1130b656e5
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
138 lines
3.9 KiB
C
138 lines
3.9 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.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
* 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_ */
|