]> bbs.cooldavid.org Git - net-next-2.6.git/blame - fs/xfs/linux-2.6/xfs_ioctl32.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
xps: Transmit Packet Steering
[net-next-2.6.git] / fs / xfs / linux-2.6 / 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"
faa63e95
MM		 25#include "xfs_bit.h"
26#include "xfs_log.h"
27#include "xfs_inum.h"
28#include "xfs_trans.h"
29#include "xfs_sb.h"
30#include "xfs_ag.h"
faa63e95
MM		 31#include "xfs_mount.h"
32#include "xfs_bmap_btree.h"
1da177e4 33#include "xfs_vnode.h"
faa63e95
MM		 34#include "xfs_dinode.h"
35#include "xfs_inode.h"
36#include "xfs_itable.h"
37#include "xfs_error.h"
1da177e4 38#include "xfs_dfrag.h"
739bfb2a 39#include "xfs_vnodeops.h"
d5547f9f 40#include "xfs_fsops.h"
471d5910 41#include "xfs_alloc.h"
42#include "xfs_rtalloc.h"
ebeecd2b 43#include "xfs_attr.h"
d5547f9f 44#include "xfs_ioctl.h"
a8272ce0 45#include "xfs_ioctl32.h"
0b1b213f 46#include "xfs_trace.h"
1da177e4 47
526c420c
ES		 48#define _NATIVE_IOC(cmd, type) \
49 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
50
ffae263a 51#ifdef BROKEN_X86_ALIGNMENT
d5547f9f 52STATIC int
53xfs_compat_flock64_copyin(
54 xfs_flock64_t *bf,
55 compat_xfs_flock64_t __user *arg32)
526c420c 56{
d5547f9f 57 if (get_user(bf->l_type, &arg32->l_type) ||
58 get_user(bf->l_whence, &arg32->l_whence) ||
59 get_user(bf->l_start, &arg32->l_start) ||
60 get_user(bf->l_len, &arg32->l_len) ||
61 get_user(bf->l_sysid, &arg32->l_sysid) ||
62 get_user(bf->l_pid, &arg32->l_pid) ||
63 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
64 return -XFS_ERROR(EFAULT);
65 return 0;
526c420c
ES		 66}
67
d5547f9f 68STATIC int
69xfs_compat_ioc_fsgeometry_v1(
70 struct xfs_mount *mp,
71 compat_xfs_fsop_geom_v1_t __user *arg32)
547e00c3 72{
d5547f9f 73 xfs_fsop_geom_t fsgeo;
74 int error;
547e00c3 75
d5547f9f 76 error = xfs_fs_geometry(mp, &fsgeo, 3);
77 if (error)
78 return -error;
79 /* The 32-bit variant simply has some padding at the end */
80 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
81 return -XFS_ERROR(EFAULT);
82 return 0;
547e00c3
MM		 83}
84
471d5910 85STATIC int
86xfs_compat_growfs_data_copyin(
87 struct xfs_growfs_data *in,
88 compat_xfs_growfs_data_t __user *arg32)
89{
90 if (get_user(in->newblocks, &arg32->newblocks) ||
91 get_user(in->imaxpct, &arg32->imaxpct))
92 return -XFS_ERROR(EFAULT);
93 return 0;
94}
95
96STATIC int
97xfs_compat_growfs_rt_copyin(
98 struct xfs_growfs_rt *in,
99 compat_xfs_growfs_rt_t __user *arg32)
100{
101 if (get_user(in->newblocks, &arg32->newblocks) ||
102 get_user(in->extsize, &arg32->extsize))
103 return -XFS_ERROR(EFAULT);
104 return 0;
105}
106
d5547f9f 107STATIC int
108xfs_inumbers_fmt_compat(
109 void __user *ubuffer,
110 const xfs_inogrp_t *buffer,
111 long count,
112 long *written)
faa63e95 113{
d5547f9f 114 compat_xfs_inogrp_t __user *p32 = ubuffer;
115 long i;
faa63e95
MM		 116
117 for (i = 0; i < count; i++) {
118 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
119 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
120 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
d5547f9f 121 return -XFS_ERROR(EFAULT);
faa63e95
MM		 122 }
123 *written = count * sizeof(*p32);
124 return 0;
125}
126
1da177e4 127#else
faa63e95 128#define xfs_inumbers_fmt_compat xfs_inumbers_fmt
e5d412f1 129#endif /* BROKEN_X86_ALIGNMENT */
faa63e95 130
e94fc4a4 131STATIC int
132xfs_ioctl32_bstime_copyin(
133 xfs_bstime_t *bstime,
134 compat_xfs_bstime_t __user *bstime32)
135{
136 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
137
138 if (get_user(sec32, &bstime32->tv_sec) ||
139 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
140 return -XFS_ERROR(EFAULT);
141 bstime->tv_sec = sec32;
142 return 0;
143}
144
145/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
146STATIC int
147xfs_ioctl32_bstat_copyin(
148 xfs_bstat_t *bstat,
149 compat_xfs_bstat_t __user *bstat32)
150{
