From ce321837497bb701d22d3aaf3fcd8e26e310d21f Mon Sep 17 00:00:00 2001
From: Aditya Patwardhan <aditya.patwardhan@espressif.com>
Date: Tue, 6 Sep 2022 08:54:04 +0530
Subject: [PATCH] tcp_transport: Add support of setting the common name fot the
 TLS context

---
 .../tcp_transport/include/esp_transport_ssl.h | 29 ++++++++++---------
 components/tcp_transport/transport_ssl.c      |  6 ++++
 tools/ci/check_copyright_ignore.txt           |  1 -
 3 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/components/tcp_transport/include/esp_transport_ssl.h b/components/tcp_transport/include/esp_transport_ssl.h
index b31e5b4495..30e6db9e65 100644
--- a/components/tcp_transport/include/esp_transport_ssl.h
+++ b/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
  *
diff --git a/components/tcp_transport/transport_ssl.c b/components/tcp_transport/transport_ssl.c
index bd86b37a2c..15753156d2 100644
--- a/components/tcp_transport/transport_ssl.c
+++ b/components/tcp_transport/transport_ssl.c
@@ -408,6 +408,12 @@ void esp_transport_ssl_skip_common_name_check(esp_transport_handle_t t)
     ssl->cfg.skip_common_name = true;
 }
 
+void esp_transport_ssl_set_common_name(esp_transport_handle_t t, const char *common_name)
+{
+    GET_SSL_FROM_TRANSPORT_OR_RETURN(ssl, t);
+    ssl->cfg.common_name = common_name;
+}
+
 #ifdef CONFIG_ESP_TLS_USE_SECURE_ELEMENT
 void esp_transport_ssl_use_secure_element(esp_transport_handle_t t)
 {
diff --git a/tools/ci/check_copyright_ignore.txt b/tools/ci/check_copyright_ignore.txt
index ddae9105ce..ee8ade8aac 100644
--- a/tools/ci/check_copyright_ignore.txt
+++ b/tools/ci/check_copyright_ignore.txt
@@ -1260,7 +1260,6 @@ components/spi_flash/test/test_mmap.c
 components/spi_flash/test/test_out_of_bounds_write.c
 components/spi_flash/test/test_partition_ext.c
 components/spi_flash/test/test_spi_flash.c
-components/tcp_transport/include/esp_transport_ssl.h
 components/tcp_transport/include/esp_transport_tcp.h
 components/tcp_transport/include/esp_transport_ws.h
 components/tcp_transport/test/tcp_transport_fixtures.h