ceremonyclient/node/consensus/master/master_clock_consensus_engine.go
Cassie Heart ebb31fd792 v1.4.19
2024-06-08 11:32:45 +00:00

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package master
import (
"bytes"
"context"
gcrypto "crypto"
"crypto/rand"
"encoding/binary"
"encoding/hex"
"fmt"
"io"
"math/big"
"sync"
"time"
"github.com/iden3/go-iden3-crypto/poseidon"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/mr-tron/base58"
"github.com/multiformats/go-multiaddr"
mn "github.com/multiformats/go-multiaddr/net"
"github.com/pkg/errors"
"go.uber.org/zap"
"golang.org/x/crypto/sha3"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"source.quilibrium.com/quilibrium/monorepo/node/config"
"source.quilibrium.com/quilibrium/monorepo/node/consensus"
qtime "source.quilibrium.com/quilibrium/monorepo/node/consensus/time"
"source.quilibrium.com/quilibrium/monorepo/node/crypto"
"source.quilibrium.com/quilibrium/monorepo/node/execution"
"source.quilibrium.com/quilibrium/monorepo/node/keys"
"source.quilibrium.com/quilibrium/monorepo/node/p2p"
"source.quilibrium.com/quilibrium/monorepo/node/protobufs"
"source.quilibrium.com/quilibrium/monorepo/node/store"
)
type SyncStatusType int
const (
SyncStatusNotSyncing = iota
SyncStatusAwaitingResponse
SyncStatusSynchronizing
)
type MasterClockConsensusEngine struct {
*protobufs.UnimplementedValidationServiceServer
difficulty uint32
logger *zap.Logger
state consensus.EngineState
pubSub p2p.PubSub
keyManager keys.KeyManager
dataProver crypto.InclusionProver
frameProver crypto.FrameProver
lastFrameReceivedAt time.Time
frameChan chan *protobufs.ClockFrame
executionEngines map[string]execution.ExecutionEngine
filter []byte
input []byte
syncingStatus SyncStatusType
syncingTarget []byte
engineMx sync.Mutex
seenFramesMx sync.Mutex
historicFramesMx sync.Mutex
seenFrames []*protobufs.ClockFrame
historicFrames []*protobufs.ClockFrame
dataProofStore store.DataProofStore
clockStore store.ClockStore
masterTimeReel *qtime.MasterTimeReel
peerInfoManager p2p.PeerInfoManager
report *protobufs.SelfTestReport
frameValidationCh chan *protobufs.ClockFrame
bandwidthTestCh chan []byte
verifyTestCh chan verifyChallenge
currentReceivingSyncPeers int
currentReceivingSyncPeersMx sync.Mutex
engineConfig *config.EngineConfig
}
var _ consensus.ConsensusEngine = (*MasterClockConsensusEngine)(nil)
func NewMasterClockConsensusEngine(
engineConfig *config.EngineConfig,
logger *zap.Logger,
dataProofStore store.DataProofStore,
clockStore store.ClockStore,
keyManager keys.KeyManager,
pubSub p2p.PubSub,
dataProver crypto.InclusionProver,
frameProver crypto.FrameProver,
masterTimeReel *qtime.MasterTimeReel,
peerInfoManager p2p.PeerInfoManager,
report *protobufs.SelfTestReport,
) *MasterClockConsensusEngine {
if logger == nil {
panic(errors.New("logger is nil"))
}
if engineConfig == nil {
panic(errors.New("engine config is nil"))
}
if keyManager == nil {
panic(errors.New("key manager is nil"))
}
if pubSub == nil {
panic(errors.New("pubsub is nil"))
}
if dataProver == nil {
panic(errors.New("data prover is nil"))
}
if frameProver == nil {
panic(errors.New("frame prover is nil"))
}
if masterTimeReel == nil {
panic(errors.New("master time reel is nil"))
}
seed, err := hex.DecodeString(engineConfig.GenesisSeed)
if err != nil {
panic(errors.New("genesis seed is nil"))
}
e := &MasterClockConsensusEngine{
difficulty: 100000,
logger: logger,
state: consensus.EngineStateStopped,
keyManager: keyManager,
pubSub: pubSub,
executionEngines: map[string]execution.ExecutionEngine{},
frameChan: make(chan *protobufs.ClockFrame),
input: seed,
lastFrameReceivedAt: time.Time{},
syncingStatus: SyncStatusNotSyncing,
dataProofStore: dataProofStore,
clockStore: clockStore,
dataProver: dataProver,
frameProver: frameProver,
