1 /*
2 * Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 *---------------------------------------------------------------------------
26 *
27 * i4b_l3fsm.c - layer 3 FSM
28 * -------------------------
29 *
30 * $Id: i4b_l3fsm.h,v 1.1.1.1 2001/01/05 12:49:56 martin Exp $
31 *
32 * $FreeBSD$
33 *
34 * last edit-date: [Thu Apr 27 11:07:16 2000]
35 *
36 *---------------------------------------------------------------------------*/
37
38 #ifndef _I4B_L3FSM_H_
39 #define _I4B_L3FSM_H_
40
41 enum Q931_states {
42 ST_U0,
43 ST_U1,
44 ST_U3,
45 ST_U4,
46 ST_U6,
47 ST_U7,
48 ST_U8,
49 ST_U9,
50 ST_U10,
51 ST_U11,
52 ST_U12,
53 ST_U19,
54
55 ST_IWA, /* incoming call, wait establish, then accept */
56 ST_IWR, /* incoming call, wait establish, then reject */
57 ST_OW, /* outgoing call, wait establish */
58 ST_IWL, /* incoming call, wait establish, then alert */
59
60 ST_SUSE, /* SUBroutine SETs new state on exit */
61 ST_ILL, /* Illegal */
62
63 N_STATES /* number of states */
64 };
65
66 enum Q931_events {
67
68 EV_SETUPRQ, /* setup request from L4 */
69 EV_DISCRQ, /* disconnect request from L4 */
70 EV_RELRQ, /* release request from L4 */
71 EV_ALERTRQ, /* alerting request from L4 */
72 EV_SETACRS, /* setup response accept from l4 */
73 EV_SETRJRS, /* setup response reject from l4 */
74 EV_SETDCRS, /* setup response dontcare from l4 */
75
76 EV_SETUP, /* incoming SETUP message from L2 */
77 EV_STATUS, /* incoming STATUS message from L2 */
78 EV_RELEASE, /* incoming RELEASE message from L2 */
79 EV_RELCOMP, /* incoming RELEASE COMPLETE from L2 */
80 EV_SETUPAK, /* incoming SETUP ACK message from L2 */
81 EV_CALLPRC, /* incoming CALL PROCEEDING from L2 */
82 EV_ALERT, /* incoming ALERT message from L2 */
83 EV_CONNECT, /* incoming CONNECT message from L2 */
84 EV_PROGIND, /* incoming Progress IND from L2 */
85 EV_DISCONN, /* incoming DISCONNECT message from L2 */
86 EV_CONACK, /* incoming CONNECT ACK message from L2 */
87 EV_STATENQ, /* incoming STATUS ENQ message from L2 */
88 EV_INFO, /* incoming INFO message from L2 */
89 EV_FACILITY, /* FACILITY message */
90
91 EV_T303EXP, /* Timer T303 expired */
92 EV_T305EXP, /* Timer T305 expired */
93 EV_T308EXP, /* Timer T308 expired */
94 EV_T309EXP, /* Timer T309 expired */
95 EV_T310EXP, /* Timer T310 expired */
96 EV_T313EXP, /* Timer T313 expired */
97
98 EV_DLESTIN, /* dl establish indication from l2 */
99 EV_DLRELIN, /* dl release indication from l2 */
100 EV_DLESTCF, /* dl establish confirm from l2 */
101 EV_DLRELCF, /* dl release indication from l2 */
102
103 EV_ILL, /* Illegal */
104 N_EVENTS
105 };
106
107 #endif /* _I4B_L3FSM_H_ */
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