1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/* $NetBSD: chfs_inode.h,v 1.10 2015/01/11 17:29:57 hannken Exp $ */
/*-
* Copyright (c) 2010 Department of Software Engineering,
* University of Szeged, Hungary
* Copyright (C) 2010 Tamas Toth <ttoth@inf.u-szeged.hu>
* Copyright (C) 2010 Adam Hoka <ahoka@NetBSD.org>
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by the Department of Software Engineering, University of Szeged, Hungary
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __CHFS_INODE_H__
#define __CHFS_INODE_H__
#ifdef _KERNEL
#include <sys/vnode.h>
#include <sys/stat.h>
#include <ufs/ufs/ufsmount.h>
#include <miscfs/genfs/genfs_node.h>
#endif /* _KERNEL */
#define CHFS_ROOTINO 2
/* chfs file types */
enum chtype {
CHT_BLANK, /* empty type */
CHT_REG, /* regular file */
CHT_DIR, /* directory */
CHT_BLK, /* block device */
CHT_CHR, /* character device */
CHT_LNK, /* link */
CHT_SOCK, /* socket */
CHT_FIFO, /* fifo */
CHT_BAD /* bad type */
};
/* these macros are needed because the compatibility */
#define CHTTOVT(ch_type) (enum vtype)(ch_type)
#define VTTOCHT(v_type) (enum chtype)(v_type)
/* vtype replaced with chtype, these are only for backward compatibility */
static const enum chtype iftocht_tab[16] = {
CHT_BLANK, CHT_FIFO, CHT_CHR, CHT_BLANK,
CHT_DIR, CHT_BLANK, CHT_BLK, CHT_BLANK,
CHT_REG, CHT_BLANK, CHT_LNK, CHT_BLANK,
CHT_SOCK, CHT_BLANK, CHT_BLANK, CHT_BAD,
};
#define IFTOCHT(mode) (iftocht_tab[((mode) & S_IFMT) >> 12])
#ifdef _KERNEL
struct chfs_inode
{
struct genfs_node gnode;
kmutex_t inode_lock; /* lock the fields of chfs_inode */
struct ufsmount *ump; /* ufs mount - TODO we should remove it */
struct chfs_mount *chmp; /* chfs mount point - TODO we should remove it */
struct vnode *vp; /* vnode associated with this inode */
ino_t ino; /* vnode identifier number */
struct vnode *devvp; /* vnode for block I/O */
dev_t dev; /* device associated with the inode */
struct chfs_vnode_cache *chvc; /* vnode cache of this node */
struct chfs_dirent *fd; /* full dirent of this node */
struct chfs_dirent_list dents;
struct rb_tree fragtree; /* fragtree of inode */
uint64_t version; /* version number */
uint32_t mode; /* mode */
enum chtype ch_type; /* chfs file type */
uint64_t size; /* file byte count */
uint64_t write_size; /* increasing while write the file out to the flash */
uint32_t uid; /* file owner */
uint32_t gid; /* file group */
uint32_t atime; /* access time */
uint32_t mtime; /* modify time */
uint32_t ctime; /* creation time */
uint32_t iflag; /* flags, see below */
uint32_t flags; /* status flags (chflags) */
dev_t rdev; /* used if type is VCHR or VBLK or VFIFO*/
char *target; /* used if type is VLNK */
};
/* These flags are kept in chfs_inode->iflag. */
#define IN_ACCESS 0x0001 /* Access time update request. */
#define IN_CHANGE 0x0002 /* Inode change time update request. */
#define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */
#define IN_MODIFY 0x2000 /* Modification time update request. */
#define IN_MODIFIED 0x0008 /* Inode has been modified. */
#define IN_ACCESSED 0x0010 /* Inode has been accessed. */
/* unused 0x0020 */ /* was IN_RENAME */
#define IN_SHLOCK 0x0040 /* File has shared lock. */
#define IN_EXLOCK 0x0080 /* File has exclusive lock. */
/* unused 0x0100 */ /* was LFS-only IN_CLEANING */
/* unused 0x0200 */ /* was LFS-only IN_ADIROP */
#define IN_SPACECOUNTED 0x0400 /* Blocks to be freed in free count. */
/* unused 0x1000 */ /* was LFS-only IN_PAGING */
#ifdef VTOI
# undef VTOI
#endif
#ifdef ITOV
# undef ITOV
#endif
/* struct vnode to struct chfs_inode */
#define VTOI(vp) ((struct chfs_inode *)(vp)->v_data)
/* struct chfs_inode to struct vnode */
#define ITOV(ip) ((ip)->vp)
/* XXX copied from ufs_dinode.h and should not be duplicated here */
#define UFS_NDADDR 12 /* Direct addresses in inode. */
/* XXX this should not be duplicated here */
#define UFS_ROOTINO ((ino_t)2)
/* File permissions. */
#define IEXEC 0000100 /* Executable. */
#define IWRITE 0000200 /* Writable. */
#define IREAD 0000400 /* Readable. */
#define ISVTX 0001000 /* Sticky bit. */
#define ISGID 0002000 /* Set-gid. */
#define ISUID 0004000 /* Set-uid. */
/* File types. */
#define IFMT 0170000 /* Mask of file type. */
#define IFIFO 0010000 /* Named pipe (fifo). */
#define IFCHR 0020000 /* Character device. */
#define IFDIR 0040000 /* Directory file. */
#define IFBLK 0060000 /* Block device. */
#define IFREG 0100000 /* Regular file. */
#define IFLNK 0120000 /* Symbolic link. */
#define IFSOCK 0140000 /* UNIX domain socket. */
#define IFWHT 0160000 /* Whiteout. */
#endif /* _KERNEL */
#endif /* __CHFS_INODE_H__ */
|
