1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2000-2001 Christoph Hellwig.
4 * Copyright (c) 2016 Krzysztof Blaszkowski
5 */
6 #ifndef _VXFS_INODE_H_
7 #define _VXFS_INODE_H_
8
9 /*
10 * Veritas filesystem driver - inode structure.
11 *
12 * This file contains the definition of the disk and core
13 * inodes of the Veritas Filesystem.
14 */
15
16
17 #define VXFS_ISIZE 0x100 /* Inode size */
18
19 #define VXFS_NDADDR 10 /* Number of direct addrs in inode */
20 #define VXFS_NIADDR 2 /* Number of indirect addrs in inode */
21 #define VXFS_NIMMED 96 /* Size of immediate data in inode */
22 #define VXFS_NTYPED 6 /* Num of typed extents */
23
24 #define VXFS_TYPED_OFFSETMASK (0x00FFFFFFFFFFFFFFULL)
25 #define VXFS_TYPED_TYPEMASK (0xFF00000000000000ULL)
26 #define VXFS_TYPED_TYPESHIFT 56
27
28 #define VXFS_TYPED_PER_BLOCK(sbp) \
29 ((sbp)->s_blocksize / sizeof(struct vxfs_typed))
30
31 /*
32 * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
33 */
34 enum {
35 VXFS_TYPED_INDIRECT = 1,
36 VXFS_TYPED_DATA = 2,
37 VXFS_TYPED_INDIRECT_DEV4 = 3,
38 VXFS_TYPED_DATA_DEV4 = 4,
39 };
40
41 /*
42 * Data stored immediately in the inode.
43 */
44 struct vxfs_immed {
45 __u8 vi_immed[VXFS_NIMMED];
46 };
47
48 struct vxfs_ext4 {
49 __fs32 ve4_spare; /* ?? */
50 __fs32 ve4_indsize; /* Indirect extent size */
51 __fs32 ve4_indir[VXFS_NIADDR]; /* Indirect extents */
52 struct direct { /* Direct extents */
53 __fs32 extent; /* Extent number */
54 __fs32 size; /* Size of extent */
55 } ve4_direct[VXFS_NDADDR];
56 };
57
58 struct vxfs_typed {
59 __fs64 vt_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
60 __fs32 vt_block; /* Extent block */
61 __fs32 vt_size; /* Size in blocks */
62 };
63
64 struct vxfs_typed_dev4 {
65 __fs64 vd4_hdr; /* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
66 __fs64 vd4_block; /* Extent block */
67 __fs64 vd4_size; /* Size in blocks */
68 __fs32 vd4_dev; /* Device ID */
69 __u8 __pad1;
70 };
71
72 /*
73 * The inode as contained on the physical device.
74 */
75 struct vxfs_dinode {
76 __fs32 vdi_mode;
77 __fs32 vdi_nlink; /* Link count */
78 __fs32 vdi_uid; /* UID */
79 __fs32 vdi_gid; /* GID */
80 __fs64 vdi_size; /* Inode size in bytes */
81 __fs32 vdi_atime; /* Last time accessed - sec */
82 __fs32 vdi_autime; /* Last time accessed - usec */
83 __fs32 vdi_mtime; /* Last modify time - sec */
84 __fs32 vdi_mutime; /* Last modify time - usec */
85 __fs32 vdi_ctime; /* Create time - sec */
86 __fs32 vdi_cutime; /* Create time - usec */
87 __u8 vdi_aflags; /* Allocation flags */
88 __u8 vdi_orgtype; /* Organisation type */
89 __fs16 vdi_eopflags;
90 __fs32 vdi_eopdata;
91 union {
92 __fs32 rdev;
93 __fs32 dotdot;
94 struct {
95 __u32 reserved;
96 __fs32 fixextsize;
97 } i_regular;
98 struct {
99 __fs32 matchino;
100 __fs32 fsetindex;
101 } i_vxspec;
102 __u64 align;
103 } vdi_ftarea;
104 __fs32 vdi_blocks; /* How much blocks does inode occupy */
105 __fs32 vdi_gen; /* Inode generation */
106 __fs64 vdi_version; /* Version */
107 union {
108 struct vxfs_immed immed;
109 struct vxfs_ext4 ext4;
110 struct vxfs_typed typed[VXFS_NTYPED];
111 } vdi_org;
112 __fs32 vdi_iattrino;
113 };
114
115 #define vdi_rdev vdi_ftarea.rdev
116 #define vdi_dotdot vdi_ftarea.dotdot
117 #define vdi_fixextsize vdi_ftarea.regular.fixextsize
118 #define vdi_matchino vdi_ftarea.vxspec.matchino
119 #define vdi_fsetindex vdi_ftarea.vxspec.fsetindex
120
121 #define vdi_immed vdi_org.immed
122 #define vdi_ext4 vdi_org.ext4
123 #define vdi_typed vdi_org.typed
124
125
126 /*
127 * The inode as represented in the main memory.
128 */
129 struct vxfs_inode_info {
130 struct inode vfs_inode;
131
132 __u32 vii_mode;
133 __u32 vii_nlink; /* Link count */
134 __u32 vii_uid; /* UID */
135 __u32 vii_gid; /* GID */
136 __u64 vii_size; /* Inode size in bytes */
137 __u32 vii_atime; /* Last time accessed - sec */
138 __u32 vii_autime; /* Last time accessed - usec */
139 __u32 vii_mtime; /* Last modify time - sec */
140 __u32 vii_mutime; /* Last modify time - usec */
141 __u32 vii_ctime; /* Create time - sec */
142 __u32 vii_cutime; /* Create time - usec */
143 __u8 vii_orgtype; /* Organisation type */
144 union {
145 __u32 rdev;
146 __u32 dotdot;
147 } vii_ftarea;
148 __u32 vii_blocks; /* How much blocks does inode occupy */
149 __u32 vii_gen; /* Inode generation */
150 union {
151 struct vxfs_immed immed;
152 struct vxfs_ext4 ext4;
153 struct vxfs_typed typed[VXFS_NTYPED];
154 } vii_org;
155 };
156
157 #define vii_rdev vii_ftarea.rdev
158 #define vii_dotdot vii_ftarea.dotdot
159
160 #define vii_immed vii_org.immed
161 #define vii_ext4 vii_org.ext4
162 #define vii_typed vii_org.typed
163
164 static inline struct vxfs_inode_info *VXFS_INO(struct inode *inode)
165 {
166 return container_of(inode, struct vxfs_inode_info, vfs_inode);
167 }
168
169 #endif /* _VXFS_INODE_H_ */
170
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