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Allow relay chain council to send XCMs (#5597)

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* Allow relay chain council to send XCMs

* Update runtime/kusama/src/xcm_config.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* spellcheck

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: joepetrowski <joe@parity.io>
This commit is contained in:
Keith Yeung
2022-06-16 15:37:49 +02:00
committed by GitHub
parent a3125b9f47
commit 2dfc7cec47
2 changed files with 23 additions and 17 deletions
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polkadot/runtime/kusama/src/xcm_config.rs
+13 -10
View File
@@ -152,26 +152,29 @@ parameter_types! {
pub const CouncilBodyId: BodyId = BodyId::Executive; pub const CouncilBodyId: BodyId = BodyId::Executive;
} }
/// Type to convert the council origin to a Plurality `MultiLocation` value.
pub type CouncilToPlurality = BackingToPlurality<
Origin,
pallet_collective::Origin<Runtime, CouncilCollective>,
CouncilBodyId,
>;
/// Type to convert an `Origin` type value into a `MultiLocation` value which represents an interior location /// Type to convert an `Origin` type value into a `MultiLocation` value which represents an interior location
/// of this chain. /// of this chain.
pub type LocalOriginToLocation = ( pub type LocalOriginToLocation = (
// We allow an origin from the Collective pallet to be used in XCM as a corresponding Plurality of the // We allow an origin from the Collective pallet to be used in XCM as a corresponding Plurality of the
// `Unit` body. // `Unit` body.
BackingToPlurality< CouncilToPlurality,
Origin,
pallet_collective::Origin<Runtime, CouncilCollective>,
CouncilBodyId,
>,
// And a usual Signed origin to be used in XCM as a corresponding AccountId32 // And a usual Signed origin to be used in XCM as a corresponding AccountId32
SignedToAccountId32<Origin, AccountId, KusamaNetwork>, SignedToAccountId32<Origin, AccountId, KusamaNetwork>,
); );
impl pallet_xcm::Config for Runtime { impl pallet_xcm::Config for Runtime {
type Event = Event; type Event = Event;
// We don't allow any messages to be sent via the transaction yet. This is basically safe to // We only allow the council to send messages. This is basically safe to enable for everyone
// enable, (safe the possibility of someone spamming the parachain if they're willing to pay // (safe the possibility of someone spamming the parachain if they're willing to pay the KSM to
// the DOT to send from the Relay-chain). But it's useless until we bring in XCM v3 which will // send from the Relay-chain), but it's useless until we bring in XCM v3 which will make
// make `DescendOrigin` a bit more useful. // `DescendOrigin` a bit more useful.
type SendXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, ()>; type SendXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, CouncilToPlurality>;
type XcmRouter = XcmRouter; type XcmRouter = XcmRouter;
// Anyone can execute XCM messages locally. // Anyone can execute XCM messages locally.
type ExecuteXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, LocalOriginToLocation>; type ExecuteXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, LocalOriginToLocation>;
polkadot/runtime/polkadot/src/xcm_config.rs
+10 -7
View File
@@ -157,24 +157,27 @@ parameter_types! {
pub const AdvertisedXcmVersion: u32 = 2; pub const AdvertisedXcmVersion: u32 = 2;
} }
/// Type to convert a council origin to a Plurality `MultiLocation` value.
pub type CouncilToPlurality = BackingToPlurality<
Origin,
pallet_collective::Origin<Runtime, CouncilCollective>,
CouncilBodyId,
>;
/// Type to convert an `Origin` type value into a `MultiLocation` value which represents an interior location /// Type to convert an `Origin` type value into a `MultiLocation` value which represents an interior location
/// of this chain. /// of this chain.
pub type LocalOriginToLocation = ( pub type LocalOriginToLocation = (
// We allow an origin from the Collective pallet to be used in XCM as a corresponding Plurality of the // We allow an origin from the Collective pallet to be used in XCM as a corresponding Plurality of the
// `Unit` body. // `Unit` body.
BackingToPlurality< CouncilToPlurality,
Origin,
pallet_collective::Origin<Runtime, CouncilCollective>,
CouncilBodyId,
>,
// And a usual Signed origin to be used in XCM as a corresponding AccountId32 // And a usual Signed origin to be used in XCM as a corresponding AccountId32
SignedToAccountId32<Origin, AccountId, PolkadotNetwork>, SignedToAccountId32<Origin, AccountId, PolkadotNetwork>,
); );
impl pallet_xcm::Config for Runtime { impl pallet_xcm::Config for Runtime {
type Event = Event; type Event = Event;
// Not much use in sending XCM at this point. // Only allow the council to send messages.
type SendXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, ()>; // == Deny All type SendXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, CouncilToPlurality>;
type XcmRouter = XcmRouter; type XcmRouter = XcmRouter;
// Anyone can execute XCM messages locally... // Anyone can execute XCM messages locally...
type ExecuteXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, LocalOriginToLocation>; type ExecuteXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, LocalOriginToLocation>;