xref: /freebsd/sys/compat/linux/linux_ioctl.c (revision 1a9527eaaad28d19a91707c53bb0b38003b42e59)
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/fcntl.h>
37 #include <sys/file.h>
38 #include <sys/filedesc.h>
39 #include <sys/filio.h>
40 #include <sys/linker_set.h>
41 #include <sys/malloc.h>
42 #include <sys/tty.h>
43 #include <sys/socket.h>
44 #include <net/if.h>
45 #include <net/if_dl.h>
46 #include <net/if_types.h>
47 #include <sys/sockio.h>
48 #include <sys/soundcard.h>
49 
50 #include <machine/console.h>
51 
52 #include <i386/linux/linux.h>
53 #include <i386/linux/linux_ioctl.h>
54 #include <i386/linux/linux_mib.h>
55 #include <i386/linux/linux_proto.h>
56 #include <i386/linux/linux_util.h>
57 
58 static linux_ioctl_function_t linux_ioctl_cdrom;
59 static linux_ioctl_function_t linux_ioctl_console;
60 static linux_ioctl_function_t linux_ioctl_socket;
61 static linux_ioctl_function_t linux_ioctl_sound;
62 static linux_ioctl_function_t linux_ioctl_termio;
63 
64 static struct linux_ioctl_handler cdrom_handler =
65 { linux_ioctl_cdrom, LINUX_IOCTL_CDROM_MIN, LINUX_IOCTL_CDROM_MAX };
66 static struct linux_ioctl_handler console_handler =
67 { linux_ioctl_console, LINUX_IOCTL_CONSOLE_MIN, LINUX_IOCTL_CONSOLE_MAX };
68 static struct linux_ioctl_handler socket_handler =
69 { linux_ioctl_socket, LINUX_IOCTL_SOCKET_MIN, LINUX_IOCTL_SOCKET_MAX };
70 static struct linux_ioctl_handler sound_handler =
71 { linux_ioctl_sound, LINUX_IOCTL_SOUND_MIN, LINUX_IOCTL_SOUND_MAX };
72 static struct linux_ioctl_handler termio_handler =
73 { linux_ioctl_termio, LINUX_IOCTL_TERMIO_MIN, LINUX_IOCTL_TERMIO_MAX };
74 
75 DATA_SET(linux_ioctl_handler_set, cdrom_handler);
76 DATA_SET(linux_ioctl_handler_set, console_handler);
77 DATA_SET(linux_ioctl_handler_set, socket_handler);
78 DATA_SET(linux_ioctl_handler_set, sound_handler);
79 DATA_SET(linux_ioctl_handler_set, termio_handler);
80 
81 struct handler_element
82 {
83 	TAILQ_ENTRY(handler_element) list;
84 	int	(*func)(struct proc *, struct linux_ioctl_args *);
85 	int	low, high, span;
86 };
87 
88 static TAILQ_HEAD(, handler_element) handlers =
89 	TAILQ_HEAD_INITIALIZER(handlers);
90 
91 /*
92  * termio related ioctls
93  */
94 
95 struct linux_termio {
96 	unsigned short c_iflag;
97 	unsigned short c_oflag;
98 	unsigned short c_cflag;
99 	unsigned short c_lflag;
100 	unsigned char c_line;
101 	unsigned char c_cc[LINUX_NCC];
102 };
103 
104 struct linux_termios {
105 	unsigned int c_iflag;
106 	unsigned int c_oflag;
107 	unsigned int c_cflag;
108 	unsigned int c_lflag;
109 	unsigned char c_line;
110 	unsigned char c_cc[LINUX_NCCS];
111 };
112 
113 struct linux_winsize {
114 	unsigned short ws_row, ws_col;
115 	unsigned short ws_xpixel, ws_ypixel;
116 };
117 
118 static struct speedtab sptab[] = {
119 	{ B0, LINUX_B0 }, { B50, LINUX_B50 },
120 	{ B75, LINUX_B75 }, { B110, LINUX_B110 },
121 	{ B134, LINUX_B134 }, { B150, LINUX_B150 },
122 	{ B200, LINUX_B200 }, { B300, LINUX_B300 },
123 	{ B600, LINUX_B600 }, { B1200, LINUX_B1200 },
124 	{ B1800, LINUX_B1800 }, { B2400, LINUX_B2400 },
125 	{ B4800, LINUX_B4800 }, { B9600, LINUX_B9600 },
126 	{ B19200, LINUX_B19200 }, { B38400, LINUX_B38400 },
127 	{ B57600, LINUX_B57600 }, { B115200, LINUX_B115200 },
128 	{-1, -1 }
129 };
130 
131 struct linux_serial_struct {
132 	int	type;
133 	int	line;
134 	int	port;
135 	int	irq;
136 	int	flags;
137 	int	xmit_fifo_size;
138 	int	custom_divisor;
139 	int	baud_base;
140 	unsigned short close_delay;
141 	char	reserved_char[2];
142 	int	hub6;
143 	unsigned short closing_wait;
144 	unsigned short closing_wait2;
145 	int	reserved[4];
146 };
147 
148 static int
149 linux_to_bsd_speed(int code, struct speedtab *table)
150 {
151 	for ( ; table->sp_code != -1; table++)
152 		if (table->sp_code == code)
153 			return (table->sp_speed);
154 	return -1;
155 }
156 
157 static int
158 bsd_to_linux_speed(int speed, struct speedtab *table)
159 {
160 	for ( ; table->sp_speed != -1; table++)
161 		if (table->sp_speed == speed)
162 			return (table->sp_code);
163 	return -1;
164 }
165 
166 static void
167 bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
168 {
169 	int i;
170 
171 #ifdef DEBUG
172 	printf("LINUX: BSD termios structure (input):\n");
173 	printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
174 	    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
175 	    bios->c_ispeed, bios->c_ospeed);
176 	printf("c_cc ");
177 	for (i=0; i<NCCS; i++)
178 		printf("%02x ", bios->c_cc[i]);
179 	printf("\n");
180 #endif
181 
182 	lios->c_iflag = 0;
183 	if (bios->c_iflag & IGNBRK)
184 		lios->c_iflag |= LINUX_IGNBRK;
185 	if (bios->c_iflag & BRKINT)
186 		lios->c_iflag |= LINUX_BRKINT;
187 	if (bios->c_iflag & IGNPAR)
188 		lios->c_iflag |= LINUX_IGNPAR;
189 	if (bios->c_iflag & PARMRK)
190 		lios->c_iflag |= LINUX_PARMRK;
191 	if (bios->c_iflag & INPCK)
192 		lios->c_iflag |= LINUX_INPCK;
193 	if (bios->c_iflag & ISTRIP)
194 		lios->c_iflag |= LINUX_ISTRIP;
195 	if (bios->c_iflag & INLCR)
196 		lios->c_iflag |= LINUX_INLCR;
197 	if (bios->c_iflag & IGNCR)
198 		lios->c_iflag |= LINUX_IGNCR;
199 	if (bios->c_iflag & ICRNL)
200 		lios->c_iflag |= LINUX_ICRNL;
201 	if (bios->c_iflag & IXON)
202 		lios->c_iflag |= LINUX_IXON;
203 	if (bios->c_iflag & IXANY)
204 		lios->c_iflag |= LINUX_IXANY;
205 	if (bios->c_iflag & IXOFF)
206 		lios->c_iflag |= LINUX_IXOFF;
207 	if (bios->c_iflag & IMAXBEL)
208 		lios->c_iflag |= LINUX_IMAXBEL;
209 
210 	lios->c_oflag = 0;
211 	if (bios->c_oflag & OPOST)
212 		lios->c_oflag |= LINUX_OPOST;
213 	if (bios->c_oflag & ONLCR)
214 		lios->c_oflag |= LINUX_ONLCR;
215 	if (bios->c_oflag & OXTABS)
216 		lios->c_oflag |= LINUX_XTABS;
217 
