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WIP FPC-III support
[linux/fpc-iii.git] / fs / xfs / libxfs / xfs_fs.h
blob2a2e3cfd94f0ccaacf9ea871a0c428e83640b2b1
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 /* Do not generate DMAPI read event */
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 * Structure for XFS_IOC_FSSETDM.
97 * For use by backup and restore programs to set the XFS on-disk inode
98 * fields di_dmevmask and di_dmstate. These must be set to exactly and
99 * only values previously obtained via xfs_bulkstat! (Specifically the
100 * struct xfs_bstat fields bs_dmevmask and bs_dmstate.)
101 */
102 #ifndef HAVE_FSDMIDATA
103 struct fsdmidata {
104 __u32 fsd_dmevmask; /* corresponds to di_dmevmask */
105 __u16 fsd_padding;
106 __u16 fsd_dmstate; /* corresponds to di_dmstate */
107 };
108 #endif
109
110 /*
111 * File segment locking set data type for 64 bit access.
112 * Also used for all the RESV/FREE interfaces.
113 */
114 typedef struct xfs_flock64 {
115 __s16 l_type;
116 __s16 l_whence;
117 __s64 l_start;
118 __s64 l_len; /* len == 0 means until end of file */
119 __s32 l_sysid;
120 __u32 l_pid;
121 __s32 l_pad[4]; /* reserve area */
122 } xfs_flock64_t;
123
124 /*
125 * Output for XFS_IOC_FSGEOMETRY_V1
126 */
127 struct xfs_fsop_geom_v1 {
128 __u32 blocksize; /* filesystem (data) block size */
129 __u32 rtextsize; /* realtime extent size */
130 __u32 agblocks; /* fsblocks in an AG */
131 __u32 agcount; /* number of allocation groups */
132 __u32 logblocks; /* fsblocks in the log */
133 __u32 sectsize; /* (data) sector size, bytes */
134 __u32 inodesize; /* inode size in bytes */
135 __u32 imaxpct; /* max allowed inode space(%) */
136 __u64 datablocks; /* fsblocks in data subvolume */
137 __u64 rtblocks; /* fsblocks in realtime subvol */
138 __u64 rtextents; /* rt extents in realtime subvol*/
139 __u64 logstart; /* starting fsblock of the log */
140 unsigned char uuid[16]; /* unique id of the filesystem */
141 __u32 sunit; /* stripe unit, fsblocks */
142 __u32 swidth; /* stripe width, fsblocks */
143 __s32 version; /* structure version */
144 __u32 flags; /* superblock version flags */
145 __u32 logsectsize; /* log sector size, bytes */
146 __u32 rtsectsize; /* realtime sector size, bytes */
147 __u32 dirblocksize; /* directory block size, bytes */
148 };
149
150 /*
151 * Output for XFS_IOC_FSGEOMETRY_V4
152 */
153 struct xfs_fsop_geom_v4 {
154 __u32 blocksize; /* filesystem (data) block size */
155 __u32 rtextsize; /* realtime extent size */
156 __u32 agblocks; /* fsblocks in an AG */
157 __u32 agcount; /* number of allocation groups */
158 __u32 logblocks; /* fsblocks in the log */
159 __u32 sectsize; /* (data) sector size, bytes */
160 __u32 inodesize; /* inode size in bytes */
161 __u32 imaxpct; /* max allowed inode space(%) */
162 __u64 datablocks; /* fsblocks in data subvolume */
163 __u64 rtblocks; /* fsblocks in realtime subvol */
164 __u64 rtextents; /* rt extents in realtime subvol*/
165 __u64 logstart; /* starting fsblock of the log */
166 unsigned char uuid[16]; /* unique id of the filesystem */
167 __u32 sunit; /* stripe unit, fsblocks */
168 __u32 swidth; /* stripe width, fsblocks */
169 __s32 version; /* structure version */
170 __u32 flags; /* superblock version flags */
171 __u32 logsectsize; /* log sector size, bytes */
172 __u32 rtsectsize; /* realtime sector size, bytes */
173 __u32 dirblocksize; /* directory block size, bytes */
174 __u32 logsunit; /* log stripe unit, bytes */
175 };
176
177 /*
178 * Output for XFS_IOC_FSGEOMETRY
179 */
180 struct xfs_fsop_geom {
181 __u32 blocksize; /* filesystem (data) block size */
182 __u32 rtextsize; /* realtime extent size */
183 __u32 agblocks; /* fsblocks in an AG */
184 __u32 agcount; /* number of allocation groups */
185 __u32 logblocks; /* fsblocks in the log */
186 __u32 sectsize; /* (data) sector size, bytes */
187 __u32 inodesize; /* inode size in bytes */
188 __u32 imaxpct; /* max allowed inode space(%) */
189 __u64 datablocks; /* fsblocks in data subvolume */
190 __u64 rtblocks; /* fsblocks in realtime subvol */
191 __u64 rtextents; /* rt extents in realtime subvol*/
192 __u64 logstart; /* starting fsblock of the log */
193 unsigned char uuid[16]; /* unique id of the filesystem */
194 __u32 sunit; /* stripe unit, fsblocks */
195 __u32 swidth; /* stripe width, fsblocks */
196 __s32 version; /* structure version */
197 __u32 flags; /* superblock version flags */
198 __u32 logsectsize; /* log sector size, bytes */
199 __u32 rtsectsize; /* realtime sector size, bytes */
200 __u32 dirblocksize; /* directory block size, bytes */
