Re: WSDG: "foo" protocol sample capture

["Maynard, Christopher via Wireshark-dev" <wireshark-dev () wireshark org>]

I don't know if there's ever been a companion capture file to test the sample "Foo" dissector or not, so  I created 
one.  I also created a comparable "Foo" dissector written in Lua to complement the C dissector for those who are just 
getting started with Lua.  The Lua dissector contains many links to documentation and covers sections 9.2 through 9.4* 
of the WSDG, meaning that it includes:

    -> Basic dissection
    -> An example preference
    -> Expert info example
    -> Transformation of data (uncompress)

Additionally, it illustrates:
    -> Plugin info
    -> Basic BitOps usage
    -> Handoff to another dissector (the "data" dissector in this example)

The Lua dissector closely matches the equivalent C dissector, but I did make a few changes in order to pass off the 
data and to support decompressing the "Foo" data payload.

If this thing is of any value to anyone, I suppose I could add it to 
https://gitlab.com/wireshark/wireshark/-/wikis/Contrib?  In any case, have a look and see what you think.
- Chris
*I stopped at section 9.4, in other words I did not add support for reassembly, but the sample "Foo" dissector, as 
written, doesn't really lend itself to support reassembly, so if we wanted to illustrate that as well, then we'd first 
have to modify the "Foo" protocol.


From: Wireshark-dev <wireshark-dev-bounces () wireshark org> On Behalf Of chuck c
Sent: Sunday, October 3, 2021 12:36 PM
To: Developer support list for Wireshark <wireshark-dev () wireshark org>
Subject: [Wireshark-dev] WSDG: "foo" protocol sample capture

https://www.wireshark.org/docs/wsdg_html_chunked/ChDissectAdd.html

`Let’s step through adding a basic dissector. We’ll start with the made up "foo" protocol. ...`

Has there ever been a companion capture file to test the sample dissector in the WSDG?











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Attachment: foo.pcap
Description: foo.pcap

Attachment: foo.txt
Description: foo.txt

Attachment: foo.lua
Description: foo.lua

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