root/fs/xfs/libxfs/xfs_fs.h

/* [<][>][^][v][top][bottom][index][help] */

INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. bstat_get_projid

   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     /* Do not generate DMAPI read event  */
  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 
 253 /*
 254  * Minimum and maximum sizes need for growth checks.
 255  *
 256  * Block counts are in units of filesystem blocks, not basic blocks.
 257  */
 258 #define XFS_MIN_AG_BLOCKS       64
 259 #define XFS_MIN_LOG_BLOCKS      512ULL
 260 #define XFS_MAX_LOG_BLOCKS      (1024 * 1024ULL)
 261 #define XFS_MIN_LOG_BYTES       (10 * 1024 * 1024ULL)
 262 
 263 /*
 264  * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
 265  * 16MB or larger than 1TB.
 266  */
 267 #define XFS_MIN_AG_BYTES        (1ULL << 24)    /* 16 MB */
 268 #define XFS_MAX_AG_BYTES        (1ULL << 40)    /* 1 TB */
 269 
 270 /* keep the maximum size under 2^31 by a small amount */
 271 #define XFS_MAX_LOG_BYTES \
 272         ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
 273 
 274 /* Used for sanity checks on superblock */
 275 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
 276 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) *     \
 277                          (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
 278 
 279 /*
 280  * Output for XFS_IOC_AG_GEOMETRY
 281  */
 282 struct xfs_ag_geometry {
 283         uint32_t        ag_number;      /* i/o: AG number */
 284         uint32_t        ag_length;      /* o: length in blocks */
 285         uint32_t        ag_freeblks;    /* o: free space */
 286         uint32_t        ag_icount;      /* o: inodes allocated */
 287         uint32_t        ag_ifree;       /* o: inodes free */
 288         uint32_t        ag_sick;        /* o: sick things in ag */
 289         uint32_t        ag_checked;     /* o: checked metadata in ag */
 290         uint32_t        ag_flags;       /* i/o: flags for this ag */
 291         uint64_t        ag_reserved[12];/* o: zero */
 292 };
 293 #define XFS_AG_GEOM_SICK_SB     (1 << 0)  /* superblock */
 294 #define XFS_AG_GEOM_SICK_AGF    (1 << 1)  /* AGF header */
 295 #define XFS_AG_GEOM_SICK_AGFL   (1 << 2)  /* AGFL header */
 296 #define XFS_AG_GEOM_SICK_AGI    (1 << 3)  /* AGI header */
 297 #define XFS_AG_GEOM_SICK_BNOBT  (1 << 4)  /* free space by block */
 298 #define XFS_AG_GEOM_SICK_CNTBT  (1 << 5)  /* free space by length */
 299 #define XFS_AG_GEOM_SICK_INOBT  (1 << 6)  /* inode index */
 300 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7)  /* free inode index */
 301 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8)  /* reverse mappings */
 302 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9)  /* reference counts */
 303 
 304 /*
 305  * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
 306  */
 307 typedef struct xfs_growfs_data {
 308         __u64           newblocks;      /* new data subvol size, fsblocks */
 309         __u32           imaxpct;        /* new inode space percentage limit */
 310 } xfs_growfs_data_t;
 311 
 312 typedef struct xfs_growfs_log {
 313         __u32           newblocks;      /* new log size, fsblocks */
 314         __u32           isint;          /* 1 if new log is internal */
 315 } xfs_growfs_log_t;
 316 
 317 typedef struct xfs_growfs_rt {
 318         __u64           newblocks;      /* new realtime size, fsblocks */
 319         __u32           extsize;        /* new realtime extent size, fsblocks */
 320 } xfs_growfs_rt_t;
 321 
 322 
 323 /*
 324  * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
 325  */
 326 typedef struct xfs_bstime {
 327         time_t          tv_sec;         /* seconds              */
 328         __s32           tv_nsec;        /* and nanoseconds      */
 329 } xfs_bstime_t;
 330 
 331 struct xfs_bstat {
 332         __u64           bs_ino;         /* inode number                 */
 333         __u16           bs_mode;        /* type and mode                */
