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 
VXFS_INO(struct inode * inode)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