Update Rococo/Wococo version + prepare relay for Rococo<>Wococo bridge (#1241)

* update Rococo version + create relayers fund account

* start finality relay guards when complex relay is started

bridges/primitives/chain-rococo/src/lib.rs

@@ -44,7 +44,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	spec_name: sp_version::create_runtime_str!("rococo"),
 	impl_name: sp_version::create_runtime_str!("parity-rococo-v1.6"),
 	authoring_version: 0,
-	spec_version: 9100,
+	spec_version: 9130,
 	impl_version: 0,
 	apis: sp_version::create_apis_vec![[]],
 	transaction_version: 0,
@@ -105,6 +105,9 @@ pub const FROM_ROCOCO_LATEST_CONFIRMED_NONCE_METHOD: &str =
 pub const FROM_ROCOCO_UNREWARDED_RELAYERS_STATE: &str =
 	"FromRococoInboundLaneApi_unrewarded_relayers_state";
 
+/// Existential deposit on Rococo.
+pub const EXISTENTIAL_DEPOSIT: Balance = 1_000_000_000_000 / 100;
+
 /// Weight of pay-dispatch-fee operation for inbound messages at Rococo chain.
 ///
 /// This value corresponds to the result of

bridges/primitives/chain-wococo/src/lib.rs

@@ -25,7 +25,9 @@ use sp_std::prelude::*;
 
 pub use bp_polkadot_core::*;
 // Rococo runtime = Wococo runtime
-pub use bp_rococo::{WeightToFee, PAY_INBOUND_DISPATCH_FEE_WEIGHT, SESSION_LENGTH, VERSION};
+pub use bp_rococo::{
+	WeightToFee, EXISTENTIAL_DEPOSIT, PAY_INBOUND_DISPATCH_FEE_WEIGHT, SESSION_LENGTH, VERSION,
+};
 
 /// Wococo Chain
 pub type Wococo = PolkadotLike;

bridges/relays/bin-substrate/src/cli/relay_headers_and_messages.rs

@@ -29,12 +29,13 @@ use strum::VariantNames;
 use codec::Encode;
 use messages_relay::relay_strategy::MixStrategy;
 use relay_substrate_client::{
-	AccountIdOf, Chain, Client, TransactionSignScheme, UnsignedTransaction,
+	AccountIdOf, CallOf, Chain, Client, TransactionSignScheme, UnsignedTransaction,
 };
 use relay_utils::metrics::MetricsParams;
 use sp_core::{Bytes, Pair};
 use substrate_relay_helper::{
-	messages_lane::MessagesRelayParams, on_demand_headers::OnDemandHeadersRelay,
+	finality_pipeline::SubstrateFinalitySyncPipeline, messages_lane::MessagesRelayParams,
+	on_demand_headers::OnDemandHeadersRelay,
 };
 
 use crate::{
@@ -138,8 +139,8 @@ macro_rules! select_bridge {
 
 				use crate::chains::{
 					millau_messages_to_rialto::{
-						standalone_metrics as left_to_right_standalone_metrics,
 						run as left_to_right_messages,
+						standalone_metrics as left_to_right_standalone_metrics,
 						update_rialto_to_millau_conversion_rate as update_right_to_left_conversion_rate,
 					},
 					rialto_messages_to_millau::{
@@ -187,12 +188,10 @@ macro_rules! select_bridge {
 
 				use crate::chains::{
 					rococo_messages_to_wococo::{
-						standalone_metrics as left_to_right_standalone_metrics,
 						run as left_to_right_messages,
+						standalone_metrics as left_to_right_standalone_metrics,
 					},
-					wococo_messages_to_rococo::{
-						run as right_to_left_messages,
-					},
+					wococo_messages_to_rococo::run as right_to_left_messages,
 				};
 
 				async fn update_right_to_left_conversion_rate(
@@ -212,19 +211,39 @@ macro_rules! select_bridge {
 				}
 
 				async fn left_create_account(
-					_left_client: Client<Left>,
-					_left_sign: <Left as TransactionSignScheme>::AccountKeyPair,
-					_account_id: AccountIdOf<Left>,
+					left_client: Client<Left>,
+					left_sign: <Left as TransactionSignScheme>::AccountKeyPair,
+					account_id: AccountIdOf<Left>,
 				) -> anyhow::Result<()> {
-					Err(anyhow::format_err!("Account creation is not supported by this bridge"))
+					submit_signed_extrinsic(
+						left_client,
+						left_sign,
+						relay_rococo_client::runtime::Call::Balances(
+							relay_rococo_client::runtime::BalancesCall::transfer(
+								bp_rococo::AccountAddress::Id(account_id),
+								bp_rococo::EXISTENTIAL_DEPOSIT.into(),
+							),
+						),
+					)
+					.await
 				}
 
