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add authority discovery module (#444)

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This commit is contained in:
André Silva
2019-09-24 14:31:27 +01:00
committed by Robert Habermeier
parent 4f4baa9b07
commit 821a59ca8d
6 changed files with 82 additions and 2 deletions
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polkadot/Cargo.lock
Generated
+22
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@@ -2790,6 +2790,7 @@ dependencies = [
"sr-staking-primitives 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"sr-std 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"sr-version 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-authority-discovery 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-authorship 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-babe 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-balances 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
@@ -2811,6 +2812,7 @@ dependencies = [
"srml-system 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-timestamp 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-treasury 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-authority-discovery-primitives 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-client 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-consensus-babe-primitives 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-inherents 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
@@ -2847,6 +2849,7 @@ dependencies = [
"srml-babe 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-im-online 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-staking 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-authority-discovery 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-client 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-client-db 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-consensus-babe 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
@@ -3746,6 +3749,24 @@ dependencies = [
"sr-std 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
]
[[package]]
name = "srml-authority-discovery"
version = "0.1.0"
source = "git+https://github.com/paritytech/substrate?branch=polkadot-master#7a7d641b40b9f9791406d04bd4fc7be2d190fa7b"
dependencies = [
"parity-scale-codec 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
"sr-io 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"sr-primitives 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"sr-std 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-im-online 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-session 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-support 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"srml-system 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-application-crypto 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
"substrate-primitives 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)",
]
[[package]]
name = "srml-authorship"
version = "0.1.0"
@@ -6122,6 +6143,7 @@ dependencies = [
"checksum sr-staking-primitives 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
"checksum sr-std 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
"checksum sr-version 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
"checksum srml-authority-discovery 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
"checksum srml-authorship 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
"checksum srml-babe 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
"checksum srml-balances 2.0.0 (git+https://github.com/paritytech/substrate?branch=polkadot-master)" = "<none>"
polkadot/runtime/Cargo.toml
+4
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@@ -14,6 +14,7 @@ safe-mix = { version = "1.0", default-features = false}
serde = { version = "1.0", default-features = false }
serde_derive = { version = "1.0", optional = true }
authority-discovery-primitives = { package = "substrate-authority-discovery-primitives", 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" }
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" }
@@ -27,6 +28,7 @@ substrate-serializer = { git = "https://github.com/paritytech/substrate", defaul
substrate-session = { 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" }
authority-discovery = { package = "srml-authority-discovery", 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" }
babe = { package = "srml-babe", 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" }
@@ -68,6 +70,8 @@ default = ["std"]
no_std = []
only-staking = []
std = [
"authority-discovery-primitives/std",
"authority-discovery/std",
"bitvec/std",
"primitives/std",
"rustc-hex/std",
polkadot/runtime/src/lib.rs
+35 -2
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@@ -55,7 +55,8 @@ use sr_staking_primitives::SessionIndex;
use srml_support::{
parameter_types, construct_runtime, traits::{SplitTwoWays, Currency}
};
use im_online::sr25519::{AuthorityId as ImOnlineId};
use authority_discovery_primitives::{AuthorityId as EncodedAuthorityId, Signature as EncodedSignature};
use im_online::sr25519::{AuthorityId as ImOnlineId, AuthoritySignature as ImOnlineSignature};
use system::offchain::TransactionSubmitter;
#[cfg(feature = "std")]
@@ -242,7 +243,7 @@ parameter_types! {
pub const Offset: BlockNumber = 0;
}
type SessionHandlers = (Grandpa, Babe, ImOnline, Parachains);
type SessionHandlers = (Grandpa, Babe, ImOnline, AuthorityDiscovery, Parachains);
impl_opaque_keys! {
pub struct SessionKeys {
#[id(key_types::GRANDPA)]
@@ -444,6 +445,8 @@ impl im_online::Trait for Runtime {
type ReportUnresponsiveness = ();
}
impl authority_discovery::Trait for Runtime {}
impl grandpa::Trait for Runtime {
type Event = Event;
}
@@ -530,6 +533,7 @@ construct_runtime!(
FinalityTracker: finality_tracker::{Module, Call, Inherent},
Grandpa: grandpa::{Module, Call, Storage, Config, Event},
ImOnline: im_online::{Module, Call, Storage, Event<T>, ValidateUnsigned, Config<T>},
AuthorityDiscovery: authority_discovery::{Module, Call, Config<T>},
// Governance stuff; uncallable initially.
