tty_43.c revision 1.22 1 /* $NetBSD: tty_43.c,v 1.22 2007/03/04 06:01:13 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 1.22 2007/03/04 06:01:13 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 int ttcompatgetflags __P((struct tty *));
88 void ttcompatsetflags __P((struct tty *, struct termios *));
89 void ttcompatsetlflags __P((struct tty *, struct termios *));
90
91 /*ARGSUSED*/
92 int
93 ttcompat(tp, com, data, flag, l)
94 struct tty *tp;
95 u_long com;
96 void *data;
97 int flag;
98 struct lwp *l;
99 {
100
101 switch (com) {
102 case TIOCGETP: {
103 struct sgttyb *sg = (struct sgttyb *)data;
104 u_char *cc = tp->t_cc;
105 int speed;
106
107 speed = ttspeedtab(tp->t_ospeed, compatspeeds);
108 sg->sg_ospeed = (speed == -1) ? MAX_SPEED : speed;
109 if (tp->t_ispeed == 0)
110 sg->sg_ispeed = sg->sg_ospeed;
111 else {
112 speed = ttspeedtab(tp->t_ispeed, compatspeeds);
113 sg->sg_ispeed = (speed == -1) ? MAX_SPEED : speed;
114 }
115 sg->sg_erase = cc[VERASE];
116 sg->sg_kill = cc[VKILL];
117 sg->sg_flags = ttcompatgetflags(tp);
118 break;
119 }
120
121 case TIOCSETP:
122 case TIOCSETN: {
123 struct sgttyb *sg = (struct sgttyb *)data;
124 struct termios term;
125 int speed;
126
127 term = tp->t_termios;
128 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
129 term.c_ispeed = speed;
130 else
131 term.c_ispeed = compatspcodes[speed];
132 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
133 term.c_ospeed = speed;
134 else
135 term.c_ospeed = compatspcodes[speed];
136 term.c_cc[VERASE] = sg->sg_erase;
137 term.c_cc[VKILL] = sg->sg_kill;
138 tp->t_flags = (ttcompatgetflags(tp)&0xffff0000) | (sg->sg_flags&0xffff);
139 ttcompatsetflags(tp, &term);
140 return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
141 (void *)&term, flag, l));
142 }
143
144 case TIOCGETC: {
145 struct tchars *tc = (struct tchars *)data;
146 u_char *cc = tp->t_cc;
147
148 tc->t_intrc = cc[VINTR];
149 tc->t_quitc = cc[VQUIT];
150 tc->t_startc = cc[VSTART];
151 tc->t_stopc = cc[VSTOP];
152 tc->t_eofc = cc[VEOF];
153 tc->t_brkc = cc[VEOL];
154 break;
155 }
156 case TIOCSETC: {
157 struct tchars *tc = (struct tchars *)data;
158 u_char *cc = tp->t_cc;
159
160 cc[VINTR] = tc->t_intrc;
161 cc[VQUIT] = tc->t_quitc;
162 cc[VSTART] = tc->t_startc;
163 cc[VSTOP] = tc->t_stopc;
164 cc[VEOF] = tc->t_eofc;
165 cc[VEOL] = tc->t_brkc;
166 if (tc->t_brkc == (char)-1)
167 cc[VEOL2] = _POSIX_VDISABLE;
168 break;
169 }
170 case TIOCSLTC: {
171 struct ltchars *ltc = (struct ltchars *)data;
172 u_char *cc = tp->t_cc;
173
174 cc[VSUSP] = ltc->t_suspc;
175 cc[VDSUSP] = ltc->t_dsuspc;
176 cc[VREPRINT] = ltc->t_rprntc;
177 cc[VDISCARD] = ltc->t_flushc;
178 cc[VWERASE] = ltc->t_werasc;
179 cc[VLNEXT] = ltc->t_lnextc;
180 break;
181 }
182 case TIOCGLTC: {
183 struct ltchars *ltc = (struct ltchars *)data;
184 u_char *cc = tp->t_cc;
185
186 ltc->t_suspc = cc[VSUSP];
187 ltc->t_dsuspc = cc[VDSUSP];
188 ltc->t_rprntc = cc[VREPRINT];
189 ltc->t_flushc = cc[VDISCARD];
190 ltc->t_werasc = cc[VWERASE];
191 ltc->t_lnextc = cc[VLNEXT];
192 break;
193 }
194 case TIOCLBIS:
195 case TIOCLBIC:
196 case TIOCLSET: {
197 struct termios term;
198 int flags;
199
200 term = tp->t_termios;
201 flags = ttcompatgetflags(tp);
202 switch (com) {
203 case TIOCLSET:
204 tp->t_flags = (flags&0xffff) | (*(int *)data<<16);
205 break;
206 case TIOCLBIS:
207 tp->t_flags = flags | (*(int *)data<<16);
208 break;
209 case TIOCLBIC:
210 tp->t_flags = flags & ~(*(int *)data<<16);
211 break;
212 }
213 ttcompatsetlflags(tp, &term);
214 return (ttioctl(tp, TIOCSETA, (void *)&term, flag, l));
215 }
216 case TIOCLGET:
217 *(int *)data = ttcompatgetflags(tp)>>16;
218 if (ttydebug)
219 printf("CLGET: returning %x\n", *(int *)data);
220 break;
221
222 case OTIOCGETD:
223 *(int *)data = (tp->t_linesw == NULL) ?
