nimbus-eth2/beacon_chain/nimbus_beacon_node.nim

2094 lines
77 KiB
Nim

# beacon_chain
# Copyright (c) 2018-2023 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.
{.push raises: [].}
import
std/[os, random, sequtils, terminal, times],
chronos, chronicles,
metrics, metrics/chronos_httpserver,
stew/[byteutils, io2],
eth/p2p/discoveryv5/[enr, random2],
eth/keys,
./consensus_object_pools/vanity_logs/vanity_logs,
./networking/topic_params,
./rpc/[rest_api, state_ttl_cache],
./spec/datatypes/[altair, bellatrix, phase0],
./spec/[deposit_snapshots, engine_authentication, weak_subjectivity],
./validators/[keystore_management, validator_duties],
"."/[
beacon_node, beacon_node_light_client, deposits,
nimbus_binary_common, statusbar, trusted_node_sync, wallets]
when defined(posix):
import system/ansi_c
from ./spec/datatypes/deneb import SignedBeaconBlock
from
libp2p/protocols/pubsub/gossipsub
import
TopicParams, validateParameters, init
when defined(windows):
import winlean
type
LPCSTR* = cstring
LPSTR* = cstring
SERVICE_STATUS* {.final, pure.} = object
dwServiceType*: DWORD
dwCurrentState*: DWORD
dwControlsAccepted*: DWORD
dwWin32ExitCode*: DWORD
dwServiceSpecificExitCode*: DWORD
dwCheckPoint*: DWORD
dwWaitHint*: DWORD
SERVICE_STATUS_HANDLE* = DWORD
LPSERVICE_STATUS* = ptr SERVICE_STATUS
LPSERVICE_MAIN_FUNCTION* = proc (para1: DWORD, para2: LPSTR) {.stdcall.}
SERVICE_TABLE_ENTRY* {.final, pure.} = object
lpServiceName*: LPSTR
lpServiceProc*: LPSERVICE_MAIN_FUNCTION
LPSERVICE_TABLE_ENTRY* = ptr SERVICE_TABLE_ENTRY
LPHANDLER_FUNCTION* = proc (para1: DWORD): WINBOOL{.stdcall.}
const
SERVICE_WIN32_OWN_PROCESS = 16
SERVICE_RUNNING = 4
SERVICE_STOPPED = 1
SERVICE_START_PENDING = 2
SERVICE_STOP_PENDING = 3
SERVICE_CONTROL_STOP = 1
SERVICE_CONTROL_PAUSE = 2
SERVICE_CONTROL_CONTINUE = 3
SERVICE_CONTROL_INTERROGATE = 4
SERVICE_ACCEPT_STOP = 1
NO_ERROR = 0
SERVICE_NAME = LPCSTR "NIMBUS_BEACON_NODE"
var
gSvcStatusHandle: SERVICE_STATUS_HANDLE
gSvcStatus: SERVICE_STATUS
proc reportServiceStatus*(dwCurrentState, dwWin32ExitCode, dwWaitHint: DWORD) {.gcsafe.}
proc StartServiceCtrlDispatcher*(lpServiceStartTable: LPSERVICE_TABLE_ENTRY): WINBOOL{.
stdcall, dynlib: "advapi32", importc: "StartServiceCtrlDispatcherA".}
proc SetServiceStatus*(hServiceStatus: SERVICE_STATUS_HANDLE,
lpServiceStatus: LPSERVICE_STATUS): WINBOOL{.stdcall,
dynlib: "advapi32", importc: "SetServiceStatus".}
proc RegisterServiceCtrlHandler*(lpServiceName: LPCSTR,
lpHandlerProc: LPHANDLER_FUNCTION): SERVICE_STATUS_HANDLE{.
stdcall, dynlib: "advapi32", importc: "RegisterServiceCtrlHandlerA".}
type
RpcServer = RpcHttpServer
template init(T: type RpcHttpServer, ip: ValidIpAddress, port: Port): T =
newRpcHttpServer([initTAddress(ip, port)])
# https://github.com/ethereum/eth2.0-metrics/blob/master/metrics.md#interop-metrics
declareGauge beacon_slot, "Latest slot of the beacon chain state"
declareGauge beacon_current_epoch, "Current epoch"
# Finalization tracking
declareGauge finalization_delay,
"Epoch delay between scheduled epoch and finalized epoch"
declareGauge ticks_delay,
"How long does to take to run the onSecond loop"
declareGauge next_action_wait,
"Seconds until the next attestation will be sent"
logScope: topics = "beacnde"
func getVanityLogs(stdoutKind: StdoutLogKind): VanityLogs =
case stdoutKind
of StdoutLogKind.Auto: raiseAssert "inadmissable here"
of StdoutLogKind.Colors:
VanityLogs(
onMergeTransitionBlock: color🐼,
onFinalizedMergeTransitionBlock: blink🐼,
onUpgradeToCapella: color🦉,
onKnownBlsToExecutionChange: blink🦉)
of StdoutLogKind.NoColors:
VanityLogs(
onMergeTransitionBlock: mono🐼,
onFinalizedMergeTransitionBlock: mono🐼,
onUpgradeToCapella: mono🦉,
onKnownBlsToExecutionChange: mono🦉)
of StdoutLogKind.Json, StdoutLogKind.None:
VanityLogs(
onMergeTransitionBlock:
(proc() = notice "🐼 Proof of Stake Activated 🐼"),
onFinalizedMergeTransitionBlock:
(proc() = notice "🐼 Proof of Stake Finalized 🐼"),
onUpgradeToCapella:
(proc() = notice "🦉 Withdrowls now available 🦉"),
onKnownBlsToExecutionChange:
(proc() = notice "🦉 BLS to execution changed 🦉"))
proc loadChainDag(
config: BeaconNodeConf,
cfg: RuntimeConfig,
db: BeaconChainDB,
eventBus: EventBus,
validatorMonitor: ref ValidatorMonitor,
networkGenesisValidatorsRoot: Opt[Eth2Digest]): ChainDAGRef =
info "Loading block DAG from database", path = config.databaseDir
var dag: ChainDAGRef
proc onLightClientFinalityUpdate(data: ForkedLightClientFinalityUpdate) =
if dag == nil: return
withForkyFinalityUpdate(data):
when lcDataFork > LightClientDataFork.None:
let contextFork =
dag.cfg.consensusForkAtEpoch(forkyFinalityUpdate.contextEpoch)
eventBus.finUpdateQueue.emit(
RestVersioned[ForkedLightClientFinalityUpdate](
data: data,
jsonVersion: contextFork,
sszContext: dag.forkDigests[].atConsensusFork(contextFork)))
proc onLightClientOptimisticUpdate(data: ForkedLightClientOptimisticUpdate) =
if dag == nil: return
withForkyOptimisticUpdate(data):
when lcDataFork > LightClientDataFork.None:
let contextFork =
dag.cfg.consensusForkAtEpoch(forkyOptimisticUpdate.contextEpoch)
eventBus.optUpdateQueue.emit(
RestVersioned[ForkedLightClientOptimisticUpdate](
data: data,
jsonVersion: contextFork,
sszContext: dag.forkDigests[].atConsensusFork(contextFork)))
var extraFlags = {enableTestFeatures}
if config.deploymentPhase <= DeploymentPhase.Testnet:
extraFlags.incl experimental
let
chainDagFlags =
if config.strictVerification: {strictVerification}
else: {}
onLightClientFinalityUpdateCb =
if config.lightClientDataServe: onLightClientFinalityUpdate
else: nil
onLightClientOptimisticUpdateCb =
if config.lightClientDataServe: onLightClientOptimisticUpdate
else: nil
dag = ChainDAGRef.init(
cfg, db, validatorMonitor, extraFlags + chainDagFlags, config.eraDir,
vanityLogs = getVanityLogs(detectTTY(config.logStdout)),
lcDataConfig = LightClientDataConfig(
serve: config.lightClientDataServe,
importMode: config.lightClientDataImportMode,
maxPeriods: config.lightClientDataMaxPeriods,
onLightClientFinalityUpdate: onLightClientFinalityUpdateCb,
onLightClientOptimisticUpdate: onLightClientOptimisticUpdateCb))
if networkGenesisValidatorsRoot.isSome:
let databaseGenesisValidatorsRoot =
getStateField(dag.headState, genesis_validators_root)
if networkGenesisValidatorsRoot.get != databaseGenesisValidatorsRoot:
fatal "The specified --data-dir contains data for a different network",
networkGenesisValidatorsRoot = networkGenesisValidatorsRoot.get,
databaseGenesisValidatorsRoot,
dataDir = config.dataDir
quit 1
# The first pruning after restart may take a while..
if config.historyMode == HistoryMode.Prune:
dag.pruneHistory(true)
dag
proc checkWeakSubjectivityCheckpoint(
dag: ChainDAGRef,
wsCheckpoint: Checkpoint,
beaconClock: BeaconClock) =
let
currentSlot = beaconClock.now.slotOrZero
isCheckpointStale = not is_within_weak_subjectivity_period(
dag.cfg, currentSlot, dag.headState, wsCheckpoint)
if isCheckpointStale:
error "Weak subjectivity checkpoint is stale",
currentSlot, checkpoint = wsCheckpoint,
headStateSlot = getStateField(dag.headState, slot)
quit 1
proc initFullNode(
node: BeaconNode,
rng: ref HmacDrbgContext,
dag: ChainDAGRef,
taskpool: TaskPoolPtr,
getBeaconTime: GetBeaconTimeFn) =
template config(): auto = node.config
proc onAttestationReceived(data: Attestation) =
node.eventBus.attestQueue.emit(data)
proc onSyncContribution(data: SignedContributionAndProof) =
node.eventBus.contribQueue.emit(data)
proc onVoluntaryExitAdded(data: SignedVoluntaryExit) =
node.eventBus.exitQueue.emit(data)
proc onBlockAdded(data: ForkedTrustedSignedBeaconBlock) =
let optimistic =
if node.currentSlot().epoch() >= dag.cfg.BELLATRIX_FORK_EPOCH:
some node.dag.is_optimistic(data.root)
else:
none[bool]()
node.eventBus.blocksQueue.emit(
EventBeaconBlockObject.init(data, optimistic))
proc onHeadChanged(data: HeadChangeInfoObject) =
let eventData =
if node.currentSlot().epoch() >= dag.cfg.BELLATRIX_FORK_EPOCH:
var res = data
res.optimistic = some node.dag.is_optimistic(data.block_root)
res
else:
data
node.eventBus.headQueue.emit(eventData)
proc onChainReorg(data: ReorgInfoObject) =
let eventData =
if node.currentSlot().epoch() >= dag.cfg.BELLATRIX_FORK_EPOCH:
var res = data
res.optimistic = some node.dag.is_optimistic(data.new_head_block)
res
else:
data
node.eventBus.reorgQueue.emit(eventData)
