You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
792 lines
27 KiB
792 lines
27 KiB
package consensus
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
|
|
protobuf "github.com/golang/protobuf/proto"
|
|
"github.com/harmony-one/bls/ffi/go/bls"
|
|
|
|
"github.com/harmony-one/harmony/api/proto"
|
|
msg_pb "github.com/harmony-one/harmony/api/proto/message"
|
|
"github.com/harmony-one/harmony/api/service/explorer"
|
|
"github.com/harmony-one/harmony/core/types"
|
|
bls_cosi "github.com/harmony-one/harmony/crypto/bls"
|
|
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
|
|
"github.com/harmony-one/harmony/internal/ctxerror"
|
|
"github.com/harmony-one/harmony/internal/utils"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
"github.com/harmony-one/harmony/p2p/host"
|
|
)
|
|
|
|
// handleMessageUpdate will update the consensus state according to received message
|
|
func (consensus *Consensus) handleMessageUpdate(payload []byte) {
|
|
if len(payload) == 0 {
|
|
return
|
|
}
|
|
msg := &msg_pb.Message{}
|
|
err := protobuf.Unmarshal(payload, msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Failed to unmarshal message payload.", "err", err, "consensus", consensus)
|
|
return
|
|
}
|
|
|
|
// when node is in ViewChanging mode, it still accepts normal message into PbftLog to avoid possible trap forever
|
|
// but drop PREPARE and COMMIT which are message types for leader
|
|
if consensus.mode.Mode() == ViewChanging && (msg.Type == msg_pb.MessageType_PREPARE || msg.Type == msg_pb.MessageType_COMMIT) {
|
|
return
|
|
}
|
|
|
|
switch msg.Type {
|
|
case msg_pb.MessageType_ANNOUNCE:
|
|
consensus.onAnnounce(msg)
|
|
case msg_pb.MessageType_PREPARE:
|
|
consensus.onPrepare(msg)
|
|
case msg_pb.MessageType_PREPARED:
|
|
consensus.onPrepared(msg)
|
|
case msg_pb.MessageType_COMMIT:
|
|
consensus.onCommit(msg)
|
|
case msg_pb.MessageType_COMMITTED:
|
|
consensus.onCommitted(msg)
|
|
case msg_pb.MessageType_VIEWCHANGE:
|
|
consensus.onViewChange(msg)
|
|
case msg_pb.MessageType_NEWVIEW:
|
|
consensus.onNewView(msg)
|
|
}
|
|
|
|
}
|
|
|
|
// TODO: move to consensus_leader.go later
|
|
func (consensus *Consensus) tryAnnounce(block *types.Block) {
|
|
// here we assume the leader should always be update to date
|
|
if block.NumberU64() != consensus.blockNum {
|
|
utils.GetLogInstance().Debug("tryAnnounce blockNum not match", "blockNum", block.NumberU64(), "myBlockNum", consensus.blockNum)
|
|
return
|
|
}
|
|
if !consensus.PubKey.IsEqual(consensus.LeaderPubKey) {
|
|
utils.GetLogInstance().Debug("tryAnnounce key not match", "myKey", consensus.PubKey, "leaderKey", consensus.LeaderPubKey)
|
|
return
|
|
}
|
|
blockHash := block.Hash()
|
|
copy(consensus.blockHash[:], blockHash[:])
|
|
|
|
// prepare message and broadcast to validators
|
|
encodedBlock, err := rlp.EncodeToBytes(block)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("tryAnnounce Failed encoding block")
|
|
return
|
|
}
|
|
consensus.block = encodedBlock
|
|
msgToSend := consensus.constructAnnounceMessage()
|
|
consensus.switchPhase(Prepare)
|
|
|
|
// save announce message to pbftLog
|
|
msgPayload, _ := proto.GetConsensusMessagePayload(msgToSend)
|
|
msg := &msg_pb.Message{}
|
|
_ = protobuf.Unmarshal(msgPayload, msg)
|
|
pbftMsg, err := ParsePbftMessage(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Warn("tryAnnounce unable to parse pbft message", "error", err)
|
|
return
|
|
}
|
|
|
|
consensus.pbftLog.AddMessage(pbftMsg)
|
|
consensus.pbftLog.AddBlock(block)
|
|
|
|
// Leader sign the block hash itself
|
|
consensus.prepareSigs[consensus.SelfAddress] = consensus.priKey.SignHash(consensus.blockHash[:])
|
|
|
|
// Construct broadcast p2p message
|
|
utils.GetLogInstance().Warn("tryAnnounce", "sent announce message", len(msgToSend), "groupID", p2p.NewGroupIDByShardID(p2p.ShardID(consensus.ShardID)))
