xref: /freebsd/sys/compat/linux/linux_ioctl.c (revision eba4802243eef298fb77a495b6a99477cdd48917)
1 /*
2  * Copyright (c) 1994-1995 S�ren Schmidt
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer
10  *    in this position and unchanged.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software withough specific prior written permission
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/sysproto.h>
34 #include <sys/proc.h>
35 #include <sys/cdio.h>
36 #include <sys/consio.h>
37 #include <sys/fcntl.h>
38 #include <sys/file.h>
39 #include <sys/filedesc.h>
40 #include <sys/filio.h>
41 #include <sys/kbio.h>
42 #include <sys/linker_set.h>
43 #include <sys/malloc.h>
44 #include <sys/tty.h>
45 #include <sys/socket.h>
46 #include <net/if.h>
47 #include <net/if_dl.h>
48 #include <net/if_types.h>
49 #include <sys/sockio.h>
50 #include <sys/soundcard.h>
51 #include <sys/disklabel.h>
52 
53 #include <machine/../linux/linux.h>
54 #include <machine/../linux/linux_proto.h>
55 
56 #ifdef __alpha__
57 #include <machine/../linux/linux_ioctl.h>
58 #else
59 #include <compat/linux/linux_ioctl.h>
60 #endif
61 #include <compat/linux/linux_mib.h>
62 #include <compat/linux/linux_util.h>
63 
64 static linux_ioctl_function_t linux_ioctl_cdrom;
65 static linux_ioctl_function_t linux_ioctl_console;
66 static linux_ioctl_function_t linux_ioctl_disk;
67 static linux_ioctl_function_t linux_ioctl_socket;
68 static linux_ioctl_function_t linux_ioctl_sound;
69 static linux_ioctl_function_t linux_ioctl_termio;
70 
71 static struct linux_ioctl_handler cdrom_handler =
72 { linux_ioctl_cdrom, LINUX_IOCTL_CDROM_MIN, LINUX_IOCTL_CDROM_MAX };
73 static struct linux_ioctl_handler console_handler =
74 { linux_ioctl_console, LINUX_IOCTL_CONSOLE_MIN, LINUX_IOCTL_CONSOLE_MAX };
75 static struct linux_ioctl_handler disk_handler =
76 { linux_ioctl_disk, LINUX_IOCTL_DISK_MIN, LINUX_IOCTL_DISK_MAX };
77 static struct linux_ioctl_handler socket_handler =
78 { linux_ioctl_socket, LINUX_IOCTL_SOCKET_MIN, LINUX_IOCTL_SOCKET_MAX };
79 static struct linux_ioctl_handler sound_handler =
80 { linux_ioctl_sound, LINUX_IOCTL_SOUND_MIN, LINUX_IOCTL_SOUND_MAX };
81 static struct linux_ioctl_handler termio_handler =
82 { linux_ioctl_termio, LINUX_IOCTL_TERMIO_MIN, LINUX_IOCTL_TERMIO_MAX };
83 
84 DATA_SET(linux_ioctl_handler_set, cdrom_handler);
85 DATA_SET(linux_ioctl_handler_set, console_handler);
86 DATA_SET(linux_ioctl_handler_set, disk_handler);
87 DATA_SET(linux_ioctl_handler_set, socket_handler);
88 DATA_SET(linux_ioctl_handler_set, sound_handler);
89 DATA_SET(linux_ioctl_handler_set, termio_handler);
90 
91 struct handler_element
92 {
93 	TAILQ_ENTRY(handler_element) list;
94 	int	(*func)(struct proc *, struct linux_ioctl_args *);
95 	int	low, high, span;
96 };
97 
98 static TAILQ_HEAD(, handler_element) handlers =
99 	TAILQ_HEAD_INITIALIZER(handlers);
100 
101 static int
102 linux_ioctl_disk(struct proc *p, struct linux_ioctl_args *args)
103 {
104 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
105 	int error;
106 	struct disklabel dl;
107 
108 	switch (args->cmd & 0xffff) {
109 	case LINUX_BLKGETSIZE:
110 		error = fo_ioctl(fp, DIOCGDINFO, (caddr_t)&dl, p);
111 		if (error)
112 			return (error);
113 		return copyout(&(dl.d_secperunit), (caddr_t)args->arg, sizeof(dl.d_secperunit));
114 		break;
115 	}
116 	return (ENOIOCTL);
117 }
118 
119 /*
120  * termio related ioctls
121  */
122 
123 struct linux_termio {
124 	unsigned short c_iflag;
125 	unsigned short c_oflag;
126 	unsigned short c_cflag;
127 	unsigned short c_lflag;
128 	unsigned char c_line;
129 	unsigned char c_cc[LINUX_NCC];
130 };
131 
132 struct linux_termios {
133 	unsigned int c_iflag;
134 	unsigned int c_oflag;
135 	unsigned int c_cflag;
136 	unsigned int c_lflag;
137 #ifdef __alpha__
138 	unsigned char c_cc[LINUX_NCCS];
139 	unsigned char c_line;
140 	unsigned int  c_ispeed;
141 	unsigned int  c_ospeed;
142 #else
143 	unsigned char c_line;
144 	unsigned char c_cc[LINUX_NCCS];
145 #endif
146 };
147 
148 struct linux_winsize {
149 	unsigned short ws_row, ws_col;
150 	unsigned short ws_xpixel, ws_ypixel;
151 };
152 
153 static struct speedtab sptab[] = {
154 	{ B0, LINUX_B0 }, { B50, LINUX_B50 },
155 	{ B75, LINUX_B75 }, { B110, LINUX_B110 },
156 	{ B134, LINUX_B134 }, { B150, LINUX_B150 },
157 	{ B200, LINUX_B200 }, { B300, LINUX_B300 },
158 	{ B600, LINUX_B600 }, { B1200, LINUX_B1200 },
159 	{ B1800, LINUX_B1800 }, { B2400, LINUX_B2400 },
160 	{ B4800, LINUX_B4800 }, { B9600, LINUX_B9600 },
161 	{ B19200, LINUX_B19200 }, { B38400, LINUX_B38400 },
162 	{ B57600, LINUX_B57600 }, { B115200, LINUX_B115200 },
163 	{-1, -1 }
164 };
165 
166 struct linux_serial_struct {
167 	int	type;
168 	int	line;
169 	int	port;
170 	int	irq;
171 	int	flags;
172 	int	xmit_fifo_size;
173 	int	custom_divisor;
174 	int	baud_base;
175 	unsigned short close_delay;
176 	char	reserved_char[2];
177 	int	hub6;
178 	unsigned short closing_wait;
179 	unsigned short closing_wait2;
180 	int	reserved[4];
181 };
182 
183 static int
184 linux_to_bsd_speed(int code, struct speedtab *table)
185 {
186 	for ( ; table->sp_code != -1; table++)
187 		if (table->sp_code == code)
188 			return (table->sp_speed);
189 	return -1;
190 }
191 
192 static int
193 bsd_to_linux_speed(int speed, struct speedtab *table)
194 {
195 	for ( ; table->sp_speed != -1; table++)
196 		if (table->sp_speed == speed)
197 			return (table->sp_code);
198 	return -1;
199 }
200 
201 static void
202 bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
203 {
204 	int i;
205 
206 #ifdef DEBUG
207 	printf("LINUX: BSD termios structure (input):\n");
208 	printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
209 	    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
210 	    bios->c_ispeed, bios->c_ospeed);
211 	printf("c_cc ");
212 	for (i=0; i<NCCS; i++)
213 		printf("%02x ", bios->c_cc[i]);
214 	printf("\n");
215 #endif
216 
