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/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
 127static 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
 138struct 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
 147static 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
 172struct compat_video_still_picture {
 173        compat_uptr_t iFrame;
 174        int32_t size;
 175};
 176
 177static 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
 203struct compat_video_spu_palette {
 204        int length;
 205        compat_uptr_t palette;
 206};
 207
 208static 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
 232typedef 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
 258typedef struct sg_iovec32 {
 259        compat_uint_t iov_base;
 260        compat_uint_t iov_len;
 261} sg_iovec32_t;
 262
 263static 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
 284static 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
 377struct 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
 388static 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
 412struct 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
 420static 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
 446struct 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
 453struct 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
 459static 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
 480static 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
 504struct 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
 515struct mtpos32 {
 516        compat_long_t   mt_blkno;
 517};
 518#define MTIOCPOS32      _IOR('m', 3, struct mtpos32)
 519
 520static 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
 594struct 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
 616static 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
 661static 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)
 689struct 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 */
 704static 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
 738static unsigned int ioctl_pointer[] = {
 739/* compatible ioctls first */
 740COMPATIBLE_IOCTL(0x4B50)   /* KDGHWCLK - not in the kernel, but don't complain */
 741COMPATIBLE_IOCTL(0x4B51)   /* KDSHWCLK - not in the kernel, but don't complain */
 742
 743/* Big T */
 744COMPATIBLE_IOCTL(TCGETA)
 745COMPATIBLE_IOCTL(TCSETA)
 746COMPATIBLE_IOCTL(TCSETAW)
 747COMPATIBLE_IOCTL(TCSETAF)
 748COMPATIBLE_IOCTL(TCSBRK)
 749COMPATIBLE_IOCTL(TCXONC)
 750COMPATIBLE_IOCTL(TCFLSH)
 751COMPATIBLE_IOCTL(TCGETS)
 752COMPATIBLE_IOCTL(TCSETS)
 753COMPATIBLE_IOCTL(TCSETSW)
 754COMPATIBLE_IOCTL(TCSETSF)
 755COMPATIBLE_IOCTL(TIOCLINUX)
 756COMPATIBLE_IOCTL(TIOCSBRK)
 757COMPATIBLE_IOCTL(TIOCGDEV)
 758COMPATIBLE_IOCTL(TIOCCBRK)
 759COMPATIBLE_IOCTL(TIOCGSID)
 760COMPATIBLE_IOCTL(TIOCGICOUNT)
 761COMPATIBLE_IOCTL(TIOCGEXCL)
 762/* Little t */
 763COMPATIBLE_IOCTL(TIOCGETD)
 764COMPATIBLE_IOCTL(TIOCSETD)
 765COMPATIBLE_IOCTL(TIOCEXCL)
 766COMPATIBLE_IOCTL(TIOCNXCL)
 767COMPATIBLE_IOCTL(TIOCCONS)
 768COMPATIBLE_IOCTL(TIOCGSOFTCAR)
 769COMPATIBLE_IOCTL(TIOCSSOFTCAR)
 770COMPATIBLE_IOCTL(TIOCSWINSZ)
 771COMPATIBLE_IOCTL(TIOCGWINSZ)
 772COMPATIBLE_IOCTL(TIOCMGET)
 773COMPATIBLE_IOCTL(TIOCMBIC)
 774COMPATIBLE_IOCTL(TIOCMBIS)
 775COMPATIBLE_IOCTL(TIOCMSET)
 776COMPATIBLE_IOCTL(TIOCNOTTY)
 777COMPATIBLE_IOCTL(TIOCSTI)
 778COMPATIBLE_IOCTL(TIOCOUTQ)
 779COMPATIBLE_IOCTL(TIOCSPGRP)
 780COMPATIBLE_IOCTL(TIOCGPGRP)
 781COMPATIBLE_IOCTL(TIOCSERGETLSR)
 782#ifdef TIOCSRS485
 783COMPATIBLE_IOCTL(TIOCSRS485)
 784#endif
 785#ifdef TIOCGRS485
 786COMPATIBLE_IOCTL(TIOCGRS485)
 787#endif
 788#ifdef TCGETS2
 789COMPATIBLE_IOCTL(TCGETS2)
 790COMPATIBLE_IOCTL(TCSETS2)
 791COMPATIBLE_IOCTL(TCSETSW2)
 792COMPATIBLE_IOCTL(TCSETSF2)
 793#endif
 794/* Little f */
 795COMPATIBLE_IOCTL(FIOCLEX)
 796COMPATIBLE_IOCTL(FIONCLEX)
 797COMPATIBLE_IOCTL(FIOASYNC)
 798COMPATIBLE_IOCTL(FIONBIO)
 799COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
 800COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
 801/* 0x00 */
 802COMPATIBLE_IOCTL(FIBMAP)
 803COMPATIBLE_IOCTL(FIGETBSZ)
 804/* 'X' - originally XFS but some now in the VFS */
 805COMPATIBLE_IOCTL(FIFREEZE)
 806COMPATIBLE_IOCTL(FITHAW)
 807COMPATIBLE_IOCTL(FITRIM)
 808COMPATIBLE_IOCTL(KDGETKEYCODE)
 809COMPATIBLE_IOCTL(KDSETKEYCODE)
 810COMPATIBLE_IOCTL(KDGKBTYPE)
 811COMPATIBLE_IOCTL(KDGETMODE)
 812COMPATIBLE_IOCTL(KDGKBMODE)
 813COMPATIBLE_IOCTL(KDGKBMETA)
