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block processing: v0.6.1 headers, randao, eth1 data

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This commit is contained in:
Michael Sproul
2019-05-20 12:42:02 +10:00
parent aa01808a00
commit 55537078a1
4 changed files with 23 additions and 20 deletions
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38
eth2/state_processing/src/per_block_processing.rs
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@@ -86,7 +86,7 @@ fn per_block_processing_signature_optional<T: EthSpec>(
verify_block_signature(&state, &block, &spec)?;
}
process_randao(&mut state, &block, &spec)?;
process_eth1_data(&mut state, &block.body.eth1_data)?;
process_eth1_data(&mut state, &block.body.eth1_data, spec)?;
process_proposer_slashings(&mut state, &block.body.proposer_slashings, spec)?;
process_attester_slashings(&mut state, &block.body.attester_slashings, spec)?;
process_attestations(&mut state, &block.body.attestations, spec)?;
@@ -99,7 +99,7 @@ fn per_block_processing_signature_optional<T: EthSpec>(
/// Processes the block header.
///
/// Spec v0.5.1
/// Spec v0.6.1
pub fn process_block_header<T: EthSpec>(
state: &mut BeaconState<T>,
block: &BeaconBlock,
@@ -119,12 +119,17 @@ pub fn process_block_header<T: EthSpec>(
state.latest_block_header = block.temporary_block_header(spec);
// Verify proposer is not slashed
let proposer_idx = state.get_beacon_proposer_index(block.slot, RelativeEpoch::Current, spec)?;
let proposer = &state.validator_registry[proposer_idx];
verify!(!proposer.slashed, Invalid::ProposerSlashed(proposer_idx));
Ok(())
}
/// Verifies the signature of a block.
///
/// Spec v0.5.1
/// Spec v0.6.1
pub fn verify_block_signature<T: EthSpec>(
state: &BeaconState<T>,
block: &BeaconBlock,
@@ -135,7 +140,7 @@ pub fn verify_block_signature<T: EthSpec>(
let domain = spec.get_domain(
block.slot.epoch(spec.slots_per_epoch),
Domain::BeaconBlock,
Domain::BeaconProposer,
&state.fork,
);
@@ -152,7 +157,7 @@ pub fn verify_block_signature<T: EthSpec>(
/// Verifies the `randao_reveal` against the block's proposer pubkey and updates
/// `state.latest_randao_mixes`.
///
/// Spec v0.5.1
/// Spec v0.6.1
pub fn process_randao<T: EthSpec>(
state: &mut BeaconState<T>,
block: &BeaconBlock,
@@ -176,32 +181,29 @@ pub fn process_randao<T: EthSpec>(
);
// Update the current epoch RANDAO mix.
state.update_randao_mix(state.current_epoch(), &block.body.randao_reveal, spec)?;
state.update_randao_mix(state.current_epoch(), &block.body.randao_reveal)?;
Ok(())
}
/// Update the `state.eth1_data_votes` based upon the `eth1_data` provided.
///
/// Spec v0.5.1
/// Spec v0.6.1
pub fn process_eth1_data<T: EthSpec>(
state: &mut BeaconState<T>,
eth1_data: &Eth1Data,
spec: &ChainSpec,
) -> Result<(), Error> {
// Attempt to find a `Eth1DataVote` with matching `Eth1Data`.
let matching_eth1_vote_index = state
state.eth1_data_votes.push(eth1_data.clone());
let num_votes = state
.eth1_data_votes
.iter()
.position(|vote| vote.eth1_data == *eth1_data);
.filter(|vote| *vote == eth1_data)
.count() as u64;
// If a vote exists, increment it's `vote_count`. Otherwise, create a new `Eth1DataVote`.
if let Some(index) = matching_eth1_vote_index {
state.eth1_data_votes[index].vote_count += 1;
} else {
state.eth1_data_votes.push(Eth1DataVote {
eth1_data: eth1_data.clone(),
vote_count: 1,
});
if num_votes * 2 > spec.slots_per_eth1_voting_period {
state.latest_eth1_data = eth1_data.clone();
}
Ok(())