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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_format.h"
26#include "xfs_log_format.h"
27#include "xfs_trans_resv.h"
28#include "xfs_sb.h"
29#include "xfs_ag.h"
30#include "xfs_mount.h"
31#include "xfs_vnode.h"
32#include "xfs_inode.h"
33#include "xfs_itable.h"
34#include "xfs_error.h"
35#include "xfs_fsops.h"
36#include "xfs_alloc.h"
37#include "xfs_rtalloc.h"
38#include "xfs_attr.h"
39#include "xfs_ioctl.h"
40#include "xfs_ioctl32.h"
41#include "xfs_trace.h"
42
43#define _NATIVE_IOC(cmd, type) \
44 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
45
46#ifdef BROKEN_X86_ALIGNMENT
47STATIC int
48xfs_compat_flock64_copyin(
49 xfs_flock64_t *bf,
50 compat_xfs_flock64_t __user *arg32)
51{
52 if (get_user(bf->l_type, &arg32->l_type) ||
53 get_user(bf->l_whence, &arg32->l_whence) ||
54 get_user(bf->l_start, &arg32->l_start) ||
55 get_user(bf->l_len, &arg32->l_len) ||
56 get_user(bf->l_sysid, &arg32->l_sysid) ||
57 get_user(bf->l_pid, &arg32->l_pid) ||
58 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
59 return -XFS_ERROR(EFAULT);
60 return 0;
61}
62
63STATIC int
64xfs_compat_ioc_fsgeometry_v1(
65 struct xfs_mount *mp,
66 compat_xfs_fsop_geom_v1_t __user *arg32)
67{
68 xfs_fsop_geom_t fsgeo;
69 int error;
70
71 error = xfs_fs_geometry(mp, &fsgeo, 3);
72 if (error)
73 return -error;
74 /* The 32-bit variant simply has some padding at the end */
75 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
76 return -XFS_ERROR(EFAULT);
77 return 0;
78}
79
80STATIC int
81xfs_compat_growfs_data_copyin(
82 struct xfs_growfs_data *in,
83 compat_xfs_growfs_data_t __user *arg32)
84{
85 if (get_user(in->newblocks, &arg32->newblocks) ||
86 get_user(in->imaxpct, &arg32->imaxpct))
87 return -XFS_ERROR(EFAULT);
88 return 0;
89}
90
91STATIC int
92xfs_compat_growfs_rt_copyin(
93 struct xfs_growfs_rt *in,
94 compat_xfs_growfs_rt_t __user *arg32)
95{
96 if (get_user(in->newblocks, &arg32->newblocks) ||
97 get_user(in->extsize, &arg32->extsize))
98 return -XFS_ERROR(EFAULT);
99 return 0;
100}
101
102STATIC int
103xfs_inumbers_fmt_compat(
104 void __user *ubuffer,
105 const xfs_inogrp_t *buffer,
106 long count,
107 long *written)
108{
109 compat_xfs_inogrp_t __user *p32 = ubuffer;
110 long i;
111
112 for (i = 0; i < count; i++) {
113 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
114 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
115 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
116 return -XFS_ERROR(EFAULT);
117 }
118 *written = count * sizeof(*p32);
119 return 0;
120}
121
122#else
123#define xfs_inumbers_fmt_compat xfs_inumbers_fmt
124#endif /* BROKEN_X86_ALIGNMENT */
125
126STATIC int
127xfs_ioctl32_bstime_copyin(
128 xfs_bstime_t *bstime,
129 compat_xfs_bstime_t __user *bstime32)
130{
131 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
132
133 if (get_user(sec32, &bstime32->tv_sec) ||
134 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
135 return -XFS_ERROR(EFAULT);
136 bstime->tv_sec = sec32;
137 return 0;
138}
139
140/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
141STATIC int
142xfs_ioctl32_bstat_copyin(
143 xfs_bstat_t *bstat,
144 compat_xfs_bstat_t __user *bstat32)
145{
146 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
147 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
148 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
149 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
150 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
151 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
152 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
153 get_user(bstat->bs_size, &bstat32->bs_size) ||
154 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
155 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
156 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
157 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
158 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
159 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
160 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
161 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
162 get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
163 get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
164 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
165 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
166 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
167 return -XFS_ERROR(EFAULT);
168 return 0;
169}
170
171/* XFS_IOC_FSBULKSTAT and friends */
172
173STATIC int
174xfs_bstime_store_compat(
175 compat_xfs_bstime_t __user *p32,
176 const xfs_bstime_t *p)
177{
178 __s32 sec32;
179
180 sec32 = p->tv_sec;
181 if (put_user(sec32, &p32->tv_sec) ||
182 put_user(p->tv_nsec, &p32->tv_nsec))
183 return -XFS_ERROR(EFAULT);
184 return 0;
185}
186
187/* Return 0 on success or positive error (to xfs_bulkstat()) */
188STATIC int
189xfs_bulkstat_one_fmt_compat(
190 void __user *ubuffer,
191 int ubsize,
192 int *ubused,
193 const xfs_bstat_t *buffer)
194{
195 compat_xfs_bstat_t __user *p32 = ubuffer;
196
197 if (ubsize < sizeof(*p32))
198 return XFS_ERROR(ENOMEM);
199
