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fsm.h (37160) fsm.h (44305)
1/*
2 * Written by Toshiharu OHNO (tony-o@iij.ad.jp)
3 *
4 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
5 *
6 * Redistribution and use in source and binary forms are permitted
7 * provided that the above copyright notice and this paragraph are
8 * duplicated in all such forms and that any documentation,
9 * advertising materials, and other materials related to such
10 * distribution and use acknowledge that the software was developed
11 * by the Internet Initiative Japan. The name of the
12 * IIJ may not be used to endorse or promote products derived
13 * from this software without specific prior written permission.
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 *
1/*
2 * Written by Toshiharu OHNO (tony-o@iij.ad.jp)
3 *
4 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
5 *
6 * Redistribution and use in source and binary forms are permitted
7 * provided that the above copyright notice and this paragraph are
8 * duplicated in all such forms and that any documentation,
9 * advertising materials, and other materials related to such
10 * distribution and use acknowledge that the software was developed
11 * by the Internet Initiative Japan. The name of the
12 * IIJ may not be used to endorse or promote products derived
13 * from this software without specific prior written permission.
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 *
18 * $Id: fsm.h,v 1.18 1998/06/20 00:19:38 brian Exp $
18 * $Id: fsm.h,v 1.19 1998/06/25 22:33:24 brian Exp $
19 *
20 * TODO:
21 */
22
23/*
24 * State of machine
25 */
26#define ST_INITIAL 0

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40#define MODE_REQ 0
41#define MODE_NAK 1
42#define MODE_REJ 2
43#define MODE_NOP 3
44#define MODE_ACK 4 /* pseudo mode for ccp negotiations */
45
46#define OPEN_PASSIVE -1
47
19 *
20 * TODO:
21 */
22
23/*
24 * State of machine
25 */
26#define ST_INITIAL 0

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40#define MODE_REQ 0
41#define MODE_NAK 1
42#define MODE_REJ 2
43#define MODE_NOP 3
44#define MODE_ACK 4 /* pseudo mode for ccp negotiations */
45
46#define OPEN_PASSIVE -1
47
48#define FSM_REQ_TIMER 1
49#define FSM_TRM_TIMER 2
50
48struct fsm;
49
51struct fsm;
52
53struct fsm_retry {
54 u_int timeout; /* FSM retry frequency */
55 u_int maxreq; /* Max Config REQ retries */
56 u_int maxtrm; /* Max Term REQ retries */
57};
58
50struct fsm_decode {
51 u_char ack[100], *ackend;
52 u_char nak[100], *nakend;
53 u_char rej[100], *rejend;
54};
55
56struct fsm_callbacks {
57 int (*LayerUp) (struct fsm *); /* Layer is now up (tlu) */
58 void (*LayerDown) (struct fsm *); /* About to come down (tld) */
59 void (*LayerStart) (struct fsm *); /* Layer about to start up (tls) */
60 void (*LayerFinish) (struct fsm *); /* Layer now down (tlf) */
59struct fsm_decode {
60 u_char ack[100], *ackend;
61 u_char nak[100], *nakend;
62 u_char rej[100], *rejend;
63};
64
65struct fsm_callbacks {
66 int (*LayerUp) (struct fsm *); /* Layer is now up (tlu) */
67 void (*LayerDown) (struct fsm *); /* About to come down (tld) */
68 void (*LayerStart) (struct fsm *); /* Layer about to start up (tls) */
69 void (*LayerFinish) (struct fsm *); /* Layer now down (tlf) */
61 void (*InitRestartCounter) (struct fsm *); /* Set fsm timer load */
70 void (*InitRestartCounter) (struct fsm *, int); /* Set fsm timer load */
62 void (*SendConfigReq) (struct fsm *); /* Send REQ please */
63 void (*SentTerminateReq) (struct fsm *); /* Term REQ just sent */
64 void (*SendTerminateAck) (struct fsm *, u_char); /* Send Term ACK please */
65 void (*DecodeConfig) (struct fsm *, u_char *, int, int, struct fsm_decode *);
66 /* Deal with incoming data */
67 void (*RecvResetReq) (struct fsm *fp); /* Reset output */
68 void (*RecvResetAck) (struct fsm *fp, u_char); /* Reset input */
69};

