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nx_secure/src/nx_secure_dtls_server_local_certificate_remove.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 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_remove PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function removes a local server identity certificate from a */
/* DTLS server instance, either using the Common Name or the */
/* certificate id ("cert_id" parameter) assigned when the certificate */
/* was added. */
/* */
/* INPUT */
/* */
/* server_ptr DTLS server control block */
/* common_name Certificate Common Name */
/* common_name_length Length of Common Name */
/* cert_id Numeric ID for certificate */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _nx_secure_tls_server_certificate_remove */
/* Remove certificate using ID */
/* _nx_secure_tls_local_certificate_remove */
/* Remove certificate using CN */
/* */
/* 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), and */
/* fixed compiler warnings, */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _nx_secure_dtls_server_local_certificate_remove(NX_SECURE_DTLS_SERVER *server_ptr,
UCHAR *common_name, UINT common_name_length, UINT cert_id)
{
#ifdef NX_SECURE_ENABLE_DTLS
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;
/* Remove certificate from 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);
if(cert_id > 0)
{
/* Remove the server certificate with the provided ID. */
status = _nx_secure_tls_server_certificate_remove(tls_session, cert_id);
}
else
{
/* Remove the server certificate with the provided CN. */
status = _nx_secure_tls_local_certificate_remove(tls_session, common_name, common_name_length);
}
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;
}
/* Remove certificate from 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(common_name);
NX_PARAMETER_NOT_USED(common_name_length);
NX_PARAMETER_NOT_USED(cert_id);
return(NX_NOT_SUPPORTED);
#endif /* NX_SECURE_ENABLE_DTLS */
}