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/* $OpenBSD: disklabel.h,v 1.2 1996/05/02 06:44:45 niklas Exp $ */
/* $NetBSD: disklabel.h,v 1.6 1996/04/21 21:13:19 veego Exp $ */
/*
* Copyright (c) 1994 Christian E. Hopps
* 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 Christian E. Hopps.
* 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 64 /* offset of label in sector */
#define MAXPARTITIONS 16 /* number of partitions */
#define RAW_PART 2 /* raw partition: xx?c */
/*
* describes ados Rigid Disk Blocks
* which are used to partition a drive
*/
#define RDBNULL ((u_long)0xffffffff)
/*
* you will find rdblock somewhere in [0, RDBMAXBLOCKS)
*/
#define RDB_MAXBLOCKS 16
struct rdblock {
u_long id; /* 'RDSK' */
u_long nsumlong; /* number of longs in check sum */
u_long chksum; /* simple additive with wrap checksum */
u_long hostid; /* scsi target of host */
u_long nbytes; /* size of disk blocks */
u_long flags;
u_long badbhead; /* linked list of badblocks */
u_long partbhead; /* linked list of partblocks */
u_long fsbhead; /* " " of fsblocks */
u_long driveinit;
u_long resv1[6]; /* RDBNULL */
u_long ncylinders; /* number of cylinders on drive */
u_long nsectors; /* number of sectors per track */
u_long nheads; /* number of tracks per cylinder */
u_long interleave;
u_long park; /* only used with st506 i.e. not */
u_long resv2[3];
u_long wprecomp; /* start cyl for write precomp */
u_long reducedwrite; /* start cyl for reduced write current */
u_long steprate; /* driver step rate in ?s */
u_long resv3[5];
u_long rdblowb; /* lowblock of range for rdb's */
u_long rdbhighb; /* high block of range for rdb's */
u_long lowcyl; /* low cylinder of partition area */
u_long highcyl; /* upper cylinder of partition area */
u_long secpercyl; /* number of sectors per cylinder */
u_long parkseconds; /* zero if no park needed */
u_long resv4[2];
char diskvendor[8]; /* inquiry stuff */
char diskproduct[16]; /* inquiry stuff */
char diskrevision[4]; /* inquiry stuff */
char contvendor[8]; /* inquiry stuff */
char contproduct[16]; /* inquiry stuff */
char contrevision[4]; /* inquiry stuff */
#if never_use_secsize
u_long resv5[0];
#endif
};
#define RDBF_LAST 0x1 /* last drive available */
#define RDBF_LASTLUN 0x2 /* last LUN available */
#define RDBF_LASTUNIT 0x4 /* last target available */
#define RDBF_NORESELECT 0x8 /* do not use reselect */
#define RDBF_DISKID 0x10 /* disk id is valid ?? */
#define RDBF_CTRLID 0x20 /* ctrl id is valid ?? */
#define RDBF_SYNC 0x40 /* drive supports SCSI synchronous mode */
struct ados_environ {
u_long tabsize; /* 0: environ table size */
u_long sizeblock; /* 1: n long words in a block */
u_long secorg; /* 2: not used must be zero */
u_long numheads; /* 3: number of surfaces */
u_long secperblk; /* 4: must be 1 */
u_long secpertrk; /* 5: blocks per track */
u_long resvblocks; /* 6: reserved blocks at start */
u_long prefac; /* 7: must be 0 */
u_long interleave; /* 8: normally 1 */
u_long lowcyl; /* 9: low cylinder of partition */
u_long highcyl; /* 10: upper cylinder of partition */
u_long numbufs; /* 11: ados: number of buffers */
u_long membuftype; /* 12: ados: type of bufmem */
u_long maxtrans; /* 13: maxtrans the ctrlr supports */
u_long mask; /* 14: mask for valid address */
u_long bootpri; /* 15: boot priority for autoboot */
u_long dostype; /* 16: filesystem type */
u_long baud; /* 17: serial handler baud rate */
u_long control; /* 18: control word for fs */
u_long bootblocks; /* 19: blocks containing boot code */
u_long fsize; /* 20: file system block size */
u_long frag; /* 21: allowable frags per block */
u_long cpg; /* 22: cylinders per group */
};
struct partblock {
u_long id; /* 'PART' */
u_long nsumlong; /* number of longs in check sum */
u_long chksum; /* simple additive with wrap checksum */
u_long hostid; /* scsi target of host */
u_long next; /* next in chain */
u_long flags; /* see below */
u_long resv1[3];
u_char partname[32]; /* (BCPL) part name (may not be unique) */
u_long resv2[15];
struct ados_environ e;
#if never_use_secsize
u_long extra[9]; /* 8 for extra added to environ */
#endif
};
#define PBF_BOOTABLE 0x1 /* partition is bootable */
#define PBF_NOMOUNT 0x2 /* partition should be mounted */
struct badblock {
u_long id; /* 'BADB' */
u_long nsumlong; /* number of longs in check sum */
u_long chksum; /* simple additive with wrap checksum */
u_long hostid; /* scsi target of host */
u_long next; /* next in chain */
u_long resv;
struct badblockent {
u_long badblock;
u_long goodblock;
} badtab[0]; /* 61 for secsize == 512 */
};
struct fsblock {
u_long id; /* 'FSHD' */
u_long nsumlong; /* number of longs in check sum */
u_long chksum; /* simple additive with wrap checksum */
u_long hostid; /* scsi target of host */
u_long next; /* next in chain */
u_long flags;
u_long resv1[2];
u_long dostype; /* this is a file system for this type */
u_long version; /* version of this fs */
u_long patchflags; /* describes which functions to replace */
u_long type; /* zero */
u_long task; /* zero */
u_long lock; /* zero */
u_long handler; /* zero */
u_long stacksize; /* to use when loading handler */
u_long priority; /* to run the fs at. */
u_long startup; /* zero */
u_long lsegblocks; /* linked list of lsegblocks of fs code */
u_long globalvec; /* bcpl vector not used mostly */
#if never_use_secsize
u_long resv2[44];
#endif
};
struct lsegblock {
u_long id; /* 'LSEG' */
u_long nsumlong; /* number of longs in check sum */
u_long chksum; /* simple additive with wrap checksum */
u_long hostid; /* scsi target of host */
u_long next; /* next in chain */
u_long loaddata[0]; /* load segment data, 123 for secsize == 512 */
};
#define RDBLOCK_ID 0x5244534b /* 'RDSK' */
#define PARTBLOCK_ID 0x50415254 /* 'PART' */
#define BADBLOCK_ID 0x42414442 /* 'BADB' */
#define FSBLOCK_ID 0x46534844 /* 'FSHD' */
#define LSEGBLOCK_ID 0x4c534547 /* 'LSEG' */
struct cpu_disklabel {
u_long rdblock; /* may be RDBNULL which invalidates */
u_long pblist[MAXPARTITIONS]; /* partblock number (RDB list order) */
int pbindex[MAXPARTITIONS]; /* index of pblock (partition order) */
int valid; /* essential that this is valid */
};
#endif /* _MACHINE_DISKLABEL_H_ */
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