feat(comms): allow multiple messaging protocol instances (#5748)

Description
---
Allow multiple message protocol instances

Motivation and Context
---
In L2 we want to have 2 messaging substreams, one for hotstuff messages
and one for the rest (transactions, network messages) to prevent the
queue of incoming transactions from causing HS leader failures.

In the base layer we spawn a single messaging protocol with the same
identitfier, so nothing changes
 
How Has This Been Tested?
---
Existing tests and manually

What process can a PR reviewer use to test or verify this change?
---
Node and wallet function as before

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Breaking Changes
---

- [x] None
- [ ] Requires data directory on base node to be deleted
- [ ] Requires hard fork
- [ ] Other - Please specify

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Co-authored-by: SW van Heerden <swvheerden@gmail.com>

base_layer/p2p/src/initialization.rs

@@ -48,6 +48,7 @@ use tari_comms::{
         messaging::{MessagingEventSender, MessagingProtocolExtension},
         rpc::RpcServer,
         NodeNetworkInfo,
+        ProtocolId,
     },
     tor,
     tor::HiddenServiceControllerError,
@@ -81,6 +82,9 @@ use crate::{
 };
 const LOG_TARGET: &str = "p2p::initialization";
 
+/// ProtocolId for minotari messaging protocol
+pub static MESSAGING_PROTOCOL_ID: ProtocolId = ProtocolId::from_static(b"t/msg/0.1");
+
 #[derive(Debug, Error)]
 pub enum CommsInitializationError {
     #[error("Comms builder error: `{0}`")]
@@ -199,7 +203,8 @@ pub async fn initialize_local_test_comms<P: AsRef<Path>>(
 
     let comms = comms
         .add_protocol_extension(
-            MessagingProtocolExtension::new(event_sender.clone(), pipeline).enable_message_received_event(),
+            MessagingProtocolExtension::new(MESSAGING_PROTOCOL_ID.clone(), event_sender.clone(), pipeline)
+                .enable_message_received_event(),
         )
         .spawn_with_transport(MemoryTransport)
         .await?;
@@ -374,8 +379,12 @@ async fn configure_comms_and_dht(
 
     let (messaging_events_sender, _) = broadcast::channel(1);
     comms = comms.add_protocol_extension(
-        MessagingProtocolExtension::new(messaging_events_sender, messaging_pipeline)
-            .with_ban_duration(config.dht.ban_duration_short),
+        MessagingProtocolExtension::new(
+            MESSAGING_PROTOCOL_ID.clone(),
+            messaging_events_sender,
+            messaging_pipeline,
+        )
+        .with_ban_duration(config.dht.ban_duration_short),
     );
 
     Ok((comms, dht))

comms/core/examples/stress/node.rs

@@ -29,7 +29,7 @@ use tari_comms::{
     multiaddr::Multiaddr,
     pipeline,
     pipeline::SinkService,
-    protocol::{messaging::MessagingProtocolExtension, ProtocolNotification, Protocols},
+    protocol::{messaging::MessagingProtocolExtension, ProtocolId, ProtocolNotification, Protocols},
     tor,
     tor::TorIdentity,
     transports::{predicate::FalsePredicate, SocksConfig, TcpWithTorTransport},
@@ -47,6 +47,8 @@ use tokio::sync::{broadcast, mpsc};
 
 use super::{error::Error, STRESS_PROTOCOL_NAME, TOR_CONTROL_PORT_ADDR, TOR_SOCKS_ADDR};
 
+static MSG_PROTOCOL_ID: ProtocolId = ProtocolId::from_static(b"example/msg/1.0");
+
 pub async fn create(
     node_identity: Option<Arc<NodeIdentity>>,
     database_path: &Path,
@@ -115,6 +117,7 @@ pub async fn create(
             .build()?
             .add_protocol_extensions(protocols.into())
             .add_protocol_extension(MessagingProtocolExtension::new(
+                MSG_PROTOCOL_ID.clone(),
                 event_tx,
                 pipeline::Builder::new()
                     .with_inbound_pipeline(SinkService::new(inbound_tx))
@@ -148,6 +151,7 @@ pub async fn create(
             .with_hidden_service_controller(hs_ctl)
             .add_protocol_extensions(protocols.into())
             .add_protocol_extension(MessagingProtocolExtension::new(
+                MSG_PROTOCOL_ID.clone(),
                 event_tx,
                 pipeline::Builder::new()
                     .with_inbound_pipeline(SinkService::new(inbound_tx))

comms/core/examples/tor.rs

@@ -14,7 +14,7 @@ use tari_comms::{
     peer_manager::{NodeId, NodeIdentity, Peer, PeerFeatures},
     pipeline,
     pipeline::SinkService,
-    protocol::messaging::MessagingProtocolExtension,
+    protocol::{messaging::MessagingProtocolExtension, ProtocolId},
     tor,
     CommsBuilder,
     CommsNode,
@@ -34,6 +34,8 @@ use tokio::{
 //
 // _Note:_ A running tor proxy with `ControlPort` set is required for this example to work.
 
