linux/fs/compat_ioctl.c
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   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
 125static 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
 136struct 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
 145static 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
 170struct compat_video_still_picture {
 171        compat_uptr_t iFrame;
 172        int32_t size;
 173};
 174
 175static 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
 202typedef 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
 228typedef struct sg_iovec32 {
 229        compat_uint_t iov_base;
 230        compat_uint_t iov_len;
 231} sg_iovec32_t;
 232
 233static 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
 254static 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
 347struct 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
 358static 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
 382struct 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
 390static 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
 416struct 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
 423struct 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
 429static 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
 450static 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
 474struct 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
 485struct mtpos32 {
 486        compat_long_t   mt_blkno;
 487};
 488#define MTIOCPOS32      _IOR('m', 3, struct mtpos32)
 489
 490static 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
 564struct 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
 586static 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
 631static 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)
 659struct 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 */
 674static 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
 708static unsigned int ioctl_pointer[] = {
 709/* compatible ioctls first */
 710COMPATIBLE_IOCTL(0x4B50)   /* KDGHWCLK - not in the kernel, but don't complain */
 711COMPATIBLE_IOCTL(0x4B51)   /* KDSHWCLK - not in the kernel, but don't complain */
 712
 713/* Big T */
 714COMPATIBLE_IOCTL(TCGETA)
 715COMPATIBLE_IOCTL(TCSETA)
 716COMPATIBLE_IOCTL(TCSETAW)
 717COMPATIBLE_IOCTL(TCSETAF)
 718COMPATIBLE_IOCTL(TCSBRK)
 719COMPATIBLE_IOCTL(TCXONC)
 720COMPATIBLE_IOCTL(TCFLSH)
 721COMPATIBLE_IOCTL(TCGETS)
 722COMPATIBLE_IOCTL(TCSETS)
 723COMPATIBLE_IOCTL(TCSETSW)
 724COMPATIBLE_IOCTL(TCSETSF)
 725COMPATIBLE_IOCTL(TIOCLINUX)
 726COMPATIBLE_IOCTL(TIOCSBRK)
 727COMPATIBLE_IOCTL(TIOCGDEV)
 728COMPATIBLE_IOCTL(TIOCCBRK)
 729COMPATIBLE_IOCTL(TIOCGSID)
 730COMPATIBLE_IOCTL(TIOCGICOUNT)
 731COMPATIBLE_IOCTL(TIOCGEXCL)
 732/* Little t */
 733COMPATIBLE_IOCTL(TIOCGETD)
 734COMPATIBLE_IOCTL(TIOCSETD)
 735COMPATIBLE_IOCTL(TIOCEXCL)
 736COMPATIBLE_IOCTL(TIOCNXCL)
 737COMPATIBLE_IOCTL(TIOCCONS)
 738COMPATIBLE_IOCTL(TIOCGSOFTCAR)
 739COMPATIBLE_IOCTL(TIOCSSOFTCAR)
 740COMPATIBLE_IOCTL(TIOCSWINSZ)
 741COMPATIBLE_IOCTL(TIOCGWINSZ)
 742COMPATIBLE_IOCTL(TIOCMGET)
 743COMPATIBLE_IOCTL(TIOCMBIC)
 744COMPATIBLE_IOCTL(TIOCMBIS)
 745COMPATIBLE_IOCTL(TIOCMSET)
 746COMPATIBLE_IOCTL(TIOCNOTTY)
 747COMPATIBLE_IOCTL(TIOCSTI)
 748COMPATIBLE_IOCTL(TIOCOUTQ)
 749COMPATIBLE_IOCTL(TIOCSPGRP)
 750COMPATIBLE_IOCTL(TIOCGPGRP)
 751COMPATIBLE_IOCTL(TIOCSERGETLSR)
 752#ifdef TIOCSRS485
 753COMPATIBLE_IOCTL(TIOCSRS485)
 754#endif
 755#ifdef TIOCGRS485
 756COMPATIBLE_IOCTL(TIOCGRS485)
 757#endif
 758#ifdef TCGETS2
 759COMPATIBLE_IOCTL(TCGETS2)
 760COMPATIBLE_IOCTL(TCSETS2)
 761COMPATIBLE_IOCTL(TCSETSW2)
 762COMPATIBLE_IOCTL(TCSETSF2)
 763#endif
 764/* Little f */
 765COMPATIBLE_IOCTL(FIOCLEX)
 766COMPATIBLE_IOCTL(FIONCLEX)
 767COMPATIBLE_IOCTL(FIOASYNC)
 768COMPATIBLE_IOCTL(FIONBIO)
 769COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
 770COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
 771/* 0x00 */
 772COMPATIBLE_IOCTL(FIBMAP)
 773COMPATIBLE_IOCTL(FIGETBSZ)
 774/* 'X' - originally XFS but some now in the VFS */
 775COMPATIBLE_IOCTL(FIFREEZE)
 776COMPATIBLE_IOCTL(FITHAW)
 777COMPATIBLE_IOCTL(FITRIM)
 778COMPATIBLE_IOCTL(KDGETKEYCODE)
 779COMPATIBLE_IOCTL(KDSETKEYCODE)
 780COMPATIBLE_IOCTL(KDGKBTYPE)
 781COMPATIBLE_IOCTL(KDGETMODE)
 782COMPATIBLE_IOCTL(KDGKBMODE)
 783COMPATIBLE_IOCTL(KDGKBMETA)
 784COMPATIBLE_IOCTL(KDGKBENT)
 785COMPATIBLE_IOCTL(KDSKBENT)
 786COMPATIBLE_IOCTL(KDGKBSENT)
 787COMPATIBLE_IOCTL(KDSKBSENT)
 788COMPATIBLE_IOCTL(KDGKBDIACR)
 789COMPATIBLE_IOCTL(KDSKBDIACR)
 790COMPATIBLE_IOCTL(KDGKBDIACRUC)
 791COMPATIBLE_IOCTL(KDSKBDIACRUC)
 792COMPATIBLE_IOCTL(KDKBDREP)
 793COMPATIBLE_IOCTL(KDGKBLED)
 794COMPATIBLE_IOCTL(KDGETLED)
 795#ifdef CONFIG_BLOCK
 796/* Big S */
 797COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
 798COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
 799COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
 800COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
 801COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
 802COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
 803COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
 804COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
 805#endif
 806/* Big V (don't complain on serial console) */
