ext2_dinode.h revision 217585 
1/*-
2 * Copyright (c) 2009 Aditya Sarawgi
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 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/fs/ext2fs/ext2_dinode.h 217585 2011-01-19 16:55:32Z jhb $
27 */
28
29#ifndef _FS_EXT2FS_EXT2_DINODE_H_
30#define _FS_EXT2FS_EXT2_DINODE_H_
31
32#define e2di_size_high	e2di_dacl
33
34/*
35 * Inode flags
36 * The current implementation uses only EXT2_IMMUTABLE and EXT2_APPEND flags
37 */
38#define EXT2_SECRM		0x00000001	/* Secure deletion */
39#define EXT2_UNRM		0x00000002	/* Undelete */
40#define EXT2_COMPR		0x00000004	/* Compress file */
41#define EXT2_SYNC		0x00000008	/* Synchronous updates */
42#define EXT2_IMMUTABLE		0x00000010	/* Immutable file */
43#define EXT2_APPEND		0x00000020	/* writes to file may only append */
44#define EXT2_NODUMP		0x00000040	/* do not dump file */
45#define EXT2_NOATIME		0x00000080	/* do not update atime */
46
47
48/*
49 * Structure of an inode on the disk
50 */
51struct ext2fs_dinode {
52	u_int16_t	e2di_mode;	/*   0: IFMT, permissions; see below. */
53	u_int16_t	e2di_uid;	/*   2: Owner UID */
54	u_int32_t	e2di_size;	/*	 4: Size (in bytes) */
55	u_int32_t	e2di_atime;	/*	 8: Access time */
56	u_int32_t	e2di_ctime;	/*	12: Create time */
57	u_int32_t	e2di_mtime;	/*	16: Modification time */
58	u_int32_t	e2di_dtime;	/*	20: Deletion time */
59	u_int16_t	e2di_gid;	/*  24: Owner GID */
60	u_int16_t	e2di_nlink;	/*  26: File link count */
61	u_int32_t	e2di_nblock;	/*  28: Blocks count */
62	u_int32_t	e2di_flags;	/*  32: Status flags (chflags) */
63	u_int32_t	e2di_linux_reserved1; /* 36 */
64	u_int32_t	e2di_blocks[EXT2_N_BLOCKS]; /* 40: disk blocks */
65	u_int32_t	e2di_gen;	/* 100: generation number */
66	u_int32_t	e2di_facl;	/* 104: file ACL (not implemented) */
67	u_int32_t	e2di_dacl;	/* 108: dir ACL (not implemented) */
68	u_int32_t	e2di_faddr;	/* 112: fragment address */
69	u_int8_t	e2di_nfrag;	/* 116: fragment number */
70	u_int8_t	e2di_fsize;	/* 117: fragment size */
71	u_int16_t	e2di_linux_reserved2; /* 118 */
72	u_int16_t	e2di_uid_high;	/* 120: Owner UID top 16 bits */
73	u_int16_t	e2di_gid_high;	/* 122: Owner GID top 16 bits */
74	u_int32_t	e2di_linux_reserved3; /* 124 */
75};
76
77#endif /* !_FS_EXT2FS_EXT2_DINODE_H_ */
78
79