NEW AUTO 3,1 .LIST OFF */-------------------------------------- * # Socket * Create a new socket * ## C * `hFD socket(short int type, short int protocol);` * ## ASM * **In:** * `>PUSHB protocol` * `lda type` * `>LIBCALL hLIBTCPIP,LIBTCPIP.socket` * ## RETURN VALUE * CC: A = hSOCKET * CS: A = EC *\-------------------------------------- SKT.Socket tax >PULLA get protocol (RAW) SKT.Socket.I jmp (J.SKT.Socket,x) SKT.Socket.RAW ldy #S.SOCKET bra SKT.Socket.DSOCK SKT.Socket.DGRAM lda #S.IP.PROTOCOL.UDP ldy #S.SOCKET bra SKT.Socket.DSOCK SKT.Socket.SEQPACKET lda #S.IP.PROTOCOL.TCP ldy #S.SOCKET.TCP SKT.Socket.DSOCK stx FD.DSOCK+S.SOCKET.T save type sta FD.DSOCK+S.SOCKET.PROTO ICMP,UDP,TCP lda #0 Y = socket.size >SYSCALL2 GetMem0 bcs .9 >STYA ZPTmpPtr1 jsr SKT.Socket.FindFree bcs .9 ldy #FD.DSOCK.SIZE-1 .1 lda FD.DSOCK,y sta (ZPTmpPtr1),y dey bpl .1 txa clc .9 rts SKT.Socket.STREAM lda #S.IP.PROTOCOL.TCP ldy #S.SOCKET.TCP stx FD.SSOCK+S.SOCKET.T save type sta FD.SSOCK+S.SOCKET.PROTO lda #0 Y = socket.size >SYSCALL2 GetMem0 bcs .9 >STYA ZPTmpPtr1 jsr SKT.Socket.FindFree bcs .9 ldy #FD.SSOCK.SIZE-1 .1 lda FD.SSOCK,y sta (ZPTmpPtr1),y dey bpl .1 txa clc .9 rts SKT.Socket.FindFree ldy #0 .1 lda SKT.TABLE,y beq .2 iny cpy #K.SKTTABLE.SIZE bne .1 txa >SYSCALL2 freemem lda #E.OOH sec rts .2 txa sta SKT.TABLE,y clc rts */-------------------------------------- * # Bind * bind a name to a socket * ## C * `int bind(hFD fd, const struct sockaddr *addr);` * ## ASM * **In:** * `>PUSHW addr` * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.socket` * ## RETURN VALUE * CC: A = hSOCKET * CS: A = EC *\-------------------------------------- SKT.bind >SYSCALL2 GetMemPtr >STYA ZPPtrSKT jsr SKT.PullLocAddr lda SKT.LOC.ADDR+S.SOCKADDR.PORT bne .1 ldx SKT.LOC.ADDR+S.SOCKADDR.PORT+1 bne .1 jsr GetDynPort sta SKT.LOC.ADDR+S.SOCKADDR.PORT stx SKT.LOC.ADDR+S.SOCKADDR.PORT+1 .1 ldx #0 .2 lda SKT.TABLE,x beq .7 phx >SYSCALL2 GetMemPtr >STYA ZPTmpPtr1 plx ldy #S.SOCKET.AF lda (ZPTmpPtr1),y cmp #AF.INET bne .7 ldy #S.SOCKET.LOC.ADDR .3 lda (ZPTmpPtr1),y cmp SKT.LOC.ADDR+S.SOCKADDR.ADDR-S.SOCKET.LOC.ADDR,y bne .7 iny cpy #S.SOCKET.LOC.PORT+2 bne .3 lda #ERR.SKT.BUSY * sec rts .7 inx cpx #K.SKTTABLE.SIZE bne .2 jmp SKT.SetLocAddr */-------------------------------------- * # Connect * Initiate a connection on a socket * ## C * `int connect(hFD fd, const struct sockaddr *addr);` * ## ASM * **In:** * `>PUSHW addr` * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.socket` * ## RETURN VALUE * CC: A = hSOCKET * CS: A = EC *\-------------------------------------- SKT.connect >SYSCALL2 GetMemPtr >STYA ZPPtrSKT jsr SKT.PullRemAddr ldy #S.SOCKET.T lda (ZPPtrSKT),y tax jmp (J.SKT.connect,x) SKT.connect.RAW SKT.connect.DGRAM jmp SKT.SetRemAddr SKT.connect.STREAM