cnet_arp.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright (c) 2016-2022 Intel Corporation
 */
 
#ifndef __CNET_ARP_H
#define __CNET_ARP_H
 
#include <cnet/cnet.h>
#include <net/cne_arp.h>
#include <net/cne_ip.h>
#include <net/ethernet.h>        // for ether_addr
#include <stdint.h>              // for uint8_t, uint16_t
 
#include "cne_inet.h"        // for _in_addr
#include "pktmbuf.h"         // for pktmbuf_t
 
#ifdef __cplusplus
extern "C" {
#endif
 
enum {
    ARP_NEXT_INDEX_SHIFT      = 24,
    ARP_FIB_MAX_ENTRIES       = (1UL << ARP_NEXT_INDEX_SHIFT),
    ARP_FIB_DEFAULT_ENTRIES   = 1024,
    ARP_FIB_DEFAULT_NUM_TBL8S = (1 << 8),
};
 
/* arp_entry.flags */
enum {
    ARP_STATIC_FLAG     = 0x01, 
    ARP_SEND_GRATUITOUS = 0x02  
};
 
/* ARP table format */
struct arp_entry {
    uint16_t flags;       
    uint16_t netif_idx;   
    struct in_addr pa;    
    struct ether_addr ha; 
};
 
CNDP_API struct arp_entry *cnet_arp_alloc(void);
 
CNDP_API void cnet_arp_free(struct arp_entry *entry);
 
CNDP_API int cnet_arp_create(struct cnet *_cnet, uint32_t num_entries, uint32_t num_tbl8s);
 
CNDP_API int cnet_arp_destroy(struct cnet *cnet);
 
CNDP_API struct arp_entry *cnet_arp_add(int netif_idx, struct in_addr *addr, struct ether_addr *mac,
                                        int perm);
 
CNDP_API int cnet_arp_delete(struct in_addr *addr);
 
CNDP_API int cnet_arp_show(void);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __CNET_ARP_H */