1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28
29 /*
30 * University Copyright- Copyright (c) 1982, 1986, 1988
31 * The Regents of the University of California
32 * All Rights Reserved
33 *
34 * University Acknowledgment- Portions of this document are derived from
35 * software developed by the University of California, Berkeley, and its
36 * contributors.
37 */
38
39 /*
40 * Module to intercept old V7 and 4BSD "ioctl" calls.
41 */
42
43 #include <sys/types.h>
44 #include <sys/param.h>
45 #include <sys/signal.h>
46 #include <sys/file.h>
47 #include <sys/termios.h>
48 #include <sys/ttold.h>
49 #include <sys/cmn_err.h>
50 #include <sys/stream.h>
51 #include <sys/stropts.h>
52 #include <sys/strsubr.h>
53 #include <sys/strsun.h>
54 #include <sys/errno.h>
55 #include <sys/debug.h>
56 #include <sys/ttcompat.h>
57 #include <sys/ddi.h>
58 #include <sys/sunddi.h>
59 #include <sys/kmem.h>
60 #include <sys/policy.h>
61
62 /*
63 * This is the loadable module wrapper.
64 */
65 #include <sys/conf.h>
66 #include <sys/modctl.h>
67
68 /* See os/streamio.c */
69 extern int sgttyb_handling;
70
71 static struct streamtab ttcoinfo;
72
73 static struct fmodsw fsw = {
74 "ttcompat",
75 &ttcoinfo,
76 D_MTQPAIR | D_MP
77 };
78
79 /*
80 * Module linkage information for the kernel.
81 */
82
83 static struct modlstrmod modlstrmod = {
84 &mod_strmodops,
85 "alt ioctl calls",
86 &fsw
87 };
88
89 static struct modlinkage modlinkage = {
90 MODREV_1, &modlstrmod, NULL
91 };
92
93 int
94 _init(void)
95 {
96 return (mod_install(&modlinkage));
97 }
98
99 int
100 _fini(void)
101 {
102 return (mod_remove(&modlinkage));
103 }
104
105 int
106 _info(struct modinfo *modinfop)
107 {
108 return (mod_info(&modlinkage, modinfop));
109 }
110
111 static int ttcompatopen(queue_t *, dev_t *, int, int, cred_t *);
112 static int ttcompatclose(queue_t *, int, cred_t *);
113 static void ttcompatrput(queue_t *, mblk_t *);
114 static void ttcompatwput(queue_t *, mblk_t *);
115
116 static struct module_info ttycompatmiinfo = {
117 0,
118 "ttcompat",
119 0,
120 INFPSZ,
121 2048,
122 128
123 };
124
125 static struct qinit ttycompatrinit = {
126 (int (*)())ttcompatrput,
127 NULL,
128 ttcompatopen,
129 ttcompatclose,
130 NULL,
131 &ttycompatmiinfo
132 };
133
134 static struct module_info ttycompatmoinfo = {
135 42,
136 "ttcompat",
137 0,
138 INFPSZ,
139 300,
140 200
141 };
142
143 static struct qinit ttycompatwinit = {
144 (int (*)())ttcompatwput,
145 NULL,
146 ttcompatopen,
147 ttcompatclose,
148 NULL,
149 &ttycompatmoinfo
150 };
151
152 static struct streamtab ttcoinfo = {
153 &ttycompatrinit,
154 &ttycompatwinit,
155 NULL,
156 NULL
157 };
158
159 /*
160 * This is the termios structure that is used to reset terminal settings
161 * when the underlying device is an instance of zcons. It came from
162 * cmd/init/init.c and should be kept in-sync with dflt_termios found therein.
163 */
164 static const struct termios base_termios = {
165 BRKINT|ICRNL|IXON|IMAXBEL, /* iflag */
166 OPOST|ONLCR|TAB3, /* oflag */
167 CS8|CREAD|B9600, /* cflag */
168 ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE|IEXTEN, /* lflag */
169 CINTR, CQUIT, CERASE, CKILL, CEOF, 0, 0, 0, 0, 0, 0, 0, /* c_cc vals */
170 0, 0, 0, 0, 0, 0, 0
171 };
172
173
174 static void ttcompat_do_ioctl(ttcompat_state_t *, queue_t *, mblk_t *);
175 static void ttcompat_ioctl_ack(queue_t *, mblk_t *);
176 static void ttcopyout(queue_t *, mblk_t *);
177 static void ttcompat_ioctl_nak(queue_t *, mblk_t *);
178 static void from_compat(compat_state_t *, struct termios *);
179 static void to_compat(struct termios *, compat_state_t *);
180
181 /*
182 * Open - get the current modes and translate them to the V7/4BSD equivalent.
183 */
184 /*ARGSUSED*/
185 static int
186 ttcompatopen(queue_t *q, dev_t *devp, int oflag, int sflag, cred_t *crp)
187 {
188 ttcompat_state_t *tp;
189 mblk_t *mp;
190 mblk_t *datamp;
191 struct iocblk *iocb;
192 int error;
193
194 if (q->q_ptr != NULL) {
195 tp = (ttcompat_state_t *)q->q_ptr;
196 /* fail open if TIOCEXCL was done and its not privileged */
197 if ((tp->t_new_lflags & XCLUDE) &&
198 secpolicy_excl_open(crp) != 0) {
199 return (EBUSY);
200 }
201 return (0); /* already attached */
202 }
203 tp = kmem_zalloc(sizeof (ttcompat_state_t), KM_SLEEP);
204 tp->t_iocpending = NULL;
205 tp->t_state = 0;
206 tp->t_iocid = 0;
207 tp->t_ioccmd = 0;
208 tp->t_new_lflags = 0;
209 tp->t_curstate.t_flags = 0;
210 tp->t_curstate.t_ispeed = B0;
211 tp->t_curstate.t_ospeed = B0;
212 tp->t_curstate.t_erase = '\0';
213 tp->t_curstate.t_kill = '\0';
214 tp->t_curstate.t_intrc = '\0';
215 tp->t_curstate.t_quitc = '\0';
216 tp->t_curstate.t_startc = '\0';
217 tp->t_curstate.t_stopc = '\0';
218 tp->t_curstate.t_eofc = '\0';
219 tp->t_curstate.t_brkc = '\0';
220 tp->t_curstate.t_suspc = '\0';
221 tp->t_curstate.t_dsuspc = '\0';
222 tp->t_curstate.t_rprntc = '\0';
223 tp->t_curstate.t_flushc = '\0';
224 tp->t_curstate.t_werasc = '\0';
225 tp->t_curstate.t_lnextc = '\0';
226 tp->t_curstate.t_xflags = 0;
227 tp->t_bufcallid = 0;
228 tp->t_arg = 0;
229
230 q->q_ptr = tp;
231 WR(q)->q_ptr = tp;
232 qprocson(q);
233
234 /*
235 * Determine if the underlying device is a zcons instance. If so,
236 * then issue a termios ioctl to reset the terminal settings.
