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Merge remote-tracking branches 'spi/fix/dw', 'spi/fix/orion', 'spi/fix/pl022', 'spi...
[deliverable/linux.git] / fs / xfs / xfs_ioctl32.c
CommitLineData
1da177e4 1/*
7b718769
NS		 2 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
1da177e4 4 *
7b718769
NS		 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
1da177e4
LT		 7 * published by the Free Software Foundation.
8 *
7b718769
NS		 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.
1da177e4 13 *
7b718769
NS		 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
1da177e4 17 */
1da177e4 18#include <linux/compat.h>
1da177e4 19#include <linux/ioctl.h>
62e194ec 20#include <linux/mount.h>
5a0e3ad6 21#include <linux/slab.h>
1da177e4 22#include <asm/uaccess.h>
1da177e4 23#include "xfs.h"
1da177e4 24#include "xfs_fs.h"
a4fbe6ab 25#include "xfs_format.h"
239880ef
DC		 26#include "xfs_log_format.h"
27#include "xfs_trans_resv.h"
faa63e95
MM		 28#include "xfs_sb.h"
29#include "xfs_ag.h"
faa63e95 30#include "xfs_mount.h"
faa63e95
MM		 31#include "xfs_inode.h"
32#include "xfs_itable.h"
33#include "xfs_error.h"
d5547f9f 34#include "xfs_fsops.h"
471d5910 35#include "xfs_alloc.h"
36#include "xfs_rtalloc.h"
ebeecd2b 37#include "xfs_attr.h"
d5547f9f 38#include "xfs_ioctl.h"
a8272ce0 39#include "xfs_ioctl32.h"
0b1b213f 40#include "xfs_trace.h"
1da177e4 41
526c420c
ES		 42#define _NATIVE_IOC(cmd, type) \
43 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
44
ffae263a 45#ifdef BROKEN_X86_ALIGNMENT
d5547f9f 46STATIC int
47xfs_compat_flock64_copyin(
48 xfs_flock64_t *bf,
49 compat_xfs_flock64_t __user *arg32)
526c420c 50{
d5547f9f 51 if (get_user(bf->l_type, &arg32->l_type) ||
52 get_user(bf->l_whence, &arg32->l_whence) ||
53 get_user(bf->l_start, &arg32->l_start) ||
54 get_user(bf->l_len, &arg32->l_len) ||
55 get_user(bf->l_sysid, &arg32->l_sysid) ||
56 get_user(bf->l_pid, &arg32->l_pid) ||
57 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
b474c7ae 58 return -EFAULT;
d5547f9f 59 return 0;
526c420c
ES		 60}
61
d5547f9f 62STATIC int
63xfs_compat_ioc_fsgeometry_v1(
64 struct xfs_mount *mp,
65 compat_xfs_fsop_geom_v1_t __user *arg32)
547e00c3 66{
d5547f9f 67 xfs_fsop_geom_t fsgeo;
68 int error;
547e00c3 69
d5547f9f 70 error = xfs_fs_geometry(mp, &fsgeo, 3);
71 if (error)
2451337d 72 return error;
d5547f9f 73 /* The 32-bit variant simply has some padding at the end */
74 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
b474c7ae 75 return -EFAULT;
d5547f9f 76 return 0;
547e00c3
MM		 77}
78
471d5910 79STATIC int
80xfs_compat_growfs_data_copyin(
81 struct xfs_growfs_data *in,
82 compat_xfs_growfs_data_t __user *arg32)
83{
84 if (get_user(in->newblocks, &arg32->newblocks) ||
85 get_user(in->imaxpct, &arg32->imaxpct))
b474c7ae 86 return -EFAULT;
471d5910 87 return 0;
88}
89
90STATIC int
91xfs_compat_growfs_rt_copyin(
92 struct xfs_growfs_rt *in,
93 compat_xfs_growfs_rt_t __user *arg32)
94{
95 if (get_user(in->newblocks, &arg32->newblocks) ||
96 get_user(in->extsize, &arg32->extsize))
b474c7ae 97 return -EFAULT;
471d5910 98 return 0;
99}
100
d5547f9f 101STATIC int
