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Reject empty attestations

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This commit is contained in:
Paul Hauner
2019-11-21 11:15:47 +11:00
parent 64f3d819f7
commit 3bf0aa9908
1 changed files with 5 additions and 0 deletions
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5
beacon_node/beacon_chain/src/beacon_chain.rs
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@@ -74,6 +74,7 @@ pub enum BlockProcessingOutcome {
#[derive(Debug, PartialEq)]
pub enum AttestationProcessingOutcome {
Processed,
EmptyAggregationBitfield,
UnknownHeadBlock {
beacon_block_root: Hash256,
},
@@ -692,6 +693,10 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
metrics::inc_counter(&metrics::ATTESTATION_PROCESSING_REQUESTS);
let timer = metrics::start_timer(&metrics::ATTESTATION_PROCESSING_TIMES);
if attestation.aggregation_bits.num_set_bits() == 0 {
return Ok(AttestationProcessingOutcome::EmptyAggregationBitfield);
}
// From the store, load the attestation's "head block".
//
// An honest validator would have set this block to be the head of the chain (i.e., the