diff --git a/Cargo.lock b/Cargo.lock
index 587fa692b8ea..940c686c924f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -723,6 +723,16 @@ dependencies = [
"sp-std",
]
+[[package]]
+name = "bp-message-dispatch"
+version = "0.1.0"
+dependencies = [
+ "bp-runtime",
+ "frame-support",
+ "parity-scale-codec",
+ "sp-std",
+]
+
[[package]]
name = "bp-messages"
version = "0.1.0"
@@ -754,6 +764,20 @@ dependencies = [
"sp-version",
]
+[[package]]
+name = "bp-rialto"
+version = "0.1.0"
+dependencies = [
+ "bp-messages",
+ "bp-runtime",
+ "frame-support",
+ "frame-system",
+ "sp-api",
+ "sp-core",
+ "sp-runtime",
+ "sp-std",
+]
+
[[package]]
name = "bp-rococo"
version = "0.1.0"
@@ -814,6 +838,28 @@ dependencies = [
"sp-std",
]
+[[package]]
+name = "bridge-runtime-common"
+version = "0.1.0"
+dependencies = [
+ "bp-message-dispatch",
+ "bp-messages",
+ "bp-runtime",
+ "ed25519-dalek",
+ "frame-support",
+ "hash-db",
+ "pallet-bridge-dispatch",
+ "pallet-bridge-grandpa",
+ "pallet-bridge-messages",
+ "pallet-transaction-payment",
+ "parity-scale-codec",
+ "sp-core",
+ "sp-runtime",
+ "sp-state-machine",
+ "sp-std",
+ "sp-trie",
+]
+
[[package]]
name = "bs58"
version = "0.4.0"
@@ -4661,6 +4707,23 @@ dependencies = [
"sp-std",
]
+[[package]]
+name = "pallet-bridge-dispatch"
+version = "0.1.0"
+dependencies = [
+ "bp-message-dispatch",
+ "bp-runtime",
+ "frame-support",
+ "frame-system",
+ "log",
+ "parity-scale-codec",
+ "serde",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+]
+
[[package]]
name = "pallet-bridge-grandpa"
version = "0.1.0"
@@ -4683,6 +4746,31 @@ dependencies = [
"sp-trie",
]
+[[package]]
+name = "pallet-bridge-messages"
+version = "0.1.0"
+dependencies = [
+ "bitvec",
+ "bp-message-dispatch",
+ "bp-messages",
+ "bp-rialto",
+ "bp-runtime",
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "hex",
+ "hex-literal",
+ "log",
+ "num-traits",
+ "pallet-balances",
+ "parity-scale-codec",
+ "serde",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+]
+
[[package]]
name = "pallet-collective"
version = "3.0.0"
@@ -7643,8 +7731,11 @@ name = "rococo-runtime"
version = "0.9.7"
dependencies = [
"beefy-primitives",
+ "bp-messages",
"bp-rococo",
+ "bp-runtime",
"bp-wococo",
+ "bridge-runtime-common",
"frame-executive",
"frame-support",
"frame-system",
@@ -7657,7 +7748,9 @@ dependencies = [
"pallet-babe",
"pallet-balances",
"pallet-beefy",
+ "pallet-bridge-dispatch",
"pallet-bridge-grandpa",
+ "pallet-bridge-messages",
"pallet-collective",
"pallet-grandpa",
"pallet-im-online",
diff --git a/node/service/src/chain_spec.rs b/node/service/src/chain_spec.rs
index 676762b7e536..062f26b01b67 100644
--- a/node/service/src/chain_spec.rs
+++ b/node/service/src/chain_spec.rs
@@ -989,6 +989,14 @@ fn rococo_staging_testnet_config_genesis(wasm_binary: &[u8]) -> rococo_runtime::
owner: Some(endowed_accounts[0].clone()),
..Default::default()
},
+ bridge_rococo_messages: rococo_runtime::BridgeRococoMessagesConfig {
+ owner: Some(endowed_accounts[0].clone()),
+ ..Default::default()
+ },
+ bridge_wococo_messages: rococo_runtime::BridgeWococoMessagesConfig {
+ owner: Some(endowed_accounts[0].clone()),
+ ..Default::default()
+ },
}
}
@@ -1526,6 +1534,14 @@ pub fn rococo_testnet_genesis(
owner: Some(root_key.clone()),
..Default::default()
},
+ bridge_rococo_messages: rococo_runtime::BridgeRococoMessagesConfig {
+ owner: Some(root_key.clone()),
+ ..Default::default()
+ },
+ bridge_wococo_messages: rococo_runtime::BridgeWococoMessagesConfig {
+ owner: Some(root_key.clone()),
+ ..Default::default()
+ },
}
}
diff --git a/runtime/rococo/Cargo.toml b/runtime/rococo/Cargo.toml
index c44fd26aa27d..77678df4f203 100644
--- a/runtime/rococo/Cargo.toml
+++ b/runtime/rococo/Cargo.toml
@@ -69,9 +69,14 @@ xcm-builder = { package = "xcm-builder", path = "../../xcm/xcm-builder", default
pallet-xcm = { path = "../../xcm/pallet-xcm", default-features = false }
# Bridge Dependencies
+bp-messages = { path = "../../bridges/primitives/messages", default-features = false }
bp-rococo = { path = "../../bridges/primitives/chain-rococo", default-features = false }
