(FILECREATED "15-Apr-85 16:42:46" {ERIS}<LISPCORE>LIBRARY>TCPLLICMP.;1 8764
changes to: (VARS TCPLLICMPCOMS)
previous date: " 9-Feb-85 16:13:09" {ERIS}<LISPCORE>LIBRARY>LLICMP.;3)
(* Copyright (c) 1985 by Xerox Corporation. All rights reserved.)
(PRETTYCOMPRINT TCPLLICMPCOMS)
(RPAQQ TCPLLICMPCOMS ((COMS (* * ICMP functions)
(DECLARE: DONTCOPY (EXPORT (RECORDS ICMP ICMPECHO ICMPDESTUN)
(CONSTANTS * ICMPTYPES)
(CONSTANTS * ICMPUNREACHABLES)
(CONSTANTS \ICMPOVLEN)
(MACROS ICMPLENGTH)))
(INITVARS (\ICMP.ECHO.REPLY.QUEUE (NCREATE (QUOTE SYSQUEUE)))
(\ICMP.ECHO.REPLY.EVENT (CREATE.EVENT "ICMP Echo reply"))
(\ICMP.ECHOING))
(GLOBALVARS \ICMP.ECHO.REPLY.QUEUE \ICMP.ECHO.REPLY.EVENT \ICMP.ECHOING)
(FNS PRINTICMP \ICMP.DEST.UNREACHABLE \ICMP.ECHO.TEST
\ICMP.HANDLE.ECHO.REPLY \ICMP.INPUT \ICMP.REPLY.TO.ECHO
\ICMP.SETUPICMP \ICMP.TRANSMIT)
(ADDVARS (IPPRINTMACROS (1 . PRINTICMP))))))
(* * ICMP functions)
(DECLARE: DONTCOPY
(* FOLLOWING DEFINITIONS EXPORTED)
[DECLARE: EVAL@COMPILE
(ACCESSFNS ICMP ((ICMPBASE (\IPDATABASE DATUM)))
(BLOCKRECORD ICMPBASE ((ICMPTYPE BYTE)
(ICMPCODE BYTE)
(ICMPCHECKSUM WORD)
(ICMPDATASTART WORD)))
(ACCESSFNS ICMP ((ICMPCONTENTS (LOCF (fetch (ICMP ICMPDATASTART) of DATUM))))))
(ACCESSFNS ICMPECHO ((ICMPECHOBASE (fetch (ICMP ICMPCONTENTS) of DATUM)))
(BLOCKRECORD ICMPECHOBASE ((ICMPECHOID WORD)
(ICMPECHOSEQNO WORD)
(ICMPECHODATA BYTE))))
(ACCESSFNS ICMPDESTUN ((ICMPECHOBASE (fetch (ICMP ICMPCONTENTS) of DATUM)))
(BLOCKRECORD ICMPECHOBASE ((NIL FIXP)
(ICMPIPHEADER WORD))))
]
(RPAQQ ICMPTYPES ((\ICMP.ECHO.REPLY 0)
(\ICMP.DEST.UNREACHABLE 3)
(\ICMP.SOURCE.QUENCH 4)
(\ICMP.REDIRECT 5)
(\ICMP.ECHO 8)
(\ICMP.TIME.EXCEEDED 11)
(\ICMP.PARAMETER.PROBLEM 12)
(\ICMP.TIMESTAMP 13)
(\ICMP.TIMESTAMP.REPLY 14)
(\ICMP.INFO.REQUEST 15)
(\ICMP.INFO.REPLY 16)))
(DECLARE: EVAL@COMPILE
(RPAQQ \ICMP.ECHO.REPLY 0)
(RPAQQ \ICMP.DEST.UNREACHABLE 3)
(RPAQQ \ICMP.SOURCE.QUENCH 4)
(RPAQQ \ICMP.REDIRECT 5)
(RPAQQ \ICMP.ECHO 8)
(RPAQQ \ICMP.TIME.EXCEEDED 11)
(RPAQQ \ICMP.PARAMETER.PROBLEM 12)
(RPAQQ \ICMP.TIMESTAMP 13)
(RPAQQ \ICMP.TIMESTAMP.REPLY 14)
(RPAQQ \ICMP.INFO.REQUEST 15)
(RPAQQ \ICMP.INFO.REPLY 16)
(CONSTANTS (\ICMP.ECHO.REPLY 0)
(\ICMP.DEST.UNREACHABLE 3)
(\ICMP.SOURCE.QUENCH 4)
(\ICMP.REDIRECT 5)
(\ICMP.ECHO 8)
(\ICMP.TIME.EXCEEDED 11)
(\ICMP.PARAMETER.PROBLEM 12)
(\ICMP.TIMESTAMP 13)
(\ICMP.TIMESTAMP.REPLY 14)
(\ICMP.INFO.REQUEST 15)
