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Retrospective invalidation of exec. payloads for opt. sync (#2837)

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## Issue Addressed

NA

## Proposed Changes

Adds the functionality to allow blocks to be validated/invalidated after their import as per the [optimistic sync spec](https://github.com/ethereum/consensus-specs/blob/dev/sync/optimistic.md#how-to-optimistically-import-blocks). This means:

- Updating `ProtoArray` to allow flipping the `execution_status` of ancestors/descendants based on payload validity updates.
- Creating separation between `execution_layer` and the `beacon_chain` by creating a `PayloadStatus` struct.
- Refactoring how the `execution_layer` selects a `PayloadStatus` from the multiple statuses returned from multiple EEs.
- Adding testing framework for optimistic imports.
- Add `ExecutionBlockHash(Hash256)` new-type struct to avoid confusion between *beacon block roots* and *execution payload hashes*.
- Add `merge` to [`FORKS`](c3a793fd73/Makefile (L17)) in the `Makefile` to ensure we test the beacon chain with merge settings.
    - Fix some tests here that were failing due to a missing execution layer.

## TODO

- [ ] Balance tests

Co-authored-by: Mark Mackey <mark@sigmaprime.io>
This commit is contained in:
Paul Hauner
2022-02-28 22:07:48 +00:00
parent 5e1f8a8480
commit 27e83b888c
50 changed files with 3358 additions and 768 deletions
Download Patch File Download Diff File Expand all files Collapse all files

91
consensus/proto_array/src/fork_choice_test_definition.rs
View File

@@ -1,11 +1,16 @@
mod execution_status;
mod ffg_updates;
mod no_votes;
mod votes;
use crate::proto_array_fork_choice::{Block, ExecutionStatus, ProtoArrayForkChoice};
use serde_derive::{Deserialize, Serialize};
use types::{AttestationShufflingId, Checkpoint, Epoch, EthSpec, Hash256, MainnetEthSpec, Slot};
use types::{
AttestationShufflingId, Checkpoint, Epoch, EthSpec, ExecutionBlockHash, Hash256,
MainnetEthSpec, Slot,
};
pub use execution_status::*;
pub use ffg_updates::*;
pub use no_votes::*;
pub use votes::*;
@@ -18,6 +23,13 @@ pub enum Operation {
justified_state_balances: Vec<u64>,
expected_head: Hash256,
},
ProposerBoostFindHead {
justified_checkpoint: Checkpoint,
finalized_checkpoint: Checkpoint,
justified_state_balances: Vec<u64>,
expected_head: Hash256,
proposer_boost_root: Hash256,
},
InvalidFindHead {
justified_checkpoint: Checkpoint,
finalized_checkpoint: Checkpoint,
@@ -40,6 +52,14 @@ pub enum Operation {
prune_threshold: usize,
expected_len: usize,
},
InvalidatePayload {
head_block_root: Hash256,
latest_valid_ancestor_root: Option<ExecutionBlockHash>,
},
AssertWeight {
block_root: Hash256,
weight: u64,
},
}
#[derive(Debug, Clone, Serialize, Deserialize)]
@@ -52,9 +72,11 @@ pub struct ForkChoiceTestDefinition {
impl ForkChoiceTestDefinition {
pub fn run(self) {
let mut spec = MainnetEthSpec::default_spec();
spec.proposer_score_boost = Some(50);
let junk_shuffling_id =
AttestationShufflingId::from_components(Epoch::new(0), Hash256::zero());
let execution_status = ExecutionStatus::irrelevant();
let mut fork_choice = ProtoArrayForkChoice::new(
self.finalized_block_slot,
Hash256::zero(),
@@ -62,7 +84,7 @@ impl ForkChoiceTestDefinition {
self.finalized_checkpoint,
junk_shuffling_id.clone(),
junk_shuffling_id,
execution_status,
ExecutionStatus::Unknown(ExecutionBlockHash::zero()),
)
.expect("should create fork choice struct");
@@ -80,7 +102,7 @@ impl ForkChoiceTestDefinition {
finalized_checkpoint,
&justified_state_balances,
Hash256::zero(),
&MainnetEthSpec::default_spec(),
&spec,
)
.map_err(|e| e)
.unwrap_or_else(|e| {
@@ -89,7 +111,34 @@ impl ForkChoiceTestDefinition {
assert_eq!(
head, expected_head,
"Operation at index {} failed checks. Operation: {:?}",
"Operation at index {} failed head check. Operation: {:?}",
op_index, op
);
check_bytes_round_trip(&fork_choice);
}
Operation::ProposerBoostFindHead {
justified_checkpoint,
finalized_checkpoint,
justified_state_balances,
expected_head,
proposer_boost_root,
} => {
let head = fork_choice
.find_head::<MainnetEthSpec>(
justified_checkpoint,
finalized_checkpoint,
&justified_state_balances,
proposer_boost_root,
&spec,
)
.map_err(|e| e)
.unwrap_or_else(|e| {
panic!("find_head op at index {} returned error {}", op_index, e)
});
assert_eq!(
head, expected_head,
"Operation at index {} failed head check. Operation: {:?}",
op_index, op
);
check_bytes_round_trip(&fork_choice);
@@ -104,7 +153,7 @@ impl ForkChoiceTestDefinition {
finalized_checkpoint,
&justified_state_balances,
Hash256::zero(),
&MainnetEthSpec::default_spec(),
&spec,
);
assert!(
@@ -138,7 +187,10 @@ impl ForkChoiceTestDefinition {
),
justified_checkpoint,
finalized_checkpoint,
execution_status,
// All blocks are imported optimistically.
execution_status: ExecutionStatus::Unknown(ExecutionBlockHash::from_root(
root,
)),
};
fork_choice.process_block(block).unwrap_or_else(|e| {
panic!(
@@ -183,22 +235,41 @@ impl ForkChoiceTestDefinition {
expected_len
);
}
Operation::InvalidatePayload {
head_block_root,
latest_valid_ancestor_root,
} => fork_choice
.process_execution_payload_invalidation(
head_block_root,
latest_valid_ancestor_root,
)
.unwrap(),
Operation::AssertWeight { block_root, weight } => assert_eq!(
fork_choice.get_weight(&block_root).unwrap(),
weight,
"block weight"
),
}
}
}
}
/// Gives a hash that is not the zero hash (unless i is `usize::max_value)`.
fn get_hash(i: u64) -> Hash256 {
/// Gives a root that is not the zero hash (unless i is `usize::max_value)`.
fn get_root(i: u64) -> Hash256 {
Hash256::from_low_u64_be(i + 1)
}
/// Gives a hash that is not the zero hash (unless i is `usize::max_value)`.
fn get_hash(i: u64) -> ExecutionBlockHash {
ExecutionBlockHash::from_root(get_root(i))
}
/// Gives a checkpoint with a root that is not the zero hash (unless i is `usize::max_value)`.
/// `Epoch` will always equal `i`.
fn get_checkpoint(i: u64) -> Checkpoint {
Checkpoint {
epoch: Epoch::new(i),
root: get_hash(i),
root: get_root(i),
}
}