200 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
201 put_user(buffer->bs_mode, &p32->bs_mode) ||
202 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
203 put_user(buffer->bs_uid, &p32->bs_uid) ||
204 put_user(buffer->bs_gid, &p32->bs_gid) ||
205 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
206 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
207 put_user(buffer->bs_size, &p32->bs_size) ||
208 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
209 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
210 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
211 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
212 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
213 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
214 put_user(buffer->bs_extents, &p32->bs_extents) ||
215 put_user(buffer->bs_gen, &p32->bs_gen) ||
216 put_user(buffer->bs_projid, &p32->bs_projid) ||
217 put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) ||
218 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
219 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
220 put_user(buffer->bs_aextents, &p32->bs_aextents))
221 return XFS_ERROR(EFAULT);
222 if (ubused)
223 *ubused = sizeof(*p32);
224 return 0;
225}
226
227STATIC int
228xfs_bulkstat_one_compat(
229 xfs_mount_t *mp, /* mount point for filesystem */
230 xfs_ino_t ino, /* inode number to get data for */
231 void __user *buffer, /* buffer to place output in */
232 int ubsize, /* size of buffer */
233 int *ubused, /* bytes used by me */
234 int *stat) /* BULKSTAT_RV_... */
235{
236 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
237 xfs_bulkstat_one_fmt_compat,
238 ubused, stat);
239}
240
241/* copied from xfs_ioctl.c */
242STATIC int
243xfs_compat_ioc_bulkstat(
244 xfs_mount_t *mp,
245 unsigned int cmd,
246 compat_xfs_fsop_bulkreq_t __user *p32)
247{
248 u32 addr;
249 xfs_fsop_bulkreq_t bulkreq;
250 int count; /* # of records returned */
251 xfs_ino_t inlast; /* last inode number */
252 int done;
253 int error;
254
255 /* done = 1 if there are more stats to get and if bulkstat */
256 /* should be called again (unused here, but used in dmapi) */
257
258 if (!capable(CAP_SYS_ADMIN))
259 return -XFS_ERROR(EPERM);
260
261 if (XFS_FORCED_SHUTDOWN(mp))
262 return -XFS_ERROR(EIO);
263
264 if (get_user(addr, &p32->lastip))
265 return -XFS_ERROR(EFAULT);
266 bulkreq.lastip = compat_ptr(addr);
267 if (get_user(bulkreq.icount, &p32->icount) ||
268 get_user(addr, &p32->ubuffer))
269 return -XFS_ERROR(EFAULT);
270 bulkreq.ubuffer = compat_ptr(addr);
271 if (get_user(addr, &p32->ocount))
272 return -XFS_ERROR(EFAULT);
273 bulkreq.ocount = compat_ptr(addr);
274
275 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
276 return -XFS_ERROR(EFAULT);
277
278 if ((count = bulkreq.icount) <= 0)
279 return -XFS_ERROR(EINVAL);
280
281 if (bulkreq.ubuffer == NULL)
282 return -XFS_ERROR(EINVAL);
283
284 if (cmd == XFS_IOC_FSINUMBERS_32) {
285 error = xfs_inumbers(mp, &inlast, &count,
286 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
287 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
288 int res;
289
290 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
291 sizeof(compat_xfs_bstat_t), NULL, &res);
292 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
293 error = xfs_bulkstat(mp, &inlast, &count,
294 xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
295 bulkreq.ubuffer, &done);
296 } else
297 error = XFS_ERROR(EINVAL);
298 if (error)
299 return -error;
300
301 if (bulkreq.ocount != NULL) {
302 if (copy_to_user(bulkreq.lastip, &inlast,
303 sizeof(xfs_ino_t)))
304 return -XFS_ERROR(EFAULT);
305
306 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
307 return -XFS_ERROR(EFAULT);
308 }
309
310 return 0;
311}
312
313STATIC int
314xfs_compat_handlereq_copyin(
315 xfs_fsop_handlereq_t *hreq,
316 compat_xfs_fsop_handlereq_t __user *arg32)
317{
318 compat_xfs_fsop_handlereq_t hreq32;
319
320 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
321 return -XFS_ERROR(EFAULT);
322
323 hreq->fd = hreq32.fd;
324 hreq->path = compat_ptr(hreq32.path);
325 hreq->oflags = hreq32.oflags;
326 hreq->ihandle = compat_ptr(hreq32.ihandle);
327 hreq->ihandlen = hreq32.ihandlen;
328 hreq->ohandle = compat_ptr(hreq32.ohandle);
329 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
330
331 return 0;
332}
333
334STATIC struct dentry *
335xfs_compat_handlereq_to_dentry(
336 struct file *parfilp,
337 compat_xfs_fsop_handlereq_t *hreq)
338{
339 return xfs_handle_to_dentry(parfilp,
340 compat_ptr(hreq->ihandle), hreq->ihandlen);
341}
342
343STATIC int
344xfs_compat_attrlist_by_handle(
345 struct file *parfilp,
346 void __user *arg)
347{
348 int error;
349 attrlist_cursor_kern_t *cursor;
350 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
351 struct dentry *dentry;
352 char *kbuf;
353
354 if (!capable(CAP_SYS_ADMIN))
355 return -XFS_ERROR(EPERM);
356 if (copy_from_user(&al_hreq, arg,
357 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
358 return -XFS_ERROR(EFAULT);
359 if (al_hreq.buflen < sizeof(struct attrlist) ||
360 al_hreq.buflen > XATTR_LIST_MAX)
361 return -XFS_ERROR(EINVAL);
362
363 /*
364 * Reject flags, only allow namespaces.
