Merge pull request #27 from binance-chain/1.0.1.beta.2

[R4R]add niels fork

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## v1.0.1-beta
+
+IMPROVEMENT
+* [\#22](https://github.com/binance-chain/bsc/pull/22) resolve best practice advice 
+
+FEATURES
+* [\#23](https://github.com/binance-chain/bsc/pull/23) enforce backoff time for out-turn validator
+
+BUGFIX
+* [\#25](https://github.com/binance-chain/bsc/pull/25) minor fix for ramanujan upgrade
+
+UPGRADE
+* [\#26](https://github.com/binance-chain/bsc/pull/26) update chapel network config for ramanujan fork
+
 ## v1.0.0-beta.0
 
 FEATURES

cmd/geth/retesteth.go

@@ -36,6 +36,7 @@ import (
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/systemcontracts"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -133,6 +134,7 @@ type CParamsParams struct {
 	ConstantinopleForkBlock    *math.HexOrDecimal64  `json:"constantinopleForkBlock"`
 	ConstantinopleFixForkBlock *math.HexOrDecimal64  `json:"constantinopleFixForkBlock"`
 	IstanbulBlock              *math.HexOrDecimal64  `json:"istanbulForkBlock"`
+	RamanujanForkBlock         *math.HexOrDecimal64  `json:"ramanujanForkBlock"`
 	ChainID                    *math.HexOrDecimal256 `json:"chainID"`
 	MaximumExtraDataSize       math.HexOrDecimal64   `json:"maximumExtraDataSize"`
 	TieBreakingGas             bool                  `json:"tieBreakingGas"`
@@ -322,6 +324,7 @@ func (api *RetestethAPI) SetChainParams(ctx context.Context, chainParams ChainPa
 		constantinopleBlock *big.Int
 		petersburgBlock     *big.Int
 		istanbulBlock       *big.Int
+		ramanujanBlock      *big.Int
 	)
 	if chainParams.Params.HomesteadForkBlock != nil {
 		homesteadBlock = big.NewInt(int64(*chainParams.Params.HomesteadForkBlock))
@@ -351,6 +354,9 @@ func (api *RetestethAPI) SetChainParams(ctx context.Context, chainParams ChainPa
 	if chainParams.Params.IstanbulBlock != nil {
 		istanbulBlock = big.NewInt(int64(*chainParams.Params.IstanbulBlock))
 	}
+	if chainParams.Params.RamanujanForkBlock != nil {
+		ramanujanBlock = big.NewInt(int64(*chainParams.Params.RamanujanForkBlock))
+	}
 
 	genesis := &core.Genesis{
 		Config: &params.ChainConfig{
@@ -365,6 +371,7 @@ func (api *RetestethAPI) SetChainParams(ctx context.Context, chainParams ChainPa
 			ConstantinopleBlock: constantinopleBlock,
 			PetersburgBlock:     petersburgBlock,
 			IstanbulBlock:       istanbulBlock,
+			RamanujanBlock:      ramanujanBlock,
 		},
 		Nonce:      uint64(chainParams.Genesis.Nonce),
 		Timestamp:  uint64(chainParams.Genesis.Timestamp),
@@ -501,6 +508,7 @@ func (api *RetestethAPI) mineBlock() error {
 	if api.chainConfig.DAOForkSupport && api.chainConfig.DAOForkBlock != nil && api.chainConfig.DAOForkBlock.Cmp(header.Number) == 0 {
 		misc.ApplyDAOHardFork(statedb)
 	}
+	systemcontracts.UpgradeBuildInSystemContract(api.chainConfig, header.Number, statedb)
 	gasPool := new(core.GasPool).AddGas(header.GasLimit)
 	txCount := 0
 	var txs []*types.Transaction

consensus/parlia/parlia.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/misc"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/systemcontracts"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -48,21 +49,11 @@ const (
 	extraSeal   = 65 // Fixed number of extra-data suffix bytes reserved for signer seal
 
 	validatorBytesLength = common.AddressLength
-	wiggleTime           = 500 * time.Millisecond // Random delay (per signer) to allow concurrent signers
+	wiggleTime           = uint64(1) // second, Random delay (per signer) to allow concurrent signers
-	fixedBackOffTime     = 200 * time.Millisecond
+	initialBackOffTime   = uint64(1) // second
 
 	systemRewardPercent = 4 // it means 1/2^4 = 1/16 percentage of gas fee incoming will be distributed to system
 
-	// genesis contracts
-	ValidatorContract          = "0x0000000000000000000000000000000000001000"
-	SlashContract              = "0x0000000000000000000000000000000000001001"
-	SystemRewardContract       = "0x0000000000000000000000000000000000001002"
-	LightClientContract        = "0x0000000000000000000000000000000000001003"
-	TokenHubContract           = "0x0000000000000000000000000000000000001004"
-	RelayerIncentivizeContract = "0x0000000000000000000000000000000000001005"
-	RelayerHubContract         = "0x0000000000000000000000000000000000001006"
-	GovHubContract             = "0x0000000000000000000000000000000000001007"
-	CrossChainContract         = "0x0000000000000000000000000000000000002000"
 )
 
 var (
@@ -73,15 +64,15 @@ var (
 	maxSystemBalance = new(big.Int).Mul(big.NewInt(100), big.NewInt(params.Ether))
 
