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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" | |
faa63e95 MM |
31 | #include "xfs_mount.h" |
32 | #include "xfs_bmap_btree.h" | |
1da177e4 | 33 | #include "xfs_vnode.h" |
faa63e95 MM |
34 | #include "xfs_dinode.h" |
35 | #include "xfs_inode.h" | |
36 | #include "xfs_itable.h" | |
37 | #include "xfs_error.h" | |
1da177e4 | 38 | #include "xfs_dfrag.h" |
739bfb2a | 39 | #include "xfs_vnodeops.h" |
d5547f9f | 40 | #include "xfs_fsops.h" |
471d5910 | 41 | #include "xfs_alloc.h" |
42 | #include "xfs_rtalloc.h" | |
ebeecd2b | 43 | #include "xfs_attr.h" |
d5547f9f | 44 | #include "xfs_ioctl.h" |
a8272ce0 | 45 | #include "xfs_ioctl32.h" |
0b1b213f | 46 | #include "xfs_trace.h" |
1da177e4 | 47 | |
526c420c ES |
48 | #define _NATIVE_IOC(cmd, type) \ |
49 | _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) | |
50 | ||
ffae263a | 51 | #ifdef BROKEN_X86_ALIGNMENT |
d5547f9f | 52 | STATIC int |
53 | xfs_compat_flock64_copyin( | |
54 | xfs_flock64_t *bf, | |
55 | compat_xfs_flock64_t __user *arg32) | |
526c420c | 56 | { |
d5547f9f | 57 | if (get_user(bf->l_type, &arg32->l_type) || |
58 | get_user(bf->l_whence, &arg32->l_whence) || | |
59 | get_user(bf->l_start, &arg32->l_start) || | |
60 | get_user(bf->l_len, &arg32->l_len) || | |
61 | get_user(bf->l_sysid, &arg32->l_sysid) || | |
62 | get_user(bf->l_pid, &arg32->l_pid) || | |
63 | copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32))) | |
64 | return -XFS_ERROR(EFAULT); | |
65 | return 0; | |
526c420c ES |
66 | } |
67 | ||
d5547f9f | 68 | STATIC int |
69 | xfs_compat_ioc_fsgeometry_v1( | |
70 | struct xfs_mount *mp, | |
71 | compat_xfs_fsop_geom_v1_t __user *arg32) | |
547e00c3 | 72 | { |
d5547f9f | 73 | xfs_fsop_geom_t fsgeo; |
74 | int error; | |
547e00c3 | 75 | |
d5547f9f | 76 | error = xfs_fs_geometry(mp, &fsgeo, 3); |
77 | if (error) | |
78 | return -error; | |
79 | /* The 32-bit variant simply has some padding at the end */ | |
80 | if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) | |
81 | return -XFS_ERROR(EFAULT); | |
82 | return 0; | |
547e00c3 MM |
83 | } |
84 | ||
471d5910 | 85 | STATIC int |
86 | xfs_compat_growfs_data_copyin( | |
87 | struct xfs_growfs_data *in, | |
88 | compat_xfs_growfs_data_t __user *arg32) | |
89 | { | |
90 | if (get_user(in->newblocks, &arg32->newblocks) || | |
91 | get_user(in->imaxpct, &arg32->imaxpct)) | |
92 | return -XFS_ERROR(EFAULT); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | STATIC int | |
97 | xfs_compat_growfs_rt_copyin( | |
98 | struct xfs_growfs_rt *in, | |
99 | compat_xfs_growfs_rt_t __user *arg32) | |
100 | { | |
101 | if (get_user(in->newblocks, &arg32->newblocks) || | |
102 | get_user(in->extsize, &arg32->extsize)) | |
103 | return -XFS_ERROR(EFAULT); | |
104 | return 0; | |
105 | } | |
106 | ||
d5547f9f | 107 | STATIC int |
108 | xfs_inumbers_fmt_compat( | |
109 | void __user *ubuffer, | |
110 | const xfs_inogrp_t *buffer, | |
111 | long count, | |
112 | long *written) | |
faa63e95 | 113 | { |
d5547f9f | 114 | compat_xfs_inogrp_t __user *p32 = ubuffer; |
