2 * Copyright (c) 1997, 2001 Hellmuth Michaelis. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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
25 *---------------------------------------------------------------------------
27 * i4b_i4bdrv.c - i4b userland interface driver
28 * --------------------------------------------
30 * $FreeBSD: src/sys/i4b/layer4/i4b_i4bdrv.c,v 1.11.2.5 2001/12/16 15:12:59 hm Exp $
31 * $DragonFly: src/sys/net/i4b/layer4/i4b_i4bdrv.c,v 1.20 2008/01/06 16:55:52 swildner Exp $
33 * last edit-date: [Sat Aug 11 18:08:10 2001]
35 *---------------------------------------------------------------------------*/
38 #include "use_i4bipr.h"
39 #include "use_i4btel.h"
42 #error "only 1 (one) i4b device possible!"
47 #include <sys/param.h>
49 #include <sys/malloc.h>
51 #include <sys/kernel.h>
52 #include <sys/systm.h>
54 #include <sys/device.h>
56 #include <sys/socket.h>
57 #include <sys/thread2.h>
58 #include <sys/selinfo.h>
62 #include "use_i4bing.h"
63 #include "use_i4bisppp.h"
65 #include <net/i4b/include/machine/i4b_debug.h>
66 #include <net/i4b/include/machine/i4b_ioctl.h>
67 #include <net/i4b/include/machine/i4b_cause.h>
69 #include "../include/i4b_l3l4.h"
70 #include "../include/i4b_mbuf.h"
71 #include "../include/i4b_global.h"
75 #include <sys/event.h>
77 struct selinfo select_rd_info;
79 static struct ifqueue i4b_rdqueue;
80 static int openflag = 0;
81 static int readflag = 0;
83 #define PDEVSTATIC static
85 PDEVSTATIC d_open_t i4bopen;
86 PDEVSTATIC d_close_t i4bclose;
87 PDEVSTATIC d_read_t i4bread;
88 PDEVSTATIC d_ioctl_t i4bioctl;
89 PDEVSTATIC d_kqfilter_t i4bkqfilter;
91 PDEVSTATIC void i4bkqfilt_detach(struct knote *);
92 PDEVSTATIC int i4bkqfilt_read(struct knote *, long);
93 PDEVSTATIC int i4bkqfilt_write(struct knote *, long);
97 static struct dev_ops i4b_ops = {
98 { "i4b", CDEV_MAJOR, D_KQFILTER },
103 .d_kqfilter = i4bkqfilter
106 PDEVSTATIC void i4battach(void *);
107 PSEUDO_SET(i4battach, i4b_i4bdrv);
109 /*---------------------------------------------------------------------------*
110 * interface attach routine
111 *---------------------------------------------------------------------------*/
113 i4battach(void *dummy)
115 kprintf("i4b: ISDN call control device attached\n");
117 i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
119 make_dev(&i4b_ops, 0, UID_ROOT, GID_WHEEL, 0600, "i4b");
122 /*---------------------------------------------------------------------------*
123 * i4bopen - device driver open routine
124 *---------------------------------------------------------------------------*/
126 i4bopen(struct dev_open_args *ap)
128 cdev_t dev = ap->a_head.a_dev;
136 i4b_l4_daemon_attached();
142 /*---------------------------------------------------------------------------*
143 * i4bclose - device driver close routine
144 *---------------------------------------------------------------------------*/
146 i4bclose(struct dev_close_args *ap)
150 i4b_l4_daemon_detached();
151 i4b_Dcleanifq(&i4b_rdqueue);
156 /*---------------------------------------------------------------------------*
157 * i4bread - device driver read routine
158 *---------------------------------------------------------------------------*/
160 i4bread(struct dev_read_args *ap)
162 cdev_t dev = ap->a_head.a_dev;
170 while(IF_QEMPTY(&i4b_rdqueue))
173 error = tsleep((caddr_t) &i4b_rdqueue, PCATCH, "bird", 0);
180 IF_DEQUEUE(&i4b_rdqueue, m);
185 error = uiomove(m->m_data, m->m_len, ap->a_uio);
195 /*---------------------------------------------------------------------------*
196 * i4bioctl - device driver ioctl routine
197 *---------------------------------------------------------------------------*/
199 i4bioctl(struct dev_ioctl_args *ap)
201 cdev_t dev = ap->a_head.a_dev;
202 caddr_t data = ap->a_data;
