Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2005 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 "xfs.h" |
1da177e4 | 19 | #include "xfs_fs.h" |
a844f451 | 20 | #include "xfs_bit.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
a844f451 | 25 | #include "xfs_ag.h" |
1da177e4 | 26 | #include "xfs_alloc.h" |
1da177e4 | 27 | #include "xfs_mount.h" |
1da177e4 | 28 | #include "xfs_bmap_btree.h" |
1da177e4 LT |
29 | #include "xfs_dinode.h" |
30 | #include "xfs_inode.h" | |
7bf446f8 | 31 | #include "xfs_ioctl.h" |
1da177e4 | 32 | #include "xfs_rtalloc.h" |
1da177e4 | 33 | #include "xfs_itable.h" |
a844f451 | 34 | #include "xfs_error.h" |
1da177e4 | 35 | #include "xfs_attr.h" |
a844f451 | 36 | #include "xfs_bmap.h" |
1da177e4 LT |
37 | #include "xfs_buf_item.h" |
38 | #include "xfs_utils.h" | |
39 | #include "xfs_dfrag.h" | |
40 | #include "xfs_fsops.h" | |
993386c1 | 41 | #include "xfs_vnodeops.h" |
a46db608 | 42 | #include "xfs_discard.h" |
25fe55e8 CH |
43 | #include "xfs_quota.h" |
44 | #include "xfs_inode_item.h" | |
d296d30a | 45 | #include "xfs_export.h" |
0b1b213f | 46 | #include "xfs_trace.h" |
1da177e4 | 47 | |
16f7e0fe | 48 | #include <linux/capability.h> |
1da177e4 LT |
49 | #include <linux/dcache.h> |
50 | #include <linux/mount.h> | |
51 | #include <linux/namei.h> | |
52 | #include <linux/pagemap.h> | |
5a0e3ad6 | 53 | #include <linux/slab.h> |
d296d30a | 54 | #include <linux/exportfs.h> |
1da177e4 LT |
55 | |
56 | /* | |
57 | * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to | |
58 | * a file or fs handle. | |
59 | * | |
60 | * XFS_IOC_PATH_TO_FSHANDLE | |
61 | * returns fs handle for a mount point or path within that mount point | |
62 | * XFS_IOC_FD_TO_HANDLE | |
63 | * returns full handle for a FD opened in user space | |
64 | * XFS_IOC_PATH_TO_HANDLE | |
65 | * returns full handle for a path | |
66 | */ | |
d5547f9f | 67 | int |
1da177e4 LT |
68 | xfs_find_handle( |
69 | unsigned int cmd, | |
743bb465 | 70 | xfs_fsop_handlereq_t *hreq) |
1da177e4 LT |
71 | { |
72 | int hsize; | |
73 | xfs_handle_t handle; | |
1da177e4 | 74 | struct inode *inode; |
4346cdd4 CH |
75 | struct file *file = NULL; |
76 | struct path path; | |
77 | int error; | |
78 | struct xfs_inode *ip; | |
1da177e4 | 79 | |
4346cdd4 | 80 | if (cmd == XFS_IOC_FD_TO_HANDLE) { |
743bb465 | 81 | file = fget(hreq->fd); |
1da177e4 | 82 | if (!file) |
4346cdd4 CH |
83 | return -EBADF; |
84 | inode = file->f_path.dentry->d_inode; | |
85 | } else { | |
86 | error = user_lpath((const char __user *)hreq->path, &path); | |
87 | if (error) | |
88 | return error; | |
89 | inode = path.dentry->d_inode; | |
1da177e4 | 90 | } |
4346cdd4 CH |
91 | ip = XFS_I(inode); |
92 | ||
93 | /* | |
94 | * We can only generate handles for inodes residing on a XFS filesystem, | |
95 | * and only for regular files, directories or symbolic links. | |
96 | */ | |
97 | error = -EINVAL; | |
98 | if (inode->i_sb->s_magic != XFS_SB_MAGIC) | |
99 | goto out_put; | |
100 | ||
101 | error = -EBADF; | |
102 | if (!S_ISREG(inode->i_mode) && | |
103 | !S_ISDIR(inode->i_mode) && | |
104 | !S_ISLNK(inode->i_mode)) | |
105 | goto out_put; | |
106 | ||
107 | ||
108 | memcpy(&handle.ha_fsid, ip->i_mount->m_fixedfsid, sizeof(xfs_fsid_t)); | |
109 | ||
110 | if (cmd == XFS_IOC_PATH_TO_FSHANDLE) { | |
111 | /* | |
112 | * This handle only contains an fsid, zero the rest. | |
113 | */ | |
114 | memset(&handle.ha_fid, 0, sizeof(handle.ha_fid)); | |
115 | hsize = sizeof(xfs_fsid_t); | |
116 | } else { | |
1da177e4 LT |
117 | int lock_mode; |
118 | ||
1da177e4 | 119 | lock_mode = xfs_ilock_map_shared(ip); |
c6143911 CH |
120 | handle.ha_fid.fid_len = sizeof(xfs_fid_t) - |
121 | sizeof(handle.ha_fid.fid_len); | |
122 | handle.ha_fid.fid_pad = 0; | |
123 | handle.ha_fid.fid_gen = ip->i_d.di_gen; | |
124 | handle.ha_fid.fid_ino = ip->i_ino; | |
1da177e4 LT |
125 | xfs_iunlock_map_shared(ip, lock_mode); |
126 | ||
127 | hsize = XFS_HSIZE(handle); | |
128 | } | |
129 | ||
4346cdd4 | 130 | error = -EFAULT; |
743bb465 | 131 | if (copy_to_user(hreq->ohandle, &handle, hsize) || |
4346cdd4 CH |
132 | copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32))) |
133 | goto out_put; | |
1da177e4 | 134 | |
4346cdd4 CH |
135 | error = 0; |
136 | ||
137 | out_put: | |
138 | if (cmd == XFS_IOC_FD_TO_HANDLE) | |
139 | fput(file); | |
140 | else | |
141 | path_put(&path); | |
142 | return error; | |
1da177e4 LT |
143 | } |
144 | ||
1da177e4 | 145 | /* |
d296d30a CH |
146 | * No need to do permission checks on the various pathname components |
147 | * as the handle operations are privileged. | |
1da177e4 LT |
148 | */ |
149 | STATIC int | |
d296d30a CH |
150 | xfs_handle_acceptable( |
151 | void *context, | |
152 | struct dentry *dentry) | |
153 | { | |
154 | return 1; | |
155 | } | |
156 | ||
157 | /* | |
158 | * Convert userspace handle data into a dentry. | |
159 | */ | |
160 | struct dentry * | |
161 | xfs_handle_to_dentry( | |
162 | struct file *parfilp, | |
163 | void __user *uhandle, | |
164 | u32 hlen) | |
1da177e4 | 165 | { |
1da177e4 | 166 | xfs_handle_t handle; |
d296d30a | 167 | struct xfs_fid64 fid; |
1da177e4 LT |
168 | |
169 | /* | |
170 | * Only allow handle opens under a directory. | |
171 | */ | |
d296d30a CH |
172 | if (!S_ISDIR(parfilp->f_path.dentry->d_inode->i_mode)) |
173 | return ERR_PTR(-ENOTDIR); | |
174 | ||
175 | if (hlen != sizeof(xfs_handle_t)) | |
176 | return ERR_PTR(-EINVAL); | |
177 | if (copy_from_user(&handle, uhandle, hlen)) | |
178 | return ERR_PTR(-EFAULT); | |
179 | if (handle.ha_fid.fid_len != | |
180 | sizeof(handle.ha_fid) - sizeof(handle.ha_fid.fid_len)) | |
181 | return ERR_PTR(-EINVAL); | |
182 | ||
183 | memset(&fid, 0, sizeof(struct fid)); | |
184 | fid.ino = handle.ha_fid.fid_ino; | |
185 | fid.gen = handle.ha_fid.fid_gen; | |
186 | ||
187 | return exportfs_decode_fh(parfilp->f_path.mnt, (struct fid *)&fid, 3, | |
188 | FILEID_INO32_GEN | XFS_FILEID_TYPE_64FLAG, | |
189 | xfs_handle_acceptable, NULL); | |
190 | } | |
1da177e4 | 191 | |
d296d30a CH |
192 | STATIC struct dentry * |
193 | xfs_handlereq_to_dentry( | |
194 | struct file *parfilp, | |
195 | xfs_fsop_handlereq_t *hreq) | |
196 | { | |
197 | return xfs_handle_to_dentry(parfilp, hreq->ihandle, hreq->ihandlen); | |
1da177e4 LT |
198 | } |
199 | ||
d5547f9f | 200 | int |
1da177e4 | 201 | xfs_open_by_handle( |
1da177e4 | 202 | struct file *parfilp, |
d296d30a | 203 | xfs_fsop_handlereq_t *hreq) |
1da177e4 | 204 | { |
745ca247 | 205 | const struct cred *cred = current_cred(); |
1da177e4 | 206 | int error; |
d296d30a | 207 | int fd; |
1da177e4 LT |
