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TOMOYO Linux Cross Reference
Linux/fs/compat_ioctl.c

Version: ~ [ linux-5.4-rc7 ] ~ [ linux-5.3.11 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.84 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.154 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.201 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.201 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.77 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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/auto_fs.h>
 42 #include <linux/auto_fs4.h>
 43 #include <linux/tty.h>
 44 #include <linux/vt_kern.h>
 45 #include <linux/fb.h>
 46 #include <linux/videodev2.h>
 47 #include <linux/netdevice.h>
 48 #include <linux/raw.h>
 49 #include <linux/blkdev.h>
 50 #include <linux/elevator.h>
 51 #include <linux/rtc.h>
 52 #include <linux/pci.h>
 53 #include <linux/serial.h>
 54 #include <linux/if_tun.h>
 55 #include <linux/ctype.h>
 56 #include <linux/syscalls.h>
 57 #include <linux/atalk.h>
 58 #include <linux/gfp.h>
 59 #include <linux/cec.h>
 60 
 61 #include "internal.h"
 62 
 63 #include <net/bluetooth/bluetooth.h>
 64 #include <net/bluetooth/hci_sock.h>
 65 #include <net/bluetooth/rfcomm.h>
 66 
 67 #include <linux/capi.h>
 68 #include <linux/gigaset_dev.h>
 69 
 70 #ifdef CONFIG_BLOCK
 71 #include <linux/cdrom.h>
 72 #include <linux/fd.h>
 73 #include <scsi/scsi.h>
 74 #include <scsi/scsi_ioctl.h>
 75 #include <scsi/sg.h>
 76 #endif
 77 
 78 #include <linux/uaccess.h>
 79 #include <linux/ethtool.h>
 80 #include <linux/mii.h>
 81 #include <linux/if_bonding.h>
 82 #include <linux/watchdog.h>
 83 
 84 #include <linux/soundcard.h>
 85 #include <linux/lp.h>
 86 #include <linux/ppdev.h>
 87 
 88 #include <linux/atm.h>
 89 #include <linux/atmarp.h>
 90 #include <linux/atmclip.h>
 91 #include <linux/atmdev.h>
 92 #include <linux/atmioc.h>
 93 #include <linux/atmlec.h>
 94 #include <linux/atmmpc.h>
 95 #include <linux/atmsvc.h>
 96 #include <linux/atm_tcp.h>
 97 #include <linux/sonet.h>
 98 #include <linux/atm_suni.h>
 99 
100 #include <linux/usb.h>
101 #include <linux/usbdevice_fs.h>
102 #include <linux/nbd.h>
103 #include <linux/random.h>
104 #include <linux/filter.h>
105 
106 #include <linux/hiddev.h>
107 
108 #define __DVB_CORE__
109 #include <linux/dvb/audio.h>
110 #include <linux/dvb/dmx.h>
111 #include <linux/dvb/frontend.h>
112 #include <linux/dvb/video.h>
113 
114 #include <linux/sort.h>
115 
116 #ifdef CONFIG_SPARC
117 #include <asm/fbio.h>
118 #endif
119 
120 #define convert_in_user(srcptr, dstptr)                 \
121 ({                                                      \
122         typeof(*srcptr) val;                            \
123                                                         \
124         get_user(val, srcptr) || put_user(val, dstptr); \
125 })
126 
127 static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
128 {
129         int err;
130 
131         err = security_file_ioctl(file, cmd, arg);
132         if (err)
133                 return err;
134 
135         return vfs_ioctl(file, cmd, arg);
136 }
137 
138 struct compat_video_event {
139         int32_t         type;
140         compat_time_t   timestamp;
141         union {
142                 video_size_t size;
143                 unsigned int frame_rate;
144         } u;
145 };
146 
147 static int do_video_get_event(struct file *file,
148                 unsigned int cmd, struct compat_video_event __user *up)
149 {
150         struct video_event __user *kevent =
151                 compat_alloc_user_space(sizeof(*kevent));
152         int err;
153 
154         if (kevent == NULL)
155                 return -EFAULT;
156 
157         err = do_ioctl(file, cmd, (unsigned long)kevent);
158         if (!err) {
159                 err  = convert_in_user(&kevent->type, &up->type);
160                 err |= convert_in_user(&kevent->timestamp, &up->timestamp);
161                 err |= convert_in_user(&kevent->u.size.w, &up->u.size.w);
162                 err |= convert_in_user(&kevent->u.size.h, &up->u.size.h);
163                 err |= convert_in_user(&kevent->u.size.aspect_ratio,
164                                 &up->u.size.aspect_ratio);
165                 if (err)
166                         err = -EFAULT;
167         }
168 
169         return err;
170 }
171 
172 struct compat_video_still_picture {
173         compat_uptr_t iFrame;
174         int32_t size;
175 };
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, cmd, (unsigned long) up_native);
199 
200         return err;
201 }
202 
203 struct compat_video_spu_palette {
204         int length;
205         compat_uptr_t palette;
206 };
207 
208 static int do_video_set_spu_palette(struct file *file,
209                 unsigned int cmd, struct compat_video_spu_palette __user *up)
210 {
211         struct video_spu_palette __user *up_native;
212         compat_uptr_t palp;
213         int length, err;
214 
215         err  = get_user(palp, &up->palette);
216         err |= get_user(length, &up->length);
217         if (err)
218                 return -EFAULT;
219 
220         up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
221         err  = put_user(compat_ptr(palp), &up_native->palette);
222         err |= put_user(length, &up_native->length);
223         if (err)
224                 return -EFAULT;
225 
226         err = do_ioctl(file, cmd, (unsigned long) up_native);
227 
228         return err;
229 }
230 
231 #ifdef CONFIG_BLOCK
232 typedef struct sg_io_hdr32 {
233         compat_int_t interface_id;      /* [i] 'S' for SCSI generic (required) */
234         compat_int_t dxfer_direction;   /* [i] data transfer direction  */
235         unsigned char cmd_len;          /* [i] SCSI command length ( <= 16 bytes) */
236         unsigned char mx_sb_len;                /* [i] max length to write to sbp */
237         unsigned short iovec_count;     /* [i] 0 implies no scatter gather */
238         compat_uint_t dxfer_len;                /* [i] byte count of data transfer */
239         compat_uint_t dxferp;           /* [i], [*io] points to data transfer memory
240                                               or scatter gather list */
241         compat_uptr_t cmdp;             /* [i], [*i] points to command to perform */
242         compat_uptr_t sbp;              /* [i], [*o] points to sense_buffer memory */
243         compat_uint_t timeout;          /* [i] MAX_UINT->no timeout (unit: millisec) */
244         compat_uint_t flags;            /* [i] 0 -> default, see SG_FLAG... */
245         compat_int_t pack_id;           /* [i->o] unused internally (normally) */
246         compat_uptr_t usr_ptr;          /* [i->o] unused internally */
247         unsigned char status;           /* [o] scsi status */
248         unsigned char masked_status;    /* [o] shifted, masked scsi status */
249         unsigned char msg_status;               /* [o] messaging level data (optional) */
250         unsigned char sb_len_wr;                /* [o] byte count actually written to sbp */
251         unsigned short host_status;     /* [o] errors from host adapter */
252         unsigned short driver_status;   /* [o] errors from software driver */
253         compat_int_t resid;             /* [o] dxfer_len - actual_transferred */
