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 * NOTE: This file must be compile-able with C++ compilers.
12 */
13
14 /*
15 * Direct I/O attribute record used with XFS_IOC_DIOINFO
16 * d_miniosz is the min xfer size, xfer size multiple and file seek offset
17 * alignment.
18 */
19 #ifndef HAVE_DIOATTR
20 struct dioattr {
21 __u32 d_mem; /* data buffer memory alignment */
22 __u32 d_miniosz; /* min xfer size */
23 __u32 d_maxiosz; /* max xfer size */
24 };
25 #endif
26
27 /*
28 * Structure for XFS_IOC_GETBMAP.
29 * On input, fill in bmv_offset and bmv_length of the first structure
30 * to indicate the area of interest in the file, and bmv_entries with
31 * the number of array elements given back. The first structure is
32 * updated on return to give the offset and length for the next call.
33 */
34 #ifndef HAVE_GETBMAP
35 struct getbmap {
36 __s64 bmv_offset; /* file offset of segment in blocks */
37 __s64 bmv_block; /* starting block (64-bit daddr_t) */
38 __s64 bmv_length; /* length of segment, blocks */
39 __s32 bmv_count; /* # of entries in array incl. 1st */
40 __s32 bmv_entries; /* # of entries filled in (output) */
41 };
42 #endif
43
44 /*
45 * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries
46 * are used exactly as in the getbmap structure. The getbmapx structure
47 * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
48 * is only used for the first structure. It contains input flags
49 * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled
50 * in by the XFS_IOC_GETBMAPX command for each returned structure after
51 * the first.
52 */
53 #ifndef HAVE_GETBMAPX
54 struct getbmapx {
55 __s64 bmv_offset; /* file offset of segment in blocks */
56 __s64 bmv_block; /* starting block (64-bit daddr_t) */
57 __s64 bmv_length; /* length of segment, blocks */
58 __s32 bmv_count; /* # of entries in array incl. 1st */
59 __s32 bmv_entries; /* # of entries filled in (output). */
60 __s32 bmv_iflags; /* input flags (1st structure) */
61 __s32 bmv_oflags; /* output flags (after 1st structure)*/
62 __s32 bmv_unused1; /* future use */
63 __s32 bmv_unused2; /* future use */
64 };
65 #endif
66
67 /* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */
68 #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */
69 #define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */
70 #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */
71 #define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */
72 #define BMV_IF_NO_HOLES 0x10 /* Do not return holes */
73 #define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */
74 #define BMV_IF_VALID \
75 (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \
76 BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK)
77
78 /* bmv_oflags values - returned for each non-header segment */
79 #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */
80 #define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */
81 #define BMV_OF_LAST 0x4 /* segment is the last in the file */
82 #define BMV_OF_SHARED 0x8 /* segment shared with another file */
83
84 /* fmr_owner special values for FS_IOC_GETFSMAP */
85 #define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */
86 #define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */
87 #define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */
88 #define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */
89 #define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */
90 #define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */
91 #define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */
92 #define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */
93 #define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */
94 #define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */
95
96 /*
97 * File segment locking set data type for 64 bit access.
98 * Also used for all the RESV/FREE interfaces.
99 */
100 typedef struct xfs_flock64 {
101 __s16 l_type;
102 __s16 l_whence;
103 __s64 l_start;
104 __s64 l_len; /* len == 0 means until end of file */
105 __s32 l_sysid;
106 __u32 l_pid;
107 __s32 l_pad[4]; /* reserve area */
108 } xfs_flock64_t;
109
110 /*
111 * Output for XFS_IOC_FSGEOMETRY_V1
112 */
113 struct xfs_fsop_geom_v1 {
114 __u32 blocksize; /* filesystem (data) block size */
115 __u32 rtextsize; /* realtime extent size */
116 __u32 agblocks; /* fsblocks in an AG */
117 __u32 agcount; /* number of allocation groups */
118 __u32 logblocks; /* fsblocks in the log */
119 __u32 sectsize; /* (data) sector size, bytes */
120 __u32 inodesize; /* inode size in bytes */
121 __u32 imaxpct; /* max allowed inode space(%) */
122 __u64 datablocks; /* fsblocks in data subvolume */
123 __u64 rtblocks; /* fsblocks in realtime subvol */
124 __u64 rtextents; /* rt extents in realtime subvol*/
125 __u64 logstart; /* starting fsblock of the log */
126 unsigned char uuid[16]; /* unique id of the filesystem */
127 __u32 sunit; /* stripe unit, fsblocks */
128 __u32 swidth; /* stripe width, fsblocks */
129 __s32 version; /* structure version */
130 __u32 flags; /* superblock version flags */
131 __u32 logsectsize; /* log sector size, bytes */
132 __u32 rtsectsize; /* realtime sector size, bytes */
133 __u32 dirblocksize; /* directory block size, bytes */
134 };
135
136 /*
137 * Output for XFS_IOC_FSGEOMETRY_V4
138 */
139 struct xfs_fsop_geom_v4 {
140 __u32 blocksize; /* filesystem (data) block size */
141 __u32 rtextsize; /* realtime extent size */
142 __u32 agblocks; /* fsblocks in an AG */
143 __u32 agcount; /* number of allocation groups */
144 __u32 logblocks; /* fsblocks in the log */
145 __u32 sectsize; /* (data) sector size, bytes */
146 __u32 inodesize; /* inode size in bytes */
147 __u32 imaxpct; /* max allowed inode space(%) */
148 __u64 datablocks; /* fsblocks in data subvolume */
