Describe requirements for contributions to hostap.git

This provides explicit description of requirements for contributions
that have been assumed and less formally confirmed in the past.

CONTRIBUTIONS

@@ -0,0 +1,103 @@
+Contributions to hostap.git
+---------------------------
+
+This software is distributed under a permissive open source license to
+allow it to be used in any projects, whether open source or proprietary.
+Contributions to the project are welcome and it is important to maintain
+clear record of contributions and terms under which they are licensed.
+To help with this, following procedure is used to allow acceptance and
+recording of the terms.
+
+These terms are similar to the process used in Linux kernel development.
+The items (a) through (d) are identical to the Developer's Certificate
+of Origin 1.1. To enable cleaner licensing option to be provided in the
+future, an additional item (e) is included.
+
+In case of most files in hostap.git, "under the open source license
+indicated in the file" means that the contribution is licensed both
+under GPL v2 and modified BSD license (see below) and the choice between
+these licenses is given to anyone who redistributes or uses the
+software. As such, the contribution has to be licensed under both
+options to allow this choice.
+
+The additional item (e) is used to collect explicit approval to license
+the contribution with only the modified BSD license (see below), i.e.,
+without the GPL v2 option. This is done to allow simpler licensing terms
+to be used in the future. It should be noted that the modified BSD
+license is compatible with GNU GPL and as such, this possible move to
+simpler licensing option does not prevent use of this software in
+GPL projects.
+
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.
+
+Additionally, I certify that:
+
+(e) The contribution can be licensed under the modified BSD license
+    as shown below even in case of files that are currently licensed
+    under other terms.
+
+
+To indicate your acceptance of these terms, please add the following
+line to each contribution you make to the project:
+
+Signed-hostap: Your Name <your@email.example.org>
+
+using your real name. Pseudonyms or anonymous contributions cannot
+unfortunately be accepted.
+
+
+
+Modified BSD license (no advertisement clause):
+
+Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi> and contributors
+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(s) of the above-listed copyright holder(s) nor the
+   names of its contributors may be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+OWNER 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.

README

@@ -8,6 +8,9 @@ These programs are dual-licensed under both the GPL version 2 and BSD
 license (the one with advertisement clause removed). Either license
 may be used at your option.
 
+If you are submitting changes to the project, please see CONTRIBUTIONS
+file for more instructions.
+
 
 This package may include either wpa_supplicant, hostapd, or both. See
 README file respective subdirectories (wpa_supplicant/README or