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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 | 25 | #include "xfs_log.h" |
faa63e95 MM |
26 | #include "xfs_trans.h" |
27 | #include "xfs_sb.h" | |
28 | #include "xfs_ag.h" | |
faa63e95 MM |
29 | #include "xfs_mount.h" |
30 | #include "xfs_bmap_btree.h" | |
1da177e4 | 31 | #include "xfs_vnode.h" |
faa63e95 MM |
32 | #include "xfs_dinode.h" |
33 | #include "xfs_inode.h" | |
34 | #include "xfs_itable.h" | |
35 | #include "xfs_error.h" | |
1da177e4 | 36 | #include "xfs_dfrag.h" |
739bfb2a | 37 | #include "xfs_vnodeops.h" |
d5547f9f | 38 | #include "xfs_fsops.h" |
471d5910 | 39 | #include "xfs_alloc.h" |
40 | #include "xfs_rtalloc.h" | |
ebeecd2b | 41 | #include "xfs_attr.h" |
d5547f9f | 42 | #include "xfs_ioctl.h" |
a8272ce0 | 43 | #include "xfs_ioctl32.h" |
0b1b213f | 44 | #include "xfs_trace.h" |
1da177e4 | 45 | |
526c420c ES |
46 | #define _NATIVE_IOC(cmd, type) \ |
47 | _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) | |
48 | ||
ffae263a | 49 | #ifdef BROKEN_X86_ALIGNMENT |
d5547f9f | 50 | STATIC int |
51 | xfs_compat_flock64_copyin( | |
52 | xfs_flock64_t *bf, | |
53 | compat_xfs_flock64_t __user *arg32) | |
526c420c | 54 | { |
d5547f9f | 55 | if (get_user(bf->l_type, &arg32->l_type) || |
56 | get_user(bf->l_whence, &arg32->l_whence) || | |
57 | get_user(bf->l_start, &arg32->l_start) || | |
58 | get_user(bf->l_len, &arg32->l_len) || | |
59 | get_user(bf->l_sysid, &arg32->l_sysid) || | |
60 | get_user(bf->l_pid, &arg32->l_pid) || | |
61 | copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32))) | |
62 | return -XFS_ERROR(EFAULT); | |
63 | return 0; | |
526c420c ES |
64 | } |
65 | ||
d5547f9f | 66 | STATIC int |
67 | xfs_compat_ioc_fsgeometry_v1( | |
68 | struct xfs_mount *mp, | |
69 | compat_xfs_fsop_geom_v1_t __user *arg32) | |
547e00c3 | 70 | { |
d5547f9f | 71 | xfs_fsop_geom_t fsgeo; |
72 | int error; | |
547e00c3 | 73 | |
d5547f9f | 74 | error = xfs_fs_geometry(mp, &fsgeo, 3); |
75 | if (error) | |
76 | return -error; | |
77 | /* The 32-bit variant simply has some padding at the end */ | |
78 | if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) | |
79 | return -XFS_ERROR(EFAULT); | |
80 | return 0; | |
547e00c3 MM |
81 | } |
82 | ||
471d5910 | 83 | STATIC int |
84 | xfs_compat_growfs_data_copyin( | |
85 | struct xfs_growfs_data *in, | |
86 | compat_xfs_growfs_data_t __user *arg32) | |
87 | { | |
88 | if (get_user(in->newblocks, &arg32->newblocks) || | |
89 | get_user(in->imaxpct, &arg32->imaxpct)) | |
90 | return -XFS_ERROR(EFAULT); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | STATIC int | |
95 | xfs_compat_growfs_rt_copyin( | |
96 | struct xfs_growfs_rt *in, | |
97 | compat_xfs_growfs_rt_t __user *arg32) | |
98 | { | |
99 | if (get_user(in->newblocks, &arg32->newblocks) || | |
100 | get_user(in->extsize, &arg32->extsize)) | |
101 | return -XFS_ERROR(EFAULT); | |
102 | return 0; | |
103 | } | |
104 | ||
d5547f9f | 105 | STATIC int |
106 | xfs_inumbers_fmt_compat( | |
107 | void __user *ubuffer, | |
108 | const xfs_inogrp_t *buffer, | |
109 | long count, | |
110 | long *written) | |
faa63e95 | 111 | { |
