1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29struct mbuf;
30struct physical;
31struct datalink;
32
33/* fsm states */
34#define CBCP_CLOSED	(0)	/* Not in use */
35#define CBCP_STOPPED	(1)	/* Waiting for a REQ */
36#define CBCP_REQSENT	(2)	/* Waiting for a RESP */
37#define CBCP_RESPSENT	(3)	/* Waiting for an ACK */
38#define CBCP_ACKSENT	(4)	/* Waiting for an LCP Term REQ */
39
40struct cbcpcfg {
41  u_char delay;
42  char phone[SCRIPT_LEN];
43  long fsmretry;
44};
45
46struct cbcp {
47  unsigned required : 1;	/* Are we gonna call back ? */
48  struct physical *p;		/* On this physical link */
49  struct {
50    u_char type;		/* cbcp_data::type (none/me/him/list) */
51    u_char delay;		/* How long to delay */
52    char phone[SCRIPT_LEN];	/* What to dial */
53
54    int state;			/* Our FSM state */
55    u_char id;			/* Our FSM ID */
56    u_char restart;		/* FSM Send again ? */
57    struct pppTimer timer;	/* Resend last option */
58  } fsm;
59};
60
61extern void cbcp_Init(struct cbcp *, struct physical *);
62extern void cbcp_Up(struct cbcp *);
63extern struct mbuf *cbcp_Input(struct bundle *, struct link *, struct mbuf *);
64extern void cbcp_Down(struct cbcp *);
65extern void cbcp_ReceiveTerminateReq(struct physical *);
66