/** @file
 * @brief Routines for network subsystem initialization.
 */

/*
 * Copyright (c) 2017 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#ifndef ZEPHYR_INCLUDE_NET_NET_CONFIG_H_
#define ZEPHYR_INCLUDE_NET_NET_CONFIG_H_

#include <zephyr/types.h>
#include <device.h>
#include <net/net_if.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief Network configuration library
 * @defgroup net_config Network Configuration Library
 * @ingroup networking
 * @{
 */

/* Flags that tell what kind of functionality is needed by the client. */
/**
 * @brief Application needs routers to be set so that connectivity to remote
 * network is possible. For IPv6 networks, this means that the device should
 * receive IPv6 router advertisement message before continuing.
 */
#define NET_CONFIG_NEED_ROUTER 0x00000001

/**
 * @brief Application needs IPv6 subsystem configured and initialized.
 * Typically this means that the device has IPv6 address set.
 */
#define NET_CONFIG_NEED_IPV6   0x00000002

/**
 * @brief Application needs IPv4 subsystem configured and initialized.
 * Typically this means that the device has IPv4 address set.
 */
#define NET_CONFIG_NEED_IPV4   0x00000004

/**
 * @brief Initialize this network application.
 *
 * @details This will call net_config_init_by_iface() with NULL network
 *          interface.
 *
 * @param app_info String describing this application.
 * @param flags Flags related to services needed by the client.
 * @param timeout How long to wait the network setup before continuing
 * the startup.
 *
 * @return 0 if ok, <0 if error.
 */
int net_config_init(const char *app_info, uint32_t flags, int32_t timeout);

/**
 * @brief Initialize this network application using a specific network
 * interface.
 *
 * @details If network interface is set to NULL, then the default one
 *          is used in the configuration.
 *
 * @param iface Initialize networking using this network interface.
 * @param app_info String describing this application.
 * @param flags Flags related to services needed by the client.
 * @param timeout How long to wait the network setup before continuing
 * the startup.
 *
 * @return 0 if ok, <0 if error.
 */
int net_config_init_by_iface(struct net_if *iface, const char *app_info,
			     uint32_t flags, int32_t timeout);

/**
 * @brief Initialize this network application.
 *
 * @details If CONFIG_NET_CONFIG_AUTO_INIT is set, then this function is called
 *          automatically when the device boots. If that is not desired, unset
 *          the config option and call the function manually when the
 *          application starts.
 *
 * @param device Network device to use. The function will figure out what
 *        network interface to use based on the device. If the device is NULL,
 *        then default network interface is used by the function.
 * @param app_info String describing this application.
 *
 * @return 0 if ok, <0 if error.
 */
int net_config_init_app(const struct device *device, const char *app_info);

/**
 * @}
 */

#ifdef __cplusplus
}
#endif

#endif /* ZEPHYR_INCLUDE_NET_NET_CONFIG_H_ */