Update to latest Substrate master. (#353)

* Integrate srml/im-online

* Fix all build errors with old aura.

* Fix most of the build errors.

* Builds and tests seem to pass (I will not trust this commit yet)

* Apply suggestions from code review

Co-Authored-By: Robert Habermeier <rphmeier@gmail.com>

* Kill some warnings.

* fix panics on 0 validators

* Fix dev chain.

* Fix author stuff

* fix im online integration.

* Some tweaks

* Introduce app-crypto

* Initial build work

* codec update / tweaks

* patch polkadot-erasure-coding input

* More fixes for new crypto

* More fixes

* Update parachains module

* evamp parachain crypto

* More crypto work.

* Chain spec and service.

* ChainSpec stuff

* Last bits for a clean build

* Tweak coment

* adapt polkadot-validation to the new keystore

* polkadot-network compiles, but tests don't

* Integrate the new parachain validation stuff

* delete message_routing file

* make polkadot-network tests compile and pass

* runtime tests compile and pass

* update substrate ref

* service compiles

* all tests pass

* Add TODO, change branch back to polkadot-master

* Lock file

* TODOs done

* Issue number

* Remove old tODO

* Remove commented code

polkadot/availability-store/Cargo.toml

@@ -9,7 +9,7 @@ edition = "2018"
 polkadot-primitives = { path = "../primitives" }
 parking_lot = "0.9.0"
 log = "0.4.6"
-parity-codec = "4.1"
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 substrate-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 kvdb = { git = "https://github.com/paritytech/parity-common", rev="616b40150ded71f57f650067fcbc5c99d7c343e6" }
 kvdb-rocksdb = { git = "https://github.com/paritytech/parity-common", rev="616b40150ded71f57f650067fcbc5c99d7c343e6" }

polkadot/availability-store/src/lib.rs

@@ -16,7 +16,7 @@
 
 //! Persistent database for parachain data.
 
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 use kvdb::{KeyValueDB, DBTransaction};
 use kvdb_rocksdb::{Database, DatabaseConfig};
 use polkadot_primitives::Hash;

polkadot/cli/src/chain_spec.rs

@@ -26,15 +26,15 @@ pub enum ChainSpec {
 	Development,
 	/// Whatever the current runtime is, with simple Alice/Bob auths.
 	LocalTestnet,
-	/// The PoC-3 era testnet.
+	/// The Kusama network.
-	Alexander,
+	Kusama,
 	/// Whatever the current runtime is with the "global testnet" defaults.
 	StagingTestnet,
 }
 
 impl Default for ChainSpec {
 	fn default() -> Self {
-		ChainSpec::Alexander
+		ChainSpec::Kusama
 	}
 }
 
@@ -42,7 +42,7 @@ impl Default for ChainSpec {
 impl ChainSpec {
 	pub(crate) fn load(self) -> Result<service::ChainSpec, String> {
 		Ok(match self {
-			ChainSpec::Alexander => service::chain_spec::poc_3_testnet_config()?,
+			ChainSpec::Kusama => service::chain_spec::kusama_config()?,
 			ChainSpec::Development => service::chain_spec::development_config(),
 			ChainSpec::LocalTestnet => service::chain_spec::local_testnet_config(),
 			ChainSpec::StagingTestnet => service::chain_spec::staging_testnet_config(),
@@ -53,7 +53,7 @@ impl ChainSpec {
 		match s {
 			"dev" => Some(ChainSpec::Development),
 			"local" => Some(ChainSpec::LocalTestnet),
-			"poc-3" | "alex" | "alexander" => Some(ChainSpec::Alexander),
+			"kusama" => Some(ChainSpec::Kusama),
 			"staging" => Some(ChainSpec::StagingTestnet),
 			"" => Some(ChainSpec::default()),
 			_ => None,

polkadot/collator/Cargo.toml

@@ -9,11 +9,9 @@ edition = "2018"
 futures = "0.1.17"
 futures03 = { package = "futures-preview", version = "0.3.0-alpha.17", features = ["compat"] }
 client = { package = "substrate-client", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-parity-codec = "4.1"
 primitives = { package = "substrate-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 substrate-network = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 consensus_common = { package = "substrate-consensus-common", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-aura = { package = "substrate-consensus-aura", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 polkadot-runtime = { path = "../runtime", version = "0.1" }
 polkadot-primitives = { path = "../primitives", version = "0.1" }
 polkadot-cli = { path = "../cli" }

polkadot/collator/src/lib.rs

@@ -53,12 +53,12 @@ use futures::{future, Stream, Future, IntoFuture};
 use futures03::{TryStreamExt as _, StreamExt as _};
 use log::{info, warn};
 use client::BlockchainEvents;
-use primitives::{ed25519, Pair};
+use primitives::Pair;
 use polkadot_primitives::{
-	BlockId, SessionKey, Hash, Block,
+	BlockId, Hash, Block,
 	parachain::{
 		self, BlockData, DutyRoster, HeadData, ConsolidatedIngress, Message, Id as ParaId, Extrinsic,
-		PoVBlock, Status as ParachainStatus,
+		PoVBlock, Status as ParachainStatus, ValidatorId, CollatorPair,
 	}
 };
 use polkadot_cli::{
@@ -69,7 +69,6 @@ use polkadot_network::validation::{SessionParams, ValidationNetwork};
 use polkadot_network::NetworkService;
 use tokio::timer::Timeout;
 use consensus_common::SelectChain;
-use aura::AuraApi;
 
 pub use polkadot_cli::VersionInfo;
 pub use polkadot_network::validation::Incoming;
@@ -177,7 +176,7 @@ pub fn collate<'a, R, P>(
 	parachain_status: ParachainStatus,
 	relay_context: R,
 	para_context: P,
-	key: Arc<ed25519::Pair>,
+	key: Arc<CollatorPair>,
 )
 	-> impl Future<Item=parachain::Collation, Error=Error<R::Error>> + 'a
 	where
@@ -230,7 +229,7 @@ pub fn collate<'a, R, P>(
 struct ApiContext<P, E> {
 	network: Arc<ValidationNetwork<P, E, NetworkService, TaskExecutor>>,
 	parent_hash: Hash,
-	authorities: Vec<SessionKey>,
+	validators: Vec<ValidatorId>,
 }
 
 impl<P: 'static, E: 'static> RelayChainContext for ApiContext<P, E> where
@@ -248,7 +247,7 @@ impl<P: 'static, E: 'static> RelayChainContext for ApiContext<P, E> where
 		let _session = self.network.instantiate_session(SessionParams {
 			local_session_key: None,
 			parent_hash: self.parent_hash,
-			authorities: self.authorities.clone(),
+			authorities: self.validators.clone(),
 		}).map_err(|e| format!("unable to instantiate validation session: {:?}", e));
 
 		Box::new(future::ok(ConsolidatedIngress(Vec::new())))
@@ -259,7 +258,7 @@ struct CollationNode<P, E> {
 	build_parachain_context: P,
 	exit: E,
 	para_id: ParaId,
-	key: Arc<ed25519::Pair>,
+	key: Arc<CollatorPair>,
 }
 
 impl<P, E> IntoExit for CollationNode<P, E> where
@@ -364,18 +363,18 @@ impl<P, E> Worker for CollationNode<P, E> where
 						None => return future::Either::A(future::ok(())),
 					};
 
-					let authorities = try_fr!(api.authorities(&id));
+					let validators = try_fr!(api.validators(&id));
 
 					let targets = compute_targets(
 						para_id,
-						authorities.as_slice(),
+						validators.as_slice(),
 						try_fr!(api.duty_roster(&id)),
 					);
 
 					let context = ApiContext {
 						network: validation_network,
 						parent_hash: relay_parent,
-						authorities,
+						validators,
 					};
 
 					let collation_work = collate(
@@ -414,7 +413,7 @@ impl<P, E> Worker for CollationNode<P, E> where
 	}
 }
 
-fn compute_targets(para_id: ParaId, session_keys: &[SessionKey], roster: DutyRoster) -> HashSet<SessionKey> {
+fn compute_targets(para_id: ParaId, session_keys: &[ValidatorId], roster: DutyRoster) -> HashSet<ValidatorId> {
 	use polkadot_primitives::parachain::Chain;
 
 	roster.validator_duty.iter().enumerate()
@@ -433,7 +432,7 @@ pub fn run_collator<P, E>(
 	build_parachain_context: P,
 	para_id: ParaId,
 	exit: E,
-	key: Arc<ed25519::Pair>,
+	key: Arc<CollatorPair>,
 	version: VersionInfo,
 ) -> polkadot_cli::error::Result<()> where
 	P: BuildParachainContext + Send + 'static,
@@ -450,7 +449,7 @@ pub fn run_collator<P, E>(
 mod tests {
 	use std::collections::HashMap;
 	use polkadot_primitives::parachain::{OutgoingMessage, FeeSchedule};
-	use keyring::Ed25519Keyring;
+	use keyring::Sr25519Keyring;
 	use super::*;
 
 	#[derive(Default, Clone)]
@@ -540,7 +539,7 @@ mod tests {
 			},
 			context.clone(),
 			DummyParachainContext,
-			Ed25519Keyring::Alice.pair().into(),
+			Arc::new(Sr25519Keyring::Alice.pair().into()),
 		).wait().unwrap();
 
 		// ascending order by root.

polkadot/erasure-coding/Cargo.toml

@@ -7,6 +7,6 @@ edition = "2018"
 [dependencies]
 primitives = { package = "polkadot-primitives", path = "../primitives" }
 reed_solomon = { package = "reed-solomon-erasure", git = "https://github.com/paritytech/reed-solomon-erasure" }
-parity-codec = "4.1"
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 substrate-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 trie = { package = "substrate-trie", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }

polkadot/erasure-coding/src/lib.rs

@@ -24,12 +24,12 @@
 //! f is the maximum number of faulty validators in the system.
 //! The data is coded so any f+1 chunks can be used to reconstruct the full data.
 
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 use reed_solomon::galois_16::{self, ReedSolomon};
 use primitives::{Hash as H256, BlakeTwo256, HashT};
 use primitives::parachain::{BlockData, Extrinsic};
 use substrate_primitives::Blake2Hasher;
-use trie::{MemoryDB, Trie, TrieMut, TrieDB, TrieDBMut};
+use trie::{EMPTY_PREFIX, MemoryDB, Trie, TrieMut, trie_types::{TrieDBMut, TrieDB}};
 
 use self::wrapped_shard::WrappedShard;
 
@@ -187,13 +187,14 @@ pub fn reconstruct<'a, I: 'a>(n_validators: usize, chunks: I)
 
 	// lazily decode from the data shards.
 	Decode::decode(&mut ShardInput {
+		remaining_len: shard_len.map(|s| s * params.data_shards).unwrap_or(0),
 		cur_shard: None,
 		shards: shards.iter()
 			.map(|x| x.as_ref())
 			.take(params.data_shards)
 			.map(|x| x.expect("all data shards have been recovered; qed"))
 			.map(|x| x.as_ref()),
-	}).ok_or_else(|| Error::BadPayload)
+	}).or_else(|_| Err(Error::BadPayload))
 }
 
 /// An iterator that yields merkle branches and chunk data for all chunks to
@@ -269,7 +270,7 @@ pub fn branches<'a>(chunks: Vec<&'a [u8]>) -> Branches<'a> {
 pub fn branch_hash(root: &H256, branch_nodes: &[Vec<u8>], index: usize) -> Result<H256, Error> {
 	let mut trie_storage: MemoryDB<Blake2Hasher> = MemoryDB::default();
 	for node in branch_nodes.iter() {
-		(&mut trie_storage as &mut trie::HashDB<_>).insert(&[], node.as_slice());
+		(&mut trie_storage as &mut trie::HashDB<_>).insert(EMPTY_PREFIX, node.as_slice());
 	}
 
 	let trie = TrieDB::new(&trie_storage, &root).map_err(|_| Error::InvalidBranchProof)?;
@@ -278,21 +279,26 @@ pub fn branch_hash(root: &H256, branch_nodes: &[Vec<u8>], index: usize) -> Resul
 	);
 
 	match res {
-		Ok(Some(Some(hash))) => Ok(hash),
+		Ok(Some(Ok(hash))) => Ok(hash),
-		Ok(Some(None)) => Err(Error::InvalidBranchProof), // hash failed to decode
+		Ok(Some(Err(_))) => Err(Error::InvalidBranchProof), // hash failed to decode
 		Ok(None) => Err(Error::BranchOutOfBounds),
 		Err(_) => Err(Error::InvalidBranchProof),
 	}
 }
 
-// input for `parity_codec` which draws data from the data shards
+// input for `codec` which draws data from the data shards
 struct ShardInput<'a, I> {
+	remaining_len: usize,
 	shards: I,
 	cur_shard: Option<(&'a [u8], usize)>,
 }
 
-impl<'a, I: Iterator<Item=&'a [u8]>> parity_codec::Input for ShardInput<'a, I> {
+impl<'a, I: Iterator<Item=&'a [u8]>> codec::Input for ShardInput<'a, I> {
-	fn read(&mut self, into: &mut [u8]) -> usize {
+	fn remaining_len(&mut self) -> Result<Option<usize>, codec::Error> {
+		Ok(Some(self.remaining_len))
+	}
+
+	fn read(&mut self, into: &mut [u8]) -> Result<(), codec::Error> {
 		let mut read_bytes = 0;
 
 		loop {
@@ -320,7 +326,12 @@ impl<'a, I: Iterator<Item=&'a [u8]>> parity_codec::Input for ShardInput<'a, I> {
 			self.cur_shard = Some((active_shard, in_shard))
 		}
 
-		read_bytes
+		self.remaining_len -= read_bytes;
+		if read_bytes == into.len() {
+			Ok(())
+		} else {
+			Err("slice provided too big for input".into())
+		}
 	}
 }
 

polkadot/network/Cargo.toml

@@ -11,7 +11,7 @@ parking_lot = "0.9.0"
 av_store = { package = "polkadot-availability-store", path = "../availability-store" }
 polkadot-validation = { path = "../validation" }
 polkadot-primitives = { path = "../primitives" }
-parity-codec = { version = "4.1", features = ["derive"] }
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 substrate-network = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 substrate-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 sr-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }

polkadot/network/src/collator_pool.rs

@@ -16,7 +16,7 @@
 
 //! Bridge between the network and consensus service for getting collations to it.
 
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 use polkadot_primitives::Hash;
 use polkadot_primitives::parachain::{CollatorId, Id as ParaId, Collation};
 use substrate_network::PeerId;

polkadot/network/src/gossip.rs

@@ -22,8 +22,8 @@ use substrate_network::consensus_gossip::{
 	ValidatorContext, MessageIntent, ConsensusMessage,
 };
 use polkadot_validation::{GenericStatement, SignedStatement};
-use polkadot_primitives::{Block, Hash, SessionKey, parachain::ValidatorIndex};
+use polkadot_primitives::{Block, Hash, parachain::{ValidatorIndex, ValidatorId}};
-use parity_codec::{Decode, Encode};
+use codec::{Decode, Encode};
 
 use std::collections::{HashMap, HashSet};
 use std::sync::Arc;
@@ -218,9 +218,9 @@ impl RegisteredMessageValidator {
 #[derive(Default)]
 pub(crate) struct MessageValidationData {
 	/// The authorities at a block.
-	pub(crate) authorities: Vec<SessionKey>,
+	pub(crate) authorities: Vec<ValidatorId>,
-	/// Mapping from validator index to `SessionKey`.
+	/// Mapping from validator index to `ValidatorId`.
-	pub(crate) index_mapping: HashMap<ValidatorIndex, SessionKey>,
+	pub(crate) index_mapping: HashMap<ValidatorIndex, ValidatorId>,
 }
 
 impl MessageValidationData {
@@ -481,15 +481,15 @@ impl<O: KnownOracle + ?Sized> network_gossip::Validator<Block> for MessageValida
 		-> GossipValidationResult<Hash>
 	{
 		let (res, cost_benefit) = match GossipMessage::decode(&mut data) {
-			None => (GossipValidationResult::Discard, cost::MALFORMED_MESSAGE),
+			Err(_) => (GossipValidationResult::Discard, cost::MALFORMED_MESSAGE),
-			Some(GossipMessage::Neighbor(VersionedNeighborPacket::V1(packet))) => {
+			Ok(GossipMessage::Neighbor(VersionedNeighborPacket::V1(packet))) => {
 				let (res, cb, topics) = self.inner.write().validate_neighbor_packet(sender, packet);
 				for new_topic in topics {
 					context.send_topic(sender, new_topic, false);
 				}
 				(res, cb)
 			}
-			Some(GossipMessage::Statement(statement)) => {
+			Ok(GossipMessage::Statement(statement)) => {
 				let (res, cb) = self.inner.write().validate_statement(statement);
 				if let GossipValidationResult::ProcessAndKeep(ref topic) = res {
 					context.broadcast_message(topic.clone(), data.to_vec(), false);
@@ -535,7 +535,7 @@ impl<O: KnownOracle + ?Sized> network_gossip::Validator<Block> for MessageValida
 			};
 
 			match GossipMessage::decode(&mut &data[..]) {
-				Some(GossipMessage::Statement(statement)) => {
+				Ok(GossipMessage::Statement(statement)) => {
 					let signed = statement.signed_statement;
 
 					match signed.statement {
@@ -573,7 +573,7 @@ mod tests {
 	use parking_lot::Mutex;
 	use polkadot_primitives::parachain::{CandidateReceipt, HeadData};
 	use substrate_primitives::crypto::UncheckedInto;
-	use substrate_primitives::ed25519::Signature as Ed25519Signature;
+	use substrate_primitives::sr25519::Signature as Sr25519Signature;
 
 	#[derive(PartialEq, Clone, Debug)]
 	enum ContextEvent {
@@ -669,7 +669,7 @@ mod tests {
 			relay_parent: hash_a,
 			signed_statement: SignedStatement {
 				statement: GenericStatement::Candidate(candidate_receipt),
-				signature: Ed25519Signature([255u8; 64]),
+				signature: Sr25519Signature([255u8; 64]).into(),
 				sender: 1,
 			}
 		});
@@ -786,7 +786,7 @@ mod tests {
 			relay_parent: hash_a,
 			signed_statement: SignedStatement {
 				statement: GenericStatement::Valid(c_hash),
-				signature: Ed25519Signature([255u8; 64]),
+				signature: Sr25519Signature([255u8; 64]).into(),
 				sender: 1,
 			}
 		});

polkadot/network/src/gossip/message_routing.rs

@@ -1,265 +0,0 @@
-// Copyright 2019 Parity Technologies (UK) Ltd.
-// This file is part of Polkadot.
-
-// Polkadot is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Polkadot is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
-
-//! Data structures and synchronous logic for ICMP message gossip.
-
-use sr_primitives::traits::{BlakeTwo256, Hash as HashT};
-use polkadot_primitives::Hash;
-use std::collections::{HashMap, HashSet};
-use substrate_client::error::Error as ClientError;
-use super::{MAX_CHAIN_HEADS, GossipValidationResult, LeavesVec, ChainContext};
-
-/// Construct a topic for a message queue root deterministically.
-pub fn queue_topic(queue_root: Hash) -> Hash {
-	let mut v = queue_root.as_ref().to_vec();
-	v.extend(b"message_queue");
-
-	BlakeTwo256::hash(&v[..])
-}
-
-/// A view of which queue roots are current for a given set of leaves.
-#[derive(Default)]
-pub struct View {
-	leaves: LeavesVec,
-	leaf_topics: HashMap<Hash, HashSet<Hash>>, // leaf_hash -> { topics }
-	expected_queues: HashMap<Hash, Hash>, // topic -> queue-root
-}
-
-impl View {
-	/// Update the set of current leaves.
-	pub fn update_leaves<T: ChainContext + ?Sized, I>(&mut self, context: &T, new_leaves: I)
-		-> Result<(), ClientError>
-		where I: Iterator<Item=Hash>
-	{
-		let new_leaves = new_leaves.take(MAX_CHAIN_HEADS);
-		let old_leaves = {
-			let mut new = LeavesVec::new();
-			for leaf in new_leaves {
-				new.push(leaf.clone());
-			}
-
-			std::mem::replace(&mut self.leaves, new)
-		};
-
-		let expected_queues = &mut self.expected_queues;
-		let leaves = &self.leaves;
-		self.leaf_topics.retain(|l, topics| {
-			if leaves.contains(l) { return true }
-
-			// prune out all data about old leaves we don't follow anymore.
-			for topic in topics.iter() {
-				expected_queues.remove(topic);
-			}
-			false
-		});
-
-		let mut res = Ok(());
-
-		// add in new data about fresh leaves.
-		for new_leaf in &self.leaves {
-			if old_leaves.contains(new_leaf) { continue }
-
-			let mut this_leaf_topics = HashSet::new();
-
-			let r = context.leaf_unrouted_roots(new_leaf, &mut |&queue_root| {
-				let topic = queue_topic(queue_root);
-				this_leaf_topics.insert(topic);
-				expected_queues.insert(topic, queue_root);
-			});
-
-			if r.is_err() {
-				res = r;
-			}
-
-			self.leaf_topics.insert(*new_leaf, this_leaf_topics);
-		}
-
-		res
-	}
-
-	/// Validate an incoming message queue against this view.
-	pub fn validate_queue(&self, messages: &super::GossipParachainMessages)
-		-> (GossipValidationResult<Hash>, i32)
-	{
-		let ostensible_topic = queue_topic(messages.queue_root);
-		if !self.is_topic_live(&ostensible_topic) {
-			(GossipValidationResult::Discard, super::cost::UNNEEDED_ICMP_MESSAGES)
-		} else if !messages.queue_root_is_correct() {
-			(
-				GossipValidationResult::Discard,
-				super::cost::icmp_messages_root_mismatch(messages.messages.len()),
-			)
-		} else {
-			(
-				GossipValidationResult::ProcessAndKeep(ostensible_topic),
-				super::benefit::NEW_ICMP_MESSAGES,
-			)
-		}
-	}
-
-	/// Whether a message with given topic is live.
-	pub fn is_topic_live(&self, topic: &Hash) -> bool {
-		self.expected_queues.get(topic).is_some()
-	}
-
-	/// Whether a message is allowed under the intersection of the given leaf-set
-	/// and our own.
-	pub fn allowed_intersecting(&self, other_leaves: &LeavesVec, topic: &Hash) -> bool {
-		for i in other_leaves {
-			for j in &self.leaves {
-				if i == j {
-					let leaf_topics = self.leaf_topics.get(i)
-						.expect("leaf_topics are mutated only in update_leaves; \
-							we have an entry for each item in self.leaves; \
-							i is in self.leaves; qed");
-
-					if leaf_topics.contains(topic) {
-						return true;
-					}
-				}
-			}
-		}
-
-		false
-	}
-}
-
-#[cfg(test)]
-mod tests {
-	use super::*;
-	use crate::tests::TestChainContext;
-	use crate::gossip::{Known, GossipParachainMessages};
-	use polkadot_primitives::parachain::Message as ParachainMessage;
-
-	fn hash(x: u8) -> Hash {
-		[x; 32].into()
-	}
-
-	fn message_queue(from: u8, to: u8) -> Option<[[u8; 2]; 1]> {
-		if from == to {
-			None
-		} else {
-			Some([[from, to]])
-		}
-	}
-
-	fn message_queue_root(from: u8, to: u8) -> Option<Hash> {
-		message_queue(from, to).map(
-			|q| polkadot_validation::message_queue_root(q.iter())
-		)
-	}
-
-	fn check_roots(view: &View, i: u8, max: u8) -> bool {
-		for j in 0..max {
-			if let Some(messages) = message_queue(i, j) {
-				let queue_root = message_queue_root(i, j).unwrap();
-				let messages = GossipParachainMessages {
-					queue_root,
-					messages: messages.iter().map(|m| ParachainMessage(m.to_vec())).collect(),
-				};
-
-				match view.validate_queue(&messages).0 {
-					GossipValidationResult::ProcessAndKeep(topic) => if topic != queue_topic(queue_root) {
-						return false
-					},
-					_ => return false,
-				}
-			}
-		}
-
-		true
-	}
-
-	#[test]
-	fn update_leaves_none_in_common() {
-		let mut ctx = TestChainContext::default();
-		let max = 5;
-
-		for i in 0..max {
-			ctx.known_map.insert(hash(i as u8), Known::Leaf);
-
-			let messages_out: Vec<_> = (0..max).filter_map(|j| message_queue_root(i, j)).collect();
-
-			if !messages_out.is_empty() {
-				ctx.ingress_roots.insert(hash(i as u8), messages_out);
-			}
-		}
-
-		let mut view = View::default();
-		view.update_leaves(
-			&ctx,
-			[hash(0), hash(1)].iter().cloned(),
-		).unwrap();
-
-		assert!(check_roots(&view, 0, max));
-		assert!(check_roots(&view, 1, max));
-
-		assert!(!check_roots(&view, 2, max));
-		assert!(!check_roots(&view, 3, max));
-		assert!(!check_roots(&view, 4, max));
-		assert!(!check_roots(&view, 5, max));
-
-		view.update_leaves(
-			&ctx,
-			[hash(2), hash(3), hash(4)].iter().cloned(),
-		).unwrap();
-
-		assert!(!check_roots(&view, 0, max));
-		assert!(!check_roots(&view, 1, max));
-
-		assert!(check_roots(&view, 2, max));
-		assert!(check_roots(&view, 3, max));
-		assert!(check_roots(&view, 4, max));
-
-		assert!(!check_roots(&view, 5, max));
-	}
-
-	#[test]
-	fn update_leaves_overlapping() {
-		let mut ctx = TestChainContext::default();
-		let max = 5;
-
-		for i in 0..max {
-			ctx.known_map.insert(hash(i as u8), Known::Leaf);
-
-			let messages_out: Vec<_> = (0..max).filter_map(|j| message_queue_root(i, j)).collect();
-
-			if !messages_out.is_empty() {
-				ctx.ingress_roots.insert(hash(i as u8), messages_out);
-			}
-		}
-
-		let mut view = View::default();
-		view.update_leaves(
-			&ctx,
-			[hash(0), hash(1), hash(2)].iter().cloned(),
-		).unwrap();
-
-		view.update_leaves(
-			&ctx,
-			[hash(2), hash(3), hash(4)].iter().cloned(),
-		).unwrap();
-
-		assert!(!check_roots(&view, 0, max));
-		assert!(!check_roots(&view, 1, max));
-
-		assert!(check_roots(&view, 2, max));
-		assert!(check_roots(&view, 3, max));
-		assert!(check_roots(&view, 4, max));
-
-		assert!(!check_roots(&view, 5, max));
-	}
-}

