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