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NetBSD/sys/netisdn/i4b_l3fsm.c
martin 5171d409a5 First step to cleanup the hardware driver <-> upper layers interface. 
This now provides slightly more functionality than the FreeBSD layer1-newbus
interface. It was meant to be a simple change to one header and a few
c files, but the change rippled all through various stuff.

To prevent a change to the kernel<->userland interface right now the kernel
is now lying about card types to userland (but who cares). This will be fixed
when the userland interface changes, after layer 3 <-> layer 4 has been
fixed.

Functional changes:

Provide a clean interface for hardware drivers to attach to the upper
layers. This will need another small change in the B-channel handling
when a similar change to the layer 3 <-> layer 4 interface happens.

Avoid passing indices into global arrays of pointers around, instead pass
the pointers itself. Don't code hardware driver types by predefined magic
numbers (think LKM). Prepare for detachable drivers (think pcmcia).

While there remove some sets of function pointers always pointing to the
same function (meant to be the configurable set of D channel protocol
handlers). It is unlikely another supported D-channel protocol will fit into
that (maximal layer interface) abstraction. When we get support for another
protocol, we will need to come up with a workable interface. Besides, the
old implementation was, uhm, strange.
2001-03-24 12:40:29 +00:00

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/*
* Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* i4b_l3fsm.c - layer 3 FSM
* -------------------------
*
* $Id: i4b_l3fsm.c,v 1.3 2001/03/24 12:40:32 martin Exp $
*
* $FreeBSD$
*
* last edit-date: [Fri Jan 5 11:33:47 2001]
*
*---------------------------------------------------------------------------*/
#ifdef __FreeBSD__
#include "i4bq931.h"
#else
#define NI4BQ931 1
#endif
#if NI4BQ931 > 0
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000
#include <sys/callout.h>
#endif
#ifdef __FreeBSD__
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#include <machine/i4b_cause.h>
#else
#include <netisdn/i4b_debug.h>
#include <netisdn/i4b_ioctl.h>
#include <netisdn/i4b_cause.h>
#endif
#include <netisdn/i4b_isdnq931.h>
#include <netisdn/i4b_l1l2.h>
#include <netisdn/i4b_l3l4.h>
#include <netisdn/i4b_mbuf.h>
#include <netisdn/i4b_global.h>
#include <netisdn/i4b_l2.h>
#include <netisdn/i4b_l3.h>
#include <netisdn/i4b_l3fsm.h>
#include <netisdn/i4b_q931.h>
#include <netisdn/i4b_l4.h>
static void F_00A(call_desc_t *cd), F_00H(call_desc_t *cd), F_00I(call_desc_t *cd);
static void F_00J(call_desc_t *cd);
static void F_01B(call_desc_t *cd), F_01K(call_desc_t *cd), F_01L(call_desc_t *cd);
static void F_01M(call_desc_t *cd), F_01N(call_desc_t *cd), F_01U(call_desc_t *cd);
static void F_01O(call_desc_t *cd);
static void F_03C(call_desc_t *cd), F_03N(call_desc_t *cd), F_03O(call_desc_t *cd);
static void F_03P(call_desc_t *cd), F_03Y(call_desc_t *cd);
static void F_04O(call_desc_t *cd);
static void F_06D(call_desc_t *cd), F_06E(call_desc_t *cd), F_06F(call_desc_t *cd);
static void F_06G(call_desc_t *cd), F_06J(call_desc_t *cd), F_06Q(call_desc_t *cd);
static void F_07E(call_desc_t *cd), F_07F(call_desc_t *cd), F_07G(call_desc_t *cd);
static void F_08R(call_desc_t *cd), F_08Z(call_desc_t *cd);
static void F_09D(call_desc_t *cd), F_09E(call_desc_t *cd), F_09F(call_desc_t *cd);
static void F_09G(call_desc_t *cd);
static void F_11J(call_desc_t *cd), F_11Q(call_desc_t *cd), F_11V(call_desc_t *cd);
static void F_12C(call_desc_t *cd), F_12J(call_desc_t *cd);
static void F_19I(call_desc_t *cd), F_19J(call_desc_t *cd), F_19K(call_desc_t *cd);
static void F_19W(call_desc_t *cd);
static void F_NCNA(call_desc_t *cd), F_STENQ(call_desc_t *cd), F_STAT(call_desc_t *cd);
static void F_INFO(call_desc_t *cd), F_RELCP(call_desc_t *cd), F_REL(call_desc_t *cd);
static void F_DISC(call_desc_t *cd), F_DCRQ(call_desc_t *cd), F_UEM(call_desc_t *cd);
static void F_SIGN(call_desc_t *cd), F_DLEI(call_desc_t *cd), F_ILL(call_desc_t *cd);
static void F_309TO(call_desc_t *cd), F_DECF(call_desc_t *cd), F_FCTY(call_desc_t *cd);
static void F_DECF1(call_desc_t *cd), F_DECF2(call_desc_t *cd), F_DECF3(call_desc_t *cd);
static void F_DLRI(call_desc_t *cd), F_DLRIA(call_desc_t *cd), F_DECF4(call_desc_t *cd);
#if DO_I4B_DEBUG
static char *l3state_text[N_STATES] = {
"ST_U0 - Null",
