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Companion for polkadot#7234 (XCM: Tools for uniquely referencing messages) (#2601)

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* Fixes for new API

* Formatting

* Fixes

* Fixes

* Further fixes

* XCMP dispatch events mention message ID

* XCMP event includes ID

* Add DMP message ID functionality

* Integrate into test parachains

* Remove WithUniqueTopic usage

* Use new primitive

* Formatting

* undiener

* Revert lock

* Fixes

* Fixes

* Fixes

* Fixes

* Formatting

* message_hash becomes message_id

* Rename

* Another Rename

* Fixes

* Fix

* Bump

* Fixes

* Grumble.
This commit is contained in:
Gavin Wood
2023-05-25 16:52:38 +01:00
committed by GitHub
parent febea66397
commit ec21c0a24d
23 changed files with 431 additions and 569 deletions
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cumulus/parachain-template/runtime/src/xcm_config.rs
+26 -92
View File
@@ -2,10 +2,9 @@ use super::{
AccountId, AllPalletsWithSystem, Balances, ParachainInfo, ParachainSystem, PolkadotXcm,
Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, WeightToFee, XcmpQueue,
};
use core::{marker::PhantomData, ops::ControlFlow};
use frame_support::{
log, match_types, parameter_types,
traits::{ConstU32, Everything, Nothing, ProcessMessageError},
match_types, parameter_types,
traits::{ConstU32, Everything, Nothing},
weights::Weight,
};
use frame_system::EnsureRoot;
@@ -15,12 +14,13 @@ use polkadot_runtime_common::impls::ToAuthor;
use xcm::latest::prelude::*;
use xcm_builder::{
AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowTopLevelPaidExecutionFrom,
CreateMatcher, CurrencyAdapter, EnsureXcmOrigin, FixedWeightBounds, IsConcrete, MatchXcm,
NativeAsset, ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative,
SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
SovereignSignedViaLocation, TakeWeightCredit, UsingComponents, WithComputedOrigin,
CurrencyAdapter, DenyReserveTransferToRelayChain, DenyThenTry, EnsureXcmOrigin,
FixedWeightBounds, IsConcrete, NativeAsset, ParentIsPreset, RelayChainAsNative,
SiblingParachainAsNative, SiblingParachainConvertsVia, SignedAccountId32AsNative,
SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId,
UsingComponents, WithComputedOrigin, WithUniqueTopic,
};
use xcm_executor::{traits::ShouldExecute, XcmExecutor};
use xcm_executor::XcmExecutor;
parameter_types! {
pub const RelayLocation: MultiLocation = MultiLocation::parent();
@@ -90,88 +90,22 @@ match_types! {
};
}
//TODO: move DenyThenTry to polkadot's xcm module.
/// Deny executing the xcm message if it matches any of the Deny filter regardless of anything else.
/// If it passes the Deny, and matches one of the Allow cases then it is let through.
pub struct DenyThenTry<Deny, Allow>(PhantomData<Deny>, PhantomData<Allow>)
where
Deny: ShouldExecute,
Allow: ShouldExecute;
impl<Deny, Allow> ShouldExecute for DenyThenTry<Deny, Allow>
where
Deny: ShouldExecute,
Allow: ShouldExecute,
{
fn should_execute<RuntimeCall>(
origin: &MultiLocation,
message: &mut [Instruction<RuntimeCall>],
max_weight: Weight,
weight_credit: &mut Weight,
) -> Result<(), ProcessMessageError> {
Deny::should_execute(origin, message, max_weight, weight_credit)?;
Allow::should_execute(origin, message, max_weight, weight_credit)
}
}
// See issue <https://github.com/paritytech/polkadot/issues/5233>
pub struct DenyReserveTransferToRelayChain;
impl ShouldExecute for DenyReserveTransferToRelayChain {
fn should_execute<RuntimeCall>(
origin: &MultiLocation,
message: &mut [Instruction<RuntimeCall>],
_max_weight: Weight,
_weight_credit: &mut Weight,
) -> Result<(), ProcessMessageError> {
message.matcher().match_next_inst_while(
|_| true,
|inst| match inst {
InitiateReserveWithdraw {
reserve: MultiLocation { parents: 1, interior: Here },
..
} |
DepositReserveAsset {
dest: MultiLocation { parents: 1, interior: Here }, ..
} |
TransferReserveAsset {
dest: MultiLocation { parents: 1, interior: Here }, ..
} => {
Err(ProcessMessageError::Unsupported) // Deny
},
// An unexpected reserve transfer has arrived from the Relay Chain. Generally,
// `IsReserve` should not allow this, but we just log it here.
ReserveAssetDeposited { .. }
if matches!(origin, MultiLocation { parents: 1, interior: Here }) =>
{
log::warn!(
target: "xcm::barrier",
"Unexpected ReserveAssetDeposited from the Relay Chain",
);
Ok(ControlFlow::Continue(()))
},
_ => Ok(ControlFlow::Continue(())),
},
)?;
// Permit everything else
Ok(())
}
}
pub type Barrier = DenyThenTry<
DenyReserveTransferToRelayChain,
(
TakeWeightCredit,
WithComputedOrigin<
(
AllowTopLevelPaidExecutionFrom<Everything>,
AllowExplicitUnpaidExecutionFrom<ParentOrParentsExecutivePlurality>,
// ^^^ Parent and its exec plurality get free execution
),
UniversalLocation,
ConstU32<8>,
>,
),
pub type Barrier = TrailingSetTopicAsId<
DenyThenTry<
DenyReserveTransferToRelayChain,
(
TakeWeightCredit,
WithComputedOrigin<
(
AllowTopLevelPaidExecutionFrom<Everything>,
AllowExplicitUnpaidExecutionFrom<ParentOrParentsExecutivePlurality>,
// ^^^ Parent and its exec plurality get free execution
),
UniversalLocation,
ConstU32<8>,
>,
),
>,
>;
pub struct XcmConfig;
@@ -208,12 +142,12 @@ pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, R
/// The means for routing XCM messages which are not for local execution into the right message
/// queues.
pub type XcmRouter = (
pub type XcmRouter = WithUniqueTopic<(
// Two routers - use UMP to communicate with the relay chain:
cumulus_primitives_utility::ParentAsUmp<ParachainSystem, (), ()>,
// ..and XCMP to communicate with the sibling chains.
XcmpQueue,
);
)>;
#[cfg(feature = "runtime-benchmarks")]
parameter_types! {