xref: /freebsd/sys/compat/linux/linux_ioctl.c (revision 224af215a6fe8d5e5e2c91cc97c48bdd67c991c7)
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 without 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/cdio.h>
35 #include <sys/dvdio.h>
36 #include <sys/consio.h>
37 #include <sys/ctype.h>
38 #include <sys/disklabel.h>
39 #include <sys/fcntl.h>
40 #include <sys/file.h>
41 #include <sys/filedesc.h>
42 #include <sys/filio.h>
43 #include <sys/kbio.h>
44 #include <sys/linker_set.h>
45 #include <sys/malloc.h>
46 #include <sys/proc.h>
47 #include <sys/socket.h>
48 #include <sys/sockio.h>
49 #include <sys/soundcard.h>
50 #include <sys/tty.h>
51 #include <sys/uio.h>
52 #include <net/if.h>
53 #include <net/if_dl.h>
54 #include <net/if_types.h>
55 
56 #include <machine/../linux/linux.h>
57 #include <machine/../linux/linux_proto.h>
58 
59 #include <compat/linux/linux_ioctl.h>
60 #include <compat/linux/linux_mib.h>
61 #include <compat/linux/linux_util.h>
62 
63 static linux_ioctl_function_t linux_ioctl_cdrom;
64 static linux_ioctl_function_t linux_ioctl_console;
65 static linux_ioctl_function_t linux_ioctl_disk;
66 static linux_ioctl_function_t linux_ioctl_socket;
67 static linux_ioctl_function_t linux_ioctl_sound;
68 static linux_ioctl_function_t linux_ioctl_termio;
69 static linux_ioctl_function_t linux_ioctl_private;
70 static linux_ioctl_function_t linux_ioctl_special;
71 
72 static struct linux_ioctl_handler cdrom_handler =
73 { linux_ioctl_cdrom, LINUX_IOCTL_CDROM_MIN, LINUX_IOCTL_CDROM_MAX };
74 static struct linux_ioctl_handler console_handler =
75 { linux_ioctl_console, LINUX_IOCTL_CONSOLE_MIN, LINUX_IOCTL_CONSOLE_MAX };
76 static struct linux_ioctl_handler disk_handler =
77 { linux_ioctl_disk, LINUX_IOCTL_DISK_MIN, LINUX_IOCTL_DISK_MAX };
78 static struct linux_ioctl_handler socket_handler =
79 { linux_ioctl_socket, LINUX_IOCTL_SOCKET_MIN, LINUX_IOCTL_SOCKET_MAX };
80 static struct linux_ioctl_handler sound_handler =
81 { linux_ioctl_sound, LINUX_IOCTL_SOUND_MIN, LINUX_IOCTL_SOUND_MAX };
82 static struct linux_ioctl_handler termio_handler =
83 { linux_ioctl_termio, LINUX_IOCTL_TERMIO_MIN, LINUX_IOCTL_TERMIO_MAX };
84 static struct linux_ioctl_handler private_handler =
85 { linux_ioctl_private, LINUX_IOCTL_PRIVATE_MIN, LINUX_IOCTL_PRIVATE_MAX };
86 
87 DATA_SET(linux_ioctl_handler_set, cdrom_handler);
88 DATA_SET(linux_ioctl_handler_set, console_handler);
89 DATA_SET(linux_ioctl_handler_set, disk_handler);
90 DATA_SET(linux_ioctl_handler_set, socket_handler);
91 DATA_SET(linux_ioctl_handler_set, sound_handler);
92 DATA_SET(linux_ioctl_handler_set, termio_handler);
93 DATA_SET(linux_ioctl_handler_set, private_handler);
94 
95 struct handler_element
96 {
97 	TAILQ_ENTRY(handler_element) list;
98 	int	(*func)(struct thread *, struct linux_ioctl_args *);
99 	int	low, high, span;
100 };
101 
102 static TAILQ_HEAD(, handler_element) handlers =
103 	TAILQ_HEAD_INITIALIZER(handlers);
104 
105 static int
106 linux_ioctl_disk(struct thread *td, struct linux_ioctl_args *args)
107 {
108 	struct file *fp;
109 	int error;
110 	struct disklabel dl;
111 
112 	if ((error = fget(td, args->fd, &fp)) != 0)
113 		return (error);
114 	switch (args->cmd & 0xffff) {
115 	case LINUX_BLKGETSIZE:
116 		/* XXX: wrong, should use DIOCGMEDIASIZE/DIOCGSECTORSIZE */
117 		error = fo_ioctl(fp, DIOCGDINFO, (caddr_t)&dl, td->td_ucred,
118 		    td);
119 		fdrop(fp, td);
120 		if (error)
121 			return (error);
122 		return (copyout(&(dl.d_secperunit), (caddr_t)args->arg,
123 		     sizeof(dl.d_secperunit)));
124 	}
125 	fdrop(fp, td);
126 	return (ENOIOCTL);
127 }
128 
129 /*
130  * termio related ioctls
131  */
132 
133 struct linux_termio {
134 	unsigned short c_iflag;
135 	unsigned short c_oflag;
136 	unsigned short c_cflag;
137 	unsigned short c_lflag;
138 	unsigned char c_line;
139 	unsigned char c_cc[LINUX_NCC];
140 };
141 
142 struct linux_termios {
143 	unsigned int c_iflag;
144 	unsigned int c_oflag;
145 	unsigned int c_cflag;
146 	unsigned int c_lflag;
147 #ifdef __alpha__
148 	unsigned char c_cc[LINUX_NCCS];
149 	unsigned char c_line;
150 	unsigned int  c_ispeed;
151 	unsigned int  c_ospeed;
152 #else
153 	unsigned char c_line;
154 	unsigned char c_cc[LINUX_NCCS];
155 #endif
156 };
157 
158 struct linux_winsize {
159 	unsigned short ws_row, ws_col;
160 	unsigned short ws_xpixel, ws_ypixel;
161 };
162 
163 static struct speedtab sptab[] = {
164 	{ B0, LINUX_B0 }, { B50, LINUX_B50 },
165 	{ B75, LINUX_B75 }, { B110, LINUX_B110 },
166 	{ B134, LINUX_B134 }, { B150, LINUX_B150 },
167 	{ B200, LINUX_B200 }, { B300, LINUX_B300 },
168 	{ B600, LINUX_B600 }, { B1200, LINUX_B1200 },
169 	{ B1800, LINUX_B1800 }, { B2400, LINUX_B2400 },
170 	{ B4800, LINUX_B4800 }, { B9600, LINUX_B9600 },
171 	{ B19200, LINUX_B19200 }, { B38400, LINUX_B38400 },
172 	{ B57600, LINUX_B57600 }, { B115200, LINUX_B115200 },
173 	{-1, -1 }
174 };
175 
176 struct linux_serial_struct {
177 	int	type;
178 	int	line;
179 	int	port;
180 	int	irq;
181 	int	flags;
182 	int	xmit_fifo_size;
183 	int	custom_divisor;
184 	int	baud_base;
185 	unsigned short close_delay;
186 	char	reserved_char[2];
187 	int	hub6;
188 	unsigned short closing_wait;
189 	unsigned short closing_wait2;
190 	int	reserved[4];
191 };
192 
193 static int
194 linux_to_bsd_speed(int code, struct speedtab *table)
195 {
196 	for ( ; table->sp_code != -1; table++)
197 		if (table->sp_code == code)
198 			return (table->sp_speed);
199 	return -1;
200 }
201 
202 static int
203 bsd_to_linux_speed(int speed, struct speedtab *table)
204 {
205 	for ( ; table->sp_speed != -1; table++)
206 		if (table->sp_speed == speed)
207 			return (table->sp_code);
208 	return -1;
209 }
210 
211 static void
212 bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
213 {
214 	int i;
215 
216 #ifdef DEBUG
217 	if (ldebug(ioctl)) {
218 		printf("LINUX: BSD termios structure (input):\n");
219 		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
220 		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
221 		    bios->c_ispeed, bios->c_ospeed);
222 		printf("c_cc ");
223 		for (i=0; i<NCCS; i++)
224 			printf("%02x ", bios->c_cc[i]);
225 		printf("\n");
226 	}
227 #endif
228 
229 	lios->c_iflag = 0;
230 	if (bios->c_iflag & IGNBRK)
231 		lios->c_iflag |= LINUX_IGNBRK;
232 	if (bios->c_iflag & BRKINT)
233 		lios->c_iflag |= LINUX_BRKINT;
234 	if (bios->c_iflag & IGNPAR)
235 		lios->c_iflag |= LINUX_IGNPAR;
236 	if (bios->c_iflag & PARMRK)
237 		lios->c_iflag |= LINUX_PARMRK;
238 	if (bios->c_iflag & INPCK)
239 		lios->c_iflag |= LINUX_INPCK;
240 	if (bios->c_iflag & ISTRIP)
241 		lios->c_iflag |= LINUX_ISTRIP;
242 	if (bios->c_iflag & INLCR)
243 		lios->c_iflag |= LINUX_INLCR;
244 	if (bios->c_iflag & IGNCR)
245 		lios->c_iflag |= LINUX_IGNCR;
246 	if (bios->c_iflag & ICRNL)
247 		lios->c_iflag |= LINUX_ICRNL;
248 	if (bios->c_iflag & IXON)
249 		lios->c_iflag |= LINUX_IXON;
250 	if (bios->c_iflag & IXANY)
251 		lios->c_iflag |= LINUX_IXANY;
252 	if (bios->c_iflag & IXOFF)
253 		lios->c_iflag |= LINUX_IXOFF;
254 	if (bios->c_iflag & IMAXBEL)
255 		lios->c_iflag |= LINUX_IMAXBEL;
256 
257 	lios->c_oflag = 0;
258 	if (bios->c_oflag & OPOST)
259 		lios->c_oflag |= LINUX_OPOST;
260 	if (bios->c_oflag & ONLCR)
261 		lios->c_oflag |= LINUX_ONLCR;
262 	if (bios->c_oflag & OXTABS)
263 		lios->c_oflag |= LINUX_XTABS;
264 
265 	lios->c_cflag = bsd_to_linux_speed(bios->c_ispeed, sptab);
266 	lios->c_cflag |= (bios->c_cflag & CSIZE) >> 4;
267 	if (bios->c_cflag & CSTOPB)
268 		lios->c_cflag |= LINUX_CSTOPB;
269 	if (bios->c_cflag & CREAD)
270 		lios->c_cflag |= LINUX_CREAD;
271 	if (bios->c_cflag & PARENB)
272 		lios->c_cflag |= LINUX_PARENB;
273 	if (bios->c_cflag & PARODD)
274 		lios->c_cflag |= LINUX_PARODD;
275 	if (bios->c_cflag & HUPCL)
276 		lios->c_cflag |= LINUX_HUPCL;
277 	if (bios->c_cflag & CLOCAL)
278 		lios->c_cflag |= LINUX_CLOCAL;
279 	if (bios->c_cflag & CRTSCTS)
280 		lios->c_cflag |= LINUX_CRTSCTS;
281 
282 	lios->c_lflag = 0;
283 	if (bios->c_lflag & ISIG)
284 		lios->c_lflag |= LINUX_ISIG;
285 	if (bios->c_lflag & ICANON)
286 		lios->c_lflag |= LINUX_ICANON;
287 	if (bios->c_lflag & ECHO)
288 		lios->c_lflag |= LINUX_ECHO;
289 	if (bios->c_lflag & ECHOE)
290 		lios->c_lflag |= LINUX_ECHOE;
291 	if (bios->c_lflag & ECHOK)
292 		lios->c_lflag |= LINUX_ECHOK;
293 	if (bios->c_lflag & ECHONL)
294 		lios->c_lflag |= LINUX_ECHONL;
295 	if (bios->c_lflag & NOFLSH)
296 		lios->c_lflag |= LINUX_NOFLSH;
297 	if (bios->c_lflag & TOSTOP)
298 		lios->c_lflag |= LINUX_TOSTOP;
299 	if (bios->c_lflag & ECHOCTL)
300 		lios->c_lflag |= LINUX_ECHOCTL;
301 	if (bios->c_lflag & ECHOPRT)
302 		lios->c_lflag |= LINUX_ECHOPRT;
303 	if (bios->c_lflag & ECHOKE)
304 		lios->c_lflag |= LINUX_ECHOKE;
305 	if (bios->c_lflag & FLUSHO)
306 		lios->c_lflag |= LINUX_FLUSHO;
307 	if (bios->c_lflag & PENDIN)
308 		lios->c_lflag |= LINUX_PENDIN;
309 	if (bios->c_lflag & IEXTEN)
310 		lios->c_lflag |= LINUX_IEXTEN;
311 
