vxfs_inode.h
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/*
* Copyright (c) 2000-2001 Christoph Hellwig.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL").
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _VXFS_INODE_H_
#define _VXFS_INODE_H_
/*
* Veritas filesystem driver - inode structure.
*
* This file contains the definition of the disk and core
* inodes of the Veritas Filesystem.
*/
#define VXFS_ISIZE 0x100 /* Inode size */
#define VXFS_NDADDR 10 /* Number of direct addrs in inode */
#define VXFS_NIADDR 2 /* Number of indirect addrs in inode */
#define VXFS_NIMMED 96 /* Size of immediate data in inode */
#define VXFS_NTYPED 6 /* Num of typed extents */
#define VXFS_TYPED_OFFSETMASK (0x00FFFFFFFFFFFFFFULL)
#define VXFS_TYPED_TYPEMASK (0xFF00000000000000ULL)
#define VXFS_TYPED_TYPESHIFT 56
#define VXFS_TYPED_PER_BLOCK(sbp) \
((sbp)->s_blocksize / sizeof(struct vxfs_typed))
/*
* Possible extent descriptor types for %VXFS_ORG_TYPED extents.
*/
enum {
VXFS_TYPED_INDIRECT = 1,
VXFS_TYPED_DATA = 2,
VXFS_TYPED_INDIRECT_DEV4 = 3,
VXFS_TYPED_DATA_DEV4 = 4,
};
/*
* Data stored immediately in the inode.
*/
struct vxfs_immed {
u_int8_t vi_immed[VXFS_NIMMED];
};
struct vxfs_ext4 {
u_int32_t ve4_spare; /* ?? */
u_int32_t ve4_indsize; /* Indirect extent size */
vx_daddr_t ve4_indir[VXFS_NIADDR]; /* Indirect extents */
struct direct { /* Direct extents */
vx_daddr_t extent; /* Extent number */
int32_t size; /* Size of extent */
} ve4_direct[VXFS_NDADDR];
};
struct vxfs_typed {
u_int64_t vt_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
vx_daddr_t vt_block; /* Extent block */
int32_t vt_size; /* Size in blocks */
};
struct vxfs_typed_dev4 {
u_int64_t vd4_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
u_int64_t vd4_block; /* Extent block */
u_int64_t vd4_size; /* Size in blocks */
int32_t vd4_dev; /* Device ID */
u_int32_t __pad1;
};
/*
* The inode as contained on the physical device.
*/
struct vxfs_dinode {
int32_t vdi_mode;
u_int32_t vdi_nlink; /* Link count */
u_int32_t vdi_uid; /* UID */
u_int32_t vdi_gid; /* GID */
u_int64_t vdi_size; /* Inode size in bytes */
u_int32_t vdi_atime; /* Last time accessed - sec */
u_int32_t vdi_autime; /* Last time accessed - usec */
u_int32_t vdi_mtime; /* Last modify time - sec */
u_int32_t vdi_mutime; /* Last modify time - usec */
u_int32_t vdi_ctime; /* Create time - sec */
u_int32_t vdi_cutime; /* Create time - usec */
u_int8_t vdi_aflags; /* Allocation flags */
u_int8_t vdi_orgtype; /* Organisation type */
u_int16_t vdi_eopflags;
u_int32_t vdi_eopdata;
union {
u_int32_t rdev;
u_int32_t dotdot;
struct {
u_int32_t reserved;
u_int32_t fixextsize;
} i_regular;
struct {
u_int32_t matchino;
u_int32_t fsetindex;
} i_vxspec;
u_int64_t align;
} vdi_ftarea;
u_int32_t vdi_blocks; /* How much blocks does inode occupy */
u_int32_t vdi_gen; /* Inode generation */
u_int64_t vdi_version; /* Version */
union {
struct vxfs_immed immed;
struct vxfs_ext4 ext4;
struct vxfs_typed typed[VXFS_NTYPED];
} vdi_org;
u_int32_t vdi_iattrino;
};
#define vdi_rdev vdi_ftarea.rdev
#define vdi_dotdot vdi_ftarea.dotdot
#define vdi_fixextsize vdi_ftarea.regular.fixextsize
#define vdi_matchino vdi_ftarea.vxspec.matchino
#define vdi_fsetindex vdi_ftarea.vxspec.fsetindex
#define vdi_immed vdi_org.immed
#define vdi_ext4 vdi_org.ext4
#define vdi_typed vdi_org.typed
/*
* The inode as represented in the main memory.
*
* TBD: This should become a separate structure...
*/
#define vxfs_inode_info vxfs_dinode
#define vii_mode vdi_mode
#define vii_uid vdi_uid
#define vii_gid vdi_gid
#define vii_nlink vdi_nlink
#define vii_size vdi_size
#define vii_atime vdi_atime
#define vii_ctime vdi_ctime
#define vii_mtime vdi_mtime
#define vii_blocks vdi_blocks
#define vii_org vdi_org
#define vii_orgtype vdi_orgtype
#define vii_gen vdi_gen
#define vii_rdev vdi_ftarea.rdev
#define vii_dotdot vdi_ftarea.dotdot
#define vii_fixextsize vdi_ftarea.regular.fixextsize
#define vii_matchino vdi_ftarea.vxspec.matchino
#define vii_fsetindex vdi_ftarea.vxspec.fsetindex
#define vii_immed vdi_org.immed
#define vii_ext4 vdi_org.ext4
#define vii_typed vdi_org.typed
#endif /* _VXFS_INODE_H_ */