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Kusama <> Polkadot relay prototype (#1982)

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* moved bridge declarations to dedicated folder

* Kusama <> Polkadot bridges declaration

* support for Kusama <> Polkadot bridge in CLI

* update dictionary
This commit is contained in:
Svyatoslav Nikolsky
2023-03-20 17:49:48 +03:00
committed by Bastian Köcher
parent fe050f6f50
commit 9b57f2181c
65 changed files with 1600 additions and 161 deletions
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bridges/primitives/runtime/src/lib.rs
+16 -55
View File
@@ -25,8 +25,7 @@ use frame_support::{
};
use frame_system::RawOrigin;
use scale_info::TypeInfo;
use sp_core::{hash::H256, storage::StorageKey};
use sp_io::hashing::blake2_256;
use sp_core::storage::StorageKey;
use sp_runtime::traits::{BadOrigin, Header as HeaderT, UniqueSaturatedInto};
use sp_std::{convert::TryFrom, fmt::Debug, vec, vec::Vec};
@@ -59,47 +58,44 @@ pub use sp_runtime::paste;
/// Use this when something must be shared among all instances.
pub const NO_INSTANCE_ID: ChainId = [0, 0, 0, 0];
/// Bridge-with-Rialto instance id.
/// Rialto chain id.
pub const RIALTO_CHAIN_ID: ChainId = *b"rlto";
/// Bridge-with-RialtoParachain instance id.
/// RialtoParachain chain id.
pub const RIALTO_PARACHAIN_CHAIN_ID: ChainId = *b"rlpa";
/// Bridge-with-Millau instance id.
/// Millau chain id.
pub const MILLAU_CHAIN_ID: ChainId = *b"mlau";
/// Bridge-with-Polkadot instance id.
/// Polkadot chain id.
pub const POLKADOT_CHAIN_ID: ChainId = *b"pdot";
/// Bridge-with-Kusama instance id.
/// Kusama chain id.
pub const KUSAMA_CHAIN_ID: ChainId = *b"ksma";
/// Bridge-with-Westend instance id.
/// Westend chain id.
pub const WESTEND_CHAIN_ID: ChainId = *b"wend";
/// Bridge-with-Westend instance id.
/// Westend chain id.
pub const WESTMINT_CHAIN_ID: ChainId = *b"wmnt";
/// Bridge-with-Rococo instance id.
/// Rococo chain id.
pub const ROCOCO_CHAIN_ID: ChainId = *b"roco";
/// Bridge-with-Wococo instance id.
/// Wococo chain id.
pub const WOCOCO_CHAIN_ID: ChainId = *b"woco";
/// Bridge-with-BridgeHubRococo instance id.
/// BridgeHubRococo chain id.
pub const BRIDGE_HUB_ROCOCO_CHAIN_ID: ChainId = *b"bhro";
/// Bridge-with-BridgeHubWococo instance id.
/// BridgeHubWococo chain id.
pub const BRIDGE_HUB_WOCOCO_CHAIN_ID: ChainId = *b"bhwo";
/// Call-dispatch module prefix.
pub const CALL_DISPATCH_MODULE_PREFIX: &[u8] = b"pallet-bridge/dispatch";
/// BridgeHubKusama chain id.
pub const BRIDGE_HUB_KUSAMA_CHAIN_ID: ChainId = *b"bhks";
/// A unique prefix for entropy when generating cross-chain account IDs.
pub const ACCOUNT_DERIVATION_PREFIX: &[u8] = b"pallet-bridge/account-derivation/account";
/// A unique prefix for entropy when generating a cross-chain account ID for the Root account.
pub const ROOT_ACCOUNT_DERIVATION_PREFIX: &[u8] = b"pallet-bridge/account-derivation/root";
/// BridgeHubPolkadot chain id.
pub const BRIDGE_HUB_POLKADOT_CHAIN_ID: ChainId = *b"bhwo";
/// Generic header Id.
#[derive(
@@ -164,41 +160,6 @@ impl<Header: HeaderT> HeaderIdProvider<Header> for Header {
/// used for that.
pub type ChainId = [u8; 4];
/// Type of accounts on the source chain.
pub enum SourceAccount<T> {
/// An account that belongs to Root (privileged origin).
Root,
/// A non-privileged account.
///
/// The embedded account ID may or may not have a private key depending on the "owner" of the
/// account (private key, pallet, proxy, etc.).
Account(T),
}
/// Derive an account ID from a foreign account ID.
///
/// This function returns an encoded Blake2 hash. It is the responsibility of the caller to ensure
/// this can be successfully decoded into an AccountId.
///
/// The `bridge_id` is used to provide extra entropy when producing account IDs. This helps prevent
/// AccountId collisions between different bridges on a single target chain.
///
/// Note: If the same `bridge_id` is used across different chains (for example, if one source chain
/// is bridged to multiple target chains), then all the derived accounts would be the same across
/// the different chains. This could negatively impact users' privacy across chains.
pub fn derive_account_id<AccountId>(bridge_id: ChainId, id: SourceAccount<AccountId>) -> H256
where
AccountId: Encode,
{
match id {
SourceAccount::Root =>
(ROOT_ACCOUNT_DERIVATION_PREFIX, bridge_id).using_encoded(blake2_256),
SourceAccount::Account(id) =>
(ACCOUNT_DERIVATION_PREFIX, bridge_id, id).using_encoded(blake2_256),
}
.into()
}
/// Anything that has size.
pub trait Size {
/// Return size of this object (in bytes).