707 lines
24 KiB
Rust
707 lines
24 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Tendermint BFT consensus engine with round robin proof-of-authority.
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mod message;
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mod transition;
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mod params;
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mod vote_collector;
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use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering};
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use util::*;
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use error::{Error, BlockError};
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use header::Header;
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use builtin::Builtin;
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use env_info::EnvInfo;
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use transaction::SignedTransaction;
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use rlp::{UntrustedRlp, View};
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use ethkey::{recover, public_to_address};
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use account_provider::AccountProvider;
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use block::*;
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use spec::CommonParams;
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use engines::{Engine, EngineError};
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use blockchain::extras::BlockDetails;
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use views::HeaderView;
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use evm::Schedule;
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use io::{IoService, IoChannel};
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use service::ClientIoMessage;
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use self::message::*;
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use self::transition::TransitionHandler;
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use self::params::TendermintParams;
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use self::vote_collector::VoteCollector;
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#[derive(Debug, PartialEq, Eq, Clone, Copy)]
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pub enum Step {
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Propose,
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Prevote,
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Precommit,
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Commit
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}
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pub type Height = usize;
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pub type Round = usize;
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pub type BlockHash = H256;
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type Signatures = Vec<Bytes>;
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/// Engine using `Tendermint` consensus algorithm, suitable for EVM chain.
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pub struct Tendermint {
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params: CommonParams,
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our_params: TendermintParams,
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builtins: BTreeMap<Address, Builtin>,
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step_service: IoService<Step>,
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/// Address to be used as authority.
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authority: RwLock<Address>,
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/// Blockchain height.
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height: AtomicUsize,
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/// Consensus round.
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round: AtomicUsize,
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/// Consensus step.
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step: RwLock<Step>,
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/// Used to swith proposer.
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proposer_nonce: AtomicUsize,
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/// Vote accumulator.
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votes: VoteCollector,
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/// Channel for updating the sealing.
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message_channel: Mutex<Option<IoChannel<ClientIoMessage>>>,
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/// Used to sign messages and proposals.
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account_provider: Mutex<Option<Arc<AccountProvider>>>,
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/// Message for the last PoLC.
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lock_change: RwLock<Option<ConsensusMessage>>,
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/// Last lock round.
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last_lock: AtomicUsize,
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/// Bare hash of the proposed block, used for seal submission.
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proposal: RwLock<Option<H256>>
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}
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impl Tendermint {
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/// Create a new instance of Tendermint engine
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pub fn new(params: CommonParams, our_params: TendermintParams, builtins: BTreeMap<Address, Builtin>) -> Result<Arc<Self>, Error> {
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let engine = Arc::new(
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Tendermint {
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params: params,
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our_params: our_params,
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builtins: builtins,
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step_service: try!(IoService::<Step>::start()),
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authority: RwLock::new(Address::default()),
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height: AtomicUsize::new(0),
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round: AtomicUsize::new(0),
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step: RwLock::new(Step::Propose),
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proposer_nonce: AtomicUsize::new(0),
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votes: VoteCollector::new(),
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message_channel: Mutex::new(None),
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account_provider: Mutex::new(None),
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lock_change: RwLock::new(None),
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last_lock: AtomicUsize::new(0),
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proposal: RwLock::new(None)
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});
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let handler = TransitionHandler { engine: Arc::downgrade(&engine) };
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try!(engine.step_service.register_handler(Arc::new(handler)));
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Ok(engine)