224 2 /* XXX old NTTYDISC */ : tp->t_linesw->l_no;
225 break;
226
227 case OTIOCSETD: {
228 int ldisczero = 0;
229
230 return (ttioctl(tp, TIOCSETD,
231 *(int *)data == 2 ? (void *)&ldisczero : data, flag,
232 l));
233 }
234
235 case OTIOCCONS:
236 *(int *)data = 1;
237 return (ttioctl(tp, TIOCCONS, data, flag, l));
238
239 case TIOCHPCL:
240 SET(tp->t_cflag, HUPCL);
241 break;
242
243 case TIOCGSID:
244 if (tp->t_session == NULL)
245 return ENOTTY;
246
247 if (tp->t_session->s_leader == NULL)
248 return ENOTTY;
249
250 *(int *) data = tp->t_session->s_leader->p_pid;
251 break;
252
253 default:
254 return (EPASSTHROUGH);
255 }
256 return (0);
257 }
258
259 int
260 ttcompatgetflags(tp)
261 struct tty *tp;
262 {
263 tcflag_t iflag = tp->t_iflag;
264 tcflag_t lflag = tp->t_lflag;
265 tcflag_t oflag = tp->t_oflag;
266 tcflag_t cflag = tp->t_cflag;
267 int flags = 0;
268
269 if (ISSET(iflag, IXOFF))
270 SET(flags, TANDEM);
271 if (ISSET(iflag, ICRNL) || ISSET(oflag, ONLCR))
272 SET(flags, CRMOD);
273 if (ISSET(cflag, PARENB)) {
274 if (ISSET(iflag, INPCK)) {
275 if (ISSET(cflag, PARODD))
276 SET(flags, ODDP);
277 else
278 SET(flags, EVENP);
279 } else
280 SET(flags, ANYP);
281 }
282
283 if (!ISSET(lflag, ICANON)) {
284 /* fudge */
285 if (ISSET(iflag, IXON) || ISSET(lflag, ISIG|IEXTEN) ||
286 ISSET(cflag, PARENB))
287 SET(flags, CBREAK);
288 else
289 SET(flags, RAW);
290 }
291
292 if (ISSET(flags, RAW))
293 SET(flags, ISSET(tp->t_flags, LITOUT|PASS8));
294 else if (ISSET(cflag, CSIZE) == CS8) {
295 if (!ISSET(oflag, OPOST))
296 SET(flags, LITOUT);
297 if (!ISSET(iflag, ISTRIP))
298 SET(flags, PASS8);
299 }
300
301 if (ISSET(cflag, MDMBUF))
302 SET(flags, MDMBUF);
303 if (!ISSET(cflag, HUPCL))
304 SET(flags, NOHANG);
305 if (ISSET(oflag, OXTABS))
306 SET(flags, XTABS);
307 if (ISSET(lflag, ECHOE))
308 SET(flags, CRTERA|CRTBS);
309 if (ISSET(lflag, ECHOKE))
310 SET(flags, CRTKIL|CRTBS);
311 if (ISSET(lflag, ECHOPRT))
312 SET(flags, PRTERA);
313 if (ISSET(lflag, ECHOCTL))
314 SET(flags, CTLECH);
315 if (!ISSET(iflag, IXANY))
316 SET(flags, DECCTQ);
317 SET(flags, ISSET(lflag, ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH));
318 if (ttydebug)
319 printf("getflags: %x\n", flags);
320 return (flags);
321 }
322
323 void
324 ttcompatsetflags(tp, t)
325 struct tty *tp;
326 struct termios *t;
327 {
328 int flags = tp->t_flags;
329 tcflag_t iflag = t->c_iflag;
330 tcflag_t oflag = t->c_oflag;
331 tcflag_t lflag = t->c_lflag;
332 tcflag_t cflag = t->c_cflag;
333
334 if (ISSET(flags, TANDEM))
335 SET(iflag, IXOFF);
336 else
337 CLR(iflag, IXOFF);
338 if (ISSET(flags, ECHO))
339 SET(lflag, ECHO);
340 else
341 CLR(lflag, ECHO);
342 if (ISSET(flags, CRMOD)) {
343 SET(iflag, ICRNL);
344 SET(oflag, ONLCR);
345 } else {
346 CLR(iflag, ICRNL);
347 CLR(oflag, ONLCR);
348 }
