[apple/bootx.git] / bootx.tproj / fs.subproj / ext2fs_dinode.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*	$NetBSD: ext2fs_dinode.h,v 1.6 2000/01/26 16:21:33 bouyer Exp $	*/
/*
 * Copyright (c) 1997 Manuel Bouyer.
 * Copyright (c) 1982, 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
 *
 *	@(#)dinode.h	8.6 (Berkeley) 9/13/94
 *  Modified for ext2fs by Manuel Bouyer.
 */
/*
 *  ext2fs_dinode.h - Headers for Ext2 disk inode structures.
 *
 *  Copyright (c) 2000 Apple Computer, Inc.
 *
 *  DRI: Josh de Cesare
 */

/*
 * The root inode is the root of the file system.  Inode 0 can't be used for
 * normal purposes and bad blocks are normally linked to inode 1, thus
 * the root inode is 2.
 * Inode 3 to 10 are reserved in ext2fs.
 */
#define	EXT2_ROOTINO ((ino_t)2)
#define EXT2_FIRSTINO ((ino_t)11)

/*
 * A dinode contains all the meta-data associated with a UFS file.
 * This structure defines the on-disk format of a dinode. Since
 * this structure describes an on-disk structure, all its fields
 * are defined by types with precise widths.
 */

#define	NDADDR	12			/* Direct addresses in inode. */
#define	NIADDR	3			/* Indirect addresses in inode. */

#define EXT2_MAXSYMLINKLEN ((NDADDR+NIADDR) * sizeof (u_int32_t))

struct ext2fs_dinode {
	u_int16_t	e2di_mode;	/*   0: IFMT, permissions; see below. */
	u_int16_t	e2di_uid;	/*   2: Owner UID */
	u_int32_t	e2di_size;	/*	 4: Size (in bytes) */
	u_int32_t	e2di_atime;	/*	 8: Acces time */
	u_int32_t	e2di_ctime;	/*	12: Create time */
	u_int32_t	e2di_mtime;	/*	16: Modification time */
	u_int32_t	e2di_dtime;	/*	20: Deletion time */
	u_int16_t	e2di_gid;	/*  24: Owner GID */
	u_int16_t	e2di_nlink;	/*  26: File link count */
	u_int32_t	e2di_nblock;	/*  28: Blocks count */
	u_int32_t	e2di_flags;	/*  32: Status flags (chflags) */
	u_int32_t	e2di_linux_reserved1; /* 36 */
	u_int32_t	e2di_blocks[NDADDR+NIADDR]; /* 40: disk blocks */
	u_int32_t	e2di_gen;	/* 100: generation number */
	u_int32_t	e2di_facl;	/* 104: file ACL (not implemented) */
	u_int32_t	e2di_dacl;	/* 108: dir ACL (not implemented) */
	u_int32_t	e2di_faddr;	/* 112: fragment address */
	u_int8_t	e2di_nfrag;	/* 116: fragment number */
	u_int8_t	e2di_fsize;	/* 117: fragment size */
	u_int16_t	e2di_linux_reserved2; /* 118 */
	u_int32_t	e2di_linux_reserved3[2]; /* 120 */
};
	

	
#define	E2MAXSYMLINKLEN	((NDADDR + NIADDR) * sizeof(u_int32_t))

/* File permissions. */
#define	EXT2_IEXEC		0000100		/* Executable. */
#define	EXT2_IWRITE		0000200		/* Writeable. */
#define	EXT2_IREAD		0000400		/* Readable. */
#define	EXT2_ISVTX		0001000		/* Sticky bit. */
#define	EXT2_ISGID		0002000		/* Set-gid. */
#define	EXT2_ISUID		0004000		/* Set-uid. */

/* File types. */
#define	EXT2_IFMT		0170000		/* Mask of file type. */
#define	EXT2_IFIFO		0010000		/* Named pipe (fifo). */
#define	EXT2_IFCHR		0020000		/* Character device. */
#define	EXT2_IFDIR		0040000		/* Directory file. */
#define	EXT2_IFBLK		0060000		/* Block device. */
#define	EXT2_IFREG		0100000		/* Regular file. */
#define	EXT2_IFLNK		0120000		/* Symbolic link. */
#define	EXT2_IFSOCK		0140000		/* UNIX domain socket. */