115 | long i; | |
faa63e95 MM |
116 | |
117 | for (i = 0; i < count; i++) { | |
118 | if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || | |
119 | put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || | |
120 | put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) | |
d5547f9f | 121 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
122 | } |
123 | *written = count * sizeof(*p32); | |
124 | return 0; | |
125 | } | |
126 | ||
1da177e4 | 127 | #else |
faa63e95 | 128 | #define xfs_inumbers_fmt_compat xfs_inumbers_fmt |
e5d412f1 | 129 | #endif /* BROKEN_X86_ALIGNMENT */ |
faa63e95 | 130 | |
e94fc4a4 | 131 | STATIC int |
132 | xfs_ioctl32_bstime_copyin( | |
133 | xfs_bstime_t *bstime, | |
134 | compat_xfs_bstime_t __user *bstime32) | |
135 | { | |
136 | compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */ | |
137 | ||
138 | if (get_user(sec32, &bstime32->tv_sec) || | |
139 | get_user(bstime->tv_nsec, &bstime32->tv_nsec)) | |
140 | return -XFS_ERROR(EFAULT); | |
141 | bstime->tv_sec = sec32; | |
142 | return 0; | |
143 | } | |
144 | ||
145 | /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */ | |
146 | STATIC int | |
147 | xfs_ioctl32_bstat_copyin( | |
148 | xfs_bstat_t *bstat, | |
149 | compat_xfs_bstat_t __user *bstat32) | |
150 | { | |
151 | if (get_user(bstat->bs_ino, &bstat32->bs_ino) || | |
152 | get_user(bstat->bs_mode, &bstat32->bs_mode) || | |
153 | get_user(bstat->bs_nlink, &bstat32->bs_nlink) || | |
154 | get_user(bstat->bs_uid, &bstat32->bs_uid) || | |
155 | get_user(bstat->bs_gid, &bstat32->bs_gid) || | |
156 | get_user(bstat->bs_rdev, &bstat32->bs_rdev) || | |
157 | get_user(bstat->bs_blksize, &bstat32->bs_blksize) || | |
158 | get_user(bstat->bs_size, &bstat32->bs_size) || | |
159 | xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || | |
160 | xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || | |
161 | xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || | |
162 | get_user(bstat->bs_blocks, &bstat32->bs_size) || | |
163 | get_user(bstat->bs_xflags, &bstat32->bs_size) || | |
164 | get_user(bstat->bs_extsize, &bstat32->bs_extsize) || | |
165 | get_user(bstat->bs_extents, &bstat32->bs_extents) || | |
166 | get_user(bstat->bs_gen, &bstat32->bs_gen) || | |
6743099c AM |
167 | get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) || |
168 | get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) || | |
e94fc4a4 | 169 | get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || |
170 | get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || | |
171 | get_user(bstat->bs_aextents, &bstat32->bs_aextents)) | |
172 | return -XFS_ERROR(EFAULT); | |
173 | return 0; | |
174 | } | |
175 | ||
faa63e95 MM |
176 | /* XFS_IOC_FSBULKSTAT and friends */ |
177 | ||
d5547f9f | 178 | STATIC int |
179 | xfs_bstime_store_compat( | |
180 | compat_xfs_bstime_t __user *p32, | |
181 | const xfs_bstime_t *p) | |
faa63e95 | 182 | { |
d5547f9f | 183 | __s32 sec32; |
faa63e95 MM |
184 | |
185 | sec32 = p->tv_sec; | |
186 | if (put_user(sec32, &p32->tv_sec) || | |
187 | put_user(p->tv_nsec, &p32->tv_nsec)) | |
