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Unimplement TreeHash for BeaconState (#6083)

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* Unimplement `TreeHash` for `BeaconState`
This commit is contained in:
Michael Sproul
2024-07-12 23:06:08 +10:00
committed by GitHub
parent 0c0b56d9e8
commit 2f0af2be89
16 changed files with 117 additions and 70 deletions
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10
beacon_node/beacon_chain/src/block_verification.rs
View File

@@ -93,7 +93,6 @@ use std::io::Write;
use std::sync::Arc;
use store::{Error as DBError, HotStateSummary, KeyValueStore, StoreOp};
use task_executor::JoinHandle;
use tree_hash::TreeHash;
use types::{
BeaconBlockRef, BeaconState, BeaconStateError, ChainSpec, Epoch, EthSpec, ExecutionBlockHash,
Hash256, InconsistentFork, PublicKey, PublicKeyBytes, RelativeEpoch, SignedBeaconBlock,
@@ -2107,7 +2106,14 @@ pub fn verify_header_signature<T: BeaconChainTypes, Err: BlockBlobError>(
fn write_state<E: EthSpec>(prefix: &str, state: &BeaconState<E>, log: &Logger) {
if WRITE_BLOCK_PROCESSING_SSZ {
let root = state.tree_hash_root();
let mut state = state.clone();
let Ok(root) = state.canonical_root() else {
error!(
log,
"Unable to hash state for writing";
);
return;
};
let filename = format!("{}_slot_{}_root_{}.ssz", prefix, state.slot(), root);
let mut path = std::env::temp_dir().join("lighthouse");
let _ = fs::create_dir_all(path.clone());

4
beacon_node/beacon_chain/src/builder.rs
View File

@@ -1195,7 +1195,7 @@ mod test {
let head = chain.head_snapshot();
let state = &head.beacon_state;
let mut state = head.beacon_state.clone();
let block = &head.beacon_block;
assert_eq!(state.slot(), Slot::new(0), "should start from genesis");
@@ -1206,7 +1206,7 @@ mod test {
);
assert_eq!(
block.state_root(),
state.canonical_root(),
state.canonical_root().unwrap(),
"block should have correct state root"
);
assert_eq!(

4
beacon_node/beacon_chain/src/data_availability_checker/overflow_lru_cache.rs
View File

@@ -720,12 +720,12 @@ mod test {
let mut state_roots = Vec::new();
// Get enough blocks to fill the cache to capacity, ensuring all blocks have blobs
while pending_blocks.len() < capacity {
let (pending_block, _) = availability_pending_block(&harness).await;
let (mut pending_block, _) = availability_pending_block(&harness).await;
if pending_block.num_blobs_expected() == 0 {
// we need blocks with blobs
continue;
}
let state_root = pending_block.import_data.state.canonical_root();
let state_root = pending_block.import_data.state.canonical_root().unwrap();
states.push(pending_block.import_data.state.clone());
pending_blocks.push_back(pending_block);
state_roots.push(state_root);

4
beacon_node/beacon_chain/src/data_availability_checker/state_lru_cache.rs
View File

@@ -209,10 +209,10 @@ impl<T: BeaconChainTypes> StateLRUCache<T> {
impl<E: EthSpec> From<AvailabilityPendingExecutedBlock<E>>
for DietAvailabilityPendingExecutedBlock<E>
{
fn from(value: AvailabilityPendingExecutedBlock<E>) -> Self {
fn from(mut value: AvailabilityPendingExecutedBlock<E>) -> Self {
Self {
block: value.block,
state_root: value.import_data.state.canonical_root(),
state_root: value.import_data.state.canonical_root().unwrap(),
parent_block: value.import_data.parent_block,
parent_eth1_finalization_data: value.import_data.parent_eth1_finalization_data,
confirmed_state_roots: value.import_data.confirmed_state_roots,

2
beacon_node/beacon_chain/src/test_utils.rs
View File

@@ -2246,7 +2246,7 @@ where
.unwrap();
state = new_state;
block_hash_from_slot.insert(*slot, block_hash);
state_hash_from_slot.insert(*slot, state.tree_hash_root().into());
state_hash_from_slot.insert(*slot, state.canonical_root().unwrap().into());
latest_block_hash = Some(block_hash);
}
(

