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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2025-present Eclipse ThreadX Contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Component */
/** */
/** Neighbor Discovery Cache */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_nd_cache.h"
#ifdef FEATURE_NX_IPV6
#include "nx_ipv6.h"
#endif /* FEATURE_NX_IPV6 */
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nxd_nd_cache_entry_set PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function creates an entry with the specified IPv6 address and */
/* hardware MAC address mapping and adds it to the Neighbor Discovery */
/* (ND) cache. */
/* */
/* INPUT */
/* */
/* ip_ptr Pointer to the IP instance */
/* dest_ip Pointer to the IP address */
/* to add (map) */
/* interface_index Index to the network */
/* interface */
/* mac Pointer to the MAC address to */
/* be added (map) */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _nx_nd_cache_add Actual function to add an */
/* entry to the cache. */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _nxd_nd_cache_entry_set(NX_IP *ip_ptr, ULONG *dest_ip, UINT interface_index, CHAR *mac)
{
#ifdef FEATURE_NX_IPV6
ND_CACHE_ENTRY *nd_cache_entry;
UINT status;
/* If trace is enabled, insert this event into the trace buffer. */
NX_TRACE_IN_LINE_INSERT(NXD_TRACE_ND_CACHE_ENTRY_SET, dest_ip[3], ((mac[0] << 16) | mac[1]), ((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5]),
0, NX_TRACE_ARP_EVENTS, 0, 0);
/* Call the actual cache entry add service. */
status = _nx_nd_cache_add(ip_ptr, dest_ip, ip_ptr -> nx_ipv6_address[interface_index].nxd_ipv6_address_attached, mac, 1, ND_CACHE_STATE_REACHABLE, &(ip_ptr -> nx_ipv6_address[interface_index]), &nd_cache_entry);
return(status);
#else /* !FEATURE_NX_IPV6 */
NX_PARAMETER_NOT_USED(ip_ptr);
NX_PARAMETER_NOT_USED(dest_ip);
NX_PARAMETER_NOT_USED(interface_index);
NX_PARAMETER_NOT_USED(mac);
return(NX_NOT_SUPPORTED);
#endif /* FEATURE_NX_IPV6 */
}
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