started migration to encryption plugins

src/libstrongswan/plugins/blowfish/Makefile.am

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+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan
+
+AM_CFLAGS = -rdynamic
+
+plugin_LTLIBRARIES = libstrongswan-blowfish.la
+
+libstrongswan_blowfish_la_SOURCES = blowfish_plugin.h blowfish_plugin.c blowfish_crypter.c blowfish_crypter.h
+libstrongswan_blowfish_la_LDFLAGS = -module
+

src/libstrongswan/plugins/blowfish/blowfish_crypter.h

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+/*
+ * Copyright (C) 2005-2008 Martin Willi
+ * Copyright (C) 2009 Andreas Steffen
+ * 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 blowfish_crypter blowfish_crypter
+ * @{ @ingroup blowfish_p
+ */
+
+#ifndef BLOWFISH_CRYPTER_H_
+#define BLOWFISH_CRYPTER_H_
+
+typedef struct blowfish_crypter_t blowfish_crypter_t;
+
+#include <crypto/crypters/crypter.h>
+
+/**
+ * Class implementing the Blowfish encryption algorithm.
+ */
+struct blowfish_crypter_t {
+	
+	/**
+	 * The crypter_t interface.
+	 */
+	crypter_t crypter_interface;
+};
+
+/**
+ * Constructor to create blowfish_crypter_t objects.
+ * 
+ * @param key_size		key size in bytes
+ * @param algo			algorithm to implement
+ * @return				blowfish_crypter_t object, NULL if not supported
+ */
+blowfish_crypter_t *blowfish_crypter_create(encryption_algorithm_t algo,
+								  size_t key_size);
+
+#endif /** BLOWFISH_CRYPTER_H_ @}*/

src/libstrongswan/plugins/blowfish/blowfish_plugin.c

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+/*
+ * Copyright (C) 2008 Martin Willi
+ * Copyright (C) 2009 Andreas Steffen
+ * 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 "blowfish_plugin.h"
+
+#include <library.h>
+#include "blowfish_crypter.h"
+
+typedef struct private_blowfish_plugin_t private_blowfish_plugin_t;
+
+/**
+ * private data of blowfish_plugin
+ */
+struct private_blowfish_plugin_t {
+
+	/**
+	 * public functions
+	 */
+	blowfish_plugin_t public;
+};
+
+/**
+ * Implementation of blowfish_plugin_t.destroy
+ */
+static void destroy(private_blowfish_plugin_t *this)
+{
+	lib->crypto->remove_crypter(lib->crypto,
+								(crypter_constructor_t)blowfish_crypter_create);
+	free(this);
+}
+
+/*
+ * see header file
+ */
+plugin_t *plugin_create()
+{
+	private_blowfish_plugin_t *this = malloc_thing(private_blowfish_plugin_t);
+	
+	this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
+	
+	lib->crypto->add_crypter(lib->crypto, ENCR_BLOWFISH,
+							 (crypter_constructor_t)blowfish_crypter_create);
+	
+	return &this->public.plugin;
+}
+

src/libstrongswan/plugins/blowfish/blowfish_plugin.h

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+/*
+ * Copyright (C) 2008 Martin Willi
+ * Copyright (C) 2009 Andreas Steffen
+ * 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 blowfish_p blowfish
+ * @ingroup plugins
+ *
+ * @defgroup blowfish_plugin blowfish_plugin
+ * @{ @ingroup blowfish_p
+ */
+
+#ifndef BLOWFISH_PLUGIN_H_
+#define BLOWFISH_PLUGIN_H_
+
+#include <plugins/plugin.h>
+
+typedef struct blowfish_plugin_t blowfish_plugin_t;
+
+/**
+ * Plugin implementing Blowfish based algorithms in software.
+ */
+struct blowfish_plugin_t {
+
+	/**
+	 * implements plugin interface
+	 */
+	plugin_t plugin;
+};
+
+/**
+ * Create a blowfish_plugin instance.
+ */
+plugin_t *plugin_create();
+
+#endif /** BLOWFISH_PLUGIN_H_ @}*/