cerc-io/lighthouse
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Merge branch 'master' into update-readme

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Paul Hauner 2019-07-04 15:29:26 +10:00 committed by GitHub
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1
README.md
View File

@ -154,7 +154,6 @@ If you'd like some background on Sigma Prime, please see the [Lighthouse Update
- [`validator_client/`](validator_client/): the "Validator Client" binary and crates exclusively
associated with it.
## Contributing
**Lighthouse welcomes contributors.**

1
account_manager/Cargo.toml
View File

@ -13,3 +13,4 @@ slog-async = "^2.3.0"
validator_client = { path = "../validator_client" }
types = { path = "../eth2/types" }
eth2_config = { path = "../eth2/utils/eth2_config" }
dirs = "2.0.1"

34
account_manager/src/main.rs
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@ -1,12 +1,12 @@
use bls::Keypair;
use clap::{App, Arg, SubCommand};
use eth2_config::get_data_dir;
use slog::{crit, debug, info, o, Drain};
use std::fs;
use std::path::PathBuf;
use types::test_utils::generate_deterministic_keypair;
use validator_client::Config as ValidatorClientConfig;
pub const DEFAULT_DATA_DIR: &str = ".lighthouse-account-manager";
pub const DEFAULT_DATA_DIR: &str = ".lighthouse-validator";
pub const CLIENT_CONFIG_FILENAME: &str = "account-manager.toml";
fn main() {
@ -61,14 +61,34 @@ fn main() {
)
.get_matches();
let data_dir = match get_data_dir(&matches, PathBuf::from(DEFAULT_DATA_DIR)) {
Ok(dir) => dir,
Err(e) => {
crit!(log, "Failed to initialize data dir"; "error" => format!("{:?}", e));
return;
let data_dir = match matches
.value_of("datadir")
.and_then(|v| Some(PathBuf::from(v)))
{
Some(v) => v,
None => {
// use the default
let mut default_dir = match dirs::home_dir() {
Some(v) => v,
None => {
crit!(log, "Failed to find a home directory");
return;
}
};
default_dir.push(DEFAULT_DATA_DIR);
PathBuf::from(default_dir)
}
};
// create the directory if needed
match fs::create_dir_all(&data_dir) {
Ok(_) => {}
Err(e) => {
crit!(log, "Failed to initialize data dir"; "error" => format!("{}", e));
return;
}
}
let mut client_config = ValidatorClientConfig::default();
if let Err(e) = client_config.apply_cli_args(&matches) {

2
beacon_node/Cargo.toml
View File

@ -22,3 +22,5 @@ tokio-timer = "0.2.10"
futures = "0.1.25"
exit-future = "0.1.3"
state_processing = { path = "../eth2/state_processing" }
env_logger = "0.6.1"
dirs = "2.0.1"

7
beacon_node/beacon_chain/Cargo.toml
View File

@ -20,9 +20,12 @@ serde = "1.0"
serde_derive = "1.0"
serde_json = "1.0"
slot_clock = { path = "../../eth2/utils/slot_clock" }
ssz = { path = "../../eth2/utils/ssz" }
ssz_derive = { path = "../../eth2/utils/ssz_derive" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz_derive = { path = "../../eth2/utils/ssz_derive" }
state_processing = { path = "../../eth2/state_processing" }
tree_hash = { path = "../../eth2/utils/tree_hash" }
types = { path = "../../eth2/types" }
lmd_ghost = { path = "../../eth2/lmd_ghost" }
[dev-dependencies]
rand = "0.5.5"

10
beacon_node/beacon_chain/src/beacon_chain.rs
View File

@ -6,7 +6,7 @@ use crate::persisted_beacon_chain::{PersistedBeaconChain, BEACON_CHAIN_DB_KEY};
use lmd_ghost::LmdGhost;
use log::trace;
use operation_pool::DepositInsertStatus;
use operation_pool::OperationPool;
use operation_pool::{OperationPool, PersistedOperationPool};
use parking_lot::{RwLock, RwLockReadGuard};
use slot_clock::SlotClock;
use state_processing::per_block_processing::errors::{
@ -147,11 +147,13 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
let last_finalized_root = p.canonical_head.beacon_state.finalized_root;
let last_finalized_block = &p.canonical_head.beacon_block;
let op_pool = p.op_pool.into_operation_pool(&p.state, &spec);
Ok(Some(BeaconChain {
spec,
slot_clock,
fork_choice: ForkChoice::new(store.clone(), last_finalized_block, last_finalized_root),
op_pool: OperationPool::default(),
op_pool,
canonical_head: RwLock::new(p.canonical_head),
state: RwLock::new(p.state),
genesis_block_root: p.genesis_block_root,
@ -164,6 +166,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
pub fn persist(&self) -> Result<(), Error> {
let p: PersistedBeaconChain<T> = PersistedBeaconChain {
canonical_head: self.canonical_head.read().clone(),
op_pool: PersistedOperationPool::from_operation_pool(&self.op_pool),
genesis_block_root: self.genesis_block_root,
state: self.state.read().clone(),
};
@ -506,8 +509,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
&self,
deposit: Deposit,
) -> Result<DepositInsertStatus, DepositValidationError> {
self.op_pool
.insert_deposit(deposit, &*self.state.read(), &self.spec)
self.op_pool.insert_deposit(deposit)
}
/// Accept some exit and queue it for inclusion in an appropriate block.

3
beacon_node/beacon_chain/src/persisted_beacon_chain.rs
View File

@ -1,4 +1,5 @@
use crate::{BeaconChainTypes, CheckPoint};
use operation_pool::PersistedOperationPool;
use ssz::{Decode, Encode};
use ssz_derive::{Decode, Encode};
use store::{DBColumn, Error as StoreError, StoreItem};
@ -10,7 +11,7 @@ pub const BEACON_CHAIN_DB_KEY: &str = "PERSISTEDBEACONCHAINPERSISTEDBEA";
#[derive(Encode, Decode)]
pub struct PersistedBeaconChain<T: BeaconChainTypes> {
pub canonical_head: CheckPoint<T::EthSpec>,
// TODO: operations pool.
pub op_pool: PersistedOperationPool,
pub genesis_block_root: Hash256,
pub state: BeaconState<T::EthSpec>,
}

6
beacon_node/beacon_chain/src/test_utils.rs
View File

@ -14,6 +14,8 @@ use types::{
Hash256, Keypair, RelativeEpoch, SecretKey, Signature, Slot,
};
pub use crate::persisted_beacon_chain::{PersistedBeaconChain, BEACON_CHAIN_DB_KEY};
/// Indicates how the `BeaconChainHarness` should produce blocks.
#[derive(Clone, Copy, Debug)]
pub enum BlockStrategy {
@ -68,8 +70,8 @@ where
E: EthSpec,
{
pub chain: BeaconChain<CommonTypes<L, E>>,
keypairs: Vec<Keypair>,
spec: ChainSpec,
pub keypairs: Vec<Keypair>,
pub spec: ChainSpec,
}
impl<L, E> BeaconChainHarness<L, E>

52
beacon_node/beacon_chain/tests/tests.rs
View File

@ -1,16 +1,21 @@
#![cfg(not(debug_assertions))]
use beacon_chain::test_utils::{AttestationStrategy, BeaconChainHarness, BlockStrategy};
use beacon_chain::test_utils::{
AttestationStrategy, BeaconChainHarness, BlockStrategy, CommonTypes, PersistedBeaconChain,
BEACON_CHAIN_DB_KEY,
};
use lmd_ghost::ThreadSafeReducedTree;
use store::MemoryStore;
use types::{EthSpec, MinimalEthSpec, Slot};
use rand::Rng;
use store::{MemoryStore, Store};
use types::test_utils::{SeedableRng, TestRandom, XorShiftRng};
use types::{Deposit, EthSpec, Hash256, MinimalEthSpec, Slot};
// Should ideally be divisible by 3.
pub const VALIDATOR_COUNT: usize = 24;
fn get_harness(
validator_count: usize,
) -> BeaconChainHarness<ThreadSafeReducedTree<MemoryStore, MinimalEthSpec>, MinimalEthSpec> {
type TestForkChoice = ThreadSafeReducedTree<MemoryStore, MinimalEthSpec>;
fn get_harness(validator_count: usize) -> BeaconChainHarness<TestForkChoice, MinimalEthSpec> {
let harness = BeaconChainHarness::new(validator_count);
// Move past the zero slot.
@ -225,3 +230,38 @@ fn does_not_finalize_without_attestation() {
"no epoch should have been finalized"
);
}
#[test]
fn roundtrip_operation_pool() {
let num_blocks_produced = MinimalEthSpec::slots_per_epoch() * 5;
let harness = get_harness(VALIDATOR_COUNT);
// Add some attestations
harness.extend_chain(
num_blocks_produced as usize,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
);
assert!(harness.chain.op_pool.num_attestations() > 0);
// Add some deposits
let rng = &mut XorShiftRng::from_seed([66; 16]);
for _ in 0..rng.gen_range(1, VALIDATOR_COUNT) {
harness
.chain
.process_deposit(Deposit::random_for_test(rng))
.unwrap();
}
// TODO: could add some other operations
harness.chain.persist().unwrap();
let key = Hash256::from_slice(&BEACON_CHAIN_DB_KEY.as_bytes());
let p: PersistedBeaconChain<CommonTypes<TestForkChoice, MinimalEthSpec>> =
harness.chain.store.get(&key).unwrap().unwrap();
let restored_op_pool = p.op_pool.into_operation_pool(&p.state, &harness.spec);
assert_eq!(harness.chain.op_pool, restored_op_pool);
}

9
beacon_node/client/Cargo.toml
View File

@ -9,17 +9,20 @@ beacon_chain = { path = "../beacon_chain" }
network = { path = "../network" }
store = { path = "../store" }
http_server = { path = "../http_server" }
eth2-libp2p = { path = "../eth2-libp2p" }
rpc = { path = "../rpc" }
prometheus = "^0.6"
types = { path = "../../eth2/types" }
tree_hash = { path = "../../eth2/utils/tree_hash" }
eth2_config = { path = "../../eth2/utils/eth2_config" }
slot_clock = { path = "../../eth2/utils/slot_clock" }
serde = "1.0"
serde = "1.0.93"
serde_derive = "1.0"
error-chain = "0.12.0"
slog = "^2.2.3"
ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
slog = { version = "^2.2.3" , features = ["max_level_trace", "release_max_level_debug"] }
slog-term = "^2.4.0"
slog-async = "^2.3.0"
tokio = "0.1.15"
clap = "2.32.0"
dirs = "1.0.3"

10
beacon_node/client/src/client_config.rs → beacon_node/client/src/config.rs
View File

@ -7,7 +7,7 @@ use std::path::PathBuf;
/// The core configuration of a Lighthouse beacon node.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ClientConfig {
pub struct Config {
pub data_dir: PathBuf,
pub db_type: String,
db_name: String,
@ -16,7 +16,7 @@ pub struct ClientConfig {
pub http: HttpServerConfig,
}
impl Default for ClientConfig {
impl Default for Config {
fn default() -> Self {
Self {
data_dir: PathBuf::from(".lighthouse"),
@ -24,14 +24,14 @@ impl Default for ClientConfig {
db_name: "chain_db".to_string(),
// Note: there are no default bootnodes specified.
// Once bootnodes are established, add them here.
network: NetworkConfig::new(vec![]),
network: NetworkConfig::new(),
rpc: rpc::RPCConfig::default(),
http: HttpServerConfig::default(),
}
}
}
impl ClientConfig {
impl Config {
/// Returns the path to which the client may initialize an on-disk database.
pub fn db_path(&self) -> Option<PathBuf> {
self.data_dir()
@ -49,7 +49,7 @@ impl ClientConfig {
///
/// Returns an error if arguments are obviously invalid. May succeed even if some values are
/// invalid.
pub fn apply_cli_args(&mut self, args: &ArgMatches) -> Result<(), &'static str> {
pub fn apply_cli_args(&mut self, args: &ArgMatches) -> Result<(), String> {
if let Some(dir) = args.value_of("datadir") {
self.data_dir = PathBuf::from(dir);
};

4
beacon_node/client/src/lib.rs
View File

@ -1,7 +1,7 @@
extern crate slog;
mod beacon_chain_types;
mod client_config;
mod config;
pub mod error;
pub mod notifier;
@ -21,7 +21,7 @@ use tokio::timer::Interval;
pub use beacon_chain::BeaconChainTypes;
pub use beacon_chain_types::ClientType;
pub use beacon_chain_types::InitialiseBeaconChain;
pub use client_config::ClientConfig;
pub use config::Config as ClientConfig;
pub use eth2_config::Eth2Config;
/// Main beacon node client service. This provides the connection and initialisation of the clients

13
beacon_node/eth2-libp2p/Cargo.toml
View File

@ -7,15 +7,18 @@ edition = "2018"
[dependencies]
beacon_chain = { path = "../beacon_chain" }
clap = "2.32.0"
# SigP repository until PR is merged
libp2p = { git = "https://github.com/SigP/rust-libp2p", rev = "b3c32d9a821ae6cc89079499cc6e8a6bab0bffc3" }
#SigP repository
libp2p = { git = "https://github.com/SigP/rust-libp2p", rev = "be5710bbde69d8c5be732c13ba64239e2f370a7b" }
enr = { git = "https://github.com/SigP/rust-libp2p/", rev = "be5710bbde69d8c5be732c13ba64239e2f370a7b", features = ["serde"] }
types = { path = "../../eth2/types" }
serde = "1.0"
serde_derive = "1.0"
ssz = { path = "../../eth2/utils/ssz" }
ssz_derive = { path = "../../eth2/utils/ssz_derive" }
slog = "2.4.1"
eth2_ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz_derive = { path = "../../eth2/utils/ssz_derive" }
slog = { version = "^2.4.1" , features = ["max_level_trace", "release_max_level_trace"] }
version = { path = "../version" }
tokio = "0.1.16"
futures = "0.1.25"
error-chain = "0.12.0"
tokio-timer = "0.2.10"
dirs = "2.0.1"

