BEP-341: Validators can produce consecutive blocks (#2482)

This commit is contained in:
Nathan 2024-07-23 13:55:45 +08:00 committed by GitHub
parent 6260a26971
commit 17e0e45a09
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
23 changed files with 558 additions and 93 deletions

@ -43,7 +43,42 @@ func TestExtraParse(t *testing.T) {
}
}
// case 3, |---Extra Vanity---|---Empty---|---Vote Attestation---|---Extra Seal---|
// case 3, |---Extra Vanity---|---Validators Number and Validators Bytes---|---Turn Length---|---Empty---|---Extra Seal---|
{
extraData := "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"
extra, err := parseExtra(extraData)
assert.NoError(t, err)
{
var have = extra.ValidatorSize
var want = uint8(21)
if have != want {
t.Fatalf("extra.ValidatorSize mismatch, have %d, want %d", have, want)
}
}
{
var have = common.Bytes2Hex(extra.Validators[14].Address[:])
var want = "cc8e6d00c17eb431350c6c50d8b8f05176b90b11"
if have != want {
t.Fatalf("extra.Validators[14].Address mismatch, have %s, want %s", have, want)
}
}
{
var have = common.Bytes2Hex(extra.Validators[18].BLSPublicKey[:])
var want = "b2d4c6283c44a1c7bd503aaba7666e9f0c830e0ff016c1c750a5e48757a713d0836b1cabfd5c281b1de3b77d1c192183"
if have != want {
t.Fatalf("extra.Validators[18].BLSPublicKey mismatch, have %s, want %s", have, want)
}
}
{
var have = extra.TurnLength
var want = uint8(4)
if *have != want {
t.Fatalf("extra.TurnLength mismatch, have %d, want %d", *have, want)
}
}
}
// case 4, |---Extra Vanity---|---Empty---|---Vote Attestation---|---Extra Seal---|
{
extraData := "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"
extra, err := parseExtra(extraData)
@ -64,9 +99,9 @@ func TestExtraParse(t *testing.T) {
}
}
// case 4, |---Extra Vanity---|---Validators Number and Validators Bytes---|---Vote Attestation---|---Extra Seal---|
// case 5, |---Extra Vanity---|---Validators Number and Validators Bytes---|---Vote Attestation---|---Extra Seal---|
{
extraData := "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"
extraData := "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"
extra, err := parseExtra(extraData)
assert.NoError(t, err)
{
@ -105,4 +140,53 @@ func TestExtraParse(t *testing.T) {
}
}
}
// case 6, |---Extra Vanity---|---Validators Number and Validators Bytes---|---Turn Length---|---Vote Attestation---|---Extra Seal---|
{
extraData := "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"
extra, err := parseExtra(extraData)
assert.NoError(t, err)
{
var have = common.Bytes2Hex(extra.Validators[0].Address[:])
var want = "1284214b9b9c85549ab3d2b972df0deef66ac2c9"
if have != want {
t.Fatalf("extra.Validators[0].Address mismatch, have %s, want %s", have, want)
}
}
{
var have = common.Bytes2Hex(extra.Validators[0].BLSPublicKey[:])
var want = "8e82934ca974fdcd97f3309de967d3c9c43fa711a8d673af5d75465844bf8969c8d1948d903748ac7b8b1720fa64e50c"
if have != want {
t.Fatalf("extra.Validators[0].BLSPublicKey mismatch, have %s, want %s", have, want)
}
}
{
var have = extra.Validators[0].VoteIncluded
var want = true
if have != want {
t.Fatalf("extra.Validators[0].VoteIncluded mismatch, have %t, want %t", have, want)
}
}
{
var have = common.Bytes2Hex(extra.Data.TargetHash[:])
var want = "0edc71ce80105a3220a87bea2792fa340d66c59002f02b0a09349ed1ed284070"
if have != want {
t.Fatalf("extra.Data.TargetHash mismatch, have %s, want %s", have, want)
}
}
{
var have = extra.Data.TargetNumber
var want = uint64(32096999)
if have != want {
t.Fatalf("extra.Data.TargetNumber mismatch, have %d, want %d", have, want)
}
}
{
var have = extra.TurnLength
var want = uint8(4)
if *have != want {
t.Fatalf("extra.TurnLength mismatch, have %d, want %d", *have, want)
}
}
}
}

@ -24,7 +24,7 @@ const (
BLSPublicKeyLength = 48
// follow order in extra field
// |---Extra Vanity---|---Validators Number and Validators Bytes (or Empty)---|---Vote Attestation (or Empty)---|---Extra Seal---|
// |---Extra Vanity---|---Validators Number and Validators Bytes (or Empty)---|---Turn Length (or Empty)---|---Vote Attestation (or Empty)---|---Extra Seal---|
extraVanityLength = 32 // Fixed number of extra-data prefix bytes reserved for signer vanity
validatorNumberSize = 1 // Fixed number of extra prefix bytes reserved for validator number after Luban
validatorBytesLength = common.AddressLength + types.BLSPublicKeyLength
@ -35,6 +35,7 @@ type Extra struct {
ExtraVanity string
ValidatorSize uint8
Validators validatorsAscending
TurnLength *uint8
*types.VoteAttestation
ExtraSeal []byte
}
@ -113,6 +114,15 @@ func parseExtra(hexData string) (*Extra, error) {
sort.Sort(extra.Validators)
data = data[validatorBytesTotalLength-validatorNumberSize:]
dataLength = len(data)
// parse TurnLength
if dataLength > 0 {
if data[0] != '\xf8' {
extra.TurnLength = &data[0]
data = data[1:]
dataLength = len(data)
}
}
}
// parse Vote Attestation
@ -148,6 +158,10 @@ func prettyExtra(extra Extra) {
}
}
if extra.TurnLength != nil {
fmt.Printf("TurnLength : %d\n", *extra.TurnLength)
}
if extra.VoteAttestation != nil {
fmt.Printf("Attestation :\n")
fmt.Printf("\tVoteAddressSet : %b, %d\n", extra.VoteAddressSet, bitset.From([]uint64{uint64(extra.VoteAddressSet)}).Count())

