TUN-5261: Collect QUIC metrics about RTT, packets and bytes transfered and log events at tracing level

2025-07-28 04:59:58 +00:00 · 2021-10-15 12:05:54 +01:00
parent 958650be1f
commit ff7c48568c
61 changed files with 12360 additions and 13 deletions
--- a/vendor/github.com/lucas-clemente/quic-go/qlog/event.go
+++ b/vendor/github.com/lucas-clemente/quic-go/qlog/event.go
@@ -0,0 +1,529 @@
+package qlog
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/lucas-clemente/quic-go/internal/utils"
+	"github.com/lucas-clemente/quic-go/logging"
+
+	"github.com/francoispqt/gojay"
+)
+
+func milliseconds(dur time.Duration) float64 { return float64(dur.Nanoseconds()) / 1e6 }
+
+type eventDetails interface {
+	Category() category
+	Name() string
+	gojay.MarshalerJSONObject
+}
+
+type event struct {
+	RelativeTime time.Duration
+	eventDetails
+}
+
+var _ gojay.MarshalerJSONObject = event{}
+
+func (e event) IsNil() bool { return false }
+func (e event) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.Float64Key("time", milliseconds(e.RelativeTime))
+	enc.StringKey("name", e.Category().String()+":"+e.Name())
+	enc.ObjectKey("data", e.eventDetails)
+}
+
+type versions []versionNumber
+
+func (v versions) IsNil() bool { return false }
+func (v versions) MarshalJSONArray(enc *gojay.Encoder) {
+	for _, e := range v {
+		enc.AddString(e.String())
+	}
+}
+
+type rawInfo struct {
+	Length        logging.ByteCount // full packet length, including header and AEAD authentication tag
+	PayloadLength logging.ByteCount // length of the packet payload, excluding AEAD tag
+}
+
+func (i rawInfo) IsNil() bool { return false }
+func (i rawInfo) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.Uint64Key("length", uint64(i.Length))
+	enc.Uint64KeyOmitEmpty("payload_length", uint64(i.PayloadLength))
+}
+
+type eventConnectionStarted struct {
+	SrcAddr  *net.UDPAddr
+	DestAddr *net.UDPAddr
+
+	SrcConnectionID  protocol.ConnectionID
+	DestConnectionID protocol.ConnectionID
+}
+
+var _ eventDetails = &eventConnectionStarted{}
+
+func (e eventConnectionStarted) Category() category { return categoryTransport }
+func (e eventConnectionStarted) Name() string       { return "connection_started" }
+func (e eventConnectionStarted) IsNil() bool        { return false }
+
+func (e eventConnectionStarted) MarshalJSONObject(enc *gojay.Encoder) {
+	if utils.IsIPv4(e.SrcAddr.IP) {
+		enc.StringKey("ip_version", "ipv4")
+	} else {
+		enc.StringKey("ip_version", "ipv6")
+	}
+	enc.StringKey("src_ip", e.SrcAddr.IP.String())
+	enc.IntKey("src_port", e.SrcAddr.Port)
+	enc.StringKey("dst_ip", e.DestAddr.IP.String())
+	enc.IntKey("dst_port", e.DestAddr.Port)
+	enc.StringKey("src_cid", connectionID(e.SrcConnectionID).String())
+	enc.StringKey("dst_cid", connectionID(e.DestConnectionID).String())
+}
+
+type eventVersionNegotiated struct {
+	clientVersions, serverVersions []versionNumber
+	chosenVersion                  versionNumber
+}
+
+func (e eventVersionNegotiated) Category() category { return categoryTransport }
+func (e eventVersionNegotiated) Name() string       { return "version_information" }
+func (e eventVersionNegotiated) IsNil() bool        { return false }
+
+func (e eventVersionNegotiated) MarshalJSONObject(enc *gojay.Encoder) {
+	if len(e.clientVersions) > 0 {
+		enc.ArrayKey("client_versions", versions(e.clientVersions))
+	}
+	if len(e.serverVersions) > 0 {
+		enc.ArrayKey("server_versions", versions(e.serverVersions))
+	}
+	enc.StringKey("chosen_version", e.chosenVersion.String())
+}
+
+type eventConnectionClosed struct {
+	e error
+}
+
+func (e eventConnectionClosed) Category() category { return categoryTransport }
+func (e eventConnectionClosed) Name() string       { return "connection_closed" }
+func (e eventConnectionClosed) IsNil() bool        { return false }
+
+func (e eventConnectionClosed) MarshalJSONObject(enc *gojay.Encoder) {
+	var (
+		statelessResetErr     *quic.StatelessResetError
+		handshakeTimeoutErr   *quic.HandshakeTimeoutError
+		idleTimeoutErr        *quic.IdleTimeoutError
+		applicationErr        *quic.ApplicationError
+		transportErr          *quic.TransportError
+		versionNegotiationErr *quic.VersionNegotiationError
+	)
+	switch {
+	case errors.As(e.e, &statelessResetErr):
+		enc.StringKey("owner", ownerRemote.String())
+		enc.StringKey("trigger", "stateless_reset")
+		enc.StringKey("stateless_reset_token", fmt.Sprintf("%x", statelessResetErr.Token))
+	case errors.As(e.e, &handshakeTimeoutErr):
+		enc.StringKey("owner", ownerLocal.String())
+		enc.StringKey("trigger", "handshake_timeout")
+	case errors.As(e.e, &idleTimeoutErr):
+		enc.StringKey("owner", ownerLocal.String())
+		enc.StringKey("trigger", "idle_timeout")
+	case errors.As(e.e, &applicationErr):
+		owner := ownerLocal
+		if applicationErr.Remote {
+			owner = ownerRemote
+		}
+		enc.StringKey("owner", owner.String())
+		enc.Uint64Key("application_code", uint64(applicationErr.ErrorCode))
+		enc.StringKey("reason", applicationErr.ErrorMessage)
+	case errors.As(e.e, &transportErr):
+		owner := ownerLocal
+		if transportErr.Remote {
+			owner = ownerRemote
+		}
+		enc.StringKey("owner", owner.String())
+		enc.StringKey("connection_code", transportError(transportErr.ErrorCode).String())
+		enc.StringKey("reason", transportErr.ErrorMessage)
+	case errors.As(e.e, &versionNegotiationErr):
+		enc.StringKey("owner", ownerRemote.String())
+		enc.StringKey("trigger", "version_negotiation")
+	}
+}
+
+type eventPacketSent struct {
+	Header        packetHeader
+	Length        logging.ByteCount
+	PayloadLength logging.ByteCount
+	Frames        frames
+	IsCoalesced   bool
+	Trigger       string
+}
+
+var _ eventDetails = eventPacketSent{}
+
+func (e eventPacketSent) Category() category { return categoryTransport }
+func (e eventPacketSent) Name() string       { return "packet_sent" }
+func (e eventPacketSent) IsNil() bool        { return false }
+
+func (e eventPacketSent) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("header", e.Header)
