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1.1 root 1: /*
2: * Copyright (c) 1982, 1989 The Regents of the University of California.
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: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
1.1.1.2 ! root 33: * from: @(#)dinode.h 7.10 (Berkeley) 5/8/91
! 34: * dinode.h,v 1.7 1993/06/16 05:42:25 mycroft Exp
1.1 root 35: */
36:
1.1.1.2 ! root 37: #ifndef _UFS_DINODE_H_
! 38: #define _UFS_DINODE_H_
! 39:
1.1 root 40: /*
41: * A dinode contains all the meta-data associated with a UFS file.
42: * This structure defines the on-disk format of a dinode.
43: */
44:
45: #define NDADDR 12 /* direct addresses in inode */
46: #define NIADDR 3 /* indirect addresses in inode */
47:
1.1.1.2 ! root 48: #define MAXFASTLINK (((NDADDR+NIADDR) * sizeof(daddr_t)) - 1)
! 49:
1.1 root 50: struct dinode {
51: u_short di_mode; /* 0: mode and type of file */
52: short di_nlink; /* 2: number of links to file */
53: uid_t di_uid; /* 4: owner's user id */
54: gid_t di_gid; /* 6: owner's group id */
55: u_quad di_qsize; /* 8: number of bytes in file */
56: time_t di_atime; /* 16: time last accessed */
57: long di_atspare;
58: time_t di_mtime; /* 24: time last modified */
59: long di_mtspare;
60: time_t di_ctime; /* 32: last time inode changed */
61: long di_ctspare;
1.1.1.2 ! root 62: union {
! 63: struct {
! 64: daddr_t di_udb[NDADDR]; /* 40: disk block addresses */
! 65: daddr_t di_uib[NIADDR]; /* 88: indirect blocks */
! 66: } di_addr;
! 67: dev_t di_urdev; /* 40: device number */
! 68: char di_usymlink[MAXFASTLINK+1];/* 40: data for fast symlink */
! 69: } di_un;
1.1 root 70: long di_flags; /* 100: status, currently unused */
71: long di_blocks; /* 104: blocks actually held */
72: long di_gen; /* 108: generation number */
1.1.1.2 ! root 73: u_long di_fsize; /* 112: fast access (data in inode) size */
! 74: #define DI_SPARE_SZ 3 /* 116: spare for 4 longs */
! 75: u_long di_spare[DI_SPARE_SZ]; /* reserved (unused) */
1.1 root 76: };
77:
1.1.1.2 ! root 78: #define di_db di_un.di_addr.di_udb
! 79: #define di_ib di_un.di_addr.di_uib
! 80: #define di_symlink di_un.di_usymlink
! 81:
1.1 root 82: #if BYTE_ORDER == LITTLE_ENDIAN || defined(tahoe) /* ugh! -- must be fixed */
83: #define di_size di_qsize.val[0]
84: #else /* BYTE_ORDER == BIG_ENDIAN */
85: #define di_size di_qsize.val[1]
86: #endif
1.1.1.2 ! root 87: #define di_rdev di_un.di_urdev
1.1 root 88:
89: /* file modes */
90: #define IFMT 0170000 /* mask of file type */
91: #define IFIFO 0010000 /* named pipe (fifo) */
92: #define IFCHR 0020000 /* character special device */
93: #define IFDIR 0040000 /* directory */
94: #define IFBLK 0060000 /* block special device */
95: #define IFREG 0100000 /* regular file */
96: #define IFLNK 0120000 /* symbolic link */
97: #define IFSOCK 0140000 /* UNIX domain socket */
98:
99: #define ISUID 04000 /* set user identifier when exec'ing */
100: #define ISGID 02000 /* set group identifier when exec'ing */
101: #define ISVTX 01000 /* save execution information on exit */
102: #define IREAD 0400 /* read permission */
103: #define IWRITE 0200 /* write permission */
104: #define IEXEC 0100 /* execute permission */
1.1.1.2 ! root 105:
! 106: #define DFASTLINK(di) \
! 107: ((((di).di_mode & IFMT) == IFLNK) && \
! 108: ((di).di_size <= MAXFASTLINK) && \
! 109: ((di).di_size == (di).di_fsize))
! 110:
! 111: #endif /* !_UFS_DINODE_H_ */
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