Add BridgeHub to the trusted teleporters for relaychain.

polkadot-fellows · Nov 8, 2023 · 96f6566 · 96f6566
1 parent 4d669dc
commit 96f6566
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Showing 4 changed files with 33 additions and 9 deletions.
diff --git a/relay/kusama/constants/src/lib.rs b/relay/kusama/constants/src/lib.rs
@@ -97,6 +97,16 @@ pub mod fee {
 	}
 }
 
+/// System Parachains.
+pub mod system_parachain {
+	/// Asset Hub parachain ID.
+	pub const ASSET_HUB_ID: u32 = 1000;
+	/// Encointer parachain ID.
+	pub const ENCOINTER_ID: u32 = 1001;
+	/// BridgeHub parachain ID.
+	pub const BRIDGE_HUB_ID: u32 = 1002;
+}
+
 #[cfg(test)]
 mod tests {
 	use super::{

diff --git a/relay/kusama/src/xcm_config.rs b/relay/kusama/src/xcm_config.rs
@@ -27,7 +27,7 @@ use frame_support::{
 	weights::Weight,
 };
 use frame_system::EnsureRoot;
-use kusama_runtime_constants::currency::CENTS;
+use kusama_runtime_constants::{currency::CENTS, system_parachain::*};
 use runtime_common::{
 	crowdloan, paras_registrar,
 	xcm_sender::{ChildParachainRouter, ExponentialPrice},
@@ -123,14 +123,21 @@ pub type XcmRouter = WithUniqueTopic<(
 
 parameter_types! {
 	pub const Ksm: MultiAssetFilter = Wild(AllOf { fun: WildFungible, id: Concrete(TokenLocation::get()) });
-	pub const Statemine: MultiLocation = Parachain(1000).into_location();
-	pub const Encointer: MultiLocation = Parachain(1001).into_location();
+	pub const Statemine: MultiLocation = Parachain(ASSET_HUB_ID).into_location();
+	pub const EncointerLocation: MultiLocation = Parachain(ENCOINTER_ID).into_location();
+	pub const BridgeHubLocation: MultiLocation = Parachain(BRIDGE_HUB_ID).into_location();
 	pub const KsmForStatemine: (MultiAssetFilter, MultiLocation) = (Ksm::get(), Statemine::get());
-	pub const KsmForEncointer: (MultiAssetFilter, MultiLocation) = (Ksm::get(), Encointer::get());
+	pub const KsmForEncointer: (MultiAssetFilter, MultiLocation) = (Ksm::get(), EncointerLocation::get());
+	pub const KsmForBridgeHub: (MultiAssetFilter, MultiLocation) = (Ksm::get(), BridgeHubLocation::get());
 	pub const MaxAssetsIntoHolding: u32 = 64;
 }
-pub type TrustedTeleporters =
-	(xcm_builder::Case<KsmForStatemine>, xcm_builder::Case<KsmForEncointer>);
+
+/// Kusama Relay recognizes/respects AssetHub, Encointer, and BridgeHub chains as teleporters.
+pub type TrustedTeleporters = (
+	xcm_builder::Case<KsmForStatemine>,
+	xcm_builder::Case<KsmForEncointer>,
+	xcm_builder::Case<KsmForBridgeHub>,
+);
 
 match_types! {
 	pub type OnlyParachains: impl Contains<MultiLocation> = {

diff --git a/relay/polkadot/constants/src/lib.rs b/relay/polkadot/constants/src/lib.rs
@@ -117,6 +117,8 @@ pub mod system_parachain {
 	pub const STATEMINT_ID: u32 = 1000;
 	/// Collectives parachain ID.
 	pub const COLLECTIVES_ID: u32 = 1001;
+	/// BridgeHub parachain ID.
+	pub const BRIDGE_HUB_ID: u32 = 1002;
 }
 
 #[cfg(test)]

diff --git a/relay/polkadot/src/xcm_config.rs b/relay/polkadot/src/xcm_config.rs
@@ -135,12 +135,17 @@ parameter_types! {
 	pub const DotForStatemint: (MultiAssetFilter, MultiLocation) = (Dot::get(), StatemintLocation::get());
 	pub const CollectivesLocation: MultiLocation = Parachain(COLLECTIVES_ID).into_location();
 	pub const DotForCollectives: (MultiAssetFilter, MultiLocation) = (Dot::get(), CollectivesLocation::get());
+	pub const BridgeHubLocation: MultiLocation = Parachain(BRIDGE_HUB_ID).into_location();
+	pub const DotForBridgeHub: (MultiAssetFilter, MultiLocation) = (Dot::get(), BridgeHubLocation::get());
 	pub const MaxAssetsIntoHolding: u32 = 64;
 }
 
-/// Polkadot Relay recognizes/respects the Statemint chain as a teleporter.
-pub type TrustedTeleporters =
-	(xcm_builder::Case<DotForStatemint>, xcm_builder::Case<DotForCollectives>);
+/// Polkadot Relay recognizes/respects Statemint, Collectives, and BridgeHub chains as teleporters.
+pub type TrustedTeleporters = (
+	xcm_builder::Case<DotForStatemint>,
+	xcm_builder::Case<DotForCollectives>,
+	xcm_builder::Case<DotForBridgeHub>,
+);
 
 match_types! {
 	pub type OnlyParachains: impl Contains<MultiLocation> = {