151 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
152 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
153 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
154 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
155 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
156 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
157 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
158 get_user(bstat->bs_size, &bstat32->bs_size) ||
159 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
160 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
161 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
162 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
163 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
164 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
165 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
166 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
6743099c
AM		 167 get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
168 get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
e94fc4a4 169 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
170 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
171 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
172 return -XFS_ERROR(EFAULT);
173 return 0;
174}
175
faa63e95
MM		 176/* XFS_IOC_FSBULKSTAT and friends */
177
d5547f9f 178STATIC int
179xfs_bstime_store_compat(
180 compat_xfs_bstime_t __user *p32,
181 const xfs_bstime_t *p)
faa63e95 182{
d5547f9f 183 __s32 sec32;
faa63e95
MM		 184
185 sec32 = p->tv_sec;
186 if (put_user(sec32, &p32->tv_sec) ||
187 put_user(p->tv_nsec, &p32->tv_nsec))
d5547f9f 188 return -XFS_ERROR(EFAULT);
faa63e95
MM		 189 return 0;
190}
191
65fbaf24 192/* Return 0 on success or positive error (to xfs_bulkstat()) */
d5547f9f 193STATIC int
194xfs_bulkstat_one_fmt_compat(
faa63e95 195 void __user *ubuffer,
65fbaf24 196 int ubsize,
197 int *ubused,
faa63e95
MM		 198 const xfs_bstat_t *buffer)
199{
d5547f9f 200 compat_xfs_bstat_t __user *p32 = ubuffer;
faa63e95 201
65fbaf24 202 if (ubsize < sizeof(*p32))
203 return XFS_ERROR(ENOMEM);
204
205 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
206 put_user(buffer->bs_mode, &p32->bs_mode) ||
207 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
208 put_user(buffer->bs_uid, &p32->bs_uid) ||
209 put_user(buffer->bs_gid, &p32->bs_gid) ||
210 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
211 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
212 put_user(buffer->bs_size, &p32->bs_size) ||
faa63e95
MM		 213 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
214 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
215 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
65fbaf24 216 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
217 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
218 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
219 put_user(buffer->bs_extents, &p32->bs_extents) ||
220 put_user(buffer->bs_gen, &p32->bs_gen) ||
221 put_user(buffer->bs_projid, &p32->bs_projid) ||
6743099c 222 put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) ||
65fbaf24 223 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
224 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
faa63e95 225 put_user(buffer->bs_aextents, &p32->bs_aextents))
65fbaf24 226 return XFS_ERROR(EFAULT);
227 if (ubused)
228 *ubused = sizeof(*p32);
229 return 0;
faa63e95
MM		 230}
231
2ee4fa5c 232STATIC int
233xfs_bulkstat_one_compat(
234 xfs_mount_t *mp, /* mount point for filesystem */
235 xfs_ino_t ino, /* inode number to get data for */
236 void __user *buffer, /* buffer to place output in */
237 int ubsize, /* size of buffer */
2ee4fa5c 238 int *ubused, /* bytes used by me */
2ee4fa5c 239 int *stat) /* BULKSTAT_RV_... */
240{
241 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
7b6259e7 242 xfs_bulkstat_one_fmt_compat,
7dce11db 243 ubused, stat);
2ee4fa5c 244}
