2 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
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
7 * published by the Free Software Foundation.
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.
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
18 #include <linux/compat.h>
19 #include <linux/init.h>
20 #include <linux/ioctl.h>
21 #include <linux/syscalls.h>
22 #include <linux/types.h>
24 #include <asm/uaccess.h>
30 #include "xfs_trans.h"
34 #include "xfs_dmapi.h"
35 #include "xfs_mount.h"
36 #include "xfs_bmap_btree.h"
37 #include "xfs_attr_sf.h"
38 #include "xfs_dir2_sf.h"
39 #include "xfs_vnode.h"
40 #include "xfs_dinode.h"
41 #include "xfs_inode.h"
42 #include "xfs_itable.h"
43 #include "xfs_error.h"
44 #include "xfs_dfrag.h"
45 #include "xfs_vnodeops.h"
46 #include "xfs_fsops.h"
47 #include "xfs_alloc.h"
48 #include "xfs_rtalloc.h"
49 #include "xfs_ioctl.h"
50 #include "xfs_ioctl32.h"
52 #define _NATIVE_IOC(cmd, type) \
53 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
55 #ifdef BROKEN_X86_ALIGNMENT
57 xfs_compat_flock64_copyin(
59 compat_xfs_flock64_t __user *arg32)
61 if (get_user(bf->l_type, &arg32->l_type) ||
62 get_user(bf->l_whence, &arg32->l_whence) ||
63 get_user(bf->l_start, &arg32->l_start) ||
64 get_user(bf->l_len, &arg32->l_len) ||
65 get_user(bf->l_sysid, &arg32->l_sysid) ||
66 get_user(bf->l_pid, &arg32->l_pid) ||
67 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
68 return -XFS_ERROR(EFAULT);
73 xfs_compat_ioc_fsgeometry_v1(
75 compat_xfs_fsop_geom_v1_t __user *arg32)
77 xfs_fsop_geom_t fsgeo;
80 error = xfs_fs_geometry(mp, &fsgeo, 3);
83 /* The 32-bit variant simply has some padding at the end */
84 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
85 return -XFS_ERROR(EFAULT);
90 xfs_compat_growfs_data_copyin(
91 struct xfs_growfs_data *in,
92 compat_xfs_growfs_data_t __user *arg32)
94 if (get_user(in->newblocks, &arg32->newblocks) ||
95 get_user(in->imaxpct, &arg32->imaxpct))
96 return -XFS_ERROR(EFAULT);
101 xfs_compat_growfs_rt_copyin(
102 struct xfs_growfs_rt *in,
103 compat_xfs_growfs_rt_t __user *arg32)
105 if (get_user(in->newblocks, &arg32->newblocks) ||
106 get_user(in->extsize, &arg32->extsize))
107 return -XFS_ERROR(EFAULT);
112 xfs_inumbers_fmt_compat(
113 void __user *ubuffer,
114 const xfs_inogrp_t *buffer,
118 compat_xfs_inogrp_t __user *p32 = ubuffer;
121 for (i = 0; i < count; i++) {
122 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
123 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
124 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
125 return -XFS_ERROR(EFAULT);
127 *written = count * sizeof(*p32);
132 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
136 xfs_ioctl32_bstime_copyin(
137 xfs_bstime_t *bstime,
138 compat_xfs_bstime_t __user *bstime32)
140 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
142 if (get_user(sec32, &bstime32->tv_sec) ||
143 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
144 return -XFS_ERROR(EFAULT);
145 bstime->tv_sec = sec32;
149 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
151 xfs_ioctl32_bstat_copyin(
153 compat_xfs_bstat_t __user *bstat32)
155 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
156 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
157 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
158 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
159 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
160 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
161 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
162 get_user(bstat->bs_size, &bstat32->bs_size) ||
163 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
164 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
165 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
166 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
167 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
168 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
169 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
