fs/xfs/xfs_ioctl32.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2004-2005 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6 #include <linux/compat.h>
   7 #include <linux/ioctl.h>
   8 #include <linux/mount.h>
   9 #include <linux/slab.h>
  10 #include <linux/uaccess.h>
  11 #include <linux/fsmap.h>
  12 #include "xfs.h"
  13 #include "xfs_fs.h"
  14 #include "xfs_format.h"
  15 #include "xfs_log_format.h"
  16 #include "xfs_trans_resv.h"
  17 #include "xfs_mount.h"
  18 #include "xfs_inode.h"
  19 #include "xfs_itable.h"
  20 #include "xfs_error.h"
  21 #include "xfs_fsops.h"
  22 #include "xfs_alloc.h"
  23 #include "xfs_rtalloc.h"
  24 #include "xfs_attr.h"
  25 #include "xfs_ioctl.h"
  26 #include "xfs_ioctl32.h"
  27 #include "xfs_trace.h"
  28 #include "xfs_sb.h"
  29
  30 #define  _NATIVE_IOC(cmd, type) \
  31           _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
  32
  33 #ifdef BROKEN_X86_ALIGNMENT
  34 STATIC int
  35 xfs_compat_flock64_copyin(
  36         xfs_flock64_t           *bf,
  37         compat_xfs_flock64_t    __user *arg32)
  38 {
  39         if (get_user(bf->l_type,        &arg32->l_type) ||
  40             get_user(bf->l_whence,      &arg32->l_whence) ||
  41             get_user(bf->l_start,       &arg32->l_start) ||
  42             get_user(bf->l_len,         &arg32->l_len) ||
  43             get_user(bf->l_sysid,       &arg32->l_sysid) ||
  44             get_user(bf->l_pid,         &arg32->l_pid) ||
  45             copy_from_user(bf->l_pad,   &arg32->l_pad,  4*sizeof(u32)))
  46                 return -EFAULT;
  47         return 0;
  48 }
  49
  50 STATIC int
  51 xfs_compat_ioc_fsgeometry_v1(
  52         struct xfs_mount          *mp,
  53         compat_xfs_fsop_geom_v1_t __user *arg32)
  54 {
  55         struct xfs_fsop_geom      fsgeo;
  56
  57         xfs_fs_geometry(&mp->m_sb, &fsgeo, 3);
  58         /* The 32-bit variant simply has some padding at the end */
  59         if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
  60                 return -EFAULT;
  61         return 0;
  62 }
  63
  64 STATIC int
  65 xfs_compat_growfs_data_copyin(
  66         struct xfs_growfs_data   *in,
  67         compat_xfs_growfs_data_t __user *arg32)
  68 {
  69         if (get_user(in->newblocks, &arg32->newblocks) ||
  70             get_user(in->imaxpct,   &arg32->imaxpct))
  71                 return -EFAULT;
  72         return 0;
  73 }
  74
  75 STATIC int
  76 xfs_compat_growfs_rt_copyin(
  77         struct xfs_growfs_rt     *in,
  78         compat_xfs_growfs_rt_t  __user *arg32)
  79 {
  80         if (get_user(in->newblocks, &arg32->newblocks) ||
  81             get_user(in->extsize,   &arg32->extsize))
  82                 return -EFAULT;
  83         return 0;
  84 }
  85
  86 STATIC int
  87 xfs_inumbers_fmt_compat(
  88         void                    __user *ubuffer,
  89         const struct xfs_inogrp *buffer,
  90         long                    count,
  91         long                    *written)
  92 {
  93         compat_xfs_inogrp_t     __user *p32 = ubuffer;
  94         long                    i;
  95
  96         for (i = 0; i < count; i++) {
  97                 if (put_user(buffer[i].xi_startino,   &p32[i].xi_startino) ||
  98                     put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
  99                     put_user(buffer[i].xi_allocmask,  &p32[i].xi_allocmask))
 100                         return -EFAULT;
 101         }
 102         *written = count * sizeof(*p32);
 103         return 0;
 104 }
 105
 106 #else
 107 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
 108 #endif  /* BROKEN_X86_ALIGNMENT */
