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Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2004-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include <linux/compat.h> |
1da177e4 | 19 | #include <linux/ioctl.h> |
62e194ec | 20 | #include <linux/mount.h> |
5a0e3ad6 | 21 | #include <linux/slab.h> |
1da177e4 | 22 | #include <asm/uaccess.h> |
1da177e4 | 23 | #include "xfs.h" |
1da177e4 | 24 | #include "xfs_fs.h" |
faa63e95 MM |
25 | #include "xfs_bit.h" |
26 | #include "xfs_log.h" | |
27 | #include "xfs_inum.h" | |
28 | #include "xfs_trans.h" | |
29 | #include "xfs_sb.h" | |
30 | #include "xfs_ag.h" | |
31 | #include "xfs_dir2.h" | |
32 | #include "xfs_dmapi.h" | |
33 | #include "xfs_mount.h" | |
34 | #include "xfs_bmap_btree.h" | |
35 | #include "xfs_attr_sf.h" | |
36 | #include "xfs_dir2_sf.h" | |
1da177e4 | 37 | #include "xfs_vnode.h" |
faa63e95 MM |
38 | #include "xfs_dinode.h" |
39 | #include "xfs_inode.h" | |
40 | #include "xfs_itable.h" | |
41 | #include "xfs_error.h" | |
1da177e4 | 42 | #include "xfs_dfrag.h" |
739bfb2a | 43 | #include "xfs_vnodeops.h" |
d5547f9f | 44 | #include "xfs_fsops.h" |
471d5910 | 45 | #include "xfs_alloc.h" |
46 | #include "xfs_rtalloc.h" | |
ebeecd2b | 47 | #include "xfs_attr.h" |
d5547f9f | 48 | #include "xfs_ioctl.h" |
a8272ce0 | 49 | #include "xfs_ioctl32.h" |
0b1b213f | 50 | #include "xfs_trace.h" |
1da177e4 | 51 | |
526c420c ES |
52 | #define _NATIVE_IOC(cmd, type) \ |
53 | _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) | |
54 | ||
ffae263a | 55 | #ifdef BROKEN_X86_ALIGNMENT |
d5547f9f | 56 | STATIC int |
57 | xfs_compat_flock64_copyin( | |
58 | xfs_flock64_t *bf, | |
59 | compat_xfs_flock64_t __user *arg32) | |
526c420c | 60 | { |
d5547f9f | 61 | if (get_user(bf->l_type, &arg32->l_type) || |
62 | get_user(bf->l_whence, &arg32->l_whence) || | |
63 | get_user(bf->l_start, &arg32->l_start) || | |
64 | get_user(bf->l_len, &arg32->l_len) || | |
65 | get_user(bf->l_sysid, &arg32->l_sysid) || | |
66 | get_user(bf->l_pid, &arg32->l_pid) || | |
67 | copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32))) | |
68 | return -XFS_ERROR(EFAULT); | |
69 | return 0; | |
526c420c ES |
70 | } |
71 | ||
d5547f9f | 72 | STATIC int |
73 | xfs_compat_ioc_fsgeometry_v1( | |
74 | struct xfs_mount *mp, | |
75 | compat_xfs_fsop_geom_v1_t __user *arg32) | |
547e00c3 | 76 | { |
d5547f9f | 77 | xfs_fsop_geom_t fsgeo; |
78 | int error; | |
547e00c3 | 79 | |
d5547f9f | 80 | error = xfs_fs_geometry(mp, &fsgeo, 3); |
81 | if (error) | |
82 | return -error; | |
83 | /* The 32-bit variant simply has some padding at the end */ | |
84 | if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) | |
85 | return -XFS_ERROR(EFAULT); | |
86 | return 0; | |
547e00c3 MM |
87 | } |
88 | ||
471d5910 | 89 | STATIC int |
90 | xfs_compat_growfs_data_copyin( | |
91 | struct xfs_growfs_data *in, | |
92 | compat_xfs_growfs_data_t __user *arg32) | |
93 | { | |
94 | if (get_user(in->newblocks, &arg32->newblocks) || | |
95 | get_user(in->imaxpct, &arg32->imaxpct)) | |
96 | return -XFS_ERROR(EFAULT); | |
97 | return 0; | |
98 | } | |