122
beacon_node/eth2-libp2p/src/behaviour.rs
View File

@ -1,45 +1,72 @@
use crate::discovery::Discovery;
use crate::rpc::{RPCEvent, RPCMessage, Rpc};
use crate::NetworkConfig;
use crate::{error, NetworkConfig};
use crate::{Topic, TopicHash};
use futures::prelude::*;
use libp2p::{
core::{
identity::Keypair,
swarm::{NetworkBehaviourAction, NetworkBehaviourEventProcess},
PublicKey,
},
discv5::Discv5Event,
gossipsub::{Gossipsub, GossipsubEvent},
identify::{protocol::IdentifyInfo, Identify, IdentifyEvent},
ping::{Ping, PingEvent},
ping::{Ping, PingConfig, PingEvent},
tokio_io::{AsyncRead, AsyncWrite},
NetworkBehaviour, PeerId,
};
use slog::{debug, o, trace, warn};
use slog::{o, trace, warn};
use ssz::{ssz_encode, Decode, DecodeError, Encode};
use std::num::NonZeroU32;
use std::time::Duration;
use types::{Attestation, BeaconBlock};
use types::{Topic, TopicHash};
/// Builds the network behaviour for the libp2p Swarm.
/// Implements gossipsub message routing.
/// Builds the network behaviour that manages the core protocols of eth2.
/// This core behaviour is managed by `Behaviour` which adds peer management to all core
/// behaviours.
#[derive(NetworkBehaviour)]
#[behaviour(out_event = "BehaviourEvent", poll_method = "poll")]
pub struct Behaviour<TSubstream: AsyncRead + AsyncWrite> {
/// The routing pub-sub mechanism for eth2.
gossipsub: Gossipsub<TSubstream>,
// TODO: Add Kademlia for peer discovery
/// The events generated by this behaviour to be consumed in the swarm poll.
/// The serenity RPC specified in the wire-0 protocol.
serenity_rpc: Rpc<TSubstream>,
/// Allows discovery of IP addresses for peers on the network.
identify: Identify<TSubstream>,
/// Keep regular connection to peers and disconnect if absent.
// TODO: Keepalive, likely remove this later.
// TODO: Make the ping time customizeable.
ping: Ping<TSubstream>,
/// Kademlia for peer discovery.
discovery: Discovery<TSubstream>,
#[behaviour(ignore)]
/// The events generated by this behaviour to be consumed in the swarm poll.
events: Vec<BehaviourEvent>,
/// Logger for behaviour actions.
#[behaviour(ignore)]
log: slog::Logger,
}
impl<TSubstream: AsyncRead + AsyncWrite> Behaviour<TSubstream> {
pub fn new(
local_key: &Keypair,
net_conf: &NetworkConfig,
log: &slog::Logger,
) -> error::Result<Self> {
let local_peer_id = local_key.public().clone().into_peer_id();
let behaviour_log = log.new(o!());
let ping_config = PingConfig::new()
.with_timeout(Duration::from_secs(30))
.with_interval(Duration::from_secs(20))
.with_max_failures(NonZeroU32::new(2).expect("2 != 0"))
.with_keep_alive(false);
Ok(Behaviour {
serenity_rpc: Rpc::new(log),
gossipsub: Gossipsub::new(local_peer_id.clone(), net_conf.gs_config.clone()),
discovery: Discovery::new(local_key, net_conf, log)?,
ping: Ping::new(ping_config),
events: Vec::new(),
log: behaviour_log,
})
}
}
// Implement the NetworkBehaviourEventProcess trait so that we can derive NetworkBehaviour for Behaviour
impl<TSubstream: AsyncRead + AsyncWrite> NetworkBehaviourEventProcess<GossipsubEvent>
for Behaviour<TSubstream>
@ -89,30 +116,6 @@ impl<TSubstream: AsyncRead + AsyncWrite> NetworkBehaviourEventProcess<RPCMessage
}
}
impl<TSubstream: AsyncRead + AsyncWrite> NetworkBehaviourEventProcess<IdentifyEvent>
for Behaviour<TSubstream>
{
fn inject_event(&mut self, event: IdentifyEvent) {
match event {
IdentifyEvent::Identified {
peer_id, mut info, ..
} => {
if info.listen_addrs.len() > 20 {
debug!(
self.log,
"More than 20 peers have been identified, truncating"
);
info.listen_addrs.truncate(20);
}
self.events
.push(BehaviourEvent::Identified(peer_id, Box::new(info)));
}
IdentifyEvent::Error { .. } => {}
IdentifyEvent::SendBack { .. } => {}
}
}
}
impl<TSubstream: AsyncRead + AsyncWrite> NetworkBehaviourEventProcess<PingEvent>
for Behaviour<TSubstream>
{
@ -122,25 +125,6 @@ impl<TSubstream: AsyncRead + AsyncWrite> NetworkBehaviourEventProcess<PingEvent>
}
impl<TSubstream: AsyncRead + AsyncWrite> Behaviour<TSubstream> {
pub fn new(local_public_key: PublicKey, net_conf: &NetworkConfig, log: &slog::Logger) -> Self {
let local_peer_id = local_public_key.clone().into_peer_id();
let identify_config = net_conf.identify_config.clone();
let behaviour_log = log.new(o!());
Behaviour {
gossipsub: Gossipsub::new(local_peer_id, net_conf.gs_config.clone()),
serenity_rpc: Rpc::new(log),
identify: Identify::new(
identify_config.version,
identify_config.user_agent,
local_public_key,
),
ping: Ping::new(),
events: Vec::new(),
log: behaviour_log,
}
}
/// Consumes the events list when polled.
fn poll<TBehaviourIn>(
&mut self,
@ -153,18 +137,23 @@ impl<TSubstream: AsyncRead + AsyncWrite> Behaviour<TSubstream> {
}
}
impl<TSubstream: AsyncRead + AsyncWrite> NetworkBehaviourEventProcess<Discv5Event>
for Behaviour<TSubstream>
{
fn inject_event(&mut self, _event: Discv5Event) {
// discv5 has no events to inject
}
}
/// Implements the combined behaviour for the libp2p service.
impl<TSubstream: AsyncRead + AsyncWrite> Behaviour<TSubstream> {
/* Pubsub behaviour functions */
/// Subscribes to a gossipsub topic.
pub fn subscribe(&mut self, topic: Topic) -> bool {
self.gossipsub.subscribe(topic)
}
/// Sends an RPC Request/Response via the RPC protocol.
pub fn send_rpc(&mut self, peer_id: PeerId, rpc_event: RPCEvent) {
self.serenity_rpc.send_rpc(peer_id, rpc_event);
}
/// Publishes a message on the pubsub (gossipsub) behaviour.
pub fn publish(&mut self, topics: Vec<Topic>, message: PubsubMessage) {
let message_bytes = ssz_encode(&message);
@ -172,14 +161,19 @@ impl<TSubstream: AsyncRead + AsyncWrite> Behaviour<TSubstream> {
self.gossipsub.publish(topic, message_bytes.clone());
}
}
/* Eth2 RPC behaviour functions */
/// Sends an RPC Request/Response via the RPC protocol.
pub fn send_rpc(&mut self, peer_id: PeerId, rpc_event: RPCEvent) {
self.serenity_rpc.send_rpc(peer_id, rpc_event);
}
}
/// The types of events than can be obtained from polling the behaviour.
pub enum BehaviourEvent {
RPC(PeerId, RPCEvent),
PeerDialed(PeerId),
Identified(PeerId, Box<IdentifyInfo>),
// TODO: This is a stub at the moment
GossipMessage {
source: PeerId,
topics: Vec<TopicHash>,

132
beacon_node/eth2-libp2p/src/config.rs
View File

@ -1,89 +1,129 @@
use clap::ArgMatches;
use enr::Enr;
use libp2p::gossipsub::{GossipsubConfig, GossipsubConfigBuilder};
use serde_derive::{Deserialize, Serialize};
use types::multiaddr::{Error as MultiaddrError, Multiaddr};
use std::path::PathBuf;
use std::time::Duration;
/// The beacon node topic string to subscribe to.
pub const BEACON_PUBSUB_TOPIC: &str = "beacon_block";
pub const BEACON_ATTESTATION_TOPIC: &str = "beacon_attestation";
pub const SHARD_TOPIC_PREFIX: &str = "shard";
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(default)]
/// Network configuration for lighthouse.
pub struct Config {
/// Data directory where node's keyfile is stored
pub network_dir: PathBuf,
/// IP address to listen on.
listen_addresses: Vec<String>,
pub listen_address: std::net::IpAddr,
/// The TCP port that libp2p listens on.
pub libp2p_port: u16,
/// The address to broadcast to peers about which address we are listening on.
pub discovery_address: std::net::IpAddr,
/// UDP port that discovery listens on.
pub discovery_port: u16,
/// Target number of connected peers.
pub max_peers: usize,
/// Gossipsub configuration parameters.
#[serde(skip)]
pub gs_config: GossipsubConfig,
/// Configuration parameters for node identification protocol.
#[serde(skip)]
pub identify_config: IdentifyConfig,
/// List of nodes to initially connect to.
boot_nodes: Vec<String>,
pub boot_nodes: Vec<Enr>,
/// Client version
pub client_version: String,
/// List of topics to subscribe to as strings
/// List of extra topics to initially subscribe to as strings.
pub topics: Vec<String>,
}
impl Default for Config {
/// Generate a default network configuration.
fn default() -> Self {
let mut network_dir = dirs::home_dir().unwrap_or_else(|| PathBuf::from("."));
network_dir.push(".lighthouse");
network_dir.push("network");
Config {
listen_addresses: vec!["/ip4/127.0.0.1/tcp/9000".to_string()],
network_dir,
listen_address: "127.0.0.1".parse().expect("vaild ip address"),
libp2p_port: 9000,
discovery_address: "127.0.0.1".parse().expect("valid ip address"),
discovery_port: 9000,
max_peers: 10,
//TODO: Set realistic values for production
gs_config: GossipsubConfigBuilder::new()
.max_gossip_size(4_000_000)
.inactivity_timeout(Duration::from_secs(90))
.heartbeat_interval(Duration::from_secs(20))
.build(),
identify_config: IdentifyConfig::default(),
boot_nodes: vec![],
client_version: version::version(),
topics: vec![String::from("beacon_chain")],
topics: Vec::new(),
}
}
}
/// Generates a default Config.
impl Config {
pub fn new(boot_nodes: Vec<String>) -> Self {
let mut conf = Config::default();
conf.boot_nodes = boot_nodes;
conf
pub fn new() -> Self {
Config::default()
}
pub fn listen_addresses(&self) -> Result<Vec<Multiaddr>, MultiaddrError> {
self.listen_addresses.iter().map(|s| s.parse()).collect()
}
pub fn apply_cli_args(&mut self, args: &ArgMatches) -> Result<(), String> {
if let Some(dir) = args.value_of("datadir") {
self.network_dir = PathBuf::from(dir).join("network");
};
pub fn boot_nodes(&self) -> Result<Vec<Multiaddr>, MultiaddrError> {
self.boot_nodes.iter().map(|s| s.parse()).collect()
}
pub fn apply_cli_args(&mut self, args: &ArgMatches) -> Result<(), &'static str> {
if let Some(listen_address_str) = args.value_of("listen-address") {
let listen_addresses = listen_address_str.split(',').map(Into::into).collect();
self.listen_addresses = listen_addresses;
let listen_address = listen_address_str
.parse()
.map_err(|_| format!("Invalid listen address: {:?}", listen_address_str))?;
self.listen_address = listen_address;
self.discovery_address = listen_address;
}
if let Some(boot_addresses_str) = args.value_of("boot-nodes") {
let boot_addresses = boot_addresses_str.split(',').map(Into::into).collect();
self.boot_nodes = boot_addresses;
if let Some(max_peers_str) = args.value_of("maxpeers") {
self.max_peers = max_peers_str
.parse::<usize>()
.map_err(|_| format!("Invalid number of max peers: {}", max_peers_str))?;
}
if let Some(port_str) = args.value_of("port") {
let port = port_str
.parse::<u16>()
.map_err(|_| format!("Invalid port: {}", port_str))?;
self.libp2p_port = port;
self.discovery_port = port;
}
if let Some(boot_enr_str) = args.value_of("boot-nodes") {
self.boot_nodes = boot_enr_str
.split(',')
.map(|enr| enr.parse().map_err(|_| format!("Invalid ENR: {}", enr)))
.collect::<Result<Vec<Enr>, _>>()?;
}
if let Some(discovery_address_str) = args.value_of("discovery-address") {
self.discovery_address = discovery_address_str
.parse()
.map_err(|_| format!("Invalid discovery address: {:?}", discovery_address_str))?
}
if let Some(disc_port_str) = args.value_of("disc-port") {
self.discovery_port = disc_port_str
.parse::<u16>()
.map_err(|_| format!("Invalid discovery port: {}", disc_port_str))?;
}
Ok(())
}
}
/// The configuration parameters for the Identify protocol
#[derive(Debug, Clone)]
pub struct IdentifyConfig {
/// The protocol version to listen on.
pub version: String,
/// The client's name and version for identification.
pub user_agent: String,
}
impl Default for IdentifyConfig {
fn default() -> Self {
Self {
version: "/eth/serenity/1.0".to_string(),
user_agent: version::version(),
}
}
}

