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.c,v 1.1 2003/04/06 04:37:48 tg Exp $
31 *
32 * $FreeBSD$
33 *
34 * last edit-date: [Fri Jan 5 11:33:47 2001]
35 *
36 *---------------------------------------------------------------------------*/
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: i4b_l3fsm.c,v 1.9 2002/09/27 15:37:56 provos Exp $");
40
41 #ifdef __FreeBSD__
42 #include "i4bq931.h"
43 #else
44 #define NI4BQ931 1
45 #endif
46 #if NI4BQ931 > 0
47
48 #include <sys/param.h>
49 #include <sys/kernel.h>
50 #include <sys/systm.h>
51 #include <sys/mbuf.h>
52 #include <sys/socket.h>
53 #include <net/if.h>
54
55 #include <sys/timeout.h>
56
57 #ifdef __FreeBSD__
58 #include <machine/i4b_debug.h>
59 #include <machine/i4b_ioctl.h>
60 #include <machine/i4b_cause.h>
61 #else
62 #include <netisdn/i4b_debug.h>
63 #include <netisdn/i4b_ioctl.h>
64 #include <netisdn/i4b_cause.h>
65 #endif
66
67 #include <netisdn/i4b_isdnq931.h>
68 #include <netisdn/i4b_l2.h>
69 #include <netisdn/i4b_l1l2.h>
70 #include <netisdn/i4b_l3l4.h>
71 #include <netisdn/i4b_mbuf.h>
72 #include <netisdn/i4b_global.h>
73 #include <netisdn/i4b_l3.h>
74 #include <netisdn/i4b_l3fsm.h>
75 #include <netisdn/i4b_q931.h>
76 #include <netisdn/i4b_l4.h>
77
78
79 static void F_00A(call_desc_t *cd), F_00H(call_desc_t *cd), F_00I(call_desc_t *cd);
80 static void F_00J(call_desc_t *cd);
81
82 static void F_01B(call_desc_t *cd), F_01K(call_desc_t *cd), F_01L(call_desc_t *cd);
83 static void F_01M(call_desc_t *cd), F_01N(call_desc_t *cd), F_01U(call_desc_t *cd);
84 static void F_01O(call_desc_t *cd);
85
86 static void F_03C(call_desc_t *cd), F_03N(call_desc_t *cd), F_03O(call_desc_t *cd);
87 static void F_03P(call_desc_t *cd), F_03Y(call_desc_t *cd);
88
89 static void F_04O(call_desc_t *cd);
90
91 static void F_06D(call_desc_t *cd), F_06E(call_desc_t *cd), F_06F(call_desc_t *cd);
92 static void F_06G(call_desc_t *cd), F_06J(call_desc_t *cd), F_06Q(call_desc_t *cd);
93
94 static void F_07E(call_desc_t *cd), F_07F(call_desc_t *cd), F_07G(call_desc_t *cd);
95
96 static void F_08R(call_desc_t *cd), F_08Z(call_desc_t *cd);
97
98 static void F_09D(call_desc_t *cd), F_09E(call_desc_t *cd), F_09F(call_desc_t *cd);
99 static void F_09G(call_desc_t *cd);
100
101 static void F_11J(call_desc_t *cd), F_11Q(call_desc_t *cd), F_11V(call_desc_t *cd);
102
103 static void F_12C(call_desc_t *cd), F_12J(call_desc_t *cd);
104
105 static void F_19I(call_desc_t *cd), F_19J(call_desc_t *cd), F_19K(call_desc_t *cd);
106 static void F_19W(call_desc_t *cd);
107
108 static void F_NCNA(call_desc_t *cd), F_STENQ(call_desc_t *cd), F_STAT(call_desc_t *cd);
109 static void F_INFO(call_desc_t *cd), F_RELCP(call_desc_t *cd), F_REL(call_desc_t *cd);
110 static void F_DISC(call_desc_t *cd), F_DCRQ(call_desc_t *cd), F_UEM(call_desc_t *cd);
111 static void F_SIGN(call_desc_t *cd), F_DLEI(call_desc_t *cd), F_ILL(call_desc_t *cd);
112 static void F_309TO(call_desc_t *cd), F_DECF(call_desc_t *cd), F_FCTY(call_desc_t *cd);
113 static void F_DECF1(call_desc_t *cd), F_DECF2(call_desc_t *cd), F_DECF3(call_desc_t *cd);
114 static void F_DLRI(call_desc_t *cd), F_DLRIA(call_desc_t *cd), F_DECF4(call_desc_t *cd);
115
116 #if DO_I4B_DEBUG
117 static char *l3state_text[N_STATES] = {
118 "ST_U0 - Null",
119 "ST_U1 - Out Init",
120 "ST_U3 - Out Proc",
121 "ST_U4 - Out Delv",
122 "ST_U6 - In Pres",
123 "ST_U7 - In Rxd",
124 "ST_U8 - In ConReq",
125 "ST_U9 - In Proc",
126 "ST_U10 - Active",
127 "ST_U11 - Disc Req",
128 "ST_U12 - Disc Ind",
129 "ST_U19 - Rel Req",
130
131 "ST_IWA - In Wait EST-Accept",
132 "ST_IWR - In Wait EST-Reject",
133 "ST_OW - Out Wait EST",
134 "ST_IWL - In Wait EST-Alert",
135
136 "ST_SUSE - Subroutine sets state",
137
138 "Illegal State"
139 };
140
141 static char *l3event_text[N_EVENTS] = {
142 "EV_SETUPRQ - L4 SETUP REQ", /* setup request from L4 */
143 "EV_DISCRQ - L4 DISC REQ", /* disconnect request from L4 */
144 "EV_RELRQ - L4 REL REQ", /* release request from L4 */
145 "EV_ALERTRQ - L4 ALERT REQ", /* alerting request from L4 */
146 "EV_SETACRS - L4 accept RSP", /* setup response accept from l4 */
147 "EV_SETRJRS - L4 reject RSP", /* setup response reject from l4 */
148 "EV_SETDCRS - L4 ignore RSP", /* setup response dontcare from l4 */
149
150 "EV_SETUP - rxd SETUP", /* incoming SETUP message from L2 */
151 "EV_STATUS - rxd STATUS", /* incoming STATUS message from L2 */
152 "EV_RELEASE - rxd REL", /* incoming RELEASE message from L2 */
153 "EV_RELCOMP - rxd REL COMPL", /* incoming RELEASE COMPLETE from L2 */
154 "EV_SETUPAK - rxd SETUP ACK", /* incoming SETUP ACK message from L2 */
155 "EV_CALLPRC - rxd CALL PROC", /* incoming CALL PROCEEDING from L2 */
156 "EV_ALERT - rxd ALERT", /* incoming ALERT message from L2 */
157 "EV_CONNECT - rxd CONNECT", /* incoming CONNECT message from L2 */
158 "EV_PROGIND - rxd PROG IND", /* incoming Progress IND from L2 */
159 "EV_DISCONN - rxd DISC", /* incoming DISCONNECT message from L2 */
160 "EV_CONACK - rxd CONN ACK", /* incoming CONNECT ACK message from L2 */
161 "EV_STATENQ - rxd STAT ENQ", /* incoming STATUS ENQ message from L2 */
162 "EV_INFO - rxd INFO", /* incoming INFO message from L2 */
163 "EV_FACILITY - rxd FACILITY", /* incoming FACILITY message */
164
165 "EV_T303EXP - T303 timeout", /* Timer T303 expired */
166 "EV_T305EXP - T305 timeout", /* Timer T305 expired */
167 "EV_T308EXP - T308 timeout", /* Timer T308 expired */