+bp-runtime = { path = "../../bridges/primitives/runtime", default-features = false }
bp-wococo = { path = "../../bridges/primitives/chain-wococo", default-features = false }
+bridge-runtime-common = { path = "../../bridges/bin/runtime-common", default-features = false }
+pallet-bridge-dispatch = { path = "../../bridges/modules/dispatch", default-features = false }
pallet-bridge-grandpa = { path = "../../bridges/modules/grandpa", default-features = false }
+pallet-bridge-messages = { path = "../../bridges/modules/messages", default-features = false }
max-encoded-len = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -84,8 +89,11 @@ no_std = []
std = [
"authority-discovery-primitives/std",
"babe-primitives/std",
+ "bp-messages/std",
"bp-rococo/std",
+ "bp-runtime/std",
"bp-wococo/std",
+ "bridge-runtime-common/std",
"parity-scale-codec/std",
"frame-executive/std",
"pallet-authority-discovery/std",
@@ -93,7 +101,9 @@ std = [
"pallet-babe/std",
"beefy-primitives/std",
"pallet-balances/std",
+ "pallet-bridge-dispatch/std",
"pallet-bridge-grandpa/std",
+ "pallet-bridge-messages/std",
"pallet-collective/std",
"pallet-beefy/std",
"pallet-grandpa/std",
diff --git a/runtime/rococo/src/bridge_messages.rs b/runtime/rococo/src/bridge_messages.rs
new file mode 100644
index 000000000000..93e7314c737d
--- /dev/null
+++ b/runtime/rococo/src/bridge_messages.rs
@@ -0,0 +1,410 @@
+// Copyright 2020 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot 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.
+
+// Polkadot 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 Polkadot. If not, see .
+
+//! Over-bridge messaging support for Rococo <> Wococo bridge.
+
+pub use self::{at_rococo::*, at_wococo::*};
+
+use bp_messages::{
+ source_chain::TargetHeaderChain,
+ target_chain::{ProvedMessages, SourceHeaderChain},
+ InboundLaneData, LaneId, Message, MessageNonce,
+};
+use bp_rococo::{EXTRA_STORAGE_PROOF_SIZE, MAXIMAL_ENCODED_ACCOUNT_ID_SIZE, max_extrinsic_size, max_extrinsic_weight};
+use bp_runtime::{ROCOCO_CHAIN_ID, WOCOCO_CHAIN_ID, ChainId};
+use bridge_runtime_common::messages::{
+ BridgedChainWithMessages, ChainWithMessages, MessageBridge, MessageTransaction, ThisChainWithMessages,
+ source as messages_source, target as messages_target,
+};
+use frame_support::{traits::Get, weights::{Weight, WeightToFeePolynomial}, RuntimeDebug};
+use sp_std::{convert::TryFrom, marker::PhantomData, ops::RangeInclusive};
+
+/// Maximal number of pending outbound messages.
+const MAXIMAL_PENDING_MESSAGES_AT_OUTBOUND_LANE: MessageNonce = bp_rococo::MAX_UNCONFIRMED_MESSAGES_AT_INBOUND_LANE;
+/// Maximal weight of single message delivery confirmation transaction on Rococo/Wococo chain.
+///
+/// This value is a result of `pallet_bridge_messages::Pallet::receive_messages_delivery_proof` weight formula
+/// computation for the case when single message is confirmed. The result then must be rounded up to account
+/// possible future runtime upgrades.
+const MAX_SINGLE_MESSAGE_DELIVERY_CONFIRMATION_TX_WEIGHT: Weight = 2_000_000_000;
+/// Increase of delivery transaction weight on Rococo/Wococo chain with every additional message byte.
+///
+/// This value is a result of `pallet_bridge_messages::WeightInfoExt::storage_proof_size_overhead(1)` call. The
+/// result then must be rounded up to account possible future runtime upgrades.
+const ADDITIONAL_MESSAGE_BYTE_DELIVERY_WEIGHT: Weight = 25_000;
+/// Weight of single regular message delivery transaction on Rococo/Wococo chain.
+///
+/// This value is a result of `pallet_bridge_messages::Pallet::receive_messages_proof_weight()` call
+/// for the case when single message of `pallet_bridge_messages::EXPECTED_DEFAULT_MESSAGE_LENGTH` bytes is delivered.
+/// The message must have dispatch weight set to zero. The result then must be rounded up to account
+/// possible future runtime upgrades.
+const DEFAULT_MESSAGE_DELIVERY_TX_WEIGHT: Weight = 1_500_000_000;
+/// Weight of pay-dispatch-fee operation for inbound messages at Rococo/Wococo chain.