@ -206,6 +206,9 @@ func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
if ctx.IsSet(utils.OverrideBreatheBlockInterval.Name) {
params.BreatheBlockInterval = ctx.Uint64(utils.OverrideBreatheBlockInterval.Name)
}
if ctx.IsSet(utils.OverrideFixedTurnLength.Name) {
params.FixedTurnLength = ctx.Uint64(utils.OverrideFixedTurnLength.Name)
}
backend, eth := utils.RegisterEthService(stack, &cfg.Eth)

@ -78,6 +78,7 @@ var (
utils.OverrideMinBlocksForBlobRequests,
utils.OverrideDefaultExtraReserveForBlobRequests,
utils.OverrideBreatheBlockInterval,
utils.OverrideFixedTurnLength,
utils.EnablePersonal,
utils.TxPoolLocalsFlag,
utils.TxPoolNoLocalsFlag,

@ -13,6 +13,8 @@ const main = async () => {
let gasUsedTotal = 0;
let inturnBlocks = 0;
let justifiedBlocks = 0;
let turnLength = await provider.send("parlia_getTurnLength", [
ethers.toQuantity(program.startNum)]);
for (let i = program.startNum; i < program.endNum; i++) {
let txCount = await provider.send("eth_getBlockTransactionCountByNumber", [
ethers.toQuantity(i)]);
@ -35,7 +37,7 @@ const main = async () => {
} else {
console.log("justified unexpected", "BlockNumber =", i,"justifiedNumber",justifiedNumber)
}
console.log("BlockNumber =", i, "mod =", i%4, "miner =", header.miner , "difficulty =", difficulty, "txCount =", ethers.toNumber(txCount), "gasUsed", gasUsed, "timestamp", timestamp)
console.log("BlockNumber =", i, "mod =", i%turnLength, "miner =", header.miner , "difficulty =", difficulty, "txCount =", ethers.toNumber(txCount), "gasUsed", gasUsed, "timestamp", timestamp)
}
let blockCount = program.endNum - program.startNum

@ -339,6 +339,12 @@ var (
Value: params.BreatheBlockInterval,
Category: flags.EthCategory,
}
OverrideFixedTurnLength = &cli.Uint64Flag{
Name: "override.fixedturnlength",
Usage: "It use fixed or random values for turn length instead of reading from the contract, only for testing purpose",
Value: params.FixedTurnLength,
Category: flags.EthCategory,
}
SyncModeFlag = &flags.TextMarshalerFlag{
Name: "syncmode",
Usage: `Blockchain sync mode ("snap" or "full")`,

@ -2306,6 +2306,19 @@ const validatorSetABI = `
],
"stateMutability": "view"
},
{
"inputs": [],
"name": "getTurnLength",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"type": "function",
"name": "getValidators",

@ -88,6 +88,19 @@ func (api *API) GetJustifiedNumber(number *rpc.BlockNumber) (uint64, error) {
return snap.Attestation.TargetNumber, nil
}
func (api *API) GetTurnLength(number *rpc.BlockNumber) (uint8, error) {
header := api.getHeader(number)
// Ensure we have an actually valid block and return the validators from its snapshot
if header == nil {
return 0, errUnknownBlock
}
snap, err := api.parlia.snapshot(api.chain, header.Number.Uint64(), header.Hash(), nil)
if err != nil || snap.TurnLength == 0 {
return 0, err
}
return snap.TurnLength, nil
}
func (api *API) GetFinalizedNumber(number *rpc.BlockNumber) (uint64, error) {
header := api.getHeader(number)
// Ensure we have an actually valid block and return the validators from its snapshot

@ -0,0 +1,91 @@
package parlia
import (
"context"
"errors"
"math/big"
mrand "math/rand"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core/systemcontracts"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
func (p *Parlia) getTurnLength(chain consensus.ChainHeaderReader, header *types.Header) (*uint8, error) {
parent := chain.GetHeaderByHash(header.ParentHash)
if parent == nil {
return nil, errors.New("parent not found")
}
var turnLength uint8
if p.chainConfig.IsBohr(parent.Number, parent.Time) {
turnLengthFromContract, err := p.getTurnLengthFromContract(parent)
if err != nil {
return nil, err
}
if turnLengthFromContract == nil {
return nil, errors.New("unexpected error when getTurnLengthFromContract")
}
turnLength = uint8(turnLengthFromContract.Int64())
} else {
turnLength = defaultTurnLength
}
log.Debug("getTurnLength", "turnLength", turnLength)
return &turnLength, nil
}
func (p *Parlia) getTurnLengthFromContract(header *types.Header) (turnLength *big.Int, err error) {
// mock to get turnLength from the contract
if params.FixedTurnLength >= 1 && params.FixedTurnLength <= 9 {
if params.FixedTurnLength == 2 {
return p.getRandTurnLength(header)
}
return big.NewInt(int64(params.FixedTurnLength)), nil
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
method := "getTurnLength"
toAddress := common.HexToAddress(systemcontracts.ValidatorContract)
gas := (hexutil.Uint64)(uint64(math.MaxUint64 / 2))
data, err := p.validatorSetABI.Pack(method)
if err != nil {
log.Error("Unable to pack tx for getTurnLength", "error", err)
return nil, err
}
msgData := (hexutil.Bytes)(data)
blockNr := rpc.BlockNumberOrHashWithHash(header.Hash(), false)
result, err := p.ethAPI.Call(ctx, ethapi.TransactionArgs{
Gas: &gas,
To: &toAddress,
Data: &msgData,
}, &blockNr, nil, nil)
if err != nil {
return nil, err
}
if err := p.validatorSetABI.UnpackIntoInterface(&turnLength, method, result); err != nil {
return nil, err
}
return turnLength, nil
}
// getRandTurnLength returns a random valid value, used to test switching turn length
func (p *Parlia) getRandTurnLength(header *types.Header) (turnLength *big.Int, err error) {
turnLengths := [8]uint8{1, 3, 4, 5, 6, 7, 8, 9}
r := mrand.New(mrand.NewSource(int64(header.Time)))
lengthIndex := int(r.Int31n(int32(len(turnLengths))))
return big.NewInt(int64(turnLengths[lengthIndex])), nil
}

