nx_secure/src/nx_secure_tls_session_send.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"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _nx_secure_tls_session_send                         PORTABLE C      */
/*                                                           6.4.3        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Timothy Stapko, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function sends data using an active TLS session, handling      */
/*    all encryption and hashing before sending data over the established */
/*    TCP socket connection.                    .                         */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    tls_session                           TLS control block             */
/*    packet_ptr                            Pointer to packet data        */
/*    wait_option                           Indicates behavior if TCP     */
/*                                          socket cannot send packet     */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _nx_secure_tls_send_record            Send TLS encrypted record     */
/*    tx_mutex_get                          Get protection mutex          */
/*    tx_mutex_put                          Put protection mutex          */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/**************************************************************************/
UINT _nx_secure_tls_session_send(NX_SECURE_TLS_SESSION *tls_session, NX_PACKET *packet_ptr,
                                 ULONG wait_option)
{
UINT status;


    /* Get the protection. */
    tx_mutex_get(&_nx_secure_tls_protection, TX_WAIT_FOREVER);

    status = _nx_secure_tls_send_record(tls_session, packet_ptr, NX_SECURE_TLS_APPLICATION_DATA, wait_option);

    if(status != NX_SUCCESS)
    {
        /* Make sure we clear keys on errors. */
        _nx_secure_tls_session_reset(tls_session);
    }

    /* Release the protection. */
    tx_mutex_put(&_nx_secure_tls_protection);

    return(status);
}