From 4b2f5072e801915126bfe7faea9ba5b38e0d097a Mon Sep 17 00:00:00 2001
From: rene <41963722+renaynay@users.noreply.github.com>
Date: Wed, 24 Jul 2024 12:41:34 +0200
Subject: [PATCH] fix(nodebuilder/p2p): LNs restricted to acting as DHT clients
 *only* (#3590)

Resolves https://github.com/celestiaorg/celestia-node/issues/3574

Potentially targets https://github.com/celestiaorg/celestia-node/issues/3573
---
 nodebuilder/p2p/routing.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/nodebuilder/p2p/routing.go b/nodebuilder/p2p/routing.go
index e9eccf1d53..4006ec03a8 100644
--- a/nodebuilder/p2p/routing.go
+++ b/nodebuilder/p2p/routing.go
@@ -23,7 +23,6 @@ func contentRouting(r routing.PeerRouting) routing.ContentRouting {
 // Basically, this provides a way to discover peer addresses by respecting public keys.
 func peerRouting(cfg Config, tp node.Type, params routingParams) (routing.PeerRouting, error) {
 	opts := []dht.Option{
-		dht.Mode(dht.ModeAuto),
 		dht.BootstrapPeers(params.Peers...),
 		dht.ProtocolPrefix(protocol.ID(fmt.Sprintf("/celestia/%s", params.Net))),
 		dht.Datastore(params.DataStore),
@@ -36,10 +35,17 @@ func peerRouting(cfg Config, tp node.Type, params routingParams) (routing.PeerRo
 		)
 	}
 
-	if tp == node.Bridge || tp == node.Full {
+	switch tp {
+	case node.Light:
+		opts = append(opts,
+			dht.Mode(dht.ModeClient),
+		)
+	case node.Bridge, node.Full:
 		opts = append(opts,
 			dht.Mode(dht.ModeServer),
 		)
+	default:
+		return nil, fmt.Errorf("unsupported node type: %s", tp)
 	}
 
 	d, err := dht.New(params.Ctx, params.Host, opts...)