From dae3aee5ff7ebcd24a50937a1d0ae080c2f1d897 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Tue, 18 Feb 2020 12:24:05 +0100
Subject: [PATCH] les: add bootstrap nodes as initial discoveries (#20688)

---
 les/serverpool.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/les/serverpool.go b/les/serverpool.go
index 37621dc63..f8fd72169 100644
--- a/les/serverpool.go
+++ b/les/serverpool.go
@@ -179,6 +179,19 @@ func (pool *serverPool) start(server *p2p.Server, topic discv5.Topic) {
 	pool.checkDial()
 	pool.wg.Add(1)
 	go pool.eventLoop()
+
+	// Inject the bootstrap nodes as initial dial candiates.
+	pool.wg.Add(1)
+	go func() {
+		defer pool.wg.Done()
+		for _, n := range server.BootstrapNodes {
+			select {
+			case pool.discNodes <- n:
+			case <-pool.closeCh:
+				return
+			}
+		}
+	}()
 }
 
 func (pool *serverPool) stop() {