From 9d56c7175ed6ae2e97a161d950764efc60123963 Mon Sep 17 00:00:00 2001
From: Jimmy Hu <jimmy.hu@dexon.org>
Date: Thu, 7 Mar 2019 15:49:23 +0800
Subject: core: Only accept block from nodeset (#467)

---
 core/consensus.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/core/consensus.go b/core/consensus.go
index 0f4daa7..871e855 100644
--- a/core/consensus.go
+++ b/core/consensus.go
@@ -1075,6 +1075,14 @@ func (con *Consensus) ProcessBlockRandomnessResult(
 
 // preProcessBlock performs Byzantine Agreement on the block.
 func (con *Consensus) preProcessBlock(b *types.Block) (err error) {
+	var exist bool
+	exist, err = con.nodeSetCache.Exists(b.Position.Round, b.ProposerID)
+	if err != nil {
+		return
+	}
+	if !exist {
+		return ErrProposerNotInNodeSet
+	}
 	err = con.baMgr.processBlock(b)
 	if err == nil && con.debugApp != nil {
 		con.debugApp.BlockReceived(b.Hash)
-- 
cgit