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/*
* Copyright (C) 2011-2014 Andreas Steffen
* HSR 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.
*/
/**
* @defgroup pa_tnc_attr_manager pa_tnc_attr_manager
* @{ @ingroup pa_tnc
*/
#ifndef PA_TNC_ATTR_MANAGER_H_
#define PA_TNC_ATTR_MANAGER_H_
typedef struct pa_tnc_attr_manager_t pa_tnc_attr_manager_t;
#include "pa_tnc_attr.h"
#include <library.h>
#include <bio/bio_reader.h>
typedef pa_tnc_attr_t* (*pa_tnc_attr_create_t)(uint32_t type, size_t length,
chunk_t value);
/**
* Manages PA-TNC attributes for arbitrary PENs
*/
struct pa_tnc_attr_manager_t {
/**
* Add vendor-specific attribute names and creation method
*
* @param vendor_id Private Enterprise Number (PEN)
* @param attr_create Vendor-specific attribute create method
* @param attr_names Vendor-specific attribute names
*/
void (*add_vendor)(pa_tnc_attr_manager_t *this, pen_t vendor_id,
pa_tnc_attr_create_t attr_create,
enum_name_t *attr_names);
/**
* Remove vendor-specific attribute names and creation method
*
* @param vendor_id Private Enterprise Number (PEN)
*/
void (*remove_vendor)(pa_tnc_attr_manager_t *this, pen_t vendor_id);
/*
* Return the PA-TNC attribute names for a given vendor ID
*
* @param vendor_id Private Enterprise Number (PEN)
* @return PA-TNC attribute names if found, NULL else
*/
enum_name_t* (*get_names)(pa_tnc_attr_manager_t *this, pen_t vendor_id);
/**
* Create and pre-parse a PA-TNC attribute object from data
*
* @param reader PA-TNC attribute as encoded data
* @param segmented TRUE if attribute is segmented
* @param offset Offset in bytes where an error has been found
* @param msg_info Message info added to an error attribute
* @param error Error attribute if an error occurred
* @return PA-TNC attribute object if supported, NULL else
*/
pa_tnc_attr_t* (*create)(pa_tnc_attr_manager_t *this, bio_reader_t *reader,
bool segmented, uint32_t *offset, chunk_t msg_info,
pa_tnc_attr_t **error);
/**
* Generically construct a PA-TNC attribute from type and data
*
* @param vendor_id Private Enterprise Number (PEN)
* @param type PA-TNC attribute type
* @param value PA-TNC attribute value as encoded data
* @return PA-TNC attribute object if supported, NULL else
*/
pa_tnc_attr_t* (*construct)(pa_tnc_attr_manager_t *this, pen_t vendor_id,
uint32_t type, chunk_t value);
/**
* Destroys a pa_tnc_attr_manager_t object.
*/
void (*destroy)(pa_tnc_attr_manager_t *this);
};
/**
* Create a PA-TNC attribute manager
*/
pa_tnc_attr_manager_t* pa_tnc_attr_manager_create(void);
#endif /** PA_TNC_ATTR_MANAGER_H_ @}*/
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