The FreeBSD Project aims to produce a complete, BSD-licensed + operating system allowing consumers of the system to produce + derivative products without constraint or further license + obligations. We invite and greatly appreciate the contribution of + both changes and additions under the two-clause BSD license, and + encourage the adoption of this license by other open source + projects. Use of the BSD license is key to encouraging the + adoption of advanced operating system technology, and on many + notable occasions has been pivotal to widespread use of new + technology.
+ +We accept however that compelling reasons exist to allow + differently-licensed software to be included in the FreeBSD source + tree.
+ +We require any software under alternative licenses to be + carefully isolated in the source tree so that it cannot + contaminate BSD-only components. Such cautious management + encourages licensing clarity and facilitates the production of + BSD-only derivative products.
+ +Unless a special exception is made, no existing BSD-licensed + components may be replaced with differently-licensed software. We + instead encourage FreeBSD and third party developers to seek the + relicensing or reimplementation of critical components under the + BSD license. Such would ease their more integral adoption into + the FreeBSD operating system.
+ +The import of new software licensed under any licenses + other than the BSD license and BSD-Like Licenses (as defined + below) requires the prior approval of the FreeBSD Core Team. + Requests for import must include:
+ +A list of features or bug fixes that the new version or + patches contain, along with evidence that our users need + those features. PRs or references to mailing list + discussions are ideal forms of evidence.
+ +This process should be used for all software imports, + not just those that require Core Team review. The mere + existence of a new version does not justify an import of + software to source or ports.
+A list of FreeBSD branches that may be affected. + Expansions of scope require a new request to and approval + from the FreeBSD Core Team.
+We will allow existing GPLv2 licensed software to be + converted to GPLv3 or other similar license changes on a + case-by-case basis provided that the FreeBSD Core Team is + given appropriate technical justification.
+ +Each piece of software that is being converted to a + different license must be submitted to the FreeBSD Core Team + for approval through this process as though it were a new + piece of software.
+ +For Free Software Foundation maintained software except + GCC, GDB, and binutils, all patches posted after the date the + software switched to GPLv3 will be considered to be covered by + the GPLv3 and thus will be subject to this rule. For GCC, GDB + and binutils we accept the community practice of allowing + patches to be relicensed under GPLv2 at the patch author's + discretion. The author's permission must be documented in the + commit message for each patch that is committed.
+The following licenses are considered to be acceptable BSD-Like + Licenses for the purpose of this Policy. They must be reproduced + verbatim on any new code. Deviations or the use of any other + license must be approved by the FreeBSD Core Team:
+ +The 2 clause version of the BSD license
+ ++/*- + * Copyright (c) [year] [your name] + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * [id for your version control system, if any] + */ ++
The 3 clause version of the BSD license
+ ++/*- + * Copyright (c) [year] [your name] + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of its contributors may + * be used to endorse or promote products derived from this software + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * [id for your version control system, if any] + */ ++
The ISC License
+ ++/*- + * Copyright (c) [year] [copyright holder] + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * [id for your version control system, if any] + */ ++
The MIT License
+ ++/*- + * Copyright (c) [year] [copyright holders] + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * [id for your version control system, if any] + */ ++