217 	lios->c_iflag = 0;
218 	if (bios->c_iflag & IGNBRK)
219 		lios->c_iflag |= LINUX_IGNBRK;
220 	if (bios->c_iflag & BRKINT)
221 		lios->c_iflag |= LINUX_BRKINT;
222 	if (bios->c_iflag & IGNPAR)
223 		lios->c_iflag |= LINUX_IGNPAR;
224 	if (bios->c_iflag & PARMRK)
225 		lios->c_iflag |= LINUX_PARMRK;
226 	if (bios->c_iflag & INPCK)
227 		lios->c_iflag |= LINUX_INPCK;
228 	if (bios->c_iflag & ISTRIP)
229 		lios->c_iflag |= LINUX_ISTRIP;
230 	if (bios->c_iflag & INLCR)
231 		lios->c_iflag |= LINUX_INLCR;
232 	if (bios->c_iflag & IGNCR)
233 		lios->c_iflag |= LINUX_IGNCR;
234 	if (bios->c_iflag & ICRNL)
235 		lios->c_iflag |= LINUX_ICRNL;
236 	if (bios->c_iflag & IXON)
237 		lios->c_iflag |= LINUX_IXON;
238 	if (bios->c_iflag & IXANY)
239 		lios->c_iflag |= LINUX_IXANY;
240 	if (bios->c_iflag & IXOFF)
241 		lios->c_iflag |= LINUX_IXOFF;
242 	if (bios->c_iflag & IMAXBEL)
243 		lios->c_iflag |= LINUX_IMAXBEL;
244 
245 	lios->c_oflag = 0;
246 	if (bios->c_oflag & OPOST)
247 		lios->c_oflag |= LINUX_OPOST;
248 	if (bios->c_oflag & ONLCR)
249 		lios->c_oflag |= LINUX_ONLCR;
250 	if (bios->c_oflag & OXTABS)
251 		lios->c_oflag |= LINUX_XTABS;
252 
253 	lios->c_cflag = bsd_to_linux_speed(bios->c_ispeed, sptab);
254 	lios->c_cflag |= (bios->c_cflag & CSIZE) >> 4;
255 	if (bios->c_cflag & CSTOPB)
256 		lios->c_cflag |= LINUX_CSTOPB;
257 	if (bios->c_cflag & CREAD)
258 		lios->c_cflag |= LINUX_CREAD;
259 	if (bios->c_cflag & PARENB)
260 		lios->c_cflag |= LINUX_PARENB;
261 	if (bios->c_cflag & PARODD)
262 		lios->c_cflag |= LINUX_PARODD;
263 	if (bios->c_cflag & HUPCL)
264 		lios->c_cflag |= LINUX_HUPCL;
265 	if (bios->c_cflag & CLOCAL)
266 		lios->c_cflag |= LINUX_CLOCAL;
267 	if (bios->c_cflag & CRTSCTS)
268 		lios->c_cflag |= LINUX_CRTSCTS;
269 
270 	lios->c_lflag = 0;
271 	if (bios->c_lflag & ISIG)
272 		lios->c_lflag |= LINUX_ISIG;
273 	if (bios->c_lflag & ICANON)
274 		lios->c_lflag |= LINUX_ICANON;
275 	if (bios->c_lflag & ECHO)
276 		lios->c_lflag |= LINUX_ECHO;
277 	if (bios->c_lflag & ECHOE)
278 		lios->c_lflag |= LINUX_ECHOE;
279 	if (bios->c_lflag & ECHOK)
280 		lios->c_lflag |= LINUX_ECHOK;
281 	if (bios->c_lflag & ECHONL)
282 		lios->c_lflag |= LINUX_ECHONL;
283 	if (bios->c_lflag & NOFLSH)
284 		lios->c_lflag |= LINUX_NOFLSH;
285 	if (bios->c_lflag & TOSTOP)
286 		lios->c_lflag |= LINUX_TOSTOP;
287 	if (bios->c_lflag & ECHOCTL)
288 		lios->c_lflag |= LINUX_ECHOCTL;
289 	if (bios->c_lflag & ECHOPRT)
290 		lios->c_lflag |= LINUX_ECHOPRT;
291 	if (bios->c_lflag & ECHOKE)
292 		lios->c_lflag |= LINUX_ECHOKE;
293 	if (bios->c_lflag & FLUSHO)
294 		lios->c_lflag |= LINUX_FLUSHO;
295 	if (bios->c_lflag & PENDIN)
296 		lios->c_lflag |= LINUX_PENDIN;
297 	if (bios->c_lflag & IEXTEN)
298 		lios->c_lflag |= LINUX_IEXTEN;
299 
300 	for (i=0; i<LINUX_NCCS; i++)
301 		lios->c_cc[i] = LINUX_POSIX_VDISABLE;
302 	lios->c_cc[LINUX_VINTR] = bios->c_cc[VINTR];
303 	lios->c_cc[LINUX_VQUIT] = bios->c_cc[VQUIT];
304 	lios->c_cc[LINUX_VERASE] = bios->c_cc[VERASE];
305 	lios->c_cc[LINUX_VKILL] = bios->c_cc[VKILL];
306 	lios->c_cc[LINUX_VEOF] = bios->c_cc[VEOF];
307 	lios->c_cc[LINUX_VEOL] = bios->c_cc[VEOL];
308 	lios->c_cc[LINUX_VMIN] = bios->c_cc[VMIN];
309 	lios->c_cc[LINUX_VTIME] = bios->c_cc[VTIME];
310 	lios->c_cc[LINUX_VEOL2] = bios->c_cc[VEOL2];
311 	lios->c_cc[LINUX_VSUSP] = bios->c_cc[VSUSP];
312 	lios->c_cc[LINUX_VSTART] = bios->c_cc[VSTART];
313 	lios->c_cc[LINUX_VSTOP] = bios->c_cc[VSTOP];
314 	lios->c_cc[LINUX_VREPRINT] = bios->c_cc[VREPRINT];
315 	lios->c_cc[LINUX_VDISCARD] = bios->c_cc[VDISCARD];
316 	lios->c_cc[LINUX_VWERASE] = bios->c_cc[VWERASE];
317 	lios->c_cc[LINUX_VLNEXT] = bios->c_cc[VLNEXT];
318 
319 	for (i=0; i<LINUX_NCCS; i++) {
320 		if (lios->c_cc[i] == _POSIX_VDISABLE)
321 			lios->c_cc[i] = LINUX_POSIX_VDISABLE;
322 	}
323 	lios->c_line = 0;
324 
325 #ifdef DEBUG
326 	printf("LINUX: LINUX termios structure (output):\n");
327 	printf("i=%08x o=%08x c=%08x l=%08x line=%d\n", lios->c_iflag,
328 	    lios->c_oflag, lios->c_cflag, lios->c_lflag, (int)lios->c_line);
329 	printf("c_cc ");
330 	for (i=0; i<LINUX_NCCS; i++)
331 		printf("%02x ", lios->c_cc[i]);
332 	printf("\n");
333 #endif
334 }
335 
336 static void
337 linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
338 {
339 	int i;
340 
341 #ifdef DEBUG
342 	printf("LINUX: LINUX termios structure (input):\n");
343 	printf("i=%08x o=%08x c=%08x l=%08x line=%d\n", lios->c_iflag,
344 	    lios->c_oflag, lios->c_cflag, lios->c_lflag, (int)lios->c_line);
345 	printf("c_cc ");
346 	for (i=0; i<LINUX_NCCS; i++)
347 		printf("%02x ", lios->c_cc[i]);
348 	printf("\n");
349 #endif
350 
351 	bios->c_iflag = 0;
352 	if (lios->c_iflag & LINUX_IGNBRK)
353 		bios->c_iflag |= IGNBRK;
354 	if (lios->c_iflag & LINUX_BRKINT)
355 		bios->c_iflag |= BRKINT;
356 	if (lios->c_iflag & LINUX_IGNPAR)
357 		bios->c_iflag |= IGNPAR;
358 	if (lios->c_iflag & LINUX_PARMRK)
359 		bios->c_iflag |= PARMRK;
360 	if (lios->c_iflag & LINUX_INPCK)
361 		bios->c_iflag |= INPCK;
362 	if (lios->c_iflag & LINUX_ISTRIP)
363 		bios->c_iflag |= ISTRIP;
364 	if (lios->c_iflag & LINUX_INLCR)
365 		bios->c_iflag |= INLCR;
366 	if (lios->c_iflag & LINUX_IGNCR)
367 		bios->c_iflag |= IGNCR;
368 	if (lios->c_iflag & LINUX_ICRNL)
369 		bios->c_iflag |= ICRNL;
370 	if (lios->c_iflag & LINUX_IXON)
371 		bios->c_iflag |= IXON;
372 	if (lios->c_iflag & LINUX_IXANY)
373 		bios->c_iflag |= IXANY;
374 	if (lios->c_iflag & LINUX_IXOFF)
375 		bios->c_iflag |= IXOFF;
376 	if (lios->c_iflag & LINUX_IMAXBEL)
377 		bios->c_iflag |= IMAXBEL;
378 
379 	bios->c_oflag = 0;
380 	if (lios->c_oflag & LINUX_OPOST)
381 		bios->c_oflag |= OPOST;
382 	if (lios->c_oflag & LINUX_ONLCR)
383 		bios->c_oflag |= ONLCR;
384 	if (lios->c_oflag & LINUX_XTABS)
385 		bios->c_oflag |= OXTABS;
386 
387 	bios->c_cflag = (lios->c_cflag & LINUX_CSIZE) << 4;
388 	if (lios->c_cflag & LINUX_CSTOPB)
389 		bios->c_cflag |= CSTOPB;
