gloas block production

Author: shane-moore

common/eth2/src/lib.rs

@@ -1728,6 +1728,41 @@ pub struct ProduceBlockV3Metadata {
     pub consensus_block_value: Uint256,
 }
 
+/// Metadata about a `ExecutionPayloadEnvelope` response which is returned in the headers.
+#[derive(Debug, Deserialize, Serialize)]
+pub struct ExecutionPayloadEnvelopeMetadata {
+    // The consensus version is serialized & deserialized by `ForkVersionedResponse`.
+    #[serde(
+        skip_serializing,
+        skip_deserializing,
+        default = "dummy_consensus_version"
+    )]
+    pub consensus_version: ForkName,
+}
+
+/// Response from the `/eth/v4/validator/blocks/{slot}` endpoint.
+///
+/// V4 is specific to post-Gloas forks and always returns a BeaconBlock directly.
+/// No blinded/unblinded concept exists in Gloas.
+pub type ProduceBlockV4Response<E> = BeaconBlock<E>;
+
+pub type JsonProduceBlockV4Response<E> =
+    ForkVersionedResponse<ProduceBlockV4Response<E>, ProduceBlockV4Metadata>;
+
+/// Metadata about a `ProduceBlockV4Response` which is returned in the body & headers.
+#[derive(Debug, Deserialize, Serialize)]
+pub struct ProduceBlockV4Metadata {
+    // The consensus version is serialized & deserialized by `ForkVersionedResponse`.
+    #[serde(
+        skip_serializing,
+        skip_deserializing,
+        default = "dummy_consensus_version"
+    )]
+    pub consensus_version: ForkName,
+    #[serde(with = "serde_utils::u256_dec")]
+    pub consensus_block_value: Uint256,
+}
+
 impl<E: EthSpec> FullBlockContents<E> {
     pub fn new(block: BeaconBlock<E>, blob_data: Option<(KzgProofs<E>, BlobsList<E>)>) -> Self {
         match blob_data {
@@ -1884,6 +1919,40 @@ impl TryFrom<&HeaderMap> for ProduceBlockV3Metadata {
     }
 }
 
+impl TryFrom<&HeaderMap> for ExecutionPayloadEnvelopeMetadata {
+    type Error = String;
+
+    fn try_from(headers: &HeaderMap) -> Result<Self, Self::Error> {
+        let consensus_version = parse_required_header(headers, CONSENSUS_VERSION_HEADER, |s| {
+            s.parse::<ForkName>()
+                .map_err(|e| format!("invalid {CONSENSUS_VERSION_HEADER}: {e:?}"))
+        })?;
+
+        Ok(ExecutionPayloadEnvelopeMetadata { consensus_version })
+    }
+}
+
+impl TryFrom<&HeaderMap> for ProduceBlockV4Metadata {
+    type Error = String;
+
+    fn try_from(headers: &HeaderMap) -> Result<Self, Self::Error> {
+        let consensus_version = parse_required_header(headers, CONSENSUS_VERSION_HEADER, |s| {
+            s.parse::<ForkName>()
+                .map_err(|e| format!("invalid {CONSENSUS_VERSION_HEADER}: {e:?}"))
+        })?;
+        let consensus_block_value =
+            parse_required_header(headers, CONSENSUS_BLOCK_VALUE_HEADER, |s| {
+                Uint256::from_str_radix(s, 10)
+                    .map_err(|e| format!("invalid {CONSENSUS_BLOCK_VALUE_HEADER}: {e:?}"))
+            })?;
+
+        Ok(ProduceBlockV4Metadata {
+            consensus_version,
+            consensus_block_value,
+        })
+    }
+}
+
 /// A wrapper over a [`SignedBeaconBlock`] or a [`SignedBlockContents`].
 #[derive(Clone, Debug, PartialEq, Encode, Serialize)]
 #[serde(untagged)]

