package master import ( "bytes" "context" "encoding/binary" "strings" "time" "github.com/iden3/go-iden3-crypto/poseidon" "github.com/libp2p/go-libp2p/core/peer" "github.com/mr-tron/base58" "github.com/pkg/errors" "go.uber.org/zap" "google.golang.org/protobuf/proto" "google.golang.org/protobuf/types/known/anypb" "source.quilibrium.com/quilibrium/monorepo/go-libp2p-blossomsub/pb" "source.quilibrium.com/quilibrium/monorepo/node/consensus" "source.quilibrium.com/quilibrium/monorepo/node/protobufs" ) func (e *MasterClockConsensusEngine) handleMessage(message *pb.Message) error { e.logger.Debug( "received message", zap.Binary("data", message.Data), zap.Binary("from", message.From), zap.Binary("signature", message.Signature), ) msg := &protobufs.Message{} if err := proto.Unmarshal(message.Data, msg); err != nil { return errors.Wrap(err, "handle message") } any := &anypb.Any{} if err := proto.Unmarshal(msg.Payload, any); err != nil { return errors.Wrap(err, "handle message") } switch any.TypeUrl { case protobufs.ClockFrameType: if err := e.handleClockFrameData( message.From, any, ); err != nil { return errors.Wrap(err, "handle message") } return nil case protobufs.SelfTestReportType: if err := e.handleSelfTestReport( message.From, any, ); err != nil { return errors.Wrap(err, "handle message") } return nil } return errors.Wrap(errors.New("invalid message"), "handle message") } func (e *MasterClockConsensusEngine) handleClockFrameData( peerID []byte, any *anypb.Any, ) error { frame := &protobufs.ClockFrame{} if err := any.UnmarshalTo(frame); err != nil { return errors.Wrap(err, "handle clock frame data") } head, err := e.masterTimeReel.Head() if err != nil { panic(err) } if frame.FrameNumber < head.FrameNumber { return nil } if e.difficulty != frame.Difficulty { e.logger.Debug( "frame difficulty mismatched", zap.Uint32("difficulty", frame.Difficulty), ) return errors.Wrap( errors.New("frame difficulty"), "handle clock frame data", ) } e.logger.Debug( "got clock frame", zap.Binary("sender", peerID), zap.Binary("filter", frame.Filter), zap.Uint64("frame_number", frame.FrameNumber), zap.Int("proof_count", len(frame.AggregateProofs)), ) go func() { select { case e.frameValidationCh <- frame: default: e.logger.Debug( "dropped frame due to overwhelmed queue", zap.Binary("sender", peerID), zap.Binary("filter", frame.Filter), zap.Uint64("frame_number", frame.FrameNumber), zap.Int("proof_count", len(frame.AggregateProofs)), ) } }() return nil } func (e *MasterClockConsensusEngine) handleSelfTestReport( peerID []byte, any *anypb.Any, ) error { report := &protobufs.SelfTestReport{} if err := any.UnmarshalTo(report); err != nil { return errors.Wrap(err, "handle self test report") } if bytes.Equal(peerID, e.pubSub.GetPeerID()) { info := e.peerInfoManager.GetPeerInfo(peerID) info.LastSeen = time.Now().UnixMilli() info.DifficultyMetric = report.DifficultyMetric info.MasterHeadFrame = report.MasterHeadFrame return nil } // minimum proof size is one timestamp, one vdf proof, must match one fewer // than core count if len(report.Proof) < 516+8 || ((len(report.Proof)-8)/516) != int(report.Cores-1) { e.logger.Warn( "received invalid proof from peer", zap.String("peer_id", peer.ID(peerID).String()), zap.Int("proof_size", len(report.Proof)), zap.Uint32("cores", report.Cores), ) e.pubSub.SetPeerScore(peerID, -1000) return errors.Wrap(errors.New("invalid report"), "handle self test report") } e.logger.Debug( "received proof from peer", zap.String("peer_id", peer.ID(peerID).String()), ) info := e.peerInfoManager.GetPeerInfo(peerID) if info != nil { if (time.Now().UnixMilli() - info.LastSeen) < (270 * 1000) { return nil } info.DifficultyMetric = report.DifficultyMetric info.MasterHeadFrame = report.MasterHeadFrame if info.Bandwidth <= 1048576 { go func() { ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Minute) defer cancel() ch := e.pubSub.GetMultiaddrOfPeerStream(ctx, peerID) select { case <-ch: go func() { e.bandwidthTestCh <- peerID }() case <-ctx.Done(): } }() } proof := report.Proof timestamp := binary.BigEndian.Uint64(proof[:8]) proof = proof[8:] // Ignore outdated reports, give 3 minutes + proof time for propagation // delay if int64(timestamp) < (time.Now().UnixMilli() - (480 * 1000)) { return nil } challenge := binary.BigEndian.AppendUint64([]byte{}, report.MasterHeadFrame) challenge = append(challenge, peerID...) proofs := make([][]byte, (len(report.Proof)-8)/516) for i := 0; i < len(proofs); i++ { proofs[i] = proof[i*516 : (i+1)*516] } go func() { e.verifyTestCh <- verifyChallenge{ peerID: peerID, challenge: challenge, timestamp: int64(timestamp), difficultyMetric: report.DifficultyMetric, proofs: proofs, } }() return nil } e.addPeerManifestReport(peerID, report) memory := binary.BigEndian.Uint64(report.Memory) e.logger.Debug( "received self test report", zap.String("peer_id", base58.Encode(peerID)), zap.Uint32("difficulty", report.Difficulty), zap.Int64("difficulty_metric", report.DifficultyMetric), zap.Int64("commit_16_metric", report.Commit_16Metric), zap.Int64("commit_128_metric", report.Commit_128Metric), zap.Int64("commit_1024_metric", report.Commit_1024Metric), zap.Int64("commit_65536_metric", report.Commit_65536Metric), zap.Int64("proof_16_metric", report.Proof_16Metric), zap.Int64("proof_128_metric", report.Proof_128Metric), zap.Int64("proof_1024_metric", report.Proof_1024Metric), zap.Int64("proof_65536_metric", report.Proof_65536Metric), zap.Uint32("cores", report.Cores), zap.Uint64("memory", memory), zap.Uint64("storage", binary.BigEndian.Uint64(report.Storage)), ) if report.Cores < 3 || memory < 16000000000 { e.logger.Debug( "peer reported invalid configuration", zap.String("peer_id", base58.Encode(peerID)), zap.Uint32("difficulty", report.Difficulty), zap.Int64("difficulty_metric", report.DifficultyMetric), zap.Int64("commit_16_metric", report.Commit_16Metric), zap.Int64("commit_128_metric", report.Commit_128Metric), zap.Int64("commit_1024_metric", report.Commit_1024Metric), zap.Int64("commit_65536_metric", report.Commit_65536Metric), zap.Int64("proof_16_metric", report.Proof_16Metric), zap.Int64("proof_128_metric", report.Proof_128Metric), zap.Int64("proof_1024_metric", report.Proof_1024Metric), zap.Int64("proof_65536_metric", report.Proof_65536Metric), zap.Uint32("cores", report.Cores), zap.Uint64("memory", memory), zap.Uint64("storage", binary.BigEndian.Uint64(report.Storage)), ) // tag: dusk – nuke this peer for now e.pubSub.SetPeerScore(peerID, -1000) return nil } go func() { ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Minute) defer cancel() ch := e.pubSub.GetMultiaddrOfPeerStream(ctx, peerID) select { case <-ch: go func() { e.bandwidthTestCh <- peerID }() case <-ctx.Done(): } }() return nil } // This does not publish any longer, frames strictly are picked up from sync func (e *MasterClockConsensusEngine) publishProof( frame *protobufs.ClockFrame, ) error { e.logger.Debug( "publishing frame", zap.Uint64("frame_number", frame.FrameNumber), ) e.masterTimeReel.Insert(frame, false) e.state = consensus.EngineStateCollecting return nil } func (e *MasterClockConsensusEngine) publishMessage( filter []byte, message proto.Message, ) error { any := &anypb.Any{} if err := any.MarshalFrom(message); err != nil { return errors.Wrap(err, "publish message") } // annoying protobuf any hack any.TypeUrl = strings.Replace( any.TypeUrl, "type.googleapis.com", "types.quilibrium.com", 1, ) payload, err := proto.Marshal(any) if err != nil { return errors.Wrap(err, "publish message") } h, err := poseidon.HashBytes(payload) if err != nil { return errors.Wrap(err, "publish message") } msg := &protobufs.Message{ Hash: h.Bytes(), Address: e.filter, Payload: payload, } data, err := proto.Marshal(msg) if err != nil { return errors.Wrap(err, "publish message") } return e.pubSub.PublishToBitmask(filter, data) }