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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"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_secure_tls_session_packet_buffer_set PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function sets the buffer TLS uses to reassemble incoming */
/* messages which may span multiple TCP packets. */
/* */
/* INPUT */
/* */
/* session_ptr TLS control block */
/* buffer_ptr Pointer to buffer */
/* buffer_size Buffer area size */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _nx_secure_tls_session_packet_buffer_set(NX_SECURE_TLS_SESSION *session_ptr,
UCHAR *buffer_ptr, ULONG buffer_size)
{
/* For machines that don't auto-align, check and adjust for four byte alignment. */
if (((ULONG)buffer_ptr) & 0x3)
{
buffer_ptr = (UCHAR *)(((((ULONG)buffer_ptr) & 0xFFFFFFFC) + 4) & 0xFFFFFFFF);
buffer_size -= (((ULONG)buffer_ptr) & 0x3);
}
/* Check size of buffer for alignment after above adjustment. */
if (buffer_size & 0x3)
{
buffer_size = buffer_size & 0xFFFFFFFC;
}
/* Set the buffer and its size. */
session_ptr -> nx_secure_tls_packet_buffer = buffer_ptr;
session_ptr -> nx_secure_tls_packet_buffer_size = buffer_size;
/* Save off the original size of the buffer. */
session_ptr -> nx_secure_tls_packet_buffer_original_size = buffer_size;
return(NX_SUCCESS);
}
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