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> |
1da177e4 | 21 | #include <asm/uaccess.h> |
1da177e4 | 22 | #include "xfs.h" |
1da177e4 | 23 | #include "xfs_fs.h" |
faa63e95 MM |
24 | #include "xfs_bit.h" |
25 | #include "xfs_log.h" | |
26 | #include "xfs_inum.h" | |
27 | #include "xfs_trans.h" | |
28 | #include "xfs_sb.h" | |
29 | #include "xfs_ag.h" | |
30 | #include "xfs_dir2.h" | |
31 | #include "xfs_dmapi.h" | |
32 | #include "xfs_mount.h" | |
33 | #include "xfs_bmap_btree.h" | |
34 | #include "xfs_attr_sf.h" | |
35 | #include "xfs_dir2_sf.h" | |
1da177e4 | 36 | #include "xfs_vnode.h" |
faa63e95 MM |
37 | #include "xfs_dinode.h" |
38 | #include "xfs_inode.h" | |
39 | #include "xfs_itable.h" | |
40 | #include "xfs_error.h" | |
1da177e4 | 41 | #include "xfs_dfrag.h" |
739bfb2a | 42 | #include "xfs_vnodeops.h" |
d5547f9f | 43 | #include "xfs_fsops.h" |
471d5910 | 44 | #include "xfs_alloc.h" |
45 | #include "xfs_rtalloc.h" | |
ebeecd2b | 46 | #include "xfs_attr.h" |
d5547f9f | 47 | #include "xfs_ioctl.h" |
a8272ce0 | 48 | #include "xfs_ioctl32.h" |
1da177e4 | 49 | |
526c420c ES |
50 | #define _NATIVE_IOC(cmd, type) \ |
51 | _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) | |
52 | ||
ffae263a | 53 | #ifdef BROKEN_X86_ALIGNMENT |
d5547f9f | 54 | STATIC int |
55 | xfs_compat_flock64_copyin( | |
56 | xfs_flock64_t *bf, | |
57 | compat_xfs_flock64_t __user *arg32) | |
526c420c | 58 | { |
d5547f9f | 59 | if (get_user(bf->l_type, &arg32->l_type) || |
60 | get_user(bf->l_whence, &arg32->l_whence) || | |
61 | get_user(bf->l_start, &arg32->l_start) || | |
62 | get_user(bf->l_len, &arg32->l_len) || | |
63 | get_user(bf->l_sysid, &arg32->l_sysid) || | |
64 | get_user(bf->l_pid, &arg32->l_pid) || | |
65 | copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32))) | |
66 | return -XFS_ERROR(EFAULT); | |
67 | return 0; | |
526c420c ES |
68 | } |
69 | ||
d5547f9f | 70 | STATIC int |
71 | xfs_compat_ioc_fsgeometry_v1( | |
72 | struct xfs_mount *mp, | |
73 | compat_xfs_fsop_geom_v1_t __user *arg32) | |
547e00c3 | 74 | { |
d5547f9f | 75 | xfs_fsop_geom_t fsgeo; |
76 | int error; | |
547e00c3 | 77 | |
d5547f9f | 78 | error = xfs_fs_geometry(mp, &fsgeo, 3); |
79 | if (error) | |
80 | return -error; | |
81 | /* The 32-bit variant simply has some padding at the end */ | |
82 | if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) | |
83 | return -XFS_ERROR(EFAULT); | |
84 | return 0; | |
547e00c3 MM |
85 | } |
86 | ||
471d5910 | 87 | STATIC int |
88 | xfs_compat_growfs_data_copyin( | |
89 | struct xfs_growfs_data *in, | |
90 | compat_xfs_growfs_data_t __user *arg32) | |
91 | { | |
92 | if (get_user(in->newblocks, &arg32->newblocks) || | |
93 | get_user(in->imaxpct, &arg32->imaxpct)) | |
94 | return -XFS_ERROR(EFAULT); | |
95 | return 0; | |
96 | } | |
97 | ||
98 | STATIC int | |
99 | xfs_compat_growfs_rt_copyin( | |
100 | struct xfs_growfs_rt *in, | |
101 | compat_xfs_growfs_rt_t __user *arg32) | |
102 | { | |
