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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2004-2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
62e194ec | 6 | #include <linux/mount.h> |
e89c0413 | 7 | #include <linux/fsmap.h> |
1da177e4 | 8 | #include "xfs.h" |
1da177e4 | 9 | #include "xfs_fs.h" |
5467b34b | 10 | #include "xfs_shared.h" |
a4fbe6ab | 11 | #include "xfs_format.h" |
239880ef DC |
12 | #include "xfs_log_format.h" |
13 | #include "xfs_trans_resv.h" | |
faa63e95 | 14 | #include "xfs_mount.h" |
faa63e95 | 15 | #include "xfs_inode.h" |
2810bd68 | 16 | #include "xfs_iwalk.h" |
faa63e95 | 17 | #include "xfs_itable.h" |
d5547f9f | 18 | #include "xfs_fsops.h" |
471d5910 | 19 | #include "xfs_rtalloc.h" |
fd920008 AH |
20 | #include "xfs_da_format.h" |
21 | #include "xfs_da_btree.h" | |
ebeecd2b | 22 | #include "xfs_attr.h" |
d5547f9f | 23 | #include "xfs_ioctl.h" |
a8272ce0 | 24 | #include "xfs_ioctl32.h" |
0b1b213f | 25 | #include "xfs_trace.h" |
c368ebcd | 26 | #include "xfs_sb.h" |
1da177e4 | 27 | |
526c420c ES |
28 | #define _NATIVE_IOC(cmd, type) \ |
29 | _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) | |
30 | ||
ffae263a | 31 | #ifdef BROKEN_X86_ALIGNMENT |
d5547f9f | 32 | STATIC int |
33 | xfs_compat_ioc_fsgeometry_v1( | |
34 | struct xfs_mount *mp, | |
35 | compat_xfs_fsop_geom_v1_t __user *arg32) | |
547e00c3 | 36 | { |
1b6d968d | 37 | struct xfs_fsop_geom fsgeo; |
547e00c3 | 38 | |
03288b19 | 39 | xfs_fs_geometry(mp, &fsgeo, 3); |
d5547f9f | 40 | /* The 32-bit variant simply has some padding at the end */ |
41 | if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) | |
b474c7ae | 42 | return -EFAULT; |
d5547f9f | 43 | return 0; |
547e00c3 MM |
44 | } |
45 | ||
471d5910 | 46 | STATIC int |
47 | xfs_compat_growfs_data_copyin( | |
48 | struct xfs_growfs_data *in, | |
49 | compat_xfs_growfs_data_t __user *arg32) | |
50 | { | |
51 | if (get_user(in->newblocks, &arg32->newblocks) || | |
52 | get_user(in->imaxpct, &arg32->imaxpct)) | |
b474c7ae | 53 | return -EFAULT; |
471d5910 | 54 | return 0; |
55 | } | |
56 | ||
57 | STATIC int | |
58 | xfs_compat_growfs_rt_copyin( | |
59 | struct xfs_growfs_rt *in, | |
60 | compat_xfs_growfs_rt_t __user *arg32) | |
61 | { | |
62 | if (get_user(in->newblocks, &arg32->newblocks) || | |
63 | get_user(in->extsize, &arg32->extsize)) | |
b474c7ae | 64 | return -EFAULT; |
471d5910 | 65 | return 0; |
66 | } | |
67 | ||
d5547f9f | 68 | STATIC int |
8bfe9d18 | 69 | xfs_fsinumbers_fmt_compat( |
5f19c7fc DW |
70 | struct xfs_ibulk *breq, |
71 | const struct xfs_inumbers *ig) | |
faa63e95 | 72 | { |
5f19c7fc DW |
73 | struct compat_xfs_inogrp __user *p32 = breq->ubuffer; |
74 | struct xfs_inogrp ig1; | |
75 | struct xfs_inogrp *igrp = &ig1; | |
76 | ||
77 | xfs_inumbers_to_inogrp(&ig1, ig); | |
faa63e95 | 78 | |
677717fb DW |
79 | if (put_user(igrp->xi_startino, &p32->xi_startino) || |
80 | put_user(igrp->xi_alloccount, &p32->xi_alloccount) || | |
81 | put_user(igrp->xi_allocmask, &p32->xi_allocmask)) | |
82 | return -EFAULT; | |
