281 lines
6.4 KiB
C
281 lines
6.4 KiB
C
/*
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* Copyright (C) 2011-2012 Sansar Choinyambuu
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* Copyright (C) 2011-2014 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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#include "imc_attestation_state.h"
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#include <imcv.h>
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#include <tncif_names.h>
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#include <collections/linked_list.h>
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#include <utils/debug.h>
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typedef struct private_imc_attestation_state_t private_imc_attestation_state_t;
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typedef struct func_comp_t func_comp_t;
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/**
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* Private data of an imc_attestation_state_t object.
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*/
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struct private_imc_attestation_state_t {
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/**
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* Public members of imc_attestation_state_t
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*/
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imc_attestation_state_t public;
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/**
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* TNCCS connection ID
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*/
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TNC_ConnectionID connection_id;
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/**
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* TNCCS connection state
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*/
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TNC_ConnectionState state;
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/**
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* Assessment/Evaluation Result
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*/
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TNC_IMV_Evaluation_Result result;
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/**
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* Does the TNCCS connection support long message types?
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*/
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bool has_long;
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/**
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* Does the TNCCS connection support exclusive delivery?
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*/
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bool has_excl;
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/**
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* Maximum PA-TNC message size for this TNCCS connection
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*/
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uint32_t max_msg_len;
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/**
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* PA-TNC attribute segmentation contracts associated with TNCCS connection
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*/
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seg_contract_manager_t *contracts;
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/**
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* PTS object
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*/
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pts_t *pts;
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/**
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* List of Functional Components
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*/
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linked_list_t *components;
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/**
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* Functional Component Evidence cache list
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*/
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linked_list_t *list;
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};
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METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
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private_imc_attestation_state_t *this)
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{
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return this->connection_id;
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}
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METHOD(imc_state_t, has_long, bool,
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private_imc_attestation_state_t *this)
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{
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return this->has_long;
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}
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METHOD(imc_state_t, has_excl, bool,
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private_imc_attestation_state_t *this)
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{
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return this->has_excl;
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}
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METHOD(imc_state_t, set_flags, void,
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private_imc_attestation_state_t *this, bool has_long, bool has_excl)
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{
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this->has_long = has_long;
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this->has_excl = has_excl;
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}
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METHOD(imc_state_t, set_max_msg_len, void,
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private_imc_attestation_state_t *this, uint32_t max_msg_len)
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{
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this->max_msg_len = max_msg_len;
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}
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METHOD(imc_state_t, get_max_msg_len, uint32_t,
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private_imc_attestation_state_t *this)
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{
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return this->max_msg_len;
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}
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METHOD(imc_state_t, get_contracts, seg_contract_manager_t*,
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private_imc_attestation_state_t *this)
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{
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return this->contracts;
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}
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METHOD(imc_state_t, change_state, TNC_ConnectionState,
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private_imc_attestation_state_t *this, TNC_ConnectionState new_state)
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{
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TNC_ConnectionState old_state;
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old_state = this->state;
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this->state = new_state;
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return old_state;
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}
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METHOD(imc_state_t, set_result, void,
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private_imc_attestation_state_t *this, TNC_IMCID id,
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TNC_IMV_Evaluation_Result result)
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{
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this->result = result;
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}
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METHOD(imc_state_t, get_result, bool,
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private_imc_attestation_state_t *this, TNC_IMCID id,
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TNC_IMV_Evaluation_Result *result)
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{
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if (result)
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{
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*result = this->result;
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}
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return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
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}
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METHOD(imc_state_t, reset, void,
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private_imc_attestation_state_t *this)
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{
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this->result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
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this->components->destroy_offset(this->components,
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offsetof(pts_component_t, destroy));
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this->components = linked_list_create();
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this->list->destroy_offset(this->list,
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offsetof(pts_comp_evidence_t, destroy));
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this->list = linked_list_create();
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this->pts->destroy(this->pts);
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this->pts = pts_create(TRUE);
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}
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METHOD(imc_state_t, destroy, void,
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private_imc_attestation_state_t *this)
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{
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this->pts->destroy(this->pts);
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this->components->destroy_offset(this->components,
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offsetof(pts_component_t, destroy));
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this->list->destroy_offset(this->list,
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offsetof(pts_comp_evidence_t, destroy));
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this->contracts->destroy(this->contracts);
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free(this);
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}
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METHOD(imc_attestation_state_t, get_pts, pts_t*,
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private_imc_attestation_state_t *this)
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{
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return this->pts;
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}
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METHOD(imc_attestation_state_t, create_component, pts_component_t*,
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private_imc_attestation_state_t *this, pts_comp_func_name_t *name,
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uint32_t depth)
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{
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enumerator_t *enumerator;
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pts_component_t *component;
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bool found = FALSE;
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enumerator = this->components->create_enumerator(this->components);
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while (enumerator->enumerate(enumerator, &component))
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{
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if (name->equals(name, component->get_comp_func_name(component)))
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{
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found = TRUE;
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break;
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}
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}
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enumerator->destroy(enumerator);
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if (!found)
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{
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component = imcv_pts_components->create(imcv_pts_components,
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name, depth, NULL);
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if (!component)
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{
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return NULL;
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}
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this->components->insert_last(this->components, component);
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}
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return component;
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}
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METHOD(imc_attestation_state_t, add_evidence, void,
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private_imc_attestation_state_t *this, pts_comp_evidence_t *evid)
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{
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this->list->insert_last(this->list, evid);
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}
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METHOD(imc_attestation_state_t, next_evidence, bool,
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private_imc_attestation_state_t *this, pts_comp_evidence_t **evid)
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{
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return this->list->remove_first(this->list, (void**)evid) == SUCCESS;
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}
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/**
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* Described in header.
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*/
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imc_state_t *imc_attestation_state_create(TNC_ConnectionID connection_id)
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{
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private_imc_attestation_state_t *this;
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INIT(this,
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.public = {
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.interface = {
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.get_connection_id = _get_connection_id,
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.has_long = _has_long,
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.has_excl = _has_excl,
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.set_flags = _set_flags,
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.set_max_msg_len = _set_max_msg_len,
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.get_max_msg_len = _get_max_msg_len,
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.get_contracts = _get_contracts,
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.change_state = _change_state,
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.set_result = _set_result,
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.get_result = _get_result,
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.reset = _reset,
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.destroy = _destroy,
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},
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.get_pts = _get_pts,
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.create_component = _create_component,
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.add_evidence = _add_evidence,
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.next_evidence = _next_evidence,
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},
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.connection_id = connection_id,
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.state = TNC_CONNECTION_STATE_CREATE,
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.result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
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.contracts = seg_contract_manager_create(),
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.pts = pts_create(TRUE),
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.components = linked_list_create(),
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.list = linked_list_create(),
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);
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return &this->public.interface;
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}
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