fs/xfs/xfs_ioctl32.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2004-2005 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6 #include <linux/compat.h>
   7 #include <linux/ioctl.h>
   8 #include <linux/mount.h>
   9 #include <linux/slab.h>
  10 #include <linux/uaccess.h>
  11 #include <linux/fsmap.h>
  12 #include "xfs.h"
  13 #include "xfs_fs.h"
  14 #include "xfs_format.h"
  15 #include "xfs_log_format.h"
  16 #include "xfs_trans_resv.h"
  17 #include "xfs_mount.h"
  18 #include "xfs_inode.h"
  19 #include "xfs_itable.h"
  20 #include "xfs_error.h"
  21 #include "xfs_fsops.h"
  22 #include "xfs_alloc.h"
  23 #include "xfs_rtalloc.h"
  24 #include "xfs_attr.h"
  25 #include "xfs_ioctl.h"
  26 #include "xfs_ioctl32.h"
  27 #include "xfs_trace.h"
  28 #include "xfs_sb.h"
  29
  30 #define  _NATIVE_IOC(cmd, type) \
  31           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  32
  33 #ifdef BROKEN_X86_ALIGNMENT
  34 STATIC int
  35 xfs_compat_flock64_copyin(
  36         xfs_flock64_t           *bf,
  37         compat_xfs_flock64_t    __user *arg32)
  38 {
  39         if (get_user(bf->l_type,        &arg32->l_type) ||
  40             get_user(bf->l_whence,      &arg32->l_whence) ||
  41             get_user(bf->l_start,       &arg32->l_start) ||
  42             get_user(bf->l_len,         &arg32->l_len) ||
  43             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  44             get_user(bf->l_pid,         &arg32->l_pid) ||
  45             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  46                 return -EFAULT;
  47         return 0;
  48 }
  49
  50 STATIC int
  51 xfs_compat_ioc_fsgeometry_v1(
  52         struct xfs_mount          *mp,
  53         compat_xfs_fsop_geom_v1_t __user *arg32)
  54 {
  55         xfs_fsop_geom_t           fsgeo;
  56         int                       error;
  57
  58         error = xfs_fs_geometry(&mp->m_sb, &fsgeo, 3);
  59         if (error)
  60                 return error;
  61         /* The 32-bit variant simply has some padding at the end */
  62         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  63                 return -EFAULT;
  64         return 0;
  65 }
  66
  67 STATIC int
  68 xfs_compat_growfs_data_copyin(
  69         struct xfs_growfs_data   *in,
  70         compat_xfs_growfs_data_t __user *arg32)
  71 {
  72         if (get_user(in->newblocks, &arg32->newblocks) ||
  73             get_user(in->imaxpct,   &arg32->imaxpct))
  74                 return -EFAULT;
  75         return 0;
  76 }
  77
  78 STATIC int
  79 xfs_compat_growfs_rt_copyin(
  80         struct xfs_growfs_rt     *in,
  81         compat_xfs_growfs_rt_t  __user *arg32)
  82 {
  83         if (get_user(in->newblocks, &arg32->newblocks) ||
  84             get_user(in->extsize,   &arg32->extsize))
  85                 return -EFAULT;
  86         return 0;
  87 }
  88
  89 STATIC int
  90 xfs_inumbers_fmt_compat(
  91         void                    __user *ubuffer,
  92         const struct xfs_inogrp *buffer,
  93         long                    count,
  94         long                    *written)
  95 {
  96         compat_xfs_inogrp_t     __user *p32 = ubuffer;
  97         long                    i;
  98
  99         for (i = 0; i < count; i++) {
 100                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
 101                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
 102                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 103                         return -EFAULT;
 104         }
 105         *written = count * sizeof(*p32);
 106         return 0;
 107 }
 108
 109 #else
 110 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 111 #endif  /* BROKEN_X86_ALIGNMENT */
 112
 113 STATIC int
 114 xfs_ioctl32_bstime_copyin(
 115         xfs_bstime_t            *bstime,
 116         compat_xfs_bstime_t     __user *bstime32)
 117 {
 118         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 119
 120         if (get_user(sec32,             &bstime32->tv_sec)      ||
 121             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 122                 return -EFAULT;
 123         bstime->tv_sec = sec32;
 124         return 0;
 125 }
 126
 127 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 128 STATIC int
 129 xfs_ioctl32_bstat_copyin(
 130         xfs_bstat_t             *bstat,
 131         compat_xfs_bstat_t      __user *bstat32)
 132 {
