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//
// mbr.h
//
// Master Boot Record
//
// Copyright (C) 2002 Michael Ringgaard. 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. Neither the name of the project nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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 MBR_H
#define MBR_H
#define MBR_SIGNATURE 0xAA55
#define SANOS_BOOT_PARTITION_ID 0xCC
#pragma pack(push, 1)
struct disk_partition {
unsigned char bootid; // Bootable? 0=no, 128=yes
unsigned char beghead; // Beginning head number
unsigned char begsect; // Beginning sector number
unsigned char begcyl; // 10 bit nmbr, with high 2 bits put in begsect
unsigned char systid; // Operating System type indicator code
unsigned char endhead; // Ending head number
unsigned char endsect; // Ending sector number
unsigned char endcyl; // Also a 10 bit nmbr, with same high 2 bit trick
unsigned int relsect; // First sector relative to start of disk
unsigned int numsect; // Number of sectors in partition
};
struct master_boot_record {
char bootstrap[446];
struct disk_partition parttab[4];
unsigned short signature;
};
struct boot_sector {
char prolog[4];
char label[8];
unsigned short ldrsize;
unsigned long ldrstart;
char bootstrap[492];
unsigned short signature;
};
#pragma pack(pop)
#endif