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ext2fs_dinode.h revision 1.8.2.2
      1  1.8.2.1     skrll /*	$NetBSD: ext2fs_dinode.h,v 1.8.2.2 2004/09/18 14:56:52 skrll Exp $	*/
      2      1.1    bouyer 
      3      1.1    bouyer /*
      4      1.1    bouyer  * Copyright (c) 1982, 1989, 1993
      5      1.1    bouyer  *	The Regents of the University of California.  All rights reserved.
      6      1.1    bouyer  * (c) UNIX System Laboratories, Inc.
      7      1.1    bouyer  * All or some portions of this file are derived from material licensed
      8      1.1    bouyer  * to the University of California by American Telephone and Telegraph
      9      1.1    bouyer  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
     10      1.1    bouyer  * the permission of UNIX System Laboratories, Inc.
     11      1.1    bouyer  *
     12      1.1    bouyer  * Redistribution and use in source and binary forms, with or without
     13      1.1    bouyer  * modification, are permitted provided that the following conditions
     14      1.1    bouyer  * are met:
     15      1.1    bouyer  * 1. Redistributions of source code must retain the above copyright
     16      1.4  christos  *    notice, this list of conditions and the following disclaimer.
     17      1.1    bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     18      1.4  christos  *    notice, this list of conditions and the following disclaimer in the
     19      1.4  christos  *    documentation and/or other materials provided with the distribution.
     20  1.8.2.1     skrll  * 3. Neither the name of the University nor the names of its contributors
     21      1.4  christos  *    may be used to endorse or promote products derived from this software
     22      1.4  christos  *    without specific prior written permission.
     23      1.1    bouyer  *
     24      1.1    bouyer  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25      1.1    bouyer  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26      1.1    bouyer  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27      1.1    bouyer  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28      1.1    bouyer  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29      1.1    bouyer  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30      1.1    bouyer  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31      1.1    bouyer  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32      1.1    bouyer  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33      1.1    bouyer  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34      1.1    bouyer  * SUCH DAMAGE.
     35      1.1    bouyer  *
     36      1.1    bouyer  *	@(#)dinode.h	8.6 (Berkeley) 9/13/94
     37      1.1    bouyer  *  Modified for ext2fs by Manuel Bouyer.
     38      1.1    bouyer  */
     39      1.1    bouyer 
     40  1.8.2.1     skrll /*
     41  1.8.2.1     skrll  * Copyright (c) 1997 Manuel Bouyer.
     42  1.8.2.1     skrll  *
     43  1.8.2.1     skrll  * Redistribution and use in source and binary forms, with or without
     44  1.8.2.1     skrll  * modification, are permitted provided that the following conditions
     45  1.8.2.1     skrll  * are met:
     46  1.8.2.1     skrll  * 1. Redistributions of source code must retain the above copyright
     47  1.8.2.1     skrll  *    notice, this list of conditions and the following disclaimer.
     48  1.8.2.1     skrll  * 2. Redistributions in binary form must reproduce the above copyright
     49  1.8.2.1     skrll  *    notice, this list of conditions and the following disclaimer in the
     50  1.8.2.1     skrll  *    documentation and/or other materials provided with the distribution.
     51  1.8.2.1     skrll  * 3. All advertising materials mentioning features or use of this software
     52  1.8.2.1     skrll  *    must display the following acknowledgement:
     53  1.8.2.1     skrll  *	This product includes software developed by Manuel Bouyer.
     54  1.8.2.1     skrll  * 4. The name of the author may not be used to endorse or promote products
     55  1.8.2.1     skrll  *    derived from this software without specific prior written permission.
     56  1.8.2.1     skrll  *
     57  1.8.2.1     skrll  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     58  1.8.2.1     skrll  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     59  1.8.2.1     skrll  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     60  1.8.2.1     skrll  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     61  1.8.2.1     skrll  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     62  1.8.2.1     skrll  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     63  1.8.2.1     skrll  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     64  1.8.2.1     skrll  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     65  1.8.2.1     skrll  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     66  1.8.2.1     skrll  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67  1.8.2.1     skrll  *
     68  1.8.2.1     skrll  *	@(#)dinode.h	8.6 (Berkeley) 9/13/94
     69  1.8.2.1     skrll  *  Modified for ext2fs by Manuel Bouyer.
