/*
 * Copyright (c) 2019 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#ifndef __CONN_MGR_PRV_H__
#define __CONN_MGR_PRV_H__

#include <zephyr/net/conn_mgr_connectivity.h>
#include <zephyr/sys/iterable_sections.h>

#if defined(CONFIG_NET_IPV6) && defined(CONFIG_NET_IPV4)
#define CONN_MGR_IFACE_MAX		MAX(CONFIG_NET_IF_MAX_IPV6_COUNT, \
					    CONFIG_NET_IF_MAX_IPV4_COUNT)
#elif defined(CONFIG_NET_IPV6)
#define CONN_MGR_IFACE_MAX		CONFIG_NET_IF_MAX_IPV6_COUNT
#else
#define CONN_MGR_IFACE_MAX		CONFIG_NET_IF_MAX_IPV4_COUNT
#endif

/* External state flags */
#define CONN_MGR_IF_UP			BIT(0)
#define CONN_MGR_IF_IPV6_SET		BIT(1)
#define CONN_MGR_IF_IPV4_SET		BIT(2)

/* Configuration flags */
#define CONN_MGR_IF_IGNORED		BIT(7)

/* Internal state flags*/
#define CONN_MGR_IF_READY		BIT(14)

/* Event flags */
#define CONN_MGR_IF_CHANGED		BIT(15)

/* NET_MGMT event masks */
#define CONN_MGR_IFACE_EVENTS_MASK	(NET_EVENT_IF_DOWN		| \
					 NET_EVENT_IF_UP)

#define CONN_MGR_IPV6_EVENTS_MASK	(NET_EVENT_IPV6_ADDR_ADD	| \
					 NET_EVENT_IPV6_ADDR_DEL	| \
					 NET_EVENT_IPV6_DAD_SUCCEED	| \
					 NET_EVENT_IPV6_DAD_FAILED)

#define CONN_MGR_IPV4_EVENTS_MASK	(NET_EVENT_IPV4_ADDR_ADD	| \
					 NET_EVENT_IPV4_ADDR_DEL)

extern struct k_sem conn_mgr_event_signal;
extern struct k_mutex conn_mgr_lock;

void conn_mgr_init_events_handler(void);

/**
 * @brief Retrieves the conn_mgr binding struct for a provided iface if it exists.
 *
 * Bindings for connectivity implementations with missing API structs are ignored.
 *
 * @param iface - bound network interface to obtain the binding struct for.
 * @return struct conn_mgr_conn_binding* Pointer to the retrieved binding struct if it exists,
 *	   NULL otherwise.
 */
static inline struct conn_mgr_conn_binding *conn_mgr_if_get_binding(struct net_if *iface)
{
	STRUCT_SECTION_FOREACH(conn_mgr_conn_binding, binding) {
		if (iface == binding->iface) {
			if (binding->impl->api) {
				return binding;
			}
			return NULL;
		}
	}
	return NULL;
}

#endif /* __CONN_MGR_PRV_H__ */