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"
40 #include "xfs_vnode.h"
41 #include "xfs_dinode.h"
42 #include "xfs_inode.h"
43 #include "xfs_itable.h"
44 #include "xfs_error.h"
45 #include "xfs_dfrag.h"
46 #include "xfs_vnodeops.h"
48 #define _NATIVE_IOC(cmd, type) \
49 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
51 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
52 #define BROKEN_X86_ALIGNMENT
53 #define _PACKED __attribute__((packed))
54 /* on ia32 l_start is on a 32-bit boundary */
55 typedef struct xfs_flock64_32
{
58 __s64 l_start
__attribute__((packed
));
59 /* len == 0 means until end of file */
60 __s64 l_len
__attribute__((packed
));
63 __s32 l_pad
[4]; /* reserve area */
66 #define XFS_IOC_ALLOCSP_32 _IOW ('X', 10, struct xfs_flock64_32)
67 #define XFS_IOC_FREESP_32 _IOW ('X', 11, struct xfs_flock64_32)
68 #define XFS_IOC_ALLOCSP64_32 _IOW ('X', 36, struct xfs_flock64_32)
69 #define XFS_IOC_FREESP64_32 _IOW ('X', 37, struct xfs_flock64_32)
70 #define XFS_IOC_RESVSP_32 _IOW ('X', 40, struct xfs_flock64_32)
71 #define XFS_IOC_UNRESVSP_32 _IOW ('X', 41, struct xfs_flock64_32)
72 #define XFS_IOC_RESVSP64_32 _IOW ('X', 42, struct xfs_flock64_32)
73 #define XFS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct xfs_flock64_32)
75 /* just account for different alignment */
80 xfs_flock64_32_t __user
*p32
= (void __user
*)arg
;
81 xfs_flock64_t __user
*p
= compat_alloc_user_space(sizeof(*p
));
83 if (copy_in_user(&p
->l_type
, &p32
->l_type
, sizeof(s16
)) ||
84 copy_in_user(&p
->l_whence
, &p32
->l_whence
, sizeof(s16
)) ||
85 copy_in_user(&p
->l_start
, &p32
->l_start
, sizeof(s64
)) ||
86 copy_in_user(&p
->l_len
, &p32
->l_len
, sizeof(s64
)) ||
87 copy_in_user(&p
->l_sysid
, &p32
->l_sysid
, sizeof(s32
)) ||
88 copy_in_user(&p
->l_pid
, &p32
->l_pid
, sizeof(u32
)) ||
89 copy_in_user(&p
->l_pad
, &p32
->l_pad
, 4*sizeof(u32
)))
92 return (unsigned long)p
;
95 typedef struct compat_xfs_fsop_geom_v1
{
96 __u32 blocksize
; /* filesystem (data) block size */
97 __u32 rtextsize
; /* realtime extent size */
98 __u32 agblocks
; /* fsblocks in an AG */
99 __u32 agcount
; /* number of allocation groups */
100 __u32 logblocks
; /* fsblocks in the log */
101 __u32 sectsize
; /* (data) sector size, bytes */
102 __u32 inodesize
; /* inode size in bytes */
103 __u32 imaxpct
; /* max allowed inode space(%) */
104 __u64 datablocks
; /* fsblocks in data subvolume */
105 __u64 rtblocks
; /* fsblocks in realtime subvol */
106 __u64 rtextents
; /* rt extents in realtime subvol*/
107 __u64 logstart
; /* starting fsblock of the log */
108 unsigned char uuid
[16]; /* unique id of the filesystem */