149 __u64 rtblocks; /* fsblocks in realtime subvol */
150 __u64 rtextents; /* rt extents in realtime subvol*/
151 __u64 logstart; /* starting fsblock of the log */
152 unsigned char uuid[16]; /* unique id of the filesystem */
153 __u32 sunit; /* stripe unit, fsblocks */
154 __u32 swidth; /* stripe width, fsblocks */
155 __s32 version; /* structure version */
156 __u32 flags; /* superblock version flags */
157 __u32 logsectsize; /* log sector size, bytes */
158 __u32 rtsectsize; /* realtime sector size, bytes */
159 __u32 dirblocksize; /* directory block size, bytes */
160 __u32 logsunit; /* log stripe unit, bytes */
161 };
162
163 /*
164 * Output for XFS_IOC_FSGEOMETRY
165 */
166 struct xfs_fsop_geom {
167 __u32 blocksize; /* filesystem (data) block size */
168 __u32 rtextsize; /* realtime extent size */
169 __u32 agblocks; /* fsblocks in an AG */
170 __u32 agcount; /* number of allocation groups */
171 __u32 logblocks; /* fsblocks in the log */
172 __u32 sectsize; /* (data) sector size, bytes */
173 __u32 inodesize; /* inode size in bytes */
174 __u32 imaxpct; /* max allowed inode space(%) */
175 __u64 datablocks; /* fsblocks in data subvolume */
176 __u64 rtblocks; /* fsblocks in realtime subvol */
177 __u64 rtextents; /* rt extents in realtime subvol*/
178 __u64 logstart; /* starting fsblock of the log */
179 unsigned char uuid[16]; /* unique id of the filesystem */
180 __u32 sunit; /* stripe unit, fsblocks */
181 __u32 swidth; /* stripe width, fsblocks */
182 __s32 version; /* structure version */
183 __u32 flags; /* superblock version flags */
184 __u32 logsectsize; /* log sector size, bytes */
185 __u32 rtsectsize; /* realtime sector size, bytes */
186 __u32 dirblocksize; /* directory block size, bytes */
187 __u32 logsunit; /* log stripe unit, bytes */
188 uint32_t sick; /* o: unhealthy fs & rt metadata */
189 uint32_t checked; /* o: checked fs & rt metadata */
190 __u32 rgextents; /* rt extents in a realtime group */
191 __u32 rgcount; /* number of realtime groups */
192 __u64 rtstart; /* start of internal rt section */
193 __u64 rtreserved; /* RT (zoned) reserved blocks */
194 __u64 reserved[14]; /* reserved space */
195 };
196
197 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */
198 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */
199 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */
200 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */
201 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */
202 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */
203 #define XFS_FSOP_GEOM_SICK_QUOTACHECK (1 << 6) /* quota counts */
204 #define XFS_FSOP_GEOM_SICK_NLINKS (1 << 7) /* inode link counts */
205 #define XFS_FSOP_GEOM_SICK_METADIR (1 << 8) /* metadata directory */
206 #define XFS_FSOP_GEOM_SICK_METAPATH (1 << 9) /* metadir tree path */
207
208 /* Output for XFS_FS_COUNTS */
209 typedef struct xfs_fsop_counts {
210 __u64 freedata; /* free data section blocks */
211 __u64 freertx; /* free rt extents */
212 __u64 freeino; /* free inodes */
213 __u64 allocino; /* total allocated inodes */
214 } xfs_fsop_counts_t;
215
216 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
217 typedef struct xfs_fsop_resblks {
218 __u64 resblks;
219 __u64 resblks_avail;
220 } xfs_fsop_resblks_t;
221
222 #define XFS_FSOP_GEOM_VERSION 0
223 #define XFS_FSOP_GEOM_VERSION_V5 5
224
225 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */
226 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */
227 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */
228 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */
229 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */
230 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */
231 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */
232 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */
233 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */
234 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */
235 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */
236 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */
237 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */
238 /* -- Do not use -- (1 << 13) SGI parent pointers */
239 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */
240 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */
241 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */
242 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */
243 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */
244 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */
245 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */
246 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */
247 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */
248 #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */
249 #define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */
250 #define XFS_FSOP_GEOM_FLAGS_PARENT (1 << 25) /* linux parent pointers */
251 #define XFS_FSOP_GEOM_FLAGS_METADIR (1 << 26) /* metadata directories */
252 #define XFS_FSOP_GEOM_FLAGS_ZONED (1 << 27) /* zoned rt device */
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 #define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE)
271 #define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE)
272
273 #define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1))
274
275 /* keep the maximum size under 2^31 by a small amount */
276 #define XFS_MAX_LOG_BYTES \
277 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
278
279 /* Used for sanity checks on superblock */
280 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
281 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \
282 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
283
284 /*
285 * Output for XFS_IOC_AG_GEOMETRY
