497 lines
18 KiB
C
497 lines
18 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
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*/
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#ifndef HAVE_FSXATTR
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struct fsxattr {
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__u32 fsx_xflags; /* xflags field value (get/set) */
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__u32 fsx_extsize; /* extsize field value (get/set)*/
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__u32 fsx_nextents; /* nextents field value (get) */
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__u32 fsx_projid; /* project identifier (get/set) */
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unsigned char fsx_pad[12];
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};
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#endif
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/*
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* Flags for the bs_xflags/fsx_xflags field
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* There should be a one-to-one correspondence between these flags and the
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* XFS_DIFLAG_s.
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*/
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#define XFS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
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#define XFS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
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#define XFS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
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#define XFS_XFLAG_APPEND 0x00000010 /* all writes append */
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#define XFS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
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#define XFS_XFLAG_NOATIME 0x00000040 /* do not update access time */
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#define XFS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
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#define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
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#define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
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#define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
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#define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
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#define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
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#define XFS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
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#define XFS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
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#define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
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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 /* Do not generate DMAPI read event */
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#define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */
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#define BMV_IF_VALID (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC)
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#ifdef __KERNEL__
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#define BMV_IF_EXTENDED 0x40000000 /* getpmapx if set */
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#endif
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/* bmv_oflags values - returned for for each non-header segment */
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#define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */
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/* Convert getbmap <-> getbmapx - move fields from p1 to p2. */
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#define GETBMAP_CONVERT(p1,p2) { \
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p2.bmv_offset = p1.bmv_offset; \
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p2.bmv_block = p1.bmv_block; \
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p2.bmv_length = p1.bmv_length; \
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p2.bmv_count = p1.bmv_count; \
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p2.bmv_entries = p1.bmv_entries; }
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/*
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* Structure for XFS_IOC_FSSETDM.
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* For use by backup and restore programs to set the XFS on-disk inode
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* fields di_dmevmask and di_dmstate. These must be set to exactly and
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* only values previously obtained via xfs_bulkstat! (Specifically the
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* xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
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*/
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#ifndef HAVE_FSDMIDATA
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struct fsdmidata {
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__u32 fsd_dmevmask; /* corresponds to di_dmevmask */
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__u16 fsd_padding;
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__u16 fsd_dmstate; /* corresponds to di_dmstate */
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};
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#endif
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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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typedef 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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} xfs_fsop_geom_v1_t;
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/*
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* Output for XFS_IOC_FSGEOMETRY
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*/
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typedef 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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} xfs_fsop_geom_t;
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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_FLAGS_ATTR 0x0001 /* attributes in use */
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#define XFS_FSOP_GEOM_FLAGS_NLINK 0x0002 /* 32-bit nlink values */
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#define XFS_FSOP_GEOM_FLAGS_QUOTA 0x0004 /* quotas enabled */
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#define XFS_FSOP_GEOM_FLAGS_IALIGN 0x0008 /* inode alignment */
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#define XFS_FSOP_GEOM_FLAGS_DALIGN 0x0010 /* large data alignment */
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#define XFS_FSOP_GEOM_FLAGS_SHARED 0x0020 /* read-only shared */
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#define XFS_FSOP_GEOM_FLAGS_EXTFLG 0x0040 /* special extent flag */
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#define XFS_FSOP_GEOM_FLAGS_DIRV2 0x0080 /* directory version 2 */
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#define XFS_FSOP_GEOM_FLAGS_LOGV2 0x0100 /* log format version 2 */
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#define XFS_FSOP_GEOM_FLAGS_SECTOR 0x0200 /* sector sizes >1BB */
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#define XFS_FSOP_GEOM_FLAGS_ATTR2 0x0400 /* inline attributes rework */
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#define XFS_FSOP_GEOM_FLAGS_LAZYSB 0x4000 /* lazy superblock 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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#define XFS_MIN_AG_BLOCKS 64
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#define XFS_MIN_LOG_BLOCKS 512
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#define XFS_MAX_LOG_BLOCKS (64 * 1024)
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#define XFS_MIN_LOG_BYTES (256 * 1024)
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#define XFS_MAX_LOG_BYTES (128 * 1024 * 1024)
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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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time_t tv_sec; /* seconds */
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__s32 tv_nsec; /* and nanoseconds */
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} xfs_bstime_t;
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typedef 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; /* project id */
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unsigned char bs_pad[14]; /* pad space, unused */
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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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} xfs_bstat_t;
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/*
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* The user-level BulkStat Request interface structure.
