xref: /freebsd/sys/compat/linux/linux_ioctl.c (revision 5521ff5a4d1929056e7ffc982fac3341ca54df7c)
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,
114 		     sizeof(dl.d_secperunit)));
115 		break;
116 	}
117 	return (ENOIOCTL);
118 }
119 
120 /*
121  * termio related ioctls
122  */
123 
124 struct linux_termio {
125 	unsigned short c_iflag;
126 	unsigned short c_oflag;
127 	unsigned short c_cflag;
128 	unsigned short c_lflag;
129 	unsigned char c_line;
130 	unsigned char c_cc[LINUX_NCC];
131 };
132 
133 struct linux_termios {
134 	unsigned int c_iflag;
135 	unsigned int c_oflag;
136 	unsigned int c_cflag;
137 	unsigned int c_lflag;
138 #ifdef __alpha__
139 	unsigned char c_cc[LINUX_NCCS];
140 	unsigned char c_line;
141 	unsigned int  c_ispeed;
142 	unsigned int  c_ospeed;
143 #else
144 	unsigned char c_line;
145 	unsigned char c_cc[LINUX_NCCS];
146 #endif
147 };
148 
149 struct linux_winsize {
150 	unsigned short ws_row, ws_col;
151 	unsigned short ws_xpixel, ws_ypixel;
152 };
153 
154 static struct speedtab sptab[] = {
155 	{ B0, LINUX_B0 }, { B50, LINUX_B50 },
156 	{ B75, LINUX_B75 }, { B110, LINUX_B110 },
157 	{ B134, LINUX_B134 }, { B150, LINUX_B150 },
158 	{ B200, LINUX_B200 }, { B300, LINUX_B300 },
159 	{ B600, LINUX_B600 }, { B1200, LINUX_B1200 },
160 	{ B1800, LINUX_B1800 }, { B2400, LINUX_B2400 },
161 	{ B4800, LINUX_B4800 }, { B9600, LINUX_B9600 },
162 	{ B19200, LINUX_B19200 }, { B38400, LINUX_B38400 },
163 	{ B57600, LINUX_B57600 }, { B115200, LINUX_B115200 },
164 	{-1, -1 }
165 };
166 
167 struct linux_serial_struct {
168 	int	type;
169 	int	line;
170 	int	port;
171 	int	irq;
172 	int	flags;
173 	int	xmit_fifo_size;
174 	int	custom_divisor;
175 	int	baud_base;
176 	unsigned short close_delay;
177 	char	reserved_char[2];
178 	int	hub6;
179 	unsigned short closing_wait;
180 	unsigned short closing_wait2;
181 	int	reserved[4];
182 };
183 
184 static int
185 linux_to_bsd_speed(int code, struct speedtab *table)
186 {
187 	for ( ; table->sp_code != -1; table++)
188 		if (table->sp_code == code)
189 			return (table->sp_speed);
190 	return -1;
191 }
192 
193 static int
194 bsd_to_linux_speed(int speed, struct speedtab *table)
195 {
196 	for ( ; table->sp_speed != -1; table++)
197 		if (table->sp_speed == speed)
198 			return (table->sp_code);
199 	return -1;
200 }
201 
202 static void
203 bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
204 {
205 	int i;
206 
207 #ifdef DEBUG
208 	if (ldebug(ioctl)) {
209 		printf("LINUX: BSD termios structure (input):\n");
210 		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
211 		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
212 		    bios->c_ispeed, bios->c_ospeed);
213 		printf("c_cc ");
214 		for (i=0; i<NCCS; i++)
215 			printf("%02x ", bios->c_cc[i]);
216 		printf("\n");
217 	}
218 #endif
219 
220 	lios->c_iflag = 0;
221 	if (bios->c_iflag & IGNBRK)
222 		lios->c_iflag |= LINUX_IGNBRK;
223 	if (bios->c_iflag & BRKINT)
224 		lios->c_iflag |= LINUX_BRKINT;
225 	if (bios->c_iflag & IGNPAR)
226 		lios->c_iflag |= LINUX_IGNPAR;
227 	if (bios->c_iflag & PARMRK)
228 		lios->c_iflag |= LINUX_PARMRK;
229 	if (bios->c_iflag & INPCK)
230 		lios->c_iflag |= LINUX_INPCK;
231 	if (bios->c_iflag & ISTRIP)
232 		lios->c_iflag |= LINUX_ISTRIP;
233 	if (bios->c_iflag & INLCR)
234 		lios->c_iflag |= LINUX_INLCR;
235 	if (bios->c_iflag & IGNCR)
236 		lios->c_iflag |= LINUX_IGNCR;
237 	if (bios->c_iflag & ICRNL)
238 		lios->c_iflag |= LINUX_ICRNL;
239 	if (bios->c_iflag & IXON)
240 		lios->c_iflag |= LINUX_IXON;
241 	if (bios->c_iflag & IXANY)
242 		lios->c_iflag |= LINUX_IXANY;
243 	if (bios->c_iflag & IXOFF)
244 		lios->c_iflag |= LINUX_IXOFF;
245 	if (bios->c_iflag & IMAXBEL)
246 		lios->c_iflag |= LINUX_IMAXBEL;
247 
248 	lios->c_oflag = 0;
249 	if (bios->c_oflag & OPOST)
250 		lios->c_oflag |= LINUX_OPOST;
251 	if (bios->c_oflag & ONLCR)
252 		lios->c_oflag |= LINUX_ONLCR;
253 	if (bios->c_oflag & OXTABS)
254 		lios->c_oflag |= LINUX_XTABS;
255 
256 	lios->c_cflag = bsd_to_linux_speed(bios->c_ispeed, sptab);
257 	lios->c_cflag |= (bios->c_cflag & CSIZE) >> 4;
258 	if (bios->c_cflag & CSTOPB)
259 		lios->c_cflag |= LINUX_CSTOPB;
260 	if (bios->c_cflag & CREAD)
261 		lios->c_cflag |= LINUX_CREAD;
262 	if (bios->c_cflag & PARENB)
263 		lios->c_cflag |= LINUX_PARENB;
264 	if (bios->c_cflag & PARODD)
265 		lios->c_cflag |= LINUX_PARODD;
266 	if (bios->c_cflag & HUPCL)
267 		lios->c_cflag |= LINUX_HUPCL;
268 	if (bios->c_cflag & CLOCAL)
269 		lios->c_cflag |= LINUX_CLOCAL;
270 	if (bios->c_cflag & CRTSCTS)
271 		lios->c_cflag |= LINUX_CRTSCTS;
272 
273 	lios->c_lflag = 0;
274 	if (bios->c_lflag & ISIG)
275 		lios->c_lflag |= LINUX_ISIG;
276 	if (bios->c_lflag & ICANON)
277 		lios->c_lflag |= LINUX_ICANON;
278 	if (bios->c_lflag & ECHO)
279 		lios->c_lflag |= LINUX_ECHO;
280 	if (bios->c_lflag & ECHOE)
281 		lios->c_lflag |= LINUX_ECHOE;
282 	if (bios->c_lflag & ECHOK)
283 		lios->c_lflag |= LINUX_ECHOK;
284 	if (bios->c_lflag & ECHONL)
285 		lios->c_lflag |= LINUX_ECHONL;
286 	if (bios->c_lflag & NOFLSH)
287 		lios->c_lflag |= LINUX_NOFLSH;
288 	if (bios->c_lflag & TOSTOP)
289 		lios->c_lflag |= LINUX_TOSTOP;
290 	if (bios->c_lflag & ECHOCTL)
291 		lios->c_lflag |= LINUX_ECHOCTL;
