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18#include <linux/compat.h>
19#include <linux/ioctl.h>
20#include <linux/mount.h>
21#include <linux/slab.h>
22#include <linux/uaccess.h>
23#include <linux/fsmap.h>
24#include "xfs.h"
25#include "xfs_fs.h"
26#include "xfs_format.h"
27#include "xfs_log_format.h"
28#include "xfs_trans_resv.h"
29#include "xfs_mount.h"
30#include "xfs_inode.h"
31#include "xfs_itable.h"
32#include "xfs_error.h"
33#include "xfs_fsops.h"
34#include "xfs_alloc.h"
35#include "xfs_rtalloc.h"
36#include "xfs_attr.h"
37#include "xfs_ioctl.h"
38#include "xfs_ioctl32.h"
39#include "xfs_trace.h"
40
41#define _NATIVE_IOC(cmd, type) \
42 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
43
44#ifdef BROKEN_X86_ALIGNMENT
45STATIC int
46xfs_compat_flock64_copyin(
47 xfs_flock64_t *bf,
48 compat_xfs_flock64_t __user *arg32)
49{
50 if (get_user(bf->l_type, &arg32->l_type) ||
51 get_user(bf->l_whence, &arg32->l_whence) ||
52 get_user(bf->l_start, &arg32->l_start) ||
53 get_user(bf->l_len, &arg32->l_len) ||
54 get_user(bf->l_sysid, &arg32->l_sysid) ||
55 get_user(bf->l_pid, &arg32->l_pid) ||
56 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
57 return -EFAULT;
58 return 0;
59}
60
61STATIC int
62xfs_compat_ioc_fsgeometry_v1(
63 struct xfs_mount *mp,
64 compat_xfs_fsop_geom_v1_t __user *arg32)
65{
66 xfs_fsop_geom_t fsgeo;
67 int error;
68
69 error = xfs_fs_geometry(mp, &fsgeo, 3);
70 if (error)
71 return error;
72
73 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
74 return -EFAULT;
75 return 0;
76}
77
78STATIC int
79xfs_compat_growfs_data_copyin(
80 struct xfs_growfs_data *in,
81 compat_xfs_growfs_data_t __user *arg32)
82{
83 if (get_user(in->newblocks, &arg32->newblocks) ||
84 get_user(in->imaxpct, &arg32->imaxpct))
85 return -EFAULT;
86 return 0;
87}
88
89STATIC int
90xfs_compat_growfs_rt_copyin(
91 struct xfs_growfs_rt *in,
92 compat_xfs_growfs_rt_t __user *arg32)
93{
94 if (get_user(in->newblocks, &arg32->newblocks) ||
95 get_user(in->extsize, &arg32->extsize))
96 return -EFAULT;
97 return 0;
98}
99
100STATIC int
101xfs_inumbers_fmt_compat(
102 void __user *ubuffer,
103 const struct xfs_inogrp *buffer,
104 long count,
105 long *written)
106{
107 compat_xfs_inogrp_t __user *p32 = ubuffer;
108 long i;
109
110 for (i = 0; i < count; i++) {
111 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
112 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
113 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
114 return -EFAULT;
115 }
116 *written = count * sizeof(*p32);
117 return 0;
118}
119
120#else
121#define xfs_inumbers_fmt_compat xfs_inumbers_fmt
122#endif
123
124STATIC int
125xfs_ioctl32_bstime_copyin(
126 xfs_bstime_t *bstime,
127 compat_xfs_bstime_t __user *bstime32)
128{
129 compat_time_t sec32;
130
131 if (get_user(sec32, &bstime32->tv_sec) ||
132 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
133 return -EFAULT;
134 bstime->tv_sec = sec32;
135 return 0;
136}
137
138
139STATIC int
140xfs_ioctl32_bstat_copyin(
141 xfs_bstat_t *bstat,
142 compat_xfs_bstat_t __user *bstat32)
143{
144 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
145 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
146 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
147 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
148 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
149 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
150 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
151 get_user(bstat->bs_size, &bstat32->bs_size) ||
152 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
153 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
154 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
