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Diffstat (limited to 'fs/xfs/libxfs/xfs_fs.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_fs.h | 851 |
1 files changed, 851 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h new file mode 100644 index 000000000..1cfd5bc65 --- /dev/null +++ b/fs/xfs/libxfs/xfs_fs.h @@ -0,0 +1,851 @@ +/* SPDX-License-Identifier: LGPL-2.1 */ +/* + * Copyright (c) 1995-2005 Silicon Graphics, Inc. + * All Rights Reserved. + */ +#ifndef __XFS_FS_H__ +#define __XFS_FS_H__ + +/* + * SGI's XFS filesystem's major stuff (constants, structures) + */ + +/* + * Direct I/O attribute record used with XFS_IOC_DIOINFO + * d_miniosz is the min xfer size, xfer size multiple and file seek offset + * alignment. + */ +#ifndef HAVE_DIOATTR +struct dioattr { + __u32 d_mem; /* data buffer memory alignment */ + __u32 d_miniosz; /* min xfer size */ + __u32 d_maxiosz; /* max xfer size */ +}; +#endif + +/* + * Structure for XFS_IOC_GETBMAP. + * On input, fill in bmv_offset and bmv_length of the first structure + * to indicate the area of interest in the file, and bmv_entries with + * the number of array elements given back. The first structure is + * updated on return to give the offset and length for the next call. + */ +#ifndef HAVE_GETBMAP +struct getbmap { + __s64 bmv_offset; /* file offset of segment in blocks */ + __s64 bmv_block; /* starting block (64-bit daddr_t) */ + __s64 bmv_length; /* length of segment, blocks */ + __s32 bmv_count; /* # of entries in array incl. 1st */ + __s32 bmv_entries; /* # of entries filled in (output) */ +}; +#endif + +/* + * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries + * are used exactly as in the getbmap structure. The getbmapx structure + * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field + * is only used for the first structure. It contains input flags + * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled + * in by the XFS_IOC_GETBMAPX command for each returned structure after + * the first. + */ +#ifndef HAVE_GETBMAPX +struct getbmapx { + __s64 bmv_offset; /* file offset of segment in blocks */ + __s64 bmv_block; /* starting block (64-bit daddr_t) */ + __s64 bmv_length; /* length of segment, blocks */ + __s32 bmv_count; /* # of entries in array incl. 1st */ + __s32 bmv_entries; /* # of entries filled in (output). */ + __s32 bmv_iflags; /* input flags (1st structure) */ + __s32 bmv_oflags; /* output flags (after 1st structure)*/ + __s32 bmv_unused1; /* future use */ + __s32 bmv_unused2; /* future use */ +}; +#endif + +/* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */ +#define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */ +#define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */ +#define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ +#define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */ +#define BMV_IF_NO_HOLES 0x10 /* Do not return holes */ +#define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */ +#define BMV_IF_VALID \ + (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \ + BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK) + +/* bmv_oflags values - returned for each non-header segment */ +#define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ +#define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */ +#define BMV_OF_LAST 0x4 /* segment is the last in the file */ +#define BMV_OF_SHARED 0x8 /* segment shared with another file */ + +/* fmr_owner special values for FS_IOC_GETFSMAP */ +#define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */ +#define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */ +#define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */ +#define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */ +#define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */ +#define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */ +#define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */ +#define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */ +#define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */ +#define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */ + +/* + * File segment locking set data type for 64 bit access. + * Also used for all the RESV/FREE interfaces. + */ +typedef struct xfs_flock64 { + __s16 l_type; + __s16 l_whence; + __s64 l_start; + __s64 l_len; /* len == 0 means until end of file */ + __s32 l_sysid; + __u32 l_pid; + __s32 l_pad[4]; /* reserve area */ +} xfs_flock64_t; + +/* + * Output for XFS_IOC_FSGEOMETRY_V1 + */ +struct xfs_fsop_geom_v1 { + __u32 blocksize; /* filesystem (data) block size */ + __u32 rtextsize; /* realtime extent size */ + __u32 