proc makeOnFinalizationCb(
# This `nimcall` functions helps for keeping track of what
# needs to be captured by the onFinalization closure.
eventBus: EventBus,
elManager: ELManager): OnFinalizedCallback {.nimcall.} =
static: doAssert (elManager is ref)
return proc(dag: ChainDAGRef, data: FinalizationInfoObject) =
if elManager != nil:
let finalizedEpochRef = dag.getFinalizedEpochRef()
discard trackFinalizedState(elManager,
finalizedEpochRef.eth1_data,
finalizedEpochRef.eth1_deposit_index)
node.updateLightClientFromDag()
let eventData =
if node.currentSlot().epoch() >= dag.cfg.BELLATRIX_FORK_EPOCH:
var res = data
res.optimistic = some node.dag.is_optimistic(data.block_root)
res
else:
data
eventBus.finalQueue.emit(eventData)
func getLocalHeadSlot(): Slot =
dag.head.slot
proc getLocalWallSlot(): Slot =
node.beaconClock.now.slotOrZero
func getFirstSlotAtFinalizedEpoch(): Slot =
dag.finalizedHead.slot
func getBackfillSlot(): Slot =
dag.backfill.slot
func getFrontfillSlot(): Slot =
max(dag.frontfill.get(BlockId()).slot, dag.horizon)
let
quarantine = newClone(
Quarantine.init())
attestationPool = newClone(
AttestationPool.init(dag, quarantine, onAttestationReceived))
syncCommitteeMsgPool = newClone(
SyncCommitteeMsgPool.init(rng, onSyncContribution))
lightClientPool = newClone(
LightClientPool())
validatorChangePool = newClone(
ValidatorChangePool.init(dag, attestationPool, onVoluntaryExitAdded))
consensusManager = ConsensusManager.new(
dag, attestationPool, quarantine, node.elManager,
ActionTracker.init(rng, config.subscribeAllSubnets),
node.dynamicFeeRecipientsStore, config.validatorsDir,
config.defaultFeeRecipient, config.suggestedGasLimit)
blockProcessor = BlockProcessor.new(
config.dumpEnabled, config.dumpDirInvalid, config.dumpDirIncoming,
rng, taskpool, consensusManager, node.validatorMonitor, getBeaconTime)
blockVerifier =
proc(signedBlock: ForkedSignedBeaconBlock, maybeFinalized: bool):
Future[Result[void, VerifierError]] =
# The design with a callback for block verification is unusual compared
# to the rest of the application, but fits with the general approach
# taken in the sync/request managers - this is an architectural compromise
# that should probably be reimagined more holistically in the future.
let resfut = newFuture[Result[void, VerifierError]]("blockVerifier")
blockProcessor[].addBlock(MsgSource.gossip, signedBlock,
BlobSidecars @[],
resfut,
maybeFinalized = maybeFinalized)
resfut
blockBlobsVerifier = proc(signedBlock: ForkedSignedBeaconBlock,
blobs: BlobSidecars,
maybeFinalized: bool):
Future[Result[void, VerifierError]] =
# The design with a callback for block verification is unusual compared
# to the rest of the application, but fits with the general approach
# taken in the sync/request managers - this is an architectural compromise
# that should probably be reimagined more holistically in the future.
let resfut = newFuture[Result[void, VerifierError]]("blockVerifier")
blockProcessor[].addBlock(MsgSource.gossip, signedBlock,
blobs, resfut, maybeFinalized = maybeFinalized)
resfut
processor = Eth2Processor.new(
config.doppelgangerDetection,
blockProcessor, node.validatorMonitor, dag, attestationPool,
validatorChangePool, node.attachedValidators, syncCommitteeMsgPool,
lightClientPool, quarantine, rng, getBeaconTime, taskpool)
syncManager = newSyncManager[Peer, PeerId](
node.network.peerPool, dag.cfg.DENEB_FORK_EPOCH, SyncQueueKind.Forward, getLocalHeadSlot,
getLocalWallSlot, getFirstSlotAtFinalizedEpoch, getBackfillSlot,
getFrontfillSlot, dag.tail.slot, blockVerifier, blockBlobsVerifier)
backfiller = newSyncManager[Peer, PeerId](
node.network.peerPool, dag.cfg.DENEB_FORK_EPOCH, SyncQueueKind.Backward, getLocalHeadSlot,
getLocalWallSlot, getFirstSlotAtFinalizedEpoch, getBackfillSlot,
getFrontfillSlot, dag.backfill.slot, blockVerifier, blockBlobsVerifier,
maxHeadAge = 0)
router = (ref MessageRouter)(
processor: processor,
network: node.network)
if node.config.lightClientDataServe:
proc scheduleSendingLightClientUpdates(slot: Slot) =
if node.lightClientPool[].broadcastGossipFut != nil:
return
if slot <= node.lightClientPool[].latestBroadcastedSlot:
return
node.lightClientPool[].latestBroadcastedSlot = slot
template fut(): auto = node.lightClientPool[].broadcastGossipFut
fut = node.handleLightClientUpdates(slot)
fut.addCallback do (p: pointer) {.gcsafe.}:
fut = nil
router.onSyncCommitteeMessage = scheduleSendingLightClientUpdates
dag.setFinalizationCb makeOnFinalizationCb(node.eventBus, node.elManager)
dag.setBlockCb(onBlockAdded)
dag.setHeadCb(onHeadChanged)
dag.setReorgCb(onChainReorg)
node.dag = dag
node.quarantine = quarantine
node.attestationPool = attestationPool
node.syncCommitteeMsgPool = syncCommitteeMsgPool
node.lightClientPool = lightClientPool
node.validatorChangePool = validatorChangePool
node.processor = processor
node.blockProcessor = blockProcessor
node.consensusManager = consensusManager
node.requestManager = RequestManager.init(node.network,
dag.cfg.DENEB_FORK_EPOCH,
getBeaconTime,
blockVerifier)
node.syncManager = syncManager
node.backfiller = backfiller
node.router = router
node.addValidators()
block:
# Add in-process validators to the list of "known" validators such that
# we start with a reasonable ENR
let wallSlot = node.beaconClock.now().slotOrZero()
for validator in node.attachedValidators[].validators.values():
if config.validatorMonitorAuto:
node.validatorMonitor[].addMonitor(validator.pubkey, validator.index)
if validator.index.isSome():
node.consensusManager[].actionTracker.knownValidators[
validator.index.get()] = wallSlot
let stabilitySubnets =
node.consensusManager[].actionTracker.stabilitySubnets(wallSlot)
# Here, we also set the correct ENR should we be in all subnets mode!
node.network.updateStabilitySubnetMetadata(stabilitySubnets)
node.network.initBeaconSync(dag, getBeaconTime)
node.updateValidatorMetrics()
const SlashingDbName = "slashing_protection"
# changing this requires physical file rename as well or history is lost.
proc init*(T: type BeaconNode,
rng: ref HmacDrbgContext,
config: BeaconNodeConf,
metadata: Eth2NetworkMetadata): BeaconNode
{.raises: [Defect, CatchableError].} =
var taskpool: TaskPoolPtr
template cfg: auto = metadata.cfg
template eth1Network: auto = metadata.eth1Network
try:
if config.numThreads < 0:
fatal "The number of threads --numThreads cannot be negative."
quit 1
elif config.numThreads == 0:
taskpool = TaskPoolPtr.new(numThreads = min(countProcessors(), 16))
else:
taskpool = TaskPoolPtr.new(numThreads = config.numThreads)
info "Threadpool started", numThreads = taskpool.numThreads
except Exception as exc:
raise newException(Defect, "Failure in taskpool initialization.")