211 /* cdid request, reserve cd and return cdid */
216 mir = (msg_cdid_req_t *)data;
218 mir->cdid = cd->cdid;
222 /* connect request, dial out to remote */
224 case I4B_CONNECT_REQ:
226 msg_connect_req_t *mcr;
227 mcr = (msg_connect_req_t *)data; /* setup ptr */
229 if((cd = cd_by_cdid(mcr->cdid)) == NULL)/* get cd */
231 NDBGL4(L4_ERR, "I4B_CONNECT_REQ ioctl, cdid not found!");
236 /* prevent dialling on leased lines */
237 if(ctrl_desc[mcr->controller].protocol == PROTOCOL_D64S)
239 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
240 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_LLDIAL);
241 i4b_l4_disconnect_ind(cd);
246 cd->controller = mcr->controller; /* fill cd */
247 cd->bprot = mcr->bprot;
248 cd->driver = mcr->driver;
249 cd->driver_unit = mcr->driver_unit;
250 cd->cr = get_rand_cr(ctrl_desc[cd->controller].unit);
252 cd->shorthold_data.shorthold_algorithm = mcr->shorthold_data.shorthold_algorithm;
253 cd->shorthold_data.unitlen_time = mcr->shorthold_data.unitlen_time;
254 cd->shorthold_data.idle_time = mcr->shorthold_data.idle_time;
255 cd->shorthold_data.earlyhup_time = mcr->shorthold_data.earlyhup_time;
257 cd->last_aocd_time = 0;
258 if(mcr->unitlen_method == ULEN_METHOD_DYNAMIC)
265 cd->max_idle_time = 0; /* this is outgoing */
267 cd->dir = DIR_OUTGOING;
269 NDBGL4(L4_TIMO, "I4B_CONNECT_REQ times, algorithm=%ld unitlen=%ld idle=%ld earlyhup=%ld",
270 (long)cd->shorthold_data.shorthold_algorithm, (long)cd->shorthold_data.unitlen_time,
271 (long)cd->shorthold_data.idle_time, (long)cd->shorthold_data.earlyhup_time);
273 strcpy(cd->dst_telno, mcr->dst_telno);
274 strcpy(cd->src_telno, mcr->src_telno);
276 if(mcr->keypad[0] != '\0')
277 strcpy(cd->keypad, mcr->keypad);
279 cd->keypad[0] = '\0';
281 cd->display[0] = '\0';
283 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
284 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NORMAL);
290 if(ctrl_desc[mcr->controller].bch_state[mcr->channel] != BCH_ST_FREE)
291 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
298 i < ctrl_desc[mcr->controller].nbch &&
299 ctrl_desc[mcr->controller].bch_state[i] != BCH_ST_FREE;
301 if (i == ctrl_desc[mcr->controller].nbch)
302 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
303 /* else mcr->channel = i; XXX */
308 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
312 cd->channelid = mcr->channel;
314 cd->isdntxdelay = mcr->txdelay;
316 /* check whether we have a pointer. Seems like */
317 /* this should be adequate. GJ 19.09.97 */
318 if(ctrl_desc[cd->controller].N_CONNECT_REQUEST == NULL)
319 /*XXX*/ SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
321 if((GET_CAUSE_VAL(cd->cause_in)) != CAUSE_I4B_NORMAL)
323 i4b_l4_disconnect_ind(cd);
328 (*ctrl_desc[cd->controller].N_CONNECT_REQUEST)(mcr->cdid);
333 /* connect response, accept/reject/ignore incoming call */
335 case I4B_CONNECT_RESP:
337 msg_connect_resp_t *mcrsp;
339 mcrsp = (msg_connect_resp_t *)data;
341 if((cd = cd_by_cdid(mcrsp->cdid)) == NULL)/* get cd */
343 NDBGL4(L4_ERR, "I4B_CONNECT_RESP ioctl, cdid not found!");
350 cd->driver = mcrsp->driver;
351 cd->driver_unit = mcrsp->driver_unit;
352 cd->max_idle_time = mcrsp->max_idle_time;
354 cd->shorthold_data.shorthold_algorithm = SHA_FIXU;
355 cd->shorthold_data.unitlen_time = 0; /* this is incoming */
356 cd->shorthold_data.idle_time = 0;
357 cd->shorthold_data.earlyhup_time = 0;
359 cd->isdntxdelay = mcrsp->txdelay;
361 NDBGL4(L4_TIMO, "I4B_CONNECT_RESP max_idle_time set to %ld seconds", (long)cd->max_idle_time);
363 (*ctrl_desc[cd->controller].N_CONNECT_RESPONSE)(mcrsp->cdid, mcrsp->response, mcrsp->cause);
367 /* disconnect request, actively terminate connection */
369 case I4B_DISCONNECT_REQ:
371 msg_discon_req_t *mdr;
373 mdr = (msg_discon_req_t *)data;