83 | ||
84 | return xfs_ibulk_advance(breq, sizeof(struct compat_xfs_inogrp)); | |
faa63e95 MM |
85 | } |
86 | ||
1da177e4 | 87 | #else |
8bfe9d18 | 88 | #define xfs_fsinumbers_fmt_compat xfs_fsinumbers_fmt |
e5d412f1 | 89 | #endif /* BROKEN_X86_ALIGNMENT */ |
faa63e95 | 90 | |
e94fc4a4 | 91 | STATIC int |
92 | xfs_ioctl32_bstime_copyin( | |
93 | xfs_bstime_t *bstime, | |
94 | compat_xfs_bstime_t __user *bstime32) | |
95 | { | |
3b62f000 | 96 | old_time32_t sec32; /* tv_sec differs on 64 vs. 32 */ |
e94fc4a4 | 97 | |
98 | if (get_user(sec32, &bstime32->tv_sec) || | |
99 | get_user(bstime->tv_nsec, &bstime32->tv_nsec)) | |
b474c7ae | 100 | return -EFAULT; |
e94fc4a4 | 101 | bstime->tv_sec = sec32; |
102 | return 0; | |
103 | } | |
104 | ||
6f71fb68 DW |
105 | /* |
106 | * struct xfs_bstat has differing alignment on intel, & bstime_t sizes | |
107 | * everywhere | |
108 | */ | |
e94fc4a4 | 109 | STATIC int |
110 | xfs_ioctl32_bstat_copyin( | |
6f71fb68 DW |
111 | struct xfs_bstat *bstat, |
112 | struct compat_xfs_bstat __user *bstat32) | |
e94fc4a4 | 113 | { |
114 | if (get_user(bstat->bs_ino, &bstat32->bs_ino) || | |
115 | get_user(bstat->bs_mode, &bstat32->bs_mode) || | |
116 | get_user(bstat->bs_nlink, &bstat32->bs_nlink) || | |
117 | get_user(bstat->bs_uid, &bstat32->bs_uid) || | |
118 | get_user(bstat->bs_gid, &bstat32->bs_gid) || | |
119 | get_user(bstat->bs_rdev, &bstat32->bs_rdev) || | |
120 | get_user(bstat->bs_blksize, &bstat32->bs_blksize) || | |
121 | get_user(bstat->bs_size, &bstat32->bs_size) || | |
122 | xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || | |
123 | xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || | |
124 | xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || | |
125 | get_user(bstat->bs_blocks, &bstat32->bs_size) || | |
126 | get_user(bstat->bs_xflags, &bstat32->bs_size) || | |
127 | get_user(bstat->bs_extsize, &bstat32->bs_extsize) || | |
128 | get_user(bstat->bs_extents, &bstat32->bs_extents) || | |
129 | get_user(bstat->bs_gen, &bstat32->bs_gen) || | |
6743099c AM |
130 | get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) || |
131 | get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) || | |
b1d6cc02 | 132 | get_user(bstat->bs_forkoff, &bstat32->bs_forkoff) || |
e94fc4a4 | 133 | get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || |
134 | get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || | |
135 | get_user(bstat->bs_aextents, &bstat32->bs_aextents)) | |
b474c7ae | 136 | return -EFAULT; |
e94fc4a4 | 137 | return 0; |
138 | } | |
139 | ||
faa63e95 MM |
140 | /* XFS_IOC_FSBULKSTAT and friends */ |
141 | ||
d5547f9f | 142 | STATIC int |
143 | xfs_bstime_store_compat( | |
144 | compat_xfs_bstime_t __user *p32, | |
145 | const xfs_bstime_t *p) | |
faa63e95 | 146 | { |
d5547f9f | 147 | __s32 sec32; |
faa63e95 MM |
148 | |
149 | sec32 = p->tv_sec; | |
150 | if (put_user(sec32, &p32->tv_sec) || | |
151 | put_user(p->tv_nsec, &p32->tv_nsec)) | |
b474c7ae | 152 | return -EFAULT; |
faa63e95 MM |
153 | return 0; |
