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Revert "Introduce Tinkernet multisig XCM configs to Kusama/Rococo through xcm-builder (#7165)" (#7446)

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This reverts commit af99520569.
This commit is contained in:
Gavin Wood
2023-06-30 14:38:21 +02:00
committed by GitHub
parent 15a03d4951
commit 1492a454e9
7 changed files with 8 additions and 124 deletions
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polkadot/xcm/xcm-builder/src/location_conversion.rs
-67
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@@ -17,7 +17,6 @@
use crate::universal_exports::ensure_is_remote;
use frame_support::traits::Get;
use parity_scale_codec::{Compact, Decode, Encode};
use sp_core::H256;
use sp_io::hashing::blake2_256;
use sp_runtime::traits::{AccountIdConversion, Convert, TrailingZeroInput};
use sp_std::{marker::PhantomData, prelude::*};
@@ -346,52 +345,6 @@ impl<Network: Get<Option<NetworkId>>, AccountId: From<[u8; 20]> + Into<[u8; 20]>
}
}
/// Tinkernet ParaId used when matching Multisig MultiLocations.
pub const KUSAMA_TINKERNET_PARA_ID: u32 = 2125;
/// Tinkernet Multisig pallet instance used when matching Multisig MultiLocations.
pub const KUSAMA_TINKERNET_MULTISIG_PALLET: u8 = 71;
/// Constant derivation function for Tinkernet Multisigs.
/// Uses the Tinkernet genesis hash as a salt.
pub fn derive_tinkernet_multisig<AccountId: Decode>(id: u128) -> Result<AccountId, ()> {
AccountId::decode(&mut TrailingZeroInput::new(
&(
// The constant salt used to derive Tinkernet Multisigs, this is Tinkernet's genesis hash.
H256([
212, 46, 150, 6, 169, 149, 223, 228, 51, 220, 121, 85, 220, 42, 112, 244, 149, 243,
80, 243, 115, 218, 162, 0, 9, 138, 232, 68, 55, 129, 106, 210,
]),
// The actual multisig integer id.
u32::try_from(id).map_err(|_| ())?,
)
.using_encoded(blake2_256),
))
.map_err(|_| ())
}
/// Convert a Tinkernet Multisig `MultiLocation` value into a local `AccountId`.
pub struct TinkernetMultisigAsAccountId<AccountId>(PhantomData<AccountId>);
impl<AccountId: Decode + Clone> ConvertLocation<AccountId>
for TinkernetMultisigAsAccountId<AccountId>
{
fn convert_location(location: &MultiLocation) -> Option<AccountId> {
match location {
MultiLocation {
parents: _,
interior:
X3(
Parachain(KUSAMA_TINKERNET_PARA_ID),
PalletInstance(KUSAMA_TINKERNET_MULTISIG_PALLET),
// Index from which the multisig account is derived.
GeneralIndex(id),
),
} => derive_tinkernet_multisig(*id).ok(),
_ => None,
}
}
}
/// Converts a location which is a top-level parachain (i.e. a parachain held on a
/// Relay-chain which provides its own consensus) into a 32-byte `AccountId`.
///
@@ -836,24 +789,4 @@ mod tests {
};
assert!(ForeignChainAliasAccount::<[u8; 32]>::convert_location(&mul).is_none());
}
#[test]
fn remote_tinkernet_multisig_convert_to_account() {
let mul = MultiLocation {
parents: 0,
interior: X3(
Parachain(KUSAMA_TINKERNET_PARA_ID),
PalletInstance(KUSAMA_TINKERNET_MULTISIG_PALLET),
GeneralIndex(0),
),
};
assert_eq!(
[
97, 160, 244, 60, 133, 145, 170, 26, 202, 108, 203, 156, 114, 116, 175, 30, 156,
195, 43, 101, 243, 51, 193, 162, 152, 188, 30, 165, 244, 81, 70, 90
],
TinkernetMultisigAsAccountId::<[u8; 32]>::convert_location(&mul).unwrap()
);
}
}