103 | if (get_user(in->newblocks, &arg32->newblocks) || | |
104 | get_user(in->extsize, &arg32->extsize)) | |
105 | return -XFS_ERROR(EFAULT); | |
106 | return 0; | |
107 | } | |
108 | ||
d5547f9f | 109 | STATIC int |
110 | xfs_inumbers_fmt_compat( | |
111 | void __user *ubuffer, | |
112 | const xfs_inogrp_t *buffer, | |
113 | long count, | |
114 | long *written) | |
faa63e95 | 115 | { |
d5547f9f | 116 | compat_xfs_inogrp_t __user *p32 = ubuffer; |
117 | long i; | |
faa63e95 MM |
118 | |
119 | for (i = 0; i < count; i++) { | |
120 | if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || | |
121 | put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || | |
122 | put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) | |
d5547f9f | 123 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
124 | } |
125 | *written = count * sizeof(*p32); | |
126 | return 0; | |
127 | } | |
128 | ||
1da177e4 | 129 | #else |
faa63e95 | 130 | #define xfs_inumbers_fmt_compat xfs_inumbers_fmt |
e5d412f1 | 131 | #endif /* BROKEN_X86_ALIGNMENT */ |
faa63e95 | 132 | |
e94fc4a4 | 133 | STATIC int |
134 | xfs_ioctl32_bstime_copyin( | |
135 | xfs_bstime_t *bstime, | |
136 | compat_xfs_bstime_t __user *bstime32) | |
137 | { | |
138 | compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */ | |
139 | ||
140 | if (get_user(sec32, &bstime32->tv_sec) || | |
141 | get_user(bstime->tv_nsec, &bstime32->tv_nsec)) | |
142 | return -XFS_ERROR(EFAULT); | |
143 | bstime->tv_sec = sec32; | |
144 | return 0; | |
145 | } | |
146 | ||
147 | /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */ | |
148 | STATIC int | |
149 | xfs_ioctl32_bstat_copyin( | |
150 | xfs_bstat_t *bstat, | |
151 | compat_xfs_bstat_t __user *bstat32) | |
152 | { | |
153 | if (get_user(bstat->bs_ino, &bstat32->bs_ino) || | |
154 | get_user(bstat->bs_mode, &bstat32->bs_mode) || | |
155 | get_user(bstat->bs_nlink, &bstat32->bs_nlink) || | |
156 | get_user(bstat->bs_uid, &bstat32->bs_uid) || | |
157 | get_user(bstat->bs_gid, &bstat32->bs_gid) || | |
158 | get_user(bstat->bs_rdev, &bstat32->bs_rdev) || | |
159 | get_user(bstat->bs_blksize, &bstat32->bs_blksize) || | |
160 | get_user(bstat->bs_size, &bstat32->bs_size) || | |
161 | xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || | |
162 | xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || | |
163 | xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || | |
164 | get_user(bstat->bs_blocks, &bstat32->bs_size) || | |
165 | get_user(bstat->bs_xflags, &bstat32->bs_size) || | |
166 | get_user(bstat->bs_extsize, &bstat32->bs_extsize) || | |
167 | get_user(bstat->bs_extents, &bstat32->bs_extents) || | |
168 | get_user(bstat->bs_gen, &bstat32->bs_gen) || | |
169 | get_user(bstat->bs_projid, &bstat32->bs_projid) || | |
170 | get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || | |
171 | get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || | |
172 | get_user(bstat->bs_aextents, &bstat32->bs_aextents)) | |
173 | return -XFS_ERROR(EFAULT); | |
