53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
/** @file
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@brief ARP handler
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This is not to be included by the application.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __ARP_H
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#define __ARP_H
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#if defined(CONFIG_NET_ARP)
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#include <net/ethernet.h>
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#define NET_ARP_HDR(pkt) ((struct net_arp_hdr *)net_pkt_ip_data(pkt))
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struct net_arp_hdr {
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u16_t hwtype; /* HTYPE */
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u16_t protocol; /* PTYPE */
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u8_t hwlen; /* HLEN */
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u8_t protolen; /* PLEN */
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u16_t opcode;
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struct net_eth_addr src_hwaddr; /* SHA */
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struct in_addr src_ipaddr; /* SPA */
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struct net_eth_addr dst_hwaddr; /* THA */
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struct in_addr dst_ipaddr; /* TPA */
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} __packed;
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#define NET_ARP_HTYPE_ETH 1
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#define NET_ARP_REQUEST 1
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#define NET_ARP_REPLY 2
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struct net_pkt *net_arp_prepare(struct net_pkt *pkt);
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enum net_verdict net_arp_input(struct net_pkt *pkt);
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void net_arp_clear_cache(void);
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void net_arp_init(void);
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#else /* CONFIG_NET_ARP */
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#define net_arp_clear_cache(...)
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#define net_arp_init(...)
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#endif /* CONFIG_NET_ARP */
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#endif /* __ARP_H */
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