 334         __u16           bs_nlink;       /* number of links              */
 335         __u32           bs_uid;         /* user id                      */
 336         __u32           bs_gid;         /* group id                     */
 337         __u32           bs_rdev;        /* device value                 */
 338         __s32           bs_blksize;     /* block size                   */
 339         __s64           bs_size;        /* file size                    */
 340         xfs_bstime_t    bs_atime;       /* access time                  */
 341         xfs_bstime_t    bs_mtime;       /* modify time                  */
 342         xfs_bstime_t    bs_ctime;       /* inode change time            */
 343         int64_t         bs_blocks;      /* number of blocks             */
 344         __u32           bs_xflags;      /* extended flags               */
 345         __s32           bs_extsize;     /* extent size                  */
 346         __s32           bs_extents;     /* number of extents            */
 347         __u32           bs_gen;         /* generation count             */
 348         __u16           bs_projid_lo;   /* lower part of project id     */
 349 #define bs_projid       bs_projid_lo    /* (previously just bs_projid)  */
 350         __u16           bs_forkoff;     /* inode fork offset in bytes   */
 351         __u16           bs_projid_hi;   /* higher part of project id    */
 352         uint16_t        bs_sick;        /* sick inode metadata          */
 353         uint16_t        bs_checked;     /* checked inode metadata       */
 354         unsigned char   bs_pad[2];      /* pad space, unused            */
 355         __u32           bs_cowextsize;  /* cow extent size              */
 356         __u32           bs_dmevmask;    /* DMIG event mask              */
 357         __u16           bs_dmstate;     /* DMIG state info              */
 358         __u16           bs_aextents;    /* attribute number of extents  */
 359 };
 360 
 361 /* New bulkstat structure that reports v5 features and fixes padding issues */
 362 struct xfs_bulkstat {
 363         uint64_t        bs_ino;         /* inode number                 */
 364         uint64_t        bs_size;        /* file size                    */
 365 
 366         uint64_t        bs_blocks;      /* number of blocks             */
 367         uint64_t        bs_xflags;      /* extended flags               */
 368 
 369         int64_t         bs_atime;       /* access time, seconds         */
 370         int64_t         bs_mtime;       /* modify time, seconds         */
 371 
 372         int64_t         bs_ctime;       /* inode change time, seconds   */
 373         int64_t         bs_btime;       /* creation time, seconds       */
 374 
 375         uint32_t        bs_gen;         /* generation count             */
 376         uint32_t        bs_uid;         /* user id                      */
 377         uint32_t        bs_gid;         /* group id                     */
 378         uint32_t        bs_projectid;   /* project id                   */
 379 
 380         uint32_t        bs_atime_nsec;  /* access time, nanoseconds     */
 381         uint32_t        bs_mtime_nsec;  /* modify time, nanoseconds     */
 382         uint32_t        bs_ctime_nsec;  /* inode change time, nanoseconds */
 383         uint32_t        bs_btime_nsec;  /* creation time, nanoseconds   */
 384 
 385         uint32_t        bs_blksize;     /* block size                   */
 386         uint32_t        bs_rdev;        /* device value                 */
 387         uint32_t        bs_cowextsize_blks; /* cow extent size hint, blocks */
 388         uint32_t        bs_extsize_blks; /* extent size hint, blocks    */
 389 
 390         uint32_t        bs_nlink;       /* number of links              */
 391         uint32_t        bs_extents;     /* number of extents            */
 392         uint32_t        bs_aextents;    /* attribute number of extents  */
