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path: root/nx_secure/src/nxe_secure_tls_session_delete.c
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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                                                 */
/**                                                                       */
/**    Transport Layer Security (TLS)                                     */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define NX_SECURE_SOURCE_CODE


/* Include necessary system files.  */

#include "nx_secure_tls.h"

/* Bring in externs for caller checking code.  */

NX_SECURE_CALLER_CHECKING_EXTERNS

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _nxe_secure_tls_session_delete                      PORTABLE C      */
/*                                                           6.4.3        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Timothy Stapko, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function checks for errors in the TLS session delete call.     */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    tls_session                           Pointer to TLS Session        */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _nx_secure_tls_session_delete         Actual TLS session delete call*/
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/**************************************************************************/
UINT  _nxe_secure_tls_session_delete(NX_SECURE_TLS_SESSION *tls_session)
{
UINT status;
NX_SECURE_TLS_SESSION *session_ptr;

    if (tls_session == NX_NULL)
    {
        return(NX_PTR_ERROR);
    }

    session_ptr = _nx_secure_tls_created_ptr;
    for (;;)
    {
        if (session_ptr == NX_NULL)
        {

            /* No session created. */
            return(NX_PTR_ERROR);
        }

        if (session_ptr == tls_session)
        {

            /* Found the session to delete. */
            break;
        }

        session_ptr = session_ptr -> nx_secure_tls_created_next;

        if (session_ptr == _nx_secure_tls_created_ptr)
        {

            /* This session is not created. */
            return(NX_PTR_ERROR);
        }
    }

    /* Check for appropriate caller.  */
    NX_THREADS_ONLY_CALLER_CHECKING

    status =  _nx_secure_tls_session_delete(tls_session);

    /* Return completion status.  */
    return(status);
}