d5547f9f | 188 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
189 | return 0; |
190 | } | |
191 | ||
65fbaf24 | 192 | /* Return 0 on success or positive error (to xfs_bulkstat()) */ |
d5547f9f | 193 | STATIC int |
194 | xfs_bulkstat_one_fmt_compat( | |
faa63e95 | 195 | void __user *ubuffer, |
65fbaf24 | 196 | int ubsize, |
197 | int *ubused, | |
faa63e95 MM |
198 | const xfs_bstat_t *buffer) |
199 | { | |
d5547f9f | 200 | compat_xfs_bstat_t __user *p32 = ubuffer; |
faa63e95 | 201 | |
65fbaf24 | 202 | if (ubsize < sizeof(*p32)) |
203 | return XFS_ERROR(ENOMEM); | |
204 | ||
205 | if (put_user(buffer->bs_ino, &p32->bs_ino) || | |
206 | put_user(buffer->bs_mode, &p32->bs_mode) || | |
207 | put_user(buffer->bs_nlink, &p32->bs_nlink) || | |
208 | put_user(buffer->bs_uid, &p32->bs_uid) || | |
209 | put_user(buffer->bs_gid, &p32->bs_gid) || | |
210 | put_user(buffer->bs_rdev, &p32->bs_rdev) || | |
211 | put_user(buffer->bs_blksize, &p32->bs_blksize) || | |
212 | put_user(buffer->bs_size, &p32->bs_size) || | |
faa63e95 MM |
213 | xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || |
214 | xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || | |
215 | xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || | |
65fbaf24 | 216 | put_user(buffer->bs_blocks, &p32->bs_blocks) || |
217 | put_user(buffer->bs_xflags, &p32->bs_xflags) || | |
218 | put_user(buffer->bs_extsize, &p32->bs_extsize) || | |
219 | put_user(buffer->bs_extents, &p32->bs_extents) || | |
220 | put_user(buffer->bs_gen, &p32->bs_gen) || | |
221 | put_user(buffer->bs_projid, &p32->bs_projid) || | |
6743099c | 222 | put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) || |
65fbaf24 | 223 | put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || |
224 | put_user(buffer->bs_dmstate, &p32->bs_dmstate) || | |
faa63e95 | 225 | put_user(buffer->bs_aextents, &p32->bs_aextents)) |
65fbaf24 | 226 | return XFS_ERROR(EFAULT); |
227 | if (ubused) | |
228 | *ubused = sizeof(*p32); | |
229 | return 0; | |
faa63e95 MM |
230 | } |
231 | ||
2ee4fa5c | 232 | STATIC int |
233 | xfs_bulkstat_one_compat( | |
234 | xfs_mount_t *mp, /* mount point for filesystem */ | |
235 | xfs_ino_t ino, /* inode number to get data for */ | |
236 | void __user *buffer, /* buffer to place output in */ | |
237 | int ubsize, /* size of buffer */ | |
2ee4fa5c | 238 | int *ubused, /* bytes used by me */ |
2ee4fa5c | 239 | int *stat) /* BULKSTAT_RV_... */ |
240 | { | |
241 | return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, | |
7b6259e7 | 242 | xfs_bulkstat_one_fmt_compat, |
7dce11db | 243 | ubused, stat); |
2ee4fa5c | 244 | } |
245 | ||
faa63e95 MM |
246 | /* copied from xfs_ioctl.c */ |
247 | STATIC int | |
2ee4fa5c | 248 | xfs_compat_ioc_bulkstat( |
249 | xfs_mount_t *mp, | |
250 | unsigned int cmd, | |
251 | compat_xfs_fsop_bulkreq_t __user *p32) | |
1da177e4 | 252 | { |
1da177e4 | 253 | u32 addr; |
faa63e95 MM |
254 | xfs_fsop_bulkreq_t bulkreq; |
255 | int count; /* # of records returned */ | |
256 | xfs_ino_t inlast; /* last inode number */ | |
257 | int done; | |