"ST_U1 - Out Init",
"ST_U3 - Out Proc",
"ST_U4 - Out Delv",
"ST_U6 - In Pres",
"ST_U7 - In Rxd",
"ST_U8 - In ConReq",
"ST_U9 - In Proc",
"ST_U10 - Active",
"ST_U11 - Disc Req",
"ST_U12 - Disc Ind",
"ST_U19 - Rel Req",
"ST_IWA - In Wait EST-Accept",
"ST_IWR - In Wait EST-Reject",
"ST_OW - Out Wait EST",
"ST_IWL - In Wait EST-Alert",
"ST_SUSE - Subroutine sets state",
"Illegal State"
};
static char *l3event_text[N_EVENTS] = {
"EV_SETUPRQ - L4 SETUP REQ", /* setup request from L4 */
"EV_DISCRQ - L4 DISC REQ", /* disconnect request from L4 */
"EV_RELRQ - L4 REL REQ", /* release request from L4 */
"EV_ALERTRQ - L4 ALERT REQ", /* alerting request from L4 */
"EV_SETACRS - L4 accept RSP", /* setup response accept from l4 */
"EV_SETRJRS - L4 reject RSP", /* setup response reject from l4 */
"EV_SETDCRS - L4 ignore RSP", /* setup response dontcare from l4 */
"EV_SETUP - rxd SETUP", /* incoming SETUP message from L2 */
"EV_STATUS - rxd STATUS", /* incoming STATUS message from L2 */
"EV_RELEASE - rxd REL", /* incoming RELEASE message from L2 */
"EV_RELCOMP - rxd REL COMPL", /* incoming RELEASE COMPLETE from L2 */
"EV_SETUPAK - rxd SETUP ACK", /* incoming SETUP ACK message from L2 */
"EV_CALLPRC - rxd CALL PROC", /* incoming CALL PROCEEDING from L2 */
"EV_ALERT - rxd ALERT", /* incoming ALERT message from L2 */
"EV_CONNECT - rxd CONNECT", /* incoming CONNECT message from L2 */
"EV_PROGIND - rxd PROG IND", /* incoming Progress IND from L2 */
"EV_DISCONN - rxd DISC", /* incoming DISCONNECT message from L2 */
"EV_CONACK - rxd CONN ACK", /* incoming CONNECT ACK message from L2 */
"EV_STATENQ - rxd STAT ENQ", /* incoming STATUS ENQ message from L2 */
"EV_INFO - rxd INFO", /* incoming INFO message from L2 */
"EV_FACILITY - rxd FACILITY", /* incoming FACILITY message */
"EV_T303EXP - T303 timeout", /* Timer T303 expired */
"EV_T305EXP - T305 timeout", /* Timer T305 expired */
"EV_T308EXP - T308 timeout", /* Timer T308 expired */
"EV_T309EXP - T309 timeout", /* Timer T309 expired */
"EV_T310EXP - T310 timeout", /* Timer T310 expired */
"EV_T313EXP - T313 timeout", /* Timer T313 expired */
"EV_DLESTIN - L2 DL_Est_Ind", /* dl establish indication from l2 */
"EV_DLRELIN - L2 DL_Rel_Ind", /* dl release indication from l2 */
"EV_DLESTCF - L2 DL_Est_Cnf", /* dl establish confirm from l2 */
"EV_DLRELCF - L2 DL_Rel_Cnf", /* dl release confirm from l2 */
"EV_ILL - Illegal event!!" /* Illegal */
};
#endif
/*---------------------------------------------------------------------------*
* layer 3 state transition table
*---------------------------------------------------------------------------*/
struct l3state_tab {
void (*func) (call_desc_t *); /* function to execute */
int newstate; /* next state */
} l3state_tab[N_EVENTS][N_STATES] = {
/* 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 */
/* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/* 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 */
/* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/* 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 */
/* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/*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}},
/* 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 */
/* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/*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}},
/*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}},
/*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}},
/*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}},
/*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}}
};
/*---------------------------------------------------------------------------*
* event handler
*---------------------------------------------------------------------------*/
void next_l3state(call_desc_t *cd, int event)
{
int currstate, newstate;
if(event > N_EVENTS)
panic("i4b_l3fsm.c: event > N_EVENTS\n");
currstate = cd->Q931state;
if(currstate > N_STATES)
panic("i4b_l3fsm.c: currstate > N_STATES\n");
newstate = l3state_tab[event][currstate].newstate;
if(newstate > N_STATES)
panic("i4b_l3fsm.c: newstate > N_STATES\n");
NDBGL3(L3_F_MSG, "L3 FSM event [%s]: [%s => %s]",
l3event_text[event],
l3state_text[currstate],
l3state_text[newstate]);
/* execute function */
(*l3state_tab[event][currstate].func)(cd);
if(newstate == ST_ILL)
{
newstate = currstate;
NDBGL3(L3_F_ERR, "FSM illegal state, state = %s, event = %s!",
l3state_text[newstate],
l3event_text[event]);
}