109 __u32 sunit
; /* stripe unit, fsblocks */
110 __u32 swidth
; /* stripe width, fsblocks */
111 __s32 version
; /* structure version */
112 __u32 flags
; /* superblock version flags */
113 __u32 logsectsize
; /* log sector size, bytes */
114 __u32 rtsectsize
; /* realtime sector size, bytes */
115 __u32 dirblocksize
; /* directory block size, bytes */
116 } __attribute__((packed
)) compat_xfs_fsop_geom_v1_t
;
118 #define XFS_IOC_FSGEOMETRY_V1_32 \
119 _IOR ('X', 100, struct compat_xfs_fsop_geom_v1)
121 STATIC
unsigned long xfs_ioctl32_geom_v1(unsigned long arg
)
123 compat_xfs_fsop_geom_v1_t __user
*p32
= (void __user
*)arg
;
124 xfs_fsop_geom_v1_t __user
*p
= compat_alloc_user_space(sizeof(*p
));
126 if (copy_in_user(p
, p32
, sizeof(*p32
)))
128 return (unsigned long)p
;
131 typedef struct compat_xfs_inogrp
{
132 __u64 xi_startino
; /* starting inode number */
133 __s32 xi_alloccount
; /* # bits set in allocmask */
134 __u64 xi_allocmask
; /* mask of allocated inodes */
135 } __attribute__((packed
)) compat_xfs_inogrp_t
;
137 STATIC
int xfs_inumbers_fmt_compat(
138 void __user
*ubuffer
,
139 const xfs_inogrp_t
*buffer
,
143 compat_xfs_inogrp_t __user
*p32
= ubuffer
;
146 for (i
= 0; i
< count
; i
++) {
147 if (put_user(buffer
[i
].xi_startino
, &p32
[i
].xi_startino
) ||
148 put_user(buffer
[i
].xi_alloccount
, &p32
[i
].xi_alloccount
) ||
149 put_user(buffer
[i
].xi_allocmask
, &p32
[i
].xi_allocmask
))
152 *written
= count
* sizeof(*p32
);
158 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
163 /* XFS_IOC_FSBULKSTAT and friends */
165 typedef struct compat_xfs_bstime
{
166 __s32 tv_sec
; /* seconds */
167 __s32 tv_nsec
; /* and nanoseconds */
168 } compat_xfs_bstime_t
;
170 STATIC
int xfs_bstime_store_compat(
171 compat_xfs_bstime_t __user
*p32
,
172 const xfs_bstime_t
*p
)
177 if (put_user(sec32
, &p32
->tv_sec
) ||
178 put_user(p
->tv_nsec
, &p32
->tv_nsec
))
183 typedef struct compat_xfs_bstat
{
184 __u64 bs_ino
; /* inode number */
185 __u16 bs_mode
; /* type and mode */
186 __u16 bs_nlink
; /* number of links */
187 __u32 bs_uid
; /* user id */
188 __u32 bs_gid
; /* group id */
189 __u32 bs_rdev
; /* device value */
190 __s32 bs_blksize
; /* block size */
191 __s64 bs_size
; /* file size */
192 compat_xfs_bstime_t bs_atime
; /* access time */
193 compat_xfs_bstime_t bs_mtime
; /* modify time */
194 compat_xfs_bstime_t bs_ctime
; /* inode change time */
195 int64_t bs_blocks
; /* number of blocks */
196 __u32 bs_xflags
; /* extended flags */
197 __s32 bs_extsize
; /* extent size */
198 __s32 bs_extents
; /* number of extents */
199 __u32 bs_gen
; /* generation count */