14
beacon_node/beacon_chain/tests/store_tests.rs
View File

@@ -35,7 +35,6 @@ use store::{
};
use tempfile::{tempdir, TempDir};
use tokio::time::sleep;
use tree_hash::TreeHash;
use types::test_utils::{SeedableRng, XorShiftRng};
use types::*;
@@ -199,8 +198,8 @@ async fn heal_freezer_block_roots_with_skip_slots() {
);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
let current_state = harness.get_current_state();
let state_root = harness.get_current_state().tree_hash_root();
let mut current_state = harness.get_current_state();
let state_root = current_state.canonical_root().unwrap();
let all_validators = &harness.get_all_validators();
harness
.add_attested_blocks_at_slots(
@@ -611,12 +610,13 @@ async fn epoch_boundary_state_attestation_processing() {
.get_blinded_block(&block_root)
.unwrap()
.expect("block exists");
let epoch_boundary_state = store
let mut epoch_boundary_state = store
.load_epoch_boundary_state(&block.state_root())
.expect("no error")
.expect("epoch boundary state exists");
let ebs_state_root = epoch_boundary_state.canonical_root().unwrap();
let ebs_of_ebs = store
.load_epoch_boundary_state(&epoch_boundary_state.canonical_root())
.load_epoch_boundary_state(&ebs_state_root)
.expect("no error")
.expect("ebs of ebs exists");
assert_eq!(epoch_boundary_state, ebs_of_ebs);
@@ -2604,9 +2604,9 @@ async fn weak_subjectivity_sync_test(slots: Vec<Slot>, checkpoint_slot: Slot) {
.unwrap()
.map(Result::unwrap)
{
let state = store.get_state(&state_root, Some(slot)).unwrap().unwrap();
let mut state = store.get_state(&state_root, Some(slot)).unwrap().unwrap();
assert_eq!(state.slot(), slot);
assert_eq!(state.canonical_root(), state_root);
assert_eq!(state.canonical_root().unwrap(), state_root);
}
// Anchor slot is still set to the slot of the checkpoint block.