polkadot/network/src/lib.rs

@@ -25,12 +25,12 @@ mod router;
 pub mod validation;
 pub mod gossip;
 
-use parity_codec::{Decode, Encode};
+use codec::{Decode, Encode};
 use futures::sync::oneshot;
-use polkadot_primitives::{Block, SessionKey, Hash, Header};
+use polkadot_primitives::{Block, Hash, Header};
 use polkadot_primitives::parachain::{
 	Id as ParaId, BlockData, CollatorId, CandidateReceipt, Collation, PoVBlock,
-	StructuredUnroutedIngress,
+	StructuredUnroutedIngress, ValidatorId
 };
 use substrate_network::{
 	PeerId, RequestId, Context, StatusMessage as GenericFullStatus,
@@ -78,7 +78,7 @@ pub struct Status {
 }
 
 struct PoVBlockRequest {
-	attempted_peers: HashSet<SessionKey>,
+	attempted_peers: HashSet<ValidatorId>,
 	validation_session_parent: Hash,
 	candidate_hash: Hash,
 	block_data_hash: Hash,
@@ -115,8 +115,8 @@ enum CollatorState {
 }
 
 impl CollatorState {
-	fn send_key<F: FnMut(Message)>(&mut self, key: SessionKey, mut f: F) {
+	fn send_key<F: FnMut(Message)>(&mut self, key: ValidatorId, mut f: F) {
-		f(Message::SessionKey(key));
+		f(Message::ValidatorId(key));
 		if let CollatorState::RolePending(role) = *self {
 			f(Message::CollatorRole(role));
 			*self = CollatorState::Primed(Some(role));
@@ -160,7 +160,7 @@ pub enum Message {
 	/// As a validator, tell the peer your current session key.
 	// TODO: do this with a cryptographic proof of some kind
 	// https://github.com/paritytech/polkadot/issues/47
-	SessionKey(SessionKey),
+	ValidatorId(ValidatorId),
 	/// Requesting parachain proof-of-validation block (relay_parent, candidate_hash).
 	RequestPovBlock(RequestId, Hash, Hash),
 	/// Provide requested proof-of-validation block data by candidate hash or nothing if unknown.
@@ -186,7 +186,7 @@ pub struct PolkadotProtocol {
 	peers: HashMap<PeerId, PeerInfo>,
 	collating_for: Option<(CollatorId, ParaId)>,
 	collators: CollatorPool,
-	validators: HashMap<SessionKey, PeerId>,
+	validators: HashMap<ValidatorId, PeerId>,
 	local_collations: LocalCollations<Collation>,
 	live_validation_sessions: LiveValidationSessions,
 	in_flight: HashMap<(RequestId, PeerId), PoVBlockRequest>,
@@ -319,7 +319,7 @@ impl PolkadotProtocol {
 	fn on_polkadot_message(&mut self, ctx: &mut dyn Context<Block>, who: PeerId, msg: Message) {
 		trace!(target: "p_net", "Polkadot message from {}: {:?}", who, msg);
 		match msg {
-			Message::SessionKey(key) => self.on_session_key(ctx, who, key),
+			Message::ValidatorId(key) => self.on_session_key(ctx, who, key),
 			Message::RequestPovBlock(req_id, relay_parent, candidate_hash) => {
 				let pov_block = self.live_validation_sessions.with_pov_block(
 					&relay_parent,
@@ -352,7 +352,7 @@ impl PolkadotProtocol {
 		}
 	}
 
-	fn on_session_key(&mut self, ctx: &mut dyn Context<Block>, who: PeerId, key: SessionKey) {
+	fn on_session_key(&mut self, ctx: &mut dyn Context<Block>, who: PeerId, key: ValidatorId) {
 		{
 			let info = match self.peers.get_mut(&who) {
 				Some(peer) => peer,
@@ -473,12 +473,8 @@ impl Specialization<Block> for PolkadotProtocol {
 	}
 
 	fn on_connect(&mut self, ctx: &mut dyn Context<Block>, who: PeerId, status: FullStatus) {
-		let local_status = match Status::decode(&mut &status.chain_status[..]) {
+		let local_status = Status::decode(&mut &status.chain_status[..])
-			Some(status) => status,
+			.unwrap_or_else(|_| Status { collating_for: None });
-			None => {
-				Status { collating_for: None }
-			}
-		};
 
 		let validator = status.roles.contains(substrate_network::config::Roles::AUTHORITY);
 
@@ -575,11 +571,11 @@ impl Specialization<Block> for PolkadotProtocol {
 		message: Vec<u8>,
 	) {
 		match Message::decode(&mut &message[..]) {
-			Some(msg) => {
+			Ok(msg) => {
 				ctx.report_peer(who.clone(), benefit::VALID_FORMAT);
 				self.on_polkadot_message(ctx, who, msg)
 			},
-			None => {
+			Err(_) => {
 				trace!(target: "p_net", "Bad message from {}", who);
 				ctx.report_peer(who, cost::INVALID_FORMAT);
 			}
@@ -684,7 +680,7 @@ impl PolkadotProtocol {
 		&mut self,
 		ctx: &mut dyn Context<Block>,
 		relay_parent: Hash,
-		targets: HashSet<SessionKey>,
+		targets: HashSet<ValidatorId>,
 		collation: Collation,
 	) {
 		debug!(target: "p_net", "Importing local collation on relay parent {:?} and parachain {:?}",

polkadot/network/src/local_collations.rs

@@ -19,24 +19,22 @@
 //! Collations are attempted to be repropagated when a new validator connects,
 //! a validator changes his session key, or when they are generated.
 
-use polkadot_primitives::{Hash, SessionKey};
+use polkadot_primitives::{Hash, parachain::{ValidatorId}};
-
 use crate::collator_pool::Role;
-
 use std::collections::{HashMap, HashSet};
 use std::time::{Duration, Instant};
 
 const LIVE_FOR: Duration = Duration::from_secs(60 * 5);
 
 struct LocalCollation<C> {
-	targets: HashSet<SessionKey>,
+	targets: HashSet<ValidatorId>,
 	collation: C,
 	live_since: Instant,
 }
 
 /// Tracker for locally collated values and which validators to send them to.
 pub struct LocalCollations<C> {
-	primary_for: HashSet<SessionKey>,
+	primary_for: HashSet<ValidatorId>,
 	local_collations: HashMap<Hash, LocalCollation<C>>,
 }
 
@@ -51,7 +49,7 @@ impl<C: Clone> LocalCollations<C> {
 
 	/// Validator gave us a new role. If the new role is "primary", this function might return
 	/// a set of collations to send to that validator.
-	pub fn note_validator_role(&mut self, key: SessionKey, role: Role) -> Vec<(Hash, C)> {
+	pub fn note_validator_role(&mut self, key: ValidatorId, role: Role) -> Vec<(Hash, C)> {
 		match role {
 			Role::Backup => {
 				self.primary_for.remove(&key);
@@ -70,7 +68,7 @@ impl<C: Clone> LocalCollations<C> {
 
 	/// Fresh session key from a validator. Returns a vector of collations to send
 	/// to the validator.
-	pub fn fresh_key(&mut self, old_key: &SessionKey, new_key: &SessionKey) -> Vec<(Hash, C)> {
+	pub fn fresh_key(&mut self, old_key: &ValidatorId, new_key: &ValidatorId) -> Vec<(Hash, C)> {
 		if self.primary_for.remove(old_key) {
 			self.primary_for.insert(new_key.clone());
 
@@ -81,7 +79,7 @@ impl<C: Clone> LocalCollations<C> {
 	}
 
 	/// Validator disconnected.
-	pub fn on_disconnect(&mut self, key: &SessionKey) {
+	pub fn on_disconnect(&mut self, key: &ValidatorId) {
 		self.primary_for.remove(key);
 	}
 
@@ -99,10 +97,10 @@ impl<C: Clone> LocalCollations<C> {
 	pub fn add_collation<'a>(
 		&'a mut self,
 		relay_parent: Hash,
-		targets: HashSet<SessionKey>,
+		targets: HashSet<ValidatorId>,
 		collation: C
 	)
-		-> impl Iterator<Item=(SessionKey, C)> + 'a
+		-> impl Iterator<Item=(ValidatorId, C)> + 'a
 	{
 		self.local_collations.insert(relay_parent, LocalCollation {
 			targets,
@@ -119,7 +117,7 @@ impl<C: Clone> LocalCollations<C> {
 			.map(move |k| (k.clone(), borrowed_collation.clone()))
 	}
 
-	fn collations_targeting(&self, key: &SessionKey) -> Vec<(Hash, C)> {
+	fn collations_targeting(&self, key: &ValidatorId) -> Vec<(Hash, C)> {
 		self.local_collations.iter()
 			.filter(|&(_, ref v)| v.targets.contains(key))
 			.map(|(h, v)| (*h, v.collation.clone()))

polkadot/network/src/router.rs

@@ -199,13 +199,16 @@ impl<P: ProvideRuntimeApi + Send + Sync + 'static, E, N, T> Router<P, E, N, T> w
 					validated.extrinsic().cloned(),
 				);
 
-
 				// propagate the statement.
 				// consider something more targeted than gossip in the future.
 				let statement = GossipStatement::new(
 					parent_hash,
-					table.import_validated(validated),
+					match table.import_validated(validated) {
+						None => return,
+						Some(s) => s,
+					}
 				);
+
 				network.gossip_message(attestation_topic, statement.into());
 			})
 			.map_err(|e| debug!(target: "p_net", "Failed to produce statements: {:?}", e))
@@ -224,10 +227,18 @@ impl<P: ProvideRuntimeApi + Send, E, N, T> TableRouter for Router<P, E, N, T> wh
 	fn local_collation(&self, collation: Collation, extrinsic: Extrinsic) {
 		// produce a signed statement
 		let hash = collation.receipt.hash();
-		let validated = Validated::collated_local(collation.receipt, collation.pov.clone(), extrinsic.clone());
+		let validated = Validated::collated_local(
+			collation.receipt,
+			collation.pov.clone(),
+			extrinsic.clone(),
+		);
+
 		let statement = GossipStatement::new(
 			self.parent_hash(),
-			self.table.import_validated(validated),
+			match self.table.import_validated(validated) {
+				None => return,
+				Some(s) => s,
+			},
 		);
 
 		// give to network to make available.

polkadot/network/src/tests/mod.rs

@@ -21,13 +21,13 @@ use super::{PolkadotProtocol, Status, Message, FullStatus};
 use crate::validation::SessionParams;
 
 use polkadot_validation::GenericStatement;
-use polkadot_primitives::{Block, Hash, SessionKey};
+use polkadot_primitives::{Block, Hash};
 use polkadot_primitives::parachain::{
 	CandidateReceipt, HeadData, PoVBlock, BlockData, CollatorId, ValidatorId,
-	StructuredUnroutedIngress,
+	StructuredUnroutedIngress
 };
 use substrate_primitives::crypto::UncheckedInto;
-use parity_codec::Encode;
+use codec::Encode;
 use substrate_network::{
 	PeerId, Context, config::Roles, message::generic::ConsensusMessage,
 	specialization::NetworkSpecialization,
@@ -96,7 +96,7 @@ fn make_status(status: &Status, roles: Roles) -> FullStatus {
 	}
 }
 
-fn make_validation_session(parent_hash: Hash, local_key: SessionKey) -> SessionParams {
+fn make_validation_session(parent_hash: Hash, local_key: ValidatorId) -> SessionParams {
 	SessionParams {
 		local_session_key: Some(local_key),
 		parent_hash,
@@ -131,13 +131,13 @@ fn sends_session_key() {
 		let mut ctx = TestContext::default();
 		let params = make_validation_session(parent_hash, local_key.clone());
 		protocol.new_validation_session(&mut ctx, params);
-		assert!(ctx.has_message(peer_a, Message::SessionKey(local_key.clone())));
+		assert!(ctx.has_message(peer_a, Message::ValidatorId(local_key.clone())));
 	}
 
 	{
 		let mut ctx = TestContext::default();
 		protocol.on_connect(&mut ctx, peer_b.clone(), make_status(&collator_status, Roles::NONE));
-		assert!(ctx.has_message(peer_b.clone(), Message::SessionKey(local_key)));
+		assert!(ctx.has_message(peer_b.clone(), Message::ValidatorId(local_key)));
 	}
 }
 
@@ -186,13 +186,13 @@ fn fetches_from_those_with_knowledge() {
 	{
 		let mut ctx = TestContext::default();
 		protocol.on_connect(&mut ctx, peer_a.clone(), make_status(&status, Roles::AUTHORITY));
-		assert!(ctx.has_message(peer_a.clone(), Message::SessionKey(local_key)));
+		assert!(ctx.has_message(peer_a.clone(), Message::ValidatorId(local_key)));
 	}
 
 	// peer A gives session key and gets asked for data.
 	{
 		let mut ctx = TestContext::default();
-		on_message(&mut protocol, &mut ctx, peer_a.clone(), Message::SessionKey(a_key.clone()));
+		on_message(&mut protocol, &mut ctx, peer_a.clone(), Message::ValidatorId(a_key.clone()));
 		assert!(protocol.validators.contains_key(&a_key));
 		assert!(ctx.has_message(peer_a.clone(), Message::RequestPovBlock(1, parent_hash, candidate_hash)));
 	}
@@ -203,7 +203,7 @@ fn fetches_from_those_with_knowledge() {
 	{
 		let mut ctx = TestContext::default();
 		protocol.on_connect(&mut ctx, peer_b.clone(), make_status(&status, Roles::AUTHORITY));
-		on_message(&mut protocol, &mut ctx, peer_b.clone(), Message::SessionKey(b_key.clone()));
+		on_message(&mut protocol, &mut ctx, peer_b.clone(), Message::ValidatorId(b_key.clone()));
 		assert!(!ctx.has_message(peer_b.clone(), Message::RequestPovBlock(2, parent_hash, candidate_hash)));
 
 	}
@@ -340,8 +340,8 @@ fn many_session_keys() {
 		let status = Status { collating_for: None };
 		protocol.on_connect(&mut ctx, peer_a.clone(), make_status(&status, Roles::AUTHORITY));
 
-		assert!(ctx.has_message(peer_a.clone(), Message::SessionKey(local_key_a.clone())));
+		assert!(ctx.has_message(peer_a.clone(), Message::ValidatorId(local_key_a.clone())));
-		assert!(ctx.has_message(peer_a, Message::SessionKey(local_key_b.clone())));
+		assert!(ctx.has_message(peer_a, Message::ValidatorId(local_key_b.clone())));
 	}
 
 	let peer_b = PeerId::random();
@@ -354,7 +354,7 @@ fn many_session_keys() {
 		let status = Status { collating_for: None };
 		protocol.on_connect(&mut ctx, peer_b.clone(), make_status(&status, Roles::AUTHORITY));
 
-		assert!(!ctx.has_message(peer_b.clone(), Message::SessionKey(local_key_a.clone())));
+		assert!(!ctx.has_message(peer_b.clone(), Message::ValidatorId(local_key_a.clone())));
-		assert!(ctx.has_message(peer_b, Message::SessionKey(local_key_b.clone())));
+		assert!(ctx.has_message(peer_b, Message::ValidatorId(local_key_b.clone())));
 	}
 }

polkadot/network/src/tests/validation.rs

@@ -23,11 +23,11 @@ use crate::gossip::GossipMessage;
 use substrate_network::Context as NetContext;
 use substrate_network::consensus_gossip::TopicNotification;
 use substrate_primitives::{NativeOrEncoded, ExecutionContext};
-use substrate_keyring::Ed25519Keyring;
+use substrate_keyring::Sr25519Keyring;
 use crate::PolkadotProtocol;
 
 use polkadot_validation::{SharedTable, MessagesFrom, Network};
-use polkadot_primitives::{SessionKey, Block, Hash, Header, BlockId};
+use polkadot_primitives::{Block, Hash, Header, BlockId};
 use polkadot_primitives::parachain::{
 	Id as ParaId, Chain, DutyRoster, ParachainHost, OutgoingMessage,
 	ValidatorId, StructuredUnroutedIngress, BlockIngressRoots, Status,
@@ -41,7 +41,7 @@ use sr_primitives::traits::{ApiRef, ProvideRuntimeApi};
 use std::collections::HashMap;
 use std::sync::Arc;
 use futures::{prelude::*, sync::mpsc};
-use parity_codec::Encode;
+use codec::Encode;
 
 use super::TestContext;
 
@@ -398,20 +398,23 @@ impl IngressBuilder {
 	}
 }
 
-fn make_table(data: &ApiData, local_key: &Ed25519Keyring, parent_hash: Hash) -> Arc<SharedTable> {
+fn make_table(data: &ApiData, local_key: &Sr25519Keyring, parent_hash: Hash) -> Arc<SharedTable> {
 	use av_store::Store;
+	use substrate_primitives::crypto::Pair;
 
+	let sr_pair = local_key.pair();
+	let local_key = polkadot_primitives::parachain::ValidatorPair::from(local_key.pair());
 	let store = Store::new_in_memory();
 	let (group_info, _) = ::polkadot_validation::make_group_info(
 		DutyRoster { validator_duty: data.duties.clone() },
 		&data.validators, // only possible as long as parachain crypto === aura crypto
-		SessionKey::from(*local_key)
+		Some(sr_pair.public().into()),
 	).unwrap();
 
 	Arc::new(SharedTable::new(
-		data.validators.as_slice(),
+		data.validators.clone(),
 		group_info,
-		Arc::new(local_key.pair()),
+		Some(Arc::new(local_key)),
 		parent_hash,
 		store,
 		None,

polkadot/network/src/validation.rs

@@ -28,10 +28,10 @@ use substrate_network::consensus_gossip::{
 use polkadot_validation::{
 	Network as ParachainNetwork, SharedTable, Collators, Statement, GenericStatement, SignedStatement,
 };
-use polkadot_primitives::{Block, BlockId, Hash, SessionKey};
+use polkadot_primitives::{Block, BlockId, Hash};
 use polkadot_primitives::parachain::{
 	Id as ParaId, Collation, Extrinsic, ParachainHost, CandidateReceipt, CollatorId,
-	ValidatorId, PoVBlock, ValidatorIndex,
+	ValidatorId, PoVBlock, ValidatorIndex
 };
 
 use futures::prelude::*;
@@ -54,7 +54,7 @@ use super::PolkadotProtocol;
 
 pub use polkadot_validation::Incoming;
 
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 
 /// An executor suitable for dispatching async consensus tasks.
 pub trait Executor {
@@ -120,7 +120,7 @@ impl Stream for GossipMessageStream {
 			};
 
 			debug!(target: "validation", "Processing statement for live validation session");
-			if let Some(gmsg) = GossipMessage::decode(&mut &msg.message[..]) {
+			if let Ok(gmsg) = GossipMessage::decode(&mut &msg.message[..]) {
 				return Ok(Async::Ready(Some((gmsg, msg.sender))))
 			}
 		}
@@ -186,11 +186,11 @@ impl NetworkService for super::NetworkService {
 /// Params to a current validation session.
 pub struct SessionParams {
 	/// The local session key.
-	pub local_session_key: Option<SessionKey>,
+	pub local_session_key: Option<ValidatorId>,
 	/// The parent hash.
 	pub parent_hash: Hash,
 	/// The authorities.
-	pub authorities: Vec<SessionKey>,
+	pub authorities: Vec<ValidatorId>,
 }
 