313
beacon_node/eth2-libp2p/src/discovery.rs Normal file
View File

@ -0,0 +1,313 @@
use crate::{error, NetworkConfig};
/// This manages the discovery and management of peers.
///
/// Currently using discv5 for peer discovery.
///
use futures::prelude::*;
use libp2p::core::swarm::{
ConnectedPoint, NetworkBehaviour, NetworkBehaviourAction, PollParameters,
};
use libp2p::core::{identity::Keypair, Multiaddr, PeerId, ProtocolsHandler};
use libp2p::discv5::{Discv5, Discv5Event};
use libp2p::enr::{Enr, EnrBuilder, NodeId};
use libp2p::multiaddr::Protocol;
use slog::{debug, info, o, warn};
use std::collections::HashSet;
use std::fs::File;
use std::io::prelude::*;
use std::str::FromStr;
use std::time::{Duration, Instant};
use tokio::io::{AsyncRead, AsyncWrite};
use tokio_timer::Delay;
/// Maximum seconds before searching for extra peers.
const MAX_TIME_BETWEEN_PEER_SEARCHES: u64 = 60;
/// Initial delay between peer searches.
const INITIAL_SEARCH_DELAY: u64 = 5;
/// Local ENR storage filename.
const ENR_FILENAME: &str = "enr.dat";
/// Lighthouse discovery behaviour. This provides peer management and discovery using the Discv5
/// libp2p protocol.
pub struct Discovery<TSubstream> {
/// The peers currently connected to libp2p streams.
connected_peers: HashSet<PeerId>,
/// The target number of connected peers on the libp2p interface.
max_peers: usize,
/// The delay between peer discovery searches.
peer_discovery_delay: Delay,
/// Tracks the last discovery delay. The delay is doubled each round until the max
/// time is reached.
past_discovery_delay: u64,
/// The TCP port for libp2p. Used to convert an updated IP address to a multiaddr. Note: This
/// assumes that the external TCP port is the same as the internal TCP port if behind a NAT.
//TODO: Improve NAT handling limit the above restriction
tcp_port: u16,
/// The discovery behaviour used to discover new peers.
discovery: Discv5<TSubstream>,
/// Logger for the discovery behaviour.
log: slog::Logger,
}
impl<TSubstream> Discovery<TSubstream> {
pub fn new(
local_key: &Keypair,
config: &NetworkConfig,
log: &slog::Logger,
) -> error::Result<Self> {
let log = log.new(o!("Service" => "Libp2p-Discovery"));
// checks if current ENR matches that found on disk
let local_enr = load_enr(local_key, config, &log)?;
info!(log, "Local ENR: {}", local_enr.to_base64());
debug!(log, "Local Node Id: {}", local_enr.node_id());
let mut discovery = Discv5::new(local_enr, local_key.clone(), config.listen_address)
.map_err(|e| format!("Discv5 service failed: {:?}", e))?;
// Add bootnodes to routing table
for bootnode_enr in config.boot_nodes.clone() {
debug!(
log,
"Adding node to routing table: {}",
bootnode_enr.node_id()
);
discovery.add_enr(bootnode_enr);
}
Ok(Self {
connected_peers: HashSet::new(),
max_peers: config.max_peers,
peer_discovery_delay: Delay::new(Instant::now()),
past_discovery_delay: INITIAL_SEARCH_DELAY,
tcp_port: config.libp2p_port,
discovery,
log,
})
}
/// Manually search for peers. This restarts the discovery round, sparking multiple rapid
/// queries.
pub fn discover_peers(&mut self) {
self.past_discovery_delay = INITIAL_SEARCH_DELAY;
self.find_peers();
}
/// Add an Enr to the routing table of the discovery mechanism.
pub fn add_enr(&mut self, enr: Enr) {
self.discovery.add_enr(enr);
}
/// Search for new peers using the underlying discovery mechanism.
fn find_peers(&mut self) {
// pick a random NodeId
let random_node = NodeId::random();
debug!(self.log, "Searching for peers...");
self.discovery.find_node(random_node);
// update the time until next discovery
let delay = {
if self.past_discovery_delay < MAX_TIME_BETWEEN_PEER_SEARCHES {
self.past_discovery_delay *= 2;
self.past_discovery_delay
} else {
MAX_TIME_BETWEEN_PEER_SEARCHES
}
};
self.peer_discovery_delay
.reset(Instant::now() + Duration::from_secs(delay));
}
}
// Redirect all behaviour events to underlying discovery behaviour.
impl<TSubstream> NetworkBehaviour for Discovery<TSubstream>
where
TSubstream: AsyncRead + AsyncWrite,
{
type ProtocolsHandler = <Discv5<TSubstream> as NetworkBehaviour>::ProtocolsHandler;
type OutEvent = <Discv5<TSubstream> as NetworkBehaviour>::OutEvent;
fn new_handler(&mut self) -> Self::ProtocolsHandler {
NetworkBehaviour::new_handler(&mut self.discovery)
}
fn addresses_of_peer(&mut self, peer_id: &PeerId) -> Vec<Multiaddr> {
// Let discovery track possible known peers.
self.discovery.addresses_of_peer(peer_id)
}
fn inject_connected(&mut self, peer_id: PeerId, _endpoint: ConnectedPoint) {
self.connected_peers.insert(peer_id);
}
fn inject_disconnected(&mut self, peer_id: &PeerId, _endpoint: ConnectedPoint) {
self.connected_peers.remove(peer_id);
}
fn inject_replaced(
&mut self,
_peer_id: PeerId,
_closed: ConnectedPoint,
_opened: ConnectedPoint,
) {
// discv5 doesn't implement
}
fn inject_node_event(
&mut self,
_peer_id: PeerId,
_event: <Self::ProtocolsHandler as ProtocolsHandler>::OutEvent,
) {
// discv5 doesn't implement
}
fn poll(
&mut self,
params: &mut impl PollParameters,
) -> Async<
NetworkBehaviourAction<
<Self::ProtocolsHandler as ProtocolsHandler>::InEvent,
Self::OutEvent,
>,
> {
// search for peers if it is time
loop {
match self.peer_discovery_delay.poll() {
Ok(Async::Ready(_)) => {
if self.connected_peers.len() < self.max_peers {
self.find_peers();
}
}
Ok(Async::NotReady) => break,
Err(e) => {
warn!(self.log, "Discovery peer search failed: {:?}", e);
}
}
}
// Poll discovery
loop {
match self.discovery.poll(params) {
Async::Ready(NetworkBehaviourAction::GenerateEvent(event)) => {
match event {
Discv5Event::Discovered(_enr) => {
// not concerned about FINDNODE results, rather the result of an entire
// query.
}
Discv5Event::SocketUpdated(socket) => {
info!(self.log, "Address updated"; "IP" => format!("{}",socket.ip()));
let mut address = Multiaddr::from(socket.ip());
address.push(Protocol::Tcp(self.tcp_port));
return Async::Ready(NetworkBehaviourAction::ReportObservedAddr {
address,
});
}
Discv5Event::FindNodeResult { closer_peers, .. } => {
debug!(self.log, "Discv5 query found {} peers", closer_peers.len());
if closer_peers.is_empty() {
debug!(self.log, "Discv5 random query yielded empty results");
}
for peer_id in closer_peers {
// if we need more peers, attempt a connection
if self.connected_peers.len() < self.max_peers
&& self.connected_peers.get(&peer_id).is_none()
{
debug!(self.log, "Discv5: Peer discovered"; "Peer"=> format!("{:?}", peer_id));
return Async::Ready(NetworkBehaviourAction::DialPeer {
peer_id,
});
}
}
}
_ => {}
}
}
// discv5 does not output any other NetworkBehaviourAction
Async::Ready(_) => {}
Async::NotReady => break,
}
}
Async::NotReady
}
}
/// Loads an ENR from file if it exists and matches the current NodeId and sequence number. If none
/// exists, generates a new one.
///
/// If an ENR exists, with the same NodeId and IP address, we use the disk-generated one as its
/// ENR sequence will be equal or higher than a newly generated one.
fn load_enr(
local_key: &Keypair,
config: &NetworkConfig,
log: &slog::Logger,
) -> Result<Enr, String> {
// Build the local ENR.
// Note: Discovery should update the ENR record's IP to the external IP as seen by the
// majority of our peers.
let mut local_enr = EnrBuilder::new()
.ip(config.discovery_address.into())
.tcp(config.libp2p_port)
.udp(config.discovery_port)
.build(&local_key)
.map_err(|e| format!("Could not build Local ENR: {:?}", e))?;
let enr_f = config.network_dir.join(ENR_FILENAME);
if let Ok(mut enr_file) = File::open(enr_f.clone()) {
let mut enr_string = String::new();
match enr_file.read_to_string(&mut enr_string) {
Err(_) => debug!(log, "Could not read ENR from file"),
Ok(_) => {
match Enr::from_str(&enr_string) {
Ok(enr) => {
debug!(log, "ENR found in file: {:?}", enr_f);
if enr.node_id() == local_enr.node_id() {
if enr.ip() == config.discovery_address.into()
&& enr.tcp() == Some(config.libp2p_port)
&& enr.udp() == Some(config.discovery_port)
{
debug!(log, "ENR loaded from file");
// the stored ENR has the same configuration, use it
return Ok(enr);
}
// same node id, different configuration - update the sequence number
let new_seq_no = enr.seq().checked_add(1).ok_or_else(|| "ENR sequence number on file is too large. Remove it to generate a new NodeId")?;
local_enr.set_seq(new_seq_no, local_key).map_err(|e| {
format!("Could not update ENR sequence number: {:?}", e)
})?;
debug!(log, "ENR sequence number increased to: {}", new_seq_no);
}
}
Err(e) => {
warn!(log, "ENR from file could not be decoded: {:?}", e);
}
}
}
}
}
// write ENR to disk
let _ = std::fs::create_dir_all(&config.network_dir);
match File::create(enr_f.clone())
.and_then(|mut f| f.write_all(&local_enr.to_base64().as_bytes()))
{
Ok(_) => {
debug!(log, "ENR written to disk");
}
Err(e) => {
warn!(
log,
"Could not write ENR to file: {:?}. Error: {}", enr_f, e
);
}
}
Ok(local_enr)
}

10
beacon_node/eth2-libp2p/src/lib.rs
View File

@ -4,12 +4,18 @@
/// This crate builds and manages the libp2p services required by the beacon node.
pub mod behaviour;
mod config;
mod discovery;
pub mod error;
pub mod rpc;
mod service;
pub use behaviour::PubsubMessage;
pub use config::Config as NetworkConfig;
pub use config::{
Config as NetworkConfig, BEACON_ATTESTATION_TOPIC, BEACON_PUBSUB_TOPIC, SHARD_TOPIC_PREFIX,
};
pub use libp2p::floodsub::{Topic, TopicBuilder, TopicHash};
pub use libp2p::multiaddr;
pub use libp2p::Multiaddr;
pub use libp2p::{
gossipsub::{GossipsubConfig, GossipsubConfigBuilder},
PeerId,
@ -17,5 +23,3 @@ pub use libp2p::{
pub use rpc::RPCEvent;
pub use service::Libp2pEvent;
pub use service::Service;
pub use types::multiaddr;
pub use types::Multiaddr;

2
beacon_node/eth2-libp2p/src/rpc/mod.rs
View File

@ -94,7 +94,7 @@ where
fn poll(
&mut self,
_: &mut PollParameters<'_>,
_: &mut impl PollParameters,
) -> Async<
NetworkBehaviourAction<
<Self::ProtocolsHandler as ProtocolsHandler>::InEvent,

1
beacon_node/eth2-libp2p/src/rpc/protocol.rs
View File

@ -11,7 +11,6 @@ use tokio::io::{AsyncRead, AsyncWrite};
const MAX_READ_SIZE: usize = 4_194_304; // 4M
/// Implementation of the `ConnectionUpgrade` for the rpc protocol.
#[derive(Debug, Clone)]
pub struct RPCProtocol;

143
beacon_node/eth2-libp2p/src/service.rs
View File

@ -3,25 +3,30 @@ use crate::error;
use crate::multiaddr::Protocol;
use crate::rpc::RPCEvent;
use crate::NetworkConfig;
use crate::{TopicBuilder, TopicHash};
use crate::{BEACON_ATTESTATION_TOPIC, BEACON_PUBSUB_TOPIC};
use futures::prelude::*;
use futures::Stream;
use libp2p::core::{
identity,
identity::Keypair,
multiaddr::Multiaddr,
muxing::StreamMuxerBox,
nodes::Substream,
transport::boxed::Boxed,
upgrade::{InboundUpgradeExt, OutboundUpgradeExt},
};
use libp2p::identify::protocol::IdentifyInfo;
use libp2p::{core, secio, PeerId, Swarm, Transport};
use slog::{debug, info, trace, warn};
use std::fs::File;
use std::io::prelude::*;
use std::io::{Error, ErrorKind};
use std::time::Duration;
use types::{TopicBuilder, TopicHash};
type Libp2pStream = Boxed<(PeerId, StreamMuxerBox), Error>;
type Libp2pBehaviour = Behaviour<Substream<StreamMuxerBox>>;
const NETWORK_KEY_FILENAME: &str = "key";
/// The configuration and state of the libp2p components for the beacon node.
pub struct Service {
/// The libp2p Swarm handler.
@ -35,59 +40,52 @@ pub struct Service {
impl Service {
pub fn new(config: NetworkConfig, log: slog::Logger) -> error::Result<Self> {
debug!(log, "Libp2p Service starting");
debug!(log, "Network-libp2p Service starting");
// TODO: Currently using secp256k1 key pairs. Wire protocol specifies RSA. Waiting for this
// PR to be merged to generate RSA keys: https://github.com/briansmith/ring/pull/733
// TODO: Save and recover node key from disk
let local_private_key = identity::Keypair::generate_secp256k1();
// load the private key from CLI flag, disk or generate a new one
let local_private_key = load_private_key(&config, &log);
let local_public_key = local_private_key.public();
let local_peer_id = PeerId::from(local_private_key.public());
info!(log, "Local peer id: {:?}", local_peer_id);
let mut swarm = {
// Set up the transport
let transport = build_transport(local_private_key);
// Set up gossipsub routing
let behaviour = Behaviour::new(local_public_key.clone(), &config, &log);
// Set up Topology
let topology = local_peer_id.clone();
Swarm::new(transport, behaviour, topology)
// Set up the transport - tcp/ws with secio and mplex/yamux
let transport = build_transport(local_private_key.clone());
// Lighthouse network behaviour
let behaviour = Behaviour::new(&local_private_key, &config, &log)?;
Swarm::new(transport, behaviour, local_peer_id.clone())
};
// listen on all addresses
for address in config
.listen_addresses()
.map_err(|e| format!("Invalid listen multiaddr: {}", e))?
{
match Swarm::listen_on(&mut swarm, address.clone()) {
Ok(mut listen_addr) => {
listen_addr.append(Protocol::P2p(local_peer_id.clone().into()));
info!(log, "Listening on: {}", listen_addr);
}
Err(err) => warn!(log, "Cannot listen on: {} : {:?}", address, err),
};
}
// connect to boot nodes - these are currently stored as multiaddrs
// Once we have discovery, can set to peerId
for bootnode in config
.boot_nodes()
.map_err(|e| format!("Invalid boot node multiaddr: {:?}", e))?
{
match Swarm::dial_addr(&mut swarm, bootnode.clone()) {
Ok(()) => debug!(log, "Dialing bootnode: {}", bootnode),
Err(err) => debug!(
log,
"Could not connect to bootnode: {} error: {:?}", bootnode, err
),
};
}
// listen on the specified address
let listen_multiaddr = {
let mut m = Multiaddr::from(config.listen_address);
m.push(Protocol::Tcp(config.libp2p_port));
m
};
match Swarm::listen_on(&mut swarm, listen_multiaddr.clone()) {
Ok(_) => {
let mut log_address = listen_multiaddr;
log_address.push(Protocol::P2p(local_peer_id.clone().into()));
info!(log, "Listening on: {}", log_address);
}
Err(err) => warn!(
log,
"Cannot listen on: {} because: {:?}", listen_multiaddr, err
),
};
// subscribe to default gossipsub topics
let mut topics = vec![];
//TODO: Handle multiple shard attestations. For now we simply use a separate topic for
//attestations
topics.push(BEACON_ATTESTATION_TOPIC.to_string());
topics.push(BEACON_PUBSUB_TOPIC.to_string());
topics.append(&mut config.topics.clone());
let mut subscribed_topics = vec![];
for topic in config.topics {
let t = TopicBuilder::new(topic.to_string()).build();
for topic in topics {
let t = TopicBuilder::new(topic.clone()).build();
if swarm.subscribe(t) {
trace!(log, "Subscribed to topic: {:?}", topic);
subscribed_topics.push(topic);
@ -135,9 +133,6 @@ impl Stream for Service {
BehaviourEvent::PeerDialed(peer_id) => {
return Ok(Async::Ready(Some(Libp2pEvent::PeerDialed(peer_id))));
}
BehaviourEvent::Identified(peer_id, info) => {
return Ok(Async::Ready(Some(Libp2pEvent::Identified(peer_id, info))));
}
},
Ok(Async::Ready(None)) => unreachable!("Swarm stream shouldn't end"),
Ok(Async::NotReady) => break,
@ -150,7 +145,7 @@ impl Stream for Service {
/// The implementation supports TCP/IP, WebSockets over TCP/IP, secio as the encryption layer, and
/// mplex or yamux as the multiplexing layer.
fn build_transport(local_private_key: identity::Keypair) -> Boxed<(PeerId, StreamMuxerBox), Error> {
fn build_transport(local_private_key: Keypair) -> Boxed<(PeerId, StreamMuxerBox), Error> {
// TODO: The Wire protocol currently doesn't specify encryption and this will need to be customised
// in the future.
let transport = libp2p::tcp::TcpConfig::new();
@ -187,8 +182,6 @@ pub enum Libp2pEvent {
RPC(PeerId, RPCEvent),
/// Initiated the connection to a new peer.
PeerDialed(PeerId),
/// Received information about a peer on the network.
Identified(PeerId, Box<IdentifyInfo>),
/// Received pubsub message.
PubsubMessage {
source: PeerId,
@ -196,3 +189,51 @@ pub enum Libp2pEvent {
message: Box<PubsubMessage>,
},
}
/// Loads a private key from disk. If this fails, a new key is
/// generated and is then saved to disk.
///
/// Currently only secp256k1 keys are allowed, as these are the only keys supported by discv5.
fn load_private_key(config: &NetworkConfig, log: &slog::Logger) -> Keypair {
// TODO: Currently using secp256k1 keypairs - currently required for discv5
// check for key from disk
let network_key_f = config.network_dir.join(NETWORK_KEY_FILENAME);
if let Ok(mut network_key_file) = File::open(network_key_f.clone()) {
let mut key_bytes: Vec<u8> = Vec::with_capacity(36);
match network_key_file.read_to_end(&mut key_bytes) {
Err(_) => debug!(log, "Could not read network key file"),
Ok(_) => {
// only accept secp256k1 keys for now
if let Ok(secret_key) =
libp2p::core::identity::secp256k1::SecretKey::from_bytes(&mut key_bytes)
{
let kp: libp2p::core::identity::secp256k1::Keypair = secret_key.into();
debug!(log, "Loaded network key from disk.");
return Keypair::Secp256k1(kp);
} else {
debug!(log, "Network key file is not a valid secp256k1 key");
}
}
}
}
// if a key could not be loaded from disk, generate a new one and save it
let local_private_key = Keypair::generate_secp256k1();
if let Keypair::Secp256k1(key) = local_private_key.clone() {
let _ = std::fs::create_dir_all(&config.network_dir);
match File::create(network_key_f.clone())
.and_then(|mut f| f.write_all(&key.secret().to_bytes()))
{
Ok(_) => {
debug!(log, "New network key generated and written to disk");
}
Err(e) => {
warn!(
log,
"Could not write node key to file: {:?}. Error: {}", network_key_f, e
);
}
}
}
local_private_key
}

2
beacon_node/http_server/Cargo.toml
View File

@ -13,7 +13,7 @@ network = { path = "../network" }
eth2-libp2p = { path = "../eth2-libp2p" }
version = { path = "../version" }
types = { path = "../../eth2/types" }
ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
slot_clock = { path = "../../eth2/utils/slot_clock" }
protos = { path = "../../protos" }
grpcio = { version = "0.4", default-features = false, features = ["protobuf-codec"] }

4
beacon_node/network/Cargo.toml
View File

@ -13,8 +13,8 @@ store = { path = "../store" }
eth2-libp2p = { path = "../eth2-libp2p" }
version = { path = "../version" }
types = { path = "../../eth2/types" }
slog = { version = "^2.2.3" , features = ["max_level_trace", "release_max_level_debug"] }
ssz = { path = "../../eth2/utils/ssz" }
slog = { version = "^2.2.3" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
tree_hash = { path = "../../eth2/utils/tree_hash" }
futures = "0.1.25"
error-chain = "0.12.0"

