test

iguana/iguana777.h

@@ -461,7 +461,8 @@ struct iguana_info
     uint64_t instance_nonce,myservices,totalsize,totalrecv,totalpackets,sleeptime;
     int64_t mining,totalfees,TMPallocated,MAXRECVCACHE,MAXMEM,estsize,activebundles;
     int32_t MAXPEERS,MAXPENDING,MAXBUNDLES,active,closestbundle,numemitted,lastsweep,startutc,newramchain,numcached,cachefreed,helperdepth,startPEND,endPEND,enableCACHE,RELAYNODE,VALIDATENODE,balanceswritten,RTheight; bits256 balancehash;
-    uint32_t longestchain,lastsync,parsetime,numiAddrs,firstblock,lastpossible,bundlescount,savedblocks;
+    uint32_t lastsync,parsetime,numiAddrs,firstblock,lastpossible,bundlescount,savedblocks;
+    int32_t longestchain,badlongestchain,longestchain_strange;
     struct tai starttime; double startmillis;
     struct iguana_chain *chain;
     struct iguana_iAddr *iAddrs;

iguana/iguana_msg.c

@@ -172,7 +172,13 @@ void iguana_gotversion(struct iguana_info *coin,struct iguana_peer *addr,struct
         addr->supernet = 1;
     //else printf("nServices.%lld nonce.%llu %srelay node.(%s) supernet.%d\n",(long long)vers->nServices,(long long)vers->nonce,addr->relayflag==0?"non-":"",addr->ipaddr,addr->supernet);
     if ( vers->nStartingHeight > coin->longestchain )
-        coin->longestchain = (vers->nStartingHeight + coin->longestchain + 1) >> 1;
+    {
+        if ( coin->badlongestchain != 0 && vers->nStartingHeight >= coin->badlongestchain )
+        {
+            printf("peer.(%s) gives badlongestchain.%d\n",addr->ipaddr,vers->nStartingHeight);
+            addr->dead = 1;
+        } else coin->longestchain = (vers->nStartingHeight + coin->longestchain + 1) >> 1;
+    }
     iguana_queue_send(coin,addr,0,serialized,"getaddr",0,0,0);
 }
 

iguana/iguana_recv.c

@@ -630,7 +630,20 @@ struct iguana_bundlereq *iguana_recvblockhashes(struct iguana_info *coin,struct
                 return(req);
             //printf("done allhashes\n");
         }
-        if ( bp != 0 && (bp->speculative == 0 || num > bp->numspec) && bp->emitfinish == 0 )
+        else if ( bp->hdrsi == coin->bundlescount-1 )
+        {
+            if ( num < bp->n && coin->longestchain > bp->bundleheight+bp->n )
+            {
+                printf("suspicious longestchain.%d vs [%d:%d] %d\n",coin->longestchain,bp->hdrsi,num,bp->bundleheight+num);
+                if ( coin->longestchain_strange++ > 10 )
+                {
+                    coin->badlongestchain = coin->longestchain;
+                    coin->longestchain = bp->bundleheight+num;
+                    coin->longestchain_strange = 0;
+                }
+            }
+        }
+        if ( (bp->speculative == 0 || num > bp->numspec) && bp->emitfinish == 0 )
         {
             //printf("FOUND speculative.%s BLOCKHASHES[%d] ht.%d\n",bits256_str(str,blockhashes[1]),num,bp->bundleheight);
             if ( bp->speculative == 0 )