 109
 110 STATIC int
 111 xfs_ioctl32_bstime_copyin(
 112         xfs_bstime_t            *bstime,
 113         compat_xfs_bstime_t     __user *bstime32)
 114 {
 115         compat_time_t           sec32;  /* tv_sec differs on 64 vs. 32 */
 116
 117         if (get_user(sec32,             &bstime32->tv_sec)      ||
 118             get_user(bstime->tv_nsec,   &bstime32->tv_nsec))
 119                 return -EFAULT;
 120         bstime->tv_sec = sec32;
 121         return 0;
 122 }
 123
 124 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
 125 STATIC int
 126 xfs_ioctl32_bstat_copyin(
 127         xfs_bstat_t             *bstat,
 128         compat_xfs_bstat_t      __user *bstat32)
 129 {
 130         if (get_user(bstat->bs_ino,     &bstat32->bs_ino)       ||
 131             get_user(bstat->bs_mode,    &bstat32->bs_mode)      ||
 132             get_user(bstat->bs_nlink,   &bstat32->bs_nlink)     ||
 133             get_user(bstat->bs_uid,     &bstat32->bs_uid)       ||
 134             get_user(bstat->bs_gid,     &bstat32->bs_gid)       ||
 135             get_user(bstat->bs_rdev,    &bstat32->bs_rdev)      ||
 136             get_user(bstat->bs_blksize, &bstat32->bs_blksize)   ||
 137             get_user(bstat->bs_size,    &bstat32->bs_size)      ||
 138             xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
 139             xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
 140             xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
 141             get_user(bstat->bs_blocks,  &bstat32->bs_size)      ||
 142             get_user(bstat->bs_xflags,  &bstat32->bs_size)      ||
 143             get_user(bstat->bs_extsize, &bstat32->bs_extsize)   ||
 144             get_user(bstat->bs_extents, &bstat32->bs_extents)   ||
 145             get_user(bstat->bs_gen,     &bstat32->bs_gen)       ||
 146             get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
 147             get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
 148             get_user(bstat->bs_forkoff, &bstat32->bs_forkoff)   ||
 149             get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
 150             get_user(bstat->bs_dmstate, &bstat32->bs_dmstate)   ||
 151             get_user(bstat->bs_aextents, &bstat32->bs_aextents))
 152                 return -EFAULT;
 153         return 0;
 154 }
 155
 156 /* XFS_IOC_FSBULKSTAT and friends */
 157
 158 STATIC int
 159 xfs_bstime_store_compat(
 160         compat_xfs_bstime_t     __user *p32,
 161         const xfs_bstime_t      *p)
 162 {
 163         __s32                   sec32;
 164
 165         sec32 = p->tv_sec;
 166         if (put_user(sec32, &p32->tv_sec) ||
 167             put_user(p->tv_nsec, &p32->tv_nsec))
 168                 return -EFAULT;
 169         return 0;
 170 }
 171
 172 /* Return 0 on success or positive error (to xfs_bulkstat()) */
 173 STATIC int
 174 xfs_bulkstat_one_fmt_compat(
 175         void                    __user *ubuffer,
 176         int                     ubsize,
 177         int                     *ubused,
 178         const xfs_bstat_t       *buffer)
 179 {
 180         compat_xfs_bstat_t      __user *p32 = ubuffer;
 181
 182         if (ubsize < sizeof(*p32))
 183                 return -ENOMEM;
 184
 185         if (put_user(buffer->bs_ino,      &p32->bs_ino)         ||
 186             put_user(buffer->bs_mode,     &p32->bs_mode)        ||
 187             put_user(buffer->bs_nlink,    &p32->bs_nlink)       ||
 188             put_user(buffer->bs_uid,      &p32->bs_uid)         ||
 189             put_user(buffer->bs_gid,      &p32->bs_gid)         ||
 190             put_user(buffer->bs_rdev,     &p32->bs_rdev)        ||