masterTimeReel: masterTimeReel,
peerInfoManager: peerInfoManager,
report: report,
frameValidationCh: make(chan *protobufs.ClockFrame),
bandwidthTestCh: make(chan []byte),
verifyTestCh: make(chan verifyChallenge),
engineConfig: engineConfig,
}
e.addPeerManifestReport(e.pubSub.GetPeerID(), report)
if e.filter, err = hex.DecodeString(engineConfig.Filter); err != nil {
panic(errors.Wrap(err, "could not parse filter value"))
}
e.getProvingKey(engineConfig)
if err := e.createCommunicationKeys(); err != nil {
panic(err)
}
logger.Info("constructing consensus engine")
return e
}
func (e *MasterClockConsensusEngine) Start() <-chan error {
e.logger.Info("starting master consensus engine")
e.state = consensus.EngineStateStarting
errChan := make(chan error)
e.peerInfoManager.Start()
e.state = consensus.EngineStateLoading
e.logger.Info("syncing last seen state")
err := e.masterTimeReel.Start()
if err != nil {
panic(err)
}
frame, err := e.masterTimeReel.Head()
if err != nil {
panic(err)
}
e.buildHistoricFrameCache(frame)
go func() {
for {
select {
case newFrame := <-e.frameValidationCh:
head, err := e.masterTimeReel.Head()
if err != nil {
panic(err)
}
if head.FrameNumber > newFrame.FrameNumber ||
newFrame.FrameNumber-head.FrameNumber > 128 {
e.logger.Debug(
"frame out of range, ignoring",
zap.Uint64("number", newFrame.FrameNumber),
)
continue
}
if err := e.frameProver.VerifyMasterClockFrame(newFrame); err != nil {
e.logger.Error("could not verify clock frame", zap.Error(err))
continue
}
e.masterTimeReel.Insert(newFrame, false)
case peerId := <-e.bandwidthTestCh:
e.performBandwidthTest(peerId)
case verifyTest := <-e.verifyTestCh:
e.performVerifyTest(verifyTest)
}
}
}()
e.logger.Info("subscribing to pubsub messages")
e.pubSub.Subscribe(e.filter, e.handleMessage, true)
e.state = consensus.EngineStateCollecting
go func() {
server := grpc.NewServer(
grpc.MaxSendMsgSize(600*1024*1024),
grpc.MaxRecvMsgSize(600*1024*1024),
)
protobufs.RegisterValidationServiceServer(server, e)
if err := e.pubSub.StartDirectChannelListener(
e.pubSub.GetPeerID(),
"validation",
server,
); err != nil {
panic(err)
}
}()
go func() {
for {
e.logger.Info(
"peers in store",
zap.Int("peer_store_count", e.pubSub.GetPeerstoreCount()),
zap.Int("network_peer_count", e.pubSub.GetNetworkPeersCount()),
)
time.Sleep(10 * time.Second)
}
}()
go func() {
// Let it sit until we at least have a few more peers inbound
time.Sleep(30 * time.Second)
parallelism := e.report.Cores - 1
if parallelism < 3 {
panic("invalid system configuration, minimum system configuration must be four cores")
}
var clients []protobufs.DataIPCServiceClient
if len(e.engineConfig.DataWorkerMultiaddrs) != 0 {
clients, err = e.createParallelDataClientsFromList()
if err != nil {
panic(err)
}
} else {
clients, err = e.createParallelDataClientsFromBaseMultiaddr(
int(parallelism),
)
if err != nil {
panic(err)
}
}
increment, _, previousOutput, err :=
e.dataProofStore.GetLatestDataTimeProof(e.pubSub.GetPeerID())
if err != nil && !errors.Is(err, store.ErrNotFound) {
panic(err)
}
prevIndex := -1
prevHashes := []byte{}
hashes := []byte{}
previousPreviousCommitment := []byte{}
previousCommitment := []byte{}
prevProofs := [][]byte{}
proofs := [][]byte{}
commitment := []byte{}
skipStore := false
if err != nil && errors.Is(err, store.ErrNotFound) {
e.logger.Info("no state found, starting from genesis")
increment = 0
rootFrame, err := e.clockStore.GetMasterClockFrame(e.filter, 0)
if err != nil {
panic(err)
}
previousCommitment = rootFrame.Output
} else {
e.logger.Info("state found", zap.Uint32("increment", increment))
_, _, previousCommitment, _ = GetOutputs(previousOutput)
skipStore = true
}
commitment = previousCommitment
input := []byte{}
input = append(input, e.pubSub.GetPeerID()...)
