On Thu, Nov 12, 2009 at 8:20 PM, Daniel P. Berrange <berrange@redhat.com> wrote:
On Tue, Nov 10, 2009 at 07:03:53PM +0900, Ryota Ozaki wrote:
Hi,
I have a question about interface script (e.g., qemu-ifup) for qemu/kvm. qemu/kvm is dropped its all capabilities by libcap-ng before executed. So the script that is executed by qemu/kvm will fail if it executes privileged operations which are usual jobs of it.
It means we cannot use <script> anymore? or I'm missing something?
That is correct.
I think executing the script in libvirtd after creating a tap and before dropping capabilities would be a solution for that issue. Am I wrong?
If we want to keep the 'script' capability, then that is pretty much the only option I see. Personally though I'd rather people never used the script capability because its an opaque blackbox doing who knows what
Honestly said, I was so ;-) but now I want to incorporate external networking tools like Open vSwitch and such tools require own special command to connect a tap with their bridge-like interface. Then I first attempted 'script' feature and got the problem. I think another way is that libvirt supports such tools inside like ebtables. Is it appreciate to libvirt? If so, I'm welcome to do that. Thanks, ozaki-r
Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|