SKT.connect.SEQPACKET jsr SKT.SetRemAddr jsr SKT.NewTCB bcs .99 lda #S.TCP.OPTIONS.SYN jsr TCP.OUT.SendOptA Send SYN bcs .9 lda #S.SOCKET.TCP.S.SYNSENT jmp SKT.StoreTCB.S .9 lda #ERR.SKT.BAD sec .99 rts */-------------------------------------- * # Listen * Listen for connections on a socket * ## C * `int listen(hFD fd);` * ## ASM * **In:** * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.listen` * ## RETURN VALUE * CS: A = EC *\-------------------------------------- SKT.listen >SYSCALL2 GetMemPtr >STYA ZPPtrSKT ldy #S.SOCKET.T lda (ZPPtrSKT),y cmp #S.SOCKET.T.SEQPACKET+1 bcc .9 ldy #S.SOCKET.TCP.S lda (ZPPtrSKT),y bne .9 lda #S.SOCKET.TCP.S.LISTEN sta (ZPPtrSKT),y ldy #S.SOCKET.O lda #S.SOCKET.O.ACCEPTCONN sta (ZPPtrSKT),y clc rts .9 lda #ERR.SKT.BAD sec rts */-------------------------------------- * # Accept * Accept a connection on a socket * ## C * `hFD Accept(hFD fd);` * ## ASM * **In:** * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.accept` * ## RETURN VALUE * A = hSocket *\-------------------------------------- SKT.Accept >SYSCALL2 GetMemPtr >STYA ZPPtrSKT ldy #S.SOCKET.O lda (ZPPtrSKT),y and #S.SOCKET.O.ACCEPTCONN beq .99 ldy #S.SOCKET.HQ.TAIL lda (ZPPtrSKT),y ldy #S.SOCKET.HQ.HEAD cmp (ZPPtrSKT),y beq .9 CS pha inc cmp #S.SOCKET.HQ.MAX bne .1 lda #0 .1 ldy #S.SOCKET.HQ.TAIL sta (ZPPtrSKT),y pla clc adc #S.SOCKET.HQ tay lda (ZPPtrSKT),y clc rts .99 lda #ERR.SKT.BAD sec .9 rts */-------------------------------------- * # Shutdown * Close socket * ## C * `int shutdown(int fd);` * ## ASM * **In:** * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.shutdown` * ## RETURN VALUE *\-------------------------------------- SKT.shutdown pha >SYSCALL2 GetMemPtr >STYA ZPPtrSKT ldy #S.SOCKET.O lda (ZPPtrSKT),y and #S.SOCKET.O.ACCEPTCONN bne SKT.shutdown.LISTEN ldy #S.SOCKET.T lda (ZPPtrSKT),y tax jmp (J.SKT.shutdown,x) SKT.shutdown.LISTEN SKT.shutdown.RAW SKT.shutdown.DGRAM SKT.shutdown.SEQPACKET .1 ldy #S.SOCKET.HQ.TAIL lda (ZPPtrSKT),y ldy #S.SOCKET.HQ.HEAD cmp (ZPPtrSKT),y beq .3 No frame in Queue, close.. pha save tail... clc adc #S.SOCKET.HQ tax pla inc cmp #S.SOCKET.HQ.MAX beq .2 lda #0 .2 ldy #S.SOCKET.HQ.TAIL sta (ZPPtrSKT),y txa tay lda (ZPPtrSKT),y >SYSCALL2 FreeMem bra .1 .3 pla get hFD... ldx #0 .4 cmp SKT.TABLE,x beq .5 inx cpx #K.SKTTABLE.SIZE bne .4 .5 stz SKT.TABLE,x >SYSCALL2 freemem clc rts SKT.shutdown.STREAM pla jsr SKT.GetTCB ldy #S.SOCKET.TCP.S lda (ZPPtrSKT),y cmp #S.SOCKET.TCP.S.ESTBLSH bne .1 lda #S.TCP.OPTIONS.FIN+S.TCP.OPTIONS.ACK jsr TCP.OUT.SendOptA bcs .9 lda #S.SOCKET.TCP.S.FINWT1 jmp SKT.StoreTCB.S .1 cmp #S.SOCKET.TCP.S.TIMEWT beq .8 lda #S.TCP.OPTIONS.RST+S.TCP.OPTIONS.ACK jsr TCP.OUT.SendOptA bcs .9 lda #S.SOCKET.TCP.S.TIMEWT jmp SKT.StoreTCB.S .8 clc .9 rts */-------------------------------------- * # Read (STREAM) * ## C * `int skt.read(hFD fd, void *buf, int count);` * ## ASM * **In:** * `>PUSHWI count` * `>PUSHW buf` * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.read` * ## RETURN VALUE * CC: Y,A = bytes read * CS: A = EC *\-------------------------------------- SKT.Read jsr SKT.PullhFDDataInPtrLen ldy #S.SOCKET.TCP.INUSED lda (ZPPtrSKT),y iny ora (ZPPtrSKT),y bne SKT.GetDataFromSktIn jsr SKT.CheckStream bcs .99 I/O error ldy #S.SOCKET.TCP.O lda (ZPPtrSKT),y bit #S.TCP.OPTIONS.ACK beq .8 jsr TCP.OUT.SendOptA .8 lda #E.NODATA sec .99 rts *-------------------------------------- * In: * Src : hInMem/INTAIL * Dst : ZPDataOutPtr/ZPDataOutLen * Out: * Y,A = bytes read *-------------------------------------- SKT.GetDataFromSktIn jsr SKT.GetTCB ldy #S.SOCKET.SQ.hInMem lda (ZPPtrSKT),y >SYSCALL2 GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.Cache+S.SOCKET.TCP.INTAIL sta ZPTmpPtr2 lda ZPTmpPtr1+1 adc SKT.Cache+S.SOCKET.TCP.INTAIL+1 sta ZPTmpPtr2+1 lda ZPDataInLen eor #$FF tax lda ZPDataInLen+1 eor #$FF pha stz ZPTmpPtr3 Reset byte counter stz ZPTmpPtr3+1 ldy #0 .1 inx Check if room left in dest buffer bne .2 pla inc beq .8 pha .2 lda SKT.Cache+S.SOCKET.TCP.INTAIL eor SKT.Cache+S.SOCKET.TCP.INHEAD bne .3 lda SKT.Cache+S.SOCKET.TCP.INTAIL+1 eor SKT.Cache+S.SOCKET.TCP.INHEAD+1 beq .7 .3 lda (ZPTmpPtr2) pha inc SKT.Cache+S.SOCKET.TCP.INTAIL bne .4 inc SKT.Cache+S.SOCKET.TCP.INTAIL+1 lda SKT.Cache+S.SOCKET.TCP.INTAIL+1 cmp /K.TCP.WSIZE bne .4 stz SKT.Cache+S.SOCKET.TCP.INTAIL+1 lda ZPTmpPtr1 sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .5 .4 inc ZPTmpPtr2 bne .5 inc ZPTmpPtr2+1 .5 pla get back data.... .6 sta (ZPDataInPtr),y iny bne .61 inc ZPDataInPtr+1 .61 inc ZPTmpPtr3 bne .1 inc ZPTmpPtr3+1 bra .1 .7 pla discard byte counter HI .8 >ADC16 SKT.Cache+S.SOCKET.TCP.INFREE,ZPTmpPtr3 >SBC16 SKT.Cache+S.SOCKET.TCP.INUSED,ZPTmpPtr3 lda SKT.Cache+S.SOCKET.TCP.OUTACKNUM+3 clc adc ZPTmpPtr3 sta SKT.Cache+S.SOCKET.TCP.OUTACKNUM+3 lda SKT.Cache+S.SOCKET.TCP.OUTACKNUM+2 adc ZPTmpPtr3+1 sta SKT.Cache+S.SOCKET.TCP.OUTACKNUM+2 bcc .80 inc SKT.Cache+S.SOCKET.TCP.OUTACKNUM+1 bne .80 inc SKT.Cache+S.SOCKET.TCP.OUTACKNUM .80 jsr SKT.StoreTCB jsr TCP.SetSocketTCPO.ACK Send the new WSIZE jsr TCP.OUT.I SKT.GetTCB already called >LDYA ZPTmpPtr3 clc rts */-------------------------------------- * # Write (STREAM) * ## C * `int skt.write(hFD fd, const void *buf, int count);` * ## ASM * **In:** * `>PUSHWI count` * `>PUSHW buf` * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.write` * ## RETURN VALUE * CC: Y,A = bytes written * CS: A = EC *\-------------------------------------- SKT.Write jsr SKT.PullhFDDataInPtrLen jsr SKT.CheckStream bcs .99 jsr SKT.GetTCB ldx SKT.Cache+S.SOCKET.TCP.OUTFREE