lighthouse/beacon_node/eth2-libp2p/src/config.rs
2019-06-25 18:02:50 +10:00

112 lines
3.6 KiB
Rust

use clap::ArgMatches;
use enr::Enr;
use libp2p::{
gossipsub::{GossipsubConfig, GossipsubConfigBuilder},
multiaddr::Multiaddr,
};
use serde_derive::{Deserialize, Serialize};
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";
//TODO: Implement shard subnets
pub const SHARD_TOPIC_PREFIX: &str = "shard";
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(default)]
/// Network configuration for lighthouse.
pub struct Config {
/// IP address to listen on.
pub listen_addresses: Vec<Multiaddr>,
/// Specifies the IP address that the discovery protocol will listen 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,
/// List of nodes to initially connect to.
pub boot_nodes: Vec<Enr>,
/// Client version
pub client_version: String,
/// 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 {
Config {
listen_addresses: vec!["/ip4/127.0.0.1/tcp/9000".parse().expect("vaild multiaddr")],
discovery_address: "0.0.0.0".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(),
boot_nodes: vec![],
client_version: version::version(),
topics: Vec::new(),
}
}
}
/// Generates a default Config.
impl Config {
pub fn new() -> Self {
Config::default()
}
pub fn apply_cli_args(&mut self, args: &ArgMatches) -> Result<(), String> {
if let Some(listen_address_str) = args.value_of("listen-address") {
self.listen_addresses = listen_address_str
.split(',')
.map(|a| {
a.parse::<Multiaddr>()
.map_err(|_| format!("Invalid Listen address: {:?}", a))
})
.collect::<Result<Vec<Multiaddr>, _>>()?;
}
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(discovery_address_str) = args.value_of("disc-listen-address") {
self.discovery_address = discovery_address_str
.parse::<std::net::IpAddr>()
.map_err(|_| format!("Invalid discovery address: {:?}", discovery_address_str))?;
}
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(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(())
}
}