@ -55,10 +55,12 @@ const (
checkpointInterval = 1024 // Number of blocks after which to save the snapshot to the database
defaultEpochLength = uint64(100) // Default number of blocks of checkpoint to update validatorSet from contract
defaultTurnLength = uint8(1) // Default consecutive number of blocks a validator receives priority for block production
extraVanity = 32 // Fixed number of extra-data prefix bytes reserved for signer vanity
extraSeal = 65 // Fixed number of extra-data suffix bytes reserved for signer seal
nextForkHashSize = 4 // Fixed number of extra-data suffix bytes reserved for nextForkHash.
turnLengthSize = 1 // Fixed number of extra-data suffix bytes reserved for turnLength
validatorBytesLengthBeforeLuban = common.AddressLength
validatorBytesLength = common.AddressLength + types.BLSPublicKeyLength
@ -127,6 +129,10 @@ var (
// invalid list of validators (i.e. non divisible by 20 bytes).
errInvalidSpanValidators = errors.New("invalid validator list on sprint end block")
// errInvalidTurnLength is returned if a block contains an
// invalid length of turn (i.e. no data left after parsing validators).
errInvalidTurnLength = errors.New("invalid turnLength")
// errInvalidMixDigest is returned if a block's mix digest is non-zero.
errInvalidMixDigest = errors.New("non-zero mix digest")
@ -137,6 +143,10 @@ var (
// list of validators different than the one the local node calculated.
errMismatchingEpochValidators = errors.New("mismatching validator list on epoch block")
// errMismatchingEpochTurnLength is returned if a sprint block contains a
// turn length different than the one the local node calculated.
errMismatchingEpochTurnLength = errors.New("mismatching turn length on epoch block")
// errInvalidDifficulty is returned if the difficulty of a block is missing.
errInvalidDifficulty = errors.New("invalid difficulty")
@ -370,6 +380,7 @@ func (p *Parlia) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*typ
// On luban fork, we introduce vote attestation into the header's extra field, so extra format is different from before.
// Before luban fork: |---Extra Vanity---|---Validators Bytes (or Empty)---|---Extra Seal---|
// After luban fork: |---Extra Vanity---|---Validators Number and Validators Bytes (or Empty)---|---Vote Attestation (or Empty)---|---Extra Seal---|
// After bohr fork: |---Extra Vanity---|---Validators Number and Validators Bytes (or Empty)---|---Turn Length (or Empty)---|---Vote Attestation (or Empty)---|---Extra Seal---|
func getValidatorBytesFromHeader(header *types.Header, chainConfig *params.ChainConfig, parliaConfig *params.ParliaConfig) []byte {
if len(header.Extra) <= extraVanity+extraSeal {
return nil
@ -386,11 +397,15 @@ func getValidatorBytesFromHeader(header *types.Header, chainConfig *params.Chain
return nil
}
num := int(header.Extra[extraVanity])
if num == 0 || len(header.Extra) <= extraVanity+extraSeal+num*validatorBytesLength {
return nil
}
start := extraVanity + validatorNumberSize
end := start + num*validatorBytesLength
extraMinLen := end + extraSeal
if chainConfig.IsBohr(header.Number, header.Time) {
extraMinLen += turnLengthSize
}
if num == 0 || len(header.Extra) < extraMinLen {
return nil
}
return header.Extra[start:end]
}
@ -409,11 +424,14 @@ func getVoteAttestationFromHeader(header *types.Header, chainConfig *params.Chai
attestationBytes = header.Extra[extraVanity : len(header.Extra)-extraSeal]
} else {
num := int(header.Extra[extraVanity])
if len(header.Extra) <= extraVanity+extraSeal+validatorNumberSize+num*validatorBytesLength {
start := extraVanity + validatorNumberSize + num*validatorBytesLength
if chainConfig.IsBohr(header.Number, header.Time) {
start += turnLengthSize
}
end := len(header.Extra) - extraSeal
if end <= start {
return nil, nil
}
start := extraVanity + validatorNumberSize + num*validatorBytesLength
end := len(header.Extra) - extraSeal
attestationBytes = header.Extra[start:end]
}
@ -896,6 +914,24 @@ func (p *Parlia) prepareValidators(header *types.Header) error {
return nil
}
func (p *Parlia) prepareTurnLength(chain consensus.ChainHeaderReader, header *types.Header) error {
if header.Number.Uint64()%p.config.Epoch != 0 ||
!p.chainConfig.IsBohr(header.Number, header.Time) {
return nil
}
turnLength, err := p.getTurnLength(chain, header)
if err != nil {
return err
}
if turnLength != nil {
header.Extra = append(header.Extra, *turnLength)
}
return nil
}
func (p *Parlia) assembleVoteAttestation(chain consensus.ChainHeaderReader, header *types.Header) error {
if !p.chainConfig.IsLuban(header.Number) || header.Number.Uint64() < 2 {
return nil
@ -1027,6 +1063,9 @@ func (p *Parlia) Prepare(chain consensus.ChainHeaderReader, header *types.Header
return err
}
if err := p.prepareTurnLength(chain, header); err != nil {
return err
}
// add extra seal space
header.Extra = append(header.Extra, make([]byte, extraSeal)...)
@ -1077,6 +1116,30 @@ func (p *Parlia) verifyValidators(header *types.Header) error {
