Hi Martin,
Hi,
I would like to be able to show, for the generated dissectors, the version of the protocol. For 3GPP protocols, in theory they are backwards-compatible, but not at this point in the NR(5G) standards.
This is because 3GPP really messed...
So for the 3GPP .asn files, the first line might be e.g.
-- 3GPP TS 38.331 V15.3.0 (2018-09)
I would really like to be able to teach asn2wrs.py to try to find a suitable such comment and add this text as a generated field inside each external dissector.
Those comments are here because I put them for convenience.
You will not find any standard numbering outside 3GPP world (look at the SUPL ASN.1 dissector for a funky name).
IMHO this should be done manually in the template file (anyway you cannot rely on a comment in the ASN.1 file that is added manually).
So I am thinking of:
- looking at the first few lines of each .asn file that gets included and trying to find a suitably formatted version string
- if one is found, in the template file, add the version protocol item
- for each entry listed under the EXPORTS(?) or PDU(?) sections, add into the template file a version field with the chosen string constant.
Personally I would hate to have a generated item with a spec version nulber each time I decode a PDU.
If you really want this (we survived since years without such infi until 3GPP completely messed NR pretending that NSA was done by December 17, which was a pure bullshit for marketing purpose), please please ensure to add an option (off by default) to control this behavior.
Pascal.
