[PATCH] Don't autogenerate seclabels of type 'none'

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When security drivers are active and domain def contains
no <seclabel> elements, there is no need to autogenerate
seclabels when starting the domain, e.g.

  <seclabel type='none' model='apparmor'/>

In fact, autogenerating the label can result in needless
save/restore and migration failures when the security driver
is not active on the restore/migration target.

The virSecurityManagerGenLabel function in src/security_manager.c
even has logic to skip autogenerated labels, but the logic
is a bit flawed. Autogeneration should be skipped when the
domain has not seclabels, i.e. vm->nseclabels == 0.

Resolves: https://bugzilla.opensuse.org/show_bug.cgi?id=1051017
Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxx>
---
 src/security/security_manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/security/security_manager.c b/src/security/security_manager.c
index 013bbc37e..441c4d1fd 100644
--- a/src/security/security_manager.c
+++ b/src/security/security_manager.c
@@ -670,7 +670,7 @@ virSecurityManagerGenLabel(virSecurityManagerPtr mgr,
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                                _("Unconfined guests are not allowed on this host"));
                 goto cleanup;
-            } else if (vm->nseclabels && generated) {
+            } else if (vm->nseclabels == 0 && generated) {
                 VIR_DEBUG("Skipping auto generated seclabel of type none");
                 virSecurityLabelDefFree(seclabel);
                 seclabel = NULL;
-- 
2.13.1

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