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.
320 lines
9.5 KiB
320 lines
9.5 KiB
package consensus
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/harmony-one/harmony/crypto/bls"
|
|
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
|
|
|
|
"github.com/harmony-one/harmony/consensus/signature"
|
|
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
bls_core "github.com/harmony-one/bls/ffi/go/bls"
|
|
msg_pb "github.com/harmony-one/harmony/api/proto/message"
|
|
"github.com/harmony-one/harmony/consensus/quorum"
|
|
"github.com/harmony-one/harmony/core/types"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
)
|
|
|
|
func (consensus *Consensus) announce(block *types.Block) {
|
|
blockHash := block.Hash()
|
|
|
|
// prepare message and broadcast to validators
|
|
encodedBlock, err := rlp.EncodeToBytes(block)
|
|
if err != nil {
|
|
consensus.getLogger().Debug().Msg("[Announce] Failed encoding block")
|
|
return
|
|
}
|
|
|
|
//// Lock Write - Start
|
|
consensus.mutex.Lock()
|
|
copy(consensus.blockHash[:], blockHash[:])
|
|
consensus.block = encodedBlock
|
|
consensus.mutex.Unlock()
|
|
//// Lock Write - End
|
|
|
|
key, err := consensus.GetConsensusLeaderPrivateKey()
|
|
if err != nil {
|
|
consensus.getLogger().Warn().Err(err).Msg("[Announce] Node not a leader")
|
|
return
|
|
}
|
|
|
|
networkMessage, err := consensus.construct(msg_pb.MessageType_ANNOUNCE, nil, []*bls.PrivateKeyWrapper{key})
|
|
if err != nil {
|
|
consensus.getLogger().Err(err).
|
|
Str("message-type", msg_pb.MessageType_ANNOUNCE.String()).
|
|
Msg("failed constructing message")
|
|
return
|
|
}
|
|
msgToSend, FPBTMsg := networkMessage.Bytes, networkMessage.FBFTMsg
|
|
|
|
consensus.FBFTLog.AddMessage(FPBTMsg)
|
|
consensus.getLogger().Debug().
|
|
Str("MsgBlockHash", FPBTMsg.BlockHash.Hex()).
|
|
Uint64("MsgViewID", FPBTMsg.ViewID).
|
|
Uint64("MsgBlockNum", FPBTMsg.BlockNum).
|
|
Msg("[Announce] Added Announce message in FPBT")
|
|
consensus.FBFTLog.AddBlock(block)
|
|
|
|
// Leader sign the block hash itself
|
|
for i, key := range consensus.priKey {
|
|
if err := consensus.prepareBitmap.SetKey(key.Pub.Bytes, true); err != nil {
|
|
consensus.getLogger().Warn().Err(err).Msgf(
|
|
"[Announce] Leader prepareBitmap SetKey failed for key at index %d", i,
|
|
)
|
|
continue
|
|
}
|
|
|
|
if _, err := consensus.Decider.AddNewVote(
|
|
quorum.Prepare,
|
|
[]*bls.PublicKeyWrapper{key.Pub},
|
|
key.Pri.SignHash(consensus.blockHash[:]),
|
|
block.Hash(),
|
|
block.NumberU64(),
|
|
block.Header().ViewID().Uint64(),
|
|
); err != nil {
|
|
return
|
|
}
|
|
}
|
|
// Construct broadcast p2p message
|
|
if err := consensus.msgSender.SendWithRetry(
|
|
consensus.blockNum, msg_pb.MessageType_ANNOUNCE, []nodeconfig.GroupID{
|
|
nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID)),
|
|
}, p2p.ConstructMessage(msgToSend)); err != nil {
|
|
consensus.getLogger().Warn().
|
|
Str("groupID", string(nodeconfig.NewGroupIDByShardID(
|
|
nodeconfig.ShardID(consensus.ShardID),
|
|
))).
|
|
Msg("[Announce] Cannot send announce message")
|
|
} else {
|
|
consensus.getLogger().Info().
|
|
Str("blockHash", block.Hash().Hex()).
|
|
Uint64("blockNum", block.NumberU64()).
|
|
Msg("[Announce] Sent Announce Message!!")
|
|
}
|
|
|
|
consensus.switchPhase("Announce", FBFTPrepare)
|
|
}
|
|
|
|
func (consensus *Consensus) onPrepare(msg *msg_pb.Message) {
|
|
recvMsg, err := consensus.ParseFBFTMessage(msg)
|
|
if err != nil {
|
|
consensus.getLogger().Error().Err(err).Msg("[OnPrepare] Unparseable validator message")
|
|
return
|
|
}
|
|
|
|
// TODO(audit): make FBFT lookup using map instead of looping through all items.