365 */
366 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
367 return -XFS_ERROR(EINVAL);
368
369 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
370 if (IS_ERR(dentry))
371 return PTR_ERR(dentry);
372
373 error = -ENOMEM;
374 kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
375 if (!kbuf)
376 goto out_dput;
377
378 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
379 error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
380 al_hreq.flags, cursor);
381 if (error)
382 goto out_kfree;
383
384 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
385 error = -EFAULT;
386
387out_kfree:
388 kmem_free(kbuf);
389out_dput:
390 dput(dentry);
391 return error;
392}
393
394STATIC int
395xfs_compat_attrmulti_by_handle(
396 struct file *parfilp,
397 void __user *arg)
398{
399 int error;
400 compat_xfs_attr_multiop_t *ops;
401 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
402 struct dentry *dentry;
403 unsigned int i, size;
404 unsigned char *attr_name;
405
406 if (!capable(CAP_SYS_ADMIN))
407 return -XFS_ERROR(EPERM);
408 if (copy_from_user(&am_hreq, arg,
409 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
410 return -XFS_ERROR(EFAULT);
411
412 /* overflow check */
413 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
414 return -E2BIG;
415
416 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
417 if (IS_ERR(dentry))
418 return PTR_ERR(dentry);
419
420 error = E2BIG;
421 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
422 if (!size || size > 16 * PAGE_SIZE)
423 goto out_dput;
424
425 ops = memdup_user(compat_ptr(am_hreq.ops), size);
426 if (IS_ERR(ops)) {
427 error = PTR_ERR(ops);
428 goto out_dput;
429 }
430
431 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
432 if (!attr_name)
433 goto out_kfree_ops;
434
435 error = 0;
436 for (i = 0; i < am_hreq.opcount; i++) {
437 ops[i].am_error = strncpy_from_user((char *)attr_name,
438 compat_ptr(ops[i].am_attrname),
439 MAXNAMELEN);
440 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
441 error = -ERANGE;
442 if (ops[i].am_error < 0)
443 break;
444
445 switch (ops[i].am_opcode) {
446 case ATTR_OP_GET:
447 ops[i].am_error = xfs_attrmulti_attr_get(
448 dentry->d_inode, attr_name,
449 compat_ptr(ops[i].am_attrvalue),
450 &ops[i].am_length, ops[i].am_flags);
451 break;
452 case ATTR_OP_SET:
453 ops[i].am_error = mnt_want_write_file(parfilp);
454 if (ops[i].am_error)
455 break;
456 ops[i].am_error = xfs_attrmulti_attr_set(
457 dentry->d_inode, attr_name,
458 compat_ptr(ops[i].am_attrvalue),
459 ops[i].am_length, ops[i].am_flags);
460 mnt_drop_write_file(parfilp);
461 break;
462 case ATTR_OP_REMOVE:
463 ops[i].am_error = mnt_want_write_file(parfilp);
464 if (ops[i].am_error)
465 break;
466 ops[i].am_error = xfs_attrmulti_attr_remove(
467 dentry->d_inode, attr_name,
468 ops[i].am_flags);
469 mnt_drop_write_file(parfilp);
470 break;
471 default:
472 ops[i].am_error = EINVAL;
473 }
474 }
475
476 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
477 error = XFS_ERROR(EFAULT);
478
479 kfree(attr_name);
480 out_kfree_ops:
481 kfree(ops);
482 out_dput:
483 dput(dentry);
484 return -error;
485}
486
487STATIC int
488xfs_compat_fssetdm_by_handle(
489 struct file *parfilp,
490 void __user *arg)
491{
492 int error;
493 struct fsdmidata fsd;
494 compat_xfs_fsop_setdm_handlereq_t dmhreq;
495 struct dentry *dentry;
496
497 if (!capable(CAP_MKNOD))
498 return -XFS_ERROR(EPERM);
499 if (copy_from_user(&dmhreq, arg,
500 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
501 return -XFS_ERROR(EFAULT);
502
503 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
504 if (IS_ERR(dentry))
505 return PTR_ERR(dentry);
506
507 if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
508 error = -XFS_ERROR(EPERM);
509 goto out;
510 }
511
512 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
513 error = -XFS_ERROR(EFAULT);
514 goto out;
515 }
516
517 error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
518 fsd.fsd_dmstate);
519
520out:
521 dput(dentry);