99 | ||
100 | STATIC int | |
101 | xfs_compat_growfs_rt_copyin( | |
102 | struct xfs_growfs_rt *in, | |
103 | compat_xfs_growfs_rt_t __user *arg32) | |
104 | { | |
105 | if (get_user(in->newblocks, &arg32->newblocks) || | |
106 | get_user(in->extsize, &arg32->extsize)) | |
107 | return -XFS_ERROR(EFAULT); | |
108 | return 0; | |
109 | } | |
110 | ||
d5547f9f | 111 | STATIC int |
112 | xfs_inumbers_fmt_compat( | |
113 | void __user *ubuffer, | |
114 | const xfs_inogrp_t *buffer, | |
115 | long count, | |
116 | long *written) | |
faa63e95 | 117 | { |
d5547f9f | 118 | compat_xfs_inogrp_t __user *p32 = ubuffer; |
119 | long i; | |
faa63e95 MM |
120 | |
121 | for (i = 0; i < count; i++) { | |
122 | if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || | |
123 | put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || | |
124 | put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) | |
d5547f9f | 125 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
126 | } |
127 | *written = count * sizeof(*p32); | |
128 | return 0; | |
129 | } | |
130 | ||
1da177e4 | 131 | #else |
faa63e95 | 132 | #define xfs_inumbers_fmt_compat xfs_inumbers_fmt |
e5d412f1 | 133 | #endif /* BROKEN_X86_ALIGNMENT */ |
faa63e95 | 134 | |
e94fc4a4 | 135 | STATIC int |
136 | xfs_ioctl32_bstime_copyin( | |
137 | xfs_bstime_t *bstime, | |
138 | compat_xfs_bstime_t __user *bstime32) | |
139 | { | |
140 | compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */ | |
141 | ||
142 | if (get_user(sec32, &bstime32->tv_sec) || | |
143 | get_user(bstime->tv_nsec, &bstime32->tv_nsec)) | |
144 | return -XFS_ERROR(EFAULT); | |
145 | bstime->tv_sec = sec32; | |
146 | return 0; | |
147 | } | |
148 | ||
149 | /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */ | |
150 | STATIC int | |
151 | xfs_ioctl32_bstat_copyin( | |
152 | xfs_bstat_t *bstat, | |
153 | compat_xfs_bstat_t __user *bstat32) | |
154 | { | |
155 | if (get_user(bstat->bs_ino, &bstat32->bs_ino) || | |
156 | get_user(bstat->bs_mode, &bstat32->bs_mode) || | |
157 | get_user(bstat->bs_nlink, &bstat32->bs_nlink) || | |
158 | get_user(bstat->bs_uid, &bstat32->bs_uid) || | |
159 | get_user(bstat->bs_gid, &bstat32->bs_gid) || | |
160 | get_user(bstat->bs_rdev, &bstat32->bs_rdev) || | |
161 | get_user(bstat->bs_blksize, &bstat32->bs_blksize) || | |
162 | get_user(bstat->bs_size, &bstat32->bs_size) || | |
163 | xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || | |
164 | xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || | |
165 | xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || | |
166 | get_user(bstat->bs_blocks, &bstat32->bs_size) || | |
167 | get_user(bstat->bs_xflags, &bstat32->bs_size) || | |
168 | get_user(bstat->bs_extsize, &bstat32->bs_extsize) || | |
169 | get_user(bstat->bs_extents, &bstat32->bs_extents) || | |
170 | get_user(bstat->bs_gen, &bstat32->bs_gen) || | |
171 | get_user(bstat->bs_projid, &bstat32->bs_projid) || | |
172 | get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || | |
173 | get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || | |
174 | get_user(bstat->bs_aextents, &bstat32->bs_aextents)) | |