8
beacon_node/network/src/service.rs
View File

@ -4,6 +4,7 @@ use crate::NetworkConfig;
use beacon_chain::{BeaconChain, BeaconChainTypes};
use crossbeam_channel::{unbounded as channel, Sender, TryRecvError};
use eth2_libp2p::Service as LibP2PService;
use eth2_libp2p::Topic;
use eth2_libp2p::{Libp2pEvent, PeerId};
use eth2_libp2p::{PubsubMessage, RPCEvent};
use futures::prelude::*;
@ -13,7 +14,6 @@ use slog::{debug, info, o, trace};
use std::marker::PhantomData;
use std::sync::Arc;
use tokio::runtime::TaskExecutor;
use types::Topic;
/// Service that handles communication between internal services and the eth2_libp2p network service.
pub struct Service<T: BeaconChainTypes> {
@ -126,12 +126,6 @@ fn network_service(
.send(HandlerMessage::PeerDialed(peer_id))
.map_err(|_| "failed to send rpc to handler")?;
}
Libp2pEvent::Identified(peer_id, info) => {
debug!(
log,
"We have identified peer: {:?} with {:?}", peer_id, info
);
}
Libp2pEvent::PubsubMessage {
source, message, ..
} => {

121
beacon_node/network/src/sync/import_queue.rs
View File

@ -1,7 +1,8 @@
use beacon_chain::{BeaconChain, BeaconChainTypes};
use eth2_libp2p::rpc::methods::*;
use eth2_libp2p::PeerId;
use slog::{debug, error};
use slog::error;
use std::collections::HashMap;
use std::sync::Arc;
use std::time::{Duration, Instant};
use tree_hash::TreeHash;
@ -22,7 +23,7 @@ use types::{BeaconBlock, BeaconBlockBody, BeaconBlockHeader, Hash256, Slot};
pub struct ImportQueue<T: BeaconChainTypes> {
pub chain: Arc<BeaconChain<T>>,
/// Partially imported blocks, keyed by the root of `BeaconBlockBody`.
pub partials: Vec<PartialBeaconBlock>,
partials: HashMap<Hash256, PartialBeaconBlock>,
/// Time before a queue entry is considered state.
pub stale_time: Duration,
/// Logging
@ -34,7 +35,7 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
pub fn new(chain: Arc<BeaconChain<T>>, stale_time: Duration, log: slog::Logger) -> Self {
Self {
chain,
partials: vec![],
partials: HashMap::new(),
stale_time,
log,
}
@ -52,7 +53,7 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
let mut complete: Vec<(Hash256, BeaconBlock, PeerId)> = self
.partials
.iter()
.filter_map(|partial| partial.clone().complete())
.filter_map(|(_, partial)| partial.clone().complete())
.collect();
// Sort the completable partials to be in ascending slot order.
@ -61,14 +62,14 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
complete
}
pub fn contains_block_root(&self, block_root: Hash256) -> bool {
self.partials.contains_key(&block_root)
}
/// Removes the first `PartialBeaconBlock` with a matching `block_root`, returning the partial
/// if it exists.
pub fn remove(&mut self, block_root: Hash256) -> Option<PartialBeaconBlock> {
let position = self
.partials
.iter()
.position(|p| p.block_root == block_root)?;
Some(self.partials.remove(position))
self.partials.remove(&block_root)
}
/// Flushes all stale entries from the queue.
@ -76,31 +77,10 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
/// An entry is stale if it has as a `inserted` time that is more than `self.stale_time` in the
/// past.
pub fn remove_stale(&mut self) {
let stale_indices: Vec<usize> = self
.partials
.iter()
.enumerate()
.filter_map(|(i, partial)| {
if partial.inserted + self.stale_time <= Instant::now() {
Some(i)
} else {
None
}
})
.collect();
let stale_time = self.stale_time;
if !stale_indices.is_empty() {
debug!(
self.log,
"ImportQueue removing stale entries";
"stale_items" => stale_indices.len(),
"stale_time_seconds" => self.stale_time.as_secs()
);
}
stale_indices.iter().for_each(|&i| {
self.partials.remove(i);
});
self.partials
.retain(|_, partial| partial.inserted + stale_time > Instant::now())
}
/// Returns `true` if `self.chain` has not yet processed this block.
@ -122,27 +102,30 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
block_roots: &[BlockRootSlot],
sender: PeerId,
) -> Vec<BlockRootSlot> {
let new_roots: Vec<BlockRootSlot> = block_roots
let new_block_root_slots: Vec<BlockRootSlot> = block_roots
.iter()
// Ignore any roots already stored in the queue.
.filter(|brs| !self.contains_block_root(brs.block_root))
// Ignore any roots already processed by the chain.
.filter(|brs| self.chain_has_not_seen_block(&brs.block_root))
// Ignore any roots already stored in the queue.
.filter(|brs| !self.partials.iter().any(|p| p.block_root == brs.block_root))
.cloned()
.collect();
new_roots.iter().for_each(|brs| {
self.partials.push(PartialBeaconBlock {
slot: brs.slot,
block_root: brs.block_root,
sender: sender.clone(),
header: None,
body: None,
inserted: Instant::now(),
})
});
self.partials.extend(
new_block_root_slots
.iter()
.map(|brs| PartialBeaconBlock {
slot: brs.slot,
block_root: brs.block_root,
sender: sender.clone(),
header: None,
body: None,
inserted: Instant::now(),
})
.map(|partial| (partial.block_root, partial)),
);
new_roots
new_block_root_slots
}
/// Adds the `headers` to the `partials` queue. Returns a list of `Hash256` block roots for
@ -170,7 +153,7 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
if self.chain_has_not_seen_block(&block_root) {
self.insert_header(block_root, header, sender.clone());
required_bodies.push(block_root)
required_bodies.push(block_root);
}
}
@ -197,31 +180,20 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
/// If the header already exists, the `inserted` time is set to `now` and not other
/// modifications are made.
fn insert_header(&mut self, block_root: Hash256, header: BeaconBlockHeader, sender: PeerId) {
if let Some(i) = self
.partials
.iter()
.position(|p| p.block_root == block_root)
{
// Case 1: there already exists a partial with a matching block root.
//
// The `inserted` time is set to now and the header is replaced, regardless of whether
// it existed or not.
self.partials[i].header = Some(header);
self.partials[i].inserted = Instant::now();
} else {
// Case 2: there was no partial with a matching block root.
//
// A new partial is added. This case permits adding a header without already known the
// root.
self.partials.push(PartialBeaconBlock {
self.partials
.entry(block_root)
.and_modify(|partial| {
partial.header = Some(header.clone());
partial.inserted = Instant::now();
})
.or_insert_with(|| PartialBeaconBlock {
slot: header.slot,
block_root,
header: Some(header),
body: None,
inserted: Instant::now(),
sender,
})
}
});
}
/// Updates an existing partial with the `body`.
@ -232,7 +204,7 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
fn insert_body(&mut self, body: BeaconBlockBody, sender: PeerId) {
let body_root = Hash256::from_slice(&body.tree_hash_root()[..]);
self.partials.iter_mut().for_each(|mut p| {
self.partials.iter_mut().for_each(|(_, mut p)| {
if let Some(header) = &mut p.header {
if body_root == header.block_body_root {
p.inserted = Instant::now();
@ -261,15 +233,10 @@ impl<T: BeaconChainTypes> ImportQueue<T> {
sender,
};
if let Some(i) = self
.partials
.iter()
.position(|p| p.block_root == block_root)
{
self.partials[i] = partial;
} else {
self.partials.push(partial)
}
self.partials
.entry(block_root)
.and_modify(|existing_partial| *existing_partial = partial.clone())
.or_insert(partial);
}
}

209
beacon_node/network/src/sync/simple_sync.rs
View File

@ -4,7 +4,7 @@ use beacon_chain::{BeaconChain, BeaconChainTypes, BlockProcessingOutcome};
use eth2_libp2p::rpc::methods::*;
use eth2_libp2p::rpc::{RPCRequest, RPCResponse, RequestId};
use eth2_libp2p::PeerId;
use slog::{debug, error, info, o, warn};
use slog::{debug, error, info, o, trace, warn};
use std::collections::HashMap;
use std::sync::Arc;
use std::time::Duration;
@ -17,7 +17,7 @@ use types::{
const SLOT_IMPORT_TOLERANCE: u64 = 100;
/// The amount of seconds a block (or partial block) may exist in the import queue.
const QUEUE_STALE_SECS: u64 = 600;
const QUEUE_STALE_SECS: u64 = 6;
/// If a block is more than `FUTURE_SLOT_TOLERANCE` slots ahead of our slot clock, we drop it.
/// Otherwise we queue it.
@ -72,7 +72,6 @@ pub struct SimpleSync<T: BeaconChainTypes> {
import_queue: ImportQueue<T>,
/// The current state of the syncing protocol.
state: SyncState,
/// Sync logger.
log: slog::Logger,
}
@ -160,96 +159,100 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
hello: HelloMessage,
network: &mut NetworkContext,
) {
let spec = &self.chain.spec;
let remote = PeerSyncInfo::from(hello);
let local = PeerSyncInfo::from(&self.chain);
// Disconnect nodes who are on a different network.
let start_slot = |epoch: Epoch| epoch.start_slot(T::EthSpec::slots_per_epoch());
if local.network_id != remote.network_id {
// The node is on a different network, disconnect them.
info!(
self.log, "HandshakeFailure";
"peer" => format!("{:?}", peer_id),
"reason" => "network_id"
);
network.disconnect(peer_id.clone(), GoodbyeReason::IrreleventNetwork);
// Disconnect nodes if our finalized epoch is greater than thieirs, and their finalized
// epoch is not in our chain. Viz., they are on another chain.
//
// If the local or remote have a `latest_finalized_root == ZERO_HASH`, skips checks about
// the finalized_root. The logic is akward and I think we're better without it.
} else if (local.latest_finalized_epoch >= remote.latest_finalized_epoch)
&& (!self
.chain
.rev_iter_block_roots(local.best_slot)
.any(|(root, _slot)| root == remote.latest_finalized_root))
&& (local.latest_finalized_root != spec.zero_hash)
&& (remote.latest_finalized_root != spec.zero_hash)
} else if remote.latest_finalized_epoch <= local.latest_finalized_epoch
&& remote.latest_finalized_root != self.chain.spec.zero_hash
&& local.latest_finalized_root != self.chain.spec.zero_hash
&& (self.root_at_slot(start_slot(remote.latest_finalized_epoch))
!= Some(remote.latest_finalized_root))
{
// The remotes finalized epoch is less than or greater than ours, but the block root is
// different to the one in our chain.
//
// Therefore, the node is on a different chain and we should not communicate with them.
info!(
self.log, "HandshakeFailure";
"peer" => format!("{:?}", peer_id),
"reason" => "wrong_finalized_chain"
"reason" => "different finalized chain"
);
network.disconnect(peer_id.clone(), GoodbyeReason::IrreleventNetwork);
// Process handshakes from peers that seem to be on our chain.
} else {
info!(self.log, "HandshakeSuccess"; "peer" => format!("{:?}", peer_id));
self.known_peers.insert(peer_id.clone(), remote);
// If we have equal or better finalized epochs and best slots, we require nothing else from
// this peer.
} else if remote.latest_finalized_epoch < local.latest_finalized_epoch {
// The node has a lower finalized epoch, their chain is not useful to us. There are two
// cases where a node can have a lower finalized epoch:
//
// We make an exception when our best slot is 0. Best slot does not indicate wether or
// not there is a block at slot zero.
if (remote.latest_finalized_epoch <= local.latest_finalized_epoch)
&& (remote.best_slot <= local.best_slot)
&& (local.best_slot > 0)
{
debug!(self.log, "Peer is naive"; "peer" => format!("{:?}", peer_id));
return;
}
// ## The node is on the same chain
//
// If a node is on the same chain but has a lower finalized epoch, their head must be
// lower than ours. Therefore, we have nothing to request from them.
//
// ## The node is on a fork
//
// If a node is on a fork that has a lower finalized epoch, switching to that fork would
// cause us to revert a finalized block. This is not permitted, therefore we have no
// interest in their blocks.
debug!(
self.log,
"NaivePeer";
"peer" => format!("{:?}", peer_id),
"reason" => "lower finalized epoch"
);
} else if self
.chain
.store
.exists::<BeaconBlock>(&remote.best_root)
.unwrap_or_else(|_| false)
{
// If the node's best-block is already known to us, we have nothing to request.
debug!(
self.log,
"NaivePeer";
"peer" => format!("{:?}", peer_id),
"reason" => "best block is known"
);
} else {
// The remote node has an equal or great finalized epoch and we don't know it's head.
//
// Therefore, there are some blocks between the local finalized epoch and the remote
// head that are worth downloading.
debug!(self.log, "UsefulPeer"; "peer" => format!("{:?}", peer_id));
// If the remote has a higher finalized epoch, request all block roots from our finalized
// epoch through to its best slot.
if remote.latest_finalized_epoch > local.latest_finalized_epoch {
debug!(self.log, "Peer has high finalized epoch"; "peer" => format!("{:?}", peer_id));
let start_slot = local
.latest_finalized_epoch
.start_slot(T::EthSpec::slots_per_epoch());
let required_slots = remote.best_slot - start_slot;
let start_slot = local
.latest_finalized_epoch
.start_slot(T::EthSpec::slots_per_epoch());
let required_slots = remote.best_slot - start_slot;
self.request_block_roots(
peer_id,
BeaconBlockRootsRequest {
start_slot,
count: required_slots.into(),
},
network,
);
// If the remote has a greater best slot, request the roots between our best slot and their
// best slot.
} else if remote.best_slot > local.best_slot {
debug!(self.log, "Peer has higher best slot"; "peer" => format!("{:?}", peer_id));
let start_slot = local
.latest_finalized_epoch
.start_slot(T::EthSpec::slots_per_epoch());
let required_slots = remote.best_slot - start_slot;
self.request_block_roots(
peer_id,
BeaconBlockRootsRequest {
start_slot,
count: required_slots.into(),
},
network,
);
} else {
debug!(self.log, "Nothing to request from peer"; "peer" => format!("{:?}", peer_id));
}
self.request_block_roots(
peer_id,
BeaconBlockRootsRequest {
start_slot,
count: required_slots.into(),
},
network,
);
}
}
fn root_at_slot(&self, target_slot: Slot) -> Option<Hash256> {
self.chain
.rev_iter_block_roots(target_slot)
.take(1)
.find(|(_root, slot)| *slot == target_slot)
.map(|(root, _slot)| root)
}
/// Handle a `BeaconBlockRoots` request from the peer.
pub fn on_beacon_block_roots_request(
&mut self,
@ -275,11 +278,13 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
.collect();
if roots.len() as u64 != req.count {
debug!(
warn!(
self.log,
"BlockRootsRequest";
"peer" => format!("{:?}", peer_id),
"msg" => "Failed to return all requested hashes",
"start_slot" => req.start_slot,
"current_slot" => self.chain.current_state().slot,
"requested" => req.count,
"returned" => roots.len(),
);
@ -351,7 +356,7 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
BeaconBlockHeadersRequest {
start_root: first.block_root,
start_slot: first.slot,
max_headers: (last.slot - first.slot + 1).as_u64(),
max_headers: (last.slot - first.slot).as_u64(),
skip_slots: 0,
},
network,
@ -433,7 +438,9 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
.import_queue
.enqueue_headers(res.headers, peer_id.clone());
self.request_block_bodies(peer_id, BeaconBlockBodiesRequest { block_roots }, network);
if !block_roots.is_empty() {
self.request_block_bodies(peer_id, BeaconBlockBodiesRequest { block_roots }, network);
}
}
/// Handle a `BeaconBlockBodies` request from the peer.
@ -518,9 +525,32 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
{
match outcome {
BlockProcessingOutcome::Processed { .. } => SHOULD_FORWARD_GOSSIP_BLOCK,
BlockProcessingOutcome::ParentUnknown { .. } => {
BlockProcessingOutcome::ParentUnknown { parent } => {
// Clean the stale entries from the queue.
self.import_queue.remove_stale();
// Add this block to the queue
self.import_queue
.enqueue_full_blocks(vec![block], peer_id.clone());
trace!(
self.log,
"NewGossipBlock";
"peer" => format!("{:?}", peer_id),
);
// Unless the parent is in the queue, request the parent block from the peer.
//
// It is likely that this is duplicate work, given we already send a hello
// request. However, I believe there are some edge-cases where the hello
// message doesn't suffice, so we perform this request as well.
if !self.import_queue.contains_block_root(parent) {
// Send a hello to learn of the clients best slot so we can then sync the required
// parent(s).
network.send_rpc_request(
peer_id.clone(),
RPCRequest::Hello(hello_message(&self.chain)),
);
}
SHOULD_FORWARD_GOSSIP_BLOCK
}
@ -696,7 +726,7 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
if let Ok(outcome) = processing_result {
match outcome {
BlockProcessingOutcome::Processed { block_root } => {
info!(
debug!(
self.log, "Imported block from network";
"source" => source,
"slot" => block.slot,
@ -713,28 +743,19 @@ impl<T: BeaconChainTypes> SimpleSync<T> {
"peer" => format!("{:?}", peer_id),
);
// Send a hello to learn of the clients best slot so we can then sync the require
// parent(s).
network.send_rpc_request(
peer_id.clone(),
RPCRequest::Hello(hello_message(&self.chain)),
);
// Explicitly request the parent block from the peer.
// Unless the parent is in the queue, request the parent block from the peer.
//
// It is likely that this is duplicate work, given we already send a hello
// request. However, I believe there are some edge-cases where the hello
// message doesn't suffice, so we perform this request as well.
self.request_block_headers(
peer_id,
BeaconBlockHeadersRequest {
start_root: parent,
start_slot: block.slot - 1,
max_headers: 1,
skip_slots: 0,
},
network,
)
if !self.import_queue.contains_block_root(parent) {
// Send a hello to learn of the clients best slot so we can then sync the require
// parent(s).
network.send_rpc_request(
peer_id.clone(),
RPCRequest::Hello(hello_message(&self.chain)),
);
}
}
BlockProcessingOutcome::FutureSlot {
present_slot,

