Struct Icmpv6Layer 

pub struct Icmpv6Layer {
    pub index: LayerIndex,
}

An ICMPv6 layer view.

Uses the “Lazy Zero-Copy View” pattern: holds only layer boundaries and reads fields directly from the buffer on demand.

Fields

index: LayerIndex

Implementations

impl Icmpv6Layer

pub fn new(index: LayerIndex) -> Self

Create a new ICMPv6 layer view.

pub const fn at_start() -> Self

Create a layer at offset 0.

pub fn icmpv6_type(&self, buf: &[u8]) -> Result<u8, FieldError>

Get the ICMPv6 type.

pub fn code(&self, buf: &[u8]) -> Result<u8, FieldError>

Get the ICMPv6 code.

pub fn checksum(&self, buf: &[u8]) -> Result<u16, FieldError>

Get the checksum.

pub fn id(&self, buf: &[u8]) -> Result<Option<u16>, FieldError>

Get the identifier field (for echo request/reply only).

Returns None if this ICMPv6 type doesn’t have an ID field.

pub fn seq(&self, buf: &[u8]) -> Result<Option<u16>, FieldError>

Get the sequence number field (for echo request/reply only).

Returns None if this ICMPv6 type doesn’t have a sequence field.

pub fn target_addr(&self, buf: &[u8]) -> Result<Option<Ipv6Addr>, FieldError>

Get the target address (for Neighbor Solicitation/Advertisement).

Returns None if this ICMPv6 type doesn’t have a target address.

pub fn mtu(&self, buf: &[u8]) -> Result<Option<u32>, FieldError>

Get the MTU (for Packet Too Big only).

Returns None if this is not a Packet Too Big message.

pub fn set_type(&self, buf: &mut [u8], value: u8) -> Result<(), FieldError>

Set the ICMPv6 type.

pub fn set_code(&self, buf: &mut [u8], value: u8) -> Result<(), FieldError>

Set the ICMPv6 code.

pub fn set_checksum(&self, buf: &mut [u8], value: u16) -> Result<(), FieldError>

Set the checksum.

pub fn set_id(&self, buf: &mut [u8], value: u16) -> Result<(), FieldError>

Set the identifier field (for echo request/reply).

pub fn set_seq(&self, buf: &mut [u8], value: u16) -> Result<(), FieldError>

Set the sequence number field.

pub fn get_field( &self, buf: &[u8], name: &str, ) -> Option<Result<FieldValue, FieldError>>

Get a field value by name.

pub fn set_field( &self, buf: &mut [u8], name: &str, value: FieldValue, ) -> Option<Result<(), FieldError>>

Set a field value by name.

pub fn field_names() -> &'static [&'static str]

Get the list of field names for this layer.

pub fn summary(&self, buf: &[u8]) -> String

Generate a human-readable summary string.

pub fn header_len(&self, _buf: &[u8]) -> usize

Get the ICMPv6 header length.

The base header is always 8 bytes. Type-specific fields (like target addresses for NDP) are counted as part of the “body” beyond the 8-byte header.

pub fn hashret(&self, buf: &[u8]) -> Vec<u8>

Compute hash for packet matching.

pub fn answers(&self, buf: &[u8], other: &Icmpv6Layer, other_buf: &[u8]) -> bool

Check if this packet answers another ICMPv6 packet.

Trait Implementations

impl Clone for Icmpv6Layer

fn clone(&self) -> Icmpv6Layer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Icmpv6Layer

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

Formats the value using the given formatter.

impl From<Icmpv6Layer> for LayerEnum

fn from(v: Icmpv6Layer) -> LayerEnum

Converts to this type from the input type.

impl Layer for Icmpv6Layer

fn kind(&self) -> LayerKind

Get the kind of this layer

fn summary(&self, data: &[u8]) -> String

Get a human-readable summary of this layer

fn header_len(&self, data: &[u8]) -> usize

Get the header length for this layer

fn hashret(&self, data: &[u8]) -> Vec<u8>

Compute a hash for packet matching.

fn answers(&self, data: &[u8], other: &Self, other_data: &[u8]) -> bool

Check if this packet answers another packet.

fn field_names(&self) -> &'static [&'static str]

Get the list of field names for this layer

fn extract_padding<'a>(&self, data: &'a [u8]) -> (&'a [u8], &'a [u8])

Extract padding from the packet.

impl LayerDispatch for Icmpv6Layer

fn dispatch_kind(&self) -> LayerKind

Get the kind of this layer.

fn dispatch_index(&self) -> &LayerIndex

Get the layer index (start/end offsets).

fn dispatch_summary(&self, buf: &[u8]) -> String

Get a human-readable summary.

fn dispatch_header_len(&self, buf: &[u8]) -> usize

Get the header length in bytes.

fn dispatch_hashret(&self, buf: &[u8]) -> Vec<u8>

Compute a hash for packet matching.

fn dispatch_field_names(&self) -> &'static [&'static str]

Get field names for this layer type.

fn dispatch_get_field( &self, buf: &[u8], name: &str, ) -> Option<Result<FieldValue, FieldError>>

Get a field value by name.

fn dispatch_set_field( &self, buf: &mut [u8], name: &str, value: FieldValue, ) -> Option<Result<(), FieldError>>

Set a field value by name.

fn dispatch_show_fields(&self, buf: &[u8]) -> Vec<(&'static str, String)>

Get show-fields output.

impl TryInto<Icmpv6Layer> for LayerEnum

type Error = &'static str

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Icmpv6Layer, <Self as TryInto<Icmpv6Layer>>::Error>

Performs the conversion.