cloudflared-mirror/quic/tracing.go

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package quic
import (
"context"
"net"
"time"
"github.com/quic-go/quic-go/logging"
"github.com/rs/zerolog"
)
// QUICTracer is a wrapper to create new quicConnTracer
type tracer struct {
logger *zerolog.Logger
config *tracerConfig
}
type tracerConfig struct {
isClient bool
// Only client has an index
index uint8
}
func NewClientTracer(logger *zerolog.Logger, index uint8) func(context.Context, logging.Perspective, logging.ConnectionID) logging.ConnectionTracer {
t := &tracer{
logger: logger,
config: &tracerConfig{
isClient: true,
index: index,
},
}
return t.TracerForConnection
}
func NewServerTracer(logger *zerolog.Logger) logging.Tracer {
return &tracer{
logger: logger,
config: &tracerConfig{
isClient: false,
},
}
}
func (t *tracer) TracerForConnection(_ctx context.Context, _p logging.Perspective, _odcid logging.ConnectionID) logging.ConnectionTracer {
if t.config.isClient {
return newConnTracer(newClientCollector(t.config.index))
}
return newConnTracer(newServiceCollector())
}
func (*tracer) SentPacket(net.Addr, *logging.Header, logging.ByteCount, []logging.Frame) {
}
func (*tracer) SentVersionNegotiationPacket(_ net.Addr, dest, src logging.ArbitraryLenConnectionID, _ []logging.VersionNumber) {
}
func (*tracer) DroppedPacket(net.Addr, logging.PacketType, logging.ByteCount, logging.PacketDropReason) {
}
var _ logging.Tracer = (*tracer)(nil)
// connTracer collects connection level metrics
type connTracer struct {
metricsCollector MetricsCollector
}
var _ logging.ConnectionTracer = (*connTracer)(nil)
func newConnTracer(metricsCollector MetricsCollector) logging.ConnectionTracer {
return &connTracer{
metricsCollector: metricsCollector,
}
}
func (ct *connTracer) StartedConnection(local, remote net.Addr, srcConnID, destConnID logging.ConnectionID) {
ct.metricsCollector.startedConnection()
}
func (ct *connTracer) ClosedConnection(err error) {
ct.metricsCollector.closedConnection(err)
}
func (ct *connTracer) SentPacket(hdr *logging.ExtendedHeader, packetSize logging.ByteCount, ack *logging.AckFrame, frames []logging.Frame) {
ct.metricsCollector.sentPackets(packetSize)
}
func (ct *connTracer) ReceivedPacket(hdr *logging.ExtendedHeader, size logging.ByteCount, frames []logging.Frame) {
ct.metricsCollector.receivedPackets(size)
}
func (ct *connTracer) BufferedPacket(pt logging.PacketType, size logging.ByteCount) {
ct.metricsCollector.bufferedPackets(pt)
}
func (ct *connTracer) DroppedPacket(pt logging.PacketType, size logging.ByteCount, reason logging.PacketDropReason) {
ct.metricsCollector.droppedPackets(pt, size, reason)
}
func (ct *connTracer) LostPacket(level logging.EncryptionLevel, number logging.PacketNumber, reason logging.PacketLossReason) {
ct.metricsCollector.lostPackets(reason)
}
func (ct *connTracer) UpdatedMetrics(rttStats *logging.RTTStats, cwnd, bytesInFlight logging.ByteCount, packetsInFlight int) {
ct.metricsCollector.updatedRTT(rttStats)
}
func (ct *connTracer) NegotiatedVersion(chosen logging.VersionNumber, clientVersions, serverVersions []logging.VersionNumber) {
}
func (ct *connTracer) SentTransportParameters(parameters *logging.TransportParameters) {
}
func (ct *connTracer) ReceivedTransportParameters(parameters *logging.TransportParameters) {
}
func (ct *connTracer) RestoredTransportParameters(parameters *logging.TransportParameters) {
}
func (ct *connTracer) SentLongHeaderPacket(hdr *logging.ExtendedHeader, size logging.ByteCount, ack *logging.AckFrame, frames []logging.Frame) {
}
func (ct *connTracer) SentShortHeaderPacket(hdr *logging.ShortHeader, size logging.ByteCount, ack *logging.AckFrame, frames []logging.Frame) {
}
func (ct *connTracer) ReceivedVersionNegotiationPacket(dest, src logging.ArbitraryLenConnectionID, _ []logging.VersionNumber) {
}
func (ct *connTracer) ReceivedRetry(header *logging.Header) {
}
func (ct *connTracer) ReceivedLongHeaderPacket(hdr *logging.ExtendedHeader, size logging.ByteCount, frames []logging.Frame) {
}
func (ct *connTracer) ReceivedShortHeaderPacket(hdr *logging.ShortHeader, size logging.ByteCount, frames []logging.Frame) {
}
func (ct *connTracer) AcknowledgedPacket(level logging.EncryptionLevel, number logging.PacketNumber) {
}
func (ct *connTracer) UpdatedCongestionState(state logging.CongestionState) {
}
func (ct *connTracer) UpdatedPTOCount(value uint32) {
}
func (ct *connTracer) UpdatedKeyFromTLS(level logging.EncryptionLevel, perspective logging.Perspective) {
}
func (ct *connTracer) UpdatedKey(generation logging.KeyPhase, remote bool) {
}
func (ct *connTracer) DroppedEncryptionLevel(level logging.EncryptionLevel) {
}
func (ct *connTracer) DroppedKey(generation logging.KeyPhase) {
}
func (ct *connTracer) SetLossTimer(timerType logging.TimerType, level logging.EncryptionLevel, time time.Time) {
}
func (ct *connTracer) LossTimerExpired(timerType logging.TimerType, level logging.EncryptionLevel) {
}
func (ct *connTracer) LossTimerCanceled() {
}
func (ct *connTracer) Close() {
}
func (ct *connTracer) Debug(name, msg string) {
}
type quicLogger struct {
logger *zerolog.Logger
connectionID string
}
func (qt *quicLogger) Write(p []byte) (n int, err error) {
qt.logger.Trace().Str("quicConnection", qt.connectionID).RawJSON("event", p).Msg("Quic event")
return len(p), nil
}
func (*quicLogger) Close() error {
return nil
}