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keep track of ECN counts on received packets

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This commit is contained in:
Marten Seemann
2020-08-10 13:02:16 +07:00
parent 13fa0bcdd1
commit fa4f0a9e7a
9 changed files with 144 additions and 92 deletions
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9
internal/ackhandler/received_packet_handler.go
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@@ -38,6 +38,7 @@ func newReceivedPacketHandler(
func (h *receivedPacketHandler) ReceivedPacket(
pn protocol.PacketNumber,
ecn protocol.ECN,
encLevel protocol.EncryptionLevel,
rcvTime time.Time,
shouldInstigateAck bool,
@@ -45,20 +46,20 @@ func (h *receivedPacketHandler) ReceivedPacket(
h.sentPackets.ReceivedPacket(encLevel)
switch encLevel {
case protocol.EncryptionInitial:
h.initialPackets.ReceivedPacket(pn, rcvTime, shouldInstigateAck)
h.initialPackets.ReceivedPacket(pn, ecn, rcvTime, shouldInstigateAck)
case protocol.EncryptionHandshake:
h.handshakePackets.ReceivedPacket(pn, rcvTime, shouldInstigateAck)
h.handshakePackets.ReceivedPacket(pn, ecn, rcvTime, shouldInstigateAck)
case protocol.Encryption0RTT:
if h.lowest1RTTPacket != protocol.InvalidPacketNumber && pn > h.lowest1RTTPacket {
return fmt.Errorf("received packet number %d on a 0-RTT packet after receiving %d on a 1-RTT packet", pn, h.lowest1RTTPacket)
}
h.appDataPackets.ReceivedPacket(pn, rcvTime, shouldInstigateAck)
h.appDataPackets.ReceivedPacket(pn, ecn, rcvTime, shouldInstigateAck)
case protocol.Encryption1RTT:
if h.lowest1RTTPacket == protocol.InvalidPacketNumber || pn < h.lowest1RTTPacket {
h.lowest1RTTPacket = pn
}
h.appDataPackets.IgnoreBelow(h.sentPackets.GetLowestPacketNotConfirmedAcked())
h.appDataPackets.ReceivedPacket(pn, rcvTime, shouldInstigateAck)
h.appDataPackets.ReceivedPacket(pn, ecn, rcvTime, shouldInstigateAck)
default:
panic(fmt.Sprintf("received packet with unknown encryption level: %s", encLevel))
}