agblocks; /* fsblocks in an AG */ + __u32 agcount; /* number of allocation groups */ + __u32 logblocks; /* fsblocks in the log */ + __u32 sectsize; /* (data) sector size, bytes */ + __u32 inodesize; /* inode size in bytes */ + __u32 imaxpct; /* max allowed inode space(%) */ + __u64 datablocks; /* fsblocks in data subvolume */ + __u64 rtblocks; /* fsblocks in realtime subvol */ + __u64 rtextents; /* rt extents in realtime subvol*/ + __u64 logstart; /* starting fsblock of the log */ + unsigned char uuid[16]; /* unique id of the filesystem */ + __u32 sunit; /* stripe unit, fsblocks */ + __u32 swidth; /* stripe width, fsblocks */ + __s32 version; /* structure version */ + __u32 flags; /* superblock version flags */ + __u32 logsectsize; /* log sector size, bytes */ + __u32 rtsectsize; /* realtime sector size, bytes */ + __u32 dirblocksize; /* directory block size, bytes */ +}; + +/* + * Output for XFS_IOC_FSGEOMETRY_V4 + */ +struct xfs_fsop_geom_v4 { + __u32 blocksize; /* filesystem (data) block size */ + __u32 rtextsize; /* realtime extent size */ + __u32 agblocks; /* fsblocks in an AG */ + __u32 agcount; /* number of allocation groups */ + __u32 logblocks; /* fsblocks in the log */ + __u32 sectsize; /* (data) sector size, bytes */ + __u32 inodesize; /* inode size in bytes */ + __u32 imaxpct; /* max allowed inode space(%) */ + __u64 datablocks; /* fsblocks in data subvolume */ + __u64 rtblocks; /* fsblocks in realtime subvol */ + __u64 rtextents; /* rt extents in realtime subvol*/ + __u64 logstart; /* starting fsblock of the log */ + unsigned char uuid[16]; /* unique id of the filesystem */ + __u32 sunit; /* stripe unit, fsblocks */ + __u32 swidth; /* stripe width, fsblocks */ + __s32 version; /* structure version */ + __u32 flags; /* superblock version flags */ + __u32 logsectsize; /* log sector size, bytes */ + __u32 rtsectsize; /* realtime sector size, bytes */ + __u32 dirblocksize; /* directory block size, bytes */ + __u32 logsunit; /* log stripe unit, bytes */ +}; + +/* + * Output for XFS_IOC_FSGEOMETRY + */ +struct xfs_fsop_geom { + __u32 blocksize; /* filesystem (data) block size */ + __u32 rtextsize; /* realtime extent size */ + __u32 agblocks; /* fsblocks in an AG */ + __u32 agcount; /* number of allocation groups */ + __u32 logblocks; /* fsblocks in the log */ + __u32 sectsize; /* (data) sector size, bytes */ + __u32 inodesize; /* inode size in bytes */ + __u32 imaxpct; /* max allowed inode space(%) */ + __u64 datablocks; /* fsblocks in data subvolume */ + __u64 rtblocks; /* fsblocks in realtime subvol */ + __u64 rtextents; /* rt extents in realtime subvol*/ + __u64 logstart; /* starting fsblock of the log */ + unsigned char uuid[16]; /* unique id of the filesystem */ + __u32 sunit; /* stripe unit, fsblocks */ + __u32 swidth; /* stripe width, fsblocks */ + __s32 version; /* structure version */ + __u32 flags; /* superblock version flags */ + __u32 logsectsize; /* log sector size, bytes */ + __u32 rtsectsize; /* realtime sector size, bytes */ + __u32 dirblocksize; /* directory block size, bytes */ + __u32 logsunit; /* log stripe unit, bytes */ + uint32_t sick; /* o: unhealthy fs & rt metadata */ + uint32_t checked; /* o: checked fs & rt metadata */ + __u64 reserved[17]; /* reserved space */ +}; + +#define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */ +#define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */ +#define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */ +#define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */ +#define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */ +#define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */ + +/* Output for XFS_FS_COUNTS */ +typedef struct xfs_fsop_counts { + __u64 freedata; /* free data section blocks */ + __u64 freertx; /* free rt extents */ + __u64 freeino; /* free inodes */ + __u64 allocino; /* total allocated inodes */ +} xfs_fsop_counts_t; + +/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ +typedef struct xfs_fsop_resblks { + __u64 resblks; + __u64 resblks_avail; +} xfs_fsop_resblks_t; + +#define XFS_FSOP_GEOM_VERSION 0 +#define XFS_FSOP_GEOM_VERSION_V5 5 + +#define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */ +#define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */ +#define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */ +#define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */ +#define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */ +#define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */ +#define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */ +#define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */ +#define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */ +#define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */ +#define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */ +#define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */ +#define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */ + /* -- Do not use -- (1 << 13) SGI parent pointers */ +#define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */ +#define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */ +#define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */ +#define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */ +#define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */ +#define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */ +#define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */ +#define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */ +#define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ +#define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */ + +/* + * Minimum and maximum sizes need for growth checks. + * + * Block counts are in units of filesystem blocks, not basic blocks. + */ +#define XFS_MIN_AG_BLOCKS 64 +#define XFS_MIN_LOG_BLOCKS 512ULL +#define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL) +#define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL) + +/* + * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than + * 16MB or larger than 1TB. + */ +#define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */ +#define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */ +#define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE) +#define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE) + +/* keep the maximum size under 2^31 by a small amount */ +#define XFS_MAX_LOG_BYTES \ + ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES) + +/* Used for sanity checks on superblock */ +#define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks) +#define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \ + (s)->sb_agblocks + XFS_MIN_AG_BLOCKS) + +/* + * Output for XFS_IOC_AG_GEOMETRY + */ +struct xfs_ag_geometry { + uint32_t ag_number; /* i/o: AG number */ + uint32_t ag_length; /* o: length in blocks */ + uint32_t ag_freeblks; /* o: free space */ + uint32_t ag_icount; /* o: inodes allocated */ + uint32_t ag_ifree; /* o: inodes free */ + uint32_t ag_sick; /* o: sick things in ag */ + uint32_t ag_checked; /* o: checked metadata in ag */ + uint32_t ag_flags; /* i/o: flags for this ag */ + uint64_t ag_reserved[12];/* o: zero */ +}; +#define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */ +#define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */ +#define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */ +#define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */ +#define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */ +#define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */ +#define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */ +#define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */ +#define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */ +#define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */ + +/* + * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT + */ +typedef struct xfs_growfs_data { + __u64 newblocks; /* new data subvol size, fsblocks */ + __u32 imaxpct; /* new inode space percentage limit */ +} xfs_growfs_data_t; + +typedef struct xfs_growfs_log { + __u32 newblocks; /* new log size, fsblocks */ + __u32 isint; /* 1 if new log is internal */ +} xfs_growfs_log_t; + +typedef struct xfs_growfs_rt { + __u64 newblocks; /* new realtime size, fsblocks */ + __u32 extsize; /* new realtime extent size, fsblocks */ +} xfs_growfs_rt_t; + + +/* + * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE + */ +typedef struct xfs_bstime { + __kernel_long_t tv_sec; /* seconds */ + __s32 tv_nsec; /* and nanoseconds */ +} xfs_bstime_t; + +struct xfs_bstat { + __u64 bs_ino; /* inode number */ + __u16 bs_mode; /* type and mode */ + __u16 bs_nlink; /* number of links */ + __u32 bs_uid; /* user id */ + __u32 bs_gid; /* group id */ + __u32 bs_rdev; /* device value */ + __s32 bs_blksize; /* block size */ + __s64 bs_size; /* file size */ + xfs_bstime_t bs_atime; /* access time */ + xfs_bstime_t bs_mtime; /* modify time */ + xfs_bstime_t bs_ctime; /* inode change time */ + int64_t bs_blocks; /* number of blocks */ + __u32 bs_xflags; /* extended flags */ + __s32 bs_extsize; /* extent size */ + __s32 bs_extents; /* number of extents */ + __u32 bs_gen; /* generation count */ + __u16 bs_projid_lo; /* lower part of project id */ +#define bs_projid bs_projid_lo /* (previously just bs_projid) */ + __u16 bs_forkoff; /* inode fork offset in bytes */ + __u16 bs_projid_hi; /* higher part of project id */ + uint16_t bs_sick; /* sick inode metadata */ + uint16_t bs_checked; /* checked inode metadata */ + unsigned char bs_pad[2]; /* pad space, unused */ + __u32 bs_cowextsize; /* cow extent size */ + __u32 bs_dmevmask; /* DMIG event mask */ + __u16 bs_dmstate; /* DMIG state info */ + __u16 bs_aextents; /* attribute number of extents */ +}; + +/* New bulkstat structure that reports v5 features and fixes padding issues */ +struct xfs_bulkstat { + uint64_t bs_ino; /* inode number */ + uint64_t bs_size; /* file size */ + + uint64_t bs_blocks; /* number of blocks */ + uint64_t bs_xflags; /* extended flags */ + + int64_t bs_atime; /* access time, seconds */ + int64_t bs_mtime; /* modify time, seconds */ + + int64_t bs_ctime; /* inode change time, seconds */ + int64_t bs_btime; /* creation time, seconds */ + + uint32_t bs_gen; /* generation count */ + uint32_t bs_uid; /* user id */ + uint32_t bs_gid; /* group id */ + uint32_t bs_projectid; /* project id */ + + uint32_t bs_atime_nsec; /* access time, nanoseconds */ + uint32_t bs_mtime_nsec; /* modify time, nanoseconds */ + uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */ + uint32_t bs_btime_nsec; /* creation time, nanoseconds */ + + uint32_t bs_blksize; /* block size */ + uint32_t bs_rdev; /* device value */ + uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */ + uint32_t bs_extsize_blks; /* extent size hint, blocks */ + + uint32_t bs_nlink; /* number of links */ + uint32_t bs_extents; /* 32-bit data fork extent counter */ + uint32_t bs_aextents; /* attribute number of extents */ + uint16_t bs_version; /* structure version */ + uint16_t bs_forkoff; /* inode fork offset in bytes */ + + uint16_t bs_sick; /* sick inode metadata */ + uint16_t bs_checked; /* checked inode metadata */ + uint16_t bs_mode; /* type and mode */ + uint16_t bs_pad2; /* zeroed */ + uint64_t bs_extents64; /* 64-bit data fork extent counter */ + + uint64_t bs_pad[6]; /* zeroed */ +}; + +#define XFS_BULKSTAT_VERSION_V1 (1) +#define XFS_BULKSTAT_VERSION_V5 (5) + +/* bs_sick flags */ +#define XFS_BS_SICK_INODE (1 << 0) /* inode core */ +#define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */ +#define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */ +#define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */ +#define XFS_BS_SICK_DIR (1 << 4) /* directory */ +#define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */ +#define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */ +#define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */ + +/* + * Project quota id helpers (previously projid was 16bit only + * and using two 16bit values to hold new 32bit projid was chosen + * to retain compatibility with "old" filesystems). + */ +static inline uint32_t +bstat_get_projid(const struct xfs_bstat *bs) +{ + return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo; +} + +/* + * The user-level BulkStat Request interface structure. + */ +struct xfs_fsop_bulkreq { + __u64 __user *lastip; /* last inode # pointer */ + __s32 icount; /* count of entries in buffer */ + void __user *ubuffer;/* user buffer for inode desc. */ + __s32 __user *ocount; /* output count pointer */ +}; + +/* + * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). + */ +struct xfs_inogrp { + __u64 xi_startino; /* starting inode number */ + __s32 xi_alloccount; /* # bits set in allocmask */ + __u64 xi_allocmask; /* mask of allocated inodes */ +}; + +/* New inumbers structure that reports v5 features and fixes padding issues */ +struct xfs_inumbers { + uint64_t xi_startino; /* starting inode number */ + uint64_t xi_allocmask; /* mask of allocated inodes */ + uint8_t xi_alloccount; /* # bits set in allocmask */ + uint8_t xi_version; /* version */ + uint8_t xi_padding[6]; /* zero */ +}; + +#define XFS_INUMBERS_VERSION_V1 (1) +#define XFS_INUMBERS_VERSION_V5 (5) + +/* Header for bulk inode requests. */ +struct xfs_bulk_ireq { + uint64_t ino; /* I/O: start with this inode */ + uint32_t flags; /* I/O: operation flags */ + uint32_t icount; /* I: count of entries in buffer */ + uint32_t ocount; /* O: count of entries filled out */ + uint32_t agno; /* I: see comment for IREQ_AGNO */ + uint64_t reserved[5]; /* must be zero */ +}; + +/* + * Only return results from the specified @agno. If @ino is zero, start + * with the first inode of @agno. + */ +#define XFS_BULK_IREQ_AGNO (1U << 0) + +/* + * Return bulkstat information for a single inode, where @ino value is a + * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_* + * values below. Not