161 lines
4.7 KiB
C
161 lines
4.7 KiB
C
/*
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* Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_lme.c - layer management entity
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* -------------------------------------
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*
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* $FreeBSD$
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*
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* last edit-date: [Sun Feb 14 10:31:55 1999]
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*
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*---------------------------------------------------------------------------*/
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#ifdef __FreeBSD__
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#include "i4bq921.h"
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#else
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#define NI4BQ921 1
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#endif
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#if NI4BQ921 > 0
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#include <sys/param.h>
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
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#include <sys/ioccom.h>
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#else
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#include <sys/ioctl.h>
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#endif
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#ifdef __FreeBSD__
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#include <machine/i4b_debug.h>
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#include <machine/i4b_ioctl.h>
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#else
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#include <i4b/i4b_debug.h>
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#include <i4b/i4b_ioctl.h>
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#endif
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#include <i4b/include/i4b_l1l2.h>
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#include <i4b/include/i4b_l2l3.h>
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#include <i4b/include/i4b_isdnq931.h>
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#include <i4b/include/i4b_mbuf.h>
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#include <i4b/layer2/i4b_l2.h>
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#include <i4b/layer2/i4b_l2fsm.h>
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/*---------------------------------------------------------------------------*
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* mdl assign indication handler
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*---------------------------------------------------------------------------*/
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void
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i4b_mdl_assign_ind(l2_softc_t *l2sc)
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{
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DBGL2(L2_PRIM, "MDL-ASSIGN-IND", ("unit %d\n", l2sc->unit));
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i4b_l1_activate(l2sc);
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if(l2sc->tei_valid == TEI_VALID)
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{
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l2sc->T202func = (void(*)(void*))i4b_tei_verify;
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l2sc->N202 = N202DEF;
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i4b_tei_verify(l2sc);
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}
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else
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{
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l2sc->T202func = (void(*)(void*))i4b_tei_assign;
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l2sc->N202 = N202DEF;
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i4b_tei_assign(l2sc);
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}
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}
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/*---------------------------------------------------------------------------*
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* i4b_mdl_error_ind handler (Q.921 01/94 pp 156)
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*---------------------------------------------------------------------------*/
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void
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i4b_mdl_error_ind(l2_softc_t *l2sc, char *where, int errorcode)
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{
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static char *error_text[] = {
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"MDL_ERR_A: rx'd unsolicited response - supervisory (F=1)",
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"MDL_ERR_B: rx'd unsolicited response - DM (F=1)",
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"MDL_ERR_C: rx'd unsolicited response - UA (F=1)",
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"MDL_ERR_D: rx'd unsolicited response - UA (F=0)",
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"MDL_ERR_E: rx'd unsolicited response - DM (F=0)",
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"MDL_ERR_F: peer initiated re-establishment - SABME",
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"MDL_ERR_G: unsuccessful transmission N200times - SABME",
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"MDL_ERR_H: unsuccessful transmission N200times - DIS",
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"MDL_ERR_I: unsuccessful transmission N200times - Status ENQ",
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"MDL_ERR_J: other error - N(R) error",
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"MDL_ERR_K: other error - rx'd FRMR response",
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"MDL_ERR_L: other error - rx'd undefined frame",
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"MDL_ERR_M: other error - receipt of I field not permitted",
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"MDL_ERR_N: other error - rx'd frame with wrong size",
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"MDL_ERR_O: other error - N201 error",
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"MDL_ERR_MAX: i4b_mdl_error_ind called with wrong parameter!!!"
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};
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if(errorcode > MDL_ERR_MAX)
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errorcode = MDL_ERR_MAX;
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DBGL2(L2_ERROR, "i4b_mdl_error_ind", ("unit = %d, location = %s\n", l2sc->unit, where));
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DBGL2(L2_ERROR, "i4b_mdl_error_ind", ("error = %s\n", error_text[errorcode]));
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switch(errorcode)
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{
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case MDL_ERR_A:
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case MDL_ERR_B:
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break;
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case MDL_ERR_C:
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case MDL_ERR_D:
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i4b_tei_verify(l2sc);
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break;
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case MDL_ERR_E:
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case MDL_ERR_F:
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break;
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case MDL_ERR_G:
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case MDL_ERR_H:
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i4b_tei_verify(l2sc);
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break;
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case MDL_ERR_I:
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case MDL_ERR_J:
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case MDL_ERR_K:
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case MDL_ERR_L:
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case MDL_ERR_M:
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case MDL_ERR_N:
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case MDL_ERR_O:
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break;
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default:
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break;
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}
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}
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#endif /* NI4BQ921 > 0 */
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