168 "EV_T309EXP - T309 timeout", /* Timer T309 expired */
169 "EV_T310EXP - T310 timeout", /* Timer T310 expired */
170 "EV_T313EXP - T313 timeout", /* Timer T313 expired */
171
172 "EV_DLESTIN - L2 DL_Est_Ind", /* dl establish indication from l2 */
173 "EV_DLRELIN - L2 DL_Rel_Ind", /* dl release indication from l2 */
174 "EV_DLESTCF - L2 DL_Est_Cnf", /* dl establish confirm from l2 */
175 "EV_DLRELCF - L2 DL_Rel_Cnf", /* dl release confirm from l2 */
176
177 "EV_ILL - Illegal event!!" /* Illegal */
178 };
179 #endif
180
181 /*---------------------------------------------------------------------------*
182 * layer 3 state transition table
183 *---------------------------------------------------------------------------*/
184 struct l3state_tab {
185 void (*func) (call_desc_t *); /* function to execute */
186 int newstate; /* next state */
187 } l3state_tab[N_EVENTS][N_STATES] = {
188
189 /* STATE: ST_U0 ST_U1 ST_U3 ST_U4 ST_U6 ST_U7 ST_U8 ST_U9 ST_U10 ST_U11 ST_U12 ST_U19 ST_IWA ST_IWR ST_OW ST_IWL ST_SUBSET ST_ILL */
190 /* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
191 /*EV_SETUPRQ*/ {{F_00A, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
192 /*EV_DISCRQ */ {{F_ILL, ST_ILL}, {F_01B, ST_U11}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_ILL, ST_ILL}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_ILL, ST_ILL}, {F_NCNA, ST_U12}, {F_ILL, ST_ILL}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_DCRQ, ST_U11}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
193 /*EV_RELRQ */ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_03C, ST_U19}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_12C, ST_U19}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
194 /*EV_ALERTRQ*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_06D, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_09D, ST_U7}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
195 /*EV_SETACRS*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_06E, ST_SUSE}, {F_07E, ST_U8}, {F_ILL, ST_ILL}, {F_09E, ST_U8}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
196 /*EV_SETRJRS*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_06F, ST_SUSE}, {F_07F, ST_U0}, {F_ILL, ST_ILL}, {F_09F, ST_U0}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
197 /*EV_SETDCRS*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_06G, ST_U0}, {F_07G, ST_U0}, {F_ILL, ST_ILL}, {F_09G, ST_U0}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
198 /* STATE: ST_U0 ST_U1 ST_U3 ST_U4 ST_U6 ST_U7 ST_U8 ST_U9 ST_U10 ST_U11 ST_U12 ST_U19 ST_IWA ST_IWR ST_OW ST_IWL ST_SUBSET ST_ILL */
199 /* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
200 /*EV_SETUP */ {{F_00H, ST_U6}, {F_SIGN, ST_U1}, {F_SIGN, ST_U3}, {F_SIGN, ST_U4}, {F_SIGN, ST_U6}, {F_SIGN, ST_U7}, {F_SIGN, ST_U8}, {F_SIGN, ST_U9}, {F_SIGN, ST_U10}, {F_SIGN, ST_U11}, {F_SIGN, ST_U12}, {F_SIGN, ST_U19}, {F_SIGN, ST_IWA}, {F_SIGN, ST_IWR}, {F_SIGN, ST_OW}, {F_SIGN, ST_IWL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
201 /*EV_STATUS */ {{F_00I, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_19I, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_STAT, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
202 /*EV_RELEASE*/ {{F_00J, ST_U0}, {F_UEM, ST_SUSE}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_06J, ST_U0}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_11J, ST_U0}, {F_12J, ST_U0}, {F_19J, ST_U0}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_REL, ST_U0}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
203 /*EV_RELCOMP*/ {{F_NCNA, ST_U0}, {F_01K, ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_19K, ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_RELCP,ST_U0}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
204 /*EV_SETUPAK*/ {{F_UEM, ST_SUSE}, {F_01L, ST_U3}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
205 /*EV_CALLPRC*/ {{F_UEM, ST_SUSE}, {F_01M, ST_U3}, {F_NCNA, ST_U3}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
206 /*EV_ALERT */ {{F_UEM, ST_SUSE}, {F_01N, ST_U4}, {F_03N, ST_U4}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
207 /*EV_CONNECT*/ {{F_UEM, ST_SUSE}, {F_01O, ST_U10}, {F_03O, ST_U10}, {F_04O, ST_U10}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
208 /*EV_PROGIND*/ {{F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_03P, ST_U3}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
209 /*EV_DISCONN*/ {{F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_06Q, ST_U12}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_11Q, ST_U19}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_DISC, ST_U12}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
210 /*EV_CONACK */ {{F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_08R, ST_U10}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
211 /*EV_STATENQ*/ {{F_STENQ,ST_U0}, {F_STENQ,ST_U1}, {F_STENQ,ST_U3}, {F_STENQ,ST_U4}, {F_STENQ,ST_U6}, {F_STENQ,ST_U7}, {F_STENQ,ST_U8}, {F_STENQ,ST_U9}, {F_STENQ,ST_U10}, {F_STENQ,ST_U11}, {F_STENQ,ST_U12}, {F_STENQ,ST_U19}, {F_STENQ,ST_IWA}, {F_STENQ,ST_IWR}, {F_STENQ,ST_OW}, {F_STENQ,ST_OW}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
212 /*EV_INFO */ {{F_UEM, ST_SUSE}, {F_UEM, ST_SUSE}, {F_INFO, ST_U3}, {F_INFO, ST_U4}, {F_UEM, ST_SUSE}, {F_INFO, ST_U7}, {F_INFO, ST_U8}, {F_INFO, ST_U9}, {F_INFO, ST_U10}, {F_INFO, ST_U11}, {F_INFO, ST_U12}, {F_UEM, ST_SUSE}, {F_INFO, ST_IWA}, {F_INFO, ST_IWR}, {F_INFO, ST_OW}, {F_INFO, ST_OW}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
