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common/src/nxde_ipv6_default_router_number_of_entries_get.c
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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 */
/** */
/** Internet Protocol version 6 Default Router Table (IPv6 router) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_ipv6.h"
#ifdef FEATURE_NX_IPV6
#include "nx_ip.h"
#include "nx_nd_cache.h"
/* Bring in externs for caller checking code. */
NX_CALLER_CHECKING_EXTERNS
#endif /* FEATURE_NX_IPV6 */
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nxde_ipv6_default_router_number_of_entries_get PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function performs error checking for the default router entries*/
/* get service. */
/* */
/* INPUT */
/* */
/* ip_ptr IP instance pointer */
/* if_index Interface Index */
/* num_entries Destination for number of */
/* IPv6 routers on a specified */
/* network interface */
/* */
/* OUTPUT */
/* */
/* Status Completion status */
/* */
/* CALLS */
/* */
/* _nxd_ipv6_default_router_entries_get */
/* */
/* CALLED BY */
/* */
/* Application code */
/* */
/* NOTE */
/* */
/* */
/* This function cannot be called from ISR. */
/* */
/* 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_ipv6_default_router_number_of_entries_get(NX_IP *ip_ptr, UINT if_index, UINT *num_entries)
{
#ifdef FEATURE_NX_IPV6
UINT status;
/* Check for invalid input pointers. */
if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID) || (num_entries == NX_NULL))
{
return(NX_PTR_ERROR);
}
/* Validate the interface. */
if (if_index >= NX_MAX_PHYSICAL_INTERFACES)
{
return(NX_INVALID_INTERFACE);
}
/* Check for appropriate caller. */
NX_INIT_AND_THREADS_CALLER_CHECKING
/* Call actual IPv6 default router number get function. */
status = _nxd_ipv6_default_router_number_of_entries_get(ip_ptr, if_index, num_entries);
/* Return completion status. */
return(status);
#else /* !FEATURE_NX_IPV6 */
NX_PARAMETER_NOT_USED(ip_ptr);
NX_PARAMETER_NOT_USED(if_index);
NX_PARAMETER_NOT_USED(num_entries);
return(NX_NOT_SUPPORTED);
#endif /* FEATURE_NX_IPV6 */
}