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Linux 4.19.133
[linux/fpc-iii.git] / fs / compat_ioctl.c
blobc6fe9914440ef4e4e09605cf3f8ba8ccd3c9c376
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
4 *
5 * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
6 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
7 * Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
8 * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
9 *
10 * These routines maintain argument size conversion between 32bit and 64bit
11 * ioctls.
12 */
13
14 #include <linux/joystick.h>
15
16 #include <linux/types.h>
17 #include <linux/compat.h>
18 #include <linux/kernel.h>
19 #include <linux/capability.h>
20 #include <linux/compiler.h>
21 #include <linux/sched.h>
22 #include <linux/smp.h>
23 #include <linux/ioctl.h>
24 #include <linux/if.h>
25 #include <linux/if_bridge.h>
26 #include <linux/raid/md_u.h>
27 #include <linux/kd.h>
28 #include <linux/route.h>
29 #include <linux/in6.h>
30 #include <linux/ipv6_route.h>
31 #include <linux/skbuff.h>
32 #include <linux/netlink.h>
33 #include <linux/vt.h>
34 #include <linux/falloc.h>
35 #include <linux/fs.h>
36 #include <linux/file.h>
37 #include <linux/ppp_defs.h>
38 #include <linux/ppp-ioctl.h>
39 #include <linux/if_pppox.h>
40 #include <linux/mtio.h>
41 #include <linux/tty.h>
42 #include <linux/vt_kern.h>
43 #include <linux/fb.h>
44 #include <linux/videodev2.h>
45 #include <linux/netdevice.h>
46 #include <linux/raw.h>
47 #include <linux/blkdev.h>
48 #include <linux/elevator.h>
49 #include <linux/rtc.h>
50 #include <linux/pci.h>
51 #include <linux/serial.h>
52 #include <linux/if_tun.h>
53 #include <linux/ctype.h>
54 #include <linux/syscalls.h>
55 #include <linux/atalk.h>
56 #include <linux/gfp.h>
57 #include <linux/cec.h>
58
59 #include "internal.h"
60
61 #include <net/bluetooth/bluetooth.h>
62 #include <net/bluetooth/hci_sock.h>
63 #include <net/bluetooth/rfcomm.h>
64
65 #include <linux/capi.h>
66 #include <linux/gigaset_dev.h>
67
68 #ifdef CONFIG_BLOCK
69 #include <linux/cdrom.h>
70 #include <linux/fd.h>
71 #include <scsi/scsi.h>
72 #include <scsi/scsi_ioctl.h>
73 #include <scsi/sg.h>
74 #endif
75
76 #include <linux/uaccess.h>
77 #include <linux/ethtool.h>
78 #include <linux/mii.h>
79 #include <linux/if_bonding.h>
80 #include <linux/watchdog.h>
81
82 #include <linux/soundcard.h>
83 #include <linux/lp.h>
84 #include <linux/ppdev.h>
85
86 #include <linux/atm.h>
87 #include <linux/atmarp.h>
88 #include <linux/atmclip.h>
89 #include <linux/atmdev.h>
90 #include <linux/atmioc.h>
91 #include <linux/atmlec.h>
92 #include <linux/atmmpc.h>
93 #include <linux/atmsvc.h>
94 #include <linux/atm_tcp.h>
95 #include <linux/sonet.h>
96 #include <linux/atm_suni.h>
97
98 #include <linux/usb.h>
99 #include <linux/usbdevice_fs.h>
100 #include <linux/nbd.h>
101 #include <linux/random.h>
102 #include <linux/filter.h>
103
104 #include <linux/hiddev.h>
105
106 #define __DVB_CORE__
107 #include <linux/dvb/audio.h>
108 #include <linux/dvb/dmx.h>
109 #include <linux/dvb/frontend.h>
110 #include <linux/dvb/video.h>
111
112 #include <linux/sort.h>
113
114 #ifdef CONFIG_SPARC
115 #include <asm/fbio.h>
116 #endif
117
118 #define convert_in_user(srcptr, dstptr) \
119 ({ \
120 typeof(*srcptr) val; \
121 \
122 get_user(val, srcptr) || put_user(val, dstptr); \
123 })
124
125 static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
126 {
127 int err;
128
129 err = security_file_ioctl(file, cmd, arg);
130 if (err)
131 return err;
132
133 return vfs_ioctl(file, cmd, arg);
134 }
135
136 struct compat_video_event {
137 int32_t type;
138 compat_time_t timestamp;
139 union {
140 video_size_t size;
141 unsigned int frame_rate;
142 } u;
143 };
144 #define VIDEO_GET_EVENT32 _IOR('o', 28, struct compat_video_event)
145
146 static int do_video_get_event(struct file *file,
147 unsigned int cmd, struct compat_video_event __user *up)
148 {
149 struct video_event __user *kevent =
150 compat_alloc_user_space(sizeof(*kevent));
151 int err;
152
153 if (kevent == NULL)
154 return -EFAULT;
155
156 err = do_ioctl(file, VIDEO_GET_EVENT, (unsigned long)kevent);
157 if (!err) {
158 err = convert_in_user(&kevent->type, &up->type);
159 err |= convert_in_user(&kevent->timestamp, &up->timestamp);
160 err |= convert_in_user(&kevent->u.size.w, &up->u.size.w);
161 err |= convert_in_user(&kevent->u.size.h, &up->u.size.h);
162 err |= convert_in_user(&kevent->u.size.aspect_ratio,
163 &up->u.size.aspect_ratio);
164 if (err)
165 err = -EFAULT;
166 }
167
168 return err;
169 }
170
171 struct compat_video_still_picture {
172 compat_uptr_t iFrame;
173 int32_t size;
174 };
175 #define VIDEO_STILLPICTURE32 _IOW('o', 30, struct compat_video_still_picture)
176
177 static int do_video_stillpicture(struct file *file,
178 unsigned int cmd, struct compat_video_still_picture __user *up)
179 {
180 struct video_still_picture __user *up_native;
181 compat_uptr_t fp;
182 int32_t size;
183 int err;
184
185 err = get_user(fp, &up->iFrame);
186 err |= get_user(size, &up->size);
187 if (err)
188 return -EFAULT;
189
190 up_native =
191 compat_alloc_user_space(sizeof(struct video_still_picture));
192
193 err = put_user(compat_ptr(fp), &up_native->iFrame);
194 err |= put_user(size, &up_native->size);
195 if (err)
196 return -EFAULT;
197
198 err = do_ioctl(file, VIDEO_STILLPICTURE, (unsigned long) up_native);
199
200 return err;
201 }
202
203 #ifdef CONFIG_BLOCK
204 typedef struct sg_io_hdr32 {
205 compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */
206 compat_int_t dxfer_direction; /* [i] data transfer direction */
207 unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */
208 unsigned char mx_sb_len; /* [i] max length to write to sbp */
209 unsigned short iovec_count; /* [i] 0 implies no scatter gather */
210 compat_uint_t dxfer_len; /* [i] byte count of data transfer */
211 compat_uint_t dxferp; /* [i], [*io] points to data transfer memory
