[net-next-2.6.git] / fs / freevxfs / vxfs_inode.h

/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * 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 {
	u_int8_t	vi_immed[VXFS_NIMMED];
};

struct vxfs_ext4 {
	u_int32_t		ve4_spare;		/* ?? */
	u_int32_t		ve4_indsize;		/* Indirect extent size */
	vx_daddr_t		ve4_indir[VXFS_NIADDR];	/* Indirect extents */
	struct direct {					/* Direct extents */
		vx_daddr_t	extent;			/* Extent number */
		int32_t		size;			/* Size of extent */
	} ve4_direct[VXFS_NDADDR];
};

struct vxfs_typed {
	u_int64_t	vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	vx_daddr_t	vt_block;	/* Extent block */
	int32_t		vt_size;	/* Size in blocks */
};

struct vxfs_typed_dev4 {
	u_int64_t	vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	u_int64_t	vd4_block;	/* Extent block */
	u_int64_t	vd4_size;	/* Size in blocks */
	int32_t		vd4_dev;	/* Device ID */
	u_int32_t	__pad1;
};

/*
 * The inode as contained on the physical device.
 */
struct vxfs_dinode {
	int32_t		vdi_mode;
	u_int32_t	vdi_nlink;	/* Link count */
	u_int32_t	vdi_uid;	/* UID */
	u_int32_t	vdi_gid;	/* GID */
	u_int64_t	vdi_size;	/* Inode size in bytes */
	u_int32_t	vdi_atime;	/* Last time accessed - sec */
	u_int32_t	vdi_autime;	/* Last time accessed - usec */
	u_int32_t	vdi_mtime;	/* Last modify time - sec */
	u_int32_t	vdi_mutime;	/* Last modify time - usec */
	u_int32_t	vdi_ctime;	/* Create time - sec */
	u_int32_t	vdi_cutime;	/* Create time - usec */
	u_int8_t	vdi_aflags;	/* Allocation flags */
	u_int8_t	vdi_orgtype;	/* Organisation type */
	u_int16_t	vdi_eopflags;
	u_int32_t	vdi_eopdata;
	union {
		u_int32_t		rdev;
		u_int32_t		dotdot;
		struct {
			u_int32_t	reserved;
			u_int32_t	fixextsize;
		} i_regular;
		struct {
			u_int32_t	matchino;
			u_int32_t	fsetindex;
		} i_vxspec;
		u_int64_t		align;
	} vdi_ftarea;
	u_int32_t	vdi_blocks;	/* How much blocks does inode occupy */
	u_int32_t	vdi_gen;	/* Inode generation */
	u_int64_t	vdi_version;	/* Version */
	union {
		struct vxfs_immed	immed;
		struct vxfs_ext4	ext4;
		struct vxfs_typed	typed[VXFS_NTYPED];
	} vdi_org;
	u_int32_t	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.
 *
 * TBD: This should become a separate structure...
 */
#define vxfs_inode_info	vxfs_dinode

#define vii_mode	vdi_mode
#define vii_uid		vdi_uid
#define vii_gid		vdi_gid
#define vii_nlink	vdi_nlink
#define vii_size	vdi_size
#define vii_atime	vdi_atime
#define vii_ctime	vdi_ctime
#define vii_mtime	vdi_mtime
#define vii_blocks	vdi_blocks
#define vii_org		vdi_org
#define vii_orgtype	vdi_orgtype
#define vii_gen		vdi_gen

#define vii_rdev	vdi_ftarea.rdev
#define vii_dotdot	vdi_ftarea.dotdot
#define vii_fixextsize	vdi_ftarea.regular.fixextsize
#define vii_matchino	vdi_ftarea.vxspec.matchino
#define vii_fsetindex	vdi_ftarea.vxspec.fsetindex

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

#endif /* _VXFS_INODE_H_ */
Commit	Line	Data
1da177e4 LT	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_ */