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d27b5f9398
The MSDOS/MBR partition table includes a 32-bit unique ID, often referred to as the NT disk signature. When combined with a partition number within the table, this can form a unique ID similar in concept to EFI/GPT's partition UUID. This patch generates UUIDs in the format 0002dd75-01, which matches the format expected by the Linux kernel. Signed-off-by: Stephen Warren <swarren@nvidia.com>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef _DISK_PART_DOS_H
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#define _DISK_PART_DOS_H
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#define DOS_PART_DISKSIG_OFFSET 0x1b8
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#define DOS_PART_TBL_OFFSET 0x1be
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#define DOS_PART_MAGIC_OFFSET 0x1fe
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#define DOS_PBR_FSTYPE_OFFSET 0x36
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#define DOS_PBR32_FSTYPE_OFFSET 0x52
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#define DOS_PBR_MEDIA_TYPE_OFFSET 0x15
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#define DOS_MBR 0
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#define DOS_PBR 1
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typedef struct dos_partition {
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unsigned char boot_ind; /* 0x80 - active */
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unsigned char head; /* starting head */
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unsigned char sector; /* starting sector */
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unsigned char cyl; /* starting cylinder */
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unsigned char sys_ind; /* What partition type */
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unsigned char end_head; /* end head */
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unsigned char end_sector; /* end sector */
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unsigned char end_cyl; /* end cylinder */
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unsigned char start4[4]; /* starting sector counting from 0 */
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unsigned char size4[4]; /* nr of sectors in partition */
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} dos_partition_t;
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#endif /* _DISK_PART_DOS_H */
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