kern/109815: wrong interface identifier at pfil_hooks for vlans + if_bridge

[Bruce M. Simpson]

Hi,

Eygene Ryabinkin wrote:
>
> Speaking about vlan problems: the original problem is to do something
> with VLAN interfaces only because they are sharing the MAC of their
> physical parent. The problem itself is not VLAN-specific -- if there
> will be two physical interfaces with the same MACs and they will be
> bridged, the problem will still be here.
>   
I see this also.

What would be good is if there was a way to record additional MAC 
addresses for each ifnet, in addition to the if_lladdr member. This 
would cut down the cruft in ether_input(), if_bridge(4) and possibly 
also carp(4).

For network cards with more than one perfect hash filter entry in the 
hardware, programming these into the card would *perhaps* be more 
efficient when trying to achieve line rate with gigabit and beyond.

This would most likely require an ABI change. The VLAN handling problem 
doesn't go away; we will still need to check if a bridge member is a 
VLAN interface because we can't uniquely key off the MAC as you point out.

Regards,
BMS