Enum EdnsOption

#[non_exhaustive]
pub enum EdnsOption {
    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.

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 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<(), Error>

Formats the value using the given formatter.

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

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

Converts to this type from the input type.

impl Hash for EdnsOption

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

where __H: Hasher,

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<'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<Vec<u8>, <Vec<u8> as TryFrom<&'a EdnsOption>>::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<EdnsOption, <EdnsOption as TryFrom<(EdnsCode, &'a [u8])>>::Error>

Performs the conversion.

impl Eq for EdnsOption

impl StructuralPartialEq for EdnsOption