Struct SuperBlock 

pub struct SuperBlock {

    pub magic: u32,
    pub major_ver: u16,
    pub minor_ver: u16,
    pub log_sectorsize: u32,
    pub log_sectors_per_block: u32,
    pub log_blocksize: u32,
    pub log_blocks_per_seg: u32,
    pub segs_per_sec: u32,
    pub secs_per_zone: u32,
    pub checksum_offset: u32,
    pub block_count: u64,
    pub section_count: u32,
    pub segment_count: u32,
    pub segment_count_ckpt: u32,
    pub segment_count_sit: u32,
    pub segment_count_nat: u32,
    pub segment_count_ssa: u32,
    pub segment_count_main: u32,
    pub segment0_blkaddr: u32,
    pub cp_blkaddr: u32,
    pub sit_blkaddr: u32,
    pub nat_blkaddr: u32,
    pub ssa_blkaddr: u32,
    pub main_blkaddr: u32,
    pub root_ino: u32,
    pub node_ino: u32,
    pub meta_ino: u32,
    pub uuid: [u8; 16],
    pub volume_name: [u16; 512],
    pub extension_count: u32,
    pub extension_list: [[u8; 8]; 64],
    pub cp_payload: u32,
    pub kernel_version: [u8; 256],
    pub init_kernel_version: [u8; 256],
    pub feature: u32,
    pub encryption_level: u8,
    pub encryption_salt: [u8; 16],
    pub devices: [Device; 8],
    pub quota_file_ino: [u32; 3],
    pub hot_extension_count: u8,
    pub charset_encoding: u16,
    pub charset_encoding_flags: u16,
    pub stop_checkpoint_reason: [u8; 32],
    pub errors: [u8; 16],
    pub crc: u32,
    /* private fields */
}

Fields

magic: u32

major_ver: u16

minor_ver: u16

log_sectorsize: u32

log_sectors_per_block: u32

log_blocksize: u32

log_blocks_per_seg: u32

segs_per_sec: u32

secs_per_zone: u32

checksum_offset: u32

block_count: u64

section_count: u32

segment_count: u32

segment_count_ckpt: u32

segment_count_sit: u32

segment_count_nat: u32

segment_count_ssa: u32

segment_count_main: u32

segment0_blkaddr: u32

cp_blkaddr: u32

sit_blkaddr: u32

nat_blkaddr: u32

ssa_blkaddr: u32

main_blkaddr: u32

root_ino: u32

node_ino: u32

meta_ino: u32

uuid: [u8; 16]

volume_name: [u16; 512]

extension_count: u32

extension_list: [[u8; 8]; 64]

cp_payload: u32

kernel_version: [u8; 256]

init_kernel_version: [u8; 256]

feature: u32

encryption_level: u8

encryption_salt: [u8; 16]

devices: [Device; 8]

quota_file_ino: [u32; 3]

hot_extension_count: u8

charset_encoding: u16

charset_encoding_flags: u16

stop_checkpoint_reason: [u8; 32]

errors: [u8; 16]

crc: u32

Implementations

impl SuperBlock

pub async fn read_from_device( device: &dyn Device, offset: u64, ) -> Result<Self, Error>

Reads the superblock from an device/image.

pub fn get_volume_name(&self) -> Result<String, Error>

Gets the volume name as a string.

pub fn get_total_size(&self) -> u64

Gets the total size of the filesystem in bytes.

Trait Implementations

impl Clone for SuperBlock

fn clone(&self) -> SuperBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SuperBlock

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

Formats the value using the given formatter.

impl FromBytes for SuperBlock

where u32: FromBytes, u16: FromBytes, u64: FromBytes, [u8; 16]: FromBytes, [u16; 512]: FromBytes, [[u8; 8]; 64]: FromBytes, [u8; 256]: FromBytes, u8: FromBytes, [Device; 8]: FromBytes, [u32; 3]: FromBytes, [u8; 32]: FromBytes, [u8; 258]: FromBytes,

fn ref_from_bytes( source: &[u8], ) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>

where Self: KnownLayout + Immutable,

Interprets the given source as a &Self.

fn ref_from_prefix( source: &[u8], ) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>

where Self: KnownLayout + Immutable,

Interprets the prefix of the given source as a &Self without copying.