 814COMPATIBLE_IOCTL(KDGKBENT)
 815COMPATIBLE_IOCTL(KDSKBENT)
 816COMPATIBLE_IOCTL(KDGKBSENT)
 817COMPATIBLE_IOCTL(KDSKBSENT)
 818COMPATIBLE_IOCTL(KDGKBDIACR)
 819COMPATIBLE_IOCTL(KDSKBDIACR)
 820COMPATIBLE_IOCTL(KDGKBDIACRUC)
 821COMPATIBLE_IOCTL(KDSKBDIACRUC)
 822COMPATIBLE_IOCTL(KDKBDREP)
 823COMPATIBLE_IOCTL(KDGKBLED)
 824COMPATIBLE_IOCTL(KDGETLED)
 825#ifdef CONFIG_BLOCK
 826/* Big S */
 827COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
 828COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
 829COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
 830COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
 831COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
 832COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
 833COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
 834COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
 835#endif
 836/* Big V (don't complain on serial console) */
 837IGNORE_IOCTL(VT_OPENQRY)
 838IGNORE_IOCTL(VT_GETMODE)
 839/* Little p (/dev/rtc, /dev/envctrl, etc.) */
 840COMPATIBLE_IOCTL(RTC_AIE_ON)
 841COMPATIBLE_IOCTL(RTC_AIE_OFF)
 842COMPATIBLE_IOCTL(RTC_UIE_ON)
 843COMPATIBLE_IOCTL(RTC_UIE_OFF)
 844COMPATIBLE_IOCTL(RTC_PIE_ON)
 845COMPATIBLE_IOCTL(RTC_PIE_OFF)
 846COMPATIBLE_IOCTL(RTC_WIE_ON)
 847COMPATIBLE_IOCTL(RTC_WIE_OFF)
 848COMPATIBLE_IOCTL(RTC_ALM_SET)
 849COMPATIBLE_IOCTL(RTC_ALM_READ)
 850COMPATIBLE_IOCTL(RTC_RD_TIME)
 851COMPATIBLE_IOCTL(RTC_SET_TIME)
 852COMPATIBLE_IOCTL(RTC_WKALM_SET)
 853COMPATIBLE_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 */
 860COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
 861COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
 862/* Little m */
 863COMPATIBLE_IOCTL(MTIOCTOP)
 864/* Socket level stuff */
 865COMPATIBLE_IOCTL(FIOQSIZE)
 866#ifdef CONFIG_BLOCK
 867/* md calls this on random blockdevs */
 868IGNORE_IOCTL(RAID_VERSION)
 869/* qemu/qemu-img might call these two on plain files for probing */
 870IGNORE_IOCTL(CDROM_DRIVE_STATUS)
 871IGNORE_IOCTL(FDGETPRM32)
 872/* SG stuff */
 873COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
 874COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
 875COMPATIBLE_IOCTL(SG_EMULATED_HOST)
 876COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
 877COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
 878COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
 879COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
 880COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
 881COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
 882COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
 883COMPATIBLE_IOCTL(SG_GET_PACK_ID)
 884COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
 885COMPATIBLE_IOCTL(SG_SET_DEBUG)
 886COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
 887COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
 888COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
 889COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
 890COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
 891COMPATIBLE_IOCTL(SG_SCSI_RESET)
 892COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
 893COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
 894COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)
 895#endif
 896/* PPP stuff */
 897COMPATIBLE_IOCTL(PPPIOCGFLAGS)
 898COMPATIBLE_IOCTL(PPPIOCSFLAGS)
 899COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
 900COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
 901COMPATIBLE_IOCTL(PPPIOCGUNIT)
 902COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
 903COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
 904COMPATIBLE_IOCTL(PPPIOCGMRU)
 905COMPATIBLE_IOCTL(PPPIOCSMRU)
 906COMPATIBLE_IOCTL(PPPIOCSMAXCID)
 907COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
 908COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
 909COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
 910/* PPPIOCSCOMPRESS is translated */
 911COMPATIBLE_IOCTL(PPPIOCGNPMODE)
 912COMPATIBLE_IOCTL(PPPIOCSNPMODE)
 913COMPATIBLE_IOCTL(PPPIOCGDEBUG)
 914COMPATIBLE_IOCTL(PPPIOCSDEBUG)
 915/* PPPIOCSPASS is translated */
 916/* PPPIOCSACTIVE is translated */
 917/* PPPIOCGIDLE is translated */
 918COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
 919COMPATIBLE_IOCTL(PPPIOCATTACH)
 920COMPATIBLE_IOCTL(PPPIOCDETACH)
 921COMPATIBLE_IOCTL(PPPIOCSMRRU)
 922COMPATIBLE_IOCTL(PPPIOCCONNECT)
 923COMPATIBLE_IOCTL(PPPIOCDISCONN)
 924COMPATIBLE_IOCTL(PPPIOCATTCHAN)