let
eventBus = EventBus(
blocksQueue: newAsyncEventQueue[EventBeaconBlockObject](),
headQueue: newAsyncEventQueue[HeadChangeInfoObject](),
reorgQueue: newAsyncEventQueue[ReorgInfoObject](),
finUpdateQueue: newAsyncEventQueue[
RestVersioned[ForkedLightClientFinalityUpdate]](),
optUpdateQueue: newAsyncEventQueue[
RestVersioned[ForkedLightClientOptimisticUpdate]](),
attestQueue: newAsyncEventQueue[Attestation](),
contribQueue: newAsyncEventQueue[SignedContributionAndProof](),
exitQueue: newAsyncEventQueue[SignedVoluntaryExit](),
finalQueue: newAsyncEventQueue[FinalizationInfoObject]()
)
db = BeaconChainDB.new(config.databaseDir, cfg, inMemory = false)
if config.finalizedCheckpointBlock.isSome:
warn "--finalized-checkpoint-block has been deprecated, ignoring"
let checkpointState = if config.finalizedCheckpointState.isSome:
let checkpointStatePath = config.finalizedCheckpointState.get.string
let tmp = try:
newClone(readSszForkedHashedBeaconState(
cfg, readAllBytes(checkpointStatePath).tryGet()))
except SszError as err:
fatal "Checkpoint state loading failed",
err = formatMsg(err, checkpointStatePath)
quit 1
except CatchableError as err:
fatal "Failed to read checkpoint state file", err = err.msg
quit 1
if not getStateField(tmp[], slot).is_epoch:
fatal "--finalized-checkpoint-state must point to a state for an epoch slot",
slot = getStateField(tmp[], slot)
quit 1
tmp
else:
nil
if config.finalizedDepositTreeSnapshot.isSome:
let
depositTreeSnapshotPath = config.finalizedDepositTreeSnapshot.get.string
depositTreeSnapshot = try:
SSZ.loadFile(depositTreeSnapshotPath, DepositTreeSnapshot)
except SszError as err:
fatal "Deposit tree snapshot loading failed",
err = formatMsg(err, depositTreeSnapshotPath)
quit 1
except CatchableError as err:
fatal "Failed to read deposit tree snapshot file", err = err.msg
quit 1
db.putDepositTreeSnapshot(depositTreeSnapshot)
let engineApiUrls = config.engineApiUrls
if engineApiUrls.len == 0:
notice "Running without execution client - validator features disabled (see https://nimbus.guide/eth1.html)"
var genesisState =
if metadata.genesisData.len > 0:
try:
newClone readSszForkedHashedBeaconState(
cfg,
metadata.genesisData.toOpenArrayByte(0, metadata.genesisData.high))
except CatchableError as err:
raiseAssert "Invalid baked-in state: " & err.msg
else:
nil
if not ChainDAGRef.isInitialized(db).isOk():
if genesisState == nil and checkpointState == nil:
fatal "No database and no genesis snapshot found. Please supply a genesis.ssz " &
"with the network configuration"
quit 1
if not genesisState.isNil and not checkpointState.isNil:
if getStateField(genesisState[], genesis_validators_root) !=
getStateField(checkpointState[], genesis_validators_root):
fatal "Checkpoint state does not match genesis - check the --network parameter",
rootFromGenesis = getStateField(
genesisState[], genesis_validators_root),
rootFromCheckpoint = getStateField(
checkpointState[], genesis_validators_root)
quit 1
try:
# Always store genesis state if we have it - this allows reindexing and
# answering genesis queries
if not genesisState.isNil:
ChainDAGRef.preInit(db, genesisState[])
if not checkpointState.isNil:
if genesisState.isNil or
getStateField(checkpointState[], slot) != GENESIS_SLOT:
ChainDAGRef.preInit(db, checkpointState[])
doAssert ChainDAGRef.isInitialized(db).isOk(), "preInit should have initialized db"
except CatchableError as exc:
error "Failed to initialize database", err = exc.msg
quit 1
else:
if not checkpointState.isNil:
fatal "A database already exists, cannot start from given checkpoint",
dataDir = config.dataDir
quit 1
# Doesn't use std/random directly, but dependencies might
randomize(rng[].rand(high(int)))
# The validatorMonitorTotals flag has been deprecated and should eventually be
# removed - until then, it's given priority if set so as not to needlessly
# break existing setups
let
validatorMonitor = newClone(ValidatorMonitor.init(
config.validatorMonitorAuto,
config.validatorMonitorTotals.get(
not config.validatorMonitorDetails)))
for key in config.validatorMonitorPubkeys:
validatorMonitor[].addMonitor(key, Opt.none(ValidatorIndex))
let
networkGenesisValidatorsRoot =
if not genesisState.isNil:
Opt.some(getStateField(genesisState[], genesis_validators_root))
else:
Opt.none(Eth2Digest)
dag = loadChainDag(
config, cfg, db, eventBus,
validatorMonitor, networkGenesisValidatorsRoot)
genesisTime = getStateField(dag.headState, genesis_time)
beaconClock = BeaconClock.init(genesisTime)
getBeaconTime = beaconClock.getBeaconTimeFn()
if config.weakSubjectivityCheckpoint.isSome:
dag.checkWeakSubjectivityCheckpoint(
config.weakSubjectivityCheckpoint.get, beaconClock)
let elManager = ELManager.new(
cfg,
metadata.depositContractBlock,
metadata.depositContractBlockHash,
db,
engineApiUrls,
eth1Network)
if config.rpcEnabled.isSome:
warn "Nimbus's JSON-RPC server has been removed. This includes the --rpc, --rpc-port, and --rpc-address configuration options. https://nimbus.guide/rest-api.html shows how to enable and configure the REST Beacon API server which replaces it."
let restServer = if config.restEnabled:
RestServerRef.init(config.restAddress, config.restPort,
config.keymanagerAllowedOrigin,
validateBeaconApiQueries,
config)
else:
nil
let
netKeys = getPersistentNetKeys(rng[], config)
nickname = if config.nodeName == "auto": shortForm(netKeys)
else: config.nodeName
network = createEth2Node(
rng, config, netKeys, cfg, dag.forkDigests, getBeaconTime,
getStateField(dag.headState, genesis_validators_root))
case config.slashingDbKind
of SlashingDbKind.v2:
discard
of SlashingDbKind.v1:
error "Slashing DB v1 is no longer supported for writing"
quit 1
of SlashingDbKind.both:
warn "Slashing DB v1 deprecated, writing only v2"
info "Loading slashing protection database (v2)",
path = config.validatorsDir()
proc getValidatorAndIdx(pubkey: ValidatorPubKey): Opt[ValidatorAndIndex] =
withState(dag.headState):
getValidator(forkyState().data.validators.asSeq(), pubkey)
let
slashingProtectionDB =
SlashingProtectionDB.init(
getStateField(dag.headState, genesis_validators_root),
config.validatorsDir(), SlashingDbName)
validatorPool = newClone(ValidatorPool.init(
slashingProtectionDB, config.doppelgangerDetection))
keymanagerInitResult = initKeymanagerServer(config, restServer)
keymanagerHost = if keymanagerInitResult.server != nil:
newClone KeymanagerHost.init(
validatorPool,
rng,
keymanagerInitResult.token,
config.validatorsDir,
config.secretsDir,
config.defaultFeeRecipient,
config.suggestedGasLimit,
getValidatorAndIdx,
getBeaconTime)
else: nil
stateTtlCache =
if config.restCacheSize > 0:
StateTtlCache.init(
cacheSize = config.restCacheSize,
cacheTtl = chronos.seconds(config.restCacheTtl))
else:
nil
let payloadBuilderRestClient =
if config.payloadBuilderEnable:
RestClientRef.new(config.payloadBuilderUrl).valueOr:
warn "Payload builder REST client setup failed",
payloadBuilderUrl = config.payloadBuilderUrl
nil
else:
nil
if config.payloadBuilderEnable and payloadBuilderRestClient != nil:
info "Using external payload builder",
payloadBuilderUrl = config.payloadBuilderUrl
let node = BeaconNode(
nickname: nickname,
graffitiBytes: if config.graffiti.isSome: config.graffiti.get
else: defaultGraffitiBytes(),
network: network,
netKeys: netKeys,
db: db,
config: config,
attachedValidators: validatorPool,
elManager: elManager,
payloadBuilderRestClient: payloadBuilderRestClient,
restServer: restServer,
keymanagerHost: keymanagerHost,
keymanagerServer: keymanagerInitResult.server,
keystoreCache: KeystoreCacheRef.init(),
eventBus: eventBus,
gossipState: {},
blocksGossipState: {},
beaconClock: beaconClock,
validatorMonitor: validatorMonitor,
stateTtlCache: stateTtlCache,
dynamicFeeRecipientsStore: newClone(DynamicFeeRecipientsStore.init()))
node.initLightClient(
rng, cfg, dag.forkDigests, getBeaconTime, dag.genesis_validators_root)
node.initFullNode(
rng, dag, taskpool, getBeaconTime)
node.updateLightClientFromDag()
node
func verifyFinalization(node: BeaconNode, slot: Slot) =
# Epoch must be >= 4 to check finalization
const SETTLING_TIME_OFFSET = 1'u64
let epoch = slot.epoch()
# Don't static-assert this -- if this isn't called, don't require it
doAssert SLOTS_PER_EPOCH > SETTLING_TIME_OFFSET
# Intentionally, loudly assert. Point is to fail visibly and unignorably
# during testing.
if epoch >= 4 and slot mod SLOTS_PER_EPOCH > SETTLING_TIME_OFFSET:
let finalizedEpoch =
node.dag.finalizedHead.slot.epoch()
# Finalization rule 234, that has the most lag slots among the cases, sets
# state.finalized_checkpoint = old_previous_justified_checkpoint.epoch + 3
# and then state.slot gets incremented, to increase the maximum offset, if
# finalization occurs every slot, to 4 slots vs scheduledSlot.
doAssert finalizedEpoch + 4 >= epoch
func subnetLog(v: BitArray): string =
$toSeq(v.oneIndices())
func forkDigests(node: BeaconNode): auto =
let forkDigestsArray: array[ConsensusFork, auto] = [
node.dag.forkDigests.phase0,
node.dag.forkDigests.altair,
node.dag.forkDigests.bellatrix,
node.dag.forkDigests.capella,
node.dag.forkDigests.deneb]
forkDigestsArray
# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/validator.md#phase-0-attestation-subnet-stability
proc updateAttestationSubnetHandlers(node: BeaconNode, slot: Slot) =
if node.gossipState.card == 0:
# When disconnected, updateGossipState is responsible for all things
# subnets - in particular, it will remove subscriptions on the edge where
# we enter the disconnected state.
return
let
aggregateSubnets =
node.consensusManager[].actionTracker.aggregateSubnets(slot)
stabilitySubnets =
node.consensusManager[].actionTracker.stabilitySubnets(slot)
subnets = aggregateSubnets + stabilitySubnets
node.network.updateStabilitySubnetMetadata(stabilitySubnets)
# Now we know what we should be subscribed to - make it so
let
prevSubnets = node.consensusManager[].actionTracker.subscribedSubnets
unsubscribeSubnets = prevSubnets - subnets
subscribeSubnets = subnets - prevSubnets
# Remember what we subscribed to, so we can unsubscribe later
node.consensusManager[].actionTracker.subscribedSubnets = subnets
let forkDigests = node.forkDigests()
for gossipFork in node.gossipState:
let forkDigest = forkDigests[gossipFork]
node.network.unsubscribeAttestationSubnets(unsubscribeSubnets, forkDigest)
node.network.subscribeAttestationSubnets(subscribeSubnets, forkDigest)
debug "Attestation subnets",
slot, epoch = slot.epoch, gossipState = node.gossipState,
stabilitySubnets = subnetLog(stabilitySubnets),
aggregateSubnets = subnetLog(aggregateSubnets),
prevSubnets = subnetLog(prevSubnets),
subscribeSubnets = subnetLog(subscribeSubnets),
unsubscribeSubnets = subnetLog(unsubscribeSubnets),
gossipState = node.gossipState
proc updateBlocksGossipStatus*(
node: BeaconNode, slot: Slot, dagIsBehind: bool) =
template cfg(): auto = node.dag.cfg
let
isBehind =
if node.shouldSyncOptimistically(slot):
# If optimistic sync is active, always subscribe to blocks gossip
false
else:
# Use DAG status to determine whether to subscribe for blocks gossip
dagIsBehind
targetGossipState = getTargetGossipState(
slot.epoch, cfg.ALTAIR_FORK_EPOCH, cfg.BELLATRIX_FORK_EPOCH,
cfg.CAPELLA_FORK_EPOCH, cfg.DENEB_FORK_EPOCH, isBehind)
template currentGossipState(): auto = node.blocksGossipState
if currentGossipState == targetGossipState:
return
if currentGossipState.card == 0 and targetGossipState.card > 0:
debug "Enabling blocks topic subscriptions",
wallSlot = slot, targetGossipState
elif currentGossipState.card > 0 and targetGossipState.card == 0:
debug "Disabling blocks topic subscriptions",
wallSlot = slot
else:
# Individual forks added / removed
discard
let
newGossipForks = targetGossipState - currentGossipState
oldGossipForks = currentGossipState - targetGossipState
for gossipFork in oldGossipForks:
let forkDigest = node.dag.forkDigests[].atConsensusFork(gossipFork)
node.network.unsubscribe(getBeaconBlocksTopic(forkDigest))
for gossipFork in newGossipForks:
let forkDigest = node.dag.forkDigests[].atConsensusFork(gossipFork)
node.network.subscribe(
getBeaconBlocksTopic(forkDigest), blocksTopicParams,
enableTopicMetrics = true)
node.blocksGossipState = targetGossipState
proc addPhase0MessageHandlers(
node: BeaconNode, forkDigest: ForkDigest, slot: Slot) =
node.network.subscribe(getAttesterSlashingsTopic(forkDigest), basicParams)
node.network.subscribe(getProposerSlashingsTopic(forkDigest), basicParams)
node.network.subscribe(getVoluntaryExitsTopic(forkDigest), basicParams)
node.network.subscribe(
getAggregateAndProofsTopic(forkDigest), aggregateTopicParams,
enableTopicMetrics = true)
# updateAttestationSubnetHandlers subscribes attestation subnets
proc removePhase0MessageHandlers(node: BeaconNode, forkDigest: ForkDigest) =
node.network.unsubscribe(getVoluntaryExitsTopic(forkDigest))
node.network.unsubscribe(getProposerSlashingsTopic(forkDigest))
node.network.unsubscribe(getAttesterSlashingsTopic(forkDigest))
node.network.unsubscribe(getAggregateAndProofsTopic(forkDigest))
for subnet_id in SubnetId:
node.network.unsubscribe(getAttestationTopic(forkDigest, subnet_id))
node.consensusManager[].actionTracker.subscribedSubnets = default(AttnetBits)
func hasSyncPubKey(node: BeaconNode, epoch: Epoch): auto =
# Only used to determine which gossip topics to which to subscribe
if node.config.subscribeAllSubnets:
(func(pubkey: ValidatorPubKey): bool {.closure.} = true)
else:
(func(pubkey: ValidatorPubKey): bool =
node.consensusManager[].actionTracker.hasSyncDuty(pubkey, epoch) or
pubkey in node.attachedValidators[].validators)
func getCurrentSyncCommiteeSubnets(node: BeaconNode, epoch: Epoch): SyncnetBits =
let syncCommittee = withState(node.dag.headState):
when consensusFork >= ConsensusFork.Altair:
forkyState.data.current_sync_committee
else:
return static(default(SyncnetBits))
getSyncSubnets(node.hasSyncPubKey(epoch), syncCommittee)
func getNextSyncCommitteeSubnets(node: BeaconNode, epoch: Epoch): SyncnetBits =
let syncCommittee = withState(node.dag.headState):
when consensusFork >= ConsensusFork.Altair:
forkyState.data.next_sync_committee
else:
return static(default(SyncnetBits))
getSyncSubnets(
node.hasSyncPubKey((epoch.sync_committee_period + 1).start_slot().epoch),
syncCommittee)
func getSyncCommitteeSubnets(node: BeaconNode, epoch: Epoch): SyncnetBits =
let
subnets = node.getCurrentSyncCommiteeSubnets(epoch)
epochsToSyncPeriod = nearSyncCommitteePeriod(epoch)
# The end-slot tracker might call this when it's theoretically applicable,
# but more than SYNC_COMMITTEE_SUBNET_COUNT epochs from when the next sync
# committee period begins, in which case `epochsToNextSyncPeriod` is none.
if epochsToSyncPeriod.isNone or
node.dag.cfg.consensusForkAtEpoch(epoch + epochsToSyncPeriod.get) <
ConsensusFork.Altair:
return subnets
subnets + node.getNextSyncCommitteeSubnets(epoch)
proc addAltairMessageHandlers(
node: BeaconNode, forkDigest: ForkDigest, slot: Slot) =
node.addPhase0MessageHandlers(forkDigest, slot)
# If this comes online near sync committee period, it'll immediately get
# replaced as usual by trackSyncCommitteeTopics, which runs at slot end.
let syncnets = node.getSyncCommitteeSubnets(slot.epoch)
for subcommitteeIdx in SyncSubcommitteeIndex:
if syncnets[subcommitteeIdx]:
node.network.subscribe(
getSyncCommitteeTopic(forkDigest, subcommitteeIdx), basicParams)
node.network.subscribe(
getSyncCommitteeContributionAndProofTopic(forkDigest), basicParams)
node.network.updateSyncnetsMetadata(syncnets)
proc addCapellaMessageHandlers(
node: BeaconNode, forkDigest: ForkDigest, slot: Slot) =
node.addAltairMessageHandlers(forkDigest, slot)
node.network.subscribe(getBlsToExecutionChangeTopic(forkDigest), basicParams)
proc removeAltairMessageHandlers(node: BeaconNode, forkDigest: ForkDigest) =
node.removePhase0MessageHandlers(forkDigest)
for subcommitteeIdx in SyncSubcommitteeIndex:
closureScope:
let idx = subcommitteeIdx
node.network.unsubscribe(getSyncCommitteeTopic(forkDigest, idx))
node.network.unsubscribe(
getSyncCommitteeContributionAndProofTopic(forkDigest))
proc removeCapellaMessageHandlers(node: BeaconNode, forkDigest: ForkDigest) =
node.removeAltairMessageHandlers(forkDigest)
node.network.unsubscribe(getBlsToExecutionChangeTopic(forkDigest))
proc updateSyncCommitteeTopics(node: BeaconNode, slot: Slot) =
template lastSyncUpdate: untyped =
node.consensusManager[].actionTracker.lastSyncUpdate
if lastSyncUpdate == Opt.some(slot.sync_committee_period()) and
nearSyncCommitteePeriod(slot.epoch).isNone():
# No need to update unless we're close to the next sync committee period or
# new validators were registered with the action tracker
# TODO we _could_ skip running this in some of the "near" slots, but..
return
lastSyncUpdate = Opt.some(slot.sync_committee_period())
let syncnets = node.getSyncCommitteeSubnets(slot.epoch)
debug "Updating sync committee subnets",
syncnets,
metadata_syncnets = node.network.metadata.syncnets,
gossipState = node.gossipState
# Assume that different gossip fork sync committee setups are in sync; this
# only remains relevant, currently, for one gossip transition epoch, so the
# consequences of this not being true aren't exceptionally dire, while this
# allows for bookkeeping simplication.
if syncnets == node.network.metadata.syncnets:
return
let
newSyncnets =
syncnets - node.network.metadata.syncnets
oldSyncnets =
node.network.metadata.syncnets - syncnets
forkDigests = node.forkDigests()
for subcommitteeIdx in SyncSubcommitteeIndex:
doAssert not (newSyncnets[subcommitteeIdx] and
oldSyncnets[subcommitteeIdx])
for gossipFork in node.gossipState:
template topic(): auto =
getSyncCommitteeTopic(forkDigests[gossipFork], subcommitteeIdx)
if oldSyncnets[subcommitteeIdx]:
node.network.unsubscribe(topic)
elif newSyncnets[subcommitteeIdx]:
node.network.subscribe(topic, basicParams)
node.network.updateSyncnetsMetadata(syncnets)
proc doppelgangerChecked(node: BeaconNode, epoch: Epoch) =
if not node.processor[].doppelgangerDetectionEnabled:
return
# broadcastStartEpoch is set to FAR_FUTURE_EPOCH when we're not monitoring
# gossip - it is only viable to assert liveness in epochs where gossip is
# active
if epoch > node.processor[].doppelgangerDetection.broadcastStartEpoch:
for validator in node.attachedValidators[]:
validator.doppelgangerChecked(epoch - 1)