208 | int permflag; |
209 | struct file *filp; | |
210 | struct inode *inode; | |
211 | struct dentry *dentry; | |
1da177e4 LT |
212 | |
213 | if (!capable(CAP_SYS_ADMIN)) | |
214 | return -XFS_ERROR(EPERM); | |
1da177e4 | 215 | |
d296d30a CH |
216 | dentry = xfs_handlereq_to_dentry(parfilp, hreq); |
217 | if (IS_ERR(dentry)) | |
218 | return PTR_ERR(dentry); | |
219 | inode = dentry->d_inode; | |
1da177e4 LT |
220 | |
221 | /* Restrict xfs_open_by_handle to directories & regular files. */ | |
222 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) { | |
d296d30a CH |
223 | error = -XFS_ERROR(EPERM); |
224 | goto out_dput; | |
1da177e4 LT |
225 | } |
226 | ||
227 | #if BITS_PER_LONG != 32 | |
743bb465 | 228 | hreq->oflags |= O_LARGEFILE; |
1da177e4 | 229 | #endif |
d296d30a | 230 | |
1da177e4 | 231 | /* Put open permission in namei format. */ |
743bb465 | 232 | permflag = hreq->oflags; |
1da177e4 LT |
233 | if ((permflag+1) & O_ACCMODE) |
234 | permflag++; | |
235 | if (permflag & O_TRUNC) | |
236 | permflag |= 2; | |
237 | ||
238 | if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) && | |
239 | (permflag & FMODE_WRITE) && IS_APPEND(inode)) { | |
d296d30a CH |
240 | error = -XFS_ERROR(EPERM); |
241 | goto out_dput; | |
1da177e4 LT |
242 | } |
243 | ||
244 | if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) { | |
d296d30a CH |
245 | error = -XFS_ERROR(EACCES); |
246 | goto out_dput; | |
1da177e4 LT |
247 | } |
248 | ||
249 | /* Can't write directories. */ | |
d296d30a CH |
250 | if (S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) { |
251 | error = -XFS_ERROR(EISDIR); | |
252 | goto out_dput; | |
1da177e4 LT |
253 | } |
254 | ||
d296d30a CH |
255 | fd = get_unused_fd(); |
256 | if (fd < 0) { | |
257 | error = fd; | |
258 | goto out_dput; | |
1da177e4 LT |
259 | } |
260 | ||
d296d30a CH |
261 | filp = dentry_open(dentry, mntget(parfilp->f_path.mnt), |
262 | hreq->oflags, cred); | |
1da177e4 | 263 | if (IS_ERR(filp)) { |
d296d30a CH |
264 | put_unused_fd(fd); |
265 | return PTR_ERR(filp); | |
1da177e4 | 266 | } |
4d4be482 | 267 | |
2e2e7bb1 | 268 | if (inode->i_mode & S_IFREG) { |
2e2e7bb1 | 269 | filp->f_flags |= O_NOATIME; |
4d4be482 | 270 | filp->f_mode |= FMODE_NOCMTIME; |
2e2e7bb1 | 271 | } |
1da177e4 | 272 | |
d296d30a CH |
273 | fd_install(fd, filp); |
274 | return fd; | |
275 | ||
276 | out_dput: | |
277 | dput(dentry); | |
278 | return error; | |
1da177e4 LT |
279 | } |
280 | ||
804c83c3 CH |
281 | /* |
282 | * This is a copy from fs/namei.c:vfs_readlink(), except for removing it's | |
283 | * unused first argument. | |
284 | */ | |
285 | STATIC int | |
286 | do_readlink( | |
287 | char __user *buffer, | |
288 | int buflen, | |
289 | const char *link) | |
290 | { | |
291 | int len; | |
292 | ||
293 | len = PTR_ERR(link); | |
294 | if (IS_ERR(link)) | |
295 | goto out; | |
296 | ||
297 | len = strlen(link); | |
298 | if (len > (unsigned) buflen) | |
299 | len = buflen; | |
300 | if (copy_to_user(buffer, link, len)) | |
301 | len = -EFAULT; | |
302 | out: | |
303 | return len; | |
304 | } | |
305 | ||
306 | ||
d5547f9f | 307 | int |
1da177e4 | 308 | xfs_readlink_by_handle( |
d296d30a CH |
309 | struct file *parfilp, |
310 | xfs_fsop_handlereq_t *hreq) | |
1da177e4 | 311 | { |
d296d30a | 312 | struct dentry *dentry; |
1da177e4 | 313 | __u32 olen; |
804c83c3 CH |
314 | void *link; |
315 | int error; | |
1da177e4 LT |
316 | |
317 | if (!capable(CAP_SYS_ADMIN)) | |
318 | return -XFS_ERROR(EPERM); | |
1da177e4 | 319 | |
d296d30a CH |
320 | dentry = xfs_handlereq_to_dentry(parfilp, hreq); |
321 | if (IS_ERR(dentry)) | |
322 | return PTR_ERR(dentry); | |
1da177e4 LT |
323 | |
324 | /* Restrict this handle operation to symlinks only. */ | |
d296d30a | 325 | if (!S_ISLNK(dentry->d_inode->i_mode)) { |
804c83c3 | 326 | error = -XFS_ERROR(EINVAL); |
d296d30a | 327 | goto out_dput; |
1da177e4 LT |
328 | } |
329 | ||
743bb465 | 330 | if (copy_from_user(&olen, hreq->ohandlen, sizeof(__u32))) { |
804c83c3 | 331 | error = -XFS_ERROR(EFAULT); |
d296d30a | 332 | goto out_dput; |
1da177e4 | 333 | } |
1da177e4 | 334 | |
804c83c3 | 335 | link = kmalloc(MAXPATHLEN+1, GFP_KERNEL); |
d296d30a CH |
336 | if (!link) { |
337 | error = -XFS_ERROR(ENOMEM); | |
338 | goto out_dput; | |
339 | } | |
1da177e4 | 340 | |
d296d30a | 341 | error = -xfs_readlink(XFS_I(dentry->d_inode), link); |
67fcaa73 | 342 | if (error) |
804c83c3 | 343 | goto out_kfree; |
743bb465 | 344 | error = do_readlink(hreq->ohandle, olen, link); |
804c83c3 CH |
345 | if (error) |
346 | goto out_kfree; | |
67fcaa73 | 347 | |
804c83c3 CH |
348 | out_kfree: |
349 | kfree(link); | |
d296d30a CH |
350 | out_dput: |
351 | dput(dentry); | |
804c83c3 | 352 | return error; |
1da177e4 LT |
353 | } |
354 | ||
355 | STATIC int | |
356 | xfs_fssetdm_by_handle( | |
d296d30a CH |
357 | struct file *parfilp, |
358 | void __user *arg) | |
1da177e4 LT |
359 | { |
360 | int error; | |
361 | struct fsdmidata fsd; | |
362 | xfs_fsop_setdm_handlereq_t dmhreq; | |
d296d30a | 363 | struct dentry *dentry; |
1da177e4 LT |
364 | |
365 | if (!capable(CAP_MKNOD)) | |
366 | return -XFS_ERROR(EPERM); | |
367 | if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t))) | |
368 | return -XFS_ERROR(EFAULT); | |
369 | ||
d296d30a CH |
370 | dentry = xfs_handlereq_to_dentry(parfilp, &dmhreq.hreq); |
371 | if (IS_ERR(dentry)) | |
372 | return PTR_ERR(dentry); | |
1da177e4 | 373 | |
d296d30a | 374 | if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) { |
6e7f75ea CH |
375 | error = -XFS_ERROR(EPERM); |
376 | goto out; | |
1da177e4 LT |
377 | } |
378 | ||
379 | if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) { | |
6e7f75ea CH |
380 | error = -XFS_ERROR(EFAULT); |
381 | goto out; | |
1da177e4 LT |
382 | } |
383 | ||
d296d30a | 384 | error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask, |
6e7f75ea | 385 | fsd.fsd_dmstate); |
1da177e4 | 386 | |
6e7f75ea | 387 | out: |
d296d30a | 388 | dput(dentry); |
6e7f75ea | 389 | return error; |
1da177e4 LT |
390 | } |
391 | ||
392 | STATIC int | |
393 | xfs_attrlist_by_handle( | |
d296d30a CH |
394 | struct file *parfilp, |
395 | void __user *arg) | |
1da177e4 | 396 | { |
d296d30a | 397 | int error = -ENOMEM; |
1da177e4 LT |
398 | attrlist_cursor_kern_t *cursor; |
399 | xfs_fsop_attrlist_handlereq_t al_hreq; | |
d296d30a | 400 | struct dentry *dentry; |
1da177e4 LT |
401 | char *kbuf; |
402 | ||
403 | if (!capable(CAP_SYS_ADMIN)) | |
404 | return -XFS_ERROR(EPERM); | |
405 | if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t))) | |
406 | return -XFS_ERROR(EFAULT); | |
407 | if (al_hreq.buflen > XATTR_LIST_MAX) | |
