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