1 /* SPDX-License-Identifier: LGPL-2.1 */ 2 /* 3 * Copyright (c) 1995-2005 Silicon Graphics, Inc. 4 * All Rights Reserved. 5 */ 6 #ifndef __XFS_FS_H__ 7 #define __XFS_FS_H__ 8 9 /* 10 * SGI's XFS filesystem's major stuff (constants, structures) 11 */ 12 13 /* 14 * Direct I/O attribute record used with XFS_IOC_DIOINFO 15 * d_miniosz is the min xfer size, xfer size multiple and file seek offset 16 * alignment. 17 */ 18 #ifndef HAVE_DIOATTR 19 struct dioattr { 20 __u32 d_mem; /* data buffer memory alignment */ 21 __u32 d_miniosz; /* min xfer size */ 22 __u32 d_maxiosz; /* max xfer size */ 23 }; 24 #endif 25 26 /* 27 * Structure for XFS_IOC_GETBMAP. 28 * On input, fill in bmv_offset and bmv_length of the first structure 29 * to indicate the area of interest in the file, and bmv_entries with 30 * the number of array elements given back. The first structure is 31 * updated on return to give the offset and length for the next call. 32 */ 33 #ifndef HAVE_GETBMAP 34 struct getbmap { 35 __s64 bmv_offset; /* file offset of segment in blocks */ 36 __s64 bmv_block; /* starting block (64-bit daddr_t) */ 37 __s64 bmv_length; /* length of segment, blocks */ 38 __s32 bmv_count; /* # of entries in array incl. 1st */ 39 __s32 bmv_entries; /* # of entries filled in (output) */ 40 }; 41 #endif 42 43 /* 44 * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries 45 * are used exactly as in the getbmap structure. The getbmapx structure 46 * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field 47 * is only used for the first structure. It contains input flags 48 * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled 49 * in by the XFS_IOC_GETBMAPX command for each returned structure after 50 * the first. 51 */ 52 #ifndef HAVE_GETBMAPX 53 struct getbmapx { 54 __s64 bmv_offset; /* file offset of segment in blocks */ 55 __s64 bmv_block; /* starting block (64-bit daddr_t) */ 56 __s64 bmv_length; /* length of segment, blocks */ 57 __s32 bmv_count; /* # of entries in array incl. 1st */ 58 __s32 bmv_entries; /* # of entries filled in (output). */ 59 __s32 bmv_iflags; /* input flags (1st structure) */ 60 __s32 bmv_oflags; /* output flags (after 1st structure)*/ 61 __s32 bmv_unused1; /* future use */ 62 __s32 bmv_unused2; /* future use */ 63 }; 64 #endif 65 66 /* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */ 67 #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */ 68 #define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */ 69 #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ 70 #define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */ 71 #define BMV_IF_NO_HOLES 0x10 /* Do not return holes */ 72 #define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */ 73 #define BMV_IF_VALID \ 74 (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \ 75 BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK) 76 77 /* bmv_oflags values - returned for each non-header segment */ 78 #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ 79 #define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */ 80 #define BMV_OF_LAST 0x4 /* segment is the last in the file */ 81 #define BMV_OF_SHARED 0x8 /* segment shared with another file */ 82 83 /* fmr_owner special values for FS_IOC_GETFSMAP */ 84 #define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */ 85 #define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */ 86 #define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */ 87 #define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */ 88 #define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */ 89 #define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */ 90 #define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */ 91 #define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */ 92 #define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */ 93 #define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */ 94 95 /* 96 * File segment locking set data type for 64 bit access. 97 * Also used for all the RESV/FREE interfaces. 98 */ 99 typedef struct xfs_flock64 { 100 __s16 l_type; 101 __s16 l_whence; 102 __s64 l_start; 103 __s64 l_len; /* len == 0 means until end of file */ 104 __s32 l_sysid; 105 __u32 l_pid; 106 __s32 l_pad[4]; /* reserve area */ 107 } xfs_flock64_t; 108 109 /* 110 * Output for XFS_IOC_FSGEOMETRY_V1 111 */ 112 struct xfs_fsop_geom_v1 { 113 __u32 blocksize; /* filesystem (data) block size */ 114 __u32 rtextsize; /* realtime extent size */ 115 __u32 agblocks; /* fsblocks in an AG */ 116 __u32 agcount; /* number of allocation groups */ 117 __u32 logblocks; /* fsblocks in the log */ 118 __u32 sectsize; /* (data) sector size, bytes */ 119 __u32 inodesize; /* inode size in bytes */ 120 __u32 imaxpct; /* max allowed inode space(%) */ 121 __u64 datablocks; /* fsblocks in data