 807IGNORE_IOCTL(VT_OPENQRY)
 808IGNORE_IOCTL(VT_GETMODE)
 809/* Little p (/dev/rtc, /dev/envctrl, etc.) */
 810COMPATIBLE_IOCTL(RTC_AIE_ON)
 811COMPATIBLE_IOCTL(RTC_AIE_OFF)
 812COMPATIBLE_IOCTL(RTC_UIE_ON)
 813COMPATIBLE_IOCTL(RTC_UIE_OFF)
 814COMPATIBLE_IOCTL(RTC_PIE_ON)
 815COMPATIBLE_IOCTL(RTC_PIE_OFF)
 816COMPATIBLE_IOCTL(RTC_WIE_ON)
 817COMPATIBLE_IOCTL(RTC_WIE_OFF)
 818COMPATIBLE_IOCTL(RTC_ALM_SET)
 819COMPATIBLE_IOCTL(RTC_ALM_READ)
 820COMPATIBLE_IOCTL(RTC_RD_TIME)
 821COMPATIBLE_IOCTL(RTC_SET_TIME)
 822COMPATIBLE_IOCTL(RTC_WKALM_SET)
 823COMPATIBLE_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 */
 830COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
 831COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
 832/* Little m */
 833COMPATIBLE_IOCTL(MTIOCTOP)
 834/* Socket level stuff */
 835COMPATIBLE_IOCTL(FIOQSIZE)
 836#ifdef CONFIG_BLOCK
 837/* md calls this on random blockdevs */
 838IGNORE_IOCTL(RAID_VERSION)
 839/* qemu/qemu-img might call these two on plain files for probing */
 840IGNORE_IOCTL(CDROM_DRIVE_STATUS)
 841IGNORE_IOCTL(FDGETPRM32)
 842/* SG stuff */
 843COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
 844COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
 845COMPATIBLE_IOCTL(SG_EMULATED_HOST)
 846COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
 847COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
 848COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
 849COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
 850COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
 851COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
 852COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
 853COMPATIBLE_IOCTL(SG_GET_PACK_ID)
 854COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
 855COMPATIBLE_IOCTL(SG_SET_DEBUG)
 856COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
 857COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
 858COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
 859COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
 860COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
 861COMPATIBLE_IOCTL(SG_SCSI_RESET)
 862COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
 863COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
 864COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)
 865#endif
 866/* PPP stuff */
 867COMPATIBLE_IOCTL(PPPIOCGFLAGS)
 868COMPATIBLE_IOCTL(PPPIOCSFLAGS)
 869COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
 870COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
 871COMPATIBLE_IOCTL(PPPIOCGUNIT)
 872COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
 873COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
 874COMPATIBLE_IOCTL(PPPIOCGMRU)
 875COMPATIBLE_IOCTL(PPPIOCSMRU)
 876COMPATIBLE_IOCTL(PPPIOCSMAXCID)
 877COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
 878COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
 879COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
 880/* PPPIOCSCOMPRESS is translated */
 881COMPATIBLE_IOCTL(PPPIOCGNPMODE)
 882COMPATIBLE_IOCTL(PPPIOCSNPMODE)
 883COMPATIBLE_IOCTL(PPPIOCGDEBUG)
 884COMPATIBLE_IOCTL(PPPIOCSDEBUG)
 885/* PPPIOCSPASS is translated */
 886/* PPPIOCSACTIVE is translated */
 887/* PPPIOCGIDLE is translated */
 888COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
 889COMPATIBLE_IOCTL(PPPIOCATTACH)
 890COMPATIBLE_IOCTL(PPPIOCDETACH)
 891COMPATIBLE_IOCTL(PPPIOCSMRRU)
 892COMPATIBLE_IOCTL(PPPIOCCONNECT)
 893COMPATIBLE_IOCTL(PPPIOCDISCONN)
 894COMPATIBLE_IOCTL(PPPIOCATTCHAN)
 895COMPATIBLE_IOCTL(PPPIOCGCHAN)
 896COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
 897/* PPPOX */
 898COMPATIBLE_IOCTL(PPPOEIOCSFWD)
 899COMPATIBLE_IOCTL(PPPOEIOCDFWD)
 900/* Big A */
 901/* sparc only */
 902/* Big Q for sound/OSS */
 903COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
 904COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
 905COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
 906COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
 907COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
 908COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
 909COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
 910COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
 911COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
 912COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
 913COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
 914COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
 915COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
 916COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
 917COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
 918COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
 919COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
 920COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
 921COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
 922COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
 923COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
 924COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
 925/* Big T for sound/OSS */
 926COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
 927COMPATIBLE_IOCTL(SNDCTL_TMR_START)
 928COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