return nil
}
func (p *Parlia) verifyTurnLength(chain consensus.ChainHeaderReader, header *types.Header) error {
if header.Number.Uint64()%p.config.Epoch != 0 ||
!p.chainConfig.IsBohr(header.Number, header.Time) {
return nil
}
turnLengthFromHeader, err := parseTurnLength(header, p.chainConfig, p.config)
if err != nil {
return err
}
if turnLengthFromHeader != nil {
turnLength, err := p.getTurnLength(chain, header)
if err != nil {
return err
}
if turnLength != nil && *turnLength == *turnLengthFromHeader {
log.Debug("verifyTurnLength", "turnLength", *turnLength)
return nil
}
}
return errMismatchingEpochTurnLength
}
func (p *Parlia) distributeFinalityReward(chain consensus.ChainHeaderReader, state *state.StateDB, header *types.Header,
cx core.ChainContext, txs *[]*types.Transaction, receipts *[]*types.Receipt, systemTxs *[]*types.Transaction,
usedGas *uint64, mining bool) error {
@ -1171,6 +1234,10 @@ func (p *Parlia) Finalize(chain consensus.ChainHeaderReader, header *types.Heade
return err
}
if err := p.verifyTurnLength(chain, header); err != nil {
return err
}
cx := chainContext{Chain: chain, parlia: p}
parent := chain.GetHeaderByHash(header.ParentHash)
@ -1197,7 +1264,7 @@ func (p *Parlia) Finalize(chain consensus.ChainHeaderReader, header *types.Heade
}
}
if header.Difficulty.Cmp(diffInTurn) != 0 {
spoiledVal := snap.supposeValidator()
spoiledVal := snap.inturnValidator()
signedRecently := false
if p.chainConfig.IsPlato(header.Number) {
signedRecently = snap.SignRecently(spoiledVal)
@ -1288,7 +1355,7 @@ func (p *Parlia) FinalizeAndAssemble(chain consensus.ChainHeaderReader, header *
if err != nil {
return nil, nil, err
}
spoiledVal := snap.supposeValidator()
spoiledVal := snap.inturnValidator()
signedRecently := false
if p.chainConfig.IsPlato(header.Number) {
signedRecently = snap.SignRecently(spoiledVal)
@ -1441,10 +1508,19 @@ func (p *Parlia) Delay(chain consensus.ChainReader, header *types.Header, leftOv
delay = delay - *leftOver
}
// The blocking time should be no more than half of period
half := time.Duration(p.config.Period) * time.Second / 2
if delay > half {
delay = half
// The blocking time should be no more than half of period when snap.TurnLength == 1
timeForMining := time.Duration(p.config.Period) * time.Second / 2
if snap.TurnLength > 1 {
if snap.lastBlockInOneTurn(header.Number.Uint64()) {
// To ensure that the next validator produces and broadcasts blocks in a timely manner,
// set the value of timeForMining to a small amount
timeForMining = 500 * time.Millisecond
} else {
timeForMining = time.Duration(p.config.Period) * time.Second * 2 / 3
}
}
if delay > timeForMining {
delay = timeForMining
}
return &delay
}
@ -1936,31 +2012,24 @@ func (p *Parlia) GetFinalizedHeader(chain consensus.ChainHeaderReader, header *t
// =========================== utility function ==========================
func (p *Parlia) backOffTime(snap *Snapshot, header *types.Header, val common.Address) uint64 {
if snap.inturn(val) {
log.Debug("backOffTime", "blockNumber", header.Number, "in turn validator", val)
return 0
} else {
delay := initialBackOffTime
validators := snap.validators()
if p.chainConfig.IsPlanck(header.Number) {
// reverse the key/value of snap.Recents to get recentsMap
recentsMap := make(map[common.Address]uint64, len(snap.Recents))
bound := uint64(0)
if n, limit := header.Number.Uint64(), uint64(len(validators)/2+1); n > limit {
bound = n - limit
}
for seen, recent := range snap.Recents {
if seen <= bound {
continue
}
recentsMap[recent] = seen
counts := snap.countRecents()
for addr, seenTimes := range counts {
log.Debug("backOffTime", "blockNumber", header.Number, "validator", addr, "seenTimes", seenTimes)
}
// The backOffTime does not matter when a validator has signed recently.
if _, ok := recentsMap[val]; ok {
if snap.signRecentlyByCounts(val, counts) {
return 0
}
inTurnAddr := validators[(snap.Number+1)%uint64(len(validators))]
if _, ok := recentsMap[inTurnAddr]; ok {
inTurnAddr := snap.inturnValidator()
if snap.signRecentlyByCounts(inTurnAddr, counts) {
log.Debug("in turn validator has recently signed, skip initialBackOffTime",
"inTurnAddr", inTurnAddr)
delay = 0
@ -1969,7 +2038,7 @@ func (p *Parlia) backOffTime(snap *Snapshot, header *types.Header, val common.Ad
// Exclude the recently signed validators
temp := make([]common.Address, 0, len(validators))
for _, addr := range validators {
if _, ok := recentsMap[addr]; ok {
if snap.signRecentlyByCounts(addr, counts) {
continue
}
temp = append(temp, addr)
@ -1989,7 +2058,11 @@ func (p *Parlia) backOffTime(snap *Snapshot, header *types.Header, val common.Ad
return 0
}
s := rand.NewSource(int64(snap.Number))
randSeed := snap.Number
if p.chainConfig.IsBohr(header.Number, header.Time) {
randSeed = header.Number.Uint64() / uint64(snap.TurnLength)
}
s := rand.NewSource(int64(randSeed))
r := rand.New(s)
n := len(validators)
backOffSteps := make([]uint64, 0, n)

