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/*
* 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 1.4 1995/02/27 03:17:58 amurai Exp $
*
* TODO:
*/
#ifndef _FSM_H_
#define _FSM_H_
#include "defs.h"
#include <netinet/in.h>
#include "timeout.h"
#include "cdefs.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) __P((struct fsm *));
void (*LayerDown) __P((struct fsm *));
void (*LayerStart) __P((struct fsm *));
void (*LayerFinish) __P((struct fsm *));
void (*InitRestartCounter) __P((struct fsm *));
void (*SendConfigReq) __P((struct fsm *));
void (*SendTerminateReq) __P((struct fsm *));
void (*SendTerminateAck) __P((struct fsm *));
void (*DecodeConfig) __P((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) __P((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 __P((struct fsm *));
extern void NewState __P((struct fsm *, int));
extern void FsmOutput __P((struct fsm *, u_int, u_int, u_char *, int));
extern void FsmOpen __P((struct fsm *));
extern void FsmUp __P((struct fsm *));
extern void FsmDown __P((struct fsm *));
extern void FsmInput __P((struct fsm *, struct mbuf *));
extern void FsmRecvConfigReq __P((struct fsm *, struct fsmheader *, struct mbuf *));
extern void FsmRecvConfigAck __P((struct fsm *, struct fsmheader *, struct mbuf *));
extern void FsmRecvConfigNak __P((struct fsm *, struct fsmheader *, struct mbuf *));
extern void FsmRecvTermReq __P((struct fsm *, struct fsmheader *, struct mbuf *));
extern void FsmRecvTermAck __P((struct fsm *, struct fsmheader *, struct mbuf *));
extern void FsmClose __P((struct fsm *fp));
extern struct fsm LcpFsm, IpcpFsm, CcpFsm;
#endif /* _FSM_H_ */
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