+	enc.ObjectKey("raw", rawInfo{Length: e.Length, PayloadLength: e.PayloadLength})
+	enc.ArrayKeyOmitEmpty("frames", e.Frames)
+	enc.BoolKeyOmitEmpty("is_coalesced", e.IsCoalesced)
+	enc.StringKeyOmitEmpty("trigger", e.Trigger)
+}
+
+type eventPacketReceived struct {
+	Header        packetHeader
+	Length        logging.ByteCount
+	PayloadLength logging.ByteCount
+	Frames        frames
+	IsCoalesced   bool
+	Trigger       string
+}
+
+var _ eventDetails = eventPacketReceived{}
+
+func (e eventPacketReceived) Category() category { return categoryTransport }
+func (e eventPacketReceived) Name() string       { return "packet_received" }
+func (e eventPacketReceived) IsNil() bool        { return false }
+
+func (e eventPacketReceived) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("header", e.Header)
+	enc.ObjectKey("raw", rawInfo{Length: e.Length, PayloadLength: e.PayloadLength})
+	enc.ArrayKeyOmitEmpty("frames", e.Frames)
+	enc.BoolKeyOmitEmpty("is_coalesced", e.IsCoalesced)
+	enc.StringKeyOmitEmpty("trigger", e.Trigger)
+}
+
+type eventRetryReceived struct {
+	Header packetHeader
+}
+
+func (e eventRetryReceived) Category() category { return categoryTransport }
+func (e eventRetryReceived) Name() string       { return "packet_received" }
+func (e eventRetryReceived) IsNil() bool        { return false }
+
+func (e eventRetryReceived) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("header", e.Header)
+}
+
+type eventVersionNegotiationReceived struct {
+	Header            packetHeader
+	SupportedVersions []versionNumber
+}
+
+func (e eventVersionNegotiationReceived) Category() category { return categoryTransport }
+func (e eventVersionNegotiationReceived) Name() string       { return "packet_received" }
+func (e eventVersionNegotiationReceived) IsNil() bool        { return false }
+
+func (e eventVersionNegotiationReceived) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("header", e.Header)
+	enc.ArrayKey("supported_versions", versions(e.SupportedVersions))
+}
+
+type eventPacketBuffered struct {
+	PacketType logging.PacketType
+}
+
+func (e eventPacketBuffered) Category() category { return categoryTransport }
+func (e eventPacketBuffered) Name() string       { return "packet_buffered" }
+func (e eventPacketBuffered) IsNil() bool        { return false }
+
+func (e eventPacketBuffered) MarshalJSONObject(enc *gojay.Encoder) {
+	//nolint:gosimple
+	enc.ObjectKey("header", packetHeaderWithType{PacketType: e.PacketType})
+	enc.StringKey("trigger", "keys_unavailable")
+}
+
+type eventPacketDropped struct {
+	PacketType logging.PacketType
+	PacketSize protocol.ByteCount
+	Trigger    packetDropReason
+}
+
+func (e eventPacketDropped) Category() category { return categoryTransport }
+func (e eventPacketDropped) Name() string       { return "packet_dropped" }
+func (e eventPacketDropped) IsNil() bool        { return false }
+
+func (e eventPacketDropped) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("header", packetHeaderWithType{PacketType: e.PacketType})
+	enc.ObjectKey("raw", rawInfo{Length: e.PacketSize})
+	enc.StringKey("trigger", e.Trigger.String())
+}
+
+type metrics struct {
+	MinRTT      time.Duration
+	SmoothedRTT time.Duration
+	LatestRTT   time.Duration
+	RTTVariance time.Duration
+
+	CongestionWindow protocol.ByteCount
+	BytesInFlight    protocol.ByteCount
+	PacketsInFlight  int
+}
+
+type eventMetricsUpdated struct {
+	Last    *metrics
+	Current *metrics
+}
+
+func (e eventMetricsUpdated) Category() category { return categoryRecovery }
+func (e eventMetricsUpdated) Name() string       { return "metrics_updated" }
+func (e eventMetricsUpdated) IsNil() bool        { return false }
+
+func (e eventMetricsUpdated) MarshalJSONObject(enc *gojay.Encoder) {
+	if e.Last == nil || e.Last.MinRTT != e.Current.MinRTT {
+		enc.FloatKey("min_rtt", milliseconds(e.Current.MinRTT))
+	}
+	if e.Last == nil || e.Last.SmoothedRTT != e.Current.SmoothedRTT {
+		enc.FloatKey("smoothed_rtt", milliseconds(e.Current.SmoothedRTT))
+	}
+	if e.Last == nil || e.Last.LatestRTT != e.Current.LatestRTT {
+		enc.FloatKey("latest_rtt", milliseconds(e.Current.LatestRTT))
+	}
+	if e.Last == nil || e.Last.RTTVariance != e.Current.RTTVariance {
+		enc.FloatKey("rtt_variance", milliseconds(e.Current.RTTVariance))
+	}
+
+	if e.Last == nil || e.Last.CongestionWindow != e.Current.CongestionWindow {
+		enc.Uint64Key("congestion_window", uint64(e.Current.CongestionWindow))
+	}
+	if e.Last == nil || e.Last.BytesInFlight != e.Current.BytesInFlight {
+		enc.Uint64Key("bytes_in_flight", uint64(e.Current.BytesInFlight))
+	}
+	if e.Last == nil || e.Last.PacketsInFlight != e.Current.PacketsInFlight {
+		enc.Uint64KeyOmitEmpty("packets_in_flight", uint64(e.Current.PacketsInFlight))
+	}
+}
+
+type eventUpdatedPTO struct {
+	Value uint32
+}
+
+func (e eventUpdatedPTO) Category() category { return categoryRecovery }
+func (e eventUpdatedPTO) Name() string       { return "metrics_updated" }
+func (e eventUpdatedPTO) IsNil() bool        { return false }
+
+func (e eventUpdatedPTO) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.Uint32Key("pto_count", e.Value)
+}
+
+type eventPacketLost struct {
+	PacketType   logging.PacketType
+	PacketNumber protocol.PacketNumber
+	Trigger      packetLossReason
+}
+
+func (e eventPacketLost) Category() category { return categoryRecovery }
+func (e eventPacketLost) Name() string       { return "packet_lost" }
+func (e eventPacketLost) IsNil() bool        { return false }
+
+func (e eventPacketLost) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("header", packetHeaderWithTypeAndPacketNumber{
+		PacketType:   e.PacketType,
+		PacketNumber: e.PacketNumber,
+	})
+	enc.StringKey("trigger", e.Trigger.String())
+}
+
+type eventKeyUpdated struct {
+	Trigger    keyUpdateTrigger
+	KeyType    keyType
+	Generation protocol.KeyPhase
+	// we don't log the keys here, so we don't need `old` and `new`.
