Delete legacy payload reconstruction (#6213)

* Delete legacy payload reconstruction

* Delete unneeded failing test

* Merge remote-tracking branch 'origin/unstable' into remove-more-ethers

* Merge remote-tracking branch 'origin/unstable' into remove-more-ethers

* Cleanups

beacon_node/beacon_chain/src/beacon_block_streamer.rs

@@ -710,10 +710,8 @@ impl From<Error> for BeaconChainError {
 mod tests {
     use crate::beacon_block_streamer::{BeaconBlockStreamer, CheckCaches};
     use crate::test_utils::{test_spec, BeaconChainHarness, EphemeralHarnessType};
-    use execution_layer::test_utils::{Block, DEFAULT_ENGINE_CAPABILITIES};
-    use execution_layer::EngineCapabilities;
+    use execution_layer::test_utils::Block;
     use std::sync::LazyLock;
-    use std::time::Duration;
     use tokio::sync::mpsc;
     use types::{
         ChainSpec, Epoch, EthSpec, FixedBytesExtended, Hash256, Keypair, MinimalEthSpec, Slot,
@@ -864,147 +862,4 @@ mod tests {
             }
         }
     }
-
-    #[tokio::test]
-    async fn check_fallback_altair_to_electra() {
-        let slots_per_epoch = MinimalEthSpec::slots_per_epoch() as usize;
-        let num_epochs = 10;
-        let bellatrix_fork_epoch = 2usize;
-        let capella_fork_epoch = 4usize;
-        let deneb_fork_epoch = 6usize;
-        let electra_fork_epoch = 8usize;
-        let num_blocks_produced = num_epochs * slots_per_epoch;
-
-        let mut spec = test_spec::<MinimalEthSpec>();
-        spec.altair_fork_epoch = Some(Epoch::new(0));
-        spec.bellatrix_fork_epoch = Some(Epoch::new(bellatrix_fork_epoch as u64));
-        spec.capella_fork_epoch = Some(Epoch::new(capella_fork_epoch as u64));
-        spec.deneb_fork_epoch = Some(Epoch::new(deneb_fork_epoch as u64));
-        spec.electra_fork_epoch = Some(Epoch::new(electra_fork_epoch as u64));
-
-        let harness = get_harness(VALIDATOR_COUNT, spec);
-
-        // modify execution engine so it doesn't support engine_payloadBodiesBy* methods
-        let mock_execution_layer = harness.mock_execution_layer.as_ref().unwrap();
-        mock_execution_layer
-            .server
-            .set_engine_capabilities(EngineCapabilities {
-                get_payload_bodies_by_hash_v1: false,
-                get_payload_bodies_by_range_v1: false,
-                ..DEFAULT_ENGINE_CAPABILITIES
-            });
-        // refresh capabilities cache
-        harness
-            .chain
-            .execution_layer
-            .as_ref()
-            .unwrap()
-            .get_engine_capabilities(Some(Duration::ZERO))
-            .await
-            .unwrap();
-
-        // go to bellatrix fork
-        harness
-            .extend_slots(bellatrix_fork_epoch * slots_per_epoch)
-            .await;
-        // extend half an epoch
-        harness.extend_slots(slots_per_epoch / 2).await;
-        // trigger merge
-        harness
-            .execution_block_generator()
-            .move_to_terminal_block()
-            .expect("should move to terminal block");
-        let timestamp = harness.get_timestamp_at_slot() + harness.spec.seconds_per_slot;
-        harness
-            .execution_block_generator()
-            .modify_last_block(|block| {
-                if let Block::PoW(terminal_block) = block {
-                    terminal_block.timestamp = timestamp;
-                }
-            });
-        // finish out merge epoch
-        harness.extend_slots(slots_per_epoch / 2).await;
-        // finish rest of epochs
-        harness
-            .extend_slots((num_epochs - 1 - bellatrix_fork_epoch) * slots_per_epoch)
-            .await;
-
-        let head = harness.chain.head_snapshot();
-        let state = &head.beacon_state;
-
-        assert_eq!(
-            state.slot(),
-            Slot::new(num_blocks_produced as u64),
-            "head should be at the current slot"
-        );
-        assert_eq!(
-            state.current_epoch(),
-            num_blocks_produced as u64 / MinimalEthSpec::slots_per_epoch(),
-            "head should be at the expected epoch"
-        );
-        assert_eq!(
-            state.current_justified_checkpoint().epoch,
-            state.current_epoch() - 1,
-            "the head should be justified one behind the current epoch"
-        );
-        assert_eq!(
-            state.finalized_checkpoint().epoch,
-            state.current_epoch() - 2,
-            "the head should be finalized two behind the current epoch"
-        );
-
-        let block_roots: Vec<Hash256> = harness
-            .chain
-            .forwards_iter_block_roots(Slot::new(0))
-            .expect("should get iter")
-            .map(Result::unwrap)
-            .map(|(root, _)| root)
-            .collect();
-
-        let mut expected_blocks = vec![];
-        // get all blocks the old fashioned way
-        for root in &block_roots {
-            let block = harness
-                .chain
-                .get_block(root)
-                .await
-                .expect("should get block")
-                .expect("block should exist");
-            expected_blocks.push(block);
-        }
-
-        for epoch in 0..num_epochs {
-            let start = epoch * slots_per_epoch;
-            let mut epoch_roots = vec![Hash256::zero(); slots_per_epoch];
-            epoch_roots[..].clone_from_slice(&block_roots[start..(start + slots_per_epoch)]);
-            let streamer = BeaconBlockStreamer::new(&harness.chain, CheckCaches::No)
-                .expect("should create streamer");
-            let (block_tx, mut block_rx) = mpsc::unbounded_channel();
-            streamer.stream(epoch_roots.clone(), block_tx).await;
-
-            for (i, expected_root) in epoch_roots.into_iter().enumerate() {
-                let (found_root, found_block_result) =
-                    block_rx.recv().await.expect("should get block");
-
-                assert_eq!(
-                    found_root, expected_root,
-                    "expected block root should match"
-                );
-                match found_block_result.as_ref() {
-                    Ok(maybe_block) => {
-                        let found_block = maybe_block.clone().expect("should have a block");
-                        let expected_block = expected_blocks
-                            .get(start + i)
-                            .expect("should get expected block");
-                        assert_eq!(
-                            found_block.as_ref(),
-                            expected_block,
-                            "expected block should match found block"
-                        );
-                    }
-                    Err(e) => panic!("Error retrieving block {}: {:?}", expected_root, e),
-                }
-            }
-        }
-    }
 }

