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kcp2k V1.37 [2023-07-31]

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- fix: #47 KcpServer.Stop now clears connections so they aren't carried over to the next session
- fix: KcpPeer doesn't log 'received unreliable message while not authenticated' anymore.
This commit is contained in:
mischa 2023-07-31 18:10:23 +08:00
parent a9cbcf696e
commit e92e91dcfd
3 changed files with 19 additions and 4 deletions
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4
Assets/Mirror/Transports/KCP/kcp2k/VERSION.txt
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@ -1,3 +1,7 @@
V1.37 [2023-07-31]
- fix: #47 KcpServer.Stop now clears connections so they aren't carried over to the next session
- fix: KcpPeer doesn't log 'received unreliable message while not authenticated' anymore.
V1.36 [2023-06-08]
- fix: #49 KcpPeer.RawInput message size check now considers cookie as well
- kcp.cs cleanups

4
Assets/Mirror/Transports/KCP/kcp2k/highlevel/Extensions.cs
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@ -6,6 +6,10 @@ namespace kcp2k
{
public static class Extensions
{
// ArraySegment as HexString for convenience
public static string ToHexString(this ArraySegment<byte> segment) =>
BitConverter.ToString(segment.Array, segment.Offset, segment.Count);
// non-blocking UDP send.
// allows for reuse when overwriting KcpServer/Client (i.e. for relays).
// => wrapped with Poll to avoid WouldBlock allocating new SocketException.

15
Assets/Mirror/Transports/KCP/kcp2k/highlevel/KcpPeer.cs
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@ -586,10 +586,17 @@ void OnRawInputUnreliable(ArraySegment<byte> message)
}
else
{
// invalid unreliable messages may be random internet noise.
// show a warning, but don't disconnect.
// otherwise attackers could disconnect someone with random noise.
Log.Warning($"KcpPeer: received unreliable message while not authenticated.");
// it's common to receive unreliable messages before being
// authenticated, for example:
// - random internet noise
// - game server may send an unreliable message after authenticating,
// and the unreliable message arrives on the client before the
// 'auth_ok' message. this can be avoided by sending a final
// 'ready' message after being authenticated, but this would
// add another 'round trip time' of latency to the handshake.
//
// it's best to simply ignore invalid unreliable messages here.
// Log.Info($"KcpPeer: received unreliable message while not authenticated.");
}
}