tcp_transport: Add support of setting the common name fot the TLS

context

components/tcp_transport/include/esp_transport_ssl.h

@@ -1,16 +1,8 @@
-// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #ifndef _ESP_TRANSPORT_SSL_H_
 #define _ESP_TRANSPORT_SSL_H_
@@ -142,6 +134,17 @@ void esp_transport_ssl_set_alpn_protocol(esp_transport_handle_t t, const char **
  */
 void esp_transport_ssl_skip_common_name_check(esp_transport_handle_t t);
 
+/**
+ * @brief      Set the server certificate's common name field
+ *
+ * @note
+ *             If non-NULL, server certificate CN must match this name,
+ *             If NULL, server certificate CN must match hostname.
+ * @param      t             ssl transport
+ *             common_name   A string containing the common name to be set
+ */
+void esp_transport_ssl_set_common_name(esp_transport_handle_t t, const char *common_name);
+
 /**
  * @brief      Set the ssl context to use secure element (atecc608a) for client(device) private key and certificate
  *