Adds Snowbridge to Rococo runtime (#2522)

# Description

Adds Snowbridge to the Rococo bridge hub runtime. Includes config
changes required in Rococo asset hub.

---------

Co-authored-by: Alistair Singh <alistair.singh7@gmail.com>
Co-authored-by: ron <yrong1997@gmail.com>
Co-authored-by: Vincent Geddes <vincent.geddes@hey.com>
Co-authored-by: claravanstaden <Cats 4 life!>

cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml

@@ -90,6 +90,8 @@ bp-asset-hub-rococo = { path = "../../../../../bridges/primitives/chain-asset-hu
 bp-asset-hub-westend = { path = "../../../../../bridges/primitives/chain-asset-hub-westend", default-features = false }
 bp-bridge-hub-rococo = { path = "../../../../../bridges/primitives/chain-bridge-hub-rococo", default-features = false }
 bp-bridge-hub-westend = { path = "../../../../../bridges/primitives/chain-bridge-hub-westend", default-features = false }
+snowbridge-router-primitives = { path = "../../../../../bridges/snowbridge/parachain/primitives/router", default-features = false }
+snowbridge-rococo-common = { path = "../../../../../bridges/snowbridge/parachain/runtime/rococo-common", default-features = false }
 
 [dev-dependencies]
 asset-test-utils = { path = "../test-utils" }
@@ -137,6 +139,8 @@ runtime-benchmarks = [
 	"parachains-common/runtime-benchmarks",
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-runtime-common/runtime-benchmarks",
+	"snowbridge-rococo-common/runtime-benchmarks",
+	"snowbridge-router-primitives/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
@@ -227,6 +231,8 @@ std = [
 	"primitive-types/std",
 	"rococo-runtime-constants/std",
 	"scale-info/std",
+	"snowbridge-rococo-common/std",
+	"snowbridge-router-primitives/std",
 	"sp-api/std",
 	"sp-block-builder/std",
 	"sp-consensus-aura/std",

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs

@@ -30,11 +30,12 @@ pub mod xcm_config;
 use assets_common::{
 	foreign_creators::ForeignCreators,
 	local_and_foreign_assets::{LocalFromLeft, TargetFromLeft},
-	matching::FromSiblingParachain,
+	matching::{FromNetwork, FromSiblingParachain},
 	AssetIdForTrustBackedAssetsConvert, MultiLocationForAssetId,
 };
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
 use cumulus_primitives_core::AggregateMessageOrigin;
+use snowbridge_rococo_common::EthereumNetwork;
 use sp_api::impl_runtime_apis;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
@@ -379,7 +380,10 @@ impl pallet_assets::Config<ForeignAssetsInstance> for Runtime {
 	type AssetIdParameter = MultiLocationForAssetId;
 	type Currency = Balances;
 	type CreateOrigin = ForeignCreators<
-		(FromSiblingParachain<parachain_info::Pallet<Runtime>>,),
+		(
+			FromSiblingParachain<parachain_info::Pallet<Runtime>>,
+			FromNetwork<xcm_config::UniversalLocation, EthereumNetwork>,
+		),
 		ForeignCreatorsSovereignAccountOf,
 		AccountId,
 	>;
@@ -913,7 +917,6 @@ construct_runtime!(
 
 		// Bridge utilities.
 		ToWestendXcmRouter: pallet_xcm_bridge_hub_router::<Instance3>::{Pallet, Storage, Call} = 45,
-
 		// The main stage.
 		Assets: pallet_assets::<Instance1>::{Pallet, Call, Storage, Event<T>} = 50,
 		Uniques: pallet_uniques::{Pallet, Call, Storage, Event<T>} = 51,

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/xcm_config.rs

@@ -21,7 +21,7 @@ use super::{
 };
 use assets_common::{
 	local_and_foreign_assets::MatchesLocalAndForeignAssetsMultiLocation,
-	matching::{FromSiblingParachain, IsForeignConcreteAsset},
+	matching::{FromNetwork, FromSiblingParachain, IsForeignConcreteAsset},
 };
 use frame_support::{
 	match_types, parameter_types,
@@ -39,6 +39,8 @@ use parachains_common::{
 };
 use polkadot_parachain_primitives::primitives::Sibling;
 use polkadot_runtime_common::xcm_sender::ExponentialPrice;
+use snowbridge_rococo_common::EthereumNetwork;
+use snowbridge_router_primitives::inbound::GlobalConsensusEthereumConvertsFor;
 use sp_runtime::traits::{AccountIdConversion, ConvertInto};
 use xcm::latest::prelude::*;
 #[allow(deprecated)]
@@ -50,9 +52,10 @@ use xcm_builder::{
 	GlobalConsensusParachainConvertsFor, HashedDescription, IsConcrete, LocalMint,
 	NetworkExportTableItem, NoChecking, ParentAsSuperuser, ParentIsPreset, RelayChainAsNative,
 	SiblingParachainAsNative, SiblingParachainConvertsVia, SignedAccountId32AsNative,
-	SignedToAccountId32, SovereignSignedViaLocation, StartsWith, StartsWithExplicitGlobalConsensus,
-	TakeWeightCredit, TrailingSetTopicAsId, UsingComponents, WeightInfoBounds, WithComputedOrigin,
-	WithUniqueTopic, XcmFeeManagerFromComponents, XcmFeeToAccount,
+	SignedToAccountId32, SovereignPaidRemoteExporter, SovereignSignedViaLocation, StartsWith,
+	StartsWithExplicitGlobalConsensus, TakeWeightCredit, TrailingSetTopicAsId, UsingComponents,
+	WeightInfoBounds, WithComputedOrigin, WithUniqueTopic, XcmFeeManagerFromComponents,
+	XcmFeeToAccount,
 };
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
@@ -90,6 +93,9 @@ pub type LocationToAccountId = (
 	// Different global consensus parachain sovereign account.
 	// (Used for over-bridge transfers and reserve processing)
 	GlobalConsensusParachainConvertsFor<UniversalLocation, AccountId>,
+	// Ethereum contract sovereign account.
+	// (Used to get convert ethereum contract locations to sovereign account)
+	GlobalConsensusEthereumConvertsFor<AccountId>,
 );
 
 /// Means for transacting the native currency on this chain.
@@ -259,10 +265,11 @@ 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(&bridging::XcmBridgeHubRouterByteFee::key())) ||
-					items
-						.iter()
-						.all(|(k, _)| k.eq(&bridging::XcmBridgeHubRouterBaseFee::key())) =>
+				if items.iter().all(|(k, _)| {
+					k.eq(&bridging::XcmBridgeHubRouterByteFee::key()) |
+						k.eq(&bridging::XcmBridgeHubRouterBaseFee::key()) |
+						k.eq(&bridging::to_ethereum::BridgeHubEthereumBaseFee::key())
+				}) =>
 				return true,
 			_ => (),
 		};
@@ -534,7 +541,10 @@ impl xcm_executor::Config for XcmConfig {
 	// as reserve locations (we trust the Bridge Hub to relay the message that a reserve is being
 	// held). Asset Hub may _act_ as a reserve location for ROC and assets created
 	// under `pallet-assets`. Users must use teleport where allowed (e.g. ROC with the Relay Chain).
-	type IsReserve = (bridging::to_westend::IsTrustedBridgedReserveLocationForConcreteAsset,);
+	type IsReserve = (
+		bridging::to_westend::IsTrustedBridgedReserveLocationForConcreteAsset,
+		bridging::to_ethereum::IsTrustedBridgedReserveLocationForForeignAsset,
+	);
 	type IsTeleporter = TrustedTeleporters;
 	type UniversalLocation = UniversalLocation;
 	type Barrier = Barrier;
@@ -585,7 +595,8 @@ impl xcm_executor::Config for XcmConfig {
 		XcmFeeToAccount<Self::AssetTransactor, AccountId, TreasuryAccount>,
 	>;
 	type MessageExporter = ();
-	type UniversalAliases = (bridging::to_westend::UniversalAliases,);
+	type UniversalAliases =
+		(bridging::to_westend::UniversalAliases, bridging::to_ethereum::UniversalAliases);
 	type CallDispatcher = WithOriginFilter<SafeCallFilter>;
 	type SafeCallFilter = SafeCallFilter;
 	type Aliasers = Nothing;
@@ -613,6 +624,9 @@ pub type XcmRouter = WithUniqueTopic<(
 	// Router which wraps and sends xcm to BridgeHub to be delivered to the Westend
 	// GlobalConsensus
 	ToWestendXcmRouter,
+	// Router which wraps and sends xcm to BridgeHub to be delivered to the Ethereum
+	// GlobalConsensus
+	SovereignPaidRemoteExporter<bridging::EthereumNetworkExportTable, XcmpQueue, UniversalLocation>,
 )>;
 
 impl pallet_xcm::Config for Runtime {
@@ -658,6 +672,7 @@ pub type ForeignCreatorsSovereignAccountOf = (
 	SiblingParachainConvertsVia<Sibling, AccountId>,
 	AccountId32Aliases<RelayNetwork, AccountId>,
 	ParentIsPreset<AccountId>,
+	GlobalConsensusEthereumConvertsFor<AccountId>,
 );
 
 /// Simple conversion of `u32` into an `AssetId` for use in benchmarking.
@@ -706,10 +721,17 @@ pub mod bridging {
 			sp_std::vec::Vec::new().into_iter()
 			.chain(to_westend::BridgeTable::get())
 			.collect();
+
+		pub EthereumBridgeTable: sp_std::vec::Vec<NetworkExportTableItem> =
+			sp_std::vec::Vec::new().into_iter()
+			.chain(to_ethereum::BridgeTable::get())
+			.collect();
 	}
 
 	pub type NetworkExportTable = xcm_builder::NetworkExportTable<BridgeTable>;
 
+	pub type EthereumNetworkExportTable = xcm_builder::NetworkExportTable<EthereumBridgeTable>;
+
 	pub mod to_westend {
 		use super::*;
 
