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guid_valid
2020 Aug 30
1
Re: plug pre-created tap devices to libvirt guests
...ead of
> > time, libvirt should then be able to open it and give it to QEMU
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/tun.c#n586
>
> ((uid_valid(tun->owner) && !uid_eq(cred->euid, tun->owner)) ||
> (gid_valid(tun->group) && !in_egroup_p(tun->group))) &&
> !ns_capable(net->user_ns, CAP_NET_ADMIN);
>
>
> This is called by the TUNSETIFF code.
>
> AFAICT, that means if you fchown(tapfd, uid, gid), to the uid+gid of
> libvirtd, it should not requir...
2020 Jun 30
1
Re: plug pre-created tap devices to libvirt guests
On Tue, Jun 30, 2020 at 12:59:03PM +0200, Miguel Duarte de Mora Barroso wrote:
> On Mon, Apr 6, 2020 at 4:03 PM Laine Stump <lstump@redhat.com> wrote:
> >
> > On 4/6/20 9:54 AM, Daniel P. Berrangé wrote:
> > > On Mon, Apr 06, 2020 at 03:47:01PM +0200, Miguel Duarte de Mora Barroso wrote:
> > >> Hi all,
> > >>
> > >> I'm aware