390 	if (lios->c_cflag & LINUX_CREAD)
391 		bios->c_cflag |= CREAD;
392 	if (lios->c_cflag & LINUX_PARENB)
393 		bios->c_cflag |= PARENB;
394 	if (lios->c_cflag & LINUX_PARODD)
395 		bios->c_cflag |= PARODD;
396 	if (lios->c_cflag & LINUX_HUPCL)
397 		bios->c_cflag |= HUPCL;
398 	if (lios->c_cflag & LINUX_CLOCAL)
399 		bios->c_cflag |= CLOCAL;
400 	if (lios->c_cflag & LINUX_CRTSCTS)
401 		bios->c_cflag |= CRTSCTS;
402 
403 	bios->c_lflag = 0;
404 	if (lios->c_lflag & LINUX_ISIG)
405 		bios->c_lflag |= ISIG;
406 	if (lios->c_lflag & LINUX_ICANON)
407 		bios->c_lflag |= ICANON;
408 	if (lios->c_lflag & LINUX_ECHO)
409 		bios->c_lflag |= ECHO;
410 	if (lios->c_lflag & LINUX_ECHOE)
411 		bios->c_lflag |= ECHOE;
412 	if (lios->c_lflag & LINUX_ECHOK)
413 		bios->c_lflag |= ECHOK;
414 	if (lios->c_lflag & LINUX_ECHONL)
415 		bios->c_lflag |= ECHONL;
416 	if (lios->c_lflag & LINUX_NOFLSH)
417 		bios->c_lflag |= NOFLSH;
418 	if (lios->c_lflag & LINUX_TOSTOP)
419 		bios->c_lflag |= TOSTOP;
420 	if (lios->c_lflag & LINUX_ECHOCTL)
421 		bios->c_lflag |= ECHOCTL;
422 	if (lios->c_lflag & LINUX_ECHOPRT)
423 		bios->c_lflag |= ECHOPRT;
424 	if (lios->c_lflag & LINUX_ECHOKE)
425 		bios->c_lflag |= ECHOKE;
426 	if (lios->c_lflag & LINUX_FLUSHO)
427 		bios->c_lflag |= FLUSHO;
428 	if (lios->c_lflag & LINUX_PENDIN)
429 		bios->c_lflag |= PENDIN;
430 	if (lios->c_lflag & LINUX_IEXTEN)
431 		bios->c_lflag |= IEXTEN;
432 
433 	for (i=0; i<NCCS; i++)
434 		bios->c_cc[i] = _POSIX_VDISABLE;
435 	bios->c_cc[VINTR] = lios->c_cc[LINUX_VINTR];
436 	bios->c_cc[VQUIT] = lios->c_cc[LINUX_VQUIT];
437 	bios->c_cc[VERASE] = lios->c_cc[LINUX_VERASE];
438 	bios->c_cc[VKILL] = lios->c_cc[LINUX_VKILL];
439 	bios->c_cc[VEOF] = lios->c_cc[LINUX_VEOF];
440 	bios->c_cc[VEOL] = lios->c_cc[LINUX_VEOL];
441 	bios->c_cc[VMIN] = lios->c_cc[LINUX_VMIN];
442 	bios->c_cc[VTIME] = lios->c_cc[LINUX_VTIME];
443 	bios->c_cc[VEOL2] = lios->c_cc[LINUX_VEOL2];
444 	bios->c_cc[VSUSP] = lios->c_cc[LINUX_VSUSP];
445 	bios->c_cc[VSTART] = lios->c_cc[LINUX_VSTART];
446 	bios->c_cc[VSTOP] = lios->c_cc[LINUX_VSTOP];
447 	bios->c_cc[VREPRINT] = lios->c_cc[LINUX_VREPRINT];
448 	bios->c_cc[VDISCARD] = lios->c_cc[LINUX_VDISCARD];
449 	bios->c_cc[VWERASE] = lios->c_cc[LINUX_VWERASE];
450 	bios->c_cc[VLNEXT] = lios->c_cc[LINUX_VLNEXT];
451 
452 	for (i=0; i<NCCS; i++) {
453 		if (bios->c_cc[i] == LINUX_POSIX_VDISABLE)
454 			bios->c_cc[i] = _POSIX_VDISABLE;
455 	}
456 
457 	bios->c_ispeed = bios->c_ospeed =
458 	    linux_to_bsd_speed(lios->c_cflag & LINUX_CBAUD, sptab);
459 
460 #ifdef DEBUG
461 	printf("LINUX: BSD termios structure (output):\n");
462 	printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
463 	    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
464 	    bios->c_ispeed, bios->c_ospeed);
465 	printf("c_cc ");
466 	for (i=0; i<NCCS; i++)
467 		printf("%02x ", bios->c_cc[i]);
468 	printf("\n");
469 #endif
470 }
471 
472 static void
473 bsd_to_linux_termio(struct termios *bios, struct linux_termio *lio)
474 {
475 	struct linux_termios lios;
476 
477 	bsd_to_linux_termios(bios, &lios);
478 	lio->c_iflag = lios.c_iflag;
479 	lio->c_oflag = lios.c_oflag;
480 	lio->c_cflag = lios.c_cflag;
481 	lio->c_lflag = lios.c_lflag;
482 	lio->c_line  = lios.c_line;
483 	memcpy(lio->c_cc, lios.c_cc, LINUX_NCC);
484 }
485 
486 static void
487 linux_to_bsd_termio(struct linux_termio *lio, struct termios *bios)
488 {
489 	struct linux_termios lios;
490 	int i;
491 
492 	lios.c_iflag = lio->c_iflag;
493 	lios.c_oflag = lio->c_oflag;
494 	lios.c_cflag = lio->c_cflag;
495 	lios.c_lflag = lio->c_lflag;
496 	for (i=LINUX_NCC; i<LINUX_NCCS; i++)
497 		lios.c_cc[i] = LINUX_POSIX_VDISABLE;
498 	memcpy(lios.c_cc, lio->c_cc, LINUX_NCC);
499 	linux_to_bsd_termios(&lios, bios);
500 }
501 
502 static int
503 linux_ioctl_termio(struct proc *p, struct linux_ioctl_args *args)
504 {
505 	struct termios bios;
506 	struct linux_termios lios;
507 	struct linux_termio lio;
508 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
509 	int error;
510 
511 	switch (args->cmd & 0xffff) {
512 
513 	case LINUX_TCGETS:
514 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
515 		if (error)
516 			return (error);
517 		bsd_to_linux_termios(&bios, &lios);
518 		return copyout(&lios, (caddr_t)args->arg, sizeof(lios));
519 
520 	case LINUX_TCSETS:
521 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
522 		if (error)
523 			return (error);
524 		linux_to_bsd_termios(&lios, &bios);
525 		return (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, p));
526 
527 	case LINUX_TCSETSW:
528 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
529 		if (error)
530 			return (error);
531 		linux_to_bsd_termios(&lios, &bios);
532 		return (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, p));
533 
534 	case LINUX_TCSETSF:
535 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
536 		if (error)
537 			return (error);
538 		linux_to_bsd_termios(&lios, &bios);
539 		return (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, p));
540 
541 	case LINUX_TCGETA:
542 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
543 		if (error)
544 			return (error);
545 		bsd_to_linux_termio(&bios, &lio);
546 		return (copyout(&lio, (caddr_t)args->arg, sizeof(lio)));
547 
548 	case LINUX_TCSETA:
549 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
550 		if (error)
551 			return (error);
552 		linux_to_bsd_termio(&lio, &bios);
553 		return (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, p));
554 
555 	case LINUX_TCSETAW:
556 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
557 		if (error)
558 			return (error);
559 		linux_to_bsd_termio(&lio, &bios);
560 		return (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, p));
561 
562 	case LINUX_TCSETAF:
563 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
564 		if (error)
565 			return (error);
