1 /* SPDX-License-Identifier: LGPL-2.1 */
2 /*
3 * Copyright (c) 1995-2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6 #ifndef __XFS_FS_H__
7 #define __XFS_FS_H__
8
9 /*
10 * SGI's XFS filesystem's major stuff (constants, structures)
11 */
12
13 /*
14 * Direct I/O attribute record used with XFS_IOC_DIOINFO
15 * d_miniosz is the min xfer size, xfer size multiple and file seek offset
16 * alignment.
17 */
18 #ifndef HAVE_DIOATTR
19 struct dioattr {
20 __u32 d_mem; /* data buffer memory alignment */
21 __u32 d_miniosz; /* min xfer size */
22 __u32 d_maxiosz; /* max xfer size */
23 };
24 #endif
25
26 /*
27 * Structure for XFS_IOC_GETBMAP.
28 * On input, fill in bmv_offset and bmv_length of the first structure
29 * to indicate the area of interest in the file, and bmv_entries with
30 * the number of array elements given back. The first structure is
31 * updated on return to give the offset and length for the next call.
32 */
33 #ifndef HAVE_GETBMAP
34 struct getbmap {
35 __s64 bmv_offset; /* file offset of segment in blocks */
36 __s64 bmv_block; /* starting block (64-bit daddr_t) */
37 __s64 bmv_length; /* length of segment, blocks */
38 __s32 bmv_count; /* # of entries in array incl. 1st */
39 __s32 bmv_entries; /* # of entries filled in (output) */
40 };
41 #endif
42
43 /*
44 * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries
45 * are used exactly as in the getbmap structure. The getbmapx structure
46 * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
47 * is only used for the first structure. It contains input flags
48 * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled
49 * in by the XFS_IOC_GETBMAPX command for each returned structure after
50 * the first.
51 */
52 #ifndef HAVE_GETBMAPX
53 struct getbmapx {
54 __s64 bmv_offset; /* file offset of segment in blocks */
55 __s64 bmv_block; /* starting block (64-bit daddr_t) */
56 __s64 bmv_length; /* length of segment, blocks */
57 __s32 bmv_count; /* # of entries in array incl. 1st */
58 __s32 bmv_entries; /* # of entries filled in (output). */
59 __s32 bmv_iflags; /* input flags (1st structure) */
60 __s32 bmv_oflags; /* output flags (after 1st structure)*/
61 __s32 bmv_unused1; /* future use */
62 __s32 bmv_unused2; /* future use */
63 };
64 #endif
65
66 /* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */
67 #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */
68 #define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */
69 #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */
70 #define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */
71 #define BMV_IF_NO_HOLES 0x10 /* Do not return holes */
72 #define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */
73 #define BMV_IF_VALID \
74 (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \
75 BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK)
76
77 /* bmv_oflags values - returned for each non-header segment */
78 #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */
79 #define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */
80 #define BMV_OF_LAST 0x4 /* segment is the last in the file */
81 #define BMV_OF_SHARED 0x8 /* segment shared with another file */
82
83 /* fmr_owner special values for FS_IOC_GETFSMAP */
84 #define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */
85 #define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */
86 #define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */
87 #define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */
88 #define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */
89 #define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */
90 #define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */
91 #define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */
92 #define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */
93 #define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */
94
95 /*
96 * File segment locking set data type for 64 bit access.
97 * Also used for all the RESV/FREE interfaces.
