src/libcharon/plugins/uci/uci_plugin.c

/*
 * Copyright (C) 2008 Thomas Kallenberg
 * 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.
 */

#include "uci_plugin.h"
#include "uci_config.h"
#include "uci_creds.h"
#include "uci_control.h"

#include <daemon.h>

/**
 * UCI package name to use for lookups
 */
#define UCI_PACKAGE "strongswan"

typedef struct private_uci_plugin_t private_uci_plugin_t;

/**
 * private data of uci plugin
 */
struct private_uci_plugin_t {

	/**
	 * implements plugin interface
	 */
	uci_plugin_t public;

	/**
	 * UCI configuration backend
	 */
	uci_config_t *config;

	/**
	 * UCI credential set implementation
	 */
	uci_creds_t *creds;

	/**
	 * UCI parser wrapper
	 */
	uci_parser_t *parser;

	/**
	 * UCI control interface
	 */
	uci_control_t *control;
};

METHOD(plugin_t, get_name, char*,
	private_uci_plugin_t *this)
{
	return "uci";
}

/**
 * Register backend
 */
static bool plugin_cb(private_uci_plugin_t *this,
					  plugin_feature_t *feature, bool reg, void *cb_data)
{
	if (reg)
	{
		charon->backends->add_backend(charon->backends, &this->config->backend);
		lib->credmgr->add_set(lib->credmgr, &this->creds->credential_set);
	}
	else
	{
		charon->backends->remove_backend(charon->backends,
										 &this->config->backend);
		lib->credmgr->remove_set(lib->credmgr, &this->creds->credential_set);
	}
	return TRUE;
}

METHOD(plugin_t, get_features, int,
	private_uci_plugin_t *this, plugin_feature_t *features[])
{
	static plugin_feature_t f[] = {
		PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL),
			PLUGIN_PROVIDE(CUSTOM, "uci"),
	};
	*features = f;
	return countof(f);
}

METHOD(plugin_t, destroy, void,
	private_uci_plugin_t *this)
{
	this->config->destroy(this->config);
	this->creds->destroy(this->creds);
	this->parser->destroy(this->parser);
	this->control->destroy(this->control);
	free(this);
}

/*
 * see header file
 */
plugin_t *uci_plugin_create()
{
	private_uci_plugin_t *this;

	INIT(this,
		.public = {
			.plugin = {
				.get_name = _get_name,
				.get_features = _get_features,
				.destroy = _destroy,
			},
		},
		.parser = uci_parser_create(UCI_PACKAGE),
		.control = uci_control_create(),
	);
	this->config = uci_config_create(this->parser);
	this->creds = uci_creds_create(this->parser);

	return &this->public.plugin;
}