218 	lios->c_cflag = bsd_to_linux_speed(bios->c_ispeed, sptab);
219 	lios->c_cflag |= (bios->c_cflag & CSIZE) >> 4;
220 	if (bios->c_cflag & CSTOPB)
221 		lios->c_cflag |= LINUX_CSTOPB;
222 	if (bios->c_cflag & CREAD)
223 		lios->c_cflag |= LINUX_CREAD;
224 	if (bios->c_cflag & PARENB)
225 		lios->c_cflag |= LINUX_PARENB;
226 	if (bios->c_cflag & PARODD)
227 		lios->c_cflag |= LINUX_PARODD;
228 	if (bios->c_cflag & HUPCL)
229 		lios->c_cflag |= LINUX_HUPCL;
230 	if (bios->c_cflag & CLOCAL)
231 		lios->c_cflag |= LINUX_CLOCAL;
232 	if (bios->c_cflag & CRTSCTS)
233 		lios->c_cflag |= LINUX_CRTSCTS;
234 
235 	lios->c_lflag = 0;
236 	if (bios->c_lflag & ISIG)
237 		lios->c_lflag |= LINUX_ISIG;
238 	if (bios->c_lflag & ICANON)
239 		lios->c_lflag |= LINUX_ICANON;
240 	if (bios->c_lflag & ECHO)
241 		lios->c_lflag |= LINUX_ECHO;
242 	if (bios->c_lflag & ECHOE)
243 		lios->c_lflag |= LINUX_ECHOE;
244 	if (bios->c_lflag & ECHOK)
245 		lios->c_lflag |= LINUX_ECHOK;
246 	if (bios->c_lflag & ECHONL)
247 		lios->c_lflag |= LINUX_ECHONL;
248 	if (bios->c_lflag & NOFLSH)
249 		lios->c_lflag |= LINUX_NOFLSH;
250 	if (bios->c_lflag & TOSTOP)
251 		lios->c_lflag |= LINUX_TOSTOP;
252 	if (bios->c_lflag & ECHOCTL)
253 		lios->c_lflag |= LINUX_ECHOCTL;
254 	if (bios->c_lflag & ECHOPRT)
255 		lios->c_lflag |= LINUX_ECHOPRT;
256 	if (bios->c_lflag & ECHOKE)
257 		lios->c_lflag |= LINUX_ECHOKE;
258 	if (bios->c_lflag & FLUSHO)
259 		lios->c_lflag |= LINUX_FLUSHO;
260 	if (bios->c_lflag & PENDIN)
261 		lios->c_lflag |= LINUX_PENDIN;
262 	if (bios->c_lflag & IEXTEN)
263 		lios->c_lflag |= LINUX_IEXTEN;
264 
265 	for (i=0; i<LINUX_NCCS; i++)
266 		lios->c_cc[i] = LINUX_POSIX_VDISABLE;
267 	lios->c_cc[LINUX_VINTR] = bios->c_cc[VINTR];
268 	lios->c_cc[LINUX_VQUIT] = bios->c_cc[VQUIT];
269 	lios->c_cc[LINUX_VERASE] = bios->c_cc[VERASE];
270 	lios->c_cc[LINUX_VKILL] = bios->c_cc[VKILL];
271 	lios->c_cc[LINUX_VEOF] = bios->c_cc[VEOF];
272 	lios->c_cc[LINUX_VEOL] = bios->c_cc[VEOL];
273 	lios->c_cc[LINUX_VMIN] = bios->c_cc[VMIN];
274 	lios->c_cc[LINUX_VTIME] = bios->c_cc[VTIME];
275 	lios->c_cc[LINUX_VEOL2] = bios->c_cc[VEOL2];
276 	lios->c_cc[LINUX_VSUSP] = bios->c_cc[VSUSP];
277 	lios->c_cc[LINUX_VSTART] = bios->c_cc[VSTART];
278 	lios->c_cc[LINUX_VSTOP] = bios->c_cc[VSTOP];
279 	lios->c_cc[LINUX_VREPRINT] = bios->c_cc[VREPRINT];
280 	lios->c_cc[LINUX_VDISCARD] = bios->c_cc[VDISCARD];
281 	lios->c_cc[LINUX_VWERASE] = bios->c_cc[VWERASE];
282 	lios->c_cc[LINUX_VLNEXT] = bios->c_cc[VLNEXT];
283 
284 	for (i=0; i<LINUX_NCCS; i++) {
285 		if (lios->c_cc[i] == _POSIX_VDISABLE)
286 			lios->c_cc[i] = LINUX_POSIX_VDISABLE;
287 	}
288 	lios->c_line = 0;
289 
290 #ifdef DEBUG
291 	printf("LINUX: LINUX termios structure (output):\n");
292 	printf("i=%08x o=%08x c=%08x l=%08x line=%d\n", lios->c_iflag,
293 	    lios->c_oflag, lios->c_cflag, lios->c_lflag, (int)lios->c_line);
294 	printf("c_cc ");
295 	for (i=0; i<LINUX_NCCS; i++)
296 		printf("%02x ", lios->c_cc[i]);
297 	printf("\n");
298 #endif
299 }
300 
301 static void
302 linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
303 {
304 	int i;
305 
306 #ifdef DEBUG
307 	printf("LINUX: LINUX termios structure (input):\n");
308 	printf("i=%08x o=%08x c=%08x l=%08x line=%d\n", lios->c_iflag,
309 	    lios->c_oflag, lios->c_cflag, lios->c_lflag, (int)lios->c_line);
310 	printf("c_cc ");
311 	for (i=0; i<LINUX_NCCS; i++)
312 		printf("%02x ", lios->c_cc[i]);
313 	printf("\n");
314 #endif
315 
316 	bios->c_iflag = 0;
317 	if (lios->c_iflag & LINUX_IGNBRK)
318 		bios->c_iflag |= IGNBRK;
319 	if (lios->c_iflag & LINUX_BRKINT)
320 		bios->c_iflag |= BRKINT;
321 	if (lios->c_iflag & LINUX_IGNPAR)
322 		bios->c_iflag |= IGNPAR;
323 	if (lios->c_iflag & LINUX_PARMRK)
324 		bios->c_iflag |= PARMRK;
325 	if (lios->c_iflag & LINUX_INPCK)
326 		bios->c_iflag |= INPCK;
327 	if (lios->c_iflag & LINUX_ISTRIP)
328 		bios->c_iflag |= ISTRIP;
329 	if (lios->c_iflag & LINUX_INLCR)
330 		bios->c_iflag |= INLCR;
331 	if (lios->c_iflag & LINUX_IGNCR)
332 		bios->c_iflag |= IGNCR;
333 	if (lios->c_iflag & LINUX_ICRNL)
334 		bios->c_iflag |= ICRNL;
335 	if (lios->c_iflag & LINUX_IXON)
336 		bios->c_iflag |= IXON;
337 	if (lios->c_iflag & LINUX_IXANY)
338 		bios->c_iflag |= IXANY;
339 	if (lios->c_iflag & LINUX_IXOFF)
340 		bios->c_iflag |= IXOFF;
341 	if (lios->c_iflag & LINUX_IMAXBEL)
342 		bios->c_iflag |= IMAXBEL;
343 
344 	bios->c_oflag = 0;
345 	if (lios->c_oflag & LINUX_OPOST)
346 		bios->c_oflag |= OPOST;
347 	if (lios->c_oflag & LINUX_ONLCR)
348 		bios->c_oflag |= ONLCR;
349 	if (lios->c_oflag & LINUX_XTABS)
350 		bios->c_oflag |= OXTABS;
351 
352 	bios->c_cflag = (lios->c_cflag & LINUX_CSIZE) << 4;
353 	if (lios->c_cflag & LINUX_CSTOPB)
354 		bios->c_cflag |= CSTOPB;
355 	if (lios->c_cflag & LINUX_CREAD)
356 		bios->c_cflag |= CREAD;
357 	if (lios->c_cflag & LINUX_PARENB)
358 		bios->c_cflag |= PARENB;
359 	if (lios->c_cflag & LINUX_PARODD)
360 		bios->c_cflag |= PARODD;
361 	if (lios->c_cflag & LINUX_HUPCL)
362 		bios->c_cflag |= HUPCL;
363 	if (lios->c_cflag & LINUX_CLOCAL)
364 		bios->c_cflag |= CLOCAL;
365 	if (lios->c_cflag & LINUX_CRTSCTS)
366 		bios->c_cflag |= CRTSCTS;
367 
368 	bios->c_lflag = 0;
369 	if (lios->c_lflag & LINUX_ISIG)
370 		bios->c_lflag |= ISIG;
371 	if (lios->c_lflag & LINUX_ICANON)
372 		bios->c_lflag |= ICANON;
373 	if (lios->c_lflag & LINUX_ECHO)
374 		bios->c_lflag |= ECHO;
375 	if (lios->c_lflag & LINUX_ECHOE)
376 		bios->c_lflag |= ECHOE;
377 	if (lios->c_lflag & LINUX_ECHOK)
378 		bios->c_lflag |= ECHOK;
379 	if (lios->c_lflag & LINUX_ECHONL)
380 		bios->c_lflag |= ECHONL;
381 	if (lios->c_lflag & LINUX_NOFLSH)
382 		bios->c_lflag |= NOFLSH;
383 	if (lios->c_lflag & LINUX_TOSTOP)