408 | return -XFS_ERROR(EINVAL); | |
409 | ||
90ad58a8 CH |
410 | /* |
411 | * Reject flags, only allow namespaces. | |
412 | */ | |
413 | if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) | |
414 | return -XFS_ERROR(EINVAL); | |
415 | ||
d296d30a CH |
416 | dentry = xfs_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
417 | if (IS_ERR(dentry)) | |
418 | return PTR_ERR(dentry); | |
1da177e4 | 419 | |
6762b938 | 420 | kbuf = kzalloc(al_hreq.buflen, GFP_KERNEL); |
1da177e4 | 421 | if (!kbuf) |
d296d30a | 422 | goto out_dput; |
1da177e4 LT |
423 | |
424 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
d296d30a | 425 | error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, |
739bfb2a | 426 | al_hreq.flags, cursor); |
1da177e4 LT |
427 | if (error) |
428 | goto out_kfree; | |
429 | ||
430 | if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen)) | |
431 | error = -EFAULT; | |
432 | ||
433 | out_kfree: | |
434 | kfree(kbuf); | |
d296d30a CH |
435 | out_dput: |
436 | dput(dentry); | |
437 | return error; | |
1da177e4 LT |
438 | } |
439 | ||
28750975 | 440 | int |
1da177e4 | 441 | xfs_attrmulti_attr_get( |
739bfb2a | 442 | struct inode *inode, |
a9273ca5 DC |
443 | unsigned char *name, |
444 | unsigned char __user *ubuf, | |
1da177e4 LT |
445 | __uint32_t *len, |
446 | __uint32_t flags) | |
447 | { | |
a9273ca5 | 448 | unsigned char *kbuf; |
1da177e4 | 449 | int error = EFAULT; |
e8b0ebaa | 450 | |
1da177e4 LT |
451 | if (*len > XATTR_SIZE_MAX) |
452 | return EINVAL; | |
453 | kbuf = kmalloc(*len, GFP_KERNEL); | |
454 | if (!kbuf) | |
455 | return ENOMEM; | |
456 | ||
e8b0ebaa | 457 | error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags); |
1da177e4 LT |
458 | if (error) |
459 | goto out_kfree; | |
460 | ||
461 | if (copy_to_user(ubuf, kbuf, *len)) | |
462 | error = EFAULT; | |
463 | ||
464 | out_kfree: | |
465 | kfree(kbuf); | |
466 | return error; | |
467 | } | |
468 | ||
28750975 | 469 | int |
1da177e4 | 470 | xfs_attrmulti_attr_set( |
739bfb2a | 471 | struct inode *inode, |
a9273ca5 DC |
472 | unsigned char *name, |
473 | const unsigned char __user *ubuf, | |
1da177e4 LT |
474 | __uint32_t len, |
475 | __uint32_t flags) | |
476 | { | |
a9273ca5 | 477 | unsigned char *kbuf; |
1da177e4 LT |
478 | int error = EFAULT; |
479 | ||
739bfb2a | 480 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
1da177e4 LT |
481 | return EPERM; |
482 | if (len > XATTR_SIZE_MAX) | |
483 | return EINVAL; | |
484 | ||
0e639bde LZ |
485 | kbuf = memdup_user(ubuf, len); |
486 | if (IS_ERR(kbuf)) | |
487 | return PTR_ERR(kbuf); | |
e8b0ebaa | 488 | |
739bfb2a | 489 | error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); |
1da177e4 | 490 | |
1da177e4 LT |
491 | return error; |
492 | } | |
493 | ||
28750975 | 494 | int |
1da177e4 | 495 | xfs_attrmulti_attr_remove( |
739bfb2a | 496 | struct inode *inode, |
a9273ca5 | 497 | unsigned char *name, |
1da177e4 LT |
498 | __uint32_t flags) |
499 | { | |
739bfb2a | 500 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
1da177e4 | 501 | return EPERM; |
739bfb2a | 502 | return xfs_attr_remove(XFS_I(inode), name, flags); |
1da177e4 LT |
503 | } |
504 | ||
505 | STATIC int | |
506 | xfs_attrmulti_by_handle( | |
42a74f20 | 507 | struct file *parfilp, |
d296d30a | 508 | void __user *arg) |
1da177e4 LT |
509 | { |
510 | int error; | |
511 | xfs_attr_multiop_t *ops; | |
512 | xfs_fsop_attrmulti_handlereq_t am_hreq; | |
d296d30a | 513 | struct dentry *dentry; |
1da177e4 | 514 | unsigned int i, size; |
a9273ca5 | 515 | unsigned char *attr_name; |
1da177e4 LT |
516 | |
517 | if (!capable(CAP_SYS_ADMIN)) | |
518 | return -XFS_ERROR(EPERM); | |
519 | if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t))) | |
520 | return -XFS_ERROR(EFAULT); | |
521 | ||
fda168c2 ZW |
522 | /* overflow check */ |
523 | if (am_hreq.opcount >= INT_MAX / sizeof(xfs_attr_multiop_t)) | |
524 | return -E2BIG; | |
525 | ||
d296d30a CH |
526 | dentry = xfs_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
527 | if (IS_ERR(dentry)) | |
528 | return PTR_ERR(dentry); | |
1da177e4 LT |
529 | |
530 | error = E2BIG; | |
e182f57a | 531 | size = am_hreq.opcount * sizeof(xfs_attr_multiop_t); |
1da177e4 | 532 | if (!size || size > 16 * PAGE_SIZE) |
d296d30a | 533 | goto out_dput; |
1da177e4 | 534 | |
0e639bde LZ |
535 | ops = memdup_user(am_hreq.ops, size); |
536 | if (IS_ERR(ops)) { | |
537 | error = PTR_ERR(ops); | |
d296d30a | 538 | goto out_dput; |
0e639bde | 539 | } |
1da177e4 LT |
540 | |
541 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
542 | if (!attr_name) | |
543 | goto out_kfree_ops; | |
544 | ||
1da177e4 LT |
545 | error = 0; |
546 | for (i = 0; i < am_hreq.opcount; i++) { | |
a9273ca5 | 547 | ops[i].am_error = strncpy_from_user((char *)attr_name, |
1da177e4 LT |
548 | ops[i].am_attrname, MAXNAMELEN); |
549 | if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) | |
550 | error = -ERANGE; | |
551 | if (ops[i].am_error < 0) | |
552 | break; | |
553 | ||
554 | switch (ops[i].am_opcode) { | |
555 | case ATTR_OP_GET: | |
d296d30a CH |
556 | ops[i].am_error = xfs_attrmulti_attr_get( |
557 | dentry->d_inode, attr_name, | |
558 | ops[i].am_attrvalue, &ops[i].am_length, | |
559 | ops[i].am_flags); | |
1da177e4 LT |
560 | break; |
561 | case ATTR_OP_SET: | |
42a74f20 DH |
562 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
563 | if (ops[i].am_error) | |
564 | break; | |
d296d30a CH |
565 | ops[i].am_error = xfs_attrmulti_attr_set( |
566 | dentry->d_inode, attr_name, | |
567 | ops[i].am_attrvalue, ops[i].am_length, | |
568 | ops[i].am_flags); | |
42a74f20 | 569 | mnt_drop_write(parfilp->f_path.mnt); |
1da177e4 LT |
570 | break; |
571 | case ATTR_OP_REMOVE: | |
42a74f20 DH |
572 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
573 | if (ops[i].am_error) | |
574 | break; | |
d296d30a CH |
575 | ops[i].am_error = xfs_attrmulti_attr_remove( |
576 | dentry->d_inode, attr_name, | |
577 | ops[i].am_flags); | |
42a74f20 | 578 | mnt_drop_write(parfilp->f_path.mnt); |
1da177e4 LT |
579 | break; |
580 | default: | |
581 | ops[i].am_error = EINVAL; | |
582 | } | |
583 | } | |
584 | ||
585 | if (copy_to_user(am_hreq.ops, ops, size)) | |
586 | error = XFS_ERROR(EFAULT); | |
587 | ||
588 | kfree(attr_name); | |
589 | out_kfree_ops: | |
590 | kfree(ops); | |
d296d30a CH |
591 | out_dput: |
592 | dput(dentry); | |
1da177e4 LT |
593 | return -error; |
594 | } | |
595 | ||
d5547f9f | 596 | int |
1da177e4 | 597 | xfs_ioc_space( |
993386c1 | 598 | struct xfs_inode *ip, |
f37ea149 | 599 | struct inode *inode, |
1da177e4 LT |
600 | struct file *filp, |
