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 19struct 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 34struct 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 53struct 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 */ 99typedef 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 */ 112struct 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 */ 138struct 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 */ 165struct 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#define XFS_FSOP_GEOM_SICK_QUOTACHECK (1 << 6) /* quota counts */ 199#define XFS_FSOP_GEOM_SICK_NLINKS (1 << 7) /* inode link counts */ 200 201/* Output for XFS_FS_COUNTS */ 202typedef struct xfs_fsop_counts { 203 __u64 freedata; /* free data section blocks */ 204 __u64 freertx; /* free rt extents */ 205 __u64 freeino; /* free inodes */ 206 __u64 allocino; /* total allocated inodes */ 207} xfs_fsop_counts_t; 208 209/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ 210typedef struct xfs_fsop_resblks { 211 __u64 resblks; 212 __u64 resblks_avail; 213} xfs_fsop_resblks_t; 214 215#define XFS_FSOP_GEOM_VERSION 0 216#define XFS_FSOP_GEOM_VERSION_V5 5 217 218#define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */ 219#define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */ 220#define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */ 221#define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */ 222#define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */ 223#define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */ 224#define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */ 225#define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */ 226#define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */ 227#define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */ 228#define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */ 229#define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */ 230#define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */ 231 /* -- Do not use -- (1 << 13) SGI parent pointers */ 232#define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */ 233#define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */ 234#define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */ 235#define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */ 236#define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */ 237#define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */ 238#define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */ 239#define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */ 240#define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ 241#define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */ 242 243/* 244 * Minimum and maximum sizes need for growth checks. 245 * 246 * Block counts are in units of filesystem blocks, not basic blocks. 247 */ 248#define XFS_MIN_AG_BLOCKS 64 249#define XFS_MIN_LOG_BLOCKS 512ULL 250#define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL) 251#define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL) 252 253/* 254 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than 255 * 16MB or larger than 1TB. 256 */ 257#define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */ 258#define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */ 259#define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE) 260#define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE) 261 262#define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1)) 263 264/* keep the maximum size under 2^31 by a small amount */ 265#define XFS_MAX_LOG_BYTES \ 266 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES) 267 268/* Used for sanity checks on superblock */ 269#define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks) 270#define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \ 271 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS) 272 273/* 274 * Output for XFS_IOC_AG_GEOMETRY 275 */ 276struct xfs_ag_geometry { 277 uint32_t ag_number; /* i/o: AG number */ 278 uint32_t ag_length; /* o: length in blocks */ 279 uint32_t ag_freeblks; /* o: free space */ 280 uint32_t ag_icount; /* o: inodes allocated */ 281 uint32_t ag_ifree; /* o: inodes free */ 282 uint32_t ag_sick; /* o: sick things in ag */ 283 uint32_t ag_checked; /* o: checked metadata in ag */ 284 uint32_t ag_flags; /* i/o: flags for this ag */ 285 uint64_t ag_reserved[12];/* o: zero */ 286}; 287#define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */ 288#define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */ 289#define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */ 290#define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */ 291#define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */ 292#define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */ 293#define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */ 294#define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */ 295#define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */ 296#define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */ 297#define XFS_AG_GEOM_SICK_INODES (1 << 10) /* bad inodes were seen */ 298 299/* 300 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT 301 */ 302typedef struct xfs_growfs_data { 303 __u64 newblocks; /* new data subvol size, fsblocks */ 304 __u32 imaxpct; /* new inode space percentage limit */ 305} xfs_growfs_data_t; 306 307typedef struct xfs_growfs_log { 308 __u32 newblocks; /* new log size, fsblocks */ 309 __u32 isint; /* 1 if new log is internal */ 310} xfs_growfs_log_t; 311 312typedef struct xfs_growfs_rt { 313 __u64 newblocks; /* new realtime size, fsblocks */ 314 __u32 extsize; /* new realtime extent size, fsblocks */ 315} xfs_growfs_rt_t; 316 317 318/* 319 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE 320 */ 321typedef struct xfs_bstime { 322 __kernel_long_t tv_sec; /* seconds */ 323 __s32 tv_nsec; /* and nanoseconds */ 324} xfs_bstime_t; 325 326struct xfs_bstat { 327 __u64 bs_ino; /* inode number */ 328 __u16 bs_mode; /* type and mode */ 329 __u16 bs_nlink; /* number of links */ 330 __u32 bs_uid; /* user id */ 331 __u32 bs_gid; /* group id */ 332 __u32 bs_rdev; /* device value */ 333 __s32 bs_blksize; /* block size */ 334 __s64 bs_size; /* file size */ 335 xfs_bstime_t bs_atime; /* access time */ 336 xfs_bstime_t bs_mtime; /* modify time */ 337 xfs_bstime_t bs_ctime; /* inode change time */ 338 int64_t bs_blocks; /* number of blocks */ 339 __u32 bs_xflags; /* extended flags */ 340 __s32 bs_extsize; /* extent size */ 341 __s32 bs_extents; /* number of extents */ 342 __u32 bs_gen; /* generation count */ 343 __u16 bs_projid_lo; /* lower part of project id */ 344#define bs_projid bs_projid_lo /* (previously just bs_projid) */ 345 __u16 bs_forkoff; /* inode fork offset in bytes */ 346 __u16 bs_projid_hi; /* higher part of project id */ 347 uint16_t bs_sick; /* sick inode metadata */ 348 uint16_t bs_checked; /* checked inode metadata */ 349 unsigned char bs_pad[2]; /* pad space, unused */ 350 __u32 bs_cowextsize; /* cow extent size */ 351 __u32 bs_dmevmask; /* DMIG event mask */ 352 __u16 bs_dmstate; /* DMIG state info */ 353 __u16 bs_aextents; /* attribute number of extents */ 354}; 355 356/* New bulkstat structure that reports v5 features and fixes padding issues */ 357struct xfs_bulkstat { 358 uint64_t bs_ino; /* inode number */ 359 uint64_t bs_size; /* file size */ 360 361 uint64_t bs_blocks; /* number of blocks */ 362 uint64_t bs_xflags; /* extended flags */ 363 364 int64_t bs_atime; /* access time, seconds */ 365 int64_t bs_mtime; /* modify time, seconds */ 366 367 int64_t bs_ctime; /* inode change time, seconds */ 368 int64_t bs_btime; /* creation time, seconds */ 369 370 uint32_t bs_gen; /* generation count */ 371 uint32_t bs_uid; /* user id */ 372 uint32_t bs_gid; /* group id */ 373 uint32_t bs_projectid; /* project id */ 374 375 uint32_t bs_atime_nsec; /* access time, nanoseconds */ 376 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */ 377 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */ 378 uint32_t bs_btime_nsec; /* creation time, nanoseconds */ 379 380 uint32_t bs_blksize; /* block size */ 381 uint32_t bs_rdev; /* device value */ 382 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */ 383 uint32_t bs_extsize_blks; /* extent size hint, blocks */ 384 385 uint32_t bs_nlink; /* number of links */ 386 uint32_t bs_extents; /* 32-bit data fork extent counter */ 387 uint32_t bs_aextents; /* attribute number of extents */ 388 uint16_t bs_version; /* structure version */ 389 uint16_t bs_forkoff; /* inode fork offset in bytes */ 390 391 uint16_t bs_sick; /* sick inode metadata */ 392 uint16_t bs_checked; /* checked inode metadata */ 393 uint16_t bs_mode; /* type and mode */ 394 uint16_t bs_pad2; /* zeroed */ 395 uint64_t bs_extents64; /* 64-bit data fork extent counter */ 396 397 uint64_t bs_pad[6]; /* zeroed */ 398}; 399 400#define XFS_BULKSTAT_VERSION_V1 (1) 401#define XFS_BULKSTAT_VERSION_V5 (5) 402 403/* bs_sick flags */ 404#define XFS_BS_SICK_INODE (1 << 0) /* inode core */ 405#define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */ 406#define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */ 407#define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */ 408#define XFS_BS_SICK_DIR (1 << 4) /* directory */ 409#define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */ 410#define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */ 411#define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */ 412 413/* 414 * Project quota id helpers (previously projid was 16bit only 415 * and using two 16bit values to hold new 32bit projid was chosen 416 * to retain compatibility with "old" filesystems). 417 */ 418static inline uint32_t 419bstat_get_projid(const struct xfs_bstat *bs) 420{ 421 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo; 422} 423 424/* 425 * The user-level BulkStat Request interface structure. 426 */ 427struct xfs_fsop_bulkreq { 428 __u64 __user *lastip; /* last inode # pointer */ 429 __s32 icount; /* count of entries in buffer */ 430 void __user *ubuffer;/* user buffer for inode desc. */ 431 __s32 __user *ocount; /* output count pointer */ 432}; 433 434/* 435 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). 