1/*-
2 * Copyright (c) 1982, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)inode.h 8.9 (Berkeley) 5/14/95
| 1/*-
2 * Copyright (c) 1982, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)inode.h 8.9 (Berkeley) 5/14/95
|
36 */
37
38#ifndef _FS_EXT2FS_INODE_H_
39#define _FS_EXT2FS_INODE_H_
40
41#include <sys/param.h>
42#include <sys/lock.h>
43#include <sys/mutex.h>
44#include <sys/queue.h>
45
46#include <fs/ext2fs/ext2_extents.h>
47
48/*
49 * This must agree with the definition in <ufs/ufs/dir.h>.
50 */
51#define doff_t int32_t
52
53#define NDADDR 12 /* Direct addresses in inode. */
54#define NIADDR 3 /* Indirect addresses in inode. */
55
56/*
57 * The size of physical and logical block numbers in EXT2FS.
58 */
59typedef uint32_t e2fs_daddr_t;
60typedef int64_t e2fs_lbn_t;
61typedef int64_t e4fs_daddr_t;
62
63/*
64 * The inode is used to describe each active (or recently active) file in the
65 * EXT2FS filesystem. It is composed of two types of information. The first
66 * part is the information that is needed only while the file is active (such
67 * as the identity of the file and linkage to speed its lookup). The second
68 * part is the permanent meta-data associated with the file which is read in
69 * from the permanent dinode from long term storage when the file becomes
70 * active, and is put back when the file is no longer being used.
71 */
72struct inode {
73 struct vnode *i_vnode;/* Vnode associated with this inode. */
74 struct ext2mount *i_ump;
75 uint32_t i_flag; /* flags, see below */
76 ino_t i_number; /* The identity of the inode. */
77
78 struct m_ext2fs *i_e2fs; /* EXT2FS */
79 u_quad_t i_modrev; /* Revision level for NFS lease. */
80 /*
81 * Side effects; used during directory lookup.
82 */
83 int32_t i_count; /* Size of free slot in directory. */
84 doff_t i_endoff; /* End of useful stuff in directory. */
85 doff_t i_diroff; /* Offset in dir, where we found last entry. */
86 doff_t i_offset; /* Offset of free space in directory. */
87
88 uint32_t i_block_group;
89 uint32_t i_next_alloc_block;
90 uint32_t i_next_alloc_goal;
91
92 /* Fields from struct dinode in UFS. */
93 uint16_t i_mode; /* IFMT, permissions; see below. */
94 int16_t i_nlink; /* File link count. */
95 uint32_t i_uid; /* File owner. */
96 uint32_t i_gid; /* File group. */
97 uint64_t i_size; /* File byte count. */
98 uint64_t i_blocks; /* Blocks actually held. */
99 int32_t i_atime; /* Last access time. */
100 int32_t i_mtime; /* Last modified time. */
101 int32_t i_ctime; /* Last inode change time. */
102 int32_t i_birthtime; /* Inode creation time. */
103 int32_t i_mtimensec; /* Last modified time. */
104 int32_t i_atimensec; /* Last access time. */
105 int32_t i_ctimensec; /* Last inode change time. */
106 int32_t i_birthnsec; /* Inode creation time. */
107 uint32_t i_gen; /* Generation number. */
108 uint32_t i_flags; /* Status flags (chflags). */
109 uint32_t i_db[NDADDR]; /* Direct disk blocks. */
110 uint32_t i_ib[NIADDR]; /* Indirect disk blocks. */
111
112 struct ext4_extent_cache i_ext_cache; /* cache for ext4 extent */
113};
114
115/*
116 * The di_db fields may be overlaid with other information for
117 * file types that do not have associated disk storage. Block
118 * and character devices overlay the first data block with their
119 * dev_t value. Short symbolic links place their path in the
120 * di_db area.
121 */
122#define i_shortlink i_db
123#define i_rdev i_db[0]
124
125/* File permissions. */
126#define IEXEC 0000100 /* Executable. */
127#define IWRITE 0000200 /* Writeable. */
128#define IREAD 0000400 /* Readable. */
129#define ISVTX 0001000 /* Sticky bit. */
130#define ISGID 0002000 /* Set-gid. */
131#define ISUID 0004000 /* Set-uid. */
132
133/* File types. */
134#define IFMT 0170000 /* Mask of file type. */
135#define IFIFO 0010000 /* Named pipe (fifo). */
136#define IFCHR 0020000 /* Character device. */
137#define IFDIR 0040000 /* Directory file. */
138#define IFBLK 0060000 /* Block device. */
139#define IFREG 0100000 /* Regular file. */
140#define IFLNK 0120000 /* Symbolic link. */
141#define IFSOCK 0140000 /* UNIX domain socket. */
142#define IFWHT 0160000 /* Whiteout. */
143
144/* These flags are kept in i_flag. */
145#define IN_ACCESS 0x0001 /* Access time update request. */
146#define IN_CHANGE 0x0002 /* Inode change time update request. */
147#define IN_UPDATE 0x0004 /* Modification time update request. */
148#define IN_MODIFIED 0x0008 /* Inode has been modified. */
149#define IN_RENAME 0x0010 /* Inode is being renamed. */
150#define IN_HASHED 0x0020 /* Inode is on hash list */
151#define IN_LAZYMOD 0x0040 /* Modified, but don't write yet. */
152#define IN_SPACECOUNTED 0x0080 /* Blocks to be freed in free count. */
153#define IN_LAZYACCESS 0x0100 /* Process IN_ACCESS after the
154 suspension finished */
155
156/*
157 * These are translation flags for some attributes that Ext4
158 * passes as inode flags but that we cannot pass directly.