212 or scatter gather list */
213 compat_uptr_t cmdp; /* [i], [*i] points to command to perform */
214 compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */
215 compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */
216 compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */
217 compat_int_t pack_id; /* [i->o] unused internally (normally) */
218 compat_uptr_t usr_ptr; /* [i->o] unused internally */
219 unsigned char status; /* [o] scsi status */
220 unsigned char masked_status; /* [o] shifted, masked scsi status */
221 unsigned char msg_status; /* [o] messaging level data (optional) */
222 unsigned char sb_len_wr; /* [o] byte count actually written to sbp */
223 unsigned short host_status; /* [o] errors from host adapter */
224 unsigned short driver_status; /* [o] errors from software driver */
225 compat_int_t resid; /* [o] dxfer_len - actual_transferred */
226 compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */
227 compat_uint_t info; /* [o] auxiliary information */
228 } sg_io_hdr32_t; /* 64 bytes long (on sparc32) */
229
230 typedef struct sg_iovec32 {
231 compat_uint_t iov_base;
232 compat_uint_t iov_len;
233 } sg_iovec32_t;
234
235 static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
236 {
237 sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
238 sg_iovec32_t __user *iov32 = dxferp;
239 int i;
240
241 for (i = 0; i < iovec_count; i++) {
242 u32 base, len;
243
244 if (get_user(base, &iov32[i].iov_base) ||
245 get_user(len, &iov32[i].iov_len) ||
246 put_user(compat_ptr(base), &iov[i].iov_base) ||
247 put_user(len, &iov[i].iov_len))
248 return -EFAULT;
249 }
250
251 if (put_user(iov, &sgio->dxferp))
252 return -EFAULT;
253 return 0;
254 }
255
256 static int sg_ioctl_trans(struct file *file, unsigned int cmd,
257 sg_io_hdr32_t __user *sgio32)
258 {
259 sg_io_hdr_t __user *sgio;
260 u16 iovec_count;
261 u32 data;
262 void __user *dxferp;
263 int err;
264 int interface_id;
265
266 if (get_user(interface_id, &sgio32->interface_id))
267 return -EFAULT;
268 if (interface_id != 'S')
269 return do_ioctl(file, cmd, (unsigned long)sgio32);
270
271 if (get_user(iovec_count, &sgio32->iovec_count))
272 return -EFAULT;
273
274 {
275 void __user *top = compat_alloc_user_space(0);
276 void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) +
277 (iovec_count * sizeof(sg_iovec_t)));
278 if (new > top)
279 return -EINVAL;
280
281 sgio = new;
282 }
283
284 /* Ok, now construct. */
285 if (copy_in_user(&sgio->interface_id, &sgio32->interface_id,
286 (2 * sizeof(int)) +
287 (2 * sizeof(unsigned char)) +
288 (1 * sizeof(unsigned short)) +
289 (1 * sizeof(unsigned int))))
290 return -EFAULT;
291
292 if (get_user(data, &sgio32->dxferp))
293 return -EFAULT;
294 dxferp = compat_ptr(data);
295 if (iovec_count) {
296 if (sg_build_iovec(sgio, dxferp, iovec_count))
297 return -EFAULT;
298 } else {
299 if (put_user(dxferp, &sgio->dxferp))
300 return -EFAULT;
301 }
302
303 {
304 unsigned char __user *cmdp;
305 unsigned char __user *sbp;
306
307 if (get_user(data, &sgio32->cmdp))
308 return -EFAULT;
309 cmdp = compat_ptr(data);
310
311 if (get_user(data, &sgio32->sbp))
312 return -EFAULT;
313 sbp = compat_ptr(data);
314
315 if (put_user(cmdp, &sgio->cmdp) ||
316 put_user(sbp, &sgio->sbp))
317 return -EFAULT;
318 }
319
320 if (copy_in_user(&sgio->timeout, &sgio32->timeout,
321 3 * sizeof(int)))
322 return -EFAULT;
323
324 if (get_user(data, &sgio32->usr_ptr))
325 return -EFAULT;
326 if (put_user(compat_ptr(data), &sgio->usr_ptr))
327 return -EFAULT;
328
329 err = do_ioctl(file, cmd, (unsigned long) sgio);
330
331 if (err >= 0) {
332 void __user *datap;
333
334 if (copy_in_user(&sgio32->pack_id, &sgio->pack_id,
335 sizeof(int)) ||
336 get_user(datap, &sgio->usr_ptr) ||
337 put_user((u32)(unsigned long)datap,
338 &sgio32->usr_ptr) ||
339 copy_in_user(&sgio32->status, &sgio->status,
340 (4 * sizeof(unsigned char)) +
341 (2 * sizeof(unsigned short)) +
342 (3 * sizeof(int))))
343 err = -EFAULT;
344 }
345
346 return err;
347 }
348
349 struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
350 char req_state;
351 char orphan;
352 char sg_io_owned;
353 char problem;
354 int pack_id;
355 compat_uptr_t usr_ptr;
356 unsigned int duration;
357 int unused;
358 };
359
360 static int sg_grt_trans(struct file *file,
361 unsigned int cmd, struct compat_sg_req_info __user *o)
362 {
363 int err, i;
364 sg_req_info_t __user *r;
365 r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
366 err = do_ioctl(file, cmd, (unsigned long)r);
367 if (err < 0)
368 return err;
369 for (i = 0; i < SG_MAX_QUEUE; i++) {
370 void __user *ptr;
371 int d;
372
373 if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) ||
374 get_user(ptr, &r[i].usr_ptr) ||
375 get_user(d, &r[i].duration) ||
376 put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) ||
377 put_user(d, &o[i].duration))
378 return -EFAULT;
379 }
380 return err;
381 }
382 #endif /* CONFIG_BLOCK */
383
384 struct sock_fprog32 {
385 unsigned short len;
386 compat_caddr_t filter;
387 };
388
389 #define PPPIOCSPASS32 _IOW('t', 71, struct sock_fprog32)
390 #define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32)
391
392 static int ppp_sock_fprog_ioctl_trans(struct file *file,
393 unsigned int cmd, struct sock_fprog32 __user *u_fprog32)
394 {
395 struct sock_fprog __user *u_fprog64 = compat_alloc_user_space(sizeof(struct sock_fprog));
396 void __user *fptr64;
397 u32 fptr32;
398 u16 flen;
399
400 if (get_user(flen, &u_fprog32->len) ||
401 get_user(fptr32, &u_fprog32->filter))
402 return -EFAULT;
403
404 fptr64 = compat_ptr(fptr32);
405
406 if (put_user(flen, &u_fprog64->len) ||
407 put_user(fptr64, &u_fprog64->filter))
408 return -EFAULT;
409
410 if (cmd == PPPIOCSPASS32)
411 cmd = PPPIOCSPASS;
412 else
413 cmd = PPPIOCSACTIVE;
414
415 return do_ioctl(file, cmd, (unsigned long) u_fprog64);
416 }
417
418 struct ppp_option_data32 {
