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VerifyError

cumulus_primitives_spec_messaging::message

Enum VerifyError 

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pub enum VerifyError {
    Proof(ProofError),
    TreeProof,
    RootMismatch,
    UnexpectedBase,
    ExceedsBudget,
    VariantMismatch,
    PayloadTooLarge,
    MalformedResponse,
}
Expand description

Why verifying an off-chain response failed. RootMismatch is benign (retry under a fresher root); the rest indicate a malformed or forged response.

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Proof(ProofError)

An embedded MMR proof (inclusion or extension) did not verify.

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TreeProof

The StreamsRoot keyed-tree walk (tree_proof) did not resolve.

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RootMismatch

Everything verified, but the recomputed StreamsRoot is not the requested under. The peer served under a different root, stale or wrong. Not necessarily malicious.

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UnexpectedBase

The response’s base is not the requested start. Only surfaced by verify_messages.

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ExceedsBudget

The payloads total more than the request’s max_bytes, or max_bytes == 0 and the response carries any payload, even an empty one. Only surfaced by verify_messages.

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VariantMismatch

The response envelope variant does not match the request’s. Only surfaced by verify_exchange.

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PayloadTooLarge

A payload exceeded the protocol’s single-message bound (MAX_SPECULATIVE_MESSAGE_LEN).

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MalformedResponse

The response is structurally malformed independently of its proofs (e.g. a start_peaks set inconsistent with base, or a base + len leaf-counter overflow).

Trait Implementations§

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impl Clone for VerifyError

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fn clone(&self) -> VerifyError

Returns a duplicate 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 VerifyError

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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 From<ProofError> for VerifyError

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fn from(e: ProofError) -> Self

Converts to this type from the input type.
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impl PartialEq for VerifyError

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for VerifyError

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impl StructuralPartialEq for VerifyError

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