Commit | Line | Data |
---|---|---|
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" |
a4fbe6ab | 25 | #include "xfs_format.h" |
239880ef DC |
26 | #include "xfs_log_format.h" |
27 | #include "xfs_trans_resv.h" | |
faa63e95 MM |
28 | #include "xfs_sb.h" |
29 | #include "xfs_ag.h" | |
faa63e95 | 30 | #include "xfs_mount.h" |
1da177e4 | 31 | #include "xfs_vnode.h" |
faa63e95 MM |
32 | #include "xfs_inode.h" |
33 | #include "xfs_itable.h" | |
34 | #include "xfs_error.h" | |
d5547f9f | 35 | #include "xfs_fsops.h" |
471d5910 | 36 | #include "xfs_alloc.h" |
37 | #include "xfs_rtalloc.h" | |
ebeecd2b | 38 | #include "xfs_attr.h" |
d5547f9f | 39 | #include "xfs_ioctl.h" |
a8272ce0 | 40 | #include "xfs_ioctl32.h" |
0b1b213f | 41 | #include "xfs_trace.h" |
1da177e4 | 42 | |
526c420c ES |
43 | #define _NATIVE_IOC(cmd, type) \ |
44 | _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) | |
45 | ||
ffae263a | 46 | #ifdef BROKEN_X86_ALIGNMENT |
d5547f9f | 47 | STATIC int |
48 | xfs_compat_flock64_copyin( | |
49 | xfs_flock64_t *bf, | |
50 | compat_xfs_flock64_t __user *arg32) | |
526c420c | 51 | { |
d5547f9f | 52 | if (get_user(bf->l_type, &arg32->l_type) || |
53 | get_user(bf->l_whence, &arg32->l_whence) || | |
54 | get_user(bf->l_start, &arg32->l_start) || | |
55 | get_user(bf->l_len, &arg32->l_len) || | |
56 | get_user(bf->l_sysid, &arg32->l_sysid) || | |
57 | get_user(bf->l_pid, &arg32->l_pid) || | |
58 | copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32))) | |
59 | return -XFS_ERROR(EFAULT); | |
60 | return 0; | |
526c420c ES |
61 | } |
62 | ||
d5547f9f | 63 | STATIC int |
64 | xfs_compat_ioc_fsgeometry_v1( | |
65 | struct xfs_mount *mp, | |
66 | compat_xfs_fsop_geom_v1_t __user *arg32) | |
547e00c3 | 67 | { |
d5547f9f | 68 | xfs_fsop_geom_t fsgeo; |
69 | int error; | |
547e00c3 | 70 | |
d5547f9f | 71 | error = xfs_fs_geometry(mp, &fsgeo, 3); |
72 | if (error) | |
73 | return -error; | |
74 | /* The 32-bit variant simply has some padding at the end */ | |
75 | if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) | |
76 | return -XFS_ERROR(EFAULT); | |
77 | return 0; | |
547e00c3 MM |
78 | } |
79 | ||
471d5910 | 80 | STATIC int |
81 | xfs_compat_growfs_data_copyin( | |
82 | struct xfs_growfs_data *in, | |
83 | compat_xfs_growfs_data_t __user *arg32) | |
84 | { | |
85 | if (get_user(in->newblocks, &arg32->newblocks) || | |
86 | get_user(in->imaxpct, &arg32->imaxpct)) | |
87 | return -XFS_ERROR(EFAULT); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | STATIC int | |
92 | xfs_compat_growfs_rt_copyin( | |
93 | struct xfs_growfs_rt *in, | |
94 | compat_xfs_growfs_rt_t __user *arg32) | |
95 | { | |
96 | if (get_user(in->newblocks, &arg32->newblocks) || | |
97 | get_user(in->extsize, &arg32->extsize)) | |
98 | return -XFS_ERROR(EFAULT); | |
99 | return 0; | |
100 | } | |
101 | ||
d5547f9f | 102 | STATIC int |
103 | xfs_inumbers_fmt_compat( | |
104 | void __user *ubuffer, | |
105 | const xfs_inogrp_t *buffer, | |
106 | long count, | |
107 | long *written) | |
faa63e95 | 108 | { |
d5547f9f | 109 | compat_xfs_inogrp_t __user *p32 = ubuffer; |
110 | long i; | |