375 if((cd = cd_by_cdid(mdr->cdid)) == NULL)/* get cd */
377 NDBGL4(L4_ERR, "I4B_DISCONNECT_REQ ioctl, cdid not found!");
382 /* preset causes with our cause */
383 cd->cause_in = cd->cause_out = mdr->cause;
385 (*ctrl_desc[cd->controller].N_DISCONNECT_REQUEST)(mdr->cdid, mdr->cause);
389 /* controller info request */
391 case I4B_CTRL_INFO_REQ:
393 msg_ctrl_info_req_t *mcir;
395 mcir = (msg_ctrl_info_req_t *)data;
396 mcir->ncontroller = nctrl;
398 if(mcir->controller > nctrl)
400 mcir->ctrl_type = -1;
401 mcir->card_type = -1;
406 ctrl_desc[mcir->controller].ctrl_type;
408 ctrl_desc[mcir->controller].card_type;
410 ctrl_desc[mcir->controller].nbch;
412 if(ctrl_desc[mcir->controller].ctrl_type == CTRL_PASSIVE)
413 mcir->tei = ctrl_desc[mcir->controller].tei;
422 case I4B_DIALOUT_RESP:
424 drvr_link_t *dlt = NULL;
425 msg_dialout_resp_t *mdrsp;
427 mdrsp = (msg_dialout_resp_t *)data;
429 switch(mdrsp->driver)
433 dlt = ipr_ret_linktab(mdrsp->driver_unit);
439 dlt = i4bisppp_ret_linktab(mdrsp->driver_unit);
445 dlt = tel_ret_linktab(mdrsp->driver_unit);
451 dlt = ing_ret_linktab(mdrsp->driver_unit);
457 (*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat, mdrsp->cause);
461 /* update timeout value */
463 case I4B_TIMEOUT_UPD:
465 msg_timeout_upd_t *mtu;
467 mtu = (msg_timeout_upd_t *)data;
469 NDBGL4(L4_TIMO, "I4B_TIMEOUT_UPD ioctl, alg %d, unit %d, idle %d, early %d!",
470 mtu->shorthold_data.shorthold_algorithm, mtu->shorthold_data.unitlen_time,
471 mtu->shorthold_data.idle_time, mtu->shorthold_data.earlyhup_time);
473 if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
475 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, cdid not found!");
480 switch( mtu->shorthold_data.shorthold_algorithm )
484 * For this algorithm unitlen_time,
485 * idle_time and earlyhup_time are used.
488 if(!(mtu->shorthold_data.unitlen_time >= 0 &&
489 mtu->shorthold_data.idle_time >= 0 &&
490 mtu->shorthold_data.earlyhup_time >= 0))
492 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for fix unit algorithm!");
499 * For this algorithm unitlen_time and
500 * idle_time are used. both must be
501 * positive integers. earlyhup_time is
502 * not used and must be 0.
505 if(!(mtu->shorthold_data.unitlen_time > 0 &&
506 mtu->shorthold_data.idle_time >= 0 &&
507 mtu->shorthold_data.earlyhup_time == 0))
509 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for var unit algorithm!");
515 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid algorithm!");
521 * any error set above requires us to break
522 * out of the outer switch
528 cd->shorthold_data.shorthold_algorithm = mtu->shorthold_data.shorthold_algorithm;
529 cd->shorthold_data.unitlen_time = mtu->shorthold_data.unitlen_time;
530 cd->shorthold_data.idle_time = mtu->shorthold_data.idle_time;
531 cd->shorthold_data.earlyhup_time = mtu->shorthold_data.earlyhup_time;
536 /* soft enable/disable interface */
540 msg_updown_ind_t *mui;
542 mui = (msg_updown_ind_t *)data;
545 if(mui->driver == BDRV_IPR)
548 dlt = ipr_ret_linktab(mui->driver_unit);
549 (*dlt->updown_ind)(mui->driver_unit, mui->updown);
555 /* send ALERT request */
559 msg_alert_req_t *mar;
561 mar = (msg_alert_req_t *)data;
563 if((cd = cd_by_cdid(mar->cdid)) == NULL)
565 NDBGL4(L4_ERR, "I4B_ALERT_REQ ioctl, cdid not found!");
572 (*ctrl_desc[cd->controller].N_ALERT_REQUEST)(mar->cdid);
577 /* version/release number request */
583 mvr = (msg_vr_req_t *)data;
585 mvr->version = VERSION;
591 /* set D-channel protocol for a controller */
597 mpi = (msg_prot_ind_t *)data;
599 ctrl_desc[mpi->controller].protocol = mpi->protocol;
604 /* Download request */
606 case I4B_CTRL_DOWNLOAD:
608 struct isdn_dr_prot *prots = NULL, *prots2 = NULL;
609 struct isdn_download_request *r =
610 (struct isdn_download_request*)data;
