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192.168.1.100 / T103 / 1f884588077ad3476b9c91cbb0ee9ee0332bbb68 / . / src / kernel / linux / v4.14 / fs / xfs / xfs_ioctl32.c
blob: 5f616a6a5358d21dd813b9ba719adabd99702aa9 [file] [log] [blame]
rjw1f884582022-01-06 17:20:42 +0800[diff] [blame^]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 <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 /* The 32-bit variant simply has some padding at the end */
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 /* BROKEN_X86_ALIGNMENT */
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; /* tv_sec differs on 64 vs. 32 */
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/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
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/* XFS_IOC_FSBULKSTAT and friends */
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/* Return 0 on success or positive error (to xfs_bulkstat()) */
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, /* 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 /*
256 * Output structure handling functions. Depending on the command,
257 * either the xfs_bstat and xfs_inogrp structures are written out
258 * to userpace memory via bulkreq.ubuffer. Normally the compat
259 * functions and structure size are the correct ones to use ...
260 */
261 inumbers_fmt_pf inumbers_func = xfs_inumbers_fmt_compat;
262 bulkstat_one_pf bs_one_func = xfs_bulkstat_one_compat;
263 size_t bs_one_size = sizeof(struct compat_xfs_bstat);
264
265#ifdef CONFIG_X86_X32
266 if (in_x32_syscall()) {
267 /*
268 * ... but on x32 the input xfs_fsop_bulkreq has pointers
269 * which must be handled in the "compat" (32-bit) way, while
270 * the xfs_bstat and xfs_inogrp structures follow native 64-
271 * bit layout convention. So adjust accordingly, otherwise
272 * the data written out in compat layout will not match what
273 * x32 userspace expects.
274 */
275 inumbers_func = xfs_inumbers_fmt;
276 bs_one_func = xfs_bulkstat_one;
277 bs_one_size = sizeof(struct xfs_bstat);
278 }
279#endif
280
281 /* done = 1 if there are more stats to get and if bulkstat */
282 /* should be called again (unused here, but used in dmapi) */
283
284 if (!capable(CAP_SYS_ADMIN))
285 return -EPERM;
286
287 if (XFS_FORCED_SHUTDOWN(mp))
288 return -EIO;
289
290 if (get_user(addr, &p32->lastip))
291 return -EFAULT;
292 bulkreq.lastip = compat_ptr(addr);
293 if (get_user(bulkreq.icount, &p32->icount) ||
294 get_user(addr, &p32->ubuffer))
295 return -EFAULT;
296 bulkreq.ubuffer = compat_ptr(addr);
297 if (get_user(addr, &p32->ocount))
298 return -EFAULT;
299 bulkreq.ocount = compat_ptr(addr);
300
301 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
302 return -EFAULT;
303
304 if ((count = bulkreq.icount) <= 0)
305 return -EINVAL;
306
307 if (bulkreq.ubuffer == NULL)
308 return -EINVAL;
309
310 if (cmd == XFS_IOC_FSINUMBERS_32) {
311 error = xfs_inumbers(mp, &inlast, &count,
312 bulkreq.ubuffer, inumbers_func);
313 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
314 int res;
315
316 error = bs_one_func(mp, inlast, bulkreq.ubuffer,
317 bs_one_size, NULL, &res);
318 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
319 error = xfs_bulkstat(mp, &inlast, &count,
320 bs_one_func, bs_one_size,
321 bulkreq.ubuffer, &done);
322 } else
323 error = -EINVAL;
324 if (error)
325 return error;
326
327 if (bulkreq.ocount != NULL) {
