pub enum DoqErrorCode {
    NoError,
    InternalError,
    ProtocolError,
    RequestCancelled,
    ExcessiveLoad,
    ErrorReserved,
    Unknown(u32),
}
Available on crate features dns-over-quic and tokio-runtime only.
Expand description

DoQ Error Codes, draft-ietf-dprive-dnsoquic, Feb. 28, 2022

 5.3. DoQ Error Codes

The following error codes are defined for use when abruptly terminating streams, aborting reading of streams, or immediately closing connections:

DOQ_NO_ERROR (0x0):
    No error. This is used when the connection or stream needs to be closed, but there is no error to signal.

DOQ_INTERNAL_ERROR (0x1):
    The DoQ implementation encountered an internal error and is incapable of pursuing the transaction or the connection.

DOQ_PROTOCOL_ERROR (0x2):
    The DoQ implementation encountered an protocol error and is forcibly aborting the connection.

DOQ_REQUEST_CANCELLED (0x3):
    A DoQ client uses this to signal that it wants to cancel an outstanding transaction.

DOQ_EXCESSIVE_LOAD (0x4):
    A DoQ implementation uses this to signal when closing a connection due to excessive load.

DOQ_ERROR_RESERVED (0xd098ea5e):
    Alternative error code used for tests.

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NoError

No error. This is used when the connection or stream needs to be closed, but there is no error to signal.

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InternalError

The DoQ implementation encountered an internal error and is incapable of pursuing the transaction or the connection.

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ProtocolError

The DoQ implementation encountered an protocol error and is forcibly aborting the connection.

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RequestCancelled

A DoQ client uses this to signal that it wants to cancel an outstanding transaction.

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ExcessiveLoad

A DoQ implementation uses this to signal when closing a connection due to excessive load.

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ErrorReserved

Alternative error code used for tests.

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Unknown(u32)

Unknown Error code

Trait Implementations§

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impl Clone for DoqErrorCode

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fn clone(&self) -> DoqErrorCode

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl From<DoqErrorCode> for VarInt

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fn from(doq_error: DoqErrorCode) -> Self

Converts to this type from the input type.
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impl From<VarInt> for DoqErrorCode

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fn from(doq_error: VarInt) -> Self

Converts to this type from the input type.
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impl Copy for DoqErrorCode

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Gets the TypeId of self. Read more
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

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fn into(self) -> U

Calls U::from(self).

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type Owned = T

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

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

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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