| 1 | /*
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| 2 | * Copyright (c) 2015 Jiri Svoboda
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup bd
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #ifndef LIBLABEL_STD_GPT_H_
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| 36 | #define LIBLABEL_STD_GPT_H_
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| 37 |
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| 38 | #include <stdint.h>
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| 39 |
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| 40 | enum {
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| 41 | /** Block address of primary GPT header. */
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| 42 | gpt_hdr_ba = 1,
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| 43 |
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| 44 | /** Minimum size of partition table in bytes, required by std. */
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| 45 | gpt_ptable_min_size = 16384,
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| 46 |
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| 47 | /** GPT revision */
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| 48 | gpt_revision = 0x00010000
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| 49 | };
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| 50 |
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| 51 | /** GPT header */
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| 52 | typedef struct {
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| 53 | uint8_t efi_signature[8];
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| 54 | uint32_t revision;
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| 55 | uint32_t header_size;
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| 56 | uint32_t header_crc32;
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| 57 | uint32_t reserved;
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| 58 | uint64_t my_lba;
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| 59 | uint64_t alternate_lba;
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| 60 | uint64_t first_usable_lba;
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| 61 | uint64_t last_usable_lba;
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| 62 | uint8_t disk_guid[16];
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| 63 | uint64_t entry_lba;
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| 64 | uint32_t num_entries;
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| 65 | uint32_t entry_size;
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| 66 | uint32_t pe_array_crc32;
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| 67 | } __attribute__((packed)) gpt_header_t;
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| 68 |
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| 69 | /** GPT partition entry */
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| 70 | typedef struct {
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| 71 | uint8_t part_type[16];
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| 72 | uint8_t part_id[16];
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| 73 | uint64_t start_lba;
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| 74 | uint64_t end_lba;
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| 75 | uint64_t attributes;
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| 76 | uint16_t part_name[36];
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| 77 | } __attribute__((packed)) gpt_entry_t;
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| 78 |
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| 79 | /** Microsoft Basic Data Partition */
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| 80 | #define GPT_MS_BASIC_DATA "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7"
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| 81 | /** Linux Filesystem Data */
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| 82 | #define GPT_LINUX_FS_DATA "0FC63DAF-8483-4772-8E79-3D69D8477DE4"
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| 83 | /** I could not find any definition of Minix GUID partition type.
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| 84 | * This is a randomly generated UUID
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| 85 | */
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| 86 | #define GPT_MINIX_FAKE "8308e350-4e2d-46c7-8e3b-24b07e8ac674"
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| 87 |
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| 88 | #endif
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| 89 |
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| 90 | /** @}
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| 91 | */
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