simulators/ethereum/engine: Beacon root pre-deploy address update (ethereum#839)

simulators/ethereum/engine: Update beacon root to latest spec.

Author: spencer-tb

simulators/ethereum/engine/config/cancun/constants.go

@@ -22,8 +22,8 @@ var (
 	BLOB_COMMITMENT_VERSION_KZG = byte(0x01)
 
 	// EIP 4788
-	HISTORY_STORAGE_ADDRESS  = common.HexToAddress("0x000000000000000000000000000000000000000b")
-	HISTORICAL_ROOTS_MODULUS = uint64(98304)
+	BEACON_ROOTS_ADDRESS  = common.HexToAddress("0xbEac00dDB15f3B6d645C48263dC93862413A222D")
+	HISTORY_BUFFER_LENGTH = uint64(98304)
 
 	// Test constants
 	DATAHASH_START_ADDRESS = big.NewInt(0x20000)

simulators/ethereum/engine/config/cancun/genesis.go

@@ -27,10 +27,10 @@ func ConfigGenesis(genesis *core.Genesis, forkTimestamp uint64) error {
 	}
 
 	// Add bytecode pre deploy to the EIP-4788 address.
-	genesis.Alloc[HISTORY_STORAGE_ADDRESS] = core.GenesisAccount{
+	genesis.Alloc[BEACON_ROOTS_ADDRESS] = core.GenesisAccount{
 		Balance: common.Big0,
 		Nonce:   1,
-		Code:    common.Hex2Bytes("3373fffffffffffffffffffffffffffffffffffffffe14604457602036146024575f5ffd5b620180005f350680545f35146037575f5ffd5b6201800001545f5260205ff35b42620180004206555f3562018000420662018000015500"),
+		Code:    common.Hex2Bytes("3373fffffffffffffffffffffffffffffffffffffffe14604457602036146024575f5ffd5b620180005f350680545f35146037575f5ffd5b6201800001545f5260205ff35b6201800042064281555f359062018000015500"),
 	}
 
 	return nil

simulators/ethereum/engine/suites/cancun/helpers.go

@@ -132,8 +132,8 @@ func VerifyTransactionFromNode(ctx context.Context, eth client.Eth, tx typ.Trans
 
 func BeaconRootStorageIndexes(timestamp uint64) (common.Hash, common.Hash) {
 	// Calculate keys
-	timestampReduced := timestamp % cancun.HISTORICAL_ROOTS_MODULUS
-	timestampExtended := timestampReduced + cancun.HISTORICAL_ROOTS_MODULUS
+	timestampReduced := timestamp % cancun.HISTORY_BUFFER_LENGTH
+	timestampExtended := timestampReduced + cancun.HISTORY_BUFFER_LENGTH
 
 	return common.BigToHash(new(big.Int).SetUint64(timestampReduced)), common.BigToHash(new(big.Int).SetUint64(timestampExtended))
 }

simulators/ethereum/engine/suites/cancun/steps.go

@@ -261,7 +261,7 @@ func VerifyBeaconRootStorage(ctx context.Context, testEngine *test.TestEngineCli
 	// Read the storage keys from the stateful precompile that stores the beacon roots and verify
 	// that the beacon root is the same as the one in the payload
 	blockNumber := new(big.Int).SetUint64(payload.Number)
-	precompileAddress := cancun.HISTORY_STORAGE_ADDRESS
+	precompileAddress := cancun.BEACON_ROOTS_ADDRESS
 
 	timestampKey, beaconRootKey := BeaconRootStorageIndexes(payload.Timestamp)