nx_secure/src/nxe_secure_tls_metadata_size_calculate.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 "nx_secure_tls.h"

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

NX_SECURE_CALLER_CHECKING_EXTERNS

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _nxe_secure_tls_metadata_size_calculate              PORTABLE C     */
/*                                                           6.4.3        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Timothy Stapko, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function checks for errors in the                              */
/*    _nx_secure_tls_metadata_size_calculate call                         */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    cipher_table                          Ciphersuite table to analyze  */
/*    metadata_size                         Size needed to support the    */
/*                                           given ciphersuite table      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _nx_secure_tls_metadata_size_calculate                              */
/*                                          Actual metadata size          */
/*                                            calculate call              */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/**************************************************************************/
UINT _nxe_secure_tls_metadata_size_calculate(const NX_SECURE_TLS_CRYPTO *cipher_table,
                                             ULONG *metadata_size)
{
UINT status;

    if ((cipher_table == NX_NULL) || (metadata_size == NX_NULL))
    {
        return(NX_PTR_ERROR);
    }

    /* Check for appropriate caller.  */
    NX_THREADS_ONLY_CALLER_CHECKING

    status = _nx_secure_tls_metadata_size_calculate(cipher_table, metadata_size);
    return(status);
}