312 	for (i=0; i<LINUX_NCCS; i++)
313 		lios->c_cc[i] = LINUX_POSIX_VDISABLE;
314 	lios->c_cc[LINUX_VINTR] = bios->c_cc[VINTR];
315 	lios->c_cc[LINUX_VQUIT] = bios->c_cc[VQUIT];
316 	lios->c_cc[LINUX_VERASE] = bios->c_cc[VERASE];
317 	lios->c_cc[LINUX_VKILL] = bios->c_cc[VKILL];
318 	lios->c_cc[LINUX_VEOF] = bios->c_cc[VEOF];
319 	lios->c_cc[LINUX_VEOL] = bios->c_cc[VEOL];
320 	lios->c_cc[LINUX_VMIN] = bios->c_cc[VMIN];
321 	lios->c_cc[LINUX_VTIME] = bios->c_cc[VTIME];
322 	lios->c_cc[LINUX_VEOL2] = bios->c_cc[VEOL2];
323 	lios->c_cc[LINUX_VSUSP] = bios->c_cc[VSUSP];
324 	lios->c_cc[LINUX_VSTART] = bios->c_cc[VSTART];
325 	lios->c_cc[LINUX_VSTOP] = bios->c_cc[VSTOP];
326 	lios->c_cc[LINUX_VREPRINT] = bios->c_cc[VREPRINT];
327 	lios->c_cc[LINUX_VDISCARD] = bios->c_cc[VDISCARD];
328 	lios->c_cc[LINUX_VWERASE] = bios->c_cc[VWERASE];
329 	lios->c_cc[LINUX_VLNEXT] = bios->c_cc[VLNEXT];
330 
331 	for (i=0; i<LINUX_NCCS; i++) {
332 		if (lios->c_cc[i] == _POSIX_VDISABLE)
333 			lios->c_cc[i] = LINUX_POSIX_VDISABLE;
334 	}
335 	lios->c_line = 0;
336 
337 #ifdef DEBUG
338 	if (ldebug(ioctl)) {
339 		printf("LINUX: LINUX termios structure (output):\n");
340 		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
341 		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
342 		    lios->c_lflag, (int)lios->c_line);
343 		printf("c_cc ");
344 		for (i=0; i<LINUX_NCCS; i++)
345 			printf("%02x ", lios->c_cc[i]);
346 		printf("\n");
347 	}
348 #endif
349 }
350 
351 static void
352 linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
353 {
354 	int i;
355 
356 #ifdef DEBUG
357 	if (ldebug(ioctl)) {
358 		printf("LINUX: LINUX termios structure (input):\n");
359 		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
360 		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
361 		    lios->c_lflag, (int)lios->c_line);
362 		printf("c_cc ");
363 		for (i=0; i<LINUX_NCCS; i++)
364 			printf("%02x ", lios->c_cc[i]);
365 		printf("\n");
366 	}
367 #endif
368 
369 	bios->c_iflag = 0;
370 	if (lios->c_iflag & LINUX_IGNBRK)
371 		bios->c_iflag |= IGNBRK;
372 	if (lios->c_iflag & LINUX_BRKINT)
373 		bios->c_iflag |= BRKINT;
374 	if (lios->c_iflag & LINUX_IGNPAR)
375 		bios->c_iflag |= IGNPAR;
376 	if (lios->c_iflag & LINUX_PARMRK)
377 		bios->c_iflag |= PARMRK;
378 	if (lios->c_iflag & LINUX_INPCK)
379 		bios->c_iflag |= INPCK;
380 	if (lios->c_iflag & LINUX_ISTRIP)
381 		bios->c_iflag |= ISTRIP;
382 	if (lios->c_iflag & LINUX_INLCR)
383 		bios->c_iflag |= INLCR;
384 	if (lios->c_iflag & LINUX_IGNCR)
385 		bios->c_iflag |= IGNCR;
386 	if (lios->c_iflag & LINUX_ICRNL)
387 		bios->c_iflag |= ICRNL;
388 	if (lios->c_iflag & LINUX_IXON)
389 		bios->c_iflag |= IXON;
390 	if (lios->c_iflag & LINUX_IXANY)
391 		bios->c_iflag |= IXANY;
392 	if (lios->c_iflag & LINUX_IXOFF)
393 		bios->c_iflag |= IXOFF;
394 	if (lios->c_iflag & LINUX_IMAXBEL)
395 		bios->c_iflag |= IMAXBEL;
396 
397 	bios->c_oflag = 0;
398 	if (lios->c_oflag & LINUX_OPOST)
399 		bios->c_oflag |= OPOST;
400 	if (lios->c_oflag & LINUX_ONLCR)
401 		bios->c_oflag |= ONLCR;
402 	if (lios->c_oflag & LINUX_XTABS)
403 		bios->c_oflag |= OXTABS;
404 
405 	bios->c_cflag = (lios->c_cflag & LINUX_CSIZE) << 4;
406 	if (lios->c_cflag & LINUX_CSTOPB)
407 		bios->c_cflag |= CSTOPB;
408 	if (lios->c_cflag & LINUX_CREAD)
409 		bios->c_cflag |= CREAD;
410 	if (lios->c_cflag & LINUX_PARENB)
411 		bios->c_cflag |= PARENB;
412 	if (lios->c_cflag & LINUX_PARODD)
413 		bios->c_cflag |= PARODD;
414 	if (lios->c_cflag & LINUX_HUPCL)
415 		bios->c_cflag |= HUPCL;
416 	if (lios->c_cflag & LINUX_CLOCAL)
417 		bios->c_cflag |= CLOCAL;
418 	if (lios->c_cflag & LINUX_CRTSCTS)
419 		bios->c_cflag |= CRTSCTS;
420 
421 	bios->c_lflag = 0;
422 	if (lios->c_lflag & LINUX_ISIG)
423 		bios->c_lflag |= ISIG;
424 	if (lios->c_lflag & LINUX_ICANON)
425 		bios->c_lflag |= ICANON;
426 	if (lios->c_lflag & LINUX_ECHO)
427 		bios->c_lflag |= ECHO;
428 	if (lios->c_lflag & LINUX_ECHOE)
429 		bios->c_lflag |= ECHOE;
430 	if (lios->c_lflag & LINUX_ECHOK)
431 		bios->c_lflag |= ECHOK;
432 	if (lios->c_lflag & LINUX_ECHONL)
433 		bios->c_lflag |= ECHONL;
434 	if (lios->c_lflag & LINUX_NOFLSH)
435 		bios->c_lflag |= NOFLSH;
436 	if (lios->c_lflag & LINUX_TOSTOP)
437 		bios->c_lflag |= TOSTOP;
438 	if (lios->c_lflag & LINUX_ECHOCTL)
439 		bios->c_lflag |= ECHOCTL;
440 	if (lios->c_lflag & LINUX_ECHOPRT)
441 		bios->c_lflag |= ECHOPRT;
442 	if (lios->c_lflag & LINUX_ECHOKE)
443 		bios->c_lflag |= ECHOKE;
444 	if (lios->c_lflag & LINUX_FLUSHO)
445 		bios->c_lflag |= FLUSHO;
446 	if (lios->c_lflag & LINUX_PENDIN)
447 		bios->c_lflag |= PENDIN;
448 	if (lios->c_lflag & LINUX_IEXTEN)
449 		bios->c_lflag |= IEXTEN;
450 
451 	for (i=0; i<NCCS; i++)
452 		bios->c_cc[i] = _POSIX_VDISABLE;
453 	bios->c_cc[VINTR] = lios->c_cc[LINUX_VINTR];
454 	bios->c_cc[VQUIT] = lios->c_cc[LINUX_VQUIT];
455 	bios->c_cc[VERASE] = lios->c_cc[LINUX_VERASE];
456 	bios->c_cc[VKILL] = lios->c_cc[LINUX_VKILL];
457 	bios->c_cc[VEOF] = lios->c_cc[LINUX_VEOF];
458 	bios->c_cc[VEOL] = lios->c_cc[LINUX_VEOL];
459 	bios->c_cc[VMIN] = lios->c_cc[LINUX_VMIN];
460 	bios->c_cc[VTIME] = lios->c_cc[LINUX_VTIME];
461 	bios->c_cc[VEOL2] = lios->c_cc[LINUX_VEOL2];
462 	bios->c_cc[VSUSP] = lios->c_cc[LINUX_VSUSP];
463 	bios->c_cc[VSTART] = lios->c_cc[LINUX_VSTART];
464 	bios->c_cc[VSTOP] = lios->c_cc[LINUX_VSTOP];
465 	bios->c_cc[VREPRINT] = lios->c_cc[LINUX_VREPRINT];
466 	bios->c_cc[VDISCARD] = lios->c_cc[LINUX_VDISCARD];
467 	bios->c_cc[VWERASE] = lios->c_cc[LINUX_VWERASE];
468 	bios->c_cc[VLNEXT] = lios->c_cc[LINUX_VLNEXT];
469 
470 	for (i=0; i<NCCS; i++) {
471 		if (bios->c_cc[i] == LINUX_POSIX_VDISABLE)
472 			bios->c_cc[i] = _POSIX_VDISABLE;
473 	}
474 
475 	bios->c_ispeed = bios->c_ospeed =
476 	    linux_to_bsd_speed(lios->c_cflag & LINUX_CBAUD, sptab);
477 
478 #ifdef DEBUG
479 	if (ldebug(ioctl)) {
480 		printf("LINUX: BSD termios structure (output):\n");
481 		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
482 		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
483 		    bios->c_ispeed, bios->c_ospeed);
484 		printf("c_cc ");
485 		for (i=0; i<NCCS; i++)
486 			printf("%02x ", bios->c_cc[i]);
487 		printf("\n");
488 	}
489 #endif
490 }
491 
492 static void
493 bsd_to_linux_termio(struct termios *bios, struct linux_termio *lio)
494 {
495 	struct linux_termios lios;
496 
497 	bsd_to_linux_termios(bios, &lios);
498 	lio->c_iflag = lios.c_iflag;
499 	lio->c_oflag = lios.c_oflag;
500 	lio->c_cflag = lios.c_cflag;
501 	lio->c_lflag = lios.c_lflag;
502 	lio->c_line  = lios.c_line;
503 #ifdef __alpha__
504 	lio->c_cc[LINUX__VINTR] = lios.c_cc[LINUX_VINTR];
505 	lio->c_cc[LINUX__VQUIT] = lios.c_cc[LINUX_VQUIT];
506 	lio->c_cc[LINUX__VERASE] = lios.c_cc[LINUX_VERASE];
507 	lio->c_cc[LINUX__VKILL] = lios.c_cc[LINUX_VKILL];
508 	lio->c_cc[LINUX__VEOF] =
509 	    lios.c_cc[(lios.c_lflag & ICANON) ? LINUX_VEOF : LINUX_VMIN];
510 	lio->c_cc[LINUX__VEOL] =
511 	    lios.c_cc[(lios.c_lflag & ICANON) ? LINUX_VEOL : LINUX_VTIME];
512 	lio->c_cc[LINUX__VEOL2] = lios.c_cc[LINUX_VEOL2];
513 	lio->c_cc[LINUX__VSWTC] = lios.c_cc[LINUX_VSWTC];
514 #else
515 	memcpy(lio->c_cc, lios.c_cc, LINUX_NCC);
516 #endif
517 }
518 
519 static void
520 linux_to_bsd_termio(struct linux_termio *lio, struct termios *bios)
521 {
522 	struct linux_termios lios;
523 	int i;
524 
525 	lios.c_iflag = lio->c_iflag;
526 	lios.c_oflag = lio->c_oflag;
527 	lios.c_cflag = lio->c_cflag;
528 	lios.c_lflag = lio->c_lflag;
529 #ifdef __alpha__
530 	for (i=0; i<LINUX_NCCS; i++)
531 		lios.c_cc[i] = LINUX_POSIX_VDISABLE;
532 	lios.c_cc[LINUX_VINTR] = lio->c_cc[LINUX__VINTR];
533 	lios.c_cc[LINUX_VQUIT] = lio->c_cc[LINUX__VQUIT];
534 	lios.c_cc[LINUX_VERASE] = lio->c_cc[LINUX__VERASE];
535 	lios.c_cc[LINUX_VKILL] = lio->c_cc[LINUX__VKILL];
536 	lios.c_cc[LINUX_VEOL2] = lio->c_cc[LINUX__VEOL2];
537 	lios.c_cc[LINUX_VSWTC] = lio->c_cc[LINUX__VSWTC];
538 	lios.c_cc[(lio->c_lflag & ICANON) ? LINUX_VEOF : LINUX_VMIN] =
539 	    lio->c_cc[LINUX__VEOF];
540 	lios.c_cc[(lio->c_lflag & ICANON) ? LINUX_VEOL : LINUX_VTIME] =
541 	    lio->c_cc[LINUX__VEOL];
542 #else
543 	for (i=LINUX_NCC; i<LINUX_NCCS; i++)
544 		lios.c_cc[i] = LINUX_POSIX_VDISABLE;
545 	memcpy(lios.c_cc, lio->c_cc, LINUX_NCC);
546 #endif
547 	linux_to_bsd_termios(&lios, bios);
548 }
549 
550 static int
551 linux_ioctl_termio(struct thread *td, struct linux_ioctl_args *args)
552 {
553 	struct termios bios;
554 	struct linux_termios lios;
555 	struct linux_termio lio;
556 	struct file *fp;
557 	int error;
558 
559 	if ((error = fget(td, args->fd, &fp)) != 0)
560 		return (error);
561 
562 	switch (args->cmd & 0xffff) {
563 
564 	case LINUX_TCGETS:
565 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, td->td_ucred,
566 		    td);
567 		if (error)
568 			break;
569 		bsd_to_linux_termios(&bios, &lios);
570 		error = copyout(&lios, (caddr_t)args->arg, sizeof(lios));
571 		break;
572 
573 	case LINUX_TCSETS:
