Le 1/17/19 à 6:29 PM, Guy Harris a écrit :
> On Jan 17, 2019, at 6:01 PM, Florian Fainelli <f.faine...@gmail.com> wrote:
>
>> Correct. The other ports are exposed as regular Ethernet network devices.
>
> OK, I've updated a comment in the pull request for that.
>
> So, in any pre-4.19 kernels, does the directory /sys/class/net/{device}/dsa
> exist even if there's no tagging file in that directory?
Neither the directory nor the file actually exist.
>
> Or is there some other way, in pre-4.19 kernels, to determine if a NIC is a
> DSA management-port NIC?
>
> If so, then, even though you can't determine the tag type from userland, you
> could offer all the DLT_s for the various tag types in the DLT list and let
> the user choose which one to use; they might be able to do so if they know
> what type of device they're capturing on. (If the tagging file *does* exist,
> you can just offer them the one DLT_ that's correct for the device.)
>
Good idea, people would certainly know which device they are capturing
on. Thanks!
--
Florian
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