mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
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d2b39e9697
* Defensive pull tips, doubly-linked-tree * feature flag * gaz Co-authored-by: terencechain <terence@prysmaticlabs.com> Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
330 lines
11 KiB
Go
330 lines
11 KiB
Go
/*
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Package features defines which features are enabled for runtime
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in order to selectively enable certain features to maintain a stable runtime.
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The process for implementing new features using this package is as follows:
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1. Add a new CMD flag in flags.go, and place it in the proper list(s) var for its client.
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2. Add a condition for the flag in the proper Configure function(s) below.
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3. Place any "new" behavior in the `if flagEnabled` statement.
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4. Place any "previous" behavior in the `else` statement.
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5. Ensure any tests using the new feature fail if the flag isn't enabled.
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5a. Use the following to enable your flag for tests:
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cfg := &featureconfig.Flags{
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VerifyAttestationSigs: true,
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}
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resetCfg := featureconfig.InitWithReset(cfg)
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defer resetCfg()
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6. Add the string for the flags that should be running within E2E to E2EValidatorFlags
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and E2EBeaconChainFlags.
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*/
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package features
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import (
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"os"
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"os/signal"
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"sync"
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"syscall"
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"time"
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"github.com/prysmaticlabs/gohashtree"
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"github.com/prysmaticlabs/prysm/v3/cmd"
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"github.com/prysmaticlabs/prysm/v3/config/params"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli/v2"
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)
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var log = logrus.WithField("prefix", "flags")
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const enabledFeatureFlag = "Enabled feature flag"
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const disabledFeatureFlag = "Disabled feature flag"
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// Flags is a struct to represent which features the client will perform on runtime.
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type Flags struct {
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// Feature related flags.
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RemoteSlasherProtection bool // RemoteSlasherProtection utilizes a beacon node with --slasher mode for validator slashing protection.
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WriteSSZStateTransitions bool // WriteSSZStateTransitions to tmp directory.
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EnablePeerScorer bool // EnablePeerScorer enables experimental peer scoring in p2p.
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WriteWalletPasswordOnWebOnboarding bool // WriteWalletPasswordOnWebOnboarding writes the password to disk after Prysm web signup.
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EnableDoppelGanger bool // EnableDoppelGanger enables doppelganger protection on startup for the validator.
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EnableHistoricalSpaceRepresentation bool // EnableHistoricalSpaceRepresentation enables the saving of registry validators in separate buckets to save space
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// Logging related toggles.
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DisableGRPCConnectionLogs bool // Disables logging when a new grpc client has connected.
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// Slasher toggles.
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DisableBroadcastSlashings bool // DisableBroadcastSlashings disables p2p broadcasting of proposer and attester slashings.
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// Bug fixes related flags.
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AttestTimely bool // AttestTimely fixes #8185. It is gated behind a flag to ensure beacon node's fix can safely roll out first. We'll invert this in v1.1.0.
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EnableSlasher bool // Enable slasher in the beacon node runtime.
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// EnableSlashingProtectionPruning for the validator client.
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EnableSlashingProtectionPruning bool
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EnableNativeState bool // EnableNativeState defines whether the beacon state will be represented as a pure Go struct or a Go struct that wraps a proto struct.
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DisablePullTips bool // DisablePullTips disables experimental disabling of boundary checks.
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EnableDefensivePull bool // EnableDefensivePull enables exerimental back boundary checks.
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EnableVectorizedHTR bool // EnableVectorizedHTR specifies whether the beacon state will use the optimized sha256 routines.
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DisableForkchoiceDoublyLinkedTree bool // DisableForkChoiceDoublyLinkedTree specifies whether fork choice store will use a doubly linked tree.
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EnableBatchGossipAggregation bool // EnableBatchGossipAggregation specifies whether to further aggregate our gossip batches before verifying them.
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EnableOnlyBlindedBeaconBlocks bool // EnableOnlyBlindedBeaconBlocks enables only storing blinded beacon blocks in the DB post-Bellatrix fork.
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EnableStartOptimistic bool // EnableStartOptimistic treats every block as optimistic at startup.
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// KeystoreImportDebounceInterval specifies the time duration the validator waits to reload new keys if they have
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// changed on disk. This feature is for advanced use cases only.
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KeystoreImportDebounceInterval time.Duration
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}
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var featureConfig *Flags
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var featureConfigLock sync.RWMutex
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// Get retrieves feature config.
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func Get() *Flags {
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featureConfigLock.RLock()
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defer featureConfigLock.RUnlock()
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if featureConfig == nil {
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return &Flags{}
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}
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return featureConfig
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}
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// Init sets the global config equal to the config that is passed in.
