NetBSD/sys/arch/next68k/include/disklabel.h

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1998-06-09 11:53:05 +04:00
/* $NetBSD: disklabel.h,v 1.1.1.1 1998/06/09 07:53:05 dbj Exp $ */
/*
* Copyright (c) 1994 Rolf Grossmann
* All rights reserved.
*
* 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 Rolf Grossmann.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _MACHINE_DISKLABEL_H_
#define _MACHINE_DISKLABEL_H_
#define LABELSECTOR 0 /* sector containing label */
#define LABELOFFSET 0 /* offset of label in sector */
#define LABELSIZE 8192 /* size of label */
#define MAXPARTITIONS 8 /* number of partitions */
#define RAW_PART 2 /* raw partition: xx?c */
#define CD_V1 0x4e655854 /* version #1: "NeXT" */
#define CD_V2 0x646c5632 /* version #2: "dlV2" */
#define CD_V3 0x646c5633 /* version #3: "dlV3" */
#define IS_DISKLABEL(l) ((l)->cd_version == CD_V1 || (l)->cd_version == CD_V2 \
|| (l)->cd_version == CD_V3)
/* XXX should we really size all this stuff this way ? */
#define CPULBLLEN 24
#define MAXDNMLEN 24
#define MAXTYPLEN 24
#define MAXBFLEN 24
#define MAXHNLEN 32
#define MAXMPTLEN 16
#define MAXFSTLEN 8
/* The disklabel the way it is on the disk */
struct cpu_disklabel {
int cd_version; /* label version */
int cd_label_blkno; /* block # of this label */
int cd_size; /* size of media area (sectors) */
char cd_label[CPULBLLEN]; /* disk name (label) */
u_int cd_flags; /* flags */
#define CD_UNINIT 0x80000000 /* label is uninitialized */
u_int cd_tag; /* volume tag */
char cd_name[MAXDNMLEN]; /* drive (hardware) name */
char cd_type[MAXTYPLEN]; /* drive type */
int cd_secsize; /* # of bytes per sector */
int cd_ntracks; /* # of tracks per cylinder */
int cd_nsectors; /* # of data sectors per track */
int cd_ncylinders; /* # of data cylinders per unit */
int cd_rpm; /* rotational speed */
short cd_front; /* # of sectors in "front porch" */
short cd_back; /* # of sectors in "back porch" */
short cd_ngroups; /* # of alt groups */
short cd_ag_size; /* alt group size (sectors) */
short cd_ag_alts; /* alternate sectors / alt group */
short cd_ag_off; /* sector offset to first alternate */
int cd_boot_blkno[2]; /* boot program locations */
char cd_kernel[MAXBFLEN]; /* default kernel name */
char cd_hostname[MAXHNLEN]; /* host name (usu. where disk was labeled) */
char cd_rootpartition; /* root partition letter e.g. 'a' */
char cd_rwpartition; /* r/w partition letter e.g. 'b' */
struct cpu_partition {
int cp_offset; /* starting sector */
int cp_size; /* number of sectors in partition */
short cp_bsize; /* block size in bytes */
short cp_fsize; /* filesystem basic fragment size */
char cp_opt; /* optimization type: 's'pace/'t'ime */
short cp_cpg; /* filesystem cylinders per group */
short cp_density; /* bytes per inode density */
char cp_minfree; /* minfree (%) */
short cp_reserved; /* no useful data here */
char cp_mountpt[MAXMPTLEN];/* default/standard mount point */
char cp_automnt; /* auto-mount when inserted */
char cp_res2; /* alignment byte */
char cp_type[MAXFSTLEN]; /* file system type name */
} cd_partitions[MAXPARTITIONS];
union {
u_short CD_v3_checksum; /* label version 3 checksum */
#define NBAD 1670 /* sized to make label ~= 8KB */
int CD_bad[NBAD]; /* block number that is bad */
} cd_un;
#define cd_v3_checksum cd_un.CD_v3_checksum
#define cd_bad cd_un.CD_bad
u_short cd_checksum; /* label version 1 or 2 checksum */
};
#endif /* _MACHINE_DISKLABEL_H_ */