@@ -786,6 +808,56 @@ pub mod bridging {
 		}
 	}
 
+	pub mod to_ethereum {
+		use super::*;
+
+		parameter_types! {
+			/// User fee for ERC20 token transfer back to Ethereum.
+			/// (initially was calculated by test `OutboundQueue::calculate_fees` - ETH/ROC 1/400 and fee_per_gas 20 GWEI = 2200698000000 + *25%)
+			/// Needs to be more than fee calculated from DefaultFeeConfig FeeConfigRecord in snowbridge:parachain/pallets/outbound-queue/src/lib.rs
+			/// Polkadot uses 10 decimals, Kusama and Rococo 12 decimals.
+			pub const DefaultBridgeHubEthereumBaseFee: Balance = 2_750_872_500_000;
+			pub storage BridgeHubEthereumBaseFee: Balance = DefaultBridgeHubEthereumBaseFee::get();
+			pub SiblingBridgeHubWithEthereumInboundQueueInstance: MultiLocation = MultiLocation::new(
+				1,
+				X2(
+					Parachain(SiblingBridgeHubParaId::get()),
+					PalletInstance(snowbridge_rococo_common::INBOUND_QUEUE_MESSAGES_PALLET_INDEX)
+				)
+			);
+
+			/// Set up exporters configuration.
+			/// `Option<MultiAsset>` represents static "base fee" which is used for total delivery fee calculation.
+			pub BridgeTable: sp_std::vec::Vec<NetworkExportTableItem> = sp_std::vec![
+				NetworkExportTableItem::new(
+					EthereumNetwork::get(),
+					Some(sp_std::vec![Junctions::Here]),
+					SiblingBridgeHub::get(),
+					Some((
+						XcmBridgeHubRouterFeeAssetId::get(),
+						BridgeHubEthereumBaseFee::get(),
+					).into())
+				),
+			];
+
+			/// Universal aliases
+			pub UniversalAliases: BTreeSet<(MultiLocation, Junction)> = BTreeSet::from_iter(
+				sp_std::vec![
+					(SiblingBridgeHubWithEthereumInboundQueueInstance::get(), GlobalConsensus(EthereumNetwork::get())),
+				]
+			);
+		}
+
+		pub type IsTrustedBridgedReserveLocationForForeignAsset =
+			matching::IsForeignConcreteAsset<FromNetwork<UniversalLocation, EthereumNetwork>>;
+
+		impl Contains<(MultiLocation, Junction)> for UniversalAliases {
+			fn contains(alias: &(MultiLocation, Junction)) -> bool {
+				UniversalAliases::get().contains(alias)
+			}
+		}
+	}
+
 	/// Benchmarks helper for bridging configuration.
 	#[cfg(feature = "runtime-benchmarks")]
 	pub struct BridgingBenchmarksHelper;

cumulus/parachains/runtimes/assets/asset-hub-rococo/tests/tests.rs

@@ -865,3 +865,55 @@ fn change_xcm_bridge_hub_router_byte_fee_by_governance_works() {
 		},
 	)
 }
+
+#[test]
+fn change_xcm_bridge_hub_router_base_fee_by_governance_works() {
+	asset_test_utils::test_cases::change_storage_constant_by_governance_works::<
+		Runtime,
+		bridging::XcmBridgeHubRouterBaseFee,
+		Balance,
+	>(
+		collator_session_keys(),
+		1000,
+		Box::new(|call| RuntimeCall::System(call).encode()),
+		|| {
+			(
+				bridging::XcmBridgeHubRouterBaseFee::key().to_vec(),
+				bridging::XcmBridgeHubRouterBaseFee::get(),
+			)
+		},
+		|old_value| {
+			if let Some(new_value) = old_value.checked_add(1) {
+				new_value
+			} else {
+				old_value.checked_sub(1).unwrap()
+			}
+		},
+	)
+}
+
+#[test]
+fn change_xcm_bridge_hub_ethereum_base_fee_by_governance_works() {
+	asset_test_utils::test_cases::change_storage_constant_by_governance_works::<
+		Runtime,
+		bridging::to_ethereum::BridgeHubEthereumBaseFee,
+		Balance,
+	>(
+		collator_session_keys(),
+		1000,
+		Box::new(|call| RuntimeCall::System(call).encode()),
+		|| {
+			(
+				bridging::to_ethereum::BridgeHubEthereumBaseFee::key().to_vec(),
+				bridging::to_ethereum::BridgeHubEthereumBaseFee::get(),
+			)
+		},
+		|old_value| {
+			if let Some(new_value) = old_value.checked_add(1) {
+				new_value
+			} else {
+				old_value.checked_sub(1).unwrap()
+			}
+		},
+	)
+}

cumulus/parachains/runtimes/assets/common/src/matching.rs

@@ -58,6 +58,37 @@ impl<SelfParaId: Get<ParaId>> ContainsPair<MultiLocation, MultiLocation>
 	}
 }
 
+/// Checks if `a` is from the expected global consensus network. Checks that `MultiLocation-a`
+/// starts with `MultiLocation-b`, and that network is a foreign consensus system.
+pub struct FromNetwork<UniversalLocation, ExpectedNetworkId>(
+	sp_std::marker::PhantomData<(UniversalLocation, ExpectedNetworkId)>,
+);
+impl<UniversalLocation: Get<InteriorMultiLocation>, ExpectedNetworkId: Get<NetworkId>>
+	ContainsPair<MultiLocation, MultiLocation> for FromNetwork<UniversalLocation, ExpectedNetworkId>
+{
+	fn contains(&a: &MultiLocation, b: &MultiLocation) -> bool {
+		// `a` needs to be from `b` at least
+		if !a.starts_with(b) {
+			return false
+		}
+
+		let universal_source = UniversalLocation::get();
+
+		// ensure that `a`` is remote and from the expected network
+		match ensure_is_remote(universal_source, a) {
+			Ok((network_id, _)) => network_id == ExpectedNetworkId::get(),
+			Err(e) => {
+				log::trace!(
+					target: "xcm::contains",
+					"FromNetwork origin: {:?} is not remote to the universal_source: {:?} {:?}",
+					a, universal_source, e
+				);
+				false
+			},
+		}
+	}
+}
+
 /// Adapter verifies if it is allowed to receive `MultiAsset` from `MultiLocation`.
 ///
 /// Note: `MultiLocation` has to be from a different global consensus.
@@ -95,3 +126,92 @@ impl<
 		Reserves::contains(asset, origin)
 	}
 }
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+	use frame_support::parameter_types;
+
+	parameter_types! {
+		pub UniversalLocation: InteriorMultiLocation = X2(GlobalConsensus(Rococo), Parachain(1000));
+		pub ExpectedNetworkId: NetworkId = Wococo;
+	}
+
+	#[test]
+	fn from_network_contains_works() {
+		// asset and origin from foreign consensus works
+		let asset: MultiLocation = (
+			Parent,
+			Parent,
+			GlobalConsensus(Wococo),
+			Parachain(1000),
+			PalletInstance(1),
+			GeneralIndex(1),
+		)
+			.into();
+		let origin: MultiLocation =
+			(Parent, Parent, GlobalConsensus(Wococo), Parachain(1000)).into();
+		assert!(FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
+
+		// asset and origin from local consensus fails
+		let asset: MultiLocation = (
+			Parent,
+			Parent,
+			GlobalConsensus(Rococo),
+			Parachain(1000),
+			PalletInstance(1),
+			GeneralIndex(1),
+		)
+			.into();
+		let origin: MultiLocation =
+			(Parent, Parent, GlobalConsensus(Rococo), Parachain(1000)).into();
+		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
+
+		// asset and origin from here fails
+		let asset: MultiLocation = (PalletInstance(1), GeneralIndex(1)).into();
+		let origin: MultiLocation = Here.into();
+		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
+
+		// asset from different consensus fails
+		let asset: MultiLocation = (
+			Parent,
+			Parent,
+			GlobalConsensus(Polkadot),
+			Parachain(1000),
+			PalletInstance(1),
+			GeneralIndex(1),
+		)
+			.into();
+		let origin: MultiLocation =
+			(Parent, Parent, GlobalConsensus(Wococo), Parachain(1000)).into();
+		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
+
+		// origin from different consensus fails
+		let asset: MultiLocation = (
+			Parent,
+			Parent,
+			GlobalConsensus(Wococo),
+			Parachain(1000),
+			PalletInstance(1),
+			GeneralIndex(1),
+		)
+			.into();
+		let origin: MultiLocation =
+			(Parent, Parent, GlobalConsensus(Polkadot), Parachain(1000)).into();
+		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
+
+		// asset and origin from unexpected consensus fails
+		let asset: MultiLocation = (
+			Parent,
+			Parent,
+			GlobalConsensus(Polkadot),
+			Parachain(1000),
+			PalletInstance(1),
+			GeneralIndex(1),
+		)
+			.into();
+		let origin: MultiLocation =
+			(Parent, Parent, GlobalConsensus(Polkadot), Parachain(1000)).into();
+		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
+	}
+}

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/Cargo.toml

@@ -106,6 +106,21 @@ pallet-bridge-relayers = { path = "../../../../../bridges/modules/relayers", def
 pallet-xcm-bridge-hub = { path = "../../../../../bridges/modules/xcm-bridge-hub", default-features = false }
 bridge-runtime-common = { path = "../../../../../bridges/bin/runtime-common", default-features = false }
 
+# Ethereum Bridge (Snowbridge)
+snowbridge-beacon-primitives = { path = "../../../../../bridges/snowbridge/parachain/primitives/beacon", default-features = false }
+snowbridge-system = { path = "../../../../../bridges/snowbridge/parachain/pallets/system", default-features = false }
+snowbridge-system-runtime-api = { path = "../../../../../bridges/snowbridge/parachain/pallets/system/runtime-api", default-features = false }
+snowbridge-core = { path = "../../../../../bridges/snowbridge/parachain/primitives/core", default-features = false }
+snowbridge-ethereum-beacon-client = { path = "../../../../../bridges/snowbridge/parachain/pallets/ethereum-beacon-client", default-features = false }
+snowbridge-inbound-queue = { path = "../../../../../bridges/snowbridge/parachain/pallets/inbound-queue", default-features = false }
+snowbridge-outbound-queue = { path = "../../../../../bridges/snowbridge/parachain/pallets/outbound-queue", default-features = false }
+snowbridge-outbound-queue-runtime-api = { path = "../../../../../bridges/snowbridge/parachain/pallets/outbound-queue/runtime-api", default-features = false }
+snowbridge-router-primitives = { path = "../../../../../bridges/snowbridge/parachain/primitives/router", default-features = false }
+snowbridge-runtime-common = { path = "../../../../../bridges/snowbridge/parachain/runtime/runtime-common", default-features = false }
+snowbridge-rococo-common = { path = "../../../../../bridges/snowbridge/parachain/runtime/rococo-common", default-features = false }
+
+bridge-hub-common = { path = "../common", default-features = false }
+
 [dev-dependencies]
 static_assertions = "1.1"
 bridge-hub-test-utils = { path = "../test-utils" }
@@ -131,6 +146,7 @@ std = [
 	"bp-rococo/std",
 	"bp-runtime/std",
 	"bp-westend/std",
+	"bridge-hub-common/std",
 	"bridge-runtime-common/std",
 	"codec/std",
 	"cumulus-pallet-aura-ext/std",
@@ -174,6 +190,17 @@ std = [
 	"rococo-runtime-constants/std",
 	"scale-info/std",
 	"serde",
+	"snowbridge-beacon-primitives/std",
+	"snowbridge-core/std",
+	"snowbridge-ethereum-beacon-client/std",
+	"snowbridge-inbound-queue/std",
+	"snowbridge-outbound-queue-runtime-api/std",
+	"snowbridge-outbound-queue/std",
+	"snowbridge-rococo-common/std",
+	"snowbridge-router-primitives/std",
+	"snowbridge-runtime-common/std",
+	"snowbridge-system-runtime-api/std",
+	"snowbridge-system/std",
 	"sp-api/std",
 	"sp-block-builder/std",
 	"sp-consensus-aura/std",
@@ -189,12 +216,15 @@ std = [
 	"sp-transaction-pool/std",
 	"sp-version/std",
 	"substrate-wasm-builder",
+	"substrate-wasm-builder",
 	"xcm-builder/std",
 	"xcm-executor/std",
 	"xcm/std",
 ]
 
 runtime-benchmarks = [
+	"beacon-spec-mainnet",
+	"bridge-hub-common/runtime-benchmarks",
 	"bridge-runtime-common/runtime-benchmarks",
 	"cumulus-pallet-parachain-system/runtime-benchmarks",
 	"cumulus-pallet-session-benchmarking/runtime-benchmarks",
@@ -221,6 +251,14 @@ runtime-benchmarks = [
 	"parachains-common/runtime-benchmarks",
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-runtime-common/runtime-benchmarks",
+	"snowbridge-core/runtime-benchmarks",
+	"snowbridge-ethereum-beacon-client/runtime-benchmarks",
+	"snowbridge-inbound-queue/runtime-benchmarks",
+	"snowbridge-outbound-queue/runtime-benchmarks",
+	"snowbridge-rococo-common/runtime-benchmarks",
+	"snowbridge-router-primitives/runtime-benchmarks",
+	"snowbridge-runtime-common/runtime-benchmarks",
+	"snowbridge-system/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
@@ -253,10 +291,17 @@ try-runtime = [
 	"pallet-xcm/try-runtime",
 	"parachain-info/try-runtime",
 	"polkadot-runtime-common/try-runtime",
+	"snowbridge-ethereum-beacon-client/try-runtime",
+	"snowbridge-inbound-queue/try-runtime",
+	"snowbridge-outbound-queue/try-runtime",
+	"snowbridge-system/try-runtime",
 	"sp-runtime/try-runtime",
 ]
 
 experimental = ["pallet-aura/experimental"]
+beacon-spec-mainnet = [
+	"snowbridge-ethereum-beacon-client/beacon-spec-mainnet",
+]
 
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm

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

@@ -0,0 +1,30 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// This file is part of Cumulus.
+
+// Cumulus is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Cumulus is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+
+use crate::{
+	xcm_config::{AgentIdOf, UniversalLocation},
+	Runtime,
+};
+use snowbridge_rococo_common::EthereumNetwork;
+use snowbridge_router_primitives::outbound::EthereumBlobExporter;
+
+/// Exports message to the Ethereum Gateway contract.
+pub type SnowbridgeExporter = EthereumBlobExporter<
+	UniversalLocation,
+	EthereumNetwork,
+	snowbridge_outbound_queue::Pallet<Runtime>,
+	AgentIdOf,
+>;

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

@@ -30,18 +30,24 @@ include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
 pub mod bridge_common_config;
 pub mod bridge_to_bulletin_config;
+pub mod bridge_to_ethereum_config;
 pub mod bridge_to_westend_config;
 mod weights;
 pub mod xcm_config;
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use snowbridge_beacon_primitives::{Fork, ForkVersions};
+use snowbridge_core::{
+	gwei, meth, outbound::Message, AgentId, AllowSiblingsOnly, PricingParameters, Rewards,
+};
+use snowbridge_router_primitives::inbound::MessageToXcm;
 use sp_api::impl_runtime_apis;
-use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
+use sp_core::{crypto::KeyTypeId, OpaqueMetadata, H160};
 use sp_runtime::{
 	create_runtime_str, generic, impl_opaque_keys,
-	traits::Block as BlockT,
+	traits::{Block as BlockT, Keccak256},
 	transaction_validity::{TransactionSource, TransactionValidity},
-	ApplyExtrinsicResult,
+	ApplyExtrinsicResult, FixedU128,
 };
 
 use sp_std::prelude::*;
@@ -49,7 +55,7 @@ use sp_std::prelude::*;
 use sp_version::NativeVersion;
 use sp_version::RuntimeVersion;
 
-use cumulus_primitives_core::{AggregateMessageOrigin, ParaId};
+use cumulus_primitives_core::ParaId;
 use frame_support::{
 	construct_runtime, derive_impl,
 	dispatch::DispatchClass,
@@ -63,17 +69,25 @@ use frame_system::{
 	limits::{BlockLength, BlockWeights},
 	EnsureRoot,
 };
-use parachains_common::message_queue::{NarrowOriginToSibling, ParaIdToSibling};
-pub use sp_consensus_aura::sr25519::AuthorityId as AuraId;
-pub use sp_runtime::{MultiAddress, Perbill, Permill};
-use xcm_config::{XcmOriginToTransactDispatchOrigin, XcmRouter};
 
 use bp_runtime::HeaderId;
+#[cfg(not(feature = "runtime-benchmarks"))]
+use bridge_hub_common::BridgeHubMessageRouter;
+use bridge_hub_common::{
+	message_queue::{NarrowOriginToSibling, ParaIdToSibling},
+	AggregateMessageOrigin,
+};
+use pallet_xcm::EnsureXcm;
+pub use sp_consensus_aura::sr25519::AuthorityId as AuraId;
+pub use sp_runtime::{MultiAddress, Perbill, Permill};
+use xcm::VersionedMultiLocation;
+use xcm_config::{TreasuryAccount, XcmOriginToTransactDispatchOrigin, XcmRouter};
 
 #[cfg(any(feature = "std", test))]
 pub use sp_runtime::BuildStorage;
 
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
+use rococo_runtime_constants::system_parachain::{ASSET_HUB_ID, BRIDGE_HUB_ID};
 use xcm::latest::prelude::*;
 
 use weights::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight};
@@ -85,6 +99,19 @@ use parachains_common::{
 	HOURS, MAXIMUM_BLOCK_WEIGHT, NORMAL_DISPATCH_RATIO, SLOT_DURATION,
 };
 
+#[cfg(feature = "runtime-benchmarks")]
+use crate::xcm_config::benchmark_helpers::DoNothingRouter;
+#[cfg(feature = "runtime-benchmarks")]
+use snowbridge_beacon_primitives::CompactExecutionHeader;
+#[cfg(feature = "runtime-benchmarks")]
+use snowbridge_core::RingBufferMap;
+#[cfg(feature = "runtime-benchmarks")]
+pub use snowbridge_ethereum_beacon_client::ExecutionHeaderBuffer;
+#[cfg(feature = "runtime-benchmarks")]
+use snowbridge_inbound_queue::BenchmarkHelper;
+#[cfg(feature = "runtime-benchmarks")]
+use sp_core::H256;
+
 /// The address format for describing accounts.
 pub type Address = MultiAddress<AccountId, ()>;
 
@@ -124,6 +151,12 @@ pub type Migrations = (
 	pallet_multisig::migrations::v1::MigrateToV1<Runtime>,
 	InitStorageVersions,
 	cumulus_pallet_xcmp_queue::migration::v4::MigrationToV4<Runtime>,
+	// unreleased
+	snowbridge_system::migration::v0::InitializeOnUpgrade<
+		Runtime,
+		ConstU32<BRIDGE_HUB_ID>,
+		ConstU32<ASSET_HUB_ID>,
+	>,
 );
 
 /// Migration to initialize storage versions for pallets added after genesis.
@@ -325,21 +358,27 @@ impl cumulus_pallet_parachain_system::Config for Runtime {
 impl parachain_info::Config for Runtime {}
 
 parameter_types! {
-	pub MessageQueueServiceWeight: Weight = Perbill::from_percent(35) * RuntimeBlockWeights::get().max_block;
+	/// Amount of weight that can be spent per block to service messages. This was increased
+	/// from 35% to 60% of the max block weight to accommodate the Ethereum beacon light client
+	/// extrinsics. The force_checkpoint and submit extrinsics (for submit, optionally) includes
+	/// the sync committee's pubkeys (512 x 48 bytes)
+	pub MessageQueueServiceWeight: Weight = Perbill::from_percent(60) * RuntimeBlockWeights::get().max_block;
 }
 
 impl pallet_message_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type WeightInfo = weights::pallet_message_queue::WeightInfo<Runtime>;
 	#[cfg(feature = "runtime-benchmarks")]
-	type MessageProcessor = pallet_message_queue::mock_helpers::NoopMessageProcessor<
-		cumulus_primitives_core::AggregateMessageOrigin,
-	>;
+	type MessageProcessor =
+		pallet_message_queue::mock_helpers::NoopMessageProcessor<AggregateMessageOrigin>;
 	#[cfg(not(feature = "runtime-benchmarks"))]
-	type MessageProcessor = xcm_builder::ProcessXcmMessage<
-		AggregateMessageOrigin,
-		xcm_executor::XcmExecutor<xcm_config::XcmConfig>,
-		RuntimeCall,
+	type MessageProcessor = BridgeHubMessageRouter<
+		xcm_builder::ProcessXcmMessage<
+			AggregateMessageOrigin,
+			xcm_executor::XcmExecutor<xcm_config::XcmConfig>,
+			RuntimeCall,
+		>,
+		EthereumOutboundQueue,
 	>;
 	type Size = u32;
 	// The XCMP queue pallet is only ever able to handle the `Sibling(ParaId)` origin:
@@ -456,6 +495,151 @@ impl pallet_utility::Config for Runtime {
 	type WeightInfo = weights::pallet_utility::WeightInfo<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 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;
+	pub Parameters: PricingParameters<u128> = PricingParameters {
+		exchange_rate: FixedU128::from_rational(1, 400),
+		fee_per_gas: gwei(20),
+		rewards: Rewards { local: 1 * UNITS, remote: meth(1) }
+	};
+}
+
+#[cfg(feature = "runtime-benchmarks")]
+impl<T: snowbridge_ethereum_beacon_client::Config> BenchmarkHelper<T> for Runtime {
+	fn initialize_storage(block_hash: H256, header: CompactExecutionHeader) {
+		<ExecutionHeaderBuffer<T>>::insert(block_hash, header);
+	}
+}
+
+impl snowbridge_inbound_queue::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type Verifier = snowbridge_ethereum_beacon_client::Pallet<Runtime>;
+	type Token = Balances;
+	#[cfg(not(feature = "runtime-benchmarks"))]
+	type XcmSender = XcmRouter;
+	#[cfg(feature = "runtime-benchmarks")]
+	type XcmSender = DoNothingRouter;
+	type ChannelLookup = EthereumSystem;
+	type GatewayAddress = EthereumGatewayAddress;
+	#[cfg(feature = "runtime-benchmarks")]
+	type Helper = Runtime;
+	type MessageConverter = MessageToXcm<
+		CreateAssetCall,
+		CreateAssetDeposit,
+		InboundQueuePalletInstance,
+		AccountId,
+		Balance,
+	>;
+	type WeightToFee = WeightToFee;
+	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
+	type MaxMessageSize = ConstU32<2048>;
+	type WeightInfo = weights::snowbridge_inbound_queue::WeightInfo<Runtime>;
+	type PricingParameters = EthereumSystem;
+}
+
+impl snowbridge_outbound_queue::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type Hashing = Keccak256;
+	type MessageQueue = MessageQueue;
+	type Decimals = ConstU8<12>;
+	type MaxMessagePayloadSize = ConstU32<2048>;
+	type MaxMessagesPerBlock = ConstU32<32>;
+	type GasMeter = snowbridge_core::outbound::ConstantGasMeter;
+	type Balance = Balance;
+	type WeightToFee = WeightToFee;
+	type WeightInfo = weights::snowbridge_outbound_queue::WeightInfo<Runtime>;
+	type PricingParameters = EthereumSystem;
+	type Channels = EthereumSystem;
+}
+
+#[cfg(not(feature = "beacon-spec-mainnet"))]
+parameter_types! {
+	pub const ChainForkVersions: ForkVersions = ForkVersions {
+		genesis: Fork {
+			version: [0, 0, 0, 1], // 0x00000001
+			epoch: 0,
+		},
+		altair: Fork {
+			version: [1, 0, 0, 1], // 0x01000001
+			epoch: 0,
+		},
+		bellatrix: Fork {
+			version: [2, 0, 0, 1], // 0x02000001
+			epoch: 0,
+		},
+		capella: Fork {
+			version: [3, 0, 0, 1], // 0x03000001
+			epoch: 0,
+		},
+	};
+	pub const MaxExecutionHeadersToKeep:u32 = 1000;
+}
+
+#[cfg(feature = "beacon-spec-mainnet")]
+parameter_types! {
+	pub const ChainForkVersions: ForkVersions = ForkVersions {
+		genesis: Fork {
+			version: [0, 0, 16, 32], // 0x00001020
+			epoch: 0,
+		},
+		altair: Fork {
+			version: [1, 0, 16, 32], // 0x01001020
+			epoch: 36660,
+		},
+		bellatrix: Fork {
+			version: [2, 0, 16, 32], // 0x02001020
+			epoch: 112260,
+		},
+		capella: Fork {
+			version: [3, 0, 16, 32], // 0x03001020
+			epoch: 162304,
+		},
+	};
+	pub const MaxExecutionHeadersToKeep:u32 = 8192 * 2;
+}
+
+impl snowbridge_ethereum_beacon_client::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type ForkVersions = ChainForkVersions;
+	type MaxExecutionHeadersToKeep = MaxExecutionHeadersToKeep;
+	type WeightInfo = weights::snowbridge_ethereum_beacon_client::WeightInfo<Runtime>;
+}
+
+#[cfg(feature = "runtime-benchmarks")]
+impl snowbridge_system::BenchmarkHelper<RuntimeOrigin> for () {
+	fn make_xcm_origin(location: xcm::latest::MultiLocation) -> RuntimeOrigin {
+		RuntimeOrigin::from(pallet_xcm::Origin::Xcm(location))
+	}
+}
+
+impl snowbridge_system::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type OutboundQueue = EthereumOutboundQueue;
+	type SiblingOrigin = EnsureXcm<AllowSiblingsOnly>;
+	type AgentIdOf = xcm_config::AgentIdOf;
+	type TreasuryAccount = TreasuryAccount;
+	type Token = Balances;
+	type WeightInfo = weights::snowbridge_system::WeightInfo<Runtime>;
+	#[cfg(feature = "runtime-benchmarks")]
+	type Helper = ();
+	type DefaultPricingParameters = Parameters;
+	type InboundDeliveryCost = EthereumInboundQueue;
+}
+
 // Create the runtime by composing the FRAME pallets that were previously configured.
 construct_runtime!(
 	pub enum Runtime
@@ -515,6 +699,11 @@ construct_runtime!(
 		// With-Rococo Bulletin bridge hub pallet.
 		XcmOverPolkadotBulletin: pallet_xcm_bridge_hub::<Instance2>::{Pallet} = 62,
 
+		EthereumInboundQueue: snowbridge_inbound_queue::{Pallet, Call, Storage, Event<T>} = 80,
+		EthereumOutboundQueue: snowbridge_outbound_queue::{Pallet, Call, Storage, Event<T>} = 81,
+		EthereumBeaconClient: snowbridge_ethereum_beacon_client::{Pallet, Call, Storage, Event<T>} = 82,
+		EthereumSystem: snowbridge_system::{Pallet, Call, Storage, Config<T>, Event<T>} = 83,
+
 		// Message Queue. Importantly, is registered last so that messages are processed after
 		// the `on_initialize` hooks of bridging pallets.
 		MessageQueue: pallet_message_queue::{Pallet, Call, Storage, Event<T>} = 250,
@@ -564,6 +753,11 @@ mod benches {
 		[pallet_bridge_messages, RococoToWestend]
 		[pallet_bridge_messages, RococoToRococoBulletin]
 		[pallet_bridge_relayers, BridgeRelayersBench::<Runtime>]
+		// Ethereum Bridge
+		[snowbridge_inbound_queue, EthereumInboundQueue]
+		[snowbridge_outbound_queue, EthereumOutboundQueue]
+		[snowbridge_system, EthereumSystem]
+		[snowbridge_ethereum_beacon_client, EthereumBeaconClient]
 	);
 }
 
@@ -792,6 +986,22 @@ impl_runtime_apis! {
 		}
 	}
 
+	impl snowbridge_outbound_queue_runtime_api::OutboundQueueApi<Block, Balance> for Runtime {
+		fn prove_message(leaf_index: u64) -> Option<snowbridge_outbound_queue::MerkleProof> {
+			snowbridge_outbound_queue::api::prove_message::<Runtime>(leaf_index)
+		}
+
+		fn calculate_fee(message: Message) -> Option<Balance> {
+			snowbridge_outbound_queue::api::calculate_fee::<Runtime>(message)
+		}
+	}
+
+	impl snowbridge_system_runtime_api::ControlApi<Block> for Runtime {
+		fn agent_id(location: VersionedMultiLocation) -> Option<AgentId> {
+			snowbridge_system::api::agent_id::<Runtime>(location)
+		}
+	}
+
 	#[cfg(feature = "try-runtime")]
 	impl frame_try_runtime::TryRuntime<Block> for Runtime {
 		fn on_runtime_upgrade(checks: frame_try_runtime::UpgradeCheckSelect) -> (Weight, Weight) {

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

@@ -40,6 +40,10 @@ pub mod pallet_utility;
 pub mod pallet_xcm;
 pub mod paritydb_weights;
 pub mod rocksdb_weights;
+pub mod snowbridge_ethereum_beacon_client;
+pub mod snowbridge_inbound_queue;
+pub mod snowbridge_outbound_queue;
+pub mod snowbridge_system;
 pub mod xcm;
 
 pub use block_weights::constants::BlockExecutionWeight;

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

@@ -0,0 +1,151 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `snowbridge_ethereum_beacon_client`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2023-06-08, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `ip-172-31-8-124`, CPU: `Intel(R) Xeon(R) Platinum 8375C CPU @ 2.90GHz`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("bridge-hub-rococo-dev"), DB CACHE: 1024
+
+// Executed Command:
+// target/release/polkadot-parachain
+// benchmark
+// pallet
+// --base-path
+// /mnt/scratch/benchmark
+// --chain=bridge-hub-rococo-dev
+// --pallet=snowbridge_ethereum_beacon_client
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --steps
+// 50
+// --repeat
+// 20
+// --output
+// ./parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/weights/snowbridge_ethereum_beacon_client.rs
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+
+use frame_support::{traits::Get, weights::Weight};
+use core::marker::PhantomData;
+
+/// Weight functions for `snowbridge_ethereum_beacon_client`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> snowbridge_ethereum_beacon_client::WeightInfo for WeightInfo<T> {
+	/// Storage: EthereumBeaconClient FinalizedBeaconStateIndex (r:1 w:1)
+	/// Proof: EthereumBeaconClient FinalizedBeaconStateIndex (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconStateMapping (r:1 w:1)
+	/// Proof: EthereumBeaconClient FinalizedBeaconStateMapping (max_values: None, max_size: Some(36), added: 2511, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient NextSyncCommittee (r:0 w:1)
+	/// Proof: EthereumBeaconClient NextSyncCommittee (max_values: Some(1), max_size: Some(92372), added: 92867, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient InitialCheckpointRoot (r:0 w:1)
+	/// Proof: EthereumBeaconClient InitialCheckpointRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ValidatorsRoot (r:0 w:1)
+	/// Proof: EthereumBeaconClient ValidatorsRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient LatestFinalizedBlockRoot (r:0 w:1)
+	/// Proof: EthereumBeaconClient LatestFinalizedBlockRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient CurrentSyncCommittee (r:0 w:1)
+	/// Proof: EthereumBeaconClient CurrentSyncCommittee (max_values: Some(1), max_size: Some(92372), added: 92867, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient LatestExecutionState (r:0 w:1)
+	/// Proof: EthereumBeaconClient LatestExecutionState (max_values: Some(1), max_size: Some(80), added: 575, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconState (r:0 w:1)
+	/// Proof: EthereumBeaconClient FinalizedBeaconState (max_values: None, max_size: Some(72), added: 2547, mode: MaxEncodedLen)
+	fn force_checkpoint() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `42`
+		//  Estimated: `3501`
+		// Minimum execution time: 97_185_781_000 picoseconds.
+		Weight::from_parts(97_263_571_000, 0)
+			.saturating_add(Weight::from_parts(0, 3501))
+			.saturating_add(T::DbWeight::get().reads(2))
+			.saturating_add(T::DbWeight::get().writes(9))
+	}
+	/// Storage: EthereumBeaconClient LatestFinalizedBlockRoot (r:1 w:1)
+	/// Proof: EthereumBeaconClient LatestFinalizedBlockRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconState (r:1 w:1)
+	/// Proof: EthereumBeaconClient FinalizedBeaconState (max_values: None, max_size: Some(72), added: 2547, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient LatestExecutionState (r:1 w:0)
+	/// Proof: EthereumBeaconClient LatestExecutionState (max_values: Some(1), max_size: Some(80), added: 575, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient NextSyncCommittee (r:1 w:0)
+	/// Proof: EthereumBeaconClient NextSyncCommittee (max_values: Some(1), max_size: Some(92372), added: 92867, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient CurrentSyncCommittee (r:1 w:0)
+	/// Proof: EthereumBeaconClient CurrentSyncCommittee (max_values: Some(1), max_size: Some(92372), added: 92867, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ValidatorsRoot (r:1 w:0)
+	/// Proof: EthereumBeaconClient ValidatorsRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconStateIndex (r:1 w:1)
+	/// Proof: EthereumBeaconClient FinalizedBeaconStateIndex (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconStateMapping (r:1 w:1)
+	/// Proof: EthereumBeaconClient FinalizedBeaconStateMapping (max_values: None, max_size: Some(36), added: 2511, mode: MaxEncodedLen)
+	fn submit() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `92753`
+		//  Estimated: `93857`
+		// Minimum execution time: 25_999_968_000 picoseconds.
+		Weight::from_parts(26_051_019_000, 0)
+			.saturating_add(Weight::from_parts(0, 93857))
+			.saturating_add(T::DbWeight::get().reads(8))
+			.saturating_add(T::DbWeight::get().writes(4))
+	}
+	/// Storage: EthereumBeaconClient LatestFinalizedBlockRoot (r:1 w:0)
+	/// Proof: EthereumBeaconClient LatestFinalizedBlockRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconState (r:1 w:0)
+	/// Proof: EthereumBeaconClient FinalizedBeaconState (max_values: None, max_size: Some(72), added: 2547, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient LatestExecutionState (r:1 w:0)
+	/// Proof: EthereumBeaconClient LatestExecutionState (max_values: Some(1), max_size: Some(80), added: 575, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient NextSyncCommittee (r:1 w:1)
+	/// Proof: EthereumBeaconClient NextSyncCommittee (max_values: Some(1), max_size: Some(92372), added: 92867, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient CurrentSyncCommittee (r:1 w:0)
+	/// Proof: EthereumBeaconClient CurrentSyncCommittee (max_values: Some(1), max_size: Some(92372), added: 92867, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ValidatorsRoot (r:1 w:0)
+	/// Proof: EthereumBeaconClient ValidatorsRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	fn submit_with_sync_committee() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `92717`
+		//  Estimated: `93857`
+		// Minimum execution time: 122_354_917_000 picoseconds.
+		Weight::from_parts(122_461_312_000, 0)
+			.saturating_add(Weight::from_parts(0, 93857))
+			.saturating_add(T::DbWeight::get().reads(6))
+			.saturating_add(T::DbWeight::get().writes(1))
+	}
+	/// Storage: EthereumBeaconClient LatestFinalizedBlockRoot (r:1 w:0)
+	/// Proof: EthereumBeaconClient LatestFinalizedBlockRoot (max_values: Some(1), max_size: Some(32), added: 527, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient FinalizedBeaconState (r:1 w:0)
+	/// Proof: EthereumBeaconClient FinalizedBeaconState (max_values: None, max_size: Some(72), added: 2547, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient LatestExecutionState (r:1 w:1)
+	/// Proof: EthereumBeaconClient LatestExecutionState (max_values: Some(1), max_size: Some(80), added: 575, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ExecutionHeaderIndex (r:1 w:1)
+	/// Proof: EthereumBeaconClient ExecutionHeaderIndex (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ExecutionHeaderMapping (r:1 w:1)
+	/// Proof: EthereumBeaconClient ExecutionHeaderMapping (max_values: None, max_size: Some(36), added: 2511, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ExecutionHeaders (r:0 w:1)
+	/// Proof: EthereumBeaconClient ExecutionHeaders (max_values: None, max_size: Some(136), added: 2611, mode: MaxEncodedLen)
+	fn submit_execution_header() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `386`
+		//  Estimated: `3537`
+		// Minimum execution time: 108_761_000 picoseconds.
+		Weight::from_parts(113_158_000, 0)
+			.saturating_add(Weight::from_parts(0, 3537))
+			.saturating_add(T::DbWeight::get().reads(5))
+			.saturating_add(T::DbWeight::get().writes(4))
+	}
+}

