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GRANDPA finality proof draft (#1268)

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* grandpa finality proof

* prove GrandpaApi::grandpa_authorities using parent block + some docs

* create justification when consensus data is changed

* generate justifications periodically

* test for ConsensusChanges
This commit is contained in:
Svyatoslav Nikolsky
2019-01-11 21:25:03 +03:00
committed by Gav Wood
parent 677b79765b
commit 616716cb4b
18 changed files with 786 additions and 113 deletions
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substrate/core/network/src/test/mod.rs
+14 -3
View File
@@ -27,9 +27,10 @@ use std::sync::Arc;
use parking_lot::RwLock;
use client;
use client::block_builder::BlockBuilder;
use primitives::Ed25519AuthorityId;
use runtime_primitives::Justification;
use runtime_primitives::generic::BlockId;
use runtime_primitives::traits::{Block as BlockT, Zero, AuthorityIdFor};
use runtime_primitives::traits::{Block as BlockT, Zero, Header, Digest, DigestItem, AuthorityIdFor};
use io::SyncIo;
use protocol::{Context, Protocol, ProtocolContext};
use config::ProtocolConfig;
@@ -92,6 +93,9 @@ impl<B: BlockT> Verifier<B> for PassThroughVerifier {
justification: Option<Justification>,
body: Option<Vec<B::Extrinsic>>
) -> Result<(ImportBlock<B>, Option<Vec<AuthorityIdFor<B>>>), String> {
let new_authorities = header.digest().log(DigestItem::as_authorities_change)
.map(|auth| auth.iter().cloned().collect());
Ok((ImportBlock {
origin,
header,
@@ -101,7 +105,7 @@ impl<B: BlockT> Verifier<B> for PassThroughVerifier {
post_digests: vec![],
auxiliary: Vec::new(),
fork_choice: ForkChoiceStrategy::LongestChain,
}, None))
}, new_authorities))
}
}
@@ -414,7 +418,7 @@ impl<V: 'static + Verifier<Block>, D> Peer<V, D> {
nonce,
};
let signature = Keyring::from_raw_public(transfer.from.to_fixed_bytes()).unwrap().sign(&transfer.encode()).into();
builder.push(Extrinsic { transfer, signature }).unwrap();
builder.push(Extrinsic::Transfer(transfer, signature)).unwrap();
nonce = nonce + 1;
builder.bake().unwrap()
});
@@ -423,6 +427,13 @@ impl<V: 'static + Verifier<Block>, D> Peer<V, D> {
}
}
pub fn push_authorities_change_block(&self, new_authorities: Vec<Ed25519AuthorityId>) {
self.generate_blocks(1, BlockOrigin::File, |mut builder| {
builder.push(Extrinsic::AuthoritiesChange(new_authorities.clone())).unwrap();
builder.bake().unwrap()
});
}
/// Execute a function with specialization for this peer.
pub fn with_spec<F, U>(&self, f: F) -> U
where F: FnOnce(&mut DummySpecialization, &mut Context<Block>) -> U