linux_ioctl.c revision 268139
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
29#include "opt_compat.h"
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: stable/10/sys/compat/linux/linux_ioctl.c 268139 2014-07-02 10:16:12Z mav $");
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/sysproto.h>
37#include <sys/capability.h>
38#include <sys/cdio.h>
39#include <sys/dvdio.h>
40#include <sys/conf.h>
41#include <sys/disk.h>
42#include <sys/consio.h>
43#include <sys/ctype.h>
44#include <sys/fcntl.h>
45#include <sys/file.h>
46#include <sys/filedesc.h>
47#include <sys/filio.h>
48#include <sys/jail.h>
49#include <sys/kbio.h>
50#include <sys/kernel.h>
51#include <sys/linker_set.h>
52#include <sys/lock.h>
53#include <sys/malloc.h>
54#include <sys/proc.h>
55#include <sys/sbuf.h>
56#include <sys/socket.h>
57#include <sys/sockio.h>
58#include <sys/soundcard.h>
59#include <sys/stdint.h>
60#include <sys/sx.h>
61#include <sys/sysctl.h>
62#include <sys/tty.h>
63#include <sys/uio.h>
64#include <sys/types.h>
65#include <sys/mman.h>
66#include <sys/resourcevar.h>
67
68#include <net/if.h>
69#include <net/if_dl.h>
70#include <net/if_types.h>
71#include <net/vnet.h>
72
73#include <dev/usb/usb_ioctl.h>
74
75#ifdef COMPAT_LINUX32
76#include <machine/../linux32/linux.h>
77#include <machine/../linux32/linux32_proto.h>
78#else
79#include <machine/../linux/linux.h>
80#include <machine/../linux/linux_proto.h>
81#endif
82
83#include <compat/linux/linux_ioctl.h>
84#include <compat/linux/linux_mib.h>
85#include <compat/linux/linux_socket.h>
86#include <compat/linux/linux_util.h>
87
88#include <contrib/v4l/videodev.h>
89#include <compat/linux/linux_videodev_compat.h>
90
91#include <contrib/v4l/videodev2.h>
92#include <compat/linux/linux_videodev2_compat.h>
93
94#include <cam/scsi/scsi_sg.h>
95
96CTASSERT(LINUX_IFNAMSIZ == IFNAMSIZ);
97
98FEATURE(linuxulator_v4l, "V4L ioctl wrapper support in the linuxulator");
99FEATURE(linuxulator_v4l2, "V4L2 ioctl wrapper support in the linuxulator");
100
101static linux_ioctl_function_t linux_ioctl_cdrom;
102static linux_ioctl_function_t linux_ioctl_vfat;
103static linux_ioctl_function_t linux_ioctl_console;
104static linux_ioctl_function_t linux_ioctl_hdio;
105static linux_ioctl_function_t linux_ioctl_disk;
106static linux_ioctl_function_t linux_ioctl_socket;
107static linux_ioctl_function_t linux_ioctl_sound;
108static linux_ioctl_function_t linux_ioctl_termio;
109static linux_ioctl_function_t linux_ioctl_private;
110static linux_ioctl_function_t linux_ioctl_drm;
111static linux_ioctl_function_t linux_ioctl_sg;
112static linux_ioctl_function_t linux_ioctl_v4l;
113static linux_ioctl_function_t linux_ioctl_v4l2;
114static linux_ioctl_function_t linux_ioctl_special;
115static linux_ioctl_function_t linux_ioctl_fbsd_usb;
116
117static struct linux_ioctl_handler cdrom_handler =
118{ linux_ioctl_cdrom, LINUX_IOCTL_CDROM_MIN, LINUX_IOCTL_CDROM_MAX };
119static struct linux_ioctl_handler vfat_handler =
120{ linux_ioctl_vfat, LINUX_IOCTL_VFAT_MIN, LINUX_IOCTL_VFAT_MAX };
121static struct linux_ioctl_handler console_handler =
122{ linux_ioctl_console, LINUX_IOCTL_CONSOLE_MIN, LINUX_IOCTL_CONSOLE_MAX };
123static struct linux_ioctl_handler hdio_handler =
124{ linux_ioctl_hdio, LINUX_IOCTL_HDIO_MIN, LINUX_IOCTL_HDIO_MAX };
125static struct linux_ioctl_handler disk_handler =
126{ linux_ioctl_disk, LINUX_IOCTL_DISK_MIN, LINUX_IOCTL_DISK_MAX };
127static struct linux_ioctl_handler socket_handler =
128{ linux_ioctl_socket, LINUX_IOCTL_SOCKET_MIN, LINUX_IOCTL_SOCKET_MAX };
129static struct linux_ioctl_handler sound_handler =
130{ linux_ioctl_sound, LINUX_IOCTL_SOUND_MIN, LINUX_IOCTL_SOUND_MAX };
131static struct linux_ioctl_handler termio_handler =
132{ linux_ioctl_termio, LINUX_IOCTL_TERMIO_MIN, LINUX_IOCTL_TERMIO_MAX };
133static struct linux_ioctl_handler private_handler =
134{ linux_ioctl_private, LINUX_IOCTL_PRIVATE_MIN, LINUX_IOCTL_PRIVATE_MAX };
135static struct linux_ioctl_handler drm_handler =
136{ linux_ioctl_drm, LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX };
137static struct linux_ioctl_handler sg_handler =
138{ linux_ioctl_sg, LINUX_IOCTL_SG_MIN, LINUX_IOCTL_SG_MAX };
139static struct linux_ioctl_handler video_handler =
140{ linux_ioctl_v4l, LINUX_IOCTL_VIDEO_MIN, LINUX_IOCTL_VIDEO_MAX };
141static struct linux_ioctl_handler video2_handler =
142{ linux_ioctl_v4l2, LINUX_IOCTL_VIDEO2_MIN, LINUX_IOCTL_VIDEO2_MAX };
143static struct linux_ioctl_handler fbsd_usb =
144{ linux_ioctl_fbsd_usb, FBSD_LUSB_MIN, FBSD_LUSB_MAX };
145
146DATA_SET(linux_ioctl_handler_set, cdrom_handler);
147DATA_SET(linux_ioctl_handler_set, vfat_handler);
148DATA_SET(linux_ioctl_handler_set, console_handler);
149DATA_SET(linux_ioctl_handler_set, hdio_handler);
150DATA_SET(linux_ioctl_handler_set, disk_handler);
151DATA_SET(linux_ioctl_handler_set, socket_handler);
152DATA_SET(linux_ioctl_handler_set, sound_handler);
153DATA_SET(linux_ioctl_handler_set, termio_handler);
154DATA_SET(linux_ioctl_handler_set, private_handler);
155DATA_SET(linux_ioctl_handler_set, drm_handler);
156DATA_SET(linux_ioctl_handler_set, sg_handler);
157DATA_SET(linux_ioctl_handler_set, video_handler);
158DATA_SET(linux_ioctl_handler_set, video2_handler);
159DATA_SET(linux_ioctl_handler_set, fbsd_usb);
160
161struct handler_element
162{
163	TAILQ_ENTRY(handler_element) list;
164	int	(*func)(struct thread *, struct linux_ioctl_args *);
165	int	low, high, span;
166};
167
168static TAILQ_HEAD(, handler_element) handlers =
169    TAILQ_HEAD_INITIALIZER(handlers);
170static struct sx linux_ioctl_sx;
171SX_SYSINIT(linux_ioctl, &linux_ioctl_sx, "linux ioctl handlers");
172
173/*
174 * hdio related ioctls for VMWare support
175 */
176
177struct linux_hd_geometry {
178	u_int8_t	heads;
179	u_int8_t	sectors;
180	u_int16_t	cylinders;
181	u_int32_t	start;
182};
183
184struct linux_hd_big_geometry {
185	u_int8_t	heads;
186	u_int8_t	sectors;
187	u_int32_t	cylinders;
188	u_int32_t	start;
189};
190
191static int
192linux_ioctl_hdio(struct thread *td, struct linux_ioctl_args *args)
193{
194	cap_rights_t rights;
195	struct file *fp;
196	int error;
197	u_int sectorsize, fwcylinders, fwheads, fwsectors;
198	off_t mediasize, bytespercyl;
199
200	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
201	if (error != 0)
202		return (error);
203	switch (args->cmd & 0xffff) {
204	case LINUX_HDIO_GET_GEO:
205	case LINUX_HDIO_GET_GEO_BIG:
206		error = fo_ioctl(fp, DIOCGMEDIASIZE,
207			(caddr_t)&mediasize, td->td_ucred, td);
208		if (!error)
209			error = fo_ioctl(fp, DIOCGSECTORSIZE,
210				(caddr_t)&sectorsize, td->td_ucred, td);
211		if (!error)
212			error = fo_ioctl(fp, DIOCGFWHEADS,
213				(caddr_t)&fwheads, td->td_ucred, td);
214		if (!error)
215			error = fo_ioctl(fp, DIOCGFWSECTORS,
216				(caddr_t)&fwsectors, td->td_ucred, td);
217		/*
218		 * XXX: DIOCGFIRSTOFFSET is not yet implemented, so
219		 * so pretend that GEOM always says 0. This is NOT VALID
220		 * for slices or partitions, only the per-disk raw devices.
221		 */
222
223		fdrop(fp, td);
224		if (error)
225			return (error);
226		/*
227		 * 1. Calculate the number of bytes in a cylinder,
228		 *    given the firmware's notion of heads and sectors
229		 *    per cylinder.
230		 * 2. Calculate the number of cylinders, given the total
231		 *    size of the media.
232		 * All internal calculations should have 64-bit precision.
233		 */
234		bytespercyl = (off_t) sectorsize * fwheads * fwsectors;
235		fwcylinders = mediasize / bytespercyl;
236#if defined(DEBUG)
237		linux_msg(td, "HDIO_GET_GEO: mediasize %jd, c/h/s %d/%d/%d, "
238			  "bpc %jd",
239			  (intmax_t)mediasize, fwcylinders, fwheads, fwsectors,
240			  (intmax_t)bytespercyl);
241#endif
242		if ((args->cmd & 0xffff) == LINUX_HDIO_GET_GEO) {
243			struct linux_hd_geometry hdg;
244
245			hdg.cylinders = fwcylinders;
246			hdg.heads = fwheads;
247			hdg.sectors = fwsectors;
248			hdg.start = 0;
249			error = copyout(&hdg, (void *)args->arg, sizeof(hdg));
250		} else if ((args->cmd & 0xffff) == LINUX_HDIO_GET_GEO_BIG) {
251			struct linux_hd_big_geometry hdbg;
252
253			hdbg.cylinders = fwcylinders;
254			hdbg.heads = fwheads;
255			hdbg.sectors = fwsectors;
256			hdbg.start = 0;
257			error = copyout(&hdbg, (void *)args->arg, sizeof(hdbg));
258		}
259		return (error);
260		break;
261	default:
262		/* XXX */
263		linux_msg(td,
264			"ioctl fd=%d, cmd=0x%x ('%c',%d) is not implemented",
265			args->fd, (int)(args->cmd & 0xffff),
266			(int)(args->cmd & 0xff00) >> 8,
267			(int)(args->cmd & 0xff));
268		break;
269	}
270	fdrop(fp, td);
271	return (ENOIOCTL);
272}
273
274static int
275linux_ioctl_disk(struct thread *td, struct linux_ioctl_args *args)
276{
277	cap_rights_t rights;
278	struct file *fp;
279	int error;
280	u_int sectorsize;
281	off_t mediasize;
282
283	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
284	if (error != 0)
285		return (error);
286	switch (args->cmd & 0xffff) {
287	case LINUX_BLKGETSIZE:
288		error = fo_ioctl(fp, DIOCGSECTORSIZE,
289		    (caddr_t)&sectorsize, td->td_ucred, td);
290		if (!error)
291			error = fo_ioctl(fp, DIOCGMEDIASIZE,
292			    (caddr_t)&mediasize, td->td_ucred, td);
293		fdrop(fp, td);
294		if (error)
295			return (error);
296		sectorsize = mediasize / sectorsize;
297		/*
298		 * XXX: How do we know we return the right size of integer ?
299		 */
300		return (copyout(&sectorsize, (void *)args->arg,
301		    sizeof(sectorsize)));
302		break;
303	}
304	fdrop(fp, td);
305	return (ENOIOCTL);
306}
307
308/*
309 * termio related ioctls
310 */
311
312struct linux_termio {
313	unsigned short c_iflag;
314	unsigned short c_oflag;
315	unsigned short c_cflag;
316	unsigned short c_lflag;
317	unsigned char c_line;
318	unsigned char c_cc[LINUX_NCC];
319};
320
321struct linux_termios {
322	unsigned int c_iflag;
323	unsigned int c_oflag;
324	unsigned int c_cflag;
325	unsigned int c_lflag;
326	unsigned char c_line;
327	unsigned char c_cc[LINUX_NCCS];
328};
329
330struct linux_winsize {
331	unsigned short ws_row, ws_col;
332	unsigned short ws_xpixel, ws_ypixel;
333};
334
335struct speedtab {
336	int sp_speed;			/* Speed. */
337	int sp_code;			/* Code. */
338};
339
340static struct speedtab sptab[] = {
341	{ B0, LINUX_B0 }, { B50, LINUX_B50 },
342	{ B75, LINUX_B75 }, { B110, LINUX_B110 },
343	{ B134, LINUX_B134 }, { B150, LINUX_B150 },
344	{ B200, LINUX_B200 }, { B300, LINUX_B300 },
345	{ B600, LINUX_B600 }, { B1200, LINUX_B1200 },
346	{ B1800, LINUX_B1800 }, { B2400, LINUX_B2400 },
347	{ B4800, LINUX_B4800 }, { B9600, LINUX_B9600 },
348	{ B19200, LINUX_B19200 }, { B38400, LINUX_B38400 },
349	{ B57600, LINUX_B57600 }, { B115200, LINUX_B115200 },
350	{-1, -1 }
351};
352
353struct linux_serial_struct {
354	int	type;
355	int	line;
356	int	port;
357	int	irq;
358	int	flags;
359	int	xmit_fifo_size;
360	int	custom_divisor;
361	int	baud_base;
362	unsigned short close_delay;
363	char	reserved_char[2];
364	int	hub6;
365	unsigned short closing_wait;
366	unsigned short closing_wait2;
367	int	reserved[4];
368};
369
370static int
371linux_to_bsd_speed(int code, struct speedtab *table)
372{
373	for ( ; table->sp_code != -1; table++)
374		if (table->sp_code == code)
375			return (table->sp_speed);
376	return -1;
377}
378
379static int
380bsd_to_linux_speed(int speed, struct speedtab *table)
381{
382	for ( ; table->sp_speed != -1; table++)
383		if (table->sp_speed == speed)
384			return (table->sp_code);
385	return -1;
386}
387
388static void
389bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
390{
391	int i;
392
393#ifdef DEBUG
394	if (ldebug(ioctl)) {
395		printf("LINUX: BSD termios structure (input):\n");
396		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
397		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
398		    bios->c_ispeed, bios->c_ospeed);
399		printf("c_cc ");
400		for (i=0; i<NCCS; i++)
401			printf("%02x ", bios->c_cc[i]);
402		printf("\n");
403	}
404#endif
405
406	lios->c_iflag = 0;
407	if (bios->c_iflag & IGNBRK)
408		lios->c_iflag |= LINUX_IGNBRK;
409	if (bios->c_iflag & BRKINT)
410		lios->c_iflag |= LINUX_BRKINT;
411	if (bios->c_iflag & IGNPAR)
412		lios->c_iflag |= LINUX_IGNPAR;
413	if (bios->c_iflag & PARMRK)
414		lios->c_iflag |= LINUX_PARMRK;
415	if (bios->c_iflag & INPCK)
416		lios->c_iflag |= LINUX_INPCK;
417	if (bios->c_iflag & ISTRIP)
418		lios->c_iflag |= LINUX_ISTRIP;
419	if (bios->c_iflag & INLCR)
420		lios->c_iflag |= LINUX_INLCR;
421	if (bios->c_iflag & IGNCR)
422		lios->c_iflag |= LINUX_IGNCR;
423	if (bios->c_iflag & ICRNL)
424		lios->c_iflag |= LINUX_ICRNL;
425	if (bios->c_iflag & IXON)
426		lios->c_iflag |= LINUX_IXON;
427	if (bios->c_iflag & IXANY)
428		lios->c_iflag |= LINUX_IXANY;
429	if (bios->c_iflag & IXOFF)
430		lios->c_iflag |= LINUX_IXOFF;
431	if (bios->c_iflag & IMAXBEL)
432		lios->c_iflag |= LINUX_IMAXBEL;
433
434	lios->c_oflag = 0;
435	if (bios->c_oflag & OPOST)
436		lios->c_oflag |= LINUX_OPOST;
437	if (bios->c_oflag & ONLCR)
438		lios->c_oflag |= LINUX_ONLCR;
439	if (bios->c_oflag & TAB3)
440		lios->c_oflag |= LINUX_XTABS;
441
442	lios->c_cflag = bsd_to_linux_speed(bios->c_ispeed, sptab);
443	lios->c_cflag |= (bios->c_cflag & CSIZE) >> 4;
444	if (bios->c_cflag & CSTOPB)
445		lios->c_cflag |= LINUX_CSTOPB;
446	if (bios->c_cflag & CREAD)
447		lios->c_cflag |= LINUX_CREAD;
448	if (bios->c_cflag & PARENB)
449		lios->c_cflag |= LINUX_PARENB;
450	if (bios->c_cflag & PARODD)
451		lios->c_cflag |= LINUX_PARODD;
452	if (bios->c_cflag & HUPCL)
453		lios->c_cflag |= LINUX_HUPCL;
454	if (bios->c_cflag & CLOCAL)
455		lios->c_cflag |= LINUX_CLOCAL;
456	if (bios->c_cflag & CRTSCTS)
457		lios->c_cflag |= LINUX_CRTSCTS;
458
459	lios->c_lflag = 0;
460	if (bios->c_lflag & ISIG)
461		lios->c_lflag |= LINUX_ISIG;
462	if (bios->c_lflag & ICANON)
463		lios->c_lflag |= LINUX_ICANON;