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

@@ -0,0 +1,69 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `snowbridge_inbound_queue`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2023-09-06, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `macbook pro 14 m2`, CPU: `m2-arm64`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("bridge-hub-rococo-dev"), DB CACHE: 1024
+
+// Executed Command:
+// target/release/polkadot-parachain
+// benchmark
+// pallet
+// --chain=bridge-hub-rococo-dev
+// --pallet=snowbridge_inbound_queue
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --steps
+// 50
+// --repeat
+// 20
+// --output
+// ./parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/weights/snowbridge_inbound_queue.rs
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+
+use frame_support::{traits::Get, weights::Weight};
+use core::marker::PhantomData;
+
+/// Weight functions for `snowbridge_inbound_queue`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> snowbridge_inbound_queue::WeightInfo for WeightInfo<T> {
+	/// Storage: EthereumInboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumInboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: EthereumBeaconClient ExecutionHeaders (r:1 w:0)
+	/// Proof: EthereumBeaconClient ExecutionHeaders (max_values: None, max_size: Some(136), added: 2611, mode: MaxEncodedLen)
+	/// Storage: EthereumInboundQueue Nonce (r:1 w:1)
+	/// Proof: EthereumInboundQueue Nonce (max_values: None, max_size: Some(20), added: 2495, mode: MaxEncodedLen)
+	/// Storage: System Account (r:1 w:1)
+	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
+	fn submit() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `457`
+		//  Estimated: `3601`
+		// Minimum execution time: 69_000_000 picoseconds.
+		Weight::from_parts(70_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 3601))
+			.saturating_add(T::DbWeight::get().reads(4))
+			.saturating_add(T::DbWeight::get().writes(2))
+	}
+}

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

@@ -0,0 +1,87 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `snowbridge_outbound_queue`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2023-10-20, STEPS: `2`, REPEAT: `1`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `192.168.1.13`, CPU: `<UNKNOWN>`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("bridge-hub-rococo-dev"), DB CACHE: 1024
+
+// Executed Command:
+// ../target/release/polkadot-parachain
+// benchmark
+// pallet
+// --chain=bridge-hub-rococo-dev
+// --pallet=snowbridge_outbound_queue
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --output
+// ../parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/weights/snowbridge_outbound_queue.rs
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+
+use frame_support::{traits::Get, weights::Weight};
+use core::marker::PhantomData;
+
+/// Weight functions for `snowbridge_outbound_queue`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> snowbridge_outbound_queue::WeightInfo for WeightInfo<T> {
+	/// Storage: EthereumOutboundQueue MessageLeaves (r:1 w:1)
+	/// Proof Skipped: EthereumOutboundQueue MessageLeaves (max_values: Some(1), max_size: None, mode: Measured)
+	/// Storage: EthereumOutboundQueue PendingHighPriorityMessageCount (r:1 w:1)
+	/// Proof: EthereumOutboundQueue PendingHighPriorityMessageCount (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue Nonce (r:1 w:1)
+	/// Proof: EthereumOutboundQueue Nonce (max_values: None, max_size: Some(20), added: 2495, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue Messages (r:1 w:1)
+	/// Proof Skipped: EthereumOutboundQueue Messages (max_values: Some(1), max_size: None, mode: Measured)
+	fn do_process_message() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `42`
+		//  Estimated: `3485`
+		// Minimum execution time: 39_000_000 picoseconds.
+		Weight::from_parts(39_000_000, 3485)
+			.saturating_add(T::DbWeight::get().reads(4_u64))
+			.saturating_add(T::DbWeight::get().writes(4_u64))
+	}
+	/// Storage: EthereumOutboundQueue MessageLeaves (r:1 w:0)
+	/// Proof Skipped: EthereumOutboundQueue MessageLeaves (max_values: Some(1), max_size: None, mode: Measured)
+	/// Storage: System Digest (r:1 w:1)
+	/// Proof Skipped: System Digest (max_values: Some(1), max_size: None, mode: Measured)
+	fn commit() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `1094`
+		//  Estimated: `2579`
+		// Minimum execution time: 28_000_000 picoseconds.
+		Weight::from_parts(28_000_000, 2579)
+			.saturating_add(T::DbWeight::get().reads(2_u64))
+			.saturating_add(T::DbWeight::get().writes(1_u64))
+	}
+
+	fn commit_single() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `1094`
+		//  Estimated: `2579`
+		// Minimum execution time: 9_000_000 picoseconds.
+		Weight::from_parts(9_000_000, 1586)
+			.saturating_add(T::DbWeight::get().reads(2_u64))
+			.saturating_add(T::DbWeight::get().writes(1_u64))
+	}
+}

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

@@ -0,0 +1,256 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `snowbridge_system`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2023-10-09, STEPS: `2`, REPEAT: `1`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `crake.local`, CPU: `<UNKNOWN>`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("bridge-hub-rococo-dev"), DB CACHE: 1024
+
+// Executed Command:
+// target/release/polkadot-parachain
+// benchmark
+// pallet
+// --chain
+// bridge-hub-rococo-dev
+// --pallet=snowbridge_system
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --output
+// parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/weights/snowbridge_system.rs
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+
+use frame_support::{traits::Get, weights::Weight};
+use core::marker::PhantomData;
+
+/// Weight functions for `snowbridge_system`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> snowbridge_system::WeightInfo for WeightInfo<T> {
+	/// Storage: ParachainInfo ParachainId (r:1 w:0)
+	/// Proof: ParachainInfo ParachainId (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:1 w:1)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:1)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn upgrade() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `80`
+		//  Estimated: `3517`
+		// Minimum execution time: 47_000_000 picoseconds.
+		Weight::from_parts(47_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 3517))
+			.saturating_add(T::DbWeight::get().reads(4))
+			.saturating_add(T::DbWeight::get().writes(3))
+	}
+	/// Storage: EthereumSystem Agents (r:1 w:1)
+	/// Proof: EthereumSystem Agents (max_values: None, max_size: Some(40), added: 2515, mode: MaxEncodedLen)
+	/// Storage: System Account (r:2 w:2)
+	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
+	/// Storage: ParachainInfo ParachainId (r:1 w:0)
+	/// Proof: ParachainInfo ParachainId (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:1 w:1)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:1)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn create_agent() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `187`
+		//  Estimated: `6196`
+		// Minimum execution time: 87_000_000 picoseconds.
+		Weight::from_parts(87_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 6196))
+			.saturating_add(T::DbWeight::get().reads(7))
+			.saturating_add(T::DbWeight::get().writes(6))
+	}
+	/// Storage: System Account (r:2 w:2)
+	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
+	/// Storage: EthereumSystem Agents (r:1 w:0)
+	/// Proof: EthereumSystem Agents (max_values: None, max_size: Some(40), added: 2515, mode: MaxEncodedLen)
+	/// Storage: EthereumSystem Channels (r:1 w:1)
+	/// Proof: EthereumSystem Channels (max_values: None, max_size: Some(12), added: 2487, mode: MaxEncodedLen)
+	/// Storage: ParachainInfo ParachainId (r:1 w:0)
+	/// Proof: ParachainInfo ParachainId (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:1 w:1)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:1 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn create_channel() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `602`
+		//  Estimated: `69050`
+		// Minimum execution time: 84_000_000 picoseconds.
+		Weight::from_parts(84_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 69050))
+			.saturating_add(T::DbWeight::get().reads(8))
+			.saturating_add(T::DbWeight::get().writes(5))
+	}
+	/// Storage: EthereumSystem Channels (r:1 w:0)
+	/// Proof: EthereumSystem Channels (max_values: None, max_size: Some(12), added: 2487, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:2 w:2)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:0)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn update_channel() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `256`
+		//  Estimated: `6044`
+		// Minimum execution time: 41_000_000 picoseconds.
+		Weight::from_parts(41_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 6044))
+			.saturating_add(T::DbWeight::get().reads(5))
+			.saturating_add(T::DbWeight::get().writes(3))
+	}
+	/// Storage: EthereumSystem Channels (r:1 w:0)
+	/// Proof: EthereumSystem Channels (max_values: None, max_size: Some(12), added: 2487, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:2 w:2)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:0)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn force_update_channel() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `256`
+		//  Estimated: `6044`
+		// Minimum execution time: 41_000_000 picoseconds.
+		Weight::from_parts(41_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 6044))
+			.saturating_add(T::DbWeight::get().reads(5))
+			.saturating_add(T::DbWeight::get().writes(3))
+	}
+	/// Storage: ParachainInfo ParachainId (r:1 w:0)
+	/// Proof: ParachainInfo ParachainId (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:1 w:1)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:1)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn set_operating_mode() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `80`
+		//  Estimated: `3517`
+		// Minimum execution time: 30_000_000 picoseconds.
+		Weight::from_parts(30_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 3517))
+			.saturating_add(T::DbWeight::get().reads(4))
+			.saturating_add(T::DbWeight::get().writes(3))
+	}
+	/// Storage: EthereumSystem Agents (r:1 w:0)
+	/// Proof: EthereumSystem Agents (max_values: None, max_size: Some(40), added: 2515, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:2 w:2)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:0)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn transfer_native_from_agent() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `252`
+		//  Estimated: `6044`
+		// Minimum execution time: 43_000_000 picoseconds.
+		Weight::from_parts(43_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 6044))
+			.saturating_add(T::DbWeight::get().reads(5))
+			.saturating_add(T::DbWeight::get().writes(3))
+	}
+	/// Storage: EthereumSystem Agents (r:1 w:0)
+	/// Proof: EthereumSystem Agents (max_values: None, max_size: Some(40), added: 2515, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:2 w:2)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:0)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn force_transfer_native_from_agent() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `252`
+		//  Estimated: `6044`
+		// Minimum execution time: 42_000_000 picoseconds.
+		Weight::from_parts(42_000_000, 0)
+			.saturating_add(Weight::from_parts(0, 6044))
+			.saturating_add(T::DbWeight::get().reads(5))
+			.saturating_add(T::DbWeight::get().writes(3))
+	}
+
+	/// Storage: ParachainInfo ParachainId (r:1 w:0)
+	/// Proof: ParachainInfo ParachainId (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:1 w:1)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:1)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn set_token_transfer_fees() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `80`
+		//  Estimated: `3517`
+		// Minimum execution time: 31_000_000 picoseconds.
+		Weight::from_parts(42_000_000, 3517)
+			.saturating_add(T::DbWeight::get().reads(4_u64))
+			.saturating_add(T::DbWeight::get().writes(3_u64))
+	}
+
+	/// Storage: ParachainInfo ParachainId (r:1 w:0)
+	/// Proof: ParachainInfo ParachainId (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
+	/// Storage: EthereumOutboundQueue PalletOperatingMode (r:1 w:0)
+	/// Proof: EthereumOutboundQueue PalletOperatingMode (max_values: Some(1), max_size: Some(1), added: 496, mode: MaxEncodedLen)
+	/// Storage: MessageQueue BookStateFor (r:1 w:1)
+	/// Proof: MessageQueue BookStateFor (max_values: None, max_size: Some(52), added: 2527, mode: MaxEncodedLen)
+	/// Storage: MessageQueue ServiceHead (r:1 w:1)
+	/// Proof: MessageQueue ServiceHead (max_values: Some(1), max_size: Some(5), added: 500, mode: MaxEncodedLen)
+	/// Storage: MessageQueue Pages (r:0 w:1)
+	/// Proof: MessageQueue Pages (max_values: None, max_size: Some(65585), added: 68060, mode: MaxEncodedLen)
+	fn set_pricing_parameters() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `80`
+		//  Estimated: `3517`
+		// Minimum execution time: 31_000_000 picoseconds.
+		Weight::from_parts(42_000_000, 3517)
+			.saturating_add(T::DbWeight::get().reads(4_u64))
+			.saturating_add(T::DbWeight::get().writes(3_u64))
+	}
+}

