Enum EdnsOption

#[non_exhaustive]
pub enum EdnsOption {
    DAU(SupportedAlgorithms),
    DHU(SupportedAlgorithms),
    N3U(SupportedAlgorithms),
    Subnet(ClientSubnet),
    Unknown(u16, Vec<u8>),
}

options used to pass information about capabilities between client and server

note: Not all EdnsOptions are supported at this time.

https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-13

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

DAU(SupportedAlgorithms)

Available on crate feature dnssec only.

RFC 6975, DNSSEC Algorithm Understood

DHU(SupportedAlgorithms)

Available on crate feature dnssec only.

RFC 6975, DS Hash Understood

N3U(SupportedAlgorithms)

Available on crate feature dnssec only.

RFC 6975, NSEC3 Hash Understood

Subnet(ClientSubnet)

RFC 7871, Client Subnet, Optional

Unknown(u16, Vec<u8>)

Unknown, used to deal with unknown or unsupported codes

Implementations

impl EdnsOption

pub fn len(&self) -> u16

Returns the length in bytes of the EdnsOption

pub fn is_empty(&self) -> bool

Returns true if the length in bytes of the EdnsOption is 0

Trait Implementations

impl BinEncodable for EdnsOption

fn emit(&self, encoder: &mut BinEncoder<'_>) -> Result<(), ProtoError>

Write the type to the stream

fn to_bytes(&self) -> Result<Vec<u8>, ProtoError>

Returns the object in binary form

impl Clone for EdnsOption

fn clone(&self) -> EdnsOption

Returns a copy 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<'de> Deserialize<'de> for EdnsOption

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> From<&'a EdnsOption> for EdnsCode

fn from(value: &'a EdnsOption) -> Self

Converts to this type from the input type.

impl Hash for EdnsOption

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

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 PartialOrd for EdnsOption

fn partial_cmp(&self, other: &EdnsOption) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for EdnsOption

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> TryFrom<&'a EdnsOption> for Vec<u8>

type Error = ProtoError

The type returned in the event of a conversion error.

fn try_from(value: &'a EdnsOption) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<(EdnsCode, &'a [u8])> for EdnsOption

only the supported extensions are listed right now.

type Error = ProtoError

The type returned in the event of a conversion error.

fn try_from(value: (EdnsCode, &'a [u8])) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for EdnsOption

impl StructuralPartialEq for EdnsOption