compatible with XFS_BULK_IREQ_AGNO. + */ +#define XFS_BULK_IREQ_SPECIAL (1U << 1) + +/* + * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign + * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use + * xfs_bulkstat->bs_extents for returning data fork extent count and set + * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and + * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than + * XFS_MAX_EXTCNT_DATA_FORK_OLD. + */ +#define XFS_BULK_IREQ_NREXT64 (1U << 2) + +#define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \ + XFS_BULK_IREQ_SPECIAL | \ + XFS_BULK_IREQ_NREXT64) + +/* Operate on the root directory inode. */ +#define XFS_BULK_IREQ_SPECIAL_ROOT (1) + +/* + * ioctl structures for v5 bulkstat and inumbers requests + */ +struct xfs_bulkstat_req { + struct xfs_bulk_ireq hdr; + struct xfs_bulkstat bulkstat[]; +}; +#define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \ + (nr) * sizeof(struct xfs_bulkstat)) + +struct xfs_inumbers_req { + struct xfs_bulk_ireq hdr; + struct xfs_inumbers inumbers[]; +}; +#define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \ + (nr) * sizeof(struct xfs_inumbers)) + +/* + * Error injection. + */ +typedef struct xfs_error_injection { + __s32 fd; + __s32 errtag; +} xfs_error_injection_t; + + +/* + * Speculative preallocation trimming. + */ +#define XFS_EOFBLOCKS_VERSION 1 +struct xfs_fs_eofblocks { + __u32 eof_version; + __u32 eof_flags; + uid_t eof_uid; + gid_t eof_gid; + prid_t eof_prid; + __u32 pad32; + __u64 eof_min_file_size; + __u64 pad64[12]; +}; + +/* eof_flags values */ +#define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ +#define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */ +#define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */ +#define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */ +#define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */ +#define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm; + * kernel only, not included in + * valid mask */ +#define XFS_EOF_FLAGS_VALID \ + (XFS_EOF_FLAGS_SYNC | \ + XFS_EOF_FLAGS_UID | \ + XFS_EOF_FLAGS_GID | \ + XFS_EOF_FLAGS_PRID | \ + XFS_EOF_FLAGS_MINFILESIZE) + + +/* + * The user-level Handle Request interface structure. + */ +typedef struct xfs_fsop_handlereq { + __u32 fd; /* fd for FD_TO_HANDLE */ + void __user *path; /* user pathname */ + __u32 oflags; /* open flags */ + void __user *ihandle;/* user supplied handle */ + __u32 ihandlen; /* user supplied length */ + void __user *ohandle;/* user buffer for handle */ + __u32 __user *ohandlen;/* user buffer length */ +} xfs_fsop_handlereq_t; + +/* + * Compound structures for passing args through Handle Request interfaces + * xfs_attrlist_by_handle, xfs_attrmulti_by_handle + * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE + */ + +/* + * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface. + * + * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix. + */ +#define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */ +#define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */ +#define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */ +#define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */ + +typedef struct xfs_attrlist_cursor { + __u32 opaque[4]; +} xfs_attrlist_cursor_t; + +/* + * Define how lists of attribute names are returned to userspace from the + * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the + * beginning of the returned buffer, and a each entry in al_offset contains the + * relative offset of an xfs_attrlist_ent containing the actual entry. + * + * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and + * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr. + */ +struct xfs_attrlist { + __s32 al_count; /* number of entries in attrlist */ + __s32 al_more; /* T/F: more attrs (do call again) */ + __s32 al_offset[1]; /* byte offsets of attrs [var-sized] */ +}; + +struct xfs_attrlist_ent { /* data from attr_list() */ + __u32 a_valuelen; /* number bytes in value of attr */ + char a_name[1]; /* attr name (NULL terminated) */ +}; + +typedef struct xfs_fsop_attrlist_handlereq { + struct xfs_fsop_handlereq hreq; /* handle interface structure */ + struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ + __u32 flags; /* which namespace to use */ + __u32 buflen; /* length of buffer supplied */ + void __user *buffer; /* returned names */ +} xfs_fsop_attrlist_handlereq_t; + +typedef struct xfs_attr_multiop { + __u32 am_opcode; +#define ATTR_OP_GET 1 /* return the indicated attr's value */ +#define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */ +#define ATTR_OP_REMOVE 3 /* remove the indicated attr */ + __s32 