286 */
287 struct xfs_ag_geometry {
288 uint32_t ag_number; /* i/o: AG number */
289 uint32_t ag_length; /* o: length in blocks */
290 uint32_t ag_freeblks; /* o: free space */
291 uint32_t ag_icount; /* o: inodes allocated */
292 uint32_t ag_ifree; /* o: inodes free */
293 uint32_t ag_sick; /* o: sick things in ag */
294 uint32_t ag_checked; /* o: checked metadata in ag */
295 uint32_t ag_flags; /* i/o: flags for this ag */
296 uint64_t ag_reserved[12];/* o: zero */
297 };
298 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */
299 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */
300 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */
301 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */
302 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */
303 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */
304 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */
305 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */
306 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */
307 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */
308 #define XFS_AG_GEOM_SICK_INODES (1 << 10) /* bad inodes were seen */
309
310 /*
311 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
312 */
313 typedef struct xfs_growfs_data {
314 __u64 newblocks; /* new data subvol size, fsblocks */
315 __u32 imaxpct; /* new inode space percentage limit */
316 } xfs_growfs_data_t;
317
318 typedef struct xfs_growfs_log {
319 __u32 newblocks; /* new log size, fsblocks */
320 __u32 isint; /* 1 if new log is internal */
321 } xfs_growfs_log_t;
322
323 typedef struct xfs_growfs_rt {
324 __u64 newblocks; /* new realtime size, fsblocks */
325 __u32 extsize; /* new realtime extent size, fsblocks */
326 } xfs_growfs_rt_t;
327
328
329 /*
330 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
331 */
332 typedef struct xfs_bstime {
333 __kernel_long_t tv_sec; /* seconds */
334 __s32 tv_nsec; /* and nanoseconds */
335 } xfs_bstime_t;
336
337 struct xfs_bstat {
338 __u64 bs_ino; /* inode number */
339 __u16 bs_mode; /* type and mode */
340 __u16 bs_nlink; /* number of links */
341 __u32 bs_uid; /* user id */
342 __u32 bs_gid; /* group id */
343 __u32 bs_rdev; /* device value */
344 __s32 bs_blksize; /* block size */
345 __s64 bs_size; /* file size */
346 xfs_bstime_t bs_atime; /* access time */
347 xfs_bstime_t bs_mtime; /* modify time */
348 xfs_bstime_t bs_ctime; /* inode change time */
349 int64_t bs_blocks; /* number of blocks */
350 __u32 bs_xflags; /* extended flags */
351 __s32 bs_extsize; /* extent size */
352 __s32 bs_extents; /* number of extents */
353 __u32 bs_gen; /* generation count */
354 __u16 bs_projid_lo; /* lower part of project id */
355 #define bs_projid bs_projid_lo /* (previously just bs_projid) */
356 __u16 bs_forkoff; /* inode fork offset in bytes */
357 __u16 bs_projid_hi; /* higher part of project id */
358 uint16_t bs_sick; /* sick inode metadata */
359 uint16_t bs_checked; /* checked inode metadata */
360 unsigned char bs_pad[2]; /* pad space, unused */
361 __u32 bs_cowextsize; /* cow extent size */
362 __u32 bs_dmevmask; /* DMIG event mask */
363 __u16 bs_dmstate; /* DMIG state info */
364 __u16 bs_aextents; /* attribute number of extents */
365 };
366
367 /* New bulkstat structure that reports v5 features and fixes padding issues */
368 struct xfs_bulkstat {
369 uint64_t bs_ino; /* inode number */
370 uint64_t bs_size; /* file size */
371
372 uint64_t bs_blocks; /* number of blocks */
373 uint64_t bs_xflags; /* extended flags */
374
375 int64_t bs_atime; /* access time, seconds */
376 int64_t bs_mtime; /* modify time, seconds */
377
378 int64_t bs_ctime; /* inode change time, seconds */
379 int64_t bs_btime; /* creation time, seconds */
380
381 uint32_t bs_gen; /* generation count */
382 uint32_t bs_uid; /* user id */
383 uint32_t bs_gid; /* group id */
384 uint32_t bs_projectid; /* project id */
385
386 uint32_t bs_atime_nsec; /* access time, nanoseconds */
387 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */
388 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */
389 uint32_t bs_btime_nsec; /* creation time, nanoseconds */
390
391 uint32_t bs_blksize; /* block size */
392 uint32_t bs_rdev; /* device value */
393 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */
394 uint32_t bs_extsize_blks; /* extent size hint, blocks */
395
396 uint32_t bs_nlink; /* number of links */
397 uint32_t bs_extents; /* 32-bit data fork extent counter */
398 uint32_t bs_aextents; /* attribute number of extents */
399 uint16_t bs_version; /* structure version */
400 uint16_t bs_forkoff; /* inode fork offset in bytes */
401
402 uint16_t bs_sick; /* sick inode metadata */
403 uint16_t bs_checked; /* checked inode metadata */
404 uint16_t bs_mode; /* type and mode */
405 uint16_t bs_pad2; /* zeroed */
406 uint64_t bs_extents64; /* 64-bit data fork extent counter */
407
408 uint64_t bs_pad[6]; /* zeroed */
409 };
410
411 #define XFS_BULKSTAT_VERSION_V1 (1)
412 #define XFS_BULKSTAT_VERSION_V5 (5)
413
414 /* bs_sick flags */
415 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */
416 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */
417 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */
418 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */
419 #define XFS_BS_SICK_DIR (1 << 4) /* directory */
420 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */
421 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */
422 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */
423 #define XFS_BS_SICK_DIRTREE (1 << 8) /* directory tree structure */
424
425 /*
426 * Project quota id helpers (previously projid was 16bit only
427 * and using two 16bit values to hold new 32bit projid was chosen
428 * to retain compatibility with "old" filesystems).
