strongswan/src/charon/charon/encoding/payloads/cp_payload.h

139 lines
3.3 KiB
C

/**
* @file cp_payload.h
*
* @brief Interface of cp_payload_t.
*
*/
/*
* Copyright (C) 2005 Jan Hutter, Martin Willi
* 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.
*/
#ifndef CP_PAYLOAD_H_
#define CP_PAYLOAD_H_
#include <types.h>
#include <encoding/payloads/payload.h>
#include <encoding/payloads/configuration_attribute.h>
#include <utils/linked_list.h>
/**
* CP_PAYLOAD length in bytes without any proposal substructure.
*
* @ingroup payloads
*/
#define CP_PAYLOAD_HEADER_LENGTH 8
typedef enum config_type_t config_type_t;
/**
* Config Type of an Configuration Payload.
*
* @ingroup payloads
*/
enum config_type_t {
CFG_REQUEST = 1,
CFG_REPLY = 2,
CFG_SET = 3,
CFG_ACK = 4,
};
/**
* string mappings for config_type_t.
*
* @ingroup payloads
*/
extern mapping_t config_type_m[];
typedef struct cp_payload_t cp_payload_t;
/**
* @brief Class representing an IKEv2-CP Payload.
*
* The CP Payload format is described in RFC section 3.15.
*
* @b Constructors:
* - cp_payload_create()
*
* @ingroup payloads
*/
struct cp_payload_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* @brief Creates an iterator of stored configuration_attribute_t objects.
*
* @warning The created iterator has to get destroyed by the caller!
*
* @warning When deleting an attribute using this iterator,
* the length of this configuration_attribute_t has to be refreshed
* by calling get_length()!
*
* @param this calling cp_payload_t object
* @param[in] forward iterator direction (TRUE: front to end)
* @return created iterator_t object
*/
iterator_t *(*create_configuration_attribute_iterator) (cp_payload_t *this, bool forward);
/**
* @brief Adds a configuration_attribute_t object to this object.
*
* @warning The added configuration_attribute_t object is
* getting destroyed in destroy function of cp_payload_t.
*
* @param this calling cp_payload_t object
* @param attribute configuration_attribute_t object to add
*/
void (*add_configuration_attribute) (cp_payload_t *this, configuration_attribute_t *attribute);
/**
* @brief Set the config type.
*
* @param this calling cp_payload_t object
* @param config_type config_type_t to set
*/
void (*set_config_type) (cp_payload_t *this,config_type_t config_type);
/**
* @brief Get the config type.
*
* @param this calling cp_payload_t object
* @return config_type_t
*/
config_type_t (*get_config_type) (cp_payload_t *this);
/**
* @brief Destroys an cp_payload_t object.
*
* @param this cp_payload_t object to destroy
*/
void (*destroy) (cp_payload_t *this);
};
/**
* @brief Creates an empty cp_payload_t object
*
* @return cp_payload_t object
*
* @ingroup payloads
*/
cp_payload_t *cp_payload_create();
#endif /*CP_PAYLOAD_H_*/