 925COMPATIBLE_IOCTL(PPPIOCGCHAN)
 926COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
 927/* PPPOX */
 928COMPATIBLE_IOCTL(PPPOEIOCSFWD)
 929COMPATIBLE_IOCTL(PPPOEIOCDFWD)
 930/* Big A */
 931/* sparc only */
 932/* Big Q for sound/OSS */
 933COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
 934COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
 935COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
 936COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
 937COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
 938COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
 939COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
 940COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
 941COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
 942COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
 943COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
 944COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
 945COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
 946COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
 947COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
 948COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
 949COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
 950COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
 951COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
 952COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
 953COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
 954COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
 955/* Big T for sound/OSS */
 956COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
 957COMPATIBLE_IOCTL(SNDCTL_TMR_START)
 958COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
 959COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
 960COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
 961COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
 962COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
 963COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
 964/* Little m for sound/OSS */
 965COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
 966COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
 967COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
 968/* Big P for sound/OSS */
 969COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
 970COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
 971COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
 972COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
 973COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
 974COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
 975COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
 976COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
 977COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
 978COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
 979COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
 980COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
 981COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
 982COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
 983COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
 984COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
 985COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
 986COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
 987COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
 988COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
 989/* SNDCTL_DSP_MAPINBUF,  XXX needs translation */
 990/* SNDCTL_DSP_MAPOUTBUF,  XXX needs translation */
 991COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
 992COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
 993COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
 994COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
 995COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
 996COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
 997COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
 998COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
 999/* Big C for sound/OSS */
1000COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
1001COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
1002COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
1003COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
1004COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
1005COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