2
beacon_node/rpc/Cargo.toml
View File

@ -11,7 +11,7 @@ network = { path = "../network" }
eth2-libp2p = { path = "../eth2-libp2p" }
version = { path = "../version" }
types = { path = "../../eth2/types" }
ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
slot_clock = { path = "../../eth2/utils/slot_clock" }
protos = { path = "../../protos" }
grpcio = { version = "0.4", default-features = false, features = ["protobuf-codec"] }

9
beacon_node/rpc/src/attestation.rs
View File

@ -1,5 +1,7 @@
use beacon_chain::{BeaconChain, BeaconChainTypes};
use eth2_libp2p::PubsubMessage;
use eth2_libp2p::TopicBuilder;
use eth2_libp2p::SHARD_TOPIC_PREFIX;
use futures::Future;
use grpcio::{RpcContext, RpcStatus, RpcStatusCode, UnarySink};
use network::NetworkMessage;
@ -136,11 +138,10 @@ impl<T: BeaconChainTypes> AttestationService for AttestationServiceInstance<T> {
"type" => "valid_attestation",
);
// TODO: Obtain topics from the network service properly.
let topic = types::TopicBuilder::new("beacon_chain".to_string()).build();
// valid attestation, propagate to the network
let topic = TopicBuilder::new(SHARD_TOPIC_PREFIX).build();
let message = PubsubMessage::Attestation(attestation);
// Publish the attestation to the p2p network via gossipsub.
self.network_chan
.send(NetworkMessage::Publish {
topics: vec![topic],
@ -150,7 +151,7 @@ impl<T: BeaconChainTypes> AttestationService for AttestationServiceInstance<T> {
error!(
self.log,
"PublishAttestation";
"type" => "failed to publish to gossipsub",
"type" => "failed to publish attestation to gossipsub",
"error" => format!("{:?}", e)
);
});

8
beacon_node/rpc/src/beacon_block.rs
View File

@ -1,6 +1,7 @@
use beacon_chain::{BeaconChain, BeaconChainTypes, BlockProcessingOutcome};
use crossbeam_channel;
use eth2_libp2p::PubsubMessage;
use eth2_libp2p::BEACON_PUBSUB_TOPIC;
use eth2_libp2p::{PubsubMessage, TopicBuilder};
use futures::Future;
use grpcio::{RpcContext, RpcStatus, RpcStatusCode, UnarySink};
use network::NetworkMessage;
@ -104,9 +105,8 @@ impl<T: BeaconChainTypes> BeaconBlockService for BeaconBlockServiceInstance<T> {
"block_root" => format!("{}", block_root),
);
// TODO: Obtain topics from the network service properly.
let topic =
types::TopicBuilder::new("beacon_chain".to_string()).build();
// get the network topic to send on
let topic = TopicBuilder::new(BEACON_PUBSUB_TOPIC).build();
let message = PubsubMessage::Block(block);
// Publish the block to the p2p network via gossipsub.

2
beacon_node/rpc/src/lib.rs
View File

@ -60,8 +60,8 @@ pub fn start_server<T: BeaconChainTypes + Clone + 'static>(
};
let attestation_service = {
let instance = AttestationServiceInstance {
chain: beacon_chain.clone(),
network_chan,
chain: beacon_chain.clone(),
log: log.clone(),
};
create_attestation_service(instance)

125
beacon_node/src/main.rs
View File

@ -1,11 +1,11 @@
extern crate slog;
mod run;
use clap::{App, Arg};
use client::{ClientConfig, Eth2Config};
use eth2_config::{get_data_dir, read_from_file, write_to_file};
use slog::{crit, o, Drain};
use env_logger::{Builder, Env};
use eth2_config::{read_from_file, write_to_file};
use slog::{crit, o, Drain, Level};
use std::fs;
use std::path::PathBuf;
pub const DEFAULT_DATA_DIR: &str = ".lighthouse";
@ -14,10 +14,8 @@ pub const CLIENT_CONFIG_FILENAME: &str = "beacon-node.toml";
pub const ETH2_CONFIG_FILENAME: &str = "eth2-spec.toml";
fn main() {
let decorator = slog_term::TermDecorator::new().build();
let drain = slog_term::CompactFormat::new(decorator).build().fuse();
let drain = slog_async::Async::new(drain).build().fuse();
let logger = slog::Logger::root(drain, o!());
// debugging output for libp2p and external crates
Builder::from_env(Env::default()).init();
let matches = App::new("Lighthouse")
.version(version::version().as_str())
@ -30,21 +28,48 @@ fn main() {
.value_name("DIR")
.help("Data directory for keys and databases.")
.takes_value(true)
.default_value(DEFAULT_DATA_DIR),
)
// network related arguments
.arg(
Arg::with_name("listen-address")
.long("listen-address")
.value_name("Listen Address")
.help("One or more comma-delimited multi-addresses to listen for p2p connections.")
.value_name("Address")
.help("The address lighthouse will listen for UDP and TCP connections. (default 127.0.0.1).")
.takes_value(true),
)
.arg(
Arg::with_name("maxpeers")
.long("maxpeers")
.help("The maximum number of peers (default 10).")
.takes_value(true),
)
.arg(
Arg::with_name("boot-nodes")
.long("boot-nodes")
.allow_hyphen_values(true)
.value_name("BOOTNODES")
.help("One or more comma-delimited multi-addresses to bootstrap the p2p network.")
.help("One or more comma-delimited base64-encoded ENR's to bootstrap the p2p network.")
.takes_value(true),
)
.arg(
Arg::with_name("port")
.long("port")
.value_name("Lighthouse Port")
.help("The TCP/UDP port to listen on. The UDP port can be modified by the --discovery-port flag.")
.takes_value(true),
)
.arg(
Arg::with_name("discovery-port")
.long("disc-port")
.value_name("DiscoveryPort")
.help("The discovery UDP port.")
.takes_value(true),
)
.arg(
Arg::with_name("discovery-address")
.long("discovery-address")
.value_name("Address")
.help("The IP address to broadcast to other peers on how to reach this node.")
.takes_value(true),
)
// rpc related arguments
@ -58,14 +83,13 @@ fn main() {
.arg(
Arg::with_name("rpc-address")
.long("rpc-address")
.value_name("RPCADDRESS")
.value_name("Address")
.help("Listen address for RPC endpoint.")
.takes_value(true),
)
.arg(
Arg::with_name("rpc-port")
.long("rpc-port")
.value_name("RPCPORT")
.help("Listen port for RPC endpoint.")
.takes_value(true),
)
@ -73,21 +97,19 @@ fn main() {
.arg(
Arg::with_name("http")
.long("http")
.value_name("HTTP")
.help("Enable the HTTP server.")
.takes_value(false),
)
.arg(
Arg::with_name("http-address")
.long("http-address")
.value_name("HTTPADDRESS")
.value_name("Address")
.help("Listen address for the HTTP server.")
.takes_value(true),
)
.arg(
Arg::with_name("http-port")
.long("http-port")
.value_name("HTTPPORT")
.help("Listen port for the HTTP server.")
.takes_value(true),
)
@ -116,19 +138,60 @@ fn main() {
.short("r")
.help("When present, genesis will be within 30 minutes prior. Only for testing"),
)
.arg(
Arg::with_name("verbosity")
.short("v")
.multiple(true)
.help("Sets the verbosity level")
.takes_value(true),
)
.get_matches();
let data_dir = match get_data_dir(&matches, PathBuf::from(DEFAULT_DATA_DIR)) {
Ok(dir) => dir,
Err(e) => {
crit!(logger, "Failed to initialize data dir"; "error" => format!("{:?}", e));
return;
// build the initial logger
let decorator = slog_term::TermDecorator::new().build();
let drain = slog_term::CompactFormat::new(decorator).build().fuse();
let drain = slog_async::Async::new(drain).build();
let drain = match matches.occurrences_of("verbosity") {
0 => drain.filter_level(Level::Info),
1 => drain.filter_level(Level::Debug),
2 => drain.filter_level(Level::Trace),
_ => drain.filter_level(Level::Info),
};
let log = slog::Logger::root(drain.fuse(), o!());
let data_dir = match matches
.value_of("datadir")
.and_then(|v| Some(PathBuf::from(v)))
{
Some(v) => v,
None => {
// use the default
let mut default_dir = match dirs::home_dir() {
Some(v) => v,
None => {
crit!(log, "Failed to find a home directory");
return;
}
};
default_dir.push(DEFAULT_DATA_DIR);
PathBuf::from(default_dir)
}
};
// create the directory if needed
match fs::create_dir_all(&data_dir) {
Ok(_) => {}
Err(e) => {
crit!(log, "Failed to initialize data dir"; "error" => format!("{}", e));
return;
}
}
let client_config_path = data_dir.join(CLIENT_CONFIG_FILENAME);
// Attempt to lead the `ClientConfig` from disk.
// Attempt to load the `ClientConfig` from disk.
//
// If file doesn't exist, create a new, default one.
let mut client_config = match read_from_file::<ClientConfig>(client_config_path.clone()) {
@ -136,13 +199,13 @@ fn main() {
Ok(None) => {
let default = ClientConfig::default();
if let Err(e) = write_to_file(client_config_path, &default) {
crit!(logger, "Failed to write default ClientConfig to file"; "error" => format!("{:?}", e));
crit!(log, "Failed to write default ClientConfig to file"; "error" => format!("{:?}", e));
return;
}
default
}
Err(e) => {
crit!(logger, "Failed to load a ChainConfig file"; "error" => format!("{:?}", e));
crit!(log, "Failed to load a ChainConfig file"; "error" => format!("{:?}", e));
return;
}
};
@ -154,7 +217,7 @@ fn main() {
match client_config.apply_cli_args(&matches) {
Ok(()) => (),
Err(s) => {
crit!(logger, "Failed to parse ClientConfig CLI arguments"; "error" => s);
crit!(log, "Failed to parse ClientConfig CLI arguments"; "error" => s);
return;
}
};
@ -173,13 +236,13 @@ fn main() {
_ => unreachable!(), // Guarded by slog.
};
if let Err(e) = write_to_file(eth2_config_path, &default) {
crit!(logger, "Failed to write default Eth2Config to file"; "error" => format!("{:?}", e));
crit!(log, "Failed to write default Eth2Config to file"; "error" => format!("{:?}", e));
return;
}
default
}
Err(e) => {
crit!(logger, "Failed to load/generate an Eth2Config"; "error" => format!("{:?}", e));
crit!(log, "Failed to load/generate an Eth2Config"; "error" => format!("{:?}", e));
return;
}
};
@ -188,13 +251,13 @@ fn main() {
match eth2_config.apply_cli_args(&matches) {
Ok(()) => (),
Err(s) => {
crit!(logger, "Failed to parse Eth2Config CLI arguments"; "error" => s);
crit!(log, "Failed to parse Eth2Config CLI arguments"; "error" => s);
return;
}
};
match run::run_beacon_node(client_config, eth2_config, &logger) {
match run::run_beacon_node(client_config, eth2_config, &log) {
Ok(_) => {}
Err(e) => crit!(logger, "Beacon node failed to start"; "reason" => format!("{:}", e)),
Err(e) => crit!(log, "Beacon node failed to start"; "reason" => format!("{:}", e)),
}
}

20
beacon_node/src/run.rs
View File

@ -41,6 +41,15 @@ pub fn run_beacon_node(
"This software is EXPERIMENTAL and provides no guarantees or warranties."
);
info!(
log,
"Starting beacon node";
"p2p_listen_address" => format!("{:?}", &other_client_config.network.listen_address),
"data_dir" => format!("{:?}", other_client_config.data_dir()),
"spec_constants" => &spec_constants,
"db_type" => &other_client_config.db_type,
);
let result = match (db_type.as_str(), spec_constants.as_str()) {
("disk", "minimal") => run::<ClientType<DiskStore, MinimalEthSpec>>(
&db_path,
@ -80,17 +89,6 @@ pub fn run_beacon_node(
}
};
if result.is_ok() {
info!(
log,
"Started beacon node";
"p2p_listen_addresses" => format!("{:?}", &other_client_config.network.listen_addresses()),
"data_dir" => format!("{:?}", other_client_config.data_dir()),
"spec_constants" => &spec_constants,
"db_type" => &other_client_config.db_type,
);
}
result
}

4
beacon_node/store/Cargo.toml
View File

@ -14,7 +14,7 @@ bytes = "0.4.10"
db-key = "0.0.5"
leveldb = "0.8.4"
parking_lot = "0.7"
ssz = { path = "../../eth2/utils/ssz" }
ssz_derive = { path = "../../eth2/utils/ssz_derive" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz_derive = { path = "../../eth2/utils/ssz_derive" }
tree_hash = { path = "../../eth2/utils/tree_hash" }
types = { path = "../../eth2/types" }

3
beacon_node/store/src/iter.rs
View File

@ -139,8 +139,7 @@ impl<'a, T: EthSpec, U: Store> Iterator for BlockRootsIterator<'a, T, U> {
Err(BeaconStateError::SlotOutOfBounds) => {
// Read a `BeaconState` from the store that has access to prior historical root.
let beacon_state: BeaconState<T> = {
// Load the earlier state from disk. Skip forward one slot, because a state
// doesn't return it's own state root.
// Load the earliest state from disk.
let new_state_root = self.beacon_state.get_oldest_state_root().ok()?;
self.store.get(&new_state_root).ok()?