|
|
consensus.host.SendMessageToGroups([]p2p.GroupID{p2p.NewGroupIDByShardID(p2p.ShardID(consensus.ShardID))}, host.ConstructP2pMessage(byte(17), msgToSend))
|
|
}
|
|
|
|
func (consensus *Consensus) onAnnounce(msg *msg_pb.Message) {
|
|
if consensus.PubKey.IsEqual(consensus.LeaderPubKey) {
|
|
return
|
|
}
|
|
|
|
senderKey, err := consensus.verifySenderKey(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onAnnounce verifySenderKey failed", "error", err)
|
|
return
|
|
}
|
|
if !senderKey.IsEqual(consensus.LeaderPubKey) && consensus.mode.Mode() != Syncing {
|
|
utils.GetLogInstance().Warn("onAnnounce senderKey not match leader PubKey", "senderKey", senderKey.GetHexString(), "leaderKey", consensus.LeaderPubKey.GetHexString())
|
|
return
|
|
}
|
|
if err = verifyMessageSig(senderKey, msg); err != nil {
|
|
utils.GetLogInstance().Debug("onAnnounce Failed to verify leader signature", "error", err)
|
|
return
|
|
}
|
|
|
|
recvMsg, err := ParsePbftMessage(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onAnnounce Unparseable leader message", "error", err)
|
|
return
|
|
}
|
|
block := recvMsg.Payload
|
|
|
|
// check block header is valid
|
|
var blockObj types.Block
|
|
err = rlp.DecodeBytes(block, &blockObj)
|
|
if err != nil {
|
|
utils.GetLogInstance().Warn("onAnnounce Unparseable block header data", "error", err)
|
|
return
|
|
}
|
|
|
|
if blockObj.NumberU64() != recvMsg.BlockNum || recvMsg.BlockNum < consensus.blockNum {
|
|
utils.GetLogger().Warn("blockNum not match", "recvBlockNum", recvMsg.BlockNum, "blockObjNum", blockObj.NumberU64(), "myBlockNum", consensus.blockNum)
|
|
return
|
|
}
|
|
|
|
if consensus.mode.Mode() != Syncing {
|
|
// skip verify header when node is in Syncing mode
|
|
if err := consensus.VerifyHeader(consensus.ChainReader, blockObj.Header(), false); err != nil {
|
|
utils.GetLogInstance().Warn("onAnnounce block content is not verified successfully", "error", err, "inChain", consensus.ChainReader.CurrentHeader().Number, "have", blockObj.Header().ParentHash)
|
|
return
|
|
}
|
|
}
|
|
|
|
// skip verify block in Syncing mode
|
|
if consensus.BlockVerifier == nil && consensus.mode.Mode() == Syncing {
|
|
// do nothing
|
|
} else if err := consensus.BlockVerifier(&blockObj); err != nil {
|
|
// TODO ek – maybe we could do this in commit phase
|
|
err := ctxerror.New("block verification failed",
|
|
"blockHash", blockObj.Hash(),
|
|
).WithCause(err)
|
|
ctxerror.Log15(utils.GetLogInstance().Warn, err)
|
|
return
|
|
}
|
|
//blockObj.Logger(utils.GetLogger()).Debug("received announce", "viewID", recvMsg.ViewID, "msgBlockNum", recvMsg.BlockNum)
|
|
logMsgs := consensus.pbftLog.GetMessagesByTypeSeqView(msg_pb.MessageType_ANNOUNCE, recvMsg.BlockNum, recvMsg.ViewID)
|
|
if len(logMsgs) > 0 {
|
|
if logMsgs[0].BlockHash != blockObj.Header().Hash() {
|
|
utils.GetLogInstance().Debug("onAnnounce leader is malicious", "leaderKey", utils.GetBlsAddress(consensus.LeaderPubKey))
|
|
consensus.startViewChange(consensus.viewID + 1)
|
|
}
|
|
return
|
|
}
|
|
blockPayload := make([]byte, len(block))
|
|
copy(blockPayload[:], block[:])
|
|
consensus.block = blockPayload
|
|
consensus.blockHash = recvMsg.BlockHash
|
|
consensus.pbftLog.AddMessage(recvMsg)
|
|
consensus.pbftLog.AddBlock(&blockObj)
|
|
|
|
// we have already added message and block, skip check viewID and send prepare message if is in ViewChanging mode
|
|
if consensus.mode.Mode() == ViewChanging {
|
|
return
|
|
}
|
|
|
|
if consensus.checkViewID(recvMsg) != nil {
|
|
utils.GetLogger().Debug("viewID check failed", "viewID", recvMsg.ViewID, "myViewID", consensus.viewID)
|
|
return
|
|
}
|
|
consensus.tryPrepare(blockObj.Header().Hash())
|
|
|
|
return
|
|
}
|
|
|
|
// tryPrepare will try to send prepare message
|
|
func (consensus *Consensus) tryPrepare(blockHash common.Hash) {
|
|
var hash common.Hash
|
|
copy(hash[:], blockHash[:])
|
|
block := consensus.pbftLog.GetBlockByHash(hash)
|
|
if block == nil {
|
|
return
|
|
}
|
|
|
|
if consensus.phase != Announce || consensus.blockNum != block.NumberU64() || !consensus.pbftLog.HasMatchingAnnounce(consensus.blockNum, consensus.viewID, hash) {
|
|
return
|
|
}
|
|
|
|
consensus.switchPhase(Prepare)
|
|
|
|
if !consensus.PubKey.IsEqual(consensus.LeaderPubKey) { //TODO(chao): check whether this is necessary when calling tryPrepare
|
|
// Construct and send prepare message
|
|
msgToSend := consensus.constructPrepareMessage()
|
|
utils.GetLogInstance().Info("tryPrepare", "sent prepare message", len(msgToSend))
|
|
consensus.host.SendMessageToGroups([]p2p.GroupID{p2p.NewGroupIDByShardID(p2p.ShardID(consensus.ShardID))}, host.ConstructP2pMessage(byte(17), msgToSend))
|
|
}
|
|
}
|
|
|
|
// TODO: move to consensus_leader.go later
|
|
func (consensus *Consensus) onPrepare(msg *msg_pb.Message) {
|
|
if !consensus.PubKey.IsEqual(consensus.LeaderPubKey) {
|
|
return
|
|
}
|
|
|
|
senderKey, err := consensus.verifySenderKey(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onPrepare verifySenderKey failed", "error", err)
|
|
return
|
|
}
|
|
if err = verifyMessageSig(senderKey, msg); err != nil {
|
|
utils.GetLogInstance().Debug("onPrepare Failed to verify sender's signature", "error", err)
|
|
return
|
|
}
|
|
|
|
recvMsg, err := ParsePbftMessage(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("[Consensus] onPrepare Unparseable validator message", "error", err)
|
|
return
|
|
}
|
|
|
|
if recvMsg.ViewID != consensus.viewID || recvMsg.BlockNum != consensus.blockNum || consensus.phase != Prepare {
|
|
utils.GetLogInstance().Debug("onPrepare message not match", "myPhase", consensus.phase, "myViewID", consensus.viewID,
|
|
"msgViewID", recvMsg.ViewID, "myBlockNum", consensus.blockNum, "msgBlockNum", recvMsg.BlockNum)
|
|
return
|
|
}
|
|
|
|
if !consensus.pbftLog.HasMatchingAnnounce(consensus.blockNum, consensus.viewID, recvMsg.BlockHash) {
|
|
utils.GetLogInstance().Debug("onPrepare no matching announce message", "blockNum", consensus.blockNum, "viewID", consensus.viewID, "blockHash", recvMsg.BlockHash)
|
|
return
|
|
}
|
|
|
|
validatorPubKey := recvMsg.SenderPubkey
|
|
addrBytes := validatorPubKey.GetAddress()
|
|
validatorAddress := common.BytesToAddress(addrBytes[:])
|
|
|
|
prepareSig := recvMsg.Payload
|
|
prepareSigs := consensus.prepareSigs
|
|
prepareBitmap := consensus.prepareBitmap
|
|
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
if len(prepareSigs) >= consensus.Quorum() {
|
|
// already have enough signatures
|
|
return
|
|
}
|
|
|
|
// proceed only when the message is not received before
|
|
_, ok := prepareSigs[validatorAddress]
|
|
if ok {
|
|
utils.GetLogInstance().Debug("Already received prepare message from the validator", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
|
|
// Check BLS signature for the multi-sig
|
|
var sign bls.Sign
|
|
err = sign.Deserialize(prepareSig)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Failed to deserialize bls signature", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
if !sign.VerifyHash(validatorPubKey, consensus.blockHash[:]) {
|
|
utils.GetLogInstance().Error("Received invalid BLS signature", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
|
|
utils.GetLogInstance().Debug("Received new prepare signature", "numReceivedSoFar", len(prepareSigs), "validatorAddress", validatorAddress, "PublicKeys", len(consensus.PublicKeys))
|
|
prepareSigs[validatorAddress] = &sign
|
|
prepareBitmap.SetKey(validatorPubKey, true) // Set the bitmap indicating that this validator signed.