254         compat_uint_t duration;         /* [o] time taken by cmd (unit: millisec) */
255         compat_uint_t info;             /* [o] auxiliary information */
256 } sg_io_hdr32_t;  /* 64 bytes long (on sparc32) */
257 
258 typedef struct sg_iovec32 {
259         compat_uint_t iov_base;
260         compat_uint_t iov_len;
261 } sg_iovec32_t;
262 
263 static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
264 {
265         sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
266         sg_iovec32_t __user *iov32 = dxferp;
267         int i;
268 
269         for (i = 0; i < iovec_count; i++) {
270                 u32 base, len;
271 
272                 if (get_user(base, &iov32[i].iov_base) ||
273                     get_user(len, &iov32[i].iov_len) ||
274                     put_user(compat_ptr(base), &iov[i].iov_base) ||
275                     put_user(len, &iov[i].iov_len))
276                         return -EFAULT;
277         }
278 
279         if (put_user(iov, &sgio->dxferp))
280                 return -EFAULT;
281         return 0;
282 }
283 
284 static int sg_ioctl_trans(struct file *file, unsigned int cmd,
285                         sg_io_hdr32_t __user *sgio32)
286 {
287         sg_io_hdr_t __user *sgio;
288         u16 iovec_count;
289         u32 data;
290         void __user *dxferp;
291         int err;
292         int interface_id;
293 
294         if (get_user(interface_id, &sgio32->interface_id))
295                 return -EFAULT;
296         if (interface_id != 'S')
297                 return do_ioctl(file, cmd, (unsigned long)sgio32);
298 
299         if (get_user(iovec_count, &sgio32->iovec_count))
300                 return -EFAULT;
301 
302         {
303                 void __user *top = compat_alloc_user_space(0);
304                 void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) +
305                                        (iovec_count * sizeof(sg_iovec_t)));
306                 if (new > top)
307                         return -EINVAL;
308 
309                 sgio = new;
310         }
311 
312         /* Ok, now construct.  */
313         if (copy_in_user(&sgio->interface_id, &sgio32->interface_id,
314                          (2 * sizeof(int)) +
315                          (2 * sizeof(unsigned char)) +
316                          (1 * sizeof(unsigned short)) +
317                          (1 * sizeof(unsigned int))))
318                 return -EFAULT;
319 
320         if (get_user(data, &sgio32->dxferp))
321                 return -EFAULT;
322         dxferp = compat_ptr(data);
323         if (iovec_count) {
324                 if (sg_build_iovec(sgio, dxferp, iovec_count))
325                         return -EFAULT;
326         } else {
327                 if (put_user(dxferp, &sgio->dxferp))
328                         return -EFAULT;
329         }
330 
331         {
332                 unsigned char __user *cmdp;
333                 unsigned char __user *sbp;
334 
335                 if (get_user(data, &sgio32->cmdp))
336                         return -EFAULT;
337                 cmdp = compat_ptr(data);
338 
339                 if (get_user(data, &sgio32->sbp))
340                         return -EFAULT;
341                 sbp = compat_ptr(data);
342 
343                 if (put_user(cmdp, &sgio->cmdp) ||
344                     put_user(sbp, &sgio->sbp))
345                         return -EFAULT;
346         }
347 
348         if (copy_in_user(&sgio->timeout, &sgio32->timeout,
349                          3 * sizeof(int)))
350                 return -EFAULT;
351 
352         if (get_user(data, &sgio32->usr_ptr))
353                 return -EFAULT;
354         if (put_user(compat_ptr(data), &sgio->usr_ptr))
355                 return -EFAULT;
356 
357         err = do_ioctl(file, cmd, (unsigned long) sgio);
358 
359         if (err >= 0) {
360                 void __user *datap;
361 
362                 if (copy_in_user(&sgio32->pack_id, &sgio->pack_id,
363                                  sizeof(int)) ||
364                     get_user(datap, &sgio->usr_ptr) ||
365                     put_user((u32)(unsigned long)datap,
366                              &sgio32->usr_ptr) ||
367                     copy_in_user(&sgio32->status, &sgio->status,
368                                  (4 * sizeof(unsigned char)) +
369                                  (2 * sizeof(unsigned short)) +
370                                  (3 * sizeof(int))))
371                         err = -EFAULT;
372         }
373 
374         return err;
375 }
376 
377 struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
378         char req_state;
379         char orphan;
380         char sg_io_owned;
381         char problem;
382         int pack_id;
383         compat_uptr_t usr_ptr;
384         unsigned int duration;
385         int unused;
386 };
387 
388 static int sg_grt_trans(struct file *file,
389                 unsigned int cmd, struct compat_sg_req_info __user *o)
390 {
391         int err, i;
392         sg_req_info_t __user *r;
393         r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
394         err = do_ioctl(file, cmd, (unsigned long)r);
395         if (err < 0)
396                 return err;
397         for (i = 0; i < SG_MAX_QUEUE; i++) {
398                 void __user *ptr;
399                 int d;
400 
401                 if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) ||
402                     get_user(ptr, &r[i].usr_ptr) ||
403                     get_user(d, &r[i].duration) ||
404                     put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) ||
405                     put_user(d, &o[i].duration))
406                         return -EFAULT;
407         }
408         return err;
409 }
410 #endif /* CONFIG_BLOCK */
411 
412 struct sock_fprog32 {
413         unsigned short  len;
414         compat_caddr_t  filter;
415 };
416 
417 #define PPPIOCSPASS32   _IOW('t', 71, struct sock_fprog32)
418 #define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32)
419 
420 static int ppp_sock_fprog_ioctl_trans(struct file *file,
421                 unsigned int cmd, struct sock_fprog32 __user *u_fprog32)
422 {
423         struct sock_fprog __user *u_fprog64 = compat_alloc_user_space(sizeof(struct sock_fprog));
424         void __user *fptr64;
425         u32 fptr32;
426         u16 flen;
427 
428         if (get_user(flen, &u_fprog32->len) ||
429             get_user(fptr32, &u_fprog32->filter))
430                 return -EFAULT;
431 
432         fptr64 = compat_ptr(fptr32);
433 
434         if (put_user(flen, &u_fprog64->len) ||
435             put_user(fptr64, &u_fprog64->filter))
436                 return -EFAULT;
437 
438         if (cmd == PPPIOCSPASS32)
439                 cmd = PPPIOCSPASS;
440         else
441                 cmd = PPPIOCSACTIVE;
442 
443         return do_ioctl(file, cmd, (unsigned long) u_fprog64);
444 }
445 
446 struct ppp_option_data32 {
447         compat_caddr_t  ptr;
448         u32                     length;
449         compat_int_t            transmit;
450 };
451 #define PPPIOCSCOMPRESS32       _IOW('t', 77, struct ppp_option_data32)
452 
453 struct ppp_idle32 {
454         compat_time_t xmit_idle;
455         compat_time_t recv_idle;
