Supports discv5 related configurations (#84)

* Supports discv5 related configurations

* fix fmt

node/src/config/convert.rs

@@ -46,8 +46,14 @@ impl ZgsConfig {
             .map_err(|e| format!("Unable to parse network_libp2p_nodes: {:?}", e))?;
 
         network_config.discv5_config.table_filter = |_| true;
+        network_config.discv5_config.request_timeout =
+            Duration::from_secs(self.discv5_request_timeout_secs);
+        network_config.discv5_config.query_peer_timeout =
+            Duration::from_secs(self.discv5_query_peer_timeout_secs);
+        network_config.discv5_config.request_retries = self.discv5_request_retries;
+        network_config.discv5_config.query_parallelism = self.discv5_query_parallelism;
+        network_config.discv5_config.report_discovered_peers = self.discv5_report_discovered_peers;
 
-        // TODO
         network_config.target_peers = self.network_target_peers;
         network_config.private = self.network_private;
 

node/src/config/mod.rs

@@ -20,6 +20,13 @@ build_config! {
     (network_private, (bool), false)
     (network_disable_discovery, (bool), false)
 
+    // discv5
+    (discv5_request_timeout_secs, (u64), 5)
+    (discv5_query_peer_timeout_secs, (u64), 2)
+    (discv5_request_retries, (u8), 1)
+    (discv5_query_parallelism, (usize), 5)
+    (discv5_report_discovered_peers, (bool), false)
+
     // log sync
     (blockchain_rpc_endpoint, (String), "http://127.0.0.1:8545".to_string())
     (log_contract_address, (String), "".to_string())

run/config.toml

@@ -12,7 +12,8 @@
 # network_listen_address = "0.0.0.0"
 
 # The address to broadcast to peers about which address we are listening on. Empty indicates
-# that no discovery address has been set.
+# that no discovery address has been set. Generally, configure public IP address along with
+# `network_enr_tcp_port` and `network_enr_udp_port` with default values to enable UDP discovery.
 # network_enr_address = ""
 
 # The tcp port to broadcast to peers in order to reach back for libp2p services.
@@ -30,7 +31,8 @@
 # Target number of connected peers.
 # network_target_peers = 50
 
-# List of nodes to initially connect to
+# List of nodes to bootstrap UDP discovery. Note, `network_enr_address`, `network_enr_tcp_port`
+# and `network_enr_udp_port` should be configured as well to enable UDP discovery.
 network_boot_nodes = ["/ip4/54.219.26.22/udp/1234/p2p/16Uiu2HAmPxGNWu9eVAQPJww79J32pTJLKGcpjRMb4Qb8xxKkyuG1","/ip4/52.52.127.117/udp/1234/p2p/16Uiu2HAm93Hd5azfhkGBbkx1zero3nYHvfjQYM2NtiW4R3r5bE2g"]
 
 # List of libp2p nodes to initially connect to.
@@ -43,6 +45,26 @@ network_boot_nodes = ["/ip4/54.219.26.22/udp/1234/p2p/16Uiu2HAmPxGNWu9eVAQPJww79
 # Disables the discovery protocol from starting.
 # network_disable_discovery = false
 
+#######################################################################
+###                   UDP Discovery Config Options                  ###
+#######################################################################
+# The request timeout for each UDP request.
+# discv5_request_timeout_secs = 5
+
+# The timeout after which a `QueryPeer` in an ongoing query is marked unresponsive.
+# Unresponsive peers don't count towards the parallelism limits for a query.
+# Hence, we may potentially end up making more requests to good peers.
+# discv5_query_peer_timeout_secs = 2
+
+# The number of retries for each UDP request.
+# discv5_request_retries = 1
+
+# The number of peers to request in parallel in a single query.
+# discv5_query_parallelism = 5
+
+# Reports all discovered ENR's when traversing the DHT to the event stream.
+# discv5_report_discovered_peers = false
+
 #######################################################################
 ###                     Log Sync Config Options                     ###
 #######################################################################