292 	if (bios->c_lflag & ECHOPRT)
293 		lios->c_lflag |= LINUX_ECHOPRT;
294 	if (bios->c_lflag & ECHOKE)
295 		lios->c_lflag |= LINUX_ECHOKE;
296 	if (bios->c_lflag & FLUSHO)
297 		lios->c_lflag |= LINUX_FLUSHO;
298 	if (bios->c_lflag & PENDIN)
299 		lios->c_lflag |= LINUX_PENDIN;
300 	if (bios->c_lflag & IEXTEN)
301 		lios->c_lflag |= LINUX_IEXTEN;
302 
303 	for (i=0; i<LINUX_NCCS; i++)
304 		lios->c_cc[i] = LINUX_POSIX_VDISABLE;
305 	lios->c_cc[LINUX_VINTR] = bios->c_cc[VINTR];
306 	lios->c_cc[LINUX_VQUIT] = bios->c_cc[VQUIT];
307 	lios->c_cc[LINUX_VERASE] = bios->c_cc[VERASE];
308 	lios->c_cc[LINUX_VKILL] = bios->c_cc[VKILL];
309 	lios->c_cc[LINUX_VEOF] = bios->c_cc[VEOF];
310 	lios->c_cc[LINUX_VEOL] = bios->c_cc[VEOL];
311 	lios->c_cc[LINUX_VMIN] = bios->c_cc[VMIN];
312 	lios->c_cc[LINUX_VTIME] = bios->c_cc[VTIME];
313 	lios->c_cc[LINUX_VEOL2] = bios->c_cc[VEOL2];
314 	lios->c_cc[LINUX_VSUSP] = bios->c_cc[VSUSP];
315 	lios->c_cc[LINUX_VSTART] = bios->c_cc[VSTART];
316 	lios->c_cc[LINUX_VSTOP] = bios->c_cc[VSTOP];
317 	lios->c_cc[LINUX_VREPRINT] = bios->c_cc[VREPRINT];
318 	lios->c_cc[LINUX_VDISCARD] = bios->c_cc[VDISCARD];
319 	lios->c_cc[LINUX_VWERASE] = bios->c_cc[VWERASE];
320 	lios->c_cc[LINUX_VLNEXT] = bios->c_cc[VLNEXT];
321 
322 	for (i=0; i<LINUX_NCCS; i++) {
323 		if (lios->c_cc[i] == _POSIX_VDISABLE)
324 			lios->c_cc[i] = LINUX_POSIX_VDISABLE;
325 	}
326 	lios->c_line = 0;
327 
328 #ifdef DEBUG
329 	if (ldebug(ioctl)) {
330 		printf("LINUX: LINUX termios structure (output):\n");
331 		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
332 		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
333 		    lios->c_lflag, (int)lios->c_line);
334 		printf("c_cc ");
335 		for (i=0; i<LINUX_NCCS; i++)
336 			printf("%02x ", lios->c_cc[i]);
337 		printf("\n");
338 	}
339 #endif
340 }
341 
342 static void
343 linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
344 {
345 	int i;
346 
347 #ifdef DEBUG
348 	if (ldebug(ioctl)) {
349 		printf("LINUX: LINUX termios structure (input):\n");
350 		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
351 		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
352 		    lios->c_lflag, (int)lios->c_line);
353 		printf("c_cc ");
354 		for (i=0; i<LINUX_NCCS; i++)
355 			printf("%02x ", lios->c_cc[i]);
356 		printf("\n");
357 	}
358 #endif
359 
360 	bios->c_iflag = 0;
361 	if (lios->c_iflag & LINUX_IGNBRK)
362 		bios->c_iflag |= IGNBRK;
363 	if (lios->c_iflag & LINUX_BRKINT)
364 		bios->c_iflag |= BRKINT;
365 	if (lios->c_iflag & LINUX_IGNPAR)
366 		bios->c_iflag |= IGNPAR;
367 	if (lios->c_iflag & LINUX_PARMRK)
368 		bios->c_iflag |= PARMRK;
369 	if (lios->c_iflag & LINUX_INPCK)
370 		bios->c_iflag |= INPCK;
371 	if (lios->c_iflag & LINUX_ISTRIP)
372 		bios->c_iflag |= ISTRIP;
373 	if (lios->c_iflag & LINUX_INLCR)
374 		bios->c_iflag |= INLCR;
375 	if (lios->c_iflag & LINUX_IGNCR)
376 		bios->c_iflag |= IGNCR;
377 	if (lios->c_iflag & LINUX_ICRNL)
378 		bios->c_iflag |= ICRNL;
379 	if (lios->c_iflag & LINUX_IXON)
380 		bios->c_iflag |= IXON;
381 	if (lios->c_iflag & LINUX_IXANY)
382 		bios->c_iflag |= IXANY;
383 	if (lios->c_iflag & LINUX_IXOFF)
384 		bios->c_iflag |= IXOFF;
385 	if (lios->c_iflag & LINUX_IMAXBEL)
386 		bios->c_iflag |= IMAXBEL;
387 
388 	bios->c_oflag = 0;
389 	if (lios->c_oflag & LINUX_OPOST)
390 		bios->c_oflag |= OPOST;
391 	if (lios->c_oflag & LINUX_ONLCR)
392 		bios->c_oflag |= ONLCR;
393 	if (lios->c_oflag & LINUX_XTABS)
394 		bios->c_oflag |= OXTABS;
395 
396 	bios->c_cflag = (lios->c_cflag & LINUX_CSIZE) << 4;
397 	if (lios->c_cflag & LINUX_CSTOPB)
398 		bios->c_cflag |= CSTOPB;
399 	if (lios->c_cflag & LINUX_CREAD)
400 		bios->c_cflag |= CREAD;
401 	if (lios->c_cflag & LINUX_PARENB)
402 		bios->c_cflag |= PARENB;
403 	if (lios->c_cflag & LINUX_PARODD)
404 		bios->c_cflag |= PARODD;
405 	if (lios->c_cflag & LINUX_HUPCL)
406 		bios->c_cflag |= HUPCL;
407 	if (lios->c_cflag & LINUX_CLOCAL)
408 		bios->c_cflag |= CLOCAL;
409 	if (lios->c_cflag & LINUX_CRTSCTS)
410 		bios->c_cflag |= CRTSCTS;
411 
412 	bios->c_lflag = 0;
413 	if (lios->c_lflag & LINUX_ISIG)
414 		bios->c_lflag |= ISIG;
415 	if (lios->c_lflag & LINUX_ICANON)
416 		bios->c_lflag |= ICANON;
417 	if (lios->c_lflag & LINUX_ECHO)
418 		bios->c_lflag |= ECHO;
419 	if (lios->c_lflag & LINUX_ECHOE)
420 		bios->c_lflag |= ECHOE;
421 	if (lios->c_lflag & LINUX_ECHOK)
422 		bios->c_lflag |= ECHOK;
423 	if (lios->c_lflag & LINUX_ECHONL)
424 		bios->c_lflag |= ECHONL;
425 	if (lios->c_lflag & LINUX_NOFLSH)
426 		bios->c_lflag |= NOFLSH;
427 	if (lios->c_lflag & LINUX_TOSTOP)
428 		bios->c_lflag |= TOSTOP;
429 	if (lios->c_lflag & LINUX_ECHOCTL)
430 		bios->c_lflag |= ECHOCTL;
431 	if (lios->c_lflag & LINUX_ECHOPRT)
432 		bios->c_lflag |= ECHOPRT;
433 	if (lios->c_lflag & LINUX_ECHOKE)
434 		bios->c_lflag |= ECHOKE;
435 	if (lios->c_lflag & LINUX_FLUSHO)
436 		bios->c_lflag |= FLUSHO;
437 	if (lios->c_lflag & LINUX_PENDIN)
438 		bios->c_lflag |= PENDIN;
439 	if (lios->c_lflag & LINUX_IEXTEN)
440 		bios->c_lflag |= IEXTEN;
441 
442 	for (i=0; i<NCCS; i++)
443 		bios->c_cc[i] = _POSIX_VDISABLE;
444 	bios->c_cc[VINTR] = lios->c_cc[LINUX_VINTR];
445 	bios->c_cc[VQUIT] = lios->c_cc[LINUX_VQUIT];
446 	bios->c_cc[VERASE] = lios->c_cc[LINUX_VERASE];