 191             put_user(buffer->bs_blksize,  &p32->bs_blksize)     ||
 192             put_user(buffer->bs_size,     &p32->bs_size)        ||
 193             xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
 194             xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
 195             xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
 196             put_user(buffer->bs_blocks,   &p32->bs_blocks)      ||
 197             put_user(buffer->bs_xflags,   &p32->bs_xflags)      ||
 198             put_user(buffer->bs_extsize,  &p32->bs_extsize)     ||
 199             put_user(buffer->bs_extents,  &p32->bs_extents)     ||
 200             put_user(buffer->bs_gen,      &p32->bs_gen)         ||
 201             put_user(buffer->bs_projid,   &p32->bs_projid)      ||
 202             put_user(buffer->bs_projid_hi,      &p32->bs_projid_hi)     ||
 203             put_user(buffer->bs_forkoff,  &p32->bs_forkoff)     ||
 204             put_user(buffer->bs_dmevmask, &p32->bs_dmevmask)    ||
 205             put_user(buffer->bs_dmstate,  &p32->bs_dmstate)     ||
 206             put_user(buffer->bs_aextents, &p32->bs_aextents))
 207                 return -EFAULT;
 208         if (ubused)
 209                 *ubused = sizeof(*p32);
 210         return 0;
 211 }
 212
 213 STATIC int
 214 xfs_bulkstat_one_compat(
 215         xfs_mount_t     *mp,            /* mount point for filesystem */
 216         xfs_ino_t       ino,            /* inode number to get data for */
 217         void            __user *buffer, /* buffer to place output in */
 218         int             ubsize,         /* size of buffer */
 219         int             *ubused,        /* bytes used by me */
 220         int             *stat)          /* BULKSTAT_RV_... */
 221 {
 222         return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 223                                     xfs_bulkstat_one_fmt_compat,
 224                                     ubused, stat);
 225 }
 226
 227 /* copied from xfs_ioctl.c */
 228 STATIC int
 229 xfs_compat_ioc_bulkstat(
 230         xfs_mount_t               *mp,
 231         unsigned int              cmd,
 232         compat_xfs_fsop_bulkreq_t __user *p32)
 233 {
 234         u32                     addr;
 235         xfs_fsop_bulkreq_t      bulkreq;
 236         int                     count;  /* # of records returned */
 237         xfs_ino_t               inlast; /* last inode number */
 238         int                     done;
 239         int                     error;
 240
 241         /*
 242          * Output structure handling functions.  Depending on the command,
 243          * either the xfs_bstat and xfs_inogrp structures are written out
 244          * to userpace memory via bulkreq.ubuffer.  Normally the compat
 245          * functions and structure size are the correct ones to use ...
 246          */
 247         inumbers_fmt_pf inumbers_func = xfs_inumbers_fmt_compat;
 248         bulkstat_one_pf bs_one_func = xfs_bulkstat_one_compat;
 249         size_t bs_one_size = sizeof(struct compat_xfs_bstat);
 250
 251 #ifdef CONFIG_X86_X32
 252         if (in_x32_syscall()) {
 253                 /*
 254                  * ... but on x32 the input xfs_fsop_bulkreq has pointers
 255                  * which must be handled in the "compat" (32-bit) way, while
 256                  * the xfs_bstat and xfs_inogrp structures follow native 64-
 257                  * bit layout convention.  So adjust accordingly, otherwise
 258                  * the data written out in compat layout will not match what
 259                  * x32 userspace expects.
