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
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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 251809 2013-06-16 16:10:45Z pfg $
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
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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 * Constants relative to the data blocks
85 */
86#define EXT2_NDIR_BLOCKS 12
87#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS
88#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1)
89#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1)
90#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1)
91#define EXT2_MAXSYMLINKLEN (EXT2_N_BLOCKS * sizeof(uint32_t))
92
93/*
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 */
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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
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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 251809 2013-06-16 16:10:45Z pfg $
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
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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 * Constants relative to the data blocks
85 */
86#define EXT2_NDIR_BLOCKS 12
87#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS
88#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1)
89#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1)
90#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1)
91#define EXT2_MAXSYMLINKLEN (EXT2_N_BLOCKS * sizeof(uint32_t))
92
93/*
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 */
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