     70  1.8.2.1     skrll  */
     71  1.8.2.1     skrll 
     72      1.7      matt #ifndef _UFS_EXT2FS_EXT2FS_DINODE_H_
     73      1.7      matt #define _UFS_EXT2FS_EXT2FS_DINODE_H_
     74      1.7      matt 
     75      1.1    bouyer #include <sys/stat.h>
     76      1.1    bouyer 
     77      1.1    bouyer /*
     78      1.1    bouyer  * The root inode is the root of the file system.  Inode 0 can't be used for
     79      1.1    bouyer  * normal purposes and bad blocks are normally linked to inode 1, thus
     80      1.1    bouyer  * the root inode is 2.
     81      1.1    bouyer  * Inode 3 to 10 are reserved in ext2fs.
     82      1.1    bouyer  */
     83      1.1    bouyer #define	EXT2_ROOTINO ((ino_t)2)
     84      1.1    bouyer #define EXT2_FIRSTINO ((ino_t)11)
     85      1.1    bouyer 
     86      1.1    bouyer /*
     87      1.1    bouyer  * A dinode contains all the meta-data associated with a UFS file.
     88      1.1    bouyer  * This structure defines the on-disk format of a dinode. Since
     89      1.1    bouyer  * this structure describes an on-disk structure, all its fields
     90      1.1    bouyer  * are defined by types with precise widths.
     91      1.1    bouyer  */
     92      1.1    bouyer 
     93      1.1    bouyer #define	NDADDR	12			/* Direct addresses in inode. */
     94      1.1    bouyer #define	NIADDR	3			/* Indirect addresses in inode. */
     95      1.1    bouyer 
     96      1.1    bouyer #define EXT2_MAXSYMLINKLEN ((NDADDR+NIADDR) * sizeof (u_int32_t))
     97      1.1    bouyer 
     98      1.1    bouyer struct ext2fs_dinode {
     99      1.1    bouyer 	u_int16_t	e2di_mode;	/*   0: IFMT, permissions; see below. */
    100      1.1    bouyer 	u_int16_t	e2di_uid;	/*   2: Owner UID */
    101      1.1    bouyer 	u_int32_t	e2di_size;	/*	 4: Size (in bytes) */
    102      1.1    bouyer 	u_int32_t	e2di_atime;	/*	 8: Acces time */
    103      1.1    bouyer 	u_int32_t	e2di_ctime;	/*	12: Create time */
    104      1.1    bouyer 	u_int32_t	e2di_mtime;	/*	16: Modification time */
    105      1.1    bouyer 	u_int32_t	e2di_dtime;	/*	20: Deletion time */
    106      1.1    bouyer 	u_int16_t	e2di_gid;	/*  24: Owner GID */
    107      1.1    bouyer 	u_int16_t	e2di_nlink;	/*  26: File link count */
    108      1.6    bouyer 	u_int32_t	e2di_nblock;	/*  28: Blocks count */
    109      1.1    bouyer 	u_int32_t	e2di_flags;	/*  32: Status flags (chflags) */
    110      1.1    bouyer 	u_int32_t	e2di_linux_reserved1; /* 36 */
    111      1.1    bouyer 	u_int32_t	e2di_blocks[NDADDR+NIADDR]; /* 40: disk blocks */
    112      1.6    bouyer 	u_int32_t	e2di_gen;	/* 100: generation number */
    113      1.6    bouyer 	u_int32_t	e2di_facl;	/* 104: file ACL (not implemented) */
    114      1.6    bouyer 	u_int32_t	e2di_dacl;	/* 108: dir ACL (not implemented) */
    115      1.6    bouyer 	u_int32_t	e2di_faddr;	/* 112: fragment address */
    116      1.6    bouyer 	u_int8_t	e2di_nfrag;	/* 116: fragment number */
    117      1.6    bouyer 	u_int8_t	e2di_fsize;	/* 117: fragment size */
    118      1.1    bouyer 	u_int16_t	e2di_linux_reserved2; /* 118 */
    119      1.1    bouyer 	u_int32_t	e2di_linux_reserved3[2]; /* 120 */
    120      1.1    bouyer };
    121      1.1    bouyer 
    122      1.1    bouyer 
    123      1.1    bouyer 
    124      1.1    bouyer #define	E2MAXSYMLINKLEN	((NDADDR + NIADDR) * sizeof(u_int32_t))
    125      1.1    bouyer 
