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ALSA: seq: Fix missing NULL check at remove_events ioctl
[linux/fpc-iii.git] / fs / xfs / xfs_ioctl32.c
blob68799d7f02cc74c8252f5f080868f3be3d344e32
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_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
50 STATIC int
51 xfs_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
66 STATIC int
67 xfs_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 /* The 32-bit variant simply has some padding at the end */
78 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
79 return -XFS_ERROR(EFAULT);
80 return 0;
81 }
82
83 STATIC int
84 xfs_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
94 STATIC int
95 xfs_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
105 STATIC int
106 xfs_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 /* BROKEN_X86_ALIGNMENT */
128
129 STATIC int
130 xfs_ioctl32_bstime_copyin(
131 xfs_bstime_t *bstime,
132 compat_xfs_bstime_t __user *bstime32)
133 {
134 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
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 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
144 STATIC int
145 xfs_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 /* XFS_IOC_FSBULKSTAT and friends */
175
176 STATIC int
177 xfs_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 /* Return 0 on success or positive error (to xfs_bulkstat()) */
191 STATIC int
192 xfs_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
230 STATIC int
231 xfs_bulkstat_one_compat(
232 xfs_mount_t *mp, /* mount point for filesystem */
233 xfs_ino_t ino, /* inode number to get data for */
234 void __user *buffer, /* buffer to place output in */
235 int ubsize, /* size of buffer */
236 int *ubused, /* bytes used by me */
237 int *stat) /* BULKSTAT_RV_... */
238 {
239 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
240 xfs_bulkstat_one_fmt_compat,
241 ubused, stat);
242 }
243
244 /* copied from xfs_ioctl.c */
245 STATIC int
246 xfs_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; /* # of records returned */
254 xfs_ino_t inlast; /* last inode number */
255 int done;
256 int error;
257
258 /* done = 1 if there are more stats to get and if bulkstat */
259 /* should be called again (unused here, but used in dmapi) */
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
316 STATIC int
317 xfs_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
337 STATIC struct dentry *
338 xfs_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
346 STATIC int
347 xfs_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 < sizeof(struct attrlist) ||
363 al_hreq.buflen > XATTR_LIST_MAX)
364 return -XFS_ERROR(EINVAL);
365
366 /*
367 * Reject flags, only allow namespaces.
368 */
369 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
370 return -XFS_ERROR(EINVAL);
371
372 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
373 if (IS_ERR(dentry))
374 return PTR_ERR(dentry);
375
376 error = -ENOMEM;
377 kbuf = kmem_zalloc(al_hreq.buflen, KM_SLEEP | KM_MAYFAIL);
378 if (!kbuf) {
379 kbuf = kmem_zalloc_large(al_hreq.buflen);
380 if (!kbuf)
381 goto out_dput;
382 }
383
384 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
385 error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
386 al_hreq.flags, cursor);
387 if (error)
388 goto out_kfree;
389
390 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
391 error = -EFAULT;
392
393 out_kfree:
394 if (is_vmalloc_addr(kbuf))
395 kmem_free_large(kbuf);
396 else
397 kmem_free(kbuf);
398 out_dput:
399 dput(dentry);
400 return error;
401 }
402
403 STATIC int
404 xfs_compat_attrmulti_by_handle(
405 struct file *parfilp,
406 void __user *arg)
407 {
408 int error;
409 compat_xfs_attr_multiop_t *ops;
410 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
411 struct dentry *dentry;
412 unsigned int i, size;
413 unsigned char *attr_name;
414
