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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_msg pa_tnc_msg
* @{ @ingroup pa_tnc
*/
#ifndef PA_TNC_MSG_H_
#define PA_TNC_MSG_H_
typedef struct pa_tnc_msg_t pa_tnc_msg_t;
#define PA_TNC_VERSION 0x01
#define PA_TNC_HEADER_SIZE 8
#include "pa_tnc_attr.h"
#include <library.h>
/**
* Interface for the RFC 5792 PA-TNC Posture Attribute protocol.
*
*/
struct pa_tnc_msg_t {
/**
* Get the encoding of the PA-TNC message
*
* @return encoded PA-TNC message
*/
chunk_t (*get_encoding)(pa_tnc_msg_t *this);
/**
* Add a PA-TNC attribute
*
* @param attr PA-TNC attribute to be addedd
* @return TRUE if attribute fit into message and was added
*/
bool (*add_attribute)(pa_tnc_msg_t *this, pa_tnc_attr_t* attr);
/**
* Build the PA-TNC message
*
* @return TRUE if PA-TNC message was built successfully
*/
bool (*build)(pa_tnc_msg_t *this);
/**
* Process the PA-TNC message
*
* @return return processing status
*/
status_t (*process)(pa_tnc_msg_t *this);
/**
* Process all IETF standard error PA-TNC attributes
*
* @return TRUE if at least one error attribute processed
*/
bool (*process_ietf_std_errors)(pa_tnc_msg_t *this);
/**
* Enumerates over all PA-TNC attributes
*
* @return return attribute enumerator
*/
enumerator_t* (*create_attribute_enumerator)(pa_tnc_msg_t *this);
/**
* Enumerates over all parsing errors
*
* @return return error enumerator
*/
enumerator_t* (*create_error_enumerator)(pa_tnc_msg_t *this);
/**
* Destroys a pa_tnc_msg_t object.
*/
void (*destroy)(pa_tnc_msg_t *this);
};
/**
* Create an empty PA-TNC message
*/
pa_tnc_msg_t* pa_tnc_msg_create(size_t max_msg_len);
/**
* Create an unprocessed PA-TNC message from received data
*
* @param data PA-TNC message data
*/
pa_tnc_msg_t* pa_tnc_msg_create_from_data(chunk_t data);
#endif /** PA_TNC_MSG_H_ @}*/
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