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Gloas alpha spec 8 (#9315)

Browse Source 
https://github.com/ethereum/consensus-specs/releases/tag/v1.7.0-alpha.8


  


Co-Authored-By: Eitan Seri-Levi <eserilev@ucsc.edu>

Co-Authored-By: Michael Sproul <michael@sigmaprime.io>
This commit is contained in:
Eitan Seri-Levi
2026-05-21 23:21:20 -07:00
committed by GitHub
parent b5d5644eeb
commit 60abd4b5b9
36 changed files with 863 additions and 243 deletions
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44
consensus/state_processing/src/per_block_processing/process_operations.rs
View File

@@ -916,25 +916,24 @@ pub fn process_deposit_requests_post_gloas<E: EthSpec>(
/// Check if there is a pending deposit for a new validator with the given pubkey.
// TODO(gloas): cache the deposit signature validation or remove this loop entirely if possible,
// it is `O(n * m)` where `n` is max 8192 and `m` is max 128M.
fn is_pending_validator<E: EthSpec>(
state: &BeaconState<E>,
pub fn is_pending_validator<'a>(
pending_deposits: impl IntoIterator<Item = &'a PendingDeposit>,
pubkey: &PublicKeyBytes,
spec: &ChainSpec,
) -> Result<bool, BlockProcessingError> {
for deposit in state.pending_deposits()?.iter() {
if deposit.pubkey == *pubkey {
let deposit_data = DepositData {
pubkey: deposit.pubkey,
withdrawal_credentials: deposit.withdrawal_credentials,
amount: deposit.amount,
signature: deposit.signature.clone(),
};
if is_valid_deposit_signature(&deposit_data, spec).is_ok() {
return Ok(true);
}
}
}
Ok(false)
) -> bool {
pending_deposits.into_iter().any(|deposit| {
deposit.pubkey == *pubkey
&& is_valid_deposit_signature(
&DepositData {
pubkey: deposit.pubkey,
withdrawal_credentials: deposit.withdrawal_credentials,
amount: deposit.amount,
signature: deposit.signature.clone(),
},
spec,
)
.is_ok()
})
}
pub fn process_deposit_request_post_gloas<E: EthSpec>(
@@ -964,7 +963,7 @@ pub fn process_deposit_request_post_gloas<E: EthSpec>(
if is_builder
|| (has_builder_prefix
&& !is_validator
&& !is_pending_validator(state, &deposit_request.pubkey, spec)?)
&& !is_pending_validator(state.pending_deposits()?, &deposit_request.pubkey, spec))
{
// Apply builder deposits immediately
apply_deposit_for_builder(
@@ -1003,7 +1002,7 @@ pub fn apply_deposit_for_builder<E: EthSpec>(
signature: SignatureBytes,
slot: Slot,
spec: &ChainSpec,
) -> Result<(), BeaconStateError> {
) -> Result<Option<BuilderIndex>, BeaconStateError> {
match builder_index_opt {
None => {
// Verify the deposit signature (proof of possession) which is not checked by the deposit contract
@@ -1014,13 +1013,16 @@ pub fn apply_deposit_for_builder<E: EthSpec>(
signature,
};
if is_valid_deposit_signature(&deposit_data, spec).is_ok() {
state.add_builder_to_registry(
let builder_index = state.add_builder_to_registry(
pubkey,
withdrawal_credentials,
amount,
slot,
spec,
)?;
Ok(Some(builder_index))
} else {
Ok(None)
}
}
Some(builder_index) => {
@@ -1030,9 +1032,9 @@ pub fn apply_deposit_for_builder<E: EthSpec>(
.ok_or(BeaconStateError::UnknownBuilder(builder_index))?
.balance
.safe_add_assign(amount)?;
Ok(Some(builder_index))
}
}
Ok(())
}
// Make sure to build the pubkey cache before calling this function