213 /*EV_FACILITY*/ {{F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_FCTY, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
214 /* STATE: ST_U0 ST_U1 ST_U3 ST_U4 ST_U6 ST_U7 ST_U8 ST_U9 ST_U10 ST_U11 ST_U12 ST_U19 ST_IWA ST_IWR ST_OW ST_IWL ST_SUBSET ST_ILL */
215 /* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
216 /*EV_T303EXP*/ {{F_ILL, ST_ILL}, {F_01U, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
217 /*EV_T305EXP*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_11V, ST_U19}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
218 /*EV_T308EXP*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_19W, ST_SUSE}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
219 /*EV_T309EXP*/ {{F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_309TO,ST_U0}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
220 /*EV_T310EXP*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_03Y, ST_U11}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
221 /*EV_T313EXP*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_08Z, ST_U11}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
222 /* STATE: ST_U0 ST_U1 ST_U3 ST_U4 ST_U6 ST_U7 ST_U8 ST_U9 ST_U10 ST_U11 ST_U12 ST_U19 ST_IWA ST_IWR ST_OW ST_IWL ST_SUBSET ST_ILL */
223 /* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
224 /*EV_DLESTIN*/ {{F_ILL, ST_ILL}, {F_DLEI, ST_U1}, {F_DLEI, ST_U3}, {F_DLEI, ST_U4}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_DLEI, ST_U1}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
225 /*EV_DLRELIN*/ {{F_NCNA, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRIA,ST_U10}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_DLRI, ST_U0}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
226 /*EV_DLESTCF*/ {{F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF, ST_SUSE}, {F_DECF2,ST_U8}, {F_DECF3,ST_U0}, {F_DECF1,ST_U1}, {F_DECF4,ST_U7}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
227 /*EV_DLRELCF*/ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}},
228 /*EV_ILL */ {{F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}}
229 };
230
231 /*---------------------------------------------------------------------------*
232 * event handler
233 *---------------------------------------------------------------------------*/
next_l3state(call_desc_t * cd,int event)234 void next_l3state(call_desc_t *cd, int event)
235 {
236 int currstate, newstate;
237
238 if(event > N_EVENTS)
239 panic("i4b_l3fsm.c: event > N_EVENTS");
240
241 currstate = cd->Q931state;
242
243 if(currstate > N_STATES)
244 panic("i4b_l3fsm.c: currstate > N_STATES");
245
246 newstate = l3state_tab[event][currstate].newstate;
247
248 if(newstate > N_STATES)
249 panic("i4b_l3fsm.c: newstate > N_STATES");
250
251 NDBGL3(L3_F_MSG, "L3 FSM event [%s]: [%s => %s]",
252 l3event_text[event],
253 l3state_text[currstate],
254 l3state_text[newstate]);
255
256 /* execute function */
257
258 (*l3state_tab[event][currstate].func)(cd);
259
260 if(newstate == ST_ILL)
261 {
262 newstate = currstate;
263 NDBGL3(L3_F_ERR, "FSM illegal state, state = %s, event = %s!",
264 l3state_text[newstate],
265 l3event_text[event]);
266 }
267
268 if(newstate != ST_SUSE)
269 cd->Q931state = newstate;
270 }
271
272 #if DO_I4B_DEBUG
273 /*---------------------------------------------------------------------------*
274 * return pointer to current state description
275 *---------------------------------------------------------------------------*/
print_l3state(call_desc_t * cd)276 char *print_l3state(call_desc_t *cd)
277 {
278 return((char *) l3state_text[cd->Q931state]);
279 }
280 #endif
281
282 /*---------------------------------------------------------------------------*
283 * L3 FSM state U0 event L4 setup req
284 *---------------------------------------------------------------------------*/
F_00A(call_desc_t * cd)285 static void F_00A(call_desc_t *cd)
286 {
287 NDBGL3(L3_F_MSG, "FSM function F_00A executing");
288
289 if(i4b_get_dl_stat(cd) == DL_DOWN)
290 {
291 struct l2_softc * l2sc = (l2_softc_t*)cd->l3drv->l1_token;
292 i4b_dl_establish_req(l2sc, l2sc->drv);
293 cd->Q931state = ST_OW;
294 }
295 else
296 {
297 i4b_l3_tx_setup(cd);
298 cd->Q931state = ST_U1;
299 }
300
301 cd->T303_first_to = 1;
302 T303_start(cd);
303 }
304
305 /*---------------------------------------------------------------------------*
306 * L3 FSM state U0 event SETUP from L2
307 *---------------------------------------------------------------------------*/
F_00H(call_desc_t * cd)308 static void F_00H(call_desc_t *cd)
309 {
310 NDBGL3(L3_F_MSG, "FSM function F_00H executing");
311 i4b_l4_connect_ind(cd); /* tell l4 we have an incoming setup */
312 }
313
314 /*---------------------------------------------------------------------------*
315 * L3 FSM state U0 event STATUS from L2
316 *---------------------------------------------------------------------------*/
F_00I(call_desc_t * cd)317 static void F_00I(call_desc_t *cd)
318 {
319 NDBGL3(L3_F_MSG, "FSM function F_00I executing");
320
321 if(cd->call_state != 0)
322 {
323 cd->cause_out = 101;
324 i4b_l3_tx_release_complete(cd, 1); /* 1 = send cause */
325 }
326 cd->Q931state = ST_U0;
327 }
328
329 /*---------------------------------------------------------------------------*