1006COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
1007COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
1008COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
1009COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
1010/* Big M for sound/OSS */
1011COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
1012COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
1013COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
1014COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
1015COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
1016COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
1017COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
1018COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
1019COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
1020COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
1021COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
1022COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
1023COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
1024COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
1025COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
1026COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
1027COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
1028COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
1029COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
1030COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
1031COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
1032COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
1033COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
1034COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
1035COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
1036COMPATIBLE_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 */
1039COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
1040COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
1041COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
1042COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
1043COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
1044COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
1045COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
1046COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
1047COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
1048COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
1049COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
1050COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
1051COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
1052COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
1053COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
1054COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
1055COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
1056COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
1057COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
1058COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
1059COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
1060COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
1061COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
1062COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
1063COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
1064COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
1065COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
1066COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
1067COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
1068COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
1069COMPATIBLE_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 */
1072COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
1073COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
1074COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
1075COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
1076COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
1077COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
1078COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
1079COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
1080COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
1081COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
1082COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
1083COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
1084COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
1085COMPATIBLE_IOCTL(OSS_GETVERSION)
1086/* Raw devices */
1087COMPATIBLE_IOCTL(RAW_SETBIND)
1088COMPATIBLE_IOCTL(RAW_GETBIND)
1089/* Watchdog */
1090COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
1091COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
1092COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
1093COMPATIBLE_IOCTL(WDIOC_GETTEMP)
1094COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
1095COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
1096COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
1097COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
1098COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
1099COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)
1100/* Big R */
1101COMPATIBLE_IOCTL(RNDGETENTCNT)
1102COMPATIBLE_IOCTL(RNDADDTOENTCNT)
1103COMPATIBLE_IOCTL(RNDGETPOOL)
1104COMPATIBLE_IOCTL(RNDADDENTROPY)
1105COMPATIBLE_IOCTL(RNDZAPENTCNT)
1106COMPATIBLE_IOCTL(RNDCLEARPOOL)
1107/* Bluetooth */
1108COMPATIBLE_IOCTL(HCIDEVUP)
1109COMPATIBLE_IOCTL(HCIDEVDOWN)
1110COMPATIBLE_IOCTL(HCIDEVRESET)
1111COMPATIBLE_IOCTL(HCIDEVRESTAT)
1112COMPATIBLE_IOCTL(HCIGETDEVLIST)
1113COMPATIBLE_IOCTL(HCIGETDEVINFO)
1114COMPATIBLE_IOCTL(HCIGETCONNLIST)
1115COMPATIBLE_IOCTL(HCIGETCONNINFO)
1116COMPATIBLE_IOCTL(HCIGETAUTHINFO)
1117COMPATIBLE_IOCTL(HCISETRAW)
1118COMPATIBLE_IOCTL(HCISETSCAN)
1119COMPATIBLE_IOCTL(HCISETAUTH)
1120COMPATIBLE_IOCTL(HCISETENCRYPT)
1121COMPATIBLE_IOCTL(HCISETPTYPE)
1122COMPATIBLE_IOCTL(HCISETLINKPOL)
1123COMPATIBLE_IOCTL(HCISETLINKMODE)
1124COMPATIBLE_IOCTL(HCISETACLMTU)
1125COMPATIBLE_IOCTL(HCISETSCOMTU)
1126COMPATIBLE_IOCTL(HCIBLOCKADDR)
1127COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
1128COMPATIBLE_IOCTL(HCIINQUIRY)
1129COMPATIBLE_IOCTL(HCIUARTSETPROTO)
1130COMPATIBLE_IOCTL(HCIUARTGETPROTO)
1131COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
1132COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
1133COMPATIBLE_IOCTL(HCIUARTGETFLAGS)
1134COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
1135COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
1136COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
1137COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
1138COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
1139COMPATIBLE_IOCTL(BNEPCONNADD)
1140COMPATIBLE_IOCTL(BNEPCONNDEL)
1141COMPATIBLE_IOCTL(BNEPGETCONNLIST)
1142COMPATIBLE_IOCTL(BNEPGETCONNINFO)
1143COMPATIBLE_IOCTL(BNEPGETSUPPFEAT)
1144COMPATIBLE_IOCTL(CMTPCONNADD)
1145COMPATIBLE_IOCTL(CMTPCONNDEL)
1146COMPATIBLE_IOCTL(CMTPGETCONNLIST)
1147COMPATIBLE_IOCTL(CMTPGETCONNINFO)
1148COMPATIBLE_IOCTL(HIDPCONNADD)
1149COMPATIBLE_IOCTL(HIDPCONNDEL)
1150COMPATIBLE_IOCTL(HIDPGETCONNLIST)
1151COMPATIBLE_IOCTL(HIDPGETCONNINFO)
1152/* CAPI */
1153COMPATIBLE_IOCTL(CAPI_REGISTER)
1154COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
1155COMPATIBLE_IOCTL(CAPI_GET_VERSION)
1156COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
1157COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
1158COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
1159COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
1160COMPATIBLE_IOCTL(CAPI_INSTALLED)
1161COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
1162COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
1163COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
1164COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
1165COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)
1166/* Siemens Gigaset */
1167COMPATIBLE_IOCTL(GIGASET_REDIR)
1168COMPATIBLE_IOCTL(GIGASET_CONFIG)
1169COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
1170COMPATIBLE_IOCTL(GIGASET_VERSION)
1171/* Misc. */
1172COMPATIBLE_IOCTL(0x41545900)            /* ATYIO_CLKR */
1173COMPATIBLE_IOCTL(0x41545901)            /* ATYIO_CLKW */
1174COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
1175COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
1176COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
1177COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
1178/* hiddev */
1179COMPATIBLE_IOCTL(HIDIOCGVERSION)
1180COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
1181COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
1182COMPATIBLE_IOCTL(HIDIOCGSTRING)
1183COMPATIBLE_IOCTL(HIDIOCINITREPORT)
1184COMPATIBLE_IOCTL(HIDIOCGREPORT)
1185COMPATIBLE_IOCTL(HIDIOCSREPORT)
1186COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
1187COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