 929COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
 930COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
 931COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
 932COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
 933COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
 934/* Little m for sound/OSS */
 935COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
 936COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
 937COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
 938/* Big P for sound/OSS */
 939COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
 940COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
 941COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
 942COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
 943COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
 944COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
 945COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
 946COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
 947COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
 948COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
 949COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
 950COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
 951COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
 952COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
 953COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
 954COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
 955COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
 956COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
 957COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
 958COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
 959/* SNDCTL_DSP_MAPINBUF,  XXX needs translation */
 960/* SNDCTL_DSP_MAPOUTBUF,  XXX needs translation */
 961COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
 962COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
 963COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
 964COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
 965COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
 966COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
 967COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
 968COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
 969/* Big C for sound/OSS */
 970COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
 971COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
 972COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
 973COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
 974COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
 975COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
 976COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
 977COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
 978COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
 979COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
 980/* Big M for sound/OSS */
 981COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
 982COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
 983COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
 984COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
 985COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
 986COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
 987COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
 988COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
 989COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
 990COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
 991COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
 992COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
 993COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
 994COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
 995COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
 996COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
 997COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
 998COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
 999COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
1000COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
1001COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
1002COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
1003COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
1004COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
1005COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
1006COMPATIBLE_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 */
1009COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
1010COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
1011COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
1012COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
1013COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
1014COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
1015COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
1016COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
1017COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
1018COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
1019COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
1020COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