456 };
457 #define PPPIOCGIDLE32           _IOR('t', 63, struct ppp_idle32)
458 
459 static int ppp_gidle(struct file *file, unsigned int cmd,
460                 struct ppp_idle32 __user *idle32)
461 {
462         struct ppp_idle __user *idle;
463         __kernel_time_t xmit, recv;
464         int err;
465 
466         idle = compat_alloc_user_space(sizeof(*idle));
467 
468         err = do_ioctl(file, PPPIOCGIDLE, (unsigned long) idle);
469 
470         if (!err) {
471                 if (get_user(xmit, &idle->xmit_idle) ||
472                     get_user(recv, &idle->recv_idle) ||
473                     put_user(xmit, &idle32->xmit_idle) ||
474                     put_user(recv, &idle32->recv_idle))
475                         err = -EFAULT;
476         }
477         return err;
478 }
479 
480 static int ppp_scompress(struct file *file, unsigned int cmd,
481         struct ppp_option_data32 __user *odata32)
482 {
483         struct ppp_option_data __user *odata;
484         __u32 data;
485         void __user *datap;
486 
487         odata = compat_alloc_user_space(sizeof(*odata));
488 
489         if (get_user(data, &odata32->ptr))
490                 return -EFAULT;
491 
492         datap = compat_ptr(data);
493         if (put_user(datap, &odata->ptr))
494                 return -EFAULT;
495 
496         if (copy_in_user(&odata->length, &odata32->length,
497                          sizeof(__u32) + sizeof(int)))
498                 return -EFAULT;
499 
500         return do_ioctl(file, PPPIOCSCOMPRESS, (unsigned long) odata);
501 }
502 
503 #ifdef CONFIG_BLOCK
504 struct mtget32 {
505         compat_long_t   mt_type;
506         compat_long_t   mt_resid;
507         compat_long_t   mt_dsreg;
508         compat_long_t   mt_gstat;
509         compat_long_t   mt_erreg;
510         compat_daddr_t  mt_fileno;
511         compat_daddr_t  mt_blkno;
512 };
513 #define MTIOCGET32      _IOR('m', 2, struct mtget32)
514 
515 struct mtpos32 {
516         compat_long_t   mt_blkno;
517 };
518 #define MTIOCPOS32      _IOR('m', 3, struct mtpos32)
519 
520 static int mt_ioctl_trans(struct file *file,
521                 unsigned int cmd, void __user *argp)
522 {
523         /* NULL initialization to make gcc shut up */
524         struct mtget __user *get = NULL;
525         struct mtget32 __user *umget32;
526         struct mtpos __user *pos = NULL;
527         struct mtpos32 __user *upos32;
528         unsigned long kcmd;
529         void *karg;
530         int err = 0;
531 
532         switch(cmd) {
533         case MTIOCPOS32:
534                 kcmd = MTIOCPOS;
535                 pos = compat_alloc_user_space(sizeof(*pos));
536                 karg = pos;
537                 break;
538         default:        /* MTIOCGET32 */
539                 kcmd = MTIOCGET;
540                 get = compat_alloc_user_space(sizeof(*get));
541                 karg = get;
542                 break;
543         }
544         if (karg == NULL)
545                 return -EFAULT;
546         err = do_ioctl(file, kcmd, (unsigned long)karg);
547         if (err)
548                 return err;
549         switch (cmd) {
550         case MTIOCPOS32:
551                 upos32 = argp;
552                 err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno);
553                 break;
554         case MTIOCGET32:
555                 umget32 = argp;
556                 err = convert_in_user(&get->mt_type, &umget32->mt_type);
557                 err |= convert_in_user(&get->mt_resid, &umget32->mt_resid);
558                 err |= convert_in_user(&get->mt_dsreg, &umget32->mt_dsreg);
559                 err |= convert_in_user(&get->mt_gstat, &umget32->mt_gstat);
560                 err |= convert_in_user(&get->mt_erreg, &umget32->mt_erreg);
561                 err |= convert_in_user(&get->mt_fileno, &umget32->mt_fileno);
562                 err |= convert_in_user(&get->mt_blkno, &umget32->mt_blkno);
563                 break;
564         }
565         return err ? -EFAULT: 0;
566 }
567 
568 #endif /* CONFIG_BLOCK */
569 
570 /* Bluetooth ioctls */
571 #define HCIUARTSETPROTO         _IOW('U', 200, int)
572 #define HCIUARTGETPROTO         _IOR('U', 201, int)
573 #define HCIUARTGETDEVICE        _IOR('U', 202, int)
574 #define HCIUARTSETFLAGS         _IOW('U', 203, int)
575 #define HCIUARTGETFLAGS         _IOR('U', 204, int)
576 
577 #define BNEPCONNADD     _IOW('B', 200, int)
578 #define BNEPCONNDEL     _IOW('B', 201, int)
579 #define BNEPGETCONNLIST _IOR('B', 210, int)
580 #define BNEPGETCONNINFO _IOR('B', 211, int)
581 #define BNEPGETSUPPFEAT _IOR('B', 212, int)
582 
583 #define CMTPCONNADD     _IOW('C', 200, int)
584 #define CMTPCONNDEL     _IOW('C', 201, int)
585 #define CMTPGETCONNLIST _IOR('C', 210, int)
586 #define CMTPGETCONNINFO _IOR('C', 211, int)
587 
588 #define HIDPCONNADD     _IOW('H', 200, int)
589 #define HIDPCONNDEL     _IOW('H', 201, int)
590 #define HIDPGETCONNLIST _IOR('H', 210, int)
591 #define HIDPGETCONNINFO _IOR('H', 211, int)
592 
593 
594 struct serial_struct32 {
595         compat_int_t    type;
596         compat_int_t    line;
597         compat_uint_t   port;
598         compat_int_t    irq;
599         compat_int_t    flags;
600         compat_int_t    xmit_fifo_size;
601         compat_int_t    custom_divisor;
602         compat_int_t    baud_base;
603         unsigned short  close_delay;
604         char    io_type;
605         char    reserved_char[1];
606         compat_int_t    hub6;
607         unsigned short  closing_wait; /* time to wait before closing */
608         unsigned short  closing_wait2; /* no longer used... */
609         compat_uint_t   iomem_base;
610         unsigned short  iomem_reg_shift;
611         unsigned int    port_high;
612      /* compat_ulong_t  iomap_base FIXME */
613         compat_int_t    reserved[1];
614 };
615 
616 static int serial_struct_ioctl(struct file *file,
617                 unsigned cmd, struct serial_struct32 __user *ss32)
618 {
619         typedef struct serial_struct32 SS32;
620         int err;
621         struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss));
622         __u32 udata;
623         unsigned int base;
624         unsigned char *iomem_base;
625 
626         if (ss == NULL)
627                 return -EFAULT;
628         if (cmd == TIOCSSERIAL) {
629                 if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) ||
630                     get_user(udata, &ss32->iomem_base))
631                         return -EFAULT;
632                 iomem_base = compat_ptr(udata);
633                 if (put_user(iomem_base, &ss->iomem_base) ||
634                     convert_in_user(&ss32->iomem_reg_shift,
635                       &ss->iomem_reg_shift) ||
636                     convert_in_user(&ss32->port_high, &ss->port_high) ||
637                     put_user(0UL, &ss->iomap_base))
638                         return -EFAULT;
639         }
640         err = do_ioctl(file, cmd, (unsigned long)ss);
641         if (cmd == TIOCGSERIAL && err >= 0) {
642                 if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) ||
643                     get_user(iomem_base, &ss->iomem_base))
644                         return -EFAULT;
645                 base = (unsigned long)iomem_base  >> 32 ?