+///
+/// This value corresponds to the result of `pallet_bridge_messages::WeightInfoExt::pay_inbound_dispatch_fee_overhead()`
+/// call for your chain. Don't put too much reserve there, because it is used to **decrease**
+/// `DEFAULT_MESSAGE_DELIVERY_TX_WEIGHT` cost. So putting large reserve would make delivery transactions cheaper.
+const PAY_INBOUND_DISPATCH_FEE_WEIGHT: Weight = 600_000_000;
+/// Number of bytes, included in the signed Rococo/Wococo transaction apart from the encoded call itself.
+///
+/// Can be computed by subtracting encoded call size from raw transaction size.
+const TX_EXTRA_BYTES: u32 = 130;
+
+/// Rococo chain as it is seen at Rococo.
+pub type RococoAtRococo = RococoLikeChain;
+
+/// Rococo chain as it is seen at Wococo.
+pub type RococoAtWococo = RococoLikeChain;
+
+/// Wococo chain as it is seen at Wococo.
+pub type WococoAtWococo = RococoLikeChain;
+
+/// Wococo chain as it is seen at Rococo.
+pub type WococoAtRococo = RococoLikeChain;
+
+/// Rococo/Wococo chain from message lane point of view.
+#[derive(RuntimeDebug, Clone, Copy)]
+pub struct RococoLikeChain {
+ _bridge_definition: PhantomData,
+ _at_this_chain_grandpa_pallet_instance: PhantomData,
+}
+
+impl ChainWithMessages for RococoLikeChain {
+ type Hash = crate::Hash;
+ type AccountId = crate::AccountId;
+ type Signer = primitives::v1::AccountPublic;
+ type Signature = crate::Signature;
+ type Weight = Weight;
+ type Balance = crate::Balance;
+}
+
+impl ThisChainWithMessages for RococoLikeChain {
+ type Call = crate::Call;
+
+ fn is_outbound_lane_enabled(lane: &LaneId) -> bool {
+ *lane == [0, 0, 0, 0]
+ }
+
+ fn maximal_pending_messages_at_outbound_lane() -> MessageNonce {
+ MAXIMAL_PENDING_MESSAGES_AT_OUTBOUND_LANE
+ }
+
+ fn estimate_delivery_confirmation_transaction() -> MessageTransaction {
+ let inbound_data_size = InboundLaneData::::encoded_size_hint(
+ MAXIMAL_ENCODED_ACCOUNT_ID_SIZE,
+ 1,
+ 1,
+ )
+ .unwrap_or(u32::MAX);
+
+ MessageTransaction {
+ dispatch_weight: MAX_SINGLE_MESSAGE_DELIVERY_CONFIRMATION_TX_WEIGHT,
+ size: inbound_data_size
+ .saturating_add(EXTRA_STORAGE_PROOF_SIZE)
+ .saturating_add(TX_EXTRA_BYTES),
+ }
+ }
+
+ fn transaction_payment(transaction: MessageTransaction) -> crate::Balance {
+ // current fee multiplier is used here
+ bridge_runtime_common::messages::transaction_payment(
+ crate::BlockWeights::get().get(frame_support::weights::DispatchClass::Normal).base_extrinsic,
+ crate::TransactionByteFee::get(),
+ pallet_transaction_payment::Pallet::::next_fee_multiplier(),
+ |weight| crate::constants::fee::WeightToFee::calc(&weight),
+ transaction,
+ )
+ }
+}
+
+impl BridgedChainWithMessages for RococoLikeChain {
+ fn maximal_extrinsic_size() -> u32 {
+ max_extrinsic_size()
+ }
+
+ fn message_weight_limits(_message_payload: &[u8]) -> RangeInclusive {
+ // we don't want to relay too large messages + keep reserve for future upgrades
+ let upper_limit = messages_target::maximal_incoming_message_dispatch_weight(max_extrinsic_weight());
+
+ // we're charging for payload bytes in `With(Wococo | Rococo)MessageBridge::transaction_payment` function
+ //
+ // this bridge may be used to deliver all kind of messages, so we're not making any assumptions about
+ // minimal dispatch weight here
+
+ 0..=upper_limit
+ }
+
+ fn estimate_delivery_transaction(
+ message_payload: &[u8],
+ include_pay_dispatch_fee_cost: bool,
+ message_dispatch_weight: Weight,
+ ) -> MessageTransaction {
+ let message_payload_len = u32::try_from(message_payload.len()).unwrap_or(u32::MAX);
+ let extra_bytes_in_payload = Weight::from(message_payload_len)
+ .saturating_sub(pallet_bridge_messages::EXPECTED_DEFAULT_MESSAGE_LENGTH.into());
+
+ MessageTransaction {
+ dispatch_weight: extra_bytes_in_payload
+ .saturating_mul(ADDITIONAL_MESSAGE_BYTE_DELIVERY_WEIGHT)
+ .saturating_add(DEFAULT_MESSAGE_DELIVERY_TX_WEIGHT)