245
faa63e95
MM		 246/* copied from xfs_ioctl.c */
247STATIC int
2ee4fa5c 248xfs_compat_ioc_bulkstat(
249 xfs_mount_t *mp,
250 unsigned int cmd,
251 compat_xfs_fsop_bulkreq_t __user *p32)
1da177e4 252{
1da177e4 253 u32 addr;
faa63e95
MM		 254 xfs_fsop_bulkreq_t bulkreq;
255 int count; /* # of records returned */
256 xfs_ino_t inlast; /* last inode number */
257 int done;
258 int error;
259
260 /* done = 1 if there are more stats to get and if bulkstat */
261 /* should be called again (unused here, but used in dmapi) */
1da177e4 262
faa63e95 263 if (!capable(CAP_SYS_ADMIN))
d5547f9f 264 return -XFS_ERROR(EPERM);
faa63e95
MM		 265
266 if (XFS_FORCED_SHUTDOWN(mp))
267 return -XFS_ERROR(EIO);
268
269 if (get_user(addr, &p32->lastip))
d5547f9f 270 return -XFS_ERROR(EFAULT);
faa63e95
MM		 271 bulkreq.lastip = compat_ptr(addr);
272 if (get_user(bulkreq.icount, &p32->icount) ||
273 get_user(addr, &p32->ubuffer))
d5547f9f 274 return -XFS_ERROR(EFAULT);
faa63e95
MM		 275 bulkreq.ubuffer = compat_ptr(addr);
276 if (get_user(addr, &p32->ocount))
d5547f9f 277 return -XFS_ERROR(EFAULT);
faa63e95 278 bulkreq.ocount = compat_ptr(addr);
1da177e4 279
faa63e95
MM		 280 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
281 return -XFS_ERROR(EFAULT);
282
283 if ((count = bulkreq.icount) <= 0)
284 return -XFS_ERROR(EINVAL);
285
cd57e594
LM		 286 if (bulkreq.ubuffer == NULL)
287 return -XFS_ERROR(EINVAL);
288
af819d27 289 if (cmd == XFS_IOC_FSINUMBERS_32) {
faa63e95
MM		 290 error = xfs_inumbers(mp, &inlast, &count,
291 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
af819d27 292 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
293 int res;
294
295 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
7b6259e7 296 sizeof(compat_xfs_bstat_t), 0, &res);
af819d27 297 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
faa63e95 298 error = xfs_bulkstat(mp, &inlast, &count,
7dce11db
CH		 299 xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
300 bulkreq.ubuffer, &done);
af819d27 301 } else
302 error = XFS_ERROR(EINVAL);
faa63e95
MM		 303 if (error)
304 return -error;
305
306 if (bulkreq.ocount != NULL) {
307 if (copy_to_user(bulkreq.lastip, &inlast,
308 sizeof(xfs_ino_t)))
309 return -XFS_ERROR(EFAULT);
310
311 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
312 return -XFS_ERROR(EFAULT);
313 }
314
315 return 0;
1da177e4 316}
faa63e95 317
d5547f9f 318STATIC int
319xfs_compat_handlereq_copyin(
320 xfs_fsop_handlereq_t *hreq,
321 compat_xfs_fsop_handlereq_t __user *arg32)
1fa503df 322{
d5547f9f 323 compat_xfs_fsop_handlereq_t hreq32;
324
325 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
326 return -XFS_ERROR(EFAULT);
327
328 hreq->fd = hreq32.fd;
329 hreq->path = compat_ptr(hreq32.path);
330 hreq->oflags = hreq32.oflags;
331 hreq->ihandle = compat_ptr(hreq32.ihandle);
332 hreq->ihandlen = hreq32.ihandlen;
333 hreq->ohandle = compat_ptr(hreq32.ohandle);
334 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
335
336 return 0;
1fa503df
MM		 337}
338
ab596ad8
CH		 339STATIC struct dentry *
340xfs_compat_handlereq_to_dentry(
341 struct file *parfilp,
342 compat_xfs_fsop_handlereq_t *hreq)
ebeecd2b 343{
ab596ad8
CH		 344 return xfs_handle_to_dentry(parfilp,
345 compat_ptr(hreq->ihandle), hreq->ihandlen);
ebeecd2b 346}
347
348STATIC int
349xfs_compat_attrlist_by_handle(
ab596ad8
CH		 350 struct file *parfilp,
351 void __user *arg)
ebeecd2b 352{
353 int error;
354 attrlist_cursor_kern_t *cursor;
355 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
ab596ad8 356 struct dentry *dentry;
ebeecd2b 357 char *kbuf;
358
359 if (!capable(CAP_SYS_ADMIN))
360 return -XFS_ERROR(EPERM);
361 if (copy_from_user(&al_hreq, arg,
362 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
363 return -XFS_ERROR(EFAULT);
364 if (al_hreq.buflen > XATTR_LIST_MAX)
365 return -XFS_ERROR(EINVAL);
366
367 /*
368 * Reject flags, only allow namespaces.