d5547f9f | 112 | compat_xfs_inogrp_t __user *p32 = ubuffer; |
113 | long i; | |
faa63e95 MM |
114 | |
115 | for (i = 0; i < count; i++) { | |
116 | if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || | |
117 | put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || | |
118 | put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) | |
d5547f9f | 119 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
120 | } |
121 | *written = count * sizeof(*p32); | |
122 | return 0; | |
123 | } | |
124 | ||
1da177e4 | 125 | #else |
faa63e95 | 126 | #define xfs_inumbers_fmt_compat xfs_inumbers_fmt |
e5d412f1 | 127 | #endif /* BROKEN_X86_ALIGNMENT */ |
faa63e95 | 128 | |
e94fc4a4 | 129 | STATIC int |
130 | xfs_ioctl32_bstime_copyin( | |
131 | xfs_bstime_t *bstime, | |
132 | compat_xfs_bstime_t __user *bstime32) | |
133 | { | |
134 | compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */ | |
135 | ||
136 | if (get_user(sec32, &bstime32->tv_sec) || | |
137 | get_user(bstime->tv_nsec, &bstime32->tv_nsec)) | |
138 | return -XFS_ERROR(EFAULT); | |
139 | bstime->tv_sec = sec32; | |
140 | return 0; | |
141 | } | |
142 | ||
143 | /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */ | |
144 | STATIC int | |
145 | xfs_ioctl32_bstat_copyin( | |
146 | xfs_bstat_t *bstat, | |
147 | compat_xfs_bstat_t __user *bstat32) | |
148 | { | |
149 | if (get_user(bstat->bs_ino, &bstat32->bs_ino) || | |
150 | get_user(bstat->bs_mode, &bstat32->bs_mode) || | |
151 | get_user(bstat->bs_nlink, &bstat32->bs_nlink) || | |
152 | get_user(bstat->bs_uid, &bstat32->bs_uid) || | |
153 | get_user(bstat->bs_gid, &bstat32->bs_gid) || | |
154 | get_user(bstat->bs_rdev, &bstat32->bs_rdev) || | |
155 | get_user(bstat->bs_blksize, &bstat32->bs_blksize) || | |
156 | get_user(bstat->bs_size, &bstat32->bs_size) || | |
157 | xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || | |
158 | xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || | |
159 | xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || | |
160 | get_user(bstat->bs_blocks, &bstat32->bs_size) || | |
161 | get_user(bstat->bs_xflags, &bstat32->bs_size) || | |
162 | get_user(bstat->bs_extsize, &bstat32->bs_extsize) || | |
163 | get_user(bstat->bs_extents, &bstat32->bs_extents) || | |
164 | get_user(bstat->bs_gen, &bstat32->bs_gen) || | |
6743099c AM |
165 | get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) || |
166 | get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) || | |
e94fc4a4 | 167 | get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || |
168 | get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || | |
169 | get_user(bstat->bs_aextents, &bstat32->bs_aextents)) | |
170 | return -XFS_ERROR(EFAULT); | |
171 | return 0; | |
172 | } | |
173 | ||
faa63e95 MM |
174 | /* XFS_IOC_FSBULKSTAT and friends */ |
175 | ||
d5547f9f | 176 | STATIC int |
177 | xfs_bstime_store_compat( | |
178 | compat_xfs_bstime_t __user *p32, | |
179 | const xfs_bstime_t *p) | |
faa63e95 | 180 | { |
d5547f9f | 181 | __s32 sec32; |
faa63e95 MM |
182 | |
183 | sec32 = p->tv_sec; | |
184 | if (put_user(sec32, &p32->tv_sec) || | |
185 | put_user(p->tv_nsec, &p32->tv_nsec)) | |