419 compat_caddr_t ptr;
420 u32 length;
421 compat_int_t transmit;
422 };
423 #define PPPIOCSCOMPRESS32 _IOW('t', 77, struct ppp_option_data32)
424
425 struct ppp_idle32 {
426 compat_time_t xmit_idle;
427 compat_time_t recv_idle;
428 };
429 #define PPPIOCGIDLE32 _IOR('t', 63, struct ppp_idle32)
430
431 static int ppp_gidle(struct file *file, unsigned int cmd,
432 struct ppp_idle32 __user *idle32)
433 {
434 struct ppp_idle __user *idle;
435 __kernel_time_t xmit, recv;
436 int err;
437
438 idle = compat_alloc_user_space(sizeof(*idle));
439
440 err = do_ioctl(file, PPPIOCGIDLE, (unsigned long) idle);
441
442 if (!err) {
443 if (get_user(xmit, &idle->xmit_idle) ||
444 get_user(recv, &idle->recv_idle) ||
445 put_user(xmit, &idle32->xmit_idle) ||
446 put_user(recv, &idle32->recv_idle))
447 err = -EFAULT;
448 }
449 return err;
450 }
451
452 static int ppp_scompress(struct file *file, unsigned int cmd,
453 struct ppp_option_data32 __user *odata32)
454 {
455 struct ppp_option_data __user *odata;
456 __u32 data;
457 void __user *datap;
458
459 odata = compat_alloc_user_space(sizeof(*odata));
460
461 if (get_user(data, &odata32->ptr))
462 return -EFAULT;
463
464 datap = compat_ptr(data);
465 if (put_user(datap, &odata->ptr))
466 return -EFAULT;
467
468 if (copy_in_user(&odata->length, &odata32->length,
469 sizeof(__u32) + sizeof(int)))
470 return -EFAULT;
471
472 return do_ioctl(file, PPPIOCSCOMPRESS, (unsigned long) odata);
473 }
474
475 #ifdef CONFIG_BLOCK
476 struct mtget32 {
477 compat_long_t mt_type;
478 compat_long_t mt_resid;
479 compat_long_t mt_dsreg;
480 compat_long_t mt_gstat;
481 compat_long_t mt_erreg;
482 compat_daddr_t mt_fileno;
483 compat_daddr_t mt_blkno;
484 };
485 #define MTIOCGET32 _IOR('m', 2, struct mtget32)
486
487 struct mtpos32 {
488 compat_long_t mt_blkno;
489 };
490 #define MTIOCPOS32 _IOR('m', 3, struct mtpos32)
491
492 static int mt_ioctl_trans(struct file *file,
493 unsigned int cmd, void __user *argp)
494 {
495 /* NULL initialization to make gcc shut up */
496 struct mtget __user *get = NULL;
497 struct mtget32 __user *umget32;
498 struct mtpos __user *pos = NULL;
499 struct mtpos32 __user *upos32;
500 unsigned long kcmd;
501 void *karg;
502 int err = 0;
503
504 switch(cmd) {
505 case MTIOCPOS32:
506 kcmd = MTIOCPOS;
507 pos = compat_alloc_user_space(sizeof(*pos));
508 karg = pos;
509 break;
510 default: /* MTIOCGET32 */
511 kcmd = MTIOCGET;
512 get = compat_alloc_user_space(sizeof(*get));
513 karg = get;
514 break;
515 }
516 if (karg == NULL)
517 return -EFAULT;
518 err = do_ioctl(file, kcmd, (unsigned long)karg);
519 if (err)
520 return err;
521 switch (cmd) {
522 case MTIOCPOS32:
523 upos32 = argp;
524 err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno);
525 break;
526 case MTIOCGET32:
527 umget32 = argp;
528 err = convert_in_user(&get->mt_type, &umget32->mt_type);
529 err |= convert_in_user(&get->mt_resid, &umget32->mt_resid);
530 err |= convert_in_user(&get->mt_dsreg, &umget32->mt_dsreg);
531 err |= convert_in_user(&get->mt_gstat, &umget32->mt_gstat);
532 err |= convert_in_user(&get->mt_erreg, &umget32->mt_erreg);
533 err |= convert_in_user(&get->mt_fileno, &umget32->mt_fileno);
534 err |= convert_in_user(&get->mt_blkno, &umget32->mt_blkno);
535 break;
536 }
537 return err ? -EFAULT: 0;
538 }
539
540 #endif /* CONFIG_BLOCK */
541
542 /* Bluetooth ioctls */
543 #define HCIUARTSETPROTO _IOW('U', 200, int)
544 #define HCIUARTGETPROTO _IOR('U', 201, int)
545 #define HCIUARTGETDEVICE _IOR('U', 202, int)
546 #define HCIUARTSETFLAGS _IOW('U', 203, int)
547 #define HCIUARTGETFLAGS _IOR('U', 204, int)
548
549 #define BNEPCONNADD _IOW('B', 200, int)
550 #define BNEPCONNDEL _IOW('B', 201, int)
551 #define BNEPGETCONNLIST _IOR('B', 210, int)
552 #define BNEPGETCONNINFO _IOR('B', 211, int)
553 #define BNEPGETSUPPFEAT _IOR('B', 212, int)
554
555 #define CMTPCONNADD _IOW('C', 200, int)
556 #define CMTPCONNDEL _IOW('C', 201, int)
557 #define CMTPGETCONNLIST _IOR('C', 210, int)
558 #define CMTPGETCONNINFO _IOR('C', 211, int)
559
560 #define HIDPCONNADD _IOW('H', 200, int)
561 #define HIDPCONNDEL _IOW('H', 201, int)
562 #define HIDPGETCONNLIST _IOR('H', 210, int)
563 #define HIDPGETCONNINFO _IOR('H', 211, int)
564
565
566 struct serial_struct32 {
567 compat_int_t type;
568 compat_int_t line;
569 compat_uint_t port;
570 compat_int_t irq;
571 compat_int_t flags;
572 compat_int_t xmit_fifo_size;
573 compat_int_t custom_divisor;
574 compat_int_t baud_base;
575 unsigned short close_delay;
576 char io_type;
577 char reserved_char[1];
578 compat_int_t hub6;
579 unsigned short closing_wait; /* time to wait before closing */
580 unsigned short closing_wait2; /* no longer used... */
581 compat_uint_t iomem_base;
582 unsigned short iomem_reg_shift;
583 unsigned int port_high;
584 /* compat_ulong_t iomap_base FIXME */
585 compat_int_t reserved[1];
586 };
587
588 static int serial_struct_ioctl(struct file *file,
589 unsigned cmd, struct serial_struct32 __user *ss32)
590 {
591 typedef struct serial_struct32 SS32;
592 int err;
593 struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss));
594 __u32 udata;
595 unsigned int base;
596 unsigned char *iomem_base;
597
598 if (ss == NULL)
599 return -EFAULT;
600 if (cmd == TIOCSSERIAL) {
601 if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) ||
602 get_user(udata, &ss32->iomem_base))
603 return -EFAULT;
604 iomem_base = compat_ptr(udata);
605 if (put_user(iomem_base, &ss->iomem_base) ||
606 convert_in_user(&ss32->iomem_reg_shift,
607 &ss->iomem_reg_shift) ||
608 convert_in_user(&ss32->port_high, &ss->port_high) ||
609 put_user(0UL, &ss->iomap_base))
610 return -EFAULT;
611 }
612 err = do_ioctl(file, cmd, (unsigned long)ss);
613 if (cmd == TIOCGSERIAL && err >= 0) {
614 if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) ||
615 get_user(iomem_base, &ss->iomem_base))
616 return -EFAULT;
617 base = (unsigned long)iomem_base >> 32 ?