proc updateGossipStatus(node: BeaconNode, slot: Slot) {.async.} =
## Subscribe to subnets that we are providing stability for or aggregating
## and unsubscribe from the ones that are no longer relevant.
# Let the tracker know what duties are approaching - this will tell us how
# many stability subnets we need to be subscribed to and what subnets we'll
# soon be aggregating - in addition to the in-beacon-node duties, there may
# also be duties coming from the validator client, but we don't control when
# these arrive
await node.registerDuties(slot)
# We start subscribing to gossip before we're fully synced - this allows time
# to subscribe before the sync end game
const
TOPIC_SUBSCRIBE_THRESHOLD_SLOTS = 64
HYSTERESIS_BUFFER = 16
let
head = node.dag.head
headDistance =
if slot > head.slot: (slot - head.slot).uint64
else: 0'u64
isBehind =
headDistance > TOPIC_SUBSCRIBE_THRESHOLD_SLOTS + HYSTERESIS_BUFFER
targetGossipState =
getTargetGossipState(
slot.epoch,
node.dag.cfg.ALTAIR_FORK_EPOCH,
node.dag.cfg.BELLATRIX_FORK_EPOCH,
node.dag.cfg.CAPELLA_FORK_EPOCH,
node.dag.cfg.DENEB_FORK_EPOCH,
isBehind)
doAssert targetGossipState.card <= 2
let
newGossipForks = targetGossipState - node.gossipState
oldGossipForks = node.gossipState - targetGossipState
doAssert newGossipForks.card <= 2
doAssert oldGossipForks.card <= 2
func maxGossipFork(gossipState: GossipState): int =
var res = -1
for gossipFork in gossipState:
res = max(res, gossipFork.int)
res
if maxGossipFork(targetGossipState) < maxGossipFork(node.gossipState) and
targetGossipState != {}:
warn "Unexpected clock regression during transition",
targetGossipState,
gossipState = node.gossipState
if node.gossipState.card == 0 and targetGossipState.card > 0:
# We are synced, so we will connect
debug "Enabling topic subscriptions",
wallSlot = slot,
headSlot = head.slot,
headDistance, targetGossipState
node.processor[].setupDoppelgangerDetection(slot)
# Specially when waiting for genesis, we'll already be synced on startup -
# it might also happen on a sufficiently fast restart
# We "know" the actions for the current and the next epoch
withState(node.dag.headState):
if node.consensusManager[].actionTracker.needsUpdate(
forkyState, slot.epoch):
let epochRef = node.dag.getEpochRef(head, slot.epoch, false).expect(
"Getting head EpochRef should never fail")
node.consensusManager[].actionTracker.updateActions(epochRef)
if node.consensusManager[].actionTracker.needsUpdate(
forkyState, slot.epoch + 1):
let epochRef = node.dag.getEpochRef(head, slot.epoch + 1, false).expect(
"Getting head EpochRef should never fail")
node.consensusManager[].actionTracker.updateActions(epochRef)
if node.gossipState.card > 0 and targetGossipState.card == 0:
debug "Disabling topic subscriptions",
wallSlot = slot,
headSlot = head.slot,
headDistance
node.processor[].clearDoppelgangerProtection()
let forkDigests = node.forkDigests()
const removeMessageHandlers: array[ConsensusFork, auto] = [
removePhase0MessageHandlers,
removeAltairMessageHandlers,
removeAltairMessageHandlers, # bellatrix (altair handlers, different forkDigest)
removeCapellaMessageHandlers,
removeCapellaMessageHandlers # deneb (capella handlers, different forkDigest)
]
for gossipFork in oldGossipForks:
removeMessageHandlers[gossipFork](node, forkDigests[gossipFork])
const addMessageHandlers: array[ConsensusFork, auto] = [
addPhase0MessageHandlers,
addAltairMessageHandlers,
addAltairMessageHandlers, # bellatrix (altair handlers, different forkDigest)
addCapellaMessageHandlers,
addCapellaMessageHandlers # deneb (capella handlers, different forkDigest)
]
for gossipFork in newGossipForks:
addMessageHandlers[gossipFork](node, forkDigests[gossipFork], slot)
node.gossipState = targetGossipState
node.doppelgangerChecked(slot.epoch)
node.updateAttestationSubnetHandlers(slot)
node.updateBlocksGossipStatus(slot, isBehind)
node.updateLightClientGossipStatus(slot, isBehind)
proc onSlotEnd(node: BeaconNode, slot: Slot) {.async.} =
# Things we do when slot processing has ended and we're about to wait for the
# next slot
if node.dag.needStateCachesAndForkChoicePruning():
if node.attachedValidators[].validators.len > 0:
node.attachedValidators[]
.slashingProtection
# pruning is only done if the DB is set to pruning mode.
.pruneAfterFinalization(
node.dag.finalizedHead.slot.epoch()
)
# Delay part of pruning until latency critical duties are done.
# The other part of pruning, `pruneBlocksDAG`, is done eagerly.
# ----
# This is the last pruning to do as it clears the "needPruning" condition.
node.consensusManager[].pruneStateCachesAndForkChoice()
if node.config.historyMode == HistoryMode.Prune:
node.dag.pruneHistory()
when declared(GC_fullCollect):
# The slots in the beacon node work as frames in a game: we want to make
# sure that we're ready for the next one and don't get stuck in lengthy
# garbage collection tasks when time is of essence in the middle of a slot -
# while this does not guarantee that we'll never collect during a slot, it
# makes sure that all the scratch space we used during slot tasks (logging,
# temporary buffers etc) gets recycled for the next slot that is likely to
# need similar amounts of memory.
try:
GC_fullCollect()
except Defect as exc:
raise exc # Reraise to maintain call stack
except Exception as exc:
# TODO upstream
raiseAssert "Unexpected exception during GC collection"
# Checkpoint the database to clear the WAL file and make sure changes in
# the database are synced with the filesystem.
node.db.checkpoint()
node.syncCommitteeMsgPool[].pruneData(slot)
if slot.is_epoch:
node.dynamicFeeRecipientsStore[].pruneOldMappings(slot.epoch)
# Update upcoming actions - we do this every slot in case a reorg happens
let head = node.dag.head
if node.isSynced(head) == SyncStatus.synced:
withState(node.dag.headState):
if node.consensusManager[].actionTracker.needsUpdate(
forkyState, slot.epoch + 1):
let epochRef = node.dag.getEpochRef(head, slot.epoch + 1, false).expect(
"Getting head EpochRef should never fail")
node.consensusManager[].actionTracker.updateActions(epochRef)
let
nextAttestationSlot =
node.consensusManager[].actionTracker.getNextAttestationSlot(slot)
nextProposalSlot =
node.consensusManager[].actionTracker.getNextProposalSlot(slot)
nextActionWaitTime = saturate(fromNow(
node.beaconClock, min(nextAttestationSlot, nextProposalSlot)))
# -1 is a more useful output than 18446744073709551615 as an indicator of
# no future attestation/proposal known.
template formatInt64(x: Slot): int64 =
if x == high(uint64).Slot:
-1'i64
else:
toGaugeValue(x)
template formatSyncCommitteeStatus(): string =
let slotsToNextSyncCommitteePeriod =
SLOTS_PER_SYNC_COMMITTEE_PERIOD - since_sync_committee_period_start(slot)
# int64 conversion is safe
doAssert slotsToNextSyncCommitteePeriod <= SLOTS_PER_SYNC_COMMITTEE_PERIOD
if not node.getCurrentSyncCommiteeSubnets(slot.epoch).isZeros:
"current"
elif not node.getNextSyncCommitteeSubnets(slot.epoch).isZeros:
"in " & toTimeLeftString(
SECONDS_PER_SLOT.int64.seconds * slotsToNextSyncCommitteePeriod.int64)
else:
"none"
info "Slot end",
slot = shortLog(slot),
nextActionWait =
if nextAttestationSlot == FAR_FUTURE_SLOT:
"n/a"
else:
shortLog(nextActionWaitTime),
nextAttestationSlot = formatInt64(nextAttestationSlot),
nextProposalSlot = formatInt64(nextProposalSlot),
syncCommitteeDuties = formatSyncCommitteeStatus(),
head = shortLog(head)
if nextAttestationSlot != FAR_FUTURE_SLOT:
next_action_wait.set(nextActionWaitTime.toFloatSeconds)
let epoch = slot.epoch
if epoch + 1 >= node.network.forkId.next_fork_epoch:
# Update 1 epoch early to block non-fork-ready peers
node.network.updateForkId(epoch, node.dag.genesis_validators_root)
# When we're not behind schedule, we'll speculatively update the clearance
# state in anticipation of receiving the next block - we do it after logging
# slot end since the nextActionWaitTime can be short
let
advanceCutoff = node.beaconClock.fromNow(
slot.start_beacon_time() + chronos.seconds(int(SECONDS_PER_SLOT - 1)))
if advanceCutoff.inFuture:
# We wait until there's only a second left before the next slot begins, then
# we advance the clearance state to the next slot - this gives us a high
# probability of being prepared for the block that will arrive and the
# epoch processing that follows
await sleepAsync(advanceCutoff.offset)
node.dag.advanceClearanceState()
# Prepare action tracker for the next slot
node.consensusManager[].actionTracker.updateSlot(slot + 1)
# The last thing we do is to perform the subscriptions and unsubscriptions for
# the next slot, just before that slot starts - because of the advance cuttoff
# above, this will be done just before the next slot starts
node.updateSyncCommitteeTopics(slot + 1)
await node.updateGossipStatus(slot + 1)
func syncStatus(node: BeaconNode, wallSlot: Slot): string =
let optimistic_head = node.dag.is_optimistic(node.dag.head.root)
if node.syncManager.inProgress:
let
optimisticSuffix =
if optimistic_head:
"/opt"
else:
""
lightClientSuffix =
if node.consensusManager[].shouldSyncOptimistically(wallSlot):
" - lc: " & $shortLog(node.consensusManager[].optimisticHead)
else:
""
node.syncManager.syncStatus & optimisticSuffix & lightClientSuffix
elif node.backfiller.inProgress:
"backfill: " & node.backfiller.syncStatus
elif optimistic_head:
"synced/opt"
else:
"synced"