subvolume */ 122 __u64 rtblocks; /* fsblocks in realtime subvol */ 123 __u64 rtextents; /* rt extents in realtime subvol*/ 124 __u64 logstart; /* starting fsblock of the log */ 125 unsigned char uuid[16]; /* unique id of the filesystem */ 126 __u32 sunit; /* stripe unit, fsblocks */ 127 __u32 swidth; /* stripe width, fsblocks */ 128 __s32 version; /* structure version */ 129 __u32 flags; /* superblock version flags */ 130 __u32 logsectsize; /* log sector size, bytes */ 131 __u32 rtsectsize; /* realtime sector size, bytes */ 132 __u32 dirblocksize; /* directory block size, bytes */ 133 }; 134 135 /* 136 * Output for XFS_IOC_FSGEOMETRY_V4 137 */ 138 struct xfs_fsop_geom_v4 { 139 __u32 blocksize; /* filesystem (data) block size */ 140 __u32 rtextsize; /* realtime extent size */ 141 __u32 agblocks; /* fsblocks in an AG */ 142 __u32 agcount; /* number of allocation groups */ 143 __u32 logblocks; /* fsblocks in the log */ 144 __u32 sectsize; /* (data) sector size, bytes */ 145 __u32 inodesize; /* inode size in bytes */ 146 __u32 imaxpct; /* max allowed inode space(%) */ 147 __u64 datablocks; /* fsblocks in data subvolume */ 148 __u64 rtblocks; /* fsblocks in realtime subvol */ 149 __u64 rtextents; /* rt extents in realtime subvol*/ 150 __u64 logstart; /* starting fsblock of the log */ 151 unsigned char uuid[16]; /* unique id of the filesystem */ 152 __u32 sunit; /* stripe unit, fsblocks */ 153 __u32 swidth; /* stripe width, fsblocks */ 154 __s32 version; /* structure version */ 155 __u32 flags; /* superblock version flags */ 156 __u32 logsectsize; /* log sector size, bytes */ 157 __u32 rtsectsize; /* realtime sector size, bytes */ 158 __u32 dirblocksize; /* directory block size, bytes */ 159 __u32 logsunit; /* log stripe unit, bytes */ 160 }; 161 162 /* 163 * Output for XFS_IOC_FSGEOMETRY 164 */ 165 struct xfs_fsop_geom { 166 __u32 blocksize; /* filesystem (data) block size */ 167 __u32 rtextsize; /* realtime extent size */ 168 __u32 agblocks; /* fsblocks in an AG */ 169 __u32 agcount; /* number of allocation groups */ 170 __u32 logblocks; /* fsblocks in the log */ 171 __u32 sectsize; /* (data) sector size, bytes */ 172 __u32 inodesize; /* inode size in bytes */ 173 __u32 imaxpct; /* max allowed inode space(%) */ 174 __u64 datablocks; /* fsblocks in data subvolume */ 175 __u64 rtblocks; /* fsblocks in realtime subvol */ 176 __u64 rtextents; /* rt extents in realtime subvol*/ 177 __u64 logstart; /* starting fsblock of the log */ 178 unsigned char uuid[16]; /* unique id of the filesystem */ 179 __u32 sunit; /* stripe unit, fsblocks */ 180 __u32 swidth; /* stripe width, fsblocks */ 181 __s32 version; /* structure version */ 182 __u32 flags; /* superblock version flags */ 183 __u32 logsectsize; /* log sector size, bytes */ 184 __u32 rtsectsize; /* realtime sector size, bytes */ 185 __u32 dirblocksize; /* directory block size, bytes */ 186 __u32 logsunit; /* log stripe unit, bytes */ 187 uint32_t sick; /* o: unhealthy fs & rt metadata */ 188 uint32_t checked; /* o: checked fs & rt metadata */ 189 __u64 reserved[17]; /* reserved space */ 190 }; 191 192 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */ 193 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */ 194 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */ 195 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */ 196 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */ 197 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */ 198 199 /* Output for XFS_FS_COUNTS */ 200 typedef struct xfs_fsop_counts { 201 __u64 freedata; /* free data section blocks */ 202 __u64 freertx; /* free rt extents */ 203 __u64 freeino; /* free inodes */ 204 __u64 allocino; /* total allocated inodes */ 205 } xfs_fsop_counts_t; 206 207 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ 208 typedef struct xfs_fsop_resblks { 209 __u64 resblks; 210 __u64 resblks_avail; 211 } xfs_fsop_resblks_t; 212 213 #define XFS_FSOP_GEOM_VERSION 0 214 #define XFS_FSOP_GEOM_VERSION_V5 5 215 216 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */ 217 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */ 218 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */ 219 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */ 220 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */ 221 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */ 222 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */ 223 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */ 224 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */ 225 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */ 226 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */ 227 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */ 228 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */ 229 /* -- Do not use -- (1 << 13) SGI parent pointers */ 230 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */ 231 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */ 232 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */ 233 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */ 234 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */ 235 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */ 236 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */ 237 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */ 238 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ 239 #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */ 240 241 /* 242 * Minimum and maximum sizes need for growth checks. 