574 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
575 		if (error)
576 			break;
577 		linux_to_bsd_termios(&lios, &bios);
578 		error = (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, td->td_ucred,
579 		    td));
580 		break;
581 
582 	case LINUX_TCSETSW:
583 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
584 		if (error)
585 			break;
586 		linux_to_bsd_termios(&lios, &bios);
587 		error = (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, td->td_ucred,
588 		    td));
589 		break;
590 
591 	case LINUX_TCSETSF:
592 		error = copyin((caddr_t)args->arg, &lios, sizeof(lios));
593 		if (error)
594 			break;
595 		linux_to_bsd_termios(&lios, &bios);
596 		error = (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, td->td_ucred,
597 		    td));
598 		break;
599 
600 	case LINUX_TCGETA:
601 		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, td->td_ucred,
602 		    td);
603 		if (error)
604 			break;
605 		bsd_to_linux_termio(&bios, &lio);
606 		error = (copyout(&lio, (caddr_t)args->arg, sizeof(lio)));
607 		break;
608 
609 	case LINUX_TCSETA:
610 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
611 		if (error)
612 			break;
613 		linux_to_bsd_termio(&lio, &bios);
614 		error = (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, td->td_ucred,
615 		    td));
616 		break;
617 
618 	case LINUX_TCSETAW:
619 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
620 		if (error)
621 			break;
622 		linux_to_bsd_termio(&lio, &bios);
623 		error = (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, td->td_ucred,
624 		    td));
625 		break;
626 
627 	case LINUX_TCSETAF:
628 		error = copyin((caddr_t)args->arg, &lio, sizeof(lio));
629 		if (error)
630 			break;
631 		linux_to_bsd_termio(&lio, &bios);
632 		error = (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, td->td_ucred,
633 		    td));
634 		break;
635 
636 	/* LINUX_TCSBRK */
637 
638 	case LINUX_TCXONC: {
639 		switch (args->arg) {
640 		case LINUX_TCOOFF:
641 			args->cmd = TIOCSTOP;
642 			break;
643 		case LINUX_TCOON:
644 			args->cmd = TIOCSTART;
645 			break;
646 		case LINUX_TCIOFF:
647 		case LINUX_TCION: {
648 			int c;
649 			struct write_args wr;
650 			error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios,
651 			    td->td_ucred, td);
652 			if (error)
653 				break;
654 			fdrop(fp, td);
655 			c = (args->arg == LINUX_TCIOFF) ? VSTOP : VSTART;
656 			c = bios.c_cc[c];
657 			if (c != _POSIX_VDISABLE) {
658 				wr.fd = args->fd;
659 				wr.buf = &c;
660 				wr.nbyte = sizeof(c);
661 				return (write(td, &wr));
662 			} else
663 				return (0);
664 		}
665 		default:
666 			fdrop(fp, td);
667 			return (EINVAL);
668 		}
669 		args->arg = 0;
670 		error = (ioctl(td, (struct ioctl_args *)args));
671 		break;
672 	}
673 
674 	case LINUX_TCFLSH: {
675 		args->cmd = TIOCFLUSH;
676 		switch (args->arg) {
677 		case LINUX_TCIFLUSH:
678 			args->arg = FREAD;
679 			break;
680 		case LINUX_TCOFLUSH:
681 			args->arg = FWRITE;
682 			break;
683 		case LINUX_TCIOFLUSH:
684 			args->arg = FREAD | FWRITE;
685 			break;
686 		default:
687 			fdrop(fp, td);
688 			return (EINVAL);
689 		}
690 		error = (ioctl(td, (struct ioctl_args *)args));
691 		break;
692 	}
693 
694 	case LINUX_TIOCEXCL:
695 		args->cmd = TIOCEXCL;
696 		error = (ioctl(td, (struct ioctl_args *)args));
697 		break;
698 
699 	case LINUX_TIOCNXCL:
700 		args->cmd = TIOCNXCL;
701 		error = (ioctl(td, (struct ioctl_args *)args));
702 		break;
703 
704 	case LINUX_TIOCSCTTY:
705 		args->cmd = TIOCSCTTY;
706 		error = (ioctl(td, (struct ioctl_args *)args));
707 		break;
708 
709 	case LINUX_TIOCGPGRP:
710 		args->cmd = TIOCGPGRP;
711 		error = (ioctl(td, (struct ioctl_args *)args));
712 		break;
713 
714 	case LINUX_TIOCSPGRP:
715 		args->cmd = TIOCSPGRP;
716 		error = (ioctl(td, (struct ioctl_args *)args));
717 		break;
718 
719 	/* LINUX_TIOCOUTQ */
720 	/* LINUX_TIOCSTI */
721 
722 	case LINUX_TIOCGWINSZ:
723 		args->cmd = TIOCGWINSZ;
724 		error = (ioctl(td, (struct ioctl_args *)args));
725 		break;
726 
727 	case LINUX_TIOCSWINSZ:
728 		args->cmd = TIOCSWINSZ;
729 		error = (ioctl(td, (struct ioctl_args *)args));
730 		break;
731 
732 	case LINUX_TIOCMGET:
733 		args->cmd = TIOCMGET;
734 		error = (ioctl(td, (struct ioctl_args *)args));
735 		break;
736 
737 	case LINUX_TIOCMBIS:
738 		args->cmd = TIOCMBIS;
739 		error = (ioctl(td, (struct ioctl_args *)args));
740 		break;
741 
742 	case LINUX_TIOCMBIC:
743 		args->cmd = TIOCMBIC;
744 		error = (ioctl(td, (struct ioctl_args *)args));
745 		break;
746 
747 	case LINUX_TIOCMSET:
748 		args->cmd = TIOCMSET;
749 		error = (ioctl(td, (struct ioctl_args *)args));
750 		break;
751 
752 	/* TIOCGSOFTCAR */
753 	/* TIOCSSOFTCAR */
754 
755 	case LINUX_FIONREAD: /* LINUX_TIOCINQ */
756 		args->cmd = FIONREAD;
757 		error = (ioctl(td, (struct ioctl_args *)args));
758 		break;
759 
760 	/* LINUX_TIOCLINUX */
761 
762 	case LINUX_TIOCCONS:
763 		args->cmd = TIOCCONS;
764 		error = (ioctl(td, (struct ioctl_args *)args));
765 		break;
766 
767 	case LINUX_TIOCGSERIAL: {
768 		struct linux_serial_struct lss;
769 		lss.type = LINUX_PORT_16550A;
770 		lss.flags = 0;
771 		lss.close_delay = 0;
772 		error = copyout(&lss, (caddr_t)args->arg, sizeof(lss));
773 		break;
774 	}
775 
776 	case LINUX_TIOCSSERIAL: {
777 		struct linux_serial_struct lss;
778 		error = copyin((caddr_t)args->arg, &lss, sizeof(lss));
779 		if (error)
780 			break;
781 		/* XXX - It really helps to have an implementation that
782 		 * does nothing. NOT!
783 		 */
784 		error = 0;
785 		break;
786 	}
787 
788 	/* LINUX_TIOCPKT */
789 
790 	case LINUX_FIONBIO:
791 		args->cmd = FIONBIO;
792 		error = (ioctl(td, (struct ioctl_args *)args));
793 		break;
794 
795 	case LINUX_TIOCNOTTY:
796 		args->cmd = TIOCNOTTY;
797 		error = (ioctl(td, (struct ioctl_args *)args));
798 		break;
799 
800 	case LINUX_TIOCSETD: {
801 		int line;
802 		switch (args->arg) {
803 		case LINUX_N_TTY:
804 			line = TTYDISC;
805 			break;
806 		case LINUX_N_SLIP:
807 			line = SLIPDISC;
808 			break;
809 		case LINUX_N_PPP:
810 			line = PPPDISC;
811 			break;
812 		default:
813 			fdrop(fp, td);
814 			return (EINVAL);
815 		}
816 		error = (fo_ioctl(fp, TIOCSETD, (caddr_t)&line, td->td_ucred,
817 		    td));
818 		break;
819 	}
820 
821 	case LINUX_TIOCGETD: {
822 		int linux_line;
823 		int bsd_line = TTYDISC;
824 		error = fo_ioctl(fp, TIOCGETD, (caddr_t)&bsd_line,
825 		    td->td_ucred, td);
826 		if (error)
827 			return (error);
828 		switch (bsd_line) {
829 		case TTYDISC:
830 			linux_line = LINUX_N_TTY;
831 			break;
832 		case SLIPDISC:
833 			linux_line = LINUX_N_SLIP;
834 			break;
835 		case PPPDISC:
836 			linux_line = LINUX_N_PPP;
837 			break;
838 		default:
839 			fdrop(fp, td);
840 			return (EINVAL);
841 		}
842 		error = (copyout(&linux_line, (caddr_t)args->arg, sizeof(int)));
843 		break;
844 	}
845 
846 	/* LINUX_TCSBRKP */
847 	/* LINUX_TIOCTTYGSTRUCT */
848 
849 	case LINUX_FIONCLEX:
850 		args->cmd = FIONCLEX;
851 		error = (ioctl(td, (struct ioctl_args *)args));
852 		break;
853 
854 	case LINUX_FIOCLEX:
855 		args->cmd = FIOCLEX;
856 		error = (ioctl(td, (struct ioctl_args *)args));
857 		break;
858 
859 	case LINUX_FIOASYNC:
860 		args->cmd = FIOASYNC;
861 		error = (ioctl(td, (struct ioctl_args *)args));
862 		break;
863 
864 	/* LINUX_TIOCSERCONFIG */
865 	/* LINUX_TIOCSERGWILD */
866 	/* LINUX_TIOCSERSWILD */
867 	/* LINUX_TIOCGLCKTRMIOS */
868 	/* LINUX_TIOCSLCKTRMIOS */
869 
870 	default:
871 		error = ENOIOCTL;
872 		break;
873 	}
874 
875 	fdrop(fp, td);
876 	return (error);
877 }
878 
879 /*
880  * CDROM related ioctls
881  */
882 
883 struct linux_cdrom_msf
884 {
885 	u_char	cdmsf_min0;
886 	u_char	cdmsf_sec0;
887 	u_char	cdmsf_frame0;
888 	u_char	cdmsf_min1;
889 	u_char	cdmsf_sec1;
890 	u_char	cdmsf_frame1;
891 };
892 
893 struct linux_cdrom_tochdr
894 {
895 	u_char	cdth_trk0;
896 	u_char	cdth_trk1;
897 };
898 
899 union linux_cdrom_addr
900 {
901 	struct {
902 		u_char	minute;
903 		u_char	second;
904 		u_char	frame;
905 	} msf;
906 	int	lba;
907 };
908 
909 struct linux_cdrom_tocentry
910 {
911 	u_char	cdte_track;
912 	u_char	cdte_adr:4;
913 	u_char	cdte_ctrl:4;
914 	u_char	cdte_format;
915 	union linux_cdrom_addr cdte_addr;
916 	u_char	cdte_datamode;
917 };
918 
919 struct linux_cdrom_subchnl
920 {
921 	u_char	cdsc_format;
922 	u_char	cdsc_audiostatus;
923 	u_char	cdsc_adr:4;
924 	u_char	cdsc_ctrl:4;
925 	u_char	cdsc_trk;
926 	u_char	cdsc_ind;
927 	union linux_cdrom_addr cdsc_absaddr;
928 	union linux_cdrom_addr cdsc_reladdr;
929 };
930 
931 struct l_dvd_layer {
932 	u_char		book_version:4;
933 	u_char		book_type:4;
934 	u_char		min_rate:4;
935 	u_char		disc_size:4;
936 	u_char		layer_type:4;
937 	u_char		track_path:1;
938 	u_char		nlayers:2;
939 	u_char		track_density:4;
940 	u_char		linear_density:4;
941 	u_char		bca:1;
942 	u_int32_t	start_sector;
943 	u_int32_t	end_sector;
