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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_send PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks for errors in the TLS session send call. */
/* */
/* 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_session_send Actual TLS session send call. */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _nxe_secure_tls_session_send(NX_SECURE_TLS_SESSION *tls_session, NX_PACKET *packet_ptr,
ULONG wait_option)
{
UINT status;
if (tls_session == NX_NULL)
{
return(NX_PTR_ERROR);
}
if (packet_ptr == NX_NULL)
{
return(NX_PTR_ERROR);
}
if (tls_session -> nx_secure_tls_tcp_socket == NX_NULL)
{
return(NX_SECURE_TLS_SESSION_UNINITIALIZED);
}
/* Make sure the session is initialized. */
if (tls_session -> nx_secure_tls_id != NX_SECURE_TLS_ID)
{
return(NX_SECURE_TLS_SESSION_UNINITIALIZED);
}
/* Check the plaintext length as the fragmentation is not supported currently. */
if (packet_ptr -> nx_packet_length > NX_SECURE_TLS_MAX_PLAINTEXT_LENGTH)
{
return(NX_SECURE_TLS_RECORD_OVERFLOW);
}
/* Check for appropriate caller. */
NX_THREADS_ONLY_CALLER_CHECKING
if (packet_ptr -> nx_packet_length == 0)
{
/* Must check for empty packets here, as TLS data will make a packet's contents
non-empty. _nx_tcp_socket_send_internal has a check for an empty packet
that correctly works in an HTTP session but will result in a false negative if
the session is HTTPS. Thus, this check is performed before the TLS session
operations that modify the packet. */
return(NX_INVALID_PACKET);
}
status = _nx_secure_tls_session_send(tls_session, packet_ptr, wait_option);
/* Return completion status. */
return(status);
}
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