[apple/xnu.git] / bsd / sys / disktab.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * HISTORY:
 * 16-Mar-88  John Seamons (jks) at NeXT
 *	Cleaned up to support standard disk label definitions.
 *
 * 24-Feb-88  Mike DeMoney (mike) at NeXT
 *	Added d_boot0_blkno to indicate logical block number
 *	of "block 0" boot.  This blkno is in d_secsize sectors.
 *	Added d_bootfile to indicate the default operating system
 *	image to be booted by the blk 0 boot.
 *	Changed d_name and d_type to be char arrays rather than ptrs
 *	so they are part of label.  This limits length of info in
 *	/etc/disktab, sorry.
 */

#ifndef	_SYS_DISKTAB_
#define	_SYS_DISKTAB_

#include <sys/appleapiopts.h>

#ifdef	__APPLE_API_OBSOLETE

/*
 * Disk description table, see disktab(5)
 */
#ifndef KERNEL
#define	DISKTAB		"/etc/disktab"
#endif	/* !KERNEL */

#define	MAXDNMLEN	24	// drive name length
#define	MAXMPTLEN	16	// mount point length
#define	MAXFSTLEN	8	// file system type length
#define	MAXTYPLEN	24	// drive type length
#define	NBOOTS		2	// # of boot blocks
#define	MAXBFLEN 	24	// bootfile name length
#define	MAXHNLEN 	32	// host name length
#define	NPART		8	// # of partitions

typedef struct partition {
	int	p_base;		/* base sector# of partition */
	int	p_size;		/* #sectors in partition */
	short	p_bsize;	/* block size in bytes */
	short	p_fsize;	/* frag size in bytes */
	char	p_opt;		/* 's'pace/'t'ime optimization pref */
	short	p_cpg;		/* cylinders per group */
	short	p_density;	/* bytes per inode density */
	char	p_minfree;	/* minfree (%) */
	char	p_newfs;	/* run newfs during init */
	char	p_mountpt[MAXMPTLEN];/* mount point */
	char	p_automnt;	/* auto-mount when inserted */
	char	p_type[MAXFSTLEN];/* file system type */
} partition_t;

typedef struct disktab {
	char	d_name[MAXDNMLEN];	/* drive name */
	char	d_type[MAXTYPLEN];	/* drive type */
	int	d_secsize;		/* sector size in bytes */
	int	d_ntracks;		/* # tracks/cylinder */
	int	d_nsectors;		/* # sectors/track */
	int	d_ncylinders;		/* # cylinders */
	int	d_rpm;			/* revolutions/minute */
	short	d_front;		/* size of front porch (sectors) */
	short	d_back;			/* size of back porch (sectors) */
	short	d_ngroups;		/* number of alt groups */
	short	d_ag_size;		/* alt group size (sectors) */
	short	d_ag_alts;		/* alternate sectors / alt group */
	short	d_ag_off;		/* sector offset to first alternate */
	int	d_boot0_blkno[NBOOTS];	/* "blk 0" boot locations */
	char	d_bootfile[MAXBFLEN];	/* default bootfile */
	char	d_hostname[MAXHNLEN];	/* host name */
	char	d_rootpartition;	/* root partition e.g. 'a' */
	char	d_rwpartition;		/* r/w partition e.g. 'b' */
	partition_t d_partitions[NPART];
} disktab_t;

#ifndef KERNEL
struct	disktab *getdiskbyname(), *getdiskbydev();
#endif	/* !KERNEL */

#endif	/* __APPLE_API_OBSOLETE */

#endif	/* _SYS_DISKTAB_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
e5568f75 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
e5568f75 A	12	* This Original Code and all software distributed under the License are
e5568f75 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
e5568f75 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* HISTORY:
	24	* 16-Mar-88 John Seamons (jks) at NeXT
	25	* Cleaned up to support standard disk label definitions.
	26	*
	27	* 24-Feb-88 Mike DeMoney (mike) at NeXT
	28	* Added d_boot0_blkno to indicate logical block number
	29	* of "block 0" boot. This blkno is in d_secsize sectors.
	30	* Added d_bootfile to indicate the default operating system
	31	* image to be booted by the blk 0 boot.
	32	* Changed d_name and d_type to be char arrays rather than ptrs
	33	* so they are part of label. This limits length of info in
	34	* /etc/disktab, sorry.
	35	*/
	36
	37	#ifndef _SYS_DISKTAB_
9bccf70c A	38	#define _SYS_DISKTAB_
	39
	40	#include <sys/appleapiopts.h>
	41
	42	#ifdef __APPLE_API_OBSOLETE
1c79356b A	43
	44	/*
	45	* Disk description table, see disktab(5)
	46	*/
	47	#ifndef KERNEL
	48	#define DISKTAB "/etc/disktab"
	49	#endif /* !KERNEL */
	50
	51	#define MAXDNMLEN 24 // drive name length
	52	#define MAXMPTLEN 16 // mount point length
	53	#define MAXFSTLEN 8 // file system type length
	54	#define MAXTYPLEN 24 // drive type length
	55	#define NBOOTS 2 // # of boot blocks
	56	#define MAXBFLEN 24 // bootfile name length
	57	#define MAXHNLEN 32 // host name length
	58	#define NPART 8 // # of partitions
	59
	60	typedef struct partition {
	61	int p_base; /* base sector# of partition */
	62	int p_size; /* #sectors in partition */
	63	short p_bsize; /* block size in bytes */
	64	short p_fsize; /* frag size in bytes */
	65	char p_opt; /* 's'pace/'t'ime optimization pref */
	66	short p_cpg; /* cylinders per group */
	67	short p_density; /* bytes per inode density */
	68	char p_minfree; /* minfree (%) */
	69	char p_newfs; /* run newfs during init */
	70	char p_mountpt[MAXMPTLEN];/* mount point */
	71	char p_automnt; /* auto-mount when inserted */
	72	char p_type[MAXFSTLEN];/* file system type */
	73	} partition_t;
	74
	75	typedef struct disktab {
	76	char d_name[MAXDNMLEN]; /* drive name */
	77	char d_type[MAXTYPLEN]; /* drive type */
	78	int d_secsize; /* sector size in bytes */
	79	int d_ntracks; /* # tracks/cylinder */
	80	int d_nsectors; /* # sectors/track */
	81	int d_ncylinders; /* # cylinders */
	82	int d_rpm; /* revolutions/minute */
	83	short d_front; /* size of front porch (sectors) */
	84	short d_back; /* size of back porch (sectors) */
	85	short d_ngroups; /* number of alt groups */
	86	short d_ag_size; /* alt group size (sectors) */
	87	short d_ag_alts; /* alternate sectors / alt group */
	88	short d_ag_off; /* sector offset to first alternate */
	89	int d_boot0_blkno[NBOOTS]; /* "blk 0" boot locations */
	90	char d_bootfile[MAXBFLEN]; /* default bootfile */
	91	char d_hostname[MAXHNLEN]; /* host name */
	92	char d_rootpartition; /* root partition e.g. 'a' */
	93	char d_rwpartition; /* r/w partition e.g. 'b' */
	94	partition_t d_partitions[NPART];
	95	} disktab_t;
	96
	97	#ifndef KERNEL
	98	struct disktab getdiskbyname(), getdiskbydev();
	99	#endif /* !KERNEL */
	100
9bccf70c A	101	#endif /* __APPLE_API_OBSOLETE */
9bccf70c A	102
1c79356b	103	#endif /* _SYS_DISKTAB_ */