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 *
| 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 *
|
27 */
28
29#ifndef _FS_EXT2FS_EXT2_DINODE_H_
30#define _FS_EXT2FS_EXT2_DINODE_H_
31
32/*
33 * Special inode numbers
34 * The root inode is the root of the file system. Inode 0 can't be used for
35 * normal purposes and bad blocks are normally linked to inode 1, thus
36 * the root inode is 2.
37 * Inode 3 to 10 are reserved in ext2fs.
38 */
39#define EXT2_BADBLKINO ((ino_t)1)
40#define EXT2_ROOTINO ((ino_t)2)
41#define EXT2_ACLIDXINO ((ino_t)3)
42#define EXT2_ACLDATAINO ((ino_t)4)
43#define EXT2_BOOTLOADERINO ((ino_t)5)
44#define EXT2_UNDELDIRINO ((ino_t)6)
45#define EXT2_RESIZEINO ((ino_t)7)
46#define EXT2_JOURNALINO ((ino_t)8)
47#define EXT2_FIRSTINO ((ino_t)11)
48
49/*
50 * Inode flags
51 * The current implementation uses only EXT2_IMMUTABLE and EXT2_APPEND flags
52 */
53#define EXT2_SECRM 0x00000001 /* Secure deletion */
54#define EXT2_UNRM 0x00000002 /* Undelete */
55#define EXT2_COMPR 0x00000004 /* Compress file */
56#define EXT2_SYNC 0x00000008 /* Synchronous updates */
57#define EXT2_IMMUTABLE 0x00000010 /* Immutable file */
58#define EXT2_APPEND 0x00000020 /* writes to file may only append */
59#define EXT2_NODUMP 0x00000040 /* do not dump file */
60#define EXT2_NOATIME 0x00000080 /* do not update atime */
61
62#define EXT4_INDEX 0x00001000 /* hash-indexed directory */
63#define EXT4_IMAGIC 0x00002000 /* AFS directory */
64#define EXT4_JOURNAL_DATA 0x00004000 /* file data should be journaled */
65#define EXT4_NOTAIL 0x00008000 /* file tail should not be merged */
66#define EXT4_DIRSYNC 0x00010000 /* dirsync behaviour */
67#define EXT4_TOPDIR 0x00020000 /* Top of directory hierarchies*/
68#define EXT4_HUGE_FILE 0x00040000 /* Set to each huge file */
69#define EXT4_EXTENTS 0x00080000 /* Inode uses extents */
70#define EXT4_EOFBLOCKS 0x00400000 /* Blocks allocated beyond EOF */
71
72/*
73 * Definitions for nanosecond timestamps.
74 * Ext3 inode versioning, 2006-12-13.
75 */
76#define EXT3_EPOCH_BITS 2
77#define EXT3_EPOCH_MASK ((1 << EXT3_EPOCH_BITS) - 1)
78#define EXT3_NSEC_MASK (~0UL << EXT3_EPOCH_BITS)
79
80#define E2DI_HAS_XTIME(ip) (EXT2_HAS_RO_COMPAT_FEATURE(ip->i_e2fs, \
81 EXT2F_ROCOMPAT_EXTRA_ISIZE))
82
83/*
| 27 */
28
29#ifndef _FS_EXT2FS_EXT2_DINODE_H_
30#define _FS_EXT2FS_EXT2_DINODE_H_
31
32/*
33 * Special inode numbers
34 * The root inode is the root of the file system. Inode 0 can't be used for
35 * normal purposes and bad blocks are normally linked to inode 1, thus
36 * the root inode is 2.
37 * Inode 3 to 10 are reserved in ext2fs.
38 */
39#define EXT2_BADBLKINO ((ino_t)1)
40#define EXT2_ROOTINO ((ino_t)2)
41#define EXT2_ACLIDXINO ((ino_t)3)
42#define EXT2_ACLDATAINO ((ino_t)4)
43#define EXT2_BOOTLOADERINO ((ino_t)5)
44#define EXT2_UNDELDIRINO ((ino_t)6)
45#define EXT2_RESIZEINO ((ino_t)7)
46#define EXT2_JOURNALINO ((ino_t)8)
47#define EXT2_FIRSTINO ((ino_t)11)
48
49/*
50 * Inode flags
51 * The current implementation uses only EXT2_IMMUTABLE and EXT2_APPEND flags
52 */
53#define EXT2_SECRM 0x00000001 /* Secure deletion */
54#define EXT2_UNRM 0x00000002 /* Undelete */
55#define EXT2_COMPR 0x00000004 /* Compress file */
56#define EXT2_SYNC 0x00000008 /* Synchronous updates */
57#define EXT2_IMMUTABLE 0x00000010 /* Immutable file */
58#define EXT2_APPEND 0x00000020 /* writes to file may only append */
59#define EXT2_NODUMP 0x00000040 /* do not dump file */
60#define EXT2_NOATIME 0x00000080 /* do not update atime */
61
62#define EXT4_INDEX 0x00001000 /* hash-indexed directory */
63#define EXT4_IMAGIC 0x00002000 /* AFS directory */
64#define EXT4_JOURNAL_DATA 0x00004000 /* file data should be journaled */
65#define EXT4_NOTAIL 0x00008000 /* file tail should not be merged */
66#define EXT4_DIRSYNC 0x00010000 /* dirsync behaviour */
67#define EXT4_TOPDIR 0x00020000 /* Top of directory hierarchies*/
68#define EXT4_HUGE_FILE 0x00040000 /* Set to each huge file */
69#define EXT4_EXTENTS 0x00080000 /* Inode uses extents */
70#define EXT4_EOFBLOCKS 0x00400000 /* Blocks allocated beyond EOF */
71
72/*
73 * Definitions for nanosecond timestamps.
