/*
 * Copyright (c) 2016, 2017 Jonas 'Sortie' Termansen.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * net/arp.h
 * Address resolution protocol.
 */

#ifndef NET_ARP_H
#define NET_ARP_H

#include <netinet/if_ether.h>
#include <netinet/in.h>

#include <sortix/kernel/packet.h>

struct if_config;

namespace Sortix {
class NetworkInterface;
} // namespace Sortix

namespace Sortix {
namespace ARP {

extern kthread_mutex_t arp_lock;

bool RouteIPEthernet(NetworkInterface* netif,
                     Ref<Packet> pkt,
                     const struct in_addr* dst);
void Handle(Ref<Packet> pkt,
            const struct ether_addr* src,
            const struct ether_addr* dst,
            bool dst_broadcast);
void OnConfiguration(NetworkInterface* netif,
                     const struct if_config* old_cfg,
                     const struct if_config* new_cfg);

} // namespace ARP
} // namespace Sortix

#endif