2 * Copyright (c) 2009 Aditya Sarawgi
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
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23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _FS_EXT2FS_EXT2_DINODE_H_
30 #define _FS_EXT2FS_EXT2_DINODE_H_
32 #define e2di_size_high e2di_dacl
36 * The current implementation uses only EXT2_IMMUTABLE and EXT2_APPEND flags
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 */
49 * Structure of an inode on the disk
51 struct 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 */
77 #endif /* !_FS_EXT2FS_EXT2_DINODE_H_ */