input = append(input, previousCommitment...)
proofs = e.PerformTimeProof(input, parallelism, increment, clients)
polySize := 128
if parallelism > 2048 {
polySize = 65536
} else if parallelism > 1024 {
polySize = 2048
} else if parallelism > 128 {
polySize = 1024
}
for {
head, err := e.masterTimeReel.Head()
if err != nil {
panic(err)
}
e.report.MasterHeadFrame = head.FrameNumber
prevHashes = hashes
previousPreviousCommitment = previousCommitment
previousCommitment = commitment
hashes, commitment, prevIndex = e.PerformDataCommitment(
proofs,
int(parallelism),
uint64(polySize),
)
// PoMW requires two forms of proofs time proofs of data, then execution
// proofs. In the multiproof case we also have a random selection portion
// of the execution proofs by issuing a challenge from the next proof,
// such that it generates a random choice of input from the prior. This
// allows recursive proof evaluation without requiring retention of all
// parallel proofs.
if len(prevProofs) != 0 {
if !skipStore {
e.report.Proof = []byte{}
e.report.Proof = binary.BigEndian.AppendUint32(
e.report.Proof,
uint32(prevIndex),
)
e.report.Increment = increment - 1
e.report.Challenge = previousPreviousCommitment
e.report.Proof = append(e.report.Proof, prevProofs[prevIndex]...)
p, err := e.dataProver.ProveRaw(
prevHashes,
prevIndex,
uint64(polySize),
)
if err != nil {
panic(err)
}
output := SerializeOutput(
uint32(prevIndex),
prevProofs,
previousCommitment,
p,
)
txn, err := e.dataProofStore.NewTransaction()
if err != nil {
panic(err)
}
e.logger.Info(
"storing proof",
zap.Uint32("increment", increment-1),
)
err = e.dataProofStore.PutDataTimeProof(
txn,
parallelism,
e.pubSub.GetPeerID(),
increment-1,
previousPreviousCommitment,
output,
)
if err != nil {
panic(err)
}
if err := txn.Commit(); err != nil {
panic(err)
}
e.logger.Info(
"broadcasting self-test info",
zap.Uint64("current_frame", e.report.MasterHeadFrame),
)
if err := e.publishMessage(e.filter, e.report); err != nil {
e.logger.Debug("error publishing message", zap.Error(err))
}
} else {
skipStore = false
}
}
increment++
input := []byte{}
input = append(input, e.pubSub.GetPeerID()...)
input = append(input, commitment...)
prevProofs = proofs
proofs = e.PerformTimeProof(input, parallelism, increment, clients)
}
}()
go func() {
newFrameCh := e.masterTimeReel.NewFrameCh()
for e.state < consensus.EngineStateStopping {
var err error
select {
case frame := <-newFrameCh:
currentFrame := frame
latestFrame := frame
if latestFrame, err = e.collect(currentFrame); err != nil {
e.logger.Error("could not collect", zap.Error(err))
latestFrame = currentFrame
continue
}
if latestFrame, err = e.prove(latestFrame); err != nil {
e.logger.Error("could not prove", zap.Error(err))
latestFrame = currentFrame
}
if err = e.publishProof(latestFrame); err != nil {
e.logger.Error("could not publish", zap.Error(err))
}
case <-time.After(20 * time.Second):
frame, err := e.masterTimeReel.Head()
if err != nil {
panic(err)
}
if frame, err = e.prove(frame); err != nil {
e.logger.Error("could not prove", zap.Error(err))
continue
}
if err = e.publishProof(frame); err != nil {
e.logger.Error("could not publish", zap.Error(err))
}
}
}
}()
go func() {
errChan <- nil
}()
return errChan
}
func SerializeOutput(
previousIndex uint32,
previousOutputs [][]byte,
kzgCommitment []byte,
kzgProof []byte,
) []byte {
serializedOutput := []byte{}
serializedOutput = binary.BigEndian.AppendUint32(
serializedOutput,
previousIndex,
)
serializedOutput = append(serializedOutput, previousOutputs[previousIndex]...)
