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