@ -22,22 +22,44 @@ func TestImpactOfValidatorOutOfService(t *testing.T) {
testCases := []struct {
totalValidators int
downValidators int
turnLength int
}{
{3, 1},
{5, 2},
{10, 1},
{10, 4},
{21, 1},
{21, 3},
{21, 5},
{21, 10},
{3, 1, 1},
{5, 2, 1},
{10, 1, 2},
{10, 4, 2},
{21, 1, 3},
{21, 3, 3},
{21, 5, 4},
{21, 10, 5},
}
for _, tc := range testCases {
simulateValidatorOutOfService(tc.totalValidators, tc.downValidators)
simulateValidatorOutOfService(tc.totalValidators, tc.downValidators, tc.turnLength)
}
}
func simulateValidatorOutOfService(totalValidators int, downValidators int) {
// refer Snapshot.SignRecently
func signRecently(idx int, recents map[uint64]int, turnLength int) bool {
recentSignTimes := 0
for _, signIdx := range recents {
if signIdx == idx {
recentSignTimes += 1
}
}
return recentSignTimes >= turnLength
}
// refer Snapshot.minerHistoryCheckLen
func minerHistoryCheckLen(totalValidators int, turnLength int) uint64 {
return uint64(totalValidators/2+1)*uint64(turnLength) - 1
}
// refer Snapshot.inturnValidator
func inturnValidator(totalValidators int, turnLength int, height int) int {
return height / turnLength % totalValidators
}
func simulateValidatorOutOfService(totalValidators int, downValidators int, turnLength int) {
downBlocks := 10000
recoverBlocks := 10000
recents := make(map[uint64]int)
@ -55,12 +77,7 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
delete(validators, down[i])
}
isRecentSign := func(idx int) bool {
for _, signIdx := range recents {
if signIdx == idx {
return true
}
}
return false
return signRecently(idx, recents, turnLength)
}
isInService := func(idx int) bool {
return validators[idx]
@ -68,10 +85,10 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
downDelay := uint64(0)
for h := 1; h <= downBlocks; h++ {
if limit := uint64(totalValidators/2 + 1); uint64(h) >= limit {
if limit := minerHistoryCheckLen(totalValidators, turnLength) + 1; uint64(h) >= limit {
delete(recents, uint64(h)-limit)
}
proposer := h % totalValidators
proposer := inturnValidator(totalValidators, turnLength, h)
if !isInService(proposer) || isRecentSign(proposer) {
candidates := make(map[int]bool, totalValidators/2)
for v := range validators {
@ -99,10 +116,10 @@ func simulateValidatorOutOfService(totalValidators int, downValidators int) {
recoverDelay := uint64(0)
lastseen := downBlocks
for h := downBlocks + 1; h <= downBlocks+recoverBlocks; h++ {
if limit := uint64(totalValidators/2 + 1); uint64(h) >= limit {
if limit := minerHistoryCheckLen(totalValidators, turnLength) + 1; uint64(h) >= limit {
delete(recents, uint64(h)-limit)
}
proposer := h % totalValidators
proposer := inturnValidator(totalValidators, turnLength, h)
if !isInService(proposer) || isRecentSign(proposer) {
lastseen = h
candidates := make(map[int]bool, totalValidators/2)