155 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
156 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
157 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
158 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
159 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
160 get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
161 get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
162 get_user(bstat->bs_forkoff, &bstat32->bs_forkoff) ||
163 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
164 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
165 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
166 return -EFAULT;
167 return 0;
168}
169
170
171
172STATIC int
173xfs_bstime_store_compat(
174 compat_xfs_bstime_t __user *p32,
175 const xfs_bstime_t *p)
176{
177 __s32 sec32;
178
179 sec32 = p->tv_sec;
180 if (put_user(sec32, &p32->tv_sec) ||
181 put_user(p->tv_nsec, &p32->tv_nsec))
182 return -EFAULT;
183 return 0;
184}
185
186
187STATIC int
188xfs_bulkstat_one_fmt_compat(
189 void __user *ubuffer,
190 int ubsize,
191 int *ubused,
192 const xfs_bstat_t *buffer)
193{
194 compat_xfs_bstat_t __user *p32 = ubuffer;
195
196 if (ubsize < sizeof(*p32))
197 return -ENOMEM;
198
199 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
200 put_user(buffer->bs_mode, &p32->bs_mode) ||
201 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
202 put_user(buffer->bs_uid, &p32->bs_uid) ||
203 put_user(buffer->bs_gid, &p32->bs_gid) ||
204 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
205 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
206 put_user(buffer->bs_size, &p32->bs_size) ||
207 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
208 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
209 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
210 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
211 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
212 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
213 put_user(buffer->bs_extents, &p32->bs_extents) ||
214 put_user(buffer->bs_gen, &p32->bs_gen) ||
215 put_user(buffer->bs_projid, &p32->bs_projid) ||
216 put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) ||
217 put_user(buffer->bs_forkoff, &p32->bs_forkoff) ||
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 -EFAULT;
222 if (ubused)
223 *ubused = sizeof(*p32);
224 return 0;
225}
226
227STATIC int
228xfs_bulkstat_one_compat(
229 xfs_mount_t *mp,
230 xfs_ino_t ino,
231 void __user *buffer,
232 int ubsize,
233 int *ubused,
234 int *stat)
235{
236 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
237 xfs_bulkstat_one_fmt_compat,
238 ubused, stat);
239}
240
241
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;
251 xfs_ino_t inlast;
252 int done;
253 int error;
254
255
256
257
258 if (!capable(CAP_SYS_ADMIN))
259 return -EPERM;
260
261 if (XFS_FORCED_SHUTDOWN(mp))
262 return -EIO;
263
264 if (get_user(addr, &p32->lastip))
265 return -EFAULT;
266 bulkreq.lastip = compat_ptr(addr);
267 if (get_user(bulkreq.icount, &p32->icount) ||
268 get_user(addr, &p32->ubuffer))
269 return -EFAULT;
270 bulkreq.ubuffer = compat_ptr(addr);
271 if (get_user(addr, &p32->ocount))
272 return -EFAULT;
273 bulkreq.ocount = compat_ptr(addr);
274
275 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
276 return -EFAULT;
277
278 if ((count = bulkreq.icount) <= 0)
279 return -EINVAL;
280
281 if (bulkreq.ubuffer == NULL)
282 return -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 = -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 -EFAULT;
305
306 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
