release/src-rt-6.x.4708/linux/linux-2.6.36/fs/xfs/linux-2.6/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_bit.h"
  26 #include "xfs_log.h"
  27 #include "xfs_inum.h"
  28 #include "xfs_trans.h"
  29 #include "xfs_sb.h"
  30 #include "xfs_ag.h"
  31 #include "xfs_mount.h"
  32 #include "xfs_bmap_btree.h"
  33 #include "xfs_vnode.h"
  34 #include "xfs_dinode.h"
  35 #include "xfs_inode.h"
  36 #include "xfs_itable.h"
  37 #include "xfs_error.h"
  38 #include "xfs_dfrag.h"
  39 #include "xfs_vnodeops.h"
  40 #include "xfs_fsops.h"
  41 #include "xfs_alloc.h"
  42 #include "xfs_rtalloc.h"
  43 #include "xfs_attr.h"
  44 #include "xfs_ioctl.h"
  45 #include "xfs_ioctl32.h"
  46 #include "xfs_trace.h"
  47
  48 #define  _NATIVE_IOC(cmd, type) \
  49           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  50
  51 #ifdef BROKEN_X86_ALIGNMENT
  52 STATIC int
  53 xfs_compat_flock64_copyin(
  54         xfs_flock64_t           *bf,
  55         compat_xfs_flock64_t    __user *arg32)
  56 {
  57         if (get_user(bf->l_type,        &arg32->l_type) ||
  58             get_user(bf->l_whence,      &arg32->l_whence) ||
  59             get_user(bf->l_start,       &arg32->l_start) ||
  60             get_user(bf->l_len,         &arg32->l_len) ||
  61             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  62             get_user(bf->l_pid,         &arg32->l_pid) ||
  63             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  64                 return -XFS_ERROR(EFAULT);
  65         return 0;
  66 }
  67
  68 STATIC int
  69 xfs_compat_ioc_fsgeometry_v1(
  70         struct xfs_mount          *mp,
  71         compat_xfs_fsop_geom_v1_t __user *arg32)
  72 {
  73         xfs_fsop_geom_t           fsgeo;
  74         int                       error;
  75
  76         error = xfs_fs_geometry(mp, &fsgeo, 3);
  77         if (error)
  78                 return -error;
  79         /* The 32-bit variant simply has some padding at the end */
  80         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  81                 return -XFS_ERROR(EFAULT);
  82         return 0;
  83 }
  84
  85 STATIC int
  86 xfs_compat_growfs_data_copyin(
  87         struct xfs_growfs_data   *in,
  88         compat_xfs_growfs_data_t __user *arg32)
  89 {
  90         if (get_user(in->newblocks, &arg32->newblocks) ||
  91             get_user(in->imaxpct,   &arg32->imaxpct))
  92                 return -XFS_ERROR(EFAULT);
  93         return 0;
  94 }
  95
  96 STATIC int
  97 xfs_compat_growfs_rt_copyin(
  98         struct xfs_growfs_rt     *in,
  99         compat_xfs_growfs_rt_t  __user *arg32)
 100 {
 101         if (get_user(in->newblocks, &arg32->newblocks) ||
 102             get_user(in->extsize,   &arg32->extsize))
 103                 return -XFS_ERROR(EFAULT);
 104         return 0;
 105 }
 106
 107 STATIC int
 108 xfs_inumbers_fmt_compat(
 109         void                    __user *ubuffer,
 110         const xfs_inogrp_t      *buffer,
 111         long                    count,
 112         long                    *written)
 113 {
 114         compat_xfs_inogrp_t     __user *p32 = ubuffer;
 115         long                    i;
 116
 117         for (i = 0; i < count; i++) {
 118                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
 119                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
 120                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 121                         return -XFS_ERROR(EFAULT);
 122         }
 123         *written = count * sizeof(*p32);
 124         return 0;
 125 }
 126
 127 #else
 128 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 129 #endif  /* BROKEN_X86_ALIGNMENT */
 130
 131 STATIC int
 132 xfs_ioctl32_bstime_copyin(
 133         xfs_bstime_t            *bstime,
 134         compat_xfs_bstime_t     __user *bstime32)
 135 {
 136         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 137
 138         if (get_user(sec32,             &bstime32->tv_sec)      ||
 139             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 140                 return -XFS_ERROR(EFAULT);
 141         bstime->tv_sec = sec32;
 142         return 0;
 143 }
 144
 145 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 146 STATIC int
 147 xfs_ioctl32_bstat_copyin(
 148         xfs_bstat_t             *bstat,
 149         compat_xfs_bstat_t      __user *bstat32)
 150 {
