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_format.h"
26 #include "xfs_log_format.h"
27 #include "xfs_trans_resv.h"
28 #include "xfs_mount.h"
29 #include "xfs_inode.h"
30 #include "xfs_itable.h"
31 #include "xfs_error.h"
32 #include "xfs_fsops.h"
33 #include "xfs_alloc.h"
34 #include "xfs_rtalloc.h"
35 #include "xfs_attr.h"
36 #include "xfs_ioctl.h"
37 #include "xfs_ioctl32.h"
38 #include "xfs_trace.h"
39
40 #define _NATIVE_IOC(cmd, type) \
41 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
42
43 #ifdef BROKEN_X86_ALIGNMENT
44 STATIC int
xfs_compat_flock64_copyin(xfs_flock64_t * bf,compat_xfs_flock64_t __user * arg32)45 xfs_compat_flock64_copyin(
46 xfs_flock64_t *bf,
47 compat_xfs_flock64_t __user *arg32)
48 {
49 if (get_user(bf->l_type, &arg32->l_type) ||
50 get_user(bf->l_whence, &arg32->l_whence) ||
51 get_user(bf->l_start, &arg32->l_start) ||
52 get_user(bf->l_len, &arg32->l_len) ||
53 get_user(bf->l_sysid, &arg32->l_sysid) ||
54 get_user(bf->l_pid, &arg32->l_pid) ||
55 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
56 return -EFAULT;
57 return 0;
58 }
59
60 STATIC int
xfs_compat_ioc_fsgeometry_v1(struct xfs_mount * mp,compat_xfs_fsop_geom_v1_t __user * arg32)61 xfs_compat_ioc_fsgeometry_v1(
62 struct xfs_mount *mp,
63 compat_xfs_fsop_geom_v1_t __user *arg32)
64 {
65 xfs_fsop_geom_t fsgeo;
66 int error;
67
68 error = xfs_fs_geometry(mp, &fsgeo, 3);
69 if (error)
70 return error;
71 /* The 32-bit variant simply has some padding at the end */
72 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
73 return -EFAULT;
74 return 0;
75 }
76
77 STATIC int
xfs_compat_growfs_data_copyin(struct xfs_growfs_data * in,compat_xfs_growfs_data_t __user * arg32)78 xfs_compat_growfs_data_copyin(
79 struct xfs_growfs_data *in,
80 compat_xfs_growfs_data_t __user *arg32)
81 {
82 if (get_user(in->newblocks, &arg32->newblocks) ||
83 get_user(in->imaxpct, &arg32->imaxpct))
84 return -EFAULT;
85 return 0;
86 }
87
88 STATIC int
xfs_compat_growfs_rt_copyin(struct xfs_growfs_rt * in,compat_xfs_growfs_rt_t __user * arg32)89 xfs_compat_growfs_rt_copyin(
90 struct xfs_growfs_rt *in,
91 compat_xfs_growfs_rt_t __user *arg32)
92 {
93 if (get_user(in->newblocks, &arg32->newblocks) ||
94 get_user(in->extsize, &arg32->extsize))
95 return -EFAULT;
96 return 0;
97 }
98
99 STATIC int
xfs_inumbers_fmt_compat(void __user * ubuffer,const struct xfs_inogrp * buffer,long count,long * written)100 xfs_inumbers_fmt_compat(
101 void __user *ubuffer,
102 const struct xfs_inogrp *buffer,
103 long count,
104 long *written)
105 {
106 compat_xfs_inogrp_t __user *p32 = ubuffer;
107 long i;
108
109 for (i = 0; i < count; i++) {
110 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
111 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
112 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
113 return -EFAULT;
114 }
115 *written = count * sizeof(*p32);
116 return 0;
117 }
118
119 #else
120 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
121 #endif /* BROKEN_X86_ALIGNMENT */
122
123 STATIC int
xfs_ioctl32_bstime_copyin(xfs_bstime_t * bstime,compat_xfs_bstime_t __user * bstime32)124 xfs_ioctl32_bstime_copyin(
125 xfs_bstime_t *bstime,
126 compat_xfs_bstime_t __user *bstime32)
127 {
128 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
129
130 if (get_user(sec32, &bstime32->tv_sec) ||
131 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
132 return -EFAULT;
133 bstime->tv_sec = sec32;
134 return 0;
135 }
136
137 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
138 STATIC int
xfs_ioctl32_bstat_copyin(xfs_bstat_t * bstat,compat_xfs_bstat_t __user * bstat32)139 xfs_ioctl32_bstat_copyin(
140 xfs_bstat_t *bstat,
141 compat_xfs_bstat_t __user *bstat32)
142 {
143 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
144 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
