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 <asm/uaccess.h>
  23 #include "xfs.h"
  24 #include "xfs_fs.h"
  25 #include "xfs_format.h"
  26 #include "xfs_log_format.h"
  27 #include "xfs_trans_resv.h"
  28 #include "xfs_sb.h"
  29 #include "xfs_ag.h"
  30 #include "xfs_mount.h"
  31 #include "xfs_vnode.h"
  32 #include "xfs_inode.h"
  33 #include "xfs_itable.h"
  34 #include "xfs_error.h"
  35 #include "xfs_fsops.h"
  36 #include "xfs_alloc.h"
  37 #include "xfs_rtalloc.h"
  38 #include "xfs_attr.h"
  39 #include "xfs_ioctl.h"
  40 #include "xfs_ioctl32.h"
  41 #include "xfs_trace.h"
  42
  43 #define  _NATIVE_IOC(cmd, type) \
  44           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  45
  46 #ifdef BROKEN_X86_ALIGNMENT
  47 STATIC int
  48 xfs_compat_flock64_copyin(
  49         xfs_flock64_t           *bf,
  50         compat_xfs_flock64_t    __user *arg32)
  51 {
  52         if (get_user(bf->l_type,        &arg32->l_type) ||
  53             get_user(bf->l_whence,      &arg32->l_whence) ||
  54             get_user(bf->l_start,       &arg32->l_start) ||
  55             get_user(bf->l_len,         &arg32->l_len) ||
  56             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  57             get_user(bf->l_pid,         &arg32->l_pid) ||
  58             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  59                 return -EFAULT;
  60         return 0;
  61 }
  62
  63 STATIC int
  64 xfs_compat_ioc_fsgeometry_v1(
  65         struct xfs_mount          *mp,
  66         compat_xfs_fsop_geom_v1_t __user *arg32)
  67 {
  68         xfs_fsop_geom_t           fsgeo;
  69         int                       error;
  70
  71         error = xfs_fs_geometry(mp, &fsgeo, 3);
  72         if (error)
  73                 return -error;
  74         /* The 32-bit variant simply has some padding at the end */
  75         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  76                 return -EFAULT;
  77         return 0;
  78 }
  79
  80 STATIC int
  81 xfs_compat_growfs_data_copyin(
  82         struct xfs_growfs_data   *in,
  83         compat_xfs_growfs_data_t __user *arg32)
  84 {
  85         if (get_user(in->newblocks, &arg32->newblocks) ||
  86             get_user(in->imaxpct,   &arg32->imaxpct))
  87                 return -EFAULT;
  88         return 0;
  89 }
  90
  91 STATIC int
  92 xfs_compat_growfs_rt_copyin(
  93         struct xfs_growfs_rt     *in,
  94         compat_xfs_growfs_rt_t  __user *arg32)
  95 {
  96         if (get_user(in->newblocks, &arg32->newblocks) ||
  97             get_user(in->extsize,   &arg32->extsize))
  98                 return -EFAULT;
  99         return 0;
 100 }
 101
 102 STATIC int
 103 xfs_inumbers_fmt_compat(
 104         void                    __user *ubuffer,
 105         const xfs_inogrp_t      *buffer,
 106         long                    count,
 107         long                    *written)
 108 {
 109         compat_xfs_inogrp_t     __user *p32 = ubuffer;
 110         long                    i;
 111
 112         for (i = 0; i < count; i++) {
 113                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
 114                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
 115                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 116                         return -EFAULT;
 117         }
 118         *written = count * sizeof(*p32);
 119         return 0;
 120 }
 121
 122 #else
 123 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 124 #endif  /* BROKEN_X86_ALIGNMENT */
 125
 126 STATIC int
 127 xfs_ioctl32_bstime_copyin(
 128         xfs_bstime_t            *bstime,
 129         compat_xfs_bstime_t     __user *bstime32)
 130 {
 131         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 132
 133         if (get_user(sec32,             &bstime32->tv_sec)      ||
 134             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 135                 return -EFAULT;
 136         bstime->tv_sec = sec32;
 137         return 0;
 138 }
 139
 140 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 141 STATIC int
 142 xfs_ioctl32_bstat_copyin(
 143         xfs_bstat_t             *bstat,
 144         compat_xfs_bstat_t      __user *bstat32)
 145 {
 146         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 147             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 148             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 149             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 150             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 151             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 152             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 153             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 154             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 155             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 156             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 157             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 158             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 159             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 160             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 161             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 162             get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