98 */
99 typedef struct xfs_flock64 {
100 __s16 l_type;
101 __s16 l_whence;
102 __s64 l_start;
103 __s64 l_len; /* len == 0 means until end of file */
104 __s32 l_sysid;
105 __u32 l_pid;
106 __s32 l_pad[4]; /* reserve area */
107 } xfs_flock64_t;
108
109 /*
110 * Output for XFS_IOC_FSGEOMETRY_V1
111 */
112 struct xfs_fsop_geom_v1 {
113 __u32 blocksize; /* filesystem (data) block size */
114 __u32 rtextsize; /* realtime extent size */
115 __u32 agblocks; /* fsblocks in an AG */
116 __u32 agcount; /* number of allocation groups */
117 __u32 logblocks; /* fsblocks in the log */
118 __u32 sectsize; /* (data) sector size, bytes */
119 __u32 inodesize; /* inode size in bytes */
120 __u32 imaxpct; /* max allowed inode space(%) */
121 __u64 datablocks; /* fsblocks in data subvolume */
122 __u64 rtblocks; /* fsblocks in realtime subvol */
123 __u64 rtextents; /* rt extents in realtime subvol*/
124 __u64 logstart; /* starting fsblock of the log */
125 unsigned char uuid[16]; /* unique id of the filesystem */
126 __u32 sunit; /* stripe unit, fsblocks */
127 __u32 swidth; /* stripe width, fsblocks */
128 __s32 version; /* structure version */
129 __u32 flags; /* superblock version flags */
130 __u32 logsectsize; /* log sector size, bytes */
131 __u32 rtsectsize; /* realtime sector size, bytes */
132 __u32 dirblocksize; /* directory block size, bytes */
133 };
134
135 /*
136 * Output for XFS_IOC_FSGEOMETRY_V4
137 */
138 struct xfs_fsop_geom_v4 {
139 __u32 blocksize; /* filesystem (data) block size */
140 __u32 rtextsize; /* realtime extent size */
141 __u32 agblocks; /* fsblocks in an AG */
142 __u32 agcount; /* number of allocation groups */
143 __u32 logblocks; /* fsblocks in the log */
144 __u32 sectsize; /* (data) sector size, bytes */
145 __u32 inodesize; /* inode size in bytes */
146 __u32 imaxpct; /* max allowed inode space(%) */
147 __u64 datablocks; /* fsblocks in data subvolume */
148 __u64 rtblocks; /* fsblocks in realtime subvol */
149 __u64 rtextents; /* rt extents in realtime subvol*/
150 __u64 logstart; /* starting fsblock of the log */
151 unsigned char uuid[16]; /* unique id of the filesystem */
152 __u32 sunit; /* stripe unit, fsblocks */
153 __u32 swidth; /* stripe width, fsblocks */
154 __s32 version; /* structure version */
155 __u32 flags; /* superblock version flags */
156 __u32 logsectsize; /* log sector size, bytes */
157 __u32 rtsectsize; /* realtime sector size, bytes */
158 __u32 dirblocksize; /* directory block size, bytes */
159 __u32 logsunit; /* log stripe unit, bytes */
160 };
161
162 /*
163 * Output for XFS_IOC_FSGEOMETRY
164 */
165 struct xfs_fsop_geom {
166 __u32 blocksize; /* filesystem (data) block size */
167 __u32 rtextsize; /* realtime extent size */
168 __u32 agblocks; /* fsblocks in an AG */
169 __u32 agcount; /* number of allocation groups */
170 __u32 logblocks; /* fsblocks in the log */
171 __u32 sectsize; /* (data) sector size, bytes */
172 __u32 inodesize; /* inode size in bytes */
173 __u32 imaxpct; /* max allowed inode space(%) */
174 __u64 datablocks; /* fsblocks in data subvolume */
175 __u64 rtblocks; /* fsblocks in realtime subvol */
176 __u64 rtextents; /* rt extents in realtime subvol*/
177 __u64 logstart; /* starting fsblock of the log */
178 unsigned char uuid[16]; /* unique id of the filesystem */
179 __u32 sunit; /* stripe unit, fsblocks */
180 __u32 swidth; /* stripe width, fsblocks */
181 __s32 version; /* structure version */
182 __u32 flags; /* superblock version flags */
183 __u32 logsectsize; /* log sector size, bytes */
184 __u32 rtsectsize; /* realtime sector size, bytes */
185 __u32 dirblocksize; /* directory block size, bytes */
186 __u32 logsunit; /* log stripe unit, bytes */
187 uint32_t sick; /* o: unhealthy fs & rt metadata */
188 uint32_t checked; /* o: checked fs & rt metadata */
189 __u64 reserved[17]; /* reserved space */
190 };
191
192 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */
193 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */
194 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */
195 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */
196 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */
197 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */
198
199 /* Output for XFS_FS_COUNTS */
200 typedef struct xfs_fsop_counts {
201 __u64 freedata; /* free data section blocks */
202 __u64 freertx; /* free rt extents */
203 __u64 freeino; /* free inodes */
204 __u64 allocino; /* total allocated inodes */
205 } xfs_fsop_counts_t;
206
207 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
208 typedef struct xfs_fsop_resblks {
209 __u64 resblks;
210 __u64 resblks_avail;
211 } xfs_fsop_resblks_t;
212
213 #define XFS_FSOP_GEOM_VERSION 0
214 #define XFS_FSOP_GEOM_VERSION_V5 5
215
216 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */
217 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */
218 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */
219 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */
220 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */
221 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */
222 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */
223 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */
224 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */
225 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */
226 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */
227 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */
228 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */
229 /* -- Do not use -- (1 << 13) SGI parent pointers */
230 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */
231 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */
232 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */
233 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */
234 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */
235 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */
236 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */
237 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */
238 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */
239 #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */
240
241 /*
242 * Minimum and maximum sizes need for growth checks.
