854 lines
32 KiB
C
854 lines
32 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 */
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/*
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* Copyright (c) 1995-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_FS_H__
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#define __XFS_FS_H__
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/*
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* SGI's XFS filesystem's major stuff (constants, structures)
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*/
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/*
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* Direct I/O attribute record used with XFS_IOC_DIOINFO
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* d_miniosz is the min xfer size, xfer size multiple and file seek offset
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* alignment.
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*/
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#ifndef HAVE_DIOATTR
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struct dioattr {
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__u32 d_mem; /* data buffer memory alignment */
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__u32 d_miniosz; /* min xfer size */
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__u32 d_maxiosz; /* max xfer size */
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};
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#endif
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/*
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* Structure for XFS_IOC_GETBMAP.
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* On input, fill in bmv_offset and bmv_length of the first structure
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* to indicate the area of interest in the file, and bmv_entries with
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* the number of array elements given back. The first structure is
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* updated on return to give the offset and length for the next call.
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*/
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#ifndef HAVE_GETBMAP
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struct getbmap {
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__s64 bmv_offset; /* file offset of segment in blocks */
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__s64 bmv_block; /* starting block (64-bit daddr_t) */
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__s64 bmv_length; /* length of segment, blocks */
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__s32 bmv_count; /* # of entries in array incl. 1st */
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__s32 bmv_entries; /* # of entries filled in (output) */
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};
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#endif
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/*
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* Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries
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* are used exactly as in the getbmap structure. The getbmapx structure
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* has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
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* is only used for the first structure. It contains input flags
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* specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled
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* in by the XFS_IOC_GETBMAPX command for each returned structure after
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* the first.
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*/
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#ifndef HAVE_GETBMAPX
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struct getbmapx {
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__s64 bmv_offset; /* file offset of segment in blocks */
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__s64 bmv_block; /* starting block (64-bit daddr_t) */
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__s64 bmv_length; /* length of segment, blocks */
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__s32 bmv_count; /* # of entries in array incl. 1st */
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__s32 bmv_entries; /* # of entries filled in (output). */
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__s32 bmv_iflags; /* input flags (1st structure) */
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__s32 bmv_oflags; /* output flags (after 1st structure)*/
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__s32 bmv_unused1; /* future use */
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__s32 bmv_unused2; /* future use */
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};
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#endif
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/* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */
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#define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */
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#define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */
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#define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */
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#define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */
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#define BMV_IF_NO_HOLES 0x10 /* Do not return holes */
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#define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */
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#define BMV_IF_VALID \
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(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \
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BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK)
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/* bmv_oflags values - returned for each non-header segment */
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#define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */
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#define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */
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#define BMV_OF_LAST 0x4 /* segment is the last in the file */
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#define BMV_OF_SHARED 0x8 /* segment shared with another file */
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/* fmr_owner special values for FS_IOC_GETFSMAP */
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#define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */
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#define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */
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#define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */
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#define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */
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#define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */
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#define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */
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#define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */
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#define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */
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#define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */
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#define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */
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/*
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* File segment locking set data type for 64 bit access.
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* Also used for all the RESV/FREE interfaces.
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*/
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typedef struct xfs_flock64 {
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__s16 l_type;
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__s16 l_whence;
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__s64 l_start;
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__s64 l_len; /* len == 0 means until end of file */
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__s32 l_sysid;
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__u32 l_pid;
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__s32 l_pad[4]; /* reserve area */
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} xfs_flock64_t;
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/*
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* Output for XFS_IOC_FSGEOMETRY_V1
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*/
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struct xfs_fsop_geom_v1 {
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__u32 blocksize; /* filesystem (data) block size */
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__u32 rtextsize; /* realtime extent size */
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__u32 agblocks; /* fsblocks in an AG */
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__u32 agcount; /* number of allocation groups */
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__u32 logblocks; /* fsblocks in the log */
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__u32 sectsize; /* (data) sector size, bytes */
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__u32 inodesize; /* inode size in bytes */
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__u32 imaxpct; /* max allowed inode space(%) */
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__u64 datablocks; /* fsblocks in data subvolume */
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__u64 rtblocks; /* fsblocks in realtime subvol */
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__u64 rtextents; /* rt extents in realtime subvol*/
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__u64 logstart; /* starting fsblock of the log */
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unsigned char uuid[16]; /* unique id of the filesystem */
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__u32 sunit; /* stripe unit, fsblocks */
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__u32 swidth; /* stripe width, fsblocks */
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__s32 version; /* structure version */
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__u32 flags; /* superblock version flags */
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__u32 logsectsize; /* log sector size, bytes */