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}
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fn update_sealing(&self) {
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if let Some(ref channel) = *self.message_channel.lock() {
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match channel.send(ClientIoMessage::UpdateSealing) {
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Ok(_) => trace!(target: "poa", "timeout: UpdateSealing message sent."),
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Err(err) => warn!(target: "poa", "timeout: Could not send a sealing message {}.", err),
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}
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}
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}
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fn submit_seal(&self, block_hash: H256, seal: Vec<Bytes>) {
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if let Some(ref channel) = *self.message_channel.lock() {
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match channel.send(ClientIoMessage::SubmitSeal(block_hash, seal)) {
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Ok(_) => trace!(target: "poa", "timeout: SubmitSeal message sent."),
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Err(err) => warn!(target: "poa", "timeout: Could not send a sealing message {}.", err),
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}
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}
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}
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fn broadcast_message(&self, block_hash: Option<BlockHash>) {
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if let Some(message) = self.generate_message(block_hash) {
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if let Some(ref channel) = *self.message_channel.lock() {
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match channel.send(ClientIoMessage::BroadcastMessage(message)) {
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Ok(_) => trace!(target: "poa", "timeout: BroadcastMessage message sent."),
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Err(err) => warn!(target: "poa", "timeout: Could not send a sealing message {}.", err),
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}
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}
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} else {
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warn!(target: "poa", "broadcast_message: Message could not be generated.");
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}
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}
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fn generate_message(&self, block_hash: Option<BlockHash>) -> Option<Bytes> {
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if let Some(ref ap) = *self.account_provider.lock() {
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message_full_rlp(
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|mh| ap.sign(*self.authority.read(), None, mh).ok().map(H520::from),
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self.height.load(AtomicOrdering::SeqCst),
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self.round.load(AtomicOrdering::SeqCst),
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*self.step.read(),
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block_hash
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)
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} else {
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None
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}
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}
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fn to_step(&self, step: Step) {
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*self.step.write() = step;
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match step {
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Step::Propose => {
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*self.proposal.write() = None;
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self.update_sealing()
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},
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Step::Prevote => {
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let block_hash = match *self.lock_change.read() {
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Some(ref m) if self.should_unlock(m.round) => self.proposal.read().clone(),
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Some(ref m) => m.block_hash,
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None => None,
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};
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self.broadcast_message(block_hash)
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},
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Step::Precommit => {
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let block_hash = match *self.lock_change.read() {
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Some(ref m) if self.is_round(m) => {
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self.last_lock.store(m.round, AtomicOrdering::SeqCst);
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m.block_hash
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},
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_ => None,
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};
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self.broadcast_message(block_hash);
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},
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Step::Commit => {
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// Commit the block using a complete signature set.
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let round = self.round.load(AtomicOrdering::SeqCst);
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if let Some(seal) = self.votes.seal_signatures(self.height.load(AtomicOrdering::SeqCst), round, *self.proposal.read()) {
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let seal = vec![
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::rlp::encode(&round).to_vec(),
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::rlp::encode(&seal.proposal).to_vec(),
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::rlp::encode(&seal.votes).to_vec()
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];
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if let Some(block_hash) = *self.proposal.read() {
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self.submit_seal(block_hash, seal);
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}
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}
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*self.lock_change.write() = None;
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},
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}
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}
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fn is_authority(&self, address: &Address) -> bool {
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self.our_params.authorities.contains(address)
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}
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fn is_above_threshold(&self, n: usize) -> bool {
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n > self.our_params.authority_n * 2/3
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}
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/// Round proposer switching.