243 *
244 * Block counts are in units of filesystem blocks, not basic blocks.
245 */
246 #define XFS_MIN_AG_BLOCKS 64
247 #define XFS_MIN_LOG_BLOCKS 512ULL
248 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL)
249 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL)
250
251 /*
252 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
253 * 16MB or larger than 1TB.
254 */
255 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */
256 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */
257 #define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE)
258 #define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE)
259
260 /* keep the maximum size under 2^31 by a small amount */
261 #define XFS_MAX_LOG_BYTES \
262 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
263
264 /* Used for sanity checks on superblock */
265 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
266 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \
267 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
268
269 /*
270 * Output for XFS_IOC_AG_GEOMETRY
271 */
272 struct xfs_ag_geometry {
273 uint32_t ag_number; /* i/o: AG number */
274 uint32_t ag_length; /* o: length in blocks */
275 uint32_t ag_freeblks; /* o: free space */
276 uint32_t ag_icount; /* o: inodes allocated */
277 uint32_t ag_ifree; /* o: inodes free */
278 uint32_t ag_sick; /* o: sick things in ag */
279 uint32_t ag_checked; /* o: checked metadata in ag */
280 uint32_t ag_flags; /* i/o: flags for this ag */
281 uint64_t ag_reserved[12];/* o: zero */
282 };
283 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */
284 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */
285 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */
286 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */
287 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */
288 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */
289 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */
290 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */
291 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */
292 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */
293
294 /*
295 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
296 */
297 typedef struct xfs_growfs_data {
298 __u64 newblocks; /* new data subvol size, fsblocks */
299 __u32 imaxpct; /* new inode space percentage limit */
300 } xfs_growfs_data_t;
301
302 typedef struct xfs_growfs_log {
303 __u32 newblocks; /* new log size, fsblocks */
304 __u32 isint; /* 1 if new log is internal */
305 } xfs_growfs_log_t;
306
307 typedef struct xfs_growfs_rt {
308 __u64 newblocks; /* new realtime size, fsblocks */
309 __u32 extsize; /* new realtime extent size, fsblocks */
310 } xfs_growfs_rt_t;
311
312
313 /*
314 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
315 */
316 typedef struct xfs_bstime {
317 __kernel_long_t tv_sec; /* seconds */
318 __s32 tv_nsec; /* and nanoseconds */
319 } xfs_bstime_t;
320
321 struct xfs_bstat {
322 __u64 bs_ino; /* inode number */
323 __u16 bs_mode; /* type and mode */
324 __u16 bs_nlink; /* number of links */
325 __u32 bs_uid; /* user id */
326 __u32 bs_gid; /* group id */
327 __u32 bs_rdev; /* device value */
328 __s32 bs_blksize; /* block size */
329 __s64 bs_size; /* file size */
330 xfs_bstime_t bs_atime; /* access time */
331 xfs_bstime_t bs_mtime; /* modify time */
332 xfs_bstime_t bs_ctime; /* inode change time */
333 int64_t bs_blocks; /* number of blocks */
334 __u32 bs_xflags; /* extended flags */
335 __s32 bs_extsize; /* extent size */
336 __s32 bs_extents; /* number of extents */
337 __u32 bs_gen; /* generation count */
338 __u16 bs_projid_lo; /* lower part of project id */
339 #define bs_projid bs_projid_lo /* (previously just bs_projid) */
340 __u16 bs_forkoff; /* inode fork offset in bytes */
341 __u16 bs_projid_hi; /* higher part of project id */
342 uint16_t bs_sick; /* sick inode metadata */
343 uint16_t bs_checked; /* checked inode metadata */
344 unsigned char bs_pad[2]; /* pad space, unused */
345 __u32 bs_cowextsize; /* cow extent size */
346 __u32 bs_dmevmask; /* DMIG event mask */
347 __u16 bs_dmstate; /* DMIG state info */
348 __u16 bs_aextents; /* attribute number of extents */
349 };
350