common/eth2/src/types.rs

@@ -18,12 +18,12 @@ use task_executor::TaskExecutor;
 use tracing::{error, info, warn};
 use types::{
     AbstractExecPayload, Address, AggregateAndProof, Attestation, BeaconBlock, BlindedPayload,
-    ChainSpec, ContributionAndProof, Domain, Epoch, EthSpec, Fork, Graffiti, Hash256,
-    PublicKeyBytes, SelectionProof, Signature, SignedAggregateAndProof, SignedBeaconBlock,
-    SignedContributionAndProof, SignedRoot, SignedValidatorRegistrationData, SignedVoluntaryExit,
-    Slot, SyncAggregatorSelectionData, SyncCommitteeContribution, SyncCommitteeMessage,
-    SyncSelectionProof, SyncSubnetId, ValidatorRegistrationData, VoluntaryExit,
-    graffiti::GraffitiString,
+    ChainSpec, ContributionAndProof, Domain, Epoch, EthSpec, ExecutionPayloadEnvelope, Fork,
+    Graffiti, Hash256, PublicKeyBytes, SelectionProof, Signature, SignedAggregateAndProof,
+    SignedBeaconBlock, SignedContributionAndProof, SignedExecutionPayloadEnvelope, SignedRoot,
+    SignedValidatorRegistrationData, SignedVoluntaryExit, Slot, SyncAggregatorSelectionData,
+    SyncCommitteeContribution, SyncCommitteeMessage, SyncSelectionProof, SyncSubnetId,
+    ValidatorRegistrationData, VoluntaryExit, graffiti::GraffitiString,
 };
 use validator_store::{
     DoppelgangerStatus, Error as ValidatorStoreError, ProposalData, SignedBlock, UnsignedBlock,
@@ -745,6 +745,45 @@ impl<T: SlotClock + 'static, E: EthSpec> ValidatorStore for LighthouseValidatorS
         }
     }
 
+    async fn sign_block_gloas(
+        &self,
+        validator_pubkey: PublicKeyBytes,
+        block: &BeaconBlock<E>,
+        current_slot: Slot,
+    ) -> Result<Arc<SignedBeaconBlock<E>>, Error> {
+        let beacon_block = block.clone();
+        self.sign_abstract_block(validator_pubkey, beacon_block, current_slot)
+            .await
+            .map(|signed_block| Arc::new(signed_block))
+    }
+
+    async fn sign_execution_payload_envelope(
+        &self,
+        validator_pubkey: PublicKeyBytes,
+        envelope: &ExecutionPayloadEnvelope<E>,
+        current_slot: Slot,
+    ) -> Result<SignedExecutionPayloadEnvelope<E>, Error> {
+        let signing_epoch = current_slot.epoch(E::slots_per_epoch());
+        let signing_context = self.signing_context(Domain::BeaconBuilder, signing_epoch);
+
+        let signing_method = self.doppelganger_checked_signing_method(validator_pubkey)?;
+
+        let signature = signing_method
+            .get_signature::<E, BlindedPayload<E>>(
+                SignableMessage::ExecutionPayloadEnvelope(envelope),
+                signing_context,
+                &self.spec,
+                &self.task_executor,
+            )
+            .await
+            .map_err(Error::SpecificError)?;
+
+        let signed_envelope =
+            SignedExecutionPayloadEnvelope::from_envelope(envelope.clone(), signature);
+
+        Ok(signed_envelope)
+    }
+
     async fn sign_attestation(
         &self,
         validator_pubkey: PublicKeyBytes,

validator_client/lighthouse_validator_store/src/lib.rs

@@ -47,6 +47,7 @@ pub enum SignableMessage<'a, E: EthSpec, Payload: AbstractExecPayload<E> = FullP
     SignedContributionAndProof(&'a ContributionAndProof<E>),
     ValidatorRegistration(&'a ValidatorRegistrationData),
     VoluntaryExit(&'a VoluntaryExit),
+    ExecutionPayloadEnvelope(&'a ExecutionPayloadEnvelope<E>),
 }
 