+static MSG_PROTOCOL_ID: ProtocolId = ProtocolId::from_static(b"example/tor/msg/1.0");
+
 type Error = anyhow::Error;
 
 #[tokio::main]
@@ -195,6 +197,7 @@ async fn setup_node_with_tor<P: Into<tor::PortMapping>>(
     let (event_tx, _) = broadcast::channel(1);
     let comms_node = comms_node
         .add_protocol_extension(MessagingProtocolExtension::new(
+            MSG_PROTOCOL_ID.clone(),
             event_tx,
             pipeline::Builder::new()
             // Outbound messages will be forwarded "as is" to outbound messaging

comms/core/src/builder/tests.rs

@@ -48,6 +48,7 @@ use crate::{
     protocol::{
         messaging::{MessagingEvent, MessagingEventSender, MessagingProtocolExtension},
         ProtocolEvent,
+        ProtocolId,
         Protocols,
     },
     test_utils::node_identity::build_node_identity,
@@ -91,6 +92,7 @@ async fn spawn_node(
         .add_protocol_extensions(protocols.into())
         .add_protocol_extension(
             MessagingProtocolExtension::new(
+                ProtocolId::from_static(b"test/msg"),
                 messaging_events_sender.clone(),
                 pipeline::Builder::new()
                 // Outbound messages will be forwarded "as is" to outbound messaging

comms/core/src/protocol/messaging/extension.rs

@@ -31,10 +31,11 @@ use crate::{
     message::InboundMessage,
     pipeline,
     protocol::{
-        messaging::{protocol::MESSAGING_PROTOCOL_ID, MessagingEventSender},
+        messaging::MessagingEventSender,
         ProtocolExtension,
         ProtocolExtensionContext,
         ProtocolExtensionError,
+        ProtocolId,
     },
 };
 
@@ -52,11 +53,17 @@ pub struct MessagingProtocolExtension<TInPipe, TOutPipe, TOutReq> {
     pipeline: pipeline::Config<TInPipe, TOutPipe, TOutReq>,
     enable_message_received_event: bool,
     ban_duration: Duration,
+    protocol_id: ProtocolId,
 }
 
 impl<TInPipe, TOutPipe, TOutReq> MessagingProtocolExtension<TInPipe, TOutPipe, TOutReq> {
-    pub fn new(event_tx: MessagingEventSender, pipeline: pipeline::Config<TInPipe, TOutPipe, TOutReq>) -> Self {
+    pub fn new(
+        protocol_id: ProtocolId,
+        event_tx: MessagingEventSender,
+        pipeline: pipeline::Config<TInPipe, TOutPipe, TOutReq>,
+    ) -> Self {
         Self {
+            protocol_id,
             event_tx,
             pipeline,
             enable_message_received_event: false,
@@ -91,12 +98,13 @@ where
 {
     fn install(mut self: Box<Self>, context: &mut ProtocolExtensionContext) -> Result<(), ProtocolExtensionError> {
         let (proto_tx, proto_rx) = mpsc::channel(MESSAGING_PROTOCOL_EVENTS_BUFFER_SIZE);
-        context.add_protocol(&[MESSAGING_PROTOCOL_ID.clone()], &proto_tx);
+        context.add_protocol(&[self.protocol_id.clone()], &proto_tx);
 
         let (inbound_message_tx, inbound_message_rx) = mpsc::channel(INBOUND_MESSAGE_BUFFER_SIZE);
 
         let message_receiver = self.pipeline.outbound.out_receiver.take().unwrap();
         let messaging = MessagingProtocol::new(
+            self.protocol_id.clone(),
             context.connectivity(),
             proto_rx,
             message_receiver,

comms/core/src/protocol/messaging/mod.rs

@@ -37,14 +37,7 @@ mod inbound;
 mod metrics;
 mod outbound;
 mod protocol;
-pub use protocol::{
-    MessagingEvent,
-    MessagingEventReceiver,
-    MessagingEventSender,
-    MessagingProtocol,
-    SendFailReason,
-    MESSAGING_PROTOCOL_ID,
-};
+pub use protocol::{MessagingEvent, MessagingEventReceiver, MessagingEventSender, MessagingProtocol, SendFailReason};
 