 	systemContracts = map[common.Address]bool{
-		common.HexToAddress(ValidatorContract):          true,
+		common.HexToAddress(systemcontracts.ValidatorContract):          true,
-		common.HexToAddress(SlashContract):              true,
+		common.HexToAddress(systemcontracts.SlashContract):              true,
-		common.HexToAddress(SystemRewardContract):       true,
+		common.HexToAddress(systemcontracts.SystemRewardContract):       true,
-		common.HexToAddress(LightClientContract):        true,
+		common.HexToAddress(systemcontracts.LightClientContract):        true,
-		common.HexToAddress(RelayerHubContract):         true,
+		common.HexToAddress(systemcontracts.RelayerHubContract):         true,
-		common.HexToAddress(GovHubContract):             true,
+		common.HexToAddress(systemcontracts.GovHubContract):             true,
-		common.HexToAddress(TokenHubContract):           true,
+		common.HexToAddress(systemcontracts.TokenHubContract):           true,
-		common.HexToAddress(RelayerIncentivizeContract): true,
+		common.HexToAddress(systemcontracts.RelayerIncentivizeContract): true,
-		common.HexToAddress(CrossChainContract): true,
+		common.HexToAddress(systemcontracts.CrossChainContract):         true,
 	}
 )
 
@@ -395,10 +386,20 @@ func (p *Parlia) verifyCascadingFields(chain consensus.ChainReader, header *type
 		return consensus.ErrUnknownAncestor
 	}
 
+	snap, err := p.snapshot(chain, number-1, header.ParentHash, parents)
+	if err != nil {
+		return err
+	}
+
+	err = p.blockTimeVerifyForRamanujanFork(snap, header, parent)
+	if err != nil {
+		return err
+	}
+
 	// Verify that the gas limit is <= 2^63-1
-	cap := uint64(0x7fffffffffffffff)
+	capacity := uint64(0x7fffffffffffffff)
-	if header.GasLimit > cap {
+	if header.GasLimit > capacity {
-		return fmt.Errorf("invalid gasLimit: have %v, max %v", header.GasLimit, cap)
+		return fmt.Errorf("invalid gasLimit: have %v, max %v", header.GasLimit, capacity)
 	}
 	// Verify that the gasUsed is <= gasLimit
 	if header.GasUsed > header.GasLimit {
@@ -570,7 +571,7 @@ func (p *Parlia) verifySeal(chain consensus.ChainReader, header *types.Header, p
 
 	// Ensure that the difficulty corresponds to the turn-ness of the signer
 	if !p.fakeDiff {
-		inturn := snap.inturn(header.Number.Uint64(), signer)
+		inturn := snap.inturn(signer)
 		if inturn && header.Difficulty.Cmp(diffInTurn) != 0 {
 			return errWrongDifficulty
 		}
@@ -626,8 +627,7 @@ func (p *Parlia) Prepare(chain consensus.ChainReader, header *types.Header) erro
 	if parent == nil {
 		return consensus.ErrUnknownAncestor
 	}
-
+	header.Time = p.blockTimeForRamanujanFork(snap, header, parent)
-	header.Time = parent.Time + p.config.Period
 	if header.Time < uint64(time.Now().Unix()) {
 		header.Time = uint64(time.Now().Unix())
 	}
@@ -809,14 +809,7 @@ func (p *Parlia) Seal(chain consensus.ChainReader, block *types.Block, results c
 	}
 
 	// Sweet, the protocol permits us to sign the block, wait for our time
-	delay := time.Unix(int64(header.Time), 0).Sub(time.Now()) // nolint: gosimple
+	delay := p.delayForRamanujanFork(snap, header)
-	if header.Difficulty.Cmp(diffNoTurn) == 0 {
-		// It's not our turn explicitly to sign, delay it a bit
-		wiggle := time.Duration(len(snap.Validators)/2+1) * wiggleTime
-		delay += time.Duration(fixedBackOffTime) + time.Duration(rand.Int63n(int64(wiggle)))
-
-		log.Trace("Out-of-turn signing requested", "wiggle", common.PrettyDuration(wiggle))
-	}
 
 	log.Info("Sealing block with", "number", number, "delay", delay, "headerDifficulty", header.Difficulty, "val", val.Hex())
 
@@ -861,7 +854,7 @@ func (p *Parlia) CalcDifficulty(chain consensus.ChainReader, time uint64, parent
 // that a new block should have based on the previous blocks in the chain and the
 // current signer.
 func CalcDifficulty(snap *Snapshot, signer common.Address) *big.Int {
-	if snap.inturn(snap.Number+1, signer) {
+	if snap.inturn(signer) {
 		return new(big.Int).Set(diffInTurn)
 	}
 	return new(big.Int).Set(diffNoTurn)
@@ -907,7 +900,7 @@ func (p *Parlia) getCurrentValidators(blockHash common.Hash) ([]common.Address,
 	}
 	// call
 	msgData := (hexutil.Bytes)(data)
-	toAddress := common.HexToAddress(ValidatorContract)
+	toAddress := common.HexToAddress(systemcontracts.ValidatorContract)
 	gas := (hexutil.Uint64)(uint64(math.MaxUint64 / 2))
 	result, err := p.ethAPI.Call(ctx, ethapi.CallArgs{
 		Gas:  &gas,
@@ -945,7 +938,7 @@ func (p *Parlia) distributeIncoming(val common.Address, state *state.StateDB, he
 	state.SetBalance(consensus.SystemAddress, big.NewInt(0))
 	state.AddBalance(coinbase, balance)
 