faa63e95 MM |
111 | |
112 | for (i = 0; i < count; i++) { | |
113 | if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || | |
114 | put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || | |
115 | put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) | |
d5547f9f | 116 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
117 | } |
118 | *written = count * sizeof(*p32); | |
119 | return 0; | |
120 | } | |
121 | ||
1da177e4 | 122 | #else |
faa63e95 | 123 | #define xfs_inumbers_fmt_compat xfs_inumbers_fmt |
e5d412f1 | 124 | #endif /* BROKEN_X86_ALIGNMENT */ |
faa63e95 | 125 | |
e94fc4a4 | 126 | STATIC int |
127 | xfs_ioctl32_bstime_copyin( | |
128 | xfs_bstime_t *bstime, | |
129 | compat_xfs_bstime_t __user *bstime32) | |
130 | { | |
131 | compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */ | |
132 | ||
133 | if (get_user(sec32, &bstime32->tv_sec) || | |
134 | get_user(bstime->tv_nsec, &bstime32->tv_nsec)) | |
135 | return -XFS_ERROR(EFAULT); | |
136 | bstime->tv_sec = sec32; | |
137 | return 0; | |
138 | } | |
139 | ||
140 | /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */ | |
141 | STATIC int | |
142 | xfs_ioctl32_bstat_copyin( | |
143 | xfs_bstat_t *bstat, | |
144 | compat_xfs_bstat_t __user *bstat32) | |
145 | { | |
146 | if (get_user(bstat->bs_ino, &bstat32->bs_ino) || | |
147 | get_user(bstat->bs_mode, &bstat32->bs_mode) || | |
148 | get_user(bstat->bs_nlink, &bstat32->bs_nlink) || | |
149 | get_user(bstat->bs_uid, &bstat32->bs_uid) || | |
150 | get_user(bstat->bs_gid, &bstat32->bs_gid) || | |
151 | get_user(bstat->bs_rdev, &bstat32->bs_rdev) || | |
152 | get_user(bstat->bs_blksize, &bstat32->bs_blksize) || | |
153 | get_user(bstat->bs_size, &bstat32->bs_size) || | |
154 | xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || | |
155 | xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || | |
156 | xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || | |
157 | get_user(bstat->bs_blocks, &bstat32->bs_size) || | |
158 | get_user(bstat->bs_xflags, &bstat32->bs_size) || | |
159 | get_user(bstat->bs_extsize, &bstat32->bs_extsize) || | |
160 | get_user(bstat->bs_extents, &bstat32->bs_extents) || | |
161 | get_user(bstat->bs_gen, &bstat32->bs_gen) || | |
6743099c AM |
162 | get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) || |
163 | get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) || | |
e94fc4a4 | 164 | get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || |
165 | get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || | |
166 | get_user(bstat->bs_aextents, &bstat32->bs_aextents)) | |
167 | return -XFS_ERROR(EFAULT); | |
168 | return 0; | |
169 | } | |
170 | ||
faa63e95 MM |
171 | /* XFS_IOC_FSBULKSTAT and friends */ |
172 | ||
d5547f9f | 173 | STATIC int |
174 | xfs_bstime_store_compat( | |
175 | compat_xfs_bstime_t __user *p32, | |
176 | const xfs_bstime_t *p) | |
faa63e95 | 177 | { |
d5547f9f | 178 | __s32 sec32; |
faa63e95 MM |
179 | |
180 | sec32 = p->tv_sec; | |
181 | if (put_user(sec32, &p32->tv_sec) || | |
182 | put_user(p->tv_nsec, &p32->tv_nsec)) | |