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};
@@ -46,24 +47,26 @@ use parachains_common::{
 };
 use polkadot_parachain_primitives::primitives::Sibling;
 use polkadot_runtime_common::xcm_sender::ExponentialPrice;
-use sp_core::Get;
+use snowbridge_core::DescribeHere;
+use snowbridge_rococo_common::EthereumNetwork;
+use snowbridge_runtime_common::XcmExportFeeToSibling;
+use sp_core::{Get, H256};
 use sp_runtime::traits::AccountIdConversion;
 use sp_std::marker::PhantomData;
 use xcm::latest::prelude::*;
 #[allow(deprecated)]
-use xcm_builder::CurrencyAdapter;
 use xcm_builder::{
 	deposit_or_burn_fee, AccountId32Aliases, AllowExplicitUnpaidExecutionFrom,
 	AllowKnownQueryResponses, AllowSubscriptionsFrom, AllowTopLevelPaidExecutionFrom,
-	DenyReserveTransferToRelayChain, DenyThenTry, EnsureXcmOrigin, HandleFee, IsConcrete,
-	ParentAsSuperuser, ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative,
-	SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
-	SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId, UsingComponents,
-	WeightInfoBounds, WithComputedOrigin, WithUniqueTopic, XcmFeeManagerFromComponents,
+	CurrencyAdapter, DenyReserveTransferToRelayChain, DenyThenTry, DescribeAllTerminal,
+	DescribeFamily, EnsureXcmOrigin, HandleFee, HashedDescription, IsConcrete, ParentAsSuperuser,
+	ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative, SiblingParachainConvertsVia,
+	SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit,
+	TrailingSetTopicAsId, UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
 	XcmFeeToAccount,
 };
 use xcm_executor::{
-	traits::{FeeReason, TransactAsset, WithOriginFilter},
+	traits::{FeeManager, FeeReason, FeeReason::Export, TransactAsset, WithOriginFilter},
 	XcmExecutor,
 };
 
@@ -160,7 +163,8 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 			RuntimeCall::System(frame_system::Call::set_storage { items })
 				if items.iter().all(|(k, _)| {
 					k.eq(&DeliveryRewardInBalance::key()) |
-						k.eq(&RequiredStakeForStakeAndSlash::key())
+						k.eq(&RequiredStakeForStakeAndSlash::key()) |
+						k.eq(&EthereumGatewayAddress::key())
 				}) =>
 				return true,
 			_ => (),
@@ -217,7 +221,15 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 				RuntimeCall::BridgePolkadotBulletinMessages(pallet_bridge_messages::Call::<
 					Runtime,
 					WithRococoBulletinMessagesInstance,
-				>::set_operating_mode { .. })
+				>::set_operating_mode { .. }) |
+				RuntimeCall::EthereumBeaconClient(
+					snowbridge_ethereum_beacon_client::Call::force_checkpoint { .. } |
+						snowbridge_ethereum_beacon_client::Call::set_operating_mode { .. },
+				) | RuntimeCall::EthereumInboundQueue(
+				snowbridge_inbound_queue::Call::set_operating_mode { .. },
+			) | RuntimeCall::EthereumOutboundQueue(
+				snowbridge_outbound_queue::Call::set_operating_mode { .. },
+			) | RuntimeCall::EthereumSystem(..)
 		)
 	}
 }
@@ -291,7 +303,7 @@ impl xcm_executor::Config for XcmConfig {
 	type SubscriptionService = PolkadotXcm;
 	type PalletInstancesInfo = AllPalletsWithSystem;
 	type MaxAssetsIntoHolding = MaxAssetsIntoHolding;
-	type FeeManager = XcmFeeManagerFromComponents<
+	type FeeManager = XcmFeeManagerFromComponentsBridgeHub<
 		WaivedLocations,
 		(
 			XcmExportFeeToRelayerRewardAccounts<
@@ -301,12 +313,21 @@ impl xcm_executor::Config for XcmConfig {
 				crate::bridge_to_westend_config::BridgeHubWestendChainId,
 				crate::bridge_to_westend_config::AssetHubRococoToAssetHubWestendMessagesLane,
 			>,
+			XcmExportFeeToSibling<
+				bp_rococo::Balance,
+				AccountId,
+				TokenLocation,
+				EthereumNetwork,
+				Self::AssetTransactor,
+				crate::EthereumOutboundQueue,
+			>,
 			XcmFeeToAccount<Self::AssetTransactor, AccountId, TreasuryAccount>,
 		),
 	>;
 	type MessageExporter = (
 		crate::bridge_to_westend_config::ToBridgeHubWestendHaulBlobExporter,
 		crate::bridge_to_bulletin_config::ToRococoBulletinHaulBlobExporter,
+		crate::bridge_to_ethereum_config::SnowbridgeExporter,
 	);
 	type UniversalAliases = Nothing;
 	type CallDispatcher = WithOriginFilter<SafeCallFilter>;
@@ -367,6 +388,10 @@ impl cumulus_pallet_xcm::Config for Runtime {
 	type XcmExecutor = XcmExecutor<XcmConfig>;
 }
 
+/// Creates an AgentId from a MultiLocation. An AgentId is a unique mapping to a Agent contract on
+/// Ethereum which acts as the sovereign account for the MultiLocation.
+pub type AgentIdOf = HashedDescription<H256, (DescribeHere, DescribeFamily<DescribeAllTerminal>)>;
+
 /// A `HandleFee` implementation that simply deposits the fees for `ExportMessage` XCM instructions
 /// into the accounts that are used for paying the relayer rewards.
 /// Burns the fees in case of a failure.
@@ -459,3 +484,41 @@ impl<
 		fee
 	}
 }
+
+pub struct XcmFeeManagerFromComponentsBridgeHub<WaivedLocations, HandleFee>(
+	PhantomData<(WaivedLocations, HandleFee)>,
+);
+impl<WaivedLocations: Contains<MultiLocation>, FeeHandler: HandleFee> FeeManager
+	for XcmFeeManagerFromComponentsBridgeHub<WaivedLocations, FeeHandler>
+{
+	fn is_waived(origin: Option<&MultiLocation>, fee_reason: FeeReason) -> bool {
+		let Some(loc) = origin else { return false };
+		if let Export { network, destination: Here } = fee_reason {
+			return !(network == EthereumNetwork::get())
+		}
+		WaivedLocations::contains(loc)
+	}
+
+	fn handle_fee(fee: MultiAssets, context: Option<&XcmContext>, reason: FeeReason) {
+		FeeHandler::handle_fee(fee, context, reason);
+	}
+}
+
+#[cfg(feature = "runtime-benchmarks")]
+pub mod benchmark_helpers {
+	use crate::{MultiAssets, MultiLocation, SendError, SendResult, SendXcm, Xcm, XcmHash};
+
+	pub struct DoNothingRouter;
+	impl SendXcm for DoNothingRouter {
+		type Ticket = ();
+		fn validate(
+			_dest: &mut Option<MultiLocation>,
+			_msg: &mut Option<Xcm<()>>,
+		) -> SendResult<()> {
+			Ok(((), MultiAssets::new()))
+		}
+		fn deliver(_: ()) -> Result<XcmHash, SendError> {
+			Ok([0; 32])
+		}
+	}
+}

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, RuntimeOrigin, 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()),
+			|_| [1; 20].into(),
+		)
+	}
+
 	#[test]
 	fn change_delivery_reward_by_governance_works() {
 		bridge_hub_test_utils::test_cases::change_storage_constant_by_governance_works::<

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/Cargo.toml

@@ -95,6 +95,7 @@ pallet-bridge-parachains = { path = "../../../../../bridges/modules/parachains",
 pallet-bridge-relayers = { path = "../../../../../bridges/modules/relayers", default-features = false }
 pallet-xcm-bridge-hub = { path = "../../../../../bridges/modules/xcm-bridge-hub", default-features = false }
 bridge-runtime-common = { path = "../../../../../bridges/bin/runtime-common", default-features = false }
+bridge-hub-common = { path = "../../bridge-hubs/common", default-features = false }
 