1021COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
1022COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
1023COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
1024COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
1025COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
1026COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
1027COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
1028COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
1029COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
1030COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
1031COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
1032COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
1033COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
1034COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
1035COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
1036COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
1037COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
1038COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
1039COMPATIBLE_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 */
1042COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
1043COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
1044COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
1045COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
1046COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
1047COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
1048COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
1049COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
1050COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
1051COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
1052COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
1053COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
1054COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
1055COMPATIBLE_IOCTL(OSS_GETVERSION)
1056/* Raw devices */
1057COMPATIBLE_IOCTL(RAW_SETBIND)
1058COMPATIBLE_IOCTL(RAW_GETBIND)
1059/* Watchdog */
1060COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
1061COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
1062COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
1063COMPATIBLE_IOCTL(WDIOC_GETTEMP)
1064COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
1065COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
1066COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
1067COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
1068COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
1069COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)
1070/* Big R */
1071COMPATIBLE_IOCTL(RNDGETENTCNT)
1072COMPATIBLE_IOCTL(RNDADDTOENTCNT)
1073COMPATIBLE_IOCTL(RNDGETPOOL)
1074COMPATIBLE_IOCTL(RNDADDENTROPY)
1075COMPATIBLE_IOCTL(RNDZAPENTCNT)
1076COMPATIBLE_IOCTL(RNDCLEARPOOL)
1077/* Bluetooth */
1078COMPATIBLE_IOCTL(HCIDEVUP)
1079COMPATIBLE_IOCTL(HCIDEVDOWN)
1080COMPATIBLE_IOCTL(HCIDEVRESET)
1081COMPATIBLE_IOCTL(HCIDEVRESTAT)
1082COMPATIBLE_IOCTL(HCIGETDEVLIST)
1083COMPATIBLE_IOCTL(HCIGETDEVINFO)
1084COMPATIBLE_IOCTL(HCIGETCONNLIST)
1085COMPATIBLE_IOCTL(HCIGETCONNINFO)
1086COMPATIBLE_IOCTL(HCIGETAUTHINFO)
1087COMPATIBLE_IOCTL(HCISETRAW)
1088COMPATIBLE_IOCTL(HCISETSCAN)
1089COMPATIBLE_IOCTL(HCISETAUTH)
1090COMPATIBLE_IOCTL(HCISETENCRYPT)
1091COMPATIBLE_IOCTL(HCISETPTYPE)
1092COMPATIBLE_IOCTL(HCISETLINKPOL)
1093COMPATIBLE_IOCTL(HCISETLINKMODE)
1094COMPATIBLE_IOCTL(HCISETACLMTU)
1095COMPATIBLE_IOCTL(HCISETSCOMTU)
1096COMPATIBLE_IOCTL(HCIBLOCKADDR)
1097COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
1098COMPATIBLE_IOCTL(HCIINQUIRY)
1099COMPATIBLE_IOCTL(HCIUARTSETPROTO)
1100COMPATIBLE_IOCTL(HCIUARTGETPROTO)
1101COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
1102COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
1103COMPATIBLE_IOCTL(HCIUARTGETFLAGS)
1104COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
1105COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
1106COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
1107COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
1108COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
1109COMPATIBLE_IOCTL(BNEPCONNADD)
1110COMPATIBLE_IOCTL(BNEPCONNDEL)
1111COMPATIBLE_IOCTL(BNEPGETCONNLIST)
1112COMPATIBLE_IOCTL(BNEPGETCONNINFO)
1113COMPATIBLE_IOCTL(BNEPGETSUPPFEAT)
1114COMPATIBLE_IOCTL(CMTPCONNADD)
1115COMPATIBLE_IOCTL(CMTPCONNDEL)
1116COMPATIBLE_IOCTL(CMTPGETCONNLIST)
1117COMPATIBLE_IOCTL(CMTPGETCONNINFO)
1118COMPATIBLE_IOCTL(HIDPCONNADD)
1119COMPATIBLE_IOCTL(HIDPCONNDEL)
1120COMPATIBLE_IOCTL(HIDPGETCONNLIST)
1121COMPATIBLE_IOCTL(HIDPGETCONNINFO)
1122/* CAPI */
1123COMPATIBLE_IOCTL(CAPI_REGISTER)
1124COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
1125COMPATIBLE_IOCTL(CAPI_GET_VERSION)
1126COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
1127COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
1128COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
1129COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
1130COMPATIBLE_IOCTL(CAPI_INSTALLED)
1131COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
1132COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
1133COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