415 if (!capable(CAP_SYS_ADMIN))
416 return -XFS_ERROR(EPERM);
417 if (copy_from_user(&am_hreq, arg,
418 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
419 return -XFS_ERROR(EFAULT);
420
421 /* overflow check */
422 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
423 return -E2BIG;
424
425 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
426 if (IS_ERR(dentry))
427 return PTR_ERR(dentry);
428
429 error = E2BIG;
430 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
431 if (!size || size > 16 * PAGE_SIZE)
432 goto out_dput;
433
434 ops = memdup_user(compat_ptr(am_hreq.ops), size);
435 if (IS_ERR(ops)) {
436 error = PTR_ERR(ops);
437 goto out_dput;
438 }
439
440 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
441 if (!attr_name)
442 goto out_kfree_ops;
443
444 error = 0;
445 for (i = 0; i < am_hreq.opcount; i++) {
446 ops[i].am_error = strncpy_from_user((char *)attr_name,
447 compat_ptr(ops[i].am_attrname),
448 MAXNAMELEN);
449 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
450 error = -ERANGE;
451 if (ops[i].am_error < 0)
452 break;
453
454 switch (ops[i].am_opcode) {
455 case ATTR_OP_GET:
456 ops[i].am_error = xfs_attrmulti_attr_get(
457 dentry->d_inode, attr_name,
458 compat_ptr(ops[i].am_attrvalue),
459 &ops[i].am_length, ops[i].am_flags);
460 break;
461 case ATTR_OP_SET:
462 ops[i].am_error = mnt_want_write_file(parfilp);
463 if (ops[i].am_error)
464 break;
465 ops[i].am_error = xfs_attrmulti_attr_set(
466 dentry->d_inode, attr_name,
467 compat_ptr(ops[i].am_attrvalue),
468 ops[i].am_length, ops[i].am_flags);
469 mnt_drop_write_file(parfilp);
470 break;
471 case ATTR_OP_REMOVE:
472 ops[i].am_error = mnt_want_write_file(parfilp);
473 if (ops[i].am_error)
474 break;
475 ops[i].am_error = xfs_attrmulti_attr_remove(
476 dentry->d_inode, attr_name,
477 ops[i].am_flags);
478 mnt_drop_write_file(parfilp);
479 break;
480 default:
481 ops[i].am_error = EINVAL;
482 }
483 }
484
485 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
486 error = XFS_ERROR(EFAULT);
487
488 kfree(attr_name);
489 out_kfree_ops:
490 kfree(ops);
491 out_dput:
492 dput(dentry);
493 return -error;
494 }
495
496 STATIC int
497 xfs_compat_fssetdm_by_handle(
498 struct file *parfilp,
499 void __user *arg)
500 {
501 int error;
502 struct fsdmidata fsd;
503 compat_xfs_fsop_setdm_handlereq_t dmhreq;
504 struct dentry *dentry;
505
506 if (!capable(CAP_MKNOD))
507 return -XFS_ERROR(EPERM);
508 if (copy_from_user(&dmhreq, arg,
509 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
510 return -XFS_ERROR(EFAULT);
511
512 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
513 if (IS_ERR(dentry))
514 return PTR_ERR(dentry);
515
516 if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
517 error = -XFS_ERROR(EPERM);
518 goto out;
519 }
520
521 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
522 error = -XFS_ERROR(EFAULT);
523 goto out;
524 }
525
526 error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
527 fsd.fsd_dmstate);
528
529 out:
530 dput(dentry);
531 return error;
532 }
533
534 long
535 xfs_file_compat_ioctl(
536 struct file *filp,
537 unsigned cmd,
538 unsigned long p)
539 {
540 struct inode *inode = file_inode(filp);
541 struct xfs_inode *ip = XFS_I(inode);
542 struct xfs_mount *mp = ip->i_mount;
543 void __user *arg = (void __user *)p;
544 int ioflags = 0;
545 int error;
546
547 if (filp->f_mode & FMODE_NOCMTIME)
548 ioflags |= IO_INVIS;
549
550 trace_xfs_file_compat_ioctl(ip);
551
552 switch (cmd) {
553 /* No size or alignment issues on any arch */
554 case XFS_IOC_DIOINFO:
555 case XFS_IOC_FSGEOMETRY:
556 case XFS_IOC_FSGETXATTR:
557 case XFS_IOC_FSSETXATTR:
558 case XFS_IOC_FSGETXATTRA:
559 case XFS_IOC_FSSETDM:
560 case XFS_IOC_GETBMAP:
561 case XFS_IOC_GETBMAPA:
562 case XFS_IOC_GETBMAPX:
563 case XFS_IOC_FSCOUNTS:
564 case XFS_IOC_SET_RESBLKS:
565 case XFS_IOC_GET_RESBLKS:
566 case XFS_IOC_FSGROWFSLOG:
567 case XFS_IOC_GOINGDOWN:
568 case XFS_IOC_ERROR_INJECTION:
569 case XFS_IOC_ERROR_CLEARALL:
570 return xfs_file_ioctl(filp, cmd, p);
571 #ifndef BROKEN_X86_ALIGNMENT
572 /* These are handled fine if no alignment issues */
573 case XFS_IOC_ALLOCSP:
574 case XFS_IOC_FREESP:
575 case XFS_IOC_RESVSP:
576 case XFS_IOC_UNRESVSP:
577 case XFS_IOC_ALLOCSP64:
578 case XFS_IOC_FREESP64:
579 case XFS_IOC_RESVSP64:
580 case XFS_IOC_UNRESVSP64:
581 case XFS_IOC_FSGEOMETRY_V1:
582 case XFS_IOC_FSGROWFSDATA:
583 case XFS_IOC_FSGROWFSRT:
584 case XFS_IOC_ZERO_RANGE:
585 return xfs_file_ioctl(filp, cmd, p);
586 #else
587 case XFS_IOC_ALLOCSP_32:
588 case XFS_IOC_FREESP_32:
589 case XFS_IOC_ALLOCSP64_32:
590 case XFS_IOC_FREESP64_32:
591 case XFS_IOC_RESVSP_32:
592 case XFS_IOC_UNRESVSP_32:
593 case XFS_IOC_RESVSP64_32:
594 case XFS_IOC_UNRESVSP64_32:
595 case XFS_IOC_ZERO_RANGE_32: {
596 struct xfs_flock64 bf;
597
598 if (xfs_compat_flock64_copyin(&bf, arg))
599 return -XFS_ERROR(EFAULT);
600 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
601 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
602 }
603 case XFS_IOC_FSGEOMETRY_V1_32:
604 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
605 case XFS_IOC_FSGROWFSDATA_32: {
606 struct xfs_growfs_data in;
607
608 if (xfs_compat_growfs_data_copyin(&in, arg))
609 return -XFS_ERROR(EFAULT);
610 error = mnt_want_write_file(filp);
611 if (error)
612 return error;
613 error = xfs_growfs_data(mp, &in);
614 mnt_drop_write_file(filp);
615 return -error;
616 }
617 case XFS_IOC_FSGROWFSRT_32: {
618 struct xfs_growfs_rt in;
619
620 if (xfs_compat_growfs_rt_copyin(&in, arg))
621 return -XFS_ERROR(EFAULT);
622 error = mnt_want_write_file(filp);
623 if (error)
624 return error;
625 error = xfs_growfs_rt(mp, &in);
626 mnt_drop_write_file(filp);
627 return -error;
628 }
629 #endif
630 /* long changes size, but xfs only copiese out 32 bits */
631 case XFS_IOC_GETXFLAGS_32:
632 case XFS_IOC_SETXFLAGS_32:
633 case XFS_IOC_GETVERSION_32:
634 cmd = _NATIVE_IOC(cmd, long);
635 return xfs_file_ioctl(filp, cmd, p);
636 case XFS_IOC_SWAPEXT_32: {
637 struct xfs_swapext sxp;
638 struct compat_xfs_swapext __user *sxu = arg;
639
640 /* Bulk copy in up to the sx_stat field, then copy bstat */
641 if (copy_from_user(&sxp, sxu,
642 offsetof(struct xfs_swapext, sx_stat)) ||
643 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
644 return -XFS_ERROR(EFAULT);
645 error = mnt_want_write_file(filp);
646 if (error)
647 return error;
648 error = xfs_swapext(&sxp);
649 mnt_drop_write_file(filp);
650 return -error;
651 }
652 case XFS_IOC_FSBULKSTAT_32:
653 case XFS_IOC_FSBULKSTAT_SINGLE_32:
654 case XFS_IOC_FSINUMBERS_32:
655 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
656 case XFS_IOC_FD_TO_HANDLE_32:
657 case XFS_IOC_PATH_TO_HANDLE_32:
658 case XFS_IOC_PATH_TO_FSHANDLE_32: {
659 struct xfs_fsop_handlereq hreq;
660
661 if (xfs_compat_handlereq_copyin(&hreq, arg))
662 return -XFS_ERROR(EFAULT);
663 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
664 return xfs_find_handle(cmd, &hreq);
665 }
666 case XFS_IOC_OPEN_BY_HANDLE_32: {
667 struct xfs_fsop_handlereq hreq;
668
669 if (xfs_compat_handlereq_copyin(&hreq, arg))
670 return -XFS_ERROR(EFAULT);
671 return xfs_open_by_handle(filp, &hreq);
672 }
673 case XFS_IOC_READLINK_BY_HANDLE_32: {
674 struct xfs_fsop_handlereq hreq;
675
676 if (xfs_compat_handlereq_copyin(&hreq, arg))
677 return -XFS_ERROR(EFAULT);
678 return xfs_readlink_by_handle(filp, &hreq);
679 }
680 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
681 return xfs_compat_attrlist_by_handle(filp, arg);
682 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
683 return xfs_compat_attrmulti_by_handle(filp, arg);
684 case XFS_IOC_FSSETDM_BY_HANDLE_32:
685 return xfs_compat_fssetdm_by_handle(filp, arg);
686 default:
687 return -XFS_ERROR(ENOIOCTLCMD);
688 }
689 }
Linux with added FPC-III support