154 | } | |
155 | ||
65fbaf24 | 156 | /* Return 0 on success or positive error (to xfs_bulkstat()) */ |
d5547f9f | 157 | STATIC int |
8bfe9d18 | 158 | xfs_fsbulkstat_one_fmt_compat( |
7035f972 DW |
159 | struct xfs_ibulk *breq, |
160 | const struct xfs_bulkstat *bstat) | |
faa63e95 | 161 | { |
7035f972 DW |
162 | struct compat_xfs_bstat __user *p32 = breq->ubuffer; |
163 | struct xfs_bstat bs1; | |
164 | struct xfs_bstat *buffer = &bs1; | |
165 | ||
166 | xfs_bulkstat_to_bstat(breq->mp, &bs1, bstat); | |
65fbaf24 | 167 | |
168 | if (put_user(buffer->bs_ino, &p32->bs_ino) || | |
169 | put_user(buffer->bs_mode, &p32->bs_mode) || | |
170 | put_user(buffer->bs_nlink, &p32->bs_nlink) || | |
171 | put_user(buffer->bs_uid, &p32->bs_uid) || | |
172 | put_user(buffer->bs_gid, &p32->bs_gid) || | |
173 | put_user(buffer->bs_rdev, &p32->bs_rdev) || | |
174 | put_user(buffer->bs_blksize, &p32->bs_blksize) || | |
175 | put_user(buffer->bs_size, &p32->bs_size) || | |
faa63e95 MM |
176 | xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || |
177 | xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || | |
178 | xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || | |
65fbaf24 | 179 | put_user(buffer->bs_blocks, &p32->bs_blocks) || |
180 | put_user(buffer->bs_xflags, &p32->bs_xflags) || | |
181 | put_user(buffer->bs_extsize, &p32->bs_extsize) || | |
182 | put_user(buffer->bs_extents, &p32->bs_extents) || | |
183 | put_user(buffer->bs_gen, &p32->bs_gen) || | |
184 | put_user(buffer->bs_projid, &p32->bs_projid) || | |
6743099c | 185 | put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) || |
b1d6cc02 | 186 | put_user(buffer->bs_forkoff, &p32->bs_forkoff) || |
65fbaf24 | 187 | put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || |
188 | put_user(buffer->bs_dmstate, &p32->bs_dmstate) || | |
faa63e95 | 189 | put_user(buffer->bs_aextents, &p32->bs_aextents)) |
2451337d | 190 | return -EFAULT; |
faa63e95 | 191 | |
2810bd68 | 192 | return xfs_ibulk_advance(breq, sizeof(struct compat_xfs_bstat)); |
2ee4fa5c | 193 | } |
194 | ||
faa63e95 MM |
195 | /* copied from xfs_ioctl.c */ |
196 | STATIC int | |
8bfe9d18 | 197 | xfs_compat_ioc_fsbulkstat( |
f736d93d | 198 | struct file *file, |
2ee4fa5c | 199 | unsigned int cmd, |
6f71fb68 | 200 | struct compat_xfs_fsop_bulkreq __user *p32) |
1da177e4 | 201 | { |
f736d93d | 202 | struct xfs_mount *mp = XFS_I(file_inode(file))->i_mount; |
1da177e4 | 203 | u32 addr; |
2810bd68 DW |
204 | struct xfs_fsop_bulkreq bulkreq; |
205 | struct xfs_ibulk breq = { | |
206 | .mp = mp, | |
e67fe633 | 207 | .idmap = file_mnt_idmap(file), |
2810bd68 DW |
208 | .ocount = 0, |
209 | }; | |
210 | xfs_ino_t lastino; | |
faa63e95 MM |
211 | int error; |
212 | ||
7ca860e3 NB |
213 | /* |
214 | * Output structure handling functions. Depending on the command, | |
215 | * either the xfs_bstat and xfs_inogrp structures are written out | |
216 | * to userpace memory via bulkreq.ubuffer. Normally the compat | |
217 | * functions and structure size are the correct ones to use ... | |
218 | */ | |