+ .saturating_sub(if include_pay_dispatch_fee_cost {
+ 0
+ } else {
+ PAY_INBOUND_DISPATCH_FEE_WEIGHT
+ })
+ .saturating_add(message_dispatch_weight),
+ size: message_payload_len
+ .saturating_add(EXTRA_STORAGE_PROOF_SIZE)
+ .saturating_add(TX_EXTRA_BYTES),
+ }
+ }
+
+ fn transaction_payment(transaction: MessageTransaction) -> crate::Balance {
+ // current fee multiplier is used here
+ bridge_runtime_common::messages::transaction_payment(
+ crate::BlockWeights::get().get(frame_support::weights::DispatchClass::Normal).base_extrinsic,
+ crate::TransactionByteFee::get(),
+ pallet_transaction_payment::Pallet::::next_fee_multiplier(),
+ |weight| crate::constants::fee::WeightToFee::calc(&weight),
+ transaction,
+ )
+ }
+}
+
+impl TargetHeaderChain, crate::AccountId>
+ for RococoLikeChain
+where
+ B: MessageBridge,
+ B::ThisChain: ChainWithMessages,
+ B::BridgedChain: ChainWithMessages,
+ GI: 'static,
+ crate::Runtime: pallet_bridge_grandpa::Config + pallet_bridge_messages::Config,
+ <>::BridgedChain as bp_runtime::Chain>::Hash: From,
+{
+ type Error = &'static str;
+ type MessagesDeliveryProof = messages_source::FromBridgedChainMessagesDeliveryProof;
+
+ fn verify_message(payload: &messages_source::FromThisChainMessagePayload) -> Result<(), Self::Error> {
+ messages_source::verify_chain_message::(payload)
+ }
+
+ fn verify_messages_delivery_proof(
+ proof: Self::MessagesDeliveryProof,
+ ) -> Result<(LaneId, InboundLaneData), Self::Error> {
+ messages_source::verify_messages_delivery_proof::(proof)
+ }
+}
+
+impl SourceHeaderChain for RococoLikeChain
+where
+ B: MessageBridge,
+ B::BridgedChain: ChainWithMessages,
+ GI: 'static,
+ crate::Runtime: pallet_bridge_grandpa::Config + pallet_bridge_messages::Config,
+ <>::BridgedChain as bp_runtime::Chain>::Hash: From,
+{
+ type Error = &'static str;
+ type MessagesProof = messages_target::FromBridgedChainMessagesProof;
+
+ fn verify_messages_proof(
+ proof: Self::MessagesProof,
+ messages_count: u32,
+ ) -> Result>, Self::Error> {
+ messages_target::verify_messages_proof::(proof, messages_count)
+ }
+}
+
+/// The cost of delivery confirmation transaction.
+pub struct GetDeliveryConfirmationTransactionFee;
+
+impl Get for GetDeliveryConfirmationTransactionFee {
+ fn get() -> crate::Balance {
+ ::transaction_payment(
+ RococoAtRococo::estimate_delivery_confirmation_transaction()
+ )
+ }
+}
+
+/// This module contains definitions that are used by the messages pallet instance, 'deployed' at Rococo.
+mod at_rococo {
+ use super::*;
+
+ /// Message bridge that is 'deployed' at Rococo chain and connecting it to Wococo chain.
+ #[derive(RuntimeDebug, Clone, Copy)]
+ pub struct AtRococoWithWococoMessageBridge;
+
+ impl MessageBridge for AtRococoWithWococoMessageBridge {
+ const THIS_CHAIN_ID: ChainId = ROCOCO_CHAIN_ID;
+ const BRIDGED_CHAIN_ID: ChainId = WOCOCO_CHAIN_ID;
+ const RELAYER_FEE_PERCENT: u32 = 10;
+
+ type ThisChain = RococoAtRococo;
+ type BridgedChain = WococoAtRococo;
+ type BridgedMessagesInstance = crate::AtWococoWithRococoMessagesInstance;
+
+ fn bridged_balance_to_this_balance(bridged_balance: bp_wococo::Balance) -> bp_rococo::Balance {
+ bridged_balance
+ }
+ }
+
+ /// Message payload for Rococo -> Wococo messages as it is seen at the Rococo.
+ pub type ToWococoMessagePayload = messages_source::FromThisChainMessagePayload;
+
+ /// Message verifier for Rococo -> Wococo messages at Rococo.
+ pub type ToWococoMessageVerifier = messages_source::FromThisChainMessageVerifier;
+
+ /// Message payload for Wococo -> Rococo messages as it is seen at Rococo.
+ pub type FromWococoMessagePayload = messages_target::FromBridgedChainMessagePayload<
+ AtRococoWithWococoMessageBridge
+ >;
+
+ /// Encoded Rococo Call as it comes from Wococo.
+ pub type FromWococoEncodedCall = messages_target::FromBridgedChainEncodedMessageCall;
+
+ /// Call-dispatch based message dispatch for Wococo -> Rococo messages.