 393         uint16_t        bs_version;     /* structure version            */
 394         uint16_t        bs_forkoff;     /* inode fork offset in bytes   */
 395 
 396         uint16_t        bs_sick;        /* sick inode metadata          */
 397         uint16_t        bs_checked;     /* checked inode metadata       */
 398         uint16_t        bs_mode;        /* type and mode                */
 399         uint16_t        bs_pad2;        /* zeroed                       */
 400 
 401         uint64_t        bs_pad[7];      /* zeroed                       */
 402 };
 403 
 404 #define XFS_BULKSTAT_VERSION_V1 (1)
 405 #define XFS_BULKSTAT_VERSION_V5 (5)
 406 
 407 /* bs_sick flags */
 408 #define XFS_BS_SICK_INODE       (1 << 0)  /* inode core */
 409 #define XFS_BS_SICK_BMBTD       (1 << 1)  /* data fork */
 410 #define XFS_BS_SICK_BMBTA       (1 << 2)  /* attr fork */
 411 #define XFS_BS_SICK_BMBTC       (1 << 3)  /* cow fork */
 412 #define XFS_BS_SICK_DIR         (1 << 4)  /* directory */
 413 #define XFS_BS_SICK_XATTR       (1 << 5)  /* extended attributes */
 414 #define XFS_BS_SICK_SYMLINK     (1 << 6)  /* symbolic link remote target */
 415 #define XFS_BS_SICK_PARENT      (1 << 7)  /* parent pointers */
 416 
 417 /*
 418  * Project quota id helpers (previously projid was 16bit only
 419  * and using two 16bit values to hold new 32bit projid was choosen
 420  * to retain compatibility with "old" filesystems).
 421  */
 422 static inline uint32_t
 423 bstat_get_projid(const struct xfs_bstat *bs)
 424 {
 425         return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
 426 }
 427 
 428 /*
 429  * The user-level BulkStat Request interface structure.
 430  */
 431 struct xfs_fsop_bulkreq {
 432         __u64           __user *lastip; /* last inode # pointer         */
 433         __s32           icount;         /* count of entries in buffer   */
 434         void            __user *ubuffer;/* user buffer for inode desc.  */
 435         __s32           __user *ocount; /* output count pointer         */
 436 };
 437 
 438 /*
 439  * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
 440  */
 441 struct xfs_inogrp {
 442         __u64           xi_startino;    /* starting inode number        */
 443         __s32           xi_alloccount;  /* # bits set in allocmask      */
 444         __u64           xi_allocmask;   /* mask of allocated inodes     */
 445 };
 446 
 447 /* New inumbers structure that reports v5 features and fixes padding issues */
 448 struct xfs_inumbers {
 449         uint64_t        xi_startino;    /* starting inode number        */
 450         uint64_t        xi_allocmask;   /* mask of allocated inodes     */
 451         uint8_t         xi_alloccount;  /* # bits set in allocmask      */
 452         uint8_t         xi_version;     /* version                      */
 453         uint8_t         xi_padding[6];  /* zero                         */
 454 };
 455 
 456 #define XFS_INUMBERS_VERSION_V1 (1)
 457 #define XFS_INUMBERS_VERSION_V5 (5)
 458 
 459 /* Header for bulk inode requests. */
 460 struct xfs_bulk_ireq {
 461         uint64_t        ino;            /* I/O: start with this inode   */
 462         uint32_t        flags;          /* I/O: operation flags         */
 463         uint32_t        icount;         /* I: count of entries in buffer */
 464         uint32_t        ocount;         /* O: count of entries filled out */
 465         uint32_t        agno;           /* I: see comment for IREQ_AGNO */
 466         uint64_t        reserved[5];    /* must be zero                 */
 467 };
 468 
 469 /*
 470  * Only return results from the specified @agno.  If @ino is zero, start
 471  * with the first inode of @agno.
 472  */
 473 #define XFS_BULK_IREQ_AGNO      (1 << 0)
 474 
 475 /*
 476  * Return bulkstat information for a single inode, where @ino value is a
 477  * special value, not a literal inode number.  See the XFS_BULK_IREQ_SPECIAL_*
 478  * values below.  Not compatible with XFS_BULK_IREQ_AGNO.
