Re: vlan tagged packets and libpcap breakage

[Daniel Borkmann <danborkmann () iogearbox net>]

On Mon, Dec 17, 2012 at 11:35 AM, Guy Harris <guy () alum mit edu> wrote:
> On Dec 17, 2012, at 1:50 AM, "David Laight" <David.Laight () ACULAB COM> wrote:
>
> > How are you going to tell whether a feature is present in a non-Linux
> > kernel ?
>
> The Linux memory-mapped capture mechanism is not present in a non-Linux kernel, so all the libpcap work involved here 
> would, if necessary on other platforms, have to be done differently on those platforms.  Those platforms would have 
> to have their own mechanisms to indicate whether any changes to filter code, processing of VLAN tags supplied out of 
> band, etc. would need to be done.
>
> The same would apply to other additional features of the Linux memory-mapped capture mechanism that require changes 
> in libpcap.

Exactly.
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