+}
+
+func (e eventKeyUpdated) Category() category { return categorySecurity }
+func (e eventKeyUpdated) Name() string       { return "key_updated" }
+func (e eventKeyUpdated) IsNil() bool        { return false }
+
+func (e eventKeyUpdated) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("trigger", e.Trigger.String())
+	enc.StringKey("key_type", e.KeyType.String())
+	if e.KeyType == keyTypeClient1RTT || e.KeyType == keyTypeServer1RTT {
+		enc.Uint64Key("generation", uint64(e.Generation))
+	}
+}
+
+type eventKeyRetired struct {
+	KeyType    keyType
+	Generation protocol.KeyPhase
+}
+
+func (e eventKeyRetired) Category() category { return categorySecurity }
+func (e eventKeyRetired) Name() string       { return "key_retired" }
+func (e eventKeyRetired) IsNil() bool        { return false }
+
+func (e eventKeyRetired) MarshalJSONObject(enc *gojay.Encoder) {
+	if e.KeyType != keyTypeClient1RTT && e.KeyType != keyTypeServer1RTT {
+		enc.StringKey("trigger", "tls")
+	}
+	enc.StringKey("key_type", e.KeyType.String())
+	if e.KeyType == keyTypeClient1RTT || e.KeyType == keyTypeServer1RTT {
+		enc.Uint64Key("generation", uint64(e.Generation))
+	}
+}
+
+type eventTransportParameters struct {
+	Restore bool
+	Owner   owner
+	SentBy  protocol.Perspective
+
+	OriginalDestinationConnectionID protocol.ConnectionID
+	InitialSourceConnectionID       protocol.ConnectionID
+	RetrySourceConnectionID         *protocol.ConnectionID
+
+	StatelessResetToken     *protocol.StatelessResetToken
+	DisableActiveMigration  bool
+	MaxIdleTimeout          time.Duration
+	MaxUDPPayloadSize       protocol.ByteCount
+	AckDelayExponent        uint8
+	MaxAckDelay             time.Duration
+	ActiveConnectionIDLimit uint64
+
+	InitialMaxData                 protocol.ByteCount
+	InitialMaxStreamDataBidiLocal  protocol.ByteCount
+	InitialMaxStreamDataBidiRemote protocol.ByteCount
+	InitialMaxStreamDataUni        protocol.ByteCount
+	InitialMaxStreamsBidi          int64
+	InitialMaxStreamsUni           int64
+
+	PreferredAddress *preferredAddress
+
+	MaxDatagramFrameSize protocol.ByteCount
+}
+
+func (e eventTransportParameters) Category() category { return categoryTransport }
+func (e eventTransportParameters) Name() string {
+	if e.Restore {
+		return "parameters_restored"
+	}
+	return "parameters_set"
+}
+func (e eventTransportParameters) IsNil() bool { return false }
+
+func (e eventTransportParameters) MarshalJSONObject(enc *gojay.Encoder) {
+	if !e.Restore {
+		enc.StringKey("owner", e.Owner.String())
+		if e.SentBy == protocol.PerspectiveServer {
+			enc.StringKey("original_destination_connection_id", connectionID(e.OriginalDestinationConnectionID).String())
+			if e.StatelessResetToken != nil {
+				enc.StringKey("stateless_reset_token", fmt.Sprintf("%x", e.StatelessResetToken[:]))
+			}
+			if e.RetrySourceConnectionID != nil {
+				enc.StringKey("retry_source_connection_id", connectionID(*e.RetrySourceConnectionID).String())
+			}
+		}
+		enc.StringKey("initial_source_connection_id", connectionID(e.InitialSourceConnectionID).String())
+	}
+	enc.BoolKey("disable_active_migration", e.DisableActiveMigration)
+	enc.FloatKeyOmitEmpty("max_idle_timeout", milliseconds(e.MaxIdleTimeout))
+	enc.Int64KeyNullEmpty("max_udp_payload_size", int64(e.MaxUDPPayloadSize))
+	enc.Uint8KeyOmitEmpty("ack_delay_exponent", e.AckDelayExponent)
+	enc.FloatKeyOmitEmpty("max_ack_delay", milliseconds(e.MaxAckDelay))
+	enc.Uint64KeyOmitEmpty("active_connection_id_limit", e.ActiveConnectionIDLimit)
+
+	enc.Int64KeyOmitEmpty("initial_max_data", int64(e.InitialMaxData))
+	enc.Int64KeyOmitEmpty("initial_max_stream_data_bidi_local", int64(e.InitialMaxStreamDataBidiLocal))
+	enc.Int64KeyOmitEmpty("initial_max_stream_data_bidi_remote", int64(e.InitialMaxStreamDataBidiRemote))
+	enc.Int64KeyOmitEmpty("initial_max_stream_data_uni", int64(e.InitialMaxStreamDataUni))
+	enc.Int64KeyOmitEmpty("initial_max_streams_bidi", e.InitialMaxStreamsBidi)
+	enc.Int64KeyOmitEmpty("initial_max_streams_uni", e.InitialMaxStreamsUni)
+
+	if e.PreferredAddress != nil {
+		enc.ObjectKey("preferred_address", e.PreferredAddress)
+	}
+	if e.MaxDatagramFrameSize != protocol.InvalidByteCount {
+		enc.Int64Key("max_datagram_frame_size", int64(e.MaxDatagramFrameSize))
+	}
+}
+
+type preferredAddress struct {
+	IPv4, IPv6          net.IP
+	PortV4, PortV6      uint16
+	ConnectionID        protocol.ConnectionID
+	StatelessResetToken protocol.StatelessResetToken
+}
+
+var _ gojay.MarshalerJSONObject = &preferredAddress{}
+
+func (a preferredAddress) IsNil() bool { return false }
+func (a preferredAddress) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("ip_v4", a.IPv4.String())
+	enc.Uint16Key("port_v4", a.PortV4)
+	enc.StringKey("ip_v6", a.IPv6.String())
+	enc.Uint16Key("port_v6", a.PortV6)
+	enc.StringKey("connection_id", connectionID(a.ConnectionID).String())
+	enc.StringKey("stateless_reset_token", fmt.Sprintf("%x", a.StatelessResetToken))
+}
+
+type eventLossTimerSet struct {
+	TimerType timerType
+	EncLevel  protocol.EncryptionLevel
+	Delta     time.Duration
+}
+
+func (e eventLossTimerSet) Category() category { return categoryRecovery }
+func (e eventLossTimerSet) Name() string       { return "loss_timer_updated" }
+func (e eventLossTimerSet) IsNil() bool        { return false }
+
+func (e eventLossTimerSet) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("event_type", "set")
+	enc.StringKey("timer_type", e.TimerType.String())
+	enc.StringKey("packet_number_space", encLevelToPacketNumberSpace(e.EncLevel))
+	enc.Float64Key("delta", milliseconds(e.Delta))
+}
+
+type eventLossTimerExpired struct {
+	TimerType timerType
+	EncLevel  protocol.EncryptionLevel
+}
+
+func (e eventLossTimerExpired) Category() category { return categoryRecovery }
+func (e eventLossTimerExpired) Name() string       { return "loss_timer_updated" }
+func (e eventLossTimerExpired) IsNil() bool        { return false }
+
+func (e eventLossTimerExpired) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("event_type", "expired")
+	enc.StringKey("timer_type", e.TimerType.String())
+	enc.StringKey("packet_number_space", encLevelToPacketNumberSpace(e.EncLevel))
+}
+
+type eventLossTimerCanceled struct{}
+
+func (e eventLossTimerCanceled) Category() category { return categoryRecovery }
+func (e eventLossTimerCanceled) Name() string       { return "loss_timer_updated" }
+func (e eventLossTimerCanceled) IsNil() bool        { return false }
+
+func (e eventLossTimerCanceled) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("event_type", "cancelled")
+}
+
+type eventCongestionStateUpdated struct {
+	state congestionState
+}
+
+func (e eventCongestionStateUpdated) Category() category { return categoryRecovery }
+func (e eventCongestionStateUpdated) Name() string       { return "congestion_state_updated" }
+func (e eventCongestionStateUpdated) IsNil() bool        { return false }
+
+func (e eventCongestionStateUpdated) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("new", e.state.String())
+}
+
+type eventGeneric struct {
+	name string
+	msg  string
+}
+
+func (e eventGeneric) Category() category { return categoryTransport }
+func (e eventGeneric) Name() string       { return e.name }
+func (e eventGeneric) IsNil() bool        { return false }
+
+func (e eventGeneric) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("details", e.msg)
+}
--- a/vendor/github.com/lucas-clemente/quic-go/qlog/frame.go
+++ b/vendor/github.com/lucas-clemente/quic-go/qlog/frame.go
@@ -0,0 +1,227 @@
+package qlog
+
+import (
+	"fmt"
+
+	"github.com/lucas-clemente/quic-go/internal/wire"
+	"github.com/lucas-clemente/quic-go/logging"
+
+	"github.com/francoispqt/gojay"
+)
+
+type frame struct {
+	Frame logging.Frame
+}
+
+var _ gojay.MarshalerJSONObject = frame{}
+
+var _ gojay.MarshalerJSONArray = frames{}
+
+func (f frame) MarshalJSONObject(enc *gojay.Encoder) {
+	switch frame := f.Frame.(type) {
+	case *logging.PingFrame:
+		marshalPingFrame(enc, frame)
+	case *logging.AckFrame:
+		marshalAckFrame(enc, frame)