|
|
|
|
if len(prepareSigs) >= consensus.Quorum() {
|
|
consensus.switchPhase(Commit)
|
|
|
|
// Construct and broadcast prepared message
|
|
msgToSend, aggSig := consensus.constructPreparedMessage()
|
|
consensus.aggregatedPrepareSig = aggSig
|
|
|
|
utils.GetLogInstance().Warn("onPrepare", "sent prepared message", len(msgToSend))
|
|
consensus.host.SendMessageToGroups([]p2p.GroupID{p2p.NewGroupIDByShardID(p2p.ShardID(consensus.ShardID))}, host.ConstructP2pMessage(byte(17), msgToSend))
|
|
|
|
// Leader sign the multi-sig and bitmap (for commit phase)
|
|
multiSigAndBitmap := append(aggSig.Serialize(), prepareBitmap.Bitmap...)
|
|
consensus.commitSigs[consensus.SelfAddress] = consensus.priKey.SignHash(multiSigAndBitmap)
|
|
}
|
|
return
|
|
}
|
|
|
|
func (consensus *Consensus) onPrepared(msg *msg_pb.Message) {
|
|
if consensus.PubKey.IsEqual(consensus.LeaderPubKey) {
|
|
return
|
|
}
|
|
|
|
senderKey, err := consensus.verifySenderKey(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onPrepared verifySenderKey failed", "error", err)
|
|
return
|
|
}
|
|
if !senderKey.IsEqual(consensus.LeaderPubKey) && consensus.mode.Mode() != Syncing {
|
|
utils.GetLogInstance().Warn("onPrepared senderKey not match leader PubKey")
|
|
return
|
|
}
|
|
if err := verifyMessageSig(senderKey, msg); err != nil {
|
|
utils.GetLogInstance().Debug("onPrepared Failed to verify sender's signature", "error", err)
|
|
return
|
|
}
|
|
|
|
utils.GetLogInstance().Info("onPrepared received prepared message", "ValidatorAddress", consensus.SelfAddress)
|
|
|
|
recvMsg, err := ParsePbftMessage(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onPrepared Unparseable validator message", "error", err)
|
|
return
|
|
}
|
|
if recvMsg.BlockNum < consensus.blockNum {
|
|
utils.GetLogger().Debug("old block received, ignoring",
|
|
"receivedNumber", recvMsg.BlockNum,
|
|
"expectedNumber", consensus.blockNum)
|
|
return
|
|
}
|
|
|
|
blockHash := recvMsg.BlockHash
|
|
aggSig, mask, err := consensus.readSignatureBitmapPayload(recvMsg.Payload, 0)
|
|
if err != nil {
|
|
utils.GetLogger().Error("readSignatureBitmapPayload failed", "error", err)
|
|
return
|
|
}
|
|
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
|
|
// TODO: add 2f+1 signature checking
|
|
if !aggSig.VerifyHash(mask.AggregatePublic, blockHash[:]) {
|
|
myBlockHash := common.Hash{}
|
|
myBlockHash.SetBytes(consensus.blockHash[:])
|
|
utils.GetLogInstance().Warn("onPrepared failed to verify multi signature for prepare phase", "blockHash", blockHash, "myBlockHash", myBlockHash)
|
|
return
|
|
}
|
|
|
|
// TODO ek/cm - make sure we update blocks for syncing
|
|
consensus.pbftLog.AddMessage(recvMsg)
|
|
|
|
if consensus.mode.Mode() == ViewChanging {
|
|
utils.GetLogger().Debug("viewchanging mode just exist after viewchanging")
|
|
return
|
|
}
|
|
|
|
if consensus.checkViewID(recvMsg) != nil {
|
|
utils.GetLogger().Debug("viewID check failed", "viewID", recvMsg.ViewID, "myViewID", consensus.viewID)
|
|
return
|
|
}
|
|
if recvMsg.BlockNum > consensus.blockNum {
|
|
utils.GetLogger().Debug("future block received, ignoring",
|
|
"receivedNumber", recvMsg.BlockNum,
|
|
"expectedNumber", consensus.blockNum)
|
|
return
|
|
}
|
|
|
|
consensus.aggregatedPrepareSig = aggSig
|
|
consensus.prepareBitmap = mask
|
|
|
|
if consensus.phase != Prepare {
|
|
utils.GetLogger().Debug("we are in a wrong phase",
|
|
"actualPhase", consensus.phase,
|
|
"expectedPhase", Prepare)
|
|
return
|
|
}
|
|
|
|
// Construct and send the commit message
|
|
multiSigAndBitmap := append(aggSig.Serialize(), consensus.prepareBitmap.Bitmap...)