237 */
238 if (getmajor(q->q_stream->sd_vnode->v_rdev) !=
239 ddi_name_to_major("zcons"))
240 return (0);
241
242 /*
243 * Create the ioctl message.
244 */
245 if ((mp = mkiocb(TCSETSF)) == NULL) {
246 error = ENOMEM;
247 goto common_error;
248 }
249 if ((datamp = allocb(sizeof (struct termios), BPRI_HI)) == NULL) {
250 freemsg(mp);
251 error = ENOMEM;
252 goto common_error;
253 }
254 iocb = (struct iocblk *)mp->b_rptr;
255 iocb->ioc_count = sizeof (struct termios);
256 bcopy(&base_termios, datamp->b_rptr, sizeof (struct termios));
257 datamp->b_wptr += sizeof (struct termios);
258 mp->b_cont = datamp;
259
260 /*
261 * Send the ioctl message on its merry way toward the driver.
262 * Set some state beforehand so we can properly wait for
263 * an acknowledgement.
264 */
265 tp->t_state |= TS_IOCWAIT | TS_TIOCNAK;
266 tp->t_iocid = iocb->ioc_id;
267 tp->t_ioccmd = TCSETSF;
268 putnext(WR(q), mp);
269
270 /*
271 * Wait for an acknowledgement. A NAK is treated as an error.
272 * The presence of the TS_TIOCNAK flag indicates that a NAK was
273 * received.
274 */
275 while (tp->t_state & TS_IOCWAIT) {
276 if (qwait_sig(q) == 0) {
277 error = EINTR;
278 goto common_error;
279 }
280 }
281 if (!(tp->t_state & TS_TIOCNAK))
282 return (0);
283 error = ENOTTY;
284
285 common_error:
286 qprocsoff(q);
287 kmem_free(tp, sizeof (ttcompat_state_t));
288 q->q_ptr = NULL;
289 WR(q)->q_ptr = NULL;
290 return (error);
291 }
292
293 /* ARGSUSED1 */
294 static int
295 ttcompatclose(queue_t *q, int flag, cred_t *crp)
296 {
297 ttcompat_state_t *tp = (ttcompat_state_t *)q->q_ptr;
298 mblk_t *mp;
299
300 /* Dump the state structure, then unlink it */
301 qprocsoff(q);
302 if (tp->t_bufcallid != 0) {
303 qunbufcall(q, tp->t_bufcallid);
304 tp->t_bufcallid = 0;
305 }
306 if ((mp = tp->t_iocpending) != NULL)
307 freemsg(mp);
308 kmem_free(tp, sizeof (ttcompat_state_t));
309 q->q_ptr = NULL;
310
311 return (0);
312 }
313
314 /*
315 * Put procedure for input from driver end of stream (read queue).
316 * Most messages just get passed to the next guy up; we intercept
317 * "ioctl" replies, and if it's an "ioctl" whose reply we plan to do
318 * something with, we do it.
319 */
320 static void
321 ttcompatrput(queue_t *q, mblk_t *mp)
322 {
323 switch (mp->b_datap->db_type) {
324
325 case M_IOCACK:
326 ttcompat_ioctl_ack(q, mp);
327 break;
328
329 case M_IOCNAK:
330 ttcompat_ioctl_nak(q, mp);
331 break;
332
333 default:
334 putnext(q, mp);
335 break;
336 }
337 }
338
339 /*
340 * Line discipline output queue put procedure: speeds M_IOCTL
341 * messages.
342 */
343 static void
344 ttcompatwput(queue_t *q, mblk_t *mp)
345 {
346 ttcompat_state_t *tp;
347 struct copyreq *cqp;
348 struct copyresp *csp;
349 struct iocblk *iocbp;
350
351 tp = (ttcompat_state_t *)q->q_ptr;
352
353 /*
354 * Process some M_IOCTL messages here; pass everything else down.
355 */
356 switch (mp->b_datap->db_type) {
357
358 default:
359 putnext(q, mp);
360 return;
361
362 case M_IOCTL:
363 iocbp = (struct iocblk *)mp->b_rptr;
364
365 switch (iocbp->ioc_cmd) {
366
367 default:
368 /* these are ioctls with no arguments or are known to stream head */
369 /* process them right away */
370 ttcompat_do_ioctl(tp, q, mp);
371 return;
372 case TIOCSETN:
373 case TIOCSLTC:
374 case TIOCSETC:
375 case TIOCLBIS:
376 case TIOCLBIC:
377 case TIOCLSET:
378 case TIOCFLUSH:
379 if (iocbp->ioc_count != TRANSPARENT) {
380 putnext(q, mp);
381 return;
382 }
383
384 mp->b_datap->db_type = M_COPYIN;
385 cqp = (struct copyreq *)mp->b_rptr;
386 cqp->cq_addr = (caddr_t)*(intptr_t *)mp->b_cont->b_rptr;
387 switch (iocbp->ioc_cmd) {
388 case TIOCSETN:
389 cqp->cq_size = sizeof (struct sgttyb);
390 break;
391 case TIOCSLTC:
392 cqp->cq_size = sizeof (struct ltchars);
393 break;
394 case TIOCSETC:
395 cqp->cq_size = sizeof (struct tchars);
396 break;
397 case TIOCLBIS:
398 case TIOCLBIC:
399 case TIOCLSET:
400 case TIOCFLUSH:
401 cqp->cq_size = sizeof (int);
402 break;
403 default:
404 break;
405 }
406 cqp->cq_flag = 0;
407 cqp->cq_private = NULL;
408 freemsg(mp->b_cont);
409 mp->b_cont = NULL;
410 mp->b_wptr = mp->b_rptr + sizeof (struct copyreq);
411 tp->t_ioccmd = iocbp->ioc_cmd;
412 tp->t_state |= TS_W_IN;
413 qreply(q, mp);
414 return;
415
416 } /* switch ioc_cmd */
417 case M_IOCDATA:
418 csp = (struct copyresp *)mp->b_rptr;
419
420 switch (csp->cp_cmd) {
421
422 default:
423 putnext(q, mp);
424 return;
425
426 case TIOCSETN:
427 case TIOCSLTC:
428 case TIOCSETC:
429 case TIOCLBIS:
430 case TIOCLBIC:
431 case TIOCLSET:
432 case TIOCFLUSH:
433 tp->t_state &= ~TS_W_IN;
434 if (csp->cp_rval != 0) { /* failure */
435 freemsg(mp);
436 return;
437 }
438
439 /* make it look like an ioctl */
440 mp->b_datap->db_type = M_IOCTL;
441 mp->b_wptr = mp->b_rptr + sizeof (struct iocblk);
442 iocbp = (struct iocblk *)mp->b_rptr;
443 iocbp->ioc_count = MBLKL(mp->b_cont);
444 iocbp->ioc_error = 0;
445 iocbp->ioc_rval = 0;
446 ttcompat_do_ioctl(tp, q, mp);
447 return;
448
449 case TIOCGLTC:
450 case TIOCLGET:
451 case TIOCGETC:
452 tp->t_state &= ~TS_W_OUT;
453 if (csp->cp_rval != 0) { /* failure */
454 freemsg(mp);
455 return;
456 }
457
458 iocbp = (struct iocblk *)mp->b_rptr;
459 iocbp->ioc_count = 0;
460 iocbp->ioc_error = 0;
461 iocbp->ioc_rval = 0;
462 mp->b_datap->db_type = M_IOCACK;
463 qreply(q, mp);
464 return;
465
466 } /* switch cp_cmd */
467 } /* end message switch */
468 }
469
470 /*
471 * Retry an "ioctl", now that "bufcall" claims we may be able to allocate
472 * the buffer we need.