+	case *logging.ResetStreamFrame:
+		marshalResetStreamFrame(enc, frame)
+	case *logging.StopSendingFrame:
+		marshalStopSendingFrame(enc, frame)
+	case *logging.CryptoFrame:
+		marshalCryptoFrame(enc, frame)
+	case *logging.NewTokenFrame:
+		marshalNewTokenFrame(enc, frame)
+	case *logging.StreamFrame:
+		marshalStreamFrame(enc, frame)
+	case *logging.MaxDataFrame:
+		marshalMaxDataFrame(enc, frame)
+	case *logging.MaxStreamDataFrame:
+		marshalMaxStreamDataFrame(enc, frame)
+	case *logging.MaxStreamsFrame:
+		marshalMaxStreamsFrame(enc, frame)
+	case *logging.DataBlockedFrame:
+		marshalDataBlockedFrame(enc, frame)
+	case *logging.StreamDataBlockedFrame:
+		marshalStreamDataBlockedFrame(enc, frame)
+	case *logging.StreamsBlockedFrame:
+		marshalStreamsBlockedFrame(enc, frame)
+	case *logging.NewConnectionIDFrame:
+		marshalNewConnectionIDFrame(enc, frame)
+	case *logging.RetireConnectionIDFrame:
+		marshalRetireConnectionIDFrame(enc, frame)
+	case *logging.PathChallengeFrame:
+		marshalPathChallengeFrame(enc, frame)
+	case *logging.PathResponseFrame:
+		marshalPathResponseFrame(enc, frame)
+	case *logging.ConnectionCloseFrame:
+		marshalConnectionCloseFrame(enc, frame)
+	case *logging.HandshakeDoneFrame:
+		marshalHandshakeDoneFrame(enc, frame)
+	case *logging.DatagramFrame:
+		marshalDatagramFrame(enc, frame)
+	default:
+		panic("unknown frame type")
+	}
+}
+
+func (f frame) IsNil() bool { return false }
+
+type frames []frame
+
+func (fs frames) IsNil() bool { return fs == nil }
+func (fs frames) MarshalJSONArray(enc *gojay.Encoder) {
+	for _, f := range fs {
+		enc.Object(f)
+	}
+}
+
+func marshalPingFrame(enc *gojay.Encoder, _ *wire.PingFrame) {
+	enc.StringKey("frame_type", "ping")
+}
+
+type ackRanges []wire.AckRange
+
+func (ars ackRanges) MarshalJSONArray(enc *gojay.Encoder) {
+	for _, r := range ars {
+		enc.Array(ackRange(r))
+	}
+}
+
+func (ars ackRanges) IsNil() bool { return false }
+
+type ackRange wire.AckRange
+
+func (ar ackRange) MarshalJSONArray(enc *gojay.Encoder) {
+	enc.AddInt64(int64(ar.Smallest))
+	if ar.Smallest != ar.Largest {
+		enc.AddInt64(int64(ar.Largest))
+	}
+}
+
+func (ar ackRange) IsNil() bool { return false }
+
+func marshalAckFrame(enc *gojay.Encoder, f *logging.AckFrame) {
+	enc.StringKey("frame_type", "ack")
+	enc.FloatKeyOmitEmpty("ack_delay", milliseconds(f.DelayTime))
+	enc.ArrayKey("acked_ranges", ackRanges(f.AckRanges))
+	if hasECN := f.ECT0 > 0 || f.ECT1 > 0 || f.ECNCE > 0; hasECN {
+		enc.Uint64Key("ect0", f.ECT0)
+		enc.Uint64Key("ect1", f.ECT1)
+		enc.Uint64Key("ce", f.ECNCE)
+	}
+}
+
+func marshalResetStreamFrame(enc *gojay.Encoder, f *logging.ResetStreamFrame) {
+	enc.StringKey("frame_type", "reset_stream")
+	enc.Int64Key("stream_id", int64(f.StreamID))
+	enc.Int64Key("error_code", int64(f.ErrorCode))
+	enc.Int64Key("final_size", int64(f.FinalSize))
+}
+
+func marshalStopSendingFrame(enc *gojay.Encoder, f *logging.StopSendingFrame) {
+	enc.StringKey("frame_type", "stop_sending")
+	enc.Int64Key("stream_id", int64(f.StreamID))
+	enc.Int64Key("error_code", int64(f.ErrorCode))
+}
+
+func marshalCryptoFrame(enc *gojay.Encoder, f *logging.CryptoFrame) {
+	enc.StringKey("frame_type", "crypto")
+	enc.Int64Key("offset", int64(f.Offset))
+	enc.Int64Key("length", int64(f.Length))
+}
+
+func marshalNewTokenFrame(enc *gojay.Encoder, f *logging.NewTokenFrame) {
+	enc.StringKey("frame_type", "new_token")
+	enc.ObjectKey("token", &token{Raw: f.Token})
+}
+
+func marshalStreamFrame(enc *gojay.Encoder, f *logging.StreamFrame) {
+	enc.StringKey("frame_type", "stream")
+	enc.Int64Key("stream_id", int64(f.StreamID))
+	enc.Int64Key("offset", int64(f.Offset))
+	enc.IntKey("length", int(f.Length))
+	enc.BoolKeyOmitEmpty("fin", f.Fin)
+}
+
+func marshalMaxDataFrame(enc *gojay.Encoder, f *logging.MaxDataFrame) {
+	enc.StringKey("frame_type", "max_data")
+	enc.Int64Key("maximum", int64(f.MaximumData))
+}
+
+func marshalMaxStreamDataFrame(enc *gojay.Encoder, f *logging.MaxStreamDataFrame) {
+	enc.StringKey("frame_type", "max_stream_data")
+	enc.Int64Key("stream_id", int64(f.StreamID))
+	enc.Int64Key("maximum", int64(f.MaximumStreamData))
+}
+
+func marshalMaxStreamsFrame(enc *gojay.Encoder, f *logging.MaxStreamsFrame) {
+	enc.StringKey("frame_type", "max_streams")
+	enc.StringKey("stream_type", streamType(f.Type).String())
+	enc.Int64Key("maximum", int64(f.MaxStreamNum))
+}
+
+func marshalDataBlockedFrame(enc *gojay.Encoder, f *logging.DataBlockedFrame) {
+	enc.StringKey("frame_type", "data_blocked")
+	enc.Int64Key("limit", int64(f.MaximumData))
+}
+
+func marshalStreamDataBlockedFrame(enc *gojay.Encoder, f *logging.StreamDataBlockedFrame) {
+	enc.StringKey("frame_type", "stream_data_blocked")
+	enc.Int64Key("stream_id", int64(f.StreamID))
+	enc.Int64Key("limit", int64(f.MaximumStreamData))
+}
+
+func marshalStreamsBlockedFrame(enc *gojay.Encoder, f *logging.StreamsBlockedFrame) {
+	enc.StringKey("frame_type", "streams_blocked")
+	enc.StringKey("stream_type", streamType(f.Type).String())
+	enc.Int64Key("limit", int64(f.StreamLimit))
+}
+
+func marshalNewConnectionIDFrame(enc *gojay.Encoder, f *logging.NewConnectionIDFrame) {
+	enc.StringKey("frame_type", "new_connection_id")
+	enc.Int64Key("sequence_number", int64(f.SequenceNumber))
+	enc.Int64Key("retire_prior_to", int64(f.RetirePriorTo))
+	enc.IntKey("length", f.ConnectionID.Len())
+	enc.StringKey("connection_id", connectionID(f.ConnectionID).String())
+	enc.StringKey("stateless_reset_token", fmt.Sprintf("%x", f.StatelessResetToken))
+}
+
+func marshalRetireConnectionIDFrame(enc *gojay.Encoder, f *logging.RetireConnectionIDFrame) {
+	enc.StringKey("frame_type", "retire_connection_id")
+	enc.Int64Key("sequence_number", int64(f.SequenceNumber))
+}
+
+func marshalPathChallengeFrame(enc *gojay.Encoder, f *logging.PathChallengeFrame) {
+	enc.StringKey("frame_type", "path_challenge")
+	enc.StringKey("data", fmt.Sprintf("%x", f.Data[:]))
+}
+
+func marshalPathResponseFrame(enc *gojay.Encoder, f *logging.PathResponseFrame) {
+	enc.StringKey("frame_type", "path_response")
+	enc.StringKey("data", fmt.Sprintf("%x", f.Data[:]))
+}
+
+func marshalConnectionCloseFrame(enc *gojay.Encoder, f *logging.ConnectionCloseFrame) {
+	errorSpace := "transport"
+	if f.IsApplicationError {
+		errorSpace = "application"
+	}
+	enc.StringKey("frame_type", "connection_close")
+	enc.StringKey("error_space", errorSpace)
+	if errName := transportError(f.ErrorCode).String(); len(errName) > 0 {
+		enc.StringKey("error_code", errName)
+	} else {
+		enc.Uint64Key("error_code", f.ErrorCode)
+	}
+	enc.Uint64Key("raw_error_code", f.ErrorCode)
+	enc.StringKey("reason", f.ReasonPhrase)
+}
+
+func marshalHandshakeDoneFrame(enc *gojay.Encoder, _ *logging.HandshakeDoneFrame) {
+	enc.StringKey("frame_type", "handshake_done")
+}
+
+func marshalDatagramFrame(enc *gojay.Encoder, f *logging.DatagramFrame) {
+	enc.StringKey("frame_type", "datagram")
+	enc.Int64Key("length", int64(f.Length))
+}
--- a/vendor/github.com/lucas-clemente/quic-go/qlog/packet_header.go
+++ b/vendor/github.com/lucas-clemente/quic-go/qlog/packet_header.go
@@ -0,0 +1,119 @@
+package qlog
+
+import (
+	"fmt"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/lucas-clemente/quic-go/internal/wire"
+	"github.com/lucas-clemente/quic-go/logging"
+
+	"github.com/francoispqt/gojay"
+)
+
+func getPacketTypeFromEncryptionLevel(encLevel protocol.EncryptionLevel) logging.PacketType {
+	switch encLevel {
+	case protocol.EncryptionInitial:
+		return logging.PacketTypeInitial
+	case protocol.EncryptionHandshake:
+		return logging.PacketTypeHandshake
+	case protocol.Encryption0RTT:
+		return logging.PacketType0RTT
+	case protocol.Encryption1RTT:
+		return logging.PacketType1RTT
+	default:
+		panic("unknown encryption level")
+	}
+}
+
+type token struct {
+	Raw []byte
+}
+
+var _ gojay.MarshalerJSONObject = &token{}
+
+func (t token) IsNil() bool { return false }
+func (t token) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("data", fmt.Sprintf("%x", t.Raw))
+}
+
+// PacketHeader is a QUIC packet header.
