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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 (ICMP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_ip.h"
#include "nx_icmp.h"
/* Bring in externs for caller checking code. */
NX_CALLER_CHECKING_EXTERNS
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nxde_icmp_source_ping PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks for errors in the dual stack (IPv4 or IPv6 */
/* ICMP ping service. */
/* */
/* INPUT */
/* */
/* ip_ptr Pointer to IP instance */
/* ip_address IP address to ping */
/* address_index Index of IPv4 or IPv6 address */
/* to use as the source address*/
/* data_ptr User Data pointer */
/* data_size Size of User Data */
/* response_ptr Pointer to Response Packet */
/* wait_option Suspension option */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _nxd_icmp_source_ping Actual ICMP ping function */
/* */
/* 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_icmp_source_ping(NX_IP *ip_ptr, NXD_ADDRESS *ip_address, UINT address_index,
CHAR *data_ptr, ULONG data_size,
NX_PACKET **response_ptr, ULONG wait_option)
{
UINT status;
/* Check for invalid input pointers. */
if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID) || (response_ptr == NX_NULL))
{
return(NX_PTR_ERROR);
}
/* Check for invalid IP address. */
if (ip_address == NX_NULL)
{
return(NX_IP_ADDRESS_ERROR);
}
/* Check for invalid version. */
if ((ip_address -> nxd_ip_version != NX_IP_VERSION_V4) &&
(ip_address -> nxd_ip_version != NX_IP_VERSION_V6))
{
return(NX_IP_ADDRESS_ERROR);
}
#ifndef NX_DISABLE_IPV4
/* Check to see if ICMP is enabled. */
if (ip_address -> nxd_ip_version == NX_IP_VERSION_V4)
{
if (address_index >= NX_MAX_IP_INTERFACES)
{
return(NX_INVALID_INTERFACE);
}
/* Cast the function pointer into a ULONG. Since this is exactly what we wish to do, disable the lint warning with the following comment: */
/*lint -e{923} suppress cast of pointer to ULONG. */
if ((ALIGN_TYPE)ip_ptr -> nx_ip_icmpv4_packet_process == NX_NULL)
{
return(NX_NOT_ENABLED);
}
}
#endif /* NX_DISABLE_IPV4 */
#ifdef FEATURE_NX_IPV6
if (ip_address -> nxd_ip_version == NX_IP_VERSION_V6)
{
if ((address_index >= (NX_MAX_IPV6_ADDRESSES + NX_LOOPBACK_IPV6_ENABLED)) ||
(ip_ptr -> nx_ipv6_address[address_index].nxd_ipv6_address_attached == NX_NULL) ||
(ip_ptr -> nx_ipv6_address[address_index].nxd_ipv6_address_valid == NX_FALSE))
{
return(NX_INVALID_INTERFACE);
}
/* Cast the function pointer into a ULONG. Since this is exactly what we wish to do, disable the lint warning with the following comment: */
/*lint -e{923} suppress cast of pointer to ULONG. */
if (((ALIGN_TYPE)ip_ptr -> nx_ip_icmpv6_packet_process == NX_NULL) ||
((ALIGN_TYPE)ip_ptr -> nx_ipv6_packet_receive == NX_NULL))
{
return(NX_NOT_ENABLED);
}
}
#endif /* FEATURE_NX_IPV6 */
/* Check for appropriate caller. */
NX_THREADS_ONLY_CALLER_CHECKING
/* Call actual ICMP ping function. */
status = _nxd_icmp_source_ping(ip_ptr, ip_address, address_index, data_ptr, data_size,
response_ptr, wait_option);
/* Return completion status. */
return(status);
}