429 */
430 static inline uint32_t
bstat_get_projid(const struct xfs_bstat * bs)431 bstat_get_projid(const struct xfs_bstat *bs)
432 {
433 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
434 }
435
436 /*
437 * The user-level BulkStat Request interface structure.
438 */
439 struct xfs_fsop_bulkreq {
440 __u64 __user *lastip; /* last inode # pointer */
441 __s32 icount; /* count of entries in buffer */
442 void __user *ubuffer;/* user buffer for inode desc. */
443 __s32 __user *ocount; /* output count pointer */
444 };
445
446 /*
447 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
448 */
449 struct xfs_inogrp {
450 __u64 xi_startino; /* starting inode number */
451 __s32 xi_alloccount; /* # bits set in allocmask */
452 __u64 xi_allocmask; /* mask of allocated inodes */
453 };
454
455 /* New inumbers structure that reports v5 features and fixes padding issues */
456 struct xfs_inumbers {
457 uint64_t xi_startino; /* starting inode number */
458 uint64_t xi_allocmask; /* mask of allocated inodes */
459 uint8_t xi_alloccount; /* # bits set in allocmask */
460 uint8_t xi_version; /* version */
461 uint8_t xi_padding[6]; /* zero */
462 };
463
464 #define XFS_INUMBERS_VERSION_V1 (1)
465 #define XFS_INUMBERS_VERSION_V5 (5)
466
467 /* Header for bulk inode requests. */
468 struct xfs_bulk_ireq {
469 uint64_t ino; /* I/O: start with this inode */
470 uint32_t flags; /* I/O: operation flags */
471 uint32_t icount; /* I: count of entries in buffer */
472 uint32_t ocount; /* O: count of entries filled out */
473 uint32_t agno; /* I: see comment for IREQ_AGNO */
474 uint64_t reserved[5]; /* must be zero */
475 };
476
477 /*
478 * Only return results from the specified @agno. If @ino is zero, start
479 * with the first inode of @agno.
480 */
481 #define XFS_BULK_IREQ_AGNO (1U << 0)
482
483 /*
484 * Return bulkstat information for a single inode, where @ino value is a
485 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_*
486 * values below. Not compatible with XFS_BULK_IREQ_AGNO.
487 */
488 #define XFS_BULK_IREQ_SPECIAL (1U << 1)
489
490 /*
491 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign
492 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use
493 * xfs_bulkstat->bs_extents for returning data fork extent count and set
494 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and
495 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than
496 * XFS_MAX_EXTCNT_DATA_FORK_OLD.
497 */
498 #define XFS_BULK_IREQ_NREXT64 (1U << 2)
499
500 /*
501 * Allow bulkstat to return information about metadata directories. This
502 * enables xfs_scrub to find them for scanning, as they are otherwise ordinary
503 * directories.
504 */
505 #define XFS_BULK_IREQ_METADIR (1U << 3)
506
507 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \
508 XFS_BULK_IREQ_SPECIAL | \
509 XFS_BULK_IREQ_NREXT64 | \
510 XFS_BULK_IREQ_METADIR)
511
512 /* Operate on the root directory inode. */
513 #define XFS_BULK_IREQ_SPECIAL_ROOT (1)
514
515 /*
516 * ioctl structures for v5 bulkstat and inumbers requests
517 */
518 struct xfs_bulkstat_req {
519 struct xfs_bulk_ireq hdr;
520 struct xfs_bulkstat bulkstat[];
521 };
522 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \
523 (nr) * sizeof(struct xfs_bulkstat))
524
525 struct xfs_inumbers_req {
526 struct xfs_bulk_ireq hdr;
527 struct xfs_inumbers inumbers[];
528 };
529 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \
530 (nr) * sizeof(struct xfs_inumbers))
531
532 /*
533 * Error injection.
534 */
535 typedef struct xfs_error_injection {
536 __s32 fd;
537 __s32 errtag;
538 } xfs_error_injection_t;
539
540
541 /*
542 * Speculative preallocation trimming.
543 */
544 #define XFS_EOFBLOCKS_VERSION 1
545 struct xfs_fs_eofblocks {
546 __u32 eof_version;
547 __u32 eof_flags;
548 uid_t eof_uid;
549 gid_t eof_gid;
550 prid_t eof_prid;
551 __u32 pad32;
552 __u64 eof_min_file_size;
553 __u64 pad64[12];
554 };
555
556 /* eof_flags values */
557 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */
558 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */
559 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */
560 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */
561 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */
562 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm;
563 * kernel only, not included in
564 * valid mask */
565 #define XFS_EOF_FLAGS_VALID \
566 (XFS_EOF_FLAGS_SYNC | \
567 XFS_EOF_FLAGS_UID | \
568 XFS_EOF_FLAGS_GID | \
569 XFS_EOF_FLAGS_PRID | \
570 XFS_EOF_FLAGS_MINFILESIZE)
571
572
573 /*
574 * The user-level Handle Request interface structure.