 /// Wrapper around the network service
@@ -336,7 +336,7 @@ impl<P, E, N, T> ParachainNetwork for ValidationNetwork<P, E, N, T> where
 		let local_session_key = table.session_key();
 
 		let build_fetcher = self.instantiate_session(SessionParams {
-			local_session_key: Some(local_session_key),
+			local_session_key,
 			parent_hash,
 			authorities: authorities.to_vec(),
 		});

polkadot/parachain/Cargo.toml

@@ -6,11 +6,10 @@ description = "Types and utilities for creating and working with parachains"
 edition = "2018"
 
 [dependencies]
-codec = { package = "parity-codec", version = "4.1", default-features = false, features = [ "derive" ] }
+codec = { package = "parity-scale-codec", version = "1.0.5", default-features = false, features = [ "derive" ] }
 wasmi = { version = "0.4.3", optional = true }
 derive_more = { version = "0.14", optional = true }
 serde = { version = "1.0", default-features = false, features = [ "derive" ] }
-
 rstd = { package = "sr-std", git = "https://github.com/paritytech/substrate", branch = "polkadot-master", default-features = false }
 lazy_static = { version = "1.3.0", optional = true }
 parking_lot = { version = "0.7.1", optional = true }
@@ -27,4 +26,14 @@ halt = { path = "../test-parachains/halt" }
 [features]
 default = ["std"]
 wasm-api = []
-std = [ "codec/std", "wasmi", "derive_more", "serde/std", "rstd/std", "shared_memory", "lazy_static", "parking_lot", "log" ]
+std = [
+	"codec/std",
+	"wasmi",
+	"derive_more",
+	"serde/std",
+	"rstd/std",
+	"shared_memory",
+	"lazy_static",
+	"parking_lot",
+	"log"
+]

polkadot/parachain/src/lib.rs

@@ -51,22 +51,9 @@ pub mod wasm_executor;
 #[cfg(feature = "wasm-api")]
 pub mod wasm_api;
 
-use codec::{Encode, Decode};
-
 use rstd::vec::Vec;
 
-struct TrailingZeroInput<'a>(&'a [u8]);
+use codec::{Encode, Decode};
-impl<'a> codec::Input for TrailingZeroInput<'a> {
-	fn read(&mut self, into: &mut [u8]) -> usize {
-		let len = into.len().min(self.0.len());
-		into[..len].copy_from_slice(&self.0[..len]);
-		for i in &mut into[len..] {
-			*i = 0;
-		}
-		self.0 = &self.0[len..];
-		len
-	}
-}
 
 /// Validation parameters for evaluating the parachain validity function.
 // TODO: balance downloads (https://github.com/paritytech/polkadot/issues/220)
@@ -110,37 +97,6 @@ impl From<codec::Compact<Id>> for Id {
 	}
 }
 
-/// This type can be converted into and possibly from an AccountId (which itself is generic).
-pub trait AccountIdConversion<AccountId>: Sized {
-	/// Convert into an account ID. This is infallible.
-	fn into_account(&self) -> AccountId;
-
-	/// Try to convert an account ID into this type. Might not succeed.
-	fn try_from_account(a: &AccountId) -> Option<Self>;
-}
-
-/// Format is b"para" ++ encode(parachain ID) ++ 00.... where 00... is indefinite trailing zeroes to fill AccountId.
-impl<T: Encode + Decode + Default> AccountIdConversion<T> for Id {
-	fn into_account(&self) -> T {
-		(b"para", self).using_encoded(|b|
-			T::decode(&mut TrailingZeroInput(b))
-		).unwrap_or_default()
-	}
-
-	fn try_from_account(x: &T) -> Option<Self> {
-		x.using_encoded(|d| {
-			if &d[0..4] != b"para" { return None }
-			let mut cursor = &d[4..];
-			let result = Decode::decode(&mut cursor)?;
-			if cursor.iter().all(|x| *x == 0) {
-				Some(result)
-			} else {
-				None
-			}
-		})
-	}
-}
-
 impl From<Id> for u32 {
 	fn from(x: Id) -> Self { x.0 }
 }
@@ -156,6 +112,56 @@ impl Id {
 	}
 }
 
+// TODO: Remove all of this, move sr-primitives::AccountIdConversion to own crate and and use that.
+// #360
+struct TrailingZeroInput<'a>(&'a [u8]);
+impl<'a> codec::Input for TrailingZeroInput<'a> {
+	fn remaining_len(&mut self) -> Result<Option<usize>, codec::Error> {
+		Ok(None)
+	}
+
+	fn read(&mut self, into: &mut [u8]) -> Result<(), codec::Error> {
+		let len = into.len().min(self.0.len());
+		into[..len].copy_from_slice(&self.0[..len]);
+		for i in &mut into[len..] {
+			*i = 0;
+		}
+		self.0 = &self.0[len..];
+		Ok(())
+	}
+}
+
+/// This type can be converted into and possibly from an AccountId (which itself is generic).
+pub trait AccountIdConversion<AccountId>: Sized {
+	/// Convert into an account ID. This is infallible.
+	fn into_account(&self) -> AccountId;
+
+ 	/// Try to convert an account ID into this type. Might not succeed.
+	fn try_from_account(a: &AccountId) -> Option<Self>;
+}
+
+ /// Format is b"para" ++ encode(parachain ID) ++ 00.... where 00... is indefinite trailing zeroes to fill AccountId.
+impl<T: Encode + Decode + Default> AccountIdConversion<T> for Id {
+	fn into_account(&self) -> T {
+		(b"para", self).using_encoded(|b|
+			T::decode(&mut TrailingZeroInput(b))
+		).unwrap_or_default()
+	}
+
+ 	fn try_from_account(x: &T) -> Option<Self> {
+		x.using_encoded(|d| {
+			if &d[0..4] != b"para" { return None }
+			let mut cursor = &d[4..];
+			let result = Decode::decode(&mut cursor).ok()?;
+			if cursor.iter().all(|x| *x == 0) {
+				Some(result)
+			} else {
+				None
+			}
+		})
+	}
+}
+
 /// An incoming message.
 #[derive(PartialEq, Eq, Decode)]
 #[cfg_attr(feature = "std", derive(Debug, Encode))]

polkadot/parachain/src/wasm_executor.rs

@@ -431,7 +431,7 @@ pub fn validate_candidate_internal<E: Externalities>(
 			let len_offset = len_offset as usize;
 
 			let len = u32::decode(&mut &len_bytes[..])
-				.ok_or_else(|| Error::BadReturn)? as usize;
+				.map_err(|_| Error::BadReturn)? as usize;
 
 			let return_offset = if len > len_offset {
 				return Err(Error::BadReturn);
@@ -445,8 +445,7 @@ pub fn validate_candidate_internal<E: Externalities>(
 				}
 
 				ValidationResult::decode(&mut &mem[return_offset..][..len])
-					.ok_or_else(|| Error::BadReturn)
+					.map_err(|_| Error::BadReturn.into())
-					.map_err(Into::into)
 			})
 		}
 		_ => Err(Error::BadReturn),

polkadot/parachain/src/wasm_executor/validation_host.rs

@@ -95,7 +95,7 @@ pub fn run_worker(mem_id: &str) -> Result<(), String> {
 				let (header_buf, rest) = data.split_at_mut(1024);
 				let mut header_buf: &[u8] = header_buf;
 				let header = ValidationHeader::decode(&mut header_buf)
-					.ok_or_else(|| format!("Error decoding validation request."))?;
+					.map_err(|_| format!("Error decoding validation request."))?;
 				debug!("Candidate header: {:?}", header);
 				let (code, rest) = rest.split_at_mut(MAX_CODE_MEM);
 				let (code, _) = code.split_at_mut(header.code_size as usize);

polkadot/parachain/tests/adder/mod.rs

@@ -169,7 +169,7 @@ fn processes_messages() {
 	};
 
 	let bad_message_data = vec![1];
-	assert!(AddMessage::decode(&mut &bad_message_data[..]).is_none());
+	assert!(AddMessage::decode(&mut &bad_message_data[..]).is_err());
 
 	let ret = parachain::wasm_executor::validate_candidate(
 		TEST_CODE,

polkadot/primitives/Cargo.toml

@@ -6,14 +6,16 @@ edition = "2018"
 
 [dependencies]
 serde = { version = "1.0", optional = true, features = ["derive"] }
-parity-codec = { version = "4.1", default-features = false, features = ["bit-vec"] }
+parity-scale-codec = { version = "1.0.5", default-features = false, features = ["bit-vec", "derive"] }
 primitives = { package = "substrate-primitives", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+application-crypto = { package = "substrate-application-crypto", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 substrate-client = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 sr-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 rstd = { package = "sr-std", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 runtime_primitives = { package = "sr-primitives", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 polkadot-parachain = { path = "../parachain", default-features = false }
-bitvec = { version = "0.11", default-features = false, features = ["alloc"] }
+bitvec = { version = "0.14.0", default-features = false, features = ["alloc"] }
+babe = { package = "srml-babe", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 
 [dev-dependencies]
 substrate-serializer = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
@@ -22,7 +24,7 @@ pretty_assertions = "0.5.1"
 [features]
 default = ["std"]
 std = [
-	"parity-codec/std",
+	"parity-scale-codec/std",
 	"primitives/std",
 	"substrate-client/std",
 	"rstd/std",
@@ -30,5 +32,6 @@ std = [
 	"runtime_primitives/std",
 	"serde",
 	"polkadot-parachain/std",
-	"bitvec/std"
+	"bitvec/std",
+	"babe/std"
 ]

polkadot/primitives/src/lib.rs

@@ -21,18 +21,19 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
 use runtime_primitives::{generic, AnySignature};
-use primitives::ed25519;
 
 pub use runtime_primitives::traits::{BlakeTwo256, Hash as HashT, Verify};
 
 pub mod parachain;
 
-pub use parity_codec::Compact;
+pub use parity_scale_codec::Compact;
 
 /// An index to a block.
 /// 32-bits will allow for 136 years of blocks assuming 1 block per second.
-/// TODO: switch to u32 (https://github.com/paritytech/polkadot/issues/221)
+pub type BlockNumber = u32;
-pub type BlockNumber = u64;
+
+/// An instant or duration in time.
+pub type Moment = u64;
 
 /// Alias to 512-bit hash when used in the context of a signature on the relay chain.
 /// Equipped with logic for possibly "unsigned" messages.
@@ -41,8 +42,7 @@ pub type Signature = AnySignature;
 /// Alias to an sr25519 or ed25519 key.
 pub type AccountId = <Signature as Verify>::Signer;
 
-/// The type for looking up accounts. We don't expect more than 4 billion of them, but you
+/// The type for looking up accounts. We don't expect more than 4 billion of them.
-/// never know...
 pub type AccountIndex = u32;
 
 /// Identifier for a chain. 32-bit should be plenty.
@@ -52,13 +52,7 @@ pub type ChainId = u32;
 pub type Hash = primitives::H256;
 
 /// Index of a transaction in the relay chain. 32-bit should be plenty.
-pub type Nonce = u64;
+pub type Nonce = u32;
-
-/// Signature with which authorities sign blocks.
-pub type SessionSignature = ed25519::Signature;
-
-/// Identity that authorities use.
-pub type SessionKey = ed25519::Public;
 
 /// The balance of an account.
 /// 128-bits (or 38 significant decimal figures) will allow for 10m currency (10^7) at a resolution
@@ -69,20 +63,6 @@ pub type SessionKey = ed25519::Public;
 /// that 32 bits may be multiplied with a balance in 128 bits without worrying about overflow.
 pub type Balance = u128;
 
-/// The aura crypto scheme defined via the keypair type.
-#[cfg(feature = "std")]
-pub type AuraPair = ed25519::Pair;
-
-/// The Ed25519 pub key of an session that belongs to an Aura authority of the chain.
-pub type AuraId = ed25519::Public;
-
-/// The Parachain crypto scheme defined via the keypair type.
-#[cfg(feature = "std")]
-pub type ParachainPair = ed25519::Pair;
-
-/// The Ed25519 public key used to authenticate signatures on parachain data.
-pub type ParachainPublic = ed25519::Public;
-
 /// Header type.
 pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
 /// Block type.

polkadot/primitives/src/parachain.rs

@@ -18,7 +18,7 @@
 
 use rstd::prelude::*;
 use rstd::cmp::Ordering;
-use parity_codec::{Encode, Decode};
+use parity_scale_codec::{Encode, Decode};
 use bitvec::vec::BitVec;
 use super::{Hash, Balance, BlockNumber};
 
@@ -27,32 +27,56 @@ use serde::{Serialize, Deserialize};
 
 #[cfg(feature = "std")]
 use primitives::bytes;
-use primitives::ed25519;
+use application_crypto::KeyTypeId;
 
 pub use polkadot_parachain::{
 	Id, AccountIdConversion, ParachainDispatchOrigin, UpwardMessage,
 };
 
+/// The key type ID for a collator key.
+pub const COLLATOR_KEY_TYPE_ID: KeyTypeId = KeyTypeId(*b"coll");
+
+mod collator_app {
+	use application_crypto::{app_crypto, sr25519};
+	app_crypto!(sr25519, super::COLLATOR_KEY_TYPE_ID);
+}
+
 /// Identity that collators use.
-pub type CollatorId = ed25519::Public;
+pub type CollatorId = collator_app::Public;
+
+/// A Parachain collator keypair.
+#[cfg(feature = "std")]
+pub type CollatorPair = collator_app::Pair;
 
 /// Signature on candidate's block data by a collator.
-pub type CollatorSignature = ed25519::Signature;
+pub type CollatorSignature = collator_app::Signature;
+
+/// The key type ID for a parachain validator key.
+pub const PARACHAIN_KEY_TYPE_ID: KeyTypeId = KeyTypeId(*b"para");
+
+mod validator_app {
+	use application_crypto::{app_crypto, sr25519};
+	app_crypto!(sr25519, super::PARACHAIN_KEY_TYPE_ID);
+}
 
 /// Identity that parachain validators use when signing validation messages.
 ///
 /// For now we assert that parachain validator set is exactly equivalent to the (Aura) authority set, and
 /// so we define it to be the same type as `SessionKey`. In the future it may have different crypto.
-pub type ValidatorId = super::SessionKey;
+pub type ValidatorId = validator_app::Public;
 
 /// Index of the validator is used as a lightweight replacement of the `ValidatorId` when appropriate.
 pub type ValidatorIndex = u32;
 
+/// A Parachain validator keypair.
+#[cfg(feature = "std")]
+pub type ValidatorPair = validator_app::Pair;
+
  /// Signature with which parachain validators sign blocks.
 ///
 /// For now we assert that parachain validator set is exactly equivalent to the (Aura) authority set, and
 /// so we define it to be the same type as `SessionKey`. In the future it may have different crypto.
-pub type ValidatorSignature = super::SessionSignature;
+pub type ValidatorSignature = validator_app::Signature;
 
 /// Identifier for a chain, either one of a number of parachains or the relay chain.
 #[derive(Copy, Clone, PartialEq, Encode, Decode)]
@@ -143,7 +167,7 @@ impl CandidateReceipt {
 
 	/// Check integrity vs. provided block data.
 	pub fn check_signature(&self) -> Result<(), ()> {
-		use runtime_primitives::traits::Verify;
+		use runtime_primitives::traits::AppVerify;
 
 		if self.signature.verify(self.block_data_hash.as_ref(), &self.collator) {
 			Ok(())
@@ -292,11 +316,11 @@ pub enum ValidityAttestation {
 	/// implicit validity attestation by issuing.
 	/// This corresponds to issuance of a `Candidate` statement.
 	#[codec(index = "1")]
-	Implicit(CollatorSignature),
+	Implicit(ValidatorSignature),
 	/// An explicit attestation. This corresponds to issuance of a
 	/// `Valid` statement.
 	#[codec(index = "2")]
-	Explicit(CollatorSignature),
+	Explicit(ValidatorSignature),
 }
 
 /// An attested candidate.

polkadot/runtime/Cargo.toml

@@ -6,14 +6,14 @@ edition = "2018"
 build = "build.rs"
 
 [dependencies]
-bitvec = { version = "0.11", default-features = false, features = ["alloc"] }
+bitvec = { version = "0.14.0", default-features = false, features = ["alloc"] }
 rustc-hex = { version = "2.0.1", default-features = false }
 log = { version = "0.3", optional = true }
 serde = { version = "1.0", default-features = false }
 serde_derive = { version = "1.0", optional = true }
 safe-mix = { version = "1.0", default-features = false}
 primitives = { package = "polkadot-primitives", path = "../primitives", default-features = false }
-parity-codec = { version = "4.1", default-features = false, features = ["derive"] }
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 substrate-serializer = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 rstd = { package = "sr-std", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 sr-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
@@ -21,9 +21,7 @@ srml-support = { git = "https://github.com/paritytech/substrate", default-featur
 substrate-primitives = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 client = { package = "substrate-client", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 inherents = { package = "substrate-inherents", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
-consensus_aura = { package = "substrate-consensus-aura-primitives", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 offchain_primitives = { package = "substrate-offchain-primitives", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
-aura = { package = "srml-aura", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 authorship = { package = "srml-authorship", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 balances = { package = "srml-balances", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 collective = { package = "srml-collective", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
@@ -32,7 +30,9 @@ democracy = { package = "srml-democracy", git = "https://github.com/paritytech/s
 executive = { package = "srml-executive", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 finality-tracker = { package = "srml-finality-tracker", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 grandpa = { package = "srml-grandpa", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+im-online = { package = "srml-im-online", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 indices = { package = "srml-indices", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+membership = { package = "srml-membership", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 sr-primitives = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 session = { package = "srml-session", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 staking = { package = "srml-staking", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
@@ -41,6 +41,9 @@ system = { package = "srml-system", git = "https://github.com/paritytech/substra
 timestamp = { package = "srml-timestamp", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 treasury = { package = "srml-treasury", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 version = { package = "sr-version", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+babe = { package = "srml-babe", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+babe-primitives = { package = "substrate-consensus-babe-primitives", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+substrate-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
 
 [dev-dependencies]
 hex-literal = "0.2.0"
@@ -48,7 +51,7 @@ libsecp256k1 = "0.2.1"
 tiny-keccak = "1.4.2"
 keyring = { package = "substrate-keyring", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 substrate-trie = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-trie-db = "0.14"
+trie-db = "0.15"
 
 [build-dependencies]
 wasm-builder-runner = { package = "substrate-wasm-builder-runner", version = "1.0.1" }
@@ -60,7 +63,7 @@ std = [
 	"bitvec/std",
 	"primitives/std",
 	"rustc-hex/std",
-	"parity-codec/std",
+	"codec/std",
 	"inherents/std",
 	"substrate-primitives/std",
 	"client/std",
@@ -68,7 +71,6 @@ std = [
 	"rstd/std",
 	"sr-io/std",
 	"srml-support/std",
-	"aura/std",
 	"authorship/std",
 	"balances/std",
 	"collective/std",
@@ -77,7 +79,9 @@ std = [
 	"executive/std",
 	"finality-tracker/std",
 	"grandpa/std",
+	"im-online/std",
 	"indices/std",
+	"membership/std",
 	"sr-primitives/std",
 	"session/std",
 	"staking/std",
@@ -90,5 +94,6 @@ std = [
 	"serde/std",
 	"log",
 	"safe-mix/std",
-	"consensus_aura/std",
+	"babe/std",
+	"babe-primitives/std",
 ]

polkadot/runtime/src/attestations.rs

@@ -20,7 +20,7 @@
 //! as well.
 
 use rstd::prelude::*;
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 use srml_support::{decl_storage, decl_module, ensure};
 
 use primitives::{Hash, parachain::{AttestedCandidate, CandidateReceipt, Id as ParaId}};

polkadot/runtime/src/claims.rs

@@ -21,7 +21,7 @@ use sr_io::{keccak_256, secp256k1_ecdsa_recover};
 use srml_support::{StorageValue, StorageMap, decl_event, decl_storage, decl_module};
 use srml_support::traits::{Currency, Get};
 use system::ensure_none;
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 #[cfg(feature = "std")]
 use sr_primitives::traits::Zero;
 use sr_primitives::{
@@ -200,7 +200,7 @@ mod tests {
 
 	use sr_io::with_externalities;
 	use substrate_primitives::{H256, Blake2Hasher};
-	use parity_codec::{Decode, Encode};
+	use codec::{Decode, Encode};
 	// The testing primitives are very useful for avoiding having to work with signatures
 	// or public keys. `u64` is used as the `AccountId` and no `Signature`s are required.
 	use sr_primitives::{Perbill, traits::{BlakeTwo256, IdentityLookup, ConvertInto}, testing::Header};
@@ -210,20 +210,20 @@ mod tests {
 	impl_outer_origin! {
 		pub enum Origin for Test {}
 	}
-
 	// For testing the module, we construct most of a mock runtime. This means
 	// first constructing a configuration type (`Test`) which `impl`s each of the
 	// configuration traits of modules we want to use.
 	#[derive(Clone, Eq, PartialEq)]
 	pub struct Test;
 	parameter_types! {
-		pub const BlockHashCount: u64 = 250;
+		pub const BlockHashCount: u32 = 250;
 		pub const MaximumBlockWeight: u32 = 4 * 1024 * 1024;
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
 	impl system::Trait for Test {
 		type Origin = Origin;
+		type Call = ();
 		type Index = u64;
 		type BlockNumber = u64;
 		type Hash = H256;
@@ -305,12 +305,12 @@ mod tests {
 	// This function basically just builds a genesis storage key/value store according to
 	// our desired mockup.
 	fn new_test_ext() -> sr_io::TestExternalities<Blake2Hasher> {
-		let mut t = system::GenesisConfig::default().build_storage::<Test>().unwrap().0;
+		let mut t = system::GenesisConfig::default().build_storage::<Test>().unwrap();
 		// We use default for brevity, but you can configure as desired if needed.
-		t.extend(balances::GenesisConfig::<Test>::default().build_storage().unwrap().0);
+		balances::GenesisConfig::<Test>::default().assimilate_storage(&mut t).unwrap();
-		t.extend(GenesisConfig::<Test>{
+		GenesisConfig::<Test>{
 			claims: vec![(alice_eth(), 100)],
-		}.build_storage().unwrap().0);
+		}.assimilate_storage(&mut t).unwrap();
 		t.into()
 	}
 

polkadot/runtime/src/constants.rs

@@ -19,17 +19,31 @@ pub mod currency {
 	use primitives::Balance;
 
 	pub const DOTS: Balance = 1_000_000_000_000;
-	pub const BUCKS: Balance = DOTS / 100;
+	pub const DOLLARS: Balance = DOTS / 100;
-	pub const CENTS: Balance = BUCKS / 100;
+	pub const CENTS: Balance = DOLLARS / 100;
 	pub const MILLICENTS: Balance = CENTS / 1_000;
 }
 
