411 REFERENCE · Wikibooks
Oberon/ETH Oberon/2.3.7/PPPTest.Mod
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
(* ETH Oberon, Copyright 1990-2003 Computer Systems Institute, ETH Zurich, CH-8092 Zurich.
Refer to the license.txt file provided with this distribution. *)
MODULE PPPTest; (** non-portable *) (* pjm *)
(* $VCS 4, Edgar@EdgarSchwarz.de, 06.06.00 22:03:24 $
$Log$
$ 4, Edgar@EdgarSchwarz.de, 06.06.00 22:03:24
better decoding of David Denny
$ 3, Edgar@EdgarSchwarz.de, 25 Apr :0, 11:19:10
decoding stuff added, ShowLog opens PPPDebug.Log
$ 2, Edgar.Schwarz@z.zgs.de, 6 Sep 99, 22:5:49
ShowLog and ShowHex removed
$ 1, Edgar.Schwarz@z.zgs.de, 28 Feb 99, 21:19:47
first versioned version, with configurable logging
*)
(* Test procedures for PPP *)
IMPORT SYSTEM, PPPDebug, PPPHDLC, PPPFSM, Texts, Oberon, Fonts, Out;
CONST
MaxSize = 10000H;
(* codes not exported by PPPFSM *)
TermReq = 5; (* termination request *)
TermAck = 6; (* termination ack *)
CodeRej = 7; (* code reject *)
ProtRej = 8; (* protocol reject *)
EchoReq = 9;
EchoReply = 10;
DiscardReq = 11;
(* LCP option types *)
MRU = 1;
AsyncControl = 2;
Authentication = 3;
Quality = 4;
Magic = 5;
RESERVED = 6;
ProtComp = 7;
AddrCtrlComp = 8;
(* IPCP option types *)
IpAddrs = 1;
IpComp = 2;
IpAddr = 3;
(* Authentification codes *)
AuthReq = 1;
AuthAck = 2;
AuthNak = 3;
VAR
w: Texts.Writer;
(* for hex numbers less than MAX(LONGINT) *)
PROCEDURE HexToInt(hexStr: ARRAY OF CHAR): LONGINT;
VAR pos, int: LONGINT;
BEGIN
pos := 0; int := 0;
WHILE hexStr[pos] # 0X DO
CASE hexStr[pos] OF
"0".."9": int := 16 * int + ORD(hexStr[pos]) - ORD("0");
| "a".."f": int := 16 * int + ORD(hexStr[pos]) - ORD("a") + 10;
| "A".."F": int := 16 * int + ORD(hexStr[pos]) - ORD("A") + 10;
END;
INC(pos);
END;
RETURN int;
END HexToInt;
PROCEDURE ReadHexByteString(VAR r: Texts.Reader; VAR hexStr: ARRAY OF CHAR);
VAR hexPos: LONGINT; ch: CHAR;
BEGIN
hexPos := 0;
LOOP
Texts.Read(r, ch);
CASE ch OF
"0".."9", "a".."f", "A".."F":
hexStr[hexPos] := ch; INC(hexPos);
IF hexPos = 2 THEN
hexStr[hexPos] := 0X; RETURN;
END;
ELSE
END;
END;
END ReadHexByteString;
PROCEDURE ReadHexByte(VAR r: Texts.Reader): LONGINT;
VAR hexPos: LONGINT;
hexStr: ARRAY 3 OF CHAR; ch: CHAR;
BEGIN
hexPos := 0;
LOOP
Texts.Read(r, ch);
CASE ch OF
"0".."9", "a".."f", "A".."F":
hexStr[hexPos] := ch; INC(hexPos);
IF hexPos = 2 THEN
hexStr[hexPos] := 0X; RETURN HexToInt(hexStr);
hexPos := 0;
END;
ELSE
END;
END;
END ReadHexByte;
PROCEDURE WriteHex(x, width: LONGINT);
VAR
buf: ARRAY 9 OF CHAR;
i, j: LONGINT;
BEGIN
buf[0] := " "; buf[1] := 0X;
IF width >= 0 THEN j := 8 ELSE j := 2; width := -width END;
FOR i := j+1 TO width DO Texts.WriteString(w, buf) END;
FOR i := j-1 TO 0 BY -1 DO
buf[i] := CHR(x MOD 10H + 48);
IF buf[i] > "9" THEN
buf[i] := CHR(ORD(buf[i]) - 48 + 65 - 10)
END;
x := x DIV 10H
END;
buf[j] := 0X;
Texts.WriteString(w, buf)
END WriteHex;
PROCEDURE LCPConfOpt(VAR r: Texts.Reader; VAR read: LONGINT);
VAR type, len, i: LONGINT; hexStr: ARRAY 3 OF CHAR;
BEGIN
type := ReadHexByte(r); INC(read);
CASE type OF
MRU:
Out.String(" MRU"); len := ReadHexByte(r);
Out.Int(256*ReadHexByte(r) + ReadHexByte(r), 6);
Out.Ln(); INC(read, 3);
| AsyncControl:
Out.String(" AsyncControl "); len := ReadHexByte(r);
FOR len := 0 TO 3 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 5);
| Authentication: Out.String(" Authentication "); len := ReadHexByte(r);
FOR i := 1 TO len-2 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 1+len-2);