175 | return -XFS_ERROR(EFAULT); | |
176 | return 0; | |
177 | } | |
178 | ||
faa63e95 MM |
179 | /* XFS_IOC_FSBULKSTAT and friends */ |
180 | ||
d5547f9f | 181 | STATIC int |
182 | xfs_bstime_store_compat( | |
183 | compat_xfs_bstime_t __user *p32, | |
184 | const xfs_bstime_t *p) | |
faa63e95 | 185 | { |
d5547f9f | 186 | __s32 sec32; |
faa63e95 MM |
187 | |
188 | sec32 = p->tv_sec; | |
189 | if (put_user(sec32, &p32->tv_sec) || | |
190 | put_user(p->tv_nsec, &p32->tv_nsec)) | |
d5547f9f | 191 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
192 | return 0; |
193 | } | |
194 | ||
65fbaf24 | 195 | /* Return 0 on success or positive error (to xfs_bulkstat()) */ |
d5547f9f | 196 | STATIC int |
197 | xfs_bulkstat_one_fmt_compat( | |
faa63e95 | 198 | void __user *ubuffer, |
65fbaf24 | 199 | int ubsize, |
200 | int *ubused, | |
faa63e95 MM |
201 | const xfs_bstat_t *buffer) |
202 | { | |
d5547f9f | 203 | compat_xfs_bstat_t __user *p32 = ubuffer; |
faa63e95 | 204 | |
65fbaf24 | 205 | if (ubsize < sizeof(*p32)) |
206 | return XFS_ERROR(ENOMEM); | |
207 | ||
208 | if (put_user(buffer->bs_ino, &p32->bs_ino) || | |
209 | put_user(buffer->bs_mode, &p32->bs_mode) || | |
210 | put_user(buffer->bs_nlink, &p32->bs_nlink) || | |
211 | put_user(buffer->bs_uid, &p32->bs_uid) || | |
212 | put_user(buffer->bs_gid, &p32->bs_gid) || | |
213 | put_user(buffer->bs_rdev, &p32->bs_rdev) || | |
214 | put_user(buffer->bs_blksize, &p32->bs_blksize) || | |
215 | put_user(buffer->bs_size, &p32->bs_size) || | |
faa63e95 MM |
216 | xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || |
217 | xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || | |
218 | xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || | |
65fbaf24 | 219 | put_user(buffer->bs_blocks, &p32->bs_blocks) || |
220 | put_user(buffer->bs_xflags, &p32->bs_xflags) || | |
221 | put_user(buffer->bs_extsize, &p32->bs_extsize) || | |
222 | put_user(buffer->bs_extents, &p32->bs_extents) || | |
223 | put_user(buffer->bs_gen, &p32->bs_gen) || | |
224 | put_user(buffer->bs_projid, &p32->bs_projid) || | |
225 | put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || | |
226 | put_user(buffer->bs_dmstate, &p32->bs_dmstate) || | |
faa63e95 | 227 | put_user(buffer->bs_aextents, &p32->bs_aextents)) |
65fbaf24 | 228 | return XFS_ERROR(EFAULT); |
229 | if (ubused) | |
230 | *ubused = sizeof(*p32); | |
231 | return 0; | |
faa63e95 MM |
232 | } |
233 | ||
2ee4fa5c | 234 | STATIC int |
235 | xfs_bulkstat_one_compat( | |
236 | xfs_mount_t *mp, /* mount point for filesystem */ | |
237 | xfs_ino_t ino, /* inode number to get data for */ | |
238 | void __user *buffer, /* buffer to place output in */ | |
239 | int ubsize, /* size of buffer */ | |
240 | void *private_data, /* my private data */ | |
241 | xfs_daddr_t bno, /* starting bno of inode cluster */ | |
242 | int *ubused, /* bytes used by me */ | |
243 | void *dibuff, /* on-disk inode buffer */ | |
244 | int *stat) /* BULKSTAT_RV_... */ | |
245 | { | |
246 | return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, | |
247 | xfs_bulkstat_one_fmt_compat, bno, | |