d5547f9f | 186 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
187 | return 0; |
188 | } | |
189 | ||
65fbaf24 | 190 | /* Return 0 on success or positive error (to xfs_bulkstat()) */ |
d5547f9f | 191 | STATIC int |
192 | xfs_bulkstat_one_fmt_compat( | |
faa63e95 | 193 | void __user *ubuffer, |
65fbaf24 | 194 | int ubsize, |
195 | int *ubused, | |
faa63e95 MM |
196 | const xfs_bstat_t *buffer) |
197 | { | |
d5547f9f | 198 | compat_xfs_bstat_t __user *p32 = ubuffer; |
faa63e95 | 199 | |
65fbaf24 | 200 | if (ubsize < sizeof(*p32)) |
201 | return XFS_ERROR(ENOMEM); | |
202 | ||
203 | if (put_user(buffer->bs_ino, &p32->bs_ino) || | |
204 | put_user(buffer->bs_mode, &p32->bs_mode) || | |
205 | put_user(buffer->bs_nlink, &p32->bs_nlink) || | |
206 | put_user(buffer->bs_uid, &p32->bs_uid) || | |
207 | put_user(buffer->bs_gid, &p32->bs_gid) || | |
208 | put_user(buffer->bs_rdev, &p32->bs_rdev) || | |
209 | put_user(buffer->bs_blksize, &p32->bs_blksize) || | |
210 | put_user(buffer->bs_size, &p32->bs_size) || | |
faa63e95 MM |
211 | xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || |
212 | xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || | |
213 | xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || | |
65fbaf24 | 214 | put_user(buffer->bs_blocks, &p32->bs_blocks) || |
215 | put_user(buffer->bs_xflags, &p32->bs_xflags) || | |
216 | put_user(buffer->bs_extsize, &p32->bs_extsize) || | |
217 | put_user(buffer->bs_extents, &p32->bs_extents) || | |
218 | put_user(buffer->bs_gen, &p32->bs_gen) || | |
219 | put_user(buffer->bs_projid, &p32->bs_projid) || | |
6743099c | 220 | put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) || |
65fbaf24 | 221 | put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || |
222 | put_user(buffer->bs_dmstate, &p32->bs_dmstate) || | |
faa63e95 | 223 | put_user(buffer->bs_aextents, &p32->bs_aextents)) |
65fbaf24 | 224 | return XFS_ERROR(EFAULT); |
225 | if (ubused) | |
226 | *ubused = sizeof(*p32); | |
227 | return 0; | |
faa63e95 MM |
228 | } |
229 | ||
2ee4fa5c | 230 | STATIC int |
231 | xfs_bulkstat_one_compat( | |
232 | xfs_mount_t *mp, /* mount point for filesystem */ | |
233 | xfs_ino_t ino, /* inode number to get data for */ | |
234 | void __user *buffer, /* buffer to place output in */ | |
235 | int ubsize, /* size of buffer */ | |
2ee4fa5c | 236 | int *ubused, /* bytes used by me */ |
2ee4fa5c | 237 | int *stat) /* BULKSTAT_RV_... */ |
238 | { | |
239 | return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, | |
7b6259e7 | 240 | xfs_bulkstat_one_fmt_compat, |
7dce11db | 241 | ubused, stat); |
2ee4fa5c | 242 | } |
243 | ||
faa63e95 MM |
244 | /* copied from xfs_ioctl.c */ |
245 | STATIC int | |
2ee4fa5c | 246 | xfs_compat_ioc_bulkstat( |
247 | xfs_mount_t *mp, | |
248 | unsigned int cmd, | |
249 | compat_xfs_fsop_bulkreq_t __user *p32) | |
1da177e4 | 250 | { |
1da177e4 | 251 | u32 addr; |
faa63e95 MM |
252 | xfs_fsop_bulkreq_t bulkreq; |
253 | int count; /* # of records returned */ | |
254 | xfs_ino_t inlast; /* last inode number */ | |
255 | int done; | |
256 | int error; | |
257 | ||
258 | /* done = 1 if there are more stats to get and if bulkstat */ | |
