/***************************************************************************
 * 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"

/* Bring in externs for caller checking code.  */
NX_CALLER_CHECKING_EXTERNS


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _nxe_ip_interface_address_get                       PORTABLE C      */
/*                                                           6.4.3        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Yuxin Zhou, Microsoft Corporation                                   */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function checks for errors in the IP address get function      */
/*    call.                                                               */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    ip_ptr                                IP control block pointer      */
/*    interface_index                       IP Interface Index            */
/*    ip_address                            Pointer to IP address         */
/*                                            destination                 */
/*    network_mask                          Pointer to network mask       */
/*                                            destination                 */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _nx_ip_interface_address_get          Actual IP address get function*/
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/**************************************************************************/
UINT  _nxe_ip_interface_address_get(NX_IP *ip_ptr, UINT interface_index, ULONG *ip_address, ULONG *network_mask)
{

#ifndef NX_DISABLE_IPV4
UINT status;


    /* Check for invalid input pointers.  */
    if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID) || (ip_address == NX_NULL) || (network_mask == NX_NULL))
    {
        return(NX_PTR_ERROR);
    }

    /* Check for valid interface ID */
    if (interface_index >= NX_MAX_PHYSICAL_INTERFACES)
    {
        return(NX_INVALID_INTERFACE);
    }

    /* Check for interface being valid. */
    if (!ip_ptr -> nx_ip_interface[interface_index].nx_interface_valid)
    {
        return(NX_INVALID_INTERFACE);
    }

    /* Check for appropriate caller.  */
    NX_INIT_AND_THREADS_CALLER_CHECKING

    /* Call actual IP address get function.  */
    status =  _nx_ip_interface_address_get(ip_ptr, interface_index, ip_address, network_mask);

    /* Return completion status.  */
    return(status);
#else /* NX_DISABLE_IPV4  */
    NX_PARAMETER_NOT_USED(ip_ptr);
    NX_PARAMETER_NOT_USED(interface_index);
    NX_PARAMETER_NOT_USED(ip_address);
    NX_PARAMETER_NOT_USED(network_mask);

    return(NX_NOT_SUPPORTED);
#endif /* !NX_DISABLE_IPV4  */
}