646                         0xffffffff : (unsigned)(unsigned long)iomem_base;
647                 if (put_user(base, &ss32->iomem_base) ||
648                     convert_in_user(&ss->iomem_reg_shift,
649                       &ss32->iomem_reg_shift) ||
650                     convert_in_user(&ss->port_high, &ss32->port_high))
651                         return -EFAULT;
652         }
653         return err;
654 }
655 
656 #define RTC_IRQP_READ32         _IOR('p', 0x0b, compat_ulong_t)
657 #define RTC_IRQP_SET32          _IOW('p', 0x0c, compat_ulong_t)
658 #define RTC_EPOCH_READ32        _IOR('p', 0x0d, compat_ulong_t)
659 #define RTC_EPOCH_SET32         _IOW('p', 0x0e, compat_ulong_t)
660 
661 static int rtc_ioctl(struct file *file,
662                 unsigned cmd, void __user *argp)
663 {
664         unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
665         int ret;
666 
667         if (valp == NULL)
668                 return -EFAULT;
669         switch (cmd) {
670         case RTC_IRQP_READ32:
671         case RTC_EPOCH_READ32:
672                 ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ?
673                                         RTC_IRQP_READ : RTC_EPOCH_READ,
674                                         (unsigned long)valp);
675                 if (ret)
676                         return ret;
677                 return convert_in_user(valp, (unsigned int __user *)argp);
678         case RTC_IRQP_SET32:
679                 return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp);
680         case RTC_EPOCH_SET32:
681                 return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp);
682         }
683 
684         return -ENOIOCTLCMD;
685 }
686 
687 /* on ia32 l_start is on a 32-bit boundary */
688 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
689 struct space_resv_32 {
690         __s16           l_type;
691         __s16           l_whence;
692         __s64           l_start __attribute__((packed));
693                         /* len == 0 means until end of file */
694         __s64           l_len __attribute__((packed));
695         __s32           l_sysid;
696         __u32           l_pid;
697         __s32           l_pad[4];       /* reserve area */
698 };
699 
700 #define FS_IOC_RESVSP_32                _IOW ('X', 40, struct space_resv_32)
701 #define FS_IOC_RESVSP64_32      _IOW ('X', 42, struct space_resv_32)
702 
703 /* just account for different alignment */
704 static int compat_ioctl_preallocate(struct file *file,
705                         struct space_resv_32    __user *p32)
706 {
707         struct space_resv       __user *p = compat_alloc_user_space(sizeof(*p));
708 
709         if (copy_in_user(&p->l_type,    &p32->l_type,   sizeof(s16)) ||
710             copy_in_user(&p->l_whence,  &p32->l_whence, sizeof(s16)) ||
711             copy_in_user(&p->l_start,   &p32->l_start,  sizeof(s64)) ||
712             copy_in_user(&p->l_len,     &p32->l_len,    sizeof(s64)) ||
713             copy_in_user(&p->l_sysid,   &p32->l_sysid,  sizeof(s32)) ||
714             copy_in_user(&p->l_pid,     &p32->l_pid,    sizeof(u32)) ||
715             copy_in_user(&p->l_pad,     &p32->l_pad,    4*sizeof(u32)))
716                 return -EFAULT;
717 
718         return ioctl_preallocate(file, p);
719 }
720 #endif
721 
722 /*
723  * simple reversible transform to make our table more evenly
724  * distributed after sorting.
725  */
726 #define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
727 
728 #define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd),
729 /* ioctl should not be warned about even if it's not implemented.
730    Valid reasons to use this:
731    - It is implemented with ->compat_ioctl on some device, but programs
732    call it on others too.
733    - The ioctl is not implemented in the native kernel, but programs
734    call it commonly anyways.
735    Most other reasons are not valid. */
736 #define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd)
737 
738 static unsigned int ioctl_pointer[] = {
739 /* compatible ioctls first */
740 COMPATIBLE_IOCTL(0x4B50)   /* KDGHWCLK - not in the kernel, but don't complain */
741 COMPATIBLE_IOCTL(0x4B51)   /* KDSHWCLK - not in the kernel, but don't complain */
742 
743 /* Big T */
744 COMPATIBLE_IOCTL(TCGETA)
745 COMPATIBLE_IOCTL(TCSETA)
746 COMPATIBLE_IOCTL(TCSETAW)
747 COMPATIBLE_IOCTL(TCSETAF)
748 COMPATIBLE_IOCTL(TCSBRK)
749 COMPATIBLE_IOCTL(TCXONC)
750 COMPATIBLE_IOCTL(TCFLSH)
751 COMPATIBLE_IOCTL(TCGETS)
752 COMPATIBLE_IOCTL(TCSETS)
753 COMPATIBLE_IOCTL(TCSETSW)
754 COMPATIBLE_IOCTL(TCSETSF)
755 COMPATIBLE_IOCTL(TIOCLINUX)
756 COMPATIBLE_IOCTL(TIOCSBRK)
757 COMPATIBLE_IOCTL(TIOCGDEV)
758 COMPATIBLE_IOCTL(TIOCCBRK)
759 COMPATIBLE_IOCTL(TIOCGSID)
760 COMPATIBLE_IOCTL(TIOCGICOUNT)
761 COMPATIBLE_IOCTL(TIOCGEXCL)
762 /* Little t */
763 COMPATIBLE_IOCTL(TIOCGETD)
764 COMPATIBLE_IOCTL(TIOCSETD)
765 COMPATIBLE_IOCTL(TIOCEXCL)
766 COMPATIBLE_IOCTL(TIOCNXCL)
767 COMPATIBLE_IOCTL(TIOCCONS)
768 COMPATIBLE_IOCTL(TIOCGSOFTCAR)
769 COMPATIBLE_IOCTL(TIOCSSOFTCAR)
770 COMPATIBLE_IOCTL(TIOCSWINSZ)
771 COMPATIBLE_IOCTL(TIOCGWINSZ)
772 COMPATIBLE_IOCTL(TIOCMGET)
773 COMPATIBLE_IOCTL(TIOCMBIC)
774 COMPATIBLE_IOCTL(TIOCMBIS)
775 COMPATIBLE_IOCTL(TIOCMSET)
776 COMPATIBLE_IOCTL(TIOCNOTTY)
777 COMPATIBLE_IOCTL(TIOCSTI)
778 COMPATIBLE_IOCTL(TIOCOUTQ)
779 COMPATIBLE_IOCTL(TIOCSPGRP)
780 COMPATIBLE_IOCTL(TIOCGPGRP)
781 COMPATIBLE_IOCTL(TIOCSERGETLSR)
782 #ifdef TIOCSRS485
783 COMPATIBLE_IOCTL(TIOCSRS485)
784 #endif
785 #ifdef TIOCGRS485
786 COMPATIBLE_IOCTL(TIOCGRS485)
787 #endif
788 #ifdef TCGETS2
789 COMPATIBLE_IOCTL(TCGETS2)
790 COMPATIBLE_IOCTL(TCSETS2)
791 COMPATIBLE_IOCTL(TCSETSW2)
792 COMPATIBLE_IOCTL(TCSETSF2)
793 #endif
794 /* Little f */
795 COMPATIBLE_IOCTL(FIOCLEX)
796 COMPATIBLE_IOCTL(FIONCLEX)
797 COMPATIBLE_IOCTL(FIOASYNC)
798 COMPATIBLE_IOCTL(FIONBIO)
799 COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
800 COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
801 /* 0x00 */
802 COMPATIBLE_IOCTL(FIBMAP)
803 COMPATIBLE_IOCTL(FIGETBSZ)
804 /* 'X' - originally XFS but some now in the VFS */
805 COMPATIBLE_IOCTL(FIFREEZE)
806 COMPATIBLE_IOCTL(FITHAW)
807 COMPATIBLE_IOCTL(FITRIM)
808 COMPATIBLE_IOCTL(KDGETKEYCODE)
809 COMPATIBLE_IOCTL(KDSETKEYCODE)
810 COMPATIBLE_IOCTL(KDGKBTYPE)
811 COMPATIBLE_IOCTL(KDGETMODE)
812 COMPATIBLE_IOCTL(KDGKBMODE)
813 COMPATIBLE_IOCTL(KDGKBMETA)
814 COMPATIBLE_IOCTL(KDGKBENT)
815 COMPATIBLE_IOCTL(KDSKBENT)
816 COMPATIBLE_IOCTL(KDGKBSENT)
817 COMPATIBLE_IOCTL(KDSKBSENT)
818 COMPATIBLE_IOCTL(KDGKBDIACR)
819 COMPATIBLE_IOCTL(KDSKBDIACR)
820 COMPATIBLE_IOCTL(KDGKBDIACRUC)
821 COMPATIBLE_IOCTL(KDSKBDIACRUC)
822 COMPATIBLE_IOCTL(KDKBDREP)
823 COMPATIBLE_IOCTL(KDGKBLED)
824 COMPATIBLE_IOCTL(KDGETLED)
825 #ifdef CONFIG_BLOCK
826 /* Big S */
827 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
828 COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
829 COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
830 COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
831 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
832 COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
833 COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
834 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
835 #endif
836 /* Big V (don't complain on serial console) */
837 IGNORE_IOCTL(VT_OPENQRY)
838 IGNORE_IOCTL(VT_GETMODE)
839 /* Little p (/dev/rtc, /dev/envctrl, etc.) */
840 COMPATIBLE_IOCTL(RTC_AIE_ON)
841 COMPATIBLE_IOCTL(RTC_AIE_OFF)
842 COMPATIBLE_IOCTL(RTC_UIE_ON)