243 * 244 * Block counts are in units of filesystem blocks, not basic blocks. 245 */ 246 #define XFS_MIN_AG_BLOCKS 64 247 #define XFS_MIN_LOG_BLOCKS 512ULL 248 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL) 249 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL) 250 251 /* 252 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than 253 * 16MB or larger than 1TB. 254 */ 255 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */ 256 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */ 257 #define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE) 258 #define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE) 259 260 #define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1)) 261 262 /* keep the maximum size under 2^31 by a small amount */ 263 #define XFS_MAX_LOG_BYTES \ 264 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES) 265 266 /* Used for sanity checks on superblock */ 267 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks) 268 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \ 269 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS) 270 271 /* 272 * Output for XFS_IOC_AG_GEOMETRY 273 */ 274 struct xfs_ag_geometry { 275 uint32_t ag_number; /* i/o: AG number */ 276 uint32_t ag_length; /* o: length in blocks */ 277 uint32_t ag_freeblks; /* o: free space */ 278 uint32_t ag_icount; /* o: inodes allocated */ 279 uint32_t ag_ifree; /* o: inodes free */ 280 uint32_t ag_sick; /* o: sick things in ag */ 281 uint32_t ag_checked; /* o: checked metadata in ag */ 282 uint32_t ag_flags; /* i/o: flags for this ag */ 283 uint64_t ag_reserved[12];/* o: zero */ 284 }; 285 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */ 286 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */ 287 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */ 288 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */ 289 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */ 290 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */ 291 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */ 292 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */ 293 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */ 294 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */ 295 296 /* 297 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT 298 */ 299 typedef struct xfs_growfs_data { 300 __u64 newblocks; /* new data subvol size, fsblocks */ 301 __u32 imaxpct; /* new inode space percentage limit */ 302 } xfs_growfs_data_t; 303 304 typedef struct xfs_growfs_log { 305 __u32 newblocks; /* new log size, fsblocks */ 306 __u32 isint; /* 1 if new log is internal */ 307 } xfs_growfs_log_t; 308 309 typedef struct xfs_growfs_rt { 310 __u64 newblocks; /* new realtime size, fsblocks */ 311 __u32 extsize; /* new realtime extent size, fsblocks */ 312 } xfs_growfs_rt_t; 313 314 315 /* 316 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE 317 */ 318 typedef struct xfs_bstime { 319 __kernel_long_t tv_sec; /* seconds */ 320 __s32 tv_nsec; /* and nanoseconds */ 321 } xfs_bstime_t; 322 323 struct xfs_bstat { 324 __u64 bs_ino; /* inode number */ 325 __u16 bs_mode; /* type and mode */ 326 __u16 bs_nlink; /* number of links */ 327 __u32 bs_uid; /* user id */ 328 __u32 bs_gid; /* group id */ 329 __u32 bs_rdev; /* device value */ 330 __s32 bs_blksize; /* block size */ 331 __s64 bs_size; /* file size */ 332 xfs_bstime_t bs_atime; /* access time */ 333 xfs_bstime_t bs_mtime; /* modify time */ 334 xfs_bstime_t bs_ctime; /* inode change time */ 335 int64_t bs_blocks; /* number of blocks */ 336 __u32 bs_xflags; /* extended flags */ 337 __s32 bs_extsize; /* extent size */ 338 __s32 bs_extents; /* number of extents */ 339 __u32 bs_gen; /* generation count */ 340 __u16 bs_projid_lo; /* lower part of project id */ 341 #define bs_projid bs_projid_lo /* (previously just bs_projid) */ 342 __u16 bs_forkoff; /* inode fork offset in bytes */ 343 __u16 bs_projid_hi; /* higher part of project id */ 344 uint16_t bs_sick; /* sick inode metadata */ 345 uint16_t bs_checked; /* checked inode metadata */ 346 unsigned char bs_pad[2]; /* pad