330 * L3 FSM state U0 event RELEASE from L2
331 *---------------------------------------------------------------------------*/
F_00J(call_desc_t * cd)332 static void F_00J(call_desc_t *cd)
333 {
334 NDBGL3(L3_F_MSG, "FSM function F_00J executing");
335 i4b_l3_tx_release_complete(cd, 0); /* 0 = don't send cause */
336 }
337
338 /*---------------------------------------------------------------------------*
339 * L3 FSM state U1 event disconnect req from L4
340 *---------------------------------------------------------------------------*/
F_01B(call_desc_t * cd)341 static void F_01B(call_desc_t *cd)
342 {
343 NDBGL3(L3_F_MSG, "FSM function F_01B executing");
344 /* cause from L4 */
345 i4b_l3_tx_disconnect(cd);
346 T303_stop(cd);
347 T305_start(cd);
348 }
349
350 /*---------------------------------------------------------------------------*
351 * L3 FSM state U1 event RELEASE COMPLETE from L2
352 *---------------------------------------------------------------------------*/
F_01K(call_desc_t * cd)353 static void F_01K(call_desc_t *cd)
354 {
355 NDBGL3(L3_F_MSG, "FSM function F_01K executing");
356 T303_stop(cd);
357 i4b_l4_disconnect_ind(cd); /* tell l4 we were rejected */
358 freecd_by_cd(cd);
359 }
360
361 /*---------------------------------------------------------------------------*
362 * L3 FSM state U1 event SETUP ACK from L2
363 *---------------------------------------------------------------------------*/
F_01L(call_desc_t * cd)364 static void F_01L(call_desc_t *cd)
365 {
366 NDBGL3(L3_F_MSG, "FSM function F_01L executing");
367 T303_stop(cd);
368
369 /*
370 * since this implementation does NOT support overlap sending,
371 * we react here as if we received a CALL PROCEEDING because
372 * several PBX's react with a SETUP ACK even if the called
373 * number is complete AND we sent a SENDING COMPLETE in the
374 * preceding SETUP message. (-hm)
375 */
376
377 T310_start(cd);
378 i4b_l4_proceeding_ind(cd);
379 }
380
381 /*---------------------------------------------------------------------------*
382 * L3 FSM state U1 event CALL PROCEEDING from L2
383 *---------------------------------------------------------------------------*/
F_01M(call_desc_t * cd)384 static void F_01M(call_desc_t *cd)
385 {
386 NDBGL3(L3_F_MSG, "FSM function F_01M executing");
387 T303_stop(cd);
388 T310_start(cd);
389 i4b_l4_proceeding_ind(cd);
390 }
391
392 /*---------------------------------------------------------------------------*
393 * L3 FSM state U1 event ALERT from L2 (XXX !)
394 *---------------------------------------------------------------------------*/
F_01N(call_desc_t * cd)395 static void F_01N(call_desc_t *cd)
396 {
397 NDBGL3(L3_F_MSG, "FSM function F_01N executing");
398 T303_stop(cd);
399 i4b_l4_alert_ind(cd);
400 }
401
402 /*---------------------------------------------------------------------------*
403 * L3 FSM state U1 event CONNECT from L2 (XXX !)
404 *---------------------------------------------------------------------------*/
F_01O(call_desc_t * cd)405 static void F_01O(call_desc_t *cd)
406 {
407 NDBGL3(L3_F_MSG, "FSM function F_01O executing");
408 T303_stop(cd);
409 i4b_l3_tx_connect_ack(cd);
410 i4b_l4_connect_active_ind(cd);
411 }
412
413 /*---------------------------------------------------------------------------*
414 * L3 FSM state U1 event T303 timeout
415 *---------------------------------------------------------------------------*/
F_01U(call_desc_t * cd)416 static void F_01U(call_desc_t *cd)
417 {
418 NDBGL3(L3_F_MSG, "FSM function F_01U executing");
419 if(cd->T303_first_to == 1)
420 {
421 cd->T303_first_to = 0;
422 i4b_l3_tx_setup(cd);
423 T303_start(cd);
424 cd->Q931state = ST_U1;
425 }
426 else
427 {
428 i4b_l4_disconnect_ind(cd);
429 freecd_by_cd(cd);
430 cd->Q931state = ST_U0;
431 }
432 }
433
434 /*---------------------------------------------------------------------------*
435 * L3 FSM state U3 event release req from L4
436 *---------------------------------------------------------------------------*/
F_03C(call_desc_t * cd)437 static void F_03C(call_desc_t *cd)
438 {
439 NDBGL3(L3_F_MSG, "FSM function F_03C executing");
440 T310_stop(cd);
441 cd->cause_out = 6;
442 i4b_l3_tx_release(cd, 1); /* 0 = don't send cause */
443 cd->T308_first_to = 1;
444 T308_start(cd);
445 }
446
447 /*---------------------------------------------------------------------------*
448 * L3 FSM state U3 event ALERT from L2
449 *---------------------------------------------------------------------------*/
F_03N(call_desc_t * cd)450 static void F_03N(call_desc_t *cd)
451 {
452 NDBGL3(L3_F_MSG, "FSM function F_03N executing");
453 T310_stop(cd);
454 i4b_l4_alert_ind(cd);
455 }
456
457 /*---------------------------------------------------------------------------*
458 * L3 FSM state U3 event CONNECT from L2
459 *---------------------------------------------------------------------------*/
F_03O(call_desc_t * cd)460 static void F_03O(call_desc_t *cd)
461 {
462 NDBGL3(L3_F_MSG, "FSM function F_03O executing");
463 T310_stop(cd);
464 i4b_l3_tx_connect_ack(cd); /* CONNECT ACK to network */
465 i4b_l4_connect_active_ind(cd);
466 }
467
468 /*---------------------------------------------------------------------------*
469 * L3 FSM state U3 event PROGESS IND from L2
470 *---------------------------------------------------------------------------*/
F_03P(call_desc_t * cd)471 static void F_03P(call_desc_t *cd)
472 {