258 | int error; | |
259 | ||
260 | /* done = 1 if there are more stats to get and if bulkstat */ | |
261 | /* should be called again (unused here, but used in dmapi) */ | |
1da177e4 | 262 | |
faa63e95 | 263 | if (!capable(CAP_SYS_ADMIN)) |
d5547f9f | 264 | return -XFS_ERROR(EPERM); |
faa63e95 MM |
265 | |
266 | if (XFS_FORCED_SHUTDOWN(mp)) | |
267 | return -XFS_ERROR(EIO); | |
268 | ||
269 | if (get_user(addr, &p32->lastip)) | |
d5547f9f | 270 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
271 | bulkreq.lastip = compat_ptr(addr); |
272 | if (get_user(bulkreq.icount, &p32->icount) || | |
273 | get_user(addr, &p32->ubuffer)) | |
d5547f9f | 274 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
275 | bulkreq.ubuffer = compat_ptr(addr); |
276 | if (get_user(addr, &p32->ocount)) | |
d5547f9f | 277 | return -XFS_ERROR(EFAULT); |
faa63e95 | 278 | bulkreq.ocount = compat_ptr(addr); |
1da177e4 | 279 | |
faa63e95 MM |
280 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) |
281 | return -XFS_ERROR(EFAULT); | |
282 | ||
283 | if ((count = bulkreq.icount) <= 0) | |
284 | return -XFS_ERROR(EINVAL); | |
285 | ||
cd57e594 LM |
286 | if (bulkreq.ubuffer == NULL) |
287 | return -XFS_ERROR(EINVAL); | |
288 | ||
af819d27 | 289 | if (cmd == XFS_IOC_FSINUMBERS_32) { |
faa63e95 MM |
290 | error = xfs_inumbers(mp, &inlast, &count, |
291 | bulkreq.ubuffer, xfs_inumbers_fmt_compat); | |
af819d27 | 292 | } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { |
293 | int res; | |
294 | ||
295 | error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, | |
7b6259e7 | 296 | sizeof(compat_xfs_bstat_t), 0, &res); |
af819d27 | 297 | } else if (cmd == XFS_IOC_FSBULKSTAT_32) { |
faa63e95 | 298 | error = xfs_bulkstat(mp, &inlast, &count, |
7dce11db CH |
299 | xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), |
300 | bulkreq.ubuffer, &done); | |
af819d27 | 301 | } else |
302 | error = XFS_ERROR(EINVAL); | |
faa63e95 MM |
303 | if (error) |
304 | return -error; | |
305 | ||
306 | if (bulkreq.ocount != NULL) { | |
307 | if (copy_to_user(bulkreq.lastip, &inlast, | |
308 | sizeof(xfs_ino_t))) | |
309 | return -XFS_ERROR(EFAULT); | |
310 | ||
311 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
312 | return -XFS_ERROR(EFAULT); | |
313 | } | |
314 | ||
315 | return 0; | |
1da177e4 | 316 | } |
faa63e95 | 317 | |
d5547f9f | 318 | STATIC int |
319 | xfs_compat_handlereq_copyin( | |
320 | xfs_fsop_handlereq_t *hreq, | |
321 | compat_xfs_fsop_handlereq_t __user *arg32) | |
1fa503df | 322 | { |
d5547f9f | 323 | compat_xfs_fsop_handlereq_t hreq32; |
324 | ||
325 | if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) | |
326 | return -XFS_ERROR(EFAULT); | |
327 | ||
328 | hreq->fd = hreq32.fd; | |
329 | hreq->path = compat_ptr(hreq32.path); | |
330 | hreq->oflags = hreq32.oflags; | |
331 | hreq->ihandle = compat_ptr(hreq32.ihandle); | |
332 | hreq->ihandlen = hreq32.ihandlen; | |
333 | hreq->ohandle = compat_ptr(hreq32.ohandle); | |
334 | hreq->ohandlen = compat_ptr(hreq32.ohandlen); | |
335 | ||
336 | return 0; | |
1fa503df MM |
337 | } |
338 | ||