601 | int ioflags, | |
602 | unsigned int cmd, | |
743bb465 | 603 | xfs_flock64_t *bf) |
1da177e4 | 604 | { |
1da177e4 LT |
605 | int attr_flags = 0; |
606 | int error; | |
607 | ||
743bb465 | 608 | /* |
609 | * Only allow the sys admin to reserve space unless | |
610 | * unwritten extents are enabled. | |
611 | */ | |
612 | if (!xfs_sb_version_hasextflgbit(&ip->i_mount->m_sb) && | |
613 | !capable(CAP_SYS_ADMIN)) | |
614 | return -XFS_ERROR(EPERM); | |
615 | ||
f37ea149 | 616 | if (inode->i_flags & (S_IMMUTABLE|S_APPEND)) |
1da177e4 LT |
617 | return -XFS_ERROR(EPERM); |
618 | ||
ad4a8ac4 | 619 | if (!(filp->f_mode & FMODE_WRITE)) |
1da177e4 LT |
620 | return -XFS_ERROR(EBADF); |
621 | ||
f37ea149 | 622 | if (!S_ISREG(inode->i_mode)) |
1da177e4 LT |
623 | return -XFS_ERROR(EINVAL); |
624 | ||
1da177e4 | 625 | if (filp->f_flags & (O_NDELAY|O_NONBLOCK)) |
0f285c8a | 626 | attr_flags |= XFS_ATTR_NONBLOCK; |
1da177e4 | 627 | if (ioflags & IO_INVIS) |
0f285c8a | 628 | attr_flags |= XFS_ATTR_DMI; |
1da177e4 | 629 | |
743bb465 | 630 | error = xfs_change_file_space(ip, cmd, bf, filp->f_pos, attr_flags); |
1da177e4 LT |
631 | return -error; |
632 | } | |
633 | ||
634 | STATIC int | |
635 | xfs_ioc_bulkstat( | |
636 | xfs_mount_t *mp, | |
637 | unsigned int cmd, | |
638 | void __user *arg) | |
639 | { | |
640 | xfs_fsop_bulkreq_t bulkreq; | |
641 | int count; /* # of records returned */ | |
642 | xfs_ino_t inlast; /* last inode number */ | |
643 | int done; | |
644 | int error; | |
645 | ||
646 | /* done = 1 if there are more stats to get and if bulkstat */ | |
647 | /* should be called again (unused here, but used in dmapi) */ | |
648 | ||
649 | if (!capable(CAP_SYS_ADMIN)) | |
650 | return -EPERM; | |
651 | ||
652 | if (XFS_FORCED_SHUTDOWN(mp)) | |
653 | return -XFS_ERROR(EIO); | |
654 | ||
655 | if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t))) | |
656 | return -XFS_ERROR(EFAULT); | |
657 | ||
658 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) | |
659 | return -XFS_ERROR(EFAULT); | |
660 | ||
661 | if ((count = bulkreq.icount) <= 0) | |
662 | return -XFS_ERROR(EINVAL); | |
663 | ||
cd57e594 LM |
664 | if (bulkreq.ubuffer == NULL) |
665 | return -XFS_ERROR(EINVAL); | |
666 | ||
1da177e4 LT |
667 | if (cmd == XFS_IOC_FSINUMBERS) |
668 | error = xfs_inumbers(mp, &inlast, &count, | |
faa63e95 | 669 | bulkreq.ubuffer, xfs_inumbers_fmt); |
1da177e4 LT |
670 | else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE) |
671 | error = xfs_bulkstat_single(mp, &inlast, | |
672 | bulkreq.ubuffer, &done); | |
cd57e594 | 673 | else /* XFS_IOC_FSBULKSTAT */ |
7dce11db CH |
674 | error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one, |
675 | sizeof(xfs_bstat_t), bulkreq.ubuffer, | |
676 | &done); | |
1da177e4 LT |
677 | |
678 | if (error) | |
679 | return -error; | |
680 | ||
681 | if (bulkreq.ocount != NULL) { | |
682 | if (copy_to_user(bulkreq.lastip, &inlast, | |
683 | sizeof(xfs_ino_t))) | |
684 | return -XFS_ERROR(EFAULT); | |
685 | ||
686 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
687 | return -XFS_ERROR(EFAULT); | |
688 | } | |
689 | ||
690 | return 0; | |
691 | } | |
692 | ||
693 | STATIC int | |
694 | xfs_ioc_fsgeometry_v1( | |
695 | xfs_mount_t *mp, | |
696 | void __user *arg) | |
697 | { | |
eeb2036b | 698 | xfs_fsop_geom_t fsgeo; |
1da177e4 LT |
699 | int error; |
700 | ||
eeb2036b | 701 | error = xfs_fs_geometry(mp, &fsgeo, 3); |
1da177e4 LT |
702 | if (error) |
703 | return -error; | |
704 | ||
eeb2036b AE |
705 | /* |
706 | * Caller should have passed an argument of type | |
707 | * xfs_fsop_geom_v1_t. This is a proper subset of the | |
708 | * xfs_fsop_geom_t that xfs_fs_geometry() fills in. | |
709 | */ | |
710 | if (copy_to_user(arg, &fsgeo, sizeof(xfs_fsop_geom_v1_t))) | |
1da177e4 LT |
711 | return -XFS_ERROR(EFAULT); |
712 | return 0; | |
713 | } | |
714 | ||
715 | STATIC int | |
716 | xfs_ioc_fsgeometry( | |
717 | xfs_mount_t *mp, | |
718 | void __user *arg) | |
719 | { | |
720 | xfs_fsop_geom_t fsgeo; | |
721 | int error; | |
722 | ||
723 | error = xfs_fs_geometry(mp, &fsgeo, 4); | |
724 | if (error) | |
725 | return -error; | |
726 | ||
727 | if (copy_to_user(arg, &fsgeo, sizeof(fsgeo))) | |
728 | return -XFS_ERROR(EFAULT); | |
729 | return 0; | |
730 | } | |
731 | ||
732 | /* | |
733 | * Linux extended inode flags interface. | |
734 | */ | |
1da177e4 LT |
735 | |
736 | STATIC unsigned int | |
737 | xfs_merge_ioc_xflags( | |
738 | unsigned int flags, | |
739 | unsigned int start) | |
740 | { | |
741 | unsigned int xflags = start; | |
742 | ||
39058a0e | 743 | if (flags & FS_IMMUTABLE_FL) |
1da177e4 LT |
744 | xflags |= XFS_XFLAG_IMMUTABLE; |
745 | else | |
746 | xflags &= ~XFS_XFLAG_IMMUTABLE; | |
39058a0e | 747 | if (flags & FS_APPEND_FL) |
1da177e4 LT |
748 | xflags |= XFS_XFLAG_APPEND; |
749 | else | |
750 | xflags &= ~XFS_XFLAG_APPEND; | |
39058a0e | 751 | if (flags & FS_SYNC_FL) |
1da177e4 LT |
752 | xflags |= XFS_XFLAG_SYNC; |
753 | else | |
754 | xflags &= ~XFS_XFLAG_SYNC; | |
39058a0e | 755 | if (flags & FS_NOATIME_FL) |
1da177e4 LT |
756 | xflags |= XFS_XFLAG_NOATIME; |
757 | else | |
758 | xflags &= ~XFS_XFLAG_NOATIME; | |
39058a0e | 759 | if (flags & FS_NODUMP_FL) |
1da177e4 LT |
760 | xflags |= XFS_XFLAG_NODUMP; |
761 | else | |
762 | xflags &= ~XFS_XFLAG_NODUMP; | |
763 | ||
764 | return xflags; | |
765 | } | |
766 | ||
767 | STATIC unsigned int | |
768 | xfs_di2lxflags( | |
769 | __uint16_t di_flags) | |
770 | { | |
771 | unsigned int flags = 0; | |
772 | ||
773 | if (di_flags & XFS_DIFLAG_IMMUTABLE) | |
39058a0e | 774 | flags |= FS_IMMUTABLE_FL; |
1da177e4 | 775 | if (di_flags & XFS_DIFLAG_APPEND) |
39058a0e | 776 | flags |= FS_APPEND_FL; |
1da177e4 | 777 | if (di_flags & XFS_DIFLAG_SYNC) |
39058a0e | 778 | flags |= FS_SYNC_FL; |
1da177e4 | 779 | if (di_flags & XFS_DIFLAG_NOATIME) |
39058a0e | 780 | flags |= FS_NOATIME_FL; |
1da177e4 | 781 | if (di_flags & XFS_DIFLAG_NODUMP) |
39058a0e | 782 | flags |= FS_NODUMP_FL; |
1da177e4 LT |
783 | return flags; |
784 | } | |
785 | ||
c83bfab1 CH |
786 | STATIC int |
787 | xfs_ioc_fsgetxattr( | |
788 | xfs_inode_t *ip, | |
789 | int attr, | |
790 | void __user *arg) | |
791 | { | |
792 | struct fsxattr fa; | |
793 | ||
a122eb2f DR |
794 | memset(&fa, 0, sizeof(struct fsxattr)); |
795 | ||
c83bfab1 CH |
796 | xfs_ilock(ip, XFS_ILOCK_SHARED); |
797 | fa.fsx_xflags = xfs_ip2xflags(ip); | |
798 | fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog; | |
6743099c | 799 | fa.fsx_projid = xfs_get_projid(ip); |
c83bfab1 CH |
800 | |
801 | if (attr) { | |
802 | if (ip->i_afp) { | |