369 */
370 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
371 return -XFS_ERROR(EINVAL);
372
ab596ad8
CH		 373 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
374 if (IS_ERR(dentry))
375 return PTR_ERR(dentry);
ebeecd2b 376
ab596ad8 377 error = -ENOMEM;
ebeecd2b 378 kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
379 if (!kbuf)
ab596ad8 380 goto out_dput;
ebeecd2b 381
382 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
ab596ad8 383 error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
ebeecd2b 384 al_hreq.flags, cursor);
385 if (error)
386 goto out_kfree;
387
388 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
389 error = -EFAULT;
390
391 out_kfree:
392 kfree(kbuf);
ab596ad8
CH		 393 out_dput:
394 dput(dentry);
395 return error;
ebeecd2b 396}
397
28750975 398STATIC int
399xfs_compat_attrmulti_by_handle(
ab596ad8
CH		 400 struct file *parfilp,
401 void __user *arg)
28750975 402{
403 int error;
404 compat_xfs_attr_multiop_t *ops;
405 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
ab596ad8 406 struct dentry *dentry;
28750975 407 unsigned int i, size;
a9273ca5 408 unsigned char *attr_name;
28750975 409
410 if (!capable(CAP_SYS_ADMIN))
411 return -XFS_ERROR(EPERM);
412 if (copy_from_user(&am_hreq, arg,
413 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
414 return -XFS_ERROR(EFAULT);
415
fda168c2
ZW		 416 /* overflow check */
417 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
418 return -E2BIG;
419
ab596ad8
CH		 420 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
421 if (IS_ERR(dentry))
422 return PTR_ERR(dentry);
28750975 423
424 error = E2BIG;
425 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
426 if (!size || size > 16 * PAGE_SIZE)
ab596ad8 427 goto out_dput;
28750975 428
0e639bde
LZ		 429 ops = memdup_user(compat_ptr(am_hreq.ops), size);
430 if (IS_ERR(ops)) {
431 error = PTR_ERR(ops);
ab596ad8 432 goto out_dput;
0e639bde 433 }
28750975 434
435 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
436 if (!attr_name)
437 goto out_kfree_ops;
438
28750975 439 error = 0;
440 for (i = 0; i < am_hreq.opcount; i++) {
a9273ca5 441 ops[i].am_error = strncpy_from_user((char *)attr_name,
28750975 442 compat_ptr(ops[i].am_attrname),
443 MAXNAMELEN);
444 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
445 error = -ERANGE;
446 if (ops[i].am_error < 0)
447 break;
448
449 switch (ops[i].am_opcode) {
450 case ATTR_OP_GET:
ab596ad8
CH		 451 ops[i].am_error = xfs_attrmulti_attr_get(
452 dentry->d_inode, attr_name,
28750975 453 compat_ptr(ops[i].am_attrvalue),
454 &ops[i].am_length, ops[i].am_flags);
455 break;
456 case ATTR_OP_SET:
62e194ec
CH		 457 ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
458 if (ops[i].am_error)
459 break;
ab596ad8
CH		 460 ops[i].am_error = xfs_attrmulti_attr_set(
461 dentry->d_inode, attr_name,
28750975 462 compat_ptr(ops[i].am_attrvalue),
463 ops[i].am_length, ops[i].am_flags);
62e194ec 464 mnt_drop_write(parfilp->f_path.mnt);
28750975 465 break;
466 case ATTR_OP_REMOVE:
62e194ec
CH		 467 ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
468 if (ops[i].am_error)
469 break;
ab596ad8
CH		 470 ops[i].am_error = xfs_attrmulti_attr_remove(
