fs/xfs/xfs_ioctl32.c

   1 /*
   2  * Copyright (c) 2004-2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #include <linux/compat.h>
  19 #include <linux/ioctl.h>
  20 #include <linux/mount.h>
  21 #include <linux/slab.h>
  22 #include <linux/uaccess.h>
  23 #include <linux/fsmap.h>
  24 #include "xfs.h"
  25 #include "xfs_fs.h"
  26 #include "xfs_format.h"
  27 #include "xfs_log_format.h"
  28 #include "xfs_trans_resv.h"
  29 #include "xfs_mount.h"
  30 #include "xfs_inode.h"
  31 #include "xfs_itable.h"
  32 #include "xfs_error.h"
  33 #include "xfs_fsops.h"
  34 #include "xfs_alloc.h"
  35 #include "xfs_rtalloc.h"
  36 #include "xfs_attr.h"
  37 #include "xfs_ioctl.h"
  38 #include "xfs_ioctl32.h"
  39 #include "xfs_trace.h"
  40
  41 #define  _NATIVE_IOC(cmd, type) \
  42           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  43
  44 #ifdef BROKEN_X86_ALIGNMENT
  45 STATIC int
  46 xfs_compat_flock64_copyin(
  47         xfs_flock64_t           *bf,
  48         compat_xfs_flock64_t    __user *arg32)
  49 {
  50         if (get_user(bf->l_type,        &arg32->l_type) ||
  51             get_user(bf->l_whence,      &arg32->l_whence) ||
  52             get_user(bf->l_start,       &arg32->l_start) ||
  53             get_user(bf->l_len,         &arg32->l_len) ||
  54             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  55             get_user(bf->l_pid,         &arg32->l_pid) ||
  56             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  57                 return -EFAULT;
  58         return 0;
  59 }
  60
  61 STATIC int
  62 xfs_compat_ioc_fsgeometry_v1(
  63         struct xfs_mount          *mp,
  64         compat_xfs_fsop_geom_v1_t __user *arg32)
  65 {
  66         xfs_fsop_geom_t           fsgeo;
  67         int                       error;
  68
  69         error = xfs_fs_geometry(mp, &fsgeo, 3);
  70         if (error)
  71                 return error;
  72         /* The 32-bit variant simply has some padding at the end */
  73         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  74                 return -EFAULT;
  75         return 0;
  76 }
  77
  78 STATIC int
  79 xfs_compat_growfs_data_copyin(
  80         struct xfs_growfs_data   *in,
  81         compat_xfs_growfs_data_t __user *arg32)
  82 {
  83         if (get_user(in->newblocks, &arg32->newblocks) ||
  84             get_user(in->imaxpct,   &arg32->imaxpct))
  85                 return -EFAULT;
  86         return 0;
  87 }
  88
  89 STATIC int
  90 xfs_compat_growfs_rt_copyin(
  91         struct xfs_growfs_rt     *in,
  92         compat_xfs_growfs_rt_t  __user *arg32)
  93 {
  94         if (get_user(in->newblocks, &arg32->newblocks) ||
  95             get_user(in->extsize,   &arg32->extsize))
  96                 return -EFAULT;
  97         return 0;
  98 }
  99
 100 STATIC int
 101 xfs_inumbers_fmt_compat(
 102         void                    __user *ubuffer,
 103         const struct xfs_inogrp *buffer,
 104         long                    count,
 105         long                    *written)
 106 {
 107         compat_xfs_inogrp_t     __user *p32 = ubuffer;
 108         long                    i;
 109
 110         for (i = 0; i < count; i++) {
 111                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
 112                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
 113                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 114                         return -EFAULT;
 115         }
 116         *written = count * sizeof(*p32);
 117         return 0;
 118 }
 119
 120 #else
 121 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 122 #endif  /* BROKEN_X86_ALIGNMENT */
 123
 124 STATIC int
 125 xfs_ioctl32_bstime_copyin(
 126         xfs_bstime_t            *bstime,
 127         compat_xfs_bstime_t     __user *bstime32)
 128 {
 129         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 130
 131         if (get_user(sec32,             &bstime32->tv_sec)      ||
 132             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 133                 return -EFAULT;
 134         bstime->tv_sec = sec32;
 135         return 0;
 136 }
 137
 138 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 139 STATIC int
 140 xfs_ioctl32_bstat_copyin(
 141         xfs_bstat_t             *bstat,
 142         compat_xfs_bstat_t      __user *bstat32)
 143 {