beacon_node/beacon_chain/src/bellatrix_readiness.rs

@@ -4,7 +4,6 @@
 use crate::{BeaconChain, BeaconChainError as Error, BeaconChainTypes};
 use execution_layer::BlockByNumberQuery;
 use serde::{Deserialize, Serialize, Serializer};
-use slog::debug;
 use std::fmt;
 use std::fmt::Write;
 use types::*;
@@ -199,7 +198,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         else {
             return Ok(GenesisExecutionPayloadStatus::Irrelevant);
         };
-        let fork = self.spec.fork_name_at_epoch(Epoch::new(0));
 
         let execution_layer = self
             .execution_layer
@@ -222,49 +220,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             });
         }
 
-        // Double-check the block by reconstructing it.
-        let execution_payload = execution_layer
-            .get_payload_by_hash_legacy(exec_block_hash, fork)
-            .await
-            .map_err(|e| Error::ExecutionLayerGetBlockByHashFailed(Box::new(e)))?
-            .ok_or(Error::BlockHashMissingFromExecutionLayer(exec_block_hash))?;
-
-        // Verify payload integrity.
-        let header_from_payload = ExecutionPayloadHeader::from(execution_payload.to_ref());
-
-        let got_transactions_root = header_from_payload.transactions_root();
-        let expected_transactions_root = latest_execution_payload_header.transactions_root();
-        let got_withdrawals_root = header_from_payload.withdrawals_root().ok();
-        let expected_withdrawals_root = latest_execution_payload_header.withdrawals_root().ok();
-
-        if got_transactions_root != expected_transactions_root {
-            return Ok(GenesisExecutionPayloadStatus::TransactionsRootMismatch {
-                got: got_transactions_root,
-                expected: expected_transactions_root,
-            });
-        }
-
-        if let Some(expected) = expected_withdrawals_root {
-            if let Some(got) = got_withdrawals_root {
-                if got != expected {
-                    return Ok(GenesisExecutionPayloadStatus::WithdrawalsRootMismatch {
-                        got,
-                        expected,
-                    });
-                }
-            }
-        }
-
-        if header_from_payload.to_ref() != latest_execution_payload_header {
-            debug!(
-                self.log,
-                "Genesis execution payload reconstruction failure";
-                "consensus_node_header" => ?latest_execution_payload_header,
-                "execution_node_header" => ?header_from_payload
-            );
-            return Ok(GenesisExecutionPayloadStatus::OtherMismatch);
-        }
-
         Ok(GenesisExecutionPayloadStatus::Correct(exec_block_hash))
     }
 }