102xfs_inumbers_fmt_compat(
103 void __user *ubuffer,
549fa006 104 const struct xfs_inogrp *buffer,
d5547f9f 105 long count,
106 long *written)
faa63e95 107{
d5547f9f 108 compat_xfs_inogrp_t __user *p32 = ubuffer;
109 long i;
faa63e95
MM		 110
111 for (i = 0; i < count; i++) {
112 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
113 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
114 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
b474c7ae 115 return -EFAULT;
faa63e95
MM		 116 }
117 *written = count * sizeof(*p32);
118 return 0;
119}
120
1da177e4 121#else
faa63e95 122#define xfs_inumbers_fmt_compat xfs_inumbers_fmt
e5d412f1 123#endif /* BROKEN_X86_ALIGNMENT */
faa63e95 124
e94fc4a4 125STATIC int
126xfs_ioctl32_bstime_copyin(
127 xfs_bstime_t *bstime,
128 compat_xfs_bstime_t __user *bstime32)
129{
130 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
131
132 if (get_user(sec32, &bstime32->tv_sec) ||
133 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
b474c7ae 134 return -EFAULT;
e94fc4a4 135 bstime->tv_sec = sec32;
136 return 0;
137}
138
139/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
140STATIC int
141xfs_ioctl32_bstat_copyin(
142 xfs_bstat_t *bstat,
143 compat_xfs_bstat_t __user *bstat32)
144{
145 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
146 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
147 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
148 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
149 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
150 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
151 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
152 get_user(bstat->bs_size, &bstat32->bs_size) ||
153 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
154 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
155 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
156 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
157 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
158 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
159 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
160 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
6743099c
AM		 161 get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
162 get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
b1d6cc02 163 get_user(bstat->bs_forkoff, &bstat32->bs_forkoff) ||
e94fc4a4 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))
b474c7ae 167 return -EFAULT;
e94fc4a4 168 return 0;
169}
170
faa63e95
MM		 171/* XFS_IOC_FSBULKSTAT and friends */
172
d5547f9f 173STATIC int
174xfs_bstime_store_compat(
175 compat_xfs_bstime_t __user *p32,
176 const xfs_bstime_t *p)
faa63e95 177{
d5547f9f 178 __s32 sec32;
faa63e95
MM		 179
180 sec32 = p->tv_sec;
181 if (put_user(sec32, &p32->tv_sec) ||
182 put_user(p->tv_nsec, &p32->tv_nsec))
b474c7ae 183 return -EFAULT;
faa63e95
MM		 184 return 0;
185}
186
65fbaf24 187/* Return 0 on success or positive error (to xfs_bulkstat()) */
d5547f9f 188STATIC int
189xfs_bulkstat_one_fmt_compat(
faa63e95 190 void __user *ubuffer,
65fbaf24 191 int ubsize,
192 int *ubused,