d5547f9f | 183 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
184 | return 0; |
185 | } | |
186 | ||
65fbaf24 | 187 | /* Return 0 on success or positive error (to xfs_bulkstat()) */ |
d5547f9f | 188 | STATIC int |
189 | xfs_bulkstat_one_fmt_compat( | |
faa63e95 | 190 | void __user *ubuffer, |
65fbaf24 | 191 | int ubsize, |
192 | int *ubused, | |
faa63e95 MM |
193 | const xfs_bstat_t *buffer) |
194 | { | |
d5547f9f | 195 | compat_xfs_bstat_t __user *p32 = ubuffer; |
faa63e95 | 196 | |
65fbaf24 | 197 | if (ubsize < sizeof(*p32)) |
198 | return XFS_ERROR(ENOMEM); | |
199 | ||
200 | if (put_user(buffer->bs_ino, &p32->bs_ino) || | |
201 | put_user(buffer->bs_mode, &p32->bs_mode) || | |
202 | put_user(buffer->bs_nlink, &p32->bs_nlink) || | |
203 | put_user(buffer->bs_uid, &p32->bs_uid) || | |
204 | put_user(buffer->bs_gid, &p32->bs_gid) || | |
205 | put_user(buffer->bs_rdev, &p32->bs_rdev) || | |
206 | put_user(buffer->bs_blksize, &p32->bs_blksize) || | |
207 | put_user(buffer->bs_size, &p32->bs_size) || | |
faa63e95 MM |
208 | xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || |
209 | xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || | |
210 | xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || | |
65fbaf24 | 211 | put_user(buffer->bs_blocks, &p32->bs_blocks) || |
212 | put_user(buffer->bs_xflags, &p32->bs_xflags) || | |
213 | put_user(buffer->bs_extsize, &p32->bs_extsize) || | |
214 | put_user(buffer->bs_extents, &p32->bs_extents) || | |
215 | put_user(buffer->bs_gen, &p32->bs_gen) || | |
216 | put_user(buffer->bs_projid, &p32->bs_projid) || | |
6743099c | 217 | put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) || |
65fbaf24 | 218 | put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || |
219 | put_user(buffer->bs_dmstate, &p32->bs_dmstate) || | |
faa63e95 | 220 | put_user(buffer->bs_aextents, &p32->bs_aextents)) |
65fbaf24 | 221 | return XFS_ERROR(EFAULT); |
222 | if (ubused) | |
223 | *ubused = sizeof(*p32); | |
224 | return 0; | |
faa63e95 MM |
225 | } |
226 | ||
2ee4fa5c | 227 | STATIC int |
228 | xfs_bulkstat_one_compat( | |
229 | xfs_mount_t *mp, /* mount point for filesystem */ | |
230 | xfs_ino_t ino, /* inode number to get data for */ | |
231 | void __user *buffer, /* buffer to place output in */ | |
232 | int ubsize, /* size of buffer */ | |
2ee4fa5c | 233 | int *ubused, /* bytes used by me */ |
2ee4fa5c | 234 | int *stat) /* BULKSTAT_RV_... */ |
235 | { | |
236 | return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, | |
7b6259e7 | 237 | xfs_bulkstat_one_fmt_compat, |
7dce11db | 238 | ubused, stat); |
2ee4fa5c | 239 | } |
240 | ||
faa63e95 MM |
241 | /* copied from xfs_ioctl.c */ |
242 | STATIC int | |
2ee4fa5c | 243 | xfs_compat_ioc_bulkstat( |
244 | xfs_mount_t *mp, | |
245 | unsigned int cmd, | |
246 | compat_xfs_fsop_bulkreq_t __user *p32) | |
1da177e4 | 247 | { |
1da177e4 | 248 | u32 addr; |
faa63e95 MM |
249 | xfs_fsop_bulkreq_t bulkreq; |
250 | int count; /* # of records returned */ | |
251 | xfs_ino_t inlast; /* last inode number */ | |
252 | int done; | |
253 | int error; | |
254 | ||
255 | /* done = 1 if there are more stats to get and if bulkstat */ | |