170 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
171 get_user(bstat->bs_projid, &bstat32->bs_projid) ||
172 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
173 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
174 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
175 return -XFS_ERROR(EFAULT);
179 /* XFS_IOC_FSBULKSTAT and friends */
182 xfs_bstime_store_compat(
183 compat_xfs_bstime_t __user *p32,
184 const xfs_bstime_t *p)
189 if (put_user(sec32, &p32->tv_sec) ||
190 put_user(p->tv_nsec, &p32->tv_nsec))
191 return -XFS_ERROR(EFAULT);
196 xfs_bulkstat_one_fmt_compat(
197 void __user *ubuffer,
198 const xfs_bstat_t *buffer)
200 compat_xfs_bstat_t __user *p32 = ubuffer;
202 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
203 put_user(buffer->bs_mode, &p32->bs_mode) ||
204 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
205 put_user(buffer->bs_uid, &p32->bs_uid) ||
206 put_user(buffer->bs_gid, &p32->bs_gid) ||
207 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
208 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
209 put_user(buffer->bs_size, &p32->bs_size) ||
210 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
211 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
212 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
213 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
214 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
215 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
216 put_user(buffer->bs_extents, &p32->bs_extents) ||
217 put_user(buffer->bs_gen, &p32->bs_gen) ||
218 put_user(buffer->bs_projid, &p32->bs_projid) ||
219 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
220 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
221 put_user(buffer->bs_aextents, &p32->bs_aextents))
222 return -XFS_ERROR(EFAULT);
226 /* copied from xfs_ioctl.c */
228 xfs_ioc_bulkstat_compat(
233 compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg;
235 xfs_fsop_bulkreq_t bulkreq;
236 int count; /* # of records returned */
237 xfs_ino_t inlast; /* last inode number */
241 /* done = 1 if there are more stats to get and if bulkstat */
242 /* should be called again (unused here, but used in dmapi) */
244 if (!capable(CAP_SYS_ADMIN))
245 return -XFS_ERROR(EPERM);
247 if (XFS_FORCED_SHUTDOWN(mp))
248 return -XFS_ERROR(EIO);
250 if (get_user(addr, &p32->lastip))
251 return -XFS_ERROR(EFAULT);
252 bulkreq.lastip = compat_ptr(addr);
253 if (get_user(bulkreq.icount, &p32->icount) ||
254 get_user(addr, &p32->ubuffer))
255 return -XFS_ERROR(EFAULT);
256 bulkreq.ubuffer = compat_ptr(addr);
257 if (get_user(addr, &p32->ocount))
258 return -XFS_ERROR(EFAULT);
259 bulkreq.ocount = compat_ptr(addr);
261 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
262 return -XFS_ERROR(EFAULT);
264 if ((count = bulkreq.icount) <= 0)
265 return -XFS_ERROR(EINVAL);
267 if (bulkreq.ubuffer == NULL)
268 return -XFS_ERROR(EINVAL);
270 if (cmd == XFS_IOC_FSINUMBERS)
271 error = xfs_inumbers(mp, &inlast, &count,
272 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
274 /* declare a var to get a warning in case the type changes */
275 bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat;
276 error = xfs_bulkstat(mp, &inlast, &count,
277 xfs_bulkstat_one, formatter,
278 sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
279 BULKSTAT_FG_QUICK, &done);
284 if (bulkreq.ocount != NULL) {
285 if (copy_to_user(bulkreq.lastip, &inlast,
287 return -XFS_ERROR(EFAULT);
289 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
290 return -XFS_ERROR(EFAULT);
297 xfs_compat_handlereq_copyin(
298 xfs_fsop_handlereq_t *hreq,
299 compat_xfs_fsop_handlereq_t __user *arg32)
301 compat_xfs_fsop_handlereq_t hreq32;
303 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
304 return -XFS_ERROR(EFAULT);
306 hreq->fd = hreq32.fd;
307 hreq->path = compat_ptr(hreq32.path);
308 hreq->oflags = hreq32.oflags;
309 hreq->ihandle = compat_ptr(hreq32.ihandle);
310 hreq->ihandlen = hreq32.ihandlen;