+type packetHeader struct {
+	PacketType logging.PacketType
+
+	KeyPhaseBit  logging.KeyPhaseBit
+	PacketNumber logging.PacketNumber
+
+	Version          logging.VersionNumber
+	SrcConnectionID  logging.ConnectionID
+	DestConnectionID logging.ConnectionID
+
+	Token *token
+}
+
+func transformHeader(hdr *wire.Header) *packetHeader {
+	h := &packetHeader{
+		PacketType:       logging.PacketTypeFromHeader(hdr),
+		SrcConnectionID:  hdr.SrcConnectionID,
+		DestConnectionID: hdr.DestConnectionID,
+		Version:          hdr.Version,
+	}
+	if len(hdr.Token) > 0 {
+		h.Token = &token{Raw: hdr.Token}
+	}
+	return h
+}
+
+func transformExtendedHeader(hdr *wire.ExtendedHeader) *packetHeader {
+	h := transformHeader(&hdr.Header)
+	h.PacketNumber = hdr.PacketNumber
+	h.KeyPhaseBit = hdr.KeyPhase
+	return h
+}
+
+func (h packetHeader) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("packet_type", packetType(h.PacketType).String())
+	if h.PacketType != logging.PacketTypeRetry && h.PacketType != logging.PacketTypeVersionNegotiation {
+		enc.Int64Key("packet_number", int64(h.PacketNumber))
+	}
+	if h.Version != 0 {
+		enc.StringKey("version", versionNumber(h.Version).String())
+	}
+	if h.PacketType != logging.PacketType1RTT {
+		enc.IntKey("scil", h.SrcConnectionID.Len())
+		if h.SrcConnectionID.Len() > 0 {
+			enc.StringKey("scid", connectionID(h.SrcConnectionID).String())
+		}
+	}
+	enc.IntKey("dcil", h.DestConnectionID.Len())
+	if h.DestConnectionID.Len() > 0 {
+		enc.StringKey("dcid", connectionID(h.DestConnectionID).String())
+	}
+	if h.KeyPhaseBit == logging.KeyPhaseZero || h.KeyPhaseBit == logging.KeyPhaseOne {
+		enc.StringKey("key_phase_bit", h.KeyPhaseBit.String())
+	}
+	if h.Token != nil {
+		enc.ObjectKey("token", h.Token)
+	}
+}
+
+// a minimal header that only outputs the packet type
+type packetHeaderWithType struct {
+	PacketType logging.PacketType
+}
+
+func (h packetHeaderWithType) IsNil() bool { return false }
+func (h packetHeaderWithType) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("packet_type", packetType(h.PacketType).String())
+}
+
+// a minimal header that only outputs the packet type
+type packetHeaderWithTypeAndPacketNumber struct {
+	PacketType   logging.PacketType
+	PacketNumber logging.PacketNumber
+}
+
+func (h packetHeaderWithTypeAndPacketNumber) IsNil() bool { return false }
+func (h packetHeaderWithTypeAndPacketNumber) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("packet_type", packetType(h.PacketType).String())
+	enc.Int64Key("packet_number", int64(h.PacketNumber))
+}
--- a/vendor/github.com/lucas-clemente/quic-go/qlog/qlog.go
+++ b/vendor/github.com/lucas-clemente/quic-go/qlog/qlog.go
@@ -0,0 +1,486 @@
+package qlog
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"runtime/debug"
+	"sync"
+	"time"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/lucas-clemente/quic-go/internal/utils"
+	"github.com/lucas-clemente/quic-go/internal/wire"
+	"github.com/lucas-clemente/quic-go/logging"
+
+	"github.com/francoispqt/gojay"
+)
+
+// Setting of this only works when quic-go is used as a library.
+// When building a binary from this repository, the version can be set using the following go build flag:
+// -ldflags="-X github.com/lucas-clemente/quic-go/qlog.quicGoVersion=foobar"
+var quicGoVersion = "(devel)"
+
+func init() {
+	if quicGoVersion != "(devel)" { // variable set by ldflags
+		return
+	}
+	info, ok := debug.ReadBuildInfo()
+	if !ok { // no build info available. This happens when quic-go is not used as a library.
+		return
+	}
+	for _, d := range info.Deps {
+		if d.Path == "github.com/lucas-clemente/quic-go" {
+			quicGoVersion = d.Version
+			if d.Replace != nil {
+				if len(d.Replace.Version) > 0 {
+					quicGoVersion = d.Version
+				} else {
+					quicGoVersion += " (replaced)"
+				}
+			}
+			break
+		}
+	}
+}
+
+const eventChanSize = 50
+
+type tracer struct {
+	getLogWriter func(p logging.Perspective, connectionID []byte) io.WriteCloser
+}
+
+var _ logging.Tracer = &tracer{}
+
+// NewTracer creates a new qlog tracer.
+func NewTracer(getLogWriter func(p logging.Perspective, connectionID []byte) io.WriteCloser) logging.Tracer {
+	return &tracer{getLogWriter: getLogWriter}
+}
+
+func (t *tracer) TracerForConnection(_ context.Context, p logging.Perspective, odcid protocol.ConnectionID) logging.ConnectionTracer {
+	if w := t.getLogWriter(p, odcid.Bytes()); w != nil {
+		return NewConnectionTracer(w, p, odcid)
+	}
+	return nil
+}
+
+func (t *tracer) SentPacket(net.Addr, *logging.Header, protocol.ByteCount, []logging.Frame) {}
+func (t *tracer) DroppedPacket(net.Addr, logging.PacketType, protocol.ByteCount, logging.PacketDropReason) {
+}
+
+type connectionTracer struct {
+	mutex sync.Mutex
+
+	w             io.WriteCloser
+	odcid         protocol.ConnectionID
+	perspective   protocol.Perspective
+	referenceTime time.Time
+
+	events     chan event
+	encodeErr  error
+	runStopped chan struct{}
+
+	lastMetrics *metrics
+}
+
+var _ logging.ConnectionTracer = &connectionTracer{}
+
+// NewConnectionTracer creates a new tracer to record a qlog for a connection.
