Fix wrong custody column count for lookup blocks (#7281)

Fixes
- https://github.com/sigp/lighthouse/issues/7278


  Don't assume 0 columns for `RpcBlockInner::Block`

beacon_node/network/src/sync/block_lookups/common.rs

@@ -6,7 +6,6 @@ use crate::sync::block_lookups::{
 };
 use crate::sync::manager::BlockProcessType;
 use crate::sync::network_context::{LookupRequestResult, SyncNetworkContext};
-use beacon_chain::block_verification_types::RpcBlock;
 use beacon_chain::BeaconChainTypes;
 use lighthouse_network::service::api_types::Id;
 use parking_lot::RwLock;
@@ -97,13 +96,8 @@ impl<T: BeaconChainTypes> RequestState<T> for BlockRequestState<T::EthSpec> {
             seen_timestamp,
             ..
         } = download_result;
-        cx.send_block_for_processing(
-            id,
-            block_root,
-            RpcBlock::new_without_blobs(Some(block_root), value),
-            seen_timestamp,
-        )
-        .map_err(LookupRequestError::SendFailedProcessor)
+        cx.send_block_for_processing(id, block_root, value, seen_timestamp)
+            .map_err(LookupRequestError::SendFailedProcessor)
     }
 
     fn response_type() -> ResponseType {

beacon_node/network/src/sync/block_sidecar_coupling.rs

@@ -266,7 +266,8 @@ impl<E: EthSpec> RangeBlockComponentsRequest<E> {
                 )
                 .map_err(|e| format!("{e:?}"))?
             } else {
-                RpcBlock::new_without_blobs(Some(block_root), block)
+                // Block has no data, expects zero columns
+                RpcBlock::new_without_blobs(Some(block_root), block, 0)
             });
         }
 

beacon_node/network/src/sync/network_context.rs

@@ -1308,7 +1308,7 @@ impl<T: BeaconChainTypes> SyncNetworkContext<T> {
         &self,
         id: Id,
         block_root: Hash256,
-        block: RpcBlock<T::EthSpec>,
+        block: Arc<SignedBeaconBlock<T::EthSpec>>,
         seen_timestamp: Duration,
     ) -> Result<(), SendErrorProcessor> {
         let span = span!(
@@ -1322,6 +1322,12 @@ impl<T: BeaconChainTypes> SyncNetworkContext<T> {
             .beacon_processor_if_enabled()
             .ok_or(SendErrorProcessor::ProcessorNotAvailable)?;
 
+        let block = RpcBlock::new_without_blobs(
+            Some(block_root),
+            block,
+            self.network_globals().custody_columns_count() as usize,
+        );
+
         debug!(block = ?block_root, id, "Sending block for processing");
         // Lookup sync event safety: If `beacon_processor.send_rpc_beacon_block` returns Ok() sync
         // must receive a single `SyncMessage::BlockComponentProcessed` with this process type

beacon_node/network/src/sync/tests/range.rs

@@ -459,7 +459,8 @@ fn build_rpc_block(
             )
             .unwrap()
         }
-        None => RpcBlock::new_without_blobs(None, block),
+        // Block has no data, expects zero columns
+        None => RpcBlock::new_without_blobs(None, block, 0),
     }
 }