Bridges: Add initial primitives for AssetHub bridging

bridges/chains/chain-asset-hub-rococo/Cargo.toml

@@ -23,6 +23,9 @@ sp-core = { workspace = true }
 
 # Bridge Dependencies
 bp-xcm-bridge-hub-router = { workspace = true }
+bp-bridge-hub-cumulus = { workspace = true }
+bp-messages = { workspace = true }
+bp-runtime = { workspace = true }
 testnet-parachains-constants = { features = ["rococo"], workspace = true }
 
 # Polkadot dependencies
@@ -32,7 +35,12 @@ xcm = { workspace = true }
 default = ["std"]
 std = [
 	"bp-xcm-bridge-hub-router/std",
+	"bp-bridge-hub-cumulus/std",
+	"bp-messages/std",
+	"bp-runtime/std",
 	"codec/std",
+	"codec/std",
+	"frame-support/std",
 	"frame-support/std",
 	"scale-info/std",
 	"sp-core/std",

bridges/chains/chain-asset-hub-rococo/src/lib.rs

@@ -23,7 +23,14 @@ extern crate alloc;
 use codec::{Decode, Encode};
 use scale_info::TypeInfo;
 
+pub use bp_bridge_hub_cumulus::*;
+use bp_messages::*;
+use bp_runtime::{Chain, ChainId, Parachain};
 pub use bp_xcm_bridge_hub_router::XcmBridgeHubRouterCall;
+use frame_support::{
+	dispatch::DispatchClass,
+	sp_runtime::{RuntimeDebug, StateVersion},
+};
 use testnet_parachains_constants::rococo::currency::UNITS;
 use xcm::latest::prelude::*;
 
@@ -74,3 +81,40 @@ pub fn build_congestion_message<RuntimeCall>(
 
 /// Identifier of AssetHubRococo in the Rococo relay chain.
 pub const ASSET_HUB_ROCOCO_PARACHAIN_ID: u32 = 1000;
+
+/// AssetHubRococo parachain.
+#[derive(RuntimeDebug)]
+
+pub struct AssetHubRococo;
+
+impl Chain for AssetHubRococo {
+	const ID: ChainId = *b"ahro";
+
+	type BlockNumber = BlockNumber;
+	type Hash = Hash;
+	type Hasher = Hasher;
+	type Header = Header;
+
+	type AccountId = AccountId;
+	type Balance = Balance;
+	type Nonce = Nonce;
+	type Signature = Signature;
+
+	const STATE_VERSION: StateVersion = StateVersion::V1;
+
+	fn max_extrinsic_size() -> u32 {
+		*BlockLength::get().max.get(DispatchClass::Normal)
+	}
+
+	fn max_extrinsic_weight() -> Weight {
+		BlockWeightsForAsyncBacking::get()
+			.get(DispatchClass::Normal)
+			.max_extrinsic
+			.unwrap_or(Weight::MAX)
+	}
+}
+
+impl Parachain for AssetHubRococo {
+	const PARACHAIN_ID: u32 = ASSET_HUB_ROCOCO_PARACHAIN_ID;
+	const MAX_HEADER_SIZE: u32 = MAX_ASSET_HUB_HEADER_SIZE;
+}

bridges/chains/chain-asset-hub-westend/Cargo.toml

@@ -23,6 +23,9 @@ sp-core = { workspace = true }
 
 # Bridge Dependencies
 bp-xcm-bridge-hub-router = { workspace = true }
+bp-bridge-hub-cumulus = { workspace = true }
+bp-messages = { workspace = true }
+bp-runtime = { workspace = true }
 testnet-parachains-constants = { features = ["westend"], workspace = true }
 
 # Polkadot dependencies
@@ -32,7 +35,12 @@ xcm = { workspace = true }
 default = ["std"]
 std = [
 	"bp-xcm-bridge-hub-router/std",
+	"bp-bridge-hub-cumulus/std",
+	"bp-messages/std",
+	"bp-runtime/std",
 	"codec/std",
+	"codec/std",
+	"frame-support/std",
 	"frame-support/std",
 	"scale-info/std",
 	"sp-core/std",

bridges/chains/chain-asset-hub-westend/src/lib.rs

@@ -20,10 +20,16 @@
 
 extern crate alloc;
 