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fn is_proposer(&self, address: &Address) -> bool {
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let ref p = self.our_params;
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let proposer_nonce = self.proposer_nonce.load(AtomicOrdering::SeqCst);
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let proposer = p.authorities.get(proposer_nonce % p.authority_n).expect("There are authority_n authorities; taking number modulo authority_n gives number in authority_n range; qed");
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println!("{:?}", &proposer);
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println!("{:?}", &address);
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proposer == address
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}
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fn is_height(&self, message: &ConsensusMessage) -> bool {
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message.is_height(self.height.load(AtomicOrdering::SeqCst))
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}
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fn is_round(&self, message: &ConsensusMessage) -> bool {
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message.is_round(self.height.load(AtomicOrdering::SeqCst), self.round.load(AtomicOrdering::SeqCst))
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}
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fn increment_round(&self, n: Round) {
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self.proposer_nonce.fetch_add(n, AtomicOrdering::SeqCst);
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self.round.fetch_add(n, AtomicOrdering::SeqCst);
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}
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fn reset_round(&self) {
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self.last_lock.store(0, AtomicOrdering::SeqCst);
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self.proposer_nonce.fetch_add(1, AtomicOrdering::SeqCst);
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self.height.fetch_add(1, AtomicOrdering::SeqCst);
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self.round.store(0, AtomicOrdering::SeqCst);
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}
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fn should_unlock(&self, lock_change_round: Round) -> bool {
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self.last_lock.load(AtomicOrdering::SeqCst) < lock_change_round
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&& lock_change_round < self.round.load(AtomicOrdering::SeqCst)
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}
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fn has_enough_any_votes(&self) -> bool {
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let step_votes = self.votes.count_step_votes(self.height.load(AtomicOrdering::SeqCst), self.round.load(AtomicOrdering::SeqCst), *self.step.read());
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self.is_above_threshold(step_votes)
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}
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fn has_enough_future_step_votes(&self, message: &ConsensusMessage) -> bool {
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if message.round > self.round.load(AtomicOrdering::SeqCst) {
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let step_votes = self.votes.count_step_votes(message.height, message.round, message.step);
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self.is_above_threshold(step_votes)
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} else {
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false
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}
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}
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fn has_enough_aligned_votes(&self, message: &ConsensusMessage) -> bool {
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let aligned_votes = self.votes.aligned_votes(&message).len();
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self.is_above_threshold(aligned_votes)
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}
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}
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impl Engine for Tendermint {
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fn name(&self) -> &str { "Tendermint" }
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fn version(&self) -> SemanticVersion { SemanticVersion::new(1, 0, 0) }
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/// (consensus round, proposal signature, authority signatures)
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fn seal_fields(&self) -> usize { 3 }
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fn params(&self) -> &CommonParams { &self.params }
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fn builtins(&self) -> &BTreeMap<Address, Builtin> { &self.builtins }
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/// Additional engine-specific information for the user/developer concerning `header`.
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fn extra_info(&self, header: &Header) -> BTreeMap<String, String> {
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let message = ConsensusMessage::new_proposal(header).expect("Invalid header.");
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map![
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"signature".into() => message.signature.to_string(),
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"height".into() => message.height.to_string(),
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"round".into() => message.round.to_string(),
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"block_hash".into() => message.block_hash.as_ref().map(ToString::to_string).unwrap_or("".into())
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]
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}
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fn schedule(&self, _env_info: &EnvInfo) -> Schedule {
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Schedule::new_homestead()
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}
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fn populate_from_parent(&self, header: &mut Header, parent: &Header, gas_floor_target: U256, _gas_ceil_target: U256) {
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header.set_difficulty(parent.difficulty().clone());
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header.set_gas_limit({
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let gas_limit = parent.gas_limit().clone();
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let bound_divisor = self.our_params.gas_limit_bound_divisor;
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if gas_limit < gas_floor_target {
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min(gas_floor_target, gas_limit + gas_limit / bound_divisor - 1.into())
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} else {
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max(gas_floor_target, gas_limit - gas_limit / bound_divisor + 1.into())
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}
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});
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}
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/// Get the address to be used as authority.
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fn on_new_block(&self, block: &mut ExecutedBlock) {
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*self.authority.write() = *block.header().author()
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}
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/// Round proposer switching.
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fn is_sealer(&self, address: &Address) -> Option<bool> {
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Some(self.is_proposer(address))
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}
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/// Attempt to seal the block internally using all available signatures.
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fn generate_seal(&self, block: &ExecutedBlock) -> Option<Vec<Bytes>> {
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if let Some(ref ap) = *self.account_provider.lock() {
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let header = block.header();
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let author = header.author();
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let vote_info = message_info_rlp(header.number() as Height, self.round.load(AtomicOrdering::SeqCst), Step::Propose, Some(header.bare_hash()));
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if let Ok(signature) = ap.sign(*author, None, vote_info.sha3()) {
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*self.proposal.write() = Some(header.bare_hash());
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Some(vec![
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::rlp::encode(&self.round.load(AtomicOrdering::SeqCst)).to_vec(),
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::rlp::encode(&H520::from(signature)).to_vec(),
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Vec::new()
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])
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} else {
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warn!(target: "poa", "generate_seal: FAIL: accounts secret key unavailable");
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None
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}
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} else {
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warn!(target: "poa", "generate_seal: FAIL: accounts not provided");
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None
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}
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}
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fn handle_message(&self, rlp: UntrustedRlp) -> Result<(), Error> {
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let message: ConsensusMessage = try!(rlp.as_val());
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let sender = public_to_address(&try!(recover(&message.signature.into(), &try!(rlp.at(1)).as_raw().sha3())));
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// TODO: Do not admit old messages.