94
consensus/state_processing/src/upgrade/gloas.rs
View File

@@ -1,18 +1,16 @@
use crate::per_block_processing::{
is_valid_deposit_signature, process_operations::apply_deposit_for_builder,
};
use crate::per_block_processing::process_operations::apply_deposit_for_builder;
use crate::per_block_processing::process_operations::is_pending_validator;
use milhouse::{List, Vector};
use safe_arith::SafeArith;
use ssz_types::BitVector;
use ssz_types::FixedVector;
use std::collections::HashSet;
use std::collections::HashMap;
use std::mem;
use tree_hash::TreeHash;
use typenum::Unsigned;
use types::{
BeaconState, BeaconStateError as Error, BeaconStateGloas, BuilderPendingPayment, ChainSpec,
DepositData, EthSpec, ExecutionPayloadBid, ExecutionRequests, Fork,
is_builder_withdrawal_credential,
EthSpec, ExecutionPayloadBid, ExecutionRequests, Fork, is_builder_withdrawal_credential,
};
/// Transform a `Fulu` state into a `Gloas` state.
@@ -80,6 +78,7 @@ pub fn upgrade_state_to_gloas<E: EthSpec>(
// Execution Bid
latest_execution_payload_bid: ExecutionPayloadBid {
block_hash: pre.latest_execution_payload_header.block_hash,
gas_limit: pre.latest_execution_payload_header.gas_limit,
execution_requests_root: ExecutionRequests::<E>::default().tree_hash_root(),
..Default::default()
},
@@ -167,66 +166,57 @@ fn onboard_builders_from_pending_deposits<E: EthSpec>(
state: &mut BeaconState<E>,
spec: &ChainSpec,
) -> Result<(), Error> {
// Rather than tracking all `validator_pubkeys` in one place as the spec does, we keep a
// hashset for *just* the new validator pubkeys, and use the state's efficient
// `get_validator_index` function instead of an O(n) iteration over the full validator list.
let mut new_validator_pubkeys = HashSet::new();
// Clone pending deposits to avoid borrow conflicts when mutating state.
let current_pending_deposits = state.pending_deposits()?.clone();
let mut pending_deposits = List::empty();
// TODO(gloas): introduce a global builder pubkey cache, see:
// https://github.com/sigp/lighthouse/issues/8783
let mut builder_pubkey_to_index = state
.builders()?
.iter()
.enumerate()
.map(|(i, b)| (b.pubkey, i as u64))
.collect::<HashMap<_, _>>();
for deposit in &current_pending_deposits {
// Deposits for existing validators stay in the pending queue.
if new_validator_pubkeys.contains(&deposit.pubkey)
|| state.get_validator_index(&deposit.pubkey)?.is_some()
{
if state.get_validator_index(&deposit.pubkey)?.is_some() {
pending_deposits.push(deposit.clone())?;
continue;
}
// Re-scan builder list each iteration because `apply_deposit_for_builder` may add
// new builders to the registry.
// TODO(gloas): this linear scan could be optimized, see:
// https://github.com/sigp/lighthouse/issues/8783
let builder_index = state
.builders()?
.iter()
.position(|b| b.pubkey == deposit.pubkey);
if !builder_pubkey_to_index.contains_key(&deposit.pubkey) {
// Deposits without builder withdrawal credentials are for new validators.
if !is_builder_withdrawal_credential(deposit.withdrawal_credentials, spec) {
pending_deposits.push(deposit.clone())?;
continue;
}
let has_builder_credentials =
is_builder_withdrawal_credential(deposit.withdrawal_credentials, spec);
if builder_index.is_some() || has_builder_credentials {
let builder_index_opt = builder_index.map(|i| i as u64);
apply_deposit_for_builder(
state,
builder_index_opt,
deposit.pubkey,
deposit.withdrawal_credentials,
deposit.amount,
deposit.signature.clone(),
deposit.slot,
spec,
)?;
continue;
// If there is a valid pending deposit for a new validator with this pubkey,
// keep this deposit in the pending queue to be applied to that validator later.
if is_pending_validator(&pending_deposits, &deposit.pubkey, spec) {
pending_deposits.push(deposit.clone())?;
continue;
}
}
// If there is a pending deposit for a new validator that has a valid signature,
// track the pubkey so that subsequent builder deposits for the same pubkey stay
// in pending (applied to the validator later) rather than creating a builder.
// Deposits with invalid signatures are dropped since they would fail in
// apply_pending_deposit anyway.
let deposit_data = DepositData {
pubkey: deposit.pubkey,
withdrawal_credentials: deposit.withdrawal_credentials,
amount: deposit.amount,
signature: deposit.signature.clone(),
};
if is_valid_deposit_signature(&deposit_data, spec).is_ok() {
new_validator_pubkeys.insert(deposit.pubkey);
pending_deposits.push(deposit.clone())?;
let builder_index = builder_pubkey_to_index.get(&deposit.pubkey).copied();
if let Some(new_builder_index) = apply_deposit_for_builder(
state,
builder_index,
deposit.pubkey,
deposit.withdrawal_credentials,
deposit.amount,
deposit.signature.clone(),
deposit.slot,
spec,
)? {
builder_pubkey_to_index
.entry(deposit.pubkey)
.or_insert(new_builder_index);
}
}