faa63e95
MM		 193 const xfs_bstat_t *buffer)
194{
d5547f9f 195 compat_xfs_bstat_t __user *p32 = ubuffer;
faa63e95 196
65fbaf24 197 if (ubsize < sizeof(*p32))
2451337d 198 return -ENOMEM;
65fbaf24 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) ||
faa63e95
MM		 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) ||
65fbaf24 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) ||
6743099c 217 put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) ||
b1d6cc02 218 put_user(buffer->bs_forkoff, &p32->bs_forkoff) ||
65fbaf24 219 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
220 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
faa63e95 221 put_user(buffer->bs_aextents, &p32->bs_aextents))
2451337d 222 return -EFAULT;
65fbaf24 223 if (ubused)
224 *ubused = sizeof(*p32);
225 return 0;
faa63e95
MM		 226}
227
2ee4fa5c 228STATIC int
229xfs_bulkstat_one_compat(
230 xfs_mount_t *mp, /* mount point for filesystem */
231 xfs_ino_t ino, /* inode number to get data for */
232 void __user *buffer, /* buffer to place output in */
233 int ubsize, /* size of buffer */
2ee4fa5c 234 int *ubused, /* bytes used by me */
2ee4fa5c 235 int *stat) /* BULKSTAT_RV_... */
236{
237 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
7b6259e7 238 xfs_bulkstat_one_fmt_compat,
7dce11db 239 ubused, stat);
2ee4fa5c 240}
241
faa63e95
MM		 242/* copied from xfs_ioctl.c */
243STATIC int
2ee4fa5c 244xfs_compat_ioc_bulkstat(
245 xfs_mount_t *mp,
246 unsigned int cmd,
247 compat_xfs_fsop_bulkreq_t __user *p32)
1da177e4 248{
1da177e4 249 u32 addr;
faa63e95
MM		 250 xfs_fsop_bulkreq_t bulkreq;
251 int count; /* # of records returned */
252 xfs_ino_t inlast; /* last inode number */
253 int done;
254 int error;
255
256 /* done = 1 if there are more stats to get and if bulkstat */
257 /* should be called again (unused here, but used in dmapi) */
1da177e4 258
faa63e95 259 if (!capable(CAP_SYS_ADMIN))
b474c7ae 260 return -EPERM;
faa63e95
MM		 261
262 if (XFS_FORCED_SHUTDOWN(mp))
b474c7ae 263 return -EIO;
faa63e95
MM		 264
265 if (get_user(addr, &p32->lastip))
b474c7ae 266 return -EFAULT;
faa63e95
MM		 267 bulkreq.lastip = compat_ptr(addr);
268 if (get_user(bulkreq.icount, &p32->icount) ||
269 get_user(addr, &p32->ubuffer))
b474c7ae 270 return -EFAULT;
faa63e95
MM		 271 bulkreq.ubuffer = compat_ptr(addr);
272 if (get_user(addr, &p32->ocount))
b474c7ae 273 return -EFAULT;
faa63e95 274 bulkreq.ocount = compat_ptr(addr);
1da177e4 275
faa63e95 276 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
b474c7ae 277 return -EFAULT;
faa63e95
MM		 278
279 if ((count = bulkreq.icount) <= 0)
b474c7ae 280 return -EINVAL;
faa63e95 281
cd57e594 282 if (bulkreq.ubuffer == NULL)
b474c7ae 283 return -EINVAL;
cd57e594 284
af819d27 285 if (cmd == XFS_IOC_FSINUMBERS_32) {
faa63e95
MM		 286 error = xfs_inumbers(mp, &inlast, &count,
287 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
af819d27 288 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
289 int res;
290
291 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
8d2a5e6e 292 sizeof(compat_xfs_bstat_t), NULL, &res);