447 	bios->c_cc[VKILL] = lios->c_cc[LINUX_VKILL];
448 	bios->c_cc[VEOF] = lios->c_cc[LINUX_VEOF];
449 	bios->c_cc[VEOL] = lios->c_cc[LINUX_VEOL];
450 	bios->c_cc[VMIN] = lios->c_cc[LINUX_VMIN];
451 	bios->c_cc[VTIME] = lios->c_cc[LINUX_VTIME];
452 	bios->c_cc[VEOL2] = lios->c_cc[LINUX_VEOL2];
453 	bios->c_cc[VSUSP] = lios->c_cc[LINUX_VSUSP];
454 	bios->c_cc[VSTART] = lios->c_cc[LINUX_VSTART];
455 	bios->c_cc[VSTOP] = lios->c_cc[LINUX_VSTOP];
456 	bios->c_cc[VREPRINT] = lios->c_cc[LINUX_VREPRINT];
457 	bios->c_cc[VDISCARD] = lios->c_cc[LINUX_VDISCARD];
458 	bios->c_cc[VWERASE] = lios->c_cc[LINUX_VWERASE];
459 	bios->c_cc[VLNEXT] = lios->c_cc[LINUX_VLNEXT];
460 
461 	for (i=0; i<NCCS; i++) {
462 		if (bios->c_cc[i] == LINUX_POSIX_VDISABLE)
463 			bios->c_cc[i] = _POSIX_VDISABLE;
464 	}
465 
466 	bios->c_ispeed = bios->c_ospeed =
467 	    linux_to_bsd_speed(lios->c_cflag & LINUX_CBAUD, sptab);
468 
469 #ifdef DEBUG
470 	if (ldebug(ioctl)) {
471 		printf("LINUX: BSD termios structure (output):\n");
472 		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
473 		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
474 		    bios->c_ispeed, bios->c_ospeed);
475 		printf("c_cc ");
476 		for (i=0; i<NCCS; i++)
477 			printf("%02x ", bios->c_cc[i]);
478 		printf("\n");
479 	}
480 #endif
481 }
482 
483 static void
484 bsd_to_linux_termio(struct termios *bios, struct linux_termio *lio)
485 {
486 	struct linux_termios lios;
487 
488 	bsd_to_linux_termios(bios, &lios);
489 	lio->c_iflag = lios.c_iflag;
490 	lio->c_oflag = lios.c_oflag;
491 	lio->c_cflag = lios.c_cflag;
492 	lio->c_lflag = lios.c_lflag;
493 	lio->c_line  = lios.c_line;
494 	memcpy(lio->c_cc, lios.c_cc, LINUX_NCC);
495 }
496 
497 static void
498 linux_to_bsd_termio(struct linux_termio *lio, struct termios *bios)
499 {
500 	struct linux_termios lios;
501 	int i;
502 
503 	lios.c_iflag = lio->c_iflag;
504 	lios.c_oflag = lio->c_oflag;
505 	lios.c_cflag = lio->c_cflag;
506 	lios.c_lflag = lio->c_lflag;
507 	for (i=LINUX_NCC; i<LINUX_NCCS; i++)
508 		lios.c_cc[i] = LINUX_POSIX_VDISABLE;
509 	memcpy(lios.c_cc, lio->c_cc, LINUX_NCC);
510 	linux_to_bsd_termios(&lios, bios);
511 }
512 
513 static int
514 linux_ioctl_termio(struct proc *p, struct linux_ioctl_args *args)
515 {
516 	struct termios bios;
517 	struct linux_termios lios;
518 	struct linux_termio lio;
519 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
520 	int error;
521 
522 	switch (args->cmd & 0xffff) {
523 
524 	case LINUX_TCGETS:
525 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
526 		if (error)
527 			return (error);
528 		bsd_to_linux_termios(&bios, &lios);
529 		return copyout(&lios, (caddr_t)args->arg, sizeof(lios));
530 
531 	case LINUX_TCSETS:
532 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
533 		if (error)
534 			return (error);
535 		linux_to_bsd_termios(&lios, &bios);
536 		return (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, p));
537 
538 	case LINUX_TCSETSW:
539 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
540 		if (error)
541 			return (error);
542 		linux_to_bsd_termios(&lios, &bios);
543 		return (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, p));
544 
545 	case LINUX_TCSETSF:
546 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
547 		if (error)
548 			return (error);
549 		linux_to_bsd_termios(&lios, &bios);
550 		return (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, p));
551 
552 	case LINUX_TCGETA:
553 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
554 		if (error)
555 			return (error);
556 		bsd_to_linux_termio(&bios, &lio);
557 		return (copyout(&lio, (caddr_t)args->arg, sizeof(lio)));
558 
559 	case LINUX_TCSETA:
560 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
561 		if (error)
562 			return (error);
563 		linux_to_bsd_termio(&lio, &bios);
564 		return (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, p));
565 
566 	case LINUX_TCSETAW:
567 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
568 		if (error)
569 			return (error);
570 		linux_to_bsd_termio(&lio, &bios);
571 		return (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, p));
572 
573 	case LINUX_TCSETAF:
574 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
575 		if (error)
576 			return (error);
577 		linux_to_bsd_termio(&lio, &bios);
578 		return (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, p));
579 
580 	/* LINUX_TCSBRK */
581 
582 	case LINUX_TCXONC: {
583 		switch (args->arg) {
584 		case LINUX_TCOOFF:
585 			args->cmd = TIOCSTOP;
586 			break;
587 		case LINUX_TCOON:
588 			args->cmd = TIOCSTART;
589 			break;
590 		case LINUX_TCIOFF:
591 		case LINUX_TCION: {
592 			int c;
593 			struct write_args wr;
594 			error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, p);
595 			if (error)
596 				return (error);
597 			c = (args->arg == LINUX_TCIOFF) ? VSTOP : VSTART;
598 			c = bios.c_cc[c];
599 			if (c != _POSIX_VDISABLE) {
600 				wr.fd = args->fd;
601 				wr.buf = &c;
602 				wr.nbyte = sizeof(c);
603 				return (write(p, &wr));
604 			} else
605 				return (0);
606 		}
607 		default:
608 			return (EINVAL);
609 		}
610 		args->arg = 0;
611 		return (ioctl(p, (struct ioctl_args *)args));
612 	}
613 