 [dev-dependencies]
 static_assertions = "1.1"
@@ -117,6 +118,7 @@ std = [
 	"bp-rococo/std",
 	"bp-runtime/std",
 	"bp-westend/std",
+	"bridge-hub-common/std",
 	"bridge-runtime-common/std",
 	"codec/std",
 	"cumulus-pallet-aura-ext/std",
@@ -181,6 +183,7 @@ std = [
 ]
 
 runtime-benchmarks = [
+	"bridge-hub-common/runtime-benchmarks",
 	"bridge-runtime-common/runtime-benchmarks",
 	"cumulus-pallet-parachain-system/runtime-benchmarks",
 	"cumulus-pallet-session-benchmarking/runtime-benchmarks",

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

@@ -33,8 +33,7 @@ mod weights;
 pub mod xcm_config;
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
-use cumulus_primitives_core::{AggregateMessageOrigin, ParaId};
-use parachains_common::message_queue::{NarrowOriginToSibling, ParaIdToSibling};
+use cumulus_primitives_core::ParaId;
 use sp_api::impl_runtime_apis;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
@@ -49,6 +48,10 @@ use sp_std::prelude::*;
 use sp_version::NativeVersion;
 use sp_version::RuntimeVersion;
 
+use bridge_hub_common::{
+	message_queue::{NarrowOriginToSibling, ParaIdToSibling},
+	AggregateMessageOrigin,
+};
 use frame_support::{
 	construct_runtime, derive_impl,
 	dispatch::DispatchClass,
@@ -328,9 +331,8 @@ impl pallet_message_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type WeightInfo = weights::pallet_message_queue::WeightInfo<Runtime>;
 	#[cfg(feature = "runtime-benchmarks")]
-	type MessageProcessor = pallet_message_queue::mock_helpers::NoopMessageProcessor<
-		cumulus_primitives_core::AggregateMessageOrigin,
-	>;
+	type MessageProcessor =
+		pallet_message_queue::mock_helpers::NoopMessageProcessor<AggregateMessageOrigin>;
 	#[cfg(not(feature = "runtime-benchmarks"))]
 	type MessageProcessor = xcm_builder::ProcessXcmMessage<
 		AggregateMessageOrigin,

cumulus/parachains/runtimes/bridge-hubs/common/Cargo.toml

@@ -0,0 +1,42 @@
+[package]
+name = "bridge-hub-common"
+version = "0.1.0"
+authors.workspace = true
+edition.workspace = true
+description = "Bridge hub common utilities"
+license = "Apache-2.0"
+
+[dependencies]
+codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive"] }
+scale-info = { version = "2.10.0", default-features = false, features = ["derive"] }
+frame-support = { path = "../../../../../substrate/frame/support", default-features = false }
+sp-std = { path = "../../../../../substrate/primitives/std", default-features = false }
+sp-core = { path = "../../../../../substrate/primitives/core", default-features = false }
+sp-runtime = { path = "../../../../../substrate/primitives/runtime", default-features = false }
+cumulus-primitives-core = { path = "../../../../primitives/core", default-features = false }
+xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false }
+pallet-message-queue = { path = "../../../../../substrate/frame/message-queue", default-features = false }
+snowbridge-core = { path = "../../../../../bridges/snowbridge/parachain/primitives/core", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+	"codec/std",
+	"cumulus-primitives-core/std",
+	"frame-support/std",
+	"pallet-message-queue/std",
+	"scale-info/std",
+	"snowbridge-core/std",
+	"sp-core/std",
+	"sp-runtime/std",
+	"sp-std/std",
+	"xcm/std",
+]
+
+runtime-benchmarks = [
+	"cumulus-primitives-core/runtime-benchmarks",
+	"frame-support/runtime-benchmarks",
+	"pallet-message-queue/runtime-benchmarks",
+	"snowbridge-core/runtime-benchmarks",
+	"sp-runtime/runtime-benchmarks",
+]

cumulus/parachains/runtimes/bridge-hubs/common/src/digest_item.rs

@@ -0,0 +1,34 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//! Custom digest items
+
+use codec::{Decode, Encode};
+use sp_core::{RuntimeDebug, H256};
+use sp_runtime::generic::DigestItem;
+
+/// Custom header digest items, inserted as DigestItem::Other
+#[derive(Encode, Decode, Copy, Clone, Eq, PartialEq, RuntimeDebug)]
+pub enum CustomDigestItem {
+	#[codec(index = 0)]
+	/// Merkle root of outbound Snowbridge messages.
+	Snowbridge(H256),
+}
+
+/// Convert custom application digest item into a concrete digest item
+impl From<CustomDigestItem> for DigestItem {
+	fn from(val: CustomDigestItem) -> Self {
+		DigestItem::Other(val.encode())
+	}
+}

cumulus/parachains/runtimes/bridge-hubs/common/src/lib.rs

@@ -0,0 +1,21 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#![cfg_attr(not(feature = "std"), no_std)]
+
+pub mod digest_item;
+pub mod message_queue;
+
+pub use digest_item::CustomDigestItem;
+pub use message_queue::{AggregateMessageOrigin, BridgeHubMessageRouter};

cumulus/parachains/runtimes/bridge-hubs/common/src/message_queue.rs

@@ -0,0 +1,146 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//! Runtime configuration for MessageQueue pallet
+use codec::{Decode, Encode, MaxEncodedLen};
+use cumulus_primitives_core::{AggregateMessageOrigin as CumulusAggregateMessageOrigin, ParaId};
+use frame_support::{
+	traits::{ProcessMessage, ProcessMessageError, QueueFootprint, QueuePausedQuery},
+	weights::WeightMeter,
+};
+use pallet_message_queue::OnQueueChanged;
+use scale_info::TypeInfo;
+use snowbridge_core::ChannelId;
+use sp_std::{marker::PhantomData, prelude::*};
+use xcm::v3::{Junction, MultiLocation};
+
+/// The aggregate origin of an inbound message.
+/// This is specialized for BridgeHub, as the snowbridge-outbound-queue pallet is also using
+/// the shared MessageQueue pallet.
+#[derive(Encode, Decode, Copy, MaxEncodedLen, Clone, Eq, PartialEq, TypeInfo, Debug)]
+pub enum AggregateMessageOrigin {
+	/// The message came from the para-chain itself.
+	Here,
+	/// The message came from the relay-chain.
+	///
+	/// This is used by the DMP queue.
+	Parent,
+	/// The message came from a sibling para-chain.
+	///
+	/// This is used by the HRMP queue.
+	Sibling(ParaId),
+	/// The message came from a snowbridge channel.
+	///
+	/// This is used by Snowbridge inbound queue.
+	Snowbridge(ChannelId),
+}
+
+impl From<AggregateMessageOrigin> for MultiLocation {
+	fn from(origin: AggregateMessageOrigin) -> Self {
+		use AggregateMessageOrigin::*;
+		match origin {
+			Here => MultiLocation::here(),
+			Parent => MultiLocation::parent(),
+			Sibling(id) => MultiLocation::new(1, Junction::Parachain(id.into())),
+			// NOTE: We don't need this conversion for Snowbridge. However we have to
+			// implement it anyway as xcm_builder::ProcessXcmMessage requires it.
+			Snowbridge(_) => MultiLocation::default(),
+		}
+	}
+}
+
+impl From<CumulusAggregateMessageOrigin> for AggregateMessageOrigin {
+	fn from(origin: CumulusAggregateMessageOrigin) -> Self {
+		match origin {
+			CumulusAggregateMessageOrigin::Here => Self::Here,
+			CumulusAggregateMessageOrigin::Parent => Self::Parent,
+			CumulusAggregateMessageOrigin::Sibling(id) => Self::Sibling(id),
+		}
+	}
+}
+
+#[cfg(feature = "runtime-benchmarks")]
+impl From<u32> for AggregateMessageOrigin {
+	fn from(x: u32) -> Self {
+		match x {
+			0 => Self::Here,
+			1 => Self::Parent,
+			p => Self::Sibling(ParaId::from(p)),
+		}
+	}
+}
+
+/// Routes messages to either the XCMP or Snowbridge processor.
+pub struct BridgeHubMessageRouter<XcmpProcessor, SnowbridgeProcessor>(
+	PhantomData<(XcmpProcessor, SnowbridgeProcessor)>,
+)
+where
+	XcmpProcessor: ProcessMessage<Origin = AggregateMessageOrigin>,
+	SnowbridgeProcessor: ProcessMessage<Origin = AggregateMessageOrigin>;
+
+impl<XcmpProcessor, SnowbridgeProcessor> ProcessMessage
+	for BridgeHubMessageRouter<XcmpProcessor, SnowbridgeProcessor>
+where
+	XcmpProcessor: ProcessMessage<Origin = AggregateMessageOrigin>,
+	SnowbridgeProcessor: ProcessMessage<Origin = AggregateMessageOrigin>,
+{
+	type Origin = AggregateMessageOrigin;
+
+	fn process_message(
+		message: &[u8],
+		origin: Self::Origin,
+		meter: &mut WeightMeter,
+		id: &mut [u8; 32],
+	) -> Result<bool, ProcessMessageError> {
+		use AggregateMessageOrigin::*;
+		match origin {
+			Here | Parent | Sibling(_) =>
+				XcmpProcessor::process_message(message, origin, meter, id),
+			Snowbridge(_) => SnowbridgeProcessor::process_message(message, origin, meter, id),
+		}
+	}
+}
+
+/// Narrow the scope of the `Inner` query from `AggregateMessageOrigin` to `ParaId`.
+///
+/// All non-`Sibling` variants will be ignored.
+pub struct NarrowOriginToSibling<Inner>(PhantomData<Inner>);
+impl<Inner: QueuePausedQuery<ParaId>> QueuePausedQuery<AggregateMessageOrigin>
+	for NarrowOriginToSibling<Inner>
+{
+	fn is_paused(origin: &AggregateMessageOrigin) -> bool {
+		match origin {
+			AggregateMessageOrigin::Sibling(id) => Inner::is_paused(id),
+			_ => false,
+		}
+	}
+}
+
+impl<Inner: OnQueueChanged<ParaId>> OnQueueChanged<AggregateMessageOrigin>
+	for NarrowOriginToSibling<Inner>
+{
+	fn on_queue_changed(origin: AggregateMessageOrigin, fp: QueueFootprint) {
+		if let AggregateMessageOrigin::Sibling(id) = origin {
+			Inner::on_queue_changed(id, fp)
+		}
+	}
+}
+
+/// Convert a sibling `ParaId` to an `AggregateMessageOrigin`.
+pub struct ParaIdToSibling;
+impl sp_runtime::traits::Convert<ParaId, AggregateMessageOrigin> for ParaIdToSibling {
+	fn convert(para_id: ParaId) -> AggregateMessageOrigin {
+		AggregateMessageOrigin::Sibling(para_id)
+	}
+}

cumulus/parachains/runtimes/testing/penpal/Cargo.toml

@@ -78,10 +78,13 @@ cumulus-primitives-utility = { path = "../../../../primitives/utility", default-
 pallet-collator-selection = { path = "../../../../pallets/collator-selection", default-features = false }
 parachain-info = { package = "staging-parachain-info", path = "../../../pallets/parachain-info", default-features = false }
 parachains-common = { path = "../../../common", default-features = false }
+assets-common = { path = "../../assets/common", default-features = false }
+snowbridge-rococo-common = { path = "../../../../../bridges/snowbridge/parachain/runtime/rococo-common", default-features = false }
 