473 NDBGL3(L3_F_MSG, "FSM function F_03P executing");
474 T310_stop(cd);
475 #ifdef NOTDEF
476 i4b_l4_progress_ind(cd);
477 #endif
478 }
479
480 /*---------------------------------------------------------------------------*
481 * L3 FSM state U3 event T310 timeout
482 *---------------------------------------------------------------------------*/
F_03Y(call_desc_t * cd)483 static void F_03Y(call_desc_t *cd)
484 {
485 NDBGL3(L3_F_MSG, "FSM function F_03Y executing");
486 cd->cause_out = 102; /* recovery on timer expiry */
487 i4b_l3_tx_disconnect(cd);
488 T305_start(cd);
489 i4b_l4_disconnect_ind(cd);
490 }
491
492 /*---------------------------------------------------------------------------*
493 * L3 FSM state U4 event CONNECT from L2
494 *---------------------------------------------------------------------------*/
F_04O(call_desc_t * cd)495 static void F_04O(call_desc_t *cd)
496 {
497 NDBGL3(L3_F_MSG, "FSM function F_04O executing");
498 i4b_l3_tx_connect_ack(cd); /* CONNECT ACK to network */
499 i4b_l4_connect_active_ind(cd);
500 }
501
502 /*---------------------------------------------------------------------------*
503 * L3 FSM state U6 event alert req from L4
504 *---------------------------------------------------------------------------*/
F_06D(call_desc_t * cd)505 static void F_06D(call_desc_t *cd)
506 {
507 NDBGL3(L3_F_MSG, "FSM function F_06D executing");
508
509 if(i4b_get_dl_stat(cd) == DL_DOWN)
510 {
511 struct l2_softc * l2sc = (l2_softc_t*)cd->l3drv->l1_token;
512 i4b_dl_establish_req(l2sc, l2sc->drv);
513 cd->Q931state = ST_IWL;
514 }
515 else
516 {
517 i4b_l3_tx_alert(cd);
518 cd->Q931state = ST_U7;
519 }
520 }
521
522 /*---------------------------------------------------------------------------*
523 * L3 FSM state U6 event incoming setup accept from L4
524 *---------------------------------------------------------------------------*/
F_06E(call_desc_t * cd)525 static void F_06E(call_desc_t *cd)
526 {
527 NDBGL3(L3_F_MSG, "FSM function F_06E executing");
528
529 if(i4b_get_dl_stat(cd) == DL_DOWN)
530 {
531 struct l2_softc * l2sc = (l2_softc_t*)cd->l3drv->l1_token;
532 i4b_dl_establish_req(l2sc, l2sc->drv);
533 cd->Q931state = ST_IWA;
534 }
535 else
536 {
537 i4b_l3_tx_connect(cd);
538 cd->Q931state = ST_U8;
539 }
540 T313_start(cd);
541 }
542
543 /*---------------------------------------------------------------------------*
544 * L3 FSM state U6 event incoming setup reject from L4
545 *---------------------------------------------------------------------------*/
F_06F(call_desc_t * cd)546 static void F_06F(call_desc_t *cd)
547 {
548 NDBGL3(L3_F_MSG, "FSM function F_06F executing");
549
550 if(i4b_get_dl_stat(cd) == DL_DOWN)
551 {
552 struct l2_softc * l2sc = (l2_softc_t*)cd->l3drv->l1_token;
553 i4b_dl_establish_req(l2sc, l2sc->drv);
554 cd->Q931state = ST_IWR;
555 }
556 else
557 {
558 int s = splnet();
559 i4b_l3_tx_release_complete(cd, 1);
560 cd->Q931state = ST_U0;
561 freecd_by_cd(cd);
562 splx(s);
563 }
564 }
565
566 /*---------------------------------------------------------------------------*
567 * L3 FSM state U6 event incoming setup ignore from L4
568 *---------------------------------------------------------------------------*/
F_06G(call_desc_t * cd)569 static void F_06G(call_desc_t *cd)
570 {
571 NDBGL3(L3_F_MSG, "FSM function F_06G executing");
572 freecd_by_cd(cd);
573 }
574
575 /*---------------------------------------------------------------------------*
576 * L3 FSM state U6 event RELEASE from L2
577 *---------------------------------------------------------------------------*/
F_06J(call_desc_t * cd)578 static void F_06J(call_desc_t *cd)
579 {
580 NDBGL3(L3_F_MSG, "FSM function F_06J executing");
581 i4b_l3_tx_release_complete(cd, 0);
582 i4b_l4_disconnect_ind(cd);
583 freecd_by_cd(cd);
584 }
585
586 /*---------------------------------------------------------------------------*
587 * L3 FSM state U6 event DISCONNECT from L2
588 *---------------------------------------------------------------------------*/
F_06Q(call_desc_t * cd)589 static void F_06Q(call_desc_t *cd)
590 {
591 NDBGL3(L3_F_MSG, "FSM function F_06Q executing");
592 i4b_l4_disconnect_ind(cd);
593 }
594
595 /*---------------------------------------------------------------------------*
596 * L3 FSM state U7 event setup response accept from L4
597 *---------------------------------------------------------------------------*/
F_07E(call_desc_t * cd)598 static void F_07E(call_desc_t *cd)
599 {
600 NDBGL3(L3_F_MSG, "FSM function F_07E executing");
601 i4b_l3_tx_connect(cd);
602 T313_start(cd);
603 }
604
605 /*---------------------------------------------------------------------------*
606 * L3 FSM state U7 event setup response reject from L4
607 *---------------------------------------------------------------------------*/
F_07F(call_desc_t * cd)608 static void F_07F(call_desc_t *cd)
609 {
610 NDBGL3(L3_F_MSG, "FSM function F_07F executing");
611 i4b_l3_tx_release_complete(cd, 1);
612 freecd_by_cd(cd);
613 }
614
615 /*---------------------------------------------------------------------------*
616 * L3 FSM state U7 event setup response ignore from L4
617 *---------------------------------------------------------------------------*/
F_07G(call_desc_t * cd)618 static void F_07G(call_desc_t *cd)
619 {
620 NDBGL3(L3_F_MSG, "FSM function F_07G executing");
621 freecd_by_cd(cd);
622 }
623