145 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
146 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
147 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
148 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
149 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
150 get_user(bstat->bs_size, &bstat32->bs_size) ||
151 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
152 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
153 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
154 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
155 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
156 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
157 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
158 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
159 get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
160 get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
161 get_user(bstat->bs_forkoff, &bstat32->bs_forkoff) ||
162 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
163 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
164 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
165 return -EFAULT;
166 return 0;
167 }
168
169 /* XFS_IOC_FSBULKSTAT and friends */
170
171 STATIC int
xfs_bstime_store_compat(compat_xfs_bstime_t __user * p32,const xfs_bstime_t * p)172 xfs_bstime_store_compat(
173 compat_xfs_bstime_t __user *p32,
174 const xfs_bstime_t *p)
175 {
176 __s32 sec32;
177
178 sec32 = p->tv_sec;
179 if (put_user(sec32, &p32->tv_sec) ||
180 put_user(p->tv_nsec, &p32->tv_nsec))
181 return -EFAULT;
182 return 0;
183 }
184
185 /* Return 0 on success or positive error (to xfs_bulkstat()) */
186 STATIC int
xfs_bulkstat_one_fmt_compat(void __user * ubuffer,int ubsize,int * ubused,const xfs_bstat_t * buffer)187 xfs_bulkstat_one_fmt_compat(
188 void __user *ubuffer,
189 int ubsize,
190 int *ubused,
191 const xfs_bstat_t *buffer)
192 {
193 compat_xfs_bstat_t __user *p32 = ubuffer;
194
195 if (ubsize < sizeof(*p32))
196 return -ENOMEM;
197
198 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
199 put_user(buffer->bs_mode, &p32->bs_mode) ||
200 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
201 put_user(buffer->bs_uid, &p32->bs_uid) ||
202 put_user(buffer->bs_gid, &p32->bs_gid) ||
203 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
204 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
205 put_user(buffer->bs_size, &p32->bs_size) ||
206 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
207 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
208 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
209 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
210 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
211 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
212 put_user(buffer->bs_extents, &p32->bs_extents) ||
213 put_user(buffer->bs_gen, &p32->bs_gen) ||
214 put_user(buffer->bs_projid, &p32->bs_projid) ||
215 put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) ||
216 put_user(buffer->bs_forkoff, &p32->bs_forkoff) ||
217 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
218 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
219 put_user(buffer->bs_aextents, &p32->bs_aextents))
220 return -EFAULT;
221 if (ubused)
222 *ubused = sizeof(*p32);
223 return 0;
224 }
225
226 STATIC int
xfs_bulkstat_one_compat(xfs_mount_t * mp,xfs_ino_t ino,void __user * buffer,int ubsize,int * ubused,int * stat)227 xfs_bulkstat_one_compat(
228 xfs_mount_t *mp, /* mount point for filesystem */
229 xfs_ino_t ino, /* inode number to get data for */
230 void __user *buffer, /* buffer to place output in */
231 int ubsize, /* size of buffer */
232 int *ubused, /* bytes used by me */
233 int *stat) /* BULKSTAT_RV_... */
234 {
235 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