200 __u16 bs_projid
; /* project id */
201 unsigned char bs_pad
[14]; /* pad space, unused */
202 __u32 bs_dmevmask
; /* DMIG event mask */
203 __u16 bs_dmstate
; /* DMIG state info */
204 __u16 bs_aextents
; /* attribute number of extents */
205 } _PACKED compat_xfs_bstat_t
;
207 STATIC
int xfs_bulkstat_one_fmt_compat(
208 void __user
*ubuffer
,
209 const xfs_bstat_t
*buffer
)
211 compat_xfs_bstat_t __user
*p32
= ubuffer
;
213 if (put_user(buffer
->bs_ino
, &p32
->bs_ino
) ||
214 put_user(buffer
->bs_mode
, &p32
->bs_mode
) ||
215 put_user(buffer
->bs_nlink
, &p32
->bs_nlink
) ||
216 put_user(buffer
->bs_uid
, &p32
->bs_uid
) ||
217 put_user(buffer
->bs_gid
, &p32
->bs_gid
) ||
218 put_user(buffer
->bs_rdev
, &p32
->bs_rdev
) ||
219 put_user(buffer
->bs_blksize
, &p32
->bs_blksize
) ||
220 put_user(buffer
->bs_size
, &p32
->bs_size
) ||
221 xfs_bstime_store_compat(&p32
->bs_atime
, &buffer
->bs_atime
) ||
222 xfs_bstime_store_compat(&p32
->bs_mtime
, &buffer
->bs_mtime
) ||
223 xfs_bstime_store_compat(&p32
->bs_ctime
, &buffer
->bs_ctime
) ||
224 put_user(buffer
->bs_blocks
, &p32
->bs_blocks
) ||
225 put_user(buffer
->bs_xflags
, &p32
->bs_xflags
) ||
226 put_user(buffer
->bs_extsize
, &p32
->bs_extsize
) ||
227 put_user(buffer
->bs_extents
, &p32
->bs_extents
) ||
228 put_user(buffer
->bs_gen
, &p32
->bs_gen
) ||
229 put_user(buffer
->bs_projid
, &p32
->bs_projid
) ||
230 put_user(buffer
->bs_dmevmask
, &p32
->bs_dmevmask
) ||
231 put_user(buffer
->bs_dmstate
, &p32
->bs_dmstate
) ||
232 put_user(buffer
->bs_aextents
, &p32
->bs_aextents
))
239 typedef struct compat_xfs_fsop_bulkreq
{
240 compat_uptr_t lastip
; /* last inode # pointer */
241 __s32 icount
; /* count of entries in buffer */
242 compat_uptr_t ubuffer
; /* user buffer for inode desc. */
243 compat_uptr_t ocount
; /* output count pointer */
244 } compat_xfs_fsop_bulkreq_t
;
246 #define XFS_IOC_FSBULKSTAT_32 \
247 _IOWR('X', 101, struct compat_xfs_fsop_bulkreq)
248 #define XFS_IOC_FSBULKSTAT_SINGLE_32 \
249 _IOWR('X', 102, struct compat_xfs_fsop_bulkreq)
250 #define XFS_IOC_FSINUMBERS_32 \
251 _IOWR('X', 103, struct compat_xfs_fsop_bulkreq)
253 /* copied from xfs_ioctl.c */
255 xfs_ioc_bulkstat_compat(
260 compat_xfs_fsop_bulkreq_t __user
*p32
= (void __user
*)arg
;
262 xfs_fsop_bulkreq_t bulkreq
;
263 int count
; /* # of records returned */
264 xfs_ino_t inlast
; /* last inode number */
268 /* done = 1 if there are more stats to get and if bulkstat */
269 /* should be called again (unused here, but used in dmapi) */
271 if (!capable(CAP_SYS_ADMIN
))
274 if (XFS_FORCED_SHUTDOWN(mp
))
275 return -XFS_ERROR(EIO
);
277 if (get_user(addr
, &p32
->lastip
