GPLv2 License Text for strongswan¶
The following license text applies to strongswan:
Except for code in the blowfish, des, md4 and md5 plugins (see below) the following terms apply: For copyright information see the headers of individual source files. 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. 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. You should have received a copy of the GNU General Public License along with this program; if not, see <http://www.gnu.org/licenses>. Linking strongSwan statically or dynamically with other modules is making a combined work based on strongSwan. Thus, the terms and conditions of the GNU General Public License cover the whole combination. In addition, as a special exception, the copyright holders of strongSwan give you permission to combine strongSwan with free software programs or libraries that are released under the GNU LGPL and with code included in the standard release of the OpenSSL project's OpenSSL library under the OpenSSL or SSLeay licenses (or modified versions of such code, with unchanged license). You may copy and distribute such a system following the terms of the GNU GPL for strongSwan and the licenses of the other code concerned, provided that you include the source code of that other code when and as the GNU GPL requires distribution of source code. Note that people who make modified versions of strongSwan are not obligated to grant this special exception for their modified versions; it is their choice whether to do so. The GNU General Public License gives permission to release a modified version without this exception; this exception also makes it possible to release a modified version which carries forward this exception. The DES implementation in the des plugin and the Blowfish implementation in the blowfish plugin are under a BSD style license (see source files for details). Note that these parts have an advertising clause in it. The MD4 and MD5 implementations in the md4 and md5 plugins are from RSA Data Security Inc., so this package must include the following phrase: "derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm".