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 * Structure for XFS_IOC_FSSETDM. 97 * For use by backup and restore programs to set the XFS on-disk inode 98 * fields di_dmevmask and di_dmstate. These must be set to exactly and 99 * only values previously obtained via xfs_bulkstat! (Specifically the 100 * struct xfs_bstat fields bs_dmevmask and bs_dmstate.) 101 */ 102 #ifndef HAVE_FSDMIDATA 103 struct fsdmidata { 104 __u32 fsd_dmevmask; /* corresponds to di_dmevmask */ 105 __u16 fsd_padding; 106 __u16 fsd_dmstate; /* corresponds to di_dmstate */ 107 }; 108 #endif 109 110 /* 111 * File segment locking set data type for 64 bit access. 112 * Also used for all the RESV/FREE interfaces. 113 */ 114 typedef struct xfs_flock64 { 115 __s16 l_type; 116 __s16 l_whence; 117 __s64 l_start; 118 __s64 l_len; /* len == 0 means until end of file */ 119 __s32 l_sysid; 120 __u32 l_pid; 121 __s32 l_pad[4]; /* reserve area */ 122 } xfs_flock64_t; 123 124 /* 125 * Output for XFS_IOC_FSGEOMETRY_V1 126 */ 127 struct xfs_fsop_geom_v1 { 128 __u32 blocksize; /* filesystem (data) block size */ 129 __u32 rtextsize; /* realtime extent size */ 130 __u32 agblocks; /* fsblocks in an AG */ 131 __u32 agcount; /* number of allocation groups */ 132 __u32 logblocks; /* fsblocks in the log */ 133 __u32 sectsize; /* (data) sector size, bytes */ 134 __u32 inodesize; /* inode size in bytes */ 135 __u32 imaxpct; /* max allowed inode space(%) */ 136 __u64 datablocks; /* fsblocks in data subvolume */ 137 __u64 rtblocks; /* fsblocks in realtime subvol */ 138 __u64 rtextents; /* rt extents in realtime subvol*/ 139 __u64 logstart; /* starting fsblock of the log */ 140 unsigned char uuid[16]; /* unique id of the filesystem */ 141 __u32 sunit; /* stripe unit, fsblocks */ 142 __u32 swidth; /* stripe width, fsblocks */ 143 __s32 version; /* structure version */ 144 __u32 flags; /* superblock version flags */ 145 __u32 logsectsize; /* log sector size, bytes */ 146 __u32 rtsectsize; /* realtime sector size, bytes */ 147 __u32 dirblocksize; /* directory block size, bytes */ 148 }; 149 150 /* 151 * Output for XFS_IOC_FSGEOMETRY_V4 152 */ 153 struct xfs_fsop_geom_v4 { 154 __u32 blocksize; /* filesystem (data) block size */ 155 __u32 rtextsize; /* realtime extent size */ 156 __u32 agblocks; /* fsblocks in an AG */ 157 __u32 agcount; /* number of allocation groups */ 158 __u32 logblocks; /* fsblocks in the log */ 159 __u32 sectsize; /* (data) sector size, bytes */ 160 __u32 inodesize; /* inode size in bytes */ 161 __u32 imaxpct; /* max allowed inode space(%) */ 162 __u64 datablocks; /* fsblocks in data subvolume */ 163 __u64 rtblocks; /* fsblocks in realtime subvol */ 164 __u64 rtextents; /* rt extents in realtime subvol*/ 165 __u64 logstart; /* starting fsblock of the log */ 166 unsigned char uuid[16]; /* unique id of the filesystem */ 167 __u32 sunit; /* stripe unit, fsblocks */ 168 __u32 swidth; /* stripe width, fsblocks */ 169 __s32 version; /* structure version */ 170 __u32 flags; /* superblock version flags */ 171 __u32 logsectsize; /* log sector size, bytes */ 172 __u32 rtsectsize; /* realtime sector size, bytes */ 173 __u32 dirblocksize; /* directory block size, bytes */ 174 __u32 logsunit; /* log stripe unit, bytes */ 175 }; 176 177 /* 178 * Output for XFS_IOC_FSGEOMETRY 179 */ 180 struct xfs_fsop_geom { 181 __u32 blocksize; /* filesystem (data) block size */ 182 __u32 rtextsize; /* realtime extent size */ 183 __u32 agblocks; /* fsblocks in an AG */ 184 __u32 agcount; /* number of allocation groups */ 185 __u32 logblocks; /* fsblocks in the log */ 186 __u32 sectsize; /* (data) sector size, bytes */ 187 __u32 inodesize; /* inode size in bytes */ 188 __u32 imaxpct; /* max allowed inode space(%) */ 189 __u64 datablocks; /* fsblocks in data subvolume */ 190 __u64 rtblocks; /* fsblocks in realtime subvol */ 191 __u64 rtextents; /* rt extents in realtime subvol*/ 192 __u64 logstart; /* starting fsblock of the log */ 193 unsigned char uuid[16]; /* unique id of the filesystem */ 194 __u32 sunit; /* stripe unit, fsblocks */ 195 __u32 swidth; /* stripe width, fsblocks */ 196 __s32 version; /* structure version */ 197 __u32 flags; /* superblock version flags */ 198 __u32 logsectsize; /* log sector size, bytes */ 199 __u32 rtsectsize; /* realtime sector size, bytes */ 200 __u32 dirblocksize; /* directory block size, bytes */ 201 __u32 logsunit; /* log stripe unit, bytes */ 202 uint32_t sick; /* o: unhealthy fs & rt metadata */ 203 uint32_t checked; /* o: checked fs & rt metadata */ 204 __u64 reserved[17]; /* reserved space */ 205 }; 206 207 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */ 208 