944 	u_int32_t	end_sector_l0;
945 };
946 
947 struct l_dvd_physical {
948 	u_char		type;
949 	u_char		layer_num;
950 	struct l_dvd_layer layer[4];
951 };
952 
953 struct l_dvd_copyright {
954 	u_char		type;
955 	u_char		layer_num;
956 	u_char		cpst;
957 	u_char		rmi;
958 };
959 
960 struct l_dvd_disckey {
961 	u_char		type;
962 	l_uint		agid:2;
963 	u_char		value[2048];
964 };
965 
966 struct l_dvd_bca {
967 	u_char		type;
968 	l_int		len;
969 	u_char		value[188];
970 };
971 
972 struct l_dvd_manufact {
973 	u_char		type;
974 	u_char		layer_num;
975 	l_int		len;
976 	u_char		value[2048];
977 };
978 
979 typedef union {
980 	u_char			type;
981 	struct l_dvd_physical	physical;
982 	struct l_dvd_copyright	copyright;
983 	struct l_dvd_disckey	disckey;
984 	struct l_dvd_bca	bca;
985 	struct l_dvd_manufact	manufact;
986 } l_dvd_struct;
987 
988 typedef u_char l_dvd_key[5];
989 typedef u_char l_dvd_challenge[10];
990 
991 struct l_dvd_lu_send_agid {
992 	u_char		type;
993 	l_uint		agid:2;
994 };
995 
996 struct l_dvd_host_send_challenge {
997 	u_char		type;
998 	l_uint		agid:2;
999 	l_dvd_challenge	chal;
1000 };
1001 
1002 struct l_dvd_send_key {
1003 	u_char		type;
1004 	l_uint		agid:2;
1005 	l_dvd_key	key;
1006 };
1007 
1008 struct l_dvd_lu_send_challenge {
1009 	u_char		type;
1010 	l_uint		agid:2;
1011 	l_dvd_challenge	chal;
1012 };
1013 
1014 struct l_dvd_lu_send_title_key {
1015 	u_char		type;
1016 	l_uint		agid:2;
1017 	l_dvd_key	title_key;
1018 	l_int		lba;
1019 	l_uint		cpm:1;
1020 	l_uint		cp_sec:1;
1021 	l_uint		cgms:2;
1022 };
1023 
1024 struct l_dvd_lu_send_asf {
1025 	u_char		type;
1026 	l_uint		agid:2;
1027 	l_uint		asf:1;
1028 };
1029 
1030 struct l_dvd_host_send_rpcstate {
1031 	u_char		type;
1032 	u_char		pdrc;
1033 };
1034 
1035 struct l_dvd_lu_send_rpcstate {
1036 	u_char		type:2;
1037 	u_char		vra:3;
1038 	u_char		ucca:3;
1039 	u_char		region_mask;
1040 	u_char		rpc_scheme;
1041 };
1042 
1043 typedef union {
1044 	u_char				type;
1045 	struct l_dvd_lu_send_agid	lsa;
1046 	struct l_dvd_host_send_challenge hsc;
1047 	struct l_dvd_send_key		lsk;
1048 	struct l_dvd_lu_send_challenge	lsc;
1049 	struct l_dvd_send_key		hsk;
1050 	struct l_dvd_lu_send_title_key	lstk;
1051 	struct l_dvd_lu_send_asf	lsasf;
1052 	struct l_dvd_host_send_rpcstate	hrpcs;
1053 	struct l_dvd_lu_send_rpcstate	lrpcs;
1054 } l_dvd_authinfo;
1055 
1056 static void
1057 bsd_to_linux_msf_lba(u_char af, union msf_lba *bp, union linux_cdrom_addr *lp)
1058 {
1059 	if (af == CD_LBA_FORMAT)
1060 		lp->lba = bp->lba;
1061 	else {
1062 		lp->msf.minute = bp->msf.minute;
1063 		lp->msf.second = bp->msf.second;
1064 		lp->msf.frame = bp->msf.frame;
1065 	}
1066 }
1067 
1068 static void
1069 set_linux_cdrom_addr(union linux_cdrom_addr *addr, int format, int lba)
1070 {
1071 	if (format == LINUX_CDROM_MSF) {
1072 		addr->msf.frame = lba % 75;
1073 		lba /= 75;
1074 		lba += 2;
1075 		addr->msf.second = lba % 60;
1076 		addr->msf.minute = lba / 60;
1077 	} else
1078 		addr->lba = lba;
1079 }
1080 
1081 static int
1082 linux_to_bsd_dvd_struct(l_dvd_struct *lp, struct dvd_struct *bp)
1083 {
1084 	bp->format = lp->type;
1085 	switch (bp->format) {
1086 	case DVD_STRUCT_PHYSICAL:
1087 		if (bp->layer_num >= 4)
1088 			return (EINVAL);
1089 		bp->layer_num = lp->physical.layer_num;
1090 		break;
1091 	case DVD_STRUCT_COPYRIGHT:
1092 		bp->layer_num = lp->copyright.layer_num;
1093 		break;
1094 	case DVD_STRUCT_DISCKEY:
1095 		bp->agid = lp->disckey.agid;
1096 		break;
1097 	case DVD_STRUCT_BCA:
1098 	case DVD_STRUCT_MANUFACT:
1099 		break;
1100 	default:
1101 		return (EINVAL);
1102 	}
1103 	return (0);
1104 }
1105 
1106 static int
1107 bsd_to_linux_dvd_struct(struct dvd_struct *bp, l_dvd_struct *lp)
1108 {
1109 	switch (bp->format) {
1110 	case DVD_STRUCT_PHYSICAL: {
1111 		struct dvd_layer *blp = (struct dvd_layer *)bp->data;
1112 		struct l_dvd_layer *llp = &lp->physical.layer[bp->layer_num];
1113 		memset(llp, 0, sizeof(*llp));
1114 		llp->book_version = blp->book_version;
1115 		llp->book_type = blp->book_type;
1116 		llp->min_rate = blp->max_rate;
1117 		llp->disc_size = blp->disc_size;
1118 		llp->layer_type = blp->layer_type;
1119 		llp->track_path = blp->track_path;
1120 		llp->nlayers = blp->nlayers;
1121 		llp->track_density = blp->track_density;
1122 		llp->linear_density = blp->linear_density;
1123 		llp->bca = blp->bca;
1124 		llp->start_sector = blp->start_sector;
1125 		llp->end_sector = blp->end_sector;
1126 		llp->end_sector_l0 = blp->end_sector_l0;
1127 		break;
1128 	}
1129 	case DVD_STRUCT_COPYRIGHT:
1130 		lp->copyright.cpst = bp->cpst;
1131 		lp->copyright.rmi = bp->rmi;
1132 		break;
1133 	case DVD_STRUCT_DISCKEY:
1134 		memcpy(lp->disckey.value, bp->data, sizeof(lp->disckey.value));
1135 		break;
1136 	case DVD_STRUCT_BCA:
1137 		lp->bca.len = bp->length;
1138 		memcpy(lp->bca.value, bp->data, sizeof(lp->bca.value));
1139 		break;
1140 	case DVD_STRUCT_MANUFACT:
1141 		lp->manufact.len = bp->length;
1142 		memcpy(lp->manufact.value, bp->data,
1143 		    sizeof(lp->manufact.value));
1144 		/* lp->manufact.layer_num is unused in linux (redhat 7.0) */
1145 		break;
1146 	default:
1147 		return (EINVAL);
1148 	}
1149 	return (0);
1150 }
1151 
1152 static int
1153 linux_to_bsd_dvd_authinfo(l_dvd_authinfo *lp, int *bcode,
1154     struct dvd_authinfo *bp)
1155 {
1156 	switch (lp->type) {
1157 	case LINUX_DVD_LU_SEND_AGID:
1158 		*bcode = DVDIOCREPORTKEY;
1159 		bp->format = DVD_REPORT_AGID;
1160 		bp->agid = lp->lsa.agid;
1161 		break;
1162 	case LINUX_DVD_HOST_SEND_CHALLENGE:
1163 		*bcode = DVDIOCSENDKEY;
1164 		bp->format = DVD_SEND_CHALLENGE;
1165 		bp->agid = lp->hsc.agid;
1166 		memcpy(bp->keychal, lp->hsc.chal, 10);
1167 		break;
1168 	case LINUX_DVD_LU_SEND_KEY1:
1169 		*bcode = DVDIOCREPORTKEY;
1170 		bp->format = DVD_REPORT_KEY1;
1171 		bp->agid = lp->lsk.agid;
1172 		break;
1173 	case LINUX_DVD_LU_SEND_CHALLENGE:
1174 		*bcode = DVDIOCREPORTKEY;
1175 		bp->format = DVD_REPORT_CHALLENGE;
1176 		bp->agid = lp->lsc.agid;
1177 		break;
1178 	case LINUX_DVD_HOST_SEND_KEY2:
1179 		*bcode = DVDIOCSENDKEY;
1180 		bp->format = DVD_SEND_KEY2;
1181 		bp->agid = lp->hsk.agid;
1182 		memcpy(bp->keychal, lp->hsk.key, 5);
1183 		break;
1184 	case LINUX_DVD_LU_SEND_TITLE_KEY:
1185 		*bcode = DVDIOCREPORTKEY;
1186 		bp->format = DVD_REPORT_TITLE_KEY;
1187 		bp->agid = lp->lstk.agid;
1188 		bp->lba = lp->lstk.lba;
1189 		break;
1190 	case LINUX_DVD_LU_SEND_ASF:
1191 		*bcode = DVDIOCREPORTKEY;
1192 		bp->format = DVD_REPORT_ASF;
1193 		bp->agid = lp->lsasf.agid;
1194 		break;
1195 	case LINUX_DVD_INVALIDATE_AGID:
1196 		*bcode = DVDIOCREPORTKEY;
1197 		bp->format = DVD_INVALIDATE_AGID;
1198 		bp->agid = lp->lsa.agid;
1199 		break;
1200 	case LINUX_DVD_LU_SEND_RPC_STATE:
1201 		*bcode = DVDIOCREPORTKEY;
1202 		bp->format = DVD_REPORT_RPC;
1203 		break;
1204 	case LINUX_DVD_HOST_SEND_RPC_STATE:
1205 		*bcode = DVDIOCSENDKEY;
1206 		bp->format = DVD_SEND_RPC;
1207 		bp->region = lp->hrpcs.pdrc;
1208 		break;
1209 	default:
1210 		return (EINVAL);
1211 	}
1212 	return (0);
1213 }
1214 
1215 static int
1216 bsd_to_linux_dvd_authinfo(struct dvd_authinfo *bp, l_dvd_authinfo *lp)
1217 {
1218 	switch (lp->type) {
1219 	case LINUX_DVD_LU_SEND_AGID:
1220 		lp->lsa.agid = bp->agid;
1221 		break;
1222 	case LINUX_DVD_HOST_SEND_CHALLENGE:
1223 		lp->type = LINUX_DVD_LU_SEND_KEY1;
1224 		break;
1225 	case LINUX_DVD_LU_SEND_KEY1:
1226 		memcpy(lp->lsk.key, bp->keychal, sizeof(lp->lsk.key));
1227 		break;
1228 	case LINUX_DVD_LU_SEND_CHALLENGE:
1229 		memcpy(lp->lsc.chal, bp->keychal, sizeof(lp->lsc.chal));
1230 		break;
1231 	case LINUX_DVD_HOST_SEND_KEY2:
1232 		lp->type = LINUX_DVD_AUTH_ESTABLISHED;
1233 		break;
1234 	case LINUX_DVD_LU_SEND_TITLE_KEY:
1235 		memcpy(lp->lstk.title_key, bp->keychal,
1236 		    sizeof(lp->lstk.title_key));
1237 		lp->lstk.cpm = bp->cpm;
1238 		lp->lstk.cp_sec = bp->cp_sec;
1239 		lp->lstk.cgms = bp->cgms;
1240 		break;
1241 	case LINUX_DVD_LU_SEND_ASF:
1242 		lp->lsasf.asf = bp->asf;
1243 		break;
1244 	case LINUX_DVD_INVALIDATE_AGID:
1245 		break;
1246 	case LINUX_DVD_LU_SEND_RPC_STATE:
1247 		lp->lrpcs.type = bp->reg_type;
1248 		lp->lrpcs.vra = bp->vend_rsts;
1249 		lp->lrpcs.ucca = bp->user_rsts;
1250 		lp->lrpcs.region_mask = bp->region;
1251 		lp->lrpcs.rpc_scheme = bp->rpc_scheme;
1252 		break;
1253 	case LINUX_DVD_HOST_SEND_RPC_STATE:
1254 		break;
1255 	default:
1256 		return (EINVAL);
1257 	}
1258 	return (0);
1259 }
1260 
1261 static int
1262 linux_ioctl_cdrom(struct thread *td, struct linux_ioctl_args *args)
1263 {
1264 	struct file *fp;
1265 	int error;
1266 
1267 	if ((error = fget(td, args->fd, &fp)) != 0)
1268 		return (error);
1269 	switch (args->cmd & 0xffff) {
1270 
1271 	case LINUX_CDROMPAUSE:
1272 		args->cmd = CDIOCPAUSE;
1273 		error = (ioctl(td, (struct ioctl_args *)args));
1274 		break;
1275 
1276 	case LINUX_CDROMRESUME:
1277 		args->cmd = CDIOCRESUME;