 151         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 152             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 153             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 154             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 155             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 156             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 157             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 158             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 159             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 160             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 161             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 162             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 163             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 164             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 165             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 166             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 167             get_user(bstat->bs_projid,  &bstat32->bs_projid)    ||
 168             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 169             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 170             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 171                 return -XFS_ERROR(EFAULT);
 172         return 0;
 173 }
 174
 175 /* XFS_IOC_FSBULKSTAT and friends */
 176
 177 STATIC int
 178 xfs_bstime_store_compat(
 179         compat_xfs_bstime_t     __user *p32,
 180         const xfs_bstime_t      *p)
 181 {
 182         __s32                   sec32;
 183
 184         sec32 = p->tv_sec;
 185         if (put_user(sec32, &p32->tv_sec) ||
 186             put_user(p->tv_nsec, &p32->tv_nsec))
 187                 return -XFS_ERROR(EFAULT);
 188         return 0;
 189 }
 190
 191 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 192 STATIC int
 193 xfs_bulkstat_one_fmt_compat(
 194         void                    __user *ubuffer,
 195         int                     ubsize,
 196         int                     *ubused,
 197         const xfs_bstat_t       *buffer)
 198 {
 199         compat_xfs_bstat_t      __user *p32 = ubuffer;
 200
 201         if (ubsize < sizeof(*p32))
 202                 return XFS_ERROR(ENOMEM);
 203
 204         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 205             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 206             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 207             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 208             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 209             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 210             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 211             put_user(buffer->bs_size,     &p32->bs_size)        ||
 212             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 213             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 214             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 215             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 216             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 217             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 218             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 219             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 220             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 221             put_user(buffer->bs_dmevmask, &p32->bs_dmevmask)    ||
 222             put_user(buffer->bs_dmstate,  &p32->bs_dmstate)     ||
 223             put_user(buffer->bs_aextents, &p32->bs_aextents))
 224                 return XFS_ERROR(EFAULT);
 225         if (ubused)
 226                 *ubused = sizeof(*p32);
 227         return 0;
 228 }
 229
 230 STATIC int
 231 xfs_bulkstat_one_compat(
 232         xfs_mount_t     *mp,            /* mount point for filesystem */
 233         xfs_ino_t       ino,            /* inode number to get data for */
 234         void            __user *buffer, /* buffer to place output in */
 235         int             ubsize,         /* size of buffer */
 236         int             *ubused,        /* bytes used by me */
 237         int             *stat)          /* BULKSTAT_RV_... */
 238 {
 239         return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 240                                     xfs_bulkstat_one_fmt_compat,
 241                                     ubused, stat);
 242 }
 243
 244 /* copied from xfs_ioctl.c */
 245 STATIC int
 246 xfs_compat_ioc_bulkstat(
 247         xfs_mount_t               *mp,
 248         unsigned int              cmd,
 249         compat_xfs_fsop_bulkreq_t __user *p32)