384 		bios->c_lflag |= TOSTOP;
385 	if (lios->c_lflag & LINUX_ECHOCTL)
386 		bios->c_lflag |= ECHOCTL;
387 	if (lios->c_lflag & LINUX_ECHOPRT)
388 		bios->c_lflag |= ECHOPRT;
389 	if (lios->c_lflag & LINUX_ECHOKE)
390 		bios->c_lflag |= ECHOKE;
391 	if (lios->c_lflag & LINUX_FLUSHO)
392 		bios->c_lflag |= FLUSHO;
393 	if (lios->c_lflag & LINUX_PENDIN)
394 		bios->c_lflag |= PENDIN;
395 	if (lios->c_lflag & LINUX_IEXTEN)
396 		bios->c_lflag |= IEXTEN;
397 
398 	for (i=0; i<NCCS; i++)
399 		bios->c_cc[i] = _POSIX_VDISABLE;
400 	bios->c_cc[VINTR] = lios->c_cc[LINUX_VINTR];
401 	bios->c_cc[VQUIT] = lios->c_cc[LINUX_VQUIT];
402 	bios->c_cc[VERASE] = lios->c_cc[LINUX_VERASE];
403 	bios->c_cc[VKILL] = lios->c_cc[LINUX_VKILL];
404 	bios->c_cc[VEOF] = lios->c_cc[LINUX_VEOF];
405 	bios->c_cc[VEOL] = lios->c_cc[LINUX_VEOL];
406 	bios->c_cc[VMIN] = lios->c_cc[LINUX_VMIN];
407 	bios->c_cc[VTIME] = lios->c_cc[LINUX_VTIME];
408 	bios->c_cc[VEOL2] = lios->c_cc[LINUX_VEOL2];
409 	bios->c_cc[VSUSP] = lios->c_cc[LINUX_VSUSP];
410 	bios->c_cc[VSTART] = lios->c_cc[LINUX_VSTART];
411 	bios->c_cc[VSTOP] = lios->c_cc[LINUX_VSTOP];
412 	bios->c_cc[VREPRINT] = lios->c_cc[LINUX_VREPRINT];
413 	bios->c_cc[VDISCARD] = lios->c_cc[LINUX_VDISCARD];
414 	bios->c_cc[VWERASE] = lios->c_cc[LINUX_VWERASE];
415 	bios->c_cc[VLNEXT] = lios->c_cc[LINUX_VLNEXT];
416 
417 	for (i=0; i<NCCS; i++) {
418 		if (bios->c_cc[i] == LINUX_POSIX_VDISABLE)
419 			bios->c_cc[i] = _POSIX_VDISABLE;
420 	}
421 
422 	bios->c_ispeed = bios->c_ospeed =
423 	    linux_to_bsd_speed(lios->c_cflag & LINUX_CBAUD, sptab);
424 
425 #ifdef DEBUG
426 	printf("LINUX: BSD termios structure (output):\n");
427 	printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
428 	    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
429 	    bios->c_ispeed, bios->c_ospeed);
430 	printf("c_cc ");
431 	for (i=0; i<NCCS; i++)
432 		printf("%02x ", bios->c_cc[i]);
433 	printf("\n");
434 #endif
435 }
436 
437 static void
438 bsd_to_linux_termio(struct termios *bios, struct linux_termio *lio)
439 {
440 	struct linux_termios lios;
441 
442 	bsd_to_linux_termios(bios, &lios);
443 	lio->c_iflag = lios.c_iflag;
444 	lio->c_oflag = lios.c_oflag;
445 	lio->c_cflag = lios.c_cflag;
446 	lio->c_lflag = lios.c_lflag;
447 	lio->c_line  = lios.c_line;
448 	memcpy(lio->c_cc, lios.c_cc, LINUX_NCC);
449 }
450 
451 static void
452 linux_to_bsd_termio(struct linux_termio *lio, struct termios *bios)
453 {
454 	struct linux_termios lios;
455 	int i;
456 
457 	lios.c_iflag = lio->c_iflag;
458 	lios.c_oflag = lio->c_oflag;
459 	lios.c_cflag = lio->c_cflag;
460 	lios.c_lflag = lio->c_lflag;
461 	for (i=LINUX_NCC; i<LINUX_NCCS; i++)
462 		lios.c_cc[i] = LINUX_POSIX_VDISABLE;
463 	memcpy(lios.c_cc, lio->c_cc, LINUX_NCC);
464 	linux_to_bsd_termios(&lios, bios);
465 }
466 
467 static int
468 linux_ioctl_termio(struct proc *p, struct linux_ioctl_args *args)
469 {
470 	struct termios bios;
471 	struct linux_termios lios;
472 	struct linux_termio lio;
473 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
474 	int error;
475 
476 	switch (args->cmd & 0xffff) {
477 
478 	case LINUX_TCGETS:
479 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
480 		if (error)
481 			return (error);
482 		bsd_to_linux_termios(&bios, &lios);
483 		return copyout(&lios, (caddr_t)args->arg, sizeof(lios));
484 
485 	case LINUX_TCSETS:
486 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
487 		if (error)
488 			return (error);
489 		linux_to_bsd_termios(&lios, &bios);
490 		return (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, p));
491 
492 	case LINUX_TCSETSW:
493 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
494 		if (error)
495 			return (error);
496 		linux_to_bsd_termios(&lios, &bios);
497 		return (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, p));
498 
499 	case LINUX_TCSETSF:
500 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
501 		if (error)
502 			return (error);
503 		linux_to_bsd_termios(&lios, &bios);
504 		return (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, p));
505 
506 	case LINUX_TCGETA:
507 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
508 		if (error)
509 			return (error);
510 		bsd_to_linux_termio(&bios, &lio);
511 		return (copyout(&lio, (caddr_t)args->arg, sizeof(lio)));
512 
513 	case LINUX_TCSETA:
514 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
515 		if (error)
516 			return (error);
517 		linux_to_bsd_termio(&lio, &bios);
518 		return (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, p));
519 
520 	case LINUX_TCSETAW:
521 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
522 		if (error)
523 			return (error);
524 		linux_to_bsd_termio(&lio, &bios);
525 		return (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, p));
526 
527 	case LINUX_TCSETAF:
528 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
529 		if (error)
530 			return (error);
531 		linux_to_bsd_termio(&lio, &bios);
532 		return (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, p));
533 
534 	/* LINUX_TCSBRK */
535 
536 	case LINUX_TCXONC: {
537 		switch (args->arg) {
538 		case LINUX_TCOOFF:
539 			args->cmd = TIOCSTOP;
540 			break;
541 		case LINUX_TCOON:
542 			args->cmd = TIOCSTART;
543 			break;
544 		case LINUX_TCIOFF:
545 		case LINUX_TCION: {
546 			int c;
547 			struct write_args wr;
548 			error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
549 			if (error)
550 				return (error);
551 			c = (args->arg == LINUX_TCIOFF) ? VSTOP : VSTART;
552 			c = bios.c_cc[c];
553 			if (c != _POSIX_VDISABLE) {
554 				wr.fd = args->fd;
555 				wr.buf = &c;
556 				wr.nbyte = sizeof(c);
557 				return (write(p, &wr));
558 			} else
559 				return (0);
560 		}
561 		default:
562 			return (EINVAL);
563 		}
564 		args->arg = 0;
565 		return (ioctl(p, (struct ioctl_args *)args));
566 	}
567 
568 	case LINUX_TCFLSH: {
569 		args->cmd = TIOCFLUSH;
570 		switch (args->arg) {
571 		case LINUX_TCIFLUSH:
572 			args->arg = FREAD;
573 			break;
574 		case LINUX_TCOFLUSH:
575 			args->arg = FWRITE;
576 			break;
577 		case LINUX_TCIOFLUSH:
578 			args->arg = FREAD | FWRITE;
579 			break;
580 		default:
581 			return (EINVAL);
582 		}
583 		return (ioctl(p, (struct ioctl_args *)args));
584 	}
585 
586 	case LINUX_TIOCEXCL:
587 		args->cmd = TIOCEXCL;
588 		return (ioctl(p, (struct ioctl_args *)args));
589 
590 	case LINUX_TIOCNXCL:
591 		args->cmd = TIOCNXCL;
592 		return (ioctl(p, (struct ioctl_args *)args));
593 
594 	/* LINUX_TIOCSCTTY */
595 
596 	case LINUX_TIOCGPGRP:
597 		args->cmd = TIOCGPGRP;
598 		return (ioctl(p, (struct ioctl_args *)args));
599 
600 	case LINUX_TIOCSPGRP:
601 		args->cmd = TIOCSPGRP;
602 		return (ioctl(p, (struct ioctl_args *)args));
603 
604 	/* LINUX_TIOCOUTQ */
605 	/* LINUX_TIOCSTI */
606 
607 	case LINUX_TIOCGWINSZ:
608 		args->cmd = TIOCGWINSZ;
609 		return (ioctl(p, (struct ioctl_args *)args));
610 
611 	case LINUX_TIOCSWINSZ:
612 		args->cmd = TIOCSWINSZ;
613 		return (ioctl(p, (struct ioctl_args *)args));
614 
615 	case LINUX_TIOCMGET:
616 		args->cmd = TIOCMGET;
617 		return (ioctl(p, (struct ioctl_args *)args));
618 
619 	case LINUX_TIOCMBIS:
620 		args->cmd = TIOCMBIS;
621 		return (ioctl(p, (struct ioctl_args *)args));
622 
623 	case LINUX_TIOCMBIC:
624 		args->cmd = TIOCMBIC;
625 		return (ioctl(p, (struct ioctl_args *)args));
626 
627 	case LINUX_TIOCMSET:
628 		args->cmd = TIOCMSET;
629 		return (ioctl(p, (struct ioctl_args *)args));
630 
631 	/* TIOCGSOFTCAR */
632 	/* TIOCSSOFTCAR */
633 
634 	case LINUX_FIONREAD: /* LINUX_TIOCINQ */
635 		args->cmd = FIONREAD;
636 		return (ioctl(p, (struct ioctl_args *)args));
637 
638 	/* LINUX_TIOCLINUX */
639 
640 	case LINUX_TIOCCONS:
641 		args->cmd = TIOCCONS;
642 		return (ioctl(p, (struct ioctl_args *)args));
643 
644 	case LINUX_TIOCGSERIAL: {
645 		struct linux_serial_struct lss;
646 		lss.type = LINUX_PORT_16550A;
647 		lss.flags = 0;
648 		lss.close_delay = 0;
649 		return copyout(&lss, (caddr_t)args->arg, sizeof(lss));
650 	}
651 
652 	case LINUX_TIOCSSERIAL: {
653 		struct linux_serial_struct lss;
654 		error = copyin((caddr_t)args->arg, &lss, sizeof(lss));
655 		if (error)
656 			return (error);
657 		/* XXX - It really helps to have an implementation that
658 		 * does nothing. NOT!
659 		 */
660 		return (0);
661 	}
662 
663 	/* LINUX_TIOCPKT */
664 
665 	case LINUX_FIONBIO:
666 		args->cmd = FIONBIO;
667 		return (ioctl(p, (struct ioctl_args *)args));
668 
669 	case LINUX_TIOCNOTTY:
670 		args->cmd = TIOCNOTTY;
671 		return (ioctl(p, (struct ioctl_args *)args));
672 
673 	case LINUX_TIOCSETD: {
674 		int line;
675 		switch (args->arg) {
676 		case LINUX_N_TTY:
677 			line = TTYDISC;
678 			break;
679 		case LINUX_N_SLIP:
680 			line = SLIPDISC;
681 			break;
682 		case LINUX_N_PPP:
683 			line = PPPDISC;
684 			break;
685 		default:
686 			return (EINVAL);
687 		}
688 		return (fo_ioctl(fp, TIOCSETD, (caddr_t)&line, p));
689 	}
690 
691 	case LINUX_TIOCGETD: {
692 		int linux_line;
693 		int bsd_line = TTYDISC;
694 		error = fo_ioctl(fp, TIOCGETD, (caddr_t)&bsd_line, p);
695 		if (error)
696 			return (error);
697 		switch (bsd_line) {
698 		case TTYDISC:
699 			linux_line = LINUX_N_TTY;
700 			break;
701 		case SLIPDISC:
702 			linux_line = LINUX_N_SLIP;
703 			break;
704 		case PPPDISC:
705 			linux_line = LINUX_N_PPP;
706 			break;
707 		default:
708 			return (EINVAL);
709 		}
710 		return (copyout(&linux_line, (caddr_t)args->arg, sizeof(int)));
711 	}
712 
713 	/* LINUX_TCSBRKP */
714 	/* LINUX_TIOCTTYGSTRUCT */
715 
716 	case LINUX_FIONCLEX:
717 		args->cmd = FIONCLEX;
718 		return (ioctl(p, (struct ioctl_args *)args));
719 
720 	case LINUX_FIOCLEX:
721 		args->cmd = FIOCLEX;
722 		return (ioctl(p, (struct ioctl_args *)args));
723 
724 	case LINUX_FIOASYNC:
725 		args->cmd = FIOASYNC;
726 		return (ioctl(p, (struct ioctl_args *)args));
727 
728 	/* LINUX_TIOCSERCONFIG */
729 	/* LINUX_TIOCSERGWILD */
730 	/* LINUX_TIOCSERSWILD */
731 	/* LINUX_TIOCGLCKTRMIOS */
732 	/* LINUX_TIOCSLCKTRMIOS */
733 
734 	}
735 
736 	return (ENOIOCTL);
737 }
738 
739 /*
740  * CDROM related ioctls
741  */
742 
743 struct linux_cdrom_msf
744 {
745 	u_char	cdmsf_min0;
746 	u_char	cdmsf_sec0;
747 	u_char	cdmsf_frame0;
748 	u_char	cdmsf_min1;
749 	u_char	cdmsf_sec1;
750 	u_char	cdmsf_frame1;
751 };
752 
753 struct linux_cdrom_tochdr
754 {
755 	u_char	cdth_trk0;
756 	u_char	cdth_trk1;
757 };
758 
759 union linux_cdrom_addr
760 {
761 	struct {
762 		u_char	minute;
763 		u_char	second;
764 		u_char	frame;
765 	} msf;
766 	int	lba;
767 };
768 
769 struct linux_cdrom_tocentry
770 {
771 	u_char	cdte_track;
772 	u_char	cdte_adr:4;
773 	u_char	cdte_ctrl:4;
774 	u_char	cdte_format;
775 	union linux_cdrom_addr cdte_addr;
776 	u_char	cdte_datamode;
777 };
778 
779 struct linux_cdrom_subchnl
780 {
781 	u_char	cdsc_format;
782 	u_char	cdsc_audiostatus;
783 	u_char	cdsc_adr:4;
784 	u_char	cdsc_ctrl:4;
785 	u_char	cdsc_trk;
786 	u_char	cdsc_ind;
787 	union linux_cdrom_addr cdsc_absaddr;
788 	union linux_cdrom_addr cdsc_reladdr;
789 };
790 
791 static void
792 bsd_to_linux_msf_lba(u_char af, union msf_lba *bp, union linux_cdrom_addr *lp)
793 {
794 	if (af == CD_LBA_FORMAT)
795 		lp->lba = bp->lba;
796 	else {
797 		lp->msf.minute = bp->msf.minute;
798 		lp->msf.second = bp->msf.second;
799 		lp->msf.frame = bp->msf.frame;
800 	}
801 }
802 
803 static void