 133         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 134             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 135             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 136             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 137             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 138             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 139             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 140             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 141             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 142             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 143             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 144             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 145             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 146             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 147             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 148             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 149             get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
 150             get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
 151             get_user(bstat->bs_forkoff, &bstat32->bs_forkoff)   ||
 152             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 153             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 154             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 155                 return -EFAULT;
 156         return 0;
 157 }
 158
 159 /* XFS_IOC_FSBULKSTAT and friends */
 160
 161 STATIC int
 162 xfs_bstime_store_compat(
 163         compat_xfs_bstime_t     __user *p32,
 164         const xfs_bstime_t      *p)
 165 {
 166         __s32                   sec32;
 167
 168         sec32 = p->tv_sec;
 169         if (put_user(sec32, &p32->tv_sec) ||
 170             put_user(p->tv_nsec, &p32->tv_nsec))
 171                 return -EFAULT;
 172         return 0;
 173 }
 174
 175 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 176 STATIC int
 177 xfs_bulkstat_one_fmt_compat(
 178         void                    __user *ubuffer,
 179         int                     ubsize,
 180         int                     *ubused,
 181         const xfs_bstat_t       *buffer)
 182 {
 183         compat_xfs_bstat_t      __user *p32 = ubuffer;
 184
 185         if (ubsize < sizeof(*p32))
 186                 return -ENOMEM;
 187
 188         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 189             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 190             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 191             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 192             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 193             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 194             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 195             put_user(buffer->bs_size,     &p32->bs_size)        ||
 196             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 197             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 198             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 199             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 200             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 201             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 202             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 203             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 204             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 205             put_user(buffer->bs_projid_hi,      &p32->bs_projid_hi)     ||
 206             put_user(buffer->bs_forkoff,  &p32->bs_forkoff)     ||
 207             put_user(buffer->bs_dmevmask, &p32->bs_dmevmask)    ||
 208             put_user(buffer->bs_dmstate,  &p32->bs_dmstate)     ||
 209             put_user(buffer->bs_aextents, &p32->bs_aextents))
 210                 return -EFAULT;
 211         if (ubused)
 212                 *ubused = sizeof(*p32);
 213         return 0;
 214 }
 215
 216 STATIC int
 217 xfs_bulkstat_one_compat(
 218         xfs_mount_t     *mp,            /* mount point for filesystem */
 219         xfs_ino_t       ino,            /* inode number to get data for */
 220         void            __user *buffer, /* buffer to place output in */
 221         int             ubsize,         /* size of buffer */
 222         int             *ubused,        /* bytes used by me */
 223         int             *stat)          /* BULKSTAT_RV_... */
 224 {
 225         return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 226                                     xfs_bulkstat_one_fmt_compat,
 227                                     ubused, stat);
 228 }
 229
 230 /* copied from xfs_ioctl.c */
 231 STATIC int