236 xfs_bulkstat_one_fmt_compat,
237 ubused, stat);
238 }
239
240 /* copied from xfs_ioctl.c */
241 STATIC int
xfs_compat_ioc_bulkstat(xfs_mount_t * mp,unsigned int cmd,compat_xfs_fsop_bulkreq_t __user * p32)242 xfs_compat_ioc_bulkstat(
243 xfs_mount_t *mp,
244 unsigned int cmd,
245 compat_xfs_fsop_bulkreq_t __user *p32)
246 {
247 u32 addr;
248 xfs_fsop_bulkreq_t bulkreq;
249 int count; /* # of records returned */
250 xfs_ino_t inlast; /* last inode number */
251 int done;
252 int error;
253
254 /* done = 1 if there are more stats to get and if bulkstat */
255 /* should be called again (unused here, but used in dmapi) */
256
257 if (!capable(CAP_SYS_ADMIN))
258 return -EPERM;
259
260 if (XFS_FORCED_SHUTDOWN(mp))
261 return -EIO;
262
263 if (get_user(addr, &p32->lastip))
264 return -EFAULT;
265 bulkreq.lastip = compat_ptr(addr);
266 if (get_user(bulkreq.icount, &p32->icount) ||
267 get_user(addr, &p32->ubuffer))
268 return -EFAULT;
269 bulkreq.ubuffer = compat_ptr(addr);
270 if (get_user(addr, &p32->ocount))
271 return -EFAULT;
272 bulkreq.ocount = compat_ptr(addr);
273
274 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
275 return -EFAULT;
276
277 if ((count = bulkreq.icount) <= 0)
278 return -EINVAL;
279
280 if (bulkreq.ubuffer == NULL)
281 return -EINVAL;
282
283 if (cmd == XFS_IOC_FSINUMBERS_32) {
284 error = xfs_inumbers(mp, &inlast, &count,
285 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
286 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
287 int res;
288
289 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
290 sizeof(compat_xfs_bstat_t), NULL, &res);
291 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
292 error = xfs_bulkstat(mp, &inlast, &count,
293 xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
294 bulkreq.ubuffer, &done);
295 } else
296 error = -EINVAL;
297 if (error)
298 return error;
299
300 if (bulkreq.ocount != NULL) {
301 if (copy_to_user(bulkreq.lastip, &inlast,
302 sizeof(xfs_ino_t)))
303 return -EFAULT;
304
305 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
306 return -EFAULT;
307 }
308
309 return 0;
310 }
311
312 STATIC int
xfs_compat_handlereq_copyin(xfs_fsop_handlereq_t * hreq,compat_xfs_fsop_handlereq_t __user * arg32)313 xfs_compat_handlereq_copyin(
314 xfs_fsop_handlereq_t *hreq,
315 compat_xfs_fsop_handlereq_t __user *arg32)
316 {
317 compat_xfs_fsop_handlereq_t hreq32;
318
319 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
320 return -EFAULT;
321
322 hreq->fd = hreq32.fd;
323 hreq->path = compat_ptr(hreq32.path);
324 hreq->oflags = hreq32.oflags;
325 hreq->ihandle = compat_ptr(hreq32.ihandle);
326 hreq->ihandlen = hreq32.ihandlen;
327 hreq->ohandle = compat_ptr(hreq32.ohandle);
328 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
329
330 return 0;
331 }
332
333 STATIC struct dentry *
xfs_compat_handlereq_to_dentry(struct file * parfilp,compat_xfs_fsop_handlereq_t * hreq)334 xfs_compat_handlereq_to_dentry(
335 struct file *parfilp,
336 compat_xfs_fsop_handlereq_t *hreq)
337 {
338 return xfs_handle_to_dentry(parfilp,
339 compat_ptr(hreq->ihandle), hreq->ihandlen);
340 }
341
342 STATIC int
xfs_compat_attrlist_by_handle(struct file * parfilp,void __user * arg)343 xfs_compat_attrlist_by_handle(
344 struct file *parfilp,
345 void __user *arg)
346 {
347 int error;
348 attrlist_cursor_kern_t *cursor;
349 compat_xfs_fsop_attrlist_handlereq_t __user *p = arg;
350 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
351 struct dentry *dentry;
352 char *kbuf;
353
354 if (!capable(CAP_SYS_ADMIN))
355 return -EPERM;
356 if (copy_from_user(&al_hreq, arg,
357 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
358 return -EFAULT;
359 if (al_hreq.buflen < sizeof(struct attrlist) ||
360 al_hreq.buflen > XFS_XATTR_LIST_MAX)
361 return -EINVAL;
362
363 /*
364 * Reject flags, only allow namespaces.