201 __u32 logsunit; /* log stripe unit, bytes */
202 uint32_t sick; /* o: unhealthy fs & rt metadata */
203 uint32_t checked; /* o: checked fs & rt metadata */
204 __u64 reserved[17]; /* reserved space */
205 };
206
207 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */
208 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */
209 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */
210 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */
211 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */
212 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */
213
214 /* Output for XFS_FS_COUNTS */
215 typedef struct xfs_fsop_counts {
216 __u64 freedata; /* free data section blocks */
217 __u64 freertx; /* free rt extents */
218 __u64 freeino; /* free inodes */
219 __u64 allocino; /* total allocated inodes */
220 } xfs_fsop_counts_t;
221
222 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
223 typedef struct xfs_fsop_resblks {
224 __u64 resblks;
225 __u64 resblks_avail;
226 } xfs_fsop_resblks_t;
227
228 #define XFS_FSOP_GEOM_VERSION 0
229 #define XFS_FSOP_GEOM_VERSION_V5 5
230
231 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */
232 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */
233 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */
234 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */
235 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */
236 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */
237 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */
238 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */
239 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */
240 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */
241 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */
242 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */
243 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */
244 /* -- Do not use -- (1 << 13) SGI parent pointers */
245 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */
246 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */
247 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */
248 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */
249 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */
250 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */
251 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */
252 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */
253
254 /*
255 * Minimum and maximum sizes need for growth checks.
256 *
257 * Block counts are in units of filesystem blocks, not basic blocks.
258 */
259 #define XFS_MIN_AG_BLOCKS 64
260 #define XFS_MIN_LOG_BLOCKS 512ULL
261 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL)
262 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL)
263
264 /*
265 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
266 * 16MB or larger than 1TB.
267 */
268 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */
269 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */
270
271 /* keep the maximum size under 2^31 by a small amount */
272 #define XFS_MAX_LOG_BYTES \
273 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
274
275 /* Used for sanity checks on superblock */
276 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
277 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \
278 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
279
280 /*
281 * Output for XFS_IOC_AG_GEOMETRY
282 */
283 struct xfs_ag_geometry {
284 uint32_t ag_number; /* i/o: AG number */
285 uint32_t ag_length; /* o: length in blocks */
286 uint32_t ag_freeblks; /* o: free space */
287 uint32_t ag_icount; /* o: inodes allocated */
288 uint32_t ag_ifree; /* o: inodes free */
289 uint32_t ag_sick; /* o: sick things in ag */
290 uint32_t ag_checked; /* o: checked metadata in ag */
291 uint32_t ag_flags; /* i/o: flags for this ag */
292 uint64_t ag_reserved[12];/* o: zero */
293 };
294 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */
295 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */
296 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */
297 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */
298 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */
299 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */
300 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */
301 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */
302 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */
303 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */
304
305 /*
306 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
307 */