804 set_linux_cdrom_addr(union linux_cdrom_addr *addr, int format, int lba)
805 {
806 	if (format == LINUX_CDROM_MSF) {
807 		addr->msf.frame = lba % 75;
808 		lba /= 75;
809 		lba += 2;
810 		addr->msf.second = lba % 60;
811 		addr->msf.minute = lba / 60;
812 	} else
813 		addr->lba = lba;
814 }
815 
816 static int
817 linux_ioctl_cdrom(struct proc *p, struct linux_ioctl_args *args)
818 {
819 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
820 	int error;
821 
822 	switch (args->cmd & 0xffff) {
823 
824 	case LINUX_CDROMPAUSE:
825 		args->cmd = CDIOCPAUSE;
826 		return (ioctl(p, (struct ioctl_args *)args));
827 
828 	case LINUX_CDROMRESUME:
829 		args->cmd = CDIOCRESUME;
830 		return (ioctl(p, (struct ioctl_args *)args));
831 
832 	case LINUX_CDROMPLAYMSF:
833 		args->cmd = CDIOCPLAYMSF;
834 		return (ioctl(p, (struct ioctl_args *)args));
835 
836 	case LINUX_CDROMPLAYTRKIND:
837 		args->cmd = CDIOCPLAYTRACKS;
838 		return (ioctl(p, (struct ioctl_args *)args));
839 
840 	case LINUX_CDROMREADTOCHDR: {
841 		struct ioc_toc_header th;
842 		struct linux_cdrom_tochdr lth;
843 		error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&th, p);
844 		if (!error) {
845 			lth.cdth_trk0 = th.starting_track;
846 			lth.cdth_trk1 = th.ending_track;
847 			copyout(&lth, (caddr_t)args->arg, sizeof(lth));
848 		}
849 		return (error);
850 	}
851 
852 	case LINUX_CDROMREADTOCENTRY: {
853 		struct linux_cdrom_tocentry lte, *ltep =
854 		    (struct linux_cdrom_tocentry *)args->arg;
855 		struct ioc_read_toc_single_entry irtse;
856 		irtse.address_format = ltep->cdte_format;
857 		irtse.track = ltep->cdte_track;
858 		error = fo_ioctl(fp, CDIOREADTOCENTRY, (caddr_t)&irtse, p);
859 		if (!error) {
860 			lte = *ltep;
861 			lte.cdte_ctrl = irtse.entry.control;
862 			lte.cdte_adr = irtse.entry.addr_type;
863 			bsd_to_linux_msf_lba(irtse.address_format,
864 			    &irtse.entry.addr, &lte.cdte_addr);
865 			copyout(&lte, (caddr_t)args->arg, sizeof(lte));
866 		}
867 		return (error);
868 	}
869 
870 	case LINUX_CDROMSTOP:
871 		args->cmd = CDIOCSTOP;
872 		return (ioctl(p, (struct ioctl_args *)args));
873 
874 	case LINUX_CDROMSTART:
875 		args->cmd = CDIOCSTART;
876 		return (ioctl(p, (struct ioctl_args *)args));
877 
878 	case LINUX_CDROMEJECT:
879 		args->cmd = CDIOCEJECT;
880 		return (ioctl(p, (struct ioctl_args *)args));
881 
882 	/* LINUX_CDROMVOLCTRL */
883 
884 	case LINUX_CDROMSUBCHNL: {
885 		struct linux_cdrom_subchnl sc;
886 		struct ioc_read_subchannel bsdsc;
887 		struct cd_sub_channel_info *bsdinfo;
888 		caddr_t sg = stackgap_init();
889 		bsdinfo = (struct cd_sub_channel_info*)stackgap_alloc(&sg,
890 		    sizeof(struct cd_sub_channel_info));
891 		bsdsc.address_format = CD_LBA_FORMAT;
892 		bsdsc.data_format = CD_CURRENT_POSITION;
893 		bsdsc.data_len = sizeof(struct cd_sub_channel_info);
894 		bsdsc.data = bsdinfo;
895 		error = fo_ioctl(fp, CDIOCREADSUBCHANNEL, (caddr_t)&bsdsc, p);
896 		if (error)
897 			return (error);
898 		error = copyin((caddr_t)args->arg, &sc,
899 		    sizeof(struct linux_cdrom_subchnl));
900 		if (error)
901 			return (error);
902 		sc.cdsc_audiostatus = bsdinfo->header.audio_status;
903 		sc.cdsc_adr = bsdinfo->what.position.addr_type;
904 		sc.cdsc_ctrl = bsdinfo->what.position.control;
905 		sc.cdsc_trk = bsdinfo->what.position.track_number;
906 		sc.cdsc_ind = bsdinfo->what.position.index_number;
907 		set_linux_cdrom_addr(&sc.cdsc_absaddr, sc.cdsc_format,
908 		    bsdinfo->what.position.absaddr.lba);
909 		set_linux_cdrom_addr(&sc.cdsc_reladdr, sc.cdsc_format,
910 		    bsdinfo->what.position.reladdr.lba);
911 		error = copyout(&sc, (caddr_t)args->arg,
912 		    sizeof(struct linux_cdrom_subchnl));
913 		return (error);
914 	}
915 
916 	/* LINUX_CDROMREADMODE2 */
917 	/* LINUX_CDROMREADMODE1 */
918 	/* LINUX_CDROMREADAUDIO */
919 	/* LINUX_CDROMEJECT_SW */
920 	/* LINUX_CDROMMULTISESSION */
921 	/* LINUX_CDROM_GET_UPC */
922 
923 	case LINUX_CDROMRESET:
924 		args->cmd = CDIOCRESET;
925 		return (ioctl(p, (struct ioctl_args *)args));
926 
927 	/* LINUX_CDROMVOLREAD */
928 	/* LINUX_CDROMREADRAW */
929 	/* LINUX_CDROMREADCOOKED */
930 	/* LINUX_CDROMSEEK */
931 	/* LINUX_CDROMPLAYBLK */
932 	/* LINUX_CDROMREADALL */
933 	/* LINUX_CDROMCLOSETRAY */
934 	/* LINUX_CDROMLOADFROMSLOT */
935 
936 	}
937 
938 	return (ENOIOCTL);
939 }
940 
941 /*
942  * Sound related ioctls
943  */
944 
945 static unsigned dirbits[4] = { IOC_VOID, IOC_IN, IOC_OUT, IOC_INOUT };
946 
947 #define	SETDIR(c)	(((c) & ~IOC_DIRMASK) | dirbits[args->cmd >> 30])
948 
949 static int
950 linux_ioctl_sound(struct proc *p, struct linux_ioctl_args *args)
951 {
952 
953 	switch (args->cmd & 0xffff) {
954 
955 	case LINUX_SOUND_MIXER_WRITE_VOLUME:
956 		args->cmd = SETDIR(SOUND_MIXER_WRITE_VOLUME);
957 		return (ioctl(p, (struct ioctl_args *)args));
958 
959 	case LINUX_SOUND_MIXER_WRITE_BASS:
960 		args->cmd = SETDIR(SOUND_MIXER_WRITE_BASS);
961 		return (ioctl(p, (struct ioctl_args *)args));
962 
963 	case LINUX_SOUND_MIXER_WRITE_TREBLE:
964 		args->cmd = SETDIR(SOUND_MIXER_WRITE_TREBLE);
965 		return (ioctl(p, (struct ioctl_args *)args));
966 
967 	case LINUX_SOUND_MIXER_WRITE_SYNTH:
968 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SYNTH);
969 		return (ioctl(p, (struct ioctl_args *)args));
970 
971 	case LINUX_SOUND_MIXER_WRITE_PCM:
972 		args->cmd = SETDIR(SOUND_MIXER_WRITE_PCM);
973 		return (ioctl(p, (struct ioctl_args *)args));
974 
975 	case LINUX_SOUND_MIXER_WRITE_SPEAKER:
976 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SPEAKER);
977 		return (ioctl(p, (struct ioctl_args *)args));
978 
979 	case LINUX_SOUND_MIXER_WRITE_LINE:
980 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE);