 232 xfs_compat_ioc_bulkstat(
 233         xfs_mount_t               *mp,
 234         unsigned int              cmd,
 235         compat_xfs_fsop_bulkreq_t __user *p32)
 236 {
 237         u32                     addr;
 238         xfs_fsop_bulkreq_t      bulkreq;
 239         int                     count;  /* # of records returned */
 240         xfs_ino_t               inlast; /* last inode number */
 241         int                     done;
 242         int                     error;
 243
 244         /* done = 1 if there are more stats to get and if bulkstat */
 245         /* should be called again (unused here, but used in dmapi) */
 246
 247         if (!capable(CAP_SYS_ADMIN))
 248                 return -EPERM;
 249
 250         if (XFS_FORCED_SHUTDOWN(mp))
 251                 return -EIO;
 252
 253         if (get_user(addr, &p32->lastip))
 254                 return -EFAULT;
 255         bulkreq.lastip = compat_ptr(addr);
 256         if (get_user(bulkreq.icount, &p32->icount) ||
 257             get_user(addr, &p32->ubuffer))
 258                 return -EFAULT;
 259         bulkreq.ubuffer = compat_ptr(addr);
 260         if (get_user(addr, &p32->ocount))
 261                 return -EFAULT;
 262         bulkreq.ocount = compat_ptr(addr);
 263
 264         if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
 265                 return -EFAULT;
 266
 267         if ((count = bulkreq.icount) <= 0)
 268                 return -EINVAL;
 269
 270         if (bulkreq.ubuffer == NULL)
 271                 return -EINVAL;
 272
 273         if (cmd == XFS_IOC_FSINUMBERS_32) {
 274                 error = xfs_inumbers(mp, &inlast, &count,
 275                                 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
 276         } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
 277                 int res;
 278
 279                 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
 280                                 sizeof(compat_xfs_bstat_t), NULL, &res);
 281         } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 282                 error = xfs_bulkstat(mp, &inlast, &count,
 283                         xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
 284                         bulkreq.ubuffer, &done);
 285         } else
 286                 error = -EINVAL;
 287         if (error)
 288                 return error;
 289
 290         if (bulkreq.ocount != NULL) {
 291                 if (copy_to_user(bulkreq.lastip, &inlast,
 292                                                 sizeof(xfs_ino_t)))
 293                         return -EFAULT;
 294
 295                 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
 296                         return -EFAULT;
 297         }
 298
 299         return 0;
 300 }
 301
 302 STATIC int
 303 xfs_compat_handlereq_copyin(
 304         xfs_fsop_handlereq_t            *hreq,
 305         compat_xfs_fsop_handlereq_t     __user *arg32)
 306 {
 307         compat_xfs_fsop_handlereq_t     hreq32;
 308
 309         if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
 310                 return -EFAULT;
 311
 312         hreq->fd = hreq32.fd;
 313         hreq->path = compat_ptr(hreq32.path);
 314         hreq->oflags = hreq32.oflags;
 315         hreq->ihandle = compat_ptr(hreq32.ihandle);
 316         hreq->ihandlen = hreq32.ihandlen;
 317         hreq->ohandle = compat_ptr(hreq32.ohandle);
 318         hreq->ohandlen = compat_ptr(hreq32.ohandlen);
 319
 320         return 0;
 321 }
 322
 323 STATIC struct dentry *
 324 xfs_compat_handlereq_to_dentry(
 325         struct file             *parfilp,
 326         compat_xfs_fsop_handlereq_t *hreq)
 327 {
 328         return xfs_handle_to_dentry(parfilp,
 329                         compat_ptr(hreq->ihandle), hreq->ihandlen);
 330 }
 331
 332 STATIC int
 333 xfs_compat_attrlist_by_handle(
 334         struct file             *parfilp,
 335         void                    __user *arg)
 336 {
 337         int                     error;
 338         attrlist_cursor_kern_t  *cursor;
 339         compat_xfs_fsop_attrlist_handlereq_t al_hreq;
 340         struct dentry           *dentry;
 341         char                    *kbuf;
 342
 343         if (!capable(CAP_SYS_ADMIN))
 344                 return -EPERM;
 345         if (copy_from_user(&al_hreq, arg,
 346                            sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
 347                 return -EFAULT;
 348         if (al_hreq.buflen < sizeof(struct attrlist) ||
 349             al_hreq.buflen > XFS_XATTR_LIST_MAX)
 350                 return -EINVAL;
 351
 352         /*
 353          * Reject flags, only allow namespaces.
