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only ignore SYN packet because it can be the start of a QUIC handshake too

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Christian Ulrich 2020-11-18 00:10:36 +01:00
parent 5f03151f81
commit a04254b07e
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1 changed files with 3 additions and 1 deletions
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puncher.nim
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@ -70,7 +70,9 @@ proc handleMsg*(puncher: Puncher, msg: string, peerIp: IpAddress,
peerPort: Port) = peerPort: Port) =
## Handles an incoming UDP message which may complete the Futures returned by ## Handles an incoming UDP message which may complete the Futures returned by
## ``initiate`` and ``respond``. ## ``initiate`` and ``respond``.
if msg != "ACK": if msg == "SYN":
# We received a SYN packet. We ignore it because we expected it to be
# filtered by our NAT.
return return
echo &"handling ACK message from {peerIp}:{peerPort}" echo &"handling ACK message from {peerIp}:{peerPort}"
let (_, myPort) = puncher.sock.getLocalAddr() let (_, myPort) = puncher.sock.getLocalAddr()