259 | /* should be called again (unused here, but used in dmapi) */ | |
1da177e4 | 260 | |
faa63e95 | 261 | if (!capable(CAP_SYS_ADMIN)) |
d5547f9f | 262 | return -XFS_ERROR(EPERM); |
faa63e95 MM |
263 | |
264 | if (XFS_FORCED_SHUTDOWN(mp)) | |
265 | return -XFS_ERROR(EIO); | |
266 | ||
267 | if (get_user(addr, &p32->lastip)) | |
d5547f9f | 268 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
269 | bulkreq.lastip = compat_ptr(addr); |
270 | if (get_user(bulkreq.icount, &p32->icount) || | |
271 | get_user(addr, &p32->ubuffer)) | |
d5547f9f | 272 | return -XFS_ERROR(EFAULT); |
faa63e95 MM |
273 | bulkreq.ubuffer = compat_ptr(addr); |
274 | if (get_user(addr, &p32->ocount)) | |
d5547f9f | 275 | return -XFS_ERROR(EFAULT); |
faa63e95 | 276 | bulkreq.ocount = compat_ptr(addr); |
1da177e4 | 277 | |
faa63e95 MM |
278 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) |
279 | return -XFS_ERROR(EFAULT); | |
280 | ||
281 | if ((count = bulkreq.icount) <= 0) | |
282 | return -XFS_ERROR(EINVAL); | |
283 | ||
cd57e594 LM |
284 | if (bulkreq.ubuffer == NULL) |
285 | return -XFS_ERROR(EINVAL); | |
286 | ||
af819d27 | 287 | if (cmd == XFS_IOC_FSINUMBERS_32) { |
faa63e95 MM |
288 | error = xfs_inumbers(mp, &inlast, &count, |
289 | bulkreq.ubuffer, xfs_inumbers_fmt_compat); | |
af819d27 | 290 | } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { |
291 | int res; | |
292 | ||
293 | error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, | |
8d2a5e6e | 294 | sizeof(compat_xfs_bstat_t), NULL, &res); |
af819d27 | 295 | } else if (cmd == XFS_IOC_FSBULKSTAT_32) { |
faa63e95 | 296 | error = xfs_bulkstat(mp, &inlast, &count, |
7dce11db CH |
297 | xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), |
298 | bulkreq.ubuffer, &done); | |
af819d27 | 299 | } else |
300 | error = XFS_ERROR(EINVAL); | |
faa63e95 MM |
301 | if (error) |
302 | return -error; | |
303 | ||
304 | if (bulkreq.ocount != NULL) { | |
305 | if (copy_to_user(bulkreq.lastip, &inlast, | |
306 | sizeof(xfs_ino_t))) | |
307 | return -XFS_ERROR(EFAULT); | |
308 | ||
309 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
310 | return -XFS_ERROR(EFAULT); | |
311 | } | |
312 | ||
313 | return 0; | |
1da177e4 | 314 | } |
faa63e95 | 315 | |
d5547f9f | 316 | STATIC int |
317 | xfs_compat_handlereq_copyin( | |
318 | xfs_fsop_handlereq_t *hreq, | |
319 | compat_xfs_fsop_handlereq_t __user *arg32) | |
1fa503df | 320 | { |
d5547f9f | 321 | compat_xfs_fsop_handlereq_t hreq32; |
322 | ||
323 | if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) | |
324 | return -XFS_ERROR(EFAULT); | |
325 | ||
326 | hreq->fd = hreq32.fd; | |
327 | hreq->path = compat_ptr(hreq32.path); | |
328 | hreq->oflags = hreq32.oflags; | |
329 | hreq->ihandle = compat_ptr(hreq32.ihandle); | |
330 | hreq->ihandlen = hreq32.ihandlen; | |
331 | hreq->ohandle = compat_ptr(hreq32.ohandle); | |
332 | hreq->ohandlen = compat_ptr(hreq32.ohandlen); | |
333 | ||
334 | return 0; | |
1fa503df MM |
335 | } |
336 | ||
ab596ad8 CH |
337 | STATIC struct dentry * |
338 | xfs_compat_handlereq_to_dentry( | |
339 | struct file *parfilp, | |
340 | compat_xfs_fsop_handlereq_t *hreq) | |
ebeecd2b | 341 | { |