349 if (ISSET(flags, XTABS))
350 SET(oflag, OXTABS);
351 else
352 CLR(oflag, OXTABS);
353
354
355 if (ISSET(flags, RAW)) {
356 iflag &= IXOFF;
357 CLR(lflag, ISIG|ICANON|IEXTEN);
358 CLR(cflag, PARENB);
359 } else {
360 SET(iflag, BRKINT|IXON|IMAXBEL);
361 SET(lflag, ISIG|IEXTEN);
362 if (ISSET(flags, CBREAK))
363 CLR(lflag, ICANON);
364 else
365 SET(lflag, ICANON);
366 switch (ISSET(flags, ANYP)) {
367 case 0:
368 CLR(cflag, PARENB);
369 break;
370 case ANYP:
371 SET(cflag, PARENB);
372 CLR(iflag, INPCK);
373 break;
374 case EVENP:
375 SET(cflag, PARENB);
376 SET(iflag, INPCK);
377 CLR(cflag, PARODD);
378 break;
379 case ODDP:
380 SET(cflag, PARENB);
381 SET(iflag, INPCK);
382 SET(cflag, PARODD);
383 break;
384 }
385 }
386
387 if (ISSET(flags, RAW|LITOUT|PASS8)) {
388 CLR(cflag, CSIZE);
389 SET(cflag, CS8);
390 if (!ISSET(flags, RAW|PASS8))
391 SET(iflag, ISTRIP);
392 else
393 CLR(iflag, ISTRIP);
394 if (!ISSET(flags, RAW|LITOUT))
395 SET(oflag, OPOST);
396 else
397 CLR(oflag, OPOST);
398 } else {
399 CLR(cflag, CSIZE);
400 SET(cflag, CS7);
401 SET(iflag, ISTRIP);
402 SET(oflag, OPOST);
403 }
404
405 t->c_iflag = iflag;
406 t->c_oflag = oflag;
407 t->c_lflag = lflag;
408 t->c_cflag = cflag;
409 }
410
411 void
412 ttcompatsetlflags(tp, t)
413 struct tty *tp;
414 struct termios *t;
415 {
416 int flags = tp->t_flags;
417 tcflag_t iflag = t->c_iflag;
418 tcflag_t oflag = t->c_oflag;
419 tcflag_t lflag = t->c_lflag;
420 tcflag_t cflag = t->c_cflag;
421
422 /* Nothing we can do with CRTBS. */
423 if (ISSET(flags, PRTERA))
424 SET(lflag, ECHOPRT);
425 else
426 CLR(lflag, ECHOPRT);
427 if (ISSET(flags, CRTERA))
428 SET(lflag, ECHOE);
429 else
430 CLR(lflag, ECHOE);
431 /* Nothing we can do with TILDE. */
432 if (ISSET(flags, MDMBUF))
433 SET(cflag, MDMBUF);
434 else
435 CLR(cflag, MDMBUF);
436 if (ISSET(flags, NOHANG))
437 CLR(cflag, HUPCL);
438 else
439 SET(cflag, HUPCL);
440 if (ISSET(flags, CRTKIL))
441 SET(lflag, ECHOKE);
442 else
443 CLR(lflag, ECHOKE);
444 if (ISSET(flags, CTLECH))
445 SET(lflag, ECHOCTL);
446 else
447 CLR(lflag, ECHOCTL);
448 if (!ISSET(flags, DECCTQ))
449 SET(iflag, IXANY);
450 else
451 CLR(iflag, IXANY);
452 CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
453 SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
454
455 if (ISSET(flags, RAW|LITOUT|PASS8)) {
456 CLR(cflag, CSIZE);
457 SET(cflag, CS8);
458 if (!ISSET(flags, RAW|PASS8))
459 SET(iflag, ISTRIP);
460 else
461 CLR(iflag, ISTRIP);
462 if (!ISSET(flags, RAW|LITOUT))
463 SET(oflag, OPOST);
464 else
465 CLR(oflag, OPOST);
466 } else {
467 CLR(cflag, CSIZE);
468 SET(cflag, CS7);
469 SET(iflag, ISTRIP);
470 SET(oflag, OPOST);
471 }
472
473 t->c_iflag = iflag;
474 t->c_oflag = oflag;
475 t->c_lflag = lflag;
476 t->c_cflag = cflag;
477 }
478
479 #endif /* COMPAT_OLDTTY */
480