351 /* New bulkstat structure that reports v5 features and fixes padding issues */
352 struct xfs_bulkstat {
353 uint64_t bs_ino; /* inode number */
354 uint64_t bs_size; /* file size */
355
356 uint64_t bs_blocks; /* number of blocks */
357 uint64_t bs_xflags; /* extended flags */
358
359 int64_t bs_atime; /* access time, seconds */
360 int64_t bs_mtime; /* modify time, seconds */
361
362 int64_t bs_ctime; /* inode change time, seconds */
363 int64_t bs_btime; /* creation time, seconds */
364
365 uint32_t bs_gen; /* generation count */
366 uint32_t bs_uid; /* user id */
367 uint32_t bs_gid; /* group id */
368 uint32_t bs_projectid; /* project id */
369
370 uint32_t bs_atime_nsec; /* access time, nanoseconds */
371 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */
372 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */
373 uint32_t bs_btime_nsec; /* creation time, nanoseconds */
374
375 uint32_t bs_blksize; /* block size */
376 uint32_t bs_rdev; /* device value */
377 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */
378 uint32_t bs_extsize_blks; /* extent size hint, blocks */
379
380 uint32_t bs_nlink; /* number of links */
381 uint32_t bs_extents; /* 32-bit data fork extent counter */
382 uint32_t bs_aextents; /* attribute number of extents */
383 uint16_t bs_version; /* structure version */
384 uint16_t bs_forkoff; /* inode fork offset in bytes */
385
386 uint16_t bs_sick; /* sick inode metadata */
387 uint16_t bs_checked; /* checked inode metadata */
388 uint16_t bs_mode; /* type and mode */
389 uint16_t bs_pad2; /* zeroed */
390 uint64_t bs_extents64; /* 64-bit data fork extent counter */
391
392 uint64_t bs_pad[6]; /* zeroed */
393 };
394
395 #define XFS_BULKSTAT_VERSION_V1 (1)
396 #define XFS_BULKSTAT_VERSION_V5 (5)
397
398 /* bs_sick flags */
399 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */
400 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */
401 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */
402 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */
403 #define XFS_BS_SICK_DIR (1 << 4) /* directory */
404 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */
405 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */
406 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */
407
408 /*
409 * Project quota id helpers (previously projid was 16bit only
410 * and using two 16bit values to hold new 32bit projid was chosen
411 * to retain compatibility with "old" filesystems).
412 */
413 static inline uint32_t
bstat_get_projid(const struct xfs_bstat * bs)414 bstat_get_projid(const struct xfs_bstat *bs)
415 {
416 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
417 }
418
419 /*
420 * The user-level BulkStat Request interface structure.
421 */
422 struct xfs_fsop_bulkreq {
423 __u64 __user *lastip; /* last inode # pointer */
424 __s32 icount; /* count of entries in buffer */
425 void __user *ubuffer;/* user buffer for inode desc. */
426 __s32 __user *ocount; /* output count pointer */
427 };
428
429 /*
430 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
431 */
432 struct xfs_inogrp {
433 __u64 xi_startino; /* starting inode number */
434 __s32 xi_alloccount; /* # bits set in allocmask */
435 __u64 xi_allocmask; /* mask of allocated inodes */
436 };
437
438 /* New inumbers structure that reports v5 features and fixes padding issues */
439 struct xfs_inumbers {
440 uint64_t xi_startino; /* starting inode number */
441 uint64_t xi_allocmask; /* mask of allocated inodes */
442 uint8_t xi_alloccount; /* # bits set in allocmask */
443 uint8_t xi_version; /* version */
444 uint8_t xi_padding[6]; /* zero */
445 };
446
447 #define XFS_INUMBERS_VERSION_V1 (1)
448 #define XFS_INUMBERS_VERSION_V5 (5)
449
450 /* Header for bulk inode requests. */
451 struct xfs_bulk_ireq {
452 uint64_t ino; /* I/O: start with this inode */
453 uint32_t flags; /* I/O: operation flags */
454 uint32_t icount; /* I: count of entries in buffer */
455 uint32_t ocount; /* O: count of entries filled out */
456 uint32_t agno; /* I: see comment for IREQ_AGNO */
457 uint64_t reserved[5]; /* must be zero */
458 };
459
460 /*
461 * Only return results from the specified @agno. If @ino is zero, start
462 * with the first inode of @agno.