174 | return 0; | |
175 | } | |
176 | ||
faa63e95 MM |
177 | /* XFS_IOC_FSBULKSTAT and friends */ |
178 | ||
d5547f9f | 179 | STATIC int |
180 | xfs_bstime_store_compat( | |
181 | compat_xfs_bstime_t __user *p32, | |
182 | const xfs_bstime_t *p) | |
faa63e95 | 183 | { |
d5547f9f | 184 | __s32 sec32; |
faa63e95 MM |
185 | |
186 | sec32 = p->tv_sec; | |
187 | if (put_user(sec32, &p32->tv_sec) || | |
188 | put_user(p->tv_nsec, &p32->tv_nsec)) | |
d5547f9f | 189 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
190 | return 0; |
191 | } | |
192 | ||
65fbaf24 | 193 | /* Return 0 on success or positive error (to xfs_bulkstat()) */ |
d5547f9f | 194 | STATIC int |
195 | xfs_bulkstat_one_fmt_compat( | |
faa63e95 | 196 | void __user *ubuffer, |
65fbaf24 | 197 | int ubsize, |
198 | int *ubused, | |
faa63e95 MM |
199 | const xfs_bstat_t *buffer) |
200 | { | |
d5547f9f | 201 | compat_xfs_bstat_t __user *p32 = ubuffer; |
faa63e95 | 202 | |
65fbaf24 | 203 | if (ubsize < sizeof(*p32)) |
204 | return XFS_ERROR(ENOMEM); | |
205 | ||
206 | if (put_user(buffer->bs_ino, &p32->bs_ino) || | |
207 | put_user(buffer->bs_mode, &p32->bs_mode) || | |
208 | put_user(buffer->bs_nlink, &p32->bs_nlink) || | |
209 | put_user(buffer->bs_uid, &p32->bs_uid) || | |
210 | put_user(buffer->bs_gid, &p32->bs_gid) || | |
211 | put_user(buffer->bs_rdev, &p32->bs_rdev) || | |
212 | put_user(buffer->bs_blksize, &p32->bs_blksize) || | |
213 | put_user(buffer->bs_size, &p32->bs_size) || | |
faa63e95 MM |
214 | xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || |
215 | xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || | |
216 | xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || | |
65fbaf24 | 217 | put_user(buffer->bs_blocks, &p32->bs_blocks) || |
218 | put_user(buffer->bs_xflags, &p32->bs_xflags) || | |
219 | put_user(buffer->bs_extsize, &p32->bs_extsize) || | |
220 | put_user(buffer->bs_extents, &p32->bs_extents) || | |
221 | put_user(buffer->bs_gen, &p32->bs_gen) || | |
222 | put_user(buffer->bs_projid, &p32->bs_projid) || | |
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 */ | |
238 | void *private_data, /* my private data */ | |
239 | xfs_daddr_t bno, /* starting bno of inode cluster */ | |
240 | int *ubused, /* bytes used by me */ | |
241 | void *dibuff, /* on-disk inode buffer */ | |
242 | int *stat) /* BULKSTAT_RV_... */ | |
243 | { | |
244 | return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, | |
245 | xfs_bulkstat_one_fmt_compat, bno, | |
246 | ubused, dibuff, stat); | |
247 | } | |
248 | ||
faa63e95 MM |
249 | /* copied from xfs_ioctl.c */ |
250 | STATIC int | |
2ee4fa5c | 251 | xfs_compat_ioc_bulkstat( |
252 | xfs_mount_t *mp, | |
253 | unsigned int cmd, | |
254 | compat_xfs_fsop_bulkreq_t __user *p32) | |
1da177e4 | 255 | { |
1da177e4 | 256 | u32 addr; |
faa63e95 MM |
257 | xfs_fsop_bulkreq_t bulkreq; |
258 | int count; /* # of records returned */ | |
259 | xfs_ino_t inlast; /* last inode number */ | |
260 | int done; | |
