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 <asm/uaccess.h>
  22 #include "xfs.h"
  23 #include "xfs_fs.h"
  24 #include "xfs_bit.h"
  25 #include "xfs_log.h"
  26 #include "xfs_inum.h"
  27 #include "xfs_trans.h"
  28 #include "xfs_sb.h"
  29 #include "xfs_ag.h"
  30 #include "xfs_dir2.h"
  31 #include "xfs_dmapi.h"
  32 #include "xfs_mount.h"
  33 #include "xfs_bmap_btree.h"
  34 #include "xfs_attr_sf.h"
  35 #include "xfs_dir2_sf.h"
  36 #include "xfs_vnode.h"
  37 #include "xfs_dinode.h"
  38 #include "xfs_inode.h"
  39 #include "xfs_itable.h"
  40 #include "xfs_error.h"
  41 #include "xfs_dfrag.h"
  42 #include "xfs_vnodeops.h"
  43 #include "xfs_fsops.h"
  44 #include "xfs_alloc.h"
  45 #include "xfs_rtalloc.h"
  46 #include "xfs_attr.h"
  47 #include "xfs_ioctl.h"
  48 #include "xfs_ioctl32.h"
  49
  50 #define  _NATIVE_IOC(cmd, type) \
  51           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  52
  53 #ifdef BROKEN_X86_ALIGNMENT
  54 STATIC int
  55 xfs_compat_flock64_copyin(
  56         xfs_flock64_t           *bf,
  57         compat_xfs_flock64_t    __user *arg32)
  58 {
  59         if (get_user(bf->l_type,        &arg32->l_type) ||
  60             get_user(bf->l_whence,      &arg32->l_whence) ||
  61             get_user(bf->l_start,       &arg32->l_start) ||
  62             get_user(bf->l_len,         &arg32->l_len) ||
  63             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  64             get_user(bf->l_pid,         &arg32->l_pid) ||
  65             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  66                 return -XFS_ERROR(EFAULT);
  67         return 0;
  68 }
  69
  70 STATIC int
  71 xfs_compat_ioc_fsgeometry_v1(
  72         struct xfs_mount          *mp,
  73         compat_xfs_fsop_geom_v1_t __user *arg32)
  74 {
  75         xfs_fsop_geom_t           fsgeo;
  76         int                       error;
  77
  78         error = xfs_fs_geometry(mp, &fsgeo, 3);
  79         if (error)
  80                 return -error;
  81         /* The 32-bit variant simply has some padding at the end */
  82         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  83                 return -XFS_ERROR(EFAULT);
  84         return 0;
  85 }
  86
  87 STATIC int
  88 xfs_compat_growfs_data_copyin(
  89         struct xfs_growfs_data   *in,
  90         compat_xfs_growfs_data_t __user *arg32)
  91 {
  92         if (get_user(in->newblocks, &arg32->newblocks) ||
  93             get_user(in->imaxpct,   &arg32->imaxpct))
  94                 return -XFS_ERROR(EFAULT);
  95         return 0;
  96 }
  97
  98 STATIC int
  99 xfs_compat_growfs_rt_copyin(
 100         struct xfs_growfs_rt     *in,
 101         compat_xfs_growfs_rt_t  __user *arg32)
 102 {
 103         if (get_user(in->newblocks, &arg32->newblocks) ||
 104             get_user(in->extsize,   &arg32->extsize))
 105                 return -XFS_ERROR(EFAULT);
 106         return 0;
 107 }
 108
 109 STATIC int
 110 xfs_inumbers_fmt_compat(
 111         void                    __user *ubuffer,
 112         const xfs_inogrp_t      *buffer,
 113         long                    count,
 114         long                    *written)
 115 {
 116         compat_xfs_inogrp_t     __user *p32 = ubuffer;
 117         long                    i;
 118
 119         for (i = 0; i < count; i++) {
 120                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
 121                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
 122                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 123                         return -XFS_ERROR(EFAULT);
 124         }
 125         *written = count * sizeof(*p32);
 126         return 0;
 127 }
 128
 129 #else
 130 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 131 #endif  /* BROKEN_X86_ALIGNMENT */
 132
 133 STATIC int
 134 xfs_ioctl32_bstime_copyin(
 135         xfs_bstime_t            *bstime,
 136         compat_xfs_bstime_t     __user *bstime32)
 137 {
 138         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 139
 140         if (get_user(sec32,             &bstime32->tv_sec)      ||
 141             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 142                 return -XFS_ERROR(EFAULT);
 143         bstime->tv_sec = sec32;
 144         return 0;
 145 }
 146
 147 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 148 STATIC int
 149 xfs_ioctl32_bstat_copyin(
 150         xfs_bstat_t             *bstat,
 151         compat_xfs_bstat_t      __user *bstat32)
 152 {
