freebsd-skq/usr.sbin/ppp/fsm.h
brian 94d661ac8c Overhaul ppp:
o Use syslog
  o Remove references to stdout/stderr (incl perror())
  o Introduce VarTerm - the interactive terminal or zero
  o Allow "set timeout" to affect current session
  o Change "set debug" to "set log"
  o Allow "set log [+|-]flag"
  o Make MSEXT and PASSWDAUTH stuff the default
  o Move all #ifdef DEBUG stuff into the code - this
    shouldn't be too much overhead.  It's now controlled
    with "set log +debug"
  o Add "set log command, debug, tun, warn, error, alert"
  o Remove cdefs.h, and assume an ansi compiler.
  o Improve all diagnostic output
  o Don't trap SIGSEGV
  o SIGHUP now terminates again (log files are controlled
    by syslog)
  o Call CloseModem() when changing devices
  o Fix parsing of third arg of "delete"

I think this fixes the "magic is same" problems that some
people have been experiencing.
The man page is being rewritten.  It'll follow soon.
1997-06-09 03:27:43 +00:00

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3.8 KiB
C

/*
* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
*
* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the Internet Initiative Japan. The name of the
* IIJ may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: fsm.h,v 1.7 1997/02/22 16:10:14 peter Exp $
*
* TODO:
*/
#ifndef _FSM_H_
#define _FSM_H_
#include "defs.h"
#include <netinet/in.h>
#include "timeout.h"
/*
* State of machine
*/
#define ST_INITIAL 0
#define ST_STARTING 1
#define ST_CLOSED 2
#define ST_STOPPED 3
#define ST_CLOSING 4
#define ST_STOPPING 5
#define ST_REQSENT 6
#define ST_ACKRCVD 7
#define ST_ACKSENT 8
#define ST_OPENED 9
#define ST_MAX 10
#define ST_UNDEF -1
#define MODE_REQ 0
#define MODE_NAK 1
#define MODE_REJ 2
#define MODE_NOP 3
#define OPEN_ACTIVE 0
#define OPEN_PASSIVE 1
struct fsm {
char *name; /* Name of protocol */
u_short proto; /* Protocol number */
u_short max_code;
int open_mode;
int state; /* State of the machine */
int reqid; /* Next request id */
int restart; /* Restart counter value */
int maxconfig;
int reqcode; /* Request code sent */
struct pppTimer FsmTimer; /* Restart Timer */
void (*LayerUp)(struct fsm *);
void (*LayerDown)(struct fsm *);
void (*LayerStart)(struct fsm *);
void (*LayerFinish)(struct fsm *);
void (*InitRestartCounter)(struct fsm *);
void (*SendConfigReq)(struct fsm *);
void (*SendTerminateReq)(struct fsm *);
void (*SendTerminateAck)(struct fsm *);
void (*DecodeConfig)(u_char *, int, int);
};
struct fsmheader {
u_char code; /* Request code */
u_char id; /* Identification */
u_short length; /* Length of packet */
};
#define CODE_CONFIGREQ 1
#define CODE_CONFIGACK 2
#define CODE_CONFIGNAK 3
#define CODE_CONFIGREJ 4
#define CODE_TERMREQ 5
#define CODE_TERMACK 6
#define CODE_CODEREJ 7
#define CODE_PROTOREJ 8
#define CODE_ECHOREQ 9 /* Used in LCP */
#define CODE_ECHOREP 10 /* Used in LCP */
#define CODE_DISCREQ 11
#define CODE_IDENT 12 /* Used in LCP Extension */
#define CODE_TIMEREM 13 /* Used in LCP Extension */
#define CODE_RESETREQ 14 /* Used in CCP */
#define CODE_RESETACK 15 /* Used in CCP */
struct fsmcodedesc {
void (*action)(struct fsm *, struct fsmheader *, struct mbuf *);
char *name;
};
struct fsmconfig {
u_char type;
u_char length;
};
u_char AckBuff[200];
u_char NakBuff[200];
u_char RejBuff[100];
u_char ReqBuff[200];
u_char *ackp, *nakp, *rejp;
extern char const *StateNames[];
extern void FsmInit(struct fsm *);
extern void NewState(struct fsm *, int);
extern void FsmOutput(struct fsm *, u_int, u_int, u_char *, int);
extern void FsmOpen(struct fsm *);
extern void FsmUp(struct fsm *);
extern void FsmDown(struct fsm *);
extern void FsmInput(struct fsm *, struct mbuf *);
extern void FsmRecvConfigReq(struct fsm *, struct fsmheader *, struct mbuf *);
extern void FsmRecvConfigAck(struct fsm *, struct fsmheader *, struct mbuf *);
extern void FsmRecvConfigNak(struct fsm *, struct fsmheader *, struct mbuf *);
extern void FsmRecvTermReq(struct fsm *, struct fsmheader *, struct mbuf *);
extern void FsmRecvTermAck(struct fsm *, struct fsmheader *, struct mbuf *);
extern void FsmClose(struct fsm *fp);
extern struct fsm LcpFsm, IpcpFsm, CcpFsm;
#endif /* _FSM_H_ */