[libvirt-users] Customize UNIX socket permissions

Daniel P. Berrange berrange at redhat.com
Wed Sep 4 10:01:52 UTC 2013


On Tue, Sep 03, 2013 at 12:22:20PM -0400, Jonathan Lebon wrote:
> Hi,
> 
> I have a qemu domain which uses a virtio-serial port. On the
> host, the unix socket is created in /var/lib/libvirt/qemu.
> As non-root, I'd like to be able to communicate through this
> unix socket.
> 
> The issue is that the socket is created as qemu:qemu with
> permissions 755 (does this come from libvirt's umask?). Is
> there any way to affect this permission from the domain's
> XML definition file? Even if it has to be created as
> qemu:qemu, having a permission of 775 would also be an
> acceptable solution.

Our recommendation is to not try to use the UNIX socket directly, but
instead use the virDomainOpenChannel() API to read/write data on it
from an application.


Daniel
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