From e10d5d76f57fa936b8e96cd65ef4680d0dcfbb4d Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Sun, 10 Aug 2014 18:19:49 +0400
Subject: [PATCH] Out-of-order message recieved printing

Signed-off-by: Sergey Matveev <stargrave@stargrave.org>
---
 README   | 1 +
 govpn.go | 1 +
 2 files changed, 2 insertions(+)

diff --git a/README b/README
index 42c9fa1..c9671d0 100644
--- a/README
+++ b/README
@@ -44,6 +44,7 @@ CONSOLE OUTPUT LEGEND
 
 B -- bad UDP packet (some system error)
 T -- bad tag on packet (MiTM, unordered packet)
+R -- invalid sequence number (MiTM, unordered packet)
 [HS?] -- unknown handshake message
 w -- successful write to remote peer
 r -- successful read from remote peer
diff --git a/govpn.go b/govpn.go
index e49f81c..412deb7 100644
--- a/govpn.go
+++ b/govpn.go
@@ -195,6 +195,7 @@ func main() {
 			}
 			nonceRecv, _ := binary.Uvarint(udpPkt.data[:8])
 			if peer.nonceRecv >= nonceRecv {
+				fmt.Print("R")
 				continue
 			}
 			copy(tag[:], udpPkt.data[len(udpPkt.data)-poly1305.TagSize:])
-- 
2.44.0