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Date:      Wed, 28 Apr 2021 14:30:26 +0300
From:      =?UTF-8?Q?Ionu=C8=9B_Mihalache?= <ionut.mihalache1506@gmail.com>
To:        Mark Johnston <markj@freebsd.org>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: cap_sysctlbyname for hw.vmm.destroy
Message-ID:  <CAOxbktbsOGAEHZHEuHNrzP9ToyJVN0MvhqfRX_M-kxNOChD2Gw@mail.gmail.com>
In-Reply-To: <YIb66AlmFG0DPn%2BG@nuc>
References:  <CAOxbktY6GZY2rfyYMoTquyn04rM2GB5S2opAF1gDxh2177frLg@mail.gmail.com> <YIb66AlmFG0DPn%2BG@nuc>

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I tried to test the example from the documentation between here [1] and
here [2]. The code stops here [3].

[1] -
https://github.com/FreeBSD-UPB/freebsd-src/blob/3a08ffe4839de9b8396b1760f1d=
c42b066428807/usr.sbin/bhyve/bhyverun.c#L1538
[2] -
https://github.com/FreeBSD-UPB/freebsd-src/blob/3a08ffe4839de9b8396b1760f1d=
c42b066428807/usr.sbin/bhyve/bhyverun.c#L1585
[3] -
https://github.com/FreeBSD-UPB/freebsd-src/blob/3a08ffe4839de9b8396b1760f1d=
c42b066428807/usr.sbin/bhyve/bhyverun.c#L1581

=C3=8En lun., 26 apr. 2021 la 20:40, Mark Johnston <markj@freebsd.org> a sc=
ris:

> On Mon, Apr 26, 2021 at 05:16:14PM +0300, Ionu=C8=9B Mihalache wrote:
> > Hello,
> >
> > I am working on adding capsicum support for the bhyve snapshot feature.
> At
> > the end of the suspend process, the guest should be destroyed and the
> code
> > handles this part with a sysctlbyname call which is not working in
> > capability mode. I don't know what is the problem but even when using
> > cap_sysctlbyname I still get the same error code (EPERM). I tried the
> > example from the documentation aswell [1] and still the same error code=
.
> > What could be the problem? I have a FreeBSD13 host and a FreeBSD13 gues=
t.
>
> I'm not sure why it would happen unless the casper process is somehow
> running as a non-root user.  Can you share the code you're testing
> somewhere?
>



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