))
279 bulkreq
.lastip
= compat_ptr(addr
);
280 if (get_user(bulkreq
.icount
, &p32
->icount
) ||
281 get_user(addr
, &p32
->ubuffer
))
283 bulkreq
.ubuffer
= compat_ptr(addr
);
284 if (get_user(addr
, &p32
->ocount
))
286 bulkreq
.ocount
= compat_ptr(addr
);
288 if (copy_from_user(&inlast
, bulkreq
.lastip
, sizeof(__s64
)))
289 return -XFS_ERROR(EFAULT
);
291 if ((count
= bulkreq
.icount
) <= 0)
292 return -XFS_ERROR(EINVAL
);
294 if (cmd
== XFS_IOC_FSINUMBERS
)
295 error
= xfs_inumbers(mp
, &inlast
, &count
,
296 bulkreq
.ubuffer
, xfs_inumbers_fmt_compat
);
298 /* declare a var to get a warning in case the type changes */
299 bulkstat_one_fmt_pf formatter
= xfs_bulkstat_one_fmt_compat
;
300 error
= xfs_bulkstat(mp
, &inlast
, &count
,
301 xfs_bulkstat_one
, formatter
,
302 sizeof(compat_xfs_bstat_t
), bulkreq
.ubuffer
,
303 BULKSTAT_FG_QUICK
, &done
);
308 if (bulkreq
.ocount
!= NULL
) {
309 if (copy_to_user(bulkreq
.lastip
, &inlast
,
311 return -XFS_ERROR(EFAULT
);
313 if (copy_to_user(bulkreq
.ocount
, &count
, sizeof(count
)))
314 return -XFS_ERROR(EFAULT
);
322 typedef struct compat_xfs_fsop_handlereq
{
323 __u32 fd
; /* fd for FD_TO_HANDLE */
324 compat_uptr_t path
; /* user pathname */
325 __u32 oflags
; /* open flags */
326 compat_uptr_t ihandle
; /* user supplied handle */
327 __u32 ihandlen
; /* user supplied length */
328 compat_uptr_t ohandle
; /* user buffer for handle */
329 compat_uptr_t ohandlen
; /* user buffer length */
330 } compat_xfs_fsop_handlereq_t
;
332 #define XFS_IOC_PATH_TO_FSHANDLE_32 \
333 _IOWR('X', 104, struct compat_xfs_fsop_handlereq)
334 #define XFS_IOC_PATH_TO_HANDLE_32 \
335 _IOWR('X', 105, struct compat_xfs_fsop_handlereq)
336 #define XFS_IOC_FD_TO_HANDLE_32 \
337 _IOWR('X', 106, struct compat_xfs_fsop_handlereq)
338 #define XFS_IOC_OPEN_BY_HANDLE_32 \
339 _IOWR('X', 107, struct compat_xfs_fsop_handlereq)
340 #define XFS_IOC_READLINK_BY_HANDLE_32 \
341 _IOWR('X', 108, struct compat_xfs_fsop_handlereq)
343 STATIC
unsigned long xfs_ioctl32_fshandle(unsigned long arg
)
345 compat_xfs_fsop_handlereq_t __user
*p32
= (void __user
*)arg
;
346 xfs_fsop_handlereq_t __user
*p
= compat_alloc_user_space(sizeof(*p
));
349 if (copy_in_user(&p
->fd
, &p32
->fd
, sizeof(__u32
)) ||
350 get_user(addr
, &p32
->path
) ||
351 put_user(compat_ptr(addr
), &p
->path
) ||
352 copy_in_user(&p
->oflags
, &p32
->oflags
, sizeof(__u32
)) ||
353 get_user(addr
, &p32
->ihandle
) ||
354 put_user(compat_ptr(addr
), &p
->ihandle
) ||
355 copy_in_user(&p
->ihandlen
, &p32
->ihandlen
, sizeof(__u32
)) ||
356 get_user(addr
, &p32
->ohandle
) ||
357 put_user(compat_ptr(addr
), &p
->ohandle
) ||
