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-rw-r--r--sys/i4b/layer2/i4b_l2.c385
1 files changed, 0 insertions, 385 deletions
diff --git a/sys/i4b/layer2/i4b_l2.c b/sys/i4b/layer2/i4b_l2.c
deleted file mode 100644
index f752ba6..0000000
--- a/sys/i4b/layer2/i4b_l2.c
+++ /dev/null
@@ -1,385 +0,0 @@
-/*-
- * 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_l2.c - ISDN layer 2 (Q.921)
- * -------------------------------
- * last edit-date: [Sat Mar 9 16:11:14 2002]
- *
- *---------------------------------------------------------------------------*/
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <net/if.h>
-
-#include <i4b/include/i4b_debug.h>
-
-#include <i4b/include/i4b_l1l2.h>
-#include <i4b/include/i4b_l2l3.h>
-#include <i4b/include/i4b_mbuf.h>
-#include <i4b/include/i4b_global.h>
-
-#include <i4b/layer2/i4b_l2.h>
-#include <i4b/layer2/i4b_l2fsm.h>
-
-int i4b_dl_establish_ind(int);
-int i4b_dl_establish_cnf(int);
-int i4b_dl_release_ind(int);
-int i4b_dl_release_cnf(int);
-int i4b_dl_data_ind(int, struct mbuf *);
-int i4b_dl_unit_data_ind(int, struct mbuf *);
-
-static int i4b_mdl_command_req(int, int, void *);
-
-/* from layer 2 */
-
-extern int i4b_mdl_status_ind(int, int, int);
-
-/* this layers debug level */
-
-unsigned int i4b_l2_debug = L2_DEBUG_DEFAULT;
-
-struct i4b_l2l3_func i4b_l2l3_func = {
-
- /* Layer 2 --> Layer 3 */
-
- (int (*)(int)) i4b_dl_establish_ind,
- (int (*)(int)) i4b_dl_establish_cnf,
- (int (*)(int)) i4b_dl_release_ind,
- (int (*)(int)) i4b_dl_release_cnf,
- (int (*)(int, struct mbuf *)) i4b_dl_data_ind,
- (int (*)(int, struct mbuf *)) i4b_dl_unit_data_ind,
-
- /* Layer 3 --> Layer 2 */
-
- (int (*)(int)) i4b_dl_establish_req,
- (int (*)(int)) i4b_dl_release_req,
- (int (*)(int, struct mbuf *)) i4b_dl_data_req,
- (int (*)(int, struct mbuf *)) i4b_dl_unit_data_req,
-
- /* Layer 2 --> Layer 3 management */
-
- (int (*)(int, int, int)) i4b_mdl_status_ind,
-
- /* Layer 3 --> Layer 2 management */
-
- (int (*)(int, int, void *)) i4b_mdl_command_req
-};
-
-/*---------------------------------------------------------------------------*
- * DL_ESTABLISH_REQ from layer 3
- *---------------------------------------------------------------------------*/
-int i4b_dl_establish_req(int unit)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
-
- NDBGL2(L2_PRIM, "unit %d",unit);
- i4b_l1_activate(l2sc);
- i4b_next_l2state(l2sc, EV_DLESTRQ);
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * DL_RELEASE_REQ from layer 3
- *---------------------------------------------------------------------------*/
-int i4b_dl_release_req(int unit)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
-
- NDBGL2(L2_PRIM, "unit %d",unit);
- i4b_next_l2state(l2sc, EV_DLRELRQ);
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * DL UNIT DATA REQUEST from Layer 3
- *---------------------------------------------------------------------------*/
-int i4b_dl_unit_data_req(int unit, struct mbuf *m)
-{
-#ifdef NOTDEF
- NDBGL2(L2_PRIM, "unit %d",unit);
-#endif
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * DL DATA REQUEST from Layer 3
- *---------------------------------------------------------------------------*/
-int i4b_dl_data_req(int unit, struct mbuf *m)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
-
-#ifdef NOTDEF
- NDBGL2(L2_PRIM, "unit %d",unit);
-#endif
- switch(l2sc->Q921_state)
- {
- case ST_AW_EST:
- case ST_MULTIFR:
- case ST_TIMREC:
-
- if(_IF_QFULL(&l2sc->i_queue))
- {
- NDBGL2(L2_ERROR, "i_queue full!!");
- i4b_Dfreembuf(m);
- }
- else
- {
- CRIT_VAR;
-
- CRIT_BEG;
- IF_ENQUEUE(&l2sc->i_queue, m);
- CRIT_END;
-
- i4b_i_frame_queued_up(l2sc);
- }
- break;
-
- default:
- NDBGL2(L2_ERROR, "unit %d ERROR in state [%s], freeing mbuf", unit, i4b_print_l2state(l2sc));
- i4b_Dfreembuf(m);
- break;
- }
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * i4b_ph_activate_ind - link activation indication from layer 1
- *---------------------------------------------------------------------------*/
-int
-i4b_ph_activate_ind(int unit)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
-
- NDBGL1(L1_PRIM, "unit %d",unit);
- l2sc->ph_active = PH_ACTIVE;
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * i4b_ph_deactivate_ind - link deactivation indication from layer 1
- *---------------------------------------------------------------------------*/
-int
-i4b_ph_deactivate_ind(int unit)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
