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Grandpa validator set handoff justification (#1190)

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* core: make block justification optional

* runtime: update wasm binaries

* core: optionally pass justification on finalize_block

* finality-grandpa: add channel to trigger authority set changes

this will allow the `BlockImport` to trigger an authority set change when
importing a change block that provides a justification (when syncing)

* finality-grandpa: move finalize_block to free function

* finality-grandpa: add GrandpaOracle for auth set liveness checking

this will be used by `BlockImport` to check whether the authority set for a
given block is still live, if the authority set isn't live then importing a
change block requires a justification.

* finality-grandpa: store justification on finalized transition blocks

* finality-grandpa: check justification on authority set change blocks

* finality-grandpa: poll grandpa liveness oracle every 10 seconds

* finality-grandpa: spawn grandpa oracle in service setup

* core: support multiple subscriptions per consensus gossip topic

* finality-grandpa: create and verify justifications

* finality-grandpa: update to local branch of grandpa

* finality-grandpa: update to finality-grandpa v0.5.0

* finality-grandpa: move grandpa oracle code

* finality-grandpa: fix canonality check

* finality-grandpa: clean up error handling

* finality-grandpa: fix canonical_at_height

* finality-grandpa: fix tests

* runtime: update wasm binaries

* core: add tests for finalizing block with justification

* finality-grandpa: improve validation of justifications

* core: remove unused IncompleteJustification block import error

* core: test multiple subscribers for same consensus gossip topic

* Revert "finality-grandpa: improve validation of justifications"

This reverts commit 51eb2c58c2219801e876af6d6c9371bdd9ff2477.

* finality-grandpa: fix commit validation

* finality-grandpa: fix commit ancestry validation

* finality-grandpa: use grandpa v0.5.1

* finality-grandpa: add docs

* finality-grandpa: fix failing test

* finality-grandpa: only allow a pending authority set change per fork

* finality-grandpa: fix validator set transition test
This commit is contained in:
André Silva
2018-12-08 05:34:59 +00:00
committed by Gav Wood
parent da822276dd
commit e779eeb2ec
29 changed files with 1115 additions and 389 deletions
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substrate/core/client/src/backend.rs
+1 -1
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@@ -107,7 +107,7 @@ pub trait Backend<Block, H>: Send + Sync where
fn commit_operation(&self, transaction: Self::BlockImportOperation) -> error::Result<()>;
/// Finalize block with given Id. This should only be called if the parent of the given
/// block has been finalized.
fn finalize_block(&self, block: BlockId<Block>) -> error::Result<()>;
fn finalize_block(&self, block: BlockId<Block>, justification: Option<Justification>) -> error::Result<()>;
/// Returns reference to blockchain backend.
fn blockchain(&self) -> &Self::Blockchain;
/// Returns reference to changes trie storage.