feat(openthread): handle MeshCoP mDNS service in state change callback

components/openthread/include/esp_openthread_border_router.h

@@ -76,6 +76,14 @@ esp_netif_t *esp_openthread_get_backbone_netif(void);
  */
 esp_err_t esp_openthread_set_meshcop_instance_name(const char *instance_name);
 
+/**
+ * @brief   Gets the meshcop(e) instance name.
+ *
+ * @return      The instance name.
+ *
+ */
+const char* esp_openthread_get_meshcop_instance_name(void);
+
 #ifdef __cplusplus
 }
 #endif

components/openthread/include/esp_openthread_meshcop_mdns.h

@@ -0,0 +1,41 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "esp_openthread.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Publishes the OpenThread meshcop service in mDNS
+ *
+ * @param[in] instance_name Instance name of meshcop mDNS service
+ *
+ * @return
+ *      - ESP_OK success
+ *      - ESP_ERR_NO_MEM memory error
+ *      - ESP_FAIL failed to add service
+ *
+ */
+esp_err_t esp_openthread_publish_meshcop_mdns(const char *instance_name);
+
+/**
+ * @brief   Removes the OpenThread meshcop service in mDNS
+ *
+ * @return
+ *      - ESP_OK success
+ *      - ESP_ERR_NO_MEM memory error
+ *      - ESP_FAIL failed to remove service
+ *
+ */
+esp_err_t esp_openthread_remove_meshcop_mdns(void);
+
+#ifdef __cplusplus
+}
+#endif