 354          */
 355         if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
 356                 return -EINVAL;
 357
 358         dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 359         if (IS_ERR(dentry))
 360                 return PTR_ERR(dentry);
 361
 362         error = -ENOMEM;
 363         kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
 364         if (!kbuf)
 365                 goto out_dput;
 366
 367         cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
 368         error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen,
 369                                         al_hreq.flags, cursor);
 370         if (error)
 371                 goto out_kfree;
 372
 373         if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
 374                 error = -EFAULT;
 375
 376 out_kfree:
 377         kmem_free(kbuf);
 378 out_dput:
 379         dput(dentry);
 380         return error;
 381 }
 382
 383 STATIC int
 384 xfs_compat_attrmulti_by_handle(
 385         struct file                             *parfilp,
 386         void                                    __user *arg)
 387 {
 388         int                                     error;
 389         compat_xfs_attr_multiop_t               *ops;
 390         compat_xfs_fsop_attrmulti_handlereq_t   am_hreq;
 391         struct dentry                           *dentry;
 392         unsigned int                            i, size;
 393         unsigned char                           *attr_name;
 394
 395         if (!capable(CAP_SYS_ADMIN))
 396                 return -EPERM;
 397         if (copy_from_user(&am_hreq, arg,
 398                            sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
 399                 return -EFAULT;
 400
 401         /* overflow check */
 402         if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
 403                 return -E2BIG;
 404
 405         dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
 406         if (IS_ERR(dentry))
 407                 return PTR_ERR(dentry);
 408
 409         error = -E2BIG;
 410         size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
 411         if (!size || size > 16 * PAGE_SIZE)
 412                 goto out_dput;
 413
 414         ops = memdup_user(compat_ptr(am_hreq.ops), size);
 415         if (IS_ERR(ops)) {
 416                 error = PTR_ERR(ops);
 417                 goto out_dput;
 418         }
 419
 420         error = -ENOMEM;
 421         attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
 422         if (!attr_name)
 423                 goto out_kfree_ops;
 424
 425         error = 0;
 426         for (i = 0; i < am_hreq.opcount; i++) {
 427                 ops[i].am_error = strncpy_from_user((char *)attr_name,
 428                                 compat_ptr(ops[i].am_attrname),
 429                                 MAXNAMELEN);
 430                 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
 431                         error = -ERANGE;
 432                 if (ops[i].am_error < 0)
 433                         break;
 434
 435                 switch (ops[i].am_opcode) {
 436                 case ATTR_OP_GET:
 437                         ops[i].am_error = xfs_attrmulti_attr_get(
 438                                         d_inode(dentry), attr_name,
 439                                         compat_ptr(ops[i].am_attrvalue),
 440                                         &ops[i].am_length, ops[i].am_flags);
 441                         break;
 442                 case ATTR_OP_SET:
 443                         ops[i].am_error = mnt_want_write_file(parfilp);
 444                         if (ops[i].am_error)
 445                                 break;
 446                         ops[i].am_error = xfs_attrmulti_attr_set(
 447                                         d_inode(dentry), attr_name,
 448                                         compat_ptr(ops[i].am_attrvalue),
 449                                         ops[i].am_length, ops[i].am_flags);
 450                         mnt_drop_write_file(parfilp);
 451                         break;
 452                 case ATTR_OP_REMOVE:
 453                         ops[i].am_error = mnt_want_write_file(parfilp);
 454                         if (ops[i].am_error)