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func Init(c *Flags) {
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featureConfigLock.Lock()
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defer featureConfigLock.Unlock()
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featureConfig = c
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}
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// InitWithReset sets the global config and returns function that is used to reset configuration.
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func InitWithReset(c *Flags) func() {
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var prevConfig Flags
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if featureConfig != nil {
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prevConfig = *featureConfig
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} else {
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prevConfig = Flags{}
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}
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resetFunc := func() {
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Init(&prevConfig)
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}
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Init(c)
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return resetFunc
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}
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// configureTestnet sets the config according to specified testnet flag
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func configureTestnet(ctx *cli.Context) error {
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if ctx.Bool(PraterTestnet.Name) {
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log.Warn("Running on the Prater Testnet")
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if err := params.SetActive(params.PraterConfig().Copy()); err != nil {
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return err
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}
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applyPraterFeatureFlags(ctx)
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params.UsePraterNetworkConfig()
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} else if ctx.Bool(RopstenTestnet.Name) {
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log.Warn("Running on the Ropsten Beacon Chain Testnet")
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if err := params.SetActive(params.RopstenConfig().Copy()); err != nil {
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return err
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}
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applyRopstenFeatureFlags(ctx)
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params.UseRopstenNetworkConfig()
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} else if ctx.Bool(SepoliaTestnet.Name) {
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log.Warn("Running on the Sepolia Beacon Chain Testnet")
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if err := params.SetActive(params.SepoliaConfig().Copy()); err != nil {
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return err
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}
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applySepoliaFeatureFlags(ctx)
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params.UseSepoliaNetworkConfig()
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} else {
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if ctx.IsSet(cmd.ChainConfigFileFlag.Name) {
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log.Warn("Running on custom Ethereum network specified in a chain configuration yaml file")
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} else {
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log.Warn("Running on Ethereum Mainnet")
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}
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if err := params.SetActive(params.MainnetConfig().Copy()); err != nil {
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return err
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}
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}
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return nil
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}
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// Insert feature flags within the function to be enabled for Prater testnet.
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func applyPraterFeatureFlags(ctx *cli.Context) {
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if err := ctx.Set(EnableOnlyBlindedBeaconBlocks.Names()[0], "true"); err != nil {
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log.WithError(err).Debug("error enabling only saving blinded beacon blocks flag")
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}
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}
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// Insert feature flags within the function to be enabled for Ropsten testnet.
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func applyRopstenFeatureFlags(ctx *cli.Context) {
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}
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// Insert feature flags within the function to be enabled for Sepolia testnet.
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func applySepoliaFeatureFlags(ctx *cli.Context) {
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}
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// ConfigureBeaconChain sets the global config based
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// on what flags are enabled for the beacon-chain client.
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func ConfigureBeaconChain(ctx *cli.Context) error {
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complainOnDeprecatedFlags(ctx)
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cfg := &Flags{}
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if ctx.Bool(devModeFlag.Name) {
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enableDevModeFlags(ctx)
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}
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if err := configureTestnet(ctx); err != nil {
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return err
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}
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if ctx.Bool(writeSSZStateTransitionsFlag.Name) {
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logEnabled(writeSSZStateTransitionsFlag)
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cfg.WriteSSZStateTransitions = true
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}
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if ctx.IsSet(disableGRPCConnectionLogging.Name) {
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logDisabled(disableGRPCConnectionLogging)
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cfg.DisableGRPCConnectionLogs = true
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}
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cfg.EnablePeerScorer = true
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if ctx.Bool(disablePeerScorer.Name) {
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logDisabled(disablePeerScorer)
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cfg.EnablePeerScorer = false
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}
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if ctx.Bool(disableBroadcastSlashingFlag.Name) {
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logDisabled(disableBroadcastSlashingFlag)
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cfg.DisableBroadcastSlashings = true
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}
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if ctx.Bool(enableSlasherFlag.Name) {
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log.WithField(enableSlasherFlag.Name, enableSlasherFlag.Usage).Warn(enabledFeatureFlag)
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cfg.EnableSlasher = true
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}
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if ctx.Bool(enableHistoricalSpaceRepresentation.Name) {
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log.WithField(enableHistoricalSpaceRepresentation.Name, enableHistoricalSpaceRepresentation.Usage).Warn(enabledFeatureFlag)
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cfg.EnableHistoricalSpaceRepresentation = true
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}
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cfg.EnableNativeState = true
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if ctx.Bool(disableNativeState.Name) {
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logDisabled(disableNativeState)
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cfg.EnableNativeState = false
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}
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if ctx.Bool(disablePullTips.Name) {
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logEnabled(disablePullTips)
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cfg.DisablePullTips = true