+
 /// Time.
 pub mod time {
-	pub const SECS_PER_BLOCK: u64 = 6;
+	use primitives::{Moment, BlockNumber};
-	pub const MINUTES: u64 = 60 / SECS_PER_BLOCK;
+	pub const MILLISECS_PER_BLOCK: Moment = 6000;
-	pub const HOURS: u64 = MINUTES * 60;
+	pub const SECS_PER_BLOCK: Moment = MILLISECS_PER_BLOCK / 1000;
-	pub const DAYS: u64 = HOURS * 24;
+
+	pub const SLOT_DURATION: Moment = 1650;
+
+	pub const EPOCH_DURATION_IN_BLOCKS: BlockNumber = 10 * MINUTES;
+	pub const EPOCH_DURATION_IN_SLOTS: u64 = {
+		const SLOT_FILL_RATE: f64 = MILLISECS_PER_BLOCK as f64 / SLOT_DURATION as f64;
+
+		(EPOCH_DURATION_IN_BLOCKS as f64 * SLOT_FILL_RATE) as u64
+	};
+
+	// These time units are defined in number of blocks.
+	pub const MINUTES: BlockNumber = 60 / (SECS_PER_BLOCK as BlockNumber);
+	pub const HOURS: BlockNumber = MINUTES * 60;
+	pub const DAYS: BlockNumber = HOURS * 24;
 }
 
 /// Fee-related.

polkadot/runtime/src/curated_grandpa.rs

@@ -17,7 +17,7 @@
 //! A module for manually curated GRANDPA set.
 
 use {grandpa, system};
-use parity_codec::Decode;
+use codec::Decode;
 use sr_primitives::traits::{Hash as HashT, BlakeTwo256, Zero};
 use sr_primitives::weights::SimpleDispatchInfo;
 use rstd::prelude::*;
@@ -79,7 +79,7 @@ decl_module! {
 					let offset = (i * 4 % 32) as usize;
 
 					// number of roles remaining to select from.
-					let remaining = (voter_count - i) as usize;
+					let remaining = rstd::cmp::max(1, (voter_count - i) as usize);
 
 					// 8 32-bit ints per 256-bit seed.
 					let voter_index = u32::decode(&mut &seed[offset..offset + 4]).expect("using 4 bytes for a 32-bit quantity") as usize % remaining;

polkadot/runtime/src/lib.rs

@@ -30,8 +30,8 @@ mod slots;
 use rstd::prelude::*;
 use substrate_primitives::u32_trait::{_1, _2, _3, _4};
 use primitives::{
-	AccountId, AccountIndex, Balance, BlockNumber, Hash, Nonce, SessionKey, Signature,
+	AccountId, AccountIndex, Balance, BlockNumber, Hash, Nonce, Signature, Moment,
-	parachain, AuraId
+	parachain,
 };
 use client::{
 	block_builder::api::{self as block_builder_api, InherentData, CheckInherentsResult},
@@ -44,6 +44,7 @@ use sr_primitives::{
 };
 use version::RuntimeVersion;
 use grandpa::{AuthorityId as GrandpaId, fg_primitives::{self, ScheduledChange}};
+use babe_primitives::AuthorityId as BabeId;
 use elections::VoteIndex;
 #[cfg(any(feature = "std", test))]
 use version::NativeVersion;
@@ -51,6 +52,7 @@ use substrate_primitives::OpaqueMetadata;
 use srml_support::{
 	parameter_types, construct_runtime, traits::{SplitTwoWays, Currency}
 };
+use im_online::AuthorityId as ImOnlineId;
 
 #[cfg(feature = "std")]
 pub use staking::StakerStatus;
@@ -97,7 +99,7 @@ pub fn native_version() -> NativeVersion {
 type NegativeImbalance = <Balances as Currency<AccountId>>::NegativeImbalance;
 
 parameter_types! {
-	pub const BlockHashCount: u64 = 250;
+	pub const BlockHashCount: BlockNumber = 250;
 	pub const MaximumBlockWeight: Weight = 1_000_000_000;
 	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;
@@ -105,6 +107,7 @@ parameter_types! {
 
 impl system::Trait for Runtime {
 	type Origin = Origin;
+	type Call = Call;
 	type Index = Nonce;
 	type BlockNumber = BlockNumber;
 	type Hash = Hash;
@@ -120,9 +123,14 @@ impl system::Trait for Runtime {
 	type AvailableBlockRatio = AvailableBlockRatio;
 }
 
-impl aura::Trait for Runtime {
+parameter_types! {
-	type HandleReport = aura::StakingSlasher<Runtime>;
+	pub const EpochDuration: u64 = EPOCH_DURATION_IN_SLOTS;
-	type AuthorityId = AuraId;
+	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
+}
+
+impl babe::Trait for Runtime {
+	type EpochDuration = EpochDuration;
+	type ExpectedBlockTime = ExpectedBlockTime;
 }
 
 impl indices::Trait for Runtime {
@@ -144,8 +152,8 @@ parameter_types! {
 pub type DealWithFees = SplitTwoWays<
 	Balance,
 	NegativeImbalance,
-	_4, Treasury,     // 4 parts (80%) goes to the treasury.
+	_4, Treasury,   // 4 parts (80%) goes to the treasury.
-	_1, ToAuthor,     // 1 part (20%) goes to the block author.
+	_1, ToAuthor,   // 1 part (20%) goes to the block author.
 >;
 
 impl balances::Trait for Runtime {
@@ -165,22 +173,22 @@ impl balances::Trait for Runtime {
 }
 
 parameter_types! {
-	pub const MinimumPeriod: u64 = SECS_PER_BLOCK / 2;
+	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
 }
 
 impl timestamp::Trait for Runtime {
 	type Moment = u64;
-	type OnTimestampSet = Aura;
+	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
 }
 
 parameter_types! {
-	pub const UncleGenerations: u64 = 0;
+	pub const UncleGenerations: u32 = 0;
 }
 
 // TODO: substrate#2986 implement this properly
 impl authorship::Trait for Runtime {
-	type FindAuthor = ();
+	type FindAuthor = session::FindAccountFromAuthorIndex<Self, Babe>;
 	type UncleGenerations = UncleGenerations;
 	type FilterUncle = ();
 	type EventHandler = ();
@@ -191,11 +199,17 @@ parameter_types! {
 	pub const Offset: BlockNumber = 0;
 }
 
-type SessionHandlers = (Grandpa, Aura);
+type SessionHandlers = (Grandpa, Babe, ImOnline, Parachains);
 impl_opaque_keys! {
 	pub struct SessionKeys {
-		#[id(key_types::ED25519)]
+		#[id(key_types::GRANDPA)]
-		pub ed25519: GrandpaId,
+		pub grandpa: GrandpaId,
+		#[id(key_types::BABE)]
+		pub babe: BabeId,
+		#[id(key_types::IM_ONLINE)]
+		pub im_online: ImOnlineId,
+		#[id(parachain::PARACHAIN_KEY_TYPE_ID)]
+		pub parachain_validator: parachain::ValidatorId,
 	}
 }
 
@@ -208,7 +222,7 @@ impl_opaque_keys! {
 impl session::Trait for Runtime {
 	type OnSessionEnding = Staking;
 	type SessionHandler = SessionHandlers;
-	type ShouldEndSession = session::PeriodicSessions<Period, Offset>;
+	type ShouldEndSession = Babe;
 	type Event = Event;
 	type Keys = SessionKeys;
 	type SelectInitialValidators = Staking;
@@ -243,11 +257,9 @@ parameter_types! {
 	pub const LaunchPeriod: BlockNumber = 28 * 24 * 60 * MINUTES;
 	pub const VotingPeriod: BlockNumber = 28 * 24 * 60 * MINUTES;
 	pub const EmergencyVotingPeriod: BlockNumber = 3 * 24 * 60 * MINUTES;
-	pub const MinimumDeposit: Balance = 100 * BUCKS;
+	pub const MinimumDeposit: Balance = 100 * DOLLARS;
 	pub const EnactmentPeriod: BlockNumber = 30 * 24 * 60 * MINUTES;
-	pub const CooloffPeriod: BlockNumber = 30 * 24 * 60 * MINUTES;
+	pub const CooloffPeriod: BlockNumber = 28 * 24 * 60 * MINUTES;
-
-	pub const AttestationPeriod: BlockNumber = 60 * MINUTES * 3;
 }
 
 impl democracy::Trait for Runtime {
@@ -259,26 +271,35 @@ impl democracy::Trait for Runtime {
 	type VotingPeriod = VotingPeriod;
 	type EmergencyVotingPeriod = EmergencyVotingPeriod;
 	type MinimumDeposit = MinimumDeposit;
-	type ExternalOrigin = collective::EnsureProportionAtLeast<_1, _2, AccountId, CouncilInstance>;
+	/// A straight majority of the council can decide what their next motion is.
-	type ExternalMajorityOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, CouncilInstance>;
+	type ExternalOrigin = collective::EnsureProportionAtLeast<_1, _2, AccountId, CouncilCollective>;
-	type ExternalPushOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, TechnicalInstance>;
+	/// A super-majority can have the next scheduled referendum be a straight majority-carries vote.
-	type EmergencyOrigin = collective::EnsureProportionAtLeast<_1, _1, AccountId, CouncilInstance>;
+	type ExternalMajorityOrigin = collective::EnsureProportionAtLeast<_3, _4, AccountId, CouncilCollective>;
-	type CancellationOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, CouncilInstance>;
+	/// A unanimous council can have the next scheduled referendum be a straight default-carries
-	type VetoOrigin = collective::EnsureMember<AccountId, CouncilInstance>;
+	/// (NTB) vote.
+	type ExternalDefaultOrigin = collective::EnsureProportionAtLeast<_1, _1, AccountId, CouncilCollective>;
+	/// Two thirds of the technical committee can have an ExternalMajority/ExternalDefault vote
+	/// be tabled immediately and with a shorter voting/enactment period.
+	type FastTrackOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, TechnicalCollective>;
+	// To cancel a proposal which has been passed, 2/3 of the council must agree to it.
+	type CancellationOrigin = collective::EnsureProportionAtLeast<_2, _3, AccountId, CouncilCollective>;
+	// Any single technical committee member may veto a coming council proposal, however they can
+	// only do it once and it lasts only for the cooloff period.
+	type VetoOrigin = collective::EnsureMember<AccountId, TechnicalCollective>;
 	type CooloffPeriod = CooloffPeriod;
 }
 
-type CouncilInstance = collective::Instance1;
+type CouncilCollective = collective::Instance1;
-impl collective::Trait<CouncilInstance> for Runtime {
+impl collective::Trait<CouncilCollective> for Runtime {
 	type Origin = Origin;
 	type Proposal = Call;
 	type Event = Event;
 }
 
 parameter_types! {
-	pub const CandidacyBond: Balance = 10 * BUCKS;
+	pub const CandidacyBond: Balance = 10 * DOLLARS;
-	pub const VotingBond: Balance = 1 * BUCKS;
+	pub const VotingBond: Balance = 1 * DOLLARS;
-	pub const VotingFee: Balance = 2 * BUCKS;
+	pub const VotingFee: Balance = 2 * DOLLARS;
 	pub const PresentSlashPerVoter: Balance = 1 * CENTS;
 	pub const CarryCount: u32 = 6;
 	// one additional vote should go by before an inactive voter can be reaped.
@@ -305,24 +326,34 @@ impl elections::Trait for Runtime {
 	type DecayRatio = DecayRatio;
 }
 
-type TechnicalInstance = collective::Instance2;
+type TechnicalCollective = collective::Instance2;
-impl collective::Trait<TechnicalInstance> for Runtime {
+impl collective::Trait<TechnicalCollective> for Runtime {
 	type Origin = Origin;
 	type Proposal = Call;
 	type Event = Event;
 }
 
+impl membership::Trait<membership::Instance1> for Runtime {
+	type Event = Event;
+	type AddOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
+	type RemoveOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
+	type SwapOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
+	type ResetOrigin = collective::EnsureProportionMoreThan<_1, _2, AccountId, CouncilCollective>;
+	type MembershipInitialized = TechnicalCommittee;
+	type MembershipChanged = TechnicalCommittee;
+}
+
 parameter_types! {
 	pub const ProposalBond: Permill = Permill::from_percent(5);
-	pub const ProposalBondMinimum: Balance = 1 * BUCKS;
+	pub const ProposalBondMinimum: Balance = 1 * DOLLARS;
 	pub const SpendPeriod: BlockNumber = 1 * DAYS;
 	pub const Burn: Permill = Permill::from_percent(50);
 }
 
 impl treasury::Trait for Runtime {
 	type Currency = Balances;
-	type ApproveOrigin = collective::EnsureMembers<_4, AccountId, CouncilInstance>;
+	type ApproveOrigin = collective::EnsureMembers<_4, AccountId, CouncilCollective>;
-	type RejectOrigin = collective::EnsureMembers<_2, AccountId, CouncilInstance>;
+	type RejectOrigin = collective::EnsureMembers<_2, AccountId, CouncilCollective>;
 	type Event = Event;
 	type MintedForSpending = ();
 	type ProposalRejection = ();
@@ -332,6 +363,12 @@ impl treasury::Trait for Runtime {
 	type Burn = Burn;
 }
 
+impl im_online::Trait for Runtime {
+	type Call = Call;
+	type Event = Event;
+	type UncheckedExtrinsic = UncheckedExtrinsic;
+}
+
 impl grandpa::Trait for Runtime {
 	type Event = Event;
 }
@@ -347,6 +384,10 @@ impl finality_tracker::Trait for Runtime {
 	type ReportLatency = ReportLatency;
 }
 
+parameter_types! {
+	pub const AttestationPeriod: BlockNumber = 50;
+}
+
 impl attestations::Trait for Runtime {
 	type AttestationPeriod = AttestationPeriod;
 	type ValidatorIdentities = parachains::ValidatorIdentities<Runtime>;
@@ -395,8 +436,8 @@ construct_runtime!(
 		UncheckedExtrinsic = UncheckedExtrinsic
 	{
 		System: system::{Module, Call, Storage, Config, Event},
-		Aura: aura::{Module, Config<T>, Inherent(Timestamp)},
 		Timestamp: timestamp::{Module, Call, Storage, Inherent},
+		Babe: babe::{Module, Call, Storage, Config, Inherent(Timestamp)},
 		Authorship: authorship::{Module, Call, Storage},
 		Indices: indices,
 		Balances: balances,
@@ -406,6 +447,7 @@ construct_runtime!(
 		Council: collective::<Instance1>::{Module, Call, Storage, Origin<T>, Event<T>, Config<T>},
 		TechnicalCommittee: collective::<Instance2>::{Module, Call, Storage, Origin<T>, Event<T>, Config<T>},
 		Elections: elections::{Module, Call, Storage, Event<T>, Config<T>},
+		TechnicalMembership: membership::<Instance1>::{Module, Call, Storage, Event<T>, Config<T>},
 		FinalityTracker: finality_tracker::{Module, Call, Inherent},
 		Grandpa: grandpa::{Module, Call, Storage, Config, Event},
 		CuratedGrandpa: curated_grandpa::{Module, Call, Config<T>, Storage},
@@ -415,6 +457,7 @@ construct_runtime!(
 		Slots: slots::{Module, Call, Storage, Event<T>},
 		Claims: claims::{Module, Call, Storage, Event<T>, Config<T>, ValidateUnsigned},
 		Sudo: sudo,
+		ImOnline: im_online::{Module, Call, Storage, Event, ValidateUnsigned, Config<T>},
 	}
 );
 
@@ -430,6 +473,7 @@ pub type SignedBlock = generic::SignedBlock<Block>;
 pub type BlockId = generic::BlockId<Block>;
 /// The SignedExtension to the basic transaction logic.
 pub type SignedExtra = (
+	system::CheckGenesis<Runtime>,
 	system::CheckEra<Runtime>,
 	system::CheckNonce<Runtime>,
 	system::CheckWeight<Runtime>,
@@ -499,7 +543,7 @@ impl_runtime_apis! {
 
 	impl parachain::ParachainHost<Block> for Runtime {
 		fn validators() -> Vec<parachain::ValidatorId> {
-			Aura::authorities()  // only possible as long as parachain validator crypto === aura crypto
+			Parachains::authorities()
 		}
 		fn duty_roster() -> parachain::DutyRoster {
 			Parachains::calculate_duty_roster().0
@@ -531,19 +575,40 @@ impl_runtime_apis! {
 			None // disable forced changes.
 		}
 
-		fn grandpa_authorities() -> Vec<(SessionKey, u64)> {
+		fn grandpa_authorities() -> Vec<(GrandpaId, u64)> {
 			Grandpa::grandpa_authorities()
 		}
 	}
 
-	impl consensus_aura::AuraApi<Block, AuraId> for Runtime {
+	impl babe_primitives::BabeApi<Block> for Runtime {
-		fn slot_duration() -> u64 {
+		fn startup_data() -> babe_primitives::BabeConfiguration {
-			Aura::slot_duration()
+			// The choice of `c` parameter (where `1 - c` represents the
+			// probability of a slot being empty), is done in accordance to the
+			// slot duration and expected target block time, for safely
+			// resisting network delays of maximum two seconds.
+			// <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>
+			babe_primitives::BabeConfiguration {
+				median_required_blocks: 1000,
+				slot_duration: Babe::slot_duration(),
+				c: (278, 1000),
+			}
 		}
 
-		fn authorities() -> Vec<AuraId> {
+		fn epoch() -> babe_primitives::Epoch {
-			Aura::authorities()
+			babe_primitives::Epoch {
+				start_slot: Babe::epoch_start_slot(),
+				authorities: Babe::authorities(),
+				epoch_index: Babe::epoch_index(),
+				randomness: Babe::randomness(),
+				duration: EpochDuration::get(),
+			}
 		}
 	}
 
+	impl substrate_session::SessionKeys<Block> for Runtime {
+		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
+			let seed = seed.as_ref().map(|s| rstd::str::from_utf8(&s).expect("Seed is an utf8 string"));
+			SessionKeys::generate(seed)
+		}
+	}
 }

polkadot/runtime/src/parachains.rs

@@ -18,14 +18,14 @@
 
 use rstd::prelude::*;
 use rstd::collections::btree_map::BTreeMap;
-use parity_codec::{Encode, Decode, HasCompact};
+use codec::{Encode, Decode, HasCompact};
 use srml_support::{decl_storage, decl_module, fail, ensure};
 
 use sr_primitives::traits::{Hash as HashT, BlakeTwo256, Member, CheckedConversion, Saturating, One};
 use sr_primitives::weights::SimpleDispatchInfo;
-use primitives::{Hash, Balance, ParachainPublic, parachain::{
+use primitives::{Hash, Balance, parachain::{
 	self, Id as ParaId, Chain, DutyRoster, AttestedCandidate, Statement, AccountIdConversion,
-	ParachainDispatchOrigin, UpwardMessage, BlockIngressRoots,
+	ParachainDispatchOrigin, UpwardMessage, BlockIngressRoots, ValidatorId
 }};
 use {system, session};
 use srml_support::{
@@ -33,9 +33,6 @@ use srml_support::{
 	traits::{Currency, Get, WithdrawReason, ExistenceRequirement}
 };
 
-#[cfg(feature = "std")]
-use srml_support::storage::hashed::generator;
-
 use inherents::{ProvideInherent, InherentData, RuntimeString, MakeFatalError, InherentIdentifier};
 
 #[cfg(any(feature = "std", test))]
@@ -217,7 +214,7 @@ const WATERMARK_QUEUE_SIZE: usize = 20000;
 decl_storage! {
 	trait Store for Module<T: Trait> as Parachains {
 		/// All authorities' keys at the moment.
-		pub Authorities get(authorities) config(authorities): Vec<ParachainPublic>;
+		pub Authorities get(authorities) config(authorities): Vec<ValidatorId>;
 		/// Vector of all parachain IDs.
 		pub Parachains get(active_parachains): Vec<ParaId>;
 		/// The parachains registered at present.
@@ -252,27 +249,33 @@ decl_storage! {
 	add_extra_genesis {
 		config(parachains): Vec<(ParaId, Vec<u8>, Vec<u8>)>;
 		config(_phdata): PhantomData<T>;
-		build(|storage: &mut StorageOverlay, _: &mut ChildrenStorageOverlay, config: &GenesisConfig<T>| {
+		build(build::<T>);
-			use sr_primitives::traits::Zero;
-
-			let mut p = config.parachains.clone();
-			p.sort_unstable_by_key(|&(ref id, _, _)| *id);
-			p.dedup_by_key(|&mut (ref id, _, _)| *id);
-
-			let only_ids: Vec<_> = p.iter().map(|&(ref id, _, _)| id).cloned().collect();
-
-			<Parachains as generator::StorageValue<_>>::put(&only_ids, storage);
-
-			for (id, code, genesis) in p {
-				// no ingress -- a chain cannot be routed to until it is live.
-				<Code as generator::StorageMap<_, _>>::insert(&id, &code, storage);
-				<Heads as generator::StorageMap<_, _>>::insert(&id, &genesis, storage);
-				<Watermarks<T> as generator::StorageMap<_, _>>::insert(&id, &Zero::zero(), storage);
-			}
-		});
 	}
 }
 
+#[cfg(feature = "std")]
+fn build<T: Trait>(
+	storage: &mut (StorageOverlay, ChildrenStorageOverlay),
+	config: &GenesisConfig<T>
+) {
+	let mut p = config.parachains.clone();
+	p.sort_unstable_by_key(|&(ref id, _, _)| *id);
+	p.dedup_by_key(|&mut (ref id, _, _)| *id);
+
+	let only_ids: Vec<ParaId> = p.iter().map(|&(ref id, _, _)| id).cloned().collect();
+
+	sr_io::with_storage(storage, || {
+		Parachains::put(&only_ids);
+
+		for (id, code, genesis) in p {
+			// no ingress -- a chain cannot be routed to until it is live.
+			Code::insert(&id, &code);
+			Heads::insert(&id, &genesis);
+			<Watermarks<T>>::insert(&id, &sr_primitives::traits::Zero::zero());
+		}
+	});
+}
+
 decl_module! {
 	/// Parachains module.
 	pub struct Module<T: Trait> for enum Call where origin: <T as system::Trait>::Origin {
@@ -380,7 +383,7 @@ impl<T: Trait> Module<T> {
 		origin: ParachainDispatchOrigin,
 		data: &[u8],
 	) {
-		if let Some(message_call) = T::Call::decode(&mut &data[..]) {
+		if let Ok(message_call) = <T as Trait>::Call::decode(&mut &data[..]) {
 			let origin: <T as Trait>::Origin = match origin {
 				ParachainDispatchOrigin::Signed =>
 					system::RawOrigin::Signed(id.into_account()).into(),
@@ -528,6 +531,7 @@ impl<T: Trait> Module<T> {
 	pub fn calculate_duty_roster() -> (DutyRoster, [u8; 32]) {
 		let parachains = Self::active_parachains();
 		let parachain_count = parachains.len();
+		// TODO: use decode length. substrate #2794
 		let validator_count = Self::authorities().len();
 		let validators_per_parachain = if parachain_count != 0 { (validator_count - 1) / parachain_count } else { 0 };
 
@@ -561,12 +565,12 @@ impl<T: Trait> Module<T> {
 		let orig_seed = seed.clone().to_fixed_bytes();
 