261 | int error; | |
262 | ||
263 | /* done = 1 if there are more stats to get and if bulkstat */ | |
264 | /* should be called again (unused here, but used in dmapi) */ | |
1da177e4 | 265 | |
faa63e95 | 266 | if (!capable(CAP_SYS_ADMIN)) |
d5547f9f | 267 | return -XFS_ERROR(EPERM); |
faa63e95 MM |
268 | |
269 | if (XFS_FORCED_SHUTDOWN(mp)) | |
270 | return -XFS_ERROR(EIO); | |
271 | ||
272 | if (get_user(addr, &p32->lastip)) | |
d5547f9f | 273 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
274 | bulkreq.lastip = compat_ptr(addr); |
275 | if (get_user(bulkreq.icount, &p32->icount) || | |
276 | get_user(addr, &p32->ubuffer)) | |
d5547f9f | 277 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
278 | bulkreq.ubuffer = compat_ptr(addr); |
279 | if (get_user(addr, &p32->ocount)) | |
d5547f9f | 280 | return -XFS_ERROR(EFAULT); |
faa63e95 | 281 | bulkreq.ocount = compat_ptr(addr); |
1da177e4 | 282 | |
faa63e95 MM |
283 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) |
284 | return -XFS_ERROR(EFAULT); | |
285 | ||
286 | if ((count = bulkreq.icount) <= 0) | |
287 | return -XFS_ERROR(EINVAL); | |
288 | ||
cd57e594 LM |
289 | if (bulkreq.ubuffer == NULL) |
290 | return -XFS_ERROR(EINVAL); | |
291 | ||
af819d27 | 292 | if (cmd == XFS_IOC_FSINUMBERS_32) { |
faa63e95 MM |
293 | error = xfs_inumbers(mp, &inlast, &count, |
294 | bulkreq.ubuffer, xfs_inumbers_fmt_compat); | |
af819d27 | 295 | } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { |
296 | int res; | |
297 | ||
298 | error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, | |
299 | sizeof(compat_xfs_bstat_t), | |
300 | NULL, 0, NULL, NULL, &res); | |
301 | } else if (cmd == XFS_IOC_FSBULKSTAT_32) { | |
faa63e95 | 302 | error = xfs_bulkstat(mp, &inlast, &count, |
2ee4fa5c | 303 | xfs_bulkstat_one_compat, NULL, |
faa63e95 MM |
304 | sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, |
305 | BULKSTAT_FG_QUICK, &done); | |
af819d27 | 306 | } else |
307 | error = XFS_ERROR(EINVAL); | |
faa63e95 MM |
308 | if (error) |
309 | return -error; | |
310 | ||
311 | if (bulkreq.ocount != NULL) { | |
312 | if (copy_to_user(bulkreq.lastip, &inlast, | |
313 | sizeof(xfs_ino_t))) | |
314 | return -XFS_ERROR(EFAULT); | |
315 | ||
316 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
317 | return -XFS_ERROR(EFAULT); | |
318 | } | |
319 | ||
320 | return 0; | |
1da177e4 | 321 | } |
faa63e95 | 322 | |
d5547f9f | 323 | STATIC int |
324 | xfs_compat_handlereq_copyin( | |
325 | xfs_fsop_handlereq_t *hreq, | |
326 | compat_xfs_fsop_handlereq_t __user *arg32) | |
1fa503df | 327 | { |
d5547f9f | 328 | compat_xfs_fsop_handlereq_t hreq32; |
329 | ||
330 | if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) | |
331 | return -XFS_ERROR(EFAULT); | |
332 | ||
333 | hreq->fd = hreq32.fd; | |
334 | hreq->path = compat_ptr(hreq32.path); | |
335 | hreq->oflags = hreq32.oflags; | |
336 | hreq->ihandle = compat_ptr(hreq32.ihandle); | |
337 | hreq->ihandlen = hreq32.ihandlen; | |