-	doDistributeSysReward := state.GetBalance(common.HexToAddress(SystemRewardContract)).Cmp(maxSystemBalance) < 0
+	doDistributeSysReward := state.GetBalance(common.HexToAddress(systemcontracts.SystemRewardContract)).Cmp(maxSystemBalance) < 0
 	if doDistributeSysReward {
 		var rewards = new(big.Int)
 		rewards = rewards.Rsh(balance, systemRewardPercent)
@@ -977,7 +970,7 @@ func (p *Parlia) slash(spoiledVal common.Address, state *state.StateDB, header *
 		return err
 	}
 	// get system message
-	msg := p.getSystemMessage(header.Coinbase, common.HexToAddress(SlashContract), data, common.Big0)
+	msg := p.getSystemMessage(header.Coinbase, common.HexToAddress(systemcontracts.SlashContract), data, common.Big0)
 	// apply message
 	return p.applyTransaction(msg, state, header, chain, txs, receipts, receivedTxs, usedGas, mining)
 }
@@ -988,7 +981,15 @@ func (p *Parlia) initContract(state *state.StateDB, header *types.Header, chain
 	// method
 	method := "init"
 	// contracts
-	contracts := []string{ValidatorContract, SlashContract, LightClientContract, RelayerHubContract, TokenHubContract, RelayerIncentivizeContract, CrossChainContract}
+	contracts := []string{
+		systemcontracts.ValidatorContract,
+		systemcontracts.SlashContract,
+		systemcontracts.LightClientContract,
+		systemcontracts.RelayerHubContract,
+		systemcontracts.TokenHubContract,
+		systemcontracts.RelayerIncentivizeContract,
+		systemcontracts.CrossChainContract,
+	}
 	// get packed data
 	data, err := p.validatorSetABI.Pack(method)
 	if err != nil {
@@ -1010,7 +1011,7 @@ func (p *Parlia) initContract(state *state.StateDB, header *types.Header, chain
 func (p *Parlia) distributeToSystem(amount *big.Int, state *state.StateDB, header *types.Header, chain core.ChainContext,
 	txs *[]*types.Transaction, receipts *[]*types.Receipt, receivedTxs *[]*types.Transaction, usedGas *uint64, mining bool) error {
 	// get system message
-	msg := p.getSystemMessage(header.Coinbase, common.HexToAddress(SystemRewardContract), nil, amount)
+	msg := p.getSystemMessage(header.Coinbase, common.HexToAddress(systemcontracts.SystemRewardContract), nil, amount)
 	// apply message
 	return p.applyTransaction(msg, state, header, chain, txs, receipts, receivedTxs, usedGas, mining)
 }
@@ -1031,7 +1032,7 @@ func (p *Parlia) distributeToValidator(amount *big.Int, validator common.Address
 		return err
 	}
 	// get system message
-	msg := p.getSystemMessage(header.Coinbase, common.HexToAddress(ValidatorContract), data, amount)
+	msg := p.getSystemMessage(header.Coinbase, common.HexToAddress(systemcontracts.ValidatorContract), data, amount)
 	// apply message
 	return p.applyTransaction(msg, state, header, chain, txs, receipts, receivedTxs, usedGas, mining)
 }
@@ -1072,8 +1073,8 @@ func (p *Parlia) applyTransaction(
 			return errors.New("supposed to get a actual transaction, but get none")
 		}
 		actualTx := (*receivedTxs)[0]
-		if bytes.Compare(p.signer.Hash(actualTx).Bytes(), expectedHash.Bytes()) != 0 {
+		if !bytes.Equal(p.signer.Hash(actualTx).Bytes(), expectedHash.Bytes()) {
-			return errors.New(fmt.Sprintf("expected tx hash %v, get %v", expectedHash.String(), actualTx.Hash().String()))
+			return fmt.Errorf("expected tx hash %v, get %v", expectedHash.String(), actualTx.Hash().String())
 		}
 		expectedTx = actualTx
 		// move to next
@@ -1140,6 +1141,30 @@ func encodeSigHeader(w io.Writer, header *types.Header, chainId *big.Int) {
 	}
 }
 
+func backOffTime(snap *Snapshot, val common.Address) uint64 {
+	if snap.inturn(val) {
+		return 0
+	} else {
+		idx := snap.indexOfVal(val)
+		if idx < 0 {
+			// The backOffTime does not matter when a validator is not authorized.
+			return 0
+		}
+		s := rand.NewSource(int64(snap.Number))
+		r := rand.New(s)
+		n := len(snap.Validators)
+		backOffSteps := make([]uint64, 0, n)
+		for idx := uint64(0); idx < uint64(n); idx++ {
+			backOffSteps = append(backOffSteps, idx)
+		}
+		r.Shuffle(n, func(i, j int) {
+			backOffSteps[i], backOffSteps[j] = backOffSteps[j], backOffSteps[i]
+		})
+		delay := initialBackOffTime + backOffSteps[idx]*wiggleTime
+		return delay
+	}
+}
+
 // chain context
 type chainContext struct {
 	Chain  consensus.ChainReader
@@ -1194,4 +1219,3 @@ func applyMessage(
 	}
 	return msg.Gas() - returnGas, err
 }
-

consensus/parlia/parlia_test.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"math/rand"
 	"testing"
-	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 )
@@ -57,7 +56,7 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
 		return validators[idx]
 	}
 