cpx ZPDataInLen lda SKT.Cache+S.SOCKET.TCP.OUTFREE+1 sbc ZPDataInLen+1 bcs SKT.AddDataToSktOut lda #E.NODATA Not enough room in Q,no data transfered sec .99 rts *-------------------------------------- * Src : ZPDataInPtr/ZPDataInLen * Dst : hOutMem/OUTHEAD *-------------------------------------- SKT.AddDataToSktOut ldy #S.SOCKET.SQ.hOutMem lda (ZPPtrSKT),y >SYSCALL2 GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.Cache+S.SOCKET.TCP.OUTHEAD sta ZPTmpPtr2 lda ZPTmpPtr1+1 adc SKT.Cache+S.SOCKET.TCP.OUTHEAD+1 sta ZPTmpPtr2+1 Make ZPTmpPtr2=base+Tail lda ZPDataInLen eor #$FF tax lda ZPDataInLen+1 eor #$FF pha ldy #0 .1 inx bne .2 pla inc beq .8 pha .2 lda (ZPDataInPtr),y sta (ZPTmpPtr2) iny bne .3 inc ZPDataInPtr+1 .3 inc ZPTmpPtr2 bne .4 inc ZPTmpPtr2+1 .4 inc SKT.Cache+S.SOCKET.TCP.OUTHEAD bne .1 inc SKT.Cache+S.SOCKET.TCP.OUTHEAD+1 lda SKT.Cache+S.SOCKET.TCP.OUTHEAD+1 cmp /K.TCP.WSIZE bne .1 stz SKT.Cache+S.SOCKET.TCP.OUTHEAD+1 lda ZPTmpPtr1 Dst Ptr=Buffer Base sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .1 .8 >SBC16 SKT.Cache+S.SOCKET.TCP.OUTFREE,ZPDataInLen >ADC16 SKT.Cache+S.SOCKET.TCP.OUTUSED,ZPDataInLen >ADC16 SKT.Cache+S.SOCKET.TCP.OUTTOSEND,ZPDataInLen jsr SKT.StoreTCB jsr TCP.OUT.I SKT.GetTCB called, try to push, ignore error.... .88 >LDYA ZPDataInLen clc rts */-------------------------------------- * # Recv (RAW,DGRAM,SEQPACKET) * # RecvFrom (RAW,DGRAM,SEQPACKET) * ## C * `hMem recv(hFD fd);` * `hMem recvfrom(hFD fd, struct sockaddr *addr);` * ## ASM * **In:** * `>PUSHW addr` (RecvFrom) * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.Recv` * ## RETURN VALUE * CC: A = hMem * CS: A = EC *\-------------------------------------- SKT.RecvFrom pha >PULLW ZPTmpPtr1 addr pla sec .HS 90 BCC SKT.Recv clc php >SYSCALL2 GetMemPtr >STYA ZPPtrSKT ldy #S.SOCKET.T lda (ZPPtrSKT),y cmp #S.SOCKET.T.STREAM beq .99 ldy #S.SOCKET.HQ.TAIL lda (ZPPtrSKT),y tax ldy #S.SOCKET.HQ.HEAD cmp (ZPPtrSKT),y beq .90 inc cmp #S.SOCKET.HQ.MAX bne .1 lda #0 .1 ldy #S.SOCKET.HQ.TAIL sta (ZPPtrSKT),y txa clc adc #S.SOCKET.HQ tay lda (ZPPtrSKT),y plp bcc .9 Exit with CC and A=hFrame pha >SYSCALL2 GetMemPtr >STYA ZPFrameInPtr ldy #S.IP.SRC .2 lda (ZPFrameInPtr),y sta SA.REMOTE+S.SOCKADDR.ADDR-S.IP.SRC,y iny cpy #S.IP.SRC+4 bne .2 ldy #S.IP.PROTOCOL lda (ZPFrameInPtr),y cmp #S.IP.PROTOCOL.ICMP bne .3 ldy #S.ICMP.IDENTIFIER bra .7 .3 cmp #S.IP.PROTOCOL.TCP beq .6 cmp #S.IP.PROTOCOL.UDP bne .8 .6 ldy #S.TCPUDP.SRCPORT .7 lda (ZPFrameInPtr),y sta SA.REMOTE+S.SOCKADDR+1 iny lda (ZPFrameInPtr),y sta SA.REMOTE+S.SOCKADDR .8 lda #S.SOCKADDR-1 .80 lda SA.REMOTE,y sta (ZPTmpPtr1),y dey bpl .80 pla clc .9 rts .99 plp lda #ERR.SKT.BAD sec rts .90 plp lda #0 no data sec rts */-------------------------------------- * # Send (RAW,DGRAM,SEQPACKET) * # SendTo (RAW,DGRAM,SEQPACKET) * ## C * `int skt.send(hFD fd, const void *buf, int count);` * `int skt.sendto(hFD fd, const void *buf, int count, const struct sockaddr *addr);` * ## ASM * **In:** * `>PUSHW addr` (SendTo) * `>PUSHWI count` * `>PUSHW buf` * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.send` * ## RETURN VALUE * CC: Y,A = bytes written * CS: A = EC *\-------------------------------------- SKT.SendTo sec .HS 90 BCC SKT.Send clc php jsr SKT.PullhFDDataInPtrLen plp bcc .1 jsr SKT.PullRemAddr jsr SKT.SetRemAddr .1 ldy #S.SOCKET.T lda (ZPPtrSKT),y tax jmp (J.SKT.send,x) *-------------------------------------- SKT.Send.RAW ldy #S.SOCKET.PROTO lda (ZPPtrSKT),y tax >LDYA ZPDataInLen jsr FRM.NewIP bcs SKT.Send.9 bra SKT.Send.DGRAM.8 *-------------------------------------- SKT.Send.DGRAM ldx #S.IP.PROTOCOL.UDP >LDYA ZPDataInLen jsr FRM.NewIP bcs SKT.Send.9 jsr SKT.SetFrameOutTCPUDPPorts SKT.Send.DGRAM.8 jsr SKT.SetFrameOutDstIP jsr SKT.CopyDataInToOut jmp FRM.SendIP *-------------------------------------- SKT.Send.STREAM lda #ERR.SKT.BAD sec SKT.Send.9 rts *-------------------------------------- SKT.Send.SEQPACKET bra * */-------------------------------------- * # GetSockOpt * Set Socket Options * ## C * `int getsockopt(hFD fd);` * ## ASM * **In:** * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.GetSockOpt` * ## RETURN VALUE *\-------------------------------------- SKT.getsockopt >SYSCALL2 GetMemPtr >STYA ZPPtrSKT ldy #S.SOCKET.O lda (ZPPtrSKT),y * clc rts */-------------------------------------- * # SetSockOpt * Set Socket Options * ## C * `int setsockopt(hFD fd, short int opts);` * ## ASM * **In:** * `>PUSHBI opts` * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.SetSockOpt` * ## RETURN VALUE *\-------------------------------------- SKT.setsockopt >SYSCALL2 GetMemPtr >STYA ZPPtrSKT >PULLA ldy #S.SOCKET.O sta (ZPPtrSKT),y * clc rts */-------------------------------------- * # EOF * End Of File * ## C * `int eof(hFD fd);` * ## ASM * **In:** * `lda fd` * `>LIBCALL hLIBTCPIP,LIBTCPIP.EOF` * ## RETURN VALUE * CC : A = 0 if some data, A = $ff if EOF * CS : A = Socket Error *\-------------------------------------- SKT.EOF >SYSCALL2 GetMemPtr >STYA ZPPtrSKT SKT.EOF.I ldy #S.SOCKET.TCP.INUSED lda (ZPPtrSKT),y iny ora (ZPPtrSKT),y bne .8 some DATA... jsr SKT.CheckStream bcs .9 lda #$ff no DATA, EOF = true clc rts .8 lda #0 ...EOF = false clc .9 rts *-------------------------------------- SKT.CheckStream ldy #S.SOCKET.T lda (ZPPtrSKT),y cmp #S.SOCKET.T.STREAM bne .99 ldy #S.SOCKET.O lda (ZPPtrSKT),y and #S.SOCKET.O.ACCEPTCONN bne .99 ldy #S.SOCKET.TCP.S lda (ZPPtrSKT),y cmp #S.SOCKET.TCP.S.ESTBLSH bcc .8 cmp #S.SOCKET.TCP.S.CLWAIT bcs .91 .8 lda #0 rts CC=ESTBLSH...or less .91 lda #MLI.E.IO sec