Struct IcmpDstUnreachable 

#[repr(C)]
pub struct IcmpDstUnreachable {
    pub _unused: [u8; 2],
    pub mtu: [u8; 2],
}

For ICMP Type 3 “Destination Unreachable” Message (RFC 792) with support for PMTUD (RFC 1191) Contains 2 unused bytes followed by a Next-Hop MTU field indicating the maximum transmission unit of the next-hop network on which fragmentation is required.

Fields

_unused: [u8; 2]

mtu: [u8; 2]

Implementations

impl IcmpDstUnreachable

pub fn mtu(&self) -> u16

Returns the Next-Hop MTU field from a Destination Unreachable message in host byte order. Used for Path MTU Discovery (RFC 1191).

Safety

Caller must ensure ICMP type is 3 (Destination Unreachable) before calling this function. Accessing the dst_unreachable field with other ICMP types may result in undefined behavior.

pub fn set_mtu(&mut self, mtu: u16)

Trait Implementations

impl Clone for IcmpDstUnreachable

fn clone(&self) -> IcmpDstUnreachable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IcmpDstUnreachable

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

Formats the value using the given formatter.

impl<'de, WincodeConfig: Config> SchemaRead<'de, WincodeConfig> for IcmpDstUnreachable

const TYPE_META: TypeMeta

Metadata about the type’s serialization.

type Dst = IcmpDstUnreachable

fn read( reader: impl Reader<'de>, dst: &mut MaybeUninit<Self::Dst>, ) -> ReadResult<()>

Read into dst from reader.

fn get(reader: impl Reader<'de>) -> Result<Self::Dst, ReadError>

Read Self::Dst from reader into a new Self::Dst.

impl<WincodeConfig: Config> SchemaWrite<WincodeConfig> for IcmpDstUnreachable

const TYPE_META: TypeMeta

Metadata about the type’s serialization.

type Src = IcmpDstUnreachable

fn size_of(src: &Self::Src) -> WriteResult<usize>

Get the serialized size of Self::Src.

fn write(writer: impl Writer, src: &Self::Src) -> WriteResult<()>

Write Self::Src to writer.

impl<WincodeConfig: Config> ZeroCopy<WincodeConfig> for IcmpDstUnreachable

where for<'_wincode_internal, '_wincode_internal> [u8; 2]: ZeroCopy<WincodeConfig>, for<'_wincode_internal> Assert<{ _ }>: IsTrue,

fn from_bytes<'de>(bytes: &'de [u8], config: C) -> Result<&'de Self, ReadError>

where Self: Sized + SchemaRead<'de, C, Dst = Self>,

Like crate::ZeroCopy::from_bytes, but allows the caller to provide a custom configuration.

fn from_bytes_mut<'de>( bytes: &'de mut [u8], config: C, ) -> Result<&'de mut Self, ReadError>

where Self: Sized + SchemaRead<'de, C, Dst = Self>,

Like crate::ZeroCopy::from_bytes_mut, but allows the caller to provide a custom configuration.

impl Copy for IcmpDstUnreachable