464	if (bios->c_lflag & ECHO)
465		lios->c_lflag |= LINUX_ECHO;
466	if (bios->c_lflag & ECHOE)
467		lios->c_lflag |= LINUX_ECHOE;
468	if (bios->c_lflag & ECHOK)
469		lios->c_lflag |= LINUX_ECHOK;
470	if (bios->c_lflag & ECHONL)
471		lios->c_lflag |= LINUX_ECHONL;
472	if (bios->c_lflag & NOFLSH)
473		lios->c_lflag |= LINUX_NOFLSH;
474	if (bios->c_lflag & TOSTOP)
475		lios->c_lflag |= LINUX_TOSTOP;
476	if (bios->c_lflag & ECHOCTL)
477		lios->c_lflag |= LINUX_ECHOCTL;
478	if (bios->c_lflag & ECHOPRT)
479		lios->c_lflag |= LINUX_ECHOPRT;
480	if (bios->c_lflag & ECHOKE)
481		lios->c_lflag |= LINUX_ECHOKE;
482	if (bios->c_lflag & FLUSHO)
483		lios->c_lflag |= LINUX_FLUSHO;
484	if (bios->c_lflag & PENDIN)
485		lios->c_lflag |= LINUX_PENDIN;
486	if (bios->c_lflag & IEXTEN)
487		lios->c_lflag |= LINUX_IEXTEN;
488
489	for (i=0; i<LINUX_NCCS; i++)
490		lios->c_cc[i] = LINUX_POSIX_VDISABLE;
491	lios->c_cc[LINUX_VINTR] = bios->c_cc[VINTR];
492	lios->c_cc[LINUX_VQUIT] = bios->c_cc[VQUIT];
493	lios->c_cc[LINUX_VERASE] = bios->c_cc[VERASE];
494	lios->c_cc[LINUX_VKILL] = bios->c_cc[VKILL];
495	lios->c_cc[LINUX_VEOF] = bios->c_cc[VEOF];
496	lios->c_cc[LINUX_VEOL] = bios->c_cc[VEOL];
497	lios->c_cc[LINUX_VMIN] = bios->c_cc[VMIN];
498	lios->c_cc[LINUX_VTIME] = bios->c_cc[VTIME];
499	lios->c_cc[LINUX_VEOL2] = bios->c_cc[VEOL2];
500	lios->c_cc[LINUX_VSUSP] = bios->c_cc[VSUSP];
501	lios->c_cc[LINUX_VSTART] = bios->c_cc[VSTART];
502	lios->c_cc[LINUX_VSTOP] = bios->c_cc[VSTOP];
503	lios->c_cc[LINUX_VREPRINT] = bios->c_cc[VREPRINT];
504	lios->c_cc[LINUX_VDISCARD] = bios->c_cc[VDISCARD];
505	lios->c_cc[LINUX_VWERASE] = bios->c_cc[VWERASE];
506	lios->c_cc[LINUX_VLNEXT] = bios->c_cc[VLNEXT];
507
508	for (i=0; i<LINUX_NCCS; i++) {
509		if (i != LINUX_VMIN && i != LINUX_VTIME &&
510		    lios->c_cc[i] == _POSIX_VDISABLE)
511			lios->c_cc[i] = LINUX_POSIX_VDISABLE;
512	}
513	lios->c_line = 0;
514
515#ifdef DEBUG
516	if (ldebug(ioctl)) {
517		printf("LINUX: LINUX termios structure (output):\n");
518		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
519		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
520		    lios->c_lflag, (int)lios->c_line);
521		printf("c_cc ");
522		for (i=0; i<LINUX_NCCS; i++)
523			printf("%02x ", lios->c_cc[i]);
524		printf("\n");
525	}
526#endif
527}
528
529static void
530linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
531{
532	int i;
533
534#ifdef DEBUG
535	if (ldebug(ioctl)) {
536		printf("LINUX: LINUX termios structure (input):\n");
537		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
538		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
539		    lios->c_lflag, (int)lios->c_line);
540		printf("c_cc ");
541		for (i=0; i<LINUX_NCCS; i++)
542			printf("%02x ", lios->c_cc[i]);
543		printf("\n");
544	}
545#endif
546
547	bios->c_iflag = 0;
548	if (lios->c_iflag & LINUX_IGNBRK)
549		bios->c_iflag |= IGNBRK;
550	if (lios->c_iflag & LINUX_BRKINT)
551		bios->c_iflag |= BRKINT;
552	if (lios->c_iflag & LINUX_IGNPAR)
553		bios->c_iflag |= IGNPAR;
554	if (lios->c_iflag & LINUX_PARMRK)
555		bios->c_iflag |= PARMRK;
556	if (lios->c_iflag & LINUX_INPCK)
557		bios->c_iflag |= INPCK;
558	if (lios->c_iflag & LINUX_ISTRIP)
559		bios->c_iflag |= ISTRIP;
560	if (lios->c_iflag & LINUX_INLCR)
561		bios->c_iflag |= INLCR;
562	if (lios->c_iflag & LINUX_IGNCR)
563		bios->c_iflag |= IGNCR;
564	if (lios->c_iflag & LINUX_ICRNL)
565		bios->c_iflag |= ICRNL;
566	if (lios->c_iflag & LINUX_IXON)
567		bios->c_iflag |= IXON;
568	if (lios->c_iflag & LINUX_IXANY)
569		bios->c_iflag |= IXANY;
570	if (lios->c_iflag & LINUX_IXOFF)
571		bios->c_iflag |= IXOFF;
572	if (lios->c_iflag & LINUX_IMAXBEL)
573		bios->c_iflag |= IMAXBEL;
574
575	bios->c_oflag = 0;
576	if (lios->c_oflag & LINUX_OPOST)
577		bios->c_oflag |= OPOST;
578	if (lios->c_oflag & LINUX_ONLCR)
579		bios->c_oflag |= ONLCR;
580	if (lios->c_oflag & LINUX_XTABS)
581		bios->c_oflag |= TAB3;
582
583	bios->c_cflag = (lios->c_cflag & LINUX_CSIZE) << 4;
584	if (lios->c_cflag & LINUX_CSTOPB)
585		bios->c_cflag |= CSTOPB;
586	if (lios->c_cflag & LINUX_CREAD)
587		bios->c_cflag |= CREAD;
588	if (lios->c_cflag & LINUX_PARENB)
589		bios->c_cflag |= PARENB;
590	if (lios->c_cflag & LINUX_PARODD)
591		bios->c_cflag |= PARODD;
592	if (lios->c_cflag & LINUX_HUPCL)
593		bios->c_cflag |= HUPCL;
594	if (lios->c_cflag & LINUX_CLOCAL)
595		bios->c_cflag |= CLOCAL;
596	if (lios->c_cflag & LINUX_CRTSCTS)
597		bios->c_cflag |= CRTSCTS;
598
599	bios->c_lflag = 0;
600	if (lios->c_lflag & LINUX_ISIG)
601		bios->c_lflag |= ISIG;
602	if (lios->c_lflag & LINUX_ICANON)
603		bios->c_lflag |= ICANON;
604	if (lios->c_lflag & LINUX_ECHO)
605		bios->c_lflag |= ECHO;
606	if (lios->c_lflag & LINUX_ECHOE)
607		bios->c_lflag |= ECHOE;
608	if (lios->c_lflag & LINUX_ECHOK)
609		bios->c_lflag |= ECHOK;
610	if (lios->c_lflag & LINUX_ECHONL)
611		bios->c_lflag |= ECHONL;
612	if (lios->c_lflag & LINUX_NOFLSH)
613		bios->c_lflag |= NOFLSH;
614	if (lios->c_lflag & LINUX_TOSTOP)
615		bios->c_lflag |= TOSTOP;
616	if (lios->c_lflag & LINUX_ECHOCTL)
617		bios->c_lflag |= ECHOCTL;
618	if (lios->c_lflag & LINUX_ECHOPRT)
619		bios->c_lflag |= ECHOPRT;
620	if (lios->c_lflag & LINUX_ECHOKE)
621		bios->c_lflag |= ECHOKE;
622	if (lios->c_lflag & LINUX_FLUSHO)
623		bios->c_lflag |= FLUSHO;
624	if (lios->c_lflag & LINUX_PENDIN)
625		bios->c_lflag |= PENDIN;
626	if (lios->c_lflag & LINUX_IEXTEN)
627		bios->c_lflag |= IEXTEN;
628
629	for (i=0; i<NCCS; i++)
630		bios->c_cc[i] = _POSIX_VDISABLE;
631	bios->c_cc[VINTR] = lios->c_cc[LINUX_VINTR];
632	bios->c_cc[VQUIT] = lios->c_cc[LINUX_VQUIT];
633	bios->c_cc[VERASE] = lios->c_cc[LINUX_VERASE];
634	bios->c_cc[VKILL] = lios->c_cc[LINUX_VKILL];
635	bios->c_cc[VEOF] = lios->c_cc[LINUX_VEOF];
636	bios->c_cc[VEOL] = lios->c_cc[LINUX_VEOL];
637	bios->c_cc[VMIN] = lios->c_cc[LINUX_VMIN];
638	bios->c_cc[VTIME] = lios->c_cc[LINUX_VTIME];
639	bios->c_cc[VEOL2] = lios->c_cc[LINUX_VEOL2];
640	bios->c_cc[VSUSP] = lios->c_cc[LINUX_VSUSP];
641	bios->c_cc[VSTART] = lios->c_cc[LINUX_VSTART];
642	bios->c_cc[VSTOP] = lios->c_cc[LINUX_VSTOP];
643	bios->c_cc[VREPRINT] = lios->c_cc[LINUX_VREPRINT];
644	bios->c_cc[VDISCARD] = lios->c_cc[LINUX_VDISCARD];
645	bios->c_cc[VWERASE] = lios->c_cc[LINUX_VWERASE];
646	bios->c_cc[VLNEXT] = lios->c_cc[LINUX_VLNEXT];
647
648	for (i=0; i<NCCS; i++) {
649		if (i != VMIN && i != VTIME &&
650		    bios->c_cc[i] == LINUX_POSIX_VDISABLE)
651			bios->c_cc[i] = _POSIX_VDISABLE;
652	}
653
654	bios->c_ispeed = bios->c_ospeed =
655	    linux_to_bsd_speed(lios->c_cflag & LINUX_CBAUD, sptab);
656
657#ifdef DEBUG
658	if (ldebug(ioctl)) {
659		printf("LINUX: BSD termios structure (output):\n");
660		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
661		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
662		    bios->c_ispeed, bios->c_ospeed);
663		printf("c_cc ");
664		for (i=0; i<NCCS; i++)
665			printf("%02x ", bios->c_cc[i]);
666		printf("\n");
667	}
668#endif
669}
670
671static void
672bsd_to_linux_termio(struct termios *bios, struct linux_termio *lio)
673{
674	struct linux_termios lios;
675
676	bsd_to_linux_termios(bios, &lios);
677	lio->c_iflag = lios.c_iflag;
678	lio->c_oflag = lios.c_oflag;
679	lio->c_cflag = lios.c_cflag;
680	lio->c_lflag = lios.c_lflag;
681	lio->c_line  = lios.c_line;
682	memcpy(lio->c_cc, lios.c_cc, LINUX_NCC);
683}
684
685static void
686linux_to_bsd_termio(struct linux_termio *lio, struct termios *bios)
687{
688	struct linux_termios lios;
689	int i;
690
691	lios.c_iflag = lio->c_iflag;
692	lios.c_oflag = lio->c_oflag;
693	lios.c_cflag = lio->c_cflag;
694	lios.c_lflag = lio->c_lflag;
695	for (i=LINUX_NCC; i<LINUX_NCCS; i++)
696		lios.c_cc[i] = LINUX_POSIX_VDISABLE;
697	memcpy(lios.c_cc, lio->c_cc, LINUX_NCC);
698	linux_to_bsd_termios(&lios, bios);
699}
700
701static int
702linux_ioctl_termio(struct thread *td, struct linux_ioctl_args *args)
703{
704	struct termios bios;
705	struct linux_termios lios;
706	struct linux_termio lio;
707	cap_rights_t rights;
708	struct file *fp;
709	int error;
710
711	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
712	if (error != 0)
713		return (error);
714
715	switch (args->cmd & 0xffff) {
716
717	case LINUX_TCGETS:
718		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, td->td_ucred,
719		    td);
720		if (error)
721			break;
722		bsd_to_linux_termios(&bios, &lios);
723		error = copyout(&lios, (void *)args->arg, sizeof(lios));
724		break;
725
726	case LINUX_TCSETS:
727		error = copyin((void *)args->arg, &lios, sizeof(lios));
728		if (error)
729			break;
730		linux_to_bsd_termios(&lios, &bios);
731		error = (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, td->td_ucred,
732		    td));
733		break;
734
735	case LINUX_TCSETSW:
736		error = copyin((void *)args->arg, &lios, sizeof(lios));
737		if (error)
738			break;
739		linux_to_bsd_termios(&lios, &bios);
740		error = (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, td->td_ucred,
741		    td));
742		break;
743
744	case LINUX_TCSETSF:
745		error = copyin((void *)args->arg, &lios, sizeof(lios));
746		if (error)
747			break;
748		linux_to_bsd_termios(&lios, &bios);
749		error = (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, td->td_ucred,
750		    td));
751		break;
752
753	case LINUX_TCGETA:
754		error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios, td->td_ucred,
755		    td);
756		if (error)
757			break;
758		bsd_to_linux_termio(&bios, &lio);
759		error = (copyout(&lio, (void *)args->arg, sizeof(lio)));
760		break;
761
762	case LINUX_TCSETA:
763		error = copyin((void *)args->arg, &lio, sizeof(lio));
764		if (error)
765			break;
766		linux_to_bsd_termio(&lio, &bios);
767		error = (fo_ioctl(fp, TIOCSETA, (caddr_t)&bios, td->td_ucred,
768		    td));
769		break;
770
771	case LINUX_TCSETAW:
772		error = copyin((void *)args->arg, &lio, sizeof(lio));
773		if (error)
774			break;
775		linux_to_bsd_termio(&lio, &bios);
776		error = (fo_ioctl(fp, TIOCSETAW, (caddr_t)&bios, td->td_ucred,
777		    td));
778		break;
779
780	case LINUX_TCSETAF:
781		error = copyin((void *)args->arg, &lio, sizeof(lio));
782		if (error)
783			break;
784		linux_to_bsd_termio(&lio, &bios);
785		error = (fo_ioctl(fp, TIOCSETAF, (caddr_t)&bios, td->td_ucred,
786		    td));
787		break;
788
789	/* LINUX_TCSBRK */
790
791	case LINUX_TCXONC: {
792		switch (args->arg) {
793		case LINUX_TCOOFF:
794			args->cmd = TIOCSTOP;
795			break;
796		case LINUX_TCOON:
797			args->cmd = TIOCSTART;
798			break;
799		case LINUX_TCIOFF:
800		case LINUX_TCION: {
801			int c;
802			struct write_args wr;
803			error = fo_ioctl(fp, TIOCGETA, (caddr_t)&bios,
804			    td->td_ucred, td);
805			if (error)
806				break;
807			fdrop(fp, td);
808			c = (args->arg == LINUX_TCIOFF) ? VSTOP : VSTART;
809			c = bios.c_cc[c];
810			if (c != _POSIX_VDISABLE) {
811				wr.fd = args->fd;
812				wr.buf = &c;
813				wr.nbyte = sizeof(c);
814				return (sys_write(td, &wr));
815			} else
816				return (0);
817		}
818		default:
819			fdrop(fp, td);
820			return (EINVAL);
821		}
822		args->arg = 0;
823		error = (sys_ioctl(td, (struct ioctl_args *)args));
824		break;
825	}
826
827	case LINUX_TCFLSH: {
828		int val;
829		switch (args->arg) {
830		case LINUX_TCIFLUSH:
831			val = FREAD;
832			break;
833		case LINUX_TCOFLUSH:
834			val = FWRITE;
835			break;
836		case LINUX_TCIOFLUSH:
837			val = FREAD | FWRITE;
838			break;
839		default:
840			fdrop(fp, td);
841			return (EINVAL);
842		}
843		error = (fo_ioctl(fp,TIOCFLUSH,(caddr_t)&val,td->td_ucred,td));
844		break;
845	}
846
847	case LINUX_TIOCEXCL:
848		args->cmd = TIOCEXCL;
849		error = (sys_ioctl(td, (struct ioctl_args *)args));
850		break;
851
852	case LINUX_TIOCNXCL:
853		args->cmd = TIOCNXCL;
854		error = (sys_ioctl(td, (struct ioctl_args *)args));
855		break;
856
857	case LINUX_TIOCSCTTY:
858		args->cmd = TIOCSCTTY;
859		error = (sys_ioctl(td, (struct ioctl_args *)args));
860		break;
861
862	case LINUX_TIOCGPGRP:
863		args->cmd = TIOCGPGRP;
864		error = (sys_ioctl(td, (struct ioctl_args *)args));
865		break;
866
867	case LINUX_TIOCSPGRP:
868		args->cmd = TIOCSPGRP;
869		error = (sys_ioctl(td, (struct ioctl_args *)args));
870		break;
871
872	/* LINUX_TIOCOUTQ */
873	/* LINUX_TIOCSTI */
874
875	case LINUX_TIOCGWINSZ:
876		args->cmd = TIOCGWINSZ;
877		error = (sys_ioctl(td, (struct ioctl_args *)args));
878		break;
879
880	case LINUX_TIOCSWINSZ:
881		args->cmd = TIOCSWINSZ;
882		error = (sys_ioctl(td, (struct ioctl_args *)args));
883		break;
884
885	case LINUX_TIOCMGET:
886		args->cmd = TIOCMGET;
887		error = (sys_ioctl(td, (struct ioctl_args *)args));
888		break;
889
890	case LINUX_TIOCMBIS:
891		args->cmd = TIOCMBIS;
892		error = (sys_ioctl(td, (struct ioctl_args *)args));
893		break;
894
895	case LINUX_TIOCMBIC:
896		args->cmd = TIOCMBIC;
897		error = (sys_ioctl(td, (struct ioctl_args *)args));
898		break;
899
900	case LINUX_TIOCMSET:
901		args->cmd = TIOCMSET;
902		error = (sys_ioctl(td, (struct ioctl_args *)args));
903		break;
904
905	/* TIOCGSOFTCAR */
906	/* TIOCSSOFTCAR */
907
908	case LINUX_FIONREAD: /* LINUX_TIOCINQ */
909		args->cmd = FIONREAD;
910		error = (sys_ioctl(td, (struct ioctl_args *)args));
911		break;
912
913	/* LINUX_TIOCLINUX */
914
915	case LINUX_TIOCCONS:
916		args->cmd = TIOCCONS;
917		error = (sys_ioctl(td, (struct ioctl_args *)args));
918		break;
919
920	case LINUX_TIOCGSERIAL: {
921		struct linux_serial_struct lss;
922		lss.type = LINUX_PORT_16550A;
923		lss.flags = 0;
924		lss.close_delay = 0;
925		error = copyout(&lss, (void *)args->arg, sizeof(lss));
926		break;
927	}
928
929	case LINUX_TIOCSSERIAL: {
930		struct linux_serial_struct lss;
931		error = copyin((void *)args->arg, &lss, sizeof(lss));
932		if (error)
933			break;
934		/* XXX - It really helps to have an implementation that
935		 * does nothing. NOT!
