1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31struct mbuf;
32struct physical;
33struct datalink;
34
35/* fsm states */
36#define CBCP_CLOSED	(0)	/* Not in use */
37#define CBCP_STOPPED	(1)	/* Waiting for a REQ */
38#define CBCP_REQSENT	(2)	/* Waiting for a RESP */
39#define CBCP_RESPSENT	(3)	/* Waiting for an ACK */
40#define CBCP_ACKSENT	(4)	/* Waiting for an LCP Term REQ */
41
42struct cbcpcfg {
43  u_char delay;
44  char phone[SCRIPT_LEN];
45  long fsmretry;
46};
47
48struct cbcp {
49  unsigned required : 1;	/* Are we gonna call back ? */
50  struct physical *p;		/* On this physical link */
51  struct {
52    u_char type;		/* cbcp_data::type (none/me/him/list) */
53    u_char delay;		/* How long to delay */
54    char phone[SCRIPT_LEN];	/* What to dial */
55
56    int state;			/* Our FSM state */
57    u_char id;			/* Our FSM ID */
58    u_char restart;		/* FSM Send again ? */
59    struct pppTimer timer;	/* Resend last option */
60  } fsm;
61};
62
63extern void cbcp_Init(struct cbcp *, struct physical *);
64extern void cbcp_Up(struct cbcp *);
65extern struct mbuf *cbcp_Input(struct bundle *, struct link *, struct mbuf *);
66extern void cbcp_Down(struct cbcp *);
67extern void cbcp_ReceiveTerminateReq(struct physical *);
68