522 return error;
523}
524
525long
526xfs_file_compat_ioctl(
527 struct file *filp,
528 unsigned cmd,
529 unsigned long p)
530{
531 struct inode *inode = file_inode(filp);
532 struct xfs_inode *ip = XFS_I(inode);
533 struct xfs_mount *mp = ip->i_mount;
534 void __user *arg = (void __user *)p;
535 int ioflags = 0;
536 int error;
537
538 if (filp->f_mode & FMODE_NOCMTIME)
539 ioflags |= IO_INVIS;
540
541 trace_xfs_file_compat_ioctl(ip);
542
543 switch (cmd) {
544 /* No size or alignment issues on any arch */
545 case XFS_IOC_DIOINFO:
546 case XFS_IOC_FSGEOMETRY:
547 case XFS_IOC_FSGETXATTR:
548 case XFS_IOC_FSSETXATTR:
549 case XFS_IOC_FSGETXATTRA:
550 case XFS_IOC_FSSETDM:
551 case XFS_IOC_GETBMAP:
552 case XFS_IOC_GETBMAPA:
553 case XFS_IOC_GETBMAPX:
554 case XFS_IOC_FSCOUNTS:
555 case XFS_IOC_SET_RESBLKS:
556 case XFS_IOC_GET_RESBLKS:
557 case XFS_IOC_FSGROWFSLOG:
558 case XFS_IOC_GOINGDOWN:
559 case XFS_IOC_ERROR_INJECTION:
560 case XFS_IOC_ERROR_CLEARALL:
561 return xfs_file_ioctl(filp, cmd, p);
562#ifndef BROKEN_X86_ALIGNMENT
563 /* These are handled fine if no alignment issues */
564 case XFS_IOC_ALLOCSP:
565 case XFS_IOC_FREESP:
566 case XFS_IOC_RESVSP:
567 case XFS_IOC_UNRESVSP:
568 case XFS_IOC_ALLOCSP64:
569 case XFS_IOC_FREESP64:
570 case XFS_IOC_RESVSP64:
571 case XFS_IOC_UNRESVSP64:
572 case XFS_IOC_FSGEOMETRY_V1:
573 case XFS_IOC_FSGROWFSDATA:
574 case XFS_IOC_FSGROWFSRT:
575 case XFS_IOC_ZERO_RANGE:
576 return xfs_file_ioctl(filp, cmd, p);
577#else
578 case XFS_IOC_ALLOCSP_32:
579 case XFS_IOC_FREESP_32:
580 case XFS_IOC_ALLOCSP64_32:
581 case XFS_IOC_FREESP64_32:
582 case XFS_IOC_RESVSP_32:
583 case XFS_IOC_UNRESVSP_32:
584 case XFS_IOC_RESVSP64_32:
585 case XFS_IOC_UNRESVSP64_32:
586 case XFS_IOC_ZERO_RANGE_32: {
587 struct xfs_flock64 bf;
588
589 if (xfs_compat_flock64_copyin(&bf, arg))
590 return -XFS_ERROR(EFAULT);
591 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
592 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
593 }
594 case XFS_IOC_FSGEOMETRY_V1_32:
595 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
596 case XFS_IOC_FSGROWFSDATA_32: {
597 struct xfs_growfs_data in;
598
599 if (xfs_compat_growfs_data_copyin(&in, arg))
600 return -XFS_ERROR(EFAULT);
601 error = mnt_want_write_file(filp);
602 if (error)
603 return error;
604 error = xfs_growfs_data(mp, &in);
605 mnt_drop_write_file(filp);
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 = mnt_want_write_file(filp);
614 if (error)
615 return error;
616 error = xfs_growfs_rt(mp, &in);
617 mnt_drop_write_file(filp);
618 return -error;
619 }
620#endif
621 /* long changes size, but xfs only copiese out 32 bits */
622 case XFS_IOC_GETXFLAGS_32:
623 case XFS_IOC_SETXFLAGS_32:
624 case XFS_IOC_GETVERSION_32:
625 cmd = _NATIVE_IOC(cmd, long);
626 return xfs_file_ioctl(filp, cmd, p);
627 case XFS_IOC_SWAPEXT_32: {
628 struct xfs_swapext sxp;
629 struct compat_xfs_swapext __user *sxu = arg;
630
631 /* Bulk copy in up to the sx_stat field, then copy bstat */
632 if (copy_from_user(&sxp, sxu,
633 offsetof(struct xfs_swapext, sx_stat)) ||
634 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
635 return -XFS_ERROR(EFAULT);
636 error = mnt_want_write_file(filp);
637 if (error)
638 return error;
639 error = xfs_ioc_swapext(&sxp);
640 mnt_drop_write_file(filp);
641 return -error;
642 }
643 case XFS_IOC_FSBULKSTAT_32:
644 case XFS_IOC_FSBULKSTAT_SINGLE_32:
645 case XFS_IOC_FSINUMBERS_32:
646 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
647 case XFS_IOC_FD_TO_HANDLE_32:
648 case XFS_IOC_PATH_TO_HANDLE_32:
649 case XFS_IOC_PATH_TO_FSHANDLE_32: {
650 struct xfs_fsop_handlereq hreq;
651
652 if (xfs_compat_handlereq_copyin(&hreq, arg))
653 return -XFS_ERROR(EFAULT);
654 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
655 return xfs_find_handle(cmd, &hreq);
656 }
657 case XFS_IOC_OPEN_BY_HANDLE_32: {
658 struct xfs_fsop_handlereq hreq;
659
660 if (xfs_compat_handlereq_copyin(&hreq, arg))
661 return -XFS_ERROR(EFAULT);