serializedOutput = append(serializedOutput, kzgCommitment...)
serializedOutput = append(serializedOutput, kzgProof...)
return serializedOutput
}
func GetOutputs(output []byte) (
index uint32,
indexProof []byte,
kzgCommitment []byte,
kzgProof []byte,
) {
index = binary.BigEndian.Uint32(output[:4])
indexProof = output[4:520]
kzgCommitment = output[520:594]
kzgProof = output[594:668]
return index, indexProof, kzgCommitment, kzgProof
}
func (e *MasterClockConsensusEngine) PerformTimeProof(
challenge []byte,
parallelism uint32,
increment uint32,
clients []protobufs.DataIPCServiceClient,
) [][]byte {
proofs := make([][]byte, parallelism)
now := time.Now()
// Perform the VDFs:
wg := sync.WaitGroup{}
wg.Add(int(parallelism))
for i := uint32(0); i < parallelism; i++ {
i := i
go func() {
resp, err :=
clients[i].CalculateChallengeProof(
context.Background(),
&protobufs.ChallengeProofRequest{
Challenge: challenge,
Core: i,
Increment: increment,
},
)
if err != nil {
panic(err)
}
proofs[i] = resp.Output
wg.Done()
}()
}
wg.Wait()
since := time.Since(now)
e.logger.Info(
"completed duration proof",
zap.Uint32("increment", increment),
zap.Duration("time_taken", since),
)
return proofs
}
func (e *MasterClockConsensusEngine) PerformDataCommitment(
proofs [][]byte,
parallelism int,
polySize uint64,
) ([]byte, []byte, int) {
// Take the VDF outputs and generate some deterministic outputs to feed
// into a KZG commitment:
output := []byte{}
for i := 0; i < len(proofs); i++ {
h := sha3.Sum512(proofs[i])
output = append(output, h[:]...)
}
nextInput, err := e.dataProver.CommitRaw(output, polySize)
if err != nil {
panic(err)
}
inputHash := sha3.Sum256(nextInput)
inputHashBI := big.NewInt(0).SetBytes(inputHash[:])
prevIndex := int(inputHashBI.Mod(
inputHashBI,
big.NewInt(int64(parallelism)),
).Int64())
return output, nextInput, prevIndex
}
func (e *MasterClockConsensusEngine) createParallelDataClientsFromList() (
[]protobufs.DataIPCServiceClient,
error,
) {
parallelism := len(e.engineConfig.DataWorkerMultiaddrs)
e.logger.Info(
"connecting to data worker processes",
zap.Int("parallelism", parallelism),
)
clients := make([]protobufs.DataIPCServiceClient, parallelism)
for i := 0; i < parallelism; i++ {
ma, err := multiaddr.NewMultiaddr(e.engineConfig.DataWorkerMultiaddrs[i])
if err != nil {
panic(err)
}
_, addr, err := mn.DialArgs(ma)
if err != nil {
panic(err)
}
conn, err := grpc.Dial(
addr,
grpc.WithTransportCredentials(
insecure.NewCredentials(),
),
grpc.WithDefaultCallOptions(
grpc.MaxCallSendMsgSize(10*1024*1024),
grpc.MaxCallRecvMsgSize(10*1024*1024),
),
)
if err != nil {
panic(err)
}
clients[i] = protobufs.NewDataIPCServiceClient(conn)
}
e.logger.Info(
"connected to data worker processes",
zap.Int("parallelism", parallelism),
)
return clients, nil
}
func (e *MasterClockConsensusEngine) createParallelDataClientsFromBaseMultiaddr(
parallelism int,
) ([]protobufs.DataIPCServiceClient, error) {
e.logger.Info(
"connecting to data worker processes",
zap.Int("parallelism", parallelism),
)
if e.engineConfig.DataWorkerBaseListenMultiaddr == "" {
e.engineConfig.DataWorkerBaseListenMultiaddr = "/ip4/127.0.0.1/tcp/%d"
}
if e.engineConfig.DataWorkerBaseListenPort == 0 {
e.engineConfig.DataWorkerBaseListenPort = 40000
}
clients := make([]protobufs.DataIPCServiceClient, parallelism)
for i := 0; i < parallelism; i++ {
ma, err := multiaddr.NewMultiaddr(
fmt.Sprintf(
e.engineConfig.DataWorkerBaseListenMultiaddr,
