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ackhandler: fix handling of lost path probes on loss timer (#4956)

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Marten Seemann 2025-02-14 15:29:42 +01:00 • committed by GitHub
parent bf28da8346
commit 9f704c72cf
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2 changed files with 9 additions and 5 deletions
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1
internal/ackhandler/sent_packet_handler.go
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@ -658,6 +658,7 @@ func (h *sentPacketHandler) detectLostPathProbes(now time.Time) {
for _, f := range p.Frames {
f.Handler.OnLost(f.Frame)
}
h.appDataPackets.history.Remove(p.PacketNumber)
h.appDataPackets.history.RemovePathProbe(p.PacketNumber)
}
}

13
internal/ackhandler/sent_packet_handler_test.go
View file

@ -1205,13 +1205,19 @@ func TestSentPacketHandlerPathProbeAckAndLoss(t *testing.T) {
t1 := now
now = now.Add(100 * time.Millisecond)
_ = sendPacket(now, true)
t2 := now
now = now.Add(100 * time.Millisecond)
pn3 := sendPacket(now, true)
now = now.Add(100 * time.Millisecond)
require.Equal(t, t1.Add(pathProbePacketLossTimeout), sph.GetLossDetectionTimeout())
require.NoError(t, sph.OnLossDetectionTimeout(sph.GetLossDetectionTimeout()))
require.Equal(t, []protocol.PacketNumber{pn1}, packets.Lost)
packets.Lost = packets.Lost[:0]
// receive a delayed ACK for the path probe packet
_, err := sph.ReceivedAck(
&wire.AckFrame{AckRanges: ackRanges(pn3)},
&wire.AckFrame{AckRanges: ackRanges(pn1, pn3)},
protocol.Encryption1RTT,
now,
)
@ -1219,8 +1225,5 @@ func TestSentPacketHandlerPathProbeAckAndLoss(t *testing.T) {
require.Equal(t, []protocol.PacketNumber{pn3}, packets.Acked)
require.Empty(t, packets.Lost)
require.Equal(t, t1.Add(pathProbePacketLossTimeout), sph.GetLossDetectionTimeout())
require.NoError(t, sph.OnLossDetectionTimeout(sph.GetLossDetectionTimeout()))
require.Equal(t, []protocol.PacketNumber{pn1}, packets.Lost)
require.Equal(t, t2.Add(pathProbePacketLossTimeout), sph.GetLossDetectionTimeout())
}