space, unused */ 347 __u32 bs_cowextsize; /* cow extent size */ 348 __u32 bs_dmevmask; /* DMIG event mask */ 349 __u16 bs_dmstate; /* DMIG state info */ 350 __u16 bs_aextents; /* attribute number of extents */ 351 }; 352 353 /* New bulkstat structure that reports v5 features and fixes padding issues */ 354 struct xfs_bulkstat { 355 uint64_t bs_ino; /* inode number */ 356 uint64_t bs_size; /* file size */ 357 358 uint64_t bs_blocks; /* number of blocks */ 359 uint64_t bs_xflags; /* extended flags */ 360 361 int64_t bs_atime; /* access time, seconds */ 362 int64_t bs_mtime; /* modify time, seconds */ 363 364 int64_t bs_ctime; /* inode change time, seconds */ 365 int64_t bs_btime; /* creation time, seconds */ 366 367 uint32_t bs_gen; /* generation count */ 368 uint32_t bs_uid; /* user id */ 369 uint32_t bs_gid; /* group id */ 370 uint32_t bs_projectid; /* project id */ 371 372 uint32_t bs_atime_nsec; /* access time, nanoseconds */ 373 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */ 374 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */ 375 uint32_t bs_btime_nsec; /* creation time, nanoseconds */ 376 377 uint32_t bs_blksize; /* block size */ 378 uint32_t bs_rdev; /* device value */ 379 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */ 380 uint32_t bs_extsize_blks; /* extent size hint, blocks */ 381 382 uint32_t bs_nlink; /* number of links */ 383 uint32_t bs_extents; /* 32-bit data fork extent counter */ 384 uint32_t bs_aextents; /* attribute number of extents */ 385 uint16_t bs_version; /* structure version */ 386 uint16_t bs_forkoff; /* inode fork offset in bytes */ 387 388 uint16_t bs_sick; /* sick inode metadata */ 389 uint16_t bs_checked; /* checked inode metadata */ 390 uint16_t bs_mode; /* type and mode */ 391 uint16_t bs_pad2; /* zeroed */ 392 uint64_t bs_extents64; /* 64-bit data fork extent counter */ 393 394 uint64_t bs_pad[6]; /* zeroed */ 395 }; 396 397 #define XFS_BULKSTAT_VERSION_V1 (1) 398 #define XFS_BULKSTAT_VERSION_V5 (5) 399 400 /* bs_sick flags */ 401 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */ 402 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */ 403 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */ 404 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */ 405 #define XFS_BS_SICK_DIR (1 << 4) /* directory */ 406 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */ 407 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */ 408 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */ 409 410 /* 411 * Project quota id helpers (previously projid was 16bit only 412 * and using two 16bit values to hold new 32bit projid was chosen 413 * to retain compatibility with "old" filesystems). 414 */ 415 static inline uint32_t bstat_get_projid(const struct xfs_bstat * bs)416 bstat_get_projid(const struct xfs_bstat *bs) 417 { 418 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo; 419 } 420 421 /* 422 * The user-level BulkStat Request interface structure. 423 */ 424 struct xfs_fsop_bulkreq { 425 __u64 __user *lastip; /* last inode # pointer */ 426 __s32 icount; /* count of entries in buffer */ 427 void __user *ubuffer;/* user buffer for inode desc. */ 428 __s32 __user *ocount; /* output count pointer */ 429 }; 430 431 /* 432 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). 433 */ 434 struct xfs_inogrp { 435 __u64 xi_startino; /* starting inode number */ 436 __s32 xi_alloccount; /* # bits set in allocmask */ 437 __u64 xi_allocmask; /* mask of allocated inodes */ 438 }; 439 440 /* New inumbers structure that reports v5 features and fixes padding issues */ 441 struct xfs_inumbers { 442 uint64_t xi_startino; /* starting inode number */ 443 uint64_t xi_allocmask; /* mask of allocated inodes */ 444 uint8_t xi_alloccount; /* # bits set in allocmask */ 445 uint8_t xi_version; /* version */ 446 uint8_t xi_padding[6]; /* zero */ 447 }; 448 449 #define XFS_INUMBERS_VERSION_V1 (1) 450 #define XFS_INUMBERS_VERSION_V5 (5) 451 452 /* Header for bulk inode requests. */ 453 struct xfs_bulk_ireq { 454 uint64_t ino; /* I/O: start with this inode */ 455 uint32_t flags; /* I/O: operation flags */ 456 uint32_t icount; /* I: count of entries in buffer */ 457 uint32_t ocount; /* O: count of entries filled out */ 458 uint32_t agno; /* I: see comment for IREQ_AGNO */ 459 uint64_t reserved[5]; /* must be zero */ 460 }; 461 462 /* 463 * Only return results from the specified @agno. If @ino is zero, start 464 * with the first inode of @agno. 465 */ 466 #define XFS_BULK_IREQ_AGNO (1U << 0) 467 468 /* 469 * Return bulkstat information for a single inode, where @ino value is a 470 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_* 471 * values below. Not compatible with XFS_BULK_IREQ_AGNO. 472 */ 473 #define XFS_BULK_IREQ_SPECIAL (1U << 1) 474 475 /* 476 