936		 */
937		error = 0;
938		break;
939	}
940
941	case LINUX_TIOCPKT:
942		args->cmd = TIOCPKT;
943		error = (sys_ioctl(td, (struct ioctl_args *)args));
944		break;
945
946	case LINUX_FIONBIO:
947		args->cmd = FIONBIO;
948		error = (sys_ioctl(td, (struct ioctl_args *)args));
949		break;
950
951	case LINUX_TIOCNOTTY:
952		args->cmd = TIOCNOTTY;
953		error = (sys_ioctl(td, (struct ioctl_args *)args));
954		break;
955
956	case LINUX_TIOCSETD: {
957		int line;
958		switch (args->arg) {
959		case LINUX_N_TTY:
960			line = TTYDISC;
961			break;
962		case LINUX_N_SLIP:
963			line = SLIPDISC;
964			break;
965		case LINUX_N_PPP:
966			line = PPPDISC;
967			break;
968		default:
969			fdrop(fp, td);
970			return (EINVAL);
971		}
972		error = (fo_ioctl(fp, TIOCSETD, (caddr_t)&line, td->td_ucred,
973		    td));
974		break;
975	}
976
977	case LINUX_TIOCGETD: {
978		int linux_line;
979		int bsd_line = TTYDISC;
980		error = fo_ioctl(fp, TIOCGETD, (caddr_t)&bsd_line,
981		    td->td_ucred, td);
982		if (error)
983			return (error);
984		switch (bsd_line) {
985		case TTYDISC:
986			linux_line = LINUX_N_TTY;
987			break;
988		case SLIPDISC:
989			linux_line = LINUX_N_SLIP;
990			break;
991		case PPPDISC:
992			linux_line = LINUX_N_PPP;
993			break;
994		default:
995			fdrop(fp, td);
996			return (EINVAL);
997		}
998		error = (copyout(&linux_line, (void *)args->arg, sizeof(int)));
999		break;
1000	}
1001
1002	/* LINUX_TCSBRKP */
1003	/* LINUX_TIOCTTYGSTRUCT */
1004
1005	case LINUX_FIONCLEX:
1006		args->cmd = FIONCLEX;
1007		error = (sys_ioctl(td, (struct ioctl_args *)args));
1008		break;
1009
1010	case LINUX_FIOCLEX:
1011		args->cmd = FIOCLEX;
1012		error = (sys_ioctl(td, (struct ioctl_args *)args));
1013		break;
1014
1015	case LINUX_FIOASYNC:
1016		args->cmd = FIOASYNC;
1017		error = (sys_ioctl(td, (struct ioctl_args *)args));
1018		break;
1019
1020	/* LINUX_TIOCSERCONFIG */
1021	/* LINUX_TIOCSERGWILD */
1022	/* LINUX_TIOCSERSWILD */
1023	/* LINUX_TIOCGLCKTRMIOS */
1024	/* LINUX_TIOCSLCKTRMIOS */
1025
1026	case LINUX_TIOCSBRK:
1027		args->cmd = TIOCSBRK;
1028		error = (sys_ioctl(td, (struct ioctl_args *)args));
1029		break;
1030
1031	case LINUX_TIOCCBRK:
1032		args->cmd = TIOCCBRK;
1033		error = (sys_ioctl(td, (struct ioctl_args *)args));
1034		break;
1035	case LINUX_TIOCGPTN: {
1036		int nb;
1037
1038		error = fo_ioctl(fp, TIOCGPTN, (caddr_t)&nb, td->td_ucred, td);
1039		if (!error)
1040			error = copyout(&nb, (void *)args->arg,
1041			    sizeof(int));
1042		break;
1043	}
1044	case LINUX_TIOCSPTLCK:
1045		/* Our unlockpt() does nothing. */
1046		error = 0;
1047		break;
1048	default:
1049		error = ENOIOCTL;
1050		break;
1051	}
1052
1053	fdrop(fp, td);
1054	return (error);
1055}
1056
1057/*
1058 * CDROM related ioctls
1059 */
1060
1061struct linux_cdrom_msf
1062{
1063	u_char	cdmsf_min0;
1064	u_char	cdmsf_sec0;
1065	u_char	cdmsf_frame0;
1066	u_char	cdmsf_min1;
1067	u_char	cdmsf_sec1;
1068	u_char	cdmsf_frame1;
1069};
1070
1071struct linux_cdrom_tochdr
1072{
1073	u_char	cdth_trk0;
1074	u_char	cdth_trk1;
1075};
1076
1077union linux_cdrom_addr
1078{
1079	struct {
1080		u_char	minute;
1081		u_char	second;
1082		u_char	frame;
1083	} msf;
1084	int	lba;
1085};
1086
1087struct linux_cdrom_tocentry
1088{
1089	u_char	cdte_track;
1090	u_char	cdte_adr:4;
1091	u_char	cdte_ctrl:4;
1092	u_char	cdte_format;
1093	union linux_cdrom_addr cdte_addr;
1094	u_char	cdte_datamode;
1095};
1096
1097struct linux_cdrom_subchnl
1098{
1099	u_char	cdsc_format;
1100	u_char	cdsc_audiostatus;
1101	u_char	cdsc_adr:4;
1102	u_char	cdsc_ctrl:4;
1103	u_char	cdsc_trk;
1104	u_char	cdsc_ind;
1105	union linux_cdrom_addr cdsc_absaddr;
1106	union linux_cdrom_addr cdsc_reladdr;
1107};
1108
1109struct l_cdrom_read_audio {
1110	union linux_cdrom_addr addr;
1111	u_char		addr_format;
1112	l_int		nframes;
1113	u_char		*buf;
1114};
1115
1116struct l_dvd_layer {
1117	u_char		book_version:4;
1118	u_char		book_type:4;
1119	u_char		min_rate:4;
1120	u_char		disc_size:4;
1121	u_char		layer_type:4;
1122	u_char		track_path:1;
1123	u_char		nlayers:2;
1124	u_char		track_density:4;
1125	u_char		linear_density:4;
1126	u_char		bca:1;
1127	u_int32_t	start_sector;
1128	u_int32_t	end_sector;
1129	u_int32_t	end_sector_l0;
1130};
1131
1132struct l_dvd_physical {
1133	u_char		type;
1134	u_char		layer_num;
1135	struct l_dvd_layer layer[4];
1136};
1137
1138struct l_dvd_copyright {
1139	u_char		type;
1140	u_char		layer_num;
1141	u_char		cpst;
1142	u_char		rmi;
1143};
1144
1145struct l_dvd_disckey {
1146	u_char		type;
1147	l_uint		agid:2;
1148	u_char		value[2048];
1149};
1150
1151struct l_dvd_bca {
1152	u_char		type;
1153	l_int		len;
1154	u_char		value[188];
1155};
1156
1157struct l_dvd_manufact {
1158	u_char		type;
1159	u_char		layer_num;
1160	l_int		len;
1161	u_char		value[2048];
1162};
1163
1164typedef union {
1165	u_char			type;
1166	struct l_dvd_physical	physical;
1167	struct l_dvd_copyright	copyright;
1168	struct l_dvd_disckey	disckey;
1169	struct l_dvd_bca	bca;
1170	struct l_dvd_manufact	manufact;
1171} l_dvd_struct;
1172
1173typedef u_char l_dvd_key[5];
1174typedef u_char l_dvd_challenge[10];
1175
1176struct l_dvd_lu_send_agid {
1177	u_char		type;
1178	l_uint		agid:2;
1179};
1180
1181struct l_dvd_host_send_challenge {
1182	u_char		type;
1183	l_uint		agid:2;
1184	l_dvd_challenge	chal;
1185};
1186
1187struct l_dvd_send_key {
1188	u_char		type;
1189	l_uint		agid:2;
1190	l_dvd_key	key;
1191};
1192
1193struct l_dvd_lu_send_challenge {
1194	u_char		type;
1195	l_uint		agid:2;
1196	l_dvd_challenge	chal;
1197};
1198
1199struct l_dvd_lu_send_title_key {
1200	u_char		type;
1201	l_uint		agid:2;
1202	l_dvd_key	title_key;
1203	l_int		lba;
1204	l_uint		cpm:1;
1205	l_uint		cp_sec:1;
1206	l_uint		cgms:2;
1207};
1208
1209struct l_dvd_lu_send_asf {
1210	u_char		type;
1211	l_uint		agid:2;
1212	l_uint		asf:1;
1213};
1214
1215struct l_dvd_host_send_rpcstate {
1216	u_char		type;
1217	u_char		pdrc;
1218};
1219
1220struct l_dvd_lu_send_rpcstate {
1221	u_char		type:2;
1222	u_char		vra:3;
1223	u_char		ucca:3;
1224	u_char		region_mask;
1225	u_char		rpc_scheme;
1226};
1227
1228typedef union {
1229	u_char				type;
1230	struct l_dvd_lu_send_agid	lsa;
1231	struct l_dvd_host_send_challenge hsc;
1232	struct l_dvd_send_key		lsk;
1233	struct l_dvd_lu_send_challenge	lsc;
1234	struct l_dvd_send_key		hsk;
1235	struct l_dvd_lu_send_title_key	lstk;
1236	struct l_dvd_lu_send_asf	lsasf;
1237	struct l_dvd_host_send_rpcstate	hrpcs;
1238	struct l_dvd_lu_send_rpcstate	lrpcs;
1239} l_dvd_authinfo;
1240
1241static void
1242bsd_to_linux_msf_lba(u_char af, union msf_lba *bp, union linux_cdrom_addr *lp)
1243{
1244	if (af == CD_LBA_FORMAT)
1245		lp->lba = bp->lba;
1246	else {
1247		lp->msf.minute = bp->msf.minute;
1248		lp->msf.second = bp->msf.second;
1249		lp->msf.frame = bp->msf.frame;
1250	}
1251}
1252
1253static void
1254set_linux_cdrom_addr(union linux_cdrom_addr *addr, int format, int lba)
1255{
1256	if (format == LINUX_CDROM_MSF) {
1257		addr->msf.frame = lba % 75;
1258		lba /= 75;
1259		lba += 2;
1260		addr->msf.second = lba % 60;
1261		addr->msf.minute = lba / 60;
1262	} else
1263		addr->lba = lba;
1264}
1265
1266static int
1267linux_to_bsd_dvd_struct(l_dvd_struct *lp, struct dvd_struct *bp)
1268{
1269	bp->format = lp->type;
1270	switch (bp->format) {
1271	case DVD_STRUCT_PHYSICAL:
1272		if (bp->layer_num >= 4)
1273			return (EINVAL);
1274		bp->layer_num = lp->physical.layer_num;
1275		break;
1276	case DVD_STRUCT_COPYRIGHT:
1277		bp->layer_num = lp->copyright.layer_num;
1278		break;
1279	case DVD_STRUCT_DISCKEY:
1280		bp->agid = lp->disckey.agid;
1281		break;
1282	case DVD_STRUCT_BCA:
1283	case DVD_STRUCT_MANUFACT:
1284		break;
1285	default:
1286		return (EINVAL);
1287	}
1288	return (0);
1289}
1290
1291static int
1292bsd_to_linux_dvd_struct(struct dvd_struct *bp, l_dvd_struct *lp)
1293{
1294	switch (bp->format) {
1295	case DVD_STRUCT_PHYSICAL: {
1296		struct dvd_layer *blp = (struct dvd_layer *)bp->data;
1297		struct l_dvd_layer *llp = &lp->physical.layer[bp->layer_num];
1298		memset(llp, 0, sizeof(*llp));
1299		llp->book_version = blp->book_version;
1300		llp->book_type = blp->book_type;
1301		llp->min_rate = blp->max_rate;
1302		llp->disc_size = blp->disc_size;
1303		llp->layer_type = blp->layer_type;
1304		llp->track_path = blp->track_path;
1305		llp->nlayers = blp->nlayers;
1306		llp->track_density = blp->track_density;
1307		llp->linear_density = blp->linear_density;
1308		llp->bca = blp->bca;
1309		llp->start_sector = blp->start_sector;
1310		llp->end_sector = blp->end_sector;
1311		llp->end_sector_l0 = blp->end_sector_l0;
1312		break;
1313	}
1314	case DVD_STRUCT_COPYRIGHT:
1315		lp->copyright.cpst = bp->cpst;
1316		lp->copyright.rmi = bp->rmi;
1317		break;
1318	case DVD_STRUCT_DISCKEY:
1319		memcpy(lp->disckey.value, bp->data, sizeof(lp->disckey.value));
1320		break;
1321	case DVD_STRUCT_BCA:
1322		lp->bca.len = bp->length;
1323		memcpy(lp->bca.value, bp->data, sizeof(lp->bca.value));
1324		break;
1325	case DVD_STRUCT_MANUFACT:
1326		lp->manufact.len = bp->length;
1327		memcpy(lp->manufact.value, bp->data,
1328		    sizeof(lp->manufact.value));
1329		/* lp->manufact.layer_num is unused in linux (redhat 7.0) */
1330		break;
1331	default:
1332		return (EINVAL);
1333	}
1334	return (0);
1335}
1336
1337static int
1338linux_to_bsd_dvd_authinfo(l_dvd_authinfo *lp, int *bcode,
1339    struct dvd_authinfo *bp)
1340{
1341	switch (lp->type) {
1342	case LINUX_DVD_LU_SEND_AGID:
1343		*bcode = DVDIOCREPORTKEY;
1344		bp->format = DVD_REPORT_AGID;
1345		bp->agid = lp->lsa.agid;
1346		break;
1347	case LINUX_DVD_HOST_SEND_CHALLENGE:
1348		*bcode = DVDIOCSENDKEY;
1349		bp->format = DVD_SEND_CHALLENGE;
1350		bp->agid = lp->hsc.agid;
1351		memcpy(bp->keychal, lp->hsc.chal, 10);
1352		break;
1353	case LINUX_DVD_LU_SEND_KEY1:
1354		*bcode = DVDIOCREPORTKEY;
1355		bp->format = DVD_REPORT_KEY1;
1356		bp->agid = lp->lsk.agid;
1357		break;
1358	case LINUX_DVD_LU_SEND_CHALLENGE:
1359		*bcode = DVDIOCREPORTKEY;
1360		bp->format = DVD_REPORT_CHALLENGE;
1361		bp->agid = lp->lsc.agid;
1362		break;
1363	case LINUX_DVD_HOST_SEND_KEY2:
1364		*bcode = DVDIOCSENDKEY;
1365		bp->format = DVD_SEND_KEY2;
1366		bp->agid = lp->hsk.agid;
1367		memcpy(bp->keychal, lp->hsk.key, 5);
1368		break;
1369	case LINUX_DVD_LU_SEND_TITLE_KEY:
1370		*bcode = DVDIOCREPORTKEY;
1371		bp->format = DVD_REPORT_TITLE_KEY;
1372		bp->agid = lp->lstk.agid;
1373		bp->lba = lp->lstk.lba;
1374		break;
1375	case LINUX_DVD_LU_SEND_ASF:
1376		*bcode = DVDIOCREPORTKEY;
1377		bp->format = DVD_REPORT_ASF;
1378		bp->agid = lp->lsasf.agid;
1379		break;
1380	case LINUX_DVD_INVALIDATE_AGID:
1381		*bcode = DVDIOCREPORTKEY;
1382		bp->format = DVD_INVALIDATE_AGID;
1383		bp->agid = lp->lsa.agid;
1384		break;
1385	case LINUX_DVD_LU_SEND_RPC_STATE:
1386		*bcode = DVDIOCREPORTKEY;
1387		bp->format = DVD_REPORT_RPC;
1388		break;
1389	case LINUX_DVD_HOST_SEND_RPC_STATE:
1390		*bcode = DVDIOCSENDKEY;
1391		bp->format = DVD_SEND_RPC;
1392		bp->region = lp->hrpcs.pdrc;
1393		break;
1394	default:
1395		return (EINVAL);
1396	}
1397	return (0);
1398}
1399
1400static int
1401bsd_to_linux_dvd_authinfo(struct dvd_authinfo *bp, l_dvd_authinfo *lp)
1402{
1403	switch (lp->type) {
1404	case LINUX_DVD_LU_SEND_AGID:
1405		lp->lsa.agid = bp->agid;
1406		break;
1407	case LINUX_DVD_HOST_SEND_CHALLENGE:
1408		lp->type = LINUX_DVD_LU_SEND_KEY1;
1409		break;
1410	case LINUX_DVD_LU_SEND_KEY1:
1411		memcpy(lp->lsk.key, bp->keychal, sizeof(lp->lsk.key));
1412		break;
1413	case LINUX_DVD_LU_SEND_CHALLENGE:
1414		memcpy(lp->lsc.chal, bp->keychal, sizeof(lp->lsc.chal));
1415		break;
1416	case LINUX_DVD_HOST_SEND_KEY2:
1417		lp->type = LINUX_DVD_AUTH_ESTABLISHED;
1418		break;
1419	case LINUX_DVD_LU_SEND_TITLE_KEY:
1420		memcpy(lp->lstk.title_key, bp->keychal,
1421		    sizeof(lp->lstk.title_key));
1422		lp->lstk.cpm = bp->cpm;
1423		lp->lstk.cp_sec = bp->cp_sec;
1424		lp->lstk.cgms = bp->cgms;
1425		break;
1426	case LINUX_DVD_LU_SEND_ASF:
1427		lp->lsasf.asf = bp->asf;
1428		break;
1429	case LINUX_DVD_INVALIDATE_AGID:
1430		break;
1431	case LINUX_DVD_LU_SEND_RPC_STATE:
1432		lp->lrpcs.type = bp->reg_type;
1433		lp->lrpcs.vra = bp->vend_rsts;
1434		lp->lrpcs.ucca = bp->user_rsts;
1435		lp->lrpcs.region_mask = bp->region;
1436		lp->lrpcs.rpc_scheme = bp->rpc_scheme;
1437		break;
1438	case LINUX_DVD_HOST_SEND_RPC_STATE:
1439		break;
1440	default:
1441		return (EINVAL);
1442	}
1443	return (0);
1444}
1445
1446static int
1447linux_ioctl_cdrom(struct thread *td, struct linux_ioctl_args *args)
1448{
1449	cap_rights_t rights;
1450	struct file *fp;
1451	int error;
1452
1453	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
1454	if (error != 0)
1455		return (error);
1456	switch (args->cmd & 0xffff) {
1457
1458	case LINUX_CDROMPAUSE:
1459		args->cmd = CDIOCPAUSE;
1460		error = (sys_ioctl(td, (struct ioctl_args *)args));
1461		break;
1462
1463	case LINUX_CDROMRESUME:
1464		args->cmd = CDIOCRESUME;
1465		error = (sys_ioctl(td, (struct ioctl_args *)args));
1466		break;
1467
1468	case LINUX_CDROMPLAYMSF:
1469		args->cmd = CDIOCPLAYMSF;
1470		error = (sys_ioctl(td, (struct ioctl_args *)args));
1471		break;
1472
1473	case LINUX_CDROMPLAYTRKIND:
1474		args->cmd = CDIOCPLAYTRACKS;
1475		error = (sys_ioctl(td, (struct ioctl_args *)args));
