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