473 */
474 static void
475 ttcompat_reioctl(void *arg)
476 {
477 queue_t *q = arg;
478 ttcompat_state_t *tp;
479 mblk_t *mp;
480
481 tp = (ttcompat_state_t *)q->q_ptr;
482 tp->t_bufcallid = 0;
483
484 if ((mp = tp->t_iocpending) != NULL) {
485 tp->t_iocpending = NULL; /* not pending any more */
486 ttcompat_do_ioctl(tp, q, mp);
487 }
488 }
489
490 /*
491 * Handle old-style "ioctl" messages; pass the rest down unmolested.
492 */
493 static void
494 ttcompat_do_ioctl(ttcompat_state_t *tp, queue_t *q, mblk_t *mp)
495 {
496 struct iocblk *iocp;
497 int error;
498
499 /*
500 * Most of the miocpullup()'s below aren't needed because the
501 * ioctls in question are actually transparent M_IOCDATA messages
502 * dummied to look like M_IOCTL messages. However, for clarity and
503 * robustness against future changes, we've included them anyway.
504 */
505
506 iocp = (struct iocblk *)mp->b_rptr;
507 switch (iocp->ioc_cmd) {
508
509 /*
510 * "get"-style calls that get translated data from the "termios"
511 * structure. Save the existing code and pass it down as a TCGETS.
512 */
513 case TIOCGETC:
514 case TIOCLGET:
515 case TIOCGLTC:
516 if (iocp->ioc_count != TRANSPARENT) {
517 miocnak(q, mp, 0, EINVAL);
518 return;
519 }
520
521 /*
522 * We can get here with t_arg != 0, iff the stream head
523 * has for some reason given up on the ioctl in progress.
524 * The most likely cause is an interrupted ioctl syscall.
525 * We will behave robustly because (given our perimeter)
526 * the ttcompat_state_t will get set up for the new ioctl,
527 * and when the response we were waiting for appears it
528 * will be passed on to the stream head which will discard
529 * it as non-current.
530 */
531 ASSERT(mp->b_cont != NULL);
532 tp->t_arg = *(intptr_t *)mp->b_cont->b_rptr;
533 /* free the data buffer - it might not be sufficient */
534 /* driver will allocate one for termios size */
535 freemsg(mp->b_cont);
536 mp->b_cont = NULL;
537 iocp->ioc_count = 0;
538 /* FALLTHRU */
539 case TIOCGETP:
540 goto dogets;
541
542 /*
543 * "set"-style calls that set translated data into a "termios"
544 * structure. Set our idea of the new state from the value
545 * given to us. We then have to get the current state, so we
546 * turn this guy into a TCGETS and pass it down. When the
547 * ACK comes back, we modify the state we got back and shove it
548 * back down as the appropriate type of TCSETS.
549 */
550 case TIOCSETP:
551 case TIOCSETN:
552 error = miocpullup(mp, sizeof (struct sgttyb));
553 if (error != 0) {
554 miocnak(q, mp, 0, error);
555 return;
556 }
557 tp->t_new_sgttyb = *((struct sgttyb *)mp->b_cont->b_rptr);
558 goto dogets;
559
560 case TIOCSETC:
561 error = miocpullup(mp, sizeof (struct tchars));
562 if (error != 0) {
563 miocnak(q, mp, 0, error);
564 return;
565 }
566 tp->t_new_tchars = *((struct tchars *)mp->b_cont->b_rptr);
567 goto dogets;
568
569 case TIOCSLTC:
570 error = miocpullup(mp, sizeof (struct ltchars));
571 if (error != 0) {
572 miocnak(q, mp, 0, error);
573 return;
574 }
575 tp->t_new_ltchars = *((struct ltchars *)mp->b_cont->b_rptr);
576 goto dogets;
577
578 case TIOCLBIS:
579 case TIOCLBIC:
580 case TIOCLSET:
581 error = miocpullup(mp, sizeof (int));
582 if (error != 0) {
583 miocnak(q, mp, 0, error);
584 return;
585 }
586 tp->t_new_lflags = *(int *)mp->b_cont->b_rptr;
587 goto dogets;
588
589 /*
590 * "set"-style call that sets a particular bit in a "termios"
591 * structure. We then have to get the current state, so we
592 * turn this guy into a TCGETS and pass it down. When the
593 * ACK comes back, we modify the state we got back and shove it
594 * back down as the appropriate type of TCSETS.
595 */
596 case TIOCHPCL:
597 dogets:
598 tp->t_ioccmd = iocp->ioc_cmd;
599 tp->t_iocid = iocp->ioc_id;
600 tp->t_state |= TS_IOCWAIT;
601 iocp->ioc_cmd = TCGETS;
602 iocp->ioc_count = 0; /* no data returned unless we say so */
603 break;
604
605 /*
606 * "set"-style call that sets DTR. Pretend that it was a TIOCMBIS
607 * with TIOCM_DTR set.
608 */
609 case TIOCSDTR: {
610 mblk_t *datap;
611
612 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL)
613 goto allocfailure;
614 *(int *)datap->b_wptr = TIOCM_DTR;
615 datap->b_wptr += sizeof (int);
616 iocp->ioc_cmd = TIOCMBIS; /* turn it into a TIOCMBIS */
617 if (mp->b_cont != NULL)
618 freemsg(mp->b_cont);
619 mp->b_cont = datap; /* attach the data */
620 iocp->ioc_count = sizeof (int); /* in case driver checks */
621 break;
622 }
623
624 /*
625 * "set"-style call that clears DTR. Pretend that it was a TIOCMBIC
626 * with TIOCM_DTR set.
627 */
628 case TIOCCDTR: {
629 mblk_t *datap;
630
631 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL)
632 goto allocfailure;
633 *(int *)datap->b_wptr = TIOCM_DTR;
634 datap->b_wptr += sizeof (int);
635 iocp->ioc_cmd = TIOCMBIC; /* turn it into a TIOCMBIC */
636 if (mp->b_cont != NULL)
637 freemsg(mp->b_cont);
638 mp->b_cont = datap; /* attach the data */
639 iocp->ioc_count = sizeof (int); /* in case driver checks */
640 break;
641 }
642
643 /*
644 * Translate into the S5 form of TCFLSH.