624 /*---------------------------------------------------------------------------*
625 * L3 FSM state U8 event CONNECT ACK from L2
626 *---------------------------------------------------------------------------*/
F_08R(call_desc_t * cd)627 static void F_08R(call_desc_t *cd)
628 {
629 NDBGL3(L3_F_MSG, "FSM function F_08R executing");
630 T313_stop(cd);
631 i4b_l4_connect_active_ind(cd);
632 }
633
634 /*---------------------------------------------------------------------------*
635 * L3 FSM state U8 event T313 timeout
636 *---------------------------------------------------------------------------*/
F_08Z(call_desc_t * cd)637 static void F_08Z(call_desc_t *cd)
638 {
639 NDBGL3(L3_F_MSG, "FSM function F_08Z executing");
640 cd->cause_out = 102; /* recovery on timer expiry */
641 i4b_l3_tx_disconnect(cd);
642 T305_start(cd);
643 i4b_l4_disconnect_ind(cd);
644 }
645
646 /*---------------------------------------------------------------------------*
647 * L3 FSM state U9 event alert req from L4
648 *---------------------------------------------------------------------------*/
F_09D(call_desc_t * cd)649 static void F_09D(call_desc_t *cd)
650 {
651 NDBGL3(L3_F_MSG, "FSM function F_09D executing");
652 i4b_l3_tx_alert(cd);
653 }
654
655 /*---------------------------------------------------------------------------*
656 * L3 FSM state U9 event setup response accept from L4
657 *---------------------------------------------------------------------------*/
F_09E(call_desc_t * cd)658 static void F_09E(call_desc_t *cd)
659 {
660 NDBGL3(L3_F_MSG, "FSM function F_09E executing");
661 i4b_l3_tx_connect(cd);
662 T313_start(cd);
663 }
664
665 /*---------------------------------------------------------------------------*
666 * L3 FSM state U9 event setup response reject from L4
667 *---------------------------------------------------------------------------*/
F_09F(call_desc_t * cd)668 static void F_09F(call_desc_t *cd)
669 {
670 NDBGL3(L3_F_MSG, "FSM function F_09F executing");
671 i4b_l3_tx_release_complete(cd, 1);
672 freecd_by_cd(cd);
673 }
674 /*---------------------------------------------------------------------------*
675 * L3 FSM state U9 event setup response ignore from L4
676 *---------------------------------------------------------------------------*/
F_09G(call_desc_t * cd)677 static void F_09G(call_desc_t *cd)
678 {
679 NDBGL3(L3_F_MSG, "FSM function F_09G executing");
680 freecd_by_cd(cd);
681 }
682
683 /*---------------------------------------------------------------------------*
684 * L3 FSM state U11 event RELEASE from L2
685 *---------------------------------------------------------------------------*/
F_11J(call_desc_t * cd)686 static void F_11J(call_desc_t *cd)
687 {
688 NDBGL3(L3_F_MSG, "FSM function F_11J executing");
689 T305_stop(cd);
690 i4b_l3_tx_release_complete(cd, 0);
691 i4b_l4_disconnect_ind(cd);
692 freecd_by_cd(cd);
693 }
694
695 /*---------------------------------------------------------------------------*
696 * L3 FSM state U11 event DISCONNECT from L2
697 *---------------------------------------------------------------------------*/
F_11Q(call_desc_t * cd)698 static void F_11Q(call_desc_t *cd)
699 {
700 NDBGL3(L3_F_MSG, "FSM function F_11Q executing");
701 T305_stop(cd);
702 i4b_l3_tx_release(cd, 0);
703 cd->T308_first_to = 1;
704 T308_start(cd);
705 }
706
707 /*---------------------------------------------------------------------------*
708 * L3 FSM state U11 event T305 timeout
709 *---------------------------------------------------------------------------*/
F_11V(call_desc_t * cd)710 static void F_11V(call_desc_t *cd)
711 {
712 NDBGL3(L3_F_MSG, "FSM function F_11V executing");
713 cd->cause_out = 102;
714 i4b_l3_tx_release(cd, 1);
715 cd->T308_first_to = 1;
716 T308_start(cd);
717 }
718
719 /*---------------------------------------------------------------------------*
720 * L3 FSM state U12 event release req from L4
721 *---------------------------------------------------------------------------*/
F_12C(call_desc_t * cd)722 static void F_12C(call_desc_t *cd)
723 {
724 NDBGL3(L3_F_MSG, "FSM function F_12C executing");
725 i4b_l3_tx_release(cd, 1);
726 cd->T308_first_to = 1;
727 T308_start(cd);
728 }
729
730 /*---------------------------------------------------------------------------*
731 * L3 FSM state U12 event RELEASE from L2
732 *---------------------------------------------------------------------------*/
F_12J(call_desc_t * cd)733 static void F_12J(call_desc_t *cd)
734 {
735 NDBGL3(L3_F_MSG, "FSM function F_12J executing");
736 i4b_l3_tx_release_complete(cd, 0);
737 i4b_l4_disconnect_ind(cd);
738 freecd_by_cd(cd);
739 }
740
741 /*---------------------------------------------------------------------------*
742 * L3 FSM state U19 event STATUS from L2
743 *---------------------------------------------------------------------------*/
F_19I(call_desc_t * cd)744 static void F_19I(call_desc_t *cd)
745 {
746 NDBGL3(L3_F_MSG, "FSM function F_19I executing");
747
748 if(cd->call_state == 0)
749 {
750 i4b_l4_status_ind(cd);
751 freecd_by_cd(cd);
752 cd->Q931state = ST_U0;
753 }
754 else
755 {
756 cd->Q931state = ST_U19;
757 }
758 }
759
760 /*---------------------------------------------------------------------------*
761 * L3 FSM state U19 event RELEASE from L2
762 *---------------------------------------------------------------------------*/
F_19J(call_desc_t * cd)763 static void F_19J(call_desc_t *cd)