 163             get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
 164             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 165             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 166             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 167                 return -EFAULT;
 168         return 0;
 169 }
 170
 171 /* XFS_IOC_FSBULKSTAT and friends */
 172
 173 STATIC int
 174 xfs_bstime_store_compat(
 175         compat_xfs_bstime_t     __user *p32,
 176         const xfs_bstime_t      *p)
 177 {
 178         __s32                   sec32;
 179
 180         sec32 = p->tv_sec;
 181         if (put_user(sec32, &p32->tv_sec) ||
 182             put_user(p->tv_nsec, &p32->tv_nsec))
 183                 return -EFAULT;
 184         return 0;
 185 }
 186
 187 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 188 STATIC int
 189 xfs_bulkstat_one_fmt_compat(
 190         void                    __user *ubuffer,
 191         int                     ubsize,
 192         int                     *ubused,
 193         const xfs_bstat_t       *buffer)
 194 {
 195         compat_xfs_bstat_t      __user *p32 = ubuffer;
 196
 197         if (ubsize < sizeof(*p32))
 198                 return ENOMEM;
 199
 200         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 201             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 202             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 203             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 204             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 205             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 206             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 207             put_user(buffer->bs_size,     &p32->bs_size)        ||
 208             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 209             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 210             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 211             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 212             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 213             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 214             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 215             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 216             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 217             put_user(buffer->bs_projid_hi,      &p32->bs_projid_hi)     ||
 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 > 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(dentry->d_inode), 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                                         dentry->d_inode, 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                                         dentry->d_inode, 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                                         dentry->d_inode, 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(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
 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(dentry->d_inode), 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                     ioflags = 0;
 537         int                     error;
 538
 539         if (filp->f_mode & FMODE_NOCMTIME)
 540                 ioflags |= IO_INVIS;
 541
 542         trace_xfs_file_compat_ioctl(ip);
 543
 544         switch (cmd) {
 545         /* No size or alignment issues on any arch */
 546         case XFS_IOC_DIOINFO:
 547         case XFS_IOC_FSGEOMETRY:
 548         case XFS_IOC_FSGETXATTR:
 549         case XFS_IOC_FSSETXATTR:
 550         case XFS_IOC_FSGETXATTRA:
 551         case XFS_IOC_FSSETDM:
 552         case XFS_IOC_GETBMAP:
 553         case XFS_IOC_GETBMAPA:
 554         case XFS_IOC_GETBMAPX:
 555         case XFS_IOC_FSCOUNTS:
 556         case XFS_IOC_SET_RESBLKS:
 557         case XFS_IOC_GET_RESBLKS:
 558         case XFS_IOC_FSGROWFSLOG:
 559         case XFS_IOC_GOINGDOWN:
 560         case XFS_IOC_ERROR_INJECTION:
 561         case XFS_IOC_ERROR_CLEARALL:
 562                 return xfs_file_ioctl(filp, cmd, p);
 563 #ifndef BROKEN_X86_ALIGNMENT
 564         /* These are handled fine if no alignment issues */
 565         case XFS_IOC_ALLOCSP:
 566         case XFS_IOC_FREESP:
 567         case XFS_IOC_RESVSP:
 568         case XFS_IOC_UNRESVSP:
 569         case XFS_IOC_ALLOCSP64:
 570         case XFS_IOC_FREESP64:
 571         case XFS_IOC_RESVSP64:
 572         case XFS_IOC_UNRESVSP64:
 573         case XFS_IOC_FSGEOMETRY_V1:
 574         case XFS_IOC_FSGROWFSDATA:
 575         case XFS_IOC_FSGROWFSRT:
 576         case XFS_IOC_ZERO_RANGE:
 577                 return xfs_file_ioctl(filp, cmd, p);
 578 #else
 579         case XFS_IOC_ALLOCSP_32:
 580         case XFS_IOC_FREESP_32:
 581         case XFS_IOC_ALLOCSP64_32:
 582         case XFS_IOC_FREESP64_32:
 583         case XFS_IOC_RESVSP_32:
 584         case XFS_IOC_UNRESVSP_32:
 585         case XFS_IOC_RESVSP64_32:
 586         case XFS_IOC_UNRESVSP64_32:
 587         case XFS_IOC_ZERO_RANGE_32: {
 588                 struct xfs_flock64      bf;
 589
 590                 if (xfs_compat_flock64_copyin(&bf, arg))
 591                         return -EFAULT;
 592                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 593                 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
 594         }
 595         case XFS_IOC_FSGEOMETRY_V1_32:
 596                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 597         case XFS_IOC_FSGROWFSDATA_32: {
 598                 struct xfs_growfs_data  in;
 599
 600                 if (xfs_compat_growfs_data_copyin(&in, arg))
 601                         return -EFAULT;
 602                 error = mnt_want_write_file(filp);
 603                 if (error)
 604                         return error;
 605                 error = xfs_growfs_data(mp, &in);
 606                 mnt_drop_write_file(filp);
 607                 return -error;
 608         }
 609         case XFS_IOC_FSGROWFSRT_32: {
 610                 struct xfs_growfs_rt    in;
 611
 612                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 613                         return -EFAULT;
 614                 error = mnt_want_write_file(filp);
 615                 if (error)
 616                         return error;
 617                 error = xfs_growfs_rt(mp, &in);
 618                 mnt_drop_write_file(filp);
 619                 return -error;
 620         }
 621 #endif
 622         /* long changes size, but xfs only copiese out 32 bits */
 623         case XFS_IOC_GETXFLAGS_32:
 624         case XFS_IOC_SETXFLAGS_32:
 625         case XFS_IOC_GETVERSION_32:
 626                 cmd = _NATIVE_IOC(cmd, long);
 627                 return xfs_file_ioctl(filp, cmd, p);
 628         case XFS_IOC_SWAPEXT_32: {
 629                 struct xfs_swapext        sxp;
 630                 struct compat_xfs_swapext __user *sxu = arg;
 631
 632                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 633                 if (copy_from_user(&sxp, sxu,
 634                                    offsetof(struct xfs_swapext, sx_stat)) ||
 635                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 636                         return -EFAULT;
 637                 error = mnt_want_write_file(filp);
 638                 if (error)
 639                         return error;
 640                 error = xfs_ioc_swapext(&sxp);
 641                 mnt_drop_write_file(filp);
 642                 return -error;
 643         }
 644         case XFS_IOC_FSBULKSTAT_32:
 645         case XFS_IOC_FSBULKSTAT_SINGLE_32:
 646         case XFS_IOC_FSINUMBERS_32:
 647                 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
 648         case XFS_IOC_FD_TO_HANDLE_32:
 649         case XFS_IOC_PATH_TO_HANDLE_32:
 650         case XFS_IOC_PATH_TO_FSHANDLE_32: {
 651                 struct xfs_fsop_handlereq       hreq;
 652
 653                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 654                         return -EFAULT;
 655                 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
 656                 return xfs_find_handle(cmd, &hreq);
 657         }
 658         case XFS_IOC_OPEN_BY_HANDLE_32: {
 659                 struct xfs_fsop_handlereq       hreq;
 660
 661                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 662                         return -EFAULT;
 663                 return xfs_open_by_handle(filp, &hreq);
 664         }
 665         case XFS_IOC_READLINK_BY_HANDLE_32: {
 666                 struct xfs_fsop_handlereq       hreq;
 667
 668                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 669                         return -EFAULT;
 670                 return xfs_readlink_by_handle(filp, &hreq);
 671         }
 672         case XFS_IOC_ATTRLIST_BY_HANDLE_32:
 673                 return xfs_compat_attrlist_by_handle(filp, arg);
 674         case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 675                 return xfs_compat_attrmulti_by_handle(filp, arg);
 676         case XFS_IOC_FSSETDM_BY_HANDLE_32:
 677                 return xfs_compat_fssetdm_by_handle(filp, arg);
 678         default:
 679                 return -ENOIOCTLCMD;
 680         }
 681 }