1188COMPATIBLE_IOCTL(HIDIOCGUSAGE)
1189COMPATIBLE_IOCTL(HIDIOCSUSAGE)
1190COMPATIBLE_IOCTL(HIDIOCGUCODE)
1191COMPATIBLE_IOCTL(HIDIOCGFLAG)
1192COMPATIBLE_IOCTL(HIDIOCSFLAG)
1193COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
1194COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
1195/* dvb */
1196COMPATIBLE_IOCTL(AUDIO_STOP)
1197COMPATIBLE_IOCTL(AUDIO_PLAY)
1198COMPATIBLE_IOCTL(AUDIO_PAUSE)
1199COMPATIBLE_IOCTL(AUDIO_CONTINUE)
1200COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
1201COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
1202COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
1203COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
1204COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
1205COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
1206COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
1207COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
1208COMPATIBLE_IOCTL(AUDIO_SET_ID)
1209COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
1210COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
1211COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID)
1212COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES)
1213COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE)
1214COMPATIBLE_IOCTL(DMX_START)
1215COMPATIBLE_IOCTL(DMX_STOP)
1216COMPATIBLE_IOCTL(DMX_SET_FILTER)
1217COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
1218COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
1219COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
1220COMPATIBLE_IOCTL(DMX_GET_STC)
1221COMPATIBLE_IOCTL(FE_GET_INFO)
1222COMPATIBLE_IOCTL(FE_DISEQC_RESET_OVERLOAD)
1223COMPATIBLE_IOCTL(FE_DISEQC_SEND_MASTER_CMD)
1224COMPATIBLE_IOCTL(FE_DISEQC_RECV_SLAVE_REPLY)
1225COMPATIBLE_IOCTL(FE_DISEQC_SEND_BURST)
1226COMPATIBLE_IOCTL(FE_SET_TONE)
1227COMPATIBLE_IOCTL(FE_SET_VOLTAGE)
1228COMPATIBLE_IOCTL(FE_ENABLE_HIGH_LNB_VOLTAGE)
1229COMPATIBLE_IOCTL(FE_READ_STATUS)
1230COMPATIBLE_IOCTL(FE_READ_BER)
1231COMPATIBLE_IOCTL(FE_READ_SIGNAL_STRENGTH)
1232COMPATIBLE_IOCTL(FE_READ_SNR)
1233COMPATIBLE_IOCTL(FE_READ_UNCORRECTED_BLOCKS)
1234COMPATIBLE_IOCTL(FE_SET_FRONTEND)
1235COMPATIBLE_IOCTL(FE_GET_FRONTEND)
1236COMPATIBLE_IOCTL(FE_GET_EVENT)
1237COMPATIBLE_IOCTL(FE_DISHNETWORK_SEND_LEGACY_CMD)
1238COMPATIBLE_IOCTL(VIDEO_STOP)
1239COMPATIBLE_IOCTL(VIDEO_PLAY)
1240COMPATIBLE_IOCTL(VIDEO_FREEZE)
1241COMPATIBLE_IOCTL(VIDEO_CONTINUE)
1242COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
1243COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
1244COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
1245COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
1246COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
1247COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
1248COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
1249COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
1250COMPATIBLE_IOCTL(VIDEO_SET_ID)
1251COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
1252COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
1253COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM)
1254COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT)
1255COMPATIBLE_IOCTL(VIDEO_SET_SPU)
1256COMPATIBLE_IOCTL(VIDEO_GET_NAVI)
1257COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES)
1258COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
1259COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE)
1260/* cec */
1261COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS)
1262COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS)
1263COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS)
1264COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR)
1265COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR)
1266COMPATIBLE_IOCTL(CEC_G_MODE)
1267COMPATIBLE_IOCTL(CEC_S_MODE)
1268COMPATIBLE_IOCTL(CEC_TRANSMIT)
1269COMPATIBLE_IOCTL(CEC_RECEIVE)
1270COMPATIBLE_IOCTL(CEC_DQEVENT)
1271
1272/* joystick */
1273COMPATIBLE_IOCTL(JSIOCGVERSION)
1274COMPATIBLE_IOCTL(JSIOCGAXES)
1275COMPATIBLE_IOCTL(JSIOCGBUTTONS)
1276COMPATIBLE_IOCTL(JSIOCGNAME(0))
1277
1278#ifdef TIOCGLTC
1279COMPATIBLE_IOCTL(TIOCGLTC)
1280COMPATIBLE_IOCTL(TIOCSLTC)
1281#endif
1282#ifdef TIOCSTART
1283/*
1284 * For these two we have definitions in ioctls.h and/or termios.h on
1285 * some architectures but no actual implemention.  Some applications
1286 * like bash call them if they are defined in the headers, so we provide
1287 * entries here to avoid syslog message spew.
