Struct GptHeader 

pub struct GptHeader {

    pub revision: u32,
    pub header_size: u32,
    pub header_crc32: u32,
    pub header_crc_valid: bool,
    pub my_lba: u64,
    pub alternate_lba: u64,
    pub first_usable_lba: u64,
    pub last_usable_lba: u64,
    pub disk_guid: Guid,
    pub partition_entry_lba: u64,
    pub num_partition_entries: u32,
    pub partition_entry_size: u32,
    pub partition_array_crc32: u32,
}

A parsed GPT header.

Fields

revision: u32

Header revision (e.g. 0x0001_0000 for v1.0).

header_size: u32

Header size in bytes (spec value: 92).

header_crc32: u32

The CRC-32 stored in the header.

header_crc_valid: bool

true when the stored CRC matches a recomputed CRC over the header.

my_lba: u64

LBA of this header (1 for primary; last LBA for backup).

alternate_lba: u64

LBA of the other (backup/primary) header.

first_usable_lba: u64

First LBA usable by partitions.

last_usable_lba: u64

Last LBA usable by partitions.

disk_guid: Guid

Disk GUID.

partition_entry_lba: u64

LBA where the partition entry array begins.

num_partition_entries: u32

Number of entries in the partition array.

partition_entry_size: u32

Size of each partition entry, in bytes (spec value: 128).

partition_array_crc32: u32

CRC-32 of the partition entry array.

Implementations

impl GptHeader

pub fn parse(sector: &[u8]) -> Result<GptHeader, Error>

Parse a GPT header from the start of sector.

Errors

Error::TooShort if sector is under 92 bytes; Error::BadSignature if it does not begin with "EFI PART".

Trait Implementations

impl Clone for GptHeader

fn clone(&self) -> GptHeader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GptHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for GptHeader

impl PartialEq for GptHeader

fn eq(&self, other: &GptHeader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for GptHeader