436 */ 437struct xfs_inogrp { 438 __u64 xi_startino; /* starting inode number */ 439 __s32 xi_alloccount; /* # bits set in allocmask */ 440 __u64 xi_allocmask; /* mask of allocated inodes */ 441}; 442 443/* New inumbers structure that reports v5 features and fixes padding issues */ 444struct xfs_inumbers { 445 uint64_t xi_startino; /* starting inode number */ 446 uint64_t xi_allocmask; /* mask of allocated inodes */ 447 uint8_t xi_alloccount; /* # bits set in allocmask */ 448 uint8_t xi_version; /* version */ 449 uint8_t xi_padding[6]; /* zero */ 450}; 451 452#define XFS_INUMBERS_VERSION_V1 (1) 453#define XFS_INUMBERS_VERSION_V5 (5) 454 455/* Header for bulk inode requests. */ 456struct xfs_bulk_ireq { 457 uint64_t ino; /* I/O: start with this inode */ 458 uint32_t flags; /* I/O: operation flags */ 459 uint32_t icount; /* I: count of entries in buffer */ 460 uint32_t ocount; /* O: count of entries filled out */ 461 uint32_t agno; /* I: see comment for IREQ_AGNO */ 462 uint64_t reserved[5]; /* must be zero */ 463}; 464 465/* 466 * Only return results from the specified @agno. If @ino is zero, start 467 * with the first inode of @agno. 468 */ 469#define XFS_BULK_IREQ_AGNO (1U << 0) 470 471/* 472 * Return bulkstat information for a single inode, where @ino value is a 473 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_* 474 * values below. Not compatible with XFS_BULK_IREQ_AGNO. 475 */ 476#define XFS_BULK_IREQ_SPECIAL (1U << 1) 477 478/* 479 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign 480 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use 481 * xfs_bulkstat->bs_extents for returning data fork extent count and set 482 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and 483 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than 484 * XFS_MAX_EXTCNT_DATA_FORK_OLD. 485 */ 486#define XFS_BULK_IREQ_NREXT64 (1U << 2) 487 488#define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \ 489 XFS_BULK_IREQ_SPECIAL | \ 490 XFS_BULK_IREQ_NREXT64) 491 492/* Operate on the root directory inode. */ 493#define XFS_BULK_IREQ_SPECIAL_ROOT (1) 494 495/* 496 * ioctl structures for v5 bulkstat and inumbers requests 497 */ 498struct xfs_bulkstat_req { 499 struct xfs_bulk_ireq hdr; 500 struct xfs_bulkstat bulkstat[]; 501}; 502#define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \ 503 (nr) * sizeof(struct xfs_bulkstat)) 504 505struct xfs_inumbers_req { 506 struct xfs_bulk_ireq hdr; 507 struct xfs_inumbers inumbers[]; 508}; 509#define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \ 510 (nr) * sizeof(struct xfs_inumbers)) 511 512/* 513 * Error injection. 514 */ 515typedef struct xfs_error_injection { 516 __s32 fd; 517 __s32 errtag; 518} xfs_error_injection_t; 519 520 521/* 522 * Speculative preallocation trimming. 523 */ 524#define XFS_EOFBLOCKS_VERSION 1 525struct xfs_fs_eofblocks { 526 __u32 eof_version; 527 __u32 eof_flags; 528 uid_t eof_uid; 529 gid_t eof_gid; 530 prid_t eof_prid; 531 __u32 pad32; 532 __u64 eof_min_file_size; 533 __u64 pad64[12]; 534}; 535 536/* eof_flags values */ 537#define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ 538#define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */ 539#define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */ 540#define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */ 541#define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */ 542#define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm; 543 * kernel only, not included in 544 * valid mask */ 545#define XFS_EOF_FLAGS_VALID \ 546 (XFS_EOF_FLAGS_SYNC | \ 547 XFS_EOF_FLAGS_UID | \ 548 XFS_EOF_FLAGS_GID | \ 549 XFS_EOF_FLAGS_PRID | \ 550 XFS_EOF_FLAGS_MINFILESIZE) 551 552 553/* 554 * The user-level Handle Request interface structure. 555 */ 556typedef struct xfs_fsop_handlereq { 557 __u32 fd; /* fd for FD_TO_HANDLE */ 558 void __user *path; /* user pathname */ 559 __u32 oflags; /* open flags */ 560 void __user *ihandle;/* user supplied handle */ 561 __u32 ihandlen; /* user supplied length */ 562 void __user *ohandle;/* user buffer for handle */ 563 __u32 __user *ohandlen;/* user buffer length */ 564} xfs_fsop_handlereq_t; 565 566/* 567 * Compound structures for passing args through Handle Request interfaces 568 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle 569 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE 570 */ 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 582typedef 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 */ 595struct 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[]; /* byte offsets of attrs [var-sized] */ 599}; 600 601struct xfs_attrlist_ent { /* data from attr_list() */ 602 __u32 a_valuelen; /* number bytes in value of attr */ 603 char a_name[]; /* attr name (NULL terminated) */ 604}; 605 606typedef 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 614typedef 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 626typedef 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 */ 635typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */ 636 637typedef 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 644typedef 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 */ 656typedef 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 */ 676struct 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#define XFS_SCRUB_TYPE_QUOTACHECK 25 /* quota counters */ 716#define XFS_SCRUB_TYPE_NLINKS 26 /* inode link counts */ 717#define XFS_SCRUB_TYPE_HEALTHY 27 /* everything checked out ok */ 718 719/* Number of scrub subcommands. */ 720#define XFS_SCRUB_TYPE_NR 28 721 722/* i: Repair this metadata. */ 723#define XFS_SCRUB_IFLAG_REPAIR (1u << 0) 724 725/* o: Metadata object needs repair. */ 726#define XFS_SCRUB_OFLAG_CORRUPT (1u << 1) 727 728/* 729 * o: Metadata object could be optimized. It's not corrupt, but 730 * we could improve on it somehow. 731 */ 732#define XFS_SCRUB_OFLAG_PREEN (1u << 2) 733 734/* o: Cross-referencing failed. */ 735#define XFS_SCRUB_OFLAG_XFAIL (1u << 3) 736 737/* o: Metadata object disagrees with cross-referenced metadata. */ 738#define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4) 739 740/* o: Scan was not complete. */ 741#define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5) 742 743/* o: Metadata object looked funny but isn't corrupt. */ 744#define XFS_SCRUB_OFLAG_WARNING (1u << 6) 745 746/* 747 * o: IFLAG_REPAIR was set but metadata object did not need fixing or 748 * optimization and has therefore not been altered. 