From 19014a198eb1a94f884a3a7086dde85f35e9f596 Mon Sep 17 00:00:00 2001
From: Arceliar <Arceliar@users.noreply.github.com>
Date: Thu, 21 Jun 2018 10:38:31 -0500
Subject: [PATCH] randomize the delay after tcp disconnects, to prevent
 synchronization issues

---
 src/yggdrasil/tcp.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/yggdrasil/tcp.go b/src/yggdrasil/tcp.go
index 5408b6bf..1e62f469 100644
--- a/src/yggdrasil/tcp.go
+++ b/src/yggdrasil/tcp.go
@@ -17,6 +17,7 @@ package yggdrasil
 import (
 	"errors"
 	"fmt"
+  "math/rand"
 	"net"
 	"sync"
 	"sync/atomic"
@@ -112,6 +113,7 @@ func (iface *tcpInterface) call(saddr string, socksaddr *string) {
 			defer func() {
 				// Block new calls for a little while, to mitigate livelock scenarios
 				time.Sleep(tcp_timeout)
+        time.Sleep(time.Duration(rand.Intn(1000)) * time.Millisecond)
 				iface.mutex.Lock()
 				delete(iface.calls, saddr)
 				iface.mutex.Unlock()