proc onSlotStart(node: BeaconNode, wallTime: BeaconTime,
lastSlot: Slot): Future[bool] {.async.} =
## Called at the beginning of a slot - usually every slot, but sometimes might
## skip a few in case we're running late.
## wallTime: current system time - we will strive to perform all duties up
## to this point in time
## lastSlot: the last slot that we successfully processed, so we know where to
## start work from - there might be jumps if processing is delayed
let
# The slot we should be at, according to the clock
wallSlot = wallTime.slotOrZero
# If everything was working perfectly, the slot that we should be processing
expectedSlot = lastSlot + 1
finalizedEpoch = node.dag.finalizedHead.blck.slot.epoch()
delay = wallTime - expectedSlot.start_beacon_time()
info "Slot start",
slot = shortLog(wallSlot),
epoch = shortLog(wallSlot.epoch),
sync = node.syncStatus(wallSlot),
peers = len(node.network.peerPool),
head = shortLog(node.dag.head),
finalized = shortLog(getStateField(
node.dag.headState, finalized_checkpoint)),
delay = shortLog(delay)
# Check before any re-scheduling of onSlotStart()
if checkIfShouldStopAtEpoch(wallSlot, node.config.stopAtEpoch):
quit(0)
when defined(windows):
if node.config.runAsService:
reportServiceStatus(SERVICE_RUNNING, NO_ERROR, 0)
beacon_slot.set wallSlot.toGaugeValue
beacon_current_epoch.set wallSlot.epoch.toGaugeValue
# both non-negative, so difference can't overflow or underflow int64
finalization_delay.set(
wallSlot.epoch.toGaugeValue - finalizedEpoch.toGaugeValue)
if node.config.strictVerification:
verifyFinalization(node, wallSlot)
node.consensusManager[].updateHead(wallSlot)
await node.handleValidatorDuties(lastSlot, wallSlot)
await onSlotEnd(node, wallSlot)
# https://github.com/ethereum/builder-specs/blob/v0.3.0/specs/bellatrix/validator.md#registration-dissemination
# This specification suggests validators re-submit to builder software every
# `EPOCHS_PER_VALIDATOR_REGISTRATION_SUBMISSION` epochs.
if wallSlot.is_epoch and
wallSlot.epoch mod EPOCHS_PER_VALIDATOR_REGISTRATION_SUBMISSION == 0:
asyncSpawn node.registerValidators(wallSlot.epoch)
return false
proc handleMissingBlocks(node: BeaconNode) =
let missingBlocks = node.quarantine[].checkMissing()
if missingBlocks.len > 0:
debug "Requesting detected missing blocks", blocks = shortLog(missingBlocks)
node.requestManager.fetchAncestorBlocks(missingBlocks)
proc onSecond(node: BeaconNode, time: Moment) =
## This procedure will be called once per second.
if not(node.syncManager.inProgress):
node.handleMissingBlocks()
# Nim GC metrics (for the main thread)
updateThreadMetrics()
if node.config.stopAtSyncedEpoch != 0 and
node.dag.head.slot.epoch >= node.config.stopAtSyncedEpoch:
notice "Shutting down after having reached the target synced epoch"
bnStatus = BeaconNodeStatus.Stopping
proc runOnSecondLoop(node: BeaconNode) {.async.} =
const
sleepTime = chronos.seconds(1)
nanosecondsIn1s = float(sleepTime.nanoseconds)
while true:
let start = chronos.now(chronos.Moment)
await chronos.sleepAsync(sleepTime)
let afterSleep = chronos.now(chronos.Moment)
let sleepTime = afterSleep - start
node.onSecond(start)
let finished = chronos.now(chronos.Moment)
let processingTime = finished - afterSleep
ticks_delay.set(sleepTime.nanoseconds.float / nanosecondsIn1s)
trace "onSecond task completed", sleepTime, processingTime
func connectedPeersCount(node: BeaconNode): int =
len(node.network.peerPool)
proc installRestHandlers(restServer: RestServerRef, node: BeaconNode) =
restServer.router.installBeaconApiHandlers(node)
restServer.router.installConfigApiHandlers(node)
restServer.router.installDebugApiHandlers(node)
restServer.router.installEventApiHandlers(node)
restServer.router.installNimbusApiHandlers(node)
restServer.router.installNodeApiHandlers(node)
restServer.router.installValidatorApiHandlers(node)
if node.dag.lcDataStore.serve:
restServer.router.installLightClientApiHandlers(node)
from ./spec/datatypes/capella import SignedBeaconBlock
proc installMessageValidators(node: BeaconNode) =
# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/p2p-interface.md#attestations-and-aggregation
# These validators stay around the whole time, regardless of which specific
# subnets are subscribed to during any given epoch.
let forkDigests = node.dag.forkDigests
node.network.addValidator(
getBeaconBlocksTopic(forkDigests.phase0),
proc (signedBlock: phase0.SignedBeaconBlock): ValidationResult =
if node.shouldSyncOptimistically(node.currentSlot):
toValidationResult(
node.optimisticProcessor.processSignedBeaconBlock(signedBlock))
else:
toValidationResult(node.processor[].processSignedBeaconBlock(
MsgSource.gossip, signedBlock)))
template installPhase0Validators(digest: auto) =
for it in SubnetId:
closureScope:
let subnet_id = it
node.network.addAsyncValidator(
getAttestationTopic(digest, subnet_id),
# This proc needs to be within closureScope; don't lift out of loop.
proc(attestation: Attestation): Future[ValidationResult] {.async.} =
return toValidationResult(
await node.processor.processAttestation(
MsgSource.gossip, attestation, subnet_id)))
node.network.addAsyncValidator(
getAggregateAndProofsTopic(digest),
proc(signedAggregateAndProof: SignedAggregateAndProof):
Future[ValidationResult] {.async.} =
return toValidationResult(
await node.processor.processSignedAggregateAndProof(
MsgSource.gossip, signedAggregateAndProof, false)))
node.network.addValidator(
getAttesterSlashingsTopic(digest),
proc (attesterSlashing: AttesterSlashing): ValidationResult =
toValidationResult(
node.processor[].processAttesterSlashing(
MsgSource.gossip, attesterSlashing)))
node.network.addValidator(
getProposerSlashingsTopic(digest),
proc (proposerSlashing: ProposerSlashing): ValidationResult =
toValidationResult(
node.processor[].processProposerSlashing(
MsgSource.gossip, proposerSlashing)))
node.network.addValidator(
getVoluntaryExitsTopic(digest),
proc (signedVoluntaryExit: SignedVoluntaryExit): ValidationResult =
toValidationResult(
node.processor[].processSignedVoluntaryExit(
MsgSource.gossip, signedVoluntaryExit)))
installPhase0Validators(forkDigests.phase0)
# Validators introduced in phase0 are also used in Altair and Bellatrix, but
# with different fork digests
installPhase0Validators(forkDigests.altair)
installPhase0Validators(forkDigests.bellatrix)
installPhase0Validators(forkDigests.capella)
if node.dag.cfg.DENEB_FORK_EPOCH != FAR_FUTURE_EPOCH:
installPhase0Validators(forkDigests.deneb)
node.network.addValidator(
getBeaconBlocksTopic(forkDigests.altair),
proc (signedBlock: altair.SignedBeaconBlock): ValidationResult =
if node.shouldSyncOptimistically(node.currentSlot):
toValidationResult(
node.optimisticProcessor.processSignedBeaconBlock(signedBlock))
else:
toValidationResult(node.processor[].processSignedBeaconBlock(
MsgSource.gossip, signedBlock)))
node.network.addValidator(
getBeaconBlocksTopic(forkDigests.bellatrix),
proc (signedBlock: bellatrix.SignedBeaconBlock): ValidationResult =
if node.shouldSyncOptimistically(node.currentSlot):
toValidationResult(
node.optimisticProcessor.processSignedBeaconBlock(signedBlock))
else:
toValidationResult(node.processor[].processSignedBeaconBlock(
MsgSource.gossip, signedBlock)))
node.network.addValidator(
getBeaconBlocksTopic(forkDigests.capella),
proc (signedBlock: capella.SignedBeaconBlock): ValidationResult =
if node.shouldSyncOptimistically(node.currentSlot):
toValidationResult(
node.optimisticProcessor.processSignedBeaconBlock(signedBlock))
else:
toValidationResult(node.processor[].processSignedBeaconBlock(
MsgSource.gossip, signedBlock)))
if node.dag.cfg.DENEB_FORK_EPOCH != FAR_FUTURE_EPOCH:
node.network.addValidator(
getBeaconBlocksTopic(forkDigests.deneb),
proc (signedBlock: deneb.SignedBeaconBlock): ValidationResult =
if node.shouldSyncOptimistically(node.currentSlot):
toValidationResult(
node.optimisticProcessor.processSignedBeaconBlock(signedBlock))
else:
toValidationResult(node.processor[].processSignedBeaconBlock(
MsgSource.gossip, signedBlock)))
template installSyncCommitteeeValidators(digest: auto) =
for subcommitteeIdx in SyncSubcommitteeIndex:
closureScope:
let idx = subcommitteeIdx
node.network.addAsyncValidator(
getSyncCommitteeTopic(digest, idx),
# This proc needs to be within closureScope; don't lift out of loop.
proc(msg: SyncCommitteeMessage): Future[ValidationResult] {.async.} =
return toValidationResult(
await node.processor.processSyncCommitteeMessage(
MsgSource.gossip, msg, idx)))
node.network.addAsyncValidator(
getSyncCommitteeContributionAndProofTopic(digest),
proc(msg: SignedContributionAndProof): Future[ValidationResult] {.async.} =
return toValidationResult(
await node.processor.processSignedContributionAndProof(
MsgSource.gossip, msg)))
installSyncCommitteeeValidators(forkDigests.altair)
installSyncCommitteeeValidators(forkDigests.bellatrix)
installSyncCommitteeeValidators(forkDigests.capella)
if node.dag.cfg.DENEB_FORK_EPOCH != FAR_FUTURE_EPOCH:
installSyncCommitteeeValidators(forkDigests.deneb)
template installBlsToExecutionChangeValidators(digest: auto) =
node.network.addAsyncValidator(
getBlsToExecutionChangeTopic(digest),
proc(msg: SignedBLSToExecutionChange):
Future[ValidationResult] {.async.} =
return toValidationResult(
await node.processor.processBlsToExecutionChange(
MsgSource.gossip, msg)))
installBlsToExecutionChangeValidators(forkDigests.capella)
if node.dag.cfg.DENEB_FORK_EPOCH != FAR_FUTURE_EPOCH:
installBlsToExecutionChangeValidators(forkDigests.deneb)
node.installLightClientMessageValidators()
proc stop(node: BeaconNode) =
bnStatus = BeaconNodeStatus.Stopping
notice "Graceful shutdown"
if not node.config.inProcessValidators:
try:
node.vcProcess.close()
except Exception as exc:
warn "Couldn't close vc process", msg = exc.msg
try:
waitFor node.network.stop()
except CatchableError as exc:
warn "Couldn't stop network", msg = exc.msg
node.attachedValidators[].slashingProtection.close()
node.attachedValidators[].close()
node.db.close()
notice "Databases closed"
proc startBackfillTask(node: BeaconNode) {.async.} =
while node.dag.needsBackfill:
if not node.syncManager.inProgress:
# Only start the backfiller if it's needed _and_ head sync has completed -
# if we lose sync after having synced head, we could stop the backfilller,
# but this should be a fringe case - might as well keep the logic simple for
# now
node.backfiller.start()
return
await sleepAsync(chronos.seconds(2))
proc run(node: BeaconNode) {.raises: [Defect, CatchableError].} =
bnStatus = BeaconNodeStatus.Running
if not isNil(node.restServer):
node.restServer.installRestHandlers(node)
node.restServer.start()
if not isNil(node.keymanagerServer):
doAssert not isNil(node.keymanagerHost)
node.keymanagerServer.router.installKeymanagerHandlers(node.keymanagerHost[])
if node.keymanagerServer != node.restServer:
node.keymanagerServer.start()
let
wallTime = node.beaconClock.now()
wallSlot = wallTime.slotOrZero()
node.startLightClient()
node.requestManager.start()
node.syncManager.start()
if node.dag.needsBackfill(): asyncSpawn node.startBackfillTask()
waitFor node.updateGossipStatus(wallSlot)
asyncSpawn runSlotLoop(node, wallTime, onSlotStart)
asyncSpawn runOnSecondLoop(node)
asyncSpawn runQueueProcessingLoop(node.blockProcessor)
asyncSpawn runKeystoreCachePruningLoop(node.keystoreCache)
## Ctrl+C handling
proc controlCHandler() {.noconv.} =
when defined(windows):
# workaround for https://github.com/nim-lang/Nim/issues/4057
try:
setupForeignThreadGc()
except Exception as exc: raiseAssert exc.msg # shouldn't happen
notice "Shutting down after having received SIGINT"
bnStatus = BeaconNodeStatus.Stopping
try:
setControlCHook(controlCHandler)
except Exception as exc: # TODO Exception
warn "Cannot set ctrl-c handler", msg = exc.msg
# equivalent SIGTERM handler
when defined(posix):
proc SIGTERMHandler(signal: cint) {.noconv.} =
notice "Shutting down after having received SIGTERM"
bnStatus = BeaconNodeStatus.Stopping
c_signal(ansi_c.SIGTERM, SIGTERMHandler)
# main event loop
while bnStatus == BeaconNodeStatus.Running:
poll() # if poll fails, the network is broken
# time to say goodbye
node.stop()
var gPidFile: string
proc createPidFile(filename: string) {.raises: [Defect, IOError].} =
writeFile filename, $os.getCurrentProcessId()
gPidFile = filename
addQuitProc proc {.noconv.} = discard io2.removeFile(gPidFile)
proc initializeNetworking(node: BeaconNode) {.async.} =
node.installMessageValidators()
info "Listening to incoming network requests"
await node.network.startListening()
let addressFile = node.config.dataDir / "beacon_node.enr"
writeFile(addressFile, node.network.announcedENR.toURI)
await node.network.start()
proc start*(node: BeaconNode) {.raises: [Defect, CatchableError].} =
let
head = node.dag.head
finalizedHead = node.dag.finalizedHead
genesisTime = node.beaconClock.fromNow(start_beacon_time(Slot 0))
notice "Starting beacon node",
version = fullVersionStr,
nimVersion = NimVersion,
enr = node.network.announcedENR.toURI,
peerId = $node.network.switch.peerInfo.peerId,
timeSinceFinalization =
node.beaconClock.now() - finalizedHead.slot.start_beacon_time(),
head = shortLog(head),
justified = shortLog(getStateField(
node.dag.headState, current_justified_checkpoint)),
finalized = shortLog(getStateField(
node.dag.headState, finalized_checkpoint)),
finalizedHead = shortLog(finalizedHead),
SLOTS_PER_EPOCH,
SECONDS_PER_SLOT,
SPEC_VERSION,
dataDir = node.config.dataDir.string,
validators = node.attachedValidators[].count
if genesisTime.inFuture:
notice "Waiting for genesis", genesisIn = genesisTime.offset
waitFor node.initializeNetworking()
node.elManager.start()
node.run()
func formatGwei(amount: uint64): string =
# TODO This is implemented in a quite a silly way.
# Better routines for formatting decimal numbers
# should exists somewhere else.
let
eth = amount div 1000000000
remainder = amount mod 1000000000
result = $eth
if remainder != 0:
result.add '.'
let remainderStr = $remainder
for i in remainderStr.len ..< 9:
result.add '0'
result.add remainderStr
while result[^1] == '0':
result.setLen(result.len - 1)
when not defined(windows):
proc initStatusBar(node: BeaconNode) {.raises: [Defect, ValueError].} =
if not isatty(stdout): return
if not node.config.statusBarEnabled: return
try:
enableTrueColors()
except Exception as exc: # TODO Exception
error "Couldn't enable colors", err = exc.msg
proc dataResolver(expr: string): string {.raises: [Defect].} =
template justified: untyped = node.dag.head.atEpochStart(
getStateField(
node.dag.headState, current_justified_checkpoint).epoch)
# TODO:
# We should introduce a general API for resolving dot expressions
# such as `db.latest_block.slot` or `metrics.connected_peers`.
# Such an API can be shared between the RPC back-end, CLI tools
# such as ncli, a potential GraphQL back-end and so on.
# The status bar feature would allow the user to specify an
# arbitrary expression that is resolvable through this API.
case expr.toLowerAscii
of "version":
versionAsStr
of "full_version":
fullVersionStr
of "connected_peers":
$(node.connectedPeersCount)
of "head_root":
shortLog(node.dag.head.root)
of "head_epoch":
$(node.dag.head.slot.epoch)
of "head_epoch_slot":
$(node.dag.head.slot.since_epoch_start)
of "head_slot":
$(node.dag.head.slot)
of "justifed_root":
shortLog(justified.blck.root)
of "justifed_epoch":
$(justified.slot.epoch)
of "justifed_epoch_slot":
$(justified.slot.since_epoch_start)
of "justifed_slot":
$(justified.slot)
of "finalized_root":
shortLog(node.dag.finalizedHead.blck.root)
of "finalized_epoch":
$(node.dag.finalizedHead.slot.epoch)
of "finalized_epoch_slot":
$(node.dag.finalizedHead.slot.since_epoch_start)
of "finalized_slot":
$(node.dag.finalizedHead.slot)
of "epoch":
$node.currentSlot.epoch
of "epoch_slot":
$(node.currentSlot.since_epoch_start)
of "slot":
$node.currentSlot
of "slots_per_epoch":
$SLOTS_PER_EPOCH
of "slot_trailing_digits":
var slotStr = $node.currentSlot
if slotStr.len > 3: slotStr = slotStr[^3..^1]
slotStr
of "attached_validators_balance":
formatGwei(node.attachedValidatorBalanceTotal)
of "sync_status":
node.syncStatus(node.currentSlot)
else:
# We ignore typos for now and just render the expression
# as it was written. TODO: come up with a good way to show
# an error message to the user.
"$" & expr
var statusBar = StatusBarView.init(
node.config.statusBarContents,
dataResolver)
when compiles(defaultChroniclesStream.outputs[0].writer):
let tmp = defaultChroniclesStream.outputs[0].writer
defaultChroniclesStream.outputs[0].writer =
proc (logLevel: LogLevel, msg: LogOutputStr) {.raises: [Defect].} =
try:
# p.hidePrompt
erase statusBar
# p.writeLine msg
tmp(logLevel, msg)
render statusBar
# p.showPrompt
except Exception as e: # render raises Exception
logLoggingFailure(cstring(msg), e)
proc statusBarUpdatesPollingLoop() {.async.} =
try:
while true:
update statusBar
erase statusBar
render statusBar
await sleepAsync(chronos.seconds(1))
except CatchableError as exc:
warn "Failed to update status bar, no further updates", err = exc.msg
asyncSpawn statusBarUpdatesPollingLoop()
proc doRunBeaconNode(config: var BeaconNodeConf, rng: ref HmacDrbgContext) {.raises: [Defect, CatchableError].} =
info "Launching beacon node",
version = fullVersionStr,
bls_backend = $BLS_BACKEND,
cmdParams = commandLineParams(),
config
template ignoreDeprecatedOption(option: untyped): untyped =
if config.option.isSome:
warn "Config option is deprecated",
option = config.option.get
ignoreDeprecatedOption requireEngineAPI
ignoreDeprecatedOption safeSlotsToImportOptimistically
ignoreDeprecatedOption terminalTotalDifficultyOverride
ignoreDeprecatedOption optimistic
ignoreDeprecatedOption validatorMonitorTotals
ignoreDeprecatedOption web3ForcePolling
createPidFile(config.dataDir.string / "beacon_node.pid")
config.createDumpDirs()
if config.metricsEnabled:
let metricsAddress = config.metricsAddress
notice "Starting metrics HTTP server",
url = "http://" & $metricsAddress & ":" & $config.metricsPort & "/metrics"
try:
startMetricsHttpServer($metricsAddress, config.metricsPort)
except CatchableError as exc:
raise exc
except Exception as exc:
raiseAssert exc.msg # TODO fix metrics
# Nim GC metrics (for the main thread) will be collected in onSecond(), but
# we disable piggy-backing on other metrics here.
setSystemMetricsAutomaticUpdate(false)
# There are no managed event loops in here, to do a graceful shutdown, but
# letting the default Ctrl+C handler exit is safe, since we only read from
# the db.
let metadata = config.loadEth2Network()
# Updating the config based on the metadata certainly is not beautiful but it
# works
for node in metadata.bootstrapNodes:
config.bootstrapNodes.add node
if not (metadata.cfg.CAPELLA_FORK_EPOCH == FAR_FUTURE_EPOCH or
config.deploymentPhase == DeploymentPhase.None):
config.deploymentPhase = DeploymentPhase.CapellaReady
let node = BeaconNode.init(rng, config, metadata)
if bnStatus == BeaconNodeStatus.Stopping:
return
when not defined(windows):
# This status bar can lock a Windows terminal emulator, blocking the whole
# event loop (seen on Windows 10, with a default MSYS2 terminal).
initStatusBar(node)
if node.nickname != "":
dynamicLogScope(node = node.nickname): node.start()
else:
node.start()
proc doRecord(config: BeaconNodeConf, rng: var HmacDrbgContext) {.