if(newstate != ST_SUSE)
cd->Q931state = newstate;
}
#if DO_I4B_DEBUG
/*---------------------------------------------------------------------------*
* return pointer to current state description
*---------------------------------------------------------------------------*/
char *print_l3state(call_desc_t *cd)
{
return((char *) l3state_text[cd->Q931state]);
}
#endif
/*---------------------------------------------------------------------------*
* L3 FSM state U0 event L4 setup req
*---------------------------------------------------------------------------*/
static void F_00A(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_00A executing");
if(i4b_get_dl_stat(cd) == DL_DOWN)
{
struct l2_softc * l2sc = (struct l2_softc*)isdn_find_l2_by_bri(cd->bri);
i4b_dl_establish_req(l2sc);
cd->Q931state = ST_OW;
}
else
{
i4b_l3_tx_setup(cd);
cd->Q931state = ST_U1;
}
cd->T303_first_to = 1;
T303_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U0 event SETUP from L2
*---------------------------------------------------------------------------*/
static void F_00H(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_00H executing");
i4b_l4_connect_ind(cd); /* tell l4 we have an incoming setup */
}
/*---------------------------------------------------------------------------*
* L3 FSM state U0 event STATUS from L2
*---------------------------------------------------------------------------*/
static void F_00I(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_00I executing");
if(cd->call_state != 0)
{
cd->cause_out = 101;
i4b_l3_tx_release_complete(cd, 1); /* 1 = send cause */
}
cd->Q931state = ST_U0;
}
/*---------------------------------------------------------------------------*
* L3 FSM state U0 event RELEASE from L2
*---------------------------------------------------------------------------*/
static void F_00J(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_00J executing");
i4b_l3_tx_release_complete(cd, 0); /* 0 = don't send cause */
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event disconnect req from L4
*---------------------------------------------------------------------------*/
static void F_01B(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01B executing");
/* cause from L4 */
i4b_l3_tx_disconnect(cd);
T303_stop(cd);
T305_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event RELEASE COMPLETE from L2
*---------------------------------------------------------------------------*/
static void F_01K(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01K executing");
T303_stop(cd);
i4b_l4_disconnect_ind(cd); /* tell l4 we were rejected */
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event SETUP ACK from L2
*---------------------------------------------------------------------------*/
static void F_01L(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01L executing");
T303_stop(cd);
/*
* since this implementation does NOT support overlap sending,
* we react here as if we received a CALL PROCEEDING because
* several PBX's react with a SETUP ACK even if the called
* number is complete AND we sent a SENDING COMPLETE in the
* preceeding SETUP message. (-hm)
*/
T310_start(cd);
i4b_l4_proceeding_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event CALL PROCEEDING from L2
*---------------------------------------------------------------------------*/
static void F_01M(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01M executing");
T303_stop(cd);
T310_start(cd);
i4b_l4_proceeding_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event ALERT from L2 (XXX !)
*---------------------------------------------------------------------------*/
static void F_01N(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01N executing");
T303_stop(cd);
i4b_l4_alert_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event CONNECT from L2 (XXX !)
*---------------------------------------------------------------------------*/
static void F_01O(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01O executing");
T303_stop(cd);
i4b_l3_tx_connect_ack(cd);
i4b_l4_connect_active_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U1 event T303 timeout
*---------------------------------------------------------------------------*/
static void F_01U(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_01U executing");
if(cd->T303_first_to == 1)
{
cd->T303_first_to = 0;
i4b_l3_tx_setup(cd);
T303_start(cd);
cd->Q931state = ST_U1;
}
else
{