int(e.engineConfig.DataWorkerBaseListenPort)+i,
),
)
if err != nil {
panic(err)
}
_, addr, err := mn.DialArgs(ma)
if err != nil {
panic(err)
}
conn, err := grpc.Dial(
addr,
grpc.WithTransportCredentials(
insecure.NewCredentials(),
),
grpc.WithDefaultCallOptions(
grpc.MaxCallSendMsgSize(10*1024*1024),
grpc.MaxCallRecvMsgSize(10*1024*1024),
),
)
if err != nil {
panic(err)
}
clients[i] = protobufs.NewDataIPCServiceClient(conn)
}
e.logger.Info(
"connected to data worker processes",
zap.Int("parallelism", parallelism),
)
return clients, nil
}
func (e *MasterClockConsensusEngine) PerformValidation(
ctx context.Context,
msg *protobufs.ValidationMessage,
) (*protobufs.ValidationMessage, error) {
return msg, nil
}
func (e *MasterClockConsensusEngine) Stop(force bool) <-chan error {
e.logger.Info("stopping consensus engine")
e.state = consensus.EngineStateStopping
errChan := make(chan error)
wg := sync.WaitGroup{}
wg.Add(len(e.executionEngines))
for name := range e.executionEngines {
name := name
go func(name string) {
frame, err := e.masterTimeReel.Head()
if err != nil {
errChan <- err
return
}
err = <-e.UnregisterExecutor(name, frame.FrameNumber, force)
if err != nil {
errChan <- err
}
wg.Done()
}(name)
}
e.logger.Info("waiting for execution engines to stop")
wg.Wait()
e.logger.Info("execution engines stopped")
e.masterTimeReel.Stop()
e.peerInfoManager.Stop()
e.state = consensus.EngineStateStopped
go func() {
errChan <- nil
}()
return errChan
}
type verifyChallenge struct {
peerID []byte
challenge []byte
increment uint32
cores uint32
proof []byte
}
func (e *MasterClockConsensusEngine) performVerifyTest(
challenge verifyChallenge,
) {
if !e.frameProver.VerifyChallengeProof(
challenge.challenge,
challenge.increment,
binary.BigEndian.Uint32(challenge.proof[:4]),
challenge.proof[4:],
) {
e.logger.Warn(
"received invalid proof from peer",
zap.String("peer_id", peer.ID(challenge.peerID).String()),
)
e.pubSub.SetPeerScore(challenge.peerID, -1000)
} else {
e.logger.Debug(
"received valid proof from peer",
zap.String("peer_id", peer.ID(challenge.peerID).String()),
)
info := e.peerInfoManager.GetPeerInfo(challenge.peerID)
info.LastSeen = time.Now().UnixMilli()
}
}
func (e *MasterClockConsensusEngine) performBandwidthTest(peerID []byte) {
result := e.pubSub.GetMultiaddrOfPeer(peerID)
if result == "" {
return
}
cc, err := e.pubSub.GetDirectChannel(peerID, "validation")
if err != nil {
e.logger.Debug(
"could not connect to peer for validation",
zap.String("peer_id", base58.Encode(peerID)),
)
// tag: dusk nuke this peer for now
e.pubSub.SetPeerScore(peerID, -1000)
return
}
client := protobufs.NewValidationServiceClient(cc)
verification := make([]byte, 1048576)
rand.Read(verification)
start := time.Now().UnixMilli()
validation, err := client.PerformValidation(
context.Background(),
&protobufs.ValidationMessage{
Validation: verification,
},
)
end := time.Now().UnixMilli()
if err != nil && err != io.EOF {
cc.Close()
e.logger.Debug(
"peer returned error",
zap.String("peer_id", base58.Encode(peerID)),
zap.Error(err),
)
// tag: dusk nuke this peer for now
e.pubSub.SetPeerScore(peerID, -1000)
return
}
cc.Close()
if !bytes.Equal(verification, validation.Validation) {
e.logger.Debug(
"peer provided invalid verification",
zap.String("peer_id", base58.Encode(peerID)),
)
// tag: dusk nuke this peer for now
e.pubSub.SetPeerScore(peerID, -1000)
return
}
if end-start > 2000 {
e.logger.Debug(