 [features]
 default = ["std"]
 std = [
+	"assets-common/std",
 	"codec/std",
 	"cumulus-pallet-aura-ext/std",
 	"cumulus-pallet-dmp-queue/std",
@@ -118,6 +121,7 @@ std = [
 	"polkadot-primitives/std",
 	"polkadot-runtime-common/std",
 	"scale-info/std",
+	"snowbridge-rococo-common/std",
 	"sp-api/std",
 	"sp-block-builder/std",
 	"sp-consensus-aura/std",
@@ -138,6 +142,7 @@ std = [
 ]
 
 runtime-benchmarks = [
+	"assets-common/runtime-benchmarks",
 	"cumulus-pallet-dmp-queue/runtime-benchmarks",
 	"cumulus-pallet-parachain-system/runtime-benchmarks",
 	"cumulus-pallet-session-benchmarking/runtime-benchmarks",
@@ -161,6 +166,7 @@ runtime-benchmarks = [
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-primitives/runtime-benchmarks",
 	"polkadot-runtime-common/runtime-benchmarks",
+	"snowbridge-rococo-common/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",

cumulus/parachains/runtimes/testing/penpal/src/lib.rs

@@ -32,6 +32,7 @@ include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 mod weights;
 pub mod xcm_config;
 
+use assets_common::MultiLocationForAssetId;
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
 use cumulus_primitives_core::{AggregateMessageOrigin, ParaId};
 use frame_support::{
@@ -458,6 +459,41 @@ impl pallet_assets::Config<pallet_assets::Instance1> for Runtime {
 	type BenchmarkHelper = ();
 }
 
+parameter_types! {
+	// we just reuse the same deposits
+	pub const ForeignAssetsAssetDeposit: Balance = AssetDeposit::get();
+	pub const ForeignAssetsAssetAccountDeposit: Balance = AssetAccountDeposit::get();
+	pub const ForeignAssetsApprovalDeposit: Balance = ApprovalDeposit::get();
+	pub const ForeignAssetsAssetsStringLimit: u32 = AssetsStringLimit::get();
+	pub const ForeignAssetsMetadataDepositBase: Balance = MetadataDepositBase::get();
+	pub const ForeignAssetsMetadataDepositPerByte: Balance = MetadataDepositPerByte::get();
+}
+
+/// Another pallet assets instance to store foreign assets from bridgehub.
+pub type ForeignAssetsInstance = pallet_assets::Instance2;
+impl pallet_assets::Config<ForeignAssetsInstance> for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type Balance = Balance;
+	type AssetId = MultiLocationForAssetId;
+	type AssetIdParameter = MultiLocationForAssetId;
+	type Currency = Balances;
+	type CreateOrigin = AsEnsureOriginWithArg<EnsureSigned<AccountId>>;
+	type ForceOrigin = EnsureRoot<AccountId>;
+	type AssetDeposit = ForeignAssetsAssetDeposit;
+	type MetadataDepositBase = ForeignAssetsMetadataDepositBase;
+	type MetadataDepositPerByte = ForeignAssetsMetadataDepositPerByte;
+	type ApprovalDeposit = ForeignAssetsApprovalDeposit;
+	type StringLimit = ForeignAssetsAssetsStringLimit;
+	type Freezer = ();
+	type Extra = ();
+	type WeightInfo = pallet_assets::weights::SubstrateWeight<Runtime>;
+	type CallbackHandle = ();
+	type AssetAccountDeposit = ForeignAssetsAssetAccountDeposit;
+	type RemoveItemsLimit = frame_support::traits::ConstU32<1000>;
+	#[cfg(feature = "runtime-benchmarks")]
+	type BenchmarkHelper = xcm_config::XcmBenchmarkHelper;
+}
+
 parameter_types! {
 	pub const ReservedXcmpWeight: Weight = MAXIMUM_BLOCK_WEIGHT.saturating_div(4);
 	pub const ReservedDmpWeight: Weight = MAXIMUM_BLOCK_WEIGHT.saturating_div(4);
@@ -626,6 +662,7 @@ construct_runtime!(
 
 		// The main stage.
 		Assets: pallet_assets::<Instance1>::{Pallet, Call, Storage, Event<T>} = 50,
+		ForeignAssets: pallet_assets::<Instance2>::{Pallet, Call, Storage, Event<T>} = 51,
 
 		Sudo: pallet_sudo::{Pallet, Call, Storage, Event<T>, Config<T>} = 255,
 	}

cumulus/parachains/runtimes/testing/penpal/src/xcm_config.rs

@@ -24,8 +24,8 @@
 //! soon.
 use super::{
 	AccountId, AllPalletsWithSystem, AssetId as AssetIdPalletAssets, Assets, Balance, Balances,
-	ParachainInfo, ParachainSystem, PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
-	WeightToFee, XcmpQueue,
+	ForeignAssets, ParachainInfo, ParachainSystem, PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent,
+	RuntimeOrigin, WeightToFee, XcmpQueue,
 };
 use core::marker::PhantomData;
 use frame_support::{
@@ -42,18 +42,19 @@ use pallet_assets::Instance1;
 use pallet_xcm::XcmPassthrough;
 use polkadot_parachain_primitives::primitives::Sibling;
 use polkadot_runtime_common::impls::ToAuthor;
+use snowbridge_rococo_common::EthereumNetwork;
 use sp_runtime::traits::Zero;
 use xcm::latest::prelude::*;
 #[allow(deprecated)]
-use xcm_builder::CurrencyAdapter;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
 	AllowSubscriptionsFrom, AllowTopLevelPaidExecutionFrom, AsPrefixedGeneralIndex,
-	ConvertedConcreteId, DenyReserveTransferToRelayChain, DenyThenTry, EnsureXcmOrigin,
-	FixedWeightBounds, FungiblesAdapter, IsConcrete, LocalMint, NativeAsset, ParentAsSuperuser,
-	ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative, SiblingParachainConvertsVia,
-	SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit,
-	TrailingSetTopicAsId, UsingComponents, WithComputedOrigin, WithUniqueTopic,
+	ConvertedConcreteId, CurrencyAdapter, DenyReserveTransferToRelayChain, DenyThenTry,
+	EnsureXcmOrigin, FixedWeightBounds, FungiblesAdapter, IsConcrete, LocalMint, NativeAsset,
+	NoChecking, ParentAsSuperuser, ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative,
+	SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
+	SovereignSignedViaLocation, StartsWith, TakeWeightCredit, TrailingSetTopicAsId,
+	UsingComponents, WithComputedOrigin, WithUniqueTopic,
 };
 use xcm_executor::{traits::JustTry, XcmExecutor};
 
@@ -125,8 +126,28 @@ pub type FungiblesTransactor = FungiblesAdapter<
 	CheckingAccount,
 >;
 
+/// `AssetId/Balance` converter for `TrustBackedAssets`
+pub type ForeignAssetsConvertedConcreteId =
+	assets_common::ForeignAssetsConvertedConcreteId<StartsWith<RelayLocation>, Balance>;
+
+/// Means for transacting foreign assets from different global consensus.
+pub type ForeignFungiblesTransactor = FungiblesAdapter<
+	// Use this fungibles implementation:
+	ForeignAssets,
+	// Use this currency when it is a fungible asset matching the given location or name:
+	ForeignAssetsConvertedConcreteId,
+	// Convert an XCM MultiLocation into a local account id:
+	LocationToAccountId,
+	// Our chain's account ID type (we can't get away without mentioning it explicitly):
+	AccountId,
+	// We dont need to check teleports here.
+	NoChecking,
+	// The account to use for tracking teleports.
+	CheckingAccount,
+>;
+
 /// Means for transacting assets on this chain.
-pub type AssetTransactors = (CurrencyTransactor, FungiblesTransactor);
+pub type AssetTransactors = (CurrencyTransactor, ForeignFungiblesTransactor, FungiblesTransactor);
 
 /// This is the type we use to convert an (incoming) XCM origin into a local `Origin` instance,
 /// ready for dispatching a transaction with Xcm's `Transact`. There is an `OriginKind` which can
@@ -202,16 +223,22 @@ pub type Barrier = TrailingSetTopicAsId<
 pub type AccountIdOf<R> = <R as frame_system::Config>::AccountId;
 
 /// Asset filter that allows all assets from a certain location matching asset id.
-pub struct AssetsFrom<T>(PhantomData<T>);
-impl<T: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation> for AssetsFrom<T> {
+pub struct AssetPrefixFrom<Prefix, Origin>(PhantomData<(Prefix, Origin)>);
+impl<Prefix, Origin> ContainsPair<MultiAsset, MultiLocation> for AssetPrefixFrom<Prefix, Origin>
+where
+	Prefix: Get<MultiLocation>,
+	Origin: Get<MultiLocation>,
+{
 	fn contains(asset: &MultiAsset, origin: &MultiLocation) -> bool {
-		let loc = T::get();
+		let loc = Origin::get();
 		&loc == origin &&
 			matches!(asset, MultiAsset { id: AssetId::Concrete(asset_loc), fun: Fungible(_a) }
-			if asset_loc.starts_with(&loc))
+			if asset_loc.starts_with(&Prefix::get()))
 	}
 }
 
+type AssetsFrom<T> = AssetPrefixFrom<T, T>;
+
 /// Asset filter that allows native/relay asset if coming from a certain location.
 pub struct NativeAssetFrom<T>(PhantomData<T>);
 impl<T: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation> for NativeAssetFrom<T> {
@@ -267,6 +294,7 @@ parameter_types! {
 		0,
 		X2(PalletInstance(50), GeneralIndex(TELEPORTABLE_ASSET_ID.into()))
 	);
+	pub EthereumLocation: MultiLocation = MultiLocation::new(2, X1(GlobalConsensus(EthereumNetwork::get())));
 }
 
 /// Accepts asset with ID `AssetLocation` and is coming from `Origin` chain.
@@ -280,8 +308,12 @@ impl<AssetLocation: Get<MultiLocation>, Origin: Get<MultiLocation>>
 	}
 }
 
-pub type Reserves =
-	(NativeAsset, AssetsFrom<SystemAssetHubLocation>, NativeAssetFrom<SystemAssetHubLocation>);
+pub type Reserves = (
+	NativeAsset,
+	AssetsFrom<SystemAssetHubLocation>,
+	NativeAssetFrom<SystemAssetHubLocation>,
+	AssetPrefixFrom<EthereumLocation, SystemAssetHubLocation>,
+);
 pub type TrustedTeleporters =
 	(AssetFromChain<LocalTeleportableToAssetHub, SystemAssetHubLocation>,);
 
@@ -362,3 +394,12 @@ impl cumulus_pallet_xcm::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
 }
+
+/// Simple conversion of `u32` into an `AssetId` for use in benchmarking.
+pub struct XcmBenchmarkHelper;
+#[cfg(feature = "runtime-benchmarks")]
+impl pallet_assets::BenchmarkHelper<MultiLocation> for XcmBenchmarkHelper {
+	fn create_asset_id_parameter(id: u32) -> MultiLocation {
+		MultiLocation { parents: 1, interior: X1(Parachain(id)) }
+	}
+}