 250 {
 251         u32                     addr;
 252         xfs_fsop_bulkreq_t      bulkreq;
 253         int                     count;  /* # of records returned */
 254         xfs_ino_t               inlast; /* last inode number */
 255         int                     done;
 256         int                     error;
 257
 258         /* done = 1 if there are more stats to get and if bulkstat */
 259         /* should be called again (unused here, but used in dmapi) */
 260
 261         if (!capable(CAP_SYS_ADMIN))
 262                 return -XFS_ERROR(EPERM);
 263
 264         if (XFS_FORCED_SHUTDOWN(mp))
 265                 return -XFS_ERROR(EIO);
 266
 267         if (get_user(addr, &p32->lastip))
 268                 return -XFS_ERROR(EFAULT);
 269         bulkreq.lastip = compat_ptr(addr);
 270         if (get_user(bulkreq.icount, &p32->icount) ||
 271             get_user(addr, &p32->ubuffer))
 272                 return -XFS_ERROR(EFAULT);
 273         bulkreq.ubuffer = compat_ptr(addr);
 274         if (get_user(addr, &p32->ocount))
 275                 return -XFS_ERROR(EFAULT);
 276         bulkreq.ocount = compat_ptr(addr);
 277
 278         if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
 279                 return -XFS_ERROR(EFAULT);
 280
 281         if ((count = bulkreq.icount) <= 0)
 282                 return -XFS_ERROR(EINVAL);
 283
 284         if (bulkreq.ubuffer == NULL)
 285                 return -XFS_ERROR(EINVAL);
 286
 287         if (cmd == XFS_IOC_FSINUMBERS_32) {
 288                 error = xfs_inumbers(mp, &inlast, &count,
 289                                 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
 290         } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
 291                 int res;
 292
 293                 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
 294                                 sizeof(compat_xfs_bstat_t), 0, &res);
 295         } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 296                 error = xfs_bulkstat(mp, &inlast, &count,
 297                         xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
 298                         bulkreq.ubuffer, &done);
 299         } else
 300                 error = XFS_ERROR(EINVAL);
 301         if (error)
 302                 return -error;
 303
 304         if (bulkreq.ocount != NULL) {
 305                 if (copy_to_user(bulkreq.lastip, &inlast,
 306                                                 sizeof(xfs_ino_t)))
 307                         return -XFS_ERROR(EFAULT);
 308
 309                 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
 310                         return -XFS_ERROR(EFAULT);
 311         }
 312
 313         return 0;
 314 }
 315
 316 STATIC int
 317 xfs_compat_handlereq_copyin(
 318         xfs_fsop_handlereq_t            *hreq,
 319         compat_xfs_fsop_handlereq_t     __user *arg32)
 320 {
 321         compat_xfs_fsop_handlereq_t     hreq32;
 322
 323         if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
 324                 return -XFS_ERROR(EFAULT);
 325
 326         hreq->fd = hreq32.fd;
 327         hreq->path = compat_ptr(hreq32.path);
 328         hreq->oflags = hreq32.oflags;
 329         hreq->ihandle = compat_ptr(hreq32.ihandle);
 330         hreq->ihandlen = hreq32.ihandlen;
 331         hreq->ohandle = compat_ptr(hreq32.ohandle);
 332         hreq->ohandlen = compat_ptr(hreq32.ohandlen);
 333
 334         return 0;
 335 }
 336
 337 STATIC struct dentry *
 338 xfs_compat_handlereq_to_dentry(
 339         struct file             *parfilp,
 340         compat_xfs_fsop_handlereq_t *hreq)
 341 {
 342         return xfs_handle_to_dentry(parfilp,
 343                         compat_ptr(hreq->ihandle), hreq->ihandlen);
 344 }
 345
 346 STATIC int
 347 xfs_compat_attrlist_by_handle(
 348         struct file             *parfilp,
 349         void                    __user *arg)
 350 {
 351         int                     error;
 352         attrlist_cursor_kern_t  *cursor;
 353         compat_xfs_fsop_attrlist_handlereq_t al_hreq;
 354         struct dentry           *dentry;
 355         char                    *kbuf;
 356
 357         if (!capable(CAP_SYS_ADMIN))
 358                 return -XFS_ERROR(EPERM);
 359         if (copy_from_user(&al_hreq, arg,
 360                            sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
 361                 return -XFS_ERROR(EFAULT);
 362         if (al_hreq.buflen > XATTR_LIST_MAX)
 363                 return -XFS_ERROR(EINVAL);
 364
 365         /*
 366          * Reject flags, only allow namespaces.
