Struct dominion::header::Flags

source · [−]

pub struct Flags {
    pub qr: QueryResponse,
    pub opcode: OpCode,
    pub aa: AuthoritativeAnswer,
    pub tc: TrunCation,
    pub rd: RecursionDesired,
    pub ra: RecursionAvailable,
    pub z: Zero,
    pub ad: AuthenticData,
    pub cd: CheckingDisabled,
    pub rcode: ResponseCode,
}

Expand description

DNS Flags

    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |QR|   Opcode  |AA|TC|RD|RA| Z|AD|CD|   RCODE   |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
QR: Query (0) or Response (1)
OPCODE: Standard query (0), Inverse query (1), Server status query (2), Notify (4), Update (5), DSO (6)
AA: Authoritative Answer
TC: TrunCation
RD: Recursion Desired
RA: Recursion Available
Z: Zero (reserved)
AD: Authentic data (for DNSSEC)
AD: Checking disabled (for DNSSEC)
RCODE: Response code NOERROR (0), FORMERR (1), SERVFAIL (2), NXDOMAIN (3), NOTIMP (4), REFUSED (5)

Fields

qr: QueryResponse

Query (0) or Response (1)

opcode: OpCode

Standard query (0), Inverse query (1), Server status query (2), Notify (4), Update (5), DSO (6)

aa: AuthoritativeAnswer

The answer is authoritative.

tc: TrunCation

The packet has been truncated.

rd: RecursionDesired

The client desires recursion.

ra: RecursionAvailable

The server has recursion availbale.

z: Zero

Reserved (has to be 0).

ad: AuthenticData

Authentic data (for DNSSEC)

cd: CheckingDisabled

Checking disabled (for DNSSEC)

rcode: ResponseCode

Response code NOERROR (0), FORMERR (1), SERVFAIL (2), NXDOMAIN (3), NOTIMP (4), REFUSED (5)

Trait Implementations

impl Clone for Flags

fn clone(&self) -> Flags

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

impl Debug for Flags

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

Formats the value using the given formatter. Read more

impl PartialEq<Flags> for Flags

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

impl TryFrom<u16> for Flags

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(n: u16) -> Result<Flags, <Flags as TryFrom<u16>>::Error>

Performs the conversion.

impl Copy for Flags

impl Eq for Flags

impl StructuralEq for Flags

impl StructuralPartialEq for Flags

Auto Trait Implementations

impl RefUnwindSafe for Flags

impl Send for Flags

impl Sync for Flags

impl Unpin for Flags

impl UnwindSafe for Flags

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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.

const: unstable · source

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

Performs the conversion.