566 		linux_to_bsd_termio(&lio, &bios);
567 		return (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, p));
568 
569 	/* LINUX_TCSBRK */
570 
571 	case LINUX_TCXONC: {
572 		switch (args->arg) {
573 		case LINUX_TCOOFF:
574 			args->cmd = TIOCSTOP;
575 			break;
576 		case LINUX_TCOON:
577 			args->cmd = TIOCSTART;
578 			break;
579 		case LINUX_TCIOFF:
580 		case LINUX_TCION: {
581 			int c;
582 			struct write_args wr;
583 			error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
584 			if (error)
585 				return (error);
586 			c = (args->arg == LINUX_TCIOFF) ? VSTOP : VSTART;
587 			c = bios.c_cc[c];
588 			if (c != _POSIX_VDISABLE) {
589 				wr.fd = args->fd;
590 				wr.buf = &c;
591 				wr.nbyte = sizeof(c);
592 				return (write(p, &wr));
593 			} else
594 				return (0);
595 		}
596 		default:
597 			return (EINVAL);
598 		}
599 		args->arg = 0;
600 		return (ioctl(p, (struct ioctl_args *)args));
601 	}
602 
603 	case LINUX_TCFLSH: {
604 		args->cmd = TIOCFLUSH;
605 		switch (args->arg) {
606 		case LINUX_TCIFLUSH:
607 			args->arg = FREAD;
608 			break;
609 		case LINUX_TCOFLUSH:
610 			args->arg = FWRITE;
611 			break;
612 		case LINUX_TCIOFLUSH:
613 			args->arg = FREAD | FWRITE;
614 			break;
615 		default:
616 			return (EINVAL);
617 		}
618 		return (ioctl(p, (struct ioctl_args *)args));
619 	}
620 
621 	case LINUX_TIOCEXCL:
622 		args->cmd = TIOCEXCL;
623 		return (ioctl(p, (struct ioctl_args *)args));
624 
625 	case LINUX_TIOCNXCL:
626 		args->cmd = TIOCNXCL;
627 		return (ioctl(p, (struct ioctl_args *)args));
628 
629 	/* LINUX_TIOCSCTTY */
630 
631 	case LINUX_TIOCGPGRP:
632 		args->cmd = TIOCGPGRP;
633 		return (ioctl(p, (struct ioctl_args *)args));
634 
635 	case LINUX_TIOCSPGRP:
636 		args->cmd = TIOCSPGRP;
637 		return (ioctl(p, (struct ioctl_args *)args));
638 
639 	/* LINUX_TIOCOUTQ */
640 	/* LINUX_TIOCSTI */
641 
642 	case LINUX_TIOCGWINSZ:
643 		args->cmd = TIOCGWINSZ;
644 		return (ioctl(p, (struct ioctl_args *)args));
645 
646 	case LINUX_TIOCSWINSZ:
647 		args->cmd = TIOCSWINSZ;
648 		return (ioctl(p, (struct ioctl_args *)args));
649 
650 	case LINUX_TIOCMGET:
651 		args->cmd = TIOCMGET;
652 		return (ioctl(p, (struct ioctl_args *)args));
653 
654 	case LINUX_TIOCMBIS:
655 		args->cmd = TIOCMBIS;
656 		return (ioctl(p, (struct ioctl_args *)args));
657 
658 	case LINUX_TIOCMBIC:
659 		args->cmd = TIOCMBIC;
660 		return (ioctl(p, (struct ioctl_args *)args));
661 
662 	case LINUX_TIOCMSET:
663 		args->cmd = TIOCMSET;
664 		return (ioctl(p, (struct ioctl_args *)args));
665 
666 	/* TIOCGSOFTCAR */
667 	/* TIOCSSOFTCAR */
668 
669 	case LINUX_FIONREAD: /* LINUX_TIOCINQ */
670 		args->cmd = FIONREAD;
671 		return (ioctl(p, (struct ioctl_args *)args));
672 
673 	/* LINUX_TIOCLINUX */
674 
675 	case LINUX_TIOCCONS:
676 		args->cmd = TIOCCONS;
677 		return (ioctl(p, (struct ioctl_args *)args));
678 
679 	case LINUX_TIOCGSERIAL: {
680 		struct linux_serial_struct lss;
681 		lss.type = LINUX_PORT_16550A;
682 		lss.flags = 0;
683 		lss.close_delay = 0;
684 		return copyout(&lss, (caddr_t)args->arg, sizeof(lss));
685 	}
686 
687 	case LINUX_TIOCSSERIAL: {
688 		struct linux_serial_struct lss;
689 		error = copyin((caddr_t)args->arg, &lss, sizeof(lss));
690 		if (error)
691 			return (error);
692 		/* XXX - It really helps to have an implementation that
693 		 * does nothing. NOT!
694 		 */
695 		return (0);
696 	}
697 
698 	/* LINUX_TIOCPKT */
699 
700 	case LINUX_FIONBIO:
701 		args->cmd = FIONBIO;
702 		return (ioctl(p, (struct ioctl_args *)args));
703 
704 	case LINUX_TIOCNOTTY:
705 		args->cmd = TIOCNOTTY;
706 		return (ioctl(p, (struct ioctl_args *)args));
707 
708 	case LINUX_TIOCSETD: {
709 		int line;
710 		switch (args->arg) {
711 		case LINUX_N_TTY:
712 			line = TTYDISC;
713 			break;
714 		case LINUX_N_SLIP:
715 			line = SLIPDISC;
716 			break;
717 		case LINUX_N_PPP:
718 			line = PPPDISC;
719 			break;
720 		default:
721 			return (EINVAL);
722 		}
723 		return (fo_ioctl(fp, TIOCSETD, (caddr_t)&line, p));
724 	}
725 
726 	case LINUX_TIOCGETD: {
727 		int linux_line;
728 		int bsd_line = TTYDISC;
729 		error = fo_ioctl(fp, TIOCGETD, (caddr_t)&bsd_line, p);
730 		if (error)
731 			return (error);
732 		switch (bsd_line) {
733 		case TTYDISC:
734 			linux_line = LINUX_N_TTY;
735 			break;
736 		case SLIPDISC:
737 			linux_line = LINUX_N_SLIP;
738 			break;
739 		case PPPDISC:
740 			linux_line = LINUX_N_PPP;
741 			break;
742 		default:
743 			return (EINVAL);
744 		}
745 		return (copyout(&linux_line, (caddr_t)args->arg, sizeof(int)));
746 	}
747 
748 	/* LINUX_TCSBRKP */
749 	/* LINUX_TIOCTTYGSTRUCT */
750 
751 	case LINUX_FIONCLEX:
752 		args->cmd = FIONCLEX;
753 		return (ioctl(p, (struct ioctl_args *)args));
754 
755 	case LINUX_FIOCLEX:
756 		args->cmd = FIOCLEX;
757 		return (ioctl(p, (struct ioctl_args *)args));
758 
759 	case LINUX_FIOASYNC:
760 		args->cmd = FIOASYNC;
761 		return (ioctl(p, (struct ioctl_args *)args));
762 
763 	/* LINUX_TIOCSERCONFIG */
764 	/* LINUX_TIOCSERGWILD */
765 	/* LINUX_TIOCSERSWILD */
766 	/* LINUX_TIOCGLCKTRMIOS */
767 	/* LINUX_TIOCSLCKTRMIOS */
768 
769 	}
770 
771 	return (ENOIOCTL);
772 }
773 
774 /*
775  * CDROM related ioctls
776  */
777 
778 struct linux_cdrom_msf
779 {
780 	u_char	cdmsf_min0;
781 	u_char	cdmsf_sec0;
782 	u_char	cdmsf_frame0;
783 	u_char	cdmsf_min1;
784 	u_char	cdmsf_sec1;
785 	u_char	cdmsf_frame1;
786 };
787 
788 struct linux_cdrom_tochdr
789 {
790 	u_char	cdth_trk0;
791 	u_char	cdth_trk1;
792 };
793 
794 union linux_cdrom_addr
795 {
796 	struct {
797 		u_char	minute;
798 		u_char	second;
799 		u_char	frame;
800 	} msf;
801 	int	lba;
802 };
803 
804 struct linux_cdrom_tocentry
805 {
806 	u_char	cdte_track;
807 	u_char	cdte_adr:4;
808 	u_char	cdte_ctrl:4;
809 	u_char	cdte_format;
810 	union linux_cdrom_addr cdte_addr;
811 	u_char	cdte_datamode;
812 };
813 
814 struct linux_cdrom_subchnl
815 {
816 	u_char	cdsc_format;
