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_log.h"
  26 #include "xfs_trans.h"
  27 #include "xfs_sb.h"
  28 #include "xfs_ag.h"
  29 #include "xfs_mount.h"
  30 #include "xfs_bmap_btree.h"
  31 #include "xfs_vnode.h"
  32 #include "xfs_dinode.h"
  33 #include "xfs_inode.h"
  34 #include "xfs_itable.h"
  35 #include "xfs_error.h"
  36 #include "xfs_dfrag.h"
  37 #include "xfs_vnodeops.h"
  38 #include "xfs_fsops.h"
  39 #include "xfs_alloc.h"
  40 #include "xfs_rtalloc.h"
  41 #include "xfs_attr.h"
  42 #include "xfs_ioctl.h"
  43 #include "xfs_ioctl32.h"
  44 #include "xfs_trace.h"
  45
  46 #define  _NATIVE_IOC(cmd, type) \
  47           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  48
  49 #ifdef BROKEN_X86_ALIGNMENT
  50 STATIC int
  51 xfs_compat_flock64_copyin(
  52         xfs_flock64_t           *bf,
  53         compat_xfs_flock64_t    __user *arg32)
  54 {
  55         if (get_user(bf->l_type,        &arg32->l_type) ||
  56             get_user(bf->l_whence,      &arg32->l_whence) ||
  57             get_user(bf->l_start,       &arg32->l_start) ||
  58             get_user(bf->l_len,         &arg32->l_len) ||
  59             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  60             get_user(bf->l_pid,         &arg32->l_pid) ||
  61             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  62                 return -XFS_ERROR(EFAULT);
  63         return 0;
  64 }
  65
  66 STATIC int
  67 xfs_compat_ioc_fsgeometry_v1(
  68         struct xfs_mount          *mp,
  69         compat_xfs_fsop_geom_v1_t __user *arg32)
  70 {
  71         xfs_fsop_geom_t           fsgeo;
  72         int                       error;
  73
  74         error = xfs_fs_geometry(mp, &fsgeo, 3);
  75         if (error)
  76                 return -error;
  77         /* The 32-bit variant simply has some padding at the end */
  78         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  79                 return -XFS_ERROR(EFAULT);
  80         return 0;
  81 }
  82
  83 STATIC int
  84 xfs_compat_growfs_data_copyin(
  85         struct xfs_growfs_data   *in,
  86         compat_xfs_growfs_data_t __user *arg32)
  87 {
  88         if (get_user(in->newblocks, &arg32->newblocks) ||
  89             get_user(in->imaxpct,   &arg32->imaxpct))
  90                 return -XFS_ERROR(EFAULT);
  91         return 0;
  92 }
  93
  94 STATIC int
  95 xfs_compat_growfs_rt_copyin(
  96         struct xfs_growfs_rt     *in,
  97         compat_xfs_growfs_rt_t  __user *arg32)
  98 {
  99         if (get_user(in->newblocks, &arg32->newblocks) ||
 100             get_user(in->extsize,   &arg32->extsize))
 101                 return -XFS_ERROR(EFAULT);
 102         return 0;
 103 }
 104
 105 STATIC int
 106 xfs_inumbers_fmt_compat(
 107         void                    __user *ubuffer,
 108         const xfs_inogrp_t      *buffer,
 109         long                    count,
 110         long                    *written)
 111 {
 112         compat_xfs_inogrp_t     __user *p32 = ubuffer;
 113         long                    i;
 114
 115         for (i = 0; i < count; i++) {
 116                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
 117                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
 118                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 119                         return -XFS_ERROR(EFAULT);
 120         }
 121         *written = count * sizeof(*p32);
 122         return 0;
 123 }
 124
 125 #else
 126 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 127 #endif  /* BROKEN_X86_ALIGNMENT */
 128
 129 STATIC int
 130 xfs_ioctl32_bstime_copyin(
 131         xfs_bstime_t            *bstime,
 132         compat_xfs_bstime_t     __user *bstime32)
 133 {
 134         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 135
 136         if (get_user(sec32,             &bstime32->tv_sec)      ||
 137             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 138                 return -XFS_ERROR(EFAULT);
 139         bstime->tv_sec = sec32;
 140         return 0;
 141 }
 142
 143 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 144 STATIC int
 145 xfs_ioctl32_bstat_copyin(
 146         xfs_bstat_t             *bstat,
 147         compat_xfs_bstat_t      __user *bstat32)
 148 {
 149         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 150             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 151             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 152             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 153             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 154             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 155             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 156             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 157             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 158             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 159             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 160             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 161             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 162             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 163             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 164             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 165             get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
