Struct VolumeHeader 

pub struct VolumeHeader {
    pub block_size: u32,
    pub bytes_per_sector: u32,
    pub physical_volume_size: u64,
    pub metadata_block_numbers: [u64; 4],
    pub key_data: [u8; 16],
    pub physical_volume_identifier: [u8; 16],
}

The parsed physical volume header.

Fields

block_size: u32

CoreStorage block size in bytes (typically 4096); the multiplier that turns a block number into a byte offset.

bytes_per_sector: u32

Bytes per sector (typically 512); the AES-XTS unit for LV decryption.

physical_volume_size: u64

Physical volume size in bytes (header offset 64).

metadata_block_numbers: [u64; 4]

Metadata block numbers (header offset 104, 4 × u64). Multiply by block_size for a byte offset.

key_data: [u8; 16]

The 16-byte metadata XTS key1 (header offset 176, first 16 bytes of the 128-byte key data).

physical_volume_identifier: [u8; 16]

The physical volume identifier (header offset 304, on-disk byte order) — the metadata XTS key2.

Implementations

impl VolumeHeader

pub fn parse(data: &[u8]) -> Result<Self, FileVaultError>

Parse the 512-byte header from the start of a CoreStorage partition.

Errors

• FileVaultError::NotCoreStorage if the "CS" signature is absent.
• FileVaultError::UnsupportedEncryptionMethod if not AES-XTS-128.

Trait Implementations

impl Clone for VolumeHeader

fn clone(&self) -> VolumeHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VolumeHeader

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

Formats the value using the given formatter.