(\ICMP.INFO.REPLY 16))
)
(RPAQQ ICMPUNREACHABLES ((\ICMP.NET.UNREACHABLE 0)
(\ICMP.HOST.UNREACHABLE 1)
(\ICMP.PROTOCOL.UNREACHABLE 2)
(\ICMP.PORT.UNREACHABLE 3)
(\ICMP.CANT.FRAGMENT 4)
(\ICMP.SOURCE.ROUTE 5)))
(DECLARE: EVAL@COMPILE
(RPAQQ \ICMP.NET.UNREACHABLE 0)
(RPAQQ \ICMP.HOST.UNREACHABLE 1)
(RPAQQ \ICMP.PROTOCOL.UNREACHABLE 2)
(RPAQQ \ICMP.PORT.UNREACHABLE 3)
(RPAQQ \ICMP.CANT.FRAGMENT 4)
(RPAQQ \ICMP.SOURCE.ROUTE 5)
(CONSTANTS (\ICMP.NET.UNREACHABLE 0)
(\ICMP.HOST.UNREACHABLE 1)
(\ICMP.PROTOCOL.UNREACHABLE 2)
(\ICMP.PORT.UNREACHABLE 3)
(\ICMP.CANT.FRAGMENT 4)
(\ICMP.SOURCE.ROUTE 5))
)
(DECLARE: EVAL@COMPILE
(RPAQQ \ICMPOVLEN 4)
(CONSTANTS \ICMPOVLEN)
)
(DECLARE: EVAL@COMPILE
(PUTPROPS ICMPLENGTH MACRO (LAMBDA (ICMP)
(IDIFFERENCE (fetch (IP IPTOTALLENGTH) of ICMP)
(LLSH (fetch (IP IPHEADERLENGTH) of ICMP)
2))))
)
(* END EXPORTED DEFINITIONS)
)
(RPAQ? \ICMP.ECHO.REPLY.QUEUE (NCREATE (QUOTE SYSQUEUE)))
(RPAQ? \ICMP.ECHO.REPLY.EVENT (CREATE.EVENT "ICMP Echo reply"))
(RPAQ? \ICMP.ECHOING )
(DECLARE: DOEVAL@COMPILE DONTCOPY
(GLOBALVARS \ICMP.ECHO.REPLY.QUEUE \ICMP.ECHO.REPLY.EVENT \ICMP.ECHOING)
)
(DEFINEQ
(PRINTICMP
[LAMBDA (ICMP FILE) (* ejs: "28-Dec-84 09:56")
(PRINTCONSTANT (fetch (ICMP ICMPTYPE) of ICMP)
ICMPTYPES FILE "ICMP: ")
(TERPRI FILE])
(\ICMP.DEST.UNREACHABLE
(LAMBDA (PACKET CODE) (* ejs: "27-Jan-85 15:48")
(* * Returns an ICMP unreachable packet of proper code to sender)
(PROG ((ICMP (\ALLOCATE.ETHERPACKET))
NWORDS)
(\IP.SETUPIP ICMP (fetch (IP IPSOURCEADDRESS) of PACKET)
0
(\IP.FIND.PROTOCOL \ICMP.PROTOCOL))
(\ICMP.SETUPICMP ICMP \ICMP.DEST.UNREACHABLE CODE)
(SETQ NWORDS (IPLUS 4 (LLSH (fetch (IP IPHEADERLENGTH) of PACKET)
2)))
(\BLT (LOCF (fetch (ICMPDESTUN ICMPIPHEADER) of ICMP))
(fetch (IP IPBASE) of PACKET)
NWORDS)
(add (fetch (IP IPTOTALLENGTH) of ICMP)
(LLSH NWORDS 1))
(\ICMP.TRANSMIT ICMP)
(\RELEASE.ETHERPACKET PACKET))))
(\ICMP.ECHO.TEST
(LAMBDA (IPADDRESS ECHOSTREAM) (* ejs: " 3-Jan-85 17:09")
(* * An ICMP echo tester)
(RESETVAR \ICMP.ECHOING T (PROG (ICMP (IPSOCKET (\IP.FIND.PROTOCOL \ICMP.PROTOCOL)))
(for SEQUENCE from 0 do ((SETQ ICMP (\ALLOCATE.ETHERPACKET))
(\IP.SETUPIP ICMP IPADDRESS 0 IPSOCKET)
(\ICMP.SETUPICMP ICMP \ICMP.ECHO 0)
(replace (ICMPECHO ICMPECHOID)
of ICMP with 0)
(replace (ICMPECHO ICMPECHOSEQNO)
of ICMP with SEQUENCE)
(add (fetch (IP IPTOTALLENGTH)
of ICMP)
4)
(printout ECHOSTREAM "!")
