ESP algorithm negotiation. More...

#include "ipsec/ipsec.h"
#include "ipsec/ipsec_misc.h"
#include "esp/esp.h"
#include "esp/esp_algorithms.h"
#include "ike/ike_algorithms.h"
#include "hash/hash_algorithms.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL ESP_TRACE_LEVEL

Functions
error_t	espSelectEncAlgo (IkeChildSaEntry *childSa, uint16_t encAlgoId, size_t encKeyLen)
	Select the relevant encryption algorithm. More...

error_t	espSelectAuthAlgo (IkeChildSaEntry *childSa, uint16_t authAlgoId)
	Select the relevant MAC algorithm. More...

error_t	espAddSupportedTransforms (IkeContext context, IkeProposal proposal, uint8_t **lastSubstruc)
	Add the supported ESP transforms to the proposal. More...

error_t	espAddSupportedEncTransforms (IkeContext context, IkeProposal proposal, uint8_t **lastSubstruc)
	Add the supported encryption transforms to the proposal. More...

error_t	espAddSupportedAuthTransforms (IkeContext context, IkeProposal proposal, uint8_t **lastSubstruc)
	Add the supported integrity transforms to the proposal. More...

error_t	espAddSupportedEsnTransforms (IkeContext context, IkeProposal proposal, uint8_t **lastSubstruc)
	Add the supported ESN transforms to the proposal. More...

const IkeEncAlgo *	espSelectEncTransform (IkeContext context, const IkeProposal proposal, size_t proposalLen)
	Encryption transform negotiation. More...

uint16_t	espSelectAuthTransform (IkeContext context, const IkeProposal proposal, size_t proposalLen)
	Integrity transform negotiation. More...

uint16_t	espSelectEsnTransform (IkeContext context, const IkeProposal proposal, size_t proposalLen)
	ESN transform negotiation. More...

error_t	espSelectSaProposal (IkeChildSaEntry childSa, const IkeSaPayload payload)
	Select a single proposal. More...

error_t	espCheckSaProposal (IkeChildSaEntry childSa, const IkeSaPayload payload)
	Check whether the selected proposal is acceptable. More...

Detailed Description

ESP algorithm negotiation.

License

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

This file is part of CycloneIPSEC 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 esp_algorithms.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL ESP_TRACE_LEVEL

Definition at line 32 of file esp_algorithms.c.

Function Documentation

◆ espAddSupportedAuthTransforms()

error_t espAddSupportedAuthTransforms	(	IkeContext *	context,
		IkeProposal *	proposal,
		uint8_t **	lastSubstruc
	)

Add the supported integrity transforms to the proposal.

Parameters

[in]	context	Pointer to the IKE context
[in,out]	proposal	Pointer to the Proposal substructure
[in,out]	lastSubstruc	Pointer to the Last Substruc field

Returns: Error code

Definition at line 983 of file esp_algorithms.c.

◆ espAddSupportedEncTransforms()

error_t espAddSupportedEncTransforms	(	IkeContext *	context,
		IkeProposal *	proposal,
		uint8_t **	lastSubstruc
	)

Add the supported encryption transforms to the proposal.

Parameters

[in]	context	Pointer to the IKE context
[in,out]	proposal	Pointer to the Proposal substructure
[in,out]	lastSubstruc	Pointer to the Last Substruc field

Returns: Error code

Definition at line 952 of file esp_algorithms.c.

◆ espAddSupportedEsnTransforms()

error_t espAddSupportedEsnTransforms	(	IkeContext *	context,
		IkeProposal *	proposal,
		uint8_t **	lastSubstruc
	)

Add the supported ESN transforms to the proposal.

Parameters

[in]	context	Pointer to the IKE context
[in,out]	proposal	Pointer to the Proposal substructure
[in,out]	lastSubstruc	Pointer to the Last Substruc field

Returns: Error code

Definition at line 1013 of file esp_algorithms.c.

◆ espAddSupportedTransforms()

error_t espAddSupportedTransforms	(	IkeContext *	context,
		IkeProposal *	proposal,
		uint8_t **	lastSubstruc
	)

Add the supported ESP transforms to the proposal.