328 if (copy_to_user(bulkreq.lastip, &inlast,
329 sizeof(xfs_ino_t)))
330 return -EFAULT;
331
332 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
333 return -EFAULT;
334 }
335
336 return 0;
337}
338
339STATIC int
340xfs_compat_handlereq_copyin(
341 xfs_fsop_handlereq_t *hreq,
342 compat_xfs_fsop_handlereq_t __user *arg32)
343{
344 compat_xfs_fsop_handlereq_t hreq32;
345
346 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
347 return -EFAULT;
348
349 hreq->fd = hreq32.fd;
350 hreq->path = compat_ptr(hreq32.path);
351 hreq->oflags = hreq32.oflags;
352 hreq->ihandle = compat_ptr(hreq32.ihandle);
353 hreq->ihandlen = hreq32.ihandlen;
354 hreq->ohandle = compat_ptr(hreq32.ohandle);
355 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
356
357 return 0;
358}
359
360STATIC struct dentry *
361xfs_compat_handlereq_to_dentry(
362 struct file *parfilp,
363 compat_xfs_fsop_handlereq_t *hreq)
364{
365 return xfs_handle_to_dentry(parfilp,
366 compat_ptr(hreq->ihandle), hreq->ihandlen);
367}
368
369STATIC int
370xfs_compat_attrlist_by_handle(
371 struct file *parfilp,
372 void __user *arg)
373{
374 int error;
375 attrlist_cursor_kern_t *cursor;
376 compat_xfs_fsop_attrlist_handlereq_t __user *p = arg;
377 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
378 struct dentry *dentry;
379 char *kbuf;
380
381 if (!capable(CAP_SYS_ADMIN))
382 return -EPERM;
383 if (copy_from_user(&al_hreq, arg,
384 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
385 return -EFAULT;
386 if (al_hreq.buflen < sizeof(struct attrlist) ||
387 al_hreq.buflen > XFS_XATTR_LIST_MAX)
388 return -EINVAL;
389
390 /*
391 * Reject flags, only allow namespaces.
392 */
393 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
394 return -EINVAL;
395
396 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
397 if (IS_ERR(dentry))
398 return PTR_ERR(dentry);
399
400 error = -ENOMEM;
401 kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
402 if (!kbuf)
403 goto out_dput;
404
405 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
406 error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen,
407 al_hreq.flags, cursor);
408 if (error)
409 goto out_kfree;
410
411 if (copy_to_user(&p->pos, cursor, sizeof(attrlist_cursor_kern_t))) {
412 error = -EFAULT;
413 goto out_kfree;
414 }
415
416 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
417 error = -EFAULT;
418
419out_kfree:
420 kmem_free(kbuf);
421out_dput:
422 dput(dentry);
423 return error;
424}
425
426STATIC int
427xfs_compat_attrmulti_by_handle(
428 struct file *parfilp,
429 void __user *arg)
430{
431 int error;
432 compat_xfs_attr_multiop_t *ops;
433 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
434 struct dentry *dentry;
435 unsigned int i, size;
436 unsigned char *attr_name;
437
438 if (!capable(CAP_SYS_ADMIN))
439 return -EPERM;
440 if (copy_from_user(&am_hreq, arg,
441 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
442 return -EFAULT;
443
444 /* overflow check */
445 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
446 return -E2BIG;
447
448 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
449 if (IS_ERR(dentry))
450 return PTR_ERR(dentry);
451
452 error = -E2BIG;
453 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
454 if (!size || size > 16 * PAGE_SIZE)
455 goto out_dput;
456
457 ops = memdup_user(compat_ptr(am_hreq.ops), size);
458 if (IS_ERR(ops)) {
459 error = PTR_ERR(ops);
460 goto out_dput;
461 }
462
463 error = -ENOMEM;