ab596ad8 CH |
339 | STATIC struct dentry * |
340 | xfs_compat_handlereq_to_dentry( | |
341 | struct file *parfilp, | |
342 | compat_xfs_fsop_handlereq_t *hreq) | |
ebeecd2b | 343 | { |
ab596ad8 CH |
344 | return xfs_handle_to_dentry(parfilp, |
345 | compat_ptr(hreq->ihandle), hreq->ihandlen); | |
ebeecd2b | 346 | } |
347 | ||
348 | STATIC int | |
349 | xfs_compat_attrlist_by_handle( | |
ab596ad8 CH |
350 | struct file *parfilp, |
351 | void __user *arg) | |
ebeecd2b | 352 | { |
353 | int error; | |
354 | attrlist_cursor_kern_t *cursor; | |
355 | compat_xfs_fsop_attrlist_handlereq_t al_hreq; | |
ab596ad8 | 356 | struct dentry *dentry; |
ebeecd2b | 357 | char *kbuf; |
358 | ||
359 | if (!capable(CAP_SYS_ADMIN)) | |
360 | return -XFS_ERROR(EPERM); | |
361 | if (copy_from_user(&al_hreq, arg, | |
362 | sizeof(compat_xfs_fsop_attrlist_handlereq_t))) | |
363 | return -XFS_ERROR(EFAULT); | |
364 | if (al_hreq.buflen > XATTR_LIST_MAX) | |
365 | return -XFS_ERROR(EINVAL); | |
366 | ||
367 | /* | |
368 | * Reject flags, only allow namespaces. | |
369 | */ | |
370 | if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) | |
371 | return -XFS_ERROR(EINVAL); | |
372 | ||
ab596ad8 CH |
373 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
374 | if (IS_ERR(dentry)) | |
375 | return PTR_ERR(dentry); | |
ebeecd2b | 376 | |
ab596ad8 | 377 | error = -ENOMEM; |
ebeecd2b | 378 | kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL); |
379 | if (!kbuf) | |
ab596ad8 | 380 | goto out_dput; |
ebeecd2b | 381 | |
382 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
ab596ad8 | 383 | error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, |
ebeecd2b | 384 | al_hreq.flags, cursor); |
385 | if (error) | |
386 | goto out_kfree; | |
387 | ||
388 | if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen)) | |
389 | error = -EFAULT; | |
390 | ||
391 | out_kfree: | |
392 | kfree(kbuf); | |
ab596ad8 CH |
393 | out_dput: |
394 | dput(dentry); | |
395 | return error; | |
ebeecd2b | 396 | } |
397 | ||
28750975 | 398 | STATIC int |
399 | xfs_compat_attrmulti_by_handle( | |
ab596ad8 CH |
400 | struct file *parfilp, |
401 | void __user *arg) | |
28750975 | 402 | { |
403 | int error; | |
404 | compat_xfs_attr_multiop_t *ops; | |
405 | compat_xfs_fsop_attrmulti_handlereq_t am_hreq; | |
ab596ad8 | 406 | struct dentry *dentry; |
28750975 | 407 | unsigned int i, size; |
a9273ca5 | 408 | unsigned char *attr_name; |
28750975 | 409 | |
410 | if (!capable(CAP_SYS_ADMIN)) | |
411 | return -XFS_ERROR(EPERM); | |
412 | if (copy_from_user(&am_hreq, arg, | |
413 | sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) | |
414 | return -XFS_ERROR(EFAULT); | |
415 | ||
fda168c2 ZW |
416 | /* overflow check */ |
417 | if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t)) | |
418 | return -E2BIG; | |
419 | ||
ab596ad8 CH |
420 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
421 | if (IS_ERR(dentry)) | |
422 | return PTR_ERR(dentry); | |
28750975 | 423 | |
424 | error = E2BIG; | |
425 | size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); | |
