fix: ensure EIP-4788 not supported with Parlia Engine (#2268)

consensus/parlia/parlia.go

@@ -605,18 +605,6 @@ func (p *Parlia) verifyHeader(chain consensus.ChainHeaderReader, header *types.H
 		}
 	}
 
-	if !cancun && header.ExcessBlobGas != nil {
-		return fmt.Errorf("invalid excessBlobGas: have %d, expected nil", header.ExcessBlobGas)
-	}
-	if !cancun && header.BlobGasUsed != nil {
-		return fmt.Errorf("invalid blobGasUsed: have %d, expected nil", header.BlobGasUsed)
-	}
-	if cancun {
-		if err := eip4844.VerifyEIP4844Header(parent, header); err != nil {
-			return err
-		}
-	}
-
 	// All basic checks passed, verify cascading fields
 	return p.verifyCascadingFields(chain, header, parents)
 }

core/chain_makers.go

@@ -456,7 +456,9 @@ func (cm *chainMaker) makeHeader(parent *types.Block, state *state.StateDB, engi
 		excessBlobGas := eip4844.CalcExcessBlobGas(parentExcessBlobGas, parentBlobGasUsed)
 		header.ExcessBlobGas = &excessBlobGas
 		header.BlobGasUsed = new(uint64)
-		header.ParentBeaconRoot = new(common.Hash)
+		if cm.config.Parlia == nil {
+			header.ParentBeaconRoot = new(common.Hash)
+		}
 	}
 	return header
 }

core/genesis.go

@@ -499,7 +499,10 @@ func (g *Genesis) ToBlock() *types.Block {
 			// EIP-4788: The parentBeaconBlockRoot of the genesis block is always
 			// the zero hash. This is because the genesis block does not have a parent
 			// by definition.
-			head.ParentBeaconRoot = new(common.Hash)
+			if conf.Parlia == nil {
+				head.ParentBeaconRoot = new(common.Hash)
+			}
+
 			// EIP-4844 fields
 			head.ExcessBlobGas = g.ExcessBlobGas
 			head.BlobGasUsed = g.BlobGasUsed

core/state_processor_test.go

@@ -419,7 +419,9 @@ func GenerateBadBlock(parent *types.Block, engine consensus.Engine, txs types.Tr
 		header.BlobGasUsed = &used
 
 		beaconRoot := common.HexToHash("0xbeac00")
-		header.ParentBeaconRoot = &beaconRoot
+		if config.Parlia == nil {
+			header.ParentBeaconRoot = &beaconRoot
+		}
 	}
 	// Assemble and return the final block for sealing
 	if config.IsShanghai(header.Number, header.Time) {

miner/worker.go

@@ -969,7 +969,9 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
 		}
 		header.BlobGasUsed = new(uint64)
 		header.ExcessBlobGas = &excessBlobGas
-		header.ParentBeaconRoot = genParams.beaconRoot
+		if w.chainConfig.Parlia == nil {
+			header.ParentBeaconRoot = genParams.beaconRoot
+		}
 	}
 	// Run the consensus preparation with the default or customized consensus engine.
 	if err := w.engine.Prepare(w.chain, header); err != nil {