|
|
if !consensus.FBFTLog.HasMatchingViewAnnounce(
|
|
consensus.blockNum, consensus.GetCurBlockViewID(), recvMsg.BlockHash,
|
|
) {
|
|
consensus.getLogger().Debug().
|
|
Uint64("MsgViewID", recvMsg.ViewID).
|
|
Uint64("MsgBlockNum", recvMsg.BlockNum).
|
|
Msg("[OnPrepare] No Matching Announce message")
|
|
}
|
|
|
|
//// Read - Start
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
|
|
if !consensus.isRightBlockNumAndViewID(recvMsg) {
|
|
return
|
|
}
|
|
|
|
blockHash := consensus.blockHash[:]
|
|
prepareBitmap := consensus.prepareBitmap
|
|
// proceed only when the message is not received before
|
|
for _, signer := range recvMsg.SenderPubkeys {
|
|
signed := consensus.Decider.ReadBallot(quorum.Prepare, signer.Bytes)
|
|
if signed != nil {
|
|
consensus.getLogger().Debug().
|
|
Str("validatorPubKey", signer.Bytes.Hex()).
|
|
Msg("[OnPrepare] Already Received prepare message from the validator")
|
|
return
|
|
}
|
|
}
|
|
|
|
if consensus.Decider.IsQuorumAchieved(quorum.Prepare) {
|
|
// already have enough signatures
|
|
consensus.getLogger().Debug().
|
|
Interface("validatorPubKeys", recvMsg.SenderPubkeys).
|
|
Msg("[OnPrepare] Received Additional Prepare Message")
|
|
return
|
|
}
|
|
signerCount := consensus.Decider.SignersCount(quorum.Prepare)
|
|
//// Read - End
|
|
|
|
// Check BLS signature for the multi-sig
|
|
prepareSig := recvMsg.Payload
|
|
var sign bls_core.Sign
|
|
err = sign.Deserialize(prepareSig)
|
|
if err != nil {
|
|
consensus.getLogger().Error().Err(err).
|
|
Msg("[OnPrepare] Failed to deserialize bls signature")
|
|
return
|
|
}
|
|
signerPubKey := &bls_core.PublicKey{}
|
|
if recvMsg.HasSingleSender() {
|
|
signerPubKey = recvMsg.SenderPubkeys[0].Object
|
|
} else {
|
|
for _, pubKey := range recvMsg.SenderPubkeys {
|
|
signerPubKey.Add(pubKey.Object)
|
|
}
|
|
}
|
|
if !sign.VerifyHash(signerPubKey, blockHash) {
|
|
consensus.getLogger().Error().Msg("[OnPrepare] Received invalid BLS signature")
|
|
return
|
|
}
|
|
|
|
consensus.getLogger().Debug().
|
|
Int64("NumReceivedSoFar", signerCount).
|
|
Int64("PublicKeys", consensus.Decider.ParticipantsCount()).
|
|
Msg("[OnPrepare] Received New Prepare Signature")
|
|
|
|
//// Write - Start
|
|
if _, err := consensus.Decider.AddNewVote(
|
|
quorum.Prepare, recvMsg.SenderPubkeys,
|
|
&sign, recvMsg.BlockHash,
|
|
recvMsg.BlockNum, recvMsg.ViewID,
|
|
); err != nil {
|
|
consensus.getLogger().Warn().Err(err).Msg("submit vote prepare failed")
|
|
return
|
|
}
|
|
// Set the bitmap indicating that this validator signed.
|
|
if err := prepareBitmap.SetKeysAtomic(recvMsg.SenderPubkeys, true); err != nil {
|
|
consensus.getLogger().Warn().Err(err).Msg("[OnPrepare] prepareBitmap.SetKey failed")
|
|
return
|
|
}
|
|
//// Write - End
|
|
|
|
//// Read - Start
|
|
if consensus.Decider.IsQuorumAchieved(quorum.Prepare) {
|
|
// NOTE Let it handle its own logs
|
|
if err := consensus.didReachPrepareQuorum(); err != nil {
|
|
return
|
|
}
|
|
consensus.switchPhase("onPrepare", FBFTCommit)
|
|
}
|
|
//// Read - End
|
|
}
|
|
|
|
func (consensus *Consensus) onCommit(msg *msg_pb.Message) {
|
|
recvMsg, err := consensus.ParseFBFTMessage(msg)
|
|
if err != nil {
|
|
consensus.getLogger().Debug().Err(err).Msg("[OnCommit] Parse pbft message failed")
|
|
return
|
|
}
|
|
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
//// Read - Start
|
|
if !consensus.isRightBlockNumAndViewID(recvMsg) {
|
|
return
|
|
}
|
|
commitBitmap := consensus.commitBitmap
|
|
|
|
// has to be called before verifying signature
|
|
quorumWasMet := consensus.Decider.IsQuorumAchieved(quorum.Commit)
|
|
|
|
signerCount := consensus.Decider.SignersCount(quorum.Commit)
|
|
//// Read - End
|
|
|
|
// Verify the signature on commitPayload is correct
|
|
logger := consensus.getLogger().With().