|
|
msgToSend := consensus.constructCommitMessage(multiSigAndBitmap)
|
|
utils.GetLogInstance().Warn("[Consensus]", "sent commit message", len(msgToSend))
|
|
consensus.host.SendMessageToGroups([]p2p.GroupID{p2p.NewGroupIDByShardID(p2p.ShardID(consensus.ShardID))}, host.ConstructP2pMessage(byte(17), msgToSend))
|
|
|
|
consensus.switchPhase(Commit)
|
|
|
|
return
|
|
}
|
|
|
|
// TODO: move it to consensus_leader.go later
|
|
func (consensus *Consensus) onCommit(msg *msg_pb.Message) {
|
|
if !consensus.PubKey.IsEqual(consensus.LeaderPubKey) {
|
|
return
|
|
}
|
|
|
|
senderKey, err := consensus.verifySenderKey(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onCommit verifySenderKey failed", "error", err)
|
|
return
|
|
}
|
|
if err = verifyMessageSig(senderKey, msg); err != nil {
|
|
utils.GetLogInstance().Debug("onCommit Failed to verify sender's signature", "error", err)
|
|
return
|
|
}
|
|
|
|
recvMsg, err := ParsePbftMessage(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onCommit parse pbft message failed", "error", err)
|
|
return
|
|
}
|
|
|
|
if recvMsg.ViewID != consensus.viewID || recvMsg.BlockNum != consensus.blockNum || consensus.phase != Commit {
|
|
return
|
|
}
|
|
|
|
if !consensus.pbftLog.HasMatchingAnnounce(consensus.blockNum, consensus.viewID, recvMsg.BlockHash) {
|
|
return
|
|
}
|
|
|
|
validatorPubKey := recvMsg.SenderPubkey
|
|
addrBytes := validatorPubKey.GetAddress()
|
|
validatorAddress := common.BytesToAddress(addrBytes[:])
|
|
|
|
commitSig := recvMsg.Payload
|
|
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
|
|
if !consensus.IsValidatorInCommittee(validatorAddress) {
|
|
utils.GetLogInstance().Error("Invalid validator", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
|
|
commitSigs := consensus.commitSigs
|
|
commitBitmap := consensus.commitBitmap
|
|
|
|
// proceed only when the message is not received before
|
|
_, ok := commitSigs[validatorAddress]
|
|
if ok {
|
|
utils.GetLogInstance().Debug("Already received commit message from the validator", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
|
|
quorumWasMet := len(commitSigs) >= consensus.Quorum()
|
|
|
|
// Verify the signature on prepare multi-sig and bitmap is correct
|
|
var sign bls.Sign
|
|
err = sign.Deserialize(commitSig)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("Failed to deserialize bls signature", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
aggSig := bls_cosi.AggregateSig(consensus.GetPrepareSigsArray())
|
|
if !sign.VerifyHash(validatorPubKey, append(aggSig.Serialize(), consensus.prepareBitmap.Bitmap...)) {
|
|
utils.GetLogInstance().Error("Received invalid BLS signature", "validatorAddress", validatorAddress)
|
|
return
|
|
}
|
|
|
|
utils.GetLogInstance().Debug("Received new commit message", "numReceivedSoFar", len(commitSigs), "validatorAddress", validatorAddress)
|
|
commitSigs[validatorAddress] = &sign
|
|
// Set the bitmap indicating that this validator signed.
|
|
commitBitmap.SetKey(validatorPubKey, true)
|
|
|
|
quorumIsMet := len(commitSigs) >= consensus.Quorum()
|
|
|
|
if !quorumWasMet && quorumIsMet {
|
|
utils.GetLogInstance().Info("Enough commits received!", "num", len(commitSigs), "state", consensus.state)
|
|
go func(round uint64) {
|
|
time.Sleep(1 * time.Second)
|
|
utils.GetLogger().Debug("Commit grace period ended", "round", round)
|
|
consensus.commitFinishChan <- round
|
|
}(consensus.round)
|
|
}
|
|
}
|
|
|
|
func (consensus *Consensus) finalizeCommits() {
|
|
utils.GetLogger().Info("finalizing block", "num", len(consensus.commitSigs), "state", consensus.state)
|
|
consensus.switchPhase(Announce)
|
|
|
|
// Construct and broadcast committed message
|
|
msgToSend, aggSig := consensus.constructCommittedMessage()
|
|
consensus.aggregatedCommitSig = aggSig
|
|
|
|
utils.GetLogInstance().Warn("[Consensus]", "sent committed message", len(msgToSend))
|
|
consensus.host.SendMessageToGroups([]p2p.GroupID{p2p.NewGroupIDByShardID(p2p.ShardID(consensus.ShardID))}, host.ConstructP2pMessage(byte(17), msgToSend))
|
|
|
|
var blockObj types.Block
|
|
err := rlp.DecodeBytes(consensus.block, &blockObj)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("failed to construct the new block after consensus")
|
|
}
|
|
|
|
// Sign the block
|
|
blockObj.SetPrepareSig(
|
|
consensus.aggregatedPrepareSig.Serialize(),
|
|
consensus.prepareBitmap.Bitmap)
|
|
blockObj.SetCommitSig(
|
|
consensus.aggregatedCommitSig.Serialize(),
|
|
consensus.commitBitmap.Bitmap)
|
|
|
|
select {
|
|
case consensus.VerifiedNewBlock <- &blockObj:
|
|
default:
|
|
utils.GetLogInstance().Info("[SYNC] Failed to send consensus verified block for state sync", "blockHash", blockObj.Hash())
|
|
}
|
|
|
|
consensus.reportMetrics(blockObj)
|
|
|
|
// Dump new block into level db.
