cmd, eth: fix required blocks regression

cmd/geth/main.go

@@ -105,7 +105,7 @@ var (
 		utils.UltraLightFractionFlag,
 		utils.UltraLightOnlyAnnounceFlag,
 		utils.LightNoSyncServeFlag,
-		utils.EthPeerRequiredBlocksFlag,
+		utils.EthRequiredBlocksFlag,
 		utils.LegacyWhitelistFlag,
 		utils.BloomFilterSizeFlag,
 		utils.CacheFlag,

cmd/geth/usage.go

@@ -46,7 +46,7 @@ var AppHelpFlagGroups = []flags.FlagGroup{
 			utils.EthStatsURLFlag,
 			utils.IdentityFlag,
 			utils.LightKDFFlag,
-			utils.EthPeerRequiredBlocksFlag,
+			utils.EthRequiredBlocksFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 	},
 	{

cmd/utils/flags.go

@@ -240,13 +240,13 @@ var (
 		Name:  "lightkdf",
 		Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
 	}
-	EthPeerRequiredBlocksFlag = cli.StringFlag{
+	EthRequiredBlocksFlag = cli.StringFlag{
 		Name:  "eth.requiredblocks",
 		Usage: "Comma separated block number-to-hash mappings to require for peering (<number>=<hash>)",
 	}
 	LegacyWhitelistFlag = cli.StringFlag{
 		Name:  "whitelist",
-		Usage: "Comma separated block number-to-hash mappings to enforce (<number>=<hash>) (deprecated in favor of --peer.requiredblocks)",
+		Usage: "Comma separated block number-to-hash mappings to enforce (<number>=<hash>) (deprecated in favor of --eth.requiredblocks)",
 	}
 	BloomFilterSizeFlag = cli.Uint64Flag{
 		Name:  "bloomfilter.size",
@@ -1501,33 +1501,31 @@ func setMiner(ctx *cli.Context, cfg *miner.Config) {
 	}
 }
 
-func setPeerRequiredBlocks(ctx *cli.Context, cfg *ethconfig.Config) {
+func setRequiredBlocks(ctx *cli.Context, cfg *ethconfig.Config) {
-	peerRequiredBlocks := ctx.GlobalString(EthPeerRequiredBlocksFlag.Name)
+	requiredBlocks := ctx.GlobalString(EthRequiredBlocksFlag.Name)
-
+	if requiredBlocks == "" {
-	if peerRequiredBlocks == "" {
 		if ctx.GlobalIsSet(LegacyWhitelistFlag.Name) {
-			log.Warn("The flag --rpc is deprecated and will be removed, please use --peer.requiredblocks")
+			log.Warn("The flag --whitelist is deprecated and will be removed, please use --eth.requiredblocks")
-			peerRequiredBlocks = ctx.GlobalString(LegacyWhitelistFlag.Name)
+			requiredBlocks = ctx.GlobalString(LegacyWhitelistFlag.Name)
 		} else {
 			return
 		}
 	}
-
+	cfg.RequiredBlocks = make(map[uint64]common.Hash)
-	cfg.PeerRequiredBlocks = make(map[uint64]common.Hash)
+	for _, entry := range strings.Split(requiredBlocks, ",") {
-	for _, entry := range strings.Split(peerRequiredBlocks, ",") {
 		parts := strings.Split(entry, "=")
 		if len(parts) != 2 {
-			Fatalf("Invalid peer required block entry: %s", entry)
+			Fatalf("Invalid required block entry: %s", entry)
 		}
 		number, err := strconv.ParseUint(parts[0], 0, 64)
 		if err != nil {
-			Fatalf("Invalid peer required block number %s: %v", parts[0], err)
+			Fatalf("Invalid required block number %s: %v", parts[0], err)
 		}
 		var hash common.Hash
 		if err = hash.UnmarshalText([]byte(parts[1])); err != nil {
-			Fatalf("Invalid peer required block hash %s: %v", parts[1], err)
+			Fatalf("Invalid required block hash %s: %v", parts[1], err)
 		}
-		cfg.PeerRequiredBlocks[number] = hash
+		cfg.RequiredBlocks[number] = hash
 	}
 }
 
@@ -1594,7 +1592,7 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 	setTxPool(ctx, &cfg.TxPool)
 	setEthash(ctx, cfg)
 	setMiner(ctx, &cfg.Miner)
-	setPeerRequiredBlocks(ctx, cfg)
+	setRequiredBlocks(ctx, cfg)
 	setLes(ctx, cfg)
 
 	// Cap the cache allowance and tune the garbage collector

eth/backend.go

@@ -229,7 +229,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
 		BloomCache:     uint64(cacheLimit),
 		EventMux:       eth.eventMux,
 		Checkpoint:     checkpoint,
-		PeerRequiredBlocks: config.PeerRequiredBlocks,
+		RequiredBlocks: config.RequiredBlocks,
 	}); err != nil {
 		return nil, err
 	}

eth/ethconfig/config.go

@@ -138,10 +138,10 @@ type Config struct {
 
 	TxLookupLimit uint64 `toml:",omitempty"` // The maximum number of blocks from head whose tx indices are reserved.
 