764 {
765 NDBGL3(L3_F_MSG, "FSM function F_19J executing");
766 T308_stop(cd);
767 i4b_l4_disconnect_ind(cd);
768 freecd_by_cd(cd);
769 }
770
771 /*---------------------------------------------------------------------------*
772 * L3 FSM state U19 event RELEASE COMPLETE from L2
773 *---------------------------------------------------------------------------*/
F_19K(call_desc_t * cd)774 static void F_19K(call_desc_t *cd)
775 {
776 NDBGL3(L3_F_MSG, "FSM function F_19K executing");
777 T308_stop(cd);
778 i4b_l4_disconnect_ind(cd);
779 freecd_by_cd(cd);
780 }
781
782 /*---------------------------------------------------------------------------*
783 * L3 FSM state U19 event T308 timeout
784 *---------------------------------------------------------------------------*/
F_19W(call_desc_t * cd)785 static void F_19W(call_desc_t *cd)
786 {
787 NDBGL3(L3_F_MSG, "FSM function F_19W executing");
788 if(cd->T308_first_to == 0)
789 {
790 cd->T308_first_to = 1;
791 i4b_l3_tx_release(cd, 0);
792 T308_start(cd);
793 cd->Q931state = ST_U19;
794 }
795 else
796 {
797 cd->T308_first_to = 0;
798 i4b_l4_disconnect_ind(cd);
799 freecd_by_cd(cd);
800 cd->Q931state = ST_U0;
801 }
802 }
803
804 /*---------------------------------------------------------------------------*
805 * L3 FSM routine no change no action
806 *---------------------------------------------------------------------------*/
F_NCNA(call_desc_t * cd)807 static void F_NCNA(call_desc_t *cd)
808 {
809 }
810
811 /*---------------------------------------------------------------------------*
812 * L3 FSM any state event STATUS ENQ from L2
813 *---------------------------------------------------------------------------*/
F_STENQ(call_desc_t * cd)814 static void F_STENQ(call_desc_t *cd)
815 {
816 NDBGL3(L3_F_MSG, "FSM function F_STENQ executing");
817 i4b_l3_tx_status(cd, CAUSE_Q850_STENQRSP); /* 30, resonse to stat enq */
818 }
819
820 /*---------------------------------------------------------------------------*
821 * L3 FSM any state except 0 & 19 event STATUS from L2
822 *---------------------------------------------------------------------------*/
F_STAT(call_desc_t * cd)823 static void F_STAT(call_desc_t *cd)
824 {
825 NDBGL3(L3_F_MSG, "FSM function F_STAT executing");
826 if(cd->call_state == 0)
827 {
828 i4b_l4_status_ind(cd);
829 cd->Q931state = ST_U0;
830 freecd_by_cd(cd);
831 }
832 else
833 {
834 /* XXX !!!!!!!!!!!!!!!!!! */
835
836 i4b_l4_status_ind(cd);
837 cd->cause_out = 101; /* message not compatible with call state */
838 i4b_l3_tx_disconnect(cd);
839 T305_start(cd);
840 cd->Q931state = ST_U11;
841 }
842 }
843
844 /*---------------------------------------------------------------------------*
845 * L3 FSM some states event INFORMATION from L2
846 *---------------------------------------------------------------------------*/
F_INFO(call_desc_t * cd)847 static void F_INFO(call_desc_t *cd)
848 {
849 NDBGL3(L3_F_MSG, "FSM function F_INFO executing");
850 i4b_l4_info_ind(cd);
851 /* remain in current state */
852 }
853
854 /*---------------------------------------------------------------------------*
855 * L3 FSM some states event RELEASE COMPLETE from L2
856 *---------------------------------------------------------------------------*/
F_RELCP(call_desc_t * cd)857 static void F_RELCP(call_desc_t *cd)
858 {
859 NDBGL3(L3_F_MSG, "FSM function F_RELCP executing");
860 i4b_l3_stop_all_timers(cd);
861 i4b_l4_disconnect_ind(cd);
862 freecd_by_cd(cd);
863 }
864
865 /*---------------------------------------------------------------------------*
866 * L3 FSM some states event RELEASE from L2
867 *---------------------------------------------------------------------------*/
F_REL(call_desc_t * cd)868 static void F_REL(call_desc_t *cd)
869 {
870 NDBGL3(L3_F_MSG, "FSM function F_REL executing");
871 i4b_l3_stop_all_timers(cd);
872 i4b_l3_tx_release_complete(cd, 0);
873 i4b_l4_disconnect_ind(cd);
874 freecd_by_cd(cd);
875 }
876
877 /*---------------------------------------------------------------------------*
878 * L3 FSM some states event DISCONNECT from L2
879 *---------------------------------------------------------------------------*/
F_DISC(call_desc_t * cd)880 static void F_DISC(call_desc_t *cd)
881 {
882 NDBGL3(L3_F_MSG, "FSM function F_DISC executing");
883 i4b_l3_stop_all_timers(cd);
884
885 /*
886 * no disconnect ind to L4, no jump to state U12
887 * instead we issue a RELEASE and jump to U19
888 */
889
890 i4b_l3_tx_release(cd, 0);
891 cd->T308_first_to = 1;
892 T308_start(cd);
893 cd->Q931state = ST_U19;
894 }
895
896 /*---------------------------------------------------------------------------*
897 * L3 FSM some states event disconnect request from L4
898 *---------------------------------------------------------------------------*/
F_DCRQ(call_desc_t * cd)899 static void F_DCRQ(call_desc_t *cd)
900 {
901 NDBGL3(L3_F_MSG, "FSM function F_DCRQ executing");
902
903 /* stop T310 in case this is the result of an incoming call for a */
904 /* calledback connection */
905
906 if(cd->T310 == TIMER_ACTIVE)
907 T310_stop(cd);
908
909 /* cause from L4 */
910 i4b_l3_tx_disconnect(cd);
911 T305_start(cd);
912 cd->Q931state = ST_U11;
913 }
914
915 /*---------------------------------------------------------------------------*
916 * L3 FSM any state except 0 event unexpected message from L2
917 *---------------------------------------------------------------------------*/