af819d27 293 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
faa63e95 294 error = xfs_bulkstat(mp, &inlast, &count,
7dce11db
CH		 295 xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
296 bulkreq.ubuffer, &done);
af819d27 297 } else
2451337d 298 error = -EINVAL;
faa63e95 299 if (error)
2451337d 300 return error;
faa63e95
MM		 301
302 if (bulkreq.ocount != NULL) {
303 if (copy_to_user(bulkreq.lastip, &inlast,
304 sizeof(xfs_ino_t)))
b474c7ae 305 return -EFAULT;
faa63e95
MM		 306
307 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
b474c7ae 308 return -EFAULT;
faa63e95
MM		 309 }
310
311 return 0;
1da177e4 312}
faa63e95 313
d5547f9f 314STATIC int
315xfs_compat_handlereq_copyin(
316 xfs_fsop_handlereq_t *hreq,
317 compat_xfs_fsop_handlereq_t __user *arg32)
1fa503df 318{
d5547f9f 319 compat_xfs_fsop_handlereq_t hreq32;
320
321 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
b474c7ae 322 return -EFAULT;
d5547f9f 323
324 hreq->fd = hreq32.fd;
325 hreq->path = compat_ptr(hreq32.path);
326 hreq->oflags = hreq32.oflags;
327 hreq->ihandle = compat_ptr(hreq32.ihandle);
328 hreq->ihandlen = hreq32.ihandlen;
329 hreq->ohandle = compat_ptr(hreq32.ohandle);
330 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
331
332 return 0;
1fa503df
MM		 333}
334
ab596ad8
CH		 335STATIC struct dentry *
336xfs_compat_handlereq_to_dentry(
337 struct file *parfilp,
338 compat_xfs_fsop_handlereq_t *hreq)
ebeecd2b 339{
ab596ad8
CH		 340 return xfs_handle_to_dentry(parfilp,
341 compat_ptr(hreq->ihandle), hreq->ihandlen);
ebeecd2b 342}
343
344STATIC int
345xfs_compat_attrlist_by_handle(
ab596ad8
CH		 346 struct file *parfilp,
347 void __user *arg)
ebeecd2b 348{
349 int error;
350 attrlist_cursor_kern_t *cursor;
351 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
ab596ad8 352 struct dentry *dentry;
ebeecd2b 353 char *kbuf;
354
355 if (!capable(CAP_SYS_ADMIN))
b474c7ae 356 return -EPERM;
ebeecd2b 357 if (copy_from_user(&al_hreq, arg,
358 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
b474c7ae 359 return -EFAULT;
31978b5c
DC		 360 if (al_hreq.buflen < sizeof(struct attrlist) ||
361 al_hreq.buflen > XATTR_LIST_MAX)
b474c7ae 362 return -EINVAL;
ebeecd2b 363
364 /*
365 * Reject flags, only allow namespaces.
366 */
367 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
b474c7ae 368 return -EINVAL;
ebeecd2b 369
ab596ad8
CH		 370 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
371 if (IS_ERR(dentry))
372 return PTR_ERR(dentry);
ebeecd2b 373
ab596ad8 374 error = -ENOMEM;
fdd3ccee
DC		 375 kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
376 if (!kbuf)
377 goto out_dput;
ebeecd2b 378
379 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
2451337d 380 error = xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
ebeecd2b 381 al_hreq.flags, cursor);
382 if (error)
383 goto out_kfree;
384
385 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
386 error = -EFAULT;
387
fdd3ccee
DC		 388out_kfree:
389 kmem_free(kbuf);
390out_dput:
ab596ad8
CH		 391 dput(dentry);
392 return error;
ebeecd2b 393}
394
28750975 395STATIC int
396xfs_compat_attrmulti_by_handle(
ab596ad8
CH		 397 struct file *parfilp,
