From d60857e1a7d82735c01f893f644455fc7ccc423f Mon Sep 17 00:00:00 2001 From: Avery Pennarun Date: Tue, 15 Oct 2019 22:39:44 -0400 Subject: [PATCH] device: add debug logs describing handshake rejection Useful in testing when bad network stacks repeat or batch large numbers of packets. Signed-off-by: Avery Pennarun --- device/noise-protocol.go | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/device/noise-protocol.go b/device/noise-protocol.go index 6dcc831..a848c47 100644 --- a/device/noise-protocol.go +++ b/device/noise-protocol.go @@ -314,11 +314,15 @@ func (device *Device) ConsumeMessageInitiation(msg *MessageInitiation) *Peer { // protect against replay & flood - var ok bool - ok = timestamp.After(handshake.lastTimestamp) - ok = ok && time.Since(handshake.lastInitiationConsumption) > HandshakeInitationRate + replay := !timestamp.After(handshake.lastTimestamp) + flood := time.Since(handshake.lastInitiationConsumption) <= HandshakeInitationRate handshake.mutex.RUnlock() - if !ok { + if replay { + device.log.Debug.Printf("%v - ConsumeMessageInitiation: handshake replay @ %v\n", peer, timestamp) + return nil + } + if flood { + device.log.Debug.Printf("%v - ConsumeMessageInitiation: handshake flood\n", peer) return nil }