2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* Copyright (c) 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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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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