645 */
646 case TIOCFLUSH: {
647 int flags;
648
649 error = miocpullup(mp, sizeof (int));
650 if (error != 0) {
651 miocnak(q, mp, 0, error);
652 return;
653 }
654 flags = *(int *)mp->b_cont->b_rptr;
655
656 switch (flags&(FREAD|FWRITE)) {
657
658 case 0:
659 case FREAD|FWRITE:
660 flags = 2; /* flush 'em both */
661 break;
662
663 case FREAD:
664 flags = 0; /* flush read */
665 break;
666
667 case FWRITE:
668 flags = 1; /* flush write */
669 break;
670 }
671 iocp->ioc_cmd = TCFLSH; /* turn it into a TCFLSH */
672 *(int *)mp->b_cont->b_rptr = flags; /* fiddle the arg */
673 break;
674 }
675
676 /*
677 * Turn into a TCXONC.
678 */
679 case TIOCSTOP: {
680 mblk_t *datap;
681
682 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL)
683 goto allocfailure;
684 *(int *)datap->b_wptr = 0; /* stop */
685 datap->b_wptr += sizeof (int);
686 iocp->ioc_cmd = TCXONC; /* turn it into a XONC */
687 iocp->ioc_count = sizeof (int);
688 if (mp->b_cont != NULL)
689 freemsg(mp->b_cont);
690 mp->b_cont = datap; /* attach the data */
691 break;
692 }
693
694 case TIOCSTART: {
695 mblk_t *datap;
696
697 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL)
698 goto allocfailure;
699 *(int *)datap->b_wptr = 1; /* start */
700 datap->b_wptr += sizeof (int);
701 iocp->ioc_cmd = TCXONC; /* turn it into a XONC */
702 iocp->ioc_count = sizeof (int);
703 if (mp->b_cont != NULL)
704 freemsg(mp->b_cont);
705 mp->b_cont = datap; /* attach the data */
706 break;
707 }
708 case TIOCSETD:
709 case TIOCGETD:
710 case DIOCSETP:
711 case DIOCGETP:
712 case LDOPEN:
713 case LDCLOSE:
714 case LDCHG:
715 case LDSETT:
716 case LDGETT:
717 /*
718 * All of these ioctls are just ACK'd, except for
719 * TIOCSETD, which must be for line discipline zero.
720 */
721 mp->b_datap->db_type = M_IOCACK;
722 if (iocp->ioc_cmd == TIOCSETD) {
723 iocp->ioc_error = miocpullup(mp, sizeof (uchar_t));
724 if (iocp->ioc_error == 0 && (*mp->b_cont->b_rptr != 0))
725 mp->b_datap->db_type = M_IOCNAK;
726 }
727
728 iocp->ioc_error = 0;
729 iocp->ioc_count = 0;
730 iocp->ioc_rval = 0;
731 qreply(q, mp);
732 return;
733 case IOCTYPE:
734 mp->b_datap->db_type = M_IOCACK;
735 iocp->ioc_error = 0;
736 iocp->ioc_count = 0;
737 iocp->ioc_rval = TIOC;
738 qreply(q, mp);
739 return;
740 case TIOCEXCL:
741 /* check for binary value of XCLUDE flag ???? */
742 tp->t_new_lflags |= XCLUDE;
743 mp->b_datap->db_type = M_IOCACK;
744 iocp->ioc_error = 0;
745 iocp->ioc_count = 0;
746 iocp->ioc_rval = 0;
747 qreply(q, mp);
748 return;
749 case TIOCNXCL:
750 tp->t_new_lflags &= ~XCLUDE;
751 mp->b_datap->db_type = M_IOCACK;
752 iocp->ioc_error = 0;
753 iocp->ioc_count = 0;
754 iocp->ioc_rval = 0;
755 qreply(q, mp);
756 return;
757 }
758
759 /*
760 * We don't reply to most calls, we just pass them down,
761 * possibly after modifying the arguments.
762 */
763 putnext(q, mp);
764 return;
765
766 allocfailure:
767 /*
768 * We needed to allocate something to handle this "ioctl", but
769 * couldn't; save this "ioctl" and arrange to get called back when
770 * it's more likely that we can get what we need.
771 * If there's already one being saved, throw it out, since it
772 * must have timed out.
773 */
774 if (tp->t_iocpending != NULL)
775 freemsg(tp->t_iocpending);
776 tp->t_iocpending = mp; /* hold this ioctl */
777 if (tp->t_bufcallid != 0)
778 qunbufcall(q, tp->t_bufcallid);
779
780 tp->t_bufcallid = qbufcall(q, sizeof (struct iocblk), BPRI_HI,
781 ttcompat_reioctl, q);
782 }
783
784 /*
785 * Called when an M_IOCACK message is seen on the read queue; if this
786 * is the response we were waiting for, we either:
787 * modify the data going up (if the "ioctl" read data); since in all
788 * cases, the old-style returned information is smaller than or the same
789 * size as the new-style returned information, we just overwrite the old
790 * stuff with the new stuff (beware of changing structure sizes, in case
791 * you invalidate this)
792 * or
793 * take this data, modify it appropriately, and send it back down (if
794 * the "ioctl" wrote data).
795 * In either case, we cancel the "wait"; the final response to a "write"
796 * ioctl goes back up to the user.
797 * If this wasn't the response we were waiting for, just pass it up.
798 */
799 static void
800 ttcompat_ioctl_ack(queue_t *q, mblk_t *mp)
801 {
802 ttcompat_state_t *tp;
803 struct iocblk *iocp;
804 mblk_t *datap;
805
806 tp = (ttcompat_state_t *)q->q_ptr;
807 iocp = (struct iocblk *)mp->b_rptr;
808
809 if (!(tp->t_state&TS_IOCWAIT) || iocp->ioc_id != tp->t_iocid) {
810 /*
811 * This isn't the reply we're looking for. Move along.
812 */
813 putnext(q, mp);
814 return;
815 }
816
817 datap = mp->b_cont; /* mblk containing data going up */
818
819 switch (tp->t_ioccmd) {
820
821 case TIOCGETP: {
822 struct sgttyb *cb;
823
824 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
825 datap->b_rptr = datap->b_wptr = datap->b_datap->db_base;
826 /* recycle the reply's buffer */
827 cb = (struct sgttyb *)datap->b_wptr;
828 /*
829 * This is used for TIOCGETP handling of sg_ispeed and
830 * sg_ospeed. If the current speed is over 38400 (the
831 * sgttyb limit), then we report 38400. Note that
832 * when "compatibility with old releases" is enabled
833 * (sgttyb_handling == 0), then t_[io]speed will have
834 * garbled nonsense, as in prior releases. (See
835 * to_compat() below).