843 COMPATIBLE_IOCTL(RTC_UIE_OFF)
844 COMPATIBLE_IOCTL(RTC_PIE_ON)
845 COMPATIBLE_IOCTL(RTC_PIE_OFF)
846 COMPATIBLE_IOCTL(RTC_WIE_ON)
847 COMPATIBLE_IOCTL(RTC_WIE_OFF)
848 COMPATIBLE_IOCTL(RTC_ALM_SET)
849 COMPATIBLE_IOCTL(RTC_ALM_READ)
850 COMPATIBLE_IOCTL(RTC_RD_TIME)
851 COMPATIBLE_IOCTL(RTC_SET_TIME)
852 COMPATIBLE_IOCTL(RTC_WKALM_SET)
853 COMPATIBLE_IOCTL(RTC_WKALM_RD)
854 /*
855  * These two are only for the sbus rtc driver, but
856  * hwclock tries them on every rtc device first when
857  * running on sparc.  On other architectures the entries
858  * are useless but harmless.
859  */
860 COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
861 COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
862 /* Little m */
863 COMPATIBLE_IOCTL(MTIOCTOP)
864 /* Socket level stuff */
865 COMPATIBLE_IOCTL(FIOQSIZE)
866 #ifdef CONFIG_BLOCK
867 /* md calls this on random blockdevs */
868 IGNORE_IOCTL(RAID_VERSION)
869 /* qemu/qemu-img might call these two on plain files for probing */
870 IGNORE_IOCTL(CDROM_DRIVE_STATUS)
871 IGNORE_IOCTL(FDGETPRM32)
872 /* SG stuff */
873 COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
874 COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
875 COMPATIBLE_IOCTL(SG_EMULATED_HOST)
876 COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
877 COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
878 COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
879 COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
880 COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
881 COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
882 COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
883 COMPATIBLE_IOCTL(SG_GET_PACK_ID)
884 COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
885 COMPATIBLE_IOCTL(SG_SET_DEBUG)
886 COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
887 COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
888 COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
889 COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
890 COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
891 COMPATIBLE_IOCTL(SG_SCSI_RESET)
892 COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
893 COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
894 COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)
895 #endif
896 /* PPP stuff */
897 COMPATIBLE_IOCTL(PPPIOCGFLAGS)
898 COMPATIBLE_IOCTL(PPPIOCSFLAGS)
899 COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
900 COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
901 COMPATIBLE_IOCTL(PPPIOCGUNIT)
902 COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
903 COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
904 COMPATIBLE_IOCTL(PPPIOCGMRU)
905 COMPATIBLE_IOCTL(PPPIOCSMRU)
906 COMPATIBLE_IOCTL(PPPIOCSMAXCID)
907 COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
908 COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
909 COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
910 /* PPPIOCSCOMPRESS is translated */
911 COMPATIBLE_IOCTL(PPPIOCGNPMODE)
912 COMPATIBLE_IOCTL(PPPIOCSNPMODE)
913 COMPATIBLE_IOCTL(PPPIOCGDEBUG)
914 COMPATIBLE_IOCTL(PPPIOCSDEBUG)
915 /* PPPIOCSPASS is translated */
916 /* PPPIOCSACTIVE is translated */
917 /* PPPIOCGIDLE is translated */
918 COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
919 COMPATIBLE_IOCTL(PPPIOCATTACH)
920 COMPATIBLE_IOCTL(PPPIOCDETACH)
921 COMPATIBLE_IOCTL(PPPIOCSMRRU)
922 COMPATIBLE_IOCTL(PPPIOCCONNECT)
923 COMPATIBLE_IOCTL(PPPIOCDISCONN)
924 COMPATIBLE_IOCTL(PPPIOCATTCHAN)
925 COMPATIBLE_IOCTL(PPPIOCGCHAN)
926 COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
927 /* PPPOX */
928 COMPATIBLE_IOCTL(PPPOEIOCSFWD)
929 COMPATIBLE_IOCTL(PPPOEIOCDFWD)
930 /* Big A */
931 /* sparc only */
932 /* Big Q for sound/OSS */
933 COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
934 COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
935 COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
936 COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
937 COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
938 COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
939 COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
940 COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
941 COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
942 COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
943 COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
944 COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
945 COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
946 COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
947 COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
948 COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
949 COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
950 COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
951 COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
952 COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
953 COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
954 COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
955 /* Big T for sound/OSS */
956 COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
957 COMPATIBLE_IOCTL(SNDCTL_TMR_START)
958 COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
959 COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
960 COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
961 COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
962 COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
963 COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
964 /* Little m for sound/OSS */
965 COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
966 COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
967 COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
968 /* Big P for sound/OSS */
969 COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
970 COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
971 COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
972 COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
973 COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
974 COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
975 COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
976 COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
977 COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
978 COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
979 COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
980 COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
981 COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
982 COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
983 COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
984 COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
985 COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
986 COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
987 COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
988 COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
989 /* SNDCTL_DSP_MAPINBUF,  XXX needs translation */
990 /* SNDCTL_DSP_MAPOUTBUF,  XXX needs translation */
991 COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
992 COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
993 COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
994 COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
995 COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
996 COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
997 COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