 166             get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
 167             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 168             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 169             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 170                 return -XFS_ERROR(EFAULT);
 171         return 0;
 172 }
 173
 174 /* XFS_IOC_FSBULKSTAT and friends */
 175
 176 STATIC int
 177 xfs_bstime_store_compat(
 178         compat_xfs_bstime_t     __user *p32,
 179         const xfs_bstime_t      *p)
 180 {
 181         __s32                   sec32;
 182
 183         sec32 = p->tv_sec;
 184         if (put_user(sec32, &p32->tv_sec) ||
 185             put_user(p->tv_nsec, &p32->tv_nsec))
 186                 return -XFS_ERROR(EFAULT);
 187         return 0;
 188 }
 189
 190 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 191 STATIC int
 192 xfs_bulkstat_one_fmt_compat(
 193         void                    __user *ubuffer,
 194         int                     ubsize,
 195         int                     *ubused,
 196         const xfs_bstat_t       *buffer)
 197 {
 198         compat_xfs_bstat_t      __user *p32 = ubuffer;
 199
 200         if (ubsize < sizeof(*p32))
 201                 return XFS_ERROR(ENOMEM);
 202
 203         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 204             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 205             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 206             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 207             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 208             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 209             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 210             put_user(buffer->bs_size,     &p32->bs_size)        ||
 211             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 212             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 213             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 214             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 215             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 216             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 217             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 218             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 219             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 220             put_user(buffer->bs_projid_hi,      &p32->bs_projid_hi)     ||
 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), NULL, &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 < sizeof(struct attrlist) ||
 363             al_hreq.buflen > XATTR_LIST_MAX)
 364                 return -XFS_ERROR(EINVAL);
 365
 366         /*
 367          * Reject flags, only allow namespaces.
 368          */
 369         if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
 370                 return -XFS_ERROR(EINVAL);
 371
 372         dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 373         if (IS_ERR(dentry))
 374                 return PTR_ERR(dentry);
 375
 376         error = -ENOMEM;
 377         kbuf = kmem_zalloc(al_hreq.buflen, KM_SLEEP | KM_MAYFAIL);
 378         if (!kbuf) {
 379                 kbuf = kmem_zalloc_large(al_hreq.buflen);
 380                 if (!kbuf)
 381                         goto out_dput;
 382         }
 383
 384         cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
 385         error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
 386                                         al_hreq.flags, cursor);
 387         if (error)
 388                 goto out_kfree;
 389
 390         if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
 391                 error = -EFAULT;
 392
 393  out_kfree:
 394         if (is_vmalloc_addr(kbuf))
 395                 kmem_free_large(kbuf);
 396         else
 397                 kmem_free(kbuf);
 398  out_dput:
 399         dput(dentry);
 400         return error;
 401 }
 402
 403 STATIC int
 404 xfs_compat_attrmulti_by_handle(
 405         struct file                             *parfilp,
 406         void                                    __user *arg)
 407 {
 408         int                                     error;
 409         compat_xfs_attr_multiop_t               *ops;
 410         compat_xfs_fsop_attrmulti_handlereq_t   am_hreq;
 411         struct dentry                           *dentry;
 412         unsigned int                            i, size;
 413         unsigned char                           *attr_name;
 414
 415         if (!capable(CAP_SYS_ADMIN))
 416                 return -XFS_ERROR(EPERM);
 417         if (copy_from_user(&am_hreq, arg,
 418                            sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
 419                 return -XFS_ERROR(EFAULT);
 420
 421         /* overflow check */
 422         if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
 423                 return -E2BIG;
 424
 425         dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
 426         if (IS_ERR(dentry))
 427                 return PTR_ERR(dentry);
 428
 429         error = E2BIG;
 430         size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
 431         if (!size || size > 16 * PAGE_SIZE)