338 | hreq->ohandle = compat_ptr(hreq32.ohandle); | |
339 | hreq->ohandlen = compat_ptr(hreq32.ohandlen); | |
340 | ||
341 | return 0; | |
1fa503df MM |
342 | } |
343 | ||
ab596ad8 CH |
344 | STATIC struct dentry * |
345 | xfs_compat_handlereq_to_dentry( | |
346 | struct file *parfilp, | |
347 | compat_xfs_fsop_handlereq_t *hreq) | |
ebeecd2b | 348 | { |
ab596ad8 CH |
349 | return xfs_handle_to_dentry(parfilp, |
350 | compat_ptr(hreq->ihandle), hreq->ihandlen); | |
ebeecd2b | 351 | } |
352 | ||
353 | STATIC int | |
354 | xfs_compat_attrlist_by_handle( | |
ab596ad8 CH |
355 | struct file *parfilp, |
356 | void __user *arg) | |
ebeecd2b | 357 | { |
358 | int error; | |
359 | attrlist_cursor_kern_t *cursor; | |
360 | compat_xfs_fsop_attrlist_handlereq_t al_hreq; | |
ab596ad8 | 361 | struct dentry *dentry; |
ebeecd2b | 362 | char *kbuf; |
363 | ||
364 | if (!capable(CAP_SYS_ADMIN)) | |
365 | return -XFS_ERROR(EPERM); | |
366 | if (copy_from_user(&al_hreq, arg, | |
367 | sizeof(compat_xfs_fsop_attrlist_handlereq_t))) | |
368 | return -XFS_ERROR(EFAULT); | |
369 | if (al_hreq.buflen > XATTR_LIST_MAX) | |
370 | return -XFS_ERROR(EINVAL); | |
371 | ||
372 | /* | |
373 | * Reject flags, only allow namespaces. | |
374 | */ | |
375 | if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) | |
376 | return -XFS_ERROR(EINVAL); | |
377 | ||
ab596ad8 CH |
378 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
379 | if (IS_ERR(dentry)) | |
380 | return PTR_ERR(dentry); | |
ebeecd2b | 381 | |
ab596ad8 | 382 | error = -ENOMEM; |
ebeecd2b | 383 | kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL); |
384 | if (!kbuf) | |
ab596ad8 | 385 | goto out_dput; |
ebeecd2b | 386 | |
387 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
ab596ad8 | 388 | error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, |
ebeecd2b | 389 | al_hreq.flags, cursor); |
390 | if (error) | |
391 | goto out_kfree; | |
392 | ||
393 | if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen)) | |
394 | error = -EFAULT; | |
395 | ||
396 | out_kfree: | |
397 | kfree(kbuf); | |
ab596ad8 CH |
398 | out_dput: |
399 | dput(dentry); | |
400 | return error; | |
ebeecd2b | 401 | } |
402 | ||
28750975 | 403 | STATIC int |
404 | xfs_compat_attrmulti_by_handle( | |
ab596ad8 CH |
405 | struct file *parfilp, |
406 | void __user *arg) | |
28750975 | 407 | { |
408 | int error; | |
409 | compat_xfs_attr_multiop_t *ops; | |
410 | compat_xfs_fsop_attrmulti_handlereq_t am_hreq; | |
ab596ad8 | 411 | struct dentry *dentry; |
28750975 | 412 | unsigned int i, size; |
413 | char *attr_name; | |
414 | ||
415 | if (!capable(CAP_SYS_ADMIN)) | |
416 | return -XFS_ERROR(EPERM); | |
417 | if (copy_from_user(&am_hreq, arg, | |
418 | sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) | |
419 | return -XFS_ERROR(EFAULT); | |
420 | ||
ab596ad8 CH |
421 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
422 | if (IS_ERR(dentry)) | |
423 | return PTR_ERR(dentry); | |
28750975 | 424 | |
