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60 lines
2 KiB
C
60 lines
2 KiB
C
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FUSEE_GPT_H
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#define FUSEE_GPT_H
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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typedef struct efi_entry_t {
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uint8_t type_uuid[16];
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uint8_t unique_uuid[16];
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uint64_t first_lba;
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uint64_t last_lba; /* Inclusive */
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uint64_t attributes;
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uint16_t name[36];
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} efi_entry_t;
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typedef struct efi_header {
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uint8_t magic[8]; /* Must be "EFI PART" */
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uint32_t revision;
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uint32_t header_size; /* Usually and at most 92 bytes. */
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uint32_t header_crc32; /* 0 during the computation */
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uint32_t reserved; /* Must be 0. */
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uint64_t header_lba;
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uint64_t backup_lba;
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uint64_t partitions_first_lba;
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uint64_t partitions_last_lba;
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uint8_t disk_guid[16];
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uint64_t entries_first_lba;
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uint32_t entry_count;
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uint32_t entry_size;
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uint32_t entries_crc32;
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} __attribute__((packed, aligned(4))) efi_header_t;
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typedef int (*gpt_entry_iterator_t)(const efi_entry_t *entry, void *param, size_t entry_offset, FILE *disk);
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typedef int (*gpt_emu_entry_iterator_t)(const efi_entry_t *entry, void *param, size_t entry_offset, FILE *disk, const char *origin_path, int num_parts, uint64_t part_limit);
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int gpt_get_header(efi_header_t *out, FILE *disk, size_t sector_size);
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int gpt_iterate_through_entries(FILE *disk, size_t sector_size, gpt_entry_iterator_t callback, void *param);
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#endif
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