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 */
34enum {
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 */
44struct vxfs_immed {
45	__u8			vi_immed[VXFS_NIMMED];
46};
47
48struct 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
58struct 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
64struct 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 */
75struct 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 */
129struct 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
164static 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