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Backport: Implement basic equivocations detection loop (#2375)

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* Implement basic equivocations detection loop (#2367)

* FinalityProofsBuf adjustments

- store a Vec<FinalityProof>
- transform prune `buf_limit` to Option

* FinalityProof: add target_header_hash()

* Target client: implement best_synced_header_hash()

* Implement first version of the equivocations detection loop

* Address code review comments

* Leftover

* polkadot-staging adjustments
This commit is contained in:
Serban Iorga
2023-08-23 19:31:17 +03:00
committed by Bastian Köcher
parent cc3bbc690b
commit 588508acd4
18 changed files with 572 additions and 79 deletions
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bridges/primitives/header-chain/src/justification/mod.rs
+5 -1
View File
@@ -97,7 +97,11 @@ impl<H: HeaderT> GrandpaJustification<H> {
}
}
impl<H: HeaderT> crate::FinalityProof<H::Number> for GrandpaJustification<H> {
impl<H: HeaderT> crate::FinalityProof<H::Hash, H::Number> for GrandpaJustification<H> {
fn target_header_hash(&self) -> H::Hash {
self.commit.target_hash
}
fn target_header_number(&self) -> H::Number {
self.commit.target_number
}
bridges/primitives/header-chain/src/lib.rs
+5 -2
View File
@@ -127,7 +127,10 @@ pub struct InitializationData<H: HeaderT> {
}
/// Abstract finality proof that is justifying block finality.
pub trait FinalityProof<Number>: Clone + Send + Sync + Debug {
pub trait FinalityProof<Hash, Number>: Clone + Send + Sync + Debug {
/// Return hash of header that this proof is generated for.
fn target_header_hash(&self) -> Hash;
/// Return number of header that this proof is generated for.
fn target_header_number(&self) -> Number;
}
@@ -209,7 +212,7 @@ impl<Header: HeaderT> TryFrom<StoredHeaderGrandpaInfo<Header>> for HeaderGrandpa
/// Helper trait for finding equivocations in finality proofs.
pub trait FindEquivocations<FinalityProof, FinalityVerificationContext, EquivocationProof> {
/// The type returned when encountering an error while looking for equivocations.
type Error;
type Error: Debug;
/// Find equivocations.
fn find_equivocations(