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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 */
/** */
/** Address Resolution Protocol (ARP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_arp.h"
#ifndef NX_DISABLE_IPV4
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_arp_queue_process PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function processes the received ARP messages on the ARP */
/* queue placed there by nx_arp_deferred_receive. */
/* */
/* INPUT */
/* */
/* ip_ptr Pointer to IP instance */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _nx_arp_packet_receive Process received ARP packet */
/* */
/* CALLED BY */
/* */
/* _nx_ip_thread_entry IP helper thread */
/* */
/**************************************************************************/
VOID _nx_arp_queue_process(NX_IP *ip_ptr)
{
TX_INTERRUPT_SAVE_AREA
NX_PACKET *packet_ptr;
/* Loop to process all ARP deferred packet requests. */
while (ip_ptr -> nx_ip_arp_deferred_received_packet_head)
{
/* Remove the first packet and process it! */
/* Disable interrupts. */
TX_DISABLE
/* Pickup the first packet. */
packet_ptr = ip_ptr -> nx_ip_arp_deferred_received_packet_head;
/* Move the head pointer to the next packet. */
ip_ptr -> nx_ip_arp_deferred_received_packet_head = packet_ptr -> nx_packet_queue_next;
/* Check for end of ARP deferred processing queue. */
if (ip_ptr -> nx_ip_arp_deferred_received_packet_head == NX_NULL)
{
/* Yes, the ARP deferred queue is empty. Set the tail pointer to NULL. */
ip_ptr -> nx_ip_arp_deferred_received_packet_tail = NX_NULL;
}
/* Restore interrupts. */
TX_RESTORE
/* Call the actual ARP packet receive function. */
_nx_arp_packet_receive(ip_ptr, packet_ptr);
}
}
#endif /* !NX_DISABLE_IPV4 */
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