 impl<E: EthSpec, Payload: AbstractExecPayload<E>> SignableMessage<'_, E, Payload> {
@@ -68,6 +69,7 @@ impl<E: EthSpec, Payload: AbstractExecPayload<E>> SignableMessage<'_, E, Payload
             SignableMessage::SignedContributionAndProof(c) => c.signing_root(domain),
             SignableMessage::ValidatorRegistration(v) => v.signing_root(domain),
             SignableMessage::VoluntaryExit(exit) => exit.signing_root(domain),
+            SignableMessage::ExecutionPayloadEnvelope(envelope) => envelope.signing_root(domain),
         }
     }
 }
@@ -228,6 +230,9 @@ impl SigningMethod {
                         Web3SignerObject::ValidatorRegistration(v)
                     }
                     SignableMessage::VoluntaryExit(e) => Web3SignerObject::VoluntaryExit(e),
+                    SignableMessage::ExecutionPayloadEnvelope(envelope) => {
+                        Web3SignerObject::ExecutionPayloadEnvelope(envelope)
+                    }
                 };
 
                 // Determine the Web3Signer message type.

validator_client/signing_method/src/lib.rs

@@ -18,6 +18,7 @@ pub enum MessageType {
     SyncCommitteeSelectionProof,
     SyncCommitteeContributionAndProof,
     ValidatorRegistration,
+    ExecutionPayloadEnvelope,
 }
 
 #[derive(Debug, PartialEq, Copy, Clone, Serialize)]
@@ -74,6 +75,7 @@ pub enum Web3SignerObject<'a, E: EthSpec, Payload: AbstractExecPayload<E>> {
     SyncAggregatorSelectionData(&'a SyncAggregatorSelectionData),
     ContributionAndProof(&'a ContributionAndProof<E>),
     ValidatorRegistration(&'a ValidatorRegistrationData),
+    ExecutionPayloadEnvelope(&'a ExecutionPayloadEnvelope<E>),
 }
 
 impl<'a, E: EthSpec, Payload: AbstractExecPayload<E>> Web3SignerObject<'a, E, Payload> {
@@ -139,6 +141,7 @@ impl<'a, E: EthSpec, Payload: AbstractExecPayload<E>> Web3SignerObject<'a, E, Pa
                 MessageType::SyncCommitteeContributionAndProof
             }
             Web3SignerObject::ValidatorRegistration(_) => MessageType::ValidatorRegistration,
+            Web3SignerObject::ExecutionPayloadEnvelope(_) => MessageType::ExecutionPayloadEnvelope,
         }
     }
 }

validator_client/signing_method/src/web3signer.rs

@@ -9,6 +9,10 @@ pub const BEACON_BLOCK: &str = "beacon_block";
 pub const BEACON_BLOCK_HTTP_GET: &str = "beacon_block_http_get";
 pub const BEACON_BLOCK_HTTP_POST: &str = "beacon_block_http_post";
 pub const BLINDED_BEACON_BLOCK_HTTP_POST: &str = "blinded_beacon_block_http_post";
+pub const EXECUTION_PAYLOAD_ENVELOPE_HTTP_GET: &str = "execution_payload_envelope_http_get";
+pub const EXECUTION_PAYLOAD_ENVELOPE_HTTP_POST: &str = "execution_payload_envelope_http_post";
+pub const EXECUTION_PAYLOAD_ENVELOPE_SIGN: &str = "execution_payload_envelope_sign";
+pub const EXECUTION_PAYLOAD_ENVELOPE: &str = "execution_payload_envelope";
 pub const ATTESTATIONS: &str = "attestations";
 pub const ATTESTATIONS_HTTP_GET: &str = "attestations_http_get";
 pub const ATTESTATIONS_HTTP_POST: &str = "attestations_http_post";
@@ -237,6 +241,12 @@ pub static BLOCK_SIGNING_TIMES: LazyLock<Result<Histogram>> = LazyLock::new(|| {
         "Duration to obtain a signature for a block",
     )
 });
+pub static ENVELOPE_SIGNING_TIMES: LazyLock<Result<Histogram>> = LazyLock::new(|| {
+    try_create_histogram(
+        "vc_envelope_signing_times_seconds",
+        "Duration to obtain a signature for an execution payload envelope",
+    )
+});
 
 pub static ATTESTATION_DUTY: LazyLock<Result<IntGaugeVec>> = LazyLock::new(|| {
     try_create_int_gauge_vec(