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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"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_arp_static_entries_delete PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function deletes all ARP static entries currently in */
/* the ARP cache. */
/* */
/* INPUT */
/* */
/* ip_ptr IP instance pointer */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* tx_mutex_get Obtain protection mutex */
/* tx_mutex_put Release protection mutex */
/* _nx_arp_static_entry_delete Delete a static entry */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _nx_arp_static_entries_delete(NX_IP *ip_ptr)
{
#ifndef NX_DISABLE_IPV4
#ifdef TX_ENABLE_EVENT_TRACE
TX_TRACE_BUFFER_ENTRY *trace_event;
ULONG trace_timestamp;
ULONG deleted_count = 0;
#endif
/* If trace is enabled, insert this event into the trace buffer. */
NX_TRACE_IN_LINE_INSERT(NX_TRACE_ARP_STATIC_ENTRIES_DELETE, ip_ptr, 0, 0, 0, NX_TRACE_ARP_EVENTS, &trace_event, &trace_timestamp);
/* Obtain protection on this IP instance for access into the ARP static
list. */
tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER);
/* Traverse the static list until it is exhausted. */
while (ip_ptr -> nx_ip_arp_static_list)
{
/* Otherwise, delete the static entry delete routine. Note that the delete routine
will modify the list head pointer used above. */
_nx_arp_static_entry_delete_internal(ip_ptr, ip_ptr -> nx_ip_arp_static_list);
#ifdef TX_ENABLE_EVENT_TRACE
/* Increment the deleted count. */
deleted_count++;
#endif
}
/* Update the trace event with the status. */
NX_TRACE_EVENT_UPDATE(trace_event, trace_timestamp, NX_TRACE_ARP_STATIC_ENTRIES_DELETE, 0, deleted_count, 0, 0);
/* Release the mutex. */
tx_mutex_put(&(ip_ptr -> nx_ip_protection));
/* Return status to the caller. */
return(NX_SUCCESS);
#else /* NX_DISABLE_IPV4 */
NX_PARAMETER_NOT_USED(ip_ptr);
return(NX_NOT_SUPPORTED);
#endif /* !NX_DISABLE_IPV4 */
}
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