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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Copyright (c) 1987 by Sun Microsystems, Inc.
*/
#ifndef _sun_dklabel_h
#define _sun_dklabel_h
/*
* Miscellaneous defines
*/
#define DKL_MAGIC 0xDABE /* magic number */
#define FKL_MAGIC 0xff /* magic number for DOS floppies */
#define NDKMAP 8 /* # of logical partitions */
/*
* Format of a Sun SMD disk label.
* Resides in cylinder 0, head 0, sector 0.
*
* sizeof (struct dk_label) should be 512 (sector size)
*/
struct dk_label {
char dkl_asciilabel[128]; /* for compatibility */
char dkl_pad[512-(128+NDKMAP*8+14*2)];
unsigned short dkl_rpm; /* rotations per minute */
unsigned short dkl_pcyl; /* # physical cylinders */
unsigned short dkl_apc; /* alternates per cylinder */
unsigned short dkl_obs1; /* obsolete */
unsigned short dkl_obs2; /* obsolete */
unsigned short dkl_intrlv; /* interleave factor */
unsigned short dkl_ncyl; /* # of data cylinders */
unsigned short dkl_acyl; /* # of alternate cylinders */
unsigned short dkl_nhead; /* # of heads in this partition */
unsigned short dkl_nsect; /* # of 512 byte sectors per track */
unsigned short dkl_obs3; /* obsolete */
unsigned short dkl_obs4; /* obsolete */
/* */
struct dk_map { /* logical partitions */
daddr_t dkl_cylno; /* starting cylinder */
daddr_t dkl_nblk; /* number of blocks */
} dkl_map[NDKMAP];
unsigned short dkl_magic; /* identifies this label format */
unsigned short dkl_cksum; /* xor checksum of sector */
};
/*
* These defines are for historic compatibility with old drivers.
*/
#define dkl_gap1 dkl_obs1 /* used to be gap1 */
#define dkl_gap2 dkl_obs2 /* used to be gap2 */
#define dkl_bhead dkl_obs3 /* used to be label head offset */
#define dkl_ppart dkl_obs4 /* used to by physical partition */
struct fk_label { /* DOS floppy label */
u_char fkl_type;
u_char fkl_magich;
u_char fkl_magicl;
u_char filler;
};
#endif /*!_sun_dklabel_h*/
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