425 | error = E2BIG; | |
426 | size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); | |
427 | if (!size || size > 16 * PAGE_SIZE) | |
ab596ad8 | 428 | goto out_dput; |
28750975 | 429 | |
0e639bde LZ |
430 | ops = memdup_user(compat_ptr(am_hreq.ops), size); |
431 | if (IS_ERR(ops)) { | |
432 | error = PTR_ERR(ops); | |
ab596ad8 | 433 | goto out_dput; |
0e639bde | 434 | } |
28750975 | 435 | |
436 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
437 | if (!attr_name) | |
438 | goto out_kfree_ops; | |
439 | ||
28750975 | 440 | error = 0; |
441 | for (i = 0; i < am_hreq.opcount; i++) { | |
442 | ops[i].am_error = strncpy_from_user(attr_name, | |
443 | compat_ptr(ops[i].am_attrname), | |
444 | MAXNAMELEN); | |
445 | if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) | |
446 | error = -ERANGE; | |
447 | if (ops[i].am_error < 0) | |
448 | break; | |
449 | ||
450 | switch (ops[i].am_opcode) { | |
451 | case ATTR_OP_GET: | |
ab596ad8 CH |
452 | ops[i].am_error = xfs_attrmulti_attr_get( |
453 | dentry->d_inode, attr_name, | |
28750975 | 454 | compat_ptr(ops[i].am_attrvalue), |
455 | &ops[i].am_length, ops[i].am_flags); | |
456 | break; | |
457 | case ATTR_OP_SET: | |
62e194ec CH |
458 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
459 | if (ops[i].am_error) | |
460 | break; | |
ab596ad8 CH |
461 | ops[i].am_error = xfs_attrmulti_attr_set( |
462 | dentry->d_inode, attr_name, | |
28750975 | 463 | compat_ptr(ops[i].am_attrvalue), |
464 | ops[i].am_length, ops[i].am_flags); | |
62e194ec | 465 | mnt_drop_write(parfilp->f_path.mnt); |
28750975 | 466 | break; |
467 | case ATTR_OP_REMOVE: | |
62e194ec CH |
468 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
469 | if (ops[i].am_error) | |
470 | break; | |
ab596ad8 CH |
471 | ops[i].am_error = xfs_attrmulti_attr_remove( |
472 | dentry->d_inode, attr_name, | |
473 | ops[i].am_flags); | |
62e194ec | 474 | mnt_drop_write(parfilp->f_path.mnt); |
28750975 | 475 | break; |
476 | default: | |
477 | ops[i].am_error = EINVAL; | |
478 | } | |
479 | } | |
480 | ||
481 | if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) | |
482 | error = XFS_ERROR(EFAULT); | |
483 | ||
484 | kfree(attr_name); | |
485 | out_kfree_ops: | |
486 | kfree(ops); | |
ab596ad8 CH |
487 | out_dput: |
488 | dput(dentry); | |
28750975 | 489 | return -error; |
490 | } | |
491 | ||
710d62aa | 492 | STATIC int |
493 | xfs_compat_fssetdm_by_handle( | |
ab596ad8 CH |
494 | struct file *parfilp, |
495 | void __user *arg) | |
710d62aa | 496 | { |
497 | int error; | |
498 | struct fsdmidata fsd; | |
499 | compat_xfs_fsop_setdm_handlereq_t dmhreq; | |
ab596ad8 | 500 | struct dentry *dentry; |
710d62aa | 501 | |
502 | if (!capable(CAP_MKNOD)) | |
503 | return -XFS_ERROR(EPERM); | |
504 | if (copy_from_user(&dmhreq, arg, | |
505 | sizeof(compat_xfs_fsop_setdm_handlereq_t))) | |
506 | return -XFS_ERROR(EFAULT); | |
507 | ||
ab596ad8 CH |
508 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq); |