8bfe9d18 DW |
219 | inumbers_fmt_pf inumbers_func = xfs_fsinumbers_fmt_compat; |
220 | bulkstat_one_fmt_pf bs_one_func = xfs_fsbulkstat_one_fmt_compat; | |
7ca860e3 | 221 | |
83a44a4f | 222 | #ifdef CONFIG_X86_X32_ABI |
7ca860e3 NB |
223 | if (in_x32_syscall()) { |
224 | /* | |
225 | * ... but on x32 the input xfs_fsop_bulkreq has pointers | |
226 | * which must be handled in the "compat" (32-bit) way, while | |
227 | * the xfs_bstat and xfs_inogrp structures follow native 64- | |
228 | * bit layout convention. So adjust accordingly, otherwise | |
229 | * the data written out in compat layout will not match what | |
230 | * x32 userspace expects. | |
231 | */ | |
8bfe9d18 DW |
232 | inumbers_func = xfs_fsinumbers_fmt; |
233 | bs_one_func = xfs_fsbulkstat_one_fmt; | |
7ca860e3 NB |
234 | } |
235 | #endif | |
236 | ||
faa63e95 MM |
237 | /* done = 1 if there are more stats to get and if bulkstat */ |
238 | /* should be called again (unused here, but used in dmapi) */ | |
1da177e4 | 239 | |
faa63e95 | 240 | if (!capable(CAP_SYS_ADMIN)) |
b474c7ae | 241 | return -EPERM; |
faa63e95 | 242 | |
75c8c50f | 243 | if (xfs_is_shutdown(mp)) |
b474c7ae | 244 | return -EIO; |
faa63e95 MM |
245 | |
246 | if (get_user(addr, &p32->lastip)) | |
b474c7ae | 247 | return -EFAULT; |
faa63e95 MM |
248 | bulkreq.lastip = compat_ptr(addr); |
249 | if (get_user(bulkreq.icount, &p32->icount) || | |
250 | get_user(addr, &p32->ubuffer)) | |
b474c7ae | 251 | return -EFAULT; |
faa63e95 MM |
252 | bulkreq.ubuffer = compat_ptr(addr); |
253 | if (get_user(addr, &p32->ocount)) | |
b474c7ae | 254 | return -EFAULT; |
faa63e95 | 255 | bulkreq.ocount = compat_ptr(addr); |
1da177e4 | 256 | |
2810bd68 | 257 | if (copy_from_user(&lastino, bulkreq.lastip, sizeof(__s64))) |
b474c7ae | 258 | return -EFAULT; |
faa63e95 | 259 | |
2810bd68 | 260 | if (bulkreq.icount <= 0) |
b474c7ae | 261 | return -EINVAL; |
faa63e95 | 262 | |
cd57e594 | 263 | if (bulkreq.ubuffer == NULL) |
b474c7ae | 264 | return -EINVAL; |
cd57e594 | 265 | |
2810bd68 DW |
266 | breq.ubuffer = bulkreq.ubuffer; |
267 | breq.icount = bulkreq.icount; | |
268 | ||
269 | /* | |
270 | * FSBULKSTAT_SINGLE expects that *lastip contains the inode number | |
271 | * that we want to stat. However, FSINUMBERS and FSBULKSTAT expect | |
272 | * that *lastip contains either zero or the number of the last inode to | |
273 | * be examined by the previous call and return results starting with | |
274 | * the next inode after that. The new bulk request back end functions | |
275 | * take the inode to start with, so we have to compute the startino | |
276 | * parameter from lastino to maintain correct function. lastino == 0 | |
277 | * is a special case because it has traditionally meant "first inode | |
278 | * in filesystem". | |
279 | */ | |
af819d27 | 280 | if (cmd == XFS_IOC_FSINUMBERS_32) { |
677717fb DW |
281 | breq.startino = lastino ? lastino + 1 : 0; |
282 | error = xfs_inumbers(&breq, inumbers_func); | |
283 | lastino = breq.startino - 1; | |
