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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 Control Message Protocol for IPv6 (ICMPv6) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_icmp.h"
#include "nx_icmpv6.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nxd_icmp_enable PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function enables the ICMPv4 and ICMPv6 services for the */
/* specified IP instance. */
/* */
/* INPUT */
/* */
/* ip_ptr IP instance pointer */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* memset Set the memory */
/* tx_mutex_get Obtain protection mutex */
/* tx_mutex_put Release protection mutex */
/* */
/* 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 _nxd_icmp_enable(NX_IP *ip_ptr)
{
/* If trace is enabled, insert this event into the trace buffer. */
NX_TRACE_IN_LINE_INSERT(NXD_TRACE_ICMP_ENABLE, ip_ptr, 0, 0, 0, NX_TRACE_ICMP_EVENTS, 0, 0);
tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER);
/* Setup the ICMP packet receiving routine, thereby enabling ICMP traffic. */
/* ICMPv4 and ICMPv6 share the same packet_receive routine. */
ip_ptr -> nx_ip_icmp_packet_receive = _nx_icmp_packet_receive;
#ifndef NX_DISABLE_IPV4
/* Setup the ICMP packet queue processing routine. */
ip_ptr -> nx_ip_icmp_queue_process = _nx_icmp_queue_process;
/* Start the ICMPv4 packet process routine */
ip_ptr -> nx_ip_icmpv4_packet_process = _nx_icmpv4_packet_process;
#endif
#ifdef FEATURE_NX_IPV6
/* Setup the ICMPv6 packet process routine */
ip_ptr -> nx_ip_icmpv6_packet_process = _nx_icmpv6_packet_process;
/* Setup the ND Cache periodic update routine */
ip_ptr -> nx_nd_cache_fast_periodic_update = _nx_nd_cache_fast_periodic_update;
ip_ptr -> nx_nd_cache_slow_periodic_update = _nx_nd_cache_slow_periodic_update;
/* Initialize tables used in ICMPv6 protocols. */
/* Clear the ND Cache table. */
memset(&ip_ptr -> nx_ipv6_nd_cache[0], 0, sizeof(ND_CACHE_ENTRY) * NX_IPV6_NEIGHBOR_CACHE_SIZE);
/* Clear the destination table. */
memset(&ip_ptr -> nx_ipv6_destination_table[0], 0, sizeof(NX_IPV6_DESTINATION_ENTRY) * NX_IPV6_DESTINATION_TABLE_SIZE);
/* Set the initial size to zero. */
ip_ptr -> nx_ipv6_destination_table_size = 0;
#ifdef NX_ENABLE_IPV6_PATH_MTU_DISCOVERY
/* Set up the MTU path discovery periodic update. */
ip_ptr -> nx_destination_table_periodic_update = _nx_icmpv6_destination_table_periodic_update;
#endif /* NX_ENABLE_IPV6_PATH_MTU_DISCOVERY */
#endif /* FEATURE_NX_IPV6 */
tx_mutex_put(&(ip_ptr -> nx_ip_protection));
/* Return a successful status! */
return(NX_SUCCESS);
}