-	// PeerRequiredBlocks is a set of block number -> hash mappings which must be in the
+	// RequiredBlocks is a set of block number -> hash mappings which must be in the
 	// canonical chain of all remote peers. Setting the option makes geth verify the
 	// presence of these blocks for every new peer connection.
-	PeerRequiredBlocks map[uint64]common.Hash `toml:"-"`
+	RequiredBlocks map[uint64]common.Hash `toml:"-"`
 
 	// Light client options
 	LightServ          int  `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests

eth/ethconfig/gen_config.go

@@ -26,7 +26,7 @@ func (c Config) MarshalTOML() (interface{}, error) {
 		NoPruning                       bool
 		NoPrefetch                      bool
 		TxLookupLimit                   uint64                 `toml:",omitempty"`
-		PeerRequiredBlocks              map[uint64]common.Hash `toml:"-"`
+		RequiredBlocks                  map[uint64]common.Hash `toml:"-"`
 		LightServ                       int                    `toml:",omitempty"`
 		LightIngress                    int                    `toml:",omitempty"`
 		LightEgress                     int                    `toml:",omitempty"`
@@ -71,7 +71,7 @@ func (c Config) MarshalTOML() (interface{}, error) {
 	enc.NoPruning = c.NoPruning
 	enc.NoPrefetch = c.NoPrefetch
 	enc.TxLookupLimit = c.TxLookupLimit
-	enc.PeerRequiredBlocks = c.PeerRequiredBlocks
+	enc.RequiredBlocks = c.RequiredBlocks
 	enc.LightServ = c.LightServ
 	enc.LightIngress = c.LightIngress
 	enc.LightEgress = c.LightEgress
@@ -120,7 +120,7 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 		NoPruning                       *bool
 		NoPrefetch                      *bool
 		TxLookupLimit                   *uint64                `toml:",omitempty"`
-		PeerRequiredBlocks              map[uint64]common.Hash `toml:"-"`
+		RequiredBlocks                  map[uint64]common.Hash `toml:"-"`
 		LightServ                       *int                   `toml:",omitempty"`
 		LightIngress                    *int                   `toml:",omitempty"`
 		LightEgress                     *int                   `toml:",omitempty"`
@@ -184,8 +184,8 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 	if dec.TxLookupLimit != nil {
 		c.TxLookupLimit = *dec.TxLookupLimit
 	}
-	if dec.PeerRequiredBlocks != nil {
+	if dec.RequiredBlocks != nil {
-		c.PeerRequiredBlocks = dec.PeerRequiredBlocks
+		c.RequiredBlocks = dec.RequiredBlocks
 	}
 	if dec.LightServ != nil {
 		c.LightServ = *dec.LightServ

eth/handler.go

@@ -86,8 +86,7 @@ type handlerConfig struct {
 	BloomCache     uint64                    // Megabytes to alloc for snap sync bloom
 	EventMux       *event.TypeMux            // Legacy event mux, deprecate for `feed`
 	Checkpoint     *params.TrustedCheckpoint // Hard coded checkpoint for sync challenges
-
+	RequiredBlocks map[uint64]common.Hash    // Hard coded map of required block hashes for sync challenges
-	PeerRequiredBlocks map[uint64]common.Hash // Hard coded map of required block hashes for sync challenges
 }
 
 type handler struct {
@@ -116,7 +115,7 @@ type handler struct {
 	txsSub        event.Subscription
 	minedBlockSub *event.TypeMuxSubscription
 
-	peerRequiredBlocks map[uint64]common.Hash
+	requiredBlocks map[uint64]common.Hash
 
 	// channels for fetcher, syncer, txsyncLoop
 	quitSync chan struct{}
@@ -141,7 +140,7 @@ func newHandler(config *handlerConfig) (*handler, error) {
 		chain:          config.Chain,
 		peers:          newPeerSet(),
 		merger:         config.Merger,
-		peerRequiredBlocks: config.PeerRequiredBlocks,
+		requiredBlocks: config.RequiredBlocks,
 		quitSync:       make(chan struct{}),
 	}
 	if config.Sync == downloader.FullSync {
@@ -425,7 +424,7 @@ func (h *handler) runEthPeer(peer *eth.Peer, handler eth.Handler) error {
 		}()
 	}
 	// If we have any explicit peer required block hashes, request them
-	for number := range h.peerRequiredBlocks {
+	for number, hash := range h.requiredBlocks {
 		resCh := make(chan *eth.Response)
 		if _, err := peer.RequestHeadersByNumber(number, 1, 0, false, resCh); err != nil {
 			return err