575 */
576 typedef struct xfs_fsop_handlereq {
577 __u32 fd; /* fd for FD_TO_HANDLE */
578 void __user *path; /* user pathname */
579 __u32 oflags; /* open flags */
580 void __user *ihandle;/* user supplied handle */
581 __u32 ihandlen; /* user supplied length */
582 void __user *ohandle;/* user buffer for handle */
583 __u32 __user *ohandlen;/* user buffer length */
584 } xfs_fsop_handlereq_t;
585
586 /*
587 * Compound structures for passing args through Handle Request interfaces
588 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle
589 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE
590 */
591
592 /*
593 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface.
594 *
595 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix.
596 */
597 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */
598 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */
599 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */
600 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */
601
602 typedef struct xfs_attrlist_cursor {
603 __u32 opaque[4];
604 } xfs_attrlist_cursor_t;
605
606 /*
607 * Define how lists of attribute names are returned to userspace from the
608 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the
609 * beginning of the returned buffer, and a each entry in al_offset contains the
610 * relative offset of an xfs_attrlist_ent containing the actual entry.
611 *
612 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and
613 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr.
614 */
615 struct xfs_attrlist {
616 __s32 al_count; /* number of entries in attrlist */
617 __s32 al_more; /* T/F: more attrs (do call again) */
618 __s32 al_offset[]; /* byte offsets of attrs [var-sized] */
619 };
620
621 struct xfs_attrlist_ent { /* data from attr_list() */
622 __u32 a_valuelen; /* number bytes in value of attr */
623 char a_name[]; /* attr name (NULL terminated) */
624 };
625
626 typedef struct xfs_fsop_attrlist_handlereq {
627 struct xfs_fsop_handlereq hreq; /* handle interface structure */
628 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */
629 __u32 flags; /* which namespace to use */
630 __u32 buflen; /* length of buffer supplied */
631 void __user *buffer; /* returned names */
632 } xfs_fsop_attrlist_handlereq_t;
633
634 typedef struct xfs_attr_multiop {
635 __u32 am_opcode;
636 #define ATTR_OP_GET 1 /* return the indicated attr's value */
637 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */
638 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */
639 __s32 am_error;
640 void __user *am_attrname;
641 void __user *am_attrvalue;
642 __u32 am_length;
643 __u32 am_flags; /* XFS_IOC_ATTR_* */
644 } xfs_attr_multiop_t;
645
646 typedef struct xfs_fsop_attrmulti_handlereq {
647 struct xfs_fsop_handlereq hreq; /* handle interface structure */
648 __u32 opcount;/* count of following multiop */
649 struct xfs_attr_multiop __user *ops; /* attr_multi data */
650 } xfs_fsop_attrmulti_handlereq_t;
651
652 /*
653 * per machine unique filesystem identifier types.
654 */
655 typedef struct xfs_fsid {
656 __u32 val[2]; /* file system id type */
657 } xfs_fsid_t;
658
659 typedef struct xfs_fid {
660 __u16 fid_len; /* length of remainder */
661 __u16 fid_pad;
662 __u32 fid_gen; /* generation number */
663 __u64 fid_ino; /* 64 bits inode number */
664 } xfs_fid_t;
665
666 typedef struct xfs_handle {
667 union {
668 __s64 align; /* force alignment of ha_fid */
669 xfs_fsid_t _ha_fsid; /* unique file system identifier */
670 } ha_u;
671 xfs_fid_t ha_fid; /* file system specific file ID */
672 } xfs_handle_t;
673 #define ha_fsid ha_u._ha_fsid
674
675 /*
676 * Structure passed to XFS_IOC_SWAPEXT
677 */
678 typedef struct xfs_swapext
679 {
680 int64_t sx_version; /* version */
681 #define XFS_SX_VERSION 0
682 int64_t sx_fdtarget; /* fd of target file */
683 int64_t sx_fdtmp; /* fd of tmp file */
684 xfs_off_t sx_offset; /* offset into file */
685 xfs_off_t sx_length; /* leng from offset */
686 char sx_pad[16]; /* pad space, unused */
687 struct xfs_bstat sx_stat; /* stat of target b4 copy */
688 } xfs_swapext_t;
689
690 /*
691 * Flags for going down operation
692 */
693 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */
694 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
695 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
696
697 /* metadata scrubbing */
698 struct xfs_scrub_metadata {
699 __u32 sm_type; /* What to check? */
700 __u32 sm_flags; /* flags; see below. */
701 __u64 sm_ino; /* inode number. */
702 __u32 sm_gen; /* inode generation. */
703 __u32 sm_agno; /* ag number. */
704 __u64 sm_reserved[5]; /* pad to 64 bytes */
705 };
706
707 /*
708 * Metadata types and flags for scrub operation.