 				async fn right_create_account(
-					_right_client: Client<Right>,
-					_right_sign: <Right as TransactionSignScheme>::AccountKeyPair,
-					_account_id: AccountIdOf<Right>,
+					right_client: Client<Right>,
+					right_sign: <Right as TransactionSignScheme>::AccountKeyPair,
+					account_id: AccountIdOf<Right>,
 				) -> anyhow::Result<()> {
-					Err(anyhow::format_err!("Account creation is not supported by this bridge"))
+					submit_signed_extrinsic(
+						right_client,
+						right_sign,
+						relay_wococo_client::runtime::Call::Balances(
+							relay_wococo_client::runtime::BalancesCall::transfer(
+								bp_wococo::AccountAddress::Id(account_id),
+								bp_wococo::EXISTENTIAL_DEPOSIT.into(),
+							),
+						),
+					)
+					.await
 				}
 
 				$generic
@@ -250,8 +269,8 @@ macro_rules! select_bridge {
 
 				use crate::chains::{
 					kusama_messages_to_polkadot::{
-						standalone_metrics as left_to_right_standalone_metrics,
 						run as left_to_right_messages,
+						standalone_metrics as left_to_right_standalone_metrics,
 						update_polkadot_to_kusama_conversion_rate as update_right_to_left_conversion_rate,
 					},
 					polkadot_messages_to_kusama::{
@@ -265,29 +284,17 @@ macro_rules! select_bridge {
 					left_sign: <Left as TransactionSignScheme>::AccountKeyPair,
 					account_id: AccountIdOf<Left>,
 				) -> anyhow::Result<()> {
-					let left_genesis_hash = *left_client.genesis_hash();
-					left_client
-						.submit_signed_extrinsic(
-							left_sign.public().into(),
-							move |_, transaction_nonce| {
-								Bytes(
-									Left::sign_transaction(left_genesis_hash, &left_sign, relay_substrate_client::TransactionEra::immortal(),
-										UnsignedTransaction::new(
+					submit_signed_extrinsic(
+						left_client,
+						left_sign,
 						relay_kusama_client::runtime::Call::Balances(
 							relay_kusama_client::runtime::BalancesCall::transfer(
 								bp_kusama::AccountAddress::Id(account_id),
 								bp_kusama::EXISTENTIAL_DEPOSIT.into(),
 							),
 						),
-											transaction_nonce,
-										),
-									).encode()
-								)
-							},
 					)
 					.await
-						.map(drop)
-						.map_err(|e| anyhow::format_err!("{}", e))
 				}
 
 				async fn right_create_account(
@@ -295,29 +302,17 @@ macro_rules! select_bridge {
 					right_sign: <Right as TransactionSignScheme>::AccountKeyPair,
 					account_id: AccountIdOf<Right>,
 				) -> anyhow::Result<()> {
-					let right_genesis_hash = *right_client.genesis_hash();
-					right_client
-						.submit_signed_extrinsic(
-							right_sign.public().into(),
-							move |_, transaction_nonce| {
-								Bytes(
-									Right::sign_transaction(right_genesis_hash, &right_sign, relay_substrate_client::TransactionEra::immortal(),
-										UnsignedTransaction::new(
+					submit_signed_extrinsic(
+						right_client,
+						right_sign,
 						relay_polkadot_client::runtime::Call::Balances(
 							relay_polkadot_client::runtime::BalancesCall::transfer(
 								bp_polkadot::AccountAddress::Id(account_id),
 								bp_polkadot::EXISTENTIAL_DEPOSIT.into(),
 							),
 						),
-											transaction_nonce,
-										),
-									).encode()
-								)
-							},
 					)
 					.await
-						.map(drop)
-						.map_err(|e| anyhow::format_err!("{}", e))
 				}
 