1476		break;
1477
1478	case LINUX_CDROMREADTOCHDR: {
1479		struct ioc_toc_header th;
1480		struct linux_cdrom_tochdr lth;
1481		error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&th,
1482		    td->td_ucred, td);
1483		if (!error) {
1484			lth.cdth_trk0 = th.starting_track;
1485			lth.cdth_trk1 = th.ending_track;
1486			copyout(&lth, (void *)args->arg, sizeof(lth));
1487		}
1488		break;
1489	}
1490
1491	case LINUX_CDROMREADTOCENTRY: {
1492		struct linux_cdrom_tocentry lte;
1493		struct ioc_read_toc_single_entry irtse;
1494
1495		error = copyin((void *)args->arg, &lte, sizeof(lte));
1496		if (error)
1497			break;
1498		irtse.address_format = lte.cdte_format;
1499		irtse.track = lte.cdte_track;
1500		error = fo_ioctl(fp, CDIOREADTOCENTRY, (caddr_t)&irtse,
1501		    td->td_ucred, td);
1502		if (!error) {
1503			lte.cdte_ctrl = irtse.entry.control;
1504			lte.cdte_adr = irtse.entry.addr_type;
1505			bsd_to_linux_msf_lba(irtse.address_format,
1506			    &irtse.entry.addr, &lte.cdte_addr);
1507			error = copyout(&lte, (void *)args->arg, sizeof(lte));
1508		}
1509		break;
1510	}
1511
1512	case LINUX_CDROMSTOP:
1513		args->cmd = CDIOCSTOP;
1514		error = (sys_ioctl(td, (struct ioctl_args *)args));
1515		break;
1516
1517	case LINUX_CDROMSTART:
1518		args->cmd = CDIOCSTART;
1519		error = (sys_ioctl(td, (struct ioctl_args *)args));
1520		break;
1521
1522	case LINUX_CDROMEJECT:
1523		args->cmd = CDIOCEJECT;
1524		error = (sys_ioctl(td, (struct ioctl_args *)args));
1525		break;
1526
1527	/* LINUX_CDROMVOLCTRL */
1528
1529	case LINUX_CDROMSUBCHNL: {
1530		struct linux_cdrom_subchnl sc;
1531		struct ioc_read_subchannel bsdsc;
1532		struct cd_sub_channel_info bsdinfo;
1533
1534		bsdsc.address_format = CD_LBA_FORMAT;
1535		bsdsc.data_format = CD_CURRENT_POSITION;
1536		bsdsc.track = 0;
1537		bsdsc.data_len = sizeof(bsdinfo);
1538		bsdsc.data = &bsdinfo;
1539		error = fo_ioctl(fp, CDIOCREADSUBCHANNEL_SYSSPACE,
1540		    (caddr_t)&bsdsc, td->td_ucred, td);
1541		if (error)
1542			break;
1543		error = copyin((void *)args->arg, &sc, sizeof(sc));
1544		if (error)
1545			break;
1546		sc.cdsc_audiostatus = bsdinfo.header.audio_status;
1547		sc.cdsc_adr = bsdinfo.what.position.addr_type;
1548		sc.cdsc_ctrl = bsdinfo.what.position.control;
1549		sc.cdsc_trk = bsdinfo.what.position.track_number;
1550		sc.cdsc_ind = bsdinfo.what.position.index_number;
1551		set_linux_cdrom_addr(&sc.cdsc_absaddr, sc.cdsc_format,
1552		    bsdinfo.what.position.absaddr.lba);
1553		set_linux_cdrom_addr(&sc.cdsc_reladdr, sc.cdsc_format,
1554		    bsdinfo.what.position.reladdr.lba);
1555		error = copyout(&sc, (void *)args->arg, sizeof(sc));
1556		break;
1557	}
1558
1559	/* LINUX_CDROMREADMODE2 */
1560	/* LINUX_CDROMREADMODE1 */
1561	/* LINUX_CDROMREADAUDIO */
1562	/* LINUX_CDROMEJECT_SW */
1563	/* LINUX_CDROMMULTISESSION */
1564	/* LINUX_CDROM_GET_UPC */
1565
1566	case LINUX_CDROMRESET:
1567		args->cmd = CDIOCRESET;
1568		error = (sys_ioctl(td, (struct ioctl_args *)args));
1569		break;
1570
1571	/* LINUX_CDROMVOLREAD */
1572	/* LINUX_CDROMREADRAW */
1573	/* LINUX_CDROMREADCOOKED */
1574	/* LINUX_CDROMSEEK */
1575	/* LINUX_CDROMPLAYBLK */
1576	/* LINUX_CDROMREADALL */
1577	/* LINUX_CDROMCLOSETRAY */
1578	/* LINUX_CDROMLOADFROMSLOT */
1579	/* LINUX_CDROMGETSPINDOWN */
1580	/* LINUX_CDROMSETSPINDOWN */
1581	/* LINUX_CDROM_SET_OPTIONS */
1582	/* LINUX_CDROM_CLEAR_OPTIONS */
1583	/* LINUX_CDROM_SELECT_SPEED */
1584	/* LINUX_CDROM_SELECT_DISC */
1585	/* LINUX_CDROM_MEDIA_CHANGED */
1586	/* LINUX_CDROM_DRIVE_STATUS */
1587	/* LINUX_CDROM_DISC_STATUS */
1588	/* LINUX_CDROM_CHANGER_NSLOTS */
1589	/* LINUX_CDROM_LOCKDOOR */
1590	/* LINUX_CDROM_DEBUG */
1591	/* LINUX_CDROM_GET_CAPABILITY */
1592	/* LINUX_CDROMAUDIOBUFSIZ */
1593
1594	case LINUX_DVD_READ_STRUCT: {
1595		l_dvd_struct *lds;
1596		struct dvd_struct *bds;
1597
1598		lds = malloc(sizeof(*lds), M_LINUX, M_WAITOK);
1599		bds = malloc(sizeof(*bds), M_LINUX, M_WAITOK);
1600		error = copyin((void *)args->arg, lds, sizeof(*lds));
1601		if (error)
1602			goto out;
1603		error = linux_to_bsd_dvd_struct(lds, bds);
1604		if (error)
1605			goto out;
1606		error = fo_ioctl(fp, DVDIOCREADSTRUCTURE, (caddr_t)bds,
1607		    td->td_ucred, td);
1608		if (error)
1609			goto out;
1610		error = bsd_to_linux_dvd_struct(bds, lds);
1611		if (error)
1612			goto out;
1613		error = copyout(lds, (void *)args->arg, sizeof(*lds));
1614	out:
1615		free(bds, M_LINUX);
1616		free(lds, M_LINUX);
1617		break;
1618	}
1619
1620	/* LINUX_DVD_WRITE_STRUCT */
1621
1622	case LINUX_DVD_AUTH: {
1623		l_dvd_authinfo lda;
1624		struct dvd_authinfo bda;
1625		int bcode;
1626
1627		error = copyin((void *)args->arg, &lda, sizeof(lda));
1628		if (error)
1629			break;
1630		error = linux_to_bsd_dvd_authinfo(&lda, &bcode, &bda);
1631		if (error)
1632			break;
1633		error = fo_ioctl(fp, bcode, (caddr_t)&bda, td->td_ucred,
1634		    td);
1635		if (error) {
1636			if (lda.type == LINUX_DVD_HOST_SEND_KEY2) {
1637				lda.type = LINUX_DVD_AUTH_FAILURE;
1638				copyout(&lda, (void *)args->arg, sizeof(lda));
1639			}
1640			break;
1641		}
1642		error = bsd_to_linux_dvd_authinfo(&bda, &lda);
1643		if (error)
1644			break;
1645		error = copyout(&lda, (void *)args->arg, sizeof(lda));
1646		break;
1647	}
1648
1649	case LINUX_SCSI_GET_BUS_NUMBER:
1650	{
1651		struct sg_scsi_id id;
1652
1653		error = fo_ioctl(fp, SG_GET_SCSI_ID, (caddr_t)&id,
1654		    td->td_ucred, td);
1655		if (error)
1656			break;
1657		error = copyout(&id.channel, (void *)args->arg, sizeof(int));
1658		break;
1659	}
1660
1661	case LINUX_SCSI_GET_IDLUN:
1662	{
1663		struct sg_scsi_id id;
1664		struct scsi_idlun idl;
1665
1666		error = fo_ioctl(fp, SG_GET_SCSI_ID, (caddr_t)&id,
1667		    td->td_ucred, td);
1668		if (error)
1669			break;
1670		idl.dev_id = (id.scsi_id & 0xff) + ((id.lun & 0xff) << 8) +
1671		    ((id.channel & 0xff) << 16) + ((id.host_no & 0xff) << 24);
1672		idl.host_unique_id = id.host_no;
1673		error = copyout(&idl, (void *)args->arg, sizeof(idl));
1674		break;
1675	}
1676
1677	/* LINUX_CDROM_SEND_PACKET */
1678	/* LINUX_CDROM_NEXT_WRITABLE */
1679	/* LINUX_CDROM_LAST_WRITTEN */
1680
1681	default:
1682		error = ENOIOCTL;
1683		break;
1684	}
1685
1686	fdrop(fp, td);
1687	return (error);
1688}
1689
1690static int
1691linux_ioctl_vfat(struct thread *td, struct linux_ioctl_args *args)
1692{
1693
1694	return (ENOTTY);
1695}
1696
1697/*
1698 * Sound related ioctls
1699 */
1700
1701struct linux_mixer_info {
1702	char	id[16];
1703	char	name[32];
1704	int	modify_counter;
1705	int	fillers[10];
1706};
1707
1708struct linux_old_mixer_info {
1709	char	id[16];
1710	char	name[32];
1711};
1712
1713static u_int32_t dirbits[4] = { IOC_VOID, IOC_IN, IOC_OUT, IOC_INOUT };
1714
1715#define	SETDIR(c)	(((c) & ~IOC_DIRMASK) | dirbits[args->cmd >> 30])
1716
1717static int
1718linux_ioctl_sound(struct thread *td, struct linux_ioctl_args *args)
1719{
1720
1721	switch (args->cmd & 0xffff) {
1722
1723	case LINUX_SOUND_MIXER_WRITE_VOLUME:
1724		args->cmd = SETDIR(SOUND_MIXER_WRITE_VOLUME);
1725		return (sys_ioctl(td, (struct ioctl_args *)args));
1726
1727	case LINUX_SOUND_MIXER_WRITE_BASS:
1728		args->cmd = SETDIR(SOUND_MIXER_WRITE_BASS);
1729		return (sys_ioctl(td, (struct ioctl_args *)args));
1730
1731	case LINUX_SOUND_MIXER_WRITE_TREBLE:
1732		args->cmd = SETDIR(SOUND_MIXER_WRITE_TREBLE);
1733		return (sys_ioctl(td, (struct ioctl_args *)args));
1734
1735	case LINUX_SOUND_MIXER_WRITE_SYNTH:
1736		args->cmd = SETDIR(SOUND_MIXER_WRITE_SYNTH);
1737		return (sys_ioctl(td, (struct ioctl_args *)args));
1738
1739	case LINUX_SOUND_MIXER_WRITE_PCM:
1740		args->cmd = SETDIR(SOUND_MIXER_WRITE_PCM);
1741		return (sys_ioctl(td, (struct ioctl_args *)args));
1742
1743	case LINUX_SOUND_MIXER_WRITE_SPEAKER:
1744		args->cmd = SETDIR(SOUND_MIXER_WRITE_SPEAKER);
1745		return (sys_ioctl(td, (struct ioctl_args *)args));
1746
1747	case LINUX_SOUND_MIXER_WRITE_LINE:
1748		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE);
1749		return (sys_ioctl(td, (struct ioctl_args *)args));
1750
1751	case LINUX_SOUND_MIXER_WRITE_MIC:
1752		args->cmd = SETDIR(SOUND_MIXER_WRITE_MIC);
1753		return (sys_ioctl(td, (struct ioctl_args *)args));
1754
1755	case LINUX_SOUND_MIXER_WRITE_CD:
1756		args->cmd = SETDIR(SOUND_MIXER_WRITE_CD);
1757		return (sys_ioctl(td, (struct ioctl_args *)args));
1758
1759	case LINUX_SOUND_MIXER_WRITE_IMIX:
1760		args->cmd = SETDIR(SOUND_MIXER_WRITE_IMIX);
1761		return (sys_ioctl(td, (struct ioctl_args *)args));
1762
1763	case LINUX_SOUND_MIXER_WRITE_ALTPCM:
1764		args->cmd = SETDIR(SOUND_MIXER_WRITE_ALTPCM);
1765		return (sys_ioctl(td, (struct ioctl_args *)args));
1766
1767	case LINUX_SOUND_MIXER_WRITE_RECLEV:
1768		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECLEV);
1769		return (sys_ioctl(td, (struct ioctl_args *)args));
1770
1771	case LINUX_SOUND_MIXER_WRITE_IGAIN:
1772		args->cmd = SETDIR(SOUND_MIXER_WRITE_IGAIN);
1773		return (sys_ioctl(td, (struct ioctl_args *)args));
1774
1775	case LINUX_SOUND_MIXER_WRITE_OGAIN:
1776		args->cmd = SETDIR(SOUND_MIXER_WRITE_OGAIN);
1777		return (sys_ioctl(td, (struct ioctl_args *)args));
1778
1779	case LINUX_SOUND_MIXER_WRITE_LINE1:
1780		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE1);
1781		return (sys_ioctl(td, (struct ioctl_args *)args));
1782
1783	case LINUX_SOUND_MIXER_WRITE_LINE2:
1784		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE2);
1785		return (sys_ioctl(td, (struct ioctl_args *)args));
1786
1787	case LINUX_SOUND_MIXER_WRITE_LINE3:
1788		args->cmd = SETDIR(SOUND_MIXER_WRITE_LINE3);
1789		return (sys_ioctl(td, (struct ioctl_args *)args));
1790
1791	case LINUX_SOUND_MIXER_INFO: {
1792		/* Key on encoded length */
1793		switch ((args->cmd >> 16) & 0x1fff) {
1794		case 0x005c: {	/* SOUND_MIXER_INFO */
1795			struct linux_mixer_info info;
1796			bzero(&info, sizeof(info));
1797			strncpy(info.id, "OSS", sizeof(info.id) - 1);
1798			strncpy(info.name, "FreeBSD OSS Mixer", sizeof(info.name) - 1);
1799			copyout(&info, (void *)args->arg, sizeof(info));
1800			return (0);
1801		}
1802		case 0x0030: {	/* SOUND_OLD_MIXER_INFO */
1803			struct linux_old_mixer_info info;
1804			bzero(&info, sizeof(info));
1805			strncpy(info.id, "OSS", sizeof(info.id) - 1);
1806			strncpy(info.name, "FreeBSD OSS Mixer", sizeof(info.name) - 1);
1807			copyout(&info, (void *)args->arg, sizeof(info));
1808			return (0);
1809		}
1810		default:
1811			return (ENOIOCTL);
1812		}
1813		break;
1814	}
1815
1816	case LINUX_OSS_GETVERSION: {
1817		int version = linux_get_oss_version(td);
1818		return (copyout(&version, (void *)args->arg, sizeof(int)));
1819	}
1820
1821	case LINUX_SOUND_MIXER_READ_STEREODEVS:
1822		args->cmd = SOUND_MIXER_READ_STEREODEVS;
1823		return (sys_ioctl(td, (struct ioctl_args *)args));
1824
1825	case LINUX_SOUND_MIXER_READ_CAPS:
1826		args->cmd = SOUND_MIXER_READ_CAPS;
1827		return (sys_ioctl(td, (struct ioctl_args *)args));
1828
1829	case LINUX_SOUND_MIXER_READ_RECMASK:
1830		args->cmd = SOUND_MIXER_READ_RECMASK;
1831		return (sys_ioctl(td, (struct ioctl_args *)args));
1832
1833	case LINUX_SOUND_MIXER_READ_DEVMASK:
1834		args->cmd = SOUND_MIXER_READ_DEVMASK;
1835		return (sys_ioctl(td, (struct ioctl_args *)args));
1836
1837	case LINUX_SOUND_MIXER_WRITE_RECSRC:
1838		args->cmd = SETDIR(SOUND_MIXER_WRITE_RECSRC);
1839		return (sys_ioctl(td, (struct ioctl_args *)args));
1840
1841	case LINUX_SNDCTL_DSP_RESET:
1842		args->cmd = SNDCTL_DSP_RESET;
1843		return (sys_ioctl(td, (struct ioctl_args *)args));
1844
1845	case LINUX_SNDCTL_DSP_SYNC:
1846		args->cmd = SNDCTL_DSP_SYNC;
1847		return (sys_ioctl(td, (struct ioctl_args *)args));
1848
1849	case LINUX_SNDCTL_DSP_SPEED:
1850		args->cmd = SNDCTL_DSP_SPEED;
1851		return (sys_ioctl(td, (struct ioctl_args *)args));
1852
1853	case LINUX_SNDCTL_DSP_STEREO:
1854		args->cmd = SNDCTL_DSP_STEREO;
1855		return (sys_ioctl(td, (struct ioctl_args *)args));
1856
1857	case LINUX_SNDCTL_DSP_GETBLKSIZE: /* LINUX_SNDCTL_DSP_SETBLKSIZE */
1858		args->cmd = SNDCTL_DSP_GETBLKSIZE;
1859		return (sys_ioctl(td, (struct ioctl_args *)args));
1860
1861	case LINUX_SNDCTL_DSP_SETFMT:
1862		args->cmd = SNDCTL_DSP_SETFMT;
1863		return (sys_ioctl(td, (struct ioctl_args *)args));
1864
1865	case LINUX_SOUND_PCM_WRITE_CHANNELS:
1866		args->cmd = SOUND_PCM_WRITE_CHANNELS;
1867		return (sys_ioctl(td, (struct ioctl_args *)args));
1868
1869	case LINUX_SOUND_PCM_WRITE_FILTER:
1870		args->cmd = SOUND_PCM_WRITE_FILTER;
1871		return (sys_ioctl(td, (struct ioctl_args *)args));
1872
1873	case LINUX_SNDCTL_DSP_POST:
1874		args->cmd = SNDCTL_DSP_POST;
1875		return (sys_ioctl(td, (struct ioctl_args *)args));
1876
1877	case LINUX_SNDCTL_DSP_SUBDIVIDE:
1878		args->cmd = SNDCTL_DSP_SUBDIVIDE;
1879		return (sys_ioctl(td, (struct ioctl_args *)args));
1880
1881	case LINUX_SNDCTL_DSP_SETFRAGMENT:
1882		args->cmd = SNDCTL_DSP_SETFRAGMENT;
1883		return (sys_ioctl(td, (struct ioctl_args *)args));
1884
1885	case LINUX_SNDCTL_DSP_GETFMTS:
1886		args->cmd = SNDCTL_DSP_GETFMTS;
1887		return (sys_ioctl(td, (struct ioctl_args *)args));
1888
1889	case LINUX_SNDCTL_DSP_GETOSPACE:
1890		args->cmd = SNDCTL_DSP_GETOSPACE;
1891		return (sys_ioctl(td, (struct ioctl_args *)args));
1892
1893	case LINUX_SNDCTL_DSP_GETISPACE:
1894		args->cmd = SNDCTL_DSP_GETISPACE;