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83 const char *name; /* Name of protocol */
84 u_short proto; /* Protocol number */
85 u_short min_code;
86 u_short max_code;
87 int open_mode; /* Delay before config REQ (-1 forever) */
88 int state; /* State of the machine */
89 u_char reqid; /* Next request id */
90 int restart; /* Restart counter value */
71 void (*SendConfigReq) (struct fsm *); /* Send REQ please */
72 void (*SentTerminateReq) (struct fsm *); /* Term REQ just sent */
73 void (*SendTerminateAck) (struct fsm *, u_char); /* Send Term ACK please */
74 void (*DecodeConfig) (struct fsm *, u_char *, int, int, struct fsm_decode *);
75 /* Deal with incoming data */
76 void (*RecvResetReq) (struct fsm *fp); /* Reset output */
77 void (*RecvResetAck) (struct fsm *fp, u_char); /* Reset input */
78};

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92 const char *name; /* Name of protocol */
93 u_short proto; /* Protocol number */
94 u_short min_code;
95 u_short max_code;
96 int open_mode; /* Delay before config REQ (-1 forever) */
97 int state; /* State of the machine */
98 u_char reqid; /* Next request id */
99 int restart; /* Restart counter value */
91 int maxconfig; /* Max config REQ before a close() */
92
100
101 struct {
102 int reqs; /* Max config REQs before a close() */
103 int naks; /* Max config NAKs before a close() */
104 int rejs; /* Max config REJs before a close() */
105 } more;
106
93 struct pppTimer FsmTimer; /* Restart Timer */
94 struct pppTimer OpenTimer; /* Delay before opening */
95
96 /*
97 * This timer times the ST_STOPPED state out after the given value
98 * (specified via "set stopped ..."). Although this isn't specified in the
99 * rfc, the rfc *does* say that "the application may use higher level
100 * timers to avoid deadlock". The StoppedTimer takes effect when the other

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138#define CODE_RESETACK 15 /* Used in CCP */
139
140/* Minimum config req size. This struct is *only* used for it's size */
141struct fsmconfig {
142 u_char type;
143 u_char length;
144};
145
107 struct pppTimer FsmTimer; /* Restart Timer */
108 struct pppTimer OpenTimer; /* Delay before opening */
109
110 /*
111 * This timer times the ST_STOPPED state out after the given value
112 * (specified via "set stopped ..."). Although this isn't specified in the
113 * rfc, the rfc *does* say that "the application may use higher level
114 * timers to avoid deadlock". The StoppedTimer takes effect when the other

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152#define CODE_RESETACK 15 /* Used in CCP */
153
154/* Minimum config req size. This struct is *only* used for it's size */
155struct fsmconfig {
156 u_char type;
157 u_char length;
158};
159
146extern void fsm_Init(struct fsm *, const char *, u_short, int, int, int, int,
160extern void fsm_Init(struct fsm *, const char *, u_short, int, int, int,
147 struct bundle *, struct link *, const struct fsm_parent *,
148 struct fsm_callbacks *, const char *[3]);
149extern void fsm_Output(struct fsm *, u_int, u_int, u_char *, int);
150extern void fsm_Open(struct fsm *);
151extern void fsm_Up(struct fsm *);
152extern void fsm_Down(struct fsm *);
153extern void fsm_Input(struct fsm *, struct mbuf *);
154extern void fsm_Close(struct fsm *);
155extern void fsm_NullRecvResetReq(struct fsm *);
156extern void fsm_NullRecvResetAck(struct fsm *, u_char);
157extern void fsm_Reopen(struct fsm *);
158extern void fsm2initial(struct fsm *);
159extern const char *State2Nam(u_int);
161 struct bundle *, struct link *, const struct fsm_parent *,
162 struct fsm_callbacks *, const char *[3]);
163extern void fsm_Output(struct fsm *, u_int, u_int, u_char *, int);
164extern void fsm_Open(struct fsm *);
165extern void fsm_Up(struct fsm *);
166extern void fsm_Down(struct fsm *);
167extern void fsm_Input(struct fsm *, struct mbuf *);
168extern void fsm_Close(struct fsm *);
169extern void fsm_NullRecvResetReq(struct fsm *);
170extern void fsm_NullRecvResetAck(struct fsm *, u_char);
171extern void fsm_Reopen(struct fsm *);
172extern void fsm2initial(struct fsm *);
173extern const char *State2Nam(u_int);