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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 Secure Component */
/** */
/** Datagram Transport Layer Security (DTLS) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SECURE_SOURCE_CODE
#include "nx_secure_dtls.h"
#include "nx_ipv6.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_secure_dtls_session_client_info_get PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function returns relevant information about a remote client */
/* that is connected to a DTLS server session instance. */
/* */
/* INPUT */
/* */
/* dtls_session DTLS session control block */
/* client_ip_address Return remote host IP address */
/* client_port Return remote host UDP port */
/* local_port Return local UDP port */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* COPY_IPV6_ADDRESS Copy IPv6 address to return */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _nx_secure_dtls_session_client_info_get(NX_SECURE_DTLS_SESSION *dtls_session,
NXD_ADDRESS *client_ip_address, UINT *client_port, UINT *local_port)
{
#ifdef NX_SECURE_ENABLE_DTLS
NX_UDP_SOCKET *socket_ptr;
NXD_ADDRESS *ip_address;
/* Get our UDP socket. */
socket_ptr = dtls_session->nx_secure_dtls_udp_socket;
/* Make sure we have received a packet on the UDP socket - otherwise
we don't have a DTLS connection and can't get info from a non-existent Client! */
if(socket_ptr->nx_udp_socket_receive_head == NX_NULL)
{
return(NX_NOT_CONNECTED);
}
/* Get our local IP address for the deep copy below. */
ip_address = &(dtls_session->nx_secure_dtls_remote_ip_address);
/* Copy address version. */
client_ip_address -> nxd_ip_version = ip_address -> nxd_ip_version;
#ifndef NX_DISABLE_IPV4
if (ip_address -> nxd_ip_version == NX_IP_VERSION_V4)
{
/* Pickup the source IP address. */
client_ip_address -> nxd_ip_address.v4 = ip_address -> nxd_ip_address.v4;
}
#endif /* NX_DISABLE_IPV4 */
#ifdef FEATURE_NX_IPV6
if (ip_address -> nxd_ip_version == NX_IP_VERSION_V6)
{
COPY_IPV6_ADDRESS(ip_address -> nxd_ip_address.v6,
client_ip_address -> nxd_ip_address.v6);
}
#endif /* FEATURE_NX_IPV6 */
/* Copy the remote and local ports to our return parameters. */
*client_port = dtls_session->nx_secure_dtls_remote_port;
*local_port = dtls_session->nx_secure_dtls_local_port;
return(NX_SUCCESS);
#else
NX_PARAMETER_NOT_USED(dtls_session);
NX_PARAMETER_NOT_USED(client_ip_address);
NX_PARAMETER_NOT_USED(client_port);
NX_PARAMETER_NOT_USED(local_port);
return(NX_NOT_SUPPORTED);
#endif /* NX_SECURE_ENABLE_DTLS */
}