bp_moonriver/
lib.rs

1// Copyright 2025 Moonbeam foundation
2// This file is part of Moonbeam.
3
4// Moonbeam is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8
9// Moonbeam is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License
15// along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
16
17//! # Moonriver bridge primitives
18
19#![cfg_attr(not(feature = "std"), no_std)]
20
21pub use bp_bridge_hub_cumulus::{
22	BlockLength, BlockWeights, Hasher, Nonce, SignedBlock, AVERAGE_BLOCK_INTERVAL,
23	MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX, MAX_UNREWARDED_RELAYERS_IN_CONFIRMATION_TX,
24};
25use bp_messages::{ChainWithMessages, MessageNonce};
26
27pub use moonbeam_core_primitives::{AccountId, Balance, BlockNumber, Hash, Header, Signature};
28
29use bp_runtime::{
30	decl_bridge_finality_runtime_apis, decl_bridge_messages_runtime_apis, Chain, ChainId, Parachain,
31};
32use frame_support::{dispatch::DispatchClass, weights::Weight};
33use sp_runtime::StateVersion;
34use xcm::latest::prelude::{Junction, Location, NetworkId};
35
36/// Identifier of Moonriver parachain in the Kusama relay chain.
37pub const PARACHAIN_ID: u32 = 2023;
38
39/// Bridge lane identifier.
40pub type LaneId = bp_messages::HashedLaneId;
41
42/// Moonriver parachain.
43pub struct Moonriver;
44
45impl Chain for Moonriver {
46	const ID: ChainId = *b"mnrv";
47
48	type BlockNumber = BlockNumber;
49	type Hash = Hash;
50	type Hasher = Hasher;
51	type Header = Header;
52
53	type AccountId = AccountId;
54	type Balance = Balance;
55	type Nonce = Nonce;
56	type Signature = Signature;
57
58	const STATE_VERSION: StateVersion = StateVersion::V1;
59
60	fn max_extrinsic_size() -> u32 {
61		*BlockLength::get().max.get(DispatchClass::Normal)
62	}
63
64	fn max_extrinsic_weight() -> Weight {
65		BlockWeights::get()
66			.get(DispatchClass::Normal)
67			.max_extrinsic
68			.unwrap_or(Weight::MAX)
69	}
70}
71
72impl Parachain for Moonriver {
73	const PARACHAIN_ID: u32 = PARACHAIN_ID;
74	const MAX_HEADER_SIZE: u32 = 4_096;
75}
76
77impl ChainWithMessages for Moonriver {
78	const WITH_CHAIN_MESSAGES_PALLET_NAME: &'static str =
79		WITH_MOONRIVER_KUSAMA_MESSAGES_PALLET_NAME;
80
81	const MAX_UNREWARDED_RELAYERS_IN_CONFIRMATION_TX: MessageNonce =
82		MAX_UNREWARDED_RELAYERS_IN_CONFIRMATION_TX;
83	const MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX: MessageNonce =
84		MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX;
85}
86
87/// Name of the With-MoonriverKusama messages pallet instance that is deployed at bridged chains.
88pub const WITH_MOONRIVER_KUSAMA_MESSAGES_PALLET_NAME: &str = "BridgeKusamaMessages";
89
90decl_bridge_finality_runtime_apis!(moonriver_kusama);
91decl_bridge_messages_runtime_apis!(moonriver_kusama, LaneId);
92
93frame_support::parameter_types! {
94	pub GlobalConsensusLocation: Location = Location::new(
95		2,
96		[
97			Junction::GlobalConsensus(NetworkId::Kusama),
98			Junction::Parachain(Moonriver::PARACHAIN_ID)
99		]
100	);
101}
102
103/// Bridging primitives describing the Polkadot relay chain, which we need for the other side.
104/// Same approach as in https://github.com/polkadot-fellows/runtimes/pull/627
105pub mod bp_polkadot {
106	use super::{decl_bridge_finality_runtime_apis, Chain, ChainId, StateVersion, Weight};
107	use bp_header_chain::ChainWithGrandpa;
108	pub use bp_polkadot_core::*;
109
110	/// Polkadot Chain
111	pub struct Polkadot;
112
113	impl Chain for Polkadot {
114		const ID: ChainId = *b"pdot";
115
116		type BlockNumber = BlockNumber;
117		type Hash = Hash;
118		type Hasher = Hasher;
119		type Header = Header;
120
121		type AccountId = AccountId;
122		type Balance = Balance;
123		type Nonce = Nonce;
124		type Signature = Signature;
125
126		const STATE_VERSION: StateVersion = StateVersion::V0;
127
128		fn max_extrinsic_size() -> u32 {
129			max_extrinsic_size()
130		}
131
132		fn max_extrinsic_weight() -> Weight {
133			max_extrinsic_weight()
134		}
135	}
136
137	impl ChainWithGrandpa for Polkadot {
138		const WITH_CHAIN_GRANDPA_PALLET_NAME: &'static str = WITH_POLKADOT_GRANDPA_PALLET_NAME;
139		const MAX_AUTHORITIES_COUNT: u32 = MAX_AUTHORITIES_COUNT;
140		const REASONABLE_HEADERS_IN_JUSTIFICATION_ANCESTRY: u32 =
141			REASONABLE_HEADERS_IN_JUSTIFICATION_ANCESTRY;
142		const MAX_MANDATORY_HEADER_SIZE: u32 = MAX_MANDATORY_HEADER_SIZE;
143		const AVERAGE_HEADER_SIZE: u32 = AVERAGE_HEADER_SIZE;
144	}
145
146	/// Name of the parachains pallet in the Polkadot runtime.
147	pub const PARAS_PALLET_NAME: &str = "Paras";
148	/// Name of the With-Polkadot GRANDPA pallet instance that is deployed at bridged chains.
149	pub const WITH_POLKADOT_GRANDPA_PALLET_NAME: &str = "BridgePolkadotGrandpa";
150	/// Name of the With-Polkadot parachains pallet instance that is deployed at bridged chains.
151	pub const WITH_POLKADOT_BRIDGE_PARACHAINS_PALLET_NAME: &str = "BridgePolkadotParachains";
152
153	/// Maximal size of encoded `bp_parachains::ParaStoredHeaderData` structure among all Polkadot
154	/// parachains.
155	///
156	/// It includes the block number and state root, so it shall be near 40 bytes, but let's have
157	/// some reserve.
158	pub const MAX_NESTED_PARACHAIN_HEAD_DATA_SIZE: u32 = 128;
159
160	decl_bridge_finality_runtime_apis!(polkadot, grandpa);
161}
bp_moonriver/lib.rs

bp_moonriver/
lib.rs
