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add tracing and qlogging of state transitions for ECN validation

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This commit is contained in:
Marten Seemann
2023-09-01 14:17:59 +07:00
parent ad63e2a40a
commit ffe6546833
11 changed files with 174 additions and 13 deletions
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32
logging/types.go
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@@ -92,3 +92,35 @@ const (
// CongestionStateApplicationLimited means that the congestion controller is application limited
CongestionStateApplicationLimited
)
// ECNState is the state of the ECN state machine (see Appendix A.4 of RFC 9000)
type ECNState uint8
const (
// ECNStateTesting is the testing state
ECNStateTesting ECNState = 1 + iota
// ECNStateUnknown is the unknown state
ECNStateUnknown
// ECNStateFailed is the failed state
ECNStateFailed
// ECNStateCapable is the capable state
ECNStateCapable
)
// ECNStateTrigger is a trigger for an ECN state transition.
type ECNStateTrigger uint8
const (
ECNTriggerNoTrigger ECNStateTrigger = iota
// ECNFailedNoECNCounts is emitted when an ACK acknowledges ECN-marked packets,
// but doesn't contain any ECN counts
ECNFailedNoECNCounts
// ECNFailedDecreasedECNCounts is emitted when an ACK frame decreases ECN counts
ECNFailedDecreasedECNCounts
// ECNFailedLostAllTestingPackets is emitted when all ECN testing packets are declared lost
ECNFailedLostAllTestingPackets
// ECNFailedMoreECNCountsThanSent is emitted when an ACK contains more ECN counts than ECN-marked packets were sent
ECNFailedMoreECNCountsThanSent
// ECNFailedTooFewECNCounts is emitted when contains fewer ECT(0) / ECT(1) counts than it acknowledges packets
ECNFailedTooFewECNCounts
)