@ -44,6 +44,7 @@ type Snapshot struct {
Number uint64 `json:"number"` // Block number where the snapshot was created
Hash common.Hash `json:"hash"` // Block hash where the snapshot was created
TurnLength uint8 `json:"turn_length"` // Length of `turn`, meaning the consecutive number of blocks a validator receives priority for block production
Validators map[common.Address]*ValidatorInfo `json:"validators"` // Set of authorized validators at this moment
Recents map[uint64]common.Address `json:"recents"` // Set of recent validators for spam protections
RecentForkHashes map[uint64]string `json:"recent_fork_hashes"` // Set of recent forkHash
@ -73,6 +74,7 @@ func newSnapshot(
sigCache: sigCache,
Number: number,
Hash: hash,
TurnLength: defaultTurnLength,
Recents: make(map[uint64]common.Address),
RecentForkHashes: make(map[uint64]string),
Validators: make(map[common.Address]*ValidatorInfo),
@ -115,6 +117,10 @@ func loadSnapshot(config *params.ParliaConfig, sigCache *lru.ARCCache, db ethdb.
if err := json.Unmarshal(blob, snap); err != nil {
return nil, err
}
if snap.TurnLength == 0 { // no TurnLength field in old snapshots
snap.TurnLength = defaultTurnLength
}
snap.config = config
snap.sigCache = sigCache
snap.ethAPI = ethAPI
@ -139,6 +145,7 @@ func (s *Snapshot) copy() *Snapshot {
sigCache: s.sigCache,
Number: s.Number,
Hash: s.Hash,
TurnLength: s.TurnLength,
Validators: make(map[common.Address]*ValidatorInfo),
Recents: make(map[uint64]common.Address),
RecentForkHashes: make(map[uint64]string),
@ -211,17 +218,45 @@ func (s *Snapshot) updateAttestation(header *types.Header, chainConfig *params.C
}
}
func (s *Snapshot) SignRecently(validator common.Address) bool {
func (s *Snapshot) versionHistoryCheckLen() uint64 {
return uint64(len(s.Validators)) * uint64(s.TurnLength)
}
func (s *Snapshot) minerHistoryCheckLen() uint64 {
return (uint64(len(s.Validators))/2+1)*uint64(s.TurnLength) - 1
}
func (s *Snapshot) countRecents() map[common.Address]uint8 {
leftHistoryBound := uint64(0) // the bound is excluded
checkHistoryLength := s.minerHistoryCheckLen()
if s.Number > checkHistoryLength {
leftHistoryBound = s.Number - checkHistoryLength
}
counts := make(map[common.Address]uint8, len(s.Validators))
for seen, recent := range s.Recents {
if recent == validator {
if limit := uint64(len(s.Validators)/2 + 1); s.Number+1 < limit || seen > s.Number+1-limit {
if seen <= leftHistoryBound || recent == (common.Address{}) /*when seen == `epochKey`*/ {
continue
}
counts[recent] += 1
}
return counts
}
func (s *Snapshot) signRecentlyByCounts(validator common.Address, counts map[common.Address]uint8) bool {
if seenTimes, ok := counts[validator]; ok && seenTimes >= s.TurnLength {
if seenTimes > s.TurnLength {
log.Warn("produce more blocks than expected!", "validator", validator, "seenTimes", seenTimes)
}
return true
}
}
}
return false
}
func (s *Snapshot) SignRecently(validator common.Address) bool {
return s.signRecentlyByCounts(validator, s.countRecents())
}
func (s *Snapshot) apply(headers []*types.Header, chain consensus.ChainHeaderReader, parents []*types.Header, chainConfig *params.ChainConfig) (*Snapshot, error) {
// Allow passing in no headers for cleaner code
if len(headers) == 0 {
@ -248,10 +283,10 @@ func (s *Snapshot) apply(headers []*types.Header, chain consensus.ChainHeaderRea
for _, header := range headers {
number := header.Number.Uint64()
// Delete the oldest validator from the recent list to allow it signing again
if limit := uint64(len(snap.Validators)/2 + 1); number >= limit {
if limit := snap.minerHistoryCheckLen() + 1; number >= limit {
delete(snap.Recents, number-limit)
}
if limit := uint64(len(snap.Validators)); number >= limit {
if limit := snap.versionHistoryCheckLen(); number >= limit {
delete(snap.RecentForkHashes, number-limit)
}
// Resolve the authorization key and check against signers
@ -262,16 +297,22 @@ func (s *Snapshot) apply(headers []*types.Header, chain consensus.ChainHeaderRea
if _, ok := snap.Validators[validator]; !ok {
return nil, errUnauthorizedValidator(validator.String())
}
if chainConfig.IsBohr(header.Number, header.Time) {
if snap.SignRecently(validator) {
return nil, errRecentlySigned
}
} else {
for _, recent := range snap.Recents {
if recent == validator {
return nil, errRecentlySigned
}
}
}
snap.Recents[number] = validator
snap.RecentForkHashes[number] = hex.EncodeToString(header.Extra[extraVanity-nextForkHashSize : extraVanity])
snap.updateAttestation(header, chainConfig, s.config)
// change validator set
if number > 0 && number%s.config.Epoch == uint64(len(snap.Validators)/2) {
if number > 0 && number%s.config.Epoch == snap.minerHistoryCheckLen() {
epochKey := math.MaxUint64 - header.Number.Uint64()/s.config.Epoch // impossible used as a block number
if chainConfig.IsBohr(header.Number, header.Time) {
// after switching the validator set, snap.Validators may become larger,
@ -281,11 +322,22 @@ func (s *Snapshot) apply(headers []*types.Header, chain consensus.ChainHeaderRea
}
}
checkpointHeader := FindAncientHeader(header, uint64(len(snap.Validators)/2), chain, parents)
checkpointHeader := FindAncientHeader(header, snap.minerHistoryCheckLen(), chain, parents)
if checkpointHeader == nil {
return nil, consensus.ErrUnknownAncestor
}
oldVersionsLen := snap.versionHistoryCheckLen()
// get turnLength from headers and use that for new turnLength
turnLength, err := parseTurnLength(checkpointHeader, chainConfig, s.config)
if err != nil {
return nil, err
}
if turnLength != nil {
snap.TurnLength = *turnLength
log.Debug("validator set switch", "turnLength", *turnLength)
}
// get validators from headers and use that for new validator set
newValArr, voteAddrs, err := parseValidators(checkpointHeader, chainConfig, s.config)
if err != nil {
@ -315,13 +367,6 @@ func (s *Snapshot) apply(headers []*types.Header, chain consensus.ChainHeaderRea
}
}
}
oldLimit := len(snap.Validators)
newLimit := len(newVals)
if newLimit < oldLimit {
for i := 0; i < oldLimit-newLimit; i++ {
delete(snap.RecentForkHashes, number-uint64(newLimit)-uint64(i))
}
}
snap.Validators = newVals
if chainConfig.IsLuban(header.Number) {
validators := snap.validators()
@ -329,6 +374,9 @@ func (s *Snapshot) apply(headers []*types.Header, chain consensus.ChainHeaderRea
snap.Validators[val].Index = idx + 1 // offset by 1
}
}
for i := snap.versionHistoryCheckLen(); i < oldVersionsLen; i++ {
delete(snap.RecentForkHashes, number-i)
}
}
}
snap.Number += uint64(len(headers))
@ -346,17 +394,20 @@ func (s *Snapshot) validators() []common.Address {
return validators
}
// inturn returns if a validator at a given block height is in-turn or not.
func (s *Snapshot) inturn(validator common.Address) bool {
validators := s.validators()
offset := (s.Number + 1) % uint64(len(validators))
return validators[offset] == validator
// lastBlockInOneTurn returns if the block at height `blockNumber` is the last block in current turn.
func (s *Snapshot) lastBlockInOneTurn(blockNumber uint64) bool {
return (blockNumber+1)%uint64(s.TurnLength) == 0
}
// inturnValidator returns the validator at a given block height.
// inturn returns if a validator at a given block height is in-turn or not.
func (s *Snapshot) inturn(validator common.Address) bool {
return s.inturnValidator() == validator
}
// inturnValidator returns the validator for the following block height.
func (s *Snapshot) inturnValidator() common.Address {
validators := s.validators()
offset := (s.Number + 1) % uint64(len(validators))
offset := (s.Number + 1) / uint64(s.TurnLength) % uint64(len(validators))
return validators[offset]
}
@ -394,12 +445,6 @@ func (s *Snapshot) indexOfVal(validator common.Address) int {
return -1
}
func (s *Snapshot) supposeValidator() common.Address {
validators := s.validators()
index := (s.Number + 1) % uint64(len(validators))
return validators[index]
}
func parseValidators(header *types.Header, chainConfig *params.ChainConfig, parliaConfig *params.ParliaConfig) ([]common.Address, []types.BLSPublicKey, error) {
validatorsBytes := getValidatorBytesFromHeader(header, chainConfig, parliaConfig)
if len(validatorsBytes) == 0 {
@ -425,6 +470,24 @@ func parseValidators(header *types.Header, chainConfig *params.ChainConfig, parl
return cnsAddrs, voteAddrs, nil
}
func parseTurnLength(header *types.Header, chainConfig *params.ChainConfig, parliaConfig *params.ParliaConfig) (*uint8, error) {
if header.Number.Uint64()%parliaConfig.Epoch != 0 ||
!chainConfig.IsBohr(header.Number, header.Time) {
return nil, nil
}
if len(header.Extra) <= extraVanity+extraSeal {
return nil, errInvalidSpanValidators
}
num := int(header.Extra[extraVanity])
pos := extraVanity + validatorNumberSize + num*validatorBytesLength
if len(header.Extra) <= pos {
return nil, errInvalidTurnLength
}
turnLength := header.Extra[pos]
return &turnLength, nil
}
func FindAncientHeader(header *types.Header, ite uint64, chain consensus.ChainHeaderReader, candidateParents []*types.Header) *types.Header {
ancient := header
for i := uint64(1); i <= ite; i++ {