fn ref_from_suffix( source: &[u8], ) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>

where Self: Immutable + KnownLayout,

Interprets the suffix of the given bytes as a &Self.

fn mut_from_bytes( source: &mut [u8], ) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>

where Self: IntoBytes + KnownLayout,

Interprets the given source as a &mut Self.

fn mut_from_prefix( source: &mut [u8], ) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>

where Self: IntoBytes + KnownLayout,

Interprets the prefix of the given source as a &mut Self without copying.

fn mut_from_suffix( source: &mut [u8], ) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>

where Self: IntoBytes + KnownLayout,

Interprets the suffix of the given source as a &mut Self without copying.

fn ref_from_bytes_with_elems( source: &[u8], count: usize, ) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>

where Self: KnownLayout<PointerMetadata = usize> + Immutable,

Interprets the given source as a &Self with a DST length equal to count.

fn ref_from_prefix_with_elems( source: &[u8], count: usize, ) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>

where Self: KnownLayout<PointerMetadata = usize> + Immutable,

Interprets the prefix of the given source as a DST &Self with length equal to count.

fn ref_from_suffix_with_elems( source: &[u8], count: usize, ) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>

where Self: KnownLayout<PointerMetadata = usize> + Immutable,

Interprets the suffix of the given source as a DST &Self with length equal to count.

fn mut_from_bytes_with_elems( source: &mut [u8], count: usize, ) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>

where Self: IntoBytes + KnownLayout<PointerMetadata = usize> + Immutable,

Interprets the given source as a &mut Self with a DST length equal to count.

fn mut_from_prefix_with_elems( source: &mut [u8], count: usize, ) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>

where Self: IntoBytes + KnownLayout<PointerMetadata = usize>,

Interprets the prefix of the given source as a &mut Self with DST length equal to count.

fn mut_from_suffix_with_elems( source: &mut [u8], count: usize, ) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>

where Self: IntoBytes + KnownLayout<PointerMetadata = usize>,

Interprets the suffix of the given source as a &mut Self with DST length equal to count.

fn read_from_bytes(source: &[u8]) -> Result<Self, SizeError<&[u8], Self>>

where Self: Sized,

Reads a copy of Self from the given source.

fn read_from_prefix( source: &[u8], ) -> Result<(Self, &[u8]), SizeError<&[u8], Self>>

where Self: Sized,

Reads a copy of Self from the prefix of the given source.

fn read_from_suffix( source: &[u8], ) -> Result<(&[u8], Self), SizeError<&[u8], Self>>

where Self: Sized,

Reads a copy of Self from the suffix of the given source.

impl FromZeros for SuperBlock

where u32: FromZeros, u16: FromZeros, u64: FromZeros, [u8; 16]: FromZeros, [u16; 512]: FromZeros, [[u8; 8]; 64]: FromZeros, [u8; 256]: FromZeros, u8: FromZeros, [Device; 8]: FromZeros, [u32; 3]: FromZeros, [u8; 32]: FromZeros, [u8; 258]: FromZeros,

fn zero(&mut self)

Overwrites self with zeros.

fn new_zeroed() -> Self

where Self: Sized,

Creates an instance of Self from zeroed bytes.

impl IntoBytes for SuperBlock

where u32: IntoBytes, u16: IntoBytes, u64: IntoBytes, [u8; 16]: IntoBytes, [u16; 512]: IntoBytes, [[u8; 8]; 64]: IntoBytes, [u8; 256]: IntoBytes, u8: IntoBytes, [Device; 8]: IntoBytes, [u32; 3]: IntoBytes, [u8; 32]: IntoBytes, [u8; 258]: IntoBytes,

fn as_bytes(&self) -> &[u8]

where Self: Immutable,

Gets the bytes of this value.

fn as_mut_bytes(&mut self) -> &mut [u8]

where Self: FromBytes,

Gets the bytes of this value mutably.

fn write_to(&self, dst: &mut [u8]) -> Result<(), SizeError<&Self, &mut [u8]>>

where Self: Immutable,

Writes a copy of self to dst.

fn write_to_prefix( &self, dst: &mut [u8], ) -> Result<(), SizeError<&Self, &mut [u8]>>

where Self: Immutable,

Writes a copy of self to the prefix of dst.