F_UEM(call_desc_t * cd)918 static void F_UEM(call_desc_t *cd)
919 {
920 NDBGL3(L3_F_ERR, "FSM function F_UEM executing, state = %s", print_l3state(cd));
921 i4b_l3_tx_status(cd, CAUSE_Q850_MSGNCWCS); /* 101, message not compatible with call state */
922 }
923
924 /*---------------------------------------------------------------------------*
925 * L3 FSM any state except 0 event SETUP from L2
926 *---------------------------------------------------------------------------*/
F_SIGN(call_desc_t * cd)927 static void F_SIGN(call_desc_t *cd)
928 {
929 NDBGL3(L3_F_ERR, "FSM function F_SIGN executing");
930
931 /* XXX */ /* freecd_by_cd(cd); ?????????? XXX */
932 }
933
934 /*---------------------------------------------------------------------------*
935 * L3 FSM relevant states event DL ESTABLISH IND from L2
936 *---------------------------------------------------------------------------*/
F_DLEI(call_desc_t * cd)937 static void F_DLEI(call_desc_t *cd)
938 {
939 NDBGL3(L3_F_MSG, "FSM function F_DLEI executing");
940
941 /* XXX */
942
943 /* remain in current state */
944 }
945
946 /*---------------------------------------------------------------------------*
947 * L3 FSM any state event illegal event occurred
948 *---------------------------------------------------------------------------*/
F_ILL(call_desc_t * cd)949 static void F_ILL(call_desc_t *cd)
950 {
951 NDBGL3(L3_F_MSG, "FSM function F_ILL executing");
952 }
953
954 /*---------------------------------------------------------------------------*
955 * L3 FSM any state event T309 timeout
956 *---------------------------------------------------------------------------*/
F_309TO(call_desc_t * cd)957 static void F_309TO(call_desc_t *cd)
958 {
959 NDBGL3(L3_F_ERR, "FSM function F_309TO executing");
960
961 /* XXX */
962
963 #ifdef NOTDEF
964 i4b_l4_dl_fail_ind(cd);
965 #endif
966
967 freecd_by_cd(cd);
968 }
969
970 /*---------------------------------------------------------------------------*
971 * L3 FSM any state event FACILITY message received
972 *---------------------------------------------------------------------------*/
F_FCTY(call_desc_t * cd)973 static void F_FCTY(call_desc_t *cd)
974 {
975 NDBGL3(L3_F_MSG, "FSM function F_FCTY executing");
976 /* ST_SUSE, no change in state ! */
977 }
978
979 /*---------------------------------------------------------------------------*
980 * L3 FSM state ST_OW event DL ESTABLISH CONF from L2
981 *---------------------------------------------------------------------------*/
F_DECF1(call_desc_t * cd)982 static void F_DECF1(call_desc_t *cd)
983 {
984 NDBGL3(L3_F_MSG, "FSM function F_DECF1 executing");
985 i4b_l3_tx_setup(cd);
986 }
987
988 /*---------------------------------------------------------------------------*
989 * L3 FSM state ST_IWA event DL ESTABLISH CONF from L2
990 *---------------------------------------------------------------------------*/
F_DECF2(call_desc_t * cd)991 static void F_DECF2(call_desc_t *cd)
992 {
993 NDBGL3(L3_F_MSG, "FSM function F_DECF2 executing");
994 i4b_l3_tx_connect(cd);
995 }
996
997 /*---------------------------------------------------------------------------*
998 * L3 FSM state ST_IWR event DL ESTABLISH CONF from L2
999 *---------------------------------------------------------------------------*/
F_DECF3(call_desc_t * cd)1000 static void F_DECF3(call_desc_t *cd)
1001 {
1002 NDBGL3(L3_F_MSG, "FSM function F_DECF3 executing");
1003 i4b_l3_tx_release_complete(cd, 1);
1004 freecd_by_cd(cd);
1005 }
1006
1007 /*---------------------------------------------------------------------------*
1008 * L3 FSM state ST_IWL event DL ESTABLISH CONF from L2
1009 *---------------------------------------------------------------------------*/
F_DECF4(call_desc_t * cd)1010 static void F_DECF4(call_desc_t *cd)
1011 {
1012 NDBGL3(L3_F_MSG, "FSM function F_DECF4 executing");
1013 i4b_l3_tx_alert(cd);
1014 }
1015
1016
1017 /*---------------------------------------------------------------------------*
1018 * L3 FSM any state event DL ESTABLISH CONF from L2
1019 *---------------------------------------------------------------------------*/
F_DECF(call_desc_t * cd)1020 static void F_DECF(call_desc_t *cd)
1021 {
1022 NDBGL3(L3_F_MSG, "FSM function F_DECF executing");
1023 T309_stop(cd);
1024 i4b_l3_tx_status(cd, CAUSE_Q850_NORMUNSP); /* 31, normal unspecified */
1025 }
1026
1027 /*---------------------------------------------------------------------------*
1028 * L3 FSM any state except U10 event DL RELEASE IND from L2
1029 *---------------------------------------------------------------------------*/
F_DLRI(call_desc_t * cd)1030 static void F_DLRI(call_desc_t *cd)
1031 {
1032 NDBGL3(L3_F_MSG, "FSM function F_DLRI executing");
1033 i4b_l3_stop_all_timers(cd);
1034 i4b_l4_disconnect_ind(cd);
1035 freecd_by_cd(cd);
1036 }
1037
1038 /*---------------------------------------------------------------------------*
1039 * L3 FSM state U10 event DL RELEASE IND from L2
1040 *---------------------------------------------------------------------------*/
F_DLRIA(call_desc_t * cd)1041 static void F_DLRIA(call_desc_t *cd)
1042 {
1043 struct l2_softc * l2sc = (l2_softc_t*)cd->l3drv->l1_token;
1044 NDBGL3(L3_F_MSG, "FSM function F_DLRIA executing");
1045
1046 if(cd->T309 == TIMER_IDLE)
1047 T309_start(cd);
1048
1049 i4b_dl_establish_req(l2sc, l2sc->drv);
1050 }
1051
1052 #endif /* NI4BQ931 > 0 */
1053