 260                  */
 261                 inumbers_func = xfs_inumbers_fmt;
 262                 bs_one_func = xfs_bulkstat_one;
 263                 bs_one_size = sizeof(struct xfs_bstat);
 264         }
 265 #endif
 266
 267         /* done = 1 if there are more stats to get and if bulkstat */
 268         /* should be called again (unused here, but used in dmapi) */
 269
 270         if (!capable(CAP_SYS_ADMIN))
 271                 return -EPERM;
 272
 273         if (XFS_FORCED_SHUTDOWN(mp))
 274                 return -EIO;
 275
 276         if (get_user(addr, &p32->lastip))
 277                 return -EFAULT;
 278         bulkreq.lastip = compat_ptr(addr);
 279         if (get_user(bulkreq.icount, &p32->icount) ||
 280             get_user(addr, &p32->ubuffer))
 281                 return -EFAULT;
 282         bulkreq.ubuffer = compat_ptr(addr);
 283         if (get_user(addr, &p32->ocount))
 284                 return -EFAULT;
 285         bulkreq.ocount = compat_ptr(addr);
 286
 287         if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
 288                 return -EFAULT;
 289
 290         if ((count = bulkreq.icount) <= 0)
 291                 return -EINVAL;
 292
 293         if (bulkreq.ubuffer == NULL)
 294                 return -EINVAL;
 295
 296         if (cmd == XFS_IOC_FSINUMBERS_32) {
 297                 error = xfs_inumbers(mp, &inlast, &count,
 298                                 bulkreq.ubuffer, inumbers_func);
 299         } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
 300                 int res;
 301
 302                 error = bs_one_func(mp, inlast, bulkreq.ubuffer,
 303                                 bs_one_size, NULL, &res);
 304         } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 305                 error = xfs_bulkstat(mp, &inlast, &count,
 306                         bs_one_func, bs_one_size,
 307                         bulkreq.ubuffer, &done);
 308         } else
 309                 error = -EINVAL;
 310         if (error)
 311                 return error;
 312
 313         if (bulkreq.ocount != NULL) {
 314                 if (copy_to_user(bulkreq.lastip, &inlast,
 315                                                 sizeof(xfs_ino_t)))
 316                         return -EFAULT;
 317
 318                 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
 319                         return -EFAULT;
 320         }
 321
 322         return 0;
 323 }
 324
 325 STATIC int
 326 xfs_compat_handlereq_copyin(
 327         xfs_fsop_handlereq_t            *hreq,
 328         compat_xfs_fsop_handlereq_t     __user *arg32)
 329 {
 330         compat_xfs_fsop_handlereq_t     hreq32;
 331
 332         if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
 333                 return -EFAULT;
 334
 335         hreq->fd = hreq32.fd;
 336         hreq->path = compat_ptr(hreq32.path);
 337         hreq->oflags = hreq32.oflags;
 338         hreq->ihandle = compat_ptr(hreq32.ihandle);
 339         hreq->ihandlen = hreq32.ihandlen;
 340         hreq->ohandle = compat_ptr(hreq32.ohandle);
 341         hreq->ohandlen = compat_ptr(hreq32.ohandlen);
 342
 343         return 0;
 344 }
 345
 346 STATIC struct dentry *
 347 xfs_compat_handlereq_to_dentry(
 348         struct file             *parfilp,
 349         compat_xfs_fsop_handlereq_t *hreq)
 350 {
 351         return xfs_handle_to_dentry(parfilp,
 352                         compat_ptr(hreq->ihandle), hreq->ihandlen);
 353 }
 354
 355 STATIC int
 356 xfs_compat_attrlist_by_handle(
 357         struct file             *parfilp,
 358         void                    __user *arg)
 359 {
 360         int                     error;
 361         attrlist_cursor_kern_t  *cursor;
 362         compat_xfs_fsop_attrlist_handlereq_t __user *p = arg;
 363         compat_xfs_fsop_attrlist_handlereq_t al_hreq;
 364         struct dentry           *dentry;
 365         char                    *kbuf;
 366
 367         if (!capable(CAP_SYS_ADMIN))
 368                 return -EPERM;
 369         if (copy_from_user(&al_hreq, arg,
 370                            sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
 371                 return -EFAULT;
 372         if (al_hreq.buflen < sizeof(struct attrlist) ||
 373             al_hreq.buflen > XFS_XATTR_LIST_MAX)
 374                 return -EINVAL;
 375
 376         /*
 377          * Reject flags, only allow namespaces.