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */ 209 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */ 210 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */ 211 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */ 212 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */ 213 214 /* Output for XFS_FS_COUNTS */ 215 typedef struct xfs_fsop_counts { 216 __u64 freedata; /* free data section blocks */ 217 __u64 freertx; /* free rt extents */ 218 __u64 freeino; /* free inodes */ 219 __u64 allocino; /* total allocated inodes */ 220 } xfs_fsop_counts_t; 221 222 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ 223 typedef struct xfs_fsop_resblks { 224 __u64 resblks; 225 __u64 resblks_avail; 226 } xfs_fsop_resblks_t; 227 228 #define XFS_FSOP_GEOM_VERSION 0 229 #define XFS_FSOP_GEOM_VERSION_V5 5 230 231 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */ 232 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */ 233 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */ 234 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */ 235 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */ 236 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */ 237 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */ 238 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */ 239 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */ 240 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */ 241 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */ 242 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */ 243 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */ 244 /* -- Do not use -- (1 << 13) SGI parent pointers */ 245 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */ 246 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */ 247 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */ 248 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */ 249 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */ 250 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */ 251 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */ 252 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */ 253 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ 254 255 /* 256 * Minimum and maximum sizes need for growth checks. 257 * 258 * Block counts are in units of filesystem blocks, not basic blocks. 259 */ 260 #define XFS_MIN_AG_BLOCKS 64 261 #define XFS_MIN_LOG_BLOCKS 512ULL 262 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL) 263 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL) 264 265 /* 266 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than 267 * 16MB or larger than 1TB. 268 */ 269 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */ 270 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */ 271 272 /* keep the maximum size under 2^31 by a small amount */ 273 #define XFS_MAX_LOG_BYTES \ 274 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES) 275 276 /* Used for sanity checks on superblock */ 277 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks) 278 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \ 279 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS) 280 281 /* 282 * Output for XFS_IOC_AG_GEOMETRY 283 */ 284 struct xfs_ag_geometry { 285 uint32_t ag_number; /* i/o: AG number */ 286 uint32_t ag_length; /* o: length in blocks */ 287 uint32_t ag_freeblks; /* o: free space */ 288 uint32_t ag_icount; /* o: inodes allocated */ 289 uint32_t ag_ifree; /* o: inodes free */ 290 uint32_t ag_sick; /* o: sick things in ag */ 291 uint32_t ag_checked; /* o: checked metadata in ag */ 292 uint32_t ag_flags; /* i/o: flags for this ag */ 293 uint64_t ag_reserved[12];/* o: zero */ 294 }; 295 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */ 296 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */ 297 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */ 298 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */ 299 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */ 300 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */ 301 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */ 302 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */ 303 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */ 304 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */ 305 306 /* 307 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT 308 */ 309 typedef struct xfs_growfs_data { 310 __u64 newblocks; /* new data subvol size, fsblocks */ 311 __u32 imaxpct; /* new inode space percentage limit */ 312 } xfs_growfs_data_t; 313 314 typedef struct xfs_growfs_log { 315 __u32 newblocks; /* new log size, fsblocks */ 316 __u32 isint; /* 1 if new