618 0xffffffff : (unsigned)(unsigned long)iomem_base;
619 if (put_user(base, &ss32->iomem_base) ||
620 convert_in_user(&ss->iomem_reg_shift,
621 &ss32->iomem_reg_shift) ||
622 convert_in_user(&ss->port_high, &ss32->port_high))
623 return -EFAULT;
624 }
625 return err;
626 }
627
628 #define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t)
629 #define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t)
630 #define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t)
631 #define RTC_EPOCH_SET32 _IOW('p', 0x0e, compat_ulong_t)
632
633 static int rtc_ioctl(struct file *file,
634 unsigned cmd, void __user *argp)
635 {
636 unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
637 int ret;
638
639 if (valp == NULL)
640 return -EFAULT;
641 switch (cmd) {
642 case RTC_IRQP_READ32:
643 case RTC_EPOCH_READ32:
644 ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ?
645 RTC_IRQP_READ : RTC_EPOCH_READ,
646 (unsigned long)valp);
647 if (ret)
648 return ret;
649 return convert_in_user(valp, (unsigned int __user *)argp);
650 case RTC_IRQP_SET32:
651 return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp);
652 case RTC_EPOCH_SET32:
653 return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp);
654 }
655
656 return -ENOIOCTLCMD;
657 }
658
659 /* on ia32 l_start is on a 32-bit boundary */
660 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
661 struct space_resv_32 {
662 __s16 l_type;
663 __s16 l_whence;
664 __s64 l_start __attribute__((packed));
665 /* len == 0 means until end of file */
666 __s64 l_len __attribute__((packed));
667 __s32 l_sysid;
668 __u32 l_pid;
669 __s32 l_pad[4]; /* reserve area */
670 };
671
672 #define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32)
673 #define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32)
674
675 /* just account for different alignment */
676 static int compat_ioctl_preallocate(struct file *file,
677 struct space_resv_32 __user *p32)
678 {
679 struct space_resv __user *p = compat_alloc_user_space(sizeof(*p));
680
681 if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) ||
682 copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) ||
683 copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) ||
684 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
685 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
686 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
687 copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
688 return -EFAULT;
689
690 return ioctl_preallocate(file, p);
691 }
692 #endif
693
694 /*
695 * simple reversible transform to make our table more evenly
696 * distributed after sorting.
697 */
698 #define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
699
700 #define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd),
701 /* ioctl should not be warned about even if it's not implemented.
702 Valid reasons to use this:
703 - It is implemented with ->compat_ioctl on some device, but programs
704 call it on others too.
705 - The ioctl is not implemented in the native kernel, but programs
706 call it commonly anyways.
707 Most other reasons are not valid. */
708 #define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd)
709
710 static unsigned int ioctl_pointer[] = {
711 /* compatible ioctls first */
712 COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */
713 COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */
714
715 /* Big T */
716 COMPATIBLE_IOCTL(TCGETA)
717 COMPATIBLE_IOCTL(TCSETA)
718 COMPATIBLE_IOCTL(TCSETAW)
719 COMPATIBLE_IOCTL(TCSETAF)
720 COMPATIBLE_IOCTL(TCSBRK)
721 COMPATIBLE_IOCTL(TCXONC)
722 COMPATIBLE_IOCTL(TCFLSH)
723 COMPATIBLE_IOCTL(TCGETS)
724 COMPATIBLE_IOCTL(TCSETS)
725 COMPATIBLE_IOCTL(TCSETSW)
726 COMPATIBLE_IOCTL(TCSETSF)
727 COMPATIBLE_IOCTL(TIOCLINUX)
728 COMPATIBLE_IOCTL(TIOCSBRK)
729 COMPATIBLE_IOCTL(TIOCGDEV)
730 COMPATIBLE_IOCTL(TIOCCBRK)
731 COMPATIBLE_IOCTL(TIOCGSID)
732 COMPATIBLE_IOCTL(TIOCGICOUNT)
733 COMPATIBLE_IOCTL(TIOCGEXCL)
734 /* Little t */
735 COMPATIBLE_IOCTL(TIOCGETD)
736 COMPATIBLE_IOCTL(TIOCSETD)
737 COMPATIBLE_IOCTL(TIOCEXCL)
738 COMPATIBLE_IOCTL(TIOCNXCL)
739 COMPATIBLE_IOCTL(TIOCCONS)
740 COMPATIBLE_IOCTL(TIOCGSOFTCAR)
741 COMPATIBLE_IOCTL(TIOCSSOFTCAR)
742 COMPATIBLE_IOCTL(TIOCSWINSZ)
743 COMPATIBLE_IOCTL(TIOCGWINSZ)
744 COMPATIBLE_IOCTL(TIOCMGET)
745 COMPATIBLE_IOCTL(TIOCMBIC)
746 COMPATIBLE_IOCTL(TIOCMBIS)
747 COMPATIBLE_IOCTL(TIOCMSET)
748 COMPATIBLE_IOCTL(TIOCNOTTY)
749 COMPATIBLE_IOCTL(TIOCSTI)
750 COMPATIBLE_IOCTL(TIOCOUTQ)
751 COMPATIBLE_IOCTL(TIOCSPGRP)
752 COMPATIBLE_IOCTL(TIOCGPGRP)
753 COMPATIBLE_IOCTL(TIOCSERGETLSR)
754 #ifdef TIOCSRS485
755 COMPATIBLE_IOCTL(TIOCSRS485)
756 #endif
757 #ifdef TIOCGRS485
758 COMPATIBLE_IOCTL(TIOCGRS485)
759 #endif
760 #ifdef TCGETS2
761 COMPATIBLE_IOCTL(TCGETS2)
762 COMPATIBLE_IOCTL(TCSETS2)
763 COMPATIBLE_IOCTL(TCSETSW2)
764 COMPATIBLE_IOCTL(TCSETSF2)
765 #endif
766 /* Little f */
767 COMPATIBLE_IOCTL(FIOCLEX)
768 COMPATIBLE_IOCTL(FIONCLEX)
769 COMPATIBLE_IOCTL(FIOASYNC)
770 COMPATIBLE_IOCTL(FIONBIO)
771 COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */
772 COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
773 /* 0x00 */
774 COMPATIBLE_IOCTL(FIBMAP)
775 COMPATIBLE_IOCTL(FIGETBSZ)
776 /* 'X' - originally XFS but some now in the VFS */
777 COMPATIBLE_IOCTL(FIFREEZE)
778 COMPATIBLE_IOCTL(FITHAW)
779 COMPATIBLE_IOCTL(FITRIM)
780 COMPATIBLE_IOCTL(KDGETKEYCODE)
781 COMPATIBLE_IOCTL(KDSETKEYCODE)
782 COMPATIBLE_IOCTL(KDGKBTYPE)
783 COMPATIBLE_IOCTL(KDGETMODE)
784 COMPATIBLE_IOCTL(KDGKBMODE)
785 COMPATIBLE_IOCTL(KDGKBMETA)
786 COMPATIBLE_IOCTL(KDGKBENT)
787 COMPATIBLE_IOCTL(KDSKBENT)
788 COMPATIBLE_IOCTL(KDGKBSENT)
789 COMPATIBLE_IOCTL(KDSKBSENT)
790 COMPATIBLE_IOCTL(KDGKBDIACR)
791 COMPATIBLE_IOCTL(KDSKBDIACR)
792 COMPATIBLE_IOCTL(KDGKBDIACRUC)
793 COMPATIBLE_IOCTL(KDSKBDIACRUC)
794 COMPATIBLE_IOCTL(KDKBDREP)
795 COMPATIBLE_IOCTL(KDGKBLED)
796 COMPATIBLE_IOCTL(KDGETLED)
797 #ifdef CONFIG_BLOCK
798 /* Big S */
799 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
800 COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
801 COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
802 COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
803 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
804 COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
805 COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
806 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
807 #endif
808 /* Big V (don't complain on serial console) */
809 IGNORE_IOCTL(VT_OPENQRY)
810 IGNORE_IOCTL(VT_GETMODE)
811 /* Little p (/dev/rtc, /dev/envctrl, etc.) */
812 COMPATIBLE_IOCTL(RTC_AIE_ON)
813 COMPATIBLE_IOCTL(RTC_AIE_OFF)
814 COMPATIBLE_IOCTL(RTC_UIE_ON)
815 COMPATIBLE_IOCTL(RTC_UIE_OFF)
816 COMPATIBLE_IOCTL(RTC_PIE_ON)
817 COMPATIBLE_IOCTL(RTC_PIE_OFF)
818 COMPATIBLE_IOCTL(RTC_WIE_ON)
819 COMPATIBLE_IOCTL(RTC_WIE_OFF)
820 COMPATIBLE_IOCTL(RTC_ALM_SET)
821 COMPATIBLE_IOCTL(RTC_ALM_READ)
822 COMPATIBLE_IOCTL(RTC_RD_TIME)
823 COMPATIBLE_IOCTL(RTC_SET_TIME)
824 COMPATIBLE_IOCTL(RTC_WKALM_SET)
825 COMPATIBLE_IOCTL(RTC_WKALM_RD)
826 /*
827 * These two are only for the sbus rtc driver, but
