Initial Interop Updates (#492)

* Add interop chain spec and rename chain_id

* Add ability to connect to raw libp2p nodes

* Adds Identify protocol, clean up RPC protocol name handling

* Update to latest libp2p, gossipsub improvements

* Updates to latest interop branch.

- Shifts decoding of objects into message handler.
- Updates to latest interop gossipsub.
- Adds interop spec constant.

* Configuration updates allow for verbosity CLI flag and spec constants

* Update submodules to master

* Correct minimal chainspec modifications

* Duplication of validator polls are no longer fatal

* Apply PR suggestions

beacon_node/eth2-libp2p/src/config.rs

@@ -1,12 +1,13 @@
 use clap::ArgMatches;
 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 beacon node topic string to subscribe to.
-pub const BEACON_PUBSUB_TOPIC: &str = "beacon_block";
+pub const BEACON_BLOCK_TOPIC: &str = "beacon_block";
 pub const BEACON_ATTESTATION_TOPIC: &str = "beacon_attestation";
 pub const SHARD_TOPIC_PREFIX: &str = "shard";
 
@@ -39,6 +40,9 @@ pub struct Config {
     /// 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,
 
@@ -60,12 +64,13 @@ impl Default for Config {
             discovery_port: 9000,
             max_peers: 10,
             //TODO: Set realistic values for production
+            // Note: This defaults topics to plain strings. Not hashes
             gs_config: GossipsubConfigBuilder::new()
-                .max_gossip_size(4_000_000)
-                .inactivity_timeout(Duration::from_secs(90))
+                .max_transmit_size(1_000_000)
                 .heartbeat_interval(Duration::from_secs(20))
                 .build(),
             boot_nodes: vec![],
+            libp2p_nodes: vec![],
             client_version: version::version(),
             topics: Vec::new(),
         }
@@ -118,6 +123,21 @@ impl Config {
                 .collect::<Result<Vec<Enr>, _>>()?;
         }
 
+        if let Some(libp2p_addresses_str) = args.value_of("libp2p-addresses") {
+            self.libp2p_nodes = libp2p_addresses_str
+                .split(',')
+                .map(|multiaddr| {
+                    multiaddr
+                        .parse()
+                        .map_err(|_| format!("Invalid Multiaddr: {}", multiaddr))
+                })
+                .collect::<Result<Vec<Multiaddr>, _>>()?;
+        }
+
+        if let Some(topics_str) = args.value_of("topics") {
+            self.topics = topics_str.split(',').map(|s| s.into()).collect();
+        }
+
         if let Some(discovery_address_str) = args.value_of("discovery-address") {
             self.discovery_address = discovery_address_str
                 .parse()