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if !self.is_authority(&sender) {
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try!(Err(BlockError::InvalidSeal));
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}
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// Check if the message is known.
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if self.votes.vote(message.clone(), sender).is_none() {
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let is_newer_than_lock = match *self.lock_change.read() {
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Some(ref lock) => &message > lock,
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None => true,
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};
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if is_newer_than_lock
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&& message.step == Step::Prevote
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&& self.has_enough_aligned_votes(&message) {
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*self.lock_change.write() = Some(message.clone());
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}
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// Check if it can affect the step transition.
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if self.is_height(&message) {
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let next_step = match *self.step.read() {
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Step::Precommit if self.has_enough_aligned_votes(&message) => {
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if message.block_hash.is_none() {
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self.increment_round(1);
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Some(Step::Propose)
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} else {
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Some(Step::Commit)
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}
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},
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Step::Precommit if self.has_enough_future_step_votes(&message) => {
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self.increment_round(message.round - self.round.load(AtomicOrdering::SeqCst));
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Some(Step::Precommit)
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},
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Step::Prevote if self.has_enough_aligned_votes(&message) => Some(Step::Precommit),
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Step::Prevote if self.has_enough_future_step_votes(&message) => {
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self.increment_round(message.round - self.round.load(AtomicOrdering::SeqCst));
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Some(Step::Prevote)
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},
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_ => None,
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};
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if let Some(step) = next_step {
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if let Err(io_err) = self.step_service.send_message(step) {
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warn!(target: "poa", "Could not proceed to next step {}.", io_err)
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}
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}
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}
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}
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Ok(())
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}
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fn verify_block_basic(&self, header: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
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let seal_length = header.seal().len();
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if seal_length == self.seal_fields() {
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Ok(())
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} else {
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Err(From::from(BlockError::InvalidSealArity(
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Mismatch { expected: self.seal_fields(), found: seal_length }
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)))
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}
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}
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/// Also transitions to Prevote if verifying Proposal.
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fn verify_block_unordered(&self, header: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
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let proposal = try!(ConsensusMessage::new_proposal(header));
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let proposer = try!(proposal.verify());
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if !self.is_proposer(&proposer) {
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try!(Err(BlockError::InvalidSeal))
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}
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self.votes.vote(proposal, proposer);
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let block_info_hash = try!(message_info_rlp_from_header(header)).sha3();
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for rlp in UntrustedRlp::new(&header.seal()[2]).iter() {
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let signature: H520 = try!(rlp.as_val());
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let address = public_to_address(&try!(recover(&signature.into(), &block_info_hash)));
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if !self.our_params.authorities.contains(&address) {
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try!(Err(BlockError::InvalidSeal))
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}
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}
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Ok(())
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}
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fn verify_block_family(&self, header: &Header, parent: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
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// we should not calculate difficulty for genesis blocks
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if header.number() == 0 {
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return Err(From::from(BlockError::RidiculousNumber(OutOfBounds { min: Some(1), max: None, found: header.number() })));
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}
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// Check difficulty is correct given the two timestamps.