828 * hwclock tries them on every rtc device first when
829 * running on sparc. On other architectures the entries
830 * are useless but harmless.
831 */
832 COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
833 COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
834 /* Little m */
835 COMPATIBLE_IOCTL(MTIOCTOP)
836 /* Socket level stuff */
837 COMPATIBLE_IOCTL(FIOQSIZE)
838 #ifdef CONFIG_BLOCK
839 /* md calls this on random blockdevs */
840 IGNORE_IOCTL(RAID_VERSION)
841 /* qemu/qemu-img might call these two on plain files for probing */
842 IGNORE_IOCTL(CDROM_DRIVE_STATUS)
843 IGNORE_IOCTL(FDGETPRM32)
844 /* SG stuff */
845 COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
846 COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
847 COMPATIBLE_IOCTL(SG_EMULATED_HOST)
848 COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
849 COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
850 COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
851 COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
852 COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
853 COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
854 COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
855 COMPATIBLE_IOCTL(SG_GET_PACK_ID)
856 COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
857 COMPATIBLE_IOCTL(SG_SET_DEBUG)
858 COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
859 COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
860 COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
861 COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
862 COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
863 COMPATIBLE_IOCTL(SG_SCSI_RESET)
864 COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
865 COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
866 COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)
867 #endif
868 /* PPP stuff */
869 COMPATIBLE_IOCTL(PPPIOCGFLAGS)
870 COMPATIBLE_IOCTL(PPPIOCSFLAGS)
871 COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
872 COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
873 COMPATIBLE_IOCTL(PPPIOCGUNIT)
874 COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
875 COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
876 COMPATIBLE_IOCTL(PPPIOCGMRU)
877 COMPATIBLE_IOCTL(PPPIOCSMRU)
878 COMPATIBLE_IOCTL(PPPIOCSMAXCID)
879 COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
880 COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
881 COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
882 /* PPPIOCSCOMPRESS is translated */
883 COMPATIBLE_IOCTL(PPPIOCGNPMODE)
884 COMPATIBLE_IOCTL(PPPIOCSNPMODE)
885 COMPATIBLE_IOCTL(PPPIOCGDEBUG)
886 COMPATIBLE_IOCTL(PPPIOCSDEBUG)
887 /* PPPIOCSPASS is translated */
888 /* PPPIOCSACTIVE is translated */
889 /* PPPIOCGIDLE is translated */
890 COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
891 COMPATIBLE_IOCTL(PPPIOCATTACH)
892 COMPATIBLE_IOCTL(PPPIOCDETACH)
893 COMPATIBLE_IOCTL(PPPIOCSMRRU)
894 COMPATIBLE_IOCTL(PPPIOCCONNECT)
895 COMPATIBLE_IOCTL(PPPIOCDISCONN)
896 COMPATIBLE_IOCTL(PPPIOCATTCHAN)
897 COMPATIBLE_IOCTL(PPPIOCGCHAN)
898 COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
899 /* Big A */
900 /* sparc only */
901 /* Big Q for sound/OSS */
902 COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
903 COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
904 COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
905 COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
906 COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
907 COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
908 COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
909 COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
910 COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
911 COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
912 COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
913 COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
914 COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
915 COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
916 COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
917 COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
918 COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
919 COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
920 COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
921 COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
922 COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
923 COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
924 /* Big T for sound/OSS */
925 COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
926 COMPATIBLE_IOCTL(SNDCTL_TMR_START)
927 COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
928 COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
929 COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
930 COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
931 COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
932 COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
933 /* Little m for sound/OSS */
934 COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
935 COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
936 COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
937 /* Big P for sound/OSS */
938 COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
939 COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
940 COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
941 COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
942 COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
943 COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
944 COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
945 COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
946 COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
947 COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
948 COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
949 COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
950 COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
951 COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
952 COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
953 COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
954 COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
955 COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
956 COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
957 COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
958 /* SNDCTL_DSP_MAPINBUF, XXX needs translation */
959 /* SNDCTL_DSP_MAPOUTBUF, XXX needs translation */
960 COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
961 COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
962 COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
963 COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
964 COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
965 COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
966 COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
967 COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
968 /* Big C for sound/OSS */
969 COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