803 | if (ip->i_afp->if_flags & XFS_IFEXTENTS) | |
804 | fa.fsx_nextents = ip->i_afp->if_bytes / | |
805 | sizeof(xfs_bmbt_rec_t); | |
806 | else | |
807 | fa.fsx_nextents = ip->i_d.di_anextents; | |
808 | } else | |
809 | fa.fsx_nextents = 0; | |
810 | } else { | |
811 | if (ip->i_df.if_flags & XFS_IFEXTENTS) | |
812 | fa.fsx_nextents = ip->i_df.if_bytes / | |
813 | sizeof(xfs_bmbt_rec_t); | |
814 | else | |
815 | fa.fsx_nextents = ip->i_d.di_nextents; | |
816 | } | |
817 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
818 | ||
819 | if (copy_to_user(arg, &fa, sizeof(fa))) | |
820 | return -EFAULT; | |
821 | return 0; | |
822 | } | |
823 | ||
25fe55e8 CH |
824 | STATIC void |
825 | xfs_set_diflags( | |
826 | struct xfs_inode *ip, | |
827 | unsigned int xflags) | |
828 | { | |
829 | unsigned int di_flags; | |
830 | ||
831 | /* can't set PREALLOC this way, just preserve it */ | |
832 | di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC); | |
833 | if (xflags & XFS_XFLAG_IMMUTABLE) | |
834 | di_flags |= XFS_DIFLAG_IMMUTABLE; | |
835 | if (xflags & XFS_XFLAG_APPEND) | |
836 | di_flags |= XFS_DIFLAG_APPEND; | |
837 | if (xflags & XFS_XFLAG_SYNC) | |
838 | di_flags |= XFS_DIFLAG_SYNC; | |
839 | if (xflags & XFS_XFLAG_NOATIME) | |
840 | di_flags |= XFS_DIFLAG_NOATIME; | |
841 | if (xflags & XFS_XFLAG_NODUMP) | |
842 | di_flags |= XFS_DIFLAG_NODUMP; | |
843 | if (xflags & XFS_XFLAG_PROJINHERIT) | |
844 | di_flags |= XFS_DIFLAG_PROJINHERIT; | |
845 | if (xflags & XFS_XFLAG_NODEFRAG) | |
846 | di_flags |= XFS_DIFLAG_NODEFRAG; | |
847 | if (xflags & XFS_XFLAG_FILESTREAM) | |
848 | di_flags |= XFS_DIFLAG_FILESTREAM; | |
849 | if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) { | |
850 | if (xflags & XFS_XFLAG_RTINHERIT) | |
851 | di_flags |= XFS_DIFLAG_RTINHERIT; | |
852 | if (xflags & XFS_XFLAG_NOSYMLINKS) | |
853 | di_flags |= XFS_DIFLAG_NOSYMLINKS; | |
854 | if (xflags & XFS_XFLAG_EXTSZINHERIT) | |
855 | di_flags |= XFS_DIFLAG_EXTSZINHERIT; | |
856 | } else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) { | |
857 | if (xflags & XFS_XFLAG_REALTIME) | |
858 | di_flags |= XFS_DIFLAG_REALTIME; | |
859 | if (xflags & XFS_XFLAG_EXTSIZE) | |
860 | di_flags |= XFS_DIFLAG_EXTSIZE; | |
861 | } | |
862 | ||
863 | ip->i_d.di_flags = di_flags; | |
864 | } | |
865 | ||
f13fae2d CH |
866 | STATIC void |
867 | xfs_diflags_to_linux( | |
868 | struct xfs_inode *ip) | |
869 | { | |
e4f75291 | 870 | struct inode *inode = VFS_I(ip); |
f13fae2d CH |
871 | unsigned int xflags = xfs_ip2xflags(ip); |
872 | ||
873 | if (xflags & XFS_XFLAG_IMMUTABLE) | |
874 | inode->i_flags |= S_IMMUTABLE; | |
875 | else | |
876 | inode->i_flags &= ~S_IMMUTABLE; | |
877 | if (xflags & XFS_XFLAG_APPEND) | |
878 | inode->i_flags |= S_APPEND; | |
879 | else | |
880 | inode->i_flags &= ~S_APPEND; | |
881 | if (xflags & XFS_XFLAG_SYNC) | |
882 | inode->i_flags |= S_SYNC; | |
883 | else | |
884 | inode->i_flags &= ~S_SYNC; | |
885 | if (xflags & XFS_XFLAG_NOATIME) | |
886 | inode->i_flags |= S_NOATIME; | |
887 | else | |
888 | inode->i_flags &= ~S_NOATIME; | |
889 | } | |
25fe55e8 CH |
890 | |
891 | #define FSX_PROJID 1 | |
892 | #define FSX_EXTSIZE 2 | |
893 | #define FSX_XFLAGS 4 | |
894 | #define FSX_NONBLOCK 8 | |
895 | ||
896 | STATIC int | |
897 | xfs_ioctl_setattr( | |
898 | xfs_inode_t *ip, | |
899 | struct fsxattr *fa, | |
900 | int mask) | |
901 | { | |
902 | struct xfs_mount *mp = ip->i_mount; | |
903 | struct xfs_trans *tp; | |
904 | unsigned int lock_flags = 0; | |
7d095257 CH |
905 | struct xfs_dquot *udqp = NULL; |
906 | struct xfs_dquot *gdqp = NULL; | |
25fe55e8 CH |
907 | struct xfs_dquot *olddquot = NULL; |
908 | int code; | |
909 | ||
cca28fb8 | 910 | trace_xfs_ioctl_setattr(ip); |
25fe55e8 CH |
911 | |
912 | if (mp->m_flags & XFS_MOUNT_RDONLY) | |
913 | return XFS_ERROR(EROFS); | |
914 | if (XFS_FORCED_SHUTDOWN(mp)) | |
915 | return XFS_ERROR(EIO); | |
916 | ||
23963e54 | 917 | /* |
6743099c | 918 | * Disallow 32bit project ids when projid32bit feature is not enabled. |
23963e54 | 919 | */ |
6743099c AM |
920 | if ((mask & FSX_PROJID) && (fa->fsx_projid > (__uint16_t)-1) && |
921 | !xfs_sb_version_hasprojid32bit(&ip->i_mount->m_sb)) | |
23963e54 AM |
922 | return XFS_ERROR(EINVAL); |
923 | ||
25fe55e8 CH |
924 | /* |
925 | * If disk quotas is on, we make sure that the dquots do exist on disk, | |
926 | * before we start any other transactions. Trying to do this later | |
927 | * is messy. We don't care to take a readlock to look at the ids | |
928 | * in inode here, because we can't hold it across the trans_reserve. | |
929 | * If the IDs do change before we take the ilock, we're covered | |
930 | * because the i_*dquot fields will get updated anyway. | |
931 | */ | |
932 | if (XFS_IS_QUOTA_ON(mp) && (mask & FSX_PROJID)) { | |
7d095257 | 933 | code = xfs_qm_vop_dqalloc(ip, ip->i_d.di_uid, |
25fe55e8 CH |
934 | ip->i_d.di_gid, fa->fsx_projid, |
935 | XFS_QMOPT_PQUOTA, &udqp, &gdqp); | |
936 | if (code) | |
937 | return code; | |
938 | } | |
939 | ||
940 | /* | |
941 | * For the other attributes, we acquire the inode lock and | |
942 | * first do an error checking pass. | |
943 | */ | |
944 | tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE); | |
945 | code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0); | |
946 | if (code) | |
947 | goto error_return; | |
948 | ||
949 | lock_flags = XFS_ILOCK_EXCL; | |
950 | xfs_ilock(ip, lock_flags); | |
951 | ||
952 | /* | |
953 | * CAP_FOWNER overrides the following restrictions: | |
954 | * | |
955 | * The user ID of the calling process must be equal | |
956 | * to the file owner ID, except in cases where the | |
957 | * CAP_FSETID capability is applicable. | |
958 | */ | |
91b77712 | 959 | if (current_fsuid() != ip->i_d.di_uid && !capable(CAP_FOWNER)) { |
25fe55e8 CH |
960 | code = XFS_ERROR(EPERM); |
961 | goto error_return; | |
962 | } | |
963 | ||
964 | /* | |
965 | * Do a quota reservation only if projid is actually going to change. | |
966 | */ | |
967 | if (mask & FSX_PROJID) { | |
7d095257 CH |
968 | if (XFS_IS_QUOTA_RUNNING(mp) && |
969 | XFS_IS_PQUOTA_ON(mp) && | |
6743099c | 970 | xfs_get_projid(ip) != fa->fsx_projid) { |
25fe55e8 | 971 | ASSERT(tp); |
7d095257 | 972 | code = xfs_qm_vop_chown_reserve(tp, ip, udqp, gdqp, |
25fe55e8 CH |
973 | capable(CAP_FOWNER) ? |
974 | XFS_QMOPT_FORCE_RES : 0); | |
975 | if (code) /* out of quota */ | |
976 | goto error_return; | |
977 | } | |
978 | } | |
979 | ||
980 | if (mask & FSX_EXTSIZE) { | |
981 | /* | |
982 | * Can't change extent size if any extents are allocated. | |
983 | */ | |
984 | if (ip->i_d.di_nextents && | |