 479  */
 480 #define XFS_BULK_IREQ_SPECIAL   (1 << 1)
 481 
 482 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \
 483                                  XFS_BULK_IREQ_SPECIAL)
 484 
 485 /* Operate on the root directory inode. */
 486 #define XFS_BULK_IREQ_SPECIAL_ROOT      (1)
 487 
 488 /*
 489  * ioctl structures for v5 bulkstat and inumbers requests
 490  */
 491 struct xfs_bulkstat_req {
 492         struct xfs_bulk_ireq    hdr;
 493         struct xfs_bulkstat     bulkstat[];
 494 };
 495 #define XFS_BULKSTAT_REQ_SIZE(nr)       (sizeof(struct xfs_bulkstat_req) + \
 496                                          (nr) * sizeof(struct xfs_bulkstat))
 497 
 498 struct xfs_inumbers_req {
 499         struct xfs_bulk_ireq    hdr;
 500         struct xfs_inumbers     inumbers[];
 501 };
 502 #define XFS_INUMBERS_REQ_SIZE(nr)       (sizeof(struct xfs_inumbers_req) + \
 503                                          (nr) * sizeof(struct xfs_inumbers))
 504 
 505 /*
 506  * Error injection.
 507  */
 508 typedef struct xfs_error_injection {
 509         __s32           fd;
 510         __s32           errtag;
 511 } xfs_error_injection_t;
 512 
 513 
 514 /*
 515  * Speculative preallocation trimming.
 516  */
 517 #define XFS_EOFBLOCKS_VERSION           1
 518 struct xfs_fs_eofblocks {
 519         __u32           eof_version;
 520         __u32           eof_flags;
 521         uid_t           eof_uid;
 522         gid_t           eof_gid;
 523         prid_t          eof_prid;
 524         __u32           pad32;
 525         __u64           eof_min_file_size;
 526         __u64           pad64[12];
 527 };
 528 
 529 /* eof_flags values */
 530 #define XFS_EOF_FLAGS_SYNC              (1 << 0) /* sync/wait mode scan */
 531 #define XFS_EOF_FLAGS_UID               (1 << 1) /* filter by uid */
 532 #define XFS_EOF_FLAGS_GID               (1 << 2) /* filter by gid */
 533 #define XFS_EOF_FLAGS_PRID              (1 << 3) /* filter by project id */
 534 #define XFS_EOF_FLAGS_MINFILESIZE       (1 << 4) /* filter by min file size */
 535 #define XFS_EOF_FLAGS_UNION             (1 << 5) /* union filter algorithm;
 536                                                   * kernel only, not included in
 537                                                   * valid mask */
 538 #define XFS_EOF_FLAGS_VALID     \
 539         (XFS_EOF_FLAGS_SYNC |   \
 540          XFS_EOF_FLAGS_UID |    \
 541          XFS_EOF_FLAGS_GID |    \
 542          XFS_EOF_FLAGS_PRID |   \
 543          XFS_EOF_FLAGS_MINFILESIZE)
 544 
 545 
 546 /*
 547  * The user-level Handle Request interface structure.