+func NewConnectionTracer(w io.WriteCloser, p protocol.Perspective, odcid protocol.ConnectionID) logging.ConnectionTracer {
+	t := &connectionTracer{
+		w:             w,
+		perspective:   p,
+		odcid:         odcid,
+		runStopped:    make(chan struct{}),
+		events:        make(chan event, eventChanSize),
+		referenceTime: time.Now(),
+	}
+	go t.run()
+	return t
+}
+
+func (t *connectionTracer) run() {
+	defer close(t.runStopped)
+	buf := &bytes.Buffer{}
+	enc := gojay.NewEncoder(buf)
+	tl := &topLevel{
+		trace: trace{
+			VantagePoint: vantagePoint{Type: t.perspective},
+			CommonFields: commonFields{
+				ODCID:         connectionID(t.odcid),
+				GroupID:       connectionID(t.odcid),
+				ReferenceTime: t.referenceTime,
+			},
+		},
+	}
+	if err := enc.Encode(tl); err != nil {
+		panic(fmt.Sprintf("qlog encoding into a bytes.Buffer failed: %s", err))
+	}
+	if err := buf.WriteByte('\n'); err != nil {
+		panic(fmt.Sprintf("qlog encoding into a bytes.Buffer failed: %s", err))
+	}
+	if _, err := t.w.Write(buf.Bytes()); err != nil {
+		t.encodeErr = err
+	}
+	enc = gojay.NewEncoder(t.w)
+	for ev := range t.events {
+		if t.encodeErr != nil { // if encoding failed, just continue draining the event channel
+			continue
+		}
+		if err := enc.Encode(ev); err != nil {
+			t.encodeErr = err
+			continue
+		}
+		if _, err := t.w.Write([]byte{'\n'}); err != nil {
+			t.encodeErr = err
+		}
+	}
+}
+
+func (t *connectionTracer) Close() {
+	if err := t.export(); err != nil {
+		log.Printf("exporting qlog failed: %s\n", err)
+	}
+}
+
+// export writes a qlog.
+func (t *connectionTracer) export() error {
+	close(t.events)
+	<-t.runStopped
+	if t.encodeErr != nil {
+		return t.encodeErr
+	}
+	return t.w.Close()
+}
+
+func (t *connectionTracer) recordEvent(eventTime time.Time, details eventDetails) {
+	t.events <- event{
+		RelativeTime: eventTime.Sub(t.referenceTime),
+		eventDetails: details,
+	}
+}
+
+func (t *connectionTracer) StartedConnection(local, remote net.Addr, srcConnID, destConnID protocol.ConnectionID) {
+	// ignore this event if we're not dealing with UDP addresses here
+	localAddr, ok := local.(*net.UDPAddr)
+	if !ok {
+		return
+	}
+	remoteAddr, ok := remote.(*net.UDPAddr)
+	if !ok {
+		return
+	}
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventConnectionStarted{
+		SrcAddr:          localAddr,
+		DestAddr:         remoteAddr,
+		SrcConnectionID:  srcConnID,
+		DestConnectionID: destConnID,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) NegotiatedVersion(chosen logging.VersionNumber, client, server []logging.VersionNumber) {
+	var clientVersions, serverVersions []versionNumber
+	if len(client) > 0 {
+		clientVersions = make([]versionNumber, len(client))
+		for i, v := range client {
+			clientVersions[i] = versionNumber(v)
+		}
+	}
+	if len(server) > 0 {
+		serverVersions = make([]versionNumber, len(server))
+		for i, v := range server {
+			serverVersions[i] = versionNumber(v)
+		}
+	}
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventVersionNegotiated{
+		clientVersions: clientVersions,
+		serverVersions: serverVersions,
+		chosenVersion:  versionNumber(chosen),
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) ClosedConnection(e error) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventConnectionClosed{e: e})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) SentTransportParameters(tp *wire.TransportParameters) {
+	t.recordTransportParameters(t.perspective, tp)
+}
+
+func (t *connectionTracer) ReceivedTransportParameters(tp *wire.TransportParameters) {
+	t.recordTransportParameters(t.perspective.Opposite(), tp)
+}
+
+func (t *connectionTracer) RestoredTransportParameters(tp *wire.TransportParameters) {
+	ev := t.toTransportParameters(tp)
+	ev.Restore = true
+
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), ev)
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) recordTransportParameters(sentBy protocol.Perspective, tp *wire.TransportParameters) {
+	ev := t.toTransportParameters(tp)
+	ev.Owner = ownerLocal
+	if sentBy != t.perspective {
+		ev.Owner = ownerRemote
+	}
+	ev.SentBy = sentBy
+
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), ev)
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) toTransportParameters(tp *wire.TransportParameters) *eventTransportParameters {
+	var pa *preferredAddress
+	if tp.PreferredAddress != nil {
+		pa = &preferredAddress{
+			IPv4:                tp.PreferredAddress.IPv4,
+			PortV4:              tp.PreferredAddress.IPv4Port,
+			IPv6:                tp.PreferredAddress.IPv6,
+			PortV6:              tp.PreferredAddress.IPv6Port,
+			ConnectionID:        tp.PreferredAddress.ConnectionID,
+			StatelessResetToken: tp.PreferredAddress.StatelessResetToken,
+		}
+	}
+	return &eventTransportParameters{
+		OriginalDestinationConnectionID: tp.OriginalDestinationConnectionID,
+		InitialSourceConnectionID:       tp.InitialSourceConnectionID,
+		RetrySourceConnectionID:         tp.RetrySourceConnectionID,
+		StatelessResetToken:             tp.StatelessResetToken,
+		DisableActiveMigration:          tp.DisableActiveMigration,
+		MaxIdleTimeout:                  tp.MaxIdleTimeout,
+		MaxUDPPayloadSize:               tp.MaxUDPPayloadSize,
+		AckDelayExponent:                tp.AckDelayExponent,
+		MaxAckDelay:                     tp.MaxAckDelay,
+		ActiveConnectionIDLimit:         tp.ActiveConnectionIDLimit,
+		InitialMaxData:                  tp.InitialMaxData,
+		InitialMaxStreamDataBidiLocal:   tp.InitialMaxStreamDataBidiLocal,
+		InitialMaxStreamDataBidiRemote:  tp.InitialMaxStreamDataBidiRemote,
+		InitialMaxStreamDataUni:         tp.InitialMaxStreamDataUni,
+		InitialMaxStreamsBidi:           int64(tp.MaxBidiStreamNum),
+		InitialMaxStreamsUni:            int64(tp.MaxUniStreamNum),
+		PreferredAddress:                pa,
+		MaxDatagramFrameSize:            tp.MaxDatagramFrameSize,
+	}
+}
+
+func (t *connectionTracer) SentPacket(hdr *wire.ExtendedHeader, packetSize logging.ByteCount, ack *logging.AckFrame, frames []logging.Frame) {
+	numFrames := len(frames)
+	if ack != nil {
+		numFrames++
+	}
+	fs := make([]frame, 0, numFrames)
+	if ack != nil {
+		fs = append(fs, frame{Frame: ack})
+	}
+	for _, f := range frames {
+		fs = append(fs, frame{Frame: f})
+	}
+	header := *transformExtendedHeader(hdr)
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventPacketSent{
+		Header:        header,
+		Length:        packetSize,
+		PayloadLength: hdr.Length,
+		Frames:        fs,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) ReceivedPacket(hdr *wire.ExtendedHeader, packetSize logging.ByteCount, frames []logging.Frame) {
+	fs := make([]frame, len(frames))
+	for i, f := range frames {
+		fs[i] = frame{Frame: f}
+	}
+	header := *transformExtendedHeader(hdr)
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventPacketReceived{
+		Header:        header,
+		Length:        packetSize,
+		PayloadLength: hdr.Length,
+		Frames:        fs,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) ReceivedRetry(hdr *wire.Header) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventRetryReceived{
+		Header: *transformHeader(hdr),
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) ReceivedVersionNegotiationPacket(hdr *wire.Header, versions []logging.VersionNumber) {
+	ver := make([]versionNumber, len(versions))
+	for i, v := range versions {
+		ver[i] = versionNumber(v)
+	}
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventVersionNegotiationReceived{