 455                                 break;
 456                         ops[i].am_error = xfs_attrmulti_attr_remove(
 457                                         d_inode(dentry), attr_name,
 458                                         ops[i].am_flags);
 459                         mnt_drop_write_file(parfilp);
 460                         break;
 461                 default:
 462                         ops[i].am_error = -EINVAL;
 463                 }
 464         }
 465
 466         if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 467                 error = -EFAULT;
 468
 469         kfree(attr_name);
 470  out_kfree_ops:
 471         kfree(ops);
 472  out_dput:
 473         dput(dentry);
 474         return error;
 475 }
 476
 477 STATIC int
 478 xfs_compat_fssetdm_by_handle(
 479         struct file             *parfilp,
 480         void                    __user *arg)
 481 {
 482         int                     error;
 483         struct fsdmidata        fsd;
 484         compat_xfs_fsop_setdm_handlereq_t dmhreq;
 485         struct dentry           *dentry;
 486
 487         if (!capable(CAP_MKNOD))
 488                 return -EPERM;
 489         if (copy_from_user(&dmhreq, arg,
 490                            sizeof(compat_xfs_fsop_setdm_handlereq_t)))
 491                 return -EFAULT;
 492
 493         dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
 494         if (IS_ERR(dentry))
 495                 return PTR_ERR(dentry);
 496
 497         if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
 498                 error = -EPERM;
 499                 goto out;
 500         }
 501
 502         if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
 503                 error = -EFAULT;
 504                 goto out;
 505         }
 506
 507         error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
 508                                  fsd.fsd_dmstate);
 509
 510 out:
 511         dput(dentry);
 512         return error;
 513 }
 514
 515 long
 516 xfs_file_compat_ioctl(
 517         struct file             *filp,
 518         unsigned                cmd,
 519         unsigned long           p)
 520 {
 521         struct inode            *inode = file_inode(filp);
 522         struct xfs_inode        *ip = XFS_I(inode);
 523         struct xfs_mount        *mp = ip->i_mount;
 524         void                    __user *arg = (void __user *)p;
 525         int                     error;
 526
 527         trace_xfs_file_compat_ioctl(ip);
 528
 529         switch (cmd) {
 530         /* No size or alignment issues on any arch */
 531         case XFS_IOC_DIOINFO:
 532         case XFS_IOC_FSGEOMETRY:
 533         case XFS_IOC_FSGETXATTR:
 534         case XFS_IOC_FSSETXATTR:
 535         case XFS_IOC_FSGETXATTRA:
 536         case XFS_IOC_FSSETDM:
 537         case XFS_IOC_GETBMAP:
 538         case XFS_IOC_GETBMAPA:
 539         case XFS_IOC_GETBMAPX:
 540         case XFS_IOC_FSCOUNTS:
 541         case XFS_IOC_SET_RESBLKS:
 542         case XFS_IOC_GET_RESBLKS:
 543         case XFS_IOC_FSGROWFSLOG:
 544         case XFS_IOC_GOINGDOWN:
 545         case XFS_IOC_ERROR_INJECTION:
 546         case XFS_IOC_ERROR_CLEARALL:
 547         case FS_IOC_GETFSMAP:
 548         case XFS_IOC_SCRUB_METADATA:
 549                 return xfs_file_ioctl(filp, cmd, p);
 550 #ifndef BROKEN_X86_ALIGNMENT
 551         /* These are handled fine if no alignment issues */
 552         case XFS_IOC_ALLOCSP:
 553         case XFS_IOC_FREESP:
 554         case XFS_IOC_RESVSP:
 555         case XFS_IOC_UNRESVSP:
 556         case XFS_IOC_ALLOCSP64:
 557         case XFS_IOC_FREESP64:
 558         case XFS_IOC_RESVSP64:
 559         case XFS_IOC_UNRESVSP64:
 560         case XFS_IOC_FSGEOMETRY_V1:
 561         case XFS_IOC_FSGROWFSDATA:
 562         case XFS_IOC_FSGROWFSRT:
 563         case XFS_IOC_ZERO_RANGE:
 564                 return xfs_file_ioctl(filp, cmd, p);
 565 #else
 566         case XFS_IOC_ALLOCSP_32:
 567         case XFS_IOC_FREESP_32:
 568         case XFS_IOC_ALLOCSP64_32:
 569         case XFS_IOC_FREESP64_32:
 570         case XFS_IOC_RESVSP_32:
 571         case XFS_IOC_UNRESVSP_32:
 572         case XFS_IOC_RESVSP64_32:
 573         case XFS_IOC_UNRESVSP64_32:
 574         case XFS_IOC_ZERO_RANGE_32: {
 575                 struct xfs_flock64      bf;
 576
 577                 if (xfs_compat_flock64_copyin(&bf, arg))
 578                         return -EFAULT;
 579                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 580                 return xfs_ioc_space(filp, cmd, &bf);
 581         }
 582         case XFS_IOC_FSGEOMETRY_V1_32:
 583                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 584         case XFS_IOC_FSGROWFSDATA_32: {
 585                 struct xfs_growfs_data  in;
 586
 587                 if (xfs_compat_growfs_data_copyin(&in, arg))
 588                         return -EFAULT;
 589                 error = mnt_want_write_file(filp);
 590                 if (error)
 591                         return error;
 592                 error = xfs_growfs_data(mp, &in);
 593                 mnt_drop_write_file(filp);
 594                 return error;
 595         }
 596         case XFS_IOC_FSGROWFSRT_32: {
 597                 struct xfs_growfs_rt    in;
 598
 599                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 600                         return -EFAULT;
 601                 error = mnt_want_write_file(filp);
 602                 if (error)
 603                         return error;
 604                 error = xfs_growfs_rt(mp, &in);
 605                 mnt_drop_write_file(filp);
 606                 return error;
 607         }
 608 #endif
 609         /* long changes size, but xfs only copiese out 32 bits */
 610         case XFS_IOC_GETXFLAGS_32:
 611         case XFS_IOC_SETXFLAGS_32:
 612         case XFS_IOC_GETVERSION_32:
 613                 cmd = _NATIVE_IOC(cmd, long);
 614                 return xfs_file_ioctl(filp, cmd, p);
 615         case XFS_IOC_SWAPEXT_32: {
 616                 struct xfs_swapext        sxp;
 617                 struct compat_xfs_swapext __user *sxu = arg;
 618
 619                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 620                 if (copy_from_user(&sxp, sxu,
 621                                    offsetof(struct xfs_swapext, sx_stat)) ||
 622                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 623                         return -EFAULT;
 624                 error = mnt_want_write_file(filp);
 625                 if (error)
 626                         return error;
 627                 error = xfs_ioc_swapext(&sxp);
 628                 mnt_drop_write_file(filp);
 629                 return error;
 630         }
 631         case XFS_IOC_FSBULKSTAT_32:
 632         case XFS_IOC_FSBULKSTAT_SINGLE_32:
 633         case XFS_IOC_FSINUMBERS_32:
 634                 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
 635         case XFS_IOC_FD_TO_HANDLE_32:
 636         case XFS_IOC_PATH_TO_HANDLE_32:
 637         case XFS_IOC_PATH_TO_FSHANDLE_32: {
 638                 struct xfs_fsop_handlereq       hreq;
 639
 640                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 641                         return -EFAULT;
 642                 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
 643                 return xfs_find_handle(cmd, &hreq);
 644         }
 645         case XFS_IOC_OPEN_BY_HANDLE_32: {
 646                 struct xfs_fsop_handlereq       hreq;
 647
 648                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 649                         return -EFAULT;
 650                 return xfs_open_by_handle(filp, &hreq);
 651         }
 652         case XFS_IOC_READLINK_BY_HANDLE_32: {
 653                 struct xfs_fsop_handlereq       hreq;
 654
 655                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 656                         return -EFAULT;
 657                 return xfs_readlink_by_handle(filp, &hreq);
 658         }
 659         case XFS_IOC_ATTRLIST_BY_HANDLE_32:
 660                 return xfs_compat_attrlist_by_handle(filp, arg);
 661         case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 662                 return xfs_compat_attrmulti_by_handle(filp, arg);
 663         case XFS_IOC_FSSETDM_BY_HANDLE_32:
 664                 return xfs_compat_fssetdm_by_handle(filp, arg);
 665         default:
 666                 return -ENOIOCTLCMD;
 667         }
 668 }