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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 */
/** */
/** Transport Layer Security (TLS) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SECURE_SOURCE_CODE
/* Include necessary system files. */
#include "nx_secure_tls.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_secure_tls_remote_certificate_free_all PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function moves all remote certificate buffers back into the */
/* free certificate store, allowing them to be used for a new TLS */
/* session. */
/* */
/* INPUT */
/* */
/* tls_session Pointer to TLS Session */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _nx_secure_tls_remote_certificate_free */
/* Free remote certificate */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* _nx_secure_tls_client_handshake TLS client state machine */
/* _nx_secure_tls_process_clienthello Process ClientHello */
/* _nx_secure_tls_session_renegotiate Renegotiate TLS session */
/* _nx_secure_tls_session_reset Clear TLS control block */
/* */
/* 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_tls_remote_certificate_free_all(NX_SECURE_TLS_SESSION *tls_session)
{
UINT status = NX_SUCCESS;
NX_SECURE_X509_CERTIFICATE_STORE *store;
NX_SECURE_X509_CERT *certificate;
/* Reset the packet buffer if we allocated certificates from it. */
tls_session->nx_secure_tls_packet_buffer_size = tls_session->nx_secure_tls_packet_buffer_original_size;
/* Get the remote certificate store from our TLS session. */
store = &tls_session -> nx_secure_tls_credentials.nx_secure_tls_certificate_store;
certificate = store -> nx_secure_x509_remote_certificates;
/* Loop through all remote certificates and remove each. */
while (certificate != NX_NULL)
{
status = _nx_secure_tls_remote_certificate_free(tls_session, &certificate -> nx_secure_x509_distinguished_name);
if (status != NX_SUCCESS)
{
return(status);
}
/* Get the new certificate list head after removal. */
certificate = store -> nx_secure_x509_remote_certificates;
}
/* Return completion status. */
return(status);
}
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