af819d27 | 284 | } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { |
2810bd68 DW |
285 | breq.startino = lastino; |
286 | breq.icount = 1; | |
287 | error = xfs_bulkstat_one(&breq, bs_one_func); | |
288 | lastino = breq.startino; | |
af819d27 | 289 | } else if (cmd == XFS_IOC_FSBULKSTAT_32) { |
2810bd68 DW |
290 | breq.startino = lastino ? lastino + 1 : 0; |
291 | error = xfs_bulkstat(&breq, bs_one_func); | |
292 | lastino = breq.startino - 1; | |
293 | } else { | |
2451337d | 294 | error = -EINVAL; |
2810bd68 | 295 | } |
faa63e95 | 296 | if (error) |
2451337d | 297 | return error; |
faa63e95 | 298 | |
f16fe3ec | 299 | if (bulkreq.lastip != NULL && |
2810bd68 | 300 | copy_to_user(bulkreq.lastip, &lastino, sizeof(xfs_ino_t))) |
f16fe3ec | 301 | return -EFAULT; |
faa63e95 | 302 | |
f16fe3ec | 303 | if (bulkreq.ocount != NULL && |
2810bd68 | 304 | copy_to_user(bulkreq.ocount, &breq.ocount, sizeof(__s32))) |
f16fe3ec | 305 | return -EFAULT; |
faa63e95 MM |
306 | |
307 | return 0; | |
1da177e4 | 308 | } |
faa63e95 | 309 | |
d5547f9f | 310 | STATIC int |
311 | xfs_compat_handlereq_copyin( | |
312 | xfs_fsop_handlereq_t *hreq, | |
313 | compat_xfs_fsop_handlereq_t __user *arg32) | |
1fa503df | 314 | { |
d5547f9f | 315 | compat_xfs_fsop_handlereq_t hreq32; |
316 | ||
317 | if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) | |
b474c7ae | 318 | return -EFAULT; |
d5547f9f | 319 | |
320 | hreq->fd = hreq32.fd; | |
321 | hreq->path = compat_ptr(hreq32.path); | |
322 | hreq->oflags = hreq32.oflags; | |
323 | hreq->ihandle = compat_ptr(hreq32.ihandle); | |
324 | hreq->ihandlen = hreq32.ihandlen; | |
325 | hreq->ohandle = compat_ptr(hreq32.ohandle); | |
326 | hreq->ohandlen = compat_ptr(hreq32.ohandlen); | |
327 | ||
328 | return 0; | |
1fa503df MM |
329 | } |
330 | ||
ab596ad8 CH |
331 | STATIC struct dentry * |
332 | xfs_compat_handlereq_to_dentry( | |
333 | struct file *parfilp, | |
334 | compat_xfs_fsop_handlereq_t *hreq) | |
ebeecd2b | 335 | { |
ab596ad8 CH |
336 | return xfs_handle_to_dentry(parfilp, |
337 | compat_ptr(hreq->ihandle), hreq->ihandlen); | |
ebeecd2b | 338 | } |
339 | ||
340 | STATIC int | |
341 | xfs_compat_attrlist_by_handle( | |
ab596ad8 | 342 | struct file *parfilp, |
53ac39fd | 343 | compat_xfs_fsop_attrlist_handlereq_t __user *p) |
ebeecd2b | 344 | { |
ebeecd2b | 345 | compat_xfs_fsop_attrlist_handlereq_t al_hreq; |
ab596ad8 | 346 | struct dentry *dentry; |
53ac39fd | 347 | int error; |
ebeecd2b | 348 | |
349 | if (!capable(CAP_SYS_ADMIN)) | |
b474c7ae | 350 | return -EPERM; |
53ac39fd | 351 | if (copy_from_user(&al_hreq, p, sizeof(al_hreq))) |
b474c7ae | 352 | return -EFAULT; |
ebeecd2b | 353 | |
ab596ad8 CH |
354 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); |
355 | if (IS_ERR(dentry)) | |
356 | return PTR_ERR(dentry); | |
ebeecd2b | 357 | |
eb241c74 CH |
358 | error = xfs_ioc_attr_list(XFS_I(d_inode(dentry)), |
359 | compat_ptr(al_hreq.buffer), al_hreq.buflen, | |
53ac39fd | 360 | al_hreq.flags, &p->pos); |
ab596ad8 CH |
361 | dput(dentry); |
362 | return error; | |
ebeecd2b | 363 | } |
