Add RTEMS_BSD_CONFIG_xxx and rc.conf interface for PF

[Chris Johns]

On 09/08/2016 00:32, Christian Mauderer wrote:
> The appended patch set adds
>
>   - RTEMS_BSD_CONFIG_FIREWALL_PF
>   - RTEMS_BSD_CONFIG_FIREWALL_PFLOG
>   - RTEMS_BSD_CONFIG_FIREWALL_PFSYNC
>
> for enabling the PF firewall. Further it adds an rc.conf interface that
> mimics the one in FreeBSD. It handles the following directives:
>
>   - pf_enable
>   - pf_rules
>   - pf_flags
>
> It can't handle the pf_program directive.
>

OK to push.

Thanks for these patches. It is great to have PF and even better to have 
rc.conf support.

> Please note that I also increased the stack size of the rc-worker-task.
> The task used far less stack than most of the testsuite and therefore
> used an untested configuration.

OK.

Chris