Enum tor_hsclient::FailedAttemptError

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#[non_exhaustive]
pub enum FailedAttemptError {
    UnusableIntro {
        error: InvalidTarget,
        intro_index: IntroPtIndex,
    },
    RendezvousCircuitObtain {
        error: Error,
    },
    RendezvousEstablishTimeout {
        rend_pt: Redacted<RelayIds>,
    },
    RendezvousEstablish {
        error: Error,
        rend_pt: Redacted<RelayIds>,
    },
    IntroductionCircuitObtain {
        error: Error,
        intro_index: IntroPtIndex,
    },
    IntroductionExchange {
        error: Error,
        intro_index: IntroPtIndex,
    },
    IntroductionFailed {
        status: IntroduceAckStatus,
        intro_index: IntroPtIndex,
    },
    IntroductionTimeout {
        intro_index: IntroPtIndex,
    },
    RendezvousCompletionTimeout {
        intro_index: IntroPtIndex,
        rend_pt: Redacted<RelayIds>,
    },
    RendezvousCompletionCircuitError {
        error: Error,
        intro_index: IntroPtIndex,
        rend_pt: Redacted<RelayIds>,
    },
    RendezvousCompletionHandshake {
        error: Error,
        intro_index: IntroPtIndex,
        rend_pt: Redacted<RelayIds>,
    },
    Bug(Bug),
}
Expand description

Error that occurred making one attempt to connect to a hidden service using an IP and RP

Variants (Non-exhaustive)§

This enum is marked as 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.
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UnusableIntro

Introduction point unusable because it couldn’t be used as a circuit target

Fields

§error: InvalidTarget

Why it’s not use able

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

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RendezvousCircuitObtain

Failed to obtain any circuit to use as a rendezvous circuit

Fields

§error: Error

Why it’s not use able

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RendezvousEstablishTimeout

Creating a rendezvous circuit and rendezvous point took too long

Fields

§rend_pt: Redacted<RelayIds>

Which relay did we choose for rendezvous point

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RendezvousEstablish

Failed to establish rendezvous point

Fields

§error: Error

What happened

§rend_pt: Redacted<RelayIds>

Which relay did we choose for rendezvous point

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IntroductionCircuitObtain

Failed to obtain circuit to introduction point

Fields

§error: Error

What happened

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

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IntroductionExchange

Introduction exchange (with the introduction point) failed

Fields

§error: Error

What happened

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

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IntroductionFailed

Introduction point reported error in its INTRODUCE_ACK

Fields

§status: IntroduceAckStatus

The status code provided by the introduction point

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

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IntroductionTimeout

Communication with introduction point {intro_index} took too long

This might mean it took too long to establish a circuit to the IPT, or that the INTRODUCE exchange took too long.

Fields

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

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RendezvousCompletionTimeout

It took too long for the rendezvous to be completed

This might be the fault of almost anyone. All we know is that we got a successful INTRODUCE_ACK but the RENDEZVOUS2 never arrived.

Fields

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

§rend_pt: Redacted<RelayIds>

Which relay did we choose for rendezvous point

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RendezvousCompletionCircuitError

Error on rendezvous circuit when expecting rendezvous completion (RENDEZVOUS2)

Fields

§error: Error

What happened

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

§rend_pt: Redacted<RelayIds>

Which relay did we choose for rendezvous point

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RendezvousCompletionHandshake

Error processing rendezvous completion (RENDEZVOUS2)

This is might be the fault of the hidden service or the rendezvous point.

Fields

§error: Error

What happened

§intro_index: IntroPtIndex

The index of the IPT in the list of IPTs in the descriptor

§rend_pt: Redacted<RelayIds>

Which relay did we choose for rendezvous point

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Bug(Bug)

Internal error

Trait Implementations§

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impl AsRef<dyn Error> for FailedAttemptError

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fn as_ref(&self) -> &(dyn Error + 'static)

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for FailedAttemptError

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fn clone(&self) -> FailedAttemptError

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 Debug for FailedAttemptError

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

Formats the value using the given formatter. Read more
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impl Display for FailedAttemptError

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

Formats the value using the given formatter. Read more
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impl Error for FailedAttemptError

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fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
Read more
1.0.0 · source§

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type based access to context intended for error reports. Read more
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impl From<Bug> for FailedAttemptError

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fn from(source: Bug) -> Self

Converts to this type from the input type.
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impl HasKind for FailedAttemptError

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fn kind(&self) -> ErrorKind

Return the kind of this error.
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impl HasRetryTime for FailedAttemptError

When an attempt like this should be retried.

For error variants with an introduction point index (FailedAttemptError::intro_index returns Some) that’s when we might retry with that introduction point.

For error variants with a rendezvous point, that’s when we might retry with that rendezvous point.

For variants with both, we don’t know which of the introduction point or rendezvous point is implicated. Retrying earlier with one different relay out of the two relays would be reasonable, as would delaying retrying with either of the same relays.

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fn retry_time(&self) -> RetryTime

Return the time when the operation that gave this error can be retried. Read more
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fn abs_retry_time<F>(&self, now: Instant, choose_delay: F) -> AbsRetryTime
where F: FnOnce() -> Duration, Self: Sized,

Return an absolute retry when the operation that gave this error can be retried. Read more

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