security: Introduce virSecurityManagerGetDriver()

This function returns the name of the secdriver. Since the name
is invariant we don't really need to lock the manager - it won't
change.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NCole Robinson <crobinso@redhat.com>

src/security/security_manager.c

@@ -332,6 +332,13 @@ virSecurityManagerGetVirtDriver(virSecurityManagerPtr mgr)
 }
 
 
+const char *
+virSecurityManagerGetDriver(virSecurityManagerPtr mgr)
+{
+    return mgr->drv->name;
+}
+
+
 const char *
 virSecurityManagerGetDOI(virSecurityManagerPtr mgr)
 {

src/security/security_manager.h

@@ -80,6 +80,7 @@ void virSecurityManagerTransactionAbort(virSecurityManagerPtr mgr);
 
 void *virSecurityManagerGetPrivateData(virSecurityManagerPtr mgr);
 
+const char *virSecurityManagerGetDriver(virSecurityManagerPtr mgr);
 const char *virSecurityManagerGetVirtDriver(virSecurityManagerPtr mgr);
 const char *virSecurityManagerGetDOI(virSecurityManagerPtr mgr);
 const char *virSecurityManagerGetModel(virSecurityManagerPtr mgr);