 		// shuffle
-		for i in 0..(validator_count - 1) {
+		for i in 0..(validator_count.saturating_sub(1)) {
 			// 4 bytes of entropy used per cycle, 32 bytes entropy per hash
 			let offset = (i * 4 % 32) as usize;
 
 			// number of roles remaining to select from.
-			let remaining = (validator_count - i) as usize;
+			let remaining = rstd::cmp::max(1, (validator_count - i) as usize);
 
 			// 8 32-bit ints per 256-bit seed.
 			let val_index = u32::decode(&mut &seed[offset..offset + 4])
@@ -656,7 +660,7 @@ impl<T: Trait> Module<T> {
 		-> rstd::result::Result<IncludedBlocks<T>, &'static str>
 	{
 		use primitives::parachain::ValidityAttestation;
-		use sr_primitives::traits::Verify;
+		use sr_primitives::traits::AppVerify;
 
 		// returns groups of slices that have the same chain ID.
 		// assumes the inner slice is sorted by id.
@@ -801,7 +805,7 @@ impl<T: Trait> Module<T> {
 
 			para_block_hashes.push(candidate_hash.unwrap_or_else(|| candidate.candidate().hash()));
 
-      ensure!(
+		ensure!(
 				candidate.validity_votes.len() == expected_votes_len,
 				"Extra untagged validity votes along with candidate"
 			);
@@ -834,7 +838,7 @@ impl<T: Trait> Module<T> {
 }
 
 impl<T: Trait> session::OneSessionHandler<T::AccountId> for Module<T> {
-	type Key = ParachainPublic;
+	type Key = ValidatorId;
 
 	fn on_new_session<'a, I: 'a>(changed: bool, validators: I, _queued: I)
 		where I: Iterator<Item=(&'a T::AccountId, Self::Key)>
@@ -881,10 +885,11 @@ mod tests {
 		testing::{UintAuthorityId, Header},
 	};
 	use primitives::{
-		parachain::{CandidateReceipt, HeadData, ValidityAttestation}, SessionKey,
+		parachain::{CandidateReceipt, HeadData, ValidityAttestation, ValidatorId},
-		BlockNumber, AuraId,
+		BlockNumber,
 	};
-	use keyring::Ed25519Keyring;
+	use crate::constants::time::*;
+	use keyring::Sr25519Keyring;
 	use srml_support::{
 		impl_outer_origin, impl_outer_dispatch, assert_ok, assert_err, parameter_types,
 	};
@@ -905,13 +910,14 @@ mod tests {
 	#[derive(Clone, Eq, PartialEq)]
 	pub struct Test;
 	parameter_types! {
-		pub const BlockHashCount: u64 = 250;
+		pub const BlockHashCount: u32 = 250;
 		pub const MaximumBlockWeight: u32 = 4 * 1024 * 1024;
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
 	impl system::Trait for Test {
 		type Origin = Origin;
+		type Call = Call;
 		type Index = u64;
 		type BlockNumber = u64;
 		type Hash = H256;
@@ -957,9 +963,14 @@ mod tests {
 		type MinimumPeriod = MinimumPeriod;
 	}
 
-	impl aura::Trait for Test {
+	parameter_types! {
-		type HandleReport = aura::StakingSlasher<Test>;
+		pub const EpochDuration: u64 = EPOCH_DURATION_IN_SLOTS;
-		type AuthorityId = AuraId;
+		pub const ExpectedBlockTime: u64 = MILLISECS_PER_BLOCK;
+	}
+
+	impl babe::Trait for Test {
+		type EpochDuration = EpochDuration;
+		type ExpectedBlockTime = ExpectedBlockTime;
 	}
 
 	parameter_types! {
@@ -989,7 +1000,7 @@ mod tests {
 	parameter_types! {
 		pub const SessionsPerEra: session::SessionIndex = 6;
 		pub const BondingDuration: staking::EraIndex = 24 * 28;
-		pub const AttestationPeriod: u64 = 100;
+		pub const AttestationPeriod: BlockNumber = 100;
 	}
 
 	impl staking::Trait for Test {
@@ -1021,17 +1032,19 @@ mod tests {
 
 	fn new_test_ext(parachains: Vec<(ParaId, Vec<u8>, Vec<u8>)>) -> TestExternalities<Blake2Hasher> {
 		use staking::StakerStatus;
+		use babe::AuthorityId as BabeAuthorityId;
+
+		let mut t = system::GenesisConfig::default().build_storage::<Test>().unwrap();
 
-		let (mut t, mut c) = system::GenesisConfig::default().build_storage::<Test>().unwrap();
 		let authority_keys = [
-			Ed25519Keyring::Alice,
+			Sr25519Keyring::Alice,
-			Ed25519Keyring::Bob,
+			Sr25519Keyring::Bob,
-			Ed25519Keyring::Charlie,
+			Sr25519Keyring::Charlie,
-			Ed25519Keyring::Dave,
+			Sr25519Keyring::Dave,
-			Ed25519Keyring::Eve,
+			Sr25519Keyring::Eve,
-			Ed25519Keyring::Ferdie,
+			Sr25519Keyring::Ferdie,
-			Ed25519Keyring::One,
+			Sr25519Keyring::One,
-			Ed25519Keyring::Two,
+			Sr25519Keyring::Two,
 		];
 
 		// stashes are the index.
@@ -1039,7 +1052,11 @@ mod tests {
 			.map(|(i, _k)| (i as u64, UintAuthorityId(i as u64)))
 			.collect();
 
-		let authorities: Vec<_> = authority_keys.iter().map(|k| SessionKey::from(*k)).collect();
+		let authorities: Vec<_> = authority_keys.iter().map(|k| ValidatorId::from(k.public())).collect();
+		let babe_authorities: Vec<_> = authority_keys.iter()
+			.map(|k| BabeAuthorityId::from(k.public()))
+			.map(|k| (k, 1))
+			.collect();
 
 		// controllers are the index + 1000
 		let stakers: Vec<_> = (0..authority_keys.len()).map(|i| (
@@ -1051,23 +1068,24 @@ mod tests {
 
 		let balances: Vec<_> = (0..authority_keys.len()).map(|i| (i as u64, 10_000_000)).collect();
 
-		session::GenesisConfig::<Test> {
-			keys: session_keys,
-		}.assimilate_storage(&mut t, &mut c).unwrap();
 		GenesisConfig::<Test> {
 			parachains,
 			authorities: authorities.clone(),
 			_phdata: Default::default(),
-		}.assimilate_storage(&mut t, &mut c).unwrap();
+		}.assimilate_storage(&mut t).unwrap();
 
-		aura::GenesisConfig::<Test> {
+		session::GenesisConfig::<Test> {
-			authorities,
+			keys: session_keys,
-		}.assimilate_storage(&mut t, &mut c).unwrap();
+		}.assimilate_storage(&mut t).unwrap();
+
+		babe::GenesisConfig {
+			authorities: babe_authorities,
+		}.assimilate_storage(&mut t).unwrap();
 
 		balances::GenesisConfig::<Test> {
 			balances,
 			vesting: vec![],
-		}.assimilate_storage(&mut t, &mut c).unwrap();
+		}.assimilate_storage(&mut t).unwrap();
 
 		staking::GenesisConfig::<Test> {
 			current_era: 0,
@@ -1077,7 +1095,7 @@ mod tests {
 			offline_slash: Perbill::from_percent(5),
 			offline_slash_grace: 0,
 			invulnerables: vec![],
-		}.assimilate_storage(&mut t, &mut c).unwrap();
+		}.assimilate_storage(&mut t).unwrap();
 
 		t.into()
 	}
@@ -1094,8 +1112,10 @@ mod tests {
 		let candidate_hash = candidate.candidate.hash();
 
 		let authorities = Parachains::authorities();
-		let extract_key = |public: SessionKey| {
+		let extract_key = |public: ValidatorId| {
-			Ed25519Keyring::from_raw_public(public.0).unwrap()
+			let mut raw_public = [0; 32];
+			raw_public.copy_from_slice(public.as_ref());
+			Sr25519Keyring::from_raw_public(raw_public).unwrap()
 		};
 
 		let validation_entries = duty_roster.validator_duty.iter()

polkadot/runtime/src/slot_range.rs

@@ -19,7 +19,7 @@
 
 use rstd::{result, ops::Add, convert::{TryFrom, TryInto}};
 use sr_primitives::traits::CheckedSub;
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 
 /// Total number of possible sub ranges of slots.
 pub const SLOT_RANGE_COUNT: usize = 10;

polkadot/runtime/src/slots.rs

@@ -21,7 +21,7 @@
 use rstd::{prelude::*, mem::swap, convert::TryInto};
 use sr_primitives::traits::{CheckedSub, StaticLookup, Zero, One, CheckedConversion, Hash};
 use sr_primitives::weights::SimpleDispatchInfo;
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 use srml_support::{
 	decl_module, decl_storage, decl_event, StorageValue, StorageMap, ensure,
 	traits::{Currency, ReservableCurrency, WithdrawReason, ExistenceRequirement, Get}
@@ -813,13 +813,14 @@ mod tests {
 	#[derive(Clone, Eq, PartialEq)]
 	pub struct Test;
 	parameter_types! {
-		pub const BlockHashCount: u64 = 250;
+		pub const BlockHashCount: u32 = 250;
 		pub const MaximumBlockWeight: u32 = 4 * 1024 * 1024;
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
 	impl system::Trait for Test {
 		type Origin = Origin;
+		type Call = ();
 		type Index = u64;
 		type BlockNumber = u64;
 		type Hash = H256;
@@ -926,11 +927,11 @@ mod tests {
 	// This function basically just builds a genesis storage key/value store according to
 	// our desired mock up.
 	fn new_test_ext() -> sr_io::TestExternalities<Blake2Hasher> {
-		let mut t = system::GenesisConfig::default().build_storage::<Test>().unwrap().0;
+		let mut t = system::GenesisConfig::default().build_storage::<Test>().unwrap();
-		t.extend(balances::GenesisConfig::<Test>{
+		balances::GenesisConfig::<Test>{
 			balances: vec![(1, 10), (2, 20), (3, 30), (4, 40), (5, 50), (6, 60)],
 			vesting: vec![],
-		}.build_storage().unwrap().0);
+		}.assimilate_storage(&mut t).unwrap();
 		t.into()
 	}
 

polkadot/service/Cargo.toml

@@ -8,6 +8,8 @@ edition = "2018"
 parking_lot = "0.9.0"
 lazy_static = "1.0"
 log = "0.4.6"
+futures = "0.1"
+exit-future = "0.1"
 slog = "^2"
 hex-literal = "0.2"
 av_store = { package = "polkadot-availability-store", path = "../availability-store" }
@@ -20,7 +22,6 @@ sr-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot-ma
 sr-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 primitives = { package = "substrate-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 client = { package = "substrate-client", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-aura = { package = "substrate-consensus-aura", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 consensus_common = { package = "substrate-consensus-common", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 grandpa = { package = "substrate-finality-grandpa", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 grandpa_primitives = { package = "substrate-finality-grandpa-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
@@ -29,3 +30,7 @@ service = { package = "substrate-service", git = "https://github.com/paritytech/
 telemetry = { package = "substrate-telemetry", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 transaction_pool = { package = "substrate-transaction-pool", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 substrate-keystore = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
+srml_babe = { package = "srml-babe", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+im-online = { package = "srml-im-online", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
+babe = { package = "substrate-consensus-babe", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
+babe-primitives = { package = "substrate-consensus-babe-primitives", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }

polkadot/service/src/chain_spec.rs

@@ -16,17 +16,20 @@
 
 //! Polkadot chain configurations.
 
-use primitives::{ed25519, sr25519, Pair, crypto::UncheckedInto};
+use primitives::{Pair, Public, crypto::UncheckedInto};
-use polkadot_primitives::{AccountId, SessionKey};
+use polkadot_primitives::{AccountId, parachain::ValidatorId};
 use polkadot_runtime::{
-	GenesisConfig, CouncilConfig, ElectionsConfig, DemocracyConfig, SystemConfig, AuraConfig,
+	GenesisConfig, CouncilConfig, ElectionsConfig, DemocracyConfig, SystemConfig, BabeConfig,
 	SessionConfig, StakingConfig, BalancesConfig, Perbill, SessionKeys, TechnicalCommitteeConfig,
 	GrandpaConfig, SudoConfig, IndicesConfig, CuratedGrandpaConfig, StakerStatus, WASM_BINARY,
-	ClaimsConfig,
+	ClaimsConfig, ImOnlineConfig, ParachainsConfig
 };
 use polkadot_runtime::constants::{currency::DOTS, time::*};
 use telemetry::TelemetryEndpoints;
 use hex_literal::hex;
+use babe_primitives::AuthorityId as BabeId;
+use grandpa::AuthorityId as GrandpaId;
+use im_online::AuthorityId as ImOnlineId;
 
 const STAGING_TELEMETRY_URL: &str = "wss://telemetry.polkadot.io/submit/";
 const DEFAULT_PROTOCOL_ID: &str = "dot";
@@ -34,34 +37,58 @@ const DEFAULT_PROTOCOL_ID: &str = "dot";
 /// Specialised `ChainSpec`.
 pub type ChainSpec = ::service::ChainSpec<GenesisConfig>;
 
-pub fn poc_3_testnet_config() -> Result<ChainSpec, String> {
+pub fn kusama_config() -> Result<ChainSpec, String> {
-	ChainSpec::from_embedded(include_bytes!("../res/alexander.json"))
+	ChainSpec::from_json_bytes(&include_bytes!("../res/kusama.json")[..])
+}
+
+fn session_keys(
+	babe: BabeId,
+	grandpa: GrandpaId,
+	im_online: ImOnlineId,
+	parachain_validator: ValidatorId
+) -> SessionKeys {
+	SessionKeys { babe, grandpa, im_online, parachain_validator }
 }
 
 fn staging_testnet_config_genesis() -> GenesisConfig {
 	// subkey inspect "$SECRET"
 	let endowed_accounts = vec![
-		hex!["42d69e4222c08885a4d6ff65f01852ba4a1599b683ad66286e4603d825e26b49"].unchecked_into(), // 5DaLmkrGTFvSTHBpShqqqRYaydw1sT4u3NCogYiE8Q1LqUUp
+		hex!["12b782529c22032ed4694e0f6e7d486be7daa6d12088f6bc74d593b3900b8438"].unchecked_into(), // 5CVFESwfkk7NmhQ6FwHCM9roBvr9BGa4vJHFYU8DnGQxrXvz
 	];
 
 	// for i in 1 2 3 4; do for j in stash controller; do subkey inspect "$SECRET//$i//$j"; done; done
-	// for i in 1 2 3 4; do for j in session; do subkey -e inspect "$SECRET//$i//$j"; done; done
+	// for i in 1 2 3 4; do for j in babe; do subkey --sr25519 inspect "$SECRET//$i//$j"; done; done
-	let initial_authorities: Vec<(AccountId, AccountId, SessionKey)> = vec![(
+	// for i in 1 2 3 4; do for j in grandpa; do subkey --ed25519 inspect "$SECRET//$i//$j"; done; done
-		hex!["543cf15f6a0289e48eb4f30d451d1731c5fb0e1b2c5a4b99439c11808af3432d"].unchecked_into(), // 5Dy9yz2mjwDmTgjkDFxjPBpovKmKAgTndiRiTp4DfrTEdUvi
+	// for i in 1 2 3 4; do for j in im_online; do subkey --sr25519 inspect "$SECRET//$i//$j"; done; done
-		hex!["8a6ea654337e4a28ce7be124f73ad84702619942722d01cc271e5b421653c56d"].unchecked_into(), // 5FCDLPUMZpZPRfouRfQDZp74typV9SjSxPgG6ymwe5Z3Sbko
+	// for i in 1 2 3 4; do for j in parachains; do subkey --sr25519 inspect "$SECRET//$i//$j"; done; done
-		hex!["03644a181bc4e4197914aa109f3c97b6fe8c4787a82a1ddfab54e4ebedd8ab20"].unchecked_into(), // 5C99nwu8Ucq1yUJfajviwbqMAejpmaERHpmkPVWiFdxiF6yg
+	let initial_authorities: Vec<(AccountId, AccountId, BabeId, GrandpaId, ImOnlineId, ValidatorId)> = vec![(
+		hex!["32a5718e87d16071756d4b1370c411bbbb947eb62f0e6e0b937d5cbfc0ea633b"].unchecked_into(), // 5DD7Q4VEfPTLEdn11CnThoHT5f9xKCrnofWJL5SsvpTghaAT
+		hex!["bee39fe862c85c91aaf343e130d30b643c6ea0b4406a980206f1df8331f7093b"].unchecked_into(), // 5GNzaEqhrZAtUQhbMe2gn9jBuNWfamWFZHULryFwBUXyd1cG
+		hex!["a639b507ee1585e0b6498ff141d6153960794523226866d1b44eba3f25f36356"].unchecked_into(), // 5FpewyS2VY8Cj3tKgSckq8ECkjd1HKHvBRnWhiHqRQsWfFC1
+		hex!["76620f7c98bce8619979c2b58cf2b0aff71824126d2b039358729dad993223db"].unchecked_into(), // 5EjvdwATjyFFikdZibVvx1q5uBHhphS2Mnsq5c7yfaYK25vm
+		hex!["a639b507ee1585e0b6498ff141d6153960794523226866d1b44eba3f25f36356"].unchecked_into(), // 5FpewyS2VY8Cj3tKgSckq8ECkjd1HKHvBRnWhiHqRQsWfFC1
+		hex!["a639b507ee1585e0b6498ff141d6153960794523226866d1b44eba3f25f36356"].unchecked_into(), // 5FpewyS2VY8Cj3tKgSckq8ECkjd1HKHvBRnWhiHqRQsWfFC1
 	),(
-		hex!["c4957aa922910004f3b006d638b034070407dcb21e0905cb5cca9b58aec7fa3e"].unchecked_into(), // 5GWTeVF49JR9dAMVe4rRAAMXuhEjRAhSiYqQV4LbwpHTDLei
+		hex!["b496c98a405ceab59b9e970e59ef61acd7765a19b704e02ab06c1cdfe171e40f"].unchecked_into(), // 5G9VGb8ESBeS8Ca4or43RfhShzk9y7T5iTmxHk5RJsjZwsRx
-		hex!["1adea46f5c3d272cd6426b338dd77d5bca3aff615338c82a0f02f4c62d89280f"].unchecked_into(), // 5CfwEv8TQKnszHNhYPuij6EtLZHCcaN3DgzfPCozcS9oxZzB
+		hex!["86d3a7571dd60139d297e55d8238d0c977b2e208c5af088f7f0136b565b0c103"].unchecked_into(), // 5F7V9Y5FcxKXe1aroqvPeRiUmmeQwTFcL3u9rrPXcMuMiCNx
-		hex!["d739e1bb4c2b13ea1fff9be72e72d3bb1b364eb3b26176ab9a9512d386b7510b"].unchecked_into(), // 5GvuM53k1Z4nAB5zXJFgkRSHv4Bqo4BsvgbQWNWkiWZTMwWY
+		hex!["765e46067adac4d1fe6c783aa2070dfa64a19f84376659e12705d1734b3eae01"].unchecked_into(), // 5GvuM53k1Z4nAB5zXJFgkRSHv4Bqo4BsvgbQWNWkiWZTMwWY
+		hex!["e2234d661bee4a04c38392c75d1566200aa9e6ae44dd98ee8765e4cc9af63cb7"].unchecked_into(), // 5HBDAaybNqjmY7ww8ZcZZY1L5LHxvpnyfqJwoB7HhR6raTmG
+		hex!["765e46067adac4d1fe6c783aa2070dfa64a19f84376659e12705d1734b3eae01"].unchecked_into(), // 5GvuM53k1Z4nAB5zXJFgkRSHv4Bqo4BsvgbQWNWkiWZTMwWY
+		hex!["765e46067adac4d1fe6c783aa2070dfa64a19f84376659e12705d1734b3eae01"].unchecked_into(), // 5GvuM53k1Z4nAB5zXJFgkRSHv4Bqo4BsvgbQWNWkiWZTMwWY
 	),(
-		hex!["6c3d14686e97d393814a09bea4246b9f273dcdbdef6731dcab3430b36820f135"].unchecked_into(), // 5EWdAzp9aJseLKVNeWJwE2K8PD47qzMbKVysCXr67xnEohYL
+		hex!["ae12f70078a22882bf5135d134468f77301927aa67c376e8c55b7ff127ace115"].unchecked_into(), // 5FzwpgGvk2kk9agow6KsywLYcPzjYc8suKej2bne5G5b9YU3
-		hex!["7a73b9fcb97cee5c2240d88ca9baea06758fac450efe6f90a72014c939d41857"].unchecked_into(), // 5EqG5RSujgrtSBB5DQvR1Z2EMxAe92sAdWNTNHtX4nL2MkPi
+		hex!["7addb914ec8486bbc60643d2647685dcc06373401fa80e09813b630c5831d54b"].unchecked_into(), // 5EqoZhVC2BcsM4WjvZNidu2muKAbu5THQTBKe3EjvxXkdP7A
-		hex!["145791f7187d91398d8b445598f62be39b766d6e33e9d57b69c4d23fca218d7f"].unchecked_into(), // 5CXNq1mSKJT4Sc2CbyBBdANeSkbUvdWvE4czJjKXfBHi9sX5
+		hex!["664eae1ca4713dd6abf8c15e6c041820cda3c60df97dc476c2cbf7cb82cb2d2e"].unchecked_into(), // 5CXNq1mSKJT4Sc2CbyBBdANeSkbUvdWvE4czJjKXfBHi9sX5
+		hex!["5b57ed1443c8967f461db1f6eb2ada24794d163a668f1cf9d9ce3235dfad8799"].unchecked_into(), // 5E8ULLQrDAtWhfnVfZmX41Yux86zNAwVJYguWJZVWrJvdhBe
+		hex!["664eae1ca4713dd6abf8c15e6c041820cda3c60df97dc476c2cbf7cb82cb2d2e"].unchecked_into(), // 5CXNq1mSKJT4Sc2CbyBBdANeSkbUvdWvE4czJjKXfBHi9sX5
+		hex!["664eae1ca4713dd6abf8c15e6c041820cda3c60df97dc476c2cbf7cb82cb2d2e"].unchecked_into(), // 5CXNq1mSKJT4Sc2CbyBBdANeSkbUvdWvE4czJjKXfBHi9sX5
 	),(
-		hex!["be6726c17ad7b5844c9e0ab6a1698d00d88bf183f0f82d8ec9627531c9ddc934"].unchecked_into(), // 5GNMbce1P2FfjvcPcoUxzjj6bYSRdQ2RpsbCyF9ozwMxx3NS
+		hex!["0867dbb49721126df589db100dda728dc3b475cbf414dad8f72a1d5e84897252"].unchecked_into(), // 5CFj6Kg9rmVn1vrqpyjau2ztyBzKeVdRKwNPiA3tqhB5HPqq
-		hex!["123b9048ba61265547ad3f336dfa48c16851ba1a96691e5d1ab3be1725db0614"].unchecked_into(), // 5CUcQvAgMzXMpQSz8mgzeiswDFHED88NiEK4byfS5TLaTJow
+		hex!["26ab2b4b2eba2263b1e55ceb48f687bb0018130a88df0712fbdaf6a347d50e2a"].unchecked_into(), // 5CwQXP6nvWzigFqNhh2jvCaW9zWVzkdveCJY3tz2MhXMjTon
-		hex!["8abecfa66704176be23df099bf441ea65444992d63b3ced3e76a17a4d38b0b0e"].unchecked_into(), // 5FCd9Y7RLNyxz5wnCAErfsLbXGG34L2BaZRHzhiJcMUMd5zd
+		hex!["2adb17a5cafbddc7c3e00ec45b6951a8b12ce2264235b4def342513a767e5d3d"].unchecked_into(), // 5FCd9Y7RLNyxz5wnCAErfsLbXGG34L2BaZRHzhiJcMUMd5zd
+		hex!["e60d23f49e93c1c1f2d7c115957df5bbd7faf5ebf138d1e9d02e8b39a1f63df0"].unchecked_into(), // 5HGLmrZsiTFTPp3QoS1W8w9NxByt8PVq79reqvdxNcQkByqK
+		hex!["2adb17a5cafbddc7c3e00ec45b6951a8b12ce2264235b4def342513a767e5d3d"].unchecked_into(), // 5FCd9Y7RLNyxz5wnCAErfsLbXGG34L2BaZRHzhiJcMUMd5zd
+		hex!["2adb17a5cafbddc7c3e00ec45b6951a8b12ce2264235b4def342513a767e5d3d"].unchecked_into(), // 5FCd9Y7RLNyxz5wnCAErfsLbXGG34L2BaZRHzhiJcMUMd5zd
 	)];
 
 	const ENDOWMENT: u128 = 1_000_000 * DOTS;
@@ -87,7 +114,7 @@ fn staging_testnet_config_genesis() -> GenesisConfig {
 		session: Some(SessionConfig {
 			keys: initial_authorities.iter().map(|x| (
 				x.0.clone(),
-				SessionKeys { ed25519: x.2.clone() },
+				session_keys(x.2.clone(), x.3.clone(), x.4.clone(), x.5.clone()),
 			)).collect::<Vec<_>>(),
 		}),
 		staking: Some(StakingConfig {
@@ -114,16 +141,25 @@ fn staging_testnet_config_genesis() -> GenesisConfig {
 			term_duration: 28 * DAYS,
 			desired_seats: 0,
 		}),
+		membership_Instance1: Some(Default::default()),
+		babe: Some(BabeConfig {
+			authorities: initial_authorities.iter().map(|x| (x.2.clone(), 1)).collect(),
+		}),
+		grandpa: Some(GrandpaConfig {
+			authorities: initial_authorities.iter().map(|x| (x.3.clone(), 1)).collect(),
+		}),
+		im_online: Some(ImOnlineConfig {
+			gossip_at: 0,
+			keys: initial_authorities.iter().map(|x| x.4.clone()).collect(),
+		}),
+		parachains: Some(ParachainsConfig {
+			authorities: initial_authorities.iter().map(|x| x.5.clone()).collect(),
+			parachains: vec![],
+			_phdata: Default::default(),
+		}),
 		sudo: Some(SudoConfig {
 			key: endowed_accounts[0].clone(),
 		}),
-		grandpa: Some(GrandpaConfig {
-			authorities: initial_authorities.iter().map(|x| (x.2.clone(), 1)).collect(),
-		}),
-		aura: Some(AuraConfig {
-			authorities: initial_authorities.iter().map(|x| x.2.clone()).collect(),
-		}),
-		parachains: Some(Default::default()),
 		curated_grandpa: Some(CuratedGrandpaConfig {
 			shuffle_period: 1024,
 		}),
@@ -148,49 +184,53 @@ pub fn staging_testnet_config() -> ChainSpec {
 	)
 }
 
-/// Helper function to generate AccountId from seed
+/// Helper function to generate a crypto pair from seed
-pub fn get_account_id_from_seed(seed: &str) -> AccountId {
+pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
-	sr25519::Pair::from_string(&format!("//{}", seed), None)
+	TPublic::Pair::from_string(&format!("//{}", seed), None)
 		.expect("static values are valid; qed")
 		.public()
 }
 
-/// Helper function to generate SessionKey from seed
-pub fn get_session_key_from_seed(seed: &str) -> SessionKey {
-	ed25519::Pair::from_string(&format!("//{}", seed), None)
-		.expect("static values are valid; qed")
-		.public()
-}
 
 /// Helper function to generate stash, controller and session key from seed
-pub fn get_authority_keys_from_seed(seed: &str) -> (AccountId, AccountId, SessionKey) {
+pub fn get_authority_keys_from_seed(seed: &str) -> (
+	AccountId,
+	AccountId,
+	BabeId,
+	GrandpaId,
+	ImOnlineId,
+	ValidatorId
+) {
 	(
-		get_account_id_from_seed(&format!("{}//stash", seed)),
+		get_from_seed::<AccountId>(&format!("{}//stash", seed)),
-		get_account_id_from_seed(seed),
+		get_from_seed::<AccountId>(seed),
-		get_session_key_from_seed(seed),
+		get_from_seed::<BabeId>(seed),
+		get_from_seed::<GrandpaId>(seed),
+		get_from_seed::<ImOnlineId>(seed),
+		get_from_seed::<ValidatorId>(seed),
 	)
 }
 
 /// Helper function to create GenesisConfig for testing
 pub fn testnet_genesis(
-	initial_authorities: Vec<(AccountId, AccountId, SessionKey)>,
+	initial_authorities: Vec<(AccountId, AccountId, BabeId, GrandpaId, ImOnlineId, ValidatorId)>,
 	root_key: AccountId,
 	endowed_accounts: Option<Vec<AccountId>>,
 ) -> GenesisConfig {
 	let endowed_accounts: Vec<AccountId> = endowed_accounts.unwrap_or_else(|| {
 		vec![
-			get_account_id_from_seed("Alice"),
+			get_from_seed::<AccountId>("Alice"),
-			get_account_id_from_seed("Bob"),
+			get_from_seed::<AccountId>("Bob"),
-			get_account_id_from_seed("Charlie"),
+			get_from_seed::<AccountId>("Charlie"),
-			get_account_id_from_seed("Dave"),
+			get_from_seed::<AccountId>("Dave"),
-			get_account_id_from_seed("Eve"),
+			get_from_seed::<AccountId>("Eve"),
-			get_account_id_from_seed("Ferdie"),
+			get_from_seed::<AccountId>("Ferdie"),
-			get_account_id_from_seed("Alice//stash"),
+			get_from_seed::<AccountId>("Alice//stash"),
-			get_account_id_from_seed("Bob//stash"),
+			get_from_seed::<AccountId>("Bob//stash"),
-			get_account_id_from_seed("Charlie//stash"),
+			get_from_seed::<AccountId>("Charlie//stash"),
-			get_account_id_from_seed("Dave//stash"),
+			get_from_seed::<AccountId>("Dave//stash"),
-			get_account_id_from_seed("Eve//stash"),
+			get_from_seed::<AccountId>("Eve//stash"),
-			get_account_id_from_seed("Ferdie//stash"),
+			get_from_seed::<AccountId>("Ferdie//stash"),
 		]
 	});
 
@@ -214,7 +254,7 @@ pub fn testnet_genesis(
 		session: Some(SessionConfig {
 			keys: initial_authorities.iter().map(|x| (
 				x.0.clone(),
-				SessionKeys { ed25519: x.2.clone() },
+				session_keys(x.2.clone(), x.3.clone(), x.4.clone(), x.5.clone()),
 			)).collect::<Vec<_>>(),
 		}),
 		staking: Some(StakingConfig {
@@ -240,22 +280,31 @@ pub fn testnet_genesis(
 		elections: Some(ElectionsConfig {
 			members: endowed_accounts.iter()
 				.filter(|&endowed| initial_authorities.iter()
-					.find(|&(_, controller, _)| controller == endowed)
+					.find(|&(_, controller, _, _, _, _)| controller == endowed)
 					.is_none()
 				).map(|a| (a.clone(), 1000000)).collect(),
 			presentation_duration: 10,
 			term_duration: 1000000,
 			desired_seats,
 		}),
-		parachains: Some(Default::default()),
+		membership_Instance1: Some(Default::default()),
-		sudo: Some(SudoConfig {
+		babe: Some(BabeConfig {
-			key: root_key,
-		}),
-		grandpa: Some(GrandpaConfig {
 			authorities: initial_authorities.iter().map(|x| (x.2.clone(), 1)).collect(),
 		}),
-		aura: Some(AuraConfig {
+		grandpa: Some(GrandpaConfig {
-			authorities: initial_authorities.iter().map(|x| x.2.clone()).collect(),
+			authorities: initial_authorities.iter().map(|x| (x.3.clone(), 1)).collect(),
+		}),
+		im_online: Some(ImOnlineConfig {
+			gossip_at: 0,
+			keys: initial_authorities.iter().map(|x| x.4.clone()).collect(),
+		}),
+		parachains: Some(ParachainsConfig {
+			authorities: initial_authorities.iter().map(|x| x.5.clone()).collect(),
+			parachains: vec![],
+			_phdata: Default::default(),
+		}),
+		sudo: Some(SudoConfig {
+			key: root_key,
 		}),
 		curated_grandpa: Some(CuratedGrandpaConfig {
 			shuffle_period: 1024,
@@ -272,7 +321,7 @@ fn development_config_genesis() -> GenesisConfig {
 		vec![
 			get_authority_keys_from_seed("Alice"),
 		],
-		get_account_id_from_seed("Alice"),
+		get_from_seed::<AccountId>("Alice"),
 		None,
 	)
 }
@@ -297,7 +346,7 @@ fn local_testnet_genesis() -> GenesisConfig {
 			get_authority_keys_from_seed("Alice"),
 			get_authority_keys_from_seed("Bob"),
 		],
-		get_account_id_from_seed("Alice"),
+		get_from_seed::<AccountId>("Alice"),
 		None,
 	)
 }

polkadot/service/src/lib.rs

@@ -18,18 +18,21 @@
 
 pub mod chain_spec;
 
+use futures::prelude::*;
 use client::LongestChain;
 use consensus_common::SelectChain;
 use std::sync::Arc;
 use std::time::Duration;
-use grandpa_primitives::AuthorityPair as GrandpaPair;
+use polkadot_primitives::{parachain, Block, Hash, BlockId};
-use polkadot_primitives::{parachain, Block, Hash, BlockId, AuraPair};
 use polkadot_runtime::{GenesisConfig, RuntimeApi};
 use polkadot_network::gossip::{self as network_gossip, Known};
-use primitives::{ed25519, Pair};
+use service::{
-use service::{FactoryFullConfiguration, FullBackend, LightBackend, FullExecutor, LightExecutor};
+	FactoryFullConfiguration, FullBackend, LightBackend, FullExecutor, LightExecutor,
+	error::Error as ServiceError, TelemetryOnConnect
+};
 use transaction_pool::txpool::{Pool as TransactionPool};
-use aura::{import_queue, start_aura, AuraImportQueue, SlotDuration};
+use babe::{import_queue, start_babe, BabeImportQueue, Config};
+use grandpa::{self, FinalityProofProvider as GrandpaFinalityProofProvider};
 use inherents::InherentDataProviders;
 use log::info;
 pub use service::{
@@ -49,6 +52,20 @@ pub use consensus::run_validation_worker;
 /// All configuration for the polkadot node.
 pub type Configuration = FactoryFullConfiguration<Factory>;
 
+type BabeBlockImportForService<F> = babe::BabeBlockImport<
+	FullBackend<F>,
+	FullExecutor<F>,
+	<F as crate::ServiceFactory>::Block,
+	grandpa::BlockImportForService<F>,
+	<F as crate::ServiceFactory>::RuntimeApi,
+	client::Client<
+		FullBackend<F>,
+		FullExecutor<F>,
+		<F as crate::ServiceFactory>::Block,
+		<F as crate::ServiceFactory>::RuntimeApi
+	>,
+>;
+
 /// Polkadot-specific configuration.
 pub struct CustomConfiguration {
 	/// Set to `Some` with a collator `CollatorId` and desired parachain
@@ -58,11 +75,15 @@ pub struct CustomConfiguration {
 	/// Intermediate state during setup. Will be removed in future. Set to `None`.
 	// FIXME: rather than putting this on the config, let's have an actual intermediate setup state
 	// https://github.com/paritytech/substrate/issues/1134
-	pub grandpa_import_setup: Option<(
+	pub import_setup: Option<(
-		grandpa::BlockImportForService<Factory>,
+		BabeBlockImportForService<Factory>,
-		grandpa::LinkHalfForService<Factory>
+		grandpa::LinkHalfForService<Factory>,
+		babe::BabeLink,
 	)>,
 
+	/// Tasks that were created by previous setup steps and should be spawned.
+	pub tasks_to_spawn: Option<Vec<Box<dyn Future<Item = (), Error = ()> + Send>>>,
+
 	/// Maximal `block_data` size.
 	pub max_block_data_size: Option<u64>,
 
@@ -73,8 +94,9 @@ impl Default for CustomConfiguration {
 	fn default() -> Self {
 		Self {
 			collating_for: None,
-			grandpa_import_setup: None,
+			import_setup: None,
 			inherent_data_providers: InherentDataProviders::new(),
+			tasks_to_spawn: None,
 			max_block_data_size: None,
 		}
 	}
@@ -150,93 +172,37 @@ impl PolkadotService for Service<LightComponents<Factory>> {
 service::construct_service_factory! {
 	struct Factory {
 		Block = Block,
-		ConsensusPair = AuraPair,
-		FinalityPair = GrandpaPair,
 		RuntimeApi = RuntimeApi,
-		NetworkProtocol = PolkadotProtocol {
+		NetworkProtocol = PolkadotProtocol { |config: &Configuration| Ok(PolkadotProtocol::new(config.custom.collating_for.clone())) },
-			|config: &Configuration| Ok(PolkadotProtocol::new(config.custom.collating_for.clone()))
-		},
 		RuntimeDispatch = polkadot_executor::Executor,
-		FullTransactionPoolApi = TxChainApi<FullBackend<Self>, FullExecutor<Self>>
+		FullTransactionPoolApi = transaction_pool::ChainApi<client::Client<FullBackend<Self>, FullExecutor<Self>, Block, RuntimeApi>, Block>
-			{ |config, client| Ok(TransactionPool::new(config, TxChainApi::new(client))) },
+			{ |config, client| Ok(TransactionPool::new(config, transaction_pool::ChainApi::new(client))) },
-		LightTransactionPoolApi = TxChainApi<LightBackend<Self>, LightExecutor<Self>>
+		LightTransactionPoolApi = transaction_pool::ChainApi<client::Client<LightBackend<Self>, LightExecutor<Self>, Block, RuntimeApi>, Block>
-			{ |config, client| Ok(TransactionPool::new(config, TxChainApi::new(client))) },
+			{ |config, client| Ok(TransactionPool::new(config, transaction_pool::ChainApi::new(client))) },
 		Genesis = GenesisConfig,
 		Configuration = CustomConfiguration,
-		FullService = FullComponents<Self>
+		FullService = FullComponents<Self> { |config: FactoryFullConfiguration<Self>| FullComponents::<Factory>::new(config) },
-			{ |config: FactoryFullConfiguration<Self>| {
+		AuthoritySetup = {
-				FullComponents::<Factory>::new(config)
+			|mut service: Self::FullService| {
-			} },
+				let (block_import, link_half, babe_link) = service.config_mut().custom.import_setup.take()
-		AuthoritySetup = { |mut service: Self::FullService| {
-				use polkadot_network::validation::ValidationNetwork;
-
-				let (block_import, link_half) = service.config.custom.grandpa_import_setup.take()
 					.expect("Link Half and Block Import are present for Full Services or setup failed before. qed");
 
-				// always run GRANDPA in order to sync.
+				// spawn any futures that were created in the previous setup steps
-				{
+				if let Some(tasks) = service.config_mut().custom.tasks_to_spawn.take() {
-					let grandpa_key = if service.config.disable_grandpa {
+					for task in tasks {
-						None
+						service.spawn_task(
-					} else {
+							task.select(service.on_exit())
-						service.authority_key()
+								.map(|_| ())
-					};
+								.map_err(|_| ())
-
+						);
-					let config = grandpa::Config {
-						local_key: grandpa_key.map(Arc::new),
-						// FIXME #1578 make this available through chainspec
-						gossip_duration: Duration::from_millis(333),
-						justification_period: 4096,
-						name: Some(service.config.name.clone())
-					};
-
-					match config.local_key {
-						None => {
-							service.spawn_task(grandpa::run_grandpa_observer(
-								config,
-								link_half,
-								service.network(),
-								service.on_exit(),
-							)?);
-						},
-						Some(_) => {
-							use service::TelemetryOnConnect;
-
-							let telemetry_on_connect = TelemetryOnConnect {
-								telemetry_connection_sinks: service.telemetry_on_connect_stream(),
-							};
-
-							let grandpa_config = grandpa::GrandpaParams {
-								config: config,
-								link: link_half,
-								network: service.network(),
-								inherent_data_providers: service.config.custom.inherent_data_providers.clone(),
-								on_exit: service.on_exit(),
-								telemetry_on_connect: Some(telemetry_on_connect),
-							};
-							service.spawn_task(grandpa::run_grandpa_voter(grandpa_config)?);
-						},
 					}
 				}
 
-				let extrinsic_store = {
+				if service.config().roles != service::Roles::AUTHORITY {
-					use std::path::PathBuf;
+					return Ok(service);
+				}
 
-					let mut path = PathBuf::from(service.config.database_path.clone());
+				if service.config().custom.collating_for.is_some() {
-					path.push("availability");
-
-					av_store::Store::new(::av_store::Config {
-						cache_size: None,
-						path,
-					})?
-				};
-
-				// run authorship only if authority.
-				let aura_key = match service.authority_key()  {
-					Some(key) => Arc::new(key),
-					None => return Ok(service),
-				};
-
-				if service.config.custom.collating_for.is_some() {
 					info!(
 						"The node cannot start as an authority because it is also configured to run as a collator."
 					);
@@ -275,6 +241,19 @@ service::construct_service_factory! {
 					},
 				);
 
+				use polkadot_network::validation::ValidationNetwork;
+				let extrinsic_store = {
+					use std::path::PathBuf;
+
+					let mut path = PathBuf::from(service.config().database_path.clone());
+					path.push("availability");
+
+					av_store::Store::new(::av_store::Config {
+						cache_size: None,
+						path,
+					})?
+				};
+
 				// collator connections and validation network both fulfilled by this
 				let validation_network = ValidationNetwork::new(
 					service.network(),
@@ -283,63 +262,150 @@ service::construct_service_factory! {
 					service.client(),
 					polkadot_network::validation::WrappedExecutor(service.spawn_task_handle()),
 				);
-				let proposer_factory = consensus::ProposerFactory::new(
+				let proposer = consensus::ProposerFactory::new(
 					client.clone(),
 					select_chain.clone(),
 					validation_network.clone(),
 					validation_network,
 					service.transaction_pool(),
 					Arc::new(service.spawn_task_handle()),
-					aura_key.clone(),
+					service.keystore(),
 					extrinsic_store,
-					SlotDuration::get_or_compute(&*client)?,
+					polkadot_runtime::constants::time::SLOT_DURATION,
-					service.config.custom.max_block_data_size,
+					service.config().custom.max_block_data_size,
 				);
 
-				info!("Using authority key {}", aura_key.public());
+				let client = service.client();
-				let task = start_aura(
+				let select_chain = service.select_chain().ok_or(ServiceError::SelectChainRequired)?;
-					SlotDuration::get_or_compute(&*client)?,
+
-					aura_key,
+				let babe_config = babe::BabeParams {
-					client.clone(),
+					config: Config::get_or_compute(&*client)?,
+					keystore: service.keystore(),
+					client,
 					select_chain,
 					block_import,
-					Arc::new(proposer_factory),
+					env: proposer,
-					service.network(),
+					sync_oracle: service.network(),
-					service.config.custom.inherent_data_providers.clone(),
+					inherent_data_providers: service.config().custom.inherent_data_providers.clone(),
-					service.config.force_authoring,
+					force_authoring: service.config().force_authoring,
-				)?;
+					time_source: babe_link,
+				};
+
+				let babe = start_babe(babe_config)?;
+				let select = babe.select(service.on_exit()).then(|_| Ok(()));
+				service.spawn_task(Box::new(select));
+
+				let config = grandpa::Config {
+					// FIXME substrate#1578 make this available through chainspec
+					gossip_duration: Duration::from_millis(333),
+					justification_period: 4096,
+					name: Some(service.config().name.clone()),
+					keystore: Some(service.keystore()),
+				};
+
+				match (service.config().roles.is_authority(), service.config().disable_grandpa) {
+					(false, false) => {
+						// start the lightweight GRANDPA observer
+						service.spawn_task(Box::new(grandpa::run_grandpa_observer(
+							config,
+							link_half,
+							service.network(),
+							service.on_exit(),
+						)?));
+					},
+					(true, false) => {
+						// start the full GRANDPA voter
+						let telemetry_on_connect = TelemetryOnConnect {
+							telemetry_connection_sinks: service.telemetry_on_connect_stream(),
+						};
+						let grandpa_config = grandpa::GrandpaParams {
+							config: config,
+							link: link_half,
+							network: service.network(),
+							inherent_data_providers: service.config().custom.inherent_data_providers.clone(),
+							on_exit: service.on_exit(),
+							telemetry_on_connect: Some(telemetry_on_connect),
+						};
+						service.spawn_task(Box::new(grandpa::run_grandpa_voter(grandpa_config)?));
+					},
+					(_, true) => {
+						grandpa::setup_disabled_grandpa(
+							service.client(),
+							&service.config().custom.inherent_data_providers,
+							service.network(),
+						)?;
+					},
+				}
+				// let config = grandpa::Config {
+				// 	// FIXME #1578 make this available through chainspec
+				// 	gossip_duration: Duration::from_millis(333),
+				// 	justification_period: 4096,
+				// 	name: Some(service.config().name.clone()),
+				// 	keystore: Some(service.keystore()),
+				// };
+
+				// if !service.config().disable_grandpa {
+				// 	if service.config().roles.is_authority() {
+				// 		let telemetry_on_connect = TelemetryOnConnect {
+				// 			telemetry_connection_sinks: service.telemetry_on_connect_stream(),
+				// 		};
+				// 		let grandpa_config = grandpa::GrandpaParams {
+				// 			config: config,
+				// 			link: link_half,
+				// 			network: service.network(),
+				// 			inherent_data_providers: service.config().custom.inherent_data_providers.clone(),
+				// 			on_exit: service.on_exit(),
+				// 			telemetry_on_connect: Some(telemetry_on_connect),
+				// 		};
+				// 		service.spawn_task(Box::new(grandpa::run_grandpa_voter(grandpa_config)?));
+				// 	} else {
+				// 		service.spawn_task(Box::new(grandpa::run_grandpa_observer(
+				// 			config,
+				// 			link_half,
+				// 			service.network(),
+				// 			service.on_exit(),
+				// 		)?));
+				// 	}
+				// }
+
+				// // regardless of whether grandpa is started or not, when
+				// // authoring blocks we expect inherent data regarding what our
+				// // last finalized block is, to be available.
+				// grandpa::register_finality_tracker_inherent_data_provider(
+				// 	service.client(),
+				// 	&service.config().custom.inherent_data_providers,
+				// )?;
 