Democracy: democracy::{Module, Call, Storage, Config, Event<T>},
@@ -684,6 +688,35 @@ impl_runtime_apis! {
}
}
impl authority_discovery_primitives::AuthorityDiscoveryApi<Block> for Runtime {
fn authorities() -> Vec<EncodedAuthorityId> {
AuthorityDiscovery::authorities().into_iter()
.map(|id| id.encode())
.map(EncodedAuthorityId)
.collect()
}
fn sign(payload: &Vec<u8>) -> Option<(EncodedSignature, EncodedAuthorityId)> {
AuthorityDiscovery::sign(payload).map(|(sig, id)| {
(EncodedSignature(sig.encode()), EncodedAuthorityId(id.encode()))
})
}
fn verify(payload: &Vec<u8>, signature: &EncodedSignature, authority_id: &EncodedAuthorityId) -> bool {
let signature = match ImOnlineSignature::decode(&mut &signature.0[..]) {
Ok(s) => s,
_ => return false,
};
let authority_id = match ImOnlineId::decode(&mut &authority_id.0[..]) {
Ok(id) => id,
_ => return false,
};
AuthorityDiscovery::verify(payload, signature, authority_id)
}
}
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"));
polkadot/service/Cargo.toml
+1
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@@ -36,5 +36,6 @@ substrate-keystore = { git = "https://github.com/paritytech/substrate", branch =
srml-babe = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
srml-staking = { 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" }
authority-discovery = { package = "substrate-authority-discovery", git = "https://github.com/paritytech/substrate", 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
+2
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@@ -148,6 +148,7 @@ fn staging_testnet_config_genesis() -> GenesisConfig {
babe: Some(Default::default()),
grandpa: Some(Default::default()),
im_online: Some(Default::default()),
authority_discovery: Some(Default::default()),
parachains: Some(ParachainsConfig {
authorities: vec![],
parachains: vec![],
@@ -285,6 +286,7 @@ pub fn testnet_genesis(
babe: Some(Default::default()),
grandpa: Some(Default::default()),
im_online: Some(Default::default()),
authority_discovery: Some(Default::default()),
parachains: Some(ParachainsConfig {
authorities: vec![],
parachains: vec![],
polkadot/service/src/lib.rs
+18
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@@ -19,6 +19,7 @@
pub mod chain_spec;
use futures::prelude::*;
use futures::sync::mpsc;
use client::LongestChain;
use std::sync::Arc;
use std::time::Duration;
@@ -138,6 +139,8 @@ pub fn new_full(config: Configuration<CustomConfiguration, GenesisConfig>)
CallExecutor = impl CallExecutor<Block, Blake2Hasher> + Clone + Send + Sync + 'static,
>, ServiceError>
{
use substrate_network::DhtEvent;
let is_authority = config.roles.is_authority();
let is_collator = config.custom.collating_for.is_some();
let force_authoring = config.force_authoring;
@@ -148,11 +151,19 @@ pub fn new_full(config: Configuration<CustomConfiguration, GenesisConfig>)
let (builder, mut import_setup, inherent_data_providers) = new_full_start!(config);
// Dht event channel from the network to the authority discovery module. Use
// bounded channel to ensure back-pressure. Authority discovery is triggering one
// event per authority within the current authority set. This estimates the
// authority set size to be somewhere below 10 000 thereby setting the channel
// buffer size to 10 000.
let (dht_event_tx, dht_event_rx) = mpsc::channel::<DhtEvent>(10000);
let service = builder
.with_network_protocol(|config| Ok(PolkadotProtocol::new(config.custom.collating_for.clone())))?
.with_finality_proof_provider(|client, backend|
Ok(Arc::new(GrandpaFinalityProofProvider::new(backend, client)) as _)
)?
.with_dht_event_tx(dht_event_tx)?
.build()?;
let (block_import, link_half, babe_link) = import_setup.take()
@@ -258,6 +269,13 @@ pub fn new_full(config: Configuration<CustomConfiguration, GenesisConfig>)
let babe = start_babe(babe_config)?;
let select = babe.select(service.on_exit()).then(|_| Ok(()));
service.spawn_essential_task(Box::new(select));
let authority_discovery = authority_discovery::AuthorityDiscovery::new(
service.client(),
service.network(),
dht_event_rx,
);
service.spawn_task(authority_discovery);
} else {
network_gossip::register_non_authority_validator(service.network());
}