From 6113b547f4cce8be732bf45687a74eccf4a3abfc Mon Sep 17 00:00:00 2001
From: MarcoFalke <falke.marco@gmail.com>
Date: Wed, 14 Oct 2020 10:31:42 +0200
Subject: [PATCH] net: Send post-verack handshake messages at most once

Github-Pull: #20146
Rebased-From: fa1f6f237d02265af616129402fa2b8a3019dda5
---
 src/net_processing.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 8572ebb9f72..f6d4e113ae9 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -2119,6 +2119,8 @@ bool ProcessMessage(CNode* pfrom, const std::string& msg_type, CDataStream& vRec
 
     if (msg_type == NetMsgType::VERACK)
     {
+        if (pfrom->fSuccessfullyConnected) return true;
+
         pfrom->SetRecvVersion(std::min(pfrom->nVersion.load(), PROTOCOL_VERSION));
 
         if (!pfrom->fInbound) {