+ pub type FromWococoMessageDispatch = messages_target::FromBridgedChainMessageDispatch<
+ AtRococoWithWococoMessageBridge,
+ crate::Runtime,
+ pallet_balances::Pallet,
+ crate::AtRococoFromWococoMessagesDispatch,
+ >;
+}
+
+/// This module contains definitions that are used by the messages pallet instance, 'deployed' at Wococo.
+mod at_wococo {
+ use super::*;
+
+ /// Message bridge that is 'deployed' at Wococo chain and connecting it to Rococo chain.
+ #[derive(RuntimeDebug, Clone, Copy)]
+ pub struct AtWococoWithRococoMessageBridge;
+
+ impl MessageBridge for AtWococoWithRococoMessageBridge {
+ const THIS_CHAIN_ID: ChainId = WOCOCO_CHAIN_ID;
+ const BRIDGED_CHAIN_ID: ChainId = ROCOCO_CHAIN_ID;
+ const RELAYER_FEE_PERCENT: u32 = 10;
+
+ type ThisChain = WococoAtWococo;
+ type BridgedChain = RococoAtWococo;
+ type BridgedMessagesInstance = crate::AtRococoWithWococoMessagesInstance;
+
+ fn bridged_balance_to_this_balance(bridged_balance: bp_rococo::Balance) -> bp_wococo::Balance {
+ bridged_balance
+ }
+ }
+
+ /// Message payload for Wococo -> Rococo messages as it is seen at the Wococo.
+ pub type ToRococoMessagePayload = messages_source::FromThisChainMessagePayload;
+
+ /// Message verifier for Wococo -> Rococo messages at Wococo.
+ pub type ToRococoMessageVerifier = messages_source::FromThisChainMessageVerifier;
+
+ /// Message payload for Rococo -> Wococo messages as it is seen at Wococo.
+ pub type FromRococoMessagePayload = messages_target::FromBridgedChainMessagePayload<
+ AtWococoWithRococoMessageBridge,
+ >;
+
+ /// Encoded Wococo Call as it comes from Rococo.
+ pub type FromRococoEncodedCall = messages_target::FromBridgedChainEncodedMessageCall;
+
+ /// Call-dispatch based message dispatch for Rococo -> Wococo messages.
+ pub type FromRococoMessageDispatch = messages_target::FromBridgedChainMessageDispatch<
+ AtWococoWithRococoMessageBridge,
+ crate::Runtime,
+ pallet_balances::Pallet,
+ crate::AtWococoFromRococoMessagesDispatch,
+ >;
+}
+
+#[cfg(test)]
+mod tests {
+ use bridge_runtime_common::messages;
+ use parity_scale_codec::Encode;
+ use super::*;
+
+ #[test]
+ fn ensure_rococo_messages_weights_are_correct() {
+ // **NOTE**: the main purpose of this test is to be sure that any message that is sumbitted
+ // to (any) inbound lane in Rococo<>Wococo bridge can be delivered to the bridged chain.
+ // Since we deal with testnets here, in case of failure + urgency:
+ //
+ // 1) ping bridges team about this failure (see the CODEOWNERS file if you're unsure who to ping);
+ // 2) comment/#[ignore] the test.
+
+ // we don't have any knowledge of messages-at-Rococo weights, so we'll be using
+ // weights of one of our testnets, which should be accurate enough
+ type Weights = pallet_bridge_messages::weights::RialtoWeight;
+
+ pallet_bridge_messages::ensure_weights_are_correct::(
+ DEFAULT_MESSAGE_DELIVERY_TX_WEIGHT,
+ ADDITIONAL_MESSAGE_BYTE_DELIVERY_WEIGHT,
+ MAX_SINGLE_MESSAGE_DELIVERY_CONFIRMATION_TX_WEIGHT,
+ PAY_INBOUND_DISPATCH_FEE_WEIGHT,
+ );
+
+ let max_incoming_message_proof_size = bp_rococo::EXTRA_STORAGE_PROOF_SIZE.saturating_add(
+ messages::target::maximal_incoming_message_size(bp_rococo::max_extrinsic_size()),
+ );
+ pallet_bridge_messages::ensure_able_to_receive_message::(
+ bp_rococo::max_extrinsic_size(),
+ bp_rococo::max_extrinsic_weight(),
+ max_incoming_message_proof_size,
+ messages::target::maximal_incoming_message_dispatch_weight(bp_rococo::max_extrinsic_weight()),
+ );
+
+ let max_incoming_inbound_lane_data_proof_size = bp_messages::InboundLaneData::<()>::encoded_size_hint(
+ bp_rococo::MAXIMAL_ENCODED_ACCOUNT_ID_SIZE,
+ bp_rococo::MAX_UNREWARDED_RELAYER_ENTRIES_AT_INBOUND_LANE as _,
+ bp_rococo::MAX_UNCONFIRMED_MESSAGES_AT_INBOUND_LANE as _,
+ )
+ .unwrap_or(u32::MAX);
+ pallet_bridge_messages::ensure_able_to_receive_confirmation::(
+ bp_rococo::max_extrinsic_size(),
+ bp_rococo::max_extrinsic_weight(),
+ max_incoming_inbound_lane_data_proof_size,