 153         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 154             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 155             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 156             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 157             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 158             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 159             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 160             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 161             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 162             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 163             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 164             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 165             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 166             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 167             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 168             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 169             get_user(bstat->bs_projid,  &bstat32->bs_projid)    ||
 170             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 171             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 172             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 173                 return -XFS_ERROR(EFAULT);
 174         return 0;
 175 }
 176
 177 /* XFS_IOC_FSBULKSTAT and friends */
 178
 179 STATIC int
 180 xfs_bstime_store_compat(
 181         compat_xfs_bstime_t     __user *p32,
 182         const xfs_bstime_t      *p)
 183 {
 184         __s32                   sec32;
 185
 186         sec32 = p->tv_sec;
 187         if (put_user(sec32, &p32->tv_sec) ||
 188             put_user(p->tv_nsec, &p32->tv_nsec))
 189                 return -XFS_ERROR(EFAULT);
 190         return 0;
 191 }
 192
 193 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 194 STATIC int
 195 xfs_bulkstat_one_fmt_compat(
 196         void                    __user *ubuffer,
 197         int                     ubsize,
 198         int                     *ubused,
 199         const xfs_bstat_t       *buffer)
 200 {
 201         compat_xfs_bstat_t      __user *p32 = ubuffer;
 202
 203         if (ubsize < sizeof(*p32))
 204                 return XFS_ERROR(ENOMEM);
 205
 206         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 207             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 208             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 209             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 210             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 211             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 212             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 213             put_user(buffer->bs_size,     &p32->bs_size)        ||
 214             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 215             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 216             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 217             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 218             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 219             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 220             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 221             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 222             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 223             put_user(buffer->bs_dmevmask, &p32->bs_dmevmask)    ||
 224             put_user(buffer->bs_dmstate,  &p32->bs_dmstate)     ||
 225             put_user(buffer->bs_aextents, &p32->bs_aextents))
 226                 return XFS_ERROR(EFAULT);
 227         if (ubused)
 228                 *ubused = sizeof(*p32);
 229         return 0;
 230 }
 231
 232 STATIC int
 233 xfs_bulkstat_one_compat(
 234         xfs_mount_t     *mp,            /* mount point for filesystem */
 235         xfs_ino_t       ino,            /* inode number to get data for */
 236         void            __user *buffer, /* buffer to place output in */
 237         int             ubsize,         /* size of buffer */
 238         void            *private_data,  /* my private data */
 239         xfs_daddr_t     bno,            /* starting bno of inode cluster */
 240         int             *ubused,        /* bytes used by me */
 241         void            *dibuff,        /* on-disk inode buffer */
 242         int             *stat)          /* BULKSTAT_RV_... */
 243 {
 244         return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 245                                     xfs_bulkstat_one_fmt_compat, bno,
 246                                     ubused, dibuff, stat);
 247 }
 248
 249 /* copied from xfs_ioctl.c */
 250 STATIC int
 251 xfs_compat_ioc_bulkstat(
 252         xfs_mount_t               *mp,
 253         unsigned int              cmd,
