1/* 2 * Copyright (c) 2000-2001 Christoph Hellwig. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions, and the following disclaimer, 10 * without modification. 11 * 2. The name of the author may not be used to endorse or promote products 12 * derived from this software without specific prior written permission. 13 * 14 * Alternatively, this software may be distributed under the terms of the 15 * GNU General Public License ("GPL"). 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30#ifndef _VXFS_INODE_H_ 31#define _VXFS_INODE_H_ 32 33/* 34 * Veritas filesystem driver - inode structure. 35 * 36 * This file contains the definition of the disk and core 37 * inodes of the Veritas Filesystem. 38 */ 39 40 41#define VXFS_ISIZE 0x100 /* Inode size */ 42 43#define VXFS_NDADDR 10 /* Number of direct addrs in inode */ 44#define VXFS_NIADDR 2 /* Number of indirect addrs in inode */ 45#define VXFS_NIMMED 96 /* Size of immediate data in inode */ 46#define VXFS_NTYPED 6 /* Num of typed extents */ 47 48#define VXFS_TYPED_OFFSETMASK (0x00FFFFFFFFFFFFFFULL) 49#define VXFS_TYPED_TYPEMASK (0xFF00000000000000ULL) 50#define VXFS_TYPED_TYPESHIFT 56 51 52#define VXFS_TYPED_PER_BLOCK(sbp) \ 53 ((sbp)->s_blocksize / sizeof(struct vxfs_typed)) 54 55/* 56 * Possible extent descriptor types for %VXFS_ORG_TYPED extents. 57 */ 58enum { 59 VXFS_TYPED_INDIRECT = 1, 60 VXFS_TYPED_DATA = 2, 61 VXFS_TYPED_INDIRECT_DEV4 = 3, 62 VXFS_TYPED_DATA_DEV4 = 4, 63}; 64 65/* 66 * Data stored immediately in the inode. 67 */ 68struct vxfs_immed { 69 u_int8_t vi_immed[VXFS_NIMMED]; 70}; 71 72struct vxfs_ext4 { 73 u_int32_t ve4_spare; /* ?? */ 74 u_int32_t ve4_indsize; /* Indirect extent size */ 75 vx_daddr_t ve4_indir[VXFS_NIADDR]; /* Indirect extents */ 76 struct direct { /* Direct extents */ 77 vx_daddr_t extent; /* Extent number */ 78 int32_t size; /* Size of extent */ 79 } ve4_direct[VXFS_NDADDR]; 80}; 81 82struct vxfs_typed { 83 u_int64_t vt_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */ 84 vx_daddr_t vt_block; /* Extent block */ 85 int32_t vt_size; /* Size in blocks */ 86}; 87 88struct vxfs_typed_dev4 { 89 u_int64_t vd4_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */ 90 u_int64_t vd4_block; /* Extent block */ 91 u_int64_t vd4_size; /* Size in blocks */ 92 int32_t vd4_dev; /* Device ID */ 93 u_int32_t __pad1; 94}; 95 96/* 97 * The inode as contained on the physical device. 98 */ 99struct vxfs_dinode { 100 int32_t vdi_mode; 101 u_int32_t vdi_nlink; /* Link count */ 102 u_int32_t vdi_uid; /* UID */ 103 u_int32_t vdi_gid; /* GID */ 104 u_int64_t vdi_size; /* Inode size in bytes */ 105 u_int32_t vdi_atime; /* Last time accessed - sec */ 106 u_int32_t vdi_autime; /* Last time accessed - usec */ 107 u_int32_t vdi_mtime; /* Last modify time - sec */ 108 u_int32_t vdi_mutime; /* Last modify time - usec */ 109 u_int32_t vdi_ctime; /* Create time - sec */ 110 u_int32_t vdi_cutime; /* Create time - usec */ 111 u_int8_t vdi_aflags; /* Allocation flags */ 112 u_int8_t vdi_orgtype; /* Organisation type */ 113 u_int16_t vdi_eopflags; 114 u_int32_t vdi_eopdata; 115 union { 116 u_int32_t rdev; 117 u_int32_t dotdot; 118 struct { 119 u_int32_t reserved; 120 u_int32_t fixextsize; 121 } i_regular; 122 struct { 123 u_int32_t matchino; 124 u_int32_t fsetindex; 125 } i_vxspec; 126 u_int64_t align; 127 } vdi_ftarea; 128 u_int32_t vdi_blocks; /* How much blocks does inode occupy */ 129 u_int32_t vdi_gen; /* Inode generation */ 130 u_int64_t vdi_version; /* Version */ 131 union { 132 struct vxfs_immed immed; 133 struct vxfs_ext4 ext4; 134 struct vxfs_typed typed[VXFS_NTYPED]; 135 } vdi_org; 136 u_int32_t vdi_iattrino; 137}; 138 139#define vdi_rdev vdi_ftarea.rdev 140#define vdi_dotdot vdi_ftarea.dotdot 141#define vdi_fixextsize vdi_ftarea.regular.fixextsize 142#define vdi_matchino vdi_ftarea.vxspec.matchino 143#define vdi_fsetindex vdi_ftarea.vxspec.fsetindex 144 145#define vdi_immed vdi_org.immed 146#define vdi_ext4 vdi_org.ext4 147#define vdi_typed vdi_org.typed 148 149 150/* 151 * The inode as represented in the main memory. 152 * 153 * TBD: This should become a separate structure... 154 */ 155#define vxfs_inode_info vxfs_dinode 156 157#define vii_mode vdi_mode 158#define vii_uid vdi_uid 159#define vii_gid vdi_gid 160#define vii_nlink vdi_nlink 161#define vii_size vdi_size 162#define vii_atime vdi_atime 163#define vii_ctime vdi_ctime 164#define vii_mtime vdi_mtime 165#define vii_blocks vdi_blocks 166#define vii_org vdi_org 167#define vii_orgtype vdi_orgtype 168#define vii_gen vdi_gen 169 170#define vii_rdev vdi_ftarea.rdev 171#define vii_dotdot vdi_ftarea.dotdot 172#define vii_fixextsize vdi_ftarea.regular.fixextsize 173#define vii_matchino vdi_ftarea.vxspec.matchino 174#define vii_fsetindex vdi_ftarea.vxspec.fsetindex 175 176#define vii_immed vdi_org.immed 177#define vii_ext4 vdi_org.ext4 178#define vii_typed vdi_org.typed 179 180#endif /* _VXFS_INODE_H_ */ 181