970 COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
971 COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
972 COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
973 COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
974 COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
975 COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
976 COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
977 COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
978 COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
979 /* Big M for sound/OSS */
980 COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
981 COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
982 COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
983 COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
984 COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
985 COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
986 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
987 COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
988 COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
989 COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
990 COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
991 COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
992 COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
993 COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
994 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
995 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
996 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
997 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
998 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
999 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
1000 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
1001 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
1002 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
1003 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
1004 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
1005 COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE)
1006 /* SOUND_MIXER_READ_ENHANCE, same value as READ_MUTE */
1007 /* SOUND_MIXER_READ_LOUD, same value as READ_MUTE */
1008 COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
1009 COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
1010 COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
1011 COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
1012 COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
1013 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
1014 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
1015 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
1016 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
1017 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
1018 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
1019 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
1020 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
1021 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
1022 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
1023 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
1024 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
1025 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
1026 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
1027 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
1028 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
1029 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
1030 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
1031 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
1032 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
1033 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
1034 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
1035 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
1036 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
1037 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
1038 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE)
1039 /* SOUND_MIXER_WRITE_ENHANCE, same value as WRITE_MUTE */
1040 /* SOUND_MIXER_WRITE_LOUD, same value as WRITE_MUTE */
1041 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
1042 COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
1043 COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
1044 COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
1045 COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
1046 COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
1047 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
1048 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
1049 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
1050 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
1051 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
1052 COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
1053 COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
1054 COMPATIBLE_IOCTL(OSS_GETVERSION)
1055 /* Raw devices */
1056 COMPATIBLE_IOCTL(RAW_SETBIND)
1057 COMPATIBLE_IOCTL(RAW_GETBIND)
1058 /* Watchdog */
1059 COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
1060 COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
1061 COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
1062 COMPATIBLE_IOCTL(WDIOC_GETTEMP)
1063 COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
1064 COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
1065 COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
1066 COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
1067 COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
1068 COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)
1069 /* Big R */
1070 COMPATIBLE_IOCTL(RNDGETENTCNT)
1071 COMPATIBLE_IOCTL(RNDADDTOENTCNT)
1072 COMPATIBLE_IOCTL(RNDGETPOOL)
1073 COMPATIBLE_IOCTL(RNDADDENTROPY)
1074 COMPATIBLE_IOCTL(RNDZAPENTCNT)
1075 COMPATIBLE_IOCTL(RNDCLEARPOOL)
1076 /* Bluetooth */
1077 COMPATIBLE_IOCTL(HCIDEVUP)
1078 COMPATIBLE_IOCTL(HCIDEVDOWN)
1079 COMPATIBLE_IOCTL(HCIDEVRESET)
1080 COMPATIBLE_IOCTL(HCIDEVRESTAT)
1081 COMPATIBLE_IOCTL(HCIGETDEVLIST)
1082 COMPATIBLE_IOCTL(HCIGETDEVINFO)
1083 COMPATIBLE_IOCTL(HCIGETCONNLIST)
1084 COMPATIBLE_IOCTL(HCIGETCONNINFO)
1085 COMPATIBLE_IOCTL(HCIGETAUTHINFO)
1086 COMPATIBLE_IOCTL(HCISETRAW)
1087 COMPATIBLE_IOCTL(HCISETSCAN)
1088 COMPATIBLE_IOCTL(HCISETAUTH)
1089 COMPATIBLE_IOCTL(HCISETENCRYPT)
1090 COMPATIBLE_IOCTL(HCISETPTYPE)
1091 COMPATIBLE_IOCTL(HCISETLINKPOL)
1092 COMPATIBLE_IOCTL(HCISETLINKMODE)
1093 COMPATIBLE_IOCTL(HCISETACLMTU)
1094 COMPATIBLE_IOCTL(HCISETSCOMTU)
1095 COMPATIBLE_IOCTL(HCIBLOCKADDR)
1096 COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
1097 COMPATIBLE_IOCTL(HCIINQUIRY)
1098 COMPATIBLE_IOCTL(HCIUARTSETPROTO)
1099 COMPATIBLE_IOCTL(HCIUARTGETPROTO)
1100 COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
1101 COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
1102 COMPATIBLE_IOCTL(HCIUARTGETFLAGS)
1103 COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
1104 COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