log is internal */ 317 } xfs_growfs_log_t; 318 319 typedef struct xfs_growfs_rt { 320 __u64 newblocks; /* new realtime size, fsblocks */ 321 __u32 extsize; /* new realtime extent size, fsblocks */ 322 } xfs_growfs_rt_t; 323 324 325 /* 326 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE 327 */ 328 typedef struct xfs_bstime { 329 __kernel_long_t tv_sec; /* seconds */ 330 __s32 tv_nsec; /* and nanoseconds */ 331 } xfs_bstime_t; 332 333 struct xfs_bstat { 334 __u64 bs_ino; /* inode number */ 335 __u16 bs_mode; /* type and mode */ 336 __u16 bs_nlink; /* number of links */ 337 __u32 bs_uid; /* user id */ 338 __u32 bs_gid; /* group id */ 339 __u32 bs_rdev; /* device value */ 340 __s32 bs_blksize; /* block size */ 341 __s64 bs_size; /* file size */ 342 xfs_bstime_t bs_atime; /* access time */ 343 xfs_bstime_t bs_mtime; /* modify time */ 344 xfs_bstime_t bs_ctime; /* inode change time */ 345 int64_t bs_blocks; /* number of blocks */ 346 __u32 bs_xflags; /* extended flags */ 347 __s32 bs_extsize; /* extent size */ 348 __s32 bs_extents; /* number of extents */ 349 __u32 bs_gen; /* generation count */ 350 __u16 bs_projid_lo; /* lower part of project id */ 351 #define bs_projid bs_projid_lo /* (previously just bs_projid) */ 352 __u16 bs_forkoff; /* inode fork offset in bytes */ 353 __u16 bs_projid_hi; /* higher part of project id */ 354 uint16_t bs_sick; /* sick inode metadata */ 355 uint16_t bs_checked; /* checked inode metadata */ 356 unsigned char bs_pad[2]; /* pad space, unused */ 357 __u32 bs_cowextsize; /* cow extent size */ 358 __u32 bs_dmevmask; /* DMIG event mask */ 359 __u16 bs_dmstate; /* DMIG state info */ 360 __u16 bs_aextents; /* attribute number of extents */ 361 }; 362 363 /* New bulkstat structure that reports v5 features and fixes padding issues */ 364 struct xfs_bulkstat { 365 uint64_t bs_ino; /* inode number */ 366 uint64_t bs_size; /* file size */ 367 368 uint64_t bs_blocks; /* number of blocks */ 369 uint64_t bs_xflags; /* extended flags */ 370 371 int64_t bs_atime; /* access time, seconds */ 372 int64_t bs_mtime; /* modify time, seconds */ 373 374 int64_t bs_ctime; /* inode change time, seconds */ 375 int64_t bs_btime; /* creation time, seconds */ 376 377 uint32_t bs_gen; /* generation count */ 378 uint32_t bs_uid; /* user id */ 379 uint32_t bs_gid; /* group id */ 380 uint32_t bs_projectid; /* project id */ 381 382 uint32_t bs_atime_nsec; /* access time, nanoseconds */ 383 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */ 384 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */ 385 uint32_t bs_btime_nsec; /* creation time, nanoseconds */ 386 387 uint32_t bs_blksize; /* block size */ 388 uint32_t bs_rdev; /* device value */ 389 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */ 390 uint32_t bs_extsize_blks; /* extent size hint, blocks */ 391 392 uint32_t bs_nlink; /* number of links */ 393 uint32_t bs_extents; /* number of extents */ 394 uint32_t bs_aextents; /* attribute number of extents */ 395 uint16_t bs_version; /* structure version */ 396 uint16_t bs_forkoff; /* inode fork offset in bytes */ 397 398 uint16_t bs_sick; /* sick inode metadata */ 399 uint16_t bs_checked; /* checked inode metadata */ 400 uint16_t bs_mode; /* type and mode */ 401 uint16_t bs_pad2; /* zeroed */ 402 403 uint64_t bs_pad[7]; /* zeroed */ 404 }; 405 406 #define XFS_BULKSTAT_VERSION_V1 (1) 407 #define XFS_BULKSTAT_VERSION_V5 (5) 408 409 /* bs_sick flags */ 410 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */ 411 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */ 412 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */ 413 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */ 414 #define XFS_BS_SICK_DIR (1 << 4) /* directory */ 415 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */ 416 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */ 417 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */ 418 419 /* 420 * Project quota id helpers (previously projid was 16bit only 421 * and using two 16bit values to hold new 32bit projid was chosen 422 * to retain compatibility with "old" filesystems). 423 */ 424 static inline uint32_t 425 bstat_get_projid(const struct xfs_bstat *bs) 426 { 427 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo; 428 } 429 430 /* 431 * The user-level BulkStat Request interface structure. 432 */ 433 struct xfs_fsop_bulkreq { 434 __u64 __user *lastip; /* last inode # pointer */ 435 __s32 icount; /* count of entries in buffer */ 436 void __user *ubuffer;/* user buffer for inode desc. */ 437 __s32 __user *ocount; /* output count pointer */ 438 }; 439 440 /* 441 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). 