709 */
710
711 /* Scrub subcommands. */
712 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */
713 #define XFS_SCRUB_TYPE_SB 1 /* superblock */
714 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */
715 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */
716 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */
717 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */
718 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */
719 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */
720 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */
721 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */
722 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */
723 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */
724 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */
725 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */
726 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */
727 #define XFS_SCRUB_TYPE_DIR 15 /* directory */
728 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */
729 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */
730 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */
731 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */
732 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */
733 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */
734 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */
735 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */
736 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */
737 #define XFS_SCRUB_TYPE_QUOTACHECK 25 /* quota counters */
738 #define XFS_SCRUB_TYPE_NLINKS 26 /* inode link counts */
739 #define XFS_SCRUB_TYPE_HEALTHY 27 /* everything checked out ok */
740 #define XFS_SCRUB_TYPE_DIRTREE 28 /* directory tree structure */
741 #define XFS_SCRUB_TYPE_METAPATH 29 /* metadata directory tree paths */
742 #define XFS_SCRUB_TYPE_RGSUPER 30 /* realtime superblock */
743 #define XFS_SCRUB_TYPE_RTRMAPBT 31 /* rtgroup reverse mapping btree */
744 #define XFS_SCRUB_TYPE_RTREFCBT 32 /* realtime reference count btree */
745
746 /* Number of scrub subcommands. */
747 #define XFS_SCRUB_TYPE_NR 33
748
749 /*
750 * This special type code only applies to the vectored scrub implementation.
751 *
752 * If any of the previous scrub vectors recorded runtime errors or have
753 * sv_flags bits set that match the OFLAG bits in the barrier vector's
754 * sv_flags, set the barrier's sv_ret to -ECANCELED and return to userspace.
755 */
756 #define XFS_SCRUB_TYPE_BARRIER (0xFFFFFFFF)
757
758 /* i: Repair this metadata. */
759 #define XFS_SCRUB_IFLAG_REPAIR (1u << 0)
760
761 /* o: Metadata object needs repair. */
762 #define XFS_SCRUB_OFLAG_CORRUPT (1u << 1)
763
764 /*
765 * o: Metadata object could be optimized. It's not corrupt, but
766 * we could improve on it somehow.
767 */
768 #define XFS_SCRUB_OFLAG_PREEN (1u << 2)
769
770 /* o: Cross-referencing failed. */
771 #define XFS_SCRUB_OFLAG_XFAIL (1u << 3)
772
773 /* o: Metadata object disagrees with cross-referenced metadata. */
774 #define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4)
775
776 /* o: Scan was not complete. */
777 #define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5)
778
779 /* o: Metadata object looked funny but isn't corrupt. */
780 #define XFS_SCRUB_OFLAG_WARNING (1u << 6)
781
782 /*
783 * o: IFLAG_REPAIR was set but metadata object did not need fixing or
784 * optimization and has therefore not been altered.
785 */
786 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7)
787
788 /* i: Rebuild the data structure. */
789 #define XFS_SCRUB_IFLAG_FORCE_REBUILD (1u << 8)
790
791 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \
792 XFS_SCRUB_IFLAG_FORCE_REBUILD)
793 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \
794 XFS_SCRUB_OFLAG_PREEN | \
795 XFS_SCRUB_OFLAG_XFAIL | \
796 XFS_SCRUB_OFLAG_XCORRUPT | \
797 XFS_SCRUB_OFLAG_INCOMPLETE | \
798 XFS_SCRUB_OFLAG_WARNING | \
799 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
800 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
801
802 /* Vectored scrub calls to reduce the number of kernel transitions. */
803
804 struct xfs_scrub_vec {
805 __u32 sv_type; /* XFS_SCRUB_TYPE_* */
806 __u32 sv_flags; /* XFS_SCRUB_FLAGS_* */
807 __s32 sv_ret; /* 0 or a negative error code */
808 __u32 sv_reserved; /* must be zero */
809 };
810
811 /* Vectored metadata scrub control structure. */
812 struct xfs_scrub_vec_head {
813 __u64 svh_ino; /* inode number. */
814 __u32 svh_gen; /* inode generation. */
815 __u32 svh_agno; /* ag number. */
816 __u32 svh_flags; /* XFS_SCRUB_VEC_FLAGS_* */
817 __u16 svh_rest_us; /* wait this much time between vector items */
818 __u16 svh_nr; /* number of svh_vectors */
819 __u64 svh_reserved; /* must be zero */
820 __u64 svh_vectors; /* pointer to buffer of xfs_scrub_vec */
821 };
822
823 #define XFS_SCRUB_VEC_FLAGS_ALL (0)
824
825 /*
826 * i: sm_ino values for XFS_SCRUB_TYPE_METAPATH to select a metadata file for
827 * path checking.
828 */
829 #define XFS_SCRUB_METAPATH_PROBE (0) /* do we have a metapath scrubber? */
830 #define XFS_SCRUB_METAPATH_RTDIR (1) /* rtrgroups metadir */
831 #define XFS_SCRUB_METAPATH_RTBITMAP (2) /* per-rtg bitmap */
832 #define XFS_SCRUB_METAPATH_RTSUMMARY (3) /* per-rtg summary */
833 #define XFS_SCRUB_METAPATH_QUOTADIR (4) /* quota metadir */
834 #define XFS_SCRUB_METAPATH_USRQUOTA (5) /* user quota */
835 #define XFS_SCRUB_METAPATH_GRPQUOTA (6) /* group quota */
836 #define XFS_SCRUB_METAPATH_PRJQUOTA (7) /* project quota */
837 #define XFS_SCRUB_METAPATH_RTRMAPBT (8) /* realtime reverse mapping */
838 #define XFS_SCRUB_METAPATH_RTREFCOUNTBT (9) /* realtime refcount */
839
840 /* Number of metapath sm_ino values */
841 #define XFS_SCRUB_METAPATH_NR (10)
842
843 /*
844 * ioctl limits
845 */
846 #ifdef XATTR_LIST_MAX
847 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
848 #else
849 # define XFS_XATTR_LIST_MAX 65536
850 #endif
851
852 /*
853 * Exchange part of file1 with part of the file that this ioctl that is being
854 * called against (which we'll call file2). Filesystems must be able to
855 * restart and complete the operation even after the system goes down.