509 | if (IS_ERR(dentry)) | |
510 | return PTR_ERR(dentry); | |
710d62aa | 511 | |
ab596ad8 | 512 | if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) { |
710d62aa | 513 | error = -XFS_ERROR(EPERM); |
514 | goto out; | |
515 | } | |
516 | ||
517 | if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) { | |
518 | error = -XFS_ERROR(EFAULT); | |
519 | goto out; | |
520 | } | |
521 | ||
ab596ad8 | 522 | error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask, |
710d62aa | 523 | fsd.fsd_dmstate); |
524 | ||
525 | out: | |
ab596ad8 | 526 | dput(dentry); |
710d62aa | 527 | return error; |
528 | } | |
529 | ||
4d4be482 CH |
530 | long |
531 | xfs_file_compat_ioctl( | |
532 | struct file *filp, | |
533 | unsigned cmd, | |
534 | unsigned long p) | |
1da177e4 | 535 | { |
4d4be482 CH |
536 | struct inode *inode = filp->f_path.dentry->d_inode; |
537 | struct xfs_inode *ip = XFS_I(inode); | |
538 | struct xfs_mount *mp = ip->i_mount; | |
539 | void __user *arg = (void __user *)p; | |
540 | int ioflags = 0; | |
541 | int error; | |
542 | ||
543 | if (filp->f_mode & FMODE_NOCMTIME) | |
544 | ioflags |= IO_INVIS; | |
545 | ||
546 | xfs_itrace_entry(ip); | |
1da177e4 LT |
547 | |
548 | switch (cmd) { | |
e5d412f1 | 549 | /* No size or alignment issues on any arch */ |
1da177e4 | 550 | case XFS_IOC_DIOINFO: |
1da177e4 | 551 | case XFS_IOC_FSGEOMETRY: |
1da177e4 LT |
552 | case XFS_IOC_FSGETXATTR: |
553 | case XFS_IOC_FSSETXATTR: | |
554 | case XFS_IOC_FSGETXATTRA: | |
555 | case XFS_IOC_FSSETDM: | |
556 | case XFS_IOC_GETBMAP: | |
557 | case XFS_IOC_GETBMAPA: | |
558 | case XFS_IOC_GETBMAPX: | |
1da177e4 LT |
559 | case XFS_IOC_FSCOUNTS: |
560 | case XFS_IOC_SET_RESBLKS: | |
561 | case XFS_IOC_GET_RESBLKS: | |
1da177e4 | 562 | case XFS_IOC_FSGROWFSLOG: |
1da177e4 LT |
563 | case XFS_IOC_GOINGDOWN: |
564 | case XFS_IOC_ERROR_INJECTION: | |
565 | case XFS_IOC_ERROR_CLEARALL: | |
4d4be482 | 566 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 567 | #ifndef BROKEN_X86_ALIGNMENT |
568 | /* These are handled fine if no alignment issues */ | |
569 | case XFS_IOC_ALLOCSP: | |
570 | case XFS_IOC_FREESP: | |
571 | case XFS_IOC_RESVSP: | |
572 | case XFS_IOC_UNRESVSP: | |
573 | case XFS_IOC_ALLOCSP64: | |
574 | case XFS_IOC_FREESP64: | |
575 | case XFS_IOC_RESVSP64: | |
576 | case XFS_IOC_UNRESVSP64: | |
577 | case XFS_IOC_FSGEOMETRY_V1: | |
578 | case XFS_IOC_FSGROWFSDATA: | |
579 | case XFS_IOC_FSGROWFSRT: | |
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: | |
d5547f9f | 589 | case XFS_IOC_UNRESVSP64_32: { |
590 | struct xfs_flock64 bf; | |
591 | ||
592 | if (xfs_compat_flock64_copyin(&bf, arg)) | |
593 | return -XFS_ERROR(EFAULT); | |
526c420c | 594 | cmd = _NATIVE_IOC(cmd, struct xfs_flock64); |
d5547f9f | 595 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); |
596 | } | |
547e00c3 | 597 | case XFS_IOC_FSGEOMETRY_V1_32: |
d5547f9f | 598 | return xfs_compat_ioc_fsgeometry_v1(mp, arg); |
471d5910 | 599 | case XFS_IOC_FSGROWFSDATA_32: { |
600 | struct xfs_growfs_data in; | |
601 | ||
602 | if (xfs_compat_growfs_data_copyin(&in, arg)) | |
603 | return -XFS_ERROR(EFAULT); | |
604 | error = xfs_growfs_data(mp, &in); | |
605 | return -error; | |
606 | } | |
607 | case XFS_IOC_FSGROWFSRT_32: { | |
608 | struct xfs_growfs_rt in; | |
609 | ||
610 | if (xfs_compat_growfs_rt_copyin(&in, arg)) | |
611 | return -XFS_ERROR(EFAULT); | |
612 | error = xfs_growfs_rt(mp, &in); | |
613 | return -error; | |
614 | } | |
1da177e4 | 615 | #endif |
e5d412f1 | 616 | /* long changes size, but xfs only copiese out 32 bits */ |
617 | case XFS_IOC_GETXFLAGS_32: | |
618 | case XFS_IOC_SETXFLAGS_32: | |
619 | case XFS_IOC_GETVERSION_32: | |
620 | cmd = _NATIVE_IOC(cmd, long); | |
4d4be482 | 621 | return xfs_file_ioctl(filp, cmd, p); |
3725867d | 622 | case XFS_IOC_SWAPEXT_32: { |
e5d412f1 | 623 | struct xfs_swapext sxp; |
624 | struct compat_xfs_swapext __user *sxu = arg; | |
625 | ||
626 | /* Bulk copy in up to the sx_stat field, then copy bstat */ | |
627 | if (copy_from_user(&sxp, sxu, | |
628 | offsetof(struct xfs_swapext, sx_stat)) || | |
629 | xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) | |
630 | return -XFS_ERROR(EFAULT); | |
631 | error = xfs_swapext(&sxp); | |
632 | return -error; | |
633 | } | |
faa63e95 MM |
634 | case XFS_IOC_FSBULKSTAT_32: |
635 | case XFS_IOC_FSBULKSTAT_SINGLE_32: | |
636 | case XFS_IOC_FSINUMBERS_32: | |
2ee4fa5c | 637 | return xfs_compat_ioc_bulkstat(mp, cmd, arg); |
1fa503df MM |
638 | case XFS_IOC_FD_TO_HANDLE_32: |
639 | case XFS_IOC_PATH_TO_HANDLE_32: | |
d5547f9f | 640 | case XFS_IOC_PATH_TO_FSHANDLE_32: { |
641 | struct xfs_fsop_handlereq hreq; | |
642 | ||
643 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
644 | return -XFS_ERROR(EFAULT); | |
1fa503df | 645 | cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); |
d5547f9f | 646 | return xfs_find_handle(cmd, &hreq); |
647 | } | |
648 | case XFS_IOC_OPEN_BY_HANDLE_32: { | |
649 | struct xfs_fsop_handlereq hreq; | |
650 | ||
651 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
652 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 653 | return xfs_open_by_handle(filp, &hreq); |
d5547f9f | 654 | } |
655 | case XFS_IOC_READLINK_BY_HANDLE_32: { | |
656 | struct xfs_fsop_handlereq hreq; | |
657 | ||
658 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
659 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 660 | return xfs_readlink_by_handle(filp, &hreq); |
d5547f9f | 661 | } |
ebeecd2b | 662 | case XFS_IOC_ATTRLIST_BY_HANDLE_32: |
ab596ad8 | 663 | return xfs_compat_attrlist_by_handle(filp, arg); |
28750975 | 664 | case XFS_IOC_ATTRMULTI_BY_HANDLE_32: |
ab596ad8 | 665 | return xfs_compat_attrmulti_by_handle(filp, arg); |
710d62aa | 666 | case XFS_IOC_FSSETDM_BY_HANDLE_32: |
ab596ad8 | 667 | return xfs_compat_fssetdm_by_handle(filp, arg); |
1da177e4 | 668 | default: |
d5547f9f | 669 | return -XFS_ERROR(ENOIOCTLCMD); |
1da177e4 | 670 | } |
1da177e4 | 671 | } |