-	downDelay := time.Duration(0)
+	downDelay := uint64(0)
 	for h := 1; h <= downBlocks; h++ {
 		if limit := uint64(totalValidators/2 + 1); uint64(h) >= limit {
 			delete(recents, uint64(h)-limit)
@@ -73,7 +72,7 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
 			if len(candidates) == 0 {
 				panic("can not test such case")
 			}
-			idx, delay := producerBlockDelay(candidates, totalValidators)
+			idx, delay := producerBlockDelay(candidates, h, totalValidators)
 			downDelay = downDelay + delay
 			recents[uint64(h)] = idx
 		} else {
@@ -81,13 +80,13 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
 		}
 	}
 	fmt.Printf("average delay is %v  when there is %d validators and %d is down \n",
-		downDelay/time.Duration(downBlocks), totalValidators, downValidators)
+		downDelay/uint64(downBlocks), totalValidators, downValidators)
 
 	for i := 0; i < downValidators; i++ {
 		validators[down[i]] = true
 	}
 
-	recoverDelay := time.Duration(0)
+	recoverDelay := uint64(0)
 	lastseen := downBlocks
 	for h := downBlocks + 1; h <= downBlocks+recoverBlocks; h++ {
 		if limit := uint64(totalValidators/2 + 1); uint64(h) >= limit {
@@ -105,7 +104,7 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
 			if len(candidates) == 0 {
 				panic("can not test such case")
 			}
-			idx, delay := producerBlockDelay(candidates, totalValidators)
+			idx, delay := producerBlockDelay(candidates, h, totalValidators)
 			recoverDelay = recoverDelay + delay
 			recents[uint64(h)] = idx
 		} else {
@@ -116,18 +115,28 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
 		recoverDelay, downValidators, lastseen)
 }
 
-func producerBlockDelay(candidates map[int]bool, numOfValidators int) (int, time.Duration) {
+func producerBlockDelay(candidates map[int]bool, height, numOfValidators int) (int, uint64) {
-	minDur := time.Duration(0)
+
-	minIdx := 0
+	s := rand.NewSource(int64(height))
-	wiggle := time.Duration(numOfValidators/2+1) * wiggleTime
+	r := rand.New(s)
-	for idx := range candidates {
+	n := numOfValidators
-		sleepTime := rand.Int63n(int64(wiggle))
+	backOffSteps := make([]int, 0, n)
-		if int64(minDur) < sleepTime {
+	for idx := 0; idx < n; idx++ {
-			minDur = time.Duration(rand.Int63n(int64(wiggle)))
+		backOffSteps = append(backOffSteps, idx)
-			minIdx = idx
+	}
+	r.Shuffle(n, func(i, j int) {
+		backOffSteps[i], backOffSteps[j] = backOffSteps[j], backOffSteps[i]
+	})
+	minDelay := numOfValidators
+	minCandidate := 0
+	for c := range candidates {
+		if minDelay > backOffSteps[c] {
+			minDelay = backOffSteps[c]
+			minCandidate = c
 		}
 	}
-	return minIdx, minDur
+	delay := initialBackOffTime + uint64(minDelay)*wiggleTime
+	return minCandidate, delay
 }
 
 func randomAddress() common.Address {

consensus/parlia/ramanujanfork.go

@@ -0,0 +1,44 @@
+package parlia
+
+import (
+	"math/rand"
+	"time"
+
+	"github.com/ethereum/go-ethereum/consensus"
+	"github.com/ethereum/go-ethereum/core/types"
+)
+
+const (
+	wiggleTimeBeforeFork       = 500 * time.Millisecond // Random delay (per signer) to allow concurrent signers
+	fixedBackOffTimeBeforeFork = 200 * time.Millisecond
+)
+
+func (p *Parlia) delayForRamanujanFork(snap *Snapshot, header *types.Header) time.Duration {
+	delay := time.Until(time.Unix(int64(header.Time), 0)) // nolint: gosimple
+	if p.chainConfig.IsRamanujan(header.Number) {
+		return delay
+	}
+	if header.Difficulty.Cmp(diffNoTurn) == 0 {
+		// It's not our turn explicitly to sign, delay it a bit
+		wiggle := time.Duration(len(snap.Validators)/2+1) * wiggleTimeBeforeFork
+		delay += time.Duration(fixedBackOffTimeBeforeFork) + time.Duration(rand.Int63n(int64(wiggle)))
+	}
+	return delay
+}
+
+func (p *Parlia) blockTimeForRamanujanFork(snap *Snapshot, header, parent *types.Header) uint64 {
+	blockTime := parent.Time + p.config.Period
+	if p.chainConfig.IsRamanujan(header.Number) {
+		blockTime = blockTime + backOffTime(snap, p.val)
+	}
+	return blockTime
+}
+
+func (p *Parlia) blockTimeVerifyForRamanujanFork(snap *Snapshot, header, parent *types.Header) error {
+	if p.chainConfig.IsRamanujan(header.Number) {
+		if header.Time < parent.Time+p.config.Period+backOffTime(snap, header.Coinbase) {
+			return consensus.ErrFutureBlock
+		}
+	}
+	return nil
+}

consensus/parlia/snapshot.go

@@ -210,12 +210,22 @@ func (s *Snapshot) validators() []common.Address {
 }
 
 // inturn returns if a validator at a given block height is in-turn or not.
-func (s *Snapshot) inturn(number uint64, validator common.Address) bool {
+func (s *Snapshot) inturn(validator common.Address) bool {
 	validators := s.validators()
-	offset := number % uint64(len(validators))
+	offset := (s.Number + 1) % uint64(len(validators))
 	return validators[offset] == validator
 }
 