248 | ubused, dibuff, stat); | |
249 | } | |
250 | ||
faa63e95 MM |
251 | /* copied from xfs_ioctl.c */ |
252 | STATIC int | |
2ee4fa5c | 253 | xfs_compat_ioc_bulkstat( |
254 | xfs_mount_t *mp, | |
255 | unsigned int cmd, | |
256 | compat_xfs_fsop_bulkreq_t __user *p32) | |
1da177e4 | 257 | { |
1da177e4 | 258 | u32 addr; |
faa63e95 MM |
259 | xfs_fsop_bulkreq_t bulkreq; |
260 | int count; /* # of records returned */ | |
261 | xfs_ino_t inlast; /* last inode number */ | |
262 | int done; | |
263 | int error; | |
264 | ||
265 | /* done = 1 if there are more stats to get and if bulkstat */ | |
266 | /* should be called again (unused here, but used in dmapi) */ | |
1da177e4 | 267 | |
faa63e95 | 268 | if (!capable(CAP_SYS_ADMIN)) |
d5547f9f | 269 | return -XFS_ERROR(EPERM); |
faa63e95 MM |
270 | |
271 | if (XFS_FORCED_SHUTDOWN(mp)) | |
272 | return -XFS_ERROR(EIO); | |
273 | ||
274 | if (get_user(addr, &p32->lastip)) | |
d5547f9f | 275 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
276 | bulkreq.lastip = compat_ptr(addr); |
277 | if (get_user(bulkreq.icount, &p32->icount) || | |
278 | get_user(addr, &p32->ubuffer)) | |
d5547f9f | 279 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
280 | bulkreq.ubuffer = compat_ptr(addr); |
281 | if (get_user(addr, &p32->ocount)) | |
d5547f9f | 282 | return -XFS_ERROR(EFAULT); |
faa63e95 | 283 | bulkreq.ocount = compat_ptr(addr); |
1da177e4 | 284 | |
faa63e95 MM |
285 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) |
286 | return -XFS_ERROR(EFAULT); | |
287 | ||
288 | if ((count = bulkreq.icount) <= 0) | |
289 | return -XFS_ERROR(EINVAL); | |
290 | ||
cd57e594 LM |
291 | if (bulkreq.ubuffer == NULL) |
292 | return -XFS_ERROR(EINVAL); | |
293 | ||
af819d27 | 294 | if (cmd == XFS_IOC_FSINUMBERS_32) { |
faa63e95 MM |
295 | error = xfs_inumbers(mp, &inlast, &count, |
296 | bulkreq.ubuffer, xfs_inumbers_fmt_compat); | |
af819d27 | 297 | } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { |
298 | int res; | |
299 | ||
300 | error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, | |
301 | sizeof(compat_xfs_bstat_t), | |
302 | NULL, 0, NULL, NULL, &res); | |
303 | } else if (cmd == XFS_IOC_FSBULKSTAT_32) { | |
faa63e95 | 304 | error = xfs_bulkstat(mp, &inlast, &count, |
2ee4fa5c | 305 | xfs_bulkstat_one_compat, NULL, |
faa63e95 MM |
306 | sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, |
307 | BULKSTAT_FG_QUICK, &done); | |
af819d27 | 308 | } else |
309 | error = XFS_ERROR(EINVAL); | |
faa63e95 MM |
310 | if (error) |
311 | return -error; | |
312 | ||
313 | if (bulkreq.ocount != NULL) { | |
314 | if (copy_to_user(bulkreq.lastip, &inlast, | |
315 | sizeof(xfs_ino_t))) | |
316 | return -XFS_ERROR(EFAULT); | |
317 | ||
318 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
319 | return -XFS_ERROR(EFAULT); | |
320 | } | |
321 | ||
322 | return 0; | |
1da177e4 | 323 | } |
faa63e95 | 324 | |
d5547f9f | 325 | STATIC int |
326 | xfs_compat_handlereq_copyin( | |
327 | xfs_fsop_handlereq_t *hreq, | |
328 | compat_xfs_fsop_handlereq_t __user *arg32) | |
1fa503df | 329 | { |