+ bp_rococo::MAX_UNREWARDED_RELAYER_ENTRIES_AT_INBOUND_LANE,
+ bp_rococo::MAX_UNCONFIRMED_MESSAGES_AT_INBOUND_LANE,
+ );
+ }
+
+ #[test]
+ fn ensure_rococo_tx_extra_bytes_constant_is_correct() {
+ // **NOTE**: this test checks that we're computing transaction fee (for bridged chain, which, in
+ // case of Rococo<>Wococo, means any chain) on-chain properly. If this assert fails:
+ //
+ // 1) just fix the `TX_EXTRA_BYTES` constant to actual (or sightly rounded up) value;
+ // 2) (only if it has changed significantly (> x2 times)) ping the bridges team (see the CODEOWNERS
+ // file if you're unsure who to ping)
+
+ let signed_extra: crate::SignedExtra = (
+ frame_system::CheckSpecVersion::new(),
+ frame_system::CheckTxVersion::new(),
+ frame_system::CheckGenesis::new(),
+ frame_system::CheckMortality::from(sp_runtime::generic::Era::mortal(u64::MAX, u64::MAX)),
+ frame_system::CheckNonce::from(primitives::v1::Nonce::MAX),
+ frame_system::CheckWeight::new(),
+ pallet_transaction_payment::ChargeTransactionPayment::from(primitives::v1::Balance::MAX),
+ );
+ let extra_bytes_in_transaction = crate::Address::default().encoded_size()
+ + crate::Signature::default().encoded_size()
+ + signed_extra.encoded_size();
+ assert!(
+ TX_EXTRA_BYTES as usize >= extra_bytes_in_transaction,
+ "Hardcoded number of extra bytes in Rococo transaction {} is lower than actual value: {}",
+ TX_EXTRA_BYTES,
+ extra_bytes_in_transaction,
+ );
+ }
+}
diff --git a/runtime/rococo/src/lib.rs b/runtime/rococo/src/lib.rs
index d7da171acdba..a216388e0536 100644
--- a/runtime/rococo/src/lib.rs
+++ b/runtime/rococo/src/lib.rs
@@ -82,6 +82,8 @@ use runtime_parachains::ump as parachains_ump;
use runtime_parachains::hrmp as parachains_hrmp;
use runtime_parachains::scheduler as parachains_scheduler;
+use bridge_runtime_common::messages::{MessageBridge, source::estimate_message_dispatch_and_delivery_fee};
+
pub use pallet_balances::Call as BalancesCall;
use polkadot_parachain::primitives::Id as ParaId;
@@ -99,6 +101,7 @@ use frame_support::traits::InstanceFilter;
/// Constant values used within the runtime.
pub mod constants;
+mod bridge_messages;
mod validator_manager;
// Make the WASM binary available.
@@ -245,6 +248,13 @@ construct_runtime! {
// Validator Manager pallet.
ValidatorManager: validator_manager::{Pallet, Call, Storage, Event},
+ // Bridge messages support. The same story as with the bridge grandpa pallet above ^^^ - when we're
+ // running as Rococo we only use `BridgeWococoMessages`/`BridgeWococoMessagesDispatch`, and vice versa.
+ BridgeRococoMessages: pallet_bridge_messages::{Pallet, Call, Storage, Event, Config} = 43,
+ BridgeWococoMessages: pallet_bridge_messages::::{Pallet, Call, Storage, Event, Config} = 44,
+ BridgeRococoMessagesDispatch: pallet_bridge_dispatch::{Pallet, Event} = 45,
+ BridgeWococoMessagesDispatch: pallet_bridge_dispatch::::{Pallet, Event} = 46,
+
// A "council"
Collective: pallet_collective::{Pallet, Call, Storage, Origin, Event, Config} = 80,
Membership: pallet_membership::{Pallet, Call, Storage, Event, Config} = 81,
@@ -857,6 +867,111 @@ impl pallet_bridge_grandpa::Config for Runtime {
type WeightInfo = pallet_bridge_grandpa::weights::RialtoWeight;
}
+// Instance that is 'deployed' at Wococo chain. Responsible for dispatching Rococo -> Wococo messages.
+pub type AtWococoFromRococoMessagesDispatch = pallet_bridge_dispatch::DefaultInstance;
+impl pallet_bridge_dispatch::Config for Runtime {
+ type Event = Event;
+ type MessageId = (bp_messages::LaneId, bp_messages::MessageNonce);
+ type Call = Call;
+ type CallFilter = ();
+ type EncodedCall = bridge_messages::FromRococoEncodedCall;
+ type SourceChainAccountId = bp_wococo::AccountId;
+ type TargetChainAccountPublic = sp_runtime::MultiSigner;
+ type TargetChainSignature = sp_runtime::MultiSignature;
+ type AccountIdConverter = bp_rococo::AccountIdConverter;
+}
+
+// Instance that is 'deployed' at Rococo chain. Responsible for dispatching Wococo -> Rococo messages.