998 COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
999 /* Big C for sound/OSS */
1000 COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
1001 COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
1002 COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
1003 COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
1004 COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
1005 COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
1006 COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
1007 COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
1008 COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
1009 COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
1010 /* Big M for sound/OSS */
1011 COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
1012 COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
1013 COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
1014 COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
1015 COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
1016 COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
1017 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
1018 COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
1019 COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
1020 COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
1021 COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
1022 COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
1023 COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
1024 COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
1025 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
1026 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
1027 COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
1028 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
1029 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
1030 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
1031 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
1032 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
1033 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
1034 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
1035 COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
1036 COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE)
1037 /* SOUND_MIXER_READ_ENHANCE,  same value as READ_MUTE */
1038 /* SOUND_MIXER_READ_LOUD,  same value as READ_MUTE */
1039 COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
1040 COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
1041 COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
1042 COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
1043 COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
1044 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
1045 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
1046 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
1047 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
1048 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
1049 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
1050 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
1051 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
1052 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
1053 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
1054 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
1055 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
1056 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
1057 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
1058 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
1059 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
1060 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
1061 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
1062 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
1063 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
1064 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
1065 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
1066 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
1067 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
1068 COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
1069 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE)
1070 /* SOUND_MIXER_WRITE_ENHANCE,  same value as WRITE_MUTE */
1071 /* SOUND_MIXER_WRITE_LOUD,  same value as WRITE_MUTE */
1072 COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
1073 COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
1074 COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
1075 COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
1076 COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
1077 COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
1078 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
1079 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
1080 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
1081 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
1082 COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
1083 COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
1084 COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
1085 COMPATIBLE_IOCTL(OSS_GETVERSION)
1086 /* Raw devices */
1087 COMPATIBLE_IOCTL(RAW_SETBIND)
1088 COMPATIBLE_IOCTL(RAW_GETBIND)
1089 /* Watchdog */
1090 COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
1091 COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
1092 COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
1093 COMPATIBLE_IOCTL(WDIOC_GETTEMP)
1094 COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
1095 COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
1096 COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
1097 COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
1098 COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
1099 COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)
1100 /* Big R */
1101 COMPATIBLE_IOCTL(RNDGETENTCNT)
1102 COMPATIBLE_IOCTL(RNDADDTOENTCNT)
1103 COMPATIBLE_IOCTL(RNDGETPOOL)
1104 COMPATIBLE_IOCTL(RNDADDENTROPY)
1105 COMPATIBLE_IOCTL(RNDZAPENTCNT)
1106 COMPATIBLE_IOCTL(RNDCLEARPOOL)
1107 /* Bluetooth */
1108 COMPATIBLE_IOCTL(HCIDEVUP)
1109 COMPATIBLE_IOCTL(HCIDEVDOWN)
1110 COMPATIBLE_IOCTL(HCIDEVRESET)
1111 COMPATIBLE_IOCTL(HCIDEVRESTAT)
1112 COMPATIBLE_IOCTL(HCIGETDEVLIST)
1113 COMPATIBLE_IOCTL(HCIGETDEVINFO)
1114 COMPATIBLE_IOCTL(HCIGETCONNLIST)
1115 COMPATIBLE_IOCTL(HCIGETCONNINFO)
1116 COMPATIBLE_IOCTL(HCIGETAUTHINFO)
1117 COMPATIBLE_IOCTL(HCISETRAW)
1118 COMPATIBLE_IOCTL(HCISETSCAN)
1119 COMPATIBLE_IOCTL(HCISETAUTH)
1120 COMPATIBLE_IOCTL(HCISETENCRYPT)
1121 COMPATIBLE_IOCTL(HCISETPTYPE)
1122 COMPATIBLE_IOCTL(HCISETLINKPOL)
1123 COMPATIBLE_IOCTL(HCISETLINKMODE)
1124 COMPATIBLE_IOCTL(HCISETACLMTU)
1125 COMPATIBLE_IOCTL(HCISETSCOMTU)
1126 COMPATIBLE_IOCTL(HCIBLOCKADDR)
1127 COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
1128 COMPATIBLE_IOCTL(HCIINQUIRY)
1129 COMPATIBLE_IOCTL(HCIUARTSETPROTO)
1130 COMPATIBLE_IOCTL(HCIUARTGETPROTO)
1131 COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
1132 COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
1133 COMPATIBLE_IOCTL(HCIUARTGETFLAGS)
1134 COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
1135 COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
1136 COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
1137 COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
1138 COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
1139 COMPATIBLE_IOCTL(BNEPCONNADD)