Parameters

[in]	context	Pointer to the IKE context
[in,out]	proposal	Pointer to the Proposal substructure
[in,out]	lastSubstruc	Pointer to the Last Substruc field

Returns: Error code

Definition at line 915 of file esp_algorithms.c.

◆ espCheckSaProposal()

error_t espCheckSaProposal	(	IkeChildSaEntry *	childSa,
		const IkeSaPayload *	payload
	)

Check whether the selected proposal is acceptable.

Parameters

[in]	childSa	Pointer to the Child SA
[in]	payload	Pointer to the Security Association payload

Returns: Error code

Definition at line 1321 of file esp_algorithms.c.

◆ espSelectAuthAlgo()

error_t espSelectAuthAlgo	(	IkeChildSaEntry *	childSa,
		uint16_t	authAlgoId
	)

Select the relevant MAC algorithm.

Parameters

[in]	childSa	Pointer to the Child SA
[in]	authAlgoId	Authentication algorithm identifier

Returns: Error code

Definition at line 823 of file esp_algorithms.c.

◆ espSelectAuthTransform()

uint16_t espSelectAuthTransform	(	IkeContext *	context,
		const IkeProposal *	proposal,
		size_t	proposalLen
	)

Integrity transform negotiation.

Parameters

[in]	context	Pointer to the IKE context
[in]	proposal	Pointer to the Proposal substructure
[in]	proposalLen	Length of the Proposal substructure, in bytes

Returns: Selected integrity transform, if any

Definition at line 1159 of file esp_algorithms.c.

◆ espSelectEncAlgo()

error_t espSelectEncAlgo	(	IkeChildSaEntry *	childSa,
		uint16_t	encAlgoId,
		size_t	encKeyLen
	)

Select the relevant encryption algorithm.

Parameters

[in]	childSa	Pointer to the Child SA
[in]	encAlgoId	Encryption algorithm identifier
[in]	encKeyLen	Length of the encryption key, in bytes

Returns: Error code

Definition at line 234 of file esp_algorithms.c.

◆ espSelectEncTransform()

const IkeEncAlgo* espSelectEncTransform	(	IkeContext *	context,
		const IkeProposal *	proposal,
		size_t	proposalLen
	)

Encryption transform negotiation.

Parameters

[in]	context	Pointer to the IKE context
[in]	proposal	Pointer to the Proposal substructure
[in]	proposalLen	Length of the Proposal substructure, in bytes

Returns: Selected encryption transform, if any

Definition at line 1043 of file esp_algorithms.c.

◆ espSelectEsnTransform()

uint16_t espSelectEsnTransform	(	IkeContext *	context,
		const IkeProposal *	proposal,
		size_t	proposalLen
	)

ESN transform negotiation.

Parameters

[in]	context	Pointer to the IKE context
[in]	proposal	Pointer to the Proposal substructure
[in]	proposalLen	Length of the Proposal substructure, in bytes

Returns: Selected ESN transform, if any

Definition at line 1176 of file esp_algorithms.c.

◆ espSelectSaProposal()

error_t espSelectSaProposal	(	IkeChildSaEntry *	childSa,
		const IkeSaPayload *	payload
	)

Select a single proposal.

Parameters

[in]	childSa	Pointer to the Child SA
[in]	payload	Pointer to the Security Association payload

Returns: Error code

Definition at line 1192 of file esp_algorithms.c.

Macros

Functions

Detailed Description

License

Macro Definition Documentation

◆ TRACE_LEVEL

Function Documentation

◆ espAddSupportedAuthTransforms()

◆ espAddSupportedEncTransforms()

◆ espAddSupportedEsnTransforms()

◆ espAddSupportedTransforms()

◆ espCheckSaProposal()

◆ espSelectAuthAlgo()

◆ espSelectAuthTransform()

◆ espSelectEncAlgo()

◆ espSelectEncTransform()

◆ espSelectEsnTransform()

◆ espSelectSaProposal()