diff options
Diffstat (limited to 'fs/freevxfs/vxfs_inode.h')
| -rw-r--r-- | fs/freevxfs/vxfs_inode.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/fs/freevxfs/vxfs_inode.h b/fs/freevxfs/vxfs_inode.h new file mode 100644 index 00000000..240aeb11 --- /dev/null +++ b/fs/freevxfs/vxfs_inode.h @@ -0,0 +1,180 @@ +/* + * 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_ */ |