662 return xfs_open_by_handle(filp, &hreq);
663 }
664 case XFS_IOC_READLINK_BY_HANDLE_32: {
665 struct xfs_fsop_handlereq hreq;
666
667 if (xfs_compat_handlereq_copyin(&hreq, arg))
668 return -XFS_ERROR(EFAULT);
669 return xfs_readlink_by_handle(filp, &hreq);
670 }
671 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
672 return xfs_compat_attrlist_by_handle(filp, arg);
673 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
674 return xfs_compat_attrmulti_by_handle(filp, arg);
675 case XFS_IOC_FSSETDM_BY_HANDLE_32:
676 return xfs_compat_fssetdm_by_handle(filp, arg);
677 default:
678 return -XFS_ERROR(ENOIOCTLCMD);
679 }
680}
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#include <linux/mount.h>
7#include <linux/fsmap.h>
8#include "xfs.h"
9#include "xfs_fs.h"
10#include "xfs_shared.h"
11#include "xfs_format.h"
12#include "xfs_log_format.h"
13#include "xfs_trans_resv.h"
14#include "xfs_mount.h"
15#include "xfs_inode.h"
16#include "xfs_iwalk.h"
17#include "xfs_itable.h"
18#include "xfs_fsops.h"
19#include "xfs_rtalloc.h"
20#include "xfs_da_format.h"
21#include "xfs_da_btree.h"
22#include "xfs_attr.h"
23#include "xfs_ioctl.h"
24#include "xfs_ioctl32.h"
25#include "xfs_trace.h"
26#include "xfs_sb.h"
27#include "xfs_handle.h"
28
29#define _NATIVE_IOC(cmd, type) \
30 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
31
32#ifdef BROKEN_X86_ALIGNMENT
33STATIC int
34xfs_compat_ioc_fsgeometry_v1(
35 struct xfs_mount *mp,
36 compat_xfs_fsop_geom_v1_t __user *arg32)
37{
38 struct xfs_fsop_geom fsgeo;
39
40 xfs_fs_geometry(mp, &fsgeo, 3);
41 /* The 32-bit variant simply has some padding at the end */
42 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
43 return -EFAULT;
44 return 0;
45}
46
47STATIC int
48xfs_compat_growfs_data_copyin(
49 struct xfs_growfs_data *in,
50 compat_xfs_growfs_data_t __user *arg32)
51{
52 if (get_user(in->newblocks, &arg32->newblocks) ||
53 get_user(in->imaxpct, &arg32->imaxpct))
54 return -EFAULT;
55 return 0;
56}
57
58STATIC int
59xfs_compat_growfs_rt_copyin(
60 struct xfs_growfs_rt *in,
61 compat_xfs_growfs_rt_t __user *arg32)
62{
63 if (get_user(in->newblocks, &arg32->newblocks) ||
64 get_user(in->extsize, &arg32->extsize))
65 return -EFAULT;
66 return 0;
67}
68
69STATIC int
70xfs_fsinumbers_fmt_compat(
71 struct xfs_ibulk *breq,
72 const struct xfs_inumbers *ig)
73{
74 struct compat_xfs_inogrp __user *p32 = breq->ubuffer;
75 struct xfs_inogrp ig1;
76 struct xfs_inogrp *igrp = &ig1;
77
78 xfs_inumbers_to_inogrp(&ig1, ig);
79
80 if (put_user(igrp->xi_startino, &p32->xi_startino) ||
81 put_user(igrp->xi_alloccount, &p32->xi_alloccount) ||
82 put_user(igrp->xi_allocmask, &p32->xi_allocmask))
83 return -EFAULT;
84
85 return xfs_ibulk_advance(breq, sizeof(struct compat_xfs_inogrp));
86}
87
88#else
89#define xfs_fsinumbers_fmt_compat xfs_fsinumbers_fmt
90#endif /* BROKEN_X86_ALIGNMENT */
91
92STATIC int
93xfs_ioctl32_bstime_copyin(
94 xfs_bstime_t *bstime,
95 compat_xfs_bstime_t __user *bstime32)
96{
97 old_time32_t sec32; /* tv_sec differs on 64 vs. 32 */
98
99 if (get_user(sec32, &bstime32->tv_sec) ||
100 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
101 return -EFAULT;
102 bstime->tv_sec = sec32;
103 return 0;
104}
105
106/*
107 * struct xfs_bstat has differing alignment on intel, & bstime_t sizes
108 * everywhere
109 */
110STATIC int
111xfs_ioctl32_bstat_copyin(
112 struct xfs_bstat *bstat,
113 struct compat_xfs_bstat __user *bstat32)
114{
115 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
116 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
117 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
118 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
119 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
120 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
121 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
122 get_user(bstat->bs_size, &bstat32->bs_size) ||
123 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
124 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