749 */ 750#define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7) 751 752/* i: Rebuild the data structure. */ 753#define XFS_SCRUB_IFLAG_FORCE_REBUILD (1u << 8) 754 755#define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \ 756 XFS_SCRUB_IFLAG_FORCE_REBUILD) 757#define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \ 758 XFS_SCRUB_OFLAG_PREEN | \ 759 XFS_SCRUB_OFLAG_XFAIL | \ 760 XFS_SCRUB_OFLAG_XCORRUPT | \ 761 XFS_SCRUB_OFLAG_INCOMPLETE | \ 762 XFS_SCRUB_OFLAG_WARNING | \ 763 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED) 764#define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT) 765 766/* 767 * ioctl limits 768 */ 769#ifdef XATTR_LIST_MAX 770# define XFS_XATTR_LIST_MAX XATTR_LIST_MAX 771#else 772# define XFS_XATTR_LIST_MAX 65536 773#endif 774 775 776/* 777 * ioctl commands that are used by Linux filesystems 778 */ 779#define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS 780#define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS 781#define XFS_IOC_GETVERSION FS_IOC_GETVERSION 782 783/* 784 * ioctl commands that replace IRIX fcntl()'s 785 * For 'documentation' purposed more than anything else, 786 * the "cmd #" field reflects the IRIX fcntl number. 787 */ 788/* XFS_IOC_ALLOCSP ------- deprecated 10 */ 789/* XFS_IOC_FREESP -------- deprecated 11 */ 790#define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr) 791#define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 792#define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 793/* XFS_IOC_ALLOCSP64 ----- deprecated 36 */ 794/* XFS_IOC_FREESP64 ------ deprecated 37 */ 795#define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) 796/* XFS_IOC_FSSETDM ------- deprecated 39 */ 797#define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64) 798#define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64) 799#define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64) 800#define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64) 801#define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap) 802#define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr) 803/* XFS_IOC_SETBIOSIZE ---- deprecated 46 */ 804/* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ 805#define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) 806#define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64) 807#define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks) 808/* XFS_IOC_GETFSMAP ------ hoisted 59 */ 809#define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata) 810#define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry) 811 812/* 813 * ioctl commands that replace IRIX syssgi()'s 814 */ 815#define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1) 816#define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq) 817#define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq) 818#define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq) 819#define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq) 820#define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq) 821#define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq) 822#define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq) 823#define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq) 824#define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext) 825#define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data) 826#define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log) 827#define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt) 828#define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts) 829#define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks) 830#define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks) 831#define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection) 832#define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection) 833/* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */ 834 835#define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */ 836#define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */ 837 838/* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */ 839#define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq) 840#define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq) 841#define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4) 842#define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t) 843#define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom) 844#define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req) 845#define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req) 846/* XFS_IOC_GETFSUUID ---------- deprecated 140 */ 847 848 849#ifndef HAVE_BBMACROS 850/* 851 * Block I/O parameterization. A basic block (BB) is the lowest size of 852 * filesystem allocation, and must equal 512. Length units given to bio 853 * routines are in BB's. 854 */ 855#define BBSHIFT 9 856#define BBSIZE (1<<BBSHIFT) 857#define BBMASK (BBSIZE-1) 858#define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT) 859#define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT) 860#define BBTOB(bbs) ((bbs) << BBSHIFT) 861#endif 862 863#endif /* __XFS_FS_H__ */ 864