+func (s *Snapshot) indexOfVal(validator common.Address) int {
+	validators := s.validators()
+	for idx, val := range validators {
+		if val == validator {
+			return idx
+		}
+	}
+	return -1
+}
+
 func (s *Snapshot) supposeValidator() common.Address {
 	validators := s.validators()
 	index := (s.Number + 1) % uint64(len(validators))

core/chain_makers.go

@@ -24,6 +24,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/consensus/misc"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/systemcontracts"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -207,6 +208,7 @@ func GenerateChain(config *params.ChainConfig, parent *types.Block, engine conse
 		if config.DAOForkSupport && config.DAOForkBlock != nil && config.DAOForkBlock.Cmp(b.header.Number) == 0 {
 			misc.ApplyDAOHardFork(statedb)
 		}
+		systemcontracts.UpgradeBuildInSystemContract(config, b.header.Number, statedb)
 		// Execute any user modifications to the block
 		if gen != nil {
 			gen(i, b)

core/genesis.go

@@ -30,6 +30,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/systemcontracts"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -161,6 +162,7 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, genesis *Genesis, override
 	}
 	// Just commit the new block if there is no stored genesis block.
 	stored := rawdb.ReadCanonicalHash(db, 0)
+	systemcontracts.GenesisHash = stored
 	if (stored == common.Hash{}) {
 		if genesis == nil {
 			log.Info("Writing default main-net genesis block")
@@ -222,7 +224,9 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, genesis *Genesis, override
 	// Special case: don't change the existing config of a non-mainnet chain if no new
 	// config is supplied. These chains would get AllProtocolChanges (and a compat error)
 	// if we just continued here.
-	if genesis == nil && stored != params.MainnetGenesisHash {
+	// The full node of two BSC testnets may run without genesis file after been inited.
+	if genesis == nil && stored != params.MainnetGenesisHash &&
+		stored != params.ChapelGenesisHash && stored != params.RialtoGenesisHash {
 		return storedcfg, stored, nil
 	}
 
@@ -252,6 +256,10 @@ func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
 		return params.RinkebyChainConfig
 	case ghash == params.GoerliGenesisHash:
 		return params.GoerliChainConfig
+	case ghash == params.ChapelGenesisHash:
+		return params.ChapelChainConfig
+	case ghash == params.RialtoGenesisHash:
+		return params.RialtoChainConfig
 	default:
 		return params.AllEthashProtocolChanges
 	}

core/state_processor.go

@@ -21,6 +21,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/consensus/misc"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/systemcontracts"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -65,6 +66,8 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 	if p.config.DAOForkSupport && p.config.DAOForkBlock != nil && p.config.DAOForkBlock.Cmp(block.Number()) == 0 {
 		misc.ApplyDAOHardFork(statedb)
 	}
+	// Handle upgrade build-in system contract code
+	systemcontracts.UpgradeBuildInSystemContract(p.config, block.Number(), statedb)
 	// Iterate over and process the individual transactions
 	posa, isPoSA := p.engine.(consensus.PoSA)
 	commonTxs := make([]*types.Transaction, 0, len(block.Transactions()))

core/systemcontracts/const.go

@@ -0,0 +1,15 @@
+package systemcontracts
+
+const (
+	// genesis contracts
+	ValidatorContract          = "0x0000000000000000000000000000000000001000"
+	SlashContract              = "0x0000000000000000000000000000000000001001"
+	SystemRewardContract       = "0x0000000000000000000000000000000000001002"
+	LightClientContract        = "0x0000000000000000000000000000000000001003"
+	TokenHubContract           = "0x0000000000000000000000000000000000001004"
+	RelayerIncentivizeContract = "0x0000000000000000000000000000000000001005"
+	RelayerHubContract         = "0x0000000000000000000000000000000000001006"
+	GovHubContract             = "0x0000000000000000000000000000000000001007"
+	TokenManagerContract       = "0x0000000000000000000000000000000000001008"
+	CrossChainContract         = "0x0000000000000000000000000000000000002000"
+)

core/vm/contracts_lightclient.go

@@ -9,6 +9,7 @@ import (
 )
 
 const (
+	uint64TypeLength                      uint64 = 8
 	precompileContractInputMetaDataLength uint64 = 32
 	consensusStateLengthBytesLength       uint64 = 32
 
@@ -20,7 +21,7 @@ const (
 // consensus state length | consensus state | tendermint header |
 // 32 bytes               |                 |                   |
 func decodeTendermintHeaderValidationInput(input []byte) (*lightclient.ConsensusState, *lightclient.Header, error) {
-	csLen := binary.BigEndian.Uint64(input[consensusStateLengthBytesLength-8 : consensusStateLengthBytesLength])
+	csLen := binary.BigEndian.Uint64(input[consensusStateLengthBytesLength-uint64TypeLength : consensusStateLengthBytesLength])
 	if uint64(len(input)) <= consensusStateLengthBytesLength+csLen {
 		return nil, nil, fmt.Errorf("expected payload size %d, actual size: %d", consensusStateLengthBytesLength+csLen, len(input))
 	}
@@ -55,7 +56,7 @@ func (c *tmHeaderValidate) Run(input []byte) (result []byte, err error) {
 		return nil, fmt.Errorf("invalid input")
 	}
 
-	payloadLength := binary.BigEndian.Uint64(input[precompileContractInputMetaDataLength-8 : precompileContractInputMetaDataLength])
+	payloadLength := binary.BigEndian.Uint64(input[precompileContractInputMetaDataLength-uint64TypeLength : precompileContractInputMetaDataLength])
 	if uint64(len(input)) != payloadLength+precompileContractInputMetaDataLength {
 		return nil, fmt.Errorf("invalid input: input size should be %d, actual the size is %d", payloadLength+precompileContractInputMetaDataLength, len(input))
 	}
@@ -83,7 +84,7 @@ func (c *tmHeaderValidate) Run(input []byte) (result []byte, err error) {
 		copy(lengthBytes[:1], []byte{0x01})
 	}
 	consensusStateBytesLength := uint64(len(consensusStateBytes))
-	binary.BigEndian.PutUint64(lengthBytes[tmHeaderValidateResultMetaDataLength-8:], consensusStateBytesLength)
+	binary.BigEndian.PutUint64(lengthBytes[tmHeaderValidateResultMetaDataLength-uint64TypeLength:], consensusStateBytesLength)
 
 	result = append(lengthBytes, consensusStateBytes...)
 