1134COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
1135COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)
1136/* Siemens Gigaset */
1137COMPATIBLE_IOCTL(GIGASET_REDIR)
1138COMPATIBLE_IOCTL(GIGASET_CONFIG)
1139COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
1140COMPATIBLE_IOCTL(GIGASET_VERSION)
1141/* Misc. */
1142COMPATIBLE_IOCTL(0x41545900)            /* ATYIO_CLKR */
1143COMPATIBLE_IOCTL(0x41545901)            /* ATYIO_CLKW */
1144COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
1145COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
1146COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
1147COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
1148/* hiddev */
1149COMPATIBLE_IOCTL(HIDIOCGVERSION)
1150COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
1151COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
1152COMPATIBLE_IOCTL(HIDIOCGSTRING)
1153COMPATIBLE_IOCTL(HIDIOCINITREPORT)
1154COMPATIBLE_IOCTL(HIDIOCGREPORT)
1155COMPATIBLE_IOCTL(HIDIOCSREPORT)
1156COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
1157COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
1158COMPATIBLE_IOCTL(HIDIOCGUSAGE)
1159COMPATIBLE_IOCTL(HIDIOCSUSAGE)
1160COMPATIBLE_IOCTL(HIDIOCGUCODE)
1161COMPATIBLE_IOCTL(HIDIOCGFLAG)
1162COMPATIBLE_IOCTL(HIDIOCSFLAG)
1163COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
1164COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
1165/* dvb */
1166COMPATIBLE_IOCTL(AUDIO_STOP)
1167COMPATIBLE_IOCTL(AUDIO_PLAY)
1168COMPATIBLE_IOCTL(AUDIO_PAUSE)
1169COMPATIBLE_IOCTL(AUDIO_CONTINUE)
1170COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
1171COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
1172COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
1173COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
1174COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
1175COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
1176COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
1177COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
1178COMPATIBLE_IOCTL(AUDIO_SET_ID)
1179COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
1180COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
1181COMPATIBLE_IOCTL(DMX_START)
1182COMPATIBLE_IOCTL(DMX_STOP)
1183COMPATIBLE_IOCTL(DMX_SET_FILTER)
1184COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
1185COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
1186COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
1187COMPATIBLE_IOCTL(DMX_GET_STC)
1188COMPATIBLE_IOCTL(DMX_REQBUFS)
1189COMPATIBLE_IOCTL(DMX_QUERYBUF)
1190COMPATIBLE_IOCTL(DMX_EXPBUF)
1191COMPATIBLE_IOCTL(DMX_QBUF)
1192COMPATIBLE_IOCTL(DMX_DQBUF)
1193COMPATIBLE_IOCTL(VIDEO_STOP)
1194COMPATIBLE_IOCTL(VIDEO_PLAY)
1195COMPATIBLE_IOCTL(VIDEO_FREEZE)
1196COMPATIBLE_IOCTL(VIDEO_CONTINUE)
1197COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
1198COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
1199COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
1200COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
1201COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
1202COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
1203COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
1204COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
1205COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
1206COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
1207COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
1208/* cec */
1209COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS)
1210COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS)
1211COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS)
1212COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR)
1213COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR)
1214COMPATIBLE_IOCTL(CEC_G_MODE)
1215COMPATIBLE_IOCTL(CEC_S_MODE)
1216COMPATIBLE_IOCTL(CEC_TRANSMIT)
1217COMPATIBLE_IOCTL(CEC_RECEIVE)
1218COMPATIBLE_IOCTL(CEC_DQEVENT)
1219
1220/* joystick */
1221COMPATIBLE_IOCTL(JSIOCGVERSION)
1222COMPATIBLE_IOCTL(JSIOCGAXES)
1223COMPATIBLE_IOCTL(JSIOCGBUTTONS)
1224COMPATIBLE_IOCTL(JSIOCGNAME(0))
1225
1226#ifdef TIOCGLTC
1227COMPATIBLE_IOCTL(TIOCGLTC)
1228COMPATIBLE_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 */
1237COMPATIBLE_IOCTL(TIOCSTART)
1238COMPATIBLE_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
1247IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
1248IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
1249
1250#ifdef CONFIG_SPARC
1251/* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
1252IGNORE_IOCTL(FBIOGTYPE)
1253IGNORE_IOCTL(FBIOSATTR)
1254IGNORE_IOCTL(FBIOGATTR)
1255IGNORE_IOCTL(FBIOSVIDEO)
1256IGNORE_IOCTL(FBIOGVIDEO)
1257IGNORE_IOCTL(FBIOSCURPOS)
1258IGNORE_IOCTL(FBIOGCURPOS)
1259IGNORE_IOCTL(FBIOGCURMAX)
1260IGNORE_IOCTL(FBIOPUTCMAP32)
1261IGNORE_IOCTL(FBIOGETCMAP32)
1262IGNORE_IOCTL(FBIOSCURSOR32)
1263IGNORE_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 */
1274static 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
1343static 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
1365COMPAT_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
1448static 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
1460static 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);
1467