426 | if (!size || size > 16 * PAGE_SIZE) | |
ab596ad8 | 427 | goto out_dput; |
28750975 | 428 | |
0e639bde LZ |
429 | ops = memdup_user(compat_ptr(am_hreq.ops), size); |
430 | if (IS_ERR(ops)) { | |
431 | error = PTR_ERR(ops); | |
ab596ad8 | 432 | goto out_dput; |
0e639bde | 433 | } |
28750975 | 434 | |
435 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
436 | if (!attr_name) | |
437 | goto out_kfree_ops; | |
438 | ||
28750975 | 439 | error = 0; |
440 | for (i = 0; i < am_hreq.opcount; i++) { | |
a9273ca5 | 441 | ops[i].am_error = strncpy_from_user((char *)attr_name, |
28750975 | 442 | compat_ptr(ops[i].am_attrname), |
443 | MAXNAMELEN); | |
444 | if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) | |
445 | error = -ERANGE; | |
446 | if (ops[i].am_error < 0) | |
447 | break; | |
448 | ||
449 | switch (ops[i].am_opcode) { | |
450 | case ATTR_OP_GET: | |
ab596ad8 CH |
451 | ops[i].am_error = xfs_attrmulti_attr_get( |
452 | dentry->d_inode, attr_name, | |
28750975 | 453 | compat_ptr(ops[i].am_attrvalue), |
454 | &ops[i].am_length, ops[i].am_flags); | |
455 | break; | |
456 | case ATTR_OP_SET: | |
a561be71 | 457 | ops[i].am_error = mnt_want_write_file(parfilp); |
62e194ec CH |
458 | if (ops[i].am_error) |
459 | break; | |
ab596ad8 CH |
460 | ops[i].am_error = xfs_attrmulti_attr_set( |
461 | dentry->d_inode, attr_name, | |
28750975 | 462 | compat_ptr(ops[i].am_attrvalue), |
463 | ops[i].am_length, ops[i].am_flags); | |
62e194ec | 464 | mnt_drop_write(parfilp->f_path.mnt); |
28750975 | 465 | break; |
466 | case ATTR_OP_REMOVE: | |
a561be71 | 467 | ops[i].am_error = mnt_want_write_file(parfilp); |
62e194ec CH |
468 | if (ops[i].am_error) |
469 | break; | |
ab596ad8 CH |
470 | ops[i].am_error = xfs_attrmulti_attr_remove( |
471 | dentry->d_inode, attr_name, | |
472 | ops[i].am_flags); | |
62e194ec | 473 | mnt_drop_write(parfilp->f_path.mnt); |
28750975 | 474 | break; |
475 | default: | |
476 | ops[i].am_error = EINVAL; | |
477 | } | |
478 | } | |
479 | ||
480 | if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) | |
481 | error = XFS_ERROR(EFAULT); | |
482 | ||
483 | kfree(attr_name); | |
484 | out_kfree_ops: | |
485 | kfree(ops); | |
ab596ad8 CH |
486 | out_dput: |
487 | dput(dentry); | |
28750975 | 488 | return -error; |
489 | } | |
490 | ||
710d62aa | 491 | STATIC int |
492 | xfs_compat_fssetdm_by_handle( | |
ab596ad8 CH |
493 | struct file *parfilp, |
494 | void __user *arg) | |
710d62aa | 495 | { |
496 | int error; | |
497 | struct fsdmidata fsd; | |
498 | compat_xfs_fsop_setdm_handlereq_t dmhreq; | |
ab596ad8 | 499 | struct dentry *dentry; |
710d62aa | 500 | |
501 | if (!capable(CAP_MKNOD)) | |
502 | return -XFS_ERROR(EPERM); | |
503 | if (copy_from_user(&dmhreq, arg, | |
504 | sizeof(compat_xfs_fsop_setdm_handlereq_t))) | |
505 | return -XFS_ERROR(EFAULT); | |
506 | ||
ab596ad8 CH |
507 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq); |
508 | if (IS_ERR(dentry)) | |
509 | return PTR_ERR(dentry); | |
710d62aa | 510 | |
ab596ad8 | 511 | if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) { |
710d62aa | 512 | error = -XFS_ERROR(EPERM); |
