git.delta.rocks / unique-network / refs/commits / e3544d2eeb78

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617use frame_support::{18	traits::{Everything, Nothing, Get, ConstU32},19	parameter_types,20};21use frame_system::EnsureRoot;22use pallet_xcm::XcmPassthrough;23use polkadot_parachain::primitives::Sibling;24use xcm::latest::{prelude::*, Weight, MultiLocation};25use xcm::v3::Instruction;26use xcm_builder::{27	AccountId32Aliases, EnsureXcmOrigin, FixedWeightBounds, ParentAsSuperuser, RelayChainAsNative,28	SiblingParachainAsNative, SiblingParachainConvertsVia, SignedAccountId32AsNative,29	SignedToAccountId32, SovereignSignedViaLocation, ParentIsPreset,30};31use xcm_executor::{XcmExecutor, traits::ShouldExecute};32use sp_std::marker::PhantomData;33use crate::{34	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, ParachainInfo, ParachainSystem, PolkadotXcm,35	XcmpQueue, xcm_barrier::Barrier, RelayNetwork, AllPalletsWithSystem, Balances,36};3738use up_common::types::AccountId;3940#[cfg(feature = "foreign-assets")]41pub mod foreignassets;4243#[cfg(not(feature = "foreign-assets"))]44pub mod nativeassets;4546#[cfg(feature = "foreign-assets")]47pub use foreignassets as xcm_assets;4849#[cfg(not(feature = "foreign-assets"))]50pub use nativeassets as xcm_assets;5152use xcm_assets::{AssetTransactor, IsReserve, Trader};5354parameter_types! {55	pub const RelayLocation: MultiLocation = MultiLocation::parent();56	pub RelayOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();57	pub UniversalLocation: InteriorMultiLocation = (58		GlobalConsensus(crate::RelayNetwork::get()),59		Parachain(ParachainInfo::get().into()),60	).into();61	pub SelfLocation: MultiLocation = MultiLocation::new(1, X1(Parachain(ParachainInfo::get().into())));6263	// One XCM operation is 1_000_000 weight - almost certainly a conservative estimate.64	pub UnitWeightCost: Weight = Weight::from_parts(1_000_000, 1000); // ?65	pub const MaxInstructions: u32 = 100;66}6768/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used69/// when determining ownership of accounts for asset transacting and when attempting to use XCM70/// `Transact` in order to determine the dispatch Origin.71pub type LocationToAccountId = (72	// The parent (Relay-chain) origin converts to the default `AccountId`.73	ParentIsPreset<AccountId>,74	// Sibling parachain origins convert to AccountId via the `ParaId::into`.75	SiblingParachainConvertsVia<Sibling, AccountId>,76	// Straight up local `AccountId32` origins just alias directly to `AccountId`.77	AccountId32Aliases<RelayNetwork, AccountId>,78);7980/// No local origins on this chain are allowed to dispatch XCM sends/executions.81pub type LocalOriginToLocation = (SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>,);8283/// The means for routing XCM messages which are not for local execution into the right message84/// queues.85pub type XcmRouter = (86	// Two routers - use UMP to communicate with the relay chain:87	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,88	// ..and XCMP to communicate with the sibling chains.89	XcmpQueue,90);9192/// This is the type we use to convert an (incoming) XCM origin into a local `Origin` instance,93/// ready for dispatching a transaction with Xcm's `Transact`. There is an `OriginKind` which can94/// biases the kind of local `Origin` it will become.95pub type XcmOriginToTransactDispatchOrigin = (96	// Sovereign account converter; this attempts to derive an `AccountId` from the origin location97	// using `LocationToAccountId` and then turn that into the usual `Signed` origin. Useful for98	// foreign chains who want to have a local sovereign account on this chain which they control.99	SovereignSignedViaLocation<LocationToAccountId, RuntimeOrigin>,100	// Native converter for Relay-chain (Parent) location; will converts to a `Relay` origin when101	// recognised.102	RelayChainAsNative<RelayOrigin, RuntimeOrigin>,103	// Native converter for sibling Parachains; will convert to a `SiblingPara` origin when104	// recognised.105	SiblingParachainAsNative<cumulus_pallet_xcm::Origin, RuntimeOrigin>,106	// Superuser converter for the Relay-chain (Parent) location. This will allow it to issue a107	// transaction from the Root origin.108	ParentAsSuperuser<RuntimeOrigin>,109	// Native signed account converter; this just converts an `AccountId32` origin into a normal110	// `Origin::Signed` origin of the same 32-byte value.111	SignedAccountId32AsNative<RelayNetwork, RuntimeOrigin>,112	// Xcm origins can be represented natively under the Xcm pallet's Xcm origin.113	XcmPassthrough<RuntimeOrigin>,114);115116pub trait TryPass {117	fn try_pass<Call>(origin: &MultiLocation, message: &mut [Instruction<Call>]) -> Result<(), ()>;118}119120#[impl_trait_for_tuples::impl_for_tuples(30)]121impl TryPass for Tuple {122	fn try_pass<Call>(origin: &MultiLocation, message: &mut [Instruction<Call>]) -> Result<(), ()> {123		for_tuples!