 548  */
 549 typedef struct xfs_fsop_handlereq {
 550         __u32           fd;             /* fd for FD_TO_HANDLE          */
 551         void            __user *path;   /* user pathname                */
 552         __u32           oflags;         /* open flags                   */
 553         void            __user *ihandle;/* user supplied handle         */
 554         __u32           ihandlen;       /* user supplied length         */
 555         void            __user *ohandle;/* user buffer for handle       */
 556         __u32           __user *ohandlen;/* user buffer length          */
 557 } xfs_fsop_handlereq_t;
 558 
 559 /*
 560  * Compound structures for passing args through Handle Request interfaces
 561  * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
 562  * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
 563  *           XFS_IOC_ATTRMULTI_BY_HANDLE
 564  */
 565 
 566 typedef struct xfs_fsop_setdm_handlereq {
 567         struct xfs_fsop_handlereq       hreq;   /* handle information   */
 568         struct fsdmidata                __user *data;   /* DMAPI data   */
 569 } xfs_fsop_setdm_handlereq_t;
 570 
 571 typedef struct xfs_attrlist_cursor {
 572         __u32           opaque[4];
 573 } xfs_attrlist_cursor_t;
 574 
 575 typedef struct xfs_fsop_attrlist_handlereq {
 576         struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 577         struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 578         __u32                           flags;  /* which namespace to use */
 579         __u32                           buflen; /* length of buffer supplied */
 580         void                            __user *buffer; /* returned names */
 581 } xfs_fsop_attrlist_handlereq_t;
 582 
 583 typedef struct xfs_attr_multiop {
 584         __u32           am_opcode;
 585 #define ATTR_OP_GET     1       /* return the indicated attr's value */
 586 #define ATTR_OP_SET     2       /* set/create the indicated attr/value pair */
 587 #define ATTR_OP_REMOVE  3       /* remove the indicated attr */
 588         __s32           am_error;
 589         void            __user *am_attrname;
 590         void            __user *am_attrvalue;
 591         __u32           am_length;
 592         __u32           am_flags;
 593 } xfs_attr_multiop_t;
 594 
 595 typedef struct xfs_fsop_attrmulti_handlereq {
 596         struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 597         __u32                           opcount;/* count of following multiop */
 598         struct xfs_attr_multiop         __user *ops; /* attr_multi data */
 599 } xfs_fsop_attrmulti_handlereq_t;
 600 
 601 /*
 602  * per machine unique filesystem identifier types.
 603  */
 604 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
 605 
 606 typedef struct xfs_fid {
 607         __u16   fid_len;                /* length of remainder  */
 608         __u16   fid_pad;
 609         __u32   fid_gen;                /* generation number    */
 610         __u64   fid_ino;                /* 64 bits inode number */
 611 } xfs_fid_t;
 612 
 613 typedef struct xfs_handle {
 614         union {
 615                 __s64       align;      /* force alignment of ha_fid     */
 616                 xfs_fsid_t  _ha_fsid;   /* unique file system identifier */
 617         } ha_u;
 618         xfs_fid_t       ha_fid;         /* file system specific file ID  */
 619 } xfs_handle_t;
 620 #define ha_fsid ha_u._ha_fsid
 621 
 622 /*
 623  * Structure passed to XFS_IOC_SWAPEXT
 624  */
 625 typedef struct xfs_swapext
 626 {
 627         int64_t         sx_version;     /* version */
 628 #define XFS_SX_VERSION          0
 629         int64_t         sx_fdtarget;    /* fd of target file */
 630         int64_t         sx_fdtmp;       /* fd of tmp file */
 631         xfs_off_t       sx_offset;      /* offset into file */
 632         xfs_off_t       sx_length;      /* leng from offset */
 633         char            sx_pad[16];     /* pad space, unused */
 634         struct xfs_bstat sx_stat;       /* stat of target b4 copy */
 635 } xfs_swapext_t;
 636 
 637 /*
 638  * Flags for going down operation
 639  */
 640 #define XFS_FSOP_GOING_FLAGS_DEFAULT            0x0     /* going down */
 641 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH           0x1     /* flush log but not data */
 642 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH         0x2     /* don't flush log nor data */
 643 
 644 /* metadata scrubbing */
 645 struct xfs_scrub_metadata {
 646         __u32 sm_type;          /* What to check? */
 647         __u32 sm_flags;         /* flags; see below. */
 648         __u64 sm_ino;           /* inode number. */
 649         __u32 sm_gen;           /* inode generation. */
 650         __u32 sm_agno;          /* ag number. */
 651         __u64 sm_reserved[5];   /* pad to 64 bytes */
 652 };
 653 
 654 /*
 655  * Metadata types and flags for scrub operation.
