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