dtls_record.h File Reference

DTLS record protocol. More...

#include "tls.h"

Go to the source code of this file.

Functions
error_t	dtlsWriteProtocolData (TlsContext *context, const uint8_t *data, size_t length, TlsContentType contentType)
	Write protocol data. More...
error_t	dtlsReadProtocolData (TlsContext *context, uint8_t **data, size_t *length, TlsContentType *contentType)
	Read protocol data. More...
error_t	dtlsWriteRecord (TlsContext *context, const uint8_t *data, size_t length, TlsContentType contentType)
	Send a DTLS record. More...
error_t	dtlsReadRecord (TlsContext *context)
	Receive a DTLS record. More...
error_t	dtlsProcessRecord (TlsContext *context)
	Process incoming DTLS record. More...
error_t	dtlsSendFlight (TlsContext *context)
	Send the buffered flight of messages. More...
error_t	dtlsFragmentHandshakeMessage (TlsContext *context, uint16_t version, TlsEncryptionEngine *encryptionEngine, const DtlsHandshake *message)
	Handshake message fragmentation. More...
error_t	dtlsReassembleHandshakeMessage (TlsContext *context, const DtlsHandshake *message)
	Handshake message reassembly algorithm. More...
error_t	dtlsReadDatagram (TlsContext *context, uint8_t *data, size_t size, size_t *length)
	Receive a datagram. More...
error_t	dtlsTick (TlsContext *context)
	Manage retransmission timer. More...
void	dtlsIncSequenceNumber (DtlsSequenceNumber *seqNum)
	Increment sequence number. More...

Detailed Description

DTLS record protocol.

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

2.4.0

Definition in file dtls_record.h.

Function Documentation

dtlsFragmentHandshakeMessage()

error_t dtlsFragmentHandshakeMessage	(	TlsContext *	context,
		uint16_t	version,
		TlsEncryptionEngine *	encryptionEngine,
		const DtlsHandshake *	message
	)

Handshake message fragmentation.

Parameters

[in]	context	Pointer to the TLS context
[in]	version	DTLS version to be used
[in]	encryptionEngine	Pointer to the encryption engine
[in]	message	Pointer the handshake message to be fragmented

Returns

Error code

Definition at line 892 of file dtls_record.c.

dtlsIncSequenceNumber()

void dtlsIncSequenceNumber

(

DtlsSequenceNumber *

seqNum

)

Increment sequence number.

Parameters

[in,out]

seqNum

Pointer to the 48-bit sequence number

Definition at line 1309 of file dtls_record.c.

dtlsProcessRecord()

error_t dtlsProcessRecord

(

TlsContext *

context

)

Process incoming DTLS record.

Parameters

[in]

context

Pointer to the TLS context

Returns

Error code

Definition at line 423 of file dtls_record.c.

dtlsReadDatagram()

error_t dtlsReadDatagram	(	TlsContext *	context,
		uint8_t *	data,
		size_t	size,
		size_t *	length
	)

Receive a datagram.

Parameters

[in]	context	Pointer to the TLS context
[out]	data	Buffer where to store the incoming datagram
[in]	size	Maximum number of bytes that can be received
[out]	length	Number of bytes that have been received

Returns

Error code

Definition at line 1177 of file dtls_record.c.

dtlsReadProtocolData()

error_t dtlsReadProtocolData	(	TlsContext *	context,
		uint8_t **	data,
		size_t *	length,
		TlsContentType *	contentType
	)

Read protocol data.

Parameters

[in]	context	Pointer to the TLS context
[out]	data	Pointer to the received data
[out]	length	Number of data bytes that were received
[out]	contentType	Higher level protocol

Returns

Error code

Definition at line 130 of file dtls_record.c.

dtlsReadRecord()

error_t dtlsReadRecord

(

TlsContext *

context

)

Receive a DTLS record.

Parameters

[in]

context

Pointer to the TLS context

Returns

Error code

Definition at line 321 of file dtls_record.c.

dtlsReassembleHandshakeMessage()

error_t dtlsReassembleHandshakeMessage	(	TlsContext *	context,
		const DtlsHandshake *	message
	)

Handshake message reassembly algorithm.

Parameters

[in]	context	Pointer to the TLS context
[in]	message	Pointer the newly arrived fragment

Returns

Error code

Definition at line 1037 of file dtls_record.c.

dtlsSendFlight()

error_t dtlsSendFlight

(

TlsContext *

context

)

Send the buffered flight of messages.

Parameters

[in]

context

Pointer to the TLS context

Returns

Error code

Definition at line 725 of file dtls_record.c.

dtlsTick()

error_t dtlsTick

(

TlsContext *

context

)

Manage retransmission timer.

Parameters

[in]

context

Pointer to the TLS context

Returns

Error code

Definition at line 1256 of file dtls_record.c.

dtlsWriteProtocolData()

error_t dtlsWriteProtocolData	(	TlsContext *	context,
		const uint8_t *	data,
		size_t	length,
		TlsContentType	contentType
	)

Write protocol data.

Parameters

[in]	context	Pointer to the TLS context
[in]	data	Pointer to the data buffer
[in]	length	Number of data bytes to be written
[in]	contentType	Higher level protocol

Returns

Error code

Definition at line 58 of file dtls_record.c.

dtlsWriteRecord()

error_t dtlsWriteRecord	(	TlsContext *	context,
		const uint8_t *	data,
		size_t	length,
		TlsContentType	contentType
	)

Send a DTLS record.

Parameters

[in]	context	Pointer to the TLS context
[in]	data	Pointer to the record data
[in]	length	Length of the record data
[in]	contentType	Record type

Returns

Error code

Definition at line 227 of file dtls_record.c.