Add whitelistalwaysrelay option

src/init.cpp

@@ -817,6 +817,16 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
 #endif
     }
 
+    // disable walletbroadcast in blocksonly mode
+    if (GetBoolArg("-blocksonly", false)) {
+        if (SoftSetBoolArg("-whitelistalwaysrelay", false))
+            LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistalwaysrelay=0\n", __func__);
+#ifdef ENABLE_WALLET
+        if (SoftSetBoolArg("-walletbroadcast", false))
+            LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
+#endif
+    }
+    
     // Make sure enough file descriptors are available
     int nBind = std::max((int)mapArgs.count("-bind") + (int)mapArgs.count("-whitebind"), 1);
     int nUserMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS);

src/main.cpp

@@ -4465,7 +4465,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             assert(recentRejects);
             recentRejects->insert(tx.GetHash());
 
-            if (pfrom->fWhitelisted) {
+            if (pfrom->fWhitelisted && GetBoolArg("-whitelistalwaysrelay", DEFAULT_WHITELISTALWAYSRELAY)) {
                 // Always relay transactions received from whitelisted peers, even
                 // if they were rejected from the mempool, allowing the node to
                 // function as a gateway for nodes hidden behind it.

src/main.h

@@ -41,6 +41,8 @@ struct CNodeStateStats;
 
 /** Default for accepting alerts from the P2P network. */
 static const bool DEFAULT_ALERTS = true;
+/** Default for DEFAULT_WHITELISTALWAYSRELAY. */
+static const bool DEFAULT_WHITELISTALWAYSRELAY = true;
 /** Default for -minrelaytxfee, minimum relay fee for transactions */
 static const unsigned int DEFAULT_MIN_RELAY_TX_FEE = 1000;
 /** Default for -maxorphantx, maximum number of orphan transactions kept in memory */