1278 		error = (ioctl(td, (struct ioctl_args *)args));
1279 		break;
1280 
1281 	case LINUX_CDROMPLAYMSF:
1282 		args->cmd = CDIOCPLAYMSF;
1283 		error = (ioctl(td, (struct ioctl_args *)args));
1284 		break;
1285 
1286 	case LINUX_CDROMPLAYTRKIND:
1287 		args->cmd = CDIOCPLAYTRACKS;
1288 		error = (ioctl(td, (struct ioctl_args *)args));
1289 		break;
1290 
1291 	case LINUX_CDROMREADTOCHDR: {
1292 		struct ioc_toc_header th;
1293 		struct linux_cdrom_tochdr lth;
1294 		error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&th,
1295 		    td->td_ucred, td);
1296 		if (!error) {
1297 			lth.cdth_trk0 = th.starting_track;
1298 			lth.cdth_trk1 = th.ending_track;
1299 			copyout(&lth, (caddr_t)args->arg, sizeof(lth));
1300 		}
1301 		break;
1302 	}
1303 
1304 	case LINUX_CDROMREADTOCENTRY: {
1305 		struct linux_cdrom_tocentry lte, *ltep =
1306 		    (struct linux_cdrom_tocentry *)args->arg;
1307 		struct ioc_read_toc_single_entry irtse;
1308 		irtse.address_format = ltep->cdte_format;
1309 		irtse.track = ltep->cdte_track;
1310 		error = fo_ioctl(fp, CDIOREADTOCENTRY, (caddr_t)&irtse,
1311 		    td->td_ucred, td);
1312 		if (!error) {
1313 			lte = *ltep;
1314 			lte.cdte_ctrl = irtse.entry.control;
1315 			lte.cdte_adr = irtse.entry.addr_type;
1316 			bsd_to_linux_msf_lba(irtse.address_format,
1317 			    &irtse.entry.addr, &lte.cdte_addr);
1318 			copyout(&lte, (caddr_t)args->arg, sizeof(lte));
1319 		}
1320 		break;
1321 	}
1322 
1323 	case LINUX_CDROMSTOP:
1324 		args->cmd = CDIOCSTOP;
1325 		error = (ioctl(td, (struct ioctl_args *)args));
1326 		break;
1327 
1328 	case LINUX_CDROMSTART:
1329 		args->cmd = CDIOCSTART;
1330 		error = (ioctl(td, (struct ioctl_args *)args));
1331 		break;
1332 
1333 	case LINUX_CDROMEJECT:
1334 		args->cmd = CDIOCEJECT;
1335 		error = (ioctl(td, (struct ioctl_args *)args));
1336 		break;
1337 
1338 	/* LINUX_CDROMVOLCTRL */
1339 
1340 	case LINUX_CDROMSUBCHNL: {
1341 		struct linux_cdrom_subchnl sc;
1342 		struct ioc_read_subchannel bsdsc;
1343 		struct cd_sub_channel_info *bsdinfo;
1344 		caddr_t sg = stackgap_init();
1345 		bsdinfo = (struct cd_sub_channel_info*)stackgap_alloc(&sg,
1346 		    sizeof(struct cd_sub_channel_info));
1347 		bsdsc.address_format = CD_LBA_FORMAT;
1348 		bsdsc.data_format = CD_CURRENT_POSITION;
1349 		bsdsc.track = 0;
1350 		bsdsc.data_len = sizeof(struct cd_sub_channel_info);
1351 		bsdsc.data = bsdinfo;
1352 		error = fo_ioctl(fp, CDIOCREADSUBCHANNEL, (caddr_t)&bsdsc,
1353 		    td->td_ucred, td);
1354 		if (error)
1355 			break;
1356 		error = copyin((caddr_t)args->arg, &sc,
1357 		    sizeof(struct linux_cdrom_subchnl));
1358 		if (error)
1359 			break;
1360 		sc.cdsc_audiostatus = bsdinfo->header.audio_status;
1361 		sc.cdsc_adr = bsdinfo->what.position.addr_type;
1362 		sc.cdsc_ctrl = bsdinfo->what.position.control;
1363 		sc.cdsc_trk = bsdinfo->what.position.track_number;
1364 		sc.cdsc_ind = bsdinfo->what.position.index_number;
1365 		set_linux_cdrom_addr(&sc.cdsc_absaddr, sc.cdsc_format,
1366 		    bsdinfo->what.position.absaddr.lba);
1367 		set_linux_cdrom_addr(&sc.cdsc_reladdr, sc.cdsc_format,
1368 		    bsdinfo->what.position.reladdr.lba);
1369 		error = copyout(&sc, (caddr_t)args->arg,
1370 		    sizeof(struct linux_cdrom_subchnl));
1371 		break;
1372 	}
1373 
1374 	/* LINUX_CDROMREADMODE2 */
1375 	/* LINUX_CDROMREADMODE1 */
1376 	/* LINUX_CDROMREADAUDIO */
1377 	/* LINUX_CDROMEJECT_SW */
1378 	/* LINUX_CDROMMULTISESSION */
1379 	/* LINUX_CDROM_GET_UPC */
1380 
1381 	case LINUX_CDROMRESET:
1382 		args->cmd = CDIOCRESET;
1383 		error = (ioctl(td, (struct ioctl_args *)args));
1384 		break;
1385 
1386 	/* LINUX_CDROMVOLREAD */
1387 	/* LINUX_CDROMREADRAW */
1388 	/* LINUX_CDROMREADCOOKED */
1389 	/* LINUX_CDROMSEEK */
1390 	/* LINUX_CDROMPLAYBLK */
1391 	/* LINUX_CDROMREADALL */
1392 	/* LINUX_CDROMCLOSETRAY */
1393 	/* LINUX_CDROMLOADFROMSLOT */
1394 	/* LINUX_CDROMGETSPINDOWN */
1395 	/* LINUX_CDROMSETSPINDOWN */
1396 	/* LINUX_CDROM_SET_OPTIONS */
1397 	/* LINUX_CDROM_CLEAR_OPTIONS */
1398 	/* LINUX_CDROM_SELECT_SPEED */
1399 	/* LINUX_CDROM_SELECT_DISC */
1400 	/* LINUX_CDROM_MEDIA_CHANGED */
1401 	/* LINUX_CDROM_DRIVE_STATUS */
1402 	/* LINUX_CDROM_DISC_STATUS */
1403 	/* LINUX_CDROM_CHANGER_NSLOTS */
1404 	/* LINUX_CDROM_LOCKDOOR */
1405 	/* LINUX_CDROM_DEBUG */
1406 	/* LINUX_CDROM_GET_CAPABILITY */
1407 	/* LINUX_CDROMAUDIOBUFSIZ */
1408 
1409 	case LINUX_DVD_READ_STRUCT: {
1410 		l_dvd_struct lds;
1411 		struct dvd_struct bds;
1412 
1413 		error = copyin((caddr_t)args->arg, &lds, sizeof(l_dvd_struct));
1414 		if (error)
1415 			break;
1416 		error = linux_to_bsd_dvd_struct(&lds, &bds);
1417 		if (error)
1418 			break;
1419 		error = fo_ioctl(fp, DVDIOCREADSTRUCTURE, (caddr_t)&bds,
1420 		    td->td_ucred, td);
1421 		if (error)
1422 			break;
1423 		error = bsd_to_linux_dvd_struct(&bds, &lds);
1424 		if (error)
1425 			break;
1426 		error = copyout(&lds, (caddr_t)args->arg,
1427 				sizeof(l_dvd_struct));
1428 		break;
1429 	}
1430 
1431 	/* LINUX_DVD_WRITE_STRUCT */
1432 
1433 	case LINUX_DVD_AUTH: {
1434 		l_dvd_authinfo lda;
1435 		struct dvd_authinfo bda;
1436 		int bcode;
1437 
1438 		error = copyin((caddr_t)args->arg, &lda,
1439 		    sizeof(l_dvd_authinfo));
1440 		if (error)
1441 			break;
1442 		error = linux_to_bsd_dvd_authinfo(&lda, &bcode, &bda);
1443 		if (error)
1444 			break;
1445 		error = fo_ioctl(fp, bcode, (caddr_t)&bda, td->td_ucred,
1446 		    td);
1447 		if (error) {
1448 			if (lda.type == LINUX_DVD_HOST_SEND_KEY2) {
1449 				lda.type = LINUX_DVD_AUTH_FAILURE;
1450 				copyout(&lda, (caddr_t)args->arg,
1451 				    sizeof(l_dvd_authinfo));
1452 			}
1453 			break;
1454 		}
1455 		error = bsd_to_linux_dvd_authinfo(&bda, &lda);
1456 		if (error)
1457 			break;
1458 		error = copyout(&lda, (caddr_t)args->arg,
1459 				sizeof(l_dvd_authinfo));
1460 		break;
1461 	}
1462 
1463 	/* LINUX_CDROM_SEND_PACKET */
1464 	/* LINUX_CDROM_NEXT_WRITABLE */
1465 	/* LINUX_CDROM_LAST_WRITTEN */
1466 
1467 	default:
1468 		error = ENOIOCTL;
1469 		break;
1470 	}
1471 
1472 	fdrop(fp, td);
1473 	return (error);
1474 }
1475 
1476 /*
1477  * Sound related ioctls
1478  */
1479 
1480 static u_int32_t dirbits[4] = { IOC_VOID, IOC_IN, IOC_OUT, IOC_INOUT };
1481 
1482 #define	SETDIR(c)	(((c) & ~IOC_DIRMASK) | dirbits[args->cmd >> 30])
1483 
1484 static int
1485 linux_ioctl_sound(struct thread *td, struct linux_ioctl_args *args)
1486 {
1487 
1488 	switch (args->cmd & 0xffff) {
1489 
1490 	case LINUX_SOUND_MIXER_WRITE_VOLUME:
1491 		args->cmd = SETDIR(SOUND_MIXER_WRITE_VOLUME);
1492 		return (ioctl(td, (struct ioctl_args *)args));
1493 
1494 	case LINUX_SOUND_MIXER_WRITE_BASS:
1495 		args->cmd = SETDIR(SOUND_MIXER_WRITE_BASS);
1496 		return (ioctl(td, (struct ioctl_args *)args));
1497 
1498 	case LINUX_SOUND_MIXER_WRITE_TREBLE:
1499 		args->cmd = SETDIR(SOUND_MIXER_WRITE_TREBLE);
1500 		return (ioctl(td, (struct ioctl_args *)args));
1501 
1502 	case LINUX_SOUND_MIXER_WRITE_SYNTH:
1503 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SYNTH);
1504 		return (ioctl(td, (struct ioctl_args *)args));
1505 
1506 	case LINUX_SOUND_MIXER_WRITE_PCM:
1507 		args->cmd = SETDIR(SOUND_MIXER_WRITE_PCM);
1508 		return (ioctl(td, (struct ioctl_args *)args));
1509 
1510 	case LINUX_SOUND_MIXER_WRITE_SPEAKER:
1511 		args->cmd = SETDIR(SOUND_MIXER_WRITE_SPEAKER);
1512 		return (ioctl(td, (struct ioctl_args *)args));
1513 
1514 	case LINUX_SOUND_MIXER_WRITE_LINE:
1515 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE);
1516 		return (ioctl(td, (struct ioctl_args *)args));
1517 
1518 	case LINUX_SOUND_MIXER_WRITE_MIC:
1519 		args->cmd = SETDIR(SOUND_MIXER_WRITE_MIC);
1520 		return (ioctl(td, (struct ioctl_args *)args));
1521 
1522 	case LINUX_SOUND_MIXER_WRITE_CD:
1523 		args->cmd = SETDIR(SOUND_MIXER_WRITE_CD);
1524 		return (ioctl(td, (struct ioctl_args *)args));
1525 
1526 	case LINUX_SOUND_MIXER_WRITE_IMIX:
1527 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IMIX);
1528 		return (ioctl(td, (struct ioctl_args *)args));
1529 
1530 	case LINUX_SOUND_MIXER_WRITE_ALTPCM:
1531 		args->cmd = SETDIR(SOUND_MIXER_WRITE_ALTPCM);
1532 		return (ioctl(td, (struct ioctl_args *)args));
1533 
1534 	case LINUX_SOUND_MIXER_WRITE_RECLEV:
1535 		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECLEV);
1536 		return (ioctl(td, (struct ioctl_args *)args));
1537 
1538 	case LINUX_SOUND_MIXER_WRITE_IGAIN:
1539 		args->cmd = SETDIR(SOUND_MIXER_WRITE_IGAIN);
1540 		return (ioctl(td, (struct ioctl_args *)args));
1541 
1542 	case LINUX_SOUND_MIXER_WRITE_OGAIN:
1543 		args->cmd = SETDIR(SOUND_MIXER_WRITE_OGAIN);
1544 		return (ioctl(td, (struct ioctl_args *)args));
1545 
1546 	case LINUX_SOUND_MIXER_WRITE_LINE1:
1547 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE1);
1548 		return (ioctl(td, (struct ioctl_args *)args));
1549 
1550 	case LINUX_SOUND_MIXER_WRITE_LINE2:
1551 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE2);