1895		return (sys_ioctl(td, (struct ioctl_args *)args));
1896
1897	case LINUX_SNDCTL_DSP_NONBLOCK:
1898		args->cmd = SNDCTL_DSP_NONBLOCK;
1899		return (sys_ioctl(td, (struct ioctl_args *)args));
1900
1901	case LINUX_SNDCTL_DSP_GETCAPS:
1902		args->cmd = SNDCTL_DSP_GETCAPS;
1903		return (sys_ioctl(td, (struct ioctl_args *)args));
1904
1905	case LINUX_SNDCTL_DSP_SETTRIGGER: /* LINUX_SNDCTL_GETTRIGGER */
1906		args->cmd = SNDCTL_DSP_SETTRIGGER;
1907		return (sys_ioctl(td, (struct ioctl_args *)args));
1908
1909	case LINUX_SNDCTL_DSP_GETIPTR:
1910		args->cmd = SNDCTL_DSP_GETIPTR;
1911		return (sys_ioctl(td, (struct ioctl_args *)args));
1912
1913	case LINUX_SNDCTL_DSP_GETOPTR:
1914		args->cmd = SNDCTL_DSP_GETOPTR;
1915		return (sys_ioctl(td, (struct ioctl_args *)args));
1916
1917	case LINUX_SNDCTL_DSP_SETDUPLEX:
1918		args->cmd = SNDCTL_DSP_SETDUPLEX;
1919		return (sys_ioctl(td, (struct ioctl_args *)args));
1920
1921	case LINUX_SNDCTL_DSP_GETODELAY:
1922		args->cmd = SNDCTL_DSP_GETODELAY;
1923		return (sys_ioctl(td, (struct ioctl_args *)args));
1924
1925	case LINUX_SNDCTL_SEQ_RESET:
1926		args->cmd = SNDCTL_SEQ_RESET;
1927		return (sys_ioctl(td, (struct ioctl_args *)args));
1928
1929	case LINUX_SNDCTL_SEQ_SYNC:
1930		args->cmd = SNDCTL_SEQ_SYNC;
1931		return (sys_ioctl(td, (struct ioctl_args *)args));
1932
1933	case LINUX_SNDCTL_SYNTH_INFO:
1934		args->cmd = SNDCTL_SYNTH_INFO;
1935		return (sys_ioctl(td, (struct ioctl_args *)args));
1936
1937	case LINUX_SNDCTL_SEQ_CTRLRATE:
1938		args->cmd = SNDCTL_SEQ_CTRLRATE;
1939		return (sys_ioctl(td, (struct ioctl_args *)args));
1940
1941	case LINUX_SNDCTL_SEQ_GETOUTCOUNT:
1942		args->cmd = SNDCTL_SEQ_GETOUTCOUNT;
1943		return (sys_ioctl(td, (struct ioctl_args *)args));
1944
1945	case LINUX_SNDCTL_SEQ_GETINCOUNT:
1946		args->cmd = SNDCTL_SEQ_GETINCOUNT;
1947		return (sys_ioctl(td, (struct ioctl_args *)args));
1948
1949	case LINUX_SNDCTL_SEQ_PERCMODE:
1950		args->cmd = SNDCTL_SEQ_PERCMODE;
1951		return (sys_ioctl(td, (struct ioctl_args *)args));
1952
1953	case LINUX_SNDCTL_FM_LOAD_INSTR:
1954		args->cmd = SNDCTL_FM_LOAD_INSTR;
1955		return (sys_ioctl(td, (struct ioctl_args *)args));
1956
1957	case LINUX_SNDCTL_SEQ_TESTMIDI:
1958		args->cmd = SNDCTL_SEQ_TESTMIDI;
1959		return (sys_ioctl(td, (struct ioctl_args *)args));
1960
1961	case LINUX_SNDCTL_SEQ_RESETSAMPLES:
1962		args->cmd = SNDCTL_SEQ_RESETSAMPLES;
1963		return (sys_ioctl(td, (struct ioctl_args *)args));
1964
1965	case LINUX_SNDCTL_SEQ_NRSYNTHS:
1966		args->cmd = SNDCTL_SEQ_NRSYNTHS;
1967		return (sys_ioctl(td, (struct ioctl_args *)args));
1968
1969	case LINUX_SNDCTL_SEQ_NRMIDIS:
1970		args->cmd = SNDCTL_SEQ_NRMIDIS;
1971		return (sys_ioctl(td, (struct ioctl_args *)args));
1972
1973	case LINUX_SNDCTL_MIDI_INFO:
1974		args->cmd = SNDCTL_MIDI_INFO;
1975		return (sys_ioctl(td, (struct ioctl_args *)args));
1976
1977	case LINUX_SNDCTL_SEQ_TRESHOLD:
1978		args->cmd = SNDCTL_SEQ_TRESHOLD;
1979		return (sys_ioctl(td, (struct ioctl_args *)args));
1980
1981	case LINUX_SNDCTL_SYNTH_MEMAVL:
1982		args->cmd = SNDCTL_SYNTH_MEMAVL;
1983		return (sys_ioctl(td, (struct ioctl_args *)args));
1984
1985	}
1986
1987	return (ENOIOCTL);
1988}
1989
1990/*
1991 * Console related ioctls
1992 */
1993
1994#define ISSIGVALID(sig)		((sig) > 0 && (sig) < NSIG)
1995
1996static int
1997linux_ioctl_console(struct thread *td, struct linux_ioctl_args *args)
1998{
1999	cap_rights_t rights;
2000	struct file *fp;
2001	int error;
2002
2003	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
2004	if (error != 0)
2005		return (error);
2006	switch (args->cmd & 0xffff) {
2007
2008	case LINUX_KIOCSOUND:
2009		args->cmd = KIOCSOUND;
2010		error = (sys_ioctl(td, (struct ioctl_args *)args));
2011		break;
2012
2013	case LINUX_KDMKTONE:
2014		args->cmd = KDMKTONE;
2015		error = (sys_ioctl(td, (struct ioctl_args *)args));
2016		break;
2017
2018	case LINUX_KDGETLED:
2019		args->cmd = KDGETLED;
2020		error = (sys_ioctl(td, (struct ioctl_args *)args));
2021		break;
2022
2023	case LINUX_KDSETLED:
2024		args->cmd = KDSETLED;
2025		error = (sys_ioctl(td, (struct ioctl_args *)args));
2026		break;
2027
2028	case LINUX_KDSETMODE:
2029		args->cmd = KDSETMODE;
2030		error = (sys_ioctl(td, (struct ioctl_args *)args));
2031		break;
2032
2033	case LINUX_KDGETMODE:
2034		args->cmd = KDGETMODE;
2035		error = (sys_ioctl(td, (struct ioctl_args *)args));
2036		break;
2037
2038	case LINUX_KDGKBMODE:
2039		args->cmd = KDGKBMODE;
2040		error = (sys_ioctl(td, (struct ioctl_args *)args));
2041		break;
2042
2043	case LINUX_KDSKBMODE: {
2044		int kbdmode;
2045		switch (args->arg) {
2046		case LINUX_KBD_RAW:
2047			kbdmode = K_RAW;
2048			break;
2049		case LINUX_KBD_XLATE:
2050			kbdmode = K_XLATE;
2051			break;
2052		case LINUX_KBD_MEDIUMRAW:
2053			kbdmode = K_RAW;
2054			break;
2055		default:
2056			fdrop(fp, td);
2057			return (EINVAL);
2058		}
2059		error = (fo_ioctl(fp, KDSKBMODE, (caddr_t)&kbdmode,
2060		    td->td_ucred, td));
2061		break;
2062	}
2063
2064	case LINUX_VT_OPENQRY:
2065		args->cmd = VT_OPENQRY;
2066		error = (sys_ioctl(td, (struct ioctl_args *)args));
2067		break;
2068
2069	case LINUX_VT_GETMODE:
2070		args->cmd = VT_GETMODE;
2071		error = (sys_ioctl(td, (struct ioctl_args *)args));
2072		break;
2073
2074	case LINUX_VT_SETMODE: {
2075		struct vt_mode mode;
2076		if ((error = copyin((void *)args->arg, &mode, sizeof(mode))))
2077			break;
2078		if (!ISSIGVALID(mode.frsig) && ISSIGVALID(mode.acqsig))
2079			mode.frsig = mode.acqsig;
2080		if ((error = copyout(&mode, (void *)args->arg, sizeof(mode))))
2081			break;
2082		args->cmd = VT_SETMODE;
2083		error = (sys_ioctl(td, (struct ioctl_args *)args));
2084		break;
2085	}
2086
2087	case LINUX_VT_GETSTATE:
2088		args->cmd = VT_GETACTIVE;
2089		error = (sys_ioctl(td, (struct ioctl_args *)args));
2090		break;
2091
2092	case LINUX_VT_RELDISP:
2093		args->cmd = VT_RELDISP;
2094		error = (sys_ioctl(td, (struct ioctl_args *)args));
2095		break;
2096
2097	case LINUX_VT_ACTIVATE:
2098		args->cmd = VT_ACTIVATE;
2099		error = (sys_ioctl(td, (struct ioctl_args *)args));
2100		break;
2101
2102	case LINUX_VT_WAITACTIVE:
2103		args->cmd = VT_WAITACTIVE;
2104		error = (sys_ioctl(td, (struct ioctl_args *)args));
2105		break;
2106
2107	default:
2108		error = ENOIOCTL;
2109		break;
2110	}
2111
2112	fdrop(fp, td);
2113	return (error);
2114}
2115
2116/*
2117 * Criteria for interface name translation
2118 */
2119#define IFP_IS_ETH(ifp) (ifp->if_type == IFT_ETHER)
2120
2121/*
2122 * Interface function used by linprocfs (at the time of writing). It's not
2123 * used by the Linuxulator itself.
2124 */
2125int
2126linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen)
2127{
2128	struct ifnet *ifscan;
2129	int ethno;
2130
2131	IFNET_RLOCK_ASSERT();
2132
2133	/* Short-circuit non ethernet interfaces */
2134	if (!IFP_IS_ETH(ifp))
2135		return (strlcpy(buffer, ifp->if_xname, buflen));
2136
2137	/* Determine the (relative) unit number for ethernet interfaces */
2138	ethno = 0;
2139	TAILQ_FOREACH(ifscan, &V_ifnet, if_link) {
2140		if (ifscan == ifp)
2141			return (snprintf(buffer, buflen, "eth%d", ethno));
2142		if (IFP_IS_ETH(ifscan))
2143			ethno++;
2144	}
2145
2146	return (0);
2147}
2148
2149/*
2150 * Translate a Linux interface name to a FreeBSD interface name,
2151 * and return the associated ifnet structure
2152 * bsdname and lxname need to be least IFNAMSIZ bytes long, but
2153 * can point to the same buffer.
2154 */
2155
2156static struct ifnet *
2157ifname_linux_to_bsd(struct thread *td, const char *lxname, char *bsdname)
2158{
2159	struct ifnet *ifp;
2160	int len, unit;
2161	char *ep;
2162	int is_eth, index;
2163
2164	for (len = 0; len < LINUX_IFNAMSIZ; ++len)
2165		if (!isalpha(lxname[len]))
2166			break;
2167	if (len == 0 || len == LINUX_IFNAMSIZ)
2168		return (NULL);
2169	unit = (int)strtoul(lxname + len, &ep, 10);
2170	if (ep == NULL || ep == lxname + len || ep >= lxname + LINUX_IFNAMSIZ)
2171		return (NULL);
2172	index = 0;
2173	is_eth = (len == 3 && !strncmp(lxname, "eth", len)) ? 1 : 0;
2174	CURVNET_SET(TD_TO_VNET(td));
2175	IFNET_RLOCK();
2176	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
2177		/*
2178		 * Allow Linux programs to use FreeBSD names. Don't presume
2179		 * we never have an interface named "eth", so don't make
2180		 * the test optional based on is_eth.
2181		 */
2182		if (strncmp(ifp->if_xname, lxname, LINUX_IFNAMSIZ) == 0)
2183			break;
2184		if (is_eth && IFP_IS_ETH(ifp) && unit == index++)
2185			break;
2186	}
2187	IFNET_RUNLOCK();
2188	CURVNET_RESTORE();
2189	if (ifp != NULL)
2190		strlcpy(bsdname, ifp->if_xname, IFNAMSIZ);
2191	return (ifp);
2192}
2193
2194/*
2195 * Implement the SIOCGIFCONF ioctl
2196 */
2197
2198static int
2199linux_ifconf(struct thread *td, struct ifconf *uifc)
2200{
2201#ifdef COMPAT_LINUX32
2202	struct l_ifconf ifc;
2203#else
2204	struct ifconf ifc;
2205#endif
2206	struct l_ifreq ifr;
2207	struct ifnet *ifp;
2208	struct ifaddr *ifa;
2209	struct sbuf *sb;
2210	int error, ethno, full = 0, valid_len, max_len;
2211
2212	error = copyin(uifc, &ifc, sizeof(ifc));
2213	if (error != 0)
2214		return (error);
2215
2216	max_len = MAXPHYS - 1;
2217
2218	CURVNET_SET(TD_TO_VNET(td));
2219	/* handle the 'request buffer size' case */
2220	if ((l_uintptr_t)ifc.ifc_buf == PTROUT(NULL)) {
2221		ifc.ifc_len = 0;
2222		IFNET_RLOCK();
2223		TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
2224			TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
2225				struct sockaddr *sa = ifa->ifa_addr;
2226				if (sa->sa_family == AF_INET)
2227					ifc.ifc_len += sizeof(ifr);
2228			}
2229		}
2230		IFNET_RUNLOCK();
2231		error = copyout(&ifc, uifc, sizeof(ifc));
2232		CURVNET_RESTORE();
2233		return (error);
2234	}
2235
2236	if (ifc.ifc_len <= 0) {
2237		CURVNET_RESTORE();
2238		return (EINVAL);
2239	}
2240
2241again:
2242	/* Keep track of eth interfaces */
2243	ethno = 0;
2244	if (ifc.ifc_len <= max_len) {
2245		max_len = ifc.ifc_len;
2246		full = 1;
2247	}
2248	sb = sbuf_new(NULL, NULL, max_len + 1, SBUF_FIXEDLEN);
2249	max_len = 0;
2250	valid_len = 0;
2251
2252	/* Return all AF_INET addresses of all interfaces */
2253	IFNET_RLOCK();
2254	TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
2255		int addrs = 0;
2256
2257		bzero(&ifr, sizeof(ifr));
2258		if (IFP_IS_ETH(ifp))
2259			snprintf(ifr.ifr_name, LINUX_IFNAMSIZ, "eth%d",
2260			    ethno++);
2261		else
2262			strlcpy(ifr.ifr_name, ifp->if_xname, LINUX_IFNAMSIZ);
2263
2264		/* Walk the address list */
2265		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
2266			struct sockaddr *sa = ifa->ifa_addr;
2267
2268			if (sa->sa_family == AF_INET) {
2269				ifr.ifr_addr.sa_family = LINUX_AF_INET;
2270				memcpy(ifr.ifr_addr.sa_data, sa->sa_data,
2271				    sizeof(ifr.ifr_addr.sa_data));
2272				sbuf_bcat(sb, &ifr, sizeof(ifr));
2273				max_len += sizeof(ifr);
2274				addrs++;
2275			}
2276
2277			if (sbuf_error(sb) == 0)
2278				valid_len = sbuf_len(sb);
2279		}
2280		if (addrs == 0) {
2281			bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
2282			sbuf_bcat(sb, &ifr, sizeof(ifr));
2283			max_len += sizeof(ifr);
2284
2285			if (sbuf_error(sb) == 0)
2286				valid_len = sbuf_len(sb);
2287		}
2288	}
2289	IFNET_RUNLOCK();
2290
2291	if (valid_len != max_len && !full) {
2292		sbuf_delete(sb);
2293		goto again;
2294	}
2295
2296	ifc.ifc_len = valid_len;
2297	sbuf_finish(sb);
2298	error = copyout(sbuf_data(sb), PTRIN(ifc.ifc_buf), ifc.ifc_len);
2299	if (error == 0)
2300		error = copyout(&ifc, uifc, sizeof(ifc));
2301	sbuf_delete(sb);
2302	CURVNET_RESTORE();
2303
2304	return (error);
2305}
2306
2307static int
2308linux_gifflags(struct thread *td, struct ifnet *ifp, struct l_ifreq *ifr)
2309{
2310	l_short flags;
2311
2312	flags = (ifp->if_flags | ifp->if_drv_flags) & 0xffff;
2313	/* these flags have no Linux equivalent */
2314	flags &= ~(IFF_SMART|IFF_DRV_OACTIVE|IFF_SIMPLEX|
2315	    IFF_LINK0|IFF_LINK1|IFF_LINK2);
2316	/* Linux' multicast flag is in a different bit */
2317	if (flags & IFF_MULTICAST) {
2318		flags &= ~IFF_MULTICAST;
2319		flags |= 0x1000;
2320	}
2321
2322	return (copyout(&flags, &ifr->ifr_flags, sizeof(flags)));
2323}
2324
2325#define ARPHRD_ETHER	1
2326#define ARPHRD_LOOPBACK	772
2327
2328static int
2329linux_gifhwaddr(struct ifnet *ifp, struct l_ifreq *ifr)
2330{
2331	struct ifaddr *ifa;
2332	struct sockaddr_dl *sdl;
2333	struct l_sockaddr lsa;
2334
2335	if (ifp->if_type == IFT_LOOP) {
2336		bzero(&lsa, sizeof(lsa));
2337		lsa.sa_family = ARPHRD_LOOPBACK;
2338		return (copyout(&lsa, &ifr->ifr_hwaddr, sizeof(lsa)));
2339	}
2340
2341	if (ifp->if_type != IFT_ETHER)
2342		return (ENOENT);
2343
2344	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
2345		sdl = (struct sockaddr_dl*)ifa->ifa_addr;
2346		if (sdl != NULL && (sdl->sdl_family == AF_LINK) &&
2347		    (sdl->sdl_type == IFT_ETHER)) {
2348			bzero(&lsa, sizeof(lsa));
2349			lsa.sa_family = ARPHRD_ETHER;
2350			bcopy(LLADDR(sdl), lsa.sa_data, LINUX_IFHWADDRLEN);
2351			return (copyout(&lsa, &ifr->ifr_hwaddr, sizeof(lsa)));
2352		}
2353	}
2354
2355	return (ENOENT);
2356}
2357
2358
2359 /*
2360* If we fault in bsd_to_linux_ifreq() then we will fault when we call
2361* the native ioctl().  Thus, we don't really need to check the return
2362* value of this function.
