/* * 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_l4if.c - Layer 3 interface to Layer 4 * ------------------------------------------- * * $Id: i4b_l4if.c,v 1.7 2002/03/24 20:36:01 martin Exp $ * * $FreeBSD$ * * last edit-date: [Fri Jan 5 11:33:47 2001] * *---------------------------------------------------------------------------*/ #include __KERNEL_RCSID(0, "$NetBSD: i4b_l4if.c,v 1.7 2002/03/24 20:36:01 martin Exp $"); #ifdef __FreeBSD__ #include "i4bq931.h" #else #define NI4BQ931 1 #endif #if NI4BQ931 > 0 #include #include #include #include #include #include #if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000 #include #endif #ifdef __FreeBSD__ #include #include #include #else #include #include #include #endif #include #include #include #include #include #include #include #include #include #include void n_connect_request(u_int cdid); void n_connect_response(u_int cdid, int response, int cause); void n_disconnect_request(u_int cdid, int cause); void n_alert_request(u_int cdid); void n_mgmt_command(int bri, int cmd, void *parm); /*---------------------------------------------------------------------------* * i4b_mdl_status_ind - status indication from lower layers *---------------------------------------------------------------------------*/ int i4b_mdl_status_ind(int bri, int status, int parm) { struct isdn_l3_driver *d = NULL; int sendup; int i; NDBGL3(L3_MSG, "bri = %d, status = %d, parm = %d", bri, status, parm); switch(status) { case STI_ATTACH: if (parm) { NDBGL3(L3_MSG, "STI_ATTACH: attaching bri %d", bri); } else { NDBGL3(L3_MSG, "STI_ATTACH: dettaching bri %d", bri); } break; case STI_L1STAT: i4b_l4_l12stat(bri, 1, parm); NDBGL3(L3_MSG, "STI_L1STAT: bri %d layer 1 = %s", bri, status ? "up" : "down"); break; case STI_L2STAT: i4b_l4_l12stat(bri, 2, parm); NDBGL3(L3_MSG, "STI_L2STAT: bri %d layer 2 = %s", bri, status ? "up" : "down"); break; case STI_TEIASG: d = isdn_find_l3_by_bri(bri); d->tei = parm; i4b_l4_teiasg(bri, parm); NDBGL3(L3_MSG, "STI_TEIASG: bri %d TEI = %d = 0x%02x", bri, parm, parm); break; case STI_PDEACT: /* L1 T4 timeout */ NDBGL3(L3_ERR, "STI_PDEACT: bri %d TEI = %d = 0x%02x", bri, parm, parm); d = isdn_find_l3_by_bri(bri); sendup = 0; for(i=0; i < num_call_desc; i++) { if(call_desc[i].bri == bri) { i4b_l3_stop_all_timers(&(call_desc[i])); if(call_desc[i].cdid != CDID_UNUSED) sendup++; } } d->dl_est = DL_DOWN; d->bch_state[CHAN_B1] = BCH_ST_FREE; d->bch_state[CHAN_B2] = BCH_ST_FREE; d->tei = -1; if(sendup) { i4b_l4_pdeact(bri, sendup); call_desc[i].cdid = CDID_UNUSED; } break; case STI_NOL1ACC: /* no outgoing access to S0 */ NDBGL3(L3_ERR, "STI_NOL1ACC: bri %d no outgoing access to S0", bri); d = isdn_find_l3_by_bri(bri); for(i=0; i < num_call_desc; i++) { if(call_desc[i].bri == bri) { if(call_desc[i].cdid != CDID_UNUSED) { SET_CAUSE_TYPE(call_desc[i].cause_in, CAUSET_I4B); SET_CAUSE_VAL(call_desc[i].cause_in, CAUSE_I4B_L1ERROR); i4b_l4_disconnect_ind(&(call_desc[i])); } } } d->dl_est = DL_DOWN; d->bch_state[CHAN_B1] = BCH_ST_FREE; d->bch_state[CHAN_B2] = BCH_ST_FREE; d->tei = -1; break; default: NDBGL3(L3_ERR, "ERROR, bri %d, unknown status value %d!", bri, status); break; } return(0); } /*---------------------------------------------------------------------------* * send command to the lower layers *---------------------------------------------------------------------------*/ void n_mgmt_command(int bri, int cmd, void *parm) { struct isdn_l3_driver *d = isdn_find_l3_by_bri(bri); int i; switch(cmd) { case CMR_DOPEN: NDBGL3(L3_MSG, "CMR_DOPEN for bri %d", bri); for(i=0; i < num_call_desc; i++) { if(call_desc[i].bri == bri) { call_desc[i].cdid = CDID_UNUSED; } } d->dl_est = DL_DOWN; d->bch_state[CHAN_B1] = BCH_ST_FREE; d->bch_state[CHAN_B2] = BCH_ST_FREE; d->tei = -1; break; case CMR_DCLOSE: NDBGL3(L3_MSG, "CMR_DCLOSE for bri %d", bri); break; default: NDBGL3(L3_MSG, "unknown cmd %d for bri %d", cmd, bri); break; } i4b_mdl_command_req(bri, cmd, parm); } /*---------------------------------------------------------------------------* * handle connect request message from userland *---------------------------------------------------------------------------*/ void n_connect_request(u_int cdid) { call_desc_t *cd; cd = cd_by_cdid(cdid); next_l3state(cd, EV_SETUPRQ); } /*---------------------------------------------------------------------------* * handle setup response message from userland *---------------------------------------------------------------------------*/ void n_connect_response(u_int cdid, int response, int cause) { struct isdn_l3_driver *d; call_desc_t *cd; int chstate; cd = cd_by_cdid(cdid); d = isdn_find_l3_by_bri(cd->bri); T400_stop(cd); cd->response = response; cd->cause_out = cause; switch(response) { case SETUP_RESP_ACCEPT: next_l3state(cd, EV_SETACRS); chstate = BCH_ST_USED; break; case SETUP_RESP_REJECT: next_l3state(cd, EV_SETRJRS); chstate = BCH_ST_FREE; break; case SETUP_RESP_DNTCRE: next_l3state(cd, EV_SETDCRS); chstate = BCH_ST_FREE; break; default: /* failsafe */ next_l3state(cd, EV_SETDCRS); chstate = BCH_ST_FREE; NDBGL3(L3_ERR, "unknown response, doing SETUP_RESP_DNTCRE"); break; } if((cd->channelid == CHAN_B1) || (cd->channelid == CHAN_B2)) { d->bch_state[cd->channelid] = chstate; i4b_l2_channel_set_state(cd->bri, cd->channelid, chstate); } else { NDBGL3(L3_MSG, "Warning, invalid channelid %d, response = %d\n", cd->channelid, response); } } /*---------------------------------------------------------------------------* * handle disconnect request message from userland *---------------------------------------------------------------------------*/ void n_disconnect_request(u_int cdid, int cause) { call_desc_t *cd; cd = cd_by_cdid(cdid); cd->cause_out = cause; next_l3state(cd, EV_DISCRQ); } /*---------------------------------------------------------------------------* * handle alert request message from userland *---------------------------------------------------------------------------*/ void n_alert_request(u_int cdid) { call_desc_t *cd; cd = cd_by_cdid(cdid); next_l3state(cd, EV_ALERTRQ); } #endif /* NI4BQ931 > 0 */