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__u32 rtsectsize; /* realtime sector size, bytes */
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__u32 dirblocksize; /* directory block size, bytes */
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};
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/*
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* Output for XFS_IOC_FSGEOMETRY_V4
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*/
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struct xfs_fsop_geom_v4 {
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__u32 blocksize; /* filesystem (data) block size */
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__u32 rtextsize; /* realtime extent size */
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__u32 agblocks; /* fsblocks in an AG */
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__u32 agcount; /* number of allocation groups */
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__u32 logblocks; /* fsblocks in the log */
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__u32 sectsize; /* (data) sector size, bytes */
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__u32 inodesize; /* inode size in bytes */
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__u32 imaxpct; /* max allowed inode space(%) */
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__u64 datablocks; /* fsblocks in data subvolume */
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__u64 rtblocks; /* fsblocks in realtime subvol */
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__u64 rtextents; /* rt extents in realtime subvol*/
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__u64 logstart; /* starting fsblock of the log */
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unsigned char uuid[16]; /* unique id of the filesystem */
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__u32 sunit; /* stripe unit, fsblocks */
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__u32 swidth; /* stripe width, fsblocks */
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__s32 version; /* structure version */
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__u32 flags; /* superblock version flags */
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__u32 logsectsize; /* log sector size, bytes */
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__u32 rtsectsize; /* realtime sector size, bytes */
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__u32 dirblocksize; /* directory block size, bytes */
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__u32 logsunit; /* log stripe unit, bytes */
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};
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/*
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* Output for XFS_IOC_FSGEOMETRY
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*/
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struct xfs_fsop_geom {
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__u32 blocksize; /* filesystem (data) block size */
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__u32 rtextsize; /* realtime extent size */
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__u32 agblocks; /* fsblocks in an AG */
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__u32 agcount; /* number of allocation groups */
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__u32 logblocks; /* fsblocks in the log */
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__u32 sectsize; /* (data) sector size, bytes */
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__u32 inodesize; /* inode size in bytes */
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__u32 imaxpct; /* max allowed inode space(%) */
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__u64 datablocks; /* fsblocks in data subvolume */
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__u64 rtblocks; /* fsblocks in realtime subvol */
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__u64 rtextents; /* rt extents in realtime subvol*/
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__u64 logstart; /* starting fsblock of the log */
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unsigned char uuid[16]; /* unique id of the filesystem */
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__u32 sunit; /* stripe unit, fsblocks */
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__u32 swidth; /* stripe width, fsblocks */
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__s32 version; /* structure version */
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__u32 flags; /* superblock version flags */
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__u32 logsectsize; /* log sector size, bytes */
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__u32 rtsectsize; /* realtime sector size, bytes */
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__u32 dirblocksize; /* directory block size, bytes */
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__u32 logsunit; /* log stripe unit, bytes */
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uint32_t sick; /* o: unhealthy fs & rt metadata */
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uint32_t checked; /* o: checked fs & rt metadata */
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__u64 reserved[17]; /* reserved space */
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};
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#define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */
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#define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */
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#define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */
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#define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */
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#define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */
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#define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */
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/* Output for XFS_FS_COUNTS */
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typedef struct xfs_fsop_counts {
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__u64 freedata; /* free data section blocks */
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__u64 freertx; /* free rt extents */
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__u64 freeino; /* free inodes */
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__u64 allocino; /* total allocated inodes */
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} xfs_fsop_counts_t;
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/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
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typedef struct xfs_fsop_resblks {
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__u64 resblks;
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__u64 resblks_avail;
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} xfs_fsop_resblks_t;
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#define XFS_FSOP_GEOM_VERSION 0
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#define XFS_FSOP_GEOM_VERSION_V5 5
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#define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */
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#define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */
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#define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */
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#define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */
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#define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */
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#define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */
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#define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */
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#define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */
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#define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */
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#define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */
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#define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */
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#define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */
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#define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */
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/* -- Do not use -- (1 << 13) SGI parent pointers */
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#define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */
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#define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */
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#define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */
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#define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */
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#define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */
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#define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */
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#define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */
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#define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */
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#define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */
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#define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */
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/*
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* Minimum and maximum sizes need for growth checks.
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*
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* Block counts are in units of filesystem blocks, not basic blocks.
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*/
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#define XFS_MIN_AG_BLOCKS 64
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#define XFS_MIN_LOG_BLOCKS 512ULL
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#define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL)
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#define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL)
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/*
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* Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
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* 16MB or larger than 1TB.