613 if (r->controller < 0 || r->controller >= nctrl)
619 if(!ctrl_desc[r->controller].N_DOWNLOAD)
625 prots = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
628 prots2 = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
631 copyin(r->protocols, prots, r->numprotos * sizeof(struct isdn_dr_prot));
633 for(i = 0; i < r->numprotos; i++)
635 prots2[i].microcode = kmalloc(prots[i].bytecount, M_DEVBUF, M_WAITOK);
636 copyin(prots[i].microcode, prots2[i].microcode, prots[i].bytecount);
637 prots2[i].bytecount = prots[i].bytecount;
640 error = ctrl_desc[r->controller].N_DOWNLOAD(
641 ctrl_desc[r->controller].unit,
642 r->numprotos, prots2);
647 for(i = 0; i < r->numprotos; i++)
649 if(prots2[i].microcode)
651 kfree(prots2[i].microcode, M_DEVBUF);
654 kfree(prots2, M_DEVBUF);
659 kfree(prots, M_DEVBUF);
664 /* Diagnostic request */
666 case I4B_ACTIVE_DIAGNOSTIC:
668 struct isdn_diagnostic_request req, *r =
669 (struct isdn_diagnostic_request*)data;
671 req.in_param = req.out_param = NULL;
672 if (r->controller < 0 || r->controller >= nctrl)
678 if(!ctrl_desc[r->controller].N_DIAGNOSTICS)
684 memcpy(&req, r, sizeof(req));
688 /* XXX arbitrary limit */
689 if (req.in_param_len >
690 I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN) {
695 req.in_param = kmalloc(r->in_param_len, M_DEVBUF, M_WAITOK);
697 error = copyin(r->in_param, req.in_param, req.in_param_len);
702 if(req.out_param_len)
703 req.out_param = kmalloc(r->out_param_len, M_DEVBUF, M_WAITOK);
705 error = ctrl_desc[r->controller].N_DIAGNOSTICS(r->controller, &req);
707 if(!error && req.out_param_len)
708 error = copyout(req.out_param, r->out_param, req.out_param_len);
712 kfree(req.in_param, M_DEVBUF);
715 kfree(req.out_param, M_DEVBUF);
730 /*---------------------------------------------------------------------------*
731 * i4bkqfilter - device driver poll routine
732 *---------------------------------------------------------------------------*/
733 static struct filterops i4bkqfiltops_read =
734 { 1, NULL, i4bkqfilt_detach, i4bkqfilt_read };
735 static struct filterops i4bkqfiltops_write =
736 { 1, NULL, i4bkqfilt_detach, i4bkqfilt_write };
739 i4bkqfilter(struct dev_kqfilter_args *ap)
741 cdev_t dev = ap->a_head.a_dev;
742 struct knote *kn = ap->a_kn;
750 switch (kn->kn_filter) {
752 kn->kn_fop = &i4bkqfiltops_read;
755 kn->kn_fop = &i4bkqfiltops_write;
758 ap->a_result = EOPNOTSUPP;
763 klist = &select_rd_info.si_note;
764 SLIST_INSERT_HEAD(klist, kn, kn_selnext);
771 i4bkqfilt_detach(struct knote *kn)
776 klist = &select_rd_info.si_note;
777 SLIST_REMOVE(klist, kn, knote, kn_selnext);
782 i4bkqfilt_read(struct knote *kn, long hint)
787 if (!IF_QEMPTY(&i4b_rdqueue))
795 i4bkqfilt_write(struct knote *kn, long hint)
800 /*---------------------------------------------------------------------------*
801 * i4bputqueue - put message into queue to userland
802 *---------------------------------------------------------------------------*/
804 i4bputqueue(struct mbuf *m)
814 if(IF_QFULL(&i4b_rdqueue))
817 IF_DEQUEUE(&i4b_rdqueue, m1);
819 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
822 IF_ENQUEUE(&i4b_rdqueue, m);
829 wakeup((caddr_t) &i4b_rdqueue);
832 selwakeup(&select_rd_info);
833 KNOTE(&select_rd_info.si_note, 0);
836 /*---------------------------------------------------------------------------*
837 * i4bputqueue_hipri - put message into front of queue to userland
838 *---------------------------------------------------------------------------*/
840 i4bputqueue_hipri(struct mbuf *m)
850 if(IF_QFULL(&i4b_rdqueue))
853 IF_DEQUEUE(&i4b_rdqueue, m1);
855 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
858 IF_PREPEND(&i4b_rdqueue, m);
865 wakeup((caddr_t) &i4b_rdqueue);
868 selwakeup(&select_rd_info);
869 KNOTE(&select_rd_info.si_note, 0);
872 #endif /* NI4B > 0 */