Enum domain::base::iana::opcode::Opcode

source ·
pub enum Opcode {
    Query,
    IQuery,
    Status,
    Notify,
    Update,
    Dso,
    Int(u8),
}
Expand description

DNS OpCodes.

The opcode specifies the kind of query to be performed.

The opcode and its initial set of values are defined in RFC 1035. Additional values have been defined over time. All currently assigned values can be found in the IANA registry. This type is complete as of 2019-12-23.

Variants§

§

Query

A standard query (0).

This query requests all records matching the name, class, and record type given in the query’s question section.

This value is defined in RFC 1035.

§

IQuery

An inverse query (IQUERY) (1, obsolete).

The idea behind inverse queries was to provide a single answer and ask the DNS for all the questions that would lead to this answer. This kind of query has always been optional, was never widely supported, and has therefore been declared obsolete.

This value was defined in RFC 1035 and obsoleted by RFC 3425.

§

Status

A server status request (2).

This value is defined in RFC 1035. The status request itself was defined as experimental and ‘to be defined’ in RFC 1034 and seems to never have been mentioned ever again.

§

Notify

A NOTIFY query (4).

NOTIFY queries allow primary servers to inform secondary servers when a zone has changed.

This value and the NOTIFY query are defined in RFC 1996.

§

Update

An UPDATE query (5).

The UPDATE query can be used to alter zone content managed by an authoritative server.

This value and the UPDATE query are defined in RFC 2136.

§

Dso

DNS Stateful operations (DSO) (6).

The DSO query can be used to manage stateful sessions between two DNS endpoints.

This value and the DOS query are defined in RFC 8490.

§

Int(u8)

A raw value given through its integer.

Implementations§

source§

impl Opcode

source

pub const fn from_int(value: u8) -> Self

Returns a value from its raw integer value.

source

pub const fn to_int(self) -> u8

Returns the raw integer value for a value.

source

pub fn from_mnemonic(m: &[u8]) -> Option<Self>

Returns a value from a well-defined mnemonic.

source

pub const fn to_mnemonic(self) -> Option<&'static [u8]>

Returns the mnemonic for this value if there is one.

This will also return a mnemonic if a well-defined variant is hidden in a Int variant.

source

pub fn parse<'a, Octs: AsRef<[u8]> + ?Sized>( parser: &mut Parser<'a, Octs>, ) -> Result<Self, ParseError>

source

pub const COMPOSE_LEN: u16 = 1u16

source

pub fn compose<Target: OctetsBuilder + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

source§

impl Opcode

source

pub fn from_bytes(bytes: &[u8]) -> Option<Self>

source§

impl Opcode

source

pub fn scan<S: Scanner>(scanner: &mut S) -> Result<Self, S::Error>

Trait Implementations§

source§

impl Clone for Opcode

source§

fn clone(&self) -> Opcode

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for Opcode

source§

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

Formats the value using the given formatter. Read more
source§

impl Display for Opcode

source§

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

Formats the value using the given formatter. Read more
source§

impl<'a> From<&'a Opcode> for u8

source§

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

Converts to this type from the input type.
source§

impl From<Opcode> for u8

source§

fn from(value: Opcode) -> Self

Converts to this type from the input type.
source§

impl From<u8> for Opcode

source§

fn from(value: u8) -> Self

Converts to this type from the input type.
source§

impl FromStr for Opcode

§

type Err = FromStrError

The associated error which can be returned from parsing.
source§

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more
source§

impl Hash for Opcode

source§

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

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

Feeds a slice of this type into the given Hasher. Read more
source§

impl Ord for Opcode

source§

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
source§

impl PartialEq<Opcode> for u8

source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl PartialEq<u8> for Opcode

source§

fn eq(&self, other: &u8) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl PartialEq for Opcode

source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl PartialOrd<Opcode> for u8

source§

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

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

impl PartialOrd<u8> for Opcode

source§

fn partial_cmp(&self, other: &u8) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

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

impl PartialOrd for Opcode

source§

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

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

impl Copy for Opcode

source§

impl Eq for Opcode

Auto Trait Implementations§

§

impl Freeze for Opcode

§

impl RefUnwindSafe for Opcode

§

impl Send for Opcode

§

impl Sync for Opcode

§

impl Unpin for Opcode

§

impl UnwindSafe for Opcode

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
source§

impl<T> CloneToUninit for T
where T: Copy,

source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<Source, Target> OctetsInto<Target> for Source
where Target: OctetsFrom<Source>,

§

type Error = <Target as OctetsFrom<Source>>::Error

source§

fn try_octets_into( self, ) -> Result<Target, <Source as OctetsInto<Target>>::Error>

Performs the conversion.
source§

fn octets_into(self) -> Target
where Self::Error: Into<Infallible>,

Performs an infallible conversion.
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T> ToString for T
where T: Display + ?Sized,

source§

default fn to_string(&self) -> String

Converts the given value to a String. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

source§

fn vzip(self) -> V

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more