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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 */
/** */
/** Internet Protocol (IP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_ip.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_ip_gateway_address_clear PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function clears the IPv4 gateway address. */
/* */
/* INPUT */
/* */
/* ip_ptr IP control block pointer */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* tx_mutex_get Obtain protection mutex */
/* tx_mutex_put Release protection mutex */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _nx_ip_gateway_address_clear(NX_IP *ip_ptr)
{
#ifndef NX_DISABLE_IPV4
TX_INTERRUPT_SAVE_AREA
/* If trace is enabled, insert this event into the trace buffer. */
NX_TRACE_IN_LINE_INSERT(NX_TRACE_IP_GATEWAY_ADDRESS_SET, ip_ptr, 0, 0, 0, NX_TRACE_IP_EVENTS, 0, 0);
/* Obtain the IP internal mutex so the Gateway IP address can be cleared. */
tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER);
/* Disable interrupts. */
TX_DISABLE
/* Clear the Gateway IP address. */
ip_ptr -> nx_ip_gateway_address = 0;
ip_ptr -> nx_ip_gateway_interface = NX_NULL;
/* Restore interrupts. */
TX_RESTORE
/* Release the protection mutex. */
tx_mutex_put(&(ip_ptr -> nx_ip_protection));
/* Return completion status. */
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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