VNET branch destiny

[Ernie Luzar]

peter.blok at bsd4all.org wrote:
> There have been issues with pf if I recall correctly. I currently have issues with stable, pf and vnet. There is an issue with pf table entries when an interface is moved to a different vnet.
> 
> Does anyone no if there is a specific fix for this that hasn’t been ported to stable? I haven’t had the time to test this on current.
> 
> Peter

PF was fixed in 11.0 to not panic when run on a host that has vimage 
compiled into the kernel. On 11.0 you can configure pf to run in a vnet 
jail but it really does not enforce any firewall rules because pf needs 
access to the kernel which jail(8) is blocking by design. As far as I 
know this is a show shopper that can not be fixed without a pf rewrite 
changing the way it works internally.

This PR gives all the details
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212013