 #[cfg(test)]
 mod test;

comms/core/src/protocol/messaging/outbound.rs

@@ -33,7 +33,7 @@ use crate::{
     message::OutboundMessage,
     multiplexing::Substream,
     peer_manager::NodeId,
-    protocol::messaging::protocol::MESSAGING_PROTOCOL_ID,
+    protocol::ProtocolId,
     stream_id::StreamId,
 };
 
@@ -50,6 +50,7 @@ pub struct OutboundMessaging {
     messaging_events_tx: mpsc::Sender<MessagingEvent>,
     retry_queue_tx: mpsc::UnboundedSender<OutboundMessage>,
     peer_node_id: NodeId,
+    protocol_id: ProtocolId,
 }
 
 impl OutboundMessaging {
@@ -59,13 +60,15 @@ impl OutboundMessaging {
         messages_rx: mpsc::UnboundedReceiver<OutboundMessage>,
         retry_queue_tx: mpsc::UnboundedSender<OutboundMessage>,
         peer_node_id: NodeId,
+        protocol_id: ProtocolId,
     ) -> Self {
         Self {
             connectivity,
             messages_rx,
             messaging_events_tx,
             retry_queue_tx,
             peer_node_id,
+            protocol_id,
         }
     }
 
@@ -223,7 +226,7 @@ impl OutboundMessaging {
         &mut self,
         conn: &mut PeerConnection,
     ) -> Result<NegotiatedSubstream<Substream>, MessagingProtocolError> {
-        match conn.open_substream(&MESSAGING_PROTOCOL_ID).await {
+        match conn.open_substream(&self.protocol_id).await {
             Ok(substream) => Ok(substream),
             Err(err) => {
                 debug!(

comms/core/src/protocol/messaging/protocol.rs

@@ -27,7 +27,6 @@ use std::{
     time::Duration,
 };
 
-use bytes::Bytes;
 use log::*;
 use tari_shutdown::{Shutdown, ShutdownSignal};
 use thiserror::Error;
@@ -48,12 +47,12 @@ use crate::{
     protocol::{
         messaging::{inbound::InboundMessaging, outbound::OutboundMessaging},
         ProtocolEvent,
+        ProtocolId,
         ProtocolNotification,
     },
 };
 
 const LOG_TARGET: &str = "comms::protocol::messaging";
-pub static MESSAGING_PROTOCOL_ID: Bytes = Bytes::from_static(b"t/msg/0.1");
 const INTERNAL_MESSAGING_EVENT_CHANNEL_SIZE: usize = 10;
 
 const MAX_FRAME_LENGTH: usize = 8 * 1_024 * 1_024;
@@ -102,6 +101,7 @@ impl fmt::Display for MessagingEvent {
 
 /// Actor responsible for lazily spawning inbound (protocol notifications) and outbound (mpsc channel) messaging actors.
 pub struct MessagingProtocol {
+    protocol_id: ProtocolId,
     connectivity: ConnectivityRequester,
     proto_notification: mpsc::Receiver<ProtocolNotification<Substream>>,
     active_queues: HashMap<NodeId, mpsc::UnboundedSender<OutboundMessage>>,
@@ -122,6 +122,7 @@ pub struct MessagingProtocol {
 impl MessagingProtocol {
     /// Create a new messaging protocol actor.
     pub(super) fn new(
+        protocol_id: ProtocolId,
         connectivity: ConnectivityRequester,
         proto_notification: mpsc::Receiver<ProtocolNotification<Substream>>,
         outbound_message_rx: mpsc::UnboundedReceiver<OutboundMessage>,
@@ -134,6 +135,7 @@ impl MessagingProtocol {
         let (retry_queue_tx, retry_queue_rx) = mpsc::unbounded_channel();
 
         Self {
+            protocol_id,
             connectivity,
             proto_notification,
             outbound_message_rx,
@@ -287,6 +289,7 @@ impl MessagingProtocol {
                         self.internal_messaging_event_tx.clone(),
                         peer_node_id,
                         self.retry_queue_tx.clone(),
+                        self.protocol_id.clone(),
                     );
                     break entry.insert(sender);
                 },
@@ -315,9 +318,17 @@ impl MessagingProtocol {
         events_tx: mpsc::Sender<MessagingEvent>,
         peer_node_id: NodeId,
         retry_queue_tx: mpsc::UnboundedSender<OutboundMessage>,
+        protocol_id: ProtocolId,
     ) -> mpsc::UnboundedSender<OutboundMessage> {
         let (msg_tx, msg_rx) = mpsc::unbounded_channel();
-        let outbound_messaging = OutboundMessaging::new(connectivity, events_tx, msg_rx, retry_queue_tx, peer_node_id);
+        let outbound_messaging = OutboundMessaging::new(
+            connectivity,
+            events_tx,
+            msg_rx,
+            retry_queue_tx,
+            peer_node_id,
+            protocol_id,
+        );
         tokio::spawn(outbound_messaging.run());
         msg_tx
     }

comms/core/src/protocol/messaging/test.rs

@@ -33,13 +33,18 @@ use tokio::{
     time,
 };
 