    126      1.1    bouyer /* File permissions. */
    127      1.1    bouyer #define	EXT2_IEXEC		0000100		/* Executable. */
    128      1.8       wiz #define	EXT2_IWRITE		0000200		/* Writable. */
    129      1.1    bouyer #define	EXT2_IREAD		0000400		/* Readable. */
    130      1.1    bouyer #define	EXT2_ISVTX		0001000		/* Sticky bit. */
    131      1.1    bouyer #define	EXT2_ISGID		0002000		/* Set-gid. */
    132      1.1    bouyer #define	EXT2_ISUID		0004000		/* Set-uid. */
    133      1.1    bouyer 
    134      1.1    bouyer /* File types. */
    135      1.1    bouyer #define	EXT2_IFMT		0170000		/* Mask of file type. */
    136      1.1    bouyer #define	EXT2_IFIFO		0010000		/* Named pipe (fifo). */
    137      1.1    bouyer #define	EXT2_IFCHR		0020000		/* Character device. */
    138      1.1    bouyer #define	EXT2_IFDIR		0040000		/* Directory file. */
    139      1.1    bouyer #define	EXT2_IFBLK		0060000		/* Block device. */
    140      1.1    bouyer #define	EXT2_IFREG		0100000		/* Regular file. */
    141      1.1    bouyer #define	EXT2_IFLNK		0120000		/* Symbolic link. */
    142      1.1    bouyer #define	EXT2_IFSOCK		0140000		/* UNIX domain socket. */
    143      1.1    bouyer 
    144      1.1    bouyer /* file flags */
    145      1.1    bouyer #define EXT2_SECRM		0x00000001	/* Secure deletion */
    146      1.1    bouyer #define EXT2_UNRM		0x00000002	/* Undelete */
    147      1.1    bouyer #define EXT2_COMPR		0x00000004	/* Compress file */
    148      1.1    bouyer #define EXT2_SYNC		0x00000008	/* Synchronous updates */
    149      1.1    bouyer #define EXT2_IMMUTABLE	0x00000010	/* Immutable file */
    150      1.1    bouyer #define EXT2_APPEND		0x00000020	/* writes to file may only append */
    151      1.1    bouyer #define EXT2_NODUMP		0x00000040	/* do not dump file */
    152      1.5   thorpej 
    153      1.5   thorpej /* Size of on-disk inode. */
    154      1.5   thorpej #define	EXT2_DINODE_SIZE	(sizeof(struct ext2fs_dinode))	/* 128 */
    155      1.1    bouyer 
    156      1.1    bouyer /*
    157      1.1    bouyer  * The e2di_blocks fields may be overlaid with other information for
    158      1.1    bouyer  * file types that do not have associated disk storage. Block
    159      1.1    bouyer  * and character devices overlay the first data block with their
    160      1.1    bouyer  * dev_t value. Short symbolic links place their path in the
    161      1.1    bouyer  * di_db area.
    162      1.1    bouyer  */
    163      1.1    bouyer 
    164      1.1    bouyer #define e2di_rdev		e2di_blocks[0]
    165      1.1    bouyer #define e2di_shortlink	e2di_blocks
    166      1.2    bouyer 
    167      1.2    bouyer /* e2fs needs byte swapping on big-endian systems */
    168      1.2    bouyer #if BYTE_ORDER == LITTLE_ENDIAN
    169      1.3     perry #	define e2fs_iload(old, new) memcpy((new),(old),sizeof(struct ext2fs_dinode))
    170      1.3     perry #	define e2fs_isave(old, new) memcpy((new),(old),sizeof(struct ext2fs_dinode))
    171      1.2    bouyer #else
    172      1.2    bouyer void e2fs_i_bswap __P((struct ext2fs_dinode *, struct ext2fs_dinode *));
    173      1.2    bouyer #	define e2fs_iload(old, new) e2fs_i_bswap((old), (new))
    174      1.2    bouyer #	define e2fs_isave(old, new) e2fs_i_bswap((old), (new))
    175      1.2    bouyer #endif
    176      1.7      matt 
    177      1.7      matt #endif /* !_UFS_EXT2FS_EXT2FS_DINODE_H_ */
    178