981 		return (ioctl(p, (struct ioctl_args *)args));
982 
983 	case LINUX_SOUND_MIXER_WRITE_MIC:
984 		args->cmd = SETDIR(SOUND_MIXER_WRITE_MIC);
985 		return (ioctl(p, (struct ioctl_args *)args));
986 
987 	case LINUX_SOUND_MIXER_WRITE_CD:
988 		args->cmd = SETDIR(SOUND_MIXER_WRITE_CD);
989 		return (ioctl(p, (struct ioctl_args *)args));
990 
991 	case LINUX_SOUND_MIXER_WRITE_IMIX:
992 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IMIX);
993 		return (ioctl(p, (struct ioctl_args *)args));
994 
995 	case LINUX_SOUND_MIXER_WRITE_ALTPCM:
996 		args->cmd = SETDIR(SOUND_MIXER_WRITE_ALTPCM);
997 		return (ioctl(p, (struct ioctl_args *)args));
998 
999 	case LINUX_SOUND_MIXER_WRITE_RECLEV:
1000 		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECLEV);
1001 		return (ioctl(p, (struct ioctl_args *)args));
1002 
1003 	case LINUX_SOUND_MIXER_WRITE_IGAIN:
1004 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IGAIN);
1005 		return (ioctl(p, (struct ioctl_args *)args));
1006 
1007 	case LINUX_SOUND_MIXER_WRITE_OGAIN:
1008 		args->cmd = SETDIR(SOUND_MIXER_WRITE_OGAIN);
1009 		return (ioctl(p, (struct ioctl_args *)args));
1010 
1011 	case LINUX_SOUND_MIXER_WRITE_LINE1:
1012 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE1);
1013 		return (ioctl(p, (struct ioctl_args *)args));
1014 
1015 	case LINUX_SOUND_MIXER_WRITE_LINE2:
1016 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE2);
1017 		return (ioctl(p, (struct ioctl_args *)args));
1018 
1019 	case LINUX_SOUND_MIXER_WRITE_LINE3:
1020 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE3);
1021 		return (ioctl(p, (struct ioctl_args *)args));
1022 
1023 	case LINUX_OSS_GETVERSION: {
1024 		int version = linux_get_oss_version(p);
1025 		return (copyout(&version, (caddr_t)args->arg, sizeof(int)));
1026 	}
1027 
1028 	case LINUX_SOUND_MIXER_READ_DEVMASK:
1029 		args->cmd = SOUND_MIXER_READ_DEVMASK;
1030 		return (ioctl(p, (struct ioctl_args *)args));
1031 
1032 	case LINUX_SNDCTL_DSP_RESET:
1033 		args->cmd = SNDCTL_DSP_RESET;
1034 		return (ioctl(p, (struct ioctl_args *)args));
1035 
1036 	case LINUX_SNDCTL_DSP_SYNC:
1037 		args->cmd = SNDCTL_DSP_SYNC;
1038 		return (ioctl(p, (struct ioctl_args *)args));
1039 
1040 	case LINUX_SNDCTL_DSP_SPEED:
1041 		args->cmd = SNDCTL_DSP_SPEED;
1042 		return (ioctl(p, (struct ioctl_args *)args));
1043 
1044 	case LINUX_SNDCTL_DSP_STEREO:
1045 		args->cmd = SNDCTL_DSP_STEREO;
1046 		return (ioctl(p, (struct ioctl_args *)args));
1047 
1048 	case LINUX_SNDCTL_DSP_GETBLKSIZE: /* LINUX_SNDCTL_DSP_SETBLKSIZE */
1049 		args->cmd = SNDCTL_DSP_GETBLKSIZE;
1050 		return (ioctl(p, (struct ioctl_args *)args));
1051 
1052 	case LINUX_SNDCTL_DSP_SETFMT:
1053 		args->cmd = SNDCTL_DSP_SETFMT;
1054 		return (ioctl(p, (struct ioctl_args *)args));
1055 
1056 	case LINUX_SOUND_PCM_WRITE_CHANNELS:
1057 		args->cmd = SOUND_PCM_WRITE_CHANNELS;
1058 		return (ioctl(p, (struct ioctl_args *)args));
1059 
1060 	case LINUX_SOUND_PCM_WRITE_FILTER:
1061 		args->cmd = SOUND_PCM_WRITE_FILTER;
1062 		return (ioctl(p, (struct ioctl_args *)args));
1063 
1064 	case LINUX_SNDCTL_DSP_POST:
1065 		args->cmd = SNDCTL_DSP_POST;
1066 		return (ioctl(p, (struct ioctl_args *)args));
1067 
1068 	case LINUX_SNDCTL_DSP_SUBDIVIDE:
1069 		args->cmd = SNDCTL_DSP_SUBDIVIDE;
1070 		return (ioctl(p, (struct ioctl_args *)args));
1071 
1072 	case LINUX_SNDCTL_DSP_SETFRAGMENT:
1073 		args->cmd = SNDCTL_DSP_SETFRAGMENT;
1074 		return (ioctl(p, (struct ioctl_args *)args));
1075 
1076 	case LINUX_SNDCTL_DSP_GETFMTS:
1077 		args->cmd = SNDCTL_DSP_GETFMTS;
1078 		return (ioctl(p, (struct ioctl_args *)args));
1079 
1080 	case LINUX_SNDCTL_DSP_GETOSPACE:
1081 		args->cmd = SNDCTL_DSP_GETOSPACE;
1082 		return (ioctl(p, (struct ioctl_args *)args));
1083 
1084 	case LINUX_SNDCTL_DSP_GETISPACE:
1085 		args->cmd = SNDCTL_DSP_GETISPACE;
1086 		return (ioctl(p, (struct ioctl_args *)args));
1087 
1088 	case LINUX_SNDCTL_DSP_NONBLOCK:
1089 		args->cmd = SNDCTL_DSP_NONBLOCK;
1090 		return (ioctl(p, (struct ioctl_args *)args));
1091 
1092 	case LINUX_SNDCTL_DSP_GETCAPS:
1093 		args->cmd = SNDCTL_DSP_GETCAPS;
1094 		return (ioctl(p, (struct ioctl_args *)args));
1095 
1096 	case LINUX_SNDCTL_DSP_SETTRIGGER: /* LINUX_SNDCTL_GETTRIGGER */
1097 		args->cmd = SNDCTL_DSP_SETTRIGGER;
1098 		return (ioctl(p, (struct ioctl_args *)args));
1099 
1100 	case LINUX_SNDCTL_DSP_GETIPTR:
1101 		args->cmd = SNDCTL_DSP_GETIPTR;
1102 		return (ioctl(p, (struct ioctl_args *)args));
1103 
1104 	case LINUX_SNDCTL_DSP_GETOPTR:
1105 		args->cmd = SNDCTL_DSP_GETOPTR;
1106 		return (ioctl(p, (struct ioctl_args *)args));
1107 
1108 	case LINUX_SNDCTL_DSP_GETODELAY:
1109 		args->cmd = SNDCTL_DSP_GETODELAY;
1110 		return (ioctl(p, (struct ioctl_args *)args));
1111 
1112 	case LINUX_SNDCTL_SEQ_RESET:
1113 		args->cmd = SNDCTL_SEQ_RESET;
1114 		return (ioctl(p, (struct ioctl_args *)args));
1115 
1116 	case LINUX_SNDCTL_SEQ_SYNC:
1117 		args->cmd = SNDCTL_SEQ_SYNC;
1118 		return (ioctl(p, (struct ioctl_args *)args));
1119 
1120 	case LINUX_SNDCTL_SYNTH_INFO:
1121 		args->cmd = SNDCTL_SYNTH_INFO;
1122 		return (ioctl(p, (struct ioctl_args *)args));
1123 
1124 	case LINUX_SNDCTL_SEQ_CTRLRATE:
1125 		args->cmd = SNDCTL_SEQ_CTRLRATE;
1126 		return (ioctl(p, (struct ioctl_args *)args));
1127 
1128 	case LINUX_SNDCTL_SEQ_GETOUTCOUNT:
1129 		args->cmd = SNDCTL_SEQ_GETOUTCOUNT;
1130 		return (ioctl(p, (struct ioctl_args *)args));
1131 
1132 	case LINUX_SNDCTL_SEQ_GETINCOUNT:
1133 		args->cmd = SNDCTL_SEQ_GETINCOUNT;
1134 		return (ioctl(p, (struct ioctl_args *)args));
1135 
1136 	case LINUX_SNDCTL_SEQ_PERCMODE:
1137 		args->cmd = SNDCTL_SEQ_PERCMODE;
1138 		return (ioctl(p, (struct ioctl_args *)args));