|
|
explorer.GetStorageInstance(consensus.leader.IP, consensus.leader.Port, true).Dump(&blockObj, consensus.viewID)
|
|
|
|
// Reset state to Finished, and clear other data.
|
|
consensus.ResetState()
|
|
consensus.viewID++
|
|
consensus.blockNum++
|
|
|
|
consensus.consensusTimeout[timeoutConsensus].Start()
|
|
consensus.consensusTimeout[timeoutBootstrap].Stop()
|
|
|
|
consensus.OnConsensusDone(&blockObj)
|
|
utils.GetLogInstance().Debug("HOORAY!!!!!!! CONSENSUS REACHED!!!!!!!", "viewID", consensus.viewID, "numOfSignatures", len(consensus.commitSigs))
|
|
|
|
// Send signal to Node so the new block can be added and new round of consensus can be triggered
|
|
consensus.ReadySignal <- struct{}{}
|
|
}
|
|
|
|
func (consensus *Consensus) onCommitted(msg *msg_pb.Message) {
|
|
utils.GetLogInstance().Warn("Received Committed Message", "ValidatorAddress", consensus.SelfAddress)
|
|
|
|
if consensus.PubKey.IsEqual(consensus.LeaderPubKey) {
|
|
return
|
|
}
|
|
|
|
senderKey, err := consensus.verifySenderKey(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("onCommitted verifySenderKey failed", "error", err)
|
|
return
|
|
}
|
|
if !senderKey.IsEqual(consensus.LeaderPubKey) && consensus.mode.Mode() != Syncing {
|
|
utils.GetLogInstance().Warn("onCommitted senderKey not match leader PubKey")
|
|
return
|
|
}
|
|
if err = verifyMessageSig(senderKey, msg); err != nil {
|
|
utils.GetLogInstance().Debug("onCommitted Failed to verify sender's signature", "error", err)
|
|
return
|
|
}
|
|
|
|
recvMsg, err := ParsePbftMessage(msg)
|
|
if err != nil {
|
|
utils.GetLogInstance().Warn("onCommitted unable to parse msg", "error", err)
|
|
return
|
|
}
|
|
if recvMsg.BlockNum < consensus.blockNum {
|
|
return
|
|
}
|
|
|
|
validatorPubKey := recvMsg.SenderPubkey
|
|
addrBytes := validatorPubKey.GetAddress()
|
|
leaderAddress := common.BytesToAddress(addrBytes[:]).Hex()
|
|
|
|
aggSig, mask, err := consensus.readSignatureBitmapPayload(recvMsg.Payload, 0)
|
|
if err != nil {
|
|
utils.GetLogger().Error("readSignatureBitmapPayload failed", "error", err)
|
|
return
|
|
}
|
|
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
|
|
consensus.pbftLog.AddMessage(recvMsg)
|
|
// skip ViewChanging and Syncing??
|
|
if consensus.mode.Mode() == Normal {
|
|
// TODO: add 2f+1 signature checking
|
|
if consensus.aggregatedPrepareSig == nil || consensus.prepareBitmap == nil {
|
|
utils.GetLogger().Debug("Not receive prepared message yet")
|
|
return
|
|
}
|
|
prepareMultiSigAndBitmap := append(consensus.aggregatedPrepareSig.Serialize(), consensus.prepareBitmap.Bitmap...)
