Merge pull request #577 from node-real/bep-466

BEP-466: implement support of RequestsHash for parlia

consensus/parlia/parlia.go

@@ -579,6 +579,17 @@ func (p *Parlia) verifyHeader(chain consensus.ChainHeaderReader, header *types.H
 		}
 	}
 
+	prague := chain.Config().IsPrague(header.Time)
+	if !prague {
+		if header.RequestsHash != nil {
+			return fmt.Errorf("invalid RequestsHash, have %#x, expected nil", header.RequestsHash)
+		}
+	} else {
+		if header.RequestsHash == nil {
+			return errors.New("header has nil RequestsHash after Prague")
+		}
+	}
+
 	// All basic checks passed, verify cascading fields
 	return p.verifyCascadingFields(chain, header, parents)
 }

core/chain_makers.go

@@ -610,11 +610,17 @@ func MakeEmptyHeader(parent *types.Header, chainConfig *chain.Config, timestamp
 		excessBlobGas := misc.CalcExcessBlobGas(chainConfig, parent)
 		header.ExcessBlobGas = &excessBlobGas
 		header.BlobGasUsed = new(uint64)
-		if chainConfig.Parlia != nil {
-			header.WithdrawalsHash = &types.EmptyRootHash
-		}
-		if chainConfig.Parlia == nil || chainConfig.IsBohr(header.Number.Uint64(), header.Time) {
+		if chainConfig.Parlia == nil {
 			header.ParentBeaconBlockRoot = new(libcommon.Hash)
+		} else {
+			header.WithdrawalsHash = &types.EmptyRootHash
+
+			if chainConfig.IsBohr(header.Number.Uint64(), header.Time) {
+				header.ParentBeaconBlockRoot = new(libcommon.Hash)
+			}
+			if chainConfig.IsPrague(header.Time) {
+				header.RequestsHash = &types.EmptyRequestsHash
+			}
 		}
 	}