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign 477 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use 478 * xfs_bulkstat->bs_extents for returning data fork extent count and set 479 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and 480 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than 481 * XFS_MAX_EXTCNT_DATA_FORK_OLD. 482 */ 483 #define XFS_BULK_IREQ_NREXT64 (1U << 2) 484 485 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \ 486 XFS_BULK_IREQ_SPECIAL | \ 487 XFS_BULK_IREQ_NREXT64) 488 489 /* Operate on the root directory inode. */ 490 #define XFS_BULK_IREQ_SPECIAL_ROOT (1) 491 492 /* 493 * ioctl structures for v5 bulkstat and inumbers requests 494 */ 495 struct xfs_bulkstat_req { 496 struct xfs_bulk_ireq hdr; 497 struct xfs_bulkstat bulkstat[]; 498 }; 499 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \ 500 (nr) * sizeof(struct xfs_bulkstat)) 501 502 struct xfs_inumbers_req { 503 struct xfs_bulk_ireq hdr; 504 struct xfs_inumbers inumbers[]; 505 }; 506 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \ 507 (nr) * sizeof(struct xfs_inumbers)) 508 509 /* 510 * Error injection. 511 */ 512 typedef struct xfs_error_injection { 513 __s32 fd; 514 __s32 errtag; 515 } xfs_error_injection_t; 516 517 518 /* 519 * Speculative preallocation trimming. 520 */ 521 #define XFS_EOFBLOCKS_VERSION 1 522 struct xfs_fs_eofblocks { 523 __u32 eof_version; 524 __u32 eof_flags; 525 uid_t eof_uid; 526 gid_t eof_gid; 527 prid_t eof_prid; 528 __u32 pad32; 529 __u64 eof_min_file_size; 530 __u64 pad64[12]; 531 }; 532 533 /* eof_flags values */ 534 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ 535 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */ 536 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */ 537 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */ 538 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */ 539 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm; 540 * kernel only, not included in 541 * valid mask */ 542 #define XFS_EOF_FLAGS_VALID \ 543 (XFS_EOF_FLAGS_SYNC | \ 544 XFS_EOF_FLAGS_UID | \ 545 XFS_EOF_FLAGS_GID | \ 546 XFS_EOF_FLAGS_PRID | \ 547 XFS_EOF_FLAGS_MINFILESIZE) 548 549 550 /* 551 * The user-level Handle Request interface structure. 552 */ 553 typedef struct xfs_fsop_handlereq { 554 __u32 fd; /* fd for FD_TO_HANDLE */ 555 void __user *path; /* user pathname */ 556 __u32 oflags; /* open flags */ 557 void __user *ihandle;/* user supplied handle */ 558 __u32 ihandlen; /* user supplied length */ 559 void __user *ohandle;/* user buffer for handle */ 560 __u32 __user *ohandlen;/* user buffer length */ 561 } xfs_fsop_handlereq_t; 562 563 /* 564 * Compound structures for passing args through Handle Request interfaces 565 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle 566 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE 567 */ 568 569 /* 570 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface. 571 * 572 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix. 573 */ 574 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */ 575 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */ 576 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */ 577 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */ 578 579 typedef struct xfs_attrlist_cursor { 580 __u32 opaque[4]; 581 } xfs_attrlist_cursor_t; 582 583 /* 584 * Define how lists of attribute names are returned to userspace from the 585 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the 586 * beginning of the returned buffer, and a each entry in al_offset contains the 587 * relative offset of an xfs_attrlist_ent containing the actual entry. 588 * 589 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and 590 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr. 591 */ 592 struct xfs_attrlist { 593 __s32 al_count; /* number of entries in attrlist */ 594 __s32 al_more; /* T/F: more attrs (do call again) */ 595 __s32 al_offset[]; /* byte offsets of attrs [var-sized] */ 596 }; 597 598 struct xfs_attrlist_ent { /* data from attr_list() */ 599 __u32 a_valuelen; /* number bytes in value of attr */ 600 char a_name[]; /* attr name (NULL terminated) */ 601 }; 602 603 typedef struct xfs_fsop_attrlist_handlereq { 604 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 605 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ 606 __u32 flags; /* which namespace to use */ 607 __u32 buflen; /* length of buffer supplied */ 608 void __user *buffer; /* returned names */ 609 } xfs_fsop_attrlist_handlereq_t; 610 611 typedef struct xfs_attr_multiop { 612 __u32 am_opcode; 613 #define ATTR_OP_GET 1 /* return the indicated attr's value */ 614 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */ 615 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */ 616 __s32 am_error; 617 void __user *am_attrname; 618 void __user *am_attrvalue; 619 __u32 am_length; 620 __u32 am_flags; /* XFS_IOC_ATTR_* */ 621 } xfs_attr_multiop_t; 622 623 typedef struct xfs_fsop_attrmulti_handlereq { 624 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 625 __u32 opcount;/* count of following multiop */ 626 struct xfs_attr_multiop __user *ops; /* attr_multi data */ 627 } xfs_fsop_attrmulti_handlereq_t; 628 629 /* 630 * per machine unique filesystem identifier types. 