 				$generic
@@ -494,11 +489,17 @@ impl RelayHeadersAndMessages {
 			}
 
 			// start on-demand header relays
+			let left_to_right_finality =
+				LeftToRightFinality::new(right_client.clone(), right_sign.clone());
+			let right_to_left_finality =
+				RightToLeftFinality::new(left_client.clone(), left_sign.clone());
+			left_to_right_finality.start_relay_guards();
+			right_to_left_finality.start_relay_guards();
 			let left_to_right_on_demand_headers = OnDemandHeadersRelay::new(
 				left_client.clone(),
 				right_client.clone(),
 				right_transactions_mortality,
-				LeftToRightFinality::new(right_client.clone(), right_sign.clone()),
+				left_to_right_finality,
 				MAX_MISSING_LEFT_HEADERS_AT_RIGHT,
 				params.shared.only_mandatory_headers,
 			);
@@ -506,7 +507,7 @@ impl RelayHeadersAndMessages {
 				right_client.clone(),
 				left_client.clone(),
 				left_transactions_mortality,
-				RightToLeftFinality::new(left_client.clone(), left_sign.clone()),
+				right_to_left_finality,
 				MAX_MISSING_RIGHT_HEADERS_AT_LEFT,
 				params.shared.only_mandatory_headers,
 			);
@@ -561,3 +562,31 @@ impl RelayHeadersAndMessages {
 		})
 	}
 }
+
+/// Sign and submit transaction with given call to the chain.
+async fn submit_signed_extrinsic<C: Chain + TransactionSignScheme<Chain = C>>(
+	client: Client<C>,
+	sign: C::AccountKeyPair,
+	call: CallOf<C>,
+) -> anyhow::Result<()>
+where
+	AccountIdOf<C>: From<<<C as TransactionSignScheme>::AccountKeyPair as Pair>::Public>,
+	CallOf<C>: Send,
+{
+	let genesis_hash = *client.genesis_hash();
+	client
+		.submit_signed_extrinsic(sign.public().into(), move |_, transaction_nonce| {
+			Bytes(
+				C::sign_transaction(
+					genesis_hash,
+					&sign,
+					relay_substrate_client::TransactionEra::immortal(),
+					UnsignedTransaction::new(call, transaction_nonce),
+				)
+				.encode(),
+			)
+		})
+		.await
+		.map(drop)
+		.map_err(|e| anyhow::format_err!("{}", e))
+}

bridges/relays/client-rococo/src/runtime.rs

@@ -17,9 +17,9 @@
 //! Types that are specific to the Rococo runtime.
 
 use bp_messages::{LaneId, UnrewardedRelayersState};
-use bp_polkadot_core::PolkadotLike;
+use bp_polkadot_core::{AccountAddress, Balance, PolkadotLike};
 use bp_runtime::Chain;
-use codec::{Decode, Encode};
+use codec::{Compact, Decode, Encode};
 use frame_support::weights::Weight;
 use scale_info::TypeInfo;
 
@@ -66,6 +66,9 @@ pub enum Call {
 	/// System pallet.
 	#[codec(index = 0)]
 	System(SystemCall),
+	/// Balances pallet.
+	#[codec(index = 4)]
+	Balances(BalancesCall),
 	/// Wococo bridge pallet.
 	#[codec(index = 41)]
 	BridgeGrandpaWococo(BridgeGrandpaWococoCall),
@@ -81,6 +84,13 @@ pub enum SystemCall {
 	remark(Vec<u8>),
 }
 
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, TypeInfo)]
+#[allow(non_camel_case_types)]
+pub enum BalancesCall {
+	#[codec(index = 0)]
+	transfer(AccountAddress, Compact<Balance>),
+}
+
 #[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, TypeInfo)]
 #[allow(non_camel_case_types)]
 pub enum BridgeGrandpaWococoCall {

bridges/relays/client-wococo/src/runtime.rs

@@ -17,9 +17,9 @@
 //! Types that are specific to the Wococo runtime.
 
 use bp_messages::{LaneId, UnrewardedRelayersState};
-use bp_polkadot_core::PolkadotLike;
+use bp_polkadot_core::{AccountAddress, Balance, PolkadotLike};
 use bp_runtime::Chain;
-use codec::{Decode, Encode};
+use codec::{Compact, Decode, Encode};
 use frame_support::weights::Weight;
 use scale_info::TypeInfo;
 
@@ -66,6 +66,9 @@ pub enum Call {
 	/// System pallet.
 	#[codec(index = 0)]
 	System(SystemCall),
+	/// Balances pallet.
+	#[codec(index = 4)]
+	Balances(BalancesCall),
 	/// Rococo bridge pallet.
 	#[codec(index = 40)]
 	BridgeGrandpaRococo(BridgeGrandpaRococoCall),
@@ -81,6 +84,13 @@ pub enum SystemCall {
 	remark(Vec<u8>),
 }
 
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, TypeInfo)]
+#[allow(non_camel_case_types)]
+pub enum BalancesCall {
+	#[codec(index = 0)]
+	transfer(AccountAddress, Compact<Balance>),
+}
+
 #[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, TypeInfo)]
 #[allow(non_camel_case_types)]
 pub enum BridgeGrandpaRococoCall {