUM+2
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eor #$FF
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tay
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lda IP.CHECKSUM+1
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adc IP.CHECKSUM+3
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eor #$FF
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rts
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*--------------------------------------
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CS.END
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*--------------------------------------
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bFirstLoad .DA #0
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Status .BS 1
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hHOST .BS 1 for DNS Cache functions
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HOST.TTL .BS 2 for DNS Cache functions
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IP.CHECKSUM .BS 4
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IPCFG .BS S.IPCFG
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ARP.CACHE .BS K.ARPCACHE.SIZE*S.ARPCACHE
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DNS.CACHE .BS K.DNSCACHE.SIZE*S.DNSCACHE
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UDP.TABLE .BS K.UDPTABLE.SIZE*S.LISTENER
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TCP.TABLE .BS K.TCPTABLE.SIZE*S.LISTENER
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*--------------------------------------
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DS.START
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DS.END
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*--------------------------------------
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MAN
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SAVE LIB/LIBTCPIP.S
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ASM
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