817 	u_char	cdsc_audiostatus;
818 	u_char	cdsc_adr:4;
819 	u_char	cdsc_ctrl:4;
820 	u_char	cdsc_trk;
821 	u_char	cdsc_ind;
822 	union linux_cdrom_addr cdsc_absaddr;
823 	union linux_cdrom_addr cdsc_reladdr;
824 };
825 
826 static void
827 bsd_to_linux_msf_lba(u_char af, union msf_lba *bp, union linux_cdrom_addr *lp)
828 {
829 	if (af == CD_LBA_FORMAT)
830 		lp->lba = bp->lba;
831 	else {
832 		lp->msf.minute = bp->msf.minute;
833 		lp->msf.second = bp->msf.second;
834 		lp->msf.frame = bp->msf.frame;
835 	}
836 }
837 
838 static void
839 set_linux_cdrom_addr(union linux_cdrom_addr *addr, int format, int lba)
840 {
841 	if (format == LINUX_CDROM_MSF) {
842 		addr->msf.frame = lba % 75;
843 		lba /= 75;
844 		lba += 2;
845 		addr->msf.second = lba % 60;
846 		addr->msf.minute = lba / 60;
847 	} else
848 		addr->lba = lba;
849 }
850 
851 static int
852 linux_ioctl_cdrom(struct proc *p, struct linux_ioctl_args *args)
853 {
854 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
855 	int error;
856 
857 	switch (args->cmd & 0xffff) {
858 
859 	case LINUX_CDROMPAUSE:
860 		args->cmd = CDIOCPAUSE;
861 		return (ioctl(p, (struct ioctl_args *)args));
862 
863 	case LINUX_CDROMRESUME:
864 		args->cmd = CDIOCRESUME;
865 		return (ioctl(p, (struct ioctl_args *)args));
866 
867 	case LINUX_CDROMPLAYMSF:
868 		args->cmd = CDIOCPLAYMSF;
869 		return (ioctl(p, (struct ioctl_args *)args));
870 
871 	case LINUX_CDROMPLAYTRKIND:
872 		args->cmd = CDIOCPLAYTRACKS;
873 		return (ioctl(p, (struct ioctl_args *)args));
874 
875 	case LINUX_CDROMREADTOCHDR: {
876 		struct ioc_toc_header th;
877 		struct linux_cdrom_tochdr lth;
878 		error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&th, p);
879 		if (!error) {
880 			lth.cdth_trk0 = th.starting_track;
881 			lth.cdth_trk1 = th.ending_track;
882 			copyout(&lth, (caddr_t)args->arg, sizeof(lth));
883 		}
884 		return (error);
885 	}
886 
887 	case LINUX_CDROMREADTOCENTRY: {
888 		struct linux_cdrom_tocentry lte, *ltep =
889 		    (struct linux_cdrom_tocentry *)args->arg;
890 		struct ioc_read_toc_single_entry irtse;
891 		irtse.address_format = ltep->cdte_format;
892 		irtse.track = ltep->cdte_track;
893 		error = fo_ioctl(fp, CDIOREADTOCENTRY, (caddr_t)&irtse, p);
894 		if (!error) {
895 			lte = *ltep;
896 			lte.cdte_ctrl = irtse.entry.control;
897 			lte.cdte_adr = irtse.entry.addr_type;
898 			bsd_to_linux_msf_lba(irtse.address_format,
899 			    &irtse.entry.addr, &lte.cdte_addr);
900 			copyout(&lte, (caddr_t)args->arg, sizeof(lte));
901 		}
902 		return (error);
903 	}
904 
905 	case LINUX_CDROMSTOP:
906 		args->cmd = CDIOCSTOP;
907 		return (ioctl(p, (struct ioctl_args *)args));
908 
909 	case LINUX_CDROMSTART:
910 		args->cmd = CDIOCSTART;
911 		return (ioctl(p, (struct ioctl_args *)args));
912 
913 	case LINUX_CDROMEJECT:
914 		args->cmd = CDIOCEJECT;
915 		return (ioctl(p, (struct ioctl_args *)args));
916 
917 	/* LINUX_CDROMVOLCTRL */
918 
919 	case LINUX_CDROMSUBCHNL: {
920 		struct linux_cdrom_subchnl sc;
921 		struct ioc_read_subchannel bsdsc;
922 		struct cd_sub_channel_info *bsdinfo;
923 		caddr_t sg = stackgap_init();
924 		bsdinfo = (struct cd_sub_channel_info*)stackgap_alloc(&sg,
925 		    sizeof(struct cd_sub_channel_info));
926 		bsdsc.address_format = CD_LBA_FORMAT;
927 		bsdsc.data_format = CD_CURRENT_POSITION;
928 		bsdsc.track = 0;
929 		bsdsc.data_len = sizeof(struct cd_sub_channel_info);
930 		bsdsc.data = bsdinfo;
931 		error = fo_ioctl(fp, CDIOCREADSUBCHANNEL, (caddr_t)&bsdsc, p);
932 		if (error)
933 			return (error);
934 		error = copyin((caddr_t)args->arg, &sc,
935 		    sizeof(struct linux_cdrom_subchnl));
936 		if (error)
937 			return (error);
938 		sc.cdsc_audiostatus = bsdinfo->header.audio_status;
939 		sc.cdsc_adr = bsdinfo->what.position.addr_type;
940 		sc.cdsc_ctrl = bsdinfo->what.position.control;
941 		sc.cdsc_trk = bsdinfo->what.position.track_number;
942 		sc.cdsc_ind = bsdinfo->what.position.index_number;
943 		set_linux_cdrom_addr(&sc.cdsc_absaddr, sc.cdsc_format,
944 		    bsdinfo->what.position.absaddr.lba);
945 		set_linux_cdrom_addr(&sc.cdsc_reladdr, sc.cdsc_format,
946 		    bsdinfo->what.position.reladdr.lba);
947 		error = copyout(&sc, (caddr_t)args->arg,
948 		    sizeof(struct linux_cdrom_subchnl));
949 		return (error);
950 	}
951 
952 	/* LINUX_CDROMREADMODE2 */
953 	/* LINUX_CDROMREADMODE1 */
954 	/* LINUX_CDROMREADAUDIO */
955 	/* LINUX_CDROMEJECT_SW */
956 	/* LINUX_CDROMMULTISESSION */
957 	/* LINUX_CDROM_GET_UPC */
958 
959 	case LINUX_CDROMRESET:
960 		args->cmd = CDIOCRESET;
961 		return (ioctl(p, (struct ioctl_args *)args));
962 
963 	/* LINUX_CDROMVOLREAD */
964 	/* LINUX_CDROMREADRAW */
965 	/* LINUX_CDROMREADCOOKED */
966 	/* LINUX_CDROMSEEK */
967 	/* LINUX_CDROMPLAYBLK */
968 	/* LINUX_CDROMREADALL */
969 	/* LINUX_CDROMCLOSETRAY */
970 	/* LINUX_CDROMLOADFROMSLOT */
971 
972 	}
973 
974 	return (ENOIOCTL);
975 }
976 
977 /*
978  * Sound related ioctls
979  */
980 
981 static u_int32_t dirbits[4] = { IOC_VOID, IOC_IN, IOC_OUT, IOC_INOUT };
982 
983 #define	SETDIR(c)	(((c) & ~IOC_DIRMASK) | dirbits[args->cmd >> 30])
984 
985 static int
986 linux_ioctl_sound(struct proc *p, struct linux_ioctl_args *args)
987 {
988 
989 	switch (args->cmd & 0xffff) {
990 
991 	case LINUX_SOUND_MIXER_WRITE_VOLUME:
992 		args->cmd = SETDIR(SOUND_MIXER_WRITE_VOLUME);
993 		return (ioctl(p, (struct ioctl_args *)args));
994 
995 	case LINUX_SOUND_MIXER_WRITE_BASS:
996 		args->cmd = SETDIR(SOUND_MIXER_WRITE_BASS);
997 		return (ioctl(p, (struct ioctl_args *)args));
998 
999 	case LINUX_SOUND_MIXER_WRITE_TREBLE:
1000 		args->cmd = SETDIR(SOUND_MIXER_WRITE_TREBLE);
1001 		return (ioctl(p, (struct ioctl_args *)args));
1002 
1003 	case LINUX_SOUND_MIXER_WRITE_SYNTH:
1004 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SYNTH);
1005 		return (ioctl(p, (struct ioctl_args *)args));
1006 
1007 	case LINUX_SOUND_MIXER_WRITE_PCM:
1008 		args->cmd = SETDIR(SOUND_MIXER_WRITE_PCM);
1009 		return (ioctl(p, (struct ioctl_args *)args));
1010 
1011 	case LINUX_SOUND_MIXER_WRITE_SPEAKER:
1012 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SPEAKER);
1013 		return (ioctl(p, (struct ioctl_args *)args));
1014 
1015 	case LINUX_SOUND_MIXER_WRITE_LINE:
1016 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE);
1017 		return (ioctl(p, (struct ioctl_args *)args));
1018 
1019 	case LINUX_SOUND_MIXER_WRITE_MIC:
1020 		args->cmd = SETDIR(SOUND_MIXER_WRITE_MIC);
1021 		return (ioctl(p, (struct ioctl_args *)args));
1022 
1023 	case LINUX_SOUND_MIXER_WRITE_CD:
1024 		args->cmd = SETDIR(SOUND_MIXER_WRITE_CD);
1025 		return (ioctl(p, (struct ioctl_args *)args));
1026 
1027 	case LINUX_SOUND_MIXER_WRITE_IMIX:
1028 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IMIX);
1029 		return (ioctl(p, (struct ioctl_args *)args));
1030 
1031 	case LINUX_SOUND_MIXER_WRITE_ALTPCM:
1032 		args->cmd = SETDIR(SOUND_MIXER_WRITE_ALTPCM);
1033 		return (ioctl(p, (struct ioctl_args *)args));
1034 
1035 	case LINUX_SOUND_MIXER_WRITE_RECLEV:
1036 		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECLEV);
1037 		return (ioctl(p, (struct ioctl_args *)args));
1038 
1039 	case LINUX_SOUND_MIXER_WRITE_IGAIN:
1040 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IGAIN);
1041 		return (ioctl(p, (struct ioctl_args *)args));
1042 
1043 	case LINUX_SOUND_MIXER_WRITE_OGAIN:
1044 		args->cmd = SETDIR(SOUND_MIXER_WRITE_OGAIN);
1045 		return (ioctl(p, (struct ioctl_args *)args));
1046 
1047 	case LINUX_SOUND_MIXER_WRITE_LINE1:
1048 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE1);
1049 		return (ioctl(p, (struct ioctl_args *)args));
1050 
1051 	case LINUX_SOUND_MIXER_WRITE_LINE2:
1052 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE2);
1053 		return (ioctl(p, (struct ioctl_args *)args));
1054 
1055 	case LINUX_SOUND_MIXER_WRITE_LINE3:
1056 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE3);
1057 		return (ioctl(p, (struct ioctl_args *)args));
1058 
1059 	case LINUX_OSS_GETVERSION: {
1060 		int version = linux_get_oss_version(p);
1061 		return (copyout(&version, (caddr_t)args->arg, sizeof(int)));
1062 	}
1063 
1064 	case LINUX_SOUND_MIXER_READ_DEVMASK:
1065 		args->cmd = SOUND_MIXER_READ_DEVMASK;
1066 		return (ioctl(p, (struct ioctl_args *)args));
1067 
1068 	case LINUX_SNDCTL_DSP_RESET:
1069 		args->cmd = SNDCTL_DSP_RESET;
1070 		return (ioctl(p, (struct ioctl_args *)args));
1071 
1072 	case LINUX_SNDCTL_DSP_SYNC:
1073 		args->cmd = SNDCTL_DSP_SYNC;
1074 		return (ioctl(p, (struct ioctl_args *)args));
1075 
1076 	case LINUX_SNDCTL_DSP_SPEED:
1077 		args->cmd = SNDCTL_DSP_SPEED;
1078 		return (ioctl(p, (struct ioctl_args *)args));
1079 
1080 	case LINUX_SNDCTL_DSP_STEREO:
1081 		args->cmd = SNDCTL_DSP_STEREO;
1082 		return (ioctl(p, (struct ioctl_args *)args));
1083 
1084 	case LINUX_SNDCTL_DSP_GETBLKSIZE: /* LINUX_SNDCTL_DSP_SETBLKSIZE */
1085 		args->cmd = SNDCTL_DSP_GETBLKSIZE;
1086 		return (ioctl(p, (struct ioctl_args *)args));
1087 
1088 	case LINUX_SNDCTL_DSP_SETFMT:
1089 		args->cmd = SNDCTL_DSP_SETFMT;
1090 		return (ioctl(p, (struct ioctl_args *)args));
1091 
1092 	case LINUX_SOUND_PCM_WRITE_CHANNELS:
1093 		args->cmd = SOUND_PCM_WRITE_CHANNELS;
1094 		return (ioctl(p, (struct ioctl_args *)args));
1095 
1096 	case LINUX_SOUND_PCM_WRITE_FILTER:
1097 		args->cmd = SOUND_PCM_WRITE_FILTER;
1098 		return (ioctl(p, (struct ioctl_args *)args));
1099 
1100 	case LINUX_SNDCTL_DSP_POST:
1101 		args->cmd = SNDCTL_DSP_POST;
1102 		return (ioctl(p, (struct ioctl_args *)args));
1103 
1104 	case LINUX_SNDCTL_DSP_SUBDIVIDE:
1105 		args->cmd = SNDCTL_DSP_SUBDIVIDE;
1106 		return (ioctl(p, (struct ioctl_args *)args));
1107 
1108 	case LINUX_SNDCTL_DSP_SETFRAGMENT:
1109 		args->cmd = SNDCTL_DSP_SETFRAGMENT;
1110 		return (ioctl(p, (struct ioctl_args *)args));
1111 
1112 	case LINUX_SNDCTL_DSP_GETFMTS:
1113 		args->cmd = SNDCTL_DSP_GETFMTS;
1114 		return (ioctl(p, (struct ioctl_args *)args));
1115 
1116 	case LINUX_SNDCTL_DSP_GETOSPACE:
1117 		args->cmd = SNDCTL_DSP_GETOSPACE;
1118 		return (ioctl(p, (struct ioctl_args *)args));
1119 
1120 	case LINUX_SNDCTL_DSP_GETISPACE:
1121 		args->cmd = SNDCTL_DSP_GETISPACE;
1122 		return (ioctl(p, (struct ioctl_args *)args));
1123 
1124 	case LINUX_SNDCTL_DSP_NONBLOCK:
1125 		args->cmd = SNDCTL_DSP_NONBLOCK;
1126 		return (ioctl(p, (struct ioctl_args *)args));
1127 
1128 	case LINUX_SNDCTL_DSP_GETCAPS:
1129 		args->cmd = SNDCTL_DSP_GETCAPS;
1130 		return (ioctl(p, (struct ioctl_args *)args));
1131 
1132 	case LINUX_SNDCTL_DSP_SETTRIGGER: /* LINUX_SNDCTL_GETTRIGGER */
1133 		args->cmd = SNDCTL_DSP_SETTRIGGER;
1134 		return (ioctl(p, (struct ioctl_args *)args));
1135 
1136 	case LINUX_SNDCTL_DSP_GETIPTR:
1137 		args->cmd = SNDCTL_DSP_GETIPTR;
1138 		return (ioctl(p, (struct ioctl_args *)args));
1139 
1140 	case LINUX_SNDCTL_DSP_GETOPTR:
1141 		args->cmd = SNDCTL_DSP_GETOPTR;
1142 		return (ioctl(p, (struct ioctl_args *)args));
1143 
1144 	case LINUX_SNDCTL_DSP_GETODELAY:
1145 		args->cmd = SNDCTL_DSP_GETODELAY;
1146 		return (ioctl(p, (struct ioctl_args *)args));
1147 
1148 	case LINUX_SNDCTL_SEQ_RESET:
1149 		args->cmd = SNDCTL_SEQ_RESET;
1150 		return (ioctl(p, (struct ioctl_args *)args));
1151 
1152 	case LINUX_SNDCTL_SEQ_SYNC:
1153 		args->cmd = SNDCTL_SEQ_SYNC;
1154 		return (ioctl(p, (struct ioctl_args *)args));
1155 
1156 	case LINUX_SNDCTL_SYNTH_INFO:
1157 		args->cmd = SNDCTL_SYNTH_INFO;
1158 		return (ioctl(p, (struct ioctl_args *)args));
1159 
1160 	case LINUX_SNDCTL_SEQ_CTRLRATE:
1161 		args->cmd = SNDCTL_SEQ_CTRLRATE;
1162 		return (ioctl(p, (struct ioctl_args *)args));
1163 
1164 	case LINUX_SNDCTL_SEQ_GETOUTCOUNT:
1165 		args->cmd = SNDCTL_SEQ_GETOUTCOUNT;
1166 		return (ioctl(p, (struct ioctl_args *)args));
1167 
1168 	case LINUX_SNDCTL_SEQ_GETINCOUNT:
1169 		args->cmd = SNDCTL_SEQ_GETINCOUNT;