125 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
126 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
127 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
128 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
129 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
130 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
131 get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
132 get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
133 get_user(bstat->bs_forkoff, &bstat32->bs_forkoff) ||
134 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
135 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
136 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
137 return -EFAULT;
138 return 0;
139}
140
141/* XFS_IOC_FSBULKSTAT and friends */
142
143STATIC int
144xfs_bstime_store_compat(
145 compat_xfs_bstime_t __user *p32,
146 const xfs_bstime_t *p)
147{
148 __s32 sec32;
149
150 sec32 = p->tv_sec;
151 if (put_user(sec32, &p32->tv_sec) ||
152 put_user(p->tv_nsec, &p32->tv_nsec))
153 return -EFAULT;
154 return 0;
155}
156
157/* Return 0 on success or positive error (to xfs_bulkstat()) */
158STATIC int
159xfs_fsbulkstat_one_fmt_compat(
160 struct xfs_ibulk *breq,
161 const struct xfs_bulkstat *bstat)
162{
163 struct compat_xfs_bstat __user *p32 = breq->ubuffer;
164 struct xfs_bstat bs1;
165 struct xfs_bstat *buffer = &bs1;
166
167 xfs_bulkstat_to_bstat(breq->mp, &bs1, bstat);
168
169 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
170 put_user(buffer->bs_mode, &p32->bs_mode) ||
171 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
172 put_user(buffer->bs_uid, &p32->bs_uid) ||
173 put_user(buffer->bs_gid, &p32->bs_gid) ||
174 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
175 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
176 put_user(buffer->bs_size, &p32->bs_size) ||
177 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
178 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
179 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
180 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
181 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
182 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
183 put_user(buffer->bs_extents, &p32->bs_extents) ||
184 put_user(buffer->bs_gen, &p32->bs_gen) ||
185 put_user(buffer->bs_projid, &p32->bs_projid) ||
186 put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) ||
187 put_user(buffer->bs_forkoff, &p32->bs_forkoff) ||
188 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
189 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
190 put_user(buffer->bs_aextents, &p32->bs_aextents))
191 return -EFAULT;
192
193 return xfs_ibulk_advance(breq, sizeof(struct compat_xfs_bstat));
194}
195
196/* copied from xfs_ioctl.c */
197STATIC int
198xfs_compat_ioc_fsbulkstat(
199 struct file *file,
200 unsigned int cmd,
201 struct compat_xfs_fsop_bulkreq __user *p32)
202{
203 struct xfs_mount *mp = XFS_I(file_inode(file))->i_mount;
204 u32 addr;
205 struct xfs_fsop_bulkreq bulkreq;
206 struct xfs_ibulk breq = {
207 .mp = mp,
208 .idmap = file_mnt_idmap(file),
209 .ocount = 0,
210 };
211 xfs_ino_t lastino;
212 int error;
213
214 /*
215 * Output structure handling functions. Depending on the command,
216 * either the xfs_bstat and xfs_inogrp structures are written out
217 * to userpace memory via bulkreq.ubuffer. Normally the compat
218 * functions and structure size are the correct ones to use ...
219 */
220 inumbers_fmt_pf inumbers_func = xfs_fsinumbers_fmt_compat;
221 bulkstat_one_fmt_pf bs_one_func = xfs_fsbulkstat_one_fmt_compat;
222
223#ifdef CONFIG_X86_X32_ABI
224 if (in_x32_syscall()) {
225 /*
226 * ... but on x32 the input xfs_fsop_bulkreq has pointers
227 * which must be handled in the "compat" (32-bit) way, while
228 * the xfs_bstat and xfs_inogrp structures follow native 64-
229 * bit layout convention. So adjust accordingly, otherwise
230 * the data written out in compat layout will not match what
231 * x32 userspace expects.