ab596ad8 CH |
342 | return xfs_handle_to_dentry(parfilp, |
343 | compat_ptr(hreq->ihandle), hreq->ihandlen); | |
ebeecd2b | 344 | } |
345 | ||
346 | STATIC int | |
347 | xfs_compat_attrlist_by_handle( | |
ab596ad8 CH |
348 | struct file *parfilp, |
349 | void __user *arg) | |
ebeecd2b | 350 | { |
351 | int error; | |
352 | attrlist_cursor_kern_t *cursor; | |
353 | compat_xfs_fsop_attrlist_handlereq_t al_hreq; | |
ab596ad8 | 354 | struct dentry *dentry; |
ebeecd2b | 355 | char *kbuf; |
356 | ||
357 | if (!capable(CAP_SYS_ADMIN)) | |
358 | return -XFS_ERROR(EPERM); | |
359 | if (copy_from_user(&al_hreq, arg, | |
360 | sizeof(compat_xfs_fsop_attrlist_handlereq_t))) | |
361 | return -XFS_ERROR(EFAULT); | |
362 | if (al_hreq.buflen > XATTR_LIST_MAX) | |
363 | return -XFS_ERROR(EINVAL); | |
364 | ||
365 | /* | |
366 | * Reject flags, only allow namespaces. | |
367 | */ | |
368 | if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) | |
369 | return -XFS_ERROR(EINVAL); | |
370 | ||
ab596ad8 CH |
371 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
372 | if (IS_ERR(dentry)) | |
373 | return PTR_ERR(dentry); | |
ebeecd2b | 374 | |
ab596ad8 | 375 | error = -ENOMEM; |
ebeecd2b | 376 | kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL); |
377 | if (!kbuf) | |
ab596ad8 | 378 | goto out_dput; |
ebeecd2b | 379 | |
380 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
ab596ad8 | 381 | error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, |
ebeecd2b | 382 | al_hreq.flags, cursor); |
383 | if (error) | |
384 | goto out_kfree; | |
385 | ||
386 | if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen)) | |
387 | error = -EFAULT; | |
388 | ||
389 | out_kfree: | |
390 | kfree(kbuf); | |
ab596ad8 CH |
391 | out_dput: |
392 | dput(dentry); | |
393 | return error; | |
ebeecd2b | 394 | } |
395 | ||
28750975 | 396 | STATIC int |
397 | xfs_compat_attrmulti_by_handle( | |
ab596ad8 CH |
398 | struct file *parfilp, |
399 | void __user *arg) | |
28750975 | 400 | { |
401 | int error; | |
402 | compat_xfs_attr_multiop_t *ops; | |
403 | compat_xfs_fsop_attrmulti_handlereq_t am_hreq; | |
ab596ad8 | 404 | struct dentry *dentry; |
28750975 | 405 | unsigned int i, size; |
a9273ca5 | 406 | unsigned char *attr_name; |
28750975 | 407 | |
408 | if (!capable(CAP_SYS_ADMIN)) | |
409 | return -XFS_ERROR(EPERM); | |
410 | if (copy_from_user(&am_hreq, arg, | |
411 | sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) | |
412 | return -XFS_ERROR(EFAULT); | |
413 | ||
fda168c2 ZW |
414 | /* overflow check */ |
415 | if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t)) | |
416 | return -E2BIG; | |
417 | ||
ab596ad8 CH |
418 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
419 | if (IS_ERR(dentry)) | |
420 | return PTR_ERR(dentry); | |
28750975 | 421 | |
422 | error = E2BIG; | |
423 | size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); | |
424 | if (!size || size > 16 * PAGE_SIZE) | |
ab596ad8 | 425 | goto out_dput; |
28750975 | 426 | |
0e639bde LZ |
427 | ops = memdup_user(compat_ptr(am_hreq.ops), size); |
428 | if (IS_ERR(ops)) { | |
429 | error = PTR_ERR(ops); | |
ab596ad8 | 430 | goto out_dput; |
