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pass source and target chain ids to account_ownership_proof (#963)

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Svyatoslav Nikolsky
2021-05-13 13:04:11 +03:00
committed by Bastian Köcher
parent 20d94e093a
commit ff7f8ad098
22 changed files with 149 additions and 115 deletions
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bridges/primitives/runtime/src/lib.rs
+16 -14
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@@ -33,25 +33,25 @@ mod chain;
mod storage_proof;
/// Use this when something must be shared among all instances.
pub const NO_INSTANCE_ID: InstanceId = [0, 0, 0, 0];
pub const NO_INSTANCE_ID: ChainId = [0, 0, 0, 0];
/// Bridge-with-Rialto instance id.
pub const RIALTO_BRIDGE_INSTANCE: InstanceId = *b"rlto";
pub const RIALTO_CHAIN_ID: ChainId = *b"rlto";
/// Bridge-with-Millau instance id.
pub const MILLAU_BRIDGE_INSTANCE: InstanceId = *b"mlau";
pub const MILLAU_CHAIN_ID: ChainId = *b"mlau";
/// Bridge-with-Polkadot instance id.
pub const POLKADOT_BRIDGE_INSTANCE: InstanceId = *b"pdot";
pub const POLKADOT_CHAIN_ID: ChainId = *b"pdot";
/// Bridge-with-Kusama instance id.
pub const KUSAMA_BRIDGE_INSTANCE: InstanceId = *b"ksma";
pub const KUSAMA_CHAIN_ID: ChainId = *b"ksma";
/// Bridge-with-Rococo instance id.
pub const ROCOCO_BRIDGE_INSTANCE: InstanceId = *b"roco";
pub const ROCOCO_CHAIN_ID: ChainId = *b"roco";
/// Bridge-with-Wococo instance id.
pub const WOCOCO_BRIDGE_INSTANCE: InstanceId = *b"woco";
pub const WOCOCO_CHAIN_ID: ChainId = *b"woco";
/// Call-dispatch module prefix.
pub const CALL_DISPATCH_MODULE_PREFIX: &[u8] = b"pallet-bridge/dispatch";
@@ -62,11 +62,13 @@ pub const ACCOUNT_DERIVATION_PREFIX: &[u8] = b"pallet-bridge/account-derivation/
/// 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";
/// Id of deployed module instance. We have a bunch of pallets that may be used in
/// different bridges. E.g. messages pallet may be deployed twice in the same
/// runtime to bridge ThisChain with Chain1 and Chain2. Sometimes we need to be able
/// to identify deployed instance dynamically. This type is used for that.
pub type InstanceId = [u8; 4];
/// Unique identifier of the chain.
///
/// In addition to its main function (identifying the chain), this type may also be used to
/// identify module instance. We have a bunch of pallets that may be used in different bridges. E.g.
/// messages pallet may be deployed twice in the same runtime to bridge ThisChain with Chain1 and Chain2.
/// Sometimes we need to be able to identify deployed instance dynamically. This type may be used for that.
pub type ChainId = [u8; 4];
/// Type of accounts on the source chain.
pub enum SourceAccount<T> {
@@ -90,7 +92,7 @@ pub enum SourceAccount<T> {
/// 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: InstanceId, id: SourceAccount<AccountId>) -> H256
pub fn derive_account_id<AccountId>(bridge_id: ChainId, id: SourceAccount<AccountId>) -> H256
where
AccountId: Encode,
{
@@ -107,7 +109,7 @@ where
///
/// The account ID can be the same across different instances of `pallet-bridge-messages` if the same
/// `bridge_id` is used.
pub fn derive_relayer_fund_account_id(bridge_id: InstanceId) -> H256 {
pub fn derive_relayer_fund_account_id(bridge_id: ChainId) -> H256 {
("relayer-fund-account", bridge_id).using_encoded(blake2_256).into()
}