Add new fields to BeaconState to match v1.7.0-alpha.1.

consensus/state_processing/src/envelope_processing.rs

@@ -162,15 +162,6 @@ pub fn envelope_processing<E: EthSpec>(
         });
     };
 
-    // Verify the withdrawals root
-    envelope_verify!(
-        payload.withdrawals.tree_hash_root() == *state.latest_withdrawals_root()?,
-        EnvelopeProcessingError::WithdrawalsRootMismatch {
-            state: *state.latest_withdrawals_root()?,
-            envelope: payload.withdrawals.tree_hash_root(),
-        }
-    );
-
     // Verify the gas limit
     envelope_verify!(
         payload.gas_limit == committed_bid.gas_limit,

consensus/state_processing/src/per_block_processing/process_withdrawals.rs

@@ -130,8 +130,6 @@ pub mod gloas {
         let (expected_withdrawals, builder_withdrawals_count, partial_withdrawals_count) =
             get_expected_withdrawals(state, spec)?;
 
-        *state.latest_withdrawals_root_mut()? = expected_withdrawals.tree_hash_root();
-
         for withdrawal in expected_withdrawals.iter() {
             decrease_balance(
                 state,

consensus/state_processing/src/upgrade/gloas.rs

@@ -1,4 +1,3 @@
-use bls::Hash256;
 use milhouse::{List, Vector};
 use ssz_types::BitVector;
 use std::mem;
@@ -88,7 +87,10 @@ pub fn upgrade_state_to_gloas<E: EthSpec>(
         pending_deposits: pre.pending_deposits.clone(),
         pending_partial_withdrawals: pre.pending_partial_withdrawals.clone(),
         pending_consolidations: pre.pending_consolidations.clone(),
+        proposer_lookahead: mem::take(&mut pre.proposer_lookahead),
         // Gloas
+        builders: List::default(),
+        next_withdrawal_builder_index: 0,
         execution_payload_availability: BitVector::default(), // All bits set to false initially
         builder_pending_payments: Vector::new(vec![
             BuilderPendingPayment::default();
@@ -96,7 +98,7 @@ pub fn upgrade_state_to_gloas<E: EthSpec>(
         ])?,
         builder_pending_withdrawals: List::default(), // Empty list initially,
         latest_block_hash: pre.latest_execution_payload_header.block_hash,
-        latest_withdrawals_root: Hash256::default(),
+        payload_expected_withdrawals: List::default(),
         // Caches
         total_active_balance: pre.total_active_balance,
         progressive_balances_cache: mem::take(&mut pre.progressive_balances_cache),
@@ -105,7 +107,6 @@ pub fn upgrade_state_to_gloas<E: EthSpec>(
         exit_cache: mem::take(&mut pre.exit_cache),
         slashings_cache: mem::take(&mut pre.slashings_cache),
         epoch_cache: mem::take(&mut pre.epoch_cache),
-        proposer_lookahead: mem::take(&mut pre.proposer_lookahead),
     });
     Ok(post)
 }

consensus/types/presets/mainnet/gloas.yaml

@@ -1 +1,23 @@
 # Mainnet preset - Gloas
+
+# Misc
+# ---------------------------------------------------------------
+# 2**9 (= 512) validators
+PTC_SIZE: 512
+
+# Max operations per block
+# ---------------------------------------------------------------
+# 2**2 (= 4) attestations
+MAX_PAYLOAD_ATTESTATIONS: 4
+
+# State list lengths
+# ---------------------------------------------------------------
+# 2**40 (= 1,099,511,627,776) builder spots
+BUILDER_REGISTRY_LIMIT: 1099511627776
+# 2**20 (= 1,048,576) builder pending withdrawals
+BUILDER_PENDING_WITHDRAWALS_LIMIT: 1048576
+
+# Withdrawals processing
+# ---------------------------------------------------------------
+# 2**14 (= 16,384) builders
+MAX_BUILDERS_PER_WITHDRAWALS_SWEEP: 16384

consensus/types/presets/minimal/gloas.yaml

@@ -1 +1,23 @@
 # Minimal preset - Gloas
+
+# Misc
+# ---------------------------------------------------------------
+# [customized] 2**1 (= 2) validators
+PTC_SIZE: 2
+
+# Max operations per block
+# ---------------------------------------------------------------
+# 2**2 (= 4) attestations
+MAX_PAYLOAD_ATTESTATIONS: 4
+
+# State list lengths
+# ---------------------------------------------------------------
+# 2**40 (= 1,099,511,627,776) builder spots
+BUILDER_REGISTRY_LIMIT: 1099511627776
+# 2**20 (= 1,048,576) builder pending withdrawals
+BUILDER_PENDING_WITHDRAWALS_LIMIT: 1048576
+
+# Withdrawals processing
+# ---------------------------------------------------------------
+# [customized] 2**4 (= 16) builders
+MAX_BUILDERS_PER_WITHDRAWALS_SWEEP: 16

consensus/types/src/builder/builder.rs

@@ -0,0 +1,22 @@
+use crate::test_utils::TestRandom;
+use crate::{Address, Epoch};
+use bls::PublicKeyBytes;
+use serde::{Deserialize, Serialize};
+use ssz_derive::{Decode, Encode};
+use test_random_derive::TestRandom;
+use tree_hash_derive::TreeHash;
+
+pub type BuilderIndex = u64;
+
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+#[derive(
+    Debug, Clone, PartialEq, Eq, Serialize, Deserialize, Encode, Decode, TestRandom, TreeHash,
+)]
+pub struct Builder {
+    pub pubkey: PublicKeyBytes,
+    pub version: u8,
+    pub execution_address: Address,
+    pub balance: u64,
+    pub deposit_epoch: Epoch,
+    pub withdrawable_epoch: Epoch,
+}

consensus/types/src/builder/mod.rs

@@ -1,7 +1,9 @@
+mod builder;
 mod builder_bid;
 mod builder_pending_payment;
 mod builder_pending_withdrawal;
 