|
|
Str("recvMsg", recvMsg.String()).
|
|
Int64("numReceivedSoFar", signerCount).Logger()
|
|
|
|
logger.Debug().Msg("[OnCommit] Received new commit message")
|
|
var sign bls_core.Sign
|
|
if err := sign.Deserialize(recvMsg.Payload); err != nil {
|
|
logger.Debug().Msg("[OnCommit] Failed to deserialize bls signature")
|
|
return
|
|
}
|
|
|
|
// Must have the corresponding block to verify commit signature.
|
|
blockObj := consensus.FBFTLog.GetBlockByHash(recvMsg.BlockHash)
|
|
if blockObj == nil {
|
|
consensus.getLogger().Info().
|
|
Uint64("blockNum", recvMsg.BlockNum).
|
|
Uint64("viewID", recvMsg.ViewID).
|
|
Str("blockHash", recvMsg.BlockHash.Hex()).
|
|
Msg("[OnCommit] Failed finding a matching block for committed message")
|
|
return
|
|
}
|
|
commitPayload := signature.ConstructCommitPayload(consensus.Blockchain,
|
|
blockObj.Epoch(), blockObj.Hash(), blockObj.NumberU64(), blockObj.Header().ViewID().Uint64())
|
|
logger = logger.With().
|
|
Uint64("MsgViewID", recvMsg.ViewID).
|
|
Uint64("MsgBlockNum", recvMsg.BlockNum).
|
|
Logger()
|
|
|
|
signerPubKey := &bls_core.PublicKey{}
|
|
if recvMsg.HasSingleSender() {
|
|
signerPubKey = recvMsg.SenderPubkeys[0].Object
|
|
} else {
|
|
for _, pubKey := range recvMsg.SenderPubkeys {
|
|
signerPubKey.Add(pubKey.Object)
|
|
}
|
|
}
|
|
if !sign.VerifyHash(signerPubKey, commitPayload) {
|
|
logger.Error().Msg("[OnCommit] Cannot verify commit message")
|
|
return
|
|
}
|
|
|
|
//// Write - Start
|
|
// Check for potential double signing
|
|
if consensus.checkDoubleSign(recvMsg) {
|
|
return
|
|
}
|
|
if _, err := consensus.Decider.AddNewVote(
|
|
quorum.Commit, recvMsg.SenderPubkeys,
|
|
&sign, recvMsg.BlockHash,
|
|
recvMsg.BlockNum, recvMsg.ViewID,
|
|
); err != nil {
|
|
return
|
|
}
|
|
// Set the bitmap indicating that this validator signed.
|
|
if err := commitBitmap.SetKeysAtomic(recvMsg.SenderPubkeys, true); err != nil {
|
|
consensus.getLogger().Warn().Err(err).
|
|
Msg("[OnCommit] commitBitmap.SetKey failed")
|
|
return
|
|
}
|
|
//// Write - End
|
|
|
|
//// Read - Start
|
|
viewID := consensus.GetCurBlockViewID()
|
|
|
|
if consensus.Decider.IsAllSigsCollected() {
|
|
logger.Info().Msg("[OnCommit] 100% Enough commits received")
|
|
consensus.finalCommit()
|
|
|
|
consensus.msgSender.StopRetry(msg_pb.MessageType_PREPARED)
|
|
return
|
|
}
|
|
|
|
quorumIsMet := consensus.Decider.IsQuorumAchieved(quorum.Commit)
|
|
//// Read - End
|
|
|
|
if !quorumWasMet && quorumIsMet {
|
|
logger.Info().Msg("[OnCommit] 2/3 Enough commits received")
|
|
|
|
if !blockObj.IsLastBlockInEpoch() {
|
|
// only do early commit if it's not epoch block to avoid problems
|
|
consensus.preCommitAndPropose(blockObj)
|
|
}
|
|
|
|
consensus.getLogger().Info().Msg("[OnCommit] Starting Grace Period")
|
|
go func(viewID uint64) {
|
|
time.Sleep(1000 * time.Millisecond)
|
|
logger.Info().Msg("[OnCommit] Commit Grace Period Ended")
|
|
|
|
consensus.mutex.Lock()
|
|
defer consensus.mutex.Unlock()
|
|
if viewID == consensus.GetCurBlockViewID() {
|
|
consensus.finalCommit()
|
|
}
|
|
}(viewID)
|
|
|
|
consensus.msgSender.StopRetry(msg_pb.MessageType_PREPARED)
|
|
}
|
|
}
|
|
|