364 | ||
28750975 | 365 | STATIC int |
366 | xfs_compat_attrmulti_by_handle( | |
ab596ad8 CH |
367 | struct file *parfilp, |
368 | void __user *arg) | |
28750975 | 369 | { |
370 | int error; | |
371 | compat_xfs_attr_multiop_t *ops; | |
372 | compat_xfs_fsop_attrmulti_handlereq_t am_hreq; | |
ab596ad8 | 373 | struct dentry *dentry; |
28750975 | 374 | unsigned int i, size; |
28750975 | 375 | |
376 | if (!capable(CAP_SYS_ADMIN)) | |
b474c7ae | 377 | return -EPERM; |
28750975 | 378 | if (copy_from_user(&am_hreq, arg, |
379 | sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) | |
b474c7ae | 380 | return -EFAULT; |
28750975 | 381 | |
fda168c2 ZW |
382 | /* overflow check */ |
383 | if (am_hreq.opcount >= INT_MAX / sizeof(compat_xfs_attr_multiop_t)) | |
384 | return -E2BIG; | |
385 | ||
ab596ad8 CH |
386 | dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq); |
387 | if (IS_ERR(dentry)) | |
388 | return PTR_ERR(dentry); | |
28750975 | 389 | |
2451337d | 390 | error = -E2BIG; |
28750975 | 391 | size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); |
392 | if (!size || size > 16 * PAGE_SIZE) | |
ab596ad8 | 393 | goto out_dput; |
28750975 | 394 | |
0e639bde LZ |
395 | ops = memdup_user(compat_ptr(am_hreq.ops), size); |
396 | if (IS_ERR(ops)) { | |
4d949021 | 397 | error = PTR_ERR(ops); |
ab596ad8 | 398 | goto out_dput; |
0e639bde | 399 | } |
28750975 | 400 | |
28750975 | 401 | error = 0; |
402 | for (i = 0; i < am_hreq.opcount; i++) { | |
d0ce6439 CH |
403 | ops[i].am_error = xfs_ioc_attrmulti_one(parfilp, |
404 | d_inode(dentry), ops[i].am_opcode, | |
405 | compat_ptr(ops[i].am_attrname), | |
406 | compat_ptr(ops[i].am_attrvalue), | |
407 | &ops[i].am_length, ops[i].am_flags); | |
28750975 | 408 | } |
409 | ||
410 | if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) | |
2451337d | 411 | error = -EFAULT; |
28750975 | 412 | |
28750975 | 413 | kfree(ops); |
ab596ad8 CH |
414 | out_dput: |
415 | dput(dentry); | |
2451337d | 416 | return error; |
28750975 | 417 | } |
418 | ||
4d4be482 CH |
419 | long |
420 | xfs_file_compat_ioctl( | |
421 | struct file *filp, | |
422 | unsigned cmd, | |
423 | unsigned long p) | |
1da177e4 | 424 | { |
496ad9aa | 425 | struct inode *inode = file_inode(filp); |
4d4be482 | 426 | struct xfs_inode *ip = XFS_I(inode); |
4529e6d7 | 427 | void __user *arg = compat_ptr(p); |
4d4be482 CH |
428 | int error; |
429 | ||
cca28fb8 | 430 | trace_xfs_file_compat_ioctl(ip); |
1da177e4 LT |
431 | |
432 | switch (cmd) { | |
a9d25bde | 433 | #if defined(BROKEN_X86_ALIGNMENT) |
547e00c3 | 434 | case XFS_IOC_FSGEOMETRY_V1_32: |
f69e8091 | 435 | return xfs_compat_ioc_fsgeometry_v1(ip->i_mount, arg); |
471d5910 | 436 | case XFS_IOC_FSGROWFSDATA_32: { |
437 | struct xfs_growfs_data in; | |
438 | ||
439 | if (xfs_compat_growfs_data_copyin(&in, arg)) | |
b474c7ae | 440 | return -EFAULT; |
d9457dc0 JK |
441 | error = mnt_want_write_file(filp); |
442 | if (error) | |
443 | return error; | |
f69e8091 | 444 | error = xfs_growfs_data(ip->i_mount, &in); |