@@ -113,7 +114,7 @@ func (c *iavlMerkleProofValidate) Run(input []byte) (result []byte, err error) {
 		return nil, fmt.Errorf("invalid input: input should include %d bytes payload length and payload", precompileContractInputMetaDataLength)
 	}
 
-	payloadLength := binary.BigEndian.Uint64(input[precompileContractInputMetaDataLength-8 : precompileContractInputMetaDataLength])
+	payloadLength := binary.BigEndian.Uint64(input[precompileContractInputMetaDataLength-uint64TypeLength : precompileContractInputMetaDataLength])
 	if uint64(len(input)) != payloadLength+precompileContractInputMetaDataLength {
 		return nil, fmt.Errorf("invalid input: input size should be %d, actual the size is %d", payloadLength+precompileContractInputMetaDataLength, len(input))
 	}
@@ -129,6 +130,6 @@ func (c *iavlMerkleProofValidate) Run(input []byte) (result []byte, err error) {
 	}
 
 	result = make([]byte, merkleProofValidateResultLength)
-	binary.BigEndian.PutUint64(result[merkleProofValidateResultLength-8:], 0x01)
+	binary.BigEndian.PutUint64(result[merkleProofValidateResultLength-uint64TypeLength:], 0x01)
 	return result, nil
 }

core/vm/contracts_lightclient_test.go

@@ -24,6 +24,7 @@ func TestTmHeaderValidateAndMerkleProofValidate(t *testing.T) {
 		"cc05d26c7b0be0c8b46418294171730e079f384fde2fa50bafc000000174876e80049b288e4ebbb3a281c2d546fc30253d5baf08993b6e5d295fb7" +
 		"87a5b314a298e000000174876e80004224339688f012e649de48e241880092eaa8f6aa0f4f14bfcf9e0c76917c0b6000000174876e8004034b37ce" +
 		"da8a0bf13b1abaeee7a8f9383542099a554d219b93d0ce69e3970e8000000174876e800")
+	require.NoError(t, err)
 
 	cs, err := lightclient.DecodeConsensusState(consensusStateBytes)
 	require.NoError(t, err)

core/vm/lightclient/types.go

@@ -226,17 +226,11 @@ func (kvmp *KeyValueMerkleProof) Validate() bool {
 
 	if len(kvmp.Value) == 0 {
 		err := prt.VerifyAbsence(kvmp.Proof, kvmp.AppHash, kp.String())
-		if err != nil {
+		return err == nil
-			return false
-		}
-		return true
 	}
 
 	err := prt.VerifyValue(kvmp.Proof, kvmp.AppHash, kp.String(), kvmp.Value)
-	if err != nil {
+	return err == nil
-		return false
-	}
-	return true
 }
 
 // input:

eth/fetcher/block_fetcher.go

@@ -681,11 +681,12 @@ func (f *BlockFetcher) insert(peer string, block *types.Block) {
 			go f.broadcastBlock(block, true)
 
 		case consensus.ErrFutureBlock:
-			// Weird future block, don't fail, but neither propagate
+			log.Error("Received future block", "peer", peer, "number", block.Number(), "hash", hash, "err", err)
+			f.dropPeer(peer)
 
 		default:
 			// Something went very wrong, drop the peer
-			log.Debug("Propagated block verification failed", "peer", peer, "number", block.Number(), "hash", hash, "err", err)
+			log.Error("Propagated block verification failed", "peer", peer, "number", block.Number(), "hash", hash, "err", err)
 			f.dropPeer(peer)
 			return
 		}

go.mod

@@ -72,17 +72,14 @@ require (
 	github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef
 	github.com/wsddn/go-ecdh v0.0.0-20161211032359-48726bab9208
 	golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550
-	golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3 // indirect
 	golang.org/x/net v0.0.0-20200301022130-244492dfa37a // indirect
 	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
 	golang.org/x/sys v0.0.0-20191026070338-33540a1f6037
 	golang.org/x/text v0.3.2
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
-	golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135 // indirect
 	google.golang.org/grpc v1.27.1 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce
 	gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200316214253-d7b0ff38cac9
 	gopkg.in/urfave/cli.v1 v1.20.0
 	gotest.tools v2.2.0+incompatible // indirect
-	honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc // indirect
 )

