fix enr advertising

beacon_chain/networking/eth2_network.nim

@@ -1562,8 +1562,7 @@ proc runDiscoveryLoop(node: Eth2Node) {.async.} =
       (wantedAttnets, wantedSyncnets, wantedCscnets) = node.getLowSubnets(currentEpoch)
       wantedAttnetsCount = wantedAttnets.countOnes()
       wantedSyncnetsCount = wantedSyncnets.countOnes()
-      wantedCscnetsCount = wantedCscnets.countOnes().uint64()
-      wantedCscnetsBEBytes = wantedCscnetsCount.toBytesBE()
+      wantedCscnetsCount = wantedCscnets.countOnes().uint8()
       outgoingPeers = node.peerPool.lenCurrent({PeerType.Outgoing})
       targetOutgoingPeers = max(node.wantedPeers div 10, 3)
 
@@ -2635,10 +2634,10 @@ proc updateStabilitySubnetMetadata*(node: Eth2Node, attnets: AttnetBits) =
     debug "Stability subnets changed; updated ENR attnets", attnets
 
 proc loadCscnetsMetadata*(node: Eth2Node, cscnets: CscCount) =
-  if node.metadata.custody_subnet_count == cscnets:
+  if node.metadata.custody_subnet_count == cscnets.uint64:
     return
 
-  node.metadata.custody_subnet_count = cscnets
+  node.metadata.custody_subnet_count = cscnets.uint64
 
   let res = node.discovery.updateRecord({
     enrCustodySubnetCountField: SSZ.encode(node.metadata.custody_subnet_count)})

beacon_chain/nimbus_beacon_node.nim

@@ -1152,8 +1152,8 @@ proc addDenebMessageHandlers(
   let 
     targetSubnets = node.fetchCustodySubnetCount()
     custody_subnets = 
-      node.network.nodeId.get_custody_column_subnets(max(SAMPLES_PER_SLOT.uint64,
-                                                     targetSubnets))
+      node.network.nodeId.get_custody_column_subnets(max(SAMPLES_PER_SLOT.uint8,
+                                                     targetSubnets.uint8))
 
   debugEcho "Target Subnets"
   debugEcho targetSubnets
@@ -1169,13 +1169,13 @@ proc addDenebMessageHandlers(
       node.network.subscribe(topic, basicParams)
 
   if node.config.subscribeAllSubnets:
-    node.network.loadCscnetsMetadata(DATA_COLUMN_SIDECAR_SUBNET_COUNT.uint64)
+    node.network.loadCscnetsMetadata(DATA_COLUMN_SIDECAR_SUBNET_COUNT.uint8)
   elif not node.config.subscribeAllSubnets:
     let csc = node.config.custodySubnetCount
     if csc.isSome and csc.get < DATA_COLUMN_SIDECAR_SUBNET_COUNT:
-      node.network.loadCscnetsMetadata(csc.get.uint64)
+      node.network.loadCscnetsMetadata(csc.get.uint8)
     else:
-      node.network.loadCscnetsMetadata(CUSTODY_REQUIREMENT.uint64)
+      node.network.loadCscnetsMetadata(CUSTODY_REQUIREMENT.uint8)
 
 proc addElectraMessageHandlers(
     node: BeaconNode, forkDigest: ForkDigest, slot: Slot) =

beacon_chain/spec/datatypes/eip7594.nim

@@ -77,14 +77,14 @@ type
     row_index*: RowIndex
   
   CscBits* = BitArray[DATA_COLUMN_SIDECAR_SUBNET_COUNT]
-  CscCount* = uint64
+  CscCount* = uint8
 
   # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.4/specs/_features/eip7594/p2p-interface.md#metadata
   MetaData* = object
     seq_number*: uint64
     attnets*: AttnetBits
     syncnets*: SyncnetBits
-    custody_subnet_count*: CscCount 
+    custody_subnet_count*: uint64 
 
 # func serializeDataColumn(data_column: DataColumn): auto =
 #   var counter = 0

beacon_chain/sync/request_manager.nim

@@ -315,7 +315,6 @@ proc fetchDataColumnsFromNetwork(rman: RequestManager,
                                  colIdList: seq[DataColumnIdentifier])
                                  {.async: (raises: [CancelledError]).} =
   var peer: Peer
-  var peers: seq[Peer]
   try:
     peer = await rman.network.peerPool.acquire()