aboutsummaryrefslogtreecommitdiff
path: root/fs/freevxfs/vxfs_inode.h
blob: f012abed125d61e1c3dd2cbb279c27b2aa7e2130 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * Copyright (c) 2016 Krzysztof Blaszkowski
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
#ifndef _VXFS_INODE_H_
#define _VXFS_INODE_H_

/*
 * Veritas filesystem driver - inode structure.
 *
 * This file contains the definition of the disk and core
 * inodes of the Veritas Filesystem.
 */


#define VXFS_ISIZE		0x100		/* Inode size */

#define VXFS_NDADDR		10		/* Number of direct addrs in inode */
#define VXFS_NIADDR		2		/* Number of indirect addrs in inode */
#define VXFS_NIMMED		96		/* Size of immediate data in inode */
#define VXFS_NTYPED		6		/* Num of typed extents */

#define VXFS_TYPED_OFFSETMASK	(0x00FFFFFFFFFFFFFFULL)
#define VXFS_TYPED_TYPEMASK	(0xFF00000000000000ULL)
#define VXFS_TYPED_TYPESHIFT	56

#define VXFS_TYPED_PER_BLOCK(sbp) \
	((sbp)->s_blocksize / sizeof(struct vxfs_typed))

/*
 * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
 */
enum {
	VXFS_TYPED_INDIRECT		= 1,
	VXFS_TYPED_DATA			= 2,
	VXFS_TYPED_INDIRECT_DEV4	= 3,
	VXFS_TYPED_DATA_DEV4		= 4,
};

/*
 * Data stored immediately in the inode.
 */
struct vxfs_immed {
	__u8			vi_immed[VXFS_NIMMED];
};

struct vxfs_ext4 {
	__fs32			ve4_spare;		/* ?? */
	__fs32			ve4_indsize;		/* Indirect extent size */
	__fs32			ve4_indir[VXFS_NIADDR];	/* Indirect extents */
	struct direct {					/* Direct extents */
		__fs32		extent;			/* Extent number */
		__fs32		size;			/* Size of extent */
	} ve4_direct[VXFS_NDADDR];
};

struct vxfs_typed {
	__fs64		vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	__fs32		vt_block;	/* Extent block */
	__fs32		vt_size;	/* Size in blocks */
};

struct vxfs_typed_dev4 {
	__fs64		vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	__fs64		vd4_block;	/* Extent block */
	__fs64		vd4_size;	/* Size in blocks */
	__fs32		vd4_dev;	/* Device ID */
	__u8		__pad1;
};

/*
 * The inode as contained on the physical device.
 */
struct vxfs_dinode {
	__fs32		vdi_mode;
	__fs32		vdi_nlink;	/* Link count */
	__fs32		vdi_uid;	/* UID */
	__fs32		vdi_gid;	/* GID */
	__fs64		vdi_size;	/* Inode size in bytes */
	__fs32		vdi_atime;	/* Last time accessed - sec */
	__fs32		vdi_autime;	/* Last time accessed - usec */
	__fs32		vdi_mtime;	/* Last modify time - sec */
	__fs32		vdi_mutime;	/* Last modify time - usec */
	__fs32		vdi_ctime;	/* Create time - sec */
	__fs32		vdi_cutime;	/* Create time - usec */
	__u8		vdi_aflags;	/* Allocation flags */
	__u8		vdi_orgtype;	/* Organisation type */
	__fs16		vdi_eopflags;
	__fs32		vdi_eopdata;
	union {
		__fs32			rdev;
		__fs32			dotdot;
		struct {
			__u32		reserved;
			__fs32		fixextsize;
		} i_regular;
		struct {
			__fs32		matchino;
			__fs32		fsetindex;
		} i_vxspec;
		__u64			align;
	} vdi_ftarea;
	__fs32		vdi_blocks;	/* How much blocks does inode occupy */
	__fs32		vdi_gen;	/* Inode generation */
	__fs64		vdi_version;	/* Version */
	union {
		struct vxfs_immed	immed;
		struct vxfs_ext4	ext4;
		struct vxfs_typed	typed[VXFS_NTYPED];
	} vdi_org;
	__fs32		vdi_iattrino;
};

#define vdi_rdev	vdi_ftarea.rdev
#define vdi_dotdot	vdi_ftarea.dotdot
#define vdi_fixextsize	vdi_ftarea.regular.fixextsize
#define vdi_matchino	vdi_ftarea.vxspec.matchino
#define vdi_fsetindex	vdi_ftarea.vxspec.fsetindex

#define vdi_immed	vdi_org.immed
#define vdi_ext4	vdi_org.ext4
#define vdi_typed	vdi_org.typed


/*
 * The inode as represented in the main memory.
 */
struct vxfs_inode_info {
	struct inode	vfs_inode;

	__u32		vii_mode;
	__u32		vii_nlink;	/* Link count */
	__u32		vii_uid;	/* UID */
	__u32		vii_gid;	/* GID */
	__u64		vii_size;	/* Inode size in bytes */
	__u32		vii_atime;	/* Last time accessed - sec */
	__u32		vii_autime;	/* Last time accessed - usec */
	__u32		vii_mtime;	/* Last modify time - sec */
	__u32		vii_mutime;	/* Last modify time - usec */
	__u32		vii_ctime;	/* Create time - sec */
	__u32		vii_cutime;	/* Create time - usec */
	__u8		vii_orgtype;	/* Organisation type */
	union {
		__u32			rdev;
		__u32			dotdot;
	} vii_ftarea;
	__u32		vii_blocks;	/* How much blocks does inode occupy */
	__u32		vii_gen;	/* Inode generation */
	union {
		struct vxfs_immed	immed;
		struct vxfs_ext4	ext4;
		struct vxfs_typed	typed[VXFS_NTYPED];
	} vii_org;
};

#define vii_rdev	vii_ftarea.rdev
#define vii_dotdot	vii_ftarea.dotdot

#define vii_immed	vii_org.immed
#define vii_ext4	vii_org.ext4
#define vii_typed	vii_org.typed

static inline struct vxfs_inode_info *VXFS_INO(struct inode *inode)
{
	return container_of(inode, struct vxfs_inode_info, vfs_inode);
}

#endif /* _VXFS_INODE_H_ */