83 lines
1.5 KiB
C
83 lines
1.5 KiB
C
/** @file
|
|
@brief ARP handler
|
|
|
|
This is not to be included by the application.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2016 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef __ARP_H
|
|
#define __ARP_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if defined(CONFIG_NET_ARP)
|
|
|
|
#include <net/ethernet.h>
|
|
|
|
/**
|
|
* @brief Address resolution (ARP) library
|
|
* @defgroup arp ARP Library
|
|
* @{
|
|
*/
|
|
|
|
#define NET_ARP_HDR(pkt) ((struct net_arp_hdr *)net_pkt_ip_data(pkt))
|
|
|
|
struct net_arp_hdr {
|
|
u16_t hwtype; /* HTYPE */
|
|
u16_t protocol; /* PTYPE */
|
|
u8_t hwlen; /* HLEN */
|
|
u8_t protolen; /* PLEN */
|
|
u16_t opcode;
|
|
struct net_eth_addr src_hwaddr; /* SHA */
|
|
struct in_addr src_ipaddr; /* SPA */
|
|
struct net_eth_addr dst_hwaddr; /* THA */
|
|
struct in_addr dst_ipaddr; /* TPA */
|
|
} __packed;
|
|
|
|
#define NET_ARP_HTYPE_ETH 1
|
|
|
|
#define NET_ARP_REQUEST 1
|
|
#define NET_ARP_REPLY 2
|
|
|
|
struct net_pkt *net_arp_prepare(struct net_pkt *pkt);
|
|
enum net_verdict net_arp_input(struct net_pkt *pkt);
|
|
|
|
struct arp_entry {
|
|
u32_t time; /* FIXME - implement timeout functionality */
|
|
struct net_if *iface;
|
|
struct net_pkt *pending;
|
|
struct in_addr ip;
|
|
struct net_eth_addr eth;
|
|
};
|
|
|
|
typedef void (*net_arp_cb_t)(struct arp_entry *entry,
|
|
void *user_data);
|
|
int net_arp_foreach(net_arp_cb_t cb, void *user_data);
|
|
|
|
void net_arp_clear_cache(void);
|
|
void net_arp_init(void);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#else /* CONFIG_NET_ARP */
|
|
|
|
#define net_arp_clear_cache(...)
|
|
#define net_arp_init(...)
|
|
|
|
#endif /* CONFIG_NET_ARP */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ARP_H */
|