Encode Execution Engine Client Version In Graffiti

beacon_node/beacon_chain/Cargo.toml

@@ -31,6 +31,7 @@ operation_pool = { workspace = true }
 rayon = { workspace = true }
 serde = { workspace = true }
 ethereum_serde_utils = { workspace = true }
+lighthouse_version = { workspace = true }
 slog = { workspace = true }
 sloggers = { workspace = true }
 slot_clock = { workspace = true }

beacon_node/beacon_chain/src/beacon_chain.rs

@@ -30,6 +30,7 @@ use crate::eth1_finalization_cache::{Eth1FinalizationCache, Eth1FinalizationData
 use crate::events::ServerSentEventHandler;
 use crate::execution_payload::{get_execution_payload, NotifyExecutionLayer, PreparePayloadHandle};
 use crate::fork_choice_signal::{ForkChoiceSignalRx, ForkChoiceSignalTx, ForkChoiceWaitResult};
+use crate::graffiti_calculator::GraffitiCalculator;
 use crate::head_tracker::{HeadTracker, HeadTrackerReader, SszHeadTracker};
 use crate::historical_blocks::HistoricalBlockError;
 use crate::light_client_finality_update_verification::{
@@ -480,7 +481,7 @@ pub struct BeaconChain<T: BeaconChainTypes> {
     /// Logging to CLI, etc.
     pub(crate) log: Logger,
     /// Arbitrary bytes included in the blocks.
-    pub(crate) graffiti: Graffiti,
+    pub(crate) graffiti_calculator: GraffitiCalculator<T>,
     /// Optional slasher.
     pub slasher: Option<Arc<Slasher<T::EthSpec>>>,
     /// Provides monitoring of a set of explicitly defined validators.
@@ -4777,6 +4778,10 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         //
         // Perform the state advance and block-packing functions.
         let chain = self.clone();
+        let graffiti = self
+            .graffiti_calculator
+            .get_graffiti(validator_graffiti)
+            .await;
         let mut partial_beacon_block = self
             .task_executor
             .spawn_blocking_handle(
@@ -4786,7 +4791,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                         state_root_opt,
                         produce_at_slot,
                         randao_reveal,
-                        validator_graffiti,
+                        graffiti,
                         builder_boost_factor,
                         block_production_version,
                     )
@@ -4884,7 +4889,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         state_root_opt: Option<Hash256>,
         produce_at_slot: Slot,
         randao_reveal: Signature,
-        validator_graffiti: Option<Graffiti>,
+        graffiti: Graffiti,
         builder_boost_factor: Option<u64>,
         block_production_version: BlockProductionVersion,
     ) -> Result<PartialBeaconBlock<T::EthSpec>, BlockProductionError> {
@@ -4989,12 +4994,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         }
         drop(unagg_import_timer);
 
-        // Override the beacon node's graffiti with graffiti from the validator, if present.
-        let graffiti = match validator_graffiti {
-            Some(graffiti) => graffiti,
-            None => self.graffiti,
-        };
-
         let attestation_packing_timer =
             metrics::start_timer(&metrics::BLOCK_PRODUCTION_ATTESTATION_TIMES);
 

beacon_node/beacon_chain/src/builder.rs

@@ -7,6 +7,7 @@ use crate::eth1_chain::{CachingEth1Backend, SszEth1};
 use crate::eth1_finalization_cache::Eth1FinalizationCache;
 use crate::fork_choice_signal::ForkChoiceSignalTx;
 use crate::fork_revert::{reset_fork_choice_to_finalization, revert_to_fork_boundary};
+use crate::graffiti_calculator::{GraffitiCalculator, GraffitiOrigin};
 use crate::head_tracker::HeadTracker;
 use crate::light_client_server_cache::LightClientServerCache;
 use crate::migrate::{BackgroundMigrator, MigratorConfig};
@@ -39,8 +40,8 @@ use std::time::Duration;
 use store::{Error as StoreError, HotColdDB, ItemStore, KeyValueStoreOp};
 use task_executor::{ShutdownReason, TaskExecutor};
 use types::{
-    BeaconBlock, BeaconState, BlobSidecarList, ChainSpec, Checkpoint, Epoch, EthSpec, Graffiti,
-    Hash256, Signature, SignedBeaconBlock, Slot,
+    BeaconBlock, BeaconState, BlobSidecarList, ChainSpec, Checkpoint, Epoch, EthSpec, Hash256,
+    Signature, SignedBeaconBlock, Slot,
 };
 
 /// An empty struct used to "witness" all the `BeaconChainTypes` traits. It has no user-facing
@@ -96,7 +97,7 @@ pub struct BeaconChainBuilder<T: BeaconChainTypes> {
     spec: ChainSpec,
     chain_config: ChainConfig,
     log: Option<Logger>,
-    graffiti: Graffiti,
+    beacon_graffiti: GraffitiOrigin,
     slasher: Option<Arc<Slasher<T::EthSpec>>>,
     // Pending I/O batch that is constructed during building and should be executed atomically
     // alongside `PersistedBeaconChain` storage when `BeaconChainBuilder::build` is called.
@@ -139,7 +140,7 @@ where
             spec: E::default_spec(),
             chain_config: ChainConfig::default(),
             log: None,
-            graffiti: Graffiti::default(),
+            beacon_graffiti: GraffitiOrigin::default(),
             slasher: None,
             pending_io_batch: vec![],
             kzg: None,
@@ -649,9 +650,9 @@ where
         self
     }
 
-    /// Sets the `graffiti` field.
-    pub fn graffiti(mut self, graffiti: Graffiti) -> Self {
-        self.graffiti = graffiti;
+    /// Sets the `beacon_graffiti` field.
+    pub fn beacon_graffiti(mut self, beacon_graffiti: GraffitiOrigin) -> Self {
+        self.beacon_graffiti = beacon_graffiti;
         self
     }
 
@@ -920,7 +921,7 @@ where
             observed_attester_slashings: <_>::default(),
             observed_bls_to_execution_changes: <_>::default(),
             eth1_chain: self.eth1_chain,
-            execution_layer: self.execution_layer,
+            execution_layer: self.execution_layer.clone(),
             genesis_validators_root,
             genesis_time,
             canonical_head,
@@ -953,7 +954,12 @@ where
                 .shutdown_sender
                 .ok_or("Cannot build without a shutdown sender.")?,
             log: log.clone(),
-            graffiti: self.graffiti,
+            graffiti_calculator: GraffitiCalculator::new(
+                self.beacon_graffiti,
+                self.execution_layer,
+                slot_clock.slot_duration() * E::slots_per_epoch() as u32,
+                log.clone(),
+            ),
             slasher: self.slasher.clone(),
             validator_monitor: RwLock::new(validator_monitor),
             genesis_backfill_slot,