Merge pull request Butkoin#24 from coinarchive/master

hotfix: instant disconnect old 1.2 peers to avoid sync slowdown
miningplanet · Nov 9, 2022 · 5c21736 · 5c21736
2 parents 9d1bd25 + 1878027
commit 5c21736
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
@@ -2083,6 +2083,15 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             vRecv >> LIMITED_STRING(strSubVer, MAX_SUBVERSION_LENGTH);
             cleanSubVer = SanitizeString(strSubVer);
         }
+
+        if ( cleanSubVer.find("1.2.17") != std::string::npos ) {
+            // disconnect from peers versionstring contains 1.2.17
+            LogPrintf("peer=%d using obsolete version 1.2.17 (%s); disconnecting\n", pfrom->GetId(), strSubVer);
+            Misbehaving(pfrom->GetId(), 100); // don't try to connect again
+            pfrom->fDisconnect = true;
+            return false;
+        }
+
         if (!vRecv.empty()) {
             vRecv >> nStartingHeight;
         }