tty_43.c revision 1.20 1 /* $NetBSD: tty_43.c,v 1.20 2005/12/11 12:19:56 christos Exp $ */
2
3 /*-
4 * Copyright (c) 1982, 1986, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)tty_compat.c 8.2 (Berkeley) 1/9/95
32 */
33
34 /*
35 * mapping routines for old line discipline (yuck)
36 */
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: tty_43.c,v 1.20 2005/12/11 12:19:56 christos Exp $");
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/ioctl.h>
44 #include <sys/proc.h>
45 #include <sys/conf.h>
46 #include <sys/tty.h>
47 #include <sys/termios.h>
48 #include <sys/file.h>
49 #include <sys/kernel.h>
50 #include <sys/syslog.h>
51 #include <sys/ioctl_compat.h>
52
53 /*
54 * XXX libcompat files should be included with config attributes
55 */
56 #ifdef COMPAT_OLDTTY
57
58 int ttydebug = 0;
59
60 static const struct speedtab compatspeeds[] = {
61 #define MAX_SPEED 17
62 { 115200, 17 },
63 { 57600, 16 },
64 { 38400, 15 },
65 { 19200, 14 },
66 { 9600, 13 },
67 { 4800, 12 },
68 { 2400, 11 },
69 { 1800, 10 },
70 { 1200, 9 },
71 { 600, 8 },
72 { 300, 7 },
73 { 200, 6 },
74 { 150, 5 },
75 { 134, 4 },
76 { 110, 3 },
77 { 75, 2 },
78 { 50, 1 },
79 { 0, 0 },
80 { -1, -1 },
81 };
82 static const int compatspcodes[] = {
83 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
84 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200
85 };
86
87 /* Macros to clear/set/test flags. */
88 #define SET(t, f) (t) |= (f)
89 #define CLR(t, f) (t) &= ~(f)
90 #define ISSET(t, f) ((t) & (f))
91
92 int ttcompatgetflags __P((struct tty *));
93 void ttcompatsetflags __P((struct tty *, struct termios *));
94 void ttcompatsetlflags __P((struct tty *, struct termios *));
95
96 /*ARGSUSED*/
97 int
98 ttcompat(tp, com, data, flag, l)
99 struct tty *tp;
100 u_long com;
101 caddr_t data;
102 int flag;
103 struct lwp *l;
104 {
105
106 switch (com) {
107 case TIOCGETP: {
108 struct sgttyb *sg = (struct sgttyb *)data;
109 u_char *cc = tp->t_cc;
110 int speed;
111
112 speed = ttspeedtab(tp->t_ospeed, compatspeeds);
113 sg->sg_ospeed = (speed == -1) ? MAX_SPEED : speed;
114 if (tp->t_ispeed == 0)
115 sg->sg_ispeed = sg->sg_ospeed;
116 else {
117 speed = ttspeedtab(tp->t_ispeed, compatspeeds);
118 sg->sg_ispeed = (speed == -1) ? MAX_SPEED : speed;
119 }
120 sg->sg_erase = cc[VERASE];
121 sg->sg_kill = cc[VKILL];
122 sg->sg_flags = ttcompatgetflags(tp);
123 break;
124 }
125
126 case TIOCSETP:
127 case TIOCSETN: {
128 struct sgttyb *sg = (struct sgttyb *)data;
129 struct termios term;
130 int speed;
131
132 term = tp->t_termios;