1105 COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
1106 COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
1107 COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
1108 COMPATIBLE_IOCTL(BNEPCONNADD)
1109 COMPATIBLE_IOCTL(BNEPCONNDEL)
1110 COMPATIBLE_IOCTL(BNEPGETCONNLIST)
1111 COMPATIBLE_IOCTL(BNEPGETCONNINFO)
1112 COMPATIBLE_IOCTL(BNEPGETSUPPFEAT)
1113 COMPATIBLE_IOCTL(CMTPCONNADD)
1114 COMPATIBLE_IOCTL(CMTPCONNDEL)
1115 COMPATIBLE_IOCTL(CMTPGETCONNLIST)
1116 COMPATIBLE_IOCTL(CMTPGETCONNINFO)
1117 COMPATIBLE_IOCTL(HIDPCONNADD)
1118 COMPATIBLE_IOCTL(HIDPCONNDEL)
1119 COMPATIBLE_IOCTL(HIDPGETCONNLIST)
1120 COMPATIBLE_IOCTL(HIDPGETCONNINFO)
1121 /* CAPI */
1122 COMPATIBLE_IOCTL(CAPI_REGISTER)
1123 COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
1124 COMPATIBLE_IOCTL(CAPI_GET_VERSION)
1125 COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
1126 COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
1127 COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
1128 COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
1129 COMPATIBLE_IOCTL(CAPI_INSTALLED)
1130 COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
1131 COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
1132 COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
1133 COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
1134 COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)
1135 /* Siemens Gigaset */
1136 COMPATIBLE_IOCTL(GIGASET_REDIR)
1137 COMPATIBLE_IOCTL(GIGASET_CONFIG)
1138 COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
1139 COMPATIBLE_IOCTL(GIGASET_VERSION)
1140 /* Misc. */
1141 COMPATIBLE_IOCTL(0x41545900) /* ATYIO_CLKR */
1142 COMPATIBLE_IOCTL(0x41545901) /* ATYIO_CLKW */
1143 COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
1144 COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
1145 COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
1146 COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
1147 /* hiddev */
1148 COMPATIBLE_IOCTL(HIDIOCGVERSION)
1149 COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
1150 COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
1151 COMPATIBLE_IOCTL(HIDIOCGSTRING)
1152 COMPATIBLE_IOCTL(HIDIOCINITREPORT)
1153 COMPATIBLE_IOCTL(HIDIOCGREPORT)
1154 COMPATIBLE_IOCTL(HIDIOCSREPORT)
1155 COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
1156 COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
1157 COMPATIBLE_IOCTL(HIDIOCGUSAGE)
1158 COMPATIBLE_IOCTL(HIDIOCSUSAGE)
1159 COMPATIBLE_IOCTL(HIDIOCGUCODE)
1160 COMPATIBLE_IOCTL(HIDIOCGFLAG)
1161 COMPATIBLE_IOCTL(HIDIOCSFLAG)
1162 COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
1163 COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
1164 /* dvb */
1165 COMPATIBLE_IOCTL(AUDIO_STOP)
1166 COMPATIBLE_IOCTL(AUDIO_PLAY)
1167 COMPATIBLE_IOCTL(AUDIO_PAUSE)
1168 COMPATIBLE_IOCTL(AUDIO_CONTINUE)
1169 COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
1170 COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
1171 COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
1172 COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
1173 COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
1174 COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
1175 COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
1176 COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
1177 COMPATIBLE_IOCTL(AUDIO_SET_ID)
1178 COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
1179 COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
1180 COMPATIBLE_IOCTL(DMX_START)
1181 COMPATIBLE_IOCTL(DMX_STOP)
1182 COMPATIBLE_IOCTL(DMX_SET_FILTER)
1183 COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
1184 COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
1185 COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
1186 COMPATIBLE_IOCTL(DMX_GET_STC)
1187 COMPATIBLE_IOCTL(DMX_REQBUFS)
1188 COMPATIBLE_IOCTL(DMX_QUERYBUF)
1189 COMPATIBLE_IOCTL(DMX_EXPBUF)
1190 COMPATIBLE_IOCTL(DMX_QBUF)
1191 COMPATIBLE_IOCTL(DMX_DQBUF)
1192 COMPATIBLE_IOCTL(VIDEO_STOP)
1193 COMPATIBLE_IOCTL(VIDEO_PLAY)
1194 COMPATIBLE_IOCTL(VIDEO_FREEZE)
1195 COMPATIBLE_IOCTL(VIDEO_CONTINUE)
1196 COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
1197 COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
1198 COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
1199 COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
1200 COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
1201 COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
1202 COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
1203 COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
1204 COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
1205 COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
1206 COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
1207 /* cec */
1208 COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS)
1209 COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS)
1210 COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS)
1211 COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR)
1212 COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR)
1213 COMPATIBLE_IOCTL(CEC_G_MODE)
1214 COMPATIBLE_IOCTL(CEC_S_MODE)
1215 COMPATIBLE_IOCTL(CEC_TRANSMIT)
1216 COMPATIBLE_IOCTL(CEC_RECEIVE)
1217 COMPATIBLE_IOCTL(CEC_DQEVENT)
1218
1219 /* joystick */
1220 COMPATIBLE_IOCTL(JSIOCGVERSION)
1221 COMPATIBLE_IOCTL(JSIOCGAXES)
1222 COMPATIBLE_IOCTL(JSIOCGBUTTONS)
1223 COMPATIBLE_IOCTL(JSIOCGNAME(0))
1224
1225 #ifdef TIOCGLTC
1226 COMPATIBLE_IOCTL(TIOCGLTC)
1227 COMPATIBLE_IOCTL(TIOCSLTC)
1228 #endif
1229 #ifdef TIOCSTART
1230 /*
1231 * For these two we have definitions in ioctls.h and/or termios.h on
1232 * some architectures but no actual implemention. Some applications
1233 * like bash call them if they are defined in the headers, so we provide
1234 * entries here to avoid syslog message spew.
1235 */
1236 COMPATIBLE_IOCTL(TIOCSTART)
1237 COMPATIBLE_IOCTL(TIOCSTOP)
1238 #endif
1239
1240 /* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
1241 but we don't want warnings on other file systems. So declare
1242 them as compatible here. */
1243 #define VFAT_IOCTL_READDIR_BOTH32 _IOR('r', 1, struct compat_dirent[2])
1244 #define VFAT_IOCTL_READDIR_SHORT32 _IOR('r', 2, struct compat_dirent[2])
1245
1246 IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
1247 IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
1248
1249 #ifdef CONFIG_SPARC
1250 /* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
1251 IGNORE_IOCTL(FBIOGTYPE)
1252 IGNORE_IOCTL(FBIOSATTR)
1253 IGNORE_IOCTL(FBIOGATTR)
1254 IGNORE_IOCTL(FBIOSVIDEO)
1255 IGNORE_IOCTL(FBIOGVIDEO)
1256 IGNORE_IOCTL(FBIOSCURPOS)
1257 IGNORE_IOCTL(FBIOGCURPOS)
1258 IGNORE_IOCTL(FBIOGCURMAX)
1259 IGNORE_IOCTL(FBIOPUTCMAP32)
1260 IGNORE_IOCTL(FBIOGETCMAP32)
1261 IGNORE_IOCTL(FBIOSCURSOR32)
1262 IGNORE_IOCTL(FBIOGCURSOR32)
1263 #endif
1264 };
1265
1266 /*
1267 * Convert common ioctl arguments based on their command number
1268 *
1269 * Please do not add any code in here. Instead, implement
1270 * a compat_ioctl operation in the place that handleѕ the
1271 * ioctl for the native case.