256 | /* should be called again (unused here, but used in dmapi) */ | |
1da177e4 | 257 | |
faa63e95 | 258 | if (!capable(CAP_SYS_ADMIN)) |
d5547f9f | 259 | return -XFS_ERROR(EPERM); |
faa63e95 MM |
260 | |
261 | if (XFS_FORCED_SHUTDOWN(mp)) | |
262 | return -XFS_ERROR(EIO); | |
263 | ||
264 | if (get_user(addr, &p32->lastip)) | |
d5547f9f | 265 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
266 | bulkreq.lastip = compat_ptr(addr); |
267 | if (get_user(bulkreq.icount, &p32->icount) || | |
268 | get_user(addr, &p32->ubuffer)) | |
d5547f9f | 269 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
270 | bulkreq.ubuffer = compat_ptr(addr); |
271 | if (get_user(addr, &p32->ocount)) | |
d5547f9f | 272 | return -XFS_ERROR(EFAULT); |
faa63e95 | 273 | bulkreq.ocount = compat_ptr(addr); |
1da177e4 | 274 | |
faa63e95 MM |
275 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) |
276 | return -XFS_ERROR(EFAULT); | |
277 | ||
278 | if ((count = bulkreq.icount) <= 0) | |
279 | return -XFS_ERROR(EINVAL); | |
280 | ||
cd57e594 LM |
281 | if (bulkreq.ubuffer == NULL) |
282 | return -XFS_ERROR(EINVAL); | |
283 | ||
af819d27 | 284 | if (cmd == XFS_IOC_FSINUMBERS_32) { |
faa63e95 MM |
285 | error = xfs_inumbers(mp, &inlast, &count, |
286 | bulkreq.ubuffer, xfs_inumbers_fmt_compat); | |
af819d27 | 287 | } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { |
288 | int res; | |
289 | ||
290 | error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, | |
8d2a5e6e | 291 | sizeof(compat_xfs_bstat_t), NULL, &res); |
af819d27 | 292 | } else if (cmd == XFS_IOC_FSBULKSTAT_32) { |
faa63e95 | 293 | error = xfs_bulkstat(mp, &inlast, &count, |
7dce11db CH |
294 | xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), |
295 | bulkreq.ubuffer, &done); | |
af819d27 | 296 | } else |
297 | error = XFS_ERROR(EINVAL); | |
faa63e95 MM |
298 | if (error) |
299 | return -error; | |
300 | ||
301 | if (bulkreq.ocount != NULL) { | |
302 | if (copy_to_user(bulkreq.lastip, &inlast, | |
303 | sizeof(xfs_ino_t))) | |
304 | return -XFS_ERROR(EFAULT); | |
305 | ||
306 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
307 | return -XFS_ERROR(EFAULT); | |
308 | } | |
309 | ||
310 | return 0; | |
1da177e4 | 311 | } |
faa63e95 | 312 | |
d5547f9f | 313 | STATIC int |
314 | xfs_compat_handlereq_copyin( | |
315 | xfs_fsop_handlereq_t *hreq, | |
316 | compat_xfs_fsop_handlereq_t __user *arg32) | |
1fa503df | 317 | { |
d5547f9f | 318 | compat_xfs_fsop_handlereq_t hreq32; |
319 | ||
320 | if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) | |
321 | return -XFS_ERROR(EFAULT); | |
322 | ||
323 | hreq->fd = hreq32.fd; | |
324 | hreq->path = compat_ptr(hreq32.path); | |
325 | hreq->oflags = hreq32.oflags; | |
326 | hreq->ihandle = compat_ptr(hreq32.ihandle); | |
327 | hreq->ihandlen = hreq32.ihandlen; | |
328 | hreq->ohandle = compat_ptr(hreq32.ohandle); | |
329 | hreq->ohandlen = compat_ptr(hreq32.ohandlen); | |
330 | ||
331 | return 0; | |
1fa503df MM |
332 | } |
333 | ||
ab596ad8 CH |
334 | STATIC struct dentry * |
335 | xfs_compat_handlereq_to_dentry( | |