985 | ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != | |
986 | fa->fsx_extsize)) { | |
987 | code = XFS_ERROR(EINVAL); /* EFBIG? */ | |
988 | goto error_return; | |
989 | } | |
990 | ||
991 | /* | |
992 | * Extent size must be a multiple of the appropriate block | |
5315837d DC |
993 | * size, if set at all. It must also be smaller than the |
994 | * maximum extent size supported by the filesystem. | |
995 | * | |
996 | * Also, for non-realtime files, limit the extent size hint to | |
997 | * half the size of the AGs in the filesystem so alignment | |
998 | * doesn't result in extents larger than an AG. | |
25fe55e8 CH |
999 | */ |
1000 | if (fa->fsx_extsize != 0) { | |
5315837d DC |
1001 | xfs_extlen_t size; |
1002 | xfs_fsblock_t extsize_fsb; | |
1003 | ||
1004 | extsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_extsize); | |
1005 | if (extsize_fsb > MAXEXTLEN) { | |
1006 | code = XFS_ERROR(EINVAL); | |
1007 | goto error_return; | |
1008 | } | |
25fe55e8 CH |
1009 | |
1010 | if (XFS_IS_REALTIME_INODE(ip) || | |
1011 | ((mask & FSX_XFLAGS) && | |
1012 | (fa->fsx_xflags & XFS_XFLAG_REALTIME))) { | |
1013 | size = mp->m_sb.sb_rextsize << | |
1014 | mp->m_sb.sb_blocklog; | |
1015 | } else { | |
1016 | size = mp->m_sb.sb_blocksize; | |
5315837d DC |
1017 | if (extsize_fsb > mp->m_sb.sb_agblocks / 2) { |
1018 | code = XFS_ERROR(EINVAL); | |
1019 | goto error_return; | |
1020 | } | |
25fe55e8 CH |
1021 | } |
1022 | ||
1023 | if (fa->fsx_extsize % size) { | |
1024 | code = XFS_ERROR(EINVAL); | |
1025 | goto error_return; | |
1026 | } | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | ||
1031 | if (mask & FSX_XFLAGS) { | |
1032 | /* | |
1033 | * Can't change realtime flag if any extents are allocated. | |
1034 | */ | |
1035 | if ((ip->i_d.di_nextents || ip->i_delayed_blks) && | |
1036 | (XFS_IS_REALTIME_INODE(ip)) != | |
1037 | (fa->fsx_xflags & XFS_XFLAG_REALTIME)) { | |
1038 | code = XFS_ERROR(EINVAL); /* EFBIG? */ | |
1039 | goto error_return; | |
1040 | } | |
1041 | ||
1042 | /* | |
1043 | * If realtime flag is set then must have realtime data. | |
1044 | */ | |
1045 | if ((fa->fsx_xflags & XFS_XFLAG_REALTIME)) { | |
1046 | if ((mp->m_sb.sb_rblocks == 0) || | |
1047 | (mp->m_sb.sb_rextsize == 0) || | |
1048 | (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) { | |
1049 | code = XFS_ERROR(EINVAL); | |
1050 | goto error_return; | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | /* | |
1055 | * Can't modify an immutable/append-only file unless | |
1056 | * we have appropriate permission. | |
1057 | */ | |
1058 | if ((ip->i_d.di_flags & | |
1059 | (XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) || | |
1060 | (fa->fsx_xflags & | |
1061 | (XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) && | |
1062 | !capable(CAP_LINUX_IMMUTABLE)) { | |
1063 | code = XFS_ERROR(EPERM); | |
1064 | goto error_return; | |
1065 | } | |
1066 | } | |
1067 | ||
898621d5 | 1068 | xfs_trans_ijoin(tp, ip); |
25fe55e8 CH |
1069 | |
1070 | /* | |
1071 | * Change file ownership. Must be the owner or privileged. | |
25fe55e8 CH |
1072 | */ |
1073 | if (mask & FSX_PROJID) { | |
1074 | /* | |
1075 | * CAP_FSETID overrides the following restrictions: | |
1076 | * | |
1077 | * The set-user-ID and set-group-ID bits of a file will be | |
1078 | * cleared upon successful return from chown() | |
1079 | */ | |
1080 | if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) && | |
1081 | !capable(CAP_FSETID)) | |
1082 | ip->i_d.di_mode &= ~(S_ISUID|S_ISGID); | |
1083 | ||
1084 | /* | |
1085 | * Change the ownerships and register quota modifications | |
1086 | * in the transaction. | |
1087 | */ | |
6743099c | 1088 | if (xfs_get_projid(ip) != fa->fsx_projid) { |
7d095257 CH |
1089 | if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp)) { |
1090 | olddquot = xfs_qm_vop_chown(tp, ip, | |
25fe55e8 CH |
1091 | &ip->i_gdquot, gdqp); |
1092 | } | |
6743099c | 1093 | xfs_set_projid(ip, fa->fsx_projid); |
25fe55e8 CH |
1094 | |
1095 | /* | |
1096 | * We may have to rev the inode as well as | |
1097 | * the superblock version number since projids didn't | |
1098 | * exist before DINODE_VERSION_2 and SB_VERSION_NLINK. | |
1099 | */ | |
51ce16d5 | 1100 | if (ip->i_d.di_version == 1) |
25fe55e8 CH |
1101 | xfs_bump_ino_vers2(tp, ip); |
1102 | } | |
1103 | ||
1104 | } | |
1105 | ||
1106 | if (mask & FSX_EXTSIZE) | |
1107 | ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; | |
f13fae2d | 1108 | if (mask & FSX_XFLAGS) { |
25fe55e8 | 1109 | xfs_set_diflags(ip, fa->fsx_xflags); |
f13fae2d CH |
1110 | xfs_diflags_to_linux(ip); |
1111 | } | |
25fe55e8 | 1112 | |
dcd79a14 | 1113 | xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); |
25fe55e8 | 1114 | xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); |
25fe55e8 CH |
1115 | |
1116 | XFS_STATS_INC(xs_ig_attrchg); | |
1117 | ||
1118 | /* | |
1119 | * If this is a synchronous mount, make sure that the | |
1120 | * transaction goes to disk before returning to the user. | |
1121 | * This is slightly sub-optimal in that truncates require | |
1122 | * two sync transactions instead of one for wsync filesystems. | |
1123 | * One for the truncate and one for the timestamps since we | |
1124 | * don't want to change the timestamps unless we're sure the | |
1125 | * truncate worked. Truncates are less than 1% of the laddis | |
1126 | * mix so this probably isn't worth the trouble to optimize. | |
1127 | */ | |
1128 | if (mp->m_flags & XFS_MOUNT_WSYNC) | |
1129 | xfs_trans_set_sync(tp); | |
1130 | code = xfs_trans_commit(tp, 0); | |
1131 | xfs_iunlock(ip, lock_flags); | |
1132 | ||
1133 | /* | |
1134 | * Release any dquot(s) the inode had kept before chown. | |
1135 | */ | |
7d095257 CH |
1136 | xfs_qm_dqrele(olddquot); |
1137 | xfs_qm_dqrele(udqp); | |
1138 | xfs_qm_dqrele(gdqp); | |
25fe55e8 | 1139 | |
288699fe | 1140 | return code; |
25fe55e8 CH |
1141 | |
1142 | error_return: | |
7d095257 CH |
1143 | xfs_qm_dqrele(udqp); |
1144 | xfs_qm_dqrele(gdqp); | |
25fe55e8 CH |
1145 | xfs_trans_cancel(tp, 0); |
1146 | if (lock_flags) | |
1147 | xfs_iunlock(ip, lock_flags); | |
1148 | return code; | |
1149 | } | |
1150 | ||
1da177e4 | 1151 | STATIC int |
df26cfe8 | 1152 | xfs_ioc_fssetxattr( |
1da177e4 LT |
1153 | xfs_inode_t *ip, |
1154 | struct file *filp, | |
1da177e4 LT |
1155 | void __user *arg) |
1156 | { | |
1157 | struct fsxattr fa; | |
25fe55e8 | 1158 | unsigned int mask; |
df26cfe8 LM |
1159 | |
1160 | if (copy_from_user(&fa, arg, sizeof(fa))) | |
1161 | return -EFAULT; | |
1da177e4 | 1162 | |
25fe55e8 | 1163 | mask = FSX_XFLAGS | FSX_EXTSIZE | FSX_PROJID; |