am_error; + void __user *am_attrname; + void __user *am_attrvalue; + __u32 am_length; + __u32 am_flags; /* XFS_IOC_ATTR_* */ +} xfs_attr_multiop_t; + +typedef struct xfs_fsop_attrmulti_handlereq { + struct xfs_fsop_handlereq hreq; /* handle interface structure */ + __u32 opcount;/* count of following multiop */ + struct xfs_attr_multiop __user *ops; /* attr_multi data */ +} xfs_fsop_attrmulti_handlereq_t; + +/* + * per machine unique filesystem identifier types. + */ +typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */ + +typedef struct xfs_fid { + __u16 fid_len; /* length of remainder */ + __u16 fid_pad; + __u32 fid_gen; /* generation number */ + __u64 fid_ino; /* 64 bits inode number */ +} xfs_fid_t; + +typedef struct xfs_handle { + union { + __s64 align; /* force alignment of ha_fid */ + xfs_fsid_t _ha_fsid; /* unique file system identifier */ + } ha_u; + xfs_fid_t ha_fid; /* file system specific file ID */ +} xfs_handle_t; +#define ha_fsid ha_u._ha_fsid + +/* + * Structure passed to XFS_IOC_SWAPEXT + */ +typedef struct xfs_swapext +{ + int64_t sx_version; /* version */ +#define XFS_SX_VERSION 0 + int64_t sx_fdtarget; /* fd of target file */ + int64_t sx_fdtmp; /* fd of tmp file */ + xfs_off_t sx_offset; /* offset into file */ + xfs_off_t sx_length; /* leng from offset */ + char sx_pad[16]; /* pad space, unused */ + struct xfs_bstat sx_stat; /* stat of target b4 copy */ +} xfs_swapext_t; + +/* + * Flags for going down operation + */ +#define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */ +#define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ +#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ + +/* metadata scrubbing */ +struct xfs_scrub_metadata { + __u32 sm_type; /* What to check? */ + __u32 sm_flags; /* flags; see below. */ + __u64 sm_ino; /* inode number. */ + __u32 sm_gen; /* inode generation. */ + __u32 sm_agno; /* ag number. */ + __u64 sm_reserved[5]; /* pad to 64 bytes */ +}; + +/* + * Metadata types and flags for scrub operation. + */ + +/* Scrub subcommands. */ +#define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */ +#define XFS_SCRUB_TYPE_SB 1 /* superblock */ +#define XFS_SCRUB_TYPE_AGF 2 /* AG free header */ +#define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */ +#define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */ +#define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */ +#define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */ +#define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */ +#define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */ +#define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */ +#define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */ +#define XFS_SCRUB_TYPE_INODE 11 /* inode record */ +#define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */ +#define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */ +#define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */ +#define XFS_SCRUB_TYPE_DIR 15 /* directory */ +#define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ +#define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ +#define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ +#define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ +#define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ +#define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */ +#define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */ +#define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */ +#define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */ + +/* Number of scrub subcommands. */ +#define XFS_SCRUB_TYPE_NR 25 + +/* i: Repair this metadata. */ +#define XFS_SCRUB_IFLAG_REPAIR (1u << 0) + +/* o: Metadata object needs repair. */ +#define XFS_SCRUB_OFLAG_CORRUPT (1u << 1) + +/* + * o: Metadata object could be optimized. It's not corrupt, but + * we could improve on it somehow. + */ +#define XFS_SCRUB_OFLAG_PREEN (1u << 2) + +/* o: Cross-referencing failed. */ +#define XFS_SCRUB_OFLAG_XFAIL (1u << 3) + +/* o: Metadata object disagrees with cross-referenced metadata. */ +#define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4) + +/* o: Scan was not complete. */ +#define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5) + +/* o: Metadata object looked funny but isn't corrupt. */ +#define XFS_SCRUB_OFLAG_WARNING (1u << 6) + +/* + * o: IFLAG_REPAIR was set but metadata object did not need fixing or + * optimization and has therefore not been altered. + */ +#define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7) + +#define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR) +#define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \ + XFS_SCRUB_OFLAG_PREEN | \ + XFS_SCRUB_OFLAG_XFAIL | \ + XFS_SCRUB_OFLAG_XCORRUPT | \ + XFS_SCRUB_OFLAG_INCOMPLETE | \ + XFS_SCRUB_OFLAG_WARNING | \ + XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED) +#define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT) + +/* + * ioctl limits + */ +#ifdef XATTR_LIST_MAX +# define XFS_XATTR_LIST_MAX XATTR_LIST_MAX +#else +# define XFS_XATTR_LIST_MAX 65536 +#endif + + +/* + * ioctl commands that are used by Linux filesystems + */ +#define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS +#define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS +#define XFS_IOC_GETVERSION FS_IOC_GETVERSION + +/* + * ioctl commands that replace IRIX fcntl()'s + * For 'documentation' purposed more than anything else, + * the "cmd #" field reflects the IRIX fcntl number. + */ +/* XFS_IOC_ALLOCSP ------- deprecated 10 */ +/* XFS_IOC_FREESP -------- deprecated 11 */ +#define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr) +#define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR +#define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR +/* XFS_IOC_ALLOCSP64 ----- deprecated 36 */ +/* XFS_IOC_FREESP64 ------ deprecated 37 */ +#define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) +/* XFS_IOC_FSSETDM ------- deprecated 39 */ +#define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64) +#define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64) +#define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64) +#define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64) +#define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap) +#define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr) +/* XFS_IOC_SETBIOSIZE ---- deprecated 46 */ +/* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ +#define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) +#define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64) +#define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks) +/* XFS_IOC_GETFSMAP ------ hoisted 59 */ +#define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata) +#define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry) + +/* + * ioctl commands that replace IRIX syssgi()'s + */ +#define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1) +#define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq) +#define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq) +#define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq) +#define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq) +#define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq) +#define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq) +#define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq) +#define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq) +#define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext) +#define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data) +#define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log) +#define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt) +#define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts) +#define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks) +#define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks) +#define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection) +#define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection) +/* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */ + +#define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */ +#define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */ + +/* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */ +#define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq) +#define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq) +#define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4) +#define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t) +#define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom) +#define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req) +#define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req) +/* XFS_IOC_GETFSUUID ---------- deprecated 140 */ + + +#ifndef HAVE_BBMACROS +/* + * Block I/O parameterization. A basic block (BB) is the lowest size of + * filesystem allocation, and must equal 512. Length units given to bio + * routines are in BB's. + */ +#define BBSHIFT 9 +#define BBSIZE (1<<BBSHIFT) +#define BBMASK (BBSIZE-1) +#define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT) +#define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT) +#define BBTOB(bbs) ((bbs) << BBSHIFT) +#endif + +#endif /* __XFS_FS_H__ */ |