2363*/
2364static int
2365bsd_to_linux_ifreq(struct ifreq *arg)
2366{
2367	struct ifreq ifr;
2368	size_t ifr_len = sizeof(struct ifreq);
2369	int error;
2370
2371	if ((error = copyin(arg, &ifr, ifr_len)))
2372		return (error);
2373
2374	*(u_short *)&ifr.ifr_addr = ifr.ifr_addr.sa_family;
2375
2376	error = copyout(&ifr, arg, ifr_len);
2377
2378	return (error);
2379}
2380
2381/*
2382 * Socket related ioctls
2383 */
2384
2385static int
2386linux_ioctl_socket(struct thread *td, struct linux_ioctl_args *args)
2387{
2388	char lifname[LINUX_IFNAMSIZ], ifname[IFNAMSIZ];
2389	cap_rights_t rights;
2390	struct ifnet *ifp;
2391	struct file *fp;
2392	int error, type;
2393
2394	ifp = NULL;
2395	error = 0;
2396
2397	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
2398	if (error != 0)
2399		return (error);
2400	type = fp->f_type;
2401	fdrop(fp, td);
2402	if (type != DTYPE_SOCKET) {
2403		/* not a socket - probably a tap / vmnet device */
2404		switch (args->cmd) {
2405		case LINUX_SIOCGIFADDR:
2406		case LINUX_SIOCSIFADDR:
2407		case LINUX_SIOCGIFFLAGS:
2408			return (linux_ioctl_special(td, args));
2409		default:
2410			return (ENOIOCTL);
2411		}
2412	}
2413
2414	switch (args->cmd & 0xffff) {
2415
2416	case LINUX_FIOGETOWN:
2417	case LINUX_FIOSETOWN:
2418	case LINUX_SIOCADDMULTI:
2419	case LINUX_SIOCATMARK:
2420	case LINUX_SIOCDELMULTI:
2421	case LINUX_SIOCGIFCONF:
2422	case LINUX_SIOCGPGRP:
2423	case LINUX_SIOCSPGRP:
2424	case LINUX_SIOCGIFCOUNT:
2425		/* these ioctls don't take an interface name */
2426#ifdef DEBUG
2427		printf("%s(): ioctl %d\n", __func__,
2428		    args->cmd & 0xffff);
2429#endif
2430		break;
2431
2432	case LINUX_SIOCGIFFLAGS:
2433	case LINUX_SIOCGIFADDR:
2434	case LINUX_SIOCSIFADDR:
2435	case LINUX_SIOCGIFDSTADDR:
2436	case LINUX_SIOCGIFBRDADDR:
2437	case LINUX_SIOCGIFNETMASK:
2438	case LINUX_SIOCSIFNETMASK:
2439	case LINUX_SIOCGIFMTU:
2440	case LINUX_SIOCSIFMTU:
2441	case LINUX_SIOCSIFNAME:
2442	case LINUX_SIOCGIFHWADDR:
2443	case LINUX_SIOCSIFHWADDR:
2444	case LINUX_SIOCDEVPRIVATE:
2445	case LINUX_SIOCDEVPRIVATE+1:
2446	case LINUX_SIOCGIFINDEX:
2447		/* copy in the interface name and translate it. */
2448		error = copyin((void *)args->arg, lifname, LINUX_IFNAMSIZ);
2449		if (error != 0)
2450			return (error);
2451#ifdef DEBUG
2452		printf("%s(): ioctl %d on %.*s\n", __func__,
2453		    args->cmd & 0xffff, LINUX_IFNAMSIZ, lifname);
2454#endif
2455		ifp = ifname_linux_to_bsd(td, lifname, ifname);
2456		if (ifp == NULL)
2457			return (EINVAL);
2458		/*
2459		 * We need to copy it back out in case we pass the
2460		 * request on to our native ioctl(), which will expect
2461		 * the ifreq to be in user space and have the correct
2462		 * interface name.
2463		 */
2464		error = copyout(ifname, (void *)args->arg, IFNAMSIZ);
2465		if (error != 0)
2466			return (error);
2467#ifdef DEBUG
2468		printf("%s(): %s translated to %s\n", __func__,
2469		    lifname, ifname);
2470#endif
2471		break;
2472
2473	default:
2474		return (ENOIOCTL);
2475	}
2476
2477	switch (args->cmd & 0xffff) {
2478
2479	case LINUX_FIOSETOWN:
2480		args->cmd = FIOSETOWN;
2481		error = sys_ioctl(td, (struct ioctl_args *)args);
2482		break;
2483
2484	case LINUX_SIOCSPGRP:
2485		args->cmd = SIOCSPGRP;
2486		error = sys_ioctl(td, (struct ioctl_args *)args);
2487		break;
2488
2489	case LINUX_FIOGETOWN:
2490		args->cmd = FIOGETOWN;
2491		error = sys_ioctl(td, (struct ioctl_args *)args);
2492		break;
2493
2494	case LINUX_SIOCGPGRP:
2495		args->cmd = SIOCGPGRP;
2496		error = sys_ioctl(td, (struct ioctl_args *)args);
2497		break;
2498
2499	case LINUX_SIOCATMARK:
2500		args->cmd = SIOCATMARK;
2501		error = sys_ioctl(td, (struct ioctl_args *)args);
2502		break;
2503
2504	/* LINUX_SIOCGSTAMP */
2505
2506	case LINUX_SIOCGIFCONF:
2507		error = linux_ifconf(td, (struct ifconf *)args->arg);
2508		break;
2509
2510	case LINUX_SIOCGIFFLAGS:
2511		args->cmd = SIOCGIFFLAGS;
2512		error = linux_gifflags(td, ifp, (struct l_ifreq *)args->arg);
2513		break;
2514
2515	case LINUX_SIOCGIFADDR:
2516		args->cmd = SIOCGIFADDR;
2517		error = sys_ioctl(td, (struct ioctl_args *)args);
2518		bsd_to_linux_ifreq((struct ifreq *)args->arg);
2519		break;
2520
2521	case LINUX_SIOCSIFADDR:
2522		/* XXX probably doesn't work, included for completeness */
2523		args->cmd = SIOCSIFADDR;
2524		error = sys_ioctl(td, (struct ioctl_args *)args);
2525		break;
2526
2527	case LINUX_SIOCGIFDSTADDR:
2528		args->cmd = SIOCGIFDSTADDR;
2529		error = sys_ioctl(td, (struct ioctl_args *)args);
2530		bsd_to_linux_ifreq((struct ifreq *)args->arg);
2531		break;
2532
2533	case LINUX_SIOCGIFBRDADDR:
2534		args->cmd = SIOCGIFBRDADDR;
2535		error = sys_ioctl(td, (struct ioctl_args *)args);
2536		bsd_to_linux_ifreq((struct ifreq *)args->arg);
2537		break;
2538
2539	case LINUX_SIOCGIFNETMASK:
2540		args->cmd = SIOCGIFNETMASK;
2541		error = sys_ioctl(td, (struct ioctl_args *)args);
2542		bsd_to_linux_ifreq((struct ifreq *)args->arg);
2543		break;
2544
2545	case LINUX_SIOCSIFNETMASK:
2546		error = ENOIOCTL;
2547		break;
2548
2549	case LINUX_SIOCGIFMTU:
2550		args->cmd = SIOCGIFMTU;
2551		error = sys_ioctl(td, (struct ioctl_args *)args);
2552		break;
2553
2554	case LINUX_SIOCSIFMTU:
2555		args->cmd = SIOCSIFMTU;
2556		error = sys_ioctl(td, (struct ioctl_args *)args);
2557		break;
2558
2559	case LINUX_SIOCSIFNAME:
2560		error = ENOIOCTL;
2561		break;
2562
2563	case LINUX_SIOCGIFHWADDR:
2564		error = linux_gifhwaddr(ifp, (struct l_ifreq *)args->arg);
2565		break;
2566
2567	case LINUX_SIOCSIFHWADDR:
2568		error = ENOIOCTL;
2569		break;
2570
2571	case LINUX_SIOCADDMULTI:
2572		args->cmd = SIOCADDMULTI;
2573		error = sys_ioctl(td, (struct ioctl_args *)args);
2574		break;
2575
2576	case LINUX_SIOCDELMULTI:
2577		args->cmd = SIOCDELMULTI;
2578		error = sys_ioctl(td, (struct ioctl_args *)args);
2579		break;
2580
2581	case LINUX_SIOCGIFINDEX:
2582		args->cmd = SIOCGIFINDEX;
2583		error = sys_ioctl(td, (struct ioctl_args *)args);
2584		break;
2585
2586	case LINUX_SIOCGIFCOUNT:
2587		error = 0;
2588		break;
2589
2590	/*
2591	 * XXX This is slightly bogus, but these ioctls are currently
2592	 * XXX only used by the aironet (if_an) network driver.
2593	 */
2594	case LINUX_SIOCDEVPRIVATE:
2595		args->cmd = SIOCGPRIVATE_0;
2596		error = sys_ioctl(td, (struct ioctl_args *)args);
2597		break;
2598
2599	case LINUX_SIOCDEVPRIVATE+1:
2600		args->cmd = SIOCGPRIVATE_1;
2601		error = sys_ioctl(td, (struct ioctl_args *)args);
2602		break;
2603	}
2604
2605	if (ifp != NULL)
2606		/* restore the original interface name */
2607		copyout(lifname, (void *)args->arg, LINUX_IFNAMSIZ);
2608
2609#ifdef DEBUG
2610	printf("%s(): returning %d\n", __func__, error);
2611#endif
2612	return (error);
2613}
2614
2615/*
2616 * Device private ioctl handler
2617 */
2618static int
2619linux_ioctl_private(struct thread *td, struct linux_ioctl_args *args)
2620{
2621	cap_rights_t rights;
2622	struct file *fp;
2623	int error, type;
2624
2625	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
2626	if (error != 0)
2627		return (error);
2628	type = fp->f_type;
2629	fdrop(fp, td);
2630	if (type == DTYPE_SOCKET)
2631		return (linux_ioctl_socket(td, args));
2632	return (ENOIOCTL);
2633}
2634
2635/*
2636 * DRM ioctl handler (sys/dev/drm)
2637 */
2638static int
2639linux_ioctl_drm(struct thread *td, struct linux_ioctl_args *args)
2640{
2641	args->cmd = SETDIR(args->cmd);
2642	return sys_ioctl(td, (struct ioctl_args *)args);
2643}
2644
2645#ifdef COMPAT_LINUX32
2646#define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
2647#define PTRIN_CP(src,dst,fld) \
2648	do { (dst).fld = PTRIN((src).fld); } while (0)
2649#define PTROUT_CP(src,dst,fld) \
2650	do { (dst).fld = PTROUT((src).fld); } while (0)
2651
2652static int
2653linux_ioctl_sg_io(struct thread *td, struct linux_ioctl_args *args)
2654{
2655	struct sg_io_hdr io;
2656	struct sg_io_hdr32 io32;
2657	cap_rights_t rights;
2658	struct file *fp;
2659	int error;
2660
2661	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
2662	if (error != 0) {
2663		printf("sg_linux_ioctl: fget returned %d\n", error);
2664		return (error);
2665	}
2666
2667	if ((error = copyin((void *)args->arg, &io32, sizeof(io32))) != 0)
2668		goto out;
2669
2670	CP(io32, io, interface_id);
2671	CP(io32, io, dxfer_direction);
2672	CP(io32, io, cmd_len);
2673	CP(io32, io, mx_sb_len);
2674	CP(io32, io, iovec_count);
2675	CP(io32, io, dxfer_len);
2676	PTRIN_CP(io32, io, dxferp);
2677	PTRIN_CP(io32, io, cmdp);
2678	PTRIN_CP(io32, io, sbp);
2679	CP(io32, io, timeout);
2680	CP(io32, io, flags);
2681	CP(io32, io, pack_id);
2682	PTRIN_CP(io32, io, usr_ptr);
2683	CP(io32, io, status);
2684	CP(io32, io, masked_status);
2685	CP(io32, io, msg_status);
2686	CP(io32, io, sb_len_wr);
2687	CP(io32, io, host_status);
2688	CP(io32, io, driver_status);
2689	CP(io32, io, resid);
2690	CP(io32, io, duration);
2691	CP(io32, io, info);
2692
2693	if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0)
2694		goto out;
2695
2696	CP(io, io32, interface_id);
2697	CP(io, io32, dxfer_direction);
2698	CP(io, io32, cmd_len);
2699	CP(io, io32, mx_sb_len);
2700	CP(io, io32, iovec_count);
2701	CP(io, io32, dxfer_len);
2702	PTROUT_CP(io, io32, dxferp);
2703	PTROUT_CP(io, io32, cmdp);
2704	PTROUT_CP(io, io32, sbp);
2705	CP(io, io32, timeout);
2706	CP(io, io32, flags);
2707	CP(io, io32, pack_id);
2708	PTROUT_CP(io, io32, usr_ptr);
2709	CP(io, io32, status);
2710	CP(io, io32, masked_status);
2711	CP(io, io32, msg_status);
2712	CP(io, io32, sb_len_wr);
2713	CP(io, io32, host_status);
2714	CP(io, io32, driver_status);
2715	CP(io, io32, resid);
2716	CP(io, io32, duration);
2717	CP(io, io32, info);
2718
2719	error = copyout(&io32, (void *)args->arg, sizeof(io32));
2720
2721out:
2722	fdrop(fp, td);
2723	return (error);
2724}
2725#endif
2726
2727static int
2728linux_ioctl_sg(struct thread *td, struct linux_ioctl_args *args)
2729{
2730
2731	switch (args->cmd) {
2732	case LINUX_SG_GET_VERSION_NUM:
2733		args->cmd = SG_GET_VERSION_NUM;
2734		break;
2735	case LINUX_SG_SET_TIMEOUT:
2736		args->cmd = SG_SET_TIMEOUT;
2737		break;
2738	case LINUX_SG_GET_TIMEOUT:
2739		args->cmd = SG_GET_TIMEOUT;
2740		break;
2741	case LINUX_SG_IO:
2742		args->cmd = SG_IO;
2743#ifdef COMPAT_LINUX32
2744		return (linux_ioctl_sg_io(td, args));
2745#endif
2746		break;
2747	case LINUX_SG_GET_RESERVED_SIZE:
2748		args->cmd = SG_GET_RESERVED_SIZE;
2749		break;
2750	case LINUX_SG_GET_SCSI_ID:
2751		args->cmd = SG_GET_SCSI_ID;
2752		break;
2753	default:
2754		return (ENODEV);
2755	}
2756	return (sys_ioctl(td, (struct ioctl_args *)args));
2757}
2758
2759/*
2760 * Video4Linux (V4L) ioctl handler
2761 */
2762static int
2763linux_to_bsd_v4l_tuner(struct l_video_tuner *lvt, struct video_tuner *vt)
2764{
2765	vt->tuner = lvt->tuner;
2766	strlcpy(vt->name, lvt->name, LINUX_VIDEO_TUNER_NAME_SIZE);
2767	vt->rangelow = lvt->rangelow;	/* possible long size conversion */
2768	vt->rangehigh = lvt->rangehigh;	/* possible long size conversion */
2769	vt->flags = lvt->flags;
2770	vt->mode = lvt->mode;
2771	vt->signal = lvt->signal;
2772	return (0);
2773}
2774
2775static int
2776bsd_to_linux_v4l_tuner(struct video_tuner *vt, struct l_video_tuner *lvt)
2777{
2778	lvt->tuner = vt->tuner;
2779	strlcpy(lvt->name, vt->name, LINUX_VIDEO_TUNER_NAME_SIZE);
2780	lvt->rangelow = vt->rangelow;	/* possible long size conversion */
2781	lvt->rangehigh = vt->rangehigh;	/* possible long size conversion */
2782	lvt->flags = vt->flags;
2783	lvt->mode = vt->mode;
2784	lvt->signal = vt->signal;
2785	return (0);
2786}
2787
2788#ifdef COMPAT_LINUX_V4L_CLIPLIST
2789static int
2790linux_to_bsd_v4l_clip(struct l_video_clip *lvc, struct video_clip *vc)
2791{
2792	vc->x = lvc->x;
2793	vc->y = lvc->y;
2794	vc->width = lvc->width;
2795	vc->height = lvc->height;
2796	vc->next = PTRIN(lvc->next);	/* possible pointer size conversion */
2797	return (0);
2798}
2799#endif
2800
2801static int
2802linux_to_bsd_v4l_window(struct l_video_window *lvw, struct video_window *vw)
2803{
2804	vw->x = lvw->x;
2805	vw->y = lvw->y;
2806	vw->width = lvw->width;
2807	vw->height = lvw->height;
2808	vw->chromakey = lvw->chromakey;
2809	vw->flags = lvw->flags;
2810	vw->clips = PTRIN(lvw->clips);	/* possible pointer size conversion */
2811	vw->clipcount = lvw->clipcount;
2812	return (0);
2813}
2814
2815static int
2816bsd_to_linux_v4l_window(struct video_window *vw, struct l_video_window *lvw)
2817{
2818	lvw->x = vw->x;
2819	lvw->y = vw->y;
2820	lvw->width = vw->width;
2821	lvw->height = vw->height;
2822	lvw->chromakey = vw->chromakey;
2823	lvw->flags = vw->flags;
2824	lvw->clips = PTROUT(vw->clips);	/* possible pointer size conversion */
2825	lvw->clipcount = vw->clipcount;
2826	return (0);
2827}
2828
2829static int
2830linux_to_bsd_v4l_buffer(struct l_video_buffer *lvb, struct video_buffer *vb)
2831{
2832	vb->base = PTRIN(lvb->base);	/* possible pointer size conversion */
2833	vb->height = lvb->height;
2834	vb->width = lvb->width;
2835	vb->depth = lvb->depth;
2836	vb->bytesperline = lvb->bytesperline;
2837	return (0);
2838}
2839
2840static int
2841bsd_to_linux_v4l_buffer(struct video_buffer *vb, struct l_video_buffer *lvb)
2842{
2843	lvb->base = PTROUT(vb->base);	/* possible pointer size conversion */
2844	lvb->height = vb->height;
2845	lvb->width = vb->width;
2846	lvb->depth = vb->depth;
2847	lvb->bytesperline = vb->bytesperline;
2848	return (0);
2849}
2850
2851static int
2852linux_to_bsd_v4l_code(struct l_video_code *lvc, struct video_code *vc)
2853{
2854	strlcpy(vc->loadwhat, lvc->loadwhat, LINUX_VIDEO_CODE_LOADWHAT_SIZE);
2855	vc->datasize = lvc->datasize;
2856	vc->data = PTRIN(lvc->data);	/* possible pointer size conversion */
2857	return (0);
2858}
2859
2860#ifdef COMPAT_LINUX_V4L_CLIPLIST
2861static int
2862linux_v4l_clip_copy(void *lvc, struct video_clip **ppvc)
2863{
2864	int error;
2865	struct video_clip vclip;
2866	struct l_video_clip l_vclip;
2867
2868	error = copyin(lvc, &l_vclip, sizeof(l_vclip));
2869	if (error) return (error);
2870	linux_to_bsd_v4l_clip(&l_vclip, &vclip);
2871	/* XXX: If there can be no concurrency: s/M_NOWAIT/M_WAITOK/ */
2872	if ((*ppvc = malloc(sizeof(**ppvc), M_LINUX, M_NOWAIT)) == NULL)
2873		return (ENOMEM);    /* XXX: linux has no ENOMEM here */
2874	memcpy(*ppvc, &vclip, sizeof(vclip));
2875	(*ppvc)->next = NULL;
2876	return (0);
2877}
2878
2879static int
2880linux_v4l_cliplist_free(struct video_window *vw)
2881{
2882	struct video_clip **ppvc;
2883	struct video_clip **ppvc_next;
2884
2885	for (ppvc = &(vw->clips); *ppvc != NULL; ppvc = ppvc_next) {
2886		ppvc_next = &((*ppvc)->next);
2887		free(*ppvc, M_LINUX);
2888	}
2889	vw->clips = NULL;
2890
2891	return (0);
2892}
2893
2894static int
2895linux_v4l_cliplist_copy(struct l_video_window *lvw, struct video_window *vw)
2896{
2897	int error;
2898	int clipcount;
2899	void *plvc;
2900	struct video_clip **ppvc;
2901
2902	/*
2903	 * XXX: The cliplist is used to pass in a list of clipping
2904	 *	rectangles or, if clipcount == VIDEO_CLIP_BITMAP, a
2905	 *	clipping bitmap.  Some Linux apps, however, appear to
2906	 *	leave cliplist and clips uninitialized.  In any case,
2907	 *	the cliplist is not used by pwc(4), at the time of
2908	 *	writing, FreeBSD's only V4L driver.  When a driver
2909	 *	that uses the cliplist is developed, this code may
2910	 *	need re-examiniation.
