Description of problem:
smartd is not allowed to access block devices, i.e. a hdd or ssd,  that is used by libvirt guests (scsi pool).
It would be useful to do so in order to get notifications in case of a hard disk failure that is detected by SMART.


libvirtd storage for /dev/sdc configuration in case it helps.

<pool type='scsi'>
  <name>aoa</name>
  <uuid>26154d1b-7a0c-51ef-b541-0e5bcdf30907</uuid>
  <capacity unit='bytes'>0</capacity>
  <allocation unit='bytes'>0</allocation>
  <available unit='bytes'>0</available>
  <source>
    <adapter name='host2'/>
  </source>
  <target>
    <path>/dev/disk/by-id</path>
    <permissions>
      <mode>0700</mode>
      <owner>4294967295</owner>
      <group>4294967295</group>
    </permissions>
  </target>
</pool>


Additional info:
libreport version: 2.0.18
kernel:         3.6.11-1.fc17.x86_64

description:
:SELinux is preventing smartd from 'read' accesses on the blk_file sdc.
:
:*****  Plugin catchall (100. confidence) suggests  ***************************
:
:If you believe that smartd should be allowed read access on the sdc blk_file by default.
:Then you should report this as a bug.
:You can generate a local policy module to allow this access.
:Do
:allow this access for now by executing:
:# grep smartd /var/log/audit/audit.log | audit2allow -M mypol
:# semodule -i mypol.pp
:
:Additional Information:
:Source Context                system_u:system_r:fsdaemon_t:s0
:Target Context                system_u:object_r:svirt_image_t:s0:c90,c581
:Target Objects                sdc [ blk_file ]
:Source                        smartd
:Source Path                   smartd
:Port                          <Άγνωστο>
:Host                          (removed)
:Source RPM Packages           
:Target RPM Packages           
:Policy RPM                    selinux-policy-3.10.0-161.fc17.noarch
:Selinux Enabled               True
:Policy Type                   targeted
:Enforcing Mode                Enforcing
:Host Name                     (removed)
:Platform                      Linux (removed) 3.6.11-1.fc17.x86_64 #1 SMP Mon
:                              Dec 17 22:16:35 UTC 2012 x86_64 x86_64
:Alert Count                   48
:First Seen                    2013-01-06 11:48:57 EET
:Last Seen                     2013-01-07 11:18:56 EET
:Local ID                      b9d7a7f2-360b-463c-bfcb-d8671bed3f84
:
:Raw Audit Messages
:type=AVC msg=audit(1357550336.769:446): avc:  denied  { read } for  pid=857 comm="smartd" name="sdc" dev="devtmpfs" ino=6150 scontext=system_u:system_r:fsdaemon_t:s0 tcontext=system_u:object_r:svirt_image_t:s0:c90,c581 tclass=blk_file
:
:
:Hash: smartd,fsdaemon_t,svirt_image_t,blk_file,read
:
:audit2allow
:
:#============= fsdaemon_t ==============
:allow fsdaemon_t svirt_image_t:blk_file read;
:
:audit2allow -R
:
:#============= fsdaemon_t ==============
:allow fsdaemon_t svirt_image_t:blk_file read;
: