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

* Introduce Tinkernet multisig XCM configs

* fmt fix

* overflow handling, comments, clippy fixes

* Adding Tinkernet XCM configs to xcm-builder

* switching spaces to tab

* remove derivation.rs in favor of location_conversion.rs

* replace hardcoded literals with constants

* autoformat

* Fix for the unit test

* replacing expect with an error and renaming constants

* Resolving clippy warning

---------

Co-authored-by: parity-processbot <>

polkadot/runtime/kusama/src/xcm_config.rs

@@ -41,8 +41,9 @@ use xcm_builder::{
 	ChildParachainConvertsVia, ChildSystemParachainAsSuperuser,
 	CurrencyAdapter as XcmCurrencyAdapter, FixedWeightBounds, IsChildSystemParachain, IsConcrete,
 	MintLocation, OriginToPluralityVoice, SignedAccountId32AsNative, SignedToAccountId32,
-	SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId, UsingComponents,
-	WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
+	SovereignSignedViaLocation, TakeWeightCredit, TinkernetMultisigAsAccountId,
+	TinkernetMultisigAsNative, TrailingSetTopicAsId, UsingComponents, WeightInfoBounds,
+	WithComputedOrigin, WithUniqueTopic,
 };
 use xcm_executor::traits::WithOriginFilter;
 
@@ -70,6 +71,8 @@ pub type SovereignAccountOf = (
 	ChildParachainConvertsVia<ParaId, AccountId>,
 	// We can directly alias an `AccountId32` into a local account.
 	AccountId32Aliases<ThisNetwork, AccountId>,
+	// We can derive a local account from a Tinkernet XCMultisig MultiLocation.
+	TinkernetMultisigAsAccountId<AccountId>,
 );
 
 /// Our asset transactor. This is what allows us to interest with the runtime facilities from the point of
@@ -99,6 +102,8 @@ type LocalOriginConverter = (
 	SignedAccountId32AsNative<ThisNetwork, RuntimeOrigin>,
 	// A system child parachain, expressed as a Superuser, converts to the `Root` origin.
 	ChildSystemParachainAsSuperuser<ParaId, RuntimeOrigin>,
+	// Converts a Tinkernet XCMultisig MultiLocation into a `Signed` origin.
+	TinkernetMultisigAsNative<RuntimeOrigin>,
 );
 
 parameter_types! {