 656  */
 657 
 658 /* Scrub subcommands. */
 659 #define XFS_SCRUB_TYPE_PROBE    0       /* presence test ioctl */
 660 #define XFS_SCRUB_TYPE_SB       1       /* superblock */
 661 #define XFS_SCRUB_TYPE_AGF      2       /* AG free header */
 662 #define XFS_SCRUB_TYPE_AGFL     3       /* AG free list */
 663 #define XFS_SCRUB_TYPE_AGI      4       /* AG inode header */
 664 #define XFS_SCRUB_TYPE_BNOBT    5       /* freesp by block btree */
 665 #define XFS_SCRUB_TYPE_CNTBT    6       /* freesp by length btree */
 666 #define XFS_SCRUB_TYPE_INOBT    7       /* inode btree */
 667 #define XFS_SCRUB_TYPE_FINOBT   8       /* free inode btree */
 668 #define XFS_SCRUB_TYPE_RMAPBT   9       /* reverse mapping btree */
 669 #define XFS_SCRUB_TYPE_REFCNTBT 10      /* reference count btree */
 670 #define XFS_SCRUB_TYPE_INODE    11      /* inode record */
 671 #define XFS_SCRUB_TYPE_BMBTD    12      /* data fork block mapping */
 672 #define XFS_SCRUB_TYPE_BMBTA    13      /* attr fork block mapping */
 673 #define XFS_SCRUB_TYPE_BMBTC    14      /* CoW fork block mapping */
 674 #define XFS_SCRUB_TYPE_DIR      15      /* directory */
 675 #define XFS_SCRUB_TYPE_XATTR    16      /* extended attribute */
 676 #define XFS_SCRUB_TYPE_SYMLINK  17      /* symbolic link */
 677 #define XFS_SCRUB_TYPE_PARENT   18      /* parent pointers */
 678 #define XFS_SCRUB_TYPE_RTBITMAP 19      /* realtime bitmap */
 679 #define XFS_SCRUB_TYPE_RTSUM    20      /* realtime summary */
 680 #define XFS_SCRUB_TYPE_UQUOTA   21      /* user quotas */
 681 #define XFS_SCRUB_TYPE_GQUOTA   22      /* group quotas */
 682 #define XFS_SCRUB_TYPE_PQUOTA   23      /* project quotas */
 683 #define XFS_SCRUB_TYPE_FSCOUNTERS 24    /* fs summary counters */
 684 
 685 /* Number of scrub subcommands. */
 686 #define XFS_SCRUB_TYPE_NR       25
 687 
 688 /* i: Repair this metadata. */
 689 #define XFS_SCRUB_IFLAG_REPAIR          (1 << 0)
 690 
 691 /* o: Metadata object needs repair. */
 692 #define XFS_SCRUB_OFLAG_CORRUPT         (1 << 1)
 693 
 694 /*
 695  * o: Metadata object could be optimized.  It's not corrupt, but
 696  *    we could improve on it somehow.
 697  */
 698 #define XFS_SCRUB_OFLAG_PREEN           (1 << 2)
 699 
 700 /* o: Cross-referencing failed. */
 701 #define XFS_SCRUB_OFLAG_XFAIL           (1 << 3)
 702 
 703 /* o: Metadata object disagrees with cross-referenced metadata. */
 704 #define XFS_SCRUB_OFLAG_XCORRUPT        (1 << 4)
 705 
 706 /* o: Scan was not complete. */
 707 #define XFS_SCRUB_OFLAG_INCOMPLETE      (1 << 5)
 708 
 709 /* o: Metadata object looked funny but isn't corrupt. */
 710 #define XFS_SCRUB_OFLAG_WARNING         (1 << 6)
 711 
 712 /*
 713  * o: IFLAG_REPAIR was set but metadata object did not need fixing or
 714  *    optimization and has therefore not been altered.
