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| | /* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright (c) 2021 Red Hat GmbH
* Author: Stefano Brivio <sbrivio@redhat.com>
*/
#ifndef ARP_H
#define ARP_H
/**
* struct arpmsg - 802.2 ARP IPv4 payload
* @sha: Sender hardware address
* @sip: Sender IP address
* @tha: Target hardware address
* @tip: Target IP address
*/
struct arpmsg {
unsigned char sha[ETH_ALEN];
unsigned char sip[4];
unsigned char tha[ETH_ALEN];
unsigned char tip[4];
} __attribute__((__packed__));
int arp(const struct ctx *c, struct iov_tail *data);
void arp_send_init_req(const struct ctx *c);
void arp_send_gratuitous(const struct ctx *c, struct in_addr *ip,
const unsigned char *mac);
#endif /* ARP_H */
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