2911	 */
2912	error = 0;
2913	clipcount = vw->clipcount;
2914	if (clipcount == VIDEO_CLIP_BITMAP) {
2915		/*
2916		 * In this case, the pointer (clips) is overloaded
2917		 * to be a "void *" to a bitmap, therefore there
2918		 * is no struct video_clip to copy now.
2919		 */
2920	} else if (clipcount > 0 && clipcount <= 16384) {
2921		/*
2922		 * Clips points to list of clip rectangles, so
2923		 * copy the list.
2924		 *
2925		 * XXX: Upper limit of 16384 was used here to try to
2926		 *	avoid cases when clipcount and clips pointer
2927		 *	are uninitialized and therefore have high random
2928		 *	values, as is the case in the Linux Skype
2929		 *	application.  The value 16384 was chosen as that
2930		 *	is what is used in the Linux stradis(4) MPEG
2931		 *	decoder driver, the only place we found an
2932		 *	example of cliplist use.
2933		 */
2934		plvc = PTRIN(lvw->clips);
2935		vw->clips = NULL;
2936		ppvc = &(vw->clips);
2937		while (clipcount-- > 0) {
2938			if (plvc == 0) {
2939				error = EFAULT;
2940				break;
2941			} else {
2942				error = linux_v4l_clip_copy(plvc, ppvc);
2943				if (error) {
2944					linux_v4l_cliplist_free(vw);
2945					break;
2946				}
2947			}
2948			ppvc = &((*ppvc)->next);
2949		        plvc = PTRIN(((struct l_video_clip *) plvc)->next);
2950		}
2951	} else {
2952		/*
2953		 * clipcount == 0 or negative (but not VIDEO_CLIP_BITMAP)
2954		 * Force cliplist to null.
2955		 */
2956		vw->clipcount = 0;
2957		vw->clips = NULL;
2958	}
2959	return (error);
2960}
2961#endif
2962
2963static int
2964linux_ioctl_v4l(struct thread *td, struct linux_ioctl_args *args)
2965{
2966	cap_rights_t rights;
2967	struct file *fp;
2968	int error;
2969	struct video_tuner vtun;
2970	struct video_window vwin;
2971	struct video_buffer vbuf;
2972	struct video_code vcode;
2973	struct l_video_tuner l_vtun;
2974	struct l_video_window l_vwin;
2975	struct l_video_buffer l_vbuf;
2976	struct l_video_code l_vcode;
2977
2978	switch (args->cmd & 0xffff) {
2979	case LINUX_VIDIOCGCAP:		args->cmd = VIDIOCGCAP; break;
2980	case LINUX_VIDIOCGCHAN:		args->cmd = VIDIOCGCHAN; break;
2981	case LINUX_VIDIOCSCHAN:		args->cmd = VIDIOCSCHAN; break;
2982
2983	case LINUX_VIDIOCGTUNER:
2984		error = fget(td, args->fd,
2985		    cap_rights_init(&rights, CAP_IOCTL), &fp);
2986		if (error != 0)
2987			return (error);
2988		error = copyin((void *) args->arg, &l_vtun, sizeof(l_vtun));
2989		if (error) {
2990			fdrop(fp, td);
2991			return (error);
2992		}
2993		linux_to_bsd_v4l_tuner(&l_vtun, &vtun);
2994		error = fo_ioctl(fp, VIDIOCGTUNER, &vtun, td->td_ucred, td);
2995		if (!error) {
2996			bsd_to_linux_v4l_tuner(&vtun, &l_vtun);
2997			error = copyout(&l_vtun, (void *) args->arg,
2998			    sizeof(l_vtun));
2999		}
3000		fdrop(fp, td);
3001		return (error);
3002
3003	case LINUX_VIDIOCSTUNER:
3004		error = fget(td, args->fd,
3005		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3006		if (error != 0)
3007			return (error);
3008		error = copyin((void *) args->arg, &l_vtun, sizeof(l_vtun));
3009		if (error) {
3010			fdrop(fp, td);
3011			return (error);
3012		}
3013		linux_to_bsd_v4l_tuner(&l_vtun, &vtun);
3014		error = fo_ioctl(fp, VIDIOCSTUNER, &vtun, td->td_ucred, td);
3015		fdrop(fp, td);
3016		return (error);
3017
3018	case LINUX_VIDIOCGPICT:		args->cmd = VIDIOCGPICT; break;
3019	case LINUX_VIDIOCSPICT:		args->cmd = VIDIOCSPICT; break;
3020	case LINUX_VIDIOCCAPTURE:	args->cmd = VIDIOCCAPTURE; break;
3021
3022	case LINUX_VIDIOCGWIN:
3023		error = fget(td, args->fd,
3024		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3025		if (error != 0)
3026			return (error);
3027		error = fo_ioctl(fp, VIDIOCGWIN, &vwin, td->td_ucred, td);
3028		if (!error) {
3029			bsd_to_linux_v4l_window(&vwin, &l_vwin);
3030			error = copyout(&l_vwin, (void *) args->arg,
3031			    sizeof(l_vwin));
3032		}
3033		fdrop(fp, td);
3034		return (error);
3035
3036	case LINUX_VIDIOCSWIN:
3037		error = fget(td, args->fd,
3038		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3039		if (error != 0)
3040			return (error);
3041		error = copyin((void *) args->arg, &l_vwin, sizeof(l_vwin));
3042		if (error) {
3043			fdrop(fp, td);
3044			return (error);
3045		}
3046		linux_to_bsd_v4l_window(&l_vwin, &vwin);
3047#ifdef COMPAT_LINUX_V4L_CLIPLIST
3048		error = linux_v4l_cliplist_copy(&l_vwin, &vwin);
3049		if (error) {
3050			fdrop(fp, td);
3051			return (error);
3052		}
3053#endif
3054		error = fo_ioctl(fp, VIDIOCSWIN, &vwin, td->td_ucred, td);
3055		fdrop(fp, td);
3056#ifdef COMPAT_LINUX_V4L_CLIPLIST
3057		linux_v4l_cliplist_free(&vwin);
3058#endif
3059		return (error);
3060
3061	case LINUX_VIDIOCGFBUF:
3062		error = fget(td, args->fd,
3063		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3064		if (error != 0)
3065			return (error);
3066		error = fo_ioctl(fp, VIDIOCGFBUF, &vbuf, td->td_ucred, td);
3067		if (!error) {
3068			bsd_to_linux_v4l_buffer(&vbuf, &l_vbuf);
3069			error = copyout(&l_vbuf, (void *) args->arg,
3070			    sizeof(l_vbuf));
3071		}
3072		fdrop(fp, td);
3073		return (error);
3074
3075	case LINUX_VIDIOCSFBUF:
3076		error = fget(td, args->fd,
3077		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3078		if (error != 0)
3079			return (error);
3080		error = copyin((void *) args->arg, &l_vbuf, sizeof(l_vbuf));
3081		if (error) {
3082			fdrop(fp, td);
3083			return (error);
3084		}
3085		linux_to_bsd_v4l_buffer(&l_vbuf, &vbuf);
3086		error = fo_ioctl(fp, VIDIOCSFBUF, &vbuf, td->td_ucred, td);
3087		fdrop(fp, td);
3088		return (error);
3089
3090	case LINUX_VIDIOCKEY:		args->cmd = VIDIOCKEY; break;
3091	case LINUX_VIDIOCGFREQ:		args->cmd = VIDIOCGFREQ; break;
3092	case LINUX_VIDIOCSFREQ:		args->cmd = VIDIOCSFREQ; break;
3093	case LINUX_VIDIOCGAUDIO:	args->cmd = VIDIOCGAUDIO; break;
3094	case LINUX_VIDIOCSAUDIO:	args->cmd = VIDIOCSAUDIO; break;
3095	case LINUX_VIDIOCSYNC:		args->cmd = VIDIOCSYNC; break;
3096	case LINUX_VIDIOCMCAPTURE:	args->cmd = VIDIOCMCAPTURE; break;
3097	case LINUX_VIDIOCGMBUF:		args->cmd = VIDIOCGMBUF; break;
3098	case LINUX_VIDIOCGUNIT:		args->cmd = VIDIOCGUNIT; break;
3099	case LINUX_VIDIOCGCAPTURE:	args->cmd = VIDIOCGCAPTURE; break;
3100	case LINUX_VIDIOCSCAPTURE:	args->cmd = VIDIOCSCAPTURE; break;
3101	case LINUX_VIDIOCSPLAYMODE:	args->cmd = VIDIOCSPLAYMODE; break;
3102	case LINUX_VIDIOCSWRITEMODE:	args->cmd = VIDIOCSWRITEMODE; break;
3103	case LINUX_VIDIOCGPLAYINFO:	args->cmd = VIDIOCGPLAYINFO; break;
3104
3105	case LINUX_VIDIOCSMICROCODE:
3106		error = fget(td, args->fd,
3107		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3108		if (error != 0)
3109			return (error);
3110		error = copyin((void *) args->arg, &l_vcode, sizeof(l_vcode));
3111		if (error) {
3112			fdrop(fp, td);
3113			return (error);
3114		}
3115		linux_to_bsd_v4l_code(&l_vcode, &vcode);
3116		error = fo_ioctl(fp, VIDIOCSMICROCODE, &vcode, td->td_ucred, td);
3117		fdrop(fp, td);
3118		return (error);
3119
3120	case LINUX_VIDIOCGVBIFMT:	args->cmd = VIDIOCGVBIFMT; break;
3121	case LINUX_VIDIOCSVBIFMT:	args->cmd = VIDIOCSVBIFMT; break;
3122	default:			return (ENOIOCTL);
3123	}
3124
3125	error = sys_ioctl(td, (struct ioctl_args *)args);
3126	return (error);
3127}
3128
3129/*
3130 * Special ioctl handler
3131 */
3132static int
3133linux_ioctl_special(struct thread *td, struct linux_ioctl_args *args)
3134{
3135	int error;
3136
3137	switch (args->cmd) {
3138	case LINUX_SIOCGIFADDR:
3139		args->cmd = SIOCGIFADDR;
3140		error = sys_ioctl(td, (struct ioctl_args *)args);
3141		break;
3142	case LINUX_SIOCSIFADDR:
3143		args->cmd = SIOCSIFADDR;
3144		error = sys_ioctl(td, (struct ioctl_args *)args);
3145		break;
3146	case LINUX_SIOCGIFFLAGS:
3147		args->cmd = SIOCGIFFLAGS;
3148		error = sys_ioctl(td, (struct ioctl_args *)args);
3149		break;
3150	default:
3151		error = ENOIOCTL;
3152	}
3153
3154	return (error);
3155}
3156
3157static int
3158linux_to_bsd_v4l2_standard(struct l_v4l2_standard *lvstd, struct v4l2_standard *vstd)
3159{
3160	vstd->index = lvstd->index;
3161	vstd->id = lvstd->id;
3162	memcpy(&vstd->name, &lvstd->name, sizeof(*lvstd) - offsetof(struct l_v4l2_standard, name));
3163	return (0);
3164}
3165
3166static int
3167bsd_to_linux_v4l2_standard(struct v4l2_standard *vstd, struct l_v4l2_standard *lvstd)
3168{
3169	lvstd->index = vstd->index;
3170	lvstd->id = vstd->id;
3171	memcpy(&lvstd->name, &vstd->name, sizeof(*lvstd) - offsetof(struct l_v4l2_standard, name));
3172	return (0);
3173}
3174
3175static int
3176linux_to_bsd_v4l2_buffer(struct l_v4l2_buffer *lvb, struct v4l2_buffer *vb)
3177{
3178	vb->index = lvb->index;
3179	vb->type = lvb->type;
3180	vb->bytesused = lvb->bytesused;
3181	vb->flags = lvb->flags;
3182	vb->field = lvb->field;
3183	vb->timestamp.tv_sec = lvb->timestamp.tv_sec;
3184	vb->timestamp.tv_usec = lvb->timestamp.tv_usec;
3185	memcpy(&vb->timecode, &lvb->timecode, sizeof (lvb->timecode));
3186	vb->sequence = lvb->sequence;
3187	vb->memory = lvb->memory;
3188	if (lvb->memory == V4L2_MEMORY_USERPTR)
3189		/* possible pointer size conversion */
3190		vb->m.userptr = (unsigned long)PTRIN(lvb->m.userptr);
3191	else
3192		vb->m.offset = lvb->m.offset;
3193	vb->length = lvb->length;
3194	vb->input = lvb->input;
3195	vb->reserved = lvb->reserved;
3196	return (0);
3197}
3198
3199static int
3200bsd_to_linux_v4l2_buffer(struct v4l2_buffer *vb, struct l_v4l2_buffer *lvb)
3201{
3202	lvb->index = vb->index;
3203	lvb->type = vb->type;
3204	lvb->bytesused = vb->bytesused;
3205	lvb->flags = vb->flags;
3206	lvb->field = vb->field;
3207	lvb->timestamp.tv_sec = vb->timestamp.tv_sec;
3208	lvb->timestamp.tv_usec = vb->timestamp.tv_usec;
3209	memcpy(&lvb->timecode, &vb->timecode, sizeof (vb->timecode));
3210	lvb->sequence = vb->sequence;
3211	lvb->memory = vb->memory;
3212	if (vb->memory == V4L2_MEMORY_USERPTR)
3213		/* possible pointer size conversion */
3214		lvb->m.userptr = PTROUT(vb->m.userptr);
3215	else
3216		lvb->m.offset = vb->m.offset;
3217	lvb->length = vb->length;
3218	lvb->input = vb->input;
3219	lvb->reserved = vb->reserved;
3220	return (0);
3221}
3222
3223static int
3224linux_to_bsd_v4l2_format(struct l_v4l2_format *lvf, struct v4l2_format *vf)
3225{
3226	vf->type = lvf->type;
3227	if (lvf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY
3228#ifdef V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
3229	    || lvf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
3230#endif
3231	    )
3232		/*
3233		 * XXX TODO - needs 32 -> 64 bit conversion:
3234		 * (unused by webcams?)
3235		 */
3236		return EINVAL;
3237	memcpy(&vf->fmt, &lvf->fmt, sizeof(vf->fmt));
3238	return 0;
3239}
3240
3241static int
3242bsd_to_linux_v4l2_format(struct v4l2_format *vf, struct l_v4l2_format *lvf)
3243{
3244	lvf->type = vf->type;
3245	if (vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY
3246#ifdef V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
3247	    || vf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
3248#endif
3249	    )
3250		/*
3251		 * XXX TODO - needs 32 -> 64 bit conversion:
3252		 * (unused by webcams?)
