176 lines
6.6 KiB
C
176 lines
6.6 KiB
C
/* $NetBSD: disklabel.h,v 1.1 2002/03/06 02:13:41 simonb Exp $ */
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/*
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* Copyright 2000, 2001
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* Broadcom Corporation. All rights reserved.
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*
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* This software is furnished under license and may be used and copied only
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* in accordance with the following terms and conditions. Subject to these
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* conditions, you may download, copy, install, use, modify and distribute
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* modified or unmodified copies of this software in source and/or binary
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* form. No title or ownership is transferred hereby.
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*
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* 1) Any source code used, modified or distributed must reproduce and
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* retain this copyright notice and list of conditions as they appear in
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* the source file.
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*
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* 2) No right is granted to use any trade name, trademark, or logo of
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* Broadcom Corporation. Neither the "Broadcom Corporation" name nor any
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* trademark or logo of Broadcom Corporation may be used to endorse or
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* promote products derived from this software without the prior written
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* permission of Broadcom Corporation.
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*
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* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
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* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
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* FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
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* LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* from: $NetBSD: disklabel.h,v 1.4 2000/05/05 03:27:22 soren Exp */
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/*
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* Copyright (c) 1994 Christopher G. Demetriou
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_DISKLABEL_H_
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#define _MACHINE_DISKLABEL_H_
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#define LABELSECTOR 1 /* sector containing label */
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#define LABELOFFSET 0 /* offset of label in sector */
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#define MAXPARTITIONS 16
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#define RAW_PART 3
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#ifdef __NetBSD__
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/* Pull in MBR partition definitions. */
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#include <sys/disklabel_mbr.h>
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#ifndef __ASSEMBLER__
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#include <sys/dkbad.h>
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struct cpu_disklabel {
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struct mbr_partition dosparts[NMBRPART];
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struct dkbad bad;
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};
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#endif
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#endif
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/*
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* CFE boot block, modeled loosely on Alpha.
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*
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* It consists of:
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*
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* BSD disk label
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* <blank space>
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* Boot block info (5 uint_64s)
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*
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* The boot block portion looks like:
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*
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*
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* +-------+-------+-------+-------+-------+-------+-------+-------+
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* | BOOT_MAGIC_NUMBER |
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* +-------+-------+-------+-------+-------+-------+-------+-------+
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* | Flags | Reserved | Vers | Header Checksum |
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* +-------+-------+-------+-------+-------+-------+-------+-------+
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* | Secondary Loader Location (bytes) |
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* +-------+-------+-------+-------+-------+-------+-------+-------+
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* | Loader Checksum | Size of loader (bytes) |
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* +-------+-------+-------+-------+-------+-------+-------+-------+
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* | Reserved | Architecture Information |
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* +-------+-------+-------+-------+-------+-------+-------+-------+
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*
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* Boot block fields should always be read as 64-bit numbers.
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*
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*/
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struct boot_block {
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uint64_t bb_data[64]; /* data (disklabel, also as below) */
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};
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#define bb_magic bb_data[59] /* magic number */
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#define bb_hdrinfo bb_data[60] /* header checksum, ver, flags */
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#define bb_secstart bb_data[61] /* secondary start (bytes) */
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#define bb_secsize bb_data[62] /* secondary size (bytes) */
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#define bb_archinfo bb_data[63] /* architecture info */
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#define BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
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#define BOOT_BLOCK_BLOCKSIZE 512 /* block size for sec. size/start,
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* and for boot block itself
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*/
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#define BOOT_BLOCK_SIZE 40 /* 5 64-bit words */
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#define BOOT_MAGIC_NUMBER 0x43465631424f4f54
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#define BOOT_HDR_CHECKSUM_MASK 0x00000000FFFFFFFF
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#define BOOT_HDR_VER_MASK 0x000000FF00000000
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#define BOOT_HDR_VER_SHIFT 32
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#define BOOT_HDR_FLAGS_MASK 0xFF00000000000000
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#define BOOT_SECSIZE_MASK 0x00000000FFFFFFFF
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#define BOOT_DATA_CHECKSUM_MASK 0xFFFFFFFF00000000
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#define BOOT_DATA_CHECKSUM_SHIFT 32
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#define BOOT_ARCHINFO_MASK 0x00000000FFFFFFFF
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#define BOOT_HDR_VERSION 1
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#define CHECKSUM_BOOT_BLOCK(bb,cksum) \
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do { \
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uint32_t *_ptr = (uint32_t *) (bb); \
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uint32_t _cksum; \
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int _i; \
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\
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_cksum = 0; \
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for (_i = 0; \
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_i < (BOOT_BLOCK_SIZE / sizeof (uint32_t)); \
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_i++) \
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_cksum += _ptr[_i]; \
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*(cksum) = _cksum; \
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} while (0)
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#define CHECKSUM_BOOT_DATA(data,len,cksum) \
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do { \
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uint32_t *_ptr = (uint32_t *) (data); \
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uint32_t _cksum; \
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int _i; \
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\
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_cksum = 0; \
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for (_i = 0; \
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_i < ((len) / sizeof (uint32_t)); \
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_i++) \
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_cksum += _ptr[_i]; \
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*(cksum) = _cksum; \
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} while (0)
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#endif /* _MACHINE_DISKLABEL_H_ */
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