df26cfe8 | 1164 | if (filp->f_flags & (O_NDELAY|O_NONBLOCK)) |
25fe55e8 | 1165 | mask |= FSX_NONBLOCK; |
1da177e4 | 1166 | |
25fe55e8 | 1167 | return -xfs_ioctl_setattr(ip, &fa, mask); |
df26cfe8 | 1168 | } |
1da177e4 | 1169 | |
df26cfe8 LM |
1170 | STATIC int |
1171 | xfs_ioc_getxflags( | |
1172 | xfs_inode_t *ip, | |
1173 | void __user *arg) | |
1174 | { | |
1175 | unsigned int flags; | |
1da177e4 | 1176 | |
df26cfe8 LM |
1177 | flags = xfs_di2lxflags(ip->i_d.di_flags); |
1178 | if (copy_to_user(arg, &flags, sizeof(flags))) | |
1179 | return -EFAULT; | |
1180 | return 0; | |
1181 | } | |
1da177e4 | 1182 | |
df26cfe8 LM |
1183 | STATIC int |
1184 | xfs_ioc_setxflags( | |
1185 | xfs_inode_t *ip, | |
1186 | struct file *filp, | |
1187 | void __user *arg) | |
1188 | { | |
25fe55e8 | 1189 | struct fsxattr fa; |
df26cfe8 | 1190 | unsigned int flags; |
25fe55e8 | 1191 | unsigned int mask; |
1da177e4 | 1192 | |
df26cfe8 LM |
1193 | if (copy_from_user(&flags, arg, sizeof(flags))) |
1194 | return -EFAULT; | |
1da177e4 | 1195 | |
df26cfe8 LM |
1196 | if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \ |
1197 | FS_NOATIME_FL | FS_NODUMP_FL | \ | |
1198 | FS_SYNC_FL)) | |
1199 | return -EOPNOTSUPP; | |
1da177e4 | 1200 | |
25fe55e8 | 1201 | mask = FSX_XFLAGS; |
df26cfe8 | 1202 | if (filp->f_flags & (O_NDELAY|O_NONBLOCK)) |
25fe55e8 CH |
1203 | mask |= FSX_NONBLOCK; |
1204 | fa.fsx_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip)); | |
1da177e4 | 1205 | |
25fe55e8 | 1206 | return -xfs_ioctl_setattr(ip, &fa, mask); |
1da177e4 LT |
1207 | } |
1208 | ||
8a7141a8 ES |
1209 | STATIC int |
1210 | xfs_getbmap_format(void **ap, struct getbmapx *bmv, int *full) | |
1211 | { | |
1212 | struct getbmap __user *base = *ap; | |
1213 | ||
1214 | /* copy only getbmap portion (not getbmapx) */ | |
1215 | if (copy_to_user(base, bmv, sizeof(struct getbmap))) | |
1216 | return XFS_ERROR(EFAULT); | |
1217 | ||
1218 | *ap += sizeof(struct getbmap); | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1da177e4 LT |
1222 | STATIC int |
1223 | xfs_ioc_getbmap( | |
993386c1 | 1224 | struct xfs_inode *ip, |
1da177e4 LT |
1225 | int ioflags, |
1226 | unsigned int cmd, | |
1227 | void __user *arg) | |
1228 | { | |
8a7141a8 | 1229 | struct getbmapx bmx; |
1da177e4 LT |
1230 | int error; |
1231 | ||
8a7141a8 | 1232 | if (copy_from_user(&bmx, arg, sizeof(struct getbmapx))) |
1da177e4 LT |
1233 | return -XFS_ERROR(EFAULT); |
1234 | ||
8a7141a8 | 1235 | if (bmx.bmv_count < 2) |
1da177e4 LT |
1236 | return -XFS_ERROR(EINVAL); |
1237 | ||
8a7141a8 | 1238 | bmx.bmv_iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0); |
1da177e4 | 1239 | if (ioflags & IO_INVIS) |
8a7141a8 | 1240 | bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ; |
1da177e4 | 1241 | |
8a7141a8 ES |
1242 | error = xfs_getbmap(ip, &bmx, xfs_getbmap_format, |
1243 | (struct getbmap *)arg+1); | |
1da177e4 LT |
1244 | if (error) |
1245 | return -error; | |
1246 | ||
8a7141a8 ES |
1247 | /* copy back header - only size of getbmap */ |
1248 | if (copy_to_user(arg, &bmx, sizeof(struct getbmap))) | |
1da177e4 LT |
1249 | return -XFS_ERROR(EFAULT); |
1250 | return 0; | |
1251 | } | |
1252 | ||
8a7141a8 ES |
1253 | STATIC int |
1254 | xfs_getbmapx_format(void **ap, struct getbmapx *bmv, int *full) | |
1255 | { | |
1256 | struct getbmapx __user *base = *ap; | |
1257 | ||
1258 | if (copy_to_user(base, bmv, sizeof(struct getbmapx))) | |
1259 | return XFS_ERROR(EFAULT); | |
1260 | ||
1261 | *ap += sizeof(struct getbmapx); | |
1262 | return 0; | |
1263 | } | |
1264 | ||
1da177e4 LT |
1265 | STATIC int |
1266 | xfs_ioc_getbmapx( | |
993386c1 | 1267 | struct xfs_inode *ip, |
1da177e4 LT |
1268 | void __user *arg) |
1269 | { | |
1270 | struct getbmapx bmx; | |
1da177e4 LT |
1271 | int error; |
1272 | ||
1273 | if (copy_from_user(&bmx, arg, sizeof(bmx))) | |
1274 | return -XFS_ERROR(EFAULT); | |
1275 | ||
1276 | if (bmx.bmv_count < 2) | |
1277 | return -XFS_ERROR(EINVAL); | |
1278 | ||
8a7141a8 | 1279 | if (bmx.bmv_iflags & (~BMV_IF_VALID)) |
1da177e4 LT |
1280 | return -XFS_ERROR(EINVAL); |
1281 | ||
8a7141a8 ES |
1282 | error = xfs_getbmap(ip, &bmx, xfs_getbmapx_format, |
1283 | (struct getbmapx *)arg+1); | |
1da177e4 LT |
1284 | if (error) |
1285 | return -error; | |
1286 | ||
8a7141a8 ES |
1287 | /* copy back header */ |
1288 | if (copy_to_user(arg, &bmx, sizeof(struct getbmapx))) | |
1da177e4 LT |
1289 | return -XFS_ERROR(EFAULT); |
1290 | ||
1291 | return 0; | |
1292 | } | |
df26cfe8 | 1293 | |
4d4be482 CH |
1294 | /* |
1295 | * Note: some of the ioctl's return positive numbers as a | |
1296 | * byte count indicating success, such as readlink_by_handle. | |
1297 | * So we don't "sign flip" like most other routines. This means | |
1298 | * true errors need to be returned as a negative value. | |
1299 | */ | |
1300 | long | |
1301 | xfs_file_ioctl( | |
df26cfe8 | 1302 | struct file *filp, |
df26cfe8 | 1303 | unsigned int cmd, |
4d4be482 | 1304 | unsigned long p) |
df26cfe8 LM |
1305 | { |
1306 | struct inode *inode = filp->f_path.dentry->d_inode; | |
4d4be482 CH |
1307 | struct xfs_inode *ip = XFS_I(inode); |
1308 | struct xfs_mount *mp = ip->i_mount; | |
1309 | void __user *arg = (void __user *)p; | |
1310 | int ioflags = 0; | |
df26cfe8 LM |
1311 | int error; |
1312 | ||
4d4be482 CH |
1313 | if (filp->f_mode & FMODE_NOCMTIME) |
1314 | ioflags |= IO_INVIS; | |
df26cfe8 | 1315 | |
cca28fb8 | 1316 | trace_xfs_file_ioctl(ip); |
4d4be482 CH |
1317 | |
1318 | switch (cmd) { | |
a46db608 CH |
1319 | case FITRIM: |
1320 | return xfs_ioc_trim(mp, arg); | |
df26cfe8 LM |
1321 | case XFS_IOC_ALLOCSP: |
1322 | case XFS_IOC_FREESP: | |
1323 | case XFS_IOC_RESVSP: | |
1324 | case XFS_IOC_UNRESVSP: | |
1325 | case XFS_IOC_ALLOCSP64: | |
1326 | case XFS_IOC_FREESP64: | |
1327 | case XFS_IOC_RESVSP64: | |
44722352 DC |
1328 | case XFS_IOC_UNRESVSP64: |
1329 | case XFS_IOC_ZERO_RANGE: { | |
743bb465 | 1330 | xfs_flock64_t bf; |
df26cfe8 | 1331 | |
743bb465 | 1332 | if (copy_from_user(&bf, arg, sizeof(bf))) |
1333 | return -XFS_ERROR(EFAULT); | |
1334 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); | |
1335 | } | |
df26cfe8 LM |
1336 | case XFS_IOC_DIOINFO: { |
1337 | struct dioattr da; | |
1338 | xfs_buftarg_t *target = | |
1339 | XFS_IS_REALTIME_INODE(ip) ? | |
1340 | mp->m_rtdev_targp : mp->m_ddev_targp; | |
1341 | ||
1342 | da.d_mem = da.d_miniosz = 1 << target->bt_sshift; | |
1343 | da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1); | |
1344 | ||
1345 | if (copy_to_user(arg, &da, sizeof(da))) | |
1346 | return -XFS_ERROR(EFAULT); | |