| Quality: Out.String("Quality");
| Magic: Out.String(" Magic "); len := ReadHexByte(r);
FOR i := 0 TO 3 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 5);
| RESERVED: Out.String("RESERVED");
| ProtComp:
Out.String(" Protocol-Field-Compression"); len := ReadHexByte(r);
Out.Ln(); INC(read, 1);
| AddrCtrlComp:
Out. String(" Address-and-Control-Field-Compression"); len := ReadHexByte(r);
Out.Ln(); INC(read, 1);
ELSE
Out.String(" unknown option"); Out.Int(type, 4); len := ReadHexByte(r);
Out.Int(len, 4); Out.Char(" ");
FOR i := 1 TO len - 2 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 1+len-2);
END;
END LCPConfOpt;
PROCEDURE LCPConfOptions(VAR r: Texts.Reader);
VAR len, read: LONGINT;
BEGIN
Out.Int(ReadHexByte(r), 4); (* identifier (message number) *)
len := 256*ReadHexByte(r) + ReadHexByte(r); Out.Int(len, 4); Out.Ln();
read := 4;
WHILE read < len DO LCPConfOpt(r, read); END;
END LCPConfOptions;
(* System.Free PPPTest ~ Builder.Compile * PPPTest.LCPDecode ^ *)
PROCEDURE LCPDecode*;
VAR
text: Texts.Text; r: Texts.Reader;
hexPos, beg, end, time: LONGINT;
hexStr: ARRAY 10 OF CHAR; ch: CHAR;
BEGIN
Oberon.GetSelection(text, beg, end, time);
Texts.OpenReader(r, text, beg);
CASE ReadHexByte(r) OF
PPPFSM.ConfReq: Out.String("ConfReq"); LCPConfOptions(r);
| PPPFSM.ConfAck: Out.String("ConfAck"); LCPConfOptions(r);
| PPPFSM.ConfNak: Out.String("ConfNak");
| PPPFSM.ConfRej: Out.String("ConfRej"); LCPConfOptions(r);
| TermReq: Out.String("TermReq");
| TermAck: Out.String("TermAck");
| CodeRej: Out.String("CodeRej");
| ProtRej: Out.String("ProtocolRej");
| EchoReq: Out.String("EchoReq");
| EchoReply: Out.String("EchoReply");
ELSE Out.String("*** illegal code ***");
END;
END LCPDecode;
PROCEDURE IPCPConfOpt(VAR r: Texts.Reader; VAR read: LONGINT);
VAR type, len, i: LONGINT; hexStr: ARRAY 3 OF CHAR;
BEGIN
type := ReadHexByte(r); INC(read);
CASE type OF
IpAddrs:
Out.String(" IP-Addresses"); len := ReadHexByte(r);
Out.Int(256*ReadHexByte(r) + ReadHexByte(r), 6);
Out.Ln(); INC(read, 3);
| IpComp:
Out.String(" IP-Compression Protocol "); len := ReadHexByte(r);
FOR len := 1 TO len-2 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 1+len-2);
| IpAddr: Out.String(" IP-Address "); len := ReadHexByte(r);
FOR i := 1 TO len-2 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 1+len-2);
ELSE
Out.String(" unknown option"); Out.Int(type, 4); len := ReadHexByte(r);
Out.Int(len, 4); Out.Char(" ");
FOR i := 1 TO len - 2 DO
ReadHexByteString(r, hexStr); Out.String(hexStr);
END;
Out.Ln(); INC(read, 1+len-2);
END;
END IPCPConfOpt;
PROCEDURE IPCPConfOptions(VAR r: Texts.Reader);
VAR len, read: LONGINT;
BEGIN
Out.Int(ReadHexByte(r), 4); (* identifier (message number) *)
len := 256*ReadHexByte(r) + ReadHexByte(r); Out.Int(len, 4); Out.Ln();
read := 4;
WHILE read < len DO IPCPConfOpt(r, read); END;
END IPCPConfOptions;
(* System.Free PPPTest ~ Builder.Compile * PPPTest.IPCPDecode ^ *)
PROCEDURE IPCPDecode*;
VAR
text: Texts.Text; r: Texts.Reader;
hexPos, beg, end, time: LONGINT;
hexStr: ARRAY 10 OF CHAR; ch: CHAR;
BEGIN
Oberon.GetSelection(text, beg, end, time);
Texts.OpenReader(r, text, beg);
CASE ReadHexByte(r) OF
PPPFSM.ConfReq: Out.String("ConfReq"); IPCPConfOptions(r);
| PPPFSM.ConfAck: Out.String("ConfAck"); IPCPConfOptions(r);
| PPPFSM.ConfNak: Out.String("ConfNak"); IPCPConfOptions(r);
| PPPFSM.ConfRej: Out.String("ConfRej"); IPCPConfOptions(r);
| TermReq: Out.String("TermReq");