232 */
233 inumbers_func = xfs_fsinumbers_fmt;
234 bs_one_func = xfs_fsbulkstat_one_fmt;
235 }
236#endif
237
238 /* done = 1 if there are more stats to get and if bulkstat */
239 /* should be called again (unused here, but used in dmapi) */
240
241 if (!capable(CAP_SYS_ADMIN))
242 return -EPERM;
243
244 if (xfs_is_shutdown(mp))
245 return -EIO;
246
247 if (get_user(addr, &p32->lastip))
248 return -EFAULT;
249 bulkreq.lastip = compat_ptr(addr);
250 if (get_user(bulkreq.icount, &p32->icount) ||
251 get_user(addr, &p32->ubuffer))
252 return -EFAULT;
253 bulkreq.ubuffer = compat_ptr(addr);
254 if (get_user(addr, &p32->ocount))
255 return -EFAULT;
256 bulkreq.ocount = compat_ptr(addr);
257
258 if (copy_from_user(&lastino, bulkreq.lastip, sizeof(__s64)))
259 return -EFAULT;
260
261 if (bulkreq.icount <= 0)
262 return -EINVAL;
263
264 if (bulkreq.ubuffer == NULL)
265 return -EINVAL;
266
267 breq.ubuffer = bulkreq.ubuffer;
268 breq.icount = bulkreq.icount;
269
270 /*
271 * FSBULKSTAT_SINGLE expects that *lastip contains the inode number
272 * that we want to stat. However, FSINUMBERS and FSBULKSTAT expect
273 * that *lastip contains either zero or the number of the last inode to
274 * be examined by the previous call and return results starting with
275 * the next inode after that. The new bulk request back end functions
276 * take the inode to start with, so we have to compute the startino
277 * parameter from lastino to maintain correct function. lastino == 0
278 * is a special case because it has traditionally meant "first inode
279 * in filesystem".
280 */
281 if (cmd == XFS_IOC_FSINUMBERS_32) {
282 breq.startino = lastino ? lastino + 1 : 0;
283 error = xfs_inumbers(&breq, inumbers_func);
284 lastino = breq.startino - 1;
285 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
286 breq.startino = lastino;
287 breq.icount = 1;
288 error = xfs_bulkstat_one(&breq, bs_one_func);
289 lastino = breq.startino;
290 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
291 breq.startino = lastino ? lastino + 1 : 0;
292 error = xfs_bulkstat(&breq, bs_one_func);
293 lastino = breq.startino - 1;
294 } else {
295 error = -EINVAL;
296 }
297 if (error)
298 return error;
299
300 if (bulkreq.lastip != NULL &&
301 copy_to_user(bulkreq.lastip, &lastino, sizeof(xfs_ino_t)))
302 return -EFAULT;
303
304 if (bulkreq.ocount != NULL &&
305 copy_to_user(bulkreq.ocount, &breq.ocount, sizeof(__s32)))
306 return -EFAULT;
307
308 return 0;
309}
310
311STATIC int
312xfs_compat_handlereq_copyin(
313 xfs_fsop_handlereq_t *hreq,
314 compat_xfs_fsop_handlereq_t __user *arg32)
315{
316 compat_xfs_fsop_handlereq_t hreq32;
317
318 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
319 return -EFAULT;
320
321 hreq->fd = hreq32.fd;
322 hreq->path = compat_ptr(hreq32.path);
323 hreq->oflags = hreq32.oflags;
324 hreq->ihandle = compat_ptr(hreq32.ihandle);
325 hreq->ihandlen = hreq32.ihandlen;
326 hreq->ohandle = compat_ptr(hreq32.ohandle);
327 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
328
329 return 0;
330}
331
332STATIC struct dentry *
333xfs_compat_handlereq_to_dentry(
334 struct file *parfilp,
335 compat_xfs_fsop_handlereq_t *hreq)
336{
337 return xfs_handle_to_dentry(parfilp,
338 compat_ptr(hreq->ihandle), hreq->ihandlen);
339}
340
341STATIC int
342xfs_compat_attrlist_by_handle(
343 struct file *parfilp,
344 compat_xfs_fsop_attrlist_handlereq_t __user *p)
345{
346 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
347 struct dentry *dentry;
348 int error;
349
350 if (!capable(CAP_SYS_ADMIN))
351 return -EPERM;
352 if (copy_from_user(&al_hreq, p, sizeof(al_hreq)))
353 return -EFAULT;
354
355 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
356 if (IS_ERR(dentry))
357 return PTR_ERR(dentry);
358
359 error = xfs_ioc_attr_list(XFS_I(d_inode(dentry)),
360 compat_ptr(al_hreq.buffer), al_hreq.buflen,
361 al_hreq.flags, &p->pos);
362 dput(dentry);
363 return error;
364}
365
366STATIC int
367xfs_compat_attrmulti_by_handle(
368 struct file *parfilp,
369 void __user *arg)
370{
371 int error;
372 compat_xfs_attr_multiop_t *ops;
373 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
