Enum NdpMessage 

pub enum NdpMessage {
    RouterSolicitation {
        options: Vec<NdpOption>,
    },
    RouterAdvertisement(RouterAdvertisement),
    NeighborSolicitation {
        target: Ipv6Addr,
        options: Vec<NdpOption>,
    },
    NeighborAdvertisement {
        router: bool,
        solicited: bool,
        override_flag: bool,
        target: Ipv6Addr,
        options: Vec<NdpOption>,
    },
    Redirect {
        target: Ipv6Addr,
        destination: Ipv6Addr,
        options: Vec<NdpOption>,
    },
}

One of the five Neighbour Discovery messages, decoded.

Variants

RouterSolicitation

Fields

options: Vec<NdpOption>

RouterAdvertisement(RouterAdvertisement)

NeighborSolicitation

Fields

target: Ipv6Addr

options: Vec<NdpOption>

NeighborAdvertisement

Fields

router: bool

solicited: bool

override_flag: bool

target: Ipv6Addr

options: Vec<NdpOption>

Redirect

Fields

target: Ipv6Addr

A better first hop for destination, or destination itself when it is on-link.

destination: Ipv6Addr

options: Vec<NdpOption>

Implementations

impl NdpMessage

pub fn message_type(&self) -> u8

pub fn type_name(&self) -> &'static str

pub fn options(&self) -> &[NdpOption]

pub fn source_link_layer(&self) -> Option<[u8; 6]>

The Source Link-Layer Address option, if the sender included one.

pub fn target_link_layer(&self) -> Option<[u8; 6]>

The Target Link-Layer Address option, if the sender included one.

pub fn encode(&self, source: Ipv6Addr, destination: Ipv6Addr) -> Result<Vec<u8>>

Serialise, with a correct checksum over the pseudo-header for source -> destination.

Both addresses are required arguments rather than optional, because the checksum genuinely cannot be computed without them and an API that let a caller forget would produce packets every receiver drops.

pub fn encode_without_checksum(&self) -> Result<Vec<u8>>

Serialise with the checksum field left as zero.

Public because it is the honest thing to hand a raw ICMPv6 socket: RFC 3542 §3.1 makes the kernel compute and insert the checksum for IPPROTO_ICMPV6, so anything written there is overwritten. Also what the checksum tests build on.

pub fn decode(data: &[u8]) -> Result<Self>

Parse an ICMPv6 message that is expected to be one of the five NDP types.

The checksum is not checked here — see verify_checksum for why it cannot be, from the ICMPv6 bytes alone.

pub fn to_event_data(&self) -> Map<String, Value>

Everything the model is shown about a received message. Addresses as strings, flags as booleans, lifetimes as numbers of seconds — never octets.

Fields the message did not carry are omitted rather than null, so a script can test presence with a plain in.

Trait Implementations

impl Clone for NdpMessage

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NdpMessage

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

Formats the value using the given formatter.

impl Eq for NdpMessage

impl PartialEq for NdpMessage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NdpMessage