1140 COMPATIBLE_IOCTL(BNEPCONNDEL)
1141 COMPATIBLE_IOCTL(BNEPGETCONNLIST)
1142 COMPATIBLE_IOCTL(BNEPGETCONNINFO)
1143 COMPATIBLE_IOCTL(BNEPGETSUPPFEAT)
1144 COMPATIBLE_IOCTL(CMTPCONNADD)
1145 COMPATIBLE_IOCTL(CMTPCONNDEL)
1146 COMPATIBLE_IOCTL(CMTPGETCONNLIST)
1147 COMPATIBLE_IOCTL(CMTPGETCONNINFO)
1148 COMPATIBLE_IOCTL(HIDPCONNADD)
1149 COMPATIBLE_IOCTL(HIDPCONNDEL)
1150 COMPATIBLE_IOCTL(HIDPGETCONNLIST)
1151 COMPATIBLE_IOCTL(HIDPGETCONNINFO)
1152 /* CAPI */
1153 COMPATIBLE_IOCTL(CAPI_REGISTER)
1154 COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
1155 COMPATIBLE_IOCTL(CAPI_GET_VERSION)
1156 COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
1157 COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
1158 COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
1159 COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
1160 COMPATIBLE_IOCTL(CAPI_INSTALLED)
1161 COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
1162 COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
1163 COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
1164 COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
1165 COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)
1166 /* Siemens Gigaset */
1167 COMPATIBLE_IOCTL(GIGASET_REDIR)
1168 COMPATIBLE_IOCTL(GIGASET_CONFIG)
1169 COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
1170 COMPATIBLE_IOCTL(GIGASET_VERSION)
1171 /* Misc. */
1172 COMPATIBLE_IOCTL(0x41545900)            /* ATYIO_CLKR */
1173 COMPATIBLE_IOCTL(0x41545901)            /* ATYIO_CLKW */
1174 COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
1175 COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
1176 COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
1177 COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
1178 /* hiddev */
1179 COMPATIBLE_IOCTL(HIDIOCGVERSION)
1180 COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
1181 COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
1182 COMPATIBLE_IOCTL(HIDIOCGSTRING)
1183 COMPATIBLE_IOCTL(HIDIOCINITREPORT)
1184 COMPATIBLE_IOCTL(HIDIOCGREPORT)
1185 COMPATIBLE_IOCTL(HIDIOCSREPORT)
1186 COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
1187 COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
1188 COMPATIBLE_IOCTL(HIDIOCGUSAGE)
1189 COMPATIBLE_IOCTL(HIDIOCSUSAGE)
1190 COMPATIBLE_IOCTL(HIDIOCGUCODE)
1191 COMPATIBLE_IOCTL(HIDIOCGFLAG)
1192 COMPATIBLE_IOCTL(HIDIOCSFLAG)
1193 COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
1194 COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
1195 /* dvb */
1196 COMPATIBLE_IOCTL(AUDIO_STOP)
1197 COMPATIBLE_IOCTL(AUDIO_PLAY)
1198 COMPATIBLE_IOCTL(AUDIO_PAUSE)
1199 COMPATIBLE_IOCTL(AUDIO_CONTINUE)
1200 COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
1201 COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
1202 COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
1203 COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
1204 COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
1205 COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
1206 COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
1207 COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
1208 COMPATIBLE_IOCTL(AUDIO_SET_ID)
1209 COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
1210 COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
1211 COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID)
1212 COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES)
1213 COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE)
1214 COMPATIBLE_IOCTL(DMX_START)
1215 COMPATIBLE_IOCTL(DMX_STOP)
1216 COMPATIBLE_IOCTL(DMX_SET_FILTER)
1217 COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
1218 COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
1219 COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
1220 COMPATIBLE_IOCTL(DMX_GET_STC)
1221 COMPATIBLE_IOCTL(DMX_REQBUFS)
1222 COMPATIBLE_IOCTL(DMX_QUERYBUF)
1223 COMPATIBLE_IOCTL(DMX_EXPBUF)
1224 COMPATIBLE_IOCTL(DMX_QBUF)
1225 COMPATIBLE_IOCTL(DMX_DQBUF)
1226 COMPATIBLE_IOCTL(VIDEO_STOP)
1227 COMPATIBLE_IOCTL(VIDEO_PLAY)
1228 COMPATIBLE_IOCTL(VIDEO_FREEZE)
1229 COMPATIBLE_IOCTL(VIDEO_CONTINUE)
1230 COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
1231 COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
1232 COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
1233 COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
1234 COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
1235 COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
1236 COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
1237 COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
1238 COMPATIBLE_IOCTL(VIDEO_SET_ID)
1239 COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
1240 COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
1241 COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM)
1242 COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT)
1243 COMPATIBLE_IOCTL(VIDEO_SET_SPU)
1244 COMPATIBLE_IOCTL(VIDEO_GET_NAVI)
1245 COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES)
1246 COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
1247 COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE)
1248 /* cec */
1249 COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS)
1250 COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS)
1251 COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS)
1252 COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR)
1253 COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR)
1254 COMPATIBLE_IOCTL(CEC_G_MODE)
1255 COMPATIBLE_IOCTL(CEC_S_MODE)
1256 COMPATIBLE_IOCTL(CEC_TRANSMIT)
1257 COMPATIBLE_IOCTL(CEC_RECEIVE)
1258 COMPATIBLE_IOCTL(CEC_DQEVENT)
1259 
1260 /* joystick */
1261 COMPATIBLE_IOCTL(JSIOCGVERSION)
1262 COMPATIBLE_IOCTL(JSIOCGAXES)
1263 COMPATIBLE_IOCTL(JSIOCGBUTTONS)
1264 COMPATIBLE_IOCTL(JSIOCGNAME(0))
1265 
1266 #ifdef TIOCGLTC
1267 COMPATIBLE_IOCTL(TIOCGLTC)
1268 COMPATIBLE_IOCTL(TIOCSLTC)
1269 #endif
1270 #ifdef TIOCSTART
1271 /*
1272  * For these two we have definitions in ioctls.h and/or termios.h on
1273  * some architectures but no actual implemention.  Some applications
1274  * like bash call them if they are defined in the headers, so we provide
1275  * entries here to avoid syslog message spew.
1276  */
1277 COMPATIBLE_IOCTL(TIOCSTART)
1278 COMPATIBLE_IOCTL(TIOCSTOP)
1279 #endif
1280 
1281 /* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
1282    but we don't want warnings on other file systems. So declare
1283    them as compatible here. */
1284 #define VFAT_IOCTL_READDIR_BOTH32       _IOR('r', 1, struct compat_dirent[2])
1285 #define VFAT_IOCTL_READDIR_SHORT32      _IOR('r', 2, struct compat_dirent[2])
1286 
1287 IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
1288 IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
1289 
1290 #ifdef CONFIG_SPARC
1291 /* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
1292 IGNORE_IOCTL(FBIOGTYPE)
1293 IGNORE_IOCTL(FBIOSATTR)
1294 IGNORE_IOCTL(FBIOGATTR)
1295 IGNORE_IOCTL(FBIOSVIDEO)
1296 IGNORE_IOCTL(FBIOGVIDEO)
1297 IGNORE_IOCTL(FBIOSCURPOS)
1298 IGNORE_IOCTL(FBIOGCURPOS)
1299 IGNORE_IOCTL(FBIOGCURMAX)
1300 IGNORE_IOCTL(FBIOPUTCMAP32)
1301 IGNORE_IOCTL(FBIOGETCMAP32)
1302 IGNORE_IOCTL(FBIOSCURSOR32)
1303 IGNORE_IOCTL(FBIOGCURSOR32)
1304 #endif
1305 };
1306 
1307 /*
1308  * Convert common ioctl arguments based on their command number
1309  *
1310  * Please do not add any code in here. Instead, implement
1311  * a compat_ioctl operation in the place that handleѕ the
1312  * ioctl for the native case.