1170 		return (ioctl(p, (struct ioctl_args *)args));
1171 
1172 	case LINUX_SNDCTL_SEQ_PERCMODE:
1173 		args->cmd = SNDCTL_SEQ_PERCMODE;
1174 		return (ioctl(p, (struct ioctl_args *)args));
1175 
1176 	case LINUX_SNDCTL_FM_LOAD_INSTR:
1177 		args->cmd = SNDCTL_FM_LOAD_INSTR;
1178 		return (ioctl(p, (struct ioctl_args *)args));
1179 
1180 	case LINUX_SNDCTL_SEQ_TESTMIDI:
1181 		args->cmd = SNDCTL_SEQ_TESTMIDI;
1182 		return (ioctl(p, (struct ioctl_args *)args));
1183 
1184 	case LINUX_SNDCTL_SEQ_RESETSAMPLES:
1185 		args->cmd = SNDCTL_SEQ_RESETSAMPLES;
1186 		return (ioctl(p, (struct ioctl_args *)args));
1187 
1188 	case LINUX_SNDCTL_SEQ_NRSYNTHS:
1189 		args->cmd = SNDCTL_SEQ_NRSYNTHS;
1190 		return (ioctl(p, (struct ioctl_args *)args));
1191 
1192 	case LINUX_SNDCTL_SEQ_NRMIDIS:
1193 		args->cmd = SNDCTL_SEQ_NRMIDIS;
1194 		return (ioctl(p, (struct ioctl_args *)args));
1195 
1196 	case LINUX_SNDCTL_MIDI_INFO:
1197 		args->cmd = SNDCTL_MIDI_INFO;
1198 		return (ioctl(p, (struct ioctl_args *)args));
1199 
1200 	case LINUX_SNDCTL_SEQ_TRESHOLD:
1201 		args->cmd = SNDCTL_SEQ_TRESHOLD;
1202 		return (ioctl(p, (struct ioctl_args *)args));
1203 
1204 	case LINUX_SNDCTL_SYNTH_MEMAVL:
1205 		args->cmd = SNDCTL_SYNTH_MEMAVL;
1206 		return (ioctl(p, (struct ioctl_args *)args));
1207 
1208 	}
1209 
1210 	return (ENOIOCTL);
1211 }
1212 
1213 /*
1214  * Console related ioctls
1215  */
1216 
1217 #define ISSIGVALID(sig)		((sig) > 0 && (sig) < NSIG)
1218 
1219 static int
1220 linux_ioctl_console(struct proc *p, struct linux_ioctl_args *args)
1221 {
1222 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
1223 
1224 	switch (args->cmd & 0xffff) {
1225 
1226 	case LINUX_KIOCSOUND:
1227 		args->cmd = KIOCSOUND;
1228 		return (ioctl(p, (struct ioctl_args *)args));
1229 
1230 	case LINUX_KDMKTONE:
1231 		args->cmd = KDMKTONE;
1232 		return (ioctl(p, (struct ioctl_args *)args));
1233 
1234 	case LINUX_KDGETLED:
1235 		args->cmd = KDGETLED;
1236 		return (ioctl(p, (struct ioctl_args *)args));
1237 
1238 	case LINUX_KDSETLED:
1239 		args->cmd = KDSETLED;
1240 		return (ioctl(p, (struct ioctl_args *)args));
1241 
1242 	case LINUX_KDSETMODE:
1243 		args->cmd = KDSETMODE;
1244 		return (ioctl(p, (struct ioctl_args *)args));
1245 
1246 	case LINUX_KDGETMODE:
1247 		args->cmd = KDGETMODE;
1248 		return (ioctl(p, (struct ioctl_args *)args));
1249 
1250 	case LINUX_KDGKBMODE:
1251 		args->cmd = KDGKBMODE;
1252 		return (ioctl(p, (struct ioctl_args *)args));
1253 
1254 	case LINUX_KDSKBMODE: {
1255 		int kbdmode;
1256 		switch (args->arg) {
1257 		case LINUX_KBD_RAW:
1258 			kbdmode = K_RAW;
1259 			break;
1260 		case LINUX_KBD_XLATE:
1261 			kbdmode = K_XLATE;
1262 			break;
1263 		case LINUX_KBD_MEDIUMRAW:
1264 			kbdmode = K_RAW;
1265 			break;
1266 		default:
1267 			return (EINVAL);
1268 		}
1269 		return (fo_ioctl(fp, KDSKBMODE, (caddr_t)&kbdmode, p));
1270 	}
1271 
1272 	case LINUX_VT_OPENQRY:
1273 		args->cmd = VT_OPENQRY;
1274 		return (ioctl(p, (struct ioctl_args *)args));
1275 
1276 	case LINUX_VT_GETMODE:
1277 		args->cmd = VT_GETMODE;
1278 		return  (ioctl(p, (struct ioctl_args *)args));
1279 
1280 	case LINUX_VT_SETMODE: {
1281 		struct vt_mode *mode;
1282 		args->cmd = VT_SETMODE;
1283 		mode = (struct vt_mode *)args->arg;
1284 		if (!ISSIGVALID(mode->frsig) && ISSIGVALID(mode->acqsig))
1285 			mode->frsig = mode->acqsig;
1286 		return (ioctl(p, (struct ioctl_args *)args));
1287 	}
1288 
1289 	case LINUX_VT_GETSTATE:
1290 		args->cmd = VT_GETACTIVE;
1291 		return (ioctl(p, (struct ioctl_args *)args));
1292 
1293 	case LINUX_VT_RELDISP:
1294 		args->cmd = VT_RELDISP;
1295 		return (ioctl(p, (struct ioctl_args *)args));
1296 
1297 	case LINUX_VT_ACTIVATE:
1298 		args->cmd = VT_ACTIVATE;
1299 		return (ioctl(p, (struct ioctl_args *)args));
1300 
1301 	case LINUX_VT_WAITACTIVE:
1302 		args->cmd = VT_WAITACTIVE;
1303 		return (ioctl(p, (struct ioctl_args *)args));
1304 
1305 	}
1306 
1307 	return (ENOIOCTL);
1308 }
1309 
1310 /*
1311  * Socket related ioctls
1312  */
1313 
1314 static int
1315 linux_ioctl_socket(struct proc *p, struct linux_ioctl_args *args)
1316 {
1317 
1318 	switch (args->cmd & 0xffff) {
1319 
1320 	case LINUX_FIOSETOWN:
1321 		args->cmd = FIOSETOWN;
1322 		return (ioctl(p, (struct ioctl_args *)args));
1323 
1324 	case LINUX_SIOCSPGRP:
1325 		args->cmd = SIOCSPGRP;
1326 		return (ioctl(p, (struct ioctl_args *)args));
1327 
1328 	case LINUX_FIOGETOWN:
1329 		args->cmd = FIOGETOWN;
1330 		return (ioctl(p, (struct ioctl_args *)args));
1331 
1332 	case LINUX_SIOCGPGRP:
1333 		args->cmd = SIOCGPGRP;
1334 		return (ioctl(p, (struct ioctl_args *)args));
1335 
1336 	case LINUX_SIOCATMARK:
1337 		args->cmd = SIOCATMARK;
1338 		return (ioctl(p, (struct ioctl_args *)args));
1339 
1340 	/* LINUX_SIOCGSTAMP */
1341 
1342 	case LINUX_SIOCGIFCONF:
1343 		args->cmd = OSIOCGIFCONF;
1344 		return (ioctl(p, (struct ioctl_args *)args));
1345 
1346 	case LINUX_SIOCGIFFLAGS:
1347 		args->cmd = SIOCGIFFLAGS;
1348 		return (ioctl(p, (struct ioctl_args *)args));
1349 
1350 	case LINUX_SIOCGIFADDR:
1351 		args->cmd = OSIOCGIFADDR;
1352 		return (ioctl(p, (struct ioctl_args *)args));
1353 
1354 	case LINUX_SIOCGIFDSTADDR:
1355 		args->cmd = OSIOCGIFDSTADDR;
1356 		return (ioctl(p, (struct ioctl_args *)args));
1357 
1358 	case LINUX_SIOCGIFBRDADDR:
1359 		args->cmd = OSIOCGIFBRDADDR;
1360 		return (ioctl(p, (struct ioctl_args *)args));
1361 
1362 	case LINUX_SIOCGIFNETMASK:
1363 		args->cmd = OSIOCGIFNETMASK;
1364 		return (ioctl(p, (struct ioctl_args *)args));
1365 
1366 	case LINUX_SIOCGIFHWADDR: {
1367 		int ifn;
1368 		struct ifnet *ifp;
1369 		struct ifaddr *ifa;
1370 		struct sockaddr_dl *sdl;
1371 		struct linux_ifreq *ifr = (struct linux_ifreq *)args->arg;
1372 
1373 		/* Note that we don't actually respect the name in the ifreq
1374 		 * structure, as Linux interface names are all different.
