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/*
* Copyright (C) 2005-2006 Martin Willi
* Copyright (C) 2005 Jan Hutter
* Hochschule fuer Technik Rapperswil
*
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*
* $Id: sa_payload.h 3589 2008-03-13 14:14:44Z martin $
*/
/**
* @defgroup sa_payload sa_payload
* @{ @ingroup payloads
*/
#ifndef SA_PAYLOAD_H_
#define SA_PAYLOAD_H_
typedef struct sa_payload_t sa_payload_t;
#include <library.h>
#include <encoding/payloads/payload.h>
#include <encoding/payloads/proposal_substructure.h>
#include <utils/linked_list.h>
/**
* SA_PAYLOAD length in bytes without any proposal substructure.
*/
#define SA_PAYLOAD_HEADER_LENGTH 4
/**
* Class representing an IKEv2-SA Payload.
*
* The SA Payload format is described in RFC section 3.3.
*/
struct sa_payload_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* Creates an iterator of stored proposal_substructure_t objects.
*
* When deleting an proposal using this iterator,
* the length of this transform substructure has to be refreshed
* by calling get_length()!
*
* @param forward iterator direction (TRUE: front to end)
* @return created iterator_t object
*/
iterator_t *(*create_proposal_substructure_iterator) (sa_payload_t *this,
bool forward);
/**
* Adds a proposal_substructure_t object to this object.
*
* @param proposal proposal_substructure_t object to add
*/
void (*add_proposal_substructure) (sa_payload_t *this,
proposal_substructure_t *proposal);
/**
* Gets the proposals in this payload as a list.
*
* @return a list containing proposal_t s
*/
linked_list_t *(*get_proposals) (sa_payload_t *this);
/**
* Add a child proposal (AH/ESP) to the payload.
*
* @param proposal child proposal to add to the payload
*/
void (*add_proposal) (sa_payload_t *this, proposal_t *proposal);
/**
* Destroys an sa_payload_t object.
*/
void (*destroy) (sa_payload_t *this);
};
/**
* Creates an empty sa_payload_t object
*
* @return created sa_payload_t object
*/
sa_payload_t *sa_payload_create(void);
/**
* Creates a sa_payload_t object from a list of proposals.
*
* @param proposals list of proposals to build the payload from
* @return sa_payload_t object
*/
sa_payload_t *sa_payload_create_from_proposal_list(linked_list_t *proposals);
/**
* Creates a sa_payload_t object from a single proposal.
*
* This is only for convenience. Use sa_payload_create_from_proposal_list
* if you want to add more than one proposal.
*
* @param proposal proposal from which the payload should be built.
* @return sa_payload_t object
*/
sa_payload_t *sa_payload_create_from_proposal(proposal_t *proposal);
#endif /*SA_PAYLOAD_H_ @} */
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