Re: git: e72c522858cb - main - divert(4): make it compilable and working without INET

On Wed, 7 Sep 2022, Gleb Smirnoff wrote:

> On Wed, Sep 07, 2022 at 09:54:49AM +0000, Bjoern A. Zeeb wrote:
> B> On Tue, 6 Sep 2022, Gleb Smirnoff wrote:
> B>
> B> > On Sun, Sep 04, 2022 at 06:39:53AM +0000, Bjoern A. Zeeb wrote:
> B> > B> > B> > Author:     Gleb Smirnoff <glebius@FreeBSD.org>
> B> > B> > B> > AuthorDate: 2022-08-30 22:09:21 +0000
> B> > B> > B> > Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
> B> > B> > B> > CommitDate: 2022-08-30 22:09:21 +0000
> B> > B> > B> >
> B> > B> > B> >    divert(4): make it compilable and working without INET
> B> > B> > B> >
> B> > B> > B> >    Differential revision:  https://reviews.freebsd.org/D36383
> B> > B> > B>
> B> > B> > B> Well, almost at least....
> B> > B> >
> B> > B> > I wonder why LINT-NOINET builds without this??
> B> > B>
> B> > B> I wondered the same last night.. I would be good to find out?
> B> >
> B> > Ok, I think that assumption that sysctl parts of divert require
> B> > INET were just wrong, that's why LINT-NOINET builds.
> B>
> B> Not entirely.  It's because sys/netinet/in_proto.c uncodonitionally
> B> currently provides _net_inet for the sysctl.
> B> The reason for that is that a lot of AF independent sysctls were initially
> B> put under inet but are equally used for inet6 or neither in the network stack.
> B>
> B> You will need at least #if defined(INET6) || defined(INET)  around the sysctls
> B> in divert.c then.
> B>
> B> A LINT-NOIP kernel will complain about the missing symbol if we keep compiling
> B> divert without INET or INET6 in the kernel:
>
> My goal was not to make divert(4) supported on NOIP kernel. The goal was to make
> it supported on NOINET, an IPv6 only kernel. I don't see any value for divert(4)
> on a kernel without either stack.

then we should stop compiling it in that case.

-- 
Bjoern A. Zeeb                                                     r15:7