308 typedef struct xfs_growfs_data {
309 __u64 newblocks; /* new data subvol size, fsblocks */
310 __u32 imaxpct; /* new inode space percentage limit */
311 } xfs_growfs_data_t;
312
313 typedef struct xfs_growfs_log {
314 __u32 newblocks; /* new log size, fsblocks */
315 __u32 isint; /* 1 if new log is internal */
316 } xfs_growfs_log_t;
317
318 typedef struct xfs_growfs_rt {
319 __u64 newblocks; /* new realtime size, fsblocks */
320 __u32 extsize; /* new realtime extent size, fsblocks */
321 } xfs_growfs_rt_t;
322
323
324 /*
325 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
326 */
327 typedef struct xfs_bstime {
328 __kernel_long_t tv_sec; /* seconds */
329 __s32 tv_nsec; /* and nanoseconds */
330 } xfs_bstime_t;
331
332 struct xfs_bstat {
333 __u64 bs_ino; /* inode number */
334 __u16 bs_mode; /* type and mode */
335 __u16 bs_nlink; /* number of links */
336 __u32 bs_uid; /* user id */
337 __u32 bs_gid; /* group id */
338 __u32 bs_rdev; /* device value */
339 __s32 bs_blksize; /* block size */
340 __s64 bs_size; /* file size */
341 xfs_bstime_t bs_atime; /* access time */
342 xfs_bstime_t bs_mtime; /* modify time */
343 xfs_bstime_t bs_ctime; /* inode change time */
344 int64_t bs_blocks; /* number of blocks */
345 __u32 bs_xflags; /* extended flags */
346 __s32 bs_extsize; /* extent size */
347 __s32 bs_extents; /* number of extents */
348 __u32 bs_gen; /* generation count */
349 __u16 bs_projid_lo; /* lower part of project id */
350 #define bs_projid bs_projid_lo /* (previously just bs_projid) */
351 __u16 bs_forkoff; /* inode fork offset in bytes */
352 __u16 bs_projid_hi; /* higher part of project id */
353 uint16_t bs_sick; /* sick inode metadata */
354 uint16_t bs_checked; /* checked inode metadata */
355 unsigned char bs_pad[2]; /* pad space, unused */
356 __u32 bs_cowextsize; /* cow extent size */
357 __u32 bs_dmevmask; /* DMIG event mask */
358 __u16 bs_dmstate; /* DMIG state info */
359 __u16 bs_aextents; /* attribute number of extents */
360 };
361
362 /* New bulkstat structure that reports v5 features and fixes padding issues */
363 struct xfs_bulkstat {
364 uint64_t bs_ino; /* inode number */
365 uint64_t bs_size; /* file size */
366
367 uint64_t bs_blocks; /* number of blocks */
368 uint64_t bs_xflags; /* extended flags */
369
370 int64_t bs_atime; /* access time, seconds */
371 int64_t bs_mtime; /* modify time, seconds */
372
373 int64_t bs_ctime; /* inode change time, seconds */
374 int64_t bs_btime; /* creation time, seconds */
375
376 uint32_t bs_gen; /* generation count */
377 uint32_t bs_uid; /* user id */
378 uint32_t bs_gid; /* group id */
379 uint32_t bs_projectid; /* project id */
380
381 uint32_t bs_atime_nsec; /* access time, nanoseconds */
382 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */
383 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */
384 uint32_t bs_btime_nsec; /* creation time, nanoseconds */
385
386 uint32_t bs_blksize; /* block size */
387 uint32_t bs_rdev; /* device value */
388 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */
389 uint32_t bs_extsize_blks; /* extent size hint, blocks */
390
391 uint32_t bs_nlink; /* number of links */
392 uint32_t bs_extents; /* number of extents */
393 uint32_t bs_aextents; /* attribute number of extents */
394 uint16_t bs_version; /* structure version */
395 uint16_t bs_forkoff; /* inode fork offset in bytes */
396
397 uint16_t bs_sick; /* sick inode metadata */
398 uint16_t bs_checked; /* checked inode metadata */
399 uint16_t bs_mode; /* type and mode */
400 uint16_t bs_pad2; /* zeroed */
401
402 uint64_t bs_pad[7]; /* zeroed */
403 };
404
405 #define XFS_BULKSTAT_VERSION_V1 (1)
406 #define XFS_BULKSTAT_VERSION_V5 (5)
407
408 /* bs_sick flags */
409 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */
410 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */
411 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */
412 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */
413 #define XFS_BS_SICK_DIR (1 << 4) /* directory */
414 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */
415 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */
416 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */
417
418 /*
419 * Project quota id helpers (previously projid was 16bit only
420 * and using two 16bit values to hold new 32bit projid was chosen
421 * to retain compatibility with "old" filesystems).
422 */
423 static inline uint32_t
424 bstat_get_projid(const struct xfs_bstat *bs)
425 {
426 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
427 }
428
429 /*
430 * The user-level BulkStat Request interface structure.