2
eth2/lmd_ghost/Cargo.toml
View File

@ -7,7 +7,7 @@ edition = "2018"
[dependencies]
parking_lot = "0.7"
store = { path = "../../beacon_node/store" }
ssz = { path = "../utils/ssz" }
eth2_ssz = { path = "../utils/ssz" }
state_processing = { path = "../state_processing" }
types = { path = "../types" }
log = "0.4.6"

4
eth2/operation_pool/Cargo.toml
View File

@ -5,9 +5,11 @@ authors = ["Michael Sproul <michael@sigmaprime.io>"]
edition = "2018"
[dependencies]
boolean-bitfield = { path = "../utils/boolean-bitfield" }
int_to_bytes = { path = "../utils/int_to_bytes" }
itertools = "0.8"
parking_lot = "0.7"
types = { path = "../types" }
state_processing = { path = "../state_processing" }
ssz = { path = "../utils/ssz" }
eth2_ssz = { path = "../utils/ssz" }
eth2_ssz_derive = { path = "../utils/ssz_derive" }

91
eth2/operation_pool/src/attestation.rs Normal file
View File

@ -0,0 +1,91 @@
use crate::max_cover::MaxCover;
use boolean_bitfield::BooleanBitfield;
use types::{Attestation, BeaconState, EthSpec};
pub struct AttMaxCover<'a> {
/// Underlying attestation.
att: &'a Attestation,
/// Bitfield of validators that are covered by this attestation.
fresh_validators: BooleanBitfield,
}
impl<'a> AttMaxCover<'a> {
pub fn new(att: &'a Attestation, fresh_validators: BooleanBitfield) -> Self {
Self {
att,
fresh_validators,
}
}
}
impl<'a> MaxCover for AttMaxCover<'a> {
type Object = Attestation;
type Set = BooleanBitfield;
fn object(&self) -> Attestation {
self.att.clone()
}
fn covering_set(&self) -> &BooleanBitfield {
&self.fresh_validators
}
/// Sneaky: we keep all the attestations together in one bucket, even though
/// their aggregation bitfields refer to different committees. In order to avoid
/// confusing committees when updating covering sets, we update only those attestations
/// whose shard and epoch match the attestation being included in the solution, by the logic
/// that a shard and epoch uniquely identify a committee.
fn update_covering_set(
&mut self,
best_att: &Attestation,
covered_validators: &BooleanBitfield,
) {
if self.att.data.shard == best_att.data.shard
&& self.att.data.target_epoch == best_att.data.target_epoch
{
self.fresh_validators.difference_inplace(covered_validators);
}
}
fn score(&self) -> usize {
self.fresh_validators.num_set_bits()
}
}
/// Extract the validators for which `attestation` would be their earliest in the epoch.
///
/// The reward paid to a proposer for including an attestation is proportional to the number
/// of validators for which the included attestation is their first in the epoch. The attestation
/// is judged against the state's `current_epoch_attestations` or `previous_epoch_attestations`
/// depending on when it was created, and all those validators who have already attested are
/// removed from the `aggregation_bitfield` before returning it.
// TODO: This could be optimised with a map from validator index to whether that validator has
// attested in each of the current and previous epochs. Currently quadratic in number of validators.
pub fn earliest_attestation_validators<T: EthSpec>(
attestation: &Attestation,
state: &BeaconState<T>,
) -> BooleanBitfield {
// Bitfield of validators whose attestations are new/fresh.
let mut new_validators = attestation.aggregation_bitfield.clone();
let state_attestations = if attestation.data.target_epoch == state.current_epoch() {
&state.current_epoch_attestations
} else if attestation.data.target_epoch == state.previous_epoch() {
&state.previous_epoch_attestations
} else {
return BooleanBitfield::from_elem(attestation.aggregation_bitfield.len(), false);
};
state_attestations
.iter()
// In a single epoch, an attester should only be attesting for one shard.
// TODO: we avoid including slashable attestations in the state here,
// but maybe we should do something else with them (like construct slashings).
.filter(|existing_attestation| existing_attestation.data.shard == attestation.data.shard)
.for_each(|existing_attestation| {
// Remove the validators who have signed the existing attestation (they are not new)
new_validators.difference_inplace(&existing_attestation.aggregation_bitfield);
});
new_validators
}

38
eth2/operation_pool/src/attestation_id.rs Normal file
View File

@ -0,0 +1,38 @@
use int_to_bytes::int_to_bytes8;
use ssz::ssz_encode;
use ssz_derive::{Decode, Encode};
use types::{AttestationData, BeaconState, ChainSpec, Domain, Epoch, EthSpec};
/// Serialized `AttestationData` augmented with a domain to encode the fork info.
#[derive(PartialEq, Eq, Clone, Hash, Debug, PartialOrd, Ord, Encode, Decode)]
pub struct AttestationId {
v: Vec<u8>,
}
/// Number of domain bytes that the end of an attestation ID is padded with.
const DOMAIN_BYTES_LEN: usize = 8;
impl AttestationId {
pub fn from_data<T: EthSpec>(
attestation: &AttestationData,
state: &BeaconState<T>,
spec: &ChainSpec,
) -> Self {
let mut bytes = ssz_encode(attestation);
let epoch = attestation.target_epoch;
bytes.extend_from_slice(&AttestationId::compute_domain_bytes(epoch, state, spec));
AttestationId { v: bytes }
}
pub fn compute_domain_bytes<T: EthSpec>(
epoch: Epoch,
state: &BeaconState<T>,
spec: &ChainSpec,
) -> Vec<u8> {
int_to_bytes8(spec.get_domain(epoch, Domain::Attestation, &state.fork))
}
pub fn domain_bytes_match(&self, domain_bytes: &[u8]) -> bool {
&self.v[self.v.len() - DOMAIN_BYTES_LEN..] == domain_bytes
}
}

196
eth2/operation_pool/src/lib.rs
View File

@ -1,13 +1,19 @@
use int_to_bytes::int_to_bytes8;
mod attestation;
mod attestation_id;
mod max_cover;
mod persistence;
pub use persistence::PersistedOperationPool;
use attestation::{earliest_attestation_validators, AttMaxCover};
use attestation_id::AttestationId;
use itertools::Itertools;
use max_cover::maximum_cover;
use parking_lot::RwLock;
use ssz::ssz_encode;
use state_processing::per_block_processing::errors::{
AttestationValidationError, AttesterSlashingValidationError, DepositValidationError,
ExitValidationError, ProposerSlashingValidationError, TransferValidationError,
};
#[cfg(not(test))]
use state_processing::per_block_processing::verify_deposit_merkle_proof;
use state_processing::per_block_processing::{
get_slashable_indices_modular, validate_attestation,
validate_attestation_time_independent_only, verify_attester_slashing, verify_exit,
@ -16,13 +22,12 @@ use state_processing::per_block_processing::{
};
use std::collections::{btree_map::Entry, hash_map, BTreeMap, HashMap, HashSet};
use std::marker::PhantomData;
use types::chain_spec::Domain;
use types::{
Attestation, AttestationData, AttesterSlashing, BeaconState, ChainSpec, Deposit, Epoch,
EthSpec, ProposerSlashing, Transfer, Validator, VoluntaryExit,
Attestation, AttesterSlashing, BeaconState, ChainSpec, Deposit, EthSpec, ProposerSlashing,
Transfer, Validator, VoluntaryExit,
};
#[derive(Default)]
#[derive(Default, Debug)]
pub struct OperationPool<T: EthSpec + Default> {
/// Map from attestation ID (see below) to vectors of attestations.
attestations: RwLock<HashMap<AttestationId, Vec<Attestation>>>,
@ -43,71 +48,6 @@ pub struct OperationPool<T: EthSpec + Default> {
_phantom: PhantomData<T>,
}
/// Serialized `AttestationData` augmented with a domain to encode the fork info.
#[derive(PartialEq, Eq, Clone, Hash, Debug)]
struct AttestationId(Vec<u8>);
/// Number of domain bytes that the end of an attestation ID is padded with.
const DOMAIN_BYTES_LEN: usize = 8;
impl AttestationId {
fn from_data<T: EthSpec>(
attestation: &AttestationData,
state: &BeaconState<T>,
spec: &ChainSpec,
) -> Self {
let mut bytes = ssz_encode(attestation);
let epoch = attestation.target_epoch;
bytes.extend_from_slice(&AttestationId::compute_domain_bytes(epoch, state, spec));
AttestationId(bytes)
}
fn compute_domain_bytes<T: EthSpec>(
epoch: Epoch,
state: &BeaconState<T>,
spec: &ChainSpec,
) -> Vec<u8> {
int_to_bytes8(spec.get_domain(epoch, Domain::Attestation, &state.fork))
}
fn domain_bytes_match(&self, domain_bytes: &[u8]) -> bool {
&self.0[self.0.len() - DOMAIN_BYTES_LEN..] == domain_bytes
}
}
/// Compute a fitness score for an attestation.
///
/// The score is calculated by determining the number of *new* attestations that
/// the aggregate attestation introduces, and is proportional to the size of the reward we will
/// receive for including it in a block.
// TODO: this could be optimised with a map from validator index to whether that validator has
// attested in each of the current and previous epochs. Currently quadractic in number of validators.
fn attestation_score<T: EthSpec>(attestation: &Attestation, state: &BeaconState<T>) -> usize {
// Bitfield of validators whose attestations are new/fresh.
let mut new_validators = attestation.aggregation_bitfield.clone();
let state_attestations = if attestation.data.target_epoch == state.current_epoch() {
&state.current_epoch_attestations
} else if attestation.data.target_epoch == state.previous_epoch() {
&state.previous_epoch_attestations
} else {
return 0;
};
state_attestations
.iter()
// In a single epoch, an attester should only be attesting for one shard.
// TODO: we avoid including slashable attestations in the state here,
// but maybe we should do something else with them (like construct slashings).
.filter(|current_attestation| current_attestation.data.shard == attestation.data.shard)
.for_each(|current_attestation| {
// Remove the validators who have signed the existing attestation (they are not new)
new_validators.difference_inplace(&current_attestation.aggregation_bitfield);
});
new_validators.num_set_bits()
}
#[derive(Debug, PartialEq, Clone)]
pub enum DepositInsertStatus {
/// The deposit was not already in the pool.
@ -176,29 +116,19 @@ impl<T: EthSpec> OperationPool<T> {
let current_epoch = state.current_epoch();
let prev_domain_bytes = AttestationId::compute_domain_bytes(prev_epoch, state, spec);
let curr_domain_bytes = AttestationId::compute_domain_bytes(current_epoch, state, spec);
self.attestations
.read()
let reader = self.attestations.read();
let valid_attestations = reader
.iter()
.filter(|(key, _)| {
key.domain_bytes_match(&prev_domain_bytes)
|| key.domain_bytes_match(&curr_domain_bytes)
})
.flat_map(|(_, attestations)| attestations)
// That are not superseded by an attestation included in the state...
.filter(|attestation| !superior_attestation_exists_in_state(state, attestation))
// That are valid...
.filter(|attestation| validate_attestation(state, attestation, spec).is_ok())
// Scored by the number of new attestations they introduce (descending)
// TODO: need to consider attestations introduced in THIS block
.map(|att| (att, attestation_score(att, state)))
// Don't include any useless attestations (score 0)
.filter(|&(_, score)| score != 0)
.sorted_by_key(|&(_, score)| std::cmp::Reverse(score))
// Limited to the maximum number of attestations per block
.take(spec.max_attestations as usize)
.map(|(att, _)| att)
.cloned()
.collect()
.map(|att| AttMaxCover::new(att, earliest_attestation_validators(att, state)));
maximum_cover(valid_attestations, spec.max_attestations as usize)
}
/// Remove attestations which are too old to be included in a block.
@ -219,20 +149,14 @@ impl<T: EthSpec> OperationPool<T> {
/// Add a deposit to the pool.
///
/// No two distinct deposits should be added with the same index.
#[cfg_attr(test, allow(unused_variables))]
pub fn insert_deposit(
&self,
deposit: Deposit,
state: &BeaconState<T>,
spec: &ChainSpec,
) -> Result<DepositInsertStatus, DepositValidationError> {
use DepositInsertStatus::*;
match self.deposits.write().entry(deposit.index) {
Entry::Vacant(entry) => {
// TODO: fix tests to generate valid merkle proofs
#[cfg(not(test))]
verify_deposit_merkle_proof(state, &deposit, spec)?;
entry.insert(deposit);
Ok(Fresh)
}
@ -240,9 +164,6 @@ impl<T: EthSpec> OperationPool<T> {
if entry.get() == &deposit {
Ok(Duplicate)
} else {
// TODO: fix tests to generate valid merkle proofs
#[cfg(not(test))]
verify_deposit_merkle_proof(state, &deposit, spec)?;
Ok(Replaced(Box::new(entry.insert(deposit))))
}
}
@ -253,7 +174,9 @@ impl<T: EthSpec> OperationPool<T> {
///
/// Take at most the maximum number of deposits, beginning from the current deposit index.
pub fn get_deposits(&self, state: &BeaconState<T>, spec: &ChainSpec) -> Vec<Deposit> {
// TODO: might want to re-check the Merkle proof to account for Eth1 forking
// TODO: We need to update the Merkle proofs for existing deposits as more deposits
// are added. It probably makes sense to construct the proofs from scratch when forming
// a block, using fresh info from the ETH1 chain for the current deposit root.
let start_idx = state.deposit_index;
(start_idx..start_idx + spec.max_deposits)
.map(|idx| self.deposits.read().get(&idx).cloned())
@ -484,34 +407,6 @@ impl<T: EthSpec> OperationPool<T> {
}
}
/// Returns `true` if the state already contains a `PendingAttestation` that is superior to the
/// given `attestation`.
///
/// A validator has nothing to gain from re-including an attestation and it adds load to the
/// network.
///
/// An existing `PendingAttestation` is superior to an existing `attestation` if:
///
/// - Their `AttestationData` is equal.
/// - `attestation` does not contain any signatures that `PendingAttestation` does not have.
fn superior_attestation_exists_in_state<T: EthSpec>(
state: &BeaconState<T>,
attestation: &Attestation,
) -> bool {
state
.current_epoch_attestations
.iter()
.chain(state.previous_epoch_attestations.iter())
.any(|existing_attestation| {
let bitfield = &attestation.aggregation_bitfield;
let existing_bitfield = &existing_attestation.aggregation_bitfield;
existing_attestation.data == attestation.data
&& bitfield.intersection(existing_bitfield).num_set_bits()
== bitfield.num_set_bits()
})
}
/// Filter up to a maximum number of operations out of an iterator.
fn filter_limit_operations<'a, T: 'a, I, F>(operations: I, filter: F, limit: u64) -> Vec<T>
where
@ -547,6 +442,18 @@ fn prune_validator_hash_map<T, F, E: EthSpec>(
});
}
/// Compare two operation pools.
impl<T: EthSpec + Default> PartialEq for OperationPool<T> {
fn eq(&self, other: &Self) -> bool {
*self.attestations.read() == *other.attestations.read()
&& *self.deposits.read() == *other.deposits.read()
&& *self.attester_slashings.read() == *other.attester_slashings.read()
&& *self.proposer_slashings.read() == *other.proposer_slashings.read()
&& *self.voluntary_exits.read() == *other.voluntary_exits.read()
&& *self.transfers.read() == *other.transfers.read()
}
}
#[cfg(test)]
mod tests {
use super::DepositInsertStatus::*;
@ -557,22 +464,15 @@ mod tests {
#[test]
fn insert_deposit() {
let rng = &mut XorShiftRng::from_seed([42; 16]);
let (ref spec, ref state) = test_state(rng);
let op_pool = OperationPool::new();
let op_pool = OperationPool::<MinimalEthSpec>::new();
let deposit1 = make_deposit(rng);
let mut deposit2 = make_deposit(rng);
deposit2.index = deposit1.index;
assert_eq!(op_pool.insert_deposit(deposit1.clone()), Ok(Fresh));
assert_eq!(op_pool.insert_deposit(deposit1.clone()), Ok(Duplicate));
assert_eq!(
op_pool.insert_deposit(deposit1.clone(), state, spec),
Ok(Fresh)
);
assert_eq!(
op_pool.insert_deposit(deposit1.clone(), state, spec),
Ok(Duplicate)
);
assert_eq!(
op_pool.insert_deposit(deposit2, state, spec),
op_pool.insert_deposit(deposit2),
Ok(Replaced(Box::new(deposit1)))
);
}
@ -591,10 +491,7 @@ mod tests {
let deposits = dummy_deposits(rng, start, max_deposits + extra);
for deposit in &deposits {
assert_eq!(
op_pool.insert_deposit(deposit.clone(), &state, &spec),
Ok(Fresh)
);
assert_eq!(op_pool.insert_deposit(deposit.clone()), Ok(Fresh));
}
state.deposit_index = start + offset;
@ -610,8 +507,7 @@ mod tests {
#[test]
fn prune_deposits() {
let rng = &mut XorShiftRng::from_seed([42; 16]);
let (spec, state) = test_state(rng);
let op_pool = OperationPool::new();
let op_pool = OperationPool::<MinimalEthSpec>::new();
let start1 = 100;
// test is super slow in debug mode if this parameter is too high
@ -623,7 +519,7 @@ mod tests {
let deposits2 = dummy_deposits(rng, start2, count);
for d in deposits1.into_iter().chain(deposits2) {
assert!(op_pool.insert_deposit(d, &state, &spec).is_ok());
assert!(op_pool.insert_deposit(d).is_ok());
}
assert_eq!(op_pool.num_deposits(), 2 * count as usize);
@ -734,15 +630,13 @@ mod tests {
state_builder.teleport_to_slot(slot);
state_builder.build_caches(&spec).unwrap();
let (state, keypairs) = state_builder.build();
(state, keypairs, MainnetEthSpec::default_spec())
}
#[test]
fn test_attestation_score() {
fn test_earliest_attestation() {
let (ref mut state, ref keypairs, ref spec) =
attestation_test_state::<MainnetEthSpec>(1);
let slot = state.slot - 1;
let committees = state
.get_crosslink_committees_at_slot(slot)
@ -775,9 +669,8 @@ mod tests {
assert_eq!(
att1.aggregation_bitfield.num_set_bits(),
attestation_score(&att1, state)
earliest_attestation_validators(&att1, state).num_set_bits()
);
state.current_epoch_attestations.push(PendingAttestation {
aggregation_bitfield: att1.aggregation_bitfield.clone(),
data: att1.data.clone(),
@ -785,7 +678,10 @@ mod tests {
proposer_index: 0,
});
assert_eq!(cc.committee.len() - 2, attestation_score(&att2, state));
assert_eq!(
cc.committee.len() - 2,
earliest_attestation_validators(&att2, state).num_set_bits()
);
}
}