133 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
134 term.c_ispeed = speed;
135 else
136 term.c_ispeed = compatspcodes[speed];
137 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
138 term.c_ospeed = speed;
139 else
140 term.c_ospeed = compatspcodes[speed];
141 term.c_cc[VERASE] = sg->sg_erase;
142 term.c_cc[VKILL] = sg->sg_kill;
143 tp->t_flags = (ttcompatgetflags(tp)&0xffff0000) | (sg->sg_flags&0xffff);
144 ttcompatsetflags(tp, &term);
145 return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
146 (caddr_t)&term, flag, l));
147 }
148
149 case TIOCGETC: {
150 struct tchars *tc = (struct tchars *)data;
151 u_char *cc = tp->t_cc;
152
153 tc->t_intrc = cc[VINTR];
154 tc->t_quitc = cc[VQUIT];
155 tc->t_startc = cc[VSTART];
156 tc->t_stopc = cc[VSTOP];
157 tc->t_eofc = cc[VEOF];
158 tc->t_brkc = cc[VEOL];
159 break;
160 }
161 case TIOCSETC: {
162 struct tchars *tc = (struct tchars *)data;
163 u_char *cc = tp->t_cc;
164
165 cc[VINTR] = tc->t_intrc;
166 cc[VQUIT] = tc->t_quitc;
167 cc[VSTART] = tc->t_startc;
168 cc[VSTOP] = tc->t_stopc;
169 cc[VEOF] = tc->t_eofc;
170 cc[VEOL] = tc->t_brkc;
171 if (tc->t_brkc == (char)-1)
172 cc[VEOL2] = _POSIX_VDISABLE;
173 break;
174 }
175 case TIOCSLTC: {
176 struct ltchars *ltc = (struct ltchars *)data;
177 u_char *cc = tp->t_cc;
178
179 cc[VSUSP] = ltc->t_suspc;
180 cc[VDSUSP] = ltc->t_dsuspc;
181 cc[VREPRINT] = ltc->t_rprntc;
182 cc[VDISCARD] = ltc->t_flushc;
183 cc[VWERASE] = ltc->t_werasc;
184 cc[VLNEXT] = ltc->t_lnextc;
185 break;
186 }
187 case TIOCGLTC: {
188 struct ltchars *ltc = (struct ltchars *)data;
189 u_char *cc = tp->t_cc;
190
191 ltc->t_suspc = cc[VSUSP];
192 ltc->t_dsuspc = cc[VDSUSP];
193 ltc->t_rprntc = cc[VREPRINT];
194 ltc->t_flushc = cc[VDISCARD];
195 ltc->t_werasc = cc[VWERASE];
196 ltc->t_lnextc = cc[VLNEXT];
197 break;
198 }
199 case TIOCLBIS:
200 case TIOCLBIC:
201 case TIOCLSET: {
202 struct termios term;
203 int flags;
204
205 term = tp->t_termios;
206 flags = ttcompatgetflags(tp);
207 switch (com) {
208 case TIOCLSET:
209 tp->t_flags = (flags&0xffff) | (*(int *)data<<16);
210 break;
211 case TIOCLBIS:
212 tp->t_flags = flags | (*(int *)data<<16);
213 break;
214 case TIOCLBIC:
215 tp->t_flags = flags & ~(*(int *)data<<16);
216 break;
217 }
218 ttcompatsetlflags(tp, &term);
219 return (ttioctl(tp, TIOCSETA, (caddr_t)&term, flag, l));
220 }
221 case TIOCLGET:
222 *(int *)data = ttcompatgetflags(tp)>>16;
223 if (ttydebug)
224 printf("CLGET: returning %x\n", *(int *)data);
225 break;
226
227 case OTIOCGETD:
228 *(int *)data = (tp->t_linesw == NULL) ?