72
beacon_node/http_api/tests/broadcast_validation_tests.rs
View File

@@ -7,7 +7,6 @@ use eth2::types::{BroadcastValidation, PublishBlockRequest};
use http_api::test_utils::InteractiveTester;
use http_api::{publish_blinded_block, publish_block, reconstruct_block, ProvenancedBlock};
use std::sync::Arc;
use tree_hash::TreeHash;
use types::{Epoch, EthSpec, ForkName, Hash256, MainnetEthSpec, Slot};
use warp::Rejection;
use warp_utils::reject::CustomBadRequest;
@@ -353,13 +352,20 @@ pub async fn consensus_partial_pass_only_consensus() {
let slot_b = slot_a + 1;
let state_a = tester.harness.get_current_state();
let ((block_a, _), state_after_a) = tester.harness.make_block(state_a.clone(), slot_b).await;
let ((block_b, blobs_b), state_after_b) = tester.harness.make_block(state_a, slot_b).await;
let ((block_a, _), mut state_after_a) =
tester.harness.make_block(state_a.clone(), slot_b).await;
let ((block_b, blobs_b), mut state_after_b) = tester.harness.make_block(state_a, slot_b).await;
let block_b_root = block_b.canonical_root();
/* check for `make_block` curios */
assert_eq!(block_a.state_root(), state_after_a.tree_hash_root());
assert_eq!(block_b.state_root(), state_after_b.tree_hash_root());
assert_eq!(
block_a.state_root(),
state_after_a.canonical_root().unwrap()
);
assert_eq!(
block_b.state_root(),
state_after_b.canonical_root().unwrap()
);
assert_ne!(block_a.state_root(), block_b.state_root());
let gossip_block_contents_b = PublishBlockRequest::new(block_b, blobs_b)
@@ -516,13 +522,19 @@ pub async fn equivocation_consensus_early_equivocation() {
let slot_b = slot_a + 1;
let state_a = tester.harness.get_current_state();
let ((block_a, blobs_a), state_after_a) =
let ((block_a, blobs_a), mut state_after_a) =
tester.harness.make_block(state_a.clone(), slot_b).await;
let ((block_b, blobs_b), state_after_b) = tester.harness.make_block(state_a, slot_b).await;
let ((block_b, blobs_b), mut state_after_b) = tester.harness.make_block(state_a, slot_b).await;
/* check for `make_block` curios */
assert_eq!(block_a.state_root(), state_after_a.tree_hash_root());
assert_eq!(block_b.state_root(), state_after_b.tree_hash_root());
assert_eq!(
block_a.state_root(),
state_after_a.canonical_root().unwrap()
);
assert_eq!(
block_b.state_root(),
state_after_b.canonical_root().unwrap()
);
assert_ne!(block_a.state_root(), block_b.state_root());
/* submit `block_a` as valid */
@@ -642,13 +654,19 @@ pub async fn equivocation_consensus_late_equivocation() {
let slot_b = slot_a + 1;
let state_a = tester.harness.get_current_state();
let ((block_a, blobs_a), state_after_a) =
let ((block_a, blobs_a), mut state_after_a) =
tester.harness.make_block(state_a.clone(), slot_b).await;
let ((block_b, blobs_b), state_after_b) = tester.harness.make_block(state_a, slot_b).await;
let ((block_b, blobs_b), mut state_after_b) = tester.harness.make_block(state_a, slot_b).await;
/* check for `make_block` curios */
assert_eq!(block_a.state_root(), state_after_a.tree_hash_root());
assert_eq!(block_b.state_root(), state_after_b.tree_hash_root());
assert_eq!(
block_a.state_root(),
state_after_a.canonical_root().unwrap()
);
assert_eq!(
block_b.state_root(),
state_after_b.canonical_root().unwrap()
);
assert_ne!(block_a.state_root(), block_b.state_root());
let gossip_block_contents_b = PublishBlockRequest::new(block_b, blobs_b)
@@ -1135,15 +1153,21 @@ pub async fn blinded_equivocation_consensus_early_equivocation() {
let slot_b = slot_a + 1;
let state_a = tester.harness.get_current_state();
let (block_a, state_after_a) = tester
let (block_a, mut state_after_a) = tester
.harness
.make_blinded_block(state_a.clone(), slot_b)
.await;
let (block_b, state_after_b) = tester.harness.make_blinded_block(state_a, slot_b).await;
let (block_b, mut state_after_b) = tester.harness.make_blinded_block(state_a, slot_b).await;
/* check for `make_blinded_block` curios */
assert_eq!(block_a.state_root(), state_after_a.tree_hash_root());
assert_eq!(block_b.state_root(), state_after_b.tree_hash_root());
assert_eq!(
block_a.state_root(),
state_after_a.canonical_root().unwrap()
);
assert_eq!(
block_b.state_root(),
state_after_b.canonical_root().unwrap()
);
assert_ne!(block_a.state_root(), block_b.state_root());
/* submit `block_a` as valid */
@@ -1259,16 +1283,22 @@ pub async fn blinded_equivocation_consensus_late_equivocation() {
let slot_b = slot_a + 1;
let state_a = tester.harness.get_current_state();
let (block_a, state_after_a) = tester
let (block_a, mut state_after_a) = tester
.harness
.make_blinded_block(state_a.clone(), slot_b)
.await;
let (block_b, state_after_b) = tester.harness.make_blinded_block(state_a, slot_b).await;
let (block_b, mut state_after_b) = tester.harness.make_blinded_block(state_a, slot_b).await;
let block_b = Arc::new(block_b);
/* check for `make_blinded_block` curios */
assert_eq!(block_a.state_root(), state_after_a.tree_hash_root());
assert_eq!(block_b.state_root(), state_after_b.tree_hash_root());
assert_eq!(
block_a.state_root(),
state_after_a.canonical_root().unwrap()
);
assert_eq!(
block_b.state_root(),
state_after_b.canonical_root().unwrap()
);
assert_ne!(block_a.state_root(), block_b.state_root());
let unblinded_block_a = reconstruct_block(