836 */
837 cb->sg_ispeed = tp->t_curstate.t_ispeed > B38400 ? B38400 :
838 tp->t_curstate.t_ispeed;
839 cb->sg_ospeed = tp->t_curstate.t_ospeed > B38400 ? B38400 :
840 tp->t_curstate.t_ospeed;
841 cb->sg_erase = tp->t_curstate.t_erase;
842 cb->sg_kill = tp->t_curstate.t_kill;
843 cb->sg_flags = tp->t_curstate.t_flags;
844 datap->b_wptr += sizeof (struct sgttyb);
845 iocp->ioc_count = sizeof (struct sgttyb);
846
847 /* you are lucky - stream head knows how to copy you out */
848
849 tp->t_state &= ~TS_IOCWAIT; /* we got what we wanted */
850 iocp->ioc_rval = 0;
851 iocp->ioc_cmd = tp->t_ioccmd;
852 putnext(q, mp);
853 return;
854 }
855
856 case TIOCGETC:
857 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
858 datap->b_rptr = datap->b_wptr = datap->b_datap->db_base;
859 /* recycle the reply's buffer */
860 bcopy(&tp->t_curstate.t_intrc, datap->b_wptr,
861 sizeof (struct tchars));
862 datap->b_wptr += sizeof (struct tchars);
863 break;
864
865 case TIOCGLTC:
866 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
867 datap->b_rptr = datap->b_wptr = datap->b_datap->db_base;
868 /* recycle the reply's buffer */
869 bcopy(&tp->t_curstate.t_suspc, datap->b_wptr,
870 sizeof (struct ltchars));
871 datap->b_wptr += sizeof (struct ltchars);
872 break;
873
874 case TIOCLGET:
875 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
876 datap->b_rptr = datap->b_wptr = datap->b_datap->db_base;
877 /* recycle the reply's buffer */
878 *(int *)datap->b_wptr =
879 ((unsigned)tp->t_curstate.t_flags) >> 16;
880 datap->b_wptr += sizeof (int);
881 break;
882
883 case TIOCSETP:
884 case TIOCSETN:
885 /*
886 * Get the current state from the GETS data, and
887 * update it.
888 */
889 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
890 tp->t_curstate.t_erase = tp->t_new_sgttyb.sg_erase;
891 tp->t_curstate.t_kill = tp->t_new_sgttyb.sg_kill;
892 /*
893 * For new-style handling, we ignore requests to set
894 * B38400 when the current speed is over B38400. This
895 * means that we change the speed as requested if:
896 * old style (sgttyb_handling == 0) is requested
897 * the requested new speed isn't B38400
898 * the current speed is at or below B38400
899 * Note that when old style is requested, both speeds
900 * in t_curstate are set to <= B38400 by to_compat, so
901 * the first test isn't needed here.
902 * Also note that we silently allow the user to set
903 * speeds above B38400 through this interface,
904 * regardless of the style setting. This allows
905 * greater compatibility with current BSD releases.
906 */
907 if (tp->t_new_sgttyb.sg_ispeed != B38400 ||
908 tp->t_curstate.t_ispeed <= B38400)
909 tp->t_curstate.t_ispeed = tp->t_new_sgttyb.sg_ispeed;
910 if (tp->t_new_sgttyb.sg_ospeed != B38400 ||
911 tp->t_curstate.t_ospeed <= B38400)
912 tp->t_curstate.t_ospeed = tp->t_new_sgttyb.sg_ospeed;
913 tp->t_curstate.t_flags =
914 (tp->t_curstate.t_flags & 0xffff0000) |
915 (tp->t_new_sgttyb.sg_flags & 0xffff);
916
917 /*
918 * Replace the data that came up with the updated data.
919 */
920 from_compat(&tp->t_curstate, (struct termios *)datap->b_rptr);
921
922 /*
923 * Send it back down as a TCSETS or TCSETSF.
924 */
925 iocp->ioc_cmd = (tp->t_ioccmd == TIOCSETP) ? TCSETSF : TCSETS;
926 goto senddown;
927
928 case TIOCSETC:
929 /*
930 * Get the current state from the GETS data, and
931 * update it.
932 */
933 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
934 bcopy(&tp->t_new_tchars,
935 &tp->t_curstate.t_intrc, sizeof (struct tchars));
936
937 /*
938 * Replace the data that came up with the updated data.
939 */
940 from_compat(&tp->t_curstate, (struct termios *)datap->b_rptr);
941
942 /*
943 * Send it back down as a TCSETS.
944 */
945 iocp->ioc_cmd = TCSETS;
946 goto senddown;
947
948 case TIOCSLTC:
949 /*
950 * Get the current state from the GETS data, and
951 * update it.
952 */
953 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
954 bcopy(&tp->t_new_ltchars,
955 &tp->t_curstate.t_suspc, sizeof (struct ltchars));
956
957 /*
958 * Replace the data that came up with the updated data.
959 */
960 from_compat(&tp->t_curstate, (struct termios *)datap->b_rptr);
961
962 /*
963 * Send it back down as a TCSETS.
964 */
965 iocp->ioc_cmd = TCSETS;
966 goto senddown;
967
968 case TIOCLBIS:
969 /*
970 * Get the current state from the GETS data, and
971 * update it.
972 */
973 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
974 tp->t_curstate.t_flags |= (tp->t_new_lflags << 16);
975
976 /*
977 * Replace the data that came up with the updated data.
978 */
979 from_compat(&tp->t_curstate, (struct termios *)datap->b_rptr);
980
981 /*
982 * Send it back down as a TCSETS.
983 */
984 iocp->ioc_cmd = TCSETS;
985 goto senddown;
986
987 case TIOCLBIC:
988 /*
989 * Get the current state from the GETS data, and
990 * update it.
991 */
992 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
993 tp->t_curstate.t_flags &= ~(tp->t_new_lflags << 16);
994
995 /*
996 * Replace the data that came up with the updated data.
997 */
998 from_compat(&tp->t_curstate, (struct termios *)datap->b_rptr);
999
1000 /*
1001 * Send it back down as a TCSETS.
1002 */
1003 iocp->ioc_cmd = TCSETS;
1004 goto senddown;
1005
1006 case TIOCLSET:
1007 /*
1008 * Get the current state from the GETS data, and
1009 * update it.
1010 */
1011 to_compat((struct termios *)datap->b_rptr, &tp->t_curstate);
1012 tp->t_curstate.t_flags &= 0xffff;
1013 tp->t_curstate.t_flags |= (tp->t_new_lflags << 16);
1014
1015 /*
1016 * Replace the data that came up with the updated data.
1017 */
1018 from_compat(&tp->t_curstate, (struct termios *)datap->b_rptr);
1019
1020 /*
1021 * Send it back down as a TCSETS.
1022 */
1023 iocp->ioc_cmd = TCSETS;
1024 goto senddown;
1025
1026 case TIOCHPCL:
1027 /*
1028 * Replace the data that came up with the updated data.
