From 3631053c2b55b230aed5e8ba290c06ebe8767dc3 Mon Sep 17 00:00:00 2001
From: Shelikhoo <xiaokangwang@outlook.com>
Date: Sat, 17 Dec 2022 15:03:32 +0000
Subject: [PATCH] Crash process when encountered when unknown security settings
 type was supplied

---
 transport/internet/tls/config.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/transport/internet/tls/config.go b/transport/internet/tls/config.go
index 0e4824828..7f6d759b5 100644
--- a/transport/internet/tls/config.go
+++ b/transport/internet/tls/config.go
@@ -278,9 +278,11 @@ func ConfigFromStreamSettings(settings *internet.MemoryStreamConfig) *Config {
 	if settings == nil {
 		return nil
 	}
-	config, ok := settings.SecuritySettings.(*Config)
-	if !ok {
+	if settings.SecuritySettings == nil {
 		return nil
 	}
+	// Fail close for unknown TLS settings type.
+	// For TLS Clients, Security Engine should be used, instead of this.
+	config := settings.SecuritySettings.(*Config)
 	return config
 }