Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+=====================
+ Wireshark Dissector
+=====================
+
+Wireshark has support for the Ceph protocol and it will be shipped in the 1.12.1
+release.
+
+Using
+=====
+
+To use the Wireshark dissector you must build it from `git`__, the process is
+outlined in great detail in the `Building and Installing`__ section of the
+`Wireshark Users Guide`__.
+
+__ `Wireshark git`_
+__ WSUG_BI_
+__ WSUG_
+
+Developing
+==========
+
+The Ceph dissector lives in `Wireshark git`_ at
+``epan/dissectors/packet-ceph.c``.  At the top of that file there are some
+comments explaining how to insert new functionality or to update the encoding
+of existing types.
+
+Before you start hacking on Wireshark code you should look at the
+``doc/README.developer`` and ``doc/README.dissector`` documents as they explain
+the basics of writing dissectors.  After reading those two documents you should
+be prepared to work on the Ceph dissector.  `The Wireshark
+developers guide`__ also contains a lot of useful information but it is less
+directed and is more useful as a reference then an introduction.
+
+__ WSDG_
+
+.. _WSUG: https://www.wireshark.org/docs/wsug_html_chunked/
+.. _WSDG: https://www.wireshark.org/docs/wsdg_html_chunked/
+.. _WSUG_BI: https://www.wireshark.org/docs/wsug_html_chunked/ChapterBuildInstall.html
+.. _Wireshark git: https://www.wireshark.org/develop.html
+
+.. vi: textwidth=80 noexpandtab