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if header.difficulty() != parent.difficulty() {
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return Err(From::from(BlockError::InvalidDifficulty(Mismatch { expected: *parent.difficulty(), found: *header.difficulty() })))
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}
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let gas_limit_divisor = self.our_params.gas_limit_bound_divisor;
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let min_gas = parent.gas_limit().clone() - parent.gas_limit().clone() / gas_limit_divisor;
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let max_gas = parent.gas_limit().clone() + parent.gas_limit().clone() / gas_limit_divisor;
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if header.gas_limit() <= &min_gas || header.gas_limit() >= &max_gas {
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return Err(From::from(BlockError::InvalidGasLimit(OutOfBounds { min: Some(min_gas), max: Some(max_gas), found: header.gas_limit().clone() })));
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}
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Ok(())
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}
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fn verify_transaction_basic(&self, t: &SignedTransaction, _header: &Header) -> Result<(), Error> {
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try!(t.check_low_s());
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Ok(())
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}
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fn verify_transaction(&self, t: &SignedTransaction, _header: &Header) -> Result<(), Error> {
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t.sender().map(|_|()) // Perform EC recovery and cache sender
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}
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fn is_new_best_block(&self, _best_total_difficulty: U256, best_header: HeaderView, _parent_details: &BlockDetails, new_header: &HeaderView) -> bool {
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let new_signatures = new_header.seal().get(2).expect("Tendermint seal should have three elements.").len();
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let best_signatures = best_header.seal().get(2).expect("Tendermint seal should have three elements.").len();
|
|
new_signatures > best_signatures
|
|
}
|
|
|
|
fn register_message_channel(&self, message_channel: IoChannel<ClientIoMessage>) {
|
|
*self.message_channel.lock() = Some(message_channel);
|
|
}
|
|
|
|
fn register_account_provider(&self, account_provider: Arc<AccountProvider>) {
|
|
*self.account_provider.lock() = Some(account_provider);
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use util::*;
|
|
use rlp::{UntrustedRlp, RlpStream, Stream, View};
|
|
use block::*;
|
|
use state_db::StateDB;
|
|
use error::{Error, BlockError};
|
|
use header::Header;
|
|
use env_info::EnvInfo;
|
|
use tests::helpers::*;
|
|
use account_provider::AccountProvider;
|
|
use spec::Spec;
|
|
use engines::{Engine, EngineError};
|
|
use super::*;
|
|
use super::params::TendermintParams;
|
|
use super::message::*;
|
|
|
|
fn setup() -> (Spec, Arc<AccountProvider>) {
|
|
let tap = Arc::new(AccountProvider::transient_provider());
|
|
let spec = Spec::new_test_tendermint();
|
|
spec.engine.register_account_provider(tap.clone());
|
|
(spec, tap)
|
|
}
|
|
|
|
fn propose_default(engine: &Arc<Engine>, db: &StateDB, proposer: Address) -> Option<Vec<Bytes>> {
|
|
let mut header = Header::default();
|
|
let last_hashes = Arc::new(vec![]);
|
|
let b = OpenBlock::new(engine.as_ref(), Default::default(), false, db.boxed_clone(), &header, last_hashes, proposer, (3141562.into(), 31415620.into()), vec![]).unwrap();
|
|
let b = b.close_and_lock();
|
|
engine.generate_seal(b.block())
|
|
}
|
|
|
|
fn vote_default<F>(engine: &Arc<Engine>, signer: F, height: usize, round: usize, step: Step) where F: FnOnce(H256) -> Option<H520> {
|
|
let m = message_full_rlp(signer, height, round, step, Some(Default::default())).unwrap();
|
|