431 */
432 struct xfs_fsop_bulkreq {
433 __u64 __user *lastip; /* last inode # pointer */
434 __s32 icount; /* count of entries in buffer */
435 void __user *ubuffer;/* user buffer for inode desc. */
436 __s32 __user *ocount; /* output count pointer */
437 };
438
439 /*
440 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
441 */
442 struct xfs_inogrp {
443 __u64 xi_startino; /* starting inode number */
444 __s32 xi_alloccount; /* # bits set in allocmask */
445 __u64 xi_allocmask; /* mask of allocated inodes */
446 };
447
448 /* New inumbers structure that reports v5 features and fixes padding issues */
449 struct xfs_inumbers {
450 uint64_t xi_startino; /* starting inode number */
451 uint64_t xi_allocmask; /* mask of allocated inodes */
452 uint8_t xi_alloccount; /* # bits set in allocmask */
453 uint8_t xi_version; /* version */
454 uint8_t xi_padding[6]; /* zero */
455 };
456
457 #define XFS_INUMBERS_VERSION_V1 (1)
458 #define XFS_INUMBERS_VERSION_V5 (5)
459
460 /* Header for bulk inode requests. */
461 struct xfs_bulk_ireq {
462 uint64_t ino; /* I/O: start with this inode */
463 uint32_t flags; /* I/O: operation flags */
464 uint32_t icount; /* I: count of entries in buffer */
465 uint32_t ocount; /* O: count of entries filled out */
466 uint32_t agno; /* I: see comment for IREQ_AGNO */
467 uint64_t reserved[5]; /* must be zero */
468 };
469
470 /*
471 * Only return results from the specified @agno. If @ino is zero, start
472 * with the first inode of @agno.
473 */
474 #define XFS_BULK_IREQ_AGNO (1 << 0)
475
476 /*
477 * Return bulkstat information for a single inode, where @ino value is a
478 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_*
479 * values below. Not compatible with XFS_BULK_IREQ_AGNO.
480 */
481 #define XFS_BULK_IREQ_SPECIAL (1 << 1)
482
483 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \
484 XFS_BULK_IREQ_SPECIAL)
485
486 /* Operate on the root directory inode. */
487 #define XFS_BULK_IREQ_SPECIAL_ROOT (1)
488
489 /*
490 * ioctl structures for v5 bulkstat and inumbers requests
491 */
492 struct xfs_bulkstat_req {
493 struct xfs_bulk_ireq hdr;
494 struct xfs_bulkstat bulkstat[];
495 };
496 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \
497 (nr) * sizeof(struct xfs_bulkstat))
498
499 struct xfs_inumbers_req {
500 struct xfs_bulk_ireq hdr;
501 struct xfs_inumbers inumbers[];
502 };
503 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \
504 (nr) * sizeof(struct xfs_inumbers))
505
506 /*
507 * Error injection.
508 */
509 typedef struct xfs_error_injection {
510 __s32 fd;
511 __s32 errtag;
512 } xfs_error_injection_t;
513
514
515 /*
516 * Speculative preallocation trimming.
517 */
518 #define XFS_EOFBLOCKS_VERSION 1
519 struct xfs_fs_eofblocks {
520 __u32 eof_version;
521 __u32 eof_flags;
522 uid_t eof_uid;
523 gid_t eof_gid;
524 prid_t eof_prid;
525 __u32 pad32;
526 __u64 eof_min_file_size;
527 __u64 pad64[12];
528 };
529
530 /* eof_flags values */
531 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */
532 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */
533 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */
534 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */
535 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */
536 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm;
537 * kernel only, not included in
538 * valid mask */
539 #define XFS_EOF_FLAGS_VALID \
540 (XFS_EOF_FLAGS_SYNC | \
541 XFS_EOF_FLAGS_UID | \
542 XFS_EOF_FLAGS_GID | \
543 XFS_EOF_FLAGS_PRID | \
544 XFS_EOF_FLAGS_MINFILESIZE)
545
546
547 /*
548 * The user-level Handle Request interface structure.