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}
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if ctx.Bool(enableDefensivePull.Name) {
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logEnabled(enableDefensivePull)
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cfg.EnableDefensivePull = true
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}
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if ctx.Bool(disableVecHTR.Name) {
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logEnabled(disableVecHTR)
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} else {
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sigc := make(chan os.Signal, 1)
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signal.Notify(sigc, syscall.SIGILL)
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defer signal.Stop(sigc)
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buffer := make([][32]byte, 2)
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err := gohashtree.Hash(buffer, buffer)
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if err != nil {
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log.Error("could not test if gohashtree is supported")
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} else {
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t := time.NewTimer(time.Millisecond * 100)
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select {
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case <-sigc:
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log.Error("gohashtree is not supported in this CPU")
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case <-t.C:
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cfg.EnableVectorizedHTR = true
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}
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}
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}
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if ctx.Bool(disableForkChoiceDoublyLinkedTree.Name) {
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logEnabled(disableForkChoiceDoublyLinkedTree)
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cfg.DisableForkchoiceDoublyLinkedTree = true
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}
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cfg.EnableBatchGossipAggregation = true
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if ctx.Bool(disableGossipBatchAggregation.Name) {
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logDisabled(disableGossipBatchAggregation)
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cfg.EnableBatchGossipAggregation = false
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}
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if ctx.Bool(EnableOnlyBlindedBeaconBlocks.Name) {
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logEnabled(EnableOnlyBlindedBeaconBlocks)
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cfg.EnableOnlyBlindedBeaconBlocks = true
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}
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if ctx.Bool(enableStartupOptimistic.Name) {
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logEnabled(enableStartupOptimistic)
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cfg.EnableStartOptimistic = true
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}
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Init(cfg)
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return nil
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}
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// ConfigureValidator sets the global config based
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// on what flags are enabled for the validator client.
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func ConfigureValidator(ctx *cli.Context) error {
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complainOnDeprecatedFlags(ctx)
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cfg := &Flags{}
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if err := configureTestnet(ctx); err != nil {
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return err
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}
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if ctx.Bool(enableExternalSlasherProtectionFlag.Name) {
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log.Fatal(
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"Remote slashing protection has currently been disabled in Prysm due to safety concerns. " +
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"We appreciate your understanding in our desire to keep Prysm validators safe.",
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)
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}
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if ctx.Bool(writeWalletPasswordOnWebOnboarding.Name) {
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logEnabled(writeWalletPasswordOnWebOnboarding)
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cfg.WriteWalletPasswordOnWebOnboarding = true
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}
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if ctx.Bool(attestTimely.Name) {
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logEnabled(attestTimely)
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cfg.AttestTimely = true
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}
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if ctx.Bool(enableSlashingProtectionPruning.Name) {
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logEnabled(enableSlashingProtectionPruning)
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cfg.EnableSlashingProtectionPruning = true
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}
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if ctx.Bool(enableDoppelGangerProtection.Name) {
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logEnabled(enableDoppelGangerProtection)
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cfg.EnableDoppelGanger = true
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}
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cfg.KeystoreImportDebounceInterval = ctx.Duration(dynamicKeyReloadDebounceInterval.Name)
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Init(cfg)
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return nil
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}
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// enableDevModeFlags switches development mode features on.
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func enableDevModeFlags(ctx *cli.Context) {
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log.Warn("Enabling development mode flags")
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for _, f := range devModeFlags {
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log.WithField("flag", f.Names()[0]).Debug("Enabling development mode flag")
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if !ctx.IsSet(f.Names()[0]) {
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if err := ctx.Set(f.Names()[0], "true"); err != nil {
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log.WithError(err).Debug("Error enabling development mode flag")
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}
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}
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}
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}
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func complainOnDeprecatedFlags(ctx *cli.Context) {
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for _, f := range deprecatedFlags {
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if ctx.IsSet(f.Names()[0]) {
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log.Errorf("%s is deprecated and has no effect. Do not use this flag, it will be deleted soon.", f.Names()[0])
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}
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}
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}
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func logEnabled(flag cli.DocGenerationFlag) {
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var name string
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if names := flag.Names(); len(names) > 0 {
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name = names[0]
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}
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log.WithField(name, flag.GetUsage()).Warn(enabledFeatureFlag)
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}
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func logDisabled(flag cli.DocGenerationFlag) {
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var name string
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if names := flag.Names(); len(names) > 0 {
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name = names[0]
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}
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log.WithField(name, flag.GetUsage()).Warn(disabledFeatureFlag)
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}
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