1552 		return (ioctl(td, (struct ioctl_args *)args));
1553 
1554 	case LINUX_SOUND_MIXER_WRITE_LINE3:
1555 		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE3);
1556 		return (ioctl(td, (struct ioctl_args *)args));
1557 
1558 	case LINUX_OSS_GETVERSION: {
1559 		int version = linux_get_oss_version(td->td_proc);
1560 		return (copyout(&version, (caddr_t)args->arg, sizeof(int)));
1561 	}
1562 
1563 	case LINUX_SOUND_MIXER_READ_DEVMASK:
1564 		args->cmd = SOUND_MIXER_READ_DEVMASK;
1565 		return (ioctl(td, (struct ioctl_args *)args));
1566 
1567 	case LINUX_SOUND_MIXER_WRITE_RECSRC:
1568 		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECSRC);
1569 		return (ioctl(td, (struct ioctl_args *)args));
1570 
1571 	case LINUX_SNDCTL_DSP_RESET:
1572 		args->cmd = SNDCTL_DSP_RESET;
1573 		return (ioctl(td, (struct ioctl_args *)args));
1574 
1575 	case LINUX_SNDCTL_DSP_SYNC:
1576 		args->cmd = SNDCTL_DSP_SYNC;
1577 		return (ioctl(td, (struct ioctl_args *)args));
1578 
1579 	case LINUX_SNDCTL_DSP_SPEED:
1580 		args->cmd = SNDCTL_DSP_SPEED;
1581 		return (ioctl(td, (struct ioctl_args *)args));
1582 
1583 	case LINUX_SNDCTL_DSP_STEREO:
1584 		args->cmd = SNDCTL_DSP_STEREO;
1585 		return (ioctl(td, (struct ioctl_args *)args));
1586 
1587 	case LINUX_SNDCTL_DSP_GETBLKSIZE: /* LINUX_SNDCTL_DSP_SETBLKSIZE */
1588 		args->cmd = SNDCTL_DSP_GETBLKSIZE;
1589 		return (ioctl(td, (struct ioctl_args *)args));
1590 
1591 	case LINUX_SNDCTL_DSP_SETFMT:
1592 		args->cmd = SNDCTL_DSP_SETFMT;
1593 		return (ioctl(td, (struct ioctl_args *)args));
1594 
1595 	case LINUX_SOUND_PCM_WRITE_CHANNELS:
1596 		args->cmd = SOUND_PCM_WRITE_CHANNELS;
1597 		return (ioctl(td, (struct ioctl_args *)args));
1598 
1599 	case LINUX_SOUND_PCM_WRITE_FILTER:
1600 		args->cmd = SOUND_PCM_WRITE_FILTER;
1601 		return (ioctl(td, (struct ioctl_args *)args));
1602 
1603 	case LINUX_SNDCTL_DSP_POST:
1604 		args->cmd = SNDCTL_DSP_POST;
1605 		return (ioctl(td, (struct ioctl_args *)args));
1606 
1607 	case LINUX_SNDCTL_DSP_SUBDIVIDE:
1608 		args->cmd = SNDCTL_DSP_SUBDIVIDE;
1609 		return (ioctl(td, (struct ioctl_args *)args));
1610 
1611 	case LINUX_SNDCTL_DSP_SETFRAGMENT:
1612 		args->cmd = SNDCTL_DSP_SETFRAGMENT;
1613 		return (ioctl(td, (struct ioctl_args *)args));
1614 
1615 	case LINUX_SNDCTL_DSP_GETFMTS:
1616 		args->cmd = SNDCTL_DSP_GETFMTS;
1617 		return (ioctl(td, (struct ioctl_args *)args));
1618 
1619 	case LINUX_SNDCTL_DSP_GETOSPACE:
1620 		args->cmd = SNDCTL_DSP_GETOSPACE;
1621 		return (ioctl(td, (struct ioctl_args *)args));
1622 
1623 	case LINUX_SNDCTL_DSP_GETISPACE:
1624 		args->cmd = SNDCTL_DSP_GETISPACE;
1625 		return (ioctl(td, (struct ioctl_args *)args));
1626 
1627 	case LINUX_SNDCTL_DSP_NONBLOCK:
1628 		args->cmd = SNDCTL_DSP_NONBLOCK;
1629 		return (ioctl(td, (struct ioctl_args *)args));
1630 
1631 	case LINUX_SNDCTL_DSP_GETCAPS:
1632 		args->cmd = SNDCTL_DSP_GETCAPS;
1633 		return (ioctl(td, (struct ioctl_args *)args));
1634 
1635 	case LINUX_SNDCTL_DSP_SETTRIGGER: /* LINUX_SNDCTL_GETTRIGGER */
1636 		args->cmd = SNDCTL_DSP_SETTRIGGER;
1637 		return (ioctl(td, (struct ioctl_args *)args));
1638 
1639 	case LINUX_SNDCTL_DSP_GETIPTR:
1640 		args->cmd = SNDCTL_DSP_GETIPTR;
1641 		return (ioctl(td, (struct ioctl_args *)args));
1642 
1643 	case LINUX_SNDCTL_DSP_GETOPTR:
1644 		args->cmd = SNDCTL_DSP_GETOPTR;
1645 		return (ioctl(td, (struct ioctl_args *)args));
1646 
1647 	case LINUX_SNDCTL_DSP_GETODELAY:
1648 		args->cmd = SNDCTL_DSP_GETODELAY;
1649 		return (ioctl(td, (struct ioctl_args *)args));
1650 
1651 	case LINUX_SNDCTL_SEQ_RESET:
1652 		args->cmd = SNDCTL_SEQ_RESET;
1653 		return (ioctl(td, (struct ioctl_args *)args));
1654 
1655 	case LINUX_SNDCTL_SEQ_SYNC:
1656 		args->cmd = SNDCTL_SEQ_SYNC;
1657 		return (ioctl(td, (struct ioctl_args *)args));
1658 
1659 	case LINUX_SNDCTL_SYNTH_INFO:
1660 		args->cmd = SNDCTL_SYNTH_INFO;
1661 		return (ioctl(td, (struct ioctl_args *)args));
1662 
1663 	case LINUX_SNDCTL_SEQ_CTRLRATE:
1664 		args->cmd = SNDCTL_SEQ_CTRLRATE;
1665 		return (ioctl(td, (struct ioctl_args *)args));
1666 
1667 	case LINUX_SNDCTL_SEQ_GETOUTCOUNT:
1668 		args->cmd = SNDCTL_SEQ_GETOUTCOUNT;
1669 		return (ioctl(td, (struct ioctl_args *)args));
1670 
1671 	case LINUX_SNDCTL_SEQ_GETINCOUNT:
1672 		args->cmd = SNDCTL_SEQ_GETINCOUNT;
1673 		return (ioctl(td, (struct ioctl_args *)args));
1674 
1675 	case LINUX_SNDCTL_SEQ_PERCMODE:
1676 		args->cmd = SNDCTL_SEQ_PERCMODE;
1677 		return (ioctl(td, (struct ioctl_args *)args));
1678 
1679 	case LINUX_SNDCTL_FM_LOAD_INSTR:
1680 		args->cmd = SNDCTL_FM_LOAD_INSTR;
1681 		return (ioctl(td, (struct ioctl_args *)args));
1682 
1683 	case LINUX_SNDCTL_SEQ_TESTMIDI:
1684 		args->cmd = SNDCTL_SEQ_TESTMIDI;
1685 		return (ioctl(td, (struct ioctl_args *)args));
1686 
1687 	case LINUX_SNDCTL_SEQ_RESETSAMPLES:
1688 		args->cmd = SNDCTL_SEQ_RESETSAMPLES;
1689 		return (ioctl(td, (struct ioctl_args *)args));
1690 
1691 	case LINUX_SNDCTL_SEQ_NRSYNTHS:
1692 		args->cmd = SNDCTL_SEQ_NRSYNTHS;
1693 		return (ioctl(td, (struct ioctl_args *)args));
1694 
1695 	case LINUX_SNDCTL_SEQ_NRMIDIS:
1696 		args->cmd = SNDCTL_SEQ_NRMIDIS;
1697 		return (ioctl(td, (struct ioctl_args *)args));
1698 
1699 	case LINUX_SNDCTL_MIDI_INFO:
1700 		args->cmd = SNDCTL_MIDI_INFO;
1701 		return (ioctl(td, (struct ioctl_args *)args));
1702 
1703 	case LINUX_SNDCTL_SEQ_TRESHOLD:
1704 		args->cmd = SNDCTL_SEQ_TRESHOLD;
1705 		return (ioctl(td, (struct ioctl_args *)args));
1706 
1707 	case LINUX_SNDCTL_SYNTH_MEMAVL:
1708 		args->cmd = SNDCTL_SYNTH_MEMAVL;
1709 		return (ioctl(td, (struct ioctl_args *)args));
1710 
1711 	}
1712 
1713 	return (ENOIOCTL);
1714 }
1715 
1716 /*
1717  * Console related ioctls
1718  */
1719 
1720 #define ISSIGVALID(sig)		((sig) > 0 && (sig) < NSIG)
1721 
1722 static int
1723 linux_ioctl_console(struct thread *td, struct linux_ioctl_args *args)
1724 {
1725 	struct file *fp;
1726 	int error;
1727 
1728 	if ((error = fget(td, args->fd, &fp)) != 0)
1729 		return (error);
1730 	switch (args->cmd & 0xffff) {
1731 
1732 	case LINUX_KIOCSOUND:
1733 		args->cmd = KIOCSOUND;
1734 		error = (ioctl(td, (struct ioctl_args *)args));
1735 		break;
1736 
1737 	case LINUX_KDMKTONE:
1738 		args->cmd = KDMKTONE;
1739 		error = (ioctl(td, (struct ioctl_args *)args));
1740 		break;
1741 
1742 	case LINUX_KDGETLED:
1743 		args->cmd = KDGETLED;
1744 		error = (ioctl(td, (struct ioctl_args *)args));
1745 		break;
1746 
1747 	case LINUX_KDSETLED:
1748 		args->cmd = KDSETLED;
1749 		error = (ioctl(td, (struct ioctl_args *)args));
1750 		break;
1751 
1752 	case LINUX_KDSETMODE:
1753 		args->cmd = KDSETMODE;
1754 		error = (ioctl(td, (struct ioctl_args *)args));
1755 		break;
1756 
1757 	case LINUX_KDGETMODE:
1758 		args->cmd = KDGETMODE;
1759 		error = (ioctl(td, (struct ioctl_args *)args));
1760 		break;
1761 
1762 	case LINUX_KDGKBMODE:
1763 		args->cmd = KDGKBMODE;
1764 		error = (ioctl(td, (struct ioctl_args *)args));
1765 		break;
1766 
1767 	case LINUX_KDSKBMODE: {
1768 		int kbdmode;
1769 		switch (args->arg) {
1770 		case LINUX_KBD_RAW:
1771 			kbdmode = K_RAW;
1772 			break;
1773 		case LINUX_KBD_XLATE:
1774 			kbdmode = K_XLATE;
1775 			break;
1776 		case LINUX_KBD_MEDIUMRAW:
1777 			kbdmode = K_RAW;
1778 			break;
1779 		default:
1780 			fdrop(fp, td);
1781 			return (EINVAL);
1782 		}
1783 		error = (fo_ioctl(fp, KDSKBMODE, (caddr_t)&kbdmode,
1784 		    td->td_ucred, td));
1785 		break;
1786 	}
1787 
1788 	case LINUX_VT_OPENQRY:
1789 		args->cmd = VT_OPENQRY;
1790 		error = (ioctl(td, (struct ioctl_args *)args));
1791 		break;
1792 
1793 	case LINUX_VT_GETMODE:
1794 		args->cmd = VT_GETMODE;
1795 		error = (ioctl(td, (struct ioctl_args *)args));
1796 		break;
1797 
1798 	case LINUX_VT_SETMODE: {
1799 		struct vt_mode *mode;
1800 		args->cmd = VT_SETMODE;
1801 		mode = (struct vt_mode *)args->arg;
1802 		if (!ISSIGVALID(mode->frsig) && ISSIGVALID(mode->acqsig))
1803 			mode->frsig = mode->acqsig;
1804 		error = (ioctl(td, (struct ioctl_args *)args));
1805 		break;
1806 	}
1807 
1808 	case LINUX_VT_GETSTATE:
1809 		args->cmd = VT_GETACTIVE;
1810 		error = (ioctl(td, (struct ioctl_args *)args));
1811 		break;
1812 
1813 	case LINUX_VT_RELDISP:
1814 		args->cmd = VT_RELDISP;
1815 		error = (ioctl(td, (struct ioctl_args *)args));
1816 		break;
1817 
1818 	case LINUX_VT_ACTIVATE:
1819 		args->cmd = VT_ACTIVATE;
1820 		error = (ioctl(td, (struct ioctl_args *)args));
1821 		break;
1822 
1823 	case LINUX_VT_WAITACTIVE:
1824 		args->cmd = VT_WAITACTIVE;
1825 		error = (ioctl(td, (struct ioctl_args *)args));
1826 		break;
1827 
1828 	default:
1829 		error = ENOIOCTL;
1830 		break;
1831 	}
1832 
1833 	fdrop(fp, td);
1834 	return (error);
1835 }
1836 
1837 /*
1838  * Criteria for interface name translation
1839  */
1840 #define IFP_IS_ETH(ifp) (ifp->if_type == IFT_ETHER)
1841 
1842 /*
1843  * Interface function used by linprocfs (at the time of writing). It's not
1844  * used by the Linuxulator itself.
