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babe: report equivocations (#6362)

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* slots: create primitives crate for consensus slots

* offences: add method to check if an offence is unknown

* babe: initial equivocation reporting implementation

* babe: organize imports

* babe: working equivocation reporting

* babe: add slot number to equivocation proof

* session: move duplicate traits to session primitives

* babe: move equivocation stuff to its own file

* offences: fix test

* session: don't have primitives depend on frame_support

* babe: use opaque type for key owner proof

* babe: cleanup client equivocation reporting

* babe: cleanup equivocation code in pallet

* babe: allow sending signed equivocation reports

* node: fix compilation

* fix test compilation

* babe: return bool on check_equivocation_proof

* babe: add test for equivocation reporting

* babe: add more tests

* babe: add test for validate unsigned

* babe: take slot number in generate_key_ownership_proof API

* babe: add benchmark for equivocation proof checking

* session: add benchmark for membership proof checking

* offences: fix babe benchmark

* babe: add weights based on benchmark results

* babe: adjust weights after benchmarking on reference hardware

* babe: reorder checks in check_and_report_equivocation
This commit is contained in:
André Silva
2020-07-04 11:18:13 +01:00
committed by GitHub
parent 61635e75c1
commit a9c21b8b84
34 changed files with 2031 additions and 275 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/bin/node/runtime/src/lib.rs
+40 -1
View File
@@ -270,6 +270,21 @@ impl pallet_babe::Trait for Runtime {
type EpochDuration = EpochDuration;
type ExpectedBlockTime = ExpectedBlockTime;
type EpochChangeTrigger = pallet_babe::ExternalTrigger;
type KeyOwnerProofSystem = Historical;
type KeyOwnerProof = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(
KeyTypeId,
pallet_babe::AuthorityId,
)>>::Proof;
type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(
KeyTypeId,
pallet_babe::AuthorityId,
)>>::IdentificationTuple;
type HandleEquivocation =
pallet_babe::EquivocationHandler<Self::KeyOwnerIdentification, Offences>;
}
parameter_types! {
@@ -808,7 +823,7 @@ construct_runtime!(
{
System: frame_system::{Module, Call, Config, Storage, Event<T>},
Utility: pallet_utility::{Module, Call, Event},
Babe: pallet_babe::{Module, Call, Storage, Config, Inherent(Timestamp)},
Babe: pallet_babe::{Module, Call, Storage, Config, Inherent(Timestamp), ValidateUnsigned},
Timestamp: pallet_timestamp::{Module, Call, Storage, Inherent},
Authorship: pallet_authorship::{Module, Call, Storage, Inherent},
Indices: pallet_indices::{Module, Call, Storage, Config<T>, Event<T>},
@@ -985,6 +1000,29 @@ impl_runtime_apis! {
fn current_epoch_start() -> sp_consensus_babe::SlotNumber {
Babe::current_epoch_start()
}
fn generate_key_ownership_proof(
_slot_number: sp_consensus_babe::SlotNumber,
authority_id: sp_consensus_babe::AuthorityId,
) -> Option<sp_consensus_babe::OpaqueKeyOwnershipProof> {
use codec::Encode;
Historical::prove((sp_consensus_babe::KEY_TYPE, authority_id))
.map(|p| p.encode())
.map(sp_consensus_babe::OpaqueKeyOwnershipProof::new)
}
fn submit_report_equivocation_unsigned_extrinsic(
equivocation_proof: sp_consensus_babe::EquivocationProof<<Block as BlockT>::Header>,
key_owner_proof: sp_consensus_babe::OpaqueKeyOwnershipProof,
) -> Option<()> {
let key_owner_proof = key_owner_proof.decode()?;
Babe::submit_unsigned_equivocation_report(
equivocation_proof,
key_owner_proof,
)
}
}
impl sp_authority_discovery::AuthorityDiscoveryApi<Block> for Runtime {
@@ -1099,6 +1137,7 @@ impl_runtime_apis! {
let mut batches = Vec::<BenchmarkBatch>::new();
let params = (&pallet, &benchmark, &lowest_range_values, &highest_range_values, &steps, repeat, &whitelist);
add_benchmark!(params, batches, b"babe", Babe);
add_benchmark!(params, batches, b"balances", Balances);
add_benchmark!(params, batches, b"collective", Council);
add_benchmark!(params, batches, b"democracy", Democracy);