0e639bde | 431 | } |
28750975 | 432 | |
433 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
434 | if (!attr_name) | |
435 | goto out_kfree_ops; | |
436 | ||
28750975 | 437 | error = 0; |
438 | for (i = 0; i < am_hreq.opcount; i++) { | |
a9273ca5 | 439 | ops[i].am_error = strncpy_from_user((char *)attr_name, |
28750975 | 440 | compat_ptr(ops[i].am_attrname), |
441 | MAXNAMELEN); | |
442 | if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) | |
443 | error = -ERANGE; | |
444 | if (ops[i].am_error < 0) | |
445 | break; | |
446 | ||
447 | switch (ops[i].am_opcode) { | |
448 | case ATTR_OP_GET: | |
ab596ad8 CH |
449 | ops[i].am_error = xfs_attrmulti_attr_get( |
450 | dentry->d_inode, attr_name, | |
28750975 | 451 | compat_ptr(ops[i].am_attrvalue), |
452 | &ops[i].am_length, ops[i].am_flags); | |
453 | break; | |
454 | case ATTR_OP_SET: | |
a561be71 | 455 | ops[i].am_error = mnt_want_write_file(parfilp); |
62e194ec CH |
456 | if (ops[i].am_error) |
457 | break; | |
ab596ad8 CH |
458 | ops[i].am_error = xfs_attrmulti_attr_set( |
459 | dentry->d_inode, attr_name, | |
28750975 | 460 | compat_ptr(ops[i].am_attrvalue), |
461 | ops[i].am_length, ops[i].am_flags); | |
2a79f17e | 462 | mnt_drop_write_file(parfilp); |
28750975 | 463 | break; |
464 | case ATTR_OP_REMOVE: | |
a561be71 | 465 | ops[i].am_error = mnt_want_write_file(parfilp); |
62e194ec CH |
466 | if (ops[i].am_error) |
467 | break; | |
ab596ad8 CH |
468 | ops[i].am_error = xfs_attrmulti_attr_remove( |
469 | dentry->d_inode, attr_name, | |
470 | ops[i].am_flags); | |
2a79f17e | 471 | mnt_drop_write_file(parfilp); |
28750975 | 472 | break; |
473 | default: | |
474 | ops[i].am_error = EINVAL; | |
475 | } | |
476 | } | |
477 | ||
478 | if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) | |
479 | error = XFS_ERROR(EFAULT); | |
480 | ||
481 | kfree(attr_name); | |
482 | out_kfree_ops: | |
483 | kfree(ops); | |
ab596ad8 CH |
484 | out_dput: |
485 | dput(dentry); | |
28750975 | 486 | return -error; |
487 | } | |
488 | ||
710d62aa | 489 | STATIC int |
490 | xfs_compat_fssetdm_by_handle( | |
ab596ad8 CH |
491 | struct file *parfilp, |
492 | void __user *arg) | |
710d62aa | 493 | { |
494 | int error; | |
495 | struct fsdmidata fsd; | |
496 | compat_xfs_fsop_setdm_handlereq_t dmhreq; | |
ab596ad8 | 497 | struct dentry *dentry; |
710d62aa | 498 | |
499 | if (!capable(CAP_MKNOD)) | |
500 | return -XFS_ERROR(EPERM); | |
501 | if (copy_from_user(&dmhreq, arg, | |
502 | sizeof(compat_xfs_fsop_setdm_handlereq_t))) | |
503 | return -XFS_ERROR(EFAULT); | |
504 | ||
ab596ad8 CH |
505 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq); |
506 | if (IS_ERR(dentry)) | |
507 | return PTR_ERR(dentry); | |
710d62aa | 508 | |
ab596ad8 | 509 | if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) { |
710d62aa | 510 | error = -XFS_ERROR(EPERM); |
511 | goto out; | |
512 | } | |
513 | ||
514 | if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) { | |
515 | error = -XFS_ERROR(EFAULT); | |
516 | goto out; | |
517 | } | |
518 | ||
ab596ad8 | 519 | error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask, |
710d62aa | 520 | fsd.fsd_dmstate); |
521 | ||
