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