 254         compat_xfs_fsop_bulkreq_t __user *p32)
 255 {
 256         u32                     addr;
 257         xfs_fsop_bulkreq_t      bulkreq;
 258         int                     count;  /* # of records returned */
 259         xfs_ino_t               inlast; /* last inode number */
 260         int                     done;
 261         int                     error;
 262
 263         /* done = 1 if there are more stats to get and if bulkstat */
 264         /* should be called again (unused here, but used in dmapi) */
 265
 266         if (!capable(CAP_SYS_ADMIN))
 267                 return -XFS_ERROR(EPERM);
 268
 269         if (XFS_FORCED_SHUTDOWN(mp))
 270                 return -XFS_ERROR(EIO);
 271
 272         if (get_user(addr, &p32->lastip))
 273                 return -XFS_ERROR(EFAULT);
 274         bulkreq.lastip = compat_ptr(addr);
 275         if (get_user(bulkreq.icount, &p32->icount) ||
 276             get_user(addr, &p32->ubuffer))
 277                 return -XFS_ERROR(EFAULT);
 278         bulkreq.ubuffer = compat_ptr(addr);
 279         if (get_user(addr, &p32->ocount))
 280                 return -XFS_ERROR(EFAULT);
 281         bulkreq.ocount = compat_ptr(addr);
 282
 283         if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
 284                 return -XFS_ERROR(EFAULT);
 285
 286         if ((count = bulkreq.icount) <= 0)
 287                 return -XFS_ERROR(EINVAL);
 288
 289         if (bulkreq.ubuffer == NULL)
 290                 return -XFS_ERROR(EINVAL);
 291
 292         if (cmd == XFS_IOC_FSINUMBERS_32) {
 293                 error = xfs_inumbers(mp, &inlast, &count,
 294                                 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
 295         } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
 296                 int res;
 297
 298                 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
 299                                 sizeof(compat_xfs_bstat_t),
 300                                 NULL, 0, NULL, NULL, &res);
 301         } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 302                 error = xfs_bulkstat(mp, &inlast, &count,
 303                         xfs_bulkstat_one_compat, NULL,
 304                         sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
 305                         BULKSTAT_FG_QUICK, &done);
 306         } else
 307                 error = XFS_ERROR(EINVAL);
 308         if (error)
 309                 return -error;
 310
 311         if (bulkreq.ocount != NULL) {
 312                 if (copy_to_user(bulkreq.lastip, &inlast,
 313                                                 sizeof(xfs_ino_t)))
 314                         return -XFS_ERROR(EFAULT);
 315
 316                 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
 317                         return -XFS_ERROR(EFAULT);
 318         }
 319
 320         return 0;
 321 }
 322
 323 STATIC int
 324 xfs_compat_handlereq_copyin(
 325         xfs_fsop_handlereq_t            *hreq,
 326         compat_xfs_fsop_handlereq_t     __user *arg32)
 327 {
 328         compat_xfs_fsop_handlereq_t     hreq32;
 329
 330         if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
 331                 return -XFS_ERROR(EFAULT);
 332
 333         hreq->fd = hreq32.fd;
 334         hreq->path = compat_ptr(hreq32.path);
 335         hreq->oflags = hreq32.oflags;
 336         hreq->ihandle = compat_ptr(hreq32.ihandle);
 337         hreq->ihandlen = hreq32.ihandlen;
 338         hreq->ohandle = compat_ptr(hreq32.ohandle);
 339         hreq->ohandlen = compat_ptr(hreq32.ohandlen);
 340
 341         return 0;
 342 }
 343
 344 STATIC struct dentry *
 345 xfs_compat_handlereq_to_dentry(
 346         struct file             *parfilp,
 347         compat_xfs_fsop_handlereq_t *hreq)
 348 {
 349         return xfs_handle_to_dentry(parfilp,
 350                         compat_ptr(hreq->ihandle), hreq->ihandlen);
 351 }
 352
 353 STATIC int
 354 xfs_compat_attrlist_by_handle(
 355         struct file             *parfilp,
 356         void                    __user *arg)
 357 {
 358         int                     error;
 359         attrlist_cursor_kern_t  *cursor;
 360         compat_xfs_fsop_attrlist_handlereq_t al_hreq;
 361         struct dentry           *dentry;
 362         char                    *kbuf;
 363
 364         if (!capable(CAP_SYS_ADMIN))
 365                 return -XFS_ERROR(EPERM);
 366         if (copy_from_user(&al_hreq, arg,
 367                            sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
 368                 return -XFS_ERROR(EFAULT);
 369         if (al_hreq.buflen > XATTR_LIST_MAX)
 370                 return -XFS_ERROR(EINVAL);
 371
 372         /*
 373          * Reject flags, only allow namespaces.