522 | out: | |
ab596ad8 | 523 | dput(dentry); |
710d62aa | 524 | return error; |
525 | } | |
526 | ||
4d4be482 CH |
527 | long |
528 | xfs_file_compat_ioctl( | |
529 | struct file *filp, | |
530 | unsigned cmd, | |
531 | unsigned long p) | |
1da177e4 | 532 | { |
4d4be482 CH |
533 | struct inode *inode = filp->f_path.dentry->d_inode; |
534 | struct xfs_inode *ip = XFS_I(inode); | |
535 | struct xfs_mount *mp = ip->i_mount; | |
536 | void __user *arg = (void __user *)p; | |
537 | int ioflags = 0; | |
538 | int error; | |
539 | ||
540 | if (filp->f_mode & FMODE_NOCMTIME) | |
541 | ioflags |= IO_INVIS; | |
542 | ||
cca28fb8 | 543 | trace_xfs_file_compat_ioctl(ip); |
1da177e4 LT |
544 | |
545 | switch (cmd) { | |
e5d412f1 | 546 | /* No size or alignment issues on any arch */ |
1da177e4 | 547 | case XFS_IOC_DIOINFO: |
1da177e4 | 548 | case XFS_IOC_FSGEOMETRY: |
1da177e4 LT |
549 | case XFS_IOC_FSGETXATTR: |
550 | case XFS_IOC_FSSETXATTR: | |
551 | case XFS_IOC_FSGETXATTRA: | |
552 | case XFS_IOC_FSSETDM: | |
553 | case XFS_IOC_GETBMAP: | |
554 | case XFS_IOC_GETBMAPA: | |
555 | case XFS_IOC_GETBMAPX: | |
1da177e4 LT |
556 | case XFS_IOC_FSCOUNTS: |
557 | case XFS_IOC_SET_RESBLKS: | |
558 | case XFS_IOC_GET_RESBLKS: | |
1da177e4 | 559 | case XFS_IOC_FSGROWFSLOG: |
1da177e4 LT |
560 | case XFS_IOC_GOINGDOWN: |
561 | case XFS_IOC_ERROR_INJECTION: | |
562 | case XFS_IOC_ERROR_CLEARALL: | |
4d4be482 | 563 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 564 | #ifndef BROKEN_X86_ALIGNMENT |
565 | /* These are handled fine if no alignment issues */ | |
566 | case XFS_IOC_ALLOCSP: | |
567 | case XFS_IOC_FREESP: | |
568 | case XFS_IOC_RESVSP: | |
569 | case XFS_IOC_UNRESVSP: | |
570 | case XFS_IOC_ALLOCSP64: | |
571 | case XFS_IOC_FREESP64: | |
572 | case XFS_IOC_RESVSP64: | |
573 | case XFS_IOC_UNRESVSP64: | |
574 | case XFS_IOC_FSGEOMETRY_V1: | |
575 | case XFS_IOC_FSGROWFSDATA: | |
576 | case XFS_IOC_FSGROWFSRT: | |
44722352 | 577 | case XFS_IOC_ZERO_RANGE: |
4d4be482 | 578 | return xfs_file_ioctl(filp, cmd, p); |
e5d412f1 | 579 | #else |
526c420c ES |
580 | case XFS_IOC_ALLOCSP_32: |
581 | case XFS_IOC_FREESP_32: | |
582 | case XFS_IOC_ALLOCSP64_32: | |
583 | case XFS_IOC_FREESP64_32: | |
584 | case XFS_IOC_RESVSP_32: | |
585 | case XFS_IOC_UNRESVSP_32: | |
586 | case XFS_IOC_RESVSP64_32: | |
8c1fdd0b CH |
587 | case XFS_IOC_UNRESVSP64_32: |
588 | case XFS_IOC_ZERO_RANGE_32: { | |
d5547f9f | 589 | struct xfs_flock64 bf; |
590 | ||
591 | if (xfs_compat_flock64_copyin(&bf, arg)) | |
592 | return -XFS_ERROR(EFAULT); | |
526c420c | 593 | cmd = _NATIVE_IOC(cmd, struct xfs_flock64); |
d5547f9f | 594 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); |
595 | } | |
547e00c3 | 596 | case XFS_IOC_FSGEOMETRY_V1_32: |
d5547f9f | 597 | return xfs_compat_ioc_fsgeometry_v1(mp, arg); |
471d5910 | 598 | case XFS_IOC_FSGROWFSDATA_32: { |
599 | struct xfs_growfs_data in; | |
600 | ||
601 | if (xfs_compat_growfs_data_copyin(&in, arg)) | |
602 | return -XFS_ERROR(EFAULT); | |
d9457dc0 JK |
603 | error = mnt_want_write_file(filp); |
604 | if (error) | |
605 | return error; | |
471d5910 | 606 | error = xfs_growfs_data(mp, &in); |
