Hi,
im my case , it works.
MAC is after DAC, so you should confirm libvird has the permission to your home dir.
thanks
At 2013-04-08 14:53:36,"Alexey Kardashevskiy" <aik@xxxxxxxxx> wrote: >Hi! > >I am trying libvirt on POWERPC64 with the default settings such as selinux >enabled. It is all good till I move images out of /var/lib/libvirt/images/. > >http://libvirt.org/drvqemu.html#securityselinux is saying that "If >attempting to use disk images in another location, the user/administrator >must ensure the directory has be given this requisite label. Likewise >physical block devices must be labelled system_u:object_r:virt_image_t.". > >So did I: > >[root@vpl2 ~]# ls -dlZ /home/aik/virtimg /var/lib/libvirt/images >drwxr-xr-x. root root system_u:object_r:virt_image_t:s0 /home/aik/virtimg >drwxr-xr-x. root root system_u:object_r:virt_image_t:s0 /var/lib/libvirt/images > >[root@vpl2 ~]# ls -lZ /home/aik/virtimg /var/lib/libvirt/images >/home/aik/virtimg: >-rwxrwxrwx. root root system_u:object_r:virt_content_t:s0 >Fedora-18-ppc64-DVD.iso > >/var/lib/libvirt/images: >-rwxrwxrwx. root root system_u:object_r:virt_image_t:s0 fc18guest > > >However "virsh -c qemu:///system create libvirtguest-aik.xml" failes with >"avc: denied { dac_override }" and "avc: denied { dac_read_search }". >Also, there is "user system_u is not defined" in /var/log/messages what is >confusing as "semanage user -l" says it is there. > >If I simply move Fedora-18-ppc64-DVD.iso to /var/lib/libvirt/images, the >problem goes away and everything works fine. > > >I am running custom build 3.8 kernel and libvirt from git ("eebbb23 qemu: >support URI syntax for NBD"). > >More detailed output is below, this is all from the host system. > > >What do I miss? Thank you. > > >[root@vpl2 ~]# tail /var/log/messages >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.sepol_context_to_sid: >could not convert system_u:system_r:svirt_t:s0:c263,c837 to sid >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.context_from_record: user >system_u is not defined >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.context_from_record: could >not create context structure >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.context_from_string: could >not create context structure >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.sepol_context_to_sid: >could not convert system_u:system_r:svirt_t:s0:c263,c837 to sid >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.context_from_record: user >system_u is not defined >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.context_from_record: could >not create context structure >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.context_from_string: could >not create context structure >Apr 8 16:47:48 vpl2 dbus-daemon[2903]: libsepol.sepol_context_to_sid: >could not convert system_u:system_r:svirt_t:s0:c263,c837 to sid >Apr 8 16:47:48 vpl2 libvirtd[5041]: failed to connect to monitor socket: >No such process > > >[root@vpl2 ~]# semanage user -l > > Labeling MLS/ MLS/ >SELinux User Prefix MCS Level MCS Range >SELinux Roles > >git_shell_u user s0 s0 >git_shell_r >guest_u user s0 s0 guest_r >root user s0 s0-s0:c0.c1023 >staff_r sysadm_r system_r unconfined_r >staff_u user s0 s0-s0:c0.c1023 >staff_r sysadm_r system_r unconfined_r >sysadm_u user s0 s0-s0:c0.c1023 sysadm_r >system_u user s0 s0-s0:c0.c1023 >system_r unconfined_r >unconfined_u user s0 s0-s0:c0.c1023 >system_r unconfined_r >user_u user s0 s0 user_r >xguest_u user s0 s0 xguest_r > > > >[root@vpl2 ~]# tail /var/log/audit/audit.log >type=NETFILTER_CFG msg=audit(1365403596.177:4507): table=nat family=2 >entries=60 >type=NETFILTER_CFG msg=audit(1365403596.177:4508): table=nat family=2 >entries=61 >type=AVC msg=audit(1365403606.017:4509): avc: denied { dac_override } for > pid=8944 comm="qemu-system-ppc" capability=1 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4510): avc: denied { dac_read_search } >for pid=8944 comm="qemu-system-ppc" capability=2 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4511): avc: denied { dac_override } for > pid=8944 comm="qemu-system-ppc" capability=1 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4512): avc: denied { dac_read_search } >for pid=8944 comm="qemu-system-ppc" capability=2 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4513): avc: denied { dac_override } for > pid=8944 comm="qemu-system-ppc" capability=1 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4514): avc: denied { dac_read_search } >for pid=8944 comm="qemu-system-ppc" capability=2 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4515): avc: denied { dac_override } for > pid=8944 comm="qemu-system-ppc" capability=1 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability >type=AVC msg=audit(1365403606.017:4516): avc: denied { dac_read_search } >for pid=8944 comm="qemu-system-ppc" capability=2 >scontext=system_u:system_r:svirt_t:s0:c574,c809 >tcontext=system_u:system_r:svirt_t:s0:c574,c809 tclass=capability > > > > >[root@vpl2 ~]# libvirtd --version >libvirtd (libvirt) 1.0.3 >[root@vpl2 ~]# yum info policycoreutils >[...] >Arch : ppc64 >Version : 2.1.13 >Release : 59.fc18 >Size : 3.8 M > >[root@vpl2 ~]# cat /etc/fedora-release >Fedora release 18 (Spherical Cow) > >[root@vpl2 ~]# uname -a >Linux vpl2.ozlabs.ibm.com 3.8.0-kvm-64k-aik+ #376 SMP Mon Apr 8 14:40:40 >EST 2013 ppc64 ppc64 ppc64 GNU/Linux > >[aik@vpl2 ~]$ cat libvirtguest-aik.xml ><domain type='kvm'> > <name>AikLibvirtTest</name> > <memory>2097152</memory> > <vcpu>2</vcpu> > <os> > <type arch='ppc64' machine='pseries'>hvm</type> > <boot dev='cdrom'/> > <boot dev='hd'/> > </os> > <clock offset='utc'/> > <devices> > <emulator>/usr/local/bin/qemu-system-ppc64</emulator> > <disk type='file' device='disk' > > <driver name='qemu' type='raw'/> > <source file='/var/lib/libvirt/images/fc18guest'/> > <target dev='sda' bus='scsi'/> > </disk> > <disk type='file' device='cdrom' > > <driver name='qemu' type='raw'/> > <source file='/home/aik/virtimg/Fedora-18-ppc64-DVD.iso'/> > <target dev='sdc' bus='scsi'/> > <readonly/> > </disk> > <serial type='pty'> > <target port='0'/> > </serial> > <console type='pty'> > <target type='serial' port='0'/> > </console> > <memballoon model='virtio'/> > </devices> > ></domain> > > > >-- >Alexey > >_______________________________________________ >libvirt-users mailing list >libvirt-users@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/libvirt-users
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