246 lines
5.8 KiB
C
246 lines
5.8 KiB
C
/*
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* Copyright (C) 2006 Mike McCauley
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* Copyright (C) 2010 Andreas Steffen, 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 "tnc_imc_manager.h"
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#include <tnc/imc/imc_manager.h>
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#include <tnc/tncifimc.h>
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#include <debug.h>
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#include <library.h>
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#include <utils/linked_list.h>
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typedef struct private_tnc_imc_manager_t private_tnc_imc_manager_t;
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/**
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* Private data of an imc_manager_t object.
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*/
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struct private_tnc_imc_manager_t {
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/**
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* Public members of imc_manager_t.
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*/
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imc_manager_t public;
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/**
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* Linked list of IMCs
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*/
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linked_list_t *imcs;
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/**
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* Next IMC ID to be assigned
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*/
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TNC_IMCID next_imc_id;
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/**
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* Preferred language
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*/
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char *preferred_language;
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};
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METHOD(imc_manager_t, add, bool,
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private_tnc_imc_manager_t *this, imc_t *imc)
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{
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TNC_Version version;
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/* Initialize the module */
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imc->set_id(imc, this->next_imc_id);
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if (imc->initialize(imc->get_id(imc), TNC_IFIMC_VERSION_1,
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TNC_IFIMC_VERSION_1, &version) != TNC_RESULT_SUCCESS)
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{
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DBG1(DBG_TNC, "IMC \"%s\" failed to initialize", imc->get_name(imc));
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return FALSE;
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}
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this->imcs->insert_last(this->imcs, imc);
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this->next_imc_id++;
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if (imc->provide_bind_function(imc->get_id(imc), TNC_TNCC_BindFunction)
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!= TNC_RESULT_SUCCESS)
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{
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DBG1(DBG_TNC, "IMC \"%s\" failed to obtain bind function",
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imc->get_name(imc));
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this->imcs->remove_last(this->imcs, (void**)&imc);
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return FALSE;
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}
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return TRUE;
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}
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METHOD(imc_manager_t, remove_, imc_t*,
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private_tnc_imc_manager_t *this, TNC_IMCID id)
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{
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enumerator_t *enumerator;
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imc_t *imc;
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enumerator = this->imcs->create_enumerator(this->imcs);
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while (enumerator->enumerate(enumerator, &imc))
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{
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if (id == imc->get_id(imc))
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{
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this->imcs->remove_at(this->imcs, enumerator);
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return imc;
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}
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}
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enumerator->destroy(enumerator);
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return NULL;
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}
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METHOD(imc_manager_t, get_preferred_language, char*,
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private_tnc_imc_manager_t *this)
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{
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return this->preferred_language;
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}
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METHOD(imc_manager_t, notify_connection_change, void,
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private_tnc_imc_manager_t *this, TNC_ConnectionID id,
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TNC_ConnectionState state)
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{
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enumerator_t *enumerator;
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imc_t *imc;
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enumerator = this->imcs->create_enumerator(this->imcs);
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while (enumerator->enumerate(enumerator, &imc))
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{
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if (imc->notify_connection_change)
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{
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imc->notify_connection_change(imc->get_id(imc), id, state);
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}
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}
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enumerator->destroy(enumerator);
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}
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METHOD(imc_manager_t, begin_handshake, void,
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private_tnc_imc_manager_t *this, TNC_ConnectionID id)
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{
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enumerator_t *enumerator;
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imc_t *imc;
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enumerator = this->imcs->create_enumerator(this->imcs);
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while (enumerator->enumerate(enumerator, &imc))
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{
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imc->begin_handshake(imc->get_id(imc), id);
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}
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enumerator->destroy(enumerator);
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}
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METHOD(imc_manager_t, set_message_types, TNC_Result,
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private_tnc_imc_manager_t *this, TNC_IMCID id,
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TNC_MessageTypeList supported_types,
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TNC_UInt32 type_count)
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{
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enumerator_t *enumerator;
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imc_t *imc;
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TNC_Result result = TNC_RESULT_FATAL;
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enumerator = this->imcs->create_enumerator(this->imcs);
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while (enumerator->enumerate(enumerator, &imc))
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{
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if (id == imc->get_id(imc))
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{
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imc->set_message_types(imc, supported_types, type_count);
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result = TNC_RESULT_SUCCESS;
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break;
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}
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}
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enumerator->destroy(enumerator);
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return result;
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}
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METHOD(imc_manager_t, receive_message, void,
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private_tnc_imc_manager_t *this, TNC_ConnectionID connection_id,
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TNC_BufferReference message,
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TNC_UInt32 message_len,
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TNC_MessageType message_type)
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{
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enumerator_t *enumerator;
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imc_t *imc;
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enumerator = this->imcs->create_enumerator(this->imcs);
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while (enumerator->enumerate(enumerator, &imc))
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{
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if (imc->receive_message && imc->type_supported(imc, message_type))
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{
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imc->receive_message(imc->get_id(imc), connection_id,
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message, message_len, message_type);
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}
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}
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enumerator->destroy(enumerator);
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}
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METHOD(imc_manager_t, batch_ending, void,
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private_tnc_imc_manager_t *this, TNC_ConnectionID id)
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{
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enumerator_t *enumerator;
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imc_t *imc;
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enumerator = this->imcs->create_enumerator(this->imcs);
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while (enumerator->enumerate(enumerator, &imc))
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{
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if (imc->batch_ending)
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{
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imc->batch_ending(imc->get_id(imc), id);
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}
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}
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enumerator->destroy(enumerator);
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}
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METHOD(imc_manager_t, destroy, void,
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private_tnc_imc_manager_t *this)
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{
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imc_t *imc;
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while (this->imcs->remove_last(this->imcs, (void**)&imc) == SUCCESS)
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{
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if (imc->terminate &&
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imc->terminate(imc->get_id(imc)) != TNC_RESULT_SUCCESS)
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{
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DBG1(DBG_TNC, "IMC \"%s\" not terminated successfully",
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imc->get_name(imc));
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}
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imc->destroy(imc);
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}
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this->imcs->destroy(this->imcs);
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free(this->preferred_language);
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free(this);
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}
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/**
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* Described in header.
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*/
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imc_manager_t* tnc_imc_manager_create(void)
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{
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private_tnc_imc_manager_t *this;
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INIT(this,
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.public = {
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.add = _add,
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.remove = _remove_, /* avoid name conflict with stdio.h */
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.get_preferred_language = _get_preferred_language,
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.notify_connection_change = _notify_connection_change,
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.begin_handshake = _begin_handshake,
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.set_message_types = _set_message_types,
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.receive_message = _receive_message,
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.batch_ending = _batch_ending,
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.destroy = _destroy,
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},
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.imcs = linked_list_create(),
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.next_imc_id = 1,
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.preferred_language = lib->settings->alloc_str(lib->settings,
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"charon.plugins.tnc-imc.preferred_language", "en");
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);
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return &this->public;
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}
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