d9457dc0 | 607 | mnt_drop_write_file(filp); |
471d5910 | 608 | return -error; |
609 | } | |
610 | case XFS_IOC_FSGROWFSRT_32: { | |
611 | struct xfs_growfs_rt in; | |
612 | ||
613 | if (xfs_compat_growfs_rt_copyin(&in, arg)) | |
614 | return -XFS_ERROR(EFAULT); | |
d9457dc0 JK |
615 | error = mnt_want_write_file(filp); |
616 | if (error) | |
617 | return error; | |
471d5910 | 618 | error = xfs_growfs_rt(mp, &in); |
d9457dc0 | 619 | mnt_drop_write_file(filp); |
471d5910 | 620 | return -error; |
621 | } | |
1da177e4 | 622 | #endif |
e5d412f1 | 623 | /* long changes size, but xfs only copiese out 32 bits */ |
624 | case XFS_IOC_GETXFLAGS_32: | |
625 | case XFS_IOC_SETXFLAGS_32: | |
626 | case XFS_IOC_GETVERSION_32: | |
627 | cmd = _NATIVE_IOC(cmd, long); | |
4d4be482 | 628 | return xfs_file_ioctl(filp, cmd, p); |
3725867d | 629 | case XFS_IOC_SWAPEXT_32: { |
e5d412f1 | 630 | struct xfs_swapext sxp; |
631 | struct compat_xfs_swapext __user *sxu = arg; | |
632 | ||
633 | /* Bulk copy in up to the sx_stat field, then copy bstat */ | |
634 | if (copy_from_user(&sxp, sxu, | |
635 | offsetof(struct xfs_swapext, sx_stat)) || | |
636 | xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) | |
637 | return -XFS_ERROR(EFAULT); | |
d9457dc0 JK |
638 | error = mnt_want_write_file(filp); |
639 | if (error) | |
640 | return error; | |
e5d412f1 | 641 | error = xfs_swapext(&sxp); |
d9457dc0 | 642 | mnt_drop_write_file(filp); |
e5d412f1 | 643 | return -error; |
644 | } | |
faa63e95 MM |
645 | case XFS_IOC_FSBULKSTAT_32: |
646 | case XFS_IOC_FSBULKSTAT_SINGLE_32: | |
647 | case XFS_IOC_FSINUMBERS_32: | |
2ee4fa5c | 648 | return xfs_compat_ioc_bulkstat(mp, cmd, arg); |
1fa503df MM |
649 | case XFS_IOC_FD_TO_HANDLE_32: |
650 | case XFS_IOC_PATH_TO_HANDLE_32: | |
d5547f9f | 651 | case XFS_IOC_PATH_TO_FSHANDLE_32: { |
652 | struct xfs_fsop_handlereq hreq; | |
653 | ||
654 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
655 | return -XFS_ERROR(EFAULT); | |
1fa503df | 656 | cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); |
d5547f9f | 657 | return xfs_find_handle(cmd, &hreq); |
658 | } | |
659 | case XFS_IOC_OPEN_BY_HANDLE_32: { | |
660 | struct xfs_fsop_handlereq hreq; | |
661 | ||
662 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
663 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 664 | return xfs_open_by_handle(filp, &hreq); |
d5547f9f | 665 | } |
666 | case XFS_IOC_READLINK_BY_HANDLE_32: { | |
667 | struct xfs_fsop_handlereq hreq; | |
668 | ||
669 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
670 | return -XFS_ERROR(EFAULT); | |
ab596ad8 | 671 | return xfs_readlink_by_handle(filp, &hreq); |
d5547f9f | 672 | } |
ebeecd2b | 673 | case XFS_IOC_ATTRLIST_BY_HANDLE_32: |
ab596ad8 | 674 | return xfs_compat_attrlist_by_handle(filp, arg); |
28750975 | 675 | case XFS_IOC_ATTRMULTI_BY_HANDLE_32: |
ab596ad8 | 676 | return xfs_compat_attrmulti_by_handle(filp, arg); |
710d62aa | 677 | case XFS_IOC_FSSETDM_BY_HANDLE_32: |
ab596ad8 | 678 | return xfs_compat_fssetdm_by_handle(filp, arg); |
1da177e4 | 679 | default: |
d5547f9f | 680 | return -XFS_ERROR(ENOIOCTLCMD); |
1da177e4 | 681 | } |
1da177e4 | 682 | } |