+pub type AtRococoFromWococoMessagesDispatch = pallet_bridge_dispatch::Instance1;
+impl pallet_bridge_dispatch::Config for Runtime {
+ type Event = Event;
+ type MessageId = (bp_messages::LaneId, bp_messages::MessageNonce);
+ type Call = Call;
+ type CallFilter = ();
+ type EncodedCall = bridge_messages::FromWococoEncodedCall;
+ type SourceChainAccountId = bp_rococo::AccountId;
+ type TargetChainAccountPublic = sp_runtime::MultiSigner;
+ type TargetChainSignature = sp_runtime::MultiSignature;
+ type AccountIdConverter = bp_wococo::AccountIdConverter;
+}
+
+parameter_types! {
+ pub const MaxMessagesToPruneAtOnce: bp_messages::MessageNonce = 8;
+ pub const MaxUnrewardedRelayerEntriesAtInboundLane: bp_messages::MessageNonce =
+ bp_rococo::MAX_UNREWARDED_RELAYER_ENTRIES_AT_INBOUND_LANE;
+ pub const MaxUnconfirmedMessagesAtInboundLane: bp_messages::MessageNonce =
+ bp_rococo::MAX_UNCONFIRMED_MESSAGES_AT_INBOUND_LANE;
+ pub const RootAccountForPayments: Option = None;
+}
+
+// Instance that is 'deployed' at Wococo chain. Responsible for sending Wococo -> Rococo messages
+// and receiving Rococo -> Wococo messages.
+pub type AtWococoWithRococoMessagesInstance = pallet_bridge_messages::DefaultInstance;
+impl pallet_bridge_messages::Config for Runtime {
+ type Event = Event;
+ type WeightInfo = pallet_bridge_messages::weights::RialtoWeight;
+ type Parameter = ();
+ type MaxMessagesToPruneAtOnce = MaxMessagesToPruneAtOnce;
+ type MaxUnrewardedRelayerEntriesAtInboundLane = MaxUnrewardedRelayerEntriesAtInboundLane;
+ type MaxUnconfirmedMessagesAtInboundLane = MaxUnconfirmedMessagesAtInboundLane;
+
+ type OutboundPayload = crate::bridge_messages::ToRococoMessagePayload;
+ type OutboundMessageFee = bp_wococo::Balance;
+
+ type InboundPayload = crate::bridge_messages::FromRococoMessagePayload;
+ type InboundMessageFee = bp_rococo::Balance;
+ type InboundRelayer = bp_rococo::AccountId;
+
+ type AccountIdConverter = bp_wococo::AccountIdConverter;
+
+ type TargetHeaderChain = crate::bridge_messages::RococoAtWococo;
+ type LaneMessageVerifier = crate::bridge_messages::ToRococoMessageVerifier;
+ type MessageDeliveryAndDispatchPayment = pallet_bridge_messages::instant_payments::InstantCurrencyPayments<
+ Runtime,
+ pallet_balances::Pallet,
+ crate::bridge_messages::GetDeliveryConfirmationTransactionFee,
+ RootAccountForPayments,
+ >;
+ type OnDeliveryConfirmed = ();
+
+ type SourceHeaderChain = crate::bridge_messages::RococoAtWococo;
+ type MessageDispatch = crate::bridge_messages::FromRococoMessageDispatch;
+}
+
+// Instance that is 'deployed' at Rococo chain. Responsible for sending Rococo -> Wococo messages
+// and receiving Wococo -> Rococo messages.