 378          */
 379         if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
 380                 return -EINVAL;
 381
 382         dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
 383         if (IS_ERR(dentry))
 384                 return PTR_ERR(dentry);
 385
 386         error = -ENOMEM;
 387         kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
 388         if (!kbuf)
 389                 goto out_dput;
 390
 391         cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
 392         error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen,
 393                                         al_hreq.flags, cursor);
 394         if (error)
 395                 goto out_kfree;
 396
 397         if (copy_to_user(&p->pos, cursor, sizeof(attrlist_cursor_kern_t))) {
 398                 error = -EFAULT;
 399                 goto out_kfree;
 400         }
 401
 402         if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
 403                 error = -EFAULT;
 404
 405 out_kfree:
 406         kmem_free(kbuf);
 407 out_dput:
 408         dput(dentry);
 409         return error;
 410 }
 411
 412 STATIC int
 413 xfs_compat_attrmulti_by_handle(
 414         struct file                             *parfilp,
 415         void                                    __user *arg)
 416 {
 417         int                                     error;
 418         compat_xfs_attr_multiop_t               *ops;
 419         compat_xfs_fsop_attrmulti_handlereq_t   am_hreq;
 420         struct dentry                           *dentry;
 421         unsigned int                            i, size;
 422         unsigned char                           *attr_name;
 423
 424         if (!capable(CAP_SYS_ADMIN))
 425                 return -EPERM;
 426         if (copy_from_user(&am_hreq, arg,
 427                            sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
 428                 return -EFAULT;
 429
 430         /* overflow check */
 431         if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
 432                 return -E2BIG;
 433
 434         dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
 435         if (IS_ERR(dentry))
 436                 return PTR_ERR(dentry);
 437
 438         error = -E2BIG;
 439         size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
 440         if (!size || size > 16 * PAGE_SIZE)
 441                 goto out_dput;
 442
 443         ops = memdup_user(compat_ptr(am_hreq.ops), size);
 444         if (IS_ERR(ops)) {
 445                 error = PTR_ERR(ops);
 446                 goto out_dput;
 447         }
 448
 449         error = -ENOMEM;
 450         attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
 451         if (!attr_name)
 452                 goto out_kfree_ops;
 453
 454         error = 0;
 455         for (i = 0; i < am_hreq.opcount; i++) {
 456                 ops[i].am_error = strncpy_from_user((char *)attr_name,
 457                                 compat_ptr(ops[i].am_attrname),
 458                                 MAXNAMELEN);
 459                 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
 460                         error = -ERANGE;
 461                 if (ops[i].am_error < 0)
 462                         break;
 463
 464                 switch (ops[i].am_opcode) {
 465                 case ATTR_OP_GET:
 466                         ops[i].am_error = xfs_attrmulti_attr_get(
 467                                         d_inode(dentry), attr_name,
 468                                         compat_ptr(ops[i].am_attrvalue),
 469                                         &ops[i].am_length, ops[i].am_flags);
 470                         break;
 471                 case ATTR_OP_SET:
 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_set(
 476                                         d_inode(dentry), attr_name,
 477                                         compat_ptr(ops[i].am_attrvalue),
 478                                         ops[i].am_length, ops[i].am_flags);
 479                         mnt_drop_write_file(parfilp);
 480                         break;
 481                 case ATTR_OP_REMOVE:
 482                         ops[i].am_error = mnt_want_write_file(parfilp);
 483                         if (ops[i].am_error)
 484                                 break;
