Files
lighthouse/beacon_node/eth2-libp2p/src/config.rs
2019-11-28 10:31:51 +11:00

99 lines
3.4 KiB
Rust

use enr::Enr;
use libp2p::gossipsub::{GossipsubConfig, GossipsubConfigBuilder};
use libp2p::Multiaddr;
use serde_derive::{Deserialize, Serialize};
use std::path::PathBuf;
use std::time::Duration;
/// The gossipsub topic names.
// These constants form a topic name of the form /TOPIC_PREFIX/TOPIC/ENCODING_POSTFIX
// For example /eth2/beacon_block/ssz
pub const TOPIC_PREFIX: &str = "eth2";
pub const TOPIC_ENCODING_POSTFIX: &str = "ssz";
pub const BEACON_BLOCK_TOPIC: &str = "beacon_block";
pub const BEACON_ATTESTATION_TOPIC: &str = "beacon_attestation";
pub const VOLUNTARY_EXIT_TOPIC: &str = "voluntary_exit";
pub const PROPOSER_SLASHING_TOPIC: &str = "proposer_slashing";
pub const ATTESTER_SLASHING_TOPIC: &str = "attester_slashing";
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.
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,
/// A secp256k1 secret key, as bytes in ASCII-encoded hex.
///
/// With or without `0x` prefix.
#[serde(skip)]
pub secret_key_hex: Option<String>,
/// Gossipsub configuration parameters.
#[serde(skip)]
pub gs_config: GossipsubConfig,
/// List of nodes to initially connect to.
pub boot_nodes: Vec<Enr>,
/// List of libp2p nodes to initially connect to.
pub libp2p_nodes: Vec<Multiaddr>,
/// Client version
pub client_version: String,
/// List of extra topics to initially subscribe to as strings.
pub topics: Vec<String>,
/// Introduces randomization in network propagation of messages. This should only be set for
/// testing purposes and will likely be removed in future versions.
// TODO: Remove this functionality for mainnet
pub propagation_percentage: Option<u8>,
}
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 {
network_dir,
listen_address: "127.0.0.1".parse().expect("valid ip address"),
libp2p_port: 9000,
discovery_address: "127.0.0.1".parse().expect("valid ip address"),
discovery_port: 9000,
max_peers: 10,
secret_key_hex: None,
// Note: The topics by default are sent as plain strings. Hashes are an optional
// parameter.
gs_config: GossipsubConfigBuilder::new()
.max_transmit_size(1_048_576)
.heartbeat_interval(Duration::from_secs(20)) // TODO: Reduce for mainnet
.manual_propagation(true) // require validation before propagation
.build(),
boot_nodes: vec![],
libp2p_nodes: vec![],
client_version: version::version(),
topics: Vec::new(),
propagation_percentage: None,
}
}
}