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Jim Fehlig authored
When performing an install, it's common for tooling such as virt-install to remove the install kernel/initrd once they are successfully booted and the domain has been redefined to boot without them. After the installation is complete and the domain is rebooted/shutdown, the DAC and selinux security drivers attempt to restore labels on the now deleted files. It's harmles wrt functionality, but results in error messages such as Mar 08 12:40:37 virtqemud[5639]: internal error: child reported (status=125): unable to stat: /var/lib/libvirt/boot/vir> Mar 08 12:40:37 virtqemud[5639]: unable to stat: /var/lib/libvirt/boot/virtinst-yvp19moo-linux: No such file or directo> Mar 08 12:40:37 virtqemud[5639]: Unable to run security manager transaction Add a check for file existence to the virSecurity*RestoreFileLabel functions, and avoid relabeling if the file is no longer available. Skipping the restore caused failures in qemusecuritytest, which mocks stat, chown, etc as part of ensuring the security drivers properly restore labels. virFileExists is now mocked in qemusecuritymock.c to return true when passed a file previously seen by the mocked stat, chown, etc functions. Signed-off-by: Jim Fehlig <jfehlig@suse.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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