307 return -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 -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 -EPERM;
356 if (copy_from_user(&al_hreq, arg,
357 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
358 return -EFAULT;
359 if (al_hreq.buflen < sizeof(struct attrlist) ||
360 al_hreq.buflen > XFS_XATTR_LIST_MAX)
361 return -EINVAL;
362
363
364
365
366 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
367 return -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(d_inode(dentry)), 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 -EPERM;
408 if (copy_from_user(&am_hreq, arg,
409 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
410 return -EFAULT;
411
412
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 error = -ENOMEM;
432 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
433 if (!attr_name)
434 goto out_kfree_ops;
435
436 error = 0;
437 for (i = 0; i < am_hreq.opcount; i++) {
438 ops[i].am_error = strncpy_from_user((char *)attr_name,
439 compat_ptr(ops[i].am_attrname),
440 MAXNAMELEN);
441 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
442 error = -ERANGE;
443 if (ops[i].am_error < 0)
444 break;
445
446 switch (ops[i].am_opcode) {
447 case ATTR_OP_GET:
448 ops[i].am_error = xfs_attrmulti_attr_get(
449 d_inode(dentry), attr_name,
450 compat_ptr(ops[i].am_attrvalue),
451 &ops[i].am_length, ops[i].am_flags);
452 break;
453 case ATTR_OP_SET:
454 ops[i].am_error = mnt_want_write_file(parfilp);
455 if (ops[i].am_error)
456 break;
457 ops[i].am_error = xfs_attrmulti_attr_set(
458 d_inode(dentry), attr_name,
459 compat_ptr(ops[i].am_attrvalue),
460 ops[i].am_length, ops[i].am_flags);
461 mnt_drop_write_file(parfilp);
462 break;
463 case ATTR_OP_REMOVE:
464 ops[i].am_error = mnt_want_write_file(parfilp);
465 if (ops[i].am_error)
466 break;
467 ops[i].am_error = xfs_attrmulti_attr_remove(
468 d_inode(dentry), attr_name,
469 ops[i].am_flags);
470 mnt_drop_write_file(parfilp);
471 break;
472 default:
473 ops[i].am_error = -EINVAL;
474 }
475 }
476
477 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
478 error = -EFAULT;
479
480 kfree(attr_name);
481 out_kfree_ops:
482 kfree(ops);
483 out_dput:
484 dput(dentry);
485 return error;
486}
487
488STATIC int
489xfs_compat_fssetdm_by_handle(
490 struct file *parfilp,
491 void __user *arg)
492{
493 int error;
494 struct fsdmidata fsd;
495 compat_xfs_fsop_setdm_handlereq_t dmhreq;
496 struct dentry *dentry;
497
498 if (!capable(CAP_MKNOD))
499 return -EPERM;
500 if (copy_from_user(&dmhreq, arg,
501 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
502 return -EFAULT;
503
504 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
505 if (IS_ERR(dentry))
506 return PTR_ERR(dentry);
507
508 if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
509 error = -EPERM;
510 goto out;
511 }
512
513 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
514 error = -EFAULT;
515 goto out;
516 }
517
518 error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
519 fsd.fsd_dmstate);
520
521out:
522 dput(dentry);
523 return error;
524}
525
526long
527xfs_file_compat_ioctl(
528 struct file *filp,
529 unsigned cmd,
530 unsigned long p)
531{
532 struct inode *inode = file_inode(filp);
533 struct xfs_inode *ip = XFS_I(inode);
534 struct xfs_mount *mp = ip->i_mount;
535 void __user *arg = (void __user *)p;
536 int error;
537
538 trace_xfs_file_compat_ioctl(ip);
539
540 switch (cmd) {
541
542 case XFS_IOC_DIOINFO:
543 case XFS_IOC_FSGEOMETRY:
544 case XFS_IOC_FSGETXATTR:
545 case XFS_IOC_FSSETXATTR:
546 case XFS_IOC_FSGETXATTRA:
547 case XFS_IOC_FSSETDM:
548 case XFS_IOC_GETBMAP:
549 case XFS_IOC_GETBMAPA:
550 case XFS_IOC_GETBMAPX:
551 case XFS_IOC_FSCOUNTS:
552 case XFS_IOC_SET_RESBLKS:
553 case XFS_IOC_GET_RESBLKS:
554 case XFS_IOC_FSGROWFSLOG:
555 case XFS_IOC_GOINGDOWN:
556 case XFS_IOC_ERROR_INJECTION:
557 case XFS_IOC_ERROR_CLEARALL:
558 case FS_IOC_GETFSMAP:
559 return xfs_file_ioctl(filp, cmd, p);
560#ifndef BROKEN_X86_ALIGNMENT
561
562 case XFS_IOC_ALLOCSP:
563 case XFS_IOC_FREESP:
564 case XFS_IOC_RESVSP:
565 case XFS_IOC_UNRESVSP:
566 case XFS_IOC_ALLOCSP64:
567 case XFS_IOC_FREESP64:
568 case XFS_IOC_RESVSP64:
569 case XFS_IOC_UNRESVSP64:
570 case XFS_IOC_FSGEOMETRY_V1:
571 case XFS_IOC_FSGROWFSDATA:
572 case XFS_IOC_FSGROWFSRT:
573 case XFS_IOC_ZERO_RANGE:
574 return xfs_file_ioctl(filp, cmd, p);
575#else
576 case XFS_IOC_ALLOCSP_32:
577 case XFS_IOC_FREESP_32:
578 case XFS_IOC_ALLOCSP64_32:
579 case XFS_IOC_FREESP64_32:
580 case XFS_IOC_RESVSP_32:
581 case XFS_IOC_UNRESVSP_32:
582 case XFS_IOC_RESVSP64_32:
583 case XFS_IOC_UNRESVSP64_32:
584 case XFS_IOC_ZERO_RANGE_32: {
585 struct xfs_flock64 bf;
586
587 if (xfs_compat_flock64_copyin(&bf, arg))
588 return -EFAULT;
589 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
590 return xfs_ioc_space(filp, cmd, &bf);
591 }
592 case XFS_IOC_FSGEOMETRY_V1_32:
593 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
594 case XFS_IOC_FSGROWFSDATA_32: {
595 struct xfs_growfs_data in;
596
597 if (xfs_compat_growfs_data_copyin(&in, arg))
598 return -EFAULT;
599 error = mnt_want_write_file(filp);
600 if (error)
601 return error;
602 error = xfs_growfs_data(mp, &in);
603 mnt_drop_write_file(filp);
604 return error;
605 }
606 case XFS_IOC_FSGROWFSRT_32: {
607 struct xfs_growfs_rt in;
608
609 if (xfs_compat_growfs_rt_copyin(&in, arg))
610 return -EFAULT;
611 error = mnt_want_write_file(filp);
612 if (error)
613 return error;
614 error = xfs_growfs_rt(mp, &in);
615 mnt_drop_write_file(filp);
616 return error;
617 }
618#endif
619
620 case XFS_IOC_GETXFLAGS_32:
621 case XFS_IOC_SETXFLAGS_32:
622 case XFS_IOC_GETVERSION_32:
623 cmd = _NATIVE_IOC(cmd, long);
624 return xfs_file_ioctl(filp, cmd, p);
625 case XFS_IOC_SWAPEXT_32: {
626 struct xfs_swapext sxp;
627 struct compat_xfs_swapext __user *sxu = arg;
628
629
630 if (copy_from_user(&sxp, sxu,
631 offsetof(struct xfs_swapext, sx_stat)) ||
632 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
633 return -EFAULT;
634 error = mnt_want_write_file(filp);
635 if (error)
636 return error;
637 error = xfs_ioc_swapext(&sxp);
638 mnt_drop_write_file(filp);
639 return error;
640 }
641 case XFS_IOC_FSBULKSTAT_32:
642 case XFS_IOC_FSBULKSTAT_SINGLE_32:
643 case XFS_IOC_FSINUMBERS_32:
644 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
645 case XFS_IOC_FD_TO_HANDLE_32:
646 case XFS_IOC_PATH_TO_HANDLE_32:
647 case XFS_IOC_PATH_TO_FSHANDLE_32: {
648 struct xfs_fsop_handlereq hreq;
649
650 if (xfs_compat_handlereq_copyin(&hreq, arg))
651 return -EFAULT;
652 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
653 return xfs_find_handle(cmd, &hreq);
654 }
655 case XFS_IOC_OPEN_BY_HANDLE_32: {
656 struct xfs_fsop_handlereq hreq;
657
658 if (xfs_compat_handlereq_copyin(&hreq, arg))
659 return -EFAULT;
660 return xfs_open_by_handle(filp, &hreq);
661 }
662 case XFS_IOC_READLINK_BY_HANDLE_32: {
663 struct xfs_fsop_handlereq hreq;
664
665 if (xfs_compat_handlereq_copyin(&hreq, arg))
666 return -EFAULT;
667 return xfs_readlink_by_handle(filp, &hreq);
668 }
669 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
670 return xfs_compat_attrlist_by_handle(filp, arg);
671 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
672 return xfs_compat_attrmulti_by_handle(filp, arg);
673 case XFS_IOC_FSSETDM_BY_HANDLE_32:
674 return xfs_compat_fssetdm_by_handle(filp, arg);
675 default:
676 return -ENOIOCTLCMD;
677 }
678}
679