374 struct dentry *dentry;
375 unsigned int i, size;
376
377 if (!capable(CAP_SYS_ADMIN))
378 return -EPERM;
379 if (copy_from_user(&am_hreq, arg,
380 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
381 return -EFAULT;
382
383 /* overflow check */
384 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
385 return -E2BIG;
386
387 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
388 if (IS_ERR(dentry))
389 return PTR_ERR(dentry);
390
391 error = -E2BIG;
392 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
393 if (!size || size > 16 * PAGE_SIZE)
394 goto out_dput;
395
396 ops = memdup_user(compat_ptr(am_hreq.ops), size);
397 if (IS_ERR(ops)) {
398 error = PTR_ERR(ops);
399 goto out_dput;
400 }
401
402 error = 0;
403 for (i = 0; i < am_hreq.opcount; i++) {
404 ops[i].am_error = xfs_ioc_attrmulti_one(parfilp,
405 d_inode(dentry), ops[i].am_opcode,
406 compat_ptr(ops[i].am_attrname),
407 compat_ptr(ops[i].am_attrvalue),
408 &ops[i].am_length, ops[i].am_flags);
409 }
410
411 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
412 error = -EFAULT;
413
414 kfree(ops);
415 out_dput:
416 dput(dentry);
417 return error;
418}
419
420long
421xfs_file_compat_ioctl(
422 struct file *filp,
423 unsigned cmd,
424 unsigned long p)
425{
426 struct inode *inode = file_inode(filp);
427 struct xfs_inode *ip = XFS_I(inode);
428 void __user *arg = compat_ptr(p);
429 int error;
430
431 trace_xfs_file_compat_ioctl(ip);
432
433 switch (cmd) {
434#if defined(BROKEN_X86_ALIGNMENT)
435 case XFS_IOC_FSGEOMETRY_V1_32:
436 return xfs_compat_ioc_fsgeometry_v1(ip->i_mount, arg);
437 case XFS_IOC_FSGROWFSDATA_32: {
438 struct xfs_growfs_data in;
439
440 if (xfs_compat_growfs_data_copyin(&in, arg))
441 return -EFAULT;
442 error = mnt_want_write_file(filp);
443 if (error)
444 return error;
445 error = xfs_growfs_data(ip->i_mount, &in);
446 mnt_drop_write_file(filp);
447 return error;
448 }
449 case XFS_IOC_FSGROWFSRT_32: {
450 struct xfs_growfs_rt in;
451
452 if (xfs_compat_growfs_rt_copyin(&in, arg))
453 return -EFAULT;
454 error = mnt_want_write_file(filp);
455 if (error)
456 return error;
457 error = xfs_growfs_rt(ip->i_mount, &in);
458 mnt_drop_write_file(filp);
459 return error;
460 }
461#endif
462 /* long changes size, but xfs only copiese out 32 bits */
463 case XFS_IOC_GETVERSION_32:
464 cmd = _NATIVE_IOC(cmd, long);
465 return xfs_file_ioctl(filp, cmd, p);
466 case XFS_IOC_SWAPEXT_32: {
467 struct xfs_swapext sxp;
468 struct compat_xfs_swapext __user *sxu = arg;
469
470 /* Bulk copy in up to the sx_stat field, then copy bstat */
471 if (copy_from_user(&sxp, sxu,
472 offsetof(struct xfs_swapext, sx_stat)) ||
473 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
474 return -EFAULT;
475 error = mnt_want_write_file(filp);
476 if (error)
477 return error;
478 error = xfs_ioc_swapext(&sxp);
479 mnt_drop_write_file(filp);
480 return error;
481 }
482 case XFS_IOC_FSBULKSTAT_32:
483 case XFS_IOC_FSBULKSTAT_SINGLE_32:
484 case XFS_IOC_FSINUMBERS_32:
485 return xfs_compat_ioc_fsbulkstat(filp, cmd, arg);
486 case XFS_IOC_FD_TO_HANDLE_32:
487 case XFS_IOC_PATH_TO_HANDLE_32:
488 case XFS_IOC_PATH_TO_FSHANDLE_32: {
489 struct xfs_fsop_handlereq hreq;
490
491 if (xfs_compat_handlereq_copyin(&hreq, arg))
492 return -EFAULT;
493 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
494 return xfs_find_handle(cmd, &hreq);
495 }
496 case XFS_IOC_OPEN_BY_HANDLE_32: {
497 struct xfs_fsop_handlereq hreq;
498
499 if (xfs_compat_handlereq_copyin(&hreq, arg))
500 return -EFAULT;
501 return xfs_open_by_handle(filp, &hreq);
502 }
503 case XFS_IOC_READLINK_BY_HANDLE_32: {
504 struct xfs_fsop_handlereq hreq;
505
506 if (xfs_compat_handlereq_copyin(&hreq, arg))
507 return -EFAULT;
508 return xfs_readlink_by_handle(filp, &hreq);
509 }
510 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
511 return xfs_compat_attrlist_by_handle(filp, arg);
512 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
513 return xfs_compat_attrmulti_by_handle(filp, arg);
514 default:
515 /* try the native version */
516 return xfs_file_ioctl(filp, cmd, (unsigned long)arg);
517 }
518}