117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/*
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* Copyright (C) 2011-2015 Andreas Steffen
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* HSR 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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/**
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* @defgroup pa_tnc_msg pa_tnc_msg
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* @{ @ingroup pa_tnc
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*/
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#ifndef PA_TNC_MSG_H_
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#define PA_TNC_MSG_H_
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typedef struct pa_tnc_msg_t pa_tnc_msg_t;
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#define PA_TNC_VERSION 0x01
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#define PA_TNC_HEADER_SIZE 8
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#include "pa_tnc_attr.h"
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#include <library.h>
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/**
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* Interface for the RFC 5792 PA-TNC Posture Attribute protocol.
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*
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*/
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struct pa_tnc_msg_t {
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/**
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* Get the encoding of the PA-TNC message
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*
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* @return encoded PA-TNC message
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*/
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chunk_t (*get_encoding)(pa_tnc_msg_t *this);
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/**
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* Get the remaining space in octets left in the PA-TNC message
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*
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* @return remaining space or 0 if max_msg_len is not set
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*/
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size_t (*get_space)(pa_tnc_msg_t *this);
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/**
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* Add a PA-TNC attribute
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*
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* @param attr PA-TNC attribute to be added
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* @return TRUE if attribute fit into message and was added
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*/
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bool (*add_attribute)(pa_tnc_msg_t *this, pa_tnc_attr_t* attr);
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/**
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* Build the PA-TNC message
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*
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* @return TRUE if PA-TNC message was built successfully
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*/
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bool (*build)(pa_tnc_msg_t *this);
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/**
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* Process the PA-TNC message
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*
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* @return return processing status
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*/
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status_t (*process)(pa_tnc_msg_t *this);
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/**
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* Process all IETF standard error PA-TNC attributes
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*
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* @param non_fatal_types list of non fatal unsupported attribute types
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* @return TRUE if at least one fatal error processed
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*/
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bool (*process_ietf_std_errors)(pa_tnc_msg_t *this,
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linked_list_t *non_fatal_types);
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/**
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* Enumerates over all PA-TNC attributes
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*
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* @return return attribute enumerator
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*/
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enumerator_t* (*create_attribute_enumerator)(pa_tnc_msg_t *this);
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/**
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* Enumerates over all parsing errors
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*
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* @return return error enumerator
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*/
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enumerator_t* (*create_error_enumerator)(pa_tnc_msg_t *this);
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/**
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* Destroys a pa_tnc_msg_t object.
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*/
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void (*destroy)(pa_tnc_msg_t *this);
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};
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/**
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* Create an empty PA-TNC message
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*/
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pa_tnc_msg_t* pa_tnc_msg_create(size_t max_msg_len);
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/**
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* Create an unprocessed PA-TNC message from received data
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*
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* @param data PA-TNC message data
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*/
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pa_tnc_msg_t* pa_tnc_msg_create_from_data(chunk_t data);
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#endif /** PA_TNC_MSG_H_ @}*/
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