@ -0,0 +1,15 @@
package bohr
import _ "embed"
// contract codes for Mainnet upgrade
var (
//go:embed mainnet/ValidatorContract
MainnetValidatorContract string
)
// contract codes for Chapel upgrade
var (
//go:embed chapel/ValidatorContract
ChapelValidatorContract string
)

@ -78,6 +78,8 @@ var (
feynmanFixUpgrade = make(map[string]*Upgrade)
haberFixUpgrade = make(map[string]*Upgrade)
bohrUpgrade = make(map[string]*Upgrade)
)
func init() {
@ -816,6 +818,10 @@ func UpgradeBuildInSystemContract(config *params.ChainConfig, blockNumber *big.I
applySystemContractUpgrade(haberFixUpgrade[network], blockNumber, statedb, logger)
}
if config.IsOnBohr(blockNumber, lastBlockTime, blockTime) {
applySystemContractUpgrade(bohrUpgrade[network], blockNumber, statedb, logger)
}
/*
apply other upgrades
*/

@ -3,6 +3,7 @@ package vote
import (
"bytes"
"fmt"
"math/big"
"sync"
"time"
@ -19,7 +20,13 @@ import (
const blocksNumberSinceMining = 5 // the number of blocks need to wait before voting, counting from the validator begin to mine
var diffInTurn = big.NewInt(2) // Block difficulty for in-turn signatures
var votesManagerCounter = metrics.NewRegisteredCounter("votesManager/local", nil)
var notJustified = metrics.NewRegisteredCounter("votesManager/notJustified", nil)
var inTurnJustified = metrics.NewRegisteredCounter("votesManager/inTurnJustified", nil)
var notInTurnJustified = metrics.NewRegisteredCounter("votesManager/notInTurnJustified", nil)
var continuousJustified = metrics.NewRegisteredCounter("votesManager/continuousJustified", nil)
var notContinuousJustified = metrics.NewRegisteredCounter("votesManager/notContinuousJustified", nil)
// Backend wraps all methods required for voting.
type Backend interface {
@ -155,7 +162,7 @@ func (voteManager *VoteManager) loop() {
func(bLSPublicKey *types.BLSPublicKey) bool {
return bytes.Equal(voteManager.signer.PubKey[:], bLSPublicKey[:])
}) {
log.Debug("cur validator is not within the validatorSet at curHead")
log.Debug("local validator with voteKey is not within the validatorSet at curHead")
continue
}
@ -202,6 +209,36 @@ func (voteManager *VoteManager) loop() {
voteManager.pool.PutVote(voteMessage)
votesManagerCounter.Inc(1)
}
// check the latest justified block, which indicating the stability of the network
curJustifiedNumber, _, err := voteManager.engine.GetJustifiedNumberAndHash(voteManager.chain, []*types.Header{curHead})
if err == nil && curJustifiedNumber != 0 {
if curJustifiedNumber+1 != curHead.Number.Uint64() {
log.Debug("not justified", "blockNumber", curHead.Number.Uint64()-1)
notJustified.Inc(1)
} else {
parent := voteManager.chain.GetHeaderByHash(curHead.ParentHash)
if parent != nil {
if parent.Difficulty.Cmp(diffInTurn) == 0 {
inTurnJustified.Inc(1)
} else {
log.Debug("not in turn block justified", "blockNumber", parent.Number.Int64(), "blockHash", parent.Hash())
notInTurnJustified.Inc(1)
}
lastJustifiedNumber, _, err := voteManager.engine.GetJustifiedNumberAndHash(voteManager.chain, []*types.Header{parent})
if err == nil {
if lastJustifiedNumber == 0 || lastJustifiedNumber+1 == curJustifiedNumber {
continuousJustified.Inc(1)
} else {
log.Debug("not continuous block justified", "lastJustified", lastJustifiedNumber, "curJustified", curJustifiedNumber)
notContinuousJustified.Inc(1)
}
}
}
}
}
case event := <-voteManager.syncVoteCh:
voteMessage := event.Vote
if voteManager.eth.IsMining() || !bytes.Equal(voteManager.signer.PubKey[:], voteMessage.VoteAddress[:]) {