159 */
| 36 */
37
38#ifndef _FS_EXT2FS_INODE_H_
39#define _FS_EXT2FS_INODE_H_
40
41#include <sys/param.h>
42#include <sys/lock.h>
43#include <sys/mutex.h>
44#include <sys/queue.h>
45
46#include <fs/ext2fs/ext2_extents.h>
47
48/*
49 * This must agree with the definition in <ufs/ufs/dir.h>.
50 */
51#define doff_t int32_t
52
53#define NDADDR 12 /* Direct addresses in inode. */
54#define NIADDR 3 /* Indirect addresses in inode. */
55
56/*
57 * The size of physical and logical block numbers in EXT2FS.
58 */
59typedef uint32_t e2fs_daddr_t;
60typedef int64_t e2fs_lbn_t;
61typedef int64_t e4fs_daddr_t;
62
63/*
64 * The inode is used to describe each active (or recently active) file in the
65 * EXT2FS filesystem. It is composed of two types of information. The first
66 * part is the information that is needed only while the file is active (such
67 * as the identity of the file and linkage to speed its lookup). The second
68 * part is the permanent meta-data associated with the file which is read in
69 * from the permanent dinode from long term storage when the file becomes
70 * active, and is put back when the file is no longer being used.
71 */
72struct inode {
73 struct vnode *i_vnode;/* Vnode associated with this inode. */
74 struct ext2mount *i_ump;
75 uint32_t i_flag; /* flags, see below */
76 ino_t i_number; /* The identity of the inode. */
77
78 struct m_ext2fs *i_e2fs; /* EXT2FS */
79 u_quad_t i_modrev; /* Revision level for NFS lease. */
80 /*
81 * Side effects; used during directory lookup.
82 */
83 int32_t i_count; /* Size of free slot in directory. */
84 doff_t i_endoff; /* End of useful stuff in directory. */
85 doff_t i_diroff; /* Offset in dir, where we found last entry. */
86 doff_t i_offset; /* Offset of free space in directory. */
87
88 uint32_t i_block_group;
89 uint32_t i_next_alloc_block;
90 uint32_t i_next_alloc_goal;
91
92 /* Fields from struct dinode in UFS. */
93 uint16_t i_mode; /* IFMT, permissions; see below. */
94 int16_t i_nlink; /* File link count. */
95 uint32_t i_uid; /* File owner. */
96 uint32_t i_gid; /* File group. */
97 uint64_t i_size; /* File byte count. */
98 uint64_t i_blocks; /* Blocks actually held. */
99 int32_t i_atime; /* Last access time. */
100 int32_t i_mtime; /* Last modified time. */
101 int32_t i_ctime; /* Last inode change time. */
102 int32_t i_birthtime; /* Inode creation time. */
103 int32_t i_mtimensec; /* Last modified time. */
104 int32_t i_atimensec; /* Last access time. */
105 int32_t i_ctimensec; /* Last inode change time. */
106 int32_t i_birthnsec; /* Inode creation time. */
107 uint32_t i_gen; /* Generation number. */
108 uint32_t i_flags; /* Status flags (chflags). */
109 uint32_t i_db[NDADDR]; /* Direct disk blocks. */
110 uint32_t i_ib[NIADDR]; /* Indirect disk blocks. */
111
112 struct ext4_extent_cache i_ext_cache; /* cache for ext4 extent */
113};
114
115/*
116 * The di_db fields may be overlaid with other information for
117 * file types that do not have associated disk storage. Block
118 * and character devices overlay the first data block with their
119 * dev_t value. Short symbolic links place their path in the
120 * di_db area.
121 */
122#define i_shortlink i_db
123#define i_rdev i_db[0]
124
125/* File permissions. */
126#define IEXEC 0000100 /* Executable. */
127#define IWRITE 0000200 /* Writeable. */
128#define IREAD 0000400 /* Readable. */
129#define ISVTX 0001000 /* Sticky bit. */
130#define ISGID 0002000 /* Set-gid. */
131#define ISUID 0004000 /* Set-uid. */
132
133/* File types. */
134#define IFMT 0170000 /* Mask of file type. */
135#define IFIFO 0010000 /* Named pipe (fifo). */
136#define IFCHR 0020000 /* Character device. */
137#define IFDIR 0040000 /* Directory file. */
138#define IFBLK 0060000 /* Block device. */
139#define IFREG 0100000 /* Regular file. */
140#define IFLNK 0120000 /* Symbolic link. */
141#define IFSOCK 0140000 /* UNIX domain socket. */
142#define IFWHT 0160000 /* Whiteout. */
143
144/* These flags are kept in i_flag. */
145#define IN_ACCESS 0x0001 /* Access time update request. */
146#define IN_CHANGE 0x0002 /* Inode change time update request. */
147#define IN_UPDATE 0x0004 /* Modification time update request. */
148#define IN_MODIFIED 0x0008 /* Inode has been modified. */
149#define IN_RENAME 0x0010 /* Inode is being renamed. */
150#define IN_HASHED 0x0020 /* Inode is on hash list */
151#define IN_LAZYMOD 0x0040 /* Modified, but don't write yet. */
152#define IN_SPACECOUNTED 0x0080 /* Blocks to be freed in free count. */
153#define IN_LAZYACCESS 0x0100 /* Process IN_ACCESS after the
154 suspension finished */
155
156/*
157 * These are translation flags for some attributes that Ext4
158 * passes as inode flags but that we cannot pass directly.
159 */
|