9b214e3a53
* util/mkisofs/msdos_partition.h: New file (based on
include/grub/msdos_partition.h).
* util/mkisofs/mkisofs.c (use_protective_msdos_label): New variable.
(OPTION_PROTECTIVE_MSDOS_LABEL): New macro.
(ld_options, main): Recognize --protective-msdos-label.
* util/mkisofs/mkisofs.h (use_protective_msdos_label): New declaration.
* util/mkisofs/write.c: Include `"msdos_partition.h"'.
(padblock_write): If `use_protective_msdos_label' is set, patch a
protective DOS-style label in the output image.
* util/grub-mkrescue.in: Use --protective-msdos-label.
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 1999,2000,2001,2002,2004,2007 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef MSDOS_PARTITION_H
|
|
#define MSDOS_PARTITION_H 1
|
|
|
|
#include <stdint.h>
|
|
|
|
/* The signature. */
|
|
#define MSDOS_PARTITION_SIGNATURE ((0xaa << 8) | 0x55)
|
|
|
|
/* This is not a flag actually, but used as if it were a flag. */
|
|
#define MSDOS_PARTITION_TYPE_HIDDEN_FLAG 0x10
|
|
|
|
/* The partition entry. */
|
|
struct msdos_partition_entry
|
|
{
|
|
/* If active, 0x80, otherwise, 0x00. */
|
|
uint8_t flag;
|
|
|
|
/* The head of the start. */
|
|
uint8_t start_head;
|
|
|
|
/* (S | ((C >> 2) & 0xC0)) where S is the sector of the start and C
|
|
is the cylinder of the start. Note that S is counted from one. */
|
|
uint8_t start_sector;
|
|
|
|
/* (C & 0xFF) where C is the cylinder of the start. */
|
|
uint8_t start_cylinder;
|
|
|
|
/* The partition type. */
|
|
uint8_t type;
|
|
|
|
/* The end versions of start_head, start_sector and start_cylinder,
|
|
respectively. */
|
|
uint8_t end_head;
|
|
uint8_t end_sector;
|
|
uint8_t end_cylinder;
|
|
|
|
/* The start sector. Note that this is counted from zero. */
|
|
uint32_t start;
|
|
|
|
/* The length in sector units. */
|
|
uint32_t length;
|
|
} __attribute__ ((packed));
|
|
|
|
/* The structure of MBR. */
|
|
struct msdos_partition_mbr
|
|
{
|
|
/* The code area (actually, including BPB). */
|
|
uint8_t code[446];
|
|
|
|
/* Four partition entries. */
|
|
struct msdos_partition_entry entries[4];
|
|
|
|
/* The signature 0xaa55. */
|
|
uint16_t signature;
|
|
} __attribute__ ((packed));
|
|
|
|
#endif
|