463 */
464 #define XFS_BULK_IREQ_AGNO (1U << 0)
465
466 /*
467 * Return bulkstat information for a single inode, where @ino value is a
468 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_*
469 * values below. Not compatible with XFS_BULK_IREQ_AGNO.
470 */
471 #define XFS_BULK_IREQ_SPECIAL (1U << 1)
472
473 /*
474 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign
475 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use
476 * xfs_bulkstat->bs_extents for returning data fork extent count and set
477 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and
478 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than
479 * XFS_MAX_EXTCNT_DATA_FORK_OLD.
480 */
481 #define XFS_BULK_IREQ_NREXT64 (1U << 2)
482
483 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \
484 XFS_BULK_IREQ_SPECIAL | \
485 XFS_BULK_IREQ_NREXT64)
486
487 /* Operate on the root directory inode. */
488 #define XFS_BULK_IREQ_SPECIAL_ROOT (1)
489
490 /*
491 * ioctl structures for v5 bulkstat and inumbers requests
492 */
493 struct xfs_bulkstat_req {
494 struct xfs_bulk_ireq hdr;
495 struct xfs_bulkstat bulkstat[];
496 };
497 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \
498 (nr) * sizeof(struct xfs_bulkstat))
499
500 struct xfs_inumbers_req {
501 struct xfs_bulk_ireq hdr;
502 struct xfs_inumbers inumbers[];
503 };
504 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \
505 (nr) * sizeof(struct xfs_inumbers))
506
507 /*
508 * Error injection.
509 */
510 typedef struct xfs_error_injection {
511 __s32 fd;
512 __s32 errtag;
513 } xfs_error_injection_t;
514
515
516 /*
517 * Speculative preallocation trimming.
518 */
519 #define XFS_EOFBLOCKS_VERSION 1
520 struct xfs_fs_eofblocks {
521 __u32 eof_version;
522 __u32 eof_flags;
523 uid_t eof_uid;
524 gid_t eof_gid;
525 prid_t eof_prid;
526 __u32 pad32;
527 __u64 eof_min_file_size;
528 __u64 pad64[12];
529 };
530
531 /* eof_flags values */
532 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */
533 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */
534 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */
535 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */
536 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */
537 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm;
538 * kernel only, not included in
539 * valid mask */
540 #define XFS_EOF_FLAGS_VALID \
541 (XFS_EOF_FLAGS_SYNC | \
542 XFS_EOF_FLAGS_UID | \
543 XFS_EOF_FLAGS_GID | \
544 XFS_EOF_FLAGS_PRID | \
545 XFS_EOF_FLAGS_MINFILESIZE)
546
547
548 /*
549 * The user-level Handle Request interface structure.
550 */
551 typedef struct xfs_fsop_handlereq {
552 __u32 fd; /* fd for FD_TO_HANDLE */
553 void __user *path; /* user pathname */
554 __u32 oflags; /* open flags */
555 void __user *ihandle;/* user supplied handle */
556 __u32 ihandlen; /* user supplied length */
557 void __user *ohandle;/* user buffer for handle */
558 __u32 __user *ohandlen;/* user buffer length */
559 } xfs_fsop_handlereq_t;
560
561 /*
562 * Compound structures for passing args through Handle Request interfaces
563 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle
564 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE
565 */
566
567 /*
568 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface.
569 *
570 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix.