|
|
if !aggSig.VerifyHash(mask.AggregatePublic, prepareMultiSigAndBitmap) {
|
|
utils.GetLogger().Error("Failed to verify the multi signature for commit phase", "leader Address", leaderAddress)
|
|
return
|
|
}
|
|
|
|
if consensus.checkViewID(recvMsg) != nil {
|
|
utils.GetLogger().Debug("viewID check failed", "viewID", recvMsg.ViewID, "myViewID", consensus.viewID)
|
|
return
|
|
}
|
|
}
|
|
|
|
if recvMsg.BlockNum > consensus.blockNum {
|
|
return
|
|
}
|
|
consensus.aggregatedCommitSig = aggSig
|
|
consensus.commitBitmap = mask
|
|
|
|
consensus.tryCatchup()
|
|
consensus.consensusTimeout[timeoutConsensus].Start()
|
|
consensus.consensusTimeout[timeoutBootstrap].Stop()
|
|
return
|
|
}
|
|
|
|
// try to catch up if fall behind
|
|
func (consensus *Consensus) tryCatchup() {
|
|
utils.GetLogInstance().Info("tryCatchup: commit new blocks", "blockNum", consensus.blockNum)
|
|
if consensus.phase != Commit && consensus.mode.Mode() == Normal {
|
|
return
|
|
}
|
|
currentBlockNum := consensus.blockNum
|
|
consensus.switchPhase(Announce)
|
|
for {
|
|
msgs := consensus.pbftLog.GetMessagesByTypeSeq(msg_pb.MessageType_COMMITTED, consensus.blockNum)
|
|
if len(msgs) == 0 {
|
|
break
|
|
}
|
|
if len(msgs) > 1 {
|
|
utils.GetLogInstance().Error("[PBFT] DANGER!!! we should only get one committed message for a given blockNum", "blockNum", consensus.blockNum, "numMsgs", len(msgs))
|
|
}
|
|
|
|
block := consensus.pbftLog.GetBlockByHash(msgs[0].BlockHash)
|
|
if block == nil {
|
|
break
|
|
}
|
|
|
|
if block.ParentHash() != consensus.ChainReader.CurrentHeader().Hash() {
|
|
utils.GetLogInstance().Debug("[PBFT] parent block hash not match", "blockNum", consensus.blockNum)
|
|
break
|
|
}
|
|
|
|
preparedMsgs := consensus.pbftLog.GetMessagesByTypeSeqHash(msg_pb.MessageType_PREPARED, msgs[0].BlockNum, msgs[0].BlockHash)
|
|
if len(preparedMsgs) > 1 {
|
|
utils.GetLogInstance().Warn("[PBFT] we get more than one prepared messages for a given blockNum", "blockNum", consensus.blockNum, "numMsgs", len(preparedMsgs))
|
|
}
|
|
if len(preparedMsgs) == 0 {
|
|
break
|
|
}
|
|
|
|
msg := consensus.pbftLog.FindMessageByMaxViewID(preparedMsgs)
|
|
if msg == nil {
|
|
break
|
|
}
|
|
consensus.blockHash = [32]byte{}
|
|
consensus.blockNum = consensus.blockNum + 1
|
|
consensus.viewID = msgs[0].ViewID + 1
|
|
consensus.LeaderPubKey = msgs[0].SenderPubkey
|
|
|
|
//#### Read payload data from committed msg
|
|
aggSig := make([]byte, 48)
|
|
bitmap := make([]byte, len(msgs[0].Payload)-48)
|
|
offset := 0
|
|
copy(aggSig[:], msgs[0].Payload[offset:offset+48])
|
|
offset += 48
|
|
copy(bitmap[:], msgs[0].Payload[offset:])
|
|
//#### END Read payload data from committed msg
|
|
|
|
//#### Read payload data from prepared msg
|
|
prepareSig := make([]byte, 48)
|
|
prepareBitmap := make([]byte, len(msg.Payload)-48)
|
|
offset = 0
|
|
copy(prepareSig[:], msg.Payload[offset:offset+48])
|
|
offset += 48
|
|
copy(prepareBitmap[:], msg.Payload[offset:])
|
|
//#### END Read payload data from committed msg
|
|
|
|
// Put the signatures into the block
|
|
block.SetPrepareSig(prepareSig, prepareBitmap)
|
|
|
|
block.SetCommitSig(aggSig, bitmap)
|
|
utils.GetLogInstance().Info("Adding block to chain", "numTx", len(block.Transactions()))
|
|
consensus.OnConsensusDone(block)
|
|
consensus.ResetState()
|
|
|
|
select {
|
|
case consensus.VerifiedNewBlock <- block:
|
|
default:
|
|
utils.GetLogInstance().Info("[SYNC] consensus verified block send to chan failed", "blockHash", block.Hash())
|
|
continue
|
|
}
|
|
|
|
break
|
|
}
|
|
// catup up and skip from view change trap