"peer has slow bandwidth, scoring out",
zap.String("peer_id", base58.Encode(peerID)),
)
// tag: dusk nuke this peer for now
e.pubSub.SetPeerScore(peerID, -1000)
return
}
duration := end - start
bandwidth := uint64(1048576*1000) / uint64(duration)
manifest := e.peerInfoManager.GetPeerInfo(peerID)
if manifest == nil {
return
}
peerManifest := &p2p.PeerManifest{
PeerId: peerID,
Difficulty: manifest.Difficulty,
DifficultyMetric: manifest.DifficultyMetric,
Commit_16Metric: manifest.Commit_16Metric,
Commit_128Metric: manifest.Commit_128Metric,
Commit_1024Metric: manifest.Commit_1024Metric,
Commit_65536Metric: manifest.Commit_65536Metric,
Proof_16Metric: manifest.Proof_16Metric,
Proof_128Metric: manifest.Proof_128Metric,
Proof_1024Metric: manifest.Proof_1024Metric,
Proof_65536Metric: manifest.Proof_65536Metric,
Cores: manifest.Cores,
Memory: manifest.Memory,
Storage: manifest.Storage,
Capabilities: []p2p.Capability{},
MasterHeadFrame: manifest.MasterHeadFrame,
Bandwidth: bandwidth,
}
for _, capability := range manifest.Capabilities {
metadata := make([]byte, len(capability.AdditionalMetadata))
copy(metadata[:], capability.AdditionalMetadata[:])
peerManifest.Capabilities = append(
peerManifest.Capabilities,
p2p.Capability{
ProtocolIdentifier: capability.ProtocolIdentifier,
AdditionalMetadata: metadata,
},
)
}
e.peerInfoManager.AddPeerInfo(manifest)
}
func (
e *MasterClockConsensusEngine,
) GetPeerManifests() *protobufs.PeerManifestsResponse {
response := &protobufs.PeerManifestsResponse{
PeerManifests: []*protobufs.PeerManifest{},
}
peerMap := e.peerInfoManager.GetPeerMap()
for peerId, peerManifest := range peerMap {
peerId := peerId
peerManifest := peerManifest
manifest := &protobufs.PeerManifest{
PeerId: []byte(peerId),
Difficulty: peerManifest.Difficulty,
DifficultyMetric: peerManifest.DifficultyMetric,
Commit_16Metric: peerManifest.Commit_16Metric,
Commit_128Metric: peerManifest.Commit_128Metric,
Commit_1024Metric: peerManifest.Commit_1024Metric,
Commit_65536Metric: peerManifest.Commit_65536Metric,
Proof_16Metric: peerManifest.Proof_16Metric,
Proof_128Metric: peerManifest.Proof_128Metric,
Proof_1024Metric: peerManifest.Proof_1024Metric,
Proof_65536Metric: peerManifest.Proof_65536Metric,
Cores: peerManifest.Cores,
Memory: new(big.Int).SetBytes(peerManifest.Memory).Bytes(),
Storage: new(big.Int).SetBytes(peerManifest.Storage).Bytes(),
MasterHeadFrame: peerManifest.MasterHeadFrame,
LastSeen: peerManifest.LastSeen,
}
for _, capability := range peerManifest.Capabilities {
metadata := make([]byte, len(capability.AdditionalMetadata))
copy(metadata[:], capability.AdditionalMetadata[:])
manifest.Capabilities = append(
manifest.Capabilities,
&protobufs.Capability{
ProtocolIdentifier: capability.ProtocolIdentifier,
AdditionalMetadata: metadata,
},
)
}
response.PeerManifests = append(
response.PeerManifests,
manifest,
)
}
return response
}
func (e *MasterClockConsensusEngine) GetDifficulty() uint32 {
return e.difficulty
}
func (e *MasterClockConsensusEngine) GetFrame() *protobufs.ClockFrame {
frame, err := e.masterTimeReel.Head()
if err != nil {
panic(err)
}
return frame
}
func (e *MasterClockConsensusEngine) GetState() consensus.EngineState {
return e.state
}
func (
e *MasterClockConsensusEngine,
) GetFrameChannel() <-chan *protobufs.ClockFrame {
return e.frameChan
}
func (e *MasterClockConsensusEngine) buildHistoricFrameCache(
latestFrame *protobufs.ClockFrame,
) {
e.historicFrames = []*protobufs.ClockFrame{}