549 */
550 typedef struct xfs_fsop_handlereq {
551 __u32 fd; /* fd for FD_TO_HANDLE */
552 void __user *path; /* user pathname */
553 __u32 oflags; /* open flags */
554 void __user *ihandle;/* user supplied handle */
555 __u32 ihandlen; /* user supplied length */
556 void __user *ohandle;/* user buffer for handle */
557 __u32 __user *ohandlen;/* user buffer length */
558 } xfs_fsop_handlereq_t;
559
560 /*
561 * Compound structures for passing args through Handle Request interfaces
562 * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
563 * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
564 * XFS_IOC_ATTRMULTI_BY_HANDLE
565 */
566
567 typedef struct xfs_fsop_setdm_handlereq {
568 struct xfs_fsop_handlereq hreq; /* handle information */
569 struct fsdmidata __user *data; /* DMAPI data */
570 } xfs_fsop_setdm_handlereq_t;
571
572 /*
573 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface.
574 *
575 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix.
576 */
577 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */
578 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */
579 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */
580 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */
581
582 typedef struct xfs_attrlist_cursor {
583 __u32 opaque[4];
584 } xfs_attrlist_cursor_t;
585
586 /*
587 * Define how lists of attribute names are returned to userspace from the
588 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the
589 * beginning of the returned buffer, and a each entry in al_offset contains the
590 * relative offset of an xfs_attrlist_ent containing the actual entry.
591 *
592 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and
593 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr.
594 */
595 struct xfs_attrlist {
596 __s32 al_count; /* number of entries in attrlist */
597 __s32 al_more; /* T/F: more attrs (do call again) */
598 __s32 al_offset[1]; /* byte offsets of attrs [var-sized] */
599 };
600
601 struct xfs_attrlist_ent { /* data from attr_list() */
602 __u32 a_valuelen; /* number bytes in value of attr */
603 char a_name[1]; /* attr name (NULL terminated) */
604 };
605
606 typedef struct xfs_fsop_attrlist_handlereq {
607 struct xfs_fsop_handlereq hreq; /* handle interface structure */
608 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */
609 __u32 flags; /* which namespace to use */
610 __u32 buflen; /* length of buffer supplied */
611 void __user *buffer; /* returned names */
612 } xfs_fsop_attrlist_handlereq_t;
613
614 typedef struct xfs_attr_multiop {
615 __u32 am_opcode;
616 #define ATTR_OP_GET 1 /* return the indicated attr's value */
617 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */
618 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */
619 __s32 am_error;
620 void __user *am_attrname;
621 void __user *am_attrvalue;
622 __u32 am_length;
623 __u32 am_flags; /* XFS_IOC_ATTR_* */
624 } xfs_attr_multiop_t;
625
626 typedef struct xfs_fsop_attrmulti_handlereq {
627 struct xfs_fsop_handlereq hreq; /* handle interface structure */
628 __u32 opcount;/* count of following multiop */
629 struct xfs_attr_multiop __user *ops; /* attr_multi data */
630 } xfs_fsop_attrmulti_handlereq_t;
631
632 /*
633 * per machine unique filesystem identifier types.
634 */
635 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
636
637 typedef struct xfs_fid {
638 __u16 fid_len; /* length of remainder */
639 __u16 fid_pad;
640 __u32 fid_gen; /* generation number */
641 __u64 fid_ino; /* 64 bits inode number */
642 } xfs_fid_t;
643
644 typedef struct xfs_handle {
645 union {
646 __s64 align; /* force alignment of ha_fid */
647 xfs_fsid_t _ha_fsid; /* unique file system identifier */
648 } ha_u;
649 xfs_fid_t ha_fid; /* file system specific file ID */
650 } xfs_handle_t;
651 #define ha_fsid ha_u._ha_fsid
652
653 /*
654 * Structure passed to XFS_IOC_SWAPEXT
655 */
656 typedef struct xfs_swapext
657 {
658 int64_t sx_version; /* version */
659 #define XFS_SX_VERSION 0
660 int64_t sx_fdtarget; /* fd of target file */
661 int64_t sx_fdtmp; /* fd of tmp file */
662 xfs_off_t sx_offset; /* offset into file */
663 xfs_off_t sx_length; /* leng from offset */
664 char sx_pad[16]; /* pad space, unused */
665 struct xfs_bstat sx_stat; /* stat of target b4 copy */
666 } xfs_swapext_t;
667
668 /*
669 * Flags for going down operation
670 */
671 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */
672 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
673 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
674
675 /* metadata scrubbing */
676 struct xfs_scrub_metadata {
677 __u32 sm_type; /* What to check? */
678 __u32 sm_flags; /* flags; see below. */
679 __u64 sm_ino; /* inode number. */
680 __u32 sm_gen; /* inode generation. */
681 __u32 sm_agno; /* ag number. */
682 __u64 sm_reserved[5]; /* pad to 64 bytes */
683 };
684
685 /*
686 * Metadata types and flags for scrub operation.