1272 */
1273 static long do_ioctl_trans(unsigned int cmd,
1274 unsigned long arg, struct file *file)
1275 {
1276 void __user *argp = compat_ptr(arg);
1277
1278 switch (cmd) {
1279 case PPPIOCGIDLE32:
1280 return ppp_gidle(file, cmd, argp);
1281 case PPPIOCSCOMPRESS32:
1282 return ppp_scompress(file, cmd, argp);
1283 case PPPIOCSPASS32:
1284 case PPPIOCSACTIVE32:
1285 return ppp_sock_fprog_ioctl_trans(file, cmd, argp);
1286 #ifdef CONFIG_BLOCK
1287 case SG_IO:
1288 return sg_ioctl_trans(file, cmd, argp);
1289 case SG_GET_REQUEST_TABLE:
1290 return sg_grt_trans(file, cmd, argp);
1291 case MTIOCGET32:
1292 case MTIOCPOS32:
1293 return mt_ioctl_trans(file, cmd, argp);
1294 #endif
1295 /* Serial */
1296 case TIOCGSERIAL:
1297 case TIOCSSERIAL:
1298 return serial_struct_ioctl(file, cmd, argp);
1299 /* Not implemented in the native kernel */
1300 case RTC_IRQP_READ32:
1301 case RTC_IRQP_SET32:
1302 case RTC_EPOCH_READ32:
1303 case RTC_EPOCH_SET32:
1304 return rtc_ioctl(file, cmd, argp);
1305
1306 /* dvb */
1307 case VIDEO_GET_EVENT32:
1308 return do_video_get_event(file, cmd, argp);
1309 case VIDEO_STILLPICTURE32:
1310 return do_video_stillpicture(file, cmd, argp);
1311 }
1312
1313 /*
1314 * These take an integer instead of a pointer as 'arg',
1315 * so we must not do a compat_ptr() translation.
1316 */
1317 switch (cmd) {
1318 /* Big T */
1319 case TCSBRKP:
1320 case TIOCMIWAIT:
1321 case TIOCSCTTY:
1322 /* RAID */
1323 case HOT_REMOVE_DISK:
1324 case HOT_ADD_DISK:
1325 case SET_DISK_FAULTY:
1326 case SET_BITMAP_FILE:
1327 /* Big K */
1328 case KDSIGACCEPT:
1329 case KIOCSOUND:
1330 case KDMKTONE:
1331 case KDSETMODE:
1332 case KDSKBMODE:
1333 case KDSKBMETA:
1334 case KDSKBLED:
1335 case KDSETLED:
1336 return vfs_ioctl(file, cmd, arg);
1337 }
1338
1339 return -ENOIOCTLCMD;
1340 }
1341
1342 static int compat_ioctl_check_table(unsigned int xcmd)
1343 {
1344 int i;
1345 const int max = ARRAY_SIZE(ioctl_pointer) - 1;
1346
1347 BUILD_BUG_ON(max >= (1 << 16));
1348
1349 /* guess initial offset into table, assuming a
1350 normalized distribution */
1351 i = ((xcmd >> 16) * max) >> 16;
1352
1353 /* do linear search up first, until greater or equal */
1354 while (ioctl_pointer[i] < xcmd && i < max)
1355 i++;
1356
1357 /* then do linear search down */
1358 while (ioctl_pointer[i] > xcmd && i > 0)
1359 i--;
1360
1361 return ioctl_pointer[i] == xcmd;
1362 }
1363
1364 COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
1365 compat_ulong_t, arg32)
1366 {
1367 unsigned long arg = arg32;
1368 struct fd f = fdget(fd);
1369 int error = -EBADF;
1370 if (!f.file)
1371 goto out;
1372
1373 /* RED-PEN how should LSM module know it's handling 32bit? */
1374 error = security_file_ioctl(f.file, cmd, arg);
1375 if (error)
1376 goto out_fput;
1377
1378 /*
1379 * To allow the compat_ioctl handlers to be self contained
1380 * we need to check the common ioctls here first.
1381 * Just handle them with the standard handlers below.
1382 */
1383 switch (cmd) {
1384 case FIOCLEX:
1385 case FIONCLEX:
1386 case FIONBIO:
1387 case FIOASYNC:
1388 case FIOQSIZE:
1389 break;
1390
1391 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
1392 case FS_IOC_RESVSP_32:
1393 case FS_IOC_RESVSP64_32:
1394 error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
1395 goto out_fput;
1396 #else
1397 case FS_IOC_RESVSP:
1398 case FS_IOC_RESVSP64:
1399 error = ioctl_preallocate(f.file, compat_ptr(arg));
1400 goto out_fput;
1401 #endif
1402
1403 case FICLONE:
1404 goto do_ioctl;
1405 case FICLONERANGE:
1406 case FIDEDUPERANGE:
1407 case FS_IOC_FIEMAP:
1408 goto found_handler;
1409
1410 case FIBMAP:
1411 case FIGETBSZ:
1412 case FIONREAD:
1413 if (S_ISREG(file_inode(f.file)->i_mode))
1414 break;
1415 /*FALL THROUGH*/
1416
1417 default:
1418 if (f.file->f_op->compat_ioctl) {
1419 error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
1420 if (error != -ENOIOCTLCMD)
1421 goto out_fput;
1422 }
1423
1424 if (!f.file->f_op->unlocked_ioctl)
1425 goto do_ioctl;
1426 break;
1427 }
1428
1429 if (compat_ioctl_check_table(XFORM(cmd)))
1430 goto found_handler;
1431
1432 error = do_ioctl_trans(cmd, arg, f.file);
1433 if (error == -ENOIOCTLCMD)
1434 error = -ENOTTY;
1435
1436 goto out_fput;
1437
1438 found_handler:
1439 arg = (unsigned long)compat_ptr(arg);
1440 do_ioctl:
1441 error = do_vfs_ioctl(f.file, fd, cmd, arg);
1442 out_fput:
1443 fdput(f);
1444 out:
1445 return error;
1446 }
1447
1448 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
1449 {
1450 unsigned int a, b;
1451 a = *(unsigned int *)p;
1452 b = *(unsigned int *)q;
1453 if (a > b)
1454 return 1;
1455 if (a < b)
1456 return -1;
1457 return 0;
1458 }
1459
1460 static int __init init_sys32_ioctl(void)
1461 {
1462 sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
1463 init_sys32_ioctl_cmp, NULL);
1464 return 0;
1465 }
1466 __initcall(init_sys32_ioctl);
Linux with added FPC-III support