189
eth2/operation_pool/src/max_cover.rs Normal file
View File

@ -0,0 +1,189 @@
/// Trait for types that we can compute a maximum cover for.
///
/// Terminology:
/// * `item`: something that implements this trait
/// * `element`: something contained in a set, and covered by the covering set of an item
/// * `object`: something extracted from an item in order to comprise a solution
/// See: https://en.wikipedia.org/wiki/Maximum_coverage_problem
pub trait MaxCover {
/// The result type, of which we would eventually like a collection of maximal quality.
type Object;
/// The type used to represent sets.
type Set: Clone;
/// Extract an object for inclusion in a solution.
fn object(&self) -> Self::Object;
/// Get the set of elements covered.
fn covering_set(&self) -> &Self::Set;
/// Update the set of items covered, for the inclusion of some object in the solution.
fn update_covering_set(&mut self, max_obj: &Self::Object, max_set: &Self::Set);
/// The quality of this item's covering set, usually its cardinality.
fn score(&self) -> usize;
}
/// Helper struct to track which items of the input are still available for inclusion.
/// Saves removing elements from the work vector.
struct MaxCoverItem<T> {
item: T,
available: bool,
}
impl<T> MaxCoverItem<T> {
fn new(item: T) -> Self {
MaxCoverItem {
item,
available: true,
}
}
}
/// Compute an approximate maximum cover using a greedy algorithm.
///
/// * Time complexity: `O(limit * items_iter.len())`
/// * Space complexity: `O(item_iter.len())`
pub fn maximum_cover<'a, I, T>(items_iter: I, limit: usize) -> Vec<T::Object>
where
I: IntoIterator<Item = T>,
T: MaxCover,
{
// Construct an initial vec of all items, marked available.
let mut all_items: Vec<_> = items_iter
.into_iter()
.map(MaxCoverItem::new)
.filter(|x| x.item.score() != 0)
.collect();
let mut result = vec![];
for _ in 0..limit {
// Select the item with the maximum score.
let (best_item, best_cover) = match all_items
.iter_mut()
.filter(|x| x.available && x.item.score() != 0)
.max_by_key(|x| x.item.score())
{
Some(x) => {
x.available = false;
(x.item.object(), x.item.covering_set().clone())
}
None => return result,
};
// Update the covering sets of the other items, for the inclusion of the selected item.
// Items covered by the selected item can't be re-covered.
all_items
.iter_mut()
.filter(|x| x.available && x.item.score() != 0)
.for_each(|x| x.item.update_covering_set(&best_item, &best_cover));
result.push(best_item);
}
result
}
#[cfg(test)]
mod test {
use super::*;
use std::iter::FromIterator;
use std::{collections::HashSet, hash::Hash};
impl<T> MaxCover for HashSet<T>
where
T: Clone + Eq + Hash,
{
type Object = Self;
type Set = Self;
fn object(&self) -> Self {
self.clone()
}
fn covering_set(&self) -> &Self {
&self
}
fn update_covering_set(&mut self, _: &Self, other: &Self) {
let mut difference = &*self - other;
std::mem::swap(self, &mut difference);
}
fn score(&self) -> usize {
self.len()
}
}
fn example_system() -> Vec<HashSet<usize>> {
vec![
HashSet::from_iter(vec![3]),
HashSet::from_iter(vec![1, 2, 4, 5]),
HashSet::from_iter(vec![1, 2, 4, 5]),
HashSet::from_iter(vec![1]),
HashSet::from_iter(vec![2, 4, 5]),
]
}
#[test]
fn zero_limit() {
let cover = maximum_cover(example_system(), 0);
assert_eq!(cover.len(), 0);
}
#[test]
fn one_limit() {
let sets = example_system();
let cover = maximum_cover(sets.clone(), 1);
assert_eq!(cover.len(), 1);
assert_eq!(cover[0], sets[1]);
}
// Check that even if the limit provides room, we don't include useless items in the soln.
#[test]
fn exclude_zero_score() {
let sets = example_system();
for k in 2..10 {
let cover = maximum_cover(sets.clone(), k);
assert_eq!(cover.len(), 2);
assert_eq!(cover[0], sets[1]);
assert_eq!(cover[1], sets[0]);
}
}
fn quality<T: Eq + Hash>(solution: &[HashSet<T>]) -> usize {
solution.iter().map(HashSet::len).sum()
}
// Optimal solution is the first three sets (quality 15) but our greedy algorithm
// will select the last three (quality 11). The comment at the end of each line
// shows that set's score at each iteration, with a * indicating that it will be chosen.
#[test]
fn suboptimal() {
let sets = vec![
HashSet::from_iter(vec![0, 1, 8, 11, 14]), // 5, 3, 2
HashSet::from_iter(vec![2, 3, 7, 9, 10]), // 5, 3, 2
HashSet::from_iter(vec![4, 5, 6, 12, 13]), // 5, 4, 2
HashSet::from_iter(vec![9, 10]), // 4, 4, 2*
HashSet::from_iter(vec![5, 6, 7, 8]), // 4, 4*
HashSet::from_iter(vec![0, 1, 2, 3, 4]), // 5*
];
let cover = maximum_cover(sets.clone(), 3);
assert_eq!(quality(&cover), 11);
}
#[test]
fn intersecting_ok() {
let sets = vec![
HashSet::from_iter(vec![1, 2, 3, 4, 5, 6, 7, 8]),
HashSet::from_iter(vec![1, 2, 3, 9, 10, 11]),
HashSet::from_iter(vec![4, 5, 6, 12, 13, 14]),
HashSet::from_iter(vec![7, 8, 15, 16, 17, 18]),
HashSet::from_iter(vec![1, 2, 9, 10]),
HashSet::from_iter(vec![1, 5, 6, 8]),
HashSet::from_iter(vec![1, 7, 11, 19]),
];
let cover = maximum_cover(sets.clone(), 5);
assert_eq!(quality(&cover), 19);
assert_eq!(cover.len(), 5);
}
}

121
eth2/operation_pool/src/persistence.rs Normal file
View File

@ -0,0 +1,121 @@
use crate::attestation_id::AttestationId;
use crate::OperationPool;
use parking_lot::RwLock;
use ssz_derive::{Decode, Encode};
use types::*;
/// SSZ-serializable version of `OperationPool`.
///
/// Operations are stored in arbitrary order, so it's not a good idea to compare instances
/// of this type (or its encoded form) for equality. Convert back to an `OperationPool` first.
#[derive(Encode, Decode)]
pub struct PersistedOperationPool {
/// Mapping from attestation ID to attestation mappings.
// We could save space by not storing the attestation ID, but it might
// be difficult to make that roundtrip due to eager aggregation.
attestations: Vec<(AttestationId, Vec<Attestation>)>,
deposits: Vec<Deposit>,
/// Attester slashings.
attester_slashings: Vec<AttesterSlashing>,
/// Proposer slashings.
proposer_slashings: Vec<ProposerSlashing>,
/// Voluntary exits.
voluntary_exits: Vec<VoluntaryExit>,
/// Transfers.
transfers: Vec<Transfer>,
}
impl PersistedOperationPool {
/// Convert an `OperationPool` into serializable form.
pub fn from_operation_pool<T: EthSpec>(operation_pool: &OperationPool<T>) -> Self {
let attestations = operation_pool
.attestations
.read()
.iter()
.map(|(att_id, att)| (att_id.clone(), att.clone()))
.collect();
let deposits = operation_pool
.deposits
.read()
.iter()
.map(|(_, d)| d.clone())
.collect();
let attester_slashings = operation_pool
.attester_slashings
.read()
.iter()
.map(|(_, slashing)| slashing.clone())
.collect();
let proposer_slashings = operation_pool
.proposer_slashings
.read()
.iter()
.map(|(_, slashing)| slashing.clone())
.collect();
let voluntary_exits = operation_pool
.voluntary_exits
.read()
.iter()
.map(|(_, exit)| exit.clone())
.collect();
let transfers = operation_pool.transfers.read().iter().cloned().collect();
Self {
attestations,
deposits,
attester_slashings,
proposer_slashings,
voluntary_exits,
transfers,
}
}
/// Reconstruct an `OperationPool`.
pub fn into_operation_pool<T: EthSpec>(
self,
state: &BeaconState<T>,
spec: &ChainSpec,
) -> OperationPool<T> {
let attestations = RwLock::new(self.attestations.into_iter().collect());
let deposits = RwLock::new(self.deposits.into_iter().map(|d| (d.index, d)).collect());
let attester_slashings = RwLock::new(
self.attester_slashings
.into_iter()
.map(|slashing| {
(
OperationPool::attester_slashing_id(&slashing, state, spec),
slashing,
)
})
.collect(),
);
let proposer_slashings = RwLock::new(
self.proposer_slashings
.into_iter()
.map(|slashing| (slashing.proposer_index, slashing))
.collect(),
);
let voluntary_exits = RwLock::new(
self.voluntary_exits
.into_iter()
.map(|exit| (exit.validator_index, exit))
.collect(),
);
let transfers = RwLock::new(self.transfers.into_iter().collect());
OperationPool {
attestations,
deposits,
attester_slashings,
proposer_slashings,
voluntary_exits,
transfers,
_phantom: Default::default(),
}
}
}

6
eth2/state_processing/Cargo.toml
View File

@ -24,12 +24,12 @@ integer-sqrt = "0.1"
itertools = "0.8"
log = "0.4"
merkle_proof = { path = "../utils/merkle_proof" }
ssz = { path = "../utils/ssz" }
ssz_derive = { path = "../utils/ssz_derive" }
eth2_ssz = { path = "../utils/ssz" }
eth2_ssz_derive = { path = "../utils/ssz_derive" }
tree_hash = { path = "../utils/tree_hash" }
tree_hash_derive = { path = "../utils/tree_hash_derive" }
types = { path = "../types" }
rayon = "1.0"
[features]
fake_crypto = ["bls/fake_crypto"]
fake_crypto = ["bls/fake_crypto"]

5
eth2/types/Cargo.toml
View File

@ -26,13 +26,12 @@ serde_derive = "1.0"
serde_json = "1.0"
serde_yaml = "0.8"
slog = "^2.2.3"
ssz = { path = "../utils/ssz" }
ssz_derive = { path = "../utils/ssz_derive" }
eth2_ssz = { path = "../utils/ssz" }
eth2_ssz_derive = { path = "../utils/ssz_derive" }
swap_or_not_shuffle = { path = "../utils/swap_or_not_shuffle" }
test_random_derive = { path = "../utils/test_random_derive" }
tree_hash = { path = "../utils/tree_hash" }
tree_hash_derive = { path = "../utils/tree_hash_derive" }
libp2p = { git = "https://github.com/SigP/rust-libp2p", rev = "b3c32d9a821ae6cc89079499cc6e8a6bab0bffc3" }
[dev-dependencies]
env_logger = "0.6.0"

16
eth2/types/src/chain_spec.rs
View File

@ -104,11 +104,7 @@ pub struct ChainSpec {
domain_voluntary_exit: u32,
domain_transfer: u32,
/*
* Network specific parameters
*
*/
pub boot_nodes: Vec<Multiaddr>,
pub boot_nodes: Vec<String>,
pub chain_id: u8,
}
@ -216,7 +212,7 @@ impl ChainSpec {
domain_transfer: 5,
/*
* Boot nodes
* Network specific
*/
boot_nodes: vec![],
chain_id: 1, // mainnet chain id
@ -231,12 +227,8 @@ impl ChainSpec {
pub fn minimal() -> Self {
let genesis_slot = Slot::new(0);
// Note: these bootnodes are placeholders.
//
// Should be updated once static bootnodes exist.
let boot_nodes = vec!["/ip4/127.0.0.1/tcp/9000"
.parse()
.expect("correct multiaddr")];
// Note: bootnodes to be updated when static nodes exist.
let boot_nodes = vec![];
Self {
target_committee_size: 4,

3
eth2/types/src/lib.rs
View File

@ -82,6 +82,3 @@ pub type ProposerMap = HashMap<u64, usize>;
pub use bls::{AggregatePublicKey, AggregateSignature, Keypair, PublicKey, SecretKey, Signature};
pub use fixed_len_vec::{typenum, typenum::Unsigned, FixedLenVec};
pub use libp2p::floodsub::{Topic, TopicBuilder, TopicHash};
pub use libp2p::multiaddr;
pub use libp2p::Multiaddr;

2
eth2/utils/bls/Cargo.toml
View File

@ -13,7 +13,7 @@ rand = "^0.5"
serde = "1.0"
serde_derive = "1.0"
serde_hex = { path = "../serde_hex" }
ssz = { path = "../ssz" }
eth2_ssz = { path = "../ssz" }
tree_hash = { path = "../tree_hash" }
[features]

2
eth2/utils/boolean-bitfield/Cargo.toml
View File

@ -7,7 +7,7 @@ edition = "2018"
[dependencies]
cached_tree_hash = { path = "../cached_tree_hash" }
serde_hex = { path = "../serde_hex" }
ssz = { path = "../ssz" }
eth2_ssz = { path = "../ssz" }
bit-vec = "0.5.0"
bit_reverse = "0.1"
serde = "1.0"

2
eth2/utils/boolean-bitfield/fuzz/Cargo.toml
View File

@ -9,7 +9,7 @@ publish = false
cargo-fuzz = true
[dependencies]
ssz = { path = "../../ssz" }
eth2_ssz = { path = "../../ssz" }
[dependencies.boolean-bitfield]
path = ".."