rts .99 lda #ERR.SKT.BAD sec rts */-------------------------------------- * # GetTable * Get socket table * ## C * `void * gettable();` * ## ASM * **In:** * `>LIBCALL hLIBTCPIP,LIBTCPIP.GetTable` * ## RETURN VALUE *\-------------------------------------- SKT.GetTable >LDYA L.SKT.Table clc rts *-------------------------------------- SKT.PullhFDDataInPtrLen >SYSCALL2 GetMemPtr >STYA ZPPtrSKT >PULLW ZPDataInPtr !!!DataOut trashed when sending ACK in TCP.OUT >PULLW ZPDataInLen !!!use DataInPtr/Len rts *-------------------------------------- SKT.PullLocAddr >PULLW ZPTmpPtr1 ldy #S.SOCKADDR-1 .1 lda (ZPTmpPtr1),y sta SKT.LOC.ADDR,y dey bpl .1 rts *-------------------------------------- SKT.PullRemAddr >PULLW ZPTmpPtr1 ldy #S.SOCKADDR-1 .1 lda (ZPTmpPtr1),y sta SKT.REM.ADDR,y dey bpl .1 rts *-------------------------------------- SKT.SetLocAddr ldy #S.SOCKET.LOC.PORT+1 .1 lda SKT.LOC.ADDR+S.SOCKADDR.ADDR-S.SOCKET.LOC.ADDR,y sta (ZPPtrSKT),y dey cpy #S.SOCKET.LOC.ADDR bcs .1 rts *-------------------------------------- SKT.SetRemAddr ldy #S.SOCKET.REM.PORT+1 .1 lda SKT.REM.ADDR+S.SOCKADDR.ADDR-S.SOCKET.REM.ADDR,y sta (ZPPtrSKT),y dey cpy #S.SOCKET.REM.ADDR bcs .1 rts *-------------------------------------- SKT.FindMatchingLocRem .DO IPDEBUG=1 jsr FRM.Dump .FIN ldx #0 .1 lda SKT.TABLE,x beq .8 phx >SYSCALL2 GetMemPtr >STYA ZPPtrSKT .DO IPDEBUG=1 jsr SKT.Dump .FIN plx ldy #S.SOCKET.AF lda (ZPPtrSKT),y cmp #AF.INET bne .8 ldy #S.SOCKET.LOC.ADDR .2 lda (ZPPtrSKT),y bne .4 ldy #S.SOCKET.LOC.PORT bound to 0.0.0.0,check only LOC port .3 lda (ZPPtrSKT),y .4 cmp SKT.LOC.ADDR+S.SOCKADDR.ADDR-S.SOCKET.LOC.ADDR,y bne .8 iny cpy #S.SOCKET.LOC.PORT+2 bne .3 ldy #S.SOCKET.O lda (ZPPtrSKT),y and #S.SOCKET.O.ACCEPTCONN beq .6 ldy #S.TCP.OPTIONS Listening, only SYN packet.... lda (ZPFrameInPtr),y cmp #S.TCP.OPTIONS.SYN beq .7 SYN recieved on a LISTEN socket, ok bne .8 bad packet for this listening .6 lda SKT.REM.ADDR+S.SOCKADDR.ADDR cmp #$ff FF.FF.FF.FF, Broadcast ? bne .41 * ldy #S.SOCKET.O lda (ZPPtrSKT),y and #S.SOCKET.O.BROADCAST beq .9 this socket does not accept broadcast bra .43 .41 ldy #S.SOCKET.REM.ADDR .5 lda (ZPPtrSKT),y cmp #$ff accept 255.255.255.255 ? bne .42 .43 ldy #S.SOCKET.REM.PORT Boradcast, check port only .42 lda (ZPPtrSKT),y cmp SKT.REM.ADDR+S.SOCKADDR.ADDR-S.SOCKET.REM.ADDR,y bne .8 wrong remote host, exit.... iny cpy #S.SOCKET.REM.PORT+2 bne .42 .7 stx SKT.Index x = SKT.TABLE index clc rts .8 inx cpx #K.SKTTABLE.SIZE bne .1 .9 sec rts *-------------------------------------- SKT.AddToQueueA pha ldy #S.SOCKET.HQ.HEAD lda (ZPPtrSKT),y tax inc cmp #S.SOCKET.HQ.MAX bne .1 lda #0 .1 ldy #S.SOCKET.HQ.TAIL cmp (ZPPtrSKT),y beq .9 Queue full!! ldy #S.SOCKET.HQ.HEAD sta (ZPPtrSKT),y txa clc adc #S.SOCKET.HQ tay pla sta (ZPPtrSKT),y