Add validate_xcm_nesting to the ParentAsUmp and ChildParachainRouter#4236
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Add validate_xcm_nesting to the ParentAsUmp and ChildParachainRouter#4236
validate_xcm_nesting to the ParentAsUmp and ChildParachainRouter#4236Conversation
bkontur
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ggwpez
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Apr 22, 2024
franciscoaguirre
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this is not accurate anymore, it is also done inside |
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…Xcm` router (for testing purposes) (#4186) This PR: - adds `EnsureDecodableXcm` (testing) router that attempts to *encode* and *decode* passed XCM `message` to ensure that the receiving side will be able to decode, at least with the same XCM version. - fixes `pallet_xcm` / `pallet_xcm_benchmarks` assets data generation Relates to investigation of https://substrate.stackexchange.com/questions/11288 and missing fix #2129 which did not get into the fellows 1.1.X release. ## Questions/TODOs - [x] fix XCM benchmarks, which produces undecodable data - new router catched at least two cases - `BoundedVec exceeds its limit` - `Fungible asset of zero amount is not allowed` - [x] do we need to add `sort` to the `prepend_with` as we did for reanchor [here](#2129)? @serban300 (**created separate/follow-up PR**: #4235) - [x] We added decoding check to `XcmpQueue` -> `validate_xcm_nesting`, why not to added to the `ParentAsUmp` or `ChildParachainRouter`? @franciscoaguirre (**created separate/follow-up PR**: #4236) - [ ] `SendController::send_blob` replace `VersionedXcm::<()>::decode(` with `VersionedXcm::<()>::decode_with_depth_limit(MAX_XCM_DECODE_DEPTH, data)` ? --------- Co-authored-by: Adrian Catangiu <adrian@parity.io>
This was referenced Jun 5, 2024
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This PR:
validate_xcm_nestingfromXcmpQueueinto theVersionedXcmvalidate_xcm_nestingto theParentAsUmpvalidate_xcm_nestingto theChildParachainRouterBased on discussion here and/or here and/or here
Question/TODO
validate_xcm_nestingadded just to theXcmpQueuerouter and nowhere else? What kind of problemMAX_XCM_DECODE_DEPTHis solving? (see comment)