571 */
572 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */
573 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */
574 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */
575 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */
576
577 typedef struct xfs_attrlist_cursor {
578 __u32 opaque[4];
579 } xfs_attrlist_cursor_t;
580
581 /*
582 * Define how lists of attribute names are returned to userspace from the
583 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the
584 * beginning of the returned buffer, and a each entry in al_offset contains the
585 * relative offset of an xfs_attrlist_ent containing the actual entry.
586 *
587 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and
588 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr.
589 */
590 struct xfs_attrlist {
591 __s32 al_count; /* number of entries in attrlist */
592 __s32 al_more; /* T/F: more attrs (do call again) */
593 __s32 al_offset[1]; /* byte offsets of attrs [var-sized] */
594 };
595
596 struct xfs_attrlist_ent { /* data from attr_list() */
597 __u32 a_valuelen; /* number bytes in value of attr */
598 char a_name[1]; /* attr name (NULL terminated) */
599 };
600
601 typedef struct xfs_fsop_attrlist_handlereq {
602 struct xfs_fsop_handlereq hreq; /* handle interface structure */
603 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */
604 __u32 flags; /* which namespace to use */
605 __u32 buflen; /* length of buffer supplied */
606 void __user *buffer; /* returned names */
607 } xfs_fsop_attrlist_handlereq_t;
608
609 typedef struct xfs_attr_multiop {
610 __u32 am_opcode;
611 #define ATTR_OP_GET 1 /* return the indicated attr's value */
612 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */
613 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */
614 __s32 am_error;
615 void __user *am_attrname;
616 void __user *am_attrvalue;
617 __u32 am_length;
618 __u32 am_flags; /* XFS_IOC_ATTR_* */
619 } xfs_attr_multiop_t;
620
621 typedef struct xfs_fsop_attrmulti_handlereq {
622 struct xfs_fsop_handlereq hreq; /* handle interface structure */
623 __u32 opcount;/* count of following multiop */
624 struct xfs_attr_multiop __user *ops; /* attr_multi data */
625 } xfs_fsop_attrmulti_handlereq_t;
626
627 /*
628 * per machine unique filesystem identifier types.
629 */
630 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
631
632 typedef struct xfs_fid {
633 __u16 fid_len; /* length of remainder */
634 __u16 fid_pad;
635 __u32 fid_gen; /* generation number */
636 __u64 fid_ino; /* 64 bits inode number */
637 } xfs_fid_t;
638
639 typedef struct xfs_handle {
640 union {
641 __s64 align; /* force alignment of ha_fid */
642 xfs_fsid_t _ha_fsid; /* unique file system identifier */
643 } ha_u;
644 xfs_fid_t ha_fid; /* file system specific file ID */
645 } xfs_handle_t;
646 #define ha_fsid ha_u._ha_fsid
647
648 /*
649 * Structure passed to XFS_IOC_SWAPEXT
650 */
651 typedef struct xfs_swapext
652 {
653 int64_t sx_version; /* version */
654 #define XFS_SX_VERSION 0
655 int64_t sx_fdtarget; /* fd of target file */
656 int64_t sx_fdtmp; /* fd of tmp file */
657 xfs_off_t sx_offset; /* offset into file */
658 xfs_off_t sx_length; /* leng from offset */
659 char sx_pad[16]; /* pad space, unused */
660 struct xfs_bstat sx_stat; /* stat of target b4 copy */
661 } xfs_swapext_t;
662
663 /*
664 * Flags for going down operation
665 */
666 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */
667 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
668 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
669
670 /* metadata scrubbing */
671 struct xfs_scrub_metadata {
672 __u32 sm_type; /* What to check? */
673 __u32 sm_flags; /* flags; see below. */
674 __u64 sm_ino; /* inode number. */
675 __u32 sm_gen; /* inode generation. */
676 __u32 sm_agno; /* ag number. */
677 __u64 sm_reserved[5]; /* pad to 64 bytes */
678 };
679
680 /*
681 * Metadata types and flags for scrub operation.