398 void __user *arg)
28750975 399{
400 int error;
401 compat_xfs_attr_multiop_t *ops;
402 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
ab596ad8 403 struct dentry *dentry;
28750975 404 unsigned int i, size;
a9273ca5 405 unsigned char *attr_name;
28750975 406
407 if (!capable(CAP_SYS_ADMIN))
b474c7ae 408 return -EPERM;
28750975 409 if (copy_from_user(&am_hreq, arg,
410 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
b474c7ae 411 return -EFAULT;
28750975 412
fda168c2
ZW		 413 /* overflow check */
414 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
415 return -E2BIG;
416
ab596ad8
CH		 417 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
418 if (IS_ERR(dentry))
419 return PTR_ERR(dentry);
28750975 420
2451337d 421 error = -E2BIG;
28750975 422 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
423 if (!size || size > 16 * PAGE_SIZE)
ab596ad8 424 goto out_dput;
28750975 425
0e639bde
LZ		 426 ops = memdup_user(compat_ptr(am_hreq.ops), size);
427 if (IS_ERR(ops)) {
b28fd7b5 428 error = -PTR_ERR(ops);
ab596ad8 429 goto out_dput;
0e639bde 430 }
28750975 431
2451337d 432 error = -ENOMEM;
28750975 433 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
434 if (!attr_name)
435 goto out_kfree_ops;
436
28750975 437 error = 0;
438 for (i = 0; i < am_hreq.opcount; i++) {
a9273ca5 439 ops[i].am_error = strncpy_from_user((char *)attr_name,
28750975 440 compat_ptr(ops[i].am_attrname),
441 MAXNAMELEN);
442 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
2451337d 443 error = -ERANGE;
28750975 444 if (ops[i].am_error < 0)
445 break;
446
447 switch (ops[i].am_opcode) {
448 case ATTR_OP_GET:
ab596ad8
CH		 449 ops[i].am_error = xfs_attrmulti_attr_get(
450 dentry->d_inode, attr_name,
28750975 451 compat_ptr(ops[i].am_attrvalue),
452 &ops[i].am_length, ops[i].am_flags);
453 break;
454 case ATTR_OP_SET:
a561be71 455 ops[i].am_error = mnt_want_write_file(parfilp);
62e194ec
CH		 456 if (ops[i].am_error)
457 break;
ab596ad8
CH		 458 ops[i].am_error = xfs_attrmulti_attr_set(
459 dentry->d_inode, attr_name,
28750975 460 compat_ptr(ops[i].am_attrvalue),
461 ops[i].am_length, ops[i].am_flags);
2a79f17e 462 mnt_drop_write_file(parfilp);
28750975 463 break;
464 case ATTR_OP_REMOVE:
a561be71 465 ops[i].am_error = mnt_want_write_file(parfilp);
62e194ec
CH		 466 if (ops[i].am_error)
467 break;
ab596ad8
CH		 468 ops[i].am_error = xfs_attrmulti_attr_remove(
469 dentry->d_inode, attr_name,
470 ops[i].am_flags);
2a79f17e 471 mnt_drop_write_file(parfilp);
28750975 472 break;
473 default:
2451337d 474 ops[i].am_error = -EINVAL;
28750975 475 }
476 }
477
478 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
2451337d 479 error = -EFAULT;
28750975 480
481 kfree(attr_name);
482 out_kfree_ops:
483 kfree(ops);
ab596ad8
CH		 484 out_dput:
485 dput(dentry);
2451337d 486 return error;
28750975 487}
488
710d62aa 489STATIC int
490xfs_compat_fssetdm_by_handle(
ab596ad8
CH		 491 struct file *parfilp,
492 void __user *arg)
710d62aa 493{
494 int error;
495 struct fsdmidata fsd;
496 compat_xfs_fsop_setdm_handlereq_t dmhreq;
ab596ad8 497 struct dentry *dentry;
710d62aa 498