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*/
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typedef struct xfs_fsop_bulkreq {
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__u64 __user *lastip; /* last inode # pointer */
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__s32 icount; /* count of entries in buffer */
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void __user *ubuffer;/* user buffer for inode desc. */
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__s32 __user *ocount; /* output count pointer */
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} xfs_fsop_bulkreq_t;
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/*
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* Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
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*/
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typedef struct xfs_inogrp {
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__u64 xi_startino; /* starting inode number */
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__s32 xi_alloccount; /* # bits set in allocmask */
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__u64 xi_allocmask; /* mask of allocated inodes */
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} xfs_inogrp_t;
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/*
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* Error injection.
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*/
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typedef struct xfs_error_injection {
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__s32 fd;
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__s32 errtag;
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} xfs_error_injection_t;
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/*
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* The user-level Handle Request interface structure.
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*/
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typedef struct xfs_fsop_handlereq {
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__u32 fd; /* fd for FD_TO_HANDLE */
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void __user *path; /* user pathname */
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__u32 oflags; /* open flags */
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void __user *ihandle;/* user supplied handle */
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__u32 ihandlen; /* user supplied length */
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void __user *ohandle;/* user buffer for handle */
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__u32 __user *ohandlen;/* user buffer length */
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} xfs_fsop_handlereq_t;
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/*
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* Compound structures for passing args through Handle Request interfaces
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* xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
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* - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
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* XFS_IOC_ATTRMULTI_BY_HANDLE
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*/
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typedef struct xfs_fsop_setdm_handlereq {
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struct xfs_fsop_handlereq hreq; /* handle information */
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struct fsdmidata __user *data; /* DMAPI data */
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} xfs_fsop_setdm_handlereq_t;
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typedef struct xfs_attrlist_cursor {
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__u32 opaque[4];
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} xfs_attrlist_cursor_t;
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typedef struct xfs_fsop_attrlist_handlereq {
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struct xfs_fsop_handlereq hreq; /* handle interface structure */
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struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */
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__u32 flags; /* which namespace to use */
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__u32 buflen; /* length of buffer supplied */
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void __user *buffer; /* returned names */
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} xfs_fsop_attrlist_handlereq_t;
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typedef struct xfs_attr_multiop {
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__u32 am_opcode;
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__s32 am_error;
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void __user *am_attrname;
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void __user *am_attrvalue;
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__u32 am_length;
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__u32 am_flags;
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} xfs_attr_multiop_t;
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typedef struct xfs_fsop_attrmulti_handlereq {
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struct xfs_fsop_handlereq hreq; /* handle interface structure */
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__u32 opcount;/* count of following multiop */
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struct xfs_attr_multiop __user *ops; /* attr_multi data */
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} xfs_fsop_attrmulti_handlereq_t;
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/*
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* per machine unique filesystem identifier types.
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*/
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typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
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typedef struct xfs_fid {
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__u16 fid_len; /* length of remainder */
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__u16 fid_pad;
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__u32 fid_gen; /* generation number */
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__u64 fid_ino; /* 64 bits inode number */
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} xfs_fid_t;
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typedef struct xfs_handle {
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union {
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__s64 align; /* force alignment of ha_fid */
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xfs_fsid_t _ha_fsid; /* unique file system identifier */
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} ha_u;
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xfs_fid_t ha_fid; /* file system specific file ID */
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} xfs_handle_t;
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#define ha_fsid ha_u._ha_fsid
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#define XFS_HSIZE(handle) (((char *) &(handle).ha_fid.fid_pad \
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- (char *) &(handle)) \
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+ (handle).ha_fid.fid_len)
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/*
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* Flags for going down operation
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*/
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#define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */
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#define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
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#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
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/*
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* ioctl commands that are used by Linux filesystems
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*/
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#define XFS_IOC_GETXFLAGS _IOR('f', 1, long)
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#define XFS_IOC_SETXFLAGS _IOW('f', 2, long)
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#define XFS_IOC_GETVERSION _IOR('v', 1, long)
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/*
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* ioctl commands that replace IRIX fcntl()'s
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* For 'documentation' purposed more than anything else,
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* the "cmd #" field reflects the IRIX fcntl number.
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*/
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#define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64)
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#define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64)
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#define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
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#define XFS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr)
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#define XFS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr)
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#define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64)
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#define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64)
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#define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
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#define XFS_IOC_FSSETDM _IOW ('X', 39, struct fsdmidata)
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#define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64)
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#define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64)
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#define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64)
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#define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64)
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#define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap)
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#define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr)
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/* XFS_IOC_SETBIOSIZE ---- deprecated 46 */
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/* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
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#define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
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/*
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* ioctl commands that replace IRIX syssgi()'s
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*/
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#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)
|
|
#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)
|
|
#define XFS_IOC_THAW _IOWR('X', 120, int)
|
|
#define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
|
|
#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 _IOR ('X', 124, struct xfs_fsop_geom)
|
|
#define XFS_IOC_GOINGDOWN _IOR ('X', 125, __uint32_t)
|
|
/* 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__ */
|