153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/**
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* @file ts_payload.h
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*
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* @brief Interface of ts_payload_t.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef TS_PAYLOAD_H_
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#define TS_PAYLOAD_H_
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#include <types.h>
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#include <utils/linked_list.h>
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#include <config/traffic_selector.h>
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#include <encoding/payloads/payload.h>
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#include <encoding/payloads/traffic_selector_substructure.h>
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/**
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* Length of a TS payload without the Traffic selectors.
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*
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* @ingroup payloads
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*/
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#define TS_PAYLOAD_HEADER_LENGTH 8
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typedef struct ts_payload_t ts_payload_t;
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/**
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* @brief Class representing an IKEv2 TS payload.
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*
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* The TS payload format is described in RFC section 3.13.
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*
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* @b Constructors:
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* - ts_payload_create()
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* - ts_payload_create_from_traffic_selectors()
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*
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* @ingroup payloads
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*/
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struct ts_payload_t {
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/**
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* The payload_t interface.
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*/
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payload_t payload_interface;
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/**
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* @brief Get the type of TSpayload (TSi or TSr).
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*
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* @param this calling id_payload_t object
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* @return
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* - TRUE if this payload is of type TSi
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* - FALSE if this payload is of type TSr
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*/
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bool (*get_initiator) (ts_payload_t *this);
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/**
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* @brief Set the type of TS payload (TSi or TSr).
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*
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* @param this calling id_payload_t object
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* @param is_initiator
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* - TRUE if this payload is of type TSi
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* - FALSE if this payload is of type TSr
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*/
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void (*set_initiator) (ts_payload_t *this,bool is_initiator);
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/**
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* @brief Adds a traffic_selector_substructure_t object to this object.
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*
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* @warning The added traffic_selector_substructure_t object is
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* getting destroyed in destroy function of ts_payload_t.
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*
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* @param this calling ts_payload_t object
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* @param traffic_selector traffic_selector_substructure_t object to add
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*/
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void (*add_traffic_selector_substructure) (ts_payload_t *this,traffic_selector_substructure_t *traffic_selector);
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/**
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* @brief Creates an iterator of stored traffic_selector_substructure_t objects.
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*
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* @warning The created iterator has to get destroyed by the caller!
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*
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* @warning When removing an traffic_selector_substructure_t object
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* using this iterator, the length of this payload
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* has to get refreshed by calling payload_t.get_length!
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*
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* @param this calling ts_payload_t object
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* @param[in] forward iterator direction (TRUE: front to end)
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* @return created iterator_t object
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*/
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iterator_t *(*create_traffic_selector_substructure_iterator) (ts_payload_t *this, bool forward);
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/**
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* @brief Get a list of nested traffic selectors as traffic_selector_t.
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*
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* Resulting list and its traffic selectors must be destroyed after usage
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*
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* @param this calling ts_payload_t object
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* @return list of traffic selectors
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*/
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linked_list_t *(*get_traffic_selectors) (ts_payload_t *this);
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/**
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* @brief Destroys an ts_payload_t object.
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*
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* @param this ts_payload_t object to destroy
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*/
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void (*destroy) (ts_payload_t *this);
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};
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/**
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* @brief Creates an empty ts_payload_t object.
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*
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*
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* @param is_initiator
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* - TRUE if this payload is of type TSi
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* - FALSE if this payload is of type TSr
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* @return ts_payload_t object
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*
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* @ingroup payloads
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*/
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ts_payload_t *ts_payload_create(bool is_initiator);
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/**
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* @brief Creates ts_payload with a list of traffic_selector_t
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*
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*
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* @param is_initiator
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* - TRUE if this payload is of type TSi
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* - FALSE if this payload is of type TSr
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* @param traffic_selectors list of traffic selectors to include
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* @return ts_payload_t object
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*
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* @ingroup payloads
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*/
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ts_payload_t *ts_payload_create_from_traffic_selectors(bool is_initiator, linked_list_t *traffic_selectors);
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#endif /* TS_PAYLOAD_H_ */
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