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
cd->Q931state = ST_U0;
}
}
/*---------------------------------------------------------------------------*
* L3 FSM state U3 event release req from L4
*---------------------------------------------------------------------------*/
static void F_03C(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_03C executing");
T310_stop(cd);
cd->cause_out = 6;
i4b_l3_tx_release(cd, 1); /* 0 = don't send cause */
cd->T308_first_to = 1;
T308_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U3 event ALERT from L2
*---------------------------------------------------------------------------*/
static void F_03N(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_03N executing");
T310_stop(cd);
i4b_l4_alert_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U3 event CONNECT from L2
*---------------------------------------------------------------------------*/
static void F_03O(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_03O executing");
T310_stop(cd);
i4b_l3_tx_connect_ack(cd); /* CONNECT ACK to network */
i4b_l4_connect_active_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U3 event PROGESS IND from L2
*---------------------------------------------------------------------------*/
static void F_03P(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_03P executing");
T310_stop(cd);
#ifdef NOTDEF
i4b_l4_progress_ind(cd);
#endif
}
/*---------------------------------------------------------------------------*
* L3 FSM state U3 event T310 timeout
*---------------------------------------------------------------------------*/
static void F_03Y(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_03Y executing");
cd->cause_out = 102; /* recovery on timer expiry */
i4b_l3_tx_disconnect(cd);
T305_start(cd);
i4b_l4_disconnect_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U4 event CONNECT from L2
*---------------------------------------------------------------------------*/
static void F_04O(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_04O executing");
i4b_l3_tx_connect_ack(cd); /* CONNECT ACK to network */
i4b_l4_connect_active_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U6 event alert req from L4
*---------------------------------------------------------------------------*/
static void F_06D(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_06D executing");
if(i4b_get_dl_stat(cd) == DL_DOWN)
{
struct l2_softc * l2sc = (struct l2_softc*)isdn_find_l2_by_bri(cd->bri);
i4b_dl_establish_req(l2sc);
cd->Q931state = ST_IWL;
}
else
{
i4b_l3_tx_alert(cd);
cd->Q931state = ST_U7;
}
}
/*---------------------------------------------------------------------------*
* L3 FSM state U6 event incoming setup accept from L4
*---------------------------------------------------------------------------*/
static void F_06E(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_06E executing");
if(i4b_get_dl_stat(cd) == DL_DOWN)
{
struct l2_softc * l2sc = (struct l2_softc*)isdn_find_l2_by_bri(cd->bri);
i4b_dl_establish_req(l2sc);
cd->Q931state = ST_IWA;
}
else
{
i4b_l3_tx_connect(cd);
cd->Q931state = ST_U8;
}
T313_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U6 event incoming setup reject from L4
*---------------------------------------------------------------------------*/
static void F_06F(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_06F executing");
if(i4b_get_dl_stat(cd) == DL_DOWN)
{
struct l2_softc * l2sc = (struct l2_softc*)isdn_find_l2_by_bri(cd->bri);
i4b_dl_establish_req(l2sc);
cd->Q931state = ST_IWR;
}
else
{
int s = splnet();
i4b_l3_tx_release_complete(cd, 1);
cd->Q931state = ST_U0;
freecd_by_cd(cd);
splx(s);
}
}
/*---------------------------------------------------------------------------*
* L3 FSM state U6 event incoming setup ignore from L4
*---------------------------------------------------------------------------*/
static void F_06G(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_06G executing");
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U6 event RELEASE from L2
*---------------------------------------------------------------------------*/
static void F_06J(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_06J executing");
i4b_l3_tx_release_complete(cd, 0);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U6 event DISCONNECT from L2
*---------------------------------------------------------------------------*/
static void F_06Q(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_06Q executing");