365 */
366 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
367 return -EINVAL;
368
369 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
370 if (IS_ERR(dentry))
371 return PTR_ERR(dentry);
372
373 error = -ENOMEM;
374 kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP);
375 if (!kbuf)
376 goto out_dput;
377
378 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
379 error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen,
380 al_hreq.flags, cursor);
381 if (error)
382 goto out_kfree;
383
384 if (copy_to_user(&p->pos, cursor, sizeof(attrlist_cursor_kern_t))) {
385 error = -EFAULT;
386 goto out_kfree;
387 }
388
389 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
390 error = -EFAULT;
391
392 out_kfree:
393 kmem_free(kbuf);
394 out_dput:
395 dput(dentry);
396 return error;
397 }
398
399 STATIC int
xfs_compat_attrmulti_by_handle(struct file * parfilp,void __user * arg)400 xfs_compat_attrmulti_by_handle(
401 struct file *parfilp,
402 void __user *arg)
403 {
404 int error;
405 compat_xfs_attr_multiop_t *ops;
406 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
407 struct dentry *dentry;
408 unsigned int i, size;
409 unsigned char *attr_name;
410
411 if (!capable(CAP_SYS_ADMIN))
412 return -EPERM;
413 if (copy_from_user(&am_hreq, arg,
414 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
415 return -EFAULT;
416
417 /* overflow check */
418 if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t))
419 return -E2BIG;
420
421 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
422 if (IS_ERR(dentry))
423 return PTR_ERR(dentry);
424
425 error = -E2BIG;
426 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
427 if (!size || size > 16 * PAGE_SIZE)
428 goto out_dput;
429
430 ops = memdup_user(compat_ptr(am_hreq.ops), size);
431 if (IS_ERR(ops)) {
432 error = PTR_ERR(ops);
433 goto out_dput;
434 }
435
436 error = -ENOMEM;
437 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
438 if (!attr_name)
439 goto out_kfree_ops;
440
441 error = 0;
442 for (i = 0; i < am_hreq.opcount; i++) {
443 ops[i].am_error = strncpy_from_user((char *)attr_name,
444 compat_ptr(ops[i].am_attrname),
445 MAXNAMELEN);
446 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
447 error = -ERANGE;
448 if (ops[i].am_error < 0)
449 break;
450
451 switch (ops[i].am_opcode) {
452 case ATTR_OP_GET:
453 ops[i].am_error = xfs_attrmulti_attr_get(
454 d_inode(dentry), attr_name,
455 compat_ptr(ops[i].am_attrvalue),
456 &ops[i].am_length, ops[i].am_flags);
457 break;
458 case ATTR_OP_SET:
459 ops[i].am_error = mnt_want_write_file(parfilp);
460 if (ops[i].am_error)
461 break;
462 ops[i].am_error = xfs_attrmulti_attr_set(
463 d_inode(dentry), attr_name,
464 compat_ptr(ops[i].am_attrvalue),
465 ops[i].am_length, ops[i].am_flags);
466 mnt_drop_write_file(parfilp);
467 break;
468 case ATTR_OP_REMOVE:
469 ops[i].am_error = mnt_want_write_file(parfilp);
470 if (ops[i].am_error)
471 break;
472 ops[i].am_error = xfs_attrmulti_attr_remove(
473 d_inode(dentry), attr_name,