513 | goto out; | |
514 | } | |
515 | ||
516 | if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) { | |
517 | error = -XFS_ERROR(EFAULT); | |
518 | goto out; | |
519 | } | |
520 | ||
ab596ad8 | 521 | error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask, |
710d62aa | 522 | fsd.fsd_dmstate); |
523 | ||
524 | out: | |
ab596ad8 | 525 | dput(dentry); |
710d62aa | 526 | return error; |
527 | } | |
528 | ||
4d4be482 CH |
529 | long |
530 | xfs_file_compat_ioctl( | |
531 | struct file *filp, | |
532 | unsigned cmd, | |
533 | unsigned long p) | |
1da177e4 | 534 | { |
4d4be482 CH |
535 | struct inode *inode = filp->f_path.dentry->d_inode; |
536 | struct xfs_inode *ip = XFS_I(inode); | |
537 | struct xfs_mount *mp = ip->i_mount; | |
538 | void __user *arg = (void __user *)p; | |
539 | int ioflags = 0; | |
540 | int error; | |
541 | ||
542 | if (filp->f_mode & FMODE_NOCMTIME) | |
543 | ioflags |= IO_INVIS; | |
544 | ||
cca28fb8 | 545 | trace_xfs_file_compat_ioctl(ip); |
1da177e4 LT |
546 | |
547 | switch (cmd) { | |
e5d412f1 | 548 | /* No size or alignment issues on any arch */ |
1da177e4 | 549 | case XFS_IOC_DIOINFO: |
1da177e4 | 550 | case XFS_IOC_FSGEOMETRY: |
1da177e4 LT |
551 | case XFS_IOC_FSGETXATTR: |
552 | case XFS_IOC_FSSETXATTR: | |
553 | case XFS_IOC_FSGETXATTRA: | |
554 | case XFS_IOC_FSSETDM: | |
555 | case XFS_IOC_GETBMAP: | |
556 | case XFS_IOC_GETBMAPA: | |
557 | case XFS_IOC_GETBMAPX: | |
1da177e4 LT |
558 | case XFS_IOC_FSCOUNTS: |
559 | case XFS_IOC_SET_RESBLKS: | |
560 | case XFS_IOC_GET_RESBLKS: | |
1da177e4 | 561 | case XFS_IOC_FSGROWFSLOG: |
1da177e4 LT |
562 | case XFS_IOC_GOINGDOWN: |
563 | case XFS_IOC_ERROR_INJECTION: | |
564 | case XFS_IOC_ERROR_CLEARALL: | |
4d4be482 | 565 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 566 | #ifndef BROKEN_X86_ALIGNMENT |
567 | /* These are handled fine if no alignment issues */ | |
568 | case XFS_IOC_ALLOCSP: | |
569 | case XFS_IOC_FREESP: | |
570 | case XFS_IOC_RESVSP: | |
571 | case XFS_IOC_UNRESVSP: | |
572 | case XFS_IOC_ALLOCSP64: | |
573 | case XFS_IOC_FREESP64: | |
574 | case XFS_IOC_RESVSP64: | |
575 | case XFS_IOC_UNRESVSP64: | |
576 | case XFS_IOC_FSGEOMETRY_V1: | |
577 | case XFS_IOC_FSGROWFSDATA: | |
578 | case XFS_IOC_FSGROWFSRT: | |
44722352 | 579 | case XFS_IOC_ZERO_RANGE: |
4d4be482 | 580 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 581 | #else |
526c420c ES |
582 | case XFS_IOC_ALLOCSP_32: |
583 | case XFS_IOC_FREESP_32: | |
584 | case XFS_IOC_ALLOCSP64_32: | |
585 | case XFS_IOC_FREESP64_32: | |
586 | case XFS_IOC_RESVSP_32: | |
587 | case XFS_IOC_UNRESVSP_32: | |
588 | case XFS_IOC_RESVSP64_32: | |
8c1fdd0b CH |
589 | case XFS_IOC_UNRESVSP64_32: |
590 | case XFS_IOC_ZERO_RANGE_32: { | |
d5547f9f | 591 | struct xfs_flock64 bf; |
592 | ||
593 | if (xfs_compat_flock64_copyin(&bf, arg)) | |
594 | return -XFS_ERROR(EFAULT); | |
526c420c | 595 | cmd = _NATIVE_IOC(cmd, struct xfs_flock64); |
d5547f9f | 596 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); |
597 | } | |
547e00c3 | 598 | case XFS_IOC_FSGEOMETRY_V1_32: |