( #(124			Tuple::try_pass(origin, message)?;125		)* );126127		Ok(())128	}129}130131/// Deny executing the XCM if it matches any of the Deny filter regardless of anything else.132/// If it passes the Deny, and matches one of the Allow cases then it is let through.133pub struct DenyThenTry<Deny, Allow>(PhantomData<Deny>, PhantomData<Allow>)134where135	Deny: TryPass,136	Allow: ShouldExecute;137138impl<Deny, Allow> ShouldExecute for DenyThenTry<Deny, Allow>139where140	Deny: TryPass,141	Allow: ShouldExecute,142{143	fn should_execute<Call>(144		origin: &MultiLocation,145		message: &mut [Instruction<Call>],146		max_weight: Weight,147		weight_credit: &mut Weight,148	) -> Result<(), ()> {149		Deny::try_pass(origin, message)?;150		Allow::should_execute(origin, message, max_weight, weight_credit)151	}152}153154pub type Weigher = FixedWeightBounds<UnitWeightCost, RuntimeCall, MaxInstructions>;155156pub struct XcmExecutorConfig<T>(PhantomData<T>);157impl<T> xcm_executor::Config for XcmExecutorConfig<T>158where159	T: pallet_configuration::Config,160{161	type RuntimeCall = RuntimeCall;162	type XcmSender = XcmRouter;163	// How to withdraw and deposit an asset.164	type AssetTransactor = AssetTransactor;165	type OriginConverter = XcmOriginToTransactDispatchOrigin;166	type IsReserve = IsReserve;167	type IsTeleporter = (); // Teleportation is disabled168	type UniversalLocation = UniversalLocation;169	type Barrier = Barrier;170	type Weigher = Weigher;171	type Trader = Trader<T>;172	type ResponseHandler = PolkadotXcm;173	type SubscriptionService = PolkadotXcm;174	type PalletInstancesInfo = AllPalletsWithSystem;175	type MaxAssetsIntoHolding = ConstU32<8>;176177	type AssetTrap = PolkadotXcm;178	type AssetClaims = PolkadotXcm;179	type AssetLocker = ();180	type AssetExchanger = ();181	type FeeManager = ();182	type MessageExporter = ();183	type UniversalAliases = Nothing;184	type CallDispatcher = RuntimeCall;185186	// Deny all XCM Transacts.187	type SafeCallFilter = Nothing;188}189190#[cfg(feature = "runtime-benchmarks")]191parameter_types! {192	pub ReachableDest: Option<MultiLocation> = Some(Parent.into());193}194195impl pallet_xcm::Config for Runtime {196	type RuntimeEvent = RuntimeEvent;197	type SendXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, ()>;198	type XcmRouter = XcmRouter;199	type ExecuteXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, LocalOriginToLocation>;200	type XcmExecuteFilter = Everything;201	type XcmExecutor = XcmExecutor<XcmExecutorConfig<Self>>;202	type XcmTeleportFilter = Everything;203	type XcmReserveTransferFilter = Everything;204	type Weigher = FixedWeightBounds<UnitWeightCost, RuntimeCall, MaxInstructions>;205	type RuntimeOrigin = RuntimeOrigin;206	type RuntimeCall = RuntimeCall;207	const VERSION_DISCOVERY_QUEUE_SIZE: u32 = 100;208	type AdvertisedXcmVersion = pallet_xcm::CurrentXcmVersion;209	type UniversalLocation = UniversalLocation;210	type Currency = Balances;211	type CurrencyMatcher = ();212	type TrustedLockers = ();213	type SovereignAccountOf = LocationToAccountId;214	type MaxLockers = ConstU32<8>;215	type WeightInfo = crate::weights::xcm::SubstrateWeight<Runtime>;216	#[cfg(feature = "runtime-benchmarks")]217	type ReachableDest = ReachableDest;218}219220impl cumulus_pallet_xcm::Config for Runtime {221	type RuntimeEvent = RuntimeEvent;222	type XcmExecutor = XcmExecutor<XcmExecutorConfig<Self>>;223}224225impl cumulus_pallet_xcmp_queue::Config for Runtime {226	type WeightInfo = ();227	type RuntimeEvent = RuntimeEvent;228	type XcmExecutor = XcmExecutor<XcmExecutorConfig<Self>>;229	type ChannelInfo = ParachainSystem;230	type VersionWrapper = PolkadotXcm;231	type ExecuteOverweightOrigin = frame_system::EnsureRoot<AccountId>;232	type ControllerOrigin = EnsureRoot<AccountId>;233	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;234	type PriceForSiblingDelivery = ();235}236237impl cumulus_pallet_dmp_queue::Config for Runtime {238	type RuntimeEvent = RuntimeEvent;239	type XcmExecutor = XcmExecutor<XcmExecutorConfig<Self>>;240	type ExecuteOverweightOrigin = frame_system::EnsureRoot<AccountId>;241}