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Include a reference to the validation data in the candidate descriptor (#1442)

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* rename GlobalValidationSchedule to GlobalValidationData

* guide: update candidate descriptor to contain validation data hash

* guide: add note in inclusion module about checking validation data hash

* primitives: update CandidateDescriptor to contain new hash

* fix payload computation

* add helpers for computing validation data to runtime modules

* guide: note routines

* inclusion: check validation data hash and fix local_validation_data bug

* add a case to candidate_checks and improve that test substantially

* bump versions

* address review comments

* add a test for including code upgrade

* bump kusama version

* bump westend & polkadot versions
This commit is contained in:
Robert Habermeier
2020-07-23 15:02:24 -04:00
committed by GitHub
parent 1ed17cd467
commit 09f602f8de
26 changed files with 434 additions and 175 deletions
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polkadot/roadmap/implementers-guide/src/runtime/inclusion.md
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@@ -62,6 +62,7 @@ All failed checks should lead to an unrecoverable error making the block invalid
1. check that each candidate corresponds to a scheduled core and that they are ordered in the same order the cores appear in assignments in `scheduled`.
1. check that `scheduled` is sorted ascending by `CoreIndex`, without duplicates.
1. check that there is no candidate pending availability for any scheduled `ParaId`.
1. check that each candidate's `validation_data_hash` corresponds to a `(LocalValidationData, GlobalValidationData)` computed from the current state.
1. If the core assignment includes a specific collator, ensure the backed candidate is issued by that collator.
1. Ensure that any code upgrade scheduled by the candidate does not happen within `config.validation_upgrade_frequency` of `Paras::last_code_upgrade(para_id, true)`, if any, comparing against the value of `Paras::FutureCodeUpgrades` for the given para ID.
1. Check the collator's signature on the candidate data.