Wireshark-bugs: [Wireshark-bugs] [Bug 5784] New dissector for GSM A-bis OML

Date: Sat, 10 Dec 2011 01:06:53 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5784

--- Comment #9 from Harald Welte <laforge@xxxxxxxxxxxx> 2011-12-10 01:06:51 PST ---
(In reply to comment #7)
> __attribute__ ((packed)) isn't portable--that's gotta go.

Oh yes, I keep getting about wireshark support for non-gcc compilers. Sorry.

> And I'm pretty uncomfortable with all this mucking around inside of
> value_string_ext's.  AFAICS this is to use different value_strings for the same
> hf entry depending on a preference.  Why not just use 2 hf's?  

The problem with the various A-bis OML dialects (and we have more of them on
our schedule to submit) is:

* there are certain elements that are defined in the 12.21 spec
* a lot of those from 12.21 are used by many dialects
* each dialect adds their own ones (conflicting with other dialects)
* some dialects even override some of the 12.21 specified ones

The 'mucking around' is intended to avoid copy+paste style programming, where
the TS 12.21 standard elements would have to be copy+pasted across all the
dialects.

I'm happy to go for an alternative solution, as long as it avoids copy+pasting.

> Or use BASE_CUSTOM?

Interestingly I've never heard of it so far.  After a quick look, it might be
useful.  I'll try to modify the dissector to use this instead and report bag to
this ticket.

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