+pub type AtRococoWithWococoMessagesInstance = pallet_bridge_messages::Instance1;
+impl pallet_bridge_messages::Config for Runtime {
+ type Event = Event;
+ type WeightInfo = pallet_bridge_messages::weights::RialtoWeight;
+ type Parameter = ();
+ type MaxMessagesToPruneAtOnce = MaxMessagesToPruneAtOnce;
+ type MaxUnrewardedRelayerEntriesAtInboundLane = MaxUnrewardedRelayerEntriesAtInboundLane;
+ type MaxUnconfirmedMessagesAtInboundLane = MaxUnconfirmedMessagesAtInboundLane;
+
+ type OutboundPayload = crate::bridge_messages::ToWococoMessagePayload;
+ type OutboundMessageFee = bp_rococo::Balance;
+
+ type InboundPayload = crate::bridge_messages::FromWococoMessagePayload;
+ type InboundMessageFee = bp_wococo::Balance;
+ type InboundRelayer = bp_wococo::AccountId;
+
+ type AccountIdConverter = bp_rococo::AccountIdConverter;
+
+ type TargetHeaderChain = crate::bridge_messages::WococoAtRococo;
+ type LaneMessageVerifier = crate::bridge_messages::ToWococoMessageVerifier;
+ type MessageDeliveryAndDispatchPayment = pallet_bridge_messages::instant_payments::InstantCurrencyPayments<
+ Runtime,
+ pallet_balances::Pallet,
+ crate::bridge_messages::GetDeliveryConfirmationTransactionFee,
+ RootAccountForPayments,
+ >;
+ type OnDeliveryConfirmed = ();
+
+ type SourceHeaderChain = crate::bridge_messages::WococoAtRococo;
+ type MessageDispatch = crate::bridge_messages::FromWococoMessageDispatch;
+}
+
impl Randomness for ParentHashRandomness {
fn random(subject: &[u8]) -> (Hash, BlockNumber) {
(
@@ -1301,6 +1416,116 @@ sp_api::impl_runtime_apis! {
}
}
+ impl bp_rococo::ToRococoOutboundLaneApi for Runtime {
+ fn estimate_message_delivery_and_dispatch_fee(
+ _lane_id: bp_messages::LaneId,
+ payload: bridge_messages::ToWococoMessagePayload,
+ ) -> Option {
+ estimate_message_dispatch_and_delivery_fee::(
+ &payload,
+ bridge_messages::AtWococoWithRococoMessageBridge::RELAYER_FEE_PERCENT,
+ ).ok()
+ }
+
+ fn message_details(
+ lane: bp_messages::LaneId,
+ begin: bp_messages::MessageNonce,
+ end: bp_messages::MessageNonce,
+ ) -> Vec> {
+ (begin..=end).filter_map(|nonce| {
+ let message_data = BridgeRococoMessages::outbound_message_data(lane, nonce)?;
+ let decoded_payload = bridge_messages::ToRococoMessagePayload::decode(
+ &mut &message_data.payload[..]
+ ).ok()?;
+ Some(bp_messages::MessageDetails {
+ nonce,
+ dispatch_weight: decoded_payload.weight,
+ size: message_data.payload.len() as _,
+ delivery_and_dispatch_fee: message_data.fee,
+ dispatch_fee_payment: decoded_payload.dispatch_fee_payment,
+ })
+ })
+ .collect()
+ }
+
+ fn latest_received_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeRococoMessages::outbound_latest_received_nonce(lane)
+ }
+
+ fn latest_generated_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeRococoMessages::outbound_latest_generated_nonce(lane)
+ }
+ }
+
+ impl bp_rococo::FromRococoInboundLaneApi for Runtime {
+ fn latest_received_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeRococoMessages::inbound_latest_received_nonce(lane)
+ }
+
+ fn latest_confirmed_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeRococoMessages::inbound_latest_confirmed_nonce(lane)
+ }
+
+ fn unrewarded_relayers_state(lane: bp_messages::LaneId) -> bp_messages::UnrewardedRelayersState {
+ BridgeRococoMessages::inbound_unrewarded_relayers_state(lane)
+ }
+ }
+
+ impl bp_wococo::ToWococoOutboundLaneApi for Runtime {
+ fn estimate_message_delivery_and_dispatch_fee(
+ _lane_id: bp_messages::LaneId,
+ payload: bridge_messages::ToWococoMessagePayload,
+ ) -> Option {
+ estimate_message_dispatch_and_delivery_fee::(
+ &payload,
+ bridge_messages::AtRococoWithWococoMessageBridge::RELAYER_FEE_PERCENT,
+ ).ok()
+ }
+
+ fn message_details(
+ lane: bp_messages::LaneId,
+ begin: bp_messages::MessageNonce,
+ end: bp_messages::MessageNonce,
+ ) -> Vec> {
+ (begin..=end).filter_map(|nonce| {
+ let message_data = BridgeWococoMessages::outbound_message_data(lane, nonce)?;
+ let decoded_payload = bridge_messages::ToWococoMessagePayload::decode(
+ &mut &message_data.payload[..]
+ ).ok()?;
+ Some(bp_messages::MessageDetails {
+ nonce,
+ dispatch_weight: decoded_payload.weight,
+ size: message_data.payload.len() as _,
+ delivery_and_dispatch_fee: message_data.fee,
+ dispatch_fee_payment: decoded_payload.dispatch_fee_payment,
+ })
+ })
+ .collect()
+ }
+
+ fn latest_received_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeWococoMessages::outbound_latest_received_nonce(lane)
+ }
+
+ fn latest_generated_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeWococoMessages::outbound_latest_generated_nonce(lane)
+ }
+ }
+
+ impl bp_wococo::FromWococoInboundLaneApi for Runtime {
+ fn latest_received_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeWococoMessages::inbound_latest_received_nonce(lane)
+ }
+
+ fn latest_confirmed_nonce(lane: bp_messages::LaneId) -> bp_messages::MessageNonce {
+ BridgeWococoMessages::inbound_latest_confirmed_nonce(lane)
+ }
+
+ fn unrewarded_relayers_state(lane: bp_messages::LaneId) -> bp_messages::UnrewardedRelayersState {
+ BridgeWococoMessages::inbound_unrewarded_relayers_state(lane)
+ }
+ }
+
impl frame_system_rpc_runtime_api::AccountNonceApi for Runtime {
fn account_nonce(account: AccountId) -> Nonce {
System::account_nonce(account)