311 hreq->ohandle = compat_ptr(hreq32.ohandle);
312 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
325 struct inode *inode = filp->f_path.dentry->d_inode;
326 xfs_mount_t *mp = ip->i_mount;
329 xfs_itrace_entry(XFS_I(inode));
331 case XFS_IOC_DIOINFO:
332 case XFS_IOC_FSGEOMETRY:
333 case XFS_IOC_FSGETXATTR:
334 case XFS_IOC_FSSETXATTR:
335 case XFS_IOC_FSGETXATTRA:
336 case XFS_IOC_FSSETDM:
337 case XFS_IOC_GETBMAP:
338 case XFS_IOC_GETBMAPA:
339 case XFS_IOC_GETBMAPX:
341 case XFS_IOC_FSSETDM_BY_HANDLE:
342 case XFS_IOC_ATTRLIST_BY_HANDLE:
343 case XFS_IOC_ATTRMULTI_BY_HANDLE:
345 case XFS_IOC_FSCOUNTS:
346 case XFS_IOC_SET_RESBLKS:
347 case XFS_IOC_GET_RESBLKS:
348 case XFS_IOC_FSGROWFSDATA:
349 case XFS_IOC_FSGROWFSLOG:
350 case XFS_IOC_FSGROWFSRT:
353 case XFS_IOC_GOINGDOWN:
354 case XFS_IOC_ERROR_INJECTION:
355 case XFS_IOC_ERROR_CLEARALL:
358 case XFS_IOC_GETXFLAGS_32:
359 case XFS_IOC_SETXFLAGS_32:
360 case XFS_IOC_GETVERSION_32:
361 cmd = _NATIVE_IOC(cmd, long);
363 case XFS_IOC_SWAPEXT: {
364 struct xfs_swapext sxp;
365 struct compat_xfs_swapext __user *sxu = arg;
367 /* Bulk copy in up to the sx_stat field, then grab bstat */
368 if (copy_from_user(&sxp, sxu,
369 offsetof(xfs_swapext_t, sx_stat)) ||
370 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
371 return -XFS_ERROR(EFAULT);
372 error = xfs_swapext(&sxp);
375 #ifdef BROKEN_X86_ALIGNMENT
376 /* xfs_flock_t has wrong u32 vs u64 alignment */
377 case XFS_IOC_ALLOCSP_32:
378 case XFS_IOC_FREESP_32:
379 case XFS_IOC_ALLOCSP64_32:
380 case XFS_IOC_FREESP64_32:
381 case XFS_IOC_RESVSP_32:
382 case XFS_IOC_UNRESVSP_32:
383 case XFS_IOC_RESVSP64_32:
384 case XFS_IOC_UNRESVSP64_32: {
385 struct xfs_flock64 bf;
387 if (xfs_compat_flock64_copyin(&bf, arg))
388 return -XFS_ERROR(EFAULT);
389 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
390 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
392 case XFS_IOC_FSGEOMETRY_V1_32:
393 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
394 case XFS_IOC_FSGROWFSDATA_32: {
395 struct xfs_growfs_data in;
397 if (xfs_compat_growfs_data_copyin(&in, arg))
398 return -XFS_ERROR(EFAULT);
399 error = xfs_growfs_data(mp, &in);
402 case XFS_IOC_FSGROWFSRT_32: {
403 struct xfs_growfs_rt in;
405 if (xfs_compat_growfs_rt_copyin(&in, arg))
406 return -XFS_ERROR(EFAULT);
407 error = xfs_growfs_rt(mp, &in);
410 #else /* These are handled fine if no alignment issues */
411 case XFS_IOC_ALLOCSP:
414 case XFS_IOC_UNRESVSP:
415 case XFS_IOC_ALLOCSP64:
416 case XFS_IOC_FREESP64:
417 case XFS_IOC_RESVSP64:
418 case XFS_IOC_UNRESVSP64:
419 case XFS_IOC_FSGEOMETRY_V1:
422 case XFS_IOC_FSBULKSTAT_32:
423 case XFS_IOC_FSBULKSTAT_SINGLE_32:
424 case XFS_IOC_FSINUMBERS_32:
425 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_bulkreq);
426 return xfs_ioc_bulkstat_compat(XFS_I(inode)->i_mount,
427 cmd, (void __user*)arg);
428 case XFS_IOC_FD_TO_HANDLE_32:
429 case XFS_IOC_PATH_TO_HANDLE_32:
430 case XFS_IOC_PATH_TO_FSHANDLE_32: {
431 struct xfs_fsop_handlereq hreq;
433 if (xfs_compat_handlereq_copyin(&hreq, arg))
434 return -XFS_ERROR(EFAULT);
435 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
436 return xfs_find_handle(cmd, &hreq);
438 case XFS_IOC_OPEN_BY_HANDLE_32: {
439 struct xfs_fsop_handlereq hreq;
441 if (xfs_compat_handlereq_copyin(&hreq, arg))
442 return -XFS_ERROR(EFAULT);
443 return xfs_open_by_handle(mp, &hreq, filp, inode);
445 case XFS_IOC_READLINK_BY_HANDLE_32: {
446 struct xfs_fsop_handlereq hreq;
448 if (xfs_compat_handlereq_copyin(&hreq, arg))
449 return -XFS_ERROR(EFAULT);
450 return xfs_readlink_by_handle(mp, &hreq, inode);
453 return -XFS_ERROR(ENOIOCTLCMD);
456 error = xfs_ioctl(ip, filp, ioflags, cmd, arg);
461 xfs_file_compat_ioctl(
466 struct inode *inode = filp->f_path.dentry->d_inode;
468 return xfs_compat_ioctl(XFS_I(inode), filp, 0, cmd, (void __user *)p);
472 xfs_file_compat_invis_ioctl(
477 struct inode *inode = filp->f_path.dentry->d_inode;
479 return xfs_compat_ioctl(XFS_I(inode), filp, IO_INVIS, cmd,