464 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
465 if (!attr_name)
466 goto out_kfree_ops;
467
468 error = 0;
469 for (i = 0; i < am_hreq.opcount; i++) {
470 ops[i].am_error = strncpy_from_user((char *)attr_name,
471 compat_ptr(ops[i].am_attrname),
472 MAXNAMELEN);
473 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
474 error = -ERANGE;
475 if (ops[i].am_error < 0)
476 break;
477
478 switch (ops[i].am_opcode) {
479 case ATTR_OP_GET:
480 ops[i].am_error = xfs_attrmulti_attr_get(
481 d_inode(dentry), attr_name,
482 compat_ptr(ops[i].am_attrvalue),
483 &ops[i].am_length, ops[i].am_flags);
484 break;
485 case ATTR_OP_SET:
486 ops[i].am_error = mnt_want_write_file(parfilp);
487 if (ops[i].am_error)
488 break;
489 ops[i].am_error = xfs_attrmulti_attr_set(
490 d_inode(dentry), attr_name,
491 compat_ptr(ops[i].am_attrvalue),
492 ops[i].am_length, ops[i].am_flags);
493 mnt_drop_write_file(parfilp);
494 break;
495 case ATTR_OP_REMOVE:
496 ops[i].am_error = mnt_want_write_file(parfilp);
497 if (ops[i].am_error)
498 break;
499 ops[i].am_error = xfs_attrmulti_attr_remove(
500 d_inode(dentry), attr_name,
501 ops[i].am_flags);
502 mnt_drop_write_file(parfilp);
503 break;
504 default:
505 ops[i].am_error = -EINVAL;
506 }
507 }
508
509 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
510 error = -EFAULT;
511
512 kfree(attr_name);
513 out_kfree_ops:
514 kfree(ops);
515 out_dput:
516 dput(dentry);
517 return error;
518}
519
520STATIC int
521xfs_compat_fssetdm_by_handle(
522 struct file *parfilp,
523 void __user *arg)
524{
525 int error;
526 struct fsdmidata fsd;
527 compat_xfs_fsop_setdm_handlereq_t dmhreq;
528 struct dentry *dentry;
529
530 if (!capable(CAP_MKNOD))
531 return -EPERM;
532 if (copy_from_user(&dmhreq, arg,
533 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
534 return -EFAULT;
535
536 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
537 if (IS_ERR(dentry))
538 return PTR_ERR(dentry);
539
540 if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
541 error = -EPERM;
542 goto out;
543 }
544
545 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
546 error = -EFAULT;
547 goto out;
548 }
549
550 error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
551 fsd.fsd_dmstate);
552
553out:
554 dput(dentry);
555 return error;
556}
557
558long
559xfs_file_compat_ioctl(
560 struct file *filp,
561 unsigned cmd,
562 unsigned long p)
563{
564 struct inode *inode = file_inode(filp);
565 struct xfs_inode *ip = XFS_I(inode);
566 struct xfs_mount *mp = ip->i_mount;
567 void __user *arg = (void __user *)p;
568 int error;
569
570 trace_xfs_file_compat_ioctl(ip);
571
572 switch (cmd) {
573 /* No size or alignment issues on any arch */
574 case XFS_IOC_DIOINFO:
575 case XFS_IOC_FSGEOMETRY:
576 case XFS_IOC_FSGETXATTR:
577 case XFS_IOC_FSSETXATTR:
578 case XFS_IOC_FSGETXATTRA:
579 case XFS_IOC_FSSETDM:
580 case XFS_IOC_GETBMAP:
581 case XFS_IOC_GETBMAPA:
582 case XFS_IOC_GETBMAPX:
583 case XFS_IOC_FSCOUNTS:
584 case XFS_IOC_SET_RESBLKS:
585 case XFS_IOC_GET_RESBLKS:
586 case XFS_IOC_FSGROWFSLOG:
587 case XFS_IOC_GOINGDOWN:
588 case XFS_IOC_ERROR_INJECTION:
589 case XFS_IOC_ERROR_CLEARALL:
590 case FS_IOC_GETFSMAP:
591 return xfs_file_ioctl(filp, cmd, p);
592#ifndef BROKEN_X86_ALIGNMENT
593 /* These are handled fine if no alignment issues */
594 case XFS_IOC_ALLOCSP:
595 case XFS_IOC_FREESP:
596 case XFS_IOC_RESVSP:
597 case XFS_IOC_UNRESVSP:
598 case XFS_IOC_ALLOCSP64:
599 case XFS_IOC_FREESP64:
600 case XFS_IOC_RESVSP64:
601 case XFS_IOC_UNRESVSP64:
602 case XFS_IOC_FSGEOMETRY_V1:
603 case XFS_IOC_FSGROWFSDATA:
604 case XFS_IOC_FSGROWFSRT:
605 case XFS_IOC_ZERO_RANGE:
606 return xfs_file_ioctl(filp, cmd, p);
607#else
608 case XFS_IOC_ALLOCSP_32:
609 case XFS_IOC_FREESP_32:
610 case XFS_IOC_ALLOCSP64_32:
611 case XFS_IOC_FREESP64_32:
612 case XFS_IOC_RESVSP_32:
613 case XFS_IOC_UNRESVSP_32:
614 case XFS_IOC_RESVSP64_32:
615 case XFS_IOC_UNRESVSP64_32:
616 case XFS_IOC_ZERO_RANGE_32: {
617 struct xfs_flock64 bf;
618
619 if (xfs_compat_flock64_copyin(&bf, arg))
620 return -EFAULT;
621 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
622 return xfs_ioc_space(filp, cmd, &bf);
623 }
624 case XFS_IOC_FSGEOMETRY_V1_32:
625 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
626 case XFS_IOC_FSGROWFSDATA_32: {
627 struct xfs_growfs_data in;
628
629 if (xfs_compat_growfs_data_copyin(&in, arg))
630 return -EFAULT;
631 error = mnt_want_write_file(filp);
632 if (error)
633 return error;
634 error = xfs_growfs_data(mp, &in);
635 mnt_drop_write_file(filp);
636 return error;
637 }
638 case XFS_IOC_FSGROWFSRT_32: {
639 struct xfs_growfs_rt in;
640
641 if (xfs_compat_growfs_rt_copyin(&in, arg))
642 return -EFAULT;
643 error = mnt_want_write_file(filp);
644 if (error)
645 return error;
646 error = xfs_growfs_rt(mp, &in);
647 mnt_drop_write_file(filp);
648 return error;
649 }
650#endif
651 /* long changes size, but xfs only copiese out 32 bits */
652 case XFS_IOC_GETXFLAGS_32:
653 case XFS_IOC_SETXFLAGS_32:
654 case XFS_IOC_GETVERSION_32:
655 cmd = _NATIVE_IOC(cmd, long);
656 return xfs_file_ioctl(filp, cmd, p);
657 case XFS_IOC_SWAPEXT_32: {
658 struct xfs_swapext sxp;
659 struct compat_xfs_swapext __user *sxu = arg;
660
661 /* Bulk copy in up to the sx_stat field, then copy bstat */
662 if (copy_from_user(&sxp, sxu,
663 offsetof(struct xfs_swapext, sx_stat)) ||
664 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
665 return -EFAULT;
666 error = mnt_want_write_file(filp);
667 if (error)
668 return error;
669 error = xfs_ioc_swapext(&sxp);
670 mnt_drop_write_file(filp);
671 return error;
672 }
673 case XFS_IOC_FSBULKSTAT_32:
674 case XFS_IOC_FSBULKSTAT_SINGLE_32:
675 case XFS_IOC_FSINUMBERS_32:
676 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
677 case XFS_IOC_FD_TO_HANDLE_32:
678 case XFS_IOC_PATH_TO_HANDLE_32:
679 case XFS_IOC_PATH_TO_FSHANDLE_32: {
680 struct xfs_fsop_handlereq hreq;
681
682 if (xfs_compat_handlereq_copyin(&hreq, arg))
683 return -EFAULT;
684 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
685 return xfs_find_handle(cmd, &hreq);
686 }
687 case XFS_IOC_OPEN_BY_HANDLE_32: {
688 struct xfs_fsop_handlereq hreq;
689
690 if (xfs_compat_handlereq_copyin(&hreq, arg))
691 return -EFAULT;
692 return xfs_open_by_handle(filp, &hreq);
693 }
694 case XFS_IOC_READLINK_BY_HANDLE_32: {
695 struct xfs_fsop_handlereq hreq;
696
697 if (xfs_compat_handlereq_copyin(&hreq, arg))
698 return -EFAULT;
699 return xfs_readlink_by_handle(filp, &hreq);
700 }
701 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
702 return xfs_compat_attrlist_by_handle(filp, arg);
703 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
704 return xfs_compat_attrmulti_by_handle(filp, arg);
705 case XFS_IOC_FSSETDM_BY_HANDLE_32:
706 return xfs_compat_fssetdm_by_handle(filp, arg);
707 default:
708 return -ENOIOCTLCMD;
709 }
710}