1139 
1140 	case LINUX_SNDCTL_FM_LOAD_INSTR:
1141 		args->cmd = SNDCTL_FM_LOAD_INSTR;
1142 		return (ioctl(p, (struct ioctl_args *)args));
1143 
1144 	case LINUX_SNDCTL_SEQ_TESTMIDI:
1145 		args->cmd = SNDCTL_SEQ_TESTMIDI;
1146 		return (ioctl(p, (struct ioctl_args *)args));
1147 
1148 	case LINUX_SNDCTL_SEQ_RESETSAMPLES:
1149 		args->cmd = SNDCTL_SEQ_RESETSAMPLES;
1150 		return (ioctl(p, (struct ioctl_args *)args));
1151 
1152 	case LINUX_SNDCTL_SEQ_NRSYNTHS:
1153 		args->cmd = SNDCTL_SEQ_NRSYNTHS;
1154 		return (ioctl(p, (struct ioctl_args *)args));
1155 
1156 	case LINUX_SNDCTL_SEQ_NRMIDIS:
1157 		args->cmd = SNDCTL_SEQ_NRMIDIS;
1158 		return (ioctl(p, (struct ioctl_args *)args));
1159 
1160 	case LINUX_SNDCTL_MIDI_INFO:
1161 		args->cmd = SNDCTL_MIDI_INFO;
1162 		return (ioctl(p, (struct ioctl_args *)args));
1163 
1164 	case LINUX_SNDCTL_SEQ_TRESHOLD:
1165 		args->cmd = SNDCTL_SEQ_TRESHOLD;
1166 		return (ioctl(p, (struct ioctl_args *)args));
1167 
1168 	case LINUX_SNDCTL_SYNTH_MEMAVL:
1169 		args->cmd = SNDCTL_SYNTH_MEMAVL;
1170 		return (ioctl(p, (struct ioctl_args *)args));
1171 
1172 	}
1173 
1174 	return (ENOIOCTL);
1175 }
1176 
1177 /*
1178  * Console related ioctls
1179  */
1180 
1181 #define ISSIGVALID(sig)		((sig) > 0 && (sig) < NSIG)
1182 
1183 static int
1184 linux_ioctl_console(struct proc *p, struct linux_ioctl_args *args)
1185 {
1186 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
1187 
1188 	switch (args->cmd & 0xffff) {
1189 
1190 	case LINUX_KIOCSOUND:
1191 		args->cmd = KIOCSOUND;
1192 		return (ioctl(p, (struct ioctl_args *)args));
1193 
1194 	case LINUX_KDMKTONE:
1195 		args->cmd = KDMKTONE;
1196 		return (ioctl(p, (struct ioctl_args *)args));
1197 
1198 	case LINUX_KDGETLED:
1199 		args->cmd = KDGETLED;
1200 		return (ioctl(p, (struct ioctl_args *)args));
1201 
1202 	case LINUX_KDSETLED:
1203 		args->cmd = KDSETLED;
1204 		return (ioctl(p, (struct ioctl_args *)args));
1205 
1206 	case LINUX_KDSETMODE:
1207 		args->cmd = KDSETMODE;
1208 		return (ioctl(p, (struct ioctl_args *)args));
1209 
1210 	case LINUX_KDGETMODE:
1211 		args->cmd = KDGETMODE;
1212 		return (ioctl(p, (struct ioctl_args *)args));
1213 
1214 	case LINUX_KDGKBMODE:
1215 		args->cmd = KDGKBMODE;
1216 		return (ioctl(p, (struct ioctl_args *)args));
1217 
1218 	case LINUX_KDSKBMODE: {
1219 		int kbdmode;
1220 		switch (args->arg) {
1221 		case LINUX_KBD_RAW:
1222 			kbdmode = K_RAW;
1223 			break;
1224 		case LINUX_KBD_XLATE:
1225 			kbdmode = K_XLATE;
1226 			break;
1227 		case LINUX_KBD_MEDIUMRAW:
1228 			kbdmode = K_RAW;
1229 			break;
1230 		default:
1231 			return (EINVAL);
1232 		}
1233 		return (fo_ioctl(fp, KDSKBMODE, (caddr_t)&kbdmode, p));
1234 	}
1235 
1236 	case LINUX_VT_OPENQRY:
1237 		args->cmd = VT_OPENQRY;
1238 		return (ioctl(p, (struct ioctl_args *)args));
1239 
1240 	case LINUX_VT_GETMODE:
1241 		args->cmd = VT_GETMODE;
1242 		return  (ioctl(p, (struct ioctl_args *)args));
1243 
1244 	case LINUX_VT_SETMODE: {
1245 		struct vt_mode *mode;
1246 		args->cmd = VT_SETMODE;
1247 		mode = (struct vt_mode *)args->arg;
1248 		if (!ISSIGVALID(mode->frsig) && ISSIGVALID(mode->acqsig))
1249 			mode->frsig = mode->acqsig;
1250 		return (ioctl(p, (struct ioctl_args *)args));
1251 	}
1252 
1253 	case LINUX_VT_GETSTATE:
1254 		args->cmd = VT_GETACTIVE;
1255 		return (ioctl(p, (struct ioctl_args *)args));
1256 
1257 	case LINUX_VT_RELDISP:
1258 		args->cmd = VT_RELDISP;
1259 		return (ioctl(p, (struct ioctl_args *)args));
1260 
1261 	case LINUX_VT_ACTIVATE:
1262 		args->cmd = VT_ACTIVATE;
1263 		return (ioctl(p, (struct ioctl_args *)args));
1264 
1265 	case LINUX_VT_WAITACTIVE:
1266 		args->cmd = VT_WAITACTIVE;
1267 		return (ioctl(p, (struct ioctl_args *)args));
1268 
1269 	}
1270 
1271 	return (ENOIOCTL);
1272 }
1273 
1274 /*
1275  * Socket related ioctls
1276  */
1277 
1278 static int
1279 linux_ioctl_socket(struct proc *p, struct linux_ioctl_args *args)
1280 {
1281 
1282 	switch (args->cmd & 0xffff) {
1283 
1284 	case LINUX_FIOSETOWN:
1285 		args->cmd = FIOSETOWN;
1286 		return (ioctl(p, (struct ioctl_args *)args));
1287 
1288 	case LINUX_SIOCSPGRP:
1289 		args->cmd = SIOCSPGRP;
1290 		return (ioctl(p, (struct ioctl_args *)args));
1291 
1292 	case LINUX_FIOGETOWN:
1293 		args->cmd = FIOGETOWN;
1294 		return (ioctl(p, (struct ioctl_args *)args));
1295 
1296 	case LINUX_SIOCGPGRP:
1297 		args->cmd = SIOCGPGRP;
1298 		return (ioctl(p, (struct ioctl_args *)args));
1299 
1300 	case LINUX_SIOCATMARK:
1301 		args->cmd = SIOCATMARK;
1302 		return (ioctl(p, (struct ioctl_args *)args));
1303 
1304 	/* LINUX_SIOCGSTAMP */
1305 
1306 	case LINUX_SIOCGIFCONF:
1307 		args->cmd = OSIOCGIFCONF;
1308 		return (ioctl(p, (struct ioctl_args *)args));
1309 
1310 	case LINUX_SIOCGIFFLAGS:
1311 		args->cmd = SIOCGIFFLAGS;
1312 		return (ioctl(p, (struct ioctl_args *)args));
1313 
1314 	case LINUX_SIOCGIFADDR:
1315 		args->cmd = OSIOCGIFADDR;
1316 		return (ioctl(p, (struct ioctl_args *)args));
1317 
1318 	case LINUX_SIOCGIFDSTADDR:
1319 		args->cmd = OSIOCGIFDSTADDR;
1320 		return (ioctl(p, (struct ioctl_args *)args));
1321 
1322 	case LINUX_SIOCGIFBRDADDR:
1323 		args->cmd = OSIOCGIFBRDADDR;
1324 		return (ioctl(p, (struct ioctl_args *)args));
1325 
1326 	case LINUX_SIOCGIFNETMASK:
1327 		args->cmd = OSIOCGIFNETMASK;
1328 		return (ioctl(p, (struct ioctl_args *)args));
1329 
1330 	case LINUX_SIOCGIFHWADDR: {
1331 		int ifn;
1332 		struct ifnet *ifp;
1333 		struct ifaddr *ifa;
1334 		struct sockaddr_dl *sdl;
1335 		struct linux_ifreq *ifr = (struct linux_ifreq *)args->arg;
1336 
1337 		/* Note that we don't actually respect the name in the ifreq
1338 		 * structure, as Linux interface names are all different.