 485                         ops[i].am_error = xfs_attrmulti_attr_remove(
 486                                         d_inode(dentry), attr_name,
 487                                         ops[i].am_flags);
 488                         mnt_drop_write_file(parfilp);
 489                         break;
 490                 default:
 491                         ops[i].am_error = -EINVAL;
 492                 }
 493         }
 494
 495         if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
 496                 error = -EFAULT;
 497
 498         kfree(attr_name);
 499  out_kfree_ops:
 500         kfree(ops);
 501  out_dput:
 502         dput(dentry);
 503         return error;
 504 }
 505
 506 STATIC int
 507 xfs_compat_fssetdm_by_handle(
 508         struct file             *parfilp,
 509         void                    __user *arg)
 510 {
 511         int                     error;
 512         struct fsdmidata        fsd;
 513         compat_xfs_fsop_setdm_handlereq_t dmhreq;
 514         struct dentry           *dentry;
 515
 516         if (!capable(CAP_MKNOD))
 517                 return -EPERM;
 518         if (copy_from_user(&dmhreq, arg,
 519                            sizeof(compat_xfs_fsop_setdm_handlereq_t)))
 520                 return -EFAULT;
 521
 522         dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
 523         if (IS_ERR(dentry))
 524                 return PTR_ERR(dentry);
 525
 526         if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
 527                 error = -EPERM;
 528                 goto out;
 529         }
 530
 531         if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
 532                 error = -EFAULT;
 533                 goto out;
 534         }
 535
 536         error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
 537                                  fsd.fsd_dmstate);
 538
 539 out:
 540         dput(dentry);
 541         return error;
 542 }
 543
 544 long
 545 xfs_file_compat_ioctl(
 546         struct file             *filp,
 547         unsigned                cmd,
 548         unsigned long           p)
 549 {
 550         struct inode            *inode = file_inode(filp);
 551         struct xfs_inode        *ip = XFS_I(inode);
 552         struct xfs_mount        *mp = ip->i_mount;
 553         void                    __user *arg = (void __user *)p;
 554         int                     error;
 555
 556         trace_xfs_file_compat_ioctl(ip);
 557
 558         switch (cmd) {
 559         /* No size or alignment issues on any arch */
 560         case XFS_IOC_DIOINFO:
 561         case XFS_IOC_FSGEOMETRY_V4:
 562         case XFS_IOC_FSGEOMETRY:
 563         case XFS_IOC_AG_GEOMETRY:
 564         case XFS_IOC_FSGETXATTR:
 565         case XFS_IOC_FSSETXATTR:
 566         case XFS_IOC_FSGETXATTRA:
 567         case XFS_IOC_FSSETDM:
 568         case XFS_IOC_GETBMAP:
 569         case XFS_IOC_GETBMAPA:
 570         case XFS_IOC_GETBMAPX:
 571         case XFS_IOC_FSCOUNTS:
 572         case XFS_IOC_SET_RESBLKS:
 573         case XFS_IOC_GET_RESBLKS:
 574         case XFS_IOC_FSGROWFSLOG:
 575         case XFS_IOC_GOINGDOWN:
 576         case XFS_IOC_ERROR_INJECTION:
 577         case XFS_IOC_ERROR_CLEARALL:
 578         case FS_IOC_GETFSMAP:
 579         case XFS_IOC_SCRUB_METADATA:
 580                 return xfs_file_ioctl(filp, cmd, p);
 581 #if !defined(BROKEN_X86_ALIGNMENT) || defined(CONFIG_X86_X32)
 582         /*
 583          * These are handled fine if no alignment issues.  To support x32
 584          * which uses native 64-bit alignment we must emit these cases in
 585          * addition to the ia-32 compat set below.
 586          */
 587         case XFS_IOC_ALLOCSP:
 588         case XFS_IOC_FREESP:
 589         case XFS_IOC_RESVSP:
 590         case XFS_IOC_UNRESVSP:
 591         case XFS_IOC_ALLOCSP64:
 592         case XFS_IOC_FREESP64:
 593         case XFS_IOC_RESVSP64:
 594         case XFS_IOC_UNRESVSP64:
 595         case XFS_IOC_FSGEOMETRY_V1:
 596         case XFS_IOC_FSGROWFSDATA:
 597         case XFS_IOC_FSGROWFSRT:
 598         case XFS_IOC_ZERO_RANGE:
 599 #ifdef CONFIG_X86_X32
 600         /*
 601          * x32 special: this gets a different cmd number from the ia-32 compat
 602          * case below; the associated data will match native 64-bit alignment.
