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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/parachains/common/src/xcm_config.rs
+2 -76
View File
@@ -1,86 +1,12 @@
use crate::impls::AccountIdOf;
use core::{marker::PhantomData, ops::ControlFlow};
use core::marker::PhantomData;
use frame_support::{
log,
traits::{
fungibles::Inspect, tokens::ConversionToAssetBalance, ContainsPair, ProcessMessageError,
},
traits::{fungibles::Inspect, tokens::ConversionToAssetBalance, ContainsPair},
weights::Weight,
};
use sp_runtime::traits::Get;
use xcm::latest::prelude::*;
use xcm_builder::{CreateMatcher, MatchXcm};
use xcm_executor::traits::ShouldExecute;
//TODO: move DenyThenTry to polkadot's xcm module.
/// Deny executing the XCM 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(())
}
}
/// A `ChargeFeeInFungibles` implementation that converts the output of
/// a given WeightToFee implementation an amount charged in