631 */ 632 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */ 633 634 typedef struct xfs_fid { 635 __u16 fid_len; /* length of remainder */ 636 __u16 fid_pad; 637 __u32 fid_gen; /* generation number */ 638 __u64 fid_ino; /* 64 bits inode number */ 639 } xfs_fid_t; 640 641 typedef struct xfs_handle { 642 union { 643 __s64 align; /* force alignment of ha_fid */ 644 xfs_fsid_t _ha_fsid; /* unique file system identifier */ 645 } ha_u; 646 xfs_fid_t ha_fid; /* file system specific file ID */ 647 } xfs_handle_t; 648 #define ha_fsid ha_u._ha_fsid 649 650 /* 651 * Structure passed to XFS_IOC_SWAPEXT 652 */ 653 typedef struct xfs_swapext 654 { 655 int64_t sx_version; /* version */ 656 #define XFS_SX_VERSION 0 657 int64_t sx_fdtarget; /* fd of target file */ 658 int64_t sx_fdtmp; /* fd of tmp file */ 659 xfs_off_t sx_offset; /* offset into file */ 660 xfs_off_t sx_length; /* leng from offset */ 661 char sx_pad[16]; /* pad space, unused */ 662 struct xfs_bstat sx_stat; /* stat of target b4 copy */ 663 } xfs_swapext_t; 664 665 /* 666 * Flags for going down operation 667 */ 668 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */ 669 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ 670 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ 671 672 /* metadata scrubbing */ 673 struct xfs_scrub_metadata { 674 __u32 sm_type; /* What to check? */ 675 __u32 sm_flags; /* flags; see below. */ 676 __u64 sm_ino; /* inode number. */ 677 __u32 sm_gen; /* inode generation. */ 678 __u32 sm_agno; /* ag number. */ 679 __u64 sm_reserved[5]; /* pad to 64 bytes */ 680 }; 681 682 /* 683 * Metadata types and flags for scrub operation. 684 */ 685 686 /* Scrub subcommands. */ 687 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */ 688 #define XFS_SCRUB_TYPE_SB 1 /* superblock */ 689 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */ 690 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */ 691 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */ 692 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */ 693 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */ 694 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */ 695 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */ 696 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */ 697 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */ 698 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */ 699 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */ 700 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */ 701 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */ 702 #define XFS_SCRUB_TYPE_DIR 15 /* directory */ 703 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ 704 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ 705 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ 706 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ 707 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ 708 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */ 709 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */ 710 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */ 711 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */ 712 713 /* Number of scrub subcommands. */ 714 #define XFS_SCRUB_TYPE_NR 25 715 716 /* i: Repair this metadata. */ 717 #define XFS_SCRUB_IFLAG_REPAIR (1u << 0) 718 719 /* o: Metadata object needs repair. */ 720 #define XFS_SCRUB_OFLAG_CORRUPT (1u << 1) 721 722 /* 723 * o: Metadata object could be optimized. It's not corrupt, but 724 * we could improve on it somehow. 725 */ 726 #define XFS_SCRUB_OFLAG_PREEN (1u << 2) 727 728 /* o: Cross-referencing failed. */ 729 #define XFS_SCRUB_OFLAG_XFAIL (1u << 3) 730 731 /* o: Metadata object disagrees with cross-referenced metadata. */ 732 #define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4) 733 734 /* o: Scan was not complete. */ 735 #define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5) 736 737 /* o: Metadata object looked funny but isn't corrupt. */ 738 #define XFS_SCRUB_OFLAG_WARNING (1u << 6) 739 740 /* 741 * o: IFLAG_REPAIR was set but metadata object did not need fixing or 742 * optimization and has therefore not been altered. 