Enum EdnsOption 

pub enum EdnsOption {
    NSID(Vec<u8>),
    DAU(Vec<u8>),
    DHU(Vec<u8>),
    N3U(Vec<u8>),
    ClientSubnet {
        family: u16,
        source_prefix: u8,
        scope_prefix: u8,
        address: Vec<u8>,
    },
    Cookie {
        client: Vec<u8>,
        server: Vec<u8>,
    },
    ExtendedDnsError {
        info_code: u16,
        extra_text: String,
    },
    Owner {
        version: u8,
        seq: u8,
        primary_mac: MacAddress,
    },
    Unknown {
        code: u16,
        data: Vec<u8>,
    },
}

EDNS0 option parsed from OPT record RDATA.

Variants

NSID(Vec<u8>)

NSID - Name Server Identifier (RFC 5001)

DAU(Vec<u8>)

DAU - DNSSEC Algorithm Understood (RFC 6975)

DHU(Vec<u8>)

DHU - DS Hash Understood (RFC 6975)

N3U(Vec<u8>)

N3U - NSEC3 Hash Understood (RFC 6975)

ClientSubnet

Client Subnet (RFC 7871)

Fields

family: u16

source_prefix: u8

scope_prefix: u8

address: Vec<u8>

Cookie

DNS Cookie (RFC 7873)

Fields

client: Vec<u8>

server: Vec<u8>

ExtendedDnsError

Extended DNS Error (RFC 8914)

Fields

info_code: u16

extra_text: String

Owner

Owner option (Apple mDNS)

Fields

version: u8

seq: u8

primary_mac: MacAddress

Unknown

Unknown/unsupported option

Fields

code: u16

data: Vec<u8>

Implementations

impl EdnsOption

pub fn parse(code: u16, data: &[u8]) -> Result<Self, FieldError>

Parse a single EDNS0 option from wire format. data contains the option data (after code and length).

pub fn code(&self) -> u16

Get the option code for this EDNS0 option.

pub fn build_data(&self) -> Vec<u8>

Serialize the option data (without the code and length header).

pub fn build(&self) -> Vec<u8>

Build the complete TLV (code + length + data).

pub fn parse_all(data: &[u8]) -> Result<Vec<Self>, FieldError>

Parse all EDNS0 options from the OPT record RDATA.

pub fn summary(&self) -> String

Summary string for display.

Trait Implementations

impl Clone for EdnsOption

fn clone(&self) -> EdnsOption

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EdnsOption

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

Formats the value using the given formatter.

impl PartialEq for EdnsOption

fn eq(&self, other: &EdnsOption) -> 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 StructuralPartialEq for EdnsOption