499 if (!capable(CAP_MKNOD))
b474c7ae 500 return -EPERM;
710d62aa 501 if (copy_from_user(&dmhreq, arg,
502 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
b474c7ae 503 return -EFAULT;
710d62aa 504
ab596ad8
CH		 505 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
506 if (IS_ERR(dentry))
507 return PTR_ERR(dentry);
710d62aa 508
ab596ad8 509 if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
b474c7ae 510 error = -EPERM;
710d62aa 511 goto out;
512 }
513
514 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
b474c7ae 515 error = -EFAULT;
710d62aa 516 goto out;
517 }
518
2451337d 519 error = xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
710d62aa 520 fsd.fsd_dmstate);
521
522out:
ab596ad8 523 dput(dentry);
710d62aa 524 return error;
525}
526
4d4be482
CH		 527long
528xfs_file_compat_ioctl(
529 struct file *filp,
530 unsigned cmd,
531 unsigned long p)
1da177e4 532{
496ad9aa 533 struct inode *inode = file_inode(filp);
4d4be482
CH		 534 struct xfs_inode *ip = XFS_I(inode);
535 struct xfs_mount *mp = ip->i_mount;
536 void __user *arg = (void __user *)p;
537 int ioflags = 0;
538 int error;
539
540 if (filp->f_mode & FMODE_NOCMTIME)
b92cc59f 541 ioflags |= XFS_IO_INVIS;
4d4be482 542
cca28fb8 543 trace_xfs_file_compat_ioctl(ip);
1da177e4
LT		 544
545 switch (cmd) {
e5d412f1 546 /* No size or alignment issues on any arch */
1da177e4 547 case XFS_IOC_DIOINFO:
1da177e4 548 case XFS_IOC_FSGEOMETRY:
1da177e4
LT		 549 case XFS_IOC_FSGETXATTR:
550 case XFS_IOC_FSSETXATTR:
551 case XFS_IOC_FSGETXATTRA:
552 case XFS_IOC_FSSETDM:
553 case XFS_IOC_GETBMAP:
554 case XFS_IOC_GETBMAPA:
555 case XFS_IOC_GETBMAPX:
1da177e4
LT		 556 case XFS_IOC_FSCOUNTS:
557 case XFS_IOC_SET_RESBLKS:
558 case XFS_IOC_GET_RESBLKS:
1da177e4 559 case XFS_IOC_FSGROWFSLOG:
1da177e4
LT		 560 case XFS_IOC_GOINGDOWN:
561 case XFS_IOC_ERROR_INJECTION:
562 case XFS_IOC_ERROR_CLEARALL:
4d4be482 563 return xfs_file_ioctl(filp, cmd, p);
e5d412f1 564#ifndef BROKEN_X86_ALIGNMENT
565 /* These are handled fine if no alignment issues */
566 case XFS_IOC_ALLOCSP:
567 case XFS_IOC_FREESP:
568 case XFS_IOC_RESVSP:
569 case XFS_IOC_UNRESVSP:
570 case XFS_IOC_ALLOCSP64:
571 case XFS_IOC_FREESP64:
572 case XFS_IOC_RESVSP64:
573 case XFS_IOC_UNRESVSP64:
574 case XFS_IOC_FSGEOMETRY_V1:
575 case XFS_IOC_FSGROWFSDATA:
576 case XFS_IOC_FSGROWFSRT:
44722352 577 case XFS_IOC_ZERO_RANGE:
4d4be482 578 return xfs_file_ioctl(filp, cmd, p);
e5d412f1 579#else
526c420c
ES		 580 case XFS_IOC_ALLOCSP_32:
581 case XFS_IOC_FREESP_32:
582 case XFS_IOC_ALLOCSP64_32:
583 case XFS_IOC_FREESP64_32:
584 case XFS_IOC_RESVSP_32:
585 case XFS_IOC_UNRESVSP_32:
586 case XFS_IOC_RESVSP64_32:
8c1fdd0b
CH		 587 case XFS_IOC_UNRESVSP64_32:
588 case XFS_IOC_ZERO_RANGE_32: {
d5547f9f 589 struct xfs_flock64 bf;
590
591 if (xfs_compat_flock64_copyin(&bf, arg))
b474c7ae 592 return -EFAULT;
526c420c 593 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
d5547f9f 594 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
595 }
547e00c3 596 case XFS_IOC_FSGEOMETRY_V1_32:
d5547f9f 597 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
