tls13_client_misc.c File Reference

Helper functions for TLS 1.3 client. More...

#include "tls.h"
#include "tls_handshake.h"
#include "tls_client.h"
#include "tls_common.h"
#include "tls_transcript_hash.h"
#include "tls_record.h"
#include "tls_misc.h"
#include "tls13_client_misc.h"
#include "tls13_key_material.h"
#include "tls13_ticket.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   TLS_TRACE_LEVEL

Functions
bool_t	tls13IsHelloRetryRequest (const TlsServerHello *message, size_t length)
	Check whether an incoming ServerHello message is a HelloRetryRequest. More...
error_t	tls13ComputePskBinders (TlsContext *context, const void *clientHello, size_t clientHelloLen, const Tls13PskIdentityList *identityList, Tls13PskBinderList *binderList)
	Compute PSK binder values. More...
error_t	tls13SendEarlyData (TlsContext *context, const void *data, size_t length, size_t *written)
	Send early data to the remote TLS server. More...

Detailed Description

Helper functions for TLS 1.3 client.

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneSSL Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.4.4

Definition in file tls13_client_misc.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   TLS_TRACE_LEVEL

Definition at line 32 of file tls13_client_misc.c.

Function Documentation

tls13ComputePskBinders()

error_t tls13ComputePskBinders	(	TlsContext *	context,
		const void *	clientHello,
		size_t	clientHelloLen,
		const Tls13PskIdentityList *	identityList,
		Tls13PskBinderList *	binderList
	)

Compute PSK binder values.

Parameters

[in]	context	Pointer to the TLS context
[in]	clientHello	Pointer to the ClientHello message
[in]	clientHelloLen	Length of the ClientHello message
[in]	identityList	List of the identities that the client is willing to negotiate with the server
[in,out]	binderList	List of HMAC values, one for each PSK offered in the PreSharedKey extension

Returns

Error code

Definition at line 96 of file tls13_client_misc.c.

tls13IsHelloRetryRequest()

bool_t tls13IsHelloRetryRequest	(	const TlsServerHello *	message,
		size_t	length
	)

Check whether an incoming ServerHello message is a HelloRetryRequest.

Parameters

[in]	message	Pointer to the ServerHello message
[in]	length	Length of the ServerHello message

Returns

TRUE is the message is a HelloRetryRequest, else FALSE

Definition at line 59 of file tls13_client_misc.c.

tls13SendEarlyData()

error_t tls13SendEarlyData	(	TlsContext *	context,
		const void *	data,
		size_t	length,
		size_t *	written
	)

Send early data to the remote TLS server.

Parameters

[in]	context	Pointer to the TLS context
[in]	data	Pointer to a buffer containing the data to be transmitted
[in]	length	Number of bytes to be transmitted
[out]	written	Actual number of bytes written

Returns

Error code

Definition at line 192 of file tls13_client_misc.c.