/* * 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 1.14 2006/11/16 01:33:49 christos Exp $ * * $FreeBSD$ * * last edit-date: [Fri Jan 5 11:33:47 2001] * *---------------------------------------------------------------------------*/ #include __KERNEL_RCSID(0, "$NetBSD: i4b_l3fsm.c,v 1.14 2006/11/16 01:33:49 christos Exp $"); #ifdef __FreeBSD__ #include "i4bq931.h" #else #define NI4BQ931 1 #endif #if NI4BQ931 > 0 #include #include #include #include #include #include #if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000 #include #endif #ifdef __FreeBSD__ #include #include #include #else #include #include #include #endif #include #include #include #include #include #include #include #include #include #include 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 const 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 const 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"); currstate = cd->Q931state; if(currstate > N_STATES) panic("i4b_l3fsm.c: currstate > N_STATES"); newstate = l3state_tab[event][currstate].newstate; if(newstate > N_STATES) panic("i4b_l3fsm.c: newstate > N_STATES"); 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 *---------------------------------------------------------------------------*/ const char *print_l3state(call_desc_t *cd) { return(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 = (l2_softc_t*)cd->l3drv->l1_token; i4b_dl_establish_req(l2sc, l2sc->drv); 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 * preceding 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 = (l2_softc_t*)cd->l3drv->l1_token; i4b_dl_establish_req(l2sc, l2sc->drv); 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 = (l2_softc_t*)cd->l3drv->l1_token; i4b_dl_establish_req(l2sc, l2sc->drv); 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 = (l2_softc_t*)cd->l3drv->l1_token; i4b_dl_establish_req(l2sc, l2sc->drv); 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"); (void)cd; /* 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 occurred *---------------------------------------------------------------------------*/ 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 = (l2_softc_t*)cd->l3drv->l1_token; NDBGL3(L3_F_MSG, "FSM function F_DLRIA executing"); if(cd->T309 == TIMER_IDLE) T309_start(cd); i4b_dl_establish_req(l2sc, l2sc->drv); } #endif /* NI4BQ931 > 0 */