687 */
688
689 /* Scrub subcommands. */
690 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */
691 #define XFS_SCRUB_TYPE_SB 1 /* superblock */
692 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */
693 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */
694 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */
695 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */
696 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */
697 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */
698 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */
699 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */
700 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */
701 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */
702 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */
703 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */
704 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */
705 #define XFS_SCRUB_TYPE_DIR 15 /* directory */
706 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */
707 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */
708 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */
709 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */
710 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */
711 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */
712 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */
713 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */
714 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */
715
716 /* Number of scrub subcommands. */
717 #define XFS_SCRUB_TYPE_NR 25
718
719 /* i: Repair this metadata. */
720 #define XFS_SCRUB_IFLAG_REPAIR (1 << 0)
721
722 /* o: Metadata object needs repair. */
723 #define XFS_SCRUB_OFLAG_CORRUPT (1 << 1)
724
725 /*
726 * o: Metadata object could be optimized. It's not corrupt, but
727 * we could improve on it somehow.
728 */
729 #define XFS_SCRUB_OFLAG_PREEN (1 << 2)
730
731 /* o: Cross-referencing failed. */
732 #define XFS_SCRUB_OFLAG_XFAIL (1 << 3)
733
734 /* o: Metadata object disagrees with cross-referenced metadata. */
735 #define XFS_SCRUB_OFLAG_XCORRUPT (1 << 4)
736
737 /* o: Scan was not complete. */
738 #define XFS_SCRUB_OFLAG_INCOMPLETE (1 << 5)
739
740 /* o: Metadata object looked funny but isn't corrupt. */
741 #define XFS_SCRUB_OFLAG_WARNING (1 << 6)
742
743 /*
744 * o: IFLAG_REPAIR was set but metadata object did not need fixing or
745 * optimization and has therefore not been altered.
746 */
747 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1 << 7)
748
749 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR)
750 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \
751 XFS_SCRUB_OFLAG_PREEN | \
752 XFS_SCRUB_OFLAG_XFAIL | \
753 XFS_SCRUB_OFLAG_XCORRUPT | \
754 XFS_SCRUB_OFLAG_INCOMPLETE | \
755 XFS_SCRUB_OFLAG_WARNING | \
756 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
757 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
758
759 /*
760 * ioctl limits
761 */
762 #ifdef XATTR_LIST_MAX
763 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
764 #else
765 # define XFS_XATTR_LIST_MAX 65536
766 #endif
767
768
769 /*
770 * ioctl commands that are used by Linux filesystems
771 */
772 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS
773 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS
774 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION
775
776 /*
777 * ioctl commands that replace IRIX fcntl()'s
778 * For 'documentation' purposed more than anything else,
779 * the "cmd #" field reflects the IRIX fcntl number.
780 */
781 #define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64)
782 #define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64)
783 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
784 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
785 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
786 #define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64)
787 #define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64)
788 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
789 #define XFS_IOC_FSSETDM _IOW ('X', 39, struct fsdmidata)
790 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64)
791 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64)
792 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64)
793 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64)
794 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap)
795 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr)
796 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */
797 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
798 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
799 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64)
800 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks)
801 /* XFS_IOC_GETFSMAP ------ hoisted 59 */
802 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata)
803 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry)
804
805 /*
806 * ioctl commands that replace IRIX syssgi()'s
807 */
808 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1)
809 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq)
810 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq)
811 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq)
812 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq)
813 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq)
814 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq)
815 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq)
816 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq)
817 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext)
818 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data)
819 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log)
820 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt)
821 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts)
822 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks)
823 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks)
824 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
825 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
826 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
827
828 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */
829 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */
830
831 #define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
832 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
833 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
834 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4)
835 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t)
836 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom)
837 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req)
838 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req)
839 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */
840
841
842 #ifndef HAVE_BBMACROS
843 /*
844 * Block I/O parameterization. A basic block (BB) is the lowest size of
845 * filesystem allocation, and must equal 512. Length units given to bio
846 * routines are in BB's.
847 */
848 #define BBSHIFT 9
849 #define BBSIZE (1<<BBSHIFT)
850 #define BBMASK (BBSIZE-1)
851 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
852 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT)
853 #define BBTOB(bbs) ((bbs) << BBSHIFT)
854 #endif
855
856 #endif /* __XFS_FS_H__ */
Linux with added FPC-III support