ulfs_dinode.h revision 1.7
1/* $NetBSD: ulfs_dinode.h,v 1.7 2013/06/08 02:11:49 dholland Exp $ */ 2/* from NetBSD: dinode.h,v 1.22 2013/01/22 09:39:18 dholland Exp */ 3 4/* 5 * Copyright (c) 2002 Networks Associates Technology, Inc. 6 * All rights reserved. 7 * 8 * This software was developed for the FreeBSD Project by Marshall 9 * Kirk McKusick and Network Associates Laboratories, the Security 10 * Research Division of Network Associates, Inc. under DARPA/SPAWAR 11 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS 12 * research program 13 * 14 * Copyright (c) 1982, 1989, 1993 15 * The Regents of the University of California. All rights reserved. 16 * (c) UNIX System Laboratories, Inc. 17 * All or some portions of this file are derived from material licensed 18 * to the University of California by American Telephone and Telegraph 19 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 20 * the permission of UNIX System Laboratories, Inc. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the above copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. Neither the name of the University nor the names of its contributors 31 * may be used to endorse or promote products derived from this software 32 * without specific prior written permission. 33 * 34 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 35 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 36 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 37 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 39 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 40 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 42 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 43 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 44 * SUCH DAMAGE. 45 * 46 * @(#)dinode.h 8.9 (Berkeley) 3/29/95 47 */ 48 49/* 50 * NOTE: COORDINATE ON-DISK FORMAT CHANGES WITH THE FREEBSD PROJECT. 51 */ 52 53#ifndef _UFS_LFS_ULFS_DINODE_H_ 54#define _UFS_LFS_ULFS_DINODE_H_ 55 56#include <ufs/lfs/lfs.h> 57 58/* 59 * The root inode is the root of the file system. Inode 0 can't be used for 60 * normal purposes and historically bad blocks were linked to inode 1, thus 61 * the root inode is 2. (Inode 1 is no longer used for this purpose, however 62 * numerous dump tapes make this assumption, so we are stuck with it). 63 */ 64#define ULFS_ROOTINO ((ino_t)2) 65 66/* 67 * The Whiteout inode# is a dummy non-zero inode number which will 68 * never be allocated to a real file. It is used as a place holder 69 * in the directory entry which has been tagged as a DT_W entry. 70 * See the comments about ULFS_ROOTINO above. 71 */ 72#define ULFS_WINO ((ino_t)1) 73 74/* 75 * Maximum length of a symlink that can be stored within the inode. 76 */ 77#define ULFS1_MAXSYMLINKLEN ((ULFS_NDADDR + ULFS_NIADDR) * sizeof(int32_t)) 78#define ULFS2_MAXSYMLINKLEN ((ULFS_NDADDR + ULFS_NIADDR) * sizeof(int64_t)) 79 80#define ULFS_MAXSYMLINKLEN(ip) \ 81 ((ip)->i_ump->um_fstype == ULFS1) ? \ 82 ULFS1_MAXSYMLINKLEN : ULFS2_MAXSYMLINKLEN 83 84/* File permissions. */ 85#define IEXEC 0000100 /* Executable. */ 86#define IWRITE 0000200 /* Writable. */ 87#define IREAD 0000400 /* Readable. */ 88#define ISVTX 0001000 /* Sticky bit. */ 89#define ISGID 0002000 /* Set-gid. */ 90#define ISUID 0004000 /* Set-uid. */ 91 92#endif /* !_UFS_LFS_ULFS_DINODE_H_ */ 93