| TermAck: Out.String("TermAck");
| CodeRej: Out.String("CodeRej");
ELSE Out.String("*** illegal code ***");
END;
END IPCPDecode;
(* System.Free PPPTest ~ Builder.Compile * PPPTest.PAPDecode ^ *)
PROCEDURE PAPDecode*;
VAR
text: Texts.Text; r: Texts.Reader;
hexPos, beg, end, time, read, len: LONGINT;
hexStr: ARRAY 10 OF CHAR; ch: CHAR;
BEGIN
Oberon.GetSelection(text, beg, end, time);
Texts.OpenReader(r, text, beg);
CASE ReadHexByte(r) OF
AuthReq: Out.String("AuthReq");
Out.Int(ReadHexByte(r), 4); (* identifier (message number) *)
len := 256*ReadHexByte(r) + ReadHexByte(r); Out.Int(len, 4); Out.Ln();
read := 4;
len := ReadHexByte(r);
Out.String("Peer-ID"); Out.Int(len, 4); Out.Char(" ");
FOR time := 1 TO len DO Out.Char(CHR(ReadHexByte(r))); END; Out.Ln();
INC(read, 1+len);
len := ReadHexByte(r);
Out.String("Passwd"); Out.Int(len, 4); Out.Char(" ");
FOR time := 1 TO len DO Out.Char(CHR(ReadHexByte(r))); END; Out.Ln();
INC(read, 1+len);
| AuthAck: Out.String("AuthAck");
Out.Int(ReadHexByte(r), 4); (* identifier (message number) *)
len := 256*ReadHexByte(r) + ReadHexByte(r); Out.Int(len, 4); Out.Ln();
read := 4;
len := ReadHexByte(r);
Out.String("Msg"); Out.Int(len, 4); Out.Char(" ");
FOR time := 1 TO len DO Out.Char(CHR(ReadHexByte(r))); END; Out.Ln();
INC(read, 1+len);
| AuthNak: Out.String("AuthNak");
Out.Int(ReadHexByte(r), 4); (* identifier (message number) *)
len := 256*ReadHexByte(r) + ReadHexByte(r); Out.Int(len, 4); Out.Ln();
read := 4;
(* ohne Msg-Length (daviddenny/elena99) *)
Out.String("Msg ");
FOR time := 1 TO len-4 DO Out.Char(CHR(ReadHexByte(r))); END; Out.Ln();
read := len;
(* laut RFC 1334
len := ReadHexByte(r);
Out.String("Msg"); Out.Int(len, 4); Out.Char(" ");
FOR time := 1 TO len DO Out.Char(CHR(ReadHexByte(r))); END; Out.Ln();
INC(read, 1+len);
*)
ELSE Out.String("*** illegal code ***");
END;
END PAPDecode;
(* not sure whether still necessary because log is now going to a Text
PROCEDURE ShowLogHex*;
CONST W = 16;
VAR t: Texts.Text; i, j, k, adr, size: LONGINT; x: SHORTINT;
BEGIN
NEW(t); Texts.Open(t, "");
size := PPPDebug.LogLen;
i := 0; adr := SYSTEM.ADR(PPPDebug.Log[0]);
WHILE (i < size) DO
WriteHex(adr+i, 8); Texts.WriteString(w, "H: ");
(* Do Hex dump. *)
j := i;
WHILE (j < i+W) & (j < size) DO
SYSTEM.GET(adr+j, x);
WriteHex(x, -3);
INC(j)
END;
(* Spaces between Hex dump and ASCII dump. *)
FOR k := j TO i+W-1 DO Texts.WriteString(w, " ") END;
Texts.WriteString(w, " ");
(* Do ASCII dump. *)
j := i;
WHILE (j < i+W) & (j < size) DO
SYSTEM.GET(adr+j, x);
IF (x > 01FH) & (x < 07FH) THEN Texts.Write(w, CHR(x))
ELSE Texts.Write(w, ".") END;
INC(j)
END;
Texts.WriteLn(w);
INC(i, W)
END;
Texts.Append(t, w.buf);
Oberon.OpenText("", t, 400, 200)
END ShowLogHex;
***)
PROCEDURE ShowLog*;
BEGIN
Oberon.OpenText("PPP.Log", PPPDebug.Log, 400, 200)
END ShowLog;
(** managing the flag for logging PPP traffic for debugging. Default is off *)
PROCEDURE LogState*;
BEGIN
IF PPPHDLC.debug THEN
Out.String("PPP logging is on"); Out.Ln;
ELSE
Out.String("PPP logging is off"); Out.Ln;
END;
END LogState;
PROCEDURE LogOn*;
BEGIN
PPPHDLC.debug := TRUE;
Out.String("PPP logging turned on"); Out.Ln;
END LogOn;
PROCEDURE LogOff*;
BEGIN
PPPHDLC.debug := FALSE;
Out.String("PPP logging turned off"); Out.Ln;
END LogOff;
BEGIN
Texts.OpenWriter(w); Texts.SetFont(w, Fonts.This("Courier10.Scn.Fnt"))
END PPPTest.
(*
PPPTest.ShowLog
PPPTest.ShowLogHex
*)
PPPTest.LogState
PPPTest.LogOn
PPPTest.LogOff