diff options
Diffstat (limited to 'include/sys/dklabel.h')
| -rw-r--r-- | include/sys/dklabel.h | 270 |
1 files changed, 3 insertions, 267 deletions
diff --git a/include/sys/dklabel.h b/include/sys/dklabel.h index 77d5da10e..df6bc4791 100644 --- a/include/sys/dklabel.h +++ b/include/sys/dklabel.h @@ -1,268 +1,4 @@ -/* - * 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 - */ -/* - * Copyright 1990-2002 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ +#ifndef _SPL_DKLABEL_H +#define _SPL_DKLABEL_H -#ifndef _SYS_DKLABEL_H -#define _SYS_DKLABEL_H - - - -#include <sys/isa_defs.h> -#include <sys/types32.h> -#include <sys/isa_defs.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Miscellaneous defines - */ -#define DKL_MAGIC 0xDABE /* magic number */ -#define FKL_MAGIC 0xff /* magic number for DOS floppies */ - -#if defined(_SUNOS_VTOC_16) -#define NDKMAP 16 /* # of logical partitions */ -#define DK_LABEL_LOC 1 /* location of disk label */ -#elif defined(_SUNOS_VTOC_8) -#define NDKMAP 8 /* # of logical partitions */ -#define DK_LABEL_LOC 0 /* location of disk label */ -#else -#error "No VTOC format defined." -#endif - -#define LEN_DKL_ASCII 128 /* length of dkl_asciilabel */ -#define LEN_DKL_VVOL 8 /* length of v_volume */ -#define DK_LABEL_SIZE 512 /* size of disk label */ -#define DK_MAX_BLOCKS 0x7fffffff /* max # of blocks handled */ - -/* - * Reserve two cylinders on SCSI disks. - * One is for the backup disk label and the other is for the deviceid. - * - * IPI disks only reserve one cylinder, but they will go away soon. - * CDROMs do not reserve any cylinders. - */ -#define DK_ACYL 2 - -/* - * Format of a Sun disk label. - * Resides in cylinder 0, head 0, sector 0. - * - * sizeof (struct dk_label) should be 512 (the current sector size), - * but should the sector size increase, this structure should remain - * at the beginning of the sector. - */ - -/* - * partition headers: section 1 - * Returned in struct dk_allmap by ioctl DKIOC[SG]APART (dkio(7I)) - */ -struct dk_map { - daddr_t dkl_cylno; /* starting cylinder */ - daddr_t dkl_nblk; /* number of blocks; if == 0, */ - /* partition is undefined */ -}; - -/* - * partition headers: section 1 - * Fixed size for on-disk dk_label - */ -struct dk_map32 { - daddr32_t dkl_cylno; /* starting cylinder */ - daddr32_t dkl_nblk; /* number of blocks; if == 0, */ - /* partition is undefined */ -}; - -/* - * partition headers: section 2, - * brought over from AT&T SVr4 vtoc structure. - */ -struct dk_map2 { - uint16_t p_tag; /* ID tag of partition */ - uint16_t p_flag; /* permission flag */ -}; - -struct dkl_partition { - uint16_t p_tag; /* ID tag of partition */ - uint16_t p_flag; /* permision flags */ - daddr32_t p_start; /* start sector no of partition */ - int32_t p_size; /* # of blocks in partition */ -}; - - -/* - * VTOC inclusions from AT&T SVr4 - * Fixed sized types for on-disk VTOC - */ - -struct dk_vtoc { -#if defined(_SUNOS_VTOC_16) - uint32_t v_bootinfo[3]; /* info for mboot (unsupported) */ - uint32_t v_sanity; /* to verify vtoc sanity */ - uint32_t v_version; /* layout version */ - char v_volume[LEN_DKL_VVOL]; /* volume name */ - uint16_t v_sectorsz; /* sector size in bytes */ - uint16_t v_nparts; /* number of partitions */ - uint32_t v_reserved[10]; /* free space */ - struct dkl_partition v_part[NDKMAP]; /* partition headers */ - time32_t timestamp[NDKMAP]; /* partition timestamp (unsupported) */ - char v_asciilabel[LEN_DKL_ASCII]; /* for compatibility */ -#elif defined(_SUNOS_VTOC_8) - uint32_t v_version; /* layout version */ - char v_volume[LEN_DKL_VVOL]; /* volume name */ - uint16_t v_nparts; /* number of partitions */ - struct dk_map2 v_part[NDKMAP]; /* partition hdrs, sec 2 */ - uint32_t v_bootinfo[3]; /* info needed by mboot */ - uint32_t v_sanity; /* to verify vtoc sanity */ - uint32_t v_reserved[10]; /* free space */ - time32_t v_timestamp[NDKMAP]; /* partition timestamp */ -#else -#error "No VTOC format defined." -#endif -}; - -/* - * define