d5547f9f | 330 | compat_xfs_fsop_handlereq_t hreq32; |
331 | ||
332 | if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) | |
333 | return -XFS_ERROR(EFAULT); | |
334 | ||
335 | hreq->fd = hreq32.fd; | |
336 | hreq->path = compat_ptr(hreq32.path); | |
337 | hreq->oflags = hreq32.oflags; | |
338 | hreq->ihandle = compat_ptr(hreq32.ihandle); | |
339 | hreq->ihandlen = hreq32.ihandlen; | |
340 | hreq->ohandle = compat_ptr(hreq32.ohandle); | |
341 | hreq->ohandlen = compat_ptr(hreq32.ohandlen); | |
342 | ||
343 | return 0; | |
1fa503df MM |
344 | } |
345 | ||
ab596ad8 CH |
346 | STATIC struct dentry * |
347 | xfs_compat_handlereq_to_dentry( | |
348 | struct file *parfilp, | |
349 | compat_xfs_fsop_handlereq_t *hreq) | |
ebeecd2b | 350 | { |
ab596ad8 CH |
351 | return xfs_handle_to_dentry(parfilp, |
352 | compat_ptr(hreq->ihandle), hreq->ihandlen); | |
ebeecd2b | 353 | } |
354 | ||
355 | STATIC int | |
356 | xfs_compat_attrlist_by_handle( | |
ab596ad8 CH |
357 | struct file *parfilp, |
358 | void __user *arg) | |
ebeecd2b | 359 | { |
360 | int error; | |
361 | attrlist_cursor_kern_t *cursor; | |
362 | compat_xfs_fsop_attrlist_handlereq_t al_hreq; | |
ab596ad8 | 363 | struct dentry *dentry; |
ebeecd2b | 364 | char *kbuf; |
365 | ||
366 | if (!capable(CAP_SYS_ADMIN)) | |
367 | return -XFS_ERROR(EPERM); | |
368 | if (copy_from_user(&al_hreq, arg, | |
369 | sizeof(compat_xfs_fsop_attrlist_handlereq_t))) | |
370 | return -XFS_ERROR(EFAULT); | |
371 | if (al_hreq.buflen > XATTR_LIST_MAX) | |
372 | return -XFS_ERROR(EINVAL); | |
373 | ||
374 | /* | |
375 | * Reject flags, only allow namespaces. | |
376 | */ | |
377 | if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) | |
378 | return -XFS_ERROR(EINVAL); | |
379 | ||
ab596ad8 CH |
380 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
381 | if (IS_ERR(dentry)) | |
382 | return PTR_ERR(dentry); | |
ebeecd2b | 383 | |
ab596ad8 | 384 | error = -ENOMEM; |
ebeecd2b | 385 | kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL); |
386 | if (!kbuf) | |
ab596ad8 | 387 | goto out_dput; |
ebeecd2b | 388 | |
389 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
ab596ad8 | 390 | error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, |
ebeecd2b | 391 | al_hreq.flags, cursor); |
392 | if (error) | |
393 | goto out_kfree; | |
394 | ||
395 | if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen)) | |
396 | error = -EFAULT; | |
397 | ||
398 | out_kfree: | |
399 | kfree(kbuf); | |
ab596ad8 CH |
400 | out_dput: |
401 | dput(dentry); | |
402 | return error; | |
ebeecd2b | 403 | } |
404 | ||
28750975 | 405 | STATIC int |
406 | xfs_compat_attrmulti_by_handle( | |
ab596ad8 CH |
407 | struct file *parfilp, |
408 | void __user *arg) | |
28750975 | 409 | { |
410 | int error; | |
411 | compat_xfs_attr_multiop_t *ops; | |
412 | compat_xfs_fsop_attrmulti_handlereq_t am_hreq; | |
ab596ad8 | 413 | struct dentry *dentry; |
28750975 | 414 | unsigned int i, size; |
a9273ca5 | 415 | unsigned char *attr_name; |
28750975 | 416 | |
417 | if (!capable(CAP_SYS_ADMIN)) | |
418 | return -XFS_ERROR(EPERM); | |
419 | if (copy_from_user(&am_hreq, arg, | |
