From d976a84d7e238d6bbf24216ff6b641cf6ba7f81e Mon Sep 17 00:00:00 2001
From: maddie <maddie@users.noreply.github.com>
Date: Tue, 13 Jul 2021 23:25:43 +0800
Subject: [PATCH] derp: allow self node when verifying clients

Fixes #2408

Signed-off-by: Maddie Zhan <maddie.zhan@cynovan.com>
---
 derp/derp_server.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/derp/derp_server.go b/derp/derp_server.go
index 06a97499b..32b09fb7b 100644
--- a/derp/derp_server.go
+++ b/derp/derp_server.go
@@ -797,6 +797,9 @@ func (s *Server) verifyClient(clientKey key.Public, info *clientInfo) error {
 	if err != nil {
 		return fmt.Errorf("failed to query local tailscaled status: %w", err)
 	}
+	if clientKey == status.Self.PublicKey {
+		return nil
+	}
 	if _, exists := status.Peer[clientKey]; !exists {
 		return fmt.Errorf("client %v not in set of peers", clientKey)
 	}