eth, les, light: enforce CHT checkpoints on fast-sync too

1 files changed, 5 insertions, 2 deletions

diff --git a/les/handler.go b/les/handler.go
index 2fb2067dd..718a2ed68 100644
--- a/les/handler.go
+++ b/les/handler.go
@@ -153,9 +153,12 @@ func NewProtocolManager(chainConfig *params.ChainConfig, indexerConfig *light.In
 	if disableClientRemovePeer {
 		removePeer = func(id string) {}
 	}
-
 	if lightSync {
-		manager.downloader = downloader.New(downloader.LightSync, chainDb, manager.eventMux, nil, blockchain, removePeer)
+		var checkpoint uint64
+		if cht, ok := params.TrustedCheckpoints[blockchain.Genesis().Hash()]; ok {
+			checkpoint = (cht.SectionIndex+1)*params.CHTFrequencyClient - 1
+		}
+		manager.downloader = downloader.New(downloader.LightSync, checkpoint, chainDb, manager.eventMux, nil, blockchain, removePeer)
 		manager.peers.notify((*downloaderPeerNotify)(manager))
 		manager.fetcher = newLightFetcher(manager)
 	}