FreeBSD-5.3/sys/i4b/layer3/i4b_l3timer.c
/*
* Copyright (c) 1997, 2002 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_l3timer.c - timer and timeout handling for layer 3
* ------------------------------------------------------
* last edit-date: [Sat Mar 9 19:35:31 2002]
*
*---------------------------------------------------------------------------*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/i4b/layer3/i4b_l3timer.c,v 1.12 2003/06/10 23:59:34 obrien Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#include <i4b/include/i4b_global.h>
#include <i4b/include/i4b_l3l4.h>
#include <i4b/layer3/i4b_l3.h>
#include <i4b/layer3/i4b_l3fsm.h>
/*---------------------------------------------------------------------------*
* stop all layer 3 timers
*---------------------------------------------------------------------------*/
void i4b_l3_stop_all_timers(call_desc_t *cd)
{
T303_stop(cd);
T305_stop(cd);
T308_stop(cd);
T309_stop(cd);
T310_stop(cd);
T313_stop(cd);
}
/*---------------------------------------------------------------------------*
* timer T303 timeout function
*---------------------------------------------------------------------------*/
static void
T303_timeout(call_desc_t *cd)
{
NDBGL3(L3_T_ERR, "SETUP not answered, cr = %d", cd->cr);
next_l3state(cd, EV_T303EXP);
}
/*---------------------------------------------------------------------------*
* timer T303 start
*---------------------------------------------------------------------------*/
void
T303_start(call_desc_t *cd)
{
if (cd->T303 == TIMER_ACTIVE)
return;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
cd->T303 = TIMER_ACTIVE;
START_TIMER(cd->T303_callout, T303_timeout, cd, T303VAL);
}
/*---------------------------------------------------------------------------*
* timer T303 stop
*---------------------------------------------------------------------------*/
void
T303_stop(call_desc_t *cd)
{
CRIT_VAR;
CRIT_BEG;
if(cd->T303 != TIMER_IDLE)
{
STOP_TIMER(cd->T303_callout, T303_timeout, cd);
cd->T303 = TIMER_IDLE;
}
CRIT_END;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
}
/*---------------------------------------------------------------------------*
* timer T305 timeout function
*---------------------------------------------------------------------------*/
static void
T305_timeout(call_desc_t *cd)
{
NDBGL3(L3_T_ERR, "DISC not answered, cr = %d", cd->cr);
next_l3state(cd, EV_T305EXP);
}
/*---------------------------------------------------------------------------*
* timer T305 start
*---------------------------------------------------------------------------*/
void
T305_start(call_desc_t *cd)
{
if (cd->T305 == TIMER_ACTIVE)
return;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
cd->T305 = TIMER_ACTIVE;
START_TIMER(cd->T305_callout, T305_timeout, cd, T305VAL);
}
/*---------------------------------------------------------------------------*
* timer T305 stop
*---------------------------------------------------------------------------*/
void
T305_stop(call_desc_t *cd)
{
CRIT_VAR;
CRIT_BEG;
if(cd->T305 != TIMER_IDLE)
{
STOP_TIMER(cd->T305_callout, T305_timeout, cd);
cd->T305 = TIMER_IDLE;
}
CRIT_END;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
}
/*---------------------------------------------------------------------------*
* timer T308 timeout function
*---------------------------------------------------------------------------*/
static void
T308_timeout(call_desc_t *cd)
{
NDBGL3(L3_T_ERR, "REL not answered, cr = %d", cd->cr);
next_l3state(cd, EV_T308EXP);
}
/*---------------------------------------------------------------------------*
* timer T308 start
*---------------------------------------------------------------------------*/
void
T308_start(call_desc_t *cd)
{
if(cd->T308 == TIMER_ACTIVE)
return;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
cd->T308 = TIMER_ACTIVE;
START_TIMER(cd->T308_callout, T308_timeout, cd, T308VAL);
}
/*---------------------------------------------------------------------------*
* timer T308 stop
*---------------------------------------------------------------------------*/
void
T308_stop(call_desc_t *cd)
{
CRIT_VAR;
CRIT_BEG;
if(cd->T308 != TIMER_IDLE)
{
STOP_TIMER(cd->T308_callout, T308_timeout, cd);
cd->T308 = TIMER_IDLE;
}
CRIT_END;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
}
/*---------------------------------------------------------------------------*
* timer T309 timeout function
*---------------------------------------------------------------------------*/
static void
T309_timeout(call_desc_t *cd)
{
NDBGL3(L3_T_ERR, "datalink not reconnected, cr = %d", cd->cr);
next_l3state(cd, EV_T309EXP);
}
/*---------------------------------------------------------------------------*
* timer T309 start
*---------------------------------------------------------------------------*/
void
T309_start(call_desc_t *cd)
{
if (cd->T309 == TIMER_ACTIVE)
return;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
cd->T309 = TIMER_ACTIVE;
START_TIMER(cd->T309_callout, T309_timeout, cd, T309VAL);
}
/*---------------------------------------------------------------------------*
* timer T309 stop
*---------------------------------------------------------------------------*/
void
T309_stop(call_desc_t *cd)
{
CRIT_VAR;
CRIT_BEG;
if(cd->T309 != TIMER_IDLE)
{
STOP_TIMER(cd->T309_callout, T309_timeout, cd);
cd->T309 = TIMER_IDLE;
}
CRIT_END;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
}
/*---------------------------------------------------------------------------*
* timer T310 timeout function
*---------------------------------------------------------------------------*/
static void
T310_timeout(call_desc_t *cd)
{
NDBGL3(L3_T_ERR, "CALL PROC timeout, cr = %d", cd->cr);
next_l3state(cd, EV_T310EXP);
}
/*---------------------------------------------------------------------------*
* timer T310 start
*---------------------------------------------------------------------------*/
void
T310_start(call_desc_t *cd)
{
if (cd->T310 == TIMER_ACTIVE)
return;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
cd->T310 = TIMER_ACTIVE;
START_TIMER(cd->T310_callout, T310_timeout, cd, T310VAL);
}
/*---------------------------------------------------------------------------*
* timer T310 stop
*---------------------------------------------------------------------------*/
void
T310_stop(call_desc_t *cd)
{
CRIT_VAR;
CRIT_BEG;
if(cd->T310 != TIMER_IDLE)
{
STOP_TIMER(cd->T310_callout, T310_timeout, cd);
cd->T310 = TIMER_IDLE;
}
CRIT_END;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
}
/*---------------------------------------------------------------------------*
* timer T313 timeout function
*---------------------------------------------------------------------------*/
static void
T313_timeout(call_desc_t *cd)
{
NDBGL3(L3_T_ERR, "CONN ACK not received, cr = %d", cd->cr);
next_l3state(cd, EV_T313EXP);
}
/*---------------------------------------------------------------------------*
* timer T313 start
*---------------------------------------------------------------------------*/
void
T313_start(call_desc_t *cd)
{
if (cd->T313 == TIMER_ACTIVE)
return;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
cd->T313 = TIMER_ACTIVE;
START_TIMER(cd->T313_callout, T313_timeout, cd, T313VAL);
}
/*---------------------------------------------------------------------------*
* timer T313 stop
*---------------------------------------------------------------------------*/
void
T313_stop(call_desc_t *cd)
{
CRIT_VAR;
CRIT_BEG;
if(cd->T313 != TIMER_IDLE)
{
cd->T313 = TIMER_IDLE;
STOP_TIMER(cd->T313_callout, T313_timeout, cd);
}
CRIT_END;
NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
}