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | case XFS_IOC_FSBULKSTAT_SINGLE: | |
1351 | case XFS_IOC_FSBULKSTAT: | |
1352 | case XFS_IOC_FSINUMBERS: | |
1353 | return xfs_ioc_bulkstat(mp, cmd, arg); | |
1354 | ||
1355 | case XFS_IOC_FSGEOMETRY_V1: | |
1356 | return xfs_ioc_fsgeometry_v1(mp, arg); | |
1357 | ||
1358 | case XFS_IOC_FSGEOMETRY: | |
1359 | return xfs_ioc_fsgeometry(mp, arg); | |
1360 | ||
1361 | case XFS_IOC_GETVERSION: | |
1362 | return put_user(inode->i_generation, (int __user *)arg); | |
1363 | ||
1364 | case XFS_IOC_FSGETXATTR: | |
1365 | return xfs_ioc_fsgetxattr(ip, 0, arg); | |
1366 | case XFS_IOC_FSGETXATTRA: | |
1367 | return xfs_ioc_fsgetxattr(ip, 1, arg); | |
65e67f51 LM |
1368 | case XFS_IOC_FSSETXATTR: |
1369 | return xfs_ioc_fssetxattr(ip, filp, arg); | |
df26cfe8 | 1370 | case XFS_IOC_GETXFLAGS: |
65e67f51 | 1371 | return xfs_ioc_getxflags(ip, arg); |
df26cfe8 | 1372 | case XFS_IOC_SETXFLAGS: |
65e67f51 | 1373 | return xfs_ioc_setxflags(ip, filp, arg); |
df26cfe8 LM |
1374 | |
1375 | case XFS_IOC_FSSETDM: { | |
1376 | struct fsdmidata dmi; | |
1377 | ||
1378 | if (copy_from_user(&dmi, arg, sizeof(dmi))) | |
1379 | return -XFS_ERROR(EFAULT); | |
1380 | ||
1381 | error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask, | |
1382 | dmi.fsd_dmstate); | |
1383 | return -error; | |
1384 | } | |
1385 | ||
1386 | case XFS_IOC_GETBMAP: | |
1387 | case XFS_IOC_GETBMAPA: | |
1388 | return xfs_ioc_getbmap(ip, ioflags, cmd, arg); | |
1389 | ||
1390 | case XFS_IOC_GETBMAPX: | |
1391 | return xfs_ioc_getbmapx(ip, arg); | |
1392 | ||
1393 | case XFS_IOC_FD_TO_HANDLE: | |
1394 | case XFS_IOC_PATH_TO_HANDLE: | |
743bb465 | 1395 | case XFS_IOC_PATH_TO_FSHANDLE: { |
1396 | xfs_fsop_handlereq_t hreq; | |
df26cfe8 | 1397 | |
743bb465 | 1398 | if (copy_from_user(&hreq, arg, sizeof(hreq))) |
1399 | return -XFS_ERROR(EFAULT); | |
1400 | return xfs_find_handle(cmd, &hreq); | |
1401 | } | |
1402 | case XFS_IOC_OPEN_BY_HANDLE: { | |
1403 | xfs_fsop_handlereq_t hreq; | |
df26cfe8 | 1404 | |
743bb465 | 1405 | if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t))) |
1406 | return -XFS_ERROR(EFAULT); | |
d296d30a | 1407 | return xfs_open_by_handle(filp, &hreq); |
743bb465 | 1408 | } |
df26cfe8 | 1409 | case XFS_IOC_FSSETDM_BY_HANDLE: |
d296d30a | 1410 | return xfs_fssetdm_by_handle(filp, arg); |
df26cfe8 | 1411 | |
743bb465 | 1412 | case XFS_IOC_READLINK_BY_HANDLE: { |
1413 | xfs_fsop_handlereq_t hreq; | |
df26cfe8 | 1414 | |
743bb465 | 1415 | if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t))) |
1416 | return -XFS_ERROR(EFAULT); | |
d296d30a | 1417 | return xfs_readlink_by_handle(filp, &hreq); |
743bb465 | 1418 | } |
df26cfe8 | 1419 | case XFS_IOC_ATTRLIST_BY_HANDLE: |
d296d30a | 1420 | return xfs_attrlist_by_handle(filp, arg); |
df26cfe8 LM |
1421 | |
1422 | case XFS_IOC_ATTRMULTI_BY_HANDLE: | |
d296d30a | 1423 | return xfs_attrmulti_by_handle(filp, arg); |
df26cfe8 LM |
1424 | |
1425 | case XFS_IOC_SWAPEXT: { | |
743bb465 | 1426 | struct xfs_swapext sxp; |
1427 | ||
1428 | if (copy_from_user(&sxp, arg, sizeof(xfs_swapext_t))) | |
1429 | return -XFS_ERROR(EFAULT); | |
1430 | error = xfs_swapext(&sxp); | |
df26cfe8 LM |
1431 | return -error; |
1432 | } | |
1433 | ||
1434 | case XFS_IOC_FSCOUNTS: { | |
1435 | xfs_fsop_counts_t out; | |
1436 | ||
1437 | error = xfs_fs_counts(mp, &out); | |
1438 | if (error) | |
1439 | return -error; | |
1440 | ||
1441 | if (copy_to_user(arg, &out, sizeof(out))) | |
1442 | return -XFS_ERROR(EFAULT); | |
1443 | return 0; | |
1444 | } | |
1445 | ||
1446 | case XFS_IOC_SET_RESBLKS: { | |
1447 | xfs_fsop_resblks_t inout; | |
1448 | __uint64_t in; | |
1449 | ||
1450 | if (!capable(CAP_SYS_ADMIN)) | |
1451 | return -EPERM; | |
1452 | ||
d5db0f97 ES |
1453 | if (mp->m_flags & XFS_MOUNT_RDONLY) |
1454 | return -XFS_ERROR(EROFS); | |
1455 | ||
df26cfe8 LM |
1456 | if (copy_from_user(&inout, arg, sizeof(inout))) |
1457 | return -XFS_ERROR(EFAULT); | |
1458 | ||
1459 | /* input parameter is passed in resblks field of structure */ | |
1460 | in = inout.resblks; | |
1461 | error = xfs_reserve_blocks(mp, &in, &inout); | |
1462 | if (error) | |
1463 | return -error; | |
1464 | ||
1465 | if (copy_to_user(arg, &inout, sizeof(inout))) | |
1466 | return -XFS_ERROR(EFAULT); | |
1467 | return 0; | |
1468 | } | |
1469 | ||
1470 | case XFS_IOC_GET_RESBLKS: { | |
1471 | xfs_fsop_resblks_t out; | |
1472 | ||
1473 | if (!capable(CAP_SYS_ADMIN)) | |
1474 | return -EPERM; | |
1475 | ||
1476 | error = xfs_reserve_blocks(mp, NULL, &out); | |
1477 | if (error) | |
1478 | return -error; | |
1479 | ||
1480 | if (copy_to_user(arg, &out, sizeof(out))) | |
1481 | return -XFS_ERROR(EFAULT); | |
1482 | ||
1483 | return 0; | |
1484 | } | |
1485 | ||
1486 | case XFS_IOC_FSGROWFSDATA: { | |
1487 | xfs_growfs_data_t in; | |
1488 | ||
df26cfe8 LM |
1489 | if (copy_from_user(&in, arg, sizeof(in))) |
1490 | return -XFS_ERROR(EFAULT); | |
1491 | ||
1492 | error = xfs_growfs_data(mp, &in); | |
1493 | return -error; | |
1494 | } | |
1495 | ||
1496 | case XFS_IOC_FSGROWFSLOG: { | |
1497 | xfs_growfs_log_t in; | |
1498 | ||
df26cfe8 LM |
1499 | if (copy_from_user(&in, arg, sizeof(in))) |
1500 | return -XFS_ERROR(EFAULT); | |
1501 | ||
1502 | error = xfs_growfs_log(mp, &in); | |
1503 | return -error; | |
1504 | } | |
1505 | ||
1506 | case XFS_IOC_FSGROWFSRT: { | |
1507 | xfs_growfs_rt_t in; | |
1508 | ||
df26cfe8 LM |
1509 | if (copy_from_user(&in, arg, sizeof(in))) |
1510 | return -XFS_ERROR(EFAULT); | |
1511 | ||
1512 | error = xfs_growfs_rt(mp, &in); | |
1513 | return -error; | |
1514 | } | |
1515 | ||
df26cfe8 LM |
1516 | case XFS_IOC_GOINGDOWN: { |
1517 | __uint32_t in; | |
1518 | ||
1519 | if (!capable(CAP_SYS_ADMIN)) | |
1520 | return -EPERM; | |
1521 | ||
1522 | if (get_user(in, (__uint32_t __user *)arg)) | |
1523 | return -XFS_ERROR(EFAULT); | |
1524 | ||
1525 | error = xfs_fs_goingdown(mp, in); | |
1526 | return -error; | |
1527 | } | |
1528 | ||
1529 | case XFS_IOC_ERROR_INJECTION: { | |
1530 | xfs_error_injection_t in; | |
1531 | ||
1532 | if (!capable(CAP_SYS_ADMIN)) | |
1533 | return -EPERM; | |
1534 | ||
1535 | if (copy_from_user(&in, arg, sizeof(in))) | |
1536 | return -XFS_ERROR(EFAULT); | |
1537 | ||
1538 | error = xfs_errortag_add(in.errtag, mp); | |
1539 | return -error; | |
1540 | } | |
1541 | ||
1542 | case XFS_IOC_ERROR_CLEARALL: | |
1543 | if (!capable(CAP_SYS_ADMIN)) | |
1544 | return -EPERM; | |
1545 | ||
1546 | error = xfs_errortag_clearall(mp, 1); | |
1547 | return -error; | |
1548 | ||
1549 | default: | |
1550 | return -ENOTTY; | |
1551 | } | |
1552 | } |