614 	case LINUX_TCFLSH: {
615 		args->cmd = TIOCFLUSH;
616 		switch (args->arg) {
617 		case LINUX_TCIFLUSH:
618 			args->arg = FREAD;
619 			break;
620 		case LINUX_TCOFLUSH:
621 			args->arg = FWRITE;
622 			break;
623 		case LINUX_TCIOFLUSH:
624 			args->arg = FREAD | FWRITE;
625 			break;
626 		default:
627 			return (EINVAL);
628 		}
629 		return (ioctl(p, (struct ioctl_args *)args));
630 	}
631 
632 	case LINUX_TIOCEXCL:
633 		args->cmd = TIOCEXCL;
634 		return (ioctl(p, (struct ioctl_args *)args));
635 
636 	case LINUX_TIOCNXCL:
637 		args->cmd = TIOCNXCL;
638 		return (ioctl(p, (struct ioctl_args *)args));
639 
640 	/* LINUX_TIOCSCTTY */
641 
642 	case LINUX_TIOCGPGRP:
643 		args->cmd = TIOCGPGRP;
644 		return (ioctl(p, (struct ioctl_args *)args));
645 
646 	case LINUX_TIOCSPGRP:
647 		args->cmd = TIOCSPGRP;
648 		return (ioctl(p, (struct ioctl_args *)args));
649 
650 	/* LINUX_TIOCOUTQ */
651 	/* LINUX_TIOCSTI */
652 
653 	case LINUX_TIOCGWINSZ:
654 		args->cmd = TIOCGWINSZ;
655 		return (ioctl(p, (struct ioctl_args *)args));
656 
657 	case LINUX_TIOCSWINSZ:
658 		args->cmd = TIOCSWINSZ;
659 		return (ioctl(p, (struct ioctl_args *)args));
660 
661 	case LINUX_TIOCMGET:
662 		args->cmd = TIOCMGET;
663 		return (ioctl(p, (struct ioctl_args *)args));
664 
665 	case LINUX_TIOCMBIS:
666 		args->cmd = TIOCMBIS;
667 		return (ioctl(p, (struct ioctl_args *)args));
668 
669 	case LINUX_TIOCMBIC:
670 		args->cmd = TIOCMBIC;
671 		return (ioctl(p, (struct ioctl_args *)args));
672 
673 	case LINUX_TIOCMSET:
674 		args->cmd = TIOCMSET;
675 		return (ioctl(p, (struct ioctl_args *)args));
676 
677 	/* TIOCGSOFTCAR */
678 	/* TIOCSSOFTCAR */
679 
680 	case LINUX_FIONREAD: /* LINUX_TIOCINQ */
681 		args->cmd = FIONREAD;
682 		return (ioctl(p, (struct ioctl_args *)args));
683 
684 	/* LINUX_TIOCLINUX */
685 
686 	case LINUX_TIOCCONS:
687 		args->cmd = TIOCCONS;
688 		return (ioctl(p, (struct ioctl_args *)args));
689 
690 	case LINUX_TIOCGSERIAL: {
691 		struct linux_serial_struct lss;
692 		lss.type = LINUX_PORT_16550A;
693 		lss.flags = 0;
694 		lss.close_delay = 0;
695 		return copyout(&lss, (caddr_t)args->arg, sizeof(lss));
696 	}
697 
698 	case LINUX_TIOCSSERIAL: {
699 		struct linux_serial_struct lss;
700 		error = copyin((caddr_t)args->arg, &lss, sizeof(lss));
701 		if (error)
702 			return (error);
703 		/* XXX - It really helps to have an implementation that
704 		 * does nothing. NOT!
705 		 */
706 		return (0);
707 	}
708 
709 	/* LINUX_TIOCPKT */
710 
711 	case LINUX_FIONBIO:
712 		args->cmd = FIONBIO;
713 		return (ioctl(p, (struct ioctl_args *)args));
714 
715 	case LINUX_TIOCNOTTY:
716 		args->cmd = TIOCNOTTY;
717 		return (ioctl(p, (struct ioctl_args *)args));
718 
719 	case LINUX_TIOCSETD: {
720 		int line;
721 		switch (args->arg) {
722 		case LINUX_N_TTY:
723 			line = TTYDISC;
724 			break;
725 		case LINUX_N_SLIP:
726 			line = SLIPDISC;
727 			break;
728 		case LINUX_N_PPP:
729 			line = PPPDISC;
730 			break;
731 		default:
732 			return (EINVAL);
733 		}
734 		return (fo_ioctl(fp, TIOCSETD, (caddr_t)&line, p));
735 	}
736 
737 	case LINUX_TIOCGETD: {
738 		int linux_line;
739 		int bsd_line = TTYDISC;
740 		error = fo_ioctl(fp, TIOCGETD, (caddr_t)&bsd_line, p);
741 		if (error)
742 			return (error);
743 		switch (bsd_line) {
744 		case TTYDISC:
745 			linux_line = LINUX_N_TTY;
746 			break;
747 		case SLIPDISC:
748 			linux_line = LINUX_N_SLIP;
749 			break;
750 		case PPPDISC:
751 			linux_line = LINUX_N_PPP;
752 			break;
753 		default:
754 			return (EINVAL);
755 		}
756 		return (copyout(&linux_line, (caddr_t)args->arg, sizeof(int)));
757 	}
758 
759 	/* LINUX_TCSBRKP */
760 	/* LINUX_TIOCTTYGSTRUCT */
761 
762 	case LINUX_FIONCLEX:
763 		args->cmd = FIONCLEX;
764 		return (ioctl(p, (struct ioctl_args *)args));
765 
766 	case LINUX_FIOCLEX:
767 		args->cmd = FIOCLEX;
768 		return (ioctl(p, (struct ioctl_args *)args));
769 
770 	case LINUX_FIOASYNC:
771 		args->cmd = FIOASYNC;
772 		return (ioctl(p, (struct ioctl_args *)args));
773 
774 	/* LINUX_TIOCSERCONFIG */
775 	/* LINUX_TIOCSERGWILD */
776 	/* LINUX_TIOCSERSWILD */
777 	/* LINUX_TIOCGLCKTRMIOS */
778 	/* LINUX_TIOCSLCKTRMIOS */
779 
780 	}
781 
782 	return (ENOIOCTL);
783 }
784 
785 /*
786  * CDROM related ioctls
787  */
788 
789 struct linux_cdrom_msf
790 {
791 	u_char	cdmsf_min0;
792 	u_char	cdmsf_sec0;
793 	u_char	cdmsf_frame0;
794 	u_char	cdmsf_min1;
795 	u_char	cdmsf_sec1;
796 	u_char	cdmsf_frame1;
797 };
798 
799 struct linux_cdrom_tochdr
800 {
801 	u_char	cdth_trk0;
802 	u_char	cdth_trk1;
803 };
804 
805 union linux_cdrom_addr
806 {
807 	struct {
808 		u_char	minute;
809 		u_char	second;
810 		u_char	frame;
811 	} msf;
812 	int	lba;
813 };
814 
815 struct linux_cdrom_tocentry
816 {
817 	u_char	cdte_track;
818 	u_char	cdte_adr:4;
819 	u_char	cdte_ctrl:4;
820 	u_char	cdte_format;
821 	union linux_cdrom_addr cdte_addr;
822 	u_char	cdte_datamode;
823 };
824 
825 struct linux_cdrom_subchnl
826 {
827 	u_char	cdsc_format;
828 	u_char	cdsc_audiostatus;
829 	u_char	cdsc_adr:4;
830 	u_char	cdsc_ctrl:4;
831 	u_char	cdsc_trk;
832 	u_char	cdsc_ind;
833 	union linux_cdrom_addr cdsc_absaddr;
834 	union linux_cdrom_addr cdsc_reladdr;
835 };
836 
837 static void
