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Deny using relay chain for reserve transfers (#1169)

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* Deny using relay chain for reserve transfers

* match on junction as well.

* Update polkadot-parachains/parachains-common/src/xcm_config.rs

* Use Err to signal deny

* Deny depisiting reserved assets + fmt

* Allow DepositReserveAssets from relay chain

Deny InitiateReserveWithdrawal

* Rather than allow DepositReserveAsset,

it was ReservAssetDeposited that should be allowed but logged.

* don't reference common parachains.

* Update parachain-template/runtime/src/xcm_config.rs

* Warn if reserve asset deposited msg detected.

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
This commit is contained in:
Squirrel
2022-04-20 10:14:08 +01:00
committed by GitHub
parent a696224a30
commit fafe1f1b47
7 changed files with 209 additions and 51 deletions
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cumulus/polkadot-parachains/westmint/src/xcm_config.rs
+17 -11
View File
@@ -23,7 +23,10 @@ use frame_support::{
weights::Weight,
};
use pallet_xcm::XcmPassthrough;
use parachains_common::impls::ToStakingPot;
use parachains_common::{
impls::ToStakingPot,
xcm_config::{DenyReserveTransferToRelayChain, DenyThenTry},
};
use polkadot_parachain::primitives::Sibling;
use xcm::latest::prelude::*;
use xcm_builder::{
@@ -135,16 +138,19 @@ match_types! {
};
}
pub type Barrier = (
TakeWeightCredit,
AllowTopLevelPaidExecutionFrom<Everything>,
// Parent and its plurality get free execution
AllowUnpaidExecutionFrom<ParentOrParentsPlurality>,
// Expected responses are OK.
AllowKnownQueryResponses<PolkadotXcm>,
// Subscriptions for version tracking are OK.
AllowSubscriptionsFrom<Everything>,
);
pub type Barrier = DenyThenTry<
DenyReserveTransferToRelayChain,
(
TakeWeightCredit,
AllowTopLevelPaidExecutionFrom<Everything>,
// Parent and its plurality get free execution
AllowUnpaidExecutionFrom<ParentOrParentsPlurality>,
// Expected responses are OK.
AllowKnownQueryResponses<PolkadotXcm>,
// Subscriptions for version tracking are OK.
AllowSubscriptionsFrom<Everything>,
),
>;
pub struct XcmConfig;
impl xcm_executor::Config for XcmConfig {