(\ICMP.TRANSMIT ICMP)
(AWAIT.EVENT \ICMP.ECHO.REPLY.EVENT
\ETHERTIMEOUT)
(COND
((SETQ ICMP (\DEQUEUE
\ICMP.ECHO.REPLY.QUEUE))
(COND
((IGREATERP (fetch (ICMPECHO
ICMPECHOSEQNO)
of ICMP)
SEQUENCE)
(printout T
"ICMP echo out of sequence"
T)
(PRINTPACKET ICMP (QUOTE GET)
ECHOSTREAM)
(RETURN ICMP))
(T (printout ECHOSTREAM "+")
(\RELEASE.ETHERPACKET ICMP))))
(T (printout ECHOSTREAM ".")))))))))
(\ICMP.HANDLE.ECHO.REPLY
[LAMBDA (ICMP) (* ejs: "28-Dec-84 09:02")
(COND
(\ICMP.ECHOING (\ENQUEUE \ICMP.ECHO.REPLY.QUEUE ICMP)
(NOTIFY.EVENT \ICMP.ECHO.REPLY.EVENT))
(T (\RELEASE.ETHERPACKET ICMP])
(\ICMP.INPUT
(LAMBDA (ICMP) (* ejs: "31-Dec-84 13:58")
(* * ICMP packet received)
(COND
((\IP.CHECKSUM.OK (\IPCHECKSUM ICMP (fetch (ICMP ICMPBASE) of ICMP)
(\IPDATALENGTH ICMP)))
(SELECTC (fetch (ICMP ICMPTYPE) of ICMP)
(\ICMP.ECHO.REPLY (\ICMP.HANDLE.ECHO.REPLY ICMP))
(\ICMP.ECHO (\ICMP.REPLY.TO.ECHO ICMP))
(\RELEASE.ETHERPACKET ICMP)))
(T (AND IPTRACEFLG (PRINTPACKET ICMP (QUOTE ICMPGET)
IPTRACEFILE "[dropping packet--bad ICMP checksum]"))))))
(\ICMP.REPLY.TO.ECHO
[LAMBDA (ICMP) (* ejs: "27-Dec-84 19:44")
(* * Reply to an echo request)
(swap (fetch (IP IPSOURCEADDRESS) of ICMP)
(fetch (IP IPDESTINATIONADDRESS) of ICMP))
(replace (ICMP ICMPTYPE) of ICMP with \ICMP.ECHO.REPLY)
(replace EPREQUEUE of ICMP with (QUOTE FREE))
(\ICMP.TRANSMIT ICMP])
(\ICMP.SETUPICMP
[LAMBDA (ICMP TYPE CODE) (* ejs: "27-Dec-84 19:00")
(replace (ICMP ICMPTYPE) of ICMP with TYPE)
(replace (ICMP ICMPCODE) of ICMP with CODE)
(add (fetch (IP IPTOTALLENGTH) of ICMP)
\ICMPOVLEN])
(\ICMP.TRANSMIT
(LAMBDA (ICMP) (* ejs: "31-Dec-84 14:27")
(* * Checksum and transmit an ICMP packet)
(\IP.SET.CHECKSUM ICMP (fetch (ICMP ICMPBASE) of ICMP)
(\IPDATALENGTH ICMP)
(LOCF (fetch (ICMP ICMPCHECKSUM) of ICMP)))
(\IP.TRANSMIT ICMP)))
)
(ADDTOVAR IPPRINTMACROS (1 . PRINTICMP))
(PUTPROPS TCPLLICMP COPYRIGHT ("Xerox Corporation" 1985))
(DECLARE: DONTCOPY
(FILEMAP (NIL (4065 8638 (PRINTICMP 4075 . 4297) (\ICMP.DEST.UNREACHABLE 4299 . 5179) (\ICMP.ECHO.TEST
5181 . 6645) (\ICMP.HANDLE.ECHO.REPLY 6647 . 6937) (\ICMP.INPUT 6939 . 7528) (\ICMP.REPLY.TO.ECHO
7530 . 7976) (\ICMP.SETUPICMP 7978 . 8281) (\ICMP.TRANSMIT 8283 . 8636)))))
STOP