1845  */
1846 int
1847 linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen)
1848 {
1849 	struct ifnet *ifscan;
1850 	int ethno;
1851 
1852 	/* Short-circuit non ethernet interfaces */
1853 	if (!IFP_IS_ETH(ifp))
1854 		return (snprintf(buffer, buflen, "%s%d", ifp->if_name,
1855 		    ifp->if_unit));
1856 
1857 	/* Determine the (relative) unit number for ethernet interfaces */
1858 	ethno = 0;
1859 	TAILQ_FOREACH(ifscan, &ifnet, if_link) {
1860 		if (ifscan == ifp)
1861 			return (snprintf(buffer, buflen, "eth%d", ethno));
1862 		if (IFP_IS_ETH(ifscan))
1863 			ethno++;
1864 	}
1865 
1866 	return (0);
1867 }
1868 
1869 /*
1870  * Translate a Linux interface name to a FreeBSD interface name,
1871  * and return the associated ifnet structure
1872  * bsdname and lxname need to be least IFNAMSIZ bytes long, but
1873  * can point to the same buffer.
1874  */
1875 
1876 static struct ifnet *
1877 ifname_linux_to_bsd(const char *lxname, char *bsdname)
1878 {
1879 	struct ifnet *ifp;
1880 	int len, unit;
1881 	char *ep;
1882 	int is_eth, index;
1883 
1884 	for (len = 0; len < LINUX_IFNAMSIZ; ++len)
1885 		if (!isalpha(lxname[len]))
1886 			break;
1887 	if (len == 0 || len == LINUX_IFNAMSIZ)
1888 		return (NULL);
1889 	unit = (int)strtoul(lxname + len, &ep, 10);
1890 	if (ep == NULL || ep == lxname + len || ep >= lxname + LINUX_IFNAMSIZ)
1891 		return (NULL);
1892 	index = 0;
1893 	is_eth = (len == 3 && !strncmp(lxname, "eth", len)) ? 1 : 0;
1894 	TAILQ_FOREACH(ifp, &ifnet, if_link) {
1895 		/*
1896 		 * Allow Linux programs to use FreeBSD names. Don't presume
1897 		 * we never have an interface named "eth", so don't make
1898 		 * the test optional based on is_eth.
1899 		 */
1900 		if (ifp->if_unit == unit && ifp->if_name[len] == '\0' &&
1901 		    strncmp(ifp->if_name, lxname, len) == 0)
1902 			break;
1903 		if (is_eth && IFP_IS_ETH(ifp) && unit == index++)
1904 			break;
1905 	}
1906 	if (ifp != NULL)
1907 		snprintf(bsdname, IFNAMSIZ, "%s%d", ifp->if_name, ifp->if_unit);
1908 	return (ifp);
1909 }
1910 
1911 /*
1912  * Implement the SIOCGIFCONF ioctl
1913  */
1914 
1915 static int
1916 linux_ifconf(struct thread *td, struct ifconf *uifc)
1917 {
1918 	struct ifconf ifc;
1919 	struct l_ifreq ifr;
1920 	struct ifnet *ifp;
1921 	struct ifaddr *ifa;
1922 	struct iovec iov;
1923 	struct uio uio;
1924 	int error, ethno;
1925 
1926 	error = copyin(uifc, &ifc, sizeof ifc);
1927 	if (error != 0)
1928 		return (error);
1929 
1930 	/* much easier to use uiomove than keep track ourselves */
1931 	iov.iov_base = ifc.ifc_buf;
1932 	iov.iov_len = ifc.ifc_len;
1933 	uio.uio_iov = &iov;
1934 	uio.uio_iovcnt = 1;
1935 	uio.uio_offset = 0;
1936 	uio.uio_resid = ifc.ifc_len;
1937 	uio.uio_segflg = UIO_USERSPACE;
1938 	uio.uio_rw = UIO_READ;
1939 	uio.uio_td = td;
1940 
1941 	/* Keep track of eth interfaces */
1942 	ethno = 0;
1943 
1944 	/* Return all AF_INET addresses of all interfaces */
1945 	TAILQ_FOREACH(ifp, &ifnet, if_link) {
1946 		if (uio.uio_resid <= 0)
1947 			break;
1948 
1949 		bzero(&ifr, sizeof ifr);
1950 		if (IFP_IS_ETH(ifp))
1951 			snprintf(ifr.ifr_name, LINUX_IFNAMSIZ, "eth%d",
1952 			    ethno++);
1953 		else
1954 			snprintf(ifr.ifr_name, LINUX_IFNAMSIZ, "%s%d",
1955 			    ifp->if_name, ifp->if_unit);
1956 
1957 		/* Walk the address list */
1958 		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
1959 			struct sockaddr *sa = ifa->ifa_addr;
1960 
1961 			if (uio.uio_resid <= 0)
1962 				break;
1963 
1964 			if (sa->sa_family == AF_INET) {
1965 				ifr.ifr_addr.sa_family = LINUX_AF_INET;
1966 				memcpy(ifr.ifr_addr.sa_data, sa->sa_data,
1967 				    sizeof(ifr.ifr_addr.sa_data));
1968 
1969 				error = uiomove((caddr_t)&ifr, sizeof ifr,
1970 				    &uio);
1971 				if (error != 0)
1972 					return (error);
1973 			}
1974 		}
1975 	}
1976 
1977 	ifc.ifc_len -= uio.uio_resid;
1978 	error = copyout(&ifc, uifc, sizeof ifc);
1979 
1980 	return (error);
1981 }
1982 
1983 static int
1984 linux_gifflags(struct thread *td, struct ifnet *ifp, struct l_ifreq *ifr)
1985 {
1986 	l_short flags;
1987 
1988 	flags = ifp->if_flags & 0xffff;
1989 	/* these flags have no Linux equivalent */
1990 	flags &= ~(IFF_SMART|IFF_OACTIVE|IFF_SIMPLEX|
1991 	    IFF_LINK0|IFF_LINK1|IFF_LINK2);
1992 	/* Linux' multicast flag is in a different bit */
1993 	if (flags & IFF_MULTICAST) {
1994 		flags &= ~IFF_MULTICAST;
1995 		flags |= 0x1000;
1996 	}
1997 
1998 	return (copyout(&flags, &ifr->ifr_flags, sizeof flags));
1999 }
2000 
2001 #define ARPHRD_ETHER	1
2002 #define ARPHRD_LOOPBACK	772
2003 
2004 static int
2005 linux_gifhwaddr(struct ifnet *ifp, struct l_ifreq *ifr)
2006 {
2007 	struct ifaddr *ifa;
2008 	struct sockaddr_dl *sdl;
2009 	struct l_sockaddr lsa;
2010 
2011 	if (ifp->if_type == IFT_LOOP) {
2012 		bzero(&lsa, sizeof lsa);
2013 		lsa.sa_family = ARPHRD_LOOPBACK;
2014 		return (copyout(&lsa, &ifr->ifr_hwaddr, sizeof lsa));
2015 	}
2016 
2017 	if (ifp->if_type != IFT_ETHER)
2018 		return (ENOENT);
2019 
2020 	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
2021 		sdl = (struct sockaddr_dl*)ifa->ifa_addr;
2022 		if (sdl != NULL && (sdl->sdl_family == AF_LINK) &&
2023 		    (sdl->sdl_type == IFT_ETHER)) {
2024 			bzero(&lsa, sizeof lsa);
2025 			lsa.sa_family = ARPHRD_ETHER;
2026 			bcopy(LLADDR(sdl), lsa.sa_data, LINUX_IFHWADDRLEN);
2027 			return (copyout(&lsa, &ifr->ifr_hwaddr, sizeof lsa));
2028 		}
2029 	}
2030 
2031 	return (ENOENT);
2032 }
2033 
2034 /*
2035  * Socket related ioctls
2036  */
2037 
2038 static int
2039 linux_ioctl_socket(struct thread *td, struct linux_ioctl_args *args)
2040 {
2041 	char lifname[LINUX_IFNAMSIZ], ifname[IFNAMSIZ];
2042 	struct ifnet *ifp;
2043 	struct file *fp;
2044 	int error, type;
2045 
2046 	KASSERT(LINUX_IFNAMSIZ == IFNAMSIZ,
2047 	    ("%s(): LINUX_IFNAMSIZ != IFNAMSIZ", __func__));
2048 
2049 	ifp = NULL;
2050 	error = 0;
2051 
2052 	if ((error = fget(td, args->fd, &fp)) != 0)
2053 		return (error);
2054 	type = fp->f_type;
2055 	fdrop(fp, td);
2056 	if (type != DTYPE_SOCKET) {
2057 		/* not a socket - probably a tap / vmnet device */
2058 		switch (args->cmd) {
2059 		case LINUX_SIOCGIFADDR:
2060 		case LINUX_SIOCSIFADDR:
2061 		case LINUX_SIOCGIFFLAGS:
2062 			return (linux_ioctl_special(td, args));
2063 		default:
2064 			return (ENOIOCTL);
2065 		}
2066 	}
2067 
2068 	switch (args->cmd & 0xffff) {
2069 
2070 	case LINUX_FIOGETOWN:
2071 	case LINUX_FIOSETOWN:
2072 	case LINUX_SIOCADDMULTI:
2073 	case LINUX_SIOCATMARK:
2074 	case LINUX_SIOCDELMULTI:
2075 	case LINUX_SIOCGIFCONF:
2076 	case LINUX_SIOCGPGRP:
2077 	case LINUX_SIOCSPGRP:
2078 		/* these ioctls don't take an interface name */
2079 #ifdef DEBUG
2080 		printf("%s(): ioctl %d\n", __func__,
2081 		    args->cmd & 0xffff);
2082 #endif
2083 		break;
2084 
2085 	case LINUX_SIOCGIFFLAGS:
2086 	case LINUX_SIOCGIFADDR:
2087 	case LINUX_SIOCSIFADDR:
2088 	case LINUX_SIOCGIFDSTADDR:
2089 	case LINUX_SIOCGIFBRDADDR:
2090 	case LINUX_SIOCGIFNETMASK:
2091 	case LINUX_SIOCSIFNETMASK:
2092 	case LINUX_SIOCGIFMTU:
2093 	case LINUX_SIOCSIFMTU:
2094 	case LINUX_SIOCSIFNAME:
2095 	case LINUX_SIOCGIFHWADDR:
2096 	case LINUX_SIOCSIFHWADDR:
2097 	case LINUX_SIOCDEVPRIVATE:
2098 	case LINUX_SIOCDEVPRIVATE+1:
2099 		/* copy in the interface name and translate it. */
2100 		error = copyin((char *)args->arg, lifname, LINUX_IFNAMSIZ);
2101 		if (error != 0)
2102 			return (error);
2103 #ifdef DEBUG
2104 		printf("%s(): ioctl %d on %.*s\n", __func__,
2105 		    args->cmd & 0xffff, LINUX_IFNAMSIZ, lifname);
2106 #endif
2107 		ifp = ifname_linux_to_bsd(lifname, ifname);
2108 		if (ifp == NULL)
2109 			return (EINVAL);
2110 		/*
2111 		 * We need to copy it back out in case we pass the
2112 		 * request on to our native ioctl(), which will expect
2113 		 * the ifreq to be in user space and have the correct
2114 		 * interface name.