 144         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 145             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 146             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 147             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 148             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 149             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 150             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 151             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 152             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 153             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 154             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 155             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 156             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 157             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 158             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 159             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 160             get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
 161             get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
 162             get_user(bstat->bs_forkoff, &bstat32->bs_forkoff)   ||
 163             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 164             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 165             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 166                 return -EFAULT;
 167         return 0;
 168 }
 169
 170 /* XFS_IOC_FSBULKSTAT and friends */
 171
 172 STATIC int
 173 xfs_bstime_store_compat(
 174         compat_xfs_bstime_t     __user *p32,
 175         const xfs_bstime_t      *p)
 176 {
 177         __s32                   sec32;
 178
 179         sec32 = p->tv_sec;
 180         if (put_user(sec32, &p32->tv_sec) ||
 181             put_user(p->tv_nsec, &p32->tv_nsec))
 182                 return -EFAULT;
 183         return 0;
 184 }
 185
 186 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 187 STATIC int
 188 xfs_bulkstat_one_fmt_compat(
 189         void                    __user *ubuffer,
 190         int                     ubsize,
 191         int                     *ubused,
 192         const xfs_bstat_t       *buffer)
 193 {
 194         compat_xfs_bstat_t      __user *p32 = ubuffer;
 195
 196         if (ubsize < sizeof(*p32))
 197                 return -ENOMEM;
 198
 199         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 200             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 201             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 202             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 203             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 204             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 205             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 206             put_user(buffer->bs_size,     &p32->bs_size)        ||
 207             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 208             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 209             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 210             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 211             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 212             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 213             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 214             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 215             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 216             put_user(buffer->bs_projid_hi,      &p32->bs_projid_hi)     ||
 217             put_user(buffer->bs_forkoff,  &p32->bs_forkoff)     ||
 218             put_user(buffer->bs_dmevmask, &p32->bs_dmevmask)    ||
 219             put_user(buffer->bs_dmstate,  &p32->bs_dmstate)     ||
 220             put_user(buffer->bs_aextents, &p32->bs_aextents))
 221                 return -EFAULT;
 222         if (ubused)
 223                 *ubused = sizeof(*p32);
 224         return 0;
 225 }
 226
 227 STATIC int
 228 xfs_bulkstat_one_compat(
 229         xfs_mount_t     *mp,            /* mount point for filesystem */
 230         xfs_ino_t       ino,            /* inode number to get data for */
 231         void            __user *buffer, /* buffer to place output in */
 232         int             ubsize,         /* size of buffer */
 233         int             *ubused,        /* bytes used by me */
 234         int             *stat)          /* BULKSTAT_RV_... */
 235 {
 236         return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 237                                     xfs_bulkstat_one_fmt_compat,
 238                                     ubused, stat);
 239 }
 240
 241 /* copied from xfs_ioctl.c */
 242 STATIC int
 243 xfs_compat_ioc_bulkstat(
