Save gateway address in storage

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs

@@ -488,9 +488,18 @@ impl pallet_utility::Config for Runtime {
 
 // Ethereum Bridge
 
+#[cfg(not(feature = "runtime-benchmarks"))]
+parameter_types! {
+	pub storage EthereumGatewayAddress: H160 = H160::zero();
+}
+
+#[cfg(feature = "runtime-benchmarks")]
+parameter_types! {
+	pub storage EthereumGatewayAddress: H160 = H160(hex_literal::hex!("EDa338E4dC46038493b885327842fD3E301CaB39"));
+}
+
 parameter_types! {
 	pub const Reward: u128 = 10;
-	pub const GatewayAddress: H160 = H160(hex_literal::hex!("EDa338E4dC46038493b885327842fD3E301CaB39"));
 	pub const CreateAssetCall: [u8;2] = [53, 0];
 	pub const CreateAssetDeposit: u128 = (UNITS / 10) + EXISTENTIAL_DEPOSIT;
 	pub const InboundQueuePalletInstance: u8 = snowbridge_rococo_common::INBOUND_QUEUE_MESSAGES_PALLET_INDEX;
@@ -517,7 +526,7 @@ impl snowbridge_inbound_queue::Config for Runtime {
 	#[cfg(feature = "runtime-benchmarks")]
 	type XcmSender = DoNothingRouter;
 	type ChannelLookup = EthereumSystem;
-	type GatewayAddress = GatewayAddress;
+	type GatewayAddress = EthereumGatewayAddress;
 	#[cfg(feature = "runtime-benchmarks")]
 	type Helper = Runtime;
 	type MessageConverter = MessageToXcm<

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/xcm_config.rs

@@ -26,6 +26,7 @@ use crate::{
 	},
 	bridge_to_bulletin_config::WithRococoBulletinMessagesInstance,
 	bridge_to_westend_config::WithBridgeHubWestendMessagesInstance,
+	EthereumGatewayAddress,
 };
 use bp_messages::LaneId;
 use bp_relayers::{PayRewardFromAccount, RewardsAccountOwner, RewardsAccountParams};
@@ -160,10 +161,11 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 		// Allow to change dedicated storage items (called by governance-like)
 		match call {
 			RuntimeCall::System(frame_system::Call::set_storage { items })
-			if items.iter().all(|(k, _)| {
-				k.eq(&DeliveryRewardInBalance::key()) |
-					k.eq(&RequiredStakeForStakeAndSlash::key())
-			}) =>
+				if items.iter().all(|(k, _)| {
+					k.eq(&DeliveryRewardInBalance::key()) |
+						k.eq(&RequiredStakeForStakeAndSlash::key()) |
+						k.eq(&EthereumGatewayAddress::key())
+				}) =>
 				return true,
 			_ => (),
 		};

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/tests/tests.rs

@@ -20,13 +20,14 @@ use bp_polkadot_core::Signature;
 use bridge_hub_rococo_runtime::{
 	bridge_common_config, bridge_to_bulletin_config, bridge_to_westend_config,
 	xcm_config::{RelayNetwork, TokenLocation, XcmConfig},
-	AllPalletsWithoutSystem, BridgeRejectObsoleteHeadersAndMessages, Executive, ExistentialDeposit,
-	ParachainSystem, PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, SessionKeys,
-	SignedExtra, TransactionPayment, UncheckedExtrinsic,
+	AllPalletsWithoutSystem, BridgeRejectObsoleteHeadersAndMessages, EthereumGatewayAddress,
+	Executive, ExistentialDeposit, ParachainSystem, PolkadotXcm, Runtime, RuntimeCall,
+	RuntimeEvent, SessionKeys, SignedExtra, TransactionPayment, UncheckedExtrinsic,
 };
 use codec::{Decode, Encode};
 use frame_support::{dispatch::GetDispatchInfo, parameter_types, traits::ConstU8};
 use parachains_common::{rococo::fee::WeightToFee, AccountId, AuraId, Balance};
+use sp_core::H160;
 use sp_keyring::AccountKeyring::Alice;
 use sp_runtime::{
 	generic::{Era, SignedPayload},
@@ -182,6 +183,21 @@ mod bridge_hub_westend_tests {
 		>(collator_session_keys(), bp_bridge_hub_rococo::BRIDGE_HUB_ROCOCO_PARACHAIN_ID)
 	}
 
+	#[test]
+	fn change_ethereum_gateway_by_governance_works() {
+		bridge_hub_test_utils::test_cases::change_storage_constant_by_governance_works::<
+			Runtime,
+			EthereumGatewayAddress,
+			H160,
+		>(
+			collator_session_keys(),
+			bp_bridge_hub_rococo::BRIDGE_HUB_ROCOCO_PARACHAIN_ID,
+			Box::new(|call| RuntimeCall::System(call).encode()),
+			|| (EthereumGatewayAddress::key().to_vec(), EthereumGatewayAddress::get()),
+			|_| H160::default(),
+		)
+	}
+
 	#[test]
 	fn change_delivery_reward_by_governance_works() {
 		bridge_hub_test_utils::test_cases::change_storage_constant_by_governance_works::<