go.sum

@@ -28,6 +28,7 @@ github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax
 github.com/aristanetworks/goarista v0.0.0-20170210015632-ea17b1a17847 h1:rtI0fD4oG/8eVokGVPYJEW1F88p1ZNgXiEIs9thEE4A=
 github.com/aristanetworks/goarista v0.0.0-20170210015632-ea17b1a17847/go.mod h1:D/tb0zPVXnP7fmsLZjtdUhSsumbK/ij54UXjjVgMGxQ=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/aws/aws-sdk-go v1.25.48 h1:J82DYDGZHOKHdhx6hD24Tm30c2C3GchYGfN0mf9iKUk=
 github.com/aws/aws-sdk-go v1.25.48/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
@@ -50,6 +51,7 @@ github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18/go.mod h1:HD5P
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cloudflare/cloudflare-go v0.10.2-0.20190916151808-a80f83b9add9 h1:J82+/8rub3qSy0HxEnoYD8cs+HDlHWYrqYXe2Vqxluk=
 github.com/cloudflare/cloudflare-go v0.10.2-0.20190916151808-a80f83b9add9/go.mod h1:1MxXX1Ux4x6mqPmjkUgTP1CdXIBXKX7T+Jk9Gxrmx+U=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
@@ -69,6 +71,7 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/dlclark/regexp2 v1.2.0 h1:8sAhBGEM0dRWogWqWyQeIJnxjWO6oIjl8FKqREDsGfk=
 github.com/dlclark/regexp2 v1.2.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
+github.com/docker/docker v1.4.2-0.20180625184442-8e610b2b55bf h1:sh8rkQZavChcmakYiSlqu2425CHyFXLZZnvm7PDpU8M=
 github.com/docker/docker v1.4.2-0.20180625184442-8e610b2b55bf/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/dop251/goja v0.0.0-20200219165308-d1232e640a87 h1:OMbqMXf9OAXzH1dDH82mQMrddBE8LIIwDtxeK4wE1/A=
 github.com/dop251/goja v0.0.0-20200219165308-d1232e640a87/go.mod h1:Mw6PkjjMXWbTj+nnj4s3QPXq1jaT0s5pC0iFD4+BOAA=
@@ -136,11 +139,13 @@ github.com/influxdata/influxdb v1.2.3-0.20180221223340-01288bdb0883/go.mod h1:qZ
 github.com/jackpal/go-nat-pmp v1.0.2-0.20160603034137-1fa385a6f458 h1:6OvNmYgJyexcZ3pYbTI9jWx5tHo1Dee/tWbLMfPe2TA=
 github.com/jackpal/go-nat-pmp v1.0.2-0.20160603034137-1fa385a6f458/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+4orBN1SBKc=
 github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
+github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af h1:pmfjZENx5imkbgOkpRUYLnmbU7UEFbjtDA2hxJ1ichM=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
 github.com/jmhodges/levigo v1.0.0/go.mod h1:Q6Qx+uH3RAqyK4rFQroq9RL7mdkABMcfhEI+nNuzMJQ=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/julienschmidt/httprouter v1.2.0 h1:TDTW5Yz1mjftljbcKqRcrYhd4XeOoI98t+9HbQbYf7g=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/karalabe/usb v0.0.0-20190919080040-51dc0efba356 h1:I/yrLt2WilKxlQKCM52clh5rGzTKpVctGT1lH4Dc8Jw=
 github.com/karalabe/usb v0.0.0-20190919080040-51dc0efba356/go.mod h1:Od972xHfMJowv7NGVDiWVxk2zxnWgjLlJzE+F4F7AGU=

miner/worker.go

@@ -31,6 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/parlia"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/systemcontracts"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/log"
@@ -900,6 +901,7 @@ func (w *worker) commitNewWork(interrupt *int32, noempty bool, timestamp int64)
 	if w.chainConfig.DAOForkSupport && w.chainConfig.DAOForkBlock != nil && w.chainConfig.DAOForkBlock.Cmp(header.Number) == 0 {
 		misc.ApplyDAOHardFork(env.state)
 	}
+	systemcontracts.UpgradeBuildInSystemContract(w.chainConfig, header.Number, env.state)
 	// Accumulate the uncles for the current block
 	uncles := make([]*types.Header, 0, 2)
 	commitUncles := func(blocks map[common.Hash]*types.Block) {

params/config.go

@@ -31,6 +31,9 @@ var (
 	RopstenGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d")
 	RinkebyGenesisHash = common.HexToHash("0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177")
 	GoerliGenesisHash  = common.HexToHash("0xbf7e331f7f7c1dd2e05159666b3bf8bc7a8a3a9eb1d518969eab529dd9b88c1a")
+
+	ChapelGenesisHash = common.HexToHash("0x6d3c66c5357ec91d5c43af47e234a939b22557cbb552dc45bebbceeed90fbe34")
+	RialtoGenesisHash = common.HexToHash("0xaa1c1e0af675e846942719466ab72822eff51ebf8462ead0897ae1240e3c0da1")
 )
 
 // TrustedCheckpoints associates each known checkpoint with the genesis hash of
@@ -210,21 +213,59 @@ var (
 		Threshold: 2,
 	}
 
+	ChapelChainConfig = &ChainConfig{
+		ChainID:             big.NewInt(97),
+		HomesteadBlock:      big.NewInt(0),
+		EIP150Block:         big.NewInt(0),
+		EIP155Block:         big.NewInt(0),
+		EIP158Block:         big.NewInt(0),
+		ByzantiumBlock:      big.NewInt(0),
+		ConstantinopleBlock: big.NewInt(0),
+		PetersburgBlock:     big.NewInt(0),
+		IstanbulBlock:       big.NewInt(0),
+		MuirGlacierBlock:    big.NewInt(0),
+		RamanujanBlock:      big.NewInt(1010000),
+		NielsBlock:          big.NewInt(1014369),
+		Parlia: &ParliaConfig{
+			Period: 3,
+			Epoch:  200,
+		},
+	}
+
+	RialtoChainConfig = &ChainConfig{
+		ChainID:             big.NewInt(1417),
+		HomesteadBlock:      big.NewInt(0),
+		EIP150Block:         big.NewInt(0),
+		EIP155Block:         big.NewInt(0),
+		EIP158Block:         big.NewInt(0),
+		ByzantiumBlock:      big.NewInt(0),
+		ConstantinopleBlock: big.NewInt(0),
+		PetersburgBlock:     big.NewInt(0),
+		IstanbulBlock:       big.NewInt(0),
+		MuirGlacierBlock:    big.NewInt(0),
+		RamanujanBlock:      big.NewInt(400),
+		NielsBlock:          big.NewInt(0),
+		Parlia: &ParliaConfig{
+			Period: 3,
+			Epoch:  200,
+		},
+	}
+
 	// AllEthashProtocolChanges contains every protocol change (EIPs) introduced
 	// and accepted by the Ethereum core developers into the Ethash consensus.
 	//
 	// This configuration is intentionally not using keyed fields to force anyone
 	// adding flags to the config to also have to set these fields.
-	AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil, nil}
+	AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, new(EthashConfig), nil, nil}
 
