Grandpa validator set handoff justification (#1190)

* 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
+18 -5
View File
@@ -242,13 +242,26 @@ impl<Block: BlockT> Blockchain<Block> {
self.storage.write().header_cht_roots.insert(block, cht_root);
}
fn finalize_header(&self, id: BlockId<Block>) -> error::Result<()> {
fn finalize_header(&self, id: BlockId<Block>, justification: Option<Justification>) -> error::Result<()> {
let hash = match self.header(id)? {
Some(h) => h.hash(),
None => return Err(error::ErrorKind::UnknownBlock(format!("{}", id)).into()),
};
self.storage.write().finalized_hash = hash;
let mut storage = self.storage.write();
storage.finalized_hash = hash;
if justification.is_some() {
let block = storage.blocks.get_mut(&hash)
.expect("hash was fetched from a block in the db; qed");
let block_justification = match block {
StoredBlock::Header(_, ref mut j) | StoredBlock::Full(_, ref mut j) => j
};
*block_justification = justification;
}
Ok(())
}
@@ -352,7 +365,7 @@ impl<Block: BlockT> light::blockchain::Storage<Block> for Blockchain<Block>
}
fn finalize_header(&self, id: BlockId<Block>) -> error::Result<()> {
Blockchain::finalize_header(self, id)
Blockchain::finalize_header(self, id, None)
}
fn header_cht_root(&self, _cht_size: u64, block: NumberFor<Block>) -> error::Result<Block::Hash> {
@@ -543,8 +556,8 @@ where
Ok(())
}
fn finalize_block(&self, block: BlockId<Block>) -> error::Result<()> {
self.blockchain.finalize_header(block)
fn finalize_block(&self, block: BlockId<Block>, justification: Option<Justification>) -> error::Result<()> {
self.blockchain.finalize_header(block, justification)
}
fn blockchain(&self) -> &Self::Blockchain {