engine.handle_message(UntrustedRlp::new(&m)).unwrap();
|
|
}
|
|
|
|
fn proposal_seal(tap: &Arc<AccountProvider>, header: &Header, round: Round) -> Vec<Bytes> {
|
|
let author = header.author();
|
|
let vote_info = message_info_rlp(header.number() as Height, round, Step::Propose, Some(header.bare_hash()));
|
|
let signature = tap.sign(*author, None, vote_info.sha3()).unwrap();
|
|
vec![
|
|
::rlp::encode(&round).to_vec(),
|
|
::rlp::encode(&H520::from(signature)).to_vec(),
|
|
Vec::new()
|
|
]
|
|
}
|
|
|
|
fn insert_and_unlock(tap: &Arc<AccountProvider>, acc: &str) -> Address {
|
|
let addr = tap.insert_account(acc.sha3(), acc).unwrap();
|
|
tap.unlock_account_permanently(addr, acc.into()).unwrap();
|
|
addr
|
|
}
|
|
|
|
fn default_seal() -> Vec<Bytes> {
|
|
vec![vec![160, 39, 191, 179, 126, 80, 124, 233, 13, 161, 65, 48, 114, 4, 177, 198, 186, 36, 25, 67, 128, 97, 53, 144, 172, 80, 202, 75, 29, 113, 152, 255, 101]]
|
|
}
|
|
|
|
#[test]
|
|
fn has_valid_metadata() {
|
|
let engine = Spec::new_test_tendermint().engine;
|
|
assert!(!engine.name().is_empty());
|
|
assert!(engine.version().major >= 1);
|
|
}
|
|
|
|
#[test]
|
|
fn can_return_schedule() {
|
|
let engine = Spec::new_test_tendermint().engine;
|
|
let schedule = engine.schedule(&EnvInfo {
|
|
number: 10000000,
|
|
author: 0.into(),
|
|
timestamp: 0,
|
|
difficulty: 0.into(),
|
|
last_hashes: Arc::new(vec![]),
|
|
gas_used: 0.into(),
|
|
gas_limit: 0.into(),
|
|
});
|
|
|
|
assert!(schedule.stack_limit > 0);
|
|
}
|
|
|
|
#[test]
|
|
fn verification_fails_on_short_seal() {
|
|
let engine = Spec::new_test_tendermint().engine;
|
|
let header: Header = Header::default();
|
|
|
|
let verify_result = engine.verify_block_basic(&header, None);
|
|
|
|
match verify_result {
|
|
Err(Error::Block(BlockError::InvalidSealArity(_))) => {},
|
|
Err(_) => { panic!("should be block seal-arity mismatch error (got {:?})", verify_result); },
|
|
_ => { panic!("Should be error, got Ok"); },
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn allows_correct_proposer() {
|
|
::env_logger::init().unwrap();
|
|
let (spec, tap) = setup();
|
|
let engine = spec.engine;
|
|
|
|
let mut header = Header::default();
|
|
let validator = insert_and_unlock(&tap, "0");
|
|
header.set_author(validator);
|
|
let seal = proposal_seal(&tap, &header, 0);
|
|
header.set_seal(seal);
|
|
// Good proposer.
|
|
assert!(engine.verify_block_unordered(&header, None).is_ok());
|
|
|
|
let mut header = Header::default();
|
|
let random = insert_and_unlock(&tap, "101");
|
|
header.set_author(random);
|
|
let seal = proposal_seal(&tap, &header, 0);
|
|
header.set_seal(seal);
|
|
// Bad proposer.
|
|
assert!(engine.verify_block_unordered(&header, None).is_err());
|
|
}
|
|
|
|
#[test]
|
|
fn verification_fails_on_wrong_signatures() {
|
|
let (spec, tap) = setup();
|
|
let engine = spec.engine;
|
|
let mut header = Header::default();
|
|
|
|
|
|
let v1 = tap.insert_account("0".sha3(), "0").unwrap();
|
|
|
|
header.set_author(v1);
|
|
let mut seal = proposal_seal(&tap, &header, 0);
|
|
|
|
header.set_seal(seal.clone());
|
|
|
|
// Not enough signatures.
|
|
assert!(engine.verify_block_unordered(&header, None).is_err());
|
|
|
|
let v2 = tap.insert_account("101".sha3(), "101").unwrap();
|
|
let sig2 = tap.sign(v2, Some("101".into()), header.bare_hash()).unwrap();
|
|
seal.push(::rlp::encode(&(&*sig2 as &[u8])).to_vec());
|
|
|
|
header.set_seal(seal);
|
|
|
|
// Enough signatures.
|
|
assert!(engine.verify_block_unordered(&header, None).is_ok());
|
|
|
|
let verify_result = engine.verify_block_unordered(&header, None);
|
|
|
|
// But wrong signatures.
|
|
match verify_result {
|
|
Err(Error::Block(BlockError::InvalidSeal)) => (),
|
|
Err(_) => panic!("should be block seal-arity mismatch error (got {:?})", verify_result),
|
|
_ => panic!("Should be error, got Ok"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn seal_with_enough_signatures_is_ok() {
|
|
let (spec, tap) = setup();
|
|
let engine = spec.engine;
|
|
let mut header = Header::default();
|
|
|
|
let seal = proposal_seal(&tap, &header, 0);
|
|
header.set_seal(seal);
|
|
|
|
// Enough signatures.