8
beacon_node/http_api/tests/fork_tests.rs
View File

@@ -55,7 +55,7 @@ async fn sync_committee_duties_across_fork() {
// though the head state hasn't transitioned yet.
let fork_slot = fork_epoch.start_slot(E::slots_per_epoch());
let (genesis_state, genesis_state_root) = harness.get_current_state_and_root();
let (_, state) = harness
let (_, mut state) = harness
.add_attested_block_at_slot(
fork_slot - 1,
genesis_state,
@@ -76,7 +76,7 @@ async fn sync_committee_duties_across_fork() {
assert_eq!(sync_duties.len(), E::sync_committee_size());
// After applying a block at the fork slot the duties should remain unchanged.
let state_root = state.canonical_root();
let state_root = state.canonical_root().unwrap();
harness
.add_attested_block_at_slot(fork_slot, state, state_root, &all_validators)
.await
@@ -257,7 +257,7 @@ async fn sync_committee_indices_across_fork() {
// applied.
let fork_slot = fork_epoch.start_slot(E::slots_per_epoch());
let (genesis_state, genesis_state_root) = harness.get_current_state_and_root();
let (_, state) = harness
let (_, mut state) = harness
.add_attested_block_at_slot(
fork_slot - 1,
genesis_state,
@@ -295,7 +295,7 @@ async fn sync_committee_indices_across_fork() {
// Once the head is updated it should be useable for requests, including in the next sync
// committee period.
let state_root = state.canonical_root();
let state_root = state.canonical_root().unwrap();
harness
.add_attested_block_at_slot(fork_slot + 1, state, state_root, &all_validators)
.await

21
beacon_node/http_api/tests/interactive_tests.rs
View File

@@ -17,7 +17,6 @@ use state_processing::{
use std::collections::HashMap;
use std::sync::Arc;
use std::time::Duration;
use tree_hash::TreeHash;
use types::{
Address, Epoch, EthSpec, ExecPayload, ExecutionBlockHash, ForkName, MainnetEthSpec,
MinimalEthSpec, ProposerPreparationData, Slot,
@@ -515,16 +514,17 @@ pub async fn proposer_boost_re_org_test(
}
harness.advance_slot();
let (block_a_root, block_a, state_a) = harness
let (block_a_root, block_a, mut state_a) = harness
.add_block_at_slot(slot_a, harness.get_current_state())
.await
.unwrap();
let state_a_root = state_a.canonical_root().unwrap();
// Attest to block A during slot A.
let (block_a_parent_votes, _) = harness.make_attestations_with_limit(
&all_validators,
&state_a,
state_a.canonical_root(),
state_a_root,
block_a_root,
slot_a,
num_parent_votes,
@@ -538,7 +538,7 @@ pub async fn proposer_boost_re_org_test(
let (block_a_empty_votes, block_a_attesters) = harness.make_attestations_with_limit(
&all_validators,
&state_a,
state_a.canonical_root(),
state_a_root,
block_a_root,
slot_b,
num_empty_votes,
@@ -553,6 +553,7 @@ pub async fn proposer_boost_re_org_test(
// Produce block B and process it halfway through the slot.
let (block_b, mut state_b) = harness.make_block(state_a.clone(), slot_b).await;
let state_b_root = state_b.canonical_root().unwrap();
let block_b_root = block_b.0.canonical_root();
let obs_time = slot_clock.start_of(slot_b).unwrap() + slot_clock.slot_duration() / 2;
@@ -570,7 +571,7 @@ pub async fn proposer_boost_re_org_test(
let (block_b_head_votes, _) = harness.make_attestations_with_limit(
&remaining_attesters,
&state_b,
state_b.canonical_root(),
state_b_root,
block_b_root.into(),
slot_b,
num_head_votes,
@@ -774,32 +775,34 @@ pub async fn fork_choice_before_proposal() {
let slot_d = slot_a + 3;
let state_a = harness.get_current_state();
let (block_b, state_b) = harness.make_block(state_a.clone(), slot_b).await;
let (block_b, mut state_b) = harness.make_block(state_a.clone(), slot_b).await;
let block_root_b = harness
.process_block(slot_b, block_b.0.canonical_root(), block_b)
.await
.unwrap();
let state_root_b = state_b.canonical_root().unwrap();
// Create attestations to B but keep them in reserve until after C has been processed.
let attestations_b = harness.make_attestations(
&all_validators,
&state_b,
state_b.tree_hash_root(),
state_root_b,
block_root_b,
slot_b,
);
let (block_c, state_c) = harness.make_block(state_a, slot_c).await;
let (block_c, mut state_c) = harness.make_block(state_a, slot_c).await;
let block_root_c = harness
.process_block(slot_c, block_c.0.canonical_root(), block_c.clone())
.await
.unwrap();
let state_root_c = state_c.canonical_root().unwrap();
// Create attestations to C from a small number of validators and process them immediately.
let attestations_c = harness.make_attestations(
&all_validators[..validator_count / 2],
&state_c,
state_c.tree_hash_root(),
state_root_c,
block_root_c,
slot_c,
);

