From 19a6f718d34ef607db566972ed2b73d44737bab7 Mon Sep 17 00:00:00 2001
From: Alexander Block <ablock84@gmail.com>
Date: Thu, 6 Dec 2018 08:07:33 +0100
Subject: [PATCH] Don't respond with getdata for legacy inv types when spork15
 is active (#2528)

Avoid unnecessary traffic from non-upgraded nodes.
---
 src/net_processing.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 2e45b65dd..6cfa51662 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -1786,6 +1786,18 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             }
             else
             {
+                static std::set<int> legacyMNObjs = {
+                        MSG_MASTERNODE_PAYMENT_VOTE,
+                        MSG_MASTERNODE_PAYMENT_BLOCK,
+                        MSG_MASTERNODE_ANNOUNCE,
+                        MSG_MASTERNODE_PING,
+                        MSG_MASTERNODE_VERIFY,
+                };
+                if (legacyMNObjs.count(inv.type) && deterministicMNManager->IsDeterministicMNsSporkActive()) {
+                    LogPrint("net", "ignoring (%s) inv of legacy type %d peer=%d\n", inv.hash.ToString(), inv.type, pfrom->id);
+                    continue;
+                }
+
                 pfrom->AddInventoryKnown(inv);
                 if (fBlocksOnly)
                     LogPrint("net", "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id);