358 get_user(addr
, &p32
->ohandlen
) ||
359 put_user(compat_ptr(addr
), &p
->ohandlen
))
362 return (unsigned long)p
;
373 struct inode
*inode
= file
->f_path
.dentry
->d_inode
;
377 case XFS_IOC_DIOINFO
:
378 case XFS_IOC_FSGEOMETRY
:
379 case XFS_IOC_GETVERSION
:
380 case XFS_IOC_GETXFLAGS
:
381 case XFS_IOC_SETXFLAGS
:
382 case XFS_IOC_FSGETXATTR
:
383 case XFS_IOC_FSSETXATTR
:
384 case XFS_IOC_FSGETXATTRA
:
385 case XFS_IOC_FSSETDM
:
386 case XFS_IOC_GETBMAP
:
387 case XFS_IOC_GETBMAPA
:
388 case XFS_IOC_GETBMAPX
:
390 case XFS_IOC_FSSETDM_BY_HANDLE:
391 case XFS_IOC_ATTRLIST_BY_HANDLE:
392 case XFS_IOC_ATTRMULTI_BY_HANDLE:
394 case XFS_IOC_FSCOUNTS
:
395 case XFS_IOC_SET_RESBLKS
:
396 case XFS_IOC_GET_RESBLKS
:
397 case XFS_IOC_FSGROWFSDATA
:
398 case XFS_IOC_FSGROWFSLOG
:
399 case XFS_IOC_FSGROWFSRT
:
402 case XFS_IOC_GOINGDOWN
:
403 case XFS_IOC_ERROR_INJECTION
:
404 case XFS_IOC_ERROR_CLEARALL
:
407 #ifdef BROKEN_X86_ALIGNMENT
408 /* xfs_flock_t has wrong u32 vs u64 alignment */
409 case XFS_IOC_ALLOCSP_32
:
410 case XFS_IOC_FREESP_32
:
411 case XFS_IOC_ALLOCSP64_32
:
412 case XFS_IOC_FREESP64_32
:
413 case XFS_IOC_RESVSP_32
:
414 case XFS_IOC_UNRESVSP_32
:
415 case XFS_IOC_RESVSP64_32
:
416 case XFS_IOC_UNRESVSP64_32
:
417 arg
= xfs_ioctl32_flock(arg
);
418 cmd
= _NATIVE_IOC(cmd
, struct xfs_flock64
);
420 case XFS_IOC_FSGEOMETRY_V1_32
:
421 arg
= xfs_ioctl32_geom_v1(arg
);
422 cmd
= _NATIVE_IOC(cmd
, struct xfs_fsop_geom_v1
);
425 #else /* These are handled fine if no alignment issues */
426 case XFS_IOC_ALLOCSP
:
429 case XFS_IOC_UNRESVSP
:
430 case XFS_IOC_ALLOCSP64
:
431 case XFS_IOC_FREESP64
:
432 case XFS_IOC_RESVSP64
:
433 case XFS_IOC_UNRESVSP64
:
434 case XFS_IOC_FSGEOMETRY_V1
:
437 /* xfs_bstat_t still has wrong u32 vs u64 alignment */
438 case XFS_IOC_SWAPEXT
:
442 case XFS_IOC_FSBULKSTAT_32
:
443 case XFS_IOC_FSBULKSTAT_SINGLE_32
:
444 case XFS_IOC_FSINUMBERS_32
:
445 cmd
= _NATIVE_IOC(cmd
, struct xfs_fsop_bulkreq
);
446 return xfs_ioc_bulkstat_compat(XFS_I(inode
)->i_mount
,
447 cmd
, (void __user
*)arg
);
448 case XFS_IOC_FD_TO_HANDLE_32
:
449 case XFS_IOC_PATH_TO_HANDLE_32
:
450 case XFS_IOC_PATH_TO_FSHANDLE_32
:
451 case XFS_IOC_OPEN_BY_HANDLE_32
:
452 case XFS_IOC_READLINK_BY_HANDLE_32
:
453 arg
= xfs_ioctl32_fshandle(arg
);
454 cmd
= _NATIVE_IOC(cmd
, struct xfs_fsop_handlereq
);
460 error
= xfs_ioctl(XFS_I(inode
), file
, mode
, cmd
, (void __user
*)arg
);
461 xfs_iflags_set(XFS_I(inode
), XFS_IMODIFIED
);
467 xfs_file_compat_ioctl(
472 return xfs_compat_ioctl(0, file
, cmd
, arg
);
476 xfs_file_compat_invis_ioctl(
481 return xfs_compat_ioctl(IO_INVIS
, file
, cmd
, arg
);