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// Copyright 2023 Parity Technologies (UK) Ltd.
// This file is part of Cumulus.
// Cumulus is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Cumulus is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Cumulus. If not, see <http://www.gnu.org/licenses/>.
use super::{
AccountId, AllPalletsWithSystem, Balances, BaseDeliveryFee, Broker, FeeAssetId, ParachainInfo,
ParachainSystem, PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
TransactionByteFee, WeightToFee, XcmpQueue,
};
use frame_support::{
pallet_prelude::PalletInfoAccess,
traits::{tokens::imbalance::ResolveTo, ConstU32, Contains, Equals, Everything, Nothing},
use pallet_collator_selection::StakingPotAccountId;
use pallet_xcm::XcmPassthrough;
use parachains_common::{
xcm_config::{
AllSiblingSystemParachains, ConcreteAssetFromSystem, ParentRelayOrSiblingParachains,
RelayOrOtherSystemParachains,
},
TREASURY_PALLET_ID,
};
use polkadot_parachain_primitives::primitives::Sibling;
use polkadot_runtime_common::xcm_sender::ExponentialPrice;
use sp_runtime::traits::AccountIdConversion;
use xcm::latest::prelude::*;
use xcm_builder::{
AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
AllowSubscriptionsFrom, AllowTopLevelPaidExecutionFrom, DenyReserveTransferToRelayChain,
Branislav Kontur
committed
DenyThenTry, EnsureXcmOrigin, FrameTransactionalProcessor, FungibleAdapter, IsConcrete,
NonFungibleAdapter, ParentAsSuperuser, ParentIsPreset, RelayChainAsNative,
SiblingParachainAsNative, SiblingParachainConvertsVia, SignedAccountId32AsNative,
SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId,
UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
XcmFeeManagerFromComponents, XcmFeeToAccount,
use xcm_executor::XcmExecutor;
pub const TokenRelayLocation: Location = Location::parent();
pub const RelayNetwork: Option<NetworkId> = Some(NetworkId::Westend);
pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
pub UniversalLocation: InteriorLocation =
[GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(ParachainInfo::parachain_id().into())].into();
pub BrokerPalletLocation: Location =
PalletInstance(<Broker as PalletInfoAccess>::index() as u8).into();
pub const MaxInstructions: u32 = 100;
pub const MaxAssetsIntoHolding: u32 = 64;
pub FellowshipLocation: Location = Location::new(1, Parachain(1001));
pub const GovernanceLocation: Location = Location::parent();
/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
/// when determining ownership of accounts for asset transacting and when attempting to use XCM
/// `Transact` in order to determine the dispatch Origin.
pub type LocationToAccountId = (
// The parent (Relay-chain) origin converts to the parent `AccountId`.
ParentIsPreset<AccountId>,
// Sibling parachain origins convert to AccountId via the `ParaId::into`.
SiblingParachainConvertsVia<Sibling, AccountId>,
// Straight up local `AccountId32` origins just alias directly to `AccountId`.
AccountId32Aliases<RelayNetwork, AccountId>,
);
/// Means for transacting the native currency on this chain.
pub type FungibleTransactor = FungibleAdapter<
// Use this currency:
Balances,
// Use this currency when it is a fungible asset matching the given location or name:
IsConcrete<TokenRelayLocation>,
// Do a simple punn to convert an `AccountId32` `Location` into a native chain
// `AccountId`:
LocationToAccountId,
// Our chain's `AccountId` type (we can't get away without mentioning it explicitly):
AccountId,
// We don't track any teleports of `Balances`.
(),
>;
/// Means for transacting coretime regions on this chain.
pub type RegionTransactor = NonFungibleAdapter<
// Use this non-fungible implementation:
Broker,
// This adapter will handle coretime regions from the broker pallet.
IsConcrete<BrokerPalletLocation>,
// Convert an XCM Location into a local account id:
LocationToAccountId,
// Our chain's account ID type (we can't get away without mentioning it explicitly):
AccountId,
// We don't track any teleports.
(),
>;
/// Means for transacting assets on this chain.
pub type AssetTransactors = (FungibleTransactor, RegionTransactor);
/// This is the type we use to convert an (incoming) XCM origin into a local `Origin` instance,
/// ready for dispatching a transaction with XCM's `Transact`. There is an `OriginKind` that can
/// bias the kind of local `Origin` it will become.
pub type XcmOriginToTransactDispatchOrigin = (
// Sovereign account converter; this attempts to derive an `AccountId` from the origin location
// using `LocationToAccountId` and then turn that into the usual `Signed` origin. Useful for
// foreign chains who want to have a local sovereign account on this chain that they control.
SovereignSignedViaLocation<LocationToAccountId, RuntimeOrigin>,
// Native converter for Relay-chain (Parent) location; will convert to a `Relay` origin when
// recognized.
RelayChainAsNative<RelayChainOrigin, RuntimeOrigin>,
// Native converter for sibling Parachains; will convert to a `SiblingPara` origin when
// recognized.
SiblingParachainAsNative<cumulus_pallet_xcm::Origin, RuntimeOrigin>,
// Superuser converter for the Relay-chain (Parent) location. This will allow it to issue a
// transaction from the Root origin.
ParentAsSuperuser<RuntimeOrigin>,
// Native signed account converter; this just converts an `AccountId32` origin into a normal
// `RuntimeOrigin::Signed` origin of the same 32-byte value.
SignedAccountId32AsNative<RelayNetwork, RuntimeOrigin>,
// XCM origins can be represented natively under the XCM pallet's `Xcm` origin.