856 */
857 struct xfs_exchange_range {
858 __s32 file1_fd;
859 __u32 pad; /* must be zeroes */
860 __u64 file1_offset; /* file1 offset, bytes */
861 __u64 file2_offset; /* file2 offset, bytes */
862 __u64 length; /* bytes to exchange */
863
864 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */
865 };
866
867 /*
868 * Using the same definition of file2 as struct xfs_exchange_range, commit the
869 * contents of file1 into file2 if file2 has the same inode number, mtime, and
870 * ctime as the arguments provided to the call. The old contents of file2 will
871 * be moved to file1.
872 *
873 * Returns -EBUSY if there isn't an exact match for the file2 fields.
874 *
875 * Filesystems must be able to restart and complete the operation even after
876 * the system goes down.
877 */
878 struct xfs_commit_range {
879 __s32 file1_fd;
880 __u32 pad; /* must be zeroes */
881 __u64 file1_offset; /* file1 offset, bytes */
882 __u64 file2_offset; /* file2 offset, bytes */
883 __u64 length; /* bytes to exchange */
884
885 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */
886
887 /* opaque file2 metadata for freshness checks */
888 __u64 file2_freshness[6];
889 };
890
891 /*
892 * Exchange file data all the way to the ends of both files, and then exchange
893 * the file sizes. This flag can be used to replace a file's contents with a
894 * different amount of data. length will be ignored.
895 */
896 #define XFS_EXCHANGE_RANGE_TO_EOF (1ULL << 0)
897
898 /* Flush all changes in file data and file metadata to disk before returning. */
899 #define XFS_EXCHANGE_RANGE_DSYNC (1ULL << 1)
900
901 /* Dry run; do all the parameter verification but do not change anything. */
902 #define XFS_EXCHANGE_RANGE_DRY_RUN (1ULL << 2)
903
904 /*
905 * Exchange only the parts of the two files where the file allocation units
906 * mapped to file1's range have been written to. This can accelerate
907 * scatter-gather atomic writes with a temp file if all writes are aligned to
908 * the file allocation unit.
909 */
910 #define XFS_EXCHANGE_RANGE_FILE1_WRITTEN (1ULL << 3)
911
912 #define XFS_EXCHANGE_RANGE_ALL_FLAGS (XFS_EXCHANGE_RANGE_TO_EOF | \
913 XFS_EXCHANGE_RANGE_DSYNC | \
914 XFS_EXCHANGE_RANGE_DRY_RUN | \
915 XFS_EXCHANGE_RANGE_FILE1_WRITTEN)
916
917 /* Iterating parent pointers of files. */
918
919 /* target was the root directory */
920 #define XFS_GETPARENTS_OFLAG_ROOT (1U << 0)
921
922 /* Cursor is done iterating pptrs */
923 #define XFS_GETPARENTS_OFLAG_DONE (1U << 1)
924
925 #define XFS_GETPARENTS_OFLAGS_ALL (XFS_GETPARENTS_OFLAG_ROOT | \
926 XFS_GETPARENTS_OFLAG_DONE)
927
928 #define XFS_GETPARENTS_IFLAGS_ALL (0)
929
930 struct xfs_getparents_rec {
931 struct xfs_handle gpr_parent; /* Handle to parent */
932 __u32 gpr_reclen; /* Length of entire record */
933 __u32 gpr_reserved; /* zero */
934 char gpr_name[]; /* Null-terminated filename */
935 };
936
937 /* Iterate through this file's directory parent pointers */
938 struct xfs_getparents {
939 /*
940 * Structure to track progress in iterating the parent pointers.
941 * Must be initialized to zeroes before the first ioctl call, and
942 * not touched by callers after that.