229 2 /* XXX old NTTYDISC */ : tp->t_linesw->l_no;
230 break;
231
232 case OTIOCSETD: {
233 int ldisczero = 0;
234
235 return (ttioctl(tp, TIOCSETD,
236 *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag,
237 l));
238 }
239
240 case OTIOCCONS:
241 *(int *)data = 1;
242 return (ttioctl(tp, TIOCCONS, data, flag, l));
243
244 case TIOCHPCL:
245 SET(tp->t_cflag, HUPCL);
246 break;
247
248 case TIOCGSID:
249 if (tp->t_session == NULL)
250 return ENOTTY;
251
252 if (tp->t_session->s_leader == NULL)
253 return ENOTTY;
254
255 *(int *) data = tp->t_session->s_leader->p_pid;
256 break;
257
258 default:
259 return (EPASSTHROUGH);
260 }
261 return (0);
262 }
263
264 int
265 ttcompatgetflags(tp)
266 struct tty *tp;
267 {
268 tcflag_t iflag = tp->t_iflag;
269 tcflag_t lflag = tp->t_lflag;
270 tcflag_t oflag = tp->t_oflag;
271 tcflag_t cflag = tp->t_cflag;
272 int flags = 0;
273
274 if (ISSET(iflag, IXOFF))
275 SET(flags, TANDEM);
276 if (ISSET(iflag, ICRNL) || ISSET(oflag, ONLCR))
277 SET(flags, CRMOD);
278 if (ISSET(cflag, PARENB)) {
279 if (ISSET(iflag, INPCK)) {
280 if (ISSET(cflag, PARODD))
281 SET(flags, ODDP);
282 else
283 SET(flags, EVENP);
284 } else
285 SET(flags, ANYP);
286 }
287
288 if (!ISSET(lflag, ICANON)) {
289 /* fudge */
290 if (ISSET(iflag, IXON) || ISSET(lflag, ISIG|IEXTEN) ||
291 ISSET(cflag, PARENB))
292 SET(flags, CBREAK);
293 else
294 SET(flags, RAW);
295 }
296
297 if (ISSET(flags, RAW))
298 SET(flags, ISSET(tp->t_flags, LITOUT|PASS8));
299 else if (ISSET(cflag, CSIZE) == CS8) {
300 if (!ISSET(oflag, OPOST))
301 SET(flags, LITOUT);
302 if (!ISSET(iflag, ISTRIP))
303 SET(flags, PASS8);
304 }
305
306 if (ISSET(cflag, MDMBUF))
307 SET(flags, MDMBUF);
308 if (!ISSET(cflag, HUPCL))
309 SET(flags, NOHANG);
310 if (ISSET(oflag, OXTABS))
311 SET(flags, XTABS);
312 if (ISSET(lflag, ECHOE))
313 SET(flags, CRTERA|CRTBS);
314 if (ISSET(lflag, ECHOKE))
315 SET(flags, CRTKIL|CRTBS);
316 if (ISSET(lflag, ECHOPRT))
317 SET(flags, PRTERA);
318 if (ISSET(lflag, ECHOCTL))
319 SET(flags, CTLECH);
320 if (!ISSET(iflag, IXANY))
321 SET(flags, DECCTQ);
322 SET(flags, ISSET(lflag, ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH));
323 if (ttydebug)
324 printf("getflags: %x\n", flags);
325 return (flags);
326 }
327
328 void
329 ttcompatsetflags(tp, t)
330 struct tty *tp;
331 struct termios *t;
332 {
333 int flags = tp->t_flags;
334 tcflag_t iflag = t->c_iflag;
335 tcflag_t oflag = t->c_oflag;
336 tcflag_t lflag = t->c_lflag;
337 tcflag_t cflag = t->c_cflag;
338
339 if (ISSET(flags, TANDEM))
340 SET(iflag, IXOFF);
341 else
342 CLR(iflag, IXOFF);
343 if (ISSET(flags, ECHO))
344 SET(lflag, ECHO);
345 else
346 CLR(lflag, ECHO);
347 if (ISSET(flags, CRMOD)) {
348 SET(iflag, ICRNL);
349 SET(oflag, ONLCR);
350 } else {
351 CLR(iflag, ICRNL);
352 CLR(oflag, ONLCR);