838 bsd_to_linux_msf_lba(u_char af, union msf_lba *bp, union linux_cdrom_addr *lp)
839 {
840 	if (af == CD_LBA_FORMAT)
841 		lp->lba = bp->lba;
842 	else {
843 		lp->msf.minute = bp->msf.minute;
844 		lp->msf.second = bp->msf.second;
845 		lp->msf.frame = bp->msf.frame;
846 	}
847 }
848 
849 static void
850 set_linux_cdrom_addr(union linux_cdrom_addr *addr, int format, int lba)
851 {
852 	if (format == LINUX_CDROM_MSF) {
853 		addr->msf.frame = lba % 75;
854 		lba /= 75;
855 		lba += 2;
856 		addr->msf.second = lba % 60;
857 		addr->msf.minute = lba / 60;
858 	} else
859 		addr->lba = lba;
860 }
861 
862 static int
863 linux_ioctl_cdrom(struct proc *p, struct linux_ioctl_args *args)
864 {
865 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
866 	int error;
867 
868 	switch (args->cmd & 0xffff) {
869 
870 	case LINUX_CDROMPAUSE:
871 		args->cmd = CDIOCPAUSE;
872 		return (ioctl(p, (struct ioctl_args *)args));
873 
874 	case LINUX_CDROMRESUME:
875 		args->cmd = CDIOCRESUME;
876 		return (ioctl(p, (struct ioctl_args *)args));
877 
878 	case LINUX_CDROMPLAYMSF:
879 		args->cmd = CDIOCPLAYMSF;
880 		return (ioctl(p, (struct ioctl_args *)args));
881 
882 	case LINUX_CDROMPLAYTRKIND:
883 		args->cmd = CDIOCPLAYTRACKS;
884 		return (ioctl(p, (struct ioctl_args *)args));
885 
886 	case LINUX_CDROMREADTOCHDR: {
887 		struct ioc_toc_header th;
888 		struct linux_cdrom_tochdr lth;
889 		error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&th, p);
890 		if (!error) {
891 			lth.cdth_trk0 = th.starting_track;
892 			lth.cdth_trk1 = th.ending_track;
893 			copyout(&lth, (caddr_t)args->arg, sizeof(lth));
894 		}
895 		return (error);
896 	}
897 
898 	case LINUX_CDROMREADTOCENTRY: {
899 		struct linux_cdrom_tocentry lte, *ltep =
900 		    (struct linux_cdrom_tocentry *)args->arg;
901 		struct ioc_read_toc_single_entry irtse;
902 		irtse.address_format = ltep->cdte_format;
903 		irtse.track = ltep->cdte_track;
904 		error = fo_ioctl(fp, CDIOREADTOCENTRY, (caddr_t)&irtse, p);
905 		if (!error) {
906 			lte = *ltep;
907 			lte.cdte_ctrl = irtse.entry.control;
908 			lte.cdte_adr = irtse.entry.addr_type;
909 			bsd_to_linux_msf_lba(irtse.address_format,
910 			    &irtse.entry.addr, &lte.cdte_addr);
911 			copyout(&lte, (caddr_t)args->arg, sizeof(lte));
912 		}
913 		return (error);
914 	}
915 
916 	case LINUX_CDROMSTOP:
917 		args->cmd = CDIOCSTOP;
918 		return (ioctl(p, (struct ioctl_args *)args));
919 
920 	case LINUX_CDROMSTART:
921 		args->cmd = CDIOCSTART;
922 		return (ioctl(p, (struct ioctl_args *)args));
923 
924 	case LINUX_CDROMEJECT:
925 		args->cmd = CDIOCEJECT;
926 		return (ioctl(p, (struct ioctl_args *)args));
927 
928 	/* LINUX_CDROMVOLCTRL */
929 
930 	case LINUX_CDROMSUBCHNL: {
931 		struct linux_cdrom_subchnl sc;
932 		struct ioc_read_subchannel bsdsc;
933 		struct cd_sub_channel_info *bsdinfo;
934 		caddr_t sg = stackgap_init();
935 		bsdinfo = (struct cd_sub_channel_info*)stackgap_alloc(&sg,
936 		    sizeof(struct cd_sub_channel_info));
937 		bsdsc.address_format = CD_LBA_FORMAT;
938 		bsdsc.data_format = CD_CURRENT_POSITION;
939 		bsdsc.track = 0;
940 		bsdsc.data_len = sizeof(struct cd_sub_channel_info);
941 		bsdsc.data = bsdinfo;
942 		error = fo_ioctl(fp, CDIOCREADSUBCHANNEL, (caddr_t)&bsdsc, p);
943 		if (error)
944 			return (error);
945 		error = copyin((caddr_t)args->arg, &sc,
946 		    sizeof(struct linux_cdrom_subchnl));
947 		if (error)
948 			return (error);
949 		sc.cdsc_audiostatus = bsdinfo->header.audio_status;
950 		sc.cdsc_adr = bsdinfo->what.position.addr_type;
951 		sc.cdsc_ctrl = bsdinfo->what.position.control;
952 		sc.cdsc_trk = bsdinfo->what.position.track_number;
953 		sc.cdsc_ind = bsdinfo->what.position.index_number;
954 		set_linux_cdrom_addr(&sc.cdsc_absaddr, sc.cdsc_format,
955 		    bsdinfo->what.position.absaddr.lba);
956 		set_linux_cdrom_addr(&sc.cdsc_reladdr, sc.cdsc_format,
957 		    bsdinfo->what.position.reladdr.lba);
958 		error = copyout(&sc, (caddr_t)args->arg,
959 		    sizeof(struct linux_cdrom_subchnl));
960 		return (error);
961 	}
962 
963 	/* LINUX_CDROMREADMODE2 */
964 	/* LINUX_CDROMREADMODE1 */
965 	/* LINUX_CDROMREADAUDIO */
966 	/* LINUX_CDROMEJECT_SW */
967 	/* LINUX_CDROMMULTISESSION */
968 	/* LINUX_CDROM_GET_UPC */
969 
970 	case LINUX_CDROMRESET:
971 		args->cmd = CDIOCRESET;
972 		return (ioctl(p, (struct ioctl_args *)args));
973 
974 	/* LINUX_CDROMVOLREAD */
975 	/* LINUX_CDROMREADRAW */
976 	/* LINUX_CDROMREADCOOKED */
977 	/* LINUX_CDROMSEEK */
978 	/* LINUX_CDROMPLAYBLK */
979 	/* LINUX_CDROMREADALL */
980 	/* LINUX_CDROMCLOSETRAY */
981 	/* LINUX_CDROMLOADFROMSLOT */
982 
983 	}
984 
985 	return (ENOIOCTL);
986 }
987 
988 /*
989  * Sound related ioctls
990  */
991 
992 static u_int32_t dirbits[4] = { IOC_VOID, IOC_IN, IOC_OUT, IOC_INOUT };
993 
994 #define	SETDIR(c)	(((c) & ~IOC_DIRMASK) | dirbits[args->cmd >> 30])
995 
996 static int
997 linux_ioctl_sound(struct proc *p, struct linux_ioctl_args *args)
998 {
999 
1000 	switch (args->cmd & 0xffff) {
1001 
1002 	case LINUX_SOUND_MIXER_WRITE_VOLUME:
1003 		args->cmd = SETDIR(SOUND_MIXER_WRITE_VOLUME);
1004 		return (ioctl(p, (struct ioctl_args *)args));
1005 
1006 	case LINUX_SOUND_MIXER_WRITE_BASS:
1007 		args->cmd = SETDIR(SOUND_MIXER_WRITE_BASS);