336 | struct file *parfilp, | |
337 | compat_xfs_fsop_handlereq_t *hreq) | |
ebeecd2b | 338 | { |
ab596ad8 CH |
339 | return xfs_handle_to_dentry(parfilp, |
340 | compat_ptr(hreq->ihandle), hreq->ihandlen); | |
ebeecd2b | 341 | } |
342 | ||
343 | STATIC int | |
344 | xfs_compat_attrlist_by_handle( | |
ab596ad8 CH |
345 | struct file *parfilp, |
346 | void __user *arg) | |
ebeecd2b | 347 | { |
348 | int error; | |
349 | attrlist_cursor_kern_t *cursor; | |
350 | compat_xfs_fsop_attrlist_handlereq_t al_hreq; | |
ab596ad8 | 351 | struct dentry *dentry; |
ebeecd2b | 352 | char *kbuf; |
353 | ||
354 | if (!capable(CAP_SYS_ADMIN)) | |
355 | return -XFS_ERROR(EPERM); | |
356 | if (copy_from_user(&al_hreq, arg, | |
357 | sizeof(compat_xfs_fsop_attrlist_handlereq_t))) | |
358 | return -XFS_ERROR(EFAULT); | |
31978b5c DC |
359 | if (al_hreq.buflen < sizeof(struct attrlist) || |
360 | al_hreq.buflen > XATTR_LIST_MAX) | |
ebeecd2b | 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 | ||
ab596ad8 CH |
369 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
370 | if (IS_ERR(dentry)) | |
371 | return PTR_ERR(dentry); | |
ebeecd2b | 372 | |
ab596ad8 | 373 | error = -ENOMEM; |
fdd3ccee DC |
374 | kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP); |
375 | if (!kbuf) | |
376 | goto out_dput; | |
ebeecd2b | 377 | |
378 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
ab596ad8 | 379 | error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, |
ebeecd2b | 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 | ||
fdd3ccee DC |
387 | out_kfree: |
388 | kmem_free(kbuf); | |
389 | out_dput: | |
ab596ad8 CH |
390 | dput(dentry); |
391 | return error; | |
ebeecd2b | 392 | } |
393 | ||
28750975 | 394 | STATIC int |
395 | xfs_compat_attrmulti_by_handle( | |
ab596ad8 CH |
396 | struct file *parfilp, |
397 | void __user *arg) | |
28750975 | 398 | { |
399 | int error; | |
400 | compat_xfs_attr_multiop_t *ops; | |
401 | compat_xfs_fsop_attrmulti_handlereq_t am_hreq; | |
ab596ad8 | 402 | struct dentry *dentry; |
28750975 | 403 | unsigned int i, size; |
a9273ca5 | 404 | unsigned char *attr_name; |
28750975 | 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 | ||
fda168c2 ZW |
412 | /* overflow check */ |
413 | if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t)) | |
414 | return -E2BIG; | |
415 | ||
ab596ad8 CH |
416 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
417 | if (IS_ERR(dentry)) | |
418 | return PTR_ERR(dentry); | |
28750975 | 419 | |
420 | error = E2BIG; | |
421 | size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); | |
422 | if (!size || size > 16 * PAGE_SIZE) | |
ab596ad8 | 423 | goto out_dput; |
28750975 | 424 | |
0e639bde LZ |
425 | ops = memdup_user(compat_ptr(am_hreq.ops), size); |
426 | if (IS_ERR(ops)) { | |
427 | error = PTR_ERR(ops); | |
ab596ad8 | 428 | goto out_dput; |
0e639bde | 429 | } |
28750975 | 430 | |
431 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
432 | if (!attr_name) | |
433 | goto out_kfree_ops; | |
434 | ||
28750975 | 435 | error = 0; |
436 | for (i = 0; i < am_hreq.opcount; i++) { | |
