Add BEEFY gadget as extra peer set (#80)

* Add BEEFY gadget as extra peer set

* use BEEFY protocol

client/beefy/src/lib.rs

@@ -47,6 +47,21 @@ use notification::BeefySignedCommitmentSender;
 
 pub const BEEFY_PROTOCOL_NAME: &str = "/paritytech/beefy/1";
 
+/// Returns the configuration value to put in
+/// [`sc_network::config::NetworkConfiguration::extra_sets`].
+pub fn beefy_peers_set_config() -> sc_network::config::NonDefaultSetConfig {
+	sc_network::config::NonDefaultSetConfig {
+		notifications_protocol: BEEFY_PROTOCOL_NAME.into(),
+		max_notification_size: 1024 * 1024,
+		set_config: sc_network::config::SetConfig {
+			in_peers: 25,
+			out_peers: 25,
+			reserved_nodes: Vec::new(),
+			non_reserved_mode: sc_network::config::NonReservedPeerMode::Accept,
+		},
+	}
+}
+
 /// Allows all gossip messages to get through.
 struct AllowAll<Hash> {
 	topic: Hash,