 374          */
 375         if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
 376                 return -XFS_ERROR(EINVAL);
 377
 378         dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 379         if (IS_ERR(dentry))
 380                 return PTR_ERR(dentry);
 381
 382         error = -ENOMEM;
 383         kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
 384         if (!kbuf)
 385                 goto out_dput;
 386
 387         cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
 388         error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
 389                                         al_hreq.flags, cursor);
 390         if (error)
 391                 goto out_kfree;
 392
 393         if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
 394                 error = -EFAULT;
 395
 396  out_kfree:
 397         kfree(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         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         dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
 422         if (IS_ERR(dentry))
 423                 return PTR_ERR(dentry);
 424
 425         error = E2BIG;
 426         size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
 427         if (!size || size > 16 * PAGE_SIZE)
 428                 goto out_dput;
 429
 430         ops = memdup_user(compat_ptr(am_hreq.ops), size);
 431         if (IS_ERR(ops)) {
 432                 error = PTR_ERR(ops);
 433                 goto out_dput;
 434         }
 435
 436         attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
 437         if (!attr_name)
 438                 goto out_kfree_ops;
 439
 440         error = 0;
 441         for (i = 0; i < am_hreq.opcount; i++) {
 442                 ops[i].am_error = strncpy_from_user(attr_name,
 443                                 compat_ptr(ops[i].am_attrname),
 444                                 MAXNAMELEN);
 445                 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
 446                         error = -ERANGE;
 447                 if (ops[i].am_error < 0)
 448                         break;
 449
 450                 switch (ops[i].am_opcode) {
 451                 case ATTR_OP_GET:
 452                         ops[i].am_error = xfs_attrmulti_attr_get(
 453                                         dentry->d_inode, attr_name,
 454                                         compat_ptr(ops[i].am_attrvalue),
 455                                         &ops[i].am_length, ops[i].am_flags);
 456                         break;
 457                 case ATTR_OP_SET:
 458                         ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
 459                         if (ops[i].am_error)
 460                                 break;
 461                         ops[i].am_error = xfs_attrmulti_attr_set(
 462                                         dentry->d_inode, attr_name,
 463                                         compat_ptr(ops[i].am_attrvalue),
 464                                         ops[i].am_length, ops[i].am_flags);
 465                         mnt_drop_write(parfilp->f_path.mnt);
 466                         break;
 467                 case ATTR_OP_REMOVE:
 468                         ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
 469                         if (ops[i].am_error)
 470                                 break;
 471                         ops[i].am_error = xfs_attrmulti_attr_remove(
 472                                         dentry->d_inode, attr_name,
 473                                         ops[i].am_flags);
 474                         mnt_drop_write(parfilp->f_path.mnt);
 475                         break;
 476                 default:
 477                         ops[i].am_error = EINVAL;
 478                 }
 479         }
 480