 244         xfs_mount_t               *mp,
 245         unsigned int              cmd,
 246         compat_xfs_fsop_bulkreq_t __user *p32)
 247 {
 248         u32                     addr;
 249         xfs_fsop_bulkreq_t      bulkreq;
 250         int                     count;  /* # of records returned */
 251         xfs_ino_t               inlast; /* last inode number */
 252         int                     done;
 253         int                     error;
 254
 255         /* done = 1 if there are more stats to get and if bulkstat */
 256         /* should be called again (unused here, but used in dmapi) */
 257
 258         if (!capable(CAP_SYS_ADMIN))
 259                 return -EPERM;
 260
 261         if (XFS_FORCED_SHUTDOWN(mp))
 262                 return -EIO;
 263
 264         if (get_user(addr, &p32->lastip))
 265                 return -EFAULT;
 266         bulkreq.lastip = compat_ptr(addr);
 267         if (get_user(bulkreq.icount, &p32->icount) ||
 268             get_user(addr, &p32->ubuffer))
 269                 return -EFAULT;
 270         bulkreq.ubuffer = compat_ptr(addr);
 271         if (get_user(addr, &p32->ocount))
 272                 return -EFAULT;
 273         bulkreq.ocount = compat_ptr(addr);
 274
 275         if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
 276                 return -EFAULT;
 277
 278         if ((count = bulkreq.icount) <= 0)
 279                 return -EINVAL;
 280
 281         if (bulkreq.ubuffer == NULL)
 282                 return -EINVAL;
 283
 284         if (cmd == XFS_IOC_FSINUMBERS_32) {
 285                 error = xfs_inumbers(mp, &inlast, &count,
 286                                 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
 287         } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
 288                 int res;
 289
 290                 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
 291                                 sizeof(compat_xfs_bstat_t), NULL, &res);
 292         } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 293                 error = xfs_bulkstat(mp, &inlast, &count,
 294                         xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
 295                         bulkreq.ubuffer, &done);
 296         } else
 297                 error = -EINVAL;
 298         if (error)
 299                 return error;
 300
 301         if (bulkreq.ocount != NULL) {
 302                 if (copy_to_user(bulkreq.lastip, &inlast,
 303                                                 sizeof(xfs_ino_t)))
 304                         return -EFAULT;
 305
 306                 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
 307                         return -EFAULT;
 308         }
 309
 310         return 0;
 311 }
 312
 313 STATIC int
 314 xfs_compat_handlereq_copyin(
 315         xfs_fsop_handlereq_t            *hreq,
 316         compat_xfs_fsop_handlereq_t     __user *arg32)
 317 {
 318         compat_xfs_fsop_handlereq_t     hreq32;
 319
 320         if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
 321                 return -EFAULT;
 322
 323         hreq->fd = hreq32.fd;
 324         hreq->path = compat_ptr(hreq32.path);
 325         hreq->oflags = hreq32.oflags;
 326         hreq->ihandle = compat_ptr(hreq32.ihandle);
 327         hreq->ihandlen = hreq32.ihandlen;
 328         hreq->ohandle = compat_ptr(hreq32.ohandle);
 329         hreq->ohandlen = compat_ptr(hreq32.ohandlen);
 330
 331         return 0;
 332 }
 333
 334 STATIC struct dentry *
 335 xfs_compat_handlereq_to_dentry(
 336         struct file             *parfilp,
 337         compat_xfs_fsop_handlereq_t *hreq)
 338 {
 339         return xfs_handle_to_dentry(parfilp,
 340                         compat_ptr(hreq->ihandle), hreq->ihandlen);
 341 }
 342
 343 STATIC int
 344 xfs_compat_attrlist_by_handle(
 345         struct file             *parfilp,
 346         void                    __user *arg)
 347 {
 348         int                     error;
 349         attrlist_cursor_kern_t  *cursor;
 350         compat_xfs_fsop_attrlist_handlereq_t al_hreq;
 351         struct dentry           *dentry;
 352         char                    *kbuf;
 353
 354         if (!capable(CAP_SYS_ADMIN))
 355                 return -EPERM;
 356         if (copy_from_user(&al_hreq, arg,
 357                            sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
 358                 return -EFAULT;
 359         if (al_hreq.buflen < sizeof(struct attrlist) ||
 360             al_hreq.buflen > XFS_XATTR_LIST_MAX)
 361                 return -EINVAL;
 362
 363         /*
 364          * Reject flags, only allow namespaces.