 	// AllCliqueProtocolChanges contains every protocol change (EIPs) introduced
 	// and accepted by the Ethereum core developers into the Clique consensus.
 	//
 	// This configuration is intentionally not using keyed fields to force anyone
 	// adding flags to the config to also have to set these fields.
-	AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}, nil}
+	AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}, nil}
 
-	TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil, nil}
+	TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, new(EthashConfig), nil, nil}
 	TestRules       = TestChainConfig.Rules(new(big.Int))
 )
 
@@ -296,6 +337,8 @@ type ChainConfig struct {
 	IstanbulBlock       *big.Int `json:"istanbulBlock,omitempty" toml:",omitempty"`       // Istanbul switch block (nil = no fork, 0 = already on istanbul)
 	MuirGlacierBlock    *big.Int `json:"muirGlacierBlock,omitempty" toml:",omitempty"`    // Eip-2384 (bomb delay) switch block (nil = no fork, 0 = already activated)
 	EWASMBlock          *big.Int `json:"ewasmBlock,omitempty" toml:",omitempty"`          // EWASM switch block (nil = no fork, 0 = already activated)
+	RamanujanBlock      *big.Int `json:"ramanujanBlock,omitempty" toml:",omitempty"`      // ramanujanBlock switch block (nil = no fork, 0 = already activated)
+	NielsBlock          *big.Int `json:"nielsBlock,omitempty" toml:",omitempty"`          // nielsBlock switch block (nil = no fork, 0 = already activated)
 
 	// Various consensus engines
 	Ethash *EthashConfig `json:"ethash,omitempty" toml:",omitempty"`
@@ -346,7 +389,7 @@ func (c *ChainConfig) String() string {
 	default:
 		engine = "unknown"
 	}
-	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, Muir Glacier: %v, Engine: %v}",
+	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, Muir Glacier: %v, Ramanujan: %v, Niels: %v, Engine: %v}",
 		c.ChainID,
 		c.HomesteadBlock,
 		c.DAOForkBlock,
@@ -359,6 +402,8 @@ func (c *ChainConfig) String() string {
 		c.PetersburgBlock,
 		c.IstanbulBlock,
 		c.MuirGlacierBlock,
+		c.RamanujanBlock,
+		c.NielsBlock,
 		engine,
 	)
 }
@@ -398,6 +443,26 @@ func (c *ChainConfig) IsConstantinople(num *big.Int) bool {
 	return isForked(c.ConstantinopleBlock, num)
 }
 
+// IsRamanujan returns whether num is either equal to the IsRamanujan fork block or greater.
+func (c *ChainConfig) IsRamanujan(num *big.Int) bool {
+	return isForked(c.RamanujanBlock, num)
+}
+
+// IsOnRamanujan returns whether num is equal to the Ramanujan fork block
+func (c *ChainConfig) IsOnRamanujan(num *big.Int) bool {
+	return configNumEqual(c.RamanujanBlock, num)
+}
+
+// IsNiels returns whether num is either equal to the Niels fork block or greater.
+func (c *ChainConfig) IsNiels(num *big.Int) bool {
+	return isForked(c.NielsBlock, num)
+}
+
+// IsOnNiels returns whether num is equal to the IsNiels fork block
+func (c *ChainConfig) IsOnNiels(num *big.Int) bool {
+	return configNumEqual(c.NielsBlock, num)
+}
+
 // IsMuirGlacier returns whether num is either equal to the Muir Glacier (EIP-2384) fork block or greater.
 func (c *ChainConfig) IsMuirGlacier(num *big.Int) bool {
 	return isForked(c.MuirGlacierBlock, num)
@@ -456,6 +521,7 @@ func (c *ChainConfig) CheckConfigForkOrder() error {
 		{"petersburgBlock", c.PetersburgBlock},
 		{"istanbulBlock", c.IstanbulBlock},
 		{"muirGlacierBlock", c.MuirGlacierBlock},
+		{"ramanujanBlock", c.RamanujanBlock},
 	} {
 		if lastFork.name != "" {
 			// Next one must be higher number
@@ -515,6 +581,9 @@ func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *Confi
 	if isForkIncompatible(c.EWASMBlock, newcfg.EWASMBlock, head) {
 		return newCompatError("ewasm fork block", c.EWASMBlock, newcfg.EWASMBlock)
 	}
+	if isForkIncompatible(c.RamanujanBlock, newcfg.RamanujanBlock, head) {
+		return newCompatError("ramanujan fork block", c.RamanujanBlock, newcfg.RamanujanBlock)
+	}
 	return nil
 }
 

params/version.go

@@ -23,8 +23,8 @@ import (
 const (
 	VersionMajor = 1        // Major version component of the current release
 	VersionMinor = 0        // Minor version component of the current release
-	VersionPatch = 0        // Patch version component of the current release
+	VersionPatch = 1        // Patch version component of the current release
-	VersionMeta  = "beta.1" // Version metadata to append to the version string
+	VersionMeta  = "beta.2" // Version metadata to append to the version string
 )
 
 // Version holds the textual version string.