raises: [Defect, CatchableError].} =
case config.recordCmd:
of RecordCmd.create:
let netKeys = getPersistentNetKeys(rng, config)
var fieldPairs: seq[FieldPair]
for field in config.fields:
let fieldPair = field.split(":")
if fieldPair.len > 1:
fieldPairs.add(toFieldPair(fieldPair[0], hexToSeqByte(fieldPair[1])))
else:
fatal "Invalid field pair"
quit QuitFailure
let record = enr.Record.init(
config.seqNumber,
netKeys.seckey.asEthKey,
some(config.ipExt),
some(config.tcpPortExt),
some(config.udpPortExt),
fieldPairs).expect("Record within size limits")
echo record.toURI()
of RecordCmd.print:
echo $config.recordPrint
proc doWeb3Cmd(config: BeaconNodeConf, rng: var HmacDrbgContext)
{.raises: [Defect, CatchableError].} =
case config.web3Cmd:
of Web3Cmd.test:
let metadata = config.loadEth2Network()
waitFor testWeb3Provider(config.web3TestUrl,
metadata.cfg.DEPOSIT_CONTRACT_ADDRESS,
rng.loadJwtSecret(config, allowCreate = true))
proc doSlashingExport(conf: BeaconNodeConf) {.raises: [IOError, Defect].}=
let
dir = conf.validatorsDir()
filetrunc = SlashingDbName
# TODO: Make it read-only https://github.com/status-im/nim-eth/issues/312
let db = SlashingProtectionDB.loadUnchecked(dir, filetrunc, readOnly = false)
let interchange = conf.exportedInterchangeFile.string
db.exportSlashingInterchange(interchange, conf.exportedValidators)
echo "Export finished: '", dir/filetrunc & ".sqlite3" , "' into '", interchange, "'"
proc doSlashingImport(conf: BeaconNodeConf) {.raises: [SerializationError, IOError, Defect].} =
let
dir = conf.validatorsDir()
filetrunc = SlashingDbName
# TODO: Make it read-only https://github.com/status-im/nim-eth/issues/312
let interchange = conf.importedInterchangeFile.string
var spdir: SPDIR
try:
spdir = Json.loadFile(interchange, SPDIR,
requireAllFields = true)
except SerializationError as err:
writeStackTrace()
stderr.write $Json & " load issue for file \"", interchange, "\"\n"
stderr.write err.formatMsg(interchange), "\n"
quit 1
# Open DB and handle migration from v1 to v2 if needed
let db = SlashingProtectionDB.init(
genesis_validators_root = Eth2Digest spdir.metadata.genesis_validators_root,
basePath = dir,
dbname = filetrunc,
modes = {kCompleteArchive}
)
# Now import the slashing interchange file
# Failures mode:
# - siError can only happen with invalid genesis_validators_root which would be caught above
# - siPartial can happen for invalid public keys, slashable blocks, slashable votes
let status = db.inclSPDIR(spdir)
doAssert status in {siSuccess, siPartial}
echo "Import finished: '", interchange, "' into '", dir/filetrunc & ".sqlite3", "'"
proc doSlashingInterchange(conf: BeaconNodeConf) {.raises: [Defect, CatchableError].} =
case conf.slashingdbCmd
of SlashProtCmd.`export`:
conf.doSlashingExport()
of SlashProtCmd.`import`:
conf.doSlashingImport()
proc handleStartUpCmd(config: var BeaconNodeConf) {.raises: [Defect, CatchableError].} =
# Single RNG instance for the application - will be seeded on construction
# and avoid using system resources (such as urandom) after that
let rng = keys.newRng()
case config.cmd
of BNStartUpCmd.noCommand: doRunBeaconNode(config, rng)
of BNStartUpCmd.deposits: doDeposits(config, rng[])
of BNStartUpCmd.wallets: doWallets(config, rng[])
of BNStartUpCmd.record: doRecord(config, rng[])
of BNStartUpCmd.web3: doWeb3Cmd(config, rng[])
of BNStartUpCmd.slashingdb: doSlashingInterchange(config)
of BNStartUpCmd.trustedNodeSync:
let
network = loadEth2Network(config)
cfg = network.cfg
genesis =
if network.genesisData.len > 0:
newClone(readSszForkedHashedBeaconState(
cfg,
network.genesisData.toOpenArrayByte(0, network.genesisData.high())))
else: nil
if config.blockId.isSome():
error "--blockId option has been removed - use --state-id instead!"
quit 1
waitFor doTrustedNodeSync(
cfg,
config.databaseDir,
config.eraDir,
config.trustedNodeUrl,
config.stateId,
config.backfillBlocks,
config.reindex,
config.downloadDepositSnapshot,
genesis)
{.pop.} # TODO moduletests exceptions
when defined(windows):
proc reportServiceStatus*(dwCurrentState, dwWin32ExitCode, dwWaitHint: DWORD) {.gcsafe.} =
gSvcStatus.dwCurrentState = dwCurrentState
gSvcStatus.dwWin32ExitCode = dwWin32ExitCode
gSvcStatus.dwWaitHint = dwWaitHint
if dwCurrentState == SERVICE_START_PENDING:
gSvcStatus.dwControlsAccepted = 0
else:
gSvcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP
# TODO
# We can use non-zero values for the `dwCheckPoint` parameter to report
# progress during lengthy operations such as start-up and shut down.
gSvcStatus.dwCheckPoint = 0
# Report the status of the service to the SCM.
let status = SetServiceStatus(gSvcStatusHandle, addr gSvcStatus)
debug "Service status updated", status
proc serviceControlHandler(dwCtrl: DWORD): WINBOOL {.stdcall.} =
case dwCtrl
of SERVICE_CONTROL_STOP:
# We re reporting that we plan stop the service in 10 seconds
reportServiceStatus(SERVICE_STOP_PENDING, NO_ERROR, 10_000)
bnStatus = BeaconNodeStatus.Stopping
of SERVICE_CONTROL_PAUSE, SERVICE_CONTROL_CONTINUE:
warn "The Nimbus service cannot be paused and resimed"
of SERVICE_CONTROL_INTERROGATE:
# The default behavior is correct.
# The service control manager will report our last status.
discard
else:
debug "Service received an unexpected user-defined control message",
msg = dwCtrl
proc serviceMainFunction(dwArgc: DWORD, lpszArgv: LPSTR) {.stdcall.} =
# The service is launched in a fresh thread created by Windows, so
# we must initialize the Nim GC here
setupForeignThreadGc()
gSvcStatusHandle = RegisterServiceCtrlHandler(
SERVICE_NAME,
serviceControlHandler)
gSvcStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS
gSvcStatus.dwServiceSpecificExitCode = 0
reportServiceStatus(SERVICE_RUNNING, NO_ERROR, 0)
info "Service thread started"
var config = makeBannerAndConfig(clientId, BeaconNodeConf)
handleStartUpCmd(config)
info "Service thread stopped"
reportServiceStatus(SERVICE_STOPPED, NO_ERROR, 0) # we have to report back when we stopped!
programMain:
var config = makeBannerAndConfig(clientId, BeaconNodeConf)
if not(checkAndCreateDataDir(string(config.dataDir))):
# We are unable to access/create data folder or data folder's
# permissions are insecure.
quit QuitFailure
setupLogging(config.logLevel, config.logStdout, config.logFile)
## This Ctrl+C handler exits the program in non-graceful way.
## It's responsible for handling Ctrl+C in sub-commands such
## as `wallets *` and `deposits *`. In a regular beacon node
## run, it will be overwritten later with a different handler
## performing a graceful exit.
proc exitImmediatelyOnCtrlC() {.noconv.} =
when defined(windows):
# workaround for https://github.com/nim-lang/Nim/issues/4057
setupForeignThreadGc()
# in case a password prompt disabled echoing
resetStdin()
echo "" # If we interrupt during an interactive prompt, this
# will move the cursor to the next line
notice "Shutting down after having received SIGINT"
quit 0
setControlCHook(exitImmediatelyOnCtrlC)
# equivalent SIGTERM handler
when defined(posix):
proc exitImmediatelyOnSIGTERM(signal: cint) {.noconv.} =
notice "Shutting down after having received SIGTERM"
quit 0
c_signal(ansi_c.SIGTERM, exitImmediatelyOnSIGTERM)
when defined(windows):
if config.runAsService:
var dispatchTable = [
SERVICE_TABLE_ENTRY(lpServiceName: SERVICE_NAME, lpServiceProc: serviceMainFunction),
SERVICE_TABLE_ENTRY(lpServiceName: nil, lpServiceProc: nil) # last entry must be nil
]
let status = StartServiceCtrlDispatcher(LPSERVICE_TABLE_ENTRY(addr dispatchTable[0]))
if status == 0:
fatal "Failed to start Windows service", errorCode = getLastError()
quit 1
else:
handleStartUpCmd(config)
else:
handleStartUpCmd(config)