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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Component */
/** */
/** User Datagram Protocol (UDP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_udp.h"
/* Bring in externs for caller checking code. */
NX_CALLER_CHECKING_EXTERNS
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nxde_udp_pacekt_info_extract PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function performs error checking for UDP packet info extract */
/* service. */
/* */
/* INPUT */
/* */
/* packet_ptr Pointer to UDP packet pointer */
/* ip_address Pointer to destination for IP */
/* address, or NULL */
/* protocol Pointer to destination for */
/* protocol information, or */
/* NULL */
/* port Pointer to destination for */
/* source port. This service */
/* always returns 17 (UDP), or */
/* NULL */
/* interface_index Index to the interface */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _nxd_udp_packet_info_extract The actual service routine. */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Yuxin Zhou Initial Version 6.0 */
/* 09-30-2020 Yuxin Zhou Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _nxde_udp_packet_info_extract(NX_PACKET *packet_ptr, NXD_ADDRESS *ip_address,
UINT *protocol, UINT *port, UINT *interface_index)
{
UINT status;
if (packet_ptr == NX_NULL)
{
return(NX_PTR_ERROR);
}
/* Check for appropriate caller. */
NX_THREADS_ONLY_CALLER_CHECKING
status = _nxd_udp_packet_info_extract(packet_ptr, ip_address, protocol, port, interface_index);
return(status);
}