1029 */
1030 ((struct termios *)datap->b_rptr)->c_cflag |= HUPCL;
1031
1032 /*
1033 * Send it back down as a TCSETS.
1034 */
1035 iocp->ioc_cmd = TCSETS;
1036 goto senddown;
1037
1038 case TCSETSF:
1039 /*
1040 * We're acknowledging the terminal reset ioctl that we sent
1041 * when the module was opened.
1042 */
1043 tp->t_state &= ~(TS_IOCWAIT | TS_TIOCNAK);
1044 freemsg(mp);
1045 return;
1046
1047 default:
1048 cmn_err(CE_WARN, "ttcompat: Unexpected ioctl acknowledgment\n");
1049 }
1050
1051 /*
1052 * All the calls that return something return 0.
1053 */
1054 tp->t_state &= ~TS_IOCWAIT; /* we got what we wanted */
1055 iocp->ioc_rval = 0;
1056
1057 /* copy out the data - ioctl transparency */
1058 iocp->ioc_cmd = tp->t_ioccmd;
1059 ttcopyout(q, mp);
1060 return;
1061
1062 senddown:
1063 /*
1064 * Send a "get state" reply back down, with suitably-modified
1065 * state, as a "set state" "ioctl".
1066 */
1067 tp->t_state &= ~TS_IOCWAIT;
1068 mp->b_datap->db_type = M_IOCTL;
1069 mp->b_wptr = mp->b_rptr + sizeof (struct iocblk);
1070 putnext(WR(q), mp);
1071 }
1072 /* Called from ttcompatrput M_IOCACK processing. */
1073 /* Copies out the data using M_COPYOUT messages */
1074
1075 static void
1076 ttcopyout(queue_t *q, mblk_t *mp)
1077 {
1078 struct copyreq *cqp;
1079 ttcompat_state_t *tp;
1080
1081 tp = (ttcompat_state_t *)q->q_ptr;
1082
1083 mp->b_datap->db_type = M_COPYOUT;
1084 cqp = (struct copyreq *)mp->b_rptr;
1085 cqp->cq_addr = (caddr_t)tp->t_arg; /* retrieve the 3rd argument */
1086 tp->t_arg = 0; /* clear it since we don't need it anymore */
1087 switch (tp->t_ioccmd) {
1088 case TIOCGLTC:
1089 cqp->cq_size = sizeof (struct ltchars);
1090 break;
1091 case TIOCGETC:
1092 cqp->cq_size = sizeof (struct tchars);
1093 break;
1094 case TIOCLGET:
1095 cqp->cq_size = sizeof (int);
1096 break;
1097 default:
1098 cmn_err(CE_WARN,
1099 "ttcompat: Unknown ioctl to copyout\n");
1100 break;
1101 }
1102 cqp->cq_flag = 0;
1103 cqp->cq_private = NULL;
1104 tp->t_state |= TS_W_OUT;
1105 putnext(q, mp);
1106 }
1107
1108
1109 /*
1110 * Called when an M_IOCNAK message is seen on the read queue; if this is
1111 * the response we were waiting for, cancel the wait. Pass the reply up;
1112 * if we were waiting for this response, we can't complete the "ioctl" and
1113 * the NAK will tell that to the guy above us.
1114 * If this wasn't the response we were waiting for, just pass it up.
1115 */
1116 static void
1117 ttcompat_ioctl_nak(queue_t *q, mblk_t *mp)
1118 {
1119 ttcompat_state_t *tp;
1120 struct iocblk *iocp;
1121
1122 iocp = (struct iocblk *)mp->b_rptr;
1123 tp = (ttcompat_state_t *)q->q_ptr;
1124
1125 if (tp->t_state&TS_IOCWAIT && iocp->ioc_id == tp->t_iocid) {
1126 tp->t_state &= ~TS_IOCWAIT; /* this call isn't going through */
1127 tp->t_arg = 0; /* we may have stashed the 3rd argument */
1128 }
1129 putnext(q, mp);
1130 }
1131
1132 #define FROM_COMPAT_CHAR(to, from) { if ((to = from) == 0377) to = 0; }
1133
1134 static void
1135 from_compat(compat_state_t *csp, struct termios *termiosp)
1136 {
1137 termiosp->c_iflag = 0;
1138 termiosp->c_oflag &= (ONLRET|ONOCR);
1139
1140 termiosp->c_cflag = (termiosp->c_cflag &
1141 (CRTSCTS|CRTSXOFF|PAREXT|LOBLK|HUPCL)) | CREAD;
1142
1143 if (csp->t_ospeed > CBAUD) {
1144 termiosp->c_cflag |= ((csp->t_ospeed - CBAUD - 1) & CBAUD) |
1145 CBAUDEXT;
1146 } else {
1147 termiosp->c_cflag |= csp->t_ospeed & CBAUD;
1148 }
1149
1150 if (csp->t_ospeed != csp->t_ispeed) {
1151 if (csp->t_ispeed > (CIBAUD >> IBSHIFT)) {
1152 termiosp->c_cflag |= CIBAUDEXT |
1153 (((csp->t_ispeed - (CIBAUD >> IBSHIFT) - 1) <<
1154 IBSHIFT) & CIBAUD);
1155 } else {
1156 termiosp->c_cflag |= (csp->t_ispeed << IBSHIFT) &
1157 CIBAUD;
1158 }
1159 /* hang up if ispeed=0 */
1160 if (csp->t_ispeed == 0)
1161 termiosp->c_cflag &= ~CBAUD & ~CBAUDEXT;
1162 }
1163 if (csp->t_ispeed == B110 || csp->t_xflags & STOPB)
1164 termiosp->c_cflag |= CSTOPB;
1165 termiosp->c_lflag = ECHOK;
1166 FROM_COMPAT_CHAR(termiosp->c_cc[VERASE], csp->t_erase);
1167 FROM_COMPAT_CHAR(termiosp->c_cc[VKILL], csp->t_kill);
1168 FROM_COMPAT_CHAR(termiosp->c_cc[VINTR], csp->t_intrc);
1169 FROM_COMPAT_CHAR(termiosp->c_cc[VQUIT], csp->t_quitc);
1170 FROM_COMPAT_CHAR(termiosp->c_cc[VSTART], csp->t_startc);
1171 FROM_COMPAT_CHAR(termiosp->c_cc[VSTOP], csp->t_stopc);
1172 termiosp->c_cc[VEOL2] = 0;
1173 FROM_COMPAT_CHAR(termiosp->c_cc[VSUSP], csp->t_suspc);
1174 /* is this useful? */
1175 FROM_COMPAT_CHAR(termiosp->c_cc[VDSUSP], csp->t_dsuspc);
1176 FROM_COMPAT_CHAR(termiosp->c_cc[VREPRINT], csp->t_rprntc);
1177 FROM_COMPAT_CHAR(termiosp->c_cc[VDISCARD], csp->t_flushc);
1178 FROM_COMPAT_CHAR(termiosp->c_cc[VWERASE], csp->t_werasc);
1179 FROM_COMPAT_CHAR(termiosp->c_cc[VLNEXT], csp->t_lnextc);
1180 termiosp->c_cc[VSTATUS] = 0;
1181 if (csp->t_flags & O_TANDEM)
1182 termiosp->c_iflag |= IXOFF;
1183 if (csp->t_flags & O_LCASE) {
1184 termiosp->c_iflag |= IUCLC;
1185 termiosp->c_oflag |= OLCUC;
1186 termiosp->c_lflag |= XCASE;
1187 }
1188 if (csp->t_flags & O_ECHO)
1189 termiosp->c_lflag |= ECHO;
1190 if (csp->t_flags & O_CRMOD) {
1191 termiosp->c_iflag |= ICRNL;
1192 termiosp->c_oflag |= ONLCR;
1193 switch (csp->t_flags & O_CRDELAY) {
1194
1195 case O_CR1:
1196 termiosp->c_oflag |= CR2;
1197 break;
1198
1199 case O_CR2:
1200 termiosp->c_oflag |= CR3;
1201 break;
1202 }
1203 } else {
1204 if ((csp->t_flags & O_NLDELAY) == O_NL1)
1205 termiosp->c_oflag |= ONLRET|CR1; /* tty37 */
1206 }
1207 if ((csp->t_flags & O_NLDELAY) == O_NL2)
1208 termiosp->c_oflag |= NL1;
1209 /*
1210 * When going into RAW mode, the special characters controlled by the
1211 * POSIX IEXTEN bit no longer apply; when leaving, they do.
