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 */
58 enum {
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 */
68 struct vxfs_immed {
69 u_int8_t vi_immed[VXFS_NIMMED];
70 };
71
72 struct 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
82 struct 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
88 struct 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 */
99 struct 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
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