7
boot_node/src/config.rs
View File

@@ -102,14 +102,17 @@ impl<E: EthSpec> BootNodeConfig<E> {
.map(Duration::from_secs)?;
if eth2_network_config.genesis_state_is_known() {
let genesis_state = eth2_network_config
let mut genesis_state = eth2_network_config
.genesis_state::<E>(genesis_state_url.as_deref(), genesis_state_url_timeout, &logger).await?
.ok_or_else(|| {
"The genesis state for this network is not known, this is an unsupported mode"
.to_string()
})?;
slog::info!(logger, "Genesis state found"; "root" => genesis_state.canonical_root().to_string());
let genesis_state_root = genesis_state
.canonical_root()
.map_err(|e| format!("Error hashing genesis state: {e:?}"))?;
slog::info!(logger, "Genesis state found"; "root" => ?genesis_state_root);
let enr_fork = spec.enr_fork_id::<E>(
types::Slot::from(0u64),
genesis_state.genesis_validators_root(),

26
consensus/types/src/beacon_state.rs
View File

@@ -214,6 +214,13 @@ impl From<BeaconStateHash> for Hash256 {
}
/// The state of the `BeaconChain` at some slot.
///
/// Note: `BeaconState` does not implement `TreeHash` on the top-level type in order to
/// encourage use of the `canonical_root`/`update_tree_hash_cache` methods which flush pending
/// updates to the underlying persistent data structures. This is the safest option for now until
/// we add internal mutability to `milhouse::{List, Vector}`. See:
///
/// https://github.com/sigp/milhouse/issues/43
#[superstruct(
variants(Base, Altair, Bellatrix, Capella, Deneb, Electra),
variant_attributes(
@@ -324,13 +331,10 @@ impl From<BeaconStateHash> for Hash256 {
partial_getter_error(ty = "Error", expr = "Error::IncorrectStateVariant"),
map_ref_mut_into(BeaconStateRef)
)]
#[derive(
Debug, PartialEq, Clone, Serialize, Deserialize, Encode, TreeHash, arbitrary::Arbitrary,
)]
#[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Encode, arbitrary::Arbitrary)]
#[serde(untagged)]
#[serde(bound = "E: EthSpec")]
#[arbitrary(bound = "E: EthSpec")]
#[tree_hash(enum_behaviour = "transparent")]
#[ssz(enum_behaviour = "transparent")]
pub struct BeaconState<E>
where
@@ -652,10 +656,8 @@ impl<E: EthSpec> BeaconState<E> {
}
/// Returns the `tree_hash_root` of the state.
///
/// Spec v0.12.1
pub fn canonical_root(&self) -> Hash256 {
Hash256::from_slice(&self.tree_hash_root()[..])
pub fn canonical_root(&mut self) -> Result<Hash256, Error> {
self.update_tree_hash_cache()
}
pub fn historical_batch(&mut self) -> Result<HistoricalBatch<E>, Error> {
@@ -2016,9 +2018,13 @@ impl<E: EthSpec> BeaconState<E> {
/// Compute the tree hash root of the state using the tree hash cache.
///
/// Initialize the tree hash cache if it isn't already initialized.
pub fn update_tree_hash_cache(&mut self) -> Result<Hash256, Error> {
pub fn update_tree_hash_cache<'a>(&'a mut self) -> Result<Hash256, Error> {
self.apply_pending_mutations()?;
Ok(self.tree_hash_root())
map_beacon_state_ref!(&'a _, self.to_ref(), |inner, cons| {
let root = inner.tree_hash_root();
cons(inner);
Ok(root)
})
}
/// Compute the tree hash root of the validators using the tree hash cache.

2
consensus/types/src/light_client_update.rs
View File

@@ -168,7 +168,7 @@ impl<E: EthSpec> LightClientUpdate<E> {
let signature_period = block.epoch().sync_committee_period(chain_spec)?;
// Compute and validate attested header.
let mut attested_header = attested_state.latest_block_header().clone();
attested_header.state_root = attested_state.tree_hash_root();
attested_header.state_root = attested_state.update_tree_hash_cache()?;
let attested_period = attested_header
.slot
.epoch(E::slots_per_epoch())

5
testing/ef_tests/src/cases/common.rs
View File

@@ -2,7 +2,6 @@ use serde::Deserialize;
use ssz::Encode;
use ssz_derive::{Decode, Encode};
use std::fmt::Debug;
use tree_hash::TreeHash;
use types::ForkName;
/// Macro to wrap U128 and U256 so they deserialize correctly.
@@ -49,12 +48,12 @@ uint_wrapper!(TestU256, ethereum_types::U256);
/// Trait for types that can be used in SSZ static tests.
pub trait SszStaticType:
serde::de::DeserializeOwned + Encode + TreeHash + Clone + PartialEq + Debug + Sync
serde::de::DeserializeOwned + Encode + Clone + PartialEq + Debug + Sync
{
}
impl<T> SszStaticType for T where
T: serde::de::DeserializeOwned + Encode + TreeHash + Clone + PartialEq + Debug + Sync
T: serde::de::DeserializeOwned + Encode + Clone + PartialEq + Debug + Sync
{
}

3
testing/ef_tests/src/cases/ssz_generic.rs
View File

@@ -6,6 +6,7 @@ use crate::cases::ssz_static::{check_serialization, check_tree_hash};
use crate::decode::{log_file_access, snappy_decode_file, yaml_decode_file};
use serde::{de::Error as SerdeError, Deserialize, Deserializer};
use ssz_derive::{Decode, Encode};
use tree_hash::TreeHash;
use tree_hash_derive::TreeHash;
use types::typenum::*;
use types::{BitList, BitVector, FixedVector, ForkName, VariableList, Vector};
@@ -206,7 +207,7 @@ impl Case for SszGeneric {
}
}
fn ssz_generic_test<T: SszStaticType + ssz::Decode>(path: &Path) -> Result<(), Error> {
fn ssz_generic_test<T: SszStaticType + TreeHash + ssz::Decode>(path: &Path) -> Result<(), Error> {
let meta_path = path.join("meta.yaml");
let meta: Option<Metadata> = if meta_path.is_file() {
Some(yaml_decode_file(&meta_path)?)

3
testing/ef_tests/src/cases/ssz_static.rs
View File

@@ -101,7 +101,7 @@ pub fn check_tree_hash(expected_str: &str, actual_root: &[u8]) -> Result<(), Err
compare_result::<Hash256, Error>(&Ok(tree_hash_root), &Some(expected_root))
}
impl<T: SszStaticType + Decode> Case for SszStatic<T> {
impl<T: SszStaticType + TreeHash + Decode> Case for SszStatic<T> {
fn result(&self, _case_index: usize, _fork_name: ForkName) -> Result<(), Error> {
check_serialization(&self.value, &self.serialized, T::from_ssz_bytes)?;
check_tree_hash(&self.roots.root, self.value.tree_hash_root().as_bytes())?;
@@ -115,7 +115,6 @@ impl<E: EthSpec> Case for SszStaticTHC<BeaconState<E>> {
check_serialization(&self.value, &self.serialized, |bytes| {
BeaconState::from_ssz_bytes(bytes, spec)
})?;
check_tree_hash(&self.roots.root, self.value.tree_hash_root().as_bytes())?;
let mut state = self.value.clone();
let cached_tree_hash_root = state.update_tree_hash_cache().unwrap();

2
testing/ef_tests/src/handler.rs
View File

@@ -262,7 +262,7 @@ pub struct SszStaticWithSpecHandler<T, E>(PhantomData<(T, E)>);
impl<T, E> Handler for SszStaticHandler<T, E>
where
T: cases::SszStaticType + ssz::Decode + TypeName,
T: cases::SszStaticType + tree_hash::TreeHash + ssz::Decode + TypeName,
E: TypeName,
{
type Case = cases::SszStatic<T>;