fn write_to_suffix( &self, dst: &mut [u8], ) -> Result<(), SizeError<&Self, &mut [u8]>>

where Self: Immutable,

Writes a copy of self to the suffix of dst.

impl KnownLayout for SuperBlock

where u32: KnownLayout,

type PointerMetadata = <u32 as KnownLayout>::PointerMetadata

The type of metadata stored in a pointer to Self.

fn size_for_metadata(meta: Self::PointerMetadata) -> Option<usize>

Computes the size of an object of type Self with the given pointer metadata.

impl PartialEq for SuperBlock

fn eq(&self, other: &SuperBlock) -> 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 TryFromBytes for SuperBlock

where u32: TryFromBytes, u16: TryFromBytes, u64: TryFromBytes, [u8; 16]: TryFromBytes, [u16; 512]: TryFromBytes, [[u8; 8]; 64]: TryFromBytes, [u8; 256]: TryFromBytes, u8: TryFromBytes, [Device; 8]: TryFromBytes, [u32; 3]: TryFromBytes, [u8; 32]: TryFromBytes, [u8; 258]: TryFromBytes,

fn try_ref_from_bytes( source: &[u8], ) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout + Immutable,

Attempts to interpret the given source as a &Self.

fn try_ref_from_prefix( source: &[u8], ) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout + Immutable,

Attempts to interpret the prefix of the given source as a &Self.

fn try_ref_from_suffix( source: &[u8], ) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout + Immutable,

Attempts to interpret the suffix of the given source as a &Self.

fn try_mut_from_bytes( bytes: &mut [u8], ) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>

where Self: KnownLayout + IntoBytes,

Attempts to interpret the given source as a &mut Self without copying.

fn try_mut_from_prefix( source: &mut [u8], ) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>

where Self: KnownLayout + IntoBytes,

Attempts to interpret the prefix of the given source as a &mut Self.

fn try_mut_from_suffix( source: &mut [u8], ) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>

where Self: KnownLayout + IntoBytes,

Attempts to interpret the suffix of the given source as a &mut Self.

fn try_ref_from_bytes_with_elems( source: &[u8], count: usize, ) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout<PointerMetadata = usize> + Immutable,

Attempts to interpret the given source as a &Self with a DST length equal to count.

fn try_ref_from_prefix_with_elems( source: &[u8], count: usize, ) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout<PointerMetadata = usize> + Immutable,

Attempts to interpret the prefix of the given source as a &Self with a DST length equal to count.

fn try_ref_from_suffix_with_elems( source: &[u8], count: usize, ) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout<PointerMetadata = usize> + Immutable,

Attempts to interpret the suffix of the given source as a &Self with a DST length equal to count.

fn try_mut_from_bytes_with_elems( source: &mut [u8], count: usize, ) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>

where Self: KnownLayout<PointerMetadata = usize> + IntoBytes,

Attempts to interpret the given source as a &mut Self with a DST length equal to count.

fn try_mut_from_prefix_with_elems( source: &mut [u8], count: usize, ) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>

where Self: KnownLayout<PointerMetadata = usize> + IntoBytes,

Attempts to interpret the prefix of the given source as a &mut Self with a DST length equal to count.

fn try_mut_from_suffix_with_elems( source: &mut [u8], count: usize, ) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>

where Self: KnownLayout<PointerMetadata = usize> + IntoBytes,

Attempts to interpret the suffix of the given source as a &mut Self with a DST length equal to count.

fn try_read_from_bytes( source: &[u8], ) -> Result<Self, ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read the given source as a Self.

fn try_read_from_prefix( source: &[u8], ) -> Result<(Self, &[u8]), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read a Self from the prefix of the given source.

fn try_read_from_suffix( source: &[u8], ) -> Result<(&[u8], Self), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read a Self from the suffix of the given source.

impl Copy for SuperBlock

impl Immutable for SuperBlock

where u32: Immutable, u16: Immutable, u64: Immutable, [u8; 16]: Immutable, [u16; 512]: Immutable, [[u8; 8]; 64]: Immutable, [u8; 256]: Immutable, u8: Immutable, [Device; 8]: Immutable, [u32; 3]: Immutable, [u8; 32]: Immutable, [u8; 258]: Immutable,

impl StructuralPartialEq for SuperBlock