+pub use bp_bridge_hub_cumulus::*;
+use bp_messages::*;
+use bp_runtime::{Chain, ChainId, Parachain};
+pub use bp_xcm_bridge_hub_router::XcmBridgeHubRouterCall;
 use codec::{Decode, Encode};
+use frame_support::{
+	dispatch::DispatchClass,
+	sp_runtime::{RuntimeDebug, StateVersion},
+};
 use scale_info::TypeInfo;
-
-pub use bp_xcm_bridge_hub_router::XcmBridgeHubRouterCall;
 use testnet_parachains_constants::westend::currency::UNITS;
 use xcm::latest::prelude::*;
 
@@ -75,3 +81,39 @@ pub fn build_congestion_message<RuntimeCall>(
 
 /// Identifier of AssetHubWestend in the Westend relay chain.
 pub const ASSET_HUB_WESTEND_PARACHAIN_ID: u32 = 1000;
+
+/// AssetHubWestend parachain.
+#[derive(RuntimeDebug)]
+pub struct AssetHubWestend;
+
+impl Chain for AssetHubWestend {
+	const ID: ChainId = *b"ahwd";
+
+	type BlockNumber = BlockNumber;
+	type Hash = Hash;
+	type Hasher = Hasher;
+	type Header = Header;
+
+	type AccountId = AccountId;
+	type Balance = Balance;
+	type Nonce = Nonce;
+	type Signature = Signature;
+
+	const STATE_VERSION: StateVersion = StateVersion::V1;
+
+	fn max_extrinsic_size() -> u32 {
+		*BlockLength::get().max.get(DispatchClass::Normal)
+	}
+
+	fn max_extrinsic_weight() -> Weight {
+		BlockWeightsForAsyncBacking::get()
+			.get(DispatchClass::Normal)
+			.max_extrinsic
+			.unwrap_or(Weight::MAX)
+	}
+}
+
+impl Parachain for AssetHubWestend {
+	const PARACHAIN_ID: u32 = ASSET_HUB_WESTEND_PARACHAIN_ID;
+	const MAX_HEADER_SIZE: u32 = MAX_ASSET_HUB_HEADER_SIZE;
+}

bridges/chains/chain-bridge-hub-cumulus/src/lib.rs

@@ -39,6 +39,9 @@ use frame_support::{
 use frame_system::limits;
 use sp_std::time::Duration;
 
+/// Maximal asset hub header size.
+pub const MAX_ASSET_HUB_HEADER_SIZE: u32 = 4_096;
+
 /// Maximal bridge hub header size.
 pub const MAX_BRIDGE_HUB_HEADER_SIZE: u32 = 4_096;
 

prdoc/pr_8063.prdoc

@@ -0,0 +1,31 @@
+title: 'Bridges: Add initial primitives for AssetHub bridging'
+doc:
+- audience: Runtime Dev
+  description: |-
+    This resolves TODO no. 1: https://github.com/paritytech/parity-bridges-common/issues/3136#issue-2913441160
+
+    To add cli support to substrate-relay as described in above issue,
+    necessary changes from [this](https://github.com/paritytech/polkadot-sdk/pull/6675) PR are added by this PR.
+
+    Specifically below changes and any other supportive changes.
+
+    ```
+    // bridges/chains/chain-asset-hub-rococo/src/lib.rs
+    impl Chain for AssetHubRococo {..}
+    impl Parachain for AssetHubRococo {..}
+    ```
+
+    ```
+    // bridges/chains/chain-asset-hub-westend/src/lib.rs
+    impl Chain for AssetHubWestend {..}
+    impl Parachain for AssetHubWestend {..}
+    ```
+crates:
+- name: bp-asset-hub-rococo
+  bump: patch
+- name: bp-asset-hub-westend
+  bump: patch
+- name: pallet-bridge-grandpa
+  bump: patch
+- name: bp-bridge-hub-cumulus
+  bump: patch