This is our old Q&A Site. Please post any new questions and answers at

Update: small dtd tweak - change avp name from IDREF to ID will eliminate one set of issues related to missing reference, but it will generate hundred of errors for every reuse of names like "Unassigned", "Reserved" etc.


I am adding diameter dictionary to wireshark Version 1.8.4 (SVN Rev 46250 from /trunk-1.8).

I would like to run xmllint validation. I tried unchanged directory first and I see that it could not find types and vendor-ids, defined in base. I suppose I am missing something.

Example failures from running command: 'xmllint --dtdvalid dictionary.dtd dictionary.xml sip.xml'

sip.xml:39: element type: validity error : IDREF attribute type-name references an unknown ID "Unsigned32" sip.xml:42: element type: validity error : IDREF attribute type-name references an unknown ID "Unsigned32"

asked 06 Feb '15, 08:35

alex4747's gravatar image

accept rate: 0%

edited 19 Feb '15, 06:42

Well, my only thought would be: the Diameter dictionary is more XML-like than proper XML. Wireshark has its own custom parser for reading the Diameter dictionaries so I'm not sure xmllint is going to help you much anyway.

permanent link

answered 18 Feb '15, 07:29

JeffMorriss's gravatar image

JeffMorriss ♦
accept rate: 27%

Perhaps you should tell us what problem you are trying to fix by running xmllint - like your custom .xml not beeing loaded or something like that...

(18 Feb '15, 08:25) Anders ♦

Custom xml is being loaded but one would never know whether all the parts were loaded or not - I could not find a way to get wireshark diagnostic on dictionary loads.

It seems that I am very naive to assume dictionary.dtd file implied compliance check.

(19 Feb '15, 03:41) alex4747

Make three small tweaks in dictionary.dtd:

  1. Avp name should be CDATA (we cannot use avp name as ID because there are too many duplicates)
  2. Gavp name should be CDATA (we cannot use gavp name as IDREF for the same reason)
  3. Gavp set could be empty (Failed-AVP definition has empty gavp set and it is correct)

Add missing types (Float32, Flag64, Address) to dictionary.xml

And you will see xmllint validation pass.

permanent link

answered 19 Feb '15, 20:02

alex4747's gravatar image

accept rate: 0%

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 06 Feb '15, 08:35

question was seen: 2,400 times

last updated: 19 Feb '15, 20:02

p​o​w​e​r​e​d by O​S​Q​A