 367          */
 368         if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
 369                 return -XFS_ERROR(EINVAL);
 370
 371         dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 372         if (IS_ERR(dentry))
 373                 return PTR_ERR(dentry);
 374
 375         error = -ENOMEM;
 376         kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
 377         if (!kbuf)
 378                 goto out_dput;
 379
 380         cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
 381         error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
 382                                         al_hreq.flags, cursor);
 383         if (error)
 384                 goto out_kfree;
 385
 386         if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
 387                 error = -EFAULT;
 388
 389  out_kfree:
 390         kfree(kbuf);
 391  out_dput:
 392         dput(dentry);
 393         return error;
 394 }
 395
 396 STATIC int
 397 xfs_compat_attrmulti_by_handle(
 398         struct file                             *parfilp,
 399         void                                    __user *arg)
 400 {
 401         int                                     error;
 402         compat_xfs_attr_multiop_t               *ops;
 403         compat_xfs_fsop_attrmulti_handlereq_t   am_hreq;
 404         struct dentry                           *dentry;
 405         unsigned int                            i, size;
 406         unsigned char                           *attr_name;
 407
 408         if (!capable(CAP_SYS_ADMIN))
 409                 return -XFS_ERROR(EPERM);
 410         if (copy_from_user(&am_hreq, arg,
 411                            sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
 412                 return -XFS_ERROR(EFAULT);
 413
 414         /* overflow check */
 415         if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
 416                 return -E2BIG;
 417
 418         dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
 419         if (IS_ERR(dentry))
 420                 return PTR_ERR(dentry);
 421
 422         error = E2BIG;
 423         size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
 424         if (!size || size > 16 * PAGE_SIZE)
 425                 goto out_dput;
 426
 427         ops = memdup_user(compat_ptr(am_hreq.ops), size);
 428         if (IS_ERR(ops)) {
 429                 error = PTR_ERR(ops);
 430                 goto out_dput;
 431         }
 432
 433         attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
 434         if (!attr_name)
 435                 goto out_kfree_ops;
 436
 437         error = 0;
 438         for (i = 0; i < am_hreq.opcount; i++) {
 439                 ops[i].am_error = strncpy_from_user((char *)attr_name,
 440                                 compat_ptr(ops[i].am_attrname),
 441                                 MAXNAMELEN);
 442                 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
 443                         error = -ERANGE;
 444                 if (ops[i].am_error < 0)
 445                         break;
 446
 447                 switch (ops[i].am_opcode) {
 448                 case ATTR_OP_GET:
 449                         ops[i].am_error = xfs_attrmulti_attr_get(
 450                                         dentry->d_inode, attr_name,
 451                                         compat_ptr(ops[i].am_attrvalue),
 452                                         &ops[i].am_length, ops[i].am_flags);
 453                         break;
 454                 case ATTR_OP_SET:
 455                         ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
 456                         if (ops[i].am_error)
 457                                 break;
 458                         ops[i].am_error = xfs_attrmulti_attr_set(
 459                                         dentry->d_inode, attr_name,
 460                                         compat_ptr(ops[i].am_attrvalue),
 461                                         ops[i].am_length, ops[i].am_flags);
 462                         mnt_drop_write(parfilp->f_path.mnt);
 463                         break;
 464                 case ATTR_OP_REMOVE:
 465                         ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
 466                         if (ops[i].am_error)
 467                                 break;
 468                         ops[i].am_error = xfs_attrmulti_attr_remove(
 469                                         dentry->d_inode, attr_name,
 470                                         ops[i].am_flags);
 471                         mnt_drop_write(parfilp->f_path.mnt);
 472                         break;
 473                 default:
 474                         ops[i].am_error = EINVAL;
 475                 }
 476         }
 477
 478         if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 479                 error = XFS_ERROR(EFAULT);
 480
 481         kfree(attr_name);
 482  out_kfree_ops:
 483         kfree(ops);
 484  out_dput:
 485         dput(dentry);
 486         return -error;
 487 }
 488
 489 STATIC int
 490 xfs_compat_fssetdm_by_handle(
 491         struct file             *parfilp,
 492         void                    __user *arg)
 493 {
 494         int                     error;
 495         struct fsdmidata        fsd;