943 */
944 struct xfs_attrlist_cursor gp_cursor;
945
946 /* Input flags: XFS_GETPARENTS_IFLAG* */
947 __u16 gp_iflags;
948
949 /* Output flags: XFS_GETPARENTS_OFLAG* */
950 __u16 gp_oflags;
951
952 /* Size of the gp_buffer in bytes */
953 __u32 gp_bufsize;
954
955 /* Must be set to zero */
956 __u64 gp_reserved;
957
958 /* Pointer to a buffer in which to place xfs_getparents_rec */
959 __u64 gp_buffer;
960 };
961
962 static inline struct xfs_getparents_rec *
xfs_getparents_first_rec(struct xfs_getparents * gp)963 xfs_getparents_first_rec(struct xfs_getparents *gp)
964 {
965 return (struct xfs_getparents_rec *)(uintptr_t)gp->gp_buffer;
966 }
967
968 static inline struct xfs_getparents_rec *
xfs_getparents_next_rec(struct xfs_getparents * gp,struct xfs_getparents_rec * gpr)969 xfs_getparents_next_rec(struct xfs_getparents *gp,
970 struct xfs_getparents_rec *gpr)
971 {
972 void *next = ((char *)gpr + gpr->gpr_reclen);
973 void *end = (void *)(uintptr_t)(gp->gp_buffer + gp->gp_bufsize);
974
975 if (next >= end)
976 return NULL;
977
978 return (struct xfs_getparents_rec *)next;
979 }
980
981 /* Iterate through this file handle's directory parent pointers. */
982 struct xfs_getparents_by_handle {
983 /* Handle to file whose parents we want. */
984 struct xfs_handle gph_handle;
985
986 struct xfs_getparents gph_request;
987 };
988
989 /*
990 * Output for XFS_IOC_RTGROUP_GEOMETRY
991 */
992 struct xfs_rtgroup_geometry {
993 __u32 rg_number; /* i/o: rtgroup number */
994 __u32 rg_length; /* o: length in blocks */
995 __u32 rg_sick; /* o: sick things in ag */
996 __u32 rg_checked; /* o: checked metadata in ag */
997 __u32 rg_flags; /* i/o: flags for this ag */
998 __u32 rg_reserved[27]; /* o: zero */
999 };
1000 #define XFS_RTGROUP_GEOM_SICK_SUPER (1U << 0) /* superblock */
1001 #define XFS_RTGROUP_GEOM_SICK_BITMAP (1U << 1) /* rtbitmap */
1002 #define XFS_RTGROUP_GEOM_SICK_SUMMARY (1U << 2) /* rtsummary */
1003 #define XFS_RTGROUP_GEOM_SICK_RMAPBT (1U << 3) /* reverse mappings */
1004 #define XFS_RTGROUP_GEOM_SICK_REFCNTBT (1U << 4) /* reference counts */
1005
1006 /*
1007 * ioctl commands that are used by Linux filesystems
1008 */
1009 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS
1010 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS
1011 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION
1012
1013 /*
1014 * ioctl commands that replace IRIX fcntl()'s
1015 * For 'documentation' purposed more than anything else,
1016 * the "cmd #" field reflects the IRIX fcntl number.
1017 */
1018 /* XFS_IOC_ALLOCSP ------- deprecated 10 */
1019 /* XFS_IOC_FREESP -------- deprecated 11 */
1020 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
1021 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
1022 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
1023 /* XFS_IOC_ALLOCSP64 ----- deprecated 36 */
1024 /* XFS_IOC_FREESP64 ------ deprecated 37 */
1025 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
1026 /* XFS_IOC_FSSETDM ------- deprecated 39 */
1027 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64)
1028 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64)
1029 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64)
1030 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64)
1031 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap)
1032 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr)
1033 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */
1034 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
1035 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
1036 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64)
1037 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks)
1038 /* XFS_IOC_GETFSMAP ------ hoisted 59 */
1039 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata)
1040 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry)
1041 #define XFS_IOC_GETPARENTS _IOWR('X', 62, struct xfs_getparents)
1042 #define XFS_IOC_GETPARENTS_BY_HANDLE _IOWR('X', 63, struct xfs_getparents_by_handle)
1043 #define XFS_IOC_SCRUBV_METADATA _IOWR('X', 64, struct xfs_scrub_vec_head)
1044 #define XFS_IOC_RTGROUP_GEOMETRY _IOWR('X', 65, struct xfs_rtgroup_geometry)
1045
1046 /*
1047 * ioctl commands that replace IRIX syssgi()'s
1048 */
1049 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1)
1050 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq)
1051 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq)
1052 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq)
1053 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq)
1054 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq)
1055 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq)
1056 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq)
1057 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq)
1058 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext)
1059 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data)
1060 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log)
1061 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt)
1062 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts)
1063 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks)
1064 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks)
1065 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
1066 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
1067 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
1068
1069 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */
1070 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */
1071
1072 /* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */
1073 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
1074 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
1075 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4)
1076 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t)
1077 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom)
1078 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req)
1079 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req)
1080 #define XFS_IOC_EXCHANGE_RANGE _IOW ('X', 129, struct xfs_exchange_range)
1081 #define XFS_IOC_START_COMMIT _IOR ('X', 130, struct xfs_commit_range)
1082 #define XFS_IOC_COMMIT_RANGE _IOW ('X', 131, struct xfs_commit_range)
1083 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */
1084
1085 /*
1086 * Devices supported by a single XFS file system. Reported in fsmaps fmr_device
1087 * when using internal RT devices.
1088 */
1089 enum xfs_device {
1090 XFS_DEV_DATA = 1,
1091 XFS_DEV_LOG = 2,
1092 XFS_DEV_RT = 3,
1093 };
1094
1095 #ifndef HAVE_BBMACROS
1096 /*
1097 * Block I/O parameterization. A basic block (BB) is the lowest size of
1098 * filesystem allocation, and must equal 512. Length units given to bio
1099 * routines are in BB's.
1100 */
1101 #define BBSHIFT 9
1102 #define BBSIZE (1<<BBSHIFT)
1103 #define BBMASK (BBSIZE-1)
1104 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
1105 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT)
1106 #define BBTOB(bbs) ((bbs) << BBSHIFT)
1107 #endif
1108
1109 #endif /* __XFS_FS_H__ */
1110