|
|
assert!(engine.verify_block_basic(&header, None).is_ok());
|
|
|
|
// And they are ok.
|
|
assert!(engine.verify_block_unordered(&header, None).is_ok());
|
|
}
|
|
|
|
#[test]
|
|
fn can_generate_seal() {
|
|
let (spec, _) = setup();
|
|
|
|
let genesis_header = spec.genesis_header();
|
|
let mut db_result = get_temp_state_db();
|
|
let mut db = db_result.take();
|
|
spec.ensure_db_good(&mut db).unwrap();
|
|
let last_hashes = Arc::new(vec![genesis_header.hash()]);
|
|
let b = OpenBlock::new(spec.engine.as_ref(), Default::default(), false, db, &genesis_header, last_hashes, Address::default(), (3141562.into(), 31415620.into()), vec![]).unwrap();
|
|
let b = b.close_and_lock();
|
|
|
|
let seal = spec.engine.generate_seal(b.block()).unwrap();
|
|
assert!(b.try_seal(spec.engine.as_ref(), seal).is_ok());
|
|
}
|
|
|
|
#[test]
|
|
fn propose_step() {
|
|
let spec = Spec::new_test_tendermint();
|
|
let engine = spec.engine.clone();
|
|
let tap = AccountProvider::transient_provider();
|
|
let mut db_result = get_temp_state_db();
|
|
let mut db = db_result.take();
|
|
spec.ensure_db_good(&mut db).unwrap();
|
|
|
|
let not_authority_addr = tap.insert_account("101".sha3(), "101").unwrap();
|
|
assert!(propose_default(&engine, &db, not_authority_addr).is_none());
|
|
|
|
let not_proposer_addr = tap.insert_account("0".sha3(), "0").unwrap();
|
|
assert!(propose_default(&engine, &db, not_proposer_addr).is_none());
|
|
|
|
let proposer_addr = tap.insert_account("1".sha3(), "1").unwrap();
|
|
assert_eq!(default_seal(), propose_default(&engine, &db, proposer_addr).unwrap());
|
|
|
|
assert!(propose_default(&engine, &db, proposer_addr).is_none());
|
|
assert!(propose_default(&engine, &db, not_proposer_addr).is_none());
|
|
}
|
|
|
|
#[test]
|
|
fn prevote_step() {
|
|
let spec = Spec::new_test_tendermint();
|
|
let engine = Spec::new_test_tendermint().engine;
|
|
let tap = AccountProvider::transient_provider();
|
|
let mut db_result = get_temp_state_db();
|
|
let mut db = db_result.take();
|
|
spec.ensure_db_good(&mut db).unwrap();
|
|
|
|
let v0 = tap.insert_account("0".sha3(), "0").unwrap();
|
|
let v1 = tap.insert_account("1".sha3(), "1").unwrap();
|
|
|
|
// Propose
|
|
assert!(propose_default(&engine, &db, v1.clone()).is_some());
|
|
|
|
let h = 0;
|
|
let r = 0;
|
|
|
|
// Prevote.
|
|
vote_default(&engine, |mh| tap.sign(v1, None, mh).ok().map(H520::from), h, r, Step::Prevote);
|
|
|
|
vote_default(&engine, |mh| tap.sign(v0, None, mh).ok().map(H520::from), h, r, Step::Prevote);
|
|
vote_default(&engine, |mh| tap.sign(v1, None, mh).ok().map(H520::from), h, r, Step::Prevote);
|
|
}
|
|
|
|
#[test]
|
|
fn timeout_switching() {
|
|
let tender = {
|
|
let engine = Spec::new_test_tendermint().engine;
|
|
Tendermint::new(engine.params().clone(), TendermintParams::default(), BTreeMap::new())
|
|
};
|
|
|
|
println!("Waiting for timeout");
|
|
}
|
|
}
|