 715  */
 716 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1 << 7)
 717 
 718 #define XFS_SCRUB_FLAGS_IN      (XFS_SCRUB_IFLAG_REPAIR)
 719 #define XFS_SCRUB_FLAGS_OUT     (XFS_SCRUB_OFLAG_CORRUPT | \
 720                                  XFS_SCRUB_OFLAG_PREEN | \
 721                                  XFS_SCRUB_OFLAG_XFAIL | \
 722                                  XFS_SCRUB_OFLAG_XCORRUPT | \
 723                                  XFS_SCRUB_OFLAG_INCOMPLETE | \
 724                                  XFS_SCRUB_OFLAG_WARNING | \
 725                                  XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
 726 #define XFS_SCRUB_FLAGS_ALL     (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
 727 
 728 /*
 729  * ioctl limits
 730  */
 731 #ifdef XATTR_LIST_MAX
 732 #  define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
 733 #else
 734 #  define XFS_XATTR_LIST_MAX 65536
 735 #endif
 736 
 737 
 738 /*
 739  * ioctl commands that are used by Linux filesystems
 740  */
 741 #define XFS_IOC_GETXFLAGS       FS_IOC_GETFLAGS
 742 #define XFS_IOC_SETXFLAGS       FS_IOC_SETFLAGS
 743 #define XFS_IOC_GETVERSION      FS_IOC_GETVERSION
 744 
 745 /*
 746  * ioctl commands that replace IRIX fcntl()'s
 747  * For 'documentation' purposed more than anything else,
 748  * the "cmd #" field reflects the IRIX fcntl number.
 749  */
 750 #define XFS_IOC_ALLOCSP         _IOW ('X', 10, struct xfs_flock64)
 751 #define XFS_IOC_FREESP          _IOW ('X', 11, struct xfs_flock64)
 752 #define XFS_IOC_DIOINFO         _IOR ('X', 30, struct dioattr)
 753 #define XFS_IOC_FSGETXATTR      FS_IOC_FSGETXATTR
 754 #define XFS_IOC_FSSETXATTR      FS_IOC_FSSETXATTR
 755 #define XFS_IOC_ALLOCSP64       _IOW ('X', 36, struct xfs_flock64)
 756 #define XFS_IOC_FREESP64        _IOW ('X', 37, struct xfs_flock64)
 757 #define XFS_IOC_GETBMAP         _IOWR('X', 38, struct getbmap)
 758 #define XFS_IOC_FSSETDM         _IOW ('X', 39, struct fsdmidata)
 759 #define XFS_IOC_RESVSP          _IOW ('X', 40, struct xfs_flock64)
 760 #define XFS_IOC_UNRESVSP        _IOW ('X', 41, struct xfs_flock64)
 761 #define XFS_IOC_RESVSP64        _IOW ('X', 42, struct xfs_flock64)
 762 #define XFS_IOC_UNRESVSP64      _IOW ('X', 43, struct xfs_flock64)
 763 #define XFS_IOC_GETBMAPA        _IOWR('X', 44, struct getbmap)
 764 #define XFS_IOC_FSGETXATTRA     _IOR ('X', 45, struct fsxattr)
 765 /*      XFS_IOC_SETBIOSIZE ---- deprecated 46      */
 766 /*      XFS_IOC_GETBIOSIZE ---- deprecated 47      */
 767 #define XFS_IOC_GETBMAPX        _IOWR('X', 56, struct getbmap)
 768 #define XFS_IOC_ZERO_RANGE      _IOW ('X', 57, struct xfs_flock64)
 769 #define XFS_IOC_FREE_EOFBLOCKS  _IOR ('X', 58, struct xfs_fs_eofblocks)
 770 /*      XFS_IOC_GETFSMAP ------ hoisted 59         */
 771 #define XFS_IOC_SCRUB_METADATA  _IOWR('X', 60, struct xfs_scrub_metadata)
 772 #define XFS_IOC_AG_GEOMETRY     _IOWR('X', 61, struct xfs_ag_geometry)
 773 
 774 /*
 775  * ioctl commands that replace IRIX syssgi()'s