 496         compat_xfs_fsop_setdm_handlereq_t dmhreq;
 497         struct dentry           *dentry;
 498
 499         if (!capable(CAP_MKNOD))
 500                 return -XFS_ERROR(EPERM);
 501         if (copy_from_user(&dmhreq, arg,
 502                            sizeof(compat_xfs_fsop_setdm_handlereq_t)))
 503                 return -XFS_ERROR(EFAULT);
 504
 505         dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
 506         if (IS_ERR(dentry))
 507                 return PTR_ERR(dentry);
 508
 509         if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
 510                 error = -XFS_ERROR(EPERM);
 511                 goto out;
 512         }
 513
 514         if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
 515                 error = -XFS_ERROR(EFAULT);
 516                 goto out;
 517         }
 518
 519         error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
 520                                  fsd.fsd_dmstate);
 521
 522 out:
 523         dput(dentry);
 524         return error;
 525 }
 526
 527 long
 528 xfs_file_compat_ioctl(
 529         struct file             *filp,
 530         unsigned                cmd,
 531         unsigned long           p)
 532 {
 533         struct inode            *inode = filp->f_path.dentry->d_inode;
 534         struct xfs_inode        *ip = XFS_I(inode);
 535         struct xfs_mount        *mp = ip->i_mount;
 536         void                    __user *arg = (void __user *)p;
 537         int                     ioflags = 0;
 538         int                     error;
 539
 540         if (filp->f_mode & FMODE_NOCMTIME)
 541                 ioflags |= IO_INVIS;
 542
 543         trace_xfs_file_compat_ioctl(ip);
 544
 545         switch (cmd) {
 546         /* No size or alignment issues on any arch */
 547         case XFS_IOC_DIOINFO:
 548         case XFS_IOC_FSGEOMETRY:
 549         case XFS_IOC_FSGETXATTR:
 550         case XFS_IOC_FSSETXATTR:
 551         case XFS_IOC_FSGETXATTRA:
 552         case XFS_IOC_FSSETDM:
 553         case XFS_IOC_GETBMAP:
 554         case XFS_IOC_GETBMAPA:
 555         case XFS_IOC_GETBMAPX:
 556         case XFS_IOC_FSCOUNTS:
 557         case XFS_IOC_SET_RESBLKS:
 558         case XFS_IOC_GET_RESBLKS:
 559         case XFS_IOC_FSGROWFSLOG:
 560         case XFS_IOC_GOINGDOWN:
 561         case XFS_IOC_ERROR_INJECTION:
 562         case XFS_IOC_ERROR_CLEARALL:
 563                 return xfs_file_ioctl(filp, cmd, p);
 564 #ifndef BROKEN_X86_ALIGNMENT
 565         /* These are handled fine if no alignment issues */
 566         case XFS_IOC_ALLOCSP:
 567         case XFS_IOC_FREESP:
 568         case XFS_IOC_RESVSP:
 569         case XFS_IOC_UNRESVSP:
 570         case XFS_IOC_ALLOCSP64:
 571         case XFS_IOC_FREESP64:
 572         case XFS_IOC_RESVSP64:
 573         case XFS_IOC_UNRESVSP64:
 574         case XFS_IOC_FSGEOMETRY_V1:
 575         case XFS_IOC_FSGROWFSDATA:
 576         case XFS_IOC_FSGROWFSRT:
 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                 struct xfs_flock64      bf;
 588
 589                 if (xfs_compat_flock64_copyin(&bf, arg))
 590                         return -XFS_ERROR(EFAULT);
 591                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 592                 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
 593         }
 594         case XFS_IOC_FSGEOMETRY_V1_32:
 595                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 596         case XFS_IOC_FSGROWFSDATA_32: {
 597                 struct xfs_growfs_data  in;
 598
 599                 if (xfs_compat_growfs_data_copyin(&in, arg))
 600                         return -XFS_ERROR(EFAULT);
 601                 error = xfs_growfs_data(mp, &in);
 602                 return -error;
 603         }
 604         case XFS_IOC_FSGROWFSRT_32: {
 605                 struct xfs_growfs_rt    in;
 606
 607                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 608                         return -XFS_ERROR(EFAULT);
 609                 error = xfs_growfs_rt(mp, &in);
 610                 return -error;
 611         }
 612 #endif
 613         /* long changes size, but xfs only copiese out 32 bits */
 614         case XFS_IOC_GETXFLAGS_32:
 615         case XFS_IOC_SETXFLAGS_32:
 616         case XFS_IOC_GETVERSION_32:
 617                 cmd = _NATIVE_IOC(cmd, long);
 618                 return xfs_file_ioctl(filp, cmd, p);
 619         case XFS_IOC_SWAPEXT_32: {
 620                 struct xfs_swapext        sxp;
 621                 struct compat_xfs_swapext __user *sxu = arg;
 622
 623                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 624                 if (copy_from_user(&sxp, sxu,
 625                                    offsetof(struct xfs_swapext, sx_stat)) ||
 626                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 627                         return -XFS_ERROR(EFAULT);
 628                 error = xfs_swapext(&sxp);
 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 -XFS_ERROR(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 -XFS_ERROR(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 -XFS_ERROR(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 -XFS_ERROR(ENOIOCTLCMD);
 667         }
 668 }