1313  */
1314 static long do_ioctl_trans(unsigned int cmd,
1315                  unsigned long arg, struct file *file)
1316 {
1317         void __user *argp = compat_ptr(arg);
1318 
1319         switch (cmd) {
1320         case PPPIOCGIDLE32:
1321                 return ppp_gidle(file, cmd, argp);
1322         case PPPIOCSCOMPRESS32:
1323                 return ppp_scompress(file, cmd, argp);
1324         case PPPIOCSPASS32:
1325         case PPPIOCSACTIVE32:
1326                 return ppp_sock_fprog_ioctl_trans(file, cmd, argp);
1327 #ifdef CONFIG_BLOCK
1328         case SG_IO:
1329                 return sg_ioctl_trans(file, cmd, argp);
1330         case SG_GET_REQUEST_TABLE:
1331                 return sg_grt_trans(file, cmd, argp);
1332         case MTIOCGET32:
1333         case MTIOCPOS32:
1334                 return mt_ioctl_trans(file, cmd, argp);
1335 #endif
1336         /* Serial */
1337         case TIOCGSERIAL:
1338         case TIOCSSERIAL:
1339                 return serial_struct_ioctl(file, cmd, argp);
1340         /* Not implemented in the native kernel */
1341         case RTC_IRQP_READ32:
1342         case RTC_IRQP_SET32:
1343         case RTC_EPOCH_READ32:
1344         case RTC_EPOCH_SET32:
1345                 return rtc_ioctl(file, cmd, argp);
1346 
1347         /* dvb */
1348         case VIDEO_GET_EVENT:
1349                 return do_video_get_event(file, cmd, argp);
1350         case VIDEO_STILLPICTURE:
1351                 return do_video_stillpicture(file, cmd, argp);
1352         case VIDEO_SET_SPU_PALETTE:
1353                 return do_video_set_spu_palette(file, cmd, argp);
1354         }
1355 
1356         /*
1357          * These take an integer instead of a pointer as 'arg',
1358          * so we must not do a compat_ptr() translation.
1359          */
1360         switch (cmd) {
1361         /* Big T */
1362         case TCSBRKP:
1363         case TIOCMIWAIT:
1364         case TIOCSCTTY:
1365         /* RAID */
1366         case HOT_REMOVE_DISK:
1367         case HOT_ADD_DISK:
1368         case SET_DISK_FAULTY:
1369         case SET_BITMAP_FILE:
1370         /* Big K */
1371         case KDSIGACCEPT:
1372         case KIOCSOUND:
1373         case KDMKTONE:
1374         case KDSETMODE:
1375         case KDSKBMODE:
1376         case KDSKBMETA:
1377         case KDSKBLED:
1378         case KDSETLED:
1379                 return vfs_ioctl(file, cmd, arg);
1380         }
1381 
1382         return -ENOIOCTLCMD;
1383 }
1384 
1385 static int compat_ioctl_check_table(unsigned int xcmd)
1386 {
1387         int i;
1388         const int max = ARRAY_SIZE(ioctl_pointer) - 1;
1389 
1390         BUILD_BUG_ON(max >= (1 << 16));
1391 
1392         /* guess initial offset into table, assuming a
1393            normalized distribution */
1394         i = ((xcmd >> 16) * max) >> 16;
1395 
1396         /* do linear search up first, until greater or equal */
1397         while (ioctl_pointer[i] < xcmd && i < max)
1398                 i++;
1399 
1400         /* then do linear search down */
1401         while (ioctl_pointer[i] > xcmd && i > 0)
1402                 i--;
1403 
1404         return ioctl_pointer[i] == xcmd;
1405 }
1406 
1407 COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
1408                        compat_ulong_t, arg32)
1409 {
1410         unsigned long arg = arg32;
1411         struct fd f = fdget(fd);
1412         int error = -EBADF;
1413         if (!f.file)
1414                 goto out;
1415 
1416         /* RED-PEN how should LSM module know it's handling 32bit? */
1417         error = security_file_ioctl(f.file, cmd, arg);
1418         if (error)
1419                 goto out_fput;
1420 
1421         /*
1422          * To allow the compat_ioctl handlers to be self contained
1423          * we need to check the common ioctls here first.
1424          * Just handle them with the standard handlers below.
1425          */
1426         switch (cmd) {
1427         case FIOCLEX:
1428         case FIONCLEX:
1429         case FIONBIO:
1430         case FIOASYNC:
1431         case FIOQSIZE:
1432                 break;
1433 
1434 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
1435         case FS_IOC_RESVSP_32:
1436         case FS_IOC_RESVSP64_32:
1437                 error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
1438                 goto out_fput;
1439 #else
1440         case FS_IOC_RESVSP:
1441         case FS_IOC_RESVSP64:
1442                 error = ioctl_preallocate(f.file, compat_ptr(arg));
1443                 goto out_fput;
1444 #endif
1445 
1446         case FICLONE:
1447         case FICLONERANGE:
1448         case FIDEDUPERANGE:
1449         case FS_IOC_FIEMAP:
1450                 goto do_ioctl;
1451 
1452         case FIBMAP:
1453         case FIGETBSZ:
1454         case FIONREAD:
1455                 if (S_ISREG(file_inode(f.file)->i_mode))
1456                         break;
1457                 /*FALL THROUGH*/
1458 
1459         default:
1460                 if (f.file->f_op->compat_ioctl) {
1461                         error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
1462                         if (error != -ENOIOCTLCMD)
1463                                 goto out_fput;
1464                 }
1465 
1466                 if (!f.file->f_op->unlocked_ioctl)
1467                         goto do_ioctl;
1468                 break;
1469         }
1470 
1471         if (compat_ioctl_check_table(XFORM(cmd)))
1472                 goto found_handler;
1473 
1474         error = do_ioctl_trans(cmd, arg, f.file);
1475         if (error == -ENOIOCTLCMD)
1476                 error = -ENOTTY;
1477 
1478         goto out_fput;
1479 
1480  found_handler:
1481         arg = (unsigned long)compat_ptr(arg);
1482  do_ioctl:
1483         error = do_vfs_ioctl(f.file, fd, cmd, arg);
1484  out_fput:
1485         fdput(f);
1486  out:
1487         return error;
1488 }
1489 
1490 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
1491 {
1492         unsigned int a, b;
1493         a = *(unsigned int *)p;
1494         b = *(unsigned int *)q;
1495         if (a > b)
1496                 return 1;
1497         if (a < b)
1498                 return -1;
1499         return 0;
1500 }
1501 
1502 static int __init init_sys32_ioctl(void)
1503 {
1504         sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
1505                 init_sys32_ioctl_cmp, NULL);
1506         return 0;
1507 }
1508 __initcall(init_sys32_ioctl);
1509 

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