-				service.spawn_task(task);
 				Ok(service)
-			}},
+			}
+		},
 		LightService = LightComponents<Self>
 			{ |config| <LightComponents<Factory>>::new(config) },
-		FullImportQueue = AuraImportQueue<
+		FullImportQueue = BabeImportQueue<Self::Block>
-			Self::Block,
-		>
 			{ |config: &mut FactoryFullConfiguration<Self>, client: Arc<FullClient<Self>>, select_chain: Self::SelectChain| {
-				let slot_duration = SlotDuration::get_or_compute(&*client)?;
-
 				let (block_import, link_half) =
 					grandpa::block_import::<_, _, _, RuntimeApi, FullClient<Self>, _>(
 						client.clone(), client.clone(), select_chain
 					)?;
 				let justification_import = block_import.clone();
 
-				config.custom.grandpa_import_setup = Some((block_import.clone(), link_half));
+				let (import_queue, babe_link, babe_block_import, pruning_task) = import_queue(
-				import_queue::<_, _, ed25519::Pair>(
+					Config::get_or_compute(&*client)?,
-					slot_duration,
+					block_import,
-					Box::new(block_import),
 					Some(Box::new(justification_import)),
 					None,
+					client.clone(),
 					client,
 					config.custom.inherent_data_providers.clone(),
-				).map_err(Into::into)
+				)?;
+
+				config.custom.import_setup = Some((babe_block_import.clone(), link_half, babe_link));
+				config.custom.tasks_to_spawn = Some(vec![Box::new(pruning_task)]);
+
+				Ok(import_queue)
 			}},
-		LightImportQueue = AuraImportQueue<
+		LightImportQueue = BabeImportQueue<Self::Block>
-			Self::Block,
+			{ |config: &FactoryFullConfiguration<Self>, client: Arc<LightClient<Self>>| {
-		>
-			{ |config: &mut FactoryFullConfiguration<Self>, client: Arc<LightClient<Self>>| {
 				#[allow(deprecated)]
 				let fetch_checker = client.backend().blockchain().fetcher()
 					.upgrade()
@@ -348,17 +414,22 @@ service::construct_service_factory! {
 				let block_import = grandpa::light_block_import::<_, _, _, RuntimeApi, LightClient<Self>>(
 					client.clone(), Arc::new(fetch_checker), client.clone()
 				)?;
+
 				let finality_proof_import = block_import.clone();
 				let finality_proof_request_builder = finality_proof_import.create_finality_proof_request_builder();
 
-				import_queue::<_, _, ed25519::Pair>(
+				// FIXME: pruning task isn't started since light client doesn't do `AuthoritySetup`.
-					SlotDuration::get_or_compute(&*client)?,
+				let (import_queue, ..) = import_queue(
-					Box::new(block_import),
+					Config::get_or_compute(&*client)?,
+					block_import,
 					None,
 					Some(Box::new(finality_proof_import)),
+					client.clone(),
 					client,
 					config.custom.inherent_data_providers.clone(),
-				).map_err(Into::into).map(|q| (q, finality_proof_request_builder))
+				)?;
+
+				Ok((import_queue, finality_proof_request_builder))
 			}},
 		SelectChain = LongestChain<FullBackend<Self>, Self::Block>
 			{ |config: &FactoryFullConfiguration<Self>, client: Arc<FullClient<Self>>| {
@@ -367,7 +438,7 @@ service::construct_service_factory! {
 			}
 		},
 		FinalityProofProvider = { |client: Arc<FullClient<Self>>| {
-			Ok(Some(Arc::new(grandpa::FinalityProofProvider::new(client.clone(), client)) as _))
+			Ok(Some(Arc::new(GrandpaFinalityProofProvider::new(client.clone(), client)) as _))
 		}},
 	}
 }

polkadot/statement-table/Cargo.toml

@@ -5,6 +5,6 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-parity-codec = { version = "4.1", features = ["derive"] }
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 substrate-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 primitives = { package = "polkadot-primitives", path = "../primitives" }

polkadot/statement-table/src/generic.rs

@@ -28,7 +28,7 @@ use std::collections::hash_map::{HashMap, Entry};
 use std::hash::Hash;
 use std::fmt::Debug;
 
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 
 /// Context for the statement table.
 pub trait Context {

polkadot/test-parachains/adder/Cargo.toml

@@ -8,7 +8,7 @@ build = "build.rs"
 
 [dependencies]
 parachain = { package = "polkadot-parachain", path = "../../parachain/", default-features = false }
-parity-codec = { version = "4.1", default-features = false, features = ["derive"] }
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 tiny-keccak = "1.5.0"
 dlmalloc = { version = "0.1.3", features = ["global"], optional = true }
 

polkadot/test-parachains/adder/collator/src/main.rs

@@ -63,7 +63,7 @@ impl ParachainContext for AdderContext {
 	) -> Result<(BlockData, HeadData, Extrinsic), InvalidHead>
 	{
 		let adder_head = AdderHead::decode(&mut &status.head_data.0[..])
-			.ok_or(InvalidHead)?;
+			.map_err(|_| InvalidHead)?;
 
 		let mut db = self.db.lock();
 

polkadot/test-parachains/adder/src/lib.rs

@@ -20,7 +20,7 @@
 
 #![cfg_attr(feature = "no_std", feature(core_intrinsics, lang_items, core_panic_info, alloc_error_handler))]
 
-use parity_codec::{Encode, Decode};
+use codec::{Encode, Decode};
 
 #[cfg(feature = "no_std")]
 mod wasm_validation;
@@ -80,7 +80,7 @@ pub fn process_messages<I, T>(iterable: I) -> u64
 	where I: IntoIterator<Item=T>, T: AsRef<[u8]>
 {
 	iterable.into_iter()
-		.filter_map(|data| AddMessage::decode(&mut data.as_ref()))
+		.filter_map(|data| AddMessage::decode(&mut data.as_ref()).ok())
 		.fold(0u64, |a, c| a.overflowing_add(c.amount).0)
 }
 

polkadot/validation/Cargo.toml

@@ -13,24 +13,24 @@ tokio = "0.1.7"
 derive_more = "0.14.0"
 log = "0.4.6"
 exit-future = "0.1"
-parity-codec = "4.1"
+codec = { package = "parity-scale-codec", version = "~1.0.0", default-features = false, features = ["derive"] }
 extrinsic_store = { package = "polkadot-availability-store", path = "../availability-store" }
 parachain = { package = "polkadot-parachain", path = "../parachain" }
 polkadot-primitives = { path = "../primitives" }
 polkadot-runtime = { path = "../runtime" }
 table = { package = "polkadot-statement-table", path = "../statement-table" }
-aura = { package = "substrate-consensus-aura", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-aura_primitives = { package = "substrate-consensus-aura-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 grandpa = { package = "substrate-finality-grandpa", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 inherents = { package = "substrate-inherents", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 consensus = { package = "substrate-consensus-common", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 primitives = { package = "substrate-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 transaction_pool = { package = "substrate-transaction-pool", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-runtime_aura = { package = "srml-aura", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 client = { package = "substrate-client", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 trie = { package = "substrate-trie", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 runtime_primitives = { package = "sr-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
-bitvec = { version = "0.11", default-features = false, features = ["alloc"] }
+bitvec = { version = "0.14.0", default-features = false, features = ["alloc"] }
+runtime_babe = { package = "srml-babe", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
+babe-primitives = { package = "substrate-consensus-babe-primitives", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
+keystore = { package = "substrate-keystore", git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }
 
 [dev-dependencies]
 substrate-keyring = { git = "https://github.com/paritytech/substrate", branch = "polkadot-master" }

polkadot/validation/src/attestation_service.rs

@@ -33,11 +33,11 @@ use extrinsic_store::Store as ExtrinsicStore;
 use futures::prelude::*;
 use futures03::{TryStreamExt as _, StreamExt as _};
 use log::error;
-use primitives::ed25519;
+use polkadot_primitives::{Block, BlockId};
-use polkadot_primitives::{Block, BlockId, AuraId};
 use polkadot_primitives::parachain::{CandidateReceipt, ParachainHost};
 use runtime_primitives::traits::{ProvideRuntimeApi, Header as HeaderT};
-use aura::AuraApi;
+use babe_primitives::BabeApi;
+use keystore::KeyStorePtr;
 
 use tokio::{timer::Interval, runtime::current_thread::Runtime as LocalRuntime};
 use log::{warn, debug};
@@ -50,14 +50,14 @@ type TaskExecutor = Arc<dyn futures::future::Executor<Box<dyn Future<Item = (),
 pub(crate) fn fetch_candidates<P: BlockBody<Block>>(client: &P, block: &BlockId)
 	-> ClientResult<Option<impl Iterator<Item=CandidateReceipt>>>
 {
-	use parity_codec::{Encode, Decode};
+	use codec::{Encode, Decode};
 	use polkadot_runtime::{Call, ParachainsCall, UncheckedExtrinsic as RuntimeExtrinsic};
 
 	let extrinsics = client.block_body(block)?;
 	Ok(match extrinsics {
 		Some(extrinsics) => extrinsics
 			.into_iter()
-			.filter_map(|ex| RuntimeExtrinsic::decode(&mut ex.encode().as_slice()))
+			.filter_map(|ex| RuntimeExtrinsic::decode(&mut ex.encode().as_slice()).ok())
 			.filter_map(|ex| match ex.function {
 				Call::Parachains(ParachainsCall::set_heads(heads)) => {
 					Some(heads.into_iter().map(|c| c.candidate))
@@ -114,7 +114,7 @@ pub(crate) fn start<C, N, P, SC>(
 	select_chain: SC,
 	parachain_validation: Arc<crate::ParachainValidation<C, N, P>>,
 	thread_pool: TaskExecutor,
-	key: Arc<ed25519::Pair>,
+	keystore: KeyStorePtr,
 	extrinsic_store: ExtrinsicStore,
 	max_block_data_size: Option<u64>,
 ) -> ServiceHandle
@@ -123,7 +123,7 @@ pub(crate) fn start<C, N, P, SC>(
 		<C::Collation as IntoFuture>::Future: Send + 'static,
 		P: BlockchainEvents<Block> + BlockBody<Block>,
 		P: ProvideRuntimeApi + HeaderBackend<Block> + Send + Sync + 'static,
-		P::Api: ParachainHost<Block> + BlockBuilder<Block> + AuraApi<Block, AuraId>,
+		P::Api: ParachainHost<Block> + BlockBuilder<Block> + BabeApi<Block>,
 		N: Network + Send + Sync + 'static,
 		N::TableRouter: Send + 'static,
 		<N::BuildTableRouter as IntoFuture>::Future: Send + 'static,
@@ -138,7 +138,8 @@ pub(crate) fn start<C, N, P, SC>(
 		let notifications = {
 			let client = client.clone();
 			let validation = parachain_validation.clone();
-			let key = key.clone();
+
+			let keystore = keystore.clone();
 
 			client.import_notification_stream()
 				.map(|v| Ok::<_, ()>(v)).compat()
@@ -148,7 +149,7 @@ pub(crate) fn start<C, N, P, SC>(
 						let res = validation.get_or_instantiate(
 							parent_hash,
 							notification.header.parent_hash().clone(),
-							key.clone(),
+							&keystore,
 							max_block_data_size,
 						);
 

polkadot/validation/src/collation.rs

@@ -27,7 +27,7 @@ use polkadot_primitives::{Block, Hash, BlockId, Balance, parachain::{
 }};
 use runtime_primitives::traits::ProvideRuntimeApi;
 use parachain::{wasm_executor::{self, ExternalitiesError, ExecutionMode}, MessageRef, UpwardMessageRef};
-
+use trie::TrieConfiguration;
 use futures::prelude::*;
 use log::debug;
 
@@ -186,7 +186,7 @@ impl std::error::Error for Error {
 pub fn message_queue_root<A, I: IntoIterator<Item=A>>(messages: I) -> Hash
 	where A: AsRef<[u8]>
 {
-	::trie::ordered_trie_root::<primitives::Blake2Hasher, _, _>(messages)
+	::trie::trie_types::Layout::<primitives::Blake2Hasher>::ordered_trie_root(messages)
 }
 
 /// Compute the set of egress roots for all given outgoing messages.

polkadot/validation/src/error.rs

@@ -17,7 +17,7 @@
 //! Errors that can occur during the validation process.
 
 use runtime_primitives::RuntimeString;
-use primitives::ed25519::Public as AuthorityId;
+use polkadot_primitives::parachain::ValidatorId;
 
 /// Error type for validation
 #[derive(Debug, derive_more::Display, derive_more::From)]
@@ -35,7 +35,7 @@ pub enum Error {
 	},
 	/// Local account not a validator at this block
 	#[display(fmt = "Local account ID ({:?}) not a validator at this block.", _0)]
-	NotValidator(AuthorityId),
+	NotValidator(ValidatorId),
 	/// Unexpected error checking inherents
 	#[display(fmt = "Unexpected error while checking inherents: {}", _0)]
 	InherentError(RuntimeString),

polkadot/validation/src/evaluation.rs

@@ -18,7 +18,7 @@
 
 use super::MAX_TRANSACTIONS_SIZE;
 
-use parity_codec::Encode;
+use codec::Encode;
 use polkadot_primitives::{Block, Hash, BlockNumber};
 use polkadot_primitives::parachain::Id as ParaId;
 

polkadot/validation/src/lib.rs

@@ -31,21 +31,21 @@
 
 use std::{collections::{HashMap, HashSet}, pin::Pin, sync::Arc, time::{self, Duration, Instant}};
 
-use aura::{SlotDuration, AuraApi};
+use babe_primitives::BabeApi;
 use client::{BlockchainEvents, BlockBody};
 use client::blockchain::HeaderBackend;
 use client::block_builder::api::BlockBuilder as BlockBuilderApi;
-use parity_codec::Encode;
+use codec::Encode;
 use consensus::SelectChain;
 use extrinsic_store::Store as ExtrinsicStore;
 use parking_lot::Mutex;
-use polkadot_primitives::{Hash, Block, BlockId, BlockNumber, Header, SessionKey, AuraId};
+use polkadot_primitives::{Hash, Block, BlockId, BlockNumber, Header};
 use polkadot_primitives::parachain::{
 	Id as ParaId, Chain, DutyRoster, Extrinsic as ParachainExtrinsic, CandidateReceipt,
 	ParachainHost, AttestedCandidate, Statement as PrimitiveStatement, Message, OutgoingMessage,
-	CollatorSignature, Collation, PoVBlock,
+	Collation, PoVBlock, ValidatorSignature, ValidatorPair, ValidatorId
 };
-use primitives::{Pair, ed25519};
+use primitives::Pair;
 use runtime_primitives::{
 	traits::{ProvideRuntimeApi, Header as HeaderT, DigestFor}, ApplyError
 };
@@ -58,10 +58,9 @@ use futures03::{future::{self, Either, FutureExt}, task::Context, stream::Stream
 use collation::CollationFetch;
 use dynamic_inclusion::DynamicInclusion;
 use inherents::InherentData;
-use runtime_aura::timestamp::TimestampInherentData;
+use runtime_babe::timestamp::TimestampInherentData;
 use log::{info, debug, warn, trace, error};
-
+use keystore::KeyStorePtr;
-use ed25519::Public as AuthorityId;
 
 type TaskExecutor = Arc<dyn futures::future::Executor<Box<dyn Future<Item = (), Error = ()> + Send>> + Send + Sync>;
 
@@ -145,7 +144,7 @@ pub trait Network {
 	fn communication_for(
 		&self,
 		table: Arc<SharedTable>,
-		authorities: &[SessionKey],
+		authorities: &[ValidatorId],
 		exit: exit_future::Exit,
 	) -> Self::BuildTableRouter;
 }
@@ -154,7 +153,7 @@ pub trait Network {
 #[derive(Debug, Clone, Default)]
 pub struct GroupInfo {
 	/// Authorities meant to check validity of candidates.
-	validity_guarantors: HashSet<SessionKey>,
+	validity_guarantors: HashSet<ValidatorId>,
 	/// Number of votes needed for validity.
 	needed_validity: usize,
 }
@@ -162,32 +161,32 @@ pub struct GroupInfo {
 /// Sign a table statement against a parent hash.
 /// The actual message signed is the encoded statement concatenated with the
 /// parent hash.
-pub fn sign_table_statement(statement: &Statement, key: &ed25519::Pair, parent_hash: &Hash) -> CollatorSignature {
+pub fn sign_table_statement(statement: &Statement, key: &ValidatorPair, parent_hash: &Hash) -> ValidatorSignature {
 	// we sign using the primitive statement type because that's what the runtime
 	// expects. These types probably encode the same way so this clone could be optimized
 	// out in the future.
 	let mut encoded = PrimitiveStatement::from(statement.clone()).encode();
 	encoded.extend(parent_hash.as_ref());
 
-	key.sign(&encoded).into()
+	key.sign(&encoded)
 }
 
 /// Check signature on table statement.
-pub fn check_statement(statement: &Statement, signature: &CollatorSignature, signer: SessionKey, parent_hash: &Hash) -> bool {
+pub fn check_statement(statement: &Statement, signature: &ValidatorSignature, signer: ValidatorId, parent_hash: &Hash) -> bool {
-	use runtime_primitives::traits::Verify;
+	use runtime_primitives::traits::AppVerify;
 
 	let mut encoded = PrimitiveStatement::from(statement.clone()).encode();
 	encoded.extend(parent_hash.as_ref());
 
-	signature.verify(&encoded[..], &signer.into())
+	signature.verify(&encoded[..], &signer)
 }
 
 /// Compute group info out of a duty roster and a local authority set.
 pub fn make_group_info(
 	roster: DutyRoster,
-	authorities: &[AuthorityId],
+	authorities: &[ValidatorId],
-	local_id: AuthorityId,
+	local_id: Option<ValidatorId>,
-) -> Result<(HashMap<ParaId, GroupInfo>, LocalDuty), Error> {
+) -> Result<(HashMap<ParaId, GroupInfo>, Option<LocalDuty>), Error> {
 	if roster.validator_duty.len() != authorities.len() {
 		return Err(Error::InvalidDutyRosterLength {
 			expected: authorities.len(),
@@ -200,7 +199,7 @@ pub fn make_group_info(
 
 	let duty_iter = authorities.iter().zip(&roster.validator_duty);
 	for (authority, v_duty) in duty_iter {
-		if authority == &local_id {
+		if Some(authority) == local_id.as_ref() {
 			local_validation = Some(v_duty.clone());
 		}
 
@@ -219,16 +218,24 @@ pub fn make_group_info(
 		live_group.needed_validity = validity_len / 2 + validity_len % 2;
 	}
 
-	match local_validation {
-		Some(local_validation) => {
-			let local_duty = LocalDuty {
-				validation: local_validation,
-			};
 
-			Ok((map, local_duty))
+	let local_duty = local_validation.map(|v| LocalDuty {
-		}
+		validation: v
-		None => return Err(Error::NotValidator(local_id)),
+	});
-	}
+
+	Ok((map, local_duty))
+
+}
+
+// finds the first key we are capable of signing with out of the given set of validators,
+// if any.
+fn signing_key(validators: &[ValidatorId], keystore: &KeyStorePtr) -> Option<Arc<ValidatorPair>> {
+	let keystore = keystore.read();
+	validators.iter()
+		.find_map(|v| {
+			keystore.key_pair::<ValidatorPair>(&v).ok()
+		})
+		.map(|pair| Arc::new(pair))
 }
 
 /// Constructs parachain-agreement instances.
@@ -252,7 +259,7 @@ impl<C, N, P> ParachainValidation<C, N, P> where
 	C: Collators + Send + 'static,
 	N: Network,
 	P: ProvideRuntimeApi + HeaderBackend<Block> + BlockBody<Block> + Send + Sync + 'static,
-	P::Api: ParachainHost<Block> + BlockBuilderApi<Block> + AuraApi<Block, AuraId>,
+	P::Api: ParachainHost<Block> + BlockBuilderApi<Block>,
 	<C::Collation as IntoFuture>::Future: Send + 'static,
 	N::TableRouter: Send + 'static,
 	<N::BuildTableRouter as IntoFuture>::Future: Send + 'static,
@@ -268,7 +275,7 @@ impl<C, N, P> ParachainValidation<C, N, P> where
 		&self,
 		parent_hash: Hash,
 		grandparent_hash: Hash,
-		sign_with: Arc<ed25519::Pair>,
+		keystore: &KeyStorePtr,
 		max_block_data_size: Option<u64>,
 	)
 		-> Result<Arc<AttestationTracker>, Error>
@@ -280,7 +287,8 @@ impl<C, N, P> ParachainValidation<C, N, P> where
 
 		let id = BlockId::hash(parent_hash);
 
-		let authorities = self.client.runtime_api().authorities(&id)?;
+		let validators = self.client.runtime_api().validators(&id)?;
+		let sign_with = signing_key(&validators[..], keystore);
 
 		// compute the parent candidates, if we know of them.
 		// this will allow us to circulate outgoing messages to other peers as necessary.
@@ -312,14 +320,14 @@ impl<C, N, P> ParachainValidation<C, N, P> where
 
 		let (group_info, local_duty) = make_group_info(
 			duty_roster,
-			&authorities,
+			&validators,
-			sign_with.public(),
+			sign_with.as_ref().map(|k| k.public()),
 		)?;
 
 		info!(
 			"Starting parachain attestation session on top of parent {:?}. Local parachain duty is {:?}",
 			parent_hash,
-			local_duty.validation,
+			local_duty,
 		);
 
 		let active_parachains = self.client.runtime_api().active_parachains(&id)?;
@@ -327,9 +335,9 @@ impl<C, N, P> ParachainValidation<C, N, P> where
 		debug!(target: "validation", "Active parachains: {:?}", active_parachains);
 
 		let table = Arc::new(SharedTable::new(
-			&authorities,
+			validators.clone(),
 			group_info,
-			sign_with.clone(),
+			sign_with,
 			parent_hash,
 			self.extrinsic_store.clone(),
 			max_block_data_size,
@@ -339,11 +347,11 @@ impl<C, N, P> ParachainValidation<C, N, P> where
 
 		let router = self.network.communication_for(
 			table.clone(),
-			&authorities,
+			&validators,
 			exit.clone(),
 		);
 
-		if let Chain::Parachain(id) = local_duty.validation {
+		if let Some(Chain::Parachain(id)) = local_duty.as_ref().map(|d| d.validation) {
 			self.launch_work(parent_hash, id, router, max_block_data_size, exit);
 		}
 
