nimbus-eth2/tests/test_gossip_validation.nim

273 lines
10 KiB
Nim

# beacon_chain
# Copyright (c) 2018-2022 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.used.}
import
# Standard library
std/sequtils,
# Status lib
unittest2,
chronos,
eth/keys, taskpools,
# Internal
../beacon_chain/[beacon_clock],
../beacon_chain/gossip_processing/[gossip_validation, batch_validation],
../beacon_chain/fork_choice/fork_choice,
../beacon_chain/consensus_object_pools/[
block_quarantine, blockchain_dag, block_clearance, attestation_pool,
sync_committee_msg_pool],
../beacon_chain/spec/datatypes/[phase0, altair],
../beacon_chain/spec/[state_transition, helpers, network, validator],
../beacon_chain/validators/validator_pool,
# Test utilities
./testutil, ./testdbutil, ./testblockutil
proc pruneAtFinalization(dag: ChainDAGRef, attPool: AttestationPool) =
if dag.needStateCachesAndForkChoicePruning():
dag.pruneStateCachesDAG()
# pool[].prune() # We test logic without att_1_0 pool / fork choice pruning
suite "Gossip validation " & preset():
setup:
# Genesis state that results in 3 members per committee
var
validatorMonitor = newClone(ValidatorMonitor.init())
dag = init(
ChainDAGRef, defaultRuntimeConfig, makeTestDB(SLOTS_PER_EPOCH * 3),
validatorMonitor, {})
taskpool = Taskpool.new()
verifier = BatchVerifier(rng: keys.newRng(), taskpool: taskpool)
quarantine = newClone(Quarantine.init())
pool = newClone(AttestationPool.init(dag, quarantine))
state = newClone(dag.headState)
cache = StateCache()
info = ForkedEpochInfo()
batchCrypto = BatchCrypto.new(keys.newRng(), eager = proc(): bool = false, taskpool)
# Slot 0 is a finalized slot - won't be making attestations for it..
check:
process_slots(
defaultRuntimeConfig, state[], getStateField(state[], slot) + 1,
cache, info, {}).isOk()
test "Empty committee when no committee for slot":
template committee(idx: uint64): untyped =
get_beacon_committee(
dag.headState, dag.head.slot, idx.CommitteeIndex, cache)
template committeeLen(idx: uint64): untyped =
get_beacon_committee_len(
dag.headState, dag.head.slot, idx.CommitteeIndex, cache)
check:
committee(0).len > 0
committee(63).len == 0
check:
committeeLen(2) > 0
committeeLen(63) == 0
test "validateAttestation":
var
cache: StateCache
for blck in makeTestBlocks(
dag.headState, cache, int(SLOTS_PER_EPOCH * 5), false):
let added = dag.addHeadBlock(verifier, blck.phase0Data) do (
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
epochRef: EpochRef, unrealized: FinalityCheckpoints):
# Callback add to fork choice if valid
pool[].addForkChoice(
epochRef, blckRef, unrealized, signedBlock.message,
blckRef.slot.start_beacon_time)
check: added.isOk()
dag.updateHead(added[], quarantine[])
pruneAtFinalization(dag, pool[])
var
# Create attestations for slot 1
beacon_committee = get_beacon_committee(
dag.headState, dag.head.slot, 0.CommitteeIndex, cache)
att_1_0 = makeAttestation(
dag.headState, dag.head.root, beacon_committee[0], cache)
att_1_1 = makeAttestation(
dag.headState, dag.head.root, beacon_committee[1], cache)
committees_per_slot =
get_committee_count_per_slot(
dag.headState, att_1_0.data.slot.epoch, cache)
subnet = compute_subnet_for_attestation(
committees_per_slot,
att_1_0.data.slot, att_1_0.data.index.CommitteeIndex)
beaconTime = att_1_0.data.slot.start_beacon_time()
check:
validateAttestation(pool, batchCrypto, att_1_0, beaconTime, subnet, true).waitFor().isOk
# Same validator again
validateAttestation(pool, batchCrypto, att_1_0, beaconTime, subnet, true).waitFor().error()[0] ==
ValidationResult.Ignore
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Wrong subnet
validateAttestation(
pool, batchCrypto, att_1_0, beaconTime, SubnetId(subnet.uint8 + 1), true).waitFor().isErr
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Too far in the future
validateAttestation(
pool, batchCrypto, att_1_0, beaconTime - 1.seconds, subnet, true).waitFor().isErr
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Too far in the past
validateAttestation(
pool, batchCrypto, att_1_0,
beaconTime - (SECONDS_PER_SLOT * SLOTS_PER_EPOCH - 1).int.seconds,
subnet, true).waitFor().isErr
block:
var broken = att_1_0
broken.signature.blob[0] += 1
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Invalid signature
validateAttestation(
pool, batchCrypto, broken, beaconTime, subnet, true).waitFor().
