Cell Dissemination (Partial messages) (#8314)

- https://github.com/ethereum/consensus-specs/pull/4558
- https://eips.ethereum.org/EIPS/eip-8136


  


Co-Authored-By: Daniel Knopik <daniel@dknopik.de>

Co-Authored-By: Pawan Dhananjay <pawandhananjay@gmail.com>

Co-Authored-By: Jimmy Chen <jchen.tc@gmail.com>

beacon_node/network/src/router.rs

@@ -14,7 +14,7 @@ use beacon_processor::{BeaconProcessorSend, DuplicateCache};
 use futures::prelude::*;
 use lighthouse_network::rpc::*;
 use lighthouse_network::{
-    MessageId, NetworkGlobals, PeerId, PubsubMessage, Response,
+    GossipTopic, MessageId, NetworkGlobals, PeerId, PubsubMessage, Response,
     service::api_types::{AppRequestId, SyncRequestId},
 };
 use logging::TimeLatch;
@@ -24,7 +24,9 @@ use std::sync::Arc;
 use tokio::sync::mpsc;
 use tokio_stream::wrappers::UnboundedReceiverStream;
 use tracing::{debug, error, trace, warn};
-use types::{BlobSidecar, DataColumnSidecar, EthSpec, ForkContext, SignedBeaconBlock};
+use types::{
+    BlobSidecar, DataColumnSidecar, EthSpec, ForkContext, PartialDataColumn, SignedBeaconBlock,
+};
 
 /// Handles messages from the network and routes them to the appropriate service to be handled.
 pub struct Router<T: BeaconChainTypes> {
@@ -69,6 +71,8 @@ pub enum RouterMessage<E: EthSpec> {
     /// message, the message itself and a bool which indicates if the message should be processed
     /// by the beacon chain after successful verification.
     PubsubMessage(MessageId, PeerId, PubsubMessage<E>, bool),
+    /// A partial data column sidecar has been received via gossipsub partial protocol.
+    PartialDataColumnSidecar(PeerId, Box<PartialDataColumn<E>>, GossipTopic),
     /// The peer manager has requested we re-status a peer.
     StatusPeer(PeerId),
     /// The peer has an updated custody group count from METADATA.
@@ -180,6 +184,16 @@ impl<T: BeaconChainTypes> Router<T> {
             RouterMessage::PubsubMessage(id, peer_id, gossip, should_process) => {
                 self.handle_gossip(id, peer_id, gossip, should_process);
             }
+            RouterMessage::PartialDataColumnSidecar(peer_id, column, topic) => self
+                .handle_beacon_processor_send_result(
+                    self.network_beacon_processor
+                        .send_gossip_partial_data_column_sidecar(
+                            peer_id,
+                            column,
+                            self.chain.slot_clock.now_duration().unwrap_or_default(),
+                            topic,
+                        ),
+                ),
         }
     }