1212 */
1213 if (csp->t_flags & O_RAW) {
1214 termiosp->c_cflag |= CS8;
1215 termiosp->c_iflag &= ~(ICRNL|IUCLC);
1216 termiosp->c_lflag &= ~(XCASE|IEXTEN);
1217 } else {
1218 termiosp->c_iflag |= IMAXBEL|BRKINT|IGNPAR;
1219 if (termiosp->c_cc[VSTOP] != 0 && termiosp->c_cc[VSTART] != 0)
1220 termiosp->c_iflag |= IXON;
1221 if (csp->t_flags & O_LITOUT)
1222 termiosp->c_cflag |= CS8;
1223 else {
1224 if (csp->t_flags & O_PASS8)
1225 termiosp->c_cflag |= CS8;
1226 /* XXX - what about 8 bits plus parity? */
1227 else {
1228 switch (csp->t_flags & (O_EVENP|O_ODDP)) {
1229
1230 case 0:
1231 termiosp->c_iflag |= ISTRIP;
1232 termiosp->c_cflag |= CS8;
1233 break;
1234
1235 case O_EVENP:
1236 termiosp->c_iflag |= INPCK|ISTRIP;
1237 termiosp->c_cflag |= CS7|PARENB;
1238 break;
1239
1240 case O_ODDP:
1241 termiosp->c_iflag |= INPCK|ISTRIP;
1242 termiosp->c_cflag |= CS7|PARENB|PARODD;
1243 break;
1244
1245 case O_EVENP|O_ODDP:
1246 termiosp->c_iflag |= ISTRIP;
1247 termiosp->c_cflag |= CS7|PARENB;
1248 break;
1249 }
1250 }
1251 if (!(csp->t_xflags & NOPOST))
1252 termiosp->c_oflag |= OPOST;
1253 }
1254 termiosp->c_lflag |= IEXTEN;
1255 if (!(csp->t_xflags & NOISIG))
1256 termiosp->c_lflag |= ISIG;
1257 if (!(csp->t_flags & O_CBREAK))
1258 termiosp->c_lflag |= ICANON;
1259 if (csp->t_flags & O_CTLECH)
1260 termiosp->c_lflag |= ECHOCTL;
1261 }
1262 switch (csp->t_flags & O_TBDELAY) {
1263
1264 case O_TAB1:
1265 termiosp->c_oflag |= TAB1;
1266 break;
1267
1268 case O_TAB2:
1269 termiosp->c_oflag |= TAB2;
1270 break;
1271
1272 case O_XTABS:
1273 termiosp->c_oflag |= TAB3;
1274 break;
1275 }
1276 if (csp->t_flags & O_VTDELAY)
1277 termiosp->c_oflag |= FFDLY;
1278 if (csp->t_flags & O_BSDELAY)
1279 termiosp->c_oflag |= BSDLY;
1280 if (csp->t_flags & O_PRTERA)
1281 termiosp->c_lflag |= ECHOPRT;
1282 if (csp->t_flags & O_CRTERA)
1283 termiosp->c_lflag |= ECHOE;
1284 if (csp->t_flags & O_TOSTOP)
1285 termiosp->c_lflag |= TOSTOP;
1286 if (csp->t_flags & O_FLUSHO)
1287 termiosp->c_lflag |= FLUSHO;
1288 if (csp->t_flags & O_NOHANG)
1289 termiosp->c_cflag |= CLOCAL;
1290 if (csp->t_flags & O_CRTKIL)
1291 termiosp->c_lflag |= ECHOKE;
1292 if (csp->t_flags & O_PENDIN)
1293 termiosp->c_lflag |= PENDIN;
1294 if (!(csp->t_flags & O_DECCTQ))
1295 termiosp->c_iflag |= IXANY;
1296 if (csp->t_flags & O_NOFLSH)
1297 termiosp->c_lflag |= NOFLSH;
1298 if (termiosp->c_lflag & ICANON) {
1299 FROM_COMPAT_CHAR(termiosp->c_cc[VEOF], csp->t_eofc);
1300 FROM_COMPAT_CHAR(termiosp->c_cc[VEOL], csp->t_brkc);
1301 } else {
1302 termiosp->c_cc[VMIN] = 1;
1303 termiosp->c_cc[VTIME] = 0;
1304 }
1305 }
1306
1307 #define TO_COMPAT_CHAR(to, from) { if ((to = from) == 0) to = (uchar_t)0377; }
1308
1309 static void
1310 to_compat(struct termios *termiosp, compat_state_t *csp)
1311 {
1312 csp->t_xflags &= (NOISIG|NOPOST);
1313 csp->t_ospeed = termiosp->c_cflag & CBAUD;
1314 csp->t_ispeed = (termiosp->c_cflag & CIBAUD) >> IBSHIFT;
1315 if (sgttyb_handling > 0) {
1316 if (termiosp->c_cflag & CBAUDEXT)
1317 csp->t_ospeed += CBAUD + 1;
1318 if (termiosp->c_cflag & CIBAUDEXT)
1319 csp->t_ispeed += (CIBAUD >> IBSHIFT) + 1;
1320 }
1321 if (csp->t_ispeed == 0)
1322 csp->t_ispeed = csp->t_ospeed;
1323 if ((termiosp->c_cflag & CSTOPB) && csp->t_ispeed != B110)
1324 csp->t_xflags |= STOPB;
1325 TO_COMPAT_CHAR(csp->t_erase, termiosp->c_cc[VERASE]);
1326 TO_COMPAT_CHAR(csp->t_kill, termiosp->c_cc[VKILL]);
1327 TO_COMPAT_CHAR(csp->t_intrc, termiosp->c_cc[VINTR]);
1328 TO_COMPAT_CHAR(csp->t_quitc, termiosp->c_cc[VQUIT]);
1329 TO_COMPAT_CHAR(csp->t_startc, termiosp->c_cc[VSTART]);
1330 TO_COMPAT_CHAR(csp->t_stopc, termiosp->c_cc[VSTOP]);
1331 TO_COMPAT_CHAR(csp->t_suspc, termiosp->c_cc[VSUSP]);