/* file flags */
#define EXT2_SECRM		0x00000001	/* Secure deletion */
#define EXT2_UNRM		0x00000002	/* Undelete */
#define EXT2_COMPR		0x00000004	/* Compress file */
#define EXT2_SYNC		0x00000008	/* Synchronous updates */
#define EXT2_IMMUTABLE	0x00000010	/* Immutable file */
#define EXT2_APPEND		0x00000020	/* writes to file may only append */
#define EXT2_NODUMP		0x00000040	/* do not dump file */

/* Size of on-disk inode. */
#define	EXT2_DINODE_SIZE	(sizeof(struct ext2fs_dinode))	/* 128 */

/*
 * The e2di_blocks fields may be overlaid with other information for
 * file types that do not have associated disk storage. Block
 * and character devices overlay the first data block with their
 * dev_t value. Short symbolic links place their path in the
 * di_db area.
 */

#define e2di_rdev		e2di_blocks[0]
#define e2di_shortlink	e2di_blocks

/* e2fs needs byte swapping on big-endian systems */
#if BYTE_ORDER == LITTLE_ENDIAN
#	define e2fs_iload(old, new) memcpy((new),(old),sizeof(struct ext2fs_dinode))
#	define e2fs_isave(old, new) memcpy((new),(old),sizeof(struct ext2fs_dinode))
#else
void e2fs_i_bswap __P((struct ext2fs_dinode *, struct ext2fs_dinode *));
#	define e2fs_iload(old, new) e2fs_i_bswap((old), (new))
#	define e2fs_isave(old, new) e2fs_i_bswap((old), (new))
#endif
Commit	Line	Data
04fee52e A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
db839b1d	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
04fee52e	7	*
db839b1d A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
04fee52e A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
04fee52e A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
db839b1d A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
04fee52e A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/* $NetBSD: ext2fs_dinode.h,v 1.6 2000/01/26 16:21:33 bouyer Exp $ */
	26	/*
	27	* Copyright (c) 1997 Manuel Bouyer.
	28	* Copyright (c) 1982, 1989, 1993
	29	* The Regents of the University of California. All rights reserved.
	30	* (c) UNIX System Laboratories, Inc.
	31	* All or some portions of this file are derived from material licensed
	32	* to the University of California by American Telephone and Telegraph
	33	* Co. or Unix System Laboratories, Inc. and are reproduced herein with
	34	* the permission of UNIX System Laboratories, Inc.
	35	*
	36	* Redistribution and use in source and binary forms, with or without
	37	* modification, are permitted provided that the following conditions
	38	* are met:
	39	* 1. Redistributions of source code must retain the above copyright
	40	* notice, this list of conditions and the following disclaimer.
	41	* 2. Redistributions in binary form must reproduce the above copyright
	42	* notice, this list of conditions and the following disclaimer in the
	43	* documentation and/or other materials provided with the distribution.
	44	* 3. All advertising materials mentioning features or use of this software
	45	* must display the following acknowledgement:
	46	* This product includes software developed by the University of
	47	* California, Berkeley and its contributors.
	48	* 4. Neither the name of the University nor the names of its contributors
	49	* may be used to endorse or promote products derived from this software
	50	* without specific prior written permission.
	51	*
	52	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	53	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	54	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	55	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	56	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	57	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	58	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	59	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	60	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	61	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	62	* SUCH DAMAGE.
	63	*
	64	* @(#)dinode.h 8.6 (Berkeley) 9/13/94
	65	* Modified for ext2fs by Manuel Bouyer.
	66	*/
	67	/*
	68	* ext2fs_dinode.h - Headers for Ext2 disk inode structures.
	69	*
	70	* Copyright (c) 2000 Apple Computer, Inc.
	71	*
	72	* DRI: Josh de Cesare
	73	*/
	74
