configuration UPDATE file and func names unified
diff --git a/src/server_config.h b/src/server_config.h
new file mode 100644
index 0000000..189431b
--- /dev/null
+++ b/src/server_config.h
@@ -0,0 +1,88 @@
+/**
+ * @file server_config.h
+ * @author Roman Janota <janota@cesnet.cz>
+ * @brief libnetconf2 server configuration
+ *
+ * @copyright
+ * Copyright (c) 2015 - 2021 CESNET, z.s.p.o.
+ *
+ * This source code is licensed under BSD 3-Clause License (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ */
+
+#ifndef NC_CONFIG_SERVER_H_
+#define NC_CONFIG_SERVER_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <libyang/libyang.h>
+#include <stdint.h>
+
+#include "netconf.h"
+#include "session.h"
+#include "session_p.h"
+
+/**
+ * @brief Configure server based on the given data.
+ *
+ * Expected data is a validated instance of a ietf-netconf-server YANG data.
+ * The data must be in the diff format and supported operations are: create, replace,
+ * delete and none. Context must already have implemented the required modules, see
+ * ::nc_config_load_modules().
+ *
+ * @param[in] data ietf-netconf-server YANG data.
+ * @return 0 on success, 1 on error.
+ */
+int nc_server_config_setup(const struct lyd_node *data);
+
+/**
+ * @brief Configure server based on the given ietf-netconf-server YANG data.
+ * Wrapper around ::nc_config_setup_server() hiding work with parsing the data.
+ *
+ * @param[in] ctx libyang context.
+ * @param[in] path Path to the file with YANG data in XML format.
+ * @return 0 on success, 1 on error.
+ */
+int nc_server_config_setup_path(const struct ly_ctx *ctx, const char *path);
+
+/**
+ * @brief Implements all the required modules and their features in the context.
+ * Needs to be called before any other configuration functions.
+ *
+ * If ctx is :
+ * - NULL: a new context will be created and if the call is successful you have to free it,
+ * - non NULL: modules will simply be implemented.
+ *
+ * Implemented modules: ietf-netconf-server, ietf-x509-cert-to-name, ietf-crypto-types,
+ * ietf-tcp-common, ietf-ssh-common, iana-ssh-encryption-algs, iana-ssh-key-exchange-algs,
+ * iana-ssh-mac-algs, iana-ssh-public-key-algs, ietf-keystore, ietf-ssh-server, ietf-truststore,
+ * ietf-tls-server and libnetconf2-netconf-server.
+ *
+ * @param[in, out] ctx Optional context in which the modules will be implemented. Created if ctx is null.
+ * @return 0 on success, 1 on error.
+ */
+int nc_server_config_load_modules(struct ly_ctx **ctx);
+
+/**
+ * @brief Configures the listen subtree in the ietf-netconf-server module.
+ *
+ * @param[in] op Operation to be done on the subtree. Only does something if the operation is NC_OP_DELETE.
+ * @return 0 on success, 1 on error.
+ */
+int nc_server_config_listen(NC_OPERATION op);
+
+/**
+ * @brief Deletes every key stored in the keystore.
+ */
+void nc_server_config_del_keystore(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NC_SESSION_SERVER_H_ */