1375 		 */
1376 		for (ifn = 0; ifn < if_index; ifn++) {
1377 			ifp = ifnet_addrs[ifn]->ifa_ifp;
1378 			if (ifp->if_type == IFT_ETHER) {
1379 				ifa = TAILQ_FIRST(&ifp->if_addrhead);
1380 				while (ifa) {
1381 					sdl=(struct sockaddr_dl*)ifa->ifa_addr;
1382 					if (sdl != NULL &&
1383 					    (sdl->sdl_family == AF_LINK) &&
1384 					    (sdl->sdl_type == IFT_ETHER)) {
1385 						return (copyout(LLADDR(sdl),
1386 						    &ifr->ifr_hwaddr.sa_data,
1387 						    LINUX_IFHWADDRLEN));
1388 					}
1389 					ifa = TAILQ_NEXT(ifa, ifa_link);
1390 				}
1391 			}
1392 		}
1393 		return (ENOENT);
1394 	}
1395 
1396 	case LINUX_SIOCADDMULTI:
1397 		args->cmd = SIOCADDMULTI;
1398 		return (ioctl(p, (struct ioctl_args *)args));
1399 
1400 	case LINUX_SIOCDELMULTI:
1401 		args->cmd = SIOCDELMULTI;
1402 		return (ioctl(p, (struct ioctl_args *)args));
1403 
1404 	}
1405 
1406 	return (ENOIOCTL);
1407 }
1408 
1409 /*
1410  * main ioctl syscall function
1411  */
1412 
1413 int
1414 linux_ioctl(struct proc *p, struct linux_ioctl_args *args)
1415 {
1416 	struct filedesc *fdp = p->p_fd;
1417 	struct file *fp;
1418 	struct handler_element *he;
1419 	int error, cmd;
1420 
1421 #ifdef DEBUG
1422 	printf("Linux-emul(%ld): ioctl(%d, %04lx, *)\n", (long)p->p_pid,
1423 	    args->fd, args->cmd);
1424 #endif
1425 
1426 	if ((unsigned)args->fd >= fdp->fd_nfiles)
1427 		return (EBADF);
1428 
1429 	fp = fdp->fd_ofiles[args->fd];
1430 	if (fp == NULL || (fp->f_flag & (FREAD|FWRITE)) == 0)
1431 		return (EBADF);
1432 
1433 	/* Iterate over the ioctl handlers */
1434 	cmd = args->cmd & 0xffff;
1435 	TAILQ_FOREACH(he, &handlers, list) {
1436 		if (cmd >= he->low && cmd <= he->high) {
1437 			error = (*he->func)(p, args);
1438 			if (error != ENOIOCTL)
1439 				return (error);
1440 		}
1441 	}
1442 
1443 	printf("linux: 'ioctl' fd=%d, cmd=%x ('%c',%d) not implemented\n",
1444 	    args->fd, (int)(args->cmd & 0xffff),
1445 	    (int)(args->cmd & 0xff00) >> 8, (int)(args->cmd & 0xff));
1446 
1447 	return (EINVAL);
1448 }
1449 
1450 int
1451 linux_ioctl_register_handler(struct linux_ioctl_handler *h)
1452 {
1453 	struct handler_element *he, *cur;
1454 
1455 	if (h == NULL || h->func == NULL)
1456 		return (EINVAL);
1457 
1458 	/*
1459 	 * Reuse the element if the handler is already on the list, otherwise
1460 	 * create a new element.
1461 	 */
1462 	TAILQ_FOREACH(he, &handlers, list) {
1463 		if (he->func == h->func)
1464 			break;
1465 	}
1466 	if (he == NULL) {
1467 		MALLOC(he, struct handler_element *, sizeof(*he),
1468 		    M_LINUX, M_WAITOK);
1469 		he->func = h->func;
1470 	} else
1471 		TAILQ_REMOVE(&handlers, he, list);
1472 
1473 	/* Initialize range information. */
1474 	he->low = h->low;
1475 	he->high = h->high;
1476 	he->span = h->high - h->low + 1;
1477 
1478 	/* Add the element to the list, sorted on span. */
1479 	TAILQ_FOREACH(cur, &handlers, list) {
1480 		if (cur->span > he->span) {
1481 			TAILQ_INSERT_BEFORE(cur, he, list);
1482 			return (0);
1483 		}
1484 	}
1485 	TAILQ_INSERT_TAIL(&handlers, he, list);
1486 
1487 	return (0);
1488 }
1489 
1490 int
1491 linux_ioctl_unregister_handler(struct linux_ioctl_handler *h)
1492 {
1493 	struct handler_element *he;
1494 
1495 	if (h == NULL || h->func == NULL)
1496 		return (EINVAL);
1497 
1498 	TAILQ_FOREACH(he, &handlers, list) {
1499 		if (he->func == h->func) {
1500 			TAILQ_REMOVE(&handlers, he, list);
1501 			FREE(he, M_LINUX);
1502 			return (0);
1503 		}
1504 	}
1505 
1506 	return (EINVAL);
1507 }
1508 
1509 int
1510 linux_ioctl_register_handlers(struct linker_set *s)
1511 {
1512 	int error, i;
1513 
1514 	if (s == NULL)
1515 		return (EINVAL);
1516 
1517 	for (i = 0; i < s->ls_length; i++) {
1518 		error = linux_ioctl_register_handler(s->ls_items[i]);
1519 		if (error)
1520 			return (error);
1521 	}
1522 
1523 	return (0);
1524 }
1525 
1526 int
1527 linux_ioctl_unregister_handlers(struct linker_set *s)
1528 {
1529 	int error, i;
1530 
1531 	if (s == NULL)
1532 		return (EINVAL);
1533 
1534 	for (i = 0; i < s->ls_length; i++) {
1535 		error = linux_ioctl_unregister_handler(s->ls_items[i]);
1536 		if (error)
1537 			return (error);
1538 	}
1539 
1540 	return (0);
1541 }
1542