 481         if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 482                 error = XFS_ERROR(EFAULT);
 483
 484         kfree(attr_name);
 485  out_kfree_ops:
 486         kfree(ops);
 487  out_dput:
 488         dput(dentry);
 489         return -error;
 490 }
 491
 492 STATIC int
 493 xfs_compat_fssetdm_by_handle(
 494         struct file             *parfilp,
 495         void                    __user *arg)
 496 {
 497         int                     error;
 498         struct fsdmidata        fsd;
 499         compat_xfs_fsop_setdm_handlereq_t dmhreq;
 500         struct dentry           *dentry;
 501
 502         if (!capable(CAP_MKNOD))
 503                 return -XFS_ERROR(EPERM);
 504         if (copy_from_user(&dmhreq, arg,
 505                            sizeof(compat_xfs_fsop_setdm_handlereq_t)))
 506                 return -XFS_ERROR(EFAULT);
 507
 508         dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
 509         if (IS_ERR(dentry))
 510                 return PTR_ERR(dentry);
 511
 512         if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
 513                 error = -XFS_ERROR(EPERM);
 514                 goto out;
 515         }
 516
 517         if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
 518                 error = -XFS_ERROR(EFAULT);
 519                 goto out;
 520         }
 521
 522         error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
 523                                  fsd.fsd_dmstate);
 524
 525 out:
 526         dput(dentry);
 527         return error;
 528 }
 529
 530 long
 531 xfs_file_compat_ioctl(
 532         struct file             *filp,
 533         unsigned                cmd,
 534         unsigned long           p)
 535 {
 536         struct inode            *inode = filp->f_path.dentry->d_inode;
 537         struct xfs_inode        *ip = XFS_I(inode);
 538         struct xfs_mount        *mp = ip->i_mount;
 539         void                    __user *arg = (void __user *)p;
 540         int                     ioflags = 0;
 541         int                     error;
 542
 543         if (filp->f_mode & FMODE_NOCMTIME)
 544                 ioflags |= IO_INVIS;
 545
 546         xfs_itrace_entry(ip);
 547
 548         switch (cmd) {
 549         /* No size or alignment issues on any arch */
 550         case XFS_IOC_DIOINFO:
 551         case XFS_IOC_FSGEOMETRY:
 552         case XFS_IOC_FSGETXATTR:
 553         case XFS_IOC_FSSETXATTR:
 554         case XFS_IOC_FSGETXATTRA:
 555         case XFS_IOC_FSSETDM:
 556         case XFS_IOC_GETBMAP:
 557         case XFS_IOC_GETBMAPA:
 558         case XFS_IOC_GETBMAPX:
 559         case XFS_IOC_FSCOUNTS:
 560         case XFS_IOC_SET_RESBLKS:
 561         case XFS_IOC_GET_RESBLKS:
 562         case XFS_IOC_FSGROWFSLOG:
 563         case XFS_IOC_GOINGDOWN:
 564         case XFS_IOC_ERROR_INJECTION:
 565         case XFS_IOC_ERROR_CLEARALL:
 566                 return xfs_file_ioctl(filp, cmd, p);
 567 #ifndef BROKEN_X86_ALIGNMENT
 568         /* These are handled fine if no alignment issues */
 569         case XFS_IOC_ALLOCSP:
 570         case XFS_IOC_FREESP:
 571         case XFS_IOC_RESVSP:
 572         case XFS_IOC_UNRESVSP:
 573         case XFS_IOC_ALLOCSP64:
 574         case XFS_IOC_FREESP64:
 575         case XFS_IOC_RESVSP64:
 576         case XFS_IOC_UNRESVSP64:
 577         case XFS_IOC_FSGEOMETRY_V1:
 578         case XFS_IOC_FSGROWFSDATA:
 579         case XFS_IOC_FSGROWFSRT:
 580                 return xfs_file_ioctl(filp, cmd, p);
 581 #else
 582         case XFS_IOC_ALLOCSP_32:
 583         case XFS_IOC_FREESP_32:
 584         case XFS_IOC_ALLOCSP64_32:
 585         case XFS_IOC_FREESP64_32:
 586         case XFS_IOC_RESVSP_32:
 587         case XFS_IOC_UNRESVSP_32:
 588         case XFS_IOC_RESVSP64_32:
 589         case XFS_IOC_UNRESVSP64_32: {
 590                 struct xfs_flock64      bf;
 591
 592                 if (xfs_compat_flock64_copyin(&bf, arg))
 593                         return -XFS_ERROR(EFAULT);
 594                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 595                 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
 596         }
 597         case XFS_IOC_FSGEOMETRY_V1_32:
 598                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 599         case XFS_IOC_FSGROWFSDATA_32: {
 600                 struct xfs_growfs_data  in;
 601
 602                 if (xfs_compat_growfs_data_copyin(&in, arg))
 603                         return -XFS_ERROR(EFAULT);
 604                 error = xfs_growfs_data(mp, &in);
 605                 return -error;
 606         }
 607         case XFS_IOC_FSGROWFSRT_32: {
 608                 struct xfs_growfs_rt    in;
 609
 610                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 611                         return -XFS_ERROR(EFAULT);
 612                 error = xfs_growfs_rt(mp, &in);
 613                 return -error;
 614         }
 615 #endif
 616         /* long changes size, but xfs only copiese out 32 bits */
 617         case XFS_IOC_GETXFLAGS_32:
 618         case XFS_IOC_SETXFLAGS_32:
 619         case XFS_IOC_GETVERSION_32:
 620                 cmd = _NATIVE_IOC(cmd, long);
 621                 return xfs_file_ioctl(filp, cmd, p);
 622         case XFS_IOC_SWAPEXT_32: {
 623                 struct xfs_swapext        sxp;
 624                 struct compat_xfs_swapext __user *sxu = arg;
 625
 626                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 627                 if (copy_from_user(&sxp, sxu,
 628                                    offsetof(struct xfs_swapext, sx_stat)) ||
 629                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 630                         return -XFS_ERROR(EFAULT);
 631                 error = xfs_swapext(&sxp);
 632                 return -error;
 633         }
 634         case XFS_IOC_FSBULKSTAT_32:
 635         case XFS_IOC_FSBULKSTAT_SINGLE_32:
 636         case XFS_IOC_FSINUMBERS_32:
 637                 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
 638         case XFS_IOC_FD_TO_HANDLE_32:
 639         case XFS_IOC_PATH_TO_HANDLE_32:
 640         case XFS_IOC_PATH_TO_FSHANDLE_32: {
 641                 struct xfs_fsop_handlereq       hreq;
 642
 643                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 644                         return -XFS_ERROR(EFAULT);
 645                 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
 646                 return xfs_find_handle(cmd, &hreq);
 647         }
 648         case XFS_IOC_OPEN_BY_HANDLE_32: {
 649                 struct xfs_fsop_handlereq       hreq;
 650
 651                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 652                         return -XFS_ERROR(EFAULT);
 653                 return xfs_open_by_handle(filp, &hreq);
 654         }
 655         case XFS_IOC_READLINK_BY_HANDLE_32: {
 656                 struct xfs_fsop_handlereq       hreq;
 657
 658                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 659                         return -XFS_ERROR(EFAULT);
 660                 return xfs_readlink_by_handle(filp, &hreq);
 661         }
 662         case XFS_IOC_ATTRLIST_BY_HANDLE_32:
 663                 return xfs_compat_attrlist_by_handle(filp, arg);
 664         case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 665                 return xfs_compat_attrmulti_by_handle(filp, arg);
 666         case XFS_IOC_FSSETDM_BY_HANDLE_32:
 667                 return xfs_compat_fssetdm_by_handle(filp, arg);
 668         default:
 669                 return -XFS_ERROR(ENOIOCTLCMD);
 670         }
 671 }