+pub use builder::{Builder, BuilderIndex};
 pub use builder_bid::{
     BuilderBid, BuilderBidBellatrix, BuilderBidCapella, BuilderBidDeneb, BuilderBidElectra,
     BuilderBidFulu, SignedBuilderBid,

consensus/types/src/core/eth_spec.rs

@@ -122,6 +122,10 @@ pub trait EthSpec: 'static + Default + Sync + Send + Clone + Debug + PartialEq +
     type CellsPerExtBlob: Unsigned + Clone + Sync + Send + Debug + PartialEq;
     type NumberOfColumns: Unsigned + Clone + Sync + Send + Debug + PartialEq;
     type ProposerLookaheadSlots: Unsigned + Clone + Sync + Send + Debug + PartialEq;
+    /*
+     * New in Gloas
+     */
+    type BuilderRegistryLimit: Unsigned + Clone + Sync + Send + Debug + PartialEq;
     /*
      * Derived values (set these CAREFULLY)
      */
@@ -484,6 +488,7 @@ impl EthSpec for MainnetEthSpec {
     type CellsPerExtBlob = U128;
     type NumberOfColumns = U128;
     type ProposerLookaheadSlots = U64; // Derived from (MIN_SEED_LOOKAHEAD + 1) * SLOTS_PER_EPOCH
+    type BuilderRegistryLimit = U1099511627776;
     type SyncSubcommitteeSize = U128; // 512 committee size / 4 sync committee subnet count
     type MaxPendingAttestations = U4096; // 128 max attestations * 32 slots per epoch
     type SlotsPerEth1VotingPeriod = U2048; // 64 epochs * 32 slots per epoch
@@ -574,7 +579,8 @@ impl EthSpec for MinimalEthSpec {
         MaxDepositRequestsPerPayload,
         MaxWithdrawalRequestsPerPayload,
         PTCSize,
-        MaxPayloadAttestations
+        MaxPayloadAttestations,
+        BuilderRegistryLimit
     });
 
     fn default_spec() -> ChainSpec {
@@ -647,6 +653,7 @@ impl EthSpec for GnosisEthSpec {
     type CellsPerExtBlob = U128;
     type NumberOfColumns = U128;
     type ProposerLookaheadSlots = U32; // Derived from (MIN_SEED_LOOKAHEAD + 1) * SLOTS_PER_EPOCH
+    type BuilderRegistryLimit = U1099511627776;
     type PTCSize = U512;
     type MaxPayloadAttestations = U2;
 

consensus/types/src/state/beacon_state.rs

@@ -23,7 +23,8 @@ use tree_hash_derive::TreeHash;
 use typenum::Unsigned;
 
 use crate::{
-    BuilderPendingPayment, BuilderPendingWithdrawal, ExecutionBlockHash, ExecutionPayloadBid,
+    Builder, BuilderIndex, BuilderPendingPayment, BuilderPendingWithdrawal, ExecutionBlockHash,
+    ExecutionPayloadBid, Withdrawal,
     attestation::{
         AttestationData, AttestationDuty, BeaconCommittee, Checkpoint, CommitteeIndex, PTC,
         ParticipationFlags, PendingAttestation,
@@ -608,8 +609,17 @@ where
     #[superstruct(only(Fulu, Gloas))]
     #[serde(with = "ssz_types::serde_utils::quoted_u64_fixed_vec")]
     pub proposer_lookahead: Vector<u64, E::ProposerLookaheadSlots>,
-
     // Gloas
+    #[compare_fields(as_iter)]
+    #[test_random(default)]
+    #[superstruct(only(Gloas))]
+    pub builders: List<Builder, E::BuilderRegistryLimit>,
+
+    #[metastruct(exclude_from(tree_lists))]
+    #[serde(with = "serde_utils::quoted_u64")]
+    #[superstruct(only(Gloas), partial_getter(copy))]
+    pub next_withdrawal_builder_index: BuilderIndex,
+
     #[test_random(default)]
     #[superstruct(only(Gloas))]
     #[metastruct(exclude_from(tree_lists))]
@@ -631,10 +641,10 @@ where
     #[metastruct(exclude_from(tree_lists))]
     pub latest_block_hash: ExecutionBlockHash,
 
+    #[compare_fields(as_iter)]
     #[test_random(default)]
     #[superstruct(only(Gloas))]
-    #[metastruct(exclude_from(tree_lists))]
+    pub payload_expected_withdrawals: List<Withdrawal, E::MaxWithdrawalsPerPayload>,
-    pub latest_withdrawals_root: Hash256,
 
     // Caching (not in the spec)
     #[serde(skip_serializing, skip_deserializing)]