i4b_l4_disconnect_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U7 event setup response accept from L4
*---------------------------------------------------------------------------*/
static void F_07E(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_07E executing");
i4b_l3_tx_connect(cd);
T313_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U7 event setup response reject from L4
*---------------------------------------------------------------------------*/
static void F_07F(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_07F executing");
i4b_l3_tx_release_complete(cd, 1);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U7 event setup response ignore from L4
*---------------------------------------------------------------------------*/
static void F_07G(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_07G executing");
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U8 event CONNECT ACK from L2
*---------------------------------------------------------------------------*/
static void F_08R(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_08R executing");
T313_stop(cd);
i4b_l4_connect_active_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U8 event T313 timeout
*---------------------------------------------------------------------------*/
static void F_08Z(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_08Z executing");
cd->cause_out = 102; /* recovery on timer expiry */
i4b_l3_tx_disconnect(cd);
T305_start(cd);
i4b_l4_disconnect_ind(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U9 event alert req from L4
*---------------------------------------------------------------------------*/
static void F_09D(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_09D executing");
i4b_l3_tx_alert(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U9 event setup response accept from L4
*---------------------------------------------------------------------------*/
static void F_09E(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_09E executing");
i4b_l3_tx_connect(cd);
T313_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U9 event setup response reject from L4
*---------------------------------------------------------------------------*/
static void F_09F(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_09F executing");
i4b_l3_tx_release_complete(cd, 1);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U9 event setup response ignore from L4
*---------------------------------------------------------------------------*/
static void F_09G(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_09G executing");
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U11 event RELEASE from L2
*---------------------------------------------------------------------------*/
static void F_11J(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_11J executing");
T305_stop(cd);
i4b_l3_tx_release_complete(cd, 0);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U11 event DISCONNECT from L2
*---------------------------------------------------------------------------*/
static void F_11Q(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_11Q executing");
T305_stop(cd);
i4b_l3_tx_release(cd, 0);
cd->T308_first_to = 1;
T308_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U11 event T305 timeout
*---------------------------------------------------------------------------*/
static void F_11V(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_11V executing");
cd->cause_out = 102;
i4b_l3_tx_release(cd, 1);
cd->T308_first_to = 1;
T308_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U12 event release req from L4
*---------------------------------------------------------------------------*/
static void F_12C(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_12C executing");
i4b_l3_tx_release(cd, 1);
cd->T308_first_to = 1;
T308_start(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U12 event RELEASE from L2
*---------------------------------------------------------------------------*/
static void F_12J(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_12J executing");
i4b_l3_tx_release_complete(cd, 0);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U19 event STATUS from L2
*---------------------------------------------------------------------------*/
static void F_19I(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_19I executing");
if(cd->call_state == 0)