743 */ 744 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7) 745 746 /* i: Rebuild the data structure. */ 747 #define XFS_SCRUB_IFLAG_FORCE_REBUILD (1u << 8) 748 749 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \ 750 XFS_SCRUB_IFLAG_FORCE_REBUILD) 751 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \ 752 XFS_SCRUB_OFLAG_PREEN | \ 753 XFS_SCRUB_OFLAG_XFAIL | \ 754 XFS_SCRUB_OFLAG_XCORRUPT | \ 755 XFS_SCRUB_OFLAG_INCOMPLETE | \ 756 XFS_SCRUB_OFLAG_WARNING | \ 757 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED) 758 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT) 759 760 /* 761 * ioctl limits 762 */ 763 #ifdef XATTR_LIST_MAX 764 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX 765 #else 766 # define XFS_XATTR_LIST_MAX 65536 767 #endif 768 769 770 /* 771 * ioctl commands that are used by Linux filesystems 772 */ 773 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS 774 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS 775 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION 776 777 /* 778 * ioctl commands that replace IRIX fcntl()'s 779 * For 'documentation' purposed more than anything else, 780 * the "cmd #" field reflects the IRIX fcntl number. 781 */ 782 /* XFS_IOC_ALLOCSP ------- deprecated 10 */ 783 /* XFS_IOC_FREESP -------- deprecated 11 */ 784 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr) 785 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 786 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 787 /* XFS_IOC_ALLOCSP64 ----- deprecated 36 */ 788 /* XFS_IOC_FREESP64 ------ deprecated 37 */ 789 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) 790 /* XFS_IOC_FSSETDM ------- deprecated 39 */ 791 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64) 792 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64) 793 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64) 794 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64) 795 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap) 796 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr) 797 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */ 798 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ 799 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) 800 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64) 801 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks) 802 /* XFS_IOC_GETFSMAP ------ hoisted 59 */ 803 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata) 804 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry) 805 806 /* 807 * ioctl commands that replace IRIX syssgi()'s 808 */ 809 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1) 810 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq) 811 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq) 812 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq) 813 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq) 814 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq) 815 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq) 816 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq) 817 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq) 818 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext) 819 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data) 820 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log) 821 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt) 822 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts) 823 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks) 824 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks) 825 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection) 826 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection) 827 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */ 828 829 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */ 830 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */ 831 832 /* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */ 833 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq) 834 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq) 835 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4) 836 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t) 837 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom) 838 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req) 839 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req) 840 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */ 841 842 843 #ifndef HAVE_BBMACROS 844 /* 845 * Block I/O parameterization. A basic block (BB) is the lowest size of 846 * filesystem allocation, and must equal 512. Length units given to bio 847 * routines are in BB's. 848 */ 849 #define BBSHIFT 9 850 #define BBSIZE (1<<BBSHIFT) 851 #define BBMASK (BBSIZE-1) 852 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT) 853 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT) 854 #define BBTOB(bbs) ((bbs) << BBSHIFT) 855 #endif 856 857 #endif /* __XFS_FS_H__ */ 858