	75	/*
	76	* The root inode is the root of the file system. Inode 0 can't be used for
	77	* normal purposes and bad blocks are normally linked to inode 1, thus
	78	* the root inode is 2.
	79	* Inode 3 to 10 are reserved in ext2fs.
	80	*/
	81	#define EXT2_ROOTINO ((ino_t)2)
	82	#define EXT2_FIRSTINO ((ino_t)11)
	83
	84	/*
	85	* A dinode contains all the meta-data associated with a UFS file.
86	* This structure defines the on-disk format of a dinode. Since
87	* this structure describes an on-disk structure, all its fields
88	* are defined by types with precise widths.
89	*/
90
91	#define NDADDR 12 /* Direct addresses in inode. */
92	#define NIADDR 3 /* Indirect addresses in inode. */
93
94	#define EXT2_MAXSYMLINKLEN ((NDADDR+NIADDR) * sizeof (u_int32_t))
95
96	struct ext2fs_dinode {
97	u_int16_t e2di_mode; /* 0: IFMT, permissions; see below. */
98	u_int16_t e2di_uid; /* 2: Owner UID */
99	u_int32_t e2di_size; /* 4: Size (in bytes) */
100	u_int32_t e2di_atime; /* 8: Acces time */
101	u_int32_t e2di_ctime; /* 12: Create time */
102	u_int32_t e2di_mtime; /* 16: Modification time */
103	u_int32_t e2di_dtime; /* 20: Deletion time */
104	u_int16_t e2di_gid; /* 24: Owner GID */
105	u_int16_t e2di_nlink; /* 26: File link count */
106	u_int32_t e2di_nblock; /* 28: Blocks count */
107	u_int32_t e2di_flags; /* 32: Status flags (chflags) */
108	u_int32_t e2di_linux_reserved1; /* 36 */
109	u_int32_t e2di_blocks[NDADDR+NIADDR]; /* 40: disk blocks */
110	u_int32_t e2di_gen; /* 100: generation number */
111	u_int32_t e2di_facl; /* 104: file ACL (not implemented) */
112	u_int32_t e2di_dacl; /* 108: dir ACL (not implemented) */
113	u_int32_t e2di_faddr; /* 112: fragment address */
114	u_int8_t e2di_nfrag; /* 116: fragment number */
115	u_int8_t e2di_fsize; /* 117: fragment size */
116	u_int16_t e2di_linux_reserved2; /* 118 */
117	u_int32_t e2di_linux_reserved3[2]; /* 120 */
118	};
119
120
121
122	#define E2MAXSYMLINKLEN ((NDADDR + NIADDR) * sizeof(u_int32_t))
123
124	/* File permissions. */
125	#define EXT2_IEXEC 0000100 /* Executable. */
126	#define EXT2_IWRITE 0000200 /* Writeable. */
127	#define EXT2_IREAD 0000400 /* Readable. */
128	#define EXT2_ISVTX 0001000 /* Sticky bit. */
129	#define EXT2_ISGID 0002000 /* Set-gid. */
130	#define EXT2_ISUID 0004000 /* Set-uid. */
131
132	/* File types. */
133	#define EXT2_IFMT 0170000 /* Mask of file type. */
134	#define EXT2_IFIFO 0010000 /* Named pipe (fifo). */
135	#define EXT2_IFCHR 0020000 /* Character device. */
136	#define EXT2_IFDIR 0040000 /* Directory file. */
137	#define EXT2_IFBLK 0060000 /* Block device. */
138	#define EXT2_IFREG 0100000 /* Regular file. */
139	#define EXT2_IFLNK 0120000 /* Symbolic link. */
140	#define EXT2_IFSOCK 0140000 /* UNIX domain socket. */
141
142	/* file flags */
143	#define EXT2_SECRM 0x00000001 /* Secure deletion */
144	#define EXT2_UNRM 0x00000002 /* Undelete */
145	#define EXT2_COMPR 0x00000004 /* Compress file */
146	#define EXT2_SYNC 0x00000008 /* Synchronous updates */
147	#define EXT2_IMMUTABLE 0x00000010 /* Immutable file */
148	#define EXT2_APPEND 0x00000020 /* writes to file may only append */
149	#define EXT2_NODUMP 0x00000040 /* do not dump file */
150
151	/* Size of on-disk inode. */
152	#define EXT2_DINODE_SIZE (sizeof(struct ext2fs_dinode)) /* 128 */
153
154	/*
155	* The e2di_blocks fields may be overlaid with other information for
156	* file types that do not have associated disk storage. Block
157	* and character devices overlay the first data block with their
158	* dev_t value. Short symbolic links place their path in the
159	* di_db area.
160	*/
161
162	#define e2di_rdev e2di_blocks[0]
163	#define e2di_shortlink e2di_blocks
164
165	/* e2fs needs byte swapping on big-endian systems */
166	#if BYTE_ORDER == LITTLE_ENDIAN
167	# define e2fs_iload(old, new) memcpy((new),(old),sizeof(struct ext2fs_dinode))
168	# define e2fs_isave(old, new) memcpy((new),(old),sizeof(struct ext2fs_dinode))
169	#else
170	void e2fs_i_bswap __P((struct ext2fs_dinode , struct ext2fs_dinode ));
171	# define e2fs_iload(old, new) e2fs_i_bswap((old), (new))
172	# define e2fs_isave(old, new) e2fs_i_bswap((old), (new))
173	#endif