sys/netisdn/i4b_lme.c

   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 1.5.8.5 2005/11/10 14:11:36 skrll 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 */