-use super::protocol::{MessagingEvent, MessagingEventReceiver, MessagingProtocol, MESSAGING_PROTOCOL_ID};
+use super::protocol::{MessagingEventReceiver, MessagingProtocol};
 use crate::{
     message::{InboundMessage, MessageTag, MessagingReplyRx, OutboundMessage},
     multiplexing::Substream,
     net_address::MultiaddressesWithStats,
     peer_manager::{NodeId, NodeIdentity, Peer, PeerFeatures, PeerFlags, PeerManager},
-    protocol::{messaging::SendFailReason, ProtocolEvent, ProtocolNotification},
+    protocol::{
+        messaging::{MessagingEvent, SendFailReason},
+        ProtocolEvent,
+        ProtocolId,
+        ProtocolNotification,
+    },
     test_utils::{
         mocks::{create_connectivity_mock, create_peer_connection_mock_pair, ConnectivityManagerMockState},
         node_id,
@@ -51,6 +56,8 @@ use crate::{
 
 static TEST_MSG1: Bytes = Bytes::from_static(b"TEST_MSG1");
 
+static MESSAGING_PROTOCOL_ID: ProtocolId = ProtocolId::from_static(b"test/msg");
+
 async fn spawn_messaging_protocol() -> (
     Arc<PeerManager>,
     Arc<NodeIdentity>,
@@ -75,6 +82,7 @@ async fn spawn_messaging_protocol() -> (
     let (events_tx, events_rx) = broadcast::channel(100);
 
     let msg_proto = MessagingProtocol::new(
+        MESSAGING_PROTOCOL_ID.clone(),
         requester,
         proto_rx,
         request_rx,

comms/dht/examples/memory_net/utilities.rs

@@ -42,6 +42,7 @@ use tari_comms::{
     protocol::{
         messaging::{MessagingEvent, MessagingEventReceiver, MessagingEventSender, MessagingProtocolExtension},
         rpc::RpcServer,
+        ProtocolId,
     },
     transports::MemoryTransport,
     types::CommsDatabase,
@@ -75,6 +76,7 @@ use tower::ServiceBuilder;
 
 use crate::memory_net::DrainBurst;
 
+pub static MEMORYNET_MSG_PROTOCOL_ID: ProtocolId = ProtocolId::from_static(b"t/msg/1.0");
 pub type NodeEventRx = mpsc::UnboundedReceiver<(NodeId, NodeId)>;
 pub type NodeEventTx = mpsc::UnboundedSender<(NodeId, NodeId)>;
 
@@ -969,7 +971,8 @@ async fn setup_comms_dht(
     let comms = comms
         .add_rpc_server(RpcServer::new().add_service(dht.rpc_service()))
         .add_protocol_extension(
-            MessagingProtocolExtension::new(messaging_events_tx.clone(), pipeline).enable_message_received_event(),
+            MessagingProtocolExtension::new(MEMORYNET_MSG_PROTOCOL_ID.clone(), messaging_events_tx.clone(), pipeline)
+                .enable_message_received_event(),
         )
         .spawn_with_transport(MemoryTransport)
         .await

comms/dht/examples/propagation/node.rs

@@ -28,7 +28,7 @@ use tari_comms::{
     peer_manager::PeerFeatures,
     pipeline,
     pipeline::SinkService,
-    protocol::{messaging::MessagingProtocolExtension, NodeNetworkInfo},
+    protocol::{messaging::MessagingProtocolExtension, NodeNetworkInfo, ProtocolId},
     tor,
     tor::TorIdentity,
     CommsBuilder,
@@ -46,6 +46,8 @@ use tower::ServiceBuilder;
 
 use crate::parse_from_short_str;
 
+pub static MEMORYNET_MSG_PROTOCOL_ID: ProtocolId = ProtocolId::from_static(b"t/msg/1.0");
+
 pub const TOR_CONTROL_PORT_ADDR: &str = "/ip4/127.0.0.1/tcp/9051";
 
 pub async fn create<P: AsRef<Path>>(
@@ -132,6 +134,7 @@ pub async fn create<P: AsRef<Path>>(
     let comms_node = comms_node
         .with_hidden_service_controller(hs_ctl)
         .add_protocol_extension(MessagingProtocolExtension::new(
+            MEMORYNET_MSG_PROTOCOL_ID.clone(),
             event_tx,
             pipeline::Builder::new()
                 .with_inbound_pipeline(