Wireshark-bugs: [Wireshark-bugs] [Bug 13141] TCP options type filed interpreted as IP options ty
Comment # 9
on bug 13141
from Michael Mann
(In reply to Alexis La Goutte from comment #8)
> (In reply to Michael Mann from comment #7)
> > (In reply to Alexis La Goutte from comment #6)
> > > Yes and no...
> > > if there is a Unknown TCP option, it will try to use IP Option "Header" by
> > > default...
> >
> > I see the mistake. Working on a fix now (as part of another patch).
> > Unfortunately I don't see a good solution that's backportable (would require
> > changing signature of dissect_ip_tcp_options).
>
> I think, there is this issue from (very) longer time... and can wait the
> next major release for be fixed (and not often people say, there is a
> problem...)
I think it "works" because the "tcp.options.type.number" filter has a mask that
still includes correct EOL and NOP option values, but every option for TCP
should really be filterable with "tcp.option_kind". And changing stable
releases to do that would involve changing dissect_ip_tcp_options() signature.
That's not something I'm fond of and neither is changing filter names, even if
it is for the better.
I should have a patch for the fix ready today.
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