FreeBSD/Linux Kernel Cross Reference
sys/netisdn/i4b_l3timer.c

     /*
      * 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_l3timer.c - timer and timeout handling for layer 3
     *      ------------------------------------------------------
     *
     *      $Id: i4b_l3timer.c,v 1.5 2005/02/26 22:39:49 perry Exp $
     *
     * $FreeBSD$
     *
     *      last edit-date: [Fri Jan  5 11:33:47 2001]
     *
     *---------------------------------------------------------------------------*/
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: i4b_l3timer.c,v 1.5 2005/02/26 22:39:49 perry Exp $");
    
    #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>
    #else
    #include <netisdn/i4b_debug.h>
    #include <netisdn/i4b_ioctl.h>
    #endif
    
    #include <netisdn/i4b_global.h>
    #include <netisdn/i4b_isdnq931.h>
    #include <netisdn/i4b_l3l4.h>
    #include <netisdn/i4b_mbuf.h>
    
    #include <netisdn/i4b_l3.h>
    #include <netisdn/i4b_l3fsm.h>
    #include <netisdn/i4b_q931.h>
    
    #include <netisdn/i4b_l4.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)
   {
           int s;
           s = splnet();
   
           if(cd->T303 != TIMER_IDLE)
           {
                   STOP_TIMER(cd->T303_callout, T303_timeout, cd);
                   cd->T303 = TIMER_IDLE;
           }
           splx(s);
           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)
   {
           int s;
           s = splnet();
   
           if(cd->T305 != TIMER_IDLE)
           {
                   STOP_TIMER(cd->T305_callout, T305_timeout, cd);
                   cd->T305 = TIMER_IDLE;
           }
           splx(s);
   
           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)
   {
           int s;
           s = splnet();
   
           if(cd->T308 != TIMER_IDLE)
           {
                   STOP_TIMER(cd->T308_callout, T308_timeout, cd);
                   cd->T308 = TIMER_IDLE;
           }
           splx(s);
   
           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)
   {
           int s;
           s = splnet();
   
           if(cd->T309 != TIMER_IDLE)
           {
                   STOP_TIMER(cd->T309_callout, T309_timeout, cd);
                   cd->T309 = TIMER_IDLE;
           }
           splx(s);
   
           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)
   {
           int s;
           s = splnet();
   
           if(cd->T310 != TIMER_IDLE)
           {
                   STOP_TIMER(cd->T310_callout, T310_timeout, cd);
                   cd->T310 = TIMER_IDLE;
           }
           splx(s);
   
           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)
   {
           int s;
           s = splnet();
   
           if(cd->T313 != TIMER_IDLE)
           {
                   cd->T313 = TIMER_IDLE;
                   STOP_TIMER(cd->T313_callout, T313_timeout, cd);
           }
           splx(s);
   
           NDBGL3(L3_T_MSG, "cr = %d", cd->cr);
   }
   
   #endif /* NI4BQ931 > 0 */
   

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