if latestFrame.FrameNumber != 0 {
min := uint64(0)
if latestFrame.FrameNumber-255 > min && latestFrame.FrameNumber > 255 {
min = latestFrame.FrameNumber - 255
}
iter, err := e.clockStore.RangeMasterClockFrames(
e.filter,
min,
latestFrame.FrameNumber-1,
)
if err != nil {
panic(err)
}
for iter.First(); iter.Valid(); iter.Next() {
frame, err := iter.Value()
if err != nil {
panic(err)
}
e.historicFrames = append(e.historicFrames, frame)
}
if err = iter.Close(); err != nil {
panic(err)
}
}
e.historicFrames = append(e.historicFrames, latestFrame)
}
func (e *MasterClockConsensusEngine) addPeerManifestReport(
peerId []byte,
report *protobufs.SelfTestReport,
) {
manifest := &p2p.PeerManifest{
PeerId: peerId,
Difficulty: report.Difficulty,
DifficultyMetric: report.DifficultyMetric,
Commit_16Metric: report.Commit_16Metric,
Commit_128Metric: report.Commit_128Metric,
Commit_1024Metric: report.Commit_1024Metric,
Commit_65536Metric: report.Commit_65536Metric,
Proof_16Metric: report.Proof_16Metric,
Proof_128Metric: report.Proof_128Metric,
Proof_1024Metric: report.Proof_1024Metric,
Proof_65536Metric: report.Proof_65536Metric,
Cores: report.Cores,
Memory: report.Memory,
Storage: report.Storage,
Capabilities: []p2p.Capability{},
MasterHeadFrame: report.MasterHeadFrame,
LastSeen: time.Now().UnixMilli(),
}
for _, capability := range manifest.Capabilities {
metadata := make([]byte, len(capability.AdditionalMetadata))
copy(metadata[:], capability.AdditionalMetadata[:])
manifest.Capabilities = append(
manifest.Capabilities,
p2p.Capability{
ProtocolIdentifier: capability.ProtocolIdentifier,
AdditionalMetadata: metadata,
},
)
}
e.peerInfoManager.AddPeerInfo(manifest)
}
func (e *MasterClockConsensusEngine) getProvingKey(
engineConfig *config.EngineConfig,
) (gcrypto.Signer, keys.KeyType, []byte, []byte) {
provingKey, err := e.keyManager.GetSigningKey(engineConfig.ProvingKeyId)
if errors.Is(err, keys.KeyNotFoundErr) {
e.logger.Info("could not get proving key, generating")
provingKey, err = e.keyManager.CreateSigningKey(
engineConfig.ProvingKeyId,
keys.KeyTypeEd448,
)
}
if err != nil {
e.logger.Error("could not get proving key", zap.Error(err))
panic(err)
}
rawKey, err := e.keyManager.GetRawKey(engineConfig.ProvingKeyId)
if err != nil {
e.logger.Error("could not get proving key type", zap.Error(err))
panic(err)
}
provingKeyType := rawKey.Type
h, err := poseidon.HashBytes(rawKey.PublicKey)
if err != nil {
e.logger.Error("could not hash proving key", zap.Error(err))
panic(err)
}
provingKeyAddress := h.Bytes()
provingKeyAddress = append(
make([]byte, 32-len(provingKeyAddress)),
provingKeyAddress...,
)
return provingKey, provingKeyType, rawKey.PublicKey, provingKeyAddress
}
func (e *MasterClockConsensusEngine) createCommunicationKeys() error {
_, err := e.keyManager.GetAgreementKey("q-ratchet-idk")
if err != nil {
if errors.Is(err, keys.KeyNotFoundErr) {
_, err = e.keyManager.CreateAgreementKey(
"q-ratchet-idk",
keys.KeyTypeX448,
)
if err != nil {
return errors.Wrap(err, "create communication keys")
}
} else {
return errors.Wrap(err, "create communication keys")
}
}
_, err = e.keyManager.GetAgreementKey("q-ratchet-spk")
if err != nil {
if errors.Is(err, keys.KeyNotFoundErr) {
_, err = e.keyManager.CreateAgreementKey(
"q-ratchet-spk",
keys.KeyTypeX448,
)
if err != nil {
return errors.Wrap(err, "create communication keys")
}
} else {
return errors.Wrap(err, "create communication keys")
}
}
return nil
}