1008 		return (ioctl(p, (struct ioctl_args *)args));
1009 
1010 	case LINUX_SOUND_MIXER_WRITE_TREBLE:
1011 		args->cmd = SETDIR(SOUND_MIXER_WRITE_TREBLE);
1012 		return (ioctl(p, (struct ioctl_args *)args));
1013 
1014 	case LINUX_SOUND_MIXER_WRITE_SYNTH:
1015 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SYNTH);
1016 		return (ioctl(p, (struct ioctl_args *)args));
1017 
1018 	case LINUX_SOUND_MIXER_WRITE_PCM:
1019 		args->cmd = SETDIR(SOUND_MIXER_WRITE_PCM);
1020 		return (ioctl(p, (struct ioctl_args *)args));
1021 
1022 	case LINUX_SOUND_MIXER_WRITE_SPEAKER:
1023 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SPEAKER);
1024 		return (ioctl(p, (struct ioctl_args *)args));
1025 
1026 	case LINUX_SOUND_MIXER_WRITE_LINE:
1027 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE);
1028 		return (ioctl(p, (struct ioctl_args *)args));
1029 
1030 	case LINUX_SOUND_MIXER_WRITE_MIC:
1031 		args->cmd = SETDIR(SOUND_MIXER_WRITE_MIC);
1032 		return (ioctl(p, (struct ioctl_args *)args));
1033 
1034 	case LINUX_SOUND_MIXER_WRITE_CD:
1035 		args->cmd = SETDIR(SOUND_MIXER_WRITE_CD);
1036 		return (ioctl(p, (struct ioctl_args *)args));
1037 
1038 	case LINUX_SOUND_MIXER_WRITE_IMIX:
1039 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IMIX);
1040 		return (ioctl(p, (struct ioctl_args *)args));
1041 
1042 	case LINUX_SOUND_MIXER_WRITE_ALTPCM:
1043 		args->cmd = SETDIR(SOUND_MIXER_WRITE_ALTPCM);
1044 		return (ioctl(p, (struct ioctl_args *)args));
1045 
1046 	case LINUX_SOUND_MIXER_WRITE_RECLEV:
1047 		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECLEV);
1048 		return (ioctl(p, (struct ioctl_args *)args));
1049 
1050 	case LINUX_SOUND_MIXER_WRITE_IGAIN:
1051 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IGAIN);
1052 		return (ioctl(p, (struct ioctl_args *)args));
1053 
1054 	case LINUX_SOUND_MIXER_WRITE_OGAIN:
1055 		args->cmd = SETDIR(SOUND_MIXER_WRITE_OGAIN);
1056 		return (ioctl(p, (struct ioctl_args *)args));
1057 
1058 	case LINUX_SOUND_MIXER_WRITE_LINE1:
1059 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE1);
1060 		return (ioctl(p, (struct ioctl_args *)args));
1061 
1062 	case LINUX_SOUND_MIXER_WRITE_LINE2:
1063 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE2);
1064 		return (ioctl(p, (struct ioctl_args *)args));
1065 
1066 	case LINUX_SOUND_MIXER_WRITE_LINE3:
1067 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE3);
1068 		return (ioctl(p, (struct ioctl_args *)args));
1069 
1070 	case LINUX_OSS_GETVERSION: {
1071 		int version = linux_get_oss_version(p);
1072 		return (copyout(&version, (caddr_t)args->arg, sizeof(int)));
1073 	}
1074 
1075 	case LINUX_SOUND_MIXER_READ_DEVMASK:
1076 		args->cmd = SOUND_MIXER_READ_DEVMASK;
1077 		return (ioctl(p, (struct ioctl_args *)args));
1078 
1079 	case LINUX_SNDCTL_DSP_RESET:
1080 		args->cmd = SNDCTL_DSP_RESET;
1081 		return (ioctl(p, (struct ioctl_args *)args));
1082 
1083 	case LINUX_SNDCTL_DSP_SYNC:
1084 		args->cmd = SNDCTL_DSP_SYNC;
1085 		return (ioctl(p, (struct ioctl_args *)args));
1086 
1087 	case LINUX_SNDCTL_DSP_SPEED:
1088 		args->cmd = SNDCTL_DSP_SPEED;
1089 		return (ioctl(p, (struct ioctl_args *)args));
1090 
1091 	case LINUX_SNDCTL_DSP_STEREO:
1092 		args->cmd = SNDCTL_DSP_STEREO;
1093 		return (ioctl(p, (struct ioctl_args *)args));
1094 
1095 	case LINUX_SNDCTL_DSP_GETBLKSIZE: /* LINUX_SNDCTL_DSP_SETBLKSIZE */
1096 		args->cmd = SNDCTL_DSP_GETBLKSIZE;
1097 		return (ioctl(p, (struct ioctl_args *)args));
1098 
1099 	case LINUX_SNDCTL_DSP_SETFMT:
1100 		args->cmd = SNDCTL_DSP_SETFMT;
1101 		return (ioctl(p, (struct ioctl_args *)args));
1102 
1103 	case LINUX_SOUND_PCM_WRITE_CHANNELS:
1104 		args->cmd = SOUND_PCM_WRITE_CHANNELS;
1105 		return (ioctl(p, (struct ioctl_args *)args));
1106 
1107 	case LINUX_SOUND_PCM_WRITE_FILTER:
1108 		args->cmd = SOUND_PCM_WRITE_FILTER;
1109 		return (ioctl(p, (struct ioctl_args *)args));
1110 
1111 	case LINUX_SNDCTL_DSP_POST:
1112 		args->cmd = SNDCTL_DSP_POST;
1113 		return (ioctl(p, (struct ioctl_args *)args));
1114 
1115 	case LINUX_SNDCTL_DSP_SUBDIVIDE:
1116 		args->cmd = SNDCTL_DSP_SUBDIVIDE;
1117 		return (ioctl(p, (struct ioctl_args *)args));
1118 
1119 	case LINUX_SNDCTL_DSP_SETFRAGMENT:
1120 		args->cmd = SNDCTL_DSP_SETFRAGMENT;
1121 		return (ioctl(p, (struct ioctl_args *)args));
1122 
1123 	case LINUX_SNDCTL_DSP_GETFMTS:
1124 		args->cmd = SNDCTL_DSP_GETFMTS;
1125 		return (ioctl(p, (struct ioctl_args *)args));
1126 
1127 	case LINUX_SNDCTL_DSP_GETOSPACE:
1128 		args->cmd = SNDCTL_DSP_GETOSPACE;
1129 		return (ioctl(p, (struct ioctl_args *)args));
1130 
1131 	case LINUX_SNDCTL_DSP_GETISPACE:
1132 		args->cmd = SNDCTL_DSP_GETISPACE;
1133 		return (ioctl(p, (struct ioctl_args *)args));
1134 
1135 	case LINUX_SNDCTL_DSP_NONBLOCK:
1136 		args->cmd = SNDCTL_DSP_NONBLOCK;
1137 		return (ioctl(p, (struct ioctl_args *)args));
1138 
1139 	case LINUX_SNDCTL_DSP_GETCAPS:
1140 		args->cmd = SNDCTL_DSP_GETCAPS;
1141 		return (ioctl(p, (struct ioctl_args *)args));
1142 
1143 	case LINUX_SNDCTL_DSP_SETTRIGGER: /* LINUX_SNDCTL_GETTRIGGER */
1144 		args->cmd = SNDCTL_DSP_SETTRIGGER;
1145 		return (ioctl(p, (struct ioctl_args *)args));
1146 
1147 	case LINUX_SNDCTL_DSP_GETIPTR:
1148 		args->cmd = SNDCTL_DSP_GETIPTR;