1339 		 */
1340 		for (ifn = 0; ifn < if_index; ifn++) {
1341 			ifp = ifnet_addrs[ifn]->ifa_ifp;
1342 			if (ifp->if_type == IFT_ETHER) {
1343 				ifa = TAILQ_FIRST(&ifp->if_addrhead);
1344 				while (ifa) {
1345 					sdl=(struct sockaddr_dl*)ifa->ifa_addr;
1346 					if (sdl != NULL &&
1347 					    (sdl->sdl_family == AF_LINK) &&
1348 					    (sdl->sdl_type == IFT_ETHER)) {
1349 						return (copyout(LLADDR(sdl),
1350 						    &ifr->ifr_hwaddr.sa_data,
1351 						    LINUX_IFHWADDRLEN));
1352 					}
1353 					ifa = TAILQ_NEXT(ifa, ifa_link);
1354 				}
1355 			}
1356 		}
1357 		return (ENOENT);
1358 	}
1359 
1360 	case LINUX_SIOCADDMULTI:
1361 		args->cmd = SIOCADDMULTI;
1362 		return (ioctl(p, (struct ioctl_args *)args));
1363 
1364 	case LINUX_SIOCDELMULTI:
1365 		args->cmd = SIOCDELMULTI;
1366 		return (ioctl(p, (struct ioctl_args *)args));
1367 
1368 	}
1369 
1370 	return (ENOIOCTL);
1371 }
1372 
1373 /*
1374  * main ioctl syscall function
1375  */
1376 
1377 int
1378 linux_ioctl(struct proc *p, struct linux_ioctl_args *args)
1379 {
1380 	struct filedesc *fdp = p->p_fd;
1381 	struct file *fp;
1382 	struct handler_element *he;
1383 	int error, cmd;
1384 
1385 #ifdef DEBUG
1386 	printf("Linux-emul(%ld): ioctl(%d, %04lx, *)\n", (long)p->p_pid,
1387 	    args->fd, args->cmd);
1388 #endif
1389 
1390 	if ((unsigned)args->fd >= fdp->fd_nfiles)
1391 		return (EBADF);
1392 
1393 	fp = fdp->fd_ofiles[args->fd];
1394 	if (fp == NULL || (fp->f_flag & (FREAD|FWRITE)) == 0)
1395 		return (EBADF);
1396 
1397 	/* Iterate over the ioctl handlers */
1398 	cmd = args->cmd & 0xffff;
1399 	TAILQ_FOREACH(he, &handlers, list) {
1400 		if (cmd >= he->low && cmd <= he->high) {
1401 			error = (*he->func)(p, args);
1402 			if (error != ENOIOCTL)
1403 				return (error);
1404 		}
1405 	}
1406 
1407 	printf("linux: 'ioctl' fd=%d, cmd=%x ('%c',%d) not implemented\n",
1408 	    args->fd, (int)(args->cmd & 0xffff),
1409 	    (int)(args->cmd & 0xff00) >> 8, (int)(args->cmd & 0xff));
1410 
1411 	return (EINVAL);
1412 }
1413 
1414 int
1415 linux_ioctl_register_handler(struct linux_ioctl_handler *h)
1416 {
1417 	struct handler_element *he, *cur;
1418 
1419 	if (h == NULL || h->func == NULL)
1420 		return (EINVAL);
1421 
1422 	/*
1423 	 * Reuse the element if the handler is already on the list, otherwise
1424 	 * create a new element.
1425 	 */
1426 	TAILQ_FOREACH(he, &handlers, list) {
1427 		if (he->func == h->func)
1428 			break;
1429 	}
1430 	if (he == NULL) {
1431 		MALLOC(he, struct handler_element *, sizeof(*he),
1432 		    M_LINUX, M_WAITOK);
1433 		he->func = h->func;
1434 	} else
1435 		TAILQ_REMOVE(&handlers, he, list);
1436 
1437 	/* Initialize range information. */
1438 	he->low = h->low;
1439 	he->high = h->high;
1440 	he->span = h->high - h->low + 1;
1441 
1442 	/* Add the element to the list, sorted on span. */
1443 	TAILQ_FOREACH(cur, &handlers, list) {
1444 		if (cur->span > he->span) {
1445 			TAILQ_INSERT_BEFORE(cur, he, list);
1446 			return (0);
1447 		}
1448 	}
1449 	TAILQ_INSERT_TAIL(&handlers, he, list);
1450 
1451 	return (0);
1452 }
1453 
1454 int
1455 linux_ioctl_unregister_handler(struct linux_ioctl_handler *h)
1456 {
1457 	struct handler_element *he;
1458 
1459 	if (h == NULL || h->func == NULL)
1460 		return (EINVAL);
1461 
1462 	TAILQ_FOREACH(he, &handlers, list) {
1463 		if (he->func == h->func) {
1464 			TAILQ_REMOVE(&handlers, he, list);
1465 			FREE(he, M_LINUX);
1466 			return (0);
1467 		}
1468 	}
1469 
1470 	return (EINVAL);
1471 }
1472 
1473 int
1474 linux_ioctl_register_handlers(struct linker_set *s)
1475 {
1476 	int error, i;
1477 
1478 	if (s == NULL)
1479 		return (EINVAL);
1480 
1481 	for (i = 0; i < s->ls_length; i++) {
1482 		error = linux_ioctl_register_handler(s->ls_items[i]);
1483 		if (error)
1484 			return (error);
1485 	}
1486 
1487 	return (0);
1488 }
1489 
1490 int
1491 linux_ioctl_unregister_handlers(struct linker_set *s)
1492 {
1493 	int error, i;
1494 
1495 	if (s == NULL)
1496 		return (EINVAL);
1497 
1498 	for (i = 0; i < s->ls_length; i++) {
1499 		error = linux_ioctl_unregister_handler(s->ls_items[i]);
1500 		if (error)
1501 			return (error);
1502 	}
1503 
1504 	return (0);
1505 }
1506