2115 		 */
2116 		error = copyout(ifname, (char *)args->arg, IFNAMSIZ);
2117 		if (error != 0)
2118 			return (error);
2119 #ifdef DEBUG
2120 		printf("%s(): %s translated to %s\n", __func__,
2121 		    lifname, ifname);
2122 #endif
2123 		break;
2124 
2125 	default:
2126 		return (ENOIOCTL);
2127 	}
2128 
2129 	switch (args->cmd & 0xffff) {
2130 
2131 	case LINUX_FIOSETOWN:
2132 		args->cmd = FIOSETOWN;
2133 		error = ioctl(td, (struct ioctl_args *)args);
2134 		break;
2135 
2136 	case LINUX_SIOCSPGRP:
2137 		args->cmd = SIOCSPGRP;
2138 		error = ioctl(td, (struct ioctl_args *)args);
2139 		break;
2140 
2141 	case LINUX_FIOGETOWN:
2142 		args->cmd = FIOGETOWN;
2143 		error = ioctl(td, (struct ioctl_args *)args);
2144 		break;
2145 
2146 	case LINUX_SIOCGPGRP:
2147 		args->cmd = SIOCGPGRP;
2148 		error = ioctl(td, (struct ioctl_args *)args);
2149 		break;
2150 
2151 	case LINUX_SIOCATMARK:
2152 		args->cmd = SIOCATMARK;
2153 		error = ioctl(td, (struct ioctl_args *)args);
2154 		break;
2155 
2156 	/* LINUX_SIOCGSTAMP */
2157 
2158 	case LINUX_SIOCGIFCONF:
2159 		error = linux_ifconf(td, (struct ifconf *)args->arg);
2160 		break;
2161 
2162 	case LINUX_SIOCGIFFLAGS:
2163 		args->cmd = SIOCGIFFLAGS;
2164 		error = linux_gifflags(td, ifp, (struct l_ifreq *)args->arg);
2165 		break;
2166 
2167 	case LINUX_SIOCGIFADDR:
2168 		args->cmd = OSIOCGIFADDR;
2169 		error = ioctl(td, (struct ioctl_args *)args);
2170 		break;
2171 
2172 	case LINUX_SIOCSIFADDR:
2173 		/* XXX probably doesn't work, included for completeness */
2174 		args->cmd = SIOCSIFADDR;
2175 		error = ioctl(td, (struct ioctl_args *)args);
2176 		break;
2177 
2178 	case LINUX_SIOCGIFDSTADDR:
2179 		args->cmd = OSIOCGIFDSTADDR;
2180 		error = ioctl(td, (struct ioctl_args *)args);
2181 		break;
2182 
2183 	case LINUX_SIOCGIFBRDADDR:
2184 		args->cmd = OSIOCGIFBRDADDR;
2185 		error = ioctl(td, (struct ioctl_args *)args);
2186 		break;
2187 
2188 	case LINUX_SIOCGIFNETMASK:
2189 		args->cmd = OSIOCGIFNETMASK;
2190 		error = ioctl(td, (struct ioctl_args *)args);
2191 		break;
2192 
2193 	case LINUX_SIOCSIFNETMASK:
2194 		error = ENOIOCTL;
2195 		break;
2196 
2197 	case LINUX_SIOCGIFMTU:
2198 		args->cmd = SIOCGIFMTU;
2199 		error = ioctl(td, (struct ioctl_args *)args);
2200 		break;
2201 
2202 	case LINUX_SIOCSIFMTU:
2203 		args->cmd = SIOCSIFMTU;
2204 		error = ioctl(td, (struct ioctl_args *)args);
2205 		break;
2206 
2207 	case LINUX_SIOCSIFNAME:
2208 		error = ENOIOCTL;
2209 		break;
2210 
2211 	case LINUX_SIOCGIFHWADDR:
2212 		error = linux_gifhwaddr(ifp, (struct l_ifreq *)args->arg);
2213 		break;
2214 
2215 	case LINUX_SIOCSIFHWADDR:
2216 		error = ENOIOCTL;
2217 		break;
2218 
2219 	case LINUX_SIOCADDMULTI:
2220 		args->cmd = SIOCADDMULTI;
2221 		error = ioctl(td, (struct ioctl_args *)args);
2222 		break;
2223 
2224 	case LINUX_SIOCDELMULTI:
2225 		args->cmd = SIOCDELMULTI;
2226 		error = ioctl(td, (struct ioctl_args *)args);
2227 		break;
2228 
2229 	/*
2230 	 * XXX This is slightly bogus, but these ioctls are currently
2231 	 * XXX only used by the aironet (if_an) network driver.
2232 	 */
2233 	case LINUX_SIOCDEVPRIVATE:
2234 		args->cmd = SIOCGPRIVATE_0;
2235 		error = ioctl(td, (struct ioctl_args *)args);
2236 		break;
2237 
2238 	case LINUX_SIOCDEVPRIVATE+1:
2239 		args->cmd = SIOCGPRIVATE_1;
2240 		error = ioctl(td, (struct ioctl_args *)args);
2241 		break;
2242 	}
2243 
2244 	if (ifp != NULL)
2245 		/* restore the original interface name */
2246 		copyout(lifname, (char *)args->arg, LINUX_IFNAMSIZ);
2247 
2248 #ifdef DEBUG
2249 	printf("%s(): returning %d\n", __func__, error);
2250 #endif
2251 	return (error);
2252 }
2253 
2254 /*
2255  * Device private ioctl handler
2256  */
2257 static int
2258 linux_ioctl_private(struct thread *td, struct linux_ioctl_args *args)
2259 {
2260 	struct file *fp;
2261 	int error, type;
2262 
2263 	if ((error = fget(td, args->fd, &fp)) != 0)
2264 		return (error);
2265 	type = fp->f_type;
2266 	fdrop(fp, td);
2267 	if (type == DTYPE_SOCKET)
2268 		return (linux_ioctl_socket(td, args));
2269 	return (ENOIOCTL);
2270 }
2271 
2272 /*
2273  * Special ioctl handler
2274  */
2275 static int
2276 linux_ioctl_special(struct thread *td, struct linux_ioctl_args *args)
2277 {
2278 	int error;
2279 
2280 	switch (args->cmd) {
2281 	case LINUX_SIOCGIFADDR:
2282 		args->cmd = SIOCGIFADDR;
2283 		error = ioctl(td, (struct ioctl_args *)args);
2284 		break;
2285 	case LINUX_SIOCSIFADDR:
2286 		args->cmd = SIOCSIFADDR;
2287 		error = ioctl(td, (struct ioctl_args *)args);
2288 		break;
2289 	case LINUX_SIOCGIFFLAGS:
2290 		args->cmd = SIOCGIFFLAGS;
2291 		error = ioctl(td, (struct ioctl_args *)args);
2292 		break;
2293 	default:
2294 		error = ENOIOCTL;
2295 	}
2296 
2297 	return (error);
2298 }
2299 
2300 /*
2301  * main ioctl syscall function
2302  */
2303 
2304 int
2305 linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
2306 {
2307 	struct file *fp;
2308 	struct handler_element *he;
2309 	int error, cmd;
2310 
2311 #ifdef DEBUG
2312 	if (ldebug(ioctl))
2313 		printf(ARGS(ioctl, "%d, %04lx, *"), args->fd,
2314 		    (unsigned long)args->cmd);
2315 #endif
2316 
2317 	if ((error = fget(td, args->fd, &fp)) != 0)
2318 		return (error);
2319 	if ((fp->f_flag & (FREAD|FWRITE)) == 0) {
2320 		fdrop(fp, td);
2321 		return (EBADF);
2322 	}
2323 
2324 	/* Iterate over the ioctl handlers */
2325 	cmd = args->cmd & 0xffff;
2326 	TAILQ_FOREACH(he, &handlers, list) {
2327 		if (cmd >= he->low && cmd <= he->high) {
2328 			error = (*he->func)(td, args);
2329 			if (error != ENOIOCTL) {
2330 				fdrop(fp, td);
2331 				return (error);
2332 			}
2333 		}
2334 	}
2335 	fdrop(fp, td);
2336 
2337 	printf("linux: 'ioctl' fd=%d, cmd=0x%x ('%c',%d) not implemented\n",
2338 	    args->fd, (int)(args->cmd & 0xffff),
2339 	    (int)(args->cmd & 0xff00) >> 8, (int)(args->cmd & 0xff));
2340 
2341 	return (EINVAL);
2342 }
2343 
2344 int
2345 linux_ioctl_register_handler(struct linux_ioctl_handler *h)
2346 {
2347 	struct handler_element *he, *cur;
2348 
2349 	if (h == NULL || h->func == NULL)
2350 		return (EINVAL);
2351 
2352 	/*
2353 	 * Reuse the element if the handler is already on the list, otherwise
2354 	 * create a new element.
2355 	 */
2356 	TAILQ_FOREACH(he, &handlers, list) {
2357 		if (he->func == h->func)
2358 			break;
2359 	}
2360 	if (he == NULL) {
2361 		MALLOC(he, struct handler_element *, sizeof(*he),
2362 		    M_LINUX, M_WAITOK);
2363 		he->func = h->func;
2364 	} else
2365 		TAILQ_REMOVE(&handlers, he, list);
2366 
2367 	/* Initialize range information. */
2368 	he->low = h->low;
2369 	he->high = h->high;
2370 	he->span = h->high - h->low + 1;
2371 
2372 	/* Add the element to the list, sorted on span. */
2373 	TAILQ_FOREACH(cur, &handlers, list) {
2374 		if (cur->span > he->span) {
2375 			TAILQ_INSERT_BEFORE(cur, he, list);
2376 			return (0);
2377 		}
2378 	}
2379 	TAILQ_INSERT_TAIL(&handlers, he, list);
2380 
2381 	return (0);
2382 }
2383 
2384 int
2385 linux_ioctl_unregister_handler(struct linux_ioctl_handler *h)
2386 {
2387 	struct handler_element *he;
2388 
2389 	if (h == NULL || h->func == NULL)
2390 		return (EINVAL);
2391 
2392 	TAILQ_FOREACH(he, &handlers, list) {
2393 		if (he->func == h->func) {
2394 			TAILQ_REMOVE(&handlers, he, list);
2395 			FREE(he, M_LINUX);
2396 			return (0);
2397 		}
2398 	}
2399 
2400 	return (EINVAL);
2401 }
2402