3253		 */
3254		return EINVAL;
3255	memcpy(&lvf->fmt, &vf->fmt, sizeof(vf->fmt));
3256	return 0;
3257}
3258static int
3259linux_ioctl_v4l2(struct thread *td, struct linux_ioctl_args *args)
3260{
3261	cap_rights_t rights;
3262	struct file *fp;
3263	int error;
3264	struct v4l2_format vformat;
3265	struct l_v4l2_format l_vformat;
3266	struct v4l2_standard vstd;
3267	struct l_v4l2_standard l_vstd;
3268	struct l_v4l2_buffer l_vbuf;
3269	struct v4l2_buffer vbuf;
3270	struct v4l2_input vinp;
3271
3272	switch (args->cmd & 0xffff) {
3273	case LINUX_VIDIOC_RESERVED:
3274	case LINUX_VIDIOC_LOG_STATUS:
3275		if ((args->cmd & IOC_DIRMASK) != LINUX_IOC_VOID)
3276			return ENOIOCTL;
3277		args->cmd = (args->cmd & 0xffff) | IOC_VOID;
3278		break;
3279
3280	case LINUX_VIDIOC_OVERLAY:
3281	case LINUX_VIDIOC_STREAMON:
3282	case LINUX_VIDIOC_STREAMOFF:
3283	case LINUX_VIDIOC_S_STD:
3284	case LINUX_VIDIOC_S_TUNER:
3285	case LINUX_VIDIOC_S_AUDIO:
3286	case LINUX_VIDIOC_S_AUDOUT:
3287	case LINUX_VIDIOC_S_MODULATOR:
3288	case LINUX_VIDIOC_S_FREQUENCY:
3289	case LINUX_VIDIOC_S_CROP:
3290	case LINUX_VIDIOC_S_JPEGCOMP:
3291	case LINUX_VIDIOC_S_PRIORITY:
3292	case LINUX_VIDIOC_DBG_S_REGISTER:
3293	case LINUX_VIDIOC_S_HW_FREQ_SEEK:
3294	case LINUX_VIDIOC_SUBSCRIBE_EVENT:
3295	case LINUX_VIDIOC_UNSUBSCRIBE_EVENT:
3296		args->cmd = (args->cmd & ~IOC_DIRMASK) | IOC_IN;
3297		break;
3298
3299	case LINUX_VIDIOC_QUERYCAP:
3300	case LINUX_VIDIOC_G_STD:
3301	case LINUX_VIDIOC_G_AUDIO:
3302	case LINUX_VIDIOC_G_INPUT:
3303	case LINUX_VIDIOC_G_OUTPUT:
3304	case LINUX_VIDIOC_G_AUDOUT:
3305	case LINUX_VIDIOC_G_JPEGCOMP:
3306	case LINUX_VIDIOC_QUERYSTD:
3307	case LINUX_VIDIOC_G_PRIORITY:
3308	case LINUX_VIDIOC_QUERY_DV_PRESET:
3309		args->cmd = (args->cmd & ~IOC_DIRMASK) | IOC_OUT;
3310		break;
3311
3312	case LINUX_VIDIOC_ENUM_FMT:
3313	case LINUX_VIDIOC_REQBUFS:
3314	case LINUX_VIDIOC_G_PARM:
3315	case LINUX_VIDIOC_S_PARM:
3316	case LINUX_VIDIOC_G_CTRL:
3317	case LINUX_VIDIOC_S_CTRL:
3318	case LINUX_VIDIOC_G_TUNER:
3319	case LINUX_VIDIOC_QUERYCTRL:
3320	case LINUX_VIDIOC_QUERYMENU:
3321	case LINUX_VIDIOC_S_INPUT:
3322	case LINUX_VIDIOC_S_OUTPUT:
3323	case LINUX_VIDIOC_ENUMOUTPUT:
3324	case LINUX_VIDIOC_G_MODULATOR:
3325	case LINUX_VIDIOC_G_FREQUENCY:
3326	case LINUX_VIDIOC_CROPCAP:
3327	case LINUX_VIDIOC_G_CROP:
3328	case LINUX_VIDIOC_ENUMAUDIO:
3329	case LINUX_VIDIOC_ENUMAUDOUT:
3330	case LINUX_VIDIOC_G_SLICED_VBI_CAP:
3331#ifdef VIDIOC_ENUM_FRAMESIZES
3332	case LINUX_VIDIOC_ENUM_FRAMESIZES:
3333	case LINUX_VIDIOC_ENUM_FRAMEINTERVALS:
3334	case LINUX_VIDIOC_ENCODER_CMD:
3335	case LINUX_VIDIOC_TRY_ENCODER_CMD:
3336#endif
3337	case LINUX_VIDIOC_DBG_G_REGISTER:
3338	case LINUX_VIDIOC_DBG_G_CHIP_IDENT:
3339	case LINUX_VIDIOC_ENUM_DV_PRESETS:
3340	case LINUX_VIDIOC_S_DV_PRESET:
3341	case LINUX_VIDIOC_G_DV_PRESET:
3342	case LINUX_VIDIOC_S_DV_TIMINGS:
3343	case LINUX_VIDIOC_G_DV_TIMINGS:
3344		args->cmd = (args->cmd & ~IOC_DIRMASK) | IOC_INOUT;
3345		break;
3346
3347	case LINUX_VIDIOC_G_FMT:
3348	case LINUX_VIDIOC_S_FMT:
3349	case LINUX_VIDIOC_TRY_FMT:
3350		error = copyin((void *)args->arg, &l_vformat, sizeof(l_vformat));
3351		if (error)
3352			return (error);
3353		error = fget(td, args->fd,
3354		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3355		if (error)
3356			return (error);
3357		if (linux_to_bsd_v4l2_format(&l_vformat, &vformat) != 0)
3358			error = EINVAL;
3359		else if ((args->cmd & 0xffff) == LINUX_VIDIOC_G_FMT)
3360			error = fo_ioctl(fp, VIDIOC_G_FMT, &vformat,
3361			    td->td_ucred, td);
3362		else if ((args->cmd & 0xffff) == LINUX_VIDIOC_S_FMT)
3363			error = fo_ioctl(fp, VIDIOC_S_FMT, &vformat,
3364			    td->td_ucred, td);
3365		else
3366			error = fo_ioctl(fp, VIDIOC_TRY_FMT, &vformat,
3367			    td->td_ucred, td);
3368		bsd_to_linux_v4l2_format(&vformat, &l_vformat);
3369		copyout(&l_vformat, (void *)args->arg, sizeof(l_vformat));
3370		fdrop(fp, td);
3371		return (error);
3372
3373	case LINUX_VIDIOC_ENUMSTD:
3374		error = copyin((void *)args->arg, &l_vstd, sizeof(l_vstd));
3375		if (error)
3376			return (error);
3377		linux_to_bsd_v4l2_standard(&l_vstd, &vstd);
3378		error = fget(td, args->fd,
3379		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3380		if (error)
3381			return (error);
3382		error = fo_ioctl(fp, VIDIOC_ENUMSTD, (caddr_t)&vstd,
3383		    td->td_ucred, td);
3384		if (error) {
3385			fdrop(fp, td);
3386			return (error);
3387		}
3388		bsd_to_linux_v4l2_standard(&vstd, &l_vstd);
3389		error = copyout(&l_vstd, (void *)args->arg, sizeof(l_vstd));
3390		fdrop(fp, td);
3391		return (error);
3392
3393	case LINUX_VIDIOC_ENUMINPUT:
3394		/*
3395		 * The Linux struct l_v4l2_input differs only in size,
3396		 * it has no padding at the end.
3397		 */
3398		error = copyin((void *)args->arg, &vinp,
3399				sizeof(struct l_v4l2_input));
3400		if (error != 0)
3401			return (error);
3402		error = fget(td, args->fd,
3403		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3404		if (error != 0)
3405			return (error);
3406		error = fo_ioctl(fp, VIDIOC_ENUMINPUT, (caddr_t)&vinp,
3407		    td->td_ucred, td);
3408		if (error) {
3409			fdrop(fp, td);
3410			return (error);
3411		}
3412		error = copyout(&vinp, (void *)args->arg,
3413				sizeof(struct l_v4l2_input));
3414		fdrop(fp, td);
3415		return (error);
3416
3417	case LINUX_VIDIOC_QUERYBUF:
3418	case LINUX_VIDIOC_QBUF:
3419	case LINUX_VIDIOC_DQBUF:
3420		error = copyin((void *)args->arg, &l_vbuf, sizeof(l_vbuf));
3421		if (error)
3422			return (error);
3423		error = fget(td, args->fd,
3424		    cap_rights_init(&rights, CAP_IOCTL), &fp);
3425		if (error)
3426			return (error);
3427		linux_to_bsd_v4l2_buffer(&l_vbuf, &vbuf);
3428		if ((args->cmd & 0xffff) == LINUX_VIDIOC_QUERYBUF)
3429			error = fo_ioctl(fp, VIDIOC_QUERYBUF, &vbuf,
3430			    td->td_ucred, td);
3431		else if ((args->cmd & 0xffff) == LINUX_VIDIOC_QBUF)
3432			error = fo_ioctl(fp, VIDIOC_QBUF, &vbuf,
3433			    td->td_ucred, td);
3434		else
3435			error = fo_ioctl(fp, VIDIOC_DQBUF, &vbuf,
3436			    td->td_ucred, td);
3437		bsd_to_linux_v4l2_buffer(&vbuf, &l_vbuf);
3438		copyout(&l_vbuf, (void *)args->arg, sizeof(l_vbuf));
3439		fdrop(fp, td);
3440		return (error);
3441
3442	/*
3443	 * XXX TODO - these need 32 -> 64 bit conversion:
3444	 * (are any of them needed for webcams?)
3445	 */
3446	case LINUX_VIDIOC_G_FBUF:
3447	case LINUX_VIDIOC_S_FBUF:
3448
3449	case LINUX_VIDIOC_G_EXT_CTRLS:
3450	case LINUX_VIDIOC_S_EXT_CTRLS:
3451	case LINUX_VIDIOC_TRY_EXT_CTRLS:
3452
3453	case LINUX_VIDIOC_DQEVENT:
3454
3455	default:			return (ENOIOCTL);
3456	}
3457
3458	error = sys_ioctl(td, (struct ioctl_args *)args);
3459	return (error);
3460}
3461
3462/*
3463 * Support for emulators/linux-libusb. This port uses FBSD_LUSB* macros
3464 * instead of USB* ones. This lets us to provide correct values for cmd.
3465 * 0xffffffe0 -- 0xffffffff range seemed to be the least collision-prone.
3466 */
3467static int
3468linux_ioctl_fbsd_usb(struct thread *td, struct linux_ioctl_args *args)
3469{
3470	int error;
3471
3472	error = 0;
3473	switch (args->cmd) {
3474	case FBSD_LUSB_DEVICEENUMERATE:
3475		args->cmd = USB_DEVICEENUMERATE;
3476		break;
3477	case FBSD_LUSB_DEV_QUIRK_ADD:
3478		args->cmd = USB_DEV_QUIRK_ADD;
3479		break;
3480	case FBSD_LUSB_DEV_QUIRK_GET:
3481		args->cmd = USB_DEV_QUIRK_GET;
3482		break;
3483	case FBSD_LUSB_DEV_QUIRK_REMOVE:
3484		args->cmd = USB_DEV_QUIRK_REMOVE;
3485		break;
3486	case FBSD_LUSB_DO_REQUEST:
3487		args->cmd = USB_DO_REQUEST;
3488		break;
3489	case FBSD_LUSB_FS_CLEAR_STALL_SYNC:
3490		args->cmd = USB_FS_CLEAR_STALL_SYNC;
3491		break;
3492	case FBSD_LUSB_FS_CLOSE:
3493		args->cmd = USB_FS_CLOSE;
3494		break;
3495	case FBSD_LUSB_FS_COMPLETE:
3496		args->cmd = USB_FS_COMPLETE;
3497		break;
3498	case FBSD_LUSB_FS_INIT:
3499		args->cmd = USB_FS_INIT;
3500		break;
3501	case FBSD_LUSB_FS_OPEN:
3502		args->cmd = USB_FS_OPEN;
3503		break;
3504	case FBSD_LUSB_FS_START:
3505		args->cmd = USB_FS_START;
3506		break;
3507	case FBSD_LUSB_FS_STOP:
3508		args->cmd = USB_FS_STOP;
3509		break;
3510	case FBSD_LUSB_FS_UNINIT:
3511		args->cmd = USB_FS_UNINIT;
3512		break;
3513	case FBSD_LUSB_GET_CONFIG:
3514		args->cmd = USB_GET_CONFIG;
3515		break;
3516	case FBSD_LUSB_GET_DEVICEINFO:
3517		args->cmd = USB_GET_DEVICEINFO;
3518		break;
3519	case FBSD_LUSB_GET_DEVICE_DESC:
3520		args->cmd = USB_GET_DEVICE_DESC;
3521		break;
3522	case FBSD_LUSB_GET_FULL_DESC:
3523		args->cmd = USB_GET_FULL_DESC;
3524		break;
3525	case FBSD_LUSB_GET_IFACE_DRIVER:
3526		args->cmd = USB_GET_IFACE_DRIVER;
3527		break;
3528	case FBSD_LUSB_GET_PLUGTIME:
3529		args->cmd = USB_GET_PLUGTIME;
3530		break;
3531	case FBSD_LUSB_GET_POWER_MODE:
3532		args->cmd = USB_GET_POWER_MODE;
3533		break;
3534	case FBSD_LUSB_GET_REPORT_DESC:
3535		args->cmd = USB_GET_REPORT_DESC;
3536		break;
3537	case FBSD_LUSB_GET_REPORT_ID:
3538		args->cmd = USB_GET_REPORT_ID;
3539		break;
3540	case FBSD_LUSB_GET_TEMPLATE:
3541		args->cmd = USB_GET_TEMPLATE;
3542		break;
3543	case FBSD_LUSB_IFACE_DRIVER_ACTIVE:
3544		args->cmd = USB_IFACE_DRIVER_ACTIVE;
3545		break;
3546	case FBSD_LUSB_IFACE_DRIVER_DETACH:
3547		args->cmd = USB_IFACE_DRIVER_DETACH;
3548		break;
3549	case FBSD_LUSB_QUIRK_NAME_GET:
3550		args->cmd = USB_QUIRK_NAME_GET;
3551		break;
3552	case FBSD_LUSB_READ_DIR:
3553		args->cmd = USB_READ_DIR;
3554		break;
3555	case FBSD_LUSB_SET_ALTINTERFACE:
3556		args->cmd = USB_SET_ALTINTERFACE;
3557		break;
3558	case FBSD_LUSB_SET_CONFIG:
3559		args->cmd = USB_SET_CONFIG;
3560		break;
3561	case FBSD_LUSB_SET_IMMED:
3562		args->cmd = USB_SET_IMMED;
3563		break;
3564	case FBSD_LUSB_SET_POWER_MODE:
3565		args->cmd = USB_SET_POWER_MODE;
3566		break;
3567	case FBSD_LUSB_SET_TEMPLATE:
3568		args->cmd = USB_SET_TEMPLATE;
3569		break;
3570	case FBSD_LUSB_FS_OPEN_STREAM:
3571		args->cmd = USB_FS_OPEN_STREAM;
3572		break;
3573	case FBSD_LUSB_GET_DEV_PORT_PATH:
3574		args->cmd = USB_GET_DEV_PORT_PATH;
3575		break;
3576	case FBSD_LUSB_GET_POWER_USAGE:
3577		args->cmd = USB_GET_POWER_USAGE;
3578		break;
3579	default:
3580		error = ENOIOCTL;
3581	}
3582	if (error != ENOIOCTL)
3583		error = sys_ioctl(td, (struct ioctl_args *)args);
3584	return (error);
3585}
3586
3587/*
3588 * main ioctl syscall function
3589 */
3590
3591int
3592linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
3593{
3594	cap_rights_t rights;
3595	struct file *fp;
3596	struct handler_element *he;
3597	int error, cmd;
3598
3599#ifdef DEBUG
3600	if (ldebug(ioctl))
3601		printf(ARGS(ioctl, "%d, %04lx, *"), args->fd,
3602		    (unsigned long)args->cmd);
3603#endif
3604
3605	error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
3606	if (error != 0)
3607		return (error);
3608	if ((fp->f_flag & (FREAD|FWRITE)) == 0) {
3609		fdrop(fp, td);
3610		return (EBADF);
3611	}
3612
3613	/* Iterate over the ioctl handlers */
3614	cmd = args->cmd & 0xffff;
3615	sx_slock(&linux_ioctl_sx);
3616	mtx_lock(&Giant);
3617	TAILQ_FOREACH(he, &handlers, list) {
3618		if (cmd >= he->low && cmd <= he->high) {
3619			error = (*he->func)(td, args);
3620			if (error != ENOIOCTL) {
3621				mtx_unlock(&Giant);
3622				sx_sunlock(&linux_ioctl_sx);
3623				fdrop(fp, td);
3624				return (error);
3625			}
3626		}
3627	}
3628	mtx_unlock(&Giant);
3629	sx_sunlock(&linux_ioctl_sx);
3630	fdrop(fp, td);
3631
3632	linux_msg(td, "ioctl fd=%d, cmd=0x%x ('%c',%d) is not implemented",
3633	    args->fd, (int)(args->cmd & 0xffff),
3634	    (int)(args->cmd & 0xff00) >> 8, (int)(args->cmd & 0xff));
3635
3636	return (EINVAL);
3637}
3638
3639int
3640linux_ioctl_register_handler(struct linux_ioctl_handler *h)
3641{
3642	struct handler_element *he, *cur;
3643
3644	if (h == NULL || h->func == NULL)
3645		return (EINVAL);
3646
3647	/*
3648	 * Reuse the element if the handler is already on the list, otherwise
3649	 * create a new element.
3650	 */
3651	sx_xlock(&linux_ioctl_sx);
3652	TAILQ_FOREACH(he, &handlers, list) {
3653		if (he->func == h->func)
3654			break;
3655	}
3656	if (he == NULL) {
3657		he = malloc(sizeof(*he),
3658		    M_LINUX, M_WAITOK);
3659		he->func = h->func;
3660	} else
3661		TAILQ_REMOVE(&handlers, he, list);
3662
3663	/* Initialize range information. */
3664	he->low = h->low;
3665	he->high = h->high;
3666	he->span = h->high - h->low + 1;
3667
3668	/* Add the element to the list, sorted on span. */
3669	TAILQ_FOREACH(cur, &handlers, list) {
3670		if (cur->span > he->span) {
3671			TAILQ_INSERT_BEFORE(cur, he, list);
3672			sx_xunlock(&linux_ioctl_sx);
3673			return (0);
3674		}
3675	}
3676	TAILQ_INSERT_TAIL(&handlers, he, list);
3677	sx_xunlock(&linux_ioctl_sx);
3678
3679	return (0);
3680}
3681
3682int
3683linux_ioctl_unregister_handler(struct linux_ioctl_handler *h)
3684{
3685	struct handler_element *he;
3686
3687	if (h == NULL || h->func == NULL)
3688		return (EINVAL);
3689
3690	sx_xlock(&linux_ioctl_sx);
3691	TAILQ_FOREACH(he, &handlers, list) {
3692		if (he->func == h->func) {
3693			TAILQ_REMOVE(&handlers, he, list);
3694			sx_xunlock(&linux_ioctl_sx);
3695			free(he, M_LINUX);
3696			return (0);
3697		}
3698	}
3699	sx_xunlock(&linux_ioctl_sx);
3700
3701	return (EINVAL);
3702}
3703