[fedfs-utils] [PATCH 4/6] README: Add patent disclaimer language to README

[Chuck Lever]

Last year, Microsoft made a formal IPR for technology described in
the FedFS NSDB draft.  At IETF 81, NetApp formally announced the
existence of a patent which covers FedFS-related technology.

Split out a new section for IP disclaimers in our README file, and
document these patents.

Signed-off-by: Chuck Lever <chuck.lever at oracle.com>
---

 README |   30 +++++++++++++++++++++++++-----
 1 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/README b/README
index 6afab7a..0fed1ae 100644
--- a/README
+++ b/README
@@ -36,6 +36,31 @@ compatible with the next release of this package, nor with
 implementations from other vendors.
 
 
+Intellectual Property Disclaimer
+------------ -------- ----------
+
+The implementation in this package is copyright 2010 and 2011, Oracle.
+The code in this package is covered by version 2 of the GNU General
+Public License.  See the COPYING file for details.  A few parts are
+also covered by the IETF's code license, which is a simplified BSD
+license that is compatible with GPLv2.
+
+See also IPR disclosure 1362 (http://datatracker.ietf.org/ipr/1362)
+which discloses coverage of the FedFS NSDB architecture by US Patent
+#5,842,214: "Distributed file system providing a unified name space
+with efficient name resolution," filed by Microsoft Corporation on
+September 24, 1997 but never assigned.
+
+See also IPR disclosure 1634 (http://datatracker.ietf.org/ipr/1634)
+which discloses coverage of technology in this package by US Patent
+#7,933,921: "Referent-controlled location resolution of resources in a
+federated distributed system," filed on November 29, 2006 and assigned
+to NetApp on April 26, 2011.  NetApp has publicly stated its intent to
+release the patent via a Royalty-Free, Reasonable and
+Non-discriminatory Licence to All Implementers, via the usual IETF
+process.
+
+
 Package Synopsis
 ------- --------
 
@@ -44,11 +69,6 @@ This package contains an implementation of the Federated Filesystem
 see RFC 5716, or read the fedfs(7) man page provided in the doc/man
 directory.
 
-This package is copyright 2010 and 2011, Oracle. It's use is covered
-by version 2 of the GNU General Public License.  See the COPYING file
-for details.  A few parts are also covered by the IETF's code license,
-which is a simplified BSD license that is compatible with GPLv2.
-
 Packagers and distributors should review this entire README document
 to understand what is in this package, it's pre-requisites, and any
 security issues related to it.