XcmPassthrough<RuntimeOrigin>,
);
pub struct ParentOrParentsPlurality;
impl Contains<Location> for ParentOrParentsPlurality {
fn contains(location: &Location) -> bool {
matches!(location.unpack(), (1, []) | (1, [Plurality { .. }]))
}
}
pub struct FellowsPlurality;
impl Contains<Location> for FellowsPlurality {
fn contains(location: &Location) -> bool {
matches!(location.unpack(), (1, [Parachain(1001), Plurality { id: BodyId::Technical, .. }]))
}
}
pub type Barrier = TrailingSetTopicAsId<
DenyThenTry<
DenyReserveTransferToRelayChain,
(
// Allow local users to buy weight credit.
TakeWeightCredit,
// Expected responses are OK.
AllowKnownQueryResponses<PolkadotXcm>,
WithComputedOrigin<
(
// If the message is one that immediately attempts to pay for execution, then
// allow it.
AllowTopLevelPaidExecutionFrom<Everything>,
// Parent, its pluralities (i.e. governance bodies), and the Fellows plurality
// get free execution.
AllowExplicitUnpaidExecutionFrom<(ParentOrParentsPlurality, FellowsPlurality)>,
// Subscriptions for version tracking are OK.
AllowSubscriptionsFrom<ParentRelayOrSiblingParachains>,
),
UniversalLocation,
ConstU32<8>,
>,
),
>,
>;
parameter_types! {
pub TreasuryAccount: AccountId = TREASURY_PALLET_ID.into_account_truncating();
pub RelayTreasuryLocation: Location = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
/// Locations that will not be charged fees in the executor, neither for execution nor delivery.
/// We only waive fees for system functions, which these locations represent.
pub type WaivedLocations = (
RelayOrOtherSystemParachains<AllSiblingSystemParachains, Runtime>,
Equals<RelayTreasuryLocation>,
);
pub struct XcmConfig;
impl xcm_executor::Config for XcmConfig {
type RuntimeCall = RuntimeCall;
type XcmSender = XcmRouter;
type AssetTransactor = AssetTransactors;
type OriginConverter = XcmOriginToTransactDispatchOrigin;
// Coretime chain does not recognize a reserve location for any asset. Users must teleport ROC
// where allowed (e.g. with the Relay Chain).
type IsReserve = ();
/// Only allow teleportation of WND.
type IsTeleporter = ConcreteAssetFromSystem<TokenRelayLocation>;
type UniversalLocation = UniversalLocation;
type Barrier = Barrier;
type Weigher = WeightInfoBounds<
crate::weights::xcm::CoretimeWestendXcmWeight<RuntimeCall>,
RuntimeCall,
MaxInstructions,
>;
type Trader = UsingComponents<
WeightToFee,
TokenRelayLocation,
AccountId,
Balances,
ResolveTo<StakingPotAccountId<Runtime>, Balances>,
type ResponseHandler = PolkadotXcm;
type AssetTrap = PolkadotXcm;
type AssetClaims = PolkadotXcm;
type SubscriptionService = PolkadotXcm;
type PalletInstancesInfo = AllPalletsWithSystem;
type MaxAssetsIntoHolding = MaxAssetsIntoHolding;
type AssetLocker = ();
type AssetExchanger = ();
type FeeManager = XcmFeeManagerFromComponents<
WaivedLocations,
XcmFeeToAccount<Self::AssetTransactor, AccountId, TreasuryAccount>,
>;
type MessageExporter = ();
type UniversalAliases = Nothing;
type CallDispatcher = RuntimeCall;
type SafeCallFilter = Everything;
type TransactionalProcessor = FrameTransactionalProcessor;
type HrmpNewChannelOpenRequestHandler = ();
type HrmpChannelAcceptedHandler = ();
type HrmpChannelClosingHandler = ();
/// Converts a local signed origin into an XCM location. Forms the basis for local origins
/// sending/executing XCMs.
pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
pub type PriceForParentDelivery =
ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
/// The means for routing XCM messages which are not for local execution into the right message
/// queues.
pub type XcmRouter = WithUniqueTopic<(
// Two routers - use UMP to communicate with the relay chain:
cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
// ..and XCMP to communicate with the sibling chains.
XcmpQueue,
)>;
impl pallet_xcm::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
// We want to disallow users sending (arbitrary) XCM programs from this chain.
type SendXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, ()>;
type XcmRouter = XcmRouter;
// We support local origins dispatching XCM executions.
type ExecuteXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, LocalOriginToLocation>;
type XcmExecuteFilter = Everything;
type XcmExecutor = XcmExecutor<XcmConfig>;
type XcmTeleportFilter = Everything;
type XcmReserveTransferFilter = Everything;
type Weigher = WeightInfoBounds<
crate::weights::xcm::CoretimeWestendXcmWeight<RuntimeCall>,
RuntimeCall,
MaxInstructions,
>;
type UniversalLocation = UniversalLocation;
type RuntimeOrigin = RuntimeOrigin;
type RuntimeCall = RuntimeCall;
const VERSION_DISCOVERY_QUEUE_SIZE: u32 = 100;
type AdvertisedXcmVersion = pallet_xcm::CurrentXcmVersion;
type Currency = Balances;
type CurrencyMatcher = ();
type TrustedLockers = ();
type SovereignAccountOf = LocationToAccountId;
type MaxLockers = ConstU32<8>;
type WeightInfo = crate::weights::pallet_xcm::WeightInfo<Runtime>;
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
}
impl cumulus_pallet_xcm::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
type XcmExecutor = XcmExecutor<XcmConfig>;
}