From 330e1670d683f630f767877d328f73d64a1d6529 Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Mon, 13 Jul 2020 18:07:02 +0300
Subject: [PATCH] consensus: limit payload verification time with GAS

Follow C# implementation.
---
 pkg/consensus/payload.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkg/consensus/payload.go b/pkg/consensus/payload.go
index 80f56f0f7..5bfde2a75 100644
--- a/pkg/consensus/payload.go
+++ b/pkg/consensus/payload.go
@@ -49,6 +49,8 @@ const (
 	commitType          messageType = 0x30
 	recoveryRequestType messageType = 0x40
 	recoveryMessageType messageType = 0x41
+
+	payloadGasLimit = 2000000 // 0.02 GAS
 )
 
 // ViewNumber implements payload.ConsensusPayload interface.
@@ -221,6 +223,7 @@ func (p *Payload) Verify(scriptHash util.Uint160) bool {
 	}
 
 	v := vm.New()
+	v.GasLimit = payloadGasLimit
 	v.RegisterInteropGetter(crypto.GetInterop(&interop.Context{Container: p}))
 	v.LoadScript(verification)
 	v.LoadScript(p.Witness.InvocationScript)