 365          */
 366         if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
 367                 return -EINVAL;
 368
 369         dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 370         if (IS_ERR(dentry))
 371                 return PTR_ERR(dentry);
 372
 373         error = -ENOMEM;
 374         kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
 375         if (!kbuf)
 376                 goto out_dput;
 377
 378         cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
 379         error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen,
 380                                         al_hreq.flags, cursor);
 381         if (error)
 382                 goto out_kfree;
 383
 384         if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
 385                 error = -EFAULT;
 386
 387 out_kfree:
 388         kmem_free(kbuf);
 389 out_dput:
 390         dput(dentry);
 391         return error;
 392 }
 393
 394 STATIC int
 395 xfs_compat_attrmulti_by_handle(
 396         struct file                             *parfilp,
 397         void                                    __user *arg)
 398 {
 399         int                                     error;
 400         compat_xfs_attr_multiop_t               *ops;
 401         compat_xfs_fsop_attrmulti_handlereq_t   am_hreq;
 402         struct dentry                           *dentry;
 403         unsigned int                            i, size;
 404         unsigned char                           *attr_name;
 405
 406         if (!capable(CAP_SYS_ADMIN))
 407                 return -EPERM;
 408         if (copy_from_user(&am_hreq, arg,
 409                            sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
 410                 return -EFAULT;
 411
 412         /* overflow check */
 413         if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
 414                 return -E2BIG;
 415
 416         dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
 417         if (IS_ERR(dentry))
 418                 return PTR_ERR(dentry);
 419
 420         error = -E2BIG;
 421         size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
 422         if (!size || size > 16 * PAGE_SIZE)
 423                 goto out_dput;
 424
 425         ops = memdup_user(compat_ptr(am_hreq.ops), size);
 426         if (IS_ERR(ops)) {
 427                 error = PTR_ERR(ops);
 428                 goto out_dput;
 429         }
 430
 431         error = -ENOMEM;
 432         attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
 433         if (!attr_name)
 434                 goto out_kfree_ops;
 435
 436         error = 0;
 437         for (i = 0; i < am_hreq.opcount; i++) {
 438                 ops[i].am_error = strncpy_from_user((char *)attr_name,
 439                                 compat_ptr(ops[i].am_attrname),
 440                                 MAXNAMELEN);
 441                 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
 442                         error = -ERANGE;
 443                 if (ops[i].am_error < 0)
 444                         break;
 445
 446                 switch (ops[i].am_opcode) {
 447                 case ATTR_OP_GET:
 448                         ops[i].am_error = xfs_attrmulti_attr_get(
 449                                         d_inode(dentry), attr_name,
 450                                         compat_ptr(ops[i].am_attrvalue),
 451                                         &ops[i].am_length, ops[i].am_flags);
 452                         break;
 453                 case ATTR_OP_SET:
 454                         ops[i].am_error = mnt_want_write_file(parfilp);
 455                         if (ops[i].am_error)
 456                                 break;
 457                         ops[i].am_error = xfs_attrmulti_attr_set(
 458                                         d_inode(dentry), attr_name,
 459                                         compat_ptr(ops[i].am_attrvalue),
 460                                         ops[i].am_length, ops[i].am_flags);
 461                         mnt_drop_write_file(parfilp);
 462                         break;
 463                 case ATTR_OP_REMOVE:
 464                         ops[i].am_error = mnt_want_write_file(parfilp);