d9457dc0 | 445 | mnt_drop_write_file(filp); |
2451337d | 446 | return error; |
471d5910 | 447 | } |
448 | case XFS_IOC_FSGROWFSRT_32: { | |
449 | struct xfs_growfs_rt in; | |
450 | ||
451 | if (xfs_compat_growfs_rt_copyin(&in, arg)) | |
b474c7ae | 452 | return -EFAULT; |
d9457dc0 JK |
453 | error = mnt_want_write_file(filp); |
454 | if (error) | |
455 | return error; | |
f69e8091 | 456 | error = xfs_growfs_rt(ip->i_mount, &in); |
d9457dc0 | 457 | mnt_drop_write_file(filp); |
2451337d | 458 | return error; |
471d5910 | 459 | } |
1da177e4 | 460 | #endif |
e5d412f1 | 461 | /* long changes size, but xfs only copiese out 32 bits */ |
e5d412f1 | 462 | case XFS_IOC_GETVERSION_32: |
463 | cmd = _NATIVE_IOC(cmd, long); | |
4d4be482 | 464 | return xfs_file_ioctl(filp, cmd, p); |
3725867d | 465 | case XFS_IOC_SWAPEXT_32: { |
e5d412f1 | 466 | struct xfs_swapext sxp; |
467 | struct compat_xfs_swapext __user *sxu = arg; | |
468 | ||
469 | /* Bulk copy in up to the sx_stat field, then copy bstat */ | |
470 | if (copy_from_user(&sxp, sxu, | |
471 | offsetof(struct xfs_swapext, sx_stat)) || | |
472 | xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) | |
b474c7ae | 473 | return -EFAULT; |
d9457dc0 JK |
474 | error = mnt_want_write_file(filp); |
475 | if (error) | |
476 | return error; | |
a133d952 | 477 | error = xfs_ioc_swapext(&sxp); |
d9457dc0 | 478 | mnt_drop_write_file(filp); |
2451337d | 479 | return error; |
e5d412f1 | 480 | } |
faa63e95 MM |
481 | case XFS_IOC_FSBULKSTAT_32: |
482 | case XFS_IOC_FSBULKSTAT_SINGLE_32: | |
483 | case XFS_IOC_FSINUMBERS_32: | |
f736d93d | 484 | return xfs_compat_ioc_fsbulkstat(filp, cmd, arg); |
1fa503df MM |
485 | case XFS_IOC_FD_TO_HANDLE_32: |
486 | case XFS_IOC_PATH_TO_HANDLE_32: | |
d5547f9f | 487 | case XFS_IOC_PATH_TO_FSHANDLE_32: { |
488 | struct xfs_fsop_handlereq hreq; | |
489 | ||
490 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
b474c7ae | 491 | return -EFAULT; |
1fa503df | 492 | cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); |
d5547f9f | 493 | return xfs_find_handle(cmd, &hreq); |
494 | } | |
495 | case XFS_IOC_OPEN_BY_HANDLE_32: { | |
496 | struct xfs_fsop_handlereq hreq; | |
497 | ||
498 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
b474c7ae | 499 | return -EFAULT; |
ab596ad8 | 500 | return xfs_open_by_handle(filp, &hreq); |
d5547f9f | 501 | } |
502 | case XFS_IOC_READLINK_BY_HANDLE_32: { | |
503 | struct xfs_fsop_handlereq hreq; | |
504 | ||
505 | if (xfs_compat_handlereq_copyin(&hreq, arg)) | |
b474c7ae | 506 | return -EFAULT; |
ab596ad8 | 507 | return xfs_readlink_by_handle(filp, &hreq); |
d5547f9f | 508 | } |
ebeecd2b | 509 | case XFS_IOC_ATTRLIST_BY_HANDLE_32: |
ab596ad8 | 510 | return xfs_compat_attrlist_by_handle(filp, arg); |
28750975 | 511 | case XFS_IOC_ATTRMULTI_BY_HANDLE_32: |
ab596ad8 | 512 | return xfs_compat_attrmulti_by_handle(filp, arg); |
1da177e4 | 513 | default: |
314e01a6 | 514 | /* try the native version */ |
4529e6d7 | 515 | return xfs_file_ioctl(filp, cmd, (unsigned long)arg); |
1da177e4 | 516 | } |
1da177e4 | 517 | } |