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reject too large (by size) messages (#551)

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This commit is contained in:
Svyatoslav Nikolsky
2020-12-04 14:14:39 +03:00
committed by Bastian Köcher
parent f1949c6342
commit 81a3e7cce3
7 changed files with 127 additions and 17 deletions
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bridges/bin/rialto/runtime/src/millau_messages.rs
+5 -6
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@@ -88,6 +88,10 @@ impl MessageBridge for WithMillauMessageBridge {
type ThisChain = Rialto;
type BridgedChain = Millau;
fn maximal_extrinsic_size_on_target_chain() -> u32 {
bp_millau::MAXIMUM_EXTRINSIC_SIZE
}
fn weight_limits_of_message_on_bridged_chain(message_payload: &[u8]) -> RangeInclusive<Weight> {
// we don't want to relay too large messages + keep reserve for future upgrades
let upper_limit = bp_millau::MAXIMUM_EXTRINSIC_WEIGHT / 2;
@@ -167,12 +171,7 @@ impl TargetHeaderChain<ToMillauMessagePayload, bp_millau::AccountId> for Millau
type MessagesDeliveryProof = ToMillauMessagesDeliveryProof;
fn verify_message(payload: &ToMillauMessagePayload) -> Result<(), Self::Error> {
let weight_limits = WithMillauMessageBridge::weight_limits_of_message_on_bridged_chain(&payload.call);
if !weight_limits.contains(&payload.weight) {
return Err("Incorrect message weight declared");
}
Ok(())
messages::source::verify_chain_message::<WithMillauMessageBridge>(payload)
}
fn verify_messages_delivery_proof(