3
eth2/utils/boolean-bitfield/src/lib.rs
View File

@ -13,7 +13,7 @@ use std::default;
/// A BooleanBitfield represents a set of booleans compactly stored as a vector of bits.
/// The BooleanBitfield is given a fixed size during construction. Reads outside of the current size return an out-of-bounds error. Writes outside of the current size expand the size of the set.
#[derive(Debug, Clone)]
#[derive(Debug, Clone, Hash)]
pub struct BooleanBitfield(BitVec);
/// Error represents some reason a request against a bitfield was not satisfied
@ -170,6 +170,7 @@ impl cmp::PartialEq for BooleanBitfield {
ssz::ssz_encode(self) == ssz::ssz_encode(other)
}
}
impl Eq for BooleanBitfield {}
/// Create a new bitfield that is a union of two other bitfields.
///

13
eth2/utils/eth2_config/src/lib.rs
View File

@ -1,6 +1,5 @@
use clap::ArgMatches;
use serde_derive::{Deserialize, Serialize};
use std::fs;
use std::fs::File;
use std::io::prelude::*;
use std::path::PathBuf;
@ -105,15 +104,3 @@ where
Ok(None)
}
}
pub fn get_data_dir(args: &ArgMatches, default_data_dir: PathBuf) -> Result<PathBuf, &'static str> {
if let Some(data_dir) = args.value_of("data_dir") {
Ok(PathBuf::from(data_dir))
} else {
let path = dirs::home_dir()
.ok_or_else(|| "Unable to locate home directory")?
.join(&default_data_dir);
fs::create_dir_all(&path).map_err(|_| "Unable to create data_dir")?;
Ok(path)
}
}

2
eth2/utils/fixed_len_vec/Cargo.toml
View File

@ -9,5 +9,5 @@ cached_tree_hash = { path = "../cached_tree_hash" }
tree_hash = { path = "../tree_hash" }
serde = "1.0"
serde_derive = "1.0"
ssz = { path = "../ssz" }
eth2_ssz = { path = "../ssz" }
typenum = "1.10"

2
eth2/utils/hashing/.cargo/config Normal file
View File

@ -0,0 +1,2 @@
[target.wasm32-unknown-unknown]
runner = 'wasm-bindgen-test-runner'

11
eth2/utils/hashing/Cargo.toml
View File

@ -4,5 +4,14 @@ version = "0.1.0"
authors = ["Paul Hauner <paul@paulhauner.com>"]
edition = "2018"
[dependencies]
[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
ring = "0.14.6"
[target.'cfg(target_arch = "wasm32")'.dependencies]
sha2 = "0.8.0"
[dev-dependencies]
rustc-hex = "2.0.1"
[target.'cfg(target_arch = "wasm32")'.dev-dependencies]
wasm-bindgen-test = "0.2.47"

33
eth2/utils/hashing/src/lib.rs
View File

@ -1,7 +1,17 @@
#[cfg(not(target_arch = "wasm32"))]
use ring::digest::{digest, SHA256};
#[cfg(target_arch = "wasm32")]
use sha2::{Digest, Sha256};
pub fn hash(input: &[u8]) -> Vec<u8> {
digest(&SHA256, input).as_ref().into()
#[cfg(not(target_arch = "wasm32"))]
let h = digest(&SHA256, input).as_ref().into();
#[cfg(target_arch = "wasm32")]
let h = Sha256::digest(input).as_ref().into();
h
}
/// Get merkle root of some hashed values - the input leaf nodes is expected to already be hashed
@ -37,19 +47,24 @@ pub fn merkle_root(values: &[Vec<u8>]) -> Option<Vec<u8>> {
#[cfg(test)]
mod tests {
use super::*;
use ring::test;
use rustc_hex::FromHex;
#[test]
#[cfg(target_arch = "wasm32")]
use wasm_bindgen_test::*;
#[cfg_attr(not(target_arch = "wasm32"), test)]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn test_hashing() {
let input: Vec<u8> = b"hello world".as_ref().into();
let output = hash(input.as_ref());
let expected_hex = "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9";
let expected: Vec<u8> = test::from_hex(expected_hex).unwrap();
let expected: Vec<u8> = expected_hex.from_hex().unwrap();
assert_eq!(expected, output);
}
#[test]
#[cfg_attr(not(target_arch = "wasm32"), test)]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn test_merkle_root() {
// hash the leaf nodes
let mut input = vec![
@ -79,13 +94,17 @@ mod tests {
assert_eq!(&expected[..], output.unwrap().as_slice());
}
#[test]
#[cfg_attr(not(target_arch = "wasm32"), test)]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn test_empty_input_merkle_root() {
let input = vec![];
let output = merkle_root(&input[..]);
assert_eq!(None, output);
}
#[test]
#[cfg_attr(not(target_arch = "wasm32"), test)]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn test_odd_leaf_merkle_root() {
let input = vec![
hash("a".as_bytes()),

10
eth2/utils/ssz/Cargo.toml
View File

@ -1,8 +1,12 @@
[package]
name = "ssz"
name = "eth2_ssz"
version = "0.1.0"
authors = ["Paul Hauner <paul@paulhauner.com>"]
authors = ["Paul Hauner <paul@sigmaprime.io>"]
edition = "2018"
description = "SimpleSerialize (SSZ) as used in Ethereum 2.0"
[lib]
name = "ssz"
[[bench]]
name = "benches"
@ -10,7 +14,7 @@ harness = false
[dev-dependencies]
criterion = "0.2"
ssz_derive = { path = "../ssz_derive" }
eth2_ssz_derive = { path = "../ssz_derive" }
[dependencies]
bytes = "0.4.9"

163
eth2/utils/ssz/src/decode/impls.rs
View File

@ -34,8 +34,160 @@ impl_decodable_for_uint!(u8, 8);
impl_decodable_for_uint!(u16, 16);
impl_decodable_for_uint!(u32, 32);
impl_decodable_for_uint!(u64, 64);
#[cfg(target_pointer_width = "32")]
impl_decodable_for_uint!(usize, 32);
#[cfg(target_pointer_width = "64")]
impl_decodable_for_uint!(usize, 64);
macro_rules! impl_decode_for_tuples {
($(
$Tuple:ident {
$(($idx:tt) -> $T:ident)+
}
)+) => {
$(
impl<$($T: Decode),+> Decode for ($($T,)+) {
fn is_ssz_fixed_len() -> bool {
$(
<$T as Decode>::is_ssz_fixed_len() &&
)*
true
}
fn ssz_fixed_len() -> usize {
if <Self as Decode>::is_ssz_fixed_len() {
$(
<$T as Decode>::ssz_fixed_len() +
)*
0
} else {
BYTES_PER_LENGTH_OFFSET
}
}
fn from_ssz_bytes(bytes: &[u8]) -> Result<Self, DecodeError> {
let mut builder = SszDecoderBuilder::new(bytes);
$(
builder.register_type::<$T>()?;
)*
let mut decoder = builder.build()?;
Ok(($(
decoder.decode_next::<$T>()?,
)*
))
}
}
)+
}
}
impl_decode_for_tuples! {
Tuple2 {
(0) -> A
(1) -> B
}
Tuple3 {
(0) -> A
(1) -> B
(2) -> C
}
Tuple4 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
}
Tuple5 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
}
Tuple6 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
}
Tuple7 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
}
Tuple8 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
}
Tuple9 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
}
Tuple10 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
(9) -> J
}
Tuple11 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
(9) -> J
(10) -> K
}
Tuple12 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
(9) -> J
(10) -> K
(11) -> L
}
}
impl Decode for bool {
fn is_ssz_fixed_len() -> bool {
true
@ -515,4 +667,15 @@ mod tests {
})
);
}
#[test]
fn tuple() {
assert_eq!(<(u16, u16)>::from_ssz_bytes(&[0, 0, 0, 0]), Ok((0, 0)));
assert_eq!(<(u16, u16)>::from_ssz_bytes(&[16, 0, 17, 0]), Ok((16, 17)));
assert_eq!(<(u16, u16)>::from_ssz_bytes(&[0, 1, 2, 0]), Ok((256, 2)));
assert_eq!(
<(u16, u16)>::from_ssz_bytes(&[255, 255, 0, 0]),
Ok((65535, 0))
);
}
}

160
eth2/utils/ssz/src/encode/impls.rs
View File

@ -24,8 +24,161 @@ impl_encodable_for_uint!(u8, 8);
impl_encodable_for_uint!(u16, 16);
impl_encodable_for_uint!(u32, 32);
impl_encodable_for_uint!(u64, 64);
#[cfg(target_pointer_width = "32")]
impl_encodable_for_uint!(usize, 32);
#[cfg(target_pointer_width = "64")]
impl_encodable_for_uint!(usize, 64);
// Based on the `tuple_impls` macro from the standard library.
macro_rules! impl_encode_for_tuples {
($(
$Tuple:ident {
$(($idx:tt) -> $T:ident)+
}
)+) => {
$(
impl<$($T: Encode),+> Encode for ($($T,)+) {
fn is_ssz_fixed_len() -> bool {
$(
<$T as Encode>::is_ssz_fixed_len() &&
)*
true
}
fn ssz_fixed_len() -> usize {
if <Self as Encode>::is_ssz_fixed_len() {
$(
<$T as Encode>::ssz_fixed_len() +
)*
0
} else {
BYTES_PER_LENGTH_OFFSET
}
}
fn ssz_append(&self, buf: &mut Vec<u8>) {
let offset = $(
<$T as Encode>::ssz_fixed_len() +
)*
0;
let mut encoder = SszEncoder::container(buf, offset);
$(
encoder.append(&self.$idx);
)*
encoder.finalize();
}
}
)+
}
}
impl_encode_for_tuples! {
Tuple2 {
(0) -> A
(1) -> B
}
Tuple3 {
(0) -> A
(1) -> B
(2) -> C
}
Tuple4 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
}
Tuple5 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
}
Tuple6 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
}
Tuple7 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
}
Tuple8 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
}
Tuple9 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
}
Tuple10 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
(9) -> J
}
Tuple11 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
(9) -> J
(10) -> K
}
Tuple12 {
(0) -> A
(1) -> B
(2) -> C
(3) -> D
(4) -> E
(5) -> F
(6) -> G
(7) -> H
(8) -> I
(9) -> J
(10) -> K
(11) -> L
}
}
/// The SSZ "union" type.
impl<T: Encode> Encode for Option<T> {
fn is_ssz_fixed_len() -> bool {
@ -287,4 +440,11 @@ mod tests {
assert_eq!([1, 0, 0, 0].as_ssz_bytes(), vec![1, 0, 0, 0]);
assert_eq!([1, 2, 3, 4].as_ssz_bytes(), vec![1, 2, 3, 4]);
}
#[test]
fn tuple() {
assert_eq!((10u8, 11u8).as_ssz_bytes(), vec![10, 11]);
assert_eq!((10u32, 11u8).as_ssz_bytes(), vec![10, 0, 0, 0, 11]);
assert_eq!((10u8, 11u8, 12u8).as_ssz_bytes(), vec![10, 11, 12]);
}
}

7
eth2/utils/ssz/src/lib.rs
View File

@ -2,7 +2,7 @@
//! format designed for use in Ethereum 2.0.
//!
//! Conforms to
//! [v0.6.1](https://github.com/ethereum/eth2.0-specs/blob/v0.6.1/specs/simple-serialize.md) of the
//! [v0.7.1](https://github.com/ethereum/eth2.0-specs/blob/v0.7.1/specs/simple-serialize.md) of the
//! Ethereum 2.0 specification.
//!
//! ## Example
@ -46,7 +46,10 @@ pub use encode::{Encode, SszEncoder};
/// The number of bytes used to represent an offset.
pub const BYTES_PER_LENGTH_OFFSET: usize = 4;
/// The maximum value that can be represented using `BYTES_PER_LENGTH_OFFSET`.
pub const MAX_LENGTH_VALUE: usize = (1 << (BYTES_PER_LENGTH_OFFSET * 8)) - 1;
#[cfg(target_pointer_width = "32")]
pub const MAX_LENGTH_VALUE: usize = (std::u32::MAX >> 8 * (4 - BYTES_PER_LENGTH_OFFSET)) as usize;
#[cfg(target_pointer_width = "64")]
pub const MAX_LENGTH_VALUE: usize = (std::u64::MAX >> 8 * (8 - BYTES_PER_LENGTH_OFFSET)) as usize;
/// Convenience function to SSZ encode an object supporting ssz::Encode.
///

30
eth2/utils/ssz/tests/tests.rs
View File

@ -346,4 +346,34 @@ mod round_trip {
round_trip(vec);
}
#[test]
fn tuple_u8_u16() {
let vec: Vec<(u8, u16)> = vec![
(0, 0),
(0, 1),
(1, 0),
(u8::max_value(), u16::max_value()),
(0, u16::max_value()),
(u8::max_value(), 0),
(42, 12301),
];
round_trip(vec);
}
#[test]
fn tuple_vec_vec() {
let vec: Vec<(u64, Vec<u8>, Vec<Vec<u16>>)> = vec![
(0, vec![], vec![vec![]]),
(99, vec![101], vec![vec![], vec![]]),
(
42,
vec![12, 13, 14],
vec![vec![99, 98, 97, 96], vec![42, 44, 46, 48, 50]],
),
];
round_trip(vec);
}
}

9
eth2/utils/ssz_derive/Cargo.toml
View File

@ -1,14 +1,15 @@
[package]
name = "ssz_derive"
name = "eth2_ssz_derive"
version = "0.1.0"
authors = ["Paul Hauner <paul@paulhauner.com>"]
authors = ["Paul Hauner <paul@sigmaprime.io>"]
edition = "2018"
description = "Procedural derive macros for SSZ encoding and decoding."
description = "Procedural derive macros to accompany the eth2_ssz crate."
[lib]
name = "ssz_derive"
proc-macro = true
[dependencies]
syn = "0.15"
quote = "0.6"
ssz = { path = "../ssz" }
eth2_ssz = { path = "../ssz" }

2
eth2/validator_change/Cargo.toml
View File

@ -7,5 +7,5 @@ edition = "2018"
[dependencies]
bytes = "0.4.10"
hashing = { path = "../utils/hashing" }
ssz = { path = "../utils/ssz" }
eth2_ssz = { path = "../utils/ssz" }
types = { path = "../types" }

2
tests/ef_tests/Cargo.toml
View File

@ -17,7 +17,7 @@ serde = "1.0"
serde_derive = "1.0"
serde_repr = "0.1"
serde_yaml = "0.8"
ssz = { path = "../../eth2/utils/ssz" }
eth2_ssz = { path = "../../eth2/utils/ssz" }
tree_hash = { path = "../../eth2/utils/tree_hash" }
cached_tree_hash = { path = "../../eth2/utils/cached_tree_hash" }
state_processing = { path = "../../eth2/state_processing" }

3
validator_client/Cargo.toml
View File

@ -14,7 +14,7 @@ path = "src/lib.rs"
[dependencies]
bls = { path = "../eth2/utils/bls" }
ssz = { path = "../eth2/utils/ssz" }
eth2_ssz = { path = "../eth2/utils/ssz" }
eth2_config = { path = "../eth2/utils/eth2_config" }
tree_hash = { path = "../eth2/utils/tree_hash" }
clap = "2.32.0"
@ -34,3 +34,4 @@ toml = "^0.5"
error-chain = "0.12.0"
bincode = "^1.1.2"
futures = "0.1.25"
dirs = "2.0.1"

34
validator_client/src/main.rs
View File

@ -9,9 +9,10 @@ mod signer;
use crate::config::Config as ValidatorClientConfig;
use crate::service::Service as ValidatorService;
use clap::{App, Arg};
use eth2_config::{get_data_dir, read_from_file, write_to_file, Eth2Config};
use eth2_config::{read_from_file, write_to_file, Eth2Config};
use protos::services_grpc::ValidatorServiceClient;
use slog::{crit, error, info, o, Drain};
use std::fs;
use std::path::PathBuf;
use types::{Keypair, MainnetEthSpec, MinimalEthSpec};
@ -35,6 +36,7 @@ fn main() {
.arg(
Arg::with_name("datadir")
.long("datadir")
.short("d")
.value_name("DIR")
.help("Data directory for keys and databases.")
.takes_value(true),
@ -66,14 +68,34 @@ fn main() {
)
.get_matches();
let data_dir = match get_data_dir(&matches, PathBuf::from(DEFAULT_DATA_DIR)) {
Ok(dir) => dir,
Err(e) => {
crit!(log, "Failed to initialize data dir"; "error" => format!("{:?}", e));
return;
let data_dir = match matches
.value_of("datadir")
.and_then(|v| Some(PathBuf::from(v)))
{
Some(v) => v,
None => {
// use the default
let mut default_dir = match dirs::home_dir() {
Some(v) => v,
None => {
crit!(log, "Failed to find a home directory");
return;
}
};
default_dir.push(DEFAULT_DATA_DIR);
PathBuf::from(default_dir)
}
};
// create the directory if needed
match fs::create_dir_all(&data_dir) {
Ok(_) => {}
Err(e) => {
crit!(log, "Failed to initialize data dir"; "error" => format!("{}", e));
return;
}
}
let client_config_path = data_dir.join(CLIENT_CONFIG_FILENAME);
// Attempt to lead the `ClientConfig` from disk.