the amount of disk label padding needed to make - * the entire structure occupy 512 bytes. - */ -#if defined(_SUNOS_VTOC_16) -#define LEN_DKL_PAD (DK_LABEL_SIZE - \ - ((sizeof (struct dk_vtoc) + \ - (4 * sizeof (uint32_t)) + \ - (12 * sizeof (uint16_t)) + \ - (2 * (sizeof (uint16_t)))))) -#elif defined(_SUNOS_VTOC_8) -#define LEN_DKL_PAD (DK_LABEL_SIZE \ - - ((LEN_DKL_ASCII) + \ - (sizeof (struct dk_vtoc)) + \ - (sizeof (struct dk_map32) * NDKMAP) + \ - (14 * (sizeof (uint16_t))) + \ - (2 * (sizeof (uint16_t))))) -#else -#error "No VTOC format defined." -#endif - - -struct dk_label { -#if defined(_SUNOS_VTOC_16) - struct dk_vtoc dkl_vtoc; /* vtoc inclusions from AT&T SVr4 */ - uint32_t dkl_pcyl; /* # of physical cylinders */ - uint32_t dkl_ncyl; /* # of data cylinders */ - uint16_t dkl_acyl; /* # of alternate cylinders */ - uint16_t dkl_bcyl; /* cyl offset (for fixed head area) */ - uint32_t dkl_nhead; /* # of heads */ - uint32_t dkl_nsect; /* # of data sectors per track */ - uint16_t dkl_intrlv; /* interleave factor */ - uint16_t dkl_skew; /* skew factor */ - uint16_t dkl_apc; /* alternates per cyl (SCSI only) */ - uint16_t dkl_rpm; /* revolutions per minute */ - uint16_t dkl_write_reinstruct; /* # sectors to skip, writes */ - uint16_t dkl_read_reinstruct; /* # sectors to skip, reads */ - uint16_t dkl_extra[4]; /* for compatible expansion */ - char dkl_pad[LEN_DKL_PAD]; /* unused part of 512 bytes */ -#elif defined(_SUNOS_VTOC_8) - char dkl_asciilabel[LEN_DKL_ASCII]; /* for compatibility */ - struct dk_vtoc dkl_vtoc; /* vtoc inclusions from AT&T SVr4 */ - uint16_t dkl_write_reinstruct; /* # sectors to skip, writes */ - uint16_t dkl_read_reinstruct; /* # sectors to skip, reads */ - char dkl_pad[LEN_DKL_PAD]; /* unused part of 512 bytes */ - uint16_t dkl_rpm; /* rotations per minute */ - uint16_t dkl_pcyl; /* # physical cylinders */ - uint16_t dkl_apc; /* alternates per cylinder */ - uint16_t dkl_obs1; /* obsolete */ - uint16_t dkl_obs2; /* obsolete */ - uint16_t dkl_intrlv; /* interleave factor */ - uint16_t dkl_ncyl; /* # of data cylinders */ - uint16_t dkl_acyl; /* # of alternate cylinders */ - uint16_t dkl_nhead; /* # of heads in this partition */ - uint16_t dkl_nsect; /* # of 512 byte sectors per track */ - uint16_t dkl_obs3; /* obsolete */ - uint16_t dkl_obs4; /* obsolete */ - struct dk_map32 dkl_map[NDKMAP]; /* logical partition headers */ -#else -#error "No VTOC format defined." -#endif - uint16_t dkl_magic; /* identifies this label format */ - uint16_t dkl_cksum; /* xor checksum of sector */ -}; - -#if defined(_SUNOS_VTOC_16) -#define dkl_asciilabel dkl_vtoc.v_asciilabel -#define v_timestamp timestamp - -#elif defined(_SUNOS_VTOC_8) - -/* - * 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 */ -#else -#error "No VTOC format defined." -#endif - -struct fk_label { /* DOS floppy label */ - uchar_t fkl_type; - uchar_t fkl_magich; - uchar_t fkl_magicl; - uchar_t filler; -}; - -/* - * Layout of stored fabricated device id (on-disk) - */ -#define DK_DEVID_BLKSIZE (512) -#define DK_DEVID_SIZE (DK_DEVID_BLKSIZE - ((sizeof (uchar_t) * 7))) -#define DK_DEVID_REV_MSB (0) -#define DK_DEVID_REV_LSB (1) - -struct dk_devid { - uchar_t dkd_rev_hi; /* revision (MSB) */ - uchar_t dkd_rev_lo; /* revision (LSB) */ - uchar_t dkd_flags; /* flags (not used yet) */ - uchar_t dkd_devid[DK_DEVID_SIZE]; /* devid stored here */ - uchar_t dkd_checksum3; /* checksum (MSB) */ - uchar_t dkd_checksum2; - uchar_t dkd_checksum1; - uchar_t dkd_checksum0; /* checksum (LSB) */ -}; - -#define DKD_GETCHKSUM(dkd) ((dkd)->dkd_checksum3 << 24) + \ - ((dkd)->dkd_checksum2 << 16) + \ - ((dkd)->dkd_checksum1 << 8) + \ - ((dkd)->dkd_checksum0) - -#define DKD_FORMCHKSUM(c, dkd) (dkd)->dkd_checksum3 = hibyte(hiword((c))); \ - (dkd)->dkd_checksum2 = lobyte(hiword((c))); \ - (dkd)->dkd_checksum1 = hibyte(loword((c))); \ - (dkd)->dkd_checksum0 = lobyte(loword((c))); -#ifdef __cplusplus -} -#endif - -#endif /* _SYS_DKLABEL_H */ +#endif /* _SPL_DKLABEL_H */ |