-
- NDBGL1(L1_PRIM, "unit %d",unit);
- l2sc->ph_active = PH_INACTIVE;
- return(0);
-}
-
-
-/*---------------------------------------------------------------------------*
- * i4b_l2_unit_init - place layer 2 unit into known state
- *---------------------------------------------------------------------------*/
-static void
-i4b_l2_unit_init(int unit)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
- CRIT_VAR;
-
- CRIT_BEG;
- l2sc->Q921_state = ST_TEI_UNAS;
- l2sc->tei_valid = TEI_INVALID;
- l2sc->vr = 0;
- l2sc->vs = 0;
- l2sc->va = 0;
- l2sc->ack_pend = 0;
- l2sc->rej_excpt = 0;
- l2sc->peer_busy = 0;
- l2sc->own_busy = 0;
- l2sc->l3initiated = 0;
-
- l2sc->rxd_CR = 0;
- l2sc->rxd_PF = 0;
- l2sc->rxd_NR = 0;
- l2sc->RC = 0;
- l2sc->iframe_sent = 0;
-
- l2sc->postfsmfunc = NULL;
-
- if(l2sc->ua_num != UA_EMPTY)
- {
- i4b_Dfreembuf(l2sc->ua_frame);
- l2sc->ua_num = UA_EMPTY;
- l2sc->ua_frame = NULL;
- }
-
- i4b_T200_stop(l2sc);
- i4b_T202_stop(l2sc);
- i4b_T203_stop(l2sc);
-
- CRIT_END;
-}
-
-/*---------------------------------------------------------------------------*
- * i4b_mph_status_ind - status indication upward
- *---------------------------------------------------------------------------*/
-int
-i4b_mph_status_ind(int unit, int status, int parm)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
- CRIT_VAR;
- int sendup = 1;
-
- CRIT_BEG;
-
- NDBGL1(L1_PRIM, "unit %d, status=%d, parm=%d", unit, status, parm);
-
- switch(status)
- {
- case STI_ATTACH:
- l2sc->unit = unit;
- l2sc->i_queue.ifq_maxlen = IQUEUE_MAXLEN;
-
- if(!mtx_initialized(&l2sc->i_queue.ifq_mtx))
- mtx_init(&l2sc->i_queue.ifq_mtx, "i4b_l2sc", NULL, MTX_DEF);
-
- l2sc->ua_frame = NULL;
- bzero(&l2sc->stat, sizeof(lapdstat_t));
- i4b_l2_unit_init(unit);
-
- /* initialize the callout handles for timeout routines */
- callout_handle_init(&l2sc->T200_callout);
- callout_handle_init(&l2sc->T202_callout);
- callout_handle_init(&l2sc->T203_callout);
- callout_handle_init(&l2sc->IFQU_callout);
- break;
-
- case STI_L1STAT: /* state of layer 1 */
- break;
-
- case STI_PDEACT: /* Timer 4 expired */
-/*XXX*/ if((l2sc->Q921_state >= ST_AW_EST) &&
- (l2sc->Q921_state <= ST_TIMREC))
- {
- NDBGL2(L2_ERROR, "unit %d, persistent deactivation!", unit);
- i4b_l2_unit_init(unit);
- }
- else
- {
- sendup = 0;
- }
- break;
-
- case STI_NOL1ACC:
- i4b_l2_unit_init(unit);
- NDBGL2(L2_ERROR, "unit %d, cannot access S0 bus!", unit);
- break;
-
- default:
- NDBGL2(L2_ERROR, "ERROR, unit %d, unknown status message!", unit);
- break;
- }
-
- if(sendup)
- MDL_Status_Ind(unit, status, parm); /* send up to layer 3 */
-
- CRIT_END;
-
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * MDL_COMMAND_REQ from layer 3
- *---------------------------------------------------------------------------*/
-static int
-i4b_mdl_command_req(int unit, int command, void * parm)
-{
- NDBGL2(L2_PRIM, "unit %d, command=%d, parm=%d", unit, command, (unsigned int)parm);
-
- switch(command)
- {
- case CMR_DOPEN:
- i4b_l2_unit_init(unit);
- break;
- }
-
- MPH_Command_Req(unit, command, parm);
-
- return(0);
-}
-
-/*---------------------------------------------------------------------------*
- * i4b_ph_data_ind - process a rx'd frame got from layer 1
- *---------------------------------------------------------------------------*/
-int
-i4b_ph_data_ind(int unit, struct mbuf *m)
-{
- l2_softc_t *l2sc = &l2_softc[unit];
-#ifdef NOTDEF
- NDBGL1(L1_PRIM, "unit %d", unit);
-#endif
- u_char *ptr = m->m_data;
-
- if ( (*(ptr + OFF_CNTL) & 0x01) == 0 )
- {
- if(m->m_len < 4) /* 6 oct - 2 chksum oct */
- {
- l2sc->stat.err_rx_len++;
- NDBGL2(L2_ERROR, "ERROR, I-frame < 6 octetts!");
- i4b_Dfreembuf(m);
- return(0);
- }
- i4b_rxd_i_frame(unit, m);
- }
- else if ( (*(ptr + OFF_CNTL) & 0x03) == 0x01 )
- {
- if(m->m_len < 4) /* 6 oct - 2 chksum oct */
- {
- l2sc->stat.err_rx_len++;
- NDBGL2(L2_ERROR, "ERROR, S-frame < 6 octetts!");
- i4b_Dfreembuf(m);
- return(0);
- }
- i4b_rxd_s_frame(unit, m);
- }
- else if ( (*(ptr + OFF_CNTL) & 0x03) == 0x03 )
- {
- if(m->m_len < 3) /* 5 oct - 2 chksum oct */
- {
- l2sc->stat.err_rx_len++;
- NDBGL2(L2_ERROR, "ERROR, U-frame < 5 octetts!");
- i4b_Dfreembuf(m);
- return(0);
- }
- i4b_rxd_u_frame(unit, m);
- }
- else
- {
- l2sc->stat.err_rx_badf++;
- NDBGL2(L2_ERROR, "ERROR, bad frame rx'd - ");
- i4b_print_frame(m->m_len, m->m_data);
- i4b_Dfreembuf(m);
- }
- return(0);
-}
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