474 ops[i].am_flags);
475 mnt_drop_write_file(parfilp);
476 break;
477 default:
478 ops[i].am_error = -EINVAL;
479 }
480 }
481
482 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
483 error = -EFAULT;
484
485 kfree(attr_name);
486 out_kfree_ops:
487 kfree(ops);
488 out_dput:
489 dput(dentry);
490 return error;
491 }
492
493 STATIC int
xfs_compat_fssetdm_by_handle(struct file * parfilp,void __user * arg)494 xfs_compat_fssetdm_by_handle(
495 struct file *parfilp,
496 void __user *arg)
497 {
498 int error;
499 struct fsdmidata fsd;
500 compat_xfs_fsop_setdm_handlereq_t dmhreq;
501 struct dentry *dentry;
502
503 if (!capable(CAP_MKNOD))
504 return -EPERM;
505 if (copy_from_user(&dmhreq, arg,
506 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
507 return -EFAULT;
508
509 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
510 if (IS_ERR(dentry))
511 return PTR_ERR(dentry);
512
513 if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) {
514 error = -EPERM;
515 goto out;
516 }
517
518 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
519 error = -EFAULT;
520 goto out;
521 }
522
523 error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask,
524 fsd.fsd_dmstate);
525
526 out:
527 dput(dentry);
528 return error;
529 }
530
531 long
xfs_file_compat_ioctl(struct file * filp,unsigned cmd,unsigned long p)532 xfs_file_compat_ioctl(
533 struct file *filp,
534 unsigned cmd,
535 unsigned long p)
536 {
537 struct inode *inode = file_inode(filp);
538 struct xfs_inode *ip = XFS_I(inode);
539 struct xfs_mount *mp = ip->i_mount;
540 void __user *arg = (void __user *)p;
541 int ioflags = 0;
542 int error;
543
544 if (filp->f_mode & FMODE_NOCMTIME)
545 ioflags |= XFS_IO_INVIS;
546
547 trace_xfs_file_compat_ioctl(ip);
548
549 switch (cmd) {
550 /* No size or alignment issues on any arch */
551 case XFS_IOC_DIOINFO:
552 case XFS_IOC_FSGEOMETRY:
553 case XFS_IOC_FSGETXATTR:
554 case XFS_IOC_FSSETXATTR:
555 case XFS_IOC_FSGETXATTRA:
556 case XFS_IOC_FSSETDM:
557 case XFS_IOC_GETBMAP:
558 case XFS_IOC_GETBMAPA:
559 case XFS_IOC_GETBMAPX:
560 case XFS_IOC_FSCOUNTS:
561 case XFS_IOC_SET_RESBLKS:
562 case XFS_IOC_GET_RESBLKS:
563 case XFS_IOC_FSGROWFSLOG:
564 case XFS_IOC_GOINGDOWN:
565 case XFS_IOC_ERROR_INJECTION:
566 case XFS_IOC_ERROR_CLEARALL:
567 return xfs_file_ioctl(filp, cmd, p);
568 #ifndef BROKEN_X86_ALIGNMENT
569 /* These are handled fine if no alignment issues */
570 case XFS_IOC_ALLOCSP:
571 case XFS_IOC_FREESP:
572 case XFS_IOC_RESVSP:
573 case XFS_IOC_UNRESVSP:
574 case XFS_IOC_ALLOCSP64:
575 case XFS_IOC_FREESP64:
576 case XFS_IOC_RESVSP64:
577 case XFS_IOC_UNRESVSP64:
578 case XFS_IOC_FSGEOMETRY_V1:
579 case XFS_IOC_FSGROWFSDATA:
580 case XFS_IOC_FSGROWFSRT:
581 case XFS_IOC_ZERO_RANGE:
582 return xfs_file_ioctl(filp, cmd, p);
583 #else
584 case XFS_IOC_ALLOCSP_32:
585 case XFS_IOC_FREESP_32:
586 case XFS_IOC_ALLOCSP64_32:
587 case XFS_IOC_FREESP64_32:
588 case XFS_IOC_RESVSP_32:
589 case XFS_IOC_UNRESVSP_32:
