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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2025-present Eclipse ThreadX Contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Secure Component */
/** */
/** Datagram Transport Layer Security (DTLS) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SECURE_SOURCE_CODE
#include "nx_secure_dtls.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_secure_dtls_server_local_certificate_add PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function adds a local identity certificate to a DTLS server */
/* instance. The certificate added is shared by all DTLS sessions */
/* allocated to the DTLS server and is used to identify the server to */
/* remote clients during the DTLS handshake. Multiple server */
/* certificates may be added as long as they have unique certificate */
/* identifiers (the "cert_id" parameter). */
/* */
/* INPUT */
/* */
/* server_ptr DTLS server control block */
/* certificate Pointer to identity cert */
/* cert_id Numeric ID for cert */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _nx_secure_tls_server_certificate_add Add certificate to TLS */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _nx_secure_dtls_server_local_certificate_add(NX_SECURE_DTLS_SERVER *server_ptr,
NX_SECURE_X509_CERT *certificate, UINT cert_id)
{
#if defined(NX_SECURE_ENABLE_DTLS) && !defined(NX_SECURE_DISABLE_X509)
UINT status;
UINT i;
NX_SECURE_DTLS_SESSION *current_session;
NX_SECURE_TLS_SESSION *tls_session;
NX_SECURE_X509_CERT *list_head = NX_NULL;
UINT num_sessions;
/* Figure out number of sessions. */
num_sessions = server_ptr -> nx_dtls_server_sessions_count;
/* Add certificate to the first session. */
if (num_sessions > 0)
{
/* Get the first session. */
current_session = &(server_ptr -> nx_dtls_server_sessions[0]);
/* Get the internal TLS session instance. */
tls_session = &(current_session -> nx_secure_dtls_tls_session);
/* Add the server certificate with the provided ID. */
status = _nx_secure_tls_server_certificate_add(tls_session, certificate, cert_id);
if(status != NX_SUCCESS)
{
return(status);
}
/* Store the certificates list head for other sessions. */
list_head = tls_session -> nx_secure_tls_credentials.nx_secure_tls_certificate_store.nx_secure_x509_local_certificates;
}
/* Add certificate to the remaining sessions. */
for(i = 1; i < num_sessions; ++i)
{
/* Get the current session. */
current_session = &(server_ptr->nx_dtls_server_sessions[i]);
/* Get the internal TLS session instance. */
tls_session = &(current_session -> nx_secure_dtls_tls_session);
/* Set the local certificates list to the same as the first session. */
tls_session -> nx_secure_tls_credentials.nx_secure_tls_certificate_store.nx_secure_x509_local_certificates = list_head;
}
return(NX_SUCCESS);
#else
NX_PARAMETER_NOT_USED(server_ptr);
NX_PARAMETER_NOT_USED(certificate);
NX_PARAMETER_NOT_USED(cert_id);
return(NX_NOT_SUPPORTED);
#endif /* NX_SECURE_ENABLE_DTLS && !NX_SECURE_DISABLE_X509 */
}
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