1149 		return (ioctl(p, (struct ioctl_args *)args));
1150 
1151 	case LINUX_SNDCTL_DSP_GETOPTR:
1152 		args->cmd = SNDCTL_DSP_GETOPTR;
1153 		return (ioctl(p, (struct ioctl_args *)args));
1154 
1155 	case LINUX_SNDCTL_DSP_GETODELAY:
1156 		args->cmd = SNDCTL_DSP_GETODELAY;
1157 		return (ioctl(p, (struct ioctl_args *)args));
1158 
1159 	case LINUX_SNDCTL_SEQ_RESET:
1160 		args->cmd = SNDCTL_SEQ_RESET;
1161 		return (ioctl(p, (struct ioctl_args *)args));
1162 
1163 	case LINUX_SNDCTL_SEQ_SYNC:
1164 		args->cmd = SNDCTL_SEQ_SYNC;
1165 		return (ioctl(p, (struct ioctl_args *)args));
1166 
1167 	case LINUX_SNDCTL_SYNTH_INFO:
1168 		args->cmd = SNDCTL_SYNTH_INFO;
1169 		return (ioctl(p, (struct ioctl_args *)args));
1170 
1171 	case LINUX_SNDCTL_SEQ_CTRLRATE:
1172 		args->cmd = SNDCTL_SEQ_CTRLRATE;
1173 		return (ioctl(p, (struct ioctl_args *)args));
1174 
1175 	case LINUX_SNDCTL_SEQ_GETOUTCOUNT:
1176 		args->cmd = SNDCTL_SEQ_GETOUTCOUNT;
1177 		return (ioctl(p, (struct ioctl_args *)args));
1178 
1179 	case LINUX_SNDCTL_SEQ_GETINCOUNT:
1180 		args->cmd = SNDCTL_SEQ_GETINCOUNT;
1181 		return (ioctl(p, (struct ioctl_args *)args));
1182 
1183 	case LINUX_SNDCTL_SEQ_PERCMODE:
1184 		args->cmd = SNDCTL_SEQ_PERCMODE;
1185 		return (ioctl(p, (struct ioctl_args *)args));
1186 
1187 	case LINUX_SNDCTL_FM_LOAD_INSTR:
1188 		args->cmd = SNDCTL_FM_LOAD_INSTR;
1189 		return (ioctl(p, (struct ioctl_args *)args));
1190 
1191 	case LINUX_SNDCTL_SEQ_TESTMIDI:
1192 		args->cmd = SNDCTL_SEQ_TESTMIDI;
1193 		return (ioctl(p, (struct ioctl_args *)args));
1194 
1195 	case LINUX_SNDCTL_SEQ_RESETSAMPLES:
1196 		args->cmd = SNDCTL_SEQ_RESETSAMPLES;
1197 		return (ioctl(p, (struct ioctl_args *)args));
1198 
1199 	case LINUX_SNDCTL_SEQ_NRSYNTHS:
1200 		args->cmd = SNDCTL_SEQ_NRSYNTHS;
1201 		return (ioctl(p, (struct ioctl_args *)args));
1202 
1203 	case LINUX_SNDCTL_SEQ_NRMIDIS:
1204 		args->cmd = SNDCTL_SEQ_NRMIDIS;
1205 		return (ioctl(p, (struct ioctl_args *)args));
1206 
1207 	case LINUX_SNDCTL_MIDI_INFO:
1208 		args->cmd = SNDCTL_MIDI_INFO;
1209 		return (ioctl(p, (struct ioctl_args *)args));
1210 
1211 	case LINUX_SNDCTL_SEQ_TRESHOLD:
1212 		args->cmd = SNDCTL_SEQ_TRESHOLD;
1213 		return (ioctl(p, (struct ioctl_args *)args));
1214 
1215 	case LINUX_SNDCTL_SYNTH_MEMAVL:
1216 		args->cmd = SNDCTL_SYNTH_MEMAVL;
1217 		return (ioctl(p, (struct ioctl_args *)args));
1218 
1219 	}
1220 
1221 	return (ENOIOCTL);
1222 }
1223 
1224 /*
1225  * Console related ioctls
1226  */
1227 
1228 #define ISSIGVALID(sig)		((sig) > 0 && (sig) < NSIG)
1229 
1230 static int
1231 linux_ioctl_console(struct proc *p, struct linux_ioctl_args *args)
1232 {
1233 	struct file *fp = p->p_fd->fd_ofiles[args->fd];
1234 
1235 	switch (args->cmd & 0xffff) {
1236 
1237 	case LINUX_KIOCSOUND:
1238 		args->cmd = KIOCSOUND;
1239 		return (ioctl(p, (struct ioctl_args *)args));
1240 
1241 	case LINUX_KDMKTONE:
1242 		args->cmd = KDMKTONE;
1243 		return (ioctl(p, (struct ioctl_args *)args));
1244 
1245 	case LINUX_KDGETLED:
1246 		args->cmd = KDGETLED;
1247 		return (ioctl(p, (struct ioctl_args *)args));
1248 
1249 	case LINUX_KDSETLED:
1250 		args->cmd = KDSETLED;
1251 		return (ioctl(p, (struct ioctl_args *)args));
1252 
1253 	case LINUX_KDSETMODE:
1254 		args->cmd = KDSETMODE;
1255 		return (ioctl(p, (struct ioctl_args *)args));
1256 
1257 	case LINUX_KDGETMODE:
1258 		args->cmd = KDGETMODE;
1259 		return (ioctl(p, (struct ioctl_args *)args));
1260 
1261 	case LINUX_KDGKBMODE:
1262 		args->cmd = KDGKBMODE;
1263 		return (ioctl(p, (struct ioctl_args *)args));
1264 
1265 	case LINUX_KDSKBMODE: {
1266 		int kbdmode;
1267 		switch (args->arg) {
1268 		case LINUX_KBD_RAW:
1269 			kbdmode = K_RAW;
1270 			break;
1271 		case LINUX_KBD_XLATE:
1272 			kbdmode = K_XLATE;
1273 			break;
1274 		case LINUX_KBD_MEDIUMRAW:
1275 			kbdmode = K_RAW;
1276 			break;
1277 		default:
1278 			return (EINVAL);
1279 		}
1280 		return (fo_ioctl(fp, KDSKBMODE, (caddr_t)&kbdmode, p));
1281 	}
1282 
1283 	case LINUX_VT_OPENQRY:
1284 		args->cmd = VT_OPENQRY;
1285 		return (ioctl(p, (struct ioctl_args *)args));
1286 
1287 	case LINUX_VT_GETMODE:
1288 		args->cmd = VT_GETMODE;
1289 		return  (ioctl(p, (struct ioctl_args *)args));
1290 
1291 	case LINUX_VT_SETMODE: {
1292 		struct vt_mode *mode;
1293 		args->cmd = VT_SETMODE;
1294 		mode = (struct vt_mode *)args->arg;
1295 		if (!ISSIGVALID(mode->frsig) && ISSIGVALID(mode->acqsig))
1296 			mode->frsig = mode->acqsig;
1297 		return (ioctl(p, (struct ioctl_args *)args));
1298 	}
1299 
1300 	case LINUX_VT_GETSTATE:
1301 		args->cmd = VT_GETACTIVE;
1302 		return (ioctl(p, (struct ioctl_args *)args));
1303 
1304 	case LINUX_VT_RELDISP:
1305 		args->cmd = VT_RELDISP;
1306 		return (ioctl(p, (struct ioctl_args *)args));
1307 
1308 	case LINUX_VT_ACTIVATE:
1309 		args->cmd = VT_ACTIVATE;
1310 		return (ioctl(p, (struct ioctl_args *)args));
1311 
1312 	case LINUX_VT_WAITACTIVE:
1313 		args->cmd = VT_WAITACTIVE;
1314 		return (ioctl(p, (struct ioctl_args *)args));
1315 
1316 	}
1317 
1318 	return (ENOIOCTL);
1319 }
1320 
1321 /*
1322  * Socket related ioctls
1323  */
1324 
1325 static int
1326 linux_ioctl_socket(struct proc *p, struct linux_ioctl_args *args)
1327 {
1328 