d5547f9f | 599 | return xfs_compat_ioc_fsgeometry_v1(mp, arg); |
471d5910 | 600 | case XFS_IOC_FSGROWFSDATA_32: { |
601 | struct xfs_growfs_data in; | |
602 | ||
603 | if (xfs_compat_growfs_data_copyin(&in, arg)) | |
604 | return -XFS_ERROR(EFAULT); | |
605 | error = xfs_growfs_data(mp, &in); | |
606 | return -error; | |
607 | } | |
608 | case XFS_IOC_FSGROWFSRT_32: { | |
609 | struct xfs_growfs_rt in; | |
610 | ||
611 | if (xfs_compat_growfs_rt_copyin(&in, arg)) | |
612 | return -XFS_ERROR(EFAULT); | |
613 | error = xfs_growfs_rt(mp, &in); | |
614 | return -error; | |
615 | } | |
1da177e4 | 616 | #endif |
e5d412f1 | 617 | /* long changes size, but xfs only copiese out 32 bits */ |
618 | case XFS_IOC_GETXFLAGS_32: | |
619 | case XFS_IOC_SETXFLAGS_32: | |
620 | case XFS_IOC_GETVERSION_32: | |
621 | cmd = _NATIVE_IOC(cmd, long); | |
4d4be482 | 622 | return xfs_file_ioctl(filp, cmd, p); |
3725867d | 623 | case XFS_IOC_SWAPEXT_32: { |
e5d412f1 | 624 | struct xfs_swapext sxp; |
625 | struct compat_xfs_swapext __user *sxu = arg; | |
626 | ||
627 | /* Bulk copy in up to the sx_stat field, then copy bstat */ | |
628 | if (copy_from_user(&sxp, sxu, | |
629 | offsetof(struct xfs_swapext, sx_stat)) || | |
630 | xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) | |
631 | return -XFS_ERROR(EFAULT); | |
632 | error = xfs_swapext(&sxp); | |
633 | return -error; | |
634 | } | |
faa63e95 MM |
635 | case XFS_IOC_FSBULKSTAT_32: |
636 | case XFS_IOC_FSBULKSTAT_SINGLE_32: | |
637 | case XFS_IOC_FSINUMBERS_32: | |
2ee4fa5c | 638 | return xfs_compat_ioc_bulkstat(mp, cmd, arg); |
1fa503df MM |
639 | case XFS_IOC_FD_TO_HANDLE_32: |
640 | case XFS_IOC_PATH_TO_HANDLE_32: | |
d5547f9f | 641 | case XFS_IOC_PATH_TO_FSHANDLE_32: { |
642 | struct xfs_fsop_handlereq hreq; | |
643 | ||
644 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
645 | return -XFS_ERROR(EFAULT); | |
1fa503df | 646 | cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); |
d5547f9f | 647 | return xfs_find_handle(cmd, &hreq); |
648 | } | |
649 | case XFS_IOC_OPEN_BY_HANDLE_32: { | |
650 | struct xfs_fsop_handlereq hreq; | |
651 | ||
652 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
653 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 654 | return xfs_open_by_handle(filp, &hreq); |
d5547f9f | 655 | } |
656 | case XFS_IOC_READLINK_BY_HANDLE_32: { | |
657 | struct xfs_fsop_handlereq hreq; | |
658 | ||
659 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
660 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 661 | return xfs_readlink_by_handle(filp, &hreq); |
d5547f9f | 662 | } |
ebeecd2b | 663 | case XFS_IOC_ATTRLIST_BY_HANDLE_32: |
ab596ad8 | 664 | return xfs_compat_attrlist_by_handle(filp, arg); |
28750975 | 665 | case XFS_IOC_ATTRMULTI_BY_HANDLE_32: |
ab596ad8 | 666 | return xfs_compat_attrmulti_by_handle(filp, arg); |
710d62aa | 667 | case XFS_IOC_FSSETDM_BY_HANDLE_32: |
ab596ad8 | 668 | return xfs_compat_fssetdm_by_handle(filp, arg); |
1da177e4 | 669 | default: |
d5547f9f | 670 | return -XFS_ERROR(ENOIOCTLCMD); |
1da177e4 | 671 | } |
1da177e4 | 672 | } |