clc rts .9 pla dicard hFrame * sec rts *-------------------------------------- * From TCP.IN * Src : ZPDataInPtr/ZPDataInLen * Dst : hInMem/INHEAD *-------------------------------------- SKT.AddDataToSktIn ldx SKT.Cache+S.SOCKET.TCP.INFREE cpx ZPDataInLen lda SKT.Cache+S.SOCKET.TCP.INFREE+1 sbc ZPDataInLen+1 bcc .9 Not enough room in Q ldy #S.TCP.SEQNUM+3 ldx #3 .10 lda (ZPFrameInPtr),y eor SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM,x bne .9 dey dex bpl .10 ldy #S.SOCKET.SQ.hInMem lda (ZPPtrSKT),y >SYSCALL2 GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.Cache+S.SOCKET.TCP.INHEAD sta ZPTmpPtr2 lda ZPTmpPtr1+1 adc SKT.Cache+S.SOCKET.TCP.INHEAD+1 sta ZPTmpPtr2+1 Make ZPTmpPtr2=base+Tail lda ZPDataInLen eor #$FF tax lda ZPDataInLen+1 eor #$FF pha ldy #0 .1 inx bne .2 pla inc beq .8 pha .2 lda (ZPDataInPtr),y sta (ZPTmpPtr2) iny bne .3 inc ZPDataInPtr+1 .3 inc ZPTmpPtr2 bne .4 inc ZPTmpPtr2+1 .4 inc SKT.Cache+S.SOCKET.TCP.INHEAD bne .1 inc SKT.Cache+S.SOCKET.TCP.INHEAD+1 lda SKT.Cache+S.SOCKET.TCP.INHEAD+1 cmp /K.TCP.WSIZE bne .1 stz SKT.Cache+S.SOCKET.TCP.INHEAD+1 lda ZPTmpPtr1 Dst Ptr=Buffer Base sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .1 .9 sec rts .8 >SBC16 SKT.Cache+S.SOCKET.TCP.INFREE,ZPDataInLen >ADC16 SKT.Cache+S.SOCKET.TCP.INUSED,ZPDataInLen clc lda SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM+3 adc ZPDataInLen sta SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM+3 lda SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM+2 adc ZPDataInLen+1 sta SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM+2 bcc .80 inc SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM+1 bne .80 inc SKT.Cache+S.SOCKET.TCP.INLASTSEQNUM .80 clc rts *-------------------------------------- * From TCP.OUT * Src : hOutMem/OUTTAIL * Dst : ZPDataOutPtr/ZPDataOutLen *-------------------------------------- SKT.GetDataFromSktOut ldy #S.SOCKET.SQ.hOutMem lda (ZPPtrSKT),y >SYSCALL2 GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.Cache+S.SOCKET.TCP.OUTTAILNEXT sta ZPTmpPtr2 Make ZPTmpPtr2=base+nexttail lda ZPTmpPtr1+1 adc SKT.Cache+S.SOCKET.TCP.OUTTAILNEXT+1 sta ZPTmpPtr2+1 lda ZPDataOutLen eor #$FF tax lda ZPDataOutLen+1 eor #$FF pha ldy #0 .1 inx bne .2 pla inc beq .8 pha .2 lda (ZPTmpPtr2) sta (ZPDataOutPtr),y iny bne .3 inc ZPDataOutPtr+1 .3 inc ZPTmpPtr2 bne .4 inc ZPTmpPtr2+1 .4 inc SKT.Cache+S.SOCKET.TCP.OUTTAILNEXT bne .1 inc SKT.Cache+S.SOCKET.TCP.OUTTAILNEXT+1 lda SKT.Cache+S.SOCKET.TCP.OUTTAILNEXT+1 cmp /K.TCP.WSIZE bne .1 stz SKT.Cache+S.SOCKET.TCP.OUTTAILNEXT+1 lda ZPTmpPtr1 Dst Ptr=Buffer Base sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .1 .8 >SBC16 SKT.Cache+S.SOCKET.TCP.OUTTOSEND,ZPDataOutLen clc rts *-------------------------------------- * From TCP.IN * Src : A,X * Dst : hOutMem/OUTTAIL *-------------------------------------- SKT.AckDataToSktOut ldy #S.TCP.ACKNUM+3 Get new ACK number from FrameIn... ldx #3 Substract old ACK from socket sec .1 lda (ZPFrameInPtr),y pha sbc SKT.Cache+S.SOCKET.TCP.OUTSEQNUM,x sta TmpDWord,x pla ....and Set SEQ = new SEQ sta SKT.Cache+S.SOCKET.TCP.OUTSEQNUM,x dey dex bpl .1 lda TmpDWord+3 ldx TmpDWord+2 bne .2 tay beq .8 .2 clc adc SKT.Cache+S.SOCKET.TCP.OUTTAIL sta SKT.Cache+S.SOCKET.TCP.OUTTAIL txa adc SKT.Cache+S.SOCKET.TCP.OUTTAIL+1 and /K.TCP.WSIZE-1 sta SKT.Cache+S.SOCKET.TCP.OUTTAIL+1 lda SKT.Cache+S.SOCKET.TCP.OUTFREE clc adc TmpDWord+3 sta SKT.Cache+S.SOCKET.TCP.OUTFREE lda SKT.Cache+S.SOCKET.TCP.OUTFREE+1 adc TmpDWord+2 sta SKT.Cache+S.SOCKET.TCP.OUTFREE+1 lda SKT.Cache+S.SOCKET.TCP.OUTUSED sec sbc TmpDWord+3 sta SKT.Cache+S.SOCKET.TCP.OUTUSED lda SKT.Cache+S.SOCKET.TCP.OUTUSED+1 sbc TmpDWord+2 sta SKT.Cache+S.SOCKET.TCP.OUTUSED+1 .8 rts *-------------------------------------- SKT.NewTCB ldx #S.SOCKET.TCP.INTAIL .1 stz SKT.Cache,x inx cpx #S.SOCKET.TCP bne .1 >LDYAI K.TCP.WSIZE >STYA SKT.Cache+S.SOCKET.TCP.INFREE >SYSCALL2 getmem bcs .9 txa ldy #S.SOCKET.SQ.hInMem sta (ZPPtrSKT),y >LDYAI K.TCP.WSIZE >STYA SKT.Cache+S.SOCKET.TCP.OUTFREE >SYSCALL2 getmem bcs .9 txa ldy #S.SOCKET.SQ.hOutMem sta (ZPPtrSKT),y ldx #3 .2 lda A2osX.TIMER16,x sta SKT.Cache+S.SOCKET.TCP.OUTNEXTSEQ,x dex bpl .2 * clc .9 rts *-------------------------------------- SKT.GetTCB ldy #S.SOCKET.TCP.INTAIL .1 lda (ZPPtrSKT),y sta SKT.Cache,y iny cpy #S.SOCKET.TCP bne .1 rts *-------------------------------------- SKT.StoreTCB.S ldy #S.SOCKET.TCP.S sta (ZPPtrSKT),y SKT.StoreTCB ldy #S.SOCKET.TCP.INTAIL .1 lda SKT.Cache,y sta (ZPPtrSKT),y iny cpy #S.SOCKET.TCP bne .1 clc rts *-------------------------------------- SKT.SetFrameOutDstIP ldy #S.SOCKET.REM.ADDR ldx #4 .1 lda (ZPPtrSKT),y pha iny dex bne .1 ldy #S.IP.DST+3 ldx #4 .2 pla sta (ZPFrameOutPtr),y dey dex bne .2 rts *-------------------------------------- SKT.SetFrameOutTCPUDPPorts ldy #S.SOCKET.LOC.PORT lda (ZPPtrSKT),y tax iny lda (ZPPtrSKT),y ldy #S.TCPUDP.SRCPORT sta (ZPFrameOutPtr),y iny txa sta (ZPFrameOutPtr),y ldy #S.SOCKET.REM.PORT lda (ZPPtrSKT),y tax iny lda (ZPPtrSKT),y ldy #S.TCPUDP.DSTPORT sta (ZPFrameOutPtr),y iny txa sta (ZPFrameOutPtr),y rts *-------------------------------------- SKT.CopyDataInToOut lda ZPDataInPtr+1 pha lda ZPDataOutPtr+1 pha lda ZPDataInLen eor #$ff tax lda ZPDataInLen+1 eor #$ff pha ldy #0 .1 inx bne .2 pla inc beq .9 pha .2 lda (ZPDataInPtr),y sta (ZPDataOutPtr),y iny bne .1 inc ZPDataInPtr+1 inc ZPDataOutPtr+1 bne .1 .9 pla sta ZPDataOutPtr+1 pla sta ZPDataInPtr+1 rts *-------------------------------------- MAN SAVE USR/SRC/LIB/LIBTCPIP.S.SKT LOAD USR/SRC/LIB/LIBTCPIP.S ASM