1329 	switch (args->cmd & 0xffff) {
1330 
1331 	case LINUX_FIOSETOWN:
1332 		args->cmd = FIOSETOWN;
1333 		return (ioctl(p, (struct ioctl_args *)args));
1334 
1335 	case LINUX_SIOCSPGRP:
1336 		args->cmd = SIOCSPGRP;
1337 		return (ioctl(p, (struct ioctl_args *)args));
1338 
1339 	case LINUX_FIOGETOWN:
1340 		args->cmd = FIOGETOWN;
1341 		return (ioctl(p, (struct ioctl_args *)args));
1342 
1343 	case LINUX_SIOCGPGRP:
1344 		args->cmd = SIOCGPGRP;
1345 		return (ioctl(p, (struct ioctl_args *)args));
1346 
1347 	case LINUX_SIOCATMARK:
1348 		args->cmd = SIOCATMARK;
1349 		return (ioctl(p, (struct ioctl_args *)args));
1350 
1351 	/* LINUX_SIOCGSTAMP */
1352 
1353 	case LINUX_SIOCGIFCONF:
1354 		args->cmd = OSIOCGIFCONF;
1355 		return (ioctl(p, (struct ioctl_args *)args));
1356 
1357 	case LINUX_SIOCGIFFLAGS:
1358 		args->cmd = SIOCGIFFLAGS;
1359 		return (ioctl(p, (struct ioctl_args *)args));
1360 
1361 	case LINUX_SIOCGIFADDR:
1362 		args->cmd = OSIOCGIFADDR;
1363 		return (ioctl(p, (struct ioctl_args *)args));
1364 
1365 	case LINUX_SIOCGIFDSTADDR:
1366 		args->cmd = OSIOCGIFDSTADDR;
1367 		return (ioctl(p, (struct ioctl_args *)args));
1368 
1369 	case LINUX_SIOCGIFBRDADDR:
1370 		args->cmd = OSIOCGIFBRDADDR;
1371 		return (ioctl(p, (struct ioctl_args *)args));
1372 
1373 	case LINUX_SIOCGIFNETMASK:
1374 		args->cmd = OSIOCGIFNETMASK;
1375 		return (ioctl(p, (struct ioctl_args *)args));
1376 
1377 	case LINUX_SIOCGIFHWADDR: {
1378 		int ifn;
1379 		struct ifnet *ifp;
1380 		struct ifaddr *ifa;
1381 		struct sockaddr_dl *sdl;
1382 		struct linux_ifreq *ifr = (struct linux_ifreq *)args->arg;
1383 
1384 		/* Note that we don't actually respect the name in the ifreq
1385 		 * structure, as Linux interface names are all different.
1386 		 */
1387 		for (ifn = 0; ifn < if_index; ifn++) {
1388 			ifp = ifnet_addrs[ifn]->ifa_ifp;
1389 			if (ifp->if_type == IFT_ETHER) {
1390 				ifa = TAILQ_FIRST(&ifp->if_addrhead);
1391 				while (ifa) {
1392 					sdl=(struct sockaddr_dl*)ifa->ifa_addr;
1393 					if (sdl != NULL &&
1394 					    (sdl->sdl_family == AF_LINK) &&
1395 					    (sdl->sdl_type == IFT_ETHER)) {
1396 						return (copyout(LLADDR(sdl),
1397 						    &ifr->ifr_hwaddr.sa_data,
1398 						    LINUX_IFHWADDRLEN));
1399 					}
1400 					ifa = TAILQ_NEXT(ifa, ifa_link);
1401 				}
1402 			}
1403 		}
1404 		return (ENOENT);
1405 	}
1406 
1407 	case LINUX_SIOCADDMULTI:
1408 		args->cmd = SIOCADDMULTI;
1409 		return (ioctl(p, (struct ioctl_args *)args));
1410 
1411 	case LINUX_SIOCDELMULTI:
1412 		args->cmd = SIOCDELMULTI;
1413 		return (ioctl(p, (struct ioctl_args *)args));
1414 
1415 	}
1416 
1417 	return (ENOIOCTL);
1418 }
1419 
1420 /*
1421  * main ioctl syscall function
1422  */
1423 
1424 int
1425 linux_ioctl(struct proc *p, struct linux_ioctl_args *args)
1426 {
1427 	struct filedesc *fdp = p->p_fd;
1428 	struct file *fp;
1429 	struct handler_element *he;
1430 	int error, cmd;
1431 
1432 #ifdef DEBUG
1433 	if (ldebug(ioctl))
1434 		printf(ARGS(ioctl, "%d, %04lx, *"), args->fd, args->cmd);
1435 #endif
1436 
1437 	if ((unsigned)args->fd >= fdp->fd_nfiles)
1438 		return (EBADF);
1439 
1440 	fp = fdp->fd_ofiles[args->fd];
1441 	if (fp == NULL || (fp->f_flag & (FREAD|FWRITE)) == 0)
1442 		return (EBADF);
1443 
1444 	/* Iterate over the ioctl handlers */
1445 	cmd = args->cmd & 0xffff;
1446 	TAILQ_FOREACH(he, &handlers, list) {
1447 		if (cmd >= he->low && cmd <= he->high) {
1448 			error = (*he->func)(p, args);
1449 			if (error != ENOIOCTL)
1450 				return (error);
1451 		}
1452 	}
1453 
1454 	printf("linux: 'ioctl' fd=%d, cmd=0x%x ('%c',%d) not implemented\n",
1455 	    args->fd, (int)(args->cmd & 0xffff),
1456 	    (int)(args->cmd & 0xff00) >> 8, (int)(args->cmd & 0xff));
1457 
1458 	return (EINVAL);
1459 }
1460 
1461 int
1462 linux_ioctl_register_handler(struct linux_ioctl_handler *h)
1463 {
1464 	struct handler_element *he, *cur;
1465 
1466 	if (h == NULL || h->func == NULL)
1467 		return (EINVAL);
1468 
1469 	/*
1470 	 * Reuse the element if the handler is already on the list, otherwise
1471 	 * create a new element.
1472 	 */
1473 	TAILQ_FOREACH(he, &handlers, list) {
1474 		if (he->func == h->func)
1475 			break;
1476 	}
1477 	if (he == NULL) {
1478 		MALLOC(he, struct handler_element *, sizeof(*he),
1479 		    M_LINUX, M_WAITOK);
1480 		he->func = h->func;
1481 	} else
1482 		TAILQ_REMOVE(&handlers, he, list);
1483 
1484 	/* Initialize range information. */
1485 	he->low = h->low;
1486 	he->high = h->high;
1487 	he->span = h->high - h->low + 1;
1488 
1489 	/* Add the element to the list, sorted on span. */
1490 	TAILQ_FOREACH(cur, &handlers, list) {
1491 		if (cur->span > he->span) {
1492 			TAILQ_INSERT_BEFORE(cur, he, list);
1493 			return (0);
1494 		}
1495 	}
1496 	TAILQ_INSERT_TAIL(&handlers, he, list);
1497 
1498 	return (0);
1499 }
1500 
1501 int
1502 linux_ioctl_unregister_handler(struct linux_ioctl_handler *h)
1503 {
1504 	struct handler_element *he;
1505 
1506 	if (h == NULL || h->func == NULL)
1507 		return (EINVAL);
1508 
1509 	TAILQ_FOREACH(he, &handlers, list) {
1510 		if (he->func == h->func) {
1511 			TAILQ_REMOVE(&handlers, he, list);
1512 			FREE(he, M_LINUX);
1513 			return (0);
1514 		}
1515 	}
1516 
1517 	return (EINVAL);
1518 }
1519