420 | sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) | |
421 | return -XFS_ERROR(EFAULT); | |
422 | ||
ab596ad8 CH |
423 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
424 | if (IS_ERR(dentry)) | |
425 | return PTR_ERR(dentry); | |
28750975 | 426 | |
427 | error = E2BIG; | |
428 | size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); | |
429 | if (!size || size > 16 * PAGE_SIZE) | |
ab596ad8 | 430 | goto out_dput; |
28750975 | 431 | |
0e639bde LZ |
432 | ops = memdup_user(compat_ptr(am_hreq.ops), size); |
433 | if (IS_ERR(ops)) { | |
434 | error = PTR_ERR(ops); | |
ab596ad8 | 435 | goto out_dput; |
0e639bde | 436 | } |
28750975 | 437 | |
438 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
439 | if (!attr_name) | |
440 | goto out_kfree_ops; | |
441 | ||
28750975 | 442 | error = 0; |
443 | for (i = 0; i < am_hreq.opcount; i++) { | |
a9273ca5 | 444 | ops[i].am_error = strncpy_from_user((char *)attr_name, |
28750975 | 445 | compat_ptr(ops[i].am_attrname), |
446 | MAXNAMELEN); | |
447 | if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) | |
448 | error = -ERANGE; | |
449 | if (ops[i].am_error < 0) | |
450 | break; | |
451 | ||
452 | switch (ops[i].am_opcode) { | |
453 | case ATTR_OP_GET: | |
ab596ad8 CH |
454 | ops[i].am_error = xfs_attrmulti_attr_get( |
455 | dentry->d_inode, attr_name, | |
28750975 | 456 | compat_ptr(ops[i].am_attrvalue), |
457 | &ops[i].am_length, ops[i].am_flags); | |
458 | break; | |
459 | case ATTR_OP_SET: | |
62e194ec CH |
460 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
461 | if (ops[i].am_error) | |
462 | break; | |
ab596ad8 CH |
463 | ops[i].am_error = xfs_attrmulti_attr_set( |
464 | dentry->d_inode, attr_name, | |
28750975 | 465 | compat_ptr(ops[i].am_attrvalue), |
466 | ops[i].am_length, ops[i].am_flags); | |
62e194ec | 467 | mnt_drop_write(parfilp->f_path.mnt); |
28750975 | 468 | break; |
469 | case ATTR_OP_REMOVE: | |
62e194ec CH |
470 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
471 | if (ops[i].am_error) | |
472 | break; | |
ab596ad8 CH |
473 | ops[i].am_error = xfs_attrmulti_attr_remove( |
474 | dentry->d_inode, attr_name, | |
475 | ops[i].am_flags); | |
62e194ec | 476 | mnt_drop_write(parfilp->f_path.mnt); |
28750975 | 477 | break; |
478 | default: | |
479 | ops[i].am_error = EINVAL; | |
480 | } | |
481 | } | |
482 | ||
483 | if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) | |
484 | error = XFS_ERROR(EFAULT); | |
485 | ||
486 | kfree(attr_name); | |
487 | out_kfree_ops: | |
488 | kfree(ops); | |
ab596ad8 CH |
489 | out_dput: |
490 | dput(dentry); | |
28750975 | 491 | return -error; |
492 | } | |
493 | ||
710d62aa | 494 | STATIC int |
495 | xfs_compat_fssetdm_by_handle( | |
ab596ad8 CH |
496 | struct file *parfilp, |
497 | void __user *arg) | |
710d62aa | 498 | { |
499 | int error; | |
500 | struct fsdmidata fsd; | |
501 | compat_xfs_fsop_setdm_handlereq_t dmhreq; | |
ab596ad8 | 502 | struct dentry *dentry; |
710d62aa | 503 | |
504 | if (!capable(CAP_MKNOD)) | |
505 | return -XFS_ERROR(EPERM); | |
506 | if (copy_from_user(&dmhreq, arg, | |