+		Header:            *transformHeader(hdr),
+		SupportedVersions: ver,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) BufferedPacket(pt logging.PacketType) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventPacketBuffered{PacketType: pt})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) DroppedPacket(pt logging.PacketType, size protocol.ByteCount, reason logging.PacketDropReason) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventPacketDropped{
+		PacketType: pt,
+		PacketSize: size,
+		Trigger:    packetDropReason(reason),
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) UpdatedMetrics(rttStats *utils.RTTStats, cwnd, bytesInFlight protocol.ByteCount, packetsInFlight int) {
+	m := &metrics{
+		MinRTT:           rttStats.MinRTT(),
+		SmoothedRTT:      rttStats.SmoothedRTT(),
+		LatestRTT:        rttStats.LatestRTT(),
+		RTTVariance:      rttStats.MeanDeviation(),
+		CongestionWindow: cwnd,
+		BytesInFlight:    bytesInFlight,
+		PacketsInFlight:  packetsInFlight,
+	}
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventMetricsUpdated{
+		Last:    t.lastMetrics,
+		Current: m,
+	})
+	t.lastMetrics = m
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) AcknowledgedPacket(protocol.EncryptionLevel, protocol.PacketNumber) {}
+
+func (t *connectionTracer) LostPacket(encLevel protocol.EncryptionLevel, pn protocol.PacketNumber, lossReason logging.PacketLossReason) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventPacketLost{
+		PacketType:   getPacketTypeFromEncryptionLevel(encLevel),
+		PacketNumber: pn,
+		Trigger:      packetLossReason(lossReason),
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) UpdatedCongestionState(state logging.CongestionState) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventCongestionStateUpdated{state: congestionState(state)})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) UpdatedPTOCount(value uint32) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventUpdatedPTO{Value: value})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) UpdatedKeyFromTLS(encLevel protocol.EncryptionLevel, pers protocol.Perspective) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventKeyUpdated{
+		Trigger: keyUpdateTLS,
+		KeyType: encLevelToKeyType(encLevel, pers),
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) UpdatedKey(generation protocol.KeyPhase, remote bool) {
+	trigger := keyUpdateLocal
+	if remote {
+		trigger = keyUpdateRemote
+	}
+	t.mutex.Lock()
+	now := time.Now()
+	t.recordEvent(now, &eventKeyUpdated{
+		Trigger:    trigger,
+		KeyType:    keyTypeClient1RTT,
+		Generation: generation,
+	})
+	t.recordEvent(now, &eventKeyUpdated{
+		Trigger:    trigger,
+		KeyType:    keyTypeServer1RTT,
+		Generation: generation,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) DroppedEncryptionLevel(encLevel protocol.EncryptionLevel) {
+	t.mutex.Lock()
+	now := time.Now()
+	if encLevel == protocol.Encryption0RTT {
+		t.recordEvent(now, &eventKeyRetired{KeyType: encLevelToKeyType(encLevel, t.perspective)})
+	} else {
+		t.recordEvent(now, &eventKeyRetired{KeyType: encLevelToKeyType(encLevel, protocol.PerspectiveServer)})
+		t.recordEvent(now, &eventKeyRetired{KeyType: encLevelToKeyType(encLevel, protocol.PerspectiveClient)})
+	}
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) DroppedKey(generation protocol.KeyPhase) {
+	t.mutex.Lock()
+	now := time.Now()
+	t.recordEvent(now, &eventKeyRetired{
+		KeyType:    encLevelToKeyType(protocol.Encryption1RTT, protocol.PerspectiveServer),
+		Generation: generation,
+	})
+	t.recordEvent(now, &eventKeyRetired{
+		KeyType:    encLevelToKeyType(protocol.Encryption1RTT, protocol.PerspectiveClient),
+		Generation: generation,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) SetLossTimer(tt logging.TimerType, encLevel protocol.EncryptionLevel, timeout time.Time) {
+	t.mutex.Lock()
+	now := time.Now()
+	t.recordEvent(now, &eventLossTimerSet{
+		TimerType: timerType(tt),
+		EncLevel:  encLevel,
+		Delta:     timeout.Sub(now),
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) LossTimerExpired(tt logging.TimerType, encLevel protocol.EncryptionLevel) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventLossTimerExpired{
+		TimerType: timerType(tt),
+		EncLevel:  encLevel,
+	})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) LossTimerCanceled() {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventLossTimerCanceled{})
+	t.mutex.Unlock()
+}
+
+func (t *connectionTracer) Debug(name, msg string) {
+	t.mutex.Lock()
+	t.recordEvent(time.Now(), &eventGeneric{
+		name: name,
+		msg:  msg,
+	})
+	t.mutex.Unlock()
+}
--- a/vendor/github.com/lucas-clemente/quic-go/qlog/trace.go
+++ b/vendor/github.com/lucas-clemente/quic-go/qlog/trace.go
@@ -0,0 +1,66 @@
+package qlog
+
+import (
+	"time"
+
+	"github.com/francoispqt/gojay"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+)
+
+type topLevel struct {
+	trace trace
+}
+
+func (topLevel) IsNil() bool { return false }
+func (l topLevel) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("qlog_format", "NDJSON")
+	enc.StringKey("qlog_version", "draft-02")
+	enc.StringKeyOmitEmpty("title", "quic-go qlog")
+	enc.StringKey("code_version", quicGoVersion)
+	enc.ObjectKey("trace", l.trace)
+}
+
+type vantagePoint struct {
+	Name string
+	Type protocol.Perspective
+}
+
+func (p vantagePoint) IsNil() bool { return false }
+func (p vantagePoint) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKeyOmitEmpty("name", p.Name)
+	switch p.Type {
+	case protocol.PerspectiveClient:
+		enc.StringKey("type", "client")
+	case protocol.PerspectiveServer:
+		enc.StringKey("type", "server")
+	}
+}
+
+type commonFields struct {
+	ODCID         connectionID
+	GroupID       connectionID
+	ProtocolType  string
+	ReferenceTime time.Time
+}
+
+func (f commonFields) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.StringKey("ODCID", f.ODCID.String())
+	enc.StringKey("group_id", f.ODCID.String())
+	enc.StringKeyOmitEmpty("protocol_type", f.ProtocolType)
+	enc.Float64Key("reference_time", float64(f.ReferenceTime.UnixNano())/1e6)
+	enc.StringKey("time_format", "relative")
+}
+
+func (f commonFields) IsNil() bool { return false }
+
+type trace struct {
+	VantagePoint vantagePoint
+	CommonFields commonFields
+}
+
+func (trace) IsNil() bool { return false }
+func (t trace) MarshalJSONObject(enc *gojay.Encoder) {
+	enc.ObjectKey("vantage_point", t.VantagePoint)
+	enc.ObjectKey("common_fields", t.CommonFields)
+}
--- a/vendor/github.com/lucas-clemente/quic-go/qlog/types.go
+++ b/vendor/github.com/lucas-clemente/quic-go/qlog/types.go
@@ -0,0 +1,320 @@
+package qlog
+
+import (
+	"fmt"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/lucas-clemente/quic-go/internal/qerr"
+	"github.com/lucas-clemente/quic-go/logging"
+)
+
+type owner uint8
+
+const (
+	ownerLocal owner = iota
+	ownerRemote
+)
+
+func (o owner) String() string {
+	switch o {
+	case ownerLocal:
+		return "local"
+	case ownerRemote:
+		return "remote"
+	default:
+		return "unknown owner"
+	}
+}
+
+type streamType protocol.StreamType
+
+func (s streamType) String() string {
+	switch protocol.StreamType(s) {
+	case protocol.StreamTypeUni:
+		return "unidirectional"
+	case protocol.StreamTypeBidi:
+		return "bidirectional"
+	default:
+		return "unknown stream type"
+	}
+}
+
+type connectionID protocol.ConnectionID
+
+func (c connectionID) String() string {
+	return fmt.Sprintf("%x", []byte(c))
+}
+
+// category is the qlog event category.