@@ -446,9 +454,9 @@ struct AttestationTracker {
 pub struct ProposerFactory<C, N, P, SC, TxApi: PoolChainApi> {
 	parachain_validation: Arc<ParachainValidation<C, N, P>>,
 	transaction_pool: Arc<Pool<TxApi>>,
-	key: Arc<ed25519::Pair>,
+	keystore: KeyStorePtr,
 	_service_handle: ServiceHandle,
-	aura_slot_duration: SlotDuration,
+	babe_slot_duration: u64,
 	_select_chain: SC,
 	max_block_data_size: Option<u64>,
 }
@@ -458,7 +466,7 @@ impl<C, N, P, SC, TxApi> ProposerFactory<C, N, P, SC, TxApi> where
 	<C::Collation as IntoFuture>::Future: Send + 'static,
 	P: BlockchainEvents<Block> + BlockBody<Block>,
 	P: ProvideRuntimeApi + HeaderBackend<Block> + Send + Sync + 'static,
-	P::Api: ParachainHost<Block> + BlockBuilderApi<Block> + AuraApi<Block, AuraId>,
+	P::Api: ParachainHost<Block> + BlockBuilderApi<Block> + BabeApi<Block>,
 	N: Network + Send + Sync + 'static,
 	N::TableRouter: Send + 'static,
 	<N::BuildTableRouter as IntoFuture>::Future: Send + 'static,
@@ -473,9 +481,9 @@ impl<C, N, P, SC, TxApi> ProposerFactory<C, N, P, SC, TxApi> where
 		collators: C,
 		transaction_pool: Arc<Pool<TxApi>>,
 		thread_pool: TaskExecutor,
-		key: Arc<ed25519::Pair>,
+		keystore: KeyStorePtr,
 		extrinsic_store: ExtrinsicStore,
-		aura_slot_duration: SlotDuration,
+		babe_slot_duration: u64,
 		max_block_data_size: Option<u64>,
 	) -> Self {
 		let parachain_validation = Arc::new(ParachainValidation {
@@ -492,7 +500,7 @@ impl<C, N, P, SC, TxApi> ProposerFactory<C, N, P, SC, TxApi> where
 			_select_chain.clone(),
 			parachain_validation.clone(),
 			thread_pool,
-			key.clone(),
+			keystore.clone(),
 			extrinsic_store,
 			max_block_data_size,
 		);
@@ -500,9 +508,9 @@ impl<C, N, P, SC, TxApi> ProposerFactory<C, N, P, SC, TxApi> where
 		ProposerFactory {
 			parachain_validation,
 			transaction_pool,
-			key,
+			keystore,
 			_service_handle: service_handle,
-			aura_slot_duration,
+			babe_slot_duration,
 			_select_chain,
 			max_block_data_size,
 		}
@@ -514,7 +522,7 @@ impl<C, N, P, SC, TxApi> consensus::Environment<Block> for ProposerFactory<C, N,
 	N: Network,
 	TxApi: PoolChainApi<Block=Block>,
 	P: ProvideRuntimeApi + HeaderBackend<Block> + BlockBody<Block> + Send + Sync + 'static,
-	P::Api: ParachainHost<Block> + BlockBuilderApi<Block> + AuraApi<Block, AuraId>,
+	P::Api: ParachainHost<Block> + BlockBuilderApi<Block> + BabeApi<Block>,
 	<C::Collation as IntoFuture>::Future: Send + 'static,
 	N::TableRouter: Send + 'static,
 	<N::BuildTableRouter as IntoFuture>::Future: Send + 'static,
@@ -524,16 +532,16 @@ impl<C, N, P, SC, TxApi> consensus::Environment<Block> for ProposerFactory<C, N,
 	type Error = Error;
 
 	fn init(
-		&self,
+		&mut self,
 		parent_header: &Header,
 	) -> Result<Self::Proposer, Error> {
 		let parent_hash = parent_header.hash();
 		let parent_id = BlockId::hash(parent_hash);
-		let sign_with = self.key.clone();
+
 		let tracker = self.parachain_validation.get_or_instantiate(
 			parent_hash,
 			parent_header.parent_hash().clone(),
-			sign_with,
+			&self.keystore,
 			self.max_block_data_size,
 		)?;
 
@@ -544,12 +552,13 @@ impl<C, N, P, SC, TxApi> consensus::Environment<Block> for ProposerFactory<C, N,
 			parent_id,
 			parent_number: parent_header.number,
 			transaction_pool: self.transaction_pool.clone(),
-			slot_duration: self.aura_slot_duration,
+			slot_duration: self.babe_slot_duration,
 		})
 	}
 }
 
 /// The local duty of a validator.
+#[derive(Debug)]
 pub struct LocalDuty {
 	validation: Chain,
 }
@@ -564,7 +573,7 @@ pub struct Proposer<C: Send + Sync, TxApi: PoolChainApi> where
 	parent_number: BlockNumber,
 	tracker: Arc<AttestationTracker>,
 	transaction_pool: Arc<Pool<TxApi>>,
-	slot_duration: SlotDuration,
+	slot_duration: u64,
 }
 
 impl<C, TxApi> consensus::Proposer<Block> for Proposer<C, TxApi> where
@@ -575,7 +584,7 @@ impl<C, TxApi> consensus::Proposer<Block> for Proposer<C, TxApi> where
 	type Error = Error;
 	type Create = Either<CreateProposal<C, TxApi>, future::Ready<Result<Block, Error>>>;
 
-	fn propose(&self,
+	fn propose(&mut self,
 		inherent_data: InherentData,
 		inherent_digests: DigestFor<Block>,
 		max_duration: Duration,
@@ -589,7 +598,7 @@ impl<C, TxApi> consensus::Proposer<Block> for Proposer<C, TxApi> where
 		let dynamic_inclusion = DynamicInclusion::new(
 			self.tracker.table.num_parachains(),
 			self.tracker.started,
-			Duration::from_secs(self.slot_duration.get() / SLOT_DURATION_DENOMINATOR),
+			Duration::from_millis(self.slot_duration / SLOT_DURATION_DENOMINATOR),
 		);
 
 		let enough_candidates = dynamic_inclusion.acceptable_in(
@@ -607,7 +616,7 @@ impl<C, TxApi> consensus::Proposer<Block> for Proposer<C, TxApi> where
 		let delay_future = if current_timestamp >= believed_timestamp {
 			None
 		} else {
-			Some(Delay::new(Duration::from_secs(current_timestamp - believed_timestamp)))
+			Some(Delay::new(Duration::from_millis (current_timestamp - believed_timestamp)))
 		};
 
 		let timing = ProposalTiming {
@@ -638,8 +647,7 @@ impl<C, TxApi> consensus::Proposer<Block> for Proposer<C, TxApi> where
 fn current_timestamp() -> u64 {
 	time::SystemTime::now().duration_since(time::UNIX_EPOCH)
 		.expect("now always later than unix epoch; qed")
-		.as_secs()
+		.as_millis() as u64
-		.into()
 }
 
 struct ProposalTiming {
@@ -811,17 +819,17 @@ impl<C, TxApi> futures03::Future for CreateProposal<C, TxApi> where
 #[cfg(test)]
 mod tests {
 	use super::*;
-	use substrate_keyring::Ed25519Keyring;
+	use substrate_keyring::Sr25519Keyring;
 
 	#[test]
 	fn sign_and_check_statement() {
 		let statement: Statement = GenericStatement::Valid([1; 32].into());
 		let parent_hash = [2; 32].into();
 
-		let sig = sign_table_statement(&statement, &Ed25519Keyring::Alice.pair(), &parent_hash);
+		let sig = sign_table_statement(&statement, &Sr25519Keyring::Alice.pair().into(), &parent_hash);
 
-		assert!(check_statement(&statement, &sig, Ed25519Keyring::Alice.into(), &parent_hash));
+		assert!(check_statement(&statement, &sig, Sr25519Keyring::Alice.public().into(), &parent_hash));
-		assert!(!check_statement(&statement, &sig, Ed25519Keyring::Alice.into(), &[0xff; 32].into()));
+		assert!(!check_statement(&statement, &sig, Sr25519Keyring::Alice.public().into(), &[0xff; 32].into()));
-		assert!(!check_statement(&statement, &sig, Ed25519Keyring::Bob.into(), &parent_hash));
+		assert!(!check_statement(&statement, &sig, Sr25519Keyring::Bob.public().into(), &parent_hash));
 	}
 }

polkadot/validation/src/shared_table/mod.rs

@@ -22,9 +22,10 @@ use std::sync::Arc;
 
 use extrinsic_store::{Data, Store as ExtrinsicStore};
 use table::{self, Table, Context as TableContextTrait};
-use polkadot_primitives::{Block, BlockId, Hash, SessionKey};
+use polkadot_primitives::{Block, BlockId, Hash};
-use polkadot_primitives::parachain::{Id as ParaId, Collation, Extrinsic, CandidateReceipt,
+use polkadot_primitives::parachain::{
-	AttestedCandidate, ParachainHost, PoVBlock, ValidatorIndex,
+	Id as ParaId, Collation, Extrinsic, CandidateReceipt, ValidatorPair, ValidatorId,
+	AttestedCandidate, ParachainHost, PoVBlock, ValidatorIndex
 };
 
 use parking_lot::Mutex;
@@ -34,7 +35,7 @@ use bitvec::bitvec;
 
 use super::{GroupInfo, TableRouter};
 use self::includable::IncludabilitySender;
-use primitives::{ed25519, Pair};
+use primitives::Pair;
 use runtime_primitives::traits::ProvideRuntimeApi;
 
 mod includable;
@@ -45,14 +46,14 @@ pub use table::generic::Statement as GenericStatement;
 
 struct TableContext {
 	parent_hash: Hash,
-	key: Arc<ed25519::Pair>,
+	key: Option<Arc<ValidatorPair>>,
 	groups: HashMap<ParaId, GroupInfo>,
-	index_mapping: HashMap<ValidatorIndex, SessionKey>,
+	validators: Vec<ValidatorId>,
 }
 
 impl table::Context for TableContext {
 	fn is_member_of(&self, authority: ValidatorIndex, group: &ParaId) -> bool {
-		let key = match self.index_mapping.get(&authority) {
+		let key = match self.validators.get(authority as usize) {
 			Some(val) => val,
 			None => return false,
 		};
@@ -66,28 +67,26 @@ impl table::Context for TableContext {
 }
 
 impl TableContext {
-	fn local_id(&self) -> SessionKey {
+	fn local_id(&self) -> Option<ValidatorId> {
-		self.key.public().into()
+		self.key.as_ref().map(|k| k.public())
 	}
 
-	fn local_index(&self) -> ValidatorIndex {
+	fn local_index(&self) -> Option<ValidatorIndex> {
-		let id = self.local_id();
+		self.local_id().and_then(|id|
-		self
+			self.validators
-			.index_mapping
+				.iter()
-			.iter()
+				.enumerate()
-			.find(|(_, k)| k == &&id)
+				.find(|(_, k)| k == &&id)
-			.map(|(i, _)| *i)
+				.map(|(i, _)| i as ValidatorIndex)
-			.unwrap()
+		)
 	}
 
-	fn sign_statement(&self, statement: table::Statement) -> table::SignedStatement {
+	fn sign_statement(&self, statement: table::Statement) -> Option<table::SignedStatement> {
-		let signature = crate::sign_table_statement(&statement, &self.key, &self.parent_hash).into();
+		self.local_index().and_then(move |sender|
-
+			self.key.as_ref()
-		table::SignedStatement {
+				.map(|key| crate::sign_table_statement(&statement, key, &self.parent_hash).into())
-			statement,
+				.map(move |signature| table::SignedStatement { statement, signature, sender })
-			signature,
+		)
-			sender: self.local_index(),
-		}
 	}
 }
 
@@ -142,15 +141,10 @@ impl SharedTableInner {
 	) -> Option<ParachainWork<
 		<R::FetchValidationProof as IntoFuture>::Future,
 	>> {
-		let summary = match self.table.import_statement(context, statement) {
+		let summary = self.table.import_statement(context, statement)?;
-			Some(summary) => summary,
-			None => return None,
-		};
-
 		self.update_trackers(&summary.candidate, context);
 
-		let local_index = context.local_index();
+		let local_index = context.local_index()?;
-
 		let para_member = context.is_member_of(local_index, &summary.group_id);
 
 		let digest = &summary.candidate;
@@ -399,16 +393,15 @@ impl SharedTable {
 	/// Provide the key to sign with, and the parent hash of the relay chain
 	/// block being built.
 	pub fn new(
-		authorities: &[ed25519::Public],
+		validators: Vec<ValidatorId>,
 		groups: HashMap<ParaId, GroupInfo>,
-		key: Arc<ed25519::Pair>,
+		key: Option<Arc<ValidatorPair>>,
 		parent_hash: Hash,
 		extrinsic_store: ExtrinsicStore,
 		max_block_data_size: Option<u64>,
 	) -> Self {
-		let index_mapping = authorities.iter().enumerate().map(|(i, k)| (i as ValidatorIndex, k.clone())).collect();
+		SharedTable {
-		Self {
+			context: Arc::new(TableContext { groups, key, parent_hash, validators: validators.clone(), }),
-			context: Arc::new(TableContext { groups, key, parent_hash, index_mapping, }),
 			max_block_data_size,
 			inner: Arc::new(Mutex::new(SharedTableInner {
 				table: Table::default(),
@@ -425,7 +418,7 @@ impl SharedTable {
 	}
 
 	/// Get the local validator session key.
-	pub fn session_key(&self) -> SessionKey {
+	pub fn session_key(&self) -> Option<ValidatorId> {
 		self.context.local_id()
 	}
 
@@ -482,9 +475,10 @@ impl SharedTable {
 		}).collect()
 	}
 
-	/// Sign and import the result of candidate validation.
+	/// Sign and import the result of candidate validation. Returns `None` if the table
+	/// was instantiated without a local key.
 	pub fn import_validated(&self, validated: Validated)
-		-> SignedStatement
+		-> Option<SignedStatement>
 	{
 		let digest = match validated.statement {
 			GenericStatement::Candidate(ref c) => c.hash(),
@@ -493,9 +487,11 @@ impl SharedTable {
 
 		let signed_statement = self.context.sign_statement(validated.statement);
 
-		let mut inner = self.inner.lock();
+		if let Some(ref signed) = signed_statement {
-		inner.table.import_statement(&*self.context, signed_statement.clone());
+			let mut inner = self.inner.lock();
-		inner.validated.insert(digest, ValidationWork::Done(validated.result));
+			inner.table.import_statement(&*self.context, signed.clone());
+			inner.validated.insert(digest, ValidationWork::Done(validated.result));
+		}
 
 		signed_statement
 	}
@@ -576,15 +572,15 @@ impl SharedTable {
 	}
 
 	/// Returns id of the validator corresponding to the given index.
-	pub fn index_to_id(&self, index: ValidatorIndex) -> Option<SessionKey> {
+	pub fn index_to_id(&self, index: ValidatorIndex) -> Option<ValidatorId> {
-		self.context.index_mapping.get(&index).cloned()
+		self.context.validators.get(index as usize).cloned()
 	}
 }
 
 #[cfg(test)]
 mod tests {
 	use super::*;
-	use substrate_keyring::Ed25519Keyring;
+	use substrate_keyring::Sr25519Keyring;
 	use primitives::crypto::UncheckedInto;
 	use polkadot_primitives::parachain::{BlockData, ConsolidatedIngress};
 	use futures::future;
@@ -617,11 +613,12 @@ mod tests {
 		let para_id = ParaId::from(1);
 		let parent_hash = Default::default();
 
-		let local_key = Arc::new(Ed25519Keyring::Alice.pair());
+		let local_key = Sr25519Keyring::Alice.pair();
-		let local_id = local_key.public();
+		let local_id: ValidatorId = local_key.public().into();
+		let local_key: Arc<ValidatorPair> = Arc::new(local_key.into());
 
-		let validity_other_key = Ed25519Keyring::Bob.pair();
+		let validity_other_key = Sr25519Keyring::Bob.pair();
-		let validity_other = validity_other_key.public();
+		let validity_other: ValidatorId = validity_other_key.public().into();
 		let validity_other_index = 1;
 
 		groups.insert(para_id, GroupInfo {
@@ -630,9 +627,9 @@ mod tests {
 		});
 
 		let shared_table = SharedTable::new(
-			&[local_id, validity_other],
+			[local_id, validity_other].to_vec(),
 			groups,
-			local_key.clone(),
+			Some(local_key.clone()),
 			parent_hash,
 			ExtrinsicStore::new_in_memory(),
 			None,
@@ -651,7 +648,7 @@ mod tests {
 
 		let candidate_statement = GenericStatement::Candidate(candidate);
 
-		let signature = crate::sign_table_statement(&candidate_statement, &validity_other_key, &parent_hash);
+		let signature = crate::sign_table_statement(&candidate_statement, &validity_other_key.into(), &parent_hash);
 		let signed_statement = ::table::generic::SignedStatement {
 			statement: candidate_statement,
 			signature: signature.into(),
@@ -671,11 +668,12 @@ mod tests {
 		let para_id = ParaId::from(1);
 		let parent_hash = Default::default();
 
-		let local_key = Arc::new(Ed25519Keyring::Alice.pair());
+		let local_key = Sr25519Keyring::Alice.pair();
-		let local_id = local_key.public();
+		let local_id: ValidatorId = local_key.public().into();
+		let local_key: Arc<ValidatorPair> = Arc::new(local_key.into());
 
-		let validity_other_key = Ed25519Keyring::Bob.pair();
+		let validity_other_key = Sr25519Keyring::Bob.pair();
-		let validity_other = validity_other_key.public();
+		let validity_other: ValidatorId = validity_other_key.public().into();
 		let validity_other_index = 1;
 
 		groups.insert(para_id, GroupInfo {
@@ -684,9 +682,9 @@ mod tests {
 		});
 
 		let shared_table = SharedTable::new(
-			&[local_id, validity_other],
+			[local_id, validity_other].to_vec(),
 			groups,
-			local_key.clone(),
+			Some(local_key.clone()),
 			parent_hash,
 			ExtrinsicStore::new_in_memory(),
 			None,
@@ -705,7 +703,7 @@ mod tests {
 
 		let candidate_statement = GenericStatement::Candidate(candidate);
 
-		let signature = crate::sign_table_statement(&candidate_statement, &validity_other_key, &parent_hash);
+		let signature = crate::sign_table_statement(&candidate_statement, &validity_other_key.into(), &parent_hash);
 		let signed_statement = ::table::generic::SignedStatement {
 			statement: candidate_statement,
 			signature: signature.into(),
@@ -806,11 +804,12 @@ mod tests {
 		let para_id = ParaId::from(1);
 		let parent_hash = Default::default();
 
-		let local_key = Arc::new(Ed25519Keyring::Alice.pair());
+		let local_key = Sr25519Keyring::Alice.pair();
-		let local_id = local_key.public();
+		let local_id: ValidatorId = local_key.public().into();
+		let local_key: Arc<ValidatorPair> = Arc::new(local_key.into());
 
-		let validity_other_key = Ed25519Keyring::Bob.pair();
+		let validity_other_key = Sr25519Keyring::Bob.pair();
-		let validity_other = validity_other_key.public();
+		let validity_other: ValidatorId = validity_other_key.public().into();
 		let validity_other_index = 1;
 
 		groups.insert(para_id, GroupInfo {
@@ -819,9 +818,9 @@ mod tests {
 		});
 
 		let shared_table = SharedTable::new(
-			&[local_id, validity_other],
+			[local_id, validity_other].to_vec(),
 			groups,
-			local_key.clone(),
+			Some(local_key.clone()),
 			parent_hash,
 			ExtrinsicStore::new_in_memory(),
 			None,
@@ -841,7 +840,7 @@ mod tests {
 		let hash = candidate.hash();
 		let candidate_statement = GenericStatement::Candidate(candidate);
 
-		let signature = crate::sign_table_statement(&candidate_statement, &validity_other_key, &parent_hash);
+		let signature = crate::sign_table_statement(&candidate_statement, &validity_other_key.into(), &parent_hash);
 		let signed_statement = ::table::generic::SignedStatement {
 			statement: candidate_statement,
 			signature: signature.into(),
@@ -872,11 +871,12 @@ mod tests {
 		let extrinsic = Extrinsic { outgoing_messages: Vec::new() };
 		let parent_hash = Default::default();
 
-		let local_key = Arc::new(Ed25519Keyring::Alice.pair());
+		let local_key = Sr25519Keyring::Alice.pair();
-		let local_id = local_key.public();
+		let local_id: ValidatorId = local_key.public().into();
+		let local_key: Arc<ValidatorPair> = Arc::new(local_key.into());
 
-		let validity_other_key = Ed25519Keyring::Bob.pair();
+		let validity_other_key = Sr25519Keyring::Bob.pair();
-		let validity_other = validity_other_key.public();
+		let validity_other: ValidatorId = validity_other_key.public().into();
 
 		groups.insert(para_id, GroupInfo {
 			validity_guarantors: [local_id.clone(), validity_other.clone()].iter().cloned().collect(),
@@ -884,9 +884,9 @@ mod tests {
 		});
 
 		let shared_table = SharedTable::new(
-			&[local_id, validity_other],
+			[local_id, validity_other].to_vec(),
 			groups,
-			local_key.clone(),
+			Some(local_key.clone()),
 			parent_hash,
 			ExtrinsicStore::new_in_memory(),
 			None,
@@ -908,7 +908,7 @@ mod tests {
 			candidate,
 			pov_block,
 			extrinsic,
-		));
+		)).unwrap();
 
 		assert!(shared_table.inner.lock().validated.get(&hash).expect("validation has started").is_done());
 
@@ -919,29 +919,4 @@ mod tests {
 
 		assert!(a.is_none());
 	}
-
-	#[test]
-	fn index_mapping_from_authorities() {
-		let authorities_set: &[&[_]] = &[
-			&[],
-			&[Ed25519Keyring::Alice.pair().public()],
-			&[Ed25519Keyring::Alice.pair().public(), Ed25519Keyring::Bob.pair().public()],
-			&[Ed25519Keyring::Bob.pair().public(), Ed25519Keyring::Alice.pair().public()],
-			&[Ed25519Keyring::Alice.pair().public(), Ed25519Keyring::Bob.pair().public(), Ed25519Keyring::Charlie.pair().public()],
-			&[Ed25519Keyring::Charlie.pair().public(), Ed25519Keyring::Bob.pair().public(), Ed25519Keyring::Alice.pair().public()],
-		];
-
-		for authorities in authorities_set {
-			let shared_table = SharedTable::new(
-				authorities,
-				HashMap::new(),
-				Arc::new(Ed25519Keyring::Alice.pair()),
-				Default::default(),
-				ExtrinsicStore::new_in_memory(),
-				None,
-			);
-			let expected_mapping = authorities.iter().enumerate().map(|(i, k)| (i as ValidatorIndex, k.clone())).collect();
-			assert_eq!(shared_table.context.index_mapping, expected_mapping);
-		}
-	}
 }