87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2015.
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This file is part of Sortix libmount.
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Sortix libmount is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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Sortix libmount is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with Sortix libmount. If not, see <http://www.gnu.org/licenses/>.
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mount/mbr.h
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Master Boot Record.
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*******************************************************************************/
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#ifndef INCLUDE_MOUNT_MBR_H
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#define INCLUDE_MOUNT_MBR_H
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#include <sys/types.h>
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#include <assert.h>
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#include <stddef.h>
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#include <stdint.h>
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struct blockdevice;
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struct partition_table;
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struct mbr_partition
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{
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uint8_t flags;
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uint8_t start_head;
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uint16_t start_sector_cylinder;
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uint8_t system_id;
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uint8_t end_head;
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uint16_t end_sector_cylinder;
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uint32_t start_sector;
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uint32_t total_sectors;
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};
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static_assert(sizeof(struct mbr_partition) == 16, "sizeof(struct mbr_partition) == 16");
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struct mbr
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{
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uint8_t bootstrap[446];
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unsigned char partitions[4][16];
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uint8_t signature[2];
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};
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static_assert(sizeof(struct mbr) == 512, "sizeof(struct mbr) == 512");
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struct mbr_ebr_link
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{
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struct mbr ebr;
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off_t offset;
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};
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struct mbr_partition_table
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{
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struct mbr mbr;
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size_t ebr_chain_count;
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struct mbr_ebr_link* ebr_chain;
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};
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#if defined(__cplusplus)
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extern "C" {
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#endif
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bool mbr_is_partition_used(const struct mbr_partition* partition);
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void mbr_partition_decode(struct mbr_partition*);
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void mbr_partition_encode(struct mbr_partition*);
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void mbr_partition_table_release(struct mbr_partition_table*);
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#if defined(__cplusplus)
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} /* extern "C" */
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#endif
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#endif
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