|
|
if currentBlockNum < consensus.blockNum && consensus.mode.Mode() == ViewChanging {
|
|
consensus.mode.SetMode(Normal)
|
|
consensus.consensusTimeout[timeoutViewChange].Stop()
|
|
}
|
|
// clean up old log
|
|
consensus.pbftLog.DeleteBlocksLessThan(consensus.blockNum)
|
|
consensus.pbftLog.DeleteMessagesLessThan(consensus.blockNum)
|
|
}
|
|
|
|
// Start waits for the next new block and run consensus
|
|
func (consensus *Consensus) Start(blockChannel chan *types.Block, stopChan chan struct{}, stoppedChan chan struct{}, startChannel chan struct{}) {
|
|
if nodeconfig.GetDefaultConfig().IsLeader() {
|
|
<-startChannel
|
|
}
|
|
go func() {
|
|
utils.GetLogInstance().Info("start consensus", "time", time.Now())
|
|
defer close(stoppedChan)
|
|
ticker := time.NewTicker(3 * time.Second)
|
|
consensus.consensusTimeout[timeoutBootstrap].Start()
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
for k, v := range consensus.consensusTimeout {
|
|
if consensus.mode.Mode() == Syncing {
|
|
v.Stop()
|
|
}
|
|
if !v.CheckExpire() {
|
|
continue
|
|
}
|
|
if k != timeoutViewChange {
|
|
utils.GetLogInstance().Debug("ops", "phase", k, "mode", consensus.mode.Mode())
|
|
consensus.startViewChange(consensus.viewID + 1)
|
|
break
|
|
} else {
|
|
utils.GetLogInstance().Debug("ops", "phase", k, "mode", consensus.mode.Mode())
|
|
viewID := consensus.mode.ViewID()
|
|
consensus.startViewChange(viewID + 1)
|
|
break
|
|
}
|
|
}
|
|
|
|
case <-consensus.syncReadyChan:
|
|
func() {
|
|
consensus.mode.mux.Lock()
|
|
defer consensus.mode.mux.Unlock()
|
|
if consensus.mode.mode != Syncing {
|
|
return
|
|
}
|
|
consensus.mode.mode = Syncing
|
|
consensus.SetBlockNum(consensus.ChainReader.CurrentHeader().Number.Uint64() + 1)
|
|
consensus.ignoreViewIDCheck = true
|
|
}()
|
|
|
|
case newBlock := <-blockChannel:
|
|
utils.GetLogInstance().Info("receive newBlock", "blockNum", newBlock.NumberU64())
|
|
if consensus.ShardID == 0 {
|
|
// TODO ek/rj - re-enable this after fixing DRand
|
|
//if core.IsEpochBlock(newBlock) { // Only beacon chain do randomness generation
|
|
// // Receive pRnd from DRG protocol
|
|
// utils.GetLogInstance().Debug("[DRG] Waiting for pRnd")
|
|
// pRndAndBitmap := <-consensus.PRndChannel
|
|
// utils.GetLogInstance().Debug("[DRG] Got pRnd", "pRnd", pRndAndBitmap)
|
|
// pRnd := [32]byte{}
|
|
// copy(pRnd[:], pRndAndBitmap[:32])
|
|
// bitmap := pRndAndBitmap[32:]
|
|
// vrfBitmap, _ := bls_cosi.NewMask(consensus.PublicKeys, consensus.leader.ConsensusPubKey)
|
|
// vrfBitmap.SetMask(bitmap)
|
|
//
|
|
// // TODO: check validity of pRnd
|
|
// newBlock.AddRandPreimage(pRnd)
|
|
//}
|
|
|
|
rnd, blockHash, err := consensus.GetNextRnd()
|
|
if err == nil {
|
|
// Verify the randomness
|
|
_ = blockHash
|
|
utils.GetLogInstance().Info("Adding randomness into new block", "rnd", rnd)
|
|
newBlock.AddRandSeed(rnd)
|
|
} else {
|
|
utils.GetLogInstance().Info("Failed to get randomness", "error", err)
|
|
}
|
|
}
|
|
|
|
startTime = time.Now()
|
|
utils.GetLogInstance().Debug("STARTING CONSENSUS", "numTxs", len(newBlock.Transactions()), "consensus", consensus, "startTime", startTime, "publicKeys", len(consensus.PublicKeys))
|
|
consensus.tryAnnounce(newBlock)
|
|
|
|
case msg := <-consensus.MsgChan:
|
|
consensus.handleMessageUpdate(msg)
|
|
|
|
case round := <-consensus.commitFinishChan:
|
|
func() {
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
if round == consensus.round {
|
|
consensus.finalizeCommits()
|
|
}
|
|
}()
|
|
|
|
case <-stopChan:
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|