442 */ 443 struct xfs_inogrp { 444 __u64 xi_startino; /* starting inode number */ 445 __s32 xi_alloccount; /* # bits set in allocmask */ 446 __u64 xi_allocmask; /* mask of allocated inodes */ 447 }; 448 449 /* New inumbers structure that reports v5 features and fixes padding issues */ 450 struct xfs_inumbers { 451 uint64_t xi_startino; /* starting inode number */ 452 uint64_t xi_allocmask; /* mask of allocated inodes */ 453 uint8_t xi_alloccount; /* # bits set in allocmask */ 454 uint8_t xi_version; /* version */ 455 uint8_t xi_padding[6]; /* zero */ 456 }; 457 458 #define XFS_INUMBERS_VERSION_V1 (1) 459 #define XFS_INUMBERS_VERSION_V5 (5) 460 461 /* Header for bulk inode requests. */ 462 struct xfs_bulk_ireq { 463 uint64_t ino; /* I/O: start with this inode */ 464 uint32_t flags; /* I/O: operation flags */ 465 uint32_t icount; /* I: count of entries in buffer */ 466 uint32_t ocount; /* O: count of entries filled out */ 467 uint32_t agno; /* I: see comment for IREQ_AGNO */ 468 uint64_t reserved[5]; /* must be zero */ 469 }; 470 471 /* 472 * Only return results from the specified @agno. If @ino is zero, start 473 * with the first inode of @agno. 474 */ 475 #define XFS_BULK_IREQ_AGNO (1 << 0) 476 477 /* 478 * Return bulkstat information for a single inode, where @ino value is a 479 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_* 480 * values below. Not compatible with XFS_BULK_IREQ_AGNO. 481 */ 482 #define XFS_BULK_IREQ_SPECIAL (1 << 1) 483 484 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \ 485 XFS_BULK_IREQ_SPECIAL) 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_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle 564 * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and 565 * XFS_IOC_ATTRMULTI_BY_HANDLE 566 */ 567 568 typedef struct xfs_fsop_setdm_handlereq { 569 struct xfs_fsop_handlereq hreq; /* handle information */ 570 struct fsdmidata __user *data; /* DMAPI data */ 571 } xfs_fsop_setdm_handlereq_t; 572 573 /* 574 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface. 575 * 576 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix. 577 */ 578 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */ 579 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */ 580 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */ 581 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */ 582 583 typedef struct xfs_attrlist_cursor { 584 __u32 opaque[4]; 585 } xfs_attrlist_cursor_t; 586 587 /* 588 * Define how lists of attribute names are returned to userspace from the 589 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the 590 * beginning of the returned buffer, and a each entry in al_offset contains the 591 * relative offset of an xfs_attrlist_ent containing the actual entry. 592 * 593 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and 594 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr. 595 */ 596 struct xfs_attrlist { 597 __s32 al_count; /* number of entries in attrlist */ 598 __s32 al_more; /* T/F: more attrs (do call again) */ 599 __s32 al_offset[1]; /* byte offsets of attrs [var-sized] */ 600 }; 601 602 struct xfs_attrlist_ent { /* data from attr_list() */ 603 __u32 a_valuelen; /* number bytes in value of attr */ 604 char a_name[1]; /* attr name (NULL terminated) */ 605 }; 606 607 typedef struct xfs_fsop_attrlist_handlereq { 608 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 609 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ 610 __u32 flags; /* which namespace to use */ 611 __u32 buflen; /* length of buffer supplied */ 612 void __user *buffer; /* returned names */ 613 } xfs_fsop_attrlist_handlereq_t; 614 615 typedef struct xfs_attr_multiop { 616 __u32 am_opcode; 617 #define ATTR_OP_GET 1 /* return the indicated attr's value */ 618 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */ 619 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */ 620 __s32 am_error; 621 void __user *am_attrname; 622 void __user *am_attrvalue; 623 __u32 am_length; 624 __u32 am_flags; /* XFS_IOC_ATTR_* */ 625 } xfs_attr_multiop_t; 626 627 typedef struct xfs_fsop_attrmulti_handlereq { 628 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 629 __u32 opcount;/* count of following multiop */ 630 struct xfs_attr_multiop __user *ops; /* attr_multi data */ 631 } xfs_fsop_attrmulti_handlereq_t; 632 633 /* 634 * per machine unique filesystem identifier types. 