[libvirt] [PATCH v2] selinux: relabel tapfd in qemuPhysIfaceConnect

Guannan Ren gren at redhat.com
Thu Oct 18 17:05:10 UTC 2012


On 10/19/2012 12:42 AM, Eric Blake wrote:
> On 10/18/2012 09:08 AM, Guannan Ren wrote:
>> Relabeling tapfd right after the tap device is created.
>> qemuPhysIfaceConnect is common function called both for static
>> netdevs and for hotplug netdevs.
>> ---
>>   src/qemu/qemu_command.c | 14 ++++++++++----
>>   1 file changed, 10 insertions(+), 4 deletions(-)
>>
>> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
>> index 0c0c400..f727cb6 100644
>> --- a/src/qemu/qemu_command.c
>> +++ b/src/qemu/qemu_command.c
>> @@ -171,11 +171,21 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
>>           virDomainNetGetActualBandwidth(net));
>>       if (rc >= 0) {
>>           virDomainAuditNetDevice(def, net, res_ifname, true);
>> +
>> +        if (virSecurityManagerSetTapFDLabel(driver->securityManager,
>> +                                            def, rc) < 0)
>> +            goto error;
>> +
> Hmm.  Here, we now have a misleading audit, which says we successfully
> opened a net device, even though due to the relabel we are not using
> that device.  I think you need to leave the successful audit point after
> the relabel attempt.
>

     Thanks for the review.
     v3 sent out :)

     Guannan




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