{
i4b_l4_status_ind(cd);
freecd_by_cd(cd);
cd->Q931state = ST_U0;
}
else
{
cd->Q931state = ST_U19;
}
}
/*---------------------------------------------------------------------------*
* L3 FSM state U19 event RELEASE from L2
*---------------------------------------------------------------------------*/
static void F_19J(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_19J executing");
T308_stop(cd);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U19 event RELEASE COMPLETE from L2
*---------------------------------------------------------------------------*/
static void F_19K(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_19K executing");
T308_stop(cd);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U19 event T308 timeout
*---------------------------------------------------------------------------*/
static void F_19W(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_19W executing");
if(cd->T308_first_to == 0)
{
cd->T308_first_to = 1;
i4b_l3_tx_release(cd, 0);
T308_start(cd);
cd->Q931state = ST_U19;
}
else
{
cd->T308_first_to = 0;
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
cd->Q931state = ST_U0;
}
}
/*---------------------------------------------------------------------------*
* L3 FSM routine no change no action
*---------------------------------------------------------------------------*/
static void F_NCNA(call_desc_t *cd)
{
}
/*---------------------------------------------------------------------------*
* L3 FSM any state event STATUS ENQ from L2
*---------------------------------------------------------------------------*/
static void F_STENQ(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_STENQ executing");
i4b_l3_tx_status(cd, CAUSE_Q850_STENQRSP); /* 30, resonse to stat enq */
}
/*---------------------------------------------------------------------------*
* L3 FSM any state except 0 & 19 event STATUS from L2
*---------------------------------------------------------------------------*/
static void F_STAT(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_STAT executing");
if(cd->call_state == 0)
{
i4b_l4_status_ind(cd);
cd->Q931state = ST_U0;
freecd_by_cd(cd);
}
else
{
/* XXX !!!!!!!!!!!!!!!!!! */
i4b_l4_status_ind(cd);
cd->cause_out = 101; /* message not compatible with call state */
i4b_l3_tx_disconnect(cd);
T305_start(cd);
cd->Q931state = ST_U11;
}
}
/*---------------------------------------------------------------------------*
* L3 FSM some states event INFORMATION from L2
*---------------------------------------------------------------------------*/
static void F_INFO(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_INFO executing");
i4b_l4_info_ind(cd);
/* remain in current state */
}
/*---------------------------------------------------------------------------*
* L3 FSM some states event RELEASE COMPLETE from L2
*---------------------------------------------------------------------------*/
static void F_RELCP(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_RELCP executing");
i4b_l3_stop_all_timers(cd);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM some states event RELEASE from L2
*---------------------------------------------------------------------------*/
static void F_REL(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_REL executing");
i4b_l3_stop_all_timers(cd);
i4b_l3_tx_release_complete(cd, 0);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM some states event DISCONNECT from L2
*---------------------------------------------------------------------------*/
static void F_DISC(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DISC executing");
i4b_l3_stop_all_timers(cd);
/*
* no disconnect ind to L4, no jump to state U12
* instead we issue a RELEASE and jump to U19
*/
i4b_l3_tx_release(cd, 0);
cd->T308_first_to = 1;
T308_start(cd);
cd->Q931state = ST_U19;
}
/*---------------------------------------------------------------------------*
* L3 FSM some states event disconnect request from L4
*---------------------------------------------------------------------------*/
static void F_DCRQ(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DCRQ executing");
/* stop T310 in case this is the result of an incoming call for a */
/* calledback connection */
if(cd->T310 == TIMER_ACTIVE)
T310_stop(cd);
/* cause from L4 */
i4b_l3_tx_disconnect(cd);
T305_start(cd);
cd->Q931state = ST_U11;
}
/*---------------------------------------------------------------------------*