 776  */
 777 #define XFS_IOC_FSGEOMETRY_V1        _IOR ('X', 100, struct xfs_fsop_geom_v1)
 778 #define XFS_IOC_FSBULKSTAT           _IOWR('X', 101, struct xfs_fsop_bulkreq)
 779 #define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
 780 #define XFS_IOC_FSINUMBERS           _IOWR('X', 103, struct xfs_fsop_bulkreq)
 781 #define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
 782 #define XFS_IOC_PATH_TO_HANDLE       _IOWR('X', 105, struct xfs_fsop_handlereq)
 783 #define XFS_IOC_FD_TO_HANDLE         _IOWR('X', 106, struct xfs_fsop_handlereq)
 784 #define XFS_IOC_OPEN_BY_HANDLE       _IOWR('X', 107, struct xfs_fsop_handlereq)
 785 #define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
 786 #define XFS_IOC_SWAPEXT              _IOWR('X', 109, struct xfs_swapext)
 787 #define XFS_IOC_FSGROWFSDATA         _IOW ('X', 110, struct xfs_growfs_data)
 788 #define XFS_IOC_FSGROWFSLOG          _IOW ('X', 111, struct xfs_growfs_log)
 789 #define XFS_IOC_FSGROWFSRT           _IOW ('X', 112, struct xfs_growfs_rt)
 790 #define XFS_IOC_FSCOUNTS             _IOR ('X', 113, struct xfs_fsop_counts)
 791 #define XFS_IOC_SET_RESBLKS          _IOWR('X', 114, struct xfs_fsop_resblks)
 792 #define XFS_IOC_GET_RESBLKS          _IOR ('X', 115, struct xfs_fsop_resblks)
 793 #define XFS_IOC_ERROR_INJECTION      _IOW ('X', 116, struct xfs_error_injection)
 794 #define XFS_IOC_ERROR_CLEARALL       _IOW ('X', 117, struct xfs_error_injection)
 795 /*      XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118      */
 796 
 797 #define XFS_IOC_FREEZE               _IOWR('X', 119, int)       /* aka FIFREEZE */
 798 #define XFS_IOC_THAW                 _IOWR('X', 120, int)       /* aka FITHAW */
 799 
 800 #define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
 801 #define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
 802 #define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
 803 #define XFS_IOC_FSGEOMETRY_V4        _IOR ('X', 124, struct xfs_fsop_geom_v4)
 804 #define XFS_IOC_GOINGDOWN            _IOR ('X', 125, uint32_t)
 805 #define XFS_IOC_FSGEOMETRY           _IOR ('X', 126, struct xfs_fsop_geom)
 806 #define XFS_IOC_BULKSTAT             _IOR ('X', 127, struct xfs_bulkstat_req)
 807 #define XFS_IOC_INUMBERS             _IOR ('X', 128, struct xfs_inumbers_req)
 808 /*      XFS_IOC_GETFSUUID ---------- deprecated 140      */
 809 
 810 
 811 #ifndef HAVE_BBMACROS
 812 /*
 813  * Block I/O parameterization.  A basic block (BB) is the lowest size of
 814  * filesystem allocation, and must equal 512.  Length units given to bio
 815  * routines are in BB's.
 816  */
 817 #define BBSHIFT         9
 818 #define BBSIZE          (1<<BBSHIFT)
 819 #define BBMASK          (BBSIZE-1)
 820 #define BTOBB(bytes)    (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
 821 #define BTOBBT(bytes)   ((__u64)(bytes) >> BBSHIFT)
 822 #define BBTOB(bbs)      ((bbs) << BBSHIFT)
 823 #endif
 824 
 825 #endif  /* __XFS_FS_H__ */

/* [<][>][^][v][top][bottom][index][help] */