682 */
683
684 /* Scrub subcommands. */
685 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */
686 #define XFS_SCRUB_TYPE_SB 1 /* superblock */
687 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */
688 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */
689 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */
690 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */
691 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */
692 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */
693 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */
694 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */
695 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */
696 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */
697 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */
698 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */
699 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */
700 #define XFS_SCRUB_TYPE_DIR 15 /* directory */
701 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */
702 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */
703 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */
704 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */
705 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */
706 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */
707 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */
708 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */
709 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */
710
711 /* Number of scrub subcommands. */
712 #define XFS_SCRUB_TYPE_NR 25
713
714 /* i: Repair this metadata. */
715 #define XFS_SCRUB_IFLAG_REPAIR (1u << 0)
716
717 /* o: Metadata object needs repair. */
718 #define XFS_SCRUB_OFLAG_CORRUPT (1u << 1)
719
720 /*
721 * o: Metadata object could be optimized. It's not corrupt, but
722 * we could improve on it somehow.
723 */
724 #define XFS_SCRUB_OFLAG_PREEN (1u << 2)
725
726 /* o: Cross-referencing failed. */
727 #define XFS_SCRUB_OFLAG_XFAIL (1u << 3)
728
729 /* o: Metadata object disagrees with cross-referenced metadata. */
730 #define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4)
731
732 /* o: Scan was not complete. */
733 #define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5)
734
735 /* o: Metadata object looked funny but isn't corrupt. */
736 #define XFS_SCRUB_OFLAG_WARNING (1u << 6)
737
738 /*
739 * o: IFLAG_REPAIR was set but metadata object did not need fixing or
740 * optimization and has therefore not been altered.
741 */
742 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7)
743
744 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR)
745 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \
746 XFS_SCRUB_OFLAG_PREEN | \
747 XFS_SCRUB_OFLAG_XFAIL | \
748 XFS_SCRUB_OFLAG_XCORRUPT | \
749 XFS_SCRUB_OFLAG_INCOMPLETE | \
750 XFS_SCRUB_OFLAG_WARNING | \
751 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
752 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
753
754 /*
755 * ioctl limits
756 */
757 #ifdef XATTR_LIST_MAX
758 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
759 #else
760 # define XFS_XATTR_LIST_MAX 65536
761 #endif
762
763
764 /*
765 * ioctl commands that are used by Linux filesystems
766 */
767 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS
768 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS
769 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION
770
771 /*
772 * ioctl commands that replace IRIX fcntl()'s
773 * For 'documentation' purposed more than anything else,
774 * the "cmd #" field reflects the IRIX fcntl number.
775 */
776 /* XFS_IOC_ALLOCSP ------- deprecated 10 */
777 /* XFS_IOC_FREESP -------- deprecated 11 */
778 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
779 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
780 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
781 /* XFS_IOC_ALLOCSP64 ----- deprecated 36 */
782 /* XFS_IOC_FREESP64 ------ deprecated 37 */
783 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
784 /* XFS_IOC_FSSETDM ------- deprecated 39 */
785 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64)
786 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64)
787 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64)
788 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64)
789 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap)
790 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr)
791 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */
792 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
793 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
794 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64)
795 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks)
796 /* XFS_IOC_GETFSMAP ------ hoisted 59 */
797 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata)
798 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry)
799
800 /*
801 * ioctl commands that replace IRIX syssgi()'s
802 */
803 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1)
804 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq)
805 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq)
806 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq)
807 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq)
808 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq)
809 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq)
810 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq)
811 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq)
812 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext)
813 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data)
814 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log)
815 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt)
816 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts)
817 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks)
818 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks)
819 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
820 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
821 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
822
823 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */
824 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */
825
826 /* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */
827 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
828 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
829 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4)
830 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t)
831 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom)
832 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req)
833 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req)
834 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */
835
836
837 #ifndef HAVE_BBMACROS
838 /*
839 * Block I/O parameterization. A basic block (BB) is the lowest size of
840 * filesystem allocation, and must equal 512. Length units given to bio
841 * routines are in BB's.
842 */
843 #define BBSHIFT 9
844 #define BBSIZE (1<<BBSHIFT)
845 #define BBMASK (BBSIZE-1)
846 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
847 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT)
848 #define BBTOB(bbs) ((bbs) << BBSHIFT)
849 #endif
850
851 #endif /* __XFS_FS_H__ */
852