Which snap interface allows accessing /dev/rfkill?

Jamie Bennett jamie.bennett at canonical.com
Thu Jan 19 09:49:57 UTC 2017

Hi Tonny,

A quick grep of the snapd source code shows that /dev/rfkill is part of the network-control and network-manager interfaces.


> On 19 Jan 2017, at 09:41, Tonny Tzeng <tonny.tzeng at gmail.com> wrote:
> Hi,
> I'd like to unblock the Bluetooth interface on Ubuntu Core, so I use 'stage-packages' keyword to install 'rfkill' package to my snap. If I install the snap in devmode, the rfkill command works as expected. But if the snap is installed in confined mode, I always get 'Permission denied', and the /var/log/syslog shows below message:
> Jan 19 09:17:42 localhost kernel: [177262.419927] audit: type=1400 audit(1484817462.015:2031): apparmor="DENIED" operation="open" profile="snap.iotivity-smarthome-demo.rfkill" name="/dev/rfkill" pid=14430 comm="rfkill" requested_mask="r" denied_mask="r" fsuid=1001 ouid=0
> Would anyone help me which interface should I declare with the plugs keyword?  I've tried hardware-observe and bluetooth-control interfaces but no success. Any pointers would be appreciated, thanks in advance.
> Best Regards,
> Tonny
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