471 dentry->d_inode, attr_name,
472 ops[i].am_flags);
62e194ec 473 mnt_drop_write(parfilp->f_path.mnt);
28750975 474 break;
475 default:
476 ops[i].am_error = EINVAL;
477 }
478 }
479
480 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
481 error = XFS_ERROR(EFAULT);
482
483 kfree(attr_name);
484 out_kfree_ops:
485 kfree(ops);
ab596ad8
CH		 486 out_dput:
487 dput(dentry);
28750975 488 return -error;
489}
490
710d62aa 491STATIC int
492xfs_compat_fssetdm_by_handle(
ab596ad8
CH		 493 struct file *parfilp,
494 void __user *arg)
710d62aa 495{
496 int error;
497 struct fsdmidata fsd;
498 compat_xfs_fsop_setdm_handlereq_t dmhreq;
ab596ad8 499 struct dentry *dentry;
710d62aa 500
501 if (!capable(CAP_MKNOD))
502 return -XFS_ERROR(EPERM);
503 if (copy_from_user(&dmhreq, arg,
504 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
505 return -XFS_ERROR(EFAULT);
506
ab596ad8
CH		 507 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
508 if (IS_ERR(dentry))
509 return PTR_ERR(dentry);
710d62aa 510
ab596ad8 511 if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
710d62aa 512 error = -XFS_ERROR(EPERM);
513 goto out;
514 }
515
516 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
517 error = -XFS_ERROR(EFAULT);
518 goto out;
519 }
520
ab596ad8 521 error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
710d62aa 522 fsd.fsd_dmstate);
523
524out:
ab596ad8 525 dput(dentry);
710d62aa 526 return error;
527}
528
4d4be482
CH		 529long
530xfs_file_compat_ioctl(
531 struct file *filp,
532 unsigned cmd,
533 unsigned long p)
1da177e4 534{
4d4be482
CH		 535 struct inode *inode = filp->f_path.dentry->d_inode;
536 struct xfs_inode *ip = XFS_I(inode);
537 struct xfs_mount *mp = ip->i_mount;
538 void __user *arg = (void __user *)p;
539 int ioflags = 0;
540 int error;
541
542 if (filp->f_mode & FMODE_NOCMTIME)
543 ioflags |= IO_INVIS;
544
cca28fb8 545 trace_xfs_file_compat_ioctl(ip);
1da177e4
LT		 546
547 switch (cmd) {
e5d412f1 548 /* No size or alignment issues on any arch */
1da177e4 549 case XFS_IOC_DIOINFO:
1da177e4 550 case XFS_IOC_FSGEOMETRY:
1da177e4
LT		 551 case XFS_IOC_FSGETXATTR:
552 case XFS_IOC_FSSETXATTR:
553 case XFS_IOC_FSGETXATTRA:
554 case XFS_IOC_FSSETDM:
555 case XFS_IOC_GETBMAP:
556 case XFS_IOC_GETBMAPA:
557 case XFS_IOC_GETBMAPX:
1da177e4
LT		 558 case XFS_IOC_FSCOUNTS:
559 case XFS_IOC_SET_RESBLKS:
560 case XFS_IOC_GET_RESBLKS:
1da177e4 561 case XFS_IOC_FSGROWFSLOG:
1da177e4
LT		 562 case XFS_IOC_GOINGDOWN:
563 case XFS_IOC_ERROR_INJECTION:
564 case XFS_IOC_ERROR_CLEARALL:
4d4be482 565 return xfs_file_ioctl(filp, cmd, p);
e5d412f1 566#ifndef BROKEN_X86_ALIGNMENT
567 /* These are handled fine if no alignment issues */
568 case XFS_IOC_ALLOCSP:
569 case XFS_IOC_FREESP:
570 case XFS_IOC_RESVSP:
571 case XFS_IOC_UNRESVSP:
572 case XFS_IOC_ALLOCSP64:
573 case XFS_IOC_FREESP64:
574 case XFS_IOC_RESVSP64:
575 case XFS_IOC_UNRESVSP64:
576 case XFS_IOC_FSGEOMETRY_V1:
577 case XFS_IOC_FSGROWFSDATA:
578 case XFS_IOC_FSGROWFSRT:
44722352 579 case XFS_IOC_ZERO_RANGE:
4d4be482 580 return xfs_file_ioctl(filp, cmd, p);
e5d412f1 581#else
526c420c
ES		 582 case XFS_IOC_ALLOCSP_32:
583 case XFS_IOC_FREESP_32:
584 case XFS_IOC_ALLOCSP64_32:
585 case XFS_IOC_FREESP64_32:
586 case XFS_IOC_RESVSP_32:
587 case XFS_IOC_UNRESVSP_32:
588 case XFS_IOC_RESVSP64_32:
d5547f9f 589 case XFS_IOC_UNRESVSP64_32: {
590 struct xfs_flock64 bf;
591
592 if (xfs_compat_flock64_copyin(&bf, arg))
593 return -XFS_ERROR(EFAULT);
526c420c 594 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
d5547f9f 595 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
596 }
547e00c3 597 case XFS_IOC_FSGEOMETRY_V1_32:
d5547f9f 598 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
471d5910 599 case XFS_IOC_FSGROWFSDATA_32: {
600 struct xfs_growfs_data in;
601
602 if (xfs_compat_growfs_data_copyin(&in, arg))
603 return -XFS_ERROR(EFAULT);
604 error = xfs_growfs_data(mp, &in);
605 return -error;
606 }
607 case XFS_IOC_FSGROWFSRT_32: {
608 struct xfs_growfs_rt in;
609
610 if (xfs_compat_growfs_rt_copyin(&in, arg))
611 return -XFS_ERROR(EFAULT);
612 error = xfs_growfs_rt(mp, &in);
613 return -error;
614 }
1da177e4 615#endif
e5d412f1 616 /* long changes size, but xfs only copiese out 32 bits */
617 case XFS_IOC_GETXFLAGS_32:
618 case XFS_IOC_SETXFLAGS_32:
619 case XFS_IOC_GETVERSION_32:
620 cmd = _NATIVE_IOC(cmd, long);
4d4be482 621 return xfs_file_ioctl(filp, cmd, p);
3725867d 622 case XFS_IOC_SWAPEXT_32: {
e5d412f1 623 struct xfs_swapext sxp;
624 struct compat_xfs_swapext __user *sxu = arg;
625
626 /* Bulk copy in up to the sx_stat field, then copy bstat */
627 if (copy_from_user(&sxp, sxu,
628 offsetof(struct xfs_swapext, sx_stat)) ||
629 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
630 return -XFS_ERROR(EFAULT);
631 error = xfs_swapext(&sxp);
632 return -error;
633 }
faa63e95
MM		 634 case XFS_IOC_FSBULKSTAT_32:
635 case XFS_IOC_FSBULKSTAT_SINGLE_32:
636 case XFS_IOC_FSINUMBERS_32:
2ee4fa5c 637 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
1fa503df
MM		 638 case XFS_IOC_FD_TO_HANDLE_32:
639 case XFS_IOC_PATH_TO_HANDLE_32:
d5547f9f 640 case XFS_IOC_PATH_TO_FSHANDLE_32: {
641 struct xfs_fsop_handlereq hreq;
642
643 if (xfs_compat_handlereq_copyin(&hreq, arg))
644 return -XFS_ERROR(EFAULT);
1fa503df 645 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
d5547f9f 646 return xfs_find_handle(cmd, &hreq);
647 }
648 case XFS_IOC_OPEN_BY_HANDLE_32: {
649 struct xfs_fsop_handlereq hreq;
650
651 if (xfs_compat_handlereq_copyin(&hreq, arg))
652 return -XFS_ERROR(EFAULT);
ab596ad8 653 return xfs_open_by_handle(filp, &hreq);
d5547f9f 654 }
655 case XFS_IOC_READLINK_BY_HANDLE_32: {
656 struct xfs_fsop_handlereq hreq;
657
658 if (xfs_compat_handlereq_copyin(&hreq, arg))
659 return -XFS_ERROR(EFAULT);
ab596ad8 660 return xfs_readlink_by_handle(filp, &hreq);
d5547f9f 661 }
ebeecd2b 662 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
ab596ad8 663 return xfs_compat_attrlist_by_handle(filp, arg);
28750975 664 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
ab596ad8 665 return xfs_compat_attrmulti_by_handle(filp, arg);
710d62aa 666 case XFS_IOC_FSSETDM_BY_HANDLE_32:
ab596ad8 667 return xfs_compat_fssetdm_by_handle(filp, arg);
1da177e4 668 default:
d5547f9f 669 return -XFS_ERROR(ENOIOCTLCMD);
1da177e4 670 }
1da177e4 671}
Clone of davem's net-next-2.6 tree