Add da router, and initial logic

beacon_node/beacon_chain/src/fetch_blobs/fetch_blobs_beacon_adapter.rs

@@ -94,13 +94,18 @@ impl<T: BeaconChainTypes> FetchBlobsBeaconAdapter<T> {
     pub(crate) fn cached_blob_indexes(&self, block_root: &Hash256) -> Option<Vec<u64>> {
         self.chain
             .data_availability_checker
+            .v1()
             .cached_blob_indexes(block_root)
     }
 
-    pub(crate) fn cached_data_column_indexes(&self, block_root: &Hash256) -> Option<Vec<u64>> {
+    pub(crate) fn cached_data_column_indexes(
+        &self,
+        slot: Slot,
+        block_root: &Hash256,
+    ) -> Option<Vec<u64>> {
         self.chain
             .data_availability_checker
-            .cached_data_column_indexes(block_root)
+            .cached_data_column_indexes(block_root, slot)
     }
 
     pub(crate) async fn process_engine_blobs(

beacon_node/beacon_chain/src/fetch_blobs/mod.rs

@@ -402,7 +402,7 @@ async fn compute_custody_columns_to_import<T: BeaconChainTypes>(
 
                 // Only consider columns that are not already known to data availability.
                 if let Some(known_columns) =
-                    chain_adapter_cloned.cached_data_column_indexes(&block_root)
+                    chain_adapter_cloned.cached_data_column_indexes(block.slot(), &block_root)
                 {
                     custody_columns.retain(|col| !known_columns.contains(&col.index()));
                     if custody_columns.is_empty() {

beacon_node/beacon_chain/src/fetch_blobs/tests.rs

@@ -197,7 +197,7 @@ mod get_blobs_v2 {
             .returning(|_| None);
         mock_adapter
             .expect_cached_data_column_indexes()
-            .returning(|_| None);
+            .returning(|_, _| None);
         mock_process_engine_blobs_result(
             &mut mock_adapter,
             Ok(AvailabilityProcessingStatus::Imported(block_root)),