 465                         if (ops[i].am_error)
 466                                 break;
 467                         ops[i].am_error = xfs_attrmulti_attr_remove(
 468                                         d_inode(dentry), attr_name,
 469                                         ops[i].am_flags);
 470                         mnt_drop_write_file(parfilp);
 471                         break;
 472                 default:
 473                         ops[i].am_error = -EINVAL;
 474                 }
 475         }
 476
 477         if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 478                 error = -EFAULT;
 479
 480         kfree(attr_name);
 481  out_kfree_ops:
 482         kfree(ops);
 483  out_dput:
 484         dput(dentry);
 485         return error;
 486 }
 487
 488 STATIC int
 489 xfs_compat_fssetdm_by_handle(
 490         struct file             *parfilp,
 491         void                    __user *arg)
 492 {
 493         int                     error;
 494         struct fsdmidata        fsd;
 495         compat_xfs_fsop_setdm_handlereq_t dmhreq;
 496         struct dentry           *dentry;
 497
 498         if (!capable(CAP_MKNOD))
 499                 return -EPERM;
 500         if (copy_from_user(&dmhreq, arg,
 501                            sizeof(compat_xfs_fsop_setdm_handlereq_t)))
 502                 return -EFAULT;
 503
 504         dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
 505         if (IS_ERR(dentry))
 506                 return PTR_ERR(dentry);
 507
 508         if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
 509                 error = -EPERM;
 510                 goto out;
 511         }
 512
 513         if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
 514                 error = -EFAULT;
 515                 goto out;
 516         }
 517
 518         error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
 519                                  fsd.fsd_dmstate);
 520
 521 out:
 522         dput(dentry);
 523         return error;
 524 }
 525
 526 long
 527 xfs_file_compat_ioctl(
 528         struct file             *filp,
 529         unsigned                cmd,
 530         unsigned long           p)
 531 {
 532         struct inode            *inode = file_inode(filp);
 533         struct xfs_inode        *ip = XFS_I(inode);
 534         struct xfs_mount        *mp = ip->i_mount;
 535         void                    __user *arg = (void __user *)p;
 536         int                     error;
 537
 538         trace_xfs_file_compat_ioctl(ip);
 539
 540         switch (cmd) {
 541         /* No size or alignment issues on any arch */
 542         case XFS_IOC_DIOINFO:
 543         case XFS_IOC_FSGEOMETRY:
 544         case XFS_IOC_FSGETXATTR:
 545         case XFS_IOC_FSSETXATTR:
 546         case XFS_IOC_FSGETXATTRA:
 547         case XFS_IOC_FSSETDM:
 548         case XFS_IOC_GETBMAP:
 549         case XFS_IOC_GETBMAPA:
 550         case XFS_IOC_GETBMAPX:
 551         case XFS_IOC_FSCOUNTS:
 552         case XFS_IOC_SET_RESBLKS:
 553         case XFS_IOC_GET_RESBLKS:
 554         case XFS_IOC_FSGROWFSLOG:
 555         case XFS_IOC_GOINGDOWN:
 556         case XFS_IOC_ERROR_INJECTION:
 557         case XFS_IOC_ERROR_CLEARALL:
 558         case FS_IOC_GETFSMAP:
 559                 return xfs_file_ioctl(filp, cmd, p);
 560 #ifndef BROKEN_X86_ALIGNMENT
 561         /* These are handled fine if no alignment issues */
 562         case XFS_IOC_ALLOCSP:
 563         case XFS_IOC_FREESP:
 564         case XFS_IOC_RESVSP:
 565         case XFS_IOC_UNRESVSP:
 566         case XFS_IOC_ALLOCSP64:
 567         case XFS_IOC_FREESP64:
 568         case XFS_IOC_RESVSP64:
 569         case XFS_IOC_UNRESVSP64:
 570         case XFS_IOC_FSGEOMETRY_V1:
 571         case XFS_IOC_FSGROWFSDATA:
 572         case XFS_IOC_FSGROWFSRT:
 573         case XFS_IOC_ZERO_RANGE:
 574                 return xfs_file_ioctl(filp, cmd, p);
 575 #else
 576         case XFS_IOC_ALLOCSP_32:
 577         case XFS_IOC_FREESP_32:
 578         case XFS_IOC_ALLOCSP64_32:
 579         case XFS_IOC_FREESP64_32:
 580         case XFS_IOC_RESVSP_32:
 581         case XFS_IOC_UNRESVSP_32:
 582         case XFS_IOC_RESVSP64_32:
 583         case XFS_IOC_UNRESVSP64_32:
 584         case XFS_IOC_ZERO_RANGE_32: {
 585                 struct xfs_flock64      bf;
 586
 587                 if (xfs_compat_flock64_copyin(&bf, arg))
 588                         return -EFAULT;
 589                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 590                 return xfs_ioc_space(filp, cmd, &bf);
 591         }
 592         case XFS_IOC_FSGEOMETRY_V1_32:
 593                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 594         case XFS_IOC_FSGROWFSDATA_32: {
 595                 struct xfs_growfs_data  in;
 596
 597                 if (xfs_compat_growfs_data_copyin(&in, arg))
 598                         return -EFAULT;
 599                 error = mnt_want_write_file(filp);
 600                 if (error)
 601                         return error;
 602                 error = xfs_growfs_data(mp, &in);
 603                 mnt_drop_write_file(filp);
 604                 return error;
 605         }
 606         case XFS_IOC_FSGROWFSRT_32: {
 607                 struct xfs_growfs_rt    in;
 608
 609                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 610                         return -EFAULT;
 611                 error = mnt_want_write_file(filp);
 612                 if (error)
 613                         return error;
 614                 error = xfs_growfs_rt(mp, &in);
 615                 mnt_drop_write_file(filp);
 616                 return error;
 617         }
 618 #endif
 619         /* long changes size, but xfs only copiese out 32 bits */
 620         case XFS_IOC_GETXFLAGS_32:
 621         case XFS_IOC_SETXFLAGS_32:
 622         case XFS_IOC_GETVERSION_32:
 623                 cmd = _NATIVE_IOC(cmd, long);
 624                 return xfs_file_ioctl(filp, cmd, p);
 625         case XFS_IOC_SWAPEXT_32: {
 626                 struct xfs_swapext        sxp;
 627                 struct compat_xfs_swapext __user *sxu = arg;
 628
 629                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 630                 if (copy_from_user(&sxp, sxu,
 631                                    offsetof(struct xfs_swapext, sx_stat)) ||
 632                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 633                         return -EFAULT;
 634                 error = mnt_want_write_file(filp);
 635                 if (error)
 636                         return error;
 637                 error = xfs_ioc_swapext(&sxp);
 638                 mnt_drop_write_file(filp);
 639                 return error;
 640         }
 641         case XFS_IOC_FSBULKSTAT_32:
 642         case XFS_IOC_FSBULKSTAT_SINGLE_32:
 643         case XFS_IOC_FSINUMBERS_32:
 644                 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
 645         case XFS_IOC_FD_TO_HANDLE_32:
 646         case XFS_IOC_PATH_TO_HANDLE_32:
 647         case XFS_IOC_PATH_TO_FSHANDLE_32: {
 648                 struct xfs_fsop_handlereq       hreq;
 649
 650                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 651                         return -EFAULT;
 652                 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
 653                 return xfs_find_handle(cmd, &hreq);
 654         }
 655         case XFS_IOC_OPEN_BY_HANDLE_32: {
 656                 struct xfs_fsop_handlereq       hreq;
 657
 658                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 659                         return -EFAULT;
 660                 return xfs_open_by_handle(filp, &hreq);
 661         }
 662         case XFS_IOC_READLINK_BY_HANDLE_32: {
 663                 struct xfs_fsop_handlereq       hreq;
 664
 665                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 666                         return -EFAULT;
 667                 return xfs_readlink_by_handle(filp, &hreq);
 668         }
 669         case XFS_IOC_ATTRLIST_BY_HANDLE_32:
 670                 return xfs_compat_attrlist_by_handle(filp, arg);
 671         case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 672                 return xfs_compat_attrmulti_by_handle(filp, arg);
 673         case XFS_IOC_FSSETDM_BY_HANDLE_32:
 674                 return xfs_compat_fssetdm_by_handle(filp, arg);
 675         default:
 676                 return -ENOIOCTLCMD;
 677         }
 678 }