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*/
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#define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */
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#define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */
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#define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE)
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#define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE)
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#define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1))
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/* keep the maximum size under 2^31 by a small amount */
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#define XFS_MAX_LOG_BYTES \
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((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
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/* Used for sanity checks on superblock */
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#define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
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#define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \
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(s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
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/*
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* Output for XFS_IOC_AG_GEOMETRY
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*/
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struct xfs_ag_geometry {
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uint32_t ag_number; /* i/o: AG number */
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uint32_t ag_length; /* o: length in blocks */
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uint32_t ag_freeblks; /* o: free space */
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uint32_t ag_icount; /* o: inodes allocated */
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uint32_t ag_ifree; /* o: inodes free */
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uint32_t ag_sick; /* o: sick things in ag */
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uint32_t ag_checked; /* o: checked metadata in ag */
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uint32_t ag_flags; /* i/o: flags for this ag */
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uint64_t ag_reserved[12];/* o: zero */
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};
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#define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */
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#define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */
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#define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */
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#define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */
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#define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */
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#define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */
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#define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */
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#define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */
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#define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */
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#define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */
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/*
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* Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
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*/
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typedef struct xfs_growfs_data {
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__u64 newblocks; /* new data subvol size, fsblocks */
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__u32 imaxpct; /* new inode space percentage limit */
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} xfs_growfs_data_t;
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typedef struct xfs_growfs_log {
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__u32 newblocks; /* new log size, fsblocks */
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__u32 isint; /* 1 if new log is internal */
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} xfs_growfs_log_t;
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typedef struct xfs_growfs_rt {
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__u64 newblocks; /* new realtime size, fsblocks */
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__u32 extsize; /* new realtime extent size, fsblocks */
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} xfs_growfs_rt_t;
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/*
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* Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
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*/
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typedef struct xfs_bstime {
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__kernel_long_t tv_sec; /* seconds */
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__s32 tv_nsec; /* and nanoseconds */
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} xfs_bstime_t;
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struct xfs_bstat {
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__u64 bs_ino; /* inode number */
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__u16 bs_mode; /* type and mode */
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__u16 bs_nlink; /* number of links */
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__u32 bs_uid; /* user id */
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__u32 bs_gid; /* group id */
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__u32 bs_rdev; /* device value */
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__s32 bs_blksize; /* block size */
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__s64 bs_size; /* file size */
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xfs_bstime_t bs_atime; /* access time */
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xfs_bstime_t bs_mtime; /* modify time */
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xfs_bstime_t bs_ctime; /* inode change time */
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int64_t bs_blocks; /* number of blocks */
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__u32 bs_xflags; /* extended flags */
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__s32 bs_extsize; /* extent size */
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__s32 bs_extents; /* number of extents */
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__u32 bs_gen; /* generation count */
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__u16 bs_projid_lo; /* lower part of project id */
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#define bs_projid bs_projid_lo /* (previously just bs_projid) */
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__u16 bs_forkoff; /* inode fork offset in bytes */
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__u16 bs_projid_hi; /* higher part of project id */
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uint16_t bs_sick; /* sick inode metadata */
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uint16_t bs_checked; /* checked inode metadata */
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unsigned char bs_pad[2]; /* pad space, unused */
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__u32 bs_cowextsize; /* cow extent size */
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__u32 bs_dmevmask; /* DMIG event mask */
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__u16 bs_dmstate; /* DMIG state info */
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__u16 bs_aextents; /* attribute number of extents */
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};
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/* New bulkstat structure that reports v5 features and fixes padding issues */
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struct xfs_bulkstat {
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uint64_t bs_ino; /* inode number */
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uint64_t bs_size; /* file size */
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uint64_t bs_blocks; /* number of blocks */
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uint64_t bs_xflags; /* extended flags */
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int64_t bs_atime; /* access time, seconds */
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int64_t bs_mtime; /* modify time, seconds */
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int64_t bs_ctime; /* inode change time, seconds */
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int64_t bs_btime; /* creation time, seconds */
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uint32_t bs_gen; /* generation count */
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uint32_t bs_uid; /* user id */
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uint32_t bs_gid; /* group id */
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uint32_t bs_projectid; /* project id */
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uint32_t bs_atime_nsec; /* access time, nanoseconds */
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uint32_t bs_mtime_nsec; /* modify time, nanoseconds */
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uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */
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uint32_t bs_btime_nsec; /* creation time, nanoseconds */
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uint32_t bs_blksize; /* block size */
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uint32_t bs_rdev; /* device value */
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uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */
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uint32_t bs_extsize_blks; /* extent size hint, blocks */
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uint32_t bs_nlink; /* number of links */
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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[]; /* 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[]; /* 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)
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#define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq)
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#define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq)
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#define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq)
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#define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq)
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#define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq)
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#define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq)
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#define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq)
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#define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq)
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#define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext)
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#define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data)
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#define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log)
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#define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt)
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#define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts)
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#define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks)
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#define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks)
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#define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
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#define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
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/* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
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#define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */
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#define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */
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/* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */
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#define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
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#define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
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#define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4)
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#define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t)
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#define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom)
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#define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req)
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#define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req)
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/* XFS_IOC_GETFSUUID ---------- deprecated 140 */
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#ifndef HAVE_BBMACROS
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/*
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* Block I/O parameterization. A basic block (BB) is the lowest size of
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* filesystem allocation, and must equal 512. Length units given to bio
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* routines are in BB's.
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*/
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#define BBSHIFT 9
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#define BBSIZE (1<<BBSHIFT)
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#define BBMASK (BBSIZE-1)
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#define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
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#define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT)
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#define BBTOB(bbs) ((bbs) << BBSHIFT)
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#endif
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#endif /* __XFS_FS_H__ */
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