74 * Ext3 inode versioning, 2006-12-13.
75 */
76#define EXT3_EPOCH_BITS 2
77#define EXT3_EPOCH_MASK ((1 << EXT3_EPOCH_BITS) - 1)
78#define EXT3_NSEC_MASK (~0UL << EXT3_EPOCH_BITS)
79
80#define E2DI_HAS_XTIME(ip) (EXT2_HAS_RO_COMPAT_FEATURE(ip->i_e2fs, \
81 EXT2F_ROCOMPAT_EXTRA_ISIZE))
82
83/*
|
84 * Structure of an inode on the disk
85 */
86struct ext2fs_dinode {
87 uint16_t e2di_mode; /* 0: IFMT, permissions; see below. */
88 uint16_t e2di_uid; /* 2: Owner UID */
89 uint32_t e2di_size; /* 4: Size (in bytes) */
90 uint32_t e2di_atime; /* 8: Access time */
91 uint32_t e2di_ctime; /* 12: Change time */
92 uint32_t e2di_mtime; /* 16: Modification time */
93 uint32_t e2di_dtime; /* 20: Deletion time */
94 uint16_t e2di_gid; /* 24: Owner GID */
95 uint16_t e2di_nlink; /* 26: File link count */
96 uint32_t e2di_nblock; /* 28: Blocks count */
97 uint32_t e2di_flags; /* 32: Status flags (chflags) */
98 uint32_t e2di_version; /* 36: Low 32 bits inode version */
99 uint32_t e2di_blocks[EXT2_N_BLOCKS]; /* 40: disk blocks */
100 uint32_t e2di_gen; /* 100: generation number */
101 uint32_t e2di_facl; /* 104: Low EA block */
102 uint32_t e2di_size_high; /* 108: Upper bits of file size */
103 uint32_t e2di_faddr; /* 112: Fragment address (obsolete) */
104 uint16_t e2di_nblock_high; /* 116: Blocks count bits 47:32 */
105 uint16_t e2di_facl_high; /* 118: File EA bits 47:32 */
106 uint16_t e2di_uid_high; /* 120: Owner UID top 16 bits */
107 uint16_t e2di_gid_high; /* 122: Owner GID top 16 bits */
108 uint16_t e2di_chksum_lo; /* 124: Lower inode checksum */
109 uint16_t e2di_lx_reserved; /* 126: Unused */
110 uint16_t e2di_extra_isize; /* 128: Size of this inode */
111 uint16_t e2di_chksum_hi; /* 130: High inode checksum */
112 uint32_t e2di_ctime_extra; /* 132: Extra change time */
113 uint32_t e2di_mtime_extra; /* 136: Extra modification time */
114 uint32_t e2di_atime_extra; /* 140: Extra access time */
115 uint32_t e2di_crtime; /* 144: Creation (birth)time */
116 uint32_t e2di_crtime_extra; /* 148: Extra creation (birth)time */
117 uint32_t e2di_version_hi; /* 152: High bits of inode version */
118};
119
120#endif /* !_FS_EXT2FS_EXT2_DINODE_H_ */
121
| 94 * Structure of an inode on the disk
95 */
96struct ext2fs_dinode {
97 uint16_t e2di_mode; /* 0: IFMT, permissions; see below. */
98 uint16_t e2di_uid; /* 2: Owner UID */
99 uint32_t e2di_size; /* 4: Size (in bytes) */
100 uint32_t e2di_atime; /* 8: Access time */
101 uint32_t e2di_ctime; /* 12: Change time */
102 uint32_t e2di_mtime; /* 16: Modification time */
103 uint32_t e2di_dtime; /* 20: Deletion time */
104 uint16_t e2di_gid; /* 24: Owner GID */
105 uint16_t e2di_nlink; /* 26: File link count */
106 uint32_t e2di_nblock; /* 28: Blocks count */
107 uint32_t e2di_flags; /* 32: Status flags (chflags) */
108 uint32_t e2di_version; /* 36: Low 32 bits inode version */
109 uint32_t e2di_blocks[EXT2_N_BLOCKS]; /* 40: disk blocks */
110 uint32_t e2di_gen; /* 100: generation number */
111 uint32_t e2di_facl; /* 104: Low EA block */
112 uint32_t e2di_size_high; /* 108: Upper bits of file size */
113 uint32_t e2di_faddr; /* 112: Fragment address (obsolete) */
114 uint16_t e2di_nblock_high; /* 116: Blocks count bits 47:32 */
115 uint16_t e2di_facl_high; /* 118: File EA bits 47:32 */
116 uint16_t e2di_uid_high; /* 120: Owner UID top 16 bits */
117 uint16_t e2di_gid_high; /* 122: Owner GID top 16 bits */
118 uint16_t e2di_chksum_lo; /* 124: Lower inode checksum */
119 uint16_t e2di_lx_reserved; /* 126: Unused */
120 uint16_t e2di_extra_isize; /* 128: Size of this inode */
121 uint16_t e2di_chksum_hi; /* 130: High inode checksum */
122 uint32_t e2di_ctime_extra; /* 132: Extra change time */
123 uint32_t e2di_mtime_extra; /* 136: Extra modification time */
124 uint32_t e2di_atime_extra; /* 140: Extra access time */
125 uint32_t e2di_crtime; /* 144: Creation (birth)time */
126 uint32_t e2di_crtime_extra; /* 148: Extra creation (birth)time */
127 uint32_t e2di_version_hi; /* 152: High bits of inode version */
128};
129
130#endif /* !_FS_EXT2FS_EXT2_DINODE_H_ */
131
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