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-rw-r--r--les/handler.go9
1 files changed, 8 insertions, 1 deletions
diff --git a/les/handler.go b/les/handler.go
index ad2e8058f..8cd37c7ab 100644
--- a/les/handler.go
+++ b/les/handler.go
@@ -109,6 +109,7 @@ type ProtocolManager struct {
downloader *downloader.Downloader
fetcher *lightFetcher
peers *peerSet
+ maxPeers int
SubProtocols []p2p.Protocol
@@ -216,7 +217,9 @@ func (pm *ProtocolManager) removePeer(id string) {
pm.peers.Unregister(id)
}
-func (pm *ProtocolManager) Start() {
+func (pm *ProtocolManager) Start(maxPeers int) {
+ pm.maxPeers = maxPeers
+
if pm.lightSync {
go pm.syncer()
} else {
@@ -257,6 +260,10 @@ func (pm *ProtocolManager) newPeer(pv int, nv uint64, p *p2p.Peer, rw p2p.MsgRea
// handle is the callback invoked to manage the life cycle of a les peer. When
// this function terminates, the peer is disconnected.
func (pm *ProtocolManager) handle(p *peer) error {
+ if pm.peers.Len() >= pm.maxPeers {
+ return p2p.DiscTooManyPeers
+ }
+
p.Log().Debug("Light Ethereum peer connected", "name", p.Name())
// Execute the LES handshake