+type category uint8
+
+const (
+	categoryConnectivity category = iota
+	categoryTransport
+	categorySecurity
+	categoryRecovery
+)
+
+func (c category) String() string {
+	switch c {
+	case categoryConnectivity:
+		return "connectivity"
+	case categoryTransport:
+		return "transport"
+	case categorySecurity:
+		return "security"
+	case categoryRecovery:
+		return "recovery"
+	default:
+		return "unknown category"
+	}
+}
+
+type versionNumber protocol.VersionNumber
+
+func (v versionNumber) String() string {
+	return fmt.Sprintf("%x", uint32(v))
+}
+
+func (packetHeader) IsNil() bool { return false }
+
+func encLevelToPacketNumberSpace(encLevel protocol.EncryptionLevel) string {
+	switch encLevel {
+	case protocol.EncryptionInitial:
+		return "initial"
+	case protocol.EncryptionHandshake:
+		return "handshake"
+	case protocol.Encryption0RTT, protocol.Encryption1RTT:
+		return "application_data"
+	default:
+		return "unknown encryption level"
+	}
+}
+
+type keyType uint8
+
+const (
+	keyTypeServerInitial keyType = 1 + iota
+	keyTypeClientInitial
+	keyTypeServerHandshake
+	keyTypeClientHandshake
+	keyTypeServer0RTT
+	keyTypeClient0RTT
+	keyTypeServer1RTT
+	keyTypeClient1RTT
+)
+
+func encLevelToKeyType(encLevel protocol.EncryptionLevel, pers protocol.Perspective) keyType {
+	if pers == protocol.PerspectiveServer {
+		switch encLevel {
+		case protocol.EncryptionInitial:
+			return keyTypeServerInitial
+		case protocol.EncryptionHandshake:
+			return keyTypeServerHandshake
+		case protocol.Encryption0RTT:
+			return keyTypeServer0RTT
+		case protocol.Encryption1RTT:
+			return keyTypeServer1RTT
+		default:
+			return 0
+		}
+	}
+	switch encLevel {
+	case protocol.EncryptionInitial:
+		return keyTypeClientInitial
+	case protocol.EncryptionHandshake:
+		return keyTypeClientHandshake
+	case protocol.Encryption0RTT:
+		return keyTypeClient0RTT
+	case protocol.Encryption1RTT:
+		return keyTypeClient1RTT
+	default:
+		return 0
+	}
+}
+
+func (t keyType) String() string {
+	switch t {
+	case keyTypeServerInitial:
+		return "server_initial_secret"
+	case keyTypeClientInitial:
+		return "client_initial_secret"
+	case keyTypeServerHandshake:
+		return "server_handshake_secret"
+	case keyTypeClientHandshake:
+		return "client_handshake_secret"
+	case keyTypeServer0RTT:
+		return "server_0rtt_secret"
+	case keyTypeClient0RTT:
+		return "client_0rtt_secret"
+	case keyTypeServer1RTT:
+		return "server_1rtt_secret"
+	case keyTypeClient1RTT:
+		return "client_1rtt_secret"
+	default:
+		return "unknown key type"
+	}
+}
+
+type keyUpdateTrigger uint8
+
+const (
+	keyUpdateTLS keyUpdateTrigger = iota
+	keyUpdateRemote
+	keyUpdateLocal
+)
+
+func (t keyUpdateTrigger) String() string {
+	switch t {
+	case keyUpdateTLS:
+		return "tls"
+	case keyUpdateRemote:
+		return "remote_update"
+	case keyUpdateLocal:
+		return "local_update"
+	default:
+		return "unknown key update trigger"
+	}
+}
+
+type transportError uint64
+
+func (e transportError) String() string {
+	switch qerr.TransportErrorCode(e) {
+	case qerr.NoError:
+		return "no_error"
+	case qerr.InternalError:
+		return "internal_error"
+	case qerr.ConnectionRefused:
+		return "connection_refused"
+	case qerr.FlowControlError:
+		return "flow_control_error"
+	case qerr.StreamLimitError:
+		return "stream_limit_error"
+	case qerr.StreamStateError:
+		return "stream_state_error"
+	case qerr.FinalSizeError:
+		return "final_size_error"
+	case qerr.FrameEncodingError:
+		return "frame_encoding_error"
+	case qerr.TransportParameterError:
+		return "transport_parameter_error"
+	case qerr.ConnectionIDLimitError:
+		return "connection_id_limit_error"
+	case qerr.ProtocolViolation:
+		return "protocol_violation"
+	case qerr.InvalidToken:
+		return "invalid_token"
+	case qerr.ApplicationErrorErrorCode:
+		return "application_error"
+	case qerr.CryptoBufferExceeded:
+		return "crypto_buffer_exceeded"
+	case qerr.KeyUpdateError:
+		return "key_update_error"
+	case qerr.AEADLimitReached:
+		return "aead_limit_reached"
+	case qerr.NoViablePathError:
+		return "no_viable_path"
+	default:
+		return ""
+	}
+}
+
+type packetType logging.PacketType
+
+func (t packetType) String() string {
+	switch logging.PacketType(t) {
+	case logging.PacketTypeInitial:
+		return "initial"
+	case logging.PacketTypeHandshake:
+		return "handshake"
+	case logging.PacketTypeRetry:
+		return "retry"
+	case logging.PacketType0RTT:
+		return "0RTT"
+	case logging.PacketTypeVersionNegotiation:
+		return "version_negotiation"
+	case logging.PacketTypeStatelessReset:
+		return "stateless_reset"
+	case logging.PacketType1RTT:
+		return "1RTT"
+	case logging.PacketTypeNotDetermined:
+		return ""
+	default:
+		return "unknown packet type"
+	}
+}
+
+type packetLossReason logging.PacketLossReason
+
+func (r packetLossReason) String() string {
+	switch logging.PacketLossReason(r) {
+	case logging.PacketLossReorderingThreshold:
+		return "reordering_threshold"
+	case logging.PacketLossTimeThreshold:
+		return "time_threshold"
+	default:
+		return "unknown loss reason"
+	}
+}
+
+type packetDropReason logging.PacketDropReason
+
+func (r packetDropReason) String() string {
+	switch logging.PacketDropReason(r) {
+	case logging.PacketDropKeyUnavailable:
+		return "key_unavailable"
+	case logging.PacketDropUnknownConnectionID:
+		return "unknown_connection_id"
+	case logging.PacketDropHeaderParseError:
+		return "header_parse_error"
+	case logging.PacketDropPayloadDecryptError:
+		return "payload_decrypt_error"
+	case logging.PacketDropProtocolViolation:
+		return "protocol_violation"
+	case logging.PacketDropDOSPrevention:
+		return "dos_prevention"
+	case logging.PacketDropUnsupportedVersion:
+		return "unsupported_version"
+	case logging.PacketDropUnexpectedPacket:
+		return "unexpected_packet"
+	case logging.PacketDropUnexpectedSourceConnectionID:
+		return "unexpected_source_connection_id"
+	case logging.PacketDropUnexpectedVersion:
+		return "unexpected_version"
+	case logging.PacketDropDuplicate:
+		return "duplicate"
+	default:
+		return "unknown packet drop reason"
+	}
+}
+
+type timerType logging.TimerType
+
+func (t timerType) String() string {
+	switch logging.TimerType(t) {
+	case logging.TimerTypeACK:
+		return "ack"
+	case logging.TimerTypePTO:
+		return "pto"
+	default:
+		return "unknown timer type"
+	}
+}
+
+type congestionState logging.CongestionState
+
+func (s congestionState) String() string {
+	switch logging.CongestionState(s) {
+	case logging.CongestionStateSlowStart:
+		return "slow_start"
+	case logging.CongestionStateCongestionAvoidance:
+		return "congestion_avoidance"
+	case logging.CongestionStateRecovery:
+		return "recovery"
+	case logging.CongestionStateApplicationLimited:
+		return "application_limited"
+	default:
+		return "unknown congestion state"
+	}
+}