 603          */
 604         case XFS_IOC_SWAPEXT:
 605 #endif
 606                 return xfs_file_ioctl(filp, cmd, p);
 607 #endif
 608 #if defined(BROKEN_X86_ALIGNMENT)
 609         case XFS_IOC_ALLOCSP_32:
 610         case XFS_IOC_FREESP_32:
 611         case XFS_IOC_ALLOCSP64_32:
 612         case XFS_IOC_FREESP64_32:
 613         case XFS_IOC_RESVSP_32:
 614         case XFS_IOC_UNRESVSP_32:
 615         case XFS_IOC_RESVSP64_32:
 616         case XFS_IOC_UNRESVSP64_32:
 617         case XFS_IOC_ZERO_RANGE_32: {
 618                 struct xfs_flock64      bf;
 619
 620                 if (xfs_compat_flock64_copyin(&bf, arg))
 621                         return -EFAULT;
 622                 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
 623                 return xfs_ioc_space(filp, cmd, &bf);
 624         }
 625         case XFS_IOC_FSGEOMETRY_V1_32:
 626                 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
 627         case XFS_IOC_FSGROWFSDATA_32: {
 628                 struct xfs_growfs_data  in;
 629
 630                 if (xfs_compat_growfs_data_copyin(&in, arg))
 631                         return -EFAULT;
 632                 error = mnt_want_write_file(filp);
 633                 if (error)
 634                         return error;
 635                 error = xfs_growfs_data(mp, &in);
 636                 mnt_drop_write_file(filp);
 637                 return error;
 638         }
 639         case XFS_IOC_FSGROWFSRT_32: {
 640                 struct xfs_growfs_rt    in;
 641
 642                 if (xfs_compat_growfs_rt_copyin(&in, arg))
 643                         return -EFAULT;
 644                 error = mnt_want_write_file(filp);
 645                 if (error)
 646                         return error;
 647                 error = xfs_growfs_rt(mp, &in);
 648                 mnt_drop_write_file(filp);
 649                 return error;
 650         }
 651 #endif
 652         /* long changes size, but xfs only copiese out 32 bits */
 653         case XFS_IOC_GETXFLAGS_32:
 654         case XFS_IOC_SETXFLAGS_32:
 655         case XFS_IOC_GETVERSION_32:
 656                 cmd = _NATIVE_IOC(cmd, long);
 657                 return xfs_file_ioctl(filp, cmd, p);
 658         case XFS_IOC_SWAPEXT_32: {
 659                 struct xfs_swapext        sxp;
 660                 struct compat_xfs_swapext __user *sxu = arg;
 661
 662                 /* Bulk copy in up to the sx_stat field, then copy bstat */
 663                 if (copy_from_user(&sxp, sxu,
 664                                    offsetof(struct xfs_swapext, sx_stat)) ||
 665                     xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
 666                         return -EFAULT;
 667                 error = mnt_want_write_file(filp);
 668                 if (error)
 669                         return error;
 670                 error = xfs_ioc_swapext(&sxp);
 671                 mnt_drop_write_file(filp);
 672                 return error;
 673         }
 674         case XFS_IOC_FSBULKSTAT_32:
 675         case XFS_IOC_FSBULKSTAT_SINGLE_32:
 676         case XFS_IOC_FSINUMBERS_32:
 677                 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
 678         case XFS_IOC_FD_TO_HANDLE_32:
 679         case XFS_IOC_PATH_TO_HANDLE_32:
 680         case XFS_IOC_PATH_TO_FSHANDLE_32: {
 681                 struct xfs_fsop_handlereq       hreq;
 682
 683                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 684                         return -EFAULT;
 685                 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
 686                 return xfs_find_handle(cmd, &hreq);
 687         }
 688         case XFS_IOC_OPEN_BY_HANDLE_32: {
 689                 struct xfs_fsop_handlereq       hreq;
 690
 691                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 692                         return -EFAULT;
 693                 return xfs_open_by_handle(filp, &hreq);
 694         }
 695         case XFS_IOC_READLINK_BY_HANDLE_32: {
 696                 struct xfs_fsop_handlereq       hreq;
 697
 698                 if (xfs_compat_handlereq_copyin(&hreq, arg))
 699                         return -EFAULT;
 700                 return xfs_readlink_by_handle(filp, &hreq);
 701         }
 702         case XFS_IOC_ATTRLIST_BY_HANDLE_32:
 703                 return xfs_compat_attrlist_by_handle(filp, arg);
 704         case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
 705                 return xfs_compat_attrmulti_by_handle(filp, arg);
 706         case XFS_IOC_FSSETDM_BY_HANDLE_32:
 707                 return xfs_compat_fssetdm_by_handle(filp, arg);
 708         default:
 709                 return -ENOIOCTLCMD;
 710         }
 711 }