 432                 goto out_dput;
 433
 434         ops = memdup_user(compat_ptr(am_hreq.ops), size);
 435         if (IS_ERR(ops)) {
 436                 error = PTR_ERR(ops);
 437                 goto out_dput;
 438         }
 439
 440         attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
 441         if (!attr_name)
 442                 goto out_kfree_ops;
 443
 444         error = 0;
 445         for (i = 0; i < am_hreq.opcount; i++) {
 446                 ops[i].am_error = strncpy_from_user((char *)attr_name,
 447                                 compat_ptr(ops[i].am_attrname),
 448                                 MAXNAMELEN);
 449                 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
 450                         error = -ERANGE;
 451                 if (ops[i].am_error < 0)
 452                         break;
 453
 454                 switch (ops[i].am_opcode) {
 455                 case ATTR_OP_GET:
 456                         ops[i].am_error = xfs_attrmulti_attr_get(
 457                                         dentry->d_inode, attr_name,
 458                                         compat_ptr(ops[i].am_attrvalue),
 459                                         &ops[i].am_length, ops[i].am_flags);
 460                         break;
 461                 case ATTR_OP_SET:
 462                         ops[i].am_error = mnt_want_write_file(parfilp);
 463                         if (ops[i].am_error)
 464                                 break;
 465                         ops[i].am_error = xfs_attrmulti_attr_set(
 466                                         dentry->d_inode, attr_name,
 467                                         compat_ptr(ops[i].am_attrvalue),
 468                                         ops[i].am_length, ops[i].am_flags);
 469                         mnt_drop_write_file(parfilp);
 470                         break;
 471                 case ATTR_OP_REMOVE:
 472                         ops[i].am_error = mnt_want_write_file(parfilp);
 473                         if (ops[i].am_error)
 474                                 break;
 475                         ops[i].am_error = xfs_attrmulti_attr_remove(
 476                                         dentry->d_inode, attr_name,
 477                                         ops[i].am_flags);
 478                         mnt_drop_write_file(parfilp);
 479                         break;
 480                 default:
 481                         ops[i].am_error = EINVAL;
 482                 }
 483         }
 484
 485         if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 486                 error = XFS_ERROR(EFAULT);
 487
 488         kfree(attr_name);
 489  out_kfree_ops:
 490         kfree(ops);
 491  out_dput:
 492         dput(dentry);
 493         return -error;
 494 }
 495
 496 STATIC int
 497 xfs_compat_fssetdm_by_handle(
 498         struct file             *parfilp,
 499         void                    __user *arg)
 500 {
 501         int                     error;
 502         struct fsdmidata        fsd;
 503         compat_xfs_fsop_setdm_handlereq_t dmhreq;
 504         struct dentry           *dentry;
 505
 506         if (!capable(CAP_MKNOD))
 507                 return -XFS_ERROR(EPERM);
 508         if (copy_from_user(&dmhreq, arg,
 509                            sizeof(compat_xfs_fsop_setdm_handlereq_t)))
 510                 return -XFS_ERROR(EFAULT);
 511
 512         dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
 513         if (IS_ERR(dentry))
 514                 return PTR_ERR(dentry);
 515
 516         if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
 517                 error = -XFS_ERROR(EPERM);
 518                 goto out;
 519         }
 520
 521         if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
 522                 error = -XFS_ERROR(EFAULT);
 523                 goto out;
 524         }
 525
 526         error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
 527                                  fsd.fsd_dmstate);
 528
 529 out:
 530         dput(dentry);
 531         return error;
 532 }
 533
 534 long
 535 xfs_file_compat_ioctl(
 536         struct file             *filp,
 537         unsigned                cmd,
 538         unsigned long           p)
 539 {
 540         struct inode            *inode = file_inode(filp);
 541         struct xfs_inode        *ip = XFS_I(inode);
 542         struct xfs_mount        *mp = ip->i_mount;
 543         void                    __user *arg = (void __user *)p;
 544         int                     ioflags = 0;
 545         int                     error;
 546
 547         if (filp->f_mode & FMODE_NOCMTIME)
 548                 ioflags |= IO_INVIS;
 549
 550         trace_xfs_file_compat_ioctl(ip);
 551
 552         switch (cmd) {
 553         /* No size or alignment issues on any arch */
 554         case XFS_IOC_DIOINFO:
 555         case XFS_IOC_FSGEOMETRY:
 556         case XFS_IOC_FSGETXATTR:
 557         case XFS_IOC_FSSETXATTR:
 558         case XFS_IOC_FSGETXATTRA:
 559         case XFS_IOC_FSSETDM:
 560         case XFS_IOC_GETBMAP:
 561         case XFS_IOC_GETBMAPA:
 562         case XFS_IOC_GETBMAPX:
 563         case XFS_IOC_FSCOUNTS:
 564         case XFS_IOC_SET_RESBLKS:
 565         case XFS_IOC_GET_RESBLKS:
 566         case XFS_IOC_FSGROWFSLOG:
 567         case XFS_IOC_GOINGDOWN:
 568         case XFS_IOC_ERROR_INJECTION:
 569         case XFS_IOC_ERROR_CLEARALL:
 570                 return xfs_file_ioctl(filp, cmd, p);
 571 #ifndef BROKEN_X86_ALIGNMENT
 572         /* These are handled fine if no alignment issues */
 573         case XFS_IOC_ALLOCSP:
 574         case XFS_IOC_FREESP:
 575         case XFS_IOC_RESVSP:
 576         case XFS_IOC_UNRESVSP:
 577         case XFS_IOC_ALLOCSP64:
 578         case XFS_IOC_FREESP64:
 579         case XFS_IOC_RESVSP64:
 580         case XFS_IOC_UNRESVSP64:
 581         case XFS_IOC_FSGEOMETRY_V1:
 582         case XFS_IOC_FSGROWFSDATA:
 583         case XFS_IOC_FSGROWFSRT:
 584         case XFS_IOC_ZERO_RANGE:
 585                 return xfs_file_ioctl(filp, cmd, p);
 586 #else
 587         case XFS_IOC_ALLOCSP_32:
 588         case XFS_IOC_FREESP_32:
 589         case XFS_IOC_ALLOCSP64_32:
 590         case XFS_IOC_FREESP64_32:
 591         case XFS_IOC_RESVSP_32:
 592         case XFS_IOC_UNRESVSP_32:
 593         case XFS_IOC_RESVSP64_32:
 594         case XFS_IOC_UNRESVSP64_32:
 595         case XFS_IOC_ZERO_RANGE_32: {
 596                 struct xfs_flock64      bf;
 597
 598                 if (xfs_compat_flock64_copyin(&bf, arg))
 599                         return -XFS_ERROR(EFAULT);
 600                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 601                 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
 602         }
 603         case XFS_IOC_FSGEOMETRY_V1_32:
 604                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 605         case XFS_IOC_FSGROWFSDATA_32: {
 606                 struct xfs_growfs_data  in;
 607
 608                 if (xfs_compat_growfs_data_copyin(&in, arg))
 609                         return -XFS_ERROR(EFAULT);
 610                 error = mnt_want_write_file(filp);
 611                 if (error)
 612                         return error;
 613                 error = xfs_growfs_data(mp, &in);
 614                 mnt_drop_write_file(filp);
 615                 return -error;
 616         }
 617         case XFS_IOC_FSGROWFSRT_32: {
 618                 struct xfs_growfs_rt    in;
 619
 620                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 621                         return -XFS_ERROR(EFAULT);
 622                 error = mnt_want_write_file(filp);
 623                 if (error)
 624                         return error;
 625                 error = xfs_growfs_rt(mp, &in);
 626                 mnt_drop_write_file(filp);
 627                 return -error;
 628         }
 629 #endif
 630         /* long changes size, but xfs only copiese out 32 bits */
 631         case XFS_IOC_GETXFLAGS_32:
 632         case XFS_IOC_SETXFLAGS_32:
 633         case XFS_IOC_GETVERSION_32:
 634                 cmd = _NATIVE_IOC(cmd, long);
 635                 return xfs_file_ioctl(filp, cmd, p);
 636         case XFS_IOC_SWAPEXT_32: {
 637                 struct xfs_swapext        sxp;
 638                 struct compat_xfs_swapext __user *sxu = arg;
 639
 640                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 641                 if (copy_from_user(&sxp, sxu,
 642                                    offsetof(struct xfs_swapext, sx_stat)) ||
 643                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 644                         return -XFS_ERROR(EFAULT);
 645                 error = mnt_want_write_file(filp);
 646                 if (error)
 647                         return error;
 648                 error = xfs_swapext(&sxp);
 649                 mnt_drop_write_file(filp);
 650                 return -error;
 651         }
 652         case XFS_IOC_FSBULKSTAT_32:
 653         case XFS_IOC_FSBULKSTAT_SINGLE_32:
 654         case XFS_IOC_FSINUMBERS_32:
 655                 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
 656         case XFS_IOC_FD_TO_HANDLE_32:
 657         case XFS_IOC_PATH_TO_HANDLE_32:
 658         case XFS_IOC_PATH_TO_FSHANDLE_32: {
 659                 struct xfs_fsop_handlereq       hreq;
 660
 661                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 662                         return -XFS_ERROR(EFAULT);
 663                 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
 664                 return xfs_find_handle(cmd, &hreq);
 665         }
 666         case XFS_IOC_OPEN_BY_HANDLE_32: {
 667                 struct xfs_fsop_handlereq       hreq;
 668
 669                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 670                         return -XFS_ERROR(EFAULT);
 671                 return xfs_open_by_handle(filp, &hreq);
 672         }
 673         case XFS_IOC_READLINK_BY_HANDLE_32: {
 674                 struct xfs_fsop_handlereq       hreq;
 675
 676                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 677                         return -XFS_ERROR(EFAULT);
 678                 return xfs_readlink_by_handle(filp, &hreq);
 679         }
 680         case XFS_IOC_ATTRLIST_BY_HANDLE_32:
 681                 return xfs_compat_attrlist_by_handle(filp, arg);
 682         case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 683                 return xfs_compat_attrmulti_by_handle(filp, arg);
 684         case XFS_IOC_FSSETDM_BY_HANDLE_32:
 685                 return xfs_compat_fssetdm_by_handle(filp, arg);
 686         default:
 687                 return -XFS_ERROR(ENOIOCTLCMD);
 688         }
 689 }