353 }
354 if (ISSET(flags, XTABS))
355 SET(oflag, OXTABS);
356 else
357 CLR(oflag, OXTABS);
358
359
360 if (ISSET(flags, RAW)) {
361 iflag &= IXOFF;
362 CLR(lflag, ISIG|ICANON|IEXTEN);
363 CLR(cflag, PARENB);
364 } else {
365 SET(iflag, BRKINT|IXON|IMAXBEL);
366 SET(lflag, ISIG|IEXTEN);
367 if (ISSET(flags, CBREAK))
368 CLR(lflag, ICANON);
369 else
370 SET(lflag, ICANON);
371 switch (ISSET(flags, ANYP)) {
372 case 0:
373 CLR(cflag, PARENB);
374 break;
375 case ANYP:
376 SET(cflag, PARENB);
377 CLR(iflag, INPCK);
378 break;
379 case EVENP:
380 SET(cflag, PARENB);
381 SET(iflag, INPCK);
382 CLR(cflag, PARODD);
383 break;
384 case ODDP:
385 SET(cflag, PARENB);
386 SET(iflag, INPCK);
387 SET(cflag, PARODD);
388 break;
389 }
390 }
391
392 if (ISSET(flags, RAW|LITOUT|PASS8)) {
393 CLR(cflag, CSIZE);
394 SET(cflag, CS8);
395 if (!ISSET(flags, RAW|PASS8))
396 SET(iflag, ISTRIP);
397 else
398 CLR(iflag, ISTRIP);
399 if (!ISSET(flags, RAW|LITOUT))
400 SET(oflag, OPOST);
401 else
402 CLR(oflag, OPOST);
403 } else {
404 CLR(cflag, CSIZE);
405 SET(cflag, CS7);
406 SET(iflag, ISTRIP);
407 SET(oflag, OPOST);
408 }
409
410 t->c_iflag = iflag;
411 t->c_oflag = oflag;
412 t->c_lflag = lflag;
413 t->c_cflag = cflag;
414 }
415
416 void
417 ttcompatsetlflags(tp, t)
418 struct tty *tp;
419 struct termios *t;
420 {
421 int flags = tp->t_flags;
422 tcflag_t iflag = t->c_iflag;
423 tcflag_t oflag = t->c_oflag;
424 tcflag_t lflag = t->c_lflag;
425 tcflag_t cflag = t->c_cflag;
426
427 /* Nothing we can do with CRTBS. */
428 if (ISSET(flags, PRTERA))
429 SET(lflag, ECHOPRT);
430 else
431 CLR(lflag, ECHOPRT);
432 if (ISSET(flags, CRTERA))
433 SET(lflag, ECHOE);
434 else
435 CLR(lflag, ECHOE);
436 /* Nothing we can do with TILDE. */
437 if (ISSET(flags, MDMBUF))
438 SET(cflag, MDMBUF);
439 else
440 CLR(cflag, MDMBUF);
441 if (ISSET(flags, NOHANG))
442 CLR(cflag, HUPCL);
443 else
444 SET(cflag, HUPCL);
445 if (ISSET(flags, CRTKIL))
446 SET(lflag, ECHOKE);
447 else
448 CLR(lflag, ECHOKE);
449 if (ISSET(flags, CTLECH))
450 SET(lflag, ECHOCTL);
451 else
452 CLR(lflag, ECHOCTL);
453 if (!ISSET(flags, DECCTQ))
454 SET(iflag, IXANY);
455 else
456 CLR(iflag, IXANY);
457 CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
458 SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
459
460 if (ISSET(flags, RAW|LITOUT|PASS8)) {
461 CLR(cflag, CSIZE);
462 SET(cflag, CS8);
463 if (!ISSET(flags, RAW|PASS8))
464 SET(iflag, ISTRIP);
465 else
466 CLR(iflag, ISTRIP);
467 if (!ISSET(flags, RAW|LITOUT))
468 SET(oflag, OPOST);
469 else
470 CLR(oflag, OPOST);
471 } else {
472 CLR(cflag, CSIZE);
473 SET(cflag, CS7);
474 SET(iflag, ISTRIP);
475 SET(oflag, OPOST);
476 }
477
478 t->c_iflag = iflag;
479 t->c_oflag = oflag;
480 t->c_lflag = lflag;
481 t->c_cflag = cflag;
482 }
483
484 #endif /* COMPAT_OLDTTY */
485