1288 */
1289COMPATIBLE_IOCTL(TIOCSTART)
1290COMPATIBLE_IOCTL(TIOCSTOP)
1291#endif
1292
1293/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
1294   but we don't want warnings on other file systems. So declare
1295   them as compatible here. */
1296#define VFAT_IOCTL_READDIR_BOTH32       _IOR('r', 1, struct compat_dirent[2])
1297#define VFAT_IOCTL_READDIR_SHORT32      _IOR('r', 2, struct compat_dirent[2])
1298
1299IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
1300IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
1301
1302#ifdef CONFIG_SPARC
1303/* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
1304IGNORE_IOCTL(FBIOGTYPE)
1305IGNORE_IOCTL(FBIOSATTR)
1306IGNORE_IOCTL(FBIOGATTR)
1307IGNORE_IOCTL(FBIOSVIDEO)
1308IGNORE_IOCTL(FBIOGVIDEO)
1309IGNORE_IOCTL(FBIOSCURPOS)
1310IGNORE_IOCTL(FBIOGCURPOS)
1311IGNORE_IOCTL(FBIOGCURMAX)
1312IGNORE_IOCTL(FBIOPUTCMAP32)
1313IGNORE_IOCTL(FBIOGETCMAP32)
1314IGNORE_IOCTL(FBIOSCURSOR32)
1315IGNORE_IOCTL(FBIOGCURSOR32)
1316#endif
1317};
1318
1319/*
1320 * Convert common ioctl arguments based on their command number
1321 *
1322 * Please do not add any code in here. Instead, implement
1323 * a compat_ioctl operation in the place that handleѕ the
1324 * ioctl for the native case.
1325 */
1326static long do_ioctl_trans(unsigned int cmd,
1327                 unsigned long arg, struct file *file)
1328{
1329        void __user *argp = compat_ptr(arg);
1330
1331        switch (cmd) {
1332        case PPPIOCGIDLE32:
1333                return ppp_gidle(file, cmd, argp);
1334        case PPPIOCSCOMPRESS32:
1335                return ppp_scompress(file, cmd, argp);
1336        case PPPIOCSPASS32:
1337        case PPPIOCSACTIVE32:
1338                return ppp_sock_fprog_ioctl_trans(file, cmd, argp);
1339#ifdef CONFIG_BLOCK
1340        case SG_IO:
1341                return sg_ioctl_trans(file, cmd, argp);
1342        case SG_GET_REQUEST_TABLE:
1343                return sg_grt_trans(file, cmd, argp);
1344        case MTIOCGET32:
1345        case MTIOCPOS32:
1346                return mt_ioctl_trans(file, cmd, argp);
1347#endif
1348        /* Serial */
1349        case TIOCGSERIAL:
1350        case TIOCSSERIAL:
1351                return serial_struct_ioctl(file, cmd, argp);
1352        /* Not implemented in the native kernel */
1353        case RTC_IRQP_READ32:
1354        case RTC_IRQP_SET32:
1355        case RTC_EPOCH_READ32:
1356        case RTC_EPOCH_SET32:
1357                return rtc_ioctl(file, cmd, argp);
1358
1359        /* dvb */
1360        case VIDEO_GET_EVENT:
1361                return do_video_get_event(file, cmd, argp);
1362        case VIDEO_STILLPICTURE:
1363                return do_video_stillpicture(file, cmd, argp);
1364        case VIDEO_SET_SPU_PALETTE:
1365                return do_video_set_spu_palette(file, cmd, argp);
1366        }
1367
1368        /*
1369         * These take an integer instead of a pointer as 'arg',
1370         * so we must not do a compat_ptr() translation.