590 case XFS_IOC_RESVSP64_32:
591 case XFS_IOC_UNRESVSP64_32:
592 case XFS_IOC_ZERO_RANGE_32: {
593 struct xfs_flock64 bf;
594
595 if (xfs_compat_flock64_copyin(&bf, arg))
596 return -EFAULT;
597 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
598 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
599 }
600 case XFS_IOC_FSGEOMETRY_V1_32:
601 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
602 case XFS_IOC_FSGROWFSDATA_32: {
603 struct xfs_growfs_data in;
604
605 if (xfs_compat_growfs_data_copyin(&in, arg))
606 return -EFAULT;
607 error = mnt_want_write_file(filp);
608 if (error)
609 return error;
610 error = xfs_growfs_data(mp, &in);
611 mnt_drop_write_file(filp);
612 return error;
613 }
614 case XFS_IOC_FSGROWFSRT_32: {
615 struct xfs_growfs_rt in;
616
617 if (xfs_compat_growfs_rt_copyin(&in, arg))
618 return -EFAULT;
619 error = mnt_want_write_file(filp);
620 if (error)
621 return error;
622 error = xfs_growfs_rt(mp, &in);
623 mnt_drop_write_file(filp);
624 return error;
625 }
626 #endif
627 /* long changes size, but xfs only copiese out 32 bits */
628 case XFS_IOC_GETXFLAGS_32:
629 case XFS_IOC_SETXFLAGS_32:
630 case XFS_IOC_GETVERSION_32:
631 cmd = _NATIVE_IOC(cmd, long);
632 return xfs_file_ioctl(filp, cmd, p);
633 case XFS_IOC_SWAPEXT_32: {
634 struct xfs_swapext sxp;
635 struct compat_xfs_swapext __user *sxu = arg;
636
637 /* Bulk copy in up to the sx_stat field, then copy bstat */
638 if (copy_from_user(&sxp, sxu,
639 offsetof(struct xfs_swapext, sx_stat)) ||
640 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
641 return -EFAULT;
642 error = mnt_want_write_file(filp);
643 if (error)
644 return error;
645 error = xfs_ioc_swapext(&sxp);
646 mnt_drop_write_file(filp);
647 return error;
648 }
649 case XFS_IOC_FSBULKSTAT_32:
650 case XFS_IOC_FSBULKSTAT_SINGLE_32:
651 case XFS_IOC_FSINUMBERS_32:
652 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
653 case XFS_IOC_FD_TO_HANDLE_32:
654 case XFS_IOC_PATH_TO_HANDLE_32:
655 case XFS_IOC_PATH_TO_FSHANDLE_32: {
656 struct xfs_fsop_handlereq hreq;
657
658 if (xfs_compat_handlereq_copyin(&hreq, arg))
659 return -EFAULT;
660 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
661 return xfs_find_handle(cmd, &hreq);
662 }
663 case XFS_IOC_OPEN_BY_HANDLE_32: {
664 struct xfs_fsop_handlereq hreq;
665
666 if (xfs_compat_handlereq_copyin(&hreq, arg))
667 return -EFAULT;
668 return xfs_open_by_handle(filp, &hreq);
669 }
670 case XFS_IOC_READLINK_BY_HANDLE_32: {
671 struct xfs_fsop_handlereq hreq;
672
673 if (xfs_compat_handlereq_copyin(&hreq, arg))
674 return -EFAULT;
675 return xfs_readlink_by_handle(filp, &hreq);
676 }
677 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
678 return xfs_compat_attrlist_by_handle(filp, arg);
679 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
680 return xfs_compat_attrmulti_by_handle(filp, arg);
681 case XFS_IOC_FSSETDM_BY_HANDLE_32:
682 return xfs_compat_fssetdm_by_handle(filp, arg);
683 default:
684 return -ENOIOCTLCMD;
685 }
686 }
687