/usr/include/efi/efipart.h is in gnu-efi 3.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | #ifndef _EFI_PART_H
#define _EFI_PART_H
/*++
Copyright (c) 1998 Intel Corporation
Module Name:
efipart.h
Abstract:
Info about disk partitions and Master Boot Records
Revision History
--*/
//
//
//
#define EFI_PARTITION 0xef
#define MBR_SIZE 512
#pragma pack(1)
typedef struct {
UINT8 BootIndicator;
UINT8 StartHead;
UINT8 StartSector;
UINT8 StartTrack;
UINT8 OSIndicator;
UINT8 EndHead;
UINT8 EndSector;
UINT8 EndTrack;
UINT8 StartingLBA[4];
UINT8 SizeInLBA[4];
} MBR_PARTITION_RECORD;
#define EXTRACT_UINT32(D) (UINT32)(D[0] | (D[1] << 8) | (D[2] << 16) | (D[3] << 24))
#define MBR_SIGNATURE 0xaa55
#define MIN_MBR_DEVICE_SIZE 0x80000
#define MBR_ERRATA_PAD 0x40000 // 128 MB
#define MAX_MBR_PARTITIONS 4
typedef struct {
UINT8 BootStrapCode[440];
UINT8 UniqueMbrSignature[4];
UINT8 Unknown[2];
MBR_PARTITION_RECORD Partition[MAX_MBR_PARTITIONS];
UINT16 Signature;
} MASTER_BOOT_RECORD;
#pragma pack()
#endif
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