1371         */
1372        switch (cmd) {
1373        /* Big T */
1374        case TCSBRKP:
1375        case TIOCMIWAIT:
1376        case TIOCSCTTY:
1377        /* RAID */
1378        case HOT_REMOVE_DISK:
1379        case HOT_ADD_DISK:
1380        case SET_DISK_FAULTY:
1381        case SET_BITMAP_FILE:
1382        /* Big K */
1383        case KDSIGACCEPT:
1384        case KIOCSOUND:
1385        case KDMKTONE:
1386        case KDSETMODE:
1387        case KDSKBMODE:
1388        case KDSKBMETA:
1389        case KDSKBLED:
1390        case KDSETLED:
1391                return vfs_ioctl(file, cmd, arg);
1392        }
1393
1394        return -ENOIOCTLCMD;
1395}
1396
1397static int compat_ioctl_check_table(unsigned int xcmd)
1398{
1399        int i;
1400        const int max = ARRAY_SIZE(ioctl_pointer) - 1;
1401
1402        BUILD_BUG_ON(max >= (1 << 16));
1403
1404        /* guess initial offset into table, assuming a
1405           normalized distribution */
1406        i = ((xcmd >> 16) * max) >> 16;
1407
1408        /* do linear search up first, until greater or equal */
1409        while (ioctl_pointer[i] < xcmd && i < max)
1410                i++;
1411
1412        /* then do linear search down */
1413        while (ioctl_pointer[i] > xcmd && i > 0)
1414                i--;
1415
1416        return ioctl_pointer[i] == xcmd;
1417}
1418
1419COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
1420                       compat_ulong_t, arg32)
1421{
1422        unsigned long arg = arg32;
1423        struct fd f = fdget(fd);
1424        int error = -EBADF;
1425        if (!f.file)
1426                goto out;
1427
1428        /* RED-PEN how should LSM module know it's handling 32bit? */
1429        error = security_file_ioctl(f.file, cmd, arg);
1430        if (error)
1431                goto out_fput;
1432
1433        /*
1434         * To allow the compat_ioctl handlers to be self contained
1435         * we need to check the common ioctls here first.
1436         * Just handle them with the standard handlers below.
1437         */
1438        switch (cmd) {
1439        case FIOCLEX:
1440        case FIONCLEX:
1441        case FIONBIO:
1442        case FIOASYNC:
1443        case FIOQSIZE:
1444                break;
1445
1446#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
1447        case FS_IOC_RESVSP_32:
1448        case FS_IOC_RESVSP64_32:
1449                error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
1450                goto out_fput;
1451#else
1452        case FS_IOC_RESVSP:
1453        case FS_IOC_RESVSP64:
1454                error = ioctl_preallocate(f.file, compat_ptr(arg));
1455                goto out_fput;
1456#endif
1457
1458        case FICLONE:
1459        case FICLONERANGE:
1460        case FIDEDUPERANGE:
1461        case FS_IOC_FIEMAP:
1462                goto do_ioctl;
1463
1464        case FIBMAP:
1465        case FIGETBSZ:
1466        case FIONREAD:
1467                if (S_ISREG(file_inode(f.file)->i_mode))
1468                        break;
1469                /*FALL THROUGH*/
1470
1471        default:
1472                if (f.file->f_op->compat_ioctl) {
1473                        error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
1474                        if (error != -ENOIOCTLCMD)
1475                                goto out_fput;
1476                }
1477
1478                if (!f.file->f_op->unlocked_ioctl)
1479                        goto do_ioctl;
1480                break;
1481        }
1482
1483        if (compat_ioctl_check_table(XFORM(cmd)))
1484                goto found_handler;
1485
1486        error = do_ioctl_trans(cmd, arg, f.file);
1487        if (error == -ENOIOCTLCMD)
1488                error = -ENOTTY;
1489
1490        goto out_fput;
1491
1492 found_handler:
1493        arg = (unsigned long)compat_ptr(arg);
1494 do_ioctl:
1495        error = do_vfs_ioctl(f.file, fd, cmd, arg);
1496 out_fput:
1497        fdput(f);
1498 out:
1499        return error;
1500}
1501
1502static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
1503{
1504        unsigned int a, b;
1505        a = *(unsigned int *)p;
1506        b = *(unsigned int *)q;
1507        if (a > b)
1508                return 1;
1509        if (a < b)
1510                return -1;
1511        return 0;
1512}
1513
1514static int __init init_sys32_ioctl(void)
1515{
1516        sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
1517                init_sys32_ioctl_cmp, NULL);
1518        return 0;
1519}
1520__initcall(init_sys32_ioctl);
1521