error()[0] == ValidationResult.Reject
block:
var broken = att_1_0
broken.signature.blob[5] += 1
pool[].nextAttestationEpoch.setLen(0) # reset for test
# One invalid, one valid (batched)
let
fut_1_0 = validateAttestation(
pool, batchCrypto, broken, beaconTime, subnet, true)
fut_1_1 = validateAttestation(
pool, batchCrypto, att_1_1, beaconTime, subnet, true)
check:
fut_1_0.waitFor().error()[0] == ValidationResult.Reject
fut_1_1.waitFor().isOk()
block:
var broken = att_1_0
# This shouldn't deserialize, which is a different way to break it
broken.signature.blob = default(type broken.signature.blob)
pool[].nextAttestationEpoch.setLen(0) # reset for test
# One invalid, one valid (batched)
let
fut_1_0 = validateAttestation(
pool, batchCrypto, broken, beaconTime, subnet, true)
fut_1_1 = validateAttestation(
pool, batchCrypto, att_1_1, beaconTime, subnet, true)
check:
fut_1_0.waitFor().error()[0] == ValidationResult.Reject
fut_1_1.waitFor().isOk()
suite "Gossip validation - Extra": # Not based on preset config
test "validateSyncCommitteeMessage":
const num_validators = SLOTS_PER_EPOCH
let
cfg = block:
var cfg = defaultRuntimeConfig
cfg.ALTAIR_FORK_EPOCH = (GENESIS_EPOCH + 1).Epoch
cfg
taskpool = Taskpool.new()
quarantine = newClone(Quarantine.init())
batchCrypto = BatchCrypto.new(keys.newRng(), eager = proc(): bool = false, taskpool)
var
verifier = BatchVerifier(rng: keys.newRng(), taskpool: Taskpool.new())
dag = block:
let
validatorMonitor = newClone(ValidatorMonitor.init())
dag = ChainDAGRef.init(
cfg, makeTestDB(num_validators), validatorMonitor, {})
var cache = StateCache()
for blck in makeTestBlocks(
dag.headState, cache, int(SLOTS_PER_EPOCH), false, cfg = cfg):
let added =
case blck.kind
of BeaconBlockFork.Phase0:
const nilCallback = OnPhase0BlockAdded(nil)
dag.addHeadBlock(verifier, blck.phase0Data, nilCallback)
of BeaconBlockFork.Altair:
const nilCallback = OnAltairBlockAdded(nil)
dag.addHeadBlock(verifier, blck.altairData, nilCallback)
of BeaconBlockFork.Bellatrix:
const nilCallback = OnBellatrixBlockAdded(nil)
dag.addHeadBlock(verifier, blck.bellatrixData, nilCallback)
check: added.isOk()
dag.updateHead(added[], quarantine[])
dag
state = assignClone(dag.headState.altairData)
slot = state[].data.slot
subcommitteeIdx = 0.SyncSubcommitteeIndex
syncCommittee = @(dag.syncCommitteeParticipants(slot))
subcommittee = toSeq(syncCommittee.syncSubcommittee(subcommitteeIdx))
index = subcommittee[0]
expectedCount = subcommittee.count(index)
pubkey = state[].data.validators.item(index).pubkey
keystoreData = KeystoreData(kind: KeystoreKind.Local,
privateKey: MockPrivKeys[index])
validator = AttachedValidator(pubkey: pubkey,
kind: ValidatorKind.Local, data: keystoreData, index: Opt.some index)
resMsg = waitFor getSyncCommitteeMessage(
validator, state[].data.fork, state[].data.genesis_validators_root, slot,
state[].root)
msg = resMsg.get()
syncCommitteeMsgPool = newClone(SyncCommitteeMsgPool.init(keys.newRng()))
res = waitFor validateSyncCommitteeMessage(
dag, batchCrypto, syncCommitteeMsgPool, msg, subcommitteeIdx,
slot.start_beacon_time(), true)
(positions, cookedSig) = res.get()
syncCommitteeMsgPool[].addSyncCommitteeMessage(
msg.slot,
msg.beacon_block_root,
msg.validator_index,
cookedSig,
subcommitteeIdx,
positions)
let
contribution = block:
let contribution = (ref SignedContributionAndProof)()
check:
syncCommitteeMsgPool[].produceContribution(
slot, state[].root, subcommitteeIdx,
contribution.message.contribution)
let addContributionRes = syncCommitteeMsgPool[].addContribution(
contribution[], contribution.message.contribution.signature.load.get)
check addContributionRes == newBest
let signRes = waitFor validator.getContributionAndProofSignature(
state[].data.fork, state[].data.genesis_validators_root,
contribution[].message)
doAssert(signRes.isOk())
contribution[].signature = signRes.get()
contribution
aggregate = syncCommitteeMsgPool[].produceSyncAggregate(state[].root)
check:
expectedCount > 1 # Cover edge case
res.isOk
contribution.message.contribution.aggregation_bits.countOnes == expectedCount
aggregate.sync_committee_bits.countOnes == expectedCount
# Same message twice should be ignored
validateSyncCommitteeMessage(
dag, batchCrypto, syncCommitteeMsgPool, msg, subcommitteeIdx,
state[].data.slot.start_beacon_time(), true).waitFor().isErr()