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On Sat, Oct 24, 2020 at 5:32 PM Michael Richardson <m...@sandelman.ca> wrote:
>
>
> Aki Van Ness <aki.vann...@gmail.com> wrote:
> > Yeah it might be possible to use something like a single DLT. The issue
> > I can possibly forsee with that is PCI, PCI-X, and PCI-Express are all
> > slightly different enough to be a pain to group together into a single
> > structure.
>
> > It might be better to have either each type be its own DLT or if it
> > must be one DLT a layered approach with a meta-header of sorts that
> > just describes some of the generic information about the link, like
> > it's type, etc. then have a sub-section whose interpretation is
> > dependent on the link type.
>
> > I'm more partial towards the former than the latter personally, but I
> > understand not wanting to add a bunch of DLTs at once.
>
> If you prefer to use three/four DLTs, that's probably not a problem.
> If you wind up needing 20, then a distinguished union is probably a better
> solution. (uhm. "distinguished union" seems not the be term I want....)
> A layered solution.
>
> https://github.com/the-tcpdump-group/libpcap/blob/master/doc/DLT_ALLOCATE_HOWTO.md
>
Okay, that sounds fair.
Would the best thing for me to do is to just spin up a PR for libpcap
to add the DLTs / Link types as PoC and get feedback there?
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