Wireshark bluetooth controller dissector plugin

packet_parse/nxbt/AUTHORS

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+(These are Github usernames)
+Author:
+Poohl
+
+Credit for Figuring out the protocol to:
+CTCaer
+riking
+Psyvern
+pbsds
+wormyrocks
+mart1nro

packet_parse/nxbt/CMakeLists.txt

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+# CMakeLists.txt
+#
+# Wireshark - Network traffic analyzer
+# By Gerald Combs <[email protected]>
+# Copyright 1998 Gerald Combs
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+
+include(WiresharkPlugin)
+
+# Plugin name and version info (major minor micro extra)
+set_module_info(nxbt 0 1 0 0)
+
+set(DISSECTOR_SRC
+	packet-nxbt.c
+)
+
+set(PLUGIN_FILES
+	plugin.c
+	${DISSECTOR_SRC}
+)
+
+set_source_files_properties(
+	${PLUGIN_FILES}
+	PROPERTIES
+	COMPILE_FLAGS "${WERROR_COMMON_FLAGS}"
+)
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+register_plugin_files(plugin.c
+	plugin
+	${DISSECTOR_SRC}
+)
+
+add_plugin_library(nxbt epan)
+
+target_link_libraries(nxbt epan)
+
+install_plugin(nxbt epan)
+
+# file(GLOB DISSECTOR_HEADERS RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "*.h")
+CHECKAPI(
+	NAME
+	  nxbt
+	SWITCHES
+	  -g abort -g termoutput
+	SOURCES
+	  ${DISSECTOR_SRC}
+	  ${DISSECTOR_HEADERS}
+)
+
+#
+# Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+#
+# Local variables:
+# c-basic-offset: 8
+# tab-width: 8
+# indent-tabs-mode: t
+# End:
+#
+# vi: set shiftwidth=8 tabstop=8 noexpandtab:
+# :indentSize=8:tabSize=8:noTabs=false:
+#

packet_parse/nxbt/README.md

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+
+# NXBT Bluetooth communication dissector
+
+Plugin for Wireshark to dissect the bluetooth communication between a Controller and the Nintendo Switch (NX)
+
+## How to install
+
+Unless there is a compiled binary available for your version of Wireshark, you
+need to compile wireshark from source. below is how one would do this.
+
+Get Wireshark and dependencies
+```
+# apt-get install wireshark-dev Ninja
+$ git clone https://gitlab.com/wireshark/wireshark.git
+```
+
+Copy this plugin into place
+```
+cp -r <this folder> wireshark/plugins/epan/
+```
+
+setup the build environment (in here `wireshark-build`).
+Other make utilities are available, I used `ninja`.
+```
+mkdir wireshark-build
+cd wireshark-build
+cmake -DCUSTOM_PLUGIN_SRC_DIR="plugins/epan/nxbt" -G ninja ../wireshark
+```
+
+compile the entire thing, this takes 10-30 mins the first time.
+```
+ninja
+```
+
+to run this Wireshark, run
+```
+./run/wireshark
+```
+
+or instead copy the compiled plugin in `./run/plugins/<version>/epan/nxbt.so`
+to your local wireshark's plugin directory, e.g. `~/.local/lib/wireshark/plugins`.
+
+## If it isn't picked up
+
+If it shows as HID, ignore this protocoll or disable it, then restart.
+
+If you didn't actually capture bluetooth traffic, you might have to change the
+dissectortable rules in `proto_reg_handoff_nxbt`.