i4b_lme.c

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    1 /*
    2  * Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  *
   25  *---------------------------------------------------------------------------
   26  *
   27  *      i4b_lme.c - layer management entity
   28  *      -------------------------------------
   29  *
   30  *      $Id: i4b_lme.c,v 1.9 2005/12/11 12:25:06 christos Exp $
   31  *
   32  * $FreeBSD$
   33  *
   34  *      last edit-date: [Fri Jan  5 11:33:47 2001]
   35  *
   36  *---------------------------------------------------------------------------*/
   37 
   38 #include <sys/cdefs.h>
   39 __KERNEL_RCSID(0, "$NetBSD: i4b_lme.c,v 1.9 2005/12/11 12:25:06 christos Exp $");
   40 
   41 #ifdef __FreeBSD__
   42 #include "i4bq921.h"
   43 #else
   44 #define NI4BQ921        1
   45 #endif
   46 #if NI4BQ921 > 0
   47 
   48 #include <sys/param.h>
   49 #include <sys/kernel.h>
   50 #include <sys/systm.h>
   51 #include <sys/mbuf.h>
   52 #include <sys/socket.h>
   53 #include <net/if.h>
   54 
   55 #if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000
   56 #include <sys/callout.h>
   57 #endif
   58 
   59 #ifdef __FreeBSD__
   60 #include <machine/i4b_debug.h>
   61 #include <machine/i4b_ioctl.h>
   62 #else
   63 #include <netisdn/i4b_debug.h>
   64 #include <netisdn/i4b_ioctl.h>
   65 #endif
   66 
   67 #include <netisdn/i4b_l2.h>
   68 #include <netisdn/i4b_l1l2.h>
   69 #include <netisdn/i4b_isdnq931.h>
   70 #include <netisdn/i4b_mbuf.h>
   71 #include <netisdn/i4b_l2fsm.h>
   72 #include <netisdn/i4b_l3l4.h>
   73 
   74 /*---------------------------------------------------------------------------*
   75  *      mdl assign indication handler
   76  *---------------------------------------------------------------------------*/
   77 void
   78 i4b_mdl_assign_ind(l2_softc_t *l2sc)
   79 {
   80         NDBGL2(L2_PRIM, "isdnif %d", l2sc->drv->isdnif);
   81 
   82         i4b_l1_activate(l2sc);
   83 
   84         if(l2sc->tei_valid == TEI_VALID)
   85         {
   86                 l2sc->T202func = (void(*)(void*))i4b_tei_verify;
   87                 l2sc->N202 = N202DEF;
   88                 i4b_tei_verify(l2sc);
   89         }
   90         else
   91         {
   92                 l2sc->T202func = (void(*)(void*))i4b_tei_assign;
   93                 l2sc->N202 = N202DEF;
   94                 i4b_tei_assign(l2sc);
   95         }
   96 }
   97 
   98 /*---------------------------------------------------------------------------*
   99  *      i4b_mdl_error_ind handler (Q.921 01/94 pp 156)
  100  *---------------------------------------------------------------------------*/
  101 void
  102 i4b_mdl_error_ind(l2_softc_t *l2sc, const char *where, int errorcode)
  103 {
  104 #if DO_I4B_DEBUG
  105         static const char *error_text[] = {
  106                 "MDL_ERR_A: rx'd unsolicited response - supervisory (F=1)",
  107                 "MDL_ERR_B: rx'd unsolicited response - DM (F=1)",
  108                 "MDL_ERR_C: rx'd unsolicited response - UA (F=1)",
  109                 "MDL_ERR_D: rx'd unsolicited response - UA (F=0)",
  110                 "MDL_ERR_E: rx'd unsolicited response - DM (F=0)",
  111                 "MDL_ERR_F: peer initiated re-establishment - SABME",
  112                 "MDL_ERR_G: unsuccessful transmission N200times - SABME",
  113                 "MDL_ERR_H: unsuccessful transmission N200times - DIS",
  114                 "MDL_ERR_I: unsuccessful transmission N200times - Status ENQ",
  115                 "MDL_ERR_J: other error - N(R) error",
  116                 "MDL_ERR_K: other error - rx'd FRMR response",
  117                 "MDL_ERR_L: other error - rx'd undefined frame",
  118                 "MDL_ERR_M: other error - receipt of I field not permitted",
  119                 "MDL_ERR_N: other error - rx'd frame with wrong size",
  120                 "MDL_ERR_O: other error - N201 error",
  121                 "MDL_ERR_MAX: i4b_mdl_error_ind called with wrong parameter!!!"
  122         };
  123 #endif
  124 
  125         if(errorcode > MDL_ERR_MAX)
  126                 errorcode = MDL_ERR_MAX;
  127 
  128         NDBGL2(L2_ERROR, "isdnif = %d, location = %s",
  129             l2sc->drv->isdnif, where);
  130         NDBGL2(L2_ERROR, "error = %s", error_text[errorcode]);
  131 
  132         switch(errorcode)
  133         {
  134                 case MDL_ERR_A:
  135                 case MDL_ERR_B:
  136                         break;
  137 
  138                 case MDL_ERR_C:
  139                 case MDL_ERR_D:
  140                         i4b_tei_verify(l2sc);
  141                         break;
  142 
  143                 case MDL_ERR_E:
  144                 case MDL_ERR_F:
  145                         break;
  146 
  147                 case MDL_ERR_G:
  148                 case MDL_ERR_H:
  149                         i4b_tei_verify(l2sc);
  150                         break;
  151 
  152                 case MDL_ERR_I:
  153                 case MDL_ERR_J:
  154                 case MDL_ERR_K:
  155                 case MDL_ERR_L:
  156                 case MDL_ERR_M:
  157                 case MDL_ERR_N:
  158                 case MDL_ERR_O:
  159                         break;
  160 
  161                 default:
  162                         break;
  163         }
  164 }
  165 
  166 #endif /* NI4BQ921 > 0 */

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FreeBSD/Linux Kernel Cross Reference sys/netisdn/i4b_lme.c

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sys/netisdn/i4b_lme.c