* L3 FSM any state except 0 event unexpected message from L2
*---------------------------------------------------------------------------*/
static void F_UEM(call_desc_t *cd)
{
NDBGL3(L3_F_ERR, "FSM function F_UEM executing, state = %s", print_l3state(cd));
i4b_l3_tx_status(cd, CAUSE_Q850_MSGNCWCS); /* 101, message not compatible with call state */
}
/*---------------------------------------------------------------------------*
* L3 FSM any state except 0 event SETUP from L2
*---------------------------------------------------------------------------*/
static void F_SIGN(call_desc_t *cd)
{
NDBGL3(L3_F_ERR, "FSM function F_SIGN executing");
/* XXX */ /* freecd_by_cd(cd); ?????????? XXX */
}
/*---------------------------------------------------------------------------*
* L3 FSM relevant states event DL ESTABLISH IND from L2
*---------------------------------------------------------------------------*/
static void F_DLEI(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DLEI executing");
/* XXX */
/* remain in current state */
}
/*---------------------------------------------------------------------------*
* L3 FSM any state event illegal event occured
*---------------------------------------------------------------------------*/
static void F_ILL(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_ILL executing");
}
/*---------------------------------------------------------------------------*
* L3 FSM any state event T309 timeout
*---------------------------------------------------------------------------*/
static void F_309TO(call_desc_t *cd)
{
NDBGL3(L3_F_ERR, "FSM function F_309TO executing");
/* XXX */
#ifdef NOTDEF
i4b_l4_dl_fail_ind(cd);
#endif
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM any state event FACILITY message received
*---------------------------------------------------------------------------*/
static void F_FCTY(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_FCTY executing");
/* ST_SUSE, no change in state ! */
}
/*---------------------------------------------------------------------------*
* L3 FSM state ST_OW event DL ESTABLISH CONF from L2
*---------------------------------------------------------------------------*/
static void F_DECF1(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DECF1 executing");
i4b_l3_tx_setup(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state ST_IWA event DL ESTABLISH CONF from L2
*---------------------------------------------------------------------------*/
static void F_DECF2(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DECF2 executing");
i4b_l3_tx_connect(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state ST_IWR event DL ESTABLISH CONF from L2
*---------------------------------------------------------------------------*/
static void F_DECF3(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DECF3 executing");
i4b_l3_tx_release_complete(cd, 1);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state ST_IWL event DL ESTABLISH CONF from L2
*---------------------------------------------------------------------------*/
static void F_DECF4(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DECF4 executing");
i4b_l3_tx_alert(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM any state event DL ESTABLISH CONF from L2
*---------------------------------------------------------------------------*/
static void F_DECF(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DECF executing");
T309_stop(cd);
i4b_l3_tx_status(cd, CAUSE_Q850_NORMUNSP); /* 31, normal unspecified */
}
/*---------------------------------------------------------------------------*
* L3 FSM any state except U10 event DL RELEASE IND from L2
*---------------------------------------------------------------------------*/
static void F_DLRI(call_desc_t *cd)
{
NDBGL3(L3_F_MSG, "FSM function F_DLRI executing");
i4b_l3_stop_all_timers(cd);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
/*---------------------------------------------------------------------------*
* L3 FSM state U10 event DL RELEASE IND from L2
*---------------------------------------------------------------------------*/
static void F_DLRIA(call_desc_t *cd)
{
struct l2_softc * l2sc = (struct l2_softc*)isdn_find_l2_by_bri(cd->bri);
NDBGL3(L3_F_MSG, "FSM function F_DLRIA executing");
if(cd->T309 == TIMER_IDLE)
T309_start(cd);
i4b_dl_establish_req(l2sc);
}
#endif /* NI4BQ931 > 0 */
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