From 23d2427ce77a0f1d7758ebcfe32d7a0ada4ca546 Mon Sep 17 00:00:00 2001
From: Dan Laine <daniel.laine@avalabs.org>
Date: Tue, 31 Mar 2020 14:12:23 -0400
Subject: [PATCH] forbid new blockchains from being validated by default subnet

---
 vms/platformvm/create_chain_tx.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/vms/platformvm/create_chain_tx.go b/vms/platformvm/create_chain_tx.go
index 14d7d93..241f052 100644
--- a/vms/platformvm/create_chain_tx.go
+++ b/vms/platformvm/create_chain_tx.go
@@ -92,6 +92,8 @@ func (tx *CreateChainTx) SyntacticVerify() error {
 		return errInvalidID
 	case tx.VMID.IsZero():
 		return errInvalidVMID
+	case tx.SubnetID.Equals(DefaultSubnetID):
+		return errDSCantValidate
 	case !ids.IsSortedAndUniqueIDs(tx.FxIDs):
 		return errFxIDsNotSortedAndUnique
 	case !crypto.IsSortedAndUniqueSECP2561RSigs(tx.ControlSigs):