507 | sizeof(compat_xfs_fsop_setdm_handlereq_t))) | |
508 | return -XFS_ERROR(EFAULT); | |
509 | ||
ab596ad8 CH |
510 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq); |
511 | if (IS_ERR(dentry)) | |
512 | return PTR_ERR(dentry); | |
710d62aa | 513 | |
ab596ad8 | 514 | if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) { |
710d62aa | 515 | error = -XFS_ERROR(EPERM); |
516 | goto out; | |
517 | } | |
518 | ||
519 | if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) { | |
520 | error = -XFS_ERROR(EFAULT); | |
521 | goto out; | |
522 | } | |
523 | ||
ab596ad8 | 524 | error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask, |
710d62aa | 525 | fsd.fsd_dmstate); |
526 | ||
527 | out: | |
ab596ad8 | 528 | dput(dentry); |
710d62aa | 529 | return error; |
530 | } | |
531 | ||
4d4be482 CH |
532 | long |
533 | xfs_file_compat_ioctl( | |
534 | struct file *filp, | |
535 | unsigned cmd, | |
536 | unsigned long p) | |
1da177e4 | 537 | { |
4d4be482 CH |
538 | struct inode *inode = filp->f_path.dentry->d_inode; |
539 | struct xfs_inode *ip = XFS_I(inode); | |
540 | struct xfs_mount *mp = ip->i_mount; | |
541 | void __user *arg = (void __user *)p; | |
542 | int ioflags = 0; | |
543 | int error; | |
544 | ||
545 | if (filp->f_mode & FMODE_NOCMTIME) | |
546 | ioflags |= IO_INVIS; | |
547 | ||
548 | xfs_itrace_entry(ip); | |
1da177e4 LT |
549 | |
550 | switch (cmd) { | |
e5d412f1 | 551 | /* No size or alignment issues on any arch */ |
1da177e4 | 552 | case XFS_IOC_DIOINFO: |
1da177e4 | 553 | case XFS_IOC_FSGEOMETRY: |
1da177e4 LT |
554 | case XFS_IOC_FSGETXATTR: |
555 | case XFS_IOC_FSSETXATTR: | |
556 | case XFS_IOC_FSGETXATTRA: | |
557 | case XFS_IOC_FSSETDM: | |
558 | case XFS_IOC_GETBMAP: | |
559 | case XFS_IOC_GETBMAPA: | |
560 | case XFS_IOC_GETBMAPX: | |
1da177e4 LT |
561 | case XFS_IOC_FSCOUNTS: |
562 | case XFS_IOC_SET_RESBLKS: | |
563 | case XFS_IOC_GET_RESBLKS: | |
1da177e4 | 564 | case XFS_IOC_FSGROWFSLOG: |
1da177e4 LT |
565 | case XFS_IOC_GOINGDOWN: |
566 | case XFS_IOC_ERROR_INJECTION: | |
567 | case XFS_IOC_ERROR_CLEARALL: | |
4d4be482 | 568 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 569 | #ifndef BROKEN_X86_ALIGNMENT |
570 | /* These are handled fine if no alignment issues */ | |
571 | case XFS_IOC_ALLOCSP: | |
572 | case XFS_IOC_FREESP: | |
573 | case XFS_IOC_RESVSP: | |
574 | case XFS_IOC_UNRESVSP: | |
575 | case XFS_IOC_ALLOCSP64: | |
576 | case XFS_IOC_FREESP64: | |
577 | case XFS_IOC_RESVSP64: | |
578 | case XFS_IOC_UNRESVSP64: | |
579 | case XFS_IOC_FSGEOMETRY_V1: | |
580 | case XFS_IOC_FSGROWFSDATA: | |
581 | case XFS_IOC_FSGROWFSRT: | |
4d4be482 | 582 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 583 | #else |
526c420c ES |
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: | |
d5547f9f | 591 | case XFS_IOC_UNRESVSP64_32: { |
592 | struct xfs_flock64 bf; | |
593 | ||
594 | if (xfs_compat_flock64_copyin(&bf, arg)) | |
595 | return -XFS_ERROR(EFAULT); | |
526c420c | 596 | cmd = _NATIVE_IOC(cmd, struct xfs_flock64); |
d5547f9f | 597 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); |
598 | } | |
547e00c3 | 599 | case XFS_IOC_FSGEOMETRY_V1_32: |
d5547f9f | 600 | return xfs_compat_ioc_fsgeometry_v1(mp, arg); |
471d5910 | 601 | case XFS_IOC_FSGROWFSDATA_32: { |
602 | struct xfs_growfs_data in; | |
603 | ||
604 | if (xfs_compat_growfs_data_copyin(&in, arg)) | |
605 | return -XFS_ERROR(EFAULT); | |
606 | error = xfs_growfs_data(mp, &in); | |
607 | return -error; | |
608 | } | |
609 | case XFS_IOC_FSGROWFSRT_32: { | |
610 | struct xfs_growfs_rt in; | |
611 | ||
612 | if (xfs_compat_growfs_rt_copyin(&in, arg)) | |
613 | return -XFS_ERROR(EFAULT); | |
614 | error = xfs_growfs_rt(mp, &in); | |
615 | return -error; | |
616 | } | |
1da177e4 | 617 | #endif |
e5d412f1 | 618 | /* long changes size, but xfs only copiese out 32 bits */ |
619 | case XFS_IOC_GETXFLAGS_32: | |
620 | case XFS_IOC_SETXFLAGS_32: | |
621 | case XFS_IOC_GETVERSION_32: | |
622 | cmd = _NATIVE_IOC(cmd, long); | |
4d4be482 | 623 | return xfs_file_ioctl(filp, cmd, p); |
3725867d | 624 | case XFS_IOC_SWAPEXT_32: { |
e5d412f1 | 625 | struct xfs_swapext sxp; |
626 | struct compat_xfs_swapext __user *sxu = arg; | |
627 | ||
628 | /* Bulk copy in up to the sx_stat field, then copy bstat */ | |
629 | if (copy_from_user(&sxp, sxu, | |
630 | offsetof(struct xfs_swapext, sx_stat)) || | |
631 | xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) | |
632 | return -XFS_ERROR(EFAULT); | |
633 | error = xfs_swapext(&sxp); | |
634 | return -error; | |
635 | } | |
faa63e95 MM |
636 | case XFS_IOC_FSBULKSTAT_32: |
637 | case XFS_IOC_FSBULKSTAT_SINGLE_32: | |
638 | case XFS_IOC_FSINUMBERS_32: | |
2ee4fa5c | 639 | return xfs_compat_ioc_bulkstat(mp, cmd, arg); |
1fa503df MM |
640 | case XFS_IOC_FD_TO_HANDLE_32: |
641 | case XFS_IOC_PATH_TO_HANDLE_32: | |
d5547f9f | 642 | case XFS_IOC_PATH_TO_FSHANDLE_32: { |
643 | struct xfs_fsop_handlereq hreq; | |
644 | ||
645 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
646 | return -XFS_ERROR(EFAULT); | |
1fa503df | 647 | cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); |
d5547f9f | 648 | return xfs_find_handle(cmd, &hreq); |
649 | } | |
650 | case XFS_IOC_OPEN_BY_HANDLE_32: { | |
651 | struct xfs_fsop_handlereq hreq; | |
652 | ||
653 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
654 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 655 | return xfs_open_by_handle(filp, &hreq); |
d5547f9f | 656 | } |
657 | case XFS_IOC_READLINK_BY_HANDLE_32: { | |
658 | struct xfs_fsop_handlereq hreq; | |
659 | ||
660 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
661 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 662 | return xfs_readlink_by_handle(filp, &hreq); |
d5547f9f | 663 | } |
ebeecd2b | 664 | case XFS_IOC_ATTRLIST_BY_HANDLE_32: |
ab596ad8 | 665 | return xfs_compat_attrlist_by_handle(filp, arg); |
28750975 | 666 | case XFS_IOC_ATTRMULTI_BY_HANDLE_32: |
ab596ad8 | 667 | return xfs_compat_attrmulti_by_handle(filp, arg); |
710d62aa | 668 | case XFS_IOC_FSSETDM_BY_HANDLE_32: |
ab596ad8 | 669 | return xfs_compat_fssetdm_by_handle(filp, arg); |
1da177e4 | 670 | default: |
d5547f9f | 671 | return -XFS_ERROR(ENOIOCTLCMD); |
1da177e4 | 672 | } |
1da177e4 | 673 | } |