@ -26,6 +26,7 @@ import (
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/parlia"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/rawdb"
@ -440,6 +441,16 @@ func (b *EthAPIBackend) Engine() consensus.Engine {
return b.eth.engine
}
func (b *EthAPIBackend) CurrentTurnLength() (turnLength uint8, err error) {
if p, ok := b.eth.engine.(*parlia.Parlia); ok {
service := p.APIs(b.Chain())[0].Service
currentHead := rpc.LatestBlockNumber
return service.(*parlia.API).GetTurnLength(&currentHead)
}
return 1, nil
}
func (b *EthAPIBackend) CurrentHeader() *types.Header {
return b.eth.blockchain.CurrentHeader()
}

@ -870,7 +870,10 @@ func (s *BlockChainAPI) GetFinalizedHeader(ctx context.Context, probabilisticFin
return nil, fmt.Errorf("%d out of range [2,21]", probabilisticFinalized)
}
var err error
currentTurnLength, err := s.b.CurrentTurnLength()
if err != nil { // impossible
return nil, err
}
fastFinalizedHeader, err := s.b.HeaderByNumber(ctx, rpc.FinalizedBlockNumber)
if err != nil { // impossible
return nil, err
@ -879,7 +882,7 @@ func (s *BlockChainAPI) GetFinalizedHeader(ctx context.Context, probabilisticFin
if err != nil { // impossible
return nil, err
}
finalizedBlockNumber := max(fastFinalizedHeader.Number.Int64(), latestHeader.Number.Int64()-probabilisticFinalized)
finalizedBlockNumber := max(fastFinalizedHeader.Number.Int64(), latestHeader.Number.Int64()-probabilisticFinalized*int64(currentTurnLength))
return s.GetHeaderByNumber(ctx, rpc.BlockNumber(finalizedBlockNumber))
}
@ -894,7 +897,10 @@ func (s *BlockChainAPI) GetFinalizedBlock(ctx context.Context, probabilisticFina
return nil, fmt.Errorf("%d out of range [2,21]", probabilisticFinalized)
}
var err error
currentTurnLength, err := s.b.CurrentTurnLength()
if err != nil { // impossible
return nil, err
}
fastFinalizedHeader, err := s.b.HeaderByNumber(ctx, rpc.FinalizedBlockNumber)
if err != nil { // impossible
return nil, err
@ -903,7 +909,7 @@ func (s *BlockChainAPI) GetFinalizedBlock(ctx context.Context, probabilisticFina
if err != nil { // impossible
return nil, err
}
finalizedBlockNumber := max(fastFinalizedHeader.Number.Int64(), latestHeader.Number.Int64()-probabilisticFinalized)
finalizedBlockNumber := max(fastFinalizedHeader.Number.Int64(), latestHeader.Number.Int64()-probabilisticFinalized*int64(currentTurnLength))
return s.GetBlockByNumber(ctx, rpc.BlockNumber(finalizedBlockNumber), fullTx)
}

@ -633,6 +633,7 @@ func (b testBackend) SubscribeNewTxsEvent(events chan<- core.NewTxsEvent) event.
}
func (b testBackend) ChainConfig() *params.ChainConfig { return b.chain.Config() }
func (b testBackend) Engine() consensus.Engine { return b.chain.Engine() }
func (b testBackend) CurrentTurnLength() (uint8, error) { return 1, nil }
func (b testBackend) GetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error) {
panic("implement me")
}

@ -89,6 +89,8 @@ type Backend interface {
ChainConfig() *params.ChainConfig
Engine() consensus.Engine
// CurrentTurnLength return the turnLength at the latest block
CurrentTurnLength() (uint8, error)
// This is copied from filters.Backend
// eth/filters needs to be initialized from this backend type, so methods needed by

@ -416,6 +416,8 @@ func (b *backendMock) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent)
func (b *backendMock) Engine() consensus.Engine { return nil }
func (b *backendMock) CurrentTurnLength() (uint8, error) { return 1, nil }
func (b *backendMock) MevRunning() bool { return false }
func (b *backendMock) HasBuilder(builder common.Address) bool { return false }
func (b *backendMock) MevParams() *types.MevParams {

@ -192,6 +192,11 @@ var (
MinBlocksForBlobRequests uint64 = 524288 // it keeps blob data available for ~18.2 days in local, ref: https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-336.md#51-parameters.
DefaultExtraReserveForBlobRequests uint64 = 1 * (24 * 3600) / 3 // it adds more time for expired blobs for some request cases, like expiry blob when remote peer is syncing, default 1 day.
BreatheBlockInterval uint64 = 86400 // Controls the interval for updateValidatorSetV2
// used for testing:
// [1,9] except 2 --> used as turn length directly
// 2 --> use random values to test switching turn length
// 0 and other values --> get turn length from contract
FixedTurnLength uint64 = 0
)
// Gas discount table for BLS12-381 G1 and G2 multi exponentiation operations