635 */ 636 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */ 637 638 typedef struct xfs_fid { 639 __u16 fid_len; /* length of remainder */ 640 __u16 fid_pad; 641 __u32 fid_gen; /* generation number */ 642 __u64 fid_ino; /* 64 bits inode number */ 643 } xfs_fid_t; 644 645 typedef struct xfs_handle { 646 union { 647 __s64 align; /* force alignment of ha_fid */ 648 xfs_fsid_t _ha_fsid; /* unique file system identifier */ 649 } ha_u; 650 xfs_fid_t ha_fid; /* file system specific file ID */ 651 } xfs_handle_t; 652 #define ha_fsid ha_u._ha_fsid 653 654 /* 655 * Structure passed to XFS_IOC_SWAPEXT 656 */ 657 typedef struct xfs_swapext 658 { 659 int64_t sx_version; /* version */ 660 #define XFS_SX_VERSION 0 661 int64_t sx_fdtarget; /* fd of target file */ 662 int64_t sx_fdtmp; /* fd of tmp file */ 663 xfs_off_t sx_offset; /* offset into file */ 664 xfs_off_t sx_length; /* leng from offset */ 665 char sx_pad[16]; /* pad space, unused */ 666 struct xfs_bstat sx_stat; /* stat of target b4 copy */ 667 } xfs_swapext_t; 668 669 /* 670 * Flags for going down operation 671 */ 672 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */ 673 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ 674 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ 675 676 /* metadata scrubbing */ 677 struct xfs_scrub_metadata { 678 __u32 sm_type; /* What to check? */ 679 __u32 sm_flags; /* flags; see below. */ 680 __u64 sm_ino; /* inode number. */ 681 __u32 sm_gen; /* inode generation. */ 682 __u32 sm_agno; /* ag number. */ 683 __u64 sm_reserved[5]; /* pad to 64 bytes */ 684 }; 685 686 /* 687 * Metadata types and flags for scrub operation. 688 */ 689 690 /* Scrub subcommands. */ 691 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */ 692 #define XFS_SCRUB_TYPE_SB 1 /* superblock */ 693 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */ 694 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */ 695 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */ 696 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */ 697 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */ 698 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */ 699 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */ 700 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */ 701 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */ 702 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */ 703 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */ 704 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */ 705 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */ 706 #define XFS_SCRUB_TYPE_DIR 15 /* directory */ 707 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ 708 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ 709 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ 710 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ 711 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ 712 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */ 713 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */ 714 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */ 715 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */ 716 717 /* Number of scrub subcommands. */ 718 #define XFS_SCRUB_TYPE_NR 25 719 720 /* i: Repair this metadata. */ 721 #define XFS_SCRUB_IFLAG_REPAIR (1 << 0) 722 723 /* o: Metadata object needs repair. */ 724 #define XFS_SCRUB_OFLAG_CORRUPT (1 << 1) 725 726 /* 727 * o: Metadata object could be optimized. It's not corrupt, but 728 * we could improve on it somehow. 729 */ 730 #define XFS_SCRUB_OFLAG_PREEN (1 << 2) 731 732 /* o: Cross-referencing failed. */ 733 #define XFS_SCRUB_OFLAG_XFAIL (1 << 3) 734 735 /* o: Metadata object disagrees with cross-referenced metadata. */ 736 #define XFS_SCRUB_OFLAG_XCORRUPT (1 << 4) 737 738 /* o: Scan was not complete. */ 739 #define XFS_SCRUB_OFLAG_INCOMPLETE (1 << 5) 740 741 /* o: Metadata object looked funny but isn't corrupt. */ 742 #define XFS_SCRUB_OFLAG_WARNING (1 << 6) 743 744 /* 745 * o: IFLAG_REPAIR was set but metadata object did not need fixing or 746 * optimization and has therefore not been altered. 747 */ 748 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1 << 7) 749 750 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR) 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 #define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64) 783 #define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64) 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 #define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64) 788 #define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64) 789 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) 790 #define XFS_IOC_FSSETDM _IOW ('X', 39, struct fsdmidata) 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 #define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq) 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