471d5910 598 case XFS_IOC_FSGROWFSDATA_32: {
599 struct xfs_growfs_data in;
600
601 if (xfs_compat_growfs_data_copyin(&in, arg))
b474c7ae 602 return -EFAULT;
d9457dc0
JK		 603 error = mnt_want_write_file(filp);
604 if (error)
605 return error;
471d5910 606 error = xfs_growfs_data(mp, &in);
d9457dc0 607 mnt_drop_write_file(filp);
2451337d 608 return error;
471d5910 609 }
610 case XFS_IOC_FSGROWFSRT_32: {
611 struct xfs_growfs_rt in;
612
613 if (xfs_compat_growfs_rt_copyin(&in, arg))
b474c7ae 614 return -EFAULT;
d9457dc0
JK		 615 error = mnt_want_write_file(filp);
616 if (error)
617 return error;
471d5910 618 error = xfs_growfs_rt(mp, &in);
d9457dc0 619 mnt_drop_write_file(filp);
2451337d 620 return error;
471d5910 621 }
1da177e4 622#endif
e5d412f1 623 /* long changes size, but xfs only copiese out 32 bits */
624 case XFS_IOC_GETXFLAGS_32:
625 case XFS_IOC_SETXFLAGS_32:
626 case XFS_IOC_GETVERSION_32:
627 cmd = _NATIVE_IOC(cmd, long);
4d4be482 628 return xfs_file_ioctl(filp, cmd, p);
3725867d 629 case XFS_IOC_SWAPEXT_32: {
e5d412f1 630 struct xfs_swapext sxp;
631 struct compat_xfs_swapext __user *sxu = arg;
632
633 /* Bulk copy in up to the sx_stat field, then copy bstat */
634 if (copy_from_user(&sxp, sxu,
635 offsetof(struct xfs_swapext, sx_stat)) ||
636 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
b474c7ae 637 return -EFAULT;
d9457dc0
JK		 638 error = mnt_want_write_file(filp);
639 if (error)
640 return error;
a133d952 641 error = xfs_ioc_swapext(&sxp);
d9457dc0 642 mnt_drop_write_file(filp);
2451337d 643 return error;
e5d412f1 644 }
faa63e95
MM		 645 case XFS_IOC_FSBULKSTAT_32:
646 case XFS_IOC_FSBULKSTAT_SINGLE_32:
647 case XFS_IOC_FSINUMBERS_32:
2ee4fa5c 648 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
1fa503df
MM		 649 case XFS_IOC_FD_TO_HANDLE_32:
650 case XFS_IOC_PATH_TO_HANDLE_32:
d5547f9f 651 case XFS_IOC_PATH_TO_FSHANDLE_32: {
652 struct xfs_fsop_handlereq hreq;
653
654 if (xfs_compat_handlereq_copyin(&hreq, arg))
b474c7ae 655 return -EFAULT;
1fa503df 656 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
d5547f9f 657 return xfs_find_handle(cmd, &hreq);
658 }
659 case XFS_IOC_OPEN_BY_HANDLE_32: {
660 struct xfs_fsop_handlereq hreq;
661
662 if (xfs_compat_handlereq_copyin(&hreq, arg))
b474c7ae 663 return -EFAULT;
ab596ad8 664 return xfs_open_by_handle(filp, &hreq);
d5547f9f 665 }
666 case XFS_IOC_READLINK_BY_HANDLE_32: {
667 struct xfs_fsop_handlereq hreq;
668
669 if (xfs_compat_handlereq_copyin(&hreq, arg))
b474c7ae 670 return -EFAULT;
ab596ad8 671 return xfs_readlink_by_handle(filp, &hreq);
d5547f9f 672 }
ebeecd2b 673 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
ab596ad8 674 return xfs_compat_attrlist_by_handle(filp, arg);
28750975 675 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
ab596ad8 676 return xfs_compat_attrmulti_by_handle(filp, arg);
710d62aa 677 case XFS_IOC_FSSETDM_BY_HANDLE_32:
ab596ad8 678 return xfs_compat_fssetdm_by_handle(filp, arg);
1da177e4 679 default:
b474c7ae 680 return -ENOIOCTLCMD;
1da177e4 681 }
1da177e4 682}
Linux kernel - Deliverables
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