1332 TO_COMPAT_CHAR(csp->t_dsuspc, termiosp->c_cc[VDSUSP]);
1333 TO_COMPAT_CHAR(csp->t_rprntc, termiosp->c_cc[VREPRINT]);
1334 TO_COMPAT_CHAR(csp->t_flushc, termiosp->c_cc[VDISCARD]);
1335 TO_COMPAT_CHAR(csp->t_werasc, termiosp->c_cc[VWERASE]);
1336 TO_COMPAT_CHAR(csp->t_lnextc, termiosp->c_cc[VLNEXT]);
1337 csp->t_flags &= (O_CTLECH|O_LITOUT|O_PASS8|O_ODDP|O_EVENP);
1338 if (termiosp->c_iflag & IXOFF)
1339 csp->t_flags |= O_TANDEM;
1340 if (!(termiosp->c_iflag &
1341 (IMAXBEL|BRKINT|IGNPAR|PARMRK|INPCK|ISTRIP|
1342 INLCR|IGNCR|ICRNL|IUCLC|IXON)) &&
1343 !(termiosp->c_oflag & OPOST) &&
1344 (termiosp->c_cflag & (CSIZE|PARENB)) == CS8 &&
1345 !(termiosp->c_lflag & (ISIG|ICANON|XCASE|IEXTEN)))
1346 csp->t_flags |= O_RAW;
1347 else {
1348 if (!(termiosp->c_iflag & IXON)) {
1349 csp->t_startc = (uchar_t)0377;
1350 csp->t_stopc = (uchar_t)0377;
1351 }
1352 if ((termiosp->c_cflag & (CSIZE|PARENB)) == CS8 &&
1353 !(termiosp->c_oflag & OPOST))
1354 csp->t_flags |= O_LITOUT;
1355 else {
1356 csp->t_flags &= ~O_LITOUT;
1357 if ((termiosp->c_cflag & (CSIZE|PARENB)) == CS8) {
1358 if (!(termiosp->c_iflag & ISTRIP))
1359 csp->t_flags |= O_PASS8;
1360 } else {
1361 csp->t_flags &= ~(O_ODDP|O_EVENP|O_PASS8);
1362 if (termiosp->c_cflag & PARODD)
1363 csp->t_flags |= O_ODDP;
1364 else if (termiosp->c_iflag & INPCK)
1365 csp->t_flags |= O_EVENP;
1366 else
1367 csp->t_flags |= O_ODDP|O_EVENP;
1368 }
1369 if (!(termiosp->c_oflag & OPOST))
1370 csp->t_xflags |= NOPOST;
1371 else
1372 csp->t_xflags &= ~NOPOST;
1373 }
1374 if (!(termiosp->c_lflag & ISIG))
1375 csp->t_xflags |= NOISIG;
1376 else
1377 csp->t_xflags &= ~NOISIG;
1378 if (!(termiosp->c_lflag & ICANON))
1379 csp->t_flags |= O_CBREAK;
1380 if (termiosp->c_lflag & ECHOCTL)
1381 csp->t_flags |= O_CTLECH;
1382 else
1383 csp->t_flags &= ~O_CTLECH;
1384 }
1385 if (termiosp->c_oflag & OLCUC)
1386 csp->t_flags |= O_LCASE;
1387 if (termiosp->c_lflag&ECHO)
1388 csp->t_flags |= O_ECHO;
1389 if (termiosp->c_oflag & ONLCR) {
1390 csp->t_flags |= O_CRMOD;
1391 switch (termiosp->c_oflag & CRDLY) {
1392
1393 case CR2:
1394 csp->t_flags |= O_CR1;
1395 break;
1396
1397 case CR3:
1398 csp->t_flags |= O_CR2;
1399 break;
1400 }
1401 } else {
1402 if ((termiosp->c_oflag & CR1) &&
1403 (termiosp->c_oflag & ONLRET))
1404 csp->t_flags |= O_NL1; /* tty37 */
1405 }
1406 if ((termiosp->c_oflag & ONLRET) && (termiosp->c_oflag & NL1))
1407 csp->t_flags |= O_NL2;
1408 switch (termiosp->c_oflag & TABDLY) {
1409
1410 case TAB1:
1411 csp->t_flags |= O_TAB1;
1412 break;
1413
1414 case TAB2:
1415 csp->t_flags |= O_TAB2;
1416 break;
1417
1418 case XTABS:
1419 csp->t_flags |= O_XTABS;
1420 break;
1421 }
1422 if (termiosp->c_oflag & FFDLY)
1423 csp->t_flags |= O_VTDELAY;
1424 if (termiosp->c_oflag & BSDLY)
1425 csp->t_flags |= O_BSDELAY;
1426 if (termiosp->c_lflag & ECHOPRT)
1427 csp->t_flags |= O_PRTERA;
1428 if (termiosp->c_lflag & ECHOE)
1429 csp->t_flags |= (O_CRTERA|O_CRTBS);
1430 if (termiosp->c_lflag & TOSTOP)
1431 csp->t_flags |= O_TOSTOP;
1432 if (termiosp->c_lflag & FLUSHO)
1433 csp->t_flags |= O_FLUSHO;
1434 if (termiosp->c_cflag & CLOCAL)
1435 csp->t_flags |= O_NOHANG;
1436 if (termiosp->c_lflag & ECHOKE)
1437 csp->t_flags |= O_CRTKIL;
1438 if (termiosp->c_lflag & PENDIN)
1439 csp->t_flags |= O_PENDIN;
1440 if (!(termiosp->c_iflag & IXANY))
1441 csp->t_flags |= O_DECCTQ;
1442 if (termiosp->c_lflag & NOFLSH)
1443 csp->t_flags |= O_NOFLSH;
1444 if (termiosp->c_lflag & ICANON) {
1445 TO_COMPAT_CHAR(csp->t_eofc, termiosp->c_cc[VEOF]);
1446 TO_COMPAT_CHAR(csp->t_brkc, termiosp->c_cc[VEOL]);
1447 } else {
1448 termiosp->c_cc[VMIN] = 1;
1449 termiosp->c_cc[VTIME] = 0;
1450 }
1451 }