Hello,

I have some queries regarding XML data dissection in Wireshark.
Right now all the protocols in Wireshark can be dissected using "pcap" files. 

Now I have a requirement to use XML data to dissect some of the(ranap, mtp3 
etc..) Wireshark protocols. after doing some investigation, I found that in 
order to dissect xml data, separate dtd files need to be written for all the 
required plug-ins. Which are similar to the files in “dtds” directory in 
Wireshark source code. Once after that I have to integrate the dtd files into 
wireshark code so as to make them to dissect XML data. now the following are my 
queries.

1. How to write a DTD file for a protocol? (is there any standard format for 
that? if so, can any one please let me know?)
2. Once after writing the DTD file, how to integrate the file into wireshark 
base code? (is the normal source code compilation is enough? I don’t think it 
will be enough as it is separate file format in wireshark)
3. what additional changes are required for this in the wireshark?
4. Finally, is my above approach for dissecting XML data is correct? 
If any one worked in above type of requirement please help me.

Regards,
Upendra
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