a9273ca5 | 437 | ops[i].am_error = strncpy_from_user((char *)attr_name, |
28750975 | 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: | |
ab596ad8 CH |
447 | ops[i].am_error = xfs_attrmulti_attr_get( |
448 | dentry->d_inode, attr_name, | |
28750975 | 449 | compat_ptr(ops[i].am_attrvalue), |
450 | &ops[i].am_length, ops[i].am_flags); | |
451 | break; | |
452 | case ATTR_OP_SET: | |
a561be71 | 453 | ops[i].am_error = mnt_want_write_file(parfilp); |
62e194ec CH |
454 | if (ops[i].am_error) |
455 | break; | |
ab596ad8 CH |
456 | ops[i].am_error = xfs_attrmulti_attr_set( |
457 | dentry->d_inode, attr_name, | |
28750975 | 458 | compat_ptr(ops[i].am_attrvalue), |
459 | ops[i].am_length, ops[i].am_flags); | |
2a79f17e | 460 | mnt_drop_write_file(parfilp); |
28750975 | 461 | break; |
462 | case ATTR_OP_REMOVE: | |
a561be71 | 463 | ops[i].am_error = mnt_want_write_file(parfilp); |
62e194ec CH |
464 | if (ops[i].am_error) |
465 | break; | |
ab596ad8 CH |
466 | ops[i].am_error = xfs_attrmulti_attr_remove( |
467 | dentry->d_inode, attr_name, | |
468 | ops[i].am_flags); | |
2a79f17e | 469 | mnt_drop_write_file(parfilp); |
28750975 | 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); | |
ab596ad8 CH |
482 | out_dput: |
483 | dput(dentry); | |
28750975 | 484 | return -error; |
485 | } | |
486 | ||
710d62aa | 487 | STATIC int |
488 | xfs_compat_fssetdm_by_handle( | |
ab596ad8 CH |
489 | struct file *parfilp, |
490 | void __user *arg) | |
710d62aa | 491 | { |
492 | int error; | |
493 | struct fsdmidata fsd; | |
494 | compat_xfs_fsop_setdm_handlereq_t dmhreq; | |
ab596ad8 | 495 | struct dentry *dentry; |
710d62aa | 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 | ||
ab596ad8 CH |
503 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq); |
504 | if (IS_ERR(dentry)) | |
505 | return PTR_ERR(dentry); | |
710d62aa | 506 | |
ab596ad8 | 507 | if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) { |
710d62aa | 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 | ||
ab596ad8 | 517 | error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask, |
710d62aa | 518 | fsd.fsd_dmstate); |
519 | ||
520 | out: | |
ab596ad8 | 521 | dput(dentry); |
710d62aa | 522 | return error; |
523 | } | |
524 | ||
4d4be482 CH |
525 | long |
526 | xfs_file_compat_ioctl( | |
527 | struct file *filp, | |
528 | unsigned cmd, | |
529 | unsigned long p) | |
1da177e4 | 530 | { |
496ad9aa | 531 | struct inode *inode = file_inode(filp); |
4d4be482 CH |
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 | ||
cca28fb8 | 541 | trace_xfs_file_compat_ioctl(ip); |
1da177e4 LT |
542 | |
543 | switch (cmd) { | |
e5d412f1 | 544 | /* No size or alignment issues on any arch */ |
1da177e4 | 545 | case XFS_IOC_DIOINFO: |
1da177e4 | 546 | case XFS_IOC_FSGEOMETRY: |
1da177e4 LT |
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: | |
1da177e4 LT |
554 | case XFS_IOC_FSCOUNTS: |
555 | case XFS_IOC_SET_RESBLKS: | |
556 | case XFS_IOC_GET_RESBLKS: | |
1da177e4 | 557 | case XFS_IOC_FSGROWFSLOG: |
1da177e4 LT |
558 | case XFS_IOC_GOINGDOWN: |
559 | case XFS_IOC_ERROR_INJECTION: | |
560 | case XFS_IOC_ERROR_CLEARALL: | |
4d4be482 | 561 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 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: | |
44722352 | 575 | case XFS_IOC_ZERO_RANGE: |
4d4be482 | 576 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 577 | #else |
526c420c ES |
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: | |
8c1fdd0b CH |
585 | case XFS_IOC_UNRESVSP64_32: |
586 | case XFS_IOC_ZERO_RANGE_32: { | |
d5547f9f | 587 | struct xfs_flock64 bf; |
588 | ||
589 | if (xfs_compat_flock64_copyin(&bf, arg)) | |
590 | return -XFS_ERROR(EFAULT); | |
526c420c | 591 | cmd = _NATIVE_IOC(cmd, struct xfs_flock64); |
d5547f9f | 592 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); |
593 | } | |
547e00c3 | 594 | case XFS_IOC_FSGEOMETRY_V1_32: |
d5547f9f | 595 | return xfs_compat_ioc_fsgeometry_v1(mp, arg); |
471d5910 | 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); | |
d9457dc0 JK |
601 | error = mnt_want_write_file(filp); |
602 | if (error) | |
603 | return error; | |
471d5910 | 604 | error = xfs_growfs_data(mp, &in); |
d9457dc0 | 605 | mnt_drop_write_file(filp); |
471d5910 | 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); | |
d9457dc0 JK |
613 | error = mnt_want_write_file(filp); |
614 | if (error) | |
615 | return error; | |
471d5910 | 616 | error = xfs_growfs_rt(mp, &in); |
d9457dc0 | 617 | mnt_drop_write_file(filp); |
471d5910 | 618 | return -error; |
619 | } | |
1da177e4 | 620 | #endif |
e5d412f1 | 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); | |
4d4be482 | 626 | return xfs_file_ioctl(filp, cmd, p); |
3725867d | 627 | case XFS_IOC_SWAPEXT_32: { |
e5d412f1 | 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); | |
d9457dc0 JK |
636 | error = mnt_want_write_file(filp); |
637 | if (error) | |
638 | return error; | |
a133d952 | 639 | error = xfs_ioc_swapext(&sxp); |
d9457dc0 | 640 | mnt_drop_write_file(filp); |
e5d412f1 | 641 | return -error; |
642 | } | |
faa63e95 MM |
643 | case XFS_IOC_FSBULKSTAT_32: |
644 | case XFS_IOC_FSBULKSTAT_SINGLE_32: | |
645 | case XFS_IOC_FSINUMBERS_32: | |
2ee4fa5c | 646 | return xfs_compat_ioc_bulkstat(mp, cmd, arg); |
1fa503df MM |
647 | case XFS_IOC_FD_TO_HANDLE_32: |
648 | case XFS_IOC_PATH_TO_HANDLE_32: | |
d5547f9f | 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); | |
1fa503df | 654 | cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); |
d5547f9f | 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); | |
ab596ad8 | 662 | return xfs_open_by_handle(filp, &hreq); |
d5547f9f | 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); | |
ab596ad8 | 669 | return xfs_readlink_by_handle(filp, &hreq); |
d5547f9f | 670 | } |
ebeecd2b | 671 | case XFS_IOC_ATTRLIST_BY_HANDLE_32: |
ab596ad8 | 672 | return xfs_compat_attrlist_by_handle(filp, arg); |
28750975 | 673 | case XFS_IOC_ATTRMULTI_BY_HANDLE_32: |
ab596ad8 | 674 | return xfs_compat_attrmulti_by_handle(filp, arg); |
710d62aa | 675 | case XFS_IOC_FSSETDM_BY_HANDLE_32: |
ab596ad8 | 676 | return xfs_compat_fssetdm_by_handle(filp, arg); |
1da177e4 | 677 | default: |
d5547f9f | 678 | return -XFS_ERROR(ENOIOCTLCMD); |
1da177e4 | 679 | } |
1da177e4 | 680 | } |