libvirt users - Mar 2014 - TUN/TAP device for lxc guest

I want to run a VPN software inside an lxc guest, but the required TUN/TAP
device (/dev/net/tun) is missing in the container. Anyone knows how to
enable this device ? Here is the definition XML:

<domain type="lxc">
  <name>centos</name>
  <memory unit="MiB">1024</memory>
  <os>
    <type>exe</type>
    <init>/sbin/init</init>
  </os>
  <devices>
    <console type="pty"/>
    <filesystem type="mount">
      <source dir="/virsh/centos"/>
      <target dir="/"/>
    </filesystem>
    <interface type="bridge">
      <source bridge="br0"/>
      <model type="virtio"/>
    </interface>
  </devices>
</domain>

Thanks
Yao

On Fri, Mar 28, 2014 at 12:06:41PM +0800, 邓尧 wrote:
> I want to run a VPN software inside an lxc guest, but the required TUN/TAP
> device (/dev/net/tun) is missing in the container. Anyone knows how to
> enable this device ? Here is the definition XML:
We only create a few device nodes by default:

  http://libvirt.org/drvlxc.html#devnodes

You can ask for more using this syntax:

  http://libvirt.org/formatdomain.html#elementsHostDevCaps

eg

  <hostdev mode='capabilities' type='misc'>
    <source>
      <char>/dev/net/tun</char>
    </source>
  </hostdev>



Regards,
Daniel
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