Re: git: cfa1a1308709 - main - pfctl: fix recrusive printing of ethernet anchors
- In reply to: Kristof Provost : "Re: git: cfa1a1308709 - main - pfctl: fix recrusive printing of ethernet anchors"
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Date: Fri, 07 Oct 2022 17:27:29 UTC
On 10/7/2022 3:13 AM, Kristof Provost wrote:
> On 3 Oct 2022, at 18:13, Bryan Drewery wrote:
>
> I think there's still a problem here.
>
> pfctl -a '*' -sr works
> pfctl -a 'name/*' -sr does not.
>
>
> So I’ve looked at this a bit more, and I am now going to back away from
> the whole anchor thing, and try to pretend I didn’t see any of the
> tentacled horrors that lurk within.
>
> To give you an idea of the issues, loading the following ruleset:
>
> |anchor "foo" { anchor "bar" { pass in } } |
>
> does exactly what you’d expect:
>
> |# pfctl -sr -a "*" anchor "foo" all { anchor "bar" all { pass in all
> flags S/SA keep state } } # pfctl -sr -a "foo/*" anchor "bar" all { pass
> in all flags S/SA keep state } |
>
> However, if we |pfctl -Fr| to flush all rules:
>
> |# pfctl -Fr rules cleared # pfctl -sr -a "*" # pfctl -sr -a "foo/*"
> anchor "bar" all { pass in all flags S/SA keep state } |
>
> Unloading pf to actually delete the bar anchor, and then we set:
>
> |anchor “foo” |
>
> And then
>
> |# echo "pass" | pfctl -g -f - -a "foo/bar" # pfctl -sr -a "*" anchor
> "foo" all { } # pfctl -sr -a "foo/*" # pfctl -sr -a "foo/bar" pass all
> flags S/SA keep state |
>
> There are a lot of issues there, and it’ll take a lot of time and effort
> to root them out. My plan is to drink heavily and attempt to forget.
Hah. Well thank you for looking at it! I do think it's not something to
stress about too much.
>
> Kristof
>
--
Bryan Drewery