a4091-software/legacy.h
2023-11-22 21:15:40 -08:00

77 lines
1.7 KiB
C

//
// Copyright 2022-2023 Stefan Reinauer & Chris Hooper
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
typedef uint64_t ULLONG;
typedef struct { /* RFC4122 */
union {
struct {
ULONG time_low;
UWORD time_mid;
UWORD time_high_and_version;
UBYTE clock_seq_high_and_reserved;
UBYTE clock_seq_low;
UBYTE node[6];
} UUID;
UBYTE raw[16];
} u;
} __attribute__((packed)) GUID;
struct mbr_partition {
UBYTE status;
UBYTE f_head;
UBYTE f_sect;
UBYTE f_cyl;
UBYTE type;
UBYTE l_head;
UBYTE l_sect;
UBYTE l_cyl;
ULONG f_lba;
ULONG num_sect;
} __attribute__((packed));
struct mbr {
UBYTE bootcode[424];
GUID boot_guid;
ULONG disk_id;
UBYTE magic[2];
struct mbr_partition part[4];
UBYTE sig[2];
} __attribute__((packed));
struct gpt {
UBYTE signature[8];
ULONG revision;
ULONG size;
ULONG header_crc32;
ULONG reserved_zero;
ULLONG my_lba;
ULLONG alternate_lba;
ULLONG first_usable_lba;
ULLONG